Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar: "Kernel side changes: - Intel Knights Landing support. (Harish Chegondi) - Intel Broadwell-EP uncore PMU support. (Kan Liang) - Core code improvements. (Peter Zijlstra.) - Event filter, LBR and PEBS fixes. (Stephane Eranian) - Enable cycles:pp on Intel Atom. (Stephane Eranian) - Add cycles:ppp support for Skylake. (Andi Kleen) - Various x86 NMI overhead optimizations. (Andi Kleen) - Intel PT enhancements. (Takao Indoh) - AMD cache events fix. (Vince Weaver) Tons of tooling changes: - Show random perf tool tips in the 'perf report' bottom line (Namhyung Kim) - perf report now defaults to --group if the perf.data file has grouped events, try it with: # perf record -e '{cycles,instructions}' -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ] # perf report # Samples: 1K of event 'anon group { cycles, instructions }' # Event count (approx.): 1955219195 # # Overhead Command Shared Object Symbol 2.86% 0.22% swapper [kernel.kallsyms] [k] intel_idle 1.05% 0.33% firefox libxul.so [.] js::SetObjectElement 1.05% 0.00% kworker/0:3 [kernel.kallsyms] [k] gen6_ring_get_seqno 0.88% 0.17% chrome chrome [.] 0x0000000000ee27ab 0.65% 0.86% firefox libxul.so [.] js::ValueToId<(js::AllowGC)1> 0.64% 0.23% JS Helper libxul.so [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay 0.62% 1.27% firefox libxul.so [.] js::GetIterator 0.61% 1.74% firefox libxul.so [.] js::NativeSetProperty 0.61% 0.31% firefox libxul.so [.] js::SetPropertyByDefining - Introduce the 'perf stat record/report' workflow: Generate perf.data files from 'perf stat', to tap into the scripting capabilities perf has instead of defining a 'perf stat' specific scripting support to calculate event ratios, etc. Simple example: $ perf stat record -e cycles usleep 1 Performance counter stats for 'usleep 1': 1,134,996 cycles 0.000670644 seconds time elapsed $ perf stat report Performance counter stats for '/home/acme/bin/perf stat record -e cycles usleep 1': 1,134,996 cycles 0.000670644 seconds time elapsed $ It generates PERF_RECORD_ userspace records to store the details: $ perf report -D | grep PERF_RECORD 0xf0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 27637 0x118 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535 0x12a [0x40]: PERF_RECORD_STAT_CONFIG 0x16a [0x30]: PERF_RECORD_STAT -1 -1 0x19a [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text 0x1da [0x18]: PERF_RECORD_STAT_ROUND [acme@ssdandy linux]$ An effort was made to make perf.data files generated like this to not generate cryptic messages when processed by older tools. The 'perf script' bits need rebasing, will go up later. - Make command line options always available, even when they depend on some feature being enabled, warning the user about use of such options (Wang Nan) - Support hw breakpoint events (mem:0xAddress) in the default output mode in 'perf script' (Wang Nan) - Fixes and improvements for supporting annotating ARM binaries, support ARM call and jump instructions, more work needed to have arch specific stuff separated into tools/perf/arch/*/annotate/ (Russell King) - Add initial 'perf config' command, for now just with a --list command to the contents of the configuration file in use and a basic man page describing its format, commands for doing edits and detailed documentation are being reviewed and proof-read. (Taeung Song) - Allows BPF scriptlets specify arguments to be fetched using DWARF info, using a prologue generated at compile/build time (He Kuang, Wang Nan) - Allow attaching BPF scriptlets to module symbols (Wang Nan) - Allow attaching BPF scriptlets to userspace code using uprobe (Wang Nan) - BPF programs now can specify 'perf probe' tunables via its section name, separating key=val values using semicolons (Wang Nan) Testing some of these new BPF features: Use case: get callchains when receiving SSL packets, filter then in the kernel, at arbitrary place. # cat ssl.bpf.c #define SEC(NAME) __attribute__((section(NAME), used)) struct pt_regs; SEC("func=__inet_lookup_established hnum") int func(struct pt_regs *ctx, int err, unsigned short port) { return err == 0 && port == 443; } char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # # perf record -a -g -e ssl.bpf.c ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.787 MB perf.data (3 samples) ] # perf script | head -30 swapper 0 [000] 58783.268118: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux) 856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux) 2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux) 2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux) 96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux) 969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux) 2dede5 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux) 95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux) 1163ffa start_kernel ([kernel.vmlinux].init.text) 11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text) 1163623 x86_64_start_kernel ([kernel.vmlinux].init.text) qemu-system-x86 9178 [003] 58785.792417: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 856660 netif_receive_skb_internal (/lib/modules/4.3.0+/build/vmlinux) 8566ec netif_receive_skb_sk (/lib/modules/4.3.0+/build/vmlinux) 430a br_handle_frame_finish ([bridge]) 48bc br_handle_frame ([bridge]) 855f44 __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) # - Use 'perf probe' various options to list functions, see what variables can be collected at any given point, experiment first collecting without a filter, then filter, use it together with 'perf trace', 'perf top', with or without callchains, if it explodes, please tell us! - Introduce a new callchain mode: "folded", that will list per line representations of all callchains for a give histogram entry, facilitating 'perf report' output processing by other tools, such as Brendan Gregg's flamegraph tools (Namhyung Kim) E.g: # perf report | grep -v ^# | head 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry | ---cpu_startup_entry | |--12.07%--start_secondary | --6.30%--rest_init start_kernel x86_64_start_reservations x86_64_start_kernel # Becomes, in "folded" mode: # perf report -g folded | grep -v ^# | head -5 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry 12.07% cpu_startup_entry;start_secondary 6.30% cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] call_cpuidle 11.23% call_cpuidle;cpu_startup_entry;start_secondary 5.67% call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter 11.23% cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary 5.67% cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 15.12% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter_state # The user can also select one of "count", "period" or "percent" as the first column. ... and lots of infrastructure enhancements, plus fixes and other changes, features I failed to list - see the shortlog and the git log for details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (271 commits) perf evlist: Add --trace-fields option to show trace fields perf record: Store data mmaps for dwarf unwind perf libdw: Check for mmaps also in MAP__VARIABLE tree perf unwind: Check for mmaps also in MAP__VARIABLE tree perf unwind: Use find_map function in access_dso_mem perf evlist: Remove perf_evlist__(enable|disable)_event functions perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does) perf report: Show random usage tip on the help line perf hists: Export a couple of hist functions perf diff: Use perf_hpp__register_sort_field interface perf tools: Add overhead/overhead_children keys defaults via string perf tools: Remove list entry from struct sort_entry perf tools: Include all tools/lib directory for tags/cscope/TAGS targets perf script: Align event name properly perf tools: Add missing headers in perf's MANIFEST perf tools: Do not show trace command if it's not compiled in perf report: Change default to use event group view perf top: Decay periods in callchains tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/ tools lib: Sync tools/lib/find_bit.c with the kernel ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2016-01-11 23:39:17 +0100
committer: Linus Torvalds <torvalds@linux-foundation.org> 2016-01-11 23:39:17 +0100
commit: 5cb52b5e1654f3f1ed9c32e34456d98559c85aa0 (patch)
tree: 737c73d6aef99a17f57c2974f1e2a142a5f1a377 /tools
parent: Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/k... (diff)
parent: Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
download: linux-5cb52b5e1654f3f1ed9c32e34456d98559c85aa0.tar.xz
linux-5cb52b5e1654f3f1ed9c32e34456d98559c85aa0.zip
213 files changed, 7897 insertions, 1621 deletions
diff --git a/tools/Makefile b/tools/Makefile
index 7dc820a8c1f1..0ba0df3b516f 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -96,7 +96,7 @@ cgroup_install firewire_install hv_install lguest_install perf_install usb_insta
 	$(call descend,$(@:_install=),install)
 
 selftests_install:
-	$(call descend,testing/$(@:_clean=),install)
+	$(call descend,testing/$(@:_install=),install)
 
 turbostat_install x86_energy_perf_policy_install:
 	$(call descend,power/x86/$(@:_install=),install)
diff --git a/tools/build/Makefile b/tools/build/Makefile
index a93036272d43..0d5a0e3a8fa9 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -25,7 +25,7 @@ export Q srctree CC LD
 MAKEFLAGS := --no-print-directory
 build     := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
-all: fixdep
+all: $(OUTPUT)fixdep
 
 clean:
 	$(call QUIET_CLEAN, fixdep)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 37ff4c9f92f1..02db3cdff20f 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -7,7 +7,7 @@ endif
 
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
@@ -101,7 +101,6 @@ ifeq ($(feature-all), 1)
   #
   $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
 else
-  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C $(feature_dir) $(addsuffix .bin,$(FEATURE_TESTS)) >/dev/null 2>&1)
   $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
@@ -123,13 +122,31 @@ define feature_print_text_code
     MSG = $(shell printf '...%30s: %s' $(1) $(2))
 endef
 
+#
+# generates feature value assignment for name, like:
+#   $(call feature_assign,dwarf) == feature-dwarf=1
+#
+feature_assign = feature-$(1)=$(feature-$(1))
+
 FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER)
-FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),feature-$(feat)($(feature-$(feat))))
-FEATURE_DUMP_FILE := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME))
+FEATURE_DUMP := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME))
 
-ifeq ($(dwarf-post-unwind),1)
-  FEATURE_DUMP += dwarf-post-unwind($(dwarf-post-unwind-text))
-endif
+feature_dump_check = $(eval $(feature_dump_check_code))
+define feature_dump_check_code
+  ifeq ($(findstring $(1),$(FEATURE_DUMP)),)
+    $(2) := 1
+  endif
+endef
+
+#
+# First check if any test from FEATURE_DISPLAY
+# and set feature_display := 1 if it does
+$(foreach feat,$(FEATURE_DISPLAY),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_display))
+
+#
+# Now also check if any other test changed,
+# so we force FEATURE-DUMP generation
+$(foreach feat,$(FEATURE_TESTS),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_dump_changed))
 
 # The $(feature_display) controls the default detection message
 # output. It's set if:
@@ -138,13 +155,13 @@ endif
 # - one of the $(FEATURE_DISPLAY) is not detected
 # - VF is enabled
 
-ifneq ("$(FEATURE_DUMP)","$(FEATURE_DUMP_FILE)")
-  $(shell echo "$(FEATURE_DUMP)" > $(FEATURE_DUMP_FILENAME))
-  feature_display := 1
+ifeq ($(feature_dump_changed),1)
+  $(shell rm -f $(FEATURE_DUMP_FILENAME))
+  $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
 endif
 
 feature_display_check = $(eval $(feature_check_display_code))
-define feature_display_check_code
+define feature_check_display_code
   ifneq ($(feature-$(1)), 1)
     feature_display := 1
   endif
@@ -161,11 +178,6 @@ ifeq ($(feature_display),1)
   $(info )
   $(info Auto-detecting system features:)
   $(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),))
-
-  ifeq ($(dwarf-post-unwind),1)
-    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
-  endif
-
   ifneq ($(feature_verbose),1)
     $(info )
   endif
diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include
index 4e09ad617a60..be630bed66d2 100644
--- a/tools/build/Makefile.include
+++ b/tools/build/Makefile.include
@@ -4,7 +4,7 @@ ifdef CROSS_COMPILE
 fixdep:
 else
 fixdep:
-	$(Q)$(MAKE) -C $(srctree)/tools/build fixdep
+	$(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep
 endif
 
 .PHONY: fixdep
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index cea04ce9f35c..bf8f0352264d 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -1,4 +1,3 @@
-
 FILES=					\
 	test-all.bin			\
 	test-backtrace.bin		\
@@ -38,38 +37,40 @@ FILES=					\
 	test-bpf.bin			\
 	test-get_cpuid.bin
 
+FILES := $(addprefix $(OUTPUT),$(FILES))
+
 CC := $(CROSS_COMPILE)gcc -MD
 PKG_CONFIG := $(CROSS_COMPILE)pkg-config
 
 all: $(FILES)
 
-__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ $(patsubst %.bin,%.c,$@) $(LDFLAGS)
-  BUILD = $(__BUILD) > $(OUTPUT)$(@:.bin=.make.output) 2>&1
+__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS)
+  BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1
 
 ###############################
 
-test-all.bin:
+$(OUTPUT)test-all.bin:
 	$(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl -lz -llzma
 
-test-hello.bin:
+$(OUTPUT)test-hello.bin:
 	$(BUILD)
 
-test-pthread-attr-setaffinity-np.bin:
+$(OUTPUT)test-pthread-attr-setaffinity-np.bin:
 	$(BUILD) -D_GNU_SOURCE -lpthread
 
-test-stackprotector-all.bin:
+$(OUTPUT)test-stackprotector-all.bin:
 	$(BUILD) -fstack-protector-all
 
-test-fortify-source.bin:
+$(OUTPUT)test-fortify-source.bin:
 	$(BUILD) -O2 -D_FORTIFY_SOURCE=2
 
-test-bionic.bin:
+$(OUTPUT)test-bionic.bin:
 	$(BUILD)
 
-test-libelf.bin:
+$(OUTPUT)test-libelf.bin:
 	$(BUILD) -lelf
 
-test-glibc.bin:
+$(OUTPUT)test-glibc.bin:
 	$(BUILD)
 
 DWARFLIBS := -ldw
@@ -77,37 +78,37 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
 DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
 endif
 
-test-dwarf.bin:
+$(OUTPUT)test-dwarf.bin:
 	$(BUILD) $(DWARFLIBS)
 
-test-libelf-mmap.bin:
+$(OUTPUT)test-libelf-mmap.bin:
 	$(BUILD) -lelf
 
-test-libelf-getphdrnum.bin:
+$(OUTPUT)test-libelf-getphdrnum.bin:
 	$(BUILD) -lelf
 
-test-libnuma.bin:
+$(OUTPUT)test-libnuma.bin:
 	$(BUILD) -lnuma
 
-test-numa_num_possible_cpus.bin:
+$(OUTPUT)test-numa_num_possible_cpus.bin:
 	$(BUILD) -lnuma
 
-test-libunwind.bin:
+$(OUTPUT)test-libunwind.bin:
 	$(BUILD) -lelf
 
-test-libunwind-debug-frame.bin:
+$(OUTPUT)test-libunwind-debug-frame.bin:
 	$(BUILD) -lelf
 
-test-libaudit.bin:
+$(OUTPUT)test-libaudit.bin:
 	$(BUILD) -laudit
 
-test-libslang.bin:
+$(OUTPUT)test-libslang.bin:
 	$(BUILD) -I/usr/include/slang -lslang
 
-test-gtk2.bin:
+$(OUTPUT)test-gtk2.bin:
 	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 
-test-gtk2-infobar.bin:
+$(OUTPUT)test-gtk2-infobar.bin:
 	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
 
 grep-libs  = $(filter -l%,$(1))
@@ -119,63 +120,63 @@ PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 
-test-libperl.bin:
+$(OUTPUT)test-libperl.bin:
 	$(BUILD) $(FLAGS_PERL_EMBED)
 
-test-libpython.bin:
+$(OUTPUT)test-libpython.bin:
 	$(BUILD)
 
-test-libpython-version.bin:
+$(OUTPUT)test-libpython-version.bin:
 	$(BUILD)
 
-test-libbfd.bin:
+$(OUTPUT)test-libbfd.bin:
 	$(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl
 
-test-liberty.bin:
-	$(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty
+$(OUTPUT)test-liberty.bin:
+	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty
 
-test-liberty-z.bin:
-	$(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz
+$(OUTPUT)test-liberty-z.bin:
+	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz
 
-test-cplus-demangle.bin:
+$(OUTPUT)test-cplus-demangle.bin:
 	$(BUILD) -liberty
 
-test-backtrace.bin:
+$(OUTPUT)test-backtrace.bin:
 	$(BUILD)
 
-test-timerfd.bin:
+$(OUTPUT)test-timerfd.bin:
 	$(BUILD)
 
-test-libdw-dwarf-unwind.bin:
+$(OUTPUT)test-libdw-dwarf-unwind.bin:
 	$(BUILD) # -ldw provided by $(FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind)
 
-test-libbabeltrace.bin:
+$(OUTPUT)test-libbabeltrace.bin:
 	$(BUILD) # -lbabeltrace provided by $(FEATURE_CHECK_LDFLAGS-libbabeltrace)
 
-test-sync-compare-and-swap.bin:
+$(OUTPUT)test-sync-compare-and-swap.bin:
 	$(BUILD)
 
-test-compile-32.bin:
-	$(CC) -m32 -o $(OUTPUT)$@ test-compile.c
+$(OUTPUT)test-compile-32.bin:
+	$(CC) -m32 -o $@ test-compile.c
 
-test-compile-x32.bin:
-	$(CC) -mx32 -o $(OUTPUT)$@ test-compile.c
+$(OUTPUT)test-compile-x32.bin:
+	$(CC) -mx32 -o $@ test-compile.c
 
-test-zlib.bin:
+$(OUTPUT)test-zlib.bin:
 	$(BUILD) -lz
 
-test-lzma.bin:
+$(OUTPUT)test-lzma.bin:
 	$(BUILD) -llzma
 
-test-get_cpuid.bin:
+$(OUTPUT)test-get_cpuid.bin:
 	$(BUILD)
 
-test-bpf.bin:
+$(OUTPUT)test-bpf.bin:
 	$(BUILD)
 
--include *.d
+-include $(OUTPUT)*.d
 
 ###############################
 
 clean:
-	rm -f $(FILES) *.d $(FILES:.bin=.make.output)
+	rm -f $(FILES) $(OUTPUT)*.d $(FILES:.bin=.make.output)
diff --git a/tools/perf/util/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index 40bd21488032..28f5493da491 100644
--- a/tools/perf/util/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -11,6 +11,8 @@ int __bitmap_weight(const unsigned long *bitmap, int bits);
 void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
 		 const unsigned long *bitmap2, int bits);
 
+#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
+
 #define BITMAP_LAST_WORD_MASK(nbits)					\
 (									\
 	((nbits) % BITS_PER_LONG) ?					\
diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
new file mode 100644
index 000000000000..e26223f1f287
--- /dev/null
+++ b/tools/include/linux/string.h
@@ -0,0 +1,15 @@
+#ifndef _TOOLS_LINUX_STRING_H_
+#define _TOOLS_LINUX_STRING_H_
+
+
+#include <linux/types.h>	/* for size_t */
+
+void *memdup(const void *src, size_t len);
+
+int strtobool(const char *s, bool *res);
+
+#ifndef __UCLIBC__
+extern size_t strlcpy(char *dest, const char *src, size_t size);
+#endif
+
+#endif /* _LINUX_STRING_H_ */
diff --git a/tools/perf/util/bitmap.c b/tools/lib/bitmap.c
index 0a1adc1111fd..0a1adc1111fd 100644
--- a/tools/perf/util/bitmap.c
+++ b/tools/lib/bitmap.c
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index a3caaf3eafbd..919b71780710 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -71,7 +71,21 @@ FEATURE_DISPLAY = libelf bpf
 INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
 FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
 
+check_feat := 1
+NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
+  check_feat := 0
+endif
+endif
+
+ifeq ($(check_feat),1)
+ifeq ($(FEATURES_DUMP),)
 include $(srctree)/tools/build/Makefile.feature
+else
+include $(FEATURES_DUMP)
+endif
+endif
 
 export prefix libdir src obj
 
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index a6331050ab79..5bdc6eab6852 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -83,3 +83,17 @@ int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
 	log_buf[0] = 0;
 	return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
 }
+
+int bpf_map_update_elem(int fd, void *key, void *value,
+			u64 flags)
+{
+	union bpf_attr attr;
+
+	bzero(&attr, sizeof(attr));
+	attr.map_fd = fd;
+	attr.key = ptr_to_u64(key);
+	attr.value = ptr_to_u64(value);
+	attr.flags = flags;
+
+	return sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr));
+}
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 854b7361b784..a76465541292 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -20,4 +20,6 @@ int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
 		     u32 kern_version, char *log_buf,
 		     size_t log_buf_sz);
 
+int bpf_map_update_elem(int fd, void *key, void *value,
+			u64 flags);
 #endif
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index e176bad19bcb..8334a5a9d5d7 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -152,29 +152,36 @@ struct bpf_program {
 	} *reloc_desc;
 	int nr_reloc;
 
-	int fd;
+	struct {
+		int nr;
+		int *fds;
+	} instances;
+	bpf_program_prep_t preprocessor;
 
 	struct bpf_object *obj;
 	void *priv;
 	bpf_program_clear_priv_t clear_priv;
 };
 
+struct bpf_map {
+	int fd;
+	char *name;
+	struct bpf_map_def def;
+	void *priv;
+	bpf_map_clear_priv_t clear_priv;
+};
+
 static LIST_HEAD(bpf_objects_list);
 
 struct bpf_object {
 	char license[64];
 	u32 kern_version;
-	void *maps_buf;
-	size_t maps_buf_sz;
 
 	struct bpf_program *programs;
 	size_t nr_programs;
-	int *map_fds;
-	/*
-	 * This field is required because maps_buf will be freed and
-	 * maps_buf_sz will be set to 0 after loaded.
-	 */
-	size_t nr_map_fds;
+	struct bpf_map *maps;
+	size_t nr_maps;
+
 	bool loaded;
 
 	/*
@@ -188,6 +195,7 @@ struct bpf_object {
 		Elf *elf;
 		GElf_Ehdr ehdr;
 		Elf_Data *symbols;
+		size_t strtabidx;
 		struct {
 			GElf_Shdr shdr;
 			Elf_Data *data;
@@ -206,10 +214,25 @@ struct bpf_object {
 
 static void bpf_program__unload(struct bpf_program *prog)
 {
+	int i;
+
 	if (!prog)
 		return;
 
-	zclose(prog->fd);
+	/*
+	 * If the object is opened but the program was never loaded,
+	 * it is possible that prog->instances.nr == -1.
+	 */
+	if (prog->instances.nr > 0) {
+		for (i = 0; i < prog->instances.nr; i++)
+			zclose(prog->instances.fds[i]);
+	} else if (prog->instances.nr != -1) {
+		pr_warning("Internal error: instances.nr is %d\n",
+			   prog->instances.nr);
+	}
+
+	prog->instances.nr = -1;
+	zfree(&prog->instances.fds);
 }
 
 static void bpf_program__exit(struct bpf_program *prog)
@@ -260,7 +283,8 @@ bpf_program__init(void *data, size_t size, char *name, int idx,
 	memcpy(prog->insns, data,
 	       prog->insns_cnt * sizeof(struct bpf_insn));
 	prog->idx = idx;
-	prog->fd = -1;
+	prog->instances.fds = NULL;
+	prog->instances.nr = -1;
 
 	return 0;
 errout:
@@ -469,21 +493,77 @@ static int
 bpf_object__init_maps(struct bpf_object *obj, void *data,
 		      size_t size)
 {
-	if (size == 0) {
+	size_t nr_maps;
+	int i;
+
+	nr_maps = size / sizeof(struct bpf_map_def);
+	if (!data || !nr_maps) {
 		pr_debug("%s doesn't need map definition\n",
 			 obj->path);
 		return 0;
 	}
 
-	obj->maps_buf = malloc(size);
-	if (!obj->maps_buf) {
-		pr_warning("malloc maps failed: %s\n", obj->path);
+	pr_debug("maps in %s: %zd bytes\n", obj->path, size);
+
+	obj->maps = calloc(nr_maps, sizeof(obj->maps[0]));
+	if (!obj->maps) {
+		pr_warning("alloc maps for object failed\n");
 		return -ENOMEM;
 	}
+	obj->nr_maps = nr_maps;
 
-	obj->maps_buf_sz = size;
-	memcpy(obj->maps_buf, data, size);
-	pr_debug("maps in %s: %ld bytes\n", obj->path, (long)size);
+	for (i = 0; i < nr_maps; i++) {
+		struct bpf_map_def *def = &obj->maps[i].def;
+
+		/*
+		 * fill all fd with -1 so won't close incorrect
+		 * fd (fd=0 is stdin) when failure (zclose won't close
+		 * negative fd)).
+		 */
+		obj->maps[i].fd = -1;
+
+		/* Save map definition into obj->maps */
+		*def = ((struct bpf_map_def *)data)[i];
+	}
+	return 0;
+}
+
+static int
+bpf_object__init_maps_name(struct bpf_object *obj, int maps_shndx)
+{
+	int i;
+	Elf_Data *symbols = obj->efile.symbols;
+
+	if (!symbols || maps_shndx < 0)
+		return -EINVAL;
+
+	for (i = 0; i < symbols->d_size / sizeof(GElf_Sym); i++) {
+		GElf_Sym sym;
+		size_t map_idx;
+		const char *map_name;
+
+		if (!gelf_getsym(symbols, i, &sym))
+			continue;
+		if (sym.st_shndx != maps_shndx)
+			continue;
+
+		map_name = elf_strptr(obj->efile.elf,
+				      obj->efile.strtabidx,
+				      sym.st_name);
+		map_idx = sym.st_value / sizeof(struct bpf_map_def);
+		if (map_idx >= obj->nr_maps) {
+			pr_warning("index of map \"%s\" is buggy: %zu > %zu\n",
+				   map_name, map_idx, obj->nr_maps);
+			continue;
+		}
+		obj->maps[map_idx].name = strdup(map_name);
+		if (!obj->maps[map_idx].name) {
+			pr_warning("failed to alloc map name\n");
+			return -ENOMEM;
+		}
+		pr_debug("map %zu is \"%s\"\n", map_idx,
+			 obj->maps[map_idx].name);
+	}
 	return 0;
 }
 
@@ -492,7 +572,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj)
 	Elf *elf = obj->efile.elf;
 	GElf_Ehdr *ep = &obj->efile.ehdr;
 	Elf_Scn *scn = NULL;
-	int idx = 0, err = 0;
+	int idx = 0, err = 0, maps_shndx = -1;
 
 	/* Elf is corrupted/truncated, avoid calling elf_strptr. */
 	if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL)) {
@@ -542,16 +622,19 @@ static int bpf_object__elf_collect(struct bpf_object *obj)
 			err = bpf_object__init_kversion(obj,
 							data->d_buf,
 							data->d_size);
-		else if (strcmp(name, "maps") == 0)
+		else if (strcmp(name, "maps") == 0) {
 			err = bpf_object__init_maps(obj, data->d_buf,
 						    data->d_size);
-		else if (sh.sh_type == SHT_SYMTAB) {
+			maps_shndx = idx;
+		} else if (sh.sh_type == SHT_SYMTAB) {
 			if (obj->efile.symbols) {
 				pr_warning("bpf: multiple SYMTAB in %s\n",
 					   obj->path);
 				err = -LIBBPF_ERRNO__FORMAT;
-			} else
+			} else {
 				obj->efile.symbols = data;
+				obj->efile.strtabidx = sh.sh_link;
+			}
 		} else if ((sh.sh_type == SHT_PROGBITS) &&
 			   (sh.sh_flags & SHF_EXECINSTR) &&
 			   (data->d_size > 0)) {
@@ -586,6 +669,13 @@ static int bpf_object__elf_collect(struct bpf_object *obj)
 		if (err)
 			goto out;
 	}
+
+	if (!obj->efile.strtabidx || obj->efile.strtabidx >= idx) {
+		pr_warning("Corrupted ELF file: index of strtab invalid\n");
+		return LIBBPF_ERRNO__FORMAT;
+	}
+	if (maps_shndx >= 0)
+		err = bpf_object__init_maps_name(obj, maps_shndx);
 out:
 	return err;
 }
@@ -668,37 +758,15 @@ static int
 bpf_object__create_maps(struct bpf_object *obj)
 {
 	unsigned int i;
-	size_t nr_maps;
-	int *pfd;
-
-	nr_maps = obj->maps_buf_sz / sizeof(struct bpf_map_def);
-	if (!obj->maps_buf || !nr_maps) {
-		pr_debug("don't need create maps for %s\n",
-			 obj->path);
-		return 0;
-	}
-
-	obj->map_fds = malloc(sizeof(int) * nr_maps);
-	if (!obj->map_fds) {
-		pr_warning("realloc perf_bpf_map_fds failed\n");
-		return -ENOMEM;
-	}
-	obj->nr_map_fds = nr_maps;
 
-	/* fill all fd with -1 */
-	memset(obj->map_fds, -1, sizeof(int) * nr_maps);
-
-	pfd = obj->map_fds;
-	for (i = 0; i < nr_maps; i++) {
-		struct bpf_map_def def;
+	for (i = 0; i < obj->nr_maps; i++) {
+		struct bpf_map_def *def = &obj->maps[i].def;
+		int *pfd = &obj->maps[i].fd;
 
-		def = *(struct bpf_map_def *)(obj->maps_buf +
-				i * sizeof(struct bpf_map_def));
-
-		*pfd = bpf_create_map(def.type,
-				      def.key_size,
-				      def.value_size,
-				      def.max_entries);
+		*pfd = bpf_create_map(def->type,
+				      def->key_size,
+				      def->value_size,
+				      def->max_entries);
 		if (*pfd < 0) {
 			size_t j;
 			int err = *pfd;
@@ -706,22 +774,17 @@ bpf_object__create_maps(struct bpf_object *obj)
 			pr_warning("failed to create map: %s\n",
 				   strerror(errno));
 			for (j = 0; j < i; j++)
-				zclose(obj->map_fds[j]);
-			obj->nr_map_fds = 0;
-			zfree(&obj->map_fds);
+				zclose(obj->maps[j].fd);
 			return err;
 		}
 		pr_debug("create map: fd=%d\n", *pfd);
-		pfd++;
 	}
 
-	zfree(&obj->maps_buf);
-	obj->maps_buf_sz = 0;
 	return 0;
 }
 
 static int
-bpf_program__relocate(struct bpf_program *prog, int *map_fds)
+bpf_program__relocate(struct bpf_program *prog, struct bpf_object *obj)
 {
 	int i;
 
@@ -741,7 +804,7 @@ bpf_program__relocate(struct bpf_program *prog, int *map_fds)
 			return -LIBBPF_ERRNO__RELOC;
 		}
 		insns[insn_idx].src_reg = BPF_PSEUDO_MAP_FD;
-		insns[insn_idx].imm = map_fds[map_idx];
+		insns[insn_idx].imm = obj->maps[map_idx].fd;
 	}
 
 	zfree(&prog->reloc_desc);
@@ -760,7 +823,7 @@ bpf_object__relocate(struct bpf_object *obj)
 	for (i = 0; i < obj->nr_programs; i++) {
 		prog = &obj->programs[i];
 
-		err = bpf_program__relocate(prog, obj->map_fds);
+		err = bpf_program__relocate(prog, obj);
 		if (err) {
 			pr_warning("failed to relocate '%s'\n",
 				   prog->section_name);
@@ -784,8 +847,7 @@ static int bpf_object__collect_reloc(struct bpf_object *obj)
 		Elf_Data *data = obj->efile.reloc[i].data;
 		int idx = shdr->sh_info;
 		struct bpf_program *prog;
-		size_t nr_maps = obj->maps_buf_sz /
-				 sizeof(struct bpf_map_def);
+		size_t nr_maps = obj->nr_maps;
 
 		if (shdr->sh_type != SHT_REL) {
 			pr_warning("internal error at %d\n", __LINE__);
@@ -860,13 +922,73 @@ static int
 bpf_program__load(struct bpf_program *prog,
 		  char *license, u32 kern_version)
 {
-	int err, fd;
+	int err = 0, fd, i;
 
-	err = load_program(prog->insns, prog->insns_cnt,
-			   license, kern_version, &fd);
-	if (!err)
-		prog->fd = fd;
+	if (prog->instances.nr < 0 || !prog->instances.fds) {
+		if (prog->preprocessor) {
+			pr_warning("Internal error: can't load program '%s'\n",
+				   prog->section_name);
+			return -LIBBPF_ERRNO__INTERNAL;
+		}
+
+		prog->instances.fds = malloc(sizeof(int));
+		if (!prog->instances.fds) {
+			pr_warning("Not enough memory for BPF fds\n");
+			return -ENOMEM;
+		}
+		prog->instances.nr = 1;
+		prog->instances.fds[0] = -1;
+	}
+
+	if (!prog->preprocessor) {
+		if (prog->instances.nr != 1) {
+			pr_warning("Program '%s' is inconsistent: nr(%d) != 1\n",
+				   prog->section_name, prog->instances.nr);
+		}
+		err = load_program(prog->insns, prog->insns_cnt,
+				   license, kern_version, &fd);
+		if (!err)
+			prog->instances.fds[0] = fd;
+		goto out;
+	}
+
+	for (i = 0; i < prog->instances.nr; i++) {
+		struct bpf_prog_prep_result result;
+		bpf_program_prep_t preprocessor = prog->preprocessor;
+
+		bzero(&result, sizeof(result));
+		err = preprocessor(prog, i, prog->insns,
+				   prog->insns_cnt, &result);
+		if (err) {
+			pr_warning("Preprocessing the %dth instance of program '%s' failed\n",
+				   i, prog->section_name);
+			goto out;
+		}
+
+		if (!result.new_insn_ptr || !result.new_insn_cnt) {
+			pr_debug("Skip loading the %dth instance of program '%s'\n",
+				 i, prog->section_name);
+			prog->instances.fds[i] = -1;
+			if (result.pfd)
+				*result.pfd = -1;
+			continue;
+		}
+
+		err = load_program(result.new_insn_ptr,
+				   result.new_insn_cnt,
+				   license, kern_version, &fd);
+
+		if (err) {
+			pr_warning("Loading the %dth instance of program '%s' failed\n",
+					i, prog->section_name);
+			goto out;
+		}
 
+		if (result.pfd)
+			*result.pfd = fd;
+		prog->instances.fds[i] = fd;
+	}
+out:
 	if (err)
 		pr_warning("failed to load program '%s'\n",
 			   prog->section_name);
@@ -970,10 +1092,8 @@ int bpf_object__unload(struct bpf_object *obj)
 	if (!obj)
 		return -EINVAL;
 
-	for (i = 0; i < obj->nr_map_fds; i++)
-		zclose(obj->map_fds[i]);
-	zfree(&obj->map_fds);
-	obj->nr_map_fds = 0;
+	for (i = 0; i < obj->nr_maps; i++)
+		zclose(obj->maps[i].fd);
 
 	for (i = 0; i < obj->nr_programs; i++)
 		bpf_program__unload(&obj->programs[i]);
@@ -1016,7 +1136,16 @@ void bpf_object__close(struct bpf_object *obj)
 	bpf_object__elf_finish(obj);
 	bpf_object__unload(obj);
 
-	zfree(&obj->maps_buf);
+	for (i = 0; i < obj->nr_maps; i++) {
+		zfree(&obj->maps[i].name);
+		if (obj->maps[i].clear_priv)
+			obj->maps[i].clear_priv(&obj->maps[i],
+						obj->maps[i].priv);
+		obj->maps[i].priv = NULL;
+		obj->maps[i].clear_priv = NULL;
+	}
+	zfree(&obj->maps);
+	obj->nr_maps = 0;
 
 	if (obj->programs && obj->nr_programs) {
 		for (i = 0; i < obj->nr_programs; i++)
@@ -1121,5 +1250,142 @@ const char *bpf_program__title(struct bpf_program *prog, bool needs_copy)
 
 int bpf_program__fd(struct bpf_program *prog)
 {
-	return prog->fd;
+	return bpf_program__nth_fd(prog, 0);
+}
+
+int bpf_program__set_prep(struct bpf_program *prog, int nr_instances,
+			  bpf_program_prep_t prep)
+{
+	int *instances_fds;
+
+	if (nr_instances <= 0 || !prep)
+		return -EINVAL;
+
+	if (prog->instances.nr > 0 || prog->instances.fds) {
+		pr_warning("Can't set pre-processor after loading\n");
+		return -EINVAL;
+	}
+
+	instances_fds = malloc(sizeof(int) * nr_instances);
+	if (!instances_fds) {
+		pr_warning("alloc memory failed for fds\n");
+		return -ENOMEM;
+	}
+
+	/* fill all fd with -1 */
+	memset(instances_fds, -1, sizeof(int) * nr_instances);
+
+	prog->instances.nr = nr_instances;
+	prog->instances.fds = instances_fds;
+	prog->preprocessor = prep;
+	return 0;
+}
+
+int bpf_program__nth_fd(struct bpf_program *prog, int n)
+{
+	int fd;
+
+	if (n >= prog->instances.nr || n < 0) {
+		pr_warning("Can't get the %dth fd from program %s: only %d instances\n",
+			   n, prog->section_name, prog->instances.nr);
+		return -EINVAL;
+	}
+
+	fd = prog->instances.fds[n];
+	if (fd < 0) {
+		pr_warning("%dth instance of program '%s' is invalid\n",
+			   n, prog->section_name);
+		return -ENOENT;
+	}
+
+	return fd;
+}
+
+int bpf_map__get_fd(struct bpf_map *map)
+{
+	if (!map)
+		return -EINVAL;
+
+	return map->fd;
+}
+
+int bpf_map__get_def(struct bpf_map *map, struct bpf_map_def *pdef)
+{
+	if (!map || !pdef)
+		return -EINVAL;
+
+	*pdef = map->def;
+	return 0;
+}
+
+const char *bpf_map__get_name(struct bpf_map *map)
+{
+	if (!map)
+		return NULL;
+	return map->name;
+}
+
+int bpf_map__set_private(struct bpf_map *map, void *priv,
+			 bpf_map_clear_priv_t clear_priv)
+{
+	if (!map)
+		return -EINVAL;
+
+	if (map->priv) {
+		if (map->clear_priv)
+			map->clear_priv(map, map->priv);
+	}
+
+	map->priv = priv;
+	map->clear_priv = clear_priv;
+	return 0;
+}
+
+int bpf_map__get_private(struct bpf_map *map, void **ppriv)
+{
+	if (!map)
+		return -EINVAL;
+
+	if (ppriv)
+		*ppriv = map->priv;
+	return 0;
+}
+
+struct bpf_map *
+bpf_map__next(struct bpf_map *prev, struct bpf_object *obj)
+{
+	size_t idx;
+	struct bpf_map *s, *e;
+
+	if (!obj || !obj->maps)
+		return NULL;
+
+	s = obj->maps;
+	e = obj->maps + obj->nr_maps;
+
+	if (prev == NULL)
+		return s;
+
+	if ((prev < s) || (prev >= e)) {
+		pr_warning("error in %s: map handler doesn't belong to object\n",
+			   __func__);
+		return NULL;
+	}
+
+	idx = (prev - obj->maps) + 1;
+	if (idx >= obj->nr_maps)
+		return NULL;
+	return &obj->maps[idx];
+}
+
+struct bpf_map *
+bpf_object__get_map_by_name(struct bpf_object *obj, const char *name)
+{
+	struct bpf_map *pos;
+
+	bpf_map__for_each(pos, obj) {
+		if (pos->name && !strcmp(pos->name, name))
+			return pos;
+	}
+	return NULL;
 }
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index c9a9aef2806c..a51594c7b518 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -88,6 +88,70 @@ const char *bpf_program__title(struct bpf_program *prog, bool needs_copy);
 
 int bpf_program__fd(struct bpf_program *prog);
 
+struct bpf_insn;
+
+/*
+ * Libbpf allows callers to adjust BPF programs before being loaded
+ * into kernel. One program in an object file can be transform into
+ * multiple variants to be attached to different code.
+ *
+ * bpf_program_prep_t, bpf_program__set_prep and bpf_program__nth_fd
+ * are APIs for this propose.
+ *
+ * - bpf_program_prep_t:
+ *   It defines 'preprocessor', which is a caller defined function
+ *   passed to libbpf through bpf_program__set_prep(), and will be
+ *   called before program is loaded. The processor should adjust
+ *   the program one time for each instances according to the number
+ *   passed to it.
+ *
+ * - bpf_program__set_prep:
+ *   Attachs a preprocessor to a BPF program. The number of instances
+ *   whould be created is also passed through this function.
+ *
+ * - bpf_program__nth_fd:
+ *   After the program is loaded, get resuling fds from bpf program for
+ *   each instances.
+ *
+ * If bpf_program__set_prep() is not used, the program whould be loaded
+ * without adjustment during bpf_object__load(). The program has only
+ * one instance. In this case bpf_program__fd(prog) is equal to
+ * bpf_program__nth_fd(prog, 0).
+ */
+
+struct bpf_prog_prep_result {
+	/*
+	 * If not NULL, load new instruction array.
+	 * If set to NULL, don't load this instance.
+	 */
+	struct bpf_insn *new_insn_ptr;
+	int new_insn_cnt;
+
+	/* If not NULL, result fd is set to it */
+	int *pfd;
+};
+
+/*
+ * Parameters of bpf_program_prep_t:
+ *  - prog:	The bpf_program being loaded.
+ *  - n:	Index of instance being generated.
+ *  - insns:	BPF instructions array.
+ *  - insns_cnt:Number of instructions in insns.
+ *  - res:	Output parameter, result of transformation.
+ *
+ * Return value:
+ *  - Zero: pre-processing success.
+ *  - Non-zero: pre-processing, stop loading.
+ */
+typedef int (*bpf_program_prep_t)(struct bpf_program *prog, int n,
+				  struct bpf_insn *insns, int insns_cnt,
+				  struct bpf_prog_prep_result *res);
+
+int bpf_program__set_prep(struct bpf_program *prog, int nr_instance,
+			  bpf_program_prep_t prep);
+
+int bpf_program__nth_fd(struct bpf_program *prog, int n);
+
 /*
  * We don't need __attribute__((packed)) now since it is
  * unnecessary for 'bpf_map_def' because they are all aligned.
@@ -101,4 +165,28 @@ struct bpf_map_def {
 	unsigned int max_entries;
 };
 
+/*
+ * There is another 'struct bpf_map' in include/linux/map.h. However,
+ * it is not a uapi header so no need to consider name clash.
+ */
+struct bpf_map;
+struct bpf_map *
+bpf_object__get_map_by_name(struct bpf_object *obj, const char *name);
+
+struct bpf_map *
+bpf_map__next(struct bpf_map *map, struct bpf_object *obj);
+#define bpf_map__for_each(pos, obj)		\
+	for ((pos) = bpf_map__next(NULL, (obj));	\
+	     (pos) != NULL;				\
+	     (pos) = bpf_map__next((pos), (obj)))
+
+int bpf_map__get_fd(struct bpf_map *map);
+int bpf_map__get_def(struct bpf_map *map, struct bpf_map_def *pdef);
+const char *bpf_map__get_name(struct bpf_map *map);
+
+typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
+int bpf_map__set_private(struct bpf_map *map, void *priv,
+			 bpf_map_clear_priv_t clear_priv);
+int bpf_map__get_private(struct bpf_map *map, void **ppriv);
+
 #endif
diff --git a/tools/lib/find_bit.c b/tools/lib/find_bit.c
new file mode 100644
index 000000000000..9122a9e80046
--- /dev/null
+++ b/tools/lib/find_bit.c
@@ -0,0 +1,84 @@
+/* bit search implementation
+ *
+ * Copied from lib/find_bit.c to tools/lib/find_bit.c
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * Copyright (C) 2008 IBM Corporation
+ * 'find_last_bit' is written by Rusty Russell <rusty@rustcorp.com.au>
+ * (Inspired by David Howell's find_next_bit implementation)
+ *
+ * Rewritten by Yury Norov <yury.norov@gmail.com> to decrease
+ * size and improve performance, 2015.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <linux/bitmap.h>
+#include <linux/kernel.h>
+
+#if !defined(find_next_bit)
+
+/*
+ * This is a common helper function for find_next_bit and
+ * find_next_zero_bit.  The difference is the "invert" argument, which
+ * is XORed with each fetched word before searching it for one bits.
+ */
+static unsigned long _find_next_bit(const unsigned long *addr,
+		unsigned long nbits, unsigned long start, unsigned long invert)
+{
+	unsigned long tmp;
+
+	if (!nbits || start >= nbits)
+		return nbits;
+
+	tmp = addr[start / BITS_PER_LONG] ^ invert;
+
+	/* Handle 1st word. */
+	tmp &= BITMAP_FIRST_WORD_MASK(start);
+	start = round_down(start, BITS_PER_LONG);
+
+	while (!tmp) {
+		start += BITS_PER_LONG;
+		if (start >= nbits)
+			return nbits;
+
+		tmp = addr[start / BITS_PER_LONG] ^ invert;
+	}
+
+	return min(start + __ffs(tmp), nbits);
+}
+#endif
+
+#ifndef find_next_bit
+/*
+ * Find the next set bit in a memory region.
+ */
+unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
+			    unsigned long offset)
+{
+	return _find_next_bit(addr, size, offset, 0UL);
+}
+#endif
+
+#ifndef find_first_bit
+/*
+ * Find the first set bit in a memory region.
+ */
+unsigned long find_first_bit(const unsigned long *addr, unsigned long size)
+{
+	unsigned long idx;
+
+	for (idx = 0; idx * BITS_PER_LONG < size; idx++) {
+		if (addr[idx])
+			return min(idx * BITS_PER_LONG + __ffs(addr[idx]), size);
+	}
+
+	return size;
+}
+#endif
diff --git a/tools/lib/string.c b/tools/lib/string.c
new file mode 100644
index 000000000000..bd239bc1d557
--- /dev/null
+++ b/tools/lib/string.c
@@ -0,0 +1,89 @@
+/*
+ *  linux/tools/lib/string.c
+ *
+ *  Copied from linux/lib/string.c, where it is:
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  More specifically, the first copied function was strtobool, which
+ *  was introduced by:
+ *
+ *  d0f1fed29e6e ("Add a strtobool function matching semantics of existing in kernel equivalents")
+ *  Author: Jonathan Cameron <jic23@cam.ac.uk>
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <linux/string.h>
+#include <linux/compiler.h>
+
+/**
+ * memdup - duplicate region of memory
+ *
+ * @src: memory region to duplicate
+ * @len: memory region length
+ */
+void *memdup(const void *src, size_t len)
+{
+	void *p = malloc(len);
+
+	if (p)
+		memcpy(p, src, len);
+
+	return p;
+}
+
+/**
+ * strtobool - convert common user inputs into boolean values
+ * @s: input string
+ * @res: result
+ *
+ * This routine returns 0 iff the first character is one of 'Yy1Nn0'.
+ * Otherwise it will return -EINVAL.  Value pointed to by res is
+ * updated upon finding a match.
+ */
+int strtobool(const char *s, bool *res)
+{
+	switch (s[0]) {
+	case 'y':
+	case 'Y':
+	case '1':
+		*res = true;
+		break;
+	case 'n':
+	case 'N':
+	case '0':
+		*res = false;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/**
+ * strlcpy - Copy a C-string into a sized buffer
+ * @dest: Where to copy the string to
+ * @src: Where to copy the string from
+ * @size: size of destination buffer
+ *
+ * Compatible with *BSD: the result is always a valid
+ * NUL-terminated string that fits in the buffer (unless,
+ * of course, the buffer size is zero). It does not pad
+ * out the result like strncpy() does.
+ *
+ * If libc has strlcpy() then that version will override this
+ * implementation:
+ */
+size_t __weak strlcpy(char *dest, const char *src, size_t size)
+{
+	size_t ret = strlen(src);
+
+	if (size) {
+		size_t len = (ret >= size) ? size - 1 : ret;
+		memcpy(dest, src, len);
+		dest[len] = '\0';
+	}
+	return ret;
+}
diff --git a/tools/lib/subcmd/Build b/tools/lib/subcmd/Build
new file mode 100644
index 000000000000..ee31288788c1
--- /dev/null
+++ b/tools/lib/subcmd/Build
@@ -0,0 +1,7 @@
+libsubcmd-y += exec-cmd.o
+libsubcmd-y += help.o
+libsubcmd-y += pager.o
+libsubcmd-y += parse-options.o
+libsubcmd-y += run-command.o
+libsubcmd-y += sigchain.o
+libsubcmd-y += subcmd-config.o
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
new file mode 100644
index 000000000000..629cf8c14e68
--- /dev/null
+++ b/tools/lib/subcmd/Makefile
@@ -0,0 +1,48 @@
+include ../../scripts/Makefile.include
+include ../../perf/config/utilities.mak		# QUIET_CLEAN
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
+RM = rm -f
+
+MAKEFLAGS += --no-print-directory
+
+LIBFILE = $(OUTPUT)libsubcmd.a
+
+CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
+
+CFLAGS += -I$(srctree)/tools/include/
+CFLAGS += -I$(srctree)/include/uapi
+CFLAGS += -I$(srctree)/include
+
+SUBCMD_IN := $(OUTPUT)libsubcmd-in.o
+
+all:
+
+export srctree OUTPUT CC LD CFLAGS V
+include $(srctree)/tools/build/Makefile.include
+
+all: fixdep $(LIBFILE)
+
+$(SUBCMD_IN): FORCE
+	@$(MAKE) $(build)=libsubcmd
+
+$(LIBFILE): $(SUBCMD_IN)
+	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SUBCMD_IN)
+
+clean:
+	$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
+	find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
+
+FORCE:
+
+.PHONY: clean FORCE
diff --git a/tools/lib/subcmd/exec-cmd.c b/tools/lib/subcmd/exec-cmd.c
new file mode 100644
index 000000000000..1ae833af1a4a
--- /dev/null
+++ b/tools/lib/subcmd/exec-cmd.c
@@ -0,0 +1,209 @@
+#include <linux/compiler.h>
+#include <linux/string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "subcmd-util.h"
+#include "exec-cmd.h"
+#include "subcmd-config.h"
+
+#define MAX_ARGS	32
+#define PATH_MAX	4096
+
+static const char *argv_exec_path;
+static const char *argv0_path;
+
+void exec_cmd_init(const char *exec_name, const char *prefix,
+		   const char *exec_path, const char *exec_path_env)
+{
+	subcmd_config.exec_name		= exec_name;
+	subcmd_config.prefix		= prefix;
+	subcmd_config.exec_path		= exec_path;
+	subcmd_config.exec_path_env	= exec_path_env;
+}
+
+#define is_dir_sep(c) ((c) == '/')
+
+static int is_absolute_path(const char *path)
+{
+	return path[0] == '/';
+}
+
+static const char *get_pwd_cwd(void)
+{
+	static char cwd[PATH_MAX + 1];
+	char *pwd;
+	struct stat cwd_stat, pwd_stat;
+	if (getcwd(cwd, PATH_MAX) == NULL)
+		return NULL;
+	pwd = getenv("PWD");
+	if (pwd && strcmp(pwd, cwd)) {
+		stat(cwd, &cwd_stat);
+		if (!stat(pwd, &pwd_stat) &&
+		    pwd_stat.st_dev == cwd_stat.st_dev &&
+		    pwd_stat.st_ino == cwd_stat.st_ino) {
+			strlcpy(cwd, pwd, PATH_MAX);
+		}
+	}
+	return cwd;
+}
+
+static const char *make_nonrelative_path(const char *path)
+{
+	static char buf[PATH_MAX + 1];
+
+	if (is_absolute_path(path)) {
+		if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
+			die("Too long path: %.*s", 60, path);
+	} else {
+		const char *cwd = get_pwd_cwd();
+		if (!cwd)
+			die("Cannot determine the current working directory");
+		if (snprintf(buf, PATH_MAX, "%s/%s", cwd, path) >= PATH_MAX)
+			die("Too long path: %.*s", 60, path);
+	}
+	return buf;
+}
+
+char *system_path(const char *path)
+{
+	char *buf = NULL;
+
+	if (is_absolute_path(path))
+		return strdup(path);
+
+	astrcatf(&buf, "%s/%s", subcmd_config.prefix, path);
+
+	return buf;
+}
+
+const char *extract_argv0_path(const char *argv0)
+{
+	const char *slash;
+
+	if (!argv0 || !*argv0)
+		return NULL;
+	slash = argv0 + strlen(argv0);
+
+	while (argv0 <= slash && !is_dir_sep(*slash))
+		slash--;
+
+	if (slash >= argv0) {
+		argv0_path = strndup(argv0, slash - argv0);
+		return argv0_path ? slash + 1 : NULL;
+	}
+
+	return argv0;
+}
+
+void set_argv_exec_path(const char *exec_path)
+{
+	argv_exec_path = exec_path;
+	/*
+	 * Propagate this setting to external programs.
+	 */
+	setenv(subcmd_config.exec_path_env, exec_path, 1);
+}
+
+
+/* Returns the highest-priority location to look for subprograms. */
+char *get_argv_exec_path(void)
+{
+	char *env;
+
+	if (argv_exec_path)
+		return strdup(argv_exec_path);
+
+	env = getenv(subcmd_config.exec_path_env);
+	if (env && *env)
+		return strdup(env);
+
+	return system_path(subcmd_config.exec_path);
+}
+
+static void add_path(char **out, const char *path)
+{
+	if (path && *path) {
+		if (is_absolute_path(path))
+			astrcat(out, path);
+		else
+			astrcat(out, make_nonrelative_path(path));
+
+		astrcat(out, ":");
+	}
+}
+
+void setup_path(void)
+{
+	const char *old_path = getenv("PATH");
+	char *new_path = NULL;
+	char *tmp = get_argv_exec_path();
+
+	add_path(&new_path, tmp);
+	add_path(&new_path, argv0_path);
+	free(tmp);
+
+	if (old_path)
+		astrcat(&new_path, old_path);
+	else
+		astrcat(&new_path, "/usr/local/bin:/usr/bin:/bin");
+
+	setenv("PATH", new_path, 1);
+
+	free(new_path);
+}
+
+static const char **prepare_exec_cmd(const char **argv)
+{
+	int argc;
+	const char **nargv;
+
+	for (argc = 0; argv[argc]; argc++)
+		; /* just counting */
+	nargv = malloc(sizeof(*nargv) * (argc + 2));
+
+	nargv[0] = subcmd_config.exec_name;
+	for (argc = 0; argv[argc]; argc++)
+		nargv[argc + 1] = argv[argc];
+	nargv[argc + 1] = NULL;
+	return nargv;
+}
+
+int execv_cmd(const char **argv) {
+	const char **nargv = prepare_exec_cmd(argv);
+
+	/* execvp() can only ever return if it fails */
+	execvp(subcmd_config.exec_name, (char **)nargv);
+
+	free(nargv);
+	return -1;
+}
+
+
+int execl_cmd(const char *cmd,...)
+{
+	int argc;
+	const char *argv[MAX_ARGS + 1];
+	const char *arg;
+	va_list param;
+
+	va_start(param, cmd);
+	argv[0] = cmd;
+	argc = 1;
+	while (argc < MAX_ARGS) {
+		arg = argv[argc++] = va_arg(param, char *);
+		if (!arg)
+			break;
+	}
+	va_end(param);
+	if (MAX_ARGS <= argc) {
+		fprintf(stderr, " Error: too many args to run %s\n", cmd);
+		return -1;
+	}
+
+	argv[argc] = NULL;
+	return execv_cmd(argv);
+}
diff --git a/tools/lib/subcmd/exec-cmd.h b/tools/lib/subcmd/exec-cmd.h
new file mode 100644
index 000000000000..5d08bda31d90
--- /dev/null
+++ b/tools/lib/subcmd/exec-cmd.h
@@ -0,0 +1,16 @@
+#ifndef __SUBCMD_EXEC_CMD_H
+#define __SUBCMD_EXEC_CMD_H
+
+extern void exec_cmd_init(const char *exec_name, const char *prefix,
+			  const char *exec_path, const char *exec_path_env);
+
+extern void set_argv_exec_path(const char *exec_path);
+extern const char *extract_argv0_path(const char *path);
+extern void setup_path(void);
+extern int execv_cmd(const char **argv); /* NULL terminated */
+extern int execl_cmd(const char *cmd, ...);
+/* get_argv_exec_path and system_path return malloc'd string, caller must free it */
+extern char *get_argv_exec_path(void);
+extern char *system_path(const char *path);
+
+#endif /* __SUBCMD_EXEC_CMD_H */
diff --git a/tools/perf/util/help.c b/tools/lib/subcmd/help.c
index 86c37c472263..e228c3cb3716 100644
--- a/tools/perf/util/help.c
+++ b/tools/lib/subcmd/help.c
@@ -1,9 +1,15 @@
-#include "cache.h"
-#include "../builtin.h"
-#include "exec_cmd.h"
-#include "levenshtein.h"
-#include "help.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include "subcmd-util.h"
+#include "help.h"
+#include "exec-cmd.h"
 
 void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
 {
@@ -17,7 +23,7 @@ void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
 	cmds->names[cmds->cnt++] = ent;
 }
 
-static void clean_cmdnames(struct cmdnames *cmds)
+void clean_cmdnames(struct cmdnames *cmds)
 {
 	unsigned int i;
 
@@ -28,14 +34,14 @@ static void clean_cmdnames(struct cmdnames *cmds)
 	cmds->alloc = 0;
 }
 
-static int cmdname_compare(const void *a_, const void *b_)
+int cmdname_compare(const void *a_, const void *b_)
 {
 	struct cmdname *a = *(struct cmdname **)a_;
 	struct cmdname *b = *(struct cmdname **)b_;
 	return strcmp(a->name, b->name);
 }
 
-static void uniq(struct cmdnames *cmds)
+void uniq(struct cmdnames *cmds)
 {
 	unsigned int i, j;
 
@@ -71,6 +77,28 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
 	cmds->cnt = cj;
 }
 
+static void get_term_dimensions(struct winsize *ws)
+{
+	char *s = getenv("LINES");
+
+	if (s != NULL) {
+		ws->ws_row = atoi(s);
+		s = getenv("COLUMNS");
+		if (s != NULL) {
+			ws->ws_col = atoi(s);
+			if (ws->ws_row && ws->ws_col)
+				return;
+		}
+	}
+#ifdef TIOCGWINSZ
+	if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
+	    ws->ws_row && ws->ws_col)
+		return;
+#endif
+	ws->ws_row = 25;
+	ws->ws_col = 80;
+}
+
 static void pretty_print_string_list(struct cmdnames *cmds, int longest)
 {
 	int cols = 1, rows;
@@ -114,6 +142,14 @@ static int is_executable(const char *name)
 	return st.st_mode & S_IXUSR;
 }
 
+static int has_extension(const char *filename, const char *ext)
+{
+	size_t len = strlen(filename);
+	size_t extlen = strlen(ext);
+
+	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
+}
+
 static void list_commands_in_dir(struct cmdnames *cmds,
 					 const char *path,
 					 const char *prefix)
@@ -121,8 +157,7 @@ static void list_commands_in_dir(struct cmdnames *cmds,
 	int prefix_len;
 	DIR *dir = opendir(path);
 	struct dirent *de;
-	struct strbuf buf = STRBUF_INIT;
-	int len;
+	char *buf = NULL;
 
 	if (!dir)
 		return;
@@ -130,8 +165,7 @@ static void list_commands_in_dir(struct cmdnames *cmds,
 		prefix = "perf-";
 	prefix_len = strlen(prefix);
 
-	strbuf_addf(&buf, "%s/", path);
-	len = buf.len;
+	astrcatf(&buf, "%s/", path);
 
 	while ((de = readdir(dir)) != NULL) {
 		int entlen;
@@ -139,9 +173,8 @@ static void list_commands_in_dir(struct cmdnames *cmds,
 		if (prefixcmp(de->d_name, prefix))
 			continue;
 
-		strbuf_setlen(&buf, len);
-		strbuf_addstr(&buf, de->d_name);
-		if (!is_executable(buf.buf))
+		astrcat(&buf, de->d_name);
+		if (!is_executable(buf))
 			continue;
 
 		entlen = strlen(de->d_name) - prefix_len;
@@ -151,7 +184,7 @@ static void list_commands_in_dir(struct cmdnames *cmds,
 		add_cmdname(cmds, de->d_name + prefix_len, entlen);
 	}
 	closedir(dir);
-	strbuf_release(&buf);
+	free(buf);
 }
 
 void load_command_list(const char *prefix,
@@ -159,7 +192,7 @@ void load_command_list(const char *prefix,
 		struct cmdnames *other_cmds)
 {
 	const char *env_path = getenv("PATH");
-	const char *exec_path = perf_exec_path();
+	char *exec_path = get_argv_exec_path();
 
 	if (exec_path) {
 		list_commands_in_dir(main_cmds, exec_path, prefix);
@@ -172,7 +205,7 @@ void load_command_list(const char *prefix,
 		char *paths, *path, *colon;
 		path = paths = strdup(env_path);
 		while (1) {
-			if ((colon = strchr(path, PATH_SEP)))
+			if ((colon = strchr(path, ':')))
 				*colon = 0;
 			if (!exec_path || strcmp(path, exec_path))
 				list_commands_in_dir(other_cmds, path, prefix);
@@ -187,6 +220,7 @@ void load_command_list(const char *prefix,
 		      sizeof(*other_cmds->names), cmdname_compare);
 		uniq(other_cmds);
 	}
+	free(exec_path);
 	exclude_cmds(other_cmds, main_cmds);
 }
 
@@ -203,13 +237,14 @@ void list_commands(const char *title, struct cmdnames *main_cmds,
 			longest = other_cmds->names[i]->len;
 
 	if (main_cmds->cnt) {
-		const char *exec_path = perf_exec_path();
+		char *exec_path = get_argv_exec_path();
 		printf("available %s in '%s'\n", title, exec_path);
 		printf("----------------");
 		mput_char('-', strlen(title) + strlen(exec_path));
 		putchar('\n');
 		pretty_print_string_list(main_cmds, longest);
 		putchar('\n');
+		free(exec_path);
 	}
 
 	if (other_cmds->cnt) {
@@ -231,109 +266,3 @@ int is_in_cmdlist(struct cmdnames *c, const char *s)
 			return 1;
 	return 0;
 }
-
-static int autocorrect;
-static struct cmdnames aliases;
-
-static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "help.autocorrect"))
-		autocorrect = perf_config_int(var,value);
-	/* Also use aliases for command lookup */
-	if (!prefixcmp(var, "alias."))
-		add_cmdname(&aliases, var + 6, strlen(var + 6));
-
-	return perf_default_config(var, value, cb);
-}
-
-static int levenshtein_compare(const void *p1, const void *p2)
-{
-	const struct cmdname *const *c1 = p1, *const *c2 = p2;
-	const char *s1 = (*c1)->name, *s2 = (*c2)->name;
-	int l1 = (*c1)->len;
-	int l2 = (*c2)->len;
-	return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
-}
-
-static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
-{
-	unsigned int i;
-
-	ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
-
-	for (i = 0; i < old->cnt; i++)
-		cmds->names[cmds->cnt++] = old->names[i];
-	zfree(&old->names);
-	old->cnt = 0;
-}
-
-const char *help_unknown_cmd(const char *cmd)
-{
-	unsigned int i, n = 0, best_similarity = 0;
-	struct cmdnames main_cmds, other_cmds;
-
-	memset(&main_cmds, 0, sizeof(main_cmds));
-	memset(&other_cmds, 0, sizeof(main_cmds));
-	memset(&aliases, 0, sizeof(aliases));
-
-	perf_config(perf_unknown_cmd_config, NULL);
-
-	load_command_list("perf-", &main_cmds, &other_cmds);
-
-	add_cmd_list(&main_cmds, &aliases);
-	add_cmd_list(&main_cmds, &other_cmds);
-	qsort(main_cmds.names, main_cmds.cnt,
-	      sizeof(main_cmds.names), cmdname_compare);
-	uniq(&main_cmds);
-
-	if (main_cmds.cnt) {
-		/* This reuses cmdname->len for similarity index */
-		for (i = 0; i < main_cmds.cnt; ++i)
-			main_cmds.names[i]->len =
-				levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
-
-		qsort(main_cmds.names, main_cmds.cnt,
-		      sizeof(*main_cmds.names), levenshtein_compare);
-
-		best_similarity = main_cmds.names[0]->len;
-		n = 1;
-		while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
-			++n;
-	}
-
-	if (autocorrect && n == 1) {
-		const char *assumed = main_cmds.names[0]->name;
-
-		main_cmds.names[0] = NULL;
-		clean_cmdnames(&main_cmds);
-		fprintf(stderr, "WARNING: You called a perf program named '%s', "
-			"which does not exist.\n"
-			"Continuing under the assumption that you meant '%s'\n",
-			cmd, assumed);
-		if (autocorrect > 0) {
-			fprintf(stderr, "in %0.1f seconds automatically...\n",
-				(float)autocorrect/10.0);
-			poll(NULL, 0, autocorrect * 100);
-		}
-		return assumed;
-	}
-
-	fprintf(stderr, "perf: '%s' is not a perf-command. See 'perf --help'.\n", cmd);
-
-	if (main_cmds.cnt && best_similarity < 6) {
-		fprintf(stderr, "\nDid you mean %s?\n",
-			n < 2 ? "this": "one of these");
-
-		for (i = 0; i < n; i++)
-			fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
-	}
-
-	exit(1);
-}
-
-int cmd_version(int argc __maybe_unused, const char **argv __maybe_unused,
-		const char *prefix __maybe_unused)
-{
-	printf("perf version %s\n", perf_version_string);
-	return 0;
-}
diff --git a/tools/perf/util/help.h b/tools/lib/subcmd/help.h
index 7f5c6dedd714..e145a020780c 100644
--- a/tools/perf/util/help.h
+++ b/tools/lib/subcmd/help.h
@@ -1,12 +1,14 @@
-#ifndef __PERF_HELP_H
-#define __PERF_HELP_H
+#ifndef __SUBCMD_HELP_H
+#define __SUBCMD_HELP_H
+
+#include <sys/types.h>
 
 struct cmdnames {
 	size_t alloc;
 	size_t cnt;
 	struct cmdname {
 		size_t len; /* also used for similarity index in help.c */
-		char name[FLEX_ARRAY];
+		char name[];
 	} **names;
 };
 
@@ -20,10 +22,13 @@ void load_command_list(const char *prefix,
 		struct cmdnames *main_cmds,
 		struct cmdnames *other_cmds);
 void add_cmdname(struct cmdnames *cmds, const char *name, size_t len);
+void clean_cmdnames(struct cmdnames *cmds);
+int cmdname_compare(const void *a, const void *b);
+void uniq(struct cmdnames *cmds);
 /* Here we require that excludes is a sorted list. */
 void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes);
 int is_in_cmdlist(struct cmdnames *c, const char *s);
 void list_commands(const char *title, struct cmdnames *main_cmds,
 		   struct cmdnames *other_cmds);
 
-#endif /* __PERF_HELP_H */
+#endif /* __SUBCMD_HELP_H */
diff --git a/tools/perf/util/pager.c b/tools/lib/subcmd/pager.c
index 53ef006a951c..d50f3b58606b 100644
--- a/tools/perf/util/pager.c
+++ b/tools/lib/subcmd/pager.c
@@ -1,6 +1,12 @@
-#include "cache.h"
+#include <sys/select.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include "pager.h"
 #include "run-command.h"
 #include "sigchain.h"
+#include "subcmd-config.h"
 
 /*
  * This is split up from the rest of git so that we can do
@@ -9,6 +15,11 @@
 
 static int spawned_pager;
 
+void pager_init(const char *pager_env)
+{
+	subcmd_config.pager_env = pager_env;
+}
+
 static void pager_preexec(void)
 {
 	/*
@@ -46,7 +57,7 @@ static void wait_for_pager_signal(int signo)
 
 void setup_pager(void)
 {
-	const char *pager = getenv("PERF_PAGER");
+	const char *pager = getenv(subcmd_config.pager_env);
 
 	if (!isatty(1))
 		return;
@@ -85,11 +96,5 @@ void setup_pager(void)
 
 int pager_in_use(void)
 {
-	const char *env;
-
-	if (spawned_pager)
-		return 1;
-
-	env = getenv("PERF_PAGER_IN_USE");
-	return env ? perf_config_bool("PERF_PAGER_IN_USE", env) : 0;
+	return spawned_pager;
 }
diff --git a/tools/lib/subcmd/pager.h b/tools/lib/subcmd/pager.h
new file mode 100644
index 000000000000..8b83714ecf73
--- /dev/null
+++ b/tools/lib/subcmd/pager.h
@@ -0,0 +1,9 @@
+#ifndef __SUBCMD_PAGER_H
+#define __SUBCMD_PAGER_H
+
+extern void pager_init(const char *pager_env);
+
+extern void setup_pager(void);
+extern int pager_in_use(void);
+
+#endif /* __SUBCMD_PAGER_H */
diff --git a/tools/perf/util/parse-options.c b/tools/lib/subcmd/parse-options.c
index 9fca09296eb3..981bb4481fd5 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/lib/subcmd/parse-options.c
@@ -1,37 +1,66 @@
-#include "util.h"
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <ctype.h>
+#include "subcmd-util.h"
 #include "parse-options.h"
-#include "cache.h"
-#include "header.h"
-#include <linux/string.h>
+#include "subcmd-config.h"
+#include "pager.h"
 
 #define OPT_SHORT 1
 #define OPT_UNSET 2
 
-static struct strbuf error_buf = STRBUF_INIT;
+char *error_buf;
 
 static int opterror(const struct option *opt, const char *reason, int flags)
 {
 	if (flags & OPT_SHORT)
-		return error("switch `%c' %s", opt->short_name, reason);
-	if (flags & OPT_UNSET)
-		return error("option `no-%s' %s", opt->long_name, reason);
-	return error("option `%s' %s", opt->long_name, reason);
+		fprintf(stderr, " Error: switch `%c' %s", opt->short_name, reason);
+	else if (flags & OPT_UNSET)
+		fprintf(stderr, " Error: option `no-%s' %s", opt->long_name, reason);
+	else
+		fprintf(stderr, " Error: option `%s' %s", opt->long_name, reason);
+
+	return -1;
+}
+
+static const char *skip_prefix(const char *str, const char *prefix)
+{
+	size_t len = strlen(prefix);
+	return strncmp(str, prefix, len) ? NULL : str + len;
+}
+
+static void optwarning(const struct option *opt, const char *reason, int flags)
+{
+	if (flags & OPT_SHORT)
+		fprintf(stderr, " Warning: switch `%c' %s", opt->short_name, reason);
+	else if (flags & OPT_UNSET)
+		fprintf(stderr, " Warning: option `no-%s' %s", opt->long_name, reason);
+	else
+		fprintf(stderr, " Warning: option `%s' %s", opt->long_name, reason);
 }
 
 static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
 		   int flags, const char **arg)
 {
+	const char *res;
+
 	if (p->opt) {
-		*arg = p->opt;
+		res = p->opt;
 		p->opt = NULL;
 	} else if ((opt->flags & PARSE_OPT_LASTARG_DEFAULT) && (p->argc == 1 ||
 		    **(p->argv + 1) == '-')) {
-		*arg = (const char *)opt->defval;
+		res = (const char *)opt->defval;
 	} else if (p->argc > 1) {
 		p->argc--;
-		*arg = *++p->argv;
+		res = *++p->argv;
 	} else
 		return opterror(opt, "requires a value", flags);
+	if (arg)
+		*arg = res;
 	return 0;
 }
 
@@ -55,11 +84,11 @@ static int get_value(struct parse_opt_ctx_t *p,
 
 			if (((flags & OPT_SHORT) && p->excl_opt->short_name) ||
 			    p->excl_opt->long_name == NULL) {
-				scnprintf(msg, sizeof(msg), "cannot be used with switch `%c'",
-					  p->excl_opt->short_name);
+				snprintf(msg, sizeof(msg), "cannot be used with switch `%c'",
+					 p->excl_opt->short_name);
 			} else {
-				scnprintf(msg, sizeof(msg), "cannot be used with %s",
-					  p->excl_opt->long_name);
+				snprintf(msg, sizeof(msg), "cannot be used with %s",
+					 p->excl_opt->long_name);
 			}
 			opterror(opt, msg, flags);
 			return -3;
@@ -91,6 +120,64 @@ static int get_value(struct parse_opt_ctx_t *p,
 		}
 	}
 
+	if (opt->flags & PARSE_OPT_NOBUILD) {
+		char reason[128];
+		bool noarg = false;
+
+		err = snprintf(reason, sizeof(reason),
+				opt->flags & PARSE_OPT_CANSKIP ?
+					"is being ignored because %s " :
+					"is not available because %s",
+				opt->build_opt);
+		reason[sizeof(reason) - 1] = '\0';
+
+		if (err < 0)
+			strncpy(reason, opt->flags & PARSE_OPT_CANSKIP ?
+					"is being ignored" :
+					"is not available",
+					sizeof(reason));
+
+		if (!(opt->flags & PARSE_OPT_CANSKIP))
+			return opterror(opt, reason, flags);
+
+		err = 0;
+		if (unset)
+			noarg = true;
+		if (opt->flags & PARSE_OPT_NOARG)
+			noarg = true;
+		if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
+			noarg = true;
+
+		switch (opt->type) {
+		case OPTION_BOOLEAN:
+		case OPTION_INCR:
+		case OPTION_BIT:
+		case OPTION_SET_UINT:
+		case OPTION_SET_PTR:
+		case OPTION_END:
+		case OPTION_ARGUMENT:
+		case OPTION_GROUP:
+			noarg = true;
+			break;
+		case OPTION_CALLBACK:
+		case OPTION_STRING:
+		case OPTION_INTEGER:
+		case OPTION_UINTEGER:
+		case OPTION_LONG:
+		case OPTION_U64:
+		default:
+			break;
+		}
+
+		if (!noarg)
+			err = get_arg(p, opt, flags, NULL);
+		if (err)
+			return err;
+
+		optwarning(opt, reason, flags);
+		return 0;
+	}
+
 	switch (opt->type) {
 	case OPTION_BIT:
 		if (unset)
@@ -327,14 +414,16 @@ match:
 		return get_value(p, options, flags);
 	}
 
-	if (ambiguous_option)
-		return error("Ambiguous option: %s "
-			"(could be --%s%s or --%s%s)",
-			arg,
-			(ambiguous_flags & OPT_UNSET) ?  "no-" : "",
-			ambiguous_option->long_name,
-			(abbrev_flags & OPT_UNSET) ?  "no-" : "",
-			abbrev_option->long_name);
+	if (ambiguous_option) {
+		 fprintf(stderr,
+			 " Error: Ambiguous option: %s (could be --%s%s or --%s%s)",
+			 arg,
+			 (ambiguous_flags & OPT_UNSET) ?  "no-" : "",
+			 ambiguous_option->long_name,
+			 (abbrev_flags & OPT_UNSET) ?  "no-" : "",
+			 abbrev_option->long_name);
+		 return -1;
+	}
 	if (abbrev_option)
 		return get_value(p, abbrev_option, abbrev_flags);
 	return -2;
@@ -346,7 +435,7 @@ static void check_typos(const char *arg, const struct option *options)
 		return;
 
 	if (!prefixcmp(arg, "no-")) {
-		error ("did you mean `--%s` (with two dashes ?)", arg);
+		fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
 		exit(129);
 	}
 
@@ -354,14 +443,14 @@ static void check_typos(const char *arg, const struct option *options)
 		if (!options->long_name)
 			continue;
 		if (!prefixcmp(options->long_name, arg)) {
-			error ("did you mean `--%s` (with two dashes ?)", arg);
+			fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
 			exit(129);
 		}
 	}
 }
 
-void parse_options_start(struct parse_opt_ctx_t *ctx,
-			 int argc, const char **argv, int flags)
+static void parse_options_start(struct parse_opt_ctx_t *ctx,
+				int argc, const char **argv, int flags)
 {
 	memset(ctx, 0, sizeof(*ctx));
 	ctx->argc = argc - 1;
@@ -378,9 +467,9 @@ static int usage_with_options_internal(const char * const *,
 				       const struct option *, int,
 				       struct parse_opt_ctx_t *);
 
-int parse_options_step(struct parse_opt_ctx_t *ctx,
-		       const struct option *options,
-		       const char * const usagestr[])
+static int parse_options_step(struct parse_opt_ctx_t *ctx,
+			      const struct option *options,
+			      const char * const usagestr[])
 {
 	int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
 	int excl_short_opt = 1;
@@ -489,7 +578,7 @@ exclusive:
 	return PARSE_OPT_HELP;
 }
 
-int parse_options_end(struct parse_opt_ctx_t *ctx)
+static int parse_options_end(struct parse_opt_ctx_t *ctx)
 {
 	memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
 	ctx->out[ctx->cpidx + ctx->argc] = NULL;
@@ -501,22 +590,20 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o
 {
 	struct parse_opt_ctx_t ctx;
 
-	perf_env__set_cmdline(&perf_env, argc, argv);
-
 	/* build usage string if it's not provided */
 	if (subcommands && !usagestr[0]) {
-		struct strbuf buf = STRBUF_INIT;
+		char *buf = NULL;
+
+		astrcatf(&buf, "%s %s [<options>] {", subcmd_config.exec_name, argv[0]);
 
-		strbuf_addf(&buf, "perf %s [<options>] {", argv[0]);
 		for (int i = 0; subcommands[i]; i++) {
 			if (i)
-				strbuf_addstr(&buf, "|");
-			strbuf_addstr(&buf, subcommands[i]);
+				astrcat(&buf, "|");
+			astrcat(&buf, subcommands[i]);
 		}
-		strbuf_addstr(&buf, "}");
+		astrcat(&buf, "}");
 
-		usagestr[0] = strdup(buf.buf);
-		strbuf_release(&buf);
+		usagestr[0] = buf;
 	}
 
 	parse_options_start(&ctx, argc, argv, flags);
@@ -541,13 +628,11 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o
 		putchar('\n');
 		exit(130);
 	default: /* PARSE_OPT_UNKNOWN */
-		if (ctx.argv[0][1] == '-') {
-			strbuf_addf(&error_buf, "unknown option `%s'",
-				    ctx.argv[0] + 2);
-		} else {
-			strbuf_addf(&error_buf, "unknown switch `%c'",
-				    *ctx.opt);
-		}
+		if (ctx.argv[0][1] == '-')
+			astrcatf(&error_buf, "unknown option `%s'",
+				 ctx.argv[0] + 2);
+		else
+			astrcatf(&error_buf, "unknown switch `%c'", *ctx.opt);
 		usage_with_options(usagestr, options);
 	}
 
@@ -647,6 +732,10 @@ static void print_option_help(const struct option *opts, int full)
 		pad = USAGE_OPTS_WIDTH;
 	}
 	fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
+	if (opts->flags & PARSE_OPT_NOBUILD)
+		fprintf(stderr, "%*s(not built-in because %s)\n",
+			USAGE_OPTS_WIDTH + USAGE_GAP, "",
+			opts->build_opt);
 }
 
 static int option__cmp(const void *va, const void *vb)
@@ -672,16 +761,18 @@ static int option__cmp(const void *va, const void *vb)
 
 static struct option *options__order(const struct option *opts)
 {
-	int nr_opts = 0;
+	int nr_opts = 0, len;
 	const struct option *o = opts;
 	struct option *ordered;
 
 	for (o = opts; o->type != OPTION_END; o++)
 		++nr_opts;
 
-	ordered = memdup(opts, sizeof(*o) * (nr_opts + 1));
-	if (ordered == NULL)
+	len = sizeof(*o) * (nr_opts + 1);
+	ordered = malloc(len);
+	if (!ordered)
 		goto out;
+	memcpy(ordered, opts, len);
 
 	qsort(ordered, nr_opts, sizeof(*o), option__cmp);
 out:
@@ -719,9 +810,9 @@ static bool option__in_argv(const struct option *opt, const struct parse_opt_ctx
 	return false;
 }
 
-int usage_with_options_internal(const char * const *usagestr,
-				const struct option *opts, int full,
-				struct parse_opt_ctx_t *ctx)
+static int usage_with_options_internal(const char * const *usagestr,
+				       const struct option *opts, int full,
+				       struct parse_opt_ctx_t *ctx)
 {
 	struct option *ordered;
 
@@ -730,9 +821,9 @@ int usage_with_options_internal(const char * const *usagestr,
 
 	setup_pager();
 
-	if (strbuf_avail(&error_buf)) {
-		fprintf(stderr, "  Error: %s\n", error_buf.buf);
-		strbuf_release(&error_buf);
+	if (error_buf) {
+		fprintf(stderr, "  Error: %s\n", error_buf);
+		zfree(&error_buf);
 	}
 
 	fprintf(stderr, "\n Usage: %s\n", *usagestr++);
@@ -768,7 +859,6 @@ int usage_with_options_internal(const char * const *usagestr,
 void usage_with_options(const char * const *usagestr,
 			const struct option *opts)
 {
-	exit_browser(false);
 	usage_with_options_internal(usagestr, opts, 0, NULL);
 	exit(129);
 }
@@ -777,13 +867,15 @@ void usage_with_options_msg(const char * const *usagestr,
 			    const struct option *opts, const char *fmt, ...)
 {
 	va_list ap;
-
-	exit_browser(false);
+	char *tmp = error_buf;
 
 	va_start(ap, fmt);
-	strbuf_addv(&error_buf, fmt, ap);
+	if (vasprintf(&error_buf, fmt, ap) == -1)
+		die("vasprintf failed");
 	va_end(ap);
 
+	free(tmp);
+
 	usage_with_options_internal(usagestr, opts, 0, NULL);
 	exit(129);
 }
@@ -853,15 +945,39 @@ int parse_opt_verbosity_cb(const struct option *opt,
 	return 0;
 }
 
-void set_option_flag(struct option *opts, int shortopt, const char *longopt,
-		     int flag)
+static struct option *
+find_option(struct option *opts, int shortopt, const char *longopt)
 {
 	for (; opts->type != OPTION_END; opts++) {
 		if ((shortopt && opts->short_name == shortopt) ||
 		    (opts->long_name && longopt &&
-		     !strcmp(opts->long_name, longopt))) {
-			opts->flags |= flag;
-			break;
-		}
+		     !strcmp(opts->long_name, longopt)))
+			return opts;
 	}
+	return NULL;
+}
+
+void set_option_flag(struct option *opts, int shortopt, const char *longopt,
+		     int flag)
+{
+	struct option *opt = find_option(opts, shortopt, longopt);
+
+	if (opt)
+		opt->flags |= flag;
+	return;
+}
+
+void set_option_nobuild(struct option *opts, int shortopt,
+			const char *longopt,
+			const char *build_opt,
+			bool can_skip)
+{
+	struct option *opt = find_option(opts, shortopt, longopt);
+
+	if (!opt)
+		return;
+
+	opt->flags |= PARSE_OPT_NOBUILD;
+	opt->flags |= can_skip ? PARSE_OPT_CANSKIP : 0;
+	opt->build_opt = build_opt;
 }
diff --git a/tools/perf/util/parse-options.h b/tools/lib/subcmd/parse-options.h
index a8e407bc251e..13a2cc1d6140 100644
--- a/tools/perf/util/parse-options.h
+++ b/tools/lib/subcmd/parse-options.h
@@ -1,8 +1,8 @@
-#ifndef __PERF_PARSE_OPTIONS_H
-#define __PERF_PARSE_OPTIONS_H
+#ifndef __SUBCMD_PARSE_OPTIONS_H
+#define __SUBCMD_PARSE_OPTIONS_H
 
-#include <linux/kernel.h>
 #include <stdbool.h>
+#include <stdint.h>
 
 enum parse_opt_type {
 	/* special types */
@@ -41,6 +41,8 @@ enum parse_opt_option_flags {
 	PARSE_OPT_DISABLED = 32,
 	PARSE_OPT_EXCLUSIVE = 64,
 	PARSE_OPT_NOEMPTY  = 128,
+	PARSE_OPT_NOBUILD  = 256,
+	PARSE_OPT_CANSKIP  = 512,
 };
 
 struct option;
@@ -96,6 +98,7 @@ struct option {
 	void *value;
 	const char *argh;
 	const char *help;
+	const char *build_opt;
 
 	int flags;
 	parse_opt_cb *callback;
@@ -149,6 +152,9 @@ struct option {
 /* parse_options() will filter out the processed options and leave the
  * non-option argments in argv[].
  * Returns the number of arguments left in argv[].
+ *
+ * NOTE: parse_options() and parse_options_subcommand() may call exit() in the
+ * case of an error (or for 'special' options like --list-cmds or --list-opts).
  */
 extern int parse_options(int argc, const char **argv,
                          const struct option *options,
@@ -195,15 +201,6 @@ extern int parse_options_usage(const char * const *usagestr,
 			       const char *optstr,
 			       bool short_opt);
 
-extern void parse_options_start(struct parse_opt_ctx_t *ctx,
-				int argc, const char **argv, int flags);
-
-extern int parse_options_step(struct parse_opt_ctx_t *ctx,
-			      const struct option *options,
-			      const char * const usagestr[]);
-
-extern int parse_options_end(struct parse_opt_ctx_t *ctx);
-
 
 /*----- some often used options -----*/
 extern int parse_opt_abbrev_cb(const struct option *, const char *, int);
@@ -226,4 +223,7 @@ extern int parse_opt_verbosity_cb(const struct option *, const char *, int);
 extern const char *parse_options_fix_filename(const char *prefix, const char *file);
 
 void set_option_flag(struct option *opts, int sopt, const char *lopt, int flag);
-#endif /* __PERF_PARSE_OPTIONS_H */
+void set_option_nobuild(struct option *opts, int shortopt, const char *longopt,
+			const char *build_opt, bool can_skip);
+
+#endif /* __SUBCMD_PARSE_OPTIONS_H */
diff --git a/tools/perf/util/run-command.c b/tools/lib/subcmd/run-command.c
index 34622b53e733..f4f6c9eb8e59 100644
--- a/tools/perf/util/run-command.c
+++ b/tools/lib/subcmd/run-command.c
@@ -1,7 +1,15 @@
-#include "cache.h"
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include "subcmd-util.h"
 #include "run-command.h"
-#include "exec_cmd.h"
-#include "debug.h"
+#include "exec-cmd.h"
+
+#define STRERR_BUFSIZE 128
 
 static inline void close_pair(int fd[2])
 {
@@ -112,8 +120,8 @@ int start_command(struct child_process *cmd)
 		}
 		if (cmd->preexec_cb)
 			cmd->preexec_cb();
-		if (cmd->perf_cmd) {
-			execv_perf_cmd(cmd->argv);
+		if (cmd->exec_cmd) {
+			execv_cmd(cmd->argv);
 		} else {
 			execvp(cmd->argv[0], (char *const*) cmd->argv);
 		}
@@ -164,8 +172,8 @@ static int wait_or_whine(pid_t pid)
 		if (waiting < 0) {
 			if (errno == EINTR)
 				continue;
-			error("waitpid failed (%s)",
-			      strerror_r(errno, sbuf, sizeof(sbuf)));
+			fprintf(stderr, " Error: waitpid failed (%s)",
+				strerror_r(errno, sbuf, sizeof(sbuf)));
 			return -ERR_RUN_COMMAND_WAITPID;
 		}
 		if (waiting != pid)
@@ -207,7 +215,7 @@ static void prepare_run_command_v_opt(struct child_process *cmd,
 	memset(cmd, 0, sizeof(*cmd));
 	cmd->argv = argv;
 	cmd->no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0;
-	cmd->perf_cmd = opt & RUN_PERF_CMD ? 1 : 0;
+	cmd->exec_cmd = opt & RUN_EXEC_CMD ? 1 : 0;
 	cmd->stdout_to_stderr = opt & RUN_COMMAND_STDOUT_TO_STDERR ? 1 : 0;
 }
 
diff --git a/tools/perf/util/run-command.h b/tools/lib/subcmd/run-command.h
index 1ef264d5069c..fe2befea1e73 100644
--- a/tools/perf/util/run-command.h
+++ b/tools/lib/subcmd/run-command.h
@@ -1,5 +1,7 @@
-#ifndef __PERF_RUN_COMMAND_H
-#define __PERF_RUN_COMMAND_H
+#ifndef __SUBCMD_RUN_COMMAND_H
+#define __SUBCMD_RUN_COMMAND_H
+
+#include <unistd.h>
 
 enum {
 	ERR_RUN_COMMAND_FORK = 10000,
@@ -41,7 +43,7 @@ struct child_process {
 	unsigned no_stdin:1;
 	unsigned no_stdout:1;
 	unsigned no_stderr:1;
-	unsigned perf_cmd:1; /* if this is to be perf sub-command */
+	unsigned exec_cmd:1; /* if this is to be external sub-command */
 	unsigned stdout_to_stderr:1;
 	void (*preexec_cb)(void);
 };
@@ -51,8 +53,8 @@ int finish_command(struct child_process *);
 int run_command(struct child_process *);
 
 #define RUN_COMMAND_NO_STDIN 1
-#define RUN_PERF_CMD	     2	/*If this is to be perf sub-command */
+#define RUN_EXEC_CMD	     2	/*If this is to be external sub-command */
 #define RUN_COMMAND_STDOUT_TO_STDERR 4
 int run_command_v_opt(const char **argv, int opt);
 
-#endif /* __PERF_RUN_COMMAND_H */
+#endif /* __SUBCMD_RUN_COMMAND_H */
diff --git a/tools/perf/util/sigchain.c b/tools/lib/subcmd/sigchain.c
index ba785e9b1841..3537c348a18e 100644
--- a/tools/perf/util/sigchain.c
+++ b/tools/lib/subcmd/sigchain.c
@@ -1,5 +1,6 @@
+#include <signal.h>
+#include "subcmd-util.h"
 #include "sigchain.h"
-#include "cache.h"
 
 #define SIGCHAIN_MAX_SIGNALS 32
 
diff --git a/tools/perf/util/sigchain.h b/tools/lib/subcmd/sigchain.h
index 959d64eb5557..0c919f2874ca 100644
--- a/tools/perf/util/sigchain.h
+++ b/tools/lib/subcmd/sigchain.h
@@ -1,5 +1,5 @@
-#ifndef __PERF_SIGCHAIN_H
-#define __PERF_SIGCHAIN_H
+#ifndef __SUBCMD_SIGCHAIN_H
+#define __SUBCMD_SIGCHAIN_H
 
 typedef void (*sigchain_fun)(int);
 
@@ -7,4 +7,4 @@ int sigchain_pop(int sig);
 
 void sigchain_push_common(sigchain_fun f);
 
-#endif /* __PERF_SIGCHAIN_H */
+#endif /* __SUBCMD_SIGCHAIN_H */
diff --git a/tools/lib/subcmd/subcmd-config.c b/tools/lib/subcmd/subcmd-config.c
new file mode 100644
index 000000000000..d017c728bd1b
--- /dev/null
+++ b/tools/lib/subcmd/subcmd-config.c
@@ -0,0 +1,11 @@
+#include "subcmd-config.h"
+
+#define UNDEFINED "SUBCMD_HAS_NOT_BEEN_INITIALIZED"
+
+struct subcmd_config subcmd_config = {
+	.exec_name	= UNDEFINED,
+	.prefix		= UNDEFINED,
+	.exec_path	= UNDEFINED,
+	.exec_path_env	= UNDEFINED,
+	.pager_env	= UNDEFINED,
+};
diff --git a/tools/lib/subcmd/subcmd-config.h b/tools/lib/subcmd/subcmd-config.h
new file mode 100644
index 000000000000..cc8514030b5c
--- /dev/null
+++ b/tools/lib/subcmd/subcmd-config.h
@@ -0,0 +1,14 @@
+#ifndef __PERF_SUBCMD_CONFIG_H
+#define __PERF_SUBCMD_CONFIG_H
+
+struct subcmd_config {
+	const char *exec_name;
+	const char *prefix;
+	const char *exec_path;
+	const char *exec_path_env;
+	const char *pager_env;
+};
+
+extern struct subcmd_config subcmd_config;
+
+#endif /* __PERF_SUBCMD_CONFIG_H */
diff --git a/tools/lib/subcmd/subcmd-util.h b/tools/lib/subcmd/subcmd-util.h
new file mode 100644
index 000000000000..fc2e45d8aaf1
--- /dev/null
+++ b/tools/lib/subcmd/subcmd-util.h
@@ -0,0 +1,91 @@
+#ifndef __SUBCMD_UTIL_H
+#define __SUBCMD_UTIL_H
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define NORETURN __attribute__((__noreturn__))
+
+static inline void report(const char *prefix, const char *err, va_list params)
+{
+	char msg[1024];
+	vsnprintf(msg, sizeof(msg), err, params);
+	fprintf(stderr, " %s%s\n", prefix, msg);
+}
+
+static NORETURN inline void die(const char *err, ...)
+{
+	va_list params;
+
+	va_start(params, err);
+	report(" Fatal: ", err, params);
+	exit(128);
+	va_end(params);
+}
+
+#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
+
+#define alloc_nr(x) (((x)+16)*3/2)
+
+/*
+ * Realloc the buffer pointed at by variable 'x' so that it can hold
+ * at least 'nr' entries; the number of entries currently allocated
+ * is 'alloc', using the standard growing factor alloc_nr() macro.
+ *
+ * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
+ */
+#define ALLOC_GROW(x, nr, alloc) \
+	do { \
+		if ((nr) > alloc) { \
+			if (alloc_nr(alloc) < (nr)) \
+				alloc = (nr); \
+			else \
+				alloc = alloc_nr(alloc); \
+			x = xrealloc((x), alloc * sizeof(*(x))); \
+		} \
+	} while(0)
+
+static inline void *xrealloc(void *ptr, size_t size)
+{
+	void *ret = realloc(ptr, size);
+	if (!ret && !size)
+		ret = realloc(ptr, 1);
+	if (!ret) {
+		ret = realloc(ptr, size);
+		if (!ret && !size)
+			ret = realloc(ptr, 1);
+		if (!ret)
+			die("Out of memory, realloc failed");
+	}
+	return ret;
+}
+
+#define astrcatf(out, fmt, ...)						\
+({									\
+	char *tmp = *(out);						\
+	if (asprintf((out), "%s" fmt, tmp ?: "", ## __VA_ARGS__) == -1)	\
+		die("asprintf failed");					\
+	free(tmp);							\
+})
+
+static inline void astrcat(char **out, const char *add)
+{
+	char *tmp = *out;
+
+	if (asprintf(out, "%s%s", tmp ?: "", add) == -1)
+		die("asprintf failed");
+
+	free(tmp);
+}
+
+static inline int prefixcmp(const char *str, const char *prefix)
+{
+	for (; ; str++, prefix++)
+		if (!*prefix)
+			return 0;
+		else if (*str != *prefix)
+			return (unsigned char)*prefix - (unsigned char)*str;
+}
+
+#endif /* __SUBCMD_UTIL_H */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 2a912df6771b..ea69ce35e902 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4735,73 +4735,80 @@ static int is_printable_array(char *p, unsigned int len)
 	return 1;
 }
 
-static void print_event_fields(struct trace_seq *s, void *data,
-			       int size __maybe_unused,
-			       struct event_format *event)
+void pevent_print_field(struct trace_seq *s, void *data,
+			struct format_field *field)
 {
-	struct format_field *field;
 	unsigned long long val;
 	unsigned int offset, len, i;
-
-	field = event->format.fields;
-	while (field) {
-		trace_seq_printf(s, " %s=", field->name);
-		if (field->flags & FIELD_IS_ARRAY) {
-			offset = field->offset;
-			len = field->size;
-			if (field->flags & FIELD_IS_DYNAMIC) {
-				val = pevent_read_number(event->pevent, data + offset, len);
-				offset = val;
-				len = offset >> 16;
-				offset &= 0xffff;
-			}
-			if (field->flags & FIELD_IS_STRING &&
-			    is_printable_array(data + offset, len)) {
-				trace_seq_printf(s, "%s", (char *)data + offset);
-			} else {
-				trace_seq_puts(s, "ARRAY[");
-				for (i = 0; i < len; i++) {
-					if (i)
-						trace_seq_puts(s, ", ");
-					trace_seq_printf(s, "%02x",
-							 *((unsigned char *)data + offset + i));
-				}
-				trace_seq_putc(s, ']');
-				field->flags &= ~FIELD_IS_STRING;
-			}
+	struct pevent *pevent = field->event->pevent;
+
+	if (field->flags & FIELD_IS_ARRAY) {
+		offset = field->offset;
+		len = field->size;
+		if (field->flags & FIELD_IS_DYNAMIC) {
+			val = pevent_read_number(pevent, data + offset, len);
+			offset = val;
+			len = offset >> 16;
+			offset &= 0xffff;
+		}
+		if (field->flags & FIELD_IS_STRING &&
+		    is_printable_array(data + offset, len)) {
+			trace_seq_printf(s, "%s", (char *)data + offset);
 		} else {
-			val = pevent_read_number(event->pevent, data + field->offset,
-						 field->size);
-			if (field->flags & FIELD_IS_POINTER) {
-				trace_seq_printf(s, "0x%llx", val);
-			} else if (field->flags & FIELD_IS_SIGNED) {
-				switch (field->size) {
-				case 4:
-					/*
-					 * If field is long then print it in hex.
-					 * A long usually stores pointers.
-					 */
-					if (field->flags & FIELD_IS_LONG)
-						trace_seq_printf(s, "0x%x", (int)val);
-					else
-						trace_seq_printf(s, "%d", (int)val);
-					break;
-				case 2:
-					trace_seq_printf(s, "%2d", (short)val);
-					break;
-				case 1:
-					trace_seq_printf(s, "%1d", (char)val);
-					break;
-				default:
-					trace_seq_printf(s, "%lld", val);
-				}
-			} else {
+			trace_seq_puts(s, "ARRAY[");
+			for (i = 0; i < len; i++) {
+				if (i)
+					trace_seq_puts(s, ", ");
+				trace_seq_printf(s, "%02x",
+						 *((unsigned char *)data + offset + i));
+			}
+			trace_seq_putc(s, ']');
+			field->flags &= ~FIELD_IS_STRING;
+		}
+	} else {
+		val = pevent_read_number(pevent, data + field->offset,
+					 field->size);
+		if (field->flags & FIELD_IS_POINTER) {
+			trace_seq_printf(s, "0x%llx", val);
+		} else if (field->flags & FIELD_IS_SIGNED) {
+			switch (field->size) {
+			case 4:
+				/*
+				 * If field is long then print it in hex.
+				 * A long usually stores pointers.
+				 */
 				if (field->flags & FIELD_IS_LONG)
-					trace_seq_printf(s, "0x%llx", val);
+					trace_seq_printf(s, "0x%x", (int)val);
 				else
-					trace_seq_printf(s, "%llu", val);
+					trace_seq_printf(s, "%d", (int)val);
+				break;
+			case 2:
+				trace_seq_printf(s, "%2d", (short)val);
+				break;
+			case 1:
+				trace_seq_printf(s, "%1d", (char)val);
+				break;
+			default:
+				trace_seq_printf(s, "%lld", val);
 			}
+		} else {
+			if (field->flags & FIELD_IS_LONG)
+				trace_seq_printf(s, "0x%llx", val);
+			else
+				trace_seq_printf(s, "%llu", val);
 		}
+	}
+}
+
+void pevent_print_fields(struct trace_seq *s, void *data,
+			 int size __maybe_unused, struct event_format *event)
+{
+	struct format_field *field;
+
+	field = event->format.fields;
+	while (field) {
+		trace_seq_printf(s, " %s=", field->name);
+		pevent_print_field(s, data, field);
 		field = field->next;
 	}
 }
@@ -4827,7 +4834,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 
 	if (event->flags & EVENT_FL_FAILED) {
 		trace_seq_printf(s, "[FAILED TO PARSE]");
-		print_event_fields(s, data, size, event);
+		pevent_print_fields(s, data, size, event);
 		return;
 	}
 
@@ -4968,13 +4975,12 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 				    sizeof(long) != 8) {
 					char *p;
 
-					ls = 2;
 					/* make %l into %ll */
-					p = strchr(format, 'l');
-					if (p)
+					if (ls == 1 && (p = strchr(format, 'l')))
 						memmove(p+1, p, strlen(p)+1);
 					else if (strcmp(format, "%p") == 0)
 						strcpy(format, "0x%llx");
+					ls = 2;
 				}
 				switch (ls) {
 				case -2:
@@ -5302,7 +5308,7 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event,
 	int print_pretty = 1;
 
 	if (event->pevent->print_raw || (event->flags & EVENT_FL_PRINTRAW))
-		print_event_fields(s, record->data, record->size, event);
+		pevent_print_fields(s, record->data, record->size, event);
 	else {
 
 		if (event->handler && !(event->flags & EVENT_FL_NOHANDLE))
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 6fc83c7edbe9..706d9bc24066 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -705,6 +705,10 @@ struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *com
 					  struct cmdline *next);
 int pevent_cmdline_pid(struct pevent *pevent, struct cmdline *cmdline);
 
+void pevent_print_field(struct trace_seq *s, void *data,
+			struct format_field *field);
+void pevent_print_fields(struct trace_seq *s, void *data,
+			 int size __maybe_unused, struct event_format *event);
 void pevent_event_info(struct trace_seq *s, struct event_format *event,
 		       struct pevent_record *record);
 int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
diff --git a/tools/lib/util/find_next_bit.c b/tools/lib/util/find_next_bit.c
deleted file mode 100644
index 41b44f65a79e..000000000000
--- a/tools/lib/util/find_next_bit.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/* find_next_bit.c: fallback find next bit implementation
- *
- * Copied from lib/find_next_bit.c to tools/lib/next_bit.c
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <asm/byteorder.h>
-
-#define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
-
-#ifndef find_next_bit
-/*
- * Find the next set bit in a memory region.
- */
-unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
-			    unsigned long offset)
-{
-	const unsigned long *p = addr + BITOP_WORD(offset);
-	unsigned long result = offset & ~(BITS_PER_LONG-1);
-	unsigned long tmp;
-
-	if (offset >= size)
-		return size;
-	size -= result;
-	offset %= BITS_PER_LONG;
-	if (offset) {
-		tmp = *(p++);
-		tmp &= (~0UL << offset);
-		if (size < BITS_PER_LONG)
-			goto found_first;
-		if (tmp)
-			goto found_middle;
-		size -= BITS_PER_LONG;
-		result += BITS_PER_LONG;
-	}
-	while (size & ~(BITS_PER_LONG-1)) {
-		if ((tmp = *(p++)))
-			goto found_middle;
-		result += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-	}
-	if (!size)
-		return result;
-	tmp = *p;
-
-found_first:
-	tmp &= (~0UL >> (BITS_PER_LONG - size));
-	if (tmp == 0UL)		/* Are any bits set? */
-		return result + size;	/* Nope. */
-found_middle:
-	return result + __ffs(tmp);
-}
-#endif
-
-#ifndef find_first_bit
-/*
- * Find the first set bit in a memory region.
- */
-unsigned long find_first_bit(const unsigned long *addr, unsigned long size)
-{
-	const unsigned long *p = addr;
-	unsigned long result = 0;
-	unsigned long tmp;
-
-	while (size & ~(BITS_PER_LONG-1)) {
-		if ((tmp = *(p++)))
-			goto found;
-		result += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-	}
-	if (!size)
-		return result;
-
-	tmp = (*p) & (~0UL >> (BITS_PER_LONG - size));
-	if (tmp == 0UL)		/* Are any bits set? */
-		return result + size;	/* Nope. */
-found:
-	return result + __ffs(tmp);
-}
-#endif
diff --git a/tools/perf/Build b/tools/perf/Build
index 72237455b400..6b67e6f4179f 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -1,5 +1,6 @@
 perf-y += builtin-bench.o
 perf-y += builtin-annotate.o
+perf-y += builtin-config.o
 perf-y += builtin-diff.o
 perf-y += builtin-evlist.o
 perf-y += builtin-help.o
@@ -19,6 +20,7 @@ perf-y += builtin-kvm.o
 perf-y += builtin-inject.o
 perf-y += builtin-mem.o
 perf-y += builtin-data.o
+perf-y += builtin-version.o
 
 perf-$(CONFIG_AUDIT) += builtin-trace.o
 perf-$(CONFIG_LIBELF) += builtin-probe.o
@@ -34,8 +36,12 @@ paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
 
 CFLAGS_builtin-help.o      += $(paths)
 CFLAGS_builtin-timechart.o += $(paths)
-CFLAGS_perf.o              += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))" -include $(OUTPUT)PERF-VERSION-FILE
+CFLAGS_perf.o              += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))"	\
+			      -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))"	\
+			      -DPREFIX="BUILD_STR($(prefix_SQ))"		\
+			      -include $(OUTPUT)PERF-VERSION-FILE
 CFLAGS_builtin-trace.o	   += -DSTRACE_GROUPS_DIR="BUILD_STR($(STRACE_GROUPS_DIR_SQ))"
+CFLAGS_builtin-report.o	   += -DTIPDIR="BUILD_STR($(tipdir_SQ))"
 
 libperf-y += util/
 libperf-y += arch/
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
new file mode 100644
index 000000000000..b9ca1e304158
--- /dev/null
+++ b/tools/perf/Documentation/perf-config.txt
@@ -0,0 +1,103 @@
+perf-config(1)
+==============
+
+NAME
+----
+perf-config - Get and set variables in a configuration file.
+
+SYNOPSIS
+--------
+[verse]
+'perf config' -l | --list
+
+DESCRIPTION
+-----------
+You can manage variables in a configuration file with this command.
+
+OPTIONS
+-------
+
+-l::
+--list::
+	Show current config variables, name and value, for all sections.
+
+CONFIGURATION FILE
+------------------
+
+The perf configuration file contains many variables to change various
+aspects of each of its tools, including output, disk usage, etc.
+The '$HOME/.perfconfig' file is used to store a per-user configuration.
+The file '$(sysconfdir)/perfconfig' can be used to
+store a system-wide default configuration.
+
+Syntax
+~~~~~~
+
+The file consist of sections. A section starts with its name
+surrounded by square brackets and continues till the next section
+begins. Each variable must be in a section, and have the form
+'name = value', for example:
+
+	[section]
+		name1 = value1
+		name2 = value2
+
+Section names are case sensitive and can contain any characters except
+newline (double quote `"` and backslash have to be escaped as `\"` and `\\`,
+respectively). Section headers can't span multiple lines.
+
+Example
+~~~~~~~
+
+Given a $HOME/.perfconfig like this:
+
+#
+# This is the config file, and
+# a '#' and ';' character indicates a comment
+#
+
+	[colors]
+		# Color variables
+		top = red, default
+		medium = green, default
+		normal = lightgray, default
+		selected = white, lightgray
+		code = blue, default
+		addr = magenta, default
+		root = white, blue
+
+	[tui]
+		# Defaults if linked with libslang
+		report = on
+		annotate = on
+		top = on
+
+	[buildid]
+		# Default, disable using /dev/null
+		dir = ~/.debug
+
+	[annotate]
+		# Defaults
+		hide_src_code = false
+		use_offset = true
+		jump_arrows = true
+		show_nr_jumps = false
+
+	[help]
+		# Format can be man, info, web or html
+		format = man
+		autocorrect = 0
+
+	[ui]
+		show-headers = true
+
+	[call-graph]
+		# fp (framepointer), dwarf
+		record-mode = fp
+		print-type = graph
+		order = caller
+		sort-key = function
+
+SEE ALSO
+--------
+linkperf:perf[1]
diff --git a/tools/perf/Documentation/perf-evlist.txt b/tools/perf/Documentation/perf-evlist.txt
index 1ceb3700ffbb..6f7200fb85cf 100644
--- a/tools/perf/Documentation/perf-evlist.txt
+++ b/tools/perf/Documentation/perf-evlist.txt
@@ -32,6 +32,9 @@ OPTIONS
 --group::
 	Show event group information.
 
+--trace-fields::
+	Show tracepoint field names.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-list[1],
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e630a7d2c348..3a1a32f5479f 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -207,11 +207,23 @@ comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-
 In per-thread mode with inheritance mode on (default), samples are captured only when
 the thread executes on the designated CPUs. Default is to monitor all CPUs.
 
+-B::
+--no-buildid::
+Do not save the build ids of binaries in the perf.data files. This skips
+post processing after recording, which sometimes makes the final step in
+the recording process to take a long time, as it needs to process all
+events looking for mmap records. The downside is that it can misresolve
+symbols if the workload binaries used when recording get locally rebuilt
+or upgraded, because the only key available in this case is the
+pathname. You can also set the "record.build-id" config variable to
+'skip to have this behaviour permanently.
+
 -N::
 --no-buildid-cache::
 Do not update the buildid cache. This saves some overhead in situations
 where the information in the perf.data file (which includes buildids)
-is sufficient.
+is sufficient.  You can also set the "record.build-id" config variable to
+'no-cache' to have the same effect.
 
 -G name,...::
 --cgroup name,...::
@@ -314,11 +326,17 @@ This option sets the time out limit. The default value is 500 ms.
 Record context switch events i.e. events of type PERF_RECORD_SWITCH or
 PERF_RECORD_SWITCH_CPU_WIDE.
 
---clang-path::
+--clang-path=PATH::
 Path to clang binary to use for compiling BPF scriptlets.
+(enabled when BPF support is on)
 
---clang-opt::
+--clang-opt=OPTIONS::
 Options passed to clang when compiling BPF scriptlets.
+(enabled when BPF support is on)
+
+--vmlinux=PATH::
+Specify vmlinux path which has debuginfo.
+(enabled when BPF prologue is on)
 
 SEE ALSO
 --------
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 5ce8da1e1256..8a301f6afb37 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -117,6 +117,30 @@ OPTIONS
 	And default sort keys are changed to comm, dso_from, symbol_from, dso_to
 	and symbol_to, see '--branch-stack'.
 
+	If the data file has tracepoint event(s), following (dynamic) sort keys
+	are also available:
+	trace, trace_fields, [<event>.]<field>[/raw]
+
+	- trace: pretty printed trace output in a single column
+	- trace_fields: fields in tracepoints in separate columns
+	- <field name>: optional event and field name for a specific field
+
+	The last form consists of event and field names.  If event name is
+	omitted, it searches all events for matching field name.  The matched
+	field will be shown only for the event has the field.  The event name
+	supports substring match so user doesn't need to specify full subsystem
+	and event name everytime.  For example, 'sched:sched_switch' event can
+	be shortened to 'switch' as long as it's not ambiguous.  Also event can
+	be specified by its index (starting from 1) preceded by the '%'.
+	So '%1' is the first event, '%2' is the second, and so on.
+
+	The field name can have '/raw' suffix which disables pretty printing
+	and shows raw field value like hex numbers.  The --raw-trace option
+	has the same effect for all dynamic sort keys.
+
+	The default sort keys are changed to 'trace' if all events in the data
+	file are tracepoint.
+
 -F::
 --fields=::
 	Specify output field - multiple keys can be specified in CSV format.
@@ -170,17 +194,18 @@ OPTIONS
         Dump raw trace in ASCII.
 
 -g::
---call-graph=<print_type,threshold[,print_limit],order,sort_key,branch>::
+--call-graph=<print_type,threshold[,print_limit],order,sort_key[,branch],value>::
         Display call chains using type, min percent threshold, print limit,
-	call order, sort key and branch.  Note that ordering of parameters is not
-	fixed so any parement can be given in an arbitraty order.  One exception
-	is the print_limit which should be preceded by threshold.
+	call order, sort key, optional branch and value.  Note that ordering of
+	parameters is not fixed so any parement can be given in an arbitraty order.
+	One exception is the print_limit which should be preceded by threshold.
 
 	print_type can be either:
 	- flat: single column, linear exposure of call chains.
 	- graph: use a graph tree, displaying absolute overhead rates. (default)
 	- fractal: like graph, but displays relative rates. Each branch of
 		 the tree is considered as a new profiled object.
+	- folded: call chains are displayed in a line, separated by semicolons
 	- none: disable call chain display.
 
 	threshold is a percentage value which specifies a minimum percent to be
@@ -204,6 +229,11 @@ OPTIONS
 	- branch: include last branch information in callgraph when available.
 	          Usually more convenient to use --branch-history for this.
 
+	value can be:
+	- percent: diplay overhead percent (default)
+	- period: display event period
+	- count: display event count
+
 --children::
 	Accumulate callchain of children to parent entry so that then can
 	show up in the output.  The output will have a new "Children" column
@@ -365,6 +395,9 @@ include::itrace.txt[]
 --socket-filter::
 	Only report the samples on the processor socket that match with this filter
 
+--raw-trace::
+	When displaying traceevent output, do not use print fmt or plugins.
+
 include::callchain-overhead-calculation.txt[]
 
 SEE ALSO
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 4e074a660826..52ef7a9d50aa 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -10,6 +10,8 @@ SYNOPSIS
 [verse]
 'perf stat' [-e <EVENT> | --event=EVENT] [-a] <command>
 'perf stat' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
+'perf stat' [-e <EVENT> | --event=EVENT] [-a] record [-o file] -- <command> [<options>]
+'perf stat' report [-i file]
 
 DESCRIPTION
 -----------
@@ -22,6 +24,11 @@ OPTIONS
 <command>...::
 	Any command you can specify in a shell.
 
+record::
+	See STAT RECORD.
+
+report::
+	See STAT REPORT.
 
 -e::
 --event=::
@@ -159,6 +166,33 @@ filter out the startup phase of the program, which is often very different.
 
 Print statistics of transactional execution if supported.
 
+STAT RECORD
+-----------
+Stores stat data into perf data file.
+
+-o file::
+--output file::
+Output file name.
+
+STAT REPORT
+-----------
+Reads and reports stat data from perf data file.
+
+-i file::
+--input file::
+Input file name.
+
+--per-socket::
+Aggregate counts per processor socket for system-wide mode measurements.
+
+--per-core::
+Aggregate counts per physical processor for system-wide mode measurements.
+
+-A::
+--no-aggr::
+Do not aggregate counts across all monitored CPUs.
+
+
 EXAMPLES
 --------
 
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 556cec09bf50..b0e60e17db38 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -230,6 +230,9 @@ Default is to monitor all CPUS.
 	The various filters must be specified as a comma separated list: --branch-filter any_ret,u,k
 	Note that this feature may not be available on all processors.
 
+--raw-trace::
+	When displaying traceevent output, do not use print fmt or plugins.
+
 INTERACTIVE PROMPTING KEYS
 --------------------------
 
diff --git a/tools/perf/Documentation/tips.txt b/tools/perf/Documentation/tips.txt
new file mode 100644
index 000000000000..a1c10e360db5
--- /dev/null
+++ b/tools/perf/Documentation/tips.txt
@@ -0,0 +1,14 @@
+For a higher level overview, try: perf report --sort comm,dso
+Sample related events with: perf record -e '{cycles,instructions}:S'
+Compare performance results with: perf diff [<old file> <new file>]
+Boolean options have negative forms, e.g.: perf report --no-children
+Customize output of perf script with: perf script -F event,ip,sym
+Generate a script for your data: perf script -g <lang>
+Save output of perf stat using: perf stat record <target workload>
+Create an archive with symtabs to analyse on other machine: perf archive
+Search options using a keyword: perf report -h <keyword>
+Use parent filter to see specific call path: perf report -p <regex>
+List events using substring match: perf list <keyword>
+To see list of saved events and attributes: perf evlist -v
+Use --symfs <dir> if your symbol files are in non-standard locations
+To see callchains in a more compact form: perf report -g folded
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 39c38cb45b00..ddf922f93aa1 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -1,6 +1,7 @@
 tools/perf
 tools/arch/alpha/include/asm/barrier.h
 tools/arch/arm/include/asm/barrier.h
+tools/arch/arm64/include/asm/barrier.h
 tools/arch/ia64/include/asm/barrier.h
 tools/arch/mips/include/asm/barrier.h
 tools/arch/powerpc/include/asm/barrier.h
@@ -20,14 +21,17 @@ tools/lib/traceevent
 tools/lib/bpf
 tools/lib/api
 tools/lib/bpf
+tools/lib/subcmd
 tools/lib/hweight.c
 tools/lib/rbtree.c
+tools/lib/string.c
 tools/lib/symbol/kallsyms.c
 tools/lib/symbol/kallsyms.h
-tools/lib/util/find_next_bit.c
+tools/lib/find_bit.c
 tools/include/asm/atomic.h
 tools/include/asm/barrier.h
 tools/include/asm/bug.h
+tools/include/asm-generic/atomic-gcc.h
 tools/include/asm-generic/barrier.h
 tools/include/asm-generic/bitops/arch_hweight.h
 tools/include/asm-generic/bitops/atomic.h
@@ -50,6 +54,7 @@ tools/include/linux/log2.h
 tools/include/linux/poison.h
 tools/include/linux/rbtree.h
 tools/include/linux/rbtree_augmented.h
+tools/include/linux/string.h
 tools/include/linux/types.h
 tools/include/linux/err.h
 include/asm-generic/bitops/arch_hweight.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 0d19d5447d6c..0a22407e1d7d 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -145,9 +145,10 @@ BISON   = bison
 STRIP   = strip
 AWK     = awk
 
-LIB_DIR          = $(srctree)/tools/lib/api/
+LIB_DIR		= $(srctree)/tools/lib/api/
 TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
-BPF_DIR = $(srctree)/tools/lib/bpf/
+BPF_DIR		= $(srctree)/tools/lib/bpf/
+SUBCMD_DIR	= $(srctree)/tools/lib/subcmd/
 
 # include config/Makefile by default and rule out
 # non-config cases
@@ -184,15 +185,17 @@ strip-libs = $(filter-out -l%,$(1))
 ifneq ($(OUTPUT),)
   TE_PATH=$(OUTPUT)
   BPF_PATH=$(OUTPUT)
+  SUBCMD_PATH=$(OUTPUT)
 ifneq ($(subdir),)
-  LIB_PATH=$(OUTPUT)/../lib/api/
+  API_PATH=$(OUTPUT)/../lib/api/
 else
-  LIB_PATH=$(OUTPUT)
+  API_PATH=$(OUTPUT)
 endif
 else
   TE_PATH=$(TRACE_EVENT_DIR)
-  LIB_PATH=$(LIB_DIR)
+  API_PATH=$(LIB_DIR)
   BPF_PATH=$(BPF_DIR)
+  SUBCMD_PATH=$(SUBCMD_DIR)
 endif
 
 LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
@@ -201,11 +204,13 @@ export LIBTRACEEVENT
 LIBTRACEEVENT_DYNAMIC_LIST = $(TE_PATH)libtraceevent-dynamic-list
 LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS = -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYNAMIC_LIST)
 
-LIBAPI = $(LIB_PATH)libapi.a
+LIBAPI = $(API_PATH)libapi.a
 export LIBAPI
 
 LIBBPF = $(BPF_PATH)libbpf.a
 
+LIBSUBCMD = $(SUBCMD_PATH)libsubcmd.a
+
 # python extension build directories
 PYTHON_EXTBUILD     := $(OUTPUT)python_ext_build/
 PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
@@ -257,7 +262,7 @@ export PERL_PATH
 
 LIB_FILE=$(OUTPUT)libperf.a
 
-PERFLIBS = $(LIB_FILE) $(LIBAPI) $(LIBTRACEEVENT)
+PERFLIBS = $(LIB_FILE) $(LIBAPI) $(LIBTRACEEVENT) $(LIBSUBCMD)
 ifndef NO_LIBBPF
   PERFLIBS += $(LIBBPF)
 endif
@@ -420,7 +425,7 @@ $(LIBTRACEEVENT)-clean:
 	$(call QUIET_CLEAN, libtraceevent)
 	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
 
-install-traceevent-plugins: $(LIBTRACEEVENT)
+install-traceevent-plugins: libtraceevent_plugins
 	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
 
 $(LIBAPI): fixdep FORCE
@@ -431,12 +436,19 @@ $(LIBAPI)-clean:
 	$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
 
 $(LIBBPF): fixdep FORCE
-	$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) $(OUTPUT)libbpf.a
+	$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(realpath $(OUTPUT)FEATURE-DUMP)
 
 $(LIBBPF)-clean:
 	$(call QUIET_CLEAN, libbpf)
 	$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) clean >/dev/null
 
+$(LIBSUBCMD): fixdep FORCE
+	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) $(OUTPUT)libsubcmd.a
+
+$(LIBSUBCMD)-clean:
+	$(call QUIET_CLEAN, libsubcmd)
+	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) clean
+
 help:
 	@echo 'Perf make targets:'
 	@echo '  doc		- make *all* documentation (see below)'
@@ -476,7 +488,7 @@ INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html
 $(DOC_TARGETS):
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all)
 
-TAG_FOLDERS= . ../lib/traceevent ../lib/api ../lib/symbol ../include ../lib/bpf
+TAG_FOLDERS= . ../lib ../include
 TAG_FILES= ../../include/uapi/linux/perf_event.h
 
 TAGS:
@@ -555,6 +567,9 @@ endif
 	$(call QUIET_INSTALL, perf_completion-script) \
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'; \
 		$(INSTALL) perf-completion.sh '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+	$(call QUIET_INSTALL, perf-tip) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(tip_instdir_SQ)'; \
+		$(INSTALL) Documentation/tips.txt -t '$(DESTDIR_SQ)$(tip_instdir_SQ)'
 
 install-tests: all install-gtk
 	$(call QUIET_INSTALL, tests) \
@@ -582,15 +597,16 @@ $(INSTALL_DOC_TARGETS):
 #
 config-clean:
 	$(call QUIET_CLEAN, config)
-	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
+	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ $(if $(OUTPUT),OUTPUT=$(OUTPUT)feature/,) clean >/dev/null
 
-clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean config-clean
+clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
-	$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)$(RM) $(OUTPUT).config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
 	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
-		$(OUTPUT)util/intel-pt-decoder/inat-tables.c
+		$(OUTPUT)util/intel-pt-decoder/inat-tables.c $(OUTPUT)fixdep \
+		$(OUTPUT)tests/llvm-src-{base,kbuild,prologue}.c
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
 	$(python-clean)
 
diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h
index 7ed00f4b0908..b48de2f5813c 100644
--- a/tools/perf/arch/x86/include/arch-tests.h
+++ b/tools/perf/arch/x86/include/arch-tests.h
@@ -2,10 +2,10 @@
 #define ARCH_TESTS_H
 
 /* Tests */
-int test__rdpmc(void);
-int test__perf_time_to_tsc(void);
-int test__insn_x86(void);
-int test__intel_cqm_count_nmi_context(void);
+int test__rdpmc(int subtest);
+int test__perf_time_to_tsc(int subtest);
+int test__insn_x86(int subtest);
+int test__intel_cqm_count_nmi_context(int subtest);
 
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
 struct thread;
diff --git a/tools/perf/arch/x86/tests/insn-x86.c b/tools/perf/arch/x86/tests/insn-x86.c
index b6115dfd28f0..08d9b2bc185c 100644
--- a/tools/perf/arch/x86/tests/insn-x86.c
+++ b/tools/perf/arch/x86/tests/insn-x86.c
@@ -171,7 +171,7 @@ static int test_data_set(struct test_data *dat_set, int x86_64)
  * verbose (-v) option to see all the instructions and whether or not they
  * decoded successfuly.
  */
-int test__insn_x86(void)
+int test__insn_x86(int subtest __maybe_unused)
 {
 	int ret = 0;
 
diff --git a/tools/perf/arch/x86/tests/intel-cqm.c b/tools/perf/arch/x86/tests/intel-cqm.c
index d28c1b6a3b54..3e89ba825f6b 100644
--- a/tools/perf/arch/x86/tests/intel-cqm.c
+++ b/tools/perf/arch/x86/tests/intel-cqm.c
@@ -33,7 +33,7 @@ static pid_t spawn(void)
  * the last read counter value to avoid triggering a WARN_ON_ONCE() in
  * smp_call_function_many() caused by sending IPIs from NMI context.
  */
-int test__intel_cqm_count_nmi_context(void)
+int test__intel_cqm_count_nmi_context(int subtest __maybe_unused)
 {
 	struct perf_evlist *evlist = NULL;
 	struct perf_evsel *evsel = NULL;
@@ -54,7 +54,7 @@ int test__intel_cqm_count_nmi_context(void)
 
 	ret = parse_events(evlist, "intel_cqm/llc_occupancy/", NULL);
 	if (ret) {
-		pr_debug("parse_events failed\n");
+		pr_debug("parse_events failed, is \"intel_cqm/llc_occupancy/\" available?\n");
 		err = TEST_SKIP;
 		goto out;
 	}
diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
index 658cd200af74..9d29ee283ac5 100644
--- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c
+++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
@@ -35,13 +35,12 @@
  * %0 is returned, otherwise %-1 is returned.  If TSC conversion is not
  * supported then then the test passes but " (not supported)" is printed.
  */
-int test__perf_time_to_tsc(void)
+int test__perf_time_to_tsc(int subtest __maybe_unused)
 {
 	struct record_opts opts = {
 		.mmap_pages	     = UINT_MAX,
 		.user_freq	     = UINT_MAX,
 		.user_interval	     = ULLONG_MAX,
-		.freq		     = 4000,
 		.target		     = {
 			.uses_mmap   = true,
 		},
diff --git a/tools/perf/arch/x86/tests/rdpmc.c b/tools/perf/arch/x86/tests/rdpmc.c
index e7688214c7cf..7bb0d13c235f 100644
--- a/tools/perf/arch/x86/tests/rdpmc.c
+++ b/tools/perf/arch/x86/tests/rdpmc.c
@@ -149,7 +149,7 @@ out_close:
 	return 0;
 }
 
-int test__rdpmc(void)
+int test__rdpmc(int subtest __maybe_unused)
 {
 	int status = 0;
 	int wret = 0;
diff --git a/tools/perf/arch/x86/util/Build b/tools/perf/arch/x86/util/Build
index ff63649fa9ac..465970370f3e 100644
--- a/tools/perf/arch/x86/util/Build
+++ b/tools/perf/arch/x86/util/Build
@@ -5,6 +5,7 @@ libperf-y += kvm-stat.o
 libperf-y += perf_regs.o
 
 libperf-$(CONFIG_DWARF) += dwarf-regs.o
+libperf-$(CONFIG_BPF_PROLOGUE) += dwarf-regs.o
 
 libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
 libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
index 9b94ce520917..8d8150f1cf9b 100644
--- a/tools/perf/arch/x86/util/intel-bts.c
+++ b/tools/perf/arch/x86/util/intel-bts.c
@@ -327,7 +327,7 @@ static int intel_bts_snapshot_start(struct auxtrace_record *itr)
 
 	evlist__for_each(btsr->evlist, evsel) {
 		if (evsel->attr.type == btsr->intel_bts_pmu->type)
-			return perf_evlist__disable_event(btsr->evlist, evsel);
+			return perf_evsel__disable(evsel);
 	}
 	return -EINVAL;
 }
@@ -340,7 +340,7 @@ static int intel_bts_snapshot_finish(struct auxtrace_record *itr)
 
 	evlist__for_each(btsr->evlist, evsel) {
 		if (evsel->attr.type == btsr->intel_bts_pmu->type)
-			return perf_evlist__enable_event(btsr->evlist, evsel);
+			return perf_evsel__enable(evsel);
 	}
 	return -EINVAL;
 }
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index b02af064f0f9..f05daacc9e78 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -26,7 +26,7 @@
 #include "../../util/evlist.h"
 #include "../../util/evsel.h"
 #include "../../util/cpumap.h"
-#include "../../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../../util/parse-events.h"
 #include "../../util/pmu.h"
 #include "../../util/debug.h"
@@ -725,7 +725,7 @@ static int intel_pt_snapshot_start(struct auxtrace_record *itr)
 
 	evlist__for_each(ptr->evlist, evsel) {
 		if (evsel->attr.type == ptr->intel_pt_pmu->type)
-			return perf_evlist__disable_event(ptr->evlist, evsel);
+			return perf_evsel__disable(evsel);
 	}
 	return -EINVAL;
 }
@@ -738,7 +738,7 @@ static int intel_pt_snapshot_finish(struct auxtrace_record *itr)
 
 	evlist__for_each(ptr->evlist, evsel) {
 		if (evsel->attr.type == ptr->intel_pt_pmu->type)
-			return perf_evlist__enable_event(ptr->evlist, evsel);
+			return perf_evsel__enable(evsel);
 	}
 	return -EINVAL;
 }
diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c
index fc9bebd2cca0..0999ac536d86 100644
--- a/tools/perf/bench/futex-hash.c
+++ b/tools/perf/bench/futex-hash.c
@@ -11,7 +11,7 @@
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/stat.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "bench.h"
 #include "futex.h"
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index bc6a16adbca8..6a18ce21f865 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -5,7 +5,7 @@
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/stat.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "bench.h"
 #include "futex.h"
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index ad0d9b5342fb..718238683013 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -11,7 +11,7 @@
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/stat.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "bench.h"
 #include "futex.h"
diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c
index 6d8c9fa2a16c..91aaf2a1fa90 100644
--- a/tools/perf/bench/futex-wake-parallel.c
+++ b/tools/perf/bench/futex-wake-parallel.c
@@ -10,7 +10,7 @@
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/stat.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "bench.h"
 #include "futex.h"
diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c
index e5e41d3bdce7..f416bd705f66 100644
--- a/tools/perf/bench/futex-wake.c
+++ b/tools/perf/bench/futex-wake.c
@@ -11,7 +11,7 @@
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/stat.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "bench.h"
 #include "futex.h"
diff --git a/tools/perf/bench/mem-functions.c b/tools/perf/bench/mem-functions.c
index 9419b944220f..a91aa85d80ff 100644
--- a/tools/perf/bench/mem-functions.c
+++ b/tools/perf/bench/mem-functions.c
@@ -8,7 +8,7 @@
 
 #include "../perf.h"
 #include "../util/util.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "../util/cloexec.h"
 #include "bench.h"
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 492df2752a2d..5049d6357a46 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -7,7 +7,7 @@
 #include "../perf.h"
 #include "../builtin.h"
 #include "../util/util.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../util/cloexec.h"
 
 #include "bench.h"
diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index d4ff1b539cfd..bfaf9503de8e 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -11,7 +11,7 @@
 
 #include "../perf.h"
 #include "../util/util.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../builtin.h"
 #include "bench.h"
 
diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 005cc283790c..1dc2d13cc272 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -10,7 +10,7 @@
  */
 #include "../perf.h"
 #include "../util/util.h"
-#include "../util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "../builtin.h"
 #include "bench.h"
 
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 2bf9b3fd9e61..cc5c1267c738 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -21,7 +21,7 @@
 #include "util/evsel.h"
 #include "util/annotate.h"
 #include "util/event.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 #include "util/thread.h"
 #include "util/sort.h"
@@ -47,7 +47,7 @@ struct perf_annotate {
 };
 
 static int perf_evsel__add_sample(struct perf_evsel *evsel,
-				  struct perf_sample *sample __maybe_unused,
+				  struct perf_sample *sample,
 				  struct addr_location *al,
 				  struct perf_annotate *ann)
 {
@@ -72,7 +72,10 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
 		return 0;
 	}
 
-	he = __hists__add_entry(hists, al, NULL, NULL, NULL, 1, 1, 0, true);
+	sample->period = 1;
+	sample->weight = 1;
+
+	he = __hists__add_entry(hists, al, NULL, NULL, NULL, sample, true);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -343,18 +346,19 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 		return ret;
 
 	argc = parse_options(argc, argv, options, annotate_usage, 0);
+	if (argc) {
+		/*
+		 * Special case: if there's an argument left then assume that
+		 * it's a symbol filter:
+		 */
+		if (argc > 1)
+			usage_with_options(annotate_usage, options);
 
-	if (annotate.use_stdio)
-		use_browser = 0;
-	else if (annotate.use_tui)
-		use_browser = 1;
-	else if (annotate.use_gtk)
-		use_browser = 2;
+		annotate.sym_hist_filter = argv[0];
+	}
 
 	file.path  = input_name;
 
-	setup_browser(true);
-
 	annotate.session = perf_session__new(&file, false, &annotate.tool);
 	if (annotate.session == NULL)
 		return -1;
@@ -366,19 +370,17 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (ret < 0)
 		goto out_delete;
 
-	if (setup_sorting() < 0)
+	if (setup_sorting(NULL) < 0)
 		usage_with_options(annotate_usage, options);
 
-	if (argc) {
-		/*
-		 * Special case: if there's an argument left then assume that
-		 * it's a symbol filter:
-		 */
-		if (argc > 1)
-			usage_with_options(annotate_usage, options);
+	if (annotate.use_stdio)
+		use_browser = 0;
+	else if (annotate.use_tui)
+		use_browser = 1;
+	else if (annotate.use_gtk)
+		use_browser = 2;
 
-		annotate.sym_hist_filter = argv[0];
-	}
+	setup_browser(true);
 
 	ret = __cmd_annotate(&annotate);
 
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index b17aed36ca16..a1cddc6bbf0f 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -16,7 +16,7 @@
  */
 #include "perf.h"
 #include "util/util.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "builtin.h"
 #include "bench/bench.h"
 
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 7b8450cd33c2..d93bff7fc0e4 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -16,7 +16,7 @@
 #include "util/cache.h"
 #include "util/debug.h"
 #include "util/header.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/strlist.h"
 #include "util/build-id.h"
 #include "util/session.h"
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 6419f57b0850..5e914ee79eb3 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -12,7 +12,7 @@
 #include "util/build-id.h"
 #include "util/cache.h"
 #include "util/debug.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/session.h"
 #include "util/symbol.h"
 #include "util/data.h"
diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
new file mode 100644
index 000000000000..f04e804a9fad
--- /dev/null
+++ b/tools/perf/builtin-config.c
@@ -0,0 +1,66 @@
+/*
+ * builtin-config.c
+ *
+ * Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com>
+ *
+ */
+#include "builtin.h"
+
+#include "perf.h"
+
+#include "util/cache.h"
+#include <subcmd/parse-options.h>
+#include "util/util.h"
+#include "util/debug.h"
+
+static const char * const config_usage[] = {
+	"perf config [options]",
+	NULL
+};
+
+enum actions {
+	ACTION_LIST = 1
+} actions;
+
+static struct option config_options[] = {
+	OPT_SET_UINT('l', "list", &actions,
+		     "show current config variables", ACTION_LIST),
+	OPT_END()
+};
+
+static int show_config(const char *key, const char *value,
+		       void *cb __maybe_unused)
+{
+	if (value)
+		printf("%s=%s\n", key, value);
+	else
+		printf("%s\n", key);
+
+	return 0;
+}
+
+int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
+{
+	int ret = 0;
+
+	argc = parse_options(argc, argv, config_options, config_usage,
+			     PARSE_OPT_STOP_AT_NON_OPTION);
+
+	switch (actions) {
+	case ACTION_LIST:
+		if (argc) {
+			pr_err("Error: takes no arguments\n");
+			parse_options_usage(config_usage, config_options, "l", 1);
+		} else {
+			ret = perf_config(show_config, NULL);
+			if (ret < 0)
+				pr_err("Nothing configured, "
+				       "please check your ~/.perfconfig file\n");
+		}
+		break;
+	default:
+		usage_with_options(config_usage, config_options);
+	}
+
+	return ret;
+}
diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
index d6525bc54d13..b97bc1518b44 100644
--- a/tools/perf/builtin-data.c
+++ b/tools/perf/builtin-data.c
@@ -2,7 +2,7 @@
 #include "builtin.h"
 #include "perf.h"
 #include "debug.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 #include "data-convert-bt.h"
 
 typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 0b180a885ba3..36ccc2b8827f 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -311,11 +311,11 @@ static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,
 }
 
 static int hists__add_entry(struct hists *hists,
-			    struct addr_location *al, u64 period,
-			    u64 weight, u64 transaction)
+			    struct addr_location *al,
+			    struct perf_sample *sample)
 {
-	if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight,
-			       transaction, true) != NULL)
+	if (__hists__add_entry(hists, al, NULL, NULL, NULL,
+			       sample, true) != NULL)
 		return 0;
 	return -ENOMEM;
 }
@@ -336,8 +336,7 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
 		return -1;
 	}
 
-	if (hists__add_entry(hists, &al, sample->period,
-			     sample->weight, sample->transaction)) {
+	if (hists__add_entry(hists, &al, sample)) {
 		pr_warning("problem incrementing symbol period, skipping event\n");
 		goto out_put;
 	}
@@ -1208,7 +1207,7 @@ static int ui_init(void)
 		BUG_ON(1);
 	}
 
-	list_add(&fmt->sort_list, &perf_hpp__sort_list);
+	perf_hpp__register_sort_field(fmt);
 	return 0;
 }
 
@@ -1280,7 +1279,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	sort__mode = SORT_MODE__DIFF;
 
-	if (setup_sorting() < 0)
+	if (setup_sorting(NULL) < 0)
 		usage_with_options(diff_usage, options);
 
 	setup_pager();
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index f4d62510acbb..8a31f511e1a0 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -12,7 +12,7 @@
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include "util/parse-events.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/session.h"
 #include "util/data.h"
 #include "util/debug.h"
@@ -26,14 +26,22 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
 		.mode = PERF_DATA_MODE_READ,
 		.force = details->force,
 	};
+	bool has_tracepoint = false;
 
 	session = perf_session__new(&file, 0, NULL);
 	if (session == NULL)
 		return -1;
 
-	evlist__for_each(session->evlist, pos)
+	evlist__for_each(session->evlist, pos) {
 		perf_evsel__fprintf(pos, details, stdout);
 
+		if (pos->attr.type == PERF_TYPE_TRACEPOINT)
+			has_tracepoint = true;
+	}
+
+	if (has_tracepoint && !details->trace_fields)
+		printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
+
 	perf_session__delete(session);
 	return 0;
 }
@@ -49,6 +57,7 @@ int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_BOOLEAN('g', "group", &details.event_group,
 		    "Show event group information"),
 	OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
+	OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
 	OPT_END()
 	};
 	const char * const evlist_usage[] = {
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index a7d588bf3cdd..96c1a4cfbbbf 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -6,11 +6,11 @@
 #include "perf.h"
 #include "util/cache.h"
 #include "builtin.h"
-#include "util/exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "common-cmds.h"
-#include "util/parse-options.h"
-#include "util/run-command.h"
-#include "util/help.h"
+#include <subcmd/parse-options.h>
+#include <subcmd/run-command.h>
+#include <subcmd/help.h>
 #include "util/debug.h"
 
 static struct man_viewer_list {
@@ -407,7 +407,7 @@ static int get_html_page_path(struct strbuf *page_path, const char *page)
 #ifndef open_html
 static void open_html(const char *path)
 {
-	execl_perf_cmd("web--browse", "-c", "help.browser", path, NULL);
+	execl_cmd("web--browse", "-c", "help.browser", path, NULL);
 }
 #endif
 
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 99d127fe9c35..0022e02ed31a 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -18,7 +18,7 @@
 #include "util/data.h"
 #include "util/auxtrace.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 
 #include <linux/list.h>
 
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 93ce665f976f..118010553d0c 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -12,7 +12,7 @@
 #include "util/tool.h"
 #include "util/callchain.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/trace-event.h"
 #include "util/data.h"
 #include "util/cpumap.h"
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index dd94b4ca2213..4418d9214872 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -10,7 +10,7 @@
 #include "util/header.h"
 #include "util/session.h"
 #include "util/intlist.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/trace-event.h"
 #include "util/debug.h"
 #include "util/tool.h"
@@ -1351,7 +1351,6 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	disable_buildid_cache();
 
 	use_browser = 0;
-	setup_browser(false);
 
 	if (argc) {
 		argc = parse_options(argc, argv, live_options,
@@ -1409,8 +1408,6 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	err = kvm_events_live_report(kvm);
 
 out:
-	exit_browser(0);
-
 	if (kvm->session)
 		perf_session__delete(kvm->session);
 	kvm->session = NULL;
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index bf679e2c978b..5e22db4684b8 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -14,7 +14,7 @@
 #include "util/parse-events.h"
 #include "util/cache.h"
 #include "util/pmu.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 
 int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
 {
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index de16aaed516e..ce3bfb48b26f 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -9,7 +9,7 @@
 #include "util/thread.h"
 #include "util/header.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/trace-event.h"
 
 #include "util/debug.h"
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 80170aace5d4..390170041696 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -1,7 +1,7 @@
 #include "builtin.h"
 #include "perf.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/trace-event.h"
 #include "util/tool.h"
 #include "util/session.h"
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 132afc97676c..9af859b28b15 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -37,7 +37,7 @@
 #include "util/strfilter.h"
 #include "util/symbol.h"
 #include "util/debug.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/probe-finder.h"
 #include "util/probe-event.h"
 #include "util/probe-file.h"
@@ -249,6 +249,9 @@ static int opt_show_vars(const struct option *opt,
 
 	return ret;
 }
+#else
+# define opt_show_lines NULL
+# define opt_show_vars NULL
 #endif
 static int opt_add_probe_event(const struct option *opt,
 			      const char *str, int unset __maybe_unused)
@@ -473,7 +476,6 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		opt_add_probe_event),
 	OPT_BOOLEAN('f', "force", &probe_conf.force_add, "forcibly add events"
 		    " with existing name"),
-#ifdef HAVE_DWARF_SUPPORT
 	OPT_CALLBACK('L', "line", NULL,
 		     "FUNC[:RLN[+NUM|-RLN2]]|SRC:ALN[+NUM|-ALN2]",
 		     "Show source code lines.", opt_show_lines),
@@ -490,7 +492,6 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "directory", "path to kernel source"),
 	OPT_BOOLEAN('\0', "no-inlines", &probe_conf.no_inlines,
 		"Don't search inlined functions"),
-#endif
 	OPT__DRY_RUN(&probe_event_dry_run),
 	OPT_INTEGER('\0', "max-probes", &probe_conf.max_probes,
 		 "Set how many probe points can be found for a probe."),
@@ -521,6 +522,16 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 #ifdef HAVE_DWARF_SUPPORT
 	set_option_flag(options, 'L', "line", PARSE_OPT_EXCLUSIVE);
 	set_option_flag(options, 'V', "vars", PARSE_OPT_EXCLUSIVE);
+#else
+# define set_nobuild(s, l, c) set_option_nobuild(options, s, l, "NO_DWARF=1", c)
+	set_nobuild('L', "line", false);
+	set_nobuild('V', "vars", false);
+	set_nobuild('\0', "externs", false);
+	set_nobuild('\0', "range", false);
+	set_nobuild('k', "vmlinux", true);
+	set_nobuild('s', "source", true);
+	set_nobuild('\0', "no-inlines", true);
+# undef set_nobuild
 #endif
 	set_option_flag(options, 'F', "funcs", PARSE_OPT_EXCLUSIVE);
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 199fc31e3919..dc4e0adf5c5b 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -11,7 +11,7 @@
 
 #include "util/build-id.h"
 #include "util/util.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 
 #include "util/callchain.h"
@@ -452,6 +452,8 @@ static void record__init_features(struct record *rec)
 
 	if (!rec->opts.full_auxtrace)
 		perf_header__clear_feat(&session->header, HEADER_AUXTRACE);
+
+	perf_header__clear_feat(&session->header, HEADER_STAT);
 }
 
 static volatile int workload_exec_errno;
@@ -813,8 +815,12 @@ int record_parse_callchain_opt(const struct option *opt,
 	}
 
 	ret = parse_callchain_record_opt(arg, &callchain_param);
-	if (!ret)
+	if (!ret) {
+		/* Enable data address sampling for DWARF unwind. */
+		if (callchain_param.record_mode == CALLCHAIN_DWARF)
+			record->sample_address = true;
 		callchain_debug();
+	}
 
 	return ret;
 }
@@ -837,6 +843,19 @@ int record_callchain_opt(const struct option *opt,
 
 static int perf_record_config(const char *var, const char *value, void *cb)
 {
+	struct record *rec = cb;
+
+	if (!strcmp(var, "record.build-id")) {
+		if (!strcmp(value, "cache"))
+			rec->no_buildid_cache = false;
+		else if (!strcmp(value, "no-cache"))
+			rec->no_buildid_cache = true;
+		else if (!strcmp(value, "skip"))
+			rec->no_buildid = true;
+		else
+			return -1;
+		return 0;
+	}
 	if (!strcmp(var, "record.call-graph"))
 		var = "call-graph.record-mode"; /* fall-through */
 
@@ -1113,12 +1132,12 @@ struct option __record_options[] = {
 			"per thread proc mmap processing timeout in ms"),
 	OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events,
 		    "Record context switch events"),
-#ifdef HAVE_LIBBPF_SUPPORT
 	OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path",
 		   "clang binary to use for compiling BPF scriptlets"),
 	OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options",
 		   "options passed to clang when compiling BPF scriptlets"),
-#endif
+	OPT_STRING(0, "vmlinux", &symbol_conf.vmlinux_name,
+		   "file", "vmlinux pathname"),
 	OPT_END()
 };
 
@@ -1130,6 +1149,27 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
 	struct record *rec = &record;
 	char errbuf[BUFSIZ];
 
+#ifndef HAVE_LIBBPF_SUPPORT
+# define set_nobuild(s, l, c) set_option_nobuild(record_options, s, l, "NO_LIBBPF=1", c)
+	set_nobuild('\0', "clang-path", true);
+	set_nobuild('\0', "clang-opt", true);
+# undef set_nobuild
+#endif
+
+#ifndef HAVE_BPF_PROLOGUE
+# if !defined (HAVE_DWARF_SUPPORT)
+#  define REASON  "NO_DWARF=1"
+# elif !defined (HAVE_LIBBPF_SUPPORT)
+#  define REASON  "NO_LIBBPF=1"
+# else
+#  define REASON  "this architecture doesn't support BPF prologue"
+# endif
+# define set_nobuild(s, l, c) set_option_nobuild(record_options, s, l, REASON, c)
+	set_nobuild('\0', "vmlinux", true);
+# undef set_nobuild
+# undef REASON
+#endif
+
 	rec->evlist = perf_evlist__new();
 	if (rec->evlist == NULL)
 		return -ENOMEM;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f256fac1e722..d5a42ee12529 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -27,7 +27,7 @@
 #include "util/session.h"
 #include "util/tool.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 
 #include "util/thread.h"
@@ -45,7 +45,6 @@ struct report {
 	struct perf_tool	tool;
 	struct perf_session	*session;
 	bool			use_tui, use_gtk, use_stdio;
-	bool			hide_unresolved;
 	bool			dont_use_callchains;
 	bool			show_full_info;
 	bool			show_threads;
@@ -146,7 +145,7 @@ static int process_sample_event(struct perf_tool *tool,
 	struct hist_entry_iter iter = {
 		.evsel 			= evsel,
 		.sample 		= sample,
-		.hide_unresolved 	= rep->hide_unresolved,
+		.hide_unresolved 	= symbol_conf.hide_unresolved,
 		.add_entry_cb 		= hist_iter__report_callback,
 	};
 	int ret = 0;
@@ -157,7 +156,7 @@ static int process_sample_event(struct perf_tool *tool,
 		return -1;
 	}
 
-	if (rep->hide_unresolved && al.sym == NULL)
+	if (symbol_conf.hide_unresolved && al.sym == NULL)
 		goto out_put;
 
 	if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
@@ -434,7 +433,7 @@ static int report__browse_hists(struct report *rep)
 	int ret;
 	struct perf_session *session = rep->session;
 	struct perf_evlist *evlist = session->evlist;
-	const char *help = "For a higher level overview, try: perf report --sort comm,dso";
+	const char *help = perf_tip(TIPDIR);
 
 	switch (use_browser) {
 	case 1:
@@ -514,20 +513,26 @@ static int __cmd_report(struct report *rep)
 	if (rep->cpu_list) {
 		ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 					       rep->cpu_bitmap);
-		if (ret)
+		if (ret) {
+			ui__error("failed to set cpu bitmap\n");
 			return ret;
+		}
 	}
 
 	if (rep->show_threads)
 		perf_read_values_init(&rep->show_threads_values);
 
 	ret = report__setup_sample_type(rep);
-	if (ret)
+	if (ret) {
+		/* report__setup_sample_type() already showed error message */
 		return ret;
+	}
 
 	ret = perf_session__process_events(session);
-	if (ret)
+	if (ret) {
+		ui__error("failed to process sample\n");
 		return ret;
+	}
 
 	report__warn_kptr_restrict(rep);
 
@@ -625,7 +630,7 @@ parse_percent_limit(const struct option *opt, const char *str,
 	return 0;
 }
 
-#define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function"
+#define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
 
 const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
 				     CALLCHAIN_REPORT_HELP
@@ -708,7 +713,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
 		    "Only display entries with parent-match"),
 	OPT_CALLBACK_DEFAULT('g', "call-graph", &report,
-			     "print_type,threshold[,print_limit],order,sort_key[,branch]",
+			     "print_type,threshold[,print_limit],order,sort_key[,branch],value",
 			     report_callchain_help, &report_parse_callchain_opt,
 			     callchain_default_opt),
 	OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
@@ -740,7 +745,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
 		   "separator for columns, no spaces will be added between "
 		   "columns '.' is reserved."),
-	OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
+	OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
 		    "Only display entries resolved to a symbol"),
 	OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 		    "Look for files with symbols relative to this directory"),
@@ -783,6 +788,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "Show callgraph from reference event"),
 	OPT_INTEGER(0, "socket-filter", &report.socket_filter,
 		    "only show processor socket that match with this filter"),
+	OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
+		    "Show raw trace event output (do not use print fmt or plugins)"),
 	OPT_END()
 	};
 	struct perf_data_file file = {
@@ -796,6 +803,16 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	perf_config(report__config, &report);
 
 	argc = parse_options(argc, argv, options, report_usage, 0);
+	if (argc) {
+		/*
+		 * Special case: if there's an argument left then assume that
+		 * it's a symbol filter:
+		 */
+		if (argc > 1)
+			usage_with_options(report_usage, options);
+
+		report.symbol_filter_str = argv[0];
+	}
 
 	if (symbol_conf.vmlinux_name &&
 	    access(symbol_conf.vmlinux_name, R_OK)) {
@@ -882,7 +899,7 @@ repeat:
 		symbol_conf.cumulate_callchain = false;
 	}
 
-	if (setup_sorting() < 0) {
+	if (setup_sorting(session->evlist) < 0) {
 		if (sort_order)
 			parse_options_usage(report_usage, options, "s", 1);
 		if (field_order)
@@ -941,17 +958,6 @@ repeat:
 	if (symbol__init(&session->header.env) < 0)
 		goto error;
 
-	if (argc) {
-		/*
-		 * Special case: if there's an argument left then assume that
-		 * it's a symbol filter:
-		 */
-		if (argc > 1)
-			usage_with_options(report_usage, options);
-
-		report.symbol_filter_str = argv[0];
-	}
-
 	sort__setup_elide(stdout);
 
 	ret = __cmd_report(&report);
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index e3d3e32c0a93..871b55ae22a4 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -12,7 +12,7 @@
 #include "util/tool.h"
 #include "util/cloexec.h"
 
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/trace-event.h"
 
 #include "util/debug.h"
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 72b5deb4bd79..c691214d820f 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3,9 +3,9 @@
 #include "perf.h"
 #include "util/cache.h"
 #include "util/debug.h"
-#include "util/exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "util/header.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/perf_regs.h"
 #include "util/session.h"
 #include "util/tool.h"
@@ -18,7 +18,11 @@
 #include "util/sort.h"
 #include "util/data.h"
 #include "util/auxtrace.h"
+#include "util/cpumap.h"
+#include "util/thread_map.h"
+#include "util/stat.h"
 #include <linux/bitmap.h>
+#include "asm/bug.h"
 
 static char const		*script_name;
 static char const		*generate_script_lang;
@@ -32,6 +36,7 @@ static bool			print_flags;
 static bool			nanosecs;
 static const char		*cpu_list;
 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
+static struct perf_stat_config	stat_config;
 
 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
 
@@ -130,6 +135,18 @@ static struct {
 
 		.invalid_fields = PERF_OUTPUT_TRACE,
 	},
+
+	[PERF_TYPE_BREAKPOINT] = {
+		.user_set = false,
+
+		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
+			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
+			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
+			      PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
+			      PERF_OUTPUT_PERIOD,
+
+		.invalid_fields = PERF_OUTPUT_TRACE,
+	},
 };
 
 static bool output_set_by_user(void)
@@ -204,6 +221,9 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
 	struct perf_event_attr *attr = &evsel->attr;
 	bool allow_user_set;
 
+	if (perf_header__has_feat(&session->header, HEADER_STAT))
+		return 0;
+
 	allow_user_set = perf_header__has_feat(&session->header,
 					       HEADER_AUXTRACE);
 
@@ -588,8 +608,35 @@ static void print_sample_flags(u32 flags)
 	printf("  %-4s ", str);
 }
 
-static void process_event(union perf_event *event, struct perf_sample *sample,
-			  struct perf_evsel *evsel, struct addr_location *al)
+struct perf_script {
+	struct perf_tool	tool;
+	struct perf_session	*session;
+	bool			show_task_events;
+	bool			show_mmap_events;
+	bool			show_switch_events;
+	bool			allocated;
+	struct cpu_map		*cpus;
+	struct thread_map	*threads;
+	int			name_width;
+};
+
+static int perf_evlist__max_name_len(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel;
+	int max = 0;
+
+	evlist__for_each(evlist, evsel) {
+		int len = strlen(perf_evsel__name(evsel));
+
+		max = MAX(len, max);
+	}
+
+	return max;
+}
+
+static void process_event(struct perf_script *script, union perf_event *event,
+			  struct perf_sample *sample, struct perf_evsel *evsel,
+			  struct addr_location *al)
 {
 	struct thread *thread = al->thread;
 	struct perf_event_attr *attr = &evsel->attr;
@@ -604,7 +651,12 @@ static void process_event(union perf_event *event, struct perf_sample *sample,
 
 	if (PRINT_FIELD(EVNAME)) {
 		const char *evname = perf_evsel__name(evsel);
-		printf("%s: ", evname ? evname : "[unknown]");
+
+		if (!script->name_width)
+			script->name_width = perf_evlist__max_name_len(script->session->evlist);
+
+		printf("%*s: ", script->name_width,
+		       evname ? evname : "[unknown]");
 	}
 
 	if (print_flags)
@@ -643,65 +695,81 @@ static void process_event(union perf_event *event, struct perf_sample *sample,
 	printf("\n");
 }
 
-static int default_start_script(const char *script __maybe_unused,
-				int argc __maybe_unused,
-				const char **argv __maybe_unused)
-{
-	return 0;
-}
+static struct scripting_ops	*scripting_ops;
 
-static int default_flush_script(void)
+static void __process_stat(struct perf_evsel *counter, u64 tstamp)
 {
-	return 0;
+	int nthreads = thread_map__nr(counter->threads);
+	int ncpus = perf_evsel__nr_cpus(counter);
+	int cpu, thread;
+	static int header_printed;
+
+	if (counter->system_wide)
+		nthreads = 1;
+
+	if (!header_printed) {
+		printf("%3s %8s %15s %15s %15s %15s %s\n",
+		       "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
+		header_printed = 1;
+	}
+
+	for (thread = 0; thread < nthreads; thread++) {
+		for (cpu = 0; cpu < ncpus; cpu++) {
+			struct perf_counts_values *counts;
+
+			counts = perf_counts(counter->counts, cpu, thread);
+
+			printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
+				counter->cpus->map[cpu],
+				thread_map__pid(counter->threads, thread),
+				counts->val,
+				counts->ena,
+				counts->run,
+				tstamp,
+				perf_evsel__name(counter));
+		}
+	}
 }
 
-static int default_stop_script(void)
+static void process_stat(struct perf_evsel *counter, u64 tstamp)
 {
-	return 0;
+	if (scripting_ops && scripting_ops->process_stat)
+		scripting_ops->process_stat(&stat_config, counter, tstamp);
+	else
+		__process_stat(counter, tstamp);
 }
 
-static int default_generate_script(struct pevent *pevent __maybe_unused,
-				   const char *outfile __maybe_unused)
+static void process_stat_interval(u64 tstamp)
 {
-	return 0;
+	if (scripting_ops && scripting_ops->process_stat_interval)
+		scripting_ops->process_stat_interval(tstamp);
 }
 
-static struct scripting_ops default_scripting_ops = {
-	.start_script		= default_start_script,
-	.flush_script		= default_flush_script,
-	.stop_script		= default_stop_script,
-	.process_event		= process_event,
-	.generate_script	= default_generate_script,
-};
-
-static struct scripting_ops	*scripting_ops;
-
 static void setup_scripting(void)
 {
 	setup_perl_scripting();
 	setup_python_scripting();
-
-	scripting_ops = &default_scripting_ops;
 }
 
 static int flush_scripting(void)
 {
-	return scripting_ops->flush_script();
+	return scripting_ops ? scripting_ops->flush_script() : 0;
 }
 
 static int cleanup_scripting(void)
 {
 	pr_debug("\nperf script stopped\n");
 
-	return scripting_ops->stop_script();
+	return scripting_ops ? scripting_ops->stop_script() : 0;
 }
 
-static int process_sample_event(struct perf_tool *tool __maybe_unused,
+static int process_sample_event(struct perf_tool *tool,
 				union perf_event *event,
 				struct perf_sample *sample,
 				struct perf_evsel *evsel,
 				struct machine *machine)
 {
+	struct perf_script *scr = container_of(tool, struct perf_script, tool);
 	struct addr_location al;
 
 	if (debug_mode) {
@@ -727,20 +795,16 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 	if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
 		goto out_put;
 
-	scripting_ops->process_event(event, sample, evsel, &al);
+	if (scripting_ops)
+		scripting_ops->process_event(event, sample, evsel, &al);
+	else
+		process_event(scr, event, sample, evsel, &al);
+
 out_put:
 	addr_location__put(&al);
 	return 0;
 }
 
-struct perf_script {
-	struct perf_tool	tool;
-	struct perf_session	*session;
-	bool			show_task_events;
-	bool			show_mmap_events;
-	bool			show_switch_events;
-};
-
 static int process_attr(struct perf_tool *tool, union perf_event *event,
 			struct perf_evlist **pevlist)
 {
@@ -1156,6 +1220,8 @@ static int parse_output_fields(const struct option *opt __maybe_unused,
 			type = PERF_TYPE_TRACEPOINT;
 		else if (!strcmp(str, "raw"))
 			type = PERF_TYPE_RAW;
+		else if (!strcmp(str, "break"))
+			type = PERF_TYPE_BREAKPOINT;
 		else {
 			fprintf(stderr, "Invalid event type in field string.\n");
 			rc = -EINVAL;
@@ -1421,7 +1487,7 @@ static int list_available_scripts(const struct option *opt __maybe_unused,
 	char first_half[BUFSIZ];
 	char *script_root;
 
-	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
+	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
 
 	scripts_dir = opendir(scripts_path);
 	if (!scripts_dir)
@@ -1542,7 +1608,7 @@ int find_scripts(char **scripts_array, char **scripts_path_array)
 	if (!session)
 		return -1;
 
-	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
+	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
 
 	scripts_dir = opendir(scripts_path);
 	if (!scripts_dir) {
@@ -1600,7 +1666,7 @@ static char *get_script_path(const char *script_root, const char *suffix)
 	char lang_path[MAXPATHLEN];
 	char *__script_root;
 
-	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
+	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
 
 	scripts_dir = opendir(scripts_path);
 	if (!scripts_dir)
@@ -1695,6 +1761,87 @@ static void script__setup_sample_type(struct perf_script *script)
 	}
 }
 
+static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
+				    union perf_event *event,
+				    struct perf_session *session)
+{
+	struct stat_round_event *round = &event->stat_round;
+	struct perf_evsel *counter;
+
+	evlist__for_each(session->evlist, counter) {
+		perf_stat_process_counter(&stat_config, counter);
+		process_stat(counter, round->time);
+	}
+
+	process_stat_interval(round->time);
+	return 0;
+}
+
+static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_session *session __maybe_unused)
+{
+	perf_event__read_stat_config(&stat_config, &event->stat_config);
+	return 0;
+}
+
+static int set_maps(struct perf_script *script)
+{
+	struct perf_evlist *evlist = script->session->evlist;
+
+	if (!script->cpus || !script->threads)
+		return 0;
+
+	if (WARN_ONCE(script->allocated, "stats double allocation\n"))
+		return -EINVAL;
+
+	perf_evlist__set_maps(evlist, script->cpus, script->threads);
+
+	if (perf_evlist__alloc_stats(evlist, true))
+		return -ENOMEM;
+
+	script->allocated = true;
+	return 0;
+}
+
+static
+int process_thread_map_event(struct perf_tool *tool,
+			     union perf_event *event,
+			     struct perf_session *session __maybe_unused)
+{
+	struct perf_script *script = container_of(tool, struct perf_script, tool);
+
+	if (script->threads) {
+		pr_warning("Extra thread map event, ignoring.\n");
+		return 0;
+	}
+
+	script->threads = thread_map__new_event(&event->thread_map);
+	if (!script->threads)
+		return -ENOMEM;
+
+	return set_maps(script);
+}
+
+static
+int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
+			  union perf_event *event,
+			  struct perf_session *session __maybe_unused)
+{
+	struct perf_script *script = container_of(tool, struct perf_script, tool);
+
+	if (script->cpus) {
+		pr_warning("Extra cpu map event, ignoring.\n");
+		return 0;
+	}
+
+	script->cpus = cpu_map__new_data(&event->cpu_map.data);
+	if (!script->cpus)
+		return -ENOMEM;
+
+	return set_maps(script);
+}
+
 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	bool show_full_info = false;
@@ -1723,6 +1870,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 			.auxtrace_info	 = perf_event__process_auxtrace_info,
 			.auxtrace	 = perf_event__process_auxtrace,
 			.auxtrace_error	 = perf_event__process_auxtrace_error,
+			.stat		 = perf_event__process_stat_event,
+			.stat_round	 = process_stat_round_event,
+			.stat_config	 = process_stat_config_event,
+			.thread_map	 = process_thread_map_event,
+			.cpu_map	 = process_cpu_map_event,
 			.ordered_events	 = true,
 			.ordering_requires_timestamps = true,
 		},
@@ -1836,7 +1988,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 		scripting_max_stack = itrace_synth_opts.callchain_sz;
 
 	/* make sure PERF_EXEC_PATH is set for scripts */
-	perf_set_argv_exec_path(perf_exec_path());
+	set_argv_exec_path(get_argv_exec_path());
 
 	if (argc && !script_name && !rec_script_path && !rep_script_path) {
 		int live_pipe[2];
@@ -2076,6 +2228,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	flush_scripting();
 
 out_delete:
+	perf_evlist__free_stats(session->evlist);
 	perf_session__delete(session);
 
 	if (script_started)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index e77880b5094d..7f568244662b 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -45,7 +45,7 @@
 #include "builtin.h"
 #include "util/cgroup.h"
 #include "util/util.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 #include "util/pmu.h"
 #include "util/event.h"
@@ -59,6 +59,9 @@
 #include "util/thread.h"
 #include "util/thread_map.h"
 #include "util/counts.h"
+#include "util/session.h"
+#include "util/tool.h"
+#include "asm/bug.h"
 
 #include <stdlib.h>
 #include <sys/prctl.h>
@@ -126,6 +129,21 @@ static bool			append_file;
 static const char		*output_name;
 static int			output_fd;
 
+struct perf_stat {
+	bool			 record;
+	struct perf_data_file	 file;
+	struct perf_session	*session;
+	u64			 bytes_written;
+	struct perf_tool	 tool;
+	bool			 maps_allocated;
+	struct cpu_map		*cpus;
+	struct thread_map	*threads;
+	enum aggr_mode		 aggr_mode;
+};
+
+static struct perf_stat		perf_stat;
+#define STAT_RECORD		perf_stat.record
+
 static volatile int done = 0;
 
 static struct perf_stat_config stat_config = {
@@ -161,15 +179,43 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
 
 	attr->inherit = !no_inherit;
 
-	if (target__has_cpu(&target))
-		return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
+	/*
+	 * Some events get initialized with sample_(period/type) set,
+	 * like tracepoints. Clear it up for counting.
+	 */
+	attr->sample_period = 0;
+
+	/*
+	 * But set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless
+	 * while avoiding that older tools show confusing messages.
+	 *
+	 * However for pipe sessions we need to keep it zero,
+	 * because script's perf_evsel__check_attr is triggered
+	 * by attr->sample_type != 0, and we can't run it on
+	 * stat sessions.
+	 */
+	if (!(STAT_RECORD && perf_stat.file.is_pipe))
+		attr->sample_type = PERF_SAMPLE_IDENTIFIER;
 
-	if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
+	/*
+	 * Disabling all counters initially, they will be enabled
+	 * either manually by us or by kernel via enable_on_exec
+	 * set later.
+	 */
+	if (perf_evsel__is_group_leader(evsel)) {
 		attr->disabled = 1;
-		if (!initial_delay)
+
+		/*
+		 * In case of initial_delay we enable tracee
+		 * events manually.
+		 */
+		if (target__none(&target) && !initial_delay)
 			attr->enable_on_exec = 1;
 	}
 
+	if (target__has_cpu(&target))
+		return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
+
 	return perf_evsel__open_per_thread(evsel, evsel_list->threads);
 }
 
@@ -185,6 +231,42 @@ static inline int nsec_counter(struct perf_evsel *evsel)
 	return 0;
 }
 
+static int process_synthesized_event(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_sample *sample __maybe_unused,
+				     struct machine *machine __maybe_unused)
+{
+	if (perf_data_file__write(&perf_stat.file, event, event->header.size) < 0) {
+		pr_err("failed to write perf data, error: %m\n");
+		return -1;
+	}
+
+	perf_stat.bytes_written += event->header.size;
+	return 0;
+}
+
+static int write_stat_round_event(u64 tm, u64 type)
+{
+	return perf_event__synthesize_stat_round(NULL, tm, type,
+						 process_synthesized_event,
+						 NULL);
+}
+
+#define WRITE_STAT_ROUND_EVENT(time, interval) \
+	write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval)
+
+#define SID(e, x, y) xyarray__entry(e->sample_id, x, y)
+
+static int
+perf_evsel__write_stat_event(struct perf_evsel *counter, u32 cpu, u32 thread,
+			     struct perf_counts_values *count)
+{
+	struct perf_sample_id *sid = SID(counter, cpu, thread);
+
+	return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count,
+					   process_synthesized_event, NULL);
+}
+
 /*
  * Read out the results of a single counter:
  * do not aggregate counts across CPUs in system-wide mode
@@ -208,6 +290,13 @@ static int read_counter(struct perf_evsel *counter)
 			count = perf_counts(counter->counts, cpu, thread);
 			if (perf_evsel__read(counter, cpu, thread, count))
 				return -1;
+
+			if (STAT_RECORD) {
+				if (perf_evsel__write_stat_event(counter, cpu, thread, count)) {
+					pr_err("failed to write stat event\n");
+					return -1;
+				}
+			}
 		}
 	}
 
@@ -241,21 +330,26 @@ static void process_interval(void)
 	clock_gettime(CLOCK_MONOTONIC, &ts);
 	diff_timespec(&rs, &ts, &ref_time);
 
+	if (STAT_RECORD) {
+		if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSECS_PER_SEC + rs.tv_nsec, INTERVAL))
+			pr_err("failed to write stat round event\n");
+	}
+
 	print_counters(&rs, 0, NULL);
 }
 
-static void handle_initial_delay(void)
+static void enable_counters(void)
 {
-	struct perf_evsel *counter;
-
-	if (initial_delay) {
-		const int ncpus = cpu_map__nr(evsel_list->cpus),
-			nthreads = thread_map__nr(evsel_list->threads);
-
+	if (initial_delay)
 		usleep(initial_delay * 1000);
-		evlist__for_each(evsel_list, counter)
-			perf_evsel__enable(counter, ncpus, nthreads);
-	}
+
+	/*
+	 * We need to enable counters only if:
+	 * - we don't have tracee (attaching to task or cpu)
+	 * - we have initial delay configured
+	 */
+	if (!target__none(&target) || initial_delay)
+		perf_evlist__enable(evsel_list);
 }
 
 static volatile int workload_exec_errno;
@@ -271,6 +365,135 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
 	workload_exec_errno = info->si_value.sival_int;
 }
 
+static bool has_unit(struct perf_evsel *counter)
+{
+	return counter->unit && *counter->unit;
+}
+
+static bool has_scale(struct perf_evsel *counter)
+{
+	return counter->scale != 1;
+}
+
+static int perf_stat_synthesize_config(bool is_pipe)
+{
+	struct perf_evsel *counter;
+	int err;
+
+	if (is_pipe) {
+		err = perf_event__synthesize_attrs(NULL, perf_stat.session,
+						   process_synthesized_event);
+		if (err < 0) {
+			pr_err("Couldn't synthesize attrs.\n");
+			return err;
+		}
+	}
+
+	/*
+	 * Synthesize other events stuff not carried within
+	 * attr event - unit, scale, name
+	 */
+	evlist__for_each(evsel_list, counter) {
+		if (!counter->supported)
+			continue;
+
+		/*
+		 * Synthesize unit and scale only if it's defined.
+		 */
+		if (has_unit(counter)) {
+			err = perf_event__synthesize_event_update_unit(NULL, counter, process_synthesized_event);
+			if (err < 0) {
+				pr_err("Couldn't synthesize evsel unit.\n");
+				return err;
+			}
+		}
+
+		if (has_scale(counter)) {
+			err = perf_event__synthesize_event_update_scale(NULL, counter, process_synthesized_event);
+			if (err < 0) {
+				pr_err("Couldn't synthesize evsel scale.\n");
+				return err;
+			}
+		}
+
+		if (counter->own_cpus) {
+			err = perf_event__synthesize_event_update_cpus(NULL, counter, process_synthesized_event);
+			if (err < 0) {
+				pr_err("Couldn't synthesize evsel scale.\n");
+				return err;
+			}
+		}
+
+		/*
+		 * Name is needed only for pipe output,
+		 * perf.data carries event names.
+		 */
+		if (is_pipe) {
+			err = perf_event__synthesize_event_update_name(NULL, counter, process_synthesized_event);
+			if (err < 0) {
+				pr_err("Couldn't synthesize evsel name.\n");
+				return err;
+			}
+		}
+	}
+
+	err = perf_event__synthesize_thread_map2(NULL, evsel_list->threads,
+						process_synthesized_event,
+						NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize thread map.\n");
+		return err;
+	}
+
+	err = perf_event__synthesize_cpu_map(NULL, evsel_list->cpus,
+					     process_synthesized_event, NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize thread map.\n");
+		return err;
+	}
+
+	err = perf_event__synthesize_stat_config(NULL, &stat_config,
+						 process_synthesized_event, NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize config.\n");
+		return err;
+	}
+
+	return 0;
+}
+
+#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
+
+static int __store_counter_ids(struct perf_evsel *counter,
+			       struct cpu_map *cpus,
+			       struct thread_map *threads)
+{
+	int cpu, thread;
+
+	for (cpu = 0; cpu < cpus->nr; cpu++) {
+		for (thread = 0; thread < threads->nr; thread++) {
+			int fd = FD(counter, cpu, thread);
+
+			if (perf_evlist__id_add_fd(evsel_list, counter,
+						   cpu, thread, fd) < 0)
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int store_counter_ids(struct perf_evsel *counter)
+{
+	struct cpu_map *cpus = counter->cpus;
+	struct thread_map *threads = counter->threads;
+
+	if (perf_evsel__alloc_id(counter, cpus->nr, threads->nr))
+		return -ENOMEM;
+
+	return __store_counter_ids(counter, cpus, threads);
+}
+
 static int __run_perf_stat(int argc, const char **argv)
 {
 	int interval = stat_config.interval;
@@ -281,6 +504,7 @@ static int __run_perf_stat(int argc, const char **argv)
 	size_t l;
 	int status = 0;
 	const bool forks = (argc > 0);
+	bool is_pipe = STAT_RECORD ? perf_stat.file.is_pipe : false;
 
 	if (interval) {
 		ts.tv_sec  = interval / 1000;
@@ -291,7 +515,7 @@ static int __run_perf_stat(int argc, const char **argv)
 	}
 
 	if (forks) {
-		if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
+		if (perf_evlist__prepare_workload(evsel_list, &target, argv, is_pipe,
 						  workload_exec_failed_signal) < 0) {
 			perror("failed to prepare workload");
 			return -1;
@@ -335,6 +559,9 @@ static int __run_perf_stat(int argc, const char **argv)
 		l = strlen(counter->unit);
 		if (l > unit_width)
 			unit_width = l;
+
+		if (STAT_RECORD && store_counter_ids(counter))
+			return -1;
 	}
 
 	if (perf_evlist__apply_filters(evsel_list, &counter)) {
@@ -344,6 +571,24 @@ static int __run_perf_stat(int argc, const char **argv)
 		return -1;
 	}
 
+	if (STAT_RECORD) {
+		int err, fd = perf_data_file__fd(&perf_stat.file);
+
+		if (is_pipe) {
+			err = perf_header__write_pipe(perf_data_file__fd(&perf_stat.file));
+		} else {
+			err = perf_session__write_header(perf_stat.session, evsel_list,
+							 fd, false);
+		}
+
+		if (err < 0)
+			return err;
+
+		err = perf_stat_synthesize_config(is_pipe);
+		if (err < 0)
+			return err;
+	}
+
 	/*
 	 * Enable counters and exec the command:
 	 */
@@ -352,7 +597,7 @@ static int __run_perf_stat(int argc, const char **argv)
 
 	if (forks) {
 		perf_evlist__start_workload(evsel_list);
-		handle_initial_delay();
+		enable_counters();
 
 		if (interval) {
 			while (!waitpid(child_pid, &status, WNOHANG)) {
@@ -371,7 +616,7 @@ static int __run_perf_stat(int argc, const char **argv)
 		if (WIFSIGNALED(status))
 			psignal(WTERMSIG(status), argv[0]);
 	} else {
-		handle_initial_delay();
+		enable_counters();
 		while (!done) {
 			nanosleep(&ts, NULL);
 			if (interval)
@@ -810,8 +1055,8 @@ static void print_header(int argc, const char **argv)
 		else if (target.cpu_list)
 			fprintf(output, "\'CPU(s) %s", target.cpu_list);
 		else if (!target__has_task(&target)) {
-			fprintf(output, "\'%s", argv[0]);
-			for (i = 1; i < argc; i++)
+			fprintf(output, "\'%s", argv ? argv[0] : "pipe");
+			for (i = 1; argv && (i < argc); i++)
 				fprintf(output, " %s", argv[i]);
 		} else if (target.pid)
 			fprintf(output, "process id \'%s", target.pid);
@@ -847,6 +1092,10 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
 	struct perf_evsel *counter;
 	char buf[64], *prefix = NULL;
 
+	/* Do not print anything if we record to the pipe. */
+	if (STAT_RECORD && perf_stat.file.is_pipe)
+		return;
+
 	if (interval)
 		print_interval(prefix = buf, ts);
 	else
@@ -1077,6 +1326,109 @@ static int perf_stat_init_aggr_mode(void)
 	return cpus_aggr_map ? 0 : -ENOMEM;
 }
 
+static void perf_stat__exit_aggr_mode(void)
+{
+	cpu_map__put(aggr_map);
+	cpu_map__put(cpus_aggr_map);
+	aggr_map = NULL;
+	cpus_aggr_map = NULL;
+}
+
+static inline int perf_env__get_cpu(struct perf_env *env, struct cpu_map *map, int idx)
+{
+	int cpu;
+
+	if (idx > map->nr)
+		return -1;
+
+	cpu = map->map[idx];
+
+	if (cpu >= env->nr_cpus_online)
+		return -1;
+
+	return cpu;
+}
+
+static int perf_env__get_socket(struct cpu_map *map, int idx, void *data)
+{
+	struct perf_env *env = data;
+	int cpu = perf_env__get_cpu(env, map, idx);
+
+	return cpu == -1 ? -1 : env->cpu[cpu].socket_id;
+}
+
+static int perf_env__get_core(struct cpu_map *map, int idx, void *data)
+{
+	struct perf_env *env = data;
+	int core = -1, cpu = perf_env__get_cpu(env, map, idx);
+
+	if (cpu != -1) {
+		int socket_id = env->cpu[cpu].socket_id;
+
+		/*
+		 * Encode socket in upper 16 bits
+		 * core_id is relative to socket, and
+		 * we need a global id. So we combine
+		 * socket + core id.
+		 */
+		core = (socket_id << 16) | (env->cpu[cpu].core_id & 0xffff);
+	}
+
+	return core;
+}
+
+static int perf_env__build_socket_map(struct perf_env *env, struct cpu_map *cpus,
+				      struct cpu_map **sockp)
+{
+	return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env);
+}
+
+static int perf_env__build_core_map(struct perf_env *env, struct cpu_map *cpus,
+				    struct cpu_map **corep)
+{
+	return cpu_map__build_map(cpus, corep, perf_env__get_core, env);
+}
+
+static int perf_stat__get_socket_file(struct cpu_map *map, int idx)
+{
+	return perf_env__get_socket(map, idx, &perf_stat.session->header.env);
+}
+
+static int perf_stat__get_core_file(struct cpu_map *map, int idx)
+{
+	return perf_env__get_core(map, idx, &perf_stat.session->header.env);
+}
+
+static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
+{
+	struct perf_env *env = &st->session->header.env;
+
+	switch (stat_config.aggr_mode) {
+	case AGGR_SOCKET:
+		if (perf_env__build_socket_map(env, evsel_list->cpus, &aggr_map)) {
+			perror("cannot build socket map");
+			return -1;
+		}
+		aggr_get_id = perf_stat__get_socket_file;
+		break;
+	case AGGR_CORE:
+		if (perf_env__build_core_map(env, evsel_list->cpus, &aggr_map)) {
+			perror("cannot build core map");
+			return -1;
+		}
+		aggr_get_id = perf_stat__get_core_file;
+		break;
+	case AGGR_NONE:
+	case AGGR_GLOBAL:
+	case AGGR_THREAD:
+	case AGGR_UNSET:
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 /*
  * Add default attributes, if there were no attributes specified or
  * if -d/--detailed, -d -d or -d -d -d is used:
@@ -1236,6 +1588,225 @@ static int add_default_attributes(void)
 	return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
 }
 
+static const char * const recort_usage[] = {
+	"perf stat record [<options>]",
+	NULL,
+};
+
+static void init_features(struct perf_session *session)
+{
+	int feat;
+
+	for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
+		perf_header__set_feat(&session->header, feat);
+
+	perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
+	perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
+	perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
+	perf_header__clear_feat(&session->header, HEADER_AUXTRACE);
+}
+
+static int __cmd_record(int argc, const char **argv)
+{
+	struct perf_session *session;
+	struct perf_data_file *file = &perf_stat.file;
+
+	argc = parse_options(argc, argv, stat_options, record_usage,
+			     PARSE_OPT_STOP_AT_NON_OPTION);
+
+	if (output_name)
+		file->path = output_name;
+
+	if (run_count != 1 || forever) {
+		pr_err("Cannot use -r option with perf stat record.\n");
+		return -1;
+	}
+
+	session = perf_session__new(file, false, NULL);
+	if (session == NULL) {
+		pr_err("Perf session creation failed.\n");
+		return -1;
+	}
+
+	init_features(session);
+
+	session->evlist   = evsel_list;
+	perf_stat.session = session;
+	perf_stat.record  = true;
+	return argc;
+}
+
+static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
+				    union perf_event *event,
+				    struct perf_session *session)
+{
+	struct stat_round_event *round = &event->stat_round;
+	struct perf_evsel *counter;
+	struct timespec tsh, *ts = NULL;
+	const char **argv = session->header.env.cmdline_argv;
+	int argc = session->header.env.nr_cmdline;
+
+	evlist__for_each(evsel_list, counter)
+		perf_stat_process_counter(&stat_config, counter);
+
+	if (round->type == PERF_STAT_ROUND_TYPE__FINAL)
+		update_stats(&walltime_nsecs_stats, round->time);
+
+	if (stat_config.interval && round->time) {
+		tsh.tv_sec  = round->time / NSECS_PER_SEC;
+		tsh.tv_nsec = round->time % NSECS_PER_SEC;
+		ts = &tsh;
+	}
+
+	print_counters(ts, argc, argv);
+	return 0;
+}
+
+static
+int process_stat_config_event(struct perf_tool *tool __maybe_unused,
+			      union perf_event *event,
+			      struct perf_session *session __maybe_unused)
+{
+	struct perf_stat *st = container_of(tool, struct perf_stat, tool);
+
+	perf_event__read_stat_config(&stat_config, &event->stat_config);
+
+	if (cpu_map__empty(st->cpus)) {
+		if (st->aggr_mode != AGGR_UNSET)
+			pr_warning("warning: processing task data, aggregation mode not set\n");
+		return 0;
+	}
+
+	if (st->aggr_mode != AGGR_UNSET)
+		stat_config.aggr_mode = st->aggr_mode;
+
+	if (perf_stat.file.is_pipe)
+		perf_stat_init_aggr_mode();
+	else
+		perf_stat_init_aggr_mode_file(st);
+
+	return 0;
+}
+
+static int set_maps(struct perf_stat *st)
+{
+	if (!st->cpus || !st->threads)
+		return 0;
+
+	if (WARN_ONCE(st->maps_allocated, "stats double allocation\n"))
+		return -EINVAL;
+
+	perf_evlist__set_maps(evsel_list, st->cpus, st->threads);
+
+	if (perf_evlist__alloc_stats(evsel_list, true))
+		return -ENOMEM;
+
+	st->maps_allocated = true;
+	return 0;
+}
+
+static
+int process_thread_map_event(struct perf_tool *tool __maybe_unused,
+			     union perf_event *event,
+			     struct perf_session *session __maybe_unused)
+{
+	struct perf_stat *st = container_of(tool, struct perf_stat, tool);
+
+	if (st->threads) {
+		pr_warning("Extra thread map event, ignoring.\n");
+		return 0;
+	}
+
+	st->threads = thread_map__new_event(&event->thread_map);
+	if (!st->threads)
+		return -ENOMEM;
+
+	return set_maps(st);
+}
+
+static
+int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
+			  union perf_event *event,
+			  struct perf_session *session __maybe_unused)
+{
+	struct perf_stat *st = container_of(tool, struct perf_stat, tool);
+	struct cpu_map *cpus;
+
+	if (st->cpus) {
+		pr_warning("Extra cpu map event, ignoring.\n");
+		return 0;
+	}
+
+	cpus = cpu_map__new_data(&event->cpu_map.data);
+	if (!cpus)
+		return -ENOMEM;
+
+	st->cpus = cpus;
+	return set_maps(st);
+}
+
+static const char * const report_usage[] = {
+	"perf stat report [<options>]",
+	NULL,
+};
+
+static struct perf_stat perf_stat = {
+	.tool = {
+		.attr		= perf_event__process_attr,
+		.event_update	= perf_event__process_event_update,
+		.thread_map	= process_thread_map_event,
+		.cpu_map	= process_cpu_map_event,
+		.stat_config	= process_stat_config_event,
+		.stat		= perf_event__process_stat_event,
+		.stat_round	= process_stat_round_event,
+	},
+	.aggr_mode = AGGR_UNSET,
+};
+
+static int __cmd_report(int argc, const char **argv)
+{
+	struct perf_session *session;
+	const struct option options[] = {
+	OPT_STRING('i', "input", &input_name, "file", "input file name"),
+	OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode,
+		     "aggregate counts per processor socket", AGGR_SOCKET),
+	OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode,
+		     "aggregate counts per physical processor core", AGGR_CORE),
+	OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode,
+		     "disable CPU count aggregation", AGGR_NONE),
+	OPT_END()
+	};
+	struct stat st;
+	int ret;
+
+	argc = parse_options(argc, argv, options, report_usage, 0);
+
+	if (!input_name || !strlen(input_name)) {
+		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
+			input_name = "-";
+		else
+			input_name = "perf.data";
+	}
+
+	perf_stat.file.path = input_name;
+	perf_stat.file.mode = PERF_DATA_MODE_READ;
+
+	session = perf_session__new(&perf_stat.file, false, &perf_stat.tool);
+	if (session == NULL)
+		return -1;
+
+	perf_stat.session  = session;
+	stat_config.output = stderr;
+	evsel_list         = session->evlist;
+
+	ret = perf_session__process_events(session);
+	if (ret)
+		return ret;
+
+	perf_session__delete(session);
+	return 0;
+}
+
 int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	const char * const stat_usage[] = {
@@ -1246,6 +1817,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	const char *mode;
 	FILE *output = stderr;
 	unsigned int interval;
+	const char * const stat_subcommands[] = { "record", "report" };
 
 	setlocale(LC_ALL, "");
 
@@ -1253,12 +1825,30 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (evsel_list == NULL)
 		return -ENOMEM;
 
-	argc = parse_options(argc, argv, stat_options, stat_usage,
-		PARSE_OPT_STOP_AT_NON_OPTION);
+	argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands,
+					(const char **) stat_usage,
+					PARSE_OPT_STOP_AT_NON_OPTION);
+
+	if (csv_sep) {
+		csv_output = true;
+		if (!strcmp(csv_sep, "\\t"))
+			csv_sep = "\t";
+	} else
+		csv_sep = DEFAULT_SEPARATOR;
+
+	if (argc && !strncmp(argv[0], "rec", 3)) {
+		argc = __cmd_record(argc, argv);
+		if (argc < 0)
+			return -1;
+	} else if (argc && !strncmp(argv[0], "rep", 3))
+		return __cmd_report(argc, argv);
 
 	interval = stat_config.interval;
 
-	if (output_name && strcmp(output_name, "-"))
+	/*
+	 * For record command the -o is already taken care of.
+	 */
+	if (!STAT_RECORD && output_name && strcmp(output_name, "-"))
 		output = NULL;
 
 	if (output_name && output_fd) {
@@ -1296,13 +1886,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	stat_config.output = output;
 
-	if (csv_sep) {
-		csv_output = true;
-		if (!strcmp(csv_sep, "\\t"))
-			csv_sep = "\t";
-	} else
-		csv_sep = DEFAULT_SEPARATOR;
-
 	/*
 	 * let the spreadsheet do the pretty-printing
 	 */
@@ -1425,6 +2008,42 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (!forever && status != -1 && !interval)
 		print_counters(NULL, argc, argv);
 
+	if (STAT_RECORD) {
+		/*
+		 * We synthesize the kernel mmap record just so that older tools
+		 * don't emit warnings about not being able to resolve symbols
+		 * due to /proc/sys/kernel/kptr_restrict settings and instear provide
+		 * a saner message about no samples being in the perf.data file.
+		 *
+		 * This also serves to suppress a warning about f_header.data.size == 0
+		 * in header.c at the moment 'perf stat record' gets introduced, which
+		 * is not really needed once we start adding the stat specific PERF_RECORD_
+		 * records, but the need to suppress the kptr_restrict messages in older
+		 * tools remain  -acme
+		 */
+		int fd = perf_data_file__fd(&perf_stat.file);
+		int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat,
+							     process_synthesized_event,
+							     &perf_stat.session->machines.host);
+		if (err) {
+			pr_warning("Couldn't synthesize the kernel mmap record, harmless, "
+				   "older tools may produce warnings about this file\n.");
+		}
+
+		if (!interval) {
+			if (WRITE_STAT_ROUND_EVENT(walltime_nsecs_stats.max, FINAL))
+				pr_err("failed to write stat round event\n");
+		}
+
+		if (!perf_stat.file.is_pipe) {
+			perf_stat.session->header.data_size += perf_stat.bytes_written;
+			perf_session__write_header(perf_stat.session, evsel_list, fd, true);
+		}
+
+		perf_session__delete(perf_stat.session);
+	}
+
+	perf_stat__exit_aggr_mode();
 	perf_evlist__free_stats(evsel_list);
 out:
 	perf_evlist__delete(evsel_list);
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 30e59620179d..bd7a7757176f 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -30,7 +30,7 @@
 
 #include "perf.h"
 #include "util/header.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 #include "util/event.h"
 #include "util/session.h"
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 7e2e72e6d9d1..bf01cbb0ef23 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -34,7 +34,7 @@
 #include "util/top.h"
 #include "util/util.h"
 #include <linux/rbtree.h>
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 #include "util/cpumap.h"
 #include "util/xyarray.h"
@@ -175,42 +175,40 @@ static void perf_top__record_precise_ip(struct perf_top *top,
 					int counter, u64 ip)
 {
 	struct annotation *notes;
-	struct symbol *sym;
+	struct symbol *sym = he->ms.sym;
 	int err = 0;
 
-	if (he == NULL || he->ms.sym == NULL ||
-	    ((top->sym_filter_entry == NULL ||
-	      top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1))
+	if (sym == NULL || (use_browser == 0 &&
+			    (top->sym_filter_entry == NULL ||
+			     top->sym_filter_entry->ms.sym != sym)))
 		return;
 
-	sym = he->ms.sym;
 	notes = symbol__annotation(sym);
 
 	if (pthread_mutex_trylock(&notes->lock))
 		return;
 
-	ip = he->ms.map->map_ip(he->ms.map, ip);
-
-	if (ui__has_annotation())
-		err = hist_entry__inc_addr_samples(he, counter, ip);
+	err = hist_entry__inc_addr_samples(he, counter, ip);
 
 	pthread_mutex_unlock(&notes->lock);
 
-	/*
-	 * This function is now called with he->hists->lock held.
-	 * Release it before going to sleep.
-	 */
-	pthread_mutex_unlock(&he->hists->lock);
+	if (unlikely(err)) {
+		/*
+		 * This function is now called with he->hists->lock held.
+		 * Release it before going to sleep.
+		 */
+		pthread_mutex_unlock(&he->hists->lock);
+
+		if (err == -ERANGE && !he->ms.map->erange_warned)
+			ui__warn_map_erange(he->ms.map, sym, ip);
+		else if (err == -ENOMEM) {
+			pr_err("Not enough memory for annotating '%s' symbol!\n",
+			       sym->name);
+			sleep(1);
+		}
 
-	if (err == -ERANGE && !he->ms.map->erange_warned)
-		ui__warn_map_erange(he->ms.map, sym, ip);
-	else if (err == -ENOMEM) {
-		pr_err("Not enough memory for annotating '%s' symbol!\n",
-		       sym->name);
-		sleep(1);
+		pthread_mutex_lock(&he->hists->lock);
 	}
-
-	pthread_mutex_lock(&he->hists->lock);
 }
 
 static void perf_top__show_details(struct perf_top *top)
@@ -687,14 +685,8 @@ static int hist_iter__top_callback(struct hist_entry_iter *iter,
 	struct hist_entry *he = iter->he;
 	struct perf_evsel *evsel = iter->evsel;
 
-	if (sort__has_sym && single) {
-		u64 ip = al->addr;
-
-		if (al->map)
-			ip = al->map->unmap_ip(al->map, ip);
-
-		perf_top__record_precise_ip(top, he, evsel->idx, ip);
-	}
+	if (sort__has_sym && single)
+		perf_top__record_precise_ip(top, he, evsel->idx, al->addr);
 
 	hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
 		     !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY));
@@ -964,7 +956,7 @@ static int __cmd_top(struct perf_top *top)
 	if (ret)
 		goto out_delete;
 
-	if (perf_session__register_idle_thread(top->session) == NULL)
+	if (perf_session__register_idle_thread(top->session) < 0)
 		goto out_delete;
 
 	machine__synthesize_threads(&top->session->machines.host, &opts->target,
@@ -1218,6 +1210,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_CALLBACK('j', "branch-filter", &opts->branch_stack,
 		     "branch filter mask", "branch stack filter modes",
 		     parse_branch_stack),
+	OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
+		    "Show raw trace event output (do not use print fmt or plugins)"),
 	OPT_END()
 	};
 	const char * const top_usage[] = {
@@ -1239,11 +1233,17 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (argc)
 		usage_with_options(top_usage, options);
 
+	if (!top.evlist->nr_entries &&
+	    perf_evlist__add_default(top.evlist) < 0) {
+		pr_err("Not enough memory for event selector list\n");
+		goto out_delete_evlist;
+	}
+
 	sort__mode = SORT_MODE__TOP;
 	/* display thread wants entries to be collapsed in a different tree */
 	sort__need_collapse = 1;
 
-	if (setup_sorting() < 0) {
+	if (setup_sorting(top.evlist) < 0) {
 		if (sort_order)
 			parse_options_usage(top_usage, options, "s", 1);
 		if (field_order)
@@ -1279,12 +1279,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (target__none(target))
 		target->system_wide = true;
 
-	if (perf_evlist__create_maps(top.evlist, target) < 0)
-		usage_with_options(top_usage, options);
-
-	if (!top.evlist->nr_entries &&
-	    perf_evlist__add_default(top.evlist) < 0) {
-		ui__error("Not enough memory for event selector list\n");
+	if (perf_evlist__create_maps(top.evlist, target) < 0) {
+		ui__error("Couldn't create thread/CPU maps: %s\n",
+			  errno == ENOENT ? "No such process" : strerror_r(errno, errbuf, sizeof(errbuf)));
 		goto out_delete_evlist;
 	}
 
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c783d8fd3a80..20916dd77aac 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -22,11 +22,11 @@
 #include "util/color.h"
 #include "util/debug.h"
 #include "util/evlist.h"
-#include "util/exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "util/machine.h"
 #include "util/session.h"
 #include "util/thread.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/strlist.h"
 #include "util/intlist.h"
 #include "util/thread_map.h"
diff --git a/tools/perf/builtin-version.c b/tools/perf/builtin-version.c
new file mode 100644
index 000000000000..9b10cda6b6dc
--- /dev/null
+++ b/tools/perf/builtin-version.c
@@ -0,0 +1,10 @@
+#include "util/util.h"
+#include "builtin.h"
+#include "perf.h"
+
+int cmd_version(int argc __maybe_unused, const char **argv __maybe_unused,
+		const char *prefix __maybe_unused)
+{
+	printf("perf version %s\n", perf_version_string);
+	return 0;
+}
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index 3688ad29085f..3f871b54e261 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -17,6 +17,7 @@ extern int cmd_annotate(int argc, const char **argv, const char *prefix);
 extern int cmd_bench(int argc, const char **argv, const char *prefix);
 extern int cmd_buildid_cache(int argc, const char **argv, const char *prefix);
 extern int cmd_buildid_list(int argc, const char **argv, const char *prefix);
+extern int cmd_config(int argc, const char **argv, const char *prefix);
 extern int cmd_diff(int argc, const char **argv, const char *prefix);
 extern int cmd_evlist(int argc, const char **argv, const char *prefix);
 extern int cmd_help(int argc, const char **argv, const char *prefix);
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index 00fcaf8a5b8d..ab5cbaa170d0 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -9,6 +9,7 @@ perf-buildid-cache		mainporcelain common
 perf-buildid-list		mainporcelain common
 perf-data			mainporcelain common
 perf-diff			mainporcelain common
+perf-config			mainporcelain common
 perf-evlist			mainporcelain common
 perf-inject			mainporcelain common
 perf-kmem			mainporcelain common
@@ -25,4 +26,4 @@ perf-stat			mainporcelain common
 perf-test			mainporcelain common
 perf-timechart			mainporcelain common
 perf-top			mainporcelain common
-perf-trace			mainporcelain common
+perf-trace			mainporcelain audit
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index de89ec574361..254d06e39bea 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -135,8 +135,6 @@ endif
 
 ifeq ($(DEBUG),0)
   CFLAGS += -O6
-else
-  CFLAGS += $(call cc-option,-Og,-O0)
 endif
 
 ifdef PARSER_DEBUG
@@ -318,6 +316,18 @@ ifndef NO_LIBELF
       CFLAGS += -DHAVE_LIBBPF_SUPPORT
       $(call detected,CONFIG_LIBBPF)
     endif
+
+    ifndef NO_DWARF
+      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
+        CFLAGS += -DHAVE_BPF_PROLOGUE
+        $(call detected,CONFIG_BPF_PROLOGUE)
+      else
+        msg := $(warning BPF prologue is not supported by architecture $(ARCH), missing regs_query_register_offset());
+      endif
+    else
+      msg := $(warning DWARF support is off, BPF prologue is disabled);
+    endif
+
   endif # NO_LIBBPF
 endif # NO_LIBELF
 
@@ -681,6 +691,7 @@ sharedir = $(prefix)/share
 template_dir = share/perf-core/templates
 STRACE_GROUPS_DIR = share/perf-core/strace/groups
 htmldir = share/doc/perf-doc
+tipdir = share/doc/perf-tip
 ifeq ($(prefix),/usr)
 sysconfdir = /etc
 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
@@ -707,6 +718,7 @@ infodir_SQ = $(subst ','\'',$(infodir))
 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
 template_dir_SQ = $(subst ','\'',$(template_dir))
 htmldir_SQ = $(subst ','\'',$(htmldir))
+tipdir_SQ = $(subst ','\'',$(tipdir))
 prefix_SQ = $(subst ','\'',$(prefix))
 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
 libdir_SQ = $(subst ','\'',$(libdir))
@@ -714,12 +726,15 @@ libdir_SQ = $(subst ','\'',$(libdir))
 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 perfexec_instdir = $(perfexecdir)
 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
+tip_instdir = $(tipdir)
 else
 perfexec_instdir = $(prefix)/$(perfexecdir)
 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
+tip_instdir = $(prefix)/$(tipdir)
 endif
 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
+tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
 
 # If we install to $(HOME) we keep the traceevent default:
 # $(HOME)/.traceevent/plugins
@@ -741,6 +756,10 @@ ifeq ($(VF),1)
   $(call print_var,sysconfdir)
   $(call print_var,LIBUNWIND_DIR)
   $(call print_var,LIBDW_DIR)
+
+  ifeq ($(dwarf-post-unwind),1)
+    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
+  endif
   $(info )
 endif
 
@@ -756,6 +775,7 @@ $(call detected_var,ETC_PERFCONFIG_SQ)
 $(call detected_var,STRACE_GROUPS_DIR_SQ)
 $(call detected_var,prefix_SQ)
 $(call detected_var,perfexecdir_SQ)
+$(call detected_var,tipdir_SQ)
 $(call detected_var,LIBDIR)
 $(call detected_var,GTK_CFLAGS)
 $(call detected_var,PERL_EMBED_CCOPTS)
diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 0ebef09c0842..c16ce833079c 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -177,22 +177,3 @@ $(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2)))
 endef
 _ge_attempt = $(if $(get-executable),$(get-executable),$(call _gea_err,$(2)))
 _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
-
-# try-run
-# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
-# Exit code chooses option. "$$TMP" is can be used as temporary file and
-# is automatically cleaned up.
-try-run = $(shell set -e;		\
-	TMP="$(TMPOUT).$$$$.tmp";	\
-	TMPO="$(TMPOUT).$$$$.o";	\
-	if ($(1)) >/dev/null 2>&1;	\
-	then echo "$(2)";		\
-	else echo "$(3)";		\
-	fi;				\
-	rm -f "$$TMP" "$$TMPO")
-
-# cc-option
-# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
-
-cc-option = $(call try-run,\
-	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 3d4c7c09adea..a929618b8eb6 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -9,16 +9,18 @@
 #include "builtin.h"
 
 #include "util/env.h"
-#include "util/exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "util/cache.h"
 #include "util/quote.h"
-#include "util/run-command.h"
+#include <subcmd/run-command.h>
 #include "util/parse-events.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/bpf-loader.h"
 #include "util/debug.h"
 #include <api/fs/tracing_path.h>
 #include <pthread.h>
+#include <stdlib.h>
+#include <time.h>
 
 const char perf_usage_string[] =
 	"perf [--version] [--help] [OPTIONS] COMMAND [ARGS]";
@@ -39,6 +41,7 @@ struct cmd_struct {
 static struct cmd_struct commands[] = {
 	{ "buildid-cache", cmd_buildid_cache, 0 },
 	{ "buildid-list", cmd_buildid_list, 0 },
+	{ "config",	cmd_config,	0 },
 	{ "diff",	cmd_diff,	0 },
 	{ "evlist",	cmd_evlist,	0 },
 	{ "help",	cmd_help,	0 },
@@ -118,7 +121,7 @@ static void commit_pager_choice(void)
 {
 	switch (use_pager) {
 	case 0:
-		setenv("PERF_PAGER", "cat", 1);
+		setenv(PERF_PAGER_ENVIRONMENT, "cat", 1);
 		break;
 	case 1:
 		/* setup_pager(); */
@@ -182,9 +185,9 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
 		if (!prefixcmp(cmd, CMD_EXEC_PATH)) {
 			cmd += strlen(CMD_EXEC_PATH);
 			if (*cmd == '=')
-				perf_set_argv_exec_path(cmd + 1);
+				set_argv_exec_path(cmd + 1);
 			else {
-				puts(perf_exec_path());
+				puts(get_argv_exec_path());
 				exit(0);
 			}
 		} else if (!strcmp(cmd, "--html-path")) {
@@ -383,6 +386,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 		use_pager = 1;
 	commit_pager_choice();
 
+	perf_env__set_cmdline(&perf_env, argc, argv);
 	status = p->fn(argc, argv, prefix);
 	exit_browser(status);
 	perf_env__exit(&perf_env);
@@ -528,14 +532,20 @@ int main(int argc, const char **argv)
 	const char *cmd;
 	char sbuf[STRERR_BUFSIZE];
 
+	/* libsubcmd init */
+	exec_cmd_init("perf", PREFIX, PERF_EXEC_PATH, EXEC_PATH_ENVIRONMENT);
+	pager_init(PERF_PAGER_ENVIRONMENT);
+
 	/* The page_size is placed in util object. */
 	page_size = sysconf(_SC_PAGE_SIZE);
 	cacheline_size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
 
-	cmd = perf_extract_argv0_path(argv[0]);
+	cmd = extract_argv0_path(argv[0]);
 	if (!cmd)
 		cmd = "perf-help";
 
+	srandom(time(NULL));
+
 	/* get debugfs/tracefs mount point from /proc/mounts */
 	tracing_path_mount();
 
diff --git a/tools/perf/scripts/python/stat-cpi.py b/tools/perf/scripts/python/stat-cpi.py
new file mode 100644
index 000000000000..8b60f343dd07
--- /dev/null
+++ b/tools/perf/scripts/python/stat-cpi.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+
+data    = {}
+times   = []
+threads = []
+cpus    = []
+
+def get_key(time, event, cpu, thread):
+    return "%d-%s-%d-%d" % (time, event, cpu, thread)
+
+def store_key(time, cpu, thread):
+    if (time not in times):
+        times.append(time)
+
+    if (cpu not in cpus):
+        cpus.append(cpu)
+
+    if (thread not in threads):
+        threads.append(thread)
+
+def store(time, event, cpu, thread, val, ena, run):
+    #print "event %s cpu %d, thread %d, time %d, val %d, ena %d, run %d" % \
+    #      (event, cpu, thread, time, val, ena, run)
+
+    store_key(time, cpu, thread)
+    key = get_key(time, event, cpu, thread)
+    data[key] = [ val, ena, run]
+
+def get(time, event, cpu, thread):
+    key = get_key(time, event, cpu, thread)
+    return data[key][0]
+
+def stat__cycles_k(cpu, thread, time, val, ena, run):
+    store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions_k(cpu, thread, time, val, ena, run):
+    store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__cycles_u(cpu, thread, time, val, ena, run):
+    store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions_u(cpu, thread, time, val, ena, run):
+    store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__cycles(cpu, thread, time, val, ena, run):
+    store(time, "cycles", cpu, thread, val, ena, run);
+
+def stat__instructions(cpu, thread, time, val, ena, run):
+    store(time, "instructions", cpu, thread, val, ena, run);
+
+def stat__interval(time):
+    for cpu in cpus:
+        for thread in threads:
+            cyc = get(time, "cycles", cpu, thread)
+            ins = get(time, "instructions", cpu, thread)
+            cpi = 0
+
+            if ins != 0:
+                cpi = cyc/float(ins)
+
+            print "%15f: cpu %d, thread %d -> cpi %f (%d/%d)" % (time/(float(1000000000)), cpu, thread, cpi, cyc, ins)
+
+def trace_end():
+    pass
+# XXX trace_end callback could be used as an alternative place
+#     to compute same values as in the script above:
+#
+#    for time in times:
+#        for cpu in cpus:
+#            for thread in threads:
+#                cyc = get(time, "cycles", cpu, thread)
+#                ins = get(time, "instructions", cpu, thread)
+#
+#                if ins != 0:
+#                    cpi = cyc/float(ins)
+#
+#                print "time %.9f, cpu %d, thread %d -> cpi %f" % (time/(float(1000000000)), cpu, thread, cpi)
diff --git a/tools/perf/tests/.gitignore b/tools/perf/tests/.gitignore
index 489fc9ffbcb0..bf016c439fbd 100644
--- a/tools/perf/tests/.gitignore
+++ b/tools/perf/tests/.gitignore
@@ -1,2 +1,3 @@
 llvm-src-base.c
 llvm-src-kbuild.c
+llvm-src-prologue.c
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index f41ebf8849fe..614899b88b37 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -31,24 +31,34 @@ perf-y += sample-parsing.o
 perf-y += parse-no-sample-id-all.o
 perf-y += kmod-path.o
 perf-y += thread-map.o
-perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o
+perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o llvm-src-prologue.o
 perf-y += bpf.o
 perf-y += topology.o
+perf-y += cpumap.o
+perf-y += stat.o
+perf-y += event_update.o
 
-$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c
+$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
 	$(call rule_mkdir)
 	$(Q)echo '#include <tests/llvm.h>' > $@
 	$(Q)echo 'const char test_llvm__bpf_base_prog[] =' >> $@
 	$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
 	$(Q)echo ';' >> $@
 
-$(OUTPUT)tests/llvm-src-kbuild.c: tests/bpf-script-test-kbuild.c
+$(OUTPUT)tests/llvm-src-kbuild.c: tests/bpf-script-test-kbuild.c tests/Build
 	$(call rule_mkdir)
 	$(Q)echo '#include <tests/llvm.h>' > $@
 	$(Q)echo 'const char test_llvm__bpf_test_kbuild_prog[] =' >> $@
 	$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
 	$(Q)echo ';' >> $@
 
+$(OUTPUT)tests/llvm-src-prologue.c: tests/bpf-script-test-prologue.c tests/Build
+	$(call rule_mkdir)
+	$(Q)echo '#include <tests/llvm.h>' > $@
+	$(Q)echo 'const char test_llvm__bpf_test_prologue_prog[] =' >> $@
+	$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
+	$(Q)echo ';' >> $@
+
 ifeq ($(ARCH),$(filter $(ARCH),x86 arm arm64))
 perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 endif
diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c
index 638875a0960a..28d1605b0338 100644
--- a/tools/perf/tests/attr.c
+++ b/tools/perf/tests/attr.c
@@ -24,7 +24,7 @@
 #include <linux/kernel.h>
 #include "../perf.h"
 #include "util.h"
-#include "exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "tests.h"
 
 #define ENV "PERF_TEST_ATTR"
@@ -153,7 +153,7 @@ static int run_dir(const char *d, const char *perf)
 	return system(cmd);
 }
 
-int test__attr(void)
+int test__attr(int subtest __maybe_unused)
 {
 	struct stat st;
 	char path_perf[PATH_MAX];
@@ -164,7 +164,7 @@ int test__attr(void)
 		return run_dir("./tests", "./perf");
 
 	/* Then installed path. */
-	snprintf(path_dir,  PATH_MAX, "%s/tests", perf_exec_path());
+	snprintf(path_dir,  PATH_MAX, "%s/tests", get_argv_exec_path());
 	snprintf(path_perf, PATH_MAX, "%s/perf", BINDIR);
 
 	if (!lstat(path_dir, &st) &&
diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
index a02b035fd5aa..fb80c9eb6a95 100644
--- a/tools/perf/tests/bp_signal.c
+++ b/tools/perf/tests/bp_signal.c
@@ -111,7 +111,7 @@ static long long bp_count(int fd)
 	return count;
 }
 
-int test__bp_signal(void)
+int test__bp_signal(int subtest __maybe_unused)
 {
 	struct sigaction sa;
 	long long count1, count2;
diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c
index e76537724491..89f92fa67cc4 100644
--- a/tools/perf/tests/bp_signal_overflow.c
+++ b/tools/perf/tests/bp_signal_overflow.c
@@ -58,7 +58,7 @@ static long long bp_count(int fd)
 #define EXECUTIONS 10000
 #define THRESHOLD  100
 
-int test__bp_signal_overflow(void)
+int test__bp_signal_overflow(int subtest __maybe_unused)
 {
 	struct perf_event_attr pe;
 	struct sigaction sa;
diff --git a/tools/perf/tests/bpf-script-test-prologue.c b/tools/perf/tests/bpf-script-test-prologue.c
new file mode 100644
index 000000000000..7230e62c70fc
--- /dev/null
+++ b/tools/perf/tests/bpf-script-test-prologue.c
@@ -0,0 +1,35 @@
+/*
+ * bpf-script-test-prologue.c
+ * Test BPF prologue
+ */
+#ifndef LINUX_VERSION_CODE
+# error Need LINUX_VERSION_CODE
+# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig'
+#endif
+#define SEC(NAME) __attribute__((section(NAME), used))
+
+#include <uapi/linux/fs.h>
+
+#define FMODE_READ		0x1
+#define FMODE_WRITE		0x2
+
+static void (*bpf_trace_printk)(const char *fmt, int fmt_size, ...) =
+	(void *) 6;
+
+SEC("func=null_lseek file->f_mode offset orig")
+int bpf_func__null_lseek(void *ctx, int err, unsigned long f_mode,
+			 unsigned long offset, unsigned long orig)
+{
+	if (err)
+		return 0;
+	if (f_mode & FMODE_WRITE)
+		return 0;
+	if (offset & 1)
+		return 0;
+	if (orig == SEEK_CUR)
+		return 0;
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
+int _version SEC("version") = LINUX_VERSION_CODE;
diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index ec16f7812c8b..33689a0cf821 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -19,6 +19,29 @@ static int epoll_pwait_loop(void)
 	return 0;
 }
 
+#ifdef HAVE_BPF_PROLOGUE
+
+static int llseek_loop(void)
+{
+	int fds[2], i;
+
+	fds[0] = open("/dev/null", O_RDONLY);
+	fds[1] = open("/dev/null", O_RDWR);
+
+	if (fds[0] < 0 || fds[1] < 0)
+		return -1;
+
+	for (i = 0; i < NR_ITERS; i++) {
+		lseek(fds[i % 2], i, (i / 2) % 2 ? SEEK_CUR : SEEK_SET);
+		lseek(fds[(i + 1) % 2], i, (i / 2) % 2 ? SEEK_CUR : SEEK_SET);
+	}
+	close(fds[0]);
+	close(fds[1]);
+	return 0;
+}
+
+#endif
+
 static struct {
 	enum test_llvm__testcase prog_id;
 	const char *desc;
@@ -37,6 +60,17 @@ static struct {
 		&epoll_pwait_loop,
 		(NR_ITERS + 1) / 2,
 	},
+#ifdef HAVE_BPF_PROLOGUE
+	{
+		LLVM_TESTCASE_BPF_PROLOGUE,
+		"Test BPF prologue generation",
+		"[bpf_prologue_test]",
+		"fix kbuild first",
+		"check your vmlinux setting?",
+		&llseek_loop,
+		(NR_ITERS + 1) / 4,
+	},
+#endif
 };
 
 static int do_test(struct bpf_object *obj, int (*func)(void),
@@ -68,8 +102,7 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
 	err = parse_events_load_bpf_obj(&parse_evlist, &parse_evlist.list, obj);
 	if (err || list_empty(&parse_evlist.list)) {
 		pr_debug("Failed to add events selected by BPF\n");
-		if (!err)
-			return TEST_FAIL;
+		return TEST_FAIL;
 	}
 
 	snprintf(pid, sizeof(pid), "%d", getpid());
@@ -123,8 +156,10 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
 		}
 	}
 
-	if (count != expect)
+	if (count != expect) {
 		pr_debug("BPF filter result incorrect\n");
+		goto out_delete_evlist;
+	}
 
 	ret = TEST_OK;
 
@@ -146,7 +181,7 @@ prepare_bpf(void *obj_buf, size_t obj_buf_sz, const char *name)
 	return obj;
 }
 
-static int __test__bpf(int index)
+static int __test__bpf(int idx)
 {
 	int ret;
 	void *obj_buf;
@@ -154,54 +189,72 @@ static int __test__bpf(int index)
 	struct bpf_object *obj;
 
 	ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
-				       bpf_testcase_table[index].prog_id,
+				       bpf_testcase_table[idx].prog_id,
 				       true);
 	if (ret != TEST_OK || !obj_buf || !obj_buf_sz) {
 		pr_debug("Unable to get BPF object, %s\n",
-			 bpf_testcase_table[index].msg_compile_fail);
-		if (index == 0)
+			 bpf_testcase_table[idx].msg_compile_fail);
+		if (idx == 0)
 			return TEST_SKIP;
 		else
 			return TEST_FAIL;
 	}
 
 	obj = prepare_bpf(obj_buf, obj_buf_sz,
-			  bpf_testcase_table[index].name);
+			  bpf_testcase_table[idx].name);
 	if (!obj) {
 		ret = TEST_FAIL;
 		goto out;
 	}
 
 	ret = do_test(obj,
-		      bpf_testcase_table[index].target_func,
-		      bpf_testcase_table[index].expect_result);
+		      bpf_testcase_table[idx].target_func,
+		      bpf_testcase_table[idx].expect_result);
 out:
 	bpf__clear();
 	return ret;
 }
 
-int test__bpf(void)
+int test__bpf_subtest_get_nr(void)
+{
+	return (int)ARRAY_SIZE(bpf_testcase_table);
+}
+
+const char *test__bpf_subtest_get_desc(int i)
+{
+	if (i < 0 || i >= (int)ARRAY_SIZE(bpf_testcase_table))
+		return NULL;
+	return bpf_testcase_table[i].desc;
+}
+
+int test__bpf(int i)
 {
-	unsigned int i;
 	int err;
 
+	if (i < 0 || i >= (int)ARRAY_SIZE(bpf_testcase_table))
+		return TEST_FAIL;
+
 	if (geteuid() != 0) {
 		pr_debug("Only root can run BPF test\n");
 		return TEST_SKIP;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(bpf_testcase_table); i++) {
-		err = __test__bpf(i);
+	err = __test__bpf(i);
+	return err;
+}
 
-		if (err != TEST_OK)
-			return err;
-	}
+#else
+int test__bpf_subtest_get_nr(void)
+{
+	return 0;
+}
 
-	return TEST_OK;
+const char *test__bpf_subtest_get_desc(int i __maybe_unused)
+{
+	return NULL;
 }
 
-#else
-int test__bpf(void)
+int test__bpf(int i __maybe_unused)
 {
 	pr_debug("Skip BPF test because BPF support is not compiled\n");
 	return TEST_SKIP;
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 80c442eab767..f2b1dcac45d3 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -11,7 +11,7 @@
 #include "tests.h"
 #include "debug.h"
 #include "color.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 #include "symbol.h"
 
 struct test __weak arch_tests[] = {
@@ -160,6 +160,11 @@ static struct test generic_tests[] = {
 	{
 		.desc = "Test LLVM searching and compiling",
 		.func = test__llvm,
+		.subtest = {
+			.skip_if_fail	= true,
+			.get_nr		= test__llvm_subtest_get_nr,
+			.get_desc	= test__llvm_subtest_get_desc,
+		},
 	},
 	{
 		.desc = "Test topology in session",
@@ -168,6 +173,35 @@ static struct test generic_tests[] = {
 	{
 		.desc = "Test BPF filter",
 		.func = test__bpf,
+		.subtest = {
+			.skip_if_fail	= true,
+			.get_nr		= test__bpf_subtest_get_nr,
+			.get_desc	= test__bpf_subtest_get_desc,
+		},
+	},
+	{
+		.desc = "Test thread map synthesize",
+		.func = test__thread_map_synthesize,
+	},
+	{
+		.desc = "Test cpu map synthesize",
+		.func = test__cpu_map_synthesize,
+	},
+	{
+		.desc = "Test stat config synthesize",
+		.func = test__synthesize_stat_config,
+	},
+	{
+		.desc = "Test stat synthesize",
+		.func = test__synthesize_stat,
+	},
+	{
+		.desc = "Test stat round synthesize",
+		.func = test__synthesize_stat_round,
+	},
+	{
+		.desc = "Test attr update synthesize",
+		.func = test__event_update,
 	},
 	{
 		.func = NULL,
@@ -203,7 +237,7 @@ static bool perf_test__matches(struct test *test, int curr, int argc, const char
 	return false;
 }
 
-static int run_test(struct test *test)
+static int run_test(struct test *test, int subtest)
 {
 	int status, err = -1, child = fork();
 	char sbuf[STRERR_BUFSIZE];
@@ -216,7 +250,22 @@ static int run_test(struct test *test)
 
 	if (!child) {
 		pr_debug("test child forked, pid %d\n", getpid());
-		err = test->func();
+		if (!verbose) {
+			int nullfd = open("/dev/null", O_WRONLY);
+			if (nullfd >= 0) {
+				close(STDERR_FILENO);
+				close(STDOUT_FILENO);
+
+				dup2(nullfd, STDOUT_FILENO);
+				dup2(STDOUT_FILENO, STDERR_FILENO);
+				close(nullfd);
+			}
+		} else {
+			signal(SIGSEGV, sighandler_dump_stack);
+			signal(SIGFPE, sighandler_dump_stack);
+		}
+
+		err = test->func(subtest);
 		exit(err);
 	}
 
@@ -237,6 +286,40 @@ static int run_test(struct test *test)
 	for (j = 0; j < ARRAY_SIZE(tests); j++)	\
 		for (t = &tests[j][0]; t->func; t++)
 
+static int test_and_print(struct test *t, bool force_skip, int subtest)
+{
+	int err;
+
+	if (!force_skip) {
+		pr_debug("\n--- start ---\n");
+		err = run_test(t, subtest);
+		pr_debug("---- end ----\n");
+	} else {
+		pr_debug("\n--- force skipped ---\n");
+		err = TEST_SKIP;
+	}
+
+	if (!t->subtest.get_nr)
+		pr_debug("%s:", t->desc);
+	else
+		pr_debug("%s subtest %d:", t->desc, subtest);
+
+	switch (err) {
+	case TEST_OK:
+		pr_info(" Ok\n");
+		break;
+	case TEST_SKIP:
+		color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
+		break;
+	case TEST_FAIL:
+	default:
+		color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
+		break;
+	}
+
+	return err;
+}
+
 static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 {
 	struct test *t;
@@ -264,21 +347,43 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 			continue;
 		}
 
-		pr_debug("\n--- start ---\n");
-		err = run_test(t);
-		pr_debug("---- end ----\n%s:", t->desc);
-
-		switch (err) {
-		case TEST_OK:
-			pr_info(" Ok\n");
-			break;
-		case TEST_SKIP:
-			color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
-			break;
-		case TEST_FAIL:
-		default:
-			color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
-			break;
+		if (!t->subtest.get_nr) {
+			test_and_print(t, false, -1);
+		} else {
+			int subn = t->subtest.get_nr();
+			/*
+			 * minus 2 to align with normal testcases.
+			 * For subtest we print additional '.x' in number.
+			 * for example:
+			 *
+			 * 35: Test LLVM searching and compiling                        :
+			 * 35.1: Basic BPF llvm compiling test                          : Ok
+			 */
+			int subw = width > 2 ? width - 2 : width;
+			bool skip = false;
+			int subi;
+
+			if (subn <= 0) {
+				color_fprintf(stderr, PERF_COLOR_YELLOW,
+					      " Skip (not compiled in)\n");
+				continue;
+			}
+			pr_info("\n");
+
+			for (subi = 0; subi < subn; subi++) {
+				int len = strlen(t->subtest.get_desc(subi));
+
+				if (subw < len)
+					subw = len;
+			}
+
+			for (subi = 0; subi < subn; subi++) {
+				pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
+					t->subtest.get_desc(subi));
+				err = test_and_print(t, skip, subi);
+				if (err != TEST_OK && t->subtest.skip_if_fail)
+					skip = true;
+			}
 		}
 	}
 
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index a767a6400c5c..313a48c6b2bc 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -433,7 +433,6 @@ enum {
 
 static int do_test_code_reading(bool try_kcore)
 {
-	struct machines machines;
 	struct machine *machine;
 	struct thread *thread;
 	struct record_opts opts = {
@@ -459,8 +458,7 @@ static int do_test_code_reading(bool try_kcore)
 
 	pid = getpid();
 
-	machines__init(&machines);
-	machine = &machines.host;
+	machine = machine__new_host();
 
 	ret = machine__create_kernel_maps(machine);
 	if (ret < 0) {
@@ -549,6 +547,13 @@ static int do_test_code_reading(bool try_kcore)
 		if (ret < 0) {
 			if (!excl_kernel) {
 				excl_kernel = true;
+				/*
+				 * Both cpus and threads are now owned by evlist
+				 * and will be freed by following perf_evlist__set_maps
+				 * call. Getting refference to keep them alive.
+				 */
+				cpu_map__get(cpus);
+				thread_map__get(threads);
 				perf_evlist__set_maps(evlist, NULL, NULL);
 				perf_evlist__delete(evlist);
 				evlist = NULL;
@@ -594,14 +599,13 @@ out_err:
 		cpu_map__put(cpus);
 		thread_map__put(threads);
 	}
-	machines__destroy_kernel_maps(&machines);
 	machine__delete_threads(machine);
-	machines__exit(&machines);
+	machine__delete(machine);
 
 	return err;
 }
 
-int test__code_reading(void)
+int test__code_reading(int subtest __maybe_unused)
 {
 	int ret;
 
diff --git a/tools/perf/tests/cpumap.c b/tools/perf/tests/cpumap.c
new file mode 100644
index 000000000000..4cb6418a8ffc
--- /dev/null
+++ b/tools/perf/tests/cpumap.c
@@ -0,0 +1,88 @@
+#include "tests.h"
+#include "cpumap.h"
+
+static int process_event_mask(struct perf_tool *tool __maybe_unused,
+			 union perf_event *event,
+			 struct perf_sample *sample __maybe_unused,
+			 struct machine *machine __maybe_unused)
+{
+	struct cpu_map_event *map_event = &event->cpu_map;
+	struct cpu_map_mask *mask;
+	struct cpu_map_data *data;
+	struct cpu_map *map;
+	int i;
+
+	data = &map_event->data;
+
+	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);
+
+	mask = (struct cpu_map_mask *)data->data;
+
+	TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);
+
+	for (i = 0; i < 20; i++) {
+		TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
+	}
+
+	map = cpu_map__new_data(data);
+	TEST_ASSERT_VAL("wrong nr",  map->nr == 20);
+
+	for (i = 0; i < 20; i++) {
+		TEST_ASSERT_VAL("wrong cpu", map->map[i] == i);
+	}
+
+	cpu_map__put(map);
+	return 0;
+}
+
+static int process_event_cpus(struct perf_tool *tool __maybe_unused,
+			 union perf_event *event,
+			 struct perf_sample *sample __maybe_unused,
+			 struct machine *machine __maybe_unused)
+{
+	struct cpu_map_event *map_event = &event->cpu_map;
+	struct cpu_map_entries *cpus;
+	struct cpu_map_data *data;
+	struct cpu_map *map;
+
+	data = &map_event->data;
+
+	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);
+
+	cpus = (struct cpu_map_entries *)data->data;
+
+	TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
+	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
+	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);
+
+	map = cpu_map__new_data(data);
+	TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
+	TEST_ASSERT_VAL("wrong cpu", map->map[0] == 1);
+	TEST_ASSERT_VAL("wrong cpu", map->map[1] == 256);
+	TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1);
+	cpu_map__put(map);
+	return 0;
+}
+
+
+int test__cpu_map_synthesize(int subtest __maybe_unused)
+{
+	struct cpu_map *cpus;
+
+	/* This one is better stores in mask. */
+	cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");
+
+	TEST_ASSERT_VAL("failed to synthesize map",
+		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));
+
+	cpu_map__put(cpus);
+
+	/* This one is better stores in cpu values. */
+	cpus = cpu_map__new("1,256");
+
+	TEST_ASSERT_VAL("failed to synthesize map",
+		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));
+
+	cpu_map__put(cpus);
+	return 0;
+}
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index a218aeaf56a0..dc673ff7c437 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -110,7 +110,7 @@ static int dso__data_fd(struct dso *dso, struct machine *machine)
 	return fd;
 }
 
-int test__dso_data(void)
+int test__dso_data(int subtest __maybe_unused)
 {
 	struct machine machine;
 	struct dso *dso;
@@ -245,7 +245,7 @@ static int set_fd_limit(int n)
 	return setrlimit(RLIMIT_NOFILE, &rlim);
 }
 
-int test__dso_data_cache(void)
+int test__dso_data_cache(int subtest __maybe_unused)
 {
 	struct machine machine;
 	long nr_end, nr = open_files_cnt();
@@ -302,7 +302,7 @@ int test__dso_data_cache(void)
 	return 0;
 }
 
-int test__dso_data_reopen(void)
+int test__dso_data_reopen(int subtest __maybe_unused)
 {
 	struct machine machine;
 	long nr_end, nr = open_files_cnt();
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 07221793a3ac..1c5c0221cea2 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -51,6 +51,12 @@ static int unwind_entry(struct unwind_entry *entry, void *arg)
 		"krava_1",
 		"test__dwarf_unwind"
 	};
+	/*
+	 * The funcs[MAX_STACK] array index, based on the
+	 * callchain order setup.
+	 */
+	int idx = callchain_param.order == ORDER_CALLER ?
+		  MAX_STACK - *cnt - 1 : *cnt;
 
 	if (*cnt >= MAX_STACK) {
 		pr_debug("failed: crossed the max stack value %d\n", MAX_STACK);
@@ -63,8 +69,10 @@ static int unwind_entry(struct unwind_entry *entry, void *arg)
 		return -1;
 	}
 
-	pr_debug("got: %s 0x%" PRIx64 "\n", symbol, entry->ip);
-	return strcmp((const char *) symbol, funcs[(*cnt)++]);
+	(*cnt)++;
+	pr_debug("got: %s 0x%" PRIx64 ", expecting %s\n",
+		 symbol, entry->ip, funcs[idx]);
+	return strcmp((const char *) symbol, funcs[idx]);
 }
 
 __attribute__ ((noinline))
@@ -105,8 +113,16 @@ static int compare(void *p1, void *p2)
 	/* Any possible value should be 'thread' */
 	struct thread *thread = *(struct thread **)p1;
 
-	if (global_unwind_retval == -INT_MAX)
+	if (global_unwind_retval == -INT_MAX) {
+		/* Call unwinder twice for both callchain orders. */
+		callchain_param.order = ORDER_CALLER;
+
 		global_unwind_retval = unwind_thread(thread);
+		if (!global_unwind_retval) {
+			callchain_param.order = ORDER_CALLEE;
+			global_unwind_retval = unwind_thread(thread);
+		}
+	}
 
 	return p1 - p2;
 }
@@ -142,21 +158,23 @@ static int krava_1(struct thread *thread)
 	return krava_2(thread);
 }
 
-int test__dwarf_unwind(void)
+int test__dwarf_unwind(int subtest __maybe_unused)
 {
-	struct machines machines;
 	struct machine *machine;
 	struct thread *thread;
 	int err = -1;
 
-	machines__init(&machines);
-
-	machine = machines__find(&machines, HOST_KERNEL_ID);
+	machine = machine__new_host();
 	if (!machine) {
 		pr_err("Could not get machine\n");
 		return -1;
 	}
 
+	if (machine__create_kernel_maps(machine)) {
+		pr_err("Failed to create kernel maps\n");
+		return -1;
+	}
+
 	callchain_param.record_mode = CALLCHAIN_DWARF;
 
 	if (init_live_machine(machine)) {
@@ -178,7 +196,6 @@ int test__dwarf_unwind(void)
 
  out:
 	machine__delete_threads(machine);
-	machine__exit(machine);
-	machines__exit(&machines);
+	machine__delete(machine);
 	return err;
 }
diff --git a/tools/perf/tests/event_update.c b/tools/perf/tests/event_update.c
new file mode 100644
index 000000000000..012eab5d1df1
--- /dev/null
+++ b/tools/perf/tests/event_update.c
@@ -0,0 +1,117 @@
+#include <linux/compiler.h>
+#include "evlist.h"
+#include "evsel.h"
+#include "machine.h"
+#include "tests.h"
+#include "debug.h"
+
+static int process_event_unit(struct perf_tool *tool __maybe_unused,
+			      union perf_event *event,
+			      struct perf_sample *sample __maybe_unused,
+			      struct machine *machine __maybe_unused)
+{
+	struct event_update_event *ev = (struct event_update_event *) event;
+
+	TEST_ASSERT_VAL("wrong id", ev->id == 123);
+	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__UNIT);
+	TEST_ASSERT_VAL("wrong unit", !strcmp(ev->data, "KRAVA"));
+	return 0;
+}
+
+static int process_event_scale(struct perf_tool *tool __maybe_unused,
+			       union perf_event *event,
+			       struct perf_sample *sample __maybe_unused,
+			       struct machine *machine __maybe_unused)
+{
+	struct event_update_event *ev = (struct event_update_event *) event;
+	struct event_update_event_scale *ev_data;
+
+	ev_data = (struct event_update_event_scale *) ev->data;
+
+	TEST_ASSERT_VAL("wrong id", ev->id == 123);
+	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__SCALE);
+	TEST_ASSERT_VAL("wrong scale", ev_data->scale = 0.123);
+	return 0;
+}
+
+struct event_name {
+	struct perf_tool tool;
+	const char *name;
+};
+
+static int process_event_name(struct perf_tool *tool,
+			      union perf_event *event,
+			      struct perf_sample *sample __maybe_unused,
+			      struct machine *machine __maybe_unused)
+{
+	struct event_name *tmp = container_of(tool, struct event_name, tool);
+	struct event_update_event *ev = (struct event_update_event*) event;
+
+	TEST_ASSERT_VAL("wrong id", ev->id == 123);
+	TEST_ASSERT_VAL("wrong id", ev->type == PERF_EVENT_UPDATE__NAME);
+	TEST_ASSERT_VAL("wrong name", !strcmp(ev->data, tmp->name));
+	return 0;
+}
+
+static int process_event_cpus(struct perf_tool *tool __maybe_unused,
+			      union perf_event *event,
+			      struct perf_sample *sample __maybe_unused,
+			      struct machine *machine __maybe_unused)
+{
+	struct event_update_event *ev = (struct event_update_event*) event;
+	struct event_update_event_cpus *ev_data;
+	struct cpu_map *map;
+
+	ev_data = (struct event_update_event_cpus*) ev->data;
+
+	map = cpu_map__new_data(&ev_data->cpus);
+
+	TEST_ASSERT_VAL("wrong id", ev->id == 123);
+	TEST_ASSERT_VAL("wrong type", ev->type == PERF_EVENT_UPDATE__CPUS);
+	TEST_ASSERT_VAL("wrong cpus", map->nr == 3);
+	TEST_ASSERT_VAL("wrong cpus", map->map[0] == 1);
+	TEST_ASSERT_VAL("wrong cpus", map->map[1] == 2);
+	TEST_ASSERT_VAL("wrong cpus", map->map[2] == 3);
+	cpu_map__put(map);
+	return 0;
+}
+
+int test__event_update(int subtest __maybe_unused)
+{
+	struct perf_evlist *evlist;
+	struct perf_evsel *evsel;
+	struct event_name tmp;
+
+	evlist = perf_evlist__new_default();
+	TEST_ASSERT_VAL("failed to get evlist", evlist);
+
+	evsel = perf_evlist__first(evlist);
+
+	TEST_ASSERT_VAL("failed to allos ids",
+			!perf_evsel__alloc_id(evsel, 1, 1));
+
+	perf_evlist__id_add(evlist, evsel, 0, 0, 123);
+
+	evsel->unit = strdup("KRAVA");
+
+	TEST_ASSERT_VAL("failed to synthesize attr update unit",
+			!perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit));
+
+	evsel->scale = 0.123;
+
+	TEST_ASSERT_VAL("failed to synthesize attr update scale",
+			!perf_event__synthesize_event_update_scale(NULL, evsel, process_event_scale));
+
+	tmp.name = perf_evsel__name(evsel);
+
+	TEST_ASSERT_VAL("failed to synthesize attr update name",
+			!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
+
+	evsel->own_cpus = cpu_map__new("1,2,3");
+
+	TEST_ASSERT_VAL("failed to synthesize attr update cpus",
+			!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
+
+	cpu_map__put(evsel->own_cpus);
+	return 0;
+}
diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c
index 3fa715987a5e..2de4a4f2c3ed 100644
--- a/tools/perf/tests/evsel-roundtrip-name.c
+++ b/tools/perf/tests/evsel-roundtrip-name.c
@@ -95,7 +95,7 @@ out_delete_evlist:
 #define perf_evsel__name_array_test(names) \
 	__perf_evsel__name_array_test(names, ARRAY_SIZE(names))
 
-int test__perf_evsel__roundtrip_name_test(void)
+int test__perf_evsel__roundtrip_name_test(int subtest __maybe_unused)
 {
 	int err = 0, ret = 0;
 
@@ -103,7 +103,8 @@ int test__perf_evsel__roundtrip_name_test(void)
 	if (err)
 		ret = err;
 
-	err = perf_evsel__name_array_test(perf_evsel__sw_names);
+	err = __perf_evsel__name_array_test(perf_evsel__sw_names,
+					    PERF_COUNT_SW_DUMMY + 1);
 	if (err)
 		ret = err;
 
diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c
index 790e413d9a1f..1984b3bbfe15 100644
--- a/tools/perf/tests/evsel-tp-sched.c
+++ b/tools/perf/tests/evsel-tp-sched.c
@@ -32,7 +32,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
 	return ret;
 }
 
-int test__perf_evsel__tp_sched_test(void)
+int test__perf_evsel__tp_sched_test(int subtest __maybe_unused)
 {
 	struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch");
 	int ret = 0;
diff --git a/tools/perf/tests/fdarray.c b/tools/perf/tests/fdarray.c
index d24b837951d4..c809463edbe5 100644
--- a/tools/perf/tests/fdarray.c
+++ b/tools/perf/tests/fdarray.c
@@ -25,7 +25,7 @@ static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE
 	return printed + fdarray__fprintf(fda, fp);
 }
 
-int test__fdarray__filter(void)
+int test__fdarray__filter(int subtest __maybe_unused)
 {
 	int nr_fds, expected_fd[2], fd, err = TEST_FAIL;
 	struct fdarray *fda = fdarray__new(5, 5);
@@ -103,7 +103,7 @@ out:
 	return err;
 }
 
-int test__fdarray__add(void)
+int test__fdarray__add(int subtest __maybe_unused)
 {
 	int err = TEST_FAIL;
 	struct fdarray *fda = fdarray__new(2, 2);
diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c
index ce80b274b097..bcfd081ee1d2 100644
--- a/tools/perf/tests/hists_common.c
+++ b/tools/perf/tests/hists_common.c
@@ -87,6 +87,11 @@ struct machine *setup_fake_machine(struct machines *machines)
 		return NULL;
 	}
 
+	if (machine__create_kernel_maps(machine)) {
+		pr_debug("Cannot create kernel maps\n");
+		return NULL;
+	}
+
 	for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
 		struct thread *thread;
 
@@ -150,7 +155,6 @@ struct machine *setup_fake_machine(struct machines *machines)
 out:
 	pr_debug("Not enough memory for machine setup\n");
 	machine__delete_threads(machine);
-	machine__delete(machine);
 	return NULL;
 }
 
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 7ed737019de7..e36089212061 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -281,7 +281,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = false;
 	perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting();
+	setup_sorting(NULL);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -428,7 +428,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = false;
 	perf_evsel__set_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting();
+	setup_sorting(NULL);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -486,7 +486,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = true;
 	perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting();
+	setup_sorting(NULL);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -670,7 +670,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = true;
 	perf_evsel__set_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting();
+	setup_sorting(NULL);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -686,7 +686,7 @@ out:
 	return err;
 }
 
-int test__hists_cumulate(void)
+int test__hists_cumulate(int subtest __maybe_unused)
 {
 	int err = TEST_FAIL;
 	struct machines machines;
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 818acf875dd0..2a784befd9ce 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -104,7 +104,7 @@ out:
 	return TEST_FAIL;
 }
 
-int test__hists_filter(void)
+int test__hists_filter(int subtest __maybe_unused)
 {
 	int err = TEST_FAIL;
 	struct machines machines;
@@ -122,7 +122,7 @@ int test__hists_filter(void)
 		goto out;
 
 	/* default sort order (comm,dso,sym) will be used */
-	if (setup_sorting() < 0)
+	if (setup_sorting(NULL) < 0)
 		goto out;
 
 	machines__init(&machines);
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 8c102b011424..c764d69ac6ef 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -64,7 +64,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 	struct perf_evsel *evsel;
 	struct addr_location al;
 	struct hist_entry *he;
-	struct perf_sample sample = { .period = 1, };
+	struct perf_sample sample = { .period = 1, .weight = 1, };
 	size_t i = 0, k;
 
 	/*
@@ -90,7 +90,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 				goto out;
 
 			he = __hists__add_entry(hists, &al, NULL,
-						NULL, NULL, 1, 1, 0, true);
+						NULL, NULL, &sample, true);
 			if (he == NULL) {
 				addr_location__put(&al);
 				goto out;
@@ -116,7 +116,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 				goto out;
 
 			he = __hists__add_entry(hists, &al, NULL,
-						NULL, NULL, 1, 1, 0, true);
+						NULL, NULL, &sample, true);
 			if (he == NULL) {
 				addr_location__put(&al);
 				goto out;
@@ -274,7 +274,7 @@ static int validate_link(struct hists *leader, struct hists *other)
 	return __validate_link(leader, 0) || __validate_link(other, 1);
 }
 
-int test__hists_link(void)
+int test__hists_link(int subtest __maybe_unused)
 {
 	int err = -1;
 	struct hists *hists, *first_hists;
@@ -294,7 +294,7 @@ int test__hists_link(void)
 		goto out;
 
 	/* default sort order (comm,dso,sym) will be used */
-	if (setup_sorting() < 0)
+	if (setup_sorting(NULL) < 0)
 		goto out;
 
 	machines__init(&machines);
diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c
index adbebc852cc8..ebe6cd485b5d 100644
--- a/tools/perf/tests/hists_output.c
+++ b/tools/perf/tests/hists_output.c
@@ -134,7 +134,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine)
 	field_order = NULL;
 	sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
 
-	setup_sorting();
+	setup_sorting(NULL);
 
 	/*
 	 * expected output:
@@ -236,7 +236,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine)
 	field_order = "overhead,cpu";
 	sort_order = "pid";
 
-	setup_sorting();
+	setup_sorting(NULL);
 
 	/*
 	 * expected output:
@@ -292,7 +292,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine)
 	field_order = "comm,overhead,dso";
 	sort_order = NULL;
 
-	setup_sorting();
+	setup_sorting(NULL);
 
 	/*
 	 * expected output:
@@ -366,7 +366,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
 	field_order = "dso,sym,comm,overhead,dso";
 	sort_order = "sym";
 
-	setup_sorting();
+	setup_sorting(NULL);
 
 	/*
 	 * expected output:
@@ -468,7 +468,7 @@ static int test5(struct perf_evsel *evsel, struct machine *machine)
 	field_order = "cpu,pid,comm,dso,sym";
 	sort_order = "dso,pid";
 
-	setup_sorting();
+	setup_sorting(NULL);
 
 	/*
 	 * expected output:
@@ -576,7 +576,7 @@ out:
 	return err;
 }
 
-int test__hists_output(void)
+int test__hists_output(int subtest __maybe_unused)
 {
 	int err = TEST_FAIL;
 	struct machines machines;
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index a2e2269aa093..ddb78fae064a 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -49,13 +49,12 @@ static int find_comm(struct perf_evlist *evlist, const char *comm)
  * when an event is disabled but a dummy software event is not disabled.  If the
  * test passes %0 is returned, otherwise %-1 is returned.
  */
-int test__keep_tracking(void)
+int test__keep_tracking(int subtest __maybe_unused)
 {
 	struct record_opts opts = {
 		.mmap_pages	     = UINT_MAX,
 		.user_freq	     = UINT_MAX,
 		.user_interval	     = ULLONG_MAX,
-		.freq		     = 4000,
 		.target		     = {
 			.uses_mmap   = true,
 		},
@@ -124,7 +123,7 @@ int test__keep_tracking(void)
 
 	evsel = perf_evlist__last(evlist);
 
-	CHECK__(perf_evlist__disable_event(evlist, evsel));
+	CHECK__(perf_evsel__disable(evsel));
 
 	comm = "Test COMM 2";
 	CHECK__(prctl(PR_SET_NAME, (unsigned long)comm, 0, 0, 0));
diff --git a/tools/perf/tests/kmod-path.c b/tools/perf/tests/kmod-path.c
index 08c433b4bf4f..d2af78193153 100644
--- a/tools/perf/tests/kmod-path.c
+++ b/tools/perf/tests/kmod-path.c
@@ -49,7 +49,7 @@ static int test_is_kernel_module(const char *path, int cpumode, bool expect)
 #define M(path, c, e) \
 	TEST_ASSERT_VAL("failed", !test_is_kernel_module(path, c, e))
 
-int test__kmod_path__parse(void)
+int test__kmod_path__parse(int subtest __maybe_unused)
 {
 	/* path                alloc_name  alloc_ext   kmod  comp   name     ext */
 	T("/xxxx/xxxx/x-x.ko", true      , true      , true, false, "[x_x]", NULL);
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
index bc4cf507cde5..06f45c1d4256 100644
--- a/tools/perf/tests/llvm.c
+++ b/tools/perf/tests/llvm.c
@@ -44,13 +44,17 @@ static struct {
 		.source = test_llvm__bpf_test_kbuild_prog,
 		.desc = "Test kbuild searching",
 	},
+	[LLVM_TESTCASE_BPF_PROLOGUE] = {
+		.source = test_llvm__bpf_test_prologue_prog,
+		.desc = "Compile source for BPF prologue generation test",
+	},
 };
 
 
 int
 test_llvm__fetch_bpf_obj(void **p_obj_buf,
 			 size_t *p_obj_buf_sz,
-			 enum test_llvm__testcase index,
+			 enum test_llvm__testcase idx,
 			 bool force)
 {
 	const char *source;
@@ -59,11 +63,11 @@ test_llvm__fetch_bpf_obj(void **p_obj_buf,
 	char *tmpl_new = NULL, *clang_opt_new = NULL;
 	int err, old_verbose, ret = TEST_FAIL;
 
-	if (index >= __LLVM_TESTCASE_MAX)
+	if (idx >= __LLVM_TESTCASE_MAX)
 		return TEST_FAIL;
 
-	source = bpf_source_table[index].source;
-	desc = bpf_source_table[index].desc;
+	source = bpf_source_table[idx].source;
+	desc = bpf_source_table[idx].desc;
 
 	perf_config(perf_config_cb, NULL);
 
@@ -127,44 +131,39 @@ out:
 	return ret;
 }
 
-int test__llvm(void)
+int test__llvm(int subtest)
 {
-	enum test_llvm__testcase i;
+	int ret;
+	void *obj_buf = NULL;
+	size_t obj_buf_sz = 0;
 
-	for (i = 0; i < __LLVM_TESTCASE_MAX; i++) {
-		int ret;
-		void *obj_buf = NULL;
-		size_t obj_buf_sz = 0;
+	if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX))
+		return TEST_FAIL;
 
-		ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
-					       i, false);
+	ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
+				       subtest, false);
 
-		if (ret == TEST_OK) {
-			ret = test__bpf_parsing(obj_buf, obj_buf_sz);
-			if (ret != TEST_OK)
-				pr_debug("Failed to parse test case '%s'\n",
-					 bpf_source_table[i].desc);
-		}
-		free(obj_buf);
-
-		switch (ret) {
-		case TEST_SKIP:
-			return TEST_SKIP;
-		case TEST_OK:
-			break;
-		default:
-			/*
-			 * Test 0 is the basic LLVM test. If test 0
-			 * fail, the basic LLVM support not functional
-			 * so the whole test should fail. If other test
-			 * case fail, it can be fixed by adjusting
-			 * config so don't report error.
-			 */
-			if (i == 0)
-				return TEST_FAIL;
-			else
-				return TEST_SKIP;
+	if (ret == TEST_OK) {
+		ret = test__bpf_parsing(obj_buf, obj_buf_sz);
+		if (ret != TEST_OK) {
+			pr_debug("Failed to parse test case '%s'\n",
+				 bpf_source_table[subtest].desc);
 		}
 	}
-	return TEST_OK;
+	free(obj_buf);
+
+	return ret;
+}
+
+int test__llvm_subtest_get_nr(void)
+{
+	return __LLVM_TESTCASE_MAX;
+}
+
+const char *test__llvm_subtest_get_desc(int subtest)
+{
+	if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX))
+		return NULL;
+
+	return bpf_source_table[subtest].desc;
 }
diff --git a/tools/perf/tests/llvm.h b/tools/perf/tests/llvm.h
index d91d8f44efee..5150b4d6ef50 100644
--- a/tools/perf/tests/llvm.h
+++ b/tools/perf/tests/llvm.h
@@ -6,10 +6,12 @@
 
 extern const char test_llvm__bpf_base_prog[];
 extern const char test_llvm__bpf_test_kbuild_prog[];
+extern const char test_llvm__bpf_test_prologue_prog[];
 
 enum test_llvm__testcase {
 	LLVM_TESTCASE_BASE,
 	LLVM_TESTCASE_KBUILD,
+	LLVM_TESTCASE_BPF_PROLOGUE,
 	__LLVM_TESTCASE_MAX,
 };
 
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 8ea3dffc5065..c1fbb8e884c0 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -259,7 +259,8 @@ $(run_O):
 tarpkg:
 	@cmd="$(PERF)/tests/perf-targz-src-pkg $(PERF)"; \
 	echo "- $@: $$cmd" && echo $$cmd > $@ && \
-	( eval $$cmd ) >> $@ 2>&1
+	( eval $$cmd ) >> $@ 2>&1 && \
+	rm -f $@
 
 make_kernelsrc:
 	@echo "- make -C <kernelsrc> tools/perf"
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index 4495493c9431..359e98fcd94c 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -16,7 +16,7 @@
  * Then it checks if the number of syscalls reported as perf events by
  * the kernel corresponds to the number of syscalls made.
  */
-int test__basic_mmap(void)
+int test__basic_mmap(int subtest __maybe_unused)
 {
 	int err = -1;
 	union perf_event *event;
diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
index 145050e2e544..0c5ce44f723f 100644
--- a/tools/perf/tests/mmap-thread-lookup.c
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -149,7 +149,6 @@ static int synth_process(struct machine *machine)
 
 static int mmap_events(synth_cb synth)
 {
-	struct machines machines;
 	struct machine *machine;
 	int err, i;
 
@@ -162,8 +161,7 @@ static int mmap_events(synth_cb synth)
 	 */
 	TEST_ASSERT_VAL("failed to create threads", !threads_create());
 
-	machines__init(&machines);
-	machine = &machines.host;
+	machine = machine__new_host();
 
 	dump_trace = verbose > 1 ? 1 : 0;
 
@@ -203,7 +201,7 @@ static int mmap_events(synth_cb synth)
 	}
 
 	machine__delete_threads(machine);
-	machines__exit(&machines);
+	machine__delete(machine);
 	return err;
 }
 
@@ -221,7 +219,7 @@ static int mmap_events(synth_cb synth)
  *
  * by using all thread objects.
  */
-int test__mmap_thread_lookup(void)
+int test__mmap_thread_lookup(int subtest __maybe_unused)
 {
 	/* perf_event__synthesize_threads synthesize */
 	TEST_ASSERT_VAL("failed with sythesizing all",
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index 2006485a2859..53c2273e8859 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -7,7 +7,7 @@
 #include "debug.h"
 #include "stat.h"
 
-int test__openat_syscall_event_on_all_cpus(void)
+int test__openat_syscall_event_on_all_cpus(int subtest __maybe_unused)
 {
 	int err = -1, fd, cpu;
 	struct cpu_map *cpus;
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 5e811cd8f1c3..eb99a105f31c 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -6,7 +6,7 @@
 #include "tests.h"
 #include "debug.h"
 
-int test__syscall_openat_tp_fields(void)
+int test__syscall_openat_tp_fields(int subtest __maybe_unused)
 {
 	struct record_opts opts = {
 		.target = {
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 033b54797b8a..1184f9ba6499 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -5,7 +5,7 @@
 #include "debug.h"
 #include "tests.h"
 
-int test__openat_syscall_event(void)
+int test__openat_syscall_event(int subtest __maybe_unused)
 {
 	int err = -1, fd;
 	struct perf_evsel *evsel;
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 636d7b42d844..abe8849d1d70 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1765,7 +1765,7 @@ static void debug_warn(const char *warn, va_list params)
 	fprintf(stderr, " Warning: %s\n", msg);
 }
 
-int test__parse_events(void)
+int test__parse_events(int subtest __maybe_unused)
 {
 	int ret1, ret2 = 0;
 
diff --git a/tools/perf/tests/parse-no-sample-id-all.c b/tools/perf/tests/parse-no-sample-id-all.c
index 2c63ea658541..294c76b01b41 100644
--- a/tools/perf/tests/parse-no-sample-id-all.c
+++ b/tools/perf/tests/parse-no-sample-id-all.c
@@ -67,7 +67,7 @@ struct test_attr_event {
  *
  * Return: %0 on success, %-1 if the test fails.
  */
-int test__parse_no_sample_id_all(void)
+int test__parse_no_sample_id_all(int subtest __maybe_unused)
 {
 	int err;
 
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 7a228a2a070b..1cc78cefe399 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -32,7 +32,7 @@ realloc:
 	return cpu;
 }
 
-int test__PERF_RECORD(void)
+int test__PERF_RECORD(int subtest __maybe_unused)
 {
 	struct record_opts opts = {
 		.target = {
@@ -40,12 +40,11 @@ int test__PERF_RECORD(void)
 			.uses_mmap = true,
 		},
 		.no_buffering = true,
-		.freq	      = 10,
 		.mmap_pages   = 256,
 	};
 	cpu_set_t cpu_mask;
 	size_t cpu_mask_size = sizeof(cpu_mask);
-	struct perf_evlist *evlist = perf_evlist__new_default();
+	struct perf_evlist *evlist = perf_evlist__new_dummy();
 	struct perf_evsel *evsel;
 	struct perf_sample sample;
 	const char *cmd = "sleep";
@@ -61,6 +60,9 @@ int test__PERF_RECORD(void)
 	int total_events = 0, nr_events[PERF_RECORD_MAX] = { 0, };
 	char sbuf[STRERR_BUFSIZE];
 
+	if (evlist == NULL) /* Fallback for kernels lacking PERF_COUNT_SW_DUMMY */
+		evlist = perf_evlist__new_default();
+
 	if (evlist == NULL || argv == NULL) {
 		pr_debug("Not enough memory to create evlist\n");
 		goto out;
diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c
index faa04e9d5d5f..1e2ba2602930 100644
--- a/tools/perf/tests/pmu.c
+++ b/tools/perf/tests/pmu.c
@@ -133,7 +133,7 @@ static struct list_head *test_terms_list(void)
 	return &terms;
 }
 
-int test__pmu(void)
+int test__pmu(int subtest __maybe_unused)
 {
 	char *format = test_format_dir_get();
 	LIST_HEAD(formats);
diff --git a/tools/perf/tests/python-use.c b/tools/perf/tests/python-use.c
index 7760277c6def..7a52834ee0d0 100644
--- a/tools/perf/tests/python-use.c
+++ b/tools/perf/tests/python-use.c
@@ -4,11 +4,12 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <linux/compiler.h>
 #include "tests.h"
 
 extern int verbose;
 
-int test__python_use(void)
+int test__python_use(int subtest __maybe_unused)
 {
 	char *cmd;
 	int ret;
diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 30c02181e78b..5f23710b9fee 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -290,7 +290,7 @@ out_free:
  * checks sample format bits separately and together.  If the test passes %0 is
  * returned, otherwise %-1 is returned.
  */
-int test__sample_parsing(void)
+int test__sample_parsing(int subtest __maybe_unused)
 {
 	const u64 rf[] = {4, 5, 6, 7, 12, 13, 14, 15};
 	u64 sample_type;
diff --git a/tools/perf/tests/stat.c b/tools/perf/tests/stat.c
new file mode 100644
index 000000000000..6a20ff2326bb
--- /dev/null
+++ b/tools/perf/tests/stat.c
@@ -0,0 +1,111 @@
+#include <linux/compiler.h>
+#include "event.h"
+#include "tests.h"
+#include "stat.h"
+#include "counts.h"
+#include "debug.h"
+
+static bool has_term(struct stat_config_event *config,
+		     u64 tag, u64 val)
+{
+	unsigned i;
+
+	for (i = 0; i < config->nr; i++) {
+		if ((config->data[i].tag == tag) &&
+		    (config->data[i].val == val))
+			return true;
+	}
+
+	return false;
+}
+
+static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_sample *sample __maybe_unused,
+				     struct machine *machine __maybe_unused)
+{
+	struct stat_config_event *config = &event->stat_config;
+	struct perf_stat_config stat_config;
+
+#define HAS(term, val) \
+	has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
+
+	TEST_ASSERT_VAL("wrong nr",        config->nr == PERF_STAT_CONFIG_TERM__MAX);
+	TEST_ASSERT_VAL("wrong aggr_mode", HAS(AGGR_MODE, AGGR_CORE));
+	TEST_ASSERT_VAL("wrong scale",     HAS(SCALE, 1));
+	TEST_ASSERT_VAL("wrong interval",  HAS(INTERVAL, 1));
+
+#undef HAS
+
+	perf_event__read_stat_config(&stat_config, config);
+
+	TEST_ASSERT_VAL("wrong aggr_mode", stat_config.aggr_mode == AGGR_CORE);
+	TEST_ASSERT_VAL("wrong scale",     stat_config.scale == 1);
+	TEST_ASSERT_VAL("wrong interval",  stat_config.interval == 1);
+	return 0;
+}
+
+int test__synthesize_stat_config(int subtest __maybe_unused)
+{
+	struct perf_stat_config stat_config = {
+		.aggr_mode	= AGGR_CORE,
+		.scale		= 1,
+		.interval	= 1,
+	};
+
+	TEST_ASSERT_VAL("failed to synthesize stat_config",
+		!perf_event__synthesize_stat_config(NULL, &stat_config, process_stat_config_event, NULL));
+
+	return 0;
+}
+
+static int process_stat_event(struct perf_tool *tool __maybe_unused,
+			      union perf_event *event,
+			      struct perf_sample *sample __maybe_unused,
+			      struct machine *machine __maybe_unused)
+{
+	struct stat_event *st = &event->stat;
+
+	TEST_ASSERT_VAL("wrong cpu",    st->cpu    == 1);
+	TEST_ASSERT_VAL("wrong thread", st->thread == 2);
+	TEST_ASSERT_VAL("wrong id",     st->id     == 3);
+	TEST_ASSERT_VAL("wrong val",    st->val    == 100);
+	TEST_ASSERT_VAL("wrong run",    st->ena    == 200);
+	TEST_ASSERT_VAL("wrong ena",    st->run    == 300);
+	return 0;
+}
+
+int test__synthesize_stat(int subtest __maybe_unused)
+{
+	struct perf_counts_values count;
+
+	count.val = 100;
+	count.ena = 200;
+	count.run = 300;
+
+	TEST_ASSERT_VAL("failed to synthesize stat_config",
+		!perf_event__synthesize_stat(NULL, 1, 2, 3, &count, process_stat_event, NULL));
+
+	return 0;
+}
+
+static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
+				    union perf_event *event,
+				    struct perf_sample *sample __maybe_unused,
+				    struct machine *machine __maybe_unused)
+{
+	struct stat_round_event *stat_round = &event->stat_round;
+
+	TEST_ASSERT_VAL("wrong time", stat_round->time == 0xdeadbeef);
+	TEST_ASSERT_VAL("wrong type", stat_round->type == PERF_STAT_ROUND_TYPE__INTERVAL);
+	return 0;
+}
+
+int test__synthesize_stat_round(int subtest __maybe_unused)
+{
+	TEST_ASSERT_VAL("failed to synthesize stat_config",
+		!perf_event__synthesize_stat_round(NULL, 0xdeadbeef, PERF_STAT_ROUND_TYPE__INTERVAL,
+						   process_stat_round_event, NULL));
+
+	return 0;
+}
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 5b83f56a3b6f..36e8ce1550e3 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -122,7 +122,7 @@ out_delete_evlist:
 	return err;
 }
 
-int test__sw_clock_freq(void)
+int test__sw_clock_freq(int subtest __maybe_unused)
 {
 	int ret;
 
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index a02af503100c..ebd80168d51e 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -305,7 +305,7 @@ out_free_nodes:
  * evsel->system_wide and evsel->tracking flags (respectively) with other events
  * sometimes enabled or disabled.
  */
-int test__switch_tracking(void)
+int test__switch_tracking(int subtest __maybe_unused)
 {
 	const char *sched_switch = "sched:sched_switch";
 	struct switch_tracking switch_tracking = { .tids = NULL, };
@@ -455,7 +455,7 @@ int test__switch_tracking(void)
 
 	perf_evlist__enable(evlist);
 
-	err = perf_evlist__disable_event(evlist, cpu_clocks_evsel);
+	err = perf_evsel__disable(cpu_clocks_evsel);
 	if (err) {
 		pr_debug("perf_evlist__disable_event failed!\n");
 		goto out_err;
@@ -474,7 +474,7 @@ int test__switch_tracking(void)
 		goto out_err;
 	}
 
-	err = perf_evlist__disable_event(evlist, cycles_evsel);
+	err = perf_evsel__disable(cycles_evsel);
 	if (err) {
 		pr_debug("perf_evlist__disable_event failed!\n");
 		goto out_err;
@@ -500,7 +500,7 @@ int test__switch_tracking(void)
 		goto out_err;
 	}
 
-	err = perf_evlist__enable_event(evlist, cycles_evsel);
+	err = perf_evsel__enable(cycles_evsel);
 	if (err) {
 		pr_debug("perf_evlist__disable_event failed!\n");
 		goto out_err;
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index add16385f13e..2dfff7ac8ef3 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -31,7 +31,7 @@ static void workload_exec_failed_signal(int signo __maybe_unused,
  * if the number of exit event reported by the kernel is 1 or not
  * in order to check the kernel returns correct number of event.
  */
-int test__task_exit(void)
+int test__task_exit(int subtest __maybe_unused)
 {
 	int err = -1;
 	union perf_event *event;
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 3c8734a3abbc..82b2b5e6ba7c 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -1,6 +1,8 @@
 #ifndef TESTS_H
 #define TESTS_H
 
+#include <stdbool.h>
+
 #define TEST_ASSERT_VAL(text, cond)					 \
 do {									 \
 	if (!(cond)) {							 \
@@ -26,48 +28,63 @@ enum {
 
 struct test {
 	const char *desc;
-	int (*func)(void);
+	int (*func)(int subtest);
+	struct {
+		bool skip_if_fail;
+		int (*get_nr)(void);
+		const char *(*get_desc)(int subtest);
+	} subtest;
 };
 
 /* Tests */
-int test__vmlinux_matches_kallsyms(void);
-int test__openat_syscall_event(void);
-int test__openat_syscall_event_on_all_cpus(void);
-int test__basic_mmap(void);
-int test__PERF_RECORD(void);
-int test__perf_evsel__roundtrip_name_test(void);
-int test__perf_evsel__tp_sched_test(void);
-int test__syscall_openat_tp_fields(void);
-int test__pmu(void);
-int test__attr(void);
-int test__dso_data(void);
-int test__dso_data_cache(void);
-int test__dso_data_reopen(void);
-int test__parse_events(void);
-int test__hists_link(void);
-int test__python_use(void);
-int test__bp_signal(void);
-int test__bp_signal_overflow(void);
-int test__task_exit(void);
-int test__sw_clock_freq(void);
-int test__code_reading(void);
-int test__sample_parsing(void);
-int test__keep_tracking(void);
-int test__parse_no_sample_id_all(void);
-int test__dwarf_unwind(void);
-int test__hists_filter(void);
-int test__mmap_thread_lookup(void);
-int test__thread_mg_share(void);
-int test__hists_output(void);
-int test__hists_cumulate(void);
-int test__switch_tracking(void);
-int test__fdarray__filter(void);
-int test__fdarray__add(void);
-int test__kmod_path__parse(void);
-int test__thread_map(void);
-int test__llvm(void);
-int test__bpf(void);
-int test_session_topology(void);
+int test__vmlinux_matches_kallsyms(int subtest);
+int test__openat_syscall_event(int subtest);
+int test__openat_syscall_event_on_all_cpus(int subtest);
+int test__basic_mmap(int subtest);
+int test__PERF_RECORD(int subtest);
+int test__perf_evsel__roundtrip_name_test(int subtest);
+int test__perf_evsel__tp_sched_test(int subtest);
+int test__syscall_openat_tp_fields(int subtest);
+int test__pmu(int subtest);
+int test__attr(int subtest);
+int test__dso_data(int subtest);
+int test__dso_data_cache(int subtest);
+int test__dso_data_reopen(int subtest);
+int test__parse_events(int subtest);
+int test__hists_link(int subtest);
+int test__python_use(int subtest);
+int test__bp_signal(int subtest);
+int test__bp_signal_overflow(int subtest);
+int test__task_exit(int subtest);
+int test__sw_clock_freq(int subtest);
+int test__code_reading(int subtest);
+int test__sample_parsing(int subtest);
+int test__keep_tracking(int subtest);
+int test__parse_no_sample_id_all(int subtest);
+int test__dwarf_unwind(int subtest);
+int test__hists_filter(int subtest);
+int test__mmap_thread_lookup(int subtest);
+int test__thread_mg_share(int subtest);
+int test__hists_output(int subtest);
+int test__hists_cumulate(int subtest);
+int test__switch_tracking(int subtest);
+int test__fdarray__filter(int subtest);
+int test__fdarray__add(int subtest);
+int test__kmod_path__parse(int subtest);
+int test__thread_map(int subtest);
+int test__llvm(int subtest);
+const char *test__llvm_subtest_get_desc(int subtest);
+int test__llvm_subtest_get_nr(void);
+int test__bpf(int subtest);
+const char *test__bpf_subtest_get_desc(int subtest);
+int test__bpf_subtest_get_nr(void);
+int test_session_topology(int subtest);
+int test__thread_map_synthesize(int subtest);
+int test__cpu_map_synthesize(int subtest);
+int test__synthesize_stat_config(int subtest);
+int test__synthesize_stat(int subtest);
+int test__synthesize_stat_round(int subtest);
+int test__event_update(int subtest);
 
 #if defined(__arm__) || defined(__aarch64__)
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index 138a0e3431fa..fccde848fe9c 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -4,7 +4,7 @@
 #include "thread_map.h"
 #include "debug.h"
 
-int test__thread_map(void)
+int test__thread_map(int subtest __maybe_unused)
 {
 	struct thread_map *map;
 
@@ -40,3 +40,46 @@ int test__thread_map(void)
 	thread_map__put(map);
 	return 0;
 }
+
+static int process_event(struct perf_tool *tool __maybe_unused,
+			 union perf_event *event,
+			 struct perf_sample *sample __maybe_unused,
+			 struct machine *machine __maybe_unused)
+{
+	struct thread_map_event *map = &event->thread_map;
+	struct thread_map *threads;
+
+	TEST_ASSERT_VAL("wrong nr",   map->nr == 1);
+	TEST_ASSERT_VAL("wrong pid",  map->entries[0].pid == (u64) getpid());
+	TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, "perf"));
+
+	threads = thread_map__new_event(&event->thread_map);
+	TEST_ASSERT_VAL("failed to alloc map", threads);
+
+	TEST_ASSERT_VAL("wrong nr", threads->nr == 1);
+	TEST_ASSERT_VAL("wrong pid",
+			thread_map__pid(threads, 0) == getpid());
+	TEST_ASSERT_VAL("wrong comm",
+			thread_map__comm(threads, 0) &&
+			!strcmp(thread_map__comm(threads, 0), "perf"));
+	TEST_ASSERT_VAL("wrong refcnt",
+			atomic_read(&threads->refcnt) == 1);
+	thread_map__put(threads);
+	return 0;
+}
+
+int test__thread_map_synthesize(int subtest __maybe_unused)
+{
+	struct thread_map *threads;
+
+	/* test map on current pid */
+	threads = thread_map__new_by_pid(getpid());
+	TEST_ASSERT_VAL("failed to alloc map", threads);
+
+	thread_map__read_comms(threads);
+
+	TEST_ASSERT_VAL("failed to synthesize map",
+		!perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
+
+	return 0;
+}
diff --git a/tools/perf/tests/thread-mg-share.c b/tools/perf/tests/thread-mg-share.c
index 01fabb19d746..188b63140fc8 100644
--- a/tools/perf/tests/thread-mg-share.c
+++ b/tools/perf/tests/thread-mg-share.c
@@ -4,7 +4,7 @@
 #include "map.h"
 #include "debug.h"
 
-int test__thread_mg_share(void)
+int test__thread_mg_share(int subtest __maybe_unused)
 {
 	struct machines machines;
 	struct machine *machine;
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index f5bb096c3bd9..98fe69ac553c 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -84,7 +84,7 @@ static int check_cpu_topology(char *path, struct cpu_map *map)
 	return 0;
 }
 
-int test_session_topology(void)
+int test_session_topology(int subtest __maybe_unused)
 {
 	char path[PATH_MAX];
 	struct cpu_map *map;
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index d677e018e504..f0bfc9e8fd9f 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -18,7 +18,7 @@ static int vmlinux_matches_kallsyms_filter(struct map *map __maybe_unused,
 
 #define UM(x) kallsyms_map->unmap_ip(kallsyms_map, (x))
 
-int test__vmlinux_matches_kallsyms(void)
+int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
 {
 	int err = -1;
 	struct rb_node *nd;
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index e9703c0829f1..d37202121689 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -528,7 +528,7 @@ static struct ui_browser_colorset {
 		.colorset = HE_COLORSET_SELECTED,
 		.name	  = "selected",
 		.fg	  = "black",
-		.bg	  = "lightgray",
+		.bg	  = "yellow",
 	},
 	{
 		.colorset = HE_COLORSET_CODE,
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 81def6c3f24b..901d481e6cea 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -178,12 +178,51 @@ static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
 	return n;
 }
 
+static int callchain_node__count_flat_rows(struct callchain_node *node)
+{
+	struct callchain_list *chain;
+	char folded_sign = 0;
+	int n = 0;
+
+	list_for_each_entry(chain, &node->parent_val, list) {
+		if (!folded_sign) {
+			/* only check first chain list entry */
+			folded_sign = callchain_list__folded(chain);
+			if (folded_sign == '+')
+				return 1;
+		}
+		n++;
+	}
+
+	list_for_each_entry(chain, &node->val, list) {
+		if (!folded_sign) {
+			/* node->parent_val list might be empty */
+			folded_sign = callchain_list__folded(chain);
+			if (folded_sign == '+')
+				return 1;
+		}
+		n++;
+	}
+
+	return n;
+}
+
+static int callchain_node__count_folded_rows(struct callchain_node *node __maybe_unused)
+{
+	return 1;
+}
+
 static int callchain_node__count_rows(struct callchain_node *node)
 {
 	struct callchain_list *chain;
 	bool unfolded = false;
 	int n = 0;
 
+	if (callchain_param.mode == CHAIN_FLAT)
+		return callchain_node__count_flat_rows(node);
+	else if (callchain_param.mode == CHAIN_FOLDED)
+		return callchain_node__count_folded_rows(node);
+
 	list_for_each_entry(chain, &node->val, list) {
 		++n;
 		unfolded = chain->unfolded;
@@ -263,7 +302,7 @@ static void callchain_node__init_have_children(struct callchain_node *node,
 	chain = list_entry(node->val.next, struct callchain_list, list);
 	chain->has_children = has_sibling;
 
-	if (!list_empty(&node->val)) {
+	if (node->val.next != node->val.prev) {
 		chain = list_entry(node->val.prev, struct callchain_list, list);
 		chain->has_children = !RB_EMPTY_ROOT(&node->rb_root);
 	}
@@ -279,6 +318,9 @@ static void callchain__init_have_children(struct rb_root *root)
 	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
 		struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
 		callchain_node__init_have_children(node, has_sibling);
+		if (callchain_param.mode == CHAIN_FLAT ||
+		    callchain_param.mode == CHAIN_FOLDED)
+			callchain_node__make_parent_list(node);
 	}
 }
 
@@ -577,6 +619,231 @@ static bool hist_browser__check_dump_full(struct hist_browser *browser __maybe_u
 
 #define LEVEL_OFFSET_STEP 3
 
+static int hist_browser__show_callchain_list(struct hist_browser *browser,
+					     struct callchain_node *node,
+					     struct callchain_list *chain,
+					     unsigned short row, u64 total,
+					     bool need_percent, int offset,
+					     print_callchain_entry_fn print,
+					     struct callchain_print_arg *arg)
+{
+	char bf[1024], *alloc_str;
+	const char *str;
+
+	if (arg->row_offset != 0) {
+		arg->row_offset--;
+		return 0;
+	}
+
+	alloc_str = NULL;
+	str = callchain_list__sym_name(chain, bf, sizeof(bf),
+				       browser->show_dso);
+
+	if (need_percent) {
+		char buf[64];
+
+		callchain_node__scnprintf_value(node, buf, sizeof(buf),
+						total);
+
+		if (asprintf(&alloc_str, "%s %s", buf, str) < 0)
+			str = "Not enough memory!";
+		else
+			str = alloc_str;
+	}
+
+	print(browser, chain, str, offset, row, arg);
+
+	free(alloc_str);
+	return 1;
+}
+
+static int hist_browser__show_callchain_flat(struct hist_browser *browser,
+					     struct rb_root *root,
+					     unsigned short row, u64 total,
+					     print_callchain_entry_fn print,
+					     struct callchain_print_arg *arg,
+					     check_output_full_fn is_output_full)
+{
+	struct rb_node *node;
+	int first_row = row, offset = LEVEL_OFFSET_STEP;
+	bool need_percent;
+
+	node = rb_first(root);
+	need_percent = node && rb_next(node);
+
+	while (node) {
+		struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
+		struct rb_node *next = rb_next(node);
+		struct callchain_list *chain;
+		char folded_sign = ' ';
+		int first = true;
+		int extra_offset = 0;
+
+		list_for_each_entry(chain, &child->parent_val, list) {
+			bool was_first = first;
+
+			if (first)
+				first = false;
+			else if (need_percent)
+				extra_offset = LEVEL_OFFSET_STEP;
+
+			folded_sign = callchain_list__folded(chain);
+
+			row += hist_browser__show_callchain_list(browser, child,
+							chain, row, total,
+							was_first && need_percent,
+							offset + extra_offset,
+							print, arg);
+
+			if (is_output_full(browser, row))
+				goto out;
+
+			if (folded_sign == '+')
+				goto next;
+		}
+
+		list_for_each_entry(chain, &child->val, list) {
+			bool was_first = first;
+
+			if (first)
+				first = false;
+			else if (need_percent)
+				extra_offset = LEVEL_OFFSET_STEP;
+
+			folded_sign = callchain_list__folded(chain);
+
+			row += hist_browser__show_callchain_list(browser, child,
+							chain, row, total,
+							was_first && need_percent,
+							offset + extra_offset,
+							print, arg);
+
+			if (is_output_full(browser, row))
+				goto out;
+
+			if (folded_sign == '+')
+				break;
+		}
+
+next:
+		if (is_output_full(browser, row))
+			break;
+		node = next;
+	}
+out:
+	return row - first_row;
+}
+
+static char *hist_browser__folded_callchain_str(struct hist_browser *browser,
+						struct callchain_list *chain,
+						char *value_str, char *old_str)
+{
+	char bf[1024];
+	const char *str;
+	char *new;
+
+	str = callchain_list__sym_name(chain, bf, sizeof(bf),
+				       browser->show_dso);
+	if (old_str) {
+		if (asprintf(&new, "%s%s%s", old_str,
+			     symbol_conf.field_sep ?: ";", str) < 0)
+			new = NULL;
+	} else {
+		if (value_str) {
+			if (asprintf(&new, "%s %s", value_str, str) < 0)
+				new = NULL;
+		} else {
+			if (asprintf(&new, "%s", str) < 0)
+				new = NULL;
+		}
+	}
+	return new;
+}
+
+static int hist_browser__show_callchain_folded(struct hist_browser *browser,
+					       struct rb_root *root,
+					       unsigned short row, u64 total,
+					       print_callchain_entry_fn print,
+					       struct callchain_print_arg *arg,
+					       check_output_full_fn is_output_full)
+{
+	struct rb_node *node;
+	int first_row = row, offset = LEVEL_OFFSET_STEP;
+	bool need_percent;
+
+	node = rb_first(root);
+	need_percent = node && rb_next(node);
+
+	while (node) {
+		struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
+		struct rb_node *next = rb_next(node);
+		struct callchain_list *chain, *first_chain = NULL;
+		int first = true;
+		char *value_str = NULL, *value_str_alloc = NULL;
+		char *chain_str = NULL, *chain_str_alloc = NULL;
+
+		if (arg->row_offset != 0) {
+			arg->row_offset--;
+			goto next;
+		}
+
+		if (need_percent) {
+			char buf[64];
+
+			callchain_node__scnprintf_value(child, buf, sizeof(buf), total);
+			if (asprintf(&value_str, "%s", buf) < 0) {
+				value_str = (char *)"<...>";
+				goto do_print;
+			}
+			value_str_alloc = value_str;
+		}
+
+		list_for_each_entry(chain, &child->parent_val, list) {
+			chain_str = hist_browser__folded_callchain_str(browser,
+						chain, value_str, chain_str);
+			if (first) {
+				first = false;
+				first_chain = chain;
+			}
+
+			if (chain_str == NULL) {
+				chain_str = (char *)"Not enough memory!";
+				goto do_print;
+			}
+
+			chain_str_alloc = chain_str;
+		}
+
+		list_for_each_entry(chain, &child->val, list) {
+			chain_str = hist_browser__folded_callchain_str(browser,
+						chain, value_str, chain_str);
+			if (first) {
+				first = false;
+				first_chain = chain;
+			}
+
+			if (chain_str == NULL) {
+				chain_str = (char *)"Not enough memory!";
+				goto do_print;
+			}
+
+			chain_str_alloc = chain_str;
+		}
+
+do_print:
+		print(browser, first_chain, chain_str, offset, row++, arg);
+		free(value_str_alloc);
+		free(chain_str_alloc);
+
+next:
+		if (is_output_full(browser, row))
+			break;
+		node = next;
+	}
+
+	return row - first_row;
+}
+
 static int hist_browser__show_callchain(struct hist_browser *browser,
 					struct rb_root *root, int level,
 					unsigned short row, u64 total,
@@ -595,15 +862,12 @@ static int hist_browser__show_callchain(struct hist_browser *browser,
 	while (node) {
 		struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
 		struct rb_node *next = rb_next(node);
-		u64 cumul = callchain_cumul_hits(child);
 		struct callchain_list *chain;
 		char folded_sign = ' ';
 		int first = true;
 		int extra_offset = 0;
 
 		list_for_each_entry(chain, &child->val, list) {
-			char bf[1024], *alloc_str;
-			const char *str;
 			bool was_first = first;
 
 			if (first)
@@ -612,31 +876,16 @@ static int hist_browser__show_callchain(struct hist_browser *browser,
 				extra_offset = LEVEL_OFFSET_STEP;
 
 			folded_sign = callchain_list__folded(chain);
-			if (arg->row_offset != 0) {
-				arg->row_offset--;
-				goto do_next;
-			}
-
-			alloc_str = NULL;
-			str = callchain_list__sym_name(chain, bf, sizeof(bf),
-						       browser->show_dso);
-
-			if (was_first && need_percent) {
-				double percent = cumul * 100.0 / total;
-
-				if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
-					str = "Not enough memory!";
-				else
-					str = alloc_str;
-			}
 
-			print(browser, chain, str, offset + extra_offset, row, arg);
+			row += hist_browser__show_callchain_list(browser, child,
+							chain, row, total,
+							was_first && need_percent,
+							offset + extra_offset,
+							print, arg);
 
-			free(alloc_str);
-
-			if (is_output_full(browser, ++row))
+			if (is_output_full(browser, row))
 				goto out;
-do_next:
+
 			if (folded_sign == '+')
 				break;
 		}
@@ -792,7 +1041,8 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 		hist_browser__gotorc(browser, row, 0);
 
 		perf_hpp__for_each_format(fmt) {
-			if (perf_hpp__should_skip(fmt) || column++ < browser->b.horiz_scroll)
+			if (perf_hpp__should_skip(fmt, entry->hists) ||
+			    column++ < browser->b.horiz_scroll)
 				continue;
 
 			if (current_entry && browser->b.navkeypressed) {
@@ -847,10 +1097,22 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 				total = entry->stat.period;
 		}
 
-		printed += hist_browser__show_callchain(browser,
+		if (callchain_param.mode == CHAIN_FLAT) {
+			printed += hist_browser__show_callchain_flat(browser,
+					&entry->sorted_chain, row, total,
+					hist_browser__show_callchain_entry, &arg,
+					hist_browser__check_output_full);
+		} else if (callchain_param.mode == CHAIN_FOLDED) {
+			printed += hist_browser__show_callchain_folded(browser,
+					&entry->sorted_chain, row, total,
+					hist_browser__show_callchain_entry, &arg,
+					hist_browser__check_output_full);
+		} else {
+			printed += hist_browser__show_callchain(browser,
 					&entry->sorted_chain, 1, row, total,
 					hist_browser__show_callchain_entry, &arg,
 					hist_browser__check_output_full);
+		}
 
 		if (arg.is_current_entry)
 			browser->he_selection = entry;
@@ -883,7 +1145,7 @@ static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *
 	}
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt)  || column++ < browser->b.horiz_scroll)
+		if (perf_hpp__should_skip(fmt, hists)  || column++ < browser->b.horiz_scroll)
 			continue;
 
 		ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
@@ -1153,7 +1415,7 @@ static int hist_browser__fprintf_entry(struct hist_browser *browser,
 		printed += fprintf(fp, "%c ", folded_sign);
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, he->hists))
 			continue;
 
 		if (!first) {
@@ -1802,10 +2064,9 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 	SLang_reset_tty();
 	SLang_init_tty(0, 0, 0);
 
-	if (min_pcnt) {
+	if (min_pcnt)
 		browser->min_pcnt = min_pcnt;
-		hist_browser__update_nr_entries(browser);
-	}
+	hist_browser__update_nr_entries(browser);
 
 	browser->pstack = pstack__new(3);
 	if (browser->pstack == NULL)
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 4b3585eed1e8..0f8dcfdfb10f 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -89,8 +89,8 @@ void perf_gtk__init_hpp(void)
 				perf_gtk__hpp_color_overhead_acc;
 }
 
-static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
-				    GtkTreeIter *parent, int col, u64 total)
+static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store,
+					 GtkTreeIter *parent, int col, u64 total)
 {
 	struct rb_node *nd;
 	bool has_single_node = (rb_first(root) == rb_last(root));
@@ -100,13 +100,132 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 		struct callchain_list *chain;
 		GtkTreeIter iter, new_parent;
 		bool need_new_parent;
-		double percent;
-		u64 hits, child_total;
 
 		node = rb_entry(nd, struct callchain_node, rb_node);
 
-		hits = callchain_cumul_hits(node);
-		percent = 100.0 * hits / total;
+		new_parent = *parent;
+		need_new_parent = !has_single_node;
+
+		callchain_node__make_parent_list(node);
+
+		list_for_each_entry(chain, &node->parent_val, list) {
+			char buf[128];
+
+			gtk_tree_store_append(store, &iter, &new_parent);
+
+			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+			gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+			callchain_list__sym_name(chain, buf, sizeof(buf), false);
+			gtk_tree_store_set(store, &iter, col, buf, -1);
+
+			if (need_new_parent) {
+				/*
+				 * Only show the top-most symbol in a callchain
+				 * if it's not the only callchain.
+				 */
+				new_parent = iter;
+				need_new_parent = false;
+			}
+		}
+
+		list_for_each_entry(chain, &node->val, list) {
+			char buf[128];
+
+			gtk_tree_store_append(store, &iter, &new_parent);
+
+			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+			gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+			callchain_list__sym_name(chain, buf, sizeof(buf), false);
+			gtk_tree_store_set(store, &iter, col, buf, -1);
+
+			if (need_new_parent) {
+				/*
+				 * Only show the top-most symbol in a callchain
+				 * if it's not the only callchain.
+				 */
+				new_parent = iter;
+				need_new_parent = false;
+			}
+		}
+	}
+}
+
+static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store,
+					   GtkTreeIter *parent, int col, u64 total)
+{
+	struct rb_node *nd;
+
+	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
+		struct callchain_node *node;
+		struct callchain_list *chain;
+		GtkTreeIter iter;
+		char buf[64];
+		char *str, *str_alloc = NULL;
+		bool first = true;
+
+		node = rb_entry(nd, struct callchain_node, rb_node);
+
+		callchain_node__make_parent_list(node);
+
+		list_for_each_entry(chain, &node->parent_val, list) {
+			char name[1024];
+
+			callchain_list__sym_name(chain, name, sizeof(name), false);
+
+			if (asprintf(&str, "%s%s%s",
+				     first ? "" : str_alloc,
+				     first ? "" : symbol_conf.field_sep ?: "; ",
+				     name) < 0)
+				return;
+
+			first = false;
+			free(str_alloc);
+			str_alloc = str;
+		}
+
+		list_for_each_entry(chain, &node->val, list) {
+			char name[1024];
+
+			callchain_list__sym_name(chain, name, sizeof(name), false);
+
+			if (asprintf(&str, "%s%s%s",
+				     first ? "" : str_alloc,
+				     first ? "" : symbol_conf.field_sep ?: "; ",
+				     name) < 0)
+				return;
+
+			first = false;
+			free(str_alloc);
+			str_alloc = str;
+		}
+
+		gtk_tree_store_append(store, &iter, parent);
+
+		callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+		gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+		gtk_tree_store_set(store, &iter, col, str, -1);
+
+		free(str_alloc);
+	}
+}
+
+static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
+					  GtkTreeIter *parent, int col, u64 total)
+{
+	struct rb_node *nd;
+	bool has_single_node = (rb_first(root) == rb_last(root));
+
+	for (nd = rb_first(root); nd; nd = rb_next(nd)) {
+		struct callchain_node *node;
+		struct callchain_list *chain;
+		GtkTreeIter iter, new_parent;
+		bool need_new_parent;
+		u64 child_total;
+
+		node = rb_entry(nd, struct callchain_node, rb_node);
 
 		new_parent = *parent;
 		need_new_parent = !has_single_node && (node->val_nr > 1);
@@ -116,7 +235,7 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 
 			gtk_tree_store_append(store, &iter, &new_parent);
 
-			scnprintf(buf, sizeof(buf), "%5.2f%%", percent);
+			callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
 			gtk_tree_store_set(store, &iter, 0, buf, -1);
 
 			callchain_list__sym_name(chain, buf, sizeof(buf), false);
@@ -138,11 +257,22 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 			child_total = total;
 
 		/* Now 'iter' contains info of the last callchain_list */
-		perf_gtk__add_callchain(&node->rb_root, store, &iter, col,
-					child_total);
+		perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
+					      child_total);
 	}
 }
 
+static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
+				    GtkTreeIter *parent, int col, u64 total)
+{
+	if (callchain_param.mode == CHAIN_FLAT)
+		perf_gtk__add_callchain_flat(root, store, parent, col, total);
+	else if (callchain_param.mode == CHAIN_FOLDED)
+		perf_gtk__add_callchain_folded(root, store, parent, col, total);
+	else
+		perf_gtk__add_callchain_graph(root, store, parent, col, total);
+}
+
 static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
 			     GtkTreeViewColumn *col __maybe_unused,
 			     gpointer user_data __maybe_unused)
@@ -188,7 +318,7 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 	col_idx = 0;
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, hists))
 			continue;
 
 		/*
@@ -238,7 +368,7 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 		col_idx = 0;
 
 		perf_hpp__for_each_format(fmt) {
-			if (perf_hpp__should_skip(fmt))
+			if (perf_hpp__should_skip(fmt, h->hists))
 				continue;
 
 			if (fmt->color)
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 5029ba2b55af..bf2a66e254ea 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -443,7 +443,6 @@ LIST_HEAD(perf_hpp__sort_list);
 
 void perf_hpp__init(void)
 {
-	struct list_head *list;
 	int i;
 
 	for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
@@ -484,17 +483,6 @@ void perf_hpp__init(void)
 
 	if (symbol_conf.show_total_period)
 		hpp_dimension__add_output(PERF_HPP__PERIOD);
-
-	/* prepend overhead field for backward compatiblity.  */
-	list = &perf_hpp__format[PERF_HPP__OVERHEAD].sort_list;
-	if (list_empty(list))
-		list_add(list, &perf_hpp__sort_list);
-
-	if (symbol_conf.cumulate_callchain) {
-		list = &perf_hpp__format[PERF_HPP__OVERHEAD_ACC].sort_list;
-		if (list_empty(list))
-			list_add(list, &perf_hpp__sort_list);
-	}
 }
 
 void perf_hpp__column_register(struct perf_hpp_fmt *format)
@@ -619,7 +607,7 @@ unsigned int hists__sort_list_width(struct hists *hists)
 	struct perf_hpp dummy_hpp;
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, hists))
 			continue;
 
 		if (first)
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index dfcbc90146ef..387110d50b00 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -34,10 +34,10 @@ static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
 	return ret;
 }
 
-static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
+static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
+				     struct callchain_list *chain,
 				     int depth, int depth_mask, int period,
-				     u64 total_samples, u64 hits,
-				     int left_margin)
+				     u64 total_samples, int left_margin)
 {
 	int i;
 	size_t ret = 0;
@@ -50,10 +50,9 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
 		else
 			ret += fprintf(fp, " ");
 		if (!period && i == depth - 1) {
-			double percent;
-
-			percent = hits * 100.0 / total_samples;
-			ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
+			ret += fprintf(fp, "--");
+			ret += callchain_node__fprintf_value(node, fp, total_samples);
+			ret += fprintf(fp, "--");
 		} else
 			ret += fprintf(fp, "%s", "          ");
 	}
@@ -82,13 +81,14 @@ static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 					 int depth_mask, int left_margin)
 {
 	struct rb_node *node, *next;
-	struct callchain_node *child;
+	struct callchain_node *child = NULL;
 	struct callchain_list *chain;
 	int new_depth_mask = depth_mask;
 	u64 remaining;
 	size_t ret = 0;
 	int i;
 	uint entries_printed = 0;
+	int cumul_count = 0;
 
 	remaining = total_samples;
 
@@ -100,6 +100,7 @@ static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 		child = rb_entry(node, struct callchain_node, rb_node);
 		cumul = callchain_cumul_hits(child);
 		remaining -= cumul;
+		cumul_count += callchain_cumul_counts(child);
 
 		/*
 		 * The depth mask manages the output of pipes that show
@@ -120,10 +121,9 @@ static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 						   left_margin);
 		i = 0;
 		list_for_each_entry(chain, &child->val, list) {
-			ret += ipchain__fprintf_graph(fp, chain, depth,
+			ret += ipchain__fprintf_graph(fp, child, chain, depth,
 						      new_depth_mask, i++,
 						      total_samples,
-						      cumul,
 						      left_margin);
 		}
 
@@ -143,14 +143,23 @@ static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 
 	if (callchain_param.mode == CHAIN_GRAPH_REL &&
 		remaining && remaining != total_samples) {
+		struct callchain_node rem_node = {
+			.hit = remaining,
+		};
 
 		if (!rem_sq_bracket)
 			return ret;
 
+		if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
+			rem_node.count = child->parent->children_count - cumul_count;
+			if (rem_node.count <= 0)
+				return ret;
+		}
+
 		new_depth_mask &= ~(1 << (depth - 1));
-		ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
+		ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
 					      new_depth_mask, 0, total_samples,
-					      remaining, left_margin);
+					      left_margin);
 	}
 
 	return ret;
@@ -243,12 +252,11 @@ static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
 	struct rb_node *rb_node = rb_first(tree);
 
 	while (rb_node) {
-		double percent;
-
 		chain = rb_entry(rb_node, struct callchain_node, rb_node);
-		percent = chain->hit * 100.0 / total_samples;
 
-		ret = percent_color_fprintf(fp, "           %6.2f%%\n", percent);
+		ret += fprintf(fp, "           ");
+		ret += callchain_node__fprintf_value(chain, fp, total_samples);
+		ret += fprintf(fp, "\n");
 		ret += __callchain__fprintf_flat(fp, chain, total_samples);
 		ret += fprintf(fp, "\n");
 		if (++entries_printed == callchain_param.print_limit)
@@ -260,6 +268,57 @@ static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
 	return ret;
 }
 
+static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
+{
+	const char *sep = symbol_conf.field_sep ?: ";";
+	struct callchain_list *chain;
+	size_t ret = 0;
+	char bf[1024];
+	bool first;
+
+	if (!node)
+		return 0;
+
+	ret += __callchain__fprintf_folded(fp, node->parent);
+
+	first = (ret == 0);
+	list_for_each_entry(chain, &node->val, list) {
+		if (chain->ip >= PERF_CONTEXT_MAX)
+			continue;
+		ret += fprintf(fp, "%s%s", first ? "" : sep,
+			       callchain_list__sym_name(chain,
+						bf, sizeof(bf), false));
+		first = false;
+	}
+
+	return ret;
+}
+
+static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
+					u64 total_samples)
+{
+	size_t ret = 0;
+	u32 entries_printed = 0;
+	struct callchain_node *chain;
+	struct rb_node *rb_node = rb_first(tree);
+
+	while (rb_node) {
+
+		chain = rb_entry(rb_node, struct callchain_node, rb_node);
+
+		ret += callchain_node__fprintf_value(chain, fp, total_samples);
+		ret += fprintf(fp, " ");
+		ret += __callchain__fprintf_folded(fp, chain);
+		ret += fprintf(fp, "\n");
+		if (++entries_printed == callchain_param.print_limit)
+			break;
+
+		rb_node = rb_next(rb_node);
+	}
+
+	return ret;
+}
+
 static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
 					    u64 total_samples, int left_margin,
 					    FILE *fp)
@@ -278,6 +337,9 @@ static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
 	case CHAIN_FLAT:
 		return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
 		break;
+	case CHAIN_FOLDED:
+		return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
+		break;
 	case CHAIN_NONE:
 		break;
 	default:
@@ -323,7 +385,7 @@ static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
 		return 0;
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, he->hists))
 			continue;
 
 		/*
@@ -402,7 +464,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 	fprintf(fp, "# ");
 
 	perf_hpp__for_each_format(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, hists))
 			continue;
 
 		if (!first)
@@ -428,7 +490,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 	perf_hpp__for_each_format(fmt) {
 		unsigned int i;
 
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, hists))
 			continue;
 
 		if (!first)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 591b3fe3ed49..5eec53a3f4ac 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -6,24 +6,20 @@ libperf-y += config.o
 libperf-y += ctype.o
 libperf-y += db-export.o
 libperf-y += env.o
-libperf-y += environment.o
 libperf-y += event.o
 libperf-y += evlist.o
 libperf-y += evsel.o
-libperf-y += exec_cmd.o
-libperf-y += find_next_bit.o
-libperf-y += help.o
+libperf-y += find_bit.o
 libperf-y += kallsyms.o
 libperf-y += levenshtein.o
 libperf-y += llvm-utils.o
-libperf-y += parse-options.o
 libperf-y += parse-events.o
 libperf-y += perf_regs.o
 libperf-y += path.o
 libperf-y += rbtree.o
+libperf-y += libstring.o
 libperf-y += bitmap.o
 libperf-y += hweight.o
-libperf-y += run-command.o
 libperf-y += quote.o
 libperf-y += strbuf.o
 libperf-y += string.o
@@ -32,11 +28,9 @@ libperf-y += strfilter.o
 libperf-y += top.o
 libperf-y += usage.o
 libperf-y += wrapper.o
-libperf-y += sigchain.o
 libperf-y += dso.o
 libperf-y += symbol.o
 libperf-y += color.o
-libperf-y += pager.o
 libperf-y += header.o
 libperf-y += callchain.o
 libperf-y += values.o
@@ -86,8 +80,11 @@ libperf-$(CONFIG_AUXTRACE) += intel-pt.o
 libperf-$(CONFIG_AUXTRACE) += intel-bts.o
 libperf-y += parse-branch-options.o
 libperf-y += parse-regs-options.o
+libperf-y += term.o
+libperf-y += help-unknown-cmd.o
 
 libperf-$(CONFIG_LIBBPF) += bpf-loader.o
+libperf-$(CONFIG_BPF_PROLOGUE) += bpf-prologue.o
 libperf-$(CONFIG_LIBELF) += symbol-elf.o
 libperf-$(CONFIG_LIBELF) += probe-file.o
 libperf-$(CONFIG_LIBELF) += probe-event.o
@@ -110,7 +107,6 @@ libperf-$(CONFIG_ZLIB) += zlib.o
 libperf-$(CONFIG_LZMA) += lzma.o
 
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
-CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 
 $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
 	$(call rule_mkdir)
@@ -136,8 +132,10 @@ CFLAGS_pmu-bison.o          += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w
 $(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
 $(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
 
-CFLAGS_find_next_bit.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
+CFLAGS_bitmap.o        += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
+CFLAGS_find_bit.o      += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_rbtree.o        += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
+CFLAGS_libstring.o     += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_hweight.o       += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_parse-events.o  += -Wno-redundant-decls
 
@@ -145,7 +143,11 @@ $(OUTPUT)util/kallsyms.o: ../lib/symbol/kallsyms.c FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
-$(OUTPUT)util/find_next_bit.o: ../lib/util/find_next_bit.c FORCE
+$(OUTPUT)util/bitmap.o: ../lib/bitmap.c FORCE
+	$(call rule_mkdir)
+	$(call if_changed_dep,cc_o_c)
+
+$(OUTPUT)util/find_bit.o: ../lib/find_bit.c FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
@@ -153,6 +155,10 @@ $(OUTPUT)util/rbtree.o: ../lib/rbtree.c FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
+$(OUTPUT)util/libstring.o: ../lib/string.c FORCE
+	$(call rule_mkdir)
+	$(call if_changed_dep,cc_o_c)
+
 $(OUTPUT)util/hweight.o: ../lib/hweight.c FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 1dd1949b0e79..b795b6994144 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -65,6 +65,11 @@ static int call__parse(struct ins_operands *ops)
 
 	name++;
 
+#ifdef __arm__
+	if (strchr(name, '+'))
+		return -1;
+#endif
+
 	tok = strchr(name, '>');
 	if (tok == NULL)
 		return -1;
@@ -246,7 +251,11 @@ static int mov__parse(struct ins_operands *ops)
 		return -1;
 
 	target = ++s;
+#ifdef __arm__
+	comment = strchr(s, ';');
+#else
 	comment = strchr(s, '#');
+#endif
 
 	if (comment != NULL)
 		s = comment - 1;
@@ -354,6 +363,20 @@ static struct ins instructions[] = {
 	{ .name = "addq",  .ops  = &mov_ops, },
 	{ .name = "addw",  .ops  = &mov_ops, },
 	{ .name = "and",   .ops  = &mov_ops, },
+#ifdef __arm__
+	{ .name = "b",     .ops  = &jump_ops, }, // might also be a call
+	{ .name = "bcc",   .ops  = &jump_ops, },
+	{ .name = "bcs",   .ops  = &jump_ops, },
+	{ .name = "beq",   .ops  = &jump_ops, },
+	{ .name = "bge",   .ops  = &jump_ops, },
+	{ .name = "bgt",   .ops  = &jump_ops, },
+	{ .name = "bhi",   .ops  = &jump_ops, },
+	{ .name = "bl",    .ops  = &call_ops, },
+	{ .name = "blt",   .ops  = &jump_ops, },
+	{ .name = "bls",   .ops  = &jump_ops, },
+	{ .name = "blx",   .ops  = &call_ops, },
+	{ .name = "bne",   .ops  = &jump_ops, },
+#endif
 	{ .name = "bts",   .ops  = &mov_ops, },
 	{ .name = "call",  .ops  = &call_ops, },
 	{ .name = "callq", .ops  = &call_ops, },
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 7f10430af39c..360fda01f3b0 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -45,7 +45,7 @@
 #include "event.h"
 #include "session.h"
 #include "debug.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 
 #include "intel-pt.h"
 #include "intel-bts.h"
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 4c50411371db..540a7efa657e 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -5,11 +5,15 @@
  * Copyright (C) 2015 Huawei Inc.
  */
 
+#include <linux/bpf.h>
 #include <bpf/libbpf.h>
 #include <linux/err.h>
+#include <linux/string.h>
 #include "perf.h"
 #include "debug.h"
 #include "bpf-loader.h"
+#include "bpf-prologue.h"
+#include "llvm-utils.h"
 #include "probe-event.h"
 #include "probe-finder.h" // for MAX_PROBES
 #include "llvm-utils.h"
@@ -32,6 +36,10 @@ DEFINE_PRINT_FN(debug, 1)
 
 struct bpf_prog_priv {
 	struct perf_probe_event pev;
+	bool need_prologue;
+	struct bpf_insn *insns_buf;
+	int nr_types;
+	int *type_mapping;
 };
 
 static bool libbpf_initialized;
@@ -106,10 +114,178 @@ bpf_prog_priv__clear(struct bpf_program *prog __maybe_unused,
 	struct bpf_prog_priv *priv = _priv;
 
 	cleanup_perf_probe_events(&priv->pev, 1);
+	zfree(&priv->insns_buf);
+	zfree(&priv->type_mapping);
 	free(priv);
 }
 
 static int
+prog_config__exec(const char *value, struct perf_probe_event *pev)
+{
+	pev->uprobes = true;
+	pev->target = strdup(value);
+	if (!pev->target)
+		return -ENOMEM;
+	return 0;
+}
+
+static int
+prog_config__module(const char *value, struct perf_probe_event *pev)
+{
+	pev->uprobes = false;
+	pev->target = strdup(value);
+	if (!pev->target)
+		return -ENOMEM;
+	return 0;
+}
+
+static int
+prog_config__bool(const char *value, bool *pbool, bool invert)
+{
+	int err;
+	bool bool_value;
+
+	if (!pbool)
+		return -EINVAL;
+
+	err = strtobool(value, &bool_value);
+	if (err)
+		return err;
+
+	*pbool = invert ? !bool_value : bool_value;
+	return 0;
+}
+
+static int
+prog_config__inlines(const char *value,
+		     struct perf_probe_event *pev __maybe_unused)
+{
+	return prog_config__bool(value, &probe_conf.no_inlines, true);
+}
+
+static int
+prog_config__force(const char *value,
+		   struct perf_probe_event *pev __maybe_unused)
+{
+	return prog_config__bool(value, &probe_conf.force_add, false);
+}
+
+static struct {
+	const char *key;
+	const char *usage;
+	const char *desc;
+	int (*func)(const char *, struct perf_probe_event *);
+} bpf_prog_config_terms[] = {
+	{
+		.key	= "exec",
+		.usage	= "exec=<full path of file>",
+		.desc	= "Set uprobe target",
+		.func	= prog_config__exec,
+	},
+	{
+		.key	= "module",
+		.usage	= "module=<module name>    ",
+		.desc	= "Set kprobe module",
+		.func	= prog_config__module,
+	},
+	{
+		.key	= "inlines",
+		.usage	= "inlines=[yes|no]        ",
+		.desc	= "Probe at inline symbol",
+		.func	= prog_config__inlines,
+	},
+	{
+		.key	= "force",
+		.usage	= "force=[yes|no]          ",
+		.desc	= "Forcibly add events with existing name",
+		.func	= prog_config__force,
+	},
+};
+
+static int
+do_prog_config(const char *key, const char *value,
+	       struct perf_probe_event *pev)
+{
+	unsigned int i;
+
+	pr_debug("config bpf program: %s=%s\n", key, value);
+	for (i = 0; i < ARRAY_SIZE(bpf_prog_config_terms); i++)
+		if (strcmp(key, bpf_prog_config_terms[i].key) == 0)
+			return bpf_prog_config_terms[i].func(value, pev);
+
+	pr_debug("BPF: ERROR: invalid program config option: %s=%s\n",
+		 key, value);
+
+	pr_debug("\nHint: Valid options are:\n");
+	for (i = 0; i < ARRAY_SIZE(bpf_prog_config_terms); i++)
+		pr_debug("\t%s:\t%s\n", bpf_prog_config_terms[i].usage,
+			 bpf_prog_config_terms[i].desc);
+	pr_debug("\n");
+
+	return -BPF_LOADER_ERRNO__PROGCONF_TERM;
+}
+
+static const char *
+parse_prog_config_kvpair(const char *config_str, struct perf_probe_event *pev)
+{
+	char *text = strdup(config_str);
+	char *sep, *line;
+	const char *main_str = NULL;
+	int err = 0;
+
+	if (!text) {
+		pr_debug("No enough memory: dup config_str failed\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	line = text;
+	while ((sep = strchr(line, ';'))) {
+		char *equ;
+
+		*sep = '\0';
+		equ = strchr(line, '=');
+		if (!equ) {
+			pr_warning("WARNING: invalid config in BPF object: %s\n",
+				   line);
+			pr_warning("\tShould be 'key=value'.\n");
+			goto nextline;
+		}
+		*equ = '\0';
+
+		err = do_prog_config(line, equ + 1, pev);
+		if (err)
+			break;
+nextline:
+		line = sep + 1;
+	}
+
+	if (!err)
+		main_str = config_str + (line - text);
+	free(text);
+
+	return err ? ERR_PTR(err) : main_str;
+}
+
+static int
+parse_prog_config(const char *config_str, struct perf_probe_event *pev)
+{
+	int err;
+	const char *main_str = parse_prog_config_kvpair(config_str, pev);
+
+	if (IS_ERR(main_str))
+		return PTR_ERR(main_str);
+
+	err = parse_perf_probe_command(main_str, pev);
+	if (err < 0) {
+		pr_debug("bpf: '%s' is not a valid config string\n",
+			 config_str);
+		/* parse failed, don't need clear pev. */
+		return -BPF_LOADER_ERRNO__CONFIG;
+	}
+	return 0;
+}
+
+static int
 config_bpf_program(struct bpf_program *prog)
 {
 	struct perf_probe_event *pev = NULL;
@@ -117,6 +293,10 @@ config_bpf_program(struct bpf_program *prog)
 	const char *config_str;
 	int err;
 
+	/* Initialize per-program probing setting */
+	probe_conf.no_inlines = false;
+	probe_conf.force_add = false;
+
 	config_str = bpf_program__title(prog, false);
 	if (IS_ERR(config_str)) {
 		pr_debug("bpf: unable to get title for program\n");
@@ -131,13 +311,9 @@ config_bpf_program(struct bpf_program *prog)
 	pev = &priv->pev;
 
 	pr_debug("bpf: config program '%s'\n", config_str);
-	err = parse_perf_probe_command(config_str, pev);
-	if (err < 0) {
-		pr_debug("bpf: '%s' is not a valid config string\n",
-			 config_str);
-		err = -BPF_LOADER_ERRNO__CONFIG;
+	err = parse_prog_config(config_str, pev);
+	if (err)
 		goto errout;
-	}
 
 	if (pev->group && strcmp(pev->group, PERF_BPF_PROBE_GROUP)) {
 		pr_debug("bpf: '%s': group for event is set and not '%s'.\n",
@@ -197,6 +373,220 @@ static int bpf__prepare_probe(void)
 	return err;
 }
 
+static int
+preproc_gen_prologue(struct bpf_program *prog, int n,
+		     struct bpf_insn *orig_insns, int orig_insns_cnt,
+		     struct bpf_prog_prep_result *res)
+{
+	struct probe_trace_event *tev;
+	struct perf_probe_event *pev;
+	struct bpf_prog_priv *priv;
+	struct bpf_insn *buf;
+	size_t prologue_cnt = 0;
+	int i, err;
+
+	err = bpf_program__get_private(prog, (void **)&priv);
+	if (err || !priv)
+		goto errout;
+
+	pev = &priv->pev;
+
+	if (n < 0 || n >= priv->nr_types)
+		goto errout;
+
+	/* Find a tev belongs to that type */
+	for (i = 0; i < pev->ntevs; i++) {
+		if (priv->type_mapping[i] == n)
+			break;
+	}
+
+	if (i >= pev->ntevs) {
+		pr_debug("Internal error: prologue type %d not found\n", n);
+		return -BPF_LOADER_ERRNO__PROLOGUE;
+	}
+
+	tev = &pev->tevs[i];
+
+	buf = priv->insns_buf;
+	err = bpf__gen_prologue(tev->args, tev->nargs,
+				buf, &prologue_cnt,
+				BPF_MAXINSNS - orig_insns_cnt);
+	if (err) {
+		const char *title;
+
+		title = bpf_program__title(prog, false);
+		if (!title)
+			title = "[unknown]";
+
+		pr_debug("Failed to generate prologue for program %s\n",
+			 title);
+		return err;
+	}
+
+	memcpy(&buf[prologue_cnt], orig_insns,
+	       sizeof(struct bpf_insn) * orig_insns_cnt);
+
+	res->new_insn_ptr = buf;
+	res->new_insn_cnt = prologue_cnt + orig_insns_cnt;
+	res->pfd = NULL;
+	return 0;
+
+errout:
+	pr_debug("Internal error in preproc_gen_prologue\n");
+	return -BPF_LOADER_ERRNO__PROLOGUE;
+}
+
+/*
+ * compare_tev_args is reflexive, transitive and antisymmetric.
+ * I can proof it but this margin is too narrow to contain.
+ */
+static int compare_tev_args(const void *ptev1, const void *ptev2)
+{
+	int i, ret;
+	const struct probe_trace_event *tev1 =
+		*(const struct probe_trace_event **)ptev1;
+	const struct probe_trace_event *tev2 =
+		*(const struct probe_trace_event **)ptev2;
+
+	ret = tev2->nargs - tev1->nargs;
+	if (ret)
+		return ret;
+
+	for (i = 0; i < tev1->nargs; i++) {
+		struct probe_trace_arg *arg1, *arg2;
+		struct probe_trace_arg_ref *ref1, *ref2;
+
+		arg1 = &tev1->args[i];
+		arg2 = &tev2->args[i];
+
+		ret = strcmp(arg1->value, arg2->value);
+		if (ret)
+			return ret;
+
+		ref1 = arg1->ref;
+		ref2 = arg2->ref;
+
+		while (ref1 && ref2) {
+			ret = ref2->offset - ref1->offset;
+			if (ret)
+				return ret;
+
+			ref1 = ref1->next;
+			ref2 = ref2->next;
+		}
+
+		if (ref1 || ref2)
+			return ref2 ? 1 : -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Assign a type number to each tevs in a pev.
+ * mapping is an array with same slots as tevs in that pev.
+ * nr_types will be set to number of types.
+ */
+static int map_prologue(struct perf_probe_event *pev, int *mapping,
+			int *nr_types)
+{
+	int i, type = 0;
+	struct probe_trace_event **ptevs;
+
+	size_t array_sz = sizeof(*ptevs) * pev->ntevs;
+
+	ptevs = malloc(array_sz);
+	if (!ptevs) {
+		pr_debug("No ehough memory: alloc ptevs failed\n");
+		return -ENOMEM;
+	}
+
+	pr_debug("In map_prologue, ntevs=%d\n", pev->ntevs);
+	for (i = 0; i < pev->ntevs; i++)
+		ptevs[i] = &pev->tevs[i];
+
+	qsort(ptevs, pev->ntevs, sizeof(*ptevs),
+	      compare_tev_args);
+
+	for (i = 0; i < pev->ntevs; i++) {
+		int n;
+
+		n = ptevs[i] - pev->tevs;
+		if (i == 0) {
+			mapping[n] = type;
+			pr_debug("mapping[%d]=%d\n", n, type);
+			continue;
+		}
+
+		if (compare_tev_args(ptevs + i, ptevs + i - 1) == 0)
+			mapping[n] = type;
+		else
+			mapping[n] = ++type;
+
+		pr_debug("mapping[%d]=%d\n", n, mapping[n]);
+	}
+	free(ptevs);
+	*nr_types = type + 1;
+
+	return 0;
+}
+
+static int hook_load_preprocessor(struct bpf_program *prog)
+{
+	struct perf_probe_event *pev;
+	struct bpf_prog_priv *priv;
+	bool need_prologue = false;
+	int err, i;
+
+	err = bpf_program__get_private(prog, (void **)&priv);
+	if (err || !priv) {
+		pr_debug("Internal error when hook preprocessor\n");
+		return -BPF_LOADER_ERRNO__INTERNAL;
+	}
+
+	pev = &priv->pev;
+	for (i = 0; i < pev->ntevs; i++) {
+		struct probe_trace_event *tev = &pev->tevs[i];
+
+		if (tev->nargs > 0) {
+			need_prologue = true;
+			break;
+		}
+	}
+
+	/*
+	 * Since all tevs don't have argument, we don't need generate
+	 * prologue.
+	 */
+	if (!need_prologue) {
+		priv->need_prologue = false;
+		return 0;
+	}
+
+	priv->need_prologue = true;
+	priv->insns_buf = malloc(sizeof(struct bpf_insn) * BPF_MAXINSNS);
+	if (!priv->insns_buf) {
+		pr_debug("No enough memory: alloc insns_buf failed\n");
+		return -ENOMEM;
+	}
+
+	priv->type_mapping = malloc(sizeof(int) * pev->ntevs);
+	if (!priv->type_mapping) {
+		pr_debug("No enough memory: alloc type_mapping failed\n");
+		return -ENOMEM;
+	}
+	memset(priv->type_mapping, -1,
+	       sizeof(int) * pev->ntevs);
+
+	err = map_prologue(pev, priv->type_mapping, &priv->nr_types);
+	if (err)
+		return err;
+
+	err = bpf_program__set_prep(prog, priv->nr_types,
+				    preproc_gen_prologue);
+	return err;
+}
+
 int bpf__probe(struct bpf_object *obj)
 {
 	int err = 0;
@@ -231,6 +621,18 @@ int bpf__probe(struct bpf_object *obj)
 			pr_debug("bpf_probe: failed to apply perf probe events");
 			goto out;
 		}
+
+		/*
+		 * After probing, let's consider prologue, which
+		 * adds program fetcher to BPF programs.
+		 *
+		 * hook_load_preprocessorr() hooks pre-processor
+		 * to bpf_program, let it generate prologue
+		 * dynamically during loading.
+		 */
+		err = hook_load_preprocessor(prog);
+		if (err)
+			goto out;
 	}
 out:
 	return err < 0 ? err : 0;
@@ -314,7 +716,14 @@ int bpf__foreach_tev(struct bpf_object *obj,
 		for (i = 0; i < pev->ntevs; i++) {
 			tev = &pev->tevs[i];
 
-			fd = bpf_program__fd(prog);
+			if (priv->need_prologue) {
+				int type = priv->type_mapping[i];
+
+				fd = bpf_program__nth_fd(prog, type);
+			} else {
+				fd = bpf_program__fd(prog);
+			}
+
 			if (fd < 0) {
 				pr_debug("bpf: failed to get file descriptor\n");
 				return fd;
@@ -340,6 +749,10 @@ static const char *bpf_loader_strerror_table[NR_ERRNO] = {
 	[ERRCODE_OFFSET(EVENTNAME)]	= "No event name found in config string",
 	[ERRCODE_OFFSET(INTERNAL)]	= "BPF loader internal error",
 	[ERRCODE_OFFSET(COMPILE)]	= "Error when compiling BPF scriptlet",
+	[ERRCODE_OFFSET(PROGCONF_TERM)]	= "Invalid program config term in config string",
+	[ERRCODE_OFFSET(PROLOGUE)]	= "Failed to generate prologue",
+	[ERRCODE_OFFSET(PROLOGUE2BIG)]	= "Prologue too big for program",
+	[ERRCODE_OFFSET(PROLOGUEOOB)]	= "Offset out of bound for prologue",
 };
 
 static int
@@ -420,7 +833,11 @@ int bpf__strerror_probe(struct bpf_object *obj __maybe_unused,
 			int err, char *buf, size_t size)
 {
 	bpf__strerror_head(err, buf, size);
-	bpf__strerror_entry(EEXIST, "Probe point exist. Try use 'perf probe -d \"*\"'");
+	case BPF_LOADER_ERRNO__PROGCONF_TERM: {
+		scnprintf(buf, size, "%s (add -v to see detail)", emsg);
+		break;
+	}
+	bpf__strerror_entry(EEXIST, "Probe point exist. Try 'perf probe -d \"*\"' and set 'force=yes'");
 	bpf__strerror_entry(EACCES, "You need to be root");
 	bpf__strerror_entry(EPERM, "You need to be root, and /proc/sys/kernel/kptr_restrict should be 0");
 	bpf__strerror_entry(ENOENT, "You need to check probing points in BPF file");
diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h
index 9caf3ae4acf3..6fdc0457e2b6 100644
--- a/tools/perf/util/bpf-loader.h
+++ b/tools/perf/util/bpf-loader.h
@@ -20,6 +20,10 @@ enum bpf_loader_errno {
 	BPF_LOADER_ERRNO__EVENTNAME,	/* Event name is missing */
 	BPF_LOADER_ERRNO__INTERNAL,	/* BPF loader internal error */
 	BPF_LOADER_ERRNO__COMPILE,	/* Error when compiling BPF scriptlet */
+	BPF_LOADER_ERRNO__PROGCONF_TERM,/* Invalid program config term in config string */
+	BPF_LOADER_ERRNO__PROLOGUE,	/* Failed to generate prologue */
+	BPF_LOADER_ERRNO__PROLOGUE2BIG,	/* Prologue too big for program */
+	BPF_LOADER_ERRNO__PROLOGUEOOB,	/* Offset out of bound for prologue */
 	__BPF_LOADER_ERRNO__END,
 };
 
diff --git a/tools/perf/util/bpf-prologue.c b/tools/perf/util/bpf-prologue.c
new file mode 100644
index 000000000000..6cdbee119ceb
--- /dev/null
+++ b/tools/perf/util/bpf-prologue.c
@@ -0,0 +1,455 @@
+/*
+ * bpf-prologue.c
+ *
+ * Copyright (C) 2015 He Kuang <hekuang@huawei.com>
+ * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015 Huawei Inc.
+ */
+
+#include <bpf/libbpf.h>
+#include "perf.h"
+#include "debug.h"
+#include "bpf-loader.h"
+#include "bpf-prologue.h"
+#include "probe-finder.h"
+#include <dwarf-regs.h>
+#include <linux/filter.h>
+
+#define BPF_REG_SIZE		8
+
+#define JMP_TO_ERROR_CODE	-1
+#define JMP_TO_SUCCESS_CODE	-2
+#define JMP_TO_USER_CODE	-3
+
+struct bpf_insn_pos {
+	struct bpf_insn *begin;
+	struct bpf_insn *end;
+	struct bpf_insn *pos;
+};
+
+static inline int
+pos_get_cnt(struct bpf_insn_pos *pos)
+{
+	return pos->pos - pos->begin;
+}
+
+static int
+append_insn(struct bpf_insn new_insn, struct bpf_insn_pos *pos)
+{
+	if (!pos->pos)
+		return -BPF_LOADER_ERRNO__PROLOGUE2BIG;
+
+	if (pos->pos + 1 >= pos->end) {
+		pr_err("bpf prologue: prologue too long\n");
+		pos->pos = NULL;
+		return -BPF_LOADER_ERRNO__PROLOGUE2BIG;
+	}
+
+	*(pos->pos)++ = new_insn;
+	return 0;
+}
+
+static int
+check_pos(struct bpf_insn_pos *pos)
+{
+	if (!pos->pos || pos->pos >= pos->end)
+		return -BPF_LOADER_ERRNO__PROLOGUE2BIG;
+	return 0;
+}
+
+/* Give it a shorter name */
+#define ins(i, p) append_insn((i), (p))
+
+/*
+ * Give a register name (in 'reg'), generate instruction to
+ * load register into an eBPF register rd:
+ *   'ldd target_reg, offset(ctx_reg)', where:
+ * ctx_reg is pre initialized to pointer of 'struct pt_regs'.
+ */
+static int
+gen_ldx_reg_from_ctx(struct bpf_insn_pos *pos, int ctx_reg,
+		     const char *reg, int target_reg)
+{
+	int offset = regs_query_register_offset(reg);
+
+	if (offset < 0) {
+		pr_err("bpf: prologue: failed to get register %s\n",
+		       reg);
+		return offset;
+	}
+	ins(BPF_LDX_MEM(BPF_DW, target_reg, ctx_reg, offset), pos);
+
+	return check_pos(pos);
+}
+
+/*
+ * Generate a BPF_FUNC_probe_read function call.
+ *
+ * src_base_addr_reg is a register holding base address,
+ * dst_addr_reg is a register holding dest address (on stack),
+ * result is:
+ *
+ *  *[dst_addr_reg] = *([src_base_addr_reg] + offset)
+ *
+ * Arguments of BPF_FUNC_probe_read:
+ *     ARG1: ptr to stack (dest)
+ *     ARG2: size (8)
+ *     ARG3: unsafe ptr (src)
+ */
+static int
+gen_read_mem(struct bpf_insn_pos *pos,
+	     int src_base_addr_reg,
+	     int dst_addr_reg,
+	     long offset)
+{
+	/* mov arg3, src_base_addr_reg */
+	if (src_base_addr_reg != BPF_REG_ARG3)
+		ins(BPF_MOV64_REG(BPF_REG_ARG3, src_base_addr_reg), pos);
+	/* add arg3, #offset */
+	if (offset)
+		ins(BPF_ALU64_IMM(BPF_ADD, BPF_REG_ARG3, offset), pos);
+
+	/* mov arg2, #reg_size */
+	ins(BPF_ALU64_IMM(BPF_MOV, BPF_REG_ARG2, BPF_REG_SIZE), pos);
+
+	/* mov arg1, dst_addr_reg */
+	if (dst_addr_reg != BPF_REG_ARG1)
+		ins(BPF_MOV64_REG(BPF_REG_ARG1, dst_addr_reg), pos);
+
+	/* Call probe_read  */
+	ins(BPF_EMIT_CALL(BPF_FUNC_probe_read), pos);
+	/*
+	 * Error processing: if read fail, goto error code,
+	 * will be relocated. Target should be the start of
+	 * error processing code.
+	 */
+	ins(BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, JMP_TO_ERROR_CODE),
+	    pos);
+
+	return check_pos(pos);
+}
+
+/*
+ * Each arg should be bare register. Fetch and save them into argument
+ * registers (r3 - r5).
+ *
+ * BPF_REG_1 should have been initialized with pointer to
+ * 'struct pt_regs'.
+ */
+static int
+gen_prologue_fastpath(struct bpf_insn_pos *pos,
+		      struct probe_trace_arg *args, int nargs)
+{
+	int i, err = 0;
+
+	for (i = 0; i < nargs; i++) {
+		err = gen_ldx_reg_from_ctx(pos, BPF_REG_1, args[i].value,
+					   BPF_PROLOGUE_START_ARG_REG + i);
+		if (err)
+			goto errout;
+	}
+
+	return check_pos(pos);
+errout:
+	return err;
+}
+
+/*
+ * Slow path:
+ *   At least one argument has the form of 'offset($rx)'.
+ *
+ * Following code first stores them into stack, then loads all of then
+ * to r2 - r5.
+ * Before final loading, the final result should be:
+ *
+ * low address
+ * BPF_REG_FP - 24  ARG3
+ * BPF_REG_FP - 16  ARG2
+ * BPF_REG_FP - 8   ARG1
+ * BPF_REG_FP
+ * high address
+ *
+ * For each argument (described as: offn(...off2(off1(reg)))),
+ * generates following code:
+ *
+ *  r7 <- fp
+ *  r7 <- r7 - stack_offset  // Ideal code should initialize r7 using
+ *                           // fp before generating args. However,
+ *                           // eBPF won't regard r7 as stack pointer
+ *                           // if it is generated by minus 8 from
+ *                           // another stack pointer except fp.
+ *                           // This is why we have to set r7
+ *                           // to fp for each variable.
+ *  r3 <- value of 'reg'-> generated using gen_ldx_reg_from_ctx()
+ *  (r7) <- r3       // skip following instructions for bare reg
+ *  r3 <- r3 + off1  . // skip if off1 == 0
+ *  r2 <- 8           \
+ *  r1 <- r7           |-> generated by gen_read_mem()
+ *  call probe_read    /
+ *  jnei r0, 0, err  ./
+ *  r3 <- (r7)
+ *  r3 <- r3 + off2  . // skip if off2 == 0
+ *  r2 <- 8           \  // r2 may be broken by probe_read, so set again
+ *  r1 <- r7           |-> generated by gen_read_mem()
+ *  call probe_read    /
+ *  jnei r0, 0, err  ./
+ *  ...
+ */
+static int
+gen_prologue_slowpath(struct bpf_insn_pos *pos,
+		      struct probe_trace_arg *args, int nargs)
+{
+	int err, i;
+
+	for (i = 0; i < nargs; i++) {
+		struct probe_trace_arg *arg = &args[i];
+		const char *reg = arg->value;
+		struct probe_trace_arg_ref *ref = NULL;
+		int stack_offset = (i + 1) * -8;
+
+		pr_debug("prologue: fetch arg %d, base reg is %s\n",
+			 i, reg);
+
+		/* value of base register is stored into ARG3 */
+		err = gen_ldx_reg_from_ctx(pos, BPF_REG_CTX, reg,
+					   BPF_REG_ARG3);
+		if (err) {
+			pr_err("prologue: failed to get offset of register %s\n",
+			       reg);
+			goto errout;
+		}
+
+		/* Make r7 the stack pointer. */
+		ins(BPF_MOV64_REG(BPF_REG_7, BPF_REG_FP), pos);
+		/* r7 += -8 */
+		ins(BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, stack_offset), pos);
+		/*
+		 * Store r3 (base register) onto stack
+		 * Ensure fp[offset] is set.
+		 * fp is the only valid base register when storing
+		 * into stack. We are not allowed to use r7 as base
+		 * register here.
+		 */
+		ins(BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_ARG3,
+				stack_offset), pos);
+
+		ref = arg->ref;
+		while (ref) {
+			pr_debug("prologue: arg %d: offset %ld\n",
+				 i, ref->offset);
+			err = gen_read_mem(pos, BPF_REG_3, BPF_REG_7,
+					   ref->offset);
+			if (err) {
+				pr_err("prologue: failed to generate probe_read function call\n");
+				goto errout;
+			}
+
+			ref = ref->next;
+			/*
+			 * Load previous result into ARG3. Use
+			 * BPF_REG_FP instead of r7 because verifier
+			 * allows FP based addressing only.
+			 */
+			if (ref)
+				ins(BPF_LDX_MEM(BPF_DW, BPF_REG_ARG3,
+						BPF_REG_FP, stack_offset), pos);
+		}
+	}
+
+	/* Final pass: read to registers */
+	for (i = 0; i < nargs; i++)
+		ins(BPF_LDX_MEM(BPF_DW, BPF_PROLOGUE_START_ARG_REG + i,
+				BPF_REG_FP, -BPF_REG_SIZE * (i + 1)), pos);
+
+	ins(BPF_JMP_IMM(BPF_JA, BPF_REG_0, 0, JMP_TO_SUCCESS_CODE), pos);
+
+	return check_pos(pos);
+errout:
+	return err;
+}
+
+static int
+prologue_relocate(struct bpf_insn_pos *pos, struct bpf_insn *error_code,
+		  struct bpf_insn *success_code, struct bpf_insn *user_code)
+{
+	struct bpf_insn *insn;
+
+	if (check_pos(pos))
+		return -BPF_LOADER_ERRNO__PROLOGUE2BIG;
+
+	for (insn = pos->begin; insn < pos->pos; insn++) {
+		struct bpf_insn *target;
+		u8 class = BPF_CLASS(insn->code);
+		u8 opcode;
+
+		if (class != BPF_JMP)
+			continue;
+		opcode = BPF_OP(insn->code);
+		if (opcode == BPF_CALL)
+			continue;
+
+		switch (insn->off) {
+		case JMP_TO_ERROR_CODE:
+			target = error_code;
+			break;
+		case JMP_TO_SUCCESS_CODE:
+			target = success_code;
+			break;
+		case JMP_TO_USER_CODE:
+			target = user_code;
+			break;
+		default:
+			pr_err("bpf prologue: internal error: relocation failed\n");
+			return -BPF_LOADER_ERRNO__PROLOGUE;
+		}
+
+		insn->off = target - (insn + 1);
+	}
+	return 0;
+}
+
+int bpf__gen_prologue(struct probe_trace_arg *args, int nargs,
+		      struct bpf_insn *new_prog, size_t *new_cnt,
+		      size_t cnt_space)
+{
+	struct bpf_insn *success_code = NULL;
+	struct bpf_insn *error_code = NULL;
+	struct bpf_insn *user_code = NULL;
+	struct bpf_insn_pos pos;
+	bool fastpath = true;
+	int err = 0, i;
+
+	if (!new_prog || !new_cnt)
+		return -EINVAL;
+
+	if (cnt_space > BPF_MAXINSNS)
+		cnt_space = BPF_MAXINSNS;
+
+	pos.begin = new_prog;
+	pos.end = new_prog + cnt_space;
+	pos.pos = new_prog;
+
+	if (!nargs) {
+		ins(BPF_ALU64_IMM(BPF_MOV, BPF_PROLOGUE_FETCH_RESULT_REG, 0),
+		    &pos);
+
+		if (check_pos(&pos))
+			goto errout;
+
+		*new_cnt = pos_get_cnt(&pos);
+		return 0;
+	}
+
+	if (nargs > BPF_PROLOGUE_MAX_ARGS) {
+		pr_warning("bpf: prologue: %d arguments are dropped\n",
+			   nargs - BPF_PROLOGUE_MAX_ARGS);
+		nargs = BPF_PROLOGUE_MAX_ARGS;
+	}
+
+	/* First pass: validation */
+	for (i = 0; i < nargs; i++) {
+		struct probe_trace_arg_ref *ref = args[i].ref;
+
+		if (args[i].value[0] == '@') {
+			/* TODO: fetch global variable */
+			pr_err("bpf: prologue: global %s%+ld not support\n",
+				args[i].value, ref ? ref->offset : 0);
+			return -ENOTSUP;
+		}
+
+		while (ref) {
+			/* fastpath is true if all args has ref == NULL */
+			fastpath = false;
+
+			/*
+			 * Instruction encodes immediate value using
+			 * s32, ref->offset is long. On systems which
+			 * can't fill long in s32, refuse to process if
+			 * ref->offset too large (or small).
+			 */
+#ifdef __LP64__
+#define OFFSET_MAX	((1LL << 31) - 1)
+#define OFFSET_MIN	((1LL << 31) * -1)
+			if (ref->offset > OFFSET_MAX ||
+					ref->offset < OFFSET_MIN) {
+				pr_err("bpf: prologue: offset out of bound: %ld\n",
+				       ref->offset);
+				return -BPF_LOADER_ERRNO__PROLOGUEOOB;
+			}
+#endif
+			ref = ref->next;
+		}
+	}
+	pr_debug("prologue: pass validation\n");
+
+	if (fastpath) {
+		/* If all variables are registers... */
+		pr_debug("prologue: fast path\n");
+		err = gen_prologue_fastpath(&pos, args, nargs);
+		if (err)
+			goto errout;
+	} else {
+		pr_debug("prologue: slow path\n");
+
+		/* Initialization: move ctx to a callee saved register. */
+		ins(BPF_MOV64_REG(BPF_REG_CTX, BPF_REG_ARG1), &pos);
+
+		err = gen_prologue_slowpath(&pos, args, nargs);
+		if (err)
+			goto errout;
+		/*
+		 * start of ERROR_CODE (only slow pass needs error code)
+		 *   mov r2 <- 1  // r2 is error number
+		 *   mov r3 <- 0  // r3, r4... should be touched or
+		 *                // verifier would complain
+		 *   mov r4 <- 0
+		 *   ...
+		 *   goto usercode
+		 */
+		error_code = pos.pos;
+		ins(BPF_ALU64_IMM(BPF_MOV, BPF_PROLOGUE_FETCH_RESULT_REG, 1),
+		    &pos);
+
+		for (i = 0; i < nargs; i++)
+			ins(BPF_ALU64_IMM(BPF_MOV,
+					  BPF_PROLOGUE_START_ARG_REG + i,
+					  0),
+			    &pos);
+		ins(BPF_JMP_IMM(BPF_JA, BPF_REG_0, 0, JMP_TO_USER_CODE),
+				&pos);
+	}
+
+	/*
+	 * start of SUCCESS_CODE:
+	 *   mov r2 <- 0
+	 *   goto usercode  // skip
+	 */
+	success_code = pos.pos;
+	ins(BPF_ALU64_IMM(BPF_MOV, BPF_PROLOGUE_FETCH_RESULT_REG, 0), &pos);
+
+	/*
+	 * start of USER_CODE:
+	 *   Restore ctx to r1
+	 */
+	user_code = pos.pos;
+	if (!fastpath) {
+		/*
+		 * Only slow path needs restoring of ctx. In fast path,
+		 * register are loaded directly from r1.
+		 */
+		ins(BPF_MOV64_REG(BPF_REG_ARG1, BPF_REG_CTX), &pos);
+		err = prologue_relocate(&pos, error_code, success_code,
+					user_code);
+		if (err)
+			goto errout;
+	}
+
+	err = check_pos(&pos);
+	if (err)
+		goto errout;
+
+	*new_cnt = pos_get_cnt(&pos);
+	return 0;
+errout:
+	return err;
+}
diff --git a/tools/perf/util/bpf-prologue.h b/tools/perf/util/bpf-prologue.h
new file mode 100644
index 000000000000..d94cbea12899
--- /dev/null
+++ b/tools/perf/util/bpf-prologue.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2015, He Kuang <hekuang@huawei.com>
+ * Copyright (C) 2015, Huawei Inc.
+ */
+#ifndef __BPF_PROLOGUE_H
+#define __BPF_PROLOGUE_H
+
+#include <linux/compiler.h>
+#include <linux/filter.h>
+#include "probe-event.h"
+
+#define BPF_PROLOGUE_MAX_ARGS 3
+#define BPF_PROLOGUE_START_ARG_REG BPF_REG_3
+#define BPF_PROLOGUE_FETCH_RESULT_REG BPF_REG_2
+
+#ifdef HAVE_BPF_PROLOGUE
+int bpf__gen_prologue(struct probe_trace_arg *args, int nargs,
+		      struct bpf_insn *new_prog, size_t *new_cnt,
+		      size_t cnt_space);
+#else
+static inline int
+bpf__gen_prologue(struct probe_trace_arg *args __maybe_unused,
+		  int nargs __maybe_unused,
+		  struct bpf_insn *new_prog __maybe_unused,
+		  size_t *new_cnt,
+		  size_t cnt_space __maybe_unused)
+{
+	if (!new_cnt)
+		return -EINVAL;
+	*new_cnt = 0;
+	return -ENOTSUP;
+}
+#endif
+#endif /* __BPF_PROLOGUE_H */
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index c861373aaed3..07b5d63947b1 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -4,9 +4,12 @@
 #include <stdbool.h>
 #include "util.h"
 #include "strbuf.h"
+#include <subcmd/pager.h>
 #include "../perf.h"
 #include "../ui/ui.h"
 
+#include <linux/string.h>
+
 #define CMD_EXEC_PATH "--exec-path"
 #define CMD_PERF_DIR "--perf-dir="
 #define CMD_WORK_TREE "--work-tree="
@@ -18,6 +21,7 @@
 #define DEFAULT_PERF_DIR_ENVIRONMENT ".perf"
 #define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
 #define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
+#define PERF_PAGER_ENVIRONMENT "PERF_PAGER"
 
 typedef int (*config_fn_t)(const char *, const char *, void *);
 extern int perf_default_config(const char *, const char *, void *);
@@ -28,11 +32,6 @@ extern int perf_config_bool(const char *, const char *);
 extern int config_error_nonbool(const char *);
 extern const char *perf_config_dirname(const char *, const char *);
 
-/* pager.c */
-extern void setup_pager(void);
-extern int pager_in_use(void);
-extern int pager_use_color;
-
 char *alias_lookup(const char *alias);
 int split_cmdline(char *cmdline, const char ***argv);
 
@@ -71,9 +70,4 @@ extern char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2
 extern char *perf_pathdup(const char *fmt, ...)
 	__attribute__((format (printf, 1, 2)));
 
-#ifndef __UCLIBC__
-/* Matches the libc/libbsd function attribute so we declare this unconditionally: */
-extern size_t strlcpy(char *dest, const char *src, size_t size);
-#endif
-
 #endif /* __PERF_CACHE_H */
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 735ad48e1858..53c43eb9489e 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -44,6 +44,10 @@ static int parse_callchain_mode(const char *value)
 		callchain_param.mode = CHAIN_GRAPH_REL;
 		return 0;
 	}
+	if (!strncmp(value, "folded", strlen(value))) {
+		callchain_param.mode = CHAIN_FOLDED;
+		return 0;
+	}
 	return -1;
 }
 
@@ -79,6 +83,23 @@ static int parse_callchain_sort_key(const char *value)
 	return -1;
 }
 
+static int parse_callchain_value(const char *value)
+{
+	if (!strncmp(value, "percent", strlen(value))) {
+		callchain_param.value = CCVAL_PERCENT;
+		return 0;
+	}
+	if (!strncmp(value, "period", strlen(value))) {
+		callchain_param.value = CCVAL_PERIOD;
+		return 0;
+	}
+	if (!strncmp(value, "count", strlen(value))) {
+		callchain_param.value = CCVAL_COUNT;
+		return 0;
+	}
+	return -1;
+}
+
 static int
 __parse_callchain_report_opt(const char *arg, bool allow_record_opt)
 {
@@ -102,7 +123,8 @@ __parse_callchain_report_opt(const char *arg, bool allow_record_opt)
 
 		if (!parse_callchain_mode(tok) ||
 		    !parse_callchain_order(tok) ||
-		    !parse_callchain_sort_key(tok)) {
+		    !parse_callchain_sort_key(tok) ||
+		    !parse_callchain_value(tok)) {
 			/* parsing ok - move on to the next */
 			try_stack_size = false;
 			goto next;
@@ -218,6 +240,7 @@ rb_insert_callchain(struct rb_root *root, struct callchain_node *chain,
 
 		switch (mode) {
 		case CHAIN_FLAT:
+		case CHAIN_FOLDED:
 			if (rnode->hit < chain->hit)
 				p = &(*p)->rb_left;
 			else
@@ -267,6 +290,7 @@ static void
 sort_chain_flat(struct rb_root *rb_root, struct callchain_root *root,
 		u64 min_hit, struct callchain_param *param __maybe_unused)
 {
+	*rb_root = RB_ROOT;
 	__sort_chain_flat(rb_root, &root->node, min_hit);
 }
 
@@ -338,6 +362,7 @@ int callchain_register_param(struct callchain_param *param)
 		param->sort = sort_chain_graph_rel;
 		break;
 	case CHAIN_FLAT:
+	case CHAIN_FOLDED:
 		param->sort = sort_chain_flat;
 		break;
 	case CHAIN_NONE:
@@ -363,6 +388,7 @@ create_child(struct callchain_node *parent, bool inherit_children)
 	}
 	new->parent = parent;
 	INIT_LIST_HEAD(&new->val);
+	INIT_LIST_HEAD(&new->parent_val);
 
 	if (inherit_children) {
 		struct rb_node *n;
@@ -431,6 +457,8 @@ add_child(struct callchain_node *parent,
 
 	new->children_hit = 0;
 	new->hit = period;
+	new->children_count = 0;
+	new->count = 1;
 	return new;
 }
 
@@ -478,6 +506,9 @@ split_add_child(struct callchain_node *parent,
 	parent->children_hit = callchain_cumul_hits(new);
 	new->val_nr = parent->val_nr - idx_local;
 	parent->val_nr = idx_local;
+	new->count = parent->count;
+	new->children_count = parent->children_count;
+	parent->children_count = callchain_cumul_counts(new);
 
 	/* create a new child for the new branch if any */
 	if (idx_total < cursor->nr) {
@@ -488,6 +519,8 @@ split_add_child(struct callchain_node *parent,
 
 		parent->hit = 0;
 		parent->children_hit += period;
+		parent->count = 0;
+		parent->children_count += 1;
 
 		node = callchain_cursor_current(cursor);
 		new = add_child(parent, cursor, period);
@@ -510,6 +543,7 @@ split_add_child(struct callchain_node *parent,
 		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);
 	} else {
 		parent->hit = period;
+		parent->count = 1;
 	}
 }
 
@@ -556,6 +590,7 @@ append_chain_children(struct callchain_node *root,
 
 inc_children_hit:
 	root->children_hit += period;
+	root->children_count++;
 }
 
 static int
@@ -608,6 +643,7 @@ append_chain(struct callchain_node *root,
 	/* we match 100% of the path, increment the hit */
 	if (matches == root->val_nr && cursor->pos == cursor->nr) {
 		root->hit += period;
+		root->count++;
 		return 0;
 	}
 
@@ -799,12 +835,72 @@ char *callchain_list__sym_name(struct callchain_list *cl,
 	return bf;
 }
 
+char *callchain_node__scnprintf_value(struct callchain_node *node,
+				      char *bf, size_t bfsize, u64 total)
+{
+	double percent = 0.0;
+	u64 period = callchain_cumul_hits(node);
+	unsigned count = callchain_cumul_counts(node);
+
+	if (callchain_param.mode == CHAIN_FOLDED) {
+		period = node->hit;
+		count = node->count;
+	}
+
+	switch (callchain_param.value) {
+	case CCVAL_PERIOD:
+		scnprintf(bf, bfsize, "%"PRIu64, period);
+		break;
+	case CCVAL_COUNT:
+		scnprintf(bf, bfsize, "%u", count);
+		break;
+	case CCVAL_PERCENT:
+	default:
+		if (total)
+			percent = period * 100.0 / total;
+		scnprintf(bf, bfsize, "%.2f%%", percent);
+		break;
+	}
+	return bf;
+}
+
+int callchain_node__fprintf_value(struct callchain_node *node,
+				 FILE *fp, u64 total)
+{
+	double percent = 0.0;
+	u64 period = callchain_cumul_hits(node);
+	unsigned count = callchain_cumul_counts(node);
+
+	if (callchain_param.mode == CHAIN_FOLDED) {
+		period = node->hit;
+		count = node->count;
+	}
+
+	switch (callchain_param.value) {
+	case CCVAL_PERIOD:
+		return fprintf(fp, "%"PRIu64, period);
+	case CCVAL_COUNT:
+		return fprintf(fp, "%u", count);
+	case CCVAL_PERCENT:
+	default:
+		if (total)
+			percent = period * 100.0 / total;
+		return percent_color_fprintf(fp, "%.2f%%", percent);
+	}
+	return 0;
+}
+
 static void free_callchain_node(struct callchain_node *node)
 {
 	struct callchain_list *list, *tmp;
 	struct callchain_node *child;
 	struct rb_node *n;
 
+	list_for_each_entry_safe(list, tmp, &node->parent_val, list) {
+		list_del(&list->list);
+		free(list);
+	}
+
 	list_for_each_entry_safe(list, tmp, &node->val, list) {
 		list_del(&list->list);
 		free(list);
@@ -828,3 +924,69 @@ void free_callchain(struct callchain_root *root)
 
 	free_callchain_node(&root->node);
 }
+
+static u64 decay_callchain_node(struct callchain_node *node)
+{
+	struct callchain_node *child;
+	struct rb_node *n;
+	u64 child_hits = 0;
+
+	n = rb_first(&node->rb_root_in);
+	while (n) {
+		child = container_of(n, struct callchain_node, rb_node_in);
+
+		child_hits += decay_callchain_node(child);
+		n = rb_next(n);
+	}
+
+	node->hit = (node->hit * 7) / 8;
+	node->children_hit = child_hits;
+
+	return node->hit;
+}
+
+void decay_callchain(struct callchain_root *root)
+{
+	if (!symbol_conf.use_callchain)
+		return;
+
+	decay_callchain_node(&root->node);
+}
+
+int callchain_node__make_parent_list(struct callchain_node *node)
+{
+	struct callchain_node *parent = node->parent;
+	struct callchain_list *chain, *new;
+	LIST_HEAD(head);
+
+	while (parent) {
+		list_for_each_entry_reverse(chain, &parent->val, list) {
+			new = malloc(sizeof(*new));
+			if (new == NULL)
+				goto out;
+			*new = *chain;
+			new->has_children = false;
+			list_add_tail(&new->list, &head);
+		}
+		parent = parent->parent;
+	}
+
+	list_for_each_entry_safe_reverse(chain, new, &head, list)
+		list_move_tail(&chain->list, &node->parent_val);
+
+	if (!list_empty(&node->parent_val)) {
+		chain = list_first_entry(&node->parent_val, struct callchain_list, list);
+		chain->has_children = rb_prev(&node->rb_node) || rb_next(&node->rb_node);
+
+		chain = list_first_entry(&node->val, struct callchain_list, list);
+		chain->has_children = false;
+	}
+	return 0;
+
+out:
+	list_for_each_entry_safe(chain, new, &head, list) {
+		list_del(&chain->list);
+		free(chain);
+	}
+	return -ENOMEM;
+}
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index fce8161e54db..18dd22269764 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -24,12 +24,13 @@
 #define CALLCHAIN_RECORD_HELP  CALLCHAIN_HELP RECORD_MODE_HELP RECORD_SIZE_HELP
 
 #define CALLCHAIN_REPORT_HELP						\
-	HELP_PAD "print_type:\tcall graph printing style (graph|flat|fractal|none)\n" \
+	HELP_PAD "print_type:\tcall graph printing style (graph|flat|fractal|folded|none)\n" \
 	HELP_PAD "threshold:\tminimum call graph inclusion threshold (<percent>)\n" \
 	HELP_PAD "print_limit:\tmaximum number of call graph entry (<number>)\n" \
 	HELP_PAD "order:\t\tcall graph order (caller|callee)\n" \
 	HELP_PAD "sort_key:\tcall graph sort key (function|address)\n"	\
-	HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n"
+	HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n" \
+	HELP_PAD "value:\t\tcall graph value (percent|period|count)\n"
 
 enum perf_call_graph_mode {
 	CALLCHAIN_NONE,
@@ -43,7 +44,8 @@ enum chain_mode {
 	CHAIN_NONE,
 	CHAIN_FLAT,
 	CHAIN_GRAPH_ABS,
-	CHAIN_GRAPH_REL
+	CHAIN_GRAPH_REL,
+	CHAIN_FOLDED,
 };
 
 enum chain_order {
@@ -54,11 +56,14 @@ enum chain_order {
 struct callchain_node {
 	struct callchain_node	*parent;
 	struct list_head	val;
+	struct list_head	parent_val;
 	struct rb_node		rb_node_in; /* to insert nodes in an rbtree */
 	struct rb_node		rb_node;    /* to sort nodes in an output tree */
 	struct rb_root		rb_root_in; /* input tree of children */
 	struct rb_root		rb_root;    /* sorted output tree of children */
 	unsigned int		val_nr;
+	unsigned int		count;
+	unsigned int		children_count;
 	u64			hit;
 	u64			children_hit;
 };
@@ -78,6 +83,12 @@ enum chain_key {
 	CCKEY_ADDRESS
 };
 
+enum chain_value {
+	CCVAL_PERCENT,
+	CCVAL_PERIOD,
+	CCVAL_COUNT,
+};
+
 struct callchain_param {
 	bool			enabled;
 	enum perf_call_graph_mode record_mode;
@@ -90,6 +101,7 @@ struct callchain_param {
 	bool			order_set;
 	enum chain_key		key;
 	bool			branch_callstack;
+	enum chain_value	value;
 };
 
 extern struct callchain_param callchain_param;
@@ -131,6 +143,7 @@ extern __thread struct callchain_cursor callchain_cursor;
 static inline void callchain_init(struct callchain_root *root)
 {
 	INIT_LIST_HEAD(&root->node.val);
+	INIT_LIST_HEAD(&root->node.parent_val);
 
 	root->node.parent = NULL;
 	root->node.hit = 0;
@@ -144,6 +157,11 @@ static inline u64 callchain_cumul_hits(struct callchain_node *node)
 	return node->hit + node->children_hit;
 }
 
+static inline unsigned callchain_cumul_counts(struct callchain_node *node)
+{
+	return node->count + node->children_count;
+}
+
 int callchain_register_param(struct callchain_param *param);
 int callchain_append(struct callchain_root *root,
 		     struct callchain_cursor *cursor,
@@ -229,7 +247,13 @@ static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused,
 
 char *callchain_list__sym_name(struct callchain_list *cl,
 			       char *bf, size_t bfsize, bool show_dso);
+char *callchain_node__scnprintf_value(struct callchain_node *node,
+				      char *bf, size_t bfsize, u64 total);
+int callchain_node__fprintf_value(struct callchain_node *node,
+				  FILE *fp, u64 total);
 
 void free_callchain(struct callchain_root *root);
+void decay_callchain(struct callchain_root *root);
+int callchain_node__make_parent_list(struct callchain_node *node);
 
 #endif	/* __PERF_CALLCHAIN_H */
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index 32e12ecfe9c5..90aa1b46b2e5 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -1,6 +1,6 @@
 #include "util.h"
 #include "../perf.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 #include "evsel.h"
 #include "cgroup.h"
 #include "evlist.h"
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 9b9565416f90..e5fb88bab9e1 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -24,7 +24,7 @@ int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
  auto_color:
 	if (stdout_is_tty < 0)
 		stdout_is_tty = isatty(1);
-	if (stdout_is_tty || (pager_in_use() && pager_use_color)) {
+	if (stdout_is_tty || pager_in_use()) {
 		char *term = getenv("TERM");
 		if (term && strcmp(term, "dumb"))
 			return 1;
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 2e452ac1353d..d3e12e30e1d5 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -10,7 +10,7 @@
  */
 #include "util.h"
 #include "cache.h"
-#include "exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "util/hist.h"  /* perf_hist_config */
 #include "util/llvm-utils.h"   /* perf_llvm_config */
 
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 10af1e7524fb..fa935093a599 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -5,6 +5,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <linux/bitmap.h>
 #include "asm/bug.h"
 
 static struct cpu_map *cpu_map__default_new(void)
@@ -179,6 +180,56 @@ out:
 	return cpus;
 }
 
+static struct cpu_map *cpu_map__from_entries(struct cpu_map_entries *cpus)
+{
+	struct cpu_map *map;
+
+	map = cpu_map__empty_new(cpus->nr);
+	if (map) {
+		unsigned i;
+
+		for (i = 0; i < cpus->nr; i++) {
+			/*
+			 * Special treatment for -1, which is not real cpu number,
+			 * and we need to use (int) -1 to initialize map[i],
+			 * otherwise it would become 65535.
+			 */
+			if (cpus->cpu[i] == (u16) -1)
+				map->map[i] = -1;
+			else
+				map->map[i] = (int) cpus->cpu[i];
+		}
+	}
+
+	return map;
+}
+
+static struct cpu_map *cpu_map__from_mask(struct cpu_map_mask *mask)
+{
+	struct cpu_map *map;
+	int nr, nbits = mask->nr * mask->long_size * BITS_PER_BYTE;
+
+	nr = bitmap_weight(mask->mask, nbits);
+
+	map = cpu_map__empty_new(nr);
+	if (map) {
+		int cpu, i = 0;
+
+		for_each_set_bit(cpu, mask->mask, nbits)
+			map->map[i++] = cpu;
+	}
+	return map;
+
+}
+
+struct cpu_map *cpu_map__new_data(struct cpu_map_data *data)
+{
+	if (data->type == PERF_CPU_MAP__CPUS)
+		return cpu_map__from_entries((struct cpu_map_entries *)data->data);
+	else
+		return cpu_map__from_mask((struct cpu_map_mask *)data->data);
+}
+
 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp)
 {
 	int i;
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 85f7772457fa..71c41b9efabb 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -17,6 +17,7 @@ struct cpu_map {
 struct cpu_map *cpu_map__new(const char *cpu_list);
 struct cpu_map *cpu_map__empty_new(int nr);
 struct cpu_map *cpu_map__dummy_new(void);
+struct cpu_map *cpu_map__new_data(struct cpu_map_data *data);
 struct cpu_map *cpu_map__read(FILE *file);
 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
 int cpu_map__get_socket_id(int cpu);
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 5bfc1198ab46..34cd1e4039d3 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -63,6 +63,7 @@ struct ctf_writer {
 			struct bt_ctf_field_type	*s32;
 			struct bt_ctf_field_type	*u32;
 			struct bt_ctf_field_type	*string;
+			struct bt_ctf_field_type	*u32_hex;
 			struct bt_ctf_field_type	*u64_hex;
 		};
 		struct bt_ctf_field_type *array[6];
@@ -982,6 +983,7 @@ do {							\
 	CREATE_INT_TYPE(cw->data.u64, 64, false, false);
 	CREATE_INT_TYPE(cw->data.s32, 32, true,  false);
 	CREATE_INT_TYPE(cw->data.u32, 32, false, false);
+	CREATE_INT_TYPE(cw->data.u32_hex, 32, false, true);
 	CREATE_INT_TYPE(cw->data.u64_hex, 64, false, true);
 
 	cw->data.string  = bt_ctf_field_type_string_create();
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 425df5c86c9c..e8e9a9dbf5e3 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1243,6 +1243,8 @@ struct dso *__dsos__addnew(struct dsos *dsos, const char *name)
 	if (dso != NULL) {
 		__dsos__add(dsos, dso);
 		dso__set_basename(dso);
+		/* Put dso here because __dsos_add already got it */
+		dso__put(dso);
 	}
 	return dso;
 }
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 6af4f7c36820..7dd5939dea2e 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -25,15 +25,6 @@ int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[])
 {
 	int i;
 
-	/*
-	 * If env->cmdline_argv has already been set, do not override it.  This allows
-	 * a command to set the cmdline, parse args and then call another
-	 * builtin function that implements a command -- e.g, cmd_kvm calling
-	 * cmd_record.
-	 */
-	if (env->cmdline_argv != NULL)
-		return 0;
-
 	/* do not include NULL termination */
 	env->cmdline_argv = calloc(argc, sizeof(char *));
 	if (env->cmdline_argv == NULL)
diff --git a/tools/perf/util/environment.c b/tools/perf/util/environment.c
deleted file mode 100644
index 7405123692f1..000000000000
--- a/tools/perf/util/environment.c
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * We put all the perf config variables in this same object
- * file, so that programs can link against the config parser
- * without having to link against all the rest of perf.
- */
-#include "cache.h"
-
-int pager_use_color = 1;
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 8b10621b415c..cd61bb1f3917 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -10,6 +10,8 @@
 #include "thread.h"
 #include "thread_map.h"
 #include "symbol/kallsyms.h"
+#include "asm/bug.h"
+#include "stat.h"
 
 static const char *perf_event__names[] = {
 	[0]					= "TOTAL",
@@ -37,6 +39,12 @@ static const char *perf_event__names[] = {
 	[PERF_RECORD_AUXTRACE_INFO]		= "AUXTRACE_INFO",
 	[PERF_RECORD_AUXTRACE]			= "AUXTRACE",
 	[PERF_RECORD_AUXTRACE_ERROR]		= "AUXTRACE_ERROR",
+	[PERF_RECORD_THREAD_MAP]		= "THREAD_MAP",
+	[PERF_RECORD_CPU_MAP]			= "CPU_MAP",
+	[PERF_RECORD_STAT_CONFIG]		= "STAT_CONFIG",
+	[PERF_RECORD_STAT]			= "STAT",
+	[PERF_RECORD_STAT_ROUND]		= "STAT_ROUND",
+	[PERF_RECORD_EVENT_UPDATE]		= "EVENT_UPDATE",
 };
 
 const char *perf_event__name(unsigned int id)
@@ -699,6 +707,274 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 	return err;
 }
 
+int perf_event__synthesize_thread_map2(struct perf_tool *tool,
+				      struct thread_map *threads,
+				      perf_event__handler_t process,
+				      struct machine *machine)
+{
+	union perf_event *event;
+	int i, err, size;
+
+	size  = sizeof(event->thread_map);
+	size +=	threads->nr * sizeof(event->thread_map.entries[0]);
+
+	event = zalloc(size);
+	if (!event)
+		return -ENOMEM;
+
+	event->header.type = PERF_RECORD_THREAD_MAP;
+	event->header.size = size;
+	event->thread_map.nr = threads->nr;
+
+	for (i = 0; i < threads->nr; i++) {
+		struct thread_map_event_entry *entry = &event->thread_map.entries[i];
+		char *comm = thread_map__comm(threads, i);
+
+		if (!comm)
+			comm = (char *) "";
+
+		entry->pid = thread_map__pid(threads, i);
+		strncpy((char *) &entry->comm, comm, sizeof(entry->comm));
+	}
+
+	err = process(tool, event, NULL, machine);
+
+	free(event);
+	return err;
+}
+
+static void synthesize_cpus(struct cpu_map_entries *cpus,
+			    struct cpu_map *map)
+{
+	int i;
+
+	cpus->nr = map->nr;
+
+	for (i = 0; i < map->nr; i++)
+		cpus->cpu[i] = map->map[i];
+}
+
+static void synthesize_mask(struct cpu_map_mask *mask,
+			    struct cpu_map *map, int max)
+{
+	int i;
+
+	mask->nr = BITS_TO_LONGS(max);
+	mask->long_size = sizeof(long);
+
+	for (i = 0; i < map->nr; i++)
+		set_bit(map->map[i], mask->mask);
+}
+
+static size_t cpus_size(struct cpu_map *map)
+{
+	return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16);
+}
+
+static size_t mask_size(struct cpu_map *map, int *max)
+{
+	int i;
+
+	*max = 0;
+
+	for (i = 0; i < map->nr; i++) {
+		/* bit possition of the cpu is + 1 */
+		int bit = map->map[i] + 1;
+
+		if (bit > *max)
+			*max = bit;
+	}
+
+	return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long);
+}
+
+void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max)
+{
+	size_t size_cpus, size_mask;
+	bool is_dummy = cpu_map__empty(map);
+
+	/*
+	 * Both array and mask data have variable size based
+	 * on the number of cpus and their actual values.
+	 * The size of the 'struct cpu_map_data' is:
+	 *
+	 *   array = size of 'struct cpu_map_entries' +
+	 *           number of cpus * sizeof(u64)
+	 *
+	 *   mask  = size of 'struct cpu_map_mask' +
+	 *           maximum cpu bit converted to size of longs
+	 *
+	 * and finaly + the size of 'struct cpu_map_data'.
+	 */
+	size_cpus = cpus_size(map);
+	size_mask = mask_size(map, max);
+
+	if (is_dummy || (size_cpus < size_mask)) {
+		*size += size_cpus;
+		*type  = PERF_CPU_MAP__CPUS;
+	} else {
+		*size += size_mask;
+		*type  = PERF_CPU_MAP__MASK;
+	}
+
+	*size += sizeof(struct cpu_map_data);
+	return zalloc(*size);
+}
+
+void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
+			      u16 type, int max)
+{
+	data->type = type;
+
+	switch (type) {
+	case PERF_CPU_MAP__CPUS:
+		synthesize_cpus((struct cpu_map_entries *) data->data, map);
+		break;
+	case PERF_CPU_MAP__MASK:
+		synthesize_mask((struct cpu_map_mask *) data->data, map, max);
+	default:
+		break;
+	};
+}
+
+static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map)
+{
+	size_t size = sizeof(struct cpu_map_event);
+	struct cpu_map_event *event;
+	int max;
+	u16 type;
+
+	event = cpu_map_data__alloc(map, &size, &type, &max);
+	if (!event)
+		return NULL;
+
+	event->header.type = PERF_RECORD_CPU_MAP;
+	event->header.size = size;
+	event->data.type   = type;
+
+	cpu_map_data__synthesize(&event->data, map, type, max);
+	return event;
+}
+
+int perf_event__synthesize_cpu_map(struct perf_tool *tool,
+				   struct cpu_map *map,
+				   perf_event__handler_t process,
+				   struct machine *machine)
+{
+	struct cpu_map_event *event;
+	int err;
+
+	event = cpu_map_event__new(map);
+	if (!event)
+		return -ENOMEM;
+
+	err = process(tool, (union perf_event *) event, NULL, machine);
+
+	free(event);
+	return err;
+}
+
+int perf_event__synthesize_stat_config(struct perf_tool *tool,
+				       struct perf_stat_config *config,
+				       perf_event__handler_t process,
+				       struct machine *machine)
+{
+	struct stat_config_event *event;
+	int size, i = 0, err;
+
+	size  = sizeof(*event);
+	size += (PERF_STAT_CONFIG_TERM__MAX * sizeof(event->data[0]));
+
+	event = zalloc(size);
+	if (!event)
+		return -ENOMEM;
+
+	event->header.type = PERF_RECORD_STAT_CONFIG;
+	event->header.size = size;
+	event->nr          = PERF_STAT_CONFIG_TERM__MAX;
+
+#define ADD(__term, __val)					\
+	event->data[i].tag = PERF_STAT_CONFIG_TERM__##__term;	\
+	event->data[i].val = __val;				\
+	i++;
+
+	ADD(AGGR_MODE,	config->aggr_mode)
+	ADD(INTERVAL,	config->interval)
+	ADD(SCALE,	config->scale)
+
+	WARN_ONCE(i != PERF_STAT_CONFIG_TERM__MAX,
+		  "stat config terms unbalanced\n");
+#undef ADD
+
+	err = process(tool, (union perf_event *) event, NULL, machine);
+
+	free(event);
+	return err;
+}
+
+int perf_event__synthesize_stat(struct perf_tool *tool,
+				u32 cpu, u32 thread, u64 id,
+				struct perf_counts_values *count,
+				perf_event__handler_t process,
+				struct machine *machine)
+{
+	struct stat_event event;
+
+	event.header.type = PERF_RECORD_STAT;
+	event.header.size = sizeof(event);
+	event.header.misc = 0;
+
+	event.id        = id;
+	event.cpu       = cpu;
+	event.thread    = thread;
+	event.val       = count->val;
+	event.ena       = count->ena;
+	event.run       = count->run;
+
+	return process(tool, (union perf_event *) &event, NULL, machine);
+}
+
+int perf_event__synthesize_stat_round(struct perf_tool *tool,
+				      u64 evtime, u64 type,
+				      perf_event__handler_t process,
+				      struct machine *machine)
+{
+	struct stat_round_event event;
+
+	event.header.type = PERF_RECORD_STAT_ROUND;
+	event.header.size = sizeof(event);
+	event.header.misc = 0;
+
+	event.time = evtime;
+	event.type = type;
+
+	return process(tool, (union perf_event *) &event, NULL, machine);
+}
+
+void perf_event__read_stat_config(struct perf_stat_config *config,
+				  struct stat_config_event *event)
+{
+	unsigned i;
+
+	for (i = 0; i < event->nr; i++) {
+
+		switch (event->data[i].tag) {
+#define CASE(__term, __val)					\
+		case PERF_STAT_CONFIG_TERM__##__term:		\
+			config->__val = event->data[i].val;	\
+			break;
+
+		CASE(AGGR_MODE, aggr_mode)
+		CASE(SCALE,     scale)
+		CASE(INTERVAL,  interval)
+#undef CASE
+		default:
+			pr_warning("unknown stat config term %" PRIu64 "\n",
+				   event->data[i].tag);
+		}
+	}
+}
+
 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
 {
 	const char *s;
@@ -783,6 +1059,38 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 		       event->mmap2.filename);
 }
 
+size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
+{
+	struct thread_map *threads = thread_map__new_event(&event->thread_map);
+	size_t ret;
+
+	ret = fprintf(fp, " nr: ");
+
+	if (threads)
+		ret += thread_map__fprintf(threads, fp);
+	else
+		ret += fprintf(fp, "failed to get threads from event\n");
+
+	thread_map__put(threads);
+	return ret;
+}
+
+size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
+{
+	struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
+	size_t ret;
+
+	ret = fprintf(fp, " nr: ");
+
+	if (cpus)
+		ret += cpu_map__fprintf(cpus, fp);
+	else
+		ret += fprintf(fp, "failed to get cpumap from event\n");
+
+	cpu_map__put(cpus);
+	return ret;
+}
+
 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index a0dbcbd4f6d8..b7ffb7ee9971 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -226,6 +226,12 @@ enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_AUXTRACE_INFO		= 70,
 	PERF_RECORD_AUXTRACE			= 71,
 	PERF_RECORD_AUXTRACE_ERROR		= 72,
+	PERF_RECORD_THREAD_MAP			= 73,
+	PERF_RECORD_CPU_MAP			= 74,
+	PERF_RECORD_STAT_CONFIG			= 75,
+	PERF_RECORD_STAT			= 76,
+	PERF_RECORD_STAT_ROUND			= 77,
+	PERF_RECORD_EVENT_UPDATE		= 78,
 	PERF_RECORD_HEADER_MAX
 };
 
@@ -270,12 +276,61 @@ struct events_stats {
 	u32 nr_proc_map_timeout;
 };
 
+enum {
+	PERF_CPU_MAP__CPUS = 0,
+	PERF_CPU_MAP__MASK = 1,
+};
+
+struct cpu_map_entries {
+	u16	nr;
+	u16	cpu[];
+};
+
+struct cpu_map_mask {
+	u16	nr;
+	u16	long_size;
+	unsigned long mask[];
+};
+
+struct cpu_map_data {
+	u16	type;
+	char	data[];
+};
+
+struct cpu_map_event {
+	struct perf_event_header	header;
+	struct cpu_map_data		data;
+};
+
 struct attr_event {
 	struct perf_event_header header;
 	struct perf_event_attr attr;
 	u64 id[];
 };
 
+enum {
+	PERF_EVENT_UPDATE__UNIT  = 0,
+	PERF_EVENT_UPDATE__SCALE = 1,
+	PERF_EVENT_UPDATE__NAME  = 2,
+	PERF_EVENT_UPDATE__CPUS  = 3,
+};
+
+struct event_update_event_cpus {
+	struct cpu_map_data cpus;
+};
+
+struct event_update_event_scale {
+	double scale;
+};
+
+struct event_update_event {
+	struct perf_event_header header;
+	u64 type;
+	u64 id;
+
+	char data[];
+};
+
 #define MAX_EVENT_NAME 64
 
 struct perf_trace_event_type {
@@ -356,6 +411,63 @@ struct context_switch_event {
 	u32 next_prev_tid;
 };
 
+struct thread_map_event_entry {
+	u64	pid;
+	char	comm[16];
+};
+
+struct thread_map_event {
+	struct perf_event_header	header;
+	u64				nr;
+	struct thread_map_event_entry	entries[];
+};
+
+enum {
+	PERF_STAT_CONFIG_TERM__AGGR_MODE	= 0,
+	PERF_STAT_CONFIG_TERM__INTERVAL		= 1,
+	PERF_STAT_CONFIG_TERM__SCALE		= 2,
+	PERF_STAT_CONFIG_TERM__MAX		= 3,
+};
+
+struct stat_config_event_entry {
+	u64	tag;
+	u64	val;
+};
+
+struct stat_config_event {
+	struct perf_event_header	header;
+	u64				nr;
+	struct stat_config_event_entry	data[];
+};
+
+struct stat_event {
+	struct perf_event_header	header;
+
+	u64	id;
+	u32	cpu;
+	u32	thread;
+
+	union {
+		struct {
+			u64 val;
+			u64 ena;
+			u64 run;
+		};
+		u64 values[3];
+	};
+};
+
+enum {
+	PERF_STAT_ROUND_TYPE__INTERVAL	= 0,
+	PERF_STAT_ROUND_TYPE__FINAL	= 1,
+};
+
+struct stat_round_event {
+	struct perf_event_header	header;
+	u64				type;
+	u64				time;
+};
+
 union perf_event {
 	struct perf_event_header	header;
 	struct mmap_event		mmap;
@@ -368,6 +480,7 @@ union perf_event {
 	struct throttle_event		throttle;
 	struct sample_event		sample;
 	struct attr_event		attr;
+	struct event_update_event	event_update;
 	struct event_type_event		event_type;
 	struct tracing_data_event	tracing_data;
 	struct build_id_event		build_id;
@@ -378,12 +491,20 @@ union perf_event {
 	struct aux_event		aux;
 	struct itrace_start_event	itrace_start;
 	struct context_switch_event	context_switch;
+	struct thread_map_event		thread_map;
+	struct cpu_map_event		cpu_map;
+	struct stat_config_event	stat_config;
+	struct stat_event		stat;
+	struct stat_round_event		stat_round;
 };
 
 void perf_event__print_totals(void);
 
 struct perf_tool;
 struct thread_map;
+struct cpu_map;
+struct perf_stat_config;
+struct perf_counts_values;
 
 typedef int (*perf_event__handler_t)(struct perf_tool *tool,
 				     union perf_event *event,
@@ -395,6 +516,14 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
 				      perf_event__handler_t process,
 				      struct machine *machine, bool mmap_data,
 				      unsigned int proc_map_timeout);
+int perf_event__synthesize_thread_map2(struct perf_tool *tool,
+				      struct thread_map *threads,
+				      perf_event__handler_t process,
+				      struct machine *machine);
+int perf_event__synthesize_cpu_map(struct perf_tool *tool,
+				   struct cpu_map *cpus,
+				   perf_event__handler_t process,
+				   struct machine *machine);
 int perf_event__synthesize_threads(struct perf_tool *tool,
 				   perf_event__handler_t process,
 				   struct machine *machine, bool mmap_data,
@@ -402,7 +531,21 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 				       perf_event__handler_t process,
 				       struct machine *machine);
-
+int perf_event__synthesize_stat_config(struct perf_tool *tool,
+				       struct perf_stat_config *config,
+				       perf_event__handler_t process,
+				       struct machine *machine);
+void perf_event__read_stat_config(struct perf_stat_config *config,
+				  struct stat_config_event *event);
+int perf_event__synthesize_stat(struct perf_tool *tool,
+				u32 cpu, u32 thread, u64 id,
+				struct perf_counts_values *count,
+				perf_event__handler_t process,
+				struct machine *machine);
+int perf_event__synthesize_stat_round(struct perf_tool *tool,
+				      u64 time, u64 type,
+				      perf_event__handler_t process,
+				      struct machine *machine);
 int perf_event__synthesize_modules(struct perf_tool *tool,
 				   perf_event__handler_t process,
 				   struct machine *machine);
@@ -499,9 +642,14 @@ size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf(union perf_event *event, FILE *fp);
 
 u64 kallsyms__get_function_start(const char *kallsyms_filename,
 				 const char *symbol_name);
 
+void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
+void  cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
+			       u16 type, int max);
 #endif /* __PERF_RECORD_H */
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d1392194a9a9..d81f13de2476 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -18,7 +18,7 @@
 #include <unistd.h>
 
 #include "parse-events.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 
 #include <sys/mman.h>
 
@@ -68,6 +68,18 @@ struct perf_evlist *perf_evlist__new_default(void)
 	return evlist;
 }
 
+struct perf_evlist *perf_evlist__new_dummy(void)
+{
+	struct perf_evlist *evlist = perf_evlist__new();
+
+	if (evlist && perf_evlist__add_dummy(evlist)) {
+		perf_evlist__delete(evlist);
+		evlist = NULL;
+	}
+
+	return evlist;
+}
+
 /**
  * perf_evlist__set_id_pos - set the positions of event ids.
  * @evlist: selected event list
@@ -248,6 +260,22 @@ error:
 	return -ENOMEM;
 }
 
+int perf_evlist__add_dummy(struct perf_evlist *evlist)
+{
+	struct perf_event_attr attr = {
+		.type	= PERF_TYPE_SOFTWARE,
+		.config = PERF_COUNT_SW_DUMMY,
+		.size	= sizeof(attr), /* to capture ABI version */
+	};
+	struct perf_evsel *evsel = perf_evsel__new(&attr);
+
+	if (evsel == NULL)
+		return -ENOMEM;
+
+	perf_evlist__add(evlist, evsel);
+	return 0;
+}
+
 static int perf_evlist__add_attrs(struct perf_evlist *evlist,
 				  struct perf_event_attr *attrs, size_t nr_attrs)
 {
@@ -336,20 +364,12 @@ static int perf_evlist__nr_threads(struct perf_evlist *evlist,
 
 void perf_evlist__disable(struct perf_evlist *evlist)
 {
-	int cpu, thread;
 	struct perf_evsel *pos;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads;
 
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		evlist__for_each(evlist, pos) {
-			if (!perf_evsel__is_group_leader(pos) || !pos->fd)
-				continue;
-			nr_threads = perf_evlist__nr_threads(evlist, pos);
-			for (thread = 0; thread < nr_threads; thread++)
-				ioctl(FD(pos, cpu, thread),
-				      PERF_EVENT_IOC_DISABLE, 0);
-		}
+	evlist__for_each(evlist, pos) {
+		if (!perf_evsel__is_group_leader(pos) || !pos->fd)
+			continue;
+		perf_evsel__disable(pos);
 	}
 
 	evlist->enabled = false;
@@ -357,20 +377,12 @@ void perf_evlist__disable(struct perf_evlist *evlist)
 
 void perf_evlist__enable(struct perf_evlist *evlist)
 {
-	int cpu, thread;
 	struct perf_evsel *pos;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads;
 
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		evlist__for_each(evlist, pos) {
-			if (!perf_evsel__is_group_leader(pos) || !pos->fd)
-				continue;
-			nr_threads = perf_evlist__nr_threads(evlist, pos);
-			for (thread = 0; thread < nr_threads; thread++)
-				ioctl(FD(pos, cpu, thread),
-				      PERF_EVENT_IOC_ENABLE, 0);
-		}
+	evlist__for_each(evlist, pos) {
+		if (!perf_evsel__is_group_leader(pos) || !pos->fd)
+			continue;
+		perf_evsel__enable(pos);
 	}
 
 	evlist->enabled = true;
@@ -381,48 +393,6 @@ void perf_evlist__toggle_enable(struct perf_evlist *evlist)
 	(evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist);
 }
 
-int perf_evlist__disable_event(struct perf_evlist *evlist,
-			       struct perf_evsel *evsel)
-{
-	int cpu, thread, err;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads = perf_evlist__nr_threads(evlist, evsel);
-
-	if (!evsel->fd)
-		return 0;
-
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		for (thread = 0; thread < nr_threads; thread++) {
-			err = ioctl(FD(evsel, cpu, thread),
-				    PERF_EVENT_IOC_DISABLE, 0);
-			if (err)
-				return err;
-		}
-	}
-	return 0;
-}
-
-int perf_evlist__enable_event(struct perf_evlist *evlist,
-			      struct perf_evsel *evsel)
-{
-	int cpu, thread, err;
-	int nr_cpus = cpu_map__nr(evlist->cpus);
-	int nr_threads = perf_evlist__nr_threads(evlist, evsel);
-
-	if (!evsel->fd)
-		return -EINVAL;
-
-	for (cpu = 0; cpu < nr_cpus; cpu++) {
-		for (thread = 0; thread < nr_threads; thread++) {
-			err = ioctl(FD(evsel, cpu, thread),
-				    PERF_EVENT_IOC_ENABLE, 0);
-			if (err)
-				return err;
-		}
-	}
-	return 0;
-}
-
 static int perf_evlist__enable_event_cpu(struct perf_evlist *evlist,
 					 struct perf_evsel *evsel, int cpu)
 {
@@ -550,9 +520,9 @@ void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
 	evsel->id[evsel->ids++] = id;
 }
 
-static int perf_evlist__id_add_fd(struct perf_evlist *evlist,
-				  struct perf_evsel *evsel,
-				  int cpu, int thread, int fd)
+int perf_evlist__id_add_fd(struct perf_evlist *evlist,
+			   struct perf_evsel *evsel,
+			   int cpu, int thread, int fd)
 {
 	u64 read_data[4] = { 0, };
 	int id_idx = 1; /* The first entry is the counter value */
@@ -1486,7 +1456,7 @@ int perf_evlist__open(struct perf_evlist *evlist)
 	perf_evlist__update_id_pos(evlist);
 
 	evlist__for_each(evlist, evsel) {
-		err = perf_evsel__open(evsel, evlist->cpus, evlist->threads);
+		err = perf_evsel__open(evsel, evsel->cpus, evsel->threads);
 		if (err < 0)
 			goto out_err;
 	}
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index a459fe71b452..7c4d9a206776 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -67,6 +67,7 @@ struct perf_evsel_str_handler {
 
 struct perf_evlist *perf_evlist__new(void);
 struct perf_evlist *perf_evlist__new_default(void);
+struct perf_evlist *perf_evlist__new_dummy(void);
 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
 		       struct thread_map *threads);
 void perf_evlist__exit(struct perf_evlist *evlist);
@@ -81,6 +82,8 @@ int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
 #define perf_evlist__add_default_attrs(evlist, array) \
 	__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
 
+int perf_evlist__add_dummy(struct perf_evlist *evlist);
+
 int perf_evlist__add_newtp(struct perf_evlist *evlist,
 			   const char *sys, const char *name, void *handler);
 
@@ -97,6 +100,9 @@ perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
 
 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
 			 int cpu, int thread, u64 id);
+int perf_evlist__id_add_fd(struct perf_evlist *evlist,
+			   struct perf_evsel *evsel,
+			   int cpu, int thread, int fd);
 
 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
@@ -149,10 +155,6 @@ void perf_evlist__disable(struct perf_evlist *evlist);
 void perf_evlist__enable(struct perf_evlist *evlist);
 void perf_evlist__toggle_enable(struct perf_evlist *evlist);
 
-int perf_evlist__disable_event(struct perf_evlist *evlist,
-			       struct perf_evsel *evsel);
-int perf_evlist__enable_event(struct perf_evlist *evlist,
-			      struct perf_evsel *evsel);
 int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
 				  struct perf_evsel *evsel, int idx);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 397fb4ed3c97..cdbaf9b51e42 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -36,6 +36,7 @@ static struct {
 	bool cloexec;
 	bool clockid;
 	bool clockid_wrong;
+	bool lbr_flags;
 } perf_missing_features;
 
 static clockid_t clockid;
@@ -574,7 +575,9 @@ perf_evsel__config_callgraph(struct perf_evsel *evsel,
 			} else {
 				perf_evsel__set_sample_bit(evsel, BRANCH_STACK);
 				attr->branch_sample_type = PERF_SAMPLE_BRANCH_USER |
-							PERF_SAMPLE_BRANCH_CALL_STACK;
+							PERF_SAMPLE_BRANCH_CALL_STACK |
+							PERF_SAMPLE_BRANCH_NO_CYCLES |
+							PERF_SAMPLE_BRANCH_NO_FLAGS;
 			}
 		} else
 			 pr_warning("Cannot use LBR callstack with branch stack. "
@@ -981,13 +984,26 @@ int perf_evsel__append_filter(struct perf_evsel *evsel,
 	return -1;
 }
 
-int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads)
+int perf_evsel__enable(struct perf_evsel *evsel)
 {
+	int nthreads = thread_map__nr(evsel->threads);
+	int ncpus = cpu_map__nr(evsel->cpus);
+
 	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
 				     PERF_EVENT_IOC_ENABLE,
 				     0);
 }
 
+int perf_evsel__disable(struct perf_evsel *evsel)
+{
+	int nthreads = thread_map__nr(evsel->threads);
+	int ncpus = cpu_map__nr(evsel->cpus);
+
+	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
+				     PERF_EVENT_IOC_DISABLE,
+				     0);
+}
+
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
 {
 	if (ncpus == 0 || nthreads == 0)
@@ -1192,6 +1208,7 @@ static void __p_sample_type(char *buf, size_t size, u64 value)
 		bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
 		bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
 		bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC),
+		bit_name(WEIGHT),
 		{ .name = NULL, }
 	};
 #undef bit_name
@@ -1323,6 +1340,9 @@ fallback_missing_features:
 		evsel->attr.mmap2 = 0;
 	if (perf_missing_features.exclude_guest)
 		evsel->attr.exclude_guest = evsel->attr.exclude_host = 0;
+	if (perf_missing_features.lbr_flags)
+		evsel->attr.branch_sample_type &= ~(PERF_SAMPLE_BRANCH_NO_FLAGS |
+				     PERF_SAMPLE_BRANCH_NO_CYCLES);
 retry_sample_id:
 	if (perf_missing_features.sample_id_all)
 		evsel->attr.sample_id_all = 0;
@@ -1441,6 +1461,12 @@ try_fallback:
 	} else if (!perf_missing_features.sample_id_all) {
 		perf_missing_features.sample_id_all = true;
 		goto retry_sample_id;
+	} else if (!perf_missing_features.lbr_flags &&
+			(evsel->attr.branch_sample_type &
+			 (PERF_SAMPLE_BRANCH_NO_CYCLES |
+			  PERF_SAMPLE_BRANCH_NO_FLAGS))) {
+		perf_missing_features.lbr_flags = true;
+		goto fallback_missing_features;
 	}
 
 out_close:
@@ -2272,6 +2298,29 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
 		printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
 					 term, (u64)evsel->attr.sample_freq);
 	}
+
+	if (details->trace_fields) {
+		struct format_field *field;
+
+		if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
+			printed += comma_fprintf(fp, &first, " (not a tracepoint)");
+			goto out;
+		}
+
+		field = evsel->tp_format->format.fields;
+		if (field == NULL) {
+			printed += comma_fprintf(fp, &first, " (no trace field)");
+			goto out;
+		}
+
+		printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
+
+		field = field->next;
+		while (field) {
+			printed += comma_fprintf(fp, &first, "%s", field->name);
+			field = field->next;
+		}
+	}
 out:
 	fputc('\n', fp);
 	return ++printed;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 0e49bd742c63..8e75434bd01c 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -227,7 +227,8 @@ int perf_evsel__append_filter(struct perf_evsel *evsel,
 			      const char *op, const char *filter);
 int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
 			     const char *filter);
-int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
+int perf_evsel__enable(struct perf_evsel *evsel);
+int perf_evsel__disable(struct perf_evsel *evsel);
 
 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
 			     struct cpu_map *cpus);
@@ -368,6 +369,7 @@ struct perf_attr_details {
 	bool verbose;
 	bool event_group;
 	bool force;
+	bool trace_fields;
 };
 
 int perf_evsel__fprintf(struct perf_evsel *evsel,
diff --git a/tools/perf/util/exec_cmd.c b/tools/perf/util/exec_cmd.c
deleted file mode 100644
index 7adf4ad15d8f..000000000000
--- a/tools/perf/util/exec_cmd.c
+++ /dev/null
@@ -1,148 +0,0 @@
-#include "cache.h"
-#include "exec_cmd.h"
-#include "quote.h"
-
-#include <string.h>
-
-#define MAX_ARGS	32
-
-static const char *argv_exec_path;
-static const char *argv0_path;
-
-const char *system_path(const char *path)
-{
-	static const char *prefix = PREFIX;
-	struct strbuf d = STRBUF_INIT;
-
-	if (is_absolute_path(path))
-		return path;
-
-	strbuf_addf(&d, "%s/%s", prefix, path);
-	path = strbuf_detach(&d, NULL);
-	return path;
-}
-
-const char *perf_extract_argv0_path(const char *argv0)
-{
-	const char *slash;
-
-	if (!argv0 || !*argv0)
-		return NULL;
-	slash = argv0 + strlen(argv0);
-
-	while (argv0 <= slash && !is_dir_sep(*slash))
-		slash--;
-
-	if (slash >= argv0) {
-		argv0_path = strndup(argv0, slash - argv0);
-		return argv0_path ? slash + 1 : NULL;
-	}
-
-	return argv0;
-}
-
-void perf_set_argv_exec_path(const char *exec_path)
-{
-	argv_exec_path = exec_path;
-	/*
-	 * Propagate this setting to external programs.
-	 */
-	setenv(EXEC_PATH_ENVIRONMENT, exec_path, 1);
-}
-
-
-/* Returns the highest-priority, location to look for perf programs. */
-const char *perf_exec_path(void)
-{
-	const char *env;
-
-	if (argv_exec_path)
-		return argv_exec_path;
-
-	env = getenv(EXEC_PATH_ENVIRONMENT);
-	if (env && *env) {
-		return env;
-	}
-
-	return system_path(PERF_EXEC_PATH);
-}
-
-static void add_path(struct strbuf *out, const char *path)
-{
-	if (path && *path) {
-		if (is_absolute_path(path))
-			strbuf_addstr(out, path);
-		else
-			strbuf_addstr(out, make_nonrelative_path(path));
-
-		strbuf_addch(out, PATH_SEP);
-	}
-}
-
-void setup_path(void)
-{
-	const char *old_path = getenv("PATH");
-	struct strbuf new_path = STRBUF_INIT;
-
-	add_path(&new_path, perf_exec_path());
-	add_path(&new_path, argv0_path);
-
-	if (old_path)
-		strbuf_addstr(&new_path, old_path);
-	else
-		strbuf_addstr(&new_path, "/usr/local/bin:/usr/bin:/bin");
-
-	setenv("PATH", new_path.buf, 1);
-
-	strbuf_release(&new_path);
-}
-
-static const char **prepare_perf_cmd(const char **argv)
-{
-	int argc;
-	const char **nargv;
-
-	for (argc = 0; argv[argc]; argc++)
-		; /* just counting */
-	nargv = malloc(sizeof(*nargv) * (argc + 2));
-
-	nargv[0] = "perf";
-	for (argc = 0; argv[argc]; argc++)
-		nargv[argc + 1] = argv[argc];
-	nargv[argc + 1] = NULL;
-	return nargv;
-}
-
-int execv_perf_cmd(const char **argv) {
-	const char **nargv = prepare_perf_cmd(argv);
-
-	/* execvp() can only ever return if it fails */
-	execvp("perf", (char **)nargv);
-
-	free(nargv);
-	return -1;
-}
-
-
-int execl_perf_cmd(const char *cmd,...)
-{
-	int argc;
-	const char *argv[MAX_ARGS + 1];
-	const char *arg;
-	va_list param;
-
-	va_start(param, cmd);
-	argv[0] = cmd;
-	argc = 1;
-	while (argc < MAX_ARGS) {
-		arg = argv[argc++] = va_arg(param, char *);
-		if (!arg)
-			break;
-	}
-	va_end(param);
-	if (MAX_ARGS <= argc)
-		return error("too many args to run %s", cmd);
-
-	argv[argc] = NULL;
-	return execv_perf_cmd(argv);
-}
diff --git a/tools/perf/util/exec_cmd.h b/tools/perf/util/exec_cmd.h
deleted file mode 100644
index bc4b915963f5..000000000000
--- a/tools/perf/util/exec_cmd.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __PERF_EXEC_CMD_H
-#define __PERF_EXEC_CMD_H
-
-extern void perf_set_argv_exec_path(const char *exec_path);
-extern const char *perf_extract_argv0_path(const char *path);
-extern const char *perf_exec_path(void);
-extern void setup_path(void);
-extern int execv_perf_cmd(const char **argv); /* NULL terminated */
-extern int execl_perf_cmd(const char *cmd, ...);
-extern const char *system_path(const char *path);
-
-#endif /* __PERF_EXEC_CMD_H */
diff --git a/tools/perf/util/generate-cmdlist.sh b/tools/perf/util/generate-cmdlist.sh
index 36a885d2cd22..0ac2037c970c 100755
--- a/tools/perf/util/generate-cmdlist.sh
+++ b/tools/perf/util/generate-cmdlist.sh
@@ -36,4 +36,19 @@ do
      }' "Documentation/perf-$cmd.txt"
 done
 echo "#endif /* HAVE_LIBELF_SUPPORT */"
+
+echo "#ifdef HAVE_LIBAUDIT_SUPPORT"
+sed -n -e 's/^perf-\([^ 	]*\)[ 	].* audit*/\1/p' command-list.txt |
+sort |
+while read cmd
+do
+     sed -n '
+     /^NAME/,/perf-'"$cmd"'/H
+     ${
+            x
+            s/.*perf-'"$cmd"' - \(.*\)/  {"'"$cmd"'", "\1"},/
+	    p
+     }' "Documentation/perf-$cmd.txt"
+done
+echo "#endif /* HAVE_LIBELF_SUPPORT */"
 echo "};"
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 43838003c1a1..f50b7235ecb6 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -724,7 +724,7 @@ static int write_numa_topology(int fd, struct perf_header *h __maybe_unused,
 done:
 	free(buf);
 	fclose(fp);
-	free(node_map);
+	cpu_map__put(node_map);
 	return ret;
 }
 
@@ -868,6 +868,13 @@ static int write_auxtrace(int fd, struct perf_header *h,
 	return err;
 }
 
+static int write_stat(int fd __maybe_unused,
+		      struct perf_header *h __maybe_unused,
+		      struct perf_evlist *evlist __maybe_unused)
+{
+	return 0;
+}
+
 static void print_hostname(struct perf_header *ph, int fd __maybe_unused,
 			   FILE *fp)
 {
@@ -1159,6 +1166,12 @@ static void print_auxtrace(struct perf_header *ph __maybe_unused,
 	fprintf(fp, "# contains AUX area data (e.g. instruction trace)\n");
 }
 
+static void print_stat(struct perf_header *ph __maybe_unused,
+		       int fd __maybe_unused, FILE *fp)
+{
+	fprintf(fp, "# contains stat data\n");
+}
+
 static void print_pmu_mappings(struct perf_header *ph, int fd __maybe_unused,
 			       FILE *fp)
 {
@@ -1948,6 +1961,7 @@ static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
 	FEAT_OPP(HEADER_PMU_MAPPINGS,	pmu_mappings),
 	FEAT_OPP(HEADER_GROUP_DESC,	group_desc),
 	FEAT_OPP(HEADER_AUXTRACE,	auxtrace),
+	FEAT_OPA(HEADER_STAT,		stat),
 };
 
 struct header_print_data {
@@ -2686,6 +2700,152 @@ int perf_event__synthesize_attr(struct perf_tool *tool,
 	return err;
 }
 
+static struct event_update_event *
+event_update_event__new(size_t size, u64 type, u64 id)
+{
+	struct event_update_event *ev;
+
+	size += sizeof(*ev);
+	size  = PERF_ALIGN(size, sizeof(u64));
+
+	ev = zalloc(size);
+	if (ev) {
+		ev->header.type = PERF_RECORD_EVENT_UPDATE;
+		ev->header.size = (u16)size;
+		ev->type = type;
+		ev->id = id;
+	}
+	return ev;
+}
+
+int
+perf_event__synthesize_event_update_unit(struct perf_tool *tool,
+					 struct perf_evsel *evsel,
+					 perf_event__handler_t process)
+{
+	struct event_update_event *ev;
+	size_t size = strlen(evsel->unit);
+	int err;
+
+	ev = event_update_event__new(size + 1, PERF_EVENT_UPDATE__UNIT, evsel->id[0]);
+	if (ev == NULL)
+		return -ENOMEM;
+
+	strncpy(ev->data, evsel->unit, size);
+	err = process(tool, (union perf_event *)ev, NULL, NULL);
+	free(ev);
+	return err;
+}
+
+int
+perf_event__synthesize_event_update_scale(struct perf_tool *tool,
+					  struct perf_evsel *evsel,
+					  perf_event__handler_t process)
+{
+	struct event_update_event *ev;
+	struct event_update_event_scale *ev_data;
+	int err;
+
+	ev = event_update_event__new(sizeof(*ev_data), PERF_EVENT_UPDATE__SCALE, evsel->id[0]);
+	if (ev == NULL)
+		return -ENOMEM;
+
+	ev_data = (struct event_update_event_scale *) ev->data;
+	ev_data->scale = evsel->scale;
+	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	free(ev);
+	return err;
+}
+
+int
+perf_event__synthesize_event_update_name(struct perf_tool *tool,
+					 struct perf_evsel *evsel,
+					 perf_event__handler_t process)
+{
+	struct event_update_event *ev;
+	size_t len = strlen(evsel->name);
+	int err;
+
+	ev = event_update_event__new(len + 1, PERF_EVENT_UPDATE__NAME, evsel->id[0]);
+	if (ev == NULL)
+		return -ENOMEM;
+
+	strncpy(ev->data, evsel->name, len);
+	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	free(ev);
+	return err;
+}
+
+int
+perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
+					struct perf_evsel *evsel,
+					perf_event__handler_t process)
+{
+	size_t size = sizeof(struct event_update_event);
+	struct event_update_event *ev;
+	int max, err;
+	u16 type;
+
+	if (!evsel->own_cpus)
+		return 0;
+
+	ev = cpu_map_data__alloc(evsel->own_cpus, &size, &type, &max);
+	if (!ev)
+		return -ENOMEM;
+
+	ev->header.type = PERF_RECORD_EVENT_UPDATE;
+	ev->header.size = (u16)size;
+	ev->type = PERF_EVENT_UPDATE__CPUS;
+	ev->id   = evsel->id[0];
+
+	cpu_map_data__synthesize((struct cpu_map_data *) ev->data,
+				 evsel->own_cpus,
+				 type, max);
+
+	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	free(ev);
+	return err;
+}
+
+size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp)
+{
+	struct event_update_event *ev = &event->event_update;
+	struct event_update_event_scale *ev_scale;
+	struct event_update_event_cpus *ev_cpus;
+	struct cpu_map *map;
+	size_t ret;
+
+	ret = fprintf(fp, "\n... id:    %" PRIu64 "\n", ev->id);
+
+	switch (ev->type) {
+	case PERF_EVENT_UPDATE__SCALE:
+		ev_scale = (struct event_update_event_scale *) ev->data;
+		ret += fprintf(fp, "... scale: %f\n", ev_scale->scale);
+		break;
+	case PERF_EVENT_UPDATE__UNIT:
+		ret += fprintf(fp, "... unit:  %s\n", ev->data);
+		break;
+	case PERF_EVENT_UPDATE__NAME:
+		ret += fprintf(fp, "... name:  %s\n", ev->data);
+		break;
+	case PERF_EVENT_UPDATE__CPUS:
+		ev_cpus = (struct event_update_event_cpus *) ev->data;
+		ret += fprintf(fp, "... ");
+
+		map = cpu_map__new_data(&ev_cpus->cpus);
+		if (map)
+			ret += cpu_map__fprintf(map, fp);
+		else
+			ret += fprintf(fp, "failed to get cpus\n");
+		break;
+	default:
+		ret += fprintf(fp, "... unknown type\n");
+		break;
+	}
+
+	return ret;
+}
+
 int perf_event__synthesize_attrs(struct perf_tool *tool,
 				   struct perf_session *session,
 				   perf_event__handler_t process)
@@ -2745,6 +2905,51 @@ int perf_event__process_attr(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+int perf_event__process_event_update(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_evlist **pevlist)
+{
+	struct event_update_event *ev = &event->event_update;
+	struct event_update_event_scale *ev_scale;
+	struct event_update_event_cpus *ev_cpus;
+	struct perf_evlist *evlist;
+	struct perf_evsel *evsel;
+	struct cpu_map *map;
+
+	if (!pevlist || *pevlist == NULL)
+		return -EINVAL;
+
+	evlist = *pevlist;
+
+	evsel = perf_evlist__id2evsel(evlist, ev->id);
+	if (evsel == NULL)
+		return -EINVAL;
+
+	switch (ev->type) {
+	case PERF_EVENT_UPDATE__UNIT:
+		evsel->unit = strdup(ev->data);
+		break;
+	case PERF_EVENT_UPDATE__NAME:
+		evsel->name = strdup(ev->data);
+		break;
+	case PERF_EVENT_UPDATE__SCALE:
+		ev_scale = (struct event_update_event_scale *) ev->data;
+		evsel->scale = ev_scale->scale;
+	case PERF_EVENT_UPDATE__CPUS:
+		ev_cpus = (struct event_update_event_cpus *) ev->data;
+
+		map = cpu_map__new_data(&ev_cpus->cpus);
+		if (map)
+			evsel->own_cpus = map;
+		else
+			pr_err("failed to get event_update cpus\n");
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd,
 					struct perf_evlist *evlist,
 					perf_event__handler_t process)
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 05f27cb6b7e3..cff9892452ee 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -31,6 +31,7 @@ enum {
 	HEADER_PMU_MAPPINGS,
 	HEADER_GROUP_DESC,
 	HEADER_AUXTRACE,
+	HEADER_STAT,
 	HEADER_LAST_FEATURE,
 	HEADER_FEAT_BITS	= 256,
 };
@@ -105,8 +106,24 @@ int perf_event__synthesize_attr(struct perf_tool *tool,
 int perf_event__synthesize_attrs(struct perf_tool *tool,
 				 struct perf_session *session,
 				 perf_event__handler_t process);
+int perf_event__synthesize_event_update_unit(struct perf_tool *tool,
+					     struct perf_evsel *evsel,
+					     perf_event__handler_t process);
+int perf_event__synthesize_event_update_scale(struct perf_tool *tool,
+					      struct perf_evsel *evsel,
+					      perf_event__handler_t process);
+int perf_event__synthesize_event_update_name(struct perf_tool *tool,
+					     struct perf_evsel *evsel,
+					     perf_event__handler_t process);
+int perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
+					     struct perf_evsel *evsel,
+					     perf_event__handler_t process);
 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
 			     struct perf_evlist **pevlist);
+int perf_event__process_event_update(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_evlist **pevlist);
+size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
 
 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
 					int fd, struct perf_evlist *evlist,
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
new file mode 100644
index 000000000000..dc1e41c9b054
--- /dev/null
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -0,0 +1,103 @@
+#include "cache.h"
+#include <subcmd/help.h>
+#include "../builtin.h"
+#include "levenshtein.h"
+
+static int autocorrect;
+static struct cmdnames aliases;
+
+static int perf_unknown_cmd_config(const char *var, const char *value, void *cb)
+{
+	if (!strcmp(var, "help.autocorrect"))
+		autocorrect = perf_config_int(var,value);
+	/* Also use aliases for command lookup */
+	if (!prefixcmp(var, "alias."))
+		add_cmdname(&aliases, var + 6, strlen(var + 6));
+
+	return perf_default_config(var, value, cb);
+}
+
+static int levenshtein_compare(const void *p1, const void *p2)
+{
+	const struct cmdname *const *c1 = p1, *const *c2 = p2;
+	const char *s1 = (*c1)->name, *s2 = (*c2)->name;
+	int l1 = (*c1)->len;
+	int l2 = (*c2)->len;
+	return l1 != l2 ? l1 - l2 : strcmp(s1, s2);
+}
+
+static void add_cmd_list(struct cmdnames *cmds, struct cmdnames *old)
+{
+	unsigned int i;
+
+	ALLOC_GROW(cmds->names, cmds->cnt + old->cnt, cmds->alloc);
+
+	for (i = 0; i < old->cnt; i++)
+		cmds->names[cmds->cnt++] = old->names[i];
+	zfree(&old->names);
+	old->cnt = 0;
+}
+
+const char *help_unknown_cmd(const char *cmd)
+{
+	unsigned int i, n = 0, best_similarity = 0;
+	struct cmdnames main_cmds, other_cmds;
+
+	memset(&main_cmds, 0, sizeof(main_cmds));
+	memset(&other_cmds, 0, sizeof(main_cmds));
+	memset(&aliases, 0, sizeof(aliases));
+
+	perf_config(perf_unknown_cmd_config, NULL);
+
+	load_command_list("perf-", &main_cmds, &other_cmds);
+
+	add_cmd_list(&main_cmds, &aliases);
+	add_cmd_list(&main_cmds, &other_cmds);
+	qsort(main_cmds.names, main_cmds.cnt,
+	      sizeof(main_cmds.names), cmdname_compare);
+	uniq(&main_cmds);
+
+	if (main_cmds.cnt) {
+		/* This reuses cmdname->len for similarity index */
+		for (i = 0; i < main_cmds.cnt; ++i)
+			main_cmds.names[i]->len =
+				levenshtein(cmd, main_cmds.names[i]->name, 0, 2, 1, 4);
+
+		qsort(main_cmds.names, main_cmds.cnt,
+		      sizeof(*main_cmds.names), levenshtein_compare);
+
+		best_similarity = main_cmds.names[0]->len;
+		n = 1;
+		while (n < main_cmds.cnt && best_similarity == main_cmds.names[n]->len)
+			++n;
+	}
+
+	if (autocorrect && n == 1) {
+		const char *assumed = main_cmds.names[0]->name;
+
+		main_cmds.names[0] = NULL;
+		clean_cmdnames(&main_cmds);
+		fprintf(stderr, "WARNING: You called a perf program named '%s', "
+			"which does not exist.\n"
+			"Continuing under the assumption that you meant '%s'\n",
+			cmd, assumed);
+		if (autocorrect > 0) {
+			fprintf(stderr, "in %0.1f seconds automatically...\n",
+				(float)autocorrect/10.0);
+			poll(NULL, 0, autocorrect * 100);
+		}
+		return assumed;
+	}
+
+	fprintf(stderr, "perf: '%s' is not a perf-command. See 'perf --help'.\n", cmd);
+
+	if (main_cmds.cnt && best_similarity < 6) {
+		fprintf(stderr, "\nDid you mean %s?\n",
+			n < 2 ? "this": "one of these");
+
+		for (i = 0; i < n; i++)
+			fprintf(stderr, "\t%s\n", main_cmds.names[i]->name);
+	}
+
+	exit(1);
+}
diff --git a/tools/perf/util/help-unknown-cmd.h b/tools/perf/util/help-unknown-cmd.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/perf/util/help-unknown-cmd.h
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 4fd37d6708cb..c226303e3da0 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -254,6 +254,7 @@ static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
 	he_stat__decay(&he->stat);
 	if (symbol_conf.cumulate_callchain)
 		he_stat__decay(he->stat_acc);
+	decay_callchain(he->callchain);
 
 	diff = prev_period - he->stat.period;
 
@@ -270,6 +271,8 @@ static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
 
 	if (sort__need_collapse)
 		rb_erase(&he->rb_node_in, &hists->entries_collapsed);
+	else
+		rb_erase(&he->rb_node_in, hists->entries_in);
 
 	--hists->nr_entries;
 	if (!he->filtered)
@@ -367,6 +370,25 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template,
 		if (symbol_conf.use_callchain)
 			callchain_init(he->callchain);
 
+		if (he->raw_data) {
+			he->raw_data = memdup(he->raw_data, he->raw_size);
+
+			if (he->raw_data == NULL) {
+				map__put(he->ms.map);
+				if (he->branch_info) {
+					map__put(he->branch_info->from.map);
+					map__put(he->branch_info->to.map);
+					free(he->branch_info);
+				}
+				if (he->mem_info) {
+					map__put(he->mem_info->iaddr.map);
+					map__put(he->mem_info->daddr.map);
+				}
+				free(he->stat_acc);
+				free(he);
+				return NULL;
+			}
+		}
 		INIT_LIST_HEAD(&he->pairs.node);
 		thread__get(he->thread);
 	}
@@ -459,7 +481,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
 				      struct symbol *sym_parent,
 				      struct branch_info *bi,
 				      struct mem_info *mi,
-				      u64 period, u64 weight, u64 transaction,
+				      struct perf_sample *sample,
 				      bool sample_self)
 {
 	struct hist_entry entry = {
@@ -476,15 +498,17 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
 		.level	 = al->level,
 		.stat = {
 			.nr_events = 1,
-			.period	= period,
-			.weight = weight,
+			.period	= sample->period,
+			.weight = sample->weight,
 		},
 		.parent = sym_parent,
 		.filtered = symbol__parent_filter(sym_parent) | al->filtered,
 		.hists	= hists,
 		.branch_info = bi,
 		.mem_info = mi,
-		.transaction = transaction,
+		.transaction = sample->transaction,
+		.raw_data = sample->raw_data,
+		.raw_size = sample->raw_size,
 	};
 
 	return hists__findnew_entry(hists, &entry, al, sample_self);
@@ -524,12 +548,13 @@ iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al
 	u64 cost;
 	struct mem_info *mi = iter->priv;
 	struct hists *hists = evsel__hists(iter->evsel);
+	struct perf_sample *sample = iter->sample;
 	struct hist_entry *he;
 
 	if (mi == NULL)
 		return -EINVAL;
 
-	cost = iter->sample->weight;
+	cost = sample->weight;
 	if (!cost)
 		cost = 1;
 
@@ -540,8 +565,10 @@ iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al
 	 * and this is indirectly achieved by passing period=weight here
 	 * and the he_stat__add_period() function.
 	 */
+	sample->period = cost;
+
 	he = __hists__add_entry(hists, al, iter->parent, NULL, mi,
-				cost, cost, 0, true);
+				sample, true);
 	if (!he)
 		return -ENOMEM;
 
@@ -628,6 +655,7 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a
 	struct branch_info *bi;
 	struct perf_evsel *evsel = iter->evsel;
 	struct hists *hists = evsel__hists(evsel);
+	struct perf_sample *sample = iter->sample;
 	struct hist_entry *he = NULL;
 	int i = iter->curr;
 	int err = 0;
@@ -641,9 +669,11 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a
 	 * The report shows the percentage of total branches captured
 	 * and not events sampled. Thus we use a pseudo period of 1.
 	 */
+	sample->period = 1;
+	sample->weight = bi->flags.cycles ? bi->flags.cycles : 1;
+
 	he = __hists__add_entry(hists, al, iter->parent, &bi[i], NULL,
-				1, bi->flags.cycles ? bi->flags.cycles : 1,
-				0, true);
+				sample, true);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -680,8 +710,7 @@ iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location
 	struct hist_entry *he;
 
 	he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
-				sample->period, sample->weight,
-				sample->transaction, true);
+				sample, true);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -742,8 +771,7 @@ iter_add_single_cumulative_entry(struct hist_entry_iter *iter,
 	int err = 0;
 
 	he = __hists__add_entry(hists, al, iter->parent, NULL, NULL,
-				sample->period, sample->weight,
-				sample->transaction, true);
+				sample, true);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -795,6 +823,8 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
 			.sym = al->sym,
 		},
 		.parent = iter->parent,
+		.raw_data = sample->raw_data,
+		.raw_size = sample->raw_size,
 	};
 	int i;
 	struct callchain_cursor cursor;
@@ -816,8 +846,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
 	}
 
 	he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
-				sample->period, sample->weight,
-				sample->transaction, false);
+				sample, false);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -924,9 +953,6 @@ hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
 	int64_t cmp = 0;
 
 	perf_hpp__for_each_sort_list(fmt) {
-		if (perf_hpp__should_skip(fmt))
-			continue;
-
 		cmp = fmt->cmp(fmt, left, right);
 		if (cmp)
 			break;
@@ -942,9 +968,6 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
 	int64_t cmp = 0;
 
 	perf_hpp__for_each_sort_list(fmt) {
-		if (perf_hpp__should_skip(fmt))
-			continue;
-
 		cmp = fmt->collapse(fmt, left, right);
 		if (cmp)
 			break;
@@ -975,6 +998,8 @@ void hist_entry__delete(struct hist_entry *he)
 	if (he->srcfile && he->srcfile[0])
 		free(he->srcfile);
 	free_callchain(he->callchain);
+	free(he->trace_output);
+	free(he->raw_data);
 	free(he);
 }
 
@@ -982,9 +1007,8 @@ void hist_entry__delete(struct hist_entry *he)
  * collapse the histogram
  */
 
-static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
-					 struct rb_root *root,
-					 struct hist_entry *he)
+bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
+				  struct rb_root *root, struct hist_entry *he)
 {
 	struct rb_node **p = &root->rb_node;
 	struct rb_node *parent = NULL;
@@ -1024,7 +1048,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
 	return true;
 }
 
-static struct rb_root *hists__get_rotate_entries_in(struct hists *hists)
+struct rb_root *hists__get_rotate_entries_in(struct hists *hists)
 {
 	struct rb_root *root;
 
@@ -1088,7 +1112,7 @@ static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
 	int64_t cmp = 0;
 
 	perf_hpp__for_each_sort_list(fmt) {
-		if (perf_hpp__should_skip(fmt))
+		if (perf_hpp__should_skip(fmt, a->hists))
 			continue;
 
 		cmp = fmt->sort(fmt, a, b);
@@ -1559,10 +1583,8 @@ int perf_hist_config(const char *var, const char *value)
 	return 0;
 }
 
-static int hists_evsel__init(struct perf_evsel *evsel)
+int __hists__init(struct hists *hists)
 {
-	struct hists *hists = evsel__hists(evsel);
-
 	memset(hists, 0, sizeof(*hists));
 	hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT;
 	hists->entries_in = &hists->entries_in_array[0];
@@ -1573,6 +1595,43 @@ static int hists_evsel__init(struct perf_evsel *evsel)
 	return 0;
 }
 
+static void hists__delete_remaining_entries(struct rb_root *root)
+{
+	struct rb_node *node;
+	struct hist_entry *he;
+
+	while (!RB_EMPTY_ROOT(root)) {
+		node = rb_first(root);
+		rb_erase(node, root);
+
+		he = rb_entry(node, struct hist_entry, rb_node_in);
+		hist_entry__delete(he);
+	}
+}
+
+static void hists__delete_all_entries(struct hists *hists)
+{
+	hists__delete_entries(hists);
+	hists__delete_remaining_entries(&hists->entries_in_array[0]);
+	hists__delete_remaining_entries(&hists->entries_in_array[1]);
+	hists__delete_remaining_entries(&hists->entries_collapsed);
+}
+
+static void hists_evsel__exit(struct perf_evsel *evsel)
+{
+	struct hists *hists = evsel__hists(evsel);
+
+	hists__delete_all_entries(hists);
+}
+
+static int hists_evsel__init(struct perf_evsel *evsel)
+{
+	struct hists *hists = evsel__hists(evsel);
+
+	__hists__init(hists);
+	return 0;
+}
+
 /*
  * XXX We probably need a hists_evsel__exit() to free the hist_entries
  * stored in the rbtree...
@@ -1581,7 +1640,8 @@ static int hists_evsel__init(struct perf_evsel *evsel)
 int hists__init(void)
 {
 	int err = perf_evsel__object_config(sizeof(struct hists_evsel),
-					    hists_evsel__init, NULL);
+					    hists_evsel__init,
+					    hists_evsel__exit);
 	if (err)
 		fputs("FATAL ERROR: Couldn't setup hists class\n", stderr);
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index a48a2078d288..d4ec4822a103 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -52,6 +52,7 @@ enum hist_column {
 	HISTC_MEM_IADDR_SYMBOL,
 	HISTC_TRANSACTION,
 	HISTC_CYCLES,
+	HISTC_TRACE,
 	HISTC_NR_COLS, /* Last entry */
 };
 
@@ -114,8 +115,8 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
 				      struct addr_location *al,
 				      struct symbol *parent,
 				      struct branch_info *bi,
-				      struct mem_info *mi, u64 period,
-				      u64 weight, u64 transaction,
+				      struct mem_info *mi,
+				      struct perf_sample *sample,
 				      bool sample_self);
 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
 			 int max_stack_depth, void *arg);
@@ -184,6 +185,11 @@ static inline struct hists *evsel__hists(struct perf_evsel *evsel)
 }
 
 int hists__init(void);
+int __hists__init(struct hists *hists);
+
+struct rb_root *hists__get_rotate_entries_in(struct hists *hists);
+bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
+				  struct rb_root *root, struct hist_entry *he);
 
 struct perf_hpp {
 	char *buf;
@@ -261,10 +267,20 @@ void perf_hpp__append_sort_keys(void);
 
 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
 bool perf_hpp__same_sort_entry(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
+bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format);
+bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists);
 
-static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format)
+static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format,
+					 struct hists *hists)
 {
-	return format->elide;
+	if (format->elide)
+		return true;
+
+	if (perf_hpp__is_dynamic_entry(format) &&
+	    !perf_hpp__defined_dynamic_entry(format, hists))
+		return true;
+
+	return false;
 }
 
 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
diff --git a/tools/perf/util/include/linux/string.h b/tools/perf/util/include/linux/string.h
deleted file mode 100644
index 6f19c548ecc0..000000000000
--- a/tools/perf/util/include/linux/string.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <string.h>
-
-void *memdup(const void *src, size_t len);
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 97f963a3dcb9..81a2eb77ba7f 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1744,7 +1744,7 @@ static void intel_pt_free(struct perf_session *session)
 	auxtrace_heap__free(&pt->heap);
 	intel_pt_free_events(session);
 	session->auxtrace = NULL;
-	thread__delete(pt->unknown_thread);
+	thread__put(pt->unknown_thread);
 	free(pt);
 }
 
@@ -2153,7 +2153,7 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
 	return 0;
 
 err_delete_thread:
-	thread__delete(pt->unknown_thread);
+	thread__zput(pt->unknown_thread);
 err_free_queues:
 	intel_pt_log_disable();
 	auxtrace_queues__free(&pt->queues);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 8b303ff20289..ad79297c76c8 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -25,6 +25,7 @@ static void dsos__init(struct dsos *dsos)
 
 int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 {
+	memset(machine, 0, sizeof(*machine));
 	map_groups__init(&machine->kmaps, machine);
 	RB_CLEAR_NODE(&machine->rb_node);
 	dsos__init(&machine->dsos);
@@ -44,6 +45,8 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 	machine->comm_exec = false;
 	machine->kernel_start = 0;
 
+	memset(machine->vmlinux_maps, 0, sizeof(machine->vmlinux_maps));
+
 	machine->root_dir = strdup(root_dir);
 	if (machine->root_dir == NULL)
 		return -ENOMEM;
@@ -122,6 +125,7 @@ void machine__delete_threads(struct machine *machine)
 
 void machine__exit(struct machine *machine)
 {
+	machine__destroy_kernel_maps(machine);
 	map_groups__exit(&machine->kmaps);
 	dsos__exit(&machine->dsos);
 	machine__exit_vdso(machine);
@@ -348,13 +352,18 @@ static void machine__update_thread_pid(struct machine *machine,
 	}
 
 	th->mg = map_groups__get(leader->mg);
-
+out_put:
+	thread__put(leader);
 	return;
-
 out_err:
 	pr_err("Failed to join map groups for %d:%d\n", th->pid_, th->tid);
+	goto out_put;
 }
 
+/*
+ * Caller must eventually drop thread->refcnt returned with a successfull
+ * lookup/new thread inserted.
+ */
 static struct thread *____machine__findnew_thread(struct machine *machine,
 						  pid_t pid, pid_t tid,
 						  bool create)
@@ -372,7 +381,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 	if (th != NULL) {
 		if (th->tid == tid) {
 			machine__update_thread_pid(machine, th, pid);
-			return th;
+			return thread__get(th);
 		}
 
 		machine->last_match = NULL;
@@ -385,7 +394,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 		if (th->tid == tid) {
 			machine->last_match = th;
 			machine__update_thread_pid(machine, th, pid);
-			return th;
+			return thread__get(th);
 		}
 
 		if (tid < th->tid)
@@ -413,7 +422,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 		if (thread__init_map_groups(th, machine)) {
 			rb_erase_init(&th->rb_node, &machine->threads);
 			RB_CLEAR_NODE(&th->rb_node);
-			thread__delete(th);
+			thread__put(th);
 			return NULL;
 		}
 		/*
@@ -437,7 +446,7 @@ struct thread *machine__findnew_thread(struct machine *machine, pid_t pid,
 	struct thread *th;
 
 	pthread_rwlock_wrlock(&machine->threads_lock);
-	th = thread__get(__machine__findnew_thread(machine, pid, tid));
+	th = __machine__findnew_thread(machine, pid, tid);
 	pthread_rwlock_unlock(&machine->threads_lock);
 	return th;
 }
@@ -447,7 +456,7 @@ struct thread *machine__find_thread(struct machine *machine, pid_t pid,
 {
 	struct thread *th;
 	pthread_rwlock_rdlock(&machine->threads_lock);
-	th =  thread__get(____machine__findnew_thread(machine, pid, tid, false));
+	th =  ____machine__findnew_thread(machine, pid, tid, false);
 	pthread_rwlock_unlock(&machine->threads_lock);
 	return th;
 }
@@ -560,11 +569,29 @@ int machine__process_switch_event(struct machine *machine __maybe_unused,
 	return 0;
 }
 
+static void dso__adjust_kmod_long_name(struct dso *dso, const char *filename)
+{
+	const char *dup_filename;
+
+	if (!filename || !dso || !dso->long_name)
+		return;
+	if (dso->long_name[0] != '[')
+		return;
+	if (!strchr(filename, '/'))
+		return;
+
+	dup_filename = strdup(filename);
+	if (!dup_filename)
+		return;
+
+	dso__set_long_name(dso, dup_filename, true);
+}
+
 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 					const char *filename)
 {
 	struct map *map = NULL;
-	struct dso *dso;
+	struct dso *dso = NULL;
 	struct kmod_path m;
 
 	if (kmod_path__parse_name(&m, filename))
@@ -572,8 +599,15 @@ struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 
 	map = map_groups__find_by_name(&machine->kmaps, MAP__FUNCTION,
 				       m.name);
-	if (map)
+	if (map) {
+		/*
+		 * If the map's dso is an offline module, give dso__load()
+		 * a chance to find the file path of that module by fixing
+		 * long_name.
+		 */
+		dso__adjust_kmod_long_name(map->dso, filename);
 		goto out;
+	}
 
 	dso = machine__findnew_module_dso(machine, &m, filename);
 	if (dso == NULL)
@@ -585,7 +619,11 @@ struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 
 	map_groups__insert(&machine->kmaps, map);
 
+	/* Put the map here because map_groups__insert alread got it */
+	map__put(map);
 out:
+	/* put the dso here, corresponding to  machine__findnew_module_dso */
+	dso__put(dso);
 	free(m.name);
 	return map;
 }
@@ -740,6 +778,9 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel)
 	enum map_type type;
 	u64 start = machine__get_running_kernel_start(machine, NULL);
 
+	/* In case of renewal the kernel map, destroy previous one */
+	machine__destroy_kernel_maps(machine);
+
 	for (type = 0; type < MAP__NR_TYPES; ++type) {
 		struct kmap *kmap;
 		struct map *map;
@@ -788,6 +829,7 @@ void machine__destroy_kernel_maps(struct machine *machine)
 				kmap->ref_reloc_sym = NULL;
 		}
 
+		map__put(machine->vmlinux_maps[type]);
 		machine->vmlinux_maps[type] = NULL;
 	}
 }
@@ -1084,11 +1126,14 @@ int machine__create_kernel_maps(struct machine *machine)
 	struct dso *kernel = machine__get_kernel(machine);
 	const char *name;
 	u64 addr = machine__get_running_kernel_start(machine, &name);
-	if (!addr)
+	int ret;
+
+	if (!addr || kernel == NULL)
 		return -1;
 
-	if (kernel == NULL ||
-	    __machine__create_kernel_maps(machine, kernel) < 0)
+	ret = __machine__create_kernel_maps(machine, kernel);
+	dso__put(kernel);
+	if (ret < 0)
 		return -1;
 
 	if (symbol_conf.use_modules && machine__create_modules(machine) < 0) {
@@ -1609,6 +1654,8 @@ static int add_callchain_ip(struct thread *thread,
 		}
 	}
 
+	if (symbol_conf.hide_unresolved && al.sym == NULL)
+		return 0;
 	return callchain_cursor_append(&callchain_cursor, al.addr, al.map, al.sym);
 }
 
@@ -1863,6 +1910,9 @@ check_calls:
 static int unwind_entry(struct unwind_entry *entry, void *arg)
 {
 	struct callchain_cursor *cursor = arg;
+
+	if (symbol_conf.hide_unresolved && entry->sym == NULL)
+		return 0;
 	return callchain_cursor_append(cursor, entry->ip,
 				       entry->map, entry->sym);
 }
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index afc6b56cf749..171b6d10a04b 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -26,8 +26,8 @@ const char *map_type__name[MAP__NR_TYPES] = {
 static inline int is_anon_memory(const char *filename)
 {
 	return !strcmp(filename, "//anon") ||
-	       !strcmp(filename, "/dev/zero (deleted)") ||
-	       !strcmp(filename, "/anon_hugepage (deleted)");
+	       !strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) ||
+	       !strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1);
 }
 
 static inline int is_no_dso_memory(const char *filename)
@@ -691,6 +691,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
 			__map_groups__insert(pos->groups, before);
 			if (verbose >= 2)
 				map__fprintf(before, fp);
+			map__put(before);
 		}
 
 		if (map->end < pos->end) {
@@ -705,6 +706,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
 			__map_groups__insert(pos->groups, after);
 			if (verbose >= 2)
 				map__fprintf(after, fp);
+			map__put(after);
 		}
 put_map:
 		map__put(pos);
@@ -742,6 +744,7 @@ int map_groups__clone(struct map_groups *mg,
 		if (new == NULL)
 			goto out_unlock;
 		map_groups__insert(mg, new);
+		map__put(new);
 	}
 
 	err = 0;
diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 355eecf6bf59..afc088dd7d20 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -1,7 +1,7 @@
 #include "perf.h"
 #include "util/util.h"
 #include "util/debug.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-branch-options.h"
 
 #define BRANCH_OPT(n, m) \
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 6fc8cd753e1a..4f7b0efdde2f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -4,9 +4,9 @@
 #include "../perf.h"
 #include "evlist.h"
 #include "evsel.h"
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 #include "parse-events.h"
-#include "exec_cmd.h"
+#include <subcmd/exec-cmd.h>
 #include "string.h"
 #include "symbol.h"
 #include "cache.h"
diff --git a/tools/perf/util/parse-regs-options.c b/tools/perf/util/parse-regs-options.c
index 4f2c1c255d81..646ecf736aad 100644
--- a/tools/perf/util/parse-regs-options.c
+++ b/tools/perf/util/parse-regs-options.c
@@ -1,7 +1,7 @@
 #include "perf.h"
 #include "util/util.h"
 #include "util/debug.h"
-#include "util/parse-options.h"
+#include <subcmd/parse-options.h>
 #include "util/parse-regs-options.h"
 
 int
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index 5d13cb45b317..3654d964e49d 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -22,24 +22,6 @@ static const char *get_perf_dir(void)
 	return ".";
 }
 
-/*
- * If libc has strlcpy() then that version will override this
- * implementation:
- */
-size_t __weak strlcpy(char *dest, const char *src, size_t size)
-{
-	size_t ret = strlen(src);
-
-	if (size) {
-		size_t len = (ret >= size) ? size - 1 : ret;
-
-		memcpy(dest, src, len);
-		dest[len] = '\0';
-	}
-
-	return ret;
-}
-
 static char *get_pathname(void)
 {
 	static char pathname_array[4][PATH_MAX];
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index e4b173dec4b9..b597bcc8fc78 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -220,6 +220,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
 	alias->scale = 1.0;
 	alias->unit[0] = '\0';
 	alias->per_pkg = false;
+	alias->snapshot = false;
 
 	ret = parse_events_terms(&alias->terms, val);
 	if (ret) {
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 03875f9154e7..93996ec4bbe3 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2326,8 +2326,11 @@ static int get_new_event_name(char *buf, size_t len, const char *base,
 		goto out;
 
 	if (!allow_suffix) {
-		pr_warning("Error: event \"%s\" already exists. "
-			   "(Use -f to force duplicates.)\n", buf);
+		pr_warning("Error: event \"%s\" already exists.\n"
+			   " Hint: Remove existing event by 'perf probe -d'\n"
+			   "       or force duplicates by 'perf probe -f'\n"
+			   "       or set 'force=yes' in BPF source.\n",
+			   buf);
 		ret = -EEXIST;
 		goto out;
 	}
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 05012bb178d7..2be10fb27172 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -654,6 +654,7 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwfl_Module *mod,
 static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
 {
 	Dwarf_Attribute fb_attr;
+	Dwarf_Frame *frame = NULL;
 	size_t nops;
 	int ret;
 
@@ -686,11 +687,11 @@ static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
 #if _ELFUTILS_PREREQ(0, 142)
 	} else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa &&
 		   pf->cfi != NULL) {
-		Dwarf_Frame *frame;
 		if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 ||
 		    dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) {
 			pr_warning("Failed to get call frame on 0x%jx\n",
 				   (uintmax_t)pf->addr);
+			free(frame);
 			return -ENOENT;
 		}
 #endif
@@ -699,7 +700,8 @@ static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
 	/* Call finder's callback handler */
 	ret = pf->callback(sc_die, pf);
 
-	/* *pf->fb_ops will be cached in libdw. Don't free it. */
+	/* Since *pf->fb_ops can be a part of frame. we should free it here. */
+	free(frame);
 	pf->fb_ops = NULL;
 
 	return ret;
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 51be28b1bca2..8162ba0e2e57 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -10,6 +10,8 @@ util/ctype.c
 util/evlist.c
 util/evsel.c
 util/cpumap.c
+../lib/bitmap.c
+../lib/find_bit.c
 ../lib/hweight.c
 util/thread_map.c
 util/util.c
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index a8e825fca42a..d72fafc1c800 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -41,6 +41,9 @@
 #include "../thread-stack.h"
 #include "../trace-event.h"
 #include "../machine.h"
+#include "thread_map.h"
+#include "cpumap.h"
+#include "stat.h"
 
 PyMODINIT_FUNC initperf_trace_context(void);
 
@@ -859,6 +862,104 @@ static void python_process_event(union perf_event *event,
 	}
 }
 
+static void get_handler_name(char *str, size_t size,
+			     struct perf_evsel *evsel)
+{
+	char *p = str;
+
+	scnprintf(str, size, "stat__%s", perf_evsel__name(evsel));
+
+	while ((p = strchr(p, ':'))) {
+		*p = '_';
+		p++;
+	}
+}
+
+static void
+process_stat(struct perf_evsel *counter, int cpu, int thread, u64 tstamp,
+	     struct perf_counts_values *count)
+{
+	PyObject *handler, *t;
+	static char handler_name[256];
+	int n = 0;
+
+	t = PyTuple_New(MAX_FIELDS);
+	if (!t)
+		Py_FatalError("couldn't create Python tuple");
+
+	get_handler_name(handler_name, sizeof(handler_name),
+			 counter);
+
+	handler = get_handler(handler_name);
+	if (!handler) {
+		pr_debug("can't find python handler %s\n", handler_name);
+		return;
+	}
+
+	PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
+	PyTuple_SetItem(t, n++, PyInt_FromLong(thread));
+
+	tuple_set_u64(t, n++, tstamp);
+	tuple_set_u64(t, n++, count->val);
+	tuple_set_u64(t, n++, count->ena);
+	tuple_set_u64(t, n++, count->run);
+
+	if (_PyTuple_Resize(&t, n) == -1)
+		Py_FatalError("error resizing Python tuple");
+
+	call_object(handler, t, handler_name);
+
+	Py_DECREF(t);
+}
+
+static void python_process_stat(struct perf_stat_config *config,
+				struct perf_evsel *counter, u64 tstamp)
+{
+	struct thread_map *threads = counter->threads;
+	struct cpu_map *cpus = counter->cpus;
+	int cpu, thread;
+
+	if (config->aggr_mode == AGGR_GLOBAL) {
+		process_stat(counter, -1, -1, tstamp,
+			     &counter->counts->aggr);
+		return;
+	}
+
+	for (thread = 0; thread < threads->nr; thread++) {
+		for (cpu = 0; cpu < cpus->nr; cpu++) {
+			process_stat(counter, cpus->map[cpu],
+				     thread_map__pid(threads, thread), tstamp,
+				     perf_counts(counter->counts, cpu, thread));
+		}
+	}
+}
+
+static void python_process_stat_interval(u64 tstamp)
+{
+	PyObject *handler, *t;
+	static const char handler_name[] = "stat__interval";
+	int n = 0;
+
+	t = PyTuple_New(MAX_FIELDS);
+	if (!t)
+		Py_FatalError("couldn't create Python tuple");
+
+	handler = get_handler(handler_name);
+	if (!handler) {
+		pr_debug("can't find python handler %s\n", handler_name);
+		return;
+	}
+
+	tuple_set_u64(t, n++, tstamp);
+
+	if (_PyTuple_Resize(&t, n) == -1)
+		Py_FatalError("error resizing Python tuple");
+
+	call_object(handler, t, handler_name);
+
+	Py_DECREF(t);
+}
+
 static int run_start_sub(void)
 {
 	main_module = PyImport_AddModule("__main__");
@@ -1201,10 +1302,12 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
 }
 
 struct scripting_ops python_scripting_ops = {
-	.name = "Python",
-	.start_script = python_start_script,
-	.flush_script = python_flush_script,
-	.stop_script = python_stop_script,
-	.process_event = python_process_event,
-	.generate_script = python_generate_script,
+	.name			= "Python",
+	.start_script		= python_start_script,
+	.flush_script		= python_flush_script,
+	.stop_script		= python_stop_script,
+	.process_event		= python_process_event,
+	.process_stat		= python_process_stat,
+	.process_stat_interval	= python_process_stat_interval,
+	.generate_script	= python_generate_script,
 };
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c35ffdd360fe..d5636ba94b20 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -17,6 +17,7 @@
 #include "asm/bug.h"
 #include "auxtrace.h"
 #include "thread-stack.h"
+#include "stat.h"
 
 static int perf_session__deliver_event(struct perf_session *session,
 				       union perf_event *event,
@@ -36,6 +37,9 @@ static int perf_session__open(struct perf_session *session)
 	if (perf_data_file__is_pipe(file))
 		return 0;
 
+	if (perf_header__has_feat(&session->header, HEADER_STAT))
+		return 0;
+
 	if (!perf_evlist__valid_sample_type(session->evlist)) {
 		pr_err("non matching sample_type\n");
 		return -1;
@@ -205,6 +209,18 @@ static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+static int process_event_synth_event_update_stub(struct perf_tool *tool __maybe_unused,
+						 union perf_event *event __maybe_unused,
+						 struct perf_evlist **pevlist
+						 __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_event_update(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
 				     union perf_event *event __maybe_unused,
 				     struct perf_sample *sample __maybe_unused,
@@ -296,6 +312,67 @@ int process_event_auxtrace_error_stub(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+
+static
+int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused,
+				  union perf_event *event __maybe_unused,
+				  struct perf_session *session __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_thread_map(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
+static
+int process_event_cpu_map_stub(struct perf_tool *tool __maybe_unused,
+			       union perf_event *event __maybe_unused,
+			       struct perf_session *session __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_cpu_map(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
+static
+int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
+				   union perf_event *event __maybe_unused,
+				   struct perf_session *session __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_stat_config(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
+static int process_stat_stub(struct perf_tool *tool __maybe_unused,
+			     union perf_event *event __maybe_unused,
+			     struct perf_session *perf_session
+			     __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_stat(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
+static int process_stat_round_stub(struct perf_tool *tool __maybe_unused,
+				   union perf_event *event __maybe_unused,
+				   struct perf_session *perf_session
+				   __maybe_unused)
+{
+	if (dump_trace)
+		perf_event__fprintf_stat_round(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 void perf_tool__fill_defaults(struct perf_tool *tool)
 {
 	if (tool->sample == NULL)
@@ -328,6 +405,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 		tool->unthrottle = process_event_stub;
 	if (tool->attr == NULL)
 		tool->attr = process_event_synth_attr_stub;
+	if (tool->event_update == NULL)
+		tool->event_update = process_event_synth_event_update_stub;
 	if (tool->tracing_data == NULL)
 		tool->tracing_data = process_event_synth_tracing_data_stub;
 	if (tool->build_id == NULL)
@@ -346,6 +425,16 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 		tool->auxtrace = process_event_auxtrace_stub;
 	if (tool->auxtrace_error == NULL)
 		tool->auxtrace_error = process_event_auxtrace_error_stub;
+	if (tool->thread_map == NULL)
+		tool->thread_map = process_event_thread_map_stub;
+	if (tool->cpu_map == NULL)
+		tool->cpu_map = process_event_cpu_map_stub;
+	if (tool->stat_config == NULL)
+		tool->stat_config = process_event_stat_config_stub;
+	if (tool->stat == NULL)
+		tool->stat = process_stat_stub;
+	if (tool->stat_round == NULL)
+		tool->stat_round = process_stat_round_stub;
 }
 
 static void swap_sample_id_all(union perf_event *event, void *data)
@@ -569,6 +658,13 @@ static void perf_event__hdr_attr_swap(union perf_event *event,
 	mem_bswap_64(event->attr.id, size);
 }
 
+static void perf_event__event_update_swap(union perf_event *event,
+					  bool sample_id_all __maybe_unused)
+{
+	event->event_update.type = bswap_64(event->event_update.type);
+	event->event_update.id   = bswap_64(event->event_update.id);
+}
+
 static void perf_event__event_type_swap(union perf_event *event,
 					bool sample_id_all __maybe_unused)
 {
@@ -616,6 +712,81 @@ static void perf_event__auxtrace_error_swap(union perf_event *event,
 	event->auxtrace_error.ip   = bswap_64(event->auxtrace_error.ip);
 }
 
+static void perf_event__thread_map_swap(union perf_event *event,
+					bool sample_id_all __maybe_unused)
+{
+	unsigned i;
+
+	event->thread_map.nr = bswap_64(event->thread_map.nr);
+
+	for (i = 0; i < event->thread_map.nr; i++)
+		event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid);
+}
+
+static void perf_event__cpu_map_swap(union perf_event *event,
+				     bool sample_id_all __maybe_unused)
+{
+	struct cpu_map_data *data = &event->cpu_map.data;
+	struct cpu_map_entries *cpus;
+	struct cpu_map_mask *mask;
+	unsigned i;
+
+	data->type = bswap_64(data->type);
+
+	switch (data->type) {
+	case PERF_CPU_MAP__CPUS:
+		cpus = (struct cpu_map_entries *)data->data;
+
+		cpus->nr = bswap_16(cpus->nr);
+
+		for (i = 0; i < cpus->nr; i++)
+			cpus->cpu[i] = bswap_16(cpus->cpu[i]);
+		break;
+	case PERF_CPU_MAP__MASK:
+		mask = (struct cpu_map_mask *) data->data;
+
+		mask->nr = bswap_16(mask->nr);
+		mask->long_size = bswap_16(mask->long_size);
+
+		switch (mask->long_size) {
+		case 4: mem_bswap_32(&mask->mask, mask->nr); break;
+		case 8: mem_bswap_64(&mask->mask, mask->nr); break;
+		default:
+			pr_err("cpu_map swap: unsupported long size\n");
+		}
+	default:
+		break;
+	}
+}
+
+static void perf_event__stat_config_swap(union perf_event *event,
+					 bool sample_id_all __maybe_unused)
+{
+	u64 size;
+
+	size  = event->stat_config.nr * sizeof(event->stat_config.data[0]);
+	size += 1; /* nr item itself */
+	mem_bswap_64(&event->stat_config.nr, size);
+}
+
+static void perf_event__stat_swap(union perf_event *event,
+				  bool sample_id_all __maybe_unused)
+{
+	event->stat.id     = bswap_64(event->stat.id);
+	event->stat.thread = bswap_32(event->stat.thread);
+	event->stat.cpu    = bswap_32(event->stat.cpu);
+	event->stat.val    = bswap_64(event->stat.val);
+	event->stat.ena    = bswap_64(event->stat.ena);
+	event->stat.run    = bswap_64(event->stat.run);
+}
+
+static void perf_event__stat_round_swap(union perf_event *event,
+					bool sample_id_all __maybe_unused)
+{
+	event->stat_round.type = bswap_64(event->stat_round.type);
+	event->stat_round.time = bswap_64(event->stat_round.time);
+}
+
 typedef void (*perf_event__swap_op)(union perf_event *event,
 				    bool sample_id_all);
 
@@ -643,6 +814,12 @@ static perf_event__swap_op perf_event__swap_ops[] = {
 	[PERF_RECORD_AUXTRACE_INFO]	  = perf_event__auxtrace_info_swap,
 	[PERF_RECORD_AUXTRACE]		  = perf_event__auxtrace_swap,
 	[PERF_RECORD_AUXTRACE_ERROR]	  = perf_event__auxtrace_error_swap,
+	[PERF_RECORD_THREAD_MAP]	  = perf_event__thread_map_swap,
+	[PERF_RECORD_CPU_MAP]		  = perf_event__cpu_map_swap,
+	[PERF_RECORD_STAT_CONFIG]	  = perf_event__stat_config_swap,
+	[PERF_RECORD_STAT]		  = perf_event__stat_swap,
+	[PERF_RECORD_STAT_ROUND]	  = perf_event__stat_round_swap,
+	[PERF_RECORD_EVENT_UPDATE]	  = perf_event__event_update_swap,
 	[PERF_RECORD_HEADER_MAX]	  = NULL,
 };
 
@@ -1154,6 +1331,8 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 			perf_session__set_comm_exec(session);
 		}
 		return err;
+	case PERF_RECORD_EVENT_UPDATE:
+		return tool->event_update(tool, event, &session->evlist);
 	case PERF_RECORD_HEADER_EVENT_TYPE:
 		/*
 		 * Depreceated, but we need to handle it for sake
@@ -1179,6 +1358,16 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 	case PERF_RECORD_AUXTRACE_ERROR:
 		perf_session__auxtrace_error_inc(session, event);
 		return tool->auxtrace_error(tool, event, session);
+	case PERF_RECORD_THREAD_MAP:
+		return tool->thread_map(tool, event, session);
+	case PERF_RECORD_CPU_MAP:
+		return tool->cpu_map(tool, event, session);
+	case PERF_RECORD_STAT_CONFIG:
+		return tool->stat_config(tool, event, session);
+	case PERF_RECORD_STAT:
+		return tool->stat(tool, event, session);
+	case PERF_RECORD_STAT_ROUND:
+		return tool->stat_round(tool, event, session);
 	default:
 		return -EINVAL;
 	}
@@ -1311,17 +1500,20 @@ struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
 	return machine__findnew_thread(&session->machines.host, -1, pid);
 }
 
-struct thread *perf_session__register_idle_thread(struct perf_session *session)
+int perf_session__register_idle_thread(struct perf_session *session)
 {
 	struct thread *thread;
+	int err = 0;
 
 	thread = machine__findnew_thread(&session->machines.host, 0, 0);
 	if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
 		pr_err("problem inserting idle task.\n");
-		thread = NULL;
+		err = -1;
 	}
 
-	return thread;
+	/* machine__findnew_thread() got the thread, so put it */
+	thread__put(thread);
+	return err;
 }
 
 static void perf_session__warn_about_errors(const struct perf_session *session)
@@ -1676,7 +1868,7 @@ int perf_session__process_events(struct perf_session *session)
 	u64 size = perf_data_file__size(session->file);
 	int err;
 
-	if (perf_session__register_idle_thread(session) == NULL)
+	if (perf_session__register_idle_thread(session) < 0)
 		return -ENOMEM;
 
 	if (!perf_data_file__is_pipe(session->file))
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 3e900c0efc73..5f792e35d4c1 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -89,7 +89,7 @@ struct machine *perf_session__findnew_machine(struct perf_session *session, pid_
 }
 
 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
-struct thread *perf_session__register_idle_thread(struct perf_session *session);
+int perf_session__register_idle_thread(struct perf_session *session);
 
 size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
 
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 2d8ccd4d9e1b..ec722346e6ff 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -4,6 +4,8 @@
 #include "comm.h"
 #include "symbol.h"
 #include "evsel.h"
+#include "evlist.h"
+#include <traceevent/event-parse.h>
 
 regex_t		parent_regex;
 const char	default_parent_pattern[] = "^sys_|^do_page_fault";
@@ -13,6 +15,7 @@ const char	default_branch_sort_order[] = "comm,dso_from,symbol_from,symbol_to,cy
 const char	default_mem_sort_order[] = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked";
 const char	default_top_sort_order[] = "dso,symbol";
 const char	default_diff_sort_order[] = "dso,symbol";
+const char	default_tracepoint_sort_order[] = "trace";
 const char	*sort_order;
 const char	*field_order;
 regex_t		ignore_callees_regex;
@@ -443,6 +446,70 @@ struct sort_entry sort_socket = {
 	.se_width_idx	= HISTC_SOCKET,
 };
 
+/* --sort trace */
+
+static char *get_trace_output(struct hist_entry *he)
+{
+	struct trace_seq seq;
+	struct perf_evsel *evsel;
+	struct pevent_record rec = {
+		.data = he->raw_data,
+		.size = he->raw_size,
+	};
+
+	evsel = hists_to_evsel(he->hists);
+
+	trace_seq_init(&seq);
+	if (symbol_conf.raw_trace) {
+		pevent_print_fields(&seq, he->raw_data, he->raw_size,
+				    evsel->tp_format);
+	} else {
+		pevent_event_info(&seq, evsel->tp_format, &rec);
+	}
+	return seq.buffer;
+}
+
+static int64_t
+sort__trace_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+	struct perf_evsel *evsel;
+
+	evsel = hists_to_evsel(left->hists);
+	if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+		return 0;
+
+	if (left->trace_output == NULL)
+		left->trace_output = get_trace_output(left);
+	if (right->trace_output == NULL)
+		right->trace_output = get_trace_output(right);
+
+	hists__new_col_len(left->hists, HISTC_TRACE, strlen(left->trace_output));
+	hists__new_col_len(right->hists, HISTC_TRACE, strlen(right->trace_output));
+
+	return strcmp(right->trace_output, left->trace_output);
+}
+
+static int hist_entry__trace_snprintf(struct hist_entry *he, char *bf,
+				    size_t size, unsigned int width)
+{
+	struct perf_evsel *evsel;
+
+	evsel = hists_to_evsel(he->hists);
+	if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+		return scnprintf(bf, size, "%-*.*s", width, width, "N/A");
+
+	if (he->trace_output == NULL)
+		he->trace_output = get_trace_output(he);
+	return repsep_snprintf(bf, size, "%-*.*s", width, width, he->trace_output);
+}
+
+struct sort_entry sort_trace = {
+	.se_header      = "Trace output",
+	.se_cmp	        = sort__trace_cmp,
+	.se_snprintf    = hist_entry__trace_snprintf,
+	.se_width_idx	= HISTC_TRACE,
+};
+
 /* sort keys for branch stacks */
 
 static int64_t
@@ -1312,6 +1379,7 @@ static struct sort_dimension common_sort_dimensions[] = {
 	DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
 	DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
 	DIM(SORT_TRANSACTION, "transaction", sort_transaction),
+	DIM(SORT_TRACE, "trace", sort_trace),
 };
 
 #undef DIM
@@ -1529,6 +1597,455 @@ static int __sort_dimension__add_hpp_output(struct sort_dimension *sd)
 	return 0;
 }
 
+struct hpp_dynamic_entry {
+	struct perf_hpp_fmt hpp;
+	struct perf_evsel *evsel;
+	struct format_field *field;
+	unsigned dynamic_len;
+	bool raw_trace;
+};
+
+static int hde_width(struct hpp_dynamic_entry *hde)
+{
+	if (!hde->hpp.len) {
+		int len = hde->dynamic_len;
+		int namelen = strlen(hde->field->name);
+		int fieldlen = hde->field->size;
+
+		if (namelen > len)
+			len = namelen;
+
+		if (!(hde->field->flags & FIELD_IS_STRING)) {
+			/* length for print hex numbers */
+			fieldlen = hde->field->size * 2 + 2;
+		}
+		if (fieldlen > len)
+			len = fieldlen;
+
+		hde->hpp.len = len;
+	}
+	return hde->hpp.len;
+}
+
+static void update_dynamic_len(struct hpp_dynamic_entry *hde,
+			       struct hist_entry *he)
+{
+	char *str, *pos;
+	struct format_field *field = hde->field;
+	size_t namelen;
+	bool last = false;
+
+	if (hde->raw_trace)
+		return;
+
+	/* parse pretty print result and update max length */
+	if (!he->trace_output)
+		he->trace_output = get_trace_output(he);
+
+	namelen = strlen(field->name);
+	str = he->trace_output;
+
+	while (str) {
+		pos = strchr(str, ' ');
+		if (pos == NULL) {
+			last = true;
+			pos = str + strlen(str);
+		}
+
+		if (!strncmp(str, field->name, namelen)) {
+			size_t len;
+
+			str += namelen + 1;
+			len = pos - str;
+
+			if (len > hde->dynamic_len)
+				hde->dynamic_len = len;
+			break;
+		}
+
+		if (last)
+			str = NULL;
+		else
+			str = pos + 1;
+	}
+}
+
+static int __sort__hde_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+			      struct perf_evsel *evsel __maybe_unused)
+{
+	struct hpp_dynamic_entry *hde;
+	size_t len = fmt->user_len;
+
+	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
+
+	if (!len)
+		len = hde_width(hde);
+
+	return scnprintf(hpp->buf, hpp->size, "%*.*s", len, len, hde->field->name);
+}
+
+static int __sort__hde_width(struct perf_hpp_fmt *fmt,
+			     struct perf_hpp *hpp __maybe_unused,
+			     struct perf_evsel *evsel __maybe_unused)
+{
+	struct hpp_dynamic_entry *hde;
+	size_t len = fmt->user_len;
+
+	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
+
+	if (!len)
+		len = hde_width(hde);
+
+	return len;
+}
+
+bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists)
+{
+	struct hpp_dynamic_entry *hde;
+
+	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
+
+	return hists_to_evsel(hists) == hde->evsel;
+}
+
+static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+			     struct hist_entry *he)
+{
+	struct hpp_dynamic_entry *hde;
+	size_t len = fmt->user_len;
+	char *str, *pos;
+	struct format_field *field;
+	size_t namelen;
+	bool last = false;
+	int ret;
+
+	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
+
+	if (!len)
+		len = hde_width(hde);
+
+	if (hde->raw_trace)
+		goto raw_field;
+
+	field = hde->field;
+	namelen = strlen(field->name);
+	str = he->trace_output;
+
+	while (str) {
+		pos = strchr(str, ' ');
+		if (pos == NULL) {
+			last = true;
+			pos = str + strlen(str);
+		}
+
+		if (!strncmp(str, field->name, namelen)) {
+			str += namelen + 1;
+			str = strndup(str, pos - str);
+
+			if (str == NULL)
+				return scnprintf(hpp->buf, hpp->size,
+						 "%*.*s", len, len, "ERROR");
+			break;
+		}
+
+		if (last)
+			str = NULL;
+		else
+			str = pos + 1;
+	}
+
+	if (str == NULL) {
+		struct trace_seq seq;
+raw_field:
+		trace_seq_init(&seq);
+		pevent_print_field(&seq, he->raw_data, hde->field);
+		str = seq.buffer;
+	}
+
+	ret = scnprintf(hpp->buf, hpp->size, "%*.*s", len, len, str);
+	free(str);
+	return ret;
+}
+
+static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt,
+			       struct hist_entry *a, struct hist_entry *b)
+{
+	struct hpp_dynamic_entry *hde;
+	struct format_field *field;
+	unsigned offset, size;
+
+	hde = container_of(fmt, struct hpp_dynamic_entry, hpp);
+
+	field = hde->field;
+	if (field->flags & FIELD_IS_DYNAMIC) {
+		unsigned long long dyn;
+
+		pevent_read_number_field(field, a->raw_data, &dyn);
+		offset = dyn & 0xffff;
+		size = (dyn >> 16) & 0xffff;
+
+		/* record max width for output */
+		if (size > hde->dynamic_len)
+			hde->dynamic_len = size;
+	} else {
+		offset = field->offset;
+		size = field->size;
+
+		update_dynamic_len(hde, a);
+		update_dynamic_len(hde, b);
+	}
+
+	return memcmp(a->raw_data + offset, b->raw_data + offset, size);
+}
+
+bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *fmt)
+{
+	return fmt->cmp == __sort__hde_cmp;
+}
+
+static struct hpp_dynamic_entry *
+__alloc_dynamic_entry(struct perf_evsel *evsel, struct format_field *field)
+{
+	struct hpp_dynamic_entry *hde;
+
+	hde = malloc(sizeof(*hde));
+	if (hde == NULL) {
+		pr_debug("Memory allocation failed\n");
+		return NULL;
+	}
+
+	hde->evsel = evsel;
+	hde->field = field;
+	hde->dynamic_len = 0;
+
+	hde->hpp.name = field->name;
+	hde->hpp.header = __sort__hde_header;
+	hde->hpp.width  = __sort__hde_width;
+	hde->hpp.entry  = __sort__hde_entry;
+	hde->hpp.color  = NULL;
+
+	hde->hpp.cmp = __sort__hde_cmp;
+	hde->hpp.collapse = __sort__hde_cmp;
+	hde->hpp.sort = __sort__hde_cmp;
+
+	INIT_LIST_HEAD(&hde->hpp.list);
+	INIT_LIST_HEAD(&hde->hpp.sort_list);
+	hde->hpp.elide = false;
+	hde->hpp.len = 0;
+	hde->hpp.user_len = 0;
+
+	return hde;
+}
+
+static int parse_field_name(char *str, char **event, char **field, char **opt)
+{
+	char *event_name, *field_name, *opt_name;
+
+	event_name = str;
+	field_name = strchr(str, '.');
+
+	if (field_name) {
+		*field_name++ = '\0';
+	} else {
+		event_name = NULL;
+		field_name = str;
+	}
+
+	opt_name = strchr(field_name, '/');
+	if (opt_name)
+		*opt_name++ = '\0';
+
+	*event = event_name;
+	*field = field_name;
+	*opt   = opt_name;
+
+	return 0;
+}
+
+/* find match evsel using a given event name.  The event name can be:
+ *   1. '%' + event index (e.g. '%1' for first event)
+ *   2. full event name (e.g. sched:sched_switch)
+ *   3. partial event name (should not contain ':')
+ */
+static struct perf_evsel *find_evsel(struct perf_evlist *evlist, char *event_name)
+{
+	struct perf_evsel *evsel = NULL;
+	struct perf_evsel *pos;
+	bool full_name;
+
+	/* case 1 */
+	if (event_name[0] == '%') {
+		int nr = strtol(event_name+1, NULL, 0);
+
+		if (nr > evlist->nr_entries)
+			return NULL;
+
+		evsel = perf_evlist__first(evlist);
+		while (--nr > 0)
+			evsel = perf_evsel__next(evsel);
+
+		return evsel;
+	}
+
+	full_name = !!strchr(event_name, ':');
+	evlist__for_each(evlist, pos) {
+		/* case 2 */
+		if (full_name && !strcmp(pos->name, event_name))
+			return pos;
+		/* case 3 */
+		if (!full_name && strstr(pos->name, event_name)) {
+			if (evsel) {
+				pr_debug("'%s' event is ambiguous: it can be %s or %s\n",
+					 event_name, evsel->name, pos->name);
+				return NULL;
+			}
+			evsel = pos;
+		}
+	}
+
+	return evsel;
+}
+
+static int __dynamic_dimension__add(struct perf_evsel *evsel,
+				    struct format_field *field,
+				    bool raw_trace)
+{
+	struct hpp_dynamic_entry *hde;
+
+	hde = __alloc_dynamic_entry(evsel, field);
+	if (hde == NULL)
+		return -ENOMEM;
+
+	hde->raw_trace = raw_trace;
+
+	perf_hpp__register_sort_field(&hde->hpp);
+	return 0;
+}
+
+static int add_evsel_fields(struct perf_evsel *evsel, bool raw_trace)
+{
+	int ret;
+	struct format_field *field;
+
+	field = evsel->tp_format->format.fields;
+	while (field) {
+		ret = __dynamic_dimension__add(evsel, field, raw_trace);
+		if (ret < 0)
+			return ret;
+
+		field = field->next;
+	}
+	return 0;
+}
+
+static int add_all_dynamic_fields(struct perf_evlist *evlist, bool raw_trace)
+{
+	int ret;
+	struct perf_evsel *evsel;
+
+	evlist__for_each(evlist, evsel) {
+		if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+			continue;
+
+		ret = add_evsel_fields(evsel, raw_trace);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+static int add_all_matching_fields(struct perf_evlist *evlist,
+				   char *field_name, bool raw_trace)
+{
+	int ret = -ESRCH;
+	struct perf_evsel *evsel;
+	struct format_field *field;
+
+	evlist__for_each(evlist, evsel) {
+		if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+			continue;
+
+		field = pevent_find_any_field(evsel->tp_format, field_name);
+		if (field == NULL)
+			continue;
+
+		ret = __dynamic_dimension__add(evsel, field, raw_trace);
+		if (ret < 0)
+			break;
+	}
+	return ret;
+}
+
+static int add_dynamic_entry(struct perf_evlist *evlist, const char *tok)
+{
+	char *str, *event_name, *field_name, *opt_name;
+	struct perf_evsel *evsel;
+	struct format_field *field;
+	bool raw_trace = symbol_conf.raw_trace;
+	int ret = 0;
+
+	if (evlist == NULL)
+		return -ENOENT;
+
+	str = strdup(tok);
+	if (str == NULL)
+		return -ENOMEM;
+
+	if (parse_field_name(str, &event_name, &field_name, &opt_name) < 0) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (opt_name) {
+		if (strcmp(opt_name, "raw")) {
+			pr_debug("unsupported field option %s\n", opt_name);
+			ret = -EINVAL;
+			goto out;
+		}
+		raw_trace = true;
+	}
+
+	if (!strcmp(field_name, "trace_fields")) {
+		ret = add_all_dynamic_fields(evlist, raw_trace);
+		goto out;
+	}
+
+	if (event_name == NULL) {
+		ret = add_all_matching_fields(evlist, field_name, raw_trace);
+		goto out;
+	}
+
+	evsel = find_evsel(evlist, event_name);
+	if (evsel == NULL) {
+		pr_debug("Cannot find event: %s\n", event_name);
+		ret = -ENOENT;
+		goto out;
+	}
+
+	if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
+		pr_debug("%s is not a tracepoint event\n", event_name);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!strcmp(field_name, "*")) {
+		ret = add_evsel_fields(evsel, raw_trace);
+	} else {
+		field = pevent_find_any_field(evsel->tp_format, field_name);
+		if (field == NULL) {
+			pr_debug("Cannot find event field for %s.%s\n",
+				 event_name, field_name);
+			return -ENOENT;
+		}
+
+		ret = __dynamic_dimension__add(evsel, field, raw_trace);
+	}
+
+out:
+	free(str);
+	return ret;
+}
+
 static int __sort_dimension__add(struct sort_dimension *sd)
 {
 	if (sd->taken)
@@ -1583,7 +2100,8 @@ int hpp_dimension__add_output(unsigned col)
 	return __hpp_dimension__add_output(&hpp_sort_dimensions[col]);
 }
 
-int sort_dimension__add(const char *tok)
+static int sort_dimension__add(const char *tok,
+			       struct perf_evlist *evlist __maybe_unused)
 {
 	unsigned int i;
 
@@ -1664,10 +2182,13 @@ int sort_dimension__add(const char *tok)
 		return 0;
 	}
 
+	if (!add_dynamic_entry(evlist, tok))
+		return 0;
+
 	return -ESRCH;
 }
 
-static const char *get_default_sort_order(void)
+static const char *get_default_sort_order(struct perf_evlist *evlist)
 {
 	const char *default_sort_orders[] = {
 		default_sort_order,
@@ -1675,14 +2196,33 @@ static const char *get_default_sort_order(void)
 		default_mem_sort_order,
 		default_top_sort_order,
 		default_diff_sort_order,
+		default_tracepoint_sort_order,
 	};
+	bool use_trace = true;
+	struct perf_evsel *evsel;
 
 	BUG_ON(sort__mode >= ARRAY_SIZE(default_sort_orders));
 
+	if (evlist == NULL)
+		goto out_no_evlist;
+
+	evlist__for_each(evlist, evsel) {
+		if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
+			use_trace = false;
+			break;
+		}
+	}
+
+	if (use_trace) {
+		sort__mode = SORT_MODE__TRACEPOINT;
+		if (symbol_conf.raw_trace)
+			return "trace_fields";
+	}
+out_no_evlist:
 	return default_sort_orders[sort__mode];
 }
 
-static int setup_sort_order(void)
+static int setup_sort_order(struct perf_evlist *evlist)
 {
 	char *new_sort_order;
 
@@ -1703,7 +2243,7 @@ static int setup_sort_order(void)
 	 * because it's checked over the rest of the code.
 	 */
 	if (asprintf(&new_sort_order, "%s,%s",
-		     get_default_sort_order(), sort_order + 1) < 0) {
+		     get_default_sort_order(evlist), sort_order + 1) < 0) {
 		error("Not enough memory to set up --sort");
 		return -ENOMEM;
 	}
@@ -1712,13 +2252,41 @@ static int setup_sort_order(void)
 	return 0;
 }
 
-static int __setup_sorting(void)
+/*
+ * Adds 'pre,' prefix into 'str' is 'pre' is
+ * not already part of 'str'.
+ */
+static char *prefix_if_not_in(const char *pre, char *str)
+{
+	char *n;
+
+	if (!str || strstr(str, pre))
+		return str;
+
+	if (asprintf(&n, "%s,%s", pre, str) < 0)
+		return NULL;
+
+	free(str);
+	return n;
+}
+
+static char *setup_overhead(char *keys)
+{
+	keys = prefix_if_not_in("overhead", keys);
+
+	if (symbol_conf.cumulate_callchain)
+		keys = prefix_if_not_in("overhead_children", keys);
+
+	return keys;
+}
+
+static int __setup_sorting(struct perf_evlist *evlist)
 {
 	char *tmp, *tok, *str;
 	const char *sort_keys;
 	int ret = 0;
 
-	ret = setup_sort_order();
+	ret = setup_sort_order(evlist);
 	if (ret)
 		return ret;
 
@@ -1732,7 +2300,7 @@ static int __setup_sorting(void)
 			return 0;
 		}
 
-		sort_keys = get_default_sort_order();
+		sort_keys = get_default_sort_order(evlist);
 	}
 
 	str = strdup(sort_keys);
@@ -1741,9 +2309,20 @@ static int __setup_sorting(void)
 		return -ENOMEM;
 	}
 
+	/*
+	 * Prepend overhead fields for backward compatibility.
+	 */
+	if (!is_strict_order(field_order)) {
+		str = setup_overhead(str);
+		if (str == NULL) {
+			error("Not enough memory to setup overhead keys");
+			return -ENOMEM;
+		}
+	}
+
 	for (tok = strtok_r(str, ", ", &tmp);
 			tok; tok = strtok_r(NULL, ", ", &tmp)) {
-		ret = sort_dimension__add(tok);
+		ret = sort_dimension__add(tok, evlist);
 		if (ret == -EINVAL) {
 			error("Invalid --sort key: `%s'", tok);
 			break;
@@ -1954,16 +2533,16 @@ out:
 	return ret;
 }
 
-int setup_sorting(void)
+int setup_sorting(struct perf_evlist *evlist)
 {
 	int err;
 
-	err = __setup_sorting();
+	err = __setup_sorting(evlist);
 	if (err < 0)
 		return err;
 
 	if (parent_pattern != default_parent_pattern) {
-		err = sort_dimension__add("parent");
+		err = sort_dimension__add("parent", evlist);
 		if (err < 0)
 			return err;
 	}
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 31228851e397..687bbb124428 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -18,7 +18,7 @@
 #include "debug.h"
 #include "header.h"
 
-#include "parse-options.h"
+#include <subcmd/parse-options.h>
 #include "parse-events.h"
 #include "hist.h"
 #include "thread.h"
@@ -122,6 +122,9 @@ struct hist_entry {
 	struct branch_info	*branch_info;
 	struct hists		*hists;
 	struct mem_info		*mem_info;
+	void			*raw_data;
+	u32			raw_size;
+	void			*trace_output;
 	struct callchain_root	callchain[0]; /* must be last member */
 };
 
@@ -164,6 +167,7 @@ enum sort_mode {
 	SORT_MODE__MEMORY,
 	SORT_MODE__TOP,
 	SORT_MODE__DIFF,
+	SORT_MODE__TRACEPOINT,
 };
 
 enum sort_type {
@@ -180,6 +184,7 @@ enum sort_type {
 	SORT_LOCAL_WEIGHT,
 	SORT_GLOBAL_WEIGHT,
 	SORT_TRANSACTION,
+	SORT_TRACE,
 
 	/* branch stack specific sort keys */
 	__SORT_BRANCH_STACK,
@@ -209,8 +214,6 @@ enum sort_type {
  */
 
 struct sort_entry {
-	struct list_head list;
-
 	const char *se_header;
 
 	int64_t (*se_cmp)(struct hist_entry *, struct hist_entry *);
@@ -224,10 +227,11 @@ struct sort_entry {
 extern struct sort_entry sort_thread;
 extern struct list_head hist_entry__sort_list;
 
-int setup_sorting(void);
+struct perf_evlist;
+struct pevent;
+int setup_sorting(struct perf_evlist *evlist);
 int setup_output_field(void);
 void reset_output_field(void);
-extern int sort_dimension__add(const char *);
 void sort__setup_elide(FILE *fp);
 void perf_hpp__set_elide(int idx, bool elide);
 
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 2d9d8306dbd3..2f901d15e063 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -341,3 +341,65 @@ int perf_stat_process_counter(struct perf_stat_config *config,
 
 	return 0;
 }
+
+int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused,
+				   union perf_event *event,
+				   struct perf_session *session)
+{
+	struct perf_counts_values count;
+	struct stat_event *st = &event->stat;
+	struct perf_evsel *counter;
+
+	count.val = st->val;
+	count.ena = st->ena;
+	count.run = st->run;
+
+	counter = perf_evlist__id2evsel(session->evlist, st->id);
+	if (!counter) {
+		pr_err("Failed to resolve counter for stat event.\n");
+		return -EINVAL;
+	}
+
+	*perf_counts(counter->counts, st->cpu, st->thread) = count;
+	counter->supported = true;
+	return 0;
+}
+
+size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp)
+{
+	struct stat_event *st = (struct stat_event *) event;
+	size_t ret;
+
+	ret  = fprintf(fp, "\n... id %" PRIu64 ", cpu %d, thread %d\n",
+		       st->id, st->cpu, st->thread);
+	ret += fprintf(fp, "... value %" PRIu64 ", enabled %" PRIu64 ", running %" PRIu64 "\n",
+		       st->val, st->ena, st->run);
+
+	return ret;
+}
+
+size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp)
+{
+	struct stat_round_event *rd = (struct stat_round_event *)event;
+	size_t ret;
+
+	ret = fprintf(fp, "\n... time %" PRIu64 ", type %s\n", rd->time,
+		      rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL");
+
+	return ret;
+}
+
+size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp)
+{
+	struct perf_stat_config sc;
+	size_t ret;
+
+	perf_event__read_stat_config(&sc, &event->stat_config);
+
+	ret  = fprintf(fp, "\n");
+	ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode);
+	ret += fprintf(fp, "... scale     %d\n", sc.scale);
+	ret += fprintf(fp, "... interval  %u\n", sc.interval);
+
+	return ret;
+}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index da1d11c4f8c1..086f4e128d63 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -90,4 +90,14 @@ void perf_evlist__reset_stats(struct perf_evlist *evlist);
 
 int perf_stat_process_counter(struct perf_stat_config *config,
 			      struct perf_evsel *counter);
+struct perf_tool;
+union perf_event;
+struct perf_session;
+int perf_event__process_stat_event(struct perf_tool *tool,
+				   union perf_event *event,
+				   struct perf_session *session);
+
+size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 #endif
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index fc8781de62db..7f7e072be746 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -342,22 +342,6 @@ char *rtrim(char *s)
 	return s;
 }
 
-/**
- * memdup - duplicate region of memory
- * @src: memory region to duplicate
- * @len: memory region length
- */
-void *memdup(const void *src, size_t len)
-{
-	void *p;
-
-	p = malloc(len);
-	if (p)
-		memcpy(p, src, len);
-
-	return p;
-}
-
 char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints)
 {
 	/*
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 475d88d0a1c9..562b8ebeae5b 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1026,8 +1026,8 @@ int dso__load_sym(struct dso *dso, struct map *map,
 				curr_dso->long_name_len = dso->long_name_len;
 				curr_map = map__new2(start, curr_dso,
 						     map->type);
+				dso__put(curr_dso);
 				if (curr_map == NULL) {
-					dso__put(curr_dso);
 					goto out_elf_end;
 				}
 				if (adjust_kernel_syms) {
@@ -1042,7 +1042,14 @@ int dso__load_sym(struct dso *dso, struct map *map,
 				}
 				curr_dso->symtab_type = dso->symtab_type;
 				map_groups__insert(kmaps, curr_map);
+				/*
+				 * Add it before we drop the referece to curr_map,
+				 * i.e. while we still are sure to have a reference
+				 * to this DSO via curr_map->dso.
+				 */
 				dsos__add(&map->groups->machine->dsos, curr_dso);
+				/* kmaps already got it */
+				map__put(curr_map);
 				dso__set_loaded(curr_dso, map->type);
 			} else
 				curr_dso = curr_map->dso;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index cd08027a6d2c..3b2de6eb3376 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -39,6 +39,7 @@ struct symbol_conf symbol_conf = {
 	.cumulate_callchain	= true,
 	.show_hist_headers	= true,
 	.symfs			= "",
+	.event_group		= true,
 };
 
 static enum dso_binary_type binary_type_symtab[] = {
@@ -1860,24 +1861,44 @@ static void vmlinux_path__exit(void)
 	zfree(&vmlinux_path);
 }
 
+static const char * const vmlinux_paths[] = {
+	"vmlinux",
+	"/boot/vmlinux"
+};
+
+static const char * const vmlinux_paths_upd[] = {
+	"/boot/vmlinux-%s",
+	"/usr/lib/debug/boot/vmlinux-%s",
+	"/lib/modules/%s/build/vmlinux",
+	"/usr/lib/debug/lib/modules/%s/vmlinux",
+	"/usr/lib/debug/boot/vmlinux-%s.debug"
+};
+
+static int vmlinux_path__add(const char *new_entry)
+{
+	vmlinux_path[vmlinux_path__nr_entries] = strdup(new_entry);
+	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
+		return -1;
+	++vmlinux_path__nr_entries;
+
+	return 0;
+}
+
 static int vmlinux_path__init(struct perf_env *env)
 {
 	struct utsname uts;
 	char bf[PATH_MAX];
 	char *kernel_version;
+	unsigned int i;
 
-	vmlinux_path = malloc(sizeof(char *) * 6);
+	vmlinux_path = malloc(sizeof(char *) * (ARRAY_SIZE(vmlinux_paths) +
+			      ARRAY_SIZE(vmlinux_paths_upd)));
 	if (vmlinux_path == NULL)
 		return -1;
 
-	vmlinux_path[vmlinux_path__nr_entries] = strdup("vmlinux");
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-	++vmlinux_path__nr_entries;
-	vmlinux_path[vmlinux_path__nr_entries] = strdup("/boot/vmlinux");
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-	++vmlinux_path__nr_entries;
+	for (i = 0; i < ARRAY_SIZE(vmlinux_paths); i++)
+		if (vmlinux_path__add(vmlinux_paths[i]) < 0)
+			goto out_fail;
 
 	/* only try kernel version if no symfs was given */
 	if (symbol_conf.symfs[0] != 0)
@@ -1892,28 +1913,11 @@ static int vmlinux_path__init(struct perf_env *env)
 		kernel_version = uts.release;
 	}
 
-	snprintf(bf, sizeof(bf), "/boot/vmlinux-%s", kernel_version);
-	vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-	++vmlinux_path__nr_entries;
-	snprintf(bf, sizeof(bf), "/usr/lib/debug/boot/vmlinux-%s",
-		 kernel_version);
-	vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-        ++vmlinux_path__nr_entries;
-	snprintf(bf, sizeof(bf), "/lib/modules/%s/build/vmlinux", kernel_version);
-	vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-	++vmlinux_path__nr_entries;
-	snprintf(bf, sizeof(bf), "/usr/lib/debug/lib/modules/%s/vmlinux",
-		 kernel_version);
-	vmlinux_path[vmlinux_path__nr_entries] = strdup(bf);
-	if (vmlinux_path[vmlinux_path__nr_entries] == NULL)
-		goto out_fail;
-	++vmlinux_path__nr_entries;
+	for (i = 0; i < ARRAY_SIZE(vmlinux_paths_upd); i++) {
+		snprintf(bf, sizeof(bf), vmlinux_paths_upd[i], kernel_version);
+		if (vmlinux_path__add(bf) < 0)
+			goto out_fail;
+	}
 
 	return 0;
 
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index dcd786e364f2..ccd1caa40e11 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -108,7 +108,9 @@ struct symbol_conf {
 			show_hist_headers,
 			branch_callstack,
 			has_filter,
-			show_ref_callgraph;
+			show_ref_callgraph,
+			hide_unresolved,
+			raw_trace;
 	const char	*vmlinux_name,
 			*kallsyms_name,
 			*source_prefix,
diff --git a/tools/perf/util/term.c b/tools/perf/util/term.c
new file mode 100644
index 000000000000..90b47d8aa19c
--- /dev/null
+++ b/tools/perf/util/term.c
@@ -0,0 +1,35 @@
+#include "util.h"
+
+void get_term_dimensions(struct winsize *ws)
+{
+	char *s = getenv("LINES");
+
+	if (s != NULL) {
+		ws->ws_row = atoi(s);
+		s = getenv("COLUMNS");
+		if (s != NULL) {
+			ws->ws_col = atoi(s);
+			if (ws->ws_row && ws->ws_col)
+				return;
+		}
+	}
+#ifdef TIOCGWINSZ
+	if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
+	    ws->ws_row && ws->ws_col)
+		return;
+#endif
+	ws->ws_row = 25;
+	ws->ws_col = 80;
+}
+
+void set_term_quiet_input(struct termios *old)
+{
+	struct termios tc;
+
+	tcgetattr(0, old);
+	tc = *old;
+	tc.c_lflag &= ~(ICANON | ECHO);
+	tc.c_cc[VMIN] = 0;
+	tc.c_cc[VTIME] = 0;
+	tcsetattr(0, TCSANOW, &tc);
+}
diff --git a/tools/perf/util/term.h b/tools/perf/util/term.h
new file mode 100644
index 000000000000..2c06a61846a1
--- /dev/null
+++ b/tools/perf/util/term.h
@@ -0,0 +1,10 @@
+#ifndef __PERF_TERM_H
+#define __PERF_TERM_H
+
+struct termios;
+struct winsize;
+
+void get_term_dimensions(struct winsize *ws);
+void set_term_quiet_input(struct termios *old);
+
+#endif /* __PERF_TERM_H */
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 0a9ae8014729..dfd00c6dad6e 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -19,8 +19,10 @@ int thread__init_map_groups(struct thread *thread, struct machine *machine)
 		thread->mg = map_groups__new(machine);
 	} else {
 		leader = __machine__findnew_thread(machine, pid, pid);
-		if (leader)
+		if (leader) {
 			thread->mg = map_groups__get(leader->mg);
+			thread__put(leader);
+		}
 	}
 
 	return thread->mg ? 0 : -1;
@@ -53,7 +55,7 @@ struct thread *thread__new(pid_t pid, pid_t tid)
 			goto err_thread;
 
 		list_add(&comm->list, &thread->comm_list);
-		atomic_set(&thread->refcnt, 0);
+		atomic_set(&thread->refcnt, 1);
 		RB_CLEAR_NODE(&thread->rb_node);
 	}
 
@@ -95,6 +97,10 @@ struct thread *thread__get(struct thread *thread)
 void thread__put(struct thread *thread)
 {
 	if (thread && atomic_dec_and_test(&thread->refcnt)) {
+		/*
+		 * Remove it from the dead_threads list, as last reference
+		 * is gone.
+		 */
 		list_del_init(&thread->node);
 		thread__delete(thread);
 	}
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 6ec3c5ca438f..08afc6909953 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -13,6 +13,7 @@
 #include "thread_map.h"
 #include "util.h"
 #include "debug.h"
+#include "event.h"
 
 /* Skip "." and ".." directories */
 static int filter(const struct dirent *dir)
@@ -304,6 +305,7 @@ out:
 
 out_free_threads:
 	zfree(&threads);
+	strlist__delete(slist);
 	goto out;
 }
 
@@ -408,3 +410,29 @@ void thread_map__read_comms(struct thread_map *threads)
 	for (i = 0; i < threads->nr; ++i)
 		comm_init(threads, i);
 }
+
+static void thread_map__copy_event(struct thread_map *threads,
+				   struct thread_map_event *event)
+{
+	unsigned i;
+
+	threads->nr = (int) event->nr;
+
+	for (i = 0; i < event->nr; i++) {
+		thread_map__set_pid(threads, i, (pid_t) event->entries[i].pid);
+		threads->map[i].comm = strndup(event->entries[i].comm, 16);
+	}
+
+	atomic_set(&threads->refcnt, 1);
+}
+
+struct thread_map *thread_map__new_event(struct thread_map_event *event)
+{
+	struct thread_map *threads;
+
+	threads = thread_map__alloc(event->nr);
+	if (threads)
+		thread_map__copy_event(threads, event);
+
+	return threads;
+}
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index af679d8a50f8..85e4c7c4fbde 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -16,11 +16,14 @@ struct thread_map {
 	struct thread_map_data map[];
 };
 
+struct thread_map_event;
+
 struct thread_map *thread_map__new_dummy(void);
 struct thread_map *thread_map__new_by_pid(pid_t pid);
 struct thread_map *thread_map__new_by_tid(pid_t tid);
 struct thread_map *thread_map__new_by_uid(uid_t uid);
 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
+struct thread_map *thread_map__new_event(struct thread_map_event *event);
 
 struct thread_map *thread_map__get(struct thread_map *map);
 void thread_map__put(struct thread_map *map);
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index cab8cc24831b..55de4cffcd4e 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -50,12 +50,18 @@ struct perf_tool {
 			throttle,
 			unthrottle;
 	event_attr_op	attr;
+	event_attr_op	event_update;
 	event_op2	tracing_data;
 	event_oe	finished_round;
 	event_op2	build_id,
 			id_index,
 			auxtrace_info,
-			auxtrace_error;
+			auxtrace_error,
+			thread_map,
+			cpu_map,
+			stat_config,
+			stat,
+			stat_round;
 	event_op3	auxtrace;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index b85ee55cca0c..bce5b1dac268 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -65,6 +65,7 @@ int tracing_data_put(struct tracing_data *tdata);
 struct addr_location;
 
 struct perf_session;
+struct perf_stat_config;
 
 struct scripting_ops {
 	const char *name;
@@ -75,6 +76,9 @@ struct scripting_ops {
 			       struct perf_sample *sample,
 			       struct perf_evsel *evsel,
 			       struct addr_location *al);
+	void (*process_stat)(struct perf_stat_config *config,
+			     struct perf_evsel *evsel, u64 tstamp);
+	void (*process_stat_interval)(u64 tstamp);
 	int (*generate_script) (struct pevent *pevent, const char *outfile);
 };
 
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 2dcfe9a7c8d0..cf5e250bc78e 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -11,6 +11,7 @@
 #include <linux/types.h>
 #include "event.h"
 #include "perf_regs.h"
+#include "callchain.h"
 
 static char *debuginfo_path;
 
@@ -52,25 +53,28 @@ static int report_module(u64 ip, struct unwind_info *ui)
 	return __report_module(&al, ip, ui);
 }
 
+/*
+ * Store all entries within entries array,
+ * we will process it after we finish unwind.
+ */
 static int entry(u64 ip, struct unwind_info *ui)
 
 {
-	struct unwind_entry e;
+	struct unwind_entry *e = &ui->entries[ui->idx++];
 	struct addr_location al;
 
 	if (__report_module(&al, ip, ui))
 		return -1;
 
-	e.ip  = ip;
-	e.map = al.map;
-	e.sym = al.sym;
+	e->ip  = ip;
+	e->map = al.map;
+	e->sym = al.sym;
 
 	pr_debug("unwind: %s:ip = 0x%" PRIx64 " (0x%" PRIx64 ")\n",
 		 al.sym ? al.sym->name : "''",
 		 ip,
 		 al.map ? al.map->map_ip(al.map, ip) : (u64) 0);
-
-	return ui->cb(&e, ui->arg);
+	return 0;
 }
 
 static pid_t next_thread(Dwfl *dwfl, void *arg, void **thread_argp)
@@ -92,6 +96,16 @@ static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
 	thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
 			      MAP__FUNCTION, addr, &al);
 	if (!al.map) {
+		/*
+		 * We've seen cases (softice) where DWARF unwinder went
+		 * through non executable mmaps, which we need to lookup
+		 * in MAP__VARIABLE tree.
+		 */
+		thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
+				      MAP__VARIABLE, addr, &al);
+	}
+
+	if (!al.map) {
 		pr_debug("unwind: no map for %lx\n", (unsigned long)addr);
 		return -1;
 	}
@@ -168,7 +182,7 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 			struct perf_sample *data,
 			int max_stack)
 {
-	struct unwind_info ui = {
+	struct unwind_info *ui, ui_buf = {
 		.sample		= data,
 		.thread		= thread,
 		.machine	= thread->mg->machine,
@@ -177,35 +191,54 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 		.max_stack	= max_stack,
 	};
 	Dwarf_Word ip;
-	int err = -EINVAL;
+	int err = -EINVAL, i;
 
 	if (!data->user_regs.regs)
 		return -EINVAL;
 
-	ui.dwfl = dwfl_begin(&offline_callbacks);
-	if (!ui.dwfl)
+	ui = zalloc(sizeof(ui_buf) + sizeof(ui_buf.entries[0]) * max_stack);
+	if (!ui)
+		return -ENOMEM;
+
+	*ui = ui_buf;
+
+	ui->dwfl = dwfl_begin(&offline_callbacks);
+	if (!ui->dwfl)
 		goto out;
 
 	err = perf_reg_value(&ip, &data->user_regs, PERF_REG_IP);
 	if (err)
 		goto out;
 
-	err = report_module(ip, &ui);
+	err = report_module(ip, ui);
 	if (err)
 		goto out;
 
-	if (!dwfl_attach_state(ui.dwfl, EM_NONE, thread->tid, &callbacks, &ui))
+	if (!dwfl_attach_state(ui->dwfl, EM_NONE, thread->tid, &callbacks, ui))
 		goto out;
 
-	err = dwfl_getthread_frames(ui.dwfl, thread->tid, frame_callback, &ui);
+	err = dwfl_getthread_frames(ui->dwfl, thread->tid, frame_callback, ui);
 
-	if (err && !ui.max_stack)
+	if (err && !ui->max_stack)
 		err = 0;
 
+	/*
+	 * Display what we got based on the order setup.
+	 */
+	for (i = 0; i < ui->idx && !err; i++) {
+		int j = i;
+
+		if (callchain_param.order == ORDER_CALLER)
+			j = ui->idx - i - 1;
+
+		err = ui->entries[j].ip ? ui->cb(&ui->entries[j], ui->arg) : 0;
+	}
+
  out:
 	if (err)
 		pr_debug("unwind: failed with '%s'\n", dwfl_errmsg(-1));
 
-	dwfl_end(ui.dwfl);
+	dwfl_end(ui->dwfl);
+	free(ui);
 	return 0;
 }
diff --git a/tools/perf/util/unwind-libdw.h b/tools/perf/util/unwind-libdw.h
index 417a1426f3ad..58328669ed16 100644
--- a/tools/perf/util/unwind-libdw.h
+++ b/tools/perf/util/unwind-libdw.h
@@ -16,6 +16,8 @@ struct unwind_info {
 	unwind_entry_cb_t	cb;
 	void			*arg;
 	int			max_stack;
+	int			idx;
+	struct unwind_entry	entries[];
 };
 
 #endif /* __PERF_UNWIND_LIBDW_H */
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index c83832b555e5..ee7e372297e5 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -319,6 +319,15 @@ static struct map *find_map(unw_word_t ip, struct unwind_info *ui)
 
 	thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
 			      MAP__FUNCTION, ip, &al);
+	if (!al.map) {
+		/*
+		 * We've seen cases (softice) where DWARF unwinder went
+		 * through non executable mmaps, which we need to lookup
+		 * in MAP__VARIABLE tree.
+		 */
+		thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
+				      MAP__VARIABLE, ip, &al);
+	}
 	return al.map;
 }
 
@@ -416,20 +425,19 @@ get_proc_name(unw_addr_space_t __maybe_unused as,
 static int access_dso_mem(struct unwind_info *ui, unw_word_t addr,
 			  unw_word_t *data)
 {
-	struct addr_location al;
+	struct map *map;
 	ssize_t size;
 
-	thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-			      MAP__FUNCTION, addr, &al);
-	if (!al.map) {
+	map = find_map(addr, ui);
+	if (!map) {
 		pr_debug("unwind: no map for %lx\n", (unsigned long)addr);
 		return -1;
 	}
 
-	if (!al.map->dso)
+	if (!map->dso)
 		return -1;
 
-	size = dso__data_read_addr(al.map->dso, al.map, ui->machine,
+	size = dso__data_read_addr(map->dso, map, ui->machine,
 				   addr, (u8 *) data, sizeof(*data));
 
 	return !(size == sizeof(*data));
@@ -614,23 +622,48 @@ void unwind__finish_access(struct thread *thread)
 static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
 		       void *arg, int max_stack)
 {
+	u64 val;
+	unw_word_t ips[max_stack];
 	unw_addr_space_t addr_space;
 	unw_cursor_t c;
-	int ret;
-
-	addr_space = thread__priv(ui->thread);
-	if (addr_space == NULL)
-		return -1;
+	int ret, i = 0;
 
-	ret = unw_init_remote(&c, addr_space, ui);
+	ret = perf_reg_value(&val, &ui->sample->user_regs, PERF_REG_IP);
 	if (ret)
-		display_error(ret);
+		return ret;
 
-	while (!ret && (unw_step(&c) > 0) && max_stack--) {
-		unw_word_t ip;
+	ips[i++] = (unw_word_t) val;
 
-		unw_get_reg(&c, UNW_REG_IP, &ip);
-		ret = ip ? entry(ip, ui->thread, cb, arg) : 0;
+	/*
+	 * If we need more than one entry, do the DWARF
+	 * unwind itself.
+	 */
+	if (max_stack - 1 > 0) {
+		addr_space = thread__priv(ui->thread);
+		if (addr_space == NULL)
+			return -1;
+
+		ret = unw_init_remote(&c, addr_space, ui);
+		if (ret)
+			display_error(ret);
+
+		while (!ret && (unw_step(&c) > 0) && i < max_stack) {
+			unw_get_reg(&c, UNW_REG_IP, &ips[i]);
+			++i;
+		}
+
+		max_stack = i;
+	}
+
+	/*
+	 * Display what we got based on the order setup.
+	 */
+	for (i = 0; i < max_stack && !ret; i++) {
+		int j = i;
+
+		if (callchain_param.order == ORDER_CALLER)
+			j = max_stack - i - 1;
+		ret = ips[j] ? entry(ips[j], ui->thread, cb, arg) : 0;
 	}
 
 	return ret;
@@ -640,24 +673,17 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 			struct thread *thread,
 			struct perf_sample *data, int max_stack)
 {
-	u64 ip;
 	struct unwind_info ui = {
 		.sample       = data,
 		.thread       = thread,
 		.machine      = thread->mg->machine,
 	};
-	int ret;
 
 	if (!data->user_regs.regs)
 		return -EINVAL;
 
-	ret = perf_reg_value(&ip, &data->user_regs, PERF_REG_IP);
-	if (ret)
-		return ret;
-
-	ret = entry(ip, thread, cb, arg);
-	if (ret)
-		return -ENOMEM;
+	if (max_stack <= 0)
+		return -EINVAL;
 
-	return --max_stack > 0 ? get_entries(&ui, cb, arg, max_stack) : 0;
+	return get_entries(&ui, cb, arg, max_stack);
 }
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 47b1e36c7ea0..88b8f8d21f58 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -16,12 +16,15 @@
 #include <linux/kernel.h>
 #include <unistd.h>
 #include "callchain.h"
+#include "strlist.h"
+#include <subcmd/exec-cmd.h>
 
 struct callchain_param	callchain_param = {
 	.mode	= CHAIN_GRAPH_ABS,
 	.min_percent = 0.5,
 	.order  = ORDER_CALLEE,
-	.key	= CCKEY_FUNCTION
+	.key	= CCKEY_FUNCTION,
+	.value	= CCVAL_PERCENT,
 };
 
 /*
@@ -351,41 +354,8 @@ void sighandler_dump_stack(int sig)
 {
 	psignal(sig, "perf");
 	dump_stack();
-	exit(sig);
-}
-
-void get_term_dimensions(struct winsize *ws)
-{
-	char *s = getenv("LINES");
-
-	if (s != NULL) {
-		ws->ws_row = atoi(s);
-		s = getenv("COLUMNS");
-		if (s != NULL) {
-			ws->ws_col = atoi(s);
-			if (ws->ws_row && ws->ws_col)
-				return;
-		}
-	}
-#ifdef TIOCGWINSZ
-	if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
-	    ws->ws_row && ws->ws_col)
-		return;
-#endif
-	ws->ws_row = 25;
-	ws->ws_col = 80;
-}
-
-void set_term_quiet_input(struct termios *old)
-{
-	struct termios tc;
-
-	tcgetattr(0, old);
-	tc = *old;
-	tc.c_lflag &= ~(ICANON | ECHO);
-	tc.c_cc[VMIN] = 0;
-	tc.c_cc[VTIME] = 0;
-	tcsetattr(0, TCSANOW, &tc);
+	signal(sig, SIG_DFL);
+	raise(sig);
 }
 
 int parse_nsec_time(const char *str, u64 *ptime)
@@ -695,3 +665,28 @@ fetch_kernel_version(unsigned int *puint, char *str,
 		*puint = (version << 16) + (patchlevel << 8) + sublevel;
 	return 0;
 }
+
+const char *perf_tip(const char *dirpath)
+{
+	struct strlist *tips;
+	struct str_node *node;
+	char *tip = NULL;
+	struct strlist_config conf = {
+		.dirname = system_path(dirpath) ,
+	};
+
+	tips = strlist__new("tips.txt", &conf);
+	if (tips == NULL || strlist__nr_entries(tips) == 1) {
+		tip = (char *)"Cannot find tips.txt file";
+		goto out;
+	}
+
+	node = strlist__entry(tips, random() % strlist__nr_entries(tips));
+	if (asprintf(&tip, "Tip: %s", node->s) < 0)
+		tip = (char *)"Tip: get more memory! ;-)";
+
+out:
+	strlist__delete(tips);
+
+	return tip;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index dcc659017976..fe915e616f9b 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -53,6 +53,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
+#include <term.h>
 #include <errno.h>
 #include <limits.h>
 #include <sys/param.h>
@@ -150,12 +151,6 @@ extern void set_warning_routine(void (*routine)(const char *err, va_list params)
 extern int prefixcmp(const char *str, const char *prefix);
 extern void set_buildid_dir(const char *dir);
 
-static inline const char *skip_prefix(const char *str, const char *prefix)
-{
-	size_t len = strlen(prefix);
-	return strncmp(str, prefix, len) ? NULL : str + len;
-}
-
 #ifdef __GLIBC_PREREQ
 #if __GLIBC_PREREQ(2, 1)
 #define HAVE_STRCHRNUL
@@ -186,14 +181,6 @@ static inline void *zalloc(size_t size)
 
 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
 
-static inline int has_extension(const char *filename, const char *ext)
-{
-	size_t len = strlen(filename);
-	size_t extlen = strlen(ext);
-
-	return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
-}
-
 /* Sane ctype - no locale, and works with signed chars */
 #undef isascii
 #undef isspace
@@ -282,9 +269,6 @@ void sighandler_dump_stack(int sig);
 extern unsigned int page_size;
 extern int cacheline_size;
 
-void get_term_dimensions(struct winsize *ws);
-void set_term_quiet_input(struct termios *old);
-
 struct parse_tag {
 	char tag;
 	int mult;
@@ -358,4 +342,6 @@ int fetch_kernel_version(unsigned int *puint,
 #define KVER_FMT	"%d.%d.%d"
 #define KVER_PARAM(x)	KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
 
+const char *perf_tip(const char *dirpath);
+
 #endif /* GIT_COMPAT_UTIL_H */
author	Linus Torvalds <torvalds@linux-foundation.org>	2016-01-11 23:39:17 +0100
committer	Linus Torvalds <torvalds@linux-foundation.org>	2016-01-11 23:39:17 +0100
commit	5cb52b5e1654f3f1ed9c32e34456d98559c85aa0 (patch)
tree	737c73d6aef99a17f57c2974f1e2a142a5f1a377 /tools
parent	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/k... (diff)
parent	Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
download	linux-5cb52b5e1654f3f1ed9c32e34456d98559c85aa0.tar.xz linux-5cb52b5e1654f3f1ed9c32e34456d98559c85aa0.zip