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* perf tools: Clean up libelf feature support codeNamhyung Kim2014-11-191-2/+3
| | | | | | | | | | | | | | | | | | | Current EXTLIBS contains -lelf by default and removes it when libelf is not detected. This is little bit confusing since we can now build perf without libelf so there's no need to handle it differently than other libraries. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1415337606-2186-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add gzip decompression support for kernel moduleNamhyung Kim2014-11-054-4/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now my Archlinux box shows module symbols correctly. Before: $ perf report --stdio Failed to open /tmp/perf-3477.map, continuing without symbols no symbols found in /usr/bin/date, maybe install a debug package? No kallsyms or vmlinux with build-id 7b4ea0a49ae2111925857099aaf05c3246ff33e0 was found [drm] with build id 7b4ea0a49ae2111925857099aaf05c3246ff33e0 not found, continuing without symbols No kallsyms or vmlinux with build-id edd931629094b660ca9dec09a1b635c8d87aa2ee was found [jbd2] with build id edd931629094b660ca9dec09a1b635c8d87aa2ee not found, continuing without symbols No kallsyms or vmlinux with build-id a7b1eada671c34933e5610bb920b2ca4945a82c3 was found [ext4] with build id a7b1eada671c34933e5610bb920b2ca4945a82c3 not found, continuing without symbols No kallsyms or vmlinux with build-id d69511fa3e5840e770336ef45b06c83fef8d74e3 was found [scsi_mod] with build id d69511fa3e5840e770336ef45b06c83fef8d74e3 not found, continuing without symbols No kallsyms or vmlinux with build-id af0430af13461af058770ee9b87afc07922c2e77 was found [libata] with build id af0430af13461af058770ee9b87afc07922c2e77 not found, continuing without symbols No kallsyms or vmlinux with build-id aaeedff8160ce631a5f0333591c6ff291201d29f was found [libahci] with build id aaeedff8160ce631a5f0333591c6ff291201d29f not found, continuing without symbols No kallsyms or vmlinux with build-id c57907712becaf662dc4981824bb372c0441d605 was found [mac80211] with build id c57907712becaf662dc4981824bb372c0441d605 not found, continuing without symbols No kallsyms or vmlinux with build-id e0589077cc0ec8c3e4c40eb9f2d9e69d236bee8f was found [iwldvm] with build id e0589077cc0ec8c3e4c40eb9f2d9e69d236bee8f not found, continuing without symbols No kallsyms or vmlinux with build-id 2d86086bf136bf374a2f029cf85a48194f9b950b was found [cfg80211] with build id 2d86086bf136bf374a2f029cf85a48194f9b950b not found, continuing without symbols No kallsyms or vmlinux with build-id 4493c48599bdb3d91d0f8db5150e0be33fdd9221 was found [iwlwifi] with build id 4493c48599bdb3d91d0f8db5150e0be33fdd9221 not found, continuing without symbols ... # # Overhead Command Shared Object Symbol # ........ ............... ....................... ........................................................ # 0.03% swapper [ext4] [k] 0x000000000000fe2e 0.03% swapper [kernel.kallsyms] [k] account_entity_enqueue 0.03% swapper [ext4] [k] 0x000000000000fc2b 0.03% irq/50-iwlwifi [iwlwifi] [k] 0x000000000000200b 0.03% swapper [kernel.kallsyms] [k] ktime_add_safe 0.03% swapper [kernel.kallsyms] [k] elv_completed_request 0.03% swapper [libata] [k] 0x0000000000003997 0.03% swapper [libahci] [k] 0x0000000000001f25 0.03% swapper [kernel.kallsyms] [k] rb_next 0.03% swapper [kernel.kallsyms] [k] blk_finish_request 0.03% swapper [ext4] [k] 0x0000000000010248 0.00% perf [kernel.kallsyms] [k] native_write_msr_safe After: $ perf report --stdio Failed to open /tmp/perf-3477.map, continuing without symbols no symbols found in /usr/bin/tr, maybe install a debug package? ... # # Overhead Command Shared Object Symbol # ........ ............... ........................... ...................................................... # 0.04% kworker/u16:3 [ext4] [k] ext4_read_block_bitmap 0.03% kworker/u16:0 [mac80211] [k] ieee80211_sta_reset_beacon_monitor 0.02% irq/50-iwlwifi [mac80211] [k] ieee80211_get_bssid 0.02% firefox [e1000e] [k] __ew32_prepare 0.02% swapper [libahci] [k] ahci_handle_port_interrupt 0.02% emacs libglib-2.0.so.0.4000.0 [.] g_mutex_unlock 0.02% swapper [e1000e] [k] e1000_clean_tx_irq 0.02% dwm [kernel.kallsyms] [k] __schedule 0.02% gnome-terminal- [vdso] [.] __vdso_clock_gettime 0.02% swapper [e1000e] [k] e1000_alloc_rx_buffers 0.02% irq/50-iwlwifi [mac80211] [k] ieee80211_rx 0.01% firefox [vdso] [.] __vdso_gettimeofday 0.01% irq/50-iwlwifi [iwlwifi] [k] iwl_pcie_rxq_restock.part.13 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/87h9yexshi.fsf@sejong.aot.lge.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Do not attempt to run perf-read-vdso32 if it wasn't builtAdrian Hunter2014-10-291-2/+6
| | | | | | | | | | | | | | | | | popen() causes an error message to print if perf-read-vdso32 does not run. Avoid that by not trying to run it if it was not built. Ditto perf-read-vdsox32. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1414061124-26830-17-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Build programs to copy 32-bit compatibilityAdrian Hunter2014-10-294-2/+45
| | | | | | | | | | | | | | | | | | | | perf tools copy VDSO out of memory. However, on 64-bit machines there may be 32-bit compatibility VDOs also. To copy those requires separate 32-bit executables. This patch adds to the build additional programs perf-read-vdso32 and perf-read-vdsox32 for 32-bit and x32 respectively. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com>, Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1414061124-26830-15-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix GNU-only grep usage in MakefileJohn Spencer2014-09-171-1/+1
| | | | | | | | | This makes it work with non-GNU grep's as well. Signed-off-by: John Spencer <maillist-linux@barfooze.de> Acked-by: Namhyung Kim <namhyung@kernel.org> Link: http://thread.gmane.org/gmane.linux.kernel.perf.user/1686 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Allow to specify lib compile variable for spec usageJiri Olsa2014-09-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | We need a way to specify $(lib) part of the installation path for traceevent plugin libraries. Currently we use 'lib64' for x86_64 and 'lib' otherwise. Instead of listing all possible values, this change allows the rpm spec code to specify the correct $(lib) part based on processed architecture, like $ make ... lib=%{_lib} Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kyle McMartin <kyle@mcmartin.ca> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1408978552-17131-1-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools powerpc: Fix build issue when DWARF support is disabledAnton Blanchard2014-09-171-4/+6
| | | | | | | | | | | | | | The powerpc skip callchain code uses DWARF, so we must disable it if DWARF is disabled. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20140825182506.2be6512d@kryten Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Default to python version 2Thomas Ilsche2014-08-121-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to PEP 394 recommendation [1], it's more portable to use python2 rather than plain python to refer python binary version 2. Since there're distros using python3 by default like Arch, and we don't support python3 (yet), it'd be better using python2 explicitly. But older versions (prior to 2.7) seem not to provide python2 but just python. Given that it's only old version, try python2 first and then fallback to python. It'll ensure that it always points to python 2.x. I tested (compiles and perf script runs) with the combinations: 1) python -> python2.x, python-config -> python2.x-config python2 N/A, python2-config N/A 2) python -> python3.x, python-config -> python3.x-config python2 -> python2.x, python2-config -> python2.x-config 3) python -> python2.x, python-config -> python2.x-config python2 -> python2.x, python2-config -> python2.x-config 4) python -> python2.x, python-config -> python2.x-config python2 -> python2.x, python2-config N/A Based on / replaces the patch 2/2 by Namhyung Kim. [1] https://www.python.org/dev/peps/pep-0394 Based-on-patch-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/53DF8493.6070206@tu-dresden.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix make PYTHON overrideNamhyung Kim2014-08-122-28/+24
| | | | | | | | | | | | | | | | | | | | | | | | Thomas reported that make PYTHON=python2 is not work on some systems. I can reproduce it on my ArchLinux box too. This is because it's overridden by config/feature-checks/Makefile regardless of PYTHON setting. I guess it's a bug slipped into during the feature checking change. Actually, we don't need to check python-config in the feature-checks. We can just pass appropriate FEATURE_CHECK_*FLAGS. Reported-by: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Link: http://lkml.kernel.org/r/1406617040-26909-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add feature test for __sync_val_compare_and_swapAdrian Hunter2014-07-164-0/+29
| | | | | | | | | | | | | | | | Add a feature test for __sync_val_compare_and_swap() and __sync_bool_compare_and_swap() Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1405332185-4050-30-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kvm: Introduce HAVE_KVM_STAT_SUPPORT flagAlexander Yarygin2014-07-071-0/+4
| | | | | | | | | | | | | | | | | | | kvm stat support is currently conditional on i386/x86_64. Let's abstract this into a HAVE_KVM_STAT_SUPPORT flag, so that other architectures can support kvm stat as well. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1404395992-17095-2-git-send-email-yarygin@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools powerpc: Adjust callchain based on DWARF debug infoSukadev Bhattiprolu2014-06-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When saving the callchain on Power, the kernel conservatively saves excess entries in the callchain. A few of these entries are needed in some cases but not others. We should use the DWARF debug information to determine when the entries are needed. Eg: the value in the link register (LR) is needed only when it holds the return address of a function. At other times it must be ignored. If the unnecessary entries are not ignored, we end up with duplicate arcs in the call-graphs. Use the DWARF debug information to determine if any callchain entries should be ignored when building call-graphs. Callgraph before the patch: 14.67% 2234 sprintft libc-2.18.so [.] __random | --- __random | |--61.12%-- __random | | | |--97.15%-- rand | | do_my_sprintf | | main | | generic_start_main.isra.0 | | __libc_start_main | | 0x0 | | | --2.85%-- do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --38.88%-- rand | |--94.01%-- rand | do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --5.99%-- do_my_sprintf main generic_start_main.isra.0 __libc_start_main 0x0 Callgraph after the patch: 14.67% 2234 sprintft libc-2.18.so [.] __random | --- __random | |--95.93%-- rand | do_my_sprintf | main | generic_start_main.isra.0 | __libc_start_main | 0x0 | --4.07%-- do_my_sprintf main generic_start_main.isra.0 __libc_start_main 0x0 TODO: For split-debug info objects like glibc, we can only determine the call-frame-address only when both .eh_frame and .debug_info sections are available. We should be able to determin the CFA even without the .eh_frame section. Fix suggested by Anton Blanchard. Thanks to valuable input on DWARF debug information from Ulrich Weigand. Reported-by: Maynard Johnson <maynard@us.ibm.com> Tested-by: Maynard Johnson <maynard@us.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20140625154903.GA29607@us.ibm.com Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tools: Emit more precise message for missing glibc static libraryArnaldo Carvalho de Melo2014-06-091-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | When the user does: make -C tools/perf LDFLAGS=-static asking for a static build, and the glibc-static (or equivalent) is not found, the message wasn't clear, stating that one of glibc-devel or glibc-static wasn't installed, clarify it checking if -static is present in LDFLAGS. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-7e0sfobbzgeydzi9gsz8ss3m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix 'make help' message errorJianyu Zhan2014-06-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | Currently 'make help' message has such hint: use "make prefix=<path> <install target>" to install to a particular path like make prefix=/usr/local install install-doc But this is misleading, when I specify "prefix=/usr/local", it has got no respect at all. This is because that, "DESTDIR" is considered first. In this case, "DESTDIR" has an empty value, so "prefix" is honored. However, "prefix" is unconditionally assigned to $HOME, regardless of what it is set to from command line. So our "prefix" setting got no respect and the actual destination falls back to $HOME. This patch fixes this issue and corrects the help message. Signed-off-by: Jianyu Zhan <nasa4836@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1401727474-19370-1-git-send-email-nasa4836@gmail.com Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tools: Add warning when disabling perl scripting support due to missing ↵Arnaldo Carvalho de Melo2014-06-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | devel files We were just showing "libperl: OFF", unlike other features where we present the user with a message helping have a feature built in. Fix it by adding the following message: config/Makefile:450: Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-t7yeud34ehimlfi6pklb29p7@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tests: Add dwarf unwind test on ARMJean Pihet2014-05-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Adding dwarf unwind test, that setups live machine data over the perf test thread and does the remote unwind. Need to use -fno-optimize-sibling-calls for test compilation, otherwise 'krava_*' function calls are optimized into jumps and omitted from the stack unwind. So far it was enabled only for x86. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1400229672-16104-3-git-send-email-jean.pihet@linaro.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tools: Get rid of on_exit() feature testNamhyung Kim2014-05-124-33/+0
| | | | | | | | | | | | The on_exit() function was only used in perf record but it's gone in previous patch. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Stephane Eranian <eranian@google.com> Cc: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> Cc: Irina Tirdea <irina.tirdea@intel.com> Link: http://lkml.kernel.org/r/1399855645-25815-2-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2014-05-011-1/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/core Pull perf/core improvements and fixes from Jiri Olsa: * Wire up perf_regs and unwind support for ARM64 (Jean Pihet) * Move u64_swap union to its single user's header, evsel.h (Borislav Petkov) * Fix for s390 to properly parse tracepoints plus test code (Alexander Yarygin) * Handle EINTR error for readn/writen (Namhyung Kim) Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf tools ARM64: Wire up perf_regs and unwind supportJean Pihet2014-04-291-1/+7
| | | | | | | | | | | | | | | | | | | | | | This patch hooks in the perf_regs and libunwind code for ARM64. The tools/perf/arch/arm64 is created; it contains the arch specific code for DWARF unwinding. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/1398688353-3737-1-git-send-email-jean.pihet@linaro.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* | perf x86: Fix perf to use non-executable stack, againMathias Krause2014-04-301-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/x86/tests/regs_load.S is missing the linker note about the stack requirements, therefore making the linker fall back to an executable stack. As this object gets linked against the final perf binary, it'll needlessly end up with an executable stack. Fix this by adding the appropriate linker note. Also add a global linker flag to prevent future regressions, as suggested by Jiri. This way perf won't get an executable stack even if we fail to add the .GNU-stack linker note to future assembler files. Though, doing so might create regressions the other way around, when (statically) linking against libraries needing an executable stack. But, apparently, regressing in that direction is wanted as it is an indicator of poor code quality -- or just missing linker notes. Fixes: 3c8b06f981 ("perf tests x86: Introduce perf_regs_load function") Signed-off-by: Mathias Krause <minipli@googlemail.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1398617466-22749-1-git-send-email-minipli@googlemail.com Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* | perf tools: Fix bfd dependency libraries detectionJiri Olsa2014-04-301-11/+23
|/ | | | | | | | | | | | | | | | | | | | | | | There's false assumption in the library detection code assuming -liberty and -lz are always present once bfd is detected. The fails on Ubuntu (14.04) as reported by Ingo. Forcing the bdf dependency libraries detection any time bfd library is detected. Reported-by: Ingo Molnar <mingo@kernel.org> Tested-by: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1398676935-6615-1-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tools: Disable libdw unwind for all but x86 archJiri Olsa2014-04-231-0/+8
| | | | | | | | | | | | | | | | | | | So far there's only x86 libdw unwind support merged in perf. Disable it on all other architectures in case libdw unwind support is detected in system. Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Josh Boyer <jwboyer@fedoraproject.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1397988006-14158-1-git-send-email-jolsa@redhat.com Signed-off-by: Jiri Olsa <jolsa@redhat.com>
* Merge branch 'perf-core-for-mingo' into perf/urgentIngo Molnar2014-04-141-3/+4
|\ | | | | | | | | | | | | | | | | Conflicts: tools/perf/bench/numa.c Pull perf fixes from Jiri Olsa. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf tools: Pick up libdw without explicit LIBDW_DIRRamkumar Ramachandra2014-04-141-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Makefile logic sets FEATURE_CHECKS_CFLAGS-libdw-dwarf-unwind and FEATURE_CHECKS_LDFLAGS-libdw-dwarf-unwind only if LIBDW_DIR is defined. This means that under a normal setup, $ make NO_LIBUNWIND=1 won't automatically pick up libdw. Fix this. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Acked-by: Jean Pihet <jean.pihet@linaro.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1395873845-466-1-git-send-email-artagnon@gmail.com Signed-off-by: Jiri Olsa <jolsa@redhat.com>
| * perf callchains: Disable unwind libraries when libelf isn't foundArnaldo Carvalho de Melo2014-04-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I.e. do the same as when NO_LIBELF is explicitely passed in the 'make' command line, fixing this: Auto-detecting system features: ... dwarf: [ OFF ] ... glibc: [ on ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ OFF ] ... libunwind: [ OFF ] ... libdw-dwarf-unwind: [ OFF ] ... DWARF post unwind library: libdw <SNIP> CC /tmp/build/perf/util/symbol-minimal.o CC /tmp/build/perf/util/unwind-libdw.o arch/x86/util/unwind-libdw.c:1:30: fatal error: elfutils/libdwfl.h: No such file or directory compilation terminated. CC /tmp/build/perf/tests/keep-tracking.o util/unwind-libdw.c:2:28: fatal error: elfutils/libdw.h: No such file or directory compilation terminated. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-e39j1yxanltjx4t0msse63ax@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri Olsa <jolsa@redhat.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds2014-04-061-1/+2
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arch/tile updates from Chris Metcalf: "These fix a few stray build issues seen in linux-next, and also add the minimal required support for perf to tilegx" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: remove unused variable 'devcap' tile: Fix vDSO compilation issue with allyesconfig perf tools: Allow building for tile tile/perf: Support perf_events on tilegx and tilepro tile: Enable NMIs on return from handle_nmi() without errors tile: Add support for handling PMC hardware tile: don't use __get_cpu_var() with structure-typed arguments tile: avoid overflow in ns2cycles
| * perf tools: Allow building for tileZhigang Lu2014-03-071-1/+2
| | | | | | | | | | | | | | | | | | Tested by building perf: - Cross-compiled for tile on x86_64 - Built natively on tile Signed-off-by: Zhigang Lu <zlu@tilera.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
* | Merge branch 'perf/urgent' into perf/coreIngo Molnar2014-03-112-2/+2
|\| | | | | | | | | | | Merge the latest fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf tools: fix BFD detection on opensuseAndi Kleen2014-02-272-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | opensuse libbfd requires -lz -liberty to build. Add those to the BFD feature detection. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1389469379-13340-2-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Setup default dwarf post unwinderJiri Olsa2014-02-241-17/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Factor NO_LIBDW_DWARF_UNWIND makefile variable and code that selects default DWARf post unwinder based on detected features (libdw and libunwind support) If both are detected the libunwind is selected as default. Simple 'make' will try to add: - libunwind unwinder if present - libdw unwinder if present - disable dwarf unwind if non of libunwind and libdw libraries are present If one of the DWARF unwind libraries is detected, message is displayed which one (libunwind/libdw) is compiled in. Examples: - compile in libdw unwinder if present: $ make NO_LIBUNWIND=1 - compile in libdw (with libdw installation directory) unwinder if present: $ make LIBDW_DIR=/opt/elfutils/ NO_LIBUNWIND=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... DWARF post unwind library: libdw - disable post dwarf unwind completely: $ make NO_LIBUNWIND=1 NO_LIBDW_DWARF_UNWIND=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... DWARF post unwind library: libunwind Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1392825179-5228-6-git-send-email-jolsa@redhat.com [ Add suggestion about setting LIBDW_DIR when not finding libdw ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Add libdw DWARF post unwind supportJiri Olsa2014-02-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. The new code is contained in unwin-libdw.c object, and implements unwind__get_entries unwind interface function. New Makefile variable NO_LIBDW_DWARF_UNWIND was added to control its compilation, and is marked as disabled now. It's factored with the rest of the Makefile unwind build code in the next patch. Arch specific code was added for x86. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1392825179-5228-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Add feature check for libdw dwarf unwindJiri Olsa2014-02-244-8/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding feature check test code for libdw dwarf unwind. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1392825179-5228-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Warn the user about how to enable libunwind supportArnaldo Carvalho de Melo2014-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When one has libunwind installed somewhere the perf tools build process doesn't expects it to be, this happens: [acme@ssdandy linux]$ make O=/tmp/build/perf -C tools/perf/ install-bin make: Entering directory `/home/acme/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build config/Makefile:312: No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1 Auto-detecting system features: <SNIP> ... libunwind: [ OFF ] Change the message so that it tells how to use a non-standard libunwind install directory: config/Makefile:312: No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR [acme@ssdandy linux]$ make LIBUNWIND_DIR=/opt/libunwind-git/ O=/tmp/build/perf -C tools/perf/ install-bin make: Entering directory `/home/acme/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build Auto-detecting system features: <SNIP> ... libunwind: [ on ] Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-huoxnou7sw85lm58k3pi1xhw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Add variable display for VF make outputJiri Olsa2014-02-241-4/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding dump of interesting build directories to the make VF=1 output. $ make VF=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libunwind: [ on ] ... backtrace: [ on ] ... fortify-source: [ on ] ... gtk2-infobar: [ on ] ... libelf-getphdrnum: [ on ] ... libelf-mmap: [ on ] ... libpython-version: [ on ] ... on-exit: [ on ] ... stackprotector-all: [ on ] ... timerfd: [ on ] ... libunwind-debug-frame: [ OFF ] ... bionic: [ OFF ] ... prefix: /home/jolsa ... bindir: /home/jolsa/bin ... libdir: /home/jolsa/lib64 ... sysconfdir: /home/jolsa/etc Adding functions to print variable/text in features display - feature_print_var/feature_print_text (feature_print_text is used in next patches). Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1392825179-5228-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf tools: Factor features display codeJiri Olsa2014-02-241-41/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the we display all detected features/libraries by following rules: - if one of the features is missing - if it's build from clean tree This patch changes changes this behavior in several ways. - We no longer display all detected features, only detected libraries are displayed by default: $ make BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libunwind: [ on ] The assumption is, that above libraries are the most interesting part of the detection, while we don't care much about detection of on-exit support. - If all above libraries are detected, the default is not shown on subsequent builds. - If one of the above libraries is missing, the detection output is forced. - The features status is stored in PERF-FEATURES file and the detection output is forced in case the there's difference between the file contents and currently detected features. - If you want to see all detected features, you can use VF=1 make variable, that forces the detected features output. $ make VF=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libunwind: [ on ] ... backtrace: [ on ] ... fortify-source: [ on ] ... gtk2-infobar: [ on ] ... libelf-getphdrnum: [ on ] ... libelf-mmap: [ on ] ... libpython-version: [ on ] ... on-exit: [ on ] ... stackprotector-all: [ on ] ... timerfd: [ on ] ... libunwind-debug-frame: [ OFF ] ... bionic: [ OFF ] Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1392825179-5228-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | perf callchain: Introduce HAVE_DWARF_UNWIND_SUPPORT macroJiri Olsa2014-02-181-1/+1
|/ | | | | | | | | | | | | | | | | | | Introducing global macro HAVE_DWARF_UNWIND_SUPPORT to indicate we have dwarf unwind support. Any library providing the dwarf post unwind support will enable this macro. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jean Pihet <jean.pihet@linaro.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1389098853-14466-12-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix traceevent plugin path definitionsJosh Boyer2014-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The plugindir_SQ definition contains $(prefix) which is not needed as the $(libdir) definition already contains prefix in it. This leads to the path including an extra prefix in it, e.g. /usr/usr/lib64. The -DPLUGIN_DIR defintion includes DESTDIR. This is incorrect, as it sets the plugin search path to include the value of DESTDIR. DESTDIR is a mechanism to install in a non-standard location such as a chroot or an RPM build root. In the RPM case, this leads to the search path being incorrect after the resulting RPM is installed (or in some cases an RPM build failure). Remove both of these unnecessary inclusions. Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20140122150147.GK16455@hansolo.jdub.homelinux.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf: tools: Fix cross buildingMark Rutland2014-01-152-7/+8
| | | | | | | | | | | | | | | | | | | | | | | Currently the feature-checks Makefile does not inherit $(CC), and calls cc rather than $(CROSS_COMPILE)gcc. Thus the feature checks invoke the native toolchain rather than the cross toolchain, and can identify features as available when they are not. This can break the build. Additionally the native pkg-config is always called as opposed to $(CROSS_COMPILE)pkg-config, so the wrong flags and paths may be passed to the cross compiler. This patch passes CROSS_COMPILE down to the feature-checks Makefile, and forces its use. Additionally pkg-config is replaced with $(CROSS_COMPILE)pkg-config via a new $(PKG_CONFIG) variable. This patch has been build tested on x86_64 and arm. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/1389782648-4417-4-git-send-email-mark.rutland@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove unused test-volatile-register-var.cYann Droneaud2014-01-131-6/+0
| | | | | | | | | | | | | | | | | Since commit 01287e2cb7ad, test-volatile-register-var.c is no more built as part of the automatic feature check. This patch remove the unneeded file. Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/339d86ad76741ed929defd18541f774b404003b4.1389461371.git.ydroneaud@opteya.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools include: Move perf's linux/compiler.h to a generic placeNamhyung Kim2014-01-131-0/+1
| | | | | | | | | | | | | | So that it can be shared with others like libtraceevent. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1389276059-8829-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Automate setup of FEATURE_CHECK_(C|LD)FLAGS-all variablesJiri Olsa2014-01-131-3/+11
| | | | | | | | | | | | | | | | | Instead of explicitly adding same value into FEATURE_CHECK_(C|LD)FLAGS-all variables we can do that automatically. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1389098853-14466-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move arch setup into seprate MakefileJiri Olsa2014-01-132-34/+40
| | | | | | | | | | | | | | | | I need to use arch related setup in the tests/make, so moving arch setup into Makefile.arch. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1388759553-12974-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf config: Ignore generated files in feature-checksChunwei Chen2013-12-233-58/+60
| | | | | | | | | | | | | | 1. Rename the test-* binary files to test-*.bin for easier pattern matching as suggested by Ingo. 2. Ignore *.bin and *.d files. Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/52B52B9B.50708@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Making QUIET_(CLEAN|INSTAL) variables globalJiri Olsa2013-12-191-7/+0
| | | | | | | | | | | | | | | | | | | | | Moving QUIET_(CLEAN|INSTAL) variables into: tools/scripts/Makefile.include to be usable by other tools. The change to use them in libtraceevent is in following patches. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1387460527-15030-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf unwinding: Use the per-feature check flagsJean Pihet2013-12-102-26/+34
| | | | | | | | | | | | | | | | | | | | Use the per-feature check flags for the unwinding feature in order to correctly compile the test-all, libunwind and libunwind-debug-frame feature checks. Tested on x86_64, ARMv7 and ARMv8 with and without LIBUNWIND_DIR set in 'make -C tools/perf' Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linaro-kernel@lists.linaro.org Cc: patches@linaro.org Link: http://lkml.kernel.org/r/1386678244-13535-3-git-send-email-jean.pihet@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add per-feature check flagsJean Pihet2013-12-101-1/+1
| | | | | | | | | | | | | | | | | Add CFLAGS and LDFLAGS for each feature to be checked. This allows to pass flags and parameters to the feature checks compilation. Also simplifies the feature check makefile, to come in a subsequent patch. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linaro-kernel@lists.linaro.org Cc: patches@linaro.org Link: http://lkml.kernel.org/r/1386678244-13535-2-git-send-email-jean.pihet@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add build and install plugins targetsJiri Olsa2013-12-041-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding 'plugins' target along with the libtraceevent.a, so plugins are built together with traceevent library. Adding 'install-traceevent-plugins' Makefile install target, instructing perf to install plugins into: $(HOME)/.traceevent/plugins - If installed localy under $HOME $(DESTDIR)/$(prefix)/$(libdir)/traceevent/plugins - If installed globally Examples: $ make install ... $ find ~/.traceevent/plugins/ /home/jolsa/.traceevent/plugins/ /home/jolsa/.traceevent/plugins/plugin_mac80211.so /home/jolsa/.traceevent/plugins/plugin_kvm.so /home/jolsa/.traceevent/plugins/plugin_scsi.so /home/jolsa/.traceevent/plugins/plugin_sched_switch.so /home/jolsa/.traceevent/plugins/plugin_xen.so /home/jolsa/.traceevent/plugins/plugin_cfg80211.so /home/jolsa/.traceevent/plugins/plugin_function.so /home/jolsa/.traceevent/plugins/plugin_kmem.so /home/jolsa/.traceevent/plugins/plugin_hrtimer.so /home/jolsa/.traceevent/plugins/plugin_jbd2.so $ sudo make install DESTDIR=/opt/perf/ ... $ find /opt/perf/lib64/traceevent/plugins/ /opt/perf/lib64/traceevent/plugins/ /opt/perf/lib64/traceevent/plugins/plugin_kvm.so /opt/perf/lib64/traceevent/plugins/plugin_scsi.so /opt/perf/lib64/traceevent/plugins/plugin_mac80211.so /opt/perf/lib64/traceevent/plugins/plugin_hrtimer.so /opt/perf/lib64/traceevent/plugins/plugin_kmem.so /opt/perf/lib64/traceevent/plugins/plugin_jbd2.so /opt/perf/lib64/traceevent/plugins/plugin_sched_switch.so /opt/perf/lib64/traceevent/plugins/plugin_function.so /opt/perf/lib64/traceevent/plugins/plugin_cfg80211.so /opt/perf/lib64/traceevent/plugins/plugin_xen.so Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1386076182-14484-8-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove stackprotector feature checkJiri Olsa2013-12-043-16/+1
| | | | | | | | | | | | | | | | | | | | | We use -fstack-protector-all option to enable stack protecting for all available functions. There's no reason for enabling -Wstack-protector to get warning for unprotected functions. Removing stackprotector feature check which was used to enable the -Wstack-protector option. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1386076182-14484-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Include test-stackprotector-all.c in test-allJiri Olsa2013-12-021-0/+5
| | | | | | | | | | | | | | | | We're missing test-stackprotector-all.c in test-all check, adding it. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1385638408-23519-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Correct the message in feature-libnuma checking.Dongsheng Yang2013-12-021-1/+1
| | | | | | | | | | | | | | The package required for numa is named numactl-devel in Fedora or RHEL, and libnuma-devel in OpenSuSE, and libnuma-dev in Ubuntu. This patch corrects the package name in warning message in feature-libnuma checking. Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Acked-by: Peter Hurley <peter@hurleysoftware.com> Cc: Peter Hurley <peter@hurleysoftware.com> Link: http://lkml.kernel.org/r/1385998008-6851-1-git-send-email-yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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