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* tools: move pcmcia crc32hash tool from DocumentationShuah Khan2016-09-233-0/+42
| | | | | | | | | | | | | | Move pcmcia crc32hash tool from Documentation to tools/pcmcia and remove it from Documentation Makefile. Update location information for this tool. Create a new Makefile to build pcmcia. It can be built from top level directory or from pcmcia directory: Run make -C tools/pcmcia or cd tools/pcmcia; make Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* tools: move laptops dslm tool from DocumentationShuah Khan2016-09-233-0/+176
| | | | | | | | | | | | Move laptops dslm tool to tools/laptop/dslm and remove it from Documentation Makefile. Update location information for this tool. Create a new Makefile to build dslm. It can be built from top level directory or from laptops directory: Run make -C tools/laptop/dslm or cd tools/laptop/dslm; make Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* tools: move accounting tool from DocumentationShuah Khan2016-09-233-0/+560
| | | | | | | | | | | | Move accounting tool to tools and remove it from Documentation Makefile. Update location information for this tool. Create a new Makefile to build accounting. It can be built from top level directory or from accounting directory: Run make -C tools/accounting or cd tools/accounting; make Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: Move networking/timestamping from DocumentationShuah Khan2016-09-205-0/+1222
| | | | | | | | | | | | | Remove networking from Documentation Makefile to move the test to selftests. Update networking/timestamping Makefile to work under selftests. These tests will not be run as part of selftests suite and will not be included in install targets. They can be built and run separately for now. This is part of the effort to move runnable code from Documentation. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move watchdog tests from Documentation/watchdogShuah Khan2016-09-203-0/+114
| | | | | | | | | | | Remove watchdog-test from Makefile to move the test to selftests. Add Makefile and .gitignore for watchdog-test. watchdog-test will not be run as part of selftests suite and will not be included in install targets. It can be built separately for now. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move ia64 tests from Documentation/ia64Shuah Khan2016-09-203-0/+272
| | | | | | | | | | | | | | Remove ia64 from Makefile to move the test to selftests. Update ia64 Makefile to work under selftests. ia64 will not be run as part of selftests suite and will not be included in install targets. They can be built separately for now. The original Makefile built this test on all archirectures and this update doesn't change that. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move vDSO tests from Documentation/vDSOShuah Khan2016-09-205-0/+471
| | | | | | | | | | Remove vDSO from Makefile to move the to selftests. Update vDSO Makefile to work under selftests. vDSO will not be run as part of selftests suite and will not be included in install targets. They can be built separately for now. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move ptp tests from Documentation/ptpShuah Khan2016-09-204-0/+565
| | | | | | | | | | Remove ptp from Makefile to move the test to selftests. Update ptp Makefile to work under selftests. ptp will not be run as part of selftests suite and will not be included in install targets. They can be built separately for now. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move prctl tests from Documentation/prctlShuah Khan2016-09-205-0/+306
| | | | | | | | | | | Move prctl tests from Documentation/prctl to selftests/prctl. Remove prctl from Makefile to move the test. Update prctl Makefile to work under selftests. prctl will not be run as part of selftests suite and will not be included in install targets. They can be built separately for now. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests: move dnotify_test from Documentation/filesystemsShuah Khan2016-09-203-0/+42
| | | | | | | | | | | | | Move dnotify_test.c, Makefile, and .gitignore from Documentation/filesystems to selftests/filesystems. Remove filesystems build target from Documentation/Makefile and update selftests/filesystems/Makefile to work under selftests. dnotify_test will not be run as part of selftests suite and will not be included in install targets. It can be built separately for now. Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests/timers: Add missing error code assignment before testChristophe JAILLET2016-09-201-2/+2
| | | | | | | | | In order to work, the 'err' return value has to be updated otherwise the test can never be true. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* selftests/zram: replace ZRAM_LZ4_COMPRESSFabian Frederick2016-09-201-1/+1
| | | | | | | | | | | Since commit ce1ed9f98e88 ("zram: delete custom lzo/lz4") we need CONFIG_CRYPTO_LZ4=y instead of CONFIG_ZRAM_LZ4_COMPRESS Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2016-08-0626-106/+394
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Mostly tooling fixes and some late tooling updates, plus two perf related printk message fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tests bpf: Use SyS_epoll_wait alias perf tests: objdump output can contain multi byte chunks perf record: Add --sample-cpu option perf hists: Introduce output_resort_cb method perf tools: Move config/Makefile into Makefile.config perf tests: Add test for bitmap_scnprintf function tools lib: Add bitmap_and function tools lib: Add bitmap_scnprintf function tools lib: Add bitmap_alloc function tools lib traceevent: Ignore generated library files perf tools: Fix build failure on perl script context perf/core: Change log level for duration warning to KERN_INFO perf annotate: Plug filename string leak perf annotate: Introduce strerror for handling symbol__disassemble() errors perf annotate: Rename symbol__annotate() to symbol__disassemble() perf/x86: Modify error message in virtualized environment perf target: str_error_r() always returns the buffer it receives perf annotate: Use pipe + fork instead of popen perf evsel: Introduce constructor for cycles event
| * Merge tag 'perf-core-for-mingo-20160803' of ↵Ingo Molnar2016-08-0426-106/+394
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: New features: - Add --sample-cpu to 'perf record', to explicitely ask for sampling the CPU (Jiri Olsa) Fixes: - Fix processing of multi byte chunks in objdump output, fixing disassemble processing for annotation on at least ARM64 (Jan Stancek) - Use SyS_epoll_wait in a BPF 'perf test' entry instead of sys_epoll_wait, that is not present in the DWARF info in vmlinux files (Arnaldo Carvalho de Melo) - Add -wno-shadow when processing files using perl headers, fixing the build on Fedora Rawhide and Arch Linux (Namhyung Kim) Infrastructure changes: - Annotate prep work to better catch and report errors related to using objdump to disassemble DSOs (Arnaldo Carvalho de Melo) - Add 'alloc', 'scnprintf' and 'and' methods for bitmap processing (Jiri Olsa) - Add nested output resorting callback in hists processing (Jiri Olsa) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * perf tests bpf: Use SyS_epoll_wait aliasArnaldo Carvalho de Melo2016-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Something made the sys_epoll_wait() function alias not to be found in the vmlinux DWARF info, being found only in /proc/kallsyms, which made the BPF perf tests to fail: [root@jouet ~]# perf test BPF 37: Test BPF filter : 37.1: Test basic BPF filtering : FAILED! 37.2: Test BPF prologue generation : Skip 37.3: Test BPF relocation checker : Skip [root@jouet ~]# Using -v we can see it is failing to find DWARF info for the probed function, sys_epoll_wait, which we can find in /proc/kallsyms but not in vmlinux with CONFIG_DEBUG_INFO: [root@jouet ~]# grep -w sys_epoll_wait /proc/kallsyms ffffffffbd295b50 T sys_epoll_wait [root@jouet ~]# [root@jouet ~]# readelf -wi /lib/modules/4.7.0+/build/vmlinux | grep -w sys_epoll_wait [root@jouet ~]# If we try to use perf probe: [root@jouet ~]# perf probe sys_epoll_wait Failed to find debug information for address ffffffffbd295b50 Probe point 'sys_epoll_wait' not found. Error: Failed to add events. [root@jouet ~]# It all works if we use SyS_epoll_wait, that is just an alias to the probed function: [root@jouet ~]# grep -i sys_epoll_wait /proc/kallsyms ffffffffbd295b50 T SyS_epoll_wait ffffffffbd295b50 T sys_epoll_wait [root@jouet ~]# So use it: [root@jouet ~]# perf test BPF 37: Test BPF filter : 37.1: Test basic BPF filtering : Ok 37.2: Test BPF prologue generation : Ok 37.3: Test BPF relocation checker : Ok [root@jouet ~]# Further info: [root@jouet ~]# gcc --version gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) [acme@jouet linux]$ cat /etc/fedora-release Fedora release 24 (Twenty Four) Investigation as to why it fails is still underway, but it was always going from sys_epoll_wait to SyS_epoll_wait when looking up the DWARF info in vmlinux, and this is what is breaking now. Switching to use SyS_epoll_wait allows this test to proceed and test the BPF code it was designed for, so lets have this in to allow passing this test while we fix the root cause. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-7hekjp0bodwjbb419sl2b55h@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tests: objdump output can contain multi byte chunksJan Stancek2016-08-021-29/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | objdump's raw insn output can vary across architectures on the number of bytes per chunk (bpc) displayed and their endianness. The code-reading test relied on reading objdump output as 1 bpc. Kaixu Xia reported test failure on ARM64, where objdump displays 4 bpc: 70c48: f90027bf str xzr, [x29,#72] 70c4c: 91224000 add x0, x0, #0x890 70c50: f90023a0 str x0, [x29,#64] This patch adds support to read raw insn output for any bpc length. In case of 2+ bpc it also guesses objdump's display endian. Reported-and-Tested-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: Jan Stancek <jstancek@redhat.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@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/07f0f7bcbda78deb423298708ef9b6a54d6b92bd.1452592712.git.jstancek@redhat.com [ Fix up pr_fmt() call to use %zd for size_t variables, fixing the build on Ubuntu cross-compiling to armhf and ppc64 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf record: Add --sample-cpu optionJiri Olsa2016-08-024-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding --sample-cpu option to be able to explicitly enable CPU sample type. Currently it's only enable implicitly in case the target is cpu related. It will be useful for following c2c record tool. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf hists: Introduce output_resort_cb methodJiri Olsa2016-08-022-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When dealing with nested hist entries it's helpful to have a way to resort those nested objects. Adding optional callback call into output_resort function and following new interface function: typedef int (*hists__resort_cb_t)(struct hist_entry *he); void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog, hists__resort_cb_t cb); Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-7-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tools: Move config/Makefile into Makefile.configJiri Olsa2016-08-022-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no reason to keep it in separate directory now when we moved out the rest of the files. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tests: Add test for bitmap_scnprintf functionJiri Olsa2016-08-024-0/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Automatically test the bitmap_scnprintf function. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * tools lib: Add bitmap_and functionJiri Olsa2016-08-022-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to perform logical and on bitmaps. Code taken from kernel's include/linux/bitmap.h. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * tools lib: Add bitmap_scnprintf functionJiri Olsa2016-08-022-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to print bitmap list. Code mostly taken from kernel's bitmap_list_string. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1470074555-24889-3-git-send-email-jolsa@kernel.org [ s/bitmap_snprintf/bitmap_scnprintf/g as it is a scnprintf wrapper, having the same semantics wrt return value ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * tools lib: Add bitmap_alloc functionJiri Olsa2016-08-021-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding bitmap_alloc function to dynamically allocate bitmap. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20160802113302.GA7479@krava Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * tools lib traceevent: Ignore generated library filesNamhyung Kim2016-08-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20160802050148.3413-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf tools: Fix build failure on perl script contextNamhyung Kim2016-08-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On my Archlinux machine, perf faild to build like below: CC scripts/perl/Perf-Trace-Util/Context.o In file included from /usr/lib/perl5/core/perl/CORE/perl.h:3905:0, from Context.xs:23: /usr/lib/perl5/core/perl/CORE/inline.h: In function : /usr/lib/perl5/core/perl/CORE/cop.h:612:13: warning: declaration of 'av' shadows a previous local [-Werror-shadow] AV *av =3D GvAV(PL_defgv); ^ /usr/lib/perl5/core/perl/CORE/inline.h:526:5: note: in expansion of macro 'CX_POP_SAVEARRAY' CX_POP_SAVEARRAY(cx); ^~~~~~~~~~~~~~~~ In file included from /usr/lib/perl5/core/perl/CORE/perl.h:5853:0, from Context.xs:23: /usr/lib/perl5/core/perl/CORE/inline.h:518:9: note: shadowed declaration is here AV *av; ^~ What I did to fix is adding '-Wno-shadow' as the error message said it's the cause of the failure. Since it's from the perl (not perf) code base, we don't have the control so I just wanted to ignore the warning when compiling perl scripting code. Committer note: This also fixes the build on Fedora Rawhide. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160802024317.31725-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf annotate: Plug filename string leakArnaldo Carvalho de Melo2016-08-011-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If dso__build_id_filename(..., NULL, ...) returns !NULL its because it allocated it, so, when reaching the 'if (dso__is_kcore()) test, we already checked that and were just "fallbacking" to using dso->long_name, but without freeing filename, thus leaking it. Fix it by adding the dso__is_kcore() test to the 'or' group just after it, the one containing the full fallback code, including freeing the filename. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: ee205503f233 ("perf tools: Fix annotation with kcore") Link: http://lkml.kernel.org/n/tip-qi4rpjq8yo6myvg99kkgt0xz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf annotate: Introduce strerror for handling symbol__disassemble() errorsArnaldo Carvalho de Melo2016-08-015-31/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were just using pr_error() which makes it difficult for non stdio UIs to provide errors using its widgets, as they need to somehow catch what was passed to pr_error(). Fix it by introducing a __strerror() interface like the ones used elsewhere, for instance target__strerror(). This is just the initial step, more work will be done, but first some error handling bugs noticed while working on this need to be dealt with. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-dgd22zl2xg7x4vcnoa83jxfb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf annotate: Rename symbol__annotate() to symbol__disassemble()Arnaldo Carvalho de Melo2016-08-015-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function will not annotate anything, it will just disassembly the given map->dso and symbol. It currently does this by parsing the output of 'objdump --disassemble', but this could conceivably be done using a library or an offshot of the kernel's instruction decoder (arch/x86/lib/inat.c), etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2xpfl4bfnrd6x584b390qok7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf target: str_error_r() always returns the buffer it receivesArnaldo Carvalho de Melo2016-07-291-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So no need for checking if it uses the strerror_r() GNU variant error reporting mechanism, i.e. if it returns a pointer to a immutable string internal to glibc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: c8b5f2c96d1b ("tools: Introduce str_error_r()") Link: http://lkml.kernel.org/n/tip-xr83cd4y4r3cn6tq6w4f59jb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf annotate: Use pipe + fork instead of popenArnaldo Carvalho de Melo2016-07-291-4/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We will need to redirect the stderr as well, so open code popen as a starting point. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-k0zt9svg4bswiglem7ornts4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * perf evsel: Introduce constructor for cycles eventArnaldo Carvalho de Melo2016-07-283-20/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That is the default used when no events is specified in tools, separate it so that simpler tools that need no evlist can use it directly. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-67mwuthscwroz88x9pswcqyv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | | Merge tag 'ntb-4.8' of git://github.com/jonmason/ntbLinus Torvalds2016-08-061-0/+422
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NTB updates from Jon Mason: "NTB bug fixes for the ntb_tool and ntb_perf, and improvements to the ntb_perf and ntb_pingpong for increased debugability. Also, modification to the ntb_transport layer to increase/decrease the number of transport entries depending on the ring size" * tag 'ntb-4.8' of git://github.com/jonmason/ntb: NTB: ntb_hw_intel: use local variable pdev NTB: ntb_hw_intel: show BAR size in debugfs info ntb_test: Add a selftest script for the NTB subsystem ntb_perf: clear link_is_up flag when the link goes down. ntb_pingpong: Add a debugfs file to get the ping count ntb_tool: Add link status and files to debugfs ntb_tool: Postpone memory window initialization for the user ntb_perf: Wait for link before running test ntb_perf: Return results by reading the run file ntb_perf: Improve thread handling to increase robustness ntb_perf: Schedule based on time not on performance ntb_transport: Check the number of spads the hardware supports ntb_tool: Add memory window debug support ntb_perf: Allow limiting the size of the memory windows NTB: allocate number transport entries depending on size of ring size ntb_tool: BUG: Ensure the buffer size is large enough to return all spads ntb_tool: Fix infinite loop bug when writing spad/peer_spad file
| * | | ntb_test: Add a selftest script for the NTB subsystemLogan Gunthorpe2016-08-051-0/+422
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This script automates testing doorbells, scratchpads and memory windows for an NTB device. It can be run locally, with the NTB looped back to the same host or use SSH to remotely control the second host. In the single host case, the script just needs to be passed two arguments: a PCI ID for each side of the link. In the two host case the -r option must be used to specify the remote hostname (which must be SSH accessible and should probably have ssh-keys exchanged). A sample run looks like this: $ sudo ./ntb_test.sh 0000:03:00.1 0000:83:00.1 -p 29 Starting ntb_tool tests... Running link tests on: 0000:03:00.1 / 0000:83:00.1 Passed Running link tests on: 0000:83:00.1 / 0000:03:00.1 Passed Running db tests on: 0000:03:00.1 / 0000:83:00.1 Passed Running db tests on: 0000:83:00.1 / 0000:03:00.1 Passed Running spad tests on: 0000:03:00.1 / 0000:83:00.1 Passed Running spad tests on: 0000:83:00.1 / 0000:03:00.1 Passed Running mw0 tests on: 0000:03:00.1 / 0000:83:00.1 Passed Running mw0 tests on: 0000:83:00.1 / 0000:03:00.1 Passed Running mw1 tests on: 0000:03:00.1 / 0000:83:00.1 Passed Running mw1 tests on: 0000:83:00.1 / 0000:03:00.1 Passed Starting ntb_pingpong tests... Running ping pong tests on: 0000:03:00.1 / 0000:83:00.1 Passed Starting ntb_perf tests... Running local perf test without DMA 0: copied 536870912 bytes in 164453 usecs, 3264 MBytes/s Passed Running remote perf test without DMA 0: copied 536870912 bytes in 164453 usecs, 3264 MBytes/s Passed Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
* | | | Merge tag 'rtc-4.8' of ↵Linus Torvalds2016-08-051-3/+10
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "RTC for 4.8 Cleanups: - huge cleanup of rtc-generic and char/genrtc this allowed to cleanup rtc-cmos, rtc-sh, rtc-m68k, rtc-powerpc and rtc-parisc - move mn10300 to rtc-cmos Subsystem: - fix wakealarms after hibernate - multiples fixes for rctest - simplify implementations of .read_alarm New drivers: - Maxim MAX6916 Drivers: - ds1307: fix weekday - m41t80: add wakeup support - pcf85063: add support for PCF85063A variant - rv8803: extend i2c fix and other fixes - s35390a: fix alarm reading, this fixes instant reboot after shutdown for QNAP TS-41x - s3c: clock fixes" * tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (65 commits) rtc: rv8803: Clear V1F when setting the time rtc: rv8803: Stop the clock while setting the time rtc: rv8803: Always apply the I²C workaround rtc: rv8803: Fix read day of week rtc: rv8803: Remove the check for valid time rtc: rv8803: Kconfig: Indicate rx8900 support rtc: asm9260: remove .owner field for driver rtc: at91sam9: Fix missing spin_lock_init() rtc: m41t80: add suspend handlers for alarm IRQ rtc: m41t80: make it a real error message rtc: pcf85063: Add support for the PCF85063A device rtc: pcf85063: fix year range rtc: hym8563: in .read_alarm set .tm_sec to 0 to signal minute accuracy rtc: explicitly set tm_sec = 0 for drivers with minute accurancy rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() rtc: s3c: Remove unnecessary call to disable already disabled clock rtc: abx80x: use devm_add_action_or_reset() rtc: m41t80: use devm_add_action_or_reset() rtc: fix a typo and reduce three empty lines to one rtc: s35390a: improve two comments in .set_alarm ...
| * | | | rtc: rtctest: Change no IRQ detection for RTC_IRQP_SETAndrey Smirnov2016-06-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A call to ioctl(..., RTC_IRQP_SET, ...) should never result in ENOTTY. All new style RTC drivers implement it and all of the old style drivers return EINVAL when they don't support periodic IRQs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | | rtc: rtctest: Change no IRQ detection for RTC_IRQP_READAndrey Smirnov2016-06-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A call to ioctl(..., RTC_IRQP_READ, ...) should never result in ENOTTY. All new style RTC drivers implement it and all of the old style drivers return EINVAL when they don't support periodic IRQs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | | rtc: rtctest: Change alarm IRQ support detectionAndrey Smirnov2016-06-261-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For old style drivers, call a call to ioctl(..., RTC_ALM_SET, ...): - char/ds1302.c will always return -EINVAL - char/genrtc.c: will always return -EINVAL - char/rtc.c will succeed regardless if IRQs are supported or not - char/efirtc.c will always return -EINVAL - input/misc/hp_sdc_rtc.c ... that ioctl code is a good lesson about ifdefing code out and punting implementation ... and it will always return -EINVAL For new style rtc drivers, a call to ioctl(..., RTC_ALM_SET, ...) never results in a call to __rtc_set_alarm, since struct rtc_wkalarm passed to rtc_set_alarm has 'enabled' field set to 0. This means that rtc->ops->set_alarm driver hook is never called in that ioctl. Since no driver code interaction happens as a part of that call, using its results to ascertain properties of the driver is not going to work. To remedy this - use the result of RTC_AIE_ON to make the judgement. This patch also changes ENOTTY to EINVAL as an error code value that would tell us that IRQs are not supported. There are three reason for this: - As mentioned above old style driver never returns ENOTTY for this ioctl - In it's code __rtc_set_alarm() returns -EINVAL if rtc->ops->set_alarm method is not provided by the driver, so one reason for change is to be consistent with that code path. - A call to ioctl(..., RTC_UIE_ON, ...) will result in a call to rtc_update_irq_enable() and then __rtc_set_alarm(), which, if IRQs are not supported by the driver, will result in a non-zero error code. Returning ENOTTY in that case would: a) Not be consistent with other codepaths of rtc_update_irq_enable, for example the check of rtc->uie_unsupported b) Would break update IRQ emulation code since that codpath expects EINVAL c) Would break test's logic for feature support detection in the case of RTC_UIE_ON ioctl Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* | | | | tools/testing/radix-tree/linux/gfp.h: fix bitrotted valueValdis Kletnieks2016-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Apparently, the tools/testing version dates to a few flags ago, and we've sprouted 4 new ones since. Keep in sync with the value in the main tree... Link: http://lkml.kernel.org/r/23400.1469702675@turing-police.cc.vt.edu Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge tag 'linux-kselftest-4.8-rc1-update' of ↵Linus Torvalds2016-08-0111-13/+268
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: "This contains new tests and fixes: - a few fixes to existing tests - new media tests for testing driver unbind, and device removal paths while an user application is actively making system calls and ioctls" * tag 'linux-kselftest-4.8-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: media_tests add a new video device test selftests: media_tests - Add media_device_open to .gitignore selftests: add media controller regression test scripts and document selftests: add media_device_open test selftests: media_device_test change it to randomize loop count selftests/vm: Don't mlockall MCL_CURRENT in on-fault-limit test selftests/vm: write strlen length instead of sizeof to nr_hugepages selftests/lib: set printf.sh executable
| * | | | | selftests: media_tests add a new video device testShuah Khan2016-07-263-2/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new video device test that opens user specified Video Device and calls video ioctls in a loop once every 10 seconds. This test is intended for testing device removal and driver unbind while an ioctl is active. Clean device removal and driver unbind is expected without any use-after-free and panics. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests: media_tests - Add media_device_open to .gitignoreShuah Khan2016-06-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add media_device_open to .gitignore Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests: add media controller regression test scripts and documentShuah Khan2016-06-273-0/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add regression test scripts open_loop_test.sh, and bind_unbind_sample.sh. Also add regression_test.txt that describes the regression test procedure. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests: add media_device_open testShuah Khan2016-06-272-2/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new media test to open, run ioctl, and close the media device file. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests: media_device_test change it to randomize loop countShuah Khan2016-06-271-6/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change it to randomize the loop count instead of hardcoded number of times ioctl is called. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests/vm: Don't mlockall MCL_CURRENT in on-fault-limit testYannick Brosseau2016-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default MEMLOCK limit is not big enough to accomodate all the current pages of the test program process, so the test fails at this step. By removing the MCL_CURRENT flag, we allow the mlockall call to succeed. The mmap is twice the size of the current limit, so it will still fail as expected. Signed-off-by: Yannick Brosseau <scientist@fb.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests/vm: write strlen length instead of sizeof to nr_hugepagesYannick Brosseau2016-06-271-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When setting back the initial value to nr_hugepages, the test was writing a length sizeof of the string and checking that strlen was writen. Since those values are not the same, use strlen in both place instead. Also make the error messages more explicit to help in future debugging. Signed-off-by: Yannick Brosseau <scientist@fb.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | selftests/lib: set printf.sh executableSeongJae Park2016-06-271-0/+0
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test for test_printf module fails always because the test program, printf.sh, has no execution permission. This commit adds execution permission to it. Signed-off-by: SeongJae Park <sj38.park@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
* | | | | Merge tag 'linux-kselftest-4.8-rc1-fixes' of ↵Linus Torvalds2016-08-013-2/+123
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: - Add a new timer set-tz test case - Fix a bug in exec test Makefile dependency list * tag 'linux-kselftest-4.8-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/exec: Makefile is a run-time dependency, add it to the install list kselftests: timers: Add set-tz test case
| * | | | | selftests/exec: Makefile is a run-time dependency, add it to the install listYannick Brosseau2016-06-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The execveat test try to exec the Makefile file and expect an EACCES results. When running the test in the installed destination it would fail with ENOENT since the file is not there. Add Makefile to the TEST_FILES list so it's copied at install time. Signed-off-by: Yannick Brosseau <scientist@fb.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
| * | | | | kselftests: timers: Add set-tz test caseJohn Stultz2016-06-032-1/+121
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mika Westerberg reported a erroneous change in the error checking of settimeofday, so I wanted to add a test to ensure we don't trip over this again. Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Baolin Wang <baolin.wang@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-05 12:50:36 +0100