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2016-07-04perf unwind: Call unwind__prepare_access for forked threadJiri Olsa
Currently we call unwind__prepare_access for map event. In case we report fork event the thread inherits its parent's maps and unwind__prepare_access is never called for the thread. This causes unwind__get_entries seeing uninitialized unwind_libunwind_ops and thus returning no callchain. Adding unwind__prepare_access calls for fork even processing. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf unwind: Add initialized arg into unwind__prepare_accessJiri Olsa
Adding initialized arg into unwind__prepare_access to get feedback about the initialization state. It's not possible to get it from error code, because we return 0 even in case we don't recognize dso, which is valid. The 'initialized' value is used in following patch to speedup unwind__prepare_access calls logic in fork path. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1467634583-29147-4-git-send-email-jolsa@kernel.org [ Remove ; after static inline function signatures, fixes build break ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf tests: Fix hist accumulation testJiri Olsa
User's values from .perfconfig could overload the default callchain setup and cause this test to fail. Making sure the test is using default callchain_param values. 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/1467634583-29147-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf header: Transform nodes string info to structJiri Olsa
Storing NUMA info within struct numa_node instead of strings. This way it's usable in future patches. Also it turned out it's slightly less code involved than using strings. 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/1467634583-29147-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf buildid-cache: Scan and import user SDT events to probe cacheMasami Hiramatsu
perf buildid-cache --add <binary> scans given binary and add the SDT events to probe cache. "sdt_" prefix is appended for all SDT providers to avoid event-name clash with other pre-defined events. It is possible to use the cached SDT events as other cached events, via perf probe --add "sdt_<provider>:<event>=<event>". e.g. ---- # perf buildid-cache --add /lib/libc-2.17.so # perf probe --cache --list | head -n 5 /usr/lib/libc-2.17.so (a6fb821bdf53660eb2c29f778757aef294d3d392): sdt_libc:setjmp=setjmp sdt_libc:longjmp=longjmp sdt_libc:longjmp_target=longjmp_target sdt_libc:memory_heap_new=memory_heap_new # perf probe -x /usr/lib/libc-2.17.so \ -a sdt_libc:memory_heap_new=memory_heap_new Added new event: sdt_libc:memory_heap_new (on memory_heap_new in /usr/lib/libc-2.17.so) You can now use it in all perf tools, such as: perf record -e sdt_libc:memory_heap_new -aR sleep 1 # perf probe -l sdt_libc:memory_heap_new (on new_heap+183 in /usr/lib/libc-2.17.so) ---- Note that SDT event entries in probe-cache file is somewhat different from normal cached events. Normal one starts with "#", but SDTs are starting with "%". Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736025058.27797.13043265488541434502.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf probe: Add group name supportMasami Hiramatsu
Allow user to set group name for adding new event. Note that user must ensure that the group name doesn't conflict with existing group name carefully. E.g. Existing group name can conflict with other events. Especially, using the group name reserved for kernel modules can hide kernel embedded events when loading modules. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736024091.27797.9471545190066268995.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf sdt: ELF support for SDTHemant Kumar
This patch serves the initial support to identify and list SDT events in binaries. When programs containing SDT markers are compiled, gcc with the help of assembler directives identifies them and places them in the section ".note.stapsdt". To find these markers from the binaries, one needs to traverse through this section and parse the relevant details like the name, type and location of the marker. Also, the original location could be skewed due to the effect of prelinking. If that is the case, the locations need to be adjusted. The functions in this patch open a given ELF, find out the SDT section, parse the relevant details, adjust the location (if necessary) and populate them in a list. A typical note entry in ".note.stapsdt" section is as follows : |--nhdr.n_namesz--| ------------------------------------ | nhdr | "stapsdt" | ----- |----------------------------------| | | <location> <base_address> | | | <semaphore> | nhdr.n_descsize | "provider_name" "note_name" | | | <args> | ----- |----------------------------------| | nhdr | "stapsdt" | |... The above shows an excerpt from the section ".note.stapsdt". 'nhdr' is a structure which has the note name size (n_namesz), note description size (n_desc_sz) and note type (n_type). So, in order to parse the note note info, we need nhdr to tell us where to start from. As can be seen from <sys/sdt.h>, the name of the SDT notes given is "stapsdt". But this is not the identifier of the note. After that, we go to description of the note to find out its location, the address of the ".stapsdt.base" section and the semaphore address. Then, we find the provider name and the SDT marker name and then follow the arguments. Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736022628.27797.1201368329092908163.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04perf build: Add feature detection for libelf's elf_getshdrstrndx()Arnaldo Carvalho de Melo
That appeared after 0.140, and will be used in the SDT code, so, to avoid bisection break on older systems, add a feature detection and provide a stub with a pr_debug() to keep it building. Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-80y0eldgweorqnwha9rvfxjr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-04Merge 4.7-rc6 into staging-nextGreg Kroah-Hartman
We want the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-01perf probe: Remove caches when --cache is givenMasami Hiramatsu
'perf probe --del' removes caches when '--cache' is given. Note that the delete pattern is not the same as for normal events. If you cached probes with event name, --del "eventname" works as expected. However, if you skipped it, the cached probes doesn't have actual event name. In that case --del "probe-desc" is required (wildcard is acceptable). For example a cache entry has the probe-desc "vfs_read $params", you can remove it with --del 'vfs_read*'. ----- # perf probe --cache --list /[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1): vfs_read $params /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc): getaddrinfo $params # perf probe --cache --del vfs_read\* Removed cached event: probe:vfs_read # perf probe --cache --list /[kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1): /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc): getaddrinfo $params ----- Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736021651.27797.10250879847070772920.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-01perf probe: Show all cached probesMasami Hiramatsu
perf probe --list shows all cached probes when --cache is given. Each caches are shown with on which binary that probed. E.g.: ----- # perf probe --cache vfs_read \$params # perf probe --cache -x /lib64/libc-2.17.so getaddrinfo \$params # perf probe --cache --list [kernel.kallsyms] (1466a0a250b5d0070c6d0f03c5fed30b237970a1): vfs_read $params /usr/lib64/libc-2.17.so (c31ffe7942bfd77b2fca8f9bd5709d387a86d3bc): getaddrinfo $params ----- Note that $params requires debuginfo. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736020674.27797.13488316780383460180.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-01perf probe: Use cache entry if possibleMasami Hiramatsu
Before analyzing debuginfo, try to find a corresponding entry from probe cache always. This does not depend on --cache, the --cache enables to store/update cache, but looking up the cache is always enabled. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146736019226.27797.16366402884098398857.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-01ptr_ring: support resizing multiple queuesMichael S. Tsirkin
Sometimes, we need support resizing multiple queues at once. This is because it was not easy to recover to recover from a partial failure of multiple queues resizing. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30perf tools: Change cpu_map__fprintf outputJiri Olsa
Display cpu map in standard list form. (perf report -D output on perf stat data). before: 0x590 [0x18]: PERF_RECORD_CPU_MAP nr: 4 cpus: 0, 1, 2, 3 after: 0x590 [0x18]: PERF_RECORD_CPU_MAP: 0-3 Adding automated testcase. 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/1467113345-12669-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf test: Add -F/--dont-fork optionJiri Olsa
Adding -F/--dont-fork option to bypass forking for each test. It's useful for debugging test. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Nilay Vaish <nilayvaish@gmail.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/1467113345-12669-1-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf tests: Fix thread map test for -F optionJiri Olsa
I hit a bug when running test suite without forking each test (-F option): $ perf test -Fv ... 34: Test thread map : --- start --- FAILED tests/thread-map.c:24 wrong comm ---- end ---- Test thread map: FAILED! The reason was the process name wasn't 'perf' as expected by the test, because other tests set the name as well. Setting it explicitly now. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Nilay Vaish <nilayvaish@gmail.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/1467113345-12669-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf tools: Allow to reset open files counterJiri Olsa
I hit a bug when running test suite without forking each test (-F option): $ perf test -F dso 8: Test dso data read : Ok 9: Test dso data cache : FAILED! 10: Test dso data reopen : FAILED! The reason the session file limit is set just once for perf process so we need to reset it for each test, otherwise wrong limit is taken into account. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Nilay Vaish <nilayvaish@gmail.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/1467113345-12669-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf trace beauty eventfd: No need to include eventfd.hArnaldo Carvalho de Melo
Old systems such as RHEL5 lack this file, and what we need is already under ifdefs, so just ditch this #include. 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-dzbjfllw6znuoy37skwnwa4r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf trace beauty sched_policy: Define SCHED_RESET_ON_FORK for older systemsArnaldo Carvalho de Melo
RHEL5 for instance doesn't have this one, help it. 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-3adewnii78zi110eovfciopy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf annotate: Add number of samples to the headerPeter Zijlstra (Intel)
Staring at annotations of large functions is useless if there's only a few samples in them. Report the number of samples in the header to make this easier to determine. Committer note: The change amounts to: - Percent | Source code & Disassembly of perf-vdso.so for cycles:u ------------------------------------------------------------------ + Percent | Source code & Disassembly of perf-vdso.so for cycles:u (3278 samples) +-------------------------------------------------------------------------------- Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20160630082955.GA30921@twins.programming.kicks-ass.net [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf annotate: Simplify header dotted line sizingPeter Zijlstra (Intel)
No need to use strlen, etc to figure that out, just use the return from printf(), it will tell how wide the following line needs to be. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20160630082955.GA30921@twins.programming.kicks-ass.net [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30perf evsel: Utility function to fetch archRavi Bangoria
Add Utility function to fetch arch using evsel. (evsel->env->arch) Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anton Blanchard <anton@ozlabs.org> Cc: Daniel Axtens <dja@axtens.net> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1467267262-4589-2-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Several cases of overlapping changes, except the packet scheduler conflicts which deal with the addition of the free list parameter to qdisc_enqueue(). Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU changes from Paul E. McKenney: - Documentation updates. Just some simple changes, no design-level additions. - Miscellaneous fixes. - Torture-test updates. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-29Merge tag 'iio-for-4.8b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second round of new iio device support, features and cleanups in the 4.8 cycle Firstly some contact detail updates: * NXP took over freescale. Update the mma8452 header to reflect this. * Martin Kepplinger email address change in mma8452 header. * Adriana Reus has changed email address. Update .mailmap. * Matt Ranostay has changed email address. Update .mailmap. New Device Support * max1363 - add the missing i2c_device_ids for a couple of parts so they can actually be used. * ms5867 - add device ids for ms5805 and ms5837 parts. New Features * ad5755 - DT support. This one was a bit controversial and under review for a long time. Still no one could come up with a better solution. * stx104 - add gpio support * ti-adc081c - Add ACPI device ID matching. Core changes * Refuse to register triggers with duplicate names. There is no way to distinguish between them so this makes no sense. A few drivers do not generate unique names for each instance of the device present. We can't fix this without changing ABI so leave them and wait for someone to actually take the rare step of two identical accelerometers on the same board. * buffer-dma - use ARRAY_SIZE in a few appropriate locations. Tools * Fix the fact that the --trigger-num option in generic_buffer didn't allow 0 which is perfectly valid in the ABI. Cleanups * as3935 - improve error reporting. - remove redundant zeroing of a field in iio_priv. * gp2ap020a00f - use the iio_device_claim_*_mode helpers rather than open coding locking around mode changes. * isl29125 - use the iio_device_claim_*_mode helpers rather than open coding locking. * lidar - use the iio_device_claim_*_mode helpers rather than open coding locking. * mma8452 - more detail in devices supported description in comments (addresses and similar) * sca3000 - add a missing error check. * tcs3414 - use the iio_device_claim_*_mode helpers rather than open coding locking. * tcs3472 - use the iio_device_claim_*_mode helpers rather than open coding locking.
2016-06-29tools lib bpf: Fix spelling mistake: "missmatch" -> "mismatch"Colin Ian King
Trivial fix to spelling mistake Signed-off-by: Colin King <colin.king@canonical.com> Acked-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1467116617-8318-1-git-send-email-colin.king@canonical.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-29perf tools: Add documentation for perf.data on disk formatAndi Kleen
Add some documentation for the on disk format of perf.data. This is not documenting the actual perf events -- which are documented in perf_event.h -- but just the additional headers that perf record adds around them when writing the data to disk. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/1466800885-12974-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Generate fork and exit events to CTF outputWang Nan
If 'all' is selected, convert fork and exit events to output CTF stream. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-8-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Add '--all' option for 'perf data convert'Wang Nan
After this patch, 'perf data convert' convert comm events to output CTF stream. Result: # perf record -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.378 MB perf.data (73 samples) ] # perf data convert --to-ctf ./out.ctf [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ] [ perf data convert: Converted and wrote 0.003 MB (73 samples) ] # babeltrace --clock-seconds ./out.ctf/ [10627.402515791] (+?.?????????) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 } [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 } ... // only sample event is converted # perf data convert --all --to-ctf ./out.ctf [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ] [ perf data convert: Converted and wrote 0.023 MB (73 samples, 384 non-samples) ] # babeltrace --clock-seconds ./out.ctf/ [ 0.000000000] (+?.?????????) perf_comm: { cpu_id = 0 }, { pid = 1, tid = 1, comm = "init" } [ 0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 2, tid = 2, comm = "kthreadd" } [ 0.000000000] (+0.000000000) perf_comm: { cpu_id = 0 }, { pid = 3, tid = 3, comm = "ksoftirqd/0" } ... // comm events are converted [10627.402515791] (+10627.402515791) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 } [10627.402518972] (+0.000003181) cycles:ppp: { cpu_id = 0 }, { perf_ip = 0xFFFFFFFF81065AF4, perf_tid = 0, perf_pid = 0, perf_period = 1 } ... // samples are also converted Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-7-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Generate comm event to CTF outputWang Nan
If 'all' is selected, convert comm event to output CTF stream. setup_non_sample_events() is called if non_sample is selected. It creates a comm_class for comm event. Use macros to generate and process_comm_event and add_comm_event. These macros can be reused for other non-sample events. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-6-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Prepare collect non-sample eventsWang Nan
Following commits are going to allow 'perf data convert' to collect not only samples, but also non-sample events like comm and fork. In this patch we count non-sample events using c.non_sample_count, and prepare to print number of both type of events like: # ~/perf data convert --all --to-ctf ./out.ctf [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ] [ perf data convert: Converted and wrote 0.846 MB (6508 samples, 686 non-samples) ] Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-5-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Add 'all' optionWang Nan
If 'all' option is selected, 'perf data convert' should convert not only samples, but non-sample events such as comm and fork. Add this option in perf_data_convert_opts. Following commits will add cmdline option to select it. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-4-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Pass convert options through opts structureWang Nan
Following commits will add new option to 'perf data convert'. All options should be grouped into a structure and passed to low level converter (currently there's only one converter). Introduce data-convert.h and define 'struct perf_data_convert_opts' in it. Pass 'force' through opts. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data ctf: Add value_set_string() helperWang Nan
There are many value_set_##x helper for integer, but only for integer. This patch adds value_set_string() helper to help following commits create string fields. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466767332-114472-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf symbols: Use proper dso name for is_regular_fileJiri Olsa
Marc reported use of uninitialized memory: > In commit "403567217d3f perf symbols: Do not read symbols/data from > device files" a check to uninitialzied memory was added. This leads to > the following valgrind output: > > ==24515== Syscall param stat(file_name) points to uninitialised byte(s) > ==24515== at 0x75B26D5: _xstat (in /lib/x86_64-linux-gnu/libc-2.22.so) > ==24515== by 0x4E548D: stat (stat.h:454) > ==24515== by 0x4E548D: is_regular_file (util.c:687) > ==24515== by 0x4A5BEE: dso__load (symbol.c:1435) > ==24515== by 0x4BB1AE: map__load (map.c:289) > ==24515== by 0x4BB1AE: map__find_symbol (map.c:333) > ==24515== by 0x4835B3: thread__find_addr_location (event.c:1300) > ==24515== by 0x4B5342: add_callchain_ip (machine.c:1652) > ==24515== by 0x4B5342: thread__resolve_callchain_sample (machine.c:1906) > ==24515== by 0x4B9E7D: thread__resolve_callchain (machine.c:1958) > ==24515== by 0x441B3E: process_event (builtin-script.c:795) > ==24515== by 0x441B3E: process_sample_event (builtin-script.c:920) > ==24515== by 0x4BEE29: perf_evlist__deliver_sample (session.c:1192) > ==24515== by 0x4BEE29: machines__deliver_event (session.c:1229) > ==24515== by 0x4BF770: perf_session__deliver_event (session.c:1286) > ==24515== by 0x4BF770: ordered_events__deliver_event (session.c:114) > ==24515== by 0x4C1D17: __ordered_events__flush (ordered-events.c:207) > ==24515== by 0x4C1D17: ordered_events__flush.part.3 (ordered-events.c:274) > ==24515== by 0x4BF44C: perf_session__process_user_event (session.c:1325) > ==24515== by 0x4BF44C: perf_session__process_event (session.c:1451) > ==24515== Address 0x807c6a0 is 0 bytes inside a block of size 4,096 alloc'd > ==24515== at 0x4C29C0F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) > ==24515== by 0x4A5BCB: dso__load (symbol.c:1421) > ==24515== by 0x4BB1AE: map__load (map.c:289) > ==24515== by 0x4BB1AE: map__find_symbol (map.c:333) > ==24515== by 0x4835B3: thread__find_addr_location (event.c:1300) > ==24515== by 0x4B5342: add_callchain_ip (machine.c:1652) > ==24515== by 0x4B5342: thread__resolve_callchain_sample (machine.c:1906) > ==24515== by 0x4B9E7D: thread__resolve_callchain (machine.c:1958) > ==24515== by 0x441B3E: process_event (builtin-script.c:795) > ==24515== by 0x441B3E: process_sample_event (builtin-script.c:920) > ==24515== by 0x4BEE29: perf_evlist__deliver_sample (session.c:1192) > ==24515== by 0x4BEE29: machines__deliver_event (session.c:1229) > ==24515== by 0x4BF770: perf_session__deliver_event (session.c:1286) > ==24515== by 0x4BF770: ordered_events__deliver_event (session.c:114) > ==24515== by 0x4C1D17: __ordered_events__flush (ordered-events.c:207) > ==24515== by 0x4C1D17: ordered_events__flush.part.3 (ordered-events.c:274) > ==24515== by 0x4BF44C: perf_session__process_user_event (session.c:1325) > ==24515== by 0x4BF44C: perf_session__process_event (session.c:1451) > ==24515== by 0x4C0EAC: __perf_session__process_events (session.c:1804) > ==24515== by 0x4C0EAC: perf_session__process_events (session.c:1858) The reason was a typo that passed global 'name' variable as the is_regular_file argument instead dso->long_name. Reported-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 403567217d3f ("perf symbols: Do not read symbols/data from device files") Link: http://lkml.kernel.org/r/1466772025-17471-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf record: Prepare picking perf_event_mmap_page from multiple evlistsWang Nan
Following commits introduce new evlists to record. This patch adjusts record__pick_pc() and introduces perf_evlist__pick_pc() to read control page from one specific evlist. record__pick_pc() will be improved to search control page from multiple evlists. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nilay Vaish <nilayvaish@gmail.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1467023052-146749-4-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf record: Prepare reading from multiple evlists in record__mmap_read_all()Wang Nan
Following commits introduce new evlists to record. This patch adjusts record__mmap_read_all() and record__mmap_read(): converting original record__mmap_read_all() to record__mmap_read_evlist(), read from one evlist; makes record__mmap_read() reading from specific evlist. record__mmap_read_all() will be improved to read from multiple evlists. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nilay Vaish <nilayvaish@gmail.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1467023052-146749-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf record: Move mmap setup block to separate functionWang Nan
Following commits introduce multiple evlists to record. This patch extracts perf_evlist__mmap_ex() processing to a new function, creates record__mmap() and record__mmap_evlist() to wrap perf_evlist__mmap_ex() and its error processing. They will be improvemented to create mmap for all evlists. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nilay Vaish <nilayvaish@gmail.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1467023052-146749-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf data convert: Include config.h headerJiri Olsa
Otherwise some compiler might scream: $ make LIBBABELTRACE_DIR=/opt/libbabeltrace/ LIBBABELTRACE=1 BUILD: Doing 'make -j4' parallel build CC util/data-convert-bt.o util/data-convert-bt.c: In function ‘convert__config’: util/data-convert-bt.c:1299:19: error: implicit declaration of function ‘perf_config_u64’ [-Werror=implicit-function-declaration] c->queue_size = perf_config_u64(var, value); ... Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: He Kuang <hekuang@huawei.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 41840d211c51 ("perf config: Move config declarations from util/cache.h to util/config.h") Link: http://lkml.kernel.org/r/1466772025-17471-1-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28perf build: Add libbabeltrace to build-testWang Nan
'make build-test' doesn't test LIBBABELTRACE=1. It misses a building failure caused by commit 41840d211c51 ("perf config: Move config declarations from util/cache.h to util/config.h"), breaks bisect. Add LIBBABELTRACE=1 to build-test. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1466818918-131281-1-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-28tools/turbostat: allow user to alter DESTDIR and PREFIXAndy Shevchenko
When run make -C tools DESTDIR=/my/nice/dir turbostat_install get a message install: cannot create regular file '/usr/bin/turbostat': Permission denied Allow user to alter DESTDIR and PREFIX variables. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-06-27selftests: media_tests - Add media_device_open to .gitignoreShuah Khan
Add media_device_open to .gitignore Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-06-27selftests: add media controller regression test scripts and documentShuah Khan
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>
2016-06-27selftests: add media_device_open testShuah Khan
Add a new media test to open, run ioctl, and close the media device file. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-06-27selftests: media_device_test change it to randomize loop countShuah Khan
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>
2016-06-27selftests/vm: Don't mlockall MCL_CURRENT in on-fault-limit testYannick Brosseau
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>
2016-06-27selftests/vm: write strlen length instead of sizeof to nr_hugepagesYannick Brosseau
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>
2016-06-27selftests/lib: set printf.sh executableSeongJae Park
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>
2016-06-27tools/testing/nvdimm: replace CONFIG_DMA_CMA dependency with vmalloc()Dan Williams
DMA_CMA is incompatible with SWIOTLB used in enterprise distro configurations. Switch to vmalloc() allocations for all resources. Acked-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-06-27perf tools: Add more toolchain tripletsRavi Bangoria
Add few more triplets based on Fedora and Ubuntu binutils (cross tools). Before applying patch on x86: ( Install binutils-powerpc64-linux-gnu.x86_64 ) $ perf report -i perf.data.powerpc --vmlinux vmlinux.powerpc \ --objdump powerpc64-linux-gnu-objdump After applying patch on x86: $ perf report -i perf.data.powerpc --vmlinux vmlinux.powerpc I.e. it will find the right objdump from the environment data recorded in the perf.data file + these triplets. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anton Blanchard <anton@ozlabs.org> Cc: Daniel Axtens <dja@axtens.net> Cc: Michael Ellerman <mpe@ellerman.id.au> Link: http://lkml.kernel.org/r/1466769240-12376-7-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit (git 2.34.1) at 2025-07-16 19:11:11 +0000