Commit Graph

708455 Commits

Author SHA1 Message Date
Sihyeon Jang e9b61e52c3 perf sched: Document missing --force option
Add --force to the man page.

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510842367-11011-4-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:06 -03:00
Sihyeon Jang f4a30d2bee perf timechart: Document missing --force option
Add --force to the man page.

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510842367-11011-3-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:06 -03:00
Sihyeon Jang 9b9d28a008 perf trace: Document missing option, colons
Add missing --force option to the man page.

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510842367-11011-2-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:05 -03:00
Sihyeon Jang 52186b8aa4 perf inject: Document missing options
Add the missing --force option to the man page.

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510842367-11011-1-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:05 -03:00
Jiri Olsa 742015ff12 perf: Fix header.size for namespace events
Reset header size for namespace events, otherwise it only gets bigger in
ctx iterations.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Fixes: e422267322 ("perf: Add PERF_RECORD_NAMESPACES to include namespaces related info")
Link: http://lkml.kernel.org/n/tip-nlo4gonz9d4guyb8153ukzt0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:04 -03:00
Sihyeon Jang 38ba1daf81 perf lock: Document missing options
Add man page entry for --force.

Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510837609-6277-1-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:04 -03:00
Kim Phillips 114bc191c3 perf evsel: Say which PMU Hardware event doesn't support sampling/overflow-interrupts
Help identify to the user the event with the unsupported sampling error.
Also suggest a corrective action.

BEFORE:

$ sudo ./oldperf record -e armv8_pmuv3/mem_access/,ccn/cycles/,armv8_pmuv3/l2d_cache/ true
Error:
PMU Hardware doesn't support sampling/overflow-interrupts.

AFTER:

$ sudo ./newperf record -e armv8_pmuv3/mem_access/,ccn/cycles/,armv8_pmuv3/l2d_cache/ true
Error:
ccn/cycles/: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'

Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171114150452.e846f2e23684c7d7d8ee706f@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:03 -03:00
Kim Phillips 239fb4fed6 perf c2c: Fix spelling mistakes in browser help text
Togle -> Toggle, lenght -> length.

Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171114150447.f4b63bc5d97c83cdaa8bf7dc@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:03 -03:00
Arnaldo Carvalho de Melo b89a5124d2 perf top: Ignore kptr_restrict when not sampling the kernel
If all events have attr.exclude_kernel set, no need to look at
kptr_restrict.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-yegpzg5bf2im69g0tfizqaqz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:02 -03:00
Arnaldo Carvalho de Melo 6c44395455 perf record: Ignore kptr_restrict when not sampling the kernel
If we're not sampling the kernel, we shouldn't care about kptr_restrict
neither synthesize anything for assisting in resolving kernel samples,
like the reference relocation symbol or kernel modules information.

Before:

  $ cat /proc/sys/kernel/kptr_restrict /proc/sys/kernel/perf_event_paranoid
  2
  2
  $ perf record sleep 1
  WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,
  check /proc/sys/kernel/kptr_restrict.

  Samples in kernel functions may not be resolved if a suitable vmlinux
  file is not found in the buildid cache or in the vmlinux path.

  Samples in kernel modules won't be resolved at all.

  If some relocation was applied (e.g. kexec) symbols may be misresolved
  even with a suitable vmlinux or kallsyms file.

  Couldn't record kernel reference relocation symbol
  Symbol resolution may be skewed if relocation was used (e.g. kexec).
  Check /proc/kallsyms permission or run as root.
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
  $ perf evlist -v
  cycles:uppp: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|PERIOD, disabled: 1, inherit: 1, exclude_kernel: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1
  $

After:

  $ perf record sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.001 MB perf.data (10 samples) ]
  $

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-t025e9zftbx2b8cq2w01g5e5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:02 -03:00
Arnaldo Carvalho de Melo 9c39ed9015 perf report: Ignore kptr_restrict when not sampling the kernel
If none of the evsels has attr.exclude_kernel set to zero, no kernel
samples, so no point in warning the user about problems in processing
kernel samples, as there will be none.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-7dn926v3at8txxkky92aesz2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:01 -03:00
Arnaldo Carvalho de Melo 07d6f446a9 perf evlist: Add helper to check if attr.exclude_kernel is set in all evsels
The warning about kptr_restrict needs to be emitted only when it is set
and we ask for kernel space samples, so add a helper to help with that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fh7drty6yljei9gxxzer6eup@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:01 -03:00
Thomas Richter 0879e5e5f3 perf test shell: Fix test case probe libc's inet_pton on s390x
The 'perf test' case "probe libc's inet_pton & backtrace it with ping"
fails on s390x. The reason is the 'realpath /lib64/ld*.so.* | uniq' line
which returns 2 libraries:

        root@s35lp76 shell]# realpath /lib64/ld*.so.* | uniq
        /usr/lib64/ld-2.26.so
        /usr/lib64/ld_pre_smc.so.1.0.1
        [root@s35lp76 shell]

This output makes the "perf probe" command lines invalid.

Use ldd tool to find out the libraries required by "bash" and check if
symbol "inet_pton" is part of the "libc" library.  Some distros do not
have a /lib64 directory.

I have also added a check for the existence of an IPv6 network interface
before it is being used.

Committer changes:

We can't really use ldd for libc, as in some systems, such as x86_64, it
has hardlinks and then ldd sees one and the kernel the other, so grep
for libc in /proc/self/maps to get the one we'll receive from
PERF_RECORD_MMAP.

Thomas checked this change and acked it.

Signed-off-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Suggested-by: Hendrik Brückner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Hendrik Brückner <brueckner@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20171114133409.GN8836@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:00 -03:00
Thomas Richter f231af789b perf test shell: Fix check open filename arg using 'perf trace' on s390x
This 'perf test' case fails on s390x. The 'touch' command on s390x uses
the 'openat' system call to open the file named on the command line:

[root@s35lp76 perf]# perf probe -l
  probe:vfs_getname    (on getname_flags:72@fs/namei.c with pathname)
[root@s35lp76 perf]# perf trace -e open touch /tmp/abc
     0.400 ( 0.015 ms): touch/27542 open(filename:
		/usr/lib/locale/locale-archive, flags: CLOEXEC) = 3
[root@s35lp76 perf]#

There is no 'open' system call for file '/tmp/abc'. Instead the 'openat'
system call is used:

[root@s35lp76 perf]# strace touch /tmp/abc
    execve("/usr/bin/touch", ["touch", "/tmp/abc"], 0x3ffd547ec98
			/* 30 vars */) = 0
    [...]
    openat(AT_FDCWD, "/tmp/abc", O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK, 0666) = 3
    [...]

On s390x the 'egrep' command does not find a matching pattern and
returns an error.

Fix this for s390x create a platform dependent command line to enable
the 'perf probe' call to listen to the 'openat' system call and get the
expected output.

Signed-off-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
LPU-Reference: 20171114071847.2381-1-tmricht@linux.vnet.ibm.com
Link: http://lkml.kernel.org/n/tip-3qf38jk0prz54rhmhyu871my@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:00 -03:00
Ravi Bangoria 648388ae68 perf annotate: Do not truncate instruction names at 6 chars
There are many instructions, esp on PowerPC, whose mnemonics are longer
than 6 characters. Using precision limit causes truncation of such
mnemonics.

Fix this by removing precision limit. Note that, 'width' is still 6, so
alignment won't get affected for length <= 6.

Before:

   li     r11,-1
   xscvdp vs1,vs1
   add.   r10,r10,r11

After:

  li     r11,-1
  xscvdpsxds vs1,vs1
  add.   r10,r10,r11

Reported-by: Donald Stence <dstence@us.ibm.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Taeung Song <treeze.taeung@gmail.com>
Link: http://lkml.kernel.org/r/20171114032540.4564-1-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:50:00 -03:00
Namhyung Kim 2f0af8600e perf help: Fix a bug during strstart() conversion
The commit 8e99b6d453 changed prefixcmp() to strstart() but missed to
change the return value in some place.  It makes perf help print
annoying output even for sane config items like below:

  $ perf help
  '.root': unsupported man viewer sub key.
  ...

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20171114001542.GA16464@sejong
Fixes: 8e99b6d453 ("tools include: Adopt strstarts() from the kernel")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:59 -03:00
Arnaldo Carvalho de Melo 19993b82a5 perf machine: Guard against NULL in machine__exit()
A recent fix for 'perf trace' introduced a bug where
machine__exit(trace->host) could be called while trace->host was still
NULL, so make this more robust by guarding against NULL, just like
free() does.

The problem happens, for instance, when !root users try to run 'perf
trace':

  [acme@jouet linux]$ trace
  Error:	No permissions to read /sys/kernel/debug/tracing/events/raw_syscalls/sys_(enter|exit)
  Hint:	Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/tracing'

  perf: Segmentation fault
  Obtained 7 stack frames.
  [0x4f1b2e]
  /lib64/libc.so.6(+0x3671f) [0x7f43a1dd971f]
  [0x4f3fec]
  [0x47468b]
  [0x42a2db]
  /lib64/libc.so.6(__libc_start_main+0xe9) [0x7f43a1dc3509]
  [0x42a6c9]
  Segmentation fault (core dumped)
  [acme@jouet linux]$

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrei Vagin <avagin@openvz.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 33974a414c ("perf trace: Call machine__exit() at exit")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:59 -03:00
Wang Nan a0e3dd79cd perf tests: Set evlist of test__task_exit() to !overwrite
Changing ringbuffer to !overwrite in this task is harmless because
this test uses a very low frequency (1) and using a very simple program
(true). There should have only 3 events in the whole test.  Overwriting
is impossible to happen.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20171113013809.212417-6-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:58 -03:00
Wang Nan 301d724aa1 perf tests: Set evlist of test__basic_mmap() to !overwrite
In this test, a large ring buffer is required so all events can feed
into, so overwrite or not is meaningless.

Change to !overwrite so following commits can remove this argument.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20171113013809.212417-5-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:58 -03:00
Wang Nan 677b060176 perf tests: Set evlist of test__sw_clock_freq() to !overwrite
Unsetting overwrite when calling perf_evlist__mmap is harmless. This
commit passes false to it, makes following commits eliminate the
overwrite argument easier.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20171113013809.212417-4-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:57 -03:00
Wang Nan d492326f16 perf tests: Set evlist of test__backward_ring_buffer() to !overwrite
Setting overwrite in perf_evlist__mmap() is meaningless because the
event in this evlist is already have 'overwrite' postfix and goes to
backward ring buffer automatically. Pass 'false' to perf_evlist__mmap()
to make it similar to others.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20171113013809.212417-3-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:57 -03:00
Sihyeon Jang 8fce3743ce perf top: Remove a duplicate word
Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510449047-12941-3-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:56 -03:00
Sihyeon Jang 958964f803 perf top: Document missing options
Signed-off-by: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1510449047-12941-2-git-send-email-uneedsihyeon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:56 -03:00
Andi Kleen 5039c8a28f perf script: Allow printing period for non freq mode groups
When using leader sampling the values of the not sampled but counted
events are shown by perf script in "period".

Currently printing period is only allowed when the main event has a
period, that is it is in frequency mode.

This implies that we cannot dump the values of counted events when the
leader event is not in frequency mode.

Just remove the check that the period must be set on all events. It will
just be printed as 0 instead if it's not available.

This fixes the following:

  $ perf record -c 100000 -e '{cycles,branches}:S'
  $ perf script -F event,period

Further commentary by Jiri Olsa:

The period will be the value of configured period, not 0:

int perf_evsel__parse_sample(struct ...
  ...
  data->period = evsel->attr.sample_period;

  $ perf record -c 100000
  $ perf script -F event,period | head -3
  Failed to open /tmp/perf-2048.map, continuing without symbols
      100000 cycles:ppp:
      100000 cycles:ppp:

other than that I think we can remove that check, because we will have
always sane number in period

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20171109145528.23371-4-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:55 -03:00
Andi Kleen 35c0a81a97 perf tools: Document some missing perf.data headers
Document STAT and CACHE header entries.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20171109145528.23371-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:55 -03:00
Thomas-Mich Richter 4359dd88af perf buildid-cache: Update help text for purge command
Clarify the perf buildid-cache help text for the purge operation.  The
purge subcommand takes a list of files (binaries) as option parameter.
Make the wording the same as for the add and remove operation.

Signed-off-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
LPU-Reference: 20171107144853.12925-1-tmricht@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:54 -03:00
Sukadev Bhattiprolu e795dd42b7 perf vendor events powerpc: Update POWER9 events
The POWER9 hardware has dropped support for several events, added
a few new events and changed the category for a couple of events.

Update the POWER9 events in Linux to reflect these changes.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20171108201938.GA10985@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:54 -03:00
Arnaldo Carvalho de Melo fa48c89264 perf script: Fix --per-event-dump for auxtrace synth evsels
When processing PERF_RECORD_AUXTRACE_INFO several perf_evsel entries
will be synthesized and inserted into session->evlist, eventually ending
in perf_script.tool.sample(), which ends up calling builtin-script.c's
process_event(), that expects evsel->priv to be a perf_evsel_script
object with a valid FILE pointer in fp.

So we need to intercept the processing of PERF_RECORD_AUXTRACE_INFO and
then setup evsel->priv for these newly created perf_evsel instances, do
it to fix the segfault in process_event() trying to use a NULL for that
FILE pointer.

Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: yuzhoujian <yuzhoujian@didichuxing.com>
Fixes: a14390fde6 ("perf script: Allow creating per-event dump files")
Link: http://lkml.kernel.org/n/tip-bthnur8r8de01gxvn2qayx6e@git.kernel.org
[ Merge fix by Ravi Bangoria before pushing upstream to preserv bisectability ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:53 -03:00
Seonghyun Park 60dbcd2532 perf tests: Add missing WRITE_ASS for new fields of perf_event_attr
Include newly added fields 'mmap2', 'comm_exec', 'use_clockid', 'namespaces',
'write_backward' and 'context_switch' from perf_event_attr to store_event().

Signed-off-by: Seonghyun Park <seonghyun0p@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Seonghyun Park <seonghyun0p@gmail.com>
Link: http://lkml.kernel.org/n/tip-vltn7pqhcv8h5fmo9cthk87q@git.kernel.org
[ Fix log message to add 'write_backward', fix the patch to add 'use_clock_id' ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:53 -03:00
Arnaldo Carvalho de Melo 82806c3aae perf evsel: Fix up leftover perf_evsel_stat usage via evsel->priv
I forgot one conversion, which got noticed by Thomas when running:

  $ perf stat  -e '{cpu-clock,instructions}' kill
  kill: not enough arguments
  Segmentation fault (core dumped)
  $

Fix it, those stats are in evsel->stats, not anymore in evsel->priv.

Reported-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Tested-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: e669e833da ("perf evsel: Restore evsel->priv as a tool private area")
Link: http://lkml.kernel.org/r/20171109150046.GN4333@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:53 -03:00
Jiri Olsa 86f5fe01cf perf tools: Use shell function for perl cflags retrieval
Using the shell function for perl CFLAGS retrieval instead of back
quotes (``). Both execute shell with the command, but the latter is more
explicit and seems to be the preferred way.

Also we don't have any other use of the back quotes in perf Makefiles.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171108102739.30338-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:52 -03:00
Andrei Vagin cbd5c1787b perf trace: Fix an exit code of trace__symbols_init
Currently if trace_event__register_resolver() fails, we return -errno,
but we can't be sure that errno isn't zero in this case.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vasily Averin <vvs@virtuozzo.com>
Link: http://lkml.kernel.org/r/20171108002246.8924-2-avagin@openvz.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:52 -03:00
Andi Kleen d056513260 perf evsel: Enable type checking for perf_evsel_config_term types
Use a typed enum for the perf_evsel_config_term type enum.  This allows
gcc to do much stronger type checks, and also check for missing case
statements.

I removed the unused _MAX member from the number.

It found one missing case. I'm not sure it's a real problem, so I just
turned it into a BUG_ON for now.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20171020202755.21410-1-andi@firstfloor.org
[ Renamed the enum name to term_type as per jolsa's request ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:51 -03:00
Andi Kleen c2f1cead19 perf record: Fix -c/-F options for cpu event aliases
The Intel PMU event aliases have a implicit period= specifier to set the
default period.

Unfortunately this breaks overriding these periods with -c or -F,
because the alias terms look like they are user specified to the
internal parser, and user specified event qualifiers override the
command line options.

Track that they are coming from aliases by adding a "weak" state to the
term. Any weak terms don't override command line options.

I only did it for -c/-F for now, I think that's the only case that's
broken currently.

Before:

$ perf record -c 1000 -vv -e uops_issued.any
...
  { sample_period, sample_freq }   2000003

After:

$ perf record -c 1000 -vv -e uops_issued.any
...
  { sample_period, sample_freq }   1000

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20171020202755.21410-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:51 -03:00
Arnaldo Carvalho de Melo 1873b710ac tools headers: Synchronize kernel ABI headers wrt SPDX tags
Two more, that were just in perf/core and thus weren't covered by Ingo's
latest headers synch, kcmp.h and prctl.h, silencing this:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kcmp.h' differs from latest version at 'include/uapi/linux/kcmp.h'
  Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'

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-2a0r7iybyqpkftllyy5t9hfk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:50 -03:00
Jiri Olsa f48e7c4070 perf annotate: Align source and offset lines
Align source with offset lines, which are more advanced, because of the
address column.

  Before:
         :      static void *worker_thread(void *__tdata)
         :      {
    0.00 :        48a971:       push   %rbp
    0.00 :        48a972:       mov    %rsp,%rbp
    0.00 :        48a975:       sub    $0x30,%rsp
    0.00 :        48a979:       mov    %rdi,-0x28(%rbp)
    0.00 :        48a97d:       mov    %fs:0x28,%rax
    0.00 :        48a986:       mov    %rax,-0x8(%rbp)
    0.00 :        48a98a:       xor    %eax,%eax
         :              struct thread_data *td = __tdata;
    0.00 :        48a98c:       mov    -0x28(%rbp),%rax
    0.00 :        48a990:       mov    %rax,-0x10(%rbp)
         :              int m = 0, i;
    0.00 :        48a994:       movl   $0x0,-0x1c(%rbp)
         :              int ret;
         :
         :              for (i = 0; i < loops; i++) {
    0.00 :        48a99b:       movl   $0x0,-0x18(%rbp)

  After:
         :              static void *worker_thread(void *__tdata)
         :              {
    0.00 :       48a971:       push   %rbp
    0.00 :       48a972:       mov    %rsp,%rbp
    0.00 :       48a975:       sub    $0x30,%rsp
    0.00 :       48a979:       mov    %rdi,-0x28(%rbp)
    0.00 :       48a97d:       mov    %fs:0x28,%rax
    0.00 :       48a986:       mov    %rax,-0x8(%rbp)
    0.00 :       48a98a:       xor    %eax,%eax
         :                      struct thread_data *td = __tdata;
    0.00 :       48a98c:       mov    -0x28(%rbp),%rax
    0.00 :       48a990:       mov    %rax,-0x10(%rbp)
         :                      int m = 0, i;
    0.00 :       48a994:       movl   $0x0,-0x1c(%rbp)
         :                      int ret;
         :
         :                      for (i = 0; i < loops; i++) {
    0.00 :       48a99b:       movl   $0x0,-0x18(%rbp)

It makes bigger different when displaying script sources, where the
comment lines looks oddly shifted from the lines which actually hold
code. I'll send script support separately.

Committer note:

Do not use a fixed column width for the addresses, as kernel ones se
more than 10 columns, look at the last offset and get the right width.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-36-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:50 -03:00
Jiri Olsa a5433b3ec9 perf annotate browser: Add disasm_line__write function
Factor disasm_line__write function from annotate_browser__write, which
now keeps only generic display code.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-35-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:49 -03:00
Jiri Olsa ec03a77d7d perf annotate browser: Use struct annotation_line in browser top
Use struct annotation_line in browser:🅱️:top.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-34-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:49 -03:00
Jiri Olsa 9213afbdf9 perf annotate browser: Use struct annotation_line in find functions
Use struct annotation_line in find functions:

  annotate_browser__find_string
  annotate_browser__find_string_reverse

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-33-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:48 -03:00
Jiri Olsa a5ef27020b perf annotate browser: Use struct annotation_line in browser_line
Using struct annotation_line arg in browser_line
function to make it generic.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-32-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:48 -03:00
Jiri Olsa e1b60b5bd3 perf annotate browser: Change offsets to struct annotation_line
Use struct annotation_line as a browser::offsets array entry.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-31-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:47 -03:00
Jiri Olsa 7bcbcd589b perf annotate browser: Change selection to struct annotation_line
Use struct annotation_line as a browser::selection.

We want to be able to use the annotate_browser for all sorts of source
data, so it needs to be able to work over the generic struct
annotation_line.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171106105617.GC20858@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:47 -03:00
Jiri Olsa daf25d4303 perf annotate browser: Rename disasm_line__browser to browser_line
Rename disasm_line__browser function to browser_line, because the browser got
generic and is no longer disasm specific.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171106105552.GB20858@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:46 -03:00
Jiri Olsa 0d9579701f perf annotate browser: Rename struct browser_disasm_line to browser_line
Rename struct browser_disasm_line to browser_line, because the browser
operates now on generic lines and no longer on disasm lines.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171106105536.GA20858@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:46 -03:00
Jiri Olsa b15636c62f perf annotate browser: Do not pass nr_events in disasm_rb_tree__insert
We now keep samples_nr in struct annotation_line, so there's no need to
pass nr_events to disasm_rb_tree__insert function.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-27-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:45 -03:00
Jiri Olsa 3ab6db8d0f perf annotate browser: Use samples data from struct annotation_line
We now carry the data in 'struct annotation_line', so using it instead
of samples from 'struct browser_disasm_line' and removing it and its
setup.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-26-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:45 -03:00
Jiri Olsa 29971f9a82 perf annotate: Factor annotation_line__print from disasm_line__print
Move generic annotation line display code into annotation_line__print
function.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-25-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:44 -03:00
Jiri Olsa 8f25b8197d perf annotate: Add annotation_line__print function
Separating struct annotation_line display function, it will hold the
generic line display code.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-24-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:44 -03:00
Jiri Olsa fa1924eb4a perf annotate: Remove struct source_line
Remove struct source_line*, no longer needed.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-23-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:49:44 -03:00
Jiri Olsa 81e436a0b3 perf annotate: Remove disasm__calc_percent function
Remove disasm__calc_percent() function, because it's no longer needed.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-22-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-16 14:46:14 -03:00