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b57334b945
linux-next/tools/perf/util
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Jiri Olsa b57334b945 perf machine: Use last_match threads cache only in single thread mode 
There's an issue with using threads::last_match in multithread mode
which is enabled during the perf top synthesize. It might crash with
following assertion:

  perf: ...include/linux/refcount.h:109: refcount_inc:
        Assertion `!(!refcount_inc_not_zero(r))' failed.

The gdb backtrace looks like this:

  0x00007ffff50839fb in raise () from /lib64/libc.so.6
  (gdb)
  #0  0x00007ffff50839fb in raise () from /lib64/libc.so.6
  #1  0x00007ffff5085800 in abort () from /lib64/libc.so.6
  #2  0x00007ffff507c0da in __assert_fail_base () from /lib64/libc.so.6
  #3  0x00007ffff507c152 in __assert_fail () from /lib64/libc.so.6
  #4  0x0000000000535ff9 in refcount_inc (r=0x7fffe8009a70)
      at ...include/linux/refcount.h:109
  #5  0x0000000000536771 in thread__get (thread=0x7fffe8009a40)
      at util/thread.c:115
  #6  0x0000000000523cd0 in ____machine__findnew_thread (machine=0xbfde38,
      threads=0xbfdf28, pid=2, tid=2, create=true) at util/machine.c:432
  #7  0x0000000000523eb4 in __machine__findnew_thread (machine=0xbfde38,
      pid=2, tid=2) at util/machine.c:489
  #8  0x0000000000523f24 in machine__findnew_thread (machine=0xbfde38,
      pid=2, tid=2) at util/machine.c:499
  #9  0x0000000000526fbe in machine__process_fork_event (machine=0xbfde38,
  ...

The failing assertion is this one:

  REFCOUNT_WARN(!refcount_inc_not_zero(r), ...

the problem is that we don't serialize access to threads::last_match.
We serialize the access to the threads tree, but we don't care how's
threads::last_match being accessed. Both locked/unlocked paths use
that data and can set it. In multithreaded mode we can end up with
invalid object in thread__get call, like in following paths race:

  thread 1
    ...
    machine__findnew_thread
      down_write(&threads->lock);
      __machine__findnew_thread
        ____machine__findnew_thread
          th = threads->last_match;
          if (th->tid == tid) {
            thread__get

  thread 2
    ...
    machine__find_thread
      down_read(&threads->lock);
      __machine__findnew_thread
        ____machine__findnew_thread
          th = threads->last_match;
          if (th->tid == tid) {
            thread__get

  thread 3
    ...
    machine__process_fork_event
      machine__remove_thread
        __machine__remove_thread
          threads->last_match = NULL
          thread__put
      thread__put

Thread 1 and 2 might got stale last_match, before thread 3 clears
it. Thread 1 and 2 then race with thread 3's thread__put and they
might trigger the refcnt == 0 assertion above.

The patch is disabling the last_match cache for multiple thread
mode. It was originally meant for single thread scenarios, where
it's common to have multiple sequential searches of the same
thread.

In multithread mode this does not make sense, because top's threads
processes different /proc entries and so the 'struct threads' object
is queried for various threads. Moreover we'd need to add more locks
to make it work.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Lukasz Odzioba <lukasz.odzioba@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20180719143345.12963-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-24 14:53:52 -03:00
..
c++ perf tools: Fix a clang 7.0 compilation error 2018-06-25 11:59:37 -03:00
cs-etm-decoder perf cs-etm: Introduce invalid address macro 2018-07-24 14:48:22 -03:00
include License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel-pt-decoder perf intel-pt: Fix packet decoding of CYC packets 2018-06-25 11:59:36 -03:00
libunwind License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scripting-engines perf script python: Fix dict reference counting 2018-07-11 09:45:24 -04:00
annotate.c perf annnotate: Make __symbol__inc_addr_samples handle src->histograms == NULL 2018-06-06 12:52:08 -03:00
annotate.h perf annotate: Move objdump_path to struct annotation_options 2018-06-04 10:28:53 -03:00
arm-spe-pkt-decoder.c perf tools: Add ARM Statistical Profiling Extensions (SPE) support 2018-01-17 10:23:31 -03:00
arm-spe-pkt-decoder.h perf tools: Add ARM Statistical Profiling Extensions (SPE) support 2018-01-17 10:23:31 -03:00
arm-spe.c perf tools: Add ARM Statistical Profiling Extensions (SPE) support 2018-01-17 10:23:31 -03:00
arm-spe.h perf tools: Add ARM Statistical Profiling Extensions (SPE) support 2018-01-17 10:23:31 -03:00
auxtrace.c perf tools: Use kallsyms__is_function() 2018-04-26 13:47:14 -03:00
auxtrace.h perf auxtrace: Add missing parameters from kernel-doc comments 2018-03-07 10:22:26 -03:00
block-range.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block-range.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bpf-loader.c perf bpf: Fix NULL return handling in bpf__prepare_load() 2018-05-30 15:35:31 -03:00
bpf-loader.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bpf-prologue.c docs: Fix some broken references 2018-06-15 18:10:01 -03:00
bpf-prologue.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
branch.c perf util: Create branch.c/.h for common branch functions 2017-07-18 23:14:40 -03:00
branch.h perf report: Tag branch type/flag on "to" and tag cycles on "from" 2017-07-25 22:46:35 -03:00
Build perf tools: Remove dead quote.[ch] code 2018-06-04 10:28:50 -03:00
build-id.c perf thread: Make thread__find_map() return the map 2018-04-26 13:47:08 -03:00
build-id.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
call-path.c perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
call-path.h perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
callchain.c perf unwind: Do not look just at the global callchain_param.record_mode 2018-01-17 10:23:32 -03:00
callchain.h perf unwind: Do not look just at the global callchain_param.record_mode 2018-01-17 10:23:32 -03:00
cgroup.c perf cgroup: Make evlist__find_cgroup() more compact 2018-06-04 10:28:50 -03:00
cgroup.h perf cgroup: Make the cgroup name be const char * 2018-03-07 10:22:26 -03:00
cloexec.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cloexec.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
color.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
color.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
comm.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
comm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compress.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
config.c perf config: Call perf_config__init() lazily 2018-05-16 16:11:09 -03:00
config.h perf config: Call perf_config__init() lazily 2018-05-16 16:11:09 -03:00
counts.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
counts.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpumap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cpumap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cs-etm.c perf cs-etm: Bail out immediately for instruction sample failure 2018-07-24 14:48:32 -03:00
cs-etm.h coresight: Move to SPDX identifier 2018-04-19 12:29:41 -03:00
ctype.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
data-convert-bt.c perf tools: Add struct perf_data_file 2017-10-30 13:37:37 -03:00
data-convert-bt.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
data-convert.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
data.c perf tools: Move conditional O_CLOEXEC to util.h 2018-01-23 09:48:20 -03:00
data.h Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
db-export.c perf symbols: Unify symbol maps 2018-04-27 10:47:06 -03:00
db-export.h perf script: Add call path id to exported sample in db export 2016-05-06 13:00:53 -03:00
debug.c perf debug: Avoid setting 'quiet' to 'true' unnecessarily 2018-03-16 16:39:02 -03:00
debug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
demangle-java.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
demangle-java.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
demangle-rust.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
demangle-rust.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drv_configs.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
drv_configs.h perf pmu: Push configuration down to PMU driver 2016-09-22 12:19:41 -03:00
dso.c perf tools: Fix symbol and object code resolution for vdso32 and vdsox32 2018-06-06 12:52:04 -03:00
dso.h perf symbols: Unify symbol maps 2018-04-27 10:47:06 -03:00
dump-insn.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dump-insn.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dwarf-aux.c perf config: Rename to HAVE_DWARF_GETLOCATIONS_SUPPORT 2018-04-02 13:50:24 -03:00
dwarf-aux.h perf probe: Match linkage name with mangled name 2016-09-29 11:17:08 -03:00
dwarf-regs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
env.c perf machine: Add nr_cpus_avail() 2018-05-22 10:52:49 -03:00
env.h perf machine: Add nr_cpus_avail() 2018-05-22 10:52:49 -03:00
event.c perf machine: Synthesize and process mmap events for x86 PTI entry trampolines 2018-05-23 10:26:39 -03:00
event.h perf machine: Synthesize and process mmap events for x86 PTI entry trampolines 2018-05-23 10:26:39 -03:00
evlist.c perf evlist: Introduce force_leader() method 2018-05-21 14:40:54 -03:00
evlist.h perf evlist: Introduce force_leader() method 2018-05-21 14:40:54 -03:00
evsel_fprintf.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
evsel.c perf evsel: Add has_callchain() helper to make code more compact/clear 2018-06-05 10:09:54 -03:00
evsel.h perf evsel: Add has_callchain() helper to make code more compact/clear 2018-06-05 10:09:54 -03:00
expr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
expr.y perf tools: Dedup events in expression parsing 2017-08-22 12:19:08 -03:00
find-vdso-map.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
genelf_debug.c tools: Adopt __packed from kernel sources 2017-06-19 15:27:07 -03:00
genelf.c perf tools: Fix spelling mistake: "builid" -> "buildid" 2018-04-30 12:02:03 -03:00
genelf.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
generate-cmdlist.sh perf tools: Rename HAVE_SYSCALL_TABLE to HAVE_SYSCALL_TABLE_SUPPORT 2018-04-12 10:33:31 -03:00
group.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
header.c perf tools: Synthesize GROUP_DESC feature in pipe mode 2018-07-24 14:53:20 -03:00
header.h perf tools: Add MEM_TOPOLOGY feature to perf data file 2018-03-08 11:30:46 -03:00
help-unknown-cmd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
help-unknown-cmd.h perf tools: Move help_unknown_cmd() to its own file 2015-12-14 12:30:37 -03:00
hist.c perf hists: Reimplement hists__has_callchains() 2018-06-07 14:42:27 -03:00
hist.h perf hists: Clarify callchain disabling when available 2018-07-24 14:37:33 -03:00
intel-bts.c perf thread: Make thread__find_map() return the map 2018-04-26 13:47:08 -03:00
intel-bts.h
intel-pt.c perf intel-pt: Fix "Unexpected indirect branch" error 2018-06-06 12:52:08 -03:00
intel-pt.h perf intel-pt: Record address filter in AUXTRACE_INFO event 2016-09-29 11:17:05 -03:00
intlist.c
intlist.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
jit.h Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
jitdump.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
jitdump.h perf jit: Add unwinding support 2016-10-24 11:07:39 -03:00
kvm-stat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
levenshtein.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
levenshtein.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
llvm-utils.c perf llvm-utils: Remove bashism from kernel include fetch script 2018-07-11 10:01:51 -03:00
llvm-utils.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lzma.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
machine.c perf machine: Use last_match threads cache only in single thread mode 2018-07-24 14:53:52 -03:00
machine.h perf machine: Create maps for x86 PTI entry trampolines 2018-05-23 10:24:08 -03:00
map.c perf map: Consider PTI entry trampolines in rip_2objdump() 2018-06-06 12:52:06 -03:00
map.h perf srcline: Introduce map__srcline() to make code more compact 2018-06-04 10:28:52 -03:00
mem2node.c perf tools: Add mem2node object 2018-03-16 13:52:37 -03:00
mem2node.h perf tools: Add mem2node object 2018-03-16 13:52:37 -03:00
mem-events.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mem-events.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memswap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
memswap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
metricgroup.c perf stat: Add transaction flag (-T) support for s390 2018-07-24 14:49:37 -03:00
metricgroup.h perf stat: Add transaction flag (-T) support for s390 2018-07-24 14:49:37 -03:00
mmap.c perf mmap: Be consistent when checking for an unmaped ring buffer 2018-03-27 13:13:38 -03:00
mmap.h perf mmap: Simplify perf_mmap__read_init() 2018-03-08 10:05:53 -03:00
namespaces.c perf tools: Make copyfile_offset() static 2017-09-13 09:49:16 -03:00
namespaces.h perf namespaces: Add more appropriate set of headers 2017-10-23 16:30:54 -03:00
ordered-events.c perf ordered_events: Pass timestamp arg in perf_session__queue_event 2017-11-17 12:14:09 -03:00
ordered-events.h perf ordered_events: Pass timestamp arg in perf_session__queue_event 2017-11-17 12:14:09 -03:00
parse-branch-options.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parse-branch-options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parse-events.c perf parse-events: Handle uncore event aliases in small groups properly 2018-05-30 10:40:44 -03:00
parse-events.h perf parse-events: Handle uncore event aliases in small groups properly 2018-05-30 10:40:44 -03:00
parse-events.l perf record: Enable arbitrary event names thru name= modifier 2018-06-06 12:52:04 -03:00
parse-events.y perf tools: Fix error index for pmu event parser 2018-06-07 15:50:14 -03:00
parse-regs-options.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
parse-regs-options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
path.c perf utils: Move is_directory() to path.h 2017-12-27 12:15:48 -03:00
path.h perf utils: Move is_directory() to path.h 2017-12-27 12:15:48 -03:00
perf_regs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf_regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-hooks-list.h perf tools: Introduce perf hooks 2016-11-29 12:13:27 -03:00
perf-hooks.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-hooks.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
PERF-VERSION-GEN License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pmu.c Revert "perf list: Add s390 support for detailed/verbose PMU event description" 2018-07-24 14:48:58 -03:00
pmu.h perf pmu: Pass pmu as a parameter to get_cpuid_str() 2017-12-05 10:24:33 -03:00
pmu.l
pmu.y
print_binary.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
print_binary.h Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
probe-event.c perf probe: Use return of map__get() to make code more compact 2018-06-04 10:28:50 -03:00
probe-event.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
probe-file.c tools lib api: Unexport 'tracing_path' variable 2018-05-16 16:27:14 -03:00
probe-file.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
probe-finder.c perf probe: Use right type to access array elements 2018-03-19 13:51:53 -03:00
probe-finder.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pstack.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pstack.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
python-ext-sources perf evsel: Fix swap for samples with raw data 2017-12-27 12:15:56 -03:00
python.c perf python: Reference Py_None before returning it 2018-03-23 16:45:20 -03:00
rb_resort.h Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
rblist.c perf rblist: Create rblist__exit() function 2017-12-05 10:24:31 -03:00
rblist.h perf rblist: Create rblist__exit() function 2017-12-05 10:24:31 -03:00
record.c perf record: Fix crash in pipe mode 2018-03-05 11:52:41 -03:00
rwsem.c perf tools: Provide mutex wrappers for pthreads rwlocks 2017-09-21 13:28:06 -03:00
rwsem.h perf tools: Provide mutex wrappers for pthreads rwlocks 2017-09-21 13:28:06 -03:00
sane_ctype.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
session.c perf evsel: Add has_callchain() helper to make code more compact/clear 2018-06-05 10:09:54 -03:00
session.h perf/core improvements and fixes: 2017-11-18 08:59:27 +01:00
setns.c tools build: Add test for setns() 2017-07-18 23:14:08 -03:00
setup.py perf tools: Fix python extension build for gcc 8 2018-03-19 13:39:46 -03:00
smt.c perf tools: Add utility function to detect SMT status 2017-08-22 12:09:04 -03:00
smt.h perf tools: Add utility function to detect SMT status 2017-08-22 12:09:04 -03:00
sort.c perf srcline: Make hist_entry srcline helper consistent with map's 2018-06-04 10:28:53 -03:00
sort.h perf hists: Make hist_entry__has_callchains() work with 'perf c2c' 2018-06-07 14:27:19 -03:00
srcline.c perf symbols: Store the ELF symbol type in the symbol struct 2018-04-26 13:47:18 -03:00
srcline.h perf report: Fix a wrong offset issue when using /proc/kcore 2018-01-08 11:11:57 -03:00
stat-shadow.c perf stat: Remove a set of shadow stats static variables 2017-12-27 12:15:44 -03:00
stat.c perf stat: Make function perf_stat_evsel_id_init static 2018-03-16 13:56:17 -03:00
stat.h perf stat: Add --table option to display time of each run 2018-04-26 09:30:27 -03:00
strbuf.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
strbuf.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
strfilter.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
strfilter.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
string2.h perf string: Add {strdup,strpbrk}_esc() 2017-12-27 12:15:55 -03:00
string.c perf string: Add {strdup,strpbrk}_esc() 2017-12-27 12:15:55 -03:00
strlist.c perf tools: Remove string.h, unistd.h and sys/stat.h from util.h 2017-04-24 13:43:33 -03:00
strlist.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
svghelper.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
svghelper.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
symbol_fprintf.c perf symbols: Unify symbol maps 2018-04-27 10:47:06 -03:00
symbol-elf.c perf kcore_copy: Amend the offset of sections that remap kernel text 2018-05-23 10:26:44 -03:00
symbol-minimal.c perf symbols: Unify symbol maps 2018-04-27 10:47:06 -03:00
symbol.c perf symbols: Add BSS symbols when reading from /proc/kallsyms 2018-06-06 12:52:09 -03:00
symbol.h perf annotate: Adopt anotation options from symbol_conf 2018-06-04 10:28:53 -03:00
syscalltbl.c perf trace arm64: Use generated syscall table 2018-07-24 14:53:01 -03:00
syscalltbl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target.c perf target: str_error_r() always returns the buffer it receives 2016-07-29 11:54:35 -03:00
target.h perf stat: Remove --per-thread pid/tid limitation 2017-12-27 12:15:47 -03:00
term.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
term.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
thread_map.c perf stat: Ignore error thread when enabling system-wide --per-thread 2018-02-27 11:29:21 -03:00
thread_map.h perf stat: Ignore error thread when enabling system-wide --per-thread 2018-02-27 11:29:21 -03:00
thread-stack.c perf tools: Include errno.h where needed 2017-04-19 13:01:51 -03:00
thread-stack.h perf script: Add callindent option 2016-06-23 17:04:26 -03:00
thread.c perf symbols: Unify symbol maps 2018-04-27 10:47:06 -03:00
thread.h perf thread: Make thread__find_map() search all maps 2018-04-26 13:47:17 -03:00
time-utils.c perf util: Allocate time slices buffer according to number of comma 2018-01-17 10:23:36 -03:00
time-utils.h perf util: Allocate time slices buffer according to number of comma 2018-01-17 10:23:36 -03:00
tool.h perf tools: Make the tool's warning messages optional 2018-01-10 12:00:55 -03:00
top.c
top.h perf annotate stdio: Use annotation_options consistently 2018-06-04 10:28:52 -03:00
trace-event-info.c tools lib api fs tracing_path: Introduce get/put_events_file() helpers 2018-05-17 12:01:50 -03:00
trace-event-parse.c perf event-parse: Use pr_warning() 2017-06-27 11:08:14 -03:00
trace-event-read.c perf tools: Provide mutex wrappers for pthreads rwlocks 2017-09-21 13:28:06 -03:00
trace-event-scripting.c perf script: Use HAVE_LIBXXX_SUPPORT to replace NO_LIBXXX 2018-04-12 10:33:29 -03:00
trace-event.c perf parse-events: Use get/put_events_file() 2018-05-17 14:49:36 -03:00
trace-event.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trigger.h perf tools: Fix trigger class trigger_on() 2018-03-06 11:31:14 -03:00
tsc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tsc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
units.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
units.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unwind-libdw.c perf script: Show correct offsets for DWARF-based unwinding 2018-07-24 14:53:11 -03:00
unwind-libdw.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unwind-libunwind-local.c perf script: Show correct offsets for DWARF-based unwinding 2018-07-24 14:53:11 -03:00
unwind-libunwind.c perf env: Adopt perf_env__arch() from the annotate code 2017-12-27 12:15:52 -03:00
unwind.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usage.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
util-cxx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
util.c perf tools: No need to unconditionally read the max_stack sysctls 2018-05-17 16:31:32 -03:00
util.h perf tools: No need to unconditionally read the max_stack sysctls 2018-05-17 16:31:32 -03:00
values.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
values.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso.c perf map: Remove enum_type arg to map_groups__first() 2018-04-26 13:47:15 -03:00
vdso.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xyarray.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xyarray.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
zlib.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00