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linux-stable/tools/perf/util
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James Clark 0323dea318 perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events() 
Currently, timeless mode starts the decode on PERF_RECORD_EXIT, and
non-timeless mode starts decoding on the fist PERF_RECORD_AUX record.

This can cause the "data has no samples!" error if the first
PERF_RECORD_AUX record comes before the first (or any relevant)
PERF_RECORD_MMAP2 record because the mmaps are required by the decoder
to access the binary data.

This change pushes the start of non-timeless decoding to the very end of
parsing the file. The PERF_RECORD_EXIT event can't be used because it
might not exist in system-wide or snapshot modes.

I have not been able to find the exact cause for the events to be
intermittently in the wrong order in the basic scenario:

	perf record -e cs_etm/@tmc_etr0/u top

But it can be made to happen every time with the --delay option. This is
because "enable_on_exec" is disabled, which causes tracing to start
before the process to be launched is exec'd. For example:

	perf record -e cs_etm/@tmc_etr0/u --delay=1 top
	perf report -D | grep 'AUX\|MAP'

	0 16714475632740 0x520 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x30 flags: 0 []
	0 16714476494960 0x5d0 [0x40]: PERF_RECORD_AUX offset: 0x30 size: 0x30 flags: 0 []
	0 16714478208900 0x660 [0x40]: PERF_RECORD_AUX offset: 0x60 size: 0x30 flags: 0 []
	4294967295 16714478293340 0x700 [0x70]: PERF_RECORD_MMAP2 8712/8712: [0x557a460000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top
	4294967295 16714478353020 0x770 [0x88]: PERF_RECORD_MMAP2 8712/8712: [0x7f86f72000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so

Another scenario in which decoding from the first aux record fails is a
workload that forks. Although the aux record comes after 'bash', it
comes before 'top', which is what we are interested in. For example:

	perf record -e cs_etm/@tmc_etr0/u -- bash -c top
	perf report -D | grep 'AUX\|MAP'

	4294967295 16853946421300 0x510 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x558f280000(0x142000) @ 0 00:17 5213953 0]: r-xp /usr/bin/bash
	4294967295 16853946543560 0x580 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba6e000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so
	4294967295 16853946628420 0x608 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba9e000(0x1000) @ 0 00:00 0 0]: r-xp [vdso]
	0 16853947067300 0x690 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x3a60 flags: 0 []
	...
	0 16853966602580 0x1758 [0x40]: PERF_RECORD_AUX offset: 0xc2470 size: 0x30 flags: 0 []
	4294967295 16853967119860 0x1818 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x5559e70000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top
	4294967295 16853967181620 0x1888 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed06000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so
	4294967295 16853967237180 0x1910 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed36000(0x1000) @ 0 00:00 0 0]: r-xp [vdso]

A third scenario is when the majority of time is spent in a shared
library that is not loaded at startup. For example a dynamically loaded
plugin.

Testing
=======

Testing was done by checking if any samples that are present in the
old output are missing from the new output. Timestamps must be
stripped out with awk because now they are set to the last AUX sample,
rather than the first:

	./perf script $4 | awk '!($4="")' > new.script
	./perf-default script $4 | awk '!($4="")' > default.script
	comm -13 <(sort -u new.script) <(sort -u default.script)

Testing showed that the new output is a superset of the old. When lines
appear in the comm output, it is not because they are missing but
because [unknown] is now resolved to sensible locations. For example
last putp branch here now resolves to libtinfo, so it's not missing
from the output, but is actually improved:

Old:
	top 305 [001]  1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps)
	top 305 [001]  1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps)
	top 305 [001]  1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) => 0 [unknown] ([unknown])
New:
	top 305 [001]  1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps)
	top 305 [001]  1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps)
	top 305 [001]  1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) => 7f8ab39208 putp+0x0 (/lib/libtinfo.so.5.9)

In the following two modes, decoding now works and the "data has no
samples!" error is not displayed any more:

	perf record -e cs_etm/@tmc_etr0/u -- bash -c top
	perf record -e cs_etm/@tmc_etr0/u --delay=1 top

In snapshot mode, there is also an improvement to decoding. Previously
samples for the 'kill' process that was used to send SIGUSR2 were
completely missing, because the process hadn't started yet. But now
there are additional samples present:

	perf record -e cs_etm/@tmc_etr0/u --snapshot -a
	perf script

		stress 19380 [003] 161627.938153:    1000000    instructions:uH:      aaaabb612fb4 [unknown] (/usr/bin/stress)
		  kill 19644 [000] 161627.938153:    1000000    instructions:uH:      ffffae0ef210 [unknown] (/lib/aarch64-linux-gnu/ld-2.27.so)
		stress 19380 [003] 161627.938153:    1000000    instructions:uH:      ffff9e754d40 random_r+0x20 (/lib/aarch64-linux-gnu/libc-2.27.so)

Also tested was the round trip of 'perf inject' followed by 'perf
report' which has the same differences and improvements.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Branislav Rankov <branislav.rankov@arm.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210609130421.13934-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-07-01 16:14:37 -03:00
..
arm-spe-decoder perf arm-spe: Avoid potential buffer overrun 2021-04-07 16:23:20 -03:00
bpf_skel perf stat: Introduce 'bperf' to share hardware PMCs with BPF 2021-03-23 17:46:44 -03:00
c++ perf clang: Fix build with Clang 9 2020-01-14 12:02:19 -03:00
cs-etm-decoder perf cs-etm: Prevent and warn on underflows during timestamp calculation. 2021-05-17 11:06:56 -03:00
include tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' 2020-11-12 17:55:41 -03:00
intel-pt-decoder Merge remote-tracking branch 'torvalds/master' into perf/core 2021-05-25 09:13:52 -03:00
libunwind perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
scripting-engines perf scripting python: Assign perf_script_context 2021-06-01 10:03:33 -03:00
affinity.c perf affinity: Add infrastructure to save/restore affinity 2019-11-28 08:08:38 -03:00
affinity.h perf affinity: Add infrastructure to save/restore affinity 2019-11-28 08:08:38 -03:00
annotate.c perf annotate: Add line number like in TUI and source location at EOL 2021-04-20 08:40:20 -03:00
annotate.h perf annotate: Show full source location with 'l' hotkey 2021-03-06 16:42:31 -03:00
archinsn.h
arm-spe.c perf arm-spe: Don't wait for PERF_RECORD_EXIT event 2021-07-01 16:14:36 -03:00
arm-spe.h
auxtrace.c perf auxtrace: Factor out itrace_do_parse_synth_opts() 2021-06-01 10:04:10 -03:00
auxtrace.h perf auxtrace: Change to use SMP memory barriers 2021-06-08 13:45:04 -03:00
block-info.c perf report: Fix wrong LBR block sorting 2021-04-07 16:18:49 -03:00
block-info.h perf block-info: Allow selecting which columns to report and its order 2020-03-09 21:43:25 -03:00
block-range.c
block-range.h
bpf-event.c perf top: Fix BPF support related crash with perf_event_paranoid=3 + kptr_restrict 2021-03-16 10:01:44 -03:00
bpf-event.h perf bpf: Decouple creating the evlist from adding the SB event 2020-05-05 16:35:29 -03:00
bpf-loader.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
bpf-loader.h perf bpf: Enclose libbpf.h include within HAVE_LIBBPF_SUPPORT 2020-11-04 09:42:40 -03:00
bpf-prologue.c perf bpf: Fix bpf prologue generation 2020-06-09 12:40:04 -03:00
bpf-prologue.h
bpf_counter.c perf bpf_counter: Move common functions to bpf_counter.h 2021-07-01 16:14:19 -03:00
bpf_counter.h perf bpf_counter: Move common functions to bpf_counter.h 2021-07-01 16:14:19 -03:00
bpf_map.c
bpf_map.h
branch.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
branch.h perf branch: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
Build perf parse-events: Add bison --file-prefix-map option 2021-05-27 13:55:28 -03:00
build-id.c perf buildid-cache: Don't skip 16-byte build-ids 2021-02-18 16:41:40 -03:00
build-id.h perf buildid-cache: Don't skip 16-byte build-ids 2021-02-18 16:41:40 -03:00
cache.h
cacheline.c perf tools: Remove perf.h from source files not needing it 2019-08-29 17:38:32 -03:00
cacheline.h perf cacheline: Move cacheline related routines to separate files 2019-08-26 11:58:29 -03:00
call-path.c perf tools: Use list_del_init() more thorougly 2019-07-09 10:13:27 -03:00
call-path.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
callchain.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
callchain.h perf streams: Report hot streams 2020-10-14 13:34:26 -03:00
cap.c perf tools: Add helpers to use capabilities if present 2019-08-14 10:48:39 -03:00
cap.h perf tools: Support CAP_PERFMON capability 2020-04-16 12:19:08 -03:00
cgroup.c perf tools: Add cgroup_is_v2() helper 2021-07-01 15:00:33 -03:00
cgroup.h perf tools: Add cgroup_is_v2() helper 2021-07-01 15:00:33 -03:00
clockid.c perf tools: Add clockid_name function 2020-08-06 09:33:57 -03:00
clockid.h perf tools: Add clockid_name function 2020-08-06 09:33:57 -03:00
cloexec.c perf tool: Make perf tool aware of SELinux access control 2020-05-28 10:03:26 -03:00
cloexec.h
color.c perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
color.h
color_config.c perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
comm.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
comm.h
compress.h perf report: Implement perf.data record decompression 2019-05-15 16:36:49 -03:00
config.c perf stat: Introduce config stat.bpf-counter-events 2021-04-29 10:30:58 -03:00
config.h perf config: Make perf_config_global() global 2021-01-20 14:34:21 -03:00
copyfile.c perf tools: Fix mode setting in copyfile_mode_ns() 2019-10-15 12:05:18 -03:00
copyfile.h perf copyfile: Move copyfile routines to separate files 2019-09-25 09:51:49 -03:00
counts.c perf counts: Reset prev_raw_counts counts 2020-05-28 10:03:27 -03:00
counts.h perf counts: Reset prev_raw_counts counts 2020-05-28 10:03:27 -03:00
cpu-set-sched.h
cpumap.c perf stat aggregation: Add separate thread member 2020-12-24 10:05:28 -03:00
cpumap.h perf stat aggregation: Add separate thread member 2020-12-24 10:05:28 -03:00
cputopo.c perf header: Support HYBRID_TOPOLOGY feature 2021-05-17 10:55:10 -03:00
cputopo.h perf header: Support HYBRID_TOPOLOGY feature 2021-05-17 10:55:10 -03:00
cs-etm.c perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events() 2021-07-01 16:14:37 -03:00
cs-etm.h perf cs-etm: Refactor timestamp variable names 2021-05-12 15:47:04 -03:00
data-convert-bt.c perf data: Add JSON export 2021-04-29 10:30:58 -03:00
data-convert-json.c perf data: Add JSON export 2021-04-29 10:30:58 -03:00
data-convert.h perf data: Add JSON export 2021-04-29 10:30:58 -03:00
data.c perf inject: Add facility to do in place update 2021-05-12 12:43:10 -03:00
data.h perf inject: Add facility to do in place update 2021-05-12 12:43:10 -03:00
db-export.c perf scripting python: Add 'addr_location' for 'addr' 2021-05-25 10:07:17 -03:00
db-export.h perf scripting python: Add 'addr_location' for 'addr' 2021-05-25 10:07:17 -03:00
debug.c perf debug: Add debug_set_display_time function 2021-01-20 14:34:20 -03:00
debug.h perf debug: Add debug_set_display_time function 2021-01-20 14:34:20 -03:00
demangle-java.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
demangle-java.h
demangle-ocaml.c perf tools: Preserve identifier id in OCaml demangler 2021-03-30 12:45:59 -03:00
demangle-ocaml.h perf tools: Add OCaml demangling 2021-02-17 15:15:06 -03:00
demangle-rust.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
demangle-rust.h
dso.c perf tools: Add filename__decompress function 2020-11-27 08:36:53 -03:00
dso.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
dsos.c perf tools: Align buildid list output for short build ids 2020-10-14 11:28:52 -03:00
dsos.h perf dso: Move dso_id from 'struct map' to 'struct dso' 2019-11-19 19:12:26 -03:00
dump-insn.c
dump-insn.h
dwarf-aux.c perf probe: Fix NULL pointer dereference in convert_variable_location() 2021-06-01 10:11:24 -03:00
dwarf-aux.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
dwarf-regs.c perf tools: Support MIPS unwinding and dwarf-regs 2021-03-01 14:47:50 -03:00
env.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-06-22 13:56:50 -03:00
env.h perf header: Support HYBRID_CPU_PMU_CAPS feature 2021-05-17 10:58:10 -03:00
event.c perf script: Support filtering by hex address 2021-02-08 17:09:11 -03:00
event.h perf script: Add missing PERF_IP_FLAG_CHARS for VM-Entry and VM-Exit 2021-05-21 16:41:37 -03:00
events_stats.h perf report: Add --skip-empty option to suppress 0 event stat 2021-04-29 10:30:59 -03:00
evlist-hybrid.c perf stat: Warn group events from different hybrid PMU 2021-04-29 10:30:59 -03:00
evlist-hybrid.h perf stat: Warn group events from different hybrid PMU 2021-04-29 10:30:59 -03:00
evlist.c perf mem: Disable 'mem-loads-aux' group before reporting 2021-06-01 11:06:01 -03:00
evlist.h perf mem: Disable 'mem-loads-aux' group before reporting 2021-06-01 11:06:01 -03:00
evsel.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-06-22 13:56:50 -03:00
evsel.h perf evsel: Add missing cloning of evsel->use_config_name 2021-06-04 10:04:20 -03:00
evsel_config.h perf evsel: Rename *perf_evsel__get_config_term() & friends to evsel__env() 2020-05-28 10:03:24 -03:00
evsel_fprintf.c perf tools: Add 'evlist' control command 2021-01-20 14:34:21 -03:00
evsel_fprintf.h perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf() 2020-05-28 10:03:24 -03:00
evswitch.c perf evlist: Use the right prefix for 'struct evlist' 'find' methods 2020-11-30 09:48:07 -03:00
evswitch.h perf evswitch: Introduce init() method to set the on/off evsels from the command line 2019-08-15 12:25:55 -03:00
expr.c perf expr: Force encapsulation on expr_id_data 2020-11-16 14:09:18 -03:00
expr.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
expr.l perf expr: Add < and > operators 2020-06-22 16:28:09 -03:00
expr.y perf expr: Force encapsulation on expr_id_data 2020-11-16 14:09:18 -03:00
find-map.c
fncache.c perf pmu: Use file system cache to optimize sysfs access 2019-11-28 08:08:38 -03:00
fncache.h perf pmu: Use file system cache to optimize sysfs access 2019-11-28 08:08:38 -03:00
genelf.c perf jit: Move test functionality in to a test 2019-11-29 12:20:45 -03:00
genelf.h perf jvmti: Include JVMTI support for s390 2019-09-25 16:26:41 -03:00
genelf_debug.c perf jit: Fix inaccurate DWARF line table 2020-05-29 16:51:38 -03:00
generate-cmdlist.sh
get_current_dir_name.c perf tools: Remove duplicate headers 2019-08-26 11:58:29 -03:00
get_current_dir_name.h perf tools: Move get_current_dir_name() cond prototype out of util.h 2019-07-09 10:13:26 -03:00
hashmap.c perf tools: Update copy of libbpf's hashmap.c 2020-11-03 08:26:55 -03:00
hashmap.h perf tools: Update copy of libbpf's hashmap.c 2020-11-27 14:19:33 -03:00
header.c perf header: Support HYBRID_CPU_PMU_CAPS feature 2021-05-17 10:58:10 -03:00
header.h perf header: Support HYBRID_CPU_PMU_CAPS feature 2021-05-17 10:58:10 -03:00
help-unknown-cmd.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
help-unknown-cmd.h
hist.c perf report: Add --skip-empty option to suppress 0 event stat 2021-04-29 10:30:59 -03:00
hist.h perf report: Add --skip-empty option to suppress 0 event stat 2021-04-29 10:30:59 -03:00
intel-bts.c perf evsel: Rename __perf_evsel__sample_size() to __evsel__sample_size() 2020-05-05 16:35:30 -03:00
intel-bts.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intel-pt.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-05-25 09:13:52 -03:00
intel-pt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intlist.c perf intlist: Change 'struct intlist' int member to 'unsigned long' 2021-02-08 17:02:00 -03:00
intlist.h perf intlist: Change 'struct intlist' int member to 'unsigned long' 2021-02-08 17:02:00 -03:00
iostat.c perf stat: Basic support for iostat in perf 2021-04-20 08:40:20 -03:00
iostat.h perf stat: Basic support for iostat in perf 2021-04-20 08:40:20 -03:00
jit.h perf inject jit: Add namespaces support 2021-02-03 13:10:44 -03:00
jitdump.c perf jit: Let convert_timestamp() to be backwards-compatible 2021-04-29 10:31:00 -03:00
jitdump.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
kvm-stat.h perf kvm: Add arch neutral function to choose event for perf kvm record 2019-09-20 10:28:26 -03:00
levenshtein.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
levenshtein.h
llvm-utils.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
llvm-utils.h perf tools: Remove debug.h from header files not needing it 2019-08-29 17:38:32 -03:00
lzma.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
machine.c perf machine: Fix refcount usage when processing PERF_RECORD_KSYMBOL 2021-06-19 10:06:46 -03:00
machine.h perf machine: Factor out machine__idle_thread() 2021-02-18 16:14:33 -03:00
map.c perf map: Fix error return code in maps__clone() 2021-04-23 16:03:09 -03:00
map.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
map_symbol.h perf sort: Add sort option for data page size 2020-12-19 17:52:24 -03:00
maps.h perf maps: Rename map_groups.h to maps.h 2019-11-26 11:07:46 -03:00
mem-events.c perf mem-events: Remove duplicate #undef 2021-06-16 15:05:24 -03:00
mem-events.h perf mem: Support record for hybrid platform 2021-06-01 11:04:59 -03:00
mem2node.c perf mem2node: Improve warning if detected no memory nodes 2020-11-04 09:42:40 -03:00
mem2node.h perf env: Remove env.h from other headers where just a fwd decl is needed 2019-08-31 19:10:40 -03:00
memswap.c
memswap.h perf memswap: Adopt 'struct u64_swap' from evsel.h 2019-09-20 09:19:22 -03:00
metricgroup.c perf metricgroup: Return error code from metricgroup__add_metric_sys_event_iter() 2021-06-19 10:06:46 -03:00
metricgroup.h perf metricgroup: Make find_metric() public with name change 2021-04-08 14:23:39 -03:00
mmap.c perf record: Fix binding of AIO user space buffers to nodes 2020-03-12 11:32:46 -03:00
mmap.h perf record: Adapt affinity to machines with #CPUs > 1K 2020-01-06 11:46:09 -03:00
namespaces.c perf inject jit: Add namespaces support 2021-02-03 13:10:44 -03:00
namespaces.h perf inject jit: Add namespaces support 2021-02-03 13:10:44 -03:00
ordered-events.c perf tools: Remove unneeded semicolons 2020-04-30 10:48:32 -03:00
ordered-events.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
parse-branch-options.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
parse-branch-options.h
parse-events-hybrid.c perf parse-events: Compare with hybrid pmu name 2021-04-29 10:30:59 -03:00
parse-events-hybrid.h perf parse-events: Compare with hybrid pmu name 2021-04-29 10:30:59 -03:00
parse-events.c perf parse-events: Check if the software events array slots are populated 2021-05-21 07:47:56 -03:00
parse-events.h perf parse-events: Compare with hybrid pmu name 2021-04-29 10:30:59 -03:00
parse-events.l perf tools: Add 'cgroup-switches' software event 2021-05-19 14:23:23 -03:00
parse-events.y perf parse-events: Compare with hybrid pmu name 2021-04-29 10:30:59 -03:00
parse-regs-options.c perf record: Fix memory leak when using '--user-regs=?' to list registers 2020-12-17 14:36:16 -03:00
parse-regs-options.h perf parse-regs: Split parse_regs 2019-05-15 16:36:49 -03:00
parse-sublevel-options.c perf tools: Add general function to parse sublevel options 2020-08-14 09:15:47 -03:00
parse-sublevel-options.h perf tools: Add general function to parse sublevel options 2020-08-14 09:15:47 -03:00
path.c perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
path.h perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
perf-hooks-list.h
perf-hooks.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
perf-hooks.h
PERF-VERSION-GEN perf version: Append 12 git SHA chars to the version string 2019-05-28 18:37:44 -03:00
perf_api_probe.c perf record: Move probing cgroup sampling support 2021-06-01 10:32:00 -03:00
perf_api_probe.h perf record: Move probing cgroup sampling support 2021-06-01 10:32:00 -03:00
perf_event_attr_fprintf.c perf tools: Support PERF_SAMPLE_WEIGHT_STRUCT 2021-02-08 16:25:00 -03:00
perf_regs.c perf tools: Avoid 'sample_reg_masks' being const + weak 2019-10-10 09:29:33 -03:00
perf_regs.h perf tools: Fix arm64 build error with gcc-11 2021-02-18 16:24:43 -03:00
pfm.c perf test: Fix libpfm4 support (63) test error for nested event groups 2021-05-19 10:30:37 -03:00
pfm.h perf tools: Add optional support for libpfm4 2020-05-29 16:51:38 -03:00
pmu-hybrid.c perf pmu: Add hybrid helper functions 2021-04-29 10:30:59 -03:00
pmu-hybrid.h perf header: Support HYBRID_TOPOLOGY feature 2021-05-17 10:55:10 -03:00
pmu.c perf pmu: Add hybrid helper functions 2021-04-29 10:30:59 -03:00
pmu.h perf pmu: Add hybrid helper functions 2021-04-29 10:30:59 -03:00
pmu.l
pmu.y
print_binary.c perf python scripting: Fix printable strings in python3 scripts 2020-10-01 12:10:56 -03:00
print_binary.h
probe-event.c perf probe: Add --bootconfig to output definition in bootconfig format 2021-06-18 13:50:05 -03:00
probe-event.h perf probe: Add --bootconfig to output definition in bootconfig format 2021-06-18 13:50:05 -03:00
probe-file.c perf probe: Provide clearer message permission error for tracefs access 2021-06-08 14:12:14 -03:00
probe-file.h perf probe: Support DW_AT_const_value constant value 2019-11-18 19:08:02 -03:00
probe-finder.c perf probe: Fix NULL pointer dereference in convert_variable_location() 2021-06-01 10:11:24 -03:00
probe-finder.h perf probe: Fall back to debuginfod query if debuginfo and source not found locally 2020-09-18 09:20:47 -03:00
pstack.c perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
pstack.h
python-ext-sources perf stat: Warn group events from different hybrid PMU 2021-04-29 10:30:59 -03:00
python.c perf stat: Introduce bpf_counter_ops->disable() 2021-04-29 10:30:58 -03:00
rb_resort.h
rblist.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 2019-06-05 17:37:04 +02:00
rblist.h
record.c perf record: Disallow -c and -F option at the same time 2021-05-10 09:00:59 -03:00
record.h perf record: Add support for PERF_SAMPLE_CODE_PAGE_SIZE 2021-01-20 14:34:20 -03:00
rlimit.c perf tools: Introduce rlimit__bump_memlock() helper 2019-07-09 14:59:11 -03:00
rlimit.h perf tools: Introduce rlimit__bump_memlock() helper 2019-07-09 14:59:11 -03:00
rwsem.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
rwsem.h
s390-cpumcf-kernel.h perf s390-cpumsf: Implement ->evsel_is_auxtrace() callback 2020-04-16 12:19:15 -03:00
s390-cpumsf-kernel.h
s390-cpumsf.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
s390-cpumsf.h
s390-sample-raw.c perf pmu: Add pmu_events_map__find() function to find the common PMU map for the system 2021-04-08 14:24:14 -03:00
sample-raw.c perf evlist: Use the right prefix for 'struct evlist' raw samples methods 2020-11-30 15:15:30 -03:00
sample-raw.h perf evlist: Use the right prefix for 'struct evlist' raw samples methods 2020-11-30 15:15:30 -03:00
session.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-06-22 13:56:50 -03:00
session.h perf report: Add --skip-empty option to suppress 0 event stat 2021-04-29 10:30:59 -03:00
setns.c perf namespaces: Move the conditional setns() prototype to namespaces.h 2019-07-09 10:13:26 -03:00
setup.py perf tools: Add 'evlist' control command 2021-01-20 14:34:21 -03:00
sideband_evlist.c perf evlist: Use the right prefix for 'struct evlist' create maps methods 2020-11-30 14:56:52 -03:00
smt.c perf tools: Simplify checking if SMT is active. 2020-05-05 16:35:29 -03:00
smt.h
sort.c perf sort: Display sort dimension p_stage_cyc only on supported archs 2021-03-26 08:50:00 -03:00
sort.h perf tools: Support pipeline stage cycles for powerpc 2021-03-26 08:49:54 -03:00
spark.c perf diff: Report noisy for cycles diff 2019-10-11 10:57:00 -03:00
spark.h perf diff: Report noisy for cycles diff 2019-10-11 10:57:00 -03:00
srccode.c perf srccode: Use list_move() instead of equivalent list_del() + list_add() sequence 2021-06-08 09:36:36 -03:00
srccode.h
srcline.c perf: Make perf able to build with latest libbfd 2020-01-30 11:55:26 +01:00
srcline.h
stat-display.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-06-22 13:56:50 -03:00
stat-shadow.c perf stat: Basic support for iostat in perf 2021-04-20 08:40:20 -03:00
stat.c perf stat: Use aggregated counts directly 2021-05-12 12:43:11 -03:00
stat.h perf stat: Basic support for iostat in perf 2021-04-20 08:40:20 -03:00
strbuf.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
strbuf.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
stream.c perf streams: Report hot streams 2020-10-14 13:34:26 -03:00
stream.h perf streams: Report hot streams 2020-10-14 13:34:26 -03:00
strfilter.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
strfilter.h perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
string.c perf tools: Add OCaml demangling 2021-02-17 15:15:06 -03:00
string2.h perf tools: Add OCaml demangling 2021-02-17 15:15:06 -03:00
strlist.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
strlist.h
svghelper.c perf env: Remove needless cpumap.h header 2019-09-20 09:19:21 -03:00
svghelper.h perf timechart: Refactor svg_build_topology_map() 2019-08-29 17:38:31 -03:00
symbol-elf.c perf symbol-elf: Fix memory leak by freeing sdt_note.args 2021-06-04 10:06:27 -03:00
symbol-minimal.c perf tools: Pass build_id object to dso__set_build_id() 2020-10-14 08:46:42 -03:00
symbol.c perf symbol: Remove redundant libbfd checks 2021-02-18 16:38:31 -03:00
symbol.h perf tools: Fix crash with non-jited bpf progs 2020-11-03 08:30:34 -03:00
symbol_conf.h perf script: Support filtering by hex address 2021-02-08 17:09:11 -03:00
symbol_fprintf.c perf symbols: Fix dso__fprintf_symbols_by_name() to return the number of printed chars 2021-03-08 11:17:51 -03:00
symsrc.h perf symbols: Move symsrc prototypes to a separate header 2019-08-31 22:24:05 -03:00
synthetic-events.c Merge remote-tracking branch 'torvalds/master' into perf/core 2021-03-29 10:39:10 -03:00
synthetic-events.h perf record: Support synthesizing cgroup events 2020-04-03 09:37:55 -03:00
syscalltbl.c perf tools: Generate mips syscalls_n64.c syscall table 2021-03-01 14:49:28 -03:00
syscalltbl.h perf trace: Remove union from syscalltbl, all the fields are needed 2020-05-29 16:50:26 -03:00
target.c perf stat: Enable counting events for BPF programs 2021-01-20 14:25:28 -03:00
target.h perf stat: Introduce config stat.bpf-counter-events 2021-04-29 10:30:58 -03:00
term.c
term.h
thread-stack.c perf thread-stack: Add thread_stack__br_sample_late() 2020-05-05 16:35:29 -03:00
thread-stack.h perf tools: Remove duplicate struct forward declarations 2021-03-25 08:59:10 -03:00
thread.c perf callchain: Stitch LBR call stack 2020-04-18 09:05:01 -03:00
thread.h perf callchain: Stitch LBR call stack 2020-04-18 09:05:01 -03:00
thread_map.c libperf: Rename the PERF_RECORD_ structs to have a "perf" prefix 2019-08-29 08:36:12 -03:00
thread_map.h libperf: Rename the PERF_RECORD_ structs to have a "perf" prefix 2019-08-29 08:36:12 -03:00
time-utils.c perf script: Fix --reltime with --time 2019-10-15 08:36:22 -03:00
time-utils.h perf script: Fix --reltime with --time 2019-10-15 08:36:22 -03:00
tool.h perf tools: Add support for PERF_RECORD_TEXT_POKE 2020-07-10 08:20:01 -03:00
top.c perf evsel: Rename *perf_evsel__*name() to *evsel__*name() 2020-05-05 16:35:30 -03:00
top.h perf top: Move sb_evlist to 'struct perf_top' 2020-05-05 16:35:29 -03:00
topdown.c perf record: Support sample-read topdown metric group 2020-09-17 15:47:58 -03:00
topdown.h perf record: Support sample-read topdown metric group 2020-09-17 15:47:58 -03:00
trace-event-info.c perf trace-event-info: Rename for_each_event. 2021-02-03 13:13:53 -03:00
trace-event-parse.c perf tools: Remove unused trace_find_next_event() 2019-11-05 08:39:27 -03:00
trace-event-read.c perf traceevent: Ensure read cmdlines are null terminated. 2021-03-06 16:54:26 -03:00
trace-event-scripting.c perf scripting: Add perf_session to scripting_context 2021-06-01 10:03:17 -03:00
trace-event.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
trace-event.h perf script: Factor out script_fetch_insn() 2021-06-01 10:03:46 -03:00
trigger.h perf tools: Remove debug.h from header files not needing it 2019-08-29 17:38:32 -03:00
tsc.c perf session: Dump PERF_RECORD_TIME_CONV event 2021-04-29 10:31:00 -03:00
tsc.h perf session: Dump PERF_RECORD_TIME_CONV event 2021-04-29 10:31:00 -03:00
units.c perf stat: Improve readability of shadow stats 2021-03-15 11:36:54 -03:00
units.h perf stat: Improve readability of shadow stats 2021-03-15 11:36:54 -03:00
unwind-libdw.c perf unwind: Set userdata for all __report_module() paths 2021-02-18 14:20:32 -03:00
unwind-libdw.h
unwind-libunwind-local.c perf tools: Fix various typos in comments 2021-03-23 17:13:43 -03:00
unwind-libunwind.c perf maps: Rename 'mg' variables to 'maps' 2019-11-26 11:07:46 -03:00
unwind.h perf maps: Merge 'struct maps' with 'struct map_groups' 2019-11-26 11:07:46 -03:00
usage.c perf tools: Remove debug.h from places where it is not needed 2019-09-20 09:19:20 -03:00
util.c perf tools: Support CAP_PERFMON capability 2020-04-16 12:19:08 -03:00
util.h perf tests: Call test_attr__open() directly 2020-09-10 11:55:37 -03:00
values.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
values.h
vdso.c perf record: Fix memory leak in vDSO found using ASAN 2021-03-24 10:38:56 -03:00
vdso.h
zlib.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
zstd.c perf tools: Use %zd for size_t printf formats on 32-bit 2020-09-01 12:15:21 -03:00