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linux/tools/perf/util
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Steve MacLean c8f6ae1fb2 perf inject jit: Remove //anon mmap events 
**perf-<pid>.map and jit-<pid>.dump designs:

When a JIT generates code to be executed, it must allocate memory and
mark it executable using an mmap call.

*** perf-<pid>.map design

The perf-<pid>.map assumes that any sample recorded in an anonymous
memory page is JIT code. It then tries to resolve the symbol name by
looking at the process' perf-<pid>.map.

*** jit-<pid>.dump design

The jit-<pid>.dump mechanism takes a different approach. It requires a
JIT to write a `<path>/jit-<pid>.dump` file. This file must also be
mmapped so that perf inject -jit can find the file. The JIT must also
add JIT_CODE_LOAD records for any functions it generates. The records
are timestamped using a clock which can be correlated to the perf record
clock.

After perf record,  the `perf inject -jit` pass parses the recording
looking for a `<path>/jit-<pid>.dump` file. When it finds the file, it
parses it and for each JIT_CODE_LOAD record:
* creates an elf file `<path>/jitted-<pid>-<code_index>.so
* injects a new mmap record mapping the new elf file into the process.

*** Coexistence design

The kernel and perf support both of these mechanisms. We need to make
sure perf works on an app supporting either or both of these mechanisms.
Both designs rely on mmap records to determine how to resolve an ip
address.

The mmap records of both techniques by definition overlap. When the JIT
compiles a method, it must:

* allocate memory (mmap)
* add execution privilege (mprotect or mmap. either will
generate an mmap event form the kernel to perf)
* compile code into memory
* add a function record to perf-<pid>.map and/or jit-<pid>.dump

Because the jit-<pid>.dump mechanism supports greater capabilities, perf
prefers the symbols from jit-<pid>.dump. It implements this based on
timestamp ordering of events. There is an implicit ASSUMPTION that the
JIT_CODE_LOAD record timestamp will be after the // anon mmap event that
was generated during memory allocation or adding the execution privilege setting.

*** Problems with the ASSUMPTION

The ASSUMPTION made in the Coexistence design section above is violated
in the following scenario.

*** Scenario

While a JIT is jitting code it will eventually need to commit more
pages and change these pages to executable permissions. Typically the
JIT will want these collocated to minimize branch displacements.

The kernel will coalesce these anonymous mapping with identical
permissions before sending an MMAP event for the new pages. The address
range of the new mmap will not be just the most recently mmap pages.
It will include the entire coalesced mmap region.

See mm/mmap.c

unsigned long mmap_region(struct file *file, unsigned long addr,
                unsigned long len, vm_flags_t vm_flags, unsigned long pgoff,
                struct list_head *uf)
{
...
        /*
         * Can we just expand an old mapping?
         */
...
        perf_event_mmap(vma);
...
}

*** Symptoms

The coalesced // anon mmap event will be timestamped after the
JIT_CODE_LOAD records. This means it will be used as the most recent
mapping for that entire address range. For remaining events it will look
at the inferior perf-<pid>.map for symbols.

If both mechanisms are supported, the symbol will appear twice with
different module names. This causes weird behavior in reporting.

If only jit-<pid>.dump is supported, the symbol will no longer be resolved.

** Implemented solution

This patch solves the issue by removing // anon mmap events for any
process which has a valid jit-<pid>.dump file.

It tracks on a per process basis to handle the case where some running
apps support jit-<pid>.dump, but some only support perf-<pid>.map.

It adds new assumptions:
* // anon mmap events are only required for perf-<pid>.map support.
* An app that uses jit-<pid>.dump, no longer needs
perf-<pid>.map support. It assumes that any perf-<pid>.map info is
inferior.

*** Details

Use thread->priv to store whether a jitdump file has been processed

During "perf inject --jit", discard "//anon*" mmap events for any pid which
has sucessfully processed a jitdump file.

** Testing:

// jitdump case

  perf record <app with jitdump>
  perf inject --jit --input perf.data --output perfjit.data

// verify mmap "//anon" events present initially

  perf script --input perf.data --show-mmap-events | grep '//anon'

// verify mmap "//anon" events removed

  perf script --input perfjit.data --show-mmap-events | grep '//anon'

// no jitdump case

  perf record <app without jitdump>
  perf inject --jit --input perf.data --output perfjit.data

// verify mmap "//anon" events present initially

  perf script --input perf.data --show-mmap-events | grep '//anon'

// verify mmap "//anon" events not removed

  perf script --input perfjit.data --show-mmap-events | grep '//anon'

** Repro:

This issue was discovered while testing the initial CoreCLR jitdump
implementation. https://github.com/dotnet/coreclr/pull/26897.

** Alternate solutions considered

These were also briefly considered:

* Change kernel to not coalesce mmap regions.

* Change kernel reporting of coalesced mmap regions to perf. Only
include newly mapped memory.

* Only strip parts of // anon mmap events overlapping existing
jitted-<pid>-<code_index>.so mmap events.

Signed-off-by: Steve MacLean <Steve.MacLean@Microsoft.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/1590544271-125795-1-git-send-email-steve.maclean@linux.microsoft.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-08 13:51:12 -03:00
..
arm-spe-decoder perf arm-spe: Support synthetic events 2020-06-01 12:24:23 -03:00
c++ perf clang: Fix build with Clang 9 2020-01-14 12:02:19 -03:00
cs-etm-decoder perf: cs-etm: Update to build with latest opencsd version. 2020-05-05 16:35:32 -03:00
include perf bench: Update the copies of x86's mem{cpy,set}_64.S 2019-12-02 11:40:57 -03:00
intel-pt-decoder perf tools: Remove unneeded semicolons 2020-04-30 10:48:32 -03:00
libunwind perf tools: Remove debug.h from places where it is not needed 2019-09-20 09:19:20 -03:00
scripting-engines perf evsel: Rename *perf_evsel__*name() to *evsel__*name() 2020-05-05 16:35:30 -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 tools: Remove some duplicated includes 2020-06-02 11:09:41 -03:00
annotate.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
archinsn.h perf script: Support insn output for normal samples 2019-03-11 11:56:02 -03:00
arm-spe.c perf arm-spe: Support synthetic events 2020-06-01 12:24:23 -03:00
arm-spe.h
auxtrace.c perf tools: Remove some duplicated includes 2020-06-02 11:09:41 -03:00
auxtrace.h perf auxtrace: Add four itrace options 2020-06-01 12:24:23 -03:00
block-info.c perf block-info: Support color ops to print block percents in color 2020-03-09 21:43:25 -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 perf block-range: Add missing headers 2019-01-25 15:12:09 +01:00
block-range.h perf block-range: Add missing headers 2019-01-25 15:12:09 +01:00
bpf_map.c perf bpf: Add bpf_map dumper 2019-02-19 16:11:56 -03:00
bpf_map.h perf bpf: Add bpf_map dumper 2019-02-19 16:11:56 -03:00
bpf-event.c perf bpf: Decouple creating the evlist from adding the SB event 2020-05-05 16:35:29 -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 bpf-loader: Add missing '*' for key_scan_pos 2020-05-28 10:03:27 -03:00
bpf-loader.h perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
bpf-prologue.c perf bpf: Fix bpf prologue generation 2020-06-09 12:40:04 -03:00
bpf-prologue.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: Disable a subset of bison warnings 2020-07-02 08:35:38 -03:00
build-id.c perf copyfile: Move copyfile routines to separate files 2019-09-25 09:51:49 -03:00
build-id.h perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
callchain.c perf callchain: Setup callchain properly in pipe mode 2020-05-28 10:03:25 -03:00
callchain.h perf callchain: Setup callchain properly in pipe mode 2020-05-28 10:03:25 -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 cgroup: Avoid needless closing of unopened fd 2020-04-22 10:01:33 -03:00
cgroup.h perf cgroup: Maintain cgroup hierarchy 2020-04-03 09:37:55 -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_config.c perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
color.c perf tools: Remove needless evlist.h include directives 2019-08-31 22:24:10 -03:00
color.h perf color: Add missing stdarg.g to color.h 2019-01-25 15:12:08 +01:00
comm.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
comm.h perf comm: Remove needless headers from comm.h 2019-01-25 15:12:09 +01:00
compress.h perf report: Implement perf.data record decompression 2019-05-15 16:36:49 -03:00
config.c perf tools: Remove some duplicated includes 2020-06-02 11:09:41 -03:00
config.h perf config: Introduce perf_config_u8() 2020-02-27 10:44:54 -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 perf tools: Add fallback versions for CPU_{OR,EQUAL}() 2019-02-06 10:00:39 -03:00
cpumap.c perf cpumap: Fix snprintf overflow check 2020-03-24 10:36:00 -03:00
cpumap.h perf evsel: Add iterator to iterate over events ordered by CPU 2019-11-29 12:20:45 -03:00
cputopo.c perf cpumap: Remove needless includes from cpumap.h 2019-08-22 17:16:57 -03:00
cputopo.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
cs-etm.c perf cs-etm: Move definition of 'traceid_list' global variable from header file 2020-05-05 16:35:32 -03:00
cs-etm.h perf cs-etm: Move definition of 'traceid_list' global variable from header file 2020-05-05 16:35:32 -03:00
data-convert-bt.c perf evsel: Rename perf_evsel__is_*() to evsel__is*() 2020-05-05 16:35:31 -03:00
data-convert-bt.h
data-convert.h
data.c perf record: Put a copy of kcore into the perf.data directory 2019-11-06 15:43:05 -03:00
data.h perf record: Put a copy of kcore into the perf.data directory 2019-11-06 15:43:05 -03:00
db-export.c perf addr_location: Rename al->mg to al->maps 2019-11-26 11:07:46 -03:00
db-export.h perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -03:00
debug.c perf tool: Provide an option to print perf_event_open args and return value 2019-11-12 08:32:27 -03:00
debug.h perf tool: Provide an option to print perf_event_open args and return value 2019-11-12 08:32:27 -03:00
demangle-java.c perf jvmti: Fix demangling Java symbols 2020-05-28 10:03:28 -03:00
demangle-java.h
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 symbols: Fix debuginfo search for Ubuntu 2020-05-28 10:03:28 -03:00
dso.h perf symbols: Fix debuginfo search for Ubuntu 2020-05-28 10:03:28 -03:00
dsos.c perf dso: Fix dso comparison 2020-03-24 10:57:38 -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: Show correct statement line number by perf probe -l 2019-11-18 18:56:27 -03:00
dwarf-aux.h perf probe: Fix to show function entry line as probe-able 2019-11-06 15:43:06 -03:00
dwarf-regs.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
env.c perf cgroup: Maintain cgroup hierarchy 2020-04-03 09:37:55 -03:00
env.h perf header: Support CPU PMU capabilities 2020-04-18 09:05:00 -03:00
event.c perf script: Avoid NULL dereference on symbol 2020-04-22 10:59:02 -03:00
event.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
events_stats.h perf tools: Move 'struct events_stats' and prototypes to separate header 2019-08-31 22:24:10 -03:00
evlist.c Merge remote-tracking branch 'torvalds/master' into perf/core 2020-07-08 13:49:15 -03:00
evlist.h Merge remote-tracking branch 'torvalds/master' into perf/core 2020-07-08 13:49:15 -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 evsel: Rename perf_evsel__fprintf() to evsel__fprintf() 2020-05-28 10:03:24 -03:00
evsel_fprintf.h perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf() 2020-05-28 10:03:24 -03:00
evsel.c perf intel-pt: Fix recording PEBS-via-PT with registers 2020-07-06 09:03:39 -03:00
evsel.h perf record: Fix duplicated sideband events with Intel PT system wide tracing 2020-07-03 08:16:51 -03:00
evswitch.c perf evswitch: Add hint when not finding specified on/off events 2019-08-15 12:26:13 -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: Add missing headers noticed when building with NO_LIBBPF=1 2020-06-23 10:11:12 -03:00
expr.h perf expr: Migrate expr ids table to a hashmap 2020-05-28 10:03:26 -03:00
expr.l perf expr: Add < and > operators 2020-06-22 16:28:09 -03:00
expr.y perf expr: Add < and > operators 2020-06-22 16:28:09 -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_debug.c perf jit: Fix inaccurate DWARF line table 2020-05-29 16:51:38 -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
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
group.h
hashmap.c perf tools: Grab a copy of libbpf's hashmap 2020-05-28 10:03:26 -03:00
hashmap.h perf tools: Grab a copy of libbpf's hashmap 2020-05-28 10:03:26 -03:00
header.c perf session: Try to read pipe data from file 2020-05-28 10:03:25 -03:00
header.h perf header: Support CPU PMU capabilities 2020-04-18 09:05:00 -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 evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -03:00
hist.h perf evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -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 perf intel-pt: Fix PEBS sample for XMM registers 2020-07-06 09:03:39 -03:00
intel-pt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intlist.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 2019-06-05 17:37:04 +02:00
intlist.h perf util: Use cached rbtree for rblists 2019-01-25 15:12:10 +01:00
jit.h
jitdump.c perf inject jit: Remove //anon mmap events 2020-07-08 13:51:12 -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
levenshtein.h
llvm-utils.c perf llvm: Add debug hint message about missing kernel-devel package 2020-03-04 10:34:10 -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 tools: Fix is_bpf_image function logic 2020-05-28 10:03:26 -03:00
machine.h perf tools: Basic support for CGROUP event 2020-04-03 09:37:55 -03:00
map_symbol.h perf map_symbol: Rename ms->mg to ms->maps 2019-11-26 11:07:46 -03:00
map.c perf map: Use strstarts() to look for Android libraries 2020-03-11 10:48:44 -03:00
map.h perf maps: Merge 'struct maps' with 'struct map_groups' 2019-11-26 11:07:46 -03:00
maps.h perf maps: Rename map_groups.h to maps.h 2019-11-26 11:07:46 -03:00
mem2node.c perf mem2node: Avoid double free related to realloc 2020-05-05 16:35:30 -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
mem-events.c perf c2c: Fix 'perf c2c record -e list' to show the default events used 2020-05-28 10:03:25 -03:00
mem-events.h perf c2c: Fix 'perf c2c record -e list' to show the default events used 2020-05-28 10:03:25 -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 tools: Release metric_events rblist 2020-06-22 16:28:09 -03:00
metricgroup.h perf tools: Release metric_events rblist 2020-06-22 16:28:09 -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 tools: Move event synthesizing routines to separate .c file 2019-09-20 10:28:21 -03:00
namespaces.h perf tools: Move event synthesizing routines to separate .c file 2019-09-20 10:28:21 -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.c perf parse: Provide a way to pass a fake_pmu to parse_events() 2020-06-22 16:28:08 -03:00
parse-events.h perf parse: Provide a way to pass a fake_pmu to parse_events() 2020-06-22 16:28:08 -03:00
parse-events.l perf tools: Add fake pmu support 2020-06-22 16:28:08 -03:00
parse-events.y perf tools: Add fake pmu support 2020-06-22 16:28:08 -03:00
parse-regs-options.c perf tools: Avoid 'sample_reg_masks' being const + weak 2019-10-10 09:29:33 -03:00
parse-regs-options.h perf parse-regs: Split parse_regs 2019-05-15 16:36:49 -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_api_probe.c perf tools: Move routines that probe for perf API features to separate file 2020-05-05 16:35:26 -03:00
perf_api_probe.h perf tools: Move routines that probe for perf API features to separate file 2020-05-05 16:35:26 -03:00
perf_event_attr_fprintf.c perf tools: Basic support for CGROUP event 2020-04-03 09:37:55 -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 regs: Make perf_reg_name() return "unknown" instead of NULL 2019-11-28 08:08:38 -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
pfm.c perf tools: Add optional support for libpfm4 2020-05-29 16:51:38 -03:00
pfm.h perf tools: Add optional support for libpfm4 2020-05-29 16:51:38 -03:00
pmu.c perf pmu: Improve CPU core PMU HW event list ordering 2020-06-22 16:28:09 -03:00
pmu.h perf pmu: Add a perf_pmu__fake object to use with __parse_events() 2020-06-22 16:28:08 -03:00
pmu.l
pmu.y
print_binary.c tools perf: Move from sane_ctype.h obtained from git to the Linux's original 2019-06-25 21:02:47 -03:00
print_binary.h
probe-event.c perf probe: Fix user attribute access in kprobes 2020-06-09 12:40:04 -03:00
probe-event.h perf probe: Trace a magic number if variable is not found 2019-11-18 19:09:23 -03:00
probe-file.c perf probe: Fix user attribute access in kprobes 2020-06-09 12:40:04 -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 symbols: Fix debuginfo search for Ubuntu 2020-05-28 10:03:28 -03:00
probe-finder.h perf probe: Trace a magic number if variable is not found 2019-11-18 19:09:23 -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 python: Include rwsem.c in the pythong biding 2020-04-03 09:37:55 -03:00
python.c perf evsel: Rename perf_evsel__parse_sample*() to evsel__parse_sample*() 2020-05-05 16:35:31 -03:00
rb_resort.h perf util: Use cached rbtree for rblists 2019-01-25 15:12:10 +01:00
rblist.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 2019-06-05 17:37:04 +02:00
rblist.h perf util: Use cached rbtree for rblists 2019-01-25 15:12:10 +01:00
record.c perf evsel: Rename *perf_evsel__read*() to *evsel__read() 2020-05-05 16:35:31 -03:00
record.h perf record: Respect --no-switch-events 2020-05-28 11:33:36 -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 auxtrace: Add option to synthesize branch stack for regular events 2020-05-05 16:35:29 -03:00
s390-cpumsf.h
s390-sample-raw.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
sample-raw.c perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
sample-raw.h perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
session.c perf evlist: Fix the class prefix for 'struct evlist' sample_id_all methods 2020-06-22 16:28:10 -03:00
session.h perf session: Add facility to peek at all events 2019-11-22 10:48:13 -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 python: Check if clang supports -fno-semantic-interposition 2020-04-14 08:43:18 -03:00
sideband_evlist.c perf evsel: Rename perf_evsel__new*() to evsel__new*() 2020-05-28 10:03:24 -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 util: Fix memory leak of prefix_if_not_in 2020-05-28 10:03:27 -03:00
sort.h perf hist: Add fast path for duplicate entries check 2020-04-18 09:05:01 -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 pmu: Use file system cache to optimize sysfs access 2019-11-28 08:08:38 -03:00
srccode.h perf srccode: Move struct definition from map.h to srccode.h 2019-02-06 10:00:38 -03:00
srcline.c perf: Make perf able to build with latest libbfd 2020-01-30 11:55:26 +01:00
srcline.h perf callchain: Use cached rbtrees 2019-01-25 15:12:09 +01:00
stat-display.c perf stat: Fix NULL pointer dereference 2020-06-09 12:40:04 -03:00
stat-shadow.c perf tools: Add test_generic_metric function 2020-06-22 16:28:09 -03:00
stat.c perf stat: Report summary for interval mode 2020-05-28 10:03:27 -03:00
stat.h perf tools: Add test_generic_metric function 2020-06-22 16:28:09 -03:00
strbuf.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
strbuf.h
strfilter.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
strfilter.h
string2.h perf string: Export asprintf__tp_filter_pids() 2019-10-15 13:03:57 -03:00
string.c tools lib: Move argv_{split,free} from tools/perf/util/ 2019-07-01 22:50:40 -03:00
strlist.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
strlist.h perf util: Use cached rbtree for rblists 2019-01-25 15:12:10 +01:00
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_conf.h perf report: Allow specifying event to be used as sort key in --group output 2020-03-24 09:37:27 -03:00
symbol_fprintf.c perf symbols: Move symsrc prototypes to a separate header 2019-08-31 22:24:05 -03:00
symbol-elf.c perf kcore_copy: Fix module map when there are no modules loaded 2020-05-28 10:03:28 -03:00
symbol-minimal.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
symbol.c perf symbols: Add s390 idle functions 'psw_idle' and 'psw_idle_exit' to list of idle symbols 2020-07-07 16:44:57 -03:00
symbol.h perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
symsrc.h perf symbols: Move symsrc prototypes to a separate header 2019-08-31 22:24:05 -03:00
synthetic-events.c perf tools: Remove unneeded semicolons 2020-04-30 10:48:32 -03:00
synthetic-events.h perf record: Support synthesizing cgroup events 2020-04-03 09:37:55 -03:00
syscalltbl.c perf trace: Use zalloc() to make sure all fields are zeroed in the syscalltbl constructor 2020-05-29 16:50:29 -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 tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
target.h
term.c
term.h
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
thread-stack.c perf thread-stack: Add thread_stack__br_sample_late() 2020-05-05 16:35:29 -03:00
thread-stack.h perf thread-stack: Add thread_stack__br_sample_late() 2020-05-05 16:35:29 -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
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 record: Support synthesizing cgroup events 2020-04-03 09:37:55 -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
trace-event-info.c perf util: Fix potential SEGFAULT in put_tracepoints_path error path 2020-05-28 10:03:27 -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 tools: Remove unneeded semicolons 2020-04-30 10:48:32 -03:00
trace-event-scripting.c perf tools: Remove perf.h from source files not needing it 2019-08-29 17:38:32 -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 tools: Remove unused trace_find_next_event() 2019-11-05 08:39:27 -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
tsc.h perf tools: Move event synthesizing routines to separate header 2019-09-20 09:19:22 -03:00
units.c
units.h
unwind-libdw.c perf map_symbol: Rename ms->mg to ms->maps 2019-11-26 11:07:46 -03:00
unwind-libdw.h
unwind-libunwind-local.c perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -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 util: Factor out sysctl__nmi_watchdog_enabled() 2020-03-10 14:46:19 -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 thread: Rename thread->mg to thread->maps 2019-11-26 11:07:46 -03:00
vdso.h
xyarray.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
zlib.c perf tools: Remove util.h from where it is not needed 2019-09-20 09:19:20 -03:00
zstd.c perf session: Fix loading of compressed data split across adjacent records 2019-07-23 09:04:03 -03:00