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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-06-27 16:18:11 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-07-01 16:14:37 -0300 |
| commit | 638e2b9984ee1b8d485366f74d579467880283b4 (patch) | |
| tree | 94d5d8af773b1674d8122ef73d453b2466d3c419 /tools/perf/Documentation | |
| parent | 9bde93a79a897719f829225d0b541b4b11af2c24 (diff) | |
| download | linux-stable-638e2b9984ee1b8d485366f74d579467880283b4.tar.gz linux-stable-638e2b9984ee1b8d485366f74d579467880283b4.tar.bz2 linux-stable-638e2b9984ee1b8d485366f74d579467880283b4.zip | |
perf script: Add option to list dlfilters
Add option --list-dlfilters to list dlfilters in the current directory or
the exec-path e.g. ~/libexec/perf-core/dlfilters. Use with option -v (must
come before option --list-dlfilters) to show long descriptions.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-dlfilter.txt | 4 | ||||
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-dlfilter.txt b/tools/perf/Documentation/perf-dlfilter.txt index aef1c32babd1..8bc219f3eb83 100644 --- a/tools/perf/Documentation/perf-dlfilter.txt +++ b/tools/perf/Documentation/perf-dlfilter.txt @@ -37,6 +37,7 @@ int start(void **data, void *ctx); int stop(void *data, void *ctx); int filter_event(void *data, const struct perf_dlfilter_sample *sample, void *ctx); int filter_event_early(void *data, const struct perf_dlfilter_sample *sample, void *ctx); +const char *filter_description(const char **long_description); ---- If implemented, 'start' will be called at the beginning, before any @@ -59,6 +60,9 @@ error code. 'data' is set by 'start'. 'ctx' is needed for calls to 'filter_event_early' is the same as 'filter_event' except it is called before internal filtering. +If implemented, 'filter_description' should return a one-line description +of the filter, and optionally a longer description. + The perf_dlfilter_sample structure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 2306c81b606b..d2705d6b9874 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -102,6 +102,10 @@ OPTIONS Filter sample events using the given shared object file. Refer linkperf:perf-dlfilter[1] +--list-dlfilters=:: + Display a list of available dlfilters. Use with option -v (must come + before option --list-dlfilters) to show long descriptions. + -a:: Force system-wide collection. Scripts run without a <command> normally use -a by default, while scripts run with a <command> |