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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2020-05-12 15:19:18 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-07-10 08:20:01 -0300 |
| commit | 246eba8e9041c4774738645c72b6efac7601db22 (patch) | |
| tree | d56b865a1e0cd39f3264ac8b67d492ff35fefe21 /tools/perf/util/perf_api_probe.c | |
| parent | perf annotate: Fix non-null terminated buffer returned by readlink() (diff) | |
| download | linux-dev-246eba8e9041c4774738645c72b6efac7601db22.tar.xz linux-dev-246eba8e9041c4774738645c72b6efac7601db22.zip | |
perf tools: Add support for PERF_RECORD_TEXT_POKE
Add processing for PERF_RECORD_TEXT_POKE events. When a text poke event
is processed, then the kernel dso data cache is updated with the poked
bytes.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20200512121922.8997-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/perf_api_probe.c')
| -rw-r--r-- | tools/perf/util/perf_api_probe.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/perf_api_probe.c b/tools/perf/util/perf_api_probe.c index 1337965673d7..3840d02f0f7b 100644 --- a/tools/perf/util/perf_api_probe.c +++ b/tools/perf/util/perf_api_probe.c @@ -93,6 +93,11 @@ static void perf_probe_context_switch(struct evsel *evsel) evsel->core.attr.context_switch = 1; } +static void perf_probe_text_poke(struct evsel *evsel) +{ + evsel->core.attr.text_poke = 1; +} + bool perf_can_sample_identifier(void) { return perf_probe_api(perf_probe_sample_identifier); @@ -108,6 +113,11 @@ bool perf_can_record_switch_events(void) return perf_probe_api(perf_probe_context_switch); } +bool perf_can_record_text_poke_events(void) +{ + return perf_probe_api(perf_probe_text_poke); +} + bool perf_can_record_cpu_wide(void) { struct perf_event_attr attr = { |