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| author | Adrian Hunter <adrian.hunter@intel.com> | 2020-05-12 14:19:18 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-07-10 13:20:01 +0200 |
| commit | 246eba8e9041c4774738645c72b6efac7601db22 (patch) | |
| tree | d56b865a1e0cd39f3264ac8b67d492ff35fefe21 /tools/perf/util/evsel.c | |
| parent | perf annotate: Fix non-null terminated buffer returned by readlink() (diff) | |
| download | linux-246eba8e9041c4774738645c72b6efac7601db22.tar.xz linux-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/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index ef802f6d40c1..9aa51a65593d 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1064,7 +1064,12 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts, attr->mmap = track; attr->mmap2 = track && !perf_missing_features.mmap2; attr->comm = track; - attr->ksymbol = track && !perf_missing_features.ksymbol; + /* + * ksymbol is tracked separately with text poke because it needs to be + * system wide and enabled immediately. + */ + if (!opts->text_poke) + attr->ksymbol = track && !perf_missing_features.ksymbol; attr->bpf_event = track && !opts->no_bpf_event && !perf_missing_features.bpf; if (opts->record_namespaces) |