diff options
| author | Andi Kleen <ak@linux.intel.com> | 2017-09-05 20:00:28 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-09-13 15:49:14 +0300 |
| commit | 84c417422798c897f637b0249f64a52807b4a61b (patch) | |
| tree | e68d787314c8837fd7b0bf5b44c2c752813102a7 /tools/perf/util/evsel.c | |
| parent | b90f1333ef08d2a497ae239798868b046f4e3a97 (diff) | |
| download | linux-84c417422798c897f637b0249f64a52807b4a61b.tar.xz | |
perf record: Support direct --user-regs arguments
USER_REGS can currently only collected implicitely with call graph
recording. Sometimes it is useful to see them separately, and filter
them. Add a new --user-regs option to record that is similar to
--intr-regs, but acts on user regs.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170905170029.19722-1-andi@firstfloor.org
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 4bb89373eb52..7389746c0dc4 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -678,7 +678,7 @@ void perf_evsel__config_callchain(struct perf_evsel *evsel, if (!function) { perf_evsel__set_sample_bit(evsel, REGS_USER); perf_evsel__set_sample_bit(evsel, STACK_USER); - attr->sample_regs_user = PERF_REGS_MASK; + attr->sample_regs_user |= PERF_REGS_MASK; attr->sample_stack_user = param->dump_size; attr->exclude_callchain_user = 1; } else { @@ -931,6 +931,11 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts, perf_evsel__set_sample_bit(evsel, REGS_INTR); } + if (opts->sample_user_regs) { + attr->sample_regs_user |= opts->sample_user_regs; + perf_evsel__set_sample_bit(evsel, REGS_USER); + } + if (target__has_cpu(&opts->target) || opts->sample_cpu) perf_evsel__set_sample_bit(evsel, CPU); |