diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index bf1f18366726..b6bdccd875bc 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -765,6 +765,43 @@ static int record__auxtrace_init(struct record *rec __maybe_unused) #endif +static int record__config_text_poke(struct evlist *evlist) +{ + struct evsel *evsel; + int err; + + /* Nothing to do if text poke is already configured */ + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.attr.text_poke) + return 0; + } + + err = parse_events(evlist, "dummy:u", NULL); + if (err) + return err; + + evsel = evlist__last(evlist); + + evsel->core.attr.freq = 0; + evsel->core.attr.sample_period = 1; + evsel->core.attr.text_poke = 1; + evsel->core.attr.ksymbol = 1; + + evsel->core.system_wide = true; + evsel->no_aux_samples = true; + evsel->immediate = true; + + /* Text poke must be collected on all CPUs */ + perf_cpu_map__put(evsel->core.own_cpus); + evsel->core.own_cpus = perf_cpu_map__new(NULL); + perf_cpu_map__put(evsel->core.cpus); + evsel->core.cpus = perf_cpu_map__get(evsel->core.own_cpus); + + evsel__set_sample_bit(evsel, TIME); + + return 0; +} + static bool record__kcore_readable(struct machine *machine) { char kcore[PATH_MAX]; @@ -2766,6 +2803,14 @@ int cmd_record(int argc, const char **argv) if (rec->opts.full_auxtrace) rec->buildid_all = true; + if (rec->opts.text_poke) { + err = record__config_text_poke(rec->evlist); + if (err) { + pr_err("record__config_text_poke failed, error %d\n", err); + goto out; + } + } + if (record_opts__config(&rec->opts)) { err = -EINVAL; goto out; |