diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2020-06-02 23:47:29 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-06-22 16:28:08 -0300 |
| commit | 387ad33fe710758a8e1b860819a7452bceb4329a (patch) | |
| tree | 828d4602012381d3408f3f6308cff02c3471109a /tools/perf/util/parse-events.l | |
| parent | a1f8bc95c33e953e080f72be4b95176dacb423b0 (diff) | |
perf tools: Add fake pmu support
Add a way to create a pmu event without the actual PMU being in place.
This way we can test metrics defined for any processor.
The interface is to define fake_pmu in struct parse_events_state data.
It will be used only in tests via special interface function added in
following changes.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200602214741.1218986-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/parse-events.l')
| -rw-r--r-- | tools/perf/util/parse-events.l | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 002802e17059..56912c9641f5 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -129,12 +129,16 @@ do { \ yyless(0); \ } while (0) -static int pmu_str_check(yyscan_t scanner) +static int pmu_str_check(yyscan_t scanner, struct parse_events_state *parse_state) { YYSTYPE *yylval = parse_events_get_lval(scanner); char *text = parse_events_get_text(scanner); yylval->str = strdup(text); + + if (parse_state->fake_pmu) + return PE_PMU_EVENT_FAKE; + switch (perf_pmu__parse_check(text)) { case PMU_EVENT_SYMBOL_PREFIX: return PE_PMU_EVENT_PRE; @@ -376,7 +380,7 @@ r{num_raw_hex} { return raw(yyscanner); } {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } {bpf_object} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_OBJECT); } {bpf_source} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_SOURCE); } -{name} { return pmu_str_check(yyscanner); } +{name} { return pmu_str_check(yyscanner, _parse_state); } {name_tag} { return str(yyscanner, PE_NAME); } "/" { BEGIN(config); return '/'; } - { return '-'; } |