From: Arnaldo Carvalho de Melo <[email protected]> That is the default used when no events is specified in tools, separate it so that simpler tools that need no evlist can use it directly.
Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/evlist.c | 22 ++-------------------- tools/perf/util/evsel.c | 28 ++++++++++++++++++++++++++++ tools/perf/util/evsel.h | 2 ++ 3 files changed, 32 insertions(+), 20 deletions(-) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 2a40b8e1def7..097b3ed77fdd 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -239,31 +239,13 @@ void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr) int perf_evlist__add_default(struct perf_evlist *evlist) { - struct perf_event_attr attr = { - .type = PERF_TYPE_HARDWARE, - .config = PERF_COUNT_HW_CPU_CYCLES, - }; - struct perf_evsel *evsel; - - event_attr_init(&attr); + struct perf_evsel *evsel = perf_evsel__new_cycles(); - perf_event_attr__set_max_precise_ip(&attr); - - evsel = perf_evsel__new(&attr); if (evsel == NULL) - goto error; - - /* use asprintf() because free(evsel) assumes name is allocated */ - if (asprintf(&evsel->name, "cycles%.*s", - attr.precise_ip ? attr.precise_ip + 1 : 0, ":ppp") < 0) - goto error_free; + return -ENOMEM; perf_evlist__add(evlist, evsel); return 0; -error_free: - perf_evsel__delete(evsel); -error: - return -ENOMEM; } int perf_evlist__add_dummy(struct perf_evlist *evlist) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 8c54df61fe64..4c2b31dc4e4d 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -253,6 +253,34 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) return evsel; } +struct perf_evsel *perf_evsel__new_cycles(void) +{ + struct perf_event_attr attr = { + .type = PERF_TYPE_HARDWARE, + .config = PERF_COUNT_HW_CPU_CYCLES, + }; + struct perf_evsel *evsel; + + event_attr_init(&attr); + + perf_event_attr__set_max_precise_ip(&attr); + + evsel = perf_evsel__new(&attr); + if (evsel == NULL) + goto out; + + /* use asprintf() because free(evsel) assumes name is allocated */ + if (asprintf(&evsel->name, "cycles%.*s", + attr.precise_ip ? attr.precise_ip + 1 : 0, ":ppp") < 0) + goto error_free; +out: + return evsel; +error_free: + perf_evsel__delete(evsel); + evsel = NULL; + goto out; +} + /* * Returns pointer with encoded error via <linux/err.h> interface. */ diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 8a4a6c9f1480..4d44129e050b 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -175,6 +175,8 @@ static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char * return perf_evsel__newtp_idx(sys, name, 0); } +struct perf_evsel *perf_evsel__new_cycles(void); + struct event_format *event_format__new(const char *sys, const char *name); void perf_evsel__init(struct perf_evsel *evsel, -- 2.7.4
