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libperf: Add perf_evsel__new() function 

Add a perf_evsel__new() function to create and init a perf_evsel struct
dynamicaly.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@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>
Link: http://lkml.kernel.org/r/20190721112506.12306-47-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-07-21 13:24:33 +02:00 committed by Arnaldo Carvalho de Melo
parent 634912d61c
commit 63bd5dfa69
3 changed files with 13 additions and 0 deletions
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11
tools/perf/lib/evsel.c
View File

@ -2,9 +2,20 @@
#include <perf/evsel.h>
#include <linux/list.h>
#include <internal/evsel.h>
#include <linux/zalloc.h>
void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr)
{
INIT_LIST_HEAD(&evsel->node);
evsel->attr = *attr;
}
struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
{
struct perf_evsel *evsel = zalloc(sizeof(*evsel));
if (evsel != NULL)
perf_evsel__init(evsel, attr);
return evsel;
}

1
tools/perf/lib/include/perf/evsel.h
View File

@ -9,5 +9,6 @@ struct perf_event_attr;
LIBPERF_API void perf_evsel__init(struct perf_evsel *evsel,
struct perf_event_attr *attr);
LIBPERF_API struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr);
#endif /* __LIBPERF_EVSEL_H */

1
tools/perf/lib/libperf.map
View File

@ -11,6 +11,7 @@ LIBPERF_0.0.1 {
perf_thread_map__comm;
perf_thread_map__get;
perf_thread_map__put;
perf_evsel__new;
perf_evsel__init;
perf_evlist__new;
perf_evlist__init;