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libperf: Add perf_evlist__new() function

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Add perf_evlist__new() function to create and init a perf_evlist 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/20190721112506.12306-46-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-07-21 13:24:32 +02:00 committed by Arnaldo Carvalho de Melo
parent 93bce7e5bf
commit 634912d61c
3 changed files with 13 additions and 0 deletions
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11
tools/perf/lib/evlist.c
View File

@ -3,6 +3,7 @@
#include <linux/list.h> #include <linux/list.h>
#include <internal/evlist.h> #include <internal/evlist.h>
#include <internal/evsel.h> #include <internal/evsel.h>
#include <linux/zalloc.h>
void perf_evlist__init(struct perf_evlist *evlist) void perf_evlist__init(struct perf_evlist *evlist)
{ {
@ -23,3 +24,13 @@ void perf_evlist__remove(struct perf_evlist *evlist,
list_del_init(&evsel->node); list_del_init(&evsel->node);
evlist->nr_entries -= 1; evlist->nr_entries -= 1;
} }
struct perf_evlist *perf_evlist__new(void)
{
struct perf_evlist *evlist = zalloc(sizeof(*evlist));
if (evlist != NULL)
perf_evlist__init(evlist);
return evlist;
}

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

@ -12,5 +12,6 @@ LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist,
struct perf_evsel *evsel); struct perf_evsel *evsel);
LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist, LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist,
struct perf_evsel *evsel); struct perf_evsel *evsel);
LIBPERF_API struct perf_evlist *perf_evlist__new(void);
#endif /* __LIBPERF_EVLIST_H */ #endif /* __LIBPERF_EVLIST_H */

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

@ -12,6 +12,7 @@ LIBPERF_0.0.1 {
perf_thread_map__get; perf_thread_map__get;
perf_thread_map__put; perf_thread_map__put;
perf_evsel__init; perf_evsel__init;
perf_evlist__new;
perf_evlist__init; perf_evlist__init;
perf_evlist__add; perf_evlist__add;
perf_evlist__remove; perf_evlist__remove;