Commit-ID: 89896051f8dae5a04ada1f5fbeeaedc23f484f68
Gitweb: http://git.kernel.org/tip/89896051f8dae5a04ada1f5fbeeaedc23f484f68
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 14 Feb 2017 10:59:04 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 14 Feb 2017 15:19:19 -0300
perf tools: Do not put a variable sized type not at the end of a struct
As this is a GNU extension and while harmless in this case, we can do
the same thing in a more clearer way by using an existing thread_map
constructor.
With this we avoid this while compiling with clang:
util/parse-events.c:2024:21: error: field 'map' with variable sized type 'struct thread_map' not at the end of a struct or class is a GNU extension
[-Werror,-Wgnu-variable-sized-type-not-at-end]
struct thread_map map;
^
1 error generated.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-tqocbplnyyhpst6drgm2u4m3@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/parse-events.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 07be076..281e44a 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2020,17 +2020,14 @@ static bool is_event_supported(u8 type, unsigned config)
.config = config,
.disabled = 1,
};
- struct {
- struct thread_map map;
- int threads[1];
- } tmap = {
- .map.nr = 1,
- .threads = { 0 },
- };
+ struct thread_map *tmap = thread_map__new_by_tid(0);
+
+ if (tmap == NULL)
+ return false;
evsel = perf_evsel__new(&attr);
if (evsel) {
- open_return = perf_evsel__open(evsel, NULL, &tmap.map);
+ open_return = perf_evsel__open(evsel, NULL, tmap);
ret = open_return >= 0;
if (open_return == -EACCES) {
@@ -2042,7 +2039,7 @@ static bool is_event_supported(u8 type, unsigned config)
*
*/
evsel->attr.exclude_kernel = 1;
- ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
+ ret = perf_evsel__open(evsel, NULL, tmap) >= 0;
}
perf_evsel__delete(evsel);
}
--
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