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| author | David Miller <davem@davemloft.net> | 2018-10-11 22:46:55 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-16 12:30:03 -0300 |
| commit | 0ed149cf5239cc6e7e65bf00f769e8f1e91076c0 (patch) | |
| tree | f8537e09d76a587f32f4585e573cd8bc5d5de308 /tools | |
| parent | c458a6206d2a8600934617ccf88ba7d3a030faba (diff) | |
| download | linux-stable-0ed149cf5239cc6e7e65bf00f769e8f1e91076c0.tar.gz linux-stable-0ed149cf5239cc6e7e65bf00f769e8f1e91076c0.tar.bz2 linux-stable-0ed149cf5239cc6e7e65bf00f769e8f1e91076c0.zip | |
perf cpu_map: Align cpu map synthesized events properly.
The size of the resulting cpu map can be smaller than a multiple of
sizeof(u64), resulting in SIGBUS on cpus like Sparc as the next event
will not be aligned properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Fixes: 6c872901af07 ("perf cpu_map: Add cpu_map event synthesize function")
Link: http://lkml.kernel.org/r/20181011.224655.716771175766946817.davem@davemloft.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/event.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 0cd42150f712..0988eb3b844b 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -1081,6 +1081,7 @@ void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max } *size += sizeof(struct cpu_map_data); + *size = PERF_ALIGN(*size, sizeof(u64)); return zalloc(*size); } |