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authorNamhyung Kim <namhyung.kim@lge.com>2012-09-05 14:02:49 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-09-05 17:47:11 -0300
commitbe4a2dedf6816871349fbddd018f266e93e3c22d (patch)
treec74dad2ca7afaebd643b36a3390b910b458cf53e /tools/perf
parent618a3f1d30ea0ee2ff3a88661b8d6a4035123211 (diff)
downloadvexpress-lsk-be4a2dedf6816871349fbddd018f266e93e3c22d.tar.gz
perf header: Swap pmu mapping numbers if needed
Like others, the numbers can be saved in a different endian format than a host machine. Swap them if needed. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Link: http://lkml.kernel.org/r/1346821373-31621-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/header.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 05c9310c3da..43425b75f0c 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1440,6 +1440,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp)
if (ret != sizeof(pmu_num))
goto error;
+ if (ph->needs_swap)
+ pmu_num = bswap_32(pmu_num);
+
if (!pmu_num) {
fprintf(fp, "# pmu mappings: not available\n");
return;
@@ -1448,6 +1451,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp)
while (pmu_num) {
if (read(fd, &type, sizeof(type)) != sizeof(type))
break;
+ if (ph->needs_swap)
+ type = bswap_32(type);
+
name = do_read_string(fd, ph);
if (!name)
break;