Commit-ID: be4a2dedf6816871349fbddd018f266e93e3c22d
Gitweb: http://git.kernel.org/tip/be4a2dedf6816871349fbddd018f266e93e3c22d
Author: Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Wed, 5 Sep 2012 14:02:49 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 5 Sep 2012 17:47:11 -0300
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@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
Link: http://lkml.kernel.org/r/1346821373-31621-4-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/header.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 05c9310..43425b7 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;
--
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