Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH 3/7] perf header: Swap pmu mapping numbers if needed | Date | Wed, 5 Sep 2012 14:02:49 +0900 |
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From: Namhyung Kim <namhyung.kim@lge.com>
Like others, the numbers can be saved in a different endian format than a host machine. Swap them if needed.
Cc: Robert Richter <robert.richter@amd.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- tools/perf/util/header.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 05c9310c3da1..43425b75f0c9 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; -- 1.7.11.4
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