Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit be4a2ded authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarNamhyung 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 618a3f1d

tools/perf/util/header.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -1440,6 +1440,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp) 
	if (ret != sizeof(pmu_num))

	if (ret != sizeof(pmu_num))

		goto error;

		goto error;





	if (ph->needs_swap)

		pmu_num = bswap_32(pmu_num);



	if (!pmu_num) {

	if (!pmu_num) {

		fprintf(fp, "# pmu mappings: not available\n");

		fprintf(fp, "# pmu mappings: not available\n");

		return;

		return;
@@ -1448,6 +1451,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp) 
	while (pmu_num) {

	while (pmu_num) {

		if (read(fd, &type, sizeof(type)) != sizeof(type))

		if (read(fd, &type, sizeof(type)) != sizeof(type))

			break;

			break;

		if (ph->needs_swap)

			type = bswap_32(type);



		name = do_read_string(fd, ph);

		name = do_read_string(fd, ph);

		if (!name)

		if (!name)

			break;

			break;