Messages in this thread Patch in this message |  | | From | David Ahern <> | Subject | [PATCH] perf tool: Fix cross-endian analysis | Date | Thu, 9 Apr 2015 16:15:46 -0400 |
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Trying to analyze a big endian data file on little endian system fails with the error: 0xa9b40 [0x70]: failed to process type: 9
The problem is that header parsing is not done correctly because the file attributes are not swapped. Make it so. With this patch able to analyze a sparc64 data file on x86_64.
Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> --- tools/perf/util/header.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index e38cf62..45b7e72 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2586,8 +2586,11 @@ int perf_session__read_header(struct perf_session *session) if (read_attr(fd, header, &f_attr) < 0) goto out_errno; - if (header->needs_swap) + if (header->needs_swap) { + f_attr.ids.size = bswap_64(f_attr.ids.size); + f_attr.ids.offset = bswap_64(f_attr.ids.offset); perf_event__attr_swap(&f_attr.attr); + } tmp = lseek(fd, 0, SEEK_CUR); evsel = perf_evsel__new(&f_attr.attr); -- 1.7.1
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