Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 3/7] perf tools: Fix cross-endian analysis | Date | Fri, 10 Apr 2015 18:40:13 -0300 |
| |
From: David Ahern <david.ahern@oracle.com>
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> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1428610546-178789-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/header.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index fff3b2a455ae..918fd8ae2d80 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2504,8 +2504,11 @@ 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); -- 1.9.3
| |