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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2013-12-11 14:36:28 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-13 10:30:20 -0300 |
| commit | d645c442e68d24e64c46845bc8bb5d5a0a70b249 (patch) | |
| tree | 51c574f7374f89b81a0126008be0bf5944e3cc05 /tools/perf/util/header.c | |
| parent | perf tools: Add perf_event_paranoid() (diff) | |
| download | linux-dev-d645c442e68d24e64c46845bc8bb5d5a0a70b249.tar.xz linux-dev-d645c442e68d24e64c46845bc8bb5d5a0a70b249.zip | |
perf header: Allow header->data_offset to be predetermined
It will be necessary to predetermine header->data_offset to allow space
for attributes that are added later. Consequently, do not change
header->data_offset if it is non-zero.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386765443-26966-17-git-send-email-alexander.shishkin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
| -rw-r--r-- | tools/perf/util/header.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 0bb830f6b49c..61c54213704b 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2327,7 +2327,8 @@ int perf_session__write_header(struct perf_session *session, } } - header->data_offset = lseek(fd, 0, SEEK_CUR); + if (!header->data_offset) + header->data_offset = lseek(fd, 0, SEEK_CUR); header->feat_offset = header->data_offset + header->data_size; if (at_exit) { |