diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2013-07-17 17:49:44 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-07-17 19:46:32 (GMT) |
| commit | 8d541e974f4b3ed5db7e278b4d64481af34910a9 (patch) | |
| tree | 03dc055b056c8b57aa875a17dbf91705c11f1463 /tools/perf | |
| parent | 944d62ba4c8e1c9bb2962a70e3d495106fae8cd9 (diff) | |
| download | linux-8d541e974f4b3ed5db7e278b4d64481af34910a9.tar.xz | |
perf header: Introduce feat_offset into perf_header
Introducing feat_offset into perf_header to make the location of the
features section clear.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1374083403-14591-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/header.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/header.h | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index dcba56a..eefb052 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2225,7 +2225,7 @@ static int perf_header__adds_write(struct perf_header *header, sec_size = sizeof(*feat_sec) * nr_sections; - sec_start = header->data_offset + header->data_size; + sec_start = header->feat_offset; lseek(fd, sec_start + sec_size, SEEK_SET); for_each_set_bit(feat, header->adds_features, HEADER_FEAT_BITS) { @@ -2304,6 +2304,7 @@ int perf_session__write_header(struct perf_session *session, } header->data_offset = lseek(fd, 0, SEEK_CUR); + header->feat_offset = header->data_offset + header->data_size; if (at_exit) { err = perf_header__adds_write(header, evlist, fd); @@ -2373,7 +2374,7 @@ int perf_header__process_sections(struct perf_header *header, int fd, sec_size = sizeof(*feat_sec) * nr_sections; - lseek(fd, header->data_offset + header->data_size, SEEK_SET); + lseek(fd, header->feat_offset, SEEK_SET); err = perf_header__getbuffer64(header, fd, feat_sec, sec_size); if (err < 0) @@ -2572,6 +2573,7 @@ int perf_file_header__read(struct perf_file_header *header, ph->data_offset = header->data.offset; ph->data_size = header->data.size; + ph->feat_offset = header->data.offset + header->data.size; return 0; } diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index 6fa80f9..e6387dc 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -88,6 +88,7 @@ struct perf_header { bool needs_swap; u64 data_offset; u64 data_size; + u64 feat_offset; DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); struct perf_session_env env; }; |