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authorJiri Olsa <jolsa@redhat.com>2013-07-17 19:49:44 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-07-17 16:46:32 -0300
commit8d541e974f4b3ed5db7e278b4d64481af34910a9 (patch)
tree03dc055b056c8b57aa875a17dbf91705c11f1463 /tools/perf/util/header.c
parent944d62ba4c8e1c9bb2962a70e3d495106fae8cd9 (diff)
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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/util/header.c')
-rw-r--r--tools/perf/util/header.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index dcba56aac1b7..eefb052190f3 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;
}
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