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authorFrederic Weisbecker <fweisbec@gmail.com>2009-10-17 17:12:34 +0200
committerIngo Molnar <mingo@elte.hu>2009-10-19 09:26:35 +0200
commit2ba0825075e76236d22a20decd8e2346a99faabe (patch)
treee8f407d50ad0027d59369f295b04ba736b6e7b87 /tools/perf/builtin-record.c
parent5a116dd2797677cad48fee2f42267e3cb69f5502 (diff)
downloadlinux-2.6.34-ux500-2ba0825075e76236d22a20decd8e2346a99faabe.tar.gz
perf tools: Introduce bitmask'ed additional headers
This provides a new set of bitmasked headers. A new field is added in the perf headers that implements a bitmap storing optional features present in the perf.data file. The layout can be pictured like this: (Usual perf headers)(Features bitmap)[Feature 0][Feature n][Feature 255] If the bit n is set, then the feature n is used in this file. They are all set in order. This brings a backward and forward compatibility. The trace_info section has moved into such optional features, this is the first and only one for now. This is backward compatible with the .32 file version although it doesn't support the previous separate trace.info file. And finally it doesn't support the current interim development version. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1255792354-11304-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index fc3709cba13..f0467ff0d8a 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -574,11 +574,11 @@ static int __cmd_record(int argc, const char **argv)
header = perf_header__new();
if (raw_samples) {
- perf_header__set_trace_info();
+ perf_header__feat_trace_info(header);
} else {
for (i = 0; i < nr_counters; i++) {
if (attrs[i].sample_type & PERF_SAMPLE_RAW) {
- perf_header__set_trace_info();
+ perf_header__feat_trace_info(header);
break;
}
}