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authorStephane Eranian <eranian@google.com>2012-03-08 23:47:46 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-09 08:26:08 +0100
commit330aa675b4f92a422cb6d3acbbfd16a628017520 (patch)
treeb1feef795c8de616b31e8a0683c7c0e7498d2d33 /tools/perf/util/header.h
parenta5aabdacde9caff54886ae454e0fad2f26929753 (diff)
downloadop-kernel-dev-330aa675b4f92a422cb6d3acbbfd16a628017520.zip
op-kernel-dev-330aa675b4f92a422cb6d3acbbfd16a628017520.tar.gz
perf record: Add HEADER_BRANCH_STACK tag
This patch adds a new feature bit, namely, HEADER_BRANCH_STACK. When present, it indicates that sample records may contain branch stack. This could be useful to a viewer to switch to branch mode without having to parse all the samples or without a specific cmdline option. This will be used in a subsequent patch to enhance perf report with branch stacks. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: acme@redhat.com Cc: asharma@fb.com Cc: ravitillo@lbl.gov Cc: vweaver1@eecs.utk.edu Cc: khandual@linux.vnet.ibm.com Cc: dsahern@gmail.com Link: http://lkml.kernel.org/r/1331246868-19905-3-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/header.h')
-rw-r--r--tools/perf/util/header.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index e68f617..21a6be0 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -27,7 +27,7 @@ enum {
HEADER_EVENT_DESC,
HEADER_CPU_TOPOLOGY,
HEADER_NUMA_TOPOLOGY,
-
+ HEADER_BRANCH_STACK,
HEADER_LAST_FEATURE,
HEADER_FEAT_BITS = 256,
};
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