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authorArjan van de Ven <arjan@linux.intel.com>2009-09-12 09:52:51 +0400
committerIngo Molnar <mingo@elte.hu>2009-09-19 13:42:11 +0400
commit8755a8f27ae590dde225f9005ee18c6d9c4c6d78 (patch)
tree1a86744bf0f5ee71bc5f2d0c29f86f9721aa6f4a /tools/perf/util/header.h
parent393b2ad8c757ba3ccd2a99ca5bbcd6db4d3fa53d (diff)
downloadlinux-8755a8f27ae590dde225f9005ee18c6d9c4c6d78.tar.xz
perf: Store trace event name/id pairs in perf.data
The trace event name<->id mapping is dynamic for each kernel compile. In order for perf.data to be useable outside the actual system, we thus need to store a table of this mapping for later use. This patch adds this table to perf.data, and provides helper functions for lookup up fields from this table. To avoid mistakes, lookup-from-table is kept completely seprate from lookup-from-local-debugfs. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090912130405.6960d099@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/header.h')
-rw-r--r--tools/perf/util/header.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 5d0a72ecc919..7b0e84a87179 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -19,6 +19,8 @@ struct perf_header {
s64 attr_offset;
u64 data_offset;
u64 data_size;
+ u64 event_offset;
+ u64 event_size;
};
struct perf_header *perf_header__read(int fd);
@@ -27,6 +29,10 @@ void perf_header__write(struct perf_header *self, int fd);
void perf_header__add_attr(struct perf_header *self,
struct perf_header_attr *attr);
+void perf_header__push_event(u64 id, const char *name);
+char *perf_header__find_event(u64 id);
+
+
struct perf_header_attr *
perf_header_attr__new(struct perf_counter_attr *attr);
void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);