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authorVince Weaver <vincent.weaver@maine.edu>2013-08-23 23:51:03 +0400
committerIngo Molnar <mingo@kernel.org>2013-09-02 10:42:48 +0400
commit274481de6cb69abdb49403ff32abb63c23743413 (patch)
treefe974241d382214e3d19a5a35ed97adb16158ba1 /include/linux/perf_event.h
parent13d7a2410fa637f450a29ecb515ac318ee40c741 (diff)
downloadlinux-274481de6cb69abdb49403ff32abb63c23743413.tar.xz
perf: Export struct perf_branch_entry to userspace
If PERF_SAMPLE_BRANCH_STACK is enabled then samples are returned with the format { u64 from, to, flags } but the flags layout is not specified. This field has the type struct perf_branch_entry; move this definition into include/uapi/linux/perf_event.h so users can access these fields. This is similar to the existing inclusion of perf_mem_data_src in the include/uapi/linux/perf_event.h file. Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Acked-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1308231544420.1889@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h24
1 files changed, 0 insertions, 24 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c43f6eabad5b..4019d82c3d03 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -64,30 +64,6 @@ struct perf_raw_record {
};
/*
- * single taken branch record layout:
- *
- * from: source instruction (may not always be a branch insn)
- * to: branch target
- * mispred: branch target was mispredicted
- * predicted: branch target was predicted
- *
- * support for mispred, predicted is optional. In case it
- * is not supported mispred = predicted = 0.
- *
- * in_tx: running in a hardware transaction
- * abort: aborting a hardware transaction
- */
-struct perf_branch_entry {
- __u64 from;
- __u64 to;
- __u64 mispred:1, /* target mispredicted */
- predicted:1,/* target predicted */
- in_tx:1, /* in transaction */
- abort:1, /* transaction abort */
- reserved:60;
-};
-
-/*
* branch stack layout:
* nr: number of taken branches stored in entries[]
*