Commit-ID: 274481de6cb69abdb49403ff32abb63c23743413
Gitweb: http://git.kernel.org/tip/274481de6cb69abdb49403ff32abb63c23743413
Author: Vince Weaver <vincent.wea...@maine.edu>
AuthorDate: Fri, 23 Aug 2013 15:51:03 -0400
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Mon, 2 Sep 2013 08:42:48 +0200
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.wea...@maine.edu>
Acked-by: Stephane Eranian <eran...@google.com>
Signed-off-by: Peter Zijlstra <pet...@infradead.org>
Link:
http://lkml.kernel.org/r/alpine.deb.2.10.1308231544420.1...@vincent-weaver-1.um.maine.edu
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
include/linux/perf_event.h | 24 ------------------------
include/uapi/linux/perf_event.h | 24 ++++++++++++++++++++++++
2 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c43f6ea..4019d82 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[]
*
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index a77f43a..408b8c7 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -757,4 +757,28 @@ union perf_mem_data_src {
#define PERF_MEM_S(a, s) \
(((u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)
+/*
+ * 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;
+};
+
#endif /* _UAPI_LINUX_PERF_EVENT_H */
--
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