linux-kernel - [PATCH 06/23] libperf: Add PERF_RECORD_HEADER_BUILD_ID 'struct build_id

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Date:   Wed, 28 Aug 2019 15:57:00 +0200
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>
Subject: [PATCH 06/23] libperf: Add PERF_RECORD_HEADER_BUILD_ID 'struct build_id_event' to perf/event.h

Move the PERF_RECORD_HEADER_BUILD_ID event definition to libperf's event.h.

In order to keep libperf simple, we switch 'u64/u32/u16/u8'
types used events to their generic '__u*' versions.

Adding the fix value for build_id variable,
because it will never change.

Link: http://lkml.kernel.org/n/tip-k8qspx6f04gaveoe7qwpapw8@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/lib/include/perf/event.h | 8 ++++++++
 tools/perf/util/event.h             | 7 -------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/tools/perf/lib/include/perf/event.h b/tools/perf/lib/include/perf/event.h
index fa81fea8dc02..5e6b6d16793c 100644
--- a/tools/perf/lib/include/perf/event.h
+++ b/tools/perf/lib/include/perf/event.h
@@ -6,6 +6,7 @@
 #include <linux/types.h>
 #include <linux/limits.h>
 #include <linux/bpf.h>
+#include <sys/types.h> /* pid_t */
 
 struct perf_record_mmap {
 	struct perf_event_header header;
@@ -180,4 +181,11 @@ struct tracing_data_event {
 	__u32			 size;
 };
 
+struct build_id_event {
+	struct perf_event_header header;
+	pid_t			 pid;
+	__u8			 build_id[24];
+	char			 filename[];
+};
+
 #endif /* __LIBPERF_EVENT_H */
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 67f6a67ad3b4..4b6cf89f31db 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -144,13 +144,6 @@ struct perf_sample {
 	 PERF_MEM_S(LOCK, NA) |\
 	 PERF_MEM_S(TLB, NA))
 
-struct build_id_event {
-	struct perf_event_header header;
-	pid_t			 pid;
-	u8			 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
-	char			 filename[];
-};
-
 enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_USER_TYPE_START		= 64,
 	PERF_RECORD_HEADER_ATTR			= 64,
-- 
2.21.0