Commit bceb59b1 authored Aug 25, 2019 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Aug 26, 2019

libperf: Add PERF_RECORD_FORK 'struct fork_event' to perf/event.h



Move the fork_event event definition into libperf's event.h header
include.

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

Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:

  /*
   * We define u64 as uint64_t for every architecture
   * so that we can print it with "%"PRIx64 without getting warnings.
   *
   * typedef __u64 u64;
   * typedef __s64 s64;
   */

Add and use new PRI_lu64 and PRI_lx64 macros for that.  Using extra '_'
to ease up the reading and differentiate them from standard PRI*64
macros.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190825181752.722-6-jolsa@kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 19d1765a

tools/perf/lib/include/perf/event.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -43,4 +43,11 @@ struct namespaces_event {
		struct perf_ns_link_info link_info[];
		};

		struct fork_event {
		struct perf_event_header header;
		__u32 pid, ppid;
		__u32 tid, ptid;
		__u64 time;
		};

		#endif /* __LIBPERF_EVENT_H */

tools/perf/util/event.h

+0 −7

Original line number	Diff line number	Diff line
		@@ -27,13 +27,6 @@
		#define PRI_lx64 PRIx64
		#endif

		struct fork_event {
		struct perf_event_header header;
		u32 pid, ppid;
		u32 tid, ptid;
		u64 time;
		};

		struct lost_event {
		struct perf_event_header header;
		u64 id;

tools/perf/util/python.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -170,7 +170,7 @@ static PyMemberDef pyrf_task_event__members[] = {
		static PyObject pyrf_task_event__repr(struct pyrf_event pevent)
		{
		return _PyUnicode_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
		"ptid: %u, time: %" PRIu64 "}",
		"ptid: %u, time: %" PRI_lu64 "}",
		pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
		pevent->event.fork.pid,
		pevent->event.fork.ppid,

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