perf tools: Adding throttle event data struct support

Moving 'struct throttle_event' out of python code and making it global
as any other event.

There's no usage of throttling events in any perf commands so far
(besides python support), but we'll need this event data backup for
upcoming test.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 20 insertions, 7 deletions

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 17d9e167a7b9..9b7d4d333111 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -61,6 +61,12 @@ struct read_event {
         u64 id;
 };
 
+struct throttle_event {
+        struct perf_event_header header;
+        u64 time;
+        u64 id;
+        u64 stream_id;
+};
 
 #define PERF_SAMPLE_MASK                                \
         (PERF_SAMPLE_IP | PERF_SAMPLE_TID |             \
@@ -178,6 +184,7 @@ union perf_event {
         struct fork_event               fork;
         struct lost_event               lost;
         struct read_event               read;
+        struct throttle_event           throttle;
         struct sample_event             sample;
         struct attr_event               attr;
         struct event_type_event         event_type;
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index a24ce0a6a941..06efd027b1db 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -33,13 +33,6 @@ int eprintf(int level, const char *fmt, ...)
 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
 #endif
 
-struct throttle_event {
-        struct perf_event_header header;
-        u64                      time;
-        u64                      id;
-        u64                      stream_id;
-};
-
 PyMODINIT_FUNC initperf(void);
 
 #define member_def(type, member, ptype, help) \
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index b97f468af955..d1e449534b33 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -397,6 +397,17 @@ static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
                 swap_sample_id_all(event, &event->read + 1);
 }
 
+static void perf_event__throttle_swap(union perf_event *event,
+                                      bool sample_id_all)
+{
+        event->throttle.time      = bswap_64(event->throttle.time);
+        event->throttle.id        = bswap_64(event->throttle.id);
+        event->throttle.stream_id = bswap_64(event->throttle.stream_id);
+
+        if (sample_id_all)
+                swap_sample_id_all(event, &event->throttle + 1);
+}
+
 static u8 revbyte(u8 b)
 {
         int rev = (b >> 4) | ((b & 0xf) << 4);
@@ -482,6 +493,8 @@ static perf_event__swap_op perf_event__swap_ops[] = {
         [PERF_RECORD_EXIT]                = perf_event__task_swap,
         [PERF_RECORD_LOST]                = perf_event__all64_swap,
         [PERF_RECORD_READ]                = perf_event__read_swap,
+        [PERF_RECORD_THROTTLE]            = perf_event__throttle_swap,
+        [PERF_RECORD_UNTHROTTLE]          = perf_event__throttle_swap,
         [PERF_RECORD_SAMPLE]              = perf_event__all64_swap,
         [PERF_RECORD_HEADER_ATTR]         = perf_event__hdr_attr_swap,
         [PERF_RECORD_HEADER_EVENT_TYPE]   = perf_event__event_type_swap,