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Subject[PATCH 04/10] perf session: Consolidate the dump code
Date
From: Thomas Gleixner <tglx@linutronix.de>

The dump code used by perf report -D is scattered all over the place.
Move it to separate functions.

Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ian Munsie <imunsie@au1.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20101207124550.625434869@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/event.h | 1 +
tools/perf/util/session.c | 64 +++++++++++++++++++++++++++-----------------
2 files changed, 40 insertions(+), 25 deletions(-)
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 4716a8f..2b7e919 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -85,6 +85,7 @@ struct build_id_event {
};

enum perf_user_event_type { /* above any possible kernel type */
+ PERF_RECORD_USER_TYPE_START = 64,
PERF_RECORD_HEADER_ATTR = 64,
PERF_RECORD_HEADER_EVENT_TYPE = 65,
PERF_RECORD_HEADER_TRACING_DATA = 66,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index e5d0ed9..12761d5 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -665,6 +665,35 @@ static void perf_session__print_tstamp(struct perf_session *session,
printf("%Lu ", sample->time);
}

+static void dump_event(struct perf_session *session, event_t *event,
+ u64 file_offset, struct sample_data *sample)
+{
+ if (!dump_trace)
+ return;
+
+ dump_printf("\n%#Lx [%#x]: event: %d\n", file_offset,
+ event->header.size, event->header.type);
+
+ trace_event(event);
+
+ if (sample)
+ perf_session__print_tstamp(session, event, sample);
+
+ dump_printf("%#Lx [%#x]: PERF_RECORD_%s",
+ file_offset, event->header.size,
+ event__get_event_name(event->header.type));
+}
+
+static void dump_sample(struct perf_session *session, event_t *event,
+ struct sample_data *sample)
+{
+ dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc,
+ sample->pid, sample->tid, sample->ip, sample->period);
+
+ if (session->sample_type & PERF_SAMPLE_CALLCHAIN)
+ callchain__dump(sample);
+}
+
static int perf_session_deliver_event(struct perf_session *session,
event_t *event,
struct sample_data *sample,
@@ -703,32 +732,24 @@ static int perf_session__process_event(struct perf_session *session,
struct sample_data sample;
int ret;

- trace_event(event);
-
if (session->header.needs_swap && event__swap_ops[event->header.type])
event__swap_ops[event->header.type](event);

- if (event->header.type >= PERF_RECORD_MMAP &&
- event->header.type <= PERF_RECORD_SAMPLE) {
- event__parse_sample(event, session, &sample);
- if (dump_trace)
- perf_session__print_tstamp(session, event, &sample);
- }
+ if (event->header.type >= PERF_RECORD_HEADER_MAX)
+ return -EINVAL;

- if (event->header.type < PERF_RECORD_HEADER_MAX) {
- dump_printf("%#Lx [%#x]: PERF_RECORD_%s",
- file_offset, event->header.size,
- event__get_event_name(event->header.type));
- hists__inc_nr_events(&session->hists, event->header.type);
+ hists__inc_nr_events(&session->hists, event->header.type);
+
+ if (event->header.type >= PERF_RECORD_USER_TYPE_START)
+ dump_event(session, event, file_offset, NULL);
+ else {
+ event__parse_sample(event, session, &sample);
+ dump_event(session, event, file_offset, &sample);
}

/* These events are processed right away */
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
- dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n",
- event->header.misc,
- sample.pid, sample.tid, sample.ip, sample.period);
-
if (session->sample_type & PERF_SAMPLE_CALLCHAIN) {
if (!ip_callchain__valid(sample.callchain, event)) {
pr_debug("call-chain problem with event, "
@@ -738,9 +759,8 @@ static int perf_session__process_event(struct perf_session *session,
sample.period;
return 0;
}
-
- callchain__dump(&sample);
}
+ dump_sample(session, event, &sample);
break;

case PERF_RECORD_HEADER_ATTR:
@@ -870,9 +890,6 @@ more:

head += size;

- dump_printf("\n%#Lx [%#x]: event: %d\n",
- head, event.header.size, event.header.type);
-
if (skip > 0)
head += skip;

@@ -961,9 +978,6 @@ more:

size = event->header.size;

- dump_printf("\n%#Lx [%#x]: event: %d\n",
- file_pos, event->header.size, event->header.type);
-
if (size == 0 ||
perf_session__process_event(session, event, ops, file_pos) < 0) {
dump_printf("%#Lx [%#x]: skipping unknown header type: %d\n",
--
1.6.2.5


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