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perf: Make common SAMPLE_EVENT parser

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Currently, sample event data is parsed for each commands, and it
is assuming that the data is not including other data. (E.g.
timechart, trace, etc. can't parse the event if it has
PERF_SAMPLE_CALLCHAIN)

So, even if we record the superset data for multiple commands at
a time, commands can't parse. etc.

To fix it, this makes common sample event parser, and use it to
parse sample event correctly. (PERF_SAMPLE_READ is unsupported
for now though, it seems to be not using.)

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <87hbs48imv.fsf@devron.myhome.or.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
OGAWA Hirofumi
2009-12-06 20:08:24 +09:00
committed by Ingo Molnar
parent 028c515253
commit 180f95e29a
7 changed files with 155 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
tools/perf/builtin-kmem.c
View File

@@ -320,35 +320,23 @@ process_raw_event(event_t *raw_event __used, void *more_data,
static int process_sample_event(event_t *event)
{
u64 ip = event->ip.ip;
u64 timestamp = -1;
u32 cpu = -1;
u64 period = 1;
void *more_data = event->ip.__more_data;
struct thread *thread = threads__findnew(event->ip.pid);
struct sample_data data;
struct thread *thread;
if (sample_type & PERF_SAMPLE_TIME) {
timestamp = *(u64 *)more_data;
more_data += sizeof(u64);
}
memset(&data, 0, sizeof(data));
data.time = -1;
data.cpu = -1;
data.period = 1;
if (sample_type & PERF_SAMPLE_CPU) {
cpu = *(u32 *)more_data;
more_data += sizeof(u32);
more_data += sizeof(u32); /* reserved */
}
if (sample_type & PERF_SAMPLE_PERIOD) {
period = *(u64 *)more_data;
more_data += sizeof(u64);
}
event__parse_sample(event, sample_type, &data);
dump_printf("(IP, %d): %d/%d: %p period: %Ld\n",
event->header.misc,
event->ip.pid, event->ip.tid,
(void *)(long)ip,
(long long)period);
data.pid, data.tid,
(void *)(long)data.ip,
(long long)data.period);
thread = threads__findnew(event->ip.pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
@@ -357,7 +345,7 @@ static int process_sample_event(event_t *event)
dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
process_raw_event(event, more_data, cpu, timestamp, thread);
process_raw_event(event, data.raw_data, data.cpu, data.time, thread);
return 0;
}