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Commit f5a2c3dc authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by Ingo Molnar
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perf record: Intercept all events 



The event interception we need to do in 'perf record' to create
a list of all DSOs in PERF_RECORD_MMAP events wasn't seeing all
events, make sure that happens by checking size agains
event_t->header.size.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1263586107-1756-1-git-send-email-acme@infradead.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 2c585174

tools/perf/builtin-record.c

+18 −10
Original line number Diff line number Diff line
@@ -113,17 +113,25 @@ static void write_output(void *buf, size_t size) 


static void write_event(event_t *buf, size_t size)

{

	size_t processed_size = buf->header.size;

	event_t *ev = buf;



	do {

		/*

		* Add it to the list of DSOs, so that when we finish this

		 * record session we can pick the available build-ids.

		 */

	if (buf->header.type == PERF_RECORD_MMAP) {

		if (ev->header.type == PERF_RECORD_MMAP) {

			struct list_head *head = &dsos__user;

		if (buf->mmap.header.misc == 1)

			if (ev->header.misc == 1)

				head = &dsos__kernel;

		__dsos__findnew(head, buf->mmap.filename);

			__dsos__findnew(head, ev->mmap.filename);

		}



		ev = ((void *)ev) + ev->header.size;

		processed_size += ev->header.size;

	} while (processed_size < size);



	write_output(buf, size);

}