From f5a2c3dce03621b55f84496f58adc2d1a87ca16f Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 15 Jan 2010 18:08:26 -0200
Subject: [PATCH] perf record: Intercept all events
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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: Arnaldo 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: Ingo Molnar <mingo@elte.hu>
---
tools/perf/builtin-record.c | 28 ++++++++++++++++++----------
1 file changed, 18 insertions(+), 10 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 614fa9a4c67c..7bb9ca1b30fa 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -113,16 +113,24 @@ static void write_output(void *buf, size_t size)
static void write_event(event_t *buf, size_t size)
{
- /*
- * 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) {
- struct list_head *head = &dsos__user;
- if (buf->mmap.header.misc == 1)
- head = &dsos__kernel;
- __dsos__findnew(head, buf->mmap.filename);
- }
+ 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 (ev->header.type == PERF_RECORD_MMAP) {
+ struct list_head *head = &dsos__user;
+ if (ev->header.misc == 1)
+ head = &dsos__kernel;
+ __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);
}
--
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