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perf tools: Add __data_loc support

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This patch is required to test the next patch for perf lock.

At 064739bc4b ,
support for the modifier "__data_loc" of format is added.

But, when I wanted to parse format of lock_acquired (or some
event else), raw_field_ptr() did not returned correct pointer.

So I modified raw_field_ptr() like this patch. Then
raw_field_ptr() works well.

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
LKML-Reference: <1264851813-8413-2-git-send-email-mitake@dcl.info.waseda.ac.jp>
[ v3: fixed minor stylistic detail ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hitoshi Mitake 2010-01-30 20:43:23 +09:00 committed by Ingo Molnar
parent a8e6f734ce
commit 86d8d29634
1 changed files with 9 additions and 0 deletions
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9
tools/perf/util/trace-event-parse.c
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@ -1925,6 +1925,15 @@ void *raw_field_ptr(struct event *event, const char *name, void *data)
if (!field)
return NULL;
if (field->flags & FIELD_IS_STRING) {
int offset;
offset = *(int *)(data + field->offset);
offset &= 0xffff;
return data + offset;
}
return data + field->offset;
}