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Revert "perf record: Intercept all events" 

This reverts commit f5a2c3dce0.

This patch is required for making "perf lock rec" work.
The commit f5a2c3dce0 changes write_event() of builtin-record.c
. And changed write_event() sometimes doesn't stop with perf
lock rec.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
[ that commit also causes perf record to not be Ctrl-C-able,
  and it's concetually wrong to parse the data at record time
  (unconditionally - even when not needed), as we eventually
  want to be able to do zero-copy recording, at least for
  non-archive recordings.  ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hitoshi Mitake 2010-01-30 20:55:41 +09:00 committed by Ingo Molnar
parent 6a1b751fb8
commit a8e6f734ce
1 changed files with 10 additions and 18 deletions
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28
tools/perf/builtin-record.c
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@ -113,24 +113,16 @@ 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 (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);
/*
* 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);
}
write_output(buf, size);
}