perf tools: Synthetize the targeted process

Don't forget to also synthetize the targeted process from perf
record or we'll miss its dso in the events and then we won't be
able to deal with its build-id.

We are missing it because it is created after the existing
synthetized tasks but before the counters are enabled and can
send its mapping event.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
LKML-Reference: <1257911467-28276-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index ab333812ace68f80da672dd456b6027ff930e506..9f98b86e747c67142875bc7c6901ed35ac34f495 100644 (file)
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -497,13 +497,22 @@ static int __cmd_record(int argc, const char **argv)
        if (target_pid == -1 && argc) {
                pid = fork();
                if (pid < 0)
-                       perror("failed to fork");
+                       die("failed to fork");
 
                if (!pid) {
                        if (execvp(argv[0], (char **)argv)) {
                                perror(argv[0]);
                                exit(-1);
                        }
+               } else {
+                       /*
+                        * Wait a bit for the execv'ed child to appear
+                        * and be updated in /proc
+                        * FIXME: Do you know a less heuristical solution?
+                        */
+                       usleep(1000);
+                       event__synthesize_thread(pid,
+                                                process_synthesized_event);
                }
 
                child_pid = pid;