Commit 5c6974f4 authored Aug 02, 2013 by Andi Kleen Committed by Arnaldo Carvalho de Melo Aug 07, 2013

perf evlist: Remove obsolete dummy execve



Minor cleanup.

The dummy execve to pre-resolve the PLT is obsolete since
"enable_on_execve" was added. The counters are only
running after the execve anyways. So just remove it.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1375490473-1503-2-git-send-email-andi@firstfloor.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 8fdd84c4

tools/perf/util/evlist.c

+0 −7

Original line number	Original line	Diff line number	Diff line
	@@ -836,13 +836,6 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
	close(go_pipe[1]);		close(go_pipe[1]);
	fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC);		fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC);

	/*
	* Do a dummy execvp to get the PLT entry resolved,
	* so we avoid the resolver overhead on the real
	* execvp call.
	*/
	execvp("", (char **)argv);

	/*		/*
	* Tell the parent we're ready to go		* Tell the parent we're ready to go
	*/		*/