From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Tue, 27 Oct 2009 20:42:53 +0000 (-0400)
Subject: perf/probes: Exit searching after finding target function
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8030c5f5a57e018fcdeb1f395d7adc123b48ced6;p=openwrt%2Fstaging%2Fblogic.git

perf/probes: Exit searching after finding target function

Exit searching after finding real (not-inlined) function,
because there should be no same symbol in that CU.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
LKML-Reference: <20091027204252.30545.19251.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 54e707185308..b98d35ef7116 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -585,14 +585,14 @@ static int probefunc_callback(struct die_link *dlink, void *data)
 				DIE_IF(ret != DW_DLV_OK);
 				pr_debug("inline definition offset %lld\n",
 					 pf->inl_offs);
-				return 0;
+				return 0;	/* Continue to search */
 			}
 			/* Get probe address */
 			pf->addr = die_get_entrypc(dlink->die);
 			pf->addr += pp->offset;
 			/* TODO: Check the address in this function */
 			show_probepoint(dlink->die, pp->offset, pf);
-			/* Continue to search */
+			return 1; /* Exit; no same symbol in this CU. */
 		}
 	} else if (tag == DW_TAG_inlined_subroutine && pf->inl_offs) {
 		if (die_get_abstract_origin(dlink->die) == pf->inl_offs) {