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-rw-r--r--tools/perf/util/probe-finder.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 525136684d4..9b0e1b1f975 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -783,6 +783,16 @@ static int convert_probe_point(Dwarf_Die *sp_die, struct probe_finder *pf)
/* This function has no name. */
tev->point.offset = (unsigned long)pf->addr;
+ /* Return probe must be on the head of a subprogram */
+ if (pf->pev->point.retprobe) {
+ if (tev->point.offset != 0) {
+ pr_warning("Return probe must be on the head of"
+ " a real function\n");
+ return -EINVAL;
+ }
+ tev->point.retprobe = true;
+ }
+
pr_debug("Probe point found: %s+%lu\n", tev->point.symbol,
tev->point.offset);