Allow perf probe to work on powerpc ABIv1 without the need to specify the
leading dot '.' for functions. 'perf probe do_fork' works with this patch.
Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
---
tools/perf/util/probe-event.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index d465f7c..174c22e 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2221,6 +2221,15 @@ static int probe_function_filter(struct map *map
__maybe_unused,
num_matched_functions++;
return 0;
}
+#ifdef __powerpc64__
+ /* Allow matching against the dot variant */
+ if (sym->name[0] == '.' && looking_function_name[0] != '.' &&
+ (sym->binding == STB_GLOBAL || sym->binding == STB_LOCAL) &&
+ strcmp(looking_function_name, sym->name+1) == 0) {
+ num_matched_functions++;
+ return 0;
+ }
+#endif
return 1;
}
--
2.1.3
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