1 files changed, 15 insertions, 0 deletions

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 94ca117b8d6..5295625c0c0 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -70,6 +70,21 @@ struct perf_tool build_id__mark_dso_hit_ops = {
         .build_id        = perf_event__process_build_id,
 };
 
+int build_id__sprintf(const u8 *build_id, int len, char *bf)
+{
+        char *bid = bf;
+        const u8 *raw = build_id;
+        int i;
+
+        for (i = 0; i < len; ++i) {
+                sprintf(bid, "%02x", *raw);
+                ++raw;
+                bid += 2;
+        }
+
+        return raw - build_id;
+}
+
 char *dso__build_id_filename(struct dso *self, char *bf, size_t size)
 {
         char build_id_hex[BUILD_ID_SIZE * 2 + 1];