1 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index c1fd9ba6d697..4f561e5e4162 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -552,3 +552,22 @@ int sched_getcpu(void)
 	return -1;
 }
 #endif
+
+#ifndef HAVE_SCANDIRAT_SUPPORT
+int scandirat(int dirfd, const char *dirp,
+	      struct dirent ***namelist,
+	      int (*filter)(const struct dirent *),
+	      int (*compar)(const struct dirent **, const struct dirent **))
+{
+	char path[PATH_MAX];
+	int err, fd = openat(dirfd, dirp, O_PATH);
+
+	if (fd < 0)
+		return fd;
+
+	snprintf(path, sizeof(path), "/proc/%d/fd/%d", getpid(), fd);
+	err = scandir(path, namelist, filter, compar);
+	close(fd);
+	return err;
+}
+#endif