Adding build_id__is_defined helper to check build id is defined and is != zero build id.
Signed-off-by: Jiri Olsa <[email protected]> --- tools/perf/util/build-id.c | 6 ++++++ tools/perf/util/build-id.h | 1 + 2 files changed, 7 insertions(+) diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index 6b410c3d52dc..2aacc8b29f7e 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -37,6 +37,7 @@ #include <linux/ctype.h> #include <linux/zalloc.h> +#include <linux/string.h> #include <asm/bug.h> static bool no_buildid_cache; @@ -912,3 +913,8 @@ void build_id__init(struct build_id *bid, const u8 *data, size_t size) memcpy(bid->data, data, size); bid->size = size; } + +bool build_id__is_defined(const struct build_id *bid) +{ + return bid && bid->size ? !!memchr_inv(bid->data, 0, bid->size) : false; +} diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h index f293f99d5dba..d53415feaf69 100644 --- a/tools/perf/util/build-id.h +++ b/tools/perf/util/build-id.h @@ -21,6 +21,7 @@ struct feat_fd; void build_id__init(struct build_id *bid, const u8 *data, size_t size); int build_id__sprintf(const struct build_id *build_id, char *bf); +bool build_id__is_defined(const struct build_id *bid); int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id); int filename__sprintf_build_id(const char *pathname, char *sbuild_id); char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf, -- 2.26.2
