diff options
Diffstat (limited to 'tools/perf/util/build-id.c')
| -rw-r--r-- | tools/perf/util/build-id.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index 4a2c2f0ead41..d909459fb54c 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -93,6 +93,38 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf) return raw - build_id; } +int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id) +{ + char notes[PATH_MAX]; + u8 build_id[BUILD_ID_SIZE]; + int ret; + + if (!root_dir) + root_dir = ""; + + scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir); + + ret = sysfs__read_build_id(notes, build_id, sizeof(build_id)); + if (ret < 0) + return ret; + + return build_id__sprintf(build_id, sizeof(build_id), sbuild_id); +} + +int filename__sprintf_build_id(const char *pathname, char *sbuild_id) +{ + u8 build_id[BUILD_ID_SIZE]; + int ret; + + ret = filename__read_build_id(pathname, build_id, sizeof(build_id)); + if (ret < 0) + return ret; + else if (ret != sizeof(build_id)) + return -EINVAL; + + return build_id__sprintf(build_id, sizeof(build_id), sbuild_id); +} + /* asnprintf consolidates asprintf and snprintf */ static int asnprintf(char **strp, size_t size, const char *fmt, ...) { |