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| author |   Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2015-08-15 20:42:59 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-28 14:53:50 -0300 |
| commit | 0b5a7935f3b5b7d40293b02c3e552f3d67af208b (patch) | |
| tree | f7ebe5bf2f85a7605cf0991a68daf0aaf24b886e /tools/perf/util/build-id.c | |
| parent | perf evsel: Add a backpointer to the evlist a evsel is in (diff) | |
| download | linux-dev-0b5a7935f3b5b7d40293b02c3e552f3d67af208b.tar.xz linux-dev-0b5a7935f3b5b7d40293b02c3e552f3d67af208b.zip | |
perf buildid: Introduce sysfs/filename__sprintf_build_id
Introduce sysfs/filename__sprintf_build_id for consolidating similar
code.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20150815114259.13642.34685.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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, ...) { |