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>
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index b5ca988..918b4de 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -19,29 +19,25 @@
static int sysfs__fprintf_build_id(FILE *fp)
{
- u8 kallsyms_build_id[BUILD_ID_SIZE];
char sbuild_id[SBUILD_ID_SIZE];
+ int ret;
- if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
- sizeof(kallsyms_build_id)) != 0)
- return -1;
+ ret = sysfs__sprintf_build_id("/", sbuild_id);
+ if (ret != sizeof(sbuild_id))
+ return ret < 0 ? ret : -EINVAL;
- build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id),
- sbuild_id);
- fprintf(fp, "%s\n", sbuild_id);
- return 0;
+ return fprintf(fp, "%s\n", sbuild_id);
}
static int filename__fprintf_build_id(const char *name, FILE *fp)
{
- u8 build_id[BUILD_ID_SIZE];
char sbuild_id[SBUILD_ID_SIZE];
+ int ret;
- if (filename__read_build_id(name, build_id,
- sizeof(build_id)) != sizeof(build_id))
- return 0;
+ ret = filename__sprintf_build_id(name, sbuild_id);
+ if (ret != sizeof(sbuild_id))
+ return ret < 0 ? ret : -EINVAL;
- build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
return fprintf(fp, "%s\n", sbuild_id);
}
@@ -63,7 +59,7 @@
/*
* See if this is an ELF file first:
*/
- if (filename__fprintf_build_id(input_name, stdout))
+ if (filename__fprintf_build_id(input_name, stdout) > 0)
goto out;
session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);