static int __cmd_buildid_list(void)
{
	if (show_kernel)
		return sysfs__fprintf_build_id(stdout);

	return perf_session__list_build_ids();
}
static int __cmd_buildid_list(void)
{
	if (show_kernel)
		return sysfs__fprintf_build_id(stdout);

	elf_version(EV_CURRENT);
	/*
 	 * See if this is an ELF file first:
 	 */
	if (filename__fprintf_build_id(input_name, stdout))
		return 0;

	return perf_session__list_build_ids();
}