1/*
  2 * builtin-buildid-list.c
  3 *
  4 * Builtin buildid-list command: list buildids in perf.data, in the running
  5 * kernel and in ELF files.
  6 *
  7 * Copyright (C) 2009, Red Hat Inc.
  8 * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
  9 */
 10#include "builtin.h"
 11#include "perf.h"
 12#include "util/build-id.h"
 13#include "util/cache.h"
 14#include "util/debug.h"
 15#include <subcmd/parse-options.h>
 16#include "util/session.h"
 17#include "util/symbol.h"
 18#include "util/data.h"
 19
 20static int sysfs__fprintf_build_id(FILE *fp)
 21{
 22	char sbuild_id[SBUILD_ID_SIZE];
 23	int ret;
 24
 25	ret = sysfs__sprintf_build_id("/", sbuild_id);
 26	if (ret != sizeof(sbuild_id))
 27		return ret < 0 ? ret : -EINVAL;
 28
 29	return fprintf(fp, "%s\n", sbuild_id);
 30}
 31
 32static int filename__fprintf_build_id(const char *name, FILE *fp)
 33{
 34	char sbuild_id[SBUILD_ID_SIZE];
 35	int ret;
 36
 37	ret = filename__sprintf_build_id(name, sbuild_id);
 38	if (ret != sizeof(sbuild_id))
 39		return ret < 0 ? ret : -EINVAL;
 40
 41	return fprintf(fp, "%s\n", sbuild_id);
 42}
 43
 44static bool dso__skip_buildid(struct dso *dso, int with_hits)
 45{
 46	return with_hits && !dso->hit;
 47}
 48
 49static int perf_session__list_build_ids(bool force, bool with_hits)
 50{
 51	struct perf_session *session;
 52	struct perf_data_file file = {
 53		.path  = input_name,
 54		.mode  = PERF_DATA_MODE_READ,
 55		.force = force,
 56	};
 57
 58	symbol__elf_init();
 59	/*
 60	 * See if this is an ELF file first:
 61	 */
 62	if (filename__fprintf_build_id(input_name, stdout) > 0)
 63		goto out;
 64
 65	session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
 
 66	if (session == NULL)
 67		return -1;
 68
 69	/*
 70	 * We take all buildids when the file contains AUX area tracing data
 71	 * because we do not decode the trace because it would take too long.
 72	 */
 73	if (!perf_data_file__is_pipe(&file) &&
 74	    perf_header__has_feat(&session->header, HEADER_AUXTRACE))
 75		with_hits = false;
 76
 77	/*
 78	 * in pipe-mode, the only way to get the buildids is to parse
 79	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 80	 */
 81	if (with_hits || perf_data_file__is_pipe(&file))
 82		perf_session__process_events(session);
 83
 84	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
 85	perf_session__delete(session);
 86out:
 87	return 0;
 88}
 89
 90int cmd_buildid_list(int argc, const char **argv,
 91		     const char *prefix __maybe_unused)
 92{
 93	bool show_kernel = false;
 94	bool with_hits = false;
 95	bool force = false;
 96	const struct option options[] = {
 97	OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
 98	OPT_STRING('i', "input", &input_name, "file", "input file name"),
 99	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
100	OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
101	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
102	OPT_END()
103	};
104	const char * const buildid_list_usage[] = {
105		"perf buildid-list [<options>]",
106		NULL
107	};
108
109	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
110	setup_pager();
111
112	if (show_kernel)
113		return !(sysfs__fprintf_build_id(stdout) > 0);
114
115	return perf_session__list_build_ids(force, with_hits);
116}

 1/*
 2 * builtin-buildid-list.c
 3 *
 4 * Builtin buildid-list command: list buildids in perf.data
 
 5 *
 6 * Copyright (C) 2009, Red Hat Inc.
 7 * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
 8 */
 9#include "builtin.h"
10#include "perf.h"
11#include "util/build-id.h"
12#include "util/cache.h"
13#include "util/debug.h"
14#include "util/parse-options.h"
15#include "util/session.h"
16#include "util/symbol.h"
 
17
18static char const *input_name = "perf.data";
19static bool force;
20static bool with_hits;
21
22static const char * const buildid_list_usage[] = {
23	"perf buildid-list [<options>]",
24	NULL
25};
 
 
 
 
 
 
 
 
26
27static const struct option options[] = {
28	OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
29	OPT_STRING('i', "input", &input_name, "file",
30		    "input file name"),
31	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
32	OPT_INCR('v', "verbose", &verbose,
33		    "be more verbose"),
34	OPT_END()
35};
 
 
36
37static int __cmd_buildid_list(void)
38{
39	struct perf_session *session;
 
 
 
 
 
 
 
 
 
 
 
 
40
41	session = perf_session__new(input_name, O_RDONLY, force, false,
42				    &build_id__mark_dso_hit_ops);
43	if (session == NULL)
44		return -1;
45
46	if (with_hits)
47		perf_session__process_events(session, &build_id__mark_dso_hit_ops);
48
49	perf_session__fprintf_dsos_buildid(session, stdout, with_hits);
 
 
 
 
 
 
 
 
 
 
50
 
51	perf_session__delete(session);
 
52	return 0;
53}
54
55int cmd_buildid_list(int argc, const char **argv, const char *prefix __used)
 
56{
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
57	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
58	setup_pager();
59	return __cmd_buildid_list();
 
 
 
 
60}