1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * builtin-buildid-list.c
  4 *
  5 * Builtin buildid-list command: list buildids in perf.data, in the running
  6 * kernel and in ELF files.
  7 *
  8 * Copyright (C) 2009, Red Hat Inc.
  9 * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
 10 */
 11#include "builtin.h"
 12#include "perf.h"
 13#include "util/build-id.h"
 14#include "util/cache.h"
 15#include "util/debug.h"
 16#include <subcmd/parse-options.h>
 17#include "util/session.h"
 18#include "util/symbol.h"
 19#include "util/data.h"
 20#include <errno.h>
 21
 22static int sysfs__fprintf_build_id(FILE *fp)
 23{
 24	char sbuild_id[SBUILD_ID_SIZE];
 25	int ret;
 26
 27	ret = sysfs__sprintf_build_id("/", sbuild_id);
 28	if (ret != sizeof(sbuild_id))
 29		return ret < 0 ? ret : -EINVAL;
 30
 31	return fprintf(fp, "%s\n", sbuild_id);
 32}
 33
 34static int filename__fprintf_build_id(const char *name, FILE *fp)
 35{
 36	char sbuild_id[SBUILD_ID_SIZE];
 37	int ret;
 38
 39	ret = filename__sprintf_build_id(name, sbuild_id);
 40	if (ret != sizeof(sbuild_id))
 41		return ret < 0 ? ret : -EINVAL;
 42
 43	return fprintf(fp, "%s\n", sbuild_id);
 44}
 45
 46static bool dso__skip_buildid(struct dso *dso, int with_hits)
 47{
 48	return with_hits && !dso->hit;
 49}
 50
 51static int perf_session__list_build_ids(bool force, bool with_hits)
 52{
 53	struct perf_session *session;
 54	struct perf_data data = {
 55		.file      = {
 56			.path = input_name,
 57		},
 58		.mode      = PERF_DATA_MODE_READ,
 59		.force     = force,
 60	};
 61
 62	symbol__elf_init();
 63	/*
 64	 * See if this is an ELF file first:
 65	 */
 66	if (filename__fprintf_build_id(input_name, stdout) > 0)
 67		goto out;
 68
 69	session = perf_session__new(&data, false, &build_id__mark_dso_hit_ops);
 
 70	if (session == NULL)
 71		return -1;
 72
 73	/*
 74	 * We take all buildids when the file contains AUX area tracing data
 75	 * because we do not decode the trace because it would take too long.
 76	 */
 77	if (!perf_data__is_pipe(&data) &&
 78	    perf_header__has_feat(&session->header, HEADER_AUXTRACE))
 79		with_hits = false;
 80
 81	/*
 82	 * in pipe-mode, the only way to get the buildids is to parse
 83	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 84	 */
 85	if (with_hits || perf_data__is_pipe(&data))
 86		perf_session__process_events(session);
 87
 88	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
 89	perf_session__delete(session);
 90out:
 91	return 0;
 92}
 93
 94int cmd_buildid_list(int argc, const char **argv)
 95{
 96	bool show_kernel = false;
 97	bool with_hits = false;
 98	bool force = false;
 99	const struct option options[] = {
100	OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
101	OPT_STRING('i', "input", &input_name, "file", "input file name"),
102	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
103	OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
104	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
105	OPT_END()
106	};
107	const char * const buildid_list_usage[] = {
108		"perf buildid-list [<options>]",
109		NULL
110	};
111
112	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
113	setup_pager();
114
115	if (show_kernel)
116		return !(sysfs__fprintf_build_id(stdout) > 0);
117
118	return perf_session__list_build_ids(force, with_hits);
119}

 
 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}