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}

  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/debug.h"
 14#include "util/dso.h"
 15#include <subcmd/pager.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#include <linux/err.h>
 22
 23static int sysfs__fprintf_build_id(FILE *fp)
 24{
 25	char sbuild_id[SBUILD_ID_SIZE];
 26	int ret;
 
 
 
 
 27
 28	ret = sysfs__sprintf_build_id("/", sbuild_id);
 29	if (ret != sizeof(sbuild_id))
 30		return ret < 0 ? ret : -EINVAL;
 31
 32	return fprintf(fp, "%s\n", sbuild_id);
 33}
 
 
 
 34
 35static int filename__fprintf_build_id(const char *name, FILE *fp)
 36{
 37	char sbuild_id[SBUILD_ID_SIZE];
 38	int ret;
 39
 40	ret = filename__sprintf_build_id(name, sbuild_id);
 41	if (ret != sizeof(sbuild_id))
 42		return ret < 0 ? ret : -EINVAL;
 
 43
 44	return fprintf(fp, "%s\n", sbuild_id);
 45}
 46
 47static bool dso__skip_buildid(struct dso *dso, int with_hits)
 48{
 49	return with_hits && !dso->hit;
 50}
 51
 52static int perf_session__list_build_ids(bool force, bool with_hits)
 53{
 54	struct perf_session *session;
 55	struct perf_data data = {
 56		.path  = input_name,
 57		.mode  = PERF_DATA_MODE_READ,
 58		.force = force,
 59	};
 60
 61	symbol__elf_init();
 62	/*
 63	 * See if this is an ELF file first:
 64	 */
 65	if (filename__fprintf_build_id(input_name, stdout) > 0)
 66		goto out;
 67
 68	session = perf_session__new(&data, false, &build_id__mark_dso_hit_ops);
 69	if (IS_ERR(session))
 70		return PTR_ERR(session);
 71
 72	/*
 73	 * We take all buildids when the file contains AUX area tracing data
 74	 * because we do not decode the trace because it would take too long.
 75	 */
 76	if (!perf_data__is_pipe(&data) &&
 77	    perf_header__has_feat(&session->header, HEADER_AUXTRACE))
 78		with_hits = false;
 79
 80	if (!perf_header__has_feat(&session->header, HEADER_BUILD_ID))
 81		with_hits = true;
 82
 83	if (zstd_init(&(session->zstd_data), 0) < 0)
 84		pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
 85
 86	/*
 87	 * in pipe-mode, the only way to get the buildids is to parse
 88	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 89	 */
 90	if (with_hits || perf_data__is_pipe(&data))
 91		perf_session__process_events(session);
 92
 93	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
 94	perf_session__delete(session);
 95out:
 96	return 0;
 97}
 98
 99int cmd_buildid_list(int argc, const char **argv)
100{
101	bool show_kernel = false;
102	bool with_hits = false;
103	bool force = false;
104	const struct option options[] = {
105	OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
106	OPT_STRING('i', "input", &input_name, "file", "input file name"),
107	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
108	OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
109	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
110	OPT_END()
111	};
112	const char * const buildid_list_usage[] = {
113		"perf buildid-list [<options>]",
114		NULL
115	};
116
117	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
118	setup_pager();
119
120	if (show_kernel)
121		return !(sysfs__fprintf_build_id(stdout) > 0);
122
123	return perf_session__list_build_ids(force, with_hits);
124}