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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, 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 /*
81 * in pipe-mode, the only way to get the buildids is to parse
82 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
83 */
84 if (with_hits || perf_data__is_pipe(&data))
85 perf_session__process_events(session);
86
87 perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
88 perf_session__delete(session);
89out:
90 return 0;
91}
92
93int cmd_buildid_list(int argc, const char **argv)
94{
95 bool show_kernel = false;
96 bool with_hits = false;
97 bool force = false;
98 const struct option options[] = {
99 OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
100 OPT_STRING('i', "input", &input_name, "file", "input file name"),
101 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
102 OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
103 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
104 OPT_END()
105 };
106 const char * const buildid_list_usage[] = {
107 "perf buildid-list [<options>]",
108 NULL
109 };
110
111 argc = parse_options(argc, argv, options, buildid_list_usage, 0);
112 setup_pager();
113
114 if (show_kernel)
115 return !(sysfs__fprintf_build_id(stdout) > 0);
116
117 return perf_session__list_build_ids(force, with_hits);
118}