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/cache.h"
 14#include "util/debug.h"
 15#include "util/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	u8 kallsyms_build_id[BUILD_ID_SIZE];
 23	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
 
 
 
 
 24
 25	if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
 26				 sizeof(kallsyms_build_id)) != 0)
 27		return -1;
 28
 29	build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id),
 30			  sbuild_id);
 31	fprintf(fp, "%s\n", sbuild_id);
 32	return 0;
 33}
 34
 35static int filename__fprintf_build_id(const char *name, FILE *fp)
 36{
 37	u8 build_id[BUILD_ID_SIZE];
 38	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
 39
 40	if (filename__read_build_id(name, build_id,
 41				    sizeof(build_id)) != sizeof(build_id))
 42		return 0;
 43
 44	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
 45	return fprintf(fp, "%s\n", sbuild_id);
 46}
 47
 48static bool dso__skip_buildid(struct dso *dso, int with_hits)
 49{
 50	return with_hits && !dso->hit;
 51}
 52
 53static int perf_session__list_build_ids(bool force, bool with_hits)
 54{
 55	struct perf_session *session;
 56	struct perf_data_file file = {
 57		.path  = input_name,
 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))
 67		goto out;
 68
 69	session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
 
 70	if (session == NULL)
 71		return -1;
 72	/*
 73	 * in pipe-mode, the only way to get the buildids is to parse
 74	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 75	 */
 76	if (with_hits || perf_data_file__is_pipe(&file))
 77		perf_session__process_events(session, &build_id__mark_dso_hit_ops);
 78
 79	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
 
 80	perf_session__delete(session);
 81out:
 82	return 0;
 83}
 84
 85int cmd_buildid_list(int argc, const char **argv,
 86		     const char *prefix __maybe_unused)
 87{
 88	bool show_kernel = false;
 89	bool with_hits = false;
 90	bool force = false;
 91	const struct option options[] = {
 92	OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
 93	OPT_STRING('i', "input", &input_name, "file", "input file name"),
 94	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 95	OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
 96	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 97	OPT_END()
 98	};
 99	const char * const buildid_list_usage[] = {
100		"perf buildid-list [<options>]",
101		NULL
102	};
103
104	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
105	setup_pager();
106
107	if (show_kernel)
108		return sysfs__fprintf_build_id(stdout);
109
110	return perf_session__list_build_ids(force, with_hits);
111}