Merge branch 'mips-next-3.10' of git://git.linux-mips.org/pub/scm/john/linux-john...
[deliverable/linux.git] / tools / perf / builtin-buildid-list.c
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c34984b2
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1/*
2 * builtin-buildid-list.c
3 *
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4 * Builtin buildid-list command: list buildids in perf.data, in the running
5 * kernel and in ELF files.
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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"
7b2567c1 12#include "util/build-id.h"
c34984b2 13#include "util/cache.h"
c34984b2 14#include "util/debug.h"
c34984b2 15#include "util/parse-options.h"
94c744b6 16#include "util/session.h"
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17#include "util/symbol.h"
18
f2add9cd
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19static int sysfs__fprintf_build_id(FILE *fp)
20{
21 u8 kallsyms_build_id[BUILD_ID_SIZE];
22 char sbuild_id[BUILD_ID_SIZE * 2 + 1];
23
24 if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
25 sizeof(kallsyms_build_id)) != 0)
26 return -1;
27
28 build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id),
29 sbuild_id);
30 fprintf(fp, "%s\n", sbuild_id);
31 return 0;
32}
33
7a6f205d 34static int filename__fprintf_build_id(const char *name, FILE *fp)
f2add9cd 35{
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36 u8 build_id[BUILD_ID_SIZE];
37 char sbuild_id[BUILD_ID_SIZE * 2 + 1];
f2add9cd 38
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39 if (filename__read_build_id(name, build_id,
40 sizeof(build_id)) != sizeof(build_id))
41 return 0;
42
43 build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
44 return fprintf(fp, "%s\n", sbuild_id);
45}
46
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47static bool dso__skip_buildid(struct dso *dso, int with_hits)
48{
49 return with_hits && !dso->hit;
50}
51
70cb4e96 52static int perf_session__list_build_ids(bool force, bool with_hits)
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53{
54 struct perf_session *session;
55
166ccc9c 56 symbol__elf_init();
efad1415
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57 /*
58 * See if this is an ELF file first:
59 */
f0bf9107 60 if (filename__fprintf_build_id(input_name, stdout))
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61 goto out;
62
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63 session = perf_session__new(input_name, O_RDONLY, force, false,
64 &build_id__mark_dso_hit_ops);
65 if (session == NULL)
66 return -1;
299c3452
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67 /*
68 * in pipe-mode, the only way to get the buildids is to parse
69 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
70 */
71 if (with_hits || session->fd_pipe)
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72 perf_session__process_events(session, &build_id__mark_dso_hit_ops);
73
417c2ff6 74 perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
1b549504 75 perf_session__delete(session);
f0bf9107 76out:
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77 return 0;
78}
79
1d037ca1
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80int cmd_buildid_list(int argc, const char **argv,
81 const char *prefix __maybe_unused)
c34984b2 82{
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83 bool show_kernel = false;
84 bool with_hits = false;
85 bool force = false;
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86 const struct option options[] = {
87 OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
88 OPT_STRING('i', "input", &input_name, "file", "input file name"),
89 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
90 OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
91 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
92 OPT_END()
93 };
94 const char * const buildid_list_usage[] = {
95 "perf buildid-list [<options>]",
96 NULL
97 };
98
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99 argc = parse_options(argc, argv, options, buildid_list_usage, 0);
100 setup_pager();
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101
102 if (show_kernel)
103 return sysfs__fprintf_build_id(stdout);
104
70cb4e96 105 return perf_session__list_build_ids(force, with_hits);
c34984b2 106}
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