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Commit | Line | Data |
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c34984b2 ACM |
1 | /* |
2 | * builtin-buildid-list.c | |
3 | * | |
7a6f205d ACM |
4 | * Builtin buildid-list command: list buildids in perf.data, in the running |
5 | * kernel and in ELF files. | |
c34984b2 ACM |
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" |
c34984b2 ACM |
17 | #include "util/symbol.h" |
18 | ||
f2add9cd ACM |
19 | static 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 | 34 | static int filename__fprintf_build_id(const char *name, FILE *fp) |
f2add9cd | 35 | { |
7a6f205d ACM |
36 | u8 build_id[BUILD_ID_SIZE]; |
37 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
f2add9cd | 38 | |
7a6f205d ACM |
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 | ||
70cb4e96 | 47 | static int perf_session__list_build_ids(bool force, bool with_hits) |
1b549504 RR |
48 | { |
49 | struct perf_session *session; | |
50 | ||
166ccc9c | 51 | symbol__elf_init(); |
efad1415 | 52 | |
1b549504 RR |
53 | session = perf_session__new(input_name, O_RDONLY, force, false, |
54 | &build_id__mark_dso_hit_ops); | |
55 | if (session == NULL) | |
56 | return -1; | |
57 | ||
efad1415 RR |
58 | /* |
59 | * See if this is an ELF file first: | |
60 | */ | |
61 | if (filename__fprintf_build_id(session->filename, stdout)) | |
62 | goto out; | |
63 | ||
299c3452 SE |
64 | /* |
65 | * in pipe-mode, the only way to get the buildids is to parse | |
66 | * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID | |
67 | */ | |
68 | if (with_hits || session->fd_pipe) | |
1b549504 RR |
69 | perf_session__process_events(session, &build_id__mark_dso_hit_ops); |
70 | ||
71 | perf_session__fprintf_dsos_buildid(session, stdout, with_hits); | |
efad1415 | 72 | out: |
1b549504 RR |
73 | perf_session__delete(session); |
74 | return 0; | |
75 | } | |
76 | ||
1d037ca1 IT |
77 | int cmd_buildid_list(int argc, const char **argv, |
78 | const char *prefix __maybe_unused) | |
c34984b2 | 79 | { |
6ee41497 ACM |
80 | bool show_kernel = false; |
81 | bool with_hits = false; | |
82 | bool force = false; | |
6ee41497 ACM |
83 | const struct option options[] = { |
84 | OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"), | |
85 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
86 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
87 | OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"), | |
88 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), | |
89 | OPT_END() | |
90 | }; | |
91 | const char * const buildid_list_usage[] = { | |
92 | "perf buildid-list [<options>]", | |
93 | NULL | |
94 | }; | |
95 | ||
c34984b2 ACM |
96 | argc = parse_options(argc, argv, options, buildid_list_usage, 0); |
97 | setup_pager(); | |
6ee41497 ACM |
98 | |
99 | if (show_kernel) | |
100 | return sysfs__fprintf_build_id(stdout); | |
101 | ||
70cb4e96 | 102 | return perf_session__list_build_ids(force, with_hits); |
c34984b2 | 103 | } |