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 | ||
7a6f205d ACM |
19 | #include <libelf.h> |
20 | ||
efad1415 | 21 | static const char *input_name; |
c0555642 | 22 | static bool force; |
f2add9cd | 23 | static bool show_kernel; |
88d3d9b7 | 24 | static bool with_hits; |
c34984b2 | 25 | |
0422a4fc | 26 | static const char * const buildid_list_usage[] = { |
b9b1e1c7 | 27 | "perf buildid-list [<options>]", |
c34984b2 ACM |
28 | NULL |
29 | }; | |
30 | ||
31 | static const struct option options[] = { | |
88d3d9b7 | 32 | OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"), |
c34984b2 ACM |
33 | OPT_STRING('i', "input", &input_name, "file", |
34 | "input file name"), | |
35 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), | |
f2add9cd | 36 | OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"), |
c0555642 | 37 | OPT_INCR('v', "verbose", &verbose, |
1124ba73 | 38 | "be more verbose"), |
c34984b2 ACM |
39 | OPT_END() |
40 | }; | |
41 | ||
f2add9cd ACM |
42 | static int sysfs__fprintf_build_id(FILE *fp) |
43 | { | |
44 | u8 kallsyms_build_id[BUILD_ID_SIZE]; | |
45 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
46 | ||
47 | if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id, | |
48 | sizeof(kallsyms_build_id)) != 0) | |
49 | return -1; | |
50 | ||
51 | build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id), | |
52 | sbuild_id); | |
53 | fprintf(fp, "%s\n", sbuild_id); | |
54 | return 0; | |
55 | } | |
56 | ||
7a6f205d | 57 | static int filename__fprintf_build_id(const char *name, FILE *fp) |
f2add9cd | 58 | { |
7a6f205d ACM |
59 | u8 build_id[BUILD_ID_SIZE]; |
60 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
f2add9cd | 61 | |
7a6f205d ACM |
62 | if (filename__read_build_id(name, build_id, |
63 | sizeof(build_id)) != sizeof(build_id)) | |
64 | return 0; | |
65 | ||
66 | build_id__sprintf(build_id, sizeof(build_id), sbuild_id); | |
67 | return fprintf(fp, "%s\n", sbuild_id); | |
68 | } | |
69 | ||
1b549504 RR |
70 | static int perf_session__list_build_ids(void) |
71 | { | |
72 | struct perf_session *session; | |
73 | ||
efad1415 RR |
74 | elf_version(EV_CURRENT); |
75 | ||
1b549504 RR |
76 | session = perf_session__new(input_name, O_RDONLY, force, false, |
77 | &build_id__mark_dso_hit_ops); | |
78 | if (session == NULL) | |
79 | return -1; | |
80 | ||
efad1415 RR |
81 | /* |
82 | * See if this is an ELF file first: | |
83 | */ | |
84 | if (filename__fprintf_build_id(session->filename, stdout)) | |
85 | goto out; | |
86 | ||
1b549504 RR |
87 | if (with_hits) |
88 | perf_session__process_events(session, &build_id__mark_dso_hit_ops); | |
89 | ||
90 | perf_session__fprintf_dsos_buildid(session, stdout, with_hits); | |
efad1415 | 91 | out: |
1b549504 RR |
92 | perf_session__delete(session); |
93 | return 0; | |
94 | } | |
95 | ||
7a6f205d ACM |
96 | static int __cmd_buildid_list(void) |
97 | { | |
f2add9cd ACM |
98 | if (show_kernel) |
99 | return sysfs__fprintf_build_id(stdout); | |
100 | ||
101 | return perf_session__list_build_ids(); | |
102 | } | |
103 | ||
c34984b2 ACM |
104 | int cmd_buildid_list(int argc, const char **argv, const char *prefix __used) |
105 | { | |
106 | argc = parse_options(argc, argv, options, buildid_list_usage, 0); | |
107 | setup_pager(); | |
108 | return __cmd_buildid_list(); | |
109 | } |