2 * builtin-buildid-list.c
4 * Builtin buildid-list command: list buildids in perf.data, in the running
5 * kernel and in ELF files.
7 * Copyright (C) 2009, Red Hat Inc.
8 * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
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"
19 static const char *input_name
;
21 static bool show_kernel
;
22 static bool with_hits
;
24 static const char * const buildid_list_usage
[] = {
25 "perf buildid-list [<options>]",
29 static const struct option options
[] = {
30 OPT_BOOLEAN('H', "with-hits", &with_hits
, "Show only DSOs with hits"),
31 OPT_STRING('i', "input", &input_name
, "file",
33 OPT_BOOLEAN('f', "force", &force
, "don't complain, do it"),
34 OPT_BOOLEAN('k', "kernel", &show_kernel
, "Show current kernel build id"),
35 OPT_INCR('v', "verbose", &verbose
,
40 static int sysfs__fprintf_build_id(FILE *fp
)
42 u8 kallsyms_build_id
[BUILD_ID_SIZE
];
43 char sbuild_id
[BUILD_ID_SIZE
* 2 + 1];
45 if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id
,
46 sizeof(kallsyms_build_id
)) != 0)
49 build_id__sprintf(kallsyms_build_id
, sizeof(kallsyms_build_id
),
51 fprintf(fp
, "%s\n", sbuild_id
);
55 static int filename__fprintf_build_id(const char *name
, FILE *fp
)
57 u8 build_id
[BUILD_ID_SIZE
];
58 char sbuild_id
[BUILD_ID_SIZE
* 2 + 1];
60 if (filename__read_build_id(name
, build_id
,
61 sizeof(build_id
)) != sizeof(build_id
))
64 build_id__sprintf(build_id
, sizeof(build_id
), sbuild_id
);
65 return fprintf(fp
, "%s\n", sbuild_id
);
68 static int perf_session__list_build_ids(void)
70 struct perf_session
*session
;
74 session
= perf_session__new(input_name
, O_RDONLY
, force
, false,
75 &build_id__mark_dso_hit_ops
);
80 * See if this is an ELF file first:
82 if (filename__fprintf_build_id(session
->filename
, stdout
))
86 * in pipe-mode, the only way to get the buildids is to parse
87 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
89 if (with_hits
|| session
->fd_pipe
)
90 perf_session__process_events(session
, &build_id__mark_dso_hit_ops
);
92 perf_session__fprintf_dsos_buildid(session
, stdout
, with_hits
);
94 perf_session__delete(session
);
98 static int __cmd_buildid_list(void)
101 return sysfs__fprintf_build_id(stdout
);
103 return perf_session__list_build_ids();
106 int cmd_buildid_list(int argc
, const char **argv
,
107 const char *prefix __maybe_unused
)
109 argc
= parse_options(argc
, argv
, options
, buildid_list_usage
, 0);
111 return __cmd_buildid_list();