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 int sysfs__fprintf_build_id(FILE *fp
)
21 u8 kallsyms_build_id
[BUILD_ID_SIZE
];
22 char sbuild_id
[BUILD_ID_SIZE
* 2 + 1];
24 if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id
,
25 sizeof(kallsyms_build_id
)) != 0)
28 build_id__sprintf(kallsyms_build_id
, sizeof(kallsyms_build_id
),
30 fprintf(fp
, "%s\n", sbuild_id
);
34 static int filename__fprintf_build_id(const char *name
, FILE *fp
)
36 u8 build_id
[BUILD_ID_SIZE
];
37 char sbuild_id
[BUILD_ID_SIZE
* 2 + 1];
39 if (filename__read_build_id(name
, build_id
,
40 sizeof(build_id
)) != sizeof(build_id
))
43 build_id__sprintf(build_id
, sizeof(build_id
), sbuild_id
);
44 return fprintf(fp
, "%s\n", sbuild_id
);
47 static bool dso__skip_buildid(struct dso
*dso
, int with_hits
)
49 return with_hits
&& !dso
->hit
;
52 static int perf_session__list_build_ids(bool force
, bool with_hits
)
54 struct perf_session
*session
;
58 * See if this is an ELF file first:
60 if (filename__fprintf_build_id(input_name
, stdout
))
63 session
= perf_session__new(input_name
, O_RDONLY
, force
, false,
64 &build_id__mark_dso_hit_ops
);
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
71 if (with_hits
|| session
->fd_pipe
)
72 perf_session__process_events(session
, &build_id__mark_dso_hit_ops
);
74 perf_session__fprintf_dsos_buildid(session
, stdout
, dso__skip_buildid
, with_hits
);
75 perf_session__delete(session
);
80 int cmd_buildid_list(int argc
, const char **argv
,
81 const char *prefix __maybe_unused
)
83 bool show_kernel
= false;
84 bool with_hits
= false;
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"),
94 const char * const buildid_list_usage
[] = {
95 "perf buildid-list [<options>]",
99 argc
= parse_options(argc
, argv
, options
, buildid_list_usage
, 0);
103 return sysfs__fprintf_build_id(stdout
);
105 return perf_session__list_build_ids(force
, with_hits
);