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 <subcmd/parse-options.h>
16 #include "util/session.h"
17 #include "util/symbol.h"
18 #include "util/data.h"
21 static int sysfs__fprintf_build_id(FILE *fp
)
23 char sbuild_id
[SBUILD_ID_SIZE
];
26 ret
= sysfs__sprintf_build_id("/", sbuild_id
);
27 if (ret
!= sizeof(sbuild_id
))
28 return ret
< 0 ? ret
: -EINVAL
;
30 return fprintf(fp
, "%s\n", sbuild_id
);
33 static int filename__fprintf_build_id(const char *name
, FILE *fp
)
35 char sbuild_id
[SBUILD_ID_SIZE
];
38 ret
= filename__sprintf_build_id(name
, sbuild_id
);
39 if (ret
!= sizeof(sbuild_id
))
40 return ret
< 0 ? ret
: -EINVAL
;
42 return fprintf(fp
, "%s\n", sbuild_id
);
45 static bool dso__skip_buildid(struct dso
*dso
, int with_hits
)
47 return with_hits
&& !dso
->hit
;
50 static int perf_session__list_build_ids(bool force
, bool with_hits
)
52 struct perf_session
*session
;
53 struct perf_data_file file
= {
55 .mode
= PERF_DATA_MODE_READ
,
61 * See if this is an ELF file first:
63 if (filename__fprintf_build_id(input_name
, stdout
) > 0)
66 session
= perf_session__new(&file
, false, &build_id__mark_dso_hit_ops
);
71 * We take all buildids when the file contains AUX area tracing data
72 * because we do not decode the trace because it would take too long.
74 if (!perf_data_file__is_pipe(&file
) &&
75 perf_header__has_feat(&session
->header
, HEADER_AUXTRACE
))
79 * in pipe-mode, the only way to get the buildids is to parse
80 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
82 if (with_hits
|| perf_data_file__is_pipe(&file
))
83 perf_session__process_events(session
);
85 perf_session__fprintf_dsos_buildid(session
, stdout
, dso__skip_buildid
, with_hits
);
86 perf_session__delete(session
);
91 int cmd_buildid_list(int argc
, const char **argv
)
93 bool show_kernel
= false;
94 bool with_hits
= false;
96 const struct option options
[] = {
97 OPT_BOOLEAN('H', "with-hits", &with_hits
, "Show only DSOs with hits"),
98 OPT_STRING('i', "input", &input_name
, "file", "input file name"),
99 OPT_BOOLEAN('f', "force", &force
, "don't complain, do it"),
100 OPT_BOOLEAN('k', "kernel", &show_kernel
, "Show current kernel build id"),
101 OPT_INCR('v', "verbose", &verbose
, "be more verbose"),
104 const char * const buildid_list_usage
[] = {
105 "perf buildid-list [<options>]",
109 argc
= parse_options(argc
, argv
, options
, buildid_list_usage
, 0);
113 return !(sysfs__fprintf_build_id(stdout
) > 0);
115 return perf_session__list_build_ids(force
, with_hits
);