417c2ff680
We had that 'with_hits' filter to show just the build ids for DSOs that had samples, make that generic so that we can use it in the upcoming buildid-cache --missing feature, to show just the build ids that are not in the cache. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9nfesdfpnx7zp96yn3tmfbx0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
|
|
* builtin-buildid-list.c
|
|
*
|
|
* Builtin buildid-list command: list buildids in perf.data, in the running
|
|
* kernel and in ELF files.
|
|
*
|
|
* Copyright (C) 2009, Red Hat Inc.
|
|
* Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
*/
|
|
#include "builtin.h"
|
|
#include "perf.h"
|
|
#include "util/build-id.h"
|
|
#include "util/cache.h"
|
|
#include "util/debug.h"
|
|
#include "util/parse-options.h"
|
|
#include "util/session.h"
|
|
#include "util/symbol.h"
|
|
|
|
static int sysfs__fprintf_build_id(FILE *fp)
|
|
{
|
|
u8 kallsyms_build_id[BUILD_ID_SIZE];
|
|
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
|
|
|
|
if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
|
|
sizeof(kallsyms_build_id)) != 0)
|
|
return -1;
|
|
|
|
build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id),
|
|
sbuild_id);
|
|
fprintf(fp, "%s\n", sbuild_id);
|
|
return 0;
|
|
}
|
|
|
|
static int filename__fprintf_build_id(const char *name, FILE *fp)
|
|
{
|
|
u8 build_id[BUILD_ID_SIZE];
|
|
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
|
|
|
|
if (filename__read_build_id(name, build_id,
|
|
sizeof(build_id)) != sizeof(build_id))
|
|
return 0;
|
|
|
|
build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
|
|
return fprintf(fp, "%s\n", sbuild_id);
|
|
}
|
|
|
|
static bool dso__skip_buildid(struct dso *dso, int with_hits)
|
|
{
|
|
return with_hits && !dso->hit;
|
|
}
|
|
|
|
static int perf_session__list_build_ids(bool force, bool with_hits)
|
|
{
|
|
struct perf_session *session;
|
|
|
|
symbol__elf_init();
|
|
/*
|
|
* See if this is an ELF file first:
|
|
*/
|
|
if (filename__fprintf_build_id(input_name, stdout))
|
|
goto out;
|
|
|
|
session = perf_session__new(input_name, O_RDONLY, force, false,
|
|
&build_id__mark_dso_hit_ops);
|
|
if (session == NULL)
|
|
return -1;
|
|
/*
|
|
* in pipe-mode, the only way to get the buildids is to parse
|
|
* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
|
|
*/
|
|
if (with_hits || session->fd_pipe)
|
|
perf_session__process_events(session, &build_id__mark_dso_hit_ops);
|
|
|
|
perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
|
|
perf_session__delete(session);
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
int cmd_buildid_list(int argc, const char **argv,
|
|
const char *prefix __maybe_unused)
|
|
{
|
|
bool show_kernel = false;
|
|
bool with_hits = false;
|
|
bool force = false;
|
|
const struct option options[] = {
|
|
OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
|
|
OPT_STRING('i', "input", &input_name, "file", "input file name"),
|
|
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
|
|
OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
|
|
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
|
|
OPT_END()
|
|
};
|
|
const char * const buildid_list_usage[] = {
|
|
"perf buildid-list [<options>]",
|
|
NULL
|
|
};
|
|
|
|
argc = parse_options(argc, argv, options, buildid_list_usage, 0);
|
|
setup_pager();
|
|
|
|
if (show_kernel)
|
|
return sysfs__fprintf_build_id(stdout);
|
|
|
|
return perf_session__list_build_ids(force, with_hits);
|
|
}
|