| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * 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 <subcmd/parse-options.h> |
| #include "util/session.h" |
| #include "util/symbol.h" |
| #include "util/data.h" |
| #include <errno.h> |
| |
| static int sysfs__fprintf_build_id(FILE *fp) |
| { |
| char sbuild_id[SBUILD_ID_SIZE]; |
| int ret; |
| |
| ret = sysfs__sprintf_build_id("/", sbuild_id); |
| if (ret != sizeof(sbuild_id)) |
| return ret < 0 ? ret : -EINVAL; |
| |
| return fprintf(fp, "%s\n", sbuild_id); |
| } |
| |
| static int filename__fprintf_build_id(const char *name, FILE *fp) |
| { |
| char sbuild_id[SBUILD_ID_SIZE]; |
| int ret; |
| |
| ret = filename__sprintf_build_id(name, sbuild_id); |
| if (ret != sizeof(sbuild_id)) |
| return ret < 0 ? ret : -EINVAL; |
| |
| 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; |
| struct perf_data_file file = { |
| .path = input_name, |
| .mode = PERF_DATA_MODE_READ, |
| .force = force, |
| }; |
| |
| symbol__elf_init(); |
| /* |
| * See if this is an ELF file first: |
| */ |
| if (filename__fprintf_build_id(input_name, stdout) > 0) |
| goto out; |
| |
| session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops); |
| if (session == NULL) |
| return -1; |
| |
| /* |
| * We take all buildids when the file contains AUX area tracing data |
| * because we do not decode the trace because it would take too long. |
| */ |
| if (!perf_data_file__is_pipe(&file) && |
| perf_header__has_feat(&session->header, HEADER_AUXTRACE)) |
| with_hits = false; |
| |
| /* |
| * 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 || perf_data_file__is_pipe(&file)) |
| perf_session__process_events(session); |
| |
| 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) |
| { |
| 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) > 0); |
| |
| return perf_session__list_build_ids(force, with_hits); |
| } |