/* * 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" 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, 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) > 0); return perf_session__list_build_ids(force, with_hits); }