From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/perf/builtin-buildid-list.c | 161 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 tools/perf/builtin-buildid-list.c (limited to 'tools/perf/builtin-buildid-list.c') diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c new file mode 100644 index 000000000..00bfe89f0 --- /dev/null +++ b/tools/perf/builtin-buildid-list.c @@ -0,0 +1,161 @@ +/* + * 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 + */ +#include "builtin.h" +#include "perf.h" +#include "util/build-id.h" +#include "util/debug.h" +#include "util/dso.h" +#include "util/map.h" +#include +#include +#include "util/session.h" +#include "util/symbol.h" +#include "util/data.h" +#include +#include +#include + +static int buildid__map_cb(struct map *map, void *arg __maybe_unused) +{ + const struct dso *dso = map->dso; + char bid_buf[SBUILD_ID_SIZE]; + + memset(bid_buf, 0, sizeof(bid_buf)); + if (dso->has_build_id) + build_id__sprintf(&dso->bid, bid_buf); + printf("%s %16" PRIx64 " %16" PRIx64, bid_buf, map->start, map->end); + if (dso->long_name != NULL) { + printf(" %s", dso->long_name); + } else if (dso->short_name != NULL) { + printf(" %s", dso->short_name); + } + printf("\n"); + + return 0; +} + +static void buildid__show_kernel_maps(void) +{ + struct machine *machine; + + machine = machine__new_host(); + machine__for_each_kernel_map(machine, buildid__map_cb, NULL); + machine__delete(machine); +} + +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 data = { + .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(&data, &build_id__mark_dso_hit_ops); + if (IS_ERR(session)) + return PTR_ERR(session); + + /* + * 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__is_pipe(&data) && + perf_header__has_feat(&session->header, HEADER_AUXTRACE)) + with_hits = false; + + if (!perf_header__has_feat(&session->header, HEADER_BUILD_ID)) + with_hits = true; + + if (zstd_init(&(session->zstd_data), 0) < 0) + pr_warning("Decompression initialization failed. Reported data may be incomplete.\n"); + + /* + * 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__is_pipe(&data)) + 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 show_kernel_maps = 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_BOOLEAN('m', "kernel-maps", &show_kernel_maps, + "Show build id of current kernel + modules"), + OPT_INCR('v', "verbose", &verbose, "be more verbose"), + OPT_END() + }; + const char * const buildid_list_usage[] = { + "perf buildid-list []", + NULL + }; + + argc = parse_options(argc, argv, options, buildid_list_usage, 0); + setup_pager(); + + if (show_kernel) { + return !(sysfs__fprintf_build_id(stdout) > 0); + } else if (show_kernel_maps) { + buildid__show_kernel_maps(); + return 0; + } + + return perf_session__list_build_ids(force, with_hits); +} -- cgit v1.2.3