584a268f50
Reduce scope of build_id__mark_dso_hit_ops() to the scope of function perf_session__list_build_ids, its only use, and use perf_tool__init() for the default values. Move perf_event__exit_del_thread() to event.[ch] so it can be used in builtin-buildid-list.c. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: Sun Haiyong <sunhaiyong@loongson.cn> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20240812204720.631678-8-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
174 lines
4.8 KiB
C
174 lines
4.8 KiB
C
/*
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* builtin-buildid-list.c
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*
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* Builtin buildid-list command: list buildids in perf.data, in the running
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* kernel and in ELF files.
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*
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* Copyright (C) 2009, Red Hat Inc.
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* Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
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*/
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#include "builtin.h"
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#include "util/build-id.h"
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#include "util/debug.h"
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#include "util/dso.h"
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#include "util/map.h"
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#include <subcmd/pager.h>
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#include <subcmd/parse-options.h>
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#include "util/session.h"
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#include "util/symbol.h"
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#include "util/data.h"
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#include "util/util.h"
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#include <errno.h>
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#include <inttypes.h>
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#include <linux/err.h>
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static int buildid__map_cb(struct map *map, void *arg __maybe_unused)
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{
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const struct dso *dso = map__dso(map);
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char bid_buf[SBUILD_ID_SIZE];
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const char *dso_long_name = dso__long_name(dso);
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const char *dso_short_name = dso__short_name(dso);
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memset(bid_buf, 0, sizeof(bid_buf));
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if (dso__has_build_id(dso))
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build_id__sprintf(dso__bid_const(dso), bid_buf);
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printf("%s %16" PRIx64 " %16" PRIx64, bid_buf, map__start(map), map__end(map));
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if (dso_long_name != NULL)
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printf(" %s", dso_long_name);
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else if (dso_short_name != NULL)
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printf(" %s", dso_short_name);
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printf("\n");
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return 0;
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}
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static void buildid__show_kernel_maps(void)
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{
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struct machine *machine;
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machine = machine__new_host();
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machine__for_each_kernel_map(machine, buildid__map_cb, NULL);
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machine__delete(machine);
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}
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static int sysfs__fprintf_build_id(FILE *fp)
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{
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char sbuild_id[SBUILD_ID_SIZE];
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int ret;
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ret = sysfs__sprintf_build_id("/", sbuild_id);
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if (ret != sizeof(sbuild_id))
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return ret < 0 ? ret : -EINVAL;
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return fprintf(fp, "%s\n", sbuild_id);
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}
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static int filename__fprintf_build_id(const char *name, FILE *fp)
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{
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char sbuild_id[SBUILD_ID_SIZE];
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int ret;
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ret = filename__sprintf_build_id(name, sbuild_id);
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if (ret != sizeof(sbuild_id))
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return ret < 0 ? ret : -EINVAL;
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return fprintf(fp, "%s\n", sbuild_id);
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}
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static bool dso__skip_buildid(struct dso *dso, int with_hits)
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{
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return with_hits && !dso__hit(dso);
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}
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static int perf_session__list_build_ids(bool force, bool with_hits)
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{
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struct perf_session *session;
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struct perf_data data = {
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.path = input_name,
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.mode = PERF_DATA_MODE_READ,
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.force = force,
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};
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struct perf_tool build_id__mark_dso_hit_ops;
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symbol__elf_init();
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/*
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* See if this is an ELF file first:
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*/
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if (filename__fprintf_build_id(input_name, stdout) > 0)
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goto out;
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perf_tool__init(&build_id__mark_dso_hit_ops, /*ordered_events=*/true);
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build_id__mark_dso_hit_ops.sample = build_id__mark_dso_hit;
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build_id__mark_dso_hit_ops.mmap = perf_event__process_mmap;
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build_id__mark_dso_hit_ops.mmap2 = perf_event__process_mmap2;
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build_id__mark_dso_hit_ops.fork = perf_event__process_fork;
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build_id__mark_dso_hit_ops.exit = perf_event__exit_del_thread;
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build_id__mark_dso_hit_ops.attr = perf_event__process_attr;
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build_id__mark_dso_hit_ops.build_id = perf_event__process_build_id;
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session = perf_session__new(&data, &build_id__mark_dso_hit_ops);
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if (IS_ERR(session))
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return PTR_ERR(session);
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/*
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* We take all buildids when the file contains AUX area tracing data
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* because we do not decode the trace because it would take too long.
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*/
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if (!perf_data__is_pipe(&data) &&
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perf_header__has_feat(&session->header, HEADER_AUXTRACE))
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with_hits = false;
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if (!perf_header__has_feat(&session->header, HEADER_BUILD_ID))
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with_hits = true;
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if (zstd_init(&(session->zstd_data), 0) < 0)
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pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
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/*
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* in pipe-mode, the only way to get the buildids is to parse
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* the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
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*/
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if (with_hits || perf_data__is_pipe(&data))
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perf_session__process_events(session);
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perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
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perf_session__delete(session);
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out:
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return 0;
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}
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int cmd_buildid_list(int argc, const char **argv)
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{
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bool show_kernel = false;
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bool show_kernel_maps = false;
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bool with_hits = false;
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bool force = false;
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const struct option options[] = {
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OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
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OPT_STRING('i', "input", &input_name, "file", "input file name"),
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OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
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OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"),
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OPT_BOOLEAN('m', "kernel-maps", &show_kernel_maps,
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"Show build id of current kernel + modules"),
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OPT_INCR('v', "verbose", &verbose, "be more verbose"),
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OPT_END()
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};
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const char * const buildid_list_usage[] = {
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"perf buildid-list [<options>]",
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NULL
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};
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argc = parse_options(argc, argv, options, buildid_list_usage, 0);
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setup_pager();
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if (show_kernel) {
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return !(sysfs__fprintf_build_id(stdout) > 0);
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} else if (show_kernel_maps) {
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buildid__show_kernel_maps();
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return 0;
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}
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return perf_session__list_build_ids(force, with_hits);
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}
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