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![Ian Rogers](/assets/img/avatar_default.png)
Later changes will add reference count checking for struct map, with dso being the most frequently accessed variable. Add an accessor so that the reference count check is only necessary in one place. Additional changes: - add a dso variable to avoid repeated map__dso calls. - in builtin-mem.c dump_raw_samples, code only partially tested for dso == NULL. Make the possibility of NULL consistent. - in thread.c thread__memcpy fix use of spaces and use tabs. Committer notes: Did missing conversions on these files: tools/perf/arch/powerpc/util/skip-callchain-idx.c tools/perf/arch/powerpc/util/sym-handling.c tools/perf/ui/browsers/hists.c tools/perf/ui/gtk/annotate.c tools/perf/util/cs-etm.c tools/perf/util/thread.c tools/perf/util/unwind-libunwind-local.c tools/perf/util/unwind-libunwind.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: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Hao Luo <haoluo@google.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: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Song Liu <song@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/r/20230320212248.1175731-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
161 lines
4.1 KiB
C
161 lines
4.1 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 "perf.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 <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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memset(bid_buf, 0, sizeof(bid_buf));
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if (dso->has_build_id)
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build_id__sprintf(&dso->bid, bid_buf);
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printf("%s %16" PRIx64 " %16" PRIx64, bid_buf, map->start, map->end);
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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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}
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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;
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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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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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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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