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124 lines
3.2 KiB
124 lines
3.2 KiB
/* |
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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 <[email protected]> |
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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 <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 <linux/err.h> |
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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 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_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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return perf_session__list_build_ids(force, with_hits); |
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}
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