| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * builtin-report.c |
| * |
| * Builtin report command: Analyze the perf.data input file, |
| * look up and read DSOs and symbol information and display |
| * a histogram of results, along various sorting keys. |
| */ |
| #include "builtin.h" |
| |
| #include "util/util.h" |
| #include "util/config.h" |
| |
| #include "util/annotate.h" |
| #include "util/color.h" |
| #include <linux/list.h> |
| #include <linux/rbtree.h> |
| #include <linux/err.h> |
| #include "util/symbol.h" |
| #include "util/callchain.h" |
| #include "util/values.h" |
| |
| #include "perf.h" |
| #include "util/debug.h" |
| #include "util/evlist.h" |
| #include "util/evsel.h" |
| #include "util/header.h" |
| #include "util/session.h" |
| #include "util/tool.h" |
| |
| #include <subcmd/parse-options.h> |
| #include <subcmd/exec-cmd.h> |
| #include "util/parse-events.h" |
| |
| #include "util/thread.h" |
| #include "util/sort.h" |
| #include "util/hist.h" |
| #include "util/data.h" |
| #include "arch/common.h" |
| #include "util/time-utils.h" |
| #include "util/auxtrace.h" |
| #include "util/units.h" |
| #include "util/branch.h" |
| |
| #include <dlfcn.h> |
| #include <errno.h> |
| #include <inttypes.h> |
| #include <regex.h> |
| #include <signal.h> |
| #include <linux/bitmap.h> |
| #include <linux/stringify.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <linux/mman.h> |
| |
| struct report { |
| struct perf_tool tool; |
| struct perf_session *session; |
| bool use_tui, use_gtk, use_stdio; |
| bool show_full_info; |
| bool show_threads; |
| bool inverted_callchain; |
| bool mem_mode; |
| bool stats_mode; |
| bool tasks_mode; |
| bool mmaps_mode; |
| bool header; |
| bool header_only; |
| bool nonany_branch_mode; |
| bool group_set; |
| int max_stack; |
| struct perf_read_values show_threads_values; |
| struct annotation_options annotation_opts; |
| const char *pretty_printing_style; |
| const char *cpu_list; |
| const char *symbol_filter_str; |
| const char *time_str; |
| struct perf_time_interval *ptime_range; |
| int range_size; |
| int range_num; |
| float min_percent; |
| u64 nr_entries; |
| u64 queue_size; |
| int socket_filter; |
| DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); |
| struct branch_type_stat brtype_stat; |
| }; |
| |
| static int report__config(const char *var, const char *value, void *cb) |
| { |
| struct report *rep = cb; |
| |
| if (!strcmp(var, "report.group")) { |
| symbol_conf.event_group = perf_config_bool(var, value); |
| return 0; |
| } |
| if (!strcmp(var, "report.percent-limit")) { |
| double pcnt = strtof(value, NULL); |
| |
| rep->min_percent = pcnt; |
| callchain_param.min_percent = pcnt; |
| return 0; |
| } |
| if (!strcmp(var, "report.children")) { |
| symbol_conf.cumulate_callchain = perf_config_bool(var, value); |
| return 0; |
| } |
| if (!strcmp(var, "report.queue-size")) |
| return perf_config_u64(&rep->queue_size, var, value); |
| |
| if (!strcmp(var, "report.sort_order")) { |
| default_sort_order = strdup(value); |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| static int hist_iter__report_callback(struct hist_entry_iter *iter, |
| struct addr_location *al, bool single, |
| void *arg) |
| { |
| int err = 0; |
| struct report *rep = arg; |
| struct hist_entry *he = iter->he; |
| struct perf_evsel *evsel = iter->evsel; |
| struct perf_sample *sample = iter->sample; |
| struct mem_info *mi; |
| struct branch_info *bi; |
| |
| if (!ui__has_annotation()) |
| return 0; |
| |
| hist__account_cycles(sample->branch_stack, al, sample, |
| rep->nonany_branch_mode); |
| |
| if (sort__mode == SORT_MODE__BRANCH) { |
| bi = he->branch_info; |
| err = addr_map_symbol__inc_samples(&bi->from, sample, evsel); |
| if (err) |
| goto out; |
| |
| err = addr_map_symbol__inc_samples(&bi->to, sample, evsel); |
| |
| } else if (rep->mem_mode) { |
| mi = he->mem_info; |
| err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel); |
| if (err) |
| goto out; |
| |
| err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); |
| |
| } else if (symbol_conf.cumulate_callchain) { |
| if (single) |
| err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); |
| } else { |
| err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); |
| } |
| |
| out: |
| return err; |
| } |
| |
| static int hist_iter__branch_callback(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused, |
| bool single __maybe_unused, |
| void *arg) |
| { |
| struct hist_entry *he = iter->he; |
| struct report *rep = arg; |
| struct branch_info *bi; |
| struct perf_sample *sample = iter->sample; |
| struct perf_evsel *evsel = iter->evsel; |
| int err; |
| |
| if (!ui__has_annotation()) |
| return 0; |
| |
| hist__account_cycles(sample->branch_stack, al, sample, |
| rep->nonany_branch_mode); |
| |
| bi = he->branch_info; |
| err = addr_map_symbol__inc_samples(&bi->from, sample, evsel); |
| if (err) |
| goto out; |
| |
| err = addr_map_symbol__inc_samples(&bi->to, sample, evsel); |
| |
| branch_type_count(&rep->brtype_stat, &bi->flags, |
| bi->from.addr, bi->to.addr); |
| |
| out: |
| return err; |
| } |
| |
| static void setup_forced_leader(struct report *report, |
| struct perf_evlist *evlist) |
| { |
| if (report->group_set) |
| perf_evlist__force_leader(evlist); |
| } |
| |
| static int process_feature_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_session *session __maybe_unused) |
| { |
| struct report *rep = container_of(tool, struct report, tool); |
| |
| if (event->feat.feat_id < HEADER_LAST_FEATURE) |
| return perf_event__process_feature(tool, event, session); |
| |
| if (event->feat.feat_id != HEADER_LAST_FEATURE) { |
| pr_err("failed: wrong feature ID: %" PRIu64 "\n", |
| event->feat.feat_id); |
| return -1; |
| } |
| |
| /* |
| * (feat_id = HEADER_LAST_FEATURE) is the end marker which |
| * means all features are received, now we can force the |
| * group if needed. |
| */ |
| setup_forced_leader(rep, session->evlist); |
| return 0; |
| } |
| |
| static int process_sample_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct perf_evsel *evsel, |
| struct machine *machine) |
| { |
| struct report *rep = container_of(tool, struct report, tool); |
| struct addr_location al; |
| struct hist_entry_iter iter = { |
| .evsel = evsel, |
| .sample = sample, |
| .hide_unresolved = symbol_conf.hide_unresolved, |
| .add_entry_cb = hist_iter__report_callback, |
| }; |
| int ret = 0; |
| |
| if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num, |
| sample->time)) { |
| return 0; |
| } |
| |
| if (machine__resolve(machine, &al, sample) < 0) { |
| pr_debug("problem processing %d event, skipping it.\n", |
| event->header.type); |
| return -1; |
| } |
| |
| if (symbol_conf.hide_unresolved && al.sym == NULL) |
| goto out_put; |
| |
| if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) |
| goto out_put; |
| |
| if (sort__mode == SORT_MODE__BRANCH) { |
| /* |
| * A non-synthesized event might not have a branch stack if |
| * branch stacks have been synthesized (using itrace options). |
| */ |
| if (!sample->branch_stack) |
| goto out_put; |
| |
| iter.add_entry_cb = hist_iter__branch_callback; |
| iter.ops = &hist_iter_branch; |
| } else if (rep->mem_mode) { |
| iter.ops = &hist_iter_mem; |
| } else if (symbol_conf.cumulate_callchain) { |
| iter.ops = &hist_iter_cumulative; |
| } else { |
| iter.ops = &hist_iter_normal; |
| } |
| |
| if (al.map != NULL) |
| al.map->dso->hit = 1; |
| |
| ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep); |
| if (ret < 0) |
| pr_debug("problem adding hist entry, skipping event\n"); |
| out_put: |
| addr_location__put(&al); |
| return ret; |
| } |
| |
| static int process_read_event(struct perf_tool *tool, |
| union perf_event *event, |
| struct perf_sample *sample __maybe_unused, |
| struct perf_evsel *evsel, |
| struct machine *machine __maybe_unused) |
| { |
| struct report *rep = container_of(tool, struct report, tool); |
| |
| if (rep->show_threads) { |
| const char *name = evsel ? perf_evsel__name(evsel) : "unknown"; |
| int err = perf_read_values_add_value(&rep->show_threads_values, |
| event->read.pid, event->read.tid, |
| evsel->idx, |
| name, |
| event->read.value); |
| |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /* For pipe mode, sample_type is not currently set */ |
| static int report__setup_sample_type(struct report *rep) |
| { |
| struct perf_session *session = rep->session; |
| u64 sample_type = perf_evlist__combined_sample_type(session->evlist); |
| bool is_pipe = perf_data__is_pipe(session->data); |
| |
| if (session->itrace_synth_opts->callchain || |
| (!is_pipe && |
| perf_header__has_feat(&session->header, HEADER_AUXTRACE) && |
| !session->itrace_synth_opts->set)) |
| sample_type |= PERF_SAMPLE_CALLCHAIN; |
| |
| if (session->itrace_synth_opts->last_branch) |
| sample_type |= PERF_SAMPLE_BRANCH_STACK; |
| |
| if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { |
| if (perf_hpp_list.parent) { |
| ui__error("Selected --sort parent, but no " |
| "callchain data. Did you call " |
| "'perf record' without -g?\n"); |
| return -EINVAL; |
| } |
| if (symbol_conf.use_callchain && |
| !symbol_conf.show_branchflag_count) { |
| ui__error("Selected -g or --branch-history.\n" |
| "But no callchain or branch data.\n" |
| "Did you call 'perf record' without -g or -b?\n"); |
| return -1; |
| } |
| } else if (!callchain_param.enabled && |
| callchain_param.mode != CHAIN_NONE && |
| !symbol_conf.use_callchain) { |
| symbol_conf.use_callchain = true; |
| if (callchain_register_param(&callchain_param) < 0) { |
| ui__error("Can't register callchain params.\n"); |
| return -EINVAL; |
| } |
| } |
| |
| if (symbol_conf.cumulate_callchain) { |
| /* Silently ignore if callchain is missing */ |
| if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) { |
| symbol_conf.cumulate_callchain = false; |
| perf_hpp__cancel_cumulate(); |
| } |
| } |
| |
| if (sort__mode == SORT_MODE__BRANCH) { |
| if (!is_pipe && |
| !(sample_type & PERF_SAMPLE_BRANCH_STACK)) { |
| ui__error("Selected -b but no branch data. " |
| "Did you call perf record without -b?\n"); |
| return -1; |
| } |
| } |
| |
| if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { |
| if ((sample_type & PERF_SAMPLE_REGS_USER) && |
| (sample_type & PERF_SAMPLE_STACK_USER)) { |
| callchain_param.record_mode = CALLCHAIN_DWARF; |
| dwarf_callchain_users = true; |
| } else if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
| callchain_param.record_mode = CALLCHAIN_LBR; |
| else |
| callchain_param.record_mode = CALLCHAIN_FP; |
| } |
| |
| /* ??? handle more cases than just ANY? */ |
| if (!(perf_evlist__combined_branch_type(session->evlist) & |
| PERF_SAMPLE_BRANCH_ANY)) |
| rep->nonany_branch_mode = true; |
| |
| return 0; |
| } |
| |
| static void sig_handler(int sig __maybe_unused) |
| { |
| session_done = 1; |
| } |
| |
| static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep, |
| const char *evname, FILE *fp) |
| { |
| size_t ret; |
| char unit; |
| unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; |
| u64 nr_events = hists->stats.total_period; |
| struct perf_evsel *evsel = hists_to_evsel(hists); |
| char buf[512]; |
| size_t size = sizeof(buf); |
| int socked_id = hists->socket_filter; |
| |
| if (quiet) |
| return 0; |
| |
| if (symbol_conf.filter_relative) { |
| nr_samples = hists->stats.nr_non_filtered_samples; |
| nr_events = hists->stats.total_non_filtered_period; |
| } |
| |
| if (perf_evsel__is_group_event(evsel)) { |
| struct perf_evsel *pos; |
| |
| perf_evsel__group_desc(evsel, buf, size); |
| evname = buf; |
| |
| for_each_group_member(pos, evsel) { |
| const struct hists *pos_hists = evsel__hists(pos); |
| |
| if (symbol_conf.filter_relative) { |
| nr_samples += pos_hists->stats.nr_non_filtered_samples; |
| nr_events += pos_hists->stats.total_non_filtered_period; |
| } else { |
| nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; |
| nr_events += pos_hists->stats.total_period; |
| } |
| } |
| } |
| |
| nr_samples = convert_unit(nr_samples, &unit); |
| ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit); |
| if (evname != NULL) { |
| ret += fprintf(fp, " of event%s '%s'", |
| evsel->nr_members > 1 ? "s" : "", evname); |
| } |
| |
| if (rep->time_str) |
| ret += fprintf(fp, " (time slices: %s)", rep->time_str); |
| |
| if (symbol_conf.show_ref_callgraph && |
| strstr(evname, "call-graph=no")) { |
| ret += fprintf(fp, ", show reference callgraph"); |
| } |
| |
| if (rep->mem_mode) { |
| ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events); |
| ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order); |
| } else |
| ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); |
| |
| if (socked_id > -1) |
| ret += fprintf(fp, "\n# Processor Socket: %d", socked_id); |
| |
| return ret + fprintf(fp, "\n#\n"); |
| } |
| |
| static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, |
| struct report *rep, |
| const char *help) |
| { |
| struct perf_evsel *pos; |
| |
| if (!quiet) { |
| fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", |
| evlist->stats.total_lost_samples); |
| } |
| |
| evlist__for_each_entry(evlist, pos) { |
| struct hists *hists = evsel__hists(pos); |
| const char *evname = perf_evsel__name(pos); |
| |
| if (symbol_conf.event_group && |
| !perf_evsel__is_group_leader(pos)) |
| continue; |
| |
| hists__fprintf_nr_sample_events(hists, rep, evname, stdout); |
| hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout, |
| !(symbol_conf.use_callchain || |
| symbol_conf.show_branchflag_count)); |
| fprintf(stdout, "\n\n"); |
| } |
| |
| if (!quiet) |
| fprintf(stdout, "#\n# (%s)\n#\n", help); |
| |
| if (rep->show_threads) { |
| bool style = !strcmp(rep->pretty_printing_style, "raw"); |
| perf_read_values_display(stdout, &rep->show_threads_values, |
| style); |
| perf_read_values_destroy(&rep->show_threads_values); |
| } |
| |
| if (sort__mode == SORT_MODE__BRANCH) |
| branch_type_stat_display(stdout, &rep->brtype_stat); |
| |
| return 0; |
| } |
| |
| static void report__warn_kptr_restrict(const struct report *rep) |
| { |
| struct map *kernel_map = machine__kernel_map(&rep->session->machines.host); |
| struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; |
| |
| if (perf_evlist__exclude_kernel(rep->session->evlist)) |
| return; |
| |
| if (kernel_map == NULL || |
| (kernel_map->dso->hit && |
| (kernel_kmap->ref_reloc_sym == NULL || |
| kernel_kmap->ref_reloc_sym->addr == 0))) { |
| const char *desc = |
| "As no suitable kallsyms nor vmlinux was found, kernel samples\n" |
| "can't be resolved."; |
| |
| if (kernel_map && map__has_symbols(kernel_map)) { |
| desc = "If some relocation was applied (e.g. " |
| "kexec) symbols may be misresolved."; |
| } |
| |
| ui__warning( |
| "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" |
| "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" |
| "Samples in kernel modules can't be resolved as well.\n\n", |
| desc); |
| } |
| } |
| |
| static int report__gtk_browse_hists(struct report *rep, const char *help) |
| { |
| int (*hist_browser)(struct perf_evlist *evlist, const char *help, |
| struct hist_browser_timer *timer, float min_pcnt); |
| |
| hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists"); |
| |
| if (hist_browser == NULL) { |
| ui__error("GTK browser not found!\n"); |
| return -1; |
| } |
| |
| return hist_browser(rep->session->evlist, help, NULL, rep->min_percent); |
| } |
| |
| static int report__browse_hists(struct report *rep) |
| { |
| int ret; |
| struct perf_session *session = rep->session; |
| struct perf_evlist *evlist = session->evlist; |
| const char *help = perf_tip(system_path(TIPDIR)); |
| |
| if (help == NULL) { |
| /* fallback for people who don't install perf ;-) */ |
| help = perf_tip(DOCDIR); |
| if (help == NULL) |
| help = "Cannot load tips.txt file, please install perf!"; |
| } |
| |
| switch (use_browser) { |
| case 1: |
| ret = perf_evlist__tui_browse_hists(evlist, help, NULL, |
| rep->min_percent, |
| &session->header.env, |
| true, &rep->annotation_opts); |
| /* |
| * Usually "ret" is the last pressed key, and we only |
| * care if the key notifies us to switch data file. |
| */ |
| if (ret != K_SWITCH_INPUT_DATA) |
| ret = 0; |
| break; |
| case 2: |
| ret = report__gtk_browse_hists(rep, help); |
| break; |
| default: |
| ret = perf_evlist__tty_browse_hists(evlist, rep, help); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static int report__collapse_hists(struct report *rep) |
| { |
| struct ui_progress prog; |
| struct perf_evsel *pos; |
| int ret = 0; |
| |
| ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); |
| |
| evlist__for_each_entry(rep->session->evlist, pos) { |
| struct hists *hists = evsel__hists(pos); |
| |
| if (pos->idx == 0) |
| hists->symbol_filter_str = rep->symbol_filter_str; |
| |
| hists->socket_filter = rep->socket_filter; |
| |
| ret = hists__collapse_resort(hists, &prog); |
| if (ret < 0) |
| break; |
| |
| /* Non-group events are considered as leader */ |
| if (symbol_conf.event_group && |
| !perf_evsel__is_group_leader(pos)) { |
| struct hists *leader_hists = evsel__hists(pos->leader); |
| |
| hists__match(leader_hists, hists); |
| hists__link(leader_hists, hists); |
| } |
| } |
| |
| ui_progress__finish(); |
| return ret; |
| } |
| |
| static void report__output_resort(struct report *rep) |
| { |
| struct ui_progress prog; |
| struct perf_evsel *pos; |
| |
| ui_progress__init(&prog, rep->nr_entries, "Sorting events for output..."); |
| |
| evlist__for_each_entry(rep->session->evlist, pos) |
| perf_evsel__output_resort(pos, &prog); |
| |
| ui_progress__finish(); |
| } |
| |
| static void stats_setup(struct report *rep) |
| { |
| memset(&rep->tool, 0, sizeof(rep->tool)); |
| rep->tool.no_warn = true; |
| } |
| |
| static int stats_print(struct report *rep) |
| { |
| struct perf_session *session = rep->session; |
| |
| perf_session__fprintf_nr_events(session, stdout); |
| return 0; |
| } |
| |
| static void tasks_setup(struct report *rep) |
| { |
| memset(&rep->tool, 0, sizeof(rep->tool)); |
| rep->tool.ordered_events = true; |
| if (rep->mmaps_mode) { |
| rep->tool.mmap = perf_event__process_mmap; |
| rep->tool.mmap2 = perf_event__process_mmap2; |
| } |
| rep->tool.comm = perf_event__process_comm; |
| rep->tool.exit = perf_event__process_exit; |
| rep->tool.fork = perf_event__process_fork; |
| rep->tool.no_warn = true; |
| } |
| |
| struct task { |
| struct thread *thread; |
| struct list_head list; |
| struct list_head children; |
| }; |
| |
| static struct task *tasks_list(struct task *task, struct machine *machine) |
| { |
| struct thread *parent_thread, *thread = task->thread; |
| struct task *parent_task; |
| |
| /* Already listed. */ |
| if (!list_empty(&task->list)) |
| return NULL; |
| |
| /* Last one in the chain. */ |
| if (thread->ppid == -1) |
| return task; |
| |
| parent_thread = machine__find_thread(machine, -1, thread->ppid); |
| if (!parent_thread) |
| return ERR_PTR(-ENOENT); |
| |
| parent_task = thread__priv(parent_thread); |
| list_add_tail(&task->list, &parent_task->children); |
| return tasks_list(parent_task, machine); |
| } |
| |
| static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp) |
| { |
| size_t printed = 0; |
| struct rb_node *nd; |
| |
| for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) { |
| struct map *map = rb_entry(nd, struct map, rb_node); |
| |
| printed += fprintf(fp, "%*s %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n", |
| indent, "", map->start, map->end, |
| map->prot & PROT_READ ? 'r' : '-', |
| map->prot & PROT_WRITE ? 'w' : '-', |
| map->prot & PROT_EXEC ? 'x' : '-', |
| map->flags & MAP_SHARED ? 's' : 'p', |
| map->pgoff, |
| map->ino, map->dso->name); |
| } |
| |
| return printed; |
| } |
| |
| static int map_groups__fprintf_task(struct map_groups *mg, int indent, FILE *fp) |
| { |
| return maps__fprintf_task(&mg->maps, indent, fp); |
| } |
| |
| static void task__print_level(struct task *task, FILE *fp, int level) |
| { |
| struct thread *thread = task->thread; |
| struct task *child; |
| int comm_indent = fprintf(fp, " %8d %8d %8d |%*s", |
| thread->pid_, thread->tid, thread->ppid, |
| level, ""); |
| |
| fprintf(fp, "%s\n", thread__comm_str(thread)); |
| |
| map_groups__fprintf_task(thread->mg, comm_indent, fp); |
| |
| if (!list_empty(&task->children)) { |
| list_for_each_entry(child, &task->children, list) |
| task__print_level(child, fp, level + 1); |
| } |
| } |
| |
| static int tasks_print(struct report *rep, FILE *fp) |
| { |
| struct perf_session *session = rep->session; |
| struct machine *machine = &session->machines.host; |
| struct task *tasks, *task; |
| unsigned int nr = 0, itask = 0, i; |
| struct rb_node *nd; |
| LIST_HEAD(list); |
| |
| /* |
| * No locking needed while accessing machine->threads, |
| * because --tasks is single threaded command. |
| */ |
| |
| /* Count all the threads. */ |
| for (i = 0; i < THREADS__TABLE_SIZE; i++) |
| nr += machine->threads[i].nr; |
| |
| tasks = malloc(sizeof(*tasks) * nr); |
| if (!tasks) |
| return -ENOMEM; |
| |
| for (i = 0; i < THREADS__TABLE_SIZE; i++) { |
| struct threads *threads = &machine->threads[i]; |
| |
| for (nd = rb_first(&threads->entries); nd; nd = rb_next(nd)) { |
| task = tasks + itask++; |
| |
| task->thread = rb_entry(nd, struct thread, rb_node); |
| INIT_LIST_HEAD(&task->children); |
| INIT_LIST_HEAD(&task->list); |
| thread__set_priv(task->thread, task); |
| } |
| } |
| |
| /* |
| * Iterate every task down to the unprocessed parent |
| * and link all in task children list. Task with no |
| * parent is added into 'list'. |
| */ |
| for (itask = 0; itask < nr; itask++) { |
| task = tasks + itask; |
| |
| if (!list_empty(&task->list)) |
| continue; |
| |
| task = tasks_list(task, machine); |
| if (IS_ERR(task)) { |
| pr_err("Error: failed to process tasks\n"); |
| free(tasks); |
| return PTR_ERR(task); |
| } |
| |
| if (task) |
| list_add_tail(&task->list, &list); |
| } |
| |
| fprintf(fp, "# %8s %8s %8s %s\n", "pid", "tid", "ppid", "comm"); |
| |
| list_for_each_entry(task, &list, list) |
| task__print_level(task, fp, 0); |
| |
| free(tasks); |
| return 0; |
| } |
| |
| static int __cmd_report(struct report *rep) |
| { |
| int ret; |
| struct perf_session *session = rep->session; |
| struct perf_evsel *pos; |
| struct perf_data *data = session->data; |
| |
| signal(SIGINT, sig_handler); |
| |
| if (rep->cpu_list) { |
| ret = perf_session__cpu_bitmap(session, rep->cpu_list, |
| rep->cpu_bitmap); |
| if (ret) { |
| ui__error("failed to set cpu bitmap\n"); |
| return ret; |
| } |
| session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap; |
| } |
| |
| if (rep->show_threads) { |
| ret = perf_read_values_init(&rep->show_threads_values); |
| if (ret) |
| return ret; |
| } |
| |
| ret = report__setup_sample_type(rep); |
| if (ret) { |
| /* report__setup_sample_type() already showed error message */ |
| return ret; |
| } |
| |
| if (rep->stats_mode) |
| stats_setup(rep); |
| |
| if (rep->tasks_mode) |
| tasks_setup(rep); |
| |
| ret = perf_session__process_events(session); |
| if (ret) { |
| ui__error("failed to process sample\n"); |
| return ret; |
| } |
| |
| if (rep->stats_mode) |
| return stats_print(rep); |
| |
| if (rep->tasks_mode) |
| return tasks_print(rep, stdout); |
| |
| report__warn_kptr_restrict(rep); |
| |
| evlist__for_each_entry(session->evlist, pos) |
| rep->nr_entries += evsel__hists(pos)->nr_entries; |
| |
| if (use_browser == 0) { |
| if (verbose > 3) |
| perf_session__fprintf(session, stdout); |
| |
| if (verbose > 2) |
| perf_session__fprintf_dsos(session, stdout); |
| |
| if (dump_trace) { |
| perf_session__fprintf_nr_events(session, stdout); |
| perf_evlist__fprintf_nr_events(session->evlist, stdout); |
| return 0; |
| } |
| } |
| |
| ret = report__collapse_hists(rep); |
| if (ret) { |
| ui__error("failed to process hist entry\n"); |
| return ret; |
| } |
| |
| if (session_done()) |
| return 0; |
| |
| /* |
| * recalculate number of entries after collapsing since it |
| * might be changed during the collapse phase. |
| */ |
| rep->nr_entries = 0; |
| evlist__for_each_entry(session->evlist, pos) |
| rep->nr_entries += evsel__hists(pos)->nr_entries; |
| |
| if (rep->nr_entries == 0) { |
| ui__error("The %s file has no samples!\n", data->file.path); |
| return 0; |
| } |
| |
| report__output_resort(rep); |
| |
| return report__browse_hists(rep); |
| } |
| |
| static int |
| report_parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
| { |
| struct callchain_param *callchain = opt->value; |
| |
| callchain->enabled = !unset; |
| /* |
| * --no-call-graph |
| */ |
| if (unset) { |
| symbol_conf.use_callchain = false; |
| callchain->mode = CHAIN_NONE; |
| return 0; |
| } |
| |
| return parse_callchain_report_opt(arg); |
| } |
| |
| int |
| report_parse_ignore_callees_opt(const struct option *opt __maybe_unused, |
| const char *arg, int unset __maybe_unused) |
| { |
| if (arg) { |
| int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED); |
| if (err) { |
| char buf[BUFSIZ]; |
| regerror(err, &ignore_callees_regex, buf, sizeof(buf)); |
| pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf); |
| return -1; |
| } |
| have_ignore_callees = 1; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| parse_branch_mode(const struct option *opt, |
| const char *str __maybe_unused, int unset) |
| { |
| int *branch_mode = opt->value; |
| |
| *branch_mode = !unset; |
| return 0; |
| } |
| |
| static int |
| parse_percent_limit(const struct option *opt, const char *str, |
| int unset __maybe_unused) |
| { |
| struct report *rep = opt->value; |
| double pcnt = strtof(str, NULL); |
| |
| rep->min_percent = pcnt; |
| callchain_param.min_percent = pcnt; |
| return 0; |
| } |
| |
| int cmd_report(int argc, const char **argv) |
| { |
| struct perf_session *session; |
| struct itrace_synth_opts itrace_synth_opts = { .set = 0, }; |
| struct stat st; |
| bool has_br_stack = false; |
| int branch_mode = -1; |
| bool branch_call_mode = false; |
| #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" |
| const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" |
| CALLCHAIN_REPORT_HELP |
| "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT; |
| char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; |
| const char * const report_usage[] = { |
| "perf report [<options>]", |
| NULL |
| }; |
| struct report report = { |
| .tool = { |
| .sample = process_sample_event, |
| .mmap = perf_event__process_mmap, |
| .mmap2 = perf_event__process_mmap2, |
| .comm = perf_event__process_comm, |
| .namespaces = perf_event__process_namespaces, |
| .exit = perf_event__process_exit, |
| .fork = perf_event__process_fork, |
| .lost = perf_event__process_lost, |
| .read = process_read_event, |
| .attr = perf_event__process_attr, |
| .tracing_data = perf_event__process_tracing_data, |
| .build_id = perf_event__process_build_id, |
| .id_index = perf_event__process_id_index, |
| .auxtrace_info = perf_event__process_auxtrace_info, |
| .auxtrace = perf_event__process_auxtrace, |
| .feature = process_feature_event, |
| .ordered_events = true, |
| .ordering_requires_timestamps = true, |
| }, |
| .max_stack = PERF_MAX_STACK_DEPTH, |
| .pretty_printing_style = "normal", |
| .socket_filter = -1, |
| .annotation_opts = annotation__default_options, |
| }; |
| const struct option options[] = { |
| OPT_STRING('i', "input", &input_name, "file", |
| "input file name"), |
| OPT_INCR('v', "verbose", &verbose, |
| "be more verbose (show symbol address, etc)"), |
| OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"), |
| OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| "dump raw trace in ASCII"), |
| OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"), |
| OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"), |
| OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"), |
| OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
| "file", "vmlinux pathname"), |
| OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
| "don't load vmlinux even if found"), |
| OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
| "file", "kallsyms pathname"), |
| OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), |
| OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
| "load module symbols - WARNING: use only with -k and LIVE kernel"), |
| OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
| "Show a column with the number of samples"), |
| OPT_BOOLEAN('T', "threads", &report.show_threads, |
| "Show per-thread event counters"), |
| OPT_STRING(0, "pretty", &report.pretty_printing_style, "key", |
| "pretty printing style key: normal raw"), |
| OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"), |
| OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"), |
| OPT_BOOLEAN(0, "stdio", &report.use_stdio, |
| "Use the stdio interface"), |
| OPT_BOOLEAN(0, "header", &report.header, "Show data header."), |
| OPT_BOOLEAN(0, "header-only", &report.header_only, |
| "Show only data header."), |
| OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
| "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
| " Please refer the man page for the complete list."), |
| OPT_STRING('F', "fields", &field_order, "key[,keys...]", |
| "output field(s): overhead, period, sample plus all of sort keys"), |
| OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization, |
| "Show sample percentage for different cpu modes"), |
| OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, |
| "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN), |
| OPT_STRING('p', "parent", &parent_pattern, "regex", |
| "regex filter to identify parent, see: '--sort parent'"), |
| OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, |
| "Only display entries with parent-match"), |
| OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param, |
| "print_type,threshold[,print_limit],order,sort_key[,branch],value", |
| report_callchain_help, &report_parse_callchain_opt, |
| callchain_default_opt), |
| OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
| "Accumulate callchains of children and show total overhead as well"), |
| OPT_INTEGER(0, "max-stack", &report.max_stack, |
| "Set the maximum stack depth when parsing the callchain, " |
| "anything beyond the specified depth will be ignored. " |
| "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
| OPT_BOOLEAN('G', "inverted", &report.inverted_callchain, |
| "alias for inverted call graph"), |
| OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
| "ignore callees of these functions in call graphs", |
| report_parse_ignore_callees_opt), |
| OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
| "only consider symbols in these dsos"), |
| OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
| "only consider symbols in these comms"), |
| OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", |
| "only consider symbols in these pids"), |
| OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", |
| "only consider symbols in these tids"), |
| OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
| "only consider these symbols"), |
| OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter", |
| "only show symbols that (partially) match with this filter"), |
| OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
| "width[,width...]", |
| "don't try to adjust column width, use these fixed values"), |
| OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", |
| "separator for columns, no spaces will be added between " |
| "columns '.' is reserved."), |
| OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved, |
| "Only display entries resolved to a symbol"), |
| OPT_CALLBACK(0, "symfs", NULL, "directory", |
| "Look for files with symbols relative to this directory", |
| symbol__config_symfs), |
| OPT_STRING('C', "cpu", &report.cpu_list, "cpu", |
| "list of cpus to profile"), |
| OPT_BOOLEAN('I', "show-info", &report.show_full_info, |
| "Display extended information about perf.data file"), |
| OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src, |
| "Interleave source code with assembly code (default)"), |
| OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw, |
| "Display raw encoding of assembly instructions (default)"), |
| OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style", |
| "Specify disassembler style (e.g. -M intel for intel syntax)"), |
| OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
| "Show a column with the sum of periods"), |
| OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set, |
| "Show event group information together"), |
| OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "", |
| "use branch records for per branch histogram filling", |
| parse_branch_mode), |
| OPT_BOOLEAN(0, "branch-history", &branch_call_mode, |
| "add last branch records to call history"), |
| OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path", |
| "objdump binary to use for disassembly and annotations"), |
| OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, |
| "Disable symbol demangling"), |
| OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
| "Enable kernel symbol demangling"), |
| OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), |
| OPT_CALLBACK(0, "percent-limit", &report, "percent", |
| "Don't show entries under that percent", parse_percent_limit), |
| OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
| "how to display percentage of filtered entries", parse_filter_percentage), |
| OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", |
| "Instruction Tracing options", |
| itrace_parse_synth_opts), |
| OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, |
| "Show full source file name path for source lines"), |
| OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph, |
| "Show callgraph from reference event"), |
| OPT_INTEGER(0, "socket-filter", &report.socket_filter, |
| "only show processor socket that match with this filter"), |
| OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
| "Show raw trace event output (do not use print fmt or plugins)"), |
| OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
| "Show entries in a hierarchy"), |
| OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode", |
| "'always' (default), 'never' or 'auto' only applicable to --stdio mode", |
| stdio__config_color, "always"), |
| OPT_STRING(0, "time", &report.time_str, "str", |
| "Time span of interest (start,stop)"), |
| OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name, |
| "Show inline function"), |
| OPT_END() |
| }; |
| struct perf_data data = { |
| .mode = PERF_DATA_MODE_READ, |
| }; |
| int ret = hists__init(); |
| |
| if (ret < 0) |
| return ret; |
| |
| ret = perf_config(report__config, &report); |
| if (ret) |
| return ret; |
| |
| argc = parse_options(argc, argv, options, report_usage, 0); |
| if (argc) { |
| /* |
| * Special case: if there's an argument left then assume that |
| * it's a symbol filter: |
| */ |
| if (argc > 1) |
| usage_with_options(report_usage, options); |
| |
| report.symbol_filter_str = argv[0]; |
| } |
| |
| if (report.mmaps_mode) |
| report.tasks_mode = true; |
| |
| if (quiet) |
| perf_quiet_option(); |
| |
| if (symbol_conf.vmlinux_name && |
| access(symbol_conf.vmlinux_name, R_OK)) { |
| pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name); |
| return -EINVAL; |
| } |
| if (symbol_conf.kallsyms_name && |
| access(symbol_conf.kallsyms_name, R_OK)) { |
| pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name); |
| return -EINVAL; |
| } |
| |
| if (report.inverted_callchain) |
| callchain_param.order = ORDER_CALLER; |
| if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
| callchain_param.order = ORDER_CALLER; |
| |
| if (itrace_synth_opts.callchain && |
| (int)itrace_synth_opts.callchain_sz > report.max_stack) |
| report.max_stack = itrace_synth_opts.callchain_sz; |
| |
| if (!input_name || !strlen(input_name)) { |
| if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) |
| input_name = "-"; |
| else |
| input_name = "perf.data"; |
| } |
| |
| data.file.path = input_name; |
| data.force = symbol_conf.force; |
| |
| repeat: |
| session = perf_session__new(&data, false, &report.tool); |
| if (session == NULL) |
| return -1; |
| |
| if (report.queue_size) { |
| ordered_events__set_alloc_size(&session->ordered_events, |
| report.queue_size); |
| } |
| |
| session->itrace_synth_opts = &itrace_synth_opts; |
| |
| report.session = session; |
| |
| has_br_stack = perf_header__has_feat(&session->header, |
| HEADER_BRANCH_STACK); |
| |
| setup_forced_leader(&report, session->evlist); |
| |
| if (itrace_synth_opts.last_branch) |
| has_br_stack = true; |
| |
| if (has_br_stack && branch_call_mode) |
| symbol_conf.show_branchflag_count = true; |
| |
| memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat)); |
| |
| /* |
| * Branch mode is a tristate: |
| * -1 means default, so decide based on the file having branch data. |
| * 0/1 means the user chose a mode. |
| */ |
| if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) && |
| !branch_call_mode) { |
| sort__mode = SORT_MODE__BRANCH; |
| symbol_conf.cumulate_callchain = false; |
| } |
| if (branch_call_mode) { |
| callchain_param.key = CCKEY_ADDRESS; |
| callchain_param.branch_callstack = 1; |
| symbol_conf.use_callchain = true; |
| callchain_register_param(&callchain_param); |
| if (sort_order == NULL) |
| sort_order = "srcline,symbol,dso"; |
| } |
| |
| if (report.mem_mode) { |
| if (sort__mode == SORT_MODE__BRANCH) { |
| pr_err("branch and mem mode incompatible\n"); |
| goto error; |
| } |
| sort__mode = SORT_MODE__MEMORY; |
| symbol_conf.cumulate_callchain = false; |
| } |
| |
| if (symbol_conf.report_hierarchy) { |
| /* disable incompatible options */ |
| symbol_conf.cumulate_callchain = false; |
| |
| if (field_order) { |
| pr_err("Error: --hierarchy and --fields options cannot be used together\n"); |
| parse_options_usage(report_usage, options, "F", 1); |
| parse_options_usage(NULL, options, "hierarchy", 0); |
| goto error; |
| } |
| |
| perf_hpp_list.need_collapse = true; |
| } |
| |
| if (report.use_stdio) |
| use_browser = 0; |
| else if (report.use_tui) |
| use_browser = 1; |
| else if (report.use_gtk) |
| use_browser = 2; |
| |
| /* Force tty output for header output and per-thread stat. */ |
| if (report.header || report.header_only || report.show_threads) |
| use_browser = 0; |
| if (report.header || report.header_only) |
| report.tool.show_feat_hdr = SHOW_FEAT_HEADER; |
| if (report.show_full_info) |
| report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO; |
| if (report.stats_mode || report.tasks_mode) |
| use_browser = 0; |
| if (report.stats_mode && report.tasks_mode) { |
| pr_err("Error: --tasks and --mmaps can't be used together with --stats\n"); |
| goto error; |
| } |
| |
| if (strcmp(input_name, "-") != 0) |
| setup_browser(true); |
| else |
| use_browser = 0; |
| |
| if (setup_sorting(session->evlist) < 0) { |
| if (sort_order) |
| parse_options_usage(report_usage, options, "s", 1); |
| if (field_order) |
| parse_options_usage(sort_order ? NULL : report_usage, |
| options, "F", 1); |
| goto error; |
| } |
| |
| if ((report.header || report.header_only) && !quiet) { |
| perf_session__fprintf_info(session, stdout, |
| report.show_full_info); |
| if (report.header_only) { |
| ret = 0; |
| goto error; |
| } |
| } else if (use_browser == 0 && !quiet && |
| !report.stats_mode && !report.tasks_mode) { |
| fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n", |
| stdout); |
| } |
| |
| /* |
| * Only in the TUI browser we are doing integrated annotation, |
| * so don't allocate extra space that won't be used in the stdio |
| * implementation. |
| */ |
| if (ui__has_annotation()) { |
| ret = symbol__annotation_init(); |
| if (ret < 0) |
| goto error; |
| /* |
| * For searching by name on the "Browse map details". |
| * providing it only in verbose mode not to bloat too |
| * much struct symbol. |
| */ |
| if (verbose > 0) { |
| /* |
| * XXX: Need to provide a less kludgy way to ask for |
| * more space per symbol, the u32 is for the index on |
| * the ui browser. |
| * See symbol__browser_index. |
| */ |
| symbol_conf.priv_size += sizeof(u32); |
| symbol_conf.sort_by_name = true; |
| } |
| annotation_config__init(); |
| } |
| |
| if (symbol__init(&session->header.env) < 0) |
| goto error; |
| |
| report.ptime_range = perf_time__range_alloc(report.time_str, |
| &report.range_size); |
| if (!report.ptime_range) { |
| ret = -ENOMEM; |
| goto error; |
| } |
| |
| if (perf_time__parse_str(report.ptime_range, report.time_str) != 0) { |
| if (session->evlist->first_sample_time == 0 && |
| session->evlist->last_sample_time == 0) { |
| pr_err("HINT: no first/last sample time found in perf data.\n" |
| "Please use latest perf binary to execute 'perf record'\n" |
| "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n"); |
| ret = -EINVAL; |
| goto error; |
| } |
| |
| report.range_num = perf_time__percent_parse_str( |
| report.ptime_range, report.range_size, |
| report.time_str, |
| session->evlist->first_sample_time, |
| session->evlist->last_sample_time); |
| |
| if (report.range_num < 0) { |
| pr_err("Invalid time string\n"); |
| ret = -EINVAL; |
| goto error; |
| } |
| } else { |
| report.range_num = 1; |
| } |
| |
| if (session->tevent.pevent && |
| pevent_set_function_resolver(session->tevent.pevent, |
| machine__resolve_kernel_addr, |
| &session->machines.host) < 0) { |
| pr_err("%s: failed to set libtraceevent function resolver\n", |
| __func__); |
| return -1; |
| } |
| |
| sort__setup_elide(stdout); |
| |
| ret = __cmd_report(&report); |
| if (ret == K_SWITCH_INPUT_DATA) { |
| perf_session__delete(session); |
| goto repeat; |
| } else |
| ret = 0; |
| |
| error: |
| zfree(&report.ptime_range); |
| |
| perf_session__delete(session); |
| return ret; |
| } |