diff options
Diffstat (limited to 'kernel/tools/perf/builtin-report.c')
| -rw-r--r-- | kernel/tools/perf/builtin-report.c | 877 |
1 files changed, 877 insertions, 0 deletions
diff --git a/kernel/tools/perf/builtin-report.c b/kernel/tools/perf/builtin-report.c new file mode 100644 index 000000000..b63aeda71 --- /dev/null +++ b/kernel/tools/perf/builtin-report.c @@ -0,0 +1,877 @@ +/* + * 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/cache.h" + +#include "util/annotate.h" +#include "util/color.h" +#include <linux/list.h> +#include <linux/rbtree.h> +#include "util/symbol.h" +#include "util/callchain.h" +#include "util/strlist.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 "util/parse-options.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 <dlfcn.h> +#include <linux/bitmap.h> + +struct report { + struct perf_tool tool; + struct perf_session *session; + bool force, use_tui, use_gtk, use_stdio; + bool hide_unresolved; + bool dont_use_callchains; + bool show_full_info; + bool show_threads; + bool inverted_callchain; + bool mem_mode; + bool header; + bool header_only; + int max_stack; + struct perf_read_values show_threads_values; + const char *pretty_printing_style; + const char *cpu_list; + const char *symbol_filter_str; + float min_percent; + u64 nr_entries; + u64 queue_size; + DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); +}; + +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")) { + rep->min_percent = strtof(value, NULL); + return 0; + } + if (!strcmp(var, "report.children")) { + symbol_conf.cumulate_callchain = perf_config_bool(var, value); + return 0; + } + if (!strcmp(var, "report.queue-size")) { + rep->queue_size = perf_config_u64(var, value); + return 0; + } + + return perf_default_config(var, value, cb); +} + +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 mem_info *mi; + struct branch_info *bi; + + if (!ui__has_annotation()) + return 0; + + if (sort__mode == SORT_MODE__BRANCH) { + bi = he->branch_info; + err = addr_map_symbol__inc_samples(&bi->from, evsel->idx); + if (err) + goto out; + + err = addr_map_symbol__inc_samples(&bi->to, evsel->idx); + + } else if (rep->mem_mode) { + mi = he->mem_info; + err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx); + if (err) + goto out; + + err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); + + } else if (symbol_conf.cumulate_callchain) { + if (single) + err = hist_entry__inc_addr_samples(he, evsel->idx, + al->addr); + } else { + err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); + } + +out: + return err; +} + +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 = { + .hide_unresolved = rep->hide_unresolved, + .add_entry_cb = hist_iter__report_callback, + }; + int ret; + + if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { + pr_debug("problem processing %d event, skipping it.\n", + event->header.type); + return -1; + } + + if (rep->hide_unresolved && al.sym == NULL) + return 0; + + if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) + return 0; + + if (sort__mode == SORT_MODE__BRANCH) + 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, evsel, sample, rep->max_stack, + rep); + if (ret < 0) + pr_debug("problem adding hist entry, skipping event\n"); + + 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"; + perf_read_values_add_value(&rep->show_threads_values, + event->read.pid, event->read.tid, + event->read.id, + name, + event->read.value); + } + + dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid, + evsel ? perf_evsel__name(evsel) : "FAIL", + event->read.value); + + 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_file__is_pipe(session->file); + + if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { + if (sort__has_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) { + ui__error("Selected -g or --branch-history but no " + "callchain data. Did\n" + "you call 'perf record' without -g?\n"); + return -1; + } + } else if (!rep->dont_use_callchains && + 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; + else if (sample_type & PERF_SAMPLE_BRANCH_STACK) + callchain_param.record_mode = CALLCHAIN_LBR; + else + callchain_param.record_mode = CALLCHAIN_FP; + } + 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); + + 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'", evname); + + 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); + 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; + + evlist__for_each(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, true, 0, 0, rep->min_percent, stdout); + fprintf(stdout, "\n\n"); + } + + if (sort_order == NULL && + parent_pattern == default_parent_pattern) { + 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); + } + } + + return 0; +} + +static void report__warn_kptr_restrict(const struct report *rep) +{ + struct map *kernel_map = rep->session->machines.host.vmlinux_maps[MAP__FUNCTION]; + struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; + + 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) { + const struct dso *kdso = kernel_map->dso; + if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { + 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 = "For a higher level overview, try: perf report --sort comm,dso"; + + switch (use_browser) { + case 1: + ret = perf_evlist__tui_browse_hists(evlist, help, NULL, + rep->min_percent, + &session->header.env); + /* + * 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 void report__collapse_hists(struct report *rep) +{ + struct ui_progress prog; + struct perf_evsel *pos; + + ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); + + evlist__for_each(rep->session->evlist, pos) { + struct hists *hists = evsel__hists(pos); + + if (pos->idx == 0) + hists->symbol_filter_str = rep->symbol_filter_str; + + hists__collapse_resort(hists, &prog); + + /* 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(); +} + +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(rep->session->evlist, pos) + hists__output_resort(evsel__hists(pos), &prog); + + ui_progress__finish(); +} + +static int __cmd_report(struct report *rep) +{ + int ret; + struct perf_session *session = rep->session; + struct perf_evsel *pos; + struct perf_data_file *file = session->file; + + signal(SIGINT, sig_handler); + + if (rep->cpu_list) { + ret = perf_session__cpu_bitmap(session, rep->cpu_list, + rep->cpu_bitmap); + if (ret) + return ret; + } + + if (rep->show_threads) + perf_read_values_init(&rep->show_threads_values); + + ret = report__setup_sample_type(rep); + if (ret) + return ret; + + ret = perf_session__process_events(session); + if (ret) + return ret; + + report__warn_kptr_restrict(rep); + + evlist__for_each(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; + } + } + + report__collapse_hists(rep); + + 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(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", 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 report *rep = (struct report *)opt->value; + + /* + * --no-call-graph + */ + if (unset) { + rep->dont_use_callchains = true; + 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 __maybe_unused, + 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; + + rep->min_percent = strtof(str, NULL); + return 0; +} + +int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) +{ + struct perf_session *session; + struct stat st; + bool has_br_stack = false; + int branch_mode = -1; + bool branch_call_mode = false; + char callchain_default_opt[] = "fractal,0.5,callee"; + 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, + .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, + .ordered_events = true, + .ordering_requires_timestamps = true, + }, + .max_stack = PERF_MAX_STACK_DEPTH, + .pretty_printing_style = "normal", + }; + 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('D', "dump-raw-trace", &dump_trace, + "dump raw trace in ASCII"), + OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, + "file", "vmlinux pathname"), + OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, + "file", "kallsyms pathname"), + OPT_BOOLEAN('f', "force", &report.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, "showcpuutilization", &symbol_conf.show_cpu_utilization, + "Show sample percentage for different cpu modes"), + 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", &report, "output_type,min_percent[,print_limit],call_order[,branch]", + "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit, callchain order, key (function or address), add branches. " + "Default: fractal,0.5,callee,function", &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: " __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", &report.hide_unresolved, + "Only display entries resolved to a symbol"), + OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", + "Look for files with symbols relative to this directory"), + 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", &symbol_conf.annotate_src, + "Interleave source code with assembly code (default)"), + OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, + "Display raw encoding of assembly instructions (default)"), + OPT_STRING('M', "disassembler-style", &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(0, "group", &symbol_conf.event_group, + "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", &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_END() + }; + struct perf_data_file file = { + .mode = PERF_DATA_MODE_READ, + }; + int ret = hists__init(); + + if (ret < 0) + return ret; + + perf_config(report__config, &report); + + argc = parse_options(argc, argv, options, report_usage, 0); + + if (report.use_stdio) + use_browser = 0; + else if (report.use_tui) + use_browser = 1; + else if (report.use_gtk) + use_browser = 2; + + if (report.inverted_callchain) + callchain_param.order = ORDER_CALLER; + + if (!input_name || !strlen(input_name)) { + if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) + input_name = "-"; + else + input_name = "perf.data"; + } + + file.path = input_name; + file.force = report.force; + +repeat: + session = perf_session__new(&file, false, &report.tool); + if (session == NULL) + return -1; + + if (report.queue_size) { + ordered_events__set_alloc_size(&session->ordered_events, + report.queue_size); + } + + report.session = session; + + has_br_stack = perf_header__has_feat(&session->header, + HEADER_BRANCH_STACK); + + /* + * 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 (setup_sorting() < 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; + } + + /* Force tty output for header output. */ + if (report.header || report.header_only) + use_browser = 0; + + if (strcmp(input_name, "-") != 0) + setup_browser(true); + else + use_browser = 0; + + if (report.header || report.header_only) { + perf_session__fprintf_info(session, stdout, + report.show_full_info); + if (report.header_only) + return 0; + } else if (use_browser == 0) { + 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()) { + symbol_conf.priv_size = sizeof(struct annotation); + machines__set_symbol_filter(&session->machines, + symbol__annotate_init); + /* + * For searching by name on the "Browse map details". + * providing it only in verbose mode not to bloat too + * much struct symbol. + */ + if (verbose) { + /* + * 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; + } + } + + if (symbol__init(&session->header.env) < 0) + goto error; + + 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]; + } + + sort__setup_elide(stdout); + + ret = __cmd_report(&report); + if (ret == K_SWITCH_INPUT_DATA) { + perf_session__delete(session); + goto repeat; + } else + ret = 0; + +error: + perf_session__delete(session); + return ret; +} |