Root/tools/perf/builtin-report.c

1/*
2 * builtin-report.c
3 *
4 * Builtin report command: Analyze the perf.data input file,
5 * look up and read DSOs and symbol information and display
6 * a histogram of results, along various sorting keys.
7 */
8#include "builtin.h"
9
10#include "util/util.h"
11
12#include "util/annotate.h"
13#include "util/color.h"
14#include <linux/list.h>
15#include "util/cache.h"
16#include <linux/rbtree.h>
17#include "util/symbol.h"
18#include "util/callchain.h"
19#include "util/strlist.h"
20#include "util/values.h"
21
22#include "perf.h"
23#include "util/debug.h"
24#include "util/evlist.h"
25#include "util/evsel.h"
26#include "util/header.h"
27#include "util/session.h"
28#include "util/tool.h"
29
30#include "util/parse-options.h"
31#include "util/parse-events.h"
32
33#include "util/thread.h"
34#include "util/sort.h"
35#include "util/hist.h"
36
37#include <linux/bitmap.h>
38
39struct perf_report {
40    struct perf_tool tool;
41    struct perf_session *session;
42    char const *input_name;
43    bool force, use_tui, use_gtk, use_stdio;
44    bool hide_unresolved;
45    bool dont_use_callchains;
46    bool show_full_info;
47    bool show_threads;
48    bool inverted_callchain;
49    struct perf_read_values show_threads_values;
50    const char *pretty_printing_style;
51    symbol_filter_t annotate_init;
52    const char *cpu_list;
53    const char *symbol_filter_str;
54    DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
55};
56
57static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
58                    struct addr_location *al,
59                    struct perf_sample *sample,
60                    struct perf_evsel *evsel,
61                      struct machine *machine)
62{
63    struct perf_report *rep = container_of(tool, struct perf_report, tool);
64    struct symbol *parent = NULL;
65    int err = 0;
66    unsigned i;
67    struct hist_entry *he;
68    struct branch_info *bi, *bx;
69
70    if ((sort__has_parent || symbol_conf.use_callchain)
71        && sample->callchain) {
72        err = machine__resolve_callchain(machine, evsel, al->thread,
73                         sample->callchain, &parent);
74        if (err)
75            return err;
76    }
77
78    bi = machine__resolve_bstack(machine, al->thread,
79                     sample->branch_stack);
80    if (!bi)
81        return -ENOMEM;
82
83    for (i = 0; i < sample->branch_stack->nr; i++) {
84        if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym))
85            continue;
86        /*
87         * The report shows the percentage of total branches captured
88         * and not events sampled. Thus we use a pseudo period of 1.
89         */
90        he = __hists__add_branch_entry(&evsel->hists, al, parent,
91                &bi[i], 1);
92        if (he) {
93            struct annotation *notes;
94            err = -ENOMEM;
95            bx = he->branch_info;
96            if (bx->from.sym && use_browser > 0) {
97                notes = symbol__annotation(bx->from.sym);
98                if (!notes->src
99                    && symbol__alloc_hist(bx->from.sym) < 0)
100                    goto out;
101
102                err = symbol__inc_addr_samples(bx->from.sym,
103                                   bx->from.map,
104                                   evsel->idx,
105                                   bx->from.al_addr);
106                if (err)
107                    goto out;
108            }
109
110            if (bx->to.sym && use_browser > 0) {
111                notes = symbol__annotation(bx->to.sym);
112                if (!notes->src
113                    && symbol__alloc_hist(bx->to.sym) < 0)
114                    goto out;
115
116                err = symbol__inc_addr_samples(bx->to.sym,
117                                   bx->to.map,
118                                   evsel->idx,
119                                   bx->to.al_addr);
120                if (err)
121                    goto out;
122            }
123            evsel->hists.stats.total_period += 1;
124            hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
125            err = 0;
126        } else
127            return -ENOMEM;
128    }
129out:
130    return err;
131}
132
133static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
134                      struct addr_location *al,
135                      struct perf_sample *sample,
136                      struct machine *machine)
137{
138    struct symbol *parent = NULL;
139    int err = 0;
140    struct hist_entry *he;
141
142    if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
143        err = machine__resolve_callchain(machine, evsel, al->thread,
144                         sample->callchain, &parent);
145        if (err)
146            return err;
147    }
148
149    he = __hists__add_entry(&evsel->hists, al, parent, sample->period);
150    if (he == NULL)
151        return -ENOMEM;
152
153    if (symbol_conf.use_callchain) {
154        err = callchain_append(he->callchain,
155                       &callchain_cursor,
156                       sample->period);
157        if (err)
158            return err;
159    }
160    /*
161     * Only in the newt browser we are doing integrated annotation,
162     * so we don't allocated the extra space needed because the stdio
163     * code will not use it.
164     */
165    if (he->ms.sym != NULL && use_browser > 0) {
166        struct annotation *notes = symbol__annotation(he->ms.sym);
167
168        assert(evsel != NULL);
169
170        err = -ENOMEM;
171        if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
172            goto out;
173
174        err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
175    }
176
177    evsel->hists.stats.total_period += sample->period;
178    hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
179out:
180    return err;
181}
182
183
184static int process_sample_event(struct perf_tool *tool,
185                union perf_event *event,
186                struct perf_sample *sample,
187                struct perf_evsel *evsel,
188                struct machine *machine)
189{
190    struct perf_report *rep = container_of(tool, struct perf_report, tool);
191    struct addr_location al;
192
193    if (perf_event__preprocess_sample(event, machine, &al, sample,
194                      rep->annotate_init) < 0) {
195        fprintf(stderr, "problem processing %d event, skipping it.\n",
196            event->header.type);
197        return -1;
198    }
199
200    if (al.filtered || (rep->hide_unresolved && al.sym == NULL))
201        return 0;
202
203    if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
204        return 0;
205
206    if (sort__branch_mode == 1) {
207        if (perf_report__add_branch_hist_entry(tool, &al, sample,
208                               evsel, machine)) {
209            pr_debug("problem adding lbr entry, skipping event\n");
210            return -1;
211        }
212    } else {
213        if (al.map != NULL)
214            al.map->dso->hit = 1;
215
216        if (perf_evsel__add_hist_entry(evsel, &al, sample, machine)) {
217            pr_debug("problem incrementing symbol period, skipping event\n");
218            return -1;
219        }
220    }
221    return 0;
222}
223
224static int process_read_event(struct perf_tool *tool,
225                  union perf_event *event,
226                  struct perf_sample *sample __used,
227                  struct perf_evsel *evsel,
228                  struct machine *machine __used)
229{
230    struct perf_report *rep = container_of(tool, struct perf_report, tool);
231
232    if (rep->show_threads) {
233        const char *name = evsel ? event_name(evsel) : "unknown";
234        perf_read_values_add_value(&rep->show_threads_values,
235                       event->read.pid, event->read.tid,
236                       event->read.id,
237                       name,
238                       event->read.value);
239    }
240
241    dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
242            evsel ? event_name(evsel) : "FAIL",
243            event->read.value);
244
245    return 0;
246}
247
248static int perf_report__setup_sample_type(struct perf_report *rep)
249{
250    struct perf_session *self = rep->session;
251
252    if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
253        if (sort__has_parent) {
254            ui__error("Selected --sort parent, but no "
255                    "callchain data. Did you call "
256                    "'perf record' without -g?\n");
257            return -EINVAL;
258        }
259        if (symbol_conf.use_callchain) {
260            ui__error("Selected -g but no callchain data. Did "
261                    "you call 'perf record' without -g?\n");
262            return -1;
263        }
264    } else if (!rep->dont_use_callchains &&
265           callchain_param.mode != CHAIN_NONE &&
266           !symbol_conf.use_callchain) {
267            symbol_conf.use_callchain = true;
268            if (callchain_register_param(&callchain_param) < 0) {
269                ui__error("Can't register callchain params.\n");
270                return -EINVAL;
271            }
272    }
273
274    if (sort__branch_mode == 1) {
275        if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
276            ui__error("Selected -b but no branch data. "
277                  "Did you call perf record without -b?\n");
278            return -1;
279        }
280    }
281
282    return 0;
283}
284
285extern volatile int session_done;
286
287static void sig_handler(int sig __used)
288{
289    session_done = 1;
290}
291
292static size_t hists__fprintf_nr_sample_events(struct hists *self,
293                          const char *evname, FILE *fp)
294{
295    size_t ret;
296    char unit;
297    unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
298    u64 nr_events = self->stats.total_period;
299
300    nr_samples = convert_unit(nr_samples, &unit);
301    ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
302    if (evname != NULL)
303        ret += fprintf(fp, " of event '%s'", evname);
304
305    ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
306    return ret + fprintf(fp, "\n#\n");
307}
308
309static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
310                     struct perf_report *rep,
311                     const char *help)
312{
313    struct perf_evsel *pos;
314
315    list_for_each_entry(pos, &evlist->entries, node) {
316        struct hists *hists = &pos->hists;
317        const char *evname = event_name(pos);
318
319        hists__fprintf_nr_sample_events(hists, evname, stdout);
320        hists__fprintf(hists, NULL, false, true, 0, 0, stdout);
321        fprintf(stdout, "\n\n");
322    }
323
324    if (sort_order == default_sort_order &&
325        parent_pattern == default_parent_pattern) {
326        fprintf(stdout, "#\n# (%s)\n#\n", help);
327
328        if (rep->show_threads) {
329            bool style = !strcmp(rep->pretty_printing_style, "raw");
330            perf_read_values_display(stdout, &rep->show_threads_values,
331                         style);
332            perf_read_values_destroy(&rep->show_threads_values);
333        }
334    }
335
336    return 0;
337}
338
339static int __cmd_report(struct perf_report *rep)
340{
341    int ret = -EINVAL;
342    u64 nr_samples;
343    struct perf_session *session = rep->session;
344    struct perf_evsel *pos;
345    struct map *kernel_map;
346    struct kmap *kernel_kmap;
347    const char *help = "For a higher level overview, try: perf report --sort comm,dso";
348
349    signal(SIGINT, sig_handler);
350
351    if (rep->cpu_list) {
352        ret = perf_session__cpu_bitmap(session, rep->cpu_list,
353                           rep->cpu_bitmap);
354        if (ret)
355            goto out_delete;
356    }
357
358    if (use_browser <= 0)
359        perf_session__fprintf_info(session, stdout, rep->show_full_info);
360
361    if (rep->show_threads)
362        perf_read_values_init(&rep->show_threads_values);
363
364    ret = perf_report__setup_sample_type(rep);
365    if (ret)
366        goto out_delete;
367
368    ret = perf_session__process_events(session, &rep->tool);
369    if (ret)
370        goto out_delete;
371
372    kernel_map = session->host_machine.vmlinux_maps[MAP__FUNCTION];
373    kernel_kmap = map__kmap(kernel_map);
374    if (kernel_map == NULL ||
375        (kernel_map->dso->hit &&
376         (kernel_kmap->ref_reloc_sym == NULL ||
377          kernel_kmap->ref_reloc_sym->addr == 0))) {
378        const char *desc =
379            "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
380            "can't be resolved.";
381
382        if (kernel_map) {
383            const struct dso *kdso = kernel_map->dso;
384            if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
385                desc = "If some relocation was applied (e.g. "
386                       "kexec) symbols may be misresolved.";
387            }
388        }
389
390        ui__warning(
391"Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
392"Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
393"Samples in kernel modules can't be resolved as well.\n\n",
394        desc);
395    }
396
397    if (dump_trace) {
398        perf_session__fprintf_nr_events(session, stdout);
399        goto out_delete;
400    }
401
402    if (verbose > 3)
403        perf_session__fprintf(session, stdout);
404
405    if (verbose > 2)
406        perf_session__fprintf_dsos(session, stdout);
407
408    nr_samples = 0;
409    list_for_each_entry(pos, &session->evlist->entries, node) {
410        struct hists *hists = &pos->hists;
411
412        if (pos->idx == 0)
413            hists->symbol_filter_str = rep->symbol_filter_str;
414
415        hists__collapse_resort(hists);
416        hists__output_resort(hists);
417        nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
418    }
419
420    if (nr_samples == 0) {
421        ui__error("The %s file has no samples!\n", session->filename);
422        goto out_delete;
423    }
424
425    if (use_browser > 0) {
426        if (use_browser == 1) {
427            perf_evlist__tui_browse_hists(session->evlist, help,
428                              NULL, NULL, 0);
429        } else if (use_browser == 2) {
430            perf_evlist__gtk_browse_hists(session->evlist, help,
431                              NULL, NULL, 0);
432        }
433    } else
434        perf_evlist__tty_browse_hists(session->evlist, rep, help);
435
436out_delete:
437    /*
438     * Speed up the exit process, for large files this can
439     * take quite a while.
440     *
441     * XXX Enable this when using valgrind or if we ever
442     * librarize this command.
443     *
444     * Also experiment with obstacks to see how much speed
445     * up we'll get here.
446     *
447      * perf_session__delete(session);
448      */
449    return ret;
450}
451
452static int
453parse_callchain_opt(const struct option *opt, const char *arg, int unset)
454{
455    struct perf_report *rep = (struct perf_report *)opt->value;
456    char *tok, *tok2;
457    char *endptr;
458
459    /*
460     * --no-call-graph
461     */
462    if (unset) {
463        rep->dont_use_callchains = true;
464        return 0;
465    }
466
467    symbol_conf.use_callchain = true;
468
469    if (!arg)
470        return 0;
471
472    tok = strtok((char *)arg, ",");
473    if (!tok)
474        return -1;
475
476    /* get the output mode */
477    if (!strncmp(tok, "graph", strlen(arg)))
478        callchain_param.mode = CHAIN_GRAPH_ABS;
479
480    else if (!strncmp(tok, "flat", strlen(arg)))
481        callchain_param.mode = CHAIN_FLAT;
482
483    else if (!strncmp(tok, "fractal", strlen(arg)))
484        callchain_param.mode = CHAIN_GRAPH_REL;
485
486    else if (!strncmp(tok, "none", strlen(arg))) {
487        callchain_param.mode = CHAIN_NONE;
488        symbol_conf.use_callchain = false;
489
490        return 0;
491    }
492
493    else
494        return -1;
495
496    /* get the min percentage */
497    tok = strtok(NULL, ",");
498    if (!tok)
499        goto setup;
500
501    callchain_param.min_percent = strtod(tok, &endptr);
502    if (tok == endptr)
503        return -1;
504
505    /* get the print limit */
506    tok2 = strtok(NULL, ",");
507    if (!tok2)
508        goto setup;
509
510    if (tok2[0] != 'c') {
511        callchain_param.print_limit = strtoul(tok2, &endptr, 0);
512        tok2 = strtok(NULL, ",");
513        if (!tok2)
514            goto setup;
515    }
516
517    /* get the call chain order */
518    if (!strcmp(tok2, "caller"))
519        callchain_param.order = ORDER_CALLER;
520    else if (!strcmp(tok2, "callee"))
521        callchain_param.order = ORDER_CALLEE;
522    else
523        return -1;
524setup:
525    if (callchain_register_param(&callchain_param) < 0) {
526        fprintf(stderr, "Can't register callchain params\n");
527        return -1;
528    }
529    return 0;
530}
531
532static int
533parse_branch_mode(const struct option *opt __used, const char *str __used, int unset)
534{
535    sort__branch_mode = !unset;
536    return 0;
537}
538
539int cmd_report(int argc, const char **argv, const char *prefix __used)
540{
541    struct perf_session *session;
542    struct stat st;
543    bool has_br_stack = false;
544    int ret = -1;
545    char callchain_default_opt[] = "fractal,0.5,callee";
546    const char * const report_usage[] = {
547        "perf report [<options>]",
548        NULL
549    };
550    struct perf_report report = {
551        .tool = {
552            .sample = process_sample_event,
553            .mmap = perf_event__process_mmap,
554            .comm = perf_event__process_comm,
555            .exit = perf_event__process_task,
556            .fork = perf_event__process_task,
557            .lost = perf_event__process_lost,
558            .read = process_read_event,
559            .attr = perf_event__process_attr,
560            .event_type = perf_event__process_event_type,
561            .tracing_data = perf_event__process_tracing_data,
562            .build_id = perf_event__process_build_id,
563            .ordered_samples = true,
564            .ordering_requires_timestamps = true,
565        },
566        .pretty_printing_style = "normal",
567    };
568    const struct option options[] = {
569    OPT_STRING('i', "input", &report.input_name, "file",
570            "input file name"),
571    OPT_INCR('v', "verbose", &verbose,
572            "be more verbose (show symbol address, etc)"),
573    OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
574            "dump raw trace in ASCII"),
575    OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
576           "file", "vmlinux pathname"),
577    OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
578           "file", "kallsyms pathname"),
579    OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"),
580    OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
581            "load module symbols - WARNING: use only with -k and LIVE kernel"),
582    OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
583            "Show a column with the number of samples"),
584    OPT_BOOLEAN('T', "threads", &report.show_threads,
585            "Show per-thread event counters"),
586    OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
587           "pretty printing style key: normal raw"),
588    OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
589    OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
590    OPT_BOOLEAN(0, "stdio", &report.use_stdio,
591            "Use the stdio interface"),
592    OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
593           "sort by key(s): pid, comm, dso, symbol, parent, dso_to,"
594           " dso_from, symbol_to, symbol_from, mispredict"),
595    OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
596            "Show sample percentage for different cpu modes"),
597    OPT_STRING('p', "parent", &parent_pattern, "regex",
598           "regex filter to identify parent, see: '--sort parent'"),
599    OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
600            "Only display entries with parent-match"),
601    OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
602             "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
603             "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
604    OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
605            "alias for inverted call graph"),
606    OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
607           "only consider symbols in these dsos"),
608    OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
609           "only consider symbols in these comms"),
610    OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
611           "only consider these symbols"),
612    OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
613           "only show symbols that (partially) match with this filter"),
614    OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
615           "width[,width...]",
616           "don't try to adjust column width, use these fixed values"),
617    OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
618           "separator for columns, no spaces will be added between "
619           "columns '.' is reserved."),
620    OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
621            "Only display entries resolved to a symbol"),
622    OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
623            "Look for files with symbols relative to this directory"),
624    OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
625           "list of cpus to profile"),
626    OPT_BOOLEAN('I', "show-info", &report.show_full_info,
627            "Display extended information about perf.data file"),
628    OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
629            "Interleave source code with assembly code (default)"),
630    OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
631            "Display raw encoding of assembly instructions (default)"),
632    OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
633           "Specify disassembler style (e.g. -M intel for intel syntax)"),
634    OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
635            "Show a column with the sum of periods"),
636    OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
637            "use branch records for histogram filling", parse_branch_mode),
638    OPT_END()
639    };
640
641    argc = parse_options(argc, argv, options, report_usage, 0);
642
643    if (report.use_stdio)
644        use_browser = 0;
645    else if (report.use_tui)
646        use_browser = 1;
647    else if (report.use_gtk)
648        use_browser = 2;
649
650    if (report.inverted_callchain)
651        callchain_param.order = ORDER_CALLER;
652
653    if (!report.input_name || !strlen(report.input_name)) {
654        if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
655            report.input_name = "-";
656        else
657            report.input_name = "perf.data";
658    }
659    session = perf_session__new(report.input_name, O_RDONLY,
660                    report.force, false, &report.tool);
661    if (session == NULL)
662        return -ENOMEM;
663
664    report.session = session;
665
666    has_br_stack = perf_header__has_feat(&session->header,
667                         HEADER_BRANCH_STACK);
668
669    if (sort__branch_mode == -1 && has_br_stack)
670        sort__branch_mode = 1;
671
672    /* sort__branch_mode could be 0 if --no-branch-stack */
673    if (sort__branch_mode == 1) {
674        /*
675         * if no sort_order is provided, then specify
676         * branch-mode specific order
677         */
678        if (sort_order == default_sort_order)
679            sort_order = "comm,dso_from,symbol_from,"
680                     "dso_to,symbol_to";
681
682    }
683
684    if (strcmp(report.input_name, "-") != 0)
685        setup_browser(true);
686    else
687        use_browser = 0;
688
689    /*
690     * Only in the newt browser we are doing integrated annotation,
691     * so don't allocate extra space that won't be used in the stdio
692     * implementation.
693     */
694    if (use_browser > 0) {
695        symbol_conf.priv_size = sizeof(struct annotation);
696        report.annotate_init = symbol__annotate_init;
697        /*
698          * For searching by name on the "Browse map details".
699          * providing it only in verbose mode not to bloat too
700          * much struct symbol.
701          */
702        if (verbose) {
703            /*
704             * XXX: Need to provide a less kludgy way to ask for
705             * more space per symbol, the u32 is for the index on
706             * the ui browser.
707             * See symbol__browser_index.
708             */
709            symbol_conf.priv_size += sizeof(u32);
710            symbol_conf.sort_by_name = true;
711        }
712    }
713
714    if (symbol__init() < 0)
715        goto error;
716
717    setup_sorting(report_usage, options);
718
719    if (parent_pattern != default_parent_pattern) {
720        if (sort_dimension__add("parent") < 0)
721            goto error;
722
723        /*
724         * Only show the parent fields if we explicitly
725         * sort that way. If we only use parent machinery
726         * for filtering, we don't want it.
727         */
728        if (!strstr(sort_order, "parent"))
729            sort_parent.elide = 1;
730    } else
731        symbol_conf.exclude_other = false;
732
733    if (argc) {
734        /*
735         * Special case: if there's an argument left then assume that
736         * it's a symbol filter:
737         */
738        if (argc > 1)
739            usage_with_options(report_usage, options);
740
741        report.symbol_filter_str = argv[0];
742    }
743
744    sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
745
746    if (sort__branch_mode == 1) {
747        sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
748        sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
749        sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
750        sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout);
751    } else {
752        sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
753        sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
754    }
755
756    ret = __cmd_report(&report);
757error:
758    perf_session__delete(session);
759    return ret;
760}
761

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