1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * builtin-report.c
   4 *
   5 * Builtin report command: Analyze the perf.data input file,
   6 * look up and read DSOs and symbol information and display
   7 * a histogram of results, along various sorting keys.
   8 */
   9#include "builtin.h"
  10
  11#include "util/config.h"
  12
  13#include "util/annotate.h"
  14#include "util/color.h"
  15#include "util/dso.h"
  16#include <linux/list.h>
  17#include <linux/rbtree.h>
  18#include <linux/err.h>
  19#include <linux/zalloc.h>
  20#include "util/map.h"
  21#include "util/symbol.h"
  22#include "util/map_symbol.h"
  23#include "util/mem-events.h"
  24#include "util/branch.h"
  25#include "util/callchain.h"
  26#include "util/values.h"
  27
  28#include "perf.h"
  29#include "util/debug.h"
  30#include "util/evlist.h"
  31#include "util/evsel.h"
  32#include "util/evswitch.h"
  33#include "util/header.h"
  34#include "util/session.h"
  35#include "util/srcline.h"
  36#include "util/tool.h"
  37
  38#include <subcmd/parse-options.h>
  39#include <subcmd/exec-cmd.h>
  40#include "util/parse-events.h"
  41
  42#include "util/thread.h"
  43#include "util/sort.h"
  44#include "util/hist.h"
  45#include "util/data.h"
  46#include "arch/common.h"
  47#include "util/time-utils.h"
  48#include "util/auxtrace.h"
  49#include "util/units.h"
  50#include "util/util.h" // perf_tip()
  51#include "ui/ui.h"
  52#include "ui/progress.h"
  53#include "util/block-info.h"
  54
  55#include <dlfcn.h>
  56#include <errno.h>
  57#include <inttypes.h>
  58#include <regex.h>
  59#include <linux/ctype.h>
  60#include <signal.h>
  61#include <linux/bitmap.h>
  62#include <linux/string.h>
  63#include <linux/stringify.h>
  64#include <linux/time64.h>
  65#include <sys/types.h>
  66#include <sys/stat.h>
  67#include <unistd.h>
  68#include <linux/mman.h>
  69
  70#ifdef HAVE_LIBTRACEEVENT
  71#include <traceevent/event-parse.h>
  72#endif
  73
  74struct report {
  75	struct perf_tool	tool;
  76	struct perf_session	*session;
  77	struct evswitch		evswitch;
  78#ifdef HAVE_SLANG_SUPPORT
  79	bool			use_tui;
  80#endif
  81#ifdef HAVE_GTK2_SUPPORT
  82	bool			use_gtk;
  83#endif
  84	bool			use_stdio;
  85	bool			show_full_info;
  86	bool			show_threads;
  87	bool			inverted_callchain;
  88	bool			mem_mode;
  89	bool			stats_mode;
  90	bool			tasks_mode;
  91	bool			mmaps_mode;
  92	bool			header;
  93	bool			header_only;
  94	bool			nonany_branch_mode;
  95	bool			group_set;
  96	bool			stitch_lbr;
  97	bool			disable_order;
  98	bool			skip_empty;
  99	int			max_stack;
 100	struct perf_read_values	show_threads_values;
 101	struct annotation_options annotation_opts;
 102	const char		*pretty_printing_style;
 103	const char		*cpu_list;
 104	const char		*symbol_filter_str;
 105	const char		*time_str;
 106	struct perf_time_interval *ptime_range;
 107	int			range_size;
 108	int			range_num;
 109	float			min_percent;
 110	u64			nr_entries;
 111	u64			queue_size;
 112	u64			total_cycles;
 113	int			socket_filter;
 114	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 115	struct branch_type_stat	brtype_stat;
 116	bool			symbol_ipc;
 117	bool			total_cycles_mode;
 118	struct block_report	*block_reports;
 119	int			nr_block_reports;
 120};
 121
 122static int report__config(const char *var, const char *value, void *cb)
 123{
 124	struct report *rep = cb;
 125
 126	if (!strcmp(var, "report.group")) {
 127		symbol_conf.event_group = perf_config_bool(var, value);
 128		return 0;
 129	}
 130	if (!strcmp(var, "report.percent-limit")) {
 131		double pcnt = strtof(value, NULL);
 132
 133		rep->min_percent = pcnt;
 134		callchain_param.min_percent = pcnt;
 135		return 0;
 136	}
 137	if (!strcmp(var, "report.children")) {
 138		symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 139		return 0;
 140	}
 141	if (!strcmp(var, "report.queue-size"))
 142		return perf_config_u64(&rep->queue_size, var, value);
 143
 144	if (!strcmp(var, "report.sort_order")) {
 145		default_sort_order = strdup(value);
 146		return 0;
 147	}
 148
 149	if (!strcmp(var, "report.skip-empty")) {
 150		rep->skip_empty = perf_config_bool(var, value);
 151		return 0;
 152	}
 153
 154	return 0;
 155}
 156
 157static int hist_iter__report_callback(struct hist_entry_iter *iter,
 158				      struct addr_location *al, bool single,
 159				      void *arg)
 160{
 161	int err = 0;
 162	struct report *rep = arg;
 163	struct hist_entry *he = iter->he;
 164	struct evsel *evsel = iter->evsel;
 165	struct perf_sample *sample = iter->sample;
 166	struct mem_info *mi;
 167	struct branch_info *bi;
 168
 169	if (!ui__has_annotation() && !rep->symbol_ipc)
 170		return 0;
 171
 172	if (sort__mode == SORT_MODE__BRANCH) {
 173		bi = he->branch_info;
 174		err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 175		if (err)
 176			goto out;
 177
 178		err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 179
 180	} else if (rep->mem_mode) {
 181		mi = he->mem_info;
 182		err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
 183		if (err)
 184			goto out;
 185
 186		err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 187
 188	} else if (symbol_conf.cumulate_callchain) {
 189		if (single)
 190			err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 191	} else {
 192		err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 193	}
 194
 195out:
 196	return err;
 197}
 198
 199static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 200				      struct addr_location *al __maybe_unused,
 201				      bool single __maybe_unused,
 202				      void *arg)
 203{
 204	struct hist_entry *he = iter->he;
 205	struct report *rep = arg;
 206	struct branch_info *bi = he->branch_info;
 207	struct perf_sample *sample = iter->sample;
 208	struct evsel *evsel = iter->evsel;
 209	int err;
 210
 211	branch_type_count(&rep->brtype_stat, &bi->flags,
 212			  bi->from.addr, bi->to.addr);
 213
 214	if (!ui__has_annotation() && !rep->symbol_ipc)
 215		return 0;
 216
 217	err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 218	if (err)
 219		goto out;
 220
 221	err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 222
 223out:
 224	return err;
 225}
 226
 227static void setup_forced_leader(struct report *report,
 228				struct evlist *evlist)
 229{
 230	if (report->group_set)
 231		evlist__force_leader(evlist);
 232}
 233
 234static int process_feature_event(struct perf_session *session,
 235				 union perf_event *event)
 236{
 237	struct report *rep = container_of(session->tool, struct report, tool);
 238
 239	if (event->feat.feat_id < HEADER_LAST_FEATURE)
 240		return perf_event__process_feature(session, event);
 241
 242	if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 243		pr_err("failed: wrong feature ID: %" PRI_lu64 "\n",
 244		       event->feat.feat_id);
 245		return -1;
 246	} else if (rep->header_only) {
 247		session_done = 1;
 248	}
 249
 250	/*
 251	 * (feat_id = HEADER_LAST_FEATURE) is the end marker which
 252	 * means all features are received, now we can force the
 253	 * group if needed.
 254	 */
 255	setup_forced_leader(rep, session->evlist);
 256	return 0;
 257}
 258
 259static int process_sample_event(struct perf_tool *tool,
 260				union perf_event *event,
 261				struct perf_sample *sample,
 262				struct evsel *evsel,
 263				struct machine *machine)
 264{
 265	struct report *rep = container_of(tool, struct report, tool);
 266	struct addr_location al;
 267	struct hist_entry_iter iter = {
 268		.evsel 			= evsel,
 269		.sample 		= sample,
 270		.hide_unresolved 	= symbol_conf.hide_unresolved,
 271		.add_entry_cb 		= hist_iter__report_callback,
 272	};
 273	int ret = 0;
 274
 275	if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 276					  sample->time)) {
 277		return 0;
 278	}
 279
 280	if (evswitch__discard(&rep->evswitch, evsel))
 281		return 0;
 282
 283	if (machine__resolve(machine, &al, sample) < 0) {
 284		pr_debug("problem processing %d event, skipping it.\n",
 285			 event->header.type);
 286		return -1;
 287	}
 288
 289	if (rep->stitch_lbr)
 290		al.thread->lbr_stitch_enable = true;
 291
 292	if (symbol_conf.hide_unresolved && al.sym == NULL)
 293		goto out_put;
 294
 295	if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 296		goto out_put;
 297
 298	if (sort__mode == SORT_MODE__BRANCH) {
 299		/*
 300		 * A non-synthesized event might not have a branch stack if
 301		 * branch stacks have been synthesized (using itrace options).
 302		 */
 303		if (!sample->branch_stack)
 304			goto out_put;
 305
 306		iter.add_entry_cb = hist_iter__branch_callback;
 307		iter.ops = &hist_iter_branch;
 308	} else if (rep->mem_mode) {
 309		iter.ops = &hist_iter_mem;
 310	} else if (symbol_conf.cumulate_callchain) {
 311		iter.ops = &hist_iter_cumulative;
 312	} else {
 313		iter.ops = &hist_iter_normal;
 314	}
 315
 316	if (al.map != NULL)
 317		al.map->dso->hit = 1;
 318
 319	if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) {
 320		hist__account_cycles(sample->branch_stack, &al, sample,
 321				     rep->nonany_branch_mode,
 322				     &rep->total_cycles);
 323	}
 324
 325	ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 326	if (ret < 0)
 327		pr_debug("problem adding hist entry, skipping event\n");
 328out_put:
 329	addr_location__put(&al);
 330	return ret;
 331}
 332
 333static int process_read_event(struct perf_tool *tool,
 334			      union perf_event *event,
 335			      struct perf_sample *sample __maybe_unused,
 336			      struct evsel *evsel,
 337			      struct machine *machine __maybe_unused)
 338{
 339	struct report *rep = container_of(tool, struct report, tool);
 340
 341	if (rep->show_threads) {
 342		const char *name = evsel__name(evsel);
 343		int err = perf_read_values_add_value(&rep->show_threads_values,
 344					   event->read.pid, event->read.tid,
 345					   evsel->core.idx,
 346					   name,
 347					   event->read.value);
 348
 349		if (err)
 350			return err;
 351	}
 352
 353	return 0;
 354}
 355
 356/* For pipe mode, sample_type is not currently set */
 357static int report__setup_sample_type(struct report *rep)
 358{
 359	struct perf_session *session = rep->session;
 360	u64 sample_type = evlist__combined_sample_type(session->evlist);
 361	bool is_pipe = perf_data__is_pipe(session->data);
 362	struct evsel *evsel;
 363
 364	if (session->itrace_synth_opts->callchain ||
 365	    session->itrace_synth_opts->add_callchain ||
 366	    (!is_pipe &&
 367	     perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 368	     !session->itrace_synth_opts->set))
 369		sample_type |= PERF_SAMPLE_CALLCHAIN;
 370
 371	if (session->itrace_synth_opts->last_branch ||
 372	    session->itrace_synth_opts->add_last_branch)
 373		sample_type |= PERF_SAMPLE_BRANCH_STACK;
 374
 375	if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 376		if (perf_hpp_list.parent) {
 377			ui__error("Selected --sort parent, but no "
 378				    "callchain data. Did you call "
 379				    "'perf record' without -g?\n");
 380			return -EINVAL;
 381		}
 382		if (symbol_conf.use_callchain &&
 383			!symbol_conf.show_branchflag_count) {
 384			ui__error("Selected -g or --branch-history.\n"
 385				  "But no callchain or branch data.\n"
 386				  "Did you call 'perf record' without -g or -b?\n");
 387			return -1;
 388		}
 389	} else if (!callchain_param.enabled &&
 390		   callchain_param.mode != CHAIN_NONE &&
 391		   !symbol_conf.use_callchain) {
 392			symbol_conf.use_callchain = true;
 393			if (callchain_register_param(&callchain_param) < 0) {
 394				ui__error("Can't register callchain params.\n");
 395				return -EINVAL;
 396			}
 397	}
 398
 399	if (symbol_conf.cumulate_callchain) {
 400		/* Silently ignore if callchain is missing */
 401		if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 402			symbol_conf.cumulate_callchain = false;
 403			perf_hpp__cancel_cumulate();
 404		}
 405	}
 406
 407	if (sort__mode == SORT_MODE__BRANCH) {
 408		if (!is_pipe &&
 409		    !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 410			ui__error("Selected -b but no branch data. "
 411				  "Did you call perf record without -b?\n");
 412			return -1;
 413		}
 414	}
 415
 416	if (sort__mode == SORT_MODE__MEMORY) {
 417		/*
 418		 * FIXUP: prior to kernel 5.18, Arm SPE missed to set
 419		 * PERF_SAMPLE_DATA_SRC bit in sample type.  For backward
 420		 * compatibility, set the bit if it's an old perf data file.
 421		 */
 422		evlist__for_each_entry(session->evlist, evsel) {
 423			if (strstr(evsel->name, "arm_spe") &&
 424				!(sample_type & PERF_SAMPLE_DATA_SRC)) {
 425				evsel->core.attr.sample_type |= PERF_SAMPLE_DATA_SRC;
 426				sample_type |= PERF_SAMPLE_DATA_SRC;
 427			}
 428		}
 429
 430		if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) {
 431			ui__error("Selected --mem-mode but no mem data. "
 432				  "Did you call perf record without -d?\n");
 433			return -1;
 434		}
 435	}
 436
 437	callchain_param_setup(sample_type, perf_env__arch(&rep->session->header.env));
 438
 439	if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
 440		ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
 441			    "Please apply --call-graph lbr when recording.\n");
 442		rep->stitch_lbr = false;
 443	}
 444
 445	/* ??? handle more cases than just ANY? */
 446	if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY))
 447		rep->nonany_branch_mode = true;
 448
 449#if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT)
 450	if (dwarf_callchain_users) {
 451		ui__warning("Please install libunwind or libdw "
 452			    "development packages during the perf build.\n");
 453	}
 454#endif
 455
 456	return 0;
 457}
 458
 459static void sig_handler(int sig __maybe_unused)
 460{
 461	session_done = 1;
 462}
 463
 464static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 465					      const char *evname, FILE *fp)
 466{
 467	size_t ret;
 468	char unit;
 469	unsigned long nr_samples = hists->stats.nr_samples;
 470	u64 nr_events = hists->stats.total_period;
 471	struct evsel *evsel = hists_to_evsel(hists);
 472	char buf[512];
 473	size_t size = sizeof(buf);
 474	int socked_id = hists->socket_filter;
 475
 476	if (quiet)
 477		return 0;
 478
 479	if (symbol_conf.filter_relative) {
 480		nr_samples = hists->stats.nr_non_filtered_samples;
 481		nr_events = hists->stats.total_non_filtered_period;
 482	}
 483
 484	if (evsel__is_group_event(evsel)) {
 485		struct evsel *pos;
 486
 487		evsel__group_desc(evsel, buf, size);
 488		evname = buf;
 489
 490		for_each_group_member(pos, evsel) {
 491			const struct hists *pos_hists = evsel__hists(pos);
 492
 493			if (symbol_conf.filter_relative) {
 494				nr_samples += pos_hists->stats.nr_non_filtered_samples;
 495				nr_events += pos_hists->stats.total_non_filtered_period;
 496			} else {
 497				nr_samples += pos_hists->stats.nr_samples;
 498				nr_events += pos_hists->stats.total_period;
 499			}
 500		}
 501	}
 502
 503	nr_samples = convert_unit(nr_samples, &unit);
 504	ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 505	if (evname != NULL) {
 506		ret += fprintf(fp, " of event%s '%s'",
 507			       evsel->core.nr_members > 1 ? "s" : "", evname);
 508	}
 509
 510	if (rep->time_str)
 511		ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 512
 513	if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
 514		ret += fprintf(fp, ", show reference callgraph");
 515	}
 516
 517	if (rep->mem_mode) {
 518		ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 519		ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 520	} else
 521		ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 522
 523	if (socked_id > -1)
 524		ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 525
 526	return ret + fprintf(fp, "\n#\n");
 527}
 528
 529static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *rep)
 530{
 531	struct evsel *pos;
 532	int i = 0, ret;
 533
 534	evlist__for_each_entry(evlist, pos) {
 535		ret = report__browse_block_hists(&rep->block_reports[i++].hist,
 536						 rep->min_percent, pos,
 537						 &rep->session->header.env,
 538						 &rep->annotation_opts);
 539		if (ret != 0)
 540			return ret;
 541	}
 542
 543	return 0;
 544}
 545
 546static int evlist__tty_browse_hists(struct evlist *evlist, struct report *rep, const char *help)
 547{
 548	struct evsel *pos;
 549	int i = 0;
 550
 551	if (!quiet) {
 552		fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 553			evlist->stats.total_lost_samples);
 554	}
 555
 556	evlist__for_each_entry(evlist, pos) {
 557		struct hists *hists = evsel__hists(pos);
 558		const char *evname = evsel__name(pos);
 559
 560		if (symbol_conf.event_group && !evsel__is_group_leader(pos))
 561			continue;
 562
 563		if (rep->skip_empty && !hists->stats.nr_samples)
 564			continue;
 565
 566		hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 567
 568		if (rep->total_cycles_mode) {
 569			report__browse_block_hists(&rep->block_reports[i++].hist,
 570						   rep->min_percent, pos,
 571						   NULL, NULL);
 572			continue;
 573		}
 574
 575		hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 576			       !(symbol_conf.use_callchain ||
 577			         symbol_conf.show_branchflag_count));
 578		fprintf(stdout, "\n\n");
 579	}
 580
 581	if (!quiet)
 582		fprintf(stdout, "#\n# (%s)\n#\n", help);
 583
 584	if (rep->show_threads) {
 585		bool style = !strcmp(rep->pretty_printing_style, "raw");
 586		perf_read_values_display(stdout, &rep->show_threads_values,
 587					 style);
 588		perf_read_values_destroy(&rep->show_threads_values);
 589	}
 590
 591	if (sort__mode == SORT_MODE__BRANCH)
 592		branch_type_stat_display(stdout, &rep->brtype_stat);
 593
 594	return 0;
 595}
 596
 597static void report__warn_kptr_restrict(const struct report *rep)
 598{
 599	struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 600	struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 601
 602	if (evlist__exclude_kernel(rep->session->evlist))
 603		return;
 604
 605	if (kernel_map == NULL ||
 606	    (kernel_map->dso->hit &&
 607	     (kernel_kmap->ref_reloc_sym == NULL ||
 608	      kernel_kmap->ref_reloc_sym->addr == 0))) {
 609		const char *desc =
 610		    "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 611		    "can't be resolved.";
 612
 613		if (kernel_map && map__has_symbols(kernel_map)) {
 614			desc = "If some relocation was applied (e.g. "
 615			       "kexec) symbols may be misresolved.";
 616		}
 617
 618		ui__warning(
 619"Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 620"Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 621"Samples in kernel modules can't be resolved as well.\n\n",
 622		desc);
 623	}
 624}
 625
 626static int report__gtk_browse_hists(struct report *rep, const char *help)
 627{
 628	int (*hist_browser)(struct evlist *evlist, const char *help,
 629			    struct hist_browser_timer *timer, float min_pcnt);
 630
 631	hist_browser = dlsym(perf_gtk_handle, "evlist__gtk_browse_hists");
 632
 633	if (hist_browser == NULL) {
 634		ui__error("GTK browser not found!\n");
 635		return -1;
 636	}
 637
 638	return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 639}
 640
 641static int report__browse_hists(struct report *rep)
 642{
 643	int ret;
 644	struct perf_session *session = rep->session;
 645	struct evlist *evlist = session->evlist;
 646	char *help = NULL, *path = NULL;
 647
 648	path = system_path(TIPDIR);
 649	if (perf_tip(&help, path) || help == NULL) {
 650		/* fallback for people who don't install perf ;-) */
 651		free(path);
 652		path = system_path(DOCDIR);
 653		if (perf_tip(&help, path) || help == NULL)
 654			help = strdup("Cannot load tips.txt file, please install perf!");
 655	}
 656	free(path);
 657
 658	switch (use_browser) {
 659	case 1:
 660		if (rep->total_cycles_mode) {
 661			ret = evlist__tui_block_hists_browse(evlist, rep);
 662			break;
 663		}
 664
 665		ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent,
 666					       &session->header.env, true, &rep->annotation_opts);
 667		/*
 668		 * Usually "ret" is the last pressed key, and we only
 669		 * care if the key notifies us to switch data file.
 670		 */
 671		if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD)
 672			ret = 0;
 673		break;
 674	case 2:
 675		ret = report__gtk_browse_hists(rep, help);
 676		break;
 677	default:
 678		ret = evlist__tty_browse_hists(evlist, rep, help);
 679		break;
 680	}
 681	free(help);
 682	return ret;
 683}
 684
 685static int report__collapse_hists(struct report *rep)
 686{
 687	struct ui_progress prog;
 688	struct evsel *pos;
 689	int ret = 0;
 690
 691	ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 692
 693	evlist__for_each_entry(rep->session->evlist, pos) {
 694		struct hists *hists = evsel__hists(pos);
 695
 696		if (pos->core.idx == 0)
 697			hists->symbol_filter_str = rep->symbol_filter_str;
 698
 699		hists->socket_filter = rep->socket_filter;
 700
 701		ret = hists__collapse_resort(hists, &prog);
 702		if (ret < 0)
 703			break;
 704
 705		/* Non-group events are considered as leader */
 706		if (symbol_conf.event_group && !evsel__is_group_leader(pos)) {
 707			struct hists *leader_hists = evsel__hists(evsel__leader(pos));
 708
 709			hists__match(leader_hists, hists);
 710			hists__link(leader_hists, hists);
 711		}
 712	}
 713
 714	ui_progress__finish();
 715	return ret;
 716}
 717
 718static int hists__resort_cb(struct hist_entry *he, void *arg)
 719{
 720	struct report *rep = arg;
 721	struct symbol *sym = he->ms.sym;
 722
 723	if (rep->symbol_ipc && sym && !sym->annotate2) {
 724		struct evsel *evsel = hists_to_evsel(he->hists);
 725
 726		symbol__annotate2(&he->ms, evsel,
 727				  &annotation__default_options, NULL);
 728	}
 729
 730	return 0;
 731}
 732
 733static void report__output_resort(struct report *rep)
 734{
 735	struct ui_progress prog;
 736	struct evsel *pos;
 737
 738	ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 739
 740	evlist__for_each_entry(rep->session->evlist, pos) {
 741		evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep);
 742	}
 743
 744	ui_progress__finish();
 745}
 746
 747static int count_sample_event(struct perf_tool *tool __maybe_unused,
 748			      union perf_event *event __maybe_unused,
 749			      struct perf_sample *sample __maybe_unused,
 750			      struct evsel *evsel,
 751			      struct machine *machine __maybe_unused)
 752{
 753	struct hists *hists = evsel__hists(evsel);
 754
 755	hists__inc_nr_events(hists);
 756	return 0;
 757}
 758
 759static int count_lost_samples_event(struct perf_tool *tool,
 760				    union perf_event *event,
 761				    struct perf_sample *sample,
 762				    struct machine *machine __maybe_unused)
 763{
 764	struct report *rep = container_of(tool, struct report, tool);
 765	struct evsel *evsel;
 766
 767	evsel = evlist__id2evsel(rep->session->evlist, sample->id);
 768	if (evsel) {
 769		hists__inc_nr_lost_samples(evsel__hists(evsel),
 770					   event->lost_samples.lost);
 771	}
 772	return 0;
 773}
 774
 775static int process_attr(struct perf_tool *tool __maybe_unused,
 776			union perf_event *event,
 777			struct evlist **pevlist);
 778
 779static void stats_setup(struct report *rep)
 780{
 781	memset(&rep->tool, 0, sizeof(rep->tool));
 782	rep->tool.attr = process_attr;
 783	rep->tool.sample = count_sample_event;
 784	rep->tool.lost_samples = count_lost_samples_event;
 785	rep->tool.no_warn = true;
 786}
 787
 788static int stats_print(struct report *rep)
 789{
 790	struct perf_session *session = rep->session;
 791
 792	perf_session__fprintf_nr_events(session, stdout, rep->skip_empty);
 793	evlist__fprintf_nr_events(session->evlist, stdout, rep->skip_empty);
 794	return 0;
 795}
 796
 797static void tasks_setup(struct report *rep)
 798{
 799	memset(&rep->tool, 0, sizeof(rep->tool));
 800	rep->tool.ordered_events = true;
 801	if (rep->mmaps_mode) {
 802		rep->tool.mmap = perf_event__process_mmap;
 803		rep->tool.mmap2 = perf_event__process_mmap2;
 804	}
 805	rep->tool.attr = process_attr;
 806	rep->tool.comm = perf_event__process_comm;
 807	rep->tool.exit = perf_event__process_exit;
 808	rep->tool.fork = perf_event__process_fork;
 809	rep->tool.no_warn = true;
 810}
 811
 812struct task {
 813	struct thread		*thread;
 814	struct list_head	 list;
 815	struct list_head	 children;
 816};
 817
 818static struct task *tasks_list(struct task *task, struct machine *machine)
 819{
 820	struct thread *parent_thread, *thread = task->thread;
 821	struct task   *parent_task;
 822
 823	/* Already listed. */
 824	if (!list_empty(&task->list))
 825		return NULL;
 826
 827	/* Last one in the chain. */
 828	if (thread->ppid == -1)
 829		return task;
 830
 831	parent_thread = machine__find_thread(machine, -1, thread->ppid);
 832	if (!parent_thread)
 833		return ERR_PTR(-ENOENT);
 834
 835	parent_task = thread__priv(parent_thread);
 836	list_add_tail(&task->list, &parent_task->children);
 837	return tasks_list(parent_task, machine);
 838}
 839
 840static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 841{
 842	size_t printed = 0;
 843	struct map *map;
 844
 845	maps__for_each_entry(maps, map) {
 846		printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 847				   indent, "", map->start, map->end,
 848				   map->prot & PROT_READ ? 'r' : '-',
 849				   map->prot & PROT_WRITE ? 'w' : '-',
 850				   map->prot & PROT_EXEC ? 'x' : '-',
 851				   map->flags & MAP_SHARED ? 's' : 'p',
 852				   map->pgoff,
 853				   map->dso->id.ino, map->dso->name);
 854	}
 855
 856	return printed;
 857}
 858
 859static void task__print_level(struct task *task, FILE *fp, int level)
 860{
 861	struct thread *thread = task->thread;
 862	struct task *child;
 863	int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 864				  thread->pid_, thread->tid, thread->ppid,
 865				  level, "");
 866
 867	fprintf(fp, "%s\n", thread__comm_str(thread));
 868
 869	maps__fprintf_task(thread->maps, comm_indent, fp);
 870
 871	if (!list_empty(&task->children)) {
 872		list_for_each_entry(child, &task->children, list)
 873			task__print_level(child, fp, level + 1);
 874	}
 875}
 876
 877static int tasks_print(struct report *rep, FILE *fp)
 878{
 879	struct perf_session *session = rep->session;
 880	struct machine      *machine = &session->machines.host;
 881	struct task *tasks, *task;
 882	unsigned int nr = 0, itask = 0, i;
 883	struct rb_node *nd;
 884	LIST_HEAD(list);
 885
 886	/*
 887	 * No locking needed while accessing machine->threads,
 888	 * because --tasks is single threaded command.
 889	 */
 890
 891	/* Count all the threads. */
 892	for (i = 0; i < THREADS__TABLE_SIZE; i++)
 893		nr += machine->threads[i].nr;
 894
 895	tasks = malloc(sizeof(*tasks) * nr);
 896	if (!tasks)
 897		return -ENOMEM;
 898
 899	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 900		struct threads *threads = &machine->threads[i];
 901
 902		for (nd = rb_first_cached(&threads->entries); nd;
 903		     nd = rb_next(nd)) {
 904			task = tasks + itask++;
 905
 906			task->thread = rb_entry(nd, struct thread, rb_node);
 907			INIT_LIST_HEAD(&task->children);
 908			INIT_LIST_HEAD(&task->list);
 909			thread__set_priv(task->thread, task);
 910		}
 911	}
 912
 913	/*
 914	 * Iterate every task down to the unprocessed parent
 915	 * and link all in task children list. Task with no
 916	 * parent is added into 'list'.
 917	 */
 918	for (itask = 0; itask < nr; itask++) {
 919		task = tasks + itask;
 920
 921		if (!list_empty(&task->list))
 922			continue;
 923
 924		task = tasks_list(task, machine);
 925		if (IS_ERR(task)) {
 926			pr_err("Error: failed to process tasks\n");
 927			free(tasks);
 928			return PTR_ERR(task);
 929		}
 930
 931		if (task)
 932			list_add_tail(&task->list, &list);
 933	}
 934
 935	fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 936
 937	list_for_each_entry(task, &list, list)
 938		task__print_level(task, fp, 0);
 939
 940	free(tasks);
 941	return 0;
 942}
 943
 944static int __cmd_report(struct report *rep)
 945{
 946	int ret;
 947	struct perf_session *session = rep->session;
 948	struct evsel *pos;
 949	struct perf_data *data = session->data;
 950
 951	signal(SIGINT, sig_handler);
 952
 953	if (rep->cpu_list) {
 954		ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 955					       rep->cpu_bitmap);
 956		if (ret) {
 957			ui__error("failed to set cpu bitmap\n");
 958			return ret;
 959		}
 960		session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 961	}
 962
 963	if (rep->show_threads) {
 964		ret = perf_read_values_init(&rep->show_threads_values);
 965		if (ret)
 966			return ret;
 967	}
 968
 969	ret = report__setup_sample_type(rep);
 970	if (ret) {
 971		/* report__setup_sample_type() already showed error message */
 972		return ret;
 973	}
 974
 975	if (rep->stats_mode)
 976		stats_setup(rep);
 977
 978	if (rep->tasks_mode)
 979		tasks_setup(rep);
 980
 981	ret = perf_session__process_events(session);
 982	if (ret) {
 983		ui__error("failed to process sample\n");
 984		return ret;
 985	}
 986
 987	evlist__check_mem_load_aux(session->evlist);
 988
 989	if (rep->stats_mode)
 990		return stats_print(rep);
 991
 992	if (rep->tasks_mode)
 993		return tasks_print(rep, stdout);
 994
 995	report__warn_kptr_restrict(rep);
 996
 997	evlist__for_each_entry(session->evlist, pos)
 998		rep->nr_entries += evsel__hists(pos)->nr_entries;
 999
1000	if (use_browser == 0) {
1001		if (verbose > 3)
1002			perf_session__fprintf(session, stdout);
1003
1004		if (verbose > 2)
1005			perf_session__fprintf_dsos(session, stdout);
1006
1007		if (dump_trace) {
1008			perf_session__fprintf_nr_events(session, stdout,
1009							rep->skip_empty);
1010			evlist__fprintf_nr_events(session->evlist, stdout,
1011						  rep->skip_empty);
1012			return 0;
1013		}
1014	}
1015
1016	ret = report__collapse_hists(rep);
1017	if (ret) {
1018		ui__error("failed to process hist entry\n");
1019		return ret;
1020	}
1021
1022	if (session_done())
1023		return 0;
1024
1025	/*
1026	 * recalculate number of entries after collapsing since it
1027	 * might be changed during the collapse phase.
1028	 */
1029	rep->nr_entries = 0;
1030	evlist__for_each_entry(session->evlist, pos)
1031		rep->nr_entries += evsel__hists(pos)->nr_entries;
1032
1033	if (rep->nr_entries == 0) {
1034		ui__error("The %s data has no samples!\n", data->path);
1035		return 0;
1036	}
1037
1038	report__output_resort(rep);
1039
1040	if (rep->total_cycles_mode) {
1041		int block_hpps[6] = {
1042			PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
1043			PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
1044			PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
1045			PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
1046			PERF_HPP_REPORT__BLOCK_RANGE,
1047			PERF_HPP_REPORT__BLOCK_DSO,
1048		};
1049
1050		rep->block_reports = block_info__create_report(session->evlist,
1051							       rep->total_cycles,
1052							       block_hpps, 6,
1053							       &rep->nr_block_reports);
1054		if (!rep->block_reports)
1055			return -1;
1056	}
1057
1058	return report__browse_hists(rep);
1059}
1060
1061static int
1062report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
1063{
1064	struct callchain_param *callchain = opt->value;
1065
1066	callchain->enabled = !unset;
1067	/*
1068	 * --no-call-graph
1069	 */
1070	if (unset) {
1071		symbol_conf.use_callchain = false;
1072		callchain->mode = CHAIN_NONE;
1073		return 0;
1074	}
1075
1076	return parse_callchain_report_opt(arg);
1077}
1078
1079static int
1080parse_time_quantum(const struct option *opt, const char *arg,
1081		   int unset __maybe_unused)
1082{
1083	unsigned long *time_q = opt->value;
1084	char *end;
1085
1086	*time_q = strtoul(arg, &end, 0);
1087	if (end == arg)
1088		goto parse_err;
1089	if (*time_q == 0) {
1090		pr_err("time quantum cannot be 0");
1091		return -1;
1092	}
1093	end = skip_spaces(end);
1094	if (*end == 0)
1095		return 0;
1096	if (!strcmp(end, "s")) {
1097		*time_q *= NSEC_PER_SEC;
1098		return 0;
1099	}
1100	if (!strcmp(end, "ms")) {
1101		*time_q *= NSEC_PER_MSEC;
1102		return 0;
1103	}
1104	if (!strcmp(end, "us")) {
1105		*time_q *= NSEC_PER_USEC;
1106		return 0;
1107	}
1108	if (!strcmp(end, "ns"))
1109		return 0;
1110parse_err:
1111	pr_err("Cannot parse time quantum `%s'\n", arg);
1112	return -1;
1113}
1114
1115int
1116report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
1117				const char *arg, int unset __maybe_unused)
1118{
1119	if (arg) {
1120		int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
1121		if (err) {
1122			char buf[BUFSIZ];
1123			regerror(err, &ignore_callees_regex, buf, sizeof(buf));
1124			pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
1125			return -1;
1126		}
1127		have_ignore_callees = 1;
1128	}
1129
1130	return 0;
1131}
1132
1133static int
1134parse_branch_mode(const struct option *opt,
1135		  const char *str __maybe_unused, int unset)
1136{
1137	int *branch_mode = opt->value;
1138
1139	*branch_mode = !unset;
1140	return 0;
1141}
1142
1143static int
1144parse_percent_limit(const struct option *opt, const char *str,
1145		    int unset __maybe_unused)
1146{
1147	struct report *rep = opt->value;
1148	double pcnt = strtof(str, NULL);
1149
1150	rep->min_percent = pcnt;
1151	callchain_param.min_percent = pcnt;
1152	return 0;
1153}
1154
1155static int process_attr(struct perf_tool *tool __maybe_unused,
1156			union perf_event *event,
1157			struct evlist **pevlist)
1158{
1159	u64 sample_type;
1160	int err;
1161
1162	err = perf_event__process_attr(tool, event, pevlist);
1163	if (err)
1164		return err;
1165
1166	/*
1167	 * Check if we need to enable callchains based
1168	 * on events sample_type.
1169	 */
1170	sample_type = evlist__combined_sample_type(*pevlist);
1171	callchain_param_setup(sample_type, perf_env__arch((*pevlist)->env));
1172	return 0;
1173}
1174
1175int cmd_report(int argc, const char **argv)
1176{
1177	struct perf_session *session;
1178	struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
1179	struct stat st;
1180	bool has_br_stack = false;
1181	int branch_mode = -1;
1182	int last_key = 0;
1183	bool branch_call_mode = false;
1184#define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
1185	static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
1186						    CALLCHAIN_REPORT_HELP
1187						    "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
1188	char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
1189	const char * const report_usage[] = {
1190		"perf report [<options>]",
1191		NULL
1192	};
1193	struct report report = {
1194		.tool = {
1195			.sample		 = process_sample_event,
1196			.mmap		 = perf_event__process_mmap,
1197			.mmap2		 = perf_event__process_mmap2,
1198			.comm		 = perf_event__process_comm,
1199			.namespaces	 = perf_event__process_namespaces,
1200			.cgroup		 = perf_event__process_cgroup,
1201			.exit		 = perf_event__process_exit,
1202			.fork		 = perf_event__process_fork,
1203			.lost		 = perf_event__process_lost,
1204			.read		 = process_read_event,
1205			.attr		 = process_attr,
1206#ifdef HAVE_LIBTRACEEVENT
1207			.tracing_data	 = perf_event__process_tracing_data,
1208#endif
1209			.build_id	 = perf_event__process_build_id,
1210			.id_index	 = perf_event__process_id_index,
1211			.auxtrace_info	 = perf_event__process_auxtrace_info,
1212			.auxtrace	 = perf_event__process_auxtrace,
1213			.event_update	 = perf_event__process_event_update,
1214			.feature	 = process_feature_event,
1215			.ordered_events	 = true,
1216			.ordering_requires_timestamps = true,
1217		},
1218		.max_stack		 = PERF_MAX_STACK_DEPTH,
1219		.pretty_printing_style	 = "normal",
1220		.socket_filter		 = -1,
1221		.annotation_opts	 = annotation__default_options,
1222		.skip_empty		 = true,
1223	};
1224	char *sort_order_help = sort_help("sort by key(s):");
1225	char *field_order_help = sort_help("output field(s): overhead period sample ");
1226	const struct option options[] = {
1227	OPT_STRING('i', "input", &input_name, "file",
1228		    "input file name"),
1229	OPT_INCR('v', "verbose", &verbose,
1230		    "be more verbose (show symbol address, etc)"),
1231	OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any warnings or messages"),
1232	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1233		    "dump raw trace in ASCII"),
1234	OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1235	OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1236	OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1237	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1238		   "file", "vmlinux pathname"),
1239	OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1240                    "don't load vmlinux even if found"),
1241	OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1242		   "file", "kallsyms pathname"),
1243	OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1244	OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1245		    "load module symbols - WARNING: use only with -k and LIVE kernel"),
1246	OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1247		    "Show a column with the number of samples"),
1248	OPT_BOOLEAN('T', "threads", &report.show_threads,
1249		    "Show per-thread event counters"),
1250	OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1251		   "pretty printing style key: normal raw"),
1252#ifdef HAVE_SLANG_SUPPORT
1253	OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1254#endif
1255#ifdef HAVE_GTK2_SUPPORT
1256	OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1257#endif
1258	OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1259		    "Use the stdio interface"),
1260	OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1261	OPT_BOOLEAN(0, "header-only", &report.header_only,
1262		    "Show only data header."),
1263	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1264		   sort_order_help),
1265	OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1266		   field_order_help),
1267	OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1268		    "Show sample percentage for different cpu modes"),
1269	OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1270		    "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1271	OPT_STRING('p', "parent", &parent_pattern, "regex",
1272		   "regex filter to identify parent, see: '--sort parent'"),
1273	OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1274		    "Only display entries with parent-match"),
1275	OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1276			     "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1277			     report_callchain_help, &report_parse_callchain_opt,
1278			     callchain_default_opt),
1279	OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1280		    "Accumulate callchains of children and show total overhead as well. "
1281		    "Enabled by default, use --no-children to disable."),
1282	OPT_INTEGER(0, "max-stack", &report.max_stack,
1283		    "Set the maximum stack depth when parsing the callchain, "
1284		    "anything beyond the specified depth will be ignored. "
1285		    "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1286	OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1287		    "alias for inverted call graph"),
1288	OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1289		   "ignore callees of these functions in call graphs",
1290		   report_parse_ignore_callees_opt),
1291	OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1292		   "only consider symbols in these dsos"),
1293	OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1294		   "only consider symbols in these comms"),
1295	OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1296		   "only consider symbols in these pids"),
1297	OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1298		   "only consider symbols in these tids"),
1299	OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1300		   "only consider these symbols"),
1301	OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1302		   "only show symbols that (partially) match with this filter"),
1303	OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1304		   "width[,width...]",
1305		   "don't try to adjust column width, use these fixed values"),
1306	OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1307		   "separator for columns, no spaces will be added between "
1308		   "columns '.' is reserved."),
1309	OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1310		    "Only display entries resolved to a symbol"),
1311	OPT_CALLBACK(0, "symfs", NULL, "directory",
1312		     "Look for files with symbols relative to this directory",
1313		     symbol__config_symfs),
1314	OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1315		   "list of cpus to profile"),
1316	OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1317		    "Display extended information about perf.data file"),
1318	OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1319		    "Interleave source code with assembly code (default)"),
1320	OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1321		    "Display raw encoding of assembly instructions (default)"),
1322	OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1323		   "Specify disassembler style (e.g. -M intel for intel syntax)"),
1324	OPT_STRING(0, "prefix", &report.annotation_opts.prefix, "prefix",
1325		    "Add prefix to source file path names in programs (with --prefix-strip)"),
1326	OPT_STRING(0, "prefix-strip", &report.annotation_opts.prefix_strip, "N",
1327		    "Strip first N entries of source file path name in programs (with --prefix)"),
1328	OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1329		    "Show a column with the sum of periods"),
1330	OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1331		    "Show event group information together"),
1332	OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
1333		    "Sort the output by the event at the index n in group. "
1334		    "If n is invalid, sort by the first event. "
1335		    "WARNING: should be used on grouped events."),
1336	OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1337		    "use branch records for per branch histogram filling",
1338		    parse_branch_mode),
1339	OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1340		    "add last branch records to call history"),
1341	OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1342		   "objdump binary to use for disassembly and annotations"),
1343	OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1344		    "Disable symbol demangling"),
1345	OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1346		    "Enable kernel symbol demangling"),
1347	OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1348	OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
1349		    "Number of samples to save per histogram entry for individual browsing"),
1350	OPT_CALLBACK(0, "percent-limit", &report, "percent",
1351		     "Don't show entries under that percent", parse_percent_limit),
1352	OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1353		     "how to display percentage of filtered entries", parse_filter_percentage),
1354	OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1355			    "Instruction Tracing options\n" ITRACE_HELP,
1356			    itrace_parse_synth_opts),
1357	OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1358			"Show full source file name path for source lines"),
1359	OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1360		    "Show callgraph from reference event"),
1361	OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr,
1362		    "Enable LBR callgraph stitching approach"),
1363	OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1364		    "only show processor socket that match with this filter"),
1365	OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1366		    "Show raw trace event output (do not use print fmt or plugins)"),
1367	OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1368		    "Show entries in a hierarchy"),
1369	OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1370			     "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1371			     stdio__config_color, "always"),
1372	OPT_STRING(0, "time", &report.time_str, "str",
1373		   "Time span of interest (start,stop)"),
1374	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1375		    "Show inline function"),
1376	OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1377		     "Set percent type local/global-period/hits",
1378		     annotate_parse_percent_type),
1379	OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
1380	OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
1381		     "Set time quantum for time sort key (default 100ms)",
1382		     parse_time_quantum),
1383	OPTS_EVSWITCH(&report.evswitch),
1384	OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode,
1385		    "Sort all blocks by 'Sampled Cycles%'"),
1386	OPT_BOOLEAN(0, "disable-order", &report.disable_order,
1387		    "Disable raw trace ordering"),
1388	OPT_BOOLEAN(0, "skip-empty", &report.skip_empty,
1389		    "Do not display empty (or dummy) events in the output"),
1390	OPT_END()
1391	};
1392	struct perf_data data = {
1393		.mode  = PERF_DATA_MODE_READ,
1394	};
1395	int ret = hists__init();
1396	char sort_tmp[128];
1397
1398	if (ret < 0)
1399		goto exit;
1400
1401	ret = perf_config(report__config, &report);
1402	if (ret)
1403		goto exit;
1404
1405	argc = parse_options(argc, argv, options, report_usage, 0);
1406	if (argc) {
1407		/*
1408		 * Special case: if there's an argument left then assume that
1409		 * it's a symbol filter:
1410		 */
1411		if (argc > 1)
1412			usage_with_options(report_usage, options);
1413
1414		report.symbol_filter_str = argv[0];
1415	}
1416
1417	if (annotate_check_args(&report.annotation_opts) < 0) {
1418		ret = -EINVAL;
1419		goto exit;
1420	}
1421
1422	if (report.mmaps_mode)
1423		report.tasks_mode = true;
1424
1425	if (dump_trace && report.disable_order)
1426		report.tool.ordered_events = false;
1427
1428	if (quiet)
1429		perf_quiet_option();
1430
1431	ret = symbol__validate_sym_arguments();
1432	if (ret)
 
 
1433		goto exit;
 
 
 
 
 
 
 
1434
1435	if (report.inverted_callchain)
1436		callchain_param.order = ORDER_CALLER;
1437	if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1438		callchain_param.order = ORDER_CALLER;
1439
1440	if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
1441	    (int)itrace_synth_opts.callchain_sz > report.max_stack)
1442		report.max_stack = itrace_synth_opts.callchain_sz;
1443
1444	if (!input_name || !strlen(input_name)) {
1445		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1446			input_name = "-";
1447		else
1448			input_name = "perf.data";
1449	}
1450
1451	data.path  = input_name;
1452	data.force = symbol_conf.force;
1453
1454repeat:
1455	session = perf_session__new(&data, &report.tool);
1456	if (IS_ERR(session)) {
1457		ret = PTR_ERR(session);
1458		goto exit;
1459	}
1460
1461	ret = evswitch__init(&report.evswitch, session->evlist, stderr);
1462	if (ret)
1463		goto exit;
1464
1465	if (zstd_init(&(session->zstd_data), 0) < 0)
1466		pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
1467
1468	if (report.queue_size) {
1469		ordered_events__set_alloc_size(&session->ordered_events,
1470					       report.queue_size);
1471	}
1472
1473	session->itrace_synth_opts = &itrace_synth_opts;
1474
1475	report.session = session;
1476
1477	has_br_stack = perf_header__has_feat(&session->header,
1478					     HEADER_BRANCH_STACK);
1479	if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER)
1480		has_br_stack = false;
1481
1482	setup_forced_leader(&report, session->evlist);
1483
1484	if (symbol_conf.group_sort_idx && !session->evlist->core.nr_groups) {
1485		parse_options_usage(NULL, options, "group-sort-idx", 0);
1486		ret = -EINVAL;
1487		goto error;
1488	}
1489
1490	if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch)
1491		has_br_stack = true;
1492
1493	if (has_br_stack && branch_call_mode)
1494		symbol_conf.show_branchflag_count = true;
1495
1496	memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1497
1498	/*
1499	 * Branch mode is a tristate:
1500	 * -1 means default, so decide based on the file having branch data.
1501	 * 0/1 means the user chose a mode.
1502	 */
1503	if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1504	    !branch_call_mode) {
1505		sort__mode = SORT_MODE__BRANCH;
1506		symbol_conf.cumulate_callchain = false;
1507	}
1508	if (branch_call_mode) {
1509		callchain_param.key = CCKEY_ADDRESS;
1510		callchain_param.branch_callstack = true;
1511		symbol_conf.use_callchain = true;
1512		callchain_register_param(&callchain_param);
1513		if (sort_order == NULL)
1514			sort_order = "srcline,symbol,dso";
1515	}
1516
1517	if (report.mem_mode) {
1518		if (sort__mode == SORT_MODE__BRANCH) {
1519			pr_err("branch and mem mode incompatible\n");
1520			goto error;
1521		}
1522		sort__mode = SORT_MODE__MEMORY;
1523		symbol_conf.cumulate_callchain = false;
1524	}
1525
1526	if (symbol_conf.report_hierarchy) {
1527		/* disable incompatible options */
1528		symbol_conf.cumulate_callchain = false;
1529
1530		if (field_order) {
1531			pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1532			parse_options_usage(report_usage, options, "F", 1);
1533			parse_options_usage(NULL, options, "hierarchy", 0);
1534			goto error;
1535		}
1536
1537		perf_hpp_list.need_collapse = true;
1538	}
1539
1540	if (report.use_stdio)
1541		use_browser = 0;
1542#ifdef HAVE_SLANG_SUPPORT
1543	else if (report.use_tui)
1544		use_browser = 1;
1545#endif
1546#ifdef HAVE_GTK2_SUPPORT
1547	else if (report.use_gtk)
1548		use_browser = 2;
1549#endif
1550
1551	/* Force tty output for header output and per-thread stat. */
1552	if (report.header || report.header_only || report.show_threads)
1553		use_browser = 0;
1554	if (report.header || report.header_only)
1555		report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1556	if (report.show_full_info)
1557		report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1558	if (report.stats_mode || report.tasks_mode)
1559		use_browser = 0;
1560	if (report.stats_mode && report.tasks_mode) {
1561		pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1562		goto error;
1563	}
1564
1565	if (report.total_cycles_mode) {
1566		if (sort__mode != SORT_MODE__BRANCH)
1567			report.total_cycles_mode = false;
1568		else
1569			sort_order = NULL;
1570	}
1571
1572	if (strcmp(input_name, "-") != 0)
1573		setup_browser(true);
1574	else
1575		use_browser = 0;
1576
1577	if (sort_order && strstr(sort_order, "ipc")) {
1578		parse_options_usage(report_usage, options, "s", 1);
1579		goto error;
1580	}
1581
1582	if (sort_order && strstr(sort_order, "symbol")) {
1583		if (sort__mode == SORT_MODE__BRANCH) {
1584			snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1585				 sort_order, "ipc_lbr");
1586			report.symbol_ipc = true;
1587		} else {
1588			snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1589				 sort_order, "ipc_null");
1590		}
1591
1592		sort_order = sort_tmp;
1593	}
1594
1595	if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
1596	    (setup_sorting(session->evlist) < 0)) {
1597		if (sort_order)
1598			parse_options_usage(report_usage, options, "s", 1);
1599		if (field_order)
1600			parse_options_usage(sort_order ? NULL : report_usage,
1601					    options, "F", 1);
1602		goto error;
1603	}
1604
1605	if ((report.header || report.header_only) && !quiet) {
1606		perf_session__fprintf_info(session, stdout,
1607					   report.show_full_info);
1608		if (report.header_only) {
1609			if (data.is_pipe) {
1610				/*
1611				 * we need to process first few records
1612				 * which contains PERF_RECORD_HEADER_FEATURE.
1613				 */
1614				perf_session__process_events(session);
1615			}
1616			ret = 0;
1617			goto error;
1618		}
1619	} else if (use_browser == 0 && !quiet &&
1620		   !report.stats_mode && !report.tasks_mode) {
1621		fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1622		      stdout);
1623	}
1624
1625	/*
1626	 * Only in the TUI browser we are doing integrated annotation,
1627	 * so don't allocate extra space that won't be used in the stdio
1628	 * implementation.
1629	 */
1630	if (ui__has_annotation() || report.symbol_ipc ||
1631	    report.total_cycles_mode) {
1632		ret = symbol__annotation_init();
1633		if (ret < 0)
1634			goto error;
1635		/*
1636 		 * For searching by name on the "Browse map details".
1637 		 * providing it only in verbose mode not to bloat too
1638 		 * much struct symbol.
1639 		 */
1640		if (verbose > 0) {
1641			/*
1642			 * XXX: Need to provide a less kludgy way to ask for
1643			 * more space per symbol, the u32 is for the index on
1644			 * the ui browser.
1645			 * See symbol__browser_index.
1646			 */
1647			symbol_conf.priv_size += sizeof(u32);
1648			symbol_conf.sort_by_name = true;
1649		}
1650		annotation_config__init(&report.annotation_opts);
1651	}
1652
1653	if (symbol__init(&session->header.env) < 0)
1654		goto error;
1655
1656	if (report.time_str) {
1657		ret = perf_time__parse_for_ranges(report.time_str, session,
1658						  &report.ptime_range,
1659						  &report.range_size,
1660						  &report.range_num);
1661		if (ret < 0)
1662			goto error;
1663
1664		itrace_synth_opts__set_time_range(&itrace_synth_opts,
1665						  report.ptime_range,
1666						  report.range_num);
1667	}
1668
1669#ifdef HAVE_LIBTRACEEVENT
1670	if (session->tevent.pevent &&
1671	    tep_set_function_resolver(session->tevent.pevent,
1672				      machine__resolve_kernel_addr,
1673				      &session->machines.host) < 0) {
1674		pr_err("%s: failed to set libtraceevent function resolver\n",
1675		       __func__);
1676		return -1;
1677	}
1678#endif
1679	sort__setup_elide(stdout);
1680
1681	ret = __cmd_report(&report);
1682	if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
1683		perf_session__delete(session);
1684		last_key = K_SWITCH_INPUT_DATA;
1685		goto repeat;
1686	} else
1687		ret = 0;
1688
1689error:
1690	if (report.ptime_range) {
1691		itrace_synth_opts__clear_time_range(&itrace_synth_opts);
1692		zfree(&report.ptime_range);
1693	}
1694
1695	if (report.block_reports) {
1696		block_info__free_report(report.block_reports,
1697					report.nr_block_reports);
1698		report.block_reports = NULL;
1699	}
1700
1701	zstd_fini(&(session->zstd_data));
1702	perf_session__delete(session);
1703exit:
1704	free(sort_order_help);
1705	free(field_order_help);
1706	return ret;
1707}