xref: /openbmc/linux/tools/perf/builtin-script.c (revision 3df83c91)
1 // SPDX-License-Identifier: GPL-2.0
2 #include "builtin.h"
3 
4 #include "util/counts.h"
5 #include "util/debug.h"
6 #include "util/dso.h"
7 #include <subcmd/exec-cmd.h>
8 #include "util/header.h"
9 #include <subcmd/parse-options.h>
10 #include "util/perf_regs.h"
11 #include "util/session.h"
12 #include "util/tool.h"
13 #include "util/map.h"
14 #include "util/srcline.h"
15 #include "util/symbol.h"
16 #include "util/thread.h"
17 #include "util/trace-event.h"
18 #include "util/evlist.h"
19 #include "util/evsel.h"
20 #include "util/evsel_fprintf.h"
21 #include "util/evswitch.h"
22 #include "util/sort.h"
23 #include "util/data.h"
24 #include "util/auxtrace.h"
25 #include "util/cpumap.h"
26 #include "util/thread_map.h"
27 #include "util/stat.h"
28 #include "util/color.h"
29 #include "util/string2.h"
30 #include "util/thread-stack.h"
31 #include "util/time-utils.h"
32 #include "util/path.h"
33 #include "util/event.h"
34 #include "ui/ui.h"
35 #include "print_binary.h"
36 #include "archinsn.h"
37 #include <linux/bitmap.h>
38 #include <linux/kernel.h>
39 #include <linux/stringify.h>
40 #include <linux/time64.h>
41 #include <linux/zalloc.h>
42 #include <sys/utsname.h>
43 #include "asm/bug.h"
44 #include "util/mem-events.h"
45 #include "util/dump-insn.h"
46 #include <dirent.h>
47 #include <errno.h>
48 #include <inttypes.h>
49 #include <signal.h>
50 #include <sys/param.h>
51 #include <sys/types.h>
52 #include <sys/stat.h>
53 #include <fcntl.h>
54 #include <unistd.h>
55 #include <subcmd/pager.h>
56 #include <perf/evlist.h>
57 #include <linux/err.h>
58 #include "util/record.h"
59 #include "util/util.h"
60 #include "perf.h"
61 
62 #include <linux/ctype.h>
63 
64 static char const		*script_name;
65 static char const		*generate_script_lang;
66 static bool			reltime;
67 static bool			deltatime;
68 static u64			initial_time;
69 static u64			previous_time;
70 static bool			debug_mode;
71 static u64			last_timestamp;
72 static u64			nr_unordered;
73 static bool			no_callchain;
74 static bool			latency_format;
75 static bool			system_wide;
76 static bool			print_flags;
77 static const char		*cpu_list;
78 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
79 static struct perf_stat_config	stat_config;
80 static int			max_blocks;
81 static bool			native_arch;
82 
83 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
84 
85 enum perf_output_field {
86 	PERF_OUTPUT_COMM            = 1ULL << 0,
87 	PERF_OUTPUT_TID             = 1ULL << 1,
88 	PERF_OUTPUT_PID             = 1ULL << 2,
89 	PERF_OUTPUT_TIME            = 1ULL << 3,
90 	PERF_OUTPUT_CPU             = 1ULL << 4,
91 	PERF_OUTPUT_EVNAME          = 1ULL << 5,
92 	PERF_OUTPUT_TRACE           = 1ULL << 6,
93 	PERF_OUTPUT_IP              = 1ULL << 7,
94 	PERF_OUTPUT_SYM             = 1ULL << 8,
95 	PERF_OUTPUT_DSO             = 1ULL << 9,
96 	PERF_OUTPUT_ADDR            = 1ULL << 10,
97 	PERF_OUTPUT_SYMOFFSET       = 1ULL << 11,
98 	PERF_OUTPUT_SRCLINE         = 1ULL << 12,
99 	PERF_OUTPUT_PERIOD          = 1ULL << 13,
100 	PERF_OUTPUT_IREGS	    = 1ULL << 14,
101 	PERF_OUTPUT_BRSTACK	    = 1ULL << 15,
102 	PERF_OUTPUT_BRSTACKSYM	    = 1ULL << 16,
103 	PERF_OUTPUT_DATA_SRC	    = 1ULL << 17,
104 	PERF_OUTPUT_WEIGHT	    = 1ULL << 18,
105 	PERF_OUTPUT_BPF_OUTPUT	    = 1ULL << 19,
106 	PERF_OUTPUT_CALLINDENT	    = 1ULL << 20,
107 	PERF_OUTPUT_INSN	    = 1ULL << 21,
108 	PERF_OUTPUT_INSNLEN	    = 1ULL << 22,
109 	PERF_OUTPUT_BRSTACKINSN	    = 1ULL << 23,
110 	PERF_OUTPUT_BRSTACKOFF	    = 1ULL << 24,
111 	PERF_OUTPUT_SYNTH           = 1ULL << 25,
112 	PERF_OUTPUT_PHYS_ADDR       = 1ULL << 26,
113 	PERF_OUTPUT_UREGS	    = 1ULL << 27,
114 	PERF_OUTPUT_METRIC	    = 1ULL << 28,
115 	PERF_OUTPUT_MISC            = 1ULL << 29,
116 	PERF_OUTPUT_SRCCODE	    = 1ULL << 30,
117 	PERF_OUTPUT_IPC             = 1ULL << 31,
118 	PERF_OUTPUT_TOD             = 1ULL << 32,
119 	PERF_OUTPUT_DATA_PAGE_SIZE  = 1ULL << 33,
120 	PERF_OUTPUT_CODE_PAGE_SIZE  = 1ULL << 34,
121 };
122 
123 struct perf_script {
124 	struct perf_tool	tool;
125 	struct perf_session	*session;
126 	bool			show_task_events;
127 	bool			show_mmap_events;
128 	bool			show_switch_events;
129 	bool			show_namespace_events;
130 	bool			show_lost_events;
131 	bool			show_round_events;
132 	bool			show_bpf_events;
133 	bool			show_cgroup_events;
134 	bool			show_text_poke_events;
135 	bool			allocated;
136 	bool			per_event_dump;
137 	bool			stitch_lbr;
138 	struct evswitch		evswitch;
139 	struct perf_cpu_map	*cpus;
140 	struct perf_thread_map *threads;
141 	int			name_width;
142 	const char              *time_str;
143 	struct perf_time_interval *ptime_range;
144 	int			range_size;
145 	int			range_num;
146 };
147 
148 struct output_option {
149 	const char *str;
150 	enum perf_output_field field;
151 } all_output_options[] = {
152 	{.str = "comm",  .field = PERF_OUTPUT_COMM},
153 	{.str = "tid",   .field = PERF_OUTPUT_TID},
154 	{.str = "pid",   .field = PERF_OUTPUT_PID},
155 	{.str = "time",  .field = PERF_OUTPUT_TIME},
156 	{.str = "cpu",   .field = PERF_OUTPUT_CPU},
157 	{.str = "event", .field = PERF_OUTPUT_EVNAME},
158 	{.str = "trace", .field = PERF_OUTPUT_TRACE},
159 	{.str = "ip",    .field = PERF_OUTPUT_IP},
160 	{.str = "sym",   .field = PERF_OUTPUT_SYM},
161 	{.str = "dso",   .field = PERF_OUTPUT_DSO},
162 	{.str = "addr",  .field = PERF_OUTPUT_ADDR},
163 	{.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
164 	{.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
165 	{.str = "period", .field = PERF_OUTPUT_PERIOD},
166 	{.str = "iregs", .field = PERF_OUTPUT_IREGS},
167 	{.str = "uregs", .field = PERF_OUTPUT_UREGS},
168 	{.str = "brstack", .field = PERF_OUTPUT_BRSTACK},
169 	{.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM},
170 	{.str = "data_src", .field = PERF_OUTPUT_DATA_SRC},
171 	{.str = "weight",   .field = PERF_OUTPUT_WEIGHT},
172 	{.str = "bpf-output",   .field = PERF_OUTPUT_BPF_OUTPUT},
173 	{.str = "callindent", .field = PERF_OUTPUT_CALLINDENT},
174 	{.str = "insn", .field = PERF_OUTPUT_INSN},
175 	{.str = "insnlen", .field = PERF_OUTPUT_INSNLEN},
176 	{.str = "brstackinsn", .field = PERF_OUTPUT_BRSTACKINSN},
177 	{.str = "brstackoff", .field = PERF_OUTPUT_BRSTACKOFF},
178 	{.str = "synth", .field = PERF_OUTPUT_SYNTH},
179 	{.str = "phys_addr", .field = PERF_OUTPUT_PHYS_ADDR},
180 	{.str = "metric", .field = PERF_OUTPUT_METRIC},
181 	{.str = "misc", .field = PERF_OUTPUT_MISC},
182 	{.str = "srccode", .field = PERF_OUTPUT_SRCCODE},
183 	{.str = "ipc", .field = PERF_OUTPUT_IPC},
184 	{.str = "tod", .field = PERF_OUTPUT_TOD},
185 	{.str = "data_page_size", .field = PERF_OUTPUT_DATA_PAGE_SIZE},
186 	{.str = "code_page_size", .field = PERF_OUTPUT_CODE_PAGE_SIZE},
187 };
188 
189 enum {
190 	OUTPUT_TYPE_SYNTH = PERF_TYPE_MAX,
191 	OUTPUT_TYPE_OTHER,
192 	OUTPUT_TYPE_MAX
193 };
194 
195 /* default set to maintain compatibility with current format */
196 static struct {
197 	bool user_set;
198 	bool wildcard_set;
199 	unsigned int print_ip_opts;
200 	u64 fields;
201 	u64 invalid_fields;
202 	u64 user_set_fields;
203 	u64 user_unset_fields;
204 } output[OUTPUT_TYPE_MAX] = {
205 
206 	[PERF_TYPE_HARDWARE] = {
207 		.user_set = false,
208 
209 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
210 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
211 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
212 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
213 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD,
214 
215 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
216 	},
217 
218 	[PERF_TYPE_SOFTWARE] = {
219 		.user_set = false,
220 
221 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
222 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
223 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
224 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
225 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD |
226 			      PERF_OUTPUT_BPF_OUTPUT,
227 
228 		.invalid_fields = PERF_OUTPUT_TRACE,
229 	},
230 
231 	[PERF_TYPE_TRACEPOINT] = {
232 		.user_set = false,
233 
234 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
235 				  PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
236 				  PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE
237 	},
238 
239 	[PERF_TYPE_HW_CACHE] = {
240 		.user_set = false,
241 
242 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
243 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
244 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
245 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
246 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD,
247 
248 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
249 	},
250 
251 	[PERF_TYPE_RAW] = {
252 		.user_set = false,
253 
254 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
255 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
256 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
257 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
258 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD |
259 			      PERF_OUTPUT_ADDR | PERF_OUTPUT_DATA_SRC |
260 			      PERF_OUTPUT_WEIGHT | PERF_OUTPUT_PHYS_ADDR |
261 			      PERF_OUTPUT_DATA_PAGE_SIZE | PERF_OUTPUT_CODE_PAGE_SIZE,
262 
263 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
264 	},
265 
266 	[PERF_TYPE_BREAKPOINT] = {
267 		.user_set = false,
268 
269 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
270 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
271 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
272 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
273 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD,
274 
275 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
276 	},
277 
278 	[OUTPUT_TYPE_SYNTH] = {
279 		.user_set = false,
280 
281 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
282 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
283 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
284 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
285 			      PERF_OUTPUT_DSO | PERF_OUTPUT_SYNTH,
286 
287 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
288 	},
289 
290 	[OUTPUT_TYPE_OTHER] = {
291 		.user_set = false,
292 
293 		.fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
294 			      PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
295 			      PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
296 			      PERF_OUTPUT_SYM | PERF_OUTPUT_SYMOFFSET |
297 			      PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD,
298 
299 		.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
300 	},
301 };
302 
303 struct evsel_script {
304        char *filename;
305        FILE *fp;
306        u64  samples;
307        /* For metric output */
308        u64  val;
309        int  gnum;
310 };
311 
312 static inline struct evsel_script *evsel_script(struct evsel *evsel)
313 {
314 	return (struct evsel_script *)evsel->priv;
315 }
316 
317 static struct evsel_script *perf_evsel_script__new(struct evsel *evsel,
318 							struct perf_data *data)
319 {
320 	struct evsel_script *es = zalloc(sizeof(*es));
321 
322 	if (es != NULL) {
323 		if (asprintf(&es->filename, "%s.%s.dump", data->file.path, evsel__name(evsel)) < 0)
324 			goto out_free;
325 		es->fp = fopen(es->filename, "w");
326 		if (es->fp == NULL)
327 			goto out_free_filename;
328 	}
329 
330 	return es;
331 out_free_filename:
332 	zfree(&es->filename);
333 out_free:
334 	free(es);
335 	return NULL;
336 }
337 
338 static void perf_evsel_script__delete(struct evsel_script *es)
339 {
340 	zfree(&es->filename);
341 	fclose(es->fp);
342 	es->fp = NULL;
343 	free(es);
344 }
345 
346 static int perf_evsel_script__fprintf(struct evsel_script *es, FILE *fp)
347 {
348 	struct stat st;
349 
350 	fstat(fileno(es->fp), &st);
351 	return fprintf(fp, "[ perf script: Wrote %.3f MB %s (%" PRIu64 " samples) ]\n",
352 		       st.st_size / 1024.0 / 1024.0, es->filename, es->samples);
353 }
354 
355 static inline int output_type(unsigned int type)
356 {
357 	switch (type) {
358 	case PERF_TYPE_SYNTH:
359 		return OUTPUT_TYPE_SYNTH;
360 	default:
361 		if (type < PERF_TYPE_MAX)
362 			return type;
363 	}
364 
365 	return OUTPUT_TYPE_OTHER;
366 }
367 
368 static inline unsigned int attr_type(unsigned int type)
369 {
370 	switch (type) {
371 	case OUTPUT_TYPE_SYNTH:
372 		return PERF_TYPE_SYNTH;
373 	default:
374 		return type;
375 	}
376 }
377 
378 static bool output_set_by_user(void)
379 {
380 	int j;
381 	for (j = 0; j < OUTPUT_TYPE_MAX; ++j) {
382 		if (output[j].user_set)
383 			return true;
384 	}
385 	return false;
386 }
387 
388 static const char *output_field2str(enum perf_output_field field)
389 {
390 	int i, imax = ARRAY_SIZE(all_output_options);
391 	const char *str = "";
392 
393 	for (i = 0; i < imax; ++i) {
394 		if (all_output_options[i].field == field) {
395 			str = all_output_options[i].str;
396 			break;
397 		}
398 	}
399 	return str;
400 }
401 
402 #define PRINT_FIELD(x)  (output[output_type(attr->type)].fields & PERF_OUTPUT_##x)
403 
404 static int evsel__do_check_stype(struct evsel *evsel, u64 sample_type, const char *sample_msg,
405 				 enum perf_output_field field, bool allow_user_set)
406 {
407 	struct perf_event_attr *attr = &evsel->core.attr;
408 	int type = output_type(attr->type);
409 	const char *evname;
410 
411 	if (attr->sample_type & sample_type)
412 		return 0;
413 
414 	if (output[type].user_set_fields & field) {
415 		if (allow_user_set)
416 			return 0;
417 		evname = evsel__name(evsel);
418 		pr_err("Samples for '%s' event do not have %s attribute set. "
419 		       "Cannot print '%s' field.\n",
420 		       evname, sample_msg, output_field2str(field));
421 		return -1;
422 	}
423 
424 	/* user did not ask for it explicitly so remove from the default list */
425 	output[type].fields &= ~field;
426 	evname = evsel__name(evsel);
427 	pr_debug("Samples for '%s' event do not have %s attribute set. "
428 		 "Skipping '%s' field.\n",
429 		 evname, sample_msg, output_field2str(field));
430 
431 	return 0;
432 }
433 
434 static int evsel__check_stype(struct evsel *evsel, u64 sample_type, const char *sample_msg,
435 			      enum perf_output_field field)
436 {
437 	return evsel__do_check_stype(evsel, sample_type, sample_msg, field, false);
438 }
439 
440 static int evsel__check_attr(struct evsel *evsel, struct perf_session *session)
441 {
442 	struct perf_event_attr *attr = &evsel->core.attr;
443 	bool allow_user_set;
444 
445 	if (perf_header__has_feat(&session->header, HEADER_STAT))
446 		return 0;
447 
448 	allow_user_set = perf_header__has_feat(&session->header,
449 					       HEADER_AUXTRACE);
450 
451 	if (PRINT_FIELD(TRACE) &&
452 	    !perf_session__has_traces(session, "record -R"))
453 		return -EINVAL;
454 
455 	if (PRINT_FIELD(IP)) {
456 		if (evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", PERF_OUTPUT_IP))
457 			return -EINVAL;
458 	}
459 
460 	if (PRINT_FIELD(ADDR) &&
461 	    evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", PERF_OUTPUT_ADDR, allow_user_set))
462 		return -EINVAL;
463 
464 	if (PRINT_FIELD(DATA_SRC) &&
465 	    evsel__check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC", PERF_OUTPUT_DATA_SRC))
466 		return -EINVAL;
467 
468 	if (PRINT_FIELD(WEIGHT) &&
469 	    evsel__check_stype(evsel, PERF_SAMPLE_WEIGHT, "WEIGHT", PERF_OUTPUT_WEIGHT))
470 		return -EINVAL;
471 
472 	if (PRINT_FIELD(SYM) &&
473 	    !(evsel->core.attr.sample_type & (PERF_SAMPLE_IP|PERF_SAMPLE_ADDR))) {
474 		pr_err("Display of symbols requested but neither sample IP nor "
475 			   "sample address\navailable. Hence, no addresses to convert "
476 		       "to symbols.\n");
477 		return -EINVAL;
478 	}
479 	if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
480 		pr_err("Display of offsets requested but symbol is not"
481 		       "selected.\n");
482 		return -EINVAL;
483 	}
484 	if (PRINT_FIELD(DSO) &&
485 	    !(evsel->core.attr.sample_type & (PERF_SAMPLE_IP|PERF_SAMPLE_ADDR))) {
486 		pr_err("Display of DSO requested but no address to convert.\n");
487 		return -EINVAL;
488 	}
489 	if ((PRINT_FIELD(SRCLINE) || PRINT_FIELD(SRCCODE)) && !PRINT_FIELD(IP)) {
490 		pr_err("Display of source line number requested but sample IP is not\n"
491 		       "selected. Hence, no address to lookup the source line number.\n");
492 		return -EINVAL;
493 	}
494 	if (PRINT_FIELD(BRSTACKINSN) && !allow_user_set &&
495 	    !(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY)) {
496 		pr_err("Display of branch stack assembler requested, but non all-branch filter set\n"
497 		       "Hint: run 'perf record -b ...'\n");
498 		return -EINVAL;
499 	}
500 	if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
501 	    evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", PERF_OUTPUT_TID|PERF_OUTPUT_PID))
502 		return -EINVAL;
503 
504 	if (PRINT_FIELD(TIME) &&
505 	    evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", PERF_OUTPUT_TIME))
506 		return -EINVAL;
507 
508 	if (PRINT_FIELD(CPU) &&
509 	    evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU", PERF_OUTPUT_CPU, allow_user_set))
510 		return -EINVAL;
511 
512 	if (PRINT_FIELD(IREGS) &&
513 	    evsel__do_check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS", PERF_OUTPUT_IREGS, allow_user_set))
514 		return -EINVAL;
515 
516 	if (PRINT_FIELD(UREGS) &&
517 	    evsel__check_stype(evsel, PERF_SAMPLE_REGS_USER, "UREGS", PERF_OUTPUT_UREGS))
518 		return -EINVAL;
519 
520 	if (PRINT_FIELD(PHYS_ADDR) &&
521 	    evsel__check_stype(evsel, PERF_SAMPLE_PHYS_ADDR, "PHYS_ADDR", PERF_OUTPUT_PHYS_ADDR))
522 		return -EINVAL;
523 
524 	if (PRINT_FIELD(DATA_PAGE_SIZE) &&
525 	    evsel__check_stype(evsel, PERF_SAMPLE_DATA_PAGE_SIZE, "DATA_PAGE_SIZE", PERF_OUTPUT_DATA_PAGE_SIZE))
526 		return -EINVAL;
527 
528 	if (PRINT_FIELD(CODE_PAGE_SIZE) &&
529 	    evsel__check_stype(evsel, PERF_SAMPLE_CODE_PAGE_SIZE, "CODE_PAGE_SIZE", PERF_OUTPUT_CODE_PAGE_SIZE))
530 		return -EINVAL;
531 
532 	return 0;
533 }
534 
535 static void set_print_ip_opts(struct perf_event_attr *attr)
536 {
537 	unsigned int type = output_type(attr->type);
538 
539 	output[type].print_ip_opts = 0;
540 	if (PRINT_FIELD(IP))
541 		output[type].print_ip_opts |= EVSEL__PRINT_IP;
542 
543 	if (PRINT_FIELD(SYM))
544 		output[type].print_ip_opts |= EVSEL__PRINT_SYM;
545 
546 	if (PRINT_FIELD(DSO))
547 		output[type].print_ip_opts |= EVSEL__PRINT_DSO;
548 
549 	if (PRINT_FIELD(SYMOFFSET))
550 		output[type].print_ip_opts |= EVSEL__PRINT_SYMOFFSET;
551 
552 	if (PRINT_FIELD(SRCLINE))
553 		output[type].print_ip_opts |= EVSEL__PRINT_SRCLINE;
554 }
555 
556 /*
557  * verify all user requested events exist and the samples
558  * have the expected data
559  */
560 static int perf_session__check_output_opt(struct perf_session *session)
561 {
562 	bool tod = false;
563 	unsigned int j;
564 	struct evsel *evsel;
565 
566 	for (j = 0; j < OUTPUT_TYPE_MAX; ++j) {
567 		evsel = perf_session__find_first_evtype(session, attr_type(j));
568 
569 		/*
570 		 * even if fields is set to 0 (ie., show nothing) event must
571 		 * exist if user explicitly includes it on the command line
572 		 */
573 		if (!evsel && output[j].user_set && !output[j].wildcard_set &&
574 		    j != OUTPUT_TYPE_SYNTH) {
575 			pr_err("%s events do not exist. "
576 			       "Remove corresponding -F option to proceed.\n",
577 			       event_type(j));
578 			return -1;
579 		}
580 
581 		if (evsel && output[j].fields &&
582 			evsel__check_attr(evsel, session))
583 			return -1;
584 
585 		if (evsel == NULL)
586 			continue;
587 
588 		set_print_ip_opts(&evsel->core.attr);
589 		tod |= output[j].fields & PERF_OUTPUT_TOD;
590 	}
591 
592 	if (!no_callchain) {
593 		bool use_callchain = false;
594 		bool not_pipe = false;
595 
596 		evlist__for_each_entry(session->evlist, evsel) {
597 			not_pipe = true;
598 			if (evsel__has_callchain(evsel)) {
599 				use_callchain = true;
600 				break;
601 			}
602 		}
603 		if (not_pipe && !use_callchain)
604 			symbol_conf.use_callchain = false;
605 	}
606 
607 	/*
608 	 * set default for tracepoints to print symbols only
609 	 * if callchains are present
610 	 */
611 	if (symbol_conf.use_callchain &&
612 	    !output[PERF_TYPE_TRACEPOINT].user_set) {
613 		j = PERF_TYPE_TRACEPOINT;
614 
615 		evlist__for_each_entry(session->evlist, evsel) {
616 			if (evsel->core.attr.type != j)
617 				continue;
618 
619 			if (evsel__has_callchain(evsel)) {
620 				output[j].fields |= PERF_OUTPUT_IP;
621 				output[j].fields |= PERF_OUTPUT_SYM;
622 				output[j].fields |= PERF_OUTPUT_SYMOFFSET;
623 				output[j].fields |= PERF_OUTPUT_DSO;
624 				set_print_ip_opts(&evsel->core.attr);
625 				goto out;
626 			}
627 		}
628 	}
629 
630 	if (tod && !session->header.env.clock.enabled) {
631 		pr_err("Can't provide 'tod' time, missing clock data. "
632 		       "Please record with -k/--clockid option.\n");
633 		return -1;
634 	}
635 out:
636 	return 0;
637 }
638 
639 static int perf_sample__fprintf_regs(struct regs_dump *regs, uint64_t mask,
640 				     FILE *fp)
641 {
642 	unsigned i = 0, r;
643 	int printed = 0;
644 
645 	if (!regs || !regs->regs)
646 		return 0;
647 
648 	printed += fprintf(fp, " ABI:%" PRIu64 " ", regs->abi);
649 
650 	for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
651 		u64 val = regs->regs[i++];
652 		printed += fprintf(fp, "%5s:0x%"PRIx64" ", perf_reg_name(r), val);
653 	}
654 
655 	return printed;
656 }
657 
658 #define DEFAULT_TOD_FMT "%F %H:%M:%S"
659 
660 static char*
661 tod_scnprintf(struct perf_script *script, char *buf, int buflen,
662 	     u64 timestamp)
663 {
664 	u64 tod_ns, clockid_ns;
665 	struct perf_env *env;
666 	unsigned long nsec;
667 	struct tm ltime;
668 	char date[64];
669 	time_t sec;
670 
671 	buf[0] = '\0';
672 	if (buflen < 64 || !script)
673 		return buf;
674 
675 	env = &script->session->header.env;
676 	if (!env->clock.enabled) {
677 		scnprintf(buf, buflen, "disabled");
678 		return buf;
679 	}
680 
681 	clockid_ns = env->clock.clockid_ns;
682 	tod_ns     = env->clock.tod_ns;
683 
684 	if (timestamp > clockid_ns)
685 		tod_ns += timestamp - clockid_ns;
686 	else
687 		tod_ns -= clockid_ns - timestamp;
688 
689 	sec  = (time_t) (tod_ns / NSEC_PER_SEC);
690 	nsec = tod_ns - sec * NSEC_PER_SEC;
691 
692 	if (localtime_r(&sec, &ltime) == NULL) {
693 		scnprintf(buf, buflen, "failed");
694 	} else {
695 		strftime(date, sizeof(date), DEFAULT_TOD_FMT, &ltime);
696 
697 		if (symbol_conf.nanosecs) {
698 			snprintf(buf, buflen, "%s.%09lu", date, nsec);
699 		} else {
700 			snprintf(buf, buflen, "%s.%06lu",
701 				 date, nsec / NSEC_PER_USEC);
702 		}
703 	}
704 
705 	return buf;
706 }
707 
708 static int perf_sample__fprintf_iregs(struct perf_sample *sample,
709 				      struct perf_event_attr *attr, FILE *fp)
710 {
711 	return perf_sample__fprintf_regs(&sample->intr_regs,
712 					 attr->sample_regs_intr, fp);
713 }
714 
715 static int perf_sample__fprintf_uregs(struct perf_sample *sample,
716 				      struct perf_event_attr *attr, FILE *fp)
717 {
718 	return perf_sample__fprintf_regs(&sample->user_regs,
719 					 attr->sample_regs_user, fp);
720 }
721 
722 static int perf_sample__fprintf_start(struct perf_script *script,
723 				      struct perf_sample *sample,
724 				      struct thread *thread,
725 				      struct evsel *evsel,
726 				      u32 type, FILE *fp)
727 {
728 	struct perf_event_attr *attr = &evsel->core.attr;
729 	unsigned long secs;
730 	unsigned long long nsecs;
731 	int printed = 0;
732 	char tstr[128];
733 
734 	if (PRINT_FIELD(COMM)) {
735 		const char *comm = thread ? thread__comm_str(thread) : ":-1";
736 
737 		if (latency_format)
738 			printed += fprintf(fp, "%8.8s ", comm);
739 		else if (PRINT_FIELD(IP) && evsel__has_callchain(evsel) && symbol_conf.use_callchain)
740 			printed += fprintf(fp, "%s ", comm);
741 		else
742 			printed += fprintf(fp, "%16s ", comm);
743 	}
744 
745 	if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
746 		printed += fprintf(fp, "%5d/%-5d ", sample->pid, sample->tid);
747 	else if (PRINT_FIELD(PID))
748 		printed += fprintf(fp, "%5d ", sample->pid);
749 	else if (PRINT_FIELD(TID))
750 		printed += fprintf(fp, "%5d ", sample->tid);
751 
752 	if (PRINT_FIELD(CPU)) {
753 		if (latency_format)
754 			printed += fprintf(fp, "%3d ", sample->cpu);
755 		else
756 			printed += fprintf(fp, "[%03d] ", sample->cpu);
757 	}
758 
759 	if (PRINT_FIELD(MISC)) {
760 		int ret = 0;
761 
762 		#define has(m) \
763 			(sample->misc & PERF_RECORD_MISC_##m) == PERF_RECORD_MISC_##m
764 
765 		if (has(KERNEL))
766 			ret += fprintf(fp, "K");
767 		if (has(USER))
768 			ret += fprintf(fp, "U");
769 		if (has(HYPERVISOR))
770 			ret += fprintf(fp, "H");
771 		if (has(GUEST_KERNEL))
772 			ret += fprintf(fp, "G");
773 		if (has(GUEST_USER))
774 			ret += fprintf(fp, "g");
775 
776 		switch (type) {
777 		case PERF_RECORD_MMAP:
778 		case PERF_RECORD_MMAP2:
779 			if (has(MMAP_DATA))
780 				ret += fprintf(fp, "M");
781 			break;
782 		case PERF_RECORD_COMM:
783 			if (has(COMM_EXEC))
784 				ret += fprintf(fp, "E");
785 			break;
786 		case PERF_RECORD_SWITCH:
787 		case PERF_RECORD_SWITCH_CPU_WIDE:
788 			if (has(SWITCH_OUT)) {
789 				ret += fprintf(fp, "S");
790 				if (sample->misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT)
791 					ret += fprintf(fp, "p");
792 			}
793 		default:
794 			break;
795 		}
796 
797 		#undef has
798 
799 		ret += fprintf(fp, "%*s", 6 - ret, " ");
800 		printed += ret;
801 	}
802 
803 	if (PRINT_FIELD(TOD)) {
804 		tod_scnprintf(script, tstr, sizeof(tstr), sample->time);
805 		printed += fprintf(fp, "%s ", tstr);
806 	}
807 
808 	if (PRINT_FIELD(TIME)) {
809 		u64 t = sample->time;
810 		if (reltime) {
811 			if (!initial_time)
812 				initial_time = sample->time;
813 			t = sample->time - initial_time;
814 		} else if (deltatime) {
815 			if (previous_time)
816 				t = sample->time - previous_time;
817 			else {
818 				t = 0;
819 			}
820 			previous_time = sample->time;
821 		}
822 		nsecs = t;
823 		secs = nsecs / NSEC_PER_SEC;
824 		nsecs -= secs * NSEC_PER_SEC;
825 
826 		if (symbol_conf.nanosecs)
827 			printed += fprintf(fp, "%5lu.%09llu: ", secs, nsecs);
828 		else {
829 			char sample_time[32];
830 			timestamp__scnprintf_usec(t, sample_time, sizeof(sample_time));
831 			printed += fprintf(fp, "%12s: ", sample_time);
832 		}
833 	}
834 
835 	return printed;
836 }
837 
838 static inline char
839 mispred_str(struct branch_entry *br)
840 {
841 	if (!(br->flags.mispred  || br->flags.predicted))
842 		return '-';
843 
844 	return br->flags.predicted ? 'P' : 'M';
845 }
846 
847 static int perf_sample__fprintf_brstack(struct perf_sample *sample,
848 					struct thread *thread,
849 					struct perf_event_attr *attr, FILE *fp)
850 {
851 	struct branch_stack *br = sample->branch_stack;
852 	struct branch_entry *entries = perf_sample__branch_entries(sample);
853 	struct addr_location alf, alt;
854 	u64 i, from, to;
855 	int printed = 0;
856 
857 	if (!(br && br->nr))
858 		return 0;
859 
860 	for (i = 0; i < br->nr; i++) {
861 		from = entries[i].from;
862 		to   = entries[i].to;
863 
864 		if (PRINT_FIELD(DSO)) {
865 			memset(&alf, 0, sizeof(alf));
866 			memset(&alt, 0, sizeof(alt));
867 			thread__find_map_fb(thread, sample->cpumode, from, &alf);
868 			thread__find_map_fb(thread, sample->cpumode, to, &alt);
869 		}
870 
871 		printed += fprintf(fp, " 0x%"PRIx64, from);
872 		if (PRINT_FIELD(DSO)) {
873 			printed += fprintf(fp, "(");
874 			printed += map__fprintf_dsoname(alf.map, fp);
875 			printed += fprintf(fp, ")");
876 		}
877 
878 		printed += fprintf(fp, "/0x%"PRIx64, to);
879 		if (PRINT_FIELD(DSO)) {
880 			printed += fprintf(fp, "(");
881 			printed += map__fprintf_dsoname(alt.map, fp);
882 			printed += fprintf(fp, ")");
883 		}
884 
885 		printed += fprintf(fp, "/%c/%c/%c/%d ",
886 			mispred_str(entries + i),
887 			entries[i].flags.in_tx ? 'X' : '-',
888 			entries[i].flags.abort ? 'A' : '-',
889 			entries[i].flags.cycles);
890 	}
891 
892 	return printed;
893 }
894 
895 static int perf_sample__fprintf_brstacksym(struct perf_sample *sample,
896 					   struct thread *thread,
897 					   struct perf_event_attr *attr, FILE *fp)
898 {
899 	struct branch_stack *br = sample->branch_stack;
900 	struct branch_entry *entries = perf_sample__branch_entries(sample);
901 	struct addr_location alf, alt;
902 	u64 i, from, to;
903 	int printed = 0;
904 
905 	if (!(br && br->nr))
906 		return 0;
907 
908 	for (i = 0; i < br->nr; i++) {
909 
910 		memset(&alf, 0, sizeof(alf));
911 		memset(&alt, 0, sizeof(alt));
912 		from = entries[i].from;
913 		to   = entries[i].to;
914 
915 		thread__find_symbol_fb(thread, sample->cpumode, from, &alf);
916 		thread__find_symbol_fb(thread, sample->cpumode, to, &alt);
917 
918 		printed += symbol__fprintf_symname_offs(alf.sym, &alf, fp);
919 		if (PRINT_FIELD(DSO)) {
920 			printed += fprintf(fp, "(");
921 			printed += map__fprintf_dsoname(alf.map, fp);
922 			printed += fprintf(fp, ")");
923 		}
924 		printed += fprintf(fp, "%c", '/');
925 		printed += symbol__fprintf_symname_offs(alt.sym, &alt, fp);
926 		if (PRINT_FIELD(DSO)) {
927 			printed += fprintf(fp, "(");
928 			printed += map__fprintf_dsoname(alt.map, fp);
929 			printed += fprintf(fp, ")");
930 		}
931 		printed += fprintf(fp, "/%c/%c/%c/%d ",
932 			mispred_str(entries + i),
933 			entries[i].flags.in_tx ? 'X' : '-',
934 			entries[i].flags.abort ? 'A' : '-',
935 			entries[i].flags.cycles);
936 	}
937 
938 	return printed;
939 }
940 
941 static int perf_sample__fprintf_brstackoff(struct perf_sample *sample,
942 					   struct thread *thread,
943 					   struct perf_event_attr *attr, FILE *fp)
944 {
945 	struct branch_stack *br = sample->branch_stack;
946 	struct branch_entry *entries = perf_sample__branch_entries(sample);
947 	struct addr_location alf, alt;
948 	u64 i, from, to;
949 	int printed = 0;
950 
951 	if (!(br && br->nr))
952 		return 0;
953 
954 	for (i = 0; i < br->nr; i++) {
955 
956 		memset(&alf, 0, sizeof(alf));
957 		memset(&alt, 0, sizeof(alt));
958 		from = entries[i].from;
959 		to   = entries[i].to;
960 
961 		if (thread__find_map_fb(thread, sample->cpumode, from, &alf) &&
962 		    !alf.map->dso->adjust_symbols)
963 			from = map__map_ip(alf.map, from);
964 
965 		if (thread__find_map_fb(thread, sample->cpumode, to, &alt) &&
966 		    !alt.map->dso->adjust_symbols)
967 			to = map__map_ip(alt.map, to);
968 
969 		printed += fprintf(fp, " 0x%"PRIx64, from);
970 		if (PRINT_FIELD(DSO)) {
971 			printed += fprintf(fp, "(");
972 			printed += map__fprintf_dsoname(alf.map, fp);
973 			printed += fprintf(fp, ")");
974 		}
975 		printed += fprintf(fp, "/0x%"PRIx64, to);
976 		if (PRINT_FIELD(DSO)) {
977 			printed += fprintf(fp, "(");
978 			printed += map__fprintf_dsoname(alt.map, fp);
979 			printed += fprintf(fp, ")");
980 		}
981 		printed += fprintf(fp, "/%c/%c/%c/%d ",
982 			mispred_str(entries + i),
983 			entries[i].flags.in_tx ? 'X' : '-',
984 			entries[i].flags.abort ? 'A' : '-',
985 			entries[i].flags.cycles);
986 	}
987 
988 	return printed;
989 }
990 #define MAXBB 16384UL
991 
992 static int grab_bb(u8 *buffer, u64 start, u64 end,
993 		    struct machine *machine, struct thread *thread,
994 		    bool *is64bit, u8 *cpumode, bool last)
995 {
996 	long offset, len;
997 	struct addr_location al;
998 	bool kernel;
999 
1000 	if (!start || !end)
1001 		return 0;
1002 
1003 	kernel = machine__kernel_ip(machine, start);
1004 	if (kernel)
1005 		*cpumode = PERF_RECORD_MISC_KERNEL;
1006 	else
1007 		*cpumode = PERF_RECORD_MISC_USER;
1008 
1009 	/*
1010 	 * Block overlaps between kernel and user.
1011 	 * This can happen due to ring filtering
1012 	 * On Intel CPUs the entry into the kernel is filtered,
1013 	 * but the exit is not. Let the caller patch it up.
1014 	 */
1015 	if (kernel != machine__kernel_ip(machine, end)) {
1016 		pr_debug("\tblock %" PRIx64 "-%" PRIx64 " transfers between kernel and user\n", start, end);
1017 		return -ENXIO;
1018 	}
1019 
1020 	memset(&al, 0, sizeof(al));
1021 	if (end - start > MAXBB - MAXINSN) {
1022 		if (last)
1023 			pr_debug("\tbrstack does not reach to final jump (%" PRIx64 "-%" PRIx64 ")\n", start, end);
1024 		else
1025 			pr_debug("\tblock %" PRIx64 "-%" PRIx64 " (%" PRIu64 ") too long to dump\n", start, end, end - start);
1026 		return 0;
1027 	}
1028 
1029 	if (!thread__find_map(thread, *cpumode, start, &al) || !al.map->dso) {
1030 		pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
1031 		return 0;
1032 	}
1033 	if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR) {
1034 		pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
1035 		return 0;
1036 	}
1037 
1038 	/* Load maps to ensure dso->is_64_bit has been updated */
1039 	map__load(al.map);
1040 
1041 	offset = al.map->map_ip(al.map, start);
1042 	len = dso__data_read_offset(al.map->dso, machine, offset, (u8 *)buffer,
1043 				    end - start + MAXINSN);
1044 
1045 	*is64bit = al.map->dso->is_64_bit;
1046 	if (len <= 0)
1047 		pr_debug("\tcannot fetch code for block at %" PRIx64 "-%" PRIx64 "\n",
1048 			start, end);
1049 	return len;
1050 }
1051 
1052 static int map__fprintf_srccode(struct map *map, u64 addr, FILE *fp, struct srccode_state *state)
1053 {
1054 	char *srcfile;
1055 	int ret = 0;
1056 	unsigned line;
1057 	int len;
1058 	char *srccode;
1059 
1060 	if (!map || !map->dso)
1061 		return 0;
1062 	srcfile = get_srcline_split(map->dso,
1063 				    map__rip_2objdump(map, addr),
1064 				    &line);
1065 	if (!srcfile)
1066 		return 0;
1067 
1068 	/* Avoid redundant printing */
1069 	if (state &&
1070 	    state->srcfile &&
1071 	    !strcmp(state->srcfile, srcfile) &&
1072 	    state->line == line) {
1073 		free(srcfile);
1074 		return 0;
1075 	}
1076 
1077 	srccode = find_sourceline(srcfile, line, &len);
1078 	if (!srccode)
1079 		goto out_free_line;
1080 
1081 	ret = fprintf(fp, "|%-8d %.*s", line, len, srccode);
1082 
1083 	if (state) {
1084 		state->srcfile = srcfile;
1085 		state->line = line;
1086 	}
1087 	return ret;
1088 
1089 out_free_line:
1090 	free(srcfile);
1091 	return ret;
1092 }
1093 
1094 static int print_srccode(struct thread *thread, u8 cpumode, uint64_t addr)
1095 {
1096 	struct addr_location al;
1097 	int ret = 0;
1098 
1099 	memset(&al, 0, sizeof(al));
1100 	thread__find_map(thread, cpumode, addr, &al);
1101 	if (!al.map)
1102 		return 0;
1103 	ret = map__fprintf_srccode(al.map, al.addr, stdout,
1104 		    &thread->srccode_state);
1105 	if (ret)
1106 		ret += printf("\n");
1107 	return ret;
1108 }
1109 
1110 static int ip__fprintf_jump(uint64_t ip, struct branch_entry *en,
1111 			    struct perf_insn *x, u8 *inbuf, int len,
1112 			    int insn, FILE *fp, int *total_cycles)
1113 {
1114 	int printed = fprintf(fp, "\t%016" PRIx64 "\t%-30s\t#%s%s%s%s", ip,
1115 			      dump_insn(x, ip, inbuf, len, NULL),
1116 			      en->flags.predicted ? " PRED" : "",
1117 			      en->flags.mispred ? " MISPRED" : "",
1118 			      en->flags.in_tx ? " INTX" : "",
1119 			      en->flags.abort ? " ABORT" : "");
1120 	if (en->flags.cycles) {
1121 		*total_cycles += en->flags.cycles;
1122 		printed += fprintf(fp, " %d cycles [%d]", en->flags.cycles, *total_cycles);
1123 		if (insn)
1124 			printed += fprintf(fp, " %.2f IPC", (float)insn / en->flags.cycles);
1125 	}
1126 	return printed + fprintf(fp, "\n");
1127 }
1128 
1129 static int ip__fprintf_sym(uint64_t addr, struct thread *thread,
1130 			   u8 cpumode, int cpu, struct symbol **lastsym,
1131 			   struct perf_event_attr *attr, FILE *fp)
1132 {
1133 	struct addr_location al;
1134 	int off, printed = 0;
1135 
1136 	memset(&al, 0, sizeof(al));
1137 
1138 	thread__find_map(thread, cpumode, addr, &al);
1139 
1140 	if ((*lastsym) && al.addr >= (*lastsym)->start && al.addr < (*lastsym)->end)
1141 		return 0;
1142 
1143 	al.cpu = cpu;
1144 	al.sym = NULL;
1145 	if (al.map)
1146 		al.sym = map__find_symbol(al.map, al.addr);
1147 
1148 	if (!al.sym)
1149 		return 0;
1150 
1151 	if (al.addr < al.sym->end)
1152 		off = al.addr - al.sym->start;
1153 	else
1154 		off = al.addr - al.map->start - al.sym->start;
1155 	printed += fprintf(fp, "\t%s", al.sym->name);
1156 	if (off)
1157 		printed += fprintf(fp, "%+d", off);
1158 	printed += fprintf(fp, ":");
1159 	if (PRINT_FIELD(SRCLINE))
1160 		printed += map__fprintf_srcline(al.map, al.addr, "\t", fp);
1161 	printed += fprintf(fp, "\n");
1162 	*lastsym = al.sym;
1163 
1164 	return printed;
1165 }
1166 
1167 static int perf_sample__fprintf_brstackinsn(struct perf_sample *sample,
1168 					    struct thread *thread,
1169 					    struct perf_event_attr *attr,
1170 					    struct machine *machine, FILE *fp)
1171 {
1172 	struct branch_stack *br = sample->branch_stack;
1173 	struct branch_entry *entries = perf_sample__branch_entries(sample);
1174 	u64 start, end;
1175 	int i, insn, len, nr, ilen, printed = 0;
1176 	struct perf_insn x;
1177 	u8 buffer[MAXBB];
1178 	unsigned off;
1179 	struct symbol *lastsym = NULL;
1180 	int total_cycles = 0;
1181 
1182 	if (!(br && br->nr))
1183 		return 0;
1184 	nr = br->nr;
1185 	if (max_blocks && nr > max_blocks + 1)
1186 		nr = max_blocks + 1;
1187 
1188 	x.thread = thread;
1189 	x.cpu = sample->cpu;
1190 
1191 	printed += fprintf(fp, "%c", '\n');
1192 
1193 	/* Handle first from jump, of which we don't know the entry. */
1194 	len = grab_bb(buffer, entries[nr-1].from,
1195 			entries[nr-1].from,
1196 			machine, thread, &x.is64bit, &x.cpumode, false);
1197 	if (len > 0) {
1198 		printed += ip__fprintf_sym(entries[nr - 1].from, thread,
1199 					   x.cpumode, x.cpu, &lastsym, attr, fp);
1200 		printed += ip__fprintf_jump(entries[nr - 1].from, &entries[nr - 1],
1201 					    &x, buffer, len, 0, fp, &total_cycles);
1202 		if (PRINT_FIELD(SRCCODE))
1203 			printed += print_srccode(thread, x.cpumode, entries[nr - 1].from);
1204 	}
1205 
1206 	/* Print all blocks */
1207 	for (i = nr - 2; i >= 0; i--) {
1208 		if (entries[i].from || entries[i].to)
1209 			pr_debug("%d: %" PRIx64 "-%" PRIx64 "\n", i,
1210 				 entries[i].from,
1211 				 entries[i].to);
1212 		start = entries[i + 1].to;
1213 		end   = entries[i].from;
1214 
1215 		len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, false);
1216 		/* Patch up missing kernel transfers due to ring filters */
1217 		if (len == -ENXIO && i > 0) {
1218 			end = entries[--i].from;
1219 			pr_debug("\tpatching up to %" PRIx64 "-%" PRIx64 "\n", start, end);
1220 			len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, false);
1221 		}
1222 		if (len <= 0)
1223 			continue;
1224 
1225 		insn = 0;
1226 		for (off = 0; off < (unsigned)len; off += ilen) {
1227 			uint64_t ip = start + off;
1228 
1229 			printed += ip__fprintf_sym(ip, thread, x.cpumode, x.cpu, &lastsym, attr, fp);
1230 			if (ip == end) {
1231 				printed += ip__fprintf_jump(ip, &entries[i], &x, buffer + off, len - off, ++insn, fp,
1232 							    &total_cycles);
1233 				if (PRINT_FIELD(SRCCODE))
1234 					printed += print_srccode(thread, x.cpumode, ip);
1235 				break;
1236 			} else {
1237 				ilen = 0;
1238 				printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", ip,
1239 						   dump_insn(&x, ip, buffer + off, len - off, &ilen));
1240 				if (ilen == 0)
1241 					break;
1242 				if (PRINT_FIELD(SRCCODE))
1243 					print_srccode(thread, x.cpumode, ip);
1244 				insn++;
1245 			}
1246 		}
1247 		if (off != end - start)
1248 			printed += fprintf(fp, "\tmismatch of LBR data and executable\n");
1249 	}
1250 
1251 	/*
1252 	 * Hit the branch? In this case we are already done, and the target
1253 	 * has not been executed yet.
1254 	 */
1255 	if (entries[0].from == sample->ip)
1256 		goto out;
1257 	if (entries[0].flags.abort)
1258 		goto out;
1259 
1260 	/*
1261 	 * Print final block upto sample
1262 	 *
1263 	 * Due to pipeline delays the LBRs might be missing a branch
1264 	 * or two, which can result in very large or negative blocks
1265 	 * between final branch and sample. When this happens just
1266 	 * continue walking after the last TO until we hit a branch.
1267 	 */
1268 	start = entries[0].to;
1269 	end = sample->ip;
1270 	if (end < start) {
1271 		/* Missing jump. Scan 128 bytes for the next branch */
1272 		end = start + 128;
1273 	}
1274 	len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, true);
1275 	printed += ip__fprintf_sym(start, thread, x.cpumode, x.cpu, &lastsym, attr, fp);
1276 	if (len <= 0) {
1277 		/* Print at least last IP if basic block did not work */
1278 		len = grab_bb(buffer, sample->ip, sample->ip,
1279 			      machine, thread, &x.is64bit, &x.cpumode, false);
1280 		if (len <= 0)
1281 			goto out;
1282 		printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", sample->ip,
1283 			dump_insn(&x, sample->ip, buffer, len, NULL));
1284 		if (PRINT_FIELD(SRCCODE))
1285 			print_srccode(thread, x.cpumode, sample->ip);
1286 		goto out;
1287 	}
1288 	for (off = 0; off <= end - start; off += ilen) {
1289 		ilen = 0;
1290 		printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", start + off,
1291 				   dump_insn(&x, start + off, buffer + off, len - off, &ilen));
1292 		if (ilen == 0)
1293 			break;
1294 		if (arch_is_branch(buffer + off, len - off, x.is64bit) && start + off != sample->ip) {
1295 			/*
1296 			 * Hit a missing branch. Just stop.
1297 			 */
1298 			printed += fprintf(fp, "\t... not reaching sample ...\n");
1299 			break;
1300 		}
1301 		if (PRINT_FIELD(SRCCODE))
1302 			print_srccode(thread, x.cpumode, start + off);
1303 	}
1304 out:
1305 	return printed;
1306 }
1307 
1308 static int perf_sample__fprintf_addr(struct perf_sample *sample,
1309 				     struct thread *thread,
1310 				     struct perf_event_attr *attr, FILE *fp)
1311 {
1312 	struct addr_location al;
1313 	int printed = fprintf(fp, "%16" PRIx64, sample->addr);
1314 
1315 	if (!sample_addr_correlates_sym(attr))
1316 		goto out;
1317 
1318 	thread__resolve(thread, &al, sample);
1319 
1320 	if (PRINT_FIELD(SYM)) {
1321 		printed += fprintf(fp, " ");
1322 		if (PRINT_FIELD(SYMOFFSET))
1323 			printed += symbol__fprintf_symname_offs(al.sym, &al, fp);
1324 		else
1325 			printed += symbol__fprintf_symname(al.sym, fp);
1326 	}
1327 
1328 	if (PRINT_FIELD(DSO)) {
1329 		printed += fprintf(fp, " (");
1330 		printed += map__fprintf_dsoname(al.map, fp);
1331 		printed += fprintf(fp, ")");
1332 	}
1333 out:
1334 	return printed;
1335 }
1336 
1337 static const char *resolve_branch_sym(struct perf_sample *sample,
1338 				      struct evsel *evsel,
1339 				      struct thread *thread,
1340 				      struct addr_location *al,
1341 				      u64 *ip)
1342 {
1343 	struct addr_location addr_al;
1344 	struct perf_event_attr *attr = &evsel->core.attr;
1345 	const char *name = NULL;
1346 
1347 	if (sample->flags & (PERF_IP_FLAG_CALL | PERF_IP_FLAG_TRACE_BEGIN)) {
1348 		if (sample_addr_correlates_sym(attr)) {
1349 			thread__resolve(thread, &addr_al, sample);
1350 			if (addr_al.sym)
1351 				name = addr_al.sym->name;
1352 			else
1353 				*ip = sample->addr;
1354 		} else {
1355 			*ip = sample->addr;
1356 		}
1357 	} else if (sample->flags & (PERF_IP_FLAG_RETURN | PERF_IP_FLAG_TRACE_END)) {
1358 		if (al->sym)
1359 			name = al->sym->name;
1360 		else
1361 			*ip = sample->ip;
1362 	}
1363 	return name;
1364 }
1365 
1366 static int perf_sample__fprintf_callindent(struct perf_sample *sample,
1367 					   struct evsel *evsel,
1368 					   struct thread *thread,
1369 					   struct addr_location *al, FILE *fp)
1370 {
1371 	struct perf_event_attr *attr = &evsel->core.attr;
1372 	size_t depth = thread_stack__depth(thread, sample->cpu);
1373 	const char *name = NULL;
1374 	static int spacing;
1375 	int len = 0;
1376 	int dlen = 0;
1377 	u64 ip = 0;
1378 
1379 	/*
1380 	 * The 'return' has already been popped off the stack so the depth has
1381 	 * to be adjusted to match the 'call'.
1382 	 */
1383 	if (thread->ts && sample->flags & PERF_IP_FLAG_RETURN)
1384 		depth += 1;
1385 
1386 	name = resolve_branch_sym(sample, evsel, thread, al, &ip);
1387 
1388 	if (PRINT_FIELD(DSO) && !(PRINT_FIELD(IP) || PRINT_FIELD(ADDR))) {
1389 		dlen += fprintf(fp, "(");
1390 		dlen += map__fprintf_dsoname(al->map, fp);
1391 		dlen += fprintf(fp, ")\t");
1392 	}
1393 
1394 	if (name)
1395 		len = fprintf(fp, "%*s%s", (int)depth * 4, "", name);
1396 	else if (ip)
1397 		len = fprintf(fp, "%*s%16" PRIx64, (int)depth * 4, "", ip);
1398 
1399 	if (len < 0)
1400 		return len;
1401 
1402 	/*
1403 	 * Try to keep the output length from changing frequently so that the
1404 	 * output lines up more nicely.
1405 	 */
1406 	if (len > spacing || (len && len < spacing - 52))
1407 		spacing = round_up(len + 4, 32);
1408 
1409 	if (len < spacing)
1410 		len += fprintf(fp, "%*s", spacing - len, "");
1411 
1412 	return len + dlen;
1413 }
1414 
1415 __weak void arch_fetch_insn(struct perf_sample *sample __maybe_unused,
1416 			    struct thread *thread __maybe_unused,
1417 			    struct machine *machine __maybe_unused)
1418 {
1419 }
1420 
1421 static int perf_sample__fprintf_insn(struct perf_sample *sample,
1422 				     struct perf_event_attr *attr,
1423 				     struct thread *thread,
1424 				     struct machine *machine, FILE *fp)
1425 {
1426 	int printed = 0;
1427 
1428 	if (sample->insn_len == 0 && native_arch)
1429 		arch_fetch_insn(sample, thread, machine);
1430 
1431 	if (PRINT_FIELD(INSNLEN))
1432 		printed += fprintf(fp, " ilen: %d", sample->insn_len);
1433 	if (PRINT_FIELD(INSN) && sample->insn_len) {
1434 		int i;
1435 
1436 		printed += fprintf(fp, " insn:");
1437 		for (i = 0; i < sample->insn_len; i++)
1438 			printed += fprintf(fp, " %02x", (unsigned char)sample->insn[i]);
1439 	}
1440 	if (PRINT_FIELD(BRSTACKINSN))
1441 		printed += perf_sample__fprintf_brstackinsn(sample, thread, attr, machine, fp);
1442 
1443 	return printed;
1444 }
1445 
1446 static int perf_sample__fprintf_ipc(struct perf_sample *sample,
1447 				    struct perf_event_attr *attr, FILE *fp)
1448 {
1449 	unsigned int ipc;
1450 
1451 	if (!PRINT_FIELD(IPC) || !sample->cyc_cnt || !sample->insn_cnt)
1452 		return 0;
1453 
1454 	ipc = (sample->insn_cnt * 100) / sample->cyc_cnt;
1455 
1456 	return fprintf(fp, " \t IPC: %u.%02u (%" PRIu64 "/%" PRIu64 ") ",
1457 		       ipc / 100, ipc % 100, sample->insn_cnt, sample->cyc_cnt);
1458 }
1459 
1460 static int perf_sample__fprintf_bts(struct perf_sample *sample,
1461 				    struct evsel *evsel,
1462 				    struct thread *thread,
1463 				    struct addr_location *al,
1464 				    struct machine *machine, FILE *fp)
1465 {
1466 	struct perf_event_attr *attr = &evsel->core.attr;
1467 	unsigned int type = output_type(attr->type);
1468 	bool print_srcline_last = false;
1469 	int printed = 0;
1470 
1471 	if (PRINT_FIELD(CALLINDENT))
1472 		printed += perf_sample__fprintf_callindent(sample, evsel, thread, al, fp);
1473 
1474 	/* print branch_from information */
1475 	if (PRINT_FIELD(IP)) {
1476 		unsigned int print_opts = output[type].print_ip_opts;
1477 		struct callchain_cursor *cursor = NULL;
1478 
1479 		if (symbol_conf.use_callchain && sample->callchain &&
1480 		    thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
1481 					      sample, NULL, NULL, scripting_max_stack) == 0)
1482 			cursor = &callchain_cursor;
1483 
1484 		if (cursor == NULL) {
1485 			printed += fprintf(fp, " ");
1486 			if (print_opts & EVSEL__PRINT_SRCLINE) {
1487 				print_srcline_last = true;
1488 				print_opts &= ~EVSEL__PRINT_SRCLINE;
1489 			}
1490 		} else
1491 			printed += fprintf(fp, "\n");
1492 
1493 		printed += sample__fprintf_sym(sample, al, 0, print_opts, cursor,
1494 					       symbol_conf.bt_stop_list, fp);
1495 	}
1496 
1497 	/* print branch_to information */
1498 	if (PRINT_FIELD(ADDR) ||
1499 	    ((evsel->core.attr.sample_type & PERF_SAMPLE_ADDR) &&
1500 	     !output[type].user_set)) {
1501 		printed += fprintf(fp, " => ");
1502 		printed += perf_sample__fprintf_addr(sample, thread, attr, fp);
1503 	}
1504 
1505 	printed += perf_sample__fprintf_ipc(sample, attr, fp);
1506 
1507 	if (print_srcline_last)
1508 		printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
1509 
1510 	printed += perf_sample__fprintf_insn(sample, attr, thread, machine, fp);
1511 	printed += fprintf(fp, "\n");
1512 	if (PRINT_FIELD(SRCCODE)) {
1513 		int ret = map__fprintf_srccode(al->map, al->addr, stdout,
1514 					 &thread->srccode_state);
1515 		if (ret) {
1516 			printed += ret;
1517 			printed += printf("\n");
1518 		}
1519 	}
1520 	return printed;
1521 }
1522 
1523 static struct {
1524 	u32 flags;
1525 	const char *name;
1526 } sample_flags[] = {
1527 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"},
1528 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"},
1529 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "jcc"},
1530 	{PERF_IP_FLAG_BRANCH, "jmp"},
1531 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT, "int"},
1532 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT, "iret"},
1533 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET, "syscall"},
1534 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET, "sysret"},
1535 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "async"},
1536 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |	PERF_IP_FLAG_INTERRUPT, "hw int"},
1537 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "tx abrt"},
1538 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "tr strt"},
1539 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "tr end"},
1540 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_VMENTRY, "vmentry"},
1541 	{PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_VMEXIT, "vmexit"},
1542 	{0, NULL}
1543 };
1544 
1545 static const char *sample_flags_to_name(u32 flags)
1546 {
1547 	int i;
1548 
1549 	for (i = 0; sample_flags[i].name ; i++) {
1550 		if (sample_flags[i].flags == flags)
1551 			return sample_flags[i].name;
1552 	}
1553 
1554 	return NULL;
1555 }
1556 
1557 static int perf_sample__fprintf_flags(u32 flags, FILE *fp)
1558 {
1559 	const char *chars = PERF_IP_FLAG_CHARS;
1560 	const int n = strlen(PERF_IP_FLAG_CHARS);
1561 	bool in_tx = flags & PERF_IP_FLAG_IN_TX;
1562 	const char *name = NULL;
1563 	char str[33];
1564 	int i, pos = 0;
1565 
1566 	name = sample_flags_to_name(flags & ~PERF_IP_FLAG_IN_TX);
1567 	if (name)
1568 		return fprintf(fp, "  %-15s%4s ", name, in_tx ? "(x)" : "");
1569 
1570 	if (flags & PERF_IP_FLAG_TRACE_BEGIN) {
1571 		name = sample_flags_to_name(flags & ~(PERF_IP_FLAG_IN_TX | PERF_IP_FLAG_TRACE_BEGIN));
1572 		if (name)
1573 			return fprintf(fp, "  tr strt %-7s%4s ", name, in_tx ? "(x)" : "");
1574 	}
1575 
1576 	if (flags & PERF_IP_FLAG_TRACE_END) {
1577 		name = sample_flags_to_name(flags & ~(PERF_IP_FLAG_IN_TX | PERF_IP_FLAG_TRACE_END));
1578 		if (name)
1579 			return fprintf(fp, "  tr end  %-7s%4s ", name, in_tx ? "(x)" : "");
1580 	}
1581 
1582 	for (i = 0; i < n; i++, flags >>= 1) {
1583 		if (flags & 1)
1584 			str[pos++] = chars[i];
1585 	}
1586 	for (; i < 32; i++, flags >>= 1) {
1587 		if (flags & 1)
1588 			str[pos++] = '?';
1589 	}
1590 	str[pos] = 0;
1591 
1592 	return fprintf(fp, "  %-19s ", str);
1593 }
1594 
1595 struct printer_data {
1596 	int line_no;
1597 	bool hit_nul;
1598 	bool is_printable;
1599 };
1600 
1601 static int sample__fprintf_bpf_output(enum binary_printer_ops op,
1602 				      unsigned int val,
1603 				      void *extra, FILE *fp)
1604 {
1605 	unsigned char ch = (unsigned char)val;
1606 	struct printer_data *printer_data = extra;
1607 	int printed = 0;
1608 
1609 	switch (op) {
1610 	case BINARY_PRINT_DATA_BEGIN:
1611 		printed += fprintf(fp, "\n");
1612 		break;
1613 	case BINARY_PRINT_LINE_BEGIN:
1614 		printed += fprintf(fp, "%17s", !printer_data->line_no ? "BPF output:" :
1615 						        "           ");
1616 		break;
1617 	case BINARY_PRINT_ADDR:
1618 		printed += fprintf(fp, " %04x:", val);
1619 		break;
1620 	case BINARY_PRINT_NUM_DATA:
1621 		printed += fprintf(fp, " %02x", val);
1622 		break;
1623 	case BINARY_PRINT_NUM_PAD:
1624 		printed += fprintf(fp, "   ");
1625 		break;
1626 	case BINARY_PRINT_SEP:
1627 		printed += fprintf(fp, "  ");
1628 		break;
1629 	case BINARY_PRINT_CHAR_DATA:
1630 		if (printer_data->hit_nul && ch)
1631 			printer_data->is_printable = false;
1632 
1633 		if (!isprint(ch)) {
1634 			printed += fprintf(fp, "%c", '.');
1635 
1636 			if (!printer_data->is_printable)
1637 				break;
1638 
1639 			if (ch == '\0')
1640 				printer_data->hit_nul = true;
1641 			else
1642 				printer_data->is_printable = false;
1643 		} else {
1644 			printed += fprintf(fp, "%c", ch);
1645 		}
1646 		break;
1647 	case BINARY_PRINT_CHAR_PAD:
1648 		printed += fprintf(fp, " ");
1649 		break;
1650 	case BINARY_PRINT_LINE_END:
1651 		printed += fprintf(fp, "\n");
1652 		printer_data->line_no++;
1653 		break;
1654 	case BINARY_PRINT_DATA_END:
1655 	default:
1656 		break;
1657 	}
1658 
1659 	return printed;
1660 }
1661 
1662 static int perf_sample__fprintf_bpf_output(struct perf_sample *sample, FILE *fp)
1663 {
1664 	unsigned int nr_bytes = sample->raw_size;
1665 	struct printer_data printer_data = {0, false, true};
1666 	int printed = binary__fprintf(sample->raw_data, nr_bytes, 8,
1667 				      sample__fprintf_bpf_output, &printer_data, fp);
1668 
1669 	if (printer_data.is_printable && printer_data.hit_nul)
1670 		printed += fprintf(fp, "%17s \"%s\"\n", "BPF string:", (char *)(sample->raw_data));
1671 
1672 	return printed;
1673 }
1674 
1675 static int perf_sample__fprintf_spacing(int len, int spacing, FILE *fp)
1676 {
1677 	if (len > 0 && len < spacing)
1678 		return fprintf(fp, "%*s", spacing - len, "");
1679 
1680 	return 0;
1681 }
1682 
1683 static int perf_sample__fprintf_pt_spacing(int len, FILE *fp)
1684 {
1685 	return perf_sample__fprintf_spacing(len, 34, fp);
1686 }
1687 
1688 static int perf_sample__fprintf_synth_ptwrite(struct perf_sample *sample, FILE *fp)
1689 {
1690 	struct perf_synth_intel_ptwrite *data = perf_sample__synth_ptr(sample);
1691 	int len;
1692 
1693 	if (perf_sample__bad_synth_size(sample, *data))
1694 		return 0;
1695 
1696 	len = fprintf(fp, " IP: %u payload: %#" PRIx64 " ",
1697 		     data->ip, le64_to_cpu(data->payload));
1698 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1699 }
1700 
1701 static int perf_sample__fprintf_synth_mwait(struct perf_sample *sample, FILE *fp)
1702 {
1703 	struct perf_synth_intel_mwait *data = perf_sample__synth_ptr(sample);
1704 	int len;
1705 
1706 	if (perf_sample__bad_synth_size(sample, *data))
1707 		return 0;
1708 
1709 	len = fprintf(fp, " hints: %#x extensions: %#x ",
1710 		      data->hints, data->extensions);
1711 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1712 }
1713 
1714 static int perf_sample__fprintf_synth_pwre(struct perf_sample *sample, FILE *fp)
1715 {
1716 	struct perf_synth_intel_pwre *data = perf_sample__synth_ptr(sample);
1717 	int len;
1718 
1719 	if (perf_sample__bad_synth_size(sample, *data))
1720 		return 0;
1721 
1722 	len = fprintf(fp, " hw: %u cstate: %u sub-cstate: %u ",
1723 		      data->hw, data->cstate, data->subcstate);
1724 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1725 }
1726 
1727 static int perf_sample__fprintf_synth_exstop(struct perf_sample *sample, FILE *fp)
1728 {
1729 	struct perf_synth_intel_exstop *data = perf_sample__synth_ptr(sample);
1730 	int len;
1731 
1732 	if (perf_sample__bad_synth_size(sample, *data))
1733 		return 0;
1734 
1735 	len = fprintf(fp, " IP: %u ", data->ip);
1736 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1737 }
1738 
1739 static int perf_sample__fprintf_synth_pwrx(struct perf_sample *sample, FILE *fp)
1740 {
1741 	struct perf_synth_intel_pwrx *data = perf_sample__synth_ptr(sample);
1742 	int len;
1743 
1744 	if (perf_sample__bad_synth_size(sample, *data))
1745 		return 0;
1746 
1747 	len = fprintf(fp, " deepest cstate: %u last cstate: %u wake reason: %#x ",
1748 		     data->deepest_cstate, data->last_cstate,
1749 		     data->wake_reason);
1750 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1751 }
1752 
1753 static int perf_sample__fprintf_synth_cbr(struct perf_sample *sample, FILE *fp)
1754 {
1755 	struct perf_synth_intel_cbr *data = perf_sample__synth_ptr(sample);
1756 	unsigned int percent, freq;
1757 	int len;
1758 
1759 	if (perf_sample__bad_synth_size(sample, *data))
1760 		return 0;
1761 
1762 	freq = (le32_to_cpu(data->freq) + 500) / 1000;
1763 	len = fprintf(fp, " cbr: %2u freq: %4u MHz ", data->cbr, freq);
1764 	if (data->max_nonturbo) {
1765 		percent = (5 + (1000 * data->cbr) / data->max_nonturbo) / 10;
1766 		len += fprintf(fp, "(%3u%%) ", percent);
1767 	}
1768 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1769 }
1770 
1771 static int perf_sample__fprintf_synth_psb(struct perf_sample *sample, FILE *fp)
1772 {
1773 	struct perf_synth_intel_psb *data = perf_sample__synth_ptr(sample);
1774 	int len;
1775 
1776 	if (perf_sample__bad_synth_size(sample, *data))
1777 		return 0;
1778 
1779 	len = fprintf(fp, " psb offs: %#" PRIx64, data->offset);
1780 	return len + perf_sample__fprintf_pt_spacing(len, fp);
1781 }
1782 
1783 static int perf_sample__fprintf_synth(struct perf_sample *sample,
1784 				      struct evsel *evsel, FILE *fp)
1785 {
1786 	switch (evsel->core.attr.config) {
1787 	case PERF_SYNTH_INTEL_PTWRITE:
1788 		return perf_sample__fprintf_synth_ptwrite(sample, fp);
1789 	case PERF_SYNTH_INTEL_MWAIT:
1790 		return perf_sample__fprintf_synth_mwait(sample, fp);
1791 	case PERF_SYNTH_INTEL_PWRE:
1792 		return perf_sample__fprintf_synth_pwre(sample, fp);
1793 	case PERF_SYNTH_INTEL_EXSTOP:
1794 		return perf_sample__fprintf_synth_exstop(sample, fp);
1795 	case PERF_SYNTH_INTEL_PWRX:
1796 		return perf_sample__fprintf_synth_pwrx(sample, fp);
1797 	case PERF_SYNTH_INTEL_CBR:
1798 		return perf_sample__fprintf_synth_cbr(sample, fp);
1799 	case PERF_SYNTH_INTEL_PSB:
1800 		return perf_sample__fprintf_synth_psb(sample, fp);
1801 	default:
1802 		break;
1803 	}
1804 
1805 	return 0;
1806 }
1807 
1808 static int evlist__max_name_len(struct evlist *evlist)
1809 {
1810 	struct evsel *evsel;
1811 	int max = 0;
1812 
1813 	evlist__for_each_entry(evlist, evsel) {
1814 		int len = strlen(evsel__name(evsel));
1815 
1816 		max = MAX(len, max);
1817 	}
1818 
1819 	return max;
1820 }
1821 
1822 static int data_src__fprintf(u64 data_src, FILE *fp)
1823 {
1824 	struct mem_info mi = { .data_src.val = data_src };
1825 	char decode[100];
1826 	char out[100];
1827 	static int maxlen;
1828 	int len;
1829 
1830 	perf_script__meminfo_scnprintf(decode, 100, &mi);
1831 
1832 	len = scnprintf(out, 100, "%16" PRIx64 " %s", data_src, decode);
1833 	if (maxlen < len)
1834 		maxlen = len;
1835 
1836 	return fprintf(fp, "%-*s", maxlen, out);
1837 }
1838 
1839 struct metric_ctx {
1840 	struct perf_sample	*sample;
1841 	struct thread		*thread;
1842 	struct evsel	*evsel;
1843 	FILE 			*fp;
1844 };
1845 
1846 static void script_print_metric(struct perf_stat_config *config __maybe_unused,
1847 				void *ctx, const char *color,
1848 			        const char *fmt,
1849 			        const char *unit, double val)
1850 {
1851 	struct metric_ctx *mctx = ctx;
1852 
1853 	if (!fmt)
1854 		return;
1855 	perf_sample__fprintf_start(NULL, mctx->sample, mctx->thread, mctx->evsel,
1856 				   PERF_RECORD_SAMPLE, mctx->fp);
1857 	fputs("\tmetric: ", mctx->fp);
1858 	if (color)
1859 		color_fprintf(mctx->fp, color, fmt, val);
1860 	else
1861 		printf(fmt, val);
1862 	fprintf(mctx->fp, " %s\n", unit);
1863 }
1864 
1865 static void script_new_line(struct perf_stat_config *config __maybe_unused,
1866 			    void *ctx)
1867 {
1868 	struct metric_ctx *mctx = ctx;
1869 
1870 	perf_sample__fprintf_start(NULL, mctx->sample, mctx->thread, mctx->evsel,
1871 				   PERF_RECORD_SAMPLE, mctx->fp);
1872 	fputs("\tmetric: ", mctx->fp);
1873 }
1874 
1875 static void perf_sample__fprint_metric(struct perf_script *script,
1876 				       struct thread *thread,
1877 				       struct evsel *evsel,
1878 				       struct perf_sample *sample,
1879 				       FILE *fp)
1880 {
1881 	struct perf_stat_output_ctx ctx = {
1882 		.print_metric = script_print_metric,
1883 		.new_line = script_new_line,
1884 		.ctx = &(struct metric_ctx) {
1885 				.sample = sample,
1886 				.thread = thread,
1887 				.evsel  = evsel,
1888 				.fp     = fp,
1889 			 },
1890 		.force_header = false,
1891 	};
1892 	struct evsel *ev2;
1893 	u64 val;
1894 
1895 	if (!evsel->stats)
1896 		evlist__alloc_stats(script->session->evlist, false);
1897 	if (evsel_script(evsel->leader)->gnum++ == 0)
1898 		perf_stat__reset_shadow_stats();
1899 	val = sample->period * evsel->scale;
1900 	perf_stat__update_shadow_stats(evsel,
1901 				       val,
1902 				       sample->cpu,
1903 				       &rt_stat);
1904 	evsel_script(evsel)->val = val;
1905 	if (evsel_script(evsel->leader)->gnum == evsel->leader->core.nr_members) {
1906 		for_each_group_member (ev2, evsel->leader) {
1907 			perf_stat__print_shadow_stats(&stat_config, ev2,
1908 						      evsel_script(ev2)->val,
1909 						      sample->cpu,
1910 						      &ctx,
1911 						      NULL,
1912 						      &rt_stat);
1913 		}
1914 		evsel_script(evsel->leader)->gnum = 0;
1915 	}
1916 }
1917 
1918 static bool show_event(struct perf_sample *sample,
1919 		       struct evsel *evsel,
1920 		       struct thread *thread,
1921 		       struct addr_location *al)
1922 {
1923 	int depth = thread_stack__depth(thread, sample->cpu);
1924 
1925 	if (!symbol_conf.graph_function)
1926 		return true;
1927 
1928 	if (thread->filter) {
1929 		if (depth <= thread->filter_entry_depth) {
1930 			thread->filter = false;
1931 			return false;
1932 		}
1933 		return true;
1934 	} else {
1935 		const char *s = symbol_conf.graph_function;
1936 		u64 ip;
1937 		const char *name = resolve_branch_sym(sample, evsel, thread, al,
1938 				&ip);
1939 		unsigned nlen;
1940 
1941 		if (!name)
1942 			return false;
1943 		nlen = strlen(name);
1944 		while (*s) {
1945 			unsigned len = strcspn(s, ",");
1946 			if (nlen == len && !strncmp(name, s, len)) {
1947 				thread->filter = true;
1948 				thread->filter_entry_depth = depth;
1949 				return true;
1950 			}
1951 			s += len;
1952 			if (*s == ',')
1953 				s++;
1954 		}
1955 		return false;
1956 	}
1957 }
1958 
1959 static void process_event(struct perf_script *script,
1960 			  struct perf_sample *sample, struct evsel *evsel,
1961 			  struct addr_location *al,
1962 			  struct machine *machine)
1963 {
1964 	struct thread *thread = al->thread;
1965 	struct perf_event_attr *attr = &evsel->core.attr;
1966 	unsigned int type = output_type(attr->type);
1967 	struct evsel_script *es = evsel->priv;
1968 	FILE *fp = es->fp;
1969 	char str[PAGE_SIZE_NAME_LEN];
1970 
1971 	if (output[type].fields == 0)
1972 		return;
1973 
1974 	if (!show_event(sample, evsel, thread, al))
1975 		return;
1976 
1977 	if (evswitch__discard(&script->evswitch, evsel))
1978 		return;
1979 
1980 	++es->samples;
1981 
1982 	perf_sample__fprintf_start(script, sample, thread, evsel,
1983 				   PERF_RECORD_SAMPLE, fp);
1984 
1985 	if (PRINT_FIELD(PERIOD))
1986 		fprintf(fp, "%10" PRIu64 " ", sample->period);
1987 
1988 	if (PRINT_FIELD(EVNAME)) {
1989 		const char *evname = evsel__name(evsel);
1990 
1991 		if (!script->name_width)
1992 			script->name_width = evlist__max_name_len(script->session->evlist);
1993 
1994 		fprintf(fp, "%*s: ", script->name_width, evname ?: "[unknown]");
1995 	}
1996 
1997 	if (print_flags)
1998 		perf_sample__fprintf_flags(sample->flags, fp);
1999 
2000 	if (is_bts_event(attr)) {
2001 		perf_sample__fprintf_bts(sample, evsel, thread, al, machine, fp);
2002 		return;
2003 	}
2004 
2005 	if (PRINT_FIELD(TRACE) && sample->raw_data) {
2006 		event_format__fprintf(evsel->tp_format, sample->cpu,
2007 				      sample->raw_data, sample->raw_size, fp);
2008 	}
2009 
2010 	if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
2011 		perf_sample__fprintf_synth(sample, evsel, fp);
2012 
2013 	if (PRINT_FIELD(ADDR))
2014 		perf_sample__fprintf_addr(sample, thread, attr, fp);
2015 
2016 	if (PRINT_FIELD(DATA_SRC))
2017 		data_src__fprintf(sample->data_src, fp);
2018 
2019 	if (PRINT_FIELD(WEIGHT))
2020 		fprintf(fp, "%16" PRIu64, sample->weight);
2021 
2022 	if (PRINT_FIELD(IP)) {
2023 		struct callchain_cursor *cursor = NULL;
2024 
2025 		if (script->stitch_lbr)
2026 			al->thread->lbr_stitch_enable = true;
2027 
2028 		if (symbol_conf.use_callchain && sample->callchain &&
2029 		    thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
2030 					      sample, NULL, NULL, scripting_max_stack) == 0)
2031 			cursor = &callchain_cursor;
2032 
2033 		fputc(cursor ? '\n' : ' ', fp);
2034 		sample__fprintf_sym(sample, al, 0, output[type].print_ip_opts, cursor,
2035 				    symbol_conf.bt_stop_list, fp);
2036 	}
2037 
2038 	if (PRINT_FIELD(IREGS))
2039 		perf_sample__fprintf_iregs(sample, attr, fp);
2040 
2041 	if (PRINT_FIELD(UREGS))
2042 		perf_sample__fprintf_uregs(sample, attr, fp);
2043 
2044 	if (PRINT_FIELD(BRSTACK))
2045 		perf_sample__fprintf_brstack(sample, thread, attr, fp);
2046 	else if (PRINT_FIELD(BRSTACKSYM))
2047 		perf_sample__fprintf_brstacksym(sample, thread, attr, fp);
2048 	else if (PRINT_FIELD(BRSTACKOFF))
2049 		perf_sample__fprintf_brstackoff(sample, thread, attr, fp);
2050 
2051 	if (evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
2052 		perf_sample__fprintf_bpf_output(sample, fp);
2053 	perf_sample__fprintf_insn(sample, attr, thread, machine, fp);
2054 
2055 	if (PRINT_FIELD(PHYS_ADDR))
2056 		fprintf(fp, "%16" PRIx64, sample->phys_addr);
2057 
2058 	if (PRINT_FIELD(DATA_PAGE_SIZE))
2059 		fprintf(fp, " %s", get_page_size_name(sample->data_page_size, str));
2060 
2061 	if (PRINT_FIELD(CODE_PAGE_SIZE))
2062 		fprintf(fp, " %s", get_page_size_name(sample->code_page_size, str));
2063 
2064 	perf_sample__fprintf_ipc(sample, attr, fp);
2065 
2066 	fprintf(fp, "\n");
2067 
2068 	if (PRINT_FIELD(SRCCODE)) {
2069 		if (map__fprintf_srccode(al->map, al->addr, stdout,
2070 					 &thread->srccode_state))
2071 			printf("\n");
2072 	}
2073 
2074 	if (PRINT_FIELD(METRIC))
2075 		perf_sample__fprint_metric(script, thread, evsel, sample, fp);
2076 
2077 	if (verbose)
2078 		fflush(fp);
2079 }
2080 
2081 static struct scripting_ops	*scripting_ops;
2082 
2083 static void __process_stat(struct evsel *counter, u64 tstamp)
2084 {
2085 	int nthreads = perf_thread_map__nr(counter->core.threads);
2086 	int ncpus = evsel__nr_cpus(counter);
2087 	int cpu, thread;
2088 	static int header_printed;
2089 
2090 	if (counter->core.system_wide)
2091 		nthreads = 1;
2092 
2093 	if (!header_printed) {
2094 		printf("%3s %8s %15s %15s %15s %15s %s\n",
2095 		       "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
2096 		header_printed = 1;
2097 	}
2098 
2099 	for (thread = 0; thread < nthreads; thread++) {
2100 		for (cpu = 0; cpu < ncpus; cpu++) {
2101 			struct perf_counts_values *counts;
2102 
2103 			counts = perf_counts(counter->counts, cpu, thread);
2104 
2105 			printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
2106 				counter->core.cpus->map[cpu],
2107 				perf_thread_map__pid(counter->core.threads, thread),
2108 				counts->val,
2109 				counts->ena,
2110 				counts->run,
2111 				tstamp,
2112 				evsel__name(counter));
2113 		}
2114 	}
2115 }
2116 
2117 static void process_stat(struct evsel *counter, u64 tstamp)
2118 {
2119 	if (scripting_ops && scripting_ops->process_stat)
2120 		scripting_ops->process_stat(&stat_config, counter, tstamp);
2121 	else
2122 		__process_stat(counter, tstamp);
2123 }
2124 
2125 static void process_stat_interval(u64 tstamp)
2126 {
2127 	if (scripting_ops && scripting_ops->process_stat_interval)
2128 		scripting_ops->process_stat_interval(tstamp);
2129 }
2130 
2131 static void setup_scripting(void)
2132 {
2133 	setup_perl_scripting();
2134 	setup_python_scripting();
2135 }
2136 
2137 static int flush_scripting(void)
2138 {
2139 	return scripting_ops ? scripting_ops->flush_script() : 0;
2140 }
2141 
2142 static int cleanup_scripting(void)
2143 {
2144 	pr_debug("\nperf script stopped\n");
2145 
2146 	return scripting_ops ? scripting_ops->stop_script() : 0;
2147 }
2148 
2149 static bool filter_cpu(struct perf_sample *sample)
2150 {
2151 	if (cpu_list && sample->cpu != (u32)-1)
2152 		return !test_bit(sample->cpu, cpu_bitmap);
2153 	return false;
2154 }
2155 
2156 static int process_sample_event(struct perf_tool *tool,
2157 				union perf_event *event,
2158 				struct perf_sample *sample,
2159 				struct evsel *evsel,
2160 				struct machine *machine)
2161 {
2162 	struct perf_script *scr = container_of(tool, struct perf_script, tool);
2163 	struct addr_location al;
2164 
2165 	if (perf_time__ranges_skip_sample(scr->ptime_range, scr->range_num,
2166 					  sample->time)) {
2167 		return 0;
2168 	}
2169 
2170 	if (debug_mode) {
2171 		if (sample->time < last_timestamp) {
2172 			pr_err("Samples misordered, previous: %" PRIu64
2173 				" this: %" PRIu64 "\n", last_timestamp,
2174 				sample->time);
2175 			nr_unordered++;
2176 		}
2177 		last_timestamp = sample->time;
2178 		return 0;
2179 	}
2180 
2181 	if (machine__resolve(machine, &al, sample) < 0) {
2182 		pr_err("problem processing %d event, skipping it.\n",
2183 		       event->header.type);
2184 		return -1;
2185 	}
2186 
2187 	if (al.filtered)
2188 		goto out_put;
2189 
2190 	if (filter_cpu(sample))
2191 		goto out_put;
2192 
2193 	if (scripting_ops)
2194 		scripting_ops->process_event(event, sample, evsel, &al);
2195 	else
2196 		process_event(scr, sample, evsel, &al, machine);
2197 
2198 out_put:
2199 	addr_location__put(&al);
2200 	return 0;
2201 }
2202 
2203 static int process_attr(struct perf_tool *tool, union perf_event *event,
2204 			struct evlist **pevlist)
2205 {
2206 	struct perf_script *scr = container_of(tool, struct perf_script, tool);
2207 	struct evlist *evlist;
2208 	struct evsel *evsel, *pos;
2209 	u64 sample_type;
2210 	int err;
2211 	static struct evsel_script *es;
2212 
2213 	err = perf_event__process_attr(tool, event, pevlist);
2214 	if (err)
2215 		return err;
2216 
2217 	evlist = *pevlist;
2218 	evsel = evlist__last(*pevlist);
2219 
2220 	if (!evsel->priv) {
2221 		if (scr->per_event_dump) {
2222 			evsel->priv = perf_evsel_script__new(evsel,
2223 						scr->session->data);
2224 		} else {
2225 			es = zalloc(sizeof(*es));
2226 			if (!es)
2227 				return -ENOMEM;
2228 			es->fp = stdout;
2229 			evsel->priv = es;
2230 		}
2231 	}
2232 
2233 	if (evsel->core.attr.type >= PERF_TYPE_MAX &&
2234 	    evsel->core.attr.type != PERF_TYPE_SYNTH)
2235 		return 0;
2236 
2237 	evlist__for_each_entry(evlist, pos) {
2238 		if (pos->core.attr.type == evsel->core.attr.type && pos != evsel)
2239 			return 0;
2240 	}
2241 
2242 	if (evsel->core.attr.sample_type) {
2243 		err = evsel__check_attr(evsel, scr->session);
2244 		if (err)
2245 			return err;
2246 	}
2247 
2248 	/*
2249 	 * Check if we need to enable callchains based
2250 	 * on events sample_type.
2251 	 */
2252 	sample_type = evlist__combined_sample_type(evlist);
2253 	callchain_param_setup(sample_type);
2254 
2255 	/* Enable fields for callchain entries */
2256 	if (symbol_conf.use_callchain &&
2257 	    (sample_type & PERF_SAMPLE_CALLCHAIN ||
2258 	     sample_type & PERF_SAMPLE_BRANCH_STACK ||
2259 	     (sample_type & PERF_SAMPLE_REGS_USER &&
2260 	      sample_type & PERF_SAMPLE_STACK_USER))) {
2261 		int type = output_type(evsel->core.attr.type);
2262 
2263 		if (!(output[type].user_unset_fields & PERF_OUTPUT_IP))
2264 			output[type].fields |= PERF_OUTPUT_IP;
2265 		if (!(output[type].user_unset_fields & PERF_OUTPUT_SYM))
2266 			output[type].fields |= PERF_OUTPUT_SYM;
2267 	}
2268 	set_print_ip_opts(&evsel->core.attr);
2269 	return 0;
2270 }
2271 
2272 static int print_event_with_time(struct perf_tool *tool,
2273 				 union perf_event *event,
2274 				 struct perf_sample *sample,
2275 				 struct machine *machine,
2276 				 pid_t pid, pid_t tid, u64 timestamp)
2277 {
2278 	struct perf_script *script = container_of(tool, struct perf_script, tool);
2279 	struct perf_session *session = script->session;
2280 	struct evsel *evsel = evlist__id2evsel(session->evlist, sample->id);
2281 	struct thread *thread = NULL;
2282 
2283 	if (evsel && !evsel->core.attr.sample_id_all) {
2284 		sample->cpu = 0;
2285 		sample->time = timestamp;
2286 		sample->pid = pid;
2287 		sample->tid = tid;
2288 	}
2289 
2290 	if (filter_cpu(sample))
2291 		return 0;
2292 
2293 	if (tid != -1)
2294 		thread = machine__findnew_thread(machine, pid, tid);
2295 
2296 	if (evsel) {
2297 		perf_sample__fprintf_start(script, sample, thread, evsel,
2298 					   event->header.type, stdout);
2299 	}
2300 
2301 	perf_event__fprintf(event, machine, stdout);
2302 
2303 	thread__put(thread);
2304 
2305 	return 0;
2306 }
2307 
2308 static int print_event(struct perf_tool *tool, union perf_event *event,
2309 		       struct perf_sample *sample, struct machine *machine,
2310 		       pid_t pid, pid_t tid)
2311 {
2312 	return print_event_with_time(tool, event, sample, machine, pid, tid, 0);
2313 }
2314 
2315 static int process_comm_event(struct perf_tool *tool,
2316 			      union perf_event *event,
2317 			      struct perf_sample *sample,
2318 			      struct machine *machine)
2319 {
2320 	if (perf_event__process_comm(tool, event, sample, machine) < 0)
2321 		return -1;
2322 
2323 	return print_event(tool, event, sample, machine, event->comm.pid,
2324 			   event->comm.tid);
2325 }
2326 
2327 static int process_namespaces_event(struct perf_tool *tool,
2328 				    union perf_event *event,
2329 				    struct perf_sample *sample,
2330 				    struct machine *machine)
2331 {
2332 	if (perf_event__process_namespaces(tool, event, sample, machine) < 0)
2333 		return -1;
2334 
2335 	return print_event(tool, event, sample, machine, event->namespaces.pid,
2336 			   event->namespaces.tid);
2337 }
2338 
2339 static int process_cgroup_event(struct perf_tool *tool,
2340 				union perf_event *event,
2341 				struct perf_sample *sample,
2342 				struct machine *machine)
2343 {
2344 	if (perf_event__process_cgroup(tool, event, sample, machine) < 0)
2345 		return -1;
2346 
2347 	return print_event(tool, event, sample, machine, sample->pid,
2348 			    sample->tid);
2349 }
2350 
2351 static int process_fork_event(struct perf_tool *tool,
2352 			      union perf_event *event,
2353 			      struct perf_sample *sample,
2354 			      struct machine *machine)
2355 {
2356 	if (perf_event__process_fork(tool, event, sample, machine) < 0)
2357 		return -1;
2358 
2359 	return print_event_with_time(tool, event, sample, machine,
2360 				     event->fork.pid, event->fork.tid,
2361 				     event->fork.time);
2362 }
2363 static int process_exit_event(struct perf_tool *tool,
2364 			      union perf_event *event,
2365 			      struct perf_sample *sample,
2366 			      struct machine *machine)
2367 {
2368 	/* Print before 'exit' deletes anything */
2369 	if (print_event_with_time(tool, event, sample, machine, event->fork.pid,
2370 				  event->fork.tid, event->fork.time))
2371 		return -1;
2372 
2373 	return perf_event__process_exit(tool, event, sample, machine);
2374 }
2375 
2376 static int process_mmap_event(struct perf_tool *tool,
2377 			      union perf_event *event,
2378 			      struct perf_sample *sample,
2379 			      struct machine *machine)
2380 {
2381 	if (perf_event__process_mmap(tool, event, sample, machine) < 0)
2382 		return -1;
2383 
2384 	return print_event(tool, event, sample, machine, event->mmap.pid,
2385 			   event->mmap.tid);
2386 }
2387 
2388 static int process_mmap2_event(struct perf_tool *tool,
2389 			      union perf_event *event,
2390 			      struct perf_sample *sample,
2391 			      struct machine *machine)
2392 {
2393 	if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
2394 		return -1;
2395 
2396 	return print_event(tool, event, sample, machine, event->mmap2.pid,
2397 			   event->mmap2.tid);
2398 }
2399 
2400 static int process_switch_event(struct perf_tool *tool,
2401 				union perf_event *event,
2402 				struct perf_sample *sample,
2403 				struct machine *machine)
2404 {
2405 	struct perf_script *script = container_of(tool, struct perf_script, tool);
2406 
2407 	if (perf_event__process_switch(tool, event, sample, machine) < 0)
2408 		return -1;
2409 
2410 	if (scripting_ops && scripting_ops->process_switch)
2411 		scripting_ops->process_switch(event, sample, machine);
2412 
2413 	if (!script->show_switch_events)
2414 		return 0;
2415 
2416 	return print_event(tool, event, sample, machine, sample->pid,
2417 			   sample->tid);
2418 }
2419 
2420 static int
2421 process_lost_event(struct perf_tool *tool,
2422 		   union perf_event *event,
2423 		   struct perf_sample *sample,
2424 		   struct machine *machine)
2425 {
2426 	return print_event(tool, event, sample, machine, sample->pid,
2427 			   sample->tid);
2428 }
2429 
2430 static int
2431 process_finished_round_event(struct perf_tool *tool __maybe_unused,
2432 			     union perf_event *event,
2433 			     struct ordered_events *oe __maybe_unused)
2434 
2435 {
2436 	perf_event__fprintf(event, NULL, stdout);
2437 	return 0;
2438 }
2439 
2440 static int
2441 process_bpf_events(struct perf_tool *tool __maybe_unused,
2442 		   union perf_event *event,
2443 		   struct perf_sample *sample,
2444 		   struct machine *machine)
2445 {
2446 	if (machine__process_ksymbol(machine, event, sample) < 0)
2447 		return -1;
2448 
2449 	return print_event(tool, event, sample, machine, sample->pid,
2450 			   sample->tid);
2451 }
2452 
2453 static int process_text_poke_events(struct perf_tool *tool,
2454 				    union perf_event *event,
2455 				    struct perf_sample *sample,
2456 				    struct machine *machine)
2457 {
2458 	if (perf_event__process_text_poke(tool, event, sample, machine) < 0)
2459 		return -1;
2460 
2461 	return print_event(tool, event, sample, machine, sample->pid,
2462 			   sample->tid);
2463 }
2464 
2465 static void sig_handler(int sig __maybe_unused)
2466 {
2467 	session_done = 1;
2468 }
2469 
2470 static void perf_script__fclose_per_event_dump(struct perf_script *script)
2471 {
2472 	struct evlist *evlist = script->session->evlist;
2473 	struct evsel *evsel;
2474 
2475 	evlist__for_each_entry(evlist, evsel) {
2476 		if (!evsel->priv)
2477 			break;
2478 		perf_evsel_script__delete(evsel->priv);
2479 		evsel->priv = NULL;
2480 	}
2481 }
2482 
2483 static int perf_script__fopen_per_event_dump(struct perf_script *script)
2484 {
2485 	struct evsel *evsel;
2486 
2487 	evlist__for_each_entry(script->session->evlist, evsel) {
2488 		/*
2489 		 * Already setup? I.e. we may be called twice in cases like
2490 		 * Intel PT, one for the intel_pt// and dummy events, then
2491 		 * for the evsels syntheized from the auxtrace info.
2492 		 *
2493 		 * Ses perf_script__process_auxtrace_info.
2494 		 */
2495 		if (evsel->priv != NULL)
2496 			continue;
2497 
2498 		evsel->priv = perf_evsel_script__new(evsel, script->session->data);
2499 		if (evsel->priv == NULL)
2500 			goto out_err_fclose;
2501 	}
2502 
2503 	return 0;
2504 
2505 out_err_fclose:
2506 	perf_script__fclose_per_event_dump(script);
2507 	return -1;
2508 }
2509 
2510 static int perf_script__setup_per_event_dump(struct perf_script *script)
2511 {
2512 	struct evsel *evsel;
2513 	static struct evsel_script es_stdout;
2514 
2515 	if (script->per_event_dump)
2516 		return perf_script__fopen_per_event_dump(script);
2517 
2518 	es_stdout.fp = stdout;
2519 
2520 	evlist__for_each_entry(script->session->evlist, evsel)
2521 		evsel->priv = &es_stdout;
2522 
2523 	return 0;
2524 }
2525 
2526 static void perf_script__exit_per_event_dump_stats(struct perf_script *script)
2527 {
2528 	struct evsel *evsel;
2529 
2530 	evlist__for_each_entry(script->session->evlist, evsel) {
2531 		struct evsel_script *es = evsel->priv;
2532 
2533 		perf_evsel_script__fprintf(es, stdout);
2534 		perf_evsel_script__delete(es);
2535 		evsel->priv = NULL;
2536 	}
2537 }
2538 
2539 static int __cmd_script(struct perf_script *script)
2540 {
2541 	int ret;
2542 
2543 	signal(SIGINT, sig_handler);
2544 
2545 	perf_stat__init_shadow_stats();
2546 
2547 	/* override event processing functions */
2548 	if (script->show_task_events) {
2549 		script->tool.comm = process_comm_event;
2550 		script->tool.fork = process_fork_event;
2551 		script->tool.exit = process_exit_event;
2552 	}
2553 	if (script->show_mmap_events) {
2554 		script->tool.mmap = process_mmap_event;
2555 		script->tool.mmap2 = process_mmap2_event;
2556 	}
2557 	if (script->show_switch_events || (scripting_ops && scripting_ops->process_switch))
2558 		script->tool.context_switch = process_switch_event;
2559 	if (script->show_namespace_events)
2560 		script->tool.namespaces = process_namespaces_event;
2561 	if (script->show_cgroup_events)
2562 		script->tool.cgroup = process_cgroup_event;
2563 	if (script->show_lost_events)
2564 		script->tool.lost = process_lost_event;
2565 	if (script->show_round_events) {
2566 		script->tool.ordered_events = false;
2567 		script->tool.finished_round = process_finished_round_event;
2568 	}
2569 	if (script->show_bpf_events) {
2570 		script->tool.ksymbol = process_bpf_events;
2571 		script->tool.bpf     = process_bpf_events;
2572 	}
2573 	if (script->show_text_poke_events) {
2574 		script->tool.ksymbol   = process_bpf_events;
2575 		script->tool.text_poke = process_text_poke_events;
2576 	}
2577 
2578 	if (perf_script__setup_per_event_dump(script)) {
2579 		pr_err("Couldn't create the per event dump files\n");
2580 		return -1;
2581 	}
2582 
2583 	ret = perf_session__process_events(script->session);
2584 
2585 	if (script->per_event_dump)
2586 		perf_script__exit_per_event_dump_stats(script);
2587 
2588 	if (debug_mode)
2589 		pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
2590 
2591 	return ret;
2592 }
2593 
2594 struct script_spec {
2595 	struct list_head	node;
2596 	struct scripting_ops	*ops;
2597 	char			spec[];
2598 };
2599 
2600 static LIST_HEAD(script_specs);
2601 
2602 static struct script_spec *script_spec__new(const char *spec,
2603 					    struct scripting_ops *ops)
2604 {
2605 	struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
2606 
2607 	if (s != NULL) {
2608 		strcpy(s->spec, spec);
2609 		s->ops = ops;
2610 	}
2611 
2612 	return s;
2613 }
2614 
2615 static void script_spec__add(struct script_spec *s)
2616 {
2617 	list_add_tail(&s->node, &script_specs);
2618 }
2619 
2620 static struct script_spec *script_spec__find(const char *spec)
2621 {
2622 	struct script_spec *s;
2623 
2624 	list_for_each_entry(s, &script_specs, node)
2625 		if (strcasecmp(s->spec, spec) == 0)
2626 			return s;
2627 	return NULL;
2628 }
2629 
2630 int script_spec_register(const char *spec, struct scripting_ops *ops)
2631 {
2632 	struct script_spec *s;
2633 
2634 	s = script_spec__find(spec);
2635 	if (s)
2636 		return -1;
2637 
2638 	s = script_spec__new(spec, ops);
2639 	if (!s)
2640 		return -1;
2641 	else
2642 		script_spec__add(s);
2643 
2644 	return 0;
2645 }
2646 
2647 static struct scripting_ops *script_spec__lookup(const char *spec)
2648 {
2649 	struct script_spec *s = script_spec__find(spec);
2650 	if (!s)
2651 		return NULL;
2652 
2653 	return s->ops;
2654 }
2655 
2656 static void list_available_languages(void)
2657 {
2658 	struct script_spec *s;
2659 
2660 	fprintf(stderr, "\n");
2661 	fprintf(stderr, "Scripting language extensions (used in "
2662 		"perf script -s [spec:]script.[spec]):\n\n");
2663 
2664 	list_for_each_entry(s, &script_specs, node)
2665 		fprintf(stderr, "  %-42s [%s]\n", s->spec, s->ops->name);
2666 
2667 	fprintf(stderr, "\n");
2668 }
2669 
2670 static int parse_scriptname(const struct option *opt __maybe_unused,
2671 			    const char *str, int unset __maybe_unused)
2672 {
2673 	char spec[PATH_MAX];
2674 	const char *script, *ext;
2675 	int len;
2676 
2677 	if (strcmp(str, "lang") == 0) {
2678 		list_available_languages();
2679 		exit(0);
2680 	}
2681 
2682 	script = strchr(str, ':');
2683 	if (script) {
2684 		len = script - str;
2685 		if (len >= PATH_MAX) {
2686 			fprintf(stderr, "invalid language specifier");
2687 			return -1;
2688 		}
2689 		strncpy(spec, str, len);
2690 		spec[len] = '\0';
2691 		scripting_ops = script_spec__lookup(spec);
2692 		if (!scripting_ops) {
2693 			fprintf(stderr, "invalid language specifier");
2694 			return -1;
2695 		}
2696 		script++;
2697 	} else {
2698 		script = str;
2699 		ext = strrchr(script, '.');
2700 		if (!ext) {
2701 			fprintf(stderr, "invalid script extension");
2702 			return -1;
2703 		}
2704 		scripting_ops = script_spec__lookup(++ext);
2705 		if (!scripting_ops) {
2706 			fprintf(stderr, "invalid script extension");
2707 			return -1;
2708 		}
2709 	}
2710 
2711 	script_name = strdup(script);
2712 
2713 	return 0;
2714 }
2715 
2716 static int parse_output_fields(const struct option *opt __maybe_unused,
2717 			    const char *arg, int unset __maybe_unused)
2718 {
2719 	char *tok, *strtok_saveptr = NULL;
2720 	int i, imax = ARRAY_SIZE(all_output_options);
2721 	int j;
2722 	int rc = 0;
2723 	char *str = strdup(arg);
2724 	int type = -1;
2725 	enum { DEFAULT, SET, ADD, REMOVE } change = DEFAULT;
2726 
2727 	if (!str)
2728 		return -ENOMEM;
2729 
2730 	/* first word can state for which event type the user is specifying
2731 	 * the fields. If no type exists, the specified fields apply to all
2732 	 * event types found in the file minus the invalid fields for a type.
2733 	 */
2734 	tok = strchr(str, ':');
2735 	if (tok) {
2736 		*tok = '\0';
2737 		tok++;
2738 		if (!strcmp(str, "hw"))
2739 			type = PERF_TYPE_HARDWARE;
2740 		else if (!strcmp(str, "sw"))
2741 			type = PERF_TYPE_SOFTWARE;
2742 		else if (!strcmp(str, "trace"))
2743 			type = PERF_TYPE_TRACEPOINT;
2744 		else if (!strcmp(str, "raw"))
2745 			type = PERF_TYPE_RAW;
2746 		else if (!strcmp(str, "break"))
2747 			type = PERF_TYPE_BREAKPOINT;
2748 		else if (!strcmp(str, "synth"))
2749 			type = OUTPUT_TYPE_SYNTH;
2750 		else {
2751 			fprintf(stderr, "Invalid event type in field string.\n");
2752 			rc = -EINVAL;
2753 			goto out;
2754 		}
2755 
2756 		if (output[type].user_set)
2757 			pr_warning("Overriding previous field request for %s events.\n",
2758 				   event_type(type));
2759 
2760 		/* Don't override defaults for +- */
2761 		if (strchr(tok, '+') || strchr(tok, '-'))
2762 			goto parse;
2763 
2764 		output[type].fields = 0;
2765 		output[type].user_set = true;
2766 		output[type].wildcard_set = false;
2767 
2768 	} else {
2769 		tok = str;
2770 		if (strlen(str) == 0) {
2771 			fprintf(stderr,
2772 				"Cannot set fields to 'none' for all event types.\n");
2773 			rc = -EINVAL;
2774 			goto out;
2775 		}
2776 
2777 		/* Don't override defaults for +- */
2778 		if (strchr(str, '+') || strchr(str, '-'))
2779 			goto parse;
2780 
2781 		if (output_set_by_user())
2782 			pr_warning("Overriding previous field request for all events.\n");
2783 
2784 		for (j = 0; j < OUTPUT_TYPE_MAX; ++j) {
2785 			output[j].fields = 0;
2786 			output[j].user_set = true;
2787 			output[j].wildcard_set = true;
2788 		}
2789 	}
2790 
2791 parse:
2792 	for (tok = strtok_r(tok, ",", &strtok_saveptr); tok; tok = strtok_r(NULL, ",", &strtok_saveptr)) {
2793 		if (*tok == '+') {
2794 			if (change == SET)
2795 				goto out_badmix;
2796 			change = ADD;
2797 			tok++;
2798 		} else if (*tok == '-') {
2799 			if (change == SET)
2800 				goto out_badmix;
2801 			change = REMOVE;
2802 			tok++;
2803 		} else {
2804 			if (change != SET && change != DEFAULT)
2805 				goto out_badmix;
2806 			change = SET;
2807 		}
2808 
2809 		for (i = 0; i < imax; ++i) {
2810 			if (strcmp(tok, all_output_options[i].str) == 0)
2811 				break;
2812 		}
2813 		if (i == imax && strcmp(tok, "flags") == 0) {
2814 			print_flags = change != REMOVE;
2815 			continue;
2816 		}
2817 		if (i == imax) {
2818 			fprintf(stderr, "Invalid field requested.\n");
2819 			rc = -EINVAL;
2820 			goto out;
2821 		}
2822 
2823 		if (type == -1) {
2824 			/* add user option to all events types for
2825 			 * which it is valid
2826 			 */
2827 			for (j = 0; j < OUTPUT_TYPE_MAX; ++j) {
2828 				if (output[j].invalid_fields & all_output_options[i].field) {
2829 					pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
2830 						   all_output_options[i].str, event_type(j));
2831 				} else {
2832 					if (change == REMOVE) {
2833 						output[j].fields &= ~all_output_options[i].field;
2834 						output[j].user_set_fields &= ~all_output_options[i].field;
2835 						output[j].user_unset_fields |= all_output_options[i].field;
2836 					} else {
2837 						output[j].fields |= all_output_options[i].field;
2838 						output[j].user_set_fields |= all_output_options[i].field;
2839 						output[j].user_unset_fields &= ~all_output_options[i].field;
2840 					}
2841 					output[j].user_set = true;
2842 					output[j].wildcard_set = true;
2843 				}
2844 			}
2845 		} else {
2846 			if (output[type].invalid_fields & all_output_options[i].field) {
2847 				fprintf(stderr, "\'%s\' not valid for %s events.\n",
2848 					 all_output_options[i].str, event_type(type));
2849 
2850 				rc = -EINVAL;
2851 				goto out;
2852 			}
2853 			if (change == REMOVE)
2854 				output[type].fields &= ~all_output_options[i].field;
2855 			else
2856 				output[type].fields |= all_output_options[i].field;
2857 			output[type].user_set = true;
2858 			output[type].wildcard_set = true;
2859 		}
2860 	}
2861 
2862 	if (type >= 0) {
2863 		if (output[type].fields == 0) {
2864 			pr_debug("No fields requested for %s type. "
2865 				 "Events will not be displayed.\n", event_type(type));
2866 		}
2867 	}
2868 	goto out;
2869 
2870 out_badmix:
2871 	fprintf(stderr, "Cannot mix +-field with overridden fields\n");
2872 	rc = -EINVAL;
2873 out:
2874 	free(str);
2875 	return rc;
2876 }
2877 
2878 #define for_each_lang(scripts_path, scripts_dir, lang_dirent)		\
2879 	while ((lang_dirent = readdir(scripts_dir)) != NULL)		\
2880 		if ((lang_dirent->d_type == DT_DIR ||			\
2881 		     (lang_dirent->d_type == DT_UNKNOWN &&		\
2882 		      is_directory(scripts_path, lang_dirent))) &&	\
2883 		    (strcmp(lang_dirent->d_name, ".")) &&		\
2884 		    (strcmp(lang_dirent->d_name, "..")))
2885 
2886 #define for_each_script(lang_path, lang_dir, script_dirent)		\
2887 	while ((script_dirent = readdir(lang_dir)) != NULL)		\
2888 		if (script_dirent->d_type != DT_DIR &&			\
2889 		    (script_dirent->d_type != DT_UNKNOWN ||		\
2890 		     !is_directory(lang_path, script_dirent)))
2891 
2892 
2893 #define RECORD_SUFFIX			"-record"
2894 #define REPORT_SUFFIX			"-report"
2895 
2896 struct script_desc {
2897 	struct list_head	node;
2898 	char			*name;
2899 	char			*half_liner;
2900 	char			*args;
2901 };
2902 
2903 static LIST_HEAD(script_descs);
2904 
2905 static struct script_desc *script_desc__new(const char *name)
2906 {
2907 	struct script_desc *s = zalloc(sizeof(*s));
2908 
2909 	if (s != NULL && name)
2910 		s->name = strdup(name);
2911 
2912 	return s;
2913 }
2914 
2915 static void script_desc__delete(struct script_desc *s)
2916 {
2917 	zfree(&s->name);
2918 	zfree(&s->half_liner);
2919 	zfree(&s->args);
2920 	free(s);
2921 }
2922 
2923 static void script_desc__add(struct script_desc *s)
2924 {
2925 	list_add_tail(&s->node, &script_descs);
2926 }
2927 
2928 static struct script_desc *script_desc__find(const char *name)
2929 {
2930 	struct script_desc *s;
2931 
2932 	list_for_each_entry(s, &script_descs, node)
2933 		if (strcasecmp(s->name, name) == 0)
2934 			return s;
2935 	return NULL;
2936 }
2937 
2938 static struct script_desc *script_desc__findnew(const char *name)
2939 {
2940 	struct script_desc *s = script_desc__find(name);
2941 
2942 	if (s)
2943 		return s;
2944 
2945 	s = script_desc__new(name);
2946 	if (!s)
2947 		return NULL;
2948 
2949 	script_desc__add(s);
2950 
2951 	return s;
2952 }
2953 
2954 static const char *ends_with(const char *str, const char *suffix)
2955 {
2956 	size_t suffix_len = strlen(suffix);
2957 	const char *p = str;
2958 
2959 	if (strlen(str) > suffix_len) {
2960 		p = str + strlen(str) - suffix_len;
2961 		if (!strncmp(p, suffix, suffix_len))
2962 			return p;
2963 	}
2964 
2965 	return NULL;
2966 }
2967 
2968 static int read_script_info(struct script_desc *desc, const char *filename)
2969 {
2970 	char line[BUFSIZ], *p;
2971 	FILE *fp;
2972 
2973 	fp = fopen(filename, "r");
2974 	if (!fp)
2975 		return -1;
2976 
2977 	while (fgets(line, sizeof(line), fp)) {
2978 		p = skip_spaces(line);
2979 		if (strlen(p) == 0)
2980 			continue;
2981 		if (*p != '#')
2982 			continue;
2983 		p++;
2984 		if (strlen(p) && *p == '!')
2985 			continue;
2986 
2987 		p = skip_spaces(p);
2988 		if (strlen(p) && p[strlen(p) - 1] == '\n')
2989 			p[strlen(p) - 1] = '\0';
2990 
2991 		if (!strncmp(p, "description:", strlen("description:"))) {
2992 			p += strlen("description:");
2993 			desc->half_liner = strdup(skip_spaces(p));
2994 			continue;
2995 		}
2996 
2997 		if (!strncmp(p, "args:", strlen("args:"))) {
2998 			p += strlen("args:");
2999 			desc->args = strdup(skip_spaces(p));
3000 			continue;
3001 		}
3002 	}
3003 
3004 	fclose(fp);
3005 
3006 	return 0;
3007 }
3008 
3009 static char *get_script_root(struct dirent *script_dirent, const char *suffix)
3010 {
3011 	char *script_root, *str;
3012 
3013 	script_root = strdup(script_dirent->d_name);
3014 	if (!script_root)
3015 		return NULL;
3016 
3017 	str = (char *)ends_with(script_root, suffix);
3018 	if (!str) {
3019 		free(script_root);
3020 		return NULL;
3021 	}
3022 
3023 	*str = '\0';
3024 	return script_root;
3025 }
3026 
3027 static int list_available_scripts(const struct option *opt __maybe_unused,
3028 				  const char *s __maybe_unused,
3029 				  int unset __maybe_unused)
3030 {
3031 	struct dirent *script_dirent, *lang_dirent;
3032 	char scripts_path[MAXPATHLEN];
3033 	DIR *scripts_dir, *lang_dir;
3034 	char script_path[MAXPATHLEN];
3035 	char lang_path[MAXPATHLEN];
3036 	struct script_desc *desc;
3037 	char first_half[BUFSIZ];
3038 	char *script_root;
3039 
3040 	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
3041 
3042 	scripts_dir = opendir(scripts_path);
3043 	if (!scripts_dir) {
3044 		fprintf(stdout,
3045 			"open(%s) failed.\n"
3046 			"Check \"PERF_EXEC_PATH\" env to set scripts dir.\n",
3047 			scripts_path);
3048 		exit(-1);
3049 	}
3050 
3051 	for_each_lang(scripts_path, scripts_dir, lang_dirent) {
3052 		scnprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
3053 			  lang_dirent->d_name);
3054 		lang_dir = opendir(lang_path);
3055 		if (!lang_dir)
3056 			continue;
3057 
3058 		for_each_script(lang_path, lang_dir, script_dirent) {
3059 			script_root = get_script_root(script_dirent, REPORT_SUFFIX);
3060 			if (script_root) {
3061 				desc = script_desc__findnew(script_root);
3062 				scnprintf(script_path, MAXPATHLEN, "%s/%s",
3063 					  lang_path, script_dirent->d_name);
3064 				read_script_info(desc, script_path);
3065 				free(script_root);
3066 			}
3067 		}
3068 	}
3069 
3070 	fprintf(stdout, "List of available trace scripts:\n");
3071 	list_for_each_entry(desc, &script_descs, node) {
3072 		sprintf(first_half, "%s %s", desc->name,
3073 			desc->args ? desc->args : "");
3074 		fprintf(stdout, "  %-36s %s\n", first_half,
3075 			desc->half_liner ? desc->half_liner : "");
3076 	}
3077 
3078 	exit(0);
3079 }
3080 
3081 /*
3082  * Some scripts specify the required events in their "xxx-record" file,
3083  * this function will check if the events in perf.data match those
3084  * mentioned in the "xxx-record".
3085  *
3086  * Fixme: All existing "xxx-record" are all in good formats "-e event ",
3087  * which is covered well now. And new parsing code should be added to
3088  * cover the future complexing formats like event groups etc.
3089  */
3090 static int check_ev_match(char *dir_name, char *scriptname,
3091 			struct perf_session *session)
3092 {
3093 	char filename[MAXPATHLEN], evname[128];
3094 	char line[BUFSIZ], *p;
3095 	struct evsel *pos;
3096 	int match, len;
3097 	FILE *fp;
3098 
3099 	scnprintf(filename, MAXPATHLEN, "%s/bin/%s-record", dir_name, scriptname);
3100 
3101 	fp = fopen(filename, "r");
3102 	if (!fp)
3103 		return -1;
3104 
3105 	while (fgets(line, sizeof(line), fp)) {
3106 		p = skip_spaces(line);
3107 		if (*p == '#')
3108 			continue;
3109 
3110 		while (strlen(p)) {
3111 			p = strstr(p, "-e");
3112 			if (!p)
3113 				break;
3114 
3115 			p += 2;
3116 			p = skip_spaces(p);
3117 			len = strcspn(p, " \t");
3118 			if (!len)
3119 				break;
3120 
3121 			snprintf(evname, len + 1, "%s", p);
3122 
3123 			match = 0;
3124 			evlist__for_each_entry(session->evlist, pos) {
3125 				if (!strcmp(evsel__name(pos), evname)) {
3126 					match = 1;
3127 					break;
3128 				}
3129 			}
3130 
3131 			if (!match) {
3132 				fclose(fp);
3133 				return -1;
3134 			}
3135 		}
3136 	}
3137 
3138 	fclose(fp);
3139 	return 0;
3140 }
3141 
3142 /*
3143  * Return -1 if none is found, otherwise the actual scripts number.
3144  *
3145  * Currently the only user of this function is the script browser, which
3146  * will list all statically runnable scripts, select one, execute it and
3147  * show the output in a perf browser.
3148  */
3149 int find_scripts(char **scripts_array, char **scripts_path_array, int num,
3150 		 int pathlen)
3151 {
3152 	struct dirent *script_dirent, *lang_dirent;
3153 	char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
3154 	DIR *scripts_dir, *lang_dir;
3155 	struct perf_session *session;
3156 	struct perf_data data = {
3157 		.path = input_name,
3158 		.mode = PERF_DATA_MODE_READ,
3159 	};
3160 	char *temp;
3161 	int i = 0;
3162 
3163 	session = perf_session__new(&data, false, NULL);
3164 	if (IS_ERR(session))
3165 		return PTR_ERR(session);
3166 
3167 	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
3168 
3169 	scripts_dir = opendir(scripts_path);
3170 	if (!scripts_dir) {
3171 		perf_session__delete(session);
3172 		return -1;
3173 	}
3174 
3175 	for_each_lang(scripts_path, scripts_dir, lang_dirent) {
3176 		scnprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
3177 			  lang_dirent->d_name);
3178 #ifndef HAVE_LIBPERL_SUPPORT
3179 		if (strstr(lang_path, "perl"))
3180 			continue;
3181 #endif
3182 #ifndef HAVE_LIBPYTHON_SUPPORT
3183 		if (strstr(lang_path, "python"))
3184 			continue;
3185 #endif
3186 
3187 		lang_dir = opendir(lang_path);
3188 		if (!lang_dir)
3189 			continue;
3190 
3191 		for_each_script(lang_path, lang_dir, script_dirent) {
3192 			/* Skip those real time scripts: xxxtop.p[yl] */
3193 			if (strstr(script_dirent->d_name, "top."))
3194 				continue;
3195 			if (i >= num)
3196 				break;
3197 			snprintf(scripts_path_array[i], pathlen, "%s/%s",
3198 				lang_path,
3199 				script_dirent->d_name);
3200 			temp = strchr(script_dirent->d_name, '.');
3201 			snprintf(scripts_array[i],
3202 				(temp - script_dirent->d_name) + 1,
3203 				"%s", script_dirent->d_name);
3204 
3205 			if (check_ev_match(lang_path,
3206 					scripts_array[i], session))
3207 				continue;
3208 
3209 			i++;
3210 		}
3211 		closedir(lang_dir);
3212 	}
3213 
3214 	closedir(scripts_dir);
3215 	perf_session__delete(session);
3216 	return i;
3217 }
3218 
3219 static char *get_script_path(const char *script_root, const char *suffix)
3220 {
3221 	struct dirent *script_dirent, *lang_dirent;
3222 	char scripts_path[MAXPATHLEN];
3223 	char script_path[MAXPATHLEN];
3224 	DIR *scripts_dir, *lang_dir;
3225 	char lang_path[MAXPATHLEN];
3226 	char *__script_root;
3227 
3228 	snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
3229 
3230 	scripts_dir = opendir(scripts_path);
3231 	if (!scripts_dir)
3232 		return NULL;
3233 
3234 	for_each_lang(scripts_path, scripts_dir, lang_dirent) {
3235 		scnprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
3236 			  lang_dirent->d_name);
3237 		lang_dir = opendir(lang_path);
3238 		if (!lang_dir)
3239 			continue;
3240 
3241 		for_each_script(lang_path, lang_dir, script_dirent) {
3242 			__script_root = get_script_root(script_dirent, suffix);
3243 			if (__script_root && !strcmp(script_root, __script_root)) {
3244 				free(__script_root);
3245 				closedir(scripts_dir);
3246 				scnprintf(script_path, MAXPATHLEN, "%s/%s",
3247 					  lang_path, script_dirent->d_name);
3248 				closedir(lang_dir);
3249 				return strdup(script_path);
3250 			}
3251 			free(__script_root);
3252 		}
3253 		closedir(lang_dir);
3254 	}
3255 	closedir(scripts_dir);
3256 
3257 	return NULL;
3258 }
3259 
3260 static bool is_top_script(const char *script_path)
3261 {
3262 	return ends_with(script_path, "top") != NULL;
3263 }
3264 
3265 static int has_required_arg(char *script_path)
3266 {
3267 	struct script_desc *desc;
3268 	int n_args = 0;
3269 	char *p;
3270 
3271 	desc = script_desc__new(NULL);
3272 
3273 	if (read_script_info(desc, script_path))
3274 		goto out;
3275 
3276 	if (!desc->args)
3277 		goto out;
3278 
3279 	for (p = desc->args; *p; p++)
3280 		if (*p == '<')
3281 			n_args++;
3282 out:
3283 	script_desc__delete(desc);
3284 
3285 	return n_args;
3286 }
3287 
3288 static int have_cmd(int argc, const char **argv)
3289 {
3290 	char **__argv = malloc(sizeof(const char *) * argc);
3291 
3292 	if (!__argv) {
3293 		pr_err("malloc failed\n");
3294 		return -1;
3295 	}
3296 
3297 	memcpy(__argv, argv, sizeof(const char *) * argc);
3298 	argc = parse_options(argc, (const char **)__argv, record_options,
3299 			     NULL, PARSE_OPT_STOP_AT_NON_OPTION);
3300 	free(__argv);
3301 
3302 	system_wide = (argc == 0);
3303 
3304 	return 0;
3305 }
3306 
3307 static void script__setup_sample_type(struct perf_script *script)
3308 {
3309 	struct perf_session *session = script->session;
3310 	u64 sample_type = evlist__combined_sample_type(session->evlist);
3311 
3312 	if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
3313 		if ((sample_type & PERF_SAMPLE_REGS_USER) &&
3314 		    (sample_type & PERF_SAMPLE_STACK_USER)) {
3315 			callchain_param.record_mode = CALLCHAIN_DWARF;
3316 			dwarf_callchain_users = true;
3317 		} else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
3318 			callchain_param.record_mode = CALLCHAIN_LBR;
3319 		else
3320 			callchain_param.record_mode = CALLCHAIN_FP;
3321 	}
3322 
3323 	if (script->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
3324 		pr_warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
3325 			   "Please apply --call-graph lbr when recording.\n");
3326 		script->stitch_lbr = false;
3327 	}
3328 }
3329 
3330 static int process_stat_round_event(struct perf_session *session,
3331 				    union perf_event *event)
3332 {
3333 	struct perf_record_stat_round *round = &event->stat_round;
3334 	struct evsel *counter;
3335 
3336 	evlist__for_each_entry(session->evlist, counter) {
3337 		perf_stat_process_counter(&stat_config, counter);
3338 		process_stat(counter, round->time);
3339 	}
3340 
3341 	process_stat_interval(round->time);
3342 	return 0;
3343 }
3344 
3345 static int process_stat_config_event(struct perf_session *session __maybe_unused,
3346 				     union perf_event *event)
3347 {
3348 	perf_event__read_stat_config(&stat_config, &event->stat_config);
3349 	return 0;
3350 }
3351 
3352 static int set_maps(struct perf_script *script)
3353 {
3354 	struct evlist *evlist = script->session->evlist;
3355 
3356 	if (!script->cpus || !script->threads)
3357 		return 0;
3358 
3359 	if (WARN_ONCE(script->allocated, "stats double allocation\n"))
3360 		return -EINVAL;
3361 
3362 	perf_evlist__set_maps(&evlist->core, script->cpus, script->threads);
3363 
3364 	if (evlist__alloc_stats(evlist, true))
3365 		return -ENOMEM;
3366 
3367 	script->allocated = true;
3368 	return 0;
3369 }
3370 
3371 static
3372 int process_thread_map_event(struct perf_session *session,
3373 			     union perf_event *event)
3374 {
3375 	struct perf_tool *tool = session->tool;
3376 	struct perf_script *script = container_of(tool, struct perf_script, tool);
3377 
3378 	if (script->threads) {
3379 		pr_warning("Extra thread map event, ignoring.\n");
3380 		return 0;
3381 	}
3382 
3383 	script->threads = thread_map__new_event(&event->thread_map);
3384 	if (!script->threads)
3385 		return -ENOMEM;
3386 
3387 	return set_maps(script);
3388 }
3389 
3390 static
3391 int process_cpu_map_event(struct perf_session *session,
3392 			  union perf_event *event)
3393 {
3394 	struct perf_tool *tool = session->tool;
3395 	struct perf_script *script = container_of(tool, struct perf_script, tool);
3396 
3397 	if (script->cpus) {
3398 		pr_warning("Extra cpu map event, ignoring.\n");
3399 		return 0;
3400 	}
3401 
3402 	script->cpus = cpu_map__new_data(&event->cpu_map.data);
3403 	if (!script->cpus)
3404 		return -ENOMEM;
3405 
3406 	return set_maps(script);
3407 }
3408 
3409 static int process_feature_event(struct perf_session *session,
3410 				 union perf_event *event)
3411 {
3412 	if (event->feat.feat_id < HEADER_LAST_FEATURE)
3413 		return perf_event__process_feature(session, event);
3414 	return 0;
3415 }
3416 
3417 #ifdef HAVE_AUXTRACE_SUPPORT
3418 static int perf_script__process_auxtrace_info(struct perf_session *session,
3419 					      union perf_event *event)
3420 {
3421 	struct perf_tool *tool = session->tool;
3422 
3423 	int ret = perf_event__process_auxtrace_info(session, event);
3424 
3425 	if (ret == 0) {
3426 		struct perf_script *script = container_of(tool, struct perf_script, tool);
3427 
3428 		ret = perf_script__setup_per_event_dump(script);
3429 	}
3430 
3431 	return ret;
3432 }
3433 #else
3434 #define perf_script__process_auxtrace_info 0
3435 #endif
3436 
3437 static int parse_insn_trace(const struct option *opt __maybe_unused,
3438 			    const char *str __maybe_unused,
3439 			    int unset __maybe_unused)
3440 {
3441 	parse_output_fields(NULL, "+insn,-event,-period", 0);
3442 	itrace_parse_synth_opts(opt, "i0ns", 0);
3443 	symbol_conf.nanosecs = true;
3444 	return 0;
3445 }
3446 
3447 static int parse_xed(const struct option *opt __maybe_unused,
3448 		     const char *str __maybe_unused,
3449 		     int unset __maybe_unused)
3450 {
3451 	if (isatty(1))
3452 		force_pager("xed -F insn: -A -64 | less");
3453 	else
3454 		force_pager("xed -F insn: -A -64");
3455 	return 0;
3456 }
3457 
3458 static int parse_call_trace(const struct option *opt __maybe_unused,
3459 			    const char *str __maybe_unused,
3460 			    int unset __maybe_unused)
3461 {
3462 	parse_output_fields(NULL, "-ip,-addr,-event,-period,+callindent", 0);
3463 	itrace_parse_synth_opts(opt, "cewp", 0);
3464 	symbol_conf.nanosecs = true;
3465 	symbol_conf.pad_output_len_dso = 50;
3466 	return 0;
3467 }
3468 
3469 static int parse_callret_trace(const struct option *opt __maybe_unused,
3470 			    const char *str __maybe_unused,
3471 			    int unset __maybe_unused)
3472 {
3473 	parse_output_fields(NULL, "-ip,-addr,-event,-period,+callindent,+flags", 0);
3474 	itrace_parse_synth_opts(opt, "crewp", 0);
3475 	symbol_conf.nanosecs = true;
3476 	return 0;
3477 }
3478 
3479 int cmd_script(int argc, const char **argv)
3480 {
3481 	bool show_full_info = false;
3482 	bool header = false;
3483 	bool header_only = false;
3484 	bool script_started = false;
3485 	char *rec_script_path = NULL;
3486 	char *rep_script_path = NULL;
3487 	struct perf_session *session;
3488 	struct itrace_synth_opts itrace_synth_opts = {
3489 		.set = false,
3490 		.default_no_sample = true,
3491 	};
3492 	struct utsname uts;
3493 	char *script_path = NULL;
3494 	const char **__argv;
3495 	int i, j, err = 0;
3496 	struct perf_script script = {
3497 		.tool = {
3498 			.sample		 = process_sample_event,
3499 			.mmap		 = perf_event__process_mmap,
3500 			.mmap2		 = perf_event__process_mmap2,
3501 			.comm		 = perf_event__process_comm,
3502 			.namespaces	 = perf_event__process_namespaces,
3503 			.cgroup		 = perf_event__process_cgroup,
3504 			.exit		 = perf_event__process_exit,
3505 			.fork		 = perf_event__process_fork,
3506 			.attr		 = process_attr,
3507 			.event_update   = perf_event__process_event_update,
3508 			.tracing_data	 = perf_event__process_tracing_data,
3509 			.feature	 = process_feature_event,
3510 			.build_id	 = perf_event__process_build_id,
3511 			.id_index	 = perf_event__process_id_index,
3512 			.auxtrace_info	 = perf_script__process_auxtrace_info,
3513 			.auxtrace	 = perf_event__process_auxtrace,
3514 			.auxtrace_error	 = perf_event__process_auxtrace_error,
3515 			.stat		 = perf_event__process_stat_event,
3516 			.stat_round	 = process_stat_round_event,
3517 			.stat_config	 = process_stat_config_event,
3518 			.thread_map	 = process_thread_map_event,
3519 			.cpu_map	 = process_cpu_map_event,
3520 			.ordered_events	 = true,
3521 			.ordering_requires_timestamps = true,
3522 		},
3523 	};
3524 	struct perf_data data = {
3525 		.mode = PERF_DATA_MODE_READ,
3526 	};
3527 	const struct option options[] = {
3528 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
3529 		    "dump raw trace in ASCII"),
3530 	OPT_INCR('v', "verbose", &verbose,
3531 		 "be more verbose (show symbol address, etc)"),
3532 	OPT_BOOLEAN('L', "Latency", &latency_format,
3533 		    "show latency attributes (irqs/preemption disabled, etc)"),
3534 	OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
3535 			   list_available_scripts),
3536 	OPT_CALLBACK('s', "script", NULL, "name",
3537 		     "script file name (lang:script name, script name, or *)",
3538 		     parse_scriptname),
3539 	OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
3540 		   "generate perf-script.xx script in specified language"),
3541 	OPT_STRING('i', "input", &input_name, "file", "input file name"),
3542 	OPT_BOOLEAN('d', "debug-mode", &debug_mode,
3543 		   "do various checks like samples ordering and lost events"),
3544 	OPT_BOOLEAN(0, "header", &header, "Show data header."),
3545 	OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
3546 	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
3547 		   "file", "vmlinux pathname"),
3548 	OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
3549 		   "file", "kallsyms pathname"),
3550 	OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
3551 		    "When printing symbols do not display call chain"),
3552 	OPT_CALLBACK(0, "symfs", NULL, "directory",
3553 		     "Look for files with symbols relative to this directory",
3554 		     symbol__config_symfs),
3555 	OPT_CALLBACK('F', "fields", NULL, "str",
3556 		     "comma separated output fields prepend with 'type:'. "
3557 		     "+field to add and -field to remove."
3558 		     "Valid types: hw,sw,trace,raw,synth. "
3559 		     "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
3560 		     "addr,symoff,srcline,period,iregs,uregs,brstack,"
3561 		     "brstacksym,flags,bpf-output,brstackinsn,brstackoff,"
3562 		     "callindent,insn,insnlen,synth,phys_addr,metric,misc,ipc,tod,"
3563 		     "data_page_size,code_page_size",
3564 		     parse_output_fields),
3565 	OPT_BOOLEAN('a', "all-cpus", &system_wide,
3566 		    "system-wide collection from all CPUs"),
3567 	OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
3568 		   "only consider symbols in these DSOs"),
3569 	OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
3570 		   "only consider these symbols"),
3571 	OPT_INTEGER(0, "addr-range", &symbol_conf.addr_range,
3572 		    "Use with -S to list traced records within address range"),
3573 	OPT_CALLBACK_OPTARG(0, "insn-trace", &itrace_synth_opts, NULL, NULL,
3574 			"Decode instructions from itrace", parse_insn_trace),
3575 	OPT_CALLBACK_OPTARG(0, "xed", NULL, NULL, NULL,
3576 			"Run xed disassembler on output", parse_xed),
3577 	OPT_CALLBACK_OPTARG(0, "call-trace", &itrace_synth_opts, NULL, NULL,
3578 			"Decode calls from from itrace", parse_call_trace),
3579 	OPT_CALLBACK_OPTARG(0, "call-ret-trace", &itrace_synth_opts, NULL, NULL,
3580 			"Decode calls and returns from itrace", parse_callret_trace),
3581 	OPT_STRING(0, "graph-function", &symbol_conf.graph_function, "symbol[,symbol...]",
3582 			"Only print symbols and callees with --call-trace/--call-ret-trace"),
3583 	OPT_STRING(0, "stop-bt", &symbol_conf.bt_stop_list_str, "symbol[,symbol...]",
3584 		   "Stop display of callgraph at these symbols"),
3585 	OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
3586 	OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
3587 		   "only display events for these comms"),
3588 	OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
3589 		   "only consider symbols in these pids"),
3590 	OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
3591 		   "only consider symbols in these tids"),
3592 	OPT_UINTEGER(0, "max-stack", &scripting_max_stack,
3593 		     "Set the maximum stack depth when parsing the callchain, "
3594 		     "anything beyond the specified depth will be ignored. "
3595 		     "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
3596 	OPT_BOOLEAN(0, "reltime", &reltime, "Show time stamps relative to start"),
3597 	OPT_BOOLEAN(0, "deltatime", &deltatime, "Show time stamps relative to previous event"),
3598 	OPT_BOOLEAN('I', "show-info", &show_full_info,
3599 		    "display extended information from perf.data file"),
3600 	OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
3601 		    "Show the path of [kernel.kallsyms]"),
3602 	OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
3603 		    "Show the fork/comm/exit events"),
3604 	OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
3605 		    "Show the mmap events"),
3606 	OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
3607 		    "Show context switch events (if recorded)"),
3608 	OPT_BOOLEAN('\0', "show-namespace-events", &script.show_namespace_events,
3609 		    "Show namespace events (if recorded)"),
3610 	OPT_BOOLEAN('\0', "show-cgroup-events", &script.show_cgroup_events,
3611 		    "Show cgroup events (if recorded)"),
3612 	OPT_BOOLEAN('\0', "show-lost-events", &script.show_lost_events,
3613 		    "Show lost events (if recorded)"),
3614 	OPT_BOOLEAN('\0', "show-round-events", &script.show_round_events,
3615 		    "Show round events (if recorded)"),
3616 	OPT_BOOLEAN('\0', "show-bpf-events", &script.show_bpf_events,
3617 		    "Show bpf related events (if recorded)"),
3618 	OPT_BOOLEAN('\0', "show-text-poke-events", &script.show_text_poke_events,
3619 		    "Show text poke related events (if recorded)"),
3620 	OPT_BOOLEAN('\0', "per-event-dump", &script.per_event_dump,
3621 		    "Dump trace output to files named by the monitored events"),
3622 	OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
3623 	OPT_INTEGER(0, "max-blocks", &max_blocks,
3624 		    "Maximum number of code blocks to dump with brstackinsn"),
3625 	OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs,
3626 		    "Use 9 decimal places when displaying time"),
3627 	OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
3628 			    "Instruction Tracing options\n" ITRACE_HELP,
3629 			    itrace_parse_synth_opts),
3630 	OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
3631 			"Show full source file name path for source lines"),
3632 	OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
3633 			"Enable symbol demangling"),
3634 	OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
3635 			"Enable kernel symbol demangling"),
3636 	OPT_STRING(0, "time", &script.time_str, "str",
3637 		   "Time span of interest (start,stop)"),
3638 	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
3639 		    "Show inline function"),
3640 	OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
3641 		   "guest mount directory under which every guest os"
3642 		   " instance has a subdir"),
3643 	OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
3644 		   "file", "file saving guest os vmlinux"),
3645 	OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
3646 		   "file", "file saving guest os /proc/kallsyms"),
3647 	OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
3648 		   "file", "file saving guest os /proc/modules"),
3649 	OPT_BOOLEAN('\0', "stitch-lbr", &script.stitch_lbr,
3650 		    "Enable LBR callgraph stitching approach"),
3651 	OPTS_EVSWITCH(&script.evswitch),
3652 	OPT_END()
3653 	};
3654 	const char * const script_subcommands[] = { "record", "report", NULL };
3655 	const char *script_usage[] = {
3656 		"perf script [<options>]",
3657 		"perf script [<options>] record <script> [<record-options>] <command>",
3658 		"perf script [<options>] report <script> [script-args]",
3659 		"perf script [<options>] <script> [<record-options>] <command>",
3660 		"perf script [<options>] <top-script> [script-args]",
3661 		NULL
3662 	};
3663 
3664 	perf_set_singlethreaded();
3665 
3666 	setup_scripting();
3667 
3668 	argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
3669 			     PARSE_OPT_STOP_AT_NON_OPTION);
3670 
3671 	if (symbol_conf.guestmount ||
3672 	    symbol_conf.default_guest_vmlinux_name ||
3673 	    symbol_conf.default_guest_kallsyms ||
3674 	    symbol_conf.default_guest_modules) {
3675 		/*
3676 		 * Enable guest sample processing.
3677 		 */
3678 		perf_guest = true;
3679 	}
3680 
3681 	data.path  = input_name;
3682 	data.force = symbol_conf.force;
3683 
3684 	if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
3685 		rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
3686 		if (!rec_script_path)
3687 			return cmd_record(argc, argv);
3688 	}
3689 
3690 	if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
3691 		rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
3692 		if (!rep_script_path) {
3693 			fprintf(stderr,
3694 				"Please specify a valid report script"
3695 				"(see 'perf script -l' for listing)\n");
3696 			return -1;
3697 		}
3698 	}
3699 
3700 	if (reltime && deltatime) {
3701 		fprintf(stderr,
3702 			"reltime and deltatime - the two don't get along well. "
3703 			"Please limit to --reltime or --deltatime.\n");
3704 		return -1;
3705 	}
3706 
3707 	if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
3708 	    itrace_synth_opts.callchain_sz > scripting_max_stack)
3709 		scripting_max_stack = itrace_synth_opts.callchain_sz;
3710 
3711 	/* make sure PERF_EXEC_PATH is set for scripts */
3712 	set_argv_exec_path(get_argv_exec_path());
3713 
3714 	if (argc && !script_name && !rec_script_path && !rep_script_path) {
3715 		int live_pipe[2];
3716 		int rep_args;
3717 		pid_t pid;
3718 
3719 		rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
3720 		rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
3721 
3722 		if (!rec_script_path && !rep_script_path) {
3723 			usage_with_options_msg(script_usage, options,
3724 				"Couldn't find script `%s'\n\n See perf"
3725 				" script -l for available scripts.\n", argv[0]);
3726 		}
3727 
3728 		if (is_top_script(argv[0])) {
3729 			rep_args = argc - 1;
3730 		} else {
3731 			int rec_args;
3732 
3733 			rep_args = has_required_arg(rep_script_path);
3734 			rec_args = (argc - 1) - rep_args;
3735 			if (rec_args < 0) {
3736 				usage_with_options_msg(script_usage, options,
3737 					"`%s' script requires options."
3738 					"\n\n See perf script -l for available "
3739 					"scripts and options.\n", argv[0]);
3740 			}
3741 		}
3742 
3743 		if (pipe(live_pipe) < 0) {
3744 			perror("failed to create pipe");
3745 			return -1;
3746 		}
3747 
3748 		pid = fork();
3749 		if (pid < 0) {
3750 			perror("failed to fork");
3751 			return -1;
3752 		}
3753 
3754 		if (!pid) {
3755 			j = 0;
3756 
3757 			dup2(live_pipe[1], 1);
3758 			close(live_pipe[0]);
3759 
3760 			if (is_top_script(argv[0])) {
3761 				system_wide = true;
3762 			} else if (!system_wide) {
3763 				if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
3764 					err = -1;
3765 					goto out;
3766 				}
3767 			}
3768 
3769 			__argv = malloc((argc + 6) * sizeof(const char *));
3770 			if (!__argv) {
3771 				pr_err("malloc failed\n");
3772 				err = -ENOMEM;
3773 				goto out;
3774 			}
3775 
3776 			__argv[j++] = "/bin/sh";
3777 			__argv[j++] = rec_script_path;
3778 			if (system_wide)
3779 				__argv[j++] = "-a";
3780 			__argv[j++] = "-q";
3781 			__argv[j++] = "-o";
3782 			__argv[j++] = "-";
3783 			for (i = rep_args + 1; i < argc; i++)
3784 				__argv[j++] = argv[i];
3785 			__argv[j++] = NULL;
3786 
3787 			execvp("/bin/sh", (char **)__argv);
3788 			free(__argv);
3789 			exit(-1);
3790 		}
3791 
3792 		dup2(live_pipe[0], 0);
3793 		close(live_pipe[1]);
3794 
3795 		__argv = malloc((argc + 4) * sizeof(const char *));
3796 		if (!__argv) {
3797 			pr_err("malloc failed\n");
3798 			err = -ENOMEM;
3799 			goto out;
3800 		}
3801 
3802 		j = 0;
3803 		__argv[j++] = "/bin/sh";
3804 		__argv[j++] = rep_script_path;
3805 		for (i = 1; i < rep_args + 1; i++)
3806 			__argv[j++] = argv[i];
3807 		__argv[j++] = "-i";
3808 		__argv[j++] = "-";
3809 		__argv[j++] = NULL;
3810 
3811 		execvp("/bin/sh", (char **)__argv);
3812 		free(__argv);
3813 		exit(-1);
3814 	}
3815 
3816 	if (rec_script_path)
3817 		script_path = rec_script_path;
3818 	if (rep_script_path)
3819 		script_path = rep_script_path;
3820 
3821 	if (script_path) {
3822 		j = 0;
3823 
3824 		if (!rec_script_path)
3825 			system_wide = false;
3826 		else if (!system_wide) {
3827 			if (have_cmd(argc - 1, &argv[1]) != 0) {
3828 				err = -1;
3829 				goto out;
3830 			}
3831 		}
3832 
3833 		__argv = malloc((argc + 2) * sizeof(const char *));
3834 		if (!__argv) {
3835 			pr_err("malloc failed\n");
3836 			err = -ENOMEM;
3837 			goto out;
3838 		}
3839 
3840 		__argv[j++] = "/bin/sh";
3841 		__argv[j++] = script_path;
3842 		if (system_wide)
3843 			__argv[j++] = "-a";
3844 		for (i = 2; i < argc; i++)
3845 			__argv[j++] = argv[i];
3846 		__argv[j++] = NULL;
3847 
3848 		execvp("/bin/sh", (char **)__argv);
3849 		free(__argv);
3850 		exit(-1);
3851 	}
3852 
3853 	if (!script_name) {
3854 		setup_pager();
3855 		use_browser = 0;
3856 	}
3857 
3858 	session = perf_session__new(&data, false, &script.tool);
3859 	if (IS_ERR(session))
3860 		return PTR_ERR(session);
3861 
3862 	if (header || header_only) {
3863 		script.tool.show_feat_hdr = SHOW_FEAT_HEADER;
3864 		perf_session__fprintf_info(session, stdout, show_full_info);
3865 		if (header_only)
3866 			goto out_delete;
3867 	}
3868 	if (show_full_info)
3869 		script.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
3870 
3871 	if (symbol__init(&session->header.env) < 0)
3872 		goto out_delete;
3873 
3874 	uname(&uts);
3875 	if (data.is_pipe ||  /* assume pipe_mode indicates native_arch */
3876 	    !strcmp(uts.machine, session->header.env.arch) ||
3877 	    (!strcmp(uts.machine, "x86_64") &&
3878 	     !strcmp(session->header.env.arch, "i386")))
3879 		native_arch = true;
3880 
3881 	script.session = session;
3882 	script__setup_sample_type(&script);
3883 
3884 	if ((output[PERF_TYPE_HARDWARE].fields & PERF_OUTPUT_CALLINDENT) ||
3885 	    symbol_conf.graph_function)
3886 		itrace_synth_opts.thread_stack = true;
3887 
3888 	session->itrace_synth_opts = &itrace_synth_opts;
3889 
3890 	if (cpu_list) {
3891 		err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
3892 		if (err < 0)
3893 			goto out_delete;
3894 		itrace_synth_opts.cpu_bitmap = cpu_bitmap;
3895 	}
3896 
3897 	if (!no_callchain)
3898 		symbol_conf.use_callchain = true;
3899 	else
3900 		symbol_conf.use_callchain = false;
3901 
3902 	if (session->tevent.pevent &&
3903 	    tep_set_function_resolver(session->tevent.pevent,
3904 				      machine__resolve_kernel_addr,
3905 				      &session->machines.host) < 0) {
3906 		pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
3907 		err = -1;
3908 		goto out_delete;
3909 	}
3910 
3911 	if (generate_script_lang) {
3912 		struct stat perf_stat;
3913 		int input;
3914 
3915 		if (output_set_by_user()) {
3916 			fprintf(stderr,
3917 				"custom fields not supported for generated scripts");
3918 			err = -EINVAL;
3919 			goto out_delete;
3920 		}
3921 
3922 		input = open(data.path, O_RDONLY);	/* input_name */
3923 		if (input < 0) {
3924 			err = -errno;
3925 			perror("failed to open file");
3926 			goto out_delete;
3927 		}
3928 
3929 		err = fstat(input, &perf_stat);
3930 		if (err < 0) {
3931 			perror("failed to stat file");
3932 			goto out_delete;
3933 		}
3934 
3935 		if (!perf_stat.st_size) {
3936 			fprintf(stderr, "zero-sized file, nothing to do!\n");
3937 			goto out_delete;
3938 		}
3939 
3940 		scripting_ops = script_spec__lookup(generate_script_lang);
3941 		if (!scripting_ops) {
3942 			fprintf(stderr, "invalid language specifier");
3943 			err = -ENOENT;
3944 			goto out_delete;
3945 		}
3946 
3947 		err = scripting_ops->generate_script(session->tevent.pevent,
3948 						     "perf-script");
3949 		goto out_delete;
3950 	}
3951 
3952 	if (script_name) {
3953 		err = scripting_ops->start_script(script_name, argc, argv);
3954 		if (err)
3955 			goto out_delete;
3956 		pr_debug("perf script started with script %s\n\n", script_name);
3957 		script_started = true;
3958 	}
3959 
3960 
3961 	err = perf_session__check_output_opt(session);
3962 	if (err < 0)
3963 		goto out_delete;
3964 
3965 	if (script.time_str) {
3966 		err = perf_time__parse_for_ranges_reltime(script.time_str, session,
3967 						  &script.ptime_range,
3968 						  &script.range_size,
3969 						  &script.range_num,
3970 						  reltime);
3971 		if (err < 0)
3972 			goto out_delete;
3973 
3974 		itrace_synth_opts__set_time_range(&itrace_synth_opts,
3975 						  script.ptime_range,
3976 						  script.range_num);
3977 	}
3978 
3979 	err = evswitch__init(&script.evswitch, session->evlist, stderr);
3980 	if (err)
3981 		goto out_delete;
3982 
3983 	if (zstd_init(&(session->zstd_data), 0) < 0)
3984 		pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
3985 
3986 	err = __cmd_script(&script);
3987 
3988 	flush_scripting();
3989 
3990 out_delete:
3991 	if (script.ptime_range) {
3992 		itrace_synth_opts__clear_time_range(&itrace_synth_opts);
3993 		zfree(&script.ptime_range);
3994 	}
3995 
3996 	evlist__free_stats(session->evlist);
3997 	perf_session__delete(session);
3998 
3999 	if (script_started)
4000 		cleanup_scripting();
4001 out:
4002 	return err;
4003 }
4004