| 1 | #include "builtin.h" |
| 2 | |
| 3 | #include "perf.h" |
| 4 | #include "util/cache.h" |
| 5 | #include "util/debug.h" |
| 6 | #include "util/exec_cmd.h" |
| 7 | #include "util/header.h" |
| 8 | #include "util/parse-options.h" |
| 9 | #include "util/session.h" |
| 10 | #include "util/tool.h" |
| 11 | #include "util/symbol.h" |
| 12 | #include "util/thread.h" |
| 13 | #include "util/trace-event.h" |
| 14 | #include "util/util.h" |
| 15 | #include "util/evlist.h" |
| 16 | #include "util/evsel.h" |
| 17 | #include <linux/bitmap.h> |
| 18 | |
| 19 | static char const *script_name; |
| 20 | static char const *generate_script_lang; |
| 21 | static bool debug_mode; |
| 22 | static u64 last_timestamp; |
| 23 | static u64 nr_unordered; |
| 24 | extern const struct option record_options[]; |
| 25 | static bool no_callchain; |
| 26 | static bool show_full_info; |
| 27 | static bool system_wide; |
| 28 | static const char *cpu_list; |
| 29 | static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); |
| 30 | |
| 31 | enum perf_output_field { |
| 32 | PERF_OUTPUT_COMM = 1U << 0, |
| 33 | PERF_OUTPUT_TID = 1U << 1, |
| 34 | PERF_OUTPUT_PID = 1U << 2, |
| 35 | PERF_OUTPUT_TIME = 1U << 3, |
| 36 | PERF_OUTPUT_CPU = 1U << 4, |
| 37 | PERF_OUTPUT_EVNAME = 1U << 5, |
| 38 | PERF_OUTPUT_TRACE = 1U << 6, |
| 39 | PERF_OUTPUT_IP = 1U << 7, |
| 40 | PERF_OUTPUT_SYM = 1U << 8, |
| 41 | PERF_OUTPUT_DSO = 1U << 9, |
| 42 | PERF_OUTPUT_ADDR = 1U << 10, |
| 43 | PERF_OUTPUT_SYMOFFSET = 1U << 11, |
| 44 | }; |
| 45 | |
| 46 | struct output_option { |
| 47 | const char *str; |
| 48 | enum perf_output_field field; |
| 49 | } all_output_options[] = { |
| 50 | {.str = "comm", .field = PERF_OUTPUT_COMM}, |
| 51 | {.str = "tid", .field = PERF_OUTPUT_TID}, |
| 52 | {.str = "pid", .field = PERF_OUTPUT_PID}, |
| 53 | {.str = "time", .field = PERF_OUTPUT_TIME}, |
| 54 | {.str = "cpu", .field = PERF_OUTPUT_CPU}, |
| 55 | {.str = "event", .field = PERF_OUTPUT_EVNAME}, |
| 56 | {.str = "trace", .field = PERF_OUTPUT_TRACE}, |
| 57 | {.str = "ip", .field = PERF_OUTPUT_IP}, |
| 58 | {.str = "sym", .field = PERF_OUTPUT_SYM}, |
| 59 | {.str = "dso", .field = PERF_OUTPUT_DSO}, |
| 60 | {.str = "addr", .field = PERF_OUTPUT_ADDR}, |
| 61 | {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, |
| 62 | }; |
| 63 | |
| 64 | /* default set to maintain compatibility with current format */ |
| 65 | static struct { |
| 66 | bool user_set; |
| 67 | bool wildcard_set; |
| 68 | u64 fields; |
| 69 | u64 invalid_fields; |
| 70 | } output[PERF_TYPE_MAX] = { |
| 71 | |
| 72 | [PERF_TYPE_HARDWARE] = { |
| 73 | .user_set = false, |
| 74 | |
| 75 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| 76 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| 77 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| 78 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
| 79 | |
| 80 | .invalid_fields = PERF_OUTPUT_TRACE, |
| 81 | }, |
| 82 | |
| 83 | [PERF_TYPE_SOFTWARE] = { |
| 84 | .user_set = false, |
| 85 | |
| 86 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| 87 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| 88 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| 89 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
| 90 | |
| 91 | .invalid_fields = PERF_OUTPUT_TRACE, |
| 92 | }, |
| 93 | |
| 94 | [PERF_TYPE_TRACEPOINT] = { |
| 95 | .user_set = false, |
| 96 | |
| 97 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| 98 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| 99 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, |
| 100 | }, |
| 101 | |
| 102 | [PERF_TYPE_RAW] = { |
| 103 | .user_set = false, |
| 104 | |
| 105 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
| 106 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
| 107 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
| 108 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
| 109 | |
| 110 | .invalid_fields = PERF_OUTPUT_TRACE, |
| 111 | }, |
| 112 | }; |
| 113 | |
| 114 | static bool output_set_by_user(void) |
| 115 | { |
| 116 | int j; |
| 117 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| 118 | if (output[j].user_set) |
| 119 | return true; |
| 120 | } |
| 121 | return false; |
| 122 | } |
| 123 | |
| 124 | static const char *output_field2str(enum perf_output_field field) |
| 125 | { |
| 126 | int i, imax = ARRAY_SIZE(all_output_options); |
| 127 | const char *str = ""; |
| 128 | |
| 129 | for (i = 0; i < imax; ++i) { |
| 130 | if (all_output_options[i].field == field) { |
| 131 | str = all_output_options[i].str; |
| 132 | break; |
| 133 | } |
| 134 | } |
| 135 | return str; |
| 136 | } |
| 137 | |
| 138 | #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) |
| 139 | |
| 140 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
| 141 | u64 sample_type, const char *sample_msg, |
| 142 | enum perf_output_field field) |
| 143 | { |
| 144 | struct perf_event_attr *attr = &evsel->attr; |
| 145 | int type = attr->type; |
| 146 | const char *evname; |
| 147 | |
| 148 | if (attr->sample_type & sample_type) |
| 149 | return 0; |
| 150 | |
| 151 | if (output[type].user_set) { |
| 152 | evname = perf_evsel__name(evsel); |
| 153 | pr_err("Samples for '%s' event do not have %s attribute set. " |
| 154 | "Cannot print '%s' field.\n", |
| 155 | evname, sample_msg, output_field2str(field)); |
| 156 | return -1; |
| 157 | } |
| 158 | |
| 159 | /* user did not ask for it explicitly so remove from the default list */ |
| 160 | output[type].fields &= ~field; |
| 161 | evname = perf_evsel__name(evsel); |
| 162 | pr_debug("Samples for '%s' event do not have %s attribute set. " |
| 163 | "Skipping '%s' field.\n", |
| 164 | evname, sample_msg, output_field2str(field)); |
| 165 | |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | static int perf_evsel__check_attr(struct perf_evsel *evsel, |
| 170 | struct perf_session *session) |
| 171 | { |
| 172 | struct perf_event_attr *attr = &evsel->attr; |
| 173 | |
| 174 | if (PRINT_FIELD(TRACE) && |
| 175 | !perf_session__has_traces(session, "record -R")) |
| 176 | return -EINVAL; |
| 177 | |
| 178 | if (PRINT_FIELD(IP)) { |
| 179 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", |
| 180 | PERF_OUTPUT_IP)) |
| 181 | return -EINVAL; |
| 182 | |
| 183 | if (!no_callchain && |
| 184 | !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) |
| 185 | symbol_conf.use_callchain = false; |
| 186 | } |
| 187 | |
| 188 | if (PRINT_FIELD(ADDR) && |
| 189 | perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", |
| 190 | PERF_OUTPUT_ADDR)) |
| 191 | return -EINVAL; |
| 192 | |
| 193 | if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
| 194 | pr_err("Display of symbols requested but neither sample IP nor " |
| 195 | "sample address\nis selected. Hence, no addresses to convert " |
| 196 | "to symbols.\n"); |
| 197 | return -EINVAL; |
| 198 | } |
| 199 | if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { |
| 200 | pr_err("Display of offsets requested but symbol is not" |
| 201 | "selected.\n"); |
| 202 | return -EINVAL; |
| 203 | } |
| 204 | if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
| 205 | pr_err("Display of DSO requested but neither sample IP nor " |
| 206 | "sample address\nis selected. Hence, no addresses to convert " |
| 207 | "to DSO.\n"); |
| 208 | return -EINVAL; |
| 209 | } |
| 210 | |
| 211 | if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && |
| 212 | perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", |
| 213 | PERF_OUTPUT_TID|PERF_OUTPUT_PID)) |
| 214 | return -EINVAL; |
| 215 | |
| 216 | if (PRINT_FIELD(TIME) && |
| 217 | perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", |
| 218 | PERF_OUTPUT_TIME)) |
| 219 | return -EINVAL; |
| 220 | |
| 221 | if (PRINT_FIELD(CPU) && |
| 222 | perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", |
| 223 | PERF_OUTPUT_CPU)) |
| 224 | return -EINVAL; |
| 225 | |
| 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | /* |
| 230 | * verify all user requested events exist and the samples |
| 231 | * have the expected data |
| 232 | */ |
| 233 | static int perf_session__check_output_opt(struct perf_session *session) |
| 234 | { |
| 235 | int j; |
| 236 | struct perf_evsel *evsel; |
| 237 | |
| 238 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| 239 | evsel = perf_session__find_first_evtype(session, j); |
| 240 | |
| 241 | /* |
| 242 | * even if fields is set to 0 (ie., show nothing) event must |
| 243 | * exist if user explicitly includes it on the command line |
| 244 | */ |
| 245 | if (!evsel && output[j].user_set && !output[j].wildcard_set) { |
| 246 | pr_err("%s events do not exist. " |
| 247 | "Remove corresponding -f option to proceed.\n", |
| 248 | event_type(j)); |
| 249 | return -1; |
| 250 | } |
| 251 | |
| 252 | if (evsel && output[j].fields && |
| 253 | perf_evsel__check_attr(evsel, session)) |
| 254 | return -1; |
| 255 | } |
| 256 | |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static void print_sample_start(struct perf_sample *sample, |
| 261 | struct thread *thread, |
| 262 | struct perf_evsel *evsel) |
| 263 | { |
| 264 | struct perf_event_attr *attr = &evsel->attr; |
| 265 | const char *evname = NULL; |
| 266 | unsigned long secs; |
| 267 | unsigned long usecs; |
| 268 | unsigned long long nsecs; |
| 269 | |
| 270 | if (PRINT_FIELD(COMM)) { |
| 271 | if (latency_format) |
| 272 | printf("%8.8s ", thread->comm); |
| 273 | else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) |
| 274 | printf("%s ", thread->comm); |
| 275 | else |
| 276 | printf("%16s ", thread->comm); |
| 277 | } |
| 278 | |
| 279 | if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) |
| 280 | printf("%5d/%-5d ", sample->pid, sample->tid); |
| 281 | else if (PRINT_FIELD(PID)) |
| 282 | printf("%5d ", sample->pid); |
| 283 | else if (PRINT_FIELD(TID)) |
| 284 | printf("%5d ", sample->tid); |
| 285 | |
| 286 | if (PRINT_FIELD(CPU)) { |
| 287 | if (latency_format) |
| 288 | printf("%3d ", sample->cpu); |
| 289 | else |
| 290 | printf("[%03d] ", sample->cpu); |
| 291 | } |
| 292 | |
| 293 | if (PRINT_FIELD(TIME)) { |
| 294 | nsecs = sample->time; |
| 295 | secs = nsecs / NSECS_PER_SEC; |
| 296 | nsecs -= secs * NSECS_PER_SEC; |
| 297 | usecs = nsecs / NSECS_PER_USEC; |
| 298 | printf("%5lu.%06lu: ", secs, usecs); |
| 299 | } |
| 300 | |
| 301 | if (PRINT_FIELD(EVNAME)) { |
| 302 | evname = perf_evsel__name(evsel); |
| 303 | printf("%s: ", evname ? evname : "[unknown]"); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | static bool is_bts_event(struct perf_event_attr *attr) |
| 308 | { |
| 309 | return ((attr->type == PERF_TYPE_HARDWARE) && |
| 310 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && |
| 311 | (attr->sample_period == 1)); |
| 312 | } |
| 313 | |
| 314 | static bool sample_addr_correlates_sym(struct perf_event_attr *attr) |
| 315 | { |
| 316 | if ((attr->type == PERF_TYPE_SOFTWARE) && |
| 317 | ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) || |
| 318 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) || |
| 319 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))) |
| 320 | return true; |
| 321 | |
| 322 | if (is_bts_event(attr)) |
| 323 | return true; |
| 324 | |
| 325 | return false; |
| 326 | } |
| 327 | |
| 328 | static void print_sample_addr(union perf_event *event, |
| 329 | struct perf_sample *sample, |
| 330 | struct machine *machine, |
| 331 | struct thread *thread, |
| 332 | struct perf_event_attr *attr) |
| 333 | { |
| 334 | struct addr_location al; |
| 335 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 336 | |
| 337 | printf("%16" PRIx64, sample->addr); |
| 338 | |
| 339 | if (!sample_addr_correlates_sym(attr)) |
| 340 | return; |
| 341 | |
| 342 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
| 343 | sample->addr, &al); |
| 344 | if (!al.map) |
| 345 | thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, |
| 346 | sample->addr, &al); |
| 347 | |
| 348 | al.cpu = sample->cpu; |
| 349 | al.sym = NULL; |
| 350 | |
| 351 | if (al.map) |
| 352 | al.sym = map__find_symbol(al.map, al.addr, NULL); |
| 353 | |
| 354 | if (PRINT_FIELD(SYM)) { |
| 355 | printf(" "); |
| 356 | if (PRINT_FIELD(SYMOFFSET)) |
| 357 | symbol__fprintf_symname_offs(al.sym, &al, stdout); |
| 358 | else |
| 359 | symbol__fprintf_symname(al.sym, stdout); |
| 360 | } |
| 361 | |
| 362 | if (PRINT_FIELD(DSO)) { |
| 363 | printf(" ("); |
| 364 | map__fprintf_dsoname(al.map, stdout); |
| 365 | printf(")"); |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | static void print_sample_bts(union perf_event *event, |
| 370 | struct perf_sample *sample, |
| 371 | struct perf_evsel *evsel, |
| 372 | struct machine *machine, |
| 373 | struct thread *thread) |
| 374 | { |
| 375 | struct perf_event_attr *attr = &evsel->attr; |
| 376 | |
| 377 | /* print branch_from information */ |
| 378 | if (PRINT_FIELD(IP)) { |
| 379 | if (!symbol_conf.use_callchain) |
| 380 | printf(" "); |
| 381 | else |
| 382 | printf("\n"); |
| 383 | perf_evsel__print_ip(evsel, event, sample, machine, |
| 384 | PRINT_FIELD(SYM), PRINT_FIELD(DSO), |
| 385 | PRINT_FIELD(SYMOFFSET)); |
| 386 | } |
| 387 | |
| 388 | printf(" => "); |
| 389 | |
| 390 | /* print branch_to information */ |
| 391 | if (PRINT_FIELD(ADDR)) |
| 392 | print_sample_addr(event, sample, machine, thread, attr); |
| 393 | |
| 394 | printf("\n"); |
| 395 | } |
| 396 | |
| 397 | static void process_event(union perf_event *event, struct perf_sample *sample, |
| 398 | struct perf_evsel *evsel, struct machine *machine, |
| 399 | struct addr_location *al) |
| 400 | { |
| 401 | struct perf_event_attr *attr = &evsel->attr; |
| 402 | struct thread *thread = al->thread; |
| 403 | |
| 404 | if (output[attr->type].fields == 0) |
| 405 | return; |
| 406 | |
| 407 | print_sample_start(sample, thread, evsel); |
| 408 | |
| 409 | if (is_bts_event(attr)) { |
| 410 | print_sample_bts(event, sample, evsel, machine, thread); |
| 411 | return; |
| 412 | } |
| 413 | |
| 414 | if (PRINT_FIELD(TRACE)) |
| 415 | event_format__print(evsel->tp_format, sample->cpu, |
| 416 | sample->raw_data, sample->raw_size); |
| 417 | if (PRINT_FIELD(ADDR)) |
| 418 | print_sample_addr(event, sample, machine, thread, attr); |
| 419 | |
| 420 | if (PRINT_FIELD(IP)) { |
| 421 | if (!symbol_conf.use_callchain) |
| 422 | printf(" "); |
| 423 | else |
| 424 | printf("\n"); |
| 425 | perf_evsel__print_ip(evsel, event, sample, machine, |
| 426 | PRINT_FIELD(SYM), PRINT_FIELD(DSO), |
| 427 | PRINT_FIELD(SYMOFFSET)); |
| 428 | } |
| 429 | |
| 430 | printf("\n"); |
| 431 | } |
| 432 | |
| 433 | static int default_start_script(const char *script __unused, |
| 434 | int argc __unused, |
| 435 | const char **argv __unused) |
| 436 | { |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | static int default_stop_script(void) |
| 441 | { |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | static int default_generate_script(struct pevent *pevent __unused, |
| 446 | const char *outfile __unused) |
| 447 | { |
| 448 | return 0; |
| 449 | } |
| 450 | |
| 451 | static struct scripting_ops default_scripting_ops = { |
| 452 | .start_script = default_start_script, |
| 453 | .stop_script = default_stop_script, |
| 454 | .process_event = process_event, |
| 455 | .generate_script = default_generate_script, |
| 456 | }; |
| 457 | |
| 458 | static struct scripting_ops *scripting_ops; |
| 459 | |
| 460 | static void setup_scripting(void) |
| 461 | { |
| 462 | setup_perl_scripting(); |
| 463 | setup_python_scripting(); |
| 464 | |
| 465 | scripting_ops = &default_scripting_ops; |
| 466 | } |
| 467 | |
| 468 | static int cleanup_scripting(void) |
| 469 | { |
| 470 | pr_debug("\nperf script stopped\n"); |
| 471 | |
| 472 | return scripting_ops->stop_script(); |
| 473 | } |
| 474 | |
| 475 | static const char *input_name; |
| 476 | |
| 477 | static int process_sample_event(struct perf_tool *tool __used, |
| 478 | union perf_event *event, |
| 479 | struct perf_sample *sample, |
| 480 | struct perf_evsel *evsel, |
| 481 | struct machine *machine) |
| 482 | { |
| 483 | struct addr_location al; |
| 484 | struct thread *thread = machine__findnew_thread(machine, event->ip.tid); |
| 485 | |
| 486 | if (thread == NULL) { |
| 487 | pr_debug("problem processing %d event, skipping it.\n", |
| 488 | event->header.type); |
| 489 | return -1; |
| 490 | } |
| 491 | |
| 492 | if (debug_mode) { |
| 493 | if (sample->time < last_timestamp) { |
| 494 | pr_err("Samples misordered, previous: %" PRIu64 |
| 495 | " this: %" PRIu64 "\n", last_timestamp, |
| 496 | sample->time); |
| 497 | nr_unordered++; |
| 498 | } |
| 499 | last_timestamp = sample->time; |
| 500 | return 0; |
| 501 | } |
| 502 | |
| 503 | if (perf_event__preprocess_sample(event, machine, &al, sample, 0) < 0) { |
| 504 | pr_err("problem processing %d event, skipping it.\n", |
| 505 | event->header.type); |
| 506 | return -1; |
| 507 | } |
| 508 | |
| 509 | if (al.filtered) |
| 510 | return 0; |
| 511 | |
| 512 | if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) |
| 513 | return 0; |
| 514 | |
| 515 | scripting_ops->process_event(event, sample, evsel, machine, &al); |
| 516 | |
| 517 | evsel->hists.stats.total_period += sample->period; |
| 518 | return 0; |
| 519 | } |
| 520 | |
| 521 | static struct perf_tool perf_script = { |
| 522 | .sample = process_sample_event, |
| 523 | .mmap = perf_event__process_mmap, |
| 524 | .comm = perf_event__process_comm, |
| 525 | .exit = perf_event__process_task, |
| 526 | .fork = perf_event__process_task, |
| 527 | .attr = perf_event__process_attr, |
| 528 | .event_type = perf_event__process_event_type, |
| 529 | .tracing_data = perf_event__process_tracing_data, |
| 530 | .build_id = perf_event__process_build_id, |
| 531 | .ordered_samples = true, |
| 532 | .ordering_requires_timestamps = true, |
| 533 | }; |
| 534 | |
| 535 | extern volatile int session_done; |
| 536 | |
| 537 | static void sig_handler(int sig __unused) |
| 538 | { |
| 539 | session_done = 1; |
| 540 | } |
| 541 | |
| 542 | static int __cmd_script(struct perf_session *session) |
| 543 | { |
| 544 | int ret; |
| 545 | |
| 546 | signal(SIGINT, sig_handler); |
| 547 | |
| 548 | ret = perf_session__process_events(session, &perf_script); |
| 549 | |
| 550 | if (debug_mode) |
| 551 | pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); |
| 552 | |
| 553 | return ret; |
| 554 | } |
| 555 | |
| 556 | struct script_spec { |
| 557 | struct list_head node; |
| 558 | struct scripting_ops *ops; |
| 559 | char spec[0]; |
| 560 | }; |
| 561 | |
| 562 | static LIST_HEAD(script_specs); |
| 563 | |
| 564 | static struct script_spec *script_spec__new(const char *spec, |
| 565 | struct scripting_ops *ops) |
| 566 | { |
| 567 | struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); |
| 568 | |
| 569 | if (s != NULL) { |
| 570 | strcpy(s->spec, spec); |
| 571 | s->ops = ops; |
| 572 | } |
| 573 | |
| 574 | return s; |
| 575 | } |
| 576 | |
| 577 | static void script_spec__add(struct script_spec *s) |
| 578 | { |
| 579 | list_add_tail(&s->node, &script_specs); |
| 580 | } |
| 581 | |
| 582 | static struct script_spec *script_spec__find(const char *spec) |
| 583 | { |
| 584 | struct script_spec *s; |
| 585 | |
| 586 | list_for_each_entry(s, &script_specs, node) |
| 587 | if (strcasecmp(s->spec, spec) == 0) |
| 588 | return s; |
| 589 | return NULL; |
| 590 | } |
| 591 | |
| 592 | static struct script_spec *script_spec__findnew(const char *spec, |
| 593 | struct scripting_ops *ops) |
| 594 | { |
| 595 | struct script_spec *s = script_spec__find(spec); |
| 596 | |
| 597 | if (s) |
| 598 | return s; |
| 599 | |
| 600 | s = script_spec__new(spec, ops); |
| 601 | if (!s) |
| 602 | return NULL; |
| 603 | |
| 604 | script_spec__add(s); |
| 605 | |
| 606 | return s; |
| 607 | } |
| 608 | |
| 609 | int script_spec_register(const char *spec, struct scripting_ops *ops) |
| 610 | { |
| 611 | struct script_spec *s; |
| 612 | |
| 613 | s = script_spec__find(spec); |
| 614 | if (s) |
| 615 | return -1; |
| 616 | |
| 617 | s = script_spec__findnew(spec, ops); |
| 618 | if (!s) |
| 619 | return -1; |
| 620 | |
| 621 | return 0; |
| 622 | } |
| 623 | |
| 624 | static struct scripting_ops *script_spec__lookup(const char *spec) |
| 625 | { |
| 626 | struct script_spec *s = script_spec__find(spec); |
| 627 | if (!s) |
| 628 | return NULL; |
| 629 | |
| 630 | return s->ops; |
| 631 | } |
| 632 | |
| 633 | static void list_available_languages(void) |
| 634 | { |
| 635 | struct script_spec *s; |
| 636 | |
| 637 | fprintf(stderr, "\n"); |
| 638 | fprintf(stderr, "Scripting language extensions (used in " |
| 639 | "perf script -s [spec:]script.[spec]):\n\n"); |
| 640 | |
| 641 | list_for_each_entry(s, &script_specs, node) |
| 642 | fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); |
| 643 | |
| 644 | fprintf(stderr, "\n"); |
| 645 | } |
| 646 | |
| 647 | static int parse_scriptname(const struct option *opt __used, |
| 648 | const char *str, int unset __used) |
| 649 | { |
| 650 | char spec[PATH_MAX]; |
| 651 | const char *script, *ext; |
| 652 | int len; |
| 653 | |
| 654 | if (strcmp(str, "lang") == 0) { |
| 655 | list_available_languages(); |
| 656 | exit(0); |
| 657 | } |
| 658 | |
| 659 | script = strchr(str, ':'); |
| 660 | if (script) { |
| 661 | len = script - str; |
| 662 | if (len >= PATH_MAX) { |
| 663 | fprintf(stderr, "invalid language specifier"); |
| 664 | return -1; |
| 665 | } |
| 666 | strncpy(spec, str, len); |
| 667 | spec[len] = '\0'; |
| 668 | scripting_ops = script_spec__lookup(spec); |
| 669 | if (!scripting_ops) { |
| 670 | fprintf(stderr, "invalid language specifier"); |
| 671 | return -1; |
| 672 | } |
| 673 | script++; |
| 674 | } else { |
| 675 | script = str; |
| 676 | ext = strrchr(script, '.'); |
| 677 | if (!ext) { |
| 678 | fprintf(stderr, "invalid script extension"); |
| 679 | return -1; |
| 680 | } |
| 681 | scripting_ops = script_spec__lookup(++ext); |
| 682 | if (!scripting_ops) { |
| 683 | fprintf(stderr, "invalid script extension"); |
| 684 | return -1; |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | script_name = strdup(script); |
| 689 | |
| 690 | return 0; |
| 691 | } |
| 692 | |
| 693 | static int parse_output_fields(const struct option *opt __used, |
| 694 | const char *arg, int unset __used) |
| 695 | { |
| 696 | char *tok; |
| 697 | int i, imax = sizeof(all_output_options) / sizeof(struct output_option); |
| 698 | int j; |
| 699 | int rc = 0; |
| 700 | char *str = strdup(arg); |
| 701 | int type = -1; |
| 702 | |
| 703 | if (!str) |
| 704 | return -ENOMEM; |
| 705 | |
| 706 | /* first word can state for which event type the user is specifying |
| 707 | * the fields. If no type exists, the specified fields apply to all |
| 708 | * event types found in the file minus the invalid fields for a type. |
| 709 | */ |
| 710 | tok = strchr(str, ':'); |
| 711 | if (tok) { |
| 712 | *tok = '\0'; |
| 713 | tok++; |
| 714 | if (!strcmp(str, "hw")) |
| 715 | type = PERF_TYPE_HARDWARE; |
| 716 | else if (!strcmp(str, "sw")) |
| 717 | type = PERF_TYPE_SOFTWARE; |
| 718 | else if (!strcmp(str, "trace")) |
| 719 | type = PERF_TYPE_TRACEPOINT; |
| 720 | else if (!strcmp(str, "raw")) |
| 721 | type = PERF_TYPE_RAW; |
| 722 | else { |
| 723 | fprintf(stderr, "Invalid event type in field string.\n"); |
| 724 | rc = -EINVAL; |
| 725 | goto out; |
| 726 | } |
| 727 | |
| 728 | if (output[type].user_set) |
| 729 | pr_warning("Overriding previous field request for %s events.\n", |
| 730 | event_type(type)); |
| 731 | |
| 732 | output[type].fields = 0; |
| 733 | output[type].user_set = true; |
| 734 | output[type].wildcard_set = false; |
| 735 | |
| 736 | } else { |
| 737 | tok = str; |
| 738 | if (strlen(str) == 0) { |
| 739 | fprintf(stderr, |
| 740 | "Cannot set fields to 'none' for all event types.\n"); |
| 741 | rc = -EINVAL; |
| 742 | goto out; |
| 743 | } |
| 744 | |
| 745 | if (output_set_by_user()) |
| 746 | pr_warning("Overriding previous field request for all events.\n"); |
| 747 | |
| 748 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| 749 | output[j].fields = 0; |
| 750 | output[j].user_set = true; |
| 751 | output[j].wildcard_set = true; |
| 752 | } |
| 753 | } |
| 754 | |
| 755 | tok = strtok(tok, ","); |
| 756 | while (tok) { |
| 757 | for (i = 0; i < imax; ++i) { |
| 758 | if (strcmp(tok, all_output_options[i].str) == 0) |
| 759 | break; |
| 760 | } |
| 761 | if (i == imax) { |
| 762 | fprintf(stderr, "Invalid field requested.\n"); |
| 763 | rc = -EINVAL; |
| 764 | goto out; |
| 765 | } |
| 766 | |
| 767 | if (type == -1) { |
| 768 | /* add user option to all events types for |
| 769 | * which it is valid |
| 770 | */ |
| 771 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
| 772 | if (output[j].invalid_fields & all_output_options[i].field) { |
| 773 | pr_warning("\'%s\' not valid for %s events. Ignoring.\n", |
| 774 | all_output_options[i].str, event_type(j)); |
| 775 | } else |
| 776 | output[j].fields |= all_output_options[i].field; |
| 777 | } |
| 778 | } else { |
| 779 | if (output[type].invalid_fields & all_output_options[i].field) { |
| 780 | fprintf(stderr, "\'%s\' not valid for %s events.\n", |
| 781 | all_output_options[i].str, event_type(type)); |
| 782 | |
| 783 | rc = -EINVAL; |
| 784 | goto out; |
| 785 | } |
| 786 | output[type].fields |= all_output_options[i].field; |
| 787 | } |
| 788 | |
| 789 | tok = strtok(NULL, ","); |
| 790 | } |
| 791 | |
| 792 | if (type >= 0) { |
| 793 | if (output[type].fields == 0) { |
| 794 | pr_debug("No fields requested for %s type. " |
| 795 | "Events will not be displayed.\n", event_type(type)); |
| 796 | } |
| 797 | } |
| 798 | |
| 799 | out: |
| 800 | free(str); |
| 801 | return rc; |
| 802 | } |
| 803 | |
| 804 | /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ |
| 805 | static int is_directory(const char *base_path, const struct dirent *dent) |
| 806 | { |
| 807 | char path[PATH_MAX]; |
| 808 | struct stat st; |
| 809 | |
| 810 | sprintf(path, "%s/%s", base_path, dent->d_name); |
| 811 | if (stat(path, &st)) |
| 812 | return 0; |
| 813 | |
| 814 | return S_ISDIR(st.st_mode); |
| 815 | } |
| 816 | |
| 817 | #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ |
| 818 | while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ |
| 819 | lang_next) \ |
| 820 | if ((lang_dirent.d_type == DT_DIR || \ |
| 821 | (lang_dirent.d_type == DT_UNKNOWN && \ |
| 822 | is_directory(scripts_path, &lang_dirent))) && \ |
| 823 | (strcmp(lang_dirent.d_name, ".")) && \ |
| 824 | (strcmp(lang_dirent.d_name, ".."))) |
| 825 | |
| 826 | #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ |
| 827 | while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ |
| 828 | script_next) \ |
| 829 | if (script_dirent.d_type != DT_DIR && \ |
| 830 | (script_dirent.d_type != DT_UNKNOWN || \ |
| 831 | !is_directory(lang_path, &script_dirent))) |
| 832 | |
| 833 | |
| 834 | #define RECORD_SUFFIX "-record" |
| 835 | #define REPORT_SUFFIX "-report" |
| 836 | |
| 837 | struct script_desc { |
| 838 | struct list_head node; |
| 839 | char *name; |
| 840 | char *half_liner; |
| 841 | char *args; |
| 842 | }; |
| 843 | |
| 844 | static LIST_HEAD(script_descs); |
| 845 | |
| 846 | static struct script_desc *script_desc__new(const char *name) |
| 847 | { |
| 848 | struct script_desc *s = zalloc(sizeof(*s)); |
| 849 | |
| 850 | if (s != NULL && name) |
| 851 | s->name = strdup(name); |
| 852 | |
| 853 | return s; |
| 854 | } |
| 855 | |
| 856 | static void script_desc__delete(struct script_desc *s) |
| 857 | { |
| 858 | free(s->name); |
| 859 | free(s->half_liner); |
| 860 | free(s->args); |
| 861 | free(s); |
| 862 | } |
| 863 | |
| 864 | static void script_desc__add(struct script_desc *s) |
| 865 | { |
| 866 | list_add_tail(&s->node, &script_descs); |
| 867 | } |
| 868 | |
| 869 | static struct script_desc *script_desc__find(const char *name) |
| 870 | { |
| 871 | struct script_desc *s; |
| 872 | |
| 873 | list_for_each_entry(s, &script_descs, node) |
| 874 | if (strcasecmp(s->name, name) == 0) |
| 875 | return s; |
| 876 | return NULL; |
| 877 | } |
| 878 | |
| 879 | static struct script_desc *script_desc__findnew(const char *name) |
| 880 | { |
| 881 | struct script_desc *s = script_desc__find(name); |
| 882 | |
| 883 | if (s) |
| 884 | return s; |
| 885 | |
| 886 | s = script_desc__new(name); |
| 887 | if (!s) |
| 888 | goto out_delete_desc; |
| 889 | |
| 890 | script_desc__add(s); |
| 891 | |
| 892 | return s; |
| 893 | |
| 894 | out_delete_desc: |
| 895 | script_desc__delete(s); |
| 896 | |
| 897 | return NULL; |
| 898 | } |
| 899 | |
| 900 | static const char *ends_with(const char *str, const char *suffix) |
| 901 | { |
| 902 | size_t suffix_len = strlen(suffix); |
| 903 | const char *p = str; |
| 904 | |
| 905 | if (strlen(str) > suffix_len) { |
| 906 | p = str + strlen(str) - suffix_len; |
| 907 | if (!strncmp(p, suffix, suffix_len)) |
| 908 | return p; |
| 909 | } |
| 910 | |
| 911 | return NULL; |
| 912 | } |
| 913 | |
| 914 | static char *ltrim(char *str) |
| 915 | { |
| 916 | int len = strlen(str); |
| 917 | |
| 918 | while (len && isspace(*str)) { |
| 919 | len--; |
| 920 | str++; |
| 921 | } |
| 922 | |
| 923 | return str; |
| 924 | } |
| 925 | |
| 926 | static int read_script_info(struct script_desc *desc, const char *filename) |
| 927 | { |
| 928 | char line[BUFSIZ], *p; |
| 929 | FILE *fp; |
| 930 | |
| 931 | fp = fopen(filename, "r"); |
| 932 | if (!fp) |
| 933 | return -1; |
| 934 | |
| 935 | while (fgets(line, sizeof(line), fp)) { |
| 936 | p = ltrim(line); |
| 937 | if (strlen(p) == 0) |
| 938 | continue; |
| 939 | if (*p != '#') |
| 940 | continue; |
| 941 | p++; |
| 942 | if (strlen(p) && *p == '!') |
| 943 | continue; |
| 944 | |
| 945 | p = ltrim(p); |
| 946 | if (strlen(p) && p[strlen(p) - 1] == '\n') |
| 947 | p[strlen(p) - 1] = '\0'; |
| 948 | |
| 949 | if (!strncmp(p, "description:", strlen("description:"))) { |
| 950 | p += strlen("description:"); |
| 951 | desc->half_liner = strdup(ltrim(p)); |
| 952 | continue; |
| 953 | } |
| 954 | |
| 955 | if (!strncmp(p, "args:", strlen("args:"))) { |
| 956 | p += strlen("args:"); |
| 957 | desc->args = strdup(ltrim(p)); |
| 958 | continue; |
| 959 | } |
| 960 | } |
| 961 | |
| 962 | fclose(fp); |
| 963 | |
| 964 | return 0; |
| 965 | } |
| 966 | |
| 967 | static char *get_script_root(struct dirent *script_dirent, const char *suffix) |
| 968 | { |
| 969 | char *script_root, *str; |
| 970 | |
| 971 | script_root = strdup(script_dirent->d_name); |
| 972 | if (!script_root) |
| 973 | return NULL; |
| 974 | |
| 975 | str = (char *)ends_with(script_root, suffix); |
| 976 | if (!str) { |
| 977 | free(script_root); |
| 978 | return NULL; |
| 979 | } |
| 980 | |
| 981 | *str = '\0'; |
| 982 | return script_root; |
| 983 | } |
| 984 | |
| 985 | static int list_available_scripts(const struct option *opt __used, |
| 986 | const char *s __used, int unset __used) |
| 987 | { |
| 988 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
| 989 | char scripts_path[MAXPATHLEN]; |
| 990 | DIR *scripts_dir, *lang_dir; |
| 991 | char script_path[MAXPATHLEN]; |
| 992 | char lang_path[MAXPATHLEN]; |
| 993 | struct script_desc *desc; |
| 994 | char first_half[BUFSIZ]; |
| 995 | char *script_root; |
| 996 | |
| 997 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
| 998 | |
| 999 | scripts_dir = opendir(scripts_path); |
| 1000 | if (!scripts_dir) |
| 1001 | return -1; |
| 1002 | |
| 1003 | for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
| 1004 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
| 1005 | lang_dirent.d_name); |
| 1006 | lang_dir = opendir(lang_path); |
| 1007 | if (!lang_dir) |
| 1008 | continue; |
| 1009 | |
| 1010 | for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
| 1011 | script_root = get_script_root(&script_dirent, REPORT_SUFFIX); |
| 1012 | if (script_root) { |
| 1013 | desc = script_desc__findnew(script_root); |
| 1014 | snprintf(script_path, MAXPATHLEN, "%s/%s", |
| 1015 | lang_path, script_dirent.d_name); |
| 1016 | read_script_info(desc, script_path); |
| 1017 | free(script_root); |
| 1018 | } |
| 1019 | } |
| 1020 | } |
| 1021 | |
| 1022 | fprintf(stdout, "List of available trace scripts:\n"); |
| 1023 | list_for_each_entry(desc, &script_descs, node) { |
| 1024 | sprintf(first_half, "%s %s", desc->name, |
| 1025 | desc->args ? desc->args : ""); |
| 1026 | fprintf(stdout, " %-36s %s\n", first_half, |
| 1027 | desc->half_liner ? desc->half_liner : ""); |
| 1028 | } |
| 1029 | |
| 1030 | exit(0); |
| 1031 | } |
| 1032 | |
| 1033 | static char *get_script_path(const char *script_root, const char *suffix) |
| 1034 | { |
| 1035 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
| 1036 | char scripts_path[MAXPATHLEN]; |
| 1037 | char script_path[MAXPATHLEN]; |
| 1038 | DIR *scripts_dir, *lang_dir; |
| 1039 | char lang_path[MAXPATHLEN]; |
| 1040 | char *__script_root; |
| 1041 | |
| 1042 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
| 1043 | |
| 1044 | scripts_dir = opendir(scripts_path); |
| 1045 | if (!scripts_dir) |
| 1046 | return NULL; |
| 1047 | |
| 1048 | for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
| 1049 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
| 1050 | lang_dirent.d_name); |
| 1051 | lang_dir = opendir(lang_path); |
| 1052 | if (!lang_dir) |
| 1053 | continue; |
| 1054 | |
| 1055 | for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
| 1056 | __script_root = get_script_root(&script_dirent, suffix); |
| 1057 | if (__script_root && !strcmp(script_root, __script_root)) { |
| 1058 | free(__script_root); |
| 1059 | closedir(lang_dir); |
| 1060 | closedir(scripts_dir); |
| 1061 | snprintf(script_path, MAXPATHLEN, "%s/%s", |
| 1062 | lang_path, script_dirent.d_name); |
| 1063 | return strdup(script_path); |
| 1064 | } |
| 1065 | free(__script_root); |
| 1066 | } |
| 1067 | closedir(lang_dir); |
| 1068 | } |
| 1069 | closedir(scripts_dir); |
| 1070 | |
| 1071 | return NULL; |
| 1072 | } |
| 1073 | |
| 1074 | static bool is_top_script(const char *script_path) |
| 1075 | { |
| 1076 | return ends_with(script_path, "top") == NULL ? false : true; |
| 1077 | } |
| 1078 | |
| 1079 | static int has_required_arg(char *script_path) |
| 1080 | { |
| 1081 | struct script_desc *desc; |
| 1082 | int n_args = 0; |
| 1083 | char *p; |
| 1084 | |
| 1085 | desc = script_desc__new(NULL); |
| 1086 | |
| 1087 | if (read_script_info(desc, script_path)) |
| 1088 | goto out; |
| 1089 | |
| 1090 | if (!desc->args) |
| 1091 | goto out; |
| 1092 | |
| 1093 | for (p = desc->args; *p; p++) |
| 1094 | if (*p == '<') |
| 1095 | n_args++; |
| 1096 | out: |
| 1097 | script_desc__delete(desc); |
| 1098 | |
| 1099 | return n_args; |
| 1100 | } |
| 1101 | |
| 1102 | static const char * const script_usage[] = { |
| 1103 | "perf script [<options>]", |
| 1104 | "perf script [<options>] record <script> [<record-options>] <command>", |
| 1105 | "perf script [<options>] report <script> [script-args]", |
| 1106 | "perf script [<options>] <script> [<record-options>] <command>", |
| 1107 | "perf script [<options>] <top-script> [script-args]", |
| 1108 | NULL |
| 1109 | }; |
| 1110 | |
| 1111 | static const struct option options[] = { |
| 1112 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1113 | "dump raw trace in ASCII"), |
| 1114 | OPT_INCR('v', "verbose", &verbose, |
| 1115 | "be more verbose (show symbol address, etc)"), |
| 1116 | OPT_BOOLEAN('L', "Latency", &latency_format, |
| 1117 | "show latency attributes (irqs/preemption disabled, etc)"), |
| 1118 | OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", |
| 1119 | list_available_scripts), |
| 1120 | OPT_CALLBACK('s', "script", NULL, "name", |
| 1121 | "script file name (lang:script name, script name, or *)", |
| 1122 | parse_scriptname), |
| 1123 | OPT_STRING('g', "gen-script", &generate_script_lang, "lang", |
| 1124 | "generate perf-script.xx script in specified language"), |
| 1125 | OPT_STRING('i', "input", &input_name, "file", |
| 1126 | "input file name"), |
| 1127 | OPT_BOOLEAN('d', "debug-mode", &debug_mode, |
| 1128 | "do various checks like samples ordering and lost events"), |
| 1129 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
| 1130 | "file", "vmlinux pathname"), |
| 1131 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
| 1132 | "file", "kallsyms pathname"), |
| 1133 | OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, |
| 1134 | "When printing symbols do not display call chain"), |
| 1135 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
| 1136 | "Look for files with symbols relative to this directory"), |
| 1137 | OPT_CALLBACK('f', "fields", NULL, "str", |
| 1138 | "comma separated output fields prepend with 'type:'. " |
| 1139 | "Valid types: hw,sw,trace,raw. " |
| 1140 | "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," |
| 1141 | "addr,symoff", |
| 1142 | parse_output_fields), |
| 1143 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
| 1144 | "system-wide collection from all CPUs"), |
| 1145 | OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), |
| 1146 | OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
| 1147 | "only display events for these comms"), |
| 1148 | OPT_BOOLEAN('I', "show-info", &show_full_info, |
| 1149 | "display extended information from perf.data file"), |
| 1150 | OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, |
| 1151 | "Show the path of [kernel.kallsyms]"), |
| 1152 | |
| 1153 | OPT_END() |
| 1154 | }; |
| 1155 | |
| 1156 | static bool have_cmd(int argc, const char **argv) |
| 1157 | { |
| 1158 | char **__argv = malloc(sizeof(const char *) * argc); |
| 1159 | |
| 1160 | if (!__argv) |
| 1161 | die("malloc"); |
| 1162 | memcpy(__argv, argv, sizeof(const char *) * argc); |
| 1163 | argc = parse_options(argc, (const char **)__argv, record_options, |
| 1164 | NULL, PARSE_OPT_STOP_AT_NON_OPTION); |
| 1165 | free(__argv); |
| 1166 | |
| 1167 | return argc != 0; |
| 1168 | } |
| 1169 | |
| 1170 | int cmd_script(int argc, const char **argv, const char *prefix __used) |
| 1171 | { |
| 1172 | char *rec_script_path = NULL; |
| 1173 | char *rep_script_path = NULL; |
| 1174 | struct perf_session *session; |
| 1175 | char *script_path = NULL; |
| 1176 | const char **__argv; |
| 1177 | int i, j, err; |
| 1178 | |
| 1179 | setup_scripting(); |
| 1180 | |
| 1181 | argc = parse_options(argc, argv, options, script_usage, |
| 1182 | PARSE_OPT_STOP_AT_NON_OPTION); |
| 1183 | |
| 1184 | if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { |
| 1185 | rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); |
| 1186 | if (!rec_script_path) |
| 1187 | return cmd_record(argc, argv, NULL); |
| 1188 | } |
| 1189 | |
| 1190 | if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { |
| 1191 | rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); |
| 1192 | if (!rep_script_path) { |
| 1193 | fprintf(stderr, |
| 1194 | "Please specify a valid report script" |
| 1195 | "(see 'perf script -l' for listing)\n"); |
| 1196 | return -1; |
| 1197 | } |
| 1198 | } |
| 1199 | |
| 1200 | /* make sure PERF_EXEC_PATH is set for scripts */ |
| 1201 | perf_set_argv_exec_path(perf_exec_path()); |
| 1202 | |
| 1203 | if (argc && !script_name && !rec_script_path && !rep_script_path) { |
| 1204 | int live_pipe[2]; |
| 1205 | int rep_args; |
| 1206 | pid_t pid; |
| 1207 | |
| 1208 | rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); |
| 1209 | rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); |
| 1210 | |
| 1211 | if (!rec_script_path && !rep_script_path) { |
| 1212 | fprintf(stderr, " Couldn't find script %s\n\n See perf" |
| 1213 | " script -l for available scripts.\n", argv[0]); |
| 1214 | usage_with_options(script_usage, options); |
| 1215 | } |
| 1216 | |
| 1217 | if (is_top_script(argv[0])) { |
| 1218 | rep_args = argc - 1; |
| 1219 | } else { |
| 1220 | int rec_args; |
| 1221 | |
| 1222 | rep_args = has_required_arg(rep_script_path); |
| 1223 | rec_args = (argc - 1) - rep_args; |
| 1224 | if (rec_args < 0) { |
| 1225 | fprintf(stderr, " %s script requires options." |
| 1226 | "\n\n See perf script -l for available " |
| 1227 | "scripts and options.\n", argv[0]); |
| 1228 | usage_with_options(script_usage, options); |
| 1229 | } |
| 1230 | } |
| 1231 | |
| 1232 | if (pipe(live_pipe) < 0) { |
| 1233 | perror("failed to create pipe"); |
| 1234 | exit(-1); |
| 1235 | } |
| 1236 | |
| 1237 | pid = fork(); |
| 1238 | if (pid < 0) { |
| 1239 | perror("failed to fork"); |
| 1240 | exit(-1); |
| 1241 | } |
| 1242 | |
| 1243 | if (!pid) { |
| 1244 | j = 0; |
| 1245 | |
| 1246 | dup2(live_pipe[1], 1); |
| 1247 | close(live_pipe[0]); |
| 1248 | |
| 1249 | if (is_top_script(argv[0])) { |
| 1250 | system_wide = true; |
| 1251 | } else if (!system_wide) { |
| 1252 | system_wide = !have_cmd(argc - rep_args, |
| 1253 | &argv[rep_args]); |
| 1254 | } |
| 1255 | |
| 1256 | __argv = malloc((argc + 6) * sizeof(const char *)); |
| 1257 | if (!__argv) |
| 1258 | die("malloc"); |
| 1259 | |
| 1260 | __argv[j++] = "/bin/sh"; |
| 1261 | __argv[j++] = rec_script_path; |
| 1262 | if (system_wide) |
| 1263 | __argv[j++] = "-a"; |
| 1264 | __argv[j++] = "-q"; |
| 1265 | __argv[j++] = "-o"; |
| 1266 | __argv[j++] = "-"; |
| 1267 | for (i = rep_args + 1; i < argc; i++) |
| 1268 | __argv[j++] = argv[i]; |
| 1269 | __argv[j++] = NULL; |
| 1270 | |
| 1271 | execvp("/bin/sh", (char **)__argv); |
| 1272 | free(__argv); |
| 1273 | exit(-1); |
| 1274 | } |
| 1275 | |
| 1276 | dup2(live_pipe[0], 0); |
| 1277 | close(live_pipe[1]); |
| 1278 | |
| 1279 | __argv = malloc((argc + 4) * sizeof(const char *)); |
| 1280 | if (!__argv) |
| 1281 | die("malloc"); |
| 1282 | j = 0; |
| 1283 | __argv[j++] = "/bin/sh"; |
| 1284 | __argv[j++] = rep_script_path; |
| 1285 | for (i = 1; i < rep_args + 1; i++) |
| 1286 | __argv[j++] = argv[i]; |
| 1287 | __argv[j++] = "-i"; |
| 1288 | __argv[j++] = "-"; |
| 1289 | __argv[j++] = NULL; |
| 1290 | |
| 1291 | execvp("/bin/sh", (char **)__argv); |
| 1292 | free(__argv); |
| 1293 | exit(-1); |
| 1294 | } |
| 1295 | |
| 1296 | if (rec_script_path) |
| 1297 | script_path = rec_script_path; |
| 1298 | if (rep_script_path) |
| 1299 | script_path = rep_script_path; |
| 1300 | |
| 1301 | if (script_path) { |
| 1302 | j = 0; |
| 1303 | |
| 1304 | if (!rec_script_path) |
| 1305 | system_wide = false; |
| 1306 | else if (!system_wide) |
| 1307 | system_wide = !have_cmd(argc - 1, &argv[1]); |
| 1308 | |
| 1309 | __argv = malloc((argc + 2) * sizeof(const char *)); |
| 1310 | if (!__argv) |
| 1311 | die("malloc"); |
| 1312 | __argv[j++] = "/bin/sh"; |
| 1313 | __argv[j++] = script_path; |
| 1314 | if (system_wide) |
| 1315 | __argv[j++] = "-a"; |
| 1316 | for (i = 2; i < argc; i++) |
| 1317 | __argv[j++] = argv[i]; |
| 1318 | __argv[j++] = NULL; |
| 1319 | |
| 1320 | execvp("/bin/sh", (char **)__argv); |
| 1321 | free(__argv); |
| 1322 | exit(-1); |
| 1323 | } |
| 1324 | |
| 1325 | if (symbol__init() < 0) |
| 1326 | return -1; |
| 1327 | if (!script_name) |
| 1328 | setup_pager(); |
| 1329 | |
| 1330 | session = perf_session__new(input_name, O_RDONLY, 0, false, |
| 1331 | &perf_script); |
| 1332 | if (session == NULL) |
| 1333 | return -ENOMEM; |
| 1334 | |
| 1335 | if (cpu_list) { |
| 1336 | if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) |
| 1337 | return -1; |
| 1338 | } |
| 1339 | |
| 1340 | perf_session__fprintf_info(session, stdout, show_full_info); |
| 1341 | |
| 1342 | if (!no_callchain) |
| 1343 | symbol_conf.use_callchain = true; |
| 1344 | else |
| 1345 | symbol_conf.use_callchain = false; |
| 1346 | |
| 1347 | if (generate_script_lang) { |
| 1348 | struct stat perf_stat; |
| 1349 | int input; |
| 1350 | |
| 1351 | if (output_set_by_user()) { |
| 1352 | fprintf(stderr, |
| 1353 | "custom fields not supported for generated scripts"); |
| 1354 | return -1; |
| 1355 | } |
| 1356 | |
| 1357 | input = open(session->filename, O_RDONLY); /* input_name */ |
| 1358 | if (input < 0) { |
| 1359 | perror("failed to open file"); |
| 1360 | exit(-1); |
| 1361 | } |
| 1362 | |
| 1363 | err = fstat(input, &perf_stat); |
| 1364 | if (err < 0) { |
| 1365 | perror("failed to stat file"); |
| 1366 | exit(-1); |
| 1367 | } |
| 1368 | |
| 1369 | if (!perf_stat.st_size) { |
| 1370 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
| 1371 | exit(0); |
| 1372 | } |
| 1373 | |
| 1374 | scripting_ops = script_spec__lookup(generate_script_lang); |
| 1375 | if (!scripting_ops) { |
| 1376 | fprintf(stderr, "invalid language specifier"); |
| 1377 | return -1; |
| 1378 | } |
| 1379 | |
| 1380 | err = scripting_ops->generate_script(session->pevent, |
| 1381 | "perf-script"); |
| 1382 | goto out; |
| 1383 | } |
| 1384 | |
| 1385 | if (script_name) { |
| 1386 | err = scripting_ops->start_script(script_name, argc, argv); |
| 1387 | if (err) |
| 1388 | goto out; |
| 1389 | pr_debug("perf script started with script %s\n\n", script_name); |
| 1390 | } |
| 1391 | |
| 1392 | |
| 1393 | err = perf_session__check_output_opt(session); |
| 1394 | if (err < 0) |
| 1395 | goto out; |
| 1396 | |
| 1397 | err = __cmd_script(session); |
| 1398 | |
| 1399 | perf_session__delete(session); |
| 1400 | cleanup_scripting(); |
| 1401 | out: |
| 1402 | return err; |
| 1403 | } |