tools/perf/builtin-script.c

   1 #include "builtin.h"
   2
   3 #include "perf.h"
   4 #include "util/cache.h"
   5 #include "util/debug.h"
   6 #include <subcmd/exec-cmd.h>
   7 #include "util/header.h"
   8 #include <subcmd/parse-options.h>
   9 #include "util/perf_regs.h"
  10 #include "util/session.h"
  11 #include "util/tool.h"
  12 #include "util/symbol.h"
  13 #include "util/thread.h"
  14 #include "util/trace-event.h"
  15 #include "util/util.h"
  16 #include "util/evlist.h"
  17 #include "util/evsel.h"
  18 #include "util/sort.h"
  19 #include "util/data.h"
  20 #include "util/auxtrace.h"
  21 #include "util/cpumap.h"
  22 #include "util/thread_map.h"
  23 #include "util/stat.h"
  24 #include "util/string2.h"
  25 #include "util/thread-stack.h"
  26 #include "util/time-utils.h"
  27 #include "print_binary.h"
  28 #include <linux/bitmap.h>
  29 #include <linux/kernel.h>
  30 #include <linux/stringify.h>
  31 #include <linux/time64.h>
  32 #include "asm/bug.h"
  33 #include "util/mem-events.h"
  34 #include "util/dump-insn.h"
  35 #include <dirent.h>
  36 #include <errno.h>
  37 #include <inttypes.h>
  38 #include <signal.h>
  39 #include <sys/param.h>
  40 #include <sys/types.h>
  41 #include <sys/stat.h>
  42 #include <unistd.h>
  43
  44 #include "sane_ctype.h"
  45
  46 static char const               *script_name;
  47 static char const               *generate_script_lang;
  48 static bool                     debug_mode;
  49 static u64                      last_timestamp;
  50 static u64                      nr_unordered;
  51 static bool                     no_callchain;
  52 static bool                     latency_format;
  53 static bool                     system_wide;
  54 static bool                     print_flags;
  55 static bool                     nanosecs;
  56 static const char               *cpu_list;
  57 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  58 static struct perf_stat_config  stat_config;
  59 static int                      max_blocks;
  60
  61 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
  62
  63 enum perf_output_field {
  64         PERF_OUTPUT_COMM            = 1U << 0,
  65         PERF_OUTPUT_TID             = 1U << 1,
  66         PERF_OUTPUT_PID             = 1U << 2,
  67         PERF_OUTPUT_TIME            = 1U << 3,
  68         PERF_OUTPUT_CPU             = 1U << 4,
  69         PERF_OUTPUT_EVNAME          = 1U << 5,
  70         PERF_OUTPUT_TRACE           = 1U << 6,
  71         PERF_OUTPUT_IP              = 1U << 7,
  72         PERF_OUTPUT_SYM             = 1U << 8,
  73         PERF_OUTPUT_DSO             = 1U << 9,
  74         PERF_OUTPUT_ADDR            = 1U << 10,
  75         PERF_OUTPUT_SYMOFFSET       = 1U << 11,
  76         PERF_OUTPUT_SRCLINE         = 1U << 12,
  77         PERF_OUTPUT_PERIOD          = 1U << 13,
  78         PERF_OUTPUT_IREGS           = 1U << 14,
  79         PERF_OUTPUT_BRSTACK         = 1U << 15,
  80         PERF_OUTPUT_BRSTACKSYM      = 1U << 16,
  81         PERF_OUTPUT_DATA_SRC        = 1U << 17,
  82         PERF_OUTPUT_WEIGHT          = 1U << 18,
  83         PERF_OUTPUT_BPF_OUTPUT      = 1U << 19,
  84         PERF_OUTPUT_CALLINDENT      = 1U << 20,
  85         PERF_OUTPUT_INSN            = 1U << 21,
  86         PERF_OUTPUT_INSNLEN         = 1U << 22,
  87         PERF_OUTPUT_BRSTACKINSN     = 1U << 23,
  88 };
  89
  90 struct output_option {
  91         const char *str;
  92         enum perf_output_field field;
  93 } all_output_options[] = {
  94         {.str = "comm",  .field = PERF_OUTPUT_COMM},
  95         {.str = "tid",   .field = PERF_OUTPUT_TID},
  96         {.str = "pid",   .field = PERF_OUTPUT_PID},
  97         {.str = "time",  .field = PERF_OUTPUT_TIME},
  98         {.str = "cpu",   .field = PERF_OUTPUT_CPU},
  99         {.str = "event", .field = PERF_OUTPUT_EVNAME},
 100         {.str = "trace", .field = PERF_OUTPUT_TRACE},
 101         {.str = "ip",    .field = PERF_OUTPUT_IP},
 102         {.str = "sym",   .field = PERF_OUTPUT_SYM},
 103         {.str = "dso",   .field = PERF_OUTPUT_DSO},
 104         {.str = "addr",  .field = PERF_OUTPUT_ADDR},
 105         {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
 106         {.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
 107         {.str = "period", .field = PERF_OUTPUT_PERIOD},
 108         {.str = "iregs", .field = PERF_OUTPUT_IREGS},
 109         {.str = "brstack", .field = PERF_OUTPUT_BRSTACK},
 110         {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM},
 111         {.str = "data_src", .field = PERF_OUTPUT_DATA_SRC},
 112         {.str = "weight",   .field = PERF_OUTPUT_WEIGHT},
 113         {.str = "bpf-output",   .field = PERF_OUTPUT_BPF_OUTPUT},
 114         {.str = "callindent", .field = PERF_OUTPUT_CALLINDENT},
 115         {.str = "insn", .field = PERF_OUTPUT_INSN},
 116         {.str = "insnlen", .field = PERF_OUTPUT_INSNLEN},
 117         {.str = "brstackinsn", .field = PERF_OUTPUT_BRSTACKINSN},
 118 };
 119
 120 /* default set to maintain compatibility with current format */
 121 static struct {
 122         bool user_set;
 123         bool wildcard_set;
 124         unsigned int print_ip_opts;
 125         u64 fields;
 126         u64 invalid_fields;
 127 } output[PERF_TYPE_MAX] = {
 128
 129         [PERF_TYPE_HARDWARE] = {
 130                 .user_set = false,
 131
 132                 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
 133                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
 134                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
 135                               PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
 136                               PERF_OUTPUT_PERIOD,
 137
 138                 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
 139         },
 140
 141         [PERF_TYPE_SOFTWARE] = {
 142                 .user_set = false,
 143
 144                 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
 145                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
 146                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
 147                               PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
 148                               PERF_OUTPUT_PERIOD | PERF_OUTPUT_BPF_OUTPUT,
 149
 150                 .invalid_fields = PERF_OUTPUT_TRACE,
 151         },
 152
 153         [PERF_TYPE_TRACEPOINT] = {
 154                 .user_set = false,
 155
 156                 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
 157                                   PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
 158                                   PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE
 159         },
 160
 161         [PERF_TYPE_RAW] = {
 162                 .user_set = false,
 163
 164                 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
 165                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
 166                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
 167                               PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
 168                               PERF_OUTPUT_PERIOD |  PERF_OUTPUT_ADDR |
 169                               PERF_OUTPUT_DATA_SRC | PERF_OUTPUT_WEIGHT,
 170
 171                 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
 172         },
 173
 174         [PERF_TYPE_BREAKPOINT] = {
 175                 .user_set = false,
 176
 177                 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
 178                               PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
 179                               PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
 180                               PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
 181                               PERF_OUTPUT_PERIOD,
 182
 183                 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
 184         },
 185 };
 186
 187 static bool output_set_by_user(void)
 188 {
 189         int j;
 190         for (j = 0; j < PERF_TYPE_MAX; ++j) {
 191                 if (output[j].user_set)
 192                         return true;
 193         }
 194         return false;
 195 }
 196
 197 static const char *output_field2str(enum perf_output_field field)
 198 {
 199         int i, imax = ARRAY_SIZE(all_output_options);
 200         const char *str = "";
 201
 202         for (i = 0; i < imax; ++i) {
 203                 if (all_output_options[i].field == field) {
 204                         str = all_output_options[i].str;
 205                         break;
 206                 }
 207         }
 208         return str;
 209 }
 210
 211 #define PRINT_FIELD(x)  (output[attr->type].fields & PERF_OUTPUT_##x)
 212
 213 static int perf_evsel__do_check_stype(struct perf_evsel *evsel,
 214                                       u64 sample_type, const char *sample_msg,
 215                                       enum perf_output_field field,
 216                                       bool allow_user_set)
 217 {
 218         struct perf_event_attr *attr = &evsel->attr;
 219         int type = attr->type;
 220         const char *evname;
 221
 222         if (attr->sample_type & sample_type)
 223                 return 0;
 224
 225         if (output[type].user_set) {
 226                 if (allow_user_set)
 227                         return 0;
 228                 evname = perf_evsel__name(evsel);
 229                 pr_err("Samples for '%s' event do not have %s attribute set. "
 230                        "Cannot print '%s' field.\n",
 231                        evname, sample_msg, output_field2str(field));
 232                 return -1;
 233         }
 234
 235         /* user did not ask for it explicitly so remove from the default list */
 236         output[type].fields &= ~field;
 237         evname = perf_evsel__name(evsel);
 238         pr_debug("Samples for '%s' event do not have %s attribute set. "
 239                  "Skipping '%s' field.\n",
 240                  evname, sample_msg, output_field2str(field));
 241
 242         return 0;
 243 }
 244
 245 static int perf_evsel__check_stype(struct perf_evsel *evsel,
 246                                    u64 sample_type, const char *sample_msg,
 247                                    enum perf_output_field field)
 248 {
 249         return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field,
 250                                           false);
 251 }
 252
 253 static int perf_evsel__check_attr(struct perf_evsel *evsel,
 254                                   struct perf_session *session)
 255 {
 256         struct perf_event_attr *attr = &evsel->attr;
 257         bool allow_user_set;
 258
 259         if (perf_header__has_feat(&session->header, HEADER_STAT))
 260                 return 0;
 261
 262         allow_user_set = perf_header__has_feat(&session->header,
 263                                                HEADER_AUXTRACE);
 264
 265         if (PRINT_FIELD(TRACE) &&
 266                 !perf_session__has_traces(session, "record -R"))
 267                 return -EINVAL;
 268
 269         if (PRINT_FIELD(IP)) {
 270                 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
 271                                             PERF_OUTPUT_IP))
 272                         return -EINVAL;
 273         }
 274
 275         if (PRINT_FIELD(ADDR) &&
 276                 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
 277                                            PERF_OUTPUT_ADDR, allow_user_set))
 278                 return -EINVAL;
 279
 280         if (PRINT_FIELD(DATA_SRC) &&
 281                 perf_evsel__check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC",
 282                                         PERF_OUTPUT_DATA_SRC))
 283                 return -EINVAL;
 284
 285         if (PRINT_FIELD(WEIGHT) &&
 286                 perf_evsel__check_stype(evsel, PERF_SAMPLE_WEIGHT, "WEIGHT",
 287                                         PERF_OUTPUT_WEIGHT))
 288                 return -EINVAL;
 289
 290         if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
 291                 pr_err("Display of symbols requested but neither sample IP nor "
 292                            "sample address\nis selected. Hence, no addresses to convert "
 293                        "to symbols.\n");
 294                 return -EINVAL;
 295         }
 296         if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
 297                 pr_err("Display of offsets requested but symbol is not"
 298                        "selected.\n");
 299                 return -EINVAL;
 300         }
 301         if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
 302                 pr_err("Display of DSO requested but neither sample IP nor "
 303                            "sample address\nis selected. Hence, no addresses to convert "
 304                        "to DSO.\n");
 305                 return -EINVAL;
 306         }
 307         if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
 308                 pr_err("Display of source line number requested but sample IP is not\n"
 309                        "selected. Hence, no address to lookup the source line number.\n");
 310                 return -EINVAL;
 311         }
 312         if (PRINT_FIELD(BRSTACKINSN) &&
 313             !(perf_evlist__combined_branch_type(session->evlist) &
 314               PERF_SAMPLE_BRANCH_ANY)) {
 315                 pr_err("Display of branch stack assembler requested, but non all-branch filter set\n"
 316                        "Hint: run 'perf record -b ...'\n");
 317                 return -EINVAL;
 318         }
 319         if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
 320                 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
 321                                         PERF_OUTPUT_TID|PERF_OUTPUT_PID))
 322                 return -EINVAL;
 323
 324         if (PRINT_FIELD(TIME) &&
 325                 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
 326                                         PERF_OUTPUT_TIME))
 327                 return -EINVAL;
 328
 329         if (PRINT_FIELD(CPU) &&
 330                 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
 331                                            PERF_OUTPUT_CPU, allow_user_set))
 332                 return -EINVAL;
 333
 334         if (PRINT_FIELD(PERIOD) &&
 335                 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD",
 336                                         PERF_OUTPUT_PERIOD))
 337                 return -EINVAL;
 338
 339         if (PRINT_FIELD(IREGS) &&
 340                 perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS",
 341                                         PERF_OUTPUT_IREGS))
 342                 return -EINVAL;
 343
 344         return 0;
 345 }
 346
 347 static void set_print_ip_opts(struct perf_event_attr *attr)
 348 {
 349         unsigned int type = attr->type;
 350
 351         output[type].print_ip_opts = 0;
 352         if (PRINT_FIELD(IP))
 353                 output[type].print_ip_opts |= EVSEL__PRINT_IP;
 354
 355         if (PRINT_FIELD(SYM))
 356                 output[type].print_ip_opts |= EVSEL__PRINT_SYM;
 357
 358         if (PRINT_FIELD(DSO))
 359                 output[type].print_ip_opts |= EVSEL__PRINT_DSO;
 360
 361         if (PRINT_FIELD(SYMOFFSET))
 362                 output[type].print_ip_opts |= EVSEL__PRINT_SYMOFFSET;
 363
 364         if (PRINT_FIELD(SRCLINE))
 365                 output[type].print_ip_opts |= EVSEL__PRINT_SRCLINE;
 366 }
 367
 368 /*
 369  * verify all user requested events exist and the samples
 370  * have the expected data
 371  */
 372 static int perf_session__check_output_opt(struct perf_session *session)
 373 {
 374         unsigned int j;
 375         struct perf_evsel *evsel;
 376
 377         for (j = 0; j < PERF_TYPE_MAX; ++j) {
 378                 evsel = perf_session__find_first_evtype(session, j);
 379
 380                 /*
 381                  * even if fields is set to 0 (ie., show nothing) event must
 382                  * exist if user explicitly includes it on the command line
 383                  */
 384                 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
 385                         pr_err("%s events do not exist. "
 386                                "Remove corresponding -f option to proceed.\n",
 387                                event_type(j));
 388                         return -1;
 389                 }
 390
 391                 if (evsel && output[j].fields &&
 392                         perf_evsel__check_attr(evsel, session))
 393                         return -1;
 394
 395                 if (evsel == NULL)
 396                         continue;
 397
 398                 set_print_ip_opts(&evsel->attr);
 399         }
 400
 401         if (!no_callchain) {
 402                 bool use_callchain = false;
 403                 bool not_pipe = false;
 404
 405                 evlist__for_each_entry(session->evlist, evsel) {
 406                         not_pipe = true;
 407                         if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) {
 408                                 use_callchain = true;
 409                                 break;
 410                         }
 411                 }
 412                 if (not_pipe && !use_callchain)
 413                         symbol_conf.use_callchain = false;
 414         }
 415
 416         /*
 417          * set default for tracepoints to print symbols only
 418          * if callchains are present
 419          */
 420         if (symbol_conf.use_callchain &&
 421             !output[PERF_TYPE_TRACEPOINT].user_set) {
 422                 struct perf_event_attr *attr;
 423
 424                 j = PERF_TYPE_TRACEPOINT;
 425
 426                 evlist__for_each_entry(session->evlist, evsel) {
 427                         if (evsel->attr.type != j)
 428                                 continue;
 429
 430                         attr = &evsel->attr;
 431
 432                         if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
 433                                 output[j].fields |= PERF_OUTPUT_IP;
 434                                 output[j].fields |= PERF_OUTPUT_SYM;
 435                                 output[j].fields |= PERF_OUTPUT_DSO;
 436                                 set_print_ip_opts(attr);
 437                                 goto out;
 438                         }
 439                 }
 440         }
 441
 442 out:
 443         return 0;
 444 }
 445
 446 static void print_sample_iregs(struct perf_sample *sample,
 447                           struct perf_event_attr *attr)
 448 {
 449         struct regs_dump *regs = &sample->intr_regs;
 450         uint64_t mask = attr->sample_regs_intr;
 451         unsigned i = 0, r;
 452
 453         if (!regs)
 454                 return;
 455
 456         for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
 457                 u64 val = regs->regs[i++];
 458                 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val);
 459         }
 460 }
 461
 462 static void print_sample_start(struct perf_sample *sample,
 463                                struct thread *thread,
 464                                struct perf_evsel *evsel)
 465 {
 466         struct perf_event_attr *attr = &evsel->attr;
 467         unsigned long secs;
 468         unsigned long long nsecs;
 469
 470         if (PRINT_FIELD(COMM)) {
 471                 if (latency_format)
 472                         printf("%8.8s ", thread__comm_str(thread));
 473                 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
 474                         printf("%s ", thread__comm_str(thread));
 475                 else
 476                         printf("%16s ", thread__comm_str(thread));
 477         }
 478
 479         if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
 480                 printf("%5d/%-5d ", sample->pid, sample->tid);
 481         else if (PRINT_FIELD(PID))
 482                 printf("%5d ", sample->pid);
 483         else if (PRINT_FIELD(TID))
 484                 printf("%5d ", sample->tid);
 485
 486         if (PRINT_FIELD(CPU)) {
 487                 if (latency_format)
 488                         printf("%3d ", sample->cpu);
 489                 else
 490                         printf("[%03d] ", sample->cpu);
 491         }
 492
 493         if (PRINT_FIELD(TIME)) {
 494                 nsecs = sample->time;
 495                 secs = nsecs / NSEC_PER_SEC;
 496                 nsecs -= secs * NSEC_PER_SEC;
 497
 498                 if (nanosecs)
 499                         printf("%5lu.%09llu: ", secs, nsecs);
 500                 else {
 501                         char sample_time[32];
 502                         timestamp__scnprintf_usec(sample->time, sample_time, sizeof(sample_time));
 503                         printf("%12s: ", sample_time);
 504                 }
 505         }
 506 }
 507
 508 static inline char
 509 mispred_str(struct branch_entry *br)
 510 {
 511         if (!(br->flags.mispred  || br->flags.predicted))
 512                 return '-';
 513
 514         return br->flags.predicted ? 'P' : 'M';
 515 }
 516
 517 static void print_sample_brstack(struct perf_sample *sample)
 518 {
 519         struct branch_stack *br = sample->branch_stack;
 520         u64 i;
 521
 522         if (!(br && br->nr))
 523                 return;
 524
 525         for (i = 0; i < br->nr; i++) {
 526                 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ",
 527                         br->entries[i].from,
 528                         br->entries[i].to,
 529                         mispred_str( br->entries + i),
 530                         br->entries[i].flags.in_tx? 'X' : '-',
 531                         br->entries[i].flags.abort? 'A' : '-',
 532                         br->entries[i].flags.cycles);
 533         }
 534 }
 535
 536 static void print_sample_brstacksym(struct perf_sample *sample,
 537                                     struct thread *thread)
 538 {
 539         struct branch_stack *br = sample->branch_stack;
 540         struct addr_location alf, alt;
 541         u64 i, from, to;
 542
 543         if (!(br && br->nr))
 544                 return;
 545
 546         for (i = 0; i < br->nr; i++) {
 547
 548                 memset(&alf, 0, sizeof(alf));
 549                 memset(&alt, 0, sizeof(alt));
 550                 from = br->entries[i].from;
 551                 to   = br->entries[i].to;
 552
 553                 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
 554                 if (alf.map)
 555                         alf.sym = map__find_symbol(alf.map, alf.addr);
 556
 557                 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
 558                 if (alt.map)
 559                         alt.sym = map__find_symbol(alt.map, alt.addr);
 560
 561                 symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
 562                 putchar('/');
 563                 symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
 564                 printf("/%c/%c/%c/%d ",
 565                         mispred_str( br->entries + i),
 566                         br->entries[i].flags.in_tx? 'X' : '-',
 567                         br->entries[i].flags.abort? 'A' : '-',
 568                         br->entries[i].flags.cycles);
 569         }
 570 }
 571
 572 #define MAXBB 16384UL
 573
 574 static int grab_bb(u8 *buffer, u64 start, u64 end,
 575                     struct machine *machine, struct thread *thread,
 576                     bool *is64bit, u8 *cpumode, bool last)
 577 {
 578         long offset, len;
 579         struct addr_location al;
 580         bool kernel;
 581
 582         if (!start || !end)
 583                 return 0;
 584
 585         kernel = machine__kernel_ip(machine, start);
 586         if (kernel)
 587                 *cpumode = PERF_RECORD_MISC_KERNEL;
 588         else
 589                 *cpumode = PERF_RECORD_MISC_USER;
 590
 591         /*
 592          * Block overlaps between kernel and user.
 593          * This can happen due to ring filtering
 594          * On Intel CPUs the entry into the kernel is filtered,
 595          * but the exit is not. Let the caller patch it up.
 596          */
 597         if (kernel != machine__kernel_ip(machine, end)) {
 598                 printf("\tblock %" PRIx64 "-%" PRIx64 " transfers between kernel and user\n",
 599                                 start, end);
 600                 return -ENXIO;
 601         }
 602
 603         memset(&al, 0, sizeof(al));
 604         if (end - start > MAXBB - MAXINSN) {
 605                 if (last)
 606                         printf("\tbrstack does not reach to final jump (%" PRIx64 "-%" PRIx64 ")\n", start, end);
 607                 else
 608                         printf("\tblock %" PRIx64 "-%" PRIx64 " (%" PRIu64 ") too long to dump\n", start, end, end - start);
 609                 return 0;
 610         }
 611
 612         thread__find_addr_map(thread, *cpumode, MAP__FUNCTION, start, &al);
 613         if (!al.map || !al.map->dso) {
 614                 printf("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
 615                 return 0;
 616         }
 617         if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR) {
 618                 printf("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
 619                 return 0;
 620         }
 621
 622         /* Load maps to ensure dso->is_64_bit has been updated */
 623         map__load(al.map);
 624
 625         offset = al.map->map_ip(al.map, start);
 626         len = dso__data_read_offset(al.map->dso, machine, offset, (u8 *)buffer,
 627                                     end - start + MAXINSN);
 628
 629         *is64bit = al.map->dso->is_64_bit;
 630         if (len <= 0)
 631                 printf("\tcannot fetch code for block at %" PRIx64 "-%" PRIx64 "\n",
 632                         start, end);
 633         return len;
 634 }
 635
 636 static void print_jump(uint64_t ip, struct branch_entry *en,
 637                        struct perf_insn *x, u8 *inbuf, int len,
 638                        int insn)
 639 {
 640         printf("\t%016" PRIx64 "\t%-30s\t#%s%s%s%s",
 641                ip,
 642                dump_insn(x, ip, inbuf, len, NULL),
 643                en->flags.predicted ? " PRED" : "",
 644                en->flags.mispred ? " MISPRED" : "",
 645                en->flags.in_tx ? " INTX" : "",
 646                en->flags.abort ? " ABORT" : "");
 647         if (en->flags.cycles) {
 648                 printf(" %d cycles", en->flags.cycles);
 649                 if (insn)
 650                         printf(" %.2f IPC", (float)insn / en->flags.cycles);
 651         }
 652         putchar('\n');
 653 }
 654
 655 static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
 656                          uint64_t addr, struct symbol **lastsym,
 657                          struct perf_event_attr *attr)
 658 {
 659         struct addr_location al;
 660         int off;
 661
 662         memset(&al, 0, sizeof(al));
 663
 664         thread__find_addr_map(thread, cpumode, MAP__FUNCTION, addr, &al);
 665         if (!al.map)
 666                 thread__find_addr_map(thread, cpumode, MAP__VARIABLE,
 667                                       addr, &al);
 668         if ((*lastsym) && al.addr >= (*lastsym)->start && al.addr < (*lastsym)->end)
 669                 return;
 670
 671         al.cpu = cpu;
 672         al.sym = NULL;
 673         if (al.map)
 674                 al.sym = map__find_symbol(al.map, al.addr);
 675
 676         if (!al.sym)
 677                 return;
 678
 679         if (al.addr < al.sym->end)
 680                 off = al.addr - al.sym->start;
 681         else
 682                 off = al.addr - al.map->start - al.sym->start;
 683         printf("\t%s", al.sym->name);
 684         if (off)
 685                 printf("%+d", off);
 686         putchar(':');
 687         if (PRINT_FIELD(SRCLINE))
 688                 map__fprintf_srcline(al.map, al.addr, "\t", stdout);
 689         putchar('\n');
 690         *lastsym = al.sym;
 691 }
 692
 693 static void print_sample_brstackinsn(struct perf_sample *sample,
 694                                      struct thread *thread,
 695                                      struct perf_event_attr *attr,
 696                                      struct machine *machine)
 697 {
 698         struct branch_stack *br = sample->branch_stack;
 699         u64 start, end;
 700         int i, insn, len, nr, ilen;
 701         struct perf_insn x;
 702         u8 buffer[MAXBB];
 703         unsigned off;
 704         struct symbol *lastsym = NULL;
 705
 706         if (!(br && br->nr))
 707                 return;
 708         nr = br->nr;
 709         if (max_blocks && nr > max_blocks + 1)
 710                 nr = max_blocks + 1;
 711
 712         x.thread = thread;
 713         x.cpu = sample->cpu;
 714
 715         putchar('\n');
 716
 717         /* Handle first from jump, of which we don't know the entry. */
 718         len = grab_bb(buffer, br->entries[nr-1].from,
 719                         br->entries[nr-1].from,
 720                         machine, thread, &x.is64bit, &x.cpumode, false);
 721         if (len > 0) {
 722                 print_ip_sym(thread, x.cpumode, x.cpu,
 723                              br->entries[nr - 1].from, &lastsym, attr);
 724                 print_jump(br->entries[nr - 1].from, &br->entries[nr - 1],
 725                             &x, buffer, len, 0);
 726         }
 727
 728         /* Print all blocks */
 729         for (i = nr - 2; i >= 0; i--) {
 730                 if (br->entries[i].from || br->entries[i].to)
 731                         pr_debug("%d: %" PRIx64 "-%" PRIx64 "\n", i,
 732                                  br->entries[i].from,
 733                                  br->entries[i].to);
 734                 start = br->entries[i + 1].to;
 735                 end   = br->entries[i].from;
 736
 737                 len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, false);
 738                 /* Patch up missing kernel transfers due to ring filters */
 739                 if (len == -ENXIO && i > 0) {
 740                         end = br->entries[--i].from;
 741                         pr_debug("\tpatching up to %" PRIx64 "-%" PRIx64 "\n", start, end);
 742                         len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, false);
 743                 }
 744                 if (len <= 0)
 745                         continue;
 746
 747                 insn = 0;
 748                 for (off = 0;; off += ilen) {
 749                         uint64_t ip = start + off;
 750
 751                         print_ip_sym(thread, x.cpumode, x.cpu, ip, &lastsym, attr);
 752                         if (ip == end) {
 753                                 print_jump(ip, &br->entries[i], &x, buffer + off, len - off, insn);
 754                                 break;
 755                         } else {
 756                                 printf("\t%016" PRIx64 "\t%s\n", ip,
 757                                         dump_insn(&x, ip, buffer + off, len - off, &ilen));
 758                                 if (ilen == 0)
 759                                         break;
 760                                 insn++;
 761                         }
 762                 }
 763         }
 764
 765         /*
 766          * Hit the branch? In this case we are already done, and the target
 767          * has not been executed yet.
 768          */
 769         if (br->entries[0].from == sample->ip)
 770                 return;
 771         if (br->entries[0].flags.abort)
 772                 return;
 773
 774         /*
 775          * Print final block upto sample
 776          */
 777         start = br->entries[0].to;
 778         end = sample->ip;
 779         len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, true);
 780         print_ip_sym(thread, x.cpumode, x.cpu, start, &lastsym, attr);
 781         if (len <= 0) {
 782                 /* Print at least last IP if basic block did not work */
 783                 len = grab_bb(buffer, sample->ip, sample->ip,
 784                               machine, thread, &x.is64bit, &x.cpumode, false);
 785                 if (len <= 0)
 786                         return;
 787
 788                 printf("\t%016" PRIx64 "\t%s\n", sample->ip,
 789                         dump_insn(&x, sample->ip, buffer, len, NULL));
 790                 return;
 791         }
 792         for (off = 0; off <= end - start; off += ilen) {
 793                 printf("\t%016" PRIx64 "\t%s\n", start + off,
 794                         dump_insn(&x, start + off, buffer + off, len - off, &ilen));
 795                 if (ilen == 0)
 796                         break;
 797         }
 798 }
 799
 800 static void print_sample_addr(struct perf_sample *sample,
 801                           struct thread *thread,
 802                           struct perf_event_attr *attr)
 803 {
 804         struct addr_location al;
 805
 806         printf("%16" PRIx64, sample->addr);
 807
 808         if (!sample_addr_correlates_sym(attr))
 809                 return;
 810
 811         thread__resolve(thread, &al, sample);
 812
 813         if (PRINT_FIELD(SYM)) {
 814                 printf(" ");
 815                 if (PRINT_FIELD(SYMOFFSET))
 816                         symbol__fprintf_symname_offs(al.sym, &al, stdout);
 817                 else
 818                         symbol__fprintf_symname(al.sym, stdout);
 819         }
 820
 821         if (PRINT_FIELD(DSO)) {
 822                 printf(" (");
 823                 map__fprintf_dsoname(al.map, stdout);
 824                 printf(")");
 825         }
 826 }
 827
 828 static void print_sample_callindent(struct perf_sample *sample,
 829                                     struct perf_evsel *evsel,
 830                                     struct thread *thread,
 831                                     struct addr_location *al)
 832 {
 833         struct perf_event_attr *attr = &evsel->attr;
 834         size_t depth = thread_stack__depth(thread);
 835         struct addr_location addr_al;
 836         const char *name = NULL;
 837         static int spacing;
 838         int len = 0;
 839         u64 ip = 0;
 840
 841         /*
 842          * The 'return' has already been popped off the stack so the depth has
 843          * to be adjusted to match the 'call'.
 844          */
 845         if (thread->ts && sample->flags & PERF_IP_FLAG_RETURN)
 846                 depth += 1;
 847
 848         if (sample->flags & (PERF_IP_FLAG_CALL | PERF_IP_FLAG_TRACE_BEGIN)) {
 849                 if (sample_addr_correlates_sym(attr)) {
 850                         thread__resolve(thread, &addr_al, sample);
 851                         if (addr_al.sym)
 852                                 name = addr_al.sym->name;
 853                         else
 854                                 ip = sample->addr;
 855                 } else {
 856                         ip = sample->addr;
 857                 }
 858         } else if (sample->flags & (PERF_IP_FLAG_RETURN | PERF_IP_FLAG_TRACE_END)) {
 859                 if (al->sym)
 860                         name = al->sym->name;
 861                 else
 862                         ip = sample->ip;
 863         }
 864
 865         if (name)
 866                 len = printf("%*s%s", (int)depth * 4, "", name);
 867         else if (ip)
 868                 len = printf("%*s%16" PRIx64, (int)depth * 4, "", ip);
 869
 870         if (len < 0)
 871                 return;
 872
 873         /*
 874          * Try to keep the output length from changing frequently so that the
 875          * output lines up more nicely.
 876          */
 877         if (len > spacing || (len && len < spacing - 52))
 878                 spacing = round_up(len + 4, 32);
 879
 880         if (len < spacing)
 881                 printf("%*s", spacing - len, "");
 882 }
 883
 884 static void print_insn(struct perf_sample *sample,
 885                        struct perf_event_attr *attr,
 886                        struct thread *thread,
 887                        struct machine *machine)
 888 {
 889         if (PRINT_FIELD(INSNLEN))
 890                 printf(" ilen: %d", sample->insn_len);
 891         if (PRINT_FIELD(INSN)) {
 892                 int i;
 893
 894                 printf(" insn:");
 895                 for (i = 0; i < sample->insn_len; i++)
 896                         printf(" %02x", (unsigned char)sample->insn[i]);
 897         }
 898         if (PRINT_FIELD(BRSTACKINSN))
 899                 print_sample_brstackinsn(sample, thread, attr, machine);
 900 }
 901
 902 static void print_sample_bts(struct perf_sample *sample,
 903                              struct perf_evsel *evsel,
 904                              struct thread *thread,
 905                              struct addr_location *al,
 906                              struct machine *machine)
 907 {
 908         struct perf_event_attr *attr = &evsel->attr;
 909         bool print_srcline_last = false;
 910
 911         if (PRINT_FIELD(CALLINDENT))
 912                 print_sample_callindent(sample, evsel, thread, al);
 913
 914         /* print branch_from information */
 915         if (PRINT_FIELD(IP)) {
 916                 unsigned int print_opts = output[attr->type].print_ip_opts;
 917                 struct callchain_cursor *cursor = NULL;
 918
 919                 if (symbol_conf.use_callchain && sample->callchain &&
 920                     thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
 921                                               sample, NULL, NULL, scripting_max_stack) == 0)
 922                         cursor = &callchain_cursor;
 923
 924                 if (cursor == NULL) {
 925                         putchar(' ');
 926                         if (print_opts & EVSEL__PRINT_SRCLINE) {
 927                                 print_srcline_last = true;
 928                                 print_opts &= ~EVSEL__PRINT_SRCLINE;
 929                         }
 930                 } else
 931                         putchar('\n');
 932
 933                 sample__fprintf_sym(sample, al, 0, print_opts, cursor, stdout);
 934         }
 935
 936         /* print branch_to information */
 937         if (PRINT_FIELD(ADDR) ||
 938             ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
 939              !output[attr->type].user_set)) {
 940                 printf(" => ");
 941                 print_sample_addr(sample, thread, attr);
 942         }
 943
 944         if (print_srcline_last)
 945                 map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);
 946
 947         print_insn(sample, attr, thread, machine);
 948
 949         printf("\n");
 950 }
 951
 952 static struct {
 953         u32 flags;
 954         const char *name;
 955 } sample_flags[] = {
 956         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"},
 957         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"},
 958         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "jcc"},
 959         {PERF_IP_FLAG_BRANCH, "jmp"},
 960         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT, "int"},
 961         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT, "iret"},
 962         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET, "syscall"},
 963         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET, "sysret"},
 964         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "async"},
 965         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC | PERF_IP_FLAG_INTERRUPT, "hw int"},
 966         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "tx abrt"},
 967         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "tr strt"},
 968         {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "tr end"},
 969         {0, NULL}
 970 };
 971
 972 static void print_sample_flags(u32 flags)
 973 {
 974         const char *chars = PERF_IP_FLAG_CHARS;
 975         const int n = strlen(PERF_IP_FLAG_CHARS);
 976         bool in_tx = flags & PERF_IP_FLAG_IN_TX;
 977         const char *name = NULL;
 978         char str[33];
 979         int i, pos = 0;
 980
 981         for (i = 0; sample_flags[i].name ; i++) {
 982                 if (sample_flags[i].flags == (flags & ~PERF_IP_FLAG_IN_TX)) {
 983                         name = sample_flags[i].name;
 984                         break;
 985                 }
 986         }
 987
 988         for (i = 0; i < n; i++, flags >>= 1) {
 989                 if (flags & 1)
 990                         str[pos++] = chars[i];
 991         }
 992         for (; i < 32; i++, flags >>= 1) {
 993                 if (flags & 1)
 994                         str[pos++] = '?';
 995         }
 996         str[pos] = 0;
 997
 998         if (name)
 999                 printf("  %-7s%4s ", name, in_tx ? "(x)" : "");
1000         else
1001                 printf("  %-11s ", str);
1002 }
1003
1004 struct printer_data {
1005         int line_no;
1006         bool hit_nul;
1007         bool is_printable;
1008 };
1009
1010 static void
1011 print_sample_bpf_output_printer(enum binary_printer_ops op,
1012                                 unsigned int val,
1013                                 void *extra)
1014 {
1015         unsigned char ch = (unsigned char)val;
1016         struct printer_data *printer_data = extra;
1017
1018         switch (op) {
1019         case BINARY_PRINT_DATA_BEGIN:
1020                 printf("\n");
1021                 break;
1022         case BINARY_PRINT_LINE_BEGIN:
1023                 printf("%17s", !printer_data->line_no ? "BPF output:" :
1024                                                         "           ");
1025                 break;
1026         case BINARY_PRINT_ADDR:
1027                 printf(" %04x:", val);
1028                 break;
1029         case BINARY_PRINT_NUM_DATA:
1030                 printf(" %02x", val);
1031                 break;
1032         case BINARY_PRINT_NUM_PAD:
1033                 printf("   ");
1034                 break;
1035         case BINARY_PRINT_SEP:
1036                 printf("  ");
1037                 break;
1038         case BINARY_PRINT_CHAR_DATA:
1039                 if (printer_data->hit_nul && ch)
1040                         printer_data->is_printable = false;
1041
1042                 if (!isprint(ch)) {
1043                         printf("%c", '.');
1044
1045                         if (!printer_data->is_printable)
1046                                 break;
1047
1048                         if (ch == '\0')
1049                                 printer_data->hit_nul = true;
1050                         else
1051                                 printer_data->is_printable = false;
1052                 } else {
1053                         printf("%c", ch);
1054                 }
1055                 break;
1056         case BINARY_PRINT_CHAR_PAD:
1057                 printf(" ");
1058                 break;
1059         case BINARY_PRINT_LINE_END:
1060                 printf("\n");
1061                 printer_data->line_no++;
1062                 break;
1063         case BINARY_PRINT_DATA_END:
1064         default:
1065                 break;
1066         }
1067 }
1068
1069 static void print_sample_bpf_output(struct perf_sample *sample)
1070 {
1071         unsigned int nr_bytes = sample->raw_size;
1072         struct printer_data printer_data = {0, false, true};
1073
1074         print_binary(sample->raw_data, nr_bytes, 8,
1075                      print_sample_bpf_output_printer, &printer_data);
1076
1077         if (printer_data.is_printable && printer_data.hit_nul)
1078                 printf("%17s \"%s\"\n", "BPF string:",
1079                        (char *)(sample->raw_data));
1080 }
1081
1082 struct perf_script {
1083         struct perf_tool        tool;
1084         struct perf_session     *session;
1085         bool                    show_task_events;
1086         bool                    show_mmap_events;
1087         bool                    show_switch_events;
1088         bool                    show_namespace_events;
1089         bool                    allocated;
1090         struct cpu_map          *cpus;
1091         struct thread_map       *threads;
1092         int                     name_width;
1093         const char              *time_str;
1094         struct perf_time_interval ptime;
1095 };
1096
1097 static int perf_evlist__max_name_len(struct perf_evlist *evlist)
1098 {
1099         struct perf_evsel *evsel;
1100         int max = 0;
1101
1102         evlist__for_each_entry(evlist, evsel) {
1103                 int len = strlen(perf_evsel__name(evsel));
1104
1105                 max = MAX(len, max);
1106         }
1107
1108         return max;
1109 }
1110
1111 static size_t data_src__printf(u64 data_src)
1112 {
1113         struct mem_info mi = { .data_src.val = data_src };
1114         char decode[100];
1115         char out[100];
1116         static int maxlen;
1117         int len;
1118
1119         perf_script__meminfo_scnprintf(decode, 100, &mi);
1120
1121         len = scnprintf(out, 100, "%16" PRIx64 " %s", data_src, decode);
1122         if (maxlen < len)
1123                 maxlen = len;
1124
1125         return printf("%-*s", maxlen, out);
1126 }
1127
1128 static void process_event(struct perf_script *script,
1129                           struct perf_sample *sample, struct perf_evsel *evsel,
1130                           struct addr_location *al,
1131                           struct machine *machine)
1132 {
1133         struct thread *thread = al->thread;
1134         struct perf_event_attr *attr = &evsel->attr;
1135
1136         if (output[attr->type].fields == 0)
1137                 return;
1138
1139         print_sample_start(sample, thread, evsel);
1140
1141         if (PRINT_FIELD(PERIOD))
1142                 printf("%10" PRIu64 " ", sample->period);
1143
1144         if (PRINT_FIELD(EVNAME)) {
1145                 const char *evname = perf_evsel__name(evsel);
1146
1147                 if (!script->name_width)
1148                         script->name_width = perf_evlist__max_name_len(script->session->evlist);
1149
1150                 printf("%*s: ", script->name_width,
1151                        evname ? evname : "[unknown]");
1152         }
1153
1154         if (print_flags)
1155                 print_sample_flags(sample->flags);
1156
1157         if (is_bts_event(attr)) {
1158                 print_sample_bts(sample, evsel, thread, al, machine);
1159                 return;
1160         }
1161
1162         if (PRINT_FIELD(TRACE))
1163                 event_format__print(evsel->tp_format, sample->cpu,
1164                                     sample->raw_data, sample->raw_size);
1165         if (PRINT_FIELD(ADDR))
1166                 print_sample_addr(sample, thread, attr);
1167
1168         if (PRINT_FIELD(DATA_SRC))
1169                 data_src__printf(sample->data_src);
1170
1171         if (PRINT_FIELD(WEIGHT))
1172                 printf("%16" PRIu64, sample->weight);
1173
1174         if (PRINT_FIELD(IP)) {
1175                 struct callchain_cursor *cursor = NULL;
1176
1177                 if (symbol_conf.use_callchain && sample->callchain &&
1178                     thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
1179                                               sample, NULL, NULL, scripting_max_stack) == 0)
1180                         cursor = &callchain_cursor;
1181
1182                 putchar(cursor ? '\n' : ' ');
1183                 sample__fprintf_sym(sample, al, 0, output[attr->type].print_ip_opts, cursor, stdout);
1184         }
1185
1186         if (PRINT_FIELD(IREGS))
1187                 print_sample_iregs(sample, attr);
1188
1189         if (PRINT_FIELD(BRSTACK))
1190                 print_sample_brstack(sample);
1191         else if (PRINT_FIELD(BRSTACKSYM))
1192                 print_sample_brstacksym(sample, thread);
1193
1194         if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
1195                 print_sample_bpf_output(sample);
1196         print_insn(sample, attr, thread, machine);
1197         printf("\n");
1198 }
1199
1200 static struct scripting_ops     *scripting_ops;
1201
1202 static void __process_stat(struct perf_evsel *counter, u64 tstamp)
1203 {
1204         int nthreads = thread_map__nr(counter->threads);
1205         int ncpus = perf_evsel__nr_cpus(counter);
1206         int cpu, thread;
1207         static int header_printed;
1208
1209         if (counter->system_wide)
1210                 nthreads = 1;
1211
1212         if (!header_printed) {
1213                 printf("%3s %8s %15s %15s %15s %15s %s\n",
1214                        "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
1215                 header_printed = 1;
1216         }
1217
1218         for (thread = 0; thread < nthreads; thread++) {
1219                 for (cpu = 0; cpu < ncpus; cpu++) {
1220                         struct perf_counts_values *counts;
1221
1222                         counts = perf_counts(counter->counts, cpu, thread);
1223
1224                         printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
1225                                 counter->cpus->map[cpu],
1226                                 thread_map__pid(counter->threads, thread),
1227                                 counts->val,
1228                                 counts->ena,
1229                                 counts->run,
1230                                 tstamp,
1231                                 perf_evsel__name(counter));
1232                 }
1233         }
1234 }
1235
1236 static void process_stat(struct perf_evsel *counter, u64 tstamp)
1237 {
1238         if (scripting_ops && scripting_ops->process_stat)
1239                 scripting_ops->process_stat(&stat_config, counter, tstamp);
1240         else
1241                 __process_stat(counter, tstamp);
1242 }
1243
1244 static void process_stat_interval(u64 tstamp)
1245 {
1246         if (scripting_ops && scripting_ops->process_stat_interval)
1247                 scripting_ops->process_stat_interval(tstamp);
1248 }
1249
1250 static void setup_scripting(void)
1251 {
1252         setup_perl_scripting();
1253         setup_python_scripting();
1254 }
1255
1256 static int flush_scripting(void)
1257 {
1258         return scripting_ops ? scripting_ops->flush_script() : 0;
1259 }
1260
1261 static int cleanup_scripting(void)
1262 {
1263         pr_debug("\nperf script stopped\n");
1264
1265         return scripting_ops ? scripting_ops->stop_script() : 0;
1266 }
1267
1268 static int process_sample_event(struct perf_tool *tool,
1269                                 union perf_event *event,
1270                                 struct perf_sample *sample,
1271                                 struct perf_evsel *evsel,
1272                                 struct machine *machine)
1273 {
1274         struct perf_script *scr = container_of(tool, struct perf_script, tool);
1275         struct addr_location al;
1276
1277         if (perf_time__skip_sample(&scr->ptime, sample->time))
1278                 return 0;
1279
1280         if (debug_mode) {
1281                 if (sample->time < last_timestamp) {
1282                         pr_err("Samples misordered, previous: %" PRIu64
1283                                 " this: %" PRIu64 "\n", last_timestamp,
1284                                 sample->time);
1285                         nr_unordered++;
1286                 }
1287                 last_timestamp = sample->time;
1288                 return 0;
1289         }
1290
1291         if (machine__resolve(machine, &al, sample) < 0) {
1292                 pr_err("problem processing %d event, skipping it.\n",
1293                        event->header.type);
1294                 return -1;
1295         }
1296
1297         if (al.filtered)
1298                 goto out_put;
1299
1300         if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
1301                 goto out_put;
1302
1303         if (scripting_ops)
1304                 scripting_ops->process_event(event, sample, evsel, &al);
1305         else
1306                 process_event(scr, sample, evsel, &al, machine);
1307
1308 out_put:
1309         addr_location__put(&al);
1310         return 0;
1311 }
1312
1313 static int process_attr(struct perf_tool *tool, union perf_event *event,
1314                         struct perf_evlist **pevlist)
1315 {
1316         struct perf_script *scr = container_of(tool, struct perf_script, tool);
1317         struct perf_evlist *evlist;
1318         struct perf_evsel *evsel, *pos;
1319         int err;
1320
1321         err = perf_event__process_attr(tool, event, pevlist);
1322         if (err)
1323                 return err;
1324
1325         evlist = *pevlist;
1326         evsel = perf_evlist__last(*pevlist);
1327
1328         if (evsel->attr.type >= PERF_TYPE_MAX)
1329                 return 0;
1330
1331         evlist__for_each_entry(evlist, pos) {
1332                 if (pos->attr.type == evsel->attr.type && pos != evsel)
1333                         return 0;
1334         }
1335
1336         set_print_ip_opts(&evsel->attr);
1337
1338         if (evsel->attr.sample_type)
1339                 err = perf_evsel__check_attr(evsel, scr->session);
1340
1341         return err;
1342 }
1343
1344 static int process_comm_event(struct perf_tool *tool,
1345                               union perf_event *event,
1346                               struct perf_sample *sample,
1347                               struct machine *machine)
1348 {
1349         struct thread *thread;
1350         struct perf_script *script = container_of(tool, struct perf_script, tool);
1351         struct perf_session *session = script->session;
1352         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1353         int ret = -1;
1354
1355         thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
1356         if (thread == NULL) {
1357                 pr_debug("problem processing COMM event, skipping it.\n");
1358                 return -1;
1359         }
1360
1361         if (perf_event__process_comm(tool, event, sample, machine) < 0)
1362                 goto out;
1363
1364         if (!evsel->attr.sample_id_all) {
1365                 sample->cpu = 0;
1366                 sample->time = 0;
1367                 sample->tid = event->comm.tid;
1368                 sample->pid = event->comm.pid;
1369         }
1370         print_sample_start(sample, thread, evsel);
1371         perf_event__fprintf(event, stdout);
1372         ret = 0;
1373 out:
1374         thread__put(thread);
1375         return ret;
1376 }
1377
1378 static int process_namespaces_event(struct perf_tool *tool,
1379                                     union perf_event *event,
1380                                     struct perf_sample *sample,
1381                                     struct machine *machine)
1382 {
1383         struct thread *thread;
1384         struct perf_script *script = container_of(tool, struct perf_script, tool);
1385         struct perf_session *session = script->session;
1386         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1387         int ret = -1;
1388
1389         thread = machine__findnew_thread(machine, event->namespaces.pid,
1390                                          event->namespaces.tid);
1391         if (thread == NULL) {
1392                 pr_debug("problem processing NAMESPACES event, skipping it.\n");
1393                 return -1;
1394         }
1395
1396         if (perf_event__process_namespaces(tool, event, sample, machine) < 0)
1397                 goto out;
1398
1399         if (!evsel->attr.sample_id_all) {
1400                 sample->cpu = 0;
1401                 sample->time = 0;
1402                 sample->tid = event->namespaces.tid;
1403                 sample->pid = event->namespaces.pid;
1404         }
1405         print_sample_start(sample, thread, evsel);
1406         perf_event__fprintf(event, stdout);
1407         ret = 0;
1408 out:
1409         thread__put(thread);
1410         return ret;
1411 }
1412
1413 static int process_fork_event(struct perf_tool *tool,
1414                               union perf_event *event,
1415                               struct perf_sample *sample,
1416                               struct machine *machine)
1417 {
1418         struct thread *thread;
1419         struct perf_script *script = container_of(tool, struct perf_script, tool);
1420         struct perf_session *session = script->session;
1421         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1422
1423         if (perf_event__process_fork(tool, event, sample, machine) < 0)
1424                 return -1;
1425
1426         thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1427         if (thread == NULL) {
1428                 pr_debug("problem processing FORK event, skipping it.\n");
1429                 return -1;
1430         }
1431
1432         if (!evsel->attr.sample_id_all) {
1433                 sample->cpu = 0;
1434                 sample->time = event->fork.time;
1435                 sample->tid = event->fork.tid;
1436                 sample->pid = event->fork.pid;
1437         }
1438         print_sample_start(sample, thread, evsel);
1439         perf_event__fprintf(event, stdout);
1440         thread__put(thread);
1441
1442         return 0;
1443 }
1444 static int process_exit_event(struct perf_tool *tool,
1445                               union perf_event *event,
1446                               struct perf_sample *sample,
1447                               struct machine *machine)
1448 {
1449         int err = 0;
1450         struct thread *thread;
1451         struct perf_script *script = container_of(tool, struct perf_script, tool);
1452         struct perf_session *session = script->session;
1453         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1454
1455         thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1456         if (thread == NULL) {
1457                 pr_debug("problem processing EXIT event, skipping it.\n");
1458                 return -1;
1459         }
1460
1461         if (!evsel->attr.sample_id_all) {
1462                 sample->cpu = 0;
1463                 sample->time = 0;
1464                 sample->tid = event->fork.tid;
1465                 sample->pid = event->fork.pid;
1466         }
1467         print_sample_start(sample, thread, evsel);
1468         perf_event__fprintf(event, stdout);
1469
1470         if (perf_event__process_exit(tool, event, sample, machine) < 0)
1471                 err = -1;
1472
1473         thread__put(thread);
1474         return err;
1475 }
1476
1477 static int process_mmap_event(struct perf_tool *tool,
1478                               union perf_event *event,
1479                               struct perf_sample *sample,
1480                               struct machine *machine)
1481 {
1482         struct thread *thread;
1483         struct perf_script *script = container_of(tool, struct perf_script, tool);
1484         struct perf_session *session = script->session;
1485         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1486
1487         if (perf_event__process_mmap(tool, event, sample, machine) < 0)
1488                 return -1;
1489
1490         thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
1491         if (thread == NULL) {
1492                 pr_debug("problem processing MMAP event, skipping it.\n");
1493                 return -1;
1494         }
1495
1496         if (!evsel->attr.sample_id_all) {
1497                 sample->cpu = 0;
1498                 sample->time = 0;
1499                 sample->tid = event->mmap.tid;
1500                 sample->pid = event->mmap.pid;
1501         }
1502         print_sample_start(sample, thread, evsel);
1503         perf_event__fprintf(event, stdout);
1504         thread__put(thread);
1505         return 0;
1506 }
1507
1508 static int process_mmap2_event(struct perf_tool *tool,
1509                               union perf_event *event,
1510                               struct perf_sample *sample,
1511                               struct machine *machine)
1512 {
1513         struct thread *thread;
1514         struct perf_script *script = container_of(tool, struct perf_script, tool);
1515         struct perf_session *session = script->session;
1516         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1517
1518         if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
1519                 return -1;
1520
1521         thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
1522         if (thread == NULL) {
1523                 pr_debug("problem processing MMAP2 event, skipping it.\n");
1524                 return -1;
1525         }
1526
1527         if (!evsel->attr.sample_id_all) {
1528                 sample->cpu = 0;
1529                 sample->time = 0;
1530                 sample->tid = event->mmap2.tid;
1531                 sample->pid = event->mmap2.pid;
1532         }
1533         print_sample_start(sample, thread, evsel);
1534         perf_event__fprintf(event, stdout);
1535         thread__put(thread);
1536         return 0;
1537 }
1538
1539 static int process_switch_event(struct perf_tool *tool,
1540                                 union perf_event *event,
1541                                 struct perf_sample *sample,
1542                                 struct machine *machine)
1543 {
1544         struct thread *thread;
1545         struct perf_script *script = container_of(tool, struct perf_script, tool);
1546         struct perf_session *session = script->session;
1547         struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1548
1549         if (perf_event__process_switch(tool, event, sample, machine) < 0)
1550                 return -1;
1551
1552         thread = machine__findnew_thread(machine, sample->pid,
1553                                          sample->tid);
1554         if (thread == NULL) {
1555                 pr_debug("problem processing SWITCH event, skipping it.\n");
1556                 return -1;
1557         }
1558
1559         print_sample_start(sample, thread, evsel);
1560         perf_event__fprintf(event, stdout);
1561         thread__put(thread);
1562         return 0;
1563 }
1564
1565 static void sig_handler(int sig __maybe_unused)
1566 {
1567         session_done = 1;
1568 }
1569
1570 static int __cmd_script(struct perf_script *script)
1571 {
1572         int ret;
1573
1574         signal(SIGINT, sig_handler);
1575
1576         /* override event processing functions */
1577         if (script->show_task_events) {
1578                 script->tool.comm = process_comm_event;
1579                 script->tool.fork = process_fork_event;
1580                 script->tool.exit = process_exit_event;
1581         }
1582         if (script->show_mmap_events) {
1583                 script->tool.mmap = process_mmap_event;
1584                 script->tool.mmap2 = process_mmap2_event;
1585         }
1586         if (script->show_switch_events)
1587                 script->tool.context_switch = process_switch_event;
1588         if (script->show_namespace_events)
1589                 script->tool.namespaces = process_namespaces_event;
1590
1591         ret = perf_session__process_events(script->session);
1592
1593         if (debug_mode)
1594                 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
1595
1596         return ret;
1597 }
1598
1599 struct script_spec {
1600         struct list_head        node;
1601         struct scripting_ops    *ops;
1602         char                    spec[0];
1603 };
1604
1605 static LIST_HEAD(script_specs);
1606
1607 static struct script_spec *script_spec__new(const char *spec,
1608                                             struct scripting_ops *ops)
1609 {
1610         struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
1611
1612         if (s != NULL) {
1613                 strcpy(s->spec, spec);
1614                 s->ops = ops;
1615         }
1616
1617         return s;
1618 }
1619
1620 static void script_spec__add(struct script_spec *s)
1621 {
1622         list_add_tail(&s->node, &script_specs);
1623 }
1624
1625 static struct script_spec *script_spec__find(const char *spec)
1626 {
1627         struct script_spec *s;
1628
1629         list_for_each_entry(s, &script_specs, node)
1630                 if (strcasecmp(s->spec, spec) == 0)
1631                         return s;
1632         return NULL;
1633 }
1634
1635 int script_spec_register(const char *spec, struct scripting_ops *ops)
1636 {
1637         struct script_spec *s;
1638
1639         s = script_spec__find(spec);
1640         if (s)
1641                 return -1;
1642
1643         s = script_spec__new(spec, ops);
1644         if (!s)
1645                 return -1;
1646         else
1647                 script_spec__add(s);
1648
1649         return 0;
1650 }
1651
1652 static struct scripting_ops *script_spec__lookup(const char *spec)
1653 {
1654         struct script_spec *s = script_spec__find(spec);
1655         if (!s)
1656                 return NULL;
1657
1658         return s->ops;
1659 }
1660
1661 static void list_available_languages(void)
1662 {
1663         struct script_spec *s;
1664
1665         fprintf(stderr, "\n");
1666         fprintf(stderr, "Scripting language extensions (used in "
1667                 "perf script -s [spec:]script.[spec]):\n\n");
1668
1669         list_for_each_entry(s, &script_specs, node)
1670                 fprintf(stderr, "  %-42s [%s]\n", s->spec, s->ops->name);
1671
1672         fprintf(stderr, "\n");
1673 }
1674
1675 static int parse_scriptname(const struct option *opt __maybe_unused,
1676                             const char *str, int unset __maybe_unused)
1677 {
1678         char spec[PATH_MAX];
1679         const char *script, *ext;
1680         int len;
1681
1682         if (strcmp(str, "lang") == 0) {
1683                 list_available_languages();
1684                 exit(0);
1685         }
1686
1687         script = strchr(str, ':');
1688         if (script) {
1689                 len = script - str;
1690                 if (len >= PATH_MAX) {
1691                         fprintf(stderr, "invalid language specifier");
1692                         return -1;
1693                 }
1694                 strncpy(spec, str, len);
1695                 spec[len] = '\0';
1696                 scripting_ops = script_spec__lookup(spec);
1697                 if (!scripting_ops) {
1698                         fprintf(stderr, "invalid language specifier");
1699                         return -1;
1700                 }
1701                 script++;
1702         } else {
1703                 script = str;
1704                 ext = strrchr(script, '.');
1705                 if (!ext) {
1706                         fprintf(stderr, "invalid script extension");
1707                         return -1;
1708                 }
1709                 scripting_ops = script_spec__lookup(++ext);
1710                 if (!scripting_ops) {
1711                         fprintf(stderr, "invalid script extension");
1712                         return -1;
1713                 }
1714         }
1715
1716         script_name = strdup(script);
1717
1718         return 0;
1719 }
1720
1721 static int parse_output_fields(const struct option *opt __maybe_unused,
1722                             const char *arg, int unset __maybe_unused)
1723 {
1724         char *tok, *strtok_saveptr = NULL;
1725         int i, imax = ARRAY_SIZE(all_output_options);
1726         int j;
1727         int rc = 0;
1728         char *str = strdup(arg);
1729         int type = -1;
1730
1731         if (!str)
1732                 return -ENOMEM;
1733
1734         /* first word can state for which event type the user is specifying
1735          * the fields. If no type exists, the specified fields apply to all
1736          * event types found in the file minus the invalid fields for a type.
1737          */
1738         tok = strchr(str, ':');
1739         if (tok) {
1740                 *tok = '\0';
1741                 tok++;
1742                 if (!strcmp(str, "hw"))
1743                         type = PERF_TYPE_HARDWARE;
1744                 else if (!strcmp(str, "sw"))
1745                         type = PERF_TYPE_SOFTWARE;
1746                 else if (!strcmp(str, "trace"))
1747                         type = PERF_TYPE_TRACEPOINT;
1748                 else if (!strcmp(str, "raw"))
1749                         type = PERF_TYPE_RAW;
1750                 else if (!strcmp(str, "break"))
1751                         type = PERF_TYPE_BREAKPOINT;
1752                 else {
1753                         fprintf(stderr, "Invalid event type in field string.\n");
1754                         rc = -EINVAL;
1755                         goto out;
1756                 }
1757
1758                 if (output[type].user_set)
1759                         pr_warning("Overriding previous field request for %s events.\n",
1760                                    event_type(type));
1761
1762                 output[type].fields = 0;
1763                 output[type].user_set = true;
1764                 output[type].wildcard_set = false;
1765
1766         } else {
1767                 tok = str;
1768                 if (strlen(str) == 0) {
1769                         fprintf(stderr,
1770                                 "Cannot set fields to 'none' for all event types.\n");
1771                         rc = -EINVAL;
1772                         goto out;
1773                 }
1774
1775                 if (output_set_by_user())
1776                         pr_warning("Overriding previous field request for all events.\n");
1777
1778                 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1779                         output[j].fields = 0;
1780                         output[j].user_set = true;
1781                         output[j].wildcard_set = true;
1782                 }
1783         }
1784
1785         for (tok = strtok_r(tok, ",", &strtok_saveptr); tok; tok = strtok_r(NULL, ",", &strtok_saveptr)) {
1786                 for (i = 0; i < imax; ++i) {
1787                         if (strcmp(tok, all_output_options[i].str) == 0)
1788                                 break;
1789                 }
1790                 if (i == imax && strcmp(tok, "flags") == 0) {
1791                         print_flags = true;
1792                         continue;
1793                 }
1794                 if (i == imax) {
1795                         fprintf(stderr, "Invalid field requested.\n");
1796                         rc = -EINVAL;
1797                         goto out;
1798                 }
1799
1800                 if (type == -1) {
1801                         /* add user option to all events types for
1802                          * which it is valid
1803                          */
1804                         for (j = 0; j < PERF_TYPE_MAX; ++j) {
1805                                 if (output[j].invalid_fields & all_output_options[i].field) {
1806                                         pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1807                                                    all_output_options[i].str, event_type(j));
1808                                 } else
1809                                         output[j].fields |= all_output_options[i].field;
1810                         }
1811                 } else {
1812                         if (output[type].invalid_fields & all_output_options[i].field) {
1813                                 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1814                                          all_output_options[i].str, event_type(type));
1815
1816                                 rc = -EINVAL;
1817                                 goto out;
1818                         }
1819                         output[type].fields |= all_output_options[i].field;
1820                 }
1821         }
1822
1823         if (type >= 0) {
1824                 if (output[type].fields == 0) {
1825                         pr_debug("No fields requested for %s type. "
1826                                  "Events will not be displayed.\n", event_type(type));
1827                 }
1828         }
1829
1830 out:
1831         free(str);
1832         return rc;
1833 }
1834
1835 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
1836 static int is_directory(const char *base_path, const struct dirent *dent)
1837 {
1838         char path[PATH_MAX];
1839         struct stat st;
1840
1841         sprintf(path, "%s/%s", base_path, dent->d_name);
1842         if (stat(path, &st))
1843                 return 0;
1844
1845         return S_ISDIR(st.st_mode);
1846 }
1847
1848 #define for_each_lang(scripts_path, scripts_dir, lang_dirent)           \
1849         while ((lang_dirent = readdir(scripts_dir)) != NULL)            \
1850                 if ((lang_dirent->d_type == DT_DIR ||                   \
1851                      (lang_dirent->d_type == DT_UNKNOWN &&              \
1852                       is_directory(scripts_path, lang_dirent))) &&      \
1853                     (strcmp(lang_dirent->d_name, ".")) &&               \
1854                     (strcmp(lang_dirent->d_name, "..")))
1855
1856 #define for_each_script(lang_path, lang_dir, script_dirent)             \
1857         while ((script_dirent = readdir(lang_dir)) != NULL)             \
1858                 if (script_dirent->d_type != DT_DIR &&                  \
1859                     (script_dirent->d_type != DT_UNKNOWN ||             \
1860                      !is_directory(lang_path, script_dirent)))
1861
1862
1863 #define RECORD_SUFFIX                   "-record"
1864 #define REPORT_SUFFIX                   "-report"
1865
1866 struct script_desc {
1867         struct list_head        node;
1868         char                    *name;
1869         char                    *half_liner;
1870         char                    *args;
1871 };
1872
1873 static LIST_HEAD(script_descs);
1874
1875 static struct script_desc *script_desc__new(const char *name)
1876 {
1877         struct script_desc *s = zalloc(sizeof(*s));
1878
1879         if (s != NULL && name)
1880                 s->name = strdup(name);
1881
1882         return s;
1883 }
1884
1885 static void script_desc__delete(struct script_desc *s)
1886 {
1887         zfree(&s->name);
1888         zfree(&s->half_liner);
1889         zfree(&s->args);
1890         free(s);
1891 }
1892
1893 static void script_desc__add(struct script_desc *s)
1894 {
1895         list_add_tail(&s->node, &script_descs);
1896 }
1897
1898 static struct script_desc *script_desc__find(const char *name)
1899 {
1900         struct script_desc *s;
1901
1902         list_for_each_entry(s, &script_descs, node)
1903                 if (strcasecmp(s->name, name) == 0)
1904                         return s;
1905         return NULL;
1906 }
1907
1908 static struct script_desc *script_desc__findnew(const char *name)
1909 {
1910         struct script_desc *s = script_desc__find(name);
1911
1912         if (s)
1913                 return s;
1914
1915         s = script_desc__new(name);
1916         if (!s)
1917                 goto out_delete_desc;
1918
1919         script_desc__add(s);
1920
1921         return s;
1922
1923 out_delete_desc:
1924         script_desc__delete(s);
1925
1926         return NULL;
1927 }
1928
1929 static const char *ends_with(const char *str, const char *suffix)
1930 {
1931         size_t suffix_len = strlen(suffix);
1932         const char *p = str;
1933
1934         if (strlen(str) > suffix_len) {
1935                 p = str + strlen(str) - suffix_len;
1936                 if (!strncmp(p, suffix, suffix_len))
1937                         return p;
1938         }
1939
1940         return NULL;
1941 }
1942
1943 static int read_script_info(struct script_desc *desc, const char *filename)
1944 {
1945         char line[BUFSIZ], *p;
1946         FILE *fp;
1947
1948         fp = fopen(filename, "r");
1949         if (!fp)
1950                 return -1;
1951
1952         while (fgets(line, sizeof(line), fp)) {
1953                 p = ltrim(line);
1954                 if (strlen(p) == 0)
1955                         continue;
1956                 if (*p != '#')
1957                         continue;
1958                 p++;
1959                 if (strlen(p) && *p == '!')
1960                         continue;
1961
1962                 p = ltrim(p);
1963                 if (strlen(p) && p[strlen(p) - 1] == '\n')
1964                         p[strlen(p) - 1] = '\0';
1965
1966                 if (!strncmp(p, "description:", strlen("description:"))) {
1967                         p += strlen("description:");
1968                         desc->half_liner = strdup(ltrim(p));
1969                         continue;
1970                 }
1971
1972                 if (!strncmp(p, "args:", strlen("args:"))) {
1973                         p += strlen("args:");
1974                         desc->args = strdup(ltrim(p));
1975                         continue;
1976                 }
1977         }
1978
1979         fclose(fp);
1980
1981         return 0;
1982 }
1983
1984 static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1985 {
1986         char *script_root, *str;
1987
1988         script_root = strdup(script_dirent->d_name);
1989         if (!script_root)
1990                 return NULL;
1991
1992         str = (char *)ends_with(script_root, suffix);
1993         if (!str) {
1994                 free(script_root);
1995                 return NULL;
1996         }
1997
1998         *str = '\0';
1999         return script_root;
2000 }
2001
2002 static int list_available_scripts(const struct option *opt __maybe_unused,
2003                                   const char *s __maybe_unused,
2004                                   int unset __maybe_unused)
2005 {
2006         struct dirent *script_dirent, *lang_dirent;
2007         char scripts_path[MAXPATHLEN];
2008         DIR *scripts_dir, *lang_dir;
2009         char script_path[MAXPATHLEN];
2010         char lang_path[MAXPATHLEN];
2011         struct script_desc *desc;
2012         char first_half[BUFSIZ];
2013         char *script_root;
2014
2015         snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
2016
2017         scripts_dir = opendir(scripts_path);
2018         if (!scripts_dir) {
2019                 fprintf(stdout,
2020                         "open(%s) failed.\n"
2021                         "Check \"PERF_EXEC_PATH\" env to set scripts dir.\n",
2022                         scripts_path);
2023                 exit(-1);
2024         }
2025
2026         for_each_lang(scripts_path, scripts_dir, lang_dirent) {
2027                 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
2028                          lang_dirent->d_name);
2029                 lang_dir = opendir(lang_path);
2030                 if (!lang_dir)
2031                         continue;
2032
2033                 for_each_script(lang_path, lang_dir, script_dirent) {
2034                         script_root = get_script_root(script_dirent, REPORT_SUFFIX);
2035                         if (script_root) {
2036                                 desc = script_desc__findnew(script_root);
2037                                 snprintf(script_path, MAXPATHLEN, "%s/%s",
2038                                          lang_path, script_dirent->d_name);
2039                                 read_script_info(desc, script_path);
2040                                 free(script_root);
2041                         }
2042                 }
2043         }
2044
2045         fprintf(stdout, "List of available trace scripts:\n");
2046         list_for_each_entry(desc, &script_descs, node) {
2047                 sprintf(first_half, "%s %s", desc->name,
2048                         desc->args ? desc->args : "");
2049                 fprintf(stdout, "  %-36s %s\n", first_half,
2050                         desc->half_liner ? desc->half_liner : "");
2051         }
2052
2053         exit(0);
2054 }
2055
2056 /*
2057  * Some scripts specify the required events in their "xxx-record" file,
2058  * this function will check if the events in perf.data match those
2059  * mentioned in the "xxx-record".
2060  *
2061  * Fixme: All existing "xxx-record" are all in good formats "-e event ",
2062  * which is covered well now. And new parsing code should be added to
2063  * cover the future complexing formats like event groups etc.
2064  */
2065 static int check_ev_match(char *dir_name, char *scriptname,
2066                         struct perf_session *session)
2067 {
2068         char filename[MAXPATHLEN], evname[128];
2069         char line[BUFSIZ], *p;
2070         struct perf_evsel *pos;
2071         int match, len;
2072         FILE *fp;
2073
2074         sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
2075
2076         fp = fopen(filename, "r");
2077         if (!fp)
2078                 return -1;
2079
2080         while (fgets(line, sizeof(line), fp)) {
2081                 p = ltrim(line);
2082                 if (*p == '#')
2083                         continue;
2084
2085                 while (strlen(p)) {
2086                         p = strstr(p, "-e");
2087                         if (!p)
2088                                 break;
2089
2090                         p += 2;
2091                         p = ltrim(p);
2092                         len = strcspn(p, " \t");
2093                         if (!len)
2094                                 break;
2095
2096                         snprintf(evname, len + 1, "%s", p);
2097
2098                         match = 0;
2099                         evlist__for_each_entry(session->evlist, pos) {
2100                                 if (!strcmp(perf_evsel__name(pos), evname)) {
2101                                         match = 1;
2102                                         break;
2103                                 }
2104                         }
2105
2106                         if (!match) {
2107                                 fclose(fp);
2108                                 return -1;
2109                         }
2110                 }
2111         }
2112
2113         fclose(fp);
2114         return 0;
2115 }
2116
2117 /*
2118  * Return -1 if none is found, otherwise the actual scripts number.
2119  *
2120  * Currently the only user of this function is the script browser, which
2121  * will list all statically runnable scripts, select one, execute it and
2122  * show the output in a perf browser.
2123  */
2124 int find_scripts(char **scripts_array, char **scripts_path_array)
2125 {
2126         struct dirent *script_dirent, *lang_dirent;
2127         char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
2128         DIR *scripts_dir, *lang_dir;
2129         struct perf_session *session;
2130         struct perf_data_file file = {
2131                 .path = input_name,
2132                 .mode = PERF_DATA_MODE_READ,
2133         };
2134         char *temp;
2135         int i = 0;
2136
2137         session = perf_session__new(&file, false, NULL);
2138         if (!session)
2139                 return -1;
2140
2141         snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
2142
2143         scripts_dir = opendir(scripts_path);
2144         if (!scripts_dir) {
2145                 perf_session__delete(session);
2146                 return -1;
2147         }
2148
2149         for_each_lang(scripts_path, scripts_dir, lang_dirent) {
2150                 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
2151                          lang_dirent->d_name);
2152 #ifdef NO_LIBPERL
2153                 if (strstr(lang_path, "perl"))
2154                         continue;
2155 #endif
2156 #ifdef NO_LIBPYTHON
2157                 if (strstr(lang_path, "python"))
2158                         continue;
2159 #endif
2160
2161                 lang_dir = opendir(lang_path);
2162                 if (!lang_dir)
2163                         continue;
2164
2165                 for_each_script(lang_path, lang_dir, script_dirent) {
2166                         /* Skip those real time scripts: xxxtop.p[yl] */
2167                         if (strstr(script_dirent->d_name, "top."))
2168                                 continue;
2169                         sprintf(scripts_path_array[i], "%s/%s", lang_path,
2170                                 script_dirent->d_name);
2171                         temp = strchr(script_dirent->d_name, '.');
2172                         snprintf(scripts_array[i],
2173                                 (temp - script_dirent->d_name) + 1,
2174                                 "%s", script_dirent->d_name);
2175
2176                         if (check_ev_match(lang_path,
2177                                         scripts_array[i], session))
2178                                 continue;
2179
2180                         i++;
2181                 }
2182                 closedir(lang_dir);
2183         }
2184
2185         closedir(scripts_dir);
2186         perf_session__delete(session);
2187         return i;
2188 }
2189
2190 static char *get_script_path(const char *script_root, const char *suffix)
2191 {
2192         struct dirent *script_dirent, *lang_dirent;
2193         char scripts_path[MAXPATHLEN];
2194         char script_path[MAXPATHLEN];
2195         DIR *scripts_dir, *lang_dir;
2196         char lang_path[MAXPATHLEN];
2197         char *__script_root;
2198
2199         snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
2200
2201         scripts_dir = opendir(scripts_path);
2202         if (!scripts_dir)
2203                 return NULL;
2204
2205         for_each_lang(scripts_path, scripts_dir, lang_dirent) {
2206                 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
2207                          lang_dirent->d_name);
2208                 lang_dir = opendir(lang_path);
2209                 if (!lang_dir)
2210                         continue;
2211
2212                 for_each_script(lang_path, lang_dir, script_dirent) {
2213                         __script_root = get_script_root(script_dirent, suffix);
2214                         if (__script_root && !strcmp(script_root, __script_root)) {
2215                                 free(__script_root);
2216                                 closedir(lang_dir);
2217                                 closedir(scripts_dir);
2218                                 snprintf(script_path, MAXPATHLEN, "%s/%s",
2219                                          lang_path, script_dirent->d_name);
2220                                 return strdup(script_path);
2221                         }
2222                         free(__script_root);
2223                 }
2224                 closedir(lang_dir);
2225         }
2226         closedir(scripts_dir);
2227
2228         return NULL;
2229 }
2230
2231 static bool is_top_script(const char *script_path)
2232 {
2233         return ends_with(script_path, "top") == NULL ? false : true;
2234 }
2235
2236 static int has_required_arg(char *script_path)
2237 {
2238         struct script_desc *desc;
2239         int n_args = 0;
2240         char *p;
2241
2242         desc = script_desc__new(NULL);
2243
2244         if (read_script_info(desc, script_path))
2245                 goto out;
2246
2247         if (!desc->args)
2248                 goto out;
2249
2250         for (p = desc->args; *p; p++)
2251                 if (*p == '<')
2252                         n_args++;
2253 out:
2254         script_desc__delete(desc);
2255
2256         return n_args;
2257 }
2258
2259 static int have_cmd(int argc, const char **argv)
2260 {
2261         char **__argv = malloc(sizeof(const char *) * argc);
2262
2263         if (!__argv) {
2264                 pr_err("malloc failed\n");
2265                 return -1;
2266         }
2267
2268         memcpy(__argv, argv, sizeof(const char *) * argc);
2269         argc = parse_options(argc, (const char **)__argv, record_options,
2270                              NULL, PARSE_OPT_STOP_AT_NON_OPTION);
2271         free(__argv);
2272
2273         system_wide = (argc == 0);
2274
2275         return 0;
2276 }
2277
2278 static void script__setup_sample_type(struct perf_script *script)
2279 {
2280         struct perf_session *session = script->session;
2281         u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
2282
2283         if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
2284                 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
2285                     (sample_type & PERF_SAMPLE_STACK_USER))
2286                         callchain_param.record_mode = CALLCHAIN_DWARF;
2287                 else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
2288                         callchain_param.record_mode = CALLCHAIN_LBR;
2289                 else
2290                         callchain_param.record_mode = CALLCHAIN_FP;
2291         }
2292 }
2293
2294 static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
2295                                     union perf_event *event,
2296                                     struct perf_session *session)
2297 {
2298         struct stat_round_event *round = &event->stat_round;
2299         struct perf_evsel *counter;
2300
2301         evlist__for_each_entry(session->evlist, counter) {
2302                 perf_stat_process_counter(&stat_config, counter);
2303                 process_stat(counter, round->time);
2304         }
2305
2306         process_stat_interval(round->time);
2307         return 0;
2308 }
2309
2310 static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
2311                                      union perf_event *event,
2312                                      struct perf_session *session __maybe_unused)
2313 {
2314         perf_event__read_stat_config(&stat_config, &event->stat_config);
2315         return 0;
2316 }
2317
2318 static int set_maps(struct perf_script *script)
2319 {
2320         struct perf_evlist *evlist = script->session->evlist;
2321
2322         if (!script->cpus || !script->threads)
2323                 return 0;
2324
2325         if (WARN_ONCE(script->allocated, "stats double allocation\n"))
2326                 return -EINVAL;
2327
2328         perf_evlist__set_maps(evlist, script->cpus, script->threads);
2329
2330         if (perf_evlist__alloc_stats(evlist, true))
2331                 return -ENOMEM;
2332
2333         script->allocated = true;
2334         return 0;
2335 }
2336
2337 static
2338 int process_thread_map_event(struct perf_tool *tool,
2339                              union perf_event *event,
2340                              struct perf_session *session __maybe_unused)
2341 {
2342         struct perf_script *script = container_of(tool, struct perf_script, tool);
2343
2344         if (script->threads) {
2345                 pr_warning("Extra thread map event, ignoring.\n");
2346                 return 0;
2347         }
2348
2349         script->threads = thread_map__new_event(&event->thread_map);
2350         if (!script->threads)
2351                 return -ENOMEM;
2352
2353         return set_maps(script);
2354 }
2355
2356 static
2357 int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
2358                           union perf_event *event,
2359                           struct perf_session *session __maybe_unused)
2360 {
2361         struct perf_script *script = container_of(tool, struct perf_script, tool);
2362
2363         if (script->cpus) {
2364                 pr_warning("Extra cpu map event, ignoring.\n");
2365                 return 0;
2366         }
2367
2368         script->cpus = cpu_map__new_data(&event->cpu_map.data);
2369         if (!script->cpus)
2370                 return -ENOMEM;
2371
2372         return set_maps(script);
2373 }
2374
2375 int cmd_script(int argc, const char **argv)
2376 {
2377         bool show_full_info = false;
2378         bool header = false;
2379         bool header_only = false;
2380         bool script_started = false;
2381         char *rec_script_path = NULL;
2382         char *rep_script_path = NULL;
2383         struct perf_session *session;
2384         struct itrace_synth_opts itrace_synth_opts = { .set = false, };
2385         char *script_path = NULL;
2386         const char **__argv;
2387         int i, j, err = 0;
2388         struct perf_script script = {
2389                 .tool = {
2390                         .sample          = process_sample_event,
2391                         .mmap            = perf_event__process_mmap,
2392                         .mmap2           = perf_event__process_mmap2,
2393                         .comm            = perf_event__process_comm,
2394                         .namespaces      = perf_event__process_namespaces,
2395                         .exit            = perf_event__process_exit,
2396                         .fork            = perf_event__process_fork,
2397                         .attr            = process_attr,
2398                         .event_update   = perf_event__process_event_update,
2399                         .tracing_data    = perf_event__process_tracing_data,
2400                         .build_id        = perf_event__process_build_id,
2401                         .id_index        = perf_event__process_id_index,
2402                         .auxtrace_info   = perf_event__process_auxtrace_info,
2403                         .auxtrace        = perf_event__process_auxtrace,
2404                         .auxtrace_error  = perf_event__process_auxtrace_error,
2405                         .stat            = perf_event__process_stat_event,
2406                         .stat_round      = process_stat_round_event,
2407                         .stat_config     = process_stat_config_event,
2408                         .thread_map      = process_thread_map_event,
2409                         .cpu_map         = process_cpu_map_event,
2410                         .ordered_events  = true,
2411                         .ordering_requires_timestamps = true,
2412                 },
2413         };
2414         struct perf_data_file file = {
2415                 .mode = PERF_DATA_MODE_READ,
2416         };
2417         const struct option options[] = {
2418         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
2419                     "dump raw trace in ASCII"),
2420         OPT_INCR('v', "verbose", &verbose,
2421                  "be more verbose (show symbol address, etc)"),
2422         OPT_BOOLEAN('L', "Latency", &latency_format,
2423                     "show latency attributes (irqs/preemption disabled, etc)"),
2424         OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
2425                            list_available_scripts),
2426         OPT_CALLBACK('s', "script", NULL, "name",
2427                      "script file name (lang:script name, script name, or *)",
2428                      parse_scriptname),
2429         OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
2430                    "generate perf-script.xx script in specified language"),
2431         OPT_STRING('i', "input", &input_name, "file", "input file name"),
2432         OPT_BOOLEAN('d', "debug-mode", &debug_mode,
2433                    "do various checks like samples ordering and lost events"),
2434         OPT_BOOLEAN(0, "header", &header, "Show data header."),
2435         OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
2436         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
2437                    "file", "vmlinux pathname"),
2438         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
2439                    "file", "kallsyms pathname"),
2440         OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
2441                     "When printing symbols do not display call chain"),
2442         OPT_CALLBACK(0, "symfs", NULL, "directory",
2443                      "Look for files with symbols relative to this directory",
2444                      symbol__config_symfs),
2445         OPT_CALLBACK('F', "fields", NULL, "str",
2446                      "comma separated output fields prepend with 'type:'. "
2447                      "Valid types: hw,sw,trace,raw. "
2448                      "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
2449                      "addr,symoff,period,iregs,brstack,brstacksym,flags,"
2450                      "bpf-output,callindent,insn,insnlen,brstackinsn",
2451                      parse_output_fields),
2452         OPT_BOOLEAN('a', "all-cpus", &system_wide,
2453                     "system-wide collection from all CPUs"),
2454         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
2455                    "only consider these symbols"),
2456         OPT_STRING(0, "stop-bt", &symbol_conf.bt_stop_list_str, "symbol[,symbol...]",
2457                    "Stop display of callgraph at these symbols"),
2458         OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
2459         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
2460                    "only display events for these comms"),
2461         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
2462                    "only consider symbols in these pids"),
2463         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
2464                    "only consider symbols in these tids"),
2465         OPT_UINTEGER(0, "max-stack", &scripting_max_stack,
2466                      "Set the maximum stack depth when parsing the callchain, "
2467                      "anything beyond the specified depth will be ignored. "
2468                      "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
2469         OPT_BOOLEAN('I', "show-info", &show_full_info,
2470                     "display extended information from perf.data file"),
2471         OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
2472                     "Show the path of [kernel.kallsyms]"),
2473         OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
2474                     "Show the fork/comm/exit events"),
2475         OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
2476                     "Show the mmap events"),
2477         OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
2478                     "Show context switch events (if recorded)"),
2479         OPT_BOOLEAN('\0', "show-namespace-events", &script.show_namespace_events,
2480                     "Show namespace events (if recorded)"),
2481         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
2482         OPT_INTEGER(0, "max-blocks", &max_blocks,
2483                     "Maximum number of code blocks to dump with brstackinsn"),
2484         OPT_BOOLEAN(0, "ns", &nanosecs,
2485                     "Use 9 decimal places when displaying time"),
2486         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
2487                             "Instruction Tracing options",
2488                             itrace_parse_synth_opts),
2489         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
2490                         "Show full source file name path for source lines"),
2491         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
2492                         "Enable symbol demangling"),
2493         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
2494                         "Enable kernel symbol demangling"),
2495         OPT_STRING(0, "time", &script.time_str, "str",
2496                    "Time span of interest (start,stop)"),
2497         OPT_END()
2498         };
2499         const char * const script_subcommands[] = { "record", "report", NULL };
2500         const char *script_usage[] = {
2501                 "perf script [<options>]",
2502                 "perf script [<options>] record <script> [<record-options>] <command>",
2503                 "perf script [<options>] report <script> [script-args]",
2504                 "perf script [<options>] <script> [<record-options>] <command>",
2505                 "perf script [<options>] <top-script> [script-args]",
2506                 NULL
2507         };
2508
2509         setup_scripting();
2510
2511         argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
2512                              PARSE_OPT_STOP_AT_NON_OPTION);
2513
2514         file.path = input_name;
2515         file.force = symbol_conf.force;
2516
2517         if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
2518                 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
2519                 if (!rec_script_path)
2520                         return cmd_record(argc, argv);
2521         }
2522
2523         if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
2524                 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
2525                 if (!rep_script_path) {
2526                         fprintf(stderr,
2527                                 "Please specify a valid report script"
2528                                 "(see 'perf script -l' for listing)\n");
2529                         return -1;
2530                 }
2531         }
2532
2533         if (itrace_synth_opts.callchain &&
2534             itrace_synth_opts.callchain_sz > scripting_max_stack)
2535                 scripting_max_stack = itrace_synth_opts.callchain_sz;
2536
2537         /* make sure PERF_EXEC_PATH is set for scripts */
2538         set_argv_exec_path(get_argv_exec_path());
2539
2540         if (argc && !script_name && !rec_script_path && !rep_script_path) {
2541                 int live_pipe[2];
2542                 int rep_args;
2543                 pid_t pid;
2544
2545                 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
2546                 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
2547
2548                 if (!rec_script_path && !rep_script_path) {
2549                         usage_with_options_msg(script_usage, options,
2550                                 "Couldn't find script `%s'\n\n See perf"
2551                                 " script -l for available scripts.\n", argv[0]);
2552                 }
2553
2554                 if (is_top_script(argv[0])) {
2555                         rep_args = argc - 1;
2556                 } else {
2557                         int rec_args;
2558
2559                         rep_args = has_required_arg(rep_script_path);
2560                         rec_args = (argc - 1) - rep_args;
2561                         if (rec_args < 0) {
2562                                 usage_with_options_msg(script_usage, options,
2563                                         "`%s' script requires options."
2564                                         "\n\n See perf script -l for available "
2565                                         "scripts and options.\n", argv[0]);
2566                         }
2567                 }
2568
2569                 if (pipe(live_pipe) < 0) {
2570                         perror("failed to create pipe");
2571                         return -1;
2572                 }
2573
2574                 pid = fork();
2575                 if (pid < 0) {
2576                         perror("failed to fork");
2577                         return -1;
2578                 }
2579
2580                 if (!pid) {
2581                         j = 0;
2582
2583                         dup2(live_pipe[1], 1);
2584                         close(live_pipe[0]);
2585
2586                         if (is_top_script(argv[0])) {
2587                                 system_wide = true;
2588                         } else if (!system_wide) {
2589                                 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
2590                                         err = -1;
2591                                         goto out;
2592                                 }
2593                         }
2594
2595                         __argv = malloc((argc + 6) * sizeof(const char *));
2596                         if (!__argv) {
2597                                 pr_err("malloc failed\n");
2598                                 err = -ENOMEM;
2599                                 goto out;
2600                         }
2601
2602                         __argv[j++] = "/bin/sh";
2603                         __argv[j++] = rec_script_path;
2604                         if (system_wide)
2605                                 __argv[j++] = "-a";
2606                         __argv[j++] = "-q";
2607                         __argv[j++] = "-o";
2608                         __argv[j++] = "-";
2609                         for (i = rep_args + 1; i < argc; i++)
2610                                 __argv[j++] = argv[i];
2611                         __argv[j++] = NULL;
2612
2613                         execvp("/bin/sh", (char **)__argv);
2614                         free(__argv);
2615                         exit(-1);
2616                 }
2617
2618                 dup2(live_pipe[0], 0);
2619                 close(live_pipe[1]);
2620
2621                 __argv = malloc((argc + 4) * sizeof(const char *));
2622                 if (!__argv) {
2623                         pr_err("malloc failed\n");
2624                         err = -ENOMEM;
2625                         goto out;
2626                 }
2627
2628                 j = 0;
2629                 __argv[j++] = "/bin/sh";
2630                 __argv[j++] = rep_script_path;
2631                 for (i = 1; i < rep_args + 1; i++)
2632                         __argv[j++] = argv[i];
2633                 __argv[j++] = "-i";
2634                 __argv[j++] = "-";
2635                 __argv[j++] = NULL;
2636
2637                 execvp("/bin/sh", (char **)__argv);
2638                 free(__argv);
2639                 exit(-1);
2640         }
2641
2642         if (rec_script_path)
2643                 script_path = rec_script_path;
2644         if (rep_script_path)
2645                 script_path = rep_script_path;
2646
2647         if (script_path) {
2648                 j = 0;
2649
2650                 if (!rec_script_path)
2651                         system_wide = false;
2652                 else if (!system_wide) {
2653                         if (have_cmd(argc - 1, &argv[1]) != 0) {
2654                                 err = -1;
2655                                 goto out;
2656                         }
2657                 }
2658
2659                 __argv = malloc((argc + 2) * sizeof(const char *));
2660                 if (!__argv) {
2661                         pr_err("malloc failed\n");
2662                         err = -ENOMEM;
2663                         goto out;
2664                 }
2665
2666                 __argv[j++] = "/bin/sh";
2667                 __argv[j++] = script_path;
2668                 if (system_wide)
2669                         __argv[j++] = "-a";
2670                 for (i = 2; i < argc; i++)
2671                         __argv[j++] = argv[i];
2672                 __argv[j++] = NULL;
2673
2674                 execvp("/bin/sh", (char **)__argv);
2675                 free(__argv);
2676                 exit(-1);
2677         }
2678
2679         if (!script_name)
2680                 setup_pager();
2681
2682         session = perf_session__new(&file, false, &script.tool);
2683         if (session == NULL)
2684                 return -1;
2685
2686         if (header || header_only) {
2687                 perf_session__fprintf_info(session, stdout, show_full_info);
2688                 if (header_only)
2689                         goto out_delete;
2690         }
2691
2692         if (symbol__init(&session->header.env) < 0)
2693                 goto out_delete;
2694
2695         script.session = session;
2696         script__setup_sample_type(&script);
2697
2698         if (output[PERF_TYPE_HARDWARE].fields & PERF_OUTPUT_CALLINDENT)
2699                 itrace_synth_opts.thread_stack = true;
2700
2701         session->itrace_synth_opts = &itrace_synth_opts;
2702
2703         if (cpu_list) {
2704                 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
2705                 if (err < 0)
2706                         goto out_delete;
2707         }
2708
2709         if (!no_callchain)
2710                 symbol_conf.use_callchain = true;
2711         else
2712                 symbol_conf.use_callchain = false;
2713
2714         if (session->tevent.pevent &&
2715             pevent_set_function_resolver(session->tevent.pevent,
2716                                          machine__resolve_kernel_addr,
2717                                          &session->machines.host) < 0) {
2718                 pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
2719                 return -1;
2720         }
2721
2722         if (generate_script_lang) {
2723                 struct stat perf_stat;
2724                 int input;
2725
2726                 if (output_set_by_user()) {
2727                         fprintf(stderr,
2728                                 "custom fields not supported for generated scripts");
2729                         err = -EINVAL;
2730                         goto out_delete;
2731                 }
2732
2733                 input = open(file.path, O_RDONLY);      /* input_name */
2734                 if (input < 0) {
2735                         err = -errno;
2736                         perror("failed to open file");
2737                         goto out_delete;
2738                 }
2739
2740                 err = fstat(input, &perf_stat);
2741                 if (err < 0) {
2742                         perror("failed to stat file");
2743                         goto out_delete;
2744                 }
2745
2746                 if (!perf_stat.st_size) {
2747                         fprintf(stderr, "zero-sized file, nothing to do!\n");
2748                         goto out_delete;
2749                 }
2750
2751                 scripting_ops = script_spec__lookup(generate_script_lang);
2752                 if (!scripting_ops) {
2753                         fprintf(stderr, "invalid language specifier");
2754                         err = -ENOENT;
2755                         goto out_delete;
2756                 }
2757
2758                 err = scripting_ops->generate_script(session->tevent.pevent,
2759                                                      "perf-script");
2760                 goto out_delete;
2761         }
2762
2763         if (script_name) {
2764                 err = scripting_ops->start_script(script_name, argc, argv);
2765                 if (err)
2766                         goto out_delete;
2767                 pr_debug("perf script started with script %s\n\n", script_name);
2768                 script_started = true;
2769         }
2770
2771
2772         err = perf_session__check_output_opt(session);
2773         if (err < 0)
2774                 goto out_delete;
2775
2776         /* needs to be parsed after looking up reference time */
2777         if (perf_time__parse_str(&script.ptime, script.time_str) != 0) {
2778                 pr_err("Invalid time string\n");
2779                 return -EINVAL;
2780         }
2781
2782         err = __cmd_script(&script);
2783
2784         flush_scripting();
2785
2786 out_delete:
2787         perf_evlist__free_stats(session->evlist);
2788         perf_session__delete(session);
2789
2790         if (script_started)
2791                 cleanup_scripting();
2792 out:
2793         return err;
2794 }