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