1 #include <traceevent/event-parse.h> 2 #include "builtin.h" 3 #include "util/color.h" 4 #include "util/debug.h" 5 #include "util/evlist.h" 6 #include "util/machine.h" 7 #include "util/session.h" 8 #include "util/thread.h" 9 #include "util/parse-options.h" 10 #include "util/strlist.h" 11 #include "util/intlist.h" 12 #include "util/thread_map.h" 13 #include "util/stat.h" 14 #include "trace-event.h" 15 #include "util/parse-events.h" 16 17 #include <libaudit.h> 18 #include <stdlib.h> 19 #include <sys/eventfd.h> 20 #include <sys/mman.h> 21 #include <linux/futex.h> 22 23 /* For older distros: */ 24 #ifndef MAP_STACK 25 # define MAP_STACK 0x20000 26 #endif 27 28 #ifndef MADV_HWPOISON 29 # define MADV_HWPOISON 100 30 #endif 31 32 #ifndef MADV_MERGEABLE 33 # define MADV_MERGEABLE 12 34 #endif 35 36 #ifndef MADV_UNMERGEABLE 37 # define MADV_UNMERGEABLE 13 38 #endif 39 40 #ifndef EFD_SEMAPHORE 41 # define EFD_SEMAPHORE 1 42 #endif 43 44 struct tp_field { 45 int offset; 46 union { 47 u64 (*integer)(struct tp_field *field, struct perf_sample *sample); 48 void *(*pointer)(struct tp_field *field, struct perf_sample *sample); 49 }; 50 }; 51 52 #define TP_UINT_FIELD(bits) \ 53 static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ 54 { \ 55 return *(u##bits *)(sample->raw_data + field->offset); \ 56 } 57 58 TP_UINT_FIELD(8); 59 TP_UINT_FIELD(16); 60 TP_UINT_FIELD(32); 61 TP_UINT_FIELD(64); 62 63 #define TP_UINT_FIELD__SWAPPED(bits) \ 64 static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ 65 { \ 66 u##bits value = *(u##bits *)(sample->raw_data + field->offset); \ 67 return bswap_##bits(value);\ 68 } 69 70 TP_UINT_FIELD__SWAPPED(16); 71 TP_UINT_FIELD__SWAPPED(32); 72 TP_UINT_FIELD__SWAPPED(64); 73 74 static int tp_field__init_uint(struct tp_field *field, 75 struct format_field *format_field, 76 bool needs_swap) 77 { 78 field->offset = format_field->offset; 79 80 switch (format_field->size) { 81 case 1: 82 field->integer = tp_field__u8; 83 break; 84 case 2: 85 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; 86 break; 87 case 4: 88 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; 89 break; 90 case 8: 91 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; 92 break; 93 default: 94 return -1; 95 } 96 97 return 0; 98 } 99 100 static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) 101 { 102 return sample->raw_data + field->offset; 103 } 104 105 static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field) 106 { 107 field->offset = format_field->offset; 108 field->pointer = tp_field__ptr; 109 return 0; 110 } 111 112 struct syscall_tp { 113 struct tp_field id; 114 union { 115 struct tp_field args, ret; 116 }; 117 }; 118 119 static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel, 120 struct tp_field *field, 121 const char *name) 122 { 123 struct format_field *format_field = perf_evsel__field(evsel, name); 124 125 if (format_field == NULL) 126 return -1; 127 128 return tp_field__init_uint(field, format_field, evsel->needs_swap); 129 } 130 131 #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ 132 ({ struct syscall_tp *sc = evsel->priv;\ 133 perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) 134 135 static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel, 136 struct tp_field *field, 137 const char *name) 138 { 139 struct format_field *format_field = perf_evsel__field(evsel, name); 140 141 if (format_field == NULL) 142 return -1; 143 144 return tp_field__init_ptr(field, format_field); 145 } 146 147 #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ 148 ({ struct syscall_tp *sc = evsel->priv;\ 149 perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) 150 151 static void perf_evsel__delete_priv(struct perf_evsel *evsel) 152 { 153 zfree(&evsel->priv); 154 perf_evsel__delete(evsel); 155 } 156 157 static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler) 158 { 159 evsel->priv = malloc(sizeof(struct syscall_tp)); 160 if (evsel->priv != NULL) { 161 if (perf_evsel__init_sc_tp_uint_field(evsel, id)) 162 goto out_delete; 163 164 evsel->handler = handler; 165 return 0; 166 } 167 168 return -ENOMEM; 169 170 out_delete: 171 zfree(&evsel->priv); 172 return -ENOENT; 173 } 174 175 static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler) 176 { 177 struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); 178 179 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ 180 if (evsel == NULL) 181 evsel = perf_evsel__newtp("syscalls", direction); 182 183 if (evsel) { 184 if (perf_evsel__init_syscall_tp(evsel, handler)) 185 goto out_delete; 186 } 187 188 return evsel; 189 190 out_delete: 191 perf_evsel__delete_priv(evsel); 192 return NULL; 193 } 194 195 #define perf_evsel__sc_tp_uint(evsel, name, sample) \ 196 ({ struct syscall_tp *fields = evsel->priv; \ 197 fields->name.integer(&fields->name, sample); }) 198 199 #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ 200 ({ struct syscall_tp *fields = evsel->priv; \ 201 fields->name.pointer(&fields->name, sample); }) 202 203 static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist, 204 void *sys_enter_handler, 205 void *sys_exit_handler) 206 { 207 int ret = -1; 208 struct perf_evsel *sys_enter, *sys_exit; 209 210 sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler); 211 if (sys_enter == NULL) 212 goto out; 213 214 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) 215 goto out_delete_sys_enter; 216 217 sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler); 218 if (sys_exit == NULL) 219 goto out_delete_sys_enter; 220 221 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) 222 goto out_delete_sys_exit; 223 224 perf_evlist__add(evlist, sys_enter); 225 perf_evlist__add(evlist, sys_exit); 226 227 ret = 0; 228 out: 229 return ret; 230 231 out_delete_sys_exit: 232 perf_evsel__delete_priv(sys_exit); 233 out_delete_sys_enter: 234 perf_evsel__delete_priv(sys_enter); 235 goto out; 236 } 237 238 239 struct syscall_arg { 240 unsigned long val; 241 struct thread *thread; 242 struct trace *trace; 243 void *parm; 244 u8 idx; 245 u8 mask; 246 }; 247 248 struct strarray { 249 int offset; 250 int nr_entries; 251 const char **entries; 252 }; 253 254 #define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \ 255 .nr_entries = ARRAY_SIZE(array), \ 256 .entries = array, \ 257 } 258 259 #define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \ 260 .offset = off, \ 261 .nr_entries = ARRAY_SIZE(array), \ 262 .entries = array, \ 263 } 264 265 static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, 266 const char *intfmt, 267 struct syscall_arg *arg) 268 { 269 struct strarray *sa = arg->parm; 270 int idx = arg->val - sa->offset; 271 272 if (idx < 0 || idx >= sa->nr_entries) 273 return scnprintf(bf, size, intfmt, arg->val); 274 275 return scnprintf(bf, size, "%s", sa->entries[idx]); 276 } 277 278 static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, 279 struct syscall_arg *arg) 280 { 281 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); 282 } 283 284 #define SCA_STRARRAY syscall_arg__scnprintf_strarray 285 286 #if defined(__i386__) || defined(__x86_64__) 287 /* 288 * FIXME: Make this available to all arches as soon as the ioctl beautifier 289 * gets rewritten to support all arches. 290 */ 291 static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size, 292 struct syscall_arg *arg) 293 { 294 return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg); 295 } 296 297 #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray 298 #endif /* defined(__i386__) || defined(__x86_64__) */ 299 300 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, 301 struct syscall_arg *arg); 302 303 #define SCA_FD syscall_arg__scnprintf_fd 304 305 static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, 306 struct syscall_arg *arg) 307 { 308 int fd = arg->val; 309 310 if (fd == AT_FDCWD) 311 return scnprintf(bf, size, "CWD"); 312 313 return syscall_arg__scnprintf_fd(bf, size, arg); 314 } 315 316 #define SCA_FDAT syscall_arg__scnprintf_fd_at 317 318 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, 319 struct syscall_arg *arg); 320 321 #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd 322 323 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, 324 struct syscall_arg *arg) 325 { 326 return scnprintf(bf, size, "%#lx", arg->val); 327 } 328 329 #define SCA_HEX syscall_arg__scnprintf_hex 330 331 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, 332 struct syscall_arg *arg) 333 { 334 int printed = 0, prot = arg->val; 335 336 if (prot == PROT_NONE) 337 return scnprintf(bf, size, "NONE"); 338 #define P_MMAP_PROT(n) \ 339 if (prot & PROT_##n) { \ 340 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 341 prot &= ~PROT_##n; \ 342 } 343 344 P_MMAP_PROT(EXEC); 345 P_MMAP_PROT(READ); 346 P_MMAP_PROT(WRITE); 347 #ifdef PROT_SEM 348 P_MMAP_PROT(SEM); 349 #endif 350 P_MMAP_PROT(GROWSDOWN); 351 P_MMAP_PROT(GROWSUP); 352 #undef P_MMAP_PROT 353 354 if (prot) 355 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot); 356 357 return printed; 358 } 359 360 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot 361 362 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, 363 struct syscall_arg *arg) 364 { 365 int printed = 0, flags = arg->val; 366 367 #define P_MMAP_FLAG(n) \ 368 if (flags & MAP_##n) { \ 369 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 370 flags &= ~MAP_##n; \ 371 } 372 373 P_MMAP_FLAG(SHARED); 374 P_MMAP_FLAG(PRIVATE); 375 #ifdef MAP_32BIT 376 P_MMAP_FLAG(32BIT); 377 #endif 378 P_MMAP_FLAG(ANONYMOUS); 379 P_MMAP_FLAG(DENYWRITE); 380 P_MMAP_FLAG(EXECUTABLE); 381 P_MMAP_FLAG(FILE); 382 P_MMAP_FLAG(FIXED); 383 P_MMAP_FLAG(GROWSDOWN); 384 #ifdef MAP_HUGETLB 385 P_MMAP_FLAG(HUGETLB); 386 #endif 387 P_MMAP_FLAG(LOCKED); 388 P_MMAP_FLAG(NONBLOCK); 389 P_MMAP_FLAG(NORESERVE); 390 P_MMAP_FLAG(POPULATE); 391 P_MMAP_FLAG(STACK); 392 #ifdef MAP_UNINITIALIZED 393 P_MMAP_FLAG(UNINITIALIZED); 394 #endif 395 #undef P_MMAP_FLAG 396 397 if (flags) 398 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 399 400 return printed; 401 } 402 403 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags 404 405 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, 406 struct syscall_arg *arg) 407 { 408 int behavior = arg->val; 409 410 switch (behavior) { 411 #define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n) 412 P_MADV_BHV(NORMAL); 413 P_MADV_BHV(RANDOM); 414 P_MADV_BHV(SEQUENTIAL); 415 P_MADV_BHV(WILLNEED); 416 P_MADV_BHV(DONTNEED); 417 P_MADV_BHV(REMOVE); 418 P_MADV_BHV(DONTFORK); 419 P_MADV_BHV(DOFORK); 420 P_MADV_BHV(HWPOISON); 421 #ifdef MADV_SOFT_OFFLINE 422 P_MADV_BHV(SOFT_OFFLINE); 423 #endif 424 P_MADV_BHV(MERGEABLE); 425 P_MADV_BHV(UNMERGEABLE); 426 #ifdef MADV_HUGEPAGE 427 P_MADV_BHV(HUGEPAGE); 428 #endif 429 #ifdef MADV_NOHUGEPAGE 430 P_MADV_BHV(NOHUGEPAGE); 431 #endif 432 #ifdef MADV_DONTDUMP 433 P_MADV_BHV(DONTDUMP); 434 #endif 435 #ifdef MADV_DODUMP 436 P_MADV_BHV(DODUMP); 437 #endif 438 #undef P_MADV_PHV 439 default: break; 440 } 441 442 return scnprintf(bf, size, "%#x", behavior); 443 } 444 445 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior 446 447 static size_t syscall_arg__scnprintf_flock(char *bf, size_t size, 448 struct syscall_arg *arg) 449 { 450 int printed = 0, op = arg->val; 451 452 if (op == 0) 453 return scnprintf(bf, size, "NONE"); 454 #define P_CMD(cmd) \ 455 if ((op & LOCK_##cmd) == LOCK_##cmd) { \ 456 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \ 457 op &= ~LOCK_##cmd; \ 458 } 459 460 P_CMD(SH); 461 P_CMD(EX); 462 P_CMD(NB); 463 P_CMD(UN); 464 P_CMD(MAND); 465 P_CMD(RW); 466 P_CMD(READ); 467 P_CMD(WRITE); 468 #undef P_OP 469 470 if (op) 471 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op); 472 473 return printed; 474 } 475 476 #define SCA_FLOCK syscall_arg__scnprintf_flock 477 478 static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg) 479 { 480 enum syscall_futex_args { 481 SCF_UADDR = (1 << 0), 482 SCF_OP = (1 << 1), 483 SCF_VAL = (1 << 2), 484 SCF_TIMEOUT = (1 << 3), 485 SCF_UADDR2 = (1 << 4), 486 SCF_VAL3 = (1 << 5), 487 }; 488 int op = arg->val; 489 int cmd = op & FUTEX_CMD_MASK; 490 size_t printed = 0; 491 492 switch (cmd) { 493 #define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n); 494 P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break; 495 P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 496 P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 497 P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break; 498 P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break; 499 P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break; 500 P_FUTEX_OP(WAKE_OP); break; 501 P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 502 P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break; 503 P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break; 504 P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break; 505 P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break; 506 P_FUTEX_OP(WAIT_REQUEUE_PI); break; 507 default: printed = scnprintf(bf, size, "%#x", cmd); break; 508 } 509 510 if (op & FUTEX_PRIVATE_FLAG) 511 printed += scnprintf(bf + printed, size - printed, "|PRIV"); 512 513 if (op & FUTEX_CLOCK_REALTIME) 514 printed += scnprintf(bf + printed, size - printed, "|CLKRT"); 515 516 return printed; 517 } 518 519 #define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op 520 521 static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; 522 static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); 523 524 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; 525 static DEFINE_STRARRAY(itimers); 526 527 static const char *whences[] = { "SET", "CUR", "END", 528 #ifdef SEEK_DATA 529 "DATA", 530 #endif 531 #ifdef SEEK_HOLE 532 "HOLE", 533 #endif 534 }; 535 static DEFINE_STRARRAY(whences); 536 537 static const char *fcntl_cmds[] = { 538 "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", 539 "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64", 540 "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX", 541 "F_GETOWNER_UIDS", 542 }; 543 static DEFINE_STRARRAY(fcntl_cmds); 544 545 static const char *rlimit_resources[] = { 546 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", 547 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", 548 "RTTIME", 549 }; 550 static DEFINE_STRARRAY(rlimit_resources); 551 552 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; 553 static DEFINE_STRARRAY(sighow); 554 555 static const char *clockid[] = { 556 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", 557 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", 558 }; 559 static DEFINE_STRARRAY(clockid); 560 561 static const char *socket_families[] = { 562 "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM", 563 "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI", 564 "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC", 565 "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC", 566 "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF", 567 "ALG", "NFC", "VSOCK", 568 }; 569 static DEFINE_STRARRAY(socket_families); 570 571 #ifndef SOCK_TYPE_MASK 572 #define SOCK_TYPE_MASK 0xf 573 #endif 574 575 static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size, 576 struct syscall_arg *arg) 577 { 578 size_t printed; 579 int type = arg->val, 580 flags = type & ~SOCK_TYPE_MASK; 581 582 type &= SOCK_TYPE_MASK; 583 /* 584 * Can't use a strarray, MIPS may override for ABI reasons. 585 */ 586 switch (type) { 587 #define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break; 588 P_SK_TYPE(STREAM); 589 P_SK_TYPE(DGRAM); 590 P_SK_TYPE(RAW); 591 P_SK_TYPE(RDM); 592 P_SK_TYPE(SEQPACKET); 593 P_SK_TYPE(DCCP); 594 P_SK_TYPE(PACKET); 595 #undef P_SK_TYPE 596 default: 597 printed = scnprintf(bf, size, "%#x", type); 598 } 599 600 #define P_SK_FLAG(n) \ 601 if (flags & SOCK_##n) { \ 602 printed += scnprintf(bf + printed, size - printed, "|%s", #n); \ 603 flags &= ~SOCK_##n; \ 604 } 605 606 P_SK_FLAG(CLOEXEC); 607 P_SK_FLAG(NONBLOCK); 608 #undef P_SK_FLAG 609 610 if (flags) 611 printed += scnprintf(bf + printed, size - printed, "|%#x", flags); 612 613 return printed; 614 } 615 616 #define SCA_SK_TYPE syscall_arg__scnprintf_socket_type 617 618 #ifndef MSG_PROBE 619 #define MSG_PROBE 0x10 620 #endif 621 #ifndef MSG_WAITFORONE 622 #define MSG_WAITFORONE 0x10000 623 #endif 624 #ifndef MSG_SENDPAGE_NOTLAST 625 #define MSG_SENDPAGE_NOTLAST 0x20000 626 #endif 627 #ifndef MSG_FASTOPEN 628 #define MSG_FASTOPEN 0x20000000 629 #endif 630 631 static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size, 632 struct syscall_arg *arg) 633 { 634 int printed = 0, flags = arg->val; 635 636 if (flags == 0) 637 return scnprintf(bf, size, "NONE"); 638 #define P_MSG_FLAG(n) \ 639 if (flags & MSG_##n) { \ 640 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 641 flags &= ~MSG_##n; \ 642 } 643 644 P_MSG_FLAG(OOB); 645 P_MSG_FLAG(PEEK); 646 P_MSG_FLAG(DONTROUTE); 647 P_MSG_FLAG(TRYHARD); 648 P_MSG_FLAG(CTRUNC); 649 P_MSG_FLAG(PROBE); 650 P_MSG_FLAG(TRUNC); 651 P_MSG_FLAG(DONTWAIT); 652 P_MSG_FLAG(EOR); 653 P_MSG_FLAG(WAITALL); 654 P_MSG_FLAG(FIN); 655 P_MSG_FLAG(SYN); 656 P_MSG_FLAG(CONFIRM); 657 P_MSG_FLAG(RST); 658 P_MSG_FLAG(ERRQUEUE); 659 P_MSG_FLAG(NOSIGNAL); 660 P_MSG_FLAG(MORE); 661 P_MSG_FLAG(WAITFORONE); 662 P_MSG_FLAG(SENDPAGE_NOTLAST); 663 P_MSG_FLAG(FASTOPEN); 664 P_MSG_FLAG(CMSG_CLOEXEC); 665 #undef P_MSG_FLAG 666 667 if (flags) 668 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 669 670 return printed; 671 } 672 673 #define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags 674 675 static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, 676 struct syscall_arg *arg) 677 { 678 size_t printed = 0; 679 int mode = arg->val; 680 681 if (mode == F_OK) /* 0 */ 682 return scnprintf(bf, size, "F"); 683 #define P_MODE(n) \ 684 if (mode & n##_OK) { \ 685 printed += scnprintf(bf + printed, size - printed, "%s", #n); \ 686 mode &= ~n##_OK; \ 687 } 688 689 P_MODE(R); 690 P_MODE(W); 691 P_MODE(X); 692 #undef P_MODE 693 694 if (mode) 695 printed += scnprintf(bf + printed, size - printed, "|%#x", mode); 696 697 return printed; 698 } 699 700 #define SCA_ACCMODE syscall_arg__scnprintf_access_mode 701 702 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, 703 struct syscall_arg *arg) 704 { 705 int printed = 0, flags = arg->val; 706 707 if (!(flags & O_CREAT)) 708 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */ 709 710 if (flags == 0) 711 return scnprintf(bf, size, "RDONLY"); 712 #define P_FLAG(n) \ 713 if (flags & O_##n) { \ 714 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 715 flags &= ~O_##n; \ 716 } 717 718 P_FLAG(APPEND); 719 P_FLAG(ASYNC); 720 P_FLAG(CLOEXEC); 721 P_FLAG(CREAT); 722 P_FLAG(DIRECT); 723 P_FLAG(DIRECTORY); 724 P_FLAG(EXCL); 725 P_FLAG(LARGEFILE); 726 P_FLAG(NOATIME); 727 P_FLAG(NOCTTY); 728 #ifdef O_NONBLOCK 729 P_FLAG(NONBLOCK); 730 #elif O_NDELAY 731 P_FLAG(NDELAY); 732 #endif 733 #ifdef O_PATH 734 P_FLAG(PATH); 735 #endif 736 P_FLAG(RDWR); 737 #ifdef O_DSYNC 738 if ((flags & O_SYNC) == O_SYNC) 739 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC"); 740 else { 741 P_FLAG(DSYNC); 742 } 743 #else 744 P_FLAG(SYNC); 745 #endif 746 P_FLAG(TRUNC); 747 P_FLAG(WRONLY); 748 #undef P_FLAG 749 750 if (flags) 751 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 752 753 return printed; 754 } 755 756 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags 757 758 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, 759 struct syscall_arg *arg) 760 { 761 int printed = 0, flags = arg->val; 762 763 if (flags == 0) 764 return scnprintf(bf, size, "NONE"); 765 #define P_FLAG(n) \ 766 if (flags & EFD_##n) { \ 767 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 768 flags &= ~EFD_##n; \ 769 } 770 771 P_FLAG(SEMAPHORE); 772 P_FLAG(CLOEXEC); 773 P_FLAG(NONBLOCK); 774 #undef P_FLAG 775 776 if (flags) 777 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 778 779 return printed; 780 } 781 782 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags 783 784 static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, 785 struct syscall_arg *arg) 786 { 787 int printed = 0, flags = arg->val; 788 789 #define P_FLAG(n) \ 790 if (flags & O_##n) { \ 791 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ 792 flags &= ~O_##n; \ 793 } 794 795 P_FLAG(CLOEXEC); 796 P_FLAG(NONBLOCK); 797 #undef P_FLAG 798 799 if (flags) 800 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); 801 802 return printed; 803 } 804 805 #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags 806 807 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg) 808 { 809 int sig = arg->val; 810 811 switch (sig) { 812 #define P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n) 813 P_SIGNUM(HUP); 814 P_SIGNUM(INT); 815 P_SIGNUM(QUIT); 816 P_SIGNUM(ILL); 817 P_SIGNUM(TRAP); 818 P_SIGNUM(ABRT); 819 P_SIGNUM(BUS); 820 P_SIGNUM(FPE); 821 P_SIGNUM(KILL); 822 P_SIGNUM(USR1); 823 P_SIGNUM(SEGV); 824 P_SIGNUM(USR2); 825 P_SIGNUM(PIPE); 826 P_SIGNUM(ALRM); 827 P_SIGNUM(TERM); 828 P_SIGNUM(CHLD); 829 P_SIGNUM(CONT); 830 P_SIGNUM(STOP); 831 P_SIGNUM(TSTP); 832 P_SIGNUM(TTIN); 833 P_SIGNUM(TTOU); 834 P_SIGNUM(URG); 835 P_SIGNUM(XCPU); 836 P_SIGNUM(XFSZ); 837 P_SIGNUM(VTALRM); 838 P_SIGNUM(PROF); 839 P_SIGNUM(WINCH); 840 P_SIGNUM(IO); 841 P_SIGNUM(PWR); 842 P_SIGNUM(SYS); 843 #ifdef SIGEMT 844 P_SIGNUM(EMT); 845 #endif 846 #ifdef SIGSTKFLT 847 P_SIGNUM(STKFLT); 848 #endif 849 #ifdef SIGSWI 850 P_SIGNUM(SWI); 851 #endif 852 default: break; 853 } 854 855 return scnprintf(bf, size, "%#x", sig); 856 } 857 858 #define SCA_SIGNUM syscall_arg__scnprintf_signum 859 860 #if defined(__i386__) || defined(__x86_64__) 861 /* 862 * FIXME: Make this available to all arches. 863 */ 864 #define TCGETS 0x5401 865 866 static const char *tioctls[] = { 867 "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW", 868 "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL", 869 "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI", 870 "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC", 871 "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX", 872 "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO", 873 "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK", 874 "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2", 875 "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK", 876 "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG", 877 "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL", 878 [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG", 879 "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS", 880 "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI", 881 "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE", 882 }; 883 884 static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401); 885 #endif /* defined(__i386__) || defined(__x86_64__) */ 886 887 #define STRARRAY(arg, name, array) \ 888 .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \ 889 .arg_parm = { [arg] = &strarray__##array, } 890 891 static struct syscall_fmt { 892 const char *name; 893 const char *alias; 894 size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg); 895 void *arg_parm[6]; 896 bool errmsg; 897 bool timeout; 898 bool hexret; 899 } syscall_fmts[] = { 900 { .name = "access", .errmsg = true, 901 .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, }, 902 { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, 903 { .name = "brk", .hexret = true, 904 .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, }, 905 { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), }, 906 { .name = "close", .errmsg = true, 907 .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, }, 908 { .name = "connect", .errmsg = true, }, 909 { .name = "dup", .errmsg = true, 910 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 911 { .name = "dup2", .errmsg = true, 912 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 913 { .name = "dup3", .errmsg = true, 914 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 915 { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), }, 916 { .name = "eventfd2", .errmsg = true, 917 .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, }, 918 { .name = "faccessat", .errmsg = true, 919 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 920 { .name = "fadvise64", .errmsg = true, 921 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 922 { .name = "fallocate", .errmsg = true, 923 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 924 { .name = "fchdir", .errmsg = true, 925 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 926 { .name = "fchmod", .errmsg = true, 927 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 928 { .name = "fchmodat", .errmsg = true, 929 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 930 { .name = "fchown", .errmsg = true, 931 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 932 { .name = "fchownat", .errmsg = true, 933 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 934 { .name = "fcntl", .errmsg = true, 935 .arg_scnprintf = { [0] = SCA_FD, /* fd */ 936 [1] = SCA_STRARRAY, /* cmd */ }, 937 .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, }, 938 { .name = "fdatasync", .errmsg = true, 939 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 940 { .name = "flock", .errmsg = true, 941 .arg_scnprintf = { [0] = SCA_FD, /* fd */ 942 [1] = SCA_FLOCK, /* cmd */ }, }, 943 { .name = "fsetxattr", .errmsg = true, 944 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 945 { .name = "fstat", .errmsg = true, .alias = "newfstat", 946 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 947 { .name = "fstatat", .errmsg = true, .alias = "newfstatat", 948 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 949 { .name = "fstatfs", .errmsg = true, 950 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 951 { .name = "fsync", .errmsg = true, 952 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 953 { .name = "ftruncate", .errmsg = true, 954 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 955 { .name = "futex", .errmsg = true, 956 .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, }, 957 { .name = "futimesat", .errmsg = true, 958 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 959 { .name = "getdents", .errmsg = true, 960 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 961 { .name = "getdents64", .errmsg = true, 962 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 963 { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), }, 964 { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, 965 { .name = "ioctl", .errmsg = true, 966 .arg_scnprintf = { [0] = SCA_FD, /* fd */ 967 #if defined(__i386__) || defined(__x86_64__) 968 /* 969 * FIXME: Make this available to all arches. 970 */ 971 [1] = SCA_STRHEXARRAY, /* cmd */ 972 [2] = SCA_HEX, /* arg */ }, 973 .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, }, 974 #else 975 [2] = SCA_HEX, /* arg */ }, }, 976 #endif 977 { .name = "kill", .errmsg = true, 978 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, 979 { .name = "linkat", .errmsg = true, 980 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 981 { .name = "lseek", .errmsg = true, 982 .arg_scnprintf = { [0] = SCA_FD, /* fd */ 983 [2] = SCA_STRARRAY, /* whence */ }, 984 .arg_parm = { [2] = &strarray__whences, /* whence */ }, }, 985 { .name = "lstat", .errmsg = true, .alias = "newlstat", }, 986 { .name = "madvise", .errmsg = true, 987 .arg_scnprintf = { [0] = SCA_HEX, /* start */ 988 [2] = SCA_MADV_BHV, /* behavior */ }, }, 989 { .name = "mkdirat", .errmsg = true, 990 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 991 { .name = "mknodat", .errmsg = true, 992 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 993 { .name = "mlock", .errmsg = true, 994 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, 995 { .name = "mlockall", .errmsg = true, 996 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, 997 { .name = "mmap", .hexret = true, 998 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ 999 [2] = SCA_MMAP_PROT, /* prot */ 1000 [3] = SCA_MMAP_FLAGS, /* flags */ 1001 [4] = SCA_FD, /* fd */ }, }, 1002 { .name = "mprotect", .errmsg = true, 1003 .arg_scnprintf = { [0] = SCA_HEX, /* start */ 1004 [2] = SCA_MMAP_PROT, /* prot */ }, }, 1005 { .name = "mremap", .hexret = true, 1006 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ 1007 [4] = SCA_HEX, /* new_addr */ }, }, 1008 { .name = "munlock", .errmsg = true, 1009 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, 1010 { .name = "munmap", .errmsg = true, 1011 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, 1012 { .name = "name_to_handle_at", .errmsg = true, 1013 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1014 { .name = "newfstatat", .errmsg = true, 1015 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1016 { .name = "open", .errmsg = true, 1017 .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, }, 1018 { .name = "open_by_handle_at", .errmsg = true, 1019 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ 1020 [2] = SCA_OPEN_FLAGS, /* flags */ }, }, 1021 { .name = "openat", .errmsg = true, 1022 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ 1023 [2] = SCA_OPEN_FLAGS, /* flags */ }, }, 1024 { .name = "pipe2", .errmsg = true, 1025 .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, }, 1026 { .name = "poll", .errmsg = true, .timeout = true, }, 1027 { .name = "ppoll", .errmsg = true, .timeout = true, }, 1028 { .name = "pread", .errmsg = true, .alias = "pread64", 1029 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1030 { .name = "preadv", .errmsg = true, .alias = "pread", 1031 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1032 { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), }, 1033 { .name = "pwrite", .errmsg = true, .alias = "pwrite64", 1034 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1035 { .name = "pwritev", .errmsg = true, 1036 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1037 { .name = "read", .errmsg = true, 1038 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1039 { .name = "readlinkat", .errmsg = true, 1040 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1041 { .name = "readv", .errmsg = true, 1042 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1043 { .name = "recvfrom", .errmsg = true, 1044 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, 1045 { .name = "recvmmsg", .errmsg = true, 1046 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, 1047 { .name = "recvmsg", .errmsg = true, 1048 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, 1049 { .name = "renameat", .errmsg = true, 1050 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1051 { .name = "rt_sigaction", .errmsg = true, 1052 .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, }, 1053 { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), }, 1054 { .name = "rt_sigqueueinfo", .errmsg = true, 1055 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, 1056 { .name = "rt_tgsigqueueinfo", .errmsg = true, 1057 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, 1058 { .name = "select", .errmsg = true, .timeout = true, }, 1059 { .name = "sendmmsg", .errmsg = true, 1060 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, 1061 { .name = "sendmsg", .errmsg = true, 1062 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, 1063 { .name = "sendto", .errmsg = true, 1064 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, 1065 { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), }, 1066 { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, 1067 { .name = "shutdown", .errmsg = true, 1068 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1069 { .name = "socket", .errmsg = true, 1070 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ 1071 [1] = SCA_SK_TYPE, /* type */ }, 1072 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, 1073 { .name = "socketpair", .errmsg = true, 1074 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ 1075 [1] = SCA_SK_TYPE, /* type */ }, 1076 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, 1077 { .name = "stat", .errmsg = true, .alias = "newstat", }, 1078 { .name = "symlinkat", .errmsg = true, 1079 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1080 { .name = "tgkill", .errmsg = true, 1081 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, 1082 { .name = "tkill", .errmsg = true, 1083 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, 1084 { .name = "uname", .errmsg = true, .alias = "newuname", }, 1085 { .name = "unlinkat", .errmsg = true, 1086 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 1087 { .name = "utimensat", .errmsg = true, 1088 .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, }, 1089 { .name = "write", .errmsg = true, 1090 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1091 { .name = "writev", .errmsg = true, 1092 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 1093 }; 1094 1095 static int syscall_fmt__cmp(const void *name, const void *fmtp) 1096 { 1097 const struct syscall_fmt *fmt = fmtp; 1098 return strcmp(name, fmt->name); 1099 } 1100 1101 static struct syscall_fmt *syscall_fmt__find(const char *name) 1102 { 1103 const int nmemb = ARRAY_SIZE(syscall_fmts); 1104 return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); 1105 } 1106 1107 struct syscall { 1108 struct event_format *tp_format; 1109 const char *name; 1110 bool filtered; 1111 bool is_exit; 1112 struct syscall_fmt *fmt; 1113 size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); 1114 void **arg_parm; 1115 }; 1116 1117 static size_t fprintf_duration(unsigned long t, FILE *fp) 1118 { 1119 double duration = (double)t / NSEC_PER_MSEC; 1120 size_t printed = fprintf(fp, "("); 1121 1122 if (duration >= 1.0) 1123 printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); 1124 else if (duration >= 0.01) 1125 printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); 1126 else 1127 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); 1128 return printed + fprintf(fp, "): "); 1129 } 1130 1131 struct thread_trace { 1132 u64 entry_time; 1133 u64 exit_time; 1134 bool entry_pending; 1135 unsigned long nr_events; 1136 char *entry_str; 1137 double runtime_ms; 1138 struct { 1139 int max; 1140 char **table; 1141 } paths; 1142 1143 struct intlist *syscall_stats; 1144 }; 1145 1146 static struct thread_trace *thread_trace__new(void) 1147 { 1148 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); 1149 1150 if (ttrace) 1151 ttrace->paths.max = -1; 1152 1153 ttrace->syscall_stats = intlist__new(NULL); 1154 1155 return ttrace; 1156 } 1157 1158 static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) 1159 { 1160 struct thread_trace *ttrace; 1161 1162 if (thread == NULL) 1163 goto fail; 1164 1165 if (thread->priv == NULL) 1166 thread->priv = thread_trace__new(); 1167 1168 if (thread->priv == NULL) 1169 goto fail; 1170 1171 ttrace = thread->priv; 1172 ++ttrace->nr_events; 1173 1174 return ttrace; 1175 fail: 1176 color_fprintf(fp, PERF_COLOR_RED, 1177 "WARNING: not enough memory, dropping samples!\n"); 1178 return NULL; 1179 } 1180 1181 #define TRACE_PFMAJ (1 << 0) 1182 #define TRACE_PFMIN (1 << 1) 1183 1184 struct trace { 1185 struct perf_tool tool; 1186 struct { 1187 int machine; 1188 int open_id; 1189 } audit; 1190 struct { 1191 int max; 1192 struct syscall *table; 1193 } syscalls; 1194 struct record_opts opts; 1195 struct machine *host; 1196 u64 base_time; 1197 FILE *output; 1198 unsigned long nr_events; 1199 struct strlist *ev_qualifier; 1200 const char *last_vfs_getname; 1201 struct intlist *tid_list; 1202 struct intlist *pid_list; 1203 double duration_filter; 1204 double runtime_ms; 1205 struct { 1206 u64 vfs_getname, 1207 proc_getname; 1208 } stats; 1209 bool not_ev_qualifier; 1210 bool live; 1211 bool full_time; 1212 bool sched; 1213 bool multiple_threads; 1214 bool summary; 1215 bool summary_only; 1216 bool show_comm; 1217 bool show_tool_stats; 1218 int trace_pgfaults; 1219 }; 1220 1221 static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) 1222 { 1223 struct thread_trace *ttrace = thread->priv; 1224 1225 if (fd > ttrace->paths.max) { 1226 char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *)); 1227 1228 if (npath == NULL) 1229 return -1; 1230 1231 if (ttrace->paths.max != -1) { 1232 memset(npath + ttrace->paths.max + 1, 0, 1233 (fd - ttrace->paths.max) * sizeof(char *)); 1234 } else { 1235 memset(npath, 0, (fd + 1) * sizeof(char *)); 1236 } 1237 1238 ttrace->paths.table = npath; 1239 ttrace->paths.max = fd; 1240 } 1241 1242 ttrace->paths.table[fd] = strdup(pathname); 1243 1244 return ttrace->paths.table[fd] != NULL ? 0 : -1; 1245 } 1246 1247 static int thread__read_fd_path(struct thread *thread, int fd) 1248 { 1249 char linkname[PATH_MAX], pathname[PATH_MAX]; 1250 struct stat st; 1251 int ret; 1252 1253 if (thread->pid_ == thread->tid) { 1254 scnprintf(linkname, sizeof(linkname), 1255 "/proc/%d/fd/%d", thread->pid_, fd); 1256 } else { 1257 scnprintf(linkname, sizeof(linkname), 1258 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); 1259 } 1260 1261 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) 1262 return -1; 1263 1264 ret = readlink(linkname, pathname, sizeof(pathname)); 1265 1266 if (ret < 0 || ret > st.st_size) 1267 return -1; 1268 1269 pathname[ret] = '\0'; 1270 return trace__set_fd_pathname(thread, fd, pathname); 1271 } 1272 1273 static const char *thread__fd_path(struct thread *thread, int fd, 1274 struct trace *trace) 1275 { 1276 struct thread_trace *ttrace = thread->priv; 1277 1278 if (ttrace == NULL) 1279 return NULL; 1280 1281 if (fd < 0) 1282 return NULL; 1283 1284 if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) { 1285 if (!trace->live) 1286 return NULL; 1287 ++trace->stats.proc_getname; 1288 if (thread__read_fd_path(thread, fd)) 1289 return NULL; 1290 } 1291 1292 return ttrace->paths.table[fd]; 1293 } 1294 1295 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, 1296 struct syscall_arg *arg) 1297 { 1298 int fd = arg->val; 1299 size_t printed = scnprintf(bf, size, "%d", fd); 1300 const char *path = thread__fd_path(arg->thread, fd, arg->trace); 1301 1302 if (path) 1303 printed += scnprintf(bf + printed, size - printed, "<%s>", path); 1304 1305 return printed; 1306 } 1307 1308 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, 1309 struct syscall_arg *arg) 1310 { 1311 int fd = arg->val; 1312 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); 1313 struct thread_trace *ttrace = arg->thread->priv; 1314 1315 if (ttrace && fd >= 0 && fd <= ttrace->paths.max) 1316 zfree(&ttrace->paths.table[fd]); 1317 1318 return printed; 1319 } 1320 1321 static bool trace__filter_duration(struct trace *trace, double t) 1322 { 1323 return t < (trace->duration_filter * NSEC_PER_MSEC); 1324 } 1325 1326 static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) 1327 { 1328 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; 1329 1330 return fprintf(fp, "%10.3f ", ts); 1331 } 1332 1333 static bool done = false; 1334 static bool interrupted = false; 1335 1336 static void sig_handler(int sig) 1337 { 1338 done = true; 1339 interrupted = sig == SIGINT; 1340 } 1341 1342 static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, 1343 u64 duration, u64 tstamp, FILE *fp) 1344 { 1345 size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); 1346 printed += fprintf_duration(duration, fp); 1347 1348 if (trace->multiple_threads) { 1349 if (trace->show_comm) 1350 printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); 1351 printed += fprintf(fp, "%d ", thread->tid); 1352 } 1353 1354 return printed; 1355 } 1356 1357 static int trace__process_event(struct trace *trace, struct machine *machine, 1358 union perf_event *event, struct perf_sample *sample) 1359 { 1360 int ret = 0; 1361 1362 switch (event->header.type) { 1363 case PERF_RECORD_LOST: 1364 color_fprintf(trace->output, PERF_COLOR_RED, 1365 "LOST %" PRIu64 " events!\n", event->lost.lost); 1366 ret = machine__process_lost_event(machine, event, sample); 1367 default: 1368 ret = machine__process_event(machine, event, sample); 1369 break; 1370 } 1371 1372 return ret; 1373 } 1374 1375 static int trace__tool_process(struct perf_tool *tool, 1376 union perf_event *event, 1377 struct perf_sample *sample, 1378 struct machine *machine) 1379 { 1380 struct trace *trace = container_of(tool, struct trace, tool); 1381 return trace__process_event(trace, machine, event, sample); 1382 } 1383 1384 static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) 1385 { 1386 int err = symbol__init(); 1387 1388 if (err) 1389 return err; 1390 1391 trace->host = machine__new_host(); 1392 if (trace->host == NULL) 1393 return -ENOMEM; 1394 1395 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, 1396 evlist->threads, trace__tool_process, false); 1397 if (err) 1398 symbol__exit(); 1399 1400 return err; 1401 } 1402 1403 static int syscall__set_arg_fmts(struct syscall *sc) 1404 { 1405 struct format_field *field; 1406 int idx = 0; 1407 1408 sc->arg_scnprintf = calloc(sc->tp_format->format.nr_fields - 1, sizeof(void *)); 1409 if (sc->arg_scnprintf == NULL) 1410 return -1; 1411 1412 if (sc->fmt) 1413 sc->arg_parm = sc->fmt->arg_parm; 1414 1415 for (field = sc->tp_format->format.fields->next; field; field = field->next) { 1416 if (sc->fmt && sc->fmt->arg_scnprintf[idx]) 1417 sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx]; 1418 else if (field->flags & FIELD_IS_POINTER) 1419 sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex; 1420 ++idx; 1421 } 1422 1423 return 0; 1424 } 1425 1426 static int trace__read_syscall_info(struct trace *trace, int id) 1427 { 1428 char tp_name[128]; 1429 struct syscall *sc; 1430 const char *name = audit_syscall_to_name(id, trace->audit.machine); 1431 1432 if (name == NULL) 1433 return -1; 1434 1435 if (id > trace->syscalls.max) { 1436 struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); 1437 1438 if (nsyscalls == NULL) 1439 return -1; 1440 1441 if (trace->syscalls.max != -1) { 1442 memset(nsyscalls + trace->syscalls.max + 1, 0, 1443 (id - trace->syscalls.max) * sizeof(*sc)); 1444 } else { 1445 memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); 1446 } 1447 1448 trace->syscalls.table = nsyscalls; 1449 trace->syscalls.max = id; 1450 } 1451 1452 sc = trace->syscalls.table + id; 1453 sc->name = name; 1454 1455 if (trace->ev_qualifier) { 1456 bool in = strlist__find(trace->ev_qualifier, name) != NULL; 1457 1458 if (!(in ^ trace->not_ev_qualifier)) { 1459 sc->filtered = true; 1460 /* 1461 * No need to do read tracepoint information since this will be 1462 * filtered out. 1463 */ 1464 return 0; 1465 } 1466 } 1467 1468 sc->fmt = syscall_fmt__find(sc->name); 1469 1470 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); 1471 sc->tp_format = trace_event__tp_format("syscalls", tp_name); 1472 1473 if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { 1474 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); 1475 sc->tp_format = trace_event__tp_format("syscalls", tp_name); 1476 } 1477 1478 if (sc->tp_format == NULL) 1479 return -1; 1480 1481 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); 1482 1483 return syscall__set_arg_fmts(sc); 1484 } 1485 1486 static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, 1487 unsigned long *args, struct trace *trace, 1488 struct thread *thread) 1489 { 1490 size_t printed = 0; 1491 1492 if (sc->tp_format != NULL) { 1493 struct format_field *field; 1494 u8 bit = 1; 1495 struct syscall_arg arg = { 1496 .idx = 0, 1497 .mask = 0, 1498 .trace = trace, 1499 .thread = thread, 1500 }; 1501 1502 for (field = sc->tp_format->format.fields->next; field; 1503 field = field->next, ++arg.idx, bit <<= 1) { 1504 if (arg.mask & bit) 1505 continue; 1506 /* 1507 * Suppress this argument if its value is zero and 1508 * and we don't have a string associated in an 1509 * strarray for it. 1510 */ 1511 if (args[arg.idx] == 0 && 1512 !(sc->arg_scnprintf && 1513 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY && 1514 sc->arg_parm[arg.idx])) 1515 continue; 1516 1517 printed += scnprintf(bf + printed, size - printed, 1518 "%s%s: ", printed ? ", " : "", field->name); 1519 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) { 1520 arg.val = args[arg.idx]; 1521 if (sc->arg_parm) 1522 arg.parm = sc->arg_parm[arg.idx]; 1523 printed += sc->arg_scnprintf[arg.idx](bf + printed, 1524 size - printed, &arg); 1525 } else { 1526 printed += scnprintf(bf + printed, size - printed, 1527 "%ld", args[arg.idx]); 1528 } 1529 } 1530 } else { 1531 int i = 0; 1532 1533 while (i < 6) { 1534 printed += scnprintf(bf + printed, size - printed, 1535 "%sarg%d: %ld", 1536 printed ? ", " : "", i, args[i]); 1537 ++i; 1538 } 1539 } 1540 1541 return printed; 1542 } 1543 1544 typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, 1545 union perf_event *event, 1546 struct perf_sample *sample); 1547 1548 static struct syscall *trace__syscall_info(struct trace *trace, 1549 struct perf_evsel *evsel, int id) 1550 { 1551 1552 if (id < 0) { 1553 1554 /* 1555 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried 1556 * before that, leaving at a higher verbosity level till that is 1557 * explained. Reproduced with plain ftrace with: 1558 * 1559 * echo 1 > /t/events/raw_syscalls/sys_exit/enable 1560 * grep "NR -1 " /t/trace_pipe 1561 * 1562 * After generating some load on the machine. 1563 */ 1564 if (verbose > 1) { 1565 static u64 n; 1566 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", 1567 id, perf_evsel__name(evsel), ++n); 1568 } 1569 return NULL; 1570 } 1571 1572 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && 1573 trace__read_syscall_info(trace, id)) 1574 goto out_cant_read; 1575 1576 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) 1577 goto out_cant_read; 1578 1579 return &trace->syscalls.table[id]; 1580 1581 out_cant_read: 1582 if (verbose) { 1583 fprintf(trace->output, "Problems reading syscall %d", id); 1584 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) 1585 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); 1586 fputs(" information\n", trace->output); 1587 } 1588 return NULL; 1589 } 1590 1591 static void thread__update_stats(struct thread_trace *ttrace, 1592 int id, struct perf_sample *sample) 1593 { 1594 struct int_node *inode; 1595 struct stats *stats; 1596 u64 duration = 0; 1597 1598 inode = intlist__findnew(ttrace->syscall_stats, id); 1599 if (inode == NULL) 1600 return; 1601 1602 stats = inode->priv; 1603 if (stats == NULL) { 1604 stats = malloc(sizeof(struct stats)); 1605 if (stats == NULL) 1606 return; 1607 init_stats(stats); 1608 inode->priv = stats; 1609 } 1610 1611 if (ttrace->entry_time && sample->time > ttrace->entry_time) 1612 duration = sample->time - ttrace->entry_time; 1613 1614 update_stats(stats, duration); 1615 } 1616 1617 static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, 1618 union perf_event *event __maybe_unused, 1619 struct perf_sample *sample) 1620 { 1621 char *msg; 1622 void *args; 1623 size_t printed = 0; 1624 struct thread *thread; 1625 int id = perf_evsel__sc_tp_uint(evsel, id, sample); 1626 struct syscall *sc = trace__syscall_info(trace, evsel, id); 1627 struct thread_trace *ttrace; 1628 1629 if (sc == NULL) 1630 return -1; 1631 1632 if (sc->filtered) 1633 return 0; 1634 1635 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); 1636 ttrace = thread__trace(thread, trace->output); 1637 if (ttrace == NULL) 1638 return -1; 1639 1640 args = perf_evsel__sc_tp_ptr(evsel, args, sample); 1641 1642 if (ttrace->entry_str == NULL) { 1643 ttrace->entry_str = malloc(1024); 1644 if (!ttrace->entry_str) 1645 return -1; 1646 } 1647 1648 ttrace->entry_time = sample->time; 1649 msg = ttrace->entry_str; 1650 printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name); 1651 1652 printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, 1653 args, trace, thread); 1654 1655 if (sc->is_exit) { 1656 if (!trace->duration_filter && !trace->summary_only) { 1657 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output); 1658 fprintf(trace->output, "%-70s\n", ttrace->entry_str); 1659 } 1660 } else 1661 ttrace->entry_pending = true; 1662 1663 return 0; 1664 } 1665 1666 static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, 1667 union perf_event *event __maybe_unused, 1668 struct perf_sample *sample) 1669 { 1670 int ret; 1671 u64 duration = 0; 1672 struct thread *thread; 1673 int id = perf_evsel__sc_tp_uint(evsel, id, sample); 1674 struct syscall *sc = trace__syscall_info(trace, evsel, id); 1675 struct thread_trace *ttrace; 1676 1677 if (sc == NULL) 1678 return -1; 1679 1680 if (sc->filtered) 1681 return 0; 1682 1683 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); 1684 ttrace = thread__trace(thread, trace->output); 1685 if (ttrace == NULL) 1686 return -1; 1687 1688 if (trace->summary) 1689 thread__update_stats(ttrace, id, sample); 1690 1691 ret = perf_evsel__sc_tp_uint(evsel, ret, sample); 1692 1693 if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) { 1694 trace__set_fd_pathname(thread, ret, trace->last_vfs_getname); 1695 trace->last_vfs_getname = NULL; 1696 ++trace->stats.vfs_getname; 1697 } 1698 1699 ttrace->exit_time = sample->time; 1700 1701 if (ttrace->entry_time) { 1702 duration = sample->time - ttrace->entry_time; 1703 if (trace__filter_duration(trace, duration)) 1704 goto out; 1705 } else if (trace->duration_filter) 1706 goto out; 1707 1708 if (trace->summary_only) 1709 goto out; 1710 1711 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output); 1712 1713 if (ttrace->entry_pending) { 1714 fprintf(trace->output, "%-70s", ttrace->entry_str); 1715 } else { 1716 fprintf(trace->output, " ... ["); 1717 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); 1718 fprintf(trace->output, "]: %s()", sc->name); 1719 } 1720 1721 if (sc->fmt == NULL) { 1722 signed_print: 1723 fprintf(trace->output, ") = %d", ret); 1724 } else if (ret < 0 && sc->fmt->errmsg) { 1725 char bf[256]; 1726 const char *emsg = strerror_r(-ret, bf, sizeof(bf)), 1727 *e = audit_errno_to_name(-ret); 1728 1729 fprintf(trace->output, ") = -1 %s %s", e, emsg); 1730 } else if (ret == 0 && sc->fmt->timeout) 1731 fprintf(trace->output, ") = 0 Timeout"); 1732 else if (sc->fmt->hexret) 1733 fprintf(trace->output, ") = %#x", ret); 1734 else 1735 goto signed_print; 1736 1737 fputc('\n', trace->output); 1738 out: 1739 ttrace->entry_pending = false; 1740 1741 return 0; 1742 } 1743 1744 static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, 1745 union perf_event *event __maybe_unused, 1746 struct perf_sample *sample) 1747 { 1748 trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname"); 1749 return 0; 1750 } 1751 1752 static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, 1753 union perf_event *event __maybe_unused, 1754 struct perf_sample *sample) 1755 { 1756 u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); 1757 double runtime_ms = (double)runtime / NSEC_PER_MSEC; 1758 struct thread *thread = machine__findnew_thread(trace->host, 1759 sample->pid, 1760 sample->tid); 1761 struct thread_trace *ttrace = thread__trace(thread, trace->output); 1762 1763 if (ttrace == NULL) 1764 goto out_dump; 1765 1766 ttrace->runtime_ms += runtime_ms; 1767 trace->runtime_ms += runtime_ms; 1768 return 0; 1769 1770 out_dump: 1771 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", 1772 evsel->name, 1773 perf_evsel__strval(evsel, sample, "comm"), 1774 (pid_t)perf_evsel__intval(evsel, sample, "pid"), 1775 runtime, 1776 perf_evsel__intval(evsel, sample, "vruntime")); 1777 return 0; 1778 } 1779 1780 static void print_location(FILE *f, struct perf_sample *sample, 1781 struct addr_location *al, 1782 bool print_dso, bool print_sym) 1783 { 1784 1785 if ((verbose || print_dso) && al->map) 1786 fprintf(f, "%s@", al->map->dso->long_name); 1787 1788 if ((verbose || print_sym) && al->sym) 1789 fprintf(f, "%s+0x%lx", al->sym->name, 1790 al->addr - al->sym->start); 1791 else if (al->map) 1792 fprintf(f, "0x%lx", al->addr); 1793 else 1794 fprintf(f, "0x%lx", sample->addr); 1795 } 1796 1797 static int trace__pgfault(struct trace *trace, 1798 struct perf_evsel *evsel, 1799 union perf_event *event, 1800 struct perf_sample *sample) 1801 { 1802 struct thread *thread; 1803 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 1804 struct addr_location al; 1805 char map_type = 'd'; 1806 1807 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); 1808 1809 thread__find_addr_location(thread, trace->host, cpumode, MAP__FUNCTION, 1810 sample->ip, &al); 1811 1812 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output); 1813 1814 fprintf(trace->output, "%sfault [", 1815 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? 1816 "maj" : "min"); 1817 1818 print_location(trace->output, sample, &al, false, true); 1819 1820 fprintf(trace->output, "] => "); 1821 1822 thread__find_addr_location(thread, trace->host, cpumode, MAP__VARIABLE, 1823 sample->addr, &al); 1824 1825 if (!al.map) { 1826 thread__find_addr_location(thread, trace->host, cpumode, 1827 MAP__FUNCTION, sample->addr, &al); 1828 1829 if (al.map) 1830 map_type = 'x'; 1831 else 1832 map_type = '?'; 1833 } 1834 1835 print_location(trace->output, sample, &al, true, false); 1836 1837 fprintf(trace->output, " (%c%c)\n", map_type, al.level); 1838 1839 return 0; 1840 } 1841 1842 static bool skip_sample(struct trace *trace, struct perf_sample *sample) 1843 { 1844 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) || 1845 (trace->tid_list && intlist__find(trace->tid_list, sample->tid))) 1846 return false; 1847 1848 if (trace->pid_list || trace->tid_list) 1849 return true; 1850 1851 return false; 1852 } 1853 1854 static int trace__process_sample(struct perf_tool *tool, 1855 union perf_event *event, 1856 struct perf_sample *sample, 1857 struct perf_evsel *evsel, 1858 struct machine *machine __maybe_unused) 1859 { 1860 struct trace *trace = container_of(tool, struct trace, tool); 1861 int err = 0; 1862 1863 tracepoint_handler handler = evsel->handler; 1864 1865 if (skip_sample(trace, sample)) 1866 return 0; 1867 1868 if (!trace->full_time && trace->base_time == 0) 1869 trace->base_time = sample->time; 1870 1871 if (handler) { 1872 ++trace->nr_events; 1873 handler(trace, evsel, event, sample); 1874 } 1875 1876 return err; 1877 } 1878 1879 static int parse_target_str(struct trace *trace) 1880 { 1881 if (trace->opts.target.pid) { 1882 trace->pid_list = intlist__new(trace->opts.target.pid); 1883 if (trace->pid_list == NULL) { 1884 pr_err("Error parsing process id string\n"); 1885 return -EINVAL; 1886 } 1887 } 1888 1889 if (trace->opts.target.tid) { 1890 trace->tid_list = intlist__new(trace->opts.target.tid); 1891 if (trace->tid_list == NULL) { 1892 pr_err("Error parsing thread id string\n"); 1893 return -EINVAL; 1894 } 1895 } 1896 1897 return 0; 1898 } 1899 1900 static int trace__record(int argc, const char **argv) 1901 { 1902 unsigned int rec_argc, i, j; 1903 const char **rec_argv; 1904 const char * const record_args[] = { 1905 "record", 1906 "-R", 1907 "-m", "1024", 1908 "-c", "1", 1909 "-e", 1910 }; 1911 1912 /* +1 is for the event string below */ 1913 rec_argc = ARRAY_SIZE(record_args) + 1 + argc; 1914 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 1915 1916 if (rec_argv == NULL) 1917 return -ENOMEM; 1918 1919 for (i = 0; i < ARRAY_SIZE(record_args); i++) 1920 rec_argv[i] = record_args[i]; 1921 1922 /* event string may be different for older kernels - e.g., RHEL6 */ 1923 if (is_valid_tracepoint("raw_syscalls:sys_enter")) 1924 rec_argv[i] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; 1925 else if (is_valid_tracepoint("syscalls:sys_enter")) 1926 rec_argv[i] = "syscalls:sys_enter,syscalls:sys_exit"; 1927 else { 1928 pr_err("Neither raw_syscalls nor syscalls events exist.\n"); 1929 return -1; 1930 } 1931 i++; 1932 1933 for (j = 0; j < (unsigned int)argc; j++, i++) 1934 rec_argv[i] = argv[j]; 1935 1936 return cmd_record(i, rec_argv, NULL); 1937 } 1938 1939 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); 1940 1941 static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist) 1942 { 1943 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); 1944 if (evsel == NULL) 1945 return; 1946 1947 if (perf_evsel__field(evsel, "pathname") == NULL) { 1948 perf_evsel__delete(evsel); 1949 return; 1950 } 1951 1952 evsel->handler = trace__vfs_getname; 1953 perf_evlist__add(evlist, evsel); 1954 } 1955 1956 static int perf_evlist__add_pgfault(struct perf_evlist *evlist, 1957 u64 config) 1958 { 1959 struct perf_evsel *evsel; 1960 struct perf_event_attr attr = { 1961 .type = PERF_TYPE_SOFTWARE, 1962 .mmap_data = 1, 1963 .sample_period = 1, 1964 }; 1965 1966 attr.config = config; 1967 1968 event_attr_init(&attr); 1969 1970 evsel = perf_evsel__new(&attr); 1971 if (!evsel) 1972 return -ENOMEM; 1973 1974 evsel->handler = trace__pgfault; 1975 perf_evlist__add(evlist, evsel); 1976 1977 return 0; 1978 } 1979 1980 static int trace__run(struct trace *trace, int argc, const char **argv) 1981 { 1982 struct perf_evlist *evlist = perf_evlist__new(); 1983 struct perf_evsel *evsel; 1984 int err = -1, i; 1985 unsigned long before; 1986 const bool forks = argc > 0; 1987 1988 trace->live = true; 1989 1990 if (evlist == NULL) { 1991 fprintf(trace->output, "Not enough memory to run!\n"); 1992 goto out; 1993 } 1994 1995 if (perf_evlist__add_syscall_newtp(evlist, trace__sys_enter, trace__sys_exit)) 1996 goto out_error_tp; 1997 1998 perf_evlist__add_vfs_getname(evlist); 1999 2000 if ((trace->trace_pgfaults & TRACE_PFMAJ) && 2001 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) 2002 goto out_error_tp; 2003 2004 if ((trace->trace_pgfaults & TRACE_PFMIN) && 2005 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN)) 2006 goto out_error_tp; 2007 2008 if (trace->sched && 2009 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", 2010 trace__sched_stat_runtime)) 2011 goto out_error_tp; 2012 2013 err = perf_evlist__create_maps(evlist, &trace->opts.target); 2014 if (err < 0) { 2015 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); 2016 goto out_delete_evlist; 2017 } 2018 2019 err = trace__symbols_init(trace, evlist); 2020 if (err < 0) { 2021 fprintf(trace->output, "Problems initializing symbol libraries!\n"); 2022 goto out_delete_evlist; 2023 } 2024 2025 perf_evlist__config(evlist, &trace->opts); 2026 2027 signal(SIGCHLD, sig_handler); 2028 signal(SIGINT, sig_handler); 2029 2030 if (forks) { 2031 err = perf_evlist__prepare_workload(evlist, &trace->opts.target, 2032 argv, false, NULL); 2033 if (err < 0) { 2034 fprintf(trace->output, "Couldn't run the workload!\n"); 2035 goto out_delete_evlist; 2036 } 2037 } 2038 2039 err = perf_evlist__open(evlist); 2040 if (err < 0) 2041 goto out_error_open; 2042 2043 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false); 2044 if (err < 0) { 2045 fprintf(trace->output, "Couldn't mmap the events: %s\n", strerror(errno)); 2046 goto out_delete_evlist; 2047 } 2048 2049 perf_evlist__enable(evlist); 2050 2051 if (forks) 2052 perf_evlist__start_workload(evlist); 2053 2054 trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1; 2055 again: 2056 before = trace->nr_events; 2057 2058 for (i = 0; i < evlist->nr_mmaps; i++) { 2059 union perf_event *event; 2060 2061 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { 2062 const u32 type = event->header.type; 2063 tracepoint_handler handler; 2064 struct perf_sample sample; 2065 2066 ++trace->nr_events; 2067 2068 err = perf_evlist__parse_sample(evlist, event, &sample); 2069 if (err) { 2070 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); 2071 goto next_event; 2072 } 2073 2074 if (!trace->full_time && trace->base_time == 0) 2075 trace->base_time = sample.time; 2076 2077 if (type != PERF_RECORD_SAMPLE) { 2078 trace__process_event(trace, trace->host, event, &sample); 2079 continue; 2080 } 2081 2082 evsel = perf_evlist__id2evsel(evlist, sample.id); 2083 if (evsel == NULL) { 2084 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample.id); 2085 goto next_event; 2086 } 2087 2088 if (evsel->attr.type == PERF_TYPE_TRACEPOINT && 2089 sample.raw_data == NULL) { 2090 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", 2091 perf_evsel__name(evsel), sample.tid, 2092 sample.cpu, sample.raw_size); 2093 goto next_event; 2094 } 2095 2096 handler = evsel->handler; 2097 handler(trace, evsel, event, &sample); 2098 next_event: 2099 perf_evlist__mmap_consume(evlist, i); 2100 2101 if (interrupted) 2102 goto out_disable; 2103 } 2104 } 2105 2106 if (trace->nr_events == before) { 2107 int timeout = done ? 100 : -1; 2108 2109 if (poll(evlist->pollfd, evlist->nr_fds, timeout) > 0) 2110 goto again; 2111 } else { 2112 goto again; 2113 } 2114 2115 out_disable: 2116 perf_evlist__disable(evlist); 2117 2118 if (!err) { 2119 if (trace->summary) 2120 trace__fprintf_thread_summary(trace, trace->output); 2121 2122 if (trace->show_tool_stats) { 2123 fprintf(trace->output, "Stats:\n " 2124 " vfs_getname : %" PRIu64 "\n" 2125 " proc_getname: %" PRIu64 "\n", 2126 trace->stats.vfs_getname, 2127 trace->stats.proc_getname); 2128 } 2129 } 2130 2131 out_delete_evlist: 2132 perf_evlist__delete(evlist); 2133 out: 2134 trace->live = false; 2135 return err; 2136 { 2137 char errbuf[BUFSIZ]; 2138 2139 out_error_tp: 2140 perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf)); 2141 goto out_error; 2142 2143 out_error_open: 2144 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); 2145 2146 out_error: 2147 fprintf(trace->output, "%s\n", errbuf); 2148 goto out_delete_evlist; 2149 } 2150 } 2151 2152 static int trace__replay(struct trace *trace) 2153 { 2154 const struct perf_evsel_str_handler handlers[] = { 2155 { "probe:vfs_getname", trace__vfs_getname, }, 2156 }; 2157 struct perf_data_file file = { 2158 .path = input_name, 2159 .mode = PERF_DATA_MODE_READ, 2160 }; 2161 struct perf_session *session; 2162 struct perf_evsel *evsel; 2163 int err = -1; 2164 2165 trace->tool.sample = trace__process_sample; 2166 trace->tool.mmap = perf_event__process_mmap; 2167 trace->tool.mmap2 = perf_event__process_mmap2; 2168 trace->tool.comm = perf_event__process_comm; 2169 trace->tool.exit = perf_event__process_exit; 2170 trace->tool.fork = perf_event__process_fork; 2171 trace->tool.attr = perf_event__process_attr; 2172 trace->tool.tracing_data = perf_event__process_tracing_data; 2173 trace->tool.build_id = perf_event__process_build_id; 2174 2175 trace->tool.ordered_samples = true; 2176 trace->tool.ordering_requires_timestamps = true; 2177 2178 /* add tid to output */ 2179 trace->multiple_threads = true; 2180 2181 if (symbol__init() < 0) 2182 return -1; 2183 2184 session = perf_session__new(&file, false, &trace->tool); 2185 if (session == NULL) 2186 return -ENOMEM; 2187 2188 trace->host = &session->machines.host; 2189 2190 err = perf_session__set_tracepoints_handlers(session, handlers); 2191 if (err) 2192 goto out; 2193 2194 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, 2195 "raw_syscalls:sys_enter"); 2196 /* older kernels have syscalls tp versus raw_syscalls */ 2197 if (evsel == NULL) 2198 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, 2199 "syscalls:sys_enter"); 2200 if (evsel == NULL) { 2201 pr_err("Data file does not have raw_syscalls:sys_enter event\n"); 2202 goto out; 2203 } 2204 2205 if (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 || 2206 perf_evsel__init_sc_tp_ptr_field(evsel, args)) { 2207 pr_err("Error during initialize raw_syscalls:sys_enter event\n"); 2208 goto out; 2209 } 2210 2211 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, 2212 "raw_syscalls:sys_exit"); 2213 if (evsel == NULL) 2214 evsel = perf_evlist__find_tracepoint_by_name(session->evlist, 2215 "syscalls:sys_exit"); 2216 if (evsel == NULL) { 2217 pr_err("Data file does not have raw_syscalls:sys_exit event\n"); 2218 goto out; 2219 } 2220 2221 if (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 || 2222 perf_evsel__init_sc_tp_uint_field(evsel, ret)) { 2223 pr_err("Error during initialize raw_syscalls:sys_exit event\n"); 2224 goto out; 2225 } 2226 2227 err = parse_target_str(trace); 2228 if (err != 0) 2229 goto out; 2230 2231 setup_pager(); 2232 2233 err = perf_session__process_events(session, &trace->tool); 2234 if (err) 2235 pr_err("Failed to process events, error %d", err); 2236 2237 else if (trace->summary) 2238 trace__fprintf_thread_summary(trace, trace->output); 2239 2240 out: 2241 perf_session__delete(session); 2242 2243 return err; 2244 } 2245 2246 static size_t trace__fprintf_threads_header(FILE *fp) 2247 { 2248 size_t printed; 2249 2250 printed = fprintf(fp, "\n Summary of events:\n\n"); 2251 2252 return printed; 2253 } 2254 2255 static size_t thread__dump_stats(struct thread_trace *ttrace, 2256 struct trace *trace, FILE *fp) 2257 { 2258 struct stats *stats; 2259 size_t printed = 0; 2260 struct syscall *sc; 2261 struct int_node *inode = intlist__first(ttrace->syscall_stats); 2262 2263 if (inode == NULL) 2264 return 0; 2265 2266 printed += fprintf(fp, "\n"); 2267 2268 printed += fprintf(fp, " syscall calls min avg max stddev\n"); 2269 printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n"); 2270 printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n"); 2271 2272 /* each int_node is a syscall */ 2273 while (inode) { 2274 stats = inode->priv; 2275 if (stats) { 2276 double min = (double)(stats->min) / NSEC_PER_MSEC; 2277 double max = (double)(stats->max) / NSEC_PER_MSEC; 2278 double avg = avg_stats(stats); 2279 double pct; 2280 u64 n = (u64) stats->n; 2281 2282 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; 2283 avg /= NSEC_PER_MSEC; 2284 2285 sc = &trace->syscalls.table[inode->i]; 2286 printed += fprintf(fp, " %-15s", sc->name); 2287 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f", 2288 n, min, avg); 2289 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); 2290 } 2291 2292 inode = intlist__next(inode); 2293 } 2294 2295 printed += fprintf(fp, "\n\n"); 2296 2297 return printed; 2298 } 2299 2300 /* struct used to pass data to per-thread function */ 2301 struct summary_data { 2302 FILE *fp; 2303 struct trace *trace; 2304 size_t printed; 2305 }; 2306 2307 static int trace__fprintf_one_thread(struct thread *thread, void *priv) 2308 { 2309 struct summary_data *data = priv; 2310 FILE *fp = data->fp; 2311 size_t printed = data->printed; 2312 struct trace *trace = data->trace; 2313 struct thread_trace *ttrace = thread->priv; 2314 double ratio; 2315 2316 if (ttrace == NULL) 2317 return 0; 2318 2319 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; 2320 2321 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); 2322 printed += fprintf(fp, "%lu events, ", ttrace->nr_events); 2323 printed += fprintf(fp, "%.1f%%", ratio); 2324 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); 2325 printed += thread__dump_stats(ttrace, trace, fp); 2326 2327 data->printed += printed; 2328 2329 return 0; 2330 } 2331 2332 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) 2333 { 2334 struct summary_data data = { 2335 .fp = fp, 2336 .trace = trace 2337 }; 2338 data.printed = trace__fprintf_threads_header(fp); 2339 2340 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data); 2341 2342 return data.printed; 2343 } 2344 2345 static int trace__set_duration(const struct option *opt, const char *str, 2346 int unset __maybe_unused) 2347 { 2348 struct trace *trace = opt->value; 2349 2350 trace->duration_filter = atof(str); 2351 return 0; 2352 } 2353 2354 static int trace__open_output(struct trace *trace, const char *filename) 2355 { 2356 struct stat st; 2357 2358 if (!stat(filename, &st) && st.st_size) { 2359 char oldname[PATH_MAX]; 2360 2361 scnprintf(oldname, sizeof(oldname), "%s.old", filename); 2362 unlink(oldname); 2363 rename(filename, oldname); 2364 } 2365 2366 trace->output = fopen(filename, "w"); 2367 2368 return trace->output == NULL ? -errno : 0; 2369 } 2370 2371 static int parse_pagefaults(const struct option *opt, const char *str, 2372 int unset __maybe_unused) 2373 { 2374 int *trace_pgfaults = opt->value; 2375 2376 if (strcmp(str, "all") == 0) 2377 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; 2378 else if (strcmp(str, "maj") == 0) 2379 *trace_pgfaults |= TRACE_PFMAJ; 2380 else if (strcmp(str, "min") == 0) 2381 *trace_pgfaults |= TRACE_PFMIN; 2382 else 2383 return -1; 2384 2385 return 0; 2386 } 2387 2388 int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) 2389 { 2390 const char * const trace_usage[] = { 2391 "perf trace [<options>] [<command>]", 2392 "perf trace [<options>] -- <command> [<options>]", 2393 "perf trace record [<options>] [<command>]", 2394 "perf trace record [<options>] -- <command> [<options>]", 2395 NULL 2396 }; 2397 struct trace trace = { 2398 .audit = { 2399 .machine = audit_detect_machine(), 2400 .open_id = audit_name_to_syscall("open", trace.audit.machine), 2401 }, 2402 .syscalls = { 2403 . max = -1, 2404 }, 2405 .opts = { 2406 .target = { 2407 .uid = UINT_MAX, 2408 .uses_mmap = true, 2409 }, 2410 .user_freq = UINT_MAX, 2411 .user_interval = ULLONG_MAX, 2412 .no_buffering = true, 2413 .mmap_pages = 1024, 2414 }, 2415 .output = stdout, 2416 .show_comm = true, 2417 }; 2418 const char *output_name = NULL; 2419 const char *ev_qualifier_str = NULL; 2420 const struct option trace_options[] = { 2421 OPT_BOOLEAN(0, "comm", &trace.show_comm, 2422 "show the thread COMM next to its id"), 2423 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), 2424 OPT_STRING('e', "expr", &ev_qualifier_str, "expr", 2425 "list of events to trace"), 2426 OPT_STRING('o', "output", &output_name, "file", "output file name"), 2427 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), 2428 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", 2429 "trace events on existing process id"), 2430 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", 2431 "trace events on existing thread id"), 2432 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, 2433 "system-wide collection from all CPUs"), 2434 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", 2435 "list of cpus to monitor"), 2436 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, 2437 "child tasks do not inherit counters"), 2438 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", 2439 "number of mmap data pages", 2440 perf_evlist__parse_mmap_pages), 2441 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", 2442 "user to profile"), 2443 OPT_CALLBACK(0, "duration", &trace, "float", 2444 "show only events with duration > N.M ms", 2445 trace__set_duration), 2446 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), 2447 OPT_INCR('v', "verbose", &verbose, "be more verbose"), 2448 OPT_BOOLEAN('T', "time", &trace.full_time, 2449 "Show full timestamp, not time relative to first start"), 2450 OPT_BOOLEAN('s', "summary", &trace.summary_only, 2451 "Show only syscall summary with statistics"), 2452 OPT_BOOLEAN('S', "with-summary", &trace.summary, 2453 "Show all syscalls and summary with statistics"), 2454 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", 2455 "Trace pagefaults", parse_pagefaults, "maj"), 2456 OPT_END() 2457 }; 2458 int err; 2459 char bf[BUFSIZ]; 2460 2461 if ((argc > 1) && (strcmp(argv[1], "record") == 0)) 2462 return trace__record(argc-2, &argv[2]); 2463 2464 argc = parse_options(argc, argv, trace_options, trace_usage, 0); 2465 2466 /* summary_only implies summary option, but don't overwrite summary if set */ 2467 if (trace.summary_only) 2468 trace.summary = trace.summary_only; 2469 2470 if (trace.trace_pgfaults) { 2471 trace.opts.sample_address = true; 2472 trace.opts.sample_time = true; 2473 } 2474 2475 if (output_name != NULL) { 2476 err = trace__open_output(&trace, output_name); 2477 if (err < 0) { 2478 perror("failed to create output file"); 2479 goto out; 2480 } 2481 } 2482 2483 if (ev_qualifier_str != NULL) { 2484 const char *s = ev_qualifier_str; 2485 2486 trace.not_ev_qualifier = *s == '!'; 2487 if (trace.not_ev_qualifier) 2488 ++s; 2489 trace.ev_qualifier = strlist__new(true, s); 2490 if (trace.ev_qualifier == NULL) { 2491 fputs("Not enough memory to parse event qualifier", 2492 trace.output); 2493 err = -ENOMEM; 2494 goto out_close; 2495 } 2496 } 2497 2498 err = target__validate(&trace.opts.target); 2499 if (err) { 2500 target__strerror(&trace.opts.target, err, bf, sizeof(bf)); 2501 fprintf(trace.output, "%s", bf); 2502 goto out_close; 2503 } 2504 2505 err = target__parse_uid(&trace.opts.target); 2506 if (err) { 2507 target__strerror(&trace.opts.target, err, bf, sizeof(bf)); 2508 fprintf(trace.output, "%s", bf); 2509 goto out_close; 2510 } 2511 2512 if (!argc && target__none(&trace.opts.target)) 2513 trace.opts.target.system_wide = true; 2514 2515 if (input_name) 2516 err = trace__replay(&trace); 2517 else 2518 err = trace__run(&trace, argc, argv); 2519 2520 out_close: 2521 if (output_name != NULL) 2522 fclose(trace.output); 2523 out: 2524 return err; 2525 } 2526