1 #include <traceevent/event-parse.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"
19 #include <sys/eventfd.h>
21 #include <linux/futex.h>
23 /* For older distros: */
25 # define MAP_STACK 0x20000
29 # define MADV_HWPOISON 100
32 #ifndef MADV_MERGEABLE
33 # define MADV_MERGEABLE 12
36 #ifndef MADV_UNMERGEABLE
37 # define MADV_UNMERGEABLE 13
41 # define EFD_SEMAPHORE 1
47 u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
48 void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
52 #define TP_UINT_FIELD(bits) \
53 static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
55 return *(u##bits *)(sample->raw_data + field->offset); \
63 #define TP_UINT_FIELD__SWAPPED(bits) \
64 static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
66 u##bits value = *(u##bits *)(sample->raw_data + field->offset); \
67 return bswap_##bits(value);\
70 TP_UINT_FIELD__SWAPPED(16);
71 TP_UINT_FIELD__SWAPPED(32);
72 TP_UINT_FIELD__SWAPPED(64);
74 static int tp_field__init_uint(struct tp_field *field,
75 struct format_field *format_field,
78 field->offset = format_field->offset;
80 switch (format_field->size) {
82 field->integer = tp_field__u8;
85 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
88 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
91 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
100 static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
102 return sample->raw_data + field->offset;
105 static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
107 field->offset = format_field->offset;
108 field->pointer = tp_field__ptr;
115 struct tp_field args, ret;
119 static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
120 struct tp_field *field,
123 struct format_field *format_field = perf_evsel__field(evsel, name);
125 if (format_field == NULL)
128 return tp_field__init_uint(field, format_field, evsel->needs_swap);
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); })
135 static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
136 struct tp_field *field,
139 struct format_field *format_field = perf_evsel__field(evsel, name);
141 if (format_field == NULL)
144 return tp_field__init_ptr(field, format_field);
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); })
151 static void perf_evsel__delete_priv(struct perf_evsel *evsel)
154 perf_evsel__delete(evsel);
157 static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
159 evsel->priv = malloc(sizeof(struct syscall_tp));
160 if (evsel->priv != NULL) {
161 if (perf_evsel__init_sc_tp_uint_field(evsel, id))
164 evsel->handler = handler;
175 static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
177 struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
179 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
181 evsel = perf_evsel__newtp("syscalls", direction);
184 if (perf_evsel__init_syscall_tp(evsel, handler))
191 perf_evsel__delete_priv(evsel);
195 #define perf_evsel__sc_tp_uint(evsel, name, sample) \
196 ({ struct syscall_tp *fields = evsel->priv; \
197 fields->name.integer(&fields->name, sample); })
199 #define perf_evsel__sc_tp_ptr(evsel, name, sample) \
200 ({ struct syscall_tp *fields = evsel->priv; \
201 fields->name.pointer(&fields->name, sample); })
203 static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
204 void *sys_enter_handler,
205 void *sys_exit_handler)
208 struct perf_evsel *sys_enter, *sys_exit;
210 sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
211 if (sys_enter == NULL)
214 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
215 goto out_delete_sys_enter;
217 sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
218 if (sys_exit == NULL)
219 goto out_delete_sys_enter;
221 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
222 goto out_delete_sys_exit;
224 perf_evlist__add(evlist, sys_enter);
225 perf_evlist__add(evlist, sys_exit);
232 perf_evsel__delete_priv(sys_exit);
233 out_delete_sys_enter:
234 perf_evsel__delete_priv(sys_enter);
241 struct thread *thread;
251 const char **entries;
254 #define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
255 .nr_entries = ARRAY_SIZE(array), \
259 #define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
261 .nr_entries = ARRAY_SIZE(array), \
265 static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
267 struct syscall_arg *arg)
269 struct strarray *sa = arg->parm;
270 int idx = arg->val - sa->offset;
272 if (idx < 0 || idx >= sa->nr_entries)
273 return scnprintf(bf, size, intfmt, arg->val);
275 return scnprintf(bf, size, "%s", sa->entries[idx]);
278 static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
279 struct syscall_arg *arg)
281 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
284 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
286 #if defined(__i386__) || defined(__x86_64__)
288 * FIXME: Make this available to all arches as soon as the ioctl beautifier
289 * gets rewritten to support all arches.
291 static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
292 struct syscall_arg *arg)
294 return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg);
297 #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
298 #endif /* defined(__i386__) || defined(__x86_64__) */
300 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
301 struct syscall_arg *arg);
303 #define SCA_FD syscall_arg__scnprintf_fd
305 static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
306 struct syscall_arg *arg)
311 return scnprintf(bf, size, "CWD");
313 return syscall_arg__scnprintf_fd(bf, size, arg);
316 #define SCA_FDAT syscall_arg__scnprintf_fd_at
318 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
319 struct syscall_arg *arg);
321 #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
323 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
324 struct syscall_arg *arg)
326 return scnprintf(bf, size, "%#lx", arg->val);
329 #define SCA_HEX syscall_arg__scnprintf_hex
331 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
332 struct syscall_arg *arg)
334 int printed = 0, prot = arg->val;
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); \
350 P_MMAP_PROT(GROWSDOWN);
351 P_MMAP_PROT(GROWSUP);
355 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
360 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
362 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
363 struct syscall_arg *arg)
365 int printed = 0, flags = arg->val;
367 #define P_MMAP_FLAG(n) \
368 if (flags & MAP_##n) { \
369 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
374 P_MMAP_FLAG(PRIVATE);
378 P_MMAP_FLAG(ANONYMOUS);
379 P_MMAP_FLAG(DENYWRITE);
380 P_MMAP_FLAG(EXECUTABLE);
383 P_MMAP_FLAG(GROWSDOWN);
385 P_MMAP_FLAG(HUGETLB);
388 P_MMAP_FLAG(NONBLOCK);
389 P_MMAP_FLAG(NORESERVE);
390 P_MMAP_FLAG(POPULATE);
392 #ifdef MAP_UNINITIALIZED
393 P_MMAP_FLAG(UNINITIALIZED);
398 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
403 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
405 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
406 struct syscall_arg *arg)
408 int behavior = arg->val;
411 #define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
414 P_MADV_BHV(SEQUENTIAL);
415 P_MADV_BHV(WILLNEED);
416 P_MADV_BHV(DONTNEED);
418 P_MADV_BHV(DONTFORK);
420 P_MADV_BHV(HWPOISON);
421 #ifdef MADV_SOFT_OFFLINE
422 P_MADV_BHV(SOFT_OFFLINE);
424 P_MADV_BHV(MERGEABLE);
425 P_MADV_BHV(UNMERGEABLE);
427 P_MADV_BHV(HUGEPAGE);
429 #ifdef MADV_NOHUGEPAGE
430 P_MADV_BHV(NOHUGEPAGE);
433 P_MADV_BHV(DONTDUMP);
442 return scnprintf(bf, size, "%#x", behavior);
445 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
447 static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
448 struct syscall_arg *arg)
450 int printed = 0, op = arg->val;
453 return scnprintf(bf, size, "NONE");
455 if ((op & LOCK_##cmd) == LOCK_##cmd) { \
456 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
471 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
476 #define SCA_FLOCK syscall_arg__scnprintf_flock
478 static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
480 enum syscall_futex_args {
481 SCF_UADDR = (1 << 0),
484 SCF_TIMEOUT = (1 << 3),
485 SCF_UADDR2 = (1 << 4),
489 int cmd = op & FUTEX_CMD_MASK;
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;
510 if (op & FUTEX_PRIVATE_FLAG)
511 printed += scnprintf(bf + printed, size - printed, "|PRIV");
513 if (op & FUTEX_CLOCK_REALTIME)
514 printed += scnprintf(bf + printed, size - printed, "|CLKRT");
519 #define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
521 static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
522 static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
524 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
525 static DEFINE_STRARRAY(itimers);
527 static const char *whences[] = { "SET", "CUR", "END",
535 static DEFINE_STRARRAY(whences);
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",
543 static DEFINE_STRARRAY(fcntl_cmds);
545 static const char *rlimit_resources[] = {
546 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
547 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
550 static DEFINE_STRARRAY(rlimit_resources);
552 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
553 static DEFINE_STRARRAY(sighow);
555 static const char *clockid[] = {
556 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
557 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE",
559 static DEFINE_STRARRAY(clockid);
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",
569 static DEFINE_STRARRAY(socket_families);
571 #ifndef SOCK_TYPE_MASK
572 #define SOCK_TYPE_MASK 0xf
575 static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
576 struct syscall_arg *arg)
580 flags = type & ~SOCK_TYPE_MASK;
582 type &= SOCK_TYPE_MASK;
584 * Can't use a strarray, MIPS may override for ABI reasons.
587 #define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
592 P_SK_TYPE(SEQPACKET);
597 printed = scnprintf(bf, size, "%#x", type);
600 #define P_SK_FLAG(n) \
601 if (flags & SOCK_##n) { \
602 printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
603 flags &= ~SOCK_##n; \
611 printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
616 #define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
619 #define MSG_PROBE 0x10
621 #ifndef MSG_WAITFORONE
622 #define MSG_WAITFORONE 0x10000
624 #ifndef MSG_SENDPAGE_NOTLAST
625 #define MSG_SENDPAGE_NOTLAST 0x20000
628 #define MSG_FASTOPEN 0x20000000
631 static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
632 struct syscall_arg *arg)
634 int printed = 0, flags = arg->val;
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); \
646 P_MSG_FLAG(DONTROUTE);
651 P_MSG_FLAG(DONTWAIT);
658 P_MSG_FLAG(ERRQUEUE);
659 P_MSG_FLAG(NOSIGNAL);
661 P_MSG_FLAG(WAITFORONE);
662 P_MSG_FLAG(SENDPAGE_NOTLAST);
663 P_MSG_FLAG(FASTOPEN);
664 P_MSG_FLAG(CMSG_CLOEXEC);
668 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
673 #define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
675 static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
676 struct syscall_arg *arg)
681 if (mode == F_OK) /* 0 */
682 return scnprintf(bf, size, "F");
684 if (mode & n##_OK) { \
685 printed += scnprintf(bf + printed, size - printed, "%s", #n); \
695 printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
700 #define SCA_ACCMODE syscall_arg__scnprintf_access_mode
702 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
703 struct syscall_arg *arg)
705 int printed = 0, flags = arg->val;
707 if (!(flags & O_CREAT))
708 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
711 return scnprintf(bf, size, "RDONLY");
713 if (flags & O_##n) { \
714 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
738 if ((flags & O_SYNC) == O_SYNC)
739 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC");
751 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
756 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
758 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
759 struct syscall_arg *arg)
761 int printed = 0, flags = arg->val;
764 return scnprintf(bf, size, "NONE");
766 if (flags & EFD_##n) { \
767 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
777 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
782 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
784 static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
785 struct syscall_arg *arg)
787 int printed = 0, flags = arg->val;
790 if (flags & O_##n) { \
791 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
800 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
805 #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
807 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
812 #define P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n)
855 return scnprintf(bf, size, "%#x", sig);
858 #define SCA_SIGNUM syscall_arg__scnprintf_signum
860 #if defined(__i386__) || defined(__x86_64__)
862 * FIXME: Make this available to all arches.
864 #define TCGETS 0x5401
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",
884 static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
885 #endif /* defined(__i386__) || defined(__x86_64__) */
887 #define STRARRAY(arg, name, array) \
888 .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
889 .arg_parm = { [arg] = &strarray__##array, }
891 static struct syscall_fmt {
894 size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
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__)
969 * FIXME: Make this available to all arches.
971 [1] = SCA_STRHEXARRAY, /* cmd */
972 [2] = SCA_HEX, /* arg */ },
973 .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, },
975 [2] = SCA_HEX, /* arg */ }, },
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 */ }, },
1095 static int syscall_fmt__cmp(const void *name, const void *fmtp)
1097 const struct syscall_fmt *fmt = fmtp;
1098 return strcmp(name, fmt->name);
1101 static struct syscall_fmt *syscall_fmt__find(const char *name)
1103 const int nmemb = ARRAY_SIZE(syscall_fmts);
1104 return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
1108 struct event_format *tp_format;
1112 struct syscall_fmt *fmt;
1113 size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
1117 static size_t fprintf_duration(unsigned long t, FILE *fp)
1119 double duration = (double)t / NSEC_PER_MSEC;
1120 size_t printed = fprintf(fp, "(");
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);
1127 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration);
1128 return printed + fprintf(fp, "): ");
1131 struct thread_trace {
1135 unsigned long nr_events;
1136 unsigned long pfmaj, pfmin;
1144 struct intlist *syscall_stats;
1147 static struct thread_trace *thread_trace__new(void)
1149 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace));
1152 ttrace->paths.max = -1;
1154 ttrace->syscall_stats = intlist__new(NULL);
1159 static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
1161 struct thread_trace *ttrace;
1166 if (thread->priv == NULL)
1167 thread->priv = thread_trace__new();
1169 if (thread->priv == NULL)
1172 ttrace = thread->priv;
1173 ++ttrace->nr_events;
1177 color_fprintf(fp, PERF_COLOR_RED,
1178 "WARNING: not enough memory, dropping samples!\n");
1182 #define TRACE_PFMAJ (1 << 0)
1183 #define TRACE_PFMIN (1 << 1)
1186 struct perf_tool tool;
1193 struct syscall *table;
1195 struct record_opts opts;
1196 struct machine *host;
1199 unsigned long nr_events;
1200 struct strlist *ev_qualifier;
1201 const char *last_vfs_getname;
1202 struct intlist *tid_list;
1203 struct intlist *pid_list;
1204 double duration_filter;
1210 bool not_ev_qualifier;
1214 bool multiple_threads;
1218 bool show_tool_stats;
1219 bool trace_syscalls;
1223 static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
1225 struct thread_trace *ttrace = thread->priv;
1227 if (fd > ttrace->paths.max) {
1228 char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
1233 if (ttrace->paths.max != -1) {
1234 memset(npath + ttrace->paths.max + 1, 0,
1235 (fd - ttrace->paths.max) * sizeof(char *));
1237 memset(npath, 0, (fd + 1) * sizeof(char *));
1240 ttrace->paths.table = npath;
1241 ttrace->paths.max = fd;
1244 ttrace->paths.table[fd] = strdup(pathname);
1246 return ttrace->paths.table[fd] != NULL ? 0 : -1;
1249 static int thread__read_fd_path(struct thread *thread, int fd)
1251 char linkname[PATH_MAX], pathname[PATH_MAX];
1255 if (thread->pid_ == thread->tid) {
1256 scnprintf(linkname, sizeof(linkname),
1257 "/proc/%d/fd/%d", thread->pid_, fd);
1259 scnprintf(linkname, sizeof(linkname),
1260 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
1263 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
1266 ret = readlink(linkname, pathname, sizeof(pathname));
1268 if (ret < 0 || ret > st.st_size)
1271 pathname[ret] = '\0';
1272 return trace__set_fd_pathname(thread, fd, pathname);
1275 static const char *thread__fd_path(struct thread *thread, int fd,
1276 struct trace *trace)
1278 struct thread_trace *ttrace = thread->priv;
1286 if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) {
1289 ++trace->stats.proc_getname;
1290 if (thread__read_fd_path(thread, fd))
1294 return ttrace->paths.table[fd];
1297 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
1298 struct syscall_arg *arg)
1301 size_t printed = scnprintf(bf, size, "%d", fd);
1302 const char *path = thread__fd_path(arg->thread, fd, arg->trace);
1305 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1310 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
1311 struct syscall_arg *arg)
1314 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
1315 struct thread_trace *ttrace = arg->thread->priv;
1317 if (ttrace && fd >= 0 && fd <= ttrace->paths.max)
1318 zfree(&ttrace->paths.table[fd]);
1323 static bool trace__filter_duration(struct trace *trace, double t)
1325 return t < (trace->duration_filter * NSEC_PER_MSEC);
1328 static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
1330 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC;
1332 return fprintf(fp, "%10.3f ", ts);
1335 static bool done = false;
1336 static bool interrupted = false;
1338 static void sig_handler(int sig)
1341 interrupted = sig == SIGINT;
1344 static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
1345 u64 duration, u64 tstamp, FILE *fp)
1347 size_t printed = trace__fprintf_tstamp(trace, tstamp, fp);
1348 printed += fprintf_duration(duration, fp);
1350 if (trace->multiple_threads) {
1351 if (trace->show_comm)
1352 printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
1353 printed += fprintf(fp, "%d ", thread->tid);
1359 static int trace__process_event(struct trace *trace, struct machine *machine,
1360 union perf_event *event, struct perf_sample *sample)
1364 switch (event->header.type) {
1365 case PERF_RECORD_LOST:
1366 color_fprintf(trace->output, PERF_COLOR_RED,
1367 "LOST %" PRIu64 " events!\n", event->lost.lost);
1368 ret = machine__process_lost_event(machine, event, sample);
1370 ret = machine__process_event(machine, event, sample);
1377 static int trace__tool_process(struct perf_tool *tool,
1378 union perf_event *event,
1379 struct perf_sample *sample,
1380 struct machine *machine)
1382 struct trace *trace = container_of(tool, struct trace, tool);
1383 return trace__process_event(trace, machine, event, sample);
1386 static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
1388 int err = symbol__init();
1393 trace->host = machine__new_host();
1394 if (trace->host == NULL)
1397 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
1398 evlist->threads, trace__tool_process, false);
1405 static int syscall__set_arg_fmts(struct syscall *sc)
1407 struct format_field *field;
1410 sc->arg_scnprintf = calloc(sc->tp_format->format.nr_fields - 1, sizeof(void *));
1411 if (sc->arg_scnprintf == NULL)
1415 sc->arg_parm = sc->fmt->arg_parm;
1417 for (field = sc->tp_format->format.fields->next; field; field = field->next) {
1418 if (sc->fmt && sc->fmt->arg_scnprintf[idx])
1419 sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx];
1420 else if (field->flags & FIELD_IS_POINTER)
1421 sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex;
1428 static int trace__read_syscall_info(struct trace *trace, int id)
1432 const char *name = audit_syscall_to_name(id, trace->audit.machine);
1437 if (id > trace->syscalls.max) {
1438 struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc));
1440 if (nsyscalls == NULL)
1443 if (trace->syscalls.max != -1) {
1444 memset(nsyscalls + trace->syscalls.max + 1, 0,
1445 (id - trace->syscalls.max) * sizeof(*sc));
1447 memset(nsyscalls, 0, (id + 1) * sizeof(*sc));
1450 trace->syscalls.table = nsyscalls;
1451 trace->syscalls.max = id;
1454 sc = trace->syscalls.table + id;
1457 if (trace->ev_qualifier) {
1458 bool in = strlist__find(trace->ev_qualifier, name) != NULL;
1460 if (!(in ^ trace->not_ev_qualifier)) {
1461 sc->filtered = true;
1463 * No need to do read tracepoint information since this will be
1470 sc->fmt = syscall_fmt__find(sc->name);
1472 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
1473 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
1475 if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) {
1476 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
1477 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
1480 if (sc->tp_format == NULL)
1483 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit");
1485 return syscall__set_arg_fmts(sc);
1488 static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
1489 unsigned long *args, struct trace *trace,
1490 struct thread *thread)
1494 if (sc->tp_format != NULL) {
1495 struct format_field *field;
1497 struct syscall_arg arg = {
1504 for (field = sc->tp_format->format.fields->next; field;
1505 field = field->next, ++arg.idx, bit <<= 1) {
1509 * Suppress this argument if its value is zero and
1510 * and we don't have a string associated in an
1513 if (args[arg.idx] == 0 &&
1514 !(sc->arg_scnprintf &&
1515 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
1516 sc->arg_parm[arg.idx]))
1519 printed += scnprintf(bf + printed, size - printed,
1520 "%s%s: ", printed ? ", " : "", field->name);
1521 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
1522 arg.val = args[arg.idx];
1524 arg.parm = sc->arg_parm[arg.idx];
1525 printed += sc->arg_scnprintf[arg.idx](bf + printed,
1526 size - printed, &arg);
1528 printed += scnprintf(bf + printed, size - printed,
1529 "%ld", args[arg.idx]);
1536 printed += scnprintf(bf + printed, size - printed,
1538 printed ? ", " : "", i, args[i]);
1546 typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
1547 union perf_event *event,
1548 struct perf_sample *sample);
1550 static struct syscall *trace__syscall_info(struct trace *trace,
1551 struct perf_evsel *evsel, int id)
1557 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
1558 * before that, leaving at a higher verbosity level till that is
1559 * explained. Reproduced with plain ftrace with:
1561 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
1562 * grep "NR -1 " /t/trace_pipe
1564 * After generating some load on the machine.
1568 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
1569 id, perf_evsel__name(evsel), ++n);
1574 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) &&
1575 trace__read_syscall_info(trace, id))
1578 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL))
1581 return &trace->syscalls.table[id];
1585 fprintf(trace->output, "Problems reading syscall %d", id);
1586 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
1587 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
1588 fputs(" information\n", trace->output);
1593 static void thread__update_stats(struct thread_trace *ttrace,
1594 int id, struct perf_sample *sample)
1596 struct int_node *inode;
1597 struct stats *stats;
1600 inode = intlist__findnew(ttrace->syscall_stats, id);
1604 stats = inode->priv;
1605 if (stats == NULL) {
1606 stats = malloc(sizeof(struct stats));
1610 inode->priv = stats;
1613 if (ttrace->entry_time && sample->time > ttrace->entry_time)
1614 duration = sample->time - ttrace->entry_time;
1616 update_stats(stats, duration);
1619 static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
1620 union perf_event *event __maybe_unused,
1621 struct perf_sample *sample)
1626 struct thread *thread;
1627 int id = perf_evsel__sc_tp_uint(evsel, id, sample);
1628 struct syscall *sc = trace__syscall_info(trace, evsel, id);
1629 struct thread_trace *ttrace;
1637 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
1638 ttrace = thread__trace(thread, trace->output);
1642 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
1644 if (ttrace->entry_str == NULL) {
1645 ttrace->entry_str = malloc(1024);
1646 if (!ttrace->entry_str)
1650 ttrace->entry_time = sample->time;
1651 msg = ttrace->entry_str;
1652 printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
1654 printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
1655 args, trace, thread);
1658 if (!trace->duration_filter && !trace->summary_only) {
1659 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
1660 fprintf(trace->output, "%-70s\n", ttrace->entry_str);
1663 ttrace->entry_pending = true;
1668 static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
1669 union perf_event *event __maybe_unused,
1670 struct perf_sample *sample)
1674 struct thread *thread;
1675 int id = perf_evsel__sc_tp_uint(evsel, id, sample);
1676 struct syscall *sc = trace__syscall_info(trace, evsel, id);
1677 struct thread_trace *ttrace;
1685 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
1686 ttrace = thread__trace(thread, trace->output);
1691 thread__update_stats(ttrace, id, sample);
1693 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
1695 if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
1696 trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
1697 trace->last_vfs_getname = NULL;
1698 ++trace->stats.vfs_getname;
1701 ttrace->exit_time = sample->time;
1703 if (ttrace->entry_time) {
1704 duration = sample->time - ttrace->entry_time;
1705 if (trace__filter_duration(trace, duration))
1707 } else if (trace->duration_filter)
1710 if (trace->summary_only)
1713 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
1715 if (ttrace->entry_pending) {
1716 fprintf(trace->output, "%-70s", ttrace->entry_str);
1718 fprintf(trace->output, " ... [");
1719 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
1720 fprintf(trace->output, "]: %s()", sc->name);
1723 if (sc->fmt == NULL) {
1725 fprintf(trace->output, ") = %d", ret);
1726 } else if (ret < 0 && sc->fmt->errmsg) {
1728 const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
1729 *e = audit_errno_to_name(-ret);
1731 fprintf(trace->output, ") = -1 %s %s", e, emsg);
1732 } else if (ret == 0 && sc->fmt->timeout)
1733 fprintf(trace->output, ") = 0 Timeout");
1734 else if (sc->fmt->hexret)
1735 fprintf(trace->output, ") = %#x", ret);
1739 fputc('\n', trace->output);
1741 ttrace->entry_pending = false;
1746 static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
1747 union perf_event *event __maybe_unused,
1748 struct perf_sample *sample)
1750 trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
1754 static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
1755 union perf_event *event __maybe_unused,
1756 struct perf_sample *sample)
1758 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
1759 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
1760 struct thread *thread = machine__findnew_thread(trace->host,
1763 struct thread_trace *ttrace = thread__trace(thread, trace->output);
1768 ttrace->runtime_ms += runtime_ms;
1769 trace->runtime_ms += runtime_ms;
1773 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
1775 perf_evsel__strval(evsel, sample, "comm"),
1776 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
1778 perf_evsel__intval(evsel, sample, "vruntime"));
1782 static void print_location(FILE *f, struct perf_sample *sample,
1783 struct addr_location *al,
1784 bool print_dso, bool print_sym)
1787 if ((verbose || print_dso) && al->map)
1788 fprintf(f, "%s@", al->map->dso->long_name);
1790 if ((verbose || print_sym) && al->sym)
1791 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
1792 al->addr - al->sym->start);
1794 fprintf(f, "0x%" PRIx64, al->addr);
1796 fprintf(f, "0x%" PRIx64, sample->addr);
1799 static int trace__pgfault(struct trace *trace,
1800 struct perf_evsel *evsel,
1801 union perf_event *event,
1802 struct perf_sample *sample)
1804 struct thread *thread;
1805 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
1806 struct addr_location al;
1807 char map_type = 'd';
1808 struct thread_trace *ttrace;
1810 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
1811 ttrace = thread__trace(thread, trace->output);
1815 if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
1820 if (trace->summary_only)
1823 thread__find_addr_location(thread, trace->host, cpumode, MAP__FUNCTION,
1826 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
1828 fprintf(trace->output, "%sfault [",
1829 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
1832 print_location(trace->output, sample, &al, false, true);
1834 fprintf(trace->output, "] => ");
1836 thread__find_addr_location(thread, trace->host, cpumode, MAP__VARIABLE,
1840 thread__find_addr_location(thread, trace->host, cpumode,
1841 MAP__FUNCTION, sample->addr, &al);
1849 print_location(trace->output, sample, &al, true, false);
1851 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
1856 static bool skip_sample(struct trace *trace, struct perf_sample *sample)
1858 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
1859 (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
1862 if (trace->pid_list || trace->tid_list)
1868 static int trace__process_sample(struct perf_tool *tool,
1869 union perf_event *event,
1870 struct perf_sample *sample,
1871 struct perf_evsel *evsel,
1872 struct machine *machine __maybe_unused)
1874 struct trace *trace = container_of(tool, struct trace, tool);
1877 tracepoint_handler handler = evsel->handler;
1879 if (skip_sample(trace, sample))
1882 if (!trace->full_time && trace->base_time == 0)
1883 trace->base_time = sample->time;
1887 handler(trace, evsel, event, sample);
1893 static int parse_target_str(struct trace *trace)
1895 if (trace->opts.target.pid) {
1896 trace->pid_list = intlist__new(trace->opts.target.pid);
1897 if (trace->pid_list == NULL) {
1898 pr_err("Error parsing process id string\n");
1903 if (trace->opts.target.tid) {
1904 trace->tid_list = intlist__new(trace->opts.target.tid);
1905 if (trace->tid_list == NULL) {
1906 pr_err("Error parsing thread id string\n");
1914 static int trace__record(struct trace *trace, int argc, const char **argv)
1916 unsigned int rec_argc, i, j;
1917 const char **rec_argv;
1918 const char * const record_args[] = {
1925 const char * const sc_args[] = { "-e", };
1926 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
1927 const char * const majpf_args[] = { "-e", "major-faults" };
1928 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
1929 const char * const minpf_args[] = { "-e", "minor-faults" };
1930 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
1932 /* +1 is for the event string below */
1933 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 +
1934 majpf_args_nr + minpf_args_nr + argc;
1935 rec_argv = calloc(rec_argc + 1, sizeof(char *));
1937 if (rec_argv == NULL)
1941 for (i = 0; i < ARRAY_SIZE(record_args); i++)
1942 rec_argv[j++] = record_args[i];
1944 if (trace->trace_syscalls) {
1945 for (i = 0; i < sc_args_nr; i++)
1946 rec_argv[j++] = sc_args[i];
1948 /* event string may be different for older kernels - e.g., RHEL6 */
1949 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
1950 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
1951 else if (is_valid_tracepoint("syscalls:sys_enter"))
1952 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
1954 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
1959 if (trace->trace_pgfaults & TRACE_PFMAJ)
1960 for (i = 0; i < majpf_args_nr; i++)
1961 rec_argv[j++] = majpf_args[i];
1963 if (trace->trace_pgfaults & TRACE_PFMIN)
1964 for (i = 0; i < minpf_args_nr; i++)
1965 rec_argv[j++] = minpf_args[i];
1967 for (i = 0; i < (unsigned int)argc; i++)
1968 rec_argv[j++] = argv[i];
1970 return cmd_record(j, rec_argv, NULL);
1973 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
1975 static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
1977 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
1981 if (perf_evsel__field(evsel, "pathname") == NULL) {
1982 perf_evsel__delete(evsel);
1986 evsel->handler = trace__vfs_getname;
1987 perf_evlist__add(evlist, evsel);
1990 static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
1993 struct perf_evsel *evsel;
1994 struct perf_event_attr attr = {
1995 .type = PERF_TYPE_SOFTWARE,
1999 attr.config = config;
2000 attr.sample_period = 1;
2002 event_attr_init(&attr);
2004 evsel = perf_evsel__new(&attr);
2008 evsel->handler = trace__pgfault;
2009 perf_evlist__add(evlist, evsel);
2014 static int trace__run(struct trace *trace, int argc, const char **argv)
2016 struct perf_evlist *evlist = perf_evlist__new();
2017 struct perf_evsel *evsel;
2019 unsigned long before;
2020 const bool forks = argc > 0;
2024 if (evlist == NULL) {
2025 fprintf(trace->output, "Not enough memory to run!\n");
2029 if (trace->trace_syscalls &&
2030 perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
2034 if (trace->trace_syscalls)
2035 perf_evlist__add_vfs_getname(evlist);
2037 if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
2038 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ))
2041 if ((trace->trace_pgfaults & TRACE_PFMIN) &&
2042 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
2046 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
2047 trace__sched_stat_runtime))
2050 err = perf_evlist__create_maps(evlist, &trace->opts.target);
2052 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
2053 goto out_delete_evlist;
2056 err = trace__symbols_init(trace, evlist);
2058 fprintf(trace->output, "Problems initializing symbol libraries!\n");
2059 goto out_delete_evlist;
2062 perf_evlist__config(evlist, &trace->opts);
2064 signal(SIGCHLD, sig_handler);
2065 signal(SIGINT, sig_handler);
2068 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
2071 fprintf(trace->output, "Couldn't run the workload!\n");
2072 goto out_delete_evlist;
2076 err = perf_evlist__open(evlist);
2078 goto out_error_open;
2080 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
2082 fprintf(trace->output, "Couldn't mmap the events: %s\n", strerror(errno));
2083 goto out_delete_evlist;
2086 perf_evlist__enable(evlist);
2089 perf_evlist__start_workload(evlist);
2091 trace->multiple_threads = evlist->threads->map[0] == -1 || evlist->threads->nr > 1;
2093 before = trace->nr_events;
2095 for (i = 0; i < evlist->nr_mmaps; i++) {
2096 union perf_event *event;
2098 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
2099 const u32 type = event->header.type;
2100 tracepoint_handler handler;
2101 struct perf_sample sample;
2105 err = perf_evlist__parse_sample(evlist, event, &sample);
2107 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
2111 if (!trace->full_time && trace->base_time == 0)
2112 trace->base_time = sample.time;
2114 if (type != PERF_RECORD_SAMPLE) {
2115 trace__process_event(trace, trace->host, event, &sample);
2119 evsel = perf_evlist__id2evsel(evlist, sample.id);
2120 if (evsel == NULL) {
2121 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample.id);
2125 if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
2126 sample.raw_data == NULL) {
2127 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
2128 perf_evsel__name(evsel), sample.tid,
2129 sample.cpu, sample.raw_size);
2133 handler = evsel->handler;
2134 handler(trace, evsel, event, &sample);
2136 perf_evlist__mmap_consume(evlist, i);
2143 if (trace->nr_events == before) {
2144 int timeout = done ? 100 : -1;
2146 if (poll(evlist->pollfd, evlist->nr_fds, timeout) > 0)
2153 perf_evlist__disable(evlist);
2157 trace__fprintf_thread_summary(trace, trace->output);
2159 if (trace->show_tool_stats) {
2160 fprintf(trace->output, "Stats:\n "
2161 " vfs_getname : %" PRIu64 "\n"
2162 " proc_getname: %" PRIu64 "\n",
2163 trace->stats.vfs_getname,
2164 trace->stats.proc_getname);
2169 perf_evlist__delete(evlist);
2171 trace->live = false;
2174 char errbuf[BUFSIZ];
2177 perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
2181 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
2184 fprintf(trace->output, "%s\n", errbuf);
2185 goto out_delete_evlist;
2189 static int trace__replay(struct trace *trace)
2191 const struct perf_evsel_str_handler handlers[] = {
2192 { "probe:vfs_getname", trace__vfs_getname, },
2194 struct perf_data_file file = {
2196 .mode = PERF_DATA_MODE_READ,
2198 struct perf_session *session;
2199 struct perf_evsel *evsel;
2202 trace->tool.sample = trace__process_sample;
2203 trace->tool.mmap = perf_event__process_mmap;
2204 trace->tool.mmap2 = perf_event__process_mmap2;
2205 trace->tool.comm = perf_event__process_comm;
2206 trace->tool.exit = perf_event__process_exit;
2207 trace->tool.fork = perf_event__process_fork;
2208 trace->tool.attr = perf_event__process_attr;
2209 trace->tool.tracing_data = perf_event__process_tracing_data;
2210 trace->tool.build_id = perf_event__process_build_id;
2212 trace->tool.ordered_events = true;
2213 trace->tool.ordering_requires_timestamps = true;
2215 /* add tid to output */
2216 trace->multiple_threads = true;
2218 if (symbol__init() < 0)
2221 session = perf_session__new(&file, false, &trace->tool);
2222 if (session == NULL)
2225 trace->host = &session->machines.host;
2227 err = perf_session__set_tracepoints_handlers(session, handlers);
2231 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2232 "raw_syscalls:sys_enter");
2233 /* older kernels have syscalls tp versus raw_syscalls */
2235 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2236 "syscalls:sys_enter");
2239 (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
2240 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
2241 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
2245 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2246 "raw_syscalls:sys_exit");
2248 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2249 "syscalls:sys_exit");
2251 (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
2252 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
2253 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
2257 evlist__for_each(session->evlist, evsel) {
2258 if (evsel->attr.type == PERF_TYPE_SOFTWARE &&
2259 (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
2260 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
2261 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS))
2262 evsel->handler = trace__pgfault;
2265 err = parse_target_str(trace);
2271 err = perf_session__process_events(session, &trace->tool);
2273 pr_err("Failed to process events, error %d", err);
2275 else if (trace->summary)
2276 trace__fprintf_thread_summary(trace, trace->output);
2279 perf_session__delete(session);
2284 static size_t trace__fprintf_threads_header(FILE *fp)
2288 printed = fprintf(fp, "\n Summary of events:\n\n");
2293 static size_t thread__dump_stats(struct thread_trace *ttrace,
2294 struct trace *trace, FILE *fp)
2296 struct stats *stats;
2299 struct int_node *inode = intlist__first(ttrace->syscall_stats);
2304 printed += fprintf(fp, "\n");
2306 printed += fprintf(fp, " syscall calls min avg max stddev\n");
2307 printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
2308 printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");
2310 /* each int_node is a syscall */
2312 stats = inode->priv;
2314 double min = (double)(stats->min) / NSEC_PER_MSEC;
2315 double max = (double)(stats->max) / NSEC_PER_MSEC;
2316 double avg = avg_stats(stats);
2318 u64 n = (u64) stats->n;
2320 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
2321 avg /= NSEC_PER_MSEC;
2323 sc = &trace->syscalls.table[inode->i];
2324 printed += fprintf(fp, " %-15s", sc->name);
2325 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
2327 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
2330 inode = intlist__next(inode);
2333 printed += fprintf(fp, "\n\n");
2338 /* struct used to pass data to per-thread function */
2339 struct summary_data {
2341 struct trace *trace;
2345 static int trace__fprintf_one_thread(struct thread *thread, void *priv)
2347 struct summary_data *data = priv;
2348 FILE *fp = data->fp;
2349 size_t printed = data->printed;
2350 struct trace *trace = data->trace;
2351 struct thread_trace *ttrace = thread->priv;
2357 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
2359 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
2360 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
2361 printed += fprintf(fp, "%.1f%%", ratio);
2363 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
2365 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
2366 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
2367 printed += thread__dump_stats(ttrace, trace, fp);
2369 data->printed += printed;
2374 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
2376 struct summary_data data = {
2380 data.printed = trace__fprintf_threads_header(fp);
2382 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
2384 return data.printed;
2387 static int trace__set_duration(const struct option *opt, const char *str,
2388 int unset __maybe_unused)
2390 struct trace *trace = opt->value;
2392 trace->duration_filter = atof(str);
2396 static int trace__open_output(struct trace *trace, const char *filename)
2400 if (!stat(filename, &st) && st.st_size) {
2401 char oldname[PATH_MAX];
2403 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
2405 rename(filename, oldname);
2408 trace->output = fopen(filename, "w");
2410 return trace->output == NULL ? -errno : 0;
2413 static int parse_pagefaults(const struct option *opt, const char *str,
2414 int unset __maybe_unused)
2416 int *trace_pgfaults = opt->value;
2418 if (strcmp(str, "all") == 0)
2419 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
2420 else if (strcmp(str, "maj") == 0)
2421 *trace_pgfaults |= TRACE_PFMAJ;
2422 else if (strcmp(str, "min") == 0)
2423 *trace_pgfaults |= TRACE_PFMIN;
2430 int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
2432 const char * const trace_usage[] = {
2433 "perf trace [<options>] [<command>]",
2434 "perf trace [<options>] -- <command> [<options>]",
2435 "perf trace record [<options>] [<command>]",
2436 "perf trace record [<options>] -- <command> [<options>]",
2439 struct trace trace = {
2441 .machine = audit_detect_machine(),
2442 .open_id = audit_name_to_syscall("open", trace.audit.machine),
2452 .user_freq = UINT_MAX,
2453 .user_interval = ULLONG_MAX,
2454 .no_buffering = true,
2459 .trace_syscalls = true,
2461 const char *output_name = NULL;
2462 const char *ev_qualifier_str = NULL;
2463 const struct option trace_options[] = {
2464 OPT_BOOLEAN(0, "comm", &trace.show_comm,
2465 "show the thread COMM next to its id"),
2466 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
2467 OPT_STRING('e', "expr", &ev_qualifier_str, "expr",
2468 "list of events to trace"),
2469 OPT_STRING('o', "output", &output_name, "file", "output file name"),
2470 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
2471 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
2472 "trace events on existing process id"),
2473 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
2474 "trace events on existing thread id"),
2475 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
2476 "system-wide collection from all CPUs"),
2477 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
2478 "list of cpus to monitor"),
2479 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
2480 "child tasks do not inherit counters"),
2481 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
2482 "number of mmap data pages",
2483 perf_evlist__parse_mmap_pages),
2484 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
2486 OPT_CALLBACK(0, "duration", &trace, "float",
2487 "show only events with duration > N.M ms",
2488 trace__set_duration),
2489 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
2490 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
2491 OPT_BOOLEAN('T', "time", &trace.full_time,
2492 "Show full timestamp, not time relative to first start"),
2493 OPT_BOOLEAN('s', "summary", &trace.summary_only,
2494 "Show only syscall summary with statistics"),
2495 OPT_BOOLEAN('S', "with-summary", &trace.summary,
2496 "Show all syscalls and summary with statistics"),
2497 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
2498 "Trace pagefaults", parse_pagefaults, "maj"),
2499 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
2505 argc = parse_options(argc, argv, trace_options, trace_usage,
2506 PARSE_OPT_STOP_AT_NON_OPTION);
2508 if (trace.trace_pgfaults) {
2509 trace.opts.sample_address = true;
2510 trace.opts.sample_time = true;
2513 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
2514 return trace__record(&trace, argc-1, &argv[1]);
2516 /* summary_only implies summary option, but don't overwrite summary if set */
2517 if (trace.summary_only)
2518 trace.summary = trace.summary_only;
2520 if (!trace.trace_syscalls && !trace.trace_pgfaults) {
2521 pr_err("Please specify something to trace.\n");
2525 if (output_name != NULL) {
2526 err = trace__open_output(&trace, output_name);
2528 perror("failed to create output file");
2533 if (ev_qualifier_str != NULL) {
2534 const char *s = ev_qualifier_str;
2536 trace.not_ev_qualifier = *s == '!';
2537 if (trace.not_ev_qualifier)
2539 trace.ev_qualifier = strlist__new(true, s);
2540 if (trace.ev_qualifier == NULL) {
2541 fputs("Not enough memory to parse event qualifier",
2548 err = target__validate(&trace.opts.target);
2550 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
2551 fprintf(trace.output, "%s", bf);
2555 err = target__parse_uid(&trace.opts.target);
2557 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
2558 fprintf(trace.output, "%s", bf);
2562 if (!argc && target__none(&trace.opts.target))
2563 trace.opts.target.system_wide = true;
2566 err = trace__replay(&trace);
2568 err = trace__run(&trace, argc, argv);
2571 if (output_name != NULL)
2572 fclose(trace.output);