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Merge branch 'acpica'
[deliverable/linux.git] / tools / perf / builtin-trace.c
CommitLineData
4e319027 1#include <traceevent/event-parse.h>
514f1c67 2#include "builtin.h"
752fde44 3#include "util/color.h"
7c304ee0 4#include "util/debug.h"
514f1c67 5#include "util/evlist.h"
752fde44 6#include "util/machine.h"
6810fc91 7#include "util/session.h"
752fde44 8#include "util/thread.h"
514f1c67 9#include "util/parse-options.h"
2ae3a312 10#include "util/strlist.h"
bdc89661 11#include "util/intlist.h"
514f1c67 12#include "util/thread_map.h"
bf2575c1 13#include "util/stat.h"
97978b3e 14#include "trace-event.h"
9aca7f17 15#include "util/parse-events.h"
514f1c67
ACM		 16
17#include <libaudit.h>
18#include <stdlib.h>
ae685380 19#include <sys/mman.h>
f9da0b0c 20#include <linux/futex.h>
514f1c67 21
456857bd
IM		 22/* For older distros: */
23#ifndef MAP_STACK
24# define MAP_STACK 0x20000
25#endif
26
27#ifndef MADV_HWPOISON
28# define MADV_HWPOISON 100
29#endif
30
31#ifndef MADV_MERGEABLE
32# define MADV_MERGEABLE 12
33#endif
34
35#ifndef MADV_UNMERGEABLE
36# define MADV_UNMERGEABLE 13
37#endif
38
79d26a6a
BH		 39#ifndef EFD_SEMAPHORE
40# define EFD_SEMAPHORE 1
41#endif
42
c188e7ac
ACM		 43#ifndef EFD_NONBLOCK
44# define EFD_NONBLOCK 00004000
45#endif
46
47#ifndef EFD_CLOEXEC
48# define EFD_CLOEXEC 02000000
49#endif
50
51#ifndef O_CLOEXEC
52# define O_CLOEXEC 02000000
53#endif
54
55#ifndef SOCK_DCCP
56# define SOCK_DCCP 6
57#endif
58
59#ifndef SOCK_CLOEXEC
60# define SOCK_CLOEXEC 02000000
61#endif
62
63#ifndef SOCK_NONBLOCK
64# define SOCK_NONBLOCK 00004000
65#endif
66
67#ifndef MSG_CMSG_CLOEXEC
68# define MSG_CMSG_CLOEXEC 0x40000000
69#endif
70
a1c2552d
ACM		 71#ifndef PERF_FLAG_FD_NO_GROUP
72# define PERF_FLAG_FD_NO_GROUP (1UL << 0)
73#endif
74
75#ifndef PERF_FLAG_FD_OUTPUT
76# define PERF_FLAG_FD_OUTPUT (1UL << 1)
77#endif
78
79#ifndef PERF_FLAG_PID_CGROUP
80# define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */
81#endif
82
83#ifndef PERF_FLAG_FD_CLOEXEC
84# define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */
85#endif
86
87
77170988
ACM		 88struct tp_field {
89 int offset;
90 union {
91 u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
92 void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
93 };
94};
95
96#define TP_UINT_FIELD(bits) \
97static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
98{ \
55d43bca
DA		 99 u##bits value; \
100 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
101 return value; \
77170988
ACM		 102}
103
104TP_UINT_FIELD(8);
105TP_UINT_FIELD(16);
106TP_UINT_FIELD(32);
107TP_UINT_FIELD(64);
108
109#define TP_UINT_FIELD__SWAPPED(bits) \
110static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
111{ \
55d43bca
DA		 112 u##bits value; \
113 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
77170988
ACM		 114 return bswap_##bits(value);\
115}
116
117TP_UINT_FIELD__SWAPPED(16);
118TP_UINT_FIELD__SWAPPED(32);
119TP_UINT_FIELD__SWAPPED(64);
120
121static int tp_field__init_uint(struct tp_field *field,
122 struct format_field *format_field,
123 bool needs_swap)
124{
125 field->offset = format_field->offset;
126
127 switch (format_field->size) {
128 case 1:
129 field->integer = tp_field__u8;
130 break;
131 case 2:
132 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
133 break;
134 case 4:
135 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
136 break;
137 case 8:
138 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
139 break;
140 default:
141 return -1;
142 }
143
144 return 0;
145}
146
147static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
148{
149 return sample->raw_data + field->offset;
150}
151
152static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
153{
154 field->offset = format_field->offset;
155 field->pointer = tp_field__ptr;
156 return 0;
157}
158
159struct syscall_tp {
160 struct tp_field id;
161 union {
162 struct tp_field args, ret;
163 };
164};
165
166static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
167 struct tp_field *field,
168 const char *name)
169{
170 struct format_field *format_field = perf_evsel__field(evsel, name);
171
172 if (format_field == NULL)
173 return -1;
174
175 return tp_field__init_uint(field, format_field, evsel->needs_swap);
176}
177
178#define perf_evsel__init_sc_tp_uint_field(evsel, name) \
179 ({ struct syscall_tp *sc = evsel->priv;\
180 perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
181
182static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
183 struct tp_field *field,
184 const char *name)
185{
186 struct format_field *format_field = perf_evsel__field(evsel, name);
187
188 if (format_field == NULL)
189 return -1;
190
191 return tp_field__init_ptr(field, format_field);
192}
193
194#define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
195 ({ struct syscall_tp *sc = evsel->priv;\
196 perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
197
198static void perf_evsel__delete_priv(struct perf_evsel *evsel)
199{
04662523 200 zfree(&evsel->priv);
77170988
ACM		 201 perf_evsel__delete(evsel);
202}
203
96695d44
NK		 204static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
205{
206 evsel->priv = malloc(sizeof(struct syscall_tp));
207 if (evsel->priv != NULL) {
208 if (perf_evsel__init_sc_tp_uint_field(evsel, id))
209 goto out_delete;
210
211 evsel->handler = handler;
212 return 0;
213 }
214
215 return -ENOMEM;
216
217out_delete:
04662523 218 zfree(&evsel->priv);
96695d44
NK		 219 return -ENOENT;
220}
221
ef503831 222static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
77170988 223{
ef503831 224 struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
77170988 225
9aca7f17
DA		 226 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
227 if (evsel == NULL)
228 evsel = perf_evsel__newtp("syscalls", direction);
229
77170988 230 if (evsel) {
96695d44 231 if (perf_evsel__init_syscall_tp(evsel, handler))
77170988 232 goto out_delete;
77170988
ACM		 233 }
234
235 return evsel;
236
237out_delete:
238 perf_evsel__delete_priv(evsel);
239 return NULL;
240}
241
242#define perf_evsel__sc_tp_uint(evsel, name, sample) \
243 ({ struct syscall_tp *fields = evsel->priv; \
244 fields->name.integer(&fields->name, sample); })
245
246#define perf_evsel__sc_tp_ptr(evsel, name, sample) \
247 ({ struct syscall_tp *fields = evsel->priv; \
248 fields->name.pointer(&fields->name, sample); })
249
250static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
251 void *sys_enter_handler,
252 void *sys_exit_handler)
253{
254 int ret = -1;
77170988
ACM		 255 struct perf_evsel *sys_enter, *sys_exit;
256
ef503831 257 sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
77170988
ACM		 258 if (sys_enter == NULL)
259 goto out;
260
261 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
262 goto out_delete_sys_enter;
263
ef503831 264 sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
77170988
ACM		 265 if (sys_exit == NULL)
266 goto out_delete_sys_enter;
267
268 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
269 goto out_delete_sys_exit;
270
271 perf_evlist__add(evlist, sys_enter);
272 perf_evlist__add(evlist, sys_exit);
273
274 ret = 0;
275out:
276 return ret;
277
278out_delete_sys_exit:
279 perf_evsel__delete_priv(sys_exit);
280out_delete_sys_enter:
281 perf_evsel__delete_priv(sys_enter);
282 goto out;
283}
284
285
01533e97
ACM		 286struct syscall_arg {
287 unsigned long val;
75b757ca
ACM		 288 struct thread *thread;
289 struct trace *trace;
1f115cb7 290 void *parm;
01533e97
ACM		 291 u8 idx;
292 u8 mask;
293};
294
1f115cb7 295struct strarray {
03e3adc9 296 int offset;
1f115cb7
ACM		 297 int nr_entries;
298 const char **entries;
299};
300
301#define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
302 .nr_entries = ARRAY_SIZE(array), \
303 .entries = array, \
304}
305
03e3adc9
ACM		 306#define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
307 .offset = off, \
308 .nr_entries = ARRAY_SIZE(array), \
309 .entries = array, \
310}
311
975b7c2f
ACM		 312static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
313 const char *intfmt,
314 struct syscall_arg *arg)
1f115cb7 315{
1f115cb7 316 struct strarray *sa = arg->parm;
03e3adc9 317 int idx = arg->val - sa->offset;
1f115cb7
ACM		 318
319 if (idx < 0 || idx >= sa->nr_entries)
975b7c2f 320 return scnprintf(bf, size, intfmt, arg->val);
1f115cb7
ACM		 321
322 return scnprintf(bf, size, "%s", sa->entries[idx]);
323}
324
975b7c2f
ACM		 325static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
326 struct syscall_arg *arg)
327{
328 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
329}
330
1f115cb7
ACM		 331#define SCA_STRARRAY syscall_arg__scnprintf_strarray
332
844ae5b4
ACM		 333#if defined(__i386__) || defined(__x86_64__)
334/*
335 * FIXME: Make this available to all arches as soon as the ioctl beautifier
336 * gets rewritten to support all arches.
337 */
78645cf3
ACM		 338static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
339 struct syscall_arg *arg)
340{
341 return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg);
342}
343
344#define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
844ae5b4 345#endif /* defined(__i386__) || defined(__x86_64__) */
78645cf3 346
75b757ca
ACM		 347static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
348 struct syscall_arg *arg);
349
350#define SCA_FD syscall_arg__scnprintf_fd
351
352static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
353 struct syscall_arg *arg)
354{
355 int fd = arg->val;
356
357 if (fd == AT_FDCWD)
358 return scnprintf(bf, size, "CWD");
359
360 return syscall_arg__scnprintf_fd(bf, size, arg);
361}
362
363#define SCA_FDAT syscall_arg__scnprintf_fd_at
364
365static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
366 struct syscall_arg *arg);
367
368#define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
369
6e7eeb51 370static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
01533e97 371 struct syscall_arg *arg)
13d4ff3e 372{
01533e97 373 return scnprintf(bf, size, "%#lx", arg->val);
13d4ff3e
ACM		 374}
375
beccb2b5
ACM		 376#define SCA_HEX syscall_arg__scnprintf_hex
377
a1c2552d
ACM		 378static size_t syscall_arg__scnprintf_int(char *bf, size_t size,
379 struct syscall_arg *arg)
380{
381 return scnprintf(bf, size, "%d", arg->val);
382}
383
384#define SCA_INT syscall_arg__scnprintf_int
385
6e7eeb51 386static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
01533e97 387 struct syscall_arg *arg)
ae685380 388{
01533e97 389 int printed = 0, prot = arg->val;
ae685380
ACM		 390
391 if (prot == PROT_NONE)
392 return scnprintf(bf, size, "NONE");
393#define P_MMAP_PROT(n) \
394 if (prot & PROT_##n) { \
395 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
396 prot &= ~PROT_##n; \
397 }
398
399 P_MMAP_PROT(EXEC);
400 P_MMAP_PROT(READ);
401 P_MMAP_PROT(WRITE);
402#ifdef PROT_SEM
403 P_MMAP_PROT(SEM);
404#endif
405 P_MMAP_PROT(GROWSDOWN);
406 P_MMAP_PROT(GROWSUP);
407#undef P_MMAP_PROT
408
409 if (prot)
410 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
411
412 return printed;
413}
414
415#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
416
6e7eeb51 417static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
01533e97 418 struct syscall_arg *arg)
941557e0 419{
01533e97 420 int printed = 0, flags = arg->val;
941557e0
ACM		 421
422#define P_MMAP_FLAG(n) \
423 if (flags & MAP_##n) { \
424 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
425 flags &= ~MAP_##n; \
426 }
427
428 P_MMAP_FLAG(SHARED);
429 P_MMAP_FLAG(PRIVATE);
41817815 430#ifdef MAP_32BIT
941557e0 431 P_MMAP_FLAG(32BIT);
41817815 432#endif
941557e0
ACM		 433 P_MMAP_FLAG(ANONYMOUS);
434 P_MMAP_FLAG(DENYWRITE);
435 P_MMAP_FLAG(EXECUTABLE);
436 P_MMAP_FLAG(FILE);
437 P_MMAP_FLAG(FIXED);
438 P_MMAP_FLAG(GROWSDOWN);
f2935f3e 439#ifdef MAP_HUGETLB
941557e0 440 P_MMAP_FLAG(HUGETLB);
f2935f3e 441#endif
941557e0
ACM		 442 P_MMAP_FLAG(LOCKED);
443 P_MMAP_FLAG(NONBLOCK);
444 P_MMAP_FLAG(NORESERVE);
445 P_MMAP_FLAG(POPULATE);
446 P_MMAP_FLAG(STACK);
447#ifdef MAP_UNINITIALIZED
448 P_MMAP_FLAG(UNINITIALIZED);
449#endif
450#undef P_MMAP_FLAG
451
452 if (flags)
453 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
454
455 return printed;
456}
457
458#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
459
86998dda
AS		 460static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
461 struct syscall_arg *arg)
462{
463 int printed = 0, flags = arg->val;
464
465#define P_MREMAP_FLAG(n) \
466 if (flags & MREMAP_##n) { \
467 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
468 flags &= ~MREMAP_##n; \
469 }
470
471 P_MREMAP_FLAG(MAYMOVE);
472#ifdef MREMAP_FIXED
473 P_MREMAP_FLAG(FIXED);
474#endif
475#undef P_MREMAP_FLAG
476
477 if (flags)
478 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
479
480 return printed;
481}
482
483#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
484
6e7eeb51 485static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
01533e97 486 struct syscall_arg *arg)
9e9716d1 487{
01533e97 488 int behavior = arg->val;
9e9716d1
ACM		 489
490 switch (behavior) {
491#define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
492 P_MADV_BHV(NORMAL);
493 P_MADV_BHV(RANDOM);
494 P_MADV_BHV(SEQUENTIAL);
495 P_MADV_BHV(WILLNEED);
496 P_MADV_BHV(DONTNEED);
497 P_MADV_BHV(REMOVE);
498 P_MADV_BHV(DONTFORK);
499 P_MADV_BHV(DOFORK);
500 P_MADV_BHV(HWPOISON);
501#ifdef MADV_SOFT_OFFLINE
502 P_MADV_BHV(SOFT_OFFLINE);
503#endif
504 P_MADV_BHV(MERGEABLE);
505 P_MADV_BHV(UNMERGEABLE);
f2935f3e 506#ifdef MADV_HUGEPAGE
9e9716d1 507 P_MADV_BHV(HUGEPAGE);
f2935f3e
DA		 508#endif
509#ifdef MADV_NOHUGEPAGE
9e9716d1 510 P_MADV_BHV(NOHUGEPAGE);
f2935f3e 511#endif
9e9716d1
ACM		 512#ifdef MADV_DONTDUMP
513 P_MADV_BHV(DONTDUMP);
514#endif
515#ifdef MADV_DODUMP
516 P_MADV_BHV(DODUMP);
517#endif
518#undef P_MADV_PHV
519 default: break;
520 }
521
522 return scnprintf(bf, size, "%#x", behavior);
523}
524
525#define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
526
5cea6ff2
ACM		 527static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
528 struct syscall_arg *arg)
529{
530 int printed = 0, op = arg->val;
531
532 if (op == 0)
533 return scnprintf(bf, size, "NONE");
534#define P_CMD(cmd) \
535 if ((op & LOCK_##cmd) == LOCK_##cmd) { \
536 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
537 op &= ~LOCK_##cmd; \
538 }
539
540 P_CMD(SH);
541 P_CMD(EX);
542 P_CMD(NB);
543 P_CMD(UN);
544 P_CMD(MAND);
545 P_CMD(RW);
546 P_CMD(READ);
547 P_CMD(WRITE);
548#undef P_OP
549
550 if (op)
551 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
552
553 return printed;
554}
555
556#define SCA_FLOCK syscall_arg__scnprintf_flock
557
01533e97 558static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
f9da0b0c
ACM		 559{
560 enum syscall_futex_args {
561 SCF_UADDR = (1 << 0),
562 SCF_OP = (1 << 1),
563 SCF_VAL = (1 << 2),
564 SCF_TIMEOUT = (1 << 3),
565 SCF_UADDR2 = (1 << 4),
566 SCF_VAL3 = (1 << 5),
567 };
01533e97 568 int op = arg->val;
f9da0b0c
ACM		 569 int cmd = op & FUTEX_CMD_MASK;
570 size_t printed = 0;
571
572 switch (cmd) {
573#define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n);
01533e97
ACM		 574 P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
575 P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
576 P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
577 P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break;
578 P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break;
579 P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break;
f9da0b0c 580 P_FUTEX_OP(WAKE_OP); break;
01533e97
ACM		 581 P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
582 P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
583 P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
584 P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break;
585 P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break;
f9da0b0c
ACM		 586 P_FUTEX_OP(WAIT_REQUEUE_PI); break;
587 default: printed = scnprintf(bf, size, "%#x", cmd); break;
588 }
589
590 if (op & FUTEX_PRIVATE_FLAG)
591 printed += scnprintf(bf + printed, size - printed, "|PRIV");
592
593 if (op & FUTEX_CLOCK_REALTIME)
594 printed += scnprintf(bf + printed, size - printed, "|CLKRT");
595
596 return printed;
597}
598
efe6b882
ACM		 599#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
600
03e3adc9
ACM		 601static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
602static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
eac032c5 603
1f115cb7
ACM		 604static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
605static DEFINE_STRARRAY(itimers);
606
efe6b882
ACM		 607static const char *whences[] = { "SET", "CUR", "END",
608#ifdef SEEK_DATA
609"DATA",
610#endif
611#ifdef SEEK_HOLE
612"HOLE",
613#endif
614};
615static DEFINE_STRARRAY(whences);
f9da0b0c 616
80f587d5
ACM		 617static const char *fcntl_cmds[] = {
618 "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
619 "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64",
620 "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX",
621 "F_GETOWNER_UIDS",
622};
623static DEFINE_STRARRAY(fcntl_cmds);
624
c045bf02
ACM		 625static const char *rlimit_resources[] = {
626 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
627 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
628 "RTTIME",
629};
630static DEFINE_STRARRAY(rlimit_resources);
631
eb5b1b14
ACM		 632static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
633static DEFINE_STRARRAY(sighow);
634
4f8c1b74
DA		 635static const char *clockid[] = {
636 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
637 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE",
638};
639static DEFINE_STRARRAY(clockid);
640
e10bce81
ACM		 641static const char *socket_families[] = {
642 "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
643 "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
644 "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
645 "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
646 "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
647 "ALG", "NFC", "VSOCK",
648};
649static DEFINE_STRARRAY(socket_families);
650
a28b24b2
ACM		 651#ifndef SOCK_TYPE_MASK
652#define SOCK_TYPE_MASK 0xf
653#endif
654
655static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
656 struct syscall_arg *arg)
657{
658 size_t printed;
659 int type = arg->val,
660 flags = type & ~SOCK_TYPE_MASK;
661
662 type &= SOCK_TYPE_MASK;
663 /*
664 * Can't use a strarray, MIPS may override for ABI reasons.
665 */
666 switch (type) {
667#define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
668 P_SK_TYPE(STREAM);
669 P_SK_TYPE(DGRAM);
670 P_SK_TYPE(RAW);
671 P_SK_TYPE(RDM);
672 P_SK_TYPE(SEQPACKET);
673 P_SK_TYPE(DCCP);
674 P_SK_TYPE(PACKET);
675#undef P_SK_TYPE
676 default:
677 printed = scnprintf(bf, size, "%#x", type);
678 }
679
680#define P_SK_FLAG(n) \
681 if (flags & SOCK_##n) { \
682 printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
683 flags &= ~SOCK_##n; \
684 }
685
686 P_SK_FLAG(CLOEXEC);
687 P_SK_FLAG(NONBLOCK);
688#undef P_SK_FLAG
689
690 if (flags)
691 printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
692
693 return printed;
694}
695
696#define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
697
b2cc99fd
ACM		 698#ifndef MSG_PROBE
699#define MSG_PROBE 0x10
700#endif
b6e8f8f4
DA		 701#ifndef MSG_WAITFORONE
702#define MSG_WAITFORONE 0x10000
703#endif
b2cc99fd
ACM		 704#ifndef MSG_SENDPAGE_NOTLAST
705#define MSG_SENDPAGE_NOTLAST 0x20000
706#endif
707#ifndef MSG_FASTOPEN
708#define MSG_FASTOPEN 0x20000000
709#endif
710
711static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
712 struct syscall_arg *arg)
713{
714 int printed = 0, flags = arg->val;
715
716 if (flags == 0)
717 return scnprintf(bf, size, "NONE");
718#define P_MSG_FLAG(n) \
719 if (flags & MSG_##n) { \
720 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
721 flags &= ~MSG_##n; \
722 }
723
724 P_MSG_FLAG(OOB);
725 P_MSG_FLAG(PEEK);
726 P_MSG_FLAG(DONTROUTE);
727 P_MSG_FLAG(TRYHARD);
728 P_MSG_FLAG(CTRUNC);
729 P_MSG_FLAG(PROBE);
730 P_MSG_FLAG(TRUNC);
731 P_MSG_FLAG(DONTWAIT);
732 P_MSG_FLAG(EOR);
733 P_MSG_FLAG(WAITALL);
734 P_MSG_FLAG(FIN);
735 P_MSG_FLAG(SYN);
736 P_MSG_FLAG(CONFIRM);
737 P_MSG_FLAG(RST);
738 P_MSG_FLAG(ERRQUEUE);
739 P_MSG_FLAG(NOSIGNAL);
740 P_MSG_FLAG(MORE);
741 P_MSG_FLAG(WAITFORONE);
742 P_MSG_FLAG(SENDPAGE_NOTLAST);
743 P_MSG_FLAG(FASTOPEN);
744 P_MSG_FLAG(CMSG_CLOEXEC);
745#undef P_MSG_FLAG
746
747 if (flags)
748 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
749
750 return printed;
751}
752
753#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
754
51108999
ACM		 755static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
756 struct syscall_arg *arg)
757{
758 size_t printed = 0;
759 int mode = arg->val;
760
761 if (mode == F_OK) /* 0 */
762 return scnprintf(bf, size, "F");
763#define P_MODE(n) \
764 if (mode & n##_OK) { \
765 printed += scnprintf(bf + printed, size - printed, "%s", #n); \
766 mode &= ~n##_OK; \
767 }
768
769 P_MODE(R);
770 P_MODE(W);
771 P_MODE(X);
772#undef P_MODE
773
774 if (mode)
775 printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
776
777 return printed;
778}
779
780#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
781
be65a89a 782static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
01533e97 783 struct syscall_arg *arg)
be65a89a 784{
01533e97 785 int printed = 0, flags = arg->val;
be65a89a
ACM		 786
787 if (!(flags & O_CREAT))
01533e97 788 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
be65a89a
ACM		 789
790 if (flags == 0)
791 return scnprintf(bf, size, "RDONLY");
792#define P_FLAG(n) \
793 if (flags & O_##n) { \
794 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
795 flags &= ~O_##n; \
796 }
797
798 P_FLAG(APPEND);
799 P_FLAG(ASYNC);
800 P_FLAG(CLOEXEC);
801 P_FLAG(CREAT);
802 P_FLAG(DIRECT);
803 P_FLAG(DIRECTORY);
804 P_FLAG(EXCL);
805 P_FLAG(LARGEFILE);
806 P_FLAG(NOATIME);
807 P_FLAG(NOCTTY);
808#ifdef O_NONBLOCK
809 P_FLAG(NONBLOCK);
810#elif O_NDELAY
811 P_FLAG(NDELAY);
812#endif
813#ifdef O_PATH
814 P_FLAG(PATH);
815#endif
816 P_FLAG(RDWR);
817#ifdef O_DSYNC
818 if ((flags & O_SYNC) == O_SYNC)
819 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC");
820 else {
821 P_FLAG(DSYNC);
822 }
823#else
824 P_FLAG(SYNC);
825#endif
826 P_FLAG(TRUNC);
827 P_FLAG(WRONLY);
828#undef P_FLAG
829
830 if (flags)
831 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
832
833 return printed;
834}
835
836#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
837
a1c2552d
ACM		 838static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size,
839 struct syscall_arg *arg)
840{
841 int printed = 0, flags = arg->val;
842
843 if (flags == 0)
844 return 0;
845
846#define P_FLAG(n) \
847 if (flags & PERF_FLAG_##n) { \
848 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
849 flags &= ~PERF_FLAG_##n; \
850 }
851
852 P_FLAG(FD_NO_GROUP);
853 P_FLAG(FD_OUTPUT);
854 P_FLAG(PID_CGROUP);
855 P_FLAG(FD_CLOEXEC);
856#undef P_FLAG
857
858 if (flags)
859 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
860
861 return printed;
862}
863
864#define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags
865
49af9e93
ACM		 866static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
867 struct syscall_arg *arg)
868{
869 int printed = 0, flags = arg->val;
870
871 if (flags == 0)
872 return scnprintf(bf, size, "NONE");
873#define P_FLAG(n) \
874 if (flags & EFD_##n) { \
875 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
876 flags &= ~EFD_##n; \
877 }
878
879 P_FLAG(SEMAPHORE);
880 P_FLAG(CLOEXEC);
881 P_FLAG(NONBLOCK);
882#undef P_FLAG
883
884 if (flags)
885 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
886
887 return printed;
888}
889
890#define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
891
46cce19b
ACM		 892static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
893 struct syscall_arg *arg)
894{
895 int printed = 0, flags = arg->val;
896
897#define P_FLAG(n) \
898 if (flags & O_##n) { \
899 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
900 flags &= ~O_##n; \
901 }
902
903 P_FLAG(CLOEXEC);
904 P_FLAG(NONBLOCK);
905#undef P_FLAG
906
907 if (flags)
908 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
909
910 return printed;
911}
912
913#define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
914
8bad5b0a
ACM		 915static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
916{
917 int sig = arg->val;
918
919 switch (sig) {
920#define P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n)
921 P_SIGNUM(HUP);
922 P_SIGNUM(INT);
923 P_SIGNUM(QUIT);
924 P_SIGNUM(ILL);
925 P_SIGNUM(TRAP);
926 P_SIGNUM(ABRT);
927 P_SIGNUM(BUS);
928 P_SIGNUM(FPE);
929 P_SIGNUM(KILL);
930 P_SIGNUM(USR1);
931 P_SIGNUM(SEGV);
932 P_SIGNUM(USR2);
933 P_SIGNUM(PIPE);
934 P_SIGNUM(ALRM);
935 P_SIGNUM(TERM);
8bad5b0a
ACM		 936 P_SIGNUM(CHLD);
937 P_SIGNUM(CONT);
938 P_SIGNUM(STOP);
939 P_SIGNUM(TSTP);
940 P_SIGNUM(TTIN);
941 P_SIGNUM(TTOU);
942 P_SIGNUM(URG);
943 P_SIGNUM(XCPU);
944 P_SIGNUM(XFSZ);
945 P_SIGNUM(VTALRM);
946 P_SIGNUM(PROF);
947 P_SIGNUM(WINCH);
948 P_SIGNUM(IO);
949 P_SIGNUM(PWR);
950 P_SIGNUM(SYS);
02c5bb4a
BH		 951#ifdef SIGEMT
952 P_SIGNUM(EMT);
953#endif
954#ifdef SIGSTKFLT
955 P_SIGNUM(STKFLT);
956#endif
957#ifdef SIGSWI
958 P_SIGNUM(SWI);
959#endif
8bad5b0a
ACM		 960 default: break;
961 }
962
963 return scnprintf(bf, size, "%#x", sig);
964}
965
966#define SCA_SIGNUM syscall_arg__scnprintf_signum
967
844ae5b4
ACM		 968#if defined(__i386__) || defined(__x86_64__)
969/*
970 * FIXME: Make this available to all arches.
971 */
78645cf3
ACM		 972#define TCGETS 0x5401
973
974static const char *tioctls[] = {
975 "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW",
976 "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL",
977 "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI",
978 "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC",
979 "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX",
980 "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO",
981 "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK",
982 "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2",
983 "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK",
984 "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG",
985 "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL",
986 [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG",
987 "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS",
988 "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI",
989 "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE",
990};
991
992static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
844ae5b4 993#endif /* defined(__i386__) || defined(__x86_64__) */
78645cf3 994
453350dd
ACM		 995#define STRARRAY(arg, name, array) \
996 .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
997 .arg_parm = { [arg] = &strarray__##array, }
998
514f1c67
ACM		 999static struct syscall_fmt {
1000 const char *name;
aec1930b 1001 const char *alias;
01533e97 1002 size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
1f115cb7 1003 void *arg_parm[6];
514f1c67
ACM		 1004 bool errmsg;
1005 bool timeout;
04b34729 1006 bool hexret;
514f1c67 1007} syscall_fmts[] = {
51108999
ACM		 1008 { .name = "access", .errmsg = true,
1009 .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, },
aec1930b 1010 { .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
beccb2b5
ACM		 1011 { .name = "brk", .hexret = true,
1012 .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
4f8c1b74 1013 { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), },
75b757ca 1014 { .name = "close", .errmsg = true,
48000a1a 1015 .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, },
a14bb860 1016 { .name = "connect", .errmsg = true, },
75b757ca 1017 { .name = "dup", .errmsg = true,
48000a1a 1018 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1019 { .name = "dup2", .errmsg = true,
48000a1a 1020 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1021 { .name = "dup3", .errmsg = true,
48000a1a 1022 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd 1023 { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
49af9e93
ACM		 1024 { .name = "eventfd2", .errmsg = true,
1025 .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
75b757ca
ACM		 1026 { .name = "faccessat", .errmsg = true,
1027 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1028 { .name = "fadvise64", .errmsg = true,
48000a1a 1029 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1030 { .name = "fallocate", .errmsg = true,
48000a1a 1031 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1032 { .name = "fchdir", .errmsg = true,
48000a1a 1033 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1034 { .name = "fchmod", .errmsg = true,
48000a1a 1035 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1036 { .name = "fchmodat", .errmsg = true,
48000a1a 1037 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
75b757ca 1038 { .name = "fchown", .errmsg = true,
48000a1a 1039 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1040 { .name = "fchownat", .errmsg = true,
48000a1a 1041 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
75b757ca
ACM		 1042 { .name = "fcntl", .errmsg = true,
1043 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1044 [1] = SCA_STRARRAY, /* cmd */ },
1045 .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
1046 { .name = "fdatasync", .errmsg = true,
48000a1a 1047 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
5cea6ff2 1048 { .name = "flock", .errmsg = true,
75b757ca
ACM		 1049 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1050 [1] = SCA_FLOCK, /* cmd */ }, },
1051 { .name = "fsetxattr", .errmsg = true,
48000a1a 1052 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1053 { .name = "fstat", .errmsg = true, .alias = "newfstat",
48000a1a 1054 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1055 { .name = "fstatat", .errmsg = true, .alias = "newfstatat",
48000a1a 1056 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
75b757ca 1057 { .name = "fstatfs", .errmsg = true,
48000a1a 1058 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1059 { .name = "fsync", .errmsg = true,
48000a1a 1060 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1061 { .name = "ftruncate", .errmsg = true,
48000a1a 1062 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
f9da0b0c
ACM		 1063 { .name = "futex", .errmsg = true,
1064 .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
75b757ca 1065 { .name = "futimesat", .errmsg = true,
48000a1a 1066 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
75b757ca 1067 { .name = "getdents", .errmsg = true,
48000a1a 1068 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1069 { .name = "getdents64", .errmsg = true,
48000a1a 1070 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd
ACM		 1071 { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1072 { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
beccb2b5 1073 { .name = "ioctl", .errmsg = true,
48000a1a 1074 .arg_scnprintf = { [0] = SCA_FD, /* fd */
844ae5b4
ACM		 1075#if defined(__i386__) || defined(__x86_64__)
1076/*
1077 * FIXME: Make this available to all arches.
1078 */
78645cf3
ACM		 1079 [1] = SCA_STRHEXARRAY, /* cmd */
1080 [2] = SCA_HEX, /* arg */ },
1081 .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, },
844ae5b4
ACM		 1082#else
1083 [2] = SCA_HEX, /* arg */ }, },
1084#endif
8bad5b0a
ACM		 1085 { .name = "kill", .errmsg = true,
1086 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
75b757ca 1087 { .name = "linkat", .errmsg = true,
48000a1a 1088 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
75b757ca
ACM		 1089 { .name = "lseek", .errmsg = true,
1090 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1091 [2] = SCA_STRARRAY, /* whence */ },
1092 .arg_parm = { [2] = &strarray__whences, /* whence */ }, },
e5959683 1093 { .name = "lstat", .errmsg = true, .alias = "newlstat", },
9e9716d1
ACM		 1094 { .name = "madvise", .errmsg = true,
1095 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1096 [2] = SCA_MADV_BHV, /* behavior */ }, },
75b757ca 1097 { .name = "mkdirat", .errmsg = true,
48000a1a 1098 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
75b757ca 1099 { .name = "mknodat", .errmsg = true,
48000a1a 1100 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
3d903aa7
ACM		 1101 { .name = "mlock", .errmsg = true,
1102 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1103 { .name = "mlockall", .errmsg = true,
1104 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
beccb2b5 1105 { .name = "mmap", .hexret = true,
ae685380 1106 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
941557e0 1107 [2] = SCA_MMAP_PROT, /* prot */
73faab3a
NK		 1108 [3] = SCA_MMAP_FLAGS, /* flags */
1109 [4] = SCA_FD, /* fd */ }, },
beccb2b5 1110 { .name = "mprotect", .errmsg = true,
ae685380
ACM		 1111 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1112 [2] = SCA_MMAP_PROT, /* prot */ }, },
1113 { .name = "mremap", .hexret = true,
1114 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
86998dda 1115 [3] = SCA_MREMAP_FLAGS, /* flags */
ae685380 1116 [4] = SCA_HEX, /* new_addr */ }, },
3d903aa7
ACM		 1117 { .name = "munlock", .errmsg = true,
1118 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
beccb2b5
ACM		 1119 { .name = "munmap", .errmsg = true,
1120 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
75b757ca 1121 { .name = "name_to_handle_at", .errmsg = true,
48000a1a 1122 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
75b757ca 1123 { .name = "newfstatat", .errmsg = true,
48000a1a 1124 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
be65a89a
ACM		 1125 { .name = "open", .errmsg = true,
1126 .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, },
31cd3855 1127 { .name = "open_by_handle_at", .errmsg = true,
75b757ca
ACM		 1128 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1129 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
31cd3855 1130 { .name = "openat", .errmsg = true,
75b757ca
ACM		 1131 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1132 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
a1c2552d
ACM		 1133 { .name = "perf_event_open", .errmsg = true,
1134 .arg_scnprintf = { [1] = SCA_INT, /* pid */
1135 [2] = SCA_INT, /* cpu */
1136 [3] = SCA_FD, /* group_fd */
1137 [4] = SCA_PERF_FLAGS, /* flags */ }, },
46cce19b
ACM		 1138 { .name = "pipe2", .errmsg = true,
1139 .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, },
aec1930b
ACM		 1140 { .name = "poll", .errmsg = true, .timeout = true, },
1141 { .name = "ppoll", .errmsg = true, .timeout = true, },
75b757ca 1142 { .name = "pread", .errmsg = true, .alias = "pread64",
48000a1a 1143 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1144 { .name = "preadv", .errmsg = true, .alias = "pread",
48000a1a 1145 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd 1146 { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
75b757ca 1147 { .name = "pwrite", .errmsg = true, .alias = "pwrite64",
48000a1a 1148 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1149 { .name = "pwritev", .errmsg = true,
48000a1a 1150 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1151 { .name = "read", .errmsg = true,
48000a1a 1152 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1153 { .name = "readlinkat", .errmsg = true,
48000a1a 1154 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
75b757ca 1155 { .name = "readv", .errmsg = true,
48000a1a 1156 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
b2cc99fd
ACM		 1157 { .name = "recvfrom", .errmsg = true,
1158 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1159 { .name = "recvmmsg", .errmsg = true,
1160 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1161 { .name = "recvmsg", .errmsg = true,
1162 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
75b757ca 1163 { .name = "renameat", .errmsg = true,
48000a1a 1164 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
8bad5b0a
ACM		 1165 { .name = "rt_sigaction", .errmsg = true,
1166 .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
453350dd 1167 { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), },
8bad5b0a
ACM		 1168 { .name = "rt_sigqueueinfo", .errmsg = true,
1169 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
1170 { .name = "rt_tgsigqueueinfo", .errmsg = true,
1171 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
aec1930b 1172 { .name = "select", .errmsg = true, .timeout = true, },
b2cc99fd
ACM		 1173 { .name = "sendmmsg", .errmsg = true,
1174 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
1175 { .name = "sendmsg", .errmsg = true,
1176 .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
1177 { .name = "sendto", .errmsg = true,
1178 .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
453350dd
ACM		 1179 { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1180 { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
75b757ca 1181 { .name = "shutdown", .errmsg = true,
48000a1a 1182 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
e10bce81 1183 { .name = "socket", .errmsg = true,
a28b24b2
ACM		 1184 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1185 [1] = SCA_SK_TYPE, /* type */ },
07120aa5
ACM		 1186 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
1187 { .name = "socketpair", .errmsg = true,
1188 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1189 [1] = SCA_SK_TYPE, /* type */ },
e10bce81 1190 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
aec1930b 1191 { .name = "stat", .errmsg = true, .alias = "newstat", },
75b757ca 1192 { .name = "symlinkat", .errmsg = true,
48000a1a 1193 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
8bad5b0a
ACM		 1194 { .name = "tgkill", .errmsg = true,
1195 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
1196 { .name = "tkill", .errmsg = true,
1197 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
e5959683 1198 { .name = "uname", .errmsg = true, .alias = "newuname", },
75b757ca
ACM		 1199 { .name = "unlinkat", .errmsg = true,
1200 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
1201 { .name = "utimensat", .errmsg = true,
1202 .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, },
1203 { .name = "write", .errmsg = true,
48000a1a 1204 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1205 { .name = "writev", .errmsg = true,
48000a1a 1206 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
514f1c67
ACM		 1207};
1208
1209static int syscall_fmt__cmp(const void *name, const void *fmtp)
1210{
1211 const struct syscall_fmt *fmt = fmtp;
1212 return strcmp(name, fmt->name);
1213}
1214
1215static struct syscall_fmt *syscall_fmt__find(const char *name)
1216{
1217 const int nmemb = ARRAY_SIZE(syscall_fmts);
1218 return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
1219}
1220
1221struct syscall {
1222 struct event_format *tp_format;
f208bd8d
ACM		 1223 int nr_args;
1224 struct format_field *args;
514f1c67 1225 const char *name;
2ae3a312 1226 bool filtered;
5089f20e 1227 bool is_exit;
514f1c67 1228 struct syscall_fmt *fmt;
01533e97 1229 size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
1f115cb7 1230 void **arg_parm;
514f1c67
ACM		 1231};
1232
60c907ab
ACM		 1233static size_t fprintf_duration(unsigned long t, FILE *fp)
1234{
1235 double duration = (double)t / NSEC_PER_MSEC;
1236 size_t printed = fprintf(fp, "(");
1237
1238 if (duration >= 1.0)
1239 printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration);
1240 else if (duration >= 0.01)
1241 printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration);
1242 else
1243 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration);
c24ff998 1244 return printed + fprintf(fp, "): ");
60c907ab
ACM		 1245}
1246
752fde44
ACM		 1247struct thread_trace {
1248 u64 entry_time;
1249 u64 exit_time;
1250 bool entry_pending;
efd5745e 1251 unsigned long nr_events;
a2ea67d7 1252 unsigned long pfmaj, pfmin;
752fde44 1253 char *entry_str;
1302d88e 1254 double runtime_ms;
75b757ca
ACM		 1255 struct {
1256 int max;
1257 char **table;
1258 } paths;
bf2575c1
DA		 1259
1260 struct intlist *syscall_stats;
752fde44
ACM		 1261};
1262
1263static struct thread_trace *thread_trace__new(void)
1264{
75b757ca
ACM		 1265 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace));
1266
1267 if (ttrace)
1268 ttrace->paths.max = -1;
1269
bf2575c1
DA		 1270 ttrace->syscall_stats = intlist__new(NULL);
1271
75b757ca 1272 return ttrace;
752fde44
ACM		 1273}
1274
c24ff998 1275static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
752fde44 1276{
efd5745e
ACM		 1277 struct thread_trace *ttrace;
1278
752fde44
ACM		 1279 if (thread == NULL)
1280 goto fail;
1281
89dceb22
NK		 1282 if (thread__priv(thread) == NULL)
1283 thread__set_priv(thread, thread_trace__new());
48000a1a 1284
89dceb22 1285 if (thread__priv(thread) == NULL)
752fde44
ACM		 1286 goto fail;
1287
89dceb22 1288 ttrace = thread__priv(thread);
efd5745e
ACM		 1289 ++ttrace->nr_events;
1290
1291 return ttrace;
752fde44 1292fail:
c24ff998 1293 color_fprintf(fp, PERF_COLOR_RED,
752fde44
ACM		 1294 "WARNING: not enough memory, dropping samples!\n");
1295 return NULL;
1296}
1297
598d02c5
SF		 1298#define TRACE_PFMAJ (1 << 0)
1299#define TRACE_PFMIN (1 << 1)
1300
514f1c67 1301struct trace {
c24ff998 1302 struct perf_tool tool;
c522739d
ACM		 1303 struct {
1304 int machine;
1305 int open_id;
1306 } audit;
514f1c67
ACM		 1307 struct {
1308 int max;
1309 struct syscall *table;
1310 } syscalls;
b4006796 1311 struct record_opts opts;
14a052df 1312 struct perf_evlist *evlist;
8fb598e5 1313 struct machine *host;
e596663e 1314 struct thread *current;
752fde44 1315 u64 base_time;
c24ff998 1316 FILE *output;
efd5745e 1317 unsigned long nr_events;
b059efdf 1318 struct strlist *ev_qualifier;
c522739d 1319 const char *last_vfs_getname;
bdc89661
DA		 1320 struct intlist *tid_list;
1321 struct intlist *pid_list;
f078c385
ACM		 1322 struct {
1323 size_t nr;
1324 pid_t *entries;
1325 } filter_pids;
98eafce6
ACM		 1326 double duration_filter;
1327 double runtime_ms;
1328 struct {
1329 u64 vfs_getname,
1330 proc_getname;
1331 } stats;
1332 bool not_ev_qualifier;
1333 bool live;
1334 bool full_time;
1302d88e 1335 bool sched;
752fde44 1336 bool multiple_threads;
bf2575c1 1337 bool summary;
fd2eabaf 1338 bool summary_only;
50c95cbd 1339 bool show_comm;
c522739d 1340 bool show_tool_stats;
e281a960 1341 bool trace_syscalls;
e366a6d8 1342 bool force;
598d02c5 1343 int trace_pgfaults;
514f1c67
ACM		 1344};
1345
97119f37 1346static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
75b757ca 1347{
89dceb22 1348 struct thread_trace *ttrace = thread__priv(thread);
75b757ca
ACM		 1349
1350 if (fd > ttrace->paths.max) {
1351 char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
1352
1353 if (npath == NULL)
1354 return -1;
1355
1356 if (ttrace->paths.max != -1) {
1357 memset(npath + ttrace->paths.max + 1, 0,
1358 (fd - ttrace->paths.max) * sizeof(char *));
1359 } else {
1360 memset(npath, 0, (fd + 1) * sizeof(char *));
1361 }
1362
1363 ttrace->paths.table = npath;
1364 ttrace->paths.max = fd;
1365 }
1366
1367 ttrace->paths.table[fd] = strdup(pathname);
1368
1369 return ttrace->paths.table[fd] != NULL ? 0 : -1;
1370}
1371
97119f37
ACM		 1372static int thread__read_fd_path(struct thread *thread, int fd)
1373{
1374 char linkname[PATH_MAX], pathname[PATH_MAX];
1375 struct stat st;
1376 int ret;
1377
1378 if (thread->pid_ == thread->tid) {
1379 scnprintf(linkname, sizeof(linkname),
1380 "/proc/%d/fd/%d", thread->pid_, fd);
1381 } else {
1382 scnprintf(linkname, sizeof(linkname),
1383 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
1384 }
1385
1386 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
1387 return -1;
1388
1389 ret = readlink(linkname, pathname, sizeof(pathname));
1390
1391 if (ret < 0 || ret > st.st_size)
1392 return -1;
1393
1394 pathname[ret] = '\0';
1395 return trace__set_fd_pathname(thread, fd, pathname);
1396}
1397
c522739d
ACM		 1398static const char *thread__fd_path(struct thread *thread, int fd,
1399 struct trace *trace)
75b757ca 1400{
89dceb22 1401 struct thread_trace *ttrace = thread__priv(thread);
75b757ca
ACM		 1402
1403 if (ttrace == NULL)
1404 return NULL;
1405
1406 if (fd < 0)
1407 return NULL;
1408
cdcd1e6b 1409 if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) {
c522739d
ACM		 1410 if (!trace->live)
1411 return NULL;
1412 ++trace->stats.proc_getname;
cdcd1e6b 1413 if (thread__read_fd_path(thread, fd))
c522739d
ACM		 1414 return NULL;
1415 }
75b757ca
ACM		 1416
1417 return ttrace->paths.table[fd];
1418}
1419
1420static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
1421 struct syscall_arg *arg)
1422{
1423 int fd = arg->val;
1424 size_t printed = scnprintf(bf, size, "%d", fd);
c522739d 1425 const char *path = thread__fd_path(arg->thread, fd, arg->trace);
75b757ca
ACM		 1426
1427 if (path)
1428 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1429
1430 return printed;
1431}
1432
1433static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
1434 struct syscall_arg *arg)
1435{
1436 int fd = arg->val;
1437 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
89dceb22 1438 struct thread_trace *ttrace = thread__priv(arg->thread);
75b757ca 1439
04662523
ACM		 1440 if (ttrace && fd >= 0 && fd <= ttrace->paths.max)
1441 zfree(&ttrace->paths.table[fd]);
75b757ca
ACM		 1442
1443 return printed;
1444}
1445
ae9ed035
ACM		 1446static bool trace__filter_duration(struct trace *trace, double t)
1447{
1448 return t < (trace->duration_filter * NSEC_PER_MSEC);
1449}
1450
752fde44
ACM		 1451static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
1452{
1453 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC;
1454
60c907ab 1455 return fprintf(fp, "%10.3f ", ts);
752fde44
ACM		 1456}
1457
f15eb531 1458static bool done = false;
ba209f85 1459static bool interrupted = false;
f15eb531 1460
ba209f85 1461static void sig_handler(int sig)
f15eb531
NK		 1462{
1463 done = true;
ba209f85 1464 interrupted = sig == SIGINT;
f15eb531
NK		 1465}
1466
752fde44 1467static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
60c907ab 1468 u64 duration, u64 tstamp, FILE *fp)
752fde44
ACM		 1469{
1470 size_t printed = trace__fprintf_tstamp(trace, tstamp, fp);
60c907ab 1471 printed += fprintf_duration(duration, fp);
752fde44 1472
50c95cbd
ACM		 1473 if (trace->multiple_threads) {
1474 if (trace->show_comm)
1902efe7 1475 printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
38051234 1476 printed += fprintf(fp, "%d ", thread->tid);
50c95cbd 1477 }
752fde44
ACM		 1478
1479 return printed;
1480}
1481
c24ff998 1482static int trace__process_event(struct trace *trace, struct machine *machine,
162f0bef 1483 union perf_event *event, struct perf_sample *sample)
752fde44
ACM		 1484{
1485 int ret = 0;
1486
1487 switch (event->header.type) {
1488 case PERF_RECORD_LOST:
c24ff998 1489 color_fprintf(trace->output, PERF_COLOR_RED,
752fde44 1490 "LOST %" PRIu64 " events!\n", event->lost.lost);
162f0bef 1491 ret = machine__process_lost_event(machine, event, sample);
752fde44 1492 default:
162f0bef 1493 ret = machine__process_event(machine, event, sample);
752fde44
ACM		 1494 break;
1495 }
1496
1497 return ret;
1498}
1499
c24ff998 1500static int trace__tool_process(struct perf_tool *tool,
752fde44 1501 union perf_event *event,
162f0bef 1502 struct perf_sample *sample,
752fde44
ACM		 1503 struct machine *machine)
1504{
c24ff998 1505 struct trace *trace = container_of(tool, struct trace, tool);
162f0bef 1506 return trace__process_event(trace, machine, event, sample);
752fde44
ACM		 1507}
1508
1509static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
1510{
0a7e6d1b 1511 int err = symbol__init(NULL);
752fde44
ACM		 1512
1513 if (err)
1514 return err;
1515
8fb598e5
DA		 1516 trace->host = machine__new_host();
1517 if (trace->host == NULL)
1518 return -ENOMEM;
752fde44 1519
a33fbd56 1520 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
9d9cad76
KL		 1521 evlist->threads, trace__tool_process, false,
1522 trace->opts.proc_map_timeout);
752fde44
ACM		 1523 if (err)
1524 symbol__exit();
1525
1526 return err;
1527}
1528
13d4ff3e
ACM		 1529static int syscall__set_arg_fmts(struct syscall *sc)
1530{
1531 struct format_field *field;
1532 int idx = 0;
1533
f208bd8d 1534 sc->arg_scnprintf = calloc(sc->nr_args, sizeof(void *));
13d4ff3e
ACM		 1535 if (sc->arg_scnprintf == NULL)
1536 return -1;
1537
1f115cb7
ACM		 1538 if (sc->fmt)
1539 sc->arg_parm = sc->fmt->arg_parm;
1540
f208bd8d 1541 for (field = sc->args; field; field = field->next) {
beccb2b5
ACM		 1542 if (sc->fmt && sc->fmt->arg_scnprintf[idx])
1543 sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx];
1544 else if (field->flags & FIELD_IS_POINTER)
13d4ff3e
ACM		 1545 sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex;
1546 ++idx;
1547 }
1548
1549 return 0;
1550}
1551
514f1c67
ACM		 1552static int trace__read_syscall_info(struct trace *trace, int id)
1553{
1554 char tp_name[128];
1555 struct syscall *sc;
c522739d 1556 const char *name = audit_syscall_to_name(id, trace->audit.machine);
3a531260
ACM		 1557
1558 if (name == NULL)
1559 return -1;
514f1c67
ACM		 1560
1561 if (id > trace->syscalls.max) {
1562 struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc));
1563
1564 if (nsyscalls == NULL)
1565 return -1;
1566
1567 if (trace->syscalls.max != -1) {
1568 memset(nsyscalls + trace->syscalls.max + 1, 0,
1569 (id - trace->syscalls.max) * sizeof(*sc));
1570 } else {
1571 memset(nsyscalls, 0, (id + 1) * sizeof(*sc));
1572 }
1573
1574 trace->syscalls.table = nsyscalls;
1575 trace->syscalls.max = id;
1576 }
1577
1578 sc = trace->syscalls.table + id;
3a531260 1579 sc->name = name;
2ae3a312 1580
b059efdf
ACM		 1581 if (trace->ev_qualifier) {
1582 bool in = strlist__find(trace->ev_qualifier, name) != NULL;
1583
1584 if (!(in ^ trace->not_ev_qualifier)) {
1585 sc->filtered = true;
1586 /*
1587 * No need to do read tracepoint information since this will be
1588 * filtered out.
1589 */
1590 return 0;
1591 }
2ae3a312
ACM		 1592 }
1593
3a531260 1594 sc->fmt = syscall_fmt__find(sc->name);
514f1c67 1595
aec1930b 1596 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
97978b3e 1597 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
aec1930b
ACM		 1598
1599 if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) {
1600 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
97978b3e 1601 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
aec1930b 1602 }
514f1c67 1603
13d4ff3e
ACM		 1604 if (sc->tp_format == NULL)
1605 return -1;
1606
f208bd8d
ACM		 1607 sc->args = sc->tp_format->format.fields;
1608 sc->nr_args = sc->tp_format->format.nr_fields;
1609 /* drop nr field - not relevant here; does not exist on older kernels */
1610 if (sc->args && strcmp(sc->args->name, "nr") == 0) {
1611 sc->args = sc->args->next;
1612 --sc->nr_args;
1613 }
1614
5089f20e
ACM		 1615 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit");
1616
13d4ff3e 1617 return syscall__set_arg_fmts(sc);
514f1c67
ACM		 1618}
1619
d0cc439b
ACM		 1620static int trace__validate_ev_qualifier(struct trace *trace)
1621{
1622 int err = 0;
1623 struct str_node *pos;
1624
1625 strlist__for_each(pos, trace->ev_qualifier) {
1626 const char *sc = pos->s;
1627
1628 if (audit_name_to_syscall(sc, trace->audit.machine) < 0) {
1629 if (err == 0) {
1630 fputs("Error:\tInvalid syscall ", trace->output);
1631 err = -EINVAL;
1632 } else {
1633 fputs(", ", trace->output);
1634 }
1635
1636 fputs(sc, trace->output);
1637 }
1638 }
1639
1640 if (err < 0) {
1641 fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
1642 "\nHint:\tand: 'man syscalls'\n", trace->output);
1643 }
1644
1645 return err;
1646}
1647
55d43bca
DA		 1648/*
1649 * args is to be interpreted as a series of longs but we need to handle
1650 * 8-byte unaligned accesses. args points to raw_data within the event
1651 * and raw_data is guaranteed to be 8-byte unaligned because it is
1652 * preceded by raw_size which is a u32. So we need to copy args to a temp
1653 * variable to read it. Most notably this avoids extended load instructions
1654 * on unaligned addresses
1655 */
1656
752fde44 1657static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
55d43bca 1658 unsigned char *args, struct trace *trace,
75b757ca 1659 struct thread *thread)
514f1c67 1660{
514f1c67 1661 size_t printed = 0;
55d43bca
DA		 1662 unsigned char *p;
1663 unsigned long val;
514f1c67 1664
f208bd8d 1665 if (sc->args != NULL) {
514f1c67 1666 struct format_field *field;
01533e97
ACM		 1667 u8 bit = 1;
1668 struct syscall_arg arg = {
75b757ca
ACM		 1669 .idx = 0,
1670 .mask = 0,
1671 .trace = trace,
1672 .thread = thread,
01533e97 1673 };
6e7eeb51 1674
f208bd8d 1675 for (field = sc->args; field;
01533e97
ACM		 1676 field = field->next, ++arg.idx, bit <<= 1) {
1677 if (arg.mask & bit)
6e7eeb51 1678 continue;
55d43bca
DA		 1679
1680 /* special care for unaligned accesses */
1681 p = args + sizeof(unsigned long) * arg.idx;
1682 memcpy(&val, p, sizeof(val));
1683
4aa58232
ACM		 1684 /*
1685 * Suppress this argument if its value is zero and
1686 * and we don't have a string associated in an
1687 * strarray for it.
1688 */
55d43bca 1689 if (val == 0 &&
4aa58232
ACM		 1690 !(sc->arg_scnprintf &&
1691 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
1692 sc->arg_parm[arg.idx]))
22ae5cf1
ACM		 1693 continue;
1694
752fde44 1695 printed += scnprintf(bf + printed, size - printed,
13d4ff3e 1696 "%s%s: ", printed ? ", " : "", field->name);
01533e97 1697 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
55d43bca 1698 arg.val = val;
1f115cb7
ACM		 1699 if (sc->arg_parm)
1700 arg.parm = sc->arg_parm[arg.idx];
01533e97
ACM		 1701 printed += sc->arg_scnprintf[arg.idx](bf + printed,
1702 size - printed, &arg);
6e7eeb51 1703 } else {
13d4ff3e 1704 printed += scnprintf(bf + printed, size - printed,
55d43bca 1705 "%ld", val);
6e7eeb51 1706 }
514f1c67
ACM		 1707 }
1708 } else {
01533e97
ACM		 1709 int i = 0;
1710
514f1c67 1711 while (i < 6) {
55d43bca
DA		 1712 /* special care for unaligned accesses */
1713 p = args + sizeof(unsigned long) * i;
1714 memcpy(&val, p, sizeof(val));
752fde44
ACM		 1715 printed += scnprintf(bf + printed, size - printed,
1716 "%sarg%d: %ld",
55d43bca 1717 printed ? ", " : "", i, val);
514f1c67
ACM		 1718 ++i;
1719 }
1720 }
1721
1722 return printed;
1723}
1724
ba3d7dee 1725typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1726 union perf_event *event,
ba3d7dee
ACM		 1727 struct perf_sample *sample);
1728
1729static struct syscall *trace__syscall_info(struct trace *trace,
bf2575c1 1730 struct perf_evsel *evsel, int id)
ba3d7dee 1731{
ba3d7dee
ACM		 1732
1733 if (id < 0) {
adaa18bf
ACM		 1734
1735 /*
1736 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
1737 * before that, leaving at a higher verbosity level till that is
1738 * explained. Reproduced with plain ftrace with:
1739 *
1740 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
1741 * grep "NR -1 " /t/trace_pipe
1742 *
1743 * After generating some load on the machine.
1744 */
1745 if (verbose > 1) {
1746 static u64 n;
1747 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
1748 id, perf_evsel__name(evsel), ++n);
1749 }
ba3d7dee
ACM		 1750 return NULL;
1751 }
1752
1753 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) &&
1754 trace__read_syscall_info(trace, id))
1755 goto out_cant_read;
1756
1757 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL))
1758 goto out_cant_read;
1759
1760 return &trace->syscalls.table[id];
1761
1762out_cant_read:
7c304ee0
ACM		 1763 if (verbose) {
1764 fprintf(trace->output, "Problems reading syscall %d", id);
1765 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
1766 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
1767 fputs(" information\n", trace->output);
1768 }
ba3d7dee
ACM		 1769 return NULL;
1770}
1771
bf2575c1
DA		 1772static void thread__update_stats(struct thread_trace *ttrace,
1773 int id, struct perf_sample *sample)
1774{
1775 struct int_node *inode;
1776 struct stats *stats;
1777 u64 duration = 0;
1778
1779 inode = intlist__findnew(ttrace->syscall_stats, id);
1780 if (inode == NULL)
1781 return;
1782
1783 stats = inode->priv;
1784 if (stats == NULL) {
1785 stats = malloc(sizeof(struct stats));
1786 if (stats == NULL)
1787 return;
1788 init_stats(stats);
1789 inode->priv = stats;
1790 }
1791
1792 if (ttrace->entry_time && sample->time > ttrace->entry_time)
1793 duration = sample->time - ttrace->entry_time;
1794
1795 update_stats(stats, duration);
1796}
1797
e596663e
ACM		 1798static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample)
1799{
1800 struct thread_trace *ttrace;
1801 u64 duration;
1802 size_t printed;
1803
1804 if (trace->current == NULL)
1805 return 0;
1806
1807 ttrace = thread__priv(trace->current);
1808
1809 if (!ttrace->entry_pending)
1810 return 0;
1811
1812 duration = sample->time - ttrace->entry_time;
1813
1814 printed = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output);
1815 printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str);
1816 ttrace->entry_pending = false;
1817
1818 return printed;
1819}
1820
ba3d7dee 1821static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1822 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 1823 struct perf_sample *sample)
1824{
752fde44 1825 char *msg;
ba3d7dee 1826 void *args;
752fde44 1827 size_t printed = 0;
2ae3a312 1828 struct thread *thread;
b91fc39f 1829 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 1830 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 1831 struct thread_trace *ttrace;
1832
1833 if (sc == NULL)
1834 return -1;
ba3d7dee 1835
2ae3a312
ACM		 1836 if (sc->filtered)
1837 return 0;
1838
8fb598e5 1839 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 1840 ttrace = thread__trace(thread, trace->output);
2ae3a312 1841 if (ttrace == NULL)
b91fc39f 1842 goto out_put;
ba3d7dee 1843
77170988 1844 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
752fde44
ACM		 1845
1846 if (ttrace->entry_str == NULL) {
1847 ttrace->entry_str = malloc(1024);
1848 if (!ttrace->entry_str)
b91fc39f 1849 goto out_put;
752fde44
ACM		 1850 }
1851
13f22a2d 1852 if (!trace->summary_only)
6ebad5c1 1853 trace__printf_interrupted_entry(trace, sample);
e596663e 1854
752fde44
ACM		 1855 ttrace->entry_time = sample->time;
1856 msg = ttrace->entry_str;
1857 printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
1858
75b757ca
ACM		 1859 printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
1860 args, trace, thread);
752fde44 1861
5089f20e 1862 if (sc->is_exit) {
fd2eabaf 1863 if (!trace->duration_filter && !trace->summary_only) {
c24ff998
ACM		 1864 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
1865 fprintf(trace->output, "%-70s\n", ttrace->entry_str);
ae9ed035 1866 }
752fde44
ACM		 1867 } else
1868 ttrace->entry_pending = true;
ba3d7dee 1869
f3b623b8
ACM		 1870 if (trace->current != thread) {
1871 thread__put(trace->current);
1872 trace->current = thread__get(thread);
1873 }
b91fc39f
ACM		 1874 err = 0;
1875out_put:
1876 thread__put(thread);
1877 return err;
ba3d7dee
ACM		 1878}
1879
1880static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1881 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 1882 struct perf_sample *sample)
1883{
2c82c3ad 1884 long ret;
60c907ab 1885 u64 duration = 0;
2ae3a312 1886 struct thread *thread;
b91fc39f 1887 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 1888 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 1889 struct thread_trace *ttrace;
1890
1891 if (sc == NULL)
1892 return -1;
ba3d7dee 1893
2ae3a312
ACM		 1894 if (sc->filtered)
1895 return 0;
1896
8fb598e5 1897 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 1898 ttrace = thread__trace(thread, trace->output);
2ae3a312 1899 if (ttrace == NULL)
b91fc39f 1900 goto out_put;
ba3d7dee 1901
bf2575c1
DA		 1902 if (trace->summary)
1903 thread__update_stats(ttrace, id, sample);
1904
77170988 1905 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
ba3d7dee 1906
c522739d
ACM		 1907 if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
1908 trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
1909 trace->last_vfs_getname = NULL;
1910 ++trace->stats.vfs_getname;
1911 }
1912
752fde44
ACM		 1913 ttrace->exit_time = sample->time;
1914
ae9ed035 1915 if (ttrace->entry_time) {
60c907ab 1916 duration = sample->time - ttrace->entry_time;
ae9ed035
ACM		 1917 if (trace__filter_duration(trace, duration))
1918 goto out;
1919 } else if (trace->duration_filter)
1920 goto out;
60c907ab 1921
fd2eabaf
DA		 1922 if (trace->summary_only)
1923 goto out;
1924
c24ff998 1925 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
752fde44
ACM		 1926
1927 if (ttrace->entry_pending) {
c24ff998 1928 fprintf(trace->output, "%-70s", ttrace->entry_str);
752fde44 1929 } else {
c24ff998
ACM		 1930 fprintf(trace->output, " ... [");
1931 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
1932 fprintf(trace->output, "]: %s()", sc->name);
752fde44
ACM		 1933 }
1934
da3c9a44
ACM		 1935 if (sc->fmt == NULL) {
1936signed_print:
2c82c3ad 1937 fprintf(trace->output, ") = %ld", ret);
da3c9a44 1938 } else if (ret < 0 && sc->fmt->errmsg) {
942a91ed 1939 char bf[STRERR_BUFSIZE];
ba3d7dee
ACM		 1940 const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
1941 *e = audit_errno_to_name(-ret);
1942
c24ff998 1943 fprintf(trace->output, ") = -1 %s %s", e, emsg);
da3c9a44 1944 } else if (ret == 0 && sc->fmt->timeout)
c24ff998 1945 fprintf(trace->output, ") = 0 Timeout");
04b34729 1946 else if (sc->fmt->hexret)
2c82c3ad 1947 fprintf(trace->output, ") = %#lx", ret);
ba3d7dee 1948 else
da3c9a44 1949 goto signed_print;
ba3d7dee 1950
c24ff998 1951 fputc('\n', trace->output);
ae9ed035 1952out:
752fde44 1953 ttrace->entry_pending = false;
b91fc39f
ACM		 1954 err = 0;
1955out_put:
1956 thread__put(thread);
1957 return err;
ba3d7dee
ACM		 1958}
1959
c522739d 1960static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1961 union perf_event *event __maybe_unused,
c522739d
ACM		 1962 struct perf_sample *sample)
1963{
1964 trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
1965 return 0;
1966}
1967
1302d88e 1968static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1969 union perf_event *event __maybe_unused,
1302d88e
ACM		 1970 struct perf_sample *sample)
1971{
1972 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
1973 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
8fb598e5 1974 struct thread *thread = machine__findnew_thread(trace->host,
314add6b
AH		 1975 sample->pid,
1976 sample->tid);
c24ff998 1977 struct thread_trace *ttrace = thread__trace(thread, trace->output);
1302d88e
ACM		 1978
1979 if (ttrace == NULL)
1980 goto out_dump;
1981
1982 ttrace->runtime_ms += runtime_ms;
1983 trace->runtime_ms += runtime_ms;
b91fc39f 1984 thread__put(thread);
1302d88e
ACM		 1985 return 0;
1986
1987out_dump:
c24ff998 1988 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
1302d88e
ACM		 1989 evsel->name,
1990 perf_evsel__strval(evsel, sample, "comm"),
1991 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
1992 runtime,
1993 perf_evsel__intval(evsel, sample, "vruntime"));
b91fc39f 1994 thread__put(thread);
1302d88e
ACM		 1995 return 0;
1996}
1997
14a052df
ACM		 1998static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
1999 union perf_event *event __maybe_unused,
2000 struct perf_sample *sample)
2001{
2002 trace__printf_interrupted_entry(trace, sample);
2003 trace__fprintf_tstamp(trace, sample->time, trace->output);
0808921a
ACM		 2004
2005 if (trace->trace_syscalls)
2006 fprintf(trace->output, "( ): ");
2007
2008 fprintf(trace->output, "%s:", evsel->name);
14a052df
ACM		 2009
2010 if (evsel->tp_format) {
2011 event_format__fprintf(evsel->tp_format, sample->cpu,
2012 sample->raw_data, sample->raw_size,
2013 trace->output);
2014 }
2015
2016 fprintf(trace->output, ")\n");
2017 return 0;
2018}
2019
598d02c5
SF		 2020static void print_location(FILE *f, struct perf_sample *sample,
2021 struct addr_location *al,
2022 bool print_dso, bool print_sym)
2023{
2024
2025 if ((verbose || print_dso) && al->map)
2026 fprintf(f, "%s@", al->map->dso->long_name);
2027
2028 if ((verbose || print_sym) && al->sym)
4414a3c5 2029 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
598d02c5
SF		 2030 al->addr - al->sym->start);
2031 else if (al->map)
4414a3c5 2032 fprintf(f, "0x%" PRIx64, al->addr);
598d02c5 2033 else
4414a3c5 2034 fprintf(f, "0x%" PRIx64, sample->addr);
598d02c5
SF		 2035}
2036
2037static int trace__pgfault(struct trace *trace,
2038 struct perf_evsel *evsel,
2039 union perf_event *event,
2040 struct perf_sample *sample)
2041{
2042 struct thread *thread;
2043 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
2044 struct addr_location al;
2045 char map_type = 'd';
a2ea67d7 2046 struct thread_trace *ttrace;
b91fc39f 2047 int err = -1;
598d02c5
SF		 2048
2049 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
a2ea67d7
SF		 2050 ttrace = thread__trace(thread, trace->output);
2051 if (ttrace == NULL)
b91fc39f 2052 goto out_put;
a2ea67d7
SF		 2053
2054 if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
2055 ttrace->pfmaj++;
2056 else
2057 ttrace->pfmin++;
2058
2059 if (trace->summary_only)
b91fc39f 2060 goto out;
598d02c5 2061
bb871a9c 2062 thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
598d02c5
SF		 2063 sample->ip, &al);
2064
2065 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
2066
2067 fprintf(trace->output, "%sfault [",
2068 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
2069 "maj" : "min");
2070
2071 print_location(trace->output, sample, &al, false, true);
2072
2073 fprintf(trace->output, "] => ");
2074
bb871a9c 2075 thread__find_addr_location(thread, cpumode, MAP__VARIABLE,
598d02c5
SF		 2076 sample->addr, &al);
2077
2078 if (!al.map) {
bb871a9c 2079 thread__find_addr_location(thread, cpumode,
598d02c5
SF		 2080 MAP__FUNCTION, sample->addr, &al);
2081
2082 if (al.map)
2083 map_type = 'x';
2084 else
2085 map_type = '?';
2086 }
2087
2088 print_location(trace->output, sample, &al, true, false);
2089
2090 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
b91fc39f
ACM		 2091out:
2092 err = 0;
2093out_put:
2094 thread__put(thread);
2095 return err;
598d02c5
SF		 2096}
2097
bdc89661
DA		 2098static bool skip_sample(struct trace *trace, struct perf_sample *sample)
2099{
2100 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
2101 (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
2102 return false;
2103
2104 if (trace->pid_list || trace->tid_list)
2105 return true;
2106
2107 return false;
2108}
2109
6810fc91 2110static int trace__process_sample(struct perf_tool *tool,
0c82adcf 2111 union perf_event *event,
6810fc91
DA		 2112 struct perf_sample *sample,
2113 struct perf_evsel *evsel,
2114 struct machine *machine __maybe_unused)
2115{
2116 struct trace *trace = container_of(tool, struct trace, tool);
2117 int err = 0;
2118
744a9719 2119 tracepoint_handler handler = evsel->handler;
6810fc91 2120
bdc89661
DA		 2121 if (skip_sample(trace, sample))
2122 return 0;
2123
4bb09192 2124 if (!trace->full_time && trace->base_time == 0)
6810fc91
DA		 2125 trace->base_time = sample->time;
2126
3160565f
DA		 2127 if (handler) {
2128 ++trace->nr_events;
0c82adcf 2129 handler(trace, evsel, event, sample);
3160565f 2130 }
6810fc91
DA		 2131
2132 return err;
2133}
2134
bdc89661
DA		 2135static int parse_target_str(struct trace *trace)
2136{
2137 if (trace->opts.target.pid) {
2138 trace->pid_list = intlist__new(trace->opts.target.pid);
2139 if (trace->pid_list == NULL) {
2140 pr_err("Error parsing process id string\n");
2141 return -EINVAL;
2142 }
2143 }
2144
2145 if (trace->opts.target.tid) {
2146 trace->tid_list = intlist__new(trace->opts.target.tid);
2147 if (trace->tid_list == NULL) {
2148 pr_err("Error parsing thread id string\n");
2149 return -EINVAL;
2150 }
2151 }
2152
2153 return 0;
2154}
2155
1e28fe0a 2156static int trace__record(struct trace *trace, int argc, const char **argv)
5e2485b1
DA		 2157{
2158 unsigned int rec_argc, i, j;
2159 const char **rec_argv;
2160 const char * const record_args[] = {
2161 "record",
2162 "-R",
2163 "-m", "1024",
2164 "-c", "1",
5e2485b1
DA		 2165 };
2166
1e28fe0a
SF		 2167 const char * const sc_args[] = { "-e", };
2168 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
2169 const char * const majpf_args[] = { "-e", "major-faults" };
2170 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
2171 const char * const minpf_args[] = { "-e", "minor-faults" };
2172 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
2173
9aca7f17 2174 /* +1 is for the event string below */
1e28fe0a
SF		 2175 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 +
2176 majpf_args_nr + minpf_args_nr + argc;
5e2485b1
DA		 2177 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2178
2179 if (rec_argv == NULL)
2180 return -ENOMEM;
2181
1e28fe0a 2182 j = 0;
5e2485b1 2183 for (i = 0; i < ARRAY_SIZE(record_args); i++)
1e28fe0a
SF		 2184 rec_argv[j++] = record_args[i];
2185
e281a960
SF		 2186 if (trace->trace_syscalls) {
2187 for (i = 0; i < sc_args_nr; i++)
2188 rec_argv[j++] = sc_args[i];
2189
2190 /* event string may be different for older kernels - e.g., RHEL6 */
2191 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
2192 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
2193 else if (is_valid_tracepoint("syscalls:sys_enter"))
2194 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
2195 else {
2196 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
2197 return -1;
2198 }
9aca7f17 2199 }
9aca7f17 2200
1e28fe0a
SF		 2201 if (trace->trace_pgfaults & TRACE_PFMAJ)
2202 for (i = 0; i < majpf_args_nr; i++)
2203 rec_argv[j++] = majpf_args[i];
2204
2205 if (trace->trace_pgfaults & TRACE_PFMIN)
2206 for (i = 0; i < minpf_args_nr; i++)
2207 rec_argv[j++] = minpf_args[i];
2208
2209 for (i = 0; i < (unsigned int)argc; i++)
2210 rec_argv[j++] = argv[i];
5e2485b1 2211
1e28fe0a 2212 return cmd_record(j, rec_argv, NULL);
5e2485b1
DA		 2213}
2214
bf2575c1
DA		 2215static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
2216
c522739d
ACM		 2217static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
2218{
ef503831 2219 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
c522739d
ACM		 2220 if (evsel == NULL)
2221 return;
2222
2223 if (perf_evsel__field(evsel, "pathname") == NULL) {
2224 perf_evsel__delete(evsel);
2225 return;
2226 }
2227
744a9719 2228 evsel->handler = trace__vfs_getname;
c522739d
ACM		 2229 perf_evlist__add(evlist, evsel);
2230}
2231
598d02c5
SF		 2232static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
2233 u64 config)
2234{
2235 struct perf_evsel *evsel;
2236 struct perf_event_attr attr = {
2237 .type = PERF_TYPE_SOFTWARE,
2238 .mmap_data = 1,
598d02c5
SF		 2239 };
2240
2241 attr.config = config;
0524798c 2242 attr.sample_period = 1;
598d02c5
SF		 2243
2244 event_attr_init(&attr);
2245
2246 evsel = perf_evsel__new(&attr);
2247 if (!evsel)
2248 return -ENOMEM;
2249
2250 evsel->handler = trace__pgfault;
2251 perf_evlist__add(evlist, evsel);
2252
2253 return 0;
2254}
2255
ddbb1b13
ACM		 2256static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
2257{
2258 const u32 type = event->header.type;
2259 struct perf_evsel *evsel;
2260
2261 if (!trace->full_time && trace->base_time == 0)
2262 trace->base_time = sample->time;
2263
2264 if (type != PERF_RECORD_SAMPLE) {
2265 trace__process_event(trace, trace->host, event, sample);
2266 return;
2267 }
2268
2269 evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
2270 if (evsel == NULL) {
2271 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
2272 return;
2273 }
2274
2275 if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
2276 sample->raw_data == NULL) {
2277 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
2278 perf_evsel__name(evsel), sample->tid,
2279 sample->cpu, sample->raw_size);
2280 } else {
2281 tracepoint_handler handler = evsel->handler;
2282 handler(trace, evsel, event, sample);
2283 }
2284}
2285
f15eb531 2286static int trace__run(struct trace *trace, int argc, const char **argv)
514f1c67 2287{
14a052df 2288 struct perf_evlist *evlist = trace->evlist;
efd5745e
ACM		 2289 int err = -1, i;
2290 unsigned long before;
f15eb531 2291 const bool forks = argc > 0;
46fb3c21 2292 bool draining = false;
514f1c67 2293
75b757ca
ACM		 2294 trace->live = true;
2295
e281a960
SF		 2296 if (trace->trace_syscalls &&
2297 perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
2298 trace__sys_exit))
801c67b0 2299 goto out_error_raw_syscalls;
514f1c67 2300
e281a960
SF		 2301 if (trace->trace_syscalls)
2302 perf_evlist__add_vfs_getname(evlist);
c522739d 2303
598d02c5 2304 if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
e2726d99 2305 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
5ed08dae 2306 goto out_error_mem;
e2726d99 2307 }
598d02c5
SF		 2308
2309 if ((trace->trace_pgfaults & TRACE_PFMIN) &&
2310 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
5ed08dae 2311 goto out_error_mem;
598d02c5 2312
1302d88e 2313 if (trace->sched &&
2cc990ba
ACM		 2314 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
2315 trace__sched_stat_runtime))
2316 goto out_error_sched_stat_runtime;
1302d88e 2317
514f1c67
ACM		 2318 err = perf_evlist__create_maps(evlist, &trace->opts.target);
2319 if (err < 0) {
c24ff998 2320 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
514f1c67
ACM		 2321 goto out_delete_evlist;
2322 }
2323
752fde44
ACM		 2324 err = trace__symbols_init(trace, evlist);
2325 if (err < 0) {
c24ff998 2326 fprintf(trace->output, "Problems initializing symbol libraries!\n");
03ad9747 2327 goto out_delete_evlist;
752fde44
ACM		 2328 }
2329
f77a9518 2330 perf_evlist__config(evlist, &trace->opts);
514f1c67 2331
f15eb531
NK		 2332 signal(SIGCHLD, sig_handler);
2333 signal(SIGINT, sig_handler);
2334
2335 if (forks) {
6ef73ec4 2336 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
735f7e0b 2337 argv, false, NULL);
f15eb531 2338 if (err < 0) {
c24ff998 2339 fprintf(trace->output, "Couldn't run the workload!\n");
03ad9747 2340 goto out_delete_evlist;
f15eb531
NK		 2341 }
2342 }
2343
514f1c67 2344 err = perf_evlist__open(evlist);
a8f23d8f
ACM		 2345 if (err < 0)
2346 goto out_error_open;
514f1c67 2347
241b057c
ACM		 2348 /*
2349 * Better not use !target__has_task() here because we need to cover the
2350 * case where no threads were specified in the command line, but a
2351 * workload was, and in that case we will fill in the thread_map when
2352 * we fork the workload in perf_evlist__prepare_workload.
2353 */
f078c385
ACM		 2354 if (trace->filter_pids.nr > 0)
2355 err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries);
e13798c7 2356 else if (thread_map__pid(evlist->threads, 0) == -1)
f078c385
ACM		 2357 err = perf_evlist__set_filter_pid(evlist, getpid());
2358
2359 if (err < 0) {
2360 printf("err=%d,%s\n", -err, strerror(-err));
2361 exit(1);
2362 }
241b057c 2363
f885037e 2364 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
e09b18d4
ACM		 2365 if (err < 0)
2366 goto out_error_mmap;
514f1c67 2367
cb24d01d
ACM		 2368 if (!target__none(&trace->opts.target))
2369 perf_evlist__enable(evlist);
2370
f15eb531
NK		 2371 if (forks)
2372 perf_evlist__start_workload(evlist);
2373
e13798c7 2374 trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 ||
42052bea
ACM		 2375 evlist->threads->nr > 1 ||
2376 perf_evlist__first(evlist)->attr.inherit;
514f1c67 2377again:
efd5745e 2378 before = trace->nr_events;
514f1c67
ACM		 2379
2380 for (i = 0; i < evlist->nr_mmaps; i++) {
2381 union perf_event *event;
2382
2383 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
514f1c67 2384 struct perf_sample sample;
514f1c67 2385
efd5745e 2386 ++trace->nr_events;
514f1c67 2387
514f1c67
ACM		 2388 err = perf_evlist__parse_sample(evlist, event, &sample);
2389 if (err) {
c24ff998 2390 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
8e50d384 2391 goto next_event;
514f1c67
ACM		 2392 }
2393
ddbb1b13 2394 trace__handle_event(trace, event, &sample);
8e50d384
ZZ		 2395next_event:
2396 perf_evlist__mmap_consume(evlist, i);
20c5f10e 2397
ba209f85
ACM		 2398 if (interrupted)
2399 goto out_disable;
02ac5421
ACM		 2400
2401 if (done && !draining) {
2402 perf_evlist__disable(evlist);
2403 draining = true;
2404 }
514f1c67
ACM		 2405 }
2406 }
2407
efd5745e 2408 if (trace->nr_events == before) {
ba209f85 2409 int timeout = done ? 100 : -1;
f15eb531 2410
46fb3c21
ACM		 2411 if (!draining && perf_evlist__poll(evlist, timeout) > 0) {
2412 if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0)
2413 draining = true;
2414
ba209f85 2415 goto again;
46fb3c21 2416 }
ba209f85
ACM		 2417 } else {
2418 goto again;
f15eb531
NK		 2419 }
2420
ba209f85 2421out_disable:
f3b623b8
ACM		 2422 thread__zput(trace->current);
2423
ba209f85 2424 perf_evlist__disable(evlist);
514f1c67 2425
c522739d
ACM		 2426 if (!err) {
2427 if (trace->summary)
2428 trace__fprintf_thread_summary(trace, trace->output);
2429
2430 if (trace->show_tool_stats) {
2431 fprintf(trace->output, "Stats:\n "
2432 " vfs_getname : %" PRIu64 "\n"
2433 " proc_getname: %" PRIu64 "\n",
2434 trace->stats.vfs_getname,
2435 trace->stats.proc_getname);
2436 }
2437 }
bf2575c1 2438
514f1c67
ACM		 2439out_delete_evlist:
2440 perf_evlist__delete(evlist);
14a052df 2441 trace->evlist = NULL;
75b757ca 2442 trace->live = false;
514f1c67 2443 return err;
6ef068cb
ACM		 2444{
2445 char errbuf[BUFSIZ];
a8f23d8f 2446
2cc990ba
ACM		 2447out_error_sched_stat_runtime:
2448 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
2449 goto out_error;
2450
801c67b0 2451out_error_raw_syscalls:
2cc990ba 2452 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
a8f23d8f
ACM		 2453 goto out_error;
2454
e09b18d4
ACM		 2455out_error_mmap:
2456 perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf));
2457 goto out_error;
2458
a8f23d8f
ACM		 2459out_error_open:
2460 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
2461
2462out_error:
6ef068cb 2463 fprintf(trace->output, "%s\n", errbuf);
87f91868 2464 goto out_delete_evlist;
514f1c67 2465}
5ed08dae
ACM		 2466out_error_mem:
2467 fprintf(trace->output, "Not enough memory to run!\n");
2468 goto out_delete_evlist;
a8f23d8f 2469}
514f1c67 2470
6810fc91
DA		 2471static int trace__replay(struct trace *trace)
2472{
2473 const struct perf_evsel_str_handler handlers[] = {
c522739d 2474 { "probe:vfs_getname", trace__vfs_getname, },
6810fc91 2475 };
f5fc1412
JO		 2476 struct perf_data_file file = {
2477 .path = input_name,
2478 .mode = PERF_DATA_MODE_READ,
e366a6d8 2479 .force = trace->force,
f5fc1412 2480 };
6810fc91 2481 struct perf_session *session;
003824e8 2482 struct perf_evsel *evsel;
6810fc91
DA		 2483 int err = -1;
2484
2485 trace->tool.sample = trace__process_sample;
2486 trace->tool.mmap = perf_event__process_mmap;
384c671e 2487 trace->tool.mmap2 = perf_event__process_mmap2;
6810fc91
DA		 2488 trace->tool.comm = perf_event__process_comm;
2489 trace->tool.exit = perf_event__process_exit;
2490 trace->tool.fork = perf_event__process_fork;
2491 trace->tool.attr = perf_event__process_attr;
2492 trace->tool.tracing_data = perf_event__process_tracing_data;
2493 trace->tool.build_id = perf_event__process_build_id;
2494
0a8cb85c 2495 trace->tool.ordered_events = true;
6810fc91
DA		 2496 trace->tool.ordering_requires_timestamps = true;
2497
2498 /* add tid to output */
2499 trace->multiple_threads = true;
2500
f5fc1412 2501 session = perf_session__new(&file, false, &trace->tool);
6810fc91 2502 if (session == NULL)
52e02834 2503 return -1;
6810fc91 2504
0a7e6d1b 2505 if (symbol__init(&session->header.env) < 0)
cb2ffae2
NK		 2506 goto out;
2507
8fb598e5
DA		 2508 trace->host = &session->machines.host;
2509
6810fc91
DA		 2510 err = perf_session__set_tracepoints_handlers(session, handlers);
2511 if (err)
2512 goto out;
2513
003824e8
NK		 2514 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2515 "raw_syscalls:sys_enter");
9aca7f17
DA		 2516 /* older kernels have syscalls tp versus raw_syscalls */
2517 if (evsel == NULL)
2518 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2519 "syscalls:sys_enter");
003824e8 2520
e281a960
SF		 2521 if (evsel &&
2522 (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
2523 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
003824e8
NK		 2524 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
2525 goto out;
2526 }
2527
2528 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2529 "raw_syscalls:sys_exit");
9aca7f17
DA		 2530 if (evsel == NULL)
2531 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2532 "syscalls:sys_exit");
e281a960
SF		 2533 if (evsel &&
2534 (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
2535 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
003824e8 2536 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
6810fc91
DA		 2537 goto out;
2538 }
2539
1e28fe0a
SF		 2540 evlist__for_each(session->evlist, evsel) {
2541 if (evsel->attr.type == PERF_TYPE_SOFTWARE &&
2542 (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
2543 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
2544 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS))
2545 evsel->handler = trace__pgfault;
2546 }
2547
bdc89661
DA		 2548 err = parse_target_str(trace);
2549 if (err != 0)
2550 goto out;
2551
6810fc91
DA		 2552 setup_pager();
2553
b7b61cbe 2554 err = perf_session__process_events(session);
6810fc91
DA		 2555 if (err)
2556 pr_err("Failed to process events, error %d", err);
2557
bf2575c1
DA		 2558 else if (trace->summary)
2559 trace__fprintf_thread_summary(trace, trace->output);
2560
6810fc91
DA		 2561out:
2562 perf_session__delete(session);
2563
2564 return err;
2565}
2566
1302d88e
ACM		 2567static size_t trace__fprintf_threads_header(FILE *fp)
2568{
2569 size_t printed;
2570
99ff7150 2571 printed = fprintf(fp, "\n Summary of events:\n\n");
bf2575c1
DA		 2572
2573 return printed;
2574}
2575
2576static size_t thread__dump_stats(struct thread_trace *ttrace,
2577 struct trace *trace, FILE *fp)
2578{
2579 struct stats *stats;
2580 size_t printed = 0;
2581 struct syscall *sc;
2582 struct int_node *inode = intlist__first(ttrace->syscall_stats);
2583
2584 if (inode == NULL)
2585 return 0;
2586
2587 printed += fprintf(fp, "\n");
2588
27a778b5
PE		 2589 printed += fprintf(fp, " syscall calls min avg max stddev\n");
2590 printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
2591 printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");
99ff7150 2592
bf2575c1
DA		 2593 /* each int_node is a syscall */
2594 while (inode) {
2595 stats = inode->priv;
2596 if (stats) {
2597 double min = (double)(stats->min) / NSEC_PER_MSEC;
2598 double max = (double)(stats->max) / NSEC_PER_MSEC;
2599 double avg = avg_stats(stats);
2600 double pct;
2601 u64 n = (u64) stats->n;
2602
2603 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
2604 avg /= NSEC_PER_MSEC;
2605
2606 sc = &trace->syscalls.table[inode->i];
99ff7150 2607 printed += fprintf(fp, " %-15s", sc->name);
27a778b5 2608 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
7f7a4138 2609 n, min, avg);
27a778b5 2610 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
bf2575c1
DA		 2611 }
2612
2613 inode = intlist__next(inode);
2614 }
2615
2616 printed += fprintf(fp, "\n\n");
1302d88e
ACM		 2617
2618 return printed;
2619}
2620
896cbb56
DA		 2621/* struct used to pass data to per-thread function */
2622struct summary_data {
2623 FILE *fp;
2624 struct trace *trace;
2625 size_t printed;
2626};
2627
2628static int trace__fprintf_one_thread(struct thread *thread, void *priv)
2629{
2630 struct summary_data *data = priv;
2631 FILE *fp = data->fp;
2632 size_t printed = data->printed;
2633 struct trace *trace = data->trace;
89dceb22 2634 struct thread_trace *ttrace = thread__priv(thread);
896cbb56
DA		 2635 double ratio;
2636
2637 if (ttrace == NULL)
2638 return 0;
2639
2640 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
2641
15e65c69 2642 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
99ff7150 2643 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
15e65c69 2644 printed += fprintf(fp, "%.1f%%", ratio);
a2ea67d7
SF		 2645 if (ttrace->pfmaj)
2646 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
2647 if (ttrace->pfmin)
2648 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
99ff7150 2649 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
bf2575c1 2650 printed += thread__dump_stats(ttrace, trace, fp);
896cbb56
DA		 2651
2652 data->printed += printed;
2653
2654 return 0;
2655}
2656
1302d88e
ACM		 2657static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
2658{
896cbb56
DA		 2659 struct summary_data data = {
2660 .fp = fp,
2661 .trace = trace
2662 };
2663 data.printed = trace__fprintf_threads_header(fp);
1302d88e 2664
896cbb56
DA		 2665 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
2666
2667 return data.printed;
1302d88e
ACM		 2668}
2669
ae9ed035
ACM		 2670static int trace__set_duration(const struct option *opt, const char *str,
2671 int unset __maybe_unused)
2672{
2673 struct trace *trace = opt->value;
2674
2675 trace->duration_filter = atof(str);
2676 return 0;
2677}
2678
f078c385
ACM		 2679static int trace__set_filter_pids(const struct option *opt, const char *str,
2680 int unset __maybe_unused)
2681{
2682 int ret = -1;
2683 size_t i;
2684 struct trace *trace = opt->value;
2685 /*
2686 * FIXME: introduce a intarray class, plain parse csv and create a
2687 * { int nr, int entries[] } struct...
2688 */
2689 struct intlist *list = intlist__new(str);
2690
2691 if (list == NULL)
2692 return -1;
2693
2694 i = trace->filter_pids.nr = intlist__nr_entries(list) + 1;
2695 trace->filter_pids.entries = calloc(i, sizeof(pid_t));
2696
2697 if (trace->filter_pids.entries == NULL)
2698 goto out;
2699
2700 trace->filter_pids.entries[0] = getpid();
2701
2702 for (i = 1; i < trace->filter_pids.nr; ++i)
2703 trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i;
2704
2705 intlist__delete(list);
2706 ret = 0;
2707out:
2708 return ret;
2709}
2710
c24ff998
ACM		 2711static int trace__open_output(struct trace *trace, const char *filename)
2712{
2713 struct stat st;
2714
2715 if (!stat(filename, &st) && st.st_size) {
2716 char oldname[PATH_MAX];
2717
2718 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
2719 unlink(oldname);
2720 rename(filename, oldname);
2721 }
2722
2723 trace->output = fopen(filename, "w");
2724
2725 return trace->output == NULL ? -errno : 0;
2726}
2727
598d02c5
SF		 2728static int parse_pagefaults(const struct option *opt, const char *str,
2729 int unset __maybe_unused)
2730{
2731 int *trace_pgfaults = opt->value;
2732
2733 if (strcmp(str, "all") == 0)
2734 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
2735 else if (strcmp(str, "maj") == 0)
2736 *trace_pgfaults |= TRACE_PFMAJ;
2737 else if (strcmp(str, "min") == 0)
2738 *trace_pgfaults |= TRACE_PFMIN;
2739 else
2740 return -1;
2741
2742 return 0;
2743}
2744
14a052df
ACM		 2745static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler)
2746{
2747 struct perf_evsel *evsel;
2748
2749 evlist__for_each(evlist, evsel)
2750 evsel->handler = handler;
2751}
2752
514f1c67
ACM		 2753int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
2754{
6fdd9cb7 2755 const char *trace_usage[] = {
f15eb531
NK		 2756 "perf trace [<options>] [<command>]",
2757 "perf trace [<options>] -- <command> [<options>]",
5e2485b1
DA		 2758 "perf trace record [<options>] [<command>]",
2759 "perf trace record [<options>] -- <command> [<options>]",
514f1c67
ACM		 2760 NULL
2761 };
2762 struct trace trace = {
c522739d
ACM		 2763 .audit = {
2764 .machine = audit_detect_machine(),
2765 .open_id = audit_name_to_syscall("open", trace.audit.machine),
2766 },
514f1c67
ACM		 2767 .syscalls = {
2768 . max = -1,
2769 },
2770 .opts = {
2771 .target = {
2772 .uid = UINT_MAX,
2773 .uses_mmap = true,
2774 },
2775 .user_freq = UINT_MAX,
2776 .user_interval = ULLONG_MAX,
509051ea 2777 .no_buffering = true,
38d5447d 2778 .mmap_pages = UINT_MAX,
9d9cad76 2779 .proc_map_timeout = 500,
514f1c67 2780 },
c24ff998 2781 .output = stdout,
50c95cbd 2782 .show_comm = true,
e281a960 2783 .trace_syscalls = true,
514f1c67 2784 };
c24ff998 2785 const char *output_name = NULL;
2ae3a312 2786 const char *ev_qualifier_str = NULL;
514f1c67 2787 const struct option trace_options[] = {
14a052df
ACM		 2788 OPT_CALLBACK(0, "event", &trace.evlist, "event",
2789 "event selector. use 'perf list' to list available events",
2790 parse_events_option),
50c95cbd
ACM		 2791 OPT_BOOLEAN(0, "comm", &trace.show_comm,
2792 "show the thread COMM next to its id"),
c522739d 2793 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
d303e85a 2794 OPT_STRING('e', "expr", &ev_qualifier_str, "expr", "list of syscalls to trace"),
c24ff998 2795 OPT_STRING('o', "output", &output_name, "file", "output file name"),
6810fc91 2796 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
514f1c67
ACM		 2797 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
2798 "trace events on existing process id"),
ac9be8ee 2799 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
514f1c67 2800 "trace events on existing thread id"),
fa0e4ffe
ACM		 2801 OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
2802 "pids to filter (by the kernel)", trace__set_filter_pids),
ac9be8ee 2803 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
514f1c67 2804 "system-wide collection from all CPUs"),
ac9be8ee 2805 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
514f1c67 2806 "list of cpus to monitor"),
6810fc91 2807 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
514f1c67 2808 "child tasks do not inherit counters"),
994a1f78
JO		 2809 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
2810 "number of mmap data pages",
2811 perf_evlist__parse_mmap_pages),
ac9be8ee 2812 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
514f1c67 2813 "user to profile"),
ae9ed035
ACM		 2814 OPT_CALLBACK(0, "duration", &trace, "float",
2815 "show only events with duration > N.M ms",
2816 trace__set_duration),
1302d88e 2817 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
7c304ee0 2818 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
4bb09192
DA		 2819 OPT_BOOLEAN('T', "time", &trace.full_time,
2820 "Show full timestamp, not time relative to first start"),
fd2eabaf
DA		 2821 OPT_BOOLEAN('s', "summary", &trace.summary_only,
2822 "Show only syscall summary with statistics"),
2823 OPT_BOOLEAN('S', "with-summary", &trace.summary,
2824 "Show all syscalls and summary with statistics"),
598d02c5
SF		 2825 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
2826 "Trace pagefaults", parse_pagefaults, "maj"),
e281a960 2827 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
e366a6d8 2828 OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"),
9d9cad76
KL		 2829 OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout,
2830 "per thread proc mmap processing timeout in ms"),
514f1c67
ACM		 2831 OPT_END()
2832 };
6fdd9cb7 2833 const char * const trace_subcommands[] = { "record", NULL };
514f1c67 2834 int err;
32caf0d1 2835 char bf[BUFSIZ];
514f1c67 2836
4d08cb80
ACM		 2837 signal(SIGSEGV, sighandler_dump_stack);
2838 signal(SIGFPE, sighandler_dump_stack);
2839
14a052df 2840 trace.evlist = perf_evlist__new();
14a052df
ACM		 2841
2842 if (trace.evlist == NULL) {
2843 pr_err("Not enough memory to run!\n");
ff8f695c 2844 err = -ENOMEM;
14a052df
ACM		 2845 goto out;
2846 }
2847
6fdd9cb7
YS		 2848 argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
2849 trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
fd2eabaf 2850
598d02c5
SF		 2851 if (trace.trace_pgfaults) {
2852 trace.opts.sample_address = true;
2853 trace.opts.sample_time = true;
2854 }
2855
14a052df
ACM		 2856 if (trace.evlist->nr_entries > 0)
2857 evlist__set_evsel_handler(trace.evlist, trace__event_handler);
2858
1e28fe0a
SF		 2859 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
2860 return trace__record(&trace, argc-1, &argv[1]);
2861
2862 /* summary_only implies summary option, but don't overwrite summary if set */
2863 if (trace.summary_only)
2864 trace.summary = trace.summary_only;
2865
726f3234
ACM		 2866 if (!trace.trace_syscalls && !trace.trace_pgfaults &&
2867 trace.evlist->nr_entries == 0 /* Was --events used? */) {
e281a960
SF		 2868 pr_err("Please specify something to trace.\n");
2869 return -1;
2870 }
2871
c24ff998
ACM		 2872 if (output_name != NULL) {
2873 err = trace__open_output(&trace, output_name);
2874 if (err < 0) {
2875 perror("failed to create output file");
2876 goto out;
2877 }
2878 }
2879
2ae3a312 2880 if (ev_qualifier_str != NULL) {
b059efdf
ACM		 2881 const char *s = ev_qualifier_str;
2882
2883 trace.not_ev_qualifier = *s == '!';
2884 if (trace.not_ev_qualifier)
2885 ++s;
2886 trace.ev_qualifier = strlist__new(true, s);
2ae3a312 2887 if (trace.ev_qualifier == NULL) {
c24ff998
ACM		 2888 fputs("Not enough memory to parse event qualifier",
2889 trace.output);
2890 err = -ENOMEM;
2891 goto out_close;
2ae3a312 2892 }
d0cc439b
ACM		 2893
2894 err = trace__validate_ev_qualifier(&trace);
2895 if (err)
2896 goto out_close;
2ae3a312
ACM		 2897 }
2898
602ad878 2899 err = target__validate(&trace.opts.target);
32caf0d1 2900 if (err) {
602ad878 2901 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 2902 fprintf(trace.output, "%s", bf);
2903 goto out_close;
32caf0d1
NK		 2904 }
2905
602ad878 2906 err = target__parse_uid(&trace.opts.target);
514f1c67 2907 if (err) {
602ad878 2908 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 2909 fprintf(trace.output, "%s", bf);
2910 goto out_close;
514f1c67
ACM		 2911 }
2912
602ad878 2913 if (!argc && target__none(&trace.opts.target))
ee76120e
NK		 2914 trace.opts.target.system_wide = true;
2915
6810fc91
DA		 2916 if (input_name)
2917 err = trace__replay(&trace);
2918 else
2919 err = trace__run(&trace, argc, argv);
1302d88e 2920
c24ff998
ACM		 2921out_close:
2922 if (output_name != NULL)
2923 fclose(trace.output);
2924out:
1302d88e 2925 return err;
514f1c67 2926}
Linux kernel - Deliverables
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