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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...
[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
55d43bca
DA		 1620/*
1621 * args is to be interpreted as a series of longs but we need to handle
1622 * 8-byte unaligned accesses. args points to raw_data within the event
1623 * and raw_data is guaranteed to be 8-byte unaligned because it is
1624 * preceded by raw_size which is a u32. So we need to copy args to a temp
1625 * variable to read it. Most notably this avoids extended load instructions
1626 * on unaligned addresses
1627 */
1628
752fde44 1629static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
55d43bca 1630 unsigned char *args, struct trace *trace,
75b757ca 1631 struct thread *thread)
514f1c67 1632{
514f1c67 1633 size_t printed = 0;
55d43bca
DA		 1634 unsigned char *p;
1635 unsigned long val;
514f1c67 1636
f208bd8d 1637 if (sc->args != NULL) {
514f1c67 1638 struct format_field *field;
01533e97
ACM		 1639 u8 bit = 1;
1640 struct syscall_arg arg = {
75b757ca
ACM		 1641 .idx = 0,
1642 .mask = 0,
1643 .trace = trace,
1644 .thread = thread,
01533e97 1645 };
6e7eeb51 1646
f208bd8d 1647 for (field = sc->args; field;
01533e97
ACM		 1648 field = field->next, ++arg.idx, bit <<= 1) {
1649 if (arg.mask & bit)
6e7eeb51 1650 continue;
55d43bca
DA		 1651
1652 /* special care for unaligned accesses */
1653 p = args + sizeof(unsigned long) * arg.idx;
1654 memcpy(&val, p, sizeof(val));
1655
4aa58232
ACM		 1656 /*
1657 * Suppress this argument if its value is zero and
1658 * and we don't have a string associated in an
1659 * strarray for it.
1660 */
55d43bca 1661 if (val == 0 &&
4aa58232
ACM		 1662 !(sc->arg_scnprintf &&
1663 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
1664 sc->arg_parm[arg.idx]))
22ae5cf1
ACM		 1665 continue;
1666
752fde44 1667 printed += scnprintf(bf + printed, size - printed,
13d4ff3e 1668 "%s%s: ", printed ? ", " : "", field->name);
01533e97 1669 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
55d43bca 1670 arg.val = val;
1f115cb7
ACM		 1671 if (sc->arg_parm)
1672 arg.parm = sc->arg_parm[arg.idx];
01533e97
ACM		 1673 printed += sc->arg_scnprintf[arg.idx](bf + printed,
1674 size - printed, &arg);
6e7eeb51 1675 } else {
13d4ff3e 1676 printed += scnprintf(bf + printed, size - printed,
55d43bca 1677 "%ld", val);
6e7eeb51 1678 }
514f1c67
ACM		 1679 }
1680 } else {
01533e97
ACM		 1681 int i = 0;
1682
514f1c67 1683 while (i < 6) {
55d43bca
DA		 1684 /* special care for unaligned accesses */
1685 p = args + sizeof(unsigned long) * i;
1686 memcpy(&val, p, sizeof(val));
752fde44
ACM		 1687 printed += scnprintf(bf + printed, size - printed,
1688 "%sarg%d: %ld",
55d43bca 1689 printed ? ", " : "", i, val);
514f1c67
ACM		 1690 ++i;
1691 }
1692 }
1693
1694 return printed;
1695}
1696
ba3d7dee 1697typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1698 union perf_event *event,
ba3d7dee
ACM		 1699 struct perf_sample *sample);
1700
1701static struct syscall *trace__syscall_info(struct trace *trace,
bf2575c1 1702 struct perf_evsel *evsel, int id)
ba3d7dee 1703{
ba3d7dee
ACM		 1704
1705 if (id < 0) {
adaa18bf
ACM		 1706
1707 /*
1708 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
1709 * before that, leaving at a higher verbosity level till that is
1710 * explained. Reproduced with plain ftrace with:
1711 *
1712 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
1713 * grep "NR -1 " /t/trace_pipe
1714 *
1715 * After generating some load on the machine.
1716 */
1717 if (verbose > 1) {
1718 static u64 n;
1719 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
1720 id, perf_evsel__name(evsel), ++n);
1721 }
ba3d7dee
ACM		 1722 return NULL;
1723 }
1724
1725 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) &&
1726 trace__read_syscall_info(trace, id))
1727 goto out_cant_read;
1728
1729 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL))
1730 goto out_cant_read;
1731
1732 return &trace->syscalls.table[id];
1733
1734out_cant_read:
7c304ee0
ACM		 1735 if (verbose) {
1736 fprintf(trace->output, "Problems reading syscall %d", id);
1737 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
1738 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
1739 fputs(" information\n", trace->output);
1740 }
ba3d7dee
ACM		 1741 return NULL;
1742}
1743
bf2575c1
DA		 1744static void thread__update_stats(struct thread_trace *ttrace,
1745 int id, struct perf_sample *sample)
1746{
1747 struct int_node *inode;
1748 struct stats *stats;
1749 u64 duration = 0;
1750
1751 inode = intlist__findnew(ttrace->syscall_stats, id);
1752 if (inode == NULL)
1753 return;
1754
1755 stats = inode->priv;
1756 if (stats == NULL) {
1757 stats = malloc(sizeof(struct stats));
1758 if (stats == NULL)
1759 return;
1760 init_stats(stats);
1761 inode->priv = stats;
1762 }
1763
1764 if (ttrace->entry_time && sample->time > ttrace->entry_time)
1765 duration = sample->time - ttrace->entry_time;
1766
1767 update_stats(stats, duration);
1768}
1769
e596663e
ACM		 1770static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample)
1771{
1772 struct thread_trace *ttrace;
1773 u64 duration;
1774 size_t printed;
1775
1776 if (trace->current == NULL)
1777 return 0;
1778
1779 ttrace = thread__priv(trace->current);
1780
1781 if (!ttrace->entry_pending)
1782 return 0;
1783
1784 duration = sample->time - ttrace->entry_time;
1785
1786 printed = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output);
1787 printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str);
1788 ttrace->entry_pending = false;
1789
1790 return printed;
1791}
1792
ba3d7dee 1793static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1794 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 1795 struct perf_sample *sample)
1796{
752fde44 1797 char *msg;
ba3d7dee 1798 void *args;
752fde44 1799 size_t printed = 0;
2ae3a312 1800 struct thread *thread;
b91fc39f 1801 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 1802 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 1803 struct thread_trace *ttrace;
1804
1805 if (sc == NULL)
1806 return -1;
ba3d7dee 1807
2ae3a312
ACM		 1808 if (sc->filtered)
1809 return 0;
1810
8fb598e5 1811 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 1812 ttrace = thread__trace(thread, trace->output);
2ae3a312 1813 if (ttrace == NULL)
b91fc39f 1814 goto out_put;
ba3d7dee 1815
77170988 1816 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
752fde44
ACM		 1817
1818 if (ttrace->entry_str == NULL) {
1819 ttrace->entry_str = malloc(1024);
1820 if (!ttrace->entry_str)
b91fc39f 1821 goto out_put;
752fde44
ACM		 1822 }
1823
13f22a2d 1824 if (!trace->summary_only)
6ebad5c1 1825 trace__printf_interrupted_entry(trace, sample);
e596663e 1826
752fde44
ACM		 1827 ttrace->entry_time = sample->time;
1828 msg = ttrace->entry_str;
1829 printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
1830
75b757ca
ACM		 1831 printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
1832 args, trace, thread);
752fde44 1833
5089f20e 1834 if (sc->is_exit) {
fd2eabaf 1835 if (!trace->duration_filter && !trace->summary_only) {
c24ff998
ACM		 1836 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
1837 fprintf(trace->output, "%-70s\n", ttrace->entry_str);
ae9ed035 1838 }
752fde44
ACM		 1839 } else
1840 ttrace->entry_pending = true;
ba3d7dee 1841
f3b623b8
ACM		 1842 if (trace->current != thread) {
1843 thread__put(trace->current);
1844 trace->current = thread__get(thread);
1845 }
b91fc39f
ACM		 1846 err = 0;
1847out_put:
1848 thread__put(thread);
1849 return err;
ba3d7dee
ACM		 1850}
1851
1852static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1853 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 1854 struct perf_sample *sample)
1855{
2c82c3ad 1856 long ret;
60c907ab 1857 u64 duration = 0;
2ae3a312 1858 struct thread *thread;
b91fc39f 1859 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 1860 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 1861 struct thread_trace *ttrace;
1862
1863 if (sc == NULL)
1864 return -1;
ba3d7dee 1865
2ae3a312
ACM		 1866 if (sc->filtered)
1867 return 0;
1868
8fb598e5 1869 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 1870 ttrace = thread__trace(thread, trace->output);
2ae3a312 1871 if (ttrace == NULL)
b91fc39f 1872 goto out_put;
ba3d7dee 1873
bf2575c1
DA		 1874 if (trace->summary)
1875 thread__update_stats(ttrace, id, sample);
1876
77170988 1877 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
ba3d7dee 1878
c522739d
ACM		 1879 if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
1880 trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
1881 trace->last_vfs_getname = NULL;
1882 ++trace->stats.vfs_getname;
1883 }
1884
752fde44
ACM		 1885 ttrace->exit_time = sample->time;
1886
ae9ed035 1887 if (ttrace->entry_time) {
60c907ab 1888 duration = sample->time - ttrace->entry_time;
ae9ed035
ACM		 1889 if (trace__filter_duration(trace, duration))
1890 goto out;
1891 } else if (trace->duration_filter)
1892 goto out;
60c907ab 1893
fd2eabaf
DA		 1894 if (trace->summary_only)
1895 goto out;
1896
c24ff998 1897 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
752fde44
ACM		 1898
1899 if (ttrace->entry_pending) {
c24ff998 1900 fprintf(trace->output, "%-70s", ttrace->entry_str);
752fde44 1901 } else {
c24ff998
ACM		 1902 fprintf(trace->output, " ... [");
1903 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
1904 fprintf(trace->output, "]: %s()", sc->name);
752fde44
ACM		 1905 }
1906
da3c9a44
ACM		 1907 if (sc->fmt == NULL) {
1908signed_print:
2c82c3ad 1909 fprintf(trace->output, ") = %ld", ret);
da3c9a44 1910 } else if (ret < 0 && sc->fmt->errmsg) {
942a91ed 1911 char bf[STRERR_BUFSIZE];
ba3d7dee
ACM		 1912 const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
1913 *e = audit_errno_to_name(-ret);
1914
c24ff998 1915 fprintf(trace->output, ") = -1 %s %s", e, emsg);
da3c9a44 1916 } else if (ret == 0 && sc->fmt->timeout)
c24ff998 1917 fprintf(trace->output, ") = 0 Timeout");
04b34729 1918 else if (sc->fmt->hexret)
2c82c3ad 1919 fprintf(trace->output, ") = %#lx", ret);
ba3d7dee 1920 else
da3c9a44 1921 goto signed_print;
ba3d7dee 1922
c24ff998 1923 fputc('\n', trace->output);
ae9ed035 1924out:
752fde44 1925 ttrace->entry_pending = false;
b91fc39f
ACM		 1926 err = 0;
1927out_put:
1928 thread__put(thread);
1929 return err;
ba3d7dee
ACM		 1930}
1931
c522739d 1932static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1933 union perf_event *event __maybe_unused,
c522739d
ACM		 1934 struct perf_sample *sample)
1935{
1936 trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
1937 return 0;
1938}
1939
1302d88e 1940static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1941 union perf_event *event __maybe_unused,
1302d88e
ACM		 1942 struct perf_sample *sample)
1943{
1944 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
1945 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
8fb598e5 1946 struct thread *thread = machine__findnew_thread(trace->host,
314add6b
AH		 1947 sample->pid,
1948 sample->tid);
c24ff998 1949 struct thread_trace *ttrace = thread__trace(thread, trace->output);
1302d88e
ACM		 1950
1951 if (ttrace == NULL)
1952 goto out_dump;
1953
1954 ttrace->runtime_ms += runtime_ms;
1955 trace->runtime_ms += runtime_ms;
b91fc39f 1956 thread__put(thread);
1302d88e
ACM		 1957 return 0;
1958
1959out_dump:
c24ff998 1960 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
1302d88e
ACM		 1961 evsel->name,
1962 perf_evsel__strval(evsel, sample, "comm"),
1963 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
1964 runtime,
1965 perf_evsel__intval(evsel, sample, "vruntime"));
b91fc39f 1966 thread__put(thread);
1302d88e
ACM		 1967 return 0;
1968}
1969
14a052df
ACM		 1970static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
1971 union perf_event *event __maybe_unused,
1972 struct perf_sample *sample)
1973{
1974 trace__printf_interrupted_entry(trace, sample);
1975 trace__fprintf_tstamp(trace, sample->time, trace->output);
0808921a
ACM		 1976
1977 if (trace->trace_syscalls)
1978 fprintf(trace->output, "( ): ");
1979
1980 fprintf(trace->output, "%s:", evsel->name);
14a052df
ACM		 1981
1982 if (evsel->tp_format) {
1983 event_format__fprintf(evsel->tp_format, sample->cpu,
1984 sample->raw_data, sample->raw_size,
1985 trace->output);
1986 }
1987
1988 fprintf(trace->output, ")\n");
1989 return 0;
1990}
1991
598d02c5
SF		 1992static void print_location(FILE *f, struct perf_sample *sample,
1993 struct addr_location *al,
1994 bool print_dso, bool print_sym)
1995{
1996
1997 if ((verbose || print_dso) && al->map)
1998 fprintf(f, "%s@", al->map->dso->long_name);
1999
2000 if ((verbose || print_sym) && al->sym)
4414a3c5 2001 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
598d02c5
SF		 2002 al->addr - al->sym->start);
2003 else if (al->map)
4414a3c5 2004 fprintf(f, "0x%" PRIx64, al->addr);
598d02c5 2005 else
4414a3c5 2006 fprintf(f, "0x%" PRIx64, sample->addr);
598d02c5
SF		 2007}
2008
2009static int trace__pgfault(struct trace *trace,
2010 struct perf_evsel *evsel,
2011 union perf_event *event,
2012 struct perf_sample *sample)
2013{
2014 struct thread *thread;
2015 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
2016 struct addr_location al;
2017 char map_type = 'd';
a2ea67d7 2018 struct thread_trace *ttrace;
b91fc39f 2019 int err = -1;
598d02c5
SF		 2020
2021 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
a2ea67d7
SF		 2022 ttrace = thread__trace(thread, trace->output);
2023 if (ttrace == NULL)
b91fc39f 2024 goto out_put;
a2ea67d7
SF		 2025
2026 if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
2027 ttrace->pfmaj++;
2028 else
2029 ttrace->pfmin++;
2030
2031 if (trace->summary_only)
b91fc39f 2032 goto out;
598d02c5 2033
bb871a9c 2034 thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
598d02c5
SF		 2035 sample->ip, &al);
2036
2037 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
2038
2039 fprintf(trace->output, "%sfault [",
2040 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
2041 "maj" : "min");
2042
2043 print_location(trace->output, sample, &al, false, true);
2044
2045 fprintf(trace->output, "] => ");
2046
bb871a9c 2047 thread__find_addr_location(thread, cpumode, MAP__VARIABLE,
598d02c5
SF		 2048 sample->addr, &al);
2049
2050 if (!al.map) {
bb871a9c 2051 thread__find_addr_location(thread, cpumode,
598d02c5
SF		 2052 MAP__FUNCTION, sample->addr, &al);
2053
2054 if (al.map)
2055 map_type = 'x';
2056 else
2057 map_type = '?';
2058 }
2059
2060 print_location(trace->output, sample, &al, true, false);
2061
2062 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
b91fc39f
ACM		 2063out:
2064 err = 0;
2065out_put:
2066 thread__put(thread);
2067 return err;
598d02c5
SF		 2068}
2069
bdc89661
DA		 2070static bool skip_sample(struct trace *trace, struct perf_sample *sample)
2071{
2072 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
2073 (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
2074 return false;
2075
2076 if (trace->pid_list || trace->tid_list)
2077 return true;
2078
2079 return false;
2080}
2081
6810fc91 2082static int trace__process_sample(struct perf_tool *tool,
0c82adcf 2083 union perf_event *event,
6810fc91
DA		 2084 struct perf_sample *sample,
2085 struct perf_evsel *evsel,
2086 struct machine *machine __maybe_unused)
2087{
2088 struct trace *trace = container_of(tool, struct trace, tool);
2089 int err = 0;
2090
744a9719 2091 tracepoint_handler handler = evsel->handler;
6810fc91 2092
bdc89661
DA		 2093 if (skip_sample(trace, sample))
2094 return 0;
2095
4bb09192 2096 if (!trace->full_time && trace->base_time == 0)
6810fc91
DA		 2097 trace->base_time = sample->time;
2098
3160565f
DA		 2099 if (handler) {
2100 ++trace->nr_events;
0c82adcf 2101 handler(trace, evsel, event, sample);
3160565f 2102 }
6810fc91
DA		 2103
2104 return err;
2105}
2106
bdc89661
DA		 2107static int parse_target_str(struct trace *trace)
2108{
2109 if (trace->opts.target.pid) {
2110 trace->pid_list = intlist__new(trace->opts.target.pid);
2111 if (trace->pid_list == NULL) {
2112 pr_err("Error parsing process id string\n");
2113 return -EINVAL;
2114 }
2115 }
2116
2117 if (trace->opts.target.tid) {
2118 trace->tid_list = intlist__new(trace->opts.target.tid);
2119 if (trace->tid_list == NULL) {
2120 pr_err("Error parsing thread id string\n");
2121 return -EINVAL;
2122 }
2123 }
2124
2125 return 0;
2126}
2127
1e28fe0a 2128static int trace__record(struct trace *trace, int argc, const char **argv)
5e2485b1
DA		 2129{
2130 unsigned int rec_argc, i, j;
2131 const char **rec_argv;
2132 const char * const record_args[] = {
2133 "record",
2134 "-R",
2135 "-m", "1024",
2136 "-c", "1",
5e2485b1
DA		 2137 };
2138
1e28fe0a
SF		 2139 const char * const sc_args[] = { "-e", };
2140 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
2141 const char * const majpf_args[] = { "-e", "major-faults" };
2142 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
2143 const char * const minpf_args[] = { "-e", "minor-faults" };
2144 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
2145
9aca7f17 2146 /* +1 is for the event string below */
1e28fe0a
SF		 2147 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 +
2148 majpf_args_nr + minpf_args_nr + argc;
5e2485b1
DA		 2149 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2150
2151 if (rec_argv == NULL)
2152 return -ENOMEM;
2153
1e28fe0a 2154 j = 0;
5e2485b1 2155 for (i = 0; i < ARRAY_SIZE(record_args); i++)
1e28fe0a
SF		 2156 rec_argv[j++] = record_args[i];
2157
e281a960
SF		 2158 if (trace->trace_syscalls) {
2159 for (i = 0; i < sc_args_nr; i++)
2160 rec_argv[j++] = sc_args[i];
2161
2162 /* event string may be different for older kernels - e.g., RHEL6 */
2163 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
2164 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
2165 else if (is_valid_tracepoint("syscalls:sys_enter"))
2166 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
2167 else {
2168 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
2169 return -1;
2170 }
9aca7f17 2171 }
9aca7f17 2172
1e28fe0a
SF		 2173 if (trace->trace_pgfaults & TRACE_PFMAJ)
2174 for (i = 0; i < majpf_args_nr; i++)
2175 rec_argv[j++] = majpf_args[i];
2176
2177 if (trace->trace_pgfaults & TRACE_PFMIN)
2178 for (i = 0; i < minpf_args_nr; i++)
2179 rec_argv[j++] = minpf_args[i];
2180
2181 for (i = 0; i < (unsigned int)argc; i++)
2182 rec_argv[j++] = argv[i];
5e2485b1 2183
1e28fe0a 2184 return cmd_record(j, rec_argv, NULL);
5e2485b1
DA		 2185}
2186
bf2575c1
DA		 2187static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
2188
c522739d
ACM		 2189static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
2190{
ef503831 2191 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
c522739d
ACM		 2192 if (evsel == NULL)
2193 return;
2194
2195 if (perf_evsel__field(evsel, "pathname") == NULL) {
2196 perf_evsel__delete(evsel);
2197 return;
2198 }
2199
744a9719 2200 evsel->handler = trace__vfs_getname;
c522739d
ACM		 2201 perf_evlist__add(evlist, evsel);
2202}
2203
598d02c5
SF		 2204static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
2205 u64 config)
2206{
2207 struct perf_evsel *evsel;
2208 struct perf_event_attr attr = {
2209 .type = PERF_TYPE_SOFTWARE,
2210 .mmap_data = 1,
598d02c5
SF		 2211 };
2212
2213 attr.config = config;
0524798c 2214 attr.sample_period = 1;
598d02c5
SF		 2215
2216 event_attr_init(&attr);
2217
2218 evsel = perf_evsel__new(&attr);
2219 if (!evsel)
2220 return -ENOMEM;
2221
2222 evsel->handler = trace__pgfault;
2223 perf_evlist__add(evlist, evsel);
2224
2225 return 0;
2226}
2227
ddbb1b13
ACM		 2228static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
2229{
2230 const u32 type = event->header.type;
2231 struct perf_evsel *evsel;
2232
2233 if (!trace->full_time && trace->base_time == 0)
2234 trace->base_time = sample->time;
2235
2236 if (type != PERF_RECORD_SAMPLE) {
2237 trace__process_event(trace, trace->host, event, sample);
2238 return;
2239 }
2240
2241 evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
2242 if (evsel == NULL) {
2243 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
2244 return;
2245 }
2246
2247 if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
2248 sample->raw_data == NULL) {
2249 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
2250 perf_evsel__name(evsel), sample->tid,
2251 sample->cpu, sample->raw_size);
2252 } else {
2253 tracepoint_handler handler = evsel->handler;
2254 handler(trace, evsel, event, sample);
2255 }
2256}
2257
f15eb531 2258static int trace__run(struct trace *trace, int argc, const char **argv)
514f1c67 2259{
14a052df 2260 struct perf_evlist *evlist = trace->evlist;
efd5745e
ACM		 2261 int err = -1, i;
2262 unsigned long before;
f15eb531 2263 const bool forks = argc > 0;
46fb3c21 2264 bool draining = false;
514f1c67 2265
75b757ca
ACM		 2266 trace->live = true;
2267
e281a960
SF		 2268 if (trace->trace_syscalls &&
2269 perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
2270 trace__sys_exit))
801c67b0 2271 goto out_error_raw_syscalls;
514f1c67 2272
e281a960
SF		 2273 if (trace->trace_syscalls)
2274 perf_evlist__add_vfs_getname(evlist);
c522739d 2275
598d02c5 2276 if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
e2726d99 2277 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
5ed08dae 2278 goto out_error_mem;
e2726d99 2279 }
598d02c5
SF		 2280
2281 if ((trace->trace_pgfaults & TRACE_PFMIN) &&
2282 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
5ed08dae 2283 goto out_error_mem;
598d02c5 2284
1302d88e 2285 if (trace->sched &&
2cc990ba
ACM		 2286 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
2287 trace__sched_stat_runtime))
2288 goto out_error_sched_stat_runtime;
1302d88e 2289
514f1c67
ACM		 2290 err = perf_evlist__create_maps(evlist, &trace->opts.target);
2291 if (err < 0) {
c24ff998 2292 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
514f1c67
ACM		 2293 goto out_delete_evlist;
2294 }
2295
752fde44
ACM		 2296 err = trace__symbols_init(trace, evlist);
2297 if (err < 0) {
c24ff998 2298 fprintf(trace->output, "Problems initializing symbol libraries!\n");
03ad9747 2299 goto out_delete_evlist;
752fde44
ACM		 2300 }
2301
f77a9518 2302 perf_evlist__config(evlist, &trace->opts);
514f1c67 2303
f15eb531
NK		 2304 signal(SIGCHLD, sig_handler);
2305 signal(SIGINT, sig_handler);
2306
2307 if (forks) {
6ef73ec4 2308 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
735f7e0b 2309 argv, false, NULL);
f15eb531 2310 if (err < 0) {
c24ff998 2311 fprintf(trace->output, "Couldn't run the workload!\n");
03ad9747 2312 goto out_delete_evlist;
f15eb531
NK		 2313 }
2314 }
2315
514f1c67 2316 err = perf_evlist__open(evlist);
a8f23d8f
ACM		 2317 if (err < 0)
2318 goto out_error_open;
514f1c67 2319
241b057c
ACM		 2320 /*
2321 * Better not use !target__has_task() here because we need to cover the
2322 * case where no threads were specified in the command line, but a
2323 * workload was, and in that case we will fill in the thread_map when
2324 * we fork the workload in perf_evlist__prepare_workload.
2325 */
f078c385
ACM		 2326 if (trace->filter_pids.nr > 0)
2327 err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries);
e13798c7 2328 else if (thread_map__pid(evlist->threads, 0) == -1)
f078c385
ACM		 2329 err = perf_evlist__set_filter_pid(evlist, getpid());
2330
2331 if (err < 0) {
2332 printf("err=%d,%s\n", -err, strerror(-err));
2333 exit(1);
2334 }
241b057c 2335
f885037e 2336 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
e09b18d4
ACM		 2337 if (err < 0)
2338 goto out_error_mmap;
514f1c67 2339
cb24d01d
ACM		 2340 if (!target__none(&trace->opts.target))
2341 perf_evlist__enable(evlist);
2342
f15eb531
NK		 2343 if (forks)
2344 perf_evlist__start_workload(evlist);
2345
e13798c7 2346 trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 ||
42052bea
ACM		 2347 evlist->threads->nr > 1 ||
2348 perf_evlist__first(evlist)->attr.inherit;
514f1c67 2349again:
efd5745e 2350 before = trace->nr_events;
514f1c67
ACM		 2351
2352 for (i = 0; i < evlist->nr_mmaps; i++) {
2353 union perf_event *event;
2354
2355 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
514f1c67 2356 struct perf_sample sample;
514f1c67 2357
efd5745e 2358 ++trace->nr_events;
514f1c67 2359
514f1c67
ACM		 2360 err = perf_evlist__parse_sample(evlist, event, &sample);
2361 if (err) {
c24ff998 2362 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
8e50d384 2363 goto next_event;
514f1c67
ACM		 2364 }
2365
ddbb1b13 2366 trace__handle_event(trace, event, &sample);
8e50d384
ZZ		 2367next_event:
2368 perf_evlist__mmap_consume(evlist, i);
20c5f10e 2369
ba209f85
ACM		 2370 if (interrupted)
2371 goto out_disable;
02ac5421
ACM		 2372
2373 if (done && !draining) {
2374 perf_evlist__disable(evlist);
2375 draining = true;
2376 }
514f1c67
ACM		 2377 }
2378 }
2379
efd5745e 2380 if (trace->nr_events == before) {
ba209f85 2381 int timeout = done ? 100 : -1;
f15eb531 2382
46fb3c21
ACM		 2383 if (!draining && perf_evlist__poll(evlist, timeout) > 0) {
2384 if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0)
2385 draining = true;
2386
ba209f85 2387 goto again;
46fb3c21 2388 }
ba209f85
ACM		 2389 } else {
2390 goto again;
f15eb531
NK		 2391 }
2392
ba209f85 2393out_disable:
f3b623b8
ACM		 2394 thread__zput(trace->current);
2395
ba209f85 2396 perf_evlist__disable(evlist);
514f1c67 2397
c522739d
ACM		 2398 if (!err) {
2399 if (trace->summary)
2400 trace__fprintf_thread_summary(trace, trace->output);
2401
2402 if (trace->show_tool_stats) {
2403 fprintf(trace->output, "Stats:\n "
2404 " vfs_getname : %" PRIu64 "\n"
2405 " proc_getname: %" PRIu64 "\n",
2406 trace->stats.vfs_getname,
2407 trace->stats.proc_getname);
2408 }
2409 }
bf2575c1 2410
514f1c67
ACM		 2411out_delete_evlist:
2412 perf_evlist__delete(evlist);
14a052df 2413 trace->evlist = NULL;
75b757ca 2414 trace->live = false;
514f1c67 2415 return err;
6ef068cb
ACM		 2416{
2417 char errbuf[BUFSIZ];
a8f23d8f 2418
2cc990ba
ACM		 2419out_error_sched_stat_runtime:
2420 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
2421 goto out_error;
2422
801c67b0 2423out_error_raw_syscalls:
2cc990ba 2424 debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
a8f23d8f
ACM		 2425 goto out_error;
2426
e09b18d4
ACM		 2427out_error_mmap:
2428 perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf));
2429 goto out_error;
2430
a8f23d8f
ACM		 2431out_error_open:
2432 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
2433
2434out_error:
6ef068cb 2435 fprintf(trace->output, "%s\n", errbuf);
87f91868 2436 goto out_delete_evlist;
514f1c67 2437}
5ed08dae
ACM		 2438out_error_mem:
2439 fprintf(trace->output, "Not enough memory to run!\n");
2440 goto out_delete_evlist;
a8f23d8f 2441}
514f1c67 2442
6810fc91
DA		 2443static int trace__replay(struct trace *trace)
2444{
2445 const struct perf_evsel_str_handler handlers[] = {
c522739d 2446 { "probe:vfs_getname", trace__vfs_getname, },
6810fc91 2447 };
f5fc1412
JO		 2448 struct perf_data_file file = {
2449 .path = input_name,
2450 .mode = PERF_DATA_MODE_READ,
e366a6d8 2451 .force = trace->force,
f5fc1412 2452 };
6810fc91 2453 struct perf_session *session;
003824e8 2454 struct perf_evsel *evsel;
6810fc91
DA		 2455 int err = -1;
2456
2457 trace->tool.sample = trace__process_sample;
2458 trace->tool.mmap = perf_event__process_mmap;
384c671e 2459 trace->tool.mmap2 = perf_event__process_mmap2;
6810fc91
DA		 2460 trace->tool.comm = perf_event__process_comm;
2461 trace->tool.exit = perf_event__process_exit;
2462 trace->tool.fork = perf_event__process_fork;
2463 trace->tool.attr = perf_event__process_attr;
2464 trace->tool.tracing_data = perf_event__process_tracing_data;
2465 trace->tool.build_id = perf_event__process_build_id;
2466
0a8cb85c 2467 trace->tool.ordered_events = true;
6810fc91
DA		 2468 trace->tool.ordering_requires_timestamps = true;
2469
2470 /* add tid to output */
2471 trace->multiple_threads = true;
2472
f5fc1412 2473 session = perf_session__new(&file, false, &trace->tool);
6810fc91 2474 if (session == NULL)
52e02834 2475 return -1;
6810fc91 2476
0a7e6d1b 2477 if (symbol__init(&session->header.env) < 0)
cb2ffae2
NK		 2478 goto out;
2479
8fb598e5
DA		 2480 trace->host = &session->machines.host;
2481
6810fc91
DA		 2482 err = perf_session__set_tracepoints_handlers(session, handlers);
2483 if (err)
2484 goto out;
2485
003824e8
NK		 2486 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2487 "raw_syscalls:sys_enter");
9aca7f17
DA		 2488 /* older kernels have syscalls tp versus raw_syscalls */
2489 if (evsel == NULL)
2490 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2491 "syscalls:sys_enter");
003824e8 2492
e281a960
SF		 2493 if (evsel &&
2494 (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
2495 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
003824e8
NK		 2496 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
2497 goto out;
2498 }
2499
2500 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2501 "raw_syscalls:sys_exit");
9aca7f17
DA		 2502 if (evsel == NULL)
2503 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2504 "syscalls:sys_exit");
e281a960
SF		 2505 if (evsel &&
2506 (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
2507 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
003824e8 2508 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
6810fc91
DA		 2509 goto out;
2510 }
2511
1e28fe0a
SF		 2512 evlist__for_each(session->evlist, evsel) {
2513 if (evsel->attr.type == PERF_TYPE_SOFTWARE &&
2514 (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
2515 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
2516 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS))
2517 evsel->handler = trace__pgfault;
2518 }
2519
bdc89661
DA		 2520 err = parse_target_str(trace);
2521 if (err != 0)
2522 goto out;
2523
6810fc91
DA		 2524 setup_pager();
2525
b7b61cbe 2526 err = perf_session__process_events(session);
6810fc91
DA		 2527 if (err)
2528 pr_err("Failed to process events, error %d", err);
2529
bf2575c1
DA		 2530 else if (trace->summary)
2531 trace__fprintf_thread_summary(trace, trace->output);
2532
6810fc91
DA		 2533out:
2534 perf_session__delete(session);
2535
2536 return err;
2537}
2538
1302d88e
ACM		 2539static size_t trace__fprintf_threads_header(FILE *fp)
2540{
2541 size_t printed;
2542
99ff7150 2543 printed = fprintf(fp, "\n Summary of events:\n\n");
bf2575c1
DA		 2544
2545 return printed;
2546}
2547
2548static size_t thread__dump_stats(struct thread_trace *ttrace,
2549 struct trace *trace, FILE *fp)
2550{
2551 struct stats *stats;
2552 size_t printed = 0;
2553 struct syscall *sc;
2554 struct int_node *inode = intlist__first(ttrace->syscall_stats);
2555
2556 if (inode == NULL)
2557 return 0;
2558
2559 printed += fprintf(fp, "\n");
2560
27a778b5
PE		 2561 printed += fprintf(fp, " syscall calls min avg max stddev\n");
2562 printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
2563 printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");
99ff7150 2564
bf2575c1
DA		 2565 /* each int_node is a syscall */
2566 while (inode) {
2567 stats = inode->priv;
2568 if (stats) {
2569 double min = (double)(stats->min) / NSEC_PER_MSEC;
2570 double max = (double)(stats->max) / NSEC_PER_MSEC;
2571 double avg = avg_stats(stats);
2572 double pct;
2573 u64 n = (u64) stats->n;
2574
2575 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
2576 avg /= NSEC_PER_MSEC;
2577
2578 sc = &trace->syscalls.table[inode->i];
99ff7150 2579 printed += fprintf(fp, " %-15s", sc->name);
27a778b5 2580 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
7f7a4138 2581 n, min, avg);
27a778b5 2582 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
bf2575c1
DA		 2583 }
2584
2585 inode = intlist__next(inode);
2586 }
2587
2588 printed += fprintf(fp, "\n\n");
1302d88e
ACM		 2589
2590 return printed;
2591}
2592
896cbb56
DA		 2593/* struct used to pass data to per-thread function */
2594struct summary_data {
2595 FILE *fp;
2596 struct trace *trace;
2597 size_t printed;
2598};
2599
2600static int trace__fprintf_one_thread(struct thread *thread, void *priv)
2601{
2602 struct summary_data *data = priv;
2603 FILE *fp = data->fp;
2604 size_t printed = data->printed;
2605 struct trace *trace = data->trace;
89dceb22 2606 struct thread_trace *ttrace = thread__priv(thread);
896cbb56
DA		 2607 double ratio;
2608
2609 if (ttrace == NULL)
2610 return 0;
2611
2612 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
2613
15e65c69 2614 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
99ff7150 2615 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
15e65c69 2616 printed += fprintf(fp, "%.1f%%", ratio);
a2ea67d7
SF		 2617 if (ttrace->pfmaj)
2618 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
2619 if (ttrace->pfmin)
2620 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
99ff7150 2621 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
bf2575c1 2622 printed += thread__dump_stats(ttrace, trace, fp);
896cbb56
DA		 2623
2624 data->printed += printed;
2625
2626 return 0;
2627}
2628
1302d88e
ACM		 2629static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
2630{
896cbb56
DA		 2631 struct summary_data data = {
2632 .fp = fp,
2633 .trace = trace
2634 };
2635 data.printed = trace__fprintf_threads_header(fp);
1302d88e 2636
896cbb56
DA		 2637 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
2638
2639 return data.printed;
1302d88e
ACM		 2640}
2641
ae9ed035
ACM		 2642static int trace__set_duration(const struct option *opt, const char *str,
2643 int unset __maybe_unused)
2644{
2645 struct trace *trace = opt->value;
2646
2647 trace->duration_filter = atof(str);
2648 return 0;
2649}
2650
f078c385
ACM		 2651static int trace__set_filter_pids(const struct option *opt, const char *str,
2652 int unset __maybe_unused)
2653{
2654 int ret = -1;
2655 size_t i;
2656 struct trace *trace = opt->value;
2657 /*
2658 * FIXME: introduce a intarray class, plain parse csv and create a
2659 * { int nr, int entries[] } struct...
2660 */
2661 struct intlist *list = intlist__new(str);
2662
2663 if (list == NULL)
2664 return -1;
2665
2666 i = trace->filter_pids.nr = intlist__nr_entries(list) + 1;
2667 trace->filter_pids.entries = calloc(i, sizeof(pid_t));
2668
2669 if (trace->filter_pids.entries == NULL)
2670 goto out;
2671
2672 trace->filter_pids.entries[0] = getpid();
2673
2674 for (i = 1; i < trace->filter_pids.nr; ++i)
2675 trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i;
2676
2677 intlist__delete(list);
2678 ret = 0;
2679out:
2680 return ret;
2681}
2682
c24ff998
ACM		 2683static int trace__open_output(struct trace *trace, const char *filename)
2684{
2685 struct stat st;
2686
2687 if (!stat(filename, &st) && st.st_size) {
2688 char oldname[PATH_MAX];
2689
2690 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
2691 unlink(oldname);
2692 rename(filename, oldname);
2693 }
2694
2695 trace->output = fopen(filename, "w");
2696
2697 return trace->output == NULL ? -errno : 0;
2698}
2699
598d02c5
SF		 2700static int parse_pagefaults(const struct option *opt, const char *str,
2701 int unset __maybe_unused)
2702{
2703 int *trace_pgfaults = opt->value;
2704
2705 if (strcmp(str, "all") == 0)
2706 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
2707 else if (strcmp(str, "maj") == 0)
2708 *trace_pgfaults |= TRACE_PFMAJ;
2709 else if (strcmp(str, "min") == 0)
2710 *trace_pgfaults |= TRACE_PFMIN;
2711 else
2712 return -1;
2713
2714 return 0;
2715}
2716
14a052df
ACM		 2717static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler)
2718{
2719 struct perf_evsel *evsel;
2720
2721 evlist__for_each(evlist, evsel)
2722 evsel->handler = handler;
2723}
2724
514f1c67
ACM		 2725int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
2726{
6fdd9cb7 2727 const char *trace_usage[] = {
f15eb531
NK		 2728 "perf trace [<options>] [<command>]",
2729 "perf trace [<options>] -- <command> [<options>]",
5e2485b1
DA		 2730 "perf trace record [<options>] [<command>]",
2731 "perf trace record [<options>] -- <command> [<options>]",
514f1c67
ACM		 2732 NULL
2733 };
2734 struct trace trace = {
c522739d
ACM		 2735 .audit = {
2736 .machine = audit_detect_machine(),
2737 .open_id = audit_name_to_syscall("open", trace.audit.machine),
2738 },
514f1c67
ACM		 2739 .syscalls = {
2740 . max = -1,
2741 },
2742 .opts = {
2743 .target = {
2744 .uid = UINT_MAX,
2745 .uses_mmap = true,
2746 },
2747 .user_freq = UINT_MAX,
2748 .user_interval = ULLONG_MAX,
509051ea 2749 .no_buffering = true,
38d5447d 2750 .mmap_pages = UINT_MAX,
9d9cad76 2751 .proc_map_timeout = 500,
514f1c67 2752 },
c24ff998 2753 .output = stdout,
50c95cbd 2754 .show_comm = true,
e281a960 2755 .trace_syscalls = true,
514f1c67 2756 };
c24ff998 2757 const char *output_name = NULL;
2ae3a312 2758 const char *ev_qualifier_str = NULL;
514f1c67 2759 const struct option trace_options[] = {
14a052df
ACM		 2760 OPT_CALLBACK(0, "event", &trace.evlist, "event",
2761 "event selector. use 'perf list' to list available events",
2762 parse_events_option),
50c95cbd
ACM		 2763 OPT_BOOLEAN(0, "comm", &trace.show_comm,
2764 "show the thread COMM next to its id"),
c522739d 2765 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
d303e85a 2766 OPT_STRING('e', "expr", &ev_qualifier_str, "expr", "list of syscalls to trace"),
c24ff998 2767 OPT_STRING('o', "output", &output_name, "file", "output file name"),
6810fc91 2768 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
514f1c67
ACM		 2769 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
2770 "trace events on existing process id"),
ac9be8ee 2771 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
514f1c67 2772 "trace events on existing thread id"),
fa0e4ffe
ACM		 2773 OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
2774 "pids to filter (by the kernel)", trace__set_filter_pids),
ac9be8ee 2775 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
514f1c67 2776 "system-wide collection from all CPUs"),
ac9be8ee 2777 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
514f1c67 2778 "list of cpus to monitor"),
6810fc91 2779 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
514f1c67 2780 "child tasks do not inherit counters"),
994a1f78
JO		 2781 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
2782 "number of mmap data pages",
2783 perf_evlist__parse_mmap_pages),
ac9be8ee 2784 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
514f1c67 2785 "user to profile"),
ae9ed035
ACM		 2786 OPT_CALLBACK(0, "duration", &trace, "float",
2787 "show only events with duration > N.M ms",
2788 trace__set_duration),
1302d88e 2789 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
7c304ee0 2790 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
4bb09192
DA		 2791 OPT_BOOLEAN('T', "time", &trace.full_time,
2792 "Show full timestamp, not time relative to first start"),
fd2eabaf
DA		 2793 OPT_BOOLEAN('s', "summary", &trace.summary_only,
2794 "Show only syscall summary with statistics"),
2795 OPT_BOOLEAN('S', "with-summary", &trace.summary,
2796 "Show all syscalls and summary with statistics"),
598d02c5
SF		 2797 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
2798 "Trace pagefaults", parse_pagefaults, "maj"),
e281a960 2799 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
e366a6d8 2800 OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"),
9d9cad76
KL		 2801 OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout,
2802 "per thread proc mmap processing timeout in ms"),
514f1c67
ACM		 2803 OPT_END()
2804 };
6fdd9cb7 2805 const char * const trace_subcommands[] = { "record", NULL };
514f1c67 2806 int err;
32caf0d1 2807 char bf[BUFSIZ];
514f1c67 2808
4d08cb80
ACM		 2809 signal(SIGSEGV, sighandler_dump_stack);
2810 signal(SIGFPE, sighandler_dump_stack);
2811
14a052df 2812 trace.evlist = perf_evlist__new();
14a052df
ACM		 2813
2814 if (trace.evlist == NULL) {
2815 pr_err("Not enough memory to run!\n");
ff8f695c 2816 err = -ENOMEM;
14a052df
ACM		 2817 goto out;
2818 }
2819
6fdd9cb7
YS		 2820 argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
2821 trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
fd2eabaf 2822
598d02c5
SF		 2823 if (trace.trace_pgfaults) {
2824 trace.opts.sample_address = true;
2825 trace.opts.sample_time = true;
2826 }
2827
14a052df
ACM		 2828 if (trace.evlist->nr_entries > 0)
2829 evlist__set_evsel_handler(trace.evlist, trace__event_handler);
2830
1e28fe0a
SF		 2831 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
2832 return trace__record(&trace, argc-1, &argv[1]);
2833
2834 /* summary_only implies summary option, but don't overwrite summary if set */
2835 if (trace.summary_only)
2836 trace.summary = trace.summary_only;
2837
726f3234
ACM		 2838 if (!trace.trace_syscalls && !trace.trace_pgfaults &&
2839 trace.evlist->nr_entries == 0 /* Was --events used? */) {
e281a960
SF		 2840 pr_err("Please specify something to trace.\n");
2841 return -1;
2842 }
2843
c24ff998
ACM		 2844 if (output_name != NULL) {
2845 err = trace__open_output(&trace, output_name);
2846 if (err < 0) {
2847 perror("failed to create output file");
2848 goto out;
2849 }
2850 }
2851
2ae3a312 2852 if (ev_qualifier_str != NULL) {
b059efdf
ACM		 2853 const char *s = ev_qualifier_str;
2854
2855 trace.not_ev_qualifier = *s == '!';
2856 if (trace.not_ev_qualifier)
2857 ++s;
2858 trace.ev_qualifier = strlist__new(true, s);
2ae3a312 2859 if (trace.ev_qualifier == NULL) {
c24ff998
ACM		 2860 fputs("Not enough memory to parse event qualifier",
2861 trace.output);
2862 err = -ENOMEM;
2863 goto out_close;
2ae3a312
ACM		 2864 }
2865 }
2866
602ad878 2867 err = target__validate(&trace.opts.target);
32caf0d1 2868 if (err) {
602ad878 2869 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 2870 fprintf(trace.output, "%s", bf);
2871 goto out_close;
32caf0d1
NK		 2872 }
2873
602ad878 2874 err = target__parse_uid(&trace.opts.target);
514f1c67 2875 if (err) {
602ad878 2876 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 2877 fprintf(trace.output, "%s", bf);
2878 goto out_close;
514f1c67
ACM		 2879 }
2880
602ad878 2881 if (!argc && target__none(&trace.opts.target))
ee76120e
NK		 2882 trace.opts.target.system_wide = true;
2883
6810fc91
DA		 2884 if (input_name)
2885 err = trace__replay(&trace);
2886 else
2887 err = trace__run(&trace, argc, argv);
1302d88e 2888
c24ff998
ACM		 2889out_close:
2890 if (output_name != NULL)
2891 fclose(trace.output);
2892out:
1302d88e 2893 return err;
514f1c67 2894}
Linux kernel - Deliverables
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