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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[deliverable/linux.git] / tools / perf / builtin-trace.c
CommitLineData
a598bb5e
ACM		 1/*
2 * builtin-trace.c
3 *
4 * Builtin 'trace' command:
5 *
6 * Display a continuously updated trace of any workload, CPU, specific PID,
7 * system wide, etc. Default format is loosely strace like, but any other
8 * event may be specified using --event.
9 *
10 * Copyright (C) 2012, 2013, 2014, 2015 Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
11 *
12 * Initially based on the 'trace' prototype by Thomas Gleixner:
13 *
14 * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'")
15 *
16 * Released under the GPL v2. (and only v2, not any later version)
17 */
18
4e319027 19#include <traceevent/event-parse.h>
988bdb31 20#include <api/fs/tracing_path.h>
514f1c67 21#include "builtin.h"
752fde44 22#include "util/color.h"
7c304ee0 23#include "util/debug.h"
514f1c67 24#include "util/evlist.h"
4b6ab94e 25#include <subcmd/exec-cmd.h>
752fde44 26#include "util/machine.h"
6810fc91 27#include "util/session.h"
752fde44 28#include "util/thread.h"
4b6ab94e 29#include <subcmd/parse-options.h>
2ae3a312 30#include "util/strlist.h"
bdc89661 31#include "util/intlist.h"
514f1c67 32#include "util/thread_map.h"
bf2575c1 33#include "util/stat.h"
97978b3e 34#include "trace-event.h"
9aca7f17 35#include "util/parse-events.h"
ba504235 36#include "util/bpf-loader.h"
514f1c67
ACM		 37
38#include <libaudit.h>
39#include <stdlib.h>
ae685380 40#include <sys/mman.h>
f9da0b0c 41#include <linux/futex.h>
8dd2a131 42#include <linux/err.h>
514f1c67 43
456857bd
IM		 44/* For older distros: */
45#ifndef MAP_STACK
46# define MAP_STACK 0x20000
47#endif
48
49#ifndef MADV_HWPOISON
50# define MADV_HWPOISON 100
a598bb5e 51
456857bd
IM		 52#endif
53
54#ifndef MADV_MERGEABLE
55# define MADV_MERGEABLE 12
56#endif
57
58#ifndef MADV_UNMERGEABLE
59# define MADV_UNMERGEABLE 13
60#endif
61
79d26a6a
BH		 62#ifndef EFD_SEMAPHORE
63# define EFD_SEMAPHORE 1
64#endif
65
c188e7ac
ACM		 66#ifndef EFD_NONBLOCK
67# define EFD_NONBLOCK 00004000
68#endif
69
70#ifndef EFD_CLOEXEC
71# define EFD_CLOEXEC 02000000
72#endif
73
74#ifndef O_CLOEXEC
75# define O_CLOEXEC 02000000
76#endif
77
78#ifndef SOCK_DCCP
79# define SOCK_DCCP 6
80#endif
81
82#ifndef SOCK_CLOEXEC
83# define SOCK_CLOEXEC 02000000
84#endif
85
86#ifndef SOCK_NONBLOCK
87# define SOCK_NONBLOCK 00004000
88#endif
89
90#ifndef MSG_CMSG_CLOEXEC
91# define MSG_CMSG_CLOEXEC 0x40000000
92#endif
93
a1c2552d
ACM		 94#ifndef PERF_FLAG_FD_NO_GROUP
95# define PERF_FLAG_FD_NO_GROUP (1UL << 0)
96#endif
97
98#ifndef PERF_FLAG_FD_OUTPUT
99# define PERF_FLAG_FD_OUTPUT (1UL << 1)
100#endif
101
102#ifndef PERF_FLAG_PID_CGROUP
103# define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */
104#endif
105
106#ifndef PERF_FLAG_FD_CLOEXEC
107# define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */
108#endif
109
110
77170988
ACM		 111struct tp_field {
112 int offset;
113 union {
114 u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
115 void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
116 };
117};
118
119#define TP_UINT_FIELD(bits) \
120static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
121{ \
55d43bca
DA		 122 u##bits value; \
123 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
124 return value; \
77170988
ACM		 125}
126
127TP_UINT_FIELD(8);
128TP_UINT_FIELD(16);
129TP_UINT_FIELD(32);
130TP_UINT_FIELD(64);
131
132#define TP_UINT_FIELD__SWAPPED(bits) \
133static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
134{ \
55d43bca
DA		 135 u##bits value; \
136 memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \
77170988
ACM		 137 return bswap_##bits(value);\
138}
139
140TP_UINT_FIELD__SWAPPED(16);
141TP_UINT_FIELD__SWAPPED(32);
142TP_UINT_FIELD__SWAPPED(64);
143
144static int tp_field__init_uint(struct tp_field *field,
145 struct format_field *format_field,
146 bool needs_swap)
147{
148 field->offset = format_field->offset;
149
150 switch (format_field->size) {
151 case 1:
152 field->integer = tp_field__u8;
153 break;
154 case 2:
155 field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
156 break;
157 case 4:
158 field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
159 break;
160 case 8:
161 field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
162 break;
163 default:
164 return -1;
165 }
166
167 return 0;
168}
169
170static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
171{
172 return sample->raw_data + field->offset;
173}
174
175static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
176{
177 field->offset = format_field->offset;
178 field->pointer = tp_field__ptr;
179 return 0;
180}
181
182struct syscall_tp {
183 struct tp_field id;
184 union {
185 struct tp_field args, ret;
186 };
187};
188
189static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
190 struct tp_field *field,
191 const char *name)
192{
193 struct format_field *format_field = perf_evsel__field(evsel, name);
194
195 if (format_field == NULL)
196 return -1;
197
198 return tp_field__init_uint(field, format_field, evsel->needs_swap);
199}
200
201#define perf_evsel__init_sc_tp_uint_field(evsel, name) \
202 ({ struct syscall_tp *sc = evsel->priv;\
203 perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
204
205static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
206 struct tp_field *field,
207 const char *name)
208{
209 struct format_field *format_field = perf_evsel__field(evsel, name);
210
211 if (format_field == NULL)
212 return -1;
213
214 return tp_field__init_ptr(field, format_field);
215}
216
217#define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
218 ({ struct syscall_tp *sc = evsel->priv;\
219 perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
220
221static void perf_evsel__delete_priv(struct perf_evsel *evsel)
222{
04662523 223 zfree(&evsel->priv);
77170988
ACM		 224 perf_evsel__delete(evsel);
225}
226
96695d44
NK		 227static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
228{
229 evsel->priv = malloc(sizeof(struct syscall_tp));
230 if (evsel->priv != NULL) {
231 if (perf_evsel__init_sc_tp_uint_field(evsel, id))
232 goto out_delete;
233
234 evsel->handler = handler;
235 return 0;
236 }
237
238 return -ENOMEM;
239
240out_delete:
04662523 241 zfree(&evsel->priv);
96695d44
NK		 242 return -ENOENT;
243}
244
ef503831 245static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
77170988 246{
ef503831 247 struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
77170988 248
9aca7f17 249 /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
8dd2a131 250 if (IS_ERR(evsel))
9aca7f17
DA		 251 evsel = perf_evsel__newtp("syscalls", direction);
252
8dd2a131
JO		 253 if (IS_ERR(evsel))
254 return NULL;
255
256 if (perf_evsel__init_syscall_tp(evsel, handler))
257 goto out_delete;
77170988
ACM		 258
259 return evsel;
260
261out_delete:
262 perf_evsel__delete_priv(evsel);
263 return NULL;
264}
265
266#define perf_evsel__sc_tp_uint(evsel, name, sample) \
267 ({ struct syscall_tp *fields = evsel->priv; \
268 fields->name.integer(&fields->name, sample); })
269
270#define perf_evsel__sc_tp_ptr(evsel, name, sample) \
271 ({ struct syscall_tp *fields = evsel->priv; \
272 fields->name.pointer(&fields->name, sample); })
273
01533e97
ACM		 274struct syscall_arg {
275 unsigned long val;
75b757ca
ACM		 276 struct thread *thread;
277 struct trace *trace;
1f115cb7 278 void *parm;
01533e97
ACM		 279 u8 idx;
280 u8 mask;
281};
282
1f115cb7 283struct strarray {
03e3adc9 284 int offset;
1f115cb7
ACM		 285 int nr_entries;
286 const char **entries;
287};
288
289#define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
290 .nr_entries = ARRAY_SIZE(array), \
291 .entries = array, \
292}
293
03e3adc9
ACM		 294#define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
295 .offset = off, \
296 .nr_entries = ARRAY_SIZE(array), \
297 .entries = array, \
298}
299
975b7c2f
ACM		 300static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
301 const char *intfmt,
302 struct syscall_arg *arg)
1f115cb7 303{
1f115cb7 304 struct strarray *sa = arg->parm;
03e3adc9 305 int idx = arg->val - sa->offset;
1f115cb7
ACM		 306
307 if (idx < 0 || idx >= sa->nr_entries)
975b7c2f 308 return scnprintf(bf, size, intfmt, arg->val);
1f115cb7
ACM		 309
310 return scnprintf(bf, size, "%s", sa->entries[idx]);
311}
312
975b7c2f
ACM		 313static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
314 struct syscall_arg *arg)
315{
316 return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
317}
318
1f115cb7
ACM		 319#define SCA_STRARRAY syscall_arg__scnprintf_strarray
320
844ae5b4
ACM		 321#if defined(__i386__) || defined(__x86_64__)
322/*
323 * FIXME: Make this available to all arches as soon as the ioctl beautifier
324 * gets rewritten to support all arches.
325 */
78645cf3
ACM		 326static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
327 struct syscall_arg *arg)
328{
329 return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg);
330}
331
332#define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
844ae5b4 333#endif /* defined(__i386__) || defined(__x86_64__) */
78645cf3 334
75b757ca
ACM		 335static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
336 struct syscall_arg *arg);
337
338#define SCA_FD syscall_arg__scnprintf_fd
339
340static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
341 struct syscall_arg *arg)
342{
343 int fd = arg->val;
344
345 if (fd == AT_FDCWD)
346 return scnprintf(bf, size, "CWD");
347
348 return syscall_arg__scnprintf_fd(bf, size, arg);
349}
350
351#define SCA_FDAT syscall_arg__scnprintf_fd_at
352
353static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
354 struct syscall_arg *arg);
355
356#define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
357
6e7eeb51 358static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
01533e97 359 struct syscall_arg *arg)
13d4ff3e 360{
01533e97 361 return scnprintf(bf, size, "%#lx", arg->val);
13d4ff3e
ACM		 362}
363
beccb2b5
ACM		 364#define SCA_HEX syscall_arg__scnprintf_hex
365
a1c2552d
ACM		 366static size_t syscall_arg__scnprintf_int(char *bf, size_t size,
367 struct syscall_arg *arg)
368{
369 return scnprintf(bf, size, "%d", arg->val);
370}
371
372#define SCA_INT syscall_arg__scnprintf_int
373
6e7eeb51 374static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
01533e97 375 struct syscall_arg *arg)
ae685380 376{
01533e97 377 int printed = 0, prot = arg->val;
ae685380
ACM		 378
379 if (prot == PROT_NONE)
380 return scnprintf(bf, size, "NONE");
381#define P_MMAP_PROT(n) \
382 if (prot & PROT_##n) { \
383 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
384 prot &= ~PROT_##n; \
385 }
386
387 P_MMAP_PROT(EXEC);
388 P_MMAP_PROT(READ);
389 P_MMAP_PROT(WRITE);
390#ifdef PROT_SEM
391 P_MMAP_PROT(SEM);
392#endif
393 P_MMAP_PROT(GROWSDOWN);
394 P_MMAP_PROT(GROWSUP);
395#undef P_MMAP_PROT
396
397 if (prot)
398 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
399
400 return printed;
401}
402
403#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
404
6e7eeb51 405static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
01533e97 406 struct syscall_arg *arg)
941557e0 407{
01533e97 408 int printed = 0, flags = arg->val;
941557e0
ACM		 409
410#define P_MMAP_FLAG(n) \
411 if (flags & MAP_##n) { \
412 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
413 flags &= ~MAP_##n; \
414 }
415
416 P_MMAP_FLAG(SHARED);
417 P_MMAP_FLAG(PRIVATE);
41817815 418#ifdef MAP_32BIT
941557e0 419 P_MMAP_FLAG(32BIT);
41817815 420#endif
941557e0
ACM		 421 P_MMAP_FLAG(ANONYMOUS);
422 P_MMAP_FLAG(DENYWRITE);
423 P_MMAP_FLAG(EXECUTABLE);
424 P_MMAP_FLAG(FILE);
425 P_MMAP_FLAG(FIXED);
426 P_MMAP_FLAG(GROWSDOWN);
f2935f3e 427#ifdef MAP_HUGETLB
941557e0 428 P_MMAP_FLAG(HUGETLB);
f2935f3e 429#endif
941557e0
ACM		 430 P_MMAP_FLAG(LOCKED);
431 P_MMAP_FLAG(NONBLOCK);
432 P_MMAP_FLAG(NORESERVE);
433 P_MMAP_FLAG(POPULATE);
434 P_MMAP_FLAG(STACK);
435#ifdef MAP_UNINITIALIZED
436 P_MMAP_FLAG(UNINITIALIZED);
437#endif
438#undef P_MMAP_FLAG
439
440 if (flags)
441 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
442
443 return printed;
444}
445
446#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
447
86998dda
AS		 448static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
449 struct syscall_arg *arg)
450{
451 int printed = 0, flags = arg->val;
452
453#define P_MREMAP_FLAG(n) \
454 if (flags & MREMAP_##n) { \
455 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
456 flags &= ~MREMAP_##n; \
457 }
458
459 P_MREMAP_FLAG(MAYMOVE);
460#ifdef MREMAP_FIXED
461 P_MREMAP_FLAG(FIXED);
462#endif
463#undef P_MREMAP_FLAG
464
465 if (flags)
466 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
467
468 return printed;
469}
470
471#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
472
6e7eeb51 473static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
01533e97 474 struct syscall_arg *arg)
9e9716d1 475{
01533e97 476 int behavior = arg->val;
9e9716d1
ACM		 477
478 switch (behavior) {
479#define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
480 P_MADV_BHV(NORMAL);
481 P_MADV_BHV(RANDOM);
482 P_MADV_BHV(SEQUENTIAL);
483 P_MADV_BHV(WILLNEED);
484 P_MADV_BHV(DONTNEED);
485 P_MADV_BHV(REMOVE);
486 P_MADV_BHV(DONTFORK);
487 P_MADV_BHV(DOFORK);
488 P_MADV_BHV(HWPOISON);
489#ifdef MADV_SOFT_OFFLINE
490 P_MADV_BHV(SOFT_OFFLINE);
491#endif
492 P_MADV_BHV(MERGEABLE);
493 P_MADV_BHV(UNMERGEABLE);
f2935f3e 494#ifdef MADV_HUGEPAGE
9e9716d1 495 P_MADV_BHV(HUGEPAGE);
f2935f3e
DA		 496#endif
497#ifdef MADV_NOHUGEPAGE
9e9716d1 498 P_MADV_BHV(NOHUGEPAGE);
f2935f3e 499#endif
9e9716d1
ACM		 500#ifdef MADV_DONTDUMP
501 P_MADV_BHV(DONTDUMP);
502#endif
503#ifdef MADV_DODUMP
504 P_MADV_BHV(DODUMP);
505#endif
506#undef P_MADV_PHV
507 default: break;
508 }
509
510 return scnprintf(bf, size, "%#x", behavior);
511}
512
513#define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
514
5cea6ff2
ACM		 515static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
516 struct syscall_arg *arg)
517{
518 int printed = 0, op = arg->val;
519
520 if (op == 0)
521 return scnprintf(bf, size, "NONE");
522#define P_CMD(cmd) \
523 if ((op & LOCK_##cmd) == LOCK_##cmd) { \
524 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
525 op &= ~LOCK_##cmd; \
526 }
527
528 P_CMD(SH);
529 P_CMD(EX);
530 P_CMD(NB);
531 P_CMD(UN);
532 P_CMD(MAND);
533 P_CMD(RW);
534 P_CMD(READ);
535 P_CMD(WRITE);
536#undef P_OP
537
538 if (op)
539 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
540
541 return printed;
542}
543
544#define SCA_FLOCK syscall_arg__scnprintf_flock
545
01533e97 546static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
f9da0b0c
ACM		 547{
548 enum syscall_futex_args {
549 SCF_UADDR = (1 << 0),
550 SCF_OP = (1 << 1),
551 SCF_VAL = (1 << 2),
552 SCF_TIMEOUT = (1 << 3),
553 SCF_UADDR2 = (1 << 4),
554 SCF_VAL3 = (1 << 5),
555 };
01533e97 556 int op = arg->val;
f9da0b0c
ACM		 557 int cmd = op & FUTEX_CMD_MASK;
558 size_t printed = 0;
559
560 switch (cmd) {
561#define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n);
01533e97
ACM		 562 P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
563 P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
564 P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
565 P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break;
566 P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break;
567 P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break;
f9da0b0c 568 P_FUTEX_OP(WAKE_OP); break;
01533e97
ACM		 569 P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
570 P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
571 P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
572 P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break;
573 P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break;
f9da0b0c
ACM		 574 P_FUTEX_OP(WAIT_REQUEUE_PI); break;
575 default: printed = scnprintf(bf, size, "%#x", cmd); break;
576 }
577
578 if (op & FUTEX_PRIVATE_FLAG)
579 printed += scnprintf(bf + printed, size - printed, "|PRIV");
580
581 if (op & FUTEX_CLOCK_REALTIME)
582 printed += scnprintf(bf + printed, size - printed, "|CLKRT");
583
584 return printed;
585}
586
efe6b882
ACM		 587#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
588
729a7841
ACM		 589static const char *bpf_cmd[] = {
590 "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM",
591 "MAP_GET_NEXT_KEY", "PROG_LOAD",
592};
593static DEFINE_STRARRAY(bpf_cmd);
594
03e3adc9
ACM		 595static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
596static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
eac032c5 597
1f115cb7
ACM		 598static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
599static DEFINE_STRARRAY(itimers);
600
b62bee1b
ACM		 601static const char *keyctl_options[] = {
602 "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN",
603 "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ",
604 "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT",
605 "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT",
606 "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT",
607};
608static DEFINE_STRARRAY(keyctl_options);
609
efe6b882
ACM		 610static const char *whences[] = { "SET", "CUR", "END",
611#ifdef SEEK_DATA
612"DATA",
613#endif
614#ifdef SEEK_HOLE
615"HOLE",
616#endif
617};
618static DEFINE_STRARRAY(whences);
f9da0b0c 619
80f587d5
ACM		 620static const char *fcntl_cmds[] = {
621 "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
622 "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64",
623 "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX",
624 "F_GETOWNER_UIDS",
625};
626static DEFINE_STRARRAY(fcntl_cmds);
627
c045bf02
ACM		 628static const char *rlimit_resources[] = {
629 "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
630 "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
631 "RTTIME",
632};
633static DEFINE_STRARRAY(rlimit_resources);
634
eb5b1b14
ACM		 635static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
636static DEFINE_STRARRAY(sighow);
637
4f8c1b74
DA		 638static const char *clockid[] = {
639 "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
28ebb87c
ACM		 640 "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME",
641 "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI"
4f8c1b74
DA		 642};
643static DEFINE_STRARRAY(clockid);
644
e10bce81
ACM		 645static const char *socket_families[] = {
646 "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
647 "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
648 "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
649 "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
650 "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
651 "ALG", "NFC", "VSOCK",
652};
653static DEFINE_STRARRAY(socket_families);
654
a28b24b2
ACM		 655#ifndef SOCK_TYPE_MASK
656#define SOCK_TYPE_MASK 0xf
657#endif
658
659static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
660 struct syscall_arg *arg)
661{
662 size_t printed;
663 int type = arg->val,
664 flags = type & ~SOCK_TYPE_MASK;
665
666 type &= SOCK_TYPE_MASK;
667 /*
668 * Can't use a strarray, MIPS may override for ABI reasons.
669 */
670 switch (type) {
671#define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
672 P_SK_TYPE(STREAM);
673 P_SK_TYPE(DGRAM);
674 P_SK_TYPE(RAW);
675 P_SK_TYPE(RDM);
676 P_SK_TYPE(SEQPACKET);
677 P_SK_TYPE(DCCP);
678 P_SK_TYPE(PACKET);
679#undef P_SK_TYPE
680 default:
681 printed = scnprintf(bf, size, "%#x", type);
682 }
683
684#define P_SK_FLAG(n) \
685 if (flags & SOCK_##n) { \
686 printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
687 flags &= ~SOCK_##n; \
688 }
689
690 P_SK_FLAG(CLOEXEC);
691 P_SK_FLAG(NONBLOCK);
692#undef P_SK_FLAG
693
694 if (flags)
695 printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
696
697 return printed;
698}
699
700#define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
701
b2cc99fd
ACM		 702#ifndef MSG_PROBE
703#define MSG_PROBE 0x10
704#endif
b6e8f8f4
DA		 705#ifndef MSG_WAITFORONE
706#define MSG_WAITFORONE 0x10000
707#endif
b2cc99fd
ACM		 708#ifndef MSG_SENDPAGE_NOTLAST
709#define MSG_SENDPAGE_NOTLAST 0x20000
710#endif
711#ifndef MSG_FASTOPEN
712#define MSG_FASTOPEN 0x20000000
713#endif
714
715static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
716 struct syscall_arg *arg)
717{
718 int printed = 0, flags = arg->val;
719
720 if (flags == 0)
721 return scnprintf(bf, size, "NONE");
722#define P_MSG_FLAG(n) \
723 if (flags & MSG_##n) { \
724 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
725 flags &= ~MSG_##n; \
726 }
727
728 P_MSG_FLAG(OOB);
729 P_MSG_FLAG(PEEK);
730 P_MSG_FLAG(DONTROUTE);
731 P_MSG_FLAG(TRYHARD);
732 P_MSG_FLAG(CTRUNC);
733 P_MSG_FLAG(PROBE);
734 P_MSG_FLAG(TRUNC);
735 P_MSG_FLAG(DONTWAIT);
736 P_MSG_FLAG(EOR);
737 P_MSG_FLAG(WAITALL);
738 P_MSG_FLAG(FIN);
739 P_MSG_FLAG(SYN);
740 P_MSG_FLAG(CONFIRM);
741 P_MSG_FLAG(RST);
742 P_MSG_FLAG(ERRQUEUE);
743 P_MSG_FLAG(NOSIGNAL);
744 P_MSG_FLAG(MORE);
745 P_MSG_FLAG(WAITFORONE);
746 P_MSG_FLAG(SENDPAGE_NOTLAST);
747 P_MSG_FLAG(FASTOPEN);
748 P_MSG_FLAG(CMSG_CLOEXEC);
749#undef P_MSG_FLAG
750
751 if (flags)
752 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
753
754 return printed;
755}
756
757#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
758
51108999
ACM		 759static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
760 struct syscall_arg *arg)
761{
762 size_t printed = 0;
763 int mode = arg->val;
764
765 if (mode == F_OK) /* 0 */
766 return scnprintf(bf, size, "F");
767#define P_MODE(n) \
768 if (mode & n##_OK) { \
769 printed += scnprintf(bf + printed, size - printed, "%s", #n); \
770 mode &= ~n##_OK; \
771 }
772
773 P_MODE(R);
774 P_MODE(W);
775 P_MODE(X);
776#undef P_MODE
777
778 if (mode)
779 printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
780
781 return printed;
782}
783
784#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
785
f994592d
ACM		 786static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
787 struct syscall_arg *arg);
788
789#define SCA_FILENAME syscall_arg__scnprintf_filename
790
be65a89a 791static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
01533e97 792 struct syscall_arg *arg)
be65a89a 793{
01533e97 794 int printed = 0, flags = arg->val;
be65a89a
ACM		 795
796 if (!(flags & O_CREAT))
01533e97 797 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
be65a89a
ACM		 798
799 if (flags == 0)
800 return scnprintf(bf, size, "RDONLY");
801#define P_FLAG(n) \
802 if (flags & O_##n) { \
803 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
804 flags &= ~O_##n; \
805 }
806
807 P_FLAG(APPEND);
808 P_FLAG(ASYNC);
809 P_FLAG(CLOEXEC);
810 P_FLAG(CREAT);
811 P_FLAG(DIRECT);
812 P_FLAG(DIRECTORY);
813 P_FLAG(EXCL);
814 P_FLAG(LARGEFILE);
815 P_FLAG(NOATIME);
816 P_FLAG(NOCTTY);
817#ifdef O_NONBLOCK
818 P_FLAG(NONBLOCK);
819#elif O_NDELAY
820 P_FLAG(NDELAY);
821#endif
822#ifdef O_PATH
823 P_FLAG(PATH);
824#endif
825 P_FLAG(RDWR);
826#ifdef O_DSYNC
827 if ((flags & O_SYNC) == O_SYNC)
828 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC");
829 else {
830 P_FLAG(DSYNC);
831 }
832#else
833 P_FLAG(SYNC);
834#endif
835 P_FLAG(TRUNC);
836 P_FLAG(WRONLY);
837#undef P_FLAG
838
839 if (flags)
840 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
841
842 return printed;
843}
844
845#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
846
a1c2552d
ACM		 847static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size,
848 struct syscall_arg *arg)
849{
850 int printed = 0, flags = arg->val;
851
852 if (flags == 0)
853 return 0;
854
855#define P_FLAG(n) \
856 if (flags & PERF_FLAG_##n) { \
857 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
858 flags &= ~PERF_FLAG_##n; \
859 }
860
861 P_FLAG(FD_NO_GROUP);
862 P_FLAG(FD_OUTPUT);
863 P_FLAG(PID_CGROUP);
864 P_FLAG(FD_CLOEXEC);
865#undef P_FLAG
866
867 if (flags)
868 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
869
870 return printed;
871}
872
873#define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags
874
49af9e93
ACM		 875static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
876 struct syscall_arg *arg)
877{
878 int printed = 0, flags = arg->val;
879
880 if (flags == 0)
881 return scnprintf(bf, size, "NONE");
882#define P_FLAG(n) \
883 if (flags & EFD_##n) { \
884 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
885 flags &= ~EFD_##n; \
886 }
887
888 P_FLAG(SEMAPHORE);
889 P_FLAG(CLOEXEC);
890 P_FLAG(NONBLOCK);
891#undef P_FLAG
892
893 if (flags)
894 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
895
896 return printed;
897}
898
899#define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
900
46cce19b
ACM		 901static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
902 struct syscall_arg *arg)
903{
904 int printed = 0, flags = arg->val;
905
906#define P_FLAG(n) \
907 if (flags & O_##n) { \
908 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
909 flags &= ~O_##n; \
910 }
911
912 P_FLAG(CLOEXEC);
913 P_FLAG(NONBLOCK);
914#undef P_FLAG
915
916 if (flags)
917 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
918
919 return printed;
920}
921
922#define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
923
8bad5b0a
ACM		 924static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
925{
926 int sig = arg->val;
927
928 switch (sig) {
929#define P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n)
930 P_SIGNUM(HUP);
931 P_SIGNUM(INT);
932 P_SIGNUM(QUIT);
933 P_SIGNUM(ILL);
934 P_SIGNUM(TRAP);
935 P_SIGNUM(ABRT);
936 P_SIGNUM(BUS);
937 P_SIGNUM(FPE);
938 P_SIGNUM(KILL);
939 P_SIGNUM(USR1);
940 P_SIGNUM(SEGV);
941 P_SIGNUM(USR2);
942 P_SIGNUM(PIPE);
943 P_SIGNUM(ALRM);
944 P_SIGNUM(TERM);
8bad5b0a
ACM		 945 P_SIGNUM(CHLD);
946 P_SIGNUM(CONT);
947 P_SIGNUM(STOP);
948 P_SIGNUM(TSTP);
949 P_SIGNUM(TTIN);
950 P_SIGNUM(TTOU);
951 P_SIGNUM(URG);
952 P_SIGNUM(XCPU);
953 P_SIGNUM(XFSZ);
954 P_SIGNUM(VTALRM);
955 P_SIGNUM(PROF);
956 P_SIGNUM(WINCH);
957 P_SIGNUM(IO);
958 P_SIGNUM(PWR);
959 P_SIGNUM(SYS);
02c5bb4a
BH		 960#ifdef SIGEMT
961 P_SIGNUM(EMT);
962#endif
963#ifdef SIGSTKFLT
964 P_SIGNUM(STKFLT);
965#endif
966#ifdef SIGSWI
967 P_SIGNUM(SWI);
968#endif
8bad5b0a
ACM		 969 default: break;
970 }
971
972 return scnprintf(bf, size, "%#x", sig);
973}
974
975#define SCA_SIGNUM syscall_arg__scnprintf_signum
976
844ae5b4
ACM		 977#if defined(__i386__) || defined(__x86_64__)
978/*
979 * FIXME: Make this available to all arches.
980 */
78645cf3
ACM		 981#define TCGETS 0x5401
982
983static const char *tioctls[] = {
984 "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW",
985 "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL",
986 "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI",
987 "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC",
988 "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX",
989 "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO",
990 "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK",
991 "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2",
992 "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK",
993 "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG",
994 "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL",
995 [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG",
996 "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS",
997 "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI",
998 "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE",
999};
1000
1001static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
844ae5b4 1002#endif /* defined(__i386__) || defined(__x86_64__) */
78645cf3 1003
453350dd
ACM		 1004#define STRARRAY(arg, name, array) \
1005 .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
1006 .arg_parm = { [arg] = &strarray__##array, }
1007
514f1c67
ACM		 1008static struct syscall_fmt {
1009 const char *name;
aec1930b 1010 const char *alias;
01533e97 1011 size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
1f115cb7 1012 void *arg_parm[6];
514f1c67
ACM		 1013 bool errmsg;
1014 bool timeout;
04b34729 1015 bool hexret;
514f1c67 1016} syscall_fmts[] = {
51108999 1017 { .name = "access", .errmsg = true,
34221118
ACM		 1018 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */
1019 [1] = SCA_ACCMODE, /* mode */ }, },
aec1930b 1020 { .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
729a7841 1021 { .name = "bpf", .errmsg = true, STRARRAY(0, cmd, bpf_cmd), },
beccb2b5
ACM		 1022 { .name = "brk", .hexret = true,
1023 .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
34221118
ACM		 1024 { .name = "chdir", .errmsg = true,
1025 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
1026 { .name = "chmod", .errmsg = true,
1027 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
1028 { .name = "chroot", .errmsg = true,
1029 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
4f8c1b74 1030 { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), },
75b757ca 1031 { .name = "close", .errmsg = true,
48000a1a 1032 .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, },
a14bb860 1033 { .name = "connect", .errmsg = true, },
34221118
ACM		 1034 { .name = "creat", .errmsg = true,
1035 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1036 { .name = "dup", .errmsg = true,
48000a1a 1037 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1038 { .name = "dup2", .errmsg = true,
48000a1a 1039 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1040 { .name = "dup3", .errmsg = true,
48000a1a 1041 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd 1042 { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
49af9e93
ACM		 1043 { .name = "eventfd2", .errmsg = true,
1044 .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
75b757ca 1045 { .name = "faccessat", .errmsg = true,
34221118
ACM		 1046 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1047 [1] = SCA_FILENAME, /* filename */ }, },
75b757ca 1048 { .name = "fadvise64", .errmsg = true,
48000a1a 1049 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1050 { .name = "fallocate", .errmsg = true,
48000a1a 1051 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1052 { .name = "fchdir", .errmsg = true,
48000a1a 1053 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1054 { .name = "fchmod", .errmsg = true,
48000a1a 1055 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1056 { .name = "fchmodat", .errmsg = true,
090389b6
ACM		 1057 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
1058 [1] = SCA_FILENAME, /* filename */ }, },
75b757ca 1059 { .name = "fchown", .errmsg = true,
48000a1a 1060 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1061 { .name = "fchownat", .errmsg = true,
34221118
ACM		 1062 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
1063 [1] = SCA_FILENAME, /* filename */ }, },
75b757ca
ACM		 1064 { .name = "fcntl", .errmsg = true,
1065 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1066 [1] = SCA_STRARRAY, /* cmd */ },
1067 .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
1068 { .name = "fdatasync", .errmsg = true,
48000a1a 1069 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
5cea6ff2 1070 { .name = "flock", .errmsg = true,
75b757ca
ACM		 1071 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1072 [1] = SCA_FLOCK, /* cmd */ }, },
1073 { .name = "fsetxattr", .errmsg = true,
48000a1a 1074 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1075 { .name = "fstat", .errmsg = true, .alias = "newfstat",
48000a1a 1076 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1077 { .name = "fstatat", .errmsg = true, .alias = "newfstatat",
34221118
ACM		 1078 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1079 [1] = SCA_FILENAME, /* filename */ }, },
75b757ca 1080 { .name = "fstatfs", .errmsg = true,
48000a1a 1081 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1082 { .name = "fsync", .errmsg = true,
48000a1a 1083 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1084 { .name = "ftruncate", .errmsg = true,
48000a1a 1085 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
f9da0b0c
ACM		 1086 { .name = "futex", .errmsg = true,
1087 .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
75b757ca 1088 { .name = "futimesat", .errmsg = true,
090389b6
ACM		 1089 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
1090 [1] = SCA_FILENAME, /* filename */ }, },
75b757ca 1091 { .name = "getdents", .errmsg = true,
48000a1a 1092 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1093 { .name = "getdents64", .errmsg = true,
48000a1a 1094 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd
ACM		 1095 { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1096 { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
34221118
ACM		 1097 { .name = "getxattr", .errmsg = true,
1098 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
1099 { .name = "inotify_add_watch", .errmsg = true,
1100 .arg_scnprintf = { [1] = SCA_FILENAME, /* pathname */ }, },
beccb2b5 1101 { .name = "ioctl", .errmsg = true,
48000a1a 1102 .arg_scnprintf = { [0] = SCA_FD, /* fd */
844ae5b4
ACM		 1103#if defined(__i386__) || defined(__x86_64__)
1104/*
1105 * FIXME: Make this available to all arches.
1106 */
78645cf3
ACM		 1107 [1] = SCA_STRHEXARRAY, /* cmd */
1108 [2] = SCA_HEX, /* arg */ },
1109 .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, },
844ae5b4
ACM		 1110#else
1111 [2] = SCA_HEX, /* arg */ }, },
1112#endif
b62bee1b 1113 { .name = "keyctl", .errmsg = true, STRARRAY(0, option, keyctl_options), },
8bad5b0a
ACM		 1114 { .name = "kill", .errmsg = true,
1115 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
34221118
ACM		 1116 { .name = "lchown", .errmsg = true,
1117 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
1118 { .name = "lgetxattr", .errmsg = true,
1119 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1120 { .name = "linkat", .errmsg = true,
48000a1a 1121 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
34221118
ACM		 1122 { .name = "listxattr", .errmsg = true,
1123 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
090389b6
ACM		 1124 { .name = "llistxattr", .errmsg = true,
1125 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
1126 { .name = "lremovexattr", .errmsg = true,
1127 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca
ACM		 1128 { .name = "lseek", .errmsg = true,
1129 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1130 [2] = SCA_STRARRAY, /* whence */ },
1131 .arg_parm = { [2] = &strarray__whences, /* whence */ }, },
34221118
ACM		 1132 { .name = "lsetxattr", .errmsg = true,
1133 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
090389b6
ACM		 1134 { .name = "lstat", .errmsg = true, .alias = "newlstat",
1135 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
34221118
ACM		 1136 { .name = "lsxattr", .errmsg = true,
1137 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
9e9716d1
ACM		 1138 { .name = "madvise", .errmsg = true,
1139 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1140 [2] = SCA_MADV_BHV, /* behavior */ }, },
34221118
ACM		 1141 { .name = "mkdir", .errmsg = true,
1142 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1143 { .name = "mkdirat", .errmsg = true,
34221118
ACM		 1144 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
1145 [1] = SCA_FILENAME, /* pathname */ }, },
1146 { .name = "mknod", .errmsg = true,
1147 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
75b757ca 1148 { .name = "mknodat", .errmsg = true,
090389b6
ACM		 1149 .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
1150 [1] = SCA_FILENAME, /* filename */ }, },
3d903aa7
ACM		 1151 { .name = "mlock", .errmsg = true,
1152 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
1153 { .name = "mlockall", .errmsg = true,
1154 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
beccb2b5 1155 { .name = "mmap", .hexret = true,
ae685380 1156 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
941557e0 1157 [2] = SCA_MMAP_PROT, /* prot */
73faab3a
NK		 1158 [3] = SCA_MMAP_FLAGS, /* flags */
1159 [4] = SCA_FD, /* fd */ }, },
beccb2b5 1160 { .name = "mprotect", .errmsg = true,
ae685380
ACM		 1161 .arg_scnprintf = { [0] = SCA_HEX, /* start */
1162 [2] = SCA_MMAP_PROT, /* prot */ }, },
090389b6
ACM		 1163 { .name = "mq_unlink", .errmsg = true,
1164 .arg_scnprintf = { [0] = SCA_FILENAME, /* u_name */ }, },
ae685380
ACM		 1165 { .name = "mremap", .hexret = true,
1166 .arg_scnprintf = { [0] = SCA_HEX, /* addr */
86998dda 1167 [3] = SCA_MREMAP_FLAGS, /* flags */
ae685380 1168 [4] = SCA_HEX, /* new_addr */ }, },
3d903aa7
ACM		 1169 { .name = "munlock", .errmsg = true,
1170 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
beccb2b5
ACM		 1171 { .name = "munmap", .errmsg = true,
1172 .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
75b757ca 1173 { .name = "name_to_handle_at", .errmsg = true,
48000a1a 1174 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
75b757ca 1175 { .name = "newfstatat", .errmsg = true,
34221118
ACM		 1176 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1177 [1] = SCA_FILENAME, /* filename */ }, },
be65a89a 1178 { .name = "open", .errmsg = true,
f994592d
ACM		 1179 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */
1180 [1] = SCA_OPEN_FLAGS, /* flags */ }, },
31cd3855 1181 { .name = "open_by_handle_at", .errmsg = true,
75b757ca
ACM		 1182 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1183 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
31cd3855 1184 { .name = "openat", .errmsg = true,
75b757ca 1185 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
34221118 1186 [1] = SCA_FILENAME, /* filename */
75b757ca 1187 [2] = SCA_OPEN_FLAGS, /* flags */ }, },
a1c2552d
ACM		 1188 { .name = "perf_event_open", .errmsg = true,
1189 .arg_scnprintf = { [1] = SCA_INT, /* pid */
1190 [2] = SCA_INT, /* cpu */
1191 [3] = SCA_FD, /* group_fd */
1192 [4] = SCA_PERF_FLAGS, /* flags */ }, },
46cce19b
ACM		 1193 { .name = "pipe2", .errmsg = true,
1194 .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, },
aec1930b
ACM		 1195 { .name = "poll", .errmsg = true, .timeout = true, },
1196 { .name = "ppoll", .errmsg = true, .timeout = true, },
75b757ca 1197 { .name = "pread", .errmsg = true, .alias = "pread64",
48000a1a 1198 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1199 { .name = "preadv", .errmsg = true, .alias = "pread",
48000a1a 1200 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
453350dd 1201 { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
75b757ca 1202 { .name = "pwrite", .errmsg = true, .alias = "pwrite64",
48000a1a 1203 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1204 { .name = "pwritev", .errmsg = true,
48000a1a 1205 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1206 { .name = "read", .errmsg = true,
48000a1a 1207 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
34221118
ACM		 1208 { .name = "readlink", .errmsg = true,
1209 .arg_scnprintf = { [0] = SCA_FILENAME, /* path */ }, },
75b757ca 1210 { .name = "readlinkat", .errmsg = true,
34221118
ACM		 1211 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1212 [1] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1213 { .name = "readv", .errmsg = true,
48000a1a 1214 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
b2cc99fd 1215 { .name = "recvfrom", .errmsg = true,
8d8c66a2
ACM		 1216 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1217 [3] = SCA_MSG_FLAGS, /* flags */ }, },
b2cc99fd 1218 { .name = "recvmmsg", .errmsg = true,
8d8c66a2
ACM		 1219 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1220 [3] = SCA_MSG_FLAGS, /* flags */ }, },
b2cc99fd 1221 { .name = "recvmsg", .errmsg = true,
8d8c66a2
ACM		 1222 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1223 [2] = SCA_MSG_FLAGS, /* flags */ }, },
34221118
ACM		 1224 { .name = "removexattr", .errmsg = true,
1225 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1226 { .name = "renameat", .errmsg = true,
48000a1a 1227 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
34221118
ACM		 1228 { .name = "rmdir", .errmsg = true,
1229 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
8bad5b0a
ACM		 1230 { .name = "rt_sigaction", .errmsg = true,
1231 .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
453350dd 1232 { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), },
8bad5b0a
ACM		 1233 { .name = "rt_sigqueueinfo", .errmsg = true,
1234 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
1235 { .name = "rt_tgsigqueueinfo", .errmsg = true,
1236 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
aec1930b 1237 { .name = "select", .errmsg = true, .timeout = true, },
b2cc99fd 1238 { .name = "sendmmsg", .errmsg = true,
8d8c66a2
ACM		 1239 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1240 [3] = SCA_MSG_FLAGS, /* flags */ }, },
b2cc99fd 1241 { .name = "sendmsg", .errmsg = true,
8d8c66a2
ACM		 1242 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1243 [2] = SCA_MSG_FLAGS, /* flags */ }, },
b2cc99fd 1244 { .name = "sendto", .errmsg = true,
8d8c66a2
ACM		 1245 .arg_scnprintf = { [0] = SCA_FD, /* fd */
1246 [3] = SCA_MSG_FLAGS, /* flags */ }, },
453350dd
ACM		 1247 { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), },
1248 { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
34221118
ACM		 1249 { .name = "setxattr", .errmsg = true,
1250 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
75b757ca 1251 { .name = "shutdown", .errmsg = true,
48000a1a 1252 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
e10bce81 1253 { .name = "socket", .errmsg = true,
a28b24b2
ACM		 1254 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1255 [1] = SCA_SK_TYPE, /* type */ },
07120aa5
ACM		 1256 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
1257 { .name = "socketpair", .errmsg = true,
1258 .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
1259 [1] = SCA_SK_TYPE, /* type */ },
e10bce81 1260 .arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
090389b6
ACM		 1261 { .name = "stat", .errmsg = true, .alias = "newstat",
1262 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
34221118
ACM		 1263 { .name = "statfs", .errmsg = true,
1264 .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
1265 { .name = "swapoff", .errmsg = true,
1266 .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, },
1267 { .name = "swapon", .errmsg = true,
1268 .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, },
75b757ca 1269 { .name = "symlinkat", .errmsg = true,
48000a1a 1270 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
8bad5b0a
ACM		 1271 { .name = "tgkill", .errmsg = true,
1272 .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
1273 { .name = "tkill", .errmsg = true,
1274 .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
34221118
ACM		 1275 { .name = "truncate", .errmsg = true,
1276 .arg_scnprintf = { [0] = SCA_FILENAME, /* path */ }, },
e5959683 1277 { .name = "uname", .errmsg = true, .alias = "newuname", },
75b757ca 1278 { .name = "unlinkat", .errmsg = true,
34221118
ACM		 1279 .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
1280 [1] = SCA_FILENAME, /* pathname */ }, },
1281 { .name = "utime", .errmsg = true,
1282 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
75b757ca 1283 { .name = "utimensat", .errmsg = true,
34221118
ACM		 1284 .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */
1285 [1] = SCA_FILENAME, /* filename */ }, },
1286 { .name = "utimes", .errmsg = true,
1287 .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
090389b6
ACM		 1288 { .name = "vmsplice", .errmsg = true,
1289 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1290 { .name = "write", .errmsg = true,
48000a1a 1291 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
75b757ca 1292 { .name = "writev", .errmsg = true,
48000a1a 1293 .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
514f1c67
ACM		 1294};
1295
1296static int syscall_fmt__cmp(const void *name, const void *fmtp)
1297{
1298 const struct syscall_fmt *fmt = fmtp;
1299 return strcmp(name, fmt->name);
1300}
1301
1302static struct syscall_fmt *syscall_fmt__find(const char *name)
1303{
1304 const int nmemb = ARRAY_SIZE(syscall_fmts);
1305 return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
1306}
1307
1308struct syscall {
1309 struct event_format *tp_format;
f208bd8d
ACM		 1310 int nr_args;
1311 struct format_field *args;
514f1c67 1312 const char *name;
5089f20e 1313 bool is_exit;
514f1c67 1314 struct syscall_fmt *fmt;
01533e97 1315 size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
1f115cb7 1316 void **arg_parm;
514f1c67
ACM		 1317};
1318
60c907ab
ACM		 1319static size_t fprintf_duration(unsigned long t, FILE *fp)
1320{
1321 double duration = (double)t / NSEC_PER_MSEC;
1322 size_t printed = fprintf(fp, "(");
1323
1324 if (duration >= 1.0)
1325 printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration);
1326 else if (duration >= 0.01)
1327 printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration);
1328 else
1329 printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration);
c24ff998 1330 return printed + fprintf(fp, "): ");
60c907ab
ACM		 1331}
1332
f994592d
ACM		 1333/**
1334 * filename.ptr: The filename char pointer that will be vfs_getname'd
1335 * filename.entry_str_pos: Where to insert the string translated from
1336 * filename.ptr by the vfs_getname tracepoint/kprobe.
1337 */
752fde44
ACM		 1338struct thread_trace {
1339 u64 entry_time;
1340 u64 exit_time;
1341 bool entry_pending;
efd5745e 1342 unsigned long nr_events;
a2ea67d7 1343 unsigned long pfmaj, pfmin;
752fde44 1344 char *entry_str;
1302d88e 1345 double runtime_ms;
f994592d
ACM		 1346 struct {
1347 unsigned long ptr;
7f4f8001
ACM		 1348 short int entry_str_pos;
1349 bool pending_open;
1350 unsigned int namelen;
1351 char *name;
f994592d 1352 } filename;
75b757ca
ACM		 1353 struct {
1354 int max;
1355 char **table;
1356 } paths;
bf2575c1
DA		 1357
1358 struct intlist *syscall_stats;
752fde44
ACM		 1359};
1360
1361static struct thread_trace *thread_trace__new(void)
1362{
75b757ca
ACM		 1363 struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace));
1364
1365 if (ttrace)
1366 ttrace->paths.max = -1;
1367
bf2575c1
DA		 1368 ttrace->syscall_stats = intlist__new(NULL);
1369
75b757ca 1370 return ttrace;
752fde44
ACM		 1371}
1372
c24ff998 1373static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
752fde44 1374{
efd5745e
ACM		 1375 struct thread_trace *ttrace;
1376
752fde44
ACM		 1377 if (thread == NULL)
1378 goto fail;
1379
89dceb22
NK		 1380 if (thread__priv(thread) == NULL)
1381 thread__set_priv(thread, thread_trace__new());
48000a1a 1382
89dceb22 1383 if (thread__priv(thread) == NULL)
752fde44
ACM		 1384 goto fail;
1385
89dceb22 1386 ttrace = thread__priv(thread);
efd5745e
ACM		 1387 ++ttrace->nr_events;
1388
1389 return ttrace;
752fde44 1390fail:
c24ff998 1391 color_fprintf(fp, PERF_COLOR_RED,
752fde44
ACM		 1392 "WARNING: not enough memory, dropping samples!\n");
1393 return NULL;
1394}
1395
598d02c5
SF		 1396#define TRACE_PFMAJ (1 << 0)
1397#define TRACE_PFMIN (1 << 1)
1398
e4d44e83
ACM		 1399static const size_t trace__entry_str_size = 2048;
1400
514f1c67 1401struct trace {
c24ff998 1402 struct perf_tool tool;
c522739d
ACM		 1403 struct {
1404 int machine;
1405 int open_id;
1406 } audit;
514f1c67
ACM		 1407 struct {
1408 int max;
1409 struct syscall *table;
c27366f0 1410 struct {
8b3ce757
ACM		 1411 struct perf_evsel *sys_enter,
1412 *sys_exit;
c27366f0 1413 } events;
514f1c67 1414 } syscalls;
b4006796 1415 struct record_opts opts;
14a052df 1416 struct perf_evlist *evlist;
8fb598e5 1417 struct machine *host;
e596663e 1418 struct thread *current;
752fde44 1419 u64 base_time;
c24ff998 1420 FILE *output;
efd5745e 1421 unsigned long nr_events;
b059efdf 1422 struct strlist *ev_qualifier;
8b3ce757
ACM		 1423 struct {
1424 size_t nr;
1425 int *entries;
1426 } ev_qualifier_ids;
bdc89661
DA		 1427 struct intlist *tid_list;
1428 struct intlist *pid_list;
f078c385
ACM		 1429 struct {
1430 size_t nr;
1431 pid_t *entries;
1432 } filter_pids;
98eafce6
ACM		 1433 double duration_filter;
1434 double runtime_ms;
1435 struct {
1436 u64 vfs_getname,
1437 proc_getname;
1438 } stats;
1439 bool not_ev_qualifier;
1440 bool live;
1441 bool full_time;
1302d88e 1442 bool sched;
752fde44 1443 bool multiple_threads;
bf2575c1 1444 bool summary;
fd2eabaf 1445 bool summary_only;
50c95cbd 1446 bool show_comm;
c522739d 1447 bool show_tool_stats;
e281a960 1448 bool trace_syscalls;
e366a6d8 1449 bool force;
08c98776 1450 bool vfs_getname;
598d02c5 1451 int trace_pgfaults;
514f1c67
ACM		 1452};
1453
97119f37 1454static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
75b757ca 1455{
89dceb22 1456 struct thread_trace *ttrace = thread__priv(thread);
75b757ca
ACM		 1457
1458 if (fd > ttrace->paths.max) {
1459 char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
1460
1461 if (npath == NULL)
1462 return -1;
1463
1464 if (ttrace->paths.max != -1) {
1465 memset(npath + ttrace->paths.max + 1, 0,
1466 (fd - ttrace->paths.max) * sizeof(char *));
1467 } else {
1468 memset(npath, 0, (fd + 1) * sizeof(char *));
1469 }
1470
1471 ttrace->paths.table = npath;
1472 ttrace->paths.max = fd;
1473 }
1474
1475 ttrace->paths.table[fd] = strdup(pathname);
1476
1477 return ttrace->paths.table[fd] != NULL ? 0 : -1;
1478}
1479
97119f37
ACM		 1480static int thread__read_fd_path(struct thread *thread, int fd)
1481{
1482 char linkname[PATH_MAX], pathname[PATH_MAX];
1483 struct stat st;
1484 int ret;
1485
1486 if (thread->pid_ == thread->tid) {
1487 scnprintf(linkname, sizeof(linkname),
1488 "/proc/%d/fd/%d", thread->pid_, fd);
1489 } else {
1490 scnprintf(linkname, sizeof(linkname),
1491 "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
1492 }
1493
1494 if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
1495 return -1;
1496
1497 ret = readlink(linkname, pathname, sizeof(pathname));
1498
1499 if (ret < 0 || ret > st.st_size)
1500 return -1;
1501
1502 pathname[ret] = '\0';
1503 return trace__set_fd_pathname(thread, fd, pathname);
1504}
1505
c522739d
ACM		 1506static const char *thread__fd_path(struct thread *thread, int fd,
1507 struct trace *trace)
75b757ca 1508{
89dceb22 1509 struct thread_trace *ttrace = thread__priv(thread);
75b757ca
ACM		 1510
1511 if (ttrace == NULL)
1512 return NULL;
1513
1514 if (fd < 0)
1515 return NULL;
1516
cdcd1e6b 1517 if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) {
c522739d
ACM		 1518 if (!trace->live)
1519 return NULL;
1520 ++trace->stats.proc_getname;
cdcd1e6b 1521 if (thread__read_fd_path(thread, fd))
c522739d
ACM		 1522 return NULL;
1523 }
75b757ca
ACM		 1524
1525 return ttrace->paths.table[fd];
1526}
1527
1528static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
1529 struct syscall_arg *arg)
1530{
1531 int fd = arg->val;
1532 size_t printed = scnprintf(bf, size, "%d", fd);
c522739d 1533 const char *path = thread__fd_path(arg->thread, fd, arg->trace);
75b757ca
ACM		 1534
1535 if (path)
1536 printed += scnprintf(bf + printed, size - printed, "<%s>", path);
1537
1538 return printed;
1539}
1540
1541static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
1542 struct syscall_arg *arg)
1543{
1544 int fd = arg->val;
1545 size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
89dceb22 1546 struct thread_trace *ttrace = thread__priv(arg->thread);
75b757ca 1547
04662523
ACM		 1548 if (ttrace && fd >= 0 && fd <= ttrace->paths.max)
1549 zfree(&ttrace->paths.table[fd]);
75b757ca
ACM		 1550
1551 return printed;
1552}
1553
f994592d
ACM		 1554static void thread__set_filename_pos(struct thread *thread, const char *bf,
1555 unsigned long ptr)
1556{
1557 struct thread_trace *ttrace = thread__priv(thread);
1558
1559 ttrace->filename.ptr = ptr;
1560 ttrace->filename.entry_str_pos = bf - ttrace->entry_str;
1561}
1562
1563static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
1564 struct syscall_arg *arg)
1565{
1566 unsigned long ptr = arg->val;
1567
1568 if (!arg->trace->vfs_getname)
1569 return scnprintf(bf, size, "%#x", ptr);
1570
1571 thread__set_filename_pos(arg->thread, bf, ptr);
1572 return 0;
1573}
1574
ae9ed035
ACM		 1575static bool trace__filter_duration(struct trace *trace, double t)
1576{
1577 return t < (trace->duration_filter * NSEC_PER_MSEC);
1578}
1579
752fde44
ACM		 1580static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
1581{
1582 double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC;
1583
60c907ab 1584 return fprintf(fp, "%10.3f ", ts);
752fde44
ACM		 1585}
1586
f15eb531 1587static bool done = false;
ba209f85 1588static bool interrupted = false;
f15eb531 1589
ba209f85 1590static void sig_handler(int sig)
f15eb531
NK		 1591{
1592 done = true;
ba209f85 1593 interrupted = sig == SIGINT;
f15eb531
NK		 1594}
1595
752fde44 1596static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
60c907ab 1597 u64 duration, u64 tstamp, FILE *fp)
752fde44
ACM		 1598{
1599 size_t printed = trace__fprintf_tstamp(trace, tstamp, fp);
60c907ab 1600 printed += fprintf_duration(duration, fp);
752fde44 1601
50c95cbd
ACM		 1602 if (trace->multiple_threads) {
1603 if (trace->show_comm)
1902efe7 1604 printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
38051234 1605 printed += fprintf(fp, "%d ", thread->tid);
50c95cbd 1606 }
752fde44
ACM		 1607
1608 return printed;
1609}
1610
c24ff998 1611static int trace__process_event(struct trace *trace, struct machine *machine,
162f0bef 1612 union perf_event *event, struct perf_sample *sample)
752fde44
ACM		 1613{
1614 int ret = 0;
1615
1616 switch (event->header.type) {
1617 case PERF_RECORD_LOST:
c24ff998 1618 color_fprintf(trace->output, PERF_COLOR_RED,
752fde44 1619 "LOST %" PRIu64 " events!\n", event->lost.lost);
162f0bef 1620 ret = machine__process_lost_event(machine, event, sample);
752fde44 1621 default:
162f0bef 1622 ret = machine__process_event(machine, event, sample);
752fde44
ACM		 1623 break;
1624 }
1625
1626 return ret;
1627}
1628
c24ff998 1629static int trace__tool_process(struct perf_tool *tool,
752fde44 1630 union perf_event *event,
162f0bef 1631 struct perf_sample *sample,
752fde44
ACM		 1632 struct machine *machine)
1633{
c24ff998 1634 struct trace *trace = container_of(tool, struct trace, tool);
162f0bef 1635 return trace__process_event(trace, machine, event, sample);
752fde44
ACM		 1636}
1637
1638static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
1639{
0a7e6d1b 1640 int err = symbol__init(NULL);
752fde44
ACM		 1641
1642 if (err)
1643 return err;
1644
8fb598e5
DA		 1645 trace->host = machine__new_host();
1646 if (trace->host == NULL)
1647 return -ENOMEM;
752fde44 1648
959c2199 1649 if (trace_event__register_resolver(trace->host, machine__resolve_kernel_addr) < 0)
706c3da4
ACM		 1650 return -errno;
1651
a33fbd56 1652 err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
9d9cad76
KL		 1653 evlist->threads, trace__tool_process, false,
1654 trace->opts.proc_map_timeout);
752fde44
ACM		 1655 if (err)
1656 symbol__exit();
1657
1658 return err;
1659}
1660
13d4ff3e
ACM		 1661static int syscall__set_arg_fmts(struct syscall *sc)
1662{
1663 struct format_field *field;
1664 int idx = 0;
1665
f208bd8d 1666 sc->arg_scnprintf = calloc(sc->nr_args, sizeof(void *));
13d4ff3e
ACM		 1667 if (sc->arg_scnprintf == NULL)
1668 return -1;
1669
1f115cb7
ACM		 1670 if (sc->fmt)
1671 sc->arg_parm = sc->fmt->arg_parm;
1672
f208bd8d 1673 for (field = sc->args; field; field = field->next) {
beccb2b5
ACM		 1674 if (sc->fmt && sc->fmt->arg_scnprintf[idx])
1675 sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx];
1676 else if (field->flags & FIELD_IS_POINTER)
13d4ff3e
ACM		 1677 sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex;
1678 ++idx;
1679 }
1680
1681 return 0;
1682}
1683
514f1c67
ACM		 1684static int trace__read_syscall_info(struct trace *trace, int id)
1685{
1686 char tp_name[128];
1687 struct syscall *sc;
c522739d 1688 const char *name = audit_syscall_to_name(id, trace->audit.machine);
3a531260
ACM		 1689
1690 if (name == NULL)
1691 return -1;
514f1c67
ACM		 1692
1693 if (id > trace->syscalls.max) {
1694 struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc));
1695
1696 if (nsyscalls == NULL)
1697 return -1;
1698
1699 if (trace->syscalls.max != -1) {
1700 memset(nsyscalls + trace->syscalls.max + 1, 0,
1701 (id - trace->syscalls.max) * sizeof(*sc));
1702 } else {
1703 memset(nsyscalls, 0, (id + 1) * sizeof(*sc));
1704 }
1705
1706 trace->syscalls.table = nsyscalls;
1707 trace->syscalls.max = id;
1708 }
1709
1710 sc = trace->syscalls.table + id;
3a531260 1711 sc->name = name;
2ae3a312 1712
3a531260 1713 sc->fmt = syscall_fmt__find(sc->name);
514f1c67 1714
aec1930b 1715 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
97978b3e 1716 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
aec1930b 1717
8dd2a131 1718 if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) {
aec1930b 1719 snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);
97978b3e 1720 sc->tp_format = trace_event__tp_format("syscalls", tp_name);
aec1930b 1721 }
514f1c67 1722
8dd2a131 1723 if (IS_ERR(sc->tp_format))
13d4ff3e
ACM		 1724 return -1;
1725
f208bd8d
ACM		 1726 sc->args = sc->tp_format->format.fields;
1727 sc->nr_args = sc->tp_format->format.nr_fields;
c42de706
TS		 1728 /*
1729 * We need to check and discard the first variable '__syscall_nr'
1730 * or 'nr' that mean the syscall number. It is needless here.
1731 * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels.
1732 */
1733 if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) {
f208bd8d
ACM		 1734 sc->args = sc->args->next;
1735 --sc->nr_args;
1736 }
1737
5089f20e
ACM		 1738 sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit");
1739
13d4ff3e 1740 return syscall__set_arg_fmts(sc);
514f1c67
ACM		 1741}
1742
d0cc439b
ACM		 1743static int trace__validate_ev_qualifier(struct trace *trace)
1744{
8b3ce757 1745 int err = 0, i;
d0cc439b
ACM		 1746 struct str_node *pos;
1747
8b3ce757
ACM		 1748 trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier);
1749 trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr *
1750 sizeof(trace->ev_qualifier_ids.entries[0]));
1751
1752 if (trace->ev_qualifier_ids.entries == NULL) {
1753 fputs("Error:\tNot enough memory for allocating events qualifier ids\n",
1754 trace->output);
1755 err = -EINVAL;
1756 goto out;
1757 }
1758
1759 i = 0;
1760
d0cc439b
ACM		 1761 strlist__for_each(pos, trace->ev_qualifier) {
1762 const char *sc = pos->s;
8b3ce757 1763 int id = audit_name_to_syscall(sc, trace->audit.machine);
d0cc439b 1764
8b3ce757 1765 if (id < 0) {
d0cc439b
ACM		 1766 if (err == 0) {
1767 fputs("Error:\tInvalid syscall ", trace->output);
1768 err = -EINVAL;
1769 } else {
1770 fputs(", ", trace->output);
1771 }
1772
1773 fputs(sc, trace->output);
1774 }
8b3ce757
ACM		 1775
1776 trace->ev_qualifier_ids.entries[i++] = id;
d0cc439b
ACM		 1777 }
1778
1779 if (err < 0) {
1780 fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
1781 "\nHint:\tand: 'man syscalls'\n", trace->output);
8b3ce757
ACM		 1782 zfree(&trace->ev_qualifier_ids.entries);
1783 trace->ev_qualifier_ids.nr = 0;
d0cc439b 1784 }
8b3ce757 1785out:
d0cc439b
ACM		 1786 return err;
1787}
1788
55d43bca
DA		 1789/*
1790 * args is to be interpreted as a series of longs but we need to handle
1791 * 8-byte unaligned accesses. args points to raw_data within the event
1792 * and raw_data is guaranteed to be 8-byte unaligned because it is
1793 * preceded by raw_size which is a u32. So we need to copy args to a temp
1794 * variable to read it. Most notably this avoids extended load instructions
1795 * on unaligned addresses
1796 */
1797
752fde44 1798static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
55d43bca 1799 unsigned char *args, struct trace *trace,
75b757ca 1800 struct thread *thread)
514f1c67 1801{
514f1c67 1802 size_t printed = 0;
55d43bca
DA		 1803 unsigned char *p;
1804 unsigned long val;
514f1c67 1805
f208bd8d 1806 if (sc->args != NULL) {
514f1c67 1807 struct format_field *field;
01533e97
ACM		 1808 u8 bit = 1;
1809 struct syscall_arg arg = {
75b757ca
ACM		 1810 .idx = 0,
1811 .mask = 0,
1812 .trace = trace,
1813 .thread = thread,
01533e97 1814 };
6e7eeb51 1815
f208bd8d 1816 for (field = sc->args; field;
01533e97
ACM		 1817 field = field->next, ++arg.idx, bit <<= 1) {
1818 if (arg.mask & bit)
6e7eeb51 1819 continue;
55d43bca
DA		 1820
1821 /* special care for unaligned accesses */
1822 p = args + sizeof(unsigned long) * arg.idx;
1823 memcpy(&val, p, sizeof(val));
1824
4aa58232
ACM		 1825 /*
1826 * Suppress this argument if its value is zero and
1827 * and we don't have a string associated in an
1828 * strarray for it.
1829 */
55d43bca 1830 if (val == 0 &&
4aa58232
ACM		 1831 !(sc->arg_scnprintf &&
1832 sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
1833 sc->arg_parm[arg.idx]))
22ae5cf1
ACM		 1834 continue;
1835
752fde44 1836 printed += scnprintf(bf + printed, size - printed,
13d4ff3e 1837 "%s%s: ", printed ? ", " : "", field->name);
01533e97 1838 if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
55d43bca 1839 arg.val = val;
1f115cb7
ACM		 1840 if (sc->arg_parm)
1841 arg.parm = sc->arg_parm[arg.idx];
01533e97
ACM		 1842 printed += sc->arg_scnprintf[arg.idx](bf + printed,
1843 size - printed, &arg);
6e7eeb51 1844 } else {
13d4ff3e 1845 printed += scnprintf(bf + printed, size - printed,
55d43bca 1846 "%ld", val);
6e7eeb51 1847 }
514f1c67
ACM		 1848 }
1849 } else {
01533e97
ACM		 1850 int i = 0;
1851
514f1c67 1852 while (i < 6) {
55d43bca
DA		 1853 /* special care for unaligned accesses */
1854 p = args + sizeof(unsigned long) * i;
1855 memcpy(&val, p, sizeof(val));
752fde44
ACM		 1856 printed += scnprintf(bf + printed, size - printed,
1857 "%sarg%d: %ld",
55d43bca 1858 printed ? ", " : "", i, val);
514f1c67
ACM		 1859 ++i;
1860 }
1861 }
1862
1863 return printed;
1864}
1865
ba3d7dee 1866typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1867 union perf_event *event,
ba3d7dee
ACM		 1868 struct perf_sample *sample);
1869
1870static struct syscall *trace__syscall_info(struct trace *trace,
bf2575c1 1871 struct perf_evsel *evsel, int id)
ba3d7dee 1872{
ba3d7dee
ACM		 1873
1874 if (id < 0) {
adaa18bf
ACM		 1875
1876 /*
1877 * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried
1878 * before that, leaving at a higher verbosity level till that is
1879 * explained. Reproduced with plain ftrace with:
1880 *
1881 * echo 1 > /t/events/raw_syscalls/sys_exit/enable
1882 * grep "NR -1 " /t/trace_pipe
1883 *
1884 * After generating some load on the machine.
1885 */
1886 if (verbose > 1) {
1887 static u64 n;
1888 fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n",
1889 id, perf_evsel__name(evsel), ++n);
1890 }
ba3d7dee
ACM		 1891 return NULL;
1892 }
1893
1894 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) &&
1895 trace__read_syscall_info(trace, id))
1896 goto out_cant_read;
1897
1898 if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL))
1899 goto out_cant_read;
1900
1901 return &trace->syscalls.table[id];
1902
1903out_cant_read:
7c304ee0
ACM		 1904 if (verbose) {
1905 fprintf(trace->output, "Problems reading syscall %d", id);
1906 if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
1907 fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
1908 fputs(" information\n", trace->output);
1909 }
ba3d7dee
ACM		 1910 return NULL;
1911}
1912
bf2575c1
DA		 1913static void thread__update_stats(struct thread_trace *ttrace,
1914 int id, struct perf_sample *sample)
1915{
1916 struct int_node *inode;
1917 struct stats *stats;
1918 u64 duration = 0;
1919
1920 inode = intlist__findnew(ttrace->syscall_stats, id);
1921 if (inode == NULL)
1922 return;
1923
1924 stats = inode->priv;
1925 if (stats == NULL) {
1926 stats = malloc(sizeof(struct stats));
1927 if (stats == NULL)
1928 return;
1929 init_stats(stats);
1930 inode->priv = stats;
1931 }
1932
1933 if (ttrace->entry_time && sample->time > ttrace->entry_time)
1934 duration = sample->time - ttrace->entry_time;
1935
1936 update_stats(stats, duration);
1937}
1938
e596663e
ACM		 1939static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample)
1940{
1941 struct thread_trace *ttrace;
1942 u64 duration;
1943 size_t printed;
1944
1945 if (trace->current == NULL)
1946 return 0;
1947
1948 ttrace = thread__priv(trace->current);
1949
1950 if (!ttrace->entry_pending)
1951 return 0;
1952
1953 duration = sample->time - ttrace->entry_time;
1954
1955 printed = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output);
1956 printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str);
1957 ttrace->entry_pending = false;
1958
1959 return printed;
1960}
1961
ba3d7dee 1962static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 1963 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 1964 struct perf_sample *sample)
1965{
752fde44 1966 char *msg;
ba3d7dee 1967 void *args;
752fde44 1968 size_t printed = 0;
2ae3a312 1969 struct thread *thread;
b91fc39f 1970 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 1971 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 1972 struct thread_trace *ttrace;
1973
1974 if (sc == NULL)
1975 return -1;
ba3d7dee 1976
8fb598e5 1977 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 1978 ttrace = thread__trace(thread, trace->output);
2ae3a312 1979 if (ttrace == NULL)
b91fc39f 1980 goto out_put;
ba3d7dee 1981
77170988 1982 args = perf_evsel__sc_tp_ptr(evsel, args, sample);
752fde44
ACM		 1983
1984 if (ttrace->entry_str == NULL) {
e4d44e83 1985 ttrace->entry_str = malloc(trace__entry_str_size);
752fde44 1986 if (!ttrace->entry_str)
b91fc39f 1987 goto out_put;
752fde44
ACM		 1988 }
1989
13f22a2d 1990 if (!trace->summary_only)
6ebad5c1 1991 trace__printf_interrupted_entry(trace, sample);
e596663e 1992
752fde44
ACM		 1993 ttrace->entry_time = sample->time;
1994 msg = ttrace->entry_str;
e4d44e83 1995 printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name);
752fde44 1996
e4d44e83 1997 printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed,
75b757ca 1998 args, trace, thread);
752fde44 1999
5089f20e 2000 if (sc->is_exit) {
fd2eabaf 2001 if (!trace->duration_filter && !trace->summary_only) {
c24ff998
ACM		 2002 trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
2003 fprintf(trace->output, "%-70s\n", ttrace->entry_str);
ae9ed035 2004 }
7f4f8001 2005 } else {
752fde44 2006 ttrace->entry_pending = true;
7f4f8001
ACM		 2007 /* See trace__vfs_getname & trace__sys_exit */
2008 ttrace->filename.pending_open = false;
2009 }
ba3d7dee 2010
f3b623b8
ACM		 2011 if (trace->current != thread) {
2012 thread__put(trace->current);
2013 trace->current = thread__get(thread);
2014 }
b91fc39f
ACM		 2015 err = 0;
2016out_put:
2017 thread__put(thread);
2018 return err;
ba3d7dee
ACM		 2019}
2020
2021static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 2022 union perf_event *event __maybe_unused,
ba3d7dee
ACM		 2023 struct perf_sample *sample)
2024{
2c82c3ad 2025 long ret;
60c907ab 2026 u64 duration = 0;
2ae3a312 2027 struct thread *thread;
b91fc39f 2028 int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1;
bf2575c1 2029 struct syscall *sc = trace__syscall_info(trace, evsel, id);
2ae3a312
ACM		 2030 struct thread_trace *ttrace;
2031
2032 if (sc == NULL)
2033 return -1;
ba3d7dee 2034
8fb598e5 2035 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
c24ff998 2036 ttrace = thread__trace(thread, trace->output);
2ae3a312 2037 if (ttrace == NULL)
b91fc39f 2038 goto out_put;
ba3d7dee 2039
bf2575c1
DA		 2040 if (trace->summary)
2041 thread__update_stats(ttrace, id, sample);
2042
77170988 2043 ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
ba3d7dee 2044
7f4f8001
ACM		 2045 if (id == trace->audit.open_id && ret >= 0 && ttrace->filename.pending_open) {
2046 trace__set_fd_pathname(thread, ret, ttrace->filename.name);
2047 ttrace->filename.pending_open = false;
c522739d
ACM		 2048 ++trace->stats.vfs_getname;
2049 }
2050
752fde44
ACM		 2051 ttrace->exit_time = sample->time;
2052
ae9ed035 2053 if (ttrace->entry_time) {
60c907ab 2054 duration = sample->time - ttrace->entry_time;
ae9ed035
ACM		 2055 if (trace__filter_duration(trace, duration))
2056 goto out;
2057 } else if (trace->duration_filter)
2058 goto out;
60c907ab 2059
fd2eabaf
DA		 2060 if (trace->summary_only)
2061 goto out;
2062
c24ff998 2063 trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
752fde44
ACM		 2064
2065 if (ttrace->entry_pending) {
c24ff998 2066 fprintf(trace->output, "%-70s", ttrace->entry_str);
752fde44 2067 } else {
c24ff998
ACM		 2068 fprintf(trace->output, " ... [");
2069 color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued");
2070 fprintf(trace->output, "]: %s()", sc->name);
752fde44
ACM		 2071 }
2072
da3c9a44
ACM		 2073 if (sc->fmt == NULL) {
2074signed_print:
2c82c3ad 2075 fprintf(trace->output, ") = %ld", ret);
da3c9a44 2076 } else if (ret < 0 && sc->fmt->errmsg) {
942a91ed 2077 char bf[STRERR_BUFSIZE];
ba3d7dee
ACM		 2078 const char *emsg = strerror_r(-ret, bf, sizeof(bf)),
2079 *e = audit_errno_to_name(-ret);
2080
c24ff998 2081 fprintf(trace->output, ") = -1 %s %s", e, emsg);
da3c9a44 2082 } else if (ret == 0 && sc->fmt->timeout)
c24ff998 2083 fprintf(trace->output, ") = 0 Timeout");
04b34729 2084 else if (sc->fmt->hexret)
2c82c3ad 2085 fprintf(trace->output, ") = %#lx", ret);
ba3d7dee 2086 else
da3c9a44 2087 goto signed_print;
ba3d7dee 2088
c24ff998 2089 fputc('\n', trace->output);
ae9ed035 2090out:
752fde44 2091 ttrace->entry_pending = false;
b91fc39f
ACM		 2092 err = 0;
2093out_put:
2094 thread__put(thread);
2095 return err;
ba3d7dee
ACM		 2096}
2097
c522739d 2098static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 2099 union perf_event *event __maybe_unused,
c522739d
ACM		 2100 struct perf_sample *sample)
2101{
f994592d
ACM		 2102 struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
2103 struct thread_trace *ttrace;
2104 size_t filename_len, entry_str_len, to_move;
2105 ssize_t remaining_space;
2106 char *pos;
7f4f8001 2107 const char *filename = perf_evsel__rawptr(evsel, sample, "pathname");
f994592d
ACM		 2108
2109 if (!thread)
2110 goto out;
2111
2112 ttrace = thread__priv(thread);
2113 if (!ttrace)
2114 goto out;
2115
7f4f8001
ACM		 2116 filename_len = strlen(filename);
2117
2118 if (ttrace->filename.namelen < filename_len) {
2119 char *f = realloc(ttrace->filename.name, filename_len + 1);
2120
2121 if (f == NULL)
2122 goto out;
2123
2124 ttrace->filename.namelen = filename_len;
2125 ttrace->filename.name = f;
2126 }
2127
2128 strcpy(ttrace->filename.name, filename);
2129 ttrace->filename.pending_open = true;
2130
f994592d
ACM		 2131 if (!ttrace->filename.ptr)
2132 goto out;
2133
2134 entry_str_len = strlen(ttrace->entry_str);
2135 remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */
2136 if (remaining_space <= 0)
2137 goto out;
2138
f994592d
ACM		 2139 if (filename_len > (size_t)remaining_space) {
2140 filename += filename_len - remaining_space;
2141 filename_len = remaining_space;
2142 }
2143
2144 to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */
2145 pos = ttrace->entry_str + ttrace->filename.entry_str_pos;
2146 memmove(pos + filename_len, pos, to_move);
2147 memcpy(pos, filename, filename_len);
2148
2149 ttrace->filename.ptr = 0;
2150 ttrace->filename.entry_str_pos = 0;
2151out:
c522739d
ACM		 2152 return 0;
2153}
2154
1302d88e 2155static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
0c82adcf 2156 union perf_event *event __maybe_unused,
1302d88e
ACM		 2157 struct perf_sample *sample)
2158{
2159 u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
2160 double runtime_ms = (double)runtime / NSEC_PER_MSEC;
8fb598e5 2161 struct thread *thread = machine__findnew_thread(trace->host,
314add6b
AH		 2162 sample->pid,
2163 sample->tid);
c24ff998 2164 struct thread_trace *ttrace = thread__trace(thread, trace->output);
1302d88e
ACM		 2165
2166 if (ttrace == NULL)
2167 goto out_dump;
2168
2169 ttrace->runtime_ms += runtime_ms;
2170 trace->runtime_ms += runtime_ms;
b91fc39f 2171 thread__put(thread);
1302d88e
ACM		 2172 return 0;
2173
2174out_dump:
c24ff998 2175 fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n",
1302d88e
ACM		 2176 evsel->name,
2177 perf_evsel__strval(evsel, sample, "comm"),
2178 (pid_t)perf_evsel__intval(evsel, sample, "pid"),
2179 runtime,
2180 perf_evsel__intval(evsel, sample, "vruntime"));
b91fc39f 2181 thread__put(thread);
1302d88e
ACM		 2182 return 0;
2183}
2184
1d6c9407
WN		 2185static void bpf_output__printer(enum binary_printer_ops op,
2186 unsigned int val, void *extra)
2187{
2188 FILE *output = extra;
2189 unsigned char ch = (unsigned char)val;
2190
2191 switch (op) {
2192 case BINARY_PRINT_CHAR_DATA:
2193 fprintf(output, "%c", isprint(ch) ? ch : '.');
2194 break;
2195 case BINARY_PRINT_DATA_BEGIN:
2196 case BINARY_PRINT_LINE_BEGIN:
2197 case BINARY_PRINT_ADDR:
2198 case BINARY_PRINT_NUM_DATA:
2199 case BINARY_PRINT_NUM_PAD:
2200 case BINARY_PRINT_SEP:
2201 case BINARY_PRINT_CHAR_PAD:
2202 case BINARY_PRINT_LINE_END:
2203 case BINARY_PRINT_DATA_END:
2204 default:
2205 break;
2206 }
2207}
2208
2209static void bpf_output__fprintf(struct trace *trace,
2210 struct perf_sample *sample)
2211{
2212 print_binary(sample->raw_data, sample->raw_size, 8,
2213 bpf_output__printer, trace->output);
2214}
2215
14a052df
ACM		 2216static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
2217 union perf_event *event __maybe_unused,
2218 struct perf_sample *sample)
2219{
2220 trace__printf_interrupted_entry(trace, sample);
2221 trace__fprintf_tstamp(trace, sample->time, trace->output);
0808921a
ACM		 2222
2223 if (trace->trace_syscalls)
2224 fprintf(trace->output, "( ): ");
2225
2226 fprintf(trace->output, "%s:", evsel->name);
14a052df 2227
1d6c9407
WN		 2228 if (perf_evsel__is_bpf_output(evsel)) {
2229 bpf_output__fprintf(trace, sample);
2230 } else if (evsel->tp_format) {
14a052df
ACM		 2231 event_format__fprintf(evsel->tp_format, sample->cpu,
2232 sample->raw_data, sample->raw_size,
2233 trace->output);
2234 }
2235
2236 fprintf(trace->output, ")\n");
2237 return 0;
2238}
2239
598d02c5
SF		 2240static void print_location(FILE *f, struct perf_sample *sample,
2241 struct addr_location *al,
2242 bool print_dso, bool print_sym)
2243{
2244
2245 if ((verbose || print_dso) && al->map)
2246 fprintf(f, "%s@", al->map->dso->long_name);
2247
2248 if ((verbose || print_sym) && al->sym)
4414a3c5 2249 fprintf(f, "%s+0x%" PRIx64, al->sym->name,
598d02c5
SF		 2250 al->addr - al->sym->start);
2251 else if (al->map)
4414a3c5 2252 fprintf(f, "0x%" PRIx64, al->addr);
598d02c5 2253 else
4414a3c5 2254 fprintf(f, "0x%" PRIx64, sample->addr);
598d02c5
SF		 2255}
2256
2257static int trace__pgfault(struct trace *trace,
2258 struct perf_evsel *evsel,
473398a2 2259 union perf_event *event __maybe_unused,
598d02c5
SF		 2260 struct perf_sample *sample)
2261{
2262 struct thread *thread;
598d02c5
SF		 2263 struct addr_location al;
2264 char map_type = 'd';
a2ea67d7 2265 struct thread_trace *ttrace;
b91fc39f 2266 int err = -1;
598d02c5
SF		 2267
2268 thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
a2ea67d7
SF		 2269 ttrace = thread__trace(thread, trace->output);
2270 if (ttrace == NULL)
b91fc39f 2271 goto out_put;
a2ea67d7
SF		 2272
2273 if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
2274 ttrace->pfmaj++;
2275 else
2276 ttrace->pfmin++;
2277
2278 if (trace->summary_only)
b91fc39f 2279 goto out;
598d02c5 2280
473398a2 2281 thread__find_addr_location(thread, sample->cpumode, MAP__FUNCTION,
598d02c5
SF		 2282 sample->ip, &al);
2283
2284 trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
2285
2286 fprintf(trace->output, "%sfault [",
2287 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
2288 "maj" : "min");
2289
2290 print_location(trace->output, sample, &al, false, true);
2291
2292 fprintf(trace->output, "] => ");
2293
473398a2 2294 thread__find_addr_location(thread, sample->cpumode, MAP__VARIABLE,
598d02c5
SF		 2295 sample->addr, &al);
2296
2297 if (!al.map) {
473398a2 2298 thread__find_addr_location(thread, sample->cpumode,
598d02c5
SF		 2299 MAP__FUNCTION, sample->addr, &al);
2300
2301 if (al.map)
2302 map_type = 'x';
2303 else
2304 map_type = '?';
2305 }
2306
2307 print_location(trace->output, sample, &al, true, false);
2308
2309 fprintf(trace->output, " (%c%c)\n", map_type, al.level);
b91fc39f
ACM		 2310out:
2311 err = 0;
2312out_put:
2313 thread__put(thread);
2314 return err;
598d02c5
SF		 2315}
2316
bdc89661
DA		 2317static bool skip_sample(struct trace *trace, struct perf_sample *sample)
2318{
2319 if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) ||
2320 (trace->tid_list && intlist__find(trace->tid_list, sample->tid)))
2321 return false;
2322
2323 if (trace->pid_list || trace->tid_list)
2324 return true;
2325
2326 return false;
2327}
2328
6810fc91 2329static int trace__process_sample(struct perf_tool *tool,
0c82adcf 2330 union perf_event *event,
6810fc91
DA		 2331 struct perf_sample *sample,
2332 struct perf_evsel *evsel,
2333 struct machine *machine __maybe_unused)
2334{
2335 struct trace *trace = container_of(tool, struct trace, tool);
2336 int err = 0;
2337
744a9719 2338 tracepoint_handler handler = evsel->handler;
6810fc91 2339
bdc89661
DA		 2340 if (skip_sample(trace, sample))
2341 return 0;
2342
4bb09192 2343 if (!trace->full_time && trace->base_time == 0)
6810fc91
DA		 2344 trace->base_time = sample->time;
2345
3160565f
DA		 2346 if (handler) {
2347 ++trace->nr_events;
0c82adcf 2348 handler(trace, evsel, event, sample);
3160565f 2349 }
6810fc91
DA		 2350
2351 return err;
2352}
2353
bdc89661
DA		 2354static int parse_target_str(struct trace *trace)
2355{
2356 if (trace->opts.target.pid) {
2357 trace->pid_list = intlist__new(trace->opts.target.pid);
2358 if (trace->pid_list == NULL) {
2359 pr_err("Error parsing process id string\n");
2360 return -EINVAL;
2361 }
2362 }
2363
2364 if (trace->opts.target.tid) {
2365 trace->tid_list = intlist__new(trace->opts.target.tid);
2366 if (trace->tid_list == NULL) {
2367 pr_err("Error parsing thread id string\n");
2368 return -EINVAL;
2369 }
2370 }
2371
2372 return 0;
2373}
2374
1e28fe0a 2375static int trace__record(struct trace *trace, int argc, const char **argv)
5e2485b1
DA		 2376{
2377 unsigned int rec_argc, i, j;
2378 const char **rec_argv;
2379 const char * const record_args[] = {
2380 "record",
2381 "-R",
2382 "-m", "1024",
2383 "-c", "1",
5e2485b1
DA		 2384 };
2385
1e28fe0a
SF		 2386 const char * const sc_args[] = { "-e", };
2387 unsigned int sc_args_nr = ARRAY_SIZE(sc_args);
2388 const char * const majpf_args[] = { "-e", "major-faults" };
2389 unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args);
2390 const char * const minpf_args[] = { "-e", "minor-faults" };
2391 unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args);
2392
9aca7f17 2393 /* +1 is for the event string below */
1e28fe0a
SF		 2394 rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 +
2395 majpf_args_nr + minpf_args_nr + argc;
5e2485b1
DA		 2396 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2397
2398 if (rec_argv == NULL)
2399 return -ENOMEM;
2400
1e28fe0a 2401 j = 0;
5e2485b1 2402 for (i = 0; i < ARRAY_SIZE(record_args); i++)
1e28fe0a
SF		 2403 rec_argv[j++] = record_args[i];
2404
e281a960
SF		 2405 if (trace->trace_syscalls) {
2406 for (i = 0; i < sc_args_nr; i++)
2407 rec_argv[j++] = sc_args[i];
2408
2409 /* event string may be different for older kernels - e.g., RHEL6 */
2410 if (is_valid_tracepoint("raw_syscalls:sys_enter"))
2411 rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit";
2412 else if (is_valid_tracepoint("syscalls:sys_enter"))
2413 rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
2414 else {
2415 pr_err("Neither raw_syscalls nor syscalls events exist.\n");
2416 return -1;
2417 }
9aca7f17 2418 }
9aca7f17 2419
1e28fe0a
SF		 2420 if (trace->trace_pgfaults & TRACE_PFMAJ)
2421 for (i = 0; i < majpf_args_nr; i++)
2422 rec_argv[j++] = majpf_args[i];
2423
2424 if (trace->trace_pgfaults & TRACE_PFMIN)
2425 for (i = 0; i < minpf_args_nr; i++)
2426 rec_argv[j++] = minpf_args[i];
2427
2428 for (i = 0; i < (unsigned int)argc; i++)
2429 rec_argv[j++] = argv[i];
5e2485b1 2430
1e28fe0a 2431 return cmd_record(j, rec_argv, NULL);
5e2485b1
DA		 2432}
2433
bf2575c1
DA		 2434static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
2435
08c98776 2436static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
c522739d 2437{
ef503831 2438 struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
8dd2a131
JO		 2439
2440 if (IS_ERR(evsel))
08c98776 2441 return false;
c522739d
ACM		 2442
2443 if (perf_evsel__field(evsel, "pathname") == NULL) {
2444 perf_evsel__delete(evsel);
08c98776 2445 return false;
c522739d
ACM		 2446 }
2447
744a9719 2448 evsel->handler = trace__vfs_getname;
c522739d 2449 perf_evlist__add(evlist, evsel);
08c98776 2450 return true;
c522739d
ACM		 2451}
2452
598d02c5
SF		 2453static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
2454 u64 config)
2455{
2456 struct perf_evsel *evsel;
2457 struct perf_event_attr attr = {
2458 .type = PERF_TYPE_SOFTWARE,
2459 .mmap_data = 1,
598d02c5
SF		 2460 };
2461
2462 attr.config = config;
0524798c 2463 attr.sample_period = 1;
598d02c5
SF		 2464
2465 event_attr_init(&attr);
2466
2467 evsel = perf_evsel__new(&attr);
2468 if (!evsel)
2469 return -ENOMEM;
2470
2471 evsel->handler = trace__pgfault;
2472 perf_evlist__add(evlist, evsel);
2473
2474 return 0;
2475}
2476
ddbb1b13
ACM		 2477static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
2478{
2479 const u32 type = event->header.type;
2480 struct perf_evsel *evsel;
2481
2482 if (!trace->full_time && trace->base_time == 0)
2483 trace->base_time = sample->time;
2484
2485 if (type != PERF_RECORD_SAMPLE) {
2486 trace__process_event(trace, trace->host, event, sample);
2487 return;
2488 }
2489
2490 evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
2491 if (evsel == NULL) {
2492 fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
2493 return;
2494 }
2495
2496 if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
2497 sample->raw_data == NULL) {
2498 fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",
2499 perf_evsel__name(evsel), sample->tid,
2500 sample->cpu, sample->raw_size);
2501 } else {
2502 tracepoint_handler handler = evsel->handler;
2503 handler(trace, evsel, event, sample);
2504 }
2505}
2506
c27366f0
ACM		 2507static int trace__add_syscall_newtp(struct trace *trace)
2508{
2509 int ret = -1;
2510 struct perf_evlist *evlist = trace->evlist;
2511 struct perf_evsel *sys_enter, *sys_exit;
2512
2513 sys_enter = perf_evsel__syscall_newtp("sys_enter", trace__sys_enter);
2514 if (sys_enter == NULL)
2515 goto out;
2516
2517 if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
2518 goto out_delete_sys_enter;
2519
2520 sys_exit = perf_evsel__syscall_newtp("sys_exit", trace__sys_exit);
2521 if (sys_exit == NULL)
2522 goto out_delete_sys_enter;
2523
2524 if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
2525 goto out_delete_sys_exit;
2526
2527 perf_evlist__add(evlist, sys_enter);
2528 perf_evlist__add(evlist, sys_exit);
2529
8b3ce757
ACM		 2530 trace->syscalls.events.sys_enter = sys_enter;
2531 trace->syscalls.events.sys_exit = sys_exit;
c27366f0
ACM		 2532
2533 ret = 0;
2534out:
2535 return ret;
2536
2537out_delete_sys_exit:
2538 perf_evsel__delete_priv(sys_exit);
2539out_delete_sys_enter:
2540 perf_evsel__delete_priv(sys_enter);
2541 goto out;
2542}
2543
19867b61
ACM		 2544static int trace__set_ev_qualifier_filter(struct trace *trace)
2545{
2546 int err = -1;
2547 char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier,
2548 trace->ev_qualifier_ids.nr,
2549 trace->ev_qualifier_ids.entries);
2550
2551 if (filter == NULL)
2552 goto out_enomem;
2553
2554 if (!perf_evsel__append_filter(trace->syscalls.events.sys_enter, "&&", filter))
2555 err = perf_evsel__append_filter(trace->syscalls.events.sys_exit, "&&", filter);
2556
2557 free(filter);
2558out:
2559 return err;
2560out_enomem:
2561 errno = ENOMEM;
2562 goto out;
2563}
c27366f0 2564
f15eb531 2565static int trace__run(struct trace *trace, int argc, const char **argv)
514f1c67 2566{
14a052df 2567 struct perf_evlist *evlist = trace->evlist;
94ad89bc 2568 struct perf_evsel *evsel;
efd5745e
ACM		 2569 int err = -1, i;
2570 unsigned long before;
f15eb531 2571 const bool forks = argc > 0;
46fb3c21 2572 bool draining = false;
514f1c67 2573
75b757ca
ACM		 2574 trace->live = true;
2575
c27366f0 2576 if (trace->trace_syscalls && trace__add_syscall_newtp(trace))
801c67b0 2577 goto out_error_raw_syscalls;
514f1c67 2578
e281a960 2579 if (trace->trace_syscalls)
08c98776 2580 trace->vfs_getname = perf_evlist__add_vfs_getname(evlist);
c522739d 2581
598d02c5 2582 if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
e2726d99 2583 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
5ed08dae 2584 goto out_error_mem;
e2726d99 2585 }
598d02c5
SF		 2586
2587 if ((trace->trace_pgfaults & TRACE_PFMIN) &&
2588 perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
5ed08dae 2589 goto out_error_mem;
598d02c5 2590
1302d88e 2591 if (trace->sched &&
2cc990ba
ACM		 2592 perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
2593 trace__sched_stat_runtime))
2594 goto out_error_sched_stat_runtime;
1302d88e 2595
514f1c67
ACM		 2596 err = perf_evlist__create_maps(evlist, &trace->opts.target);
2597 if (err < 0) {
c24ff998 2598 fprintf(trace->output, "Problems parsing the target to trace, check your options!\n");
514f1c67
ACM		 2599 goto out_delete_evlist;
2600 }
2601
752fde44
ACM		 2602 err = trace__symbols_init(trace, evlist);
2603 if (err < 0) {
c24ff998 2604 fprintf(trace->output, "Problems initializing symbol libraries!\n");
03ad9747 2605 goto out_delete_evlist;
752fde44
ACM		 2606 }
2607
f77a9518 2608 perf_evlist__config(evlist, &trace->opts);
514f1c67 2609
f15eb531
NK		 2610 signal(SIGCHLD, sig_handler);
2611 signal(SIGINT, sig_handler);
2612
2613 if (forks) {
6ef73ec4 2614 err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
735f7e0b 2615 argv, false, NULL);
f15eb531 2616 if (err < 0) {
c24ff998 2617 fprintf(trace->output, "Couldn't run the workload!\n");
03ad9747 2618 goto out_delete_evlist;
f15eb531
NK		 2619 }
2620 }
2621
514f1c67 2622 err = perf_evlist__open(evlist);
a8f23d8f
ACM		 2623 if (err < 0)
2624 goto out_error_open;
514f1c67 2625
ba504235
WN		 2626 err = bpf__apply_obj_config();
2627 if (err) {
2628 char errbuf[BUFSIZ];
2629
2630 bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf));
2631 pr_err("ERROR: Apply config to BPF failed: %s\n",
2632 errbuf);
2633 goto out_error_open;
2634 }
2635
241b057c
ACM		 2636 /*
2637 * Better not use !target__has_task() here because we need to cover the
2638 * case where no threads were specified in the command line, but a
2639 * workload was, and in that case we will fill in the thread_map when
2640 * we fork the workload in perf_evlist__prepare_workload.
2641 */
f078c385
ACM		 2642 if (trace->filter_pids.nr > 0)
2643 err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries);
e13798c7 2644 else if (thread_map__pid(evlist->threads, 0) == -1)
f078c385
ACM		 2645 err = perf_evlist__set_filter_pid(evlist, getpid());
2646
94ad89bc
ACM		 2647 if (err < 0)
2648 goto out_error_mem;
2649
19867b61
ACM		 2650 if (trace->ev_qualifier_ids.nr > 0) {
2651 err = trace__set_ev_qualifier_filter(trace);
2652 if (err < 0)
2653 goto out_errno;
19867b61 2654
2e5e5f87
ACM		 2655 pr_debug("event qualifier tracepoint filter: %s\n",
2656 trace->syscalls.events.sys_exit->filter);
2657 }
19867b61 2658
94ad89bc
ACM		 2659 err = perf_evlist__apply_filters(evlist, &evsel);
2660 if (err < 0)
2661 goto out_error_apply_filters;
241b057c 2662
f885037e 2663 err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
e09b18d4
ACM		 2664 if (err < 0)
2665 goto out_error_mmap;
514f1c67 2666
cb24d01d
ACM		 2667 if (!target__none(&trace->opts.target))
2668 perf_evlist__enable(evlist);
2669
f15eb531
NK		 2670 if (forks)
2671 perf_evlist__start_workload(evlist);
2672
e13798c7 2673 trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 ||
42052bea
ACM		 2674 evlist->threads->nr > 1 ||
2675 perf_evlist__first(evlist)->attr.inherit;
514f1c67 2676again:
efd5745e 2677 before = trace->nr_events;
514f1c67
ACM		 2678
2679 for (i = 0; i < evlist->nr_mmaps; i++) {
2680 union perf_event *event;
2681
2682 while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
514f1c67 2683 struct perf_sample sample;
514f1c67 2684
efd5745e 2685 ++trace->nr_events;
514f1c67 2686
514f1c67
ACM		 2687 err = perf_evlist__parse_sample(evlist, event, &sample);
2688 if (err) {
c24ff998 2689 fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
8e50d384 2690 goto next_event;
514f1c67
ACM		 2691 }
2692
ddbb1b13 2693 trace__handle_event(trace, event, &sample);
8e50d384
ZZ		 2694next_event:
2695 perf_evlist__mmap_consume(evlist, i);
20c5f10e 2696
ba209f85
ACM		 2697 if (interrupted)
2698 goto out_disable;
02ac5421
ACM		 2699
2700 if (done && !draining) {
2701 perf_evlist__disable(evlist);
2702 draining = true;
2703 }
514f1c67
ACM		 2704 }
2705 }
2706
efd5745e 2707 if (trace->nr_events == before) {
ba209f85 2708 int timeout = done ? 100 : -1;
f15eb531 2709
46fb3c21
ACM		 2710 if (!draining && perf_evlist__poll(evlist, timeout) > 0) {
2711 if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0)
2712 draining = true;
2713
ba209f85 2714 goto again;
46fb3c21 2715 }
ba209f85
ACM		 2716 } else {
2717 goto again;
f15eb531
NK		 2718 }
2719
ba209f85 2720out_disable:
f3b623b8
ACM		 2721 thread__zput(trace->current);
2722
ba209f85 2723 perf_evlist__disable(evlist);
514f1c67 2724
c522739d
ACM		 2725 if (!err) {
2726 if (trace->summary)
2727 trace__fprintf_thread_summary(trace, trace->output);
2728
2729 if (trace->show_tool_stats) {
2730 fprintf(trace->output, "Stats:\n "
2731 " vfs_getname : %" PRIu64 "\n"
2732 " proc_getname: %" PRIu64 "\n",
2733 trace->stats.vfs_getname,
2734 trace->stats.proc_getname);
2735 }
2736 }
bf2575c1 2737
514f1c67
ACM		 2738out_delete_evlist:
2739 perf_evlist__delete(evlist);
14a052df 2740 trace->evlist = NULL;
75b757ca 2741 trace->live = false;
514f1c67 2742 return err;
6ef068cb
ACM		 2743{
2744 char errbuf[BUFSIZ];
a8f23d8f 2745
2cc990ba 2746out_error_sched_stat_runtime:
988bdb31 2747 tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
2cc990ba
ACM		 2748 goto out_error;
2749
801c67b0 2750out_error_raw_syscalls:
988bdb31 2751 tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
a8f23d8f
ACM		 2752 goto out_error;
2753
e09b18d4
ACM		 2754out_error_mmap:
2755 perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf));
2756 goto out_error;
2757
a8f23d8f
ACM		 2758out_error_open:
2759 perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
2760
2761out_error:
6ef068cb 2762 fprintf(trace->output, "%s\n", errbuf);
87f91868 2763 goto out_delete_evlist;
94ad89bc
ACM		 2764
2765out_error_apply_filters:
2766 fprintf(trace->output,
2767 "Failed to set filter \"%s\" on event %s with %d (%s)\n",
2768 evsel->filter, perf_evsel__name(evsel), errno,
2769 strerror_r(errno, errbuf, sizeof(errbuf)));
2770 goto out_delete_evlist;
514f1c67 2771}
5ed08dae
ACM		 2772out_error_mem:
2773 fprintf(trace->output, "Not enough memory to run!\n");
2774 goto out_delete_evlist;
19867b61
ACM		 2775
2776out_errno:
2777 fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno));
2778 goto out_delete_evlist;
a8f23d8f 2779}
514f1c67 2780
6810fc91
DA		 2781static int trace__replay(struct trace *trace)
2782{
2783 const struct perf_evsel_str_handler handlers[] = {
c522739d 2784 { "probe:vfs_getname", trace__vfs_getname, },
6810fc91 2785 };
f5fc1412
JO		 2786 struct perf_data_file file = {
2787 .path = input_name,
2788 .mode = PERF_DATA_MODE_READ,
e366a6d8 2789 .force = trace->force,
f5fc1412 2790 };
6810fc91 2791 struct perf_session *session;
003824e8 2792 struct perf_evsel *evsel;
6810fc91
DA		 2793 int err = -1;
2794
2795 trace->tool.sample = trace__process_sample;
2796 trace->tool.mmap = perf_event__process_mmap;
384c671e 2797 trace->tool.mmap2 = perf_event__process_mmap2;
6810fc91
DA		 2798 trace->tool.comm = perf_event__process_comm;
2799 trace->tool.exit = perf_event__process_exit;
2800 trace->tool.fork = perf_event__process_fork;
2801 trace->tool.attr = perf_event__process_attr;
2802 trace->tool.tracing_data = perf_event__process_tracing_data;
2803 trace->tool.build_id = perf_event__process_build_id;
2804
0a8cb85c 2805 trace->tool.ordered_events = true;
6810fc91
DA		 2806 trace->tool.ordering_requires_timestamps = true;
2807
2808 /* add tid to output */
2809 trace->multiple_threads = true;
2810
f5fc1412 2811 session = perf_session__new(&file, false, &trace->tool);
6810fc91 2812 if (session == NULL)
52e02834 2813 return -1;
6810fc91 2814
0a7e6d1b 2815 if (symbol__init(&session->header.env) < 0)
cb2ffae2
NK		 2816 goto out;
2817
8fb598e5
DA		 2818 trace->host = &session->machines.host;
2819
6810fc91
DA		 2820 err = perf_session__set_tracepoints_handlers(session, handlers);
2821 if (err)
2822 goto out;
2823
003824e8
NK		 2824 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2825 "raw_syscalls:sys_enter");
9aca7f17
DA		 2826 /* older kernels have syscalls tp versus raw_syscalls */
2827 if (evsel == NULL)
2828 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2829 "syscalls:sys_enter");
003824e8 2830
e281a960
SF		 2831 if (evsel &&
2832 (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
2833 perf_evsel__init_sc_tp_ptr_field(evsel, args))) {
003824e8
NK		 2834 pr_err("Error during initialize raw_syscalls:sys_enter event\n");
2835 goto out;
2836 }
2837
2838 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2839 "raw_syscalls:sys_exit");
9aca7f17
DA		 2840 if (evsel == NULL)
2841 evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
2842 "syscalls:sys_exit");
e281a960
SF		 2843 if (evsel &&
2844 (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
2845 perf_evsel__init_sc_tp_uint_field(evsel, ret))) {
003824e8 2846 pr_err("Error during initialize raw_syscalls:sys_exit event\n");
6810fc91
DA		 2847 goto out;
2848 }
2849
1e28fe0a
SF		 2850 evlist__for_each(session->evlist, evsel) {
2851 if (evsel->attr.type == PERF_TYPE_SOFTWARE &&
2852 (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ||
2853 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
2854 evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS))
2855 evsel->handler = trace__pgfault;
2856 }
2857
bdc89661
DA		 2858 err = parse_target_str(trace);
2859 if (err != 0)
2860 goto out;
2861
6810fc91
DA		 2862 setup_pager();
2863
b7b61cbe 2864 err = perf_session__process_events(session);
6810fc91
DA		 2865 if (err)
2866 pr_err("Failed to process events, error %d", err);
2867
bf2575c1
DA		 2868 else if (trace->summary)
2869 trace__fprintf_thread_summary(trace, trace->output);
2870
6810fc91
DA		 2871out:
2872 perf_session__delete(session);
2873
2874 return err;
2875}
2876
1302d88e
ACM		 2877static size_t trace__fprintf_threads_header(FILE *fp)
2878{
2879 size_t printed;
2880
99ff7150 2881 printed = fprintf(fp, "\n Summary of events:\n\n");
bf2575c1
DA		 2882
2883 return printed;
2884}
2885
2886static size_t thread__dump_stats(struct thread_trace *ttrace,
2887 struct trace *trace, FILE *fp)
2888{
2889 struct stats *stats;
2890 size_t printed = 0;
2891 struct syscall *sc;
2892 struct int_node *inode = intlist__first(ttrace->syscall_stats);
2893
2894 if (inode == NULL)
2895 return 0;
2896
2897 printed += fprintf(fp, "\n");
2898
834fd46d
MW		 2899 printed += fprintf(fp, " syscall calls total min avg max stddev\n");
2900 printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n");
2901 printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n");
99ff7150 2902
bf2575c1
DA		 2903 /* each int_node is a syscall */
2904 while (inode) {
2905 stats = inode->priv;
2906 if (stats) {
2907 double min = (double)(stats->min) / NSEC_PER_MSEC;
2908 double max = (double)(stats->max) / NSEC_PER_MSEC;
2909 double avg = avg_stats(stats);
2910 double pct;
2911 u64 n = (u64) stats->n;
2912
2913 pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
2914 avg /= NSEC_PER_MSEC;
2915
2916 sc = &trace->syscalls.table[inode->i];
99ff7150 2917 printed += fprintf(fp, " %-15s", sc->name);
834fd46d
MW		 2918 printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f",
2919 n, avg * n, min, avg);
27a778b5 2920 printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
bf2575c1
DA		 2921 }
2922
2923 inode = intlist__next(inode);
2924 }
2925
2926 printed += fprintf(fp, "\n\n");
1302d88e
ACM		 2927
2928 return printed;
2929}
2930
896cbb56
DA		 2931/* struct used to pass data to per-thread function */
2932struct summary_data {
2933 FILE *fp;
2934 struct trace *trace;
2935 size_t printed;
2936};
2937
2938static int trace__fprintf_one_thread(struct thread *thread, void *priv)
2939{
2940 struct summary_data *data = priv;
2941 FILE *fp = data->fp;
2942 size_t printed = data->printed;
2943 struct trace *trace = data->trace;
89dceb22 2944 struct thread_trace *ttrace = thread__priv(thread);
896cbb56
DA		 2945 double ratio;
2946
2947 if (ttrace == NULL)
2948 return 0;
2949
2950 ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
2951
15e65c69 2952 printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid);
99ff7150 2953 printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
15e65c69 2954 printed += fprintf(fp, "%.1f%%", ratio);
a2ea67d7
SF		 2955 if (ttrace->pfmaj)
2956 printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj);
2957 if (ttrace->pfmin)
2958 printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin);
99ff7150 2959 printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
bf2575c1 2960 printed += thread__dump_stats(ttrace, trace, fp);
896cbb56
DA		 2961
2962 data->printed += printed;
2963
2964 return 0;
2965}
2966
1302d88e
ACM		 2967static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
2968{
896cbb56
DA		 2969 struct summary_data data = {
2970 .fp = fp,
2971 .trace = trace
2972 };
2973 data.printed = trace__fprintf_threads_header(fp);
1302d88e 2974
896cbb56
DA		 2975 machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
2976
2977 return data.printed;
1302d88e
ACM		 2978}
2979
ae9ed035
ACM		 2980static int trace__set_duration(const struct option *opt, const char *str,
2981 int unset __maybe_unused)
2982{
2983 struct trace *trace = opt->value;
2984
2985 trace->duration_filter = atof(str);
2986 return 0;
2987}
2988
f078c385
ACM		 2989static int trace__set_filter_pids(const struct option *opt, const char *str,
2990 int unset __maybe_unused)
2991{
2992 int ret = -1;
2993 size_t i;
2994 struct trace *trace = opt->value;
2995 /*
2996 * FIXME: introduce a intarray class, plain parse csv and create a
2997 * { int nr, int entries[] } struct...
2998 */
2999 struct intlist *list = intlist__new(str);
3000
3001 if (list == NULL)
3002 return -1;
3003
3004 i = trace->filter_pids.nr = intlist__nr_entries(list) + 1;
3005 trace->filter_pids.entries = calloc(i, sizeof(pid_t));
3006
3007 if (trace->filter_pids.entries == NULL)
3008 goto out;
3009
3010 trace->filter_pids.entries[0] = getpid();
3011
3012 for (i = 1; i < trace->filter_pids.nr; ++i)
3013 trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i;
3014
3015 intlist__delete(list);
3016 ret = 0;
3017out:
3018 return ret;
3019}
3020
c24ff998
ACM		 3021static int trace__open_output(struct trace *trace, const char *filename)
3022{
3023 struct stat st;
3024
3025 if (!stat(filename, &st) && st.st_size) {
3026 char oldname[PATH_MAX];
3027
3028 scnprintf(oldname, sizeof(oldname), "%s.old", filename);
3029 unlink(oldname);
3030 rename(filename, oldname);
3031 }
3032
3033 trace->output = fopen(filename, "w");
3034
3035 return trace->output == NULL ? -errno : 0;
3036}
3037
598d02c5
SF		 3038static int parse_pagefaults(const struct option *opt, const char *str,
3039 int unset __maybe_unused)
3040{
3041 int *trace_pgfaults = opt->value;
3042
3043 if (strcmp(str, "all") == 0)
3044 *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN;
3045 else if (strcmp(str, "maj") == 0)
3046 *trace_pgfaults |= TRACE_PFMAJ;
3047 else if (strcmp(str, "min") == 0)
3048 *trace_pgfaults |= TRACE_PFMIN;
3049 else
3050 return -1;
3051
3052 return 0;
3053}
3054
14a052df
ACM		 3055static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler)
3056{
3057 struct perf_evsel *evsel;
3058
3059 evlist__for_each(evlist, evsel)
3060 evsel->handler = handler;
3061}
3062
514f1c67
ACM		 3063int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
3064{
6fdd9cb7 3065 const char *trace_usage[] = {
f15eb531
NK		 3066 "perf trace [<options>] [<command>]",
3067 "perf trace [<options>] -- <command> [<options>]",
5e2485b1
DA		 3068 "perf trace record [<options>] [<command>]",
3069 "perf trace record [<options>] -- <command> [<options>]",
514f1c67
ACM		 3070 NULL
3071 };
3072 struct trace trace = {
c522739d
ACM		 3073 .audit = {
3074 .machine = audit_detect_machine(),
3075 .open_id = audit_name_to_syscall("open", trace.audit.machine),
3076 },
514f1c67
ACM		 3077 .syscalls = {
3078 . max = -1,
3079 },
3080 .opts = {
3081 .target = {
3082 .uid = UINT_MAX,
3083 .uses_mmap = true,
3084 },
3085 .user_freq = UINT_MAX,
3086 .user_interval = ULLONG_MAX,
509051ea 3087 .no_buffering = true,
38d5447d 3088 .mmap_pages = UINT_MAX,
9d9cad76 3089 .proc_map_timeout = 500,
514f1c67 3090 },
007d66a0 3091 .output = stderr,
50c95cbd 3092 .show_comm = true,
e281a960 3093 .trace_syscalls = true,
514f1c67 3094 };
c24ff998 3095 const char *output_name = NULL;
2ae3a312 3096 const char *ev_qualifier_str = NULL;
514f1c67 3097 const struct option trace_options[] = {
14a052df
ACM		 3098 OPT_CALLBACK(0, "event", &trace.evlist, "event",
3099 "event selector. use 'perf list' to list available events",
3100 parse_events_option),
50c95cbd
ACM		 3101 OPT_BOOLEAN(0, "comm", &trace.show_comm,
3102 "show the thread COMM next to its id"),
c522739d 3103 OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
d303e85a 3104 OPT_STRING('e', "expr", &ev_qualifier_str, "expr", "list of syscalls to trace"),
c24ff998 3105 OPT_STRING('o', "output", &output_name, "file", "output file name"),
6810fc91 3106 OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"),
514f1c67
ACM		 3107 OPT_STRING('p', "pid", &trace.opts.target.pid, "pid",
3108 "trace events on existing process id"),
ac9be8ee 3109 OPT_STRING('t', "tid", &trace.opts.target.tid, "tid",
514f1c67 3110 "trace events on existing thread id"),
fa0e4ffe
ACM		 3111 OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids",
3112 "pids to filter (by the kernel)", trace__set_filter_pids),
ac9be8ee 3113 OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide,
514f1c67 3114 "system-wide collection from all CPUs"),
ac9be8ee 3115 OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu",
514f1c67 3116 "list of cpus to monitor"),
6810fc91 3117 OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
514f1c67 3118 "child tasks do not inherit counters"),
994a1f78
JO		 3119 OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
3120 "number of mmap data pages",
3121 perf_evlist__parse_mmap_pages),
ac9be8ee 3122 OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
514f1c67 3123 "user to profile"),
ae9ed035
ACM		 3124 OPT_CALLBACK(0, "duration", &trace, "float",
3125 "show only events with duration > N.M ms",
3126 trace__set_duration),
1302d88e 3127 OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
7c304ee0 3128 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
4bb09192
DA		 3129 OPT_BOOLEAN('T', "time", &trace.full_time,
3130 "Show full timestamp, not time relative to first start"),
fd2eabaf
DA		 3131 OPT_BOOLEAN('s', "summary", &trace.summary_only,
3132 "Show only syscall summary with statistics"),
3133 OPT_BOOLEAN('S', "with-summary", &trace.summary,
3134 "Show all syscalls and summary with statistics"),
598d02c5
SF		 3135 OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min",
3136 "Trace pagefaults", parse_pagefaults, "maj"),
e281a960 3137 OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"),
e366a6d8 3138 OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"),
9d9cad76
KL		 3139 OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout,
3140 "per thread proc mmap processing timeout in ms"),
514f1c67
ACM		 3141 OPT_END()
3142 };
6fdd9cb7 3143 const char * const trace_subcommands[] = { "record", NULL };
514f1c67 3144 int err;
32caf0d1 3145 char bf[BUFSIZ];
514f1c67 3146
4d08cb80
ACM		 3147 signal(SIGSEGV, sighandler_dump_stack);
3148 signal(SIGFPE, sighandler_dump_stack);
3149
14a052df 3150 trace.evlist = perf_evlist__new();
14a052df
ACM		 3151
3152 if (trace.evlist == NULL) {
3153 pr_err("Not enough memory to run!\n");
ff8f695c 3154 err = -ENOMEM;
14a052df
ACM		 3155 goto out;
3156 }
3157
6fdd9cb7
YS		 3158 argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands,
3159 trace_usage, PARSE_OPT_STOP_AT_NON_OPTION);
fd2eabaf 3160
598d02c5
SF		 3161 if (trace.trace_pgfaults) {
3162 trace.opts.sample_address = true;
3163 trace.opts.sample_time = true;
3164 }
3165
14a052df
ACM		 3166 if (trace.evlist->nr_entries > 0)
3167 evlist__set_evsel_handler(trace.evlist, trace__event_handler);
3168
1e28fe0a
SF		 3169 if ((argc >= 1) && (strcmp(argv[0], "record") == 0))
3170 return trace__record(&trace, argc-1, &argv[1]);
3171
3172 /* summary_only implies summary option, but don't overwrite summary if set */
3173 if (trace.summary_only)
3174 trace.summary = trace.summary_only;
3175
726f3234
ACM		 3176 if (!trace.trace_syscalls && !trace.trace_pgfaults &&
3177 trace.evlist->nr_entries == 0 /* Was --events used? */) {
e281a960
SF		 3178 pr_err("Please specify something to trace.\n");
3179 return -1;
3180 }
3181
c24ff998
ACM		 3182 if (output_name != NULL) {
3183 err = trace__open_output(&trace, output_name);
3184 if (err < 0) {
3185 perror("failed to create output file");
3186 goto out;
3187 }
3188 }
3189
2ae3a312 3190 if (ev_qualifier_str != NULL) {
b059efdf 3191 const char *s = ev_qualifier_str;
005438a8
ACM		 3192 struct strlist_config slist_config = {
3193 .dirname = system_path(STRACE_GROUPS_DIR),
3194 };
b059efdf
ACM		 3195
3196 trace.not_ev_qualifier = *s == '!';
3197 if (trace.not_ev_qualifier)
3198 ++s;
005438a8 3199 trace.ev_qualifier = strlist__new(s, &slist_config);
2ae3a312 3200 if (trace.ev_qualifier == NULL) {
c24ff998
ACM		 3201 fputs("Not enough memory to parse event qualifier",
3202 trace.output);
3203 err = -ENOMEM;
3204 goto out_close;
2ae3a312 3205 }
d0cc439b
ACM		 3206
3207 err = trace__validate_ev_qualifier(&trace);
3208 if (err)
3209 goto out_close;
2ae3a312
ACM		 3210 }
3211
602ad878 3212 err = target__validate(&trace.opts.target);
32caf0d1 3213 if (err) {
602ad878 3214 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 3215 fprintf(trace.output, "%s", bf);
3216 goto out_close;
32caf0d1
NK		 3217 }
3218
602ad878 3219 err = target__parse_uid(&trace.opts.target);
514f1c67 3220 if (err) {
602ad878 3221 target__strerror(&trace.opts.target, err, bf, sizeof(bf));
c24ff998
ACM		 3222 fprintf(trace.output, "%s", bf);
3223 goto out_close;
514f1c67
ACM		 3224 }
3225
602ad878 3226 if (!argc && target__none(&trace.opts.target))
ee76120e
NK		 3227 trace.opts.target.system_wide = true;
3228
6810fc91
DA		 3229 if (input_name)
3230 err = trace__replay(&trace);
3231 else
3232 err = trace__run(&trace, argc, argv);
1302d88e 3233
c24ff998
ACM		 3234out_close:
3235 if (output_name != NULL)
3236 fclose(trace.output);
3237out:
1302d88e 3238 return err;
514f1c67 3239}
Linux kernel - Deliverables
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