Commit | Line | Data |
---|---|---|
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" |
566a0885 | 37 | #include "callchain.h" |
fd0db102 | 38 | #include "syscalltbl.h" |
96c14451 | 39 | #include "rb_resort.h" |
514f1c67 | 40 | |
fd0db102 | 41 | #include <libaudit.h> /* FIXME: Still needed for audit_errno_to_name */ |
514f1c67 | 42 | #include <stdlib.h> |
8dd2a131 | 43 | #include <linux/err.h> |
997bba8c ACM |
44 | #include <linux/filter.h> |
45 | #include <linux/audit.h> | |
46 | #include <sys/ptrace.h> | |
39878d49 | 47 | #include <linux/random.h> |
c6d4a494 | 48 | #include <linux/stringify.h> |
514f1c67 | 49 | |
c188e7ac ACM |
50 | #ifndef O_CLOEXEC |
51 | # define O_CLOEXEC 02000000 | |
52 | #endif | |
53 | ||
d1d438a3 ACM |
54 | struct trace { |
55 | struct perf_tool tool; | |
fd0db102 | 56 | struct syscalltbl *sctbl; |
d1d438a3 ACM |
57 | struct { |
58 | int max; | |
59 | struct syscall *table; | |
60 | struct { | |
61 | struct perf_evsel *sys_enter, | |
62 | *sys_exit; | |
63 | } events; | |
64 | } syscalls; | |
65 | struct record_opts opts; | |
66 | struct perf_evlist *evlist; | |
67 | struct machine *host; | |
68 | struct thread *current; | |
69 | u64 base_time; | |
70 | FILE *output; | |
71 | unsigned long nr_events; | |
72 | struct strlist *ev_qualifier; | |
73 | struct { | |
74 | size_t nr; | |
75 | int *entries; | |
76 | } ev_qualifier_ids; | |
77 | struct intlist *tid_list; | |
78 | struct intlist *pid_list; | |
79 | struct { | |
80 | size_t nr; | |
81 | pid_t *entries; | |
82 | } filter_pids; | |
83 | double duration_filter; | |
84 | double runtime_ms; | |
85 | struct { | |
86 | u64 vfs_getname, | |
87 | proc_getname; | |
88 | } stats; | |
c6d4a494 | 89 | unsigned int max_stack; |
5cf9c84e | 90 | unsigned int min_stack; |
d1d438a3 ACM |
91 | bool not_ev_qualifier; |
92 | bool live; | |
93 | bool full_time; | |
94 | bool sched; | |
95 | bool multiple_threads; | |
96 | bool summary; | |
97 | bool summary_only; | |
98 | bool show_comm; | |
99 | bool show_tool_stats; | |
100 | bool trace_syscalls; | |
44621819 | 101 | bool kernel_syscallchains; |
d1d438a3 ACM |
102 | bool force; |
103 | bool vfs_getname; | |
104 | int trace_pgfaults; | |
fd0db102 | 105 | int open_id; |
d1d438a3 | 106 | }; |
a1c2552d | 107 | |
77170988 ACM |
108 | struct tp_field { |
109 | int offset; | |
110 | union { | |
111 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
112 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
113 | }; | |
114 | }; | |
115 | ||
116 | #define TP_UINT_FIELD(bits) \ | |
117 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
118 | { \ | |
55d43bca DA |
119 | u##bits value; \ |
120 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
121 | return value; \ | |
77170988 ACM |
122 | } |
123 | ||
124 | TP_UINT_FIELD(8); | |
125 | TP_UINT_FIELD(16); | |
126 | TP_UINT_FIELD(32); | |
127 | TP_UINT_FIELD(64); | |
128 | ||
129 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
130 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
131 | { \ | |
55d43bca DA |
132 | u##bits value; \ |
133 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
134 | return bswap_##bits(value);\ |
135 | } | |
136 | ||
137 | TP_UINT_FIELD__SWAPPED(16); | |
138 | TP_UINT_FIELD__SWAPPED(32); | |
139 | TP_UINT_FIELD__SWAPPED(64); | |
140 | ||
141 | static int tp_field__init_uint(struct tp_field *field, | |
142 | struct format_field *format_field, | |
143 | bool needs_swap) | |
144 | { | |
145 | field->offset = format_field->offset; | |
146 | ||
147 | switch (format_field->size) { | |
148 | case 1: | |
149 | field->integer = tp_field__u8; | |
150 | break; | |
151 | case 2: | |
152 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
153 | break; | |
154 | case 4: | |
155 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
156 | break; | |
157 | case 8: | |
158 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
159 | break; | |
160 | default: | |
161 | return -1; | |
162 | } | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
167 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) | |
168 | { | |
169 | return sample->raw_data + field->offset; | |
170 | } | |
171 | ||
172 | static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field) | |
173 | { | |
174 | field->offset = format_field->offset; | |
175 | field->pointer = tp_field__ptr; | |
176 | return 0; | |
177 | } | |
178 | ||
179 | struct syscall_tp { | |
180 | struct tp_field id; | |
181 | union { | |
182 | struct tp_field args, ret; | |
183 | }; | |
184 | }; | |
185 | ||
186 | static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel, | |
187 | struct tp_field *field, | |
188 | const char *name) | |
189 | { | |
190 | struct format_field *format_field = perf_evsel__field(evsel, name); | |
191 | ||
192 | if (format_field == NULL) | |
193 | return -1; | |
194 | ||
195 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
196 | } | |
197 | ||
198 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
199 | ({ struct syscall_tp *sc = evsel->priv;\ | |
200 | perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) | |
201 | ||
202 | static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel, | |
203 | struct tp_field *field, | |
204 | const char *name) | |
205 | { | |
206 | struct format_field *format_field = perf_evsel__field(evsel, name); | |
207 | ||
208 | if (format_field == NULL) | |
209 | return -1; | |
210 | ||
211 | return tp_field__init_ptr(field, format_field); | |
212 | } | |
213 | ||
214 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
215 | ({ struct syscall_tp *sc = evsel->priv;\ | |
216 | perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) | |
217 | ||
218 | static void perf_evsel__delete_priv(struct perf_evsel *evsel) | |
219 | { | |
04662523 | 220 | zfree(&evsel->priv); |
77170988 ACM |
221 | perf_evsel__delete(evsel); |
222 | } | |
223 | ||
96695d44 NK |
224 | static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler) |
225 | { | |
226 | evsel->priv = malloc(sizeof(struct syscall_tp)); | |
227 | if (evsel->priv != NULL) { | |
228 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) | |
229 | goto out_delete; | |
230 | ||
231 | evsel->handler = handler; | |
232 | return 0; | |
233 | } | |
234 | ||
235 | return -ENOMEM; | |
236 | ||
237 | out_delete: | |
04662523 | 238 | zfree(&evsel->priv); |
96695d44 NK |
239 | return -ENOENT; |
240 | } | |
241 | ||
ef503831 | 242 | static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler) |
77170988 | 243 | { |
ef503831 | 244 | struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); |
77170988 | 245 | |
9aca7f17 | 246 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 247 | if (IS_ERR(evsel)) |
9aca7f17 DA |
248 | evsel = perf_evsel__newtp("syscalls", direction); |
249 | ||
8dd2a131 JO |
250 | if (IS_ERR(evsel)) |
251 | return NULL; | |
252 | ||
253 | if (perf_evsel__init_syscall_tp(evsel, handler)) | |
254 | goto out_delete; | |
77170988 ACM |
255 | |
256 | return evsel; | |
257 | ||
258 | out_delete: | |
259 | perf_evsel__delete_priv(evsel); | |
260 | return NULL; | |
261 | } | |
262 | ||
263 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
264 | ({ struct syscall_tp *fields = evsel->priv; \ | |
265 | fields->name.integer(&fields->name, sample); }) | |
266 | ||
267 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
268 | ({ struct syscall_tp *fields = evsel->priv; \ | |
269 | fields->name.pointer(&fields->name, sample); }) | |
270 | ||
01533e97 ACM |
271 | struct syscall_arg { |
272 | unsigned long val; | |
75b757ca ACM |
273 | struct thread *thread; |
274 | struct trace *trace; | |
1f115cb7 | 275 | void *parm; |
01533e97 ACM |
276 | u8 idx; |
277 | u8 mask; | |
278 | }; | |
279 | ||
1f115cb7 | 280 | struct strarray { |
03e3adc9 | 281 | int offset; |
1f115cb7 ACM |
282 | int nr_entries; |
283 | const char **entries; | |
284 | }; | |
285 | ||
286 | #define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \ | |
287 | .nr_entries = ARRAY_SIZE(array), \ | |
288 | .entries = array, \ | |
289 | } | |
290 | ||
03e3adc9 ACM |
291 | #define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \ |
292 | .offset = off, \ | |
293 | .nr_entries = ARRAY_SIZE(array), \ | |
294 | .entries = array, \ | |
295 | } | |
296 | ||
975b7c2f ACM |
297 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
298 | const char *intfmt, | |
299 | struct syscall_arg *arg) | |
1f115cb7 | 300 | { |
1f115cb7 | 301 | struct strarray *sa = arg->parm; |
03e3adc9 | 302 | int idx = arg->val - sa->offset; |
1f115cb7 ACM |
303 | |
304 | if (idx < 0 || idx >= sa->nr_entries) | |
975b7c2f | 305 | return scnprintf(bf, size, intfmt, arg->val); |
1f115cb7 ACM |
306 | |
307 | return scnprintf(bf, size, "%s", sa->entries[idx]); | |
308 | } | |
309 | ||
975b7c2f ACM |
310 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
311 | struct syscall_arg *arg) | |
312 | { | |
313 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
314 | } | |
315 | ||
1f115cb7 ACM |
316 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
317 | ||
844ae5b4 ACM |
318 | #if defined(__i386__) || defined(__x86_64__) |
319 | /* | |
320 | * FIXME: Make this available to all arches as soon as the ioctl beautifier | |
321 | * gets rewritten to support all arches. | |
322 | */ | |
78645cf3 ACM |
323 | static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size, |
324 | struct syscall_arg *arg) | |
325 | { | |
326 | return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg); | |
327 | } | |
328 | ||
329 | #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray | |
844ae5b4 | 330 | #endif /* defined(__i386__) || defined(__x86_64__) */ |
78645cf3 | 331 | |
75b757ca ACM |
332 | static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, |
333 | struct syscall_arg *arg); | |
334 | ||
335 | #define SCA_FD syscall_arg__scnprintf_fd | |
336 | ||
337 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, | |
338 | struct syscall_arg *arg) | |
339 | { | |
340 | int fd = arg->val; | |
341 | ||
342 | if (fd == AT_FDCWD) | |
343 | return scnprintf(bf, size, "CWD"); | |
344 | ||
345 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
346 | } | |
347 | ||
348 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
349 | ||
350 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
351 | struct syscall_arg *arg); | |
352 | ||
353 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
354 | ||
6e7eeb51 | 355 | static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, |
01533e97 | 356 | struct syscall_arg *arg) |
13d4ff3e | 357 | { |
01533e97 | 358 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
359 | } |
360 | ||
beccb2b5 ACM |
361 | #define SCA_HEX syscall_arg__scnprintf_hex |
362 | ||
a1c2552d ACM |
363 | static size_t syscall_arg__scnprintf_int(char *bf, size_t size, |
364 | struct syscall_arg *arg) | |
365 | { | |
366 | return scnprintf(bf, size, "%d", arg->val); | |
367 | } | |
368 | ||
369 | #define SCA_INT syscall_arg__scnprintf_int | |
370 | ||
729a7841 ACM |
371 | static const char *bpf_cmd[] = { |
372 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
373 | "MAP_GET_NEXT_KEY", "PROG_LOAD", | |
374 | }; | |
375 | static DEFINE_STRARRAY(bpf_cmd); | |
376 | ||
03e3adc9 ACM |
377 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
378 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); | |
eac032c5 | 379 | |
1f115cb7 ACM |
380 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
381 | static DEFINE_STRARRAY(itimers); | |
382 | ||
b62bee1b ACM |
383 | static const char *keyctl_options[] = { |
384 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
385 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
386 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
387 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
388 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
389 | }; | |
390 | static DEFINE_STRARRAY(keyctl_options); | |
391 | ||
efe6b882 ACM |
392 | static const char *whences[] = { "SET", "CUR", "END", |
393 | #ifdef SEEK_DATA | |
394 | "DATA", | |
395 | #endif | |
396 | #ifdef SEEK_HOLE | |
397 | "HOLE", | |
398 | #endif | |
399 | }; | |
400 | static DEFINE_STRARRAY(whences); | |
f9da0b0c | 401 | |
80f587d5 ACM |
402 | static const char *fcntl_cmds[] = { |
403 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
404 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64", | |
405 | "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX", | |
406 | "F_GETOWNER_UIDS", | |
407 | }; | |
408 | static DEFINE_STRARRAY(fcntl_cmds); | |
409 | ||
c045bf02 ACM |
410 | static const char *rlimit_resources[] = { |
411 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
412 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
413 | "RTTIME", | |
414 | }; | |
415 | static DEFINE_STRARRAY(rlimit_resources); | |
416 | ||
eb5b1b14 ACM |
417 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
418 | static DEFINE_STRARRAY(sighow); | |
419 | ||
4f8c1b74 DA |
420 | static const char *clockid[] = { |
421 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
422 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
423 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 DA |
424 | }; |
425 | static DEFINE_STRARRAY(clockid); | |
426 | ||
e10bce81 ACM |
427 | static const char *socket_families[] = { |
428 | "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM", | |
429 | "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI", | |
430 | "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC", | |
431 | "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC", | |
432 | "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF", | |
433 | "ALG", "NFC", "VSOCK", | |
434 | }; | |
435 | static DEFINE_STRARRAY(socket_families); | |
436 | ||
51108999 ACM |
437 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
438 | struct syscall_arg *arg) | |
439 | { | |
440 | size_t printed = 0; | |
441 | int mode = arg->val; | |
442 | ||
443 | if (mode == F_OK) /* 0 */ | |
444 | return scnprintf(bf, size, "F"); | |
445 | #define P_MODE(n) \ | |
446 | if (mode & n##_OK) { \ | |
447 | printed += scnprintf(bf + printed, size - printed, "%s", #n); \ | |
448 | mode &= ~n##_OK; \ | |
449 | } | |
450 | ||
451 | P_MODE(R); | |
452 | P_MODE(W); | |
453 | P_MODE(X); | |
454 | #undef P_MODE | |
455 | ||
456 | if (mode) | |
457 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
458 | ||
459 | return printed; | |
460 | } | |
461 | ||
462 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
463 | ||
f994592d ACM |
464 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
465 | struct syscall_arg *arg); | |
466 | ||
467 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
468 | ||
46cce19b ACM |
469 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
470 | struct syscall_arg *arg) | |
471 | { | |
472 | int printed = 0, flags = arg->val; | |
473 | ||
474 | #define P_FLAG(n) \ | |
475 | if (flags & O_##n) { \ | |
476 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
477 | flags &= ~O_##n; \ | |
478 | } | |
479 | ||
480 | P_FLAG(CLOEXEC); | |
481 | P_FLAG(NONBLOCK); | |
482 | #undef P_FLAG | |
483 | ||
484 | if (flags) | |
485 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
486 | ||
487 | return printed; | |
488 | } | |
489 | ||
490 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
491 | ||
844ae5b4 ACM |
492 | #if defined(__i386__) || defined(__x86_64__) |
493 | /* | |
494 | * FIXME: Make this available to all arches. | |
495 | */ | |
78645cf3 ACM |
496 | #define TCGETS 0x5401 |
497 | ||
498 | static const char *tioctls[] = { | |
499 | "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW", | |
500 | "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL", | |
501 | "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI", | |
502 | "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC", | |
503 | "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX", | |
504 | "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO", | |
505 | "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK", | |
506 | "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2", | |
507 | "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK", | |
508 | "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG", | |
509 | "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL", | |
510 | [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG", | |
511 | "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS", | |
512 | "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI", | |
513 | "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE", | |
514 | }; | |
515 | ||
516 | static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401); | |
844ae5b4 | 517 | #endif /* defined(__i386__) || defined(__x86_64__) */ |
78645cf3 | 518 | |
a355a61e ACM |
519 | #ifndef GRND_NONBLOCK |
520 | #define GRND_NONBLOCK 0x0001 | |
521 | #endif | |
522 | #ifndef GRND_RANDOM | |
523 | #define GRND_RANDOM 0x0002 | |
524 | #endif | |
525 | ||
39878d49 ACM |
526 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
527 | struct syscall_arg *arg) | |
528 | { | |
529 | int printed = 0, flags = arg->val; | |
530 | ||
531 | #define P_FLAG(n) \ | |
532 | if (flags & GRND_##n) { \ | |
533 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
534 | flags &= ~GRND_##n; \ | |
535 | } | |
536 | ||
537 | P_FLAG(RANDOM); | |
538 | P_FLAG(NONBLOCK); | |
539 | #undef P_FLAG | |
540 | ||
541 | if (flags) | |
542 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
543 | ||
544 | return printed; | |
545 | } | |
546 | ||
547 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
548 | ||
453350dd ACM |
549 | #define STRARRAY(arg, name, array) \ |
550 | .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \ | |
551 | .arg_parm = { [arg] = &strarray__##array, } | |
552 | ||
ea8dc3ce | 553 | #include "trace/beauty/eventfd.c" |
8bf382ce | 554 | #include "trace/beauty/flock.c" |
d5d71e86 | 555 | #include "trace/beauty/futex_op.c" |
df4cb167 | 556 | #include "trace/beauty/mmap.c" |
ba2f22cf | 557 | #include "trace/beauty/mode_t.c" |
a30e6259 | 558 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 559 | #include "trace/beauty/open_flags.c" |
62de344e | 560 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 561 | #include "trace/beauty/pid.c" |
a3bca91f | 562 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 563 | #include "trace/beauty/seccomp.c" |
12199d8e | 564 | #include "trace/beauty/signum.c" |
bbf86c43 | 565 | #include "trace/beauty/socket_type.c" |
7206b900 | 566 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 567 | |
514f1c67 ACM |
568 | static struct syscall_fmt { |
569 | const char *name; | |
aec1930b | 570 | const char *alias; |
01533e97 | 571 | size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg); |
1f115cb7 | 572 | void *arg_parm[6]; |
514f1c67 | 573 | bool errmsg; |
11c8e39f | 574 | bool errpid; |
514f1c67 | 575 | bool timeout; |
04b34729 | 576 | bool hexret; |
514f1c67 | 577 | } syscall_fmts[] = { |
51108999 | 578 | { .name = "access", .errmsg = true, |
12f3ca4f | 579 | .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, }, |
aec1930b | 580 | { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, |
729a7841 | 581 | { .name = "bpf", .errmsg = true, STRARRAY(0, cmd, bpf_cmd), }, |
beccb2b5 ACM |
582 | { .name = "brk", .hexret = true, |
583 | .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, }, | |
12f3ca4f ACM |
584 | { .name = "chdir", .errmsg = true, }, |
585 | { .name = "chmod", .errmsg = true, }, | |
586 | { .name = "chroot", .errmsg = true, }, | |
4f8c1b74 | 587 | { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), }, |
11c8e39f | 588 | { .name = "clone", .errpid = true, }, |
75b757ca | 589 | { .name = "close", .errmsg = true, |
48000a1a | 590 | .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, }, |
a14bb860 | 591 | { .name = "connect", .errmsg = true, }, |
12f3ca4f | 592 | { .name = "creat", .errmsg = true, }, |
b6565c90 ACM |
593 | { .name = "dup", .errmsg = true, }, |
594 | { .name = "dup2", .errmsg = true, }, | |
595 | { .name = "dup3", .errmsg = true, }, | |
453350dd | 596 | { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), }, |
49af9e93 ACM |
597 | { .name = "eventfd2", .errmsg = true, |
598 | .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, }, | |
12f3ca4f | 599 | { .name = "faccessat", .errmsg = true, }, |
b6565c90 ACM |
600 | { .name = "fadvise64", .errmsg = true, }, |
601 | { .name = "fallocate", .errmsg = true, }, | |
602 | { .name = "fchdir", .errmsg = true, }, | |
603 | { .name = "fchmod", .errmsg = true, }, | |
75b757ca | 604 | { .name = "fchmodat", .errmsg = true, |
12f3ca4f | 605 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
b6565c90 | 606 | { .name = "fchown", .errmsg = true, }, |
75b757ca | 607 | { .name = "fchownat", .errmsg = true, |
12f3ca4f | 608 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
75b757ca | 609 | { .name = "fcntl", .errmsg = true, |
b6565c90 | 610 | .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ }, |
75b757ca | 611 | .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, }, |
b6565c90 | 612 | { .name = "fdatasync", .errmsg = true, }, |
5cea6ff2 | 613 | { .name = "flock", .errmsg = true, |
b6565c90 ACM |
614 | .arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, }, |
615 | { .name = "fsetxattr", .errmsg = true, }, | |
616 | { .name = "fstat", .errmsg = true, .alias = "newfstat", }, | |
12f3ca4f | 617 | { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, |
b6565c90 ACM |
618 | { .name = "fstatfs", .errmsg = true, }, |
619 | { .name = "fsync", .errmsg = true, }, | |
620 | { .name = "ftruncate", .errmsg = true, }, | |
f9da0b0c ACM |
621 | { .name = "futex", .errmsg = true, |
622 | .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, }, | |
75b757ca | 623 | { .name = "futimesat", .errmsg = true, |
12f3ca4f | 624 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
b6565c90 ACM |
625 | { .name = "getdents", .errmsg = true, }, |
626 | { .name = "getdents64", .errmsg = true, }, | |
453350dd | 627 | { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), }, |
c65f1070 | 628 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 629 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 630 | { .name = "getppid", .errpid = true, }, |
39878d49 ACM |
631 | { .name = "getrandom", .errmsg = true, |
632 | .arg_scnprintf = { [2] = SCA_GETRANDOM_FLAGS, /* flags */ }, }, | |
453350dd | 633 | { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, |
12f3ca4f ACM |
634 | { .name = "getxattr", .errmsg = true, }, |
635 | { .name = "inotify_add_watch", .errmsg = true, }, | |
beccb2b5 | 636 | { .name = "ioctl", .errmsg = true, |
b6565c90 | 637 | .arg_scnprintf = { |
844ae5b4 ACM |
638 | #if defined(__i386__) || defined(__x86_64__) |
639 | /* | |
640 | * FIXME: Make this available to all arches. | |
641 | */ | |
78645cf3 ACM |
642 | [1] = SCA_STRHEXARRAY, /* cmd */ |
643 | [2] = SCA_HEX, /* arg */ }, | |
644 | .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, }, | |
844ae5b4 ACM |
645 | #else |
646 | [2] = SCA_HEX, /* arg */ }, }, | |
647 | #endif | |
b62bee1b | 648 | { .name = "keyctl", .errmsg = true, STRARRAY(0, option, keyctl_options), }, |
8bad5b0a ACM |
649 | { .name = "kill", .errmsg = true, |
650 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
12f3ca4f ACM |
651 | { .name = "lchown", .errmsg = true, }, |
652 | { .name = "lgetxattr", .errmsg = true, }, | |
75b757ca | 653 | { .name = "linkat", .errmsg = true, |
48000a1a | 654 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
12f3ca4f ACM |
655 | { .name = "listxattr", .errmsg = true, }, |
656 | { .name = "llistxattr", .errmsg = true, }, | |
657 | { .name = "lremovexattr", .errmsg = true, }, | |
75b757ca | 658 | { .name = "lseek", .errmsg = true, |
b6565c90 | 659 | .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ }, |
75b757ca | 660 | .arg_parm = { [2] = &strarray__whences, /* whence */ }, }, |
12f3ca4f ACM |
661 | { .name = "lsetxattr", .errmsg = true, }, |
662 | { .name = "lstat", .errmsg = true, .alias = "newlstat", }, | |
663 | { .name = "lsxattr", .errmsg = true, }, | |
9e9716d1 ACM |
664 | { .name = "madvise", .errmsg = true, |
665 | .arg_scnprintf = { [0] = SCA_HEX, /* start */ | |
666 | [2] = SCA_MADV_BHV, /* behavior */ }, }, | |
12f3ca4f | 667 | { .name = "mkdir", .errmsg = true, }, |
75b757ca | 668 | { .name = "mkdirat", .errmsg = true, |
12f3ca4f ACM |
669 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
670 | { .name = "mknod", .errmsg = true, }, | |
75b757ca | 671 | { .name = "mknodat", .errmsg = true, |
12f3ca4f | 672 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
3d903aa7 ACM |
673 | { .name = "mlock", .errmsg = true, |
674 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
675 | { .name = "mlockall", .errmsg = true, | |
676 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
beccb2b5 | 677 | { .name = "mmap", .hexret = true, |
ae685380 | 678 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ |
941557e0 | 679 | [2] = SCA_MMAP_PROT, /* prot */ |
b6565c90 | 680 | [3] = SCA_MMAP_FLAGS, /* flags */ }, }, |
beccb2b5 | 681 | { .name = "mprotect", .errmsg = true, |
ae685380 ACM |
682 | .arg_scnprintf = { [0] = SCA_HEX, /* start */ |
683 | [2] = SCA_MMAP_PROT, /* prot */ }, }, | |
090389b6 ACM |
684 | { .name = "mq_unlink", .errmsg = true, |
685 | .arg_scnprintf = { [0] = SCA_FILENAME, /* u_name */ }, }, | |
ae685380 ACM |
686 | { .name = "mremap", .hexret = true, |
687 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ | |
86998dda | 688 | [3] = SCA_MREMAP_FLAGS, /* flags */ |
ae685380 | 689 | [4] = SCA_HEX, /* new_addr */ }, }, |
3d903aa7 ACM |
690 | { .name = "munlock", .errmsg = true, |
691 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
beccb2b5 ACM |
692 | { .name = "munmap", .errmsg = true, |
693 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
75b757ca | 694 | { .name = "name_to_handle_at", .errmsg = true, |
48000a1a | 695 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
75b757ca | 696 | { .name = "newfstatat", .errmsg = true, |
12f3ca4f | 697 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
be65a89a | 698 | { .name = "open", .errmsg = true, |
12f3ca4f | 699 | .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, }, |
31cd3855 | 700 | { .name = "open_by_handle_at", .errmsg = true, |
75b757ca ACM |
701 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ |
702 | [2] = SCA_OPEN_FLAGS, /* flags */ }, }, | |
31cd3855 | 703 | { .name = "openat", .errmsg = true, |
75b757ca ACM |
704 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ |
705 | [2] = SCA_OPEN_FLAGS, /* flags */ }, }, | |
a1c2552d | 706 | { .name = "perf_event_open", .errmsg = true, |
ccd9b2a7 | 707 | .arg_scnprintf = { [2] = SCA_INT, /* cpu */ |
a1c2552d ACM |
708 | [3] = SCA_FD, /* group_fd */ |
709 | [4] = SCA_PERF_FLAGS, /* flags */ }, }, | |
46cce19b ACM |
710 | { .name = "pipe2", .errmsg = true, |
711 | .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, }, | |
aec1930b ACM |
712 | { .name = "poll", .errmsg = true, .timeout = true, }, |
713 | { .name = "ppoll", .errmsg = true, .timeout = true, }, | |
b6565c90 ACM |
714 | { .name = "pread", .errmsg = true, .alias = "pread64", }, |
715 | { .name = "preadv", .errmsg = true, .alias = "pread", }, | |
453350dd | 716 | { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), }, |
b6565c90 ACM |
717 | { .name = "pwrite", .errmsg = true, .alias = "pwrite64", }, |
718 | { .name = "pwritev", .errmsg = true, }, | |
719 | { .name = "read", .errmsg = true, }, | |
12f3ca4f | 720 | { .name = "readlink", .errmsg = true, }, |
75b757ca | 721 | { .name = "readlinkat", .errmsg = true, |
12f3ca4f | 722 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
b6565c90 | 723 | { .name = "readv", .errmsg = true, }, |
b2cc99fd | 724 | { .name = "recvfrom", .errmsg = true, |
b6565c90 | 725 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 726 | { .name = "recvmmsg", .errmsg = true, |
b6565c90 | 727 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 728 | { .name = "recvmsg", .errmsg = true, |
b6565c90 | 729 | .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, |
12f3ca4f | 730 | { .name = "removexattr", .errmsg = true, }, |
75b757ca | 731 | { .name = "renameat", .errmsg = true, |
48000a1a | 732 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
12f3ca4f | 733 | { .name = "rmdir", .errmsg = true, }, |
8bad5b0a ACM |
734 | { .name = "rt_sigaction", .errmsg = true, |
735 | .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, }, | |
453350dd | 736 | { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), }, |
8bad5b0a ACM |
737 | { .name = "rt_sigqueueinfo", .errmsg = true, |
738 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
739 | { .name = "rt_tgsigqueueinfo", .errmsg = true, | |
740 | .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, | |
a3bca91f ACM |
741 | { .name = "sched_setscheduler", .errmsg = true, |
742 | .arg_scnprintf = { [1] = SCA_SCHED_POLICY, /* policy */ }, }, | |
997bba8c ACM |
743 | { .name = "seccomp", .errmsg = true, |
744 | .arg_scnprintf = { [0] = SCA_SECCOMP_OP, /* op */ | |
745 | [1] = SCA_SECCOMP_FLAGS, /* flags */ }, }, | |
aec1930b | 746 | { .name = "select", .errmsg = true, .timeout = true, }, |
b2cc99fd | 747 | { .name = "sendmmsg", .errmsg = true, |
b6565c90 | 748 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 749 | { .name = "sendmsg", .errmsg = true, |
b6565c90 | 750 | .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 751 | { .name = "sendto", .errmsg = true, |
b6565c90 | 752 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
c65f1070 | 753 | { .name = "set_tid_address", .errpid = true, }, |
453350dd | 754 | { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), }, |
d1d438a3 | 755 | { .name = "setpgid", .errmsg = true, }, |
453350dd | 756 | { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, |
12f3ca4f | 757 | { .name = "setxattr", .errmsg = true, }, |
b6565c90 | 758 | { .name = "shutdown", .errmsg = true, }, |
e10bce81 | 759 | { .name = "socket", .errmsg = true, |
a28b24b2 ACM |
760 | .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ |
761 | [1] = SCA_SK_TYPE, /* type */ }, | |
07120aa5 ACM |
762 | .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, |
763 | { .name = "socketpair", .errmsg = true, | |
764 | .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ | |
765 | [1] = SCA_SK_TYPE, /* type */ }, | |
e10bce81 | 766 | .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, |
12f3ca4f ACM |
767 | { .name = "stat", .errmsg = true, .alias = "newstat", }, |
768 | { .name = "statfs", .errmsg = true, }, | |
34221118 ACM |
769 | { .name = "swapoff", .errmsg = true, |
770 | .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, }, | |
771 | { .name = "swapon", .errmsg = true, | |
772 | .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, }, | |
75b757ca | 773 | { .name = "symlinkat", .errmsg = true, |
48000a1a | 774 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
8bad5b0a ACM |
775 | { .name = "tgkill", .errmsg = true, |
776 | .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, | |
777 | { .name = "tkill", .errmsg = true, | |
778 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
12f3ca4f | 779 | { .name = "truncate", .errmsg = true, }, |
e5959683 | 780 | { .name = "uname", .errmsg = true, .alias = "newuname", }, |
75b757ca | 781 | { .name = "unlinkat", .errmsg = true, |
12f3ca4f ACM |
782 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
783 | { .name = "utime", .errmsg = true, }, | |
75b757ca | 784 | { .name = "utimensat", .errmsg = true, |
12f3ca4f ACM |
785 | .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, }, |
786 | { .name = "utimes", .errmsg = true, }, | |
b6565c90 | 787 | { .name = "vmsplice", .errmsg = true, }, |
11c8e39f | 788 | { .name = "wait4", .errpid = true, |
7206b900 | 789 | .arg_scnprintf = { [2] = SCA_WAITID_OPTIONS, /* options */ }, }, |
11c8e39f | 790 | { .name = "waitid", .errpid = true, |
7206b900 | 791 | .arg_scnprintf = { [3] = SCA_WAITID_OPTIONS, /* options */ }, }, |
b6565c90 ACM |
792 | { .name = "write", .errmsg = true, }, |
793 | { .name = "writev", .errmsg = true, }, | |
514f1c67 ACM |
794 | }; |
795 | ||
796 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
797 | { | |
798 | const struct syscall_fmt *fmt = fmtp; | |
799 | return strcmp(name, fmt->name); | |
800 | } | |
801 | ||
802 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
803 | { | |
804 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
805 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
806 | } | |
807 | ||
808 | struct syscall { | |
809 | struct event_format *tp_format; | |
f208bd8d ACM |
810 | int nr_args; |
811 | struct format_field *args; | |
514f1c67 | 812 | const char *name; |
5089f20e | 813 | bool is_exit; |
514f1c67 | 814 | struct syscall_fmt *fmt; |
01533e97 | 815 | size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
1f115cb7 | 816 | void **arg_parm; |
514f1c67 ACM |
817 | }; |
818 | ||
60c907ab ACM |
819 | static size_t fprintf_duration(unsigned long t, FILE *fp) |
820 | { | |
821 | double duration = (double)t / NSEC_PER_MSEC; | |
822 | size_t printed = fprintf(fp, "("); | |
823 | ||
824 | if (duration >= 1.0) | |
825 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); | |
826 | else if (duration >= 0.01) | |
827 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
828 | else | |
829 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 830 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
831 | } |
832 | ||
f994592d ACM |
833 | /** |
834 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
835 | * filename.entry_str_pos: Where to insert the string translated from | |
836 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
837 | */ | |
752fde44 ACM |
838 | struct thread_trace { |
839 | u64 entry_time; | |
840 | u64 exit_time; | |
841 | bool entry_pending; | |
efd5745e | 842 | unsigned long nr_events; |
a2ea67d7 | 843 | unsigned long pfmaj, pfmin; |
752fde44 | 844 | char *entry_str; |
1302d88e | 845 | double runtime_ms; |
f994592d ACM |
846 | struct { |
847 | unsigned long ptr; | |
7f4f8001 ACM |
848 | short int entry_str_pos; |
849 | bool pending_open; | |
850 | unsigned int namelen; | |
851 | char *name; | |
f994592d | 852 | } filename; |
75b757ca ACM |
853 | struct { |
854 | int max; | |
855 | char **table; | |
856 | } paths; | |
bf2575c1 DA |
857 | |
858 | struct intlist *syscall_stats; | |
752fde44 ACM |
859 | }; |
860 | ||
861 | static struct thread_trace *thread_trace__new(void) | |
862 | { | |
75b757ca ACM |
863 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
864 | ||
865 | if (ttrace) | |
866 | ttrace->paths.max = -1; | |
867 | ||
bf2575c1 DA |
868 | ttrace->syscall_stats = intlist__new(NULL); |
869 | ||
75b757ca | 870 | return ttrace; |
752fde44 ACM |
871 | } |
872 | ||
c24ff998 | 873 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 874 | { |
efd5745e ACM |
875 | struct thread_trace *ttrace; |
876 | ||
752fde44 ACM |
877 | if (thread == NULL) |
878 | goto fail; | |
879 | ||
89dceb22 NK |
880 | if (thread__priv(thread) == NULL) |
881 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 882 | |
89dceb22 | 883 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
884 | goto fail; |
885 | ||
89dceb22 | 886 | ttrace = thread__priv(thread); |
efd5745e ACM |
887 | ++ttrace->nr_events; |
888 | ||
889 | return ttrace; | |
752fde44 | 890 | fail: |
c24ff998 | 891 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
892 | "WARNING: not enough memory, dropping samples!\n"); |
893 | return NULL; | |
894 | } | |
895 | ||
598d02c5 SF |
896 | #define TRACE_PFMAJ (1 << 0) |
897 | #define TRACE_PFMIN (1 << 1) | |
898 | ||
e4d44e83 ACM |
899 | static const size_t trace__entry_str_size = 2048; |
900 | ||
97119f37 | 901 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
75b757ca | 902 | { |
89dceb22 | 903 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
904 | |
905 | if (fd > ttrace->paths.max) { | |
906 | char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *)); | |
907 | ||
908 | if (npath == NULL) | |
909 | return -1; | |
910 | ||
911 | if (ttrace->paths.max != -1) { | |
912 | memset(npath + ttrace->paths.max + 1, 0, | |
913 | (fd - ttrace->paths.max) * sizeof(char *)); | |
914 | } else { | |
915 | memset(npath, 0, (fd + 1) * sizeof(char *)); | |
916 | } | |
917 | ||
918 | ttrace->paths.table = npath; | |
919 | ttrace->paths.max = fd; | |
920 | } | |
921 | ||
922 | ttrace->paths.table[fd] = strdup(pathname); | |
923 | ||
924 | return ttrace->paths.table[fd] != NULL ? 0 : -1; | |
925 | } | |
926 | ||
97119f37 ACM |
927 | static int thread__read_fd_path(struct thread *thread, int fd) |
928 | { | |
929 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
930 | struct stat st; | |
931 | int ret; | |
932 | ||
933 | if (thread->pid_ == thread->tid) { | |
934 | scnprintf(linkname, sizeof(linkname), | |
935 | "/proc/%d/fd/%d", thread->pid_, fd); | |
936 | } else { | |
937 | scnprintf(linkname, sizeof(linkname), | |
938 | "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); | |
939 | } | |
940 | ||
941 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
942 | return -1; | |
943 | ||
944 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
945 | ||
946 | if (ret < 0 || ret > st.st_size) | |
947 | return -1; | |
948 | ||
949 | pathname[ret] = '\0'; | |
950 | return trace__set_fd_pathname(thread, fd, pathname); | |
951 | } | |
952 | ||
c522739d ACM |
953 | static const char *thread__fd_path(struct thread *thread, int fd, |
954 | struct trace *trace) | |
75b757ca | 955 | { |
89dceb22 | 956 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
957 | |
958 | if (ttrace == NULL) | |
959 | return NULL; | |
960 | ||
961 | if (fd < 0) | |
962 | return NULL; | |
963 | ||
cdcd1e6b | 964 | if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) { |
c522739d ACM |
965 | if (!trace->live) |
966 | return NULL; | |
967 | ++trace->stats.proc_getname; | |
cdcd1e6b | 968 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
969 | return NULL; |
970 | } | |
75b757ca ACM |
971 | |
972 | return ttrace->paths.table[fd]; | |
973 | } | |
974 | ||
975 | static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, | |
976 | struct syscall_arg *arg) | |
977 | { | |
978 | int fd = arg->val; | |
979 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 980 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
981 | |
982 | if (path) | |
983 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
984 | ||
985 | return printed; | |
986 | } | |
987 | ||
988 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
989 | struct syscall_arg *arg) | |
990 | { | |
991 | int fd = arg->val; | |
992 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 993 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 994 | |
04662523 ACM |
995 | if (ttrace && fd >= 0 && fd <= ttrace->paths.max) |
996 | zfree(&ttrace->paths.table[fd]); | |
75b757ca ACM |
997 | |
998 | return printed; | |
999 | } | |
1000 | ||
f994592d ACM |
1001 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1002 | unsigned long ptr) | |
1003 | { | |
1004 | struct thread_trace *ttrace = thread__priv(thread); | |
1005 | ||
1006 | ttrace->filename.ptr = ptr; | |
1007 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1008 | } | |
1009 | ||
1010 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, | |
1011 | struct syscall_arg *arg) | |
1012 | { | |
1013 | unsigned long ptr = arg->val; | |
1014 | ||
1015 | if (!arg->trace->vfs_getname) | |
1016 | return scnprintf(bf, size, "%#x", ptr); | |
1017 | ||
1018 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1019 | return 0; | |
1020 | } | |
1021 | ||
ae9ed035 ACM |
1022 | static bool trace__filter_duration(struct trace *trace, double t) |
1023 | { | |
1024 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1025 | } | |
1026 | ||
752fde44 ACM |
1027 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
1028 | { | |
1029 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1030 | ||
60c907ab | 1031 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1032 | } |
1033 | ||
f15eb531 | 1034 | static bool done = false; |
ba209f85 | 1035 | static bool interrupted = false; |
f15eb531 | 1036 | |
ba209f85 | 1037 | static void sig_handler(int sig) |
f15eb531 NK |
1038 | { |
1039 | done = true; | |
ba209f85 | 1040 | interrupted = sig == SIGINT; |
f15eb531 NK |
1041 | } |
1042 | ||
752fde44 | 1043 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
60c907ab | 1044 | u64 duration, u64 tstamp, FILE *fp) |
752fde44 ACM |
1045 | { |
1046 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
60c907ab | 1047 | printed += fprintf_duration(duration, fp); |
752fde44 | 1048 | |
50c95cbd ACM |
1049 | if (trace->multiple_threads) { |
1050 | if (trace->show_comm) | |
1902efe7 | 1051 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
38051234 | 1052 | printed += fprintf(fp, "%d ", thread->tid); |
50c95cbd | 1053 | } |
752fde44 ACM |
1054 | |
1055 | return printed; | |
1056 | } | |
1057 | ||
c24ff998 | 1058 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1059 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1060 | { |
1061 | int ret = 0; | |
1062 | ||
1063 | switch (event->header.type) { | |
1064 | case PERF_RECORD_LOST: | |
c24ff998 | 1065 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1066 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1067 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1068 | break; |
752fde44 | 1069 | default: |
162f0bef | 1070 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1071 | break; |
1072 | } | |
1073 | ||
1074 | return ret; | |
1075 | } | |
1076 | ||
c24ff998 | 1077 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1078 | union perf_event *event, |
162f0bef | 1079 | struct perf_sample *sample, |
752fde44 ACM |
1080 | struct machine *machine) |
1081 | { | |
c24ff998 | 1082 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1083 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1084 | } |
1085 | ||
caf8a0d0 ACM |
1086 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1087 | { | |
1088 | struct machine *machine = vmachine; | |
1089 | ||
1090 | if (machine->kptr_restrict_warned) | |
1091 | return NULL; | |
1092 | ||
1093 | if (symbol_conf.kptr_restrict) { | |
1094 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
1095 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
1096 | "Kernel samples will not be resolved.\n"); | |
1097 | machine->kptr_restrict_warned = true; | |
1098 | return NULL; | |
1099 | } | |
1100 | ||
1101 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1102 | } | |
1103 | ||
752fde44 ACM |
1104 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) |
1105 | { | |
0a7e6d1b | 1106 | int err = symbol__init(NULL); |
752fde44 ACM |
1107 | |
1108 | if (err) | |
1109 | return err; | |
1110 | ||
8fb598e5 DA |
1111 | trace->host = machine__new_host(); |
1112 | if (trace->host == NULL) | |
1113 | return -ENOMEM; | |
752fde44 | 1114 | |
caf8a0d0 | 1115 | if (trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr) < 0) |
706c3da4 ACM |
1116 | return -errno; |
1117 | ||
a33fbd56 | 1118 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
9d9cad76 KL |
1119 | evlist->threads, trace__tool_process, false, |
1120 | trace->opts.proc_map_timeout); | |
752fde44 ACM |
1121 | if (err) |
1122 | symbol__exit(); | |
1123 | ||
1124 | return err; | |
1125 | } | |
1126 | ||
13d4ff3e ACM |
1127 | static int syscall__set_arg_fmts(struct syscall *sc) |
1128 | { | |
1129 | struct format_field *field; | |
b6565c90 | 1130 | int idx = 0, len; |
13d4ff3e | 1131 | |
f208bd8d | 1132 | sc->arg_scnprintf = calloc(sc->nr_args, sizeof(void *)); |
13d4ff3e ACM |
1133 | if (sc->arg_scnprintf == NULL) |
1134 | return -1; | |
1135 | ||
1f115cb7 ACM |
1136 | if (sc->fmt) |
1137 | sc->arg_parm = sc->fmt->arg_parm; | |
1138 | ||
f208bd8d | 1139 | for (field = sc->args; field; field = field->next) { |
beccb2b5 ACM |
1140 | if (sc->fmt && sc->fmt->arg_scnprintf[idx]) |
1141 | sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx]; | |
12f3ca4f ACM |
1142 | else if (strcmp(field->type, "const char *") == 0 && |
1143 | (strcmp(field->name, "filename") == 0 || | |
1144 | strcmp(field->name, "path") == 0 || | |
1145 | strcmp(field->name, "pathname") == 0)) | |
1146 | sc->arg_scnprintf[idx] = SCA_FILENAME; | |
beccb2b5 | 1147 | else if (field->flags & FIELD_IS_POINTER) |
13d4ff3e | 1148 | sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex; |
d1d438a3 ACM |
1149 | else if (strcmp(field->type, "pid_t") == 0) |
1150 | sc->arg_scnprintf[idx] = SCA_PID; | |
ba2f22cf ACM |
1151 | else if (strcmp(field->type, "umode_t") == 0) |
1152 | sc->arg_scnprintf[idx] = SCA_MODE_T; | |
b6565c90 ACM |
1153 | else if ((strcmp(field->type, "int") == 0 || |
1154 | strcmp(field->type, "unsigned int") == 0 || | |
1155 | strcmp(field->type, "long") == 0) && | |
1156 | (len = strlen(field->name)) >= 2 && | |
1157 | strcmp(field->name + len - 2, "fd") == 0) { | |
1158 | /* | |
1159 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
1160 | * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c | |
1161 | * 65 int | |
1162 | * 23 unsigned int | |
1163 | * 7 unsigned long | |
1164 | */ | |
1165 | sc->arg_scnprintf[idx] = SCA_FD; | |
1166 | } | |
13d4ff3e ACM |
1167 | ++idx; |
1168 | } | |
1169 | ||
1170 | return 0; | |
1171 | } | |
1172 | ||
514f1c67 ACM |
1173 | static int trace__read_syscall_info(struct trace *trace, int id) |
1174 | { | |
1175 | char tp_name[128]; | |
1176 | struct syscall *sc; | |
fd0db102 | 1177 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 ACM |
1178 | |
1179 | if (name == NULL) | |
1180 | return -1; | |
514f1c67 ACM |
1181 | |
1182 | if (id > trace->syscalls.max) { | |
1183 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
1184 | ||
1185 | if (nsyscalls == NULL) | |
1186 | return -1; | |
1187 | ||
1188 | if (trace->syscalls.max != -1) { | |
1189 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
1190 | (id - trace->syscalls.max) * sizeof(*sc)); | |
1191 | } else { | |
1192 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
1193 | } | |
1194 | ||
1195 | trace->syscalls.table = nsyscalls; | |
1196 | trace->syscalls.max = id; | |
1197 | } | |
1198 | ||
1199 | sc = trace->syscalls.table + id; | |
3a531260 | 1200 | sc->name = name; |
2ae3a312 | 1201 | |
3a531260 | 1202 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1203 | |
aec1930b | 1204 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1205 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1206 | |
8dd2a131 | 1207 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1208 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1209 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1210 | } |
514f1c67 | 1211 | |
8dd2a131 | 1212 | if (IS_ERR(sc->tp_format)) |
13d4ff3e ACM |
1213 | return -1; |
1214 | ||
f208bd8d ACM |
1215 | sc->args = sc->tp_format->format.fields; |
1216 | sc->nr_args = sc->tp_format->format.nr_fields; | |
c42de706 TS |
1217 | /* |
1218 | * We need to check and discard the first variable '__syscall_nr' | |
1219 | * or 'nr' that mean the syscall number. It is needless here. | |
1220 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1221 | */ | |
1222 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1223 | sc->args = sc->args->next; |
1224 | --sc->nr_args; | |
1225 | } | |
1226 | ||
5089f20e ACM |
1227 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
1228 | ||
13d4ff3e | 1229 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1230 | } |
1231 | ||
d0cc439b ACM |
1232 | static int trace__validate_ev_qualifier(struct trace *trace) |
1233 | { | |
8b3ce757 | 1234 | int err = 0, i; |
d0cc439b ACM |
1235 | struct str_node *pos; |
1236 | ||
8b3ce757 ACM |
1237 | trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); |
1238 | trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr * | |
1239 | sizeof(trace->ev_qualifier_ids.entries[0])); | |
1240 | ||
1241 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1242 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1243 | trace->output); | |
1244 | err = -EINVAL; | |
1245 | goto out; | |
1246 | } | |
1247 | ||
1248 | i = 0; | |
1249 | ||
d0cc439b ACM |
1250 | strlist__for_each(pos, trace->ev_qualifier) { |
1251 | const char *sc = pos->s; | |
fd0db102 | 1252 | int id = syscalltbl__id(trace->sctbl, sc); |
d0cc439b | 1253 | |
8b3ce757 | 1254 | if (id < 0) { |
d0cc439b ACM |
1255 | if (err == 0) { |
1256 | fputs("Error:\tInvalid syscall ", trace->output); | |
1257 | err = -EINVAL; | |
1258 | } else { | |
1259 | fputs(", ", trace->output); | |
1260 | } | |
1261 | ||
1262 | fputs(sc, trace->output); | |
1263 | } | |
8b3ce757 ACM |
1264 | |
1265 | trace->ev_qualifier_ids.entries[i++] = id; | |
d0cc439b ACM |
1266 | } |
1267 | ||
1268 | if (err < 0) { | |
1269 | fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" | |
1270 | "\nHint:\tand: 'man syscalls'\n", trace->output); | |
8b3ce757 ACM |
1271 | zfree(&trace->ev_qualifier_ids.entries); |
1272 | trace->ev_qualifier_ids.nr = 0; | |
d0cc439b | 1273 | } |
8b3ce757 | 1274 | out: |
d0cc439b ACM |
1275 | return err; |
1276 | } | |
1277 | ||
55d43bca DA |
1278 | /* |
1279 | * args is to be interpreted as a series of longs but we need to handle | |
1280 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1281 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1282 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1283 | * variable to read it. Most notably this avoids extended load instructions | |
1284 | * on unaligned addresses | |
1285 | */ | |
1286 | ||
752fde44 | 1287 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
55d43bca | 1288 | unsigned char *args, struct trace *trace, |
75b757ca | 1289 | struct thread *thread) |
514f1c67 | 1290 | { |
514f1c67 | 1291 | size_t printed = 0; |
55d43bca DA |
1292 | unsigned char *p; |
1293 | unsigned long val; | |
514f1c67 | 1294 | |
f208bd8d | 1295 | if (sc->args != NULL) { |
514f1c67 | 1296 | struct format_field *field; |
01533e97 ACM |
1297 | u8 bit = 1; |
1298 | struct syscall_arg arg = { | |
75b757ca ACM |
1299 | .idx = 0, |
1300 | .mask = 0, | |
1301 | .trace = trace, | |
1302 | .thread = thread, | |
01533e97 | 1303 | }; |
6e7eeb51 | 1304 | |
f208bd8d | 1305 | for (field = sc->args; field; |
01533e97 ACM |
1306 | field = field->next, ++arg.idx, bit <<= 1) { |
1307 | if (arg.mask & bit) | |
6e7eeb51 | 1308 | continue; |
55d43bca DA |
1309 | |
1310 | /* special care for unaligned accesses */ | |
1311 | p = args + sizeof(unsigned long) * arg.idx; | |
1312 | memcpy(&val, p, sizeof(val)); | |
1313 | ||
4aa58232 ACM |
1314 | /* |
1315 | * Suppress this argument if its value is zero and | |
1316 | * and we don't have a string associated in an | |
1317 | * strarray for it. | |
1318 | */ | |
55d43bca | 1319 | if (val == 0 && |
4aa58232 ACM |
1320 | !(sc->arg_scnprintf && |
1321 | sc->arg_scnprintf[arg.idx] == SCA_STRARRAY && | |
1322 | sc->arg_parm[arg.idx])) | |
22ae5cf1 ACM |
1323 | continue; |
1324 | ||
752fde44 | 1325 | printed += scnprintf(bf + printed, size - printed, |
13d4ff3e | 1326 | "%s%s: ", printed ? ", " : "", field->name); |
01533e97 | 1327 | if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) { |
55d43bca | 1328 | arg.val = val; |
1f115cb7 ACM |
1329 | if (sc->arg_parm) |
1330 | arg.parm = sc->arg_parm[arg.idx]; | |
01533e97 ACM |
1331 | printed += sc->arg_scnprintf[arg.idx](bf + printed, |
1332 | size - printed, &arg); | |
6e7eeb51 | 1333 | } else { |
13d4ff3e | 1334 | printed += scnprintf(bf + printed, size - printed, |
55d43bca | 1335 | "%ld", val); |
6e7eeb51 | 1336 | } |
514f1c67 | 1337 | } |
4c4d6e51 ACM |
1338 | } else if (IS_ERR(sc->tp_format)) { |
1339 | /* | |
1340 | * If we managed to read the tracepoint /format file, then we | |
1341 | * may end up not having any args, like with gettid(), so only | |
1342 | * print the raw args when we didn't manage to read it. | |
1343 | */ | |
01533e97 ACM |
1344 | int i = 0; |
1345 | ||
514f1c67 | 1346 | while (i < 6) { |
55d43bca DA |
1347 | /* special care for unaligned accesses */ |
1348 | p = args + sizeof(unsigned long) * i; | |
1349 | memcpy(&val, p, sizeof(val)); | |
752fde44 ACM |
1350 | printed += scnprintf(bf + printed, size - printed, |
1351 | "%sarg%d: %ld", | |
55d43bca | 1352 | printed ? ", " : "", i, val); |
514f1c67 ACM |
1353 | ++i; |
1354 | } | |
1355 | } | |
1356 | ||
1357 | return printed; | |
1358 | } | |
1359 | ||
ba3d7dee | 1360 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1361 | union perf_event *event, |
ba3d7dee ACM |
1362 | struct perf_sample *sample); |
1363 | ||
1364 | static struct syscall *trace__syscall_info(struct trace *trace, | |
bf2575c1 | 1365 | struct perf_evsel *evsel, int id) |
ba3d7dee | 1366 | { |
ba3d7dee ACM |
1367 | |
1368 | if (id < 0) { | |
adaa18bf ACM |
1369 | |
1370 | /* | |
1371 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
1372 | * before that, leaving at a higher verbosity level till that is | |
1373 | * explained. Reproduced with plain ftrace with: | |
1374 | * | |
1375 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
1376 | * grep "NR -1 " /t/trace_pipe | |
1377 | * | |
1378 | * After generating some load on the machine. | |
1379 | */ | |
1380 | if (verbose > 1) { | |
1381 | static u64 n; | |
1382 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
1383 | id, perf_evsel__name(evsel), ++n); | |
1384 | } | |
ba3d7dee ACM |
1385 | return NULL; |
1386 | } | |
1387 | ||
1388 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
1389 | trace__read_syscall_info(trace, id)) | |
1390 | goto out_cant_read; | |
1391 | ||
1392 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
1393 | goto out_cant_read; | |
1394 | ||
1395 | return &trace->syscalls.table[id]; | |
1396 | ||
1397 | out_cant_read: | |
7c304ee0 ACM |
1398 | if (verbose) { |
1399 | fprintf(trace->output, "Problems reading syscall %d", id); | |
1400 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
1401 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
1402 | fputs(" information\n", trace->output); | |
1403 | } | |
ba3d7dee ACM |
1404 | return NULL; |
1405 | } | |
1406 | ||
bf2575c1 DA |
1407 | static void thread__update_stats(struct thread_trace *ttrace, |
1408 | int id, struct perf_sample *sample) | |
1409 | { | |
1410 | struct int_node *inode; | |
1411 | struct stats *stats; | |
1412 | u64 duration = 0; | |
1413 | ||
1414 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
1415 | if (inode == NULL) | |
1416 | return; | |
1417 | ||
1418 | stats = inode->priv; | |
1419 | if (stats == NULL) { | |
1420 | stats = malloc(sizeof(struct stats)); | |
1421 | if (stats == NULL) | |
1422 | return; | |
1423 | init_stats(stats); | |
1424 | inode->priv = stats; | |
1425 | } | |
1426 | ||
1427 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
1428 | duration = sample->time - ttrace->entry_time; | |
1429 | ||
1430 | update_stats(stats, duration); | |
1431 | } | |
1432 | ||
e596663e ACM |
1433 | static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample) |
1434 | { | |
1435 | struct thread_trace *ttrace; | |
1436 | u64 duration; | |
1437 | size_t printed; | |
1438 | ||
1439 | if (trace->current == NULL) | |
1440 | return 0; | |
1441 | ||
1442 | ttrace = thread__priv(trace->current); | |
1443 | ||
1444 | if (!ttrace->entry_pending) | |
1445 | return 0; | |
1446 | ||
1447 | duration = sample->time - ttrace->entry_time; | |
1448 | ||
1449 | printed = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output); | |
1450 | printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str); | |
1451 | ttrace->entry_pending = false; | |
1452 | ||
1453 | return printed; | |
1454 | } | |
1455 | ||
ba3d7dee | 1456 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1457 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1458 | struct perf_sample *sample) |
1459 | { | |
752fde44 | 1460 | char *msg; |
ba3d7dee | 1461 | void *args; |
752fde44 | 1462 | size_t printed = 0; |
2ae3a312 | 1463 | struct thread *thread; |
b91fc39f | 1464 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
bf2575c1 | 1465 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1466 | struct thread_trace *ttrace; |
1467 | ||
1468 | if (sc == NULL) | |
1469 | return -1; | |
ba3d7dee | 1470 | |
8fb598e5 | 1471 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1472 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1473 | if (ttrace == NULL) |
b91fc39f | 1474 | goto out_put; |
ba3d7dee | 1475 | |
77170988 | 1476 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
1477 | |
1478 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 1479 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 1480 | if (!ttrace->entry_str) |
b91fc39f | 1481 | goto out_put; |
752fde44 ACM |
1482 | } |
1483 | ||
5cf9c84e | 1484 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
6ebad5c1 | 1485 | trace__printf_interrupted_entry(trace, sample); |
e596663e | 1486 | |
752fde44 ACM |
1487 | ttrace->entry_time = sample->time; |
1488 | msg = ttrace->entry_str; | |
e4d44e83 | 1489 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 1490 | |
e4d44e83 | 1491 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
75b757ca | 1492 | args, trace, thread); |
752fde44 | 1493 | |
5089f20e | 1494 | if (sc->is_exit) { |
5cf9c84e | 1495 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) { |
c24ff998 | 1496 | trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output); |
c008f78f | 1497 | fprintf(trace->output, "%-70s)\n", ttrace->entry_str); |
ae9ed035 | 1498 | } |
7f4f8001 | 1499 | } else { |
752fde44 | 1500 | ttrace->entry_pending = true; |
7f4f8001 ACM |
1501 | /* See trace__vfs_getname & trace__sys_exit */ |
1502 | ttrace->filename.pending_open = false; | |
1503 | } | |
ba3d7dee | 1504 | |
f3b623b8 ACM |
1505 | if (trace->current != thread) { |
1506 | thread__put(trace->current); | |
1507 | trace->current = thread__get(thread); | |
1508 | } | |
b91fc39f ACM |
1509 | err = 0; |
1510 | out_put: | |
1511 | thread__put(thread); | |
1512 | return err; | |
ba3d7dee ACM |
1513 | } |
1514 | ||
5cf9c84e ACM |
1515 | static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evsel, |
1516 | struct perf_sample *sample, | |
1517 | struct callchain_cursor *cursor) | |
202ff968 ACM |
1518 | { |
1519 | struct addr_location al; | |
5cf9c84e ACM |
1520 | |
1521 | if (machine__resolve(trace->host, &al, sample) < 0 || | |
1522 | thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, trace->max_stack)) | |
1523 | return -1; | |
1524 | ||
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
1529 | { | |
202ff968 | 1530 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
1531 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
1532 | EVSEL__PRINT_DSO | | |
1533 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 1534 | |
d327e60c | 1535 | return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output); |
202ff968 ACM |
1536 | } |
1537 | ||
ba3d7dee | 1538 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1539 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1540 | struct perf_sample *sample) |
1541 | { | |
2c82c3ad | 1542 | long ret; |
60c907ab | 1543 | u64 duration = 0; |
2ae3a312 | 1544 | struct thread *thread; |
5cf9c84e | 1545 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0; |
bf2575c1 | 1546 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1547 | struct thread_trace *ttrace; |
1548 | ||
1549 | if (sc == NULL) | |
1550 | return -1; | |
ba3d7dee | 1551 | |
8fb598e5 | 1552 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1553 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1554 | if (ttrace == NULL) |
b91fc39f | 1555 | goto out_put; |
ba3d7dee | 1556 | |
bf2575c1 DA |
1557 | if (trace->summary) |
1558 | thread__update_stats(ttrace, id, sample); | |
1559 | ||
77170988 | 1560 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 1561 | |
fd0db102 | 1562 | if (id == trace->open_id && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
1563 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
1564 | ttrace->filename.pending_open = false; | |
c522739d ACM |
1565 | ++trace->stats.vfs_getname; |
1566 | } | |
1567 | ||
752fde44 ACM |
1568 | ttrace->exit_time = sample->time; |
1569 | ||
ae9ed035 | 1570 | if (ttrace->entry_time) { |
60c907ab | 1571 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
1572 | if (trace__filter_duration(trace, duration)) |
1573 | goto out; | |
1574 | } else if (trace->duration_filter) | |
1575 | goto out; | |
60c907ab | 1576 | |
5cf9c84e ACM |
1577 | if (sample->callchain) { |
1578 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1579 | if (callchain_ret == 0) { | |
1580 | if (callchain_cursor.nr < trace->min_stack) | |
1581 | goto out; | |
1582 | callchain_ret = 1; | |
1583 | } | |
1584 | } | |
1585 | ||
fd2eabaf DA |
1586 | if (trace->summary_only) |
1587 | goto out; | |
1588 | ||
c24ff998 | 1589 | trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output); |
752fde44 ACM |
1590 | |
1591 | if (ttrace->entry_pending) { | |
c24ff998 | 1592 | fprintf(trace->output, "%-70s", ttrace->entry_str); |
752fde44 | 1593 | } else { |
c24ff998 ACM |
1594 | fprintf(trace->output, " ... ["); |
1595 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); | |
1596 | fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
1597 | } |
1598 | ||
da3c9a44 ACM |
1599 | if (sc->fmt == NULL) { |
1600 | signed_print: | |
2c82c3ad | 1601 | fprintf(trace->output, ") = %ld", ret); |
11c8e39f | 1602 | } else if (ret < 0 && (sc->fmt->errmsg || sc->fmt->errpid)) { |
942a91ed | 1603 | char bf[STRERR_BUFSIZE]; |
ba3d7dee ACM |
1604 | const char *emsg = strerror_r(-ret, bf, sizeof(bf)), |
1605 | *e = audit_errno_to_name(-ret); | |
1606 | ||
c24ff998 | 1607 | fprintf(trace->output, ") = -1 %s %s", e, emsg); |
da3c9a44 | 1608 | } else if (ret == 0 && sc->fmt->timeout) |
c24ff998 | 1609 | fprintf(trace->output, ") = 0 Timeout"); |
04b34729 | 1610 | else if (sc->fmt->hexret) |
2c82c3ad | 1611 | fprintf(trace->output, ") = %#lx", ret); |
11c8e39f ACM |
1612 | else if (sc->fmt->errpid) { |
1613 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
1614 | ||
1615 | if (child != NULL) { | |
1616 | fprintf(trace->output, ") = %ld", ret); | |
1617 | if (child->comm_set) | |
1618 | fprintf(trace->output, " (%s)", thread__comm_str(child)); | |
1619 | thread__put(child); | |
1620 | } | |
1621 | } else | |
da3c9a44 | 1622 | goto signed_print; |
ba3d7dee | 1623 | |
c24ff998 | 1624 | fputc('\n', trace->output); |
566a0885 | 1625 | |
5cf9c84e ACM |
1626 | if (callchain_ret > 0) |
1627 | trace__fprintf_callchain(trace, sample); | |
1628 | else if (callchain_ret < 0) | |
1629 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
ae9ed035 | 1630 | out: |
752fde44 | 1631 | ttrace->entry_pending = false; |
b91fc39f ACM |
1632 | err = 0; |
1633 | out_put: | |
1634 | thread__put(thread); | |
1635 | return err; | |
ba3d7dee ACM |
1636 | } |
1637 | ||
c522739d | 1638 | static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1639 | union perf_event *event __maybe_unused, |
c522739d ACM |
1640 | struct perf_sample *sample) |
1641 | { | |
f994592d ACM |
1642 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
1643 | struct thread_trace *ttrace; | |
1644 | size_t filename_len, entry_str_len, to_move; | |
1645 | ssize_t remaining_space; | |
1646 | char *pos; | |
7f4f8001 | 1647 | const char *filename = perf_evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
1648 | |
1649 | if (!thread) | |
1650 | goto out; | |
1651 | ||
1652 | ttrace = thread__priv(thread); | |
1653 | if (!ttrace) | |
1654 | goto out; | |
1655 | ||
7f4f8001 ACM |
1656 | filename_len = strlen(filename); |
1657 | ||
1658 | if (ttrace->filename.namelen < filename_len) { | |
1659 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
1660 | ||
1661 | if (f == NULL) | |
1662 | goto out; | |
1663 | ||
1664 | ttrace->filename.namelen = filename_len; | |
1665 | ttrace->filename.name = f; | |
1666 | } | |
1667 | ||
1668 | strcpy(ttrace->filename.name, filename); | |
1669 | ttrace->filename.pending_open = true; | |
1670 | ||
f994592d ACM |
1671 | if (!ttrace->filename.ptr) |
1672 | goto out; | |
1673 | ||
1674 | entry_str_len = strlen(ttrace->entry_str); | |
1675 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
1676 | if (remaining_space <= 0) | |
1677 | goto out; | |
1678 | ||
f994592d ACM |
1679 | if (filename_len > (size_t)remaining_space) { |
1680 | filename += filename_len - remaining_space; | |
1681 | filename_len = remaining_space; | |
1682 | } | |
1683 | ||
1684 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
1685 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
1686 | memmove(pos + filename_len, pos, to_move); | |
1687 | memcpy(pos, filename, filename_len); | |
1688 | ||
1689 | ttrace->filename.ptr = 0; | |
1690 | ttrace->filename.entry_str_pos = 0; | |
1691 | out: | |
c522739d ACM |
1692 | return 0; |
1693 | } | |
1694 | ||
1302d88e | 1695 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1696 | union perf_event *event __maybe_unused, |
1302d88e ACM |
1697 | struct perf_sample *sample) |
1698 | { | |
1699 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
1700 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
8fb598e5 | 1701 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
1702 | sample->pid, |
1703 | sample->tid); | |
c24ff998 | 1704 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
1705 | |
1706 | if (ttrace == NULL) | |
1707 | goto out_dump; | |
1708 | ||
1709 | ttrace->runtime_ms += runtime_ms; | |
1710 | trace->runtime_ms += runtime_ms; | |
b91fc39f | 1711 | thread__put(thread); |
1302d88e ACM |
1712 | return 0; |
1713 | ||
1714 | out_dump: | |
c24ff998 | 1715 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
1716 | evsel->name, |
1717 | perf_evsel__strval(evsel, sample, "comm"), | |
1718 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
1719 | runtime, | |
1720 | perf_evsel__intval(evsel, sample, "vruntime")); | |
b91fc39f | 1721 | thread__put(thread); |
1302d88e ACM |
1722 | return 0; |
1723 | } | |
1724 | ||
1d6c9407 WN |
1725 | static void bpf_output__printer(enum binary_printer_ops op, |
1726 | unsigned int val, void *extra) | |
1727 | { | |
1728 | FILE *output = extra; | |
1729 | unsigned char ch = (unsigned char)val; | |
1730 | ||
1731 | switch (op) { | |
1732 | case BINARY_PRINT_CHAR_DATA: | |
1733 | fprintf(output, "%c", isprint(ch) ? ch : '.'); | |
1734 | break; | |
1735 | case BINARY_PRINT_DATA_BEGIN: | |
1736 | case BINARY_PRINT_LINE_BEGIN: | |
1737 | case BINARY_PRINT_ADDR: | |
1738 | case BINARY_PRINT_NUM_DATA: | |
1739 | case BINARY_PRINT_NUM_PAD: | |
1740 | case BINARY_PRINT_SEP: | |
1741 | case BINARY_PRINT_CHAR_PAD: | |
1742 | case BINARY_PRINT_LINE_END: | |
1743 | case BINARY_PRINT_DATA_END: | |
1744 | default: | |
1745 | break; | |
1746 | } | |
1747 | } | |
1748 | ||
1749 | static void bpf_output__fprintf(struct trace *trace, | |
1750 | struct perf_sample *sample) | |
1751 | { | |
1752 | print_binary(sample->raw_data, sample->raw_size, 8, | |
1753 | bpf_output__printer, trace->output); | |
1754 | } | |
1755 | ||
14a052df ACM |
1756 | static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel, |
1757 | union perf_event *event __maybe_unused, | |
1758 | struct perf_sample *sample) | |
1759 | { | |
7ad35615 ACM |
1760 | int callchain_ret = 0; |
1761 | ||
1762 | if (sample->callchain) { | |
1763 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1764 | if (callchain_ret == 0) { | |
1765 | if (callchain_cursor.nr < trace->min_stack) | |
1766 | goto out; | |
1767 | callchain_ret = 1; | |
1768 | } | |
1769 | } | |
1770 | ||
14a052df ACM |
1771 | trace__printf_interrupted_entry(trace, sample); |
1772 | trace__fprintf_tstamp(trace, sample->time, trace->output); | |
0808921a ACM |
1773 | |
1774 | if (trace->trace_syscalls) | |
1775 | fprintf(trace->output, "( ): "); | |
1776 | ||
1777 | fprintf(trace->output, "%s:", evsel->name); | |
14a052df | 1778 | |
1d6c9407 WN |
1779 | if (perf_evsel__is_bpf_output(evsel)) { |
1780 | bpf_output__fprintf(trace, sample); | |
1781 | } else if (evsel->tp_format) { | |
14a052df ACM |
1782 | event_format__fprintf(evsel->tp_format, sample->cpu, |
1783 | sample->raw_data, sample->raw_size, | |
1784 | trace->output); | |
1785 | } | |
1786 | ||
1787 | fprintf(trace->output, ")\n"); | |
202ff968 | 1788 | |
7ad35615 ACM |
1789 | if (callchain_ret > 0) |
1790 | trace__fprintf_callchain(trace, sample); | |
1791 | else if (callchain_ret < 0) | |
1792 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
1793 | out: | |
14a052df ACM |
1794 | return 0; |
1795 | } | |
1796 | ||
598d02c5 SF |
1797 | static void print_location(FILE *f, struct perf_sample *sample, |
1798 | struct addr_location *al, | |
1799 | bool print_dso, bool print_sym) | |
1800 | { | |
1801 | ||
1802 | if ((verbose || print_dso) && al->map) | |
1803 | fprintf(f, "%s@", al->map->dso->long_name); | |
1804 | ||
1805 | if ((verbose || print_sym) && al->sym) | |
4414a3c5 | 1806 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
1807 | al->addr - al->sym->start); |
1808 | else if (al->map) | |
4414a3c5 | 1809 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 1810 | else |
4414a3c5 | 1811 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
1812 | } |
1813 | ||
1814 | static int trace__pgfault(struct trace *trace, | |
1815 | struct perf_evsel *evsel, | |
473398a2 | 1816 | union perf_event *event __maybe_unused, |
598d02c5 SF |
1817 | struct perf_sample *sample) |
1818 | { | |
1819 | struct thread *thread; | |
598d02c5 SF |
1820 | struct addr_location al; |
1821 | char map_type = 'd'; | |
a2ea67d7 | 1822 | struct thread_trace *ttrace; |
b91fc39f | 1823 | int err = -1; |
1df54290 | 1824 | int callchain_ret = 0; |
598d02c5 SF |
1825 | |
1826 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1df54290 ACM |
1827 | |
1828 | if (sample->callchain) { | |
1829 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1830 | if (callchain_ret == 0) { | |
1831 | if (callchain_cursor.nr < trace->min_stack) | |
1832 | goto out_put; | |
1833 | callchain_ret = 1; | |
1834 | } | |
1835 | } | |
1836 | ||
a2ea67d7 SF |
1837 | ttrace = thread__trace(thread, trace->output); |
1838 | if (ttrace == NULL) | |
b91fc39f | 1839 | goto out_put; |
a2ea67d7 SF |
1840 | |
1841 | if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) | |
1842 | ttrace->pfmaj++; | |
1843 | else | |
1844 | ttrace->pfmin++; | |
1845 | ||
1846 | if (trace->summary_only) | |
b91fc39f | 1847 | goto out; |
598d02c5 | 1848 | |
473398a2 | 1849 | thread__find_addr_location(thread, sample->cpumode, MAP__FUNCTION, |
598d02c5 SF |
1850 | sample->ip, &al); |
1851 | ||
1852 | trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output); | |
1853 | ||
1854 | fprintf(trace->output, "%sfault [", | |
1855 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? | |
1856 | "maj" : "min"); | |
1857 | ||
1858 | print_location(trace->output, sample, &al, false, true); | |
1859 | ||
1860 | fprintf(trace->output, "] => "); | |
1861 | ||
473398a2 | 1862 | thread__find_addr_location(thread, sample->cpumode, MAP__VARIABLE, |
598d02c5 SF |
1863 | sample->addr, &al); |
1864 | ||
1865 | if (!al.map) { | |
473398a2 | 1866 | thread__find_addr_location(thread, sample->cpumode, |
598d02c5 SF |
1867 | MAP__FUNCTION, sample->addr, &al); |
1868 | ||
1869 | if (al.map) | |
1870 | map_type = 'x'; | |
1871 | else | |
1872 | map_type = '?'; | |
1873 | } | |
1874 | ||
1875 | print_location(trace->output, sample, &al, true, false); | |
1876 | ||
1877 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 1878 | |
1df54290 ACM |
1879 | if (callchain_ret > 0) |
1880 | trace__fprintf_callchain(trace, sample); | |
1881 | else if (callchain_ret < 0) | |
1882 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
b91fc39f ACM |
1883 | out: |
1884 | err = 0; | |
1885 | out_put: | |
1886 | thread__put(thread); | |
1887 | return err; | |
598d02c5 SF |
1888 | } |
1889 | ||
bdc89661 DA |
1890 | static bool skip_sample(struct trace *trace, struct perf_sample *sample) |
1891 | { | |
1892 | if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) || | |
1893 | (trace->tid_list && intlist__find(trace->tid_list, sample->tid))) | |
1894 | return false; | |
1895 | ||
1896 | if (trace->pid_list || trace->tid_list) | |
1897 | return true; | |
1898 | ||
1899 | return false; | |
1900 | } | |
1901 | ||
e6001980 | 1902 | static void trace__set_base_time(struct trace *trace, |
8a07a809 | 1903 | struct perf_evsel *evsel, |
e6001980 ACM |
1904 | struct perf_sample *sample) |
1905 | { | |
8a07a809 ACM |
1906 | /* |
1907 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
1908 | * and don't use sample->time unconditionally, we may end up having | |
1909 | * some other event in the future without PERF_SAMPLE_TIME for good | |
1910 | * reason, i.e. we may not be interested in its timestamps, just in | |
1911 | * it taking place, picking some piece of information when it | |
1912 | * appears in our event stream (vfs_getname comes to mind). | |
1913 | */ | |
1914 | if (trace->base_time == 0 && !trace->full_time && | |
1915 | (evsel->attr.sample_type & PERF_SAMPLE_TIME)) | |
e6001980 ACM |
1916 | trace->base_time = sample->time; |
1917 | } | |
1918 | ||
6810fc91 | 1919 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 1920 | union perf_event *event, |
6810fc91 DA |
1921 | struct perf_sample *sample, |
1922 | struct perf_evsel *evsel, | |
1923 | struct machine *machine __maybe_unused) | |
1924 | { | |
1925 | struct trace *trace = container_of(tool, struct trace, tool); | |
1926 | int err = 0; | |
1927 | ||
744a9719 | 1928 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 1929 | |
bdc89661 DA |
1930 | if (skip_sample(trace, sample)) |
1931 | return 0; | |
1932 | ||
e6001980 | 1933 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 1934 | |
3160565f DA |
1935 | if (handler) { |
1936 | ++trace->nr_events; | |
0c82adcf | 1937 | handler(trace, evsel, event, sample); |
3160565f | 1938 | } |
6810fc91 DA |
1939 | |
1940 | return err; | |
1941 | } | |
1942 | ||
bdc89661 DA |
1943 | static int parse_target_str(struct trace *trace) |
1944 | { | |
1945 | if (trace->opts.target.pid) { | |
1946 | trace->pid_list = intlist__new(trace->opts.target.pid); | |
1947 | if (trace->pid_list == NULL) { | |
1948 | pr_err("Error parsing process id string\n"); | |
1949 | return -EINVAL; | |
1950 | } | |
1951 | } | |
1952 | ||
1953 | if (trace->opts.target.tid) { | |
1954 | trace->tid_list = intlist__new(trace->opts.target.tid); | |
1955 | if (trace->tid_list == NULL) { | |
1956 | pr_err("Error parsing thread id string\n"); | |
1957 | return -EINVAL; | |
1958 | } | |
1959 | } | |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
1e28fe0a | 1964 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
1965 | { |
1966 | unsigned int rec_argc, i, j; | |
1967 | const char **rec_argv; | |
1968 | const char * const record_args[] = { | |
1969 | "record", | |
1970 | "-R", | |
1971 | "-m", "1024", | |
1972 | "-c", "1", | |
5e2485b1 DA |
1973 | }; |
1974 | ||
1e28fe0a SF |
1975 | const char * const sc_args[] = { "-e", }; |
1976 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
1977 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
1978 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
1979 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
1980 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
1981 | ||
9aca7f17 | 1982 | /* +1 is for the event string below */ |
1e28fe0a SF |
1983 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + |
1984 | majpf_args_nr + minpf_args_nr + argc; | |
5e2485b1 DA |
1985 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1986 | ||
1987 | if (rec_argv == NULL) | |
1988 | return -ENOMEM; | |
1989 | ||
1e28fe0a | 1990 | j = 0; |
5e2485b1 | 1991 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
1992 | rec_argv[j++] = record_args[i]; |
1993 | ||
e281a960 SF |
1994 | if (trace->trace_syscalls) { |
1995 | for (i = 0; i < sc_args_nr; i++) | |
1996 | rec_argv[j++] = sc_args[i]; | |
1997 | ||
1998 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
1999 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
2000 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
2001 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
2002 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
2003 | else { | |
2004 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
2005 | return -1; | |
2006 | } | |
9aca7f17 | 2007 | } |
9aca7f17 | 2008 | |
1e28fe0a SF |
2009 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
2010 | for (i = 0; i < majpf_args_nr; i++) | |
2011 | rec_argv[j++] = majpf_args[i]; | |
2012 | ||
2013 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
2014 | for (i = 0; i < minpf_args_nr; i++) | |
2015 | rec_argv[j++] = minpf_args[i]; | |
2016 | ||
2017 | for (i = 0; i < (unsigned int)argc; i++) | |
2018 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 2019 | |
1e28fe0a | 2020 | return cmd_record(j, rec_argv, NULL); |
5e2485b1 DA |
2021 | } |
2022 | ||
bf2575c1 DA |
2023 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
2024 | ||
08c98776 | 2025 | static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) |
c522739d | 2026 | { |
ef503831 | 2027 | struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); |
8dd2a131 JO |
2028 | |
2029 | if (IS_ERR(evsel)) | |
08c98776 | 2030 | return false; |
c522739d ACM |
2031 | |
2032 | if (perf_evsel__field(evsel, "pathname") == NULL) { | |
2033 | perf_evsel__delete(evsel); | |
08c98776 | 2034 | return false; |
c522739d ACM |
2035 | } |
2036 | ||
744a9719 | 2037 | evsel->handler = trace__vfs_getname; |
c522739d | 2038 | perf_evlist__add(evlist, evsel); |
08c98776 | 2039 | return true; |
c522739d ACM |
2040 | } |
2041 | ||
0ae537cb | 2042 | static struct perf_evsel *perf_evsel__new_pgfault(u64 config) |
598d02c5 SF |
2043 | { |
2044 | struct perf_evsel *evsel; | |
2045 | struct perf_event_attr attr = { | |
2046 | .type = PERF_TYPE_SOFTWARE, | |
2047 | .mmap_data = 1, | |
598d02c5 SF |
2048 | }; |
2049 | ||
2050 | attr.config = config; | |
0524798c | 2051 | attr.sample_period = 1; |
598d02c5 SF |
2052 | |
2053 | event_attr_init(&attr); | |
2054 | ||
2055 | evsel = perf_evsel__new(&attr); | |
0ae537cb ACM |
2056 | if (evsel) |
2057 | evsel->handler = trace__pgfault; | |
598d02c5 | 2058 | |
0ae537cb | 2059 | return evsel; |
598d02c5 SF |
2060 | } |
2061 | ||
ddbb1b13 ACM |
2062 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
2063 | { | |
2064 | const u32 type = event->header.type; | |
2065 | struct perf_evsel *evsel; | |
2066 | ||
ddbb1b13 ACM |
2067 | if (type != PERF_RECORD_SAMPLE) { |
2068 | trace__process_event(trace, trace->host, event, sample); | |
2069 | return; | |
2070 | } | |
2071 | ||
2072 | evsel = perf_evlist__id2evsel(trace->evlist, sample->id); | |
2073 | if (evsel == NULL) { | |
2074 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
2075 | return; | |
2076 | } | |
2077 | ||
e6001980 ACM |
2078 | trace__set_base_time(trace, evsel, sample); |
2079 | ||
ddbb1b13 ACM |
2080 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT && |
2081 | sample->raw_data == NULL) { | |
2082 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
2083 | perf_evsel__name(evsel), sample->tid, | |
2084 | sample->cpu, sample->raw_size); | |
2085 | } else { | |
2086 | tracepoint_handler handler = evsel->handler; | |
2087 | handler(trace, evsel, event, sample); | |
2088 | } | |
2089 | } | |
2090 | ||
c27366f0 ACM |
2091 | static int trace__add_syscall_newtp(struct trace *trace) |
2092 | { | |
2093 | int ret = -1; | |
2094 | struct perf_evlist *evlist = trace->evlist; | |
2095 | struct perf_evsel *sys_enter, *sys_exit; | |
2096 | ||
2097 | sys_enter = perf_evsel__syscall_newtp("sys_enter", trace__sys_enter); | |
2098 | if (sys_enter == NULL) | |
2099 | goto out; | |
2100 | ||
2101 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
2102 | goto out_delete_sys_enter; | |
2103 | ||
2104 | sys_exit = perf_evsel__syscall_newtp("sys_exit", trace__sys_exit); | |
2105 | if (sys_exit == NULL) | |
2106 | goto out_delete_sys_enter; | |
2107 | ||
2108 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
2109 | goto out_delete_sys_exit; | |
2110 | ||
2111 | perf_evlist__add(evlist, sys_enter); | |
2112 | perf_evlist__add(evlist, sys_exit); | |
2113 | ||
2ddd5c04 | 2114 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
2115 | /* |
2116 | * We're interested only in the user space callchain | |
2117 | * leading to the syscall, allow overriding that for | |
2118 | * debugging reasons using --kernel_syscall_callchains | |
2119 | */ | |
2120 | sys_exit->attr.exclude_callchain_kernel = 1; | |
2121 | } | |
2122 | ||
8b3ce757 ACM |
2123 | trace->syscalls.events.sys_enter = sys_enter; |
2124 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
2125 | |
2126 | ret = 0; | |
2127 | out: | |
2128 | return ret; | |
2129 | ||
2130 | out_delete_sys_exit: | |
2131 | perf_evsel__delete_priv(sys_exit); | |
2132 | out_delete_sys_enter: | |
2133 | perf_evsel__delete_priv(sys_enter); | |
2134 | goto out; | |
2135 | } | |
2136 | ||
19867b61 ACM |
2137 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
2138 | { | |
2139 | int err = -1; | |
2140 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, | |
2141 | trace->ev_qualifier_ids.nr, | |
2142 | trace->ev_qualifier_ids.entries); | |
2143 | ||
2144 | if (filter == NULL) | |
2145 | goto out_enomem; | |
2146 | ||
2147 | if (!perf_evsel__append_filter(trace->syscalls.events.sys_enter, "&&", filter)) | |
2148 | err = perf_evsel__append_filter(trace->syscalls.events.sys_exit, "&&", filter); | |
2149 | ||
2150 | free(filter); | |
2151 | out: | |
2152 | return err; | |
2153 | out_enomem: | |
2154 | errno = ENOMEM; | |
2155 | goto out; | |
2156 | } | |
c27366f0 | 2157 | |
f15eb531 | 2158 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 2159 | { |
14a052df | 2160 | struct perf_evlist *evlist = trace->evlist; |
0ae537cb | 2161 | struct perf_evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
2162 | int err = -1, i; |
2163 | unsigned long before; | |
f15eb531 | 2164 | const bool forks = argc > 0; |
46fb3c21 | 2165 | bool draining = false; |
514f1c67 | 2166 | |
75b757ca ACM |
2167 | trace->live = true; |
2168 | ||
c27366f0 | 2169 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) |
801c67b0 | 2170 | goto out_error_raw_syscalls; |
514f1c67 | 2171 | |
e281a960 | 2172 | if (trace->trace_syscalls) |
08c98776 | 2173 | trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); |
c522739d | 2174 | |
0ae537cb ACM |
2175 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
2176 | pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); | |
2177 | if (pgfault_maj == NULL) | |
2178 | goto out_error_mem; | |
2179 | perf_evlist__add(evlist, pgfault_maj); | |
e2726d99 | 2180 | } |
598d02c5 | 2181 | |
0ae537cb ACM |
2182 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
2183 | pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); | |
2184 | if (pgfault_min == NULL) | |
2185 | goto out_error_mem; | |
2186 | perf_evlist__add(evlist, pgfault_min); | |
2187 | } | |
598d02c5 | 2188 | |
1302d88e | 2189 | if (trace->sched && |
2cc990ba ACM |
2190 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", |
2191 | trace__sched_stat_runtime)) | |
2192 | goto out_error_sched_stat_runtime; | |
1302d88e | 2193 | |
514f1c67 ACM |
2194 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
2195 | if (err < 0) { | |
c24ff998 | 2196 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
2197 | goto out_delete_evlist; |
2198 | } | |
2199 | ||
752fde44 ACM |
2200 | err = trace__symbols_init(trace, evlist); |
2201 | if (err < 0) { | |
c24ff998 | 2202 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 2203 | goto out_delete_evlist; |
752fde44 ACM |
2204 | } |
2205 | ||
fde54b78 ACM |
2206 | perf_evlist__config(evlist, &trace->opts, NULL); |
2207 | ||
0c3a6ef4 ACM |
2208 | if (callchain_param.enabled) { |
2209 | bool use_identifier = false; | |
2210 | ||
2211 | if (trace->syscalls.events.sys_exit) { | |
2212 | perf_evsel__config_callchain(trace->syscalls.events.sys_exit, | |
2213 | &trace->opts, &callchain_param); | |
2214 | use_identifier = true; | |
2215 | } | |
2216 | ||
2217 | if (pgfault_maj) { | |
2218 | perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); | |
2219 | use_identifier = true; | |
2220 | } | |
2221 | ||
2222 | if (pgfault_min) { | |
2223 | perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); | |
2224 | use_identifier = true; | |
2225 | } | |
2226 | ||
2227 | if (use_identifier) { | |
2228 | /* | |
2229 | * Now we have evsels with different sample_ids, use | |
2230 | * PERF_SAMPLE_IDENTIFIER to map from sample to evsel | |
2231 | * from a fixed position in each ring buffer record. | |
2232 | * | |
2233 | * As of this the changeset introducing this comment, this | |
2234 | * isn't strictly needed, as the fields that can come before | |
2235 | * PERF_SAMPLE_ID are all used, but we'll probably disable | |
2236 | * some of those for things like copying the payload of | |
2237 | * pointer syscall arguments, and for vfs_getname we don't | |
2238 | * need PERF_SAMPLE_ADDR and PERF_SAMPLE_IP, so do this | |
2239 | * here as a warning we need to use PERF_SAMPLE_IDENTIFIER. | |
2240 | */ | |
2241 | perf_evlist__set_sample_bit(evlist, IDENTIFIER); | |
2242 | perf_evlist__reset_sample_bit(evlist, ID); | |
2243 | } | |
fde54b78 | 2244 | } |
514f1c67 | 2245 | |
f15eb531 NK |
2246 | signal(SIGCHLD, sig_handler); |
2247 | signal(SIGINT, sig_handler); | |
2248 | ||
2249 | if (forks) { | |
6ef73ec4 | 2250 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
735f7e0b | 2251 | argv, false, NULL); |
f15eb531 | 2252 | if (err < 0) { |
c24ff998 | 2253 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 2254 | goto out_delete_evlist; |
f15eb531 NK |
2255 | } |
2256 | } | |
2257 | ||
514f1c67 | 2258 | err = perf_evlist__open(evlist); |
a8f23d8f ACM |
2259 | if (err < 0) |
2260 | goto out_error_open; | |
514f1c67 | 2261 | |
ba504235 WN |
2262 | err = bpf__apply_obj_config(); |
2263 | if (err) { | |
2264 | char errbuf[BUFSIZ]; | |
2265 | ||
2266 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
2267 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
2268 | errbuf); | |
2269 | goto out_error_open; | |
2270 | } | |
2271 | ||
241b057c ACM |
2272 | /* |
2273 | * Better not use !target__has_task() here because we need to cover the | |
2274 | * case where no threads were specified in the command line, but a | |
2275 | * workload was, and in that case we will fill in the thread_map when | |
2276 | * we fork the workload in perf_evlist__prepare_workload. | |
2277 | */ | |
f078c385 ACM |
2278 | if (trace->filter_pids.nr > 0) |
2279 | err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries); | |
e13798c7 | 2280 | else if (thread_map__pid(evlist->threads, 0) == -1) |
f078c385 ACM |
2281 | err = perf_evlist__set_filter_pid(evlist, getpid()); |
2282 | ||
94ad89bc ACM |
2283 | if (err < 0) |
2284 | goto out_error_mem; | |
2285 | ||
19867b61 ACM |
2286 | if (trace->ev_qualifier_ids.nr > 0) { |
2287 | err = trace__set_ev_qualifier_filter(trace); | |
2288 | if (err < 0) | |
2289 | goto out_errno; | |
19867b61 | 2290 | |
2e5e5f87 ACM |
2291 | pr_debug("event qualifier tracepoint filter: %s\n", |
2292 | trace->syscalls.events.sys_exit->filter); | |
2293 | } | |
19867b61 | 2294 | |
94ad89bc ACM |
2295 | err = perf_evlist__apply_filters(evlist, &evsel); |
2296 | if (err < 0) | |
2297 | goto out_error_apply_filters; | |
241b057c | 2298 | |
f885037e | 2299 | err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false); |
e09b18d4 ACM |
2300 | if (err < 0) |
2301 | goto out_error_mmap; | |
514f1c67 | 2302 | |
cb24d01d ACM |
2303 | if (!target__none(&trace->opts.target)) |
2304 | perf_evlist__enable(evlist); | |
2305 | ||
f15eb531 NK |
2306 | if (forks) |
2307 | perf_evlist__start_workload(evlist); | |
2308 | ||
e13798c7 | 2309 | trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 || |
42052bea ACM |
2310 | evlist->threads->nr > 1 || |
2311 | perf_evlist__first(evlist)->attr.inherit; | |
514f1c67 | 2312 | again: |
efd5745e | 2313 | before = trace->nr_events; |
514f1c67 ACM |
2314 | |
2315 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
2316 | union perf_event *event; | |
2317 | ||
2318 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
514f1c67 | 2319 | struct perf_sample sample; |
514f1c67 | 2320 | |
efd5745e | 2321 | ++trace->nr_events; |
514f1c67 | 2322 | |
514f1c67 ACM |
2323 | err = perf_evlist__parse_sample(evlist, event, &sample); |
2324 | if (err) { | |
c24ff998 | 2325 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); |
8e50d384 | 2326 | goto next_event; |
514f1c67 ACM |
2327 | } |
2328 | ||
ddbb1b13 | 2329 | trace__handle_event(trace, event, &sample); |
8e50d384 ZZ |
2330 | next_event: |
2331 | perf_evlist__mmap_consume(evlist, i); | |
20c5f10e | 2332 | |
ba209f85 ACM |
2333 | if (interrupted) |
2334 | goto out_disable; | |
02ac5421 ACM |
2335 | |
2336 | if (done && !draining) { | |
2337 | perf_evlist__disable(evlist); | |
2338 | draining = true; | |
2339 | } | |
514f1c67 ACM |
2340 | } |
2341 | } | |
2342 | ||
efd5745e | 2343 | if (trace->nr_events == before) { |
ba209f85 | 2344 | int timeout = done ? 100 : -1; |
f15eb531 | 2345 | |
46fb3c21 ACM |
2346 | if (!draining && perf_evlist__poll(evlist, timeout) > 0) { |
2347 | if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0) | |
2348 | draining = true; | |
2349 | ||
ba209f85 | 2350 | goto again; |
46fb3c21 | 2351 | } |
ba209f85 ACM |
2352 | } else { |
2353 | goto again; | |
f15eb531 NK |
2354 | } |
2355 | ||
ba209f85 | 2356 | out_disable: |
f3b623b8 ACM |
2357 | thread__zput(trace->current); |
2358 | ||
ba209f85 | 2359 | perf_evlist__disable(evlist); |
514f1c67 | 2360 | |
c522739d ACM |
2361 | if (!err) { |
2362 | if (trace->summary) | |
2363 | trace__fprintf_thread_summary(trace, trace->output); | |
2364 | ||
2365 | if (trace->show_tool_stats) { | |
2366 | fprintf(trace->output, "Stats:\n " | |
2367 | " vfs_getname : %" PRIu64 "\n" | |
2368 | " proc_getname: %" PRIu64 "\n", | |
2369 | trace->stats.vfs_getname, | |
2370 | trace->stats.proc_getname); | |
2371 | } | |
2372 | } | |
bf2575c1 | 2373 | |
514f1c67 ACM |
2374 | out_delete_evlist: |
2375 | perf_evlist__delete(evlist); | |
14a052df | 2376 | trace->evlist = NULL; |
75b757ca | 2377 | trace->live = false; |
514f1c67 | 2378 | return err; |
6ef068cb ACM |
2379 | { |
2380 | char errbuf[BUFSIZ]; | |
a8f23d8f | 2381 | |
2cc990ba | 2382 | out_error_sched_stat_runtime: |
988bdb31 | 2383 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
2384 | goto out_error; |
2385 | ||
801c67b0 | 2386 | out_error_raw_syscalls: |
988bdb31 | 2387 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
2388 | goto out_error; |
2389 | ||
e09b18d4 ACM |
2390 | out_error_mmap: |
2391 | perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); | |
2392 | goto out_error; | |
2393 | ||
a8f23d8f ACM |
2394 | out_error_open: |
2395 | perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); | |
2396 | ||
2397 | out_error: | |
6ef068cb | 2398 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 2399 | goto out_delete_evlist; |
94ad89bc ACM |
2400 | |
2401 | out_error_apply_filters: | |
2402 | fprintf(trace->output, | |
2403 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
2404 | evsel->filter, perf_evsel__name(evsel), errno, | |
2405 | strerror_r(errno, errbuf, sizeof(errbuf))); | |
2406 | goto out_delete_evlist; | |
514f1c67 | 2407 | } |
5ed08dae ACM |
2408 | out_error_mem: |
2409 | fprintf(trace->output, "Not enough memory to run!\n"); | |
2410 | goto out_delete_evlist; | |
19867b61 ACM |
2411 | |
2412 | out_errno: | |
2413 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
2414 | goto out_delete_evlist; | |
a8f23d8f | 2415 | } |
514f1c67 | 2416 | |
6810fc91 DA |
2417 | static int trace__replay(struct trace *trace) |
2418 | { | |
2419 | const struct perf_evsel_str_handler handlers[] = { | |
c522739d | 2420 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 2421 | }; |
f5fc1412 JO |
2422 | struct perf_data_file file = { |
2423 | .path = input_name, | |
2424 | .mode = PERF_DATA_MODE_READ, | |
e366a6d8 | 2425 | .force = trace->force, |
f5fc1412 | 2426 | }; |
6810fc91 | 2427 | struct perf_session *session; |
003824e8 | 2428 | struct perf_evsel *evsel; |
6810fc91 DA |
2429 | int err = -1; |
2430 | ||
2431 | trace->tool.sample = trace__process_sample; | |
2432 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 2433 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
2434 | trace->tool.comm = perf_event__process_comm; |
2435 | trace->tool.exit = perf_event__process_exit; | |
2436 | trace->tool.fork = perf_event__process_fork; | |
2437 | trace->tool.attr = perf_event__process_attr; | |
2438 | trace->tool.tracing_data = perf_event__process_tracing_data; | |
2439 | trace->tool.build_id = perf_event__process_build_id; | |
2440 | ||
0a8cb85c | 2441 | trace->tool.ordered_events = true; |
6810fc91 DA |
2442 | trace->tool.ordering_requires_timestamps = true; |
2443 | ||
2444 | /* add tid to output */ | |
2445 | trace->multiple_threads = true; | |
2446 | ||
f5fc1412 | 2447 | session = perf_session__new(&file, false, &trace->tool); |
6810fc91 | 2448 | if (session == NULL) |
52e02834 | 2449 | return -1; |
6810fc91 | 2450 | |
0a7e6d1b | 2451 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
2452 | goto out; |
2453 | ||
8fb598e5 DA |
2454 | trace->host = &session->machines.host; |
2455 | ||
6810fc91 DA |
2456 | err = perf_session__set_tracepoints_handlers(session, handlers); |
2457 | if (err) | |
2458 | goto out; | |
2459 | ||
003824e8 NK |
2460 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, |
2461 | "raw_syscalls:sys_enter"); | |
9aca7f17 DA |
2462 | /* older kernels have syscalls tp versus raw_syscalls */ |
2463 | if (evsel == NULL) | |
2464 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2465 | "syscalls:sys_enter"); | |
003824e8 | 2466 | |
e281a960 SF |
2467 | if (evsel && |
2468 | (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 || | |
2469 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { | |
003824e8 NK |
2470 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
2471 | goto out; | |
2472 | } | |
2473 | ||
2474 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2475 | "raw_syscalls:sys_exit"); | |
9aca7f17 DA |
2476 | if (evsel == NULL) |
2477 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2478 | "syscalls:sys_exit"); | |
e281a960 SF |
2479 | if (evsel && |
2480 | (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 || | |
2481 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { | |
003824e8 | 2482 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
2483 | goto out; |
2484 | } | |
2485 | ||
1e28fe0a SF |
2486 | evlist__for_each(session->evlist, evsel) { |
2487 | if (evsel->attr.type == PERF_TYPE_SOFTWARE && | |
2488 | (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
2489 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
2490 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
2491 | evsel->handler = trace__pgfault; | |
2492 | } | |
2493 | ||
bdc89661 DA |
2494 | err = parse_target_str(trace); |
2495 | if (err != 0) | |
2496 | goto out; | |
2497 | ||
6810fc91 DA |
2498 | setup_pager(); |
2499 | ||
b7b61cbe | 2500 | err = perf_session__process_events(session); |
6810fc91 DA |
2501 | if (err) |
2502 | pr_err("Failed to process events, error %d", err); | |
2503 | ||
bf2575c1 DA |
2504 | else if (trace->summary) |
2505 | trace__fprintf_thread_summary(trace, trace->output); | |
2506 | ||
6810fc91 DA |
2507 | out: |
2508 | perf_session__delete(session); | |
2509 | ||
2510 | return err; | |
2511 | } | |
2512 | ||
1302d88e ACM |
2513 | static size_t trace__fprintf_threads_header(FILE *fp) |
2514 | { | |
2515 | size_t printed; | |
2516 | ||
99ff7150 | 2517 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
2518 | |
2519 | return printed; | |
2520 | } | |
2521 | ||
b535d523 ACM |
2522 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
2523 | struct stats *stats; | |
2524 | double msecs; | |
2525 | int syscall; | |
2526 | ) | |
2527 | { | |
2528 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
2529 | struct stats *stats = source->priv; | |
2530 | ||
2531 | entry->syscall = source->i; | |
2532 | entry->stats = stats; | |
2533 | entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0; | |
2534 | } | |
2535 | ||
bf2575c1 DA |
2536 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
2537 | struct trace *trace, FILE *fp) | |
2538 | { | |
bf2575c1 DA |
2539 | size_t printed = 0; |
2540 | struct syscall *sc; | |
b535d523 ACM |
2541 | struct rb_node *nd; |
2542 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 2543 | |
b535d523 | 2544 | if (syscall_stats == NULL) |
bf2575c1 DA |
2545 | return 0; |
2546 | ||
2547 | printed += fprintf(fp, "\n"); | |
2548 | ||
834fd46d MW |
2549 | printed += fprintf(fp, " syscall calls total min avg max stddev\n"); |
2550 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
2551 | printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n"); | |
99ff7150 | 2552 | |
b535d523 ACM |
2553 | resort_rb__for_each(nd, syscall_stats) { |
2554 | struct stats *stats = syscall_stats_entry->stats; | |
bf2575c1 DA |
2555 | if (stats) { |
2556 | double min = (double)(stats->min) / NSEC_PER_MSEC; | |
2557 | double max = (double)(stats->max) / NSEC_PER_MSEC; | |
2558 | double avg = avg_stats(stats); | |
2559 | double pct; | |
2560 | u64 n = (u64) stats->n; | |
2561 | ||
2562 | pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; | |
2563 | avg /= NSEC_PER_MSEC; | |
2564 | ||
b535d523 | 2565 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 2566 | printed += fprintf(fp, " %-15s", sc->name); |
834fd46d | 2567 | printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f", |
b535d523 | 2568 | n, syscall_stats_entry->msecs, min, avg); |
27a778b5 | 2569 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
bf2575c1 | 2570 | } |
bf2575c1 DA |
2571 | } |
2572 | ||
b535d523 | 2573 | resort_rb__delete(syscall_stats); |
bf2575c1 | 2574 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
2575 | |
2576 | return printed; | |
2577 | } | |
2578 | ||
96c14451 | 2579 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 2580 | { |
96c14451 | 2581 | size_t printed = 0; |
89dceb22 | 2582 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
2583 | double ratio; |
2584 | ||
2585 | if (ttrace == NULL) | |
2586 | return 0; | |
2587 | ||
2588 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
2589 | ||
15e65c69 | 2590 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); |
99ff7150 | 2591 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 2592 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
2593 | if (ttrace->pfmaj) |
2594 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
2595 | if (ttrace->pfmin) | |
2596 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
2597 | if (trace->sched) |
2598 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
2599 | else if (fputc('\n', fp) != EOF) | |
2600 | ++printed; | |
2601 | ||
bf2575c1 | 2602 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 2603 | |
96c14451 ACM |
2604 | return printed; |
2605 | } | |
896cbb56 | 2606 | |
96c14451 ACM |
2607 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
2608 | { | |
2609 | return ttrace ? ttrace->nr_events : 0; | |
2610 | } | |
2611 | ||
2612 | DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)), | |
2613 | struct thread *thread; | |
2614 | ) | |
2615 | { | |
2616 | entry->thread = rb_entry(nd, struct thread, rb_node); | |
896cbb56 DA |
2617 | } |
2618 | ||
1302d88e ACM |
2619 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
2620 | { | |
96c14451 ACM |
2621 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host); |
2622 | size_t printed = trace__fprintf_threads_header(fp); | |
2623 | struct rb_node *nd; | |
1302d88e | 2624 | |
96c14451 ACM |
2625 | if (threads == NULL) { |
2626 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
2627 | return 0; | |
2628 | } | |
2629 | ||
2630 | resort_rb__for_each(nd, threads) | |
2631 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); | |
896cbb56 | 2632 | |
96c14451 ACM |
2633 | resort_rb__delete(threads); |
2634 | ||
2635 | return printed; | |
1302d88e ACM |
2636 | } |
2637 | ||
ae9ed035 ACM |
2638 | static int trace__set_duration(const struct option *opt, const char *str, |
2639 | int unset __maybe_unused) | |
2640 | { | |
2641 | struct trace *trace = opt->value; | |
2642 | ||
2643 | trace->duration_filter = atof(str); | |
2644 | return 0; | |
2645 | } | |
2646 | ||
f078c385 ACM |
2647 | static int trace__set_filter_pids(const struct option *opt, const char *str, |
2648 | int unset __maybe_unused) | |
2649 | { | |
2650 | int ret = -1; | |
2651 | size_t i; | |
2652 | struct trace *trace = opt->value; | |
2653 | /* | |
2654 | * FIXME: introduce a intarray class, plain parse csv and create a | |
2655 | * { int nr, int entries[] } struct... | |
2656 | */ | |
2657 | struct intlist *list = intlist__new(str); | |
2658 | ||
2659 | if (list == NULL) | |
2660 | return -1; | |
2661 | ||
2662 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
2663 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
2664 | ||
2665 | if (trace->filter_pids.entries == NULL) | |
2666 | goto out; | |
2667 | ||
2668 | trace->filter_pids.entries[0] = getpid(); | |
2669 | ||
2670 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
2671 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
2672 | ||
2673 | intlist__delete(list); | |
2674 | ret = 0; | |
2675 | out: | |
2676 | return ret; | |
2677 | } | |
2678 | ||
c24ff998 ACM |
2679 | static int trace__open_output(struct trace *trace, const char *filename) |
2680 | { | |
2681 | struct stat st; | |
2682 | ||
2683 | if (!stat(filename, &st) && st.st_size) { | |
2684 | char oldname[PATH_MAX]; | |
2685 | ||
2686 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
2687 | unlink(oldname); | |
2688 | rename(filename, oldname); | |
2689 | } | |
2690 | ||
2691 | trace->output = fopen(filename, "w"); | |
2692 | ||
2693 | return trace->output == NULL ? -errno : 0; | |
2694 | } | |
2695 | ||
598d02c5 SF |
2696 | static int parse_pagefaults(const struct option *opt, const char *str, |
2697 | int unset __maybe_unused) | |
2698 | { | |
2699 | int *trace_pgfaults = opt->value; | |
2700 | ||
2701 | if (strcmp(str, "all") == 0) | |
2702 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
2703 | else if (strcmp(str, "maj") == 0) | |
2704 | *trace_pgfaults |= TRACE_PFMAJ; | |
2705 | else if (strcmp(str, "min") == 0) | |
2706 | *trace_pgfaults |= TRACE_PFMIN; | |
2707 | else | |
2708 | return -1; | |
2709 | ||
2710 | return 0; | |
2711 | } | |
2712 | ||
14a052df ACM |
2713 | static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) |
2714 | { | |
2715 | struct perf_evsel *evsel; | |
2716 | ||
2717 | evlist__for_each(evlist, evsel) | |
2718 | evsel->handler = handler; | |
2719 | } | |
2720 | ||
514f1c67 ACM |
2721 | int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) |
2722 | { | |
6fdd9cb7 | 2723 | const char *trace_usage[] = { |
f15eb531 NK |
2724 | "perf trace [<options>] [<command>]", |
2725 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
2726 | "perf trace record [<options>] [<command>]", |
2727 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
2728 | NULL |
2729 | }; | |
2730 | struct trace trace = { | |
514f1c67 ACM |
2731 | .syscalls = { |
2732 | . max = -1, | |
2733 | }, | |
2734 | .opts = { | |
2735 | .target = { | |
2736 | .uid = UINT_MAX, | |
2737 | .uses_mmap = true, | |
2738 | }, | |
2739 | .user_freq = UINT_MAX, | |
2740 | .user_interval = ULLONG_MAX, | |
509051ea | 2741 | .no_buffering = true, |
38d5447d | 2742 | .mmap_pages = UINT_MAX, |
9d9cad76 | 2743 | .proc_map_timeout = 500, |
514f1c67 | 2744 | }, |
007d66a0 | 2745 | .output = stderr, |
50c95cbd | 2746 | .show_comm = true, |
e281a960 | 2747 | .trace_syscalls = true, |
44621819 | 2748 | .kernel_syscallchains = false, |
05614993 | 2749 | .max_stack = UINT_MAX, |
514f1c67 | 2750 | }; |
c24ff998 | 2751 | const char *output_name = NULL; |
2ae3a312 | 2752 | const char *ev_qualifier_str = NULL; |
514f1c67 | 2753 | const struct option trace_options[] = { |
14a052df ACM |
2754 | OPT_CALLBACK(0, "event", &trace.evlist, "event", |
2755 | "event selector. use 'perf list' to list available events", | |
2756 | parse_events_option), | |
50c95cbd ACM |
2757 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
2758 | "show the thread COMM next to its id"), | |
c522739d | 2759 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
d303e85a | 2760 | OPT_STRING('e', "expr", &ev_qualifier_str, "expr", "list of syscalls to trace"), |
c24ff998 | 2761 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 2762 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
2763 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
2764 | "trace events on existing process id"), | |
ac9be8ee | 2765 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 2766 | "trace events on existing thread id"), |
fa0e4ffe ACM |
2767 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
2768 | "pids to filter (by the kernel)", trace__set_filter_pids), | |
ac9be8ee | 2769 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 2770 | "system-wide collection from all CPUs"), |
ac9be8ee | 2771 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 2772 | "list of cpus to monitor"), |
6810fc91 | 2773 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 2774 | "child tasks do not inherit counters"), |
994a1f78 JO |
2775 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
2776 | "number of mmap data pages", | |
2777 | perf_evlist__parse_mmap_pages), | |
ac9be8ee | 2778 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 2779 | "user to profile"), |
ae9ed035 ACM |
2780 | OPT_CALLBACK(0, "duration", &trace, "float", |
2781 | "show only events with duration > N.M ms", | |
2782 | trace__set_duration), | |
1302d88e | 2783 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 2784 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
2785 | OPT_BOOLEAN('T', "time", &trace.full_time, |
2786 | "Show full timestamp, not time relative to first start"), | |
fd2eabaf DA |
2787 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
2788 | "Show only syscall summary with statistics"), | |
2789 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
2790 | "Show all syscalls and summary with statistics"), | |
598d02c5 SF |
2791 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
2792 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 2793 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 2794 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
2795 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
2796 | "record_mode[,record_size]", record_callchain_help, | |
2797 | &record_parse_callchain_opt), | |
44621819 ACM |
2798 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
2799 | "Show the kernel callchains on the syscall exit path"), | |
5cf9c84e ACM |
2800 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
2801 | "Set the minimum stack depth when parsing the callchain, " | |
2802 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
2803 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
2804 | "Set the maximum stack depth when parsing the callchain, " | |
2805 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 2806 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
9d9cad76 KL |
2807 | OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout, |
2808 | "per thread proc mmap processing timeout in ms"), | |
514f1c67 ACM |
2809 | OPT_END() |
2810 | }; | |
ccd62a89 | 2811 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 2812 | bool mmap_pages_user_set = true; |
6fdd9cb7 | 2813 | const char * const trace_subcommands[] = { "record", NULL }; |
514f1c67 | 2814 | int err; |
32caf0d1 | 2815 | char bf[BUFSIZ]; |
514f1c67 | 2816 | |
4d08cb80 ACM |
2817 | signal(SIGSEGV, sighandler_dump_stack); |
2818 | signal(SIGFPE, sighandler_dump_stack); | |
2819 | ||
14a052df | 2820 | trace.evlist = perf_evlist__new(); |
fd0db102 | 2821 | trace.sctbl = syscalltbl__new(); |
14a052df | 2822 | |
fd0db102 | 2823 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 2824 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 2825 | err = -ENOMEM; |
14a052df ACM |
2826 | goto out; |
2827 | } | |
2828 | ||
6fdd9cb7 YS |
2829 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
2830 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
fd2eabaf | 2831 | |
d7888573 WN |
2832 | err = bpf__setup_stdout(trace.evlist); |
2833 | if (err) { | |
2834 | bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf)); | |
2835 | pr_err("ERROR: Setup BPF stdout failed: %s\n", bf); | |
2836 | goto out; | |
2837 | } | |
2838 | ||
59247e33 ACM |
2839 | err = -1; |
2840 | ||
598d02c5 SF |
2841 | if (trace.trace_pgfaults) { |
2842 | trace.opts.sample_address = true; | |
2843 | trace.opts.sample_time = true; | |
2844 | } | |
2845 | ||
f3e459d1 ACM |
2846 | if (trace.opts.mmap_pages == UINT_MAX) |
2847 | mmap_pages_user_set = false; | |
2848 | ||
05614993 | 2849 | if (trace.max_stack == UINT_MAX) { |
fe176085 | 2850 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl_perf_event_max_stack; |
05614993 ACM |
2851 | max_stack_user_set = false; |
2852 | } | |
2853 | ||
2854 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
caa36ed7 | 2855 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled && trace.trace_syscalls) |
05614993 ACM |
2856 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
2857 | #endif | |
2858 | ||
2ddd5c04 | 2859 | if (callchain_param.enabled) { |
f3e459d1 ACM |
2860 | if (!mmap_pages_user_set && geteuid() == 0) |
2861 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
2862 | ||
566a0885 | 2863 | symbol_conf.use_callchain = true; |
f3e459d1 | 2864 | } |
566a0885 | 2865 | |
14a052df ACM |
2866 | if (trace.evlist->nr_entries > 0) |
2867 | evlist__set_evsel_handler(trace.evlist, trace__event_handler); | |
2868 | ||
1e28fe0a SF |
2869 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
2870 | return trace__record(&trace, argc-1, &argv[1]); | |
2871 | ||
2872 | /* summary_only implies summary option, but don't overwrite summary if set */ | |
2873 | if (trace.summary_only) | |
2874 | trace.summary = trace.summary_only; | |
2875 | ||
726f3234 ACM |
2876 | if (!trace.trace_syscalls && !trace.trace_pgfaults && |
2877 | trace.evlist->nr_entries == 0 /* Was --events used? */) { | |
e281a960 SF |
2878 | pr_err("Please specify something to trace.\n"); |
2879 | return -1; | |
2880 | } | |
2881 | ||
59247e33 ACM |
2882 | if (!trace.trace_syscalls && ev_qualifier_str) { |
2883 | pr_err("The -e option can't be used with --no-syscalls.\n"); | |
2884 | goto out; | |
2885 | } | |
2886 | ||
c24ff998 ACM |
2887 | if (output_name != NULL) { |
2888 | err = trace__open_output(&trace, output_name); | |
2889 | if (err < 0) { | |
2890 | perror("failed to create output file"); | |
2891 | goto out; | |
2892 | } | |
2893 | } | |
2894 | ||
fd0db102 ACM |
2895 | trace.open_id = syscalltbl__id(trace.sctbl, "open"); |
2896 | ||
2ae3a312 | 2897 | if (ev_qualifier_str != NULL) { |
b059efdf | 2898 | const char *s = ev_qualifier_str; |
005438a8 ACM |
2899 | struct strlist_config slist_config = { |
2900 | .dirname = system_path(STRACE_GROUPS_DIR), | |
2901 | }; | |
b059efdf ACM |
2902 | |
2903 | trace.not_ev_qualifier = *s == '!'; | |
2904 | if (trace.not_ev_qualifier) | |
2905 | ++s; | |
005438a8 | 2906 | trace.ev_qualifier = strlist__new(s, &slist_config); |
2ae3a312 | 2907 | if (trace.ev_qualifier == NULL) { |
c24ff998 ACM |
2908 | fputs("Not enough memory to parse event qualifier", |
2909 | trace.output); | |
2910 | err = -ENOMEM; | |
2911 | goto out_close; | |
2ae3a312 | 2912 | } |
d0cc439b ACM |
2913 | |
2914 | err = trace__validate_ev_qualifier(&trace); | |
2915 | if (err) | |
2916 | goto out_close; | |
2ae3a312 ACM |
2917 | } |
2918 | ||
602ad878 | 2919 | err = target__validate(&trace.opts.target); |
32caf0d1 | 2920 | if (err) { |
602ad878 | 2921 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
2922 | fprintf(trace.output, "%s", bf); |
2923 | goto out_close; | |
32caf0d1 NK |
2924 | } |
2925 | ||
602ad878 | 2926 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 2927 | if (err) { |
602ad878 | 2928 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
2929 | fprintf(trace.output, "%s", bf); |
2930 | goto out_close; | |
514f1c67 ACM |
2931 | } |
2932 | ||
602ad878 | 2933 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
2934 | trace.opts.target.system_wide = true; |
2935 | ||
6810fc91 DA |
2936 | if (input_name) |
2937 | err = trace__replay(&trace); | |
2938 | else | |
2939 | err = trace__run(&trace, argc, argv); | |
1302d88e | 2940 | |
c24ff998 ACM |
2941 | out_close: |
2942 | if (output_name != NULL) | |
2943 | fclose(trace.output); | |
2944 | out: | |
1302d88e | 2945 | return err; |
514f1c67 | 2946 | } |