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Commit | Line | Data |
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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" |
9ea42ba4 | 22 | #include "util/cgroup.h" |
752fde44 | 23 | #include "util/color.h" |
7c304ee0 | 24 | #include "util/debug.h" |
092bd3cd | 25 | #include "util/env.h" |
5ab8c689 | 26 | #include "util/event.h" |
514f1c67 | 27 | #include "util/evlist.h" |
4b6ab94e | 28 | #include <subcmd/exec-cmd.h> |
752fde44 | 29 | #include "util/machine.h" |
9a3993d4 | 30 | #include "util/path.h" |
6810fc91 | 31 | #include "util/session.h" |
752fde44 | 32 | #include "util/thread.h" |
4b6ab94e | 33 | #include <subcmd/parse-options.h> |
2ae3a312 | 34 | #include "util/strlist.h" |
bdc89661 | 35 | #include "util/intlist.h" |
514f1c67 | 36 | #include "util/thread_map.h" |
bf2575c1 | 37 | #include "util/stat.h" |
fd5cead2 | 38 | #include "trace/beauty/beauty.h" |
97978b3e | 39 | #include "trace-event.h" |
9aca7f17 | 40 | #include "util/parse-events.h" |
ba504235 | 41 | #include "util/bpf-loader.h" |
566a0885 | 42 | #include "callchain.h" |
fea01392 | 43 | #include "print_binary.h" |
a067558e | 44 | #include "string2.h" |
fd0db102 | 45 | #include "syscalltbl.h" |
96c14451 | 46 | #include "rb_resort.h" |
514f1c67 | 47 | |
a43783ae | 48 | #include <errno.h> |
fd20e811 | 49 | #include <inttypes.h> |
4208735d | 50 | #include <poll.h> |
9607ad3a | 51 | #include <signal.h> |
514f1c67 | 52 | #include <stdlib.h> |
017037ff | 53 | #include <string.h> |
8dd2a131 | 54 | #include <linux/err.h> |
997bba8c | 55 | #include <linux/filter.h> |
877a7a11 | 56 | #include <linux/kernel.h> |
39878d49 | 57 | #include <linux/random.h> |
c6d4a494 | 58 | #include <linux/stringify.h> |
bd48c63e | 59 | #include <linux/time64.h> |
bafae98e | 60 | #include <fcntl.h> |
514f1c67 | 61 | |
3d689ed6 ACM |
62 | #include "sane_ctype.h" |
63 | ||
c188e7ac ACM |
64 | #ifndef O_CLOEXEC |
65 | # define O_CLOEXEC 02000000 | |
66 | #endif | |
67 | ||
83a51694 ACM |
68 | #ifndef F_LINUX_SPECIFIC_BASE |
69 | # define F_LINUX_SPECIFIC_BASE 1024 | |
70 | #endif | |
71 | ||
d1d438a3 ACM |
72 | struct trace { |
73 | struct perf_tool tool; | |
fd0db102 | 74 | struct syscalltbl *sctbl; |
d1d438a3 ACM |
75 | struct { |
76 | int max; | |
77 | struct syscall *table; | |
78 | struct { | |
79 | struct perf_evsel *sys_enter, | |
d3d1c4bd ACM |
80 | *sys_exit, |
81 | *augmented; | |
d1d438a3 ACM |
82 | } events; |
83 | } syscalls; | |
84 | struct record_opts opts; | |
85 | struct perf_evlist *evlist; | |
86 | struct machine *host; | |
87 | struct thread *current; | |
9ea42ba4 | 88 | struct cgroup *cgroup; |
d1d438a3 ACM |
89 | u64 base_time; |
90 | FILE *output; | |
91 | unsigned long nr_events; | |
5067a8cd ACM |
92 | unsigned long nr_events_printed; |
93 | unsigned long max_events; | |
d1d438a3 ACM |
94 | struct strlist *ev_qualifier; |
95 | struct { | |
96 | size_t nr; | |
97 | int *entries; | |
98 | } ev_qualifier_ids; | |
d1d438a3 ACM |
99 | struct { |
100 | size_t nr; | |
101 | pid_t *entries; | |
102 | } filter_pids; | |
103 | double duration_filter; | |
104 | double runtime_ms; | |
105 | struct { | |
106 | u64 vfs_getname, | |
107 | proc_getname; | |
108 | } stats; | |
c6d4a494 | 109 | unsigned int max_stack; |
5cf9c84e | 110 | unsigned int min_stack; |
d1d438a3 ACM |
111 | bool not_ev_qualifier; |
112 | bool live; | |
113 | bool full_time; | |
114 | bool sched; | |
115 | bool multiple_threads; | |
116 | bool summary; | |
117 | bool summary_only; | |
0a6545bd | 118 | bool failure_only; |
d1d438a3 | 119 | bool show_comm; |
591421e1 | 120 | bool print_sample; |
d1d438a3 ACM |
121 | bool show_tool_stats; |
122 | bool trace_syscalls; | |
44621819 | 123 | bool kernel_syscallchains; |
d1d438a3 ACM |
124 | bool force; |
125 | bool vfs_getname; | |
126 | int trace_pgfaults; | |
127 | }; | |
a1c2552d | 128 | |
77170988 ACM |
129 | struct tp_field { |
130 | int offset; | |
131 | union { | |
132 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
133 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
134 | }; | |
135 | }; | |
136 | ||
137 | #define TP_UINT_FIELD(bits) \ | |
138 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
139 | { \ | |
55d43bca DA |
140 | u##bits value; \ |
141 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
142 | return value; \ | |
77170988 ACM |
143 | } |
144 | ||
145 | TP_UINT_FIELD(8); | |
146 | TP_UINT_FIELD(16); | |
147 | TP_UINT_FIELD(32); | |
148 | TP_UINT_FIELD(64); | |
149 | ||
150 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
151 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
152 | { \ | |
55d43bca DA |
153 | u##bits value; \ |
154 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
155 | return bswap_##bits(value);\ |
156 | } | |
157 | ||
158 | TP_UINT_FIELD__SWAPPED(16); | |
159 | TP_UINT_FIELD__SWAPPED(32); | |
160 | TP_UINT_FIELD__SWAPPED(64); | |
161 | ||
aa823f58 | 162 | static int __tp_field__init_uint(struct tp_field *field, int size, int offset, bool needs_swap) |
77170988 | 163 | { |
aa823f58 | 164 | field->offset = offset; |
77170988 | 165 | |
aa823f58 | 166 | switch (size) { |
77170988 ACM |
167 | case 1: |
168 | field->integer = tp_field__u8; | |
169 | break; | |
170 | case 2: | |
171 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
172 | break; | |
173 | case 4: | |
174 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
175 | break; | |
176 | case 8: | |
177 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
178 | break; | |
179 | default: | |
180 | return -1; | |
181 | } | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
2c92f982 | 186 | static int tp_field__init_uint(struct tp_field *field, struct tep_format_field *format_field, bool needs_swap) |
aa823f58 ACM |
187 | { |
188 | return __tp_field__init_uint(field, format_field->size, format_field->offset, needs_swap); | |
189 | } | |
190 | ||
77170988 ACM |
191 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) |
192 | { | |
193 | return sample->raw_data + field->offset; | |
194 | } | |
195 | ||
aa823f58 | 196 | static int __tp_field__init_ptr(struct tp_field *field, int offset) |
77170988 | 197 | { |
aa823f58 | 198 | field->offset = offset; |
77170988 ACM |
199 | field->pointer = tp_field__ptr; |
200 | return 0; | |
201 | } | |
202 | ||
2c92f982 | 203 | static int tp_field__init_ptr(struct tp_field *field, struct tep_format_field *format_field) |
aa823f58 ACM |
204 | { |
205 | return __tp_field__init_ptr(field, format_field->offset); | |
206 | } | |
207 | ||
77170988 ACM |
208 | struct syscall_tp { |
209 | struct tp_field id; | |
210 | union { | |
211 | struct tp_field args, ret; | |
212 | }; | |
213 | }; | |
214 | ||
215 | static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel, | |
216 | struct tp_field *field, | |
217 | const char *name) | |
218 | { | |
2c92f982 | 219 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
220 | |
221 | if (format_field == NULL) | |
222 | return -1; | |
223 | ||
224 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
225 | } | |
226 | ||
227 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
228 | ({ struct syscall_tp *sc = evsel->priv;\ | |
229 | perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) | |
230 | ||
231 | static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel, | |
232 | struct tp_field *field, | |
233 | const char *name) | |
234 | { | |
2c92f982 | 235 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
236 | |
237 | if (format_field == NULL) | |
238 | return -1; | |
239 | ||
240 | return tp_field__init_ptr(field, format_field); | |
241 | } | |
242 | ||
243 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
244 | ({ struct syscall_tp *sc = evsel->priv;\ | |
245 | perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) | |
246 | ||
247 | static void perf_evsel__delete_priv(struct perf_evsel *evsel) | |
248 | { | |
04662523 | 249 | zfree(&evsel->priv); |
77170988 ACM |
250 | perf_evsel__delete(evsel); |
251 | } | |
252 | ||
d32855fa ACM |
253 | static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel) |
254 | { | |
255 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
256 | ||
257 | if (evsel->priv != NULL) { | |
258 | if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr")) | |
259 | goto out_delete; | |
260 | return 0; | |
261 | } | |
262 | ||
263 | return -ENOMEM; | |
264 | out_delete: | |
265 | zfree(&evsel->priv); | |
266 | return -ENOENT; | |
267 | } | |
268 | ||
d3d1c4bd ACM |
269 | static int perf_evsel__init_augmented_syscall_tp(struct perf_evsel *evsel) |
270 | { | |
271 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
272 | ||
273 | if (evsel->priv != NULL) { /* field, sizeof_field, offsetof_field */ | |
274 | if (__tp_field__init_uint(&sc->id, sizeof(long), sizeof(long long), evsel->needs_swap)) | |
275 | goto out_delete; | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | return -ENOMEM; | |
281 | out_delete: | |
282 | zfree(&evsel->priv); | |
283 | return -EINVAL; | |
284 | } | |
285 | ||
286 | static int perf_evsel__init_augmented_syscall_tp_args(struct perf_evsel *evsel) | |
287 | { | |
288 | struct syscall_tp *sc = evsel->priv; | |
289 | ||
290 | return __tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64)); | |
291 | } | |
292 | ||
b1a9e253 ACM |
293 | static int perf_evsel__init_augmented_syscall_tp_ret(struct perf_evsel *evsel) |
294 | { | |
295 | struct syscall_tp *sc = evsel->priv; | |
296 | ||
297 | return __tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap); | |
298 | } | |
299 | ||
63f11c80 | 300 | static int perf_evsel__init_raw_syscall_tp(struct perf_evsel *evsel, void *handler) |
96695d44 NK |
301 | { |
302 | evsel->priv = malloc(sizeof(struct syscall_tp)); | |
303 | if (evsel->priv != NULL) { | |
304 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) | |
305 | goto out_delete; | |
306 | ||
307 | evsel->handler = handler; | |
308 | return 0; | |
309 | } | |
310 | ||
311 | return -ENOMEM; | |
312 | ||
313 | out_delete: | |
04662523 | 314 | zfree(&evsel->priv); |
96695d44 NK |
315 | return -ENOENT; |
316 | } | |
317 | ||
63f11c80 | 318 | static struct perf_evsel *perf_evsel__raw_syscall_newtp(const char *direction, void *handler) |
77170988 | 319 | { |
ef503831 | 320 | struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); |
77170988 | 321 | |
9aca7f17 | 322 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 323 | if (IS_ERR(evsel)) |
9aca7f17 DA |
324 | evsel = perf_evsel__newtp("syscalls", direction); |
325 | ||
8dd2a131 JO |
326 | if (IS_ERR(evsel)) |
327 | return NULL; | |
328 | ||
63f11c80 | 329 | if (perf_evsel__init_raw_syscall_tp(evsel, handler)) |
8dd2a131 | 330 | goto out_delete; |
77170988 ACM |
331 | |
332 | return evsel; | |
333 | ||
334 | out_delete: | |
335 | perf_evsel__delete_priv(evsel); | |
336 | return NULL; | |
337 | } | |
338 | ||
339 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
340 | ({ struct syscall_tp *fields = evsel->priv; \ | |
341 | fields->name.integer(&fields->name, sample); }) | |
342 | ||
343 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
344 | ({ struct syscall_tp *fields = evsel->priv; \ | |
345 | fields->name.pointer(&fields->name, sample); }) | |
346 | ||
0ae79636 ACM |
347 | size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, int val) |
348 | { | |
349 | int idx = val - sa->offset; | |
1f115cb7 | 350 | |
bc972ada | 351 | if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) |
0ae79636 | 352 | return scnprintf(bf, size, intfmt, val); |
1f115cb7 | 353 | |
0ae79636 | 354 | return scnprintf(bf, size, "%s", sa->entries[idx]); |
03e3adc9 ACM |
355 | } |
356 | ||
975b7c2f ACM |
357 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
358 | const char *intfmt, | |
359 | struct syscall_arg *arg) | |
1f115cb7 | 360 | { |
0ae79636 | 361 | return strarray__scnprintf(arg->parm, bf, size, intfmt, arg->val); |
1f115cb7 ACM |
362 | } |
363 | ||
975b7c2f ACM |
364 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
365 | struct syscall_arg *arg) | |
366 | { | |
367 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
368 | } | |
369 | ||
1f115cb7 ACM |
370 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
371 | ||
83a51694 ACM |
372 | struct strarrays { |
373 | int nr_entries; | |
374 | struct strarray **entries; | |
375 | }; | |
376 | ||
377 | #define DEFINE_STRARRAYS(array) struct strarrays strarrays__##array = { \ | |
378 | .nr_entries = ARRAY_SIZE(array), \ | |
379 | .entries = array, \ | |
380 | } | |
381 | ||
274e86fd ACM |
382 | size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, |
383 | struct syscall_arg *arg) | |
83a51694 ACM |
384 | { |
385 | struct strarrays *sas = arg->parm; | |
386 | int i; | |
387 | ||
388 | for (i = 0; i < sas->nr_entries; ++i) { | |
389 | struct strarray *sa = sas->entries[i]; | |
390 | int idx = arg->val - sa->offset; | |
391 | ||
392 | if (idx >= 0 && idx < sa->nr_entries) { | |
393 | if (sa->entries[idx] == NULL) | |
394 | break; | |
395 | return scnprintf(bf, size, "%s", sa->entries[idx]); | |
396 | } | |
397 | } | |
398 | ||
399 | return scnprintf(bf, size, "%d", arg->val); | |
400 | } | |
401 | ||
48e1f91a ACM |
402 | #ifndef AT_FDCWD |
403 | #define AT_FDCWD -100 | |
404 | #endif | |
405 | ||
75b757ca ACM |
406 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, |
407 | struct syscall_arg *arg) | |
408 | { | |
409 | int fd = arg->val; | |
410 | ||
411 | if (fd == AT_FDCWD) | |
412 | return scnprintf(bf, size, "CWD"); | |
413 | ||
414 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
415 | } | |
416 | ||
417 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
418 | ||
419 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
420 | struct syscall_arg *arg); | |
421 | ||
422 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
423 | ||
2c2b1623 | 424 | size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg) |
13d4ff3e | 425 | { |
01533e97 | 426 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
427 | } |
428 | ||
2c2b1623 | 429 | size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg) |
a1c2552d ACM |
430 | { |
431 | return scnprintf(bf, size, "%d", arg->val); | |
432 | } | |
433 | ||
5dde91ed ACM |
434 | size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg) |
435 | { | |
436 | return scnprintf(bf, size, "%ld", arg->val); | |
437 | } | |
438 | ||
729a7841 ACM |
439 | static const char *bpf_cmd[] = { |
440 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
441 | "MAP_GET_NEXT_KEY", "PROG_LOAD", | |
442 | }; | |
443 | static DEFINE_STRARRAY(bpf_cmd); | |
444 | ||
03e3adc9 ACM |
445 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
446 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); | |
eac032c5 | 447 | |
1f115cb7 ACM |
448 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
449 | static DEFINE_STRARRAY(itimers); | |
450 | ||
b62bee1b ACM |
451 | static const char *keyctl_options[] = { |
452 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
453 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
454 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
455 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
456 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
457 | }; | |
458 | static DEFINE_STRARRAY(keyctl_options); | |
459 | ||
efe6b882 ACM |
460 | static const char *whences[] = { "SET", "CUR", "END", |
461 | #ifdef SEEK_DATA | |
462 | "DATA", | |
463 | #endif | |
464 | #ifdef SEEK_HOLE | |
465 | "HOLE", | |
466 | #endif | |
467 | }; | |
468 | static DEFINE_STRARRAY(whences); | |
f9da0b0c | 469 | |
80f587d5 ACM |
470 | static const char *fcntl_cmds[] = { |
471 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
e000e5e3 ACM |
472 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "GETLK64", |
473 | "SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX", | |
474 | "GETOWNER_UIDS", | |
80f587d5 ACM |
475 | }; |
476 | static DEFINE_STRARRAY(fcntl_cmds); | |
477 | ||
83a51694 ACM |
478 | static const char *fcntl_linux_specific_cmds[] = { |
479 | "SETLEASE", "GETLEASE", "NOTIFY", [5] = "CANCELLK", "DUPFD_CLOEXEC", | |
480 | "SETPIPE_SZ", "GETPIPE_SZ", "ADD_SEALS", "GET_SEALS", | |
64e4561d | 481 | "GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT", |
83a51694 ACM |
482 | }; |
483 | ||
484 | static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, F_LINUX_SPECIFIC_BASE); | |
485 | ||
486 | static struct strarray *fcntl_cmds_arrays[] = { | |
487 | &strarray__fcntl_cmds, | |
488 | &strarray__fcntl_linux_specific_cmds, | |
489 | }; | |
490 | ||
491 | static DEFINE_STRARRAYS(fcntl_cmds_arrays); | |
492 | ||
c045bf02 ACM |
493 | static const char *rlimit_resources[] = { |
494 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
495 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
496 | "RTTIME", | |
497 | }; | |
498 | static DEFINE_STRARRAY(rlimit_resources); | |
499 | ||
eb5b1b14 ACM |
500 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
501 | static DEFINE_STRARRAY(sighow); | |
502 | ||
4f8c1b74 DA |
503 | static const char *clockid[] = { |
504 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
505 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
506 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 DA |
507 | }; |
508 | static DEFINE_STRARRAY(clockid); | |
509 | ||
51108999 ACM |
510 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
511 | struct syscall_arg *arg) | |
512 | { | |
513 | size_t printed = 0; | |
514 | int mode = arg->val; | |
515 | ||
516 | if (mode == F_OK) /* 0 */ | |
517 | return scnprintf(bf, size, "F"); | |
518 | #define P_MODE(n) \ | |
519 | if (mode & n##_OK) { \ | |
520 | printed += scnprintf(bf + printed, size - printed, "%s", #n); \ | |
521 | mode &= ~n##_OK; \ | |
522 | } | |
523 | ||
524 | P_MODE(R); | |
525 | P_MODE(W); | |
526 | P_MODE(X); | |
527 | #undef P_MODE | |
528 | ||
529 | if (mode) | |
530 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
531 | ||
532 | return printed; | |
533 | } | |
534 | ||
535 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
536 | ||
f994592d ACM |
537 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
538 | struct syscall_arg *arg); | |
539 | ||
540 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
541 | ||
46cce19b ACM |
542 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
543 | struct syscall_arg *arg) | |
544 | { | |
545 | int printed = 0, flags = arg->val; | |
546 | ||
547 | #define P_FLAG(n) \ | |
548 | if (flags & O_##n) { \ | |
549 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
550 | flags &= ~O_##n; \ | |
551 | } | |
552 | ||
553 | P_FLAG(CLOEXEC); | |
554 | P_FLAG(NONBLOCK); | |
555 | #undef P_FLAG | |
556 | ||
557 | if (flags) | |
558 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
559 | ||
560 | return printed; | |
561 | } | |
562 | ||
563 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
564 | ||
a355a61e ACM |
565 | #ifndef GRND_NONBLOCK |
566 | #define GRND_NONBLOCK 0x0001 | |
567 | #endif | |
568 | #ifndef GRND_RANDOM | |
569 | #define GRND_RANDOM 0x0002 | |
570 | #endif | |
571 | ||
39878d49 ACM |
572 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
573 | struct syscall_arg *arg) | |
574 | { | |
575 | int printed = 0, flags = arg->val; | |
576 | ||
577 | #define P_FLAG(n) \ | |
578 | if (flags & GRND_##n) { \ | |
579 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
580 | flags &= ~GRND_##n; \ | |
581 | } | |
582 | ||
583 | P_FLAG(RANDOM); | |
584 | P_FLAG(NONBLOCK); | |
585 | #undef P_FLAG | |
586 | ||
587 | if (flags) | |
588 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
589 | ||
590 | return printed; | |
591 | } | |
592 | ||
593 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
594 | ||
82d4a110 ACM |
595 | #define STRARRAY(name, array) \ |
596 | { .scnprintf = SCA_STRARRAY, \ | |
597 | .parm = &strarray__##array, } | |
453350dd | 598 | |
092bd3cd | 599 | #include "trace/beauty/arch_errno_names.c" |
ea8dc3ce | 600 | #include "trace/beauty/eventfd.c" |
d5d71e86 | 601 | #include "trace/beauty/futex_op.c" |
3258abe0 | 602 | #include "trace/beauty/futex_val3.c" |
df4cb167 | 603 | #include "trace/beauty/mmap.c" |
ba2f22cf | 604 | #include "trace/beauty/mode_t.c" |
a30e6259 | 605 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 606 | #include "trace/beauty/open_flags.c" |
62de344e | 607 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 608 | #include "trace/beauty/pid.c" |
a3bca91f | 609 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 610 | #include "trace/beauty/seccomp.c" |
12199d8e | 611 | #include "trace/beauty/signum.c" |
bbf86c43 | 612 | #include "trace/beauty/socket_type.c" |
7206b900 | 613 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 614 | |
82d4a110 ACM |
615 | struct syscall_arg_fmt { |
616 | size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg); | |
496fd346 | 617 | unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val); |
82d4a110 | 618 | void *parm; |
c51bdfec | 619 | const char *name; |
d47737d5 | 620 | bool show_zero; |
82d4a110 ACM |
621 | }; |
622 | ||
514f1c67 ACM |
623 | static struct syscall_fmt { |
624 | const char *name; | |
aec1930b | 625 | const char *alias; |
82d4a110 | 626 | struct syscall_arg_fmt arg[6]; |
332337da | 627 | u8 nr_args; |
11c8e39f | 628 | bool errpid; |
514f1c67 | 629 | bool timeout; |
04b34729 | 630 | bool hexret; |
514f1c67 | 631 | } syscall_fmts[] = { |
1f63139c | 632 | { .name = "access", |
82d4a110 | 633 | .arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, }, |
02ef2884 ACM |
634 | { .name = "bind", |
635 | .arg = { [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, }, }, | |
1f63139c | 636 | { .name = "bpf", |
82d4a110 | 637 | .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, }, |
beccb2b5 | 638 | { .name = "brk", .hexret = true, |
82d4a110 | 639 | .arg = { [0] = { .scnprintf = SCA_HEX, /* brk */ }, }, }, |
1f63139c | 640 | { .name = "clock_gettime", |
82d4a110 | 641 | .arg = { [0] = STRARRAY(clk_id, clockid), }, }, |
33396a3a ACM |
642 | { .name = "clone", .errpid = true, .nr_args = 5, |
643 | .arg = { [0] = { .name = "flags", .scnprintf = SCA_CLONE_FLAGS, }, | |
644 | [1] = { .name = "child_stack", .scnprintf = SCA_HEX, }, | |
645 | [2] = { .name = "parent_tidptr", .scnprintf = SCA_HEX, }, | |
646 | [3] = { .name = "child_tidptr", .scnprintf = SCA_HEX, }, | |
647 | [4] = { .name = "tls", .scnprintf = SCA_HEX, }, }, }, | |
1f63139c | 648 | { .name = "close", |
82d4a110 | 649 | .arg = { [0] = { .scnprintf = SCA_CLOSE_FD, /* fd */ }, }, }, |
d5a7e661 ACM |
650 | { .name = "connect", |
651 | .arg = { [1] = { .scnprintf = SCA_SOCKADDR, /* servaddr */ }, }, }, | |
1f63139c | 652 | { .name = "epoll_ctl", |
82d4a110 | 653 | .arg = { [1] = STRARRAY(op, epoll_ctl_ops), }, }, |
1f63139c | 654 | { .name = "eventfd2", |
82d4a110 | 655 | .arg = { [1] = { .scnprintf = SCA_EFD_FLAGS, /* flags */ }, }, }, |
1f63139c | 656 | { .name = "fchmodat", |
82d4a110 | 657 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 658 | { .name = "fchownat", |
82d4a110 | 659 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 660 | { .name = "fcntl", |
82d4a110 | 661 | .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */ |
39cc355b ACM |
662 | .parm = &strarrays__fcntl_cmds_arrays, |
663 | .show_zero = true, }, | |
82d4a110 | 664 | [2] = { .scnprintf = SCA_FCNTL_ARG, /* arg */ }, }, }, |
1f63139c | 665 | { .name = "flock", |
82d4a110 | 666 | .arg = { [1] = { .scnprintf = SCA_FLOCK, /* cmd */ }, }, }, |
1f63139c ACM |
667 | { .name = "fstat", .alias = "newfstat", }, |
668 | { .name = "fstatat", .alias = "newfstatat", }, | |
669 | { .name = "futex", | |
3258abe0 ACM |
670 | .arg = { [1] = { .scnprintf = SCA_FUTEX_OP, /* op */ }, |
671 | [5] = { .scnprintf = SCA_FUTEX_VAL3, /* val3 */ }, }, }, | |
1f63139c | 672 | { .name = "futimesat", |
82d4a110 | 673 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 674 | { .name = "getitimer", |
82d4a110 | 675 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
c65f1070 | 676 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 677 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 678 | { .name = "getppid", .errpid = true, }, |
1f63139c | 679 | { .name = "getrandom", |
82d4a110 | 680 | .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, }, |
1f63139c | 681 | { .name = "getrlimit", |
82d4a110 | 682 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
2d1073de | 683 | { .name = "gettid", .errpid = true, }, |
1f63139c | 684 | { .name = "ioctl", |
82d4a110 | 685 | .arg = { |
844ae5b4 ACM |
686 | #if defined(__i386__) || defined(__x86_64__) |
687 | /* | |
688 | * FIXME: Make this available to all arches. | |
689 | */ | |
1cc47f2d | 690 | [1] = { .scnprintf = SCA_IOCTL_CMD, /* cmd */ }, |
82d4a110 | 691 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 692 | #else |
82d4a110 | 693 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 694 | #endif |
1de3038d ACM |
695 | { .name = "kcmp", .nr_args = 5, |
696 | .arg = { [0] = { .name = "pid1", .scnprintf = SCA_PID, }, | |
697 | [1] = { .name = "pid2", .scnprintf = SCA_PID, }, | |
698 | [2] = { .name = "type", .scnprintf = SCA_KCMP_TYPE, }, | |
699 | [3] = { .name = "idx1", .scnprintf = SCA_KCMP_IDX, }, | |
700 | [4] = { .name = "idx2", .scnprintf = SCA_KCMP_IDX, }, }, }, | |
1f63139c | 701 | { .name = "keyctl", |
82d4a110 | 702 | .arg = { [0] = STRARRAY(option, keyctl_options), }, }, |
1f63139c | 703 | { .name = "kill", |
82d4a110 | 704 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 705 | { .name = "linkat", |
82d4a110 | 706 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 707 | { .name = "lseek", |
82d4a110 | 708 | .arg = { [2] = STRARRAY(whence, whences), }, }, |
1f63139c ACM |
709 | { .name = "lstat", .alias = "newlstat", }, |
710 | { .name = "madvise", | |
82d4a110 ACM |
711 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
712 | [2] = { .scnprintf = SCA_MADV_BHV, /* behavior */ }, }, }, | |
1f63139c | 713 | { .name = "mkdirat", |
82d4a110 | 714 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 715 | { .name = "mknodat", |
82d4a110 | 716 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 717 | { .name = "mlock", |
82d4a110 | 718 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, }, }, |
1f63139c | 719 | { .name = "mlockall", |
82d4a110 | 720 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, }, }, |
beccb2b5 | 721 | { .name = "mmap", .hexret = true, |
54265664 JO |
722 | /* The standard mmap maps to old_mmap on s390x */ |
723 | #if defined(__s390x__) | |
724 | .alias = "old_mmap", | |
725 | #endif | |
82d4a110 ACM |
726 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, |
727 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, | |
728 | [3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */ }, }, }, | |
73d141ad | 729 | { .name = "mount", |
23c07a23 ACM |
730 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ }, |
731 | [3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */ | |
73d141ad | 732 | .mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, }, |
1f63139c | 733 | { .name = "mprotect", |
82d4a110 ACM |
734 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
735 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, }, | |
1f63139c | 736 | { .name = "mq_unlink", |
82d4a110 | 737 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, }, |
ae685380 | 738 | { .name = "mremap", .hexret = true, |
82d4a110 ACM |
739 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, |
740 | [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, | |
741 | [4] = { .scnprintf = SCA_HEX, /* new_addr */ }, }, }, | |
1f63139c | 742 | { .name = "munlock", |
82d4a110 | 743 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, }, }, |
1f63139c | 744 | { .name = "munmap", |
82d4a110 | 745 | .arg = { [0] = { .scnprintf = SCA_HEX, /* addr */ }, }, }, |
1f63139c | 746 | { .name = "name_to_handle_at", |
82d4a110 | 747 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 748 | { .name = "newfstatat", |
82d4a110 | 749 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 750 | { .name = "open", |
82d4a110 | 751 | .arg = { [1] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, |
1f63139c | 752 | { .name = "open_by_handle_at", |
82d4a110 ACM |
753 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
754 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 755 | { .name = "openat", |
82d4a110 ACM |
756 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
757 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 758 | { .name = "perf_event_open", |
82d4a110 ACM |
759 | .arg = { [2] = { .scnprintf = SCA_INT, /* cpu */ }, |
760 | [3] = { .scnprintf = SCA_FD, /* group_fd */ }, | |
761 | [4] = { .scnprintf = SCA_PERF_FLAGS, /* flags */ }, }, }, | |
1f63139c | 762 | { .name = "pipe2", |
82d4a110 | 763 | .arg = { [1] = { .scnprintf = SCA_PIPE_FLAGS, /* flags */ }, }, }, |
83bc9c37 ACM |
764 | { .name = "pkey_alloc", |
765 | .arg = { [1] = { .scnprintf = SCA_PKEY_ALLOC_ACCESS_RIGHTS, /* access_rights */ }, }, }, | |
766 | { .name = "pkey_free", | |
767 | .arg = { [0] = { .scnprintf = SCA_INT, /* key */ }, }, }, | |
768 | { .name = "pkey_mprotect", | |
769 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, | |
770 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, | |
771 | [3] = { .scnprintf = SCA_INT, /* pkey */ }, }, }, | |
1f63139c ACM |
772 | { .name = "poll", .timeout = true, }, |
773 | { .name = "ppoll", .timeout = true, }, | |
d688d037 ACM |
774 | { .name = "prctl", .alias = "arch_prctl", |
775 | .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */ }, | |
776 | [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ }, | |
777 | [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, }, | |
1f63139c ACM |
778 | { .name = "pread", .alias = "pread64", }, |
779 | { .name = "preadv", .alias = "pread", }, | |
780 | { .name = "prlimit64", | |
82d4a110 | 781 | .arg = { [1] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c ACM |
782 | { .name = "pwrite", .alias = "pwrite64", }, |
783 | { .name = "readlinkat", | |
82d4a110 | 784 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 785 | { .name = "recvfrom", |
82d4a110 | 786 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 787 | { .name = "recvmmsg", |
82d4a110 | 788 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 789 | { .name = "recvmsg", |
82d4a110 | 790 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 791 | { .name = "renameat", |
82d4a110 | 792 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 793 | { .name = "rt_sigaction", |
82d4a110 | 794 | .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 795 | { .name = "rt_sigprocmask", |
82d4a110 | 796 | .arg = { [0] = STRARRAY(how, sighow), }, }, |
1f63139c | 797 | { .name = "rt_sigqueueinfo", |
82d4a110 | 798 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 799 | { .name = "rt_tgsigqueueinfo", |
82d4a110 | 800 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 801 | { .name = "sched_setscheduler", |
82d4a110 | 802 | .arg = { [1] = { .scnprintf = SCA_SCHED_POLICY, /* policy */ }, }, }, |
1f63139c | 803 | { .name = "seccomp", |
82d4a110 ACM |
804 | .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP, /* op */ }, |
805 | [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, }, | |
1f63139c ACM |
806 | { .name = "select", .timeout = true, }, |
807 | { .name = "sendmmsg", | |
82d4a110 | 808 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 809 | { .name = "sendmsg", |
82d4a110 | 810 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 811 | { .name = "sendto", |
6ebb6862 ACM |
812 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, |
813 | [4] = { .scnprintf = SCA_SOCKADDR, /* addr */ }, }, }, | |
c65f1070 | 814 | { .name = "set_tid_address", .errpid = true, }, |
1f63139c | 815 | { .name = "setitimer", |
82d4a110 | 816 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
1f63139c | 817 | { .name = "setrlimit", |
82d4a110 | 818 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c | 819 | { .name = "socket", |
82d4a110 | 820 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
821 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
822 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c | 823 | { .name = "socketpair", |
82d4a110 | 824 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
825 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
826 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c ACM |
827 | { .name = "stat", .alias = "newstat", }, |
828 | { .name = "statx", | |
82d4a110 ACM |
829 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ }, |
830 | [2] = { .scnprintf = SCA_STATX_FLAGS, /* flags */ } , | |
831 | [3] = { .scnprintf = SCA_STATX_MASK, /* mask */ }, }, }, | |
1f63139c | 832 | { .name = "swapoff", |
82d4a110 | 833 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 834 | { .name = "swapon", |
82d4a110 | 835 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 836 | { .name = "symlinkat", |
82d4a110 | 837 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 838 | { .name = "tgkill", |
82d4a110 | 839 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 840 | { .name = "tkill", |
82d4a110 | 841 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
476c92ca ACM |
842 | { .name = "umount2", .alias = "umount", |
843 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, }, | |
1f63139c ACM |
844 | { .name = "uname", .alias = "newuname", }, |
845 | { .name = "unlinkat", | |
82d4a110 | 846 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 847 | { .name = "utimensat", |
82d4a110 | 848 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dirfd */ }, }, }, |
11c8e39f | 849 | { .name = "wait4", .errpid = true, |
82d4a110 | 850 | .arg = { [2] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
11c8e39f | 851 | { .name = "waitid", .errpid = true, |
82d4a110 | 852 | .arg = { [3] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
514f1c67 ACM |
853 | }; |
854 | ||
855 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
856 | { | |
857 | const struct syscall_fmt *fmt = fmtp; | |
858 | return strcmp(name, fmt->name); | |
859 | } | |
860 | ||
861 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
862 | { | |
863 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
864 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
865 | } | |
866 | ||
f932184e ACM |
867 | static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias) |
868 | { | |
869 | int i, nmemb = ARRAY_SIZE(syscall_fmts); | |
870 | ||
871 | for (i = 0; i < nmemb; ++i) { | |
872 | if (syscall_fmts[i].alias && strcmp(syscall_fmts[i].alias, alias) == 0) | |
873 | return &syscall_fmts[i]; | |
874 | } | |
875 | ||
876 | return NULL; | |
877 | } | |
878 | ||
6a648b53 ACM |
879 | /* |
880 | * is_exit: is this "exit" or "exit_group"? | |
881 | * is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter. | |
7a983a0f | 882 | * args_size: sum of the sizes of the syscall arguments, anything after that is augmented stuff: pathname for openat, etc. |
6a648b53 | 883 | */ |
514f1c67 | 884 | struct syscall { |
4963b0f8 | 885 | struct tep_event_format *tp_format; |
f208bd8d | 886 | int nr_args; |
7a983a0f | 887 | int args_size; |
6a648b53 ACM |
888 | bool is_exit; |
889 | bool is_open; | |
2c92f982 | 890 | struct tep_format_field *args; |
514f1c67 ACM |
891 | const char *name; |
892 | struct syscall_fmt *fmt; | |
82d4a110 | 893 | struct syscall_arg_fmt *arg_fmt; |
514f1c67 ACM |
894 | }; |
895 | ||
fd2b2975 ACM |
896 | /* |
897 | * We need to have this 'calculated' boolean because in some cases we really | |
898 | * don't know what is the duration of a syscall, for instance, when we start | |
899 | * a session and some threads are waiting for a syscall to finish, say 'poll', | |
900 | * in which case all we can do is to print "( ? ) for duration and for the | |
901 | * start timestamp. | |
902 | */ | |
903 | static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp) | |
60c907ab ACM |
904 | { |
905 | double duration = (double)t / NSEC_PER_MSEC; | |
906 | size_t printed = fprintf(fp, "("); | |
907 | ||
fd2b2975 | 908 | if (!calculated) |
522283fe | 909 | printed += fprintf(fp, " "); |
fd2b2975 | 910 | else if (duration >= 1.0) |
60c907ab ACM |
911 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); |
912 | else if (duration >= 0.01) | |
913 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
914 | else | |
915 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 916 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
917 | } |
918 | ||
f994592d ACM |
919 | /** |
920 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
921 | * filename.entry_str_pos: Where to insert the string translated from | |
922 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
84486caa ACM |
923 | * ret_scnprintf: syscall args may set this to a different syscall return |
924 | * formatter, for instance, fcntl may return fds, file flags, etc. | |
f994592d | 925 | */ |
752fde44 ACM |
926 | struct thread_trace { |
927 | u64 entry_time; | |
752fde44 | 928 | bool entry_pending; |
efd5745e | 929 | unsigned long nr_events; |
a2ea67d7 | 930 | unsigned long pfmaj, pfmin; |
752fde44 | 931 | char *entry_str; |
1302d88e | 932 | double runtime_ms; |
7ee57434 | 933 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
f994592d ACM |
934 | struct { |
935 | unsigned long ptr; | |
7f4f8001 ACM |
936 | short int entry_str_pos; |
937 | bool pending_open; | |
938 | unsigned int namelen; | |
939 | char *name; | |
f994592d | 940 | } filename; |
75b757ca ACM |
941 | struct { |
942 | int max; | |
943 | char **table; | |
944 | } paths; | |
bf2575c1 DA |
945 | |
946 | struct intlist *syscall_stats; | |
752fde44 ACM |
947 | }; |
948 | ||
949 | static struct thread_trace *thread_trace__new(void) | |
950 | { | |
75b757ca ACM |
951 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
952 | ||
953 | if (ttrace) | |
954 | ttrace->paths.max = -1; | |
955 | ||
bf2575c1 DA |
956 | ttrace->syscall_stats = intlist__new(NULL); |
957 | ||
75b757ca | 958 | return ttrace; |
752fde44 ACM |
959 | } |
960 | ||
c24ff998 | 961 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 962 | { |
efd5745e ACM |
963 | struct thread_trace *ttrace; |
964 | ||
752fde44 ACM |
965 | if (thread == NULL) |
966 | goto fail; | |
967 | ||
89dceb22 NK |
968 | if (thread__priv(thread) == NULL) |
969 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 970 | |
89dceb22 | 971 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
972 | goto fail; |
973 | ||
89dceb22 | 974 | ttrace = thread__priv(thread); |
efd5745e ACM |
975 | ++ttrace->nr_events; |
976 | ||
977 | return ttrace; | |
752fde44 | 978 | fail: |
c24ff998 | 979 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
980 | "WARNING: not enough memory, dropping samples!\n"); |
981 | return NULL; | |
982 | } | |
983 | ||
84486caa ACM |
984 | |
985 | void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg, | |
7ee57434 | 986 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg)) |
84486caa ACM |
987 | { |
988 | struct thread_trace *ttrace = thread__priv(arg->thread); | |
989 | ||
990 | ttrace->ret_scnprintf = ret_scnprintf; | |
991 | } | |
992 | ||
598d02c5 SF |
993 | #define TRACE_PFMAJ (1 << 0) |
994 | #define TRACE_PFMIN (1 << 1) | |
995 | ||
e4d44e83 ACM |
996 | static const size_t trace__entry_str_size = 2048; |
997 | ||
97119f37 | 998 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
75b757ca | 999 | { |
89dceb22 | 1000 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
1001 | |
1002 | if (fd > ttrace->paths.max) { | |
1003 | char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *)); | |
1004 | ||
1005 | if (npath == NULL) | |
1006 | return -1; | |
1007 | ||
1008 | if (ttrace->paths.max != -1) { | |
1009 | memset(npath + ttrace->paths.max + 1, 0, | |
1010 | (fd - ttrace->paths.max) * sizeof(char *)); | |
1011 | } else { | |
1012 | memset(npath, 0, (fd + 1) * sizeof(char *)); | |
1013 | } | |
1014 | ||
1015 | ttrace->paths.table = npath; | |
1016 | ttrace->paths.max = fd; | |
1017 | } | |
1018 | ||
1019 | ttrace->paths.table[fd] = strdup(pathname); | |
1020 | ||
1021 | return ttrace->paths.table[fd] != NULL ? 0 : -1; | |
1022 | } | |
1023 | ||
97119f37 ACM |
1024 | static int thread__read_fd_path(struct thread *thread, int fd) |
1025 | { | |
1026 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
1027 | struct stat st; | |
1028 | int ret; | |
1029 | ||
1030 | if (thread->pid_ == thread->tid) { | |
1031 | scnprintf(linkname, sizeof(linkname), | |
1032 | "/proc/%d/fd/%d", thread->pid_, fd); | |
1033 | } else { | |
1034 | scnprintf(linkname, sizeof(linkname), | |
1035 | "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); | |
1036 | } | |
1037 | ||
1038 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
1039 | return -1; | |
1040 | ||
1041 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
1042 | ||
1043 | if (ret < 0 || ret > st.st_size) | |
1044 | return -1; | |
1045 | ||
1046 | pathname[ret] = '\0'; | |
1047 | return trace__set_fd_pathname(thread, fd, pathname); | |
1048 | } | |
1049 | ||
c522739d ACM |
1050 | static const char *thread__fd_path(struct thread *thread, int fd, |
1051 | struct trace *trace) | |
75b757ca | 1052 | { |
89dceb22 | 1053 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
1054 | |
1055 | if (ttrace == NULL) | |
1056 | return NULL; | |
1057 | ||
1058 | if (fd < 0) | |
1059 | return NULL; | |
1060 | ||
cdcd1e6b | 1061 | if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) { |
c522739d ACM |
1062 | if (!trace->live) |
1063 | return NULL; | |
1064 | ++trace->stats.proc_getname; | |
cdcd1e6b | 1065 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
1066 | return NULL; |
1067 | } | |
75b757ca ACM |
1068 | |
1069 | return ttrace->paths.table[fd]; | |
1070 | } | |
1071 | ||
fc65eb82 | 1072 | size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg) |
75b757ca ACM |
1073 | { |
1074 | int fd = arg->val; | |
1075 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 1076 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
1077 | |
1078 | if (path) | |
1079 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1080 | ||
1081 | return printed; | |
1082 | } | |
1083 | ||
0a2f7540 ACM |
1084 | size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size) |
1085 | { | |
1086 | size_t printed = scnprintf(bf, size, "%d", fd); | |
1087 | struct thread *thread = machine__find_thread(trace->host, pid, pid); | |
1088 | ||
1089 | if (thread) { | |
1090 | const char *path = thread__fd_path(thread, fd, trace); | |
1091 | ||
1092 | if (path) | |
1093 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1094 | ||
1095 | thread__put(thread); | |
1096 | } | |
1097 | ||
1098 | return printed; | |
1099 | } | |
1100 | ||
75b757ca ACM |
1101 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, |
1102 | struct syscall_arg *arg) | |
1103 | { | |
1104 | int fd = arg->val; | |
1105 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 1106 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 1107 | |
04662523 ACM |
1108 | if (ttrace && fd >= 0 && fd <= ttrace->paths.max) |
1109 | zfree(&ttrace->paths.table[fd]); | |
75b757ca ACM |
1110 | |
1111 | return printed; | |
1112 | } | |
1113 | ||
f994592d ACM |
1114 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1115 | unsigned long ptr) | |
1116 | { | |
1117 | struct thread_trace *ttrace = thread__priv(thread); | |
1118 | ||
1119 | ttrace->filename.ptr = ptr; | |
1120 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1121 | } | |
1122 | ||
75d1e306 ACM |
1123 | static size_t syscall_arg__scnprintf_augmented_string(struct syscall_arg *arg, char *bf, size_t size) |
1124 | { | |
1125 | struct augmented_arg *augmented_arg = arg->augmented.args; | |
1126 | ||
1127 | return scnprintf(bf, size, "%.*s", augmented_arg->size, augmented_arg->value); | |
1128 | } | |
1129 | ||
f994592d ACM |
1130 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
1131 | struct syscall_arg *arg) | |
1132 | { | |
1133 | unsigned long ptr = arg->val; | |
1134 | ||
75d1e306 ACM |
1135 | if (arg->augmented.args) |
1136 | return syscall_arg__scnprintf_augmented_string(arg, bf, size); | |
1137 | ||
f994592d ACM |
1138 | if (!arg->trace->vfs_getname) |
1139 | return scnprintf(bf, size, "%#x", ptr); | |
1140 | ||
1141 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
ae9ed035 ACM |
1145 | static bool trace__filter_duration(struct trace *trace, double t) |
1146 | { | |
1147 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1148 | } | |
1149 | ||
fd2b2975 | 1150 | static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
752fde44 ACM |
1151 | { |
1152 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1153 | ||
60c907ab | 1154 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1155 | } |
1156 | ||
fd2b2975 ACM |
1157 | /* |
1158 | * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are | |
1159 | * using ttrace->entry_time for a thread that receives a sys_exit without | |
1160 | * first having received a sys_enter ("poll" issued before tracing session | |
1161 | * starts, lost sys_enter exit due to ring buffer overflow). | |
1162 | */ | |
1163 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) | |
1164 | { | |
1165 | if (tstamp > 0) | |
1166 | return __trace__fprintf_tstamp(trace, tstamp, fp); | |
1167 | ||
1168 | return fprintf(fp, " ? "); | |
1169 | } | |
1170 | ||
f15eb531 | 1171 | static bool done = false; |
ba209f85 | 1172 | static bool interrupted = false; |
f15eb531 | 1173 | |
ba209f85 | 1174 | static void sig_handler(int sig) |
f15eb531 NK |
1175 | { |
1176 | done = true; | |
ba209f85 | 1177 | interrupted = sig == SIGINT; |
f15eb531 NK |
1178 | } |
1179 | ||
6dcbd212 | 1180 | static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp) |
752fde44 | 1181 | { |
6dcbd212 | 1182 | size_t printed = 0; |
752fde44 | 1183 | |
50c95cbd ACM |
1184 | if (trace->multiple_threads) { |
1185 | if (trace->show_comm) | |
1902efe7 | 1186 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
38051234 | 1187 | printed += fprintf(fp, "%d ", thread->tid); |
50c95cbd | 1188 | } |
752fde44 ACM |
1189 | |
1190 | return printed; | |
1191 | } | |
1192 | ||
6dcbd212 ACM |
1193 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
1194 | u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) | |
1195 | { | |
1196 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
1197 | printed += fprintf_duration(duration, duration_calculated, fp); | |
1198 | return printed + trace__fprintf_comm_tid(trace, thread, fp); | |
1199 | } | |
1200 | ||
c24ff998 | 1201 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1202 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1203 | { |
1204 | int ret = 0; | |
1205 | ||
1206 | switch (event->header.type) { | |
1207 | case PERF_RECORD_LOST: | |
c24ff998 | 1208 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1209 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1210 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1211 | break; |
752fde44 | 1212 | default: |
162f0bef | 1213 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1214 | break; |
1215 | } | |
1216 | ||
1217 | return ret; | |
1218 | } | |
1219 | ||
c24ff998 | 1220 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1221 | union perf_event *event, |
162f0bef | 1222 | struct perf_sample *sample, |
752fde44 ACM |
1223 | struct machine *machine) |
1224 | { | |
c24ff998 | 1225 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1226 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1227 | } |
1228 | ||
caf8a0d0 ACM |
1229 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1230 | { | |
1231 | struct machine *machine = vmachine; | |
1232 | ||
1233 | if (machine->kptr_restrict_warned) | |
1234 | return NULL; | |
1235 | ||
1236 | if (symbol_conf.kptr_restrict) { | |
1237 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
1238 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
1239 | "Kernel samples will not be resolved.\n"); | |
1240 | machine->kptr_restrict_warned = true; | |
1241 | return NULL; | |
1242 | } | |
1243 | ||
1244 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1245 | } | |
1246 | ||
752fde44 ACM |
1247 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) |
1248 | { | |
0a7e6d1b | 1249 | int err = symbol__init(NULL); |
752fde44 ACM |
1250 | |
1251 | if (err) | |
1252 | return err; | |
1253 | ||
8fb598e5 DA |
1254 | trace->host = machine__new_host(); |
1255 | if (trace->host == NULL) | |
1256 | return -ENOMEM; | |
752fde44 | 1257 | |
cbd5c178 AV |
1258 | err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr); |
1259 | if (err < 0) | |
1260 | goto out; | |
706c3da4 | 1261 | |
a33fbd56 | 1262 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
9d9cad76 | 1263 | evlist->threads, trace__tool_process, false, |
340b47f5 | 1264 | trace->opts.proc_map_timeout, 1); |
cbd5c178 | 1265 | out: |
752fde44 ACM |
1266 | if (err) |
1267 | symbol__exit(); | |
1268 | ||
1269 | return err; | |
1270 | } | |
1271 | ||
33974a41 AV |
1272 | static void trace__symbols__exit(struct trace *trace) |
1273 | { | |
1274 | machine__exit(trace->host); | |
1275 | trace->host = NULL; | |
1276 | ||
1277 | symbol__exit(); | |
1278 | } | |
1279 | ||
5e58fcfa | 1280 | static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args) |
13d4ff3e | 1281 | { |
5e58fcfa | 1282 | int idx; |
13d4ff3e | 1283 | |
332337da ACM |
1284 | if (nr_args == 6 && sc->fmt && sc->fmt->nr_args != 0) |
1285 | nr_args = sc->fmt->nr_args; | |
1286 | ||
5e58fcfa | 1287 | sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt)); |
82d4a110 | 1288 | if (sc->arg_fmt == NULL) |
13d4ff3e ACM |
1289 | return -1; |
1290 | ||
5e58fcfa ACM |
1291 | for (idx = 0; idx < nr_args; ++idx) { |
1292 | if (sc->fmt) | |
82d4a110 | 1293 | sc->arg_fmt[idx] = sc->fmt->arg[idx]; |
5e58fcfa | 1294 | } |
82d4a110 | 1295 | |
5e58fcfa ACM |
1296 | sc->nr_args = nr_args; |
1297 | return 0; | |
1298 | } | |
1299 | ||
1300 | static int syscall__set_arg_fmts(struct syscall *sc) | |
1301 | { | |
2c92f982 | 1302 | struct tep_format_field *field, *last_field = NULL; |
5e58fcfa ACM |
1303 | int idx = 0, len; |
1304 | ||
1305 | for (field = sc->args; field; field = field->next, ++idx) { | |
7a983a0f ACM |
1306 | last_field = field; |
1307 | ||
5e58fcfa ACM |
1308 | if (sc->fmt && sc->fmt->arg[idx].scnprintf) |
1309 | continue; | |
1f115cb7 | 1310 | |
82d4a110 | 1311 | if (strcmp(field->type, "const char *") == 0 && |
12f3ca4f ACM |
1312 | (strcmp(field->name, "filename") == 0 || |
1313 | strcmp(field->name, "path") == 0 || | |
1314 | strcmp(field->name, "pathname") == 0)) | |
82d4a110 | 1315 | sc->arg_fmt[idx].scnprintf = SCA_FILENAME; |
bb39ccb2 | 1316 | else if (field->flags & TEP_FIELD_IS_POINTER) |
82d4a110 | 1317 | sc->arg_fmt[idx].scnprintf = syscall_arg__scnprintf_hex; |
d1d438a3 | 1318 | else if (strcmp(field->type, "pid_t") == 0) |
82d4a110 | 1319 | sc->arg_fmt[idx].scnprintf = SCA_PID; |
ba2f22cf | 1320 | else if (strcmp(field->type, "umode_t") == 0) |
82d4a110 | 1321 | sc->arg_fmt[idx].scnprintf = SCA_MODE_T; |
b6565c90 ACM |
1322 | else if ((strcmp(field->type, "int") == 0 || |
1323 | strcmp(field->type, "unsigned int") == 0 || | |
1324 | strcmp(field->type, "long") == 0) && | |
1325 | (len = strlen(field->name)) >= 2 && | |
1326 | strcmp(field->name + len - 2, "fd") == 0) { | |
1327 | /* | |
1328 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
1329 | * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c | |
1330 | * 65 int | |
1331 | * 23 unsigned int | |
1332 | * 7 unsigned long | |
1333 | */ | |
82d4a110 | 1334 | sc->arg_fmt[idx].scnprintf = SCA_FD; |
b6565c90 | 1335 | } |
13d4ff3e ACM |
1336 | } |
1337 | ||
7a983a0f ACM |
1338 | if (last_field) |
1339 | sc->args_size = last_field->offset + last_field->size; | |
1340 | ||
13d4ff3e ACM |
1341 | return 0; |
1342 | } | |
1343 | ||
514f1c67 ACM |
1344 | static int trace__read_syscall_info(struct trace *trace, int id) |
1345 | { | |
1346 | char tp_name[128]; | |
1347 | struct syscall *sc; | |
fd0db102 | 1348 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 ACM |
1349 | |
1350 | if (name == NULL) | |
1351 | return -1; | |
514f1c67 ACM |
1352 | |
1353 | if (id > trace->syscalls.max) { | |
1354 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
1355 | ||
1356 | if (nsyscalls == NULL) | |
1357 | return -1; | |
1358 | ||
1359 | if (trace->syscalls.max != -1) { | |
1360 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
1361 | (id - trace->syscalls.max) * sizeof(*sc)); | |
1362 | } else { | |
1363 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
1364 | } | |
1365 | ||
1366 | trace->syscalls.table = nsyscalls; | |
1367 | trace->syscalls.max = id; | |
1368 | } | |
1369 | ||
1370 | sc = trace->syscalls.table + id; | |
3a531260 | 1371 | sc->name = name; |
2ae3a312 | 1372 | |
3a531260 | 1373 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1374 | |
aec1930b | 1375 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1376 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1377 | |
8dd2a131 | 1378 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1379 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1380 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1381 | } |
514f1c67 | 1382 | |
5e58fcfa ACM |
1383 | if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? 6 : sc->tp_format->format.nr_fields)) |
1384 | return -1; | |
1385 | ||
8dd2a131 | 1386 | if (IS_ERR(sc->tp_format)) |
13d4ff3e ACM |
1387 | return -1; |
1388 | ||
f208bd8d | 1389 | sc->args = sc->tp_format->format.fields; |
c42de706 TS |
1390 | /* |
1391 | * We need to check and discard the first variable '__syscall_nr' | |
1392 | * or 'nr' that mean the syscall number. It is needless here. | |
1393 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1394 | */ | |
1395 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1396 | sc->args = sc->args->next; |
1397 | --sc->nr_args; | |
1398 | } | |
1399 | ||
5089f20e | 1400 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
6a648b53 | 1401 | sc->is_open = !strcmp(name, "open") || !strcmp(name, "openat"); |
5089f20e | 1402 | |
13d4ff3e | 1403 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1404 | } |
1405 | ||
d0cc439b ACM |
1406 | static int trace__validate_ev_qualifier(struct trace *trace) |
1407 | { | |
8b3ce757 | 1408 | int err = 0, i; |
27702bcf | 1409 | size_t nr_allocated; |
d0cc439b ACM |
1410 | struct str_node *pos; |
1411 | ||
8b3ce757 ACM |
1412 | trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); |
1413 | trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr * | |
1414 | sizeof(trace->ev_qualifier_ids.entries[0])); | |
1415 | ||
1416 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1417 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1418 | trace->output); | |
1419 | err = -EINVAL; | |
1420 | goto out; | |
1421 | } | |
1422 | ||
27702bcf | 1423 | nr_allocated = trace->ev_qualifier_ids.nr; |
8b3ce757 ACM |
1424 | i = 0; |
1425 | ||
602a1f4d | 1426 | strlist__for_each_entry(pos, trace->ev_qualifier) { |
d0cc439b | 1427 | const char *sc = pos->s; |
27702bcf | 1428 | int id = syscalltbl__id(trace->sctbl, sc), match_next = -1; |
d0cc439b | 1429 | |
8b3ce757 | 1430 | if (id < 0) { |
27702bcf ACM |
1431 | id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next); |
1432 | if (id >= 0) | |
1433 | goto matches; | |
1434 | ||
d0cc439b ACM |
1435 | if (err == 0) { |
1436 | fputs("Error:\tInvalid syscall ", trace->output); | |
1437 | err = -EINVAL; | |
1438 | } else { | |
1439 | fputs(", ", trace->output); | |
1440 | } | |
1441 | ||
1442 | fputs(sc, trace->output); | |
1443 | } | |
27702bcf | 1444 | matches: |
8b3ce757 | 1445 | trace->ev_qualifier_ids.entries[i++] = id; |
27702bcf ACM |
1446 | if (match_next == -1) |
1447 | continue; | |
1448 | ||
1449 | while (1) { | |
1450 | id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); | |
1451 | if (id < 0) | |
1452 | break; | |
1453 | if (nr_allocated == trace->ev_qualifier_ids.nr) { | |
1454 | void *entries; | |
1455 | ||
1456 | nr_allocated += 8; | |
1457 | entries = realloc(trace->ev_qualifier_ids.entries, | |
1458 | nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0])); | |
1459 | if (entries == NULL) { | |
1460 | err = -ENOMEM; | |
1461 | fputs("\nError:\t Not enough memory for parsing\n", trace->output); | |
1462 | goto out_free; | |
1463 | } | |
1464 | trace->ev_qualifier_ids.entries = entries; | |
1465 | } | |
1466 | trace->ev_qualifier_ids.nr++; | |
1467 | trace->ev_qualifier_ids.entries[i++] = id; | |
1468 | } | |
d0cc439b ACM |
1469 | } |
1470 | ||
1471 | if (err < 0) { | |
1472 | fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" | |
1473 | "\nHint:\tand: 'man syscalls'\n", trace->output); | |
27702bcf | 1474 | out_free: |
8b3ce757 ACM |
1475 | zfree(&trace->ev_qualifier_ids.entries); |
1476 | trace->ev_qualifier_ids.nr = 0; | |
d0cc439b | 1477 | } |
8b3ce757 | 1478 | out: |
d0cc439b ACM |
1479 | return err; |
1480 | } | |
1481 | ||
55d43bca DA |
1482 | /* |
1483 | * args is to be interpreted as a series of longs but we need to handle | |
1484 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1485 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1486 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1487 | * variable to read it. Most notably this avoids extended load instructions | |
1488 | * on unaligned addresses | |
1489 | */ | |
325f5091 | 1490 | unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx) |
f9f83b33 ACM |
1491 | { |
1492 | unsigned long val; | |
325f5091 | 1493 | unsigned char *p = arg->args + sizeof(unsigned long) * idx; |
f9f83b33 ACM |
1494 | |
1495 | memcpy(&val, p, sizeof(val)); | |
1496 | return val; | |
1497 | } | |
1498 | ||
c51bdfec ACM |
1499 | static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size, |
1500 | struct syscall_arg *arg) | |
1501 | { | |
1502 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].name) | |
1503 | return scnprintf(bf, size, "%s: ", sc->arg_fmt[arg->idx].name); | |
1504 | ||
1505 | return scnprintf(bf, size, "arg%d: ", arg->idx); | |
1506 | } | |
1507 | ||
496fd346 ACM |
1508 | /* |
1509 | * Check if the value is in fact zero, i.e. mask whatever needs masking, such | |
1510 | * as mount 'flags' argument that needs ignoring some magic flag, see comment | |
1511 | * in tools/perf/trace/beauty/mount_flags.c | |
1512 | */ | |
1513 | static unsigned long syscall__mask_val(struct syscall *sc, struct syscall_arg *arg, unsigned long val) | |
1514 | { | |
1515 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].mask_val) | |
1516 | return sc->arg_fmt[arg->idx].mask_val(arg, val); | |
1517 | ||
1518 | return val; | |
1519 | } | |
1520 | ||
d032d79e ACM |
1521 | static size_t syscall__scnprintf_val(struct syscall *sc, char *bf, size_t size, |
1522 | struct syscall_arg *arg, unsigned long val) | |
1523 | { | |
1524 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].scnprintf) { | |
1525 | arg->val = val; | |
1526 | if (sc->arg_fmt[arg->idx].parm) | |
1527 | arg->parm = sc->arg_fmt[arg->idx].parm; | |
1528 | return sc->arg_fmt[arg->idx].scnprintf(bf, size, arg); | |
1529 | } | |
1530 | return scnprintf(bf, size, "%ld", val); | |
1531 | } | |
1532 | ||
752fde44 | 1533 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
7a983a0f ACM |
1534 | unsigned char *args, void *augmented_args, int augmented_args_size, |
1535 | struct trace *trace, struct thread *thread) | |
514f1c67 | 1536 | { |
514f1c67 | 1537 | size_t printed = 0; |
55d43bca | 1538 | unsigned long val; |
d032d79e ACM |
1539 | u8 bit = 1; |
1540 | struct syscall_arg arg = { | |
1541 | .args = args, | |
7a983a0f ACM |
1542 | .augmented = { |
1543 | .size = augmented_args_size, | |
1544 | .args = augmented_args, | |
1545 | }, | |
d032d79e ACM |
1546 | .idx = 0, |
1547 | .mask = 0, | |
1548 | .trace = trace, | |
1549 | .thread = thread, | |
1550 | }; | |
84486caa ACM |
1551 | struct thread_trace *ttrace = thread__priv(thread); |
1552 | ||
1553 | /* | |
1554 | * Things like fcntl will set this in its 'cmd' formatter to pick the | |
1555 | * right formatter for the return value (an fd? file flags?), which is | |
1556 | * not needed for syscalls that always return a given type, say an fd. | |
1557 | */ | |
1558 | ttrace->ret_scnprintf = NULL; | |
514f1c67 | 1559 | |
f208bd8d | 1560 | if (sc->args != NULL) { |
2c92f982 | 1561 | struct tep_format_field *field; |
6e7eeb51 | 1562 | |
f208bd8d | 1563 | for (field = sc->args; field; |
01533e97 ACM |
1564 | field = field->next, ++arg.idx, bit <<= 1) { |
1565 | if (arg.mask & bit) | |
6e7eeb51 | 1566 | continue; |
55d43bca | 1567 | |
f9f83b33 | 1568 | val = syscall_arg__val(&arg, arg.idx); |
496fd346 ACM |
1569 | /* |
1570 | * Some syscall args need some mask, most don't and | |
1571 | * return val untouched. | |
1572 | */ | |
1573 | val = syscall__mask_val(sc, &arg, val); | |
55d43bca | 1574 | |
4aa58232 ACM |
1575 | /* |
1576 | * Suppress this argument if its value is zero and | |
1577 | * and we don't have a string associated in an | |
1578 | * strarray for it. | |
1579 | */ | |
55d43bca | 1580 | if (val == 0 && |
82d4a110 | 1581 | !(sc->arg_fmt && |
d47737d5 ACM |
1582 | (sc->arg_fmt[arg.idx].show_zero || |
1583 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY || | |
82d4a110 ACM |
1584 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) && |
1585 | sc->arg_fmt[arg.idx].parm)) | |
22ae5cf1 ACM |
1586 | continue; |
1587 | ||
752fde44 | 1588 | printed += scnprintf(bf + printed, size - printed, |
13d4ff3e | 1589 | "%s%s: ", printed ? ", " : "", field->name); |
d032d79e | 1590 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
514f1c67 | 1591 | } |
4c4d6e51 ACM |
1592 | } else if (IS_ERR(sc->tp_format)) { |
1593 | /* | |
1594 | * If we managed to read the tracepoint /format file, then we | |
1595 | * may end up not having any args, like with gettid(), so only | |
1596 | * print the raw args when we didn't manage to read it. | |
1597 | */ | |
332337da | 1598 | while (arg.idx < sc->nr_args) { |
d032d79e ACM |
1599 | if (arg.mask & bit) |
1600 | goto next_arg; | |
1601 | val = syscall_arg__val(&arg, arg.idx); | |
c51bdfec ACM |
1602 | if (printed) |
1603 | printed += scnprintf(bf + printed, size - printed, ", "); | |
1604 | printed += syscall__scnprintf_name(sc, bf + printed, size - printed, &arg); | |
d032d79e ACM |
1605 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
1606 | next_arg: | |
1607 | ++arg.idx; | |
1608 | bit <<= 1; | |
514f1c67 ACM |
1609 | } |
1610 | } | |
1611 | ||
1612 | return printed; | |
1613 | } | |
1614 | ||
ba3d7dee | 1615 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1616 | union perf_event *event, |
ba3d7dee ACM |
1617 | struct perf_sample *sample); |
1618 | ||
1619 | static struct syscall *trace__syscall_info(struct trace *trace, | |
bf2575c1 | 1620 | struct perf_evsel *evsel, int id) |
ba3d7dee | 1621 | { |
ba3d7dee ACM |
1622 | |
1623 | if (id < 0) { | |
adaa18bf ACM |
1624 | |
1625 | /* | |
1626 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
1627 | * before that, leaving at a higher verbosity level till that is | |
1628 | * explained. Reproduced with plain ftrace with: | |
1629 | * | |
1630 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
1631 | * grep "NR -1 " /t/trace_pipe | |
1632 | * | |
1633 | * After generating some load on the machine. | |
1634 | */ | |
1635 | if (verbose > 1) { | |
1636 | static u64 n; | |
1637 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
1638 | id, perf_evsel__name(evsel), ++n); | |
1639 | } | |
ba3d7dee ACM |
1640 | return NULL; |
1641 | } | |
1642 | ||
1643 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
1644 | trace__read_syscall_info(trace, id)) | |
1645 | goto out_cant_read; | |
1646 | ||
1647 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
1648 | goto out_cant_read; | |
1649 | ||
1650 | return &trace->syscalls.table[id]; | |
1651 | ||
1652 | out_cant_read: | |
bb963e16 | 1653 | if (verbose > 0) { |
7c304ee0 ACM |
1654 | fprintf(trace->output, "Problems reading syscall %d", id); |
1655 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
1656 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
1657 | fputs(" information\n", trace->output); | |
1658 | } | |
ba3d7dee ACM |
1659 | return NULL; |
1660 | } | |
1661 | ||
bf2575c1 DA |
1662 | static void thread__update_stats(struct thread_trace *ttrace, |
1663 | int id, struct perf_sample *sample) | |
1664 | { | |
1665 | struct int_node *inode; | |
1666 | struct stats *stats; | |
1667 | u64 duration = 0; | |
1668 | ||
1669 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
1670 | if (inode == NULL) | |
1671 | return; | |
1672 | ||
1673 | stats = inode->priv; | |
1674 | if (stats == NULL) { | |
1675 | stats = malloc(sizeof(struct stats)); | |
1676 | if (stats == NULL) | |
1677 | return; | |
1678 | init_stats(stats); | |
1679 | inode->priv = stats; | |
1680 | } | |
1681 | ||
1682 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
1683 | duration = sample->time - ttrace->entry_time; | |
1684 | ||
1685 | update_stats(stats, duration); | |
1686 | } | |
1687 | ||
522283fe | 1688 | static int trace__printf_interrupted_entry(struct trace *trace) |
e596663e ACM |
1689 | { |
1690 | struct thread_trace *ttrace; | |
e596663e ACM |
1691 | size_t printed; |
1692 | ||
0a6545bd | 1693 | if (trace->failure_only || trace->current == NULL) |
e596663e ACM |
1694 | return 0; |
1695 | ||
1696 | ttrace = thread__priv(trace->current); | |
1697 | ||
1698 | if (!ttrace->entry_pending) | |
1699 | return 0; | |
1700 | ||
522283fe | 1701 | printed = trace__fprintf_entry_head(trace, trace->current, 0, false, ttrace->entry_time, trace->output); |
e596663e ACM |
1702 | printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str); |
1703 | ttrace->entry_pending = false; | |
1704 | ||
5067a8cd ACM |
1705 | ++trace->nr_events_printed; |
1706 | ||
e596663e ACM |
1707 | return printed; |
1708 | } | |
1709 | ||
591421e1 ACM |
1710 | static int trace__fprintf_sample(struct trace *trace, struct perf_evsel *evsel, |
1711 | struct perf_sample *sample, struct thread *thread) | |
1712 | { | |
1713 | int printed = 0; | |
1714 | ||
1715 | if (trace->print_sample) { | |
1716 | double ts = (double)sample->time / NSEC_PER_MSEC; | |
1717 | ||
1718 | printed += fprintf(trace->output, "%22s %10.3f %s %d/%d [%d]\n", | |
1719 | perf_evsel__name(evsel), ts, | |
1720 | thread__comm_str(thread), | |
1721 | sample->pid, sample->tid, sample->cpu); | |
1722 | } | |
1723 | ||
1724 | return printed; | |
1725 | } | |
1726 | ||
8a041f86 ACM |
1727 | static void *syscall__augmented_args(struct syscall *sc, struct perf_sample *sample, int *augmented_args_size) |
1728 | { | |
1729 | void *augmented_args = NULL; | |
1730 | ||
1731 | *augmented_args_size = sample->raw_size - sc->args_size; | |
1732 | if (*augmented_args_size > 0) | |
1733 | augmented_args = sample->raw_data + sc->args_size; | |
1734 | ||
1735 | return augmented_args; | |
1736 | } | |
1737 | ||
ba3d7dee | 1738 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1739 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1740 | struct perf_sample *sample) |
1741 | { | |
752fde44 | 1742 | char *msg; |
ba3d7dee | 1743 | void *args; |
752fde44 | 1744 | size_t printed = 0; |
2ae3a312 | 1745 | struct thread *thread; |
b91fc39f | 1746 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
db2da3f8 ACM |
1747 | int augmented_args_size = 0; |
1748 | void *augmented_args = NULL; | |
bf2575c1 | 1749 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1750 | struct thread_trace *ttrace; |
1751 | ||
1752 | if (sc == NULL) | |
1753 | return -1; | |
ba3d7dee | 1754 | |
8fb598e5 | 1755 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1756 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1757 | if (ttrace == NULL) |
b91fc39f | 1758 | goto out_put; |
ba3d7dee | 1759 | |
591421e1 ACM |
1760 | trace__fprintf_sample(trace, evsel, sample, thread); |
1761 | ||
77170988 | 1762 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
1763 | |
1764 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 1765 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 1766 | if (!ttrace->entry_str) |
b91fc39f | 1767 | goto out_put; |
752fde44 ACM |
1768 | } |
1769 | ||
5cf9c84e | 1770 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
522283fe | 1771 | trace__printf_interrupted_entry(trace); |
db2da3f8 ACM |
1772 | /* |
1773 | * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible | |
1774 | * arguments, even if the syscall being handled, say "openat", uses only 4 arguments | |
1775 | * this breaks syscall__augmented_args() check for augmented args, as we calculate | |
1776 | * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file, | |
1777 | * so when handling, say the openat syscall, we end up getting 6 args for the | |
1778 | * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly | |
1779 | * thinking that the extra 2 u64 args are the augmented filename, so just check | |
1780 | * here and avoid using augmented syscalls when the evsel is the raw_syscalls one. | |
1781 | */ | |
1782 | if (evsel != trace->syscalls.events.sys_enter) | |
1783 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size); | |
752fde44 ACM |
1784 | ttrace->entry_time = sample->time; |
1785 | msg = ttrace->entry_str; | |
e4d44e83 | 1786 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 1787 | |
e4d44e83 | 1788 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
db2da3f8 | 1789 | args, augmented_args, augmented_args_size, trace, thread); |
752fde44 | 1790 | |
5089f20e | 1791 | if (sc->is_exit) { |
0a6545bd | 1792 | if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) { |
fd2b2975 | 1793 | trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output); |
c008f78f | 1794 | fprintf(trace->output, "%-70s)\n", ttrace->entry_str); |
ae9ed035 | 1795 | } |
7f4f8001 | 1796 | } else { |
752fde44 | 1797 | ttrace->entry_pending = true; |
7f4f8001 ACM |
1798 | /* See trace__vfs_getname & trace__sys_exit */ |
1799 | ttrace->filename.pending_open = false; | |
1800 | } | |
ba3d7dee | 1801 | |
f3b623b8 ACM |
1802 | if (trace->current != thread) { |
1803 | thread__put(trace->current); | |
1804 | trace->current = thread__get(thread); | |
1805 | } | |
b91fc39f ACM |
1806 | err = 0; |
1807 | out_put: | |
1808 | thread__put(thread); | |
1809 | return err; | |
ba3d7dee ACM |
1810 | } |
1811 | ||
a98392bb ACM |
1812 | static int trace__fprintf_sys_enter(struct trace *trace, struct perf_evsel *evsel, |
1813 | struct perf_sample *sample) | |
1814 | { | |
a98392bb ACM |
1815 | struct thread_trace *ttrace; |
1816 | struct thread *thread; | |
f3acd886 ACM |
1817 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
1818 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
a98392bb | 1819 | char msg[1024]; |
7a983a0f ACM |
1820 | void *args, *augmented_args = NULL; |
1821 | int augmented_args_size; | |
a98392bb | 1822 | |
a98392bb ACM |
1823 | if (sc == NULL) |
1824 | return -1; | |
1825 | ||
1826 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1827 | ttrace = thread__trace(thread, trace->output); | |
1828 | /* | |
1829 | * We need to get ttrace just to make sure it is there when syscall__scnprintf_args() | |
1830 | * and the rest of the beautifiers accessing it via struct syscall_arg touches it. | |
1831 | */ | |
1832 | if (ttrace == NULL) | |
1833 | goto out_put; | |
1834 | ||
f3acd886 | 1835 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
8a041f86 | 1836 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size); |
7a983a0f | 1837 | syscall__scnprintf_args(sc, msg, sizeof(msg), args, augmented_args, augmented_args_size, trace, thread); |
a98392bb ACM |
1838 | fprintf(trace->output, "%s", msg); |
1839 | err = 0; | |
1840 | out_put: | |
1841 | thread__put(thread); | |
1842 | return err; | |
1843 | } | |
1844 | ||
5cf9c84e ACM |
1845 | static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evsel, |
1846 | struct perf_sample *sample, | |
1847 | struct callchain_cursor *cursor) | |
202ff968 ACM |
1848 | { |
1849 | struct addr_location al; | |
3a9e9a47 RB |
1850 | int max_stack = evsel->attr.sample_max_stack ? |
1851 | evsel->attr.sample_max_stack : | |
1852 | trace->max_stack; | |
4291bf5c | 1853 | int err; |
5cf9c84e | 1854 | |
4291bf5c | 1855 | if (machine__resolve(trace->host, &al, sample) < 0) |
5cf9c84e ACM |
1856 | return -1; |
1857 | ||
4291bf5c ACM |
1858 | err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack); |
1859 | addr_location__put(&al); | |
1860 | return err; | |
5cf9c84e ACM |
1861 | } |
1862 | ||
1863 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
1864 | { | |
202ff968 | 1865 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
1866 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
1867 | EVSEL__PRINT_DSO | | |
1868 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 1869 | |
d327e60c | 1870 | return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output); |
202ff968 ACM |
1871 | } |
1872 | ||
092bd3cd HB |
1873 | static const char *errno_to_name(struct perf_evsel *evsel, int err) |
1874 | { | |
1875 | struct perf_env *env = perf_evsel__env(evsel); | |
1876 | const char *arch_name = perf_env__arch(env); | |
1877 | ||
1878 | return arch_syscalls__strerrno(arch_name, err); | |
1879 | } | |
1880 | ||
ba3d7dee | 1881 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1882 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1883 | struct perf_sample *sample) |
1884 | { | |
2c82c3ad | 1885 | long ret; |
60c907ab | 1886 | u64 duration = 0; |
fd2b2975 | 1887 | bool duration_calculated = false; |
2ae3a312 | 1888 | struct thread *thread; |
5cf9c84e | 1889 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0; |
bf2575c1 | 1890 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1891 | struct thread_trace *ttrace; |
1892 | ||
1893 | if (sc == NULL) | |
1894 | return -1; | |
ba3d7dee | 1895 | |
8fb598e5 | 1896 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1897 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1898 | if (ttrace == NULL) |
b91fc39f | 1899 | goto out_put; |
ba3d7dee | 1900 | |
591421e1 ACM |
1901 | trace__fprintf_sample(trace, evsel, sample, thread); |
1902 | ||
bf2575c1 DA |
1903 | if (trace->summary) |
1904 | thread__update_stats(ttrace, id, sample); | |
1905 | ||
77170988 | 1906 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 1907 | |
6a648b53 | 1908 | if (sc->is_open && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
1909 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
1910 | ttrace->filename.pending_open = false; | |
c522739d ACM |
1911 | ++trace->stats.vfs_getname; |
1912 | } | |
1913 | ||
ae9ed035 | 1914 | if (ttrace->entry_time) { |
60c907ab | 1915 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
1916 | if (trace__filter_duration(trace, duration)) |
1917 | goto out; | |
fd2b2975 | 1918 | duration_calculated = true; |
ae9ed035 ACM |
1919 | } else if (trace->duration_filter) |
1920 | goto out; | |
60c907ab | 1921 | |
5cf9c84e ACM |
1922 | if (sample->callchain) { |
1923 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1924 | if (callchain_ret == 0) { | |
1925 | if (callchain_cursor.nr < trace->min_stack) | |
1926 | goto out; | |
1927 | callchain_ret = 1; | |
1928 | } | |
1929 | } | |
1930 | ||
0a6545bd | 1931 | if (trace->summary_only || (ret >= 0 && trace->failure_only)) |
fd2eabaf DA |
1932 | goto out; |
1933 | ||
fd2b2975 | 1934 | trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output); |
752fde44 ACM |
1935 | |
1936 | if (ttrace->entry_pending) { | |
c24ff998 | 1937 | fprintf(trace->output, "%-70s", ttrace->entry_str); |
752fde44 | 1938 | } else { |
c24ff998 ACM |
1939 | fprintf(trace->output, " ... ["); |
1940 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); | |
1941 | fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
1942 | } |
1943 | ||
da3c9a44 | 1944 | if (sc->fmt == NULL) { |
1f63139c ACM |
1945 | if (ret < 0) |
1946 | goto errno_print; | |
da3c9a44 | 1947 | signed_print: |
6f8fe61e | 1948 | fprintf(trace->output, ") = %ld", ret); |
1f63139c ACM |
1949 | } else if (ret < 0) { |
1950 | errno_print: { | |
942a91ed | 1951 | char bf[STRERR_BUFSIZE]; |
c8b5f2c9 | 1952 | const char *emsg = str_error_r(-ret, bf, sizeof(bf)), |
092bd3cd | 1953 | *e = errno_to_name(evsel, -ret); |
ba3d7dee | 1954 | |
c24ff998 | 1955 | fprintf(trace->output, ") = -1 %s %s", e, emsg); |
1f63139c | 1956 | } |
da3c9a44 | 1957 | } else if (ret == 0 && sc->fmt->timeout) |
c24ff998 | 1958 | fprintf(trace->output, ") = 0 Timeout"); |
84486caa ACM |
1959 | else if (ttrace->ret_scnprintf) { |
1960 | char bf[1024]; | |
7ee57434 ACM |
1961 | struct syscall_arg arg = { |
1962 | .val = ret, | |
1963 | .thread = thread, | |
1964 | .trace = trace, | |
1965 | }; | |
1966 | ttrace->ret_scnprintf(bf, sizeof(bf), &arg); | |
84486caa ACM |
1967 | ttrace->ret_scnprintf = NULL; |
1968 | fprintf(trace->output, ") = %s", bf); | |
1969 | } else if (sc->fmt->hexret) | |
2c82c3ad | 1970 | fprintf(trace->output, ") = %#lx", ret); |
11c8e39f ACM |
1971 | else if (sc->fmt->errpid) { |
1972 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
1973 | ||
1974 | if (child != NULL) { | |
1975 | fprintf(trace->output, ") = %ld", ret); | |
1976 | if (child->comm_set) | |
1977 | fprintf(trace->output, " (%s)", thread__comm_str(child)); | |
1978 | thread__put(child); | |
1979 | } | |
1980 | } else | |
da3c9a44 | 1981 | goto signed_print; |
ba3d7dee | 1982 | |
c24ff998 | 1983 | fputc('\n', trace->output); |
566a0885 | 1984 | |
5067a8cd ACM |
1985 | /* |
1986 | * We only consider an 'event' for the sake of --max-events a non-filtered | |
1987 | * sys_enter + sys_exit and other tracepoint events. | |
1988 | */ | |
1989 | if (++trace->nr_events_printed == trace->max_events && trace->max_events != ULONG_MAX) | |
1990 | interrupted = true; | |
1991 | ||
5cf9c84e ACM |
1992 | if (callchain_ret > 0) |
1993 | trace__fprintf_callchain(trace, sample); | |
1994 | else if (callchain_ret < 0) | |
1995 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
ae9ed035 | 1996 | out: |
752fde44 | 1997 | ttrace->entry_pending = false; |
b91fc39f ACM |
1998 | err = 0; |
1999 | out_put: | |
2000 | thread__put(thread); | |
2001 | return err; | |
ba3d7dee ACM |
2002 | } |
2003 | ||
c522739d | 2004 | static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 2005 | union perf_event *event __maybe_unused, |
c522739d ACM |
2006 | struct perf_sample *sample) |
2007 | { | |
f994592d ACM |
2008 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2009 | struct thread_trace *ttrace; | |
2010 | size_t filename_len, entry_str_len, to_move; | |
2011 | ssize_t remaining_space; | |
2012 | char *pos; | |
7f4f8001 | 2013 | const char *filename = perf_evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
2014 | |
2015 | if (!thread) | |
2016 | goto out; | |
2017 | ||
2018 | ttrace = thread__priv(thread); | |
2019 | if (!ttrace) | |
ef65e96e | 2020 | goto out_put; |
f994592d | 2021 | |
7f4f8001 | 2022 | filename_len = strlen(filename); |
39f0e7a8 | 2023 | if (filename_len == 0) |
ef65e96e | 2024 | goto out_put; |
7f4f8001 ACM |
2025 | |
2026 | if (ttrace->filename.namelen < filename_len) { | |
2027 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
2028 | ||
2029 | if (f == NULL) | |
ef65e96e | 2030 | goto out_put; |
7f4f8001 ACM |
2031 | |
2032 | ttrace->filename.namelen = filename_len; | |
2033 | ttrace->filename.name = f; | |
2034 | } | |
2035 | ||
2036 | strcpy(ttrace->filename.name, filename); | |
2037 | ttrace->filename.pending_open = true; | |
2038 | ||
f994592d | 2039 | if (!ttrace->filename.ptr) |
ef65e96e | 2040 | goto out_put; |
f994592d ACM |
2041 | |
2042 | entry_str_len = strlen(ttrace->entry_str); | |
2043 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
2044 | if (remaining_space <= 0) | |
ef65e96e | 2045 | goto out_put; |
f994592d | 2046 | |
f994592d ACM |
2047 | if (filename_len > (size_t)remaining_space) { |
2048 | filename += filename_len - remaining_space; | |
2049 | filename_len = remaining_space; | |
2050 | } | |
2051 | ||
2052 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
2053 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
2054 | memmove(pos + filename_len, pos, to_move); | |
2055 | memcpy(pos, filename, filename_len); | |
2056 | ||
2057 | ttrace->filename.ptr = 0; | |
2058 | ttrace->filename.entry_str_pos = 0; | |
ef65e96e ACM |
2059 | out_put: |
2060 | thread__put(thread); | |
f994592d | 2061 | out: |
c522739d ACM |
2062 | return 0; |
2063 | } | |
2064 | ||
1302d88e | 2065 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 2066 | union perf_event *event __maybe_unused, |
1302d88e ACM |
2067 | struct perf_sample *sample) |
2068 | { | |
2069 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
2070 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
8fb598e5 | 2071 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
2072 | sample->pid, |
2073 | sample->tid); | |
c24ff998 | 2074 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
2075 | |
2076 | if (ttrace == NULL) | |
2077 | goto out_dump; | |
2078 | ||
2079 | ttrace->runtime_ms += runtime_ms; | |
2080 | trace->runtime_ms += runtime_ms; | |
ef65e96e | 2081 | out_put: |
b91fc39f | 2082 | thread__put(thread); |
1302d88e ACM |
2083 | return 0; |
2084 | ||
2085 | out_dump: | |
c24ff998 | 2086 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
2087 | evsel->name, |
2088 | perf_evsel__strval(evsel, sample, "comm"), | |
2089 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
2090 | runtime, | |
2091 | perf_evsel__intval(evsel, sample, "vruntime")); | |
ef65e96e | 2092 | goto out_put; |
1302d88e ACM |
2093 | } |
2094 | ||
923d0c9a ACM |
2095 | static int bpf_output__printer(enum binary_printer_ops op, |
2096 | unsigned int val, void *extra __maybe_unused, FILE *fp) | |
1d6c9407 | 2097 | { |
1d6c9407 WN |
2098 | unsigned char ch = (unsigned char)val; |
2099 | ||
2100 | switch (op) { | |
2101 | case BINARY_PRINT_CHAR_DATA: | |
923d0c9a | 2102 | return fprintf(fp, "%c", isprint(ch) ? ch : '.'); |
1d6c9407 WN |
2103 | case BINARY_PRINT_DATA_BEGIN: |
2104 | case BINARY_PRINT_LINE_BEGIN: | |
2105 | case BINARY_PRINT_ADDR: | |
2106 | case BINARY_PRINT_NUM_DATA: | |
2107 | case BINARY_PRINT_NUM_PAD: | |
2108 | case BINARY_PRINT_SEP: | |
2109 | case BINARY_PRINT_CHAR_PAD: | |
2110 | case BINARY_PRINT_LINE_END: | |
2111 | case BINARY_PRINT_DATA_END: | |
2112 | default: | |
2113 | break; | |
2114 | } | |
923d0c9a ACM |
2115 | |
2116 | return 0; | |
1d6c9407 WN |
2117 | } |
2118 | ||
2119 | static void bpf_output__fprintf(struct trace *trace, | |
2120 | struct perf_sample *sample) | |
2121 | { | |
923d0c9a ACM |
2122 | binary__fprintf(sample->raw_data, sample->raw_size, 8, |
2123 | bpf_output__printer, NULL, trace->output); | |
5067a8cd | 2124 | ++trace->nr_events_printed; |
1d6c9407 WN |
2125 | } |
2126 | ||
14a052df ACM |
2127 | static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel, |
2128 | union perf_event *event __maybe_unused, | |
2129 | struct perf_sample *sample) | |
2130 | { | |
a9c5e6c1 | 2131 | struct thread *thread; |
7ad35615 | 2132 | int callchain_ret = 0; |
a9c5e6c1 ACM |
2133 | /* |
2134 | * Check if we called perf_evsel__disable(evsel) due to, for instance, | |
2135 | * this event's max_events having been hit and this is an entry coming | |
2136 | * from the ring buffer that we should discard, since the max events | |
2137 | * have already been considered/printed. | |
2138 | */ | |
2139 | if (evsel->disabled) | |
2140 | return 0; | |
2141 | ||
2142 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
7ad35615 ACM |
2143 | |
2144 | if (sample->callchain) { | |
2145 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2146 | if (callchain_ret == 0) { | |
2147 | if (callchain_cursor.nr < trace->min_stack) | |
2148 | goto out; | |
2149 | callchain_ret = 1; | |
2150 | } | |
2151 | } | |
2152 | ||
522283fe | 2153 | trace__printf_interrupted_entry(trace); |
14a052df | 2154 | trace__fprintf_tstamp(trace, sample->time, trace->output); |
0808921a ACM |
2155 | |
2156 | if (trace->trace_syscalls) | |
2157 | fprintf(trace->output, "( ): "); | |
2158 | ||
c4191e55 ACM |
2159 | if (thread) |
2160 | trace__fprintf_comm_tid(trace, thread, trace->output); | |
2161 | ||
1cdf618f ACM |
2162 | if (evsel == trace->syscalls.events.augmented) { |
2163 | int id = perf_evsel__sc_tp_uint(evsel, id, sample); | |
2164 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
2165 | ||
2166 | if (sc) { | |
c4191e55 ACM |
2167 | fprintf(trace->output, "%s(", sc->name); |
2168 | trace__fprintf_sys_enter(trace, evsel, sample); | |
2169 | fputc(')', trace->output); | |
2170 | goto newline; | |
1cdf618f ACM |
2171 | } |
2172 | ||
2173 | /* | |
2174 | * XXX: Not having the associated syscall info or not finding/adding | |
2175 | * the thread should never happen, but if it does... | |
2176 | * fall thru and print it as a bpf_output event. | |
2177 | */ | |
2178 | } | |
2179 | ||
0808921a | 2180 | fprintf(trace->output, "%s:", evsel->name); |
14a052df | 2181 | |
1d6c9407 | 2182 | if (perf_evsel__is_bpf_output(evsel)) { |
1cdf618f | 2183 | bpf_output__fprintf(trace, sample); |
1d6c9407 | 2184 | } else if (evsel->tp_format) { |
a98392bb ACM |
2185 | if (strncmp(evsel->tp_format->name, "sys_enter_", 10) || |
2186 | trace__fprintf_sys_enter(trace, evsel, sample)) { | |
2187 | event_format__fprintf(evsel->tp_format, sample->cpu, | |
2188 | sample->raw_data, sample->raw_size, | |
2189 | trace->output); | |
5067a8cd | 2190 | ++trace->nr_events_printed; |
a9c5e6c1 ACM |
2191 | |
2192 | if (evsel->max_events != ULONG_MAX && ++evsel->nr_events_printed == evsel->max_events) { | |
2193 | perf_evsel__disable(evsel); | |
2194 | perf_evsel__close(evsel); | |
2195 | } | |
a98392bb | 2196 | } |
14a052df ACM |
2197 | } |
2198 | ||
1cdf618f | 2199 | newline: |
51125a29 | 2200 | fprintf(trace->output, "\n"); |
202ff968 | 2201 | |
7ad35615 ACM |
2202 | if (callchain_ret > 0) |
2203 | trace__fprintf_callchain(trace, sample); | |
2204 | else if (callchain_ret < 0) | |
2205 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
2206 | out: | |
a937c665 | 2207 | thread__put(thread); |
14a052df ACM |
2208 | return 0; |
2209 | } | |
2210 | ||
598d02c5 SF |
2211 | static void print_location(FILE *f, struct perf_sample *sample, |
2212 | struct addr_location *al, | |
2213 | bool print_dso, bool print_sym) | |
2214 | { | |
2215 | ||
bb963e16 | 2216 | if ((verbose > 0 || print_dso) && al->map) |
598d02c5 SF |
2217 | fprintf(f, "%s@", al->map->dso->long_name); |
2218 | ||
bb963e16 | 2219 | if ((verbose > 0 || print_sym) && al->sym) |
4414a3c5 | 2220 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
2221 | al->addr - al->sym->start); |
2222 | else if (al->map) | |
4414a3c5 | 2223 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 2224 | else |
4414a3c5 | 2225 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
2226 | } |
2227 | ||
2228 | static int trace__pgfault(struct trace *trace, | |
2229 | struct perf_evsel *evsel, | |
473398a2 | 2230 | union perf_event *event __maybe_unused, |
598d02c5 SF |
2231 | struct perf_sample *sample) |
2232 | { | |
2233 | struct thread *thread; | |
598d02c5 SF |
2234 | struct addr_location al; |
2235 | char map_type = 'd'; | |
a2ea67d7 | 2236 | struct thread_trace *ttrace; |
b91fc39f | 2237 | int err = -1; |
1df54290 | 2238 | int callchain_ret = 0; |
598d02c5 SF |
2239 | |
2240 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1df54290 ACM |
2241 | |
2242 | if (sample->callchain) { | |
2243 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2244 | if (callchain_ret == 0) { | |
2245 | if (callchain_cursor.nr < trace->min_stack) | |
2246 | goto out_put; | |
2247 | callchain_ret = 1; | |
2248 | } | |
2249 | } | |
2250 | ||
a2ea67d7 SF |
2251 | ttrace = thread__trace(thread, trace->output); |
2252 | if (ttrace == NULL) | |
b91fc39f | 2253 | goto out_put; |
a2ea67d7 SF |
2254 | |
2255 | if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) | |
2256 | ttrace->pfmaj++; | |
2257 | else | |
2258 | ttrace->pfmin++; | |
2259 | ||
2260 | if (trace->summary_only) | |
b91fc39f | 2261 | goto out; |
598d02c5 | 2262 | |
4546263d | 2263 | thread__find_symbol(thread, sample->cpumode, sample->ip, &al); |
598d02c5 | 2264 | |
fd2b2975 | 2265 | trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output); |
598d02c5 SF |
2266 | |
2267 | fprintf(trace->output, "%sfault [", | |
2268 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? | |
2269 | "maj" : "min"); | |
2270 | ||
2271 | print_location(trace->output, sample, &al, false, true); | |
2272 | ||
2273 | fprintf(trace->output, "] => "); | |
2274 | ||
117d3c24 | 2275 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2276 | |
2277 | if (!al.map) { | |
4546263d | 2278 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2279 | |
2280 | if (al.map) | |
2281 | map_type = 'x'; | |
2282 | else | |
2283 | map_type = '?'; | |
2284 | } | |
2285 | ||
2286 | print_location(trace->output, sample, &al, true, false); | |
2287 | ||
2288 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 2289 | |
1df54290 ACM |
2290 | if (callchain_ret > 0) |
2291 | trace__fprintf_callchain(trace, sample); | |
2292 | else if (callchain_ret < 0) | |
2293 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
5067a8cd ACM |
2294 | |
2295 | ++trace->nr_events_printed; | |
b91fc39f ACM |
2296 | out: |
2297 | err = 0; | |
2298 | out_put: | |
2299 | thread__put(thread); | |
2300 | return err; | |
598d02c5 SF |
2301 | } |
2302 | ||
e6001980 | 2303 | static void trace__set_base_time(struct trace *trace, |
8a07a809 | 2304 | struct perf_evsel *evsel, |
e6001980 ACM |
2305 | struct perf_sample *sample) |
2306 | { | |
8a07a809 ACM |
2307 | /* |
2308 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
2309 | * and don't use sample->time unconditionally, we may end up having | |
2310 | * some other event in the future without PERF_SAMPLE_TIME for good | |
2311 | * reason, i.e. we may not be interested in its timestamps, just in | |
2312 | * it taking place, picking some piece of information when it | |
2313 | * appears in our event stream (vfs_getname comes to mind). | |
2314 | */ | |
2315 | if (trace->base_time == 0 && !trace->full_time && | |
2316 | (evsel->attr.sample_type & PERF_SAMPLE_TIME)) | |
e6001980 ACM |
2317 | trace->base_time = sample->time; |
2318 | } | |
2319 | ||
6810fc91 | 2320 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 2321 | union perf_event *event, |
6810fc91 DA |
2322 | struct perf_sample *sample, |
2323 | struct perf_evsel *evsel, | |
2324 | struct machine *machine __maybe_unused) | |
2325 | { | |
2326 | struct trace *trace = container_of(tool, struct trace, tool); | |
aa07df6e | 2327 | struct thread *thread; |
6810fc91 DA |
2328 | int err = 0; |
2329 | ||
744a9719 | 2330 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 2331 | |
aa07df6e DA |
2332 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2333 | if (thread && thread__is_filtered(thread)) | |
ef65e96e | 2334 | goto out; |
bdc89661 | 2335 | |
e6001980 | 2336 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 2337 | |
3160565f DA |
2338 | if (handler) { |
2339 | ++trace->nr_events; | |
0c82adcf | 2340 | handler(trace, evsel, event, sample); |
3160565f | 2341 | } |
ef65e96e ACM |
2342 | out: |
2343 | thread__put(thread); | |
6810fc91 DA |
2344 | return err; |
2345 | } | |
2346 | ||
1e28fe0a | 2347 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
2348 | { |
2349 | unsigned int rec_argc, i, j; | |
2350 | const char **rec_argv; | |
2351 | const char * const record_args[] = { | |
2352 | "record", | |
2353 | "-R", | |
2354 | "-m", "1024", | |
2355 | "-c", "1", | |
5e2485b1 DA |
2356 | }; |
2357 | ||
1e28fe0a SF |
2358 | const char * const sc_args[] = { "-e", }; |
2359 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
2360 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
2361 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
2362 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
2363 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
2364 | ||
9aca7f17 | 2365 | /* +1 is for the event string below */ |
1e28fe0a SF |
2366 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + |
2367 | majpf_args_nr + minpf_args_nr + argc; | |
5e2485b1 DA |
2368 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
2369 | ||
2370 | if (rec_argv == NULL) | |
2371 | return -ENOMEM; | |
2372 | ||
1e28fe0a | 2373 | j = 0; |
5e2485b1 | 2374 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
2375 | rec_argv[j++] = record_args[i]; |
2376 | ||
e281a960 SF |
2377 | if (trace->trace_syscalls) { |
2378 | for (i = 0; i < sc_args_nr; i++) | |
2379 | rec_argv[j++] = sc_args[i]; | |
2380 | ||
2381 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
2382 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
2383 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
2384 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
2385 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
2386 | else { | |
2387 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
c896f85a | 2388 | free(rec_argv); |
e281a960 SF |
2389 | return -1; |
2390 | } | |
9aca7f17 | 2391 | } |
9aca7f17 | 2392 | |
1e28fe0a SF |
2393 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
2394 | for (i = 0; i < majpf_args_nr; i++) | |
2395 | rec_argv[j++] = majpf_args[i]; | |
2396 | ||
2397 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
2398 | for (i = 0; i < minpf_args_nr; i++) | |
2399 | rec_argv[j++] = minpf_args[i]; | |
2400 | ||
2401 | for (i = 0; i < (unsigned int)argc; i++) | |
2402 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 2403 | |
b0ad8ea6 | 2404 | return cmd_record(j, rec_argv); |
5e2485b1 DA |
2405 | } |
2406 | ||
bf2575c1 DA |
2407 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
2408 | ||
08c98776 | 2409 | static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) |
c522739d | 2410 | { |
ef503831 | 2411 | struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); |
8dd2a131 JO |
2412 | |
2413 | if (IS_ERR(evsel)) | |
08c98776 | 2414 | return false; |
c522739d ACM |
2415 | |
2416 | if (perf_evsel__field(evsel, "pathname") == NULL) { | |
2417 | perf_evsel__delete(evsel); | |
08c98776 | 2418 | return false; |
c522739d ACM |
2419 | } |
2420 | ||
744a9719 | 2421 | evsel->handler = trace__vfs_getname; |
c522739d | 2422 | perf_evlist__add(evlist, evsel); |
08c98776 | 2423 | return true; |
c522739d ACM |
2424 | } |
2425 | ||
0ae537cb | 2426 | static struct perf_evsel *perf_evsel__new_pgfault(u64 config) |
598d02c5 SF |
2427 | { |
2428 | struct perf_evsel *evsel; | |
2429 | struct perf_event_attr attr = { | |
2430 | .type = PERF_TYPE_SOFTWARE, | |
2431 | .mmap_data = 1, | |
598d02c5 SF |
2432 | }; |
2433 | ||
2434 | attr.config = config; | |
0524798c | 2435 | attr.sample_period = 1; |
598d02c5 SF |
2436 | |
2437 | event_attr_init(&attr); | |
2438 | ||
2439 | evsel = perf_evsel__new(&attr); | |
0ae537cb ACM |
2440 | if (evsel) |
2441 | evsel->handler = trace__pgfault; | |
598d02c5 | 2442 | |
0ae537cb | 2443 | return evsel; |
598d02c5 SF |
2444 | } |
2445 | ||
ddbb1b13 ACM |
2446 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
2447 | { | |
2448 | const u32 type = event->header.type; | |
2449 | struct perf_evsel *evsel; | |
2450 | ||
ddbb1b13 ACM |
2451 | if (type != PERF_RECORD_SAMPLE) { |
2452 | trace__process_event(trace, trace->host, event, sample); | |
2453 | return; | |
2454 | } | |
2455 | ||
2456 | evsel = perf_evlist__id2evsel(trace->evlist, sample->id); | |
2457 | if (evsel == NULL) { | |
2458 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
2459 | return; | |
2460 | } | |
2461 | ||
e6001980 ACM |
2462 | trace__set_base_time(trace, evsel, sample); |
2463 | ||
ddbb1b13 ACM |
2464 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT && |
2465 | sample->raw_data == NULL) { | |
2466 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
2467 | perf_evsel__name(evsel), sample->tid, | |
2468 | sample->cpu, sample->raw_size); | |
2469 | } else { | |
2470 | tracepoint_handler handler = evsel->handler; | |
2471 | handler(trace, evsel, event, sample); | |
2472 | } | |
5067a8cd ACM |
2473 | |
2474 | if (trace->nr_events_printed >= trace->max_events && trace->max_events != ULONG_MAX) | |
2475 | interrupted = true; | |
ddbb1b13 ACM |
2476 | } |
2477 | ||
c27366f0 ACM |
2478 | static int trace__add_syscall_newtp(struct trace *trace) |
2479 | { | |
2480 | int ret = -1; | |
2481 | struct perf_evlist *evlist = trace->evlist; | |
2482 | struct perf_evsel *sys_enter, *sys_exit; | |
2483 | ||
63f11c80 | 2484 | sys_enter = perf_evsel__raw_syscall_newtp("sys_enter", trace__sys_enter); |
c27366f0 ACM |
2485 | if (sys_enter == NULL) |
2486 | goto out; | |
2487 | ||
2488 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
2489 | goto out_delete_sys_enter; | |
2490 | ||
63f11c80 | 2491 | sys_exit = perf_evsel__raw_syscall_newtp("sys_exit", trace__sys_exit); |
c27366f0 ACM |
2492 | if (sys_exit == NULL) |
2493 | goto out_delete_sys_enter; | |
2494 | ||
2495 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
2496 | goto out_delete_sys_exit; | |
2497 | ||
08e26396 ACM |
2498 | perf_evsel__config_callchain(sys_enter, &trace->opts, &callchain_param); |
2499 | perf_evsel__config_callchain(sys_exit, &trace->opts, &callchain_param); | |
2500 | ||
c27366f0 ACM |
2501 | perf_evlist__add(evlist, sys_enter); |
2502 | perf_evlist__add(evlist, sys_exit); | |
2503 | ||
2ddd5c04 | 2504 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
2505 | /* |
2506 | * We're interested only in the user space callchain | |
2507 | * leading to the syscall, allow overriding that for | |
2508 | * debugging reasons using --kernel_syscall_callchains | |
2509 | */ | |
2510 | sys_exit->attr.exclude_callchain_kernel = 1; | |
2511 | } | |
2512 | ||
8b3ce757 ACM |
2513 | trace->syscalls.events.sys_enter = sys_enter; |
2514 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
2515 | |
2516 | ret = 0; | |
2517 | out: | |
2518 | return ret; | |
2519 | ||
2520 | out_delete_sys_exit: | |
2521 | perf_evsel__delete_priv(sys_exit); | |
2522 | out_delete_sys_enter: | |
2523 | perf_evsel__delete_priv(sys_enter); | |
2524 | goto out; | |
2525 | } | |
2526 | ||
19867b61 ACM |
2527 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
2528 | { | |
2529 | int err = -1; | |
b15d0a4c | 2530 | struct perf_evsel *sys_exit; |
19867b61 ACM |
2531 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, |
2532 | trace->ev_qualifier_ids.nr, | |
2533 | trace->ev_qualifier_ids.entries); | |
2534 | ||
2535 | if (filter == NULL) | |
2536 | goto out_enomem; | |
2537 | ||
3541c034 MP |
2538 | if (!perf_evsel__append_tp_filter(trace->syscalls.events.sys_enter, |
2539 | filter)) { | |
b15d0a4c | 2540 | sys_exit = trace->syscalls.events.sys_exit; |
3541c034 | 2541 | err = perf_evsel__append_tp_filter(sys_exit, filter); |
b15d0a4c | 2542 | } |
19867b61 ACM |
2543 | |
2544 | free(filter); | |
2545 | out: | |
2546 | return err; | |
2547 | out_enomem: | |
2548 | errno = ENOMEM; | |
2549 | goto out; | |
2550 | } | |
c27366f0 | 2551 | |
dd1a5037 ACM |
2552 | static int trace__set_filter_loop_pids(struct trace *trace) |
2553 | { | |
082ab9a1 | 2554 | unsigned int nr = 1; |
dd1a5037 ACM |
2555 | pid_t pids[32] = { |
2556 | getpid(), | |
2557 | }; | |
082ab9a1 ACM |
2558 | struct thread *thread = machine__find_thread(trace->host, pids[0], pids[0]); |
2559 | ||
2560 | while (thread && nr < ARRAY_SIZE(pids)) { | |
2561 | struct thread *parent = machine__find_thread(trace->host, thread->ppid, thread->ppid); | |
2562 | ||
2563 | if (parent == NULL) | |
2564 | break; | |
2565 | ||
2566 | if (!strcmp(thread__comm_str(parent), "sshd")) { | |
2567 | pids[nr++] = parent->tid; | |
2568 | break; | |
2569 | } | |
2570 | thread = parent; | |
2571 | } | |
dd1a5037 ACM |
2572 | |
2573 | return perf_evlist__set_filter_pids(trace->evlist, nr, pids); | |
2574 | } | |
2575 | ||
f15eb531 | 2576 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 2577 | { |
14a052df | 2578 | struct perf_evlist *evlist = trace->evlist; |
0ae537cb | 2579 | struct perf_evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
2580 | int err = -1, i; |
2581 | unsigned long before; | |
f15eb531 | 2582 | const bool forks = argc > 0; |
46fb3c21 | 2583 | bool draining = false; |
514f1c67 | 2584 | |
75b757ca ACM |
2585 | trace->live = true; |
2586 | ||
c27366f0 | 2587 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) |
801c67b0 | 2588 | goto out_error_raw_syscalls; |
514f1c67 | 2589 | |
e281a960 | 2590 | if (trace->trace_syscalls) |
08c98776 | 2591 | trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); |
c522739d | 2592 | |
0ae537cb ACM |
2593 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
2594 | pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); | |
2595 | if (pgfault_maj == NULL) | |
2596 | goto out_error_mem; | |
08e26396 | 2597 | perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); |
0ae537cb | 2598 | perf_evlist__add(evlist, pgfault_maj); |
e2726d99 | 2599 | } |
598d02c5 | 2600 | |
0ae537cb ACM |
2601 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
2602 | pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); | |
2603 | if (pgfault_min == NULL) | |
2604 | goto out_error_mem; | |
08e26396 | 2605 | perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); |
0ae537cb ACM |
2606 | perf_evlist__add(evlist, pgfault_min); |
2607 | } | |
598d02c5 | 2608 | |
1302d88e | 2609 | if (trace->sched && |
2cc990ba ACM |
2610 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", |
2611 | trace__sched_stat_runtime)) | |
2612 | goto out_error_sched_stat_runtime; | |
1302d88e | 2613 | |
9ea42ba4 ACM |
2614 | /* |
2615 | * If a global cgroup was set, apply it to all the events without an | |
2616 | * explicit cgroup. I.e.: | |
2617 | * | |
2618 | * trace -G A -e sched:*switch | |
2619 | * | |
2620 | * Will set all raw_syscalls:sys_{enter,exit}, pgfault, vfs_getname, etc | |
2621 | * _and_ sched:sched_switch to the 'A' cgroup, while: | |
2622 | * | |
2623 | * trace -e sched:*switch -G A | |
2624 | * | |
2625 | * will only set the sched:sched_switch event to the 'A' cgroup, all the | |
2626 | * other events (raw_syscalls:sys_{enter,exit}, etc are left "without" | |
2627 | * a cgroup (on the root cgroup, sys wide, etc). | |
2628 | * | |
2629 | * Multiple cgroups: | |
2630 | * | |
2631 | * trace -G A -e sched:*switch -G B | |
2632 | * | |
2633 | * the syscall ones go to the 'A' cgroup, the sched:sched_switch goes | |
2634 | * to the 'B' cgroup. | |
2635 | * | |
2636 | * evlist__set_default_cgroup() grabs a reference of the passed cgroup | |
2637 | * only for the evsels still without a cgroup, i.e. evsel->cgroup == NULL. | |
2638 | */ | |
2639 | if (trace->cgroup) | |
2640 | evlist__set_default_cgroup(trace->evlist, trace->cgroup); | |
2641 | ||
514f1c67 ACM |
2642 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
2643 | if (err < 0) { | |
c24ff998 | 2644 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
2645 | goto out_delete_evlist; |
2646 | } | |
2647 | ||
752fde44 ACM |
2648 | err = trace__symbols_init(trace, evlist); |
2649 | if (err < 0) { | |
c24ff998 | 2650 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 2651 | goto out_delete_evlist; |
752fde44 ACM |
2652 | } |
2653 | ||
75d50117 | 2654 | perf_evlist__config(evlist, &trace->opts, &callchain_param); |
fde54b78 | 2655 | |
f15eb531 NK |
2656 | signal(SIGCHLD, sig_handler); |
2657 | signal(SIGINT, sig_handler); | |
2658 | ||
2659 | if (forks) { | |
6ef73ec4 | 2660 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
735f7e0b | 2661 | argv, false, NULL); |
f15eb531 | 2662 | if (err < 0) { |
c24ff998 | 2663 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 2664 | goto out_delete_evlist; |
f15eb531 NK |
2665 | } |
2666 | } | |
2667 | ||
514f1c67 | 2668 | err = perf_evlist__open(evlist); |
a8f23d8f ACM |
2669 | if (err < 0) |
2670 | goto out_error_open; | |
514f1c67 | 2671 | |
ba504235 WN |
2672 | err = bpf__apply_obj_config(); |
2673 | if (err) { | |
2674 | char errbuf[BUFSIZ]; | |
2675 | ||
2676 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
2677 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
2678 | errbuf); | |
2679 | goto out_error_open; | |
2680 | } | |
2681 | ||
241b057c ACM |
2682 | /* |
2683 | * Better not use !target__has_task() here because we need to cover the | |
2684 | * case where no threads were specified in the command line, but a | |
2685 | * workload was, and in that case we will fill in the thread_map when | |
2686 | * we fork the workload in perf_evlist__prepare_workload. | |
2687 | */ | |
f078c385 ACM |
2688 | if (trace->filter_pids.nr > 0) |
2689 | err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries); | |
e13798c7 | 2690 | else if (thread_map__pid(evlist->threads, 0) == -1) |
dd1a5037 | 2691 | err = trace__set_filter_loop_pids(trace); |
f078c385 | 2692 | |
94ad89bc ACM |
2693 | if (err < 0) |
2694 | goto out_error_mem; | |
2695 | ||
19867b61 ACM |
2696 | if (trace->ev_qualifier_ids.nr > 0) { |
2697 | err = trace__set_ev_qualifier_filter(trace); | |
2698 | if (err < 0) | |
2699 | goto out_errno; | |
19867b61 | 2700 | |
2e5e5f87 ACM |
2701 | pr_debug("event qualifier tracepoint filter: %s\n", |
2702 | trace->syscalls.events.sys_exit->filter); | |
2703 | } | |
19867b61 | 2704 | |
94ad89bc ACM |
2705 | err = perf_evlist__apply_filters(evlist, &evsel); |
2706 | if (err < 0) | |
2707 | goto out_error_apply_filters; | |
241b057c | 2708 | |
f74b9d3a | 2709 | err = perf_evlist__mmap(evlist, trace->opts.mmap_pages); |
e09b18d4 ACM |
2710 | if (err < 0) |
2711 | goto out_error_mmap; | |
514f1c67 | 2712 | |
e36b7821 | 2713 | if (!target__none(&trace->opts.target) && !trace->opts.initial_delay) |
cb24d01d ACM |
2714 | perf_evlist__enable(evlist); |
2715 | ||
f15eb531 NK |
2716 | if (forks) |
2717 | perf_evlist__start_workload(evlist); | |
2718 | ||
e36b7821 AB |
2719 | if (trace->opts.initial_delay) { |
2720 | usleep(trace->opts.initial_delay * 1000); | |
2721 | perf_evlist__enable(evlist); | |
2722 | } | |
2723 | ||
e13798c7 | 2724 | trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 || |
42052bea ACM |
2725 | evlist->threads->nr > 1 || |
2726 | perf_evlist__first(evlist)->attr.inherit; | |
bd3dda9a ACM |
2727 | |
2728 | /* | |
2729 | * Now that we already used evsel->attr to ask the kernel to setup the | |
2730 | * events, lets reuse evsel->attr.sample_max_stack as the limit in | |
2731 | * trace__resolve_callchain(), allowing per-event max-stack settings | |
2732 | * to override an explicitely set --max-stack global setting. | |
2733 | */ | |
2734 | evlist__for_each_entry(evlist, evsel) { | |
27de9b2b | 2735 | if (evsel__has_callchain(evsel) && |
bd3dda9a ACM |
2736 | evsel->attr.sample_max_stack == 0) |
2737 | evsel->attr.sample_max_stack = trace->max_stack; | |
2738 | } | |
514f1c67 | 2739 | again: |
efd5745e | 2740 | before = trace->nr_events; |
514f1c67 ACM |
2741 | |
2742 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
2743 | union perf_event *event; | |
d7f55c62 | 2744 | struct perf_mmap *md; |
514f1c67 | 2745 | |
d7f55c62 | 2746 | md = &evlist->mmap[i]; |
b9bae2c8 | 2747 | if (perf_mmap__read_init(md) < 0) |
d7f55c62 KL |
2748 | continue; |
2749 | ||
0019dc87 | 2750 | while ((event = perf_mmap__read_event(md)) != NULL) { |
514f1c67 | 2751 | struct perf_sample sample; |
514f1c67 | 2752 | |
efd5745e | 2753 | ++trace->nr_events; |
514f1c67 | 2754 | |
514f1c67 ACM |
2755 | err = perf_evlist__parse_sample(evlist, event, &sample); |
2756 | if (err) { | |
c24ff998 | 2757 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); |
8e50d384 | 2758 | goto next_event; |
514f1c67 ACM |
2759 | } |
2760 | ||
ddbb1b13 | 2761 | trace__handle_event(trace, event, &sample); |
8e50d384 | 2762 | next_event: |
d6ace3df | 2763 | perf_mmap__consume(md); |
20c5f10e | 2764 | |
ba209f85 ACM |
2765 | if (interrupted) |
2766 | goto out_disable; | |
02ac5421 ACM |
2767 | |
2768 | if (done && !draining) { | |
2769 | perf_evlist__disable(evlist); | |
2770 | draining = true; | |
2771 | } | |
514f1c67 | 2772 | } |
d7f55c62 | 2773 | perf_mmap__read_done(md); |
514f1c67 ACM |
2774 | } |
2775 | ||
efd5745e | 2776 | if (trace->nr_events == before) { |
ba209f85 | 2777 | int timeout = done ? 100 : -1; |
f15eb531 | 2778 | |
46fb3c21 | 2779 | if (!draining && perf_evlist__poll(evlist, timeout) > 0) { |
a9c5e6c1 | 2780 | if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP | POLLNVAL) == 0) |
46fb3c21 ACM |
2781 | draining = true; |
2782 | ||
ba209f85 | 2783 | goto again; |
46fb3c21 | 2784 | } |
ba209f85 ACM |
2785 | } else { |
2786 | goto again; | |
f15eb531 NK |
2787 | } |
2788 | ||
ba209f85 | 2789 | out_disable: |
f3b623b8 ACM |
2790 | thread__zput(trace->current); |
2791 | ||
ba209f85 | 2792 | perf_evlist__disable(evlist); |
514f1c67 | 2793 | |
c522739d ACM |
2794 | if (!err) { |
2795 | if (trace->summary) | |
2796 | trace__fprintf_thread_summary(trace, trace->output); | |
2797 | ||
2798 | if (trace->show_tool_stats) { | |
2799 | fprintf(trace->output, "Stats:\n " | |
2800 | " vfs_getname : %" PRIu64 "\n" | |
2801 | " proc_getname: %" PRIu64 "\n", | |
2802 | trace->stats.vfs_getname, | |
2803 | trace->stats.proc_getname); | |
2804 | } | |
2805 | } | |
bf2575c1 | 2806 | |
514f1c67 | 2807 | out_delete_evlist: |
33974a41 AV |
2808 | trace__symbols__exit(trace); |
2809 | ||
514f1c67 | 2810 | perf_evlist__delete(evlist); |
9ea42ba4 | 2811 | cgroup__put(trace->cgroup); |
14a052df | 2812 | trace->evlist = NULL; |
75b757ca | 2813 | trace->live = false; |
514f1c67 | 2814 | return err; |
6ef068cb ACM |
2815 | { |
2816 | char errbuf[BUFSIZ]; | |
a8f23d8f | 2817 | |
2cc990ba | 2818 | out_error_sched_stat_runtime: |
988bdb31 | 2819 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
2820 | goto out_error; |
2821 | ||
801c67b0 | 2822 | out_error_raw_syscalls: |
988bdb31 | 2823 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
2824 | goto out_error; |
2825 | ||
e09b18d4 ACM |
2826 | out_error_mmap: |
2827 | perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); | |
2828 | goto out_error; | |
2829 | ||
a8f23d8f ACM |
2830 | out_error_open: |
2831 | perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); | |
2832 | ||
2833 | out_error: | |
6ef068cb | 2834 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 2835 | goto out_delete_evlist; |
94ad89bc ACM |
2836 | |
2837 | out_error_apply_filters: | |
2838 | fprintf(trace->output, | |
2839 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
2840 | evsel->filter, perf_evsel__name(evsel), errno, | |
c8b5f2c9 | 2841 | str_error_r(errno, errbuf, sizeof(errbuf))); |
94ad89bc | 2842 | goto out_delete_evlist; |
514f1c67 | 2843 | } |
5ed08dae ACM |
2844 | out_error_mem: |
2845 | fprintf(trace->output, "Not enough memory to run!\n"); | |
2846 | goto out_delete_evlist; | |
19867b61 ACM |
2847 | |
2848 | out_errno: | |
2849 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
2850 | goto out_delete_evlist; | |
a8f23d8f | 2851 | } |
514f1c67 | 2852 | |
6810fc91 DA |
2853 | static int trace__replay(struct trace *trace) |
2854 | { | |
2855 | const struct perf_evsel_str_handler handlers[] = { | |
c522739d | 2856 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 2857 | }; |
8ceb41d7 | 2858 | struct perf_data data = { |
eae8ad80 JO |
2859 | .file = { |
2860 | .path = input_name, | |
2861 | }, | |
2862 | .mode = PERF_DATA_MODE_READ, | |
2863 | .force = trace->force, | |
f5fc1412 | 2864 | }; |
6810fc91 | 2865 | struct perf_session *session; |
003824e8 | 2866 | struct perf_evsel *evsel; |
6810fc91 DA |
2867 | int err = -1; |
2868 | ||
2869 | trace->tool.sample = trace__process_sample; | |
2870 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 2871 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
2872 | trace->tool.comm = perf_event__process_comm; |
2873 | trace->tool.exit = perf_event__process_exit; | |
2874 | trace->tool.fork = perf_event__process_fork; | |
2875 | trace->tool.attr = perf_event__process_attr; | |
f3b3614a | 2876 | trace->tool.tracing_data = perf_event__process_tracing_data; |
6810fc91 | 2877 | trace->tool.build_id = perf_event__process_build_id; |
f3b3614a | 2878 | trace->tool.namespaces = perf_event__process_namespaces; |
6810fc91 | 2879 | |
0a8cb85c | 2880 | trace->tool.ordered_events = true; |
6810fc91 DA |
2881 | trace->tool.ordering_requires_timestamps = true; |
2882 | ||
2883 | /* add tid to output */ | |
2884 | trace->multiple_threads = true; | |
2885 | ||
8ceb41d7 | 2886 | session = perf_session__new(&data, false, &trace->tool); |
6810fc91 | 2887 | if (session == NULL) |
52e02834 | 2888 | return -1; |
6810fc91 | 2889 | |
aa07df6e DA |
2890 | if (trace->opts.target.pid) |
2891 | symbol_conf.pid_list_str = strdup(trace->opts.target.pid); | |
2892 | ||
2893 | if (trace->opts.target.tid) | |
2894 | symbol_conf.tid_list_str = strdup(trace->opts.target.tid); | |
2895 | ||
0a7e6d1b | 2896 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
2897 | goto out; |
2898 | ||
8fb598e5 DA |
2899 | trace->host = &session->machines.host; |
2900 | ||
6810fc91 DA |
2901 | err = perf_session__set_tracepoints_handlers(session, handlers); |
2902 | if (err) | |
2903 | goto out; | |
2904 | ||
003824e8 NK |
2905 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, |
2906 | "raw_syscalls:sys_enter"); | |
9aca7f17 DA |
2907 | /* older kernels have syscalls tp versus raw_syscalls */ |
2908 | if (evsel == NULL) | |
2909 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2910 | "syscalls:sys_enter"); | |
003824e8 | 2911 | |
e281a960 | 2912 | if (evsel && |
63f11c80 | 2913 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_enter) < 0 || |
e281a960 | 2914 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { |
003824e8 NK |
2915 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
2916 | goto out; | |
2917 | } | |
2918 | ||
2919 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2920 | "raw_syscalls:sys_exit"); | |
9aca7f17 DA |
2921 | if (evsel == NULL) |
2922 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2923 | "syscalls:sys_exit"); | |
e281a960 | 2924 | if (evsel && |
63f11c80 | 2925 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_exit) < 0 || |
e281a960 | 2926 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { |
003824e8 | 2927 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
2928 | goto out; |
2929 | } | |
2930 | ||
e5cadb93 | 2931 | evlist__for_each_entry(session->evlist, evsel) { |
1e28fe0a SF |
2932 | if (evsel->attr.type == PERF_TYPE_SOFTWARE && |
2933 | (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
2934 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
2935 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
2936 | evsel->handler = trace__pgfault; | |
2937 | } | |
2938 | ||
6810fc91 DA |
2939 | setup_pager(); |
2940 | ||
b7b61cbe | 2941 | err = perf_session__process_events(session); |
6810fc91 DA |
2942 | if (err) |
2943 | pr_err("Failed to process events, error %d", err); | |
2944 | ||
bf2575c1 DA |
2945 | else if (trace->summary) |
2946 | trace__fprintf_thread_summary(trace, trace->output); | |
2947 | ||
6810fc91 DA |
2948 | out: |
2949 | perf_session__delete(session); | |
2950 | ||
2951 | return err; | |
2952 | } | |
2953 | ||
1302d88e ACM |
2954 | static size_t trace__fprintf_threads_header(FILE *fp) |
2955 | { | |
2956 | size_t printed; | |
2957 | ||
99ff7150 | 2958 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
2959 | |
2960 | return printed; | |
2961 | } | |
2962 | ||
b535d523 ACM |
2963 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
2964 | struct stats *stats; | |
2965 | double msecs; | |
2966 | int syscall; | |
2967 | ) | |
2968 | { | |
2969 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
2970 | struct stats *stats = source->priv; | |
2971 | ||
2972 | entry->syscall = source->i; | |
2973 | entry->stats = stats; | |
2974 | entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0; | |
2975 | } | |
2976 | ||
bf2575c1 DA |
2977 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
2978 | struct trace *trace, FILE *fp) | |
2979 | { | |
bf2575c1 DA |
2980 | size_t printed = 0; |
2981 | struct syscall *sc; | |
b535d523 ACM |
2982 | struct rb_node *nd; |
2983 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 2984 | |
b535d523 | 2985 | if (syscall_stats == NULL) |
bf2575c1 DA |
2986 | return 0; |
2987 | ||
2988 | printed += fprintf(fp, "\n"); | |
2989 | ||
834fd46d MW |
2990 | printed += fprintf(fp, " syscall calls total min avg max stddev\n"); |
2991 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
2992 | printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n"); | |
99ff7150 | 2993 | |
98a91837 | 2994 | resort_rb__for_each_entry(nd, syscall_stats) { |
b535d523 | 2995 | struct stats *stats = syscall_stats_entry->stats; |
bf2575c1 DA |
2996 | if (stats) { |
2997 | double min = (double)(stats->min) / NSEC_PER_MSEC; | |
2998 | double max = (double)(stats->max) / NSEC_PER_MSEC; | |
2999 | double avg = avg_stats(stats); | |
3000 | double pct; | |
3001 | u64 n = (u64) stats->n; | |
3002 | ||
3003 | pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; | |
3004 | avg /= NSEC_PER_MSEC; | |
3005 | ||
b535d523 | 3006 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 3007 | printed += fprintf(fp, " %-15s", sc->name); |
834fd46d | 3008 | printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f", |
b535d523 | 3009 | n, syscall_stats_entry->msecs, min, avg); |
27a778b5 | 3010 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
bf2575c1 | 3011 | } |
bf2575c1 DA |
3012 | } |
3013 | ||
b535d523 | 3014 | resort_rb__delete(syscall_stats); |
bf2575c1 | 3015 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
3016 | |
3017 | return printed; | |
3018 | } | |
3019 | ||
96c14451 | 3020 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 3021 | { |
96c14451 | 3022 | size_t printed = 0; |
89dceb22 | 3023 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
3024 | double ratio; |
3025 | ||
3026 | if (ttrace == NULL) | |
3027 | return 0; | |
3028 | ||
3029 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
3030 | ||
15e65c69 | 3031 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); |
99ff7150 | 3032 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 3033 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
3034 | if (ttrace->pfmaj) |
3035 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
3036 | if (ttrace->pfmin) | |
3037 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
3038 | if (trace->sched) |
3039 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
3040 | else if (fputc('\n', fp) != EOF) | |
3041 | ++printed; | |
3042 | ||
bf2575c1 | 3043 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 3044 | |
96c14451 ACM |
3045 | return printed; |
3046 | } | |
896cbb56 | 3047 | |
96c14451 ACM |
3048 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
3049 | { | |
3050 | return ttrace ? ttrace->nr_events : 0; | |
3051 | } | |
3052 | ||
3053 | DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)), | |
3054 | struct thread *thread; | |
3055 | ) | |
3056 | { | |
3057 | entry->thread = rb_entry(nd, struct thread, rb_node); | |
896cbb56 DA |
3058 | } |
3059 | ||
1302d88e ACM |
3060 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
3061 | { | |
96c14451 ACM |
3062 | size_t printed = trace__fprintf_threads_header(fp); |
3063 | struct rb_node *nd; | |
91e467bc | 3064 | int i; |
1302d88e | 3065 | |
91e467bc KL |
3066 | for (i = 0; i < THREADS__TABLE_SIZE; i++) { |
3067 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i); | |
96c14451 | 3068 | |
91e467bc KL |
3069 | if (threads == NULL) { |
3070 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
3071 | return 0; | |
3072 | } | |
896cbb56 | 3073 | |
91e467bc KL |
3074 | resort_rb__for_each_entry(nd, threads) |
3075 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); | |
96c14451 | 3076 | |
91e467bc KL |
3077 | resort_rb__delete(threads); |
3078 | } | |
96c14451 | 3079 | return printed; |
1302d88e ACM |
3080 | } |
3081 | ||
ae9ed035 ACM |
3082 | static int trace__set_duration(const struct option *opt, const char *str, |
3083 | int unset __maybe_unused) | |
3084 | { | |
3085 | struct trace *trace = opt->value; | |
3086 | ||
3087 | trace->duration_filter = atof(str); | |
3088 | return 0; | |
3089 | } | |
3090 | ||
f078c385 ACM |
3091 | static int trace__set_filter_pids(const struct option *opt, const char *str, |
3092 | int unset __maybe_unused) | |
3093 | { | |
3094 | int ret = -1; | |
3095 | size_t i; | |
3096 | struct trace *trace = opt->value; | |
3097 | /* | |
3098 | * FIXME: introduce a intarray class, plain parse csv and create a | |
3099 | * { int nr, int entries[] } struct... | |
3100 | */ | |
3101 | struct intlist *list = intlist__new(str); | |
3102 | ||
3103 | if (list == NULL) | |
3104 | return -1; | |
3105 | ||
3106 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
3107 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
3108 | ||
3109 | if (trace->filter_pids.entries == NULL) | |
3110 | goto out; | |
3111 | ||
3112 | trace->filter_pids.entries[0] = getpid(); | |
3113 | ||
3114 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
3115 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
3116 | ||
3117 | intlist__delete(list); | |
3118 | ret = 0; | |
3119 | out: | |
3120 | return ret; | |
3121 | } | |
3122 | ||
c24ff998 ACM |
3123 | static int trace__open_output(struct trace *trace, const char *filename) |
3124 | { | |
3125 | struct stat st; | |
3126 | ||
3127 | if (!stat(filename, &st) && st.st_size) { | |
3128 | char oldname[PATH_MAX]; | |
3129 | ||
3130 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
3131 | unlink(oldname); | |
3132 | rename(filename, oldname); | |
3133 | } | |
3134 | ||
3135 | trace->output = fopen(filename, "w"); | |
3136 | ||
3137 | return trace->output == NULL ? -errno : 0; | |
3138 | } | |
3139 | ||
598d02c5 SF |
3140 | static int parse_pagefaults(const struct option *opt, const char *str, |
3141 | int unset __maybe_unused) | |
3142 | { | |
3143 | int *trace_pgfaults = opt->value; | |
3144 | ||
3145 | if (strcmp(str, "all") == 0) | |
3146 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
3147 | else if (strcmp(str, "maj") == 0) | |
3148 | *trace_pgfaults |= TRACE_PFMAJ; | |
3149 | else if (strcmp(str, "min") == 0) | |
3150 | *trace_pgfaults |= TRACE_PFMIN; | |
3151 | else | |
3152 | return -1; | |
3153 | ||
3154 | return 0; | |
3155 | } | |
3156 | ||
14a052df ACM |
3157 | static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) |
3158 | { | |
3159 | struct perf_evsel *evsel; | |
3160 | ||
e5cadb93 | 3161 | evlist__for_each_entry(evlist, evsel) |
14a052df ACM |
3162 | evsel->handler = handler; |
3163 | } | |
3164 | ||
d32855fa ACM |
3165 | static int evlist__set_syscall_tp_fields(struct perf_evlist *evlist) |
3166 | { | |
3167 | struct perf_evsel *evsel; | |
3168 | ||
3169 | evlist__for_each_entry(evlist, evsel) { | |
3170 | if (evsel->priv || !evsel->tp_format) | |
3171 | continue; | |
3172 | ||
3173 | if (strcmp(evsel->tp_format->system, "syscalls")) | |
3174 | continue; | |
3175 | ||
3176 | if (perf_evsel__init_syscall_tp(evsel)) | |
3177 | return -1; | |
3178 | ||
3179 | if (!strncmp(evsel->tp_format->name, "sys_enter_", 10)) { | |
3180 | struct syscall_tp *sc = evsel->priv; | |
3181 | ||
3182 | if (__tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64))) | |
3183 | return -1; | |
3184 | } else if (!strncmp(evsel->tp_format->name, "sys_exit_", 9)) { | |
3185 | struct syscall_tp *sc = evsel->priv; | |
3186 | ||
3187 | if (__tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap)) | |
3188 | return -1; | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | return 0; | |
3193 | } | |
3194 | ||
017037ff ACM |
3195 | /* |
3196 | * XXX: Hackish, just splitting the combined -e+--event (syscalls | |
3197 | * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use | |
3198 | * existing facilities unchanged (trace->ev_qualifier + parse_options()). | |
3199 | * | |
3200 | * It'd be better to introduce a parse_options() variant that would return a | |
3201 | * list with the terms it didn't match to an event... | |
3202 | */ | |
3203 | static int trace__parse_events_option(const struct option *opt, const char *str, | |
3204 | int unset __maybe_unused) | |
3205 | { | |
3206 | struct trace *trace = (struct trace *)opt->value; | |
3207 | const char *s = str; | |
3208 | char *sep = NULL, *lists[2] = { NULL, NULL, }; | |
27702bcf | 3209 | int len = strlen(str) + 1, err = -1, list, idx; |
017037ff ACM |
3210 | char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); |
3211 | char group_name[PATH_MAX]; | |
f932184e | 3212 | struct syscall_fmt *fmt; |
017037ff ACM |
3213 | |
3214 | if (strace_groups_dir == NULL) | |
3215 | return -1; | |
3216 | ||
3217 | if (*s == '!') { | |
3218 | ++s; | |
3219 | trace->not_ev_qualifier = true; | |
3220 | } | |
3221 | ||
3222 | while (1) { | |
3223 | if ((sep = strchr(s, ',')) != NULL) | |
3224 | *sep = '\0'; | |
3225 | ||
3226 | list = 0; | |
27702bcf ACM |
3227 | if (syscalltbl__id(trace->sctbl, s) >= 0 || |
3228 | syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) { | |
017037ff | 3229 | list = 1; |
f932184e ACM |
3230 | goto do_concat; |
3231 | } | |
3232 | ||
3233 | fmt = syscall_fmt__find_by_alias(s); | |
3234 | if (fmt != NULL) { | |
3235 | list = 1; | |
3236 | s = fmt->name; | |
017037ff ACM |
3237 | } else { |
3238 | path__join(group_name, sizeof(group_name), strace_groups_dir, s); | |
3239 | if (access(group_name, R_OK) == 0) | |
3240 | list = 1; | |
3241 | } | |
f932184e | 3242 | do_concat: |
017037ff ACM |
3243 | if (lists[list]) { |
3244 | sprintf(lists[list] + strlen(lists[list]), ",%s", s); | |
3245 | } else { | |
3246 | lists[list] = malloc(len); | |
3247 | if (lists[list] == NULL) | |
3248 | goto out; | |
3249 | strcpy(lists[list], s); | |
3250 | } | |
3251 | ||
3252 | if (!sep) | |
3253 | break; | |
3254 | ||
3255 | *sep = ','; | |
3256 | s = sep + 1; | |
3257 | } | |
3258 | ||
3259 | if (lists[1] != NULL) { | |
3260 | struct strlist_config slist_config = { | |
3261 | .dirname = strace_groups_dir, | |
3262 | }; | |
3263 | ||
3264 | trace->ev_qualifier = strlist__new(lists[1], &slist_config); | |
3265 | if (trace->ev_qualifier == NULL) { | |
3266 | fputs("Not enough memory to parse event qualifier", trace->output); | |
3267 | goto out; | |
3268 | } | |
3269 | ||
3270 | if (trace__validate_ev_qualifier(trace)) | |
3271 | goto out; | |
b912885a | 3272 | trace->trace_syscalls = true; |
017037ff ACM |
3273 | } |
3274 | ||
3275 | err = 0; | |
3276 | ||
3277 | if (lists[0]) { | |
3278 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", | |
3279 | "event selector. use 'perf list' to list available events", | |
3280 | parse_events_option); | |
3281 | err = parse_events_option(&o, lists[0], 0); | |
3282 | } | |
3283 | out: | |
3284 | if (sep) | |
3285 | *sep = ','; | |
3286 | ||
3287 | return err; | |
3288 | } | |
3289 | ||
9ea42ba4 ACM |
3290 | static int trace__parse_cgroups(const struct option *opt, const char *str, int unset) |
3291 | { | |
3292 | struct trace *trace = opt->value; | |
3293 | ||
3294 | if (!list_empty(&trace->evlist->entries)) | |
3295 | return parse_cgroups(opt, str, unset); | |
3296 | ||
3297 | trace->cgroup = evlist__findnew_cgroup(trace->evlist, str); | |
3298 | ||
3299 | return 0; | |
3300 | } | |
3301 | ||
b0ad8ea6 | 3302 | int cmd_trace(int argc, const char **argv) |
514f1c67 | 3303 | { |
6fdd9cb7 | 3304 | const char *trace_usage[] = { |
f15eb531 NK |
3305 | "perf trace [<options>] [<command>]", |
3306 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
3307 | "perf trace record [<options>] [<command>]", |
3308 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
3309 | NULL |
3310 | }; | |
3311 | struct trace trace = { | |
514f1c67 ACM |
3312 | .syscalls = { |
3313 | . max = -1, | |
3314 | }, | |
3315 | .opts = { | |
3316 | .target = { | |
3317 | .uid = UINT_MAX, | |
3318 | .uses_mmap = true, | |
3319 | }, | |
3320 | .user_freq = UINT_MAX, | |
3321 | .user_interval = ULLONG_MAX, | |
509051ea | 3322 | .no_buffering = true, |
38d5447d | 3323 | .mmap_pages = UINT_MAX, |
9d9cad76 | 3324 | .proc_map_timeout = 500, |
514f1c67 | 3325 | }, |
007d66a0 | 3326 | .output = stderr, |
50c95cbd | 3327 | .show_comm = true, |
b912885a | 3328 | .trace_syscalls = false, |
44621819 | 3329 | .kernel_syscallchains = false, |
05614993 | 3330 | .max_stack = UINT_MAX, |
5067a8cd | 3331 | .max_events = ULONG_MAX, |
514f1c67 | 3332 | }; |
c24ff998 | 3333 | const char *output_name = NULL; |
514f1c67 | 3334 | const struct option trace_options[] = { |
017037ff ACM |
3335 | OPT_CALLBACK('e', "event", &trace, "event", |
3336 | "event/syscall selector. use 'perf list' to list available events", | |
3337 | trace__parse_events_option), | |
50c95cbd ACM |
3338 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
3339 | "show the thread COMM next to its id"), | |
c522739d | 3340 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
017037ff ACM |
3341 | OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace", |
3342 | trace__parse_events_option), | |
c24ff998 | 3343 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 3344 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
3345 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
3346 | "trace events on existing process id"), | |
ac9be8ee | 3347 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 3348 | "trace events on existing thread id"), |
fa0e4ffe ACM |
3349 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
3350 | "pids to filter (by the kernel)", trace__set_filter_pids), | |
ac9be8ee | 3351 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 3352 | "system-wide collection from all CPUs"), |
ac9be8ee | 3353 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 3354 | "list of cpus to monitor"), |
6810fc91 | 3355 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 3356 | "child tasks do not inherit counters"), |
994a1f78 JO |
3357 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
3358 | "number of mmap data pages", | |
3359 | perf_evlist__parse_mmap_pages), | |
ac9be8ee | 3360 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 3361 | "user to profile"), |
ae9ed035 ACM |
3362 | OPT_CALLBACK(0, "duration", &trace, "float", |
3363 | "show only events with duration > N.M ms", | |
3364 | trace__set_duration), | |
1302d88e | 3365 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 3366 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
3367 | OPT_BOOLEAN('T', "time", &trace.full_time, |
3368 | "Show full timestamp, not time relative to first start"), | |
0a6545bd ACM |
3369 | OPT_BOOLEAN(0, "failure", &trace.failure_only, |
3370 | "Show only syscalls that failed"), | |
fd2eabaf DA |
3371 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
3372 | "Show only syscall summary with statistics"), | |
3373 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
3374 | "Show all syscalls and summary with statistics"), | |
598d02c5 SF |
3375 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
3376 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 3377 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 3378 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
3379 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
3380 | "record_mode[,record_size]", record_callchain_help, | |
3381 | &record_parse_callchain_opt), | |
44621819 ACM |
3382 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
3383 | "Show the kernel callchains on the syscall exit path"), | |
5067a8cd ACM |
3384 | OPT_ULONG(0, "max-events", &trace.max_events, |
3385 | "Set the maximum number of events to print, exit after that is reached. "), | |
5cf9c84e ACM |
3386 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
3387 | "Set the minimum stack depth when parsing the callchain, " | |
3388 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
3389 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
3390 | "Set the maximum stack depth when parsing the callchain, " | |
3391 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 3392 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
591421e1 ACM |
3393 | OPT_BOOLEAN(0, "print-sample", &trace.print_sample, |
3394 | "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"), | |
9d9cad76 KL |
3395 | OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout, |
3396 | "per thread proc mmap processing timeout in ms"), | |
9ea42ba4 ACM |
3397 | OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only", |
3398 | trace__parse_cgroups), | |
e36b7821 AB |
3399 | OPT_UINTEGER('D', "delay", &trace.opts.initial_delay, |
3400 | "ms to wait before starting measurement after program " | |
3401 | "start"), | |
514f1c67 ACM |
3402 | OPT_END() |
3403 | }; | |
ccd62a89 | 3404 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 3405 | bool mmap_pages_user_set = true; |
78e890ea | 3406 | struct perf_evsel *evsel; |
6fdd9cb7 | 3407 | const char * const trace_subcommands[] = { "record", NULL }; |
78e890ea | 3408 | int err = -1; |
32caf0d1 | 3409 | char bf[BUFSIZ]; |
514f1c67 | 3410 | |
4d08cb80 ACM |
3411 | signal(SIGSEGV, sighandler_dump_stack); |
3412 | signal(SIGFPE, sighandler_dump_stack); | |
3413 | ||
14a052df | 3414 | trace.evlist = perf_evlist__new(); |
fd0db102 | 3415 | trace.sctbl = syscalltbl__new(); |
14a052df | 3416 | |
fd0db102 | 3417 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 3418 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 3419 | err = -ENOMEM; |
14a052df ACM |
3420 | goto out; |
3421 | } | |
3422 | ||
6fdd9cb7 YS |
3423 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
3424 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
fd2eabaf | 3425 | |
9ea42ba4 ACM |
3426 | if ((nr_cgroups || trace.cgroup) && !trace.opts.target.system_wide) { |
3427 | usage_with_options_msg(trace_usage, trace_options, | |
3428 | "cgroup monitoring only available in system-wide mode"); | |
3429 | } | |
3430 | ||
78e890ea ACM |
3431 | evsel = bpf__setup_output_event(trace.evlist, "__augmented_syscalls__"); |
3432 | if (IS_ERR(evsel)) { | |
3433 | bpf__strerror_setup_output_event(trace.evlist, PTR_ERR(evsel), bf, sizeof(bf)); | |
e0b6d2ef ACM |
3434 | pr_err("ERROR: Setup trace syscalls enter failed: %s\n", bf); |
3435 | goto out; | |
3436 | } | |
3437 | ||
b1a9e253 | 3438 | if (evsel) |
d3d1c4bd | 3439 | trace.syscalls.events.augmented = evsel; |
d3d1c4bd | 3440 | |
d7888573 WN |
3441 | err = bpf__setup_stdout(trace.evlist); |
3442 | if (err) { | |
3443 | bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf)); | |
3444 | pr_err("ERROR: Setup BPF stdout failed: %s\n", bf); | |
3445 | goto out; | |
3446 | } | |
3447 | ||
59247e33 ACM |
3448 | err = -1; |
3449 | ||
598d02c5 SF |
3450 | if (trace.trace_pgfaults) { |
3451 | trace.opts.sample_address = true; | |
3452 | trace.opts.sample_time = true; | |
3453 | } | |
3454 | ||
f3e459d1 ACM |
3455 | if (trace.opts.mmap_pages == UINT_MAX) |
3456 | mmap_pages_user_set = false; | |
3457 | ||
05614993 | 3458 | if (trace.max_stack == UINT_MAX) { |
029c75e5 | 3459 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl__max_stack(); |
05614993 ACM |
3460 | max_stack_user_set = false; |
3461 | } | |
3462 | ||
3463 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
75d50117 | 3464 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled) { |
05614993 | 3465 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
75d50117 | 3466 | } |
05614993 ACM |
3467 | #endif |
3468 | ||
2ddd5c04 | 3469 | if (callchain_param.enabled) { |
f3e459d1 ACM |
3470 | if (!mmap_pages_user_set && geteuid() == 0) |
3471 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
3472 | ||
566a0885 | 3473 | symbol_conf.use_callchain = true; |
f3e459d1 | 3474 | } |
566a0885 | 3475 | |
d32855fa | 3476 | if (trace.evlist->nr_entries > 0) { |
14a052df | 3477 | evlist__set_evsel_handler(trace.evlist, trace__event_handler); |
d32855fa ACM |
3478 | if (evlist__set_syscall_tp_fields(trace.evlist)) { |
3479 | perror("failed to set syscalls:* tracepoint fields"); | |
3480 | goto out; | |
3481 | } | |
3482 | } | |
14a052df | 3483 | |
b1a9e253 ACM |
3484 | /* |
3485 | * If we are augmenting syscalls, then combine what we put in the | |
3486 | * __augmented_syscalls__ BPF map with what is in the | |
3487 | * syscalls:sys_exit_FOO tracepoints, i.e. just like we do without BPF, | |
3488 | * combining raw_syscalls:sys_enter with raw_syscalls:sys_exit. | |
3489 | * | |
3490 | * We'll switch to look at two BPF maps, one for sys_enter and the | |
3491 | * other for sys_exit when we start augmenting the sys_exit paths with | |
3492 | * buffers that are being copied from kernel to userspace, think 'read' | |
3493 | * syscall. | |
3494 | */ | |
3495 | if (trace.syscalls.events.augmented) { | |
3496 | evsel = trace.syscalls.events.augmented; | |
3497 | ||
3498 | if (perf_evsel__init_augmented_syscall_tp(evsel) || | |
3499 | perf_evsel__init_augmented_syscall_tp_args(evsel)) | |
3500 | goto out; | |
3501 | evsel->handler = trace__sys_enter; | |
3502 | ||
3503 | evlist__for_each_entry(trace.evlist, evsel) { | |
3c5e3dab ACM |
3504 | if (strstarts(perf_evsel__name(evsel), "syscalls:sys_exit_") || |
3505 | strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_exit") == 0) { | |
b1a9e253 ACM |
3506 | perf_evsel__init_augmented_syscall_tp(evsel); |
3507 | perf_evsel__init_augmented_syscall_tp_ret(evsel); | |
3508 | evsel->handler = trace__sys_exit; | |
3509 | } | |
3510 | } | |
3511 | } | |
3512 | ||
1e28fe0a SF |
3513 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
3514 | return trace__record(&trace, argc-1, &argv[1]); | |
3515 | ||
3516 | /* summary_only implies summary option, but don't overwrite summary if set */ | |
3517 | if (trace.summary_only) | |
3518 | trace.summary = trace.summary_only; | |
3519 | ||
726f3234 ACM |
3520 | if (!trace.trace_syscalls && !trace.trace_pgfaults && |
3521 | trace.evlist->nr_entries == 0 /* Was --events used? */) { | |
b912885a | 3522 | trace.trace_syscalls = true; |
59247e33 ACM |
3523 | } |
3524 | ||
c24ff998 ACM |
3525 | if (output_name != NULL) { |
3526 | err = trace__open_output(&trace, output_name); | |
3527 | if (err < 0) { | |
3528 | perror("failed to create output file"); | |
3529 | goto out; | |
3530 | } | |
3531 | } | |
3532 | ||
602ad878 | 3533 | err = target__validate(&trace.opts.target); |
32caf0d1 | 3534 | if (err) { |
602ad878 | 3535 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3536 | fprintf(trace.output, "%s", bf); |
3537 | goto out_close; | |
32caf0d1 NK |
3538 | } |
3539 | ||
602ad878 | 3540 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 3541 | if (err) { |
602ad878 | 3542 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3543 | fprintf(trace.output, "%s", bf); |
3544 | goto out_close; | |
514f1c67 ACM |
3545 | } |
3546 | ||
602ad878 | 3547 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
3548 | trace.opts.target.system_wide = true; |
3549 | ||
6810fc91 DA |
3550 | if (input_name) |
3551 | err = trace__replay(&trace); | |
3552 | else | |
3553 | err = trace__run(&trace, argc, argv); | |
1302d88e | 3554 | |
c24ff998 ACM |
3555 | out_close: |
3556 | if (output_name != NULL) | |
3557 | fclose(trace.output); | |
3558 | out: | |
1302d88e | 3559 | return err; |
514f1c67 | 3560 | } |