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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> |
744fafc7 | 21 | #include <bpf/bpf.h> |
514f1c67 | 22 | #include "builtin.h" |
9ea42ba4 | 23 | #include "util/cgroup.h" |
752fde44 | 24 | #include "util/color.h" |
ac96287c | 25 | #include "util/config.h" |
7c304ee0 | 26 | #include "util/debug.h" |
092bd3cd | 27 | #include "util/env.h" |
5ab8c689 | 28 | #include "util/event.h" |
514f1c67 | 29 | #include "util/evlist.h" |
4b6ab94e | 30 | #include <subcmd/exec-cmd.h> |
752fde44 | 31 | #include "util/machine.h" |
9a3993d4 | 32 | #include "util/path.h" |
6810fc91 | 33 | #include "util/session.h" |
752fde44 | 34 | #include "util/thread.h" |
4b6ab94e | 35 | #include <subcmd/parse-options.h> |
2ae3a312 | 36 | #include "util/strlist.h" |
bdc89661 | 37 | #include "util/intlist.h" |
514f1c67 | 38 | #include "util/thread_map.h" |
bf2575c1 | 39 | #include "util/stat.h" |
fd5cead2 | 40 | #include "trace/beauty/beauty.h" |
97978b3e | 41 | #include "trace-event.h" |
9aca7f17 | 42 | #include "util/parse-events.h" |
ba504235 | 43 | #include "util/bpf-loader.h" |
566a0885 | 44 | #include "callchain.h" |
fea01392 | 45 | #include "print_binary.h" |
a067558e | 46 | #include "string2.h" |
fd0db102 | 47 | #include "syscalltbl.h" |
96c14451 | 48 | #include "rb_resort.h" |
514f1c67 | 49 | |
a43783ae | 50 | #include <errno.h> |
fd20e811 | 51 | #include <inttypes.h> |
4208735d | 52 | #include <poll.h> |
9607ad3a | 53 | #include <signal.h> |
514f1c67 | 54 | #include <stdlib.h> |
017037ff | 55 | #include <string.h> |
8dd2a131 | 56 | #include <linux/err.h> |
997bba8c | 57 | #include <linux/filter.h> |
877a7a11 | 58 | #include <linux/kernel.h> |
39878d49 | 59 | #include <linux/random.h> |
c6d4a494 | 60 | #include <linux/stringify.h> |
bd48c63e | 61 | #include <linux/time64.h> |
bafae98e | 62 | #include <fcntl.h> |
4bcc4cff | 63 | #include <sys/sysmacros.h> |
514f1c67 | 64 | |
3d689ed6 ACM |
65 | #include "sane_ctype.h" |
66 | ||
c188e7ac ACM |
67 | #ifndef O_CLOEXEC |
68 | # define O_CLOEXEC 02000000 | |
69 | #endif | |
70 | ||
83a51694 ACM |
71 | #ifndef F_LINUX_SPECIFIC_BASE |
72 | # define F_LINUX_SPECIFIC_BASE 1024 | |
73 | #endif | |
74 | ||
d1d438a3 ACM |
75 | struct trace { |
76 | struct perf_tool tool; | |
fd0db102 | 77 | struct syscalltbl *sctbl; |
d1d438a3 ACM |
78 | struct { |
79 | int max; | |
80 | struct syscall *table; | |
b27b38ed | 81 | struct bpf_map *map; |
d1d438a3 ACM |
82 | struct { |
83 | struct perf_evsel *sys_enter, | |
d3d1c4bd ACM |
84 | *sys_exit, |
85 | *augmented; | |
d1d438a3 ACM |
86 | } events; |
87 | } syscalls; | |
88 | struct record_opts opts; | |
89 | struct perf_evlist *evlist; | |
90 | struct machine *host; | |
91 | struct thread *current; | |
9ea42ba4 | 92 | struct cgroup *cgroup; |
d1d438a3 ACM |
93 | u64 base_time; |
94 | FILE *output; | |
95 | unsigned long nr_events; | |
5067a8cd ACM |
96 | unsigned long nr_events_printed; |
97 | unsigned long max_events; | |
d1d438a3 ACM |
98 | struct strlist *ev_qualifier; |
99 | struct { | |
100 | size_t nr; | |
101 | int *entries; | |
102 | } ev_qualifier_ids; | |
d1d438a3 ACM |
103 | struct { |
104 | size_t nr; | |
105 | pid_t *entries; | |
744fafc7 | 106 | struct bpf_map *map; |
d1d438a3 ACM |
107 | } filter_pids; |
108 | double duration_filter; | |
109 | double runtime_ms; | |
110 | struct { | |
111 | u64 vfs_getname, | |
112 | proc_getname; | |
113 | } stats; | |
c6d4a494 | 114 | unsigned int max_stack; |
5cf9c84e | 115 | unsigned int min_stack; |
b9b6a2ea | 116 | int raw_augmented_syscalls_args_size; |
cd26ea6d | 117 | bool raw_augmented_syscalls; |
b9b6a2ea | 118 | bool sort_events; |
d1d438a3 ACM |
119 | bool not_ev_qualifier; |
120 | bool live; | |
121 | bool full_time; | |
122 | bool sched; | |
123 | bool multiple_threads; | |
124 | bool summary; | |
125 | bool summary_only; | |
0a6545bd | 126 | bool failure_only; |
d1d438a3 | 127 | bool show_comm; |
591421e1 | 128 | bool print_sample; |
d1d438a3 ACM |
129 | bool show_tool_stats; |
130 | bool trace_syscalls; | |
44621819 | 131 | bool kernel_syscallchains; |
9ed45d59 | 132 | s16 args_alignment; |
b036146f | 133 | bool show_tstamp; |
42e4a52d | 134 | bool show_duration; |
e7c634fc | 135 | bool show_zeros; |
9d6dc178 | 136 | bool show_arg_names; |
c65c83ff | 137 | bool show_string_prefix; |
d1d438a3 ACM |
138 | bool force; |
139 | bool vfs_getname; | |
140 | int trace_pgfaults; | |
028713aa JO |
141 | struct { |
142 | struct ordered_events data; | |
143 | u64 last; | |
144 | } oe; | |
d1d438a3 | 145 | }; |
a1c2552d | 146 | |
77170988 ACM |
147 | struct tp_field { |
148 | int offset; | |
149 | union { | |
150 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
151 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
152 | }; | |
153 | }; | |
154 | ||
155 | #define TP_UINT_FIELD(bits) \ | |
156 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
157 | { \ | |
55d43bca DA |
158 | u##bits value; \ |
159 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
160 | return value; \ | |
77170988 ACM |
161 | } |
162 | ||
163 | TP_UINT_FIELD(8); | |
164 | TP_UINT_FIELD(16); | |
165 | TP_UINT_FIELD(32); | |
166 | TP_UINT_FIELD(64); | |
167 | ||
168 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
169 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
170 | { \ | |
55d43bca DA |
171 | u##bits value; \ |
172 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
173 | return bswap_##bits(value);\ |
174 | } | |
175 | ||
176 | TP_UINT_FIELD__SWAPPED(16); | |
177 | TP_UINT_FIELD__SWAPPED(32); | |
178 | TP_UINT_FIELD__SWAPPED(64); | |
179 | ||
aa823f58 | 180 | static int __tp_field__init_uint(struct tp_field *field, int size, int offset, bool needs_swap) |
77170988 | 181 | { |
aa823f58 | 182 | field->offset = offset; |
77170988 | 183 | |
aa823f58 | 184 | switch (size) { |
77170988 ACM |
185 | case 1: |
186 | field->integer = tp_field__u8; | |
187 | break; | |
188 | case 2: | |
189 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
190 | break; | |
191 | case 4: | |
192 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
193 | break; | |
194 | case 8: | |
195 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
196 | break; | |
197 | default: | |
198 | return -1; | |
199 | } | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
2c92f982 | 204 | static int tp_field__init_uint(struct tp_field *field, struct tep_format_field *format_field, bool needs_swap) |
aa823f58 ACM |
205 | { |
206 | return __tp_field__init_uint(field, format_field->size, format_field->offset, needs_swap); | |
207 | } | |
208 | ||
77170988 ACM |
209 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) |
210 | { | |
211 | return sample->raw_data + field->offset; | |
212 | } | |
213 | ||
aa823f58 | 214 | static int __tp_field__init_ptr(struct tp_field *field, int offset) |
77170988 | 215 | { |
aa823f58 | 216 | field->offset = offset; |
77170988 ACM |
217 | field->pointer = tp_field__ptr; |
218 | return 0; | |
219 | } | |
220 | ||
2c92f982 | 221 | static int tp_field__init_ptr(struct tp_field *field, struct tep_format_field *format_field) |
aa823f58 ACM |
222 | { |
223 | return __tp_field__init_ptr(field, format_field->offset); | |
224 | } | |
225 | ||
77170988 ACM |
226 | struct syscall_tp { |
227 | struct tp_field id; | |
228 | union { | |
229 | struct tp_field args, ret; | |
230 | }; | |
231 | }; | |
232 | ||
233 | static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel, | |
234 | struct tp_field *field, | |
235 | const char *name) | |
236 | { | |
2c92f982 | 237 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
238 | |
239 | if (format_field == NULL) | |
240 | return -1; | |
241 | ||
242 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
243 | } | |
244 | ||
245 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
246 | ({ struct syscall_tp *sc = evsel->priv;\ | |
247 | perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) | |
248 | ||
249 | static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel, | |
250 | struct tp_field *field, | |
251 | const char *name) | |
252 | { | |
2c92f982 | 253 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
254 | |
255 | if (format_field == NULL) | |
256 | return -1; | |
257 | ||
258 | return tp_field__init_ptr(field, format_field); | |
259 | } | |
260 | ||
261 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
262 | ({ struct syscall_tp *sc = evsel->priv;\ | |
263 | perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) | |
264 | ||
265 | static void perf_evsel__delete_priv(struct perf_evsel *evsel) | |
266 | { | |
04662523 | 267 | zfree(&evsel->priv); |
77170988 ACM |
268 | perf_evsel__delete(evsel); |
269 | } | |
270 | ||
d32855fa ACM |
271 | static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel) |
272 | { | |
273 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
274 | ||
275 | if (evsel->priv != NULL) { | |
42da438c ACM |
276 | if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr") && |
277 | perf_evsel__init_tp_uint_field(evsel, &sc->id, "nr")) | |
d32855fa ACM |
278 | goto out_delete; |
279 | return 0; | |
280 | } | |
281 | ||
282 | return -ENOMEM; | |
283 | out_delete: | |
284 | zfree(&evsel->priv); | |
285 | return -ENOENT; | |
286 | } | |
287 | ||
b9b6a2ea | 288 | static int perf_evsel__init_augmented_syscall_tp(struct perf_evsel *evsel, struct perf_evsel *tp) |
d3d1c4bd ACM |
289 | { |
290 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
291 | ||
b9b6a2ea ACM |
292 | if (evsel->priv != NULL) { |
293 | struct tep_format_field *syscall_id = perf_evsel__field(tp, "id"); | |
294 | if (syscall_id == NULL) | |
295 | syscall_id = perf_evsel__field(tp, "__syscall_nr"); | |
296 | if (syscall_id == NULL) | |
297 | goto out_delete; | |
298 | if (__tp_field__init_uint(&sc->id, syscall_id->size, syscall_id->offset, evsel->needs_swap)) | |
d3d1c4bd ACM |
299 | goto out_delete; |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | return -ENOMEM; | |
305 | out_delete: | |
306 | zfree(&evsel->priv); | |
307 | return -EINVAL; | |
308 | } | |
309 | ||
310 | static int perf_evsel__init_augmented_syscall_tp_args(struct perf_evsel *evsel) | |
311 | { | |
312 | struct syscall_tp *sc = evsel->priv; | |
313 | ||
314 | return __tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64)); | |
315 | } | |
316 | ||
b1a9e253 ACM |
317 | static int perf_evsel__init_augmented_syscall_tp_ret(struct perf_evsel *evsel) |
318 | { | |
319 | struct syscall_tp *sc = evsel->priv; | |
320 | ||
321 | return __tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap); | |
322 | } | |
323 | ||
63f11c80 | 324 | static int perf_evsel__init_raw_syscall_tp(struct perf_evsel *evsel, void *handler) |
96695d44 NK |
325 | { |
326 | evsel->priv = malloc(sizeof(struct syscall_tp)); | |
327 | if (evsel->priv != NULL) { | |
328 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) | |
329 | goto out_delete; | |
330 | ||
331 | evsel->handler = handler; | |
332 | return 0; | |
333 | } | |
334 | ||
335 | return -ENOMEM; | |
336 | ||
337 | out_delete: | |
04662523 | 338 | zfree(&evsel->priv); |
96695d44 NK |
339 | return -ENOENT; |
340 | } | |
341 | ||
63f11c80 | 342 | static struct perf_evsel *perf_evsel__raw_syscall_newtp(const char *direction, void *handler) |
77170988 | 343 | { |
ef503831 | 344 | struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); |
77170988 | 345 | |
9aca7f17 | 346 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 347 | if (IS_ERR(evsel)) |
9aca7f17 DA |
348 | evsel = perf_evsel__newtp("syscalls", direction); |
349 | ||
8dd2a131 JO |
350 | if (IS_ERR(evsel)) |
351 | return NULL; | |
352 | ||
63f11c80 | 353 | if (perf_evsel__init_raw_syscall_tp(evsel, handler)) |
8dd2a131 | 354 | goto out_delete; |
77170988 ACM |
355 | |
356 | return evsel; | |
357 | ||
358 | out_delete: | |
359 | perf_evsel__delete_priv(evsel); | |
360 | return NULL; | |
361 | } | |
362 | ||
363 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
364 | ({ struct syscall_tp *fields = evsel->priv; \ | |
365 | fields->name.integer(&fields->name, sample); }) | |
366 | ||
367 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
368 | ({ struct syscall_tp *fields = evsel->priv; \ | |
369 | fields->name.pointer(&fields->name, sample); }) | |
370 | ||
c65c83ff | 371 | size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
0ae79636 ACM |
372 | { |
373 | int idx = val - sa->offset; | |
1f115cb7 | 374 | |
9614b8d6 ACM |
375 | if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) { |
376 | size_t printed = scnprintf(bf, size, intfmt, val); | |
377 | if (show_prefix) | |
378 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix); | |
379 | return printed; | |
380 | } | |
1f115cb7 | 381 | |
c65c83ff | 382 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
03e3adc9 ACM |
383 | } |
384 | ||
975b7c2f ACM |
385 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
386 | const char *intfmt, | |
387 | struct syscall_arg *arg) | |
1f115cb7 | 388 | { |
c65c83ff | 389 | return strarray__scnprintf(arg->parm, bf, size, intfmt, arg->show_string_prefix, arg->val); |
1f115cb7 ACM |
390 | } |
391 | ||
975b7c2f ACM |
392 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
393 | struct syscall_arg *arg) | |
394 | { | |
395 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
396 | } | |
397 | ||
1f115cb7 ACM |
398 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
399 | ||
1f2d085e | 400 | size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
83a51694 | 401 | { |
9614b8d6 | 402 | size_t printed; |
83a51694 ACM |
403 | int i; |
404 | ||
405 | for (i = 0; i < sas->nr_entries; ++i) { | |
406 | struct strarray *sa = sas->entries[i]; | |
1f2d085e | 407 | int idx = val - sa->offset; |
83a51694 ACM |
408 | |
409 | if (idx >= 0 && idx < sa->nr_entries) { | |
410 | if (sa->entries[idx] == NULL) | |
411 | break; | |
1f2d085e | 412 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
83a51694 ACM |
413 | } |
414 | } | |
415 | ||
9614b8d6 ACM |
416 | printed = scnprintf(bf, size, intfmt, val); |
417 | if (show_prefix) | |
418 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sas->entries[0]->prefix); | |
419 | return printed; | |
1f2d085e ACM |
420 | } |
421 | ||
422 | size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, | |
423 | struct syscall_arg *arg) | |
424 | { | |
425 | return strarrays__scnprintf(arg->parm, bf, size, "%d", arg->show_string_prefix, arg->val); | |
83a51694 ACM |
426 | } |
427 | ||
48e1f91a ACM |
428 | #ifndef AT_FDCWD |
429 | #define AT_FDCWD -100 | |
430 | #endif | |
431 | ||
75b757ca ACM |
432 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, |
433 | struct syscall_arg *arg) | |
434 | { | |
435 | int fd = arg->val; | |
c65c83ff | 436 | const char *prefix = "AT_FD"; |
75b757ca ACM |
437 | |
438 | if (fd == AT_FDCWD) | |
c65c83ff | 439 | return scnprintf(bf, size, "%s%s", arg->show_string_prefix ? prefix : "", "CWD"); |
75b757ca ACM |
440 | |
441 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
442 | } | |
443 | ||
444 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
445 | ||
446 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
447 | struct syscall_arg *arg); | |
448 | ||
449 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
450 | ||
2c2b1623 | 451 | size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg) |
13d4ff3e | 452 | { |
01533e97 | 453 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
454 | } |
455 | ||
ce05539f ACM |
456 | size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg) |
457 | { | |
458 | if (arg->val == 0) | |
459 | return scnprintf(bf, size, "NULL"); | |
460 | return syscall_arg__scnprintf_hex(bf, size, arg); | |
461 | } | |
462 | ||
2c2b1623 | 463 | size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg) |
a1c2552d ACM |
464 | { |
465 | return scnprintf(bf, size, "%d", arg->val); | |
466 | } | |
467 | ||
5dde91ed ACM |
468 | size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg) |
469 | { | |
470 | return scnprintf(bf, size, "%ld", arg->val); | |
471 | } | |
472 | ||
729a7841 ACM |
473 | static const char *bpf_cmd[] = { |
474 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
475 | "MAP_GET_NEXT_KEY", "PROG_LOAD", | |
476 | }; | |
2e3d7fac | 477 | static DEFINE_STRARRAY(bpf_cmd, "BPF_"); |
729a7841 | 478 | |
03e3adc9 | 479 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
2e3d7fac | 480 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, "EPOLL_CTL_", 1); |
eac032c5 | 481 | |
1f115cb7 | 482 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
2e3d7fac | 483 | static DEFINE_STRARRAY(itimers, "ITIMER_"); |
1f115cb7 | 484 | |
b62bee1b ACM |
485 | static const char *keyctl_options[] = { |
486 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
487 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
488 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
489 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
490 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
491 | }; | |
2e3d7fac | 492 | static DEFINE_STRARRAY(keyctl_options, "KEYCTL_"); |
b62bee1b | 493 | |
efe6b882 ACM |
494 | static const char *whences[] = { "SET", "CUR", "END", |
495 | #ifdef SEEK_DATA | |
496 | "DATA", | |
497 | #endif | |
498 | #ifdef SEEK_HOLE | |
499 | "HOLE", | |
500 | #endif | |
501 | }; | |
2e3d7fac | 502 | static DEFINE_STRARRAY(whences, "SEEK_"); |
f9da0b0c | 503 | |
80f587d5 ACM |
504 | static const char *fcntl_cmds[] = { |
505 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
e000e5e3 ACM |
506 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "GETLK64", |
507 | "SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX", | |
508 | "GETOWNER_UIDS", | |
80f587d5 | 509 | }; |
2e3d7fac | 510 | static DEFINE_STRARRAY(fcntl_cmds, "F_"); |
80f587d5 | 511 | |
83a51694 ACM |
512 | static const char *fcntl_linux_specific_cmds[] = { |
513 | "SETLEASE", "GETLEASE", "NOTIFY", [5] = "CANCELLK", "DUPFD_CLOEXEC", | |
514 | "SETPIPE_SZ", "GETPIPE_SZ", "ADD_SEALS", "GET_SEALS", | |
64e4561d | 515 | "GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT", |
83a51694 ACM |
516 | }; |
517 | ||
2e3d7fac | 518 | static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, "F_", F_LINUX_SPECIFIC_BASE); |
83a51694 ACM |
519 | |
520 | static struct strarray *fcntl_cmds_arrays[] = { | |
521 | &strarray__fcntl_cmds, | |
522 | &strarray__fcntl_linux_specific_cmds, | |
523 | }; | |
524 | ||
525 | static DEFINE_STRARRAYS(fcntl_cmds_arrays); | |
526 | ||
c045bf02 ACM |
527 | static const char *rlimit_resources[] = { |
528 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
529 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
530 | "RTTIME", | |
531 | }; | |
2e3d7fac | 532 | static DEFINE_STRARRAY(rlimit_resources, "RLIMIT_"); |
c045bf02 | 533 | |
eb5b1b14 | 534 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
2e3d7fac | 535 | static DEFINE_STRARRAY(sighow, "SIG_"); |
eb5b1b14 | 536 | |
4f8c1b74 DA |
537 | static const char *clockid[] = { |
538 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
539 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
540 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 | 541 | }; |
2e3d7fac | 542 | static DEFINE_STRARRAY(clockid, "CLOCK_"); |
4f8c1b74 | 543 | |
51108999 ACM |
544 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
545 | struct syscall_arg *arg) | |
546 | { | |
c65c83ff ACM |
547 | bool show_prefix = arg->show_string_prefix; |
548 | const char *suffix = "_OK"; | |
51108999 ACM |
549 | size_t printed = 0; |
550 | int mode = arg->val; | |
551 | ||
552 | if (mode == F_OK) /* 0 */ | |
c65c83ff | 553 | return scnprintf(bf, size, "F%s", show_prefix ? suffix : ""); |
51108999 ACM |
554 | #define P_MODE(n) \ |
555 | if (mode & n##_OK) { \ | |
c65c83ff | 556 | printed += scnprintf(bf + printed, size - printed, "%s%s", #n, show_prefix ? suffix : ""); \ |
51108999 ACM |
557 | mode &= ~n##_OK; \ |
558 | } | |
559 | ||
560 | P_MODE(R); | |
561 | P_MODE(W); | |
562 | P_MODE(X); | |
563 | #undef P_MODE | |
564 | ||
565 | if (mode) | |
566 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
567 | ||
568 | return printed; | |
569 | } | |
570 | ||
571 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
572 | ||
f994592d ACM |
573 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
574 | struct syscall_arg *arg); | |
575 | ||
576 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
577 | ||
46cce19b ACM |
578 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
579 | struct syscall_arg *arg) | |
580 | { | |
c65c83ff ACM |
581 | bool show_prefix = arg->show_string_prefix; |
582 | const char *prefix = "O_"; | |
46cce19b ACM |
583 | int printed = 0, flags = arg->val; |
584 | ||
585 | #define P_FLAG(n) \ | |
586 | if (flags & O_##n) { \ | |
c65c83ff | 587 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
46cce19b ACM |
588 | flags &= ~O_##n; \ |
589 | } | |
590 | ||
591 | P_FLAG(CLOEXEC); | |
592 | P_FLAG(NONBLOCK); | |
593 | #undef P_FLAG | |
594 | ||
595 | if (flags) | |
596 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
597 | ||
598 | return printed; | |
599 | } | |
600 | ||
601 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
602 | ||
a355a61e ACM |
603 | #ifndef GRND_NONBLOCK |
604 | #define GRND_NONBLOCK 0x0001 | |
605 | #endif | |
606 | #ifndef GRND_RANDOM | |
607 | #define GRND_RANDOM 0x0002 | |
608 | #endif | |
609 | ||
39878d49 ACM |
610 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
611 | struct syscall_arg *arg) | |
612 | { | |
c65c83ff ACM |
613 | bool show_prefix = arg->show_string_prefix; |
614 | const char *prefix = "GRND_"; | |
39878d49 ACM |
615 | int printed = 0, flags = arg->val; |
616 | ||
617 | #define P_FLAG(n) \ | |
618 | if (flags & GRND_##n) { \ | |
c65c83ff | 619 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
39878d49 ACM |
620 | flags &= ~GRND_##n; \ |
621 | } | |
622 | ||
623 | P_FLAG(RANDOM); | |
624 | P_FLAG(NONBLOCK); | |
625 | #undef P_FLAG | |
626 | ||
627 | if (flags) | |
628 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
629 | ||
630 | return printed; | |
631 | } | |
632 | ||
633 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
634 | ||
82d4a110 ACM |
635 | #define STRARRAY(name, array) \ |
636 | { .scnprintf = SCA_STRARRAY, \ | |
637 | .parm = &strarray__##array, } | |
453350dd | 638 | |
092bd3cd | 639 | #include "trace/beauty/arch_errno_names.c" |
ea8dc3ce | 640 | #include "trace/beauty/eventfd.c" |
d5d71e86 | 641 | #include "trace/beauty/futex_op.c" |
3258abe0 | 642 | #include "trace/beauty/futex_val3.c" |
df4cb167 | 643 | #include "trace/beauty/mmap.c" |
ba2f22cf | 644 | #include "trace/beauty/mode_t.c" |
a30e6259 | 645 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 646 | #include "trace/beauty/open_flags.c" |
62de344e | 647 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 648 | #include "trace/beauty/pid.c" |
a3bca91f | 649 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 650 | #include "trace/beauty/seccomp.c" |
12199d8e | 651 | #include "trace/beauty/signum.c" |
bbf86c43 | 652 | #include "trace/beauty/socket_type.c" |
7206b900 | 653 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 654 | |
82d4a110 ACM |
655 | struct syscall_arg_fmt { |
656 | size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg); | |
496fd346 | 657 | unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val); |
82d4a110 | 658 | void *parm; |
c51bdfec | 659 | const char *name; |
d47737d5 | 660 | bool show_zero; |
82d4a110 ACM |
661 | }; |
662 | ||
514f1c67 ACM |
663 | static struct syscall_fmt { |
664 | const char *name; | |
aec1930b | 665 | const char *alias; |
82d4a110 | 666 | struct syscall_arg_fmt arg[6]; |
332337da | 667 | u8 nr_args; |
11c8e39f | 668 | bool errpid; |
514f1c67 | 669 | bool timeout; |
04b34729 | 670 | bool hexret; |
514f1c67 | 671 | } syscall_fmts[] = { |
1f63139c | 672 | { .name = "access", |
82d4a110 | 673 | .arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, }, |
fb7068e7 ACM |
674 | { .name = "arch_prctl", |
675 | .arg = { [0] = { .scnprintf = SCA_X86_ARCH_PRCTL_CODE, /* code */ }, | |
676 | [1] = { .scnprintf = SCA_PTR, /* arg2 */ }, }, }, | |
02ef2884 ACM |
677 | { .name = "bind", |
678 | .arg = { [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, }, }, | |
1f63139c | 679 | { .name = "bpf", |
82d4a110 | 680 | .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, }, |
beccb2b5 | 681 | { .name = "brk", .hexret = true, |
ce05539f | 682 | .arg = { [0] = { .scnprintf = SCA_PTR, /* brk */ }, }, }, |
1f63139c | 683 | { .name = "clock_gettime", |
82d4a110 | 684 | .arg = { [0] = STRARRAY(clk_id, clockid), }, }, |
33396a3a ACM |
685 | { .name = "clone", .errpid = true, .nr_args = 5, |
686 | .arg = { [0] = { .name = "flags", .scnprintf = SCA_CLONE_FLAGS, }, | |
687 | [1] = { .name = "child_stack", .scnprintf = SCA_HEX, }, | |
688 | [2] = { .name = "parent_tidptr", .scnprintf = SCA_HEX, }, | |
689 | [3] = { .name = "child_tidptr", .scnprintf = SCA_HEX, }, | |
690 | [4] = { .name = "tls", .scnprintf = SCA_HEX, }, }, }, | |
1f63139c | 691 | { .name = "close", |
82d4a110 | 692 | .arg = { [0] = { .scnprintf = SCA_CLOSE_FD, /* fd */ }, }, }, |
d5a7e661 ACM |
693 | { .name = "connect", |
694 | .arg = { [1] = { .scnprintf = SCA_SOCKADDR, /* servaddr */ }, }, }, | |
1f63139c | 695 | { .name = "epoll_ctl", |
82d4a110 | 696 | .arg = { [1] = STRARRAY(op, epoll_ctl_ops), }, }, |
1f63139c | 697 | { .name = "eventfd2", |
82d4a110 | 698 | .arg = { [1] = { .scnprintf = SCA_EFD_FLAGS, /* flags */ }, }, }, |
1f63139c | 699 | { .name = "fchmodat", |
82d4a110 | 700 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 701 | { .name = "fchownat", |
82d4a110 | 702 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 703 | { .name = "fcntl", |
82d4a110 | 704 | .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */ |
39cc355b ACM |
705 | .parm = &strarrays__fcntl_cmds_arrays, |
706 | .show_zero = true, }, | |
82d4a110 | 707 | [2] = { .scnprintf = SCA_FCNTL_ARG, /* arg */ }, }, }, |
1f63139c | 708 | { .name = "flock", |
82d4a110 | 709 | .arg = { [1] = { .scnprintf = SCA_FLOCK, /* cmd */ }, }, }, |
1f63139c ACM |
710 | { .name = "fstat", .alias = "newfstat", }, |
711 | { .name = "fstatat", .alias = "newfstatat", }, | |
712 | { .name = "futex", | |
3258abe0 ACM |
713 | .arg = { [1] = { .scnprintf = SCA_FUTEX_OP, /* op */ }, |
714 | [5] = { .scnprintf = SCA_FUTEX_VAL3, /* val3 */ }, }, }, | |
1f63139c | 715 | { .name = "futimesat", |
82d4a110 | 716 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 717 | { .name = "getitimer", |
82d4a110 | 718 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
c65f1070 | 719 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 720 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 721 | { .name = "getppid", .errpid = true, }, |
1f63139c | 722 | { .name = "getrandom", |
82d4a110 | 723 | .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, }, |
1f63139c | 724 | { .name = "getrlimit", |
82d4a110 | 725 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
2d1073de | 726 | { .name = "gettid", .errpid = true, }, |
1f63139c | 727 | { .name = "ioctl", |
82d4a110 | 728 | .arg = { |
844ae5b4 ACM |
729 | #if defined(__i386__) || defined(__x86_64__) |
730 | /* | |
731 | * FIXME: Make this available to all arches. | |
732 | */ | |
1cc47f2d | 733 | [1] = { .scnprintf = SCA_IOCTL_CMD, /* cmd */ }, |
82d4a110 | 734 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 735 | #else |
82d4a110 | 736 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 737 | #endif |
1de3038d ACM |
738 | { .name = "kcmp", .nr_args = 5, |
739 | .arg = { [0] = { .name = "pid1", .scnprintf = SCA_PID, }, | |
740 | [1] = { .name = "pid2", .scnprintf = SCA_PID, }, | |
741 | [2] = { .name = "type", .scnprintf = SCA_KCMP_TYPE, }, | |
742 | [3] = { .name = "idx1", .scnprintf = SCA_KCMP_IDX, }, | |
743 | [4] = { .name = "idx2", .scnprintf = SCA_KCMP_IDX, }, }, }, | |
1f63139c | 744 | { .name = "keyctl", |
82d4a110 | 745 | .arg = { [0] = STRARRAY(option, keyctl_options), }, }, |
1f63139c | 746 | { .name = "kill", |
82d4a110 | 747 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 748 | { .name = "linkat", |
82d4a110 | 749 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 750 | { .name = "lseek", |
82d4a110 | 751 | .arg = { [2] = STRARRAY(whence, whences), }, }, |
1f63139c ACM |
752 | { .name = "lstat", .alias = "newlstat", }, |
753 | { .name = "madvise", | |
82d4a110 ACM |
754 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
755 | [2] = { .scnprintf = SCA_MADV_BHV, /* behavior */ }, }, }, | |
1f63139c | 756 | { .name = "mkdirat", |
82d4a110 | 757 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 758 | { .name = "mknodat", |
82d4a110 | 759 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
beccb2b5 | 760 | { .name = "mmap", .hexret = true, |
54265664 JO |
761 | /* The standard mmap maps to old_mmap on s390x */ |
762 | #if defined(__s390x__) | |
763 | .alias = "old_mmap", | |
764 | #endif | |
ce05539f | 765 | .arg = { [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, |
a6631340 ACM |
766 | [3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */ }, |
767 | [5] = { .scnprintf = SCA_HEX, /* offset */ }, }, }, | |
73d141ad | 768 | { .name = "mount", |
23c07a23 ACM |
769 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ }, |
770 | [3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */ | |
73d141ad | 771 | .mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, }, |
1f63139c | 772 | { .name = "mprotect", |
82d4a110 ACM |
773 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
774 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, }, | |
1f63139c | 775 | { .name = "mq_unlink", |
82d4a110 | 776 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, }, |
ae685380 | 777 | { .name = "mremap", .hexret = true, |
ce05539f | 778 | .arg = { [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, }, }, |
1f63139c | 779 | { .name = "name_to_handle_at", |
82d4a110 | 780 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 781 | { .name = "newfstatat", |
82d4a110 | 782 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 783 | { .name = "open", |
82d4a110 | 784 | .arg = { [1] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, |
1f63139c | 785 | { .name = "open_by_handle_at", |
82d4a110 ACM |
786 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
787 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 788 | { .name = "openat", |
82d4a110 ACM |
789 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
790 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 791 | { .name = "perf_event_open", |
82d4a110 ACM |
792 | .arg = { [2] = { .scnprintf = SCA_INT, /* cpu */ }, |
793 | [3] = { .scnprintf = SCA_FD, /* group_fd */ }, | |
794 | [4] = { .scnprintf = SCA_PERF_FLAGS, /* flags */ }, }, }, | |
1f63139c | 795 | { .name = "pipe2", |
82d4a110 | 796 | .arg = { [1] = { .scnprintf = SCA_PIPE_FLAGS, /* flags */ }, }, }, |
83bc9c37 ACM |
797 | { .name = "pkey_alloc", |
798 | .arg = { [1] = { .scnprintf = SCA_PKEY_ALLOC_ACCESS_RIGHTS, /* access_rights */ }, }, }, | |
799 | { .name = "pkey_free", | |
800 | .arg = { [0] = { .scnprintf = SCA_INT, /* key */ }, }, }, | |
801 | { .name = "pkey_mprotect", | |
802 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, | |
803 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, | |
804 | [3] = { .scnprintf = SCA_INT, /* pkey */ }, }, }, | |
1f63139c ACM |
805 | { .name = "poll", .timeout = true, }, |
806 | { .name = "ppoll", .timeout = true, }, | |
fb7068e7 | 807 | { .name = "prctl", |
d688d037 ACM |
808 | .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */ }, |
809 | [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ }, | |
810 | [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, }, | |
1f63139c ACM |
811 | { .name = "pread", .alias = "pread64", }, |
812 | { .name = "preadv", .alias = "pread", }, | |
813 | { .name = "prlimit64", | |
82d4a110 | 814 | .arg = { [1] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c ACM |
815 | { .name = "pwrite", .alias = "pwrite64", }, |
816 | { .name = "readlinkat", | |
82d4a110 | 817 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 818 | { .name = "recvfrom", |
82d4a110 | 819 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 820 | { .name = "recvmmsg", |
82d4a110 | 821 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 822 | { .name = "recvmsg", |
82d4a110 | 823 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 824 | { .name = "renameat", |
436651ca ACM |
825 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, |
826 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, }, }, | |
84a83541 ACM |
827 | { .name = "renameat2", |
828 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, | |
ca7ff2c8 ACM |
829 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, |
830 | [4] = { .scnprintf = SCA_RENAMEAT2_FLAGS, /* flags */ }, }, }, | |
1f63139c | 831 | { .name = "rt_sigaction", |
82d4a110 | 832 | .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 833 | { .name = "rt_sigprocmask", |
82d4a110 | 834 | .arg = { [0] = STRARRAY(how, sighow), }, }, |
1f63139c | 835 | { .name = "rt_sigqueueinfo", |
82d4a110 | 836 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 837 | { .name = "rt_tgsigqueueinfo", |
82d4a110 | 838 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 839 | { .name = "sched_setscheduler", |
82d4a110 | 840 | .arg = { [1] = { .scnprintf = SCA_SCHED_POLICY, /* policy */ }, }, }, |
1f63139c | 841 | { .name = "seccomp", |
82d4a110 ACM |
842 | .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP, /* op */ }, |
843 | [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, }, | |
1f63139c ACM |
844 | { .name = "select", .timeout = true, }, |
845 | { .name = "sendmmsg", | |
82d4a110 | 846 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 847 | { .name = "sendmsg", |
82d4a110 | 848 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 849 | { .name = "sendto", |
6ebb6862 ACM |
850 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, |
851 | [4] = { .scnprintf = SCA_SOCKADDR, /* addr */ }, }, }, | |
c65f1070 | 852 | { .name = "set_tid_address", .errpid = true, }, |
1f63139c | 853 | { .name = "setitimer", |
82d4a110 | 854 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
1f63139c | 855 | { .name = "setrlimit", |
82d4a110 | 856 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c | 857 | { .name = "socket", |
82d4a110 | 858 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
859 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
860 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c | 861 | { .name = "socketpair", |
82d4a110 | 862 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
863 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
864 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c ACM |
865 | { .name = "stat", .alias = "newstat", }, |
866 | { .name = "statx", | |
82d4a110 ACM |
867 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ }, |
868 | [2] = { .scnprintf = SCA_STATX_FLAGS, /* flags */ } , | |
869 | [3] = { .scnprintf = SCA_STATX_MASK, /* mask */ }, }, }, | |
1f63139c | 870 | { .name = "swapoff", |
82d4a110 | 871 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 872 | { .name = "swapon", |
82d4a110 | 873 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 874 | { .name = "symlinkat", |
82d4a110 | 875 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 876 | { .name = "tgkill", |
82d4a110 | 877 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 878 | { .name = "tkill", |
82d4a110 | 879 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
476c92ca ACM |
880 | { .name = "umount2", .alias = "umount", |
881 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, }, | |
1f63139c ACM |
882 | { .name = "uname", .alias = "newuname", }, |
883 | { .name = "unlinkat", | |
82d4a110 | 884 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 885 | { .name = "utimensat", |
82d4a110 | 886 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dirfd */ }, }, }, |
11c8e39f | 887 | { .name = "wait4", .errpid = true, |
82d4a110 | 888 | .arg = { [2] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
11c8e39f | 889 | { .name = "waitid", .errpid = true, |
82d4a110 | 890 | .arg = { [3] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
514f1c67 ACM |
891 | }; |
892 | ||
893 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
894 | { | |
895 | const struct syscall_fmt *fmt = fmtp; | |
896 | return strcmp(name, fmt->name); | |
897 | } | |
898 | ||
899 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
900 | { | |
901 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
902 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
903 | } | |
904 | ||
f932184e ACM |
905 | static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias) |
906 | { | |
907 | int i, nmemb = ARRAY_SIZE(syscall_fmts); | |
908 | ||
909 | for (i = 0; i < nmemb; ++i) { | |
910 | if (syscall_fmts[i].alias && strcmp(syscall_fmts[i].alias, alias) == 0) | |
911 | return &syscall_fmts[i]; | |
912 | } | |
913 | ||
914 | return NULL; | |
915 | } | |
916 | ||
6a648b53 ACM |
917 | /* |
918 | * is_exit: is this "exit" or "exit_group"? | |
919 | * is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter. | |
7a983a0f | 920 | * args_size: sum of the sizes of the syscall arguments, anything after that is augmented stuff: pathname for openat, etc. |
6a648b53 | 921 | */ |
514f1c67 | 922 | struct syscall { |
97fbf3f0 | 923 | struct tep_event *tp_format; |
f208bd8d | 924 | int nr_args; |
7a983a0f | 925 | int args_size; |
6a648b53 ACM |
926 | bool is_exit; |
927 | bool is_open; | |
2c92f982 | 928 | struct tep_format_field *args; |
514f1c67 ACM |
929 | const char *name; |
930 | struct syscall_fmt *fmt; | |
82d4a110 | 931 | struct syscall_arg_fmt *arg_fmt; |
514f1c67 ACM |
932 | }; |
933 | ||
bbab50dd ACM |
934 | struct bpf_map_syscall_entry { |
935 | bool enabled; | |
936 | }; | |
937 | ||
fd2b2975 ACM |
938 | /* |
939 | * We need to have this 'calculated' boolean because in some cases we really | |
940 | * don't know what is the duration of a syscall, for instance, when we start | |
941 | * a session and some threads are waiting for a syscall to finish, say 'poll', | |
942 | * in which case all we can do is to print "( ? ) for duration and for the | |
943 | * start timestamp. | |
944 | */ | |
945 | static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp) | |
60c907ab ACM |
946 | { |
947 | double duration = (double)t / NSEC_PER_MSEC; | |
948 | size_t printed = fprintf(fp, "("); | |
949 | ||
fd2b2975 | 950 | if (!calculated) |
522283fe | 951 | printed += fprintf(fp, " "); |
fd2b2975 | 952 | else if (duration >= 1.0) |
60c907ab ACM |
953 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); |
954 | else if (duration >= 0.01) | |
955 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
956 | else | |
957 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 958 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
959 | } |
960 | ||
f994592d ACM |
961 | /** |
962 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
963 | * filename.entry_str_pos: Where to insert the string translated from | |
964 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
84486caa ACM |
965 | * ret_scnprintf: syscall args may set this to a different syscall return |
966 | * formatter, for instance, fcntl may return fds, file flags, etc. | |
f994592d | 967 | */ |
752fde44 ACM |
968 | struct thread_trace { |
969 | u64 entry_time; | |
752fde44 | 970 | bool entry_pending; |
efd5745e | 971 | unsigned long nr_events; |
a2ea67d7 | 972 | unsigned long pfmaj, pfmin; |
752fde44 | 973 | char *entry_str; |
1302d88e | 974 | double runtime_ms; |
7ee57434 | 975 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
f994592d ACM |
976 | struct { |
977 | unsigned long ptr; | |
7f4f8001 ACM |
978 | short int entry_str_pos; |
979 | bool pending_open; | |
980 | unsigned int namelen; | |
981 | char *name; | |
f994592d | 982 | } filename; |
75b757ca | 983 | struct { |
f4a74fcb ACM |
984 | int max; |
985 | struct file *table; | |
986 | } files; | |
bf2575c1 DA |
987 | |
988 | struct intlist *syscall_stats; | |
752fde44 ACM |
989 | }; |
990 | ||
991 | static struct thread_trace *thread_trace__new(void) | |
992 | { | |
75b757ca ACM |
993 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
994 | ||
995 | if (ttrace) | |
f4a74fcb | 996 | ttrace->files.max = -1; |
75b757ca | 997 | |
bf2575c1 DA |
998 | ttrace->syscall_stats = intlist__new(NULL); |
999 | ||
75b757ca | 1000 | return ttrace; |
752fde44 ACM |
1001 | } |
1002 | ||
c24ff998 | 1003 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 1004 | { |
efd5745e ACM |
1005 | struct thread_trace *ttrace; |
1006 | ||
752fde44 ACM |
1007 | if (thread == NULL) |
1008 | goto fail; | |
1009 | ||
89dceb22 NK |
1010 | if (thread__priv(thread) == NULL) |
1011 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 1012 | |
89dceb22 | 1013 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
1014 | goto fail; |
1015 | ||
89dceb22 | 1016 | ttrace = thread__priv(thread); |
efd5745e ACM |
1017 | ++ttrace->nr_events; |
1018 | ||
1019 | return ttrace; | |
752fde44 | 1020 | fail: |
c24ff998 | 1021 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
1022 | "WARNING: not enough memory, dropping samples!\n"); |
1023 | return NULL; | |
1024 | } | |
1025 | ||
84486caa ACM |
1026 | |
1027 | void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg, | |
7ee57434 | 1028 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg)) |
84486caa ACM |
1029 | { |
1030 | struct thread_trace *ttrace = thread__priv(arg->thread); | |
1031 | ||
1032 | ttrace->ret_scnprintf = ret_scnprintf; | |
1033 | } | |
1034 | ||
598d02c5 SF |
1035 | #define TRACE_PFMAJ (1 << 0) |
1036 | #define TRACE_PFMIN (1 << 1) | |
1037 | ||
e4d44e83 ACM |
1038 | static const size_t trace__entry_str_size = 2048; |
1039 | ||
d7e13484 | 1040 | static struct file *thread_trace__files_entry(struct thread_trace *ttrace, int fd) |
75b757ca | 1041 | { |
f4a74fcb ACM |
1042 | if (fd > ttrace->files.max) { |
1043 | struct file *nfiles = realloc(ttrace->files.table, (fd + 1) * sizeof(struct file)); | |
75b757ca | 1044 | |
f4a74fcb | 1045 | if (nfiles == NULL) |
d7e13484 | 1046 | return NULL; |
75b757ca | 1047 | |
f4a74fcb ACM |
1048 | if (ttrace->files.max != -1) { |
1049 | memset(nfiles + ttrace->files.max + 1, 0, | |
1050 | (fd - ttrace->files.max) * sizeof(struct file)); | |
75b757ca | 1051 | } else { |
f4a74fcb | 1052 | memset(nfiles, 0, (fd + 1) * sizeof(struct file)); |
75b757ca ACM |
1053 | } |
1054 | ||
f4a74fcb ACM |
1055 | ttrace->files.table = nfiles; |
1056 | ttrace->files.max = fd; | |
75b757ca ACM |
1057 | } |
1058 | ||
d7e13484 ACM |
1059 | return ttrace->files.table + fd; |
1060 | } | |
1061 | ||
2d473389 ACM |
1062 | struct file *thread__files_entry(struct thread *thread, int fd) |
1063 | { | |
1064 | return thread_trace__files_entry(thread__priv(thread), fd); | |
1065 | } | |
1066 | ||
d7e13484 ACM |
1067 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
1068 | { | |
1069 | struct thread_trace *ttrace = thread__priv(thread); | |
1070 | struct file *file = thread_trace__files_entry(ttrace, fd); | |
1071 | ||
1072 | if (file != NULL) { | |
4bcc4cff ACM |
1073 | struct stat st; |
1074 | if (stat(pathname, &st) == 0) | |
1075 | file->dev_maj = major(st.st_rdev); | |
d7e13484 ACM |
1076 | file->pathname = strdup(pathname); |
1077 | if (file->pathname) | |
1078 | return 0; | |
1079 | } | |
75b757ca | 1080 | |
d7e13484 | 1081 | return -1; |
75b757ca ACM |
1082 | } |
1083 | ||
97119f37 ACM |
1084 | static int thread__read_fd_path(struct thread *thread, int fd) |
1085 | { | |
1086 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
1087 | struct stat st; | |
1088 | int ret; | |
1089 | ||
1090 | if (thread->pid_ == thread->tid) { | |
1091 | scnprintf(linkname, sizeof(linkname), | |
1092 | "/proc/%d/fd/%d", thread->pid_, fd); | |
1093 | } else { | |
1094 | scnprintf(linkname, sizeof(linkname), | |
1095 | "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); | |
1096 | } | |
1097 | ||
1098 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
1099 | return -1; | |
1100 | ||
1101 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
1102 | ||
1103 | if (ret < 0 || ret > st.st_size) | |
1104 | return -1; | |
1105 | ||
1106 | pathname[ret] = '\0'; | |
1107 | return trace__set_fd_pathname(thread, fd, pathname); | |
1108 | } | |
1109 | ||
c522739d ACM |
1110 | static const char *thread__fd_path(struct thread *thread, int fd, |
1111 | struct trace *trace) | |
75b757ca | 1112 | { |
89dceb22 | 1113 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
1114 | |
1115 | if (ttrace == NULL) | |
1116 | return NULL; | |
1117 | ||
1118 | if (fd < 0) | |
1119 | return NULL; | |
1120 | ||
f4a74fcb | 1121 | if ((fd > ttrace->files.max || ttrace->files.table[fd].pathname == NULL)) { |
c522739d ACM |
1122 | if (!trace->live) |
1123 | return NULL; | |
1124 | ++trace->stats.proc_getname; | |
cdcd1e6b | 1125 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
1126 | return NULL; |
1127 | } | |
75b757ca | 1128 | |
f4a74fcb | 1129 | return ttrace->files.table[fd].pathname; |
75b757ca ACM |
1130 | } |
1131 | ||
fc65eb82 | 1132 | size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg) |
75b757ca ACM |
1133 | { |
1134 | int fd = arg->val; | |
1135 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 1136 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
1137 | |
1138 | if (path) | |
1139 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1140 | ||
1141 | return printed; | |
1142 | } | |
1143 | ||
0a2f7540 ACM |
1144 | size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size) |
1145 | { | |
1146 | size_t printed = scnprintf(bf, size, "%d", fd); | |
1147 | struct thread *thread = machine__find_thread(trace->host, pid, pid); | |
1148 | ||
1149 | if (thread) { | |
1150 | const char *path = thread__fd_path(thread, fd, trace); | |
1151 | ||
1152 | if (path) | |
1153 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1154 | ||
1155 | thread__put(thread); | |
1156 | } | |
1157 | ||
1158 | return printed; | |
1159 | } | |
1160 | ||
75b757ca ACM |
1161 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, |
1162 | struct syscall_arg *arg) | |
1163 | { | |
1164 | int fd = arg->val; | |
1165 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 1166 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 1167 | |
f4a74fcb ACM |
1168 | if (ttrace && fd >= 0 && fd <= ttrace->files.max) |
1169 | zfree(&ttrace->files.table[fd].pathname); | |
75b757ca ACM |
1170 | |
1171 | return printed; | |
1172 | } | |
1173 | ||
f994592d ACM |
1174 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1175 | unsigned long ptr) | |
1176 | { | |
1177 | struct thread_trace *ttrace = thread__priv(thread); | |
1178 | ||
1179 | ttrace->filename.ptr = ptr; | |
1180 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1181 | } | |
1182 | ||
75d1e306 ACM |
1183 | static size_t syscall_arg__scnprintf_augmented_string(struct syscall_arg *arg, char *bf, size_t size) |
1184 | { | |
1185 | struct augmented_arg *augmented_arg = arg->augmented.args; | |
1186 | ||
721f5326 | 1187 | return scnprintf(bf, size, "\"%.*s\"", augmented_arg->size, augmented_arg->value); |
75d1e306 ACM |
1188 | } |
1189 | ||
f994592d ACM |
1190 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
1191 | struct syscall_arg *arg) | |
1192 | { | |
1193 | unsigned long ptr = arg->val; | |
1194 | ||
75d1e306 ACM |
1195 | if (arg->augmented.args) |
1196 | return syscall_arg__scnprintf_augmented_string(arg, bf, size); | |
1197 | ||
f994592d ACM |
1198 | if (!arg->trace->vfs_getname) |
1199 | return scnprintf(bf, size, "%#x", ptr); | |
1200 | ||
1201 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1202 | return 0; | |
1203 | } | |
1204 | ||
ae9ed035 ACM |
1205 | static bool trace__filter_duration(struct trace *trace, double t) |
1206 | { | |
1207 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1208 | } | |
1209 | ||
fd2b2975 | 1210 | static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
752fde44 ACM |
1211 | { |
1212 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1213 | ||
60c907ab | 1214 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1215 | } |
1216 | ||
fd2b2975 ACM |
1217 | /* |
1218 | * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are | |
1219 | * using ttrace->entry_time for a thread that receives a sys_exit without | |
1220 | * first having received a sys_enter ("poll" issued before tracing session | |
1221 | * starts, lost sys_enter exit due to ring buffer overflow). | |
1222 | */ | |
1223 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) | |
1224 | { | |
1225 | if (tstamp > 0) | |
1226 | return __trace__fprintf_tstamp(trace, tstamp, fp); | |
1227 | ||
1228 | return fprintf(fp, " ? "); | |
1229 | } | |
1230 | ||
f15eb531 | 1231 | static bool done = false; |
ba209f85 | 1232 | static bool interrupted = false; |
f15eb531 | 1233 | |
ba209f85 | 1234 | static void sig_handler(int sig) |
f15eb531 NK |
1235 | { |
1236 | done = true; | |
ba209f85 | 1237 | interrupted = sig == SIGINT; |
f15eb531 NK |
1238 | } |
1239 | ||
6dcbd212 | 1240 | static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp) |
752fde44 | 1241 | { |
6dcbd212 | 1242 | size_t printed = 0; |
752fde44 | 1243 | |
50c95cbd ACM |
1244 | if (trace->multiple_threads) { |
1245 | if (trace->show_comm) | |
1902efe7 | 1246 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
38051234 | 1247 | printed += fprintf(fp, "%d ", thread->tid); |
50c95cbd | 1248 | } |
752fde44 ACM |
1249 | |
1250 | return printed; | |
1251 | } | |
1252 | ||
6dcbd212 ACM |
1253 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
1254 | u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) | |
1255 | { | |
b036146f ACM |
1256 | size_t printed = 0; |
1257 | ||
1258 | if (trace->show_tstamp) | |
1259 | printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
42e4a52d ACM |
1260 | if (trace->show_duration) |
1261 | printed += fprintf_duration(duration, duration_calculated, fp); | |
6dcbd212 ACM |
1262 | return printed + trace__fprintf_comm_tid(trace, thread, fp); |
1263 | } | |
1264 | ||
c24ff998 | 1265 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1266 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1267 | { |
1268 | int ret = 0; | |
1269 | ||
1270 | switch (event->header.type) { | |
1271 | case PERF_RECORD_LOST: | |
c24ff998 | 1272 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1273 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1274 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1275 | break; |
752fde44 | 1276 | default: |
162f0bef | 1277 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1278 | break; |
1279 | } | |
1280 | ||
1281 | return ret; | |
1282 | } | |
1283 | ||
c24ff998 | 1284 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1285 | union perf_event *event, |
162f0bef | 1286 | struct perf_sample *sample, |
752fde44 ACM |
1287 | struct machine *machine) |
1288 | { | |
c24ff998 | 1289 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1290 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1291 | } |
1292 | ||
caf8a0d0 ACM |
1293 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1294 | { | |
1295 | struct machine *machine = vmachine; | |
1296 | ||
1297 | if (machine->kptr_restrict_warned) | |
1298 | return NULL; | |
1299 | ||
1300 | if (symbol_conf.kptr_restrict) { | |
1301 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
1302 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
1303 | "Kernel samples will not be resolved.\n"); | |
1304 | machine->kptr_restrict_warned = true; | |
1305 | return NULL; | |
1306 | } | |
1307 | ||
1308 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1309 | } | |
1310 | ||
752fde44 ACM |
1311 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) |
1312 | { | |
0a7e6d1b | 1313 | int err = symbol__init(NULL); |
752fde44 ACM |
1314 | |
1315 | if (err) | |
1316 | return err; | |
1317 | ||
8fb598e5 DA |
1318 | trace->host = machine__new_host(); |
1319 | if (trace->host == NULL) | |
1320 | return -ENOMEM; | |
752fde44 | 1321 | |
cbd5c178 AV |
1322 | err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr); |
1323 | if (err < 0) | |
1324 | goto out; | |
706c3da4 | 1325 | |
a33fbd56 | 1326 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
9d9cad76 | 1327 | evlist->threads, trace__tool_process, false, |
3fcb10e4 | 1328 | 1); |
cbd5c178 | 1329 | out: |
752fde44 ACM |
1330 | if (err) |
1331 | symbol__exit(); | |
1332 | ||
1333 | return err; | |
1334 | } | |
1335 | ||
33974a41 AV |
1336 | static void trace__symbols__exit(struct trace *trace) |
1337 | { | |
1338 | machine__exit(trace->host); | |
1339 | trace->host = NULL; | |
1340 | ||
1341 | symbol__exit(); | |
1342 | } | |
1343 | ||
5e58fcfa | 1344 | static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args) |
13d4ff3e | 1345 | { |
5e58fcfa | 1346 | int idx; |
13d4ff3e | 1347 | |
332337da ACM |
1348 | if (nr_args == 6 && sc->fmt && sc->fmt->nr_args != 0) |
1349 | nr_args = sc->fmt->nr_args; | |
1350 | ||
5e58fcfa | 1351 | sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt)); |
82d4a110 | 1352 | if (sc->arg_fmt == NULL) |
13d4ff3e ACM |
1353 | return -1; |
1354 | ||
5e58fcfa ACM |
1355 | for (idx = 0; idx < nr_args; ++idx) { |
1356 | if (sc->fmt) | |
82d4a110 | 1357 | sc->arg_fmt[idx] = sc->fmt->arg[idx]; |
5e58fcfa | 1358 | } |
82d4a110 | 1359 | |
5e58fcfa ACM |
1360 | sc->nr_args = nr_args; |
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | static int syscall__set_arg_fmts(struct syscall *sc) | |
1365 | { | |
2c92f982 | 1366 | struct tep_format_field *field, *last_field = NULL; |
5e58fcfa ACM |
1367 | int idx = 0, len; |
1368 | ||
1369 | for (field = sc->args; field; field = field->next, ++idx) { | |
7a983a0f ACM |
1370 | last_field = field; |
1371 | ||
5e58fcfa ACM |
1372 | if (sc->fmt && sc->fmt->arg[idx].scnprintf) |
1373 | continue; | |
1f115cb7 | 1374 | |
82d4a110 | 1375 | if (strcmp(field->type, "const char *") == 0 && |
12f3ca4f ACM |
1376 | (strcmp(field->name, "filename") == 0 || |
1377 | strcmp(field->name, "path") == 0 || | |
1378 | strcmp(field->name, "pathname") == 0)) | |
82d4a110 | 1379 | sc->arg_fmt[idx].scnprintf = SCA_FILENAME; |
ce05539f ACM |
1380 | else if ((field->flags & TEP_FIELD_IS_POINTER) || strstr(field->name, "addr")) |
1381 | sc->arg_fmt[idx].scnprintf = SCA_PTR; | |
d1d438a3 | 1382 | else if (strcmp(field->type, "pid_t") == 0) |
82d4a110 | 1383 | sc->arg_fmt[idx].scnprintf = SCA_PID; |
ba2f22cf | 1384 | else if (strcmp(field->type, "umode_t") == 0) |
82d4a110 | 1385 | sc->arg_fmt[idx].scnprintf = SCA_MODE_T; |
b6565c90 ACM |
1386 | else if ((strcmp(field->type, "int") == 0 || |
1387 | strcmp(field->type, "unsigned int") == 0 || | |
1388 | strcmp(field->type, "long") == 0) && | |
1389 | (len = strlen(field->name)) >= 2 && | |
1390 | strcmp(field->name + len - 2, "fd") == 0) { | |
1391 | /* | |
1392 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
1393 | * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c | |
1394 | * 65 int | |
1395 | * 23 unsigned int | |
1396 | * 7 unsigned long | |
1397 | */ | |
82d4a110 | 1398 | sc->arg_fmt[idx].scnprintf = SCA_FD; |
b6565c90 | 1399 | } |
13d4ff3e ACM |
1400 | } |
1401 | ||
7a983a0f ACM |
1402 | if (last_field) |
1403 | sc->args_size = last_field->offset + last_field->size; | |
1404 | ||
13d4ff3e ACM |
1405 | return 0; |
1406 | } | |
1407 | ||
514f1c67 ACM |
1408 | static int trace__read_syscall_info(struct trace *trace, int id) |
1409 | { | |
1410 | char tp_name[128]; | |
1411 | struct syscall *sc; | |
fd0db102 | 1412 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 ACM |
1413 | |
1414 | if (name == NULL) | |
1415 | return -1; | |
514f1c67 ACM |
1416 | |
1417 | if (id > trace->syscalls.max) { | |
1418 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
1419 | ||
1420 | if (nsyscalls == NULL) | |
1421 | return -1; | |
1422 | ||
1423 | if (trace->syscalls.max != -1) { | |
1424 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
1425 | (id - trace->syscalls.max) * sizeof(*sc)); | |
1426 | } else { | |
1427 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
1428 | } | |
1429 | ||
1430 | trace->syscalls.table = nsyscalls; | |
1431 | trace->syscalls.max = id; | |
1432 | } | |
1433 | ||
1434 | sc = trace->syscalls.table + id; | |
3a531260 | 1435 | sc->name = name; |
2ae3a312 | 1436 | |
3a531260 | 1437 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1438 | |
aec1930b | 1439 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1440 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1441 | |
8dd2a131 | 1442 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1443 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1444 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1445 | } |
514f1c67 | 1446 | |
5e58fcfa ACM |
1447 | if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? 6 : sc->tp_format->format.nr_fields)) |
1448 | return -1; | |
1449 | ||
8dd2a131 | 1450 | if (IS_ERR(sc->tp_format)) |
13d4ff3e ACM |
1451 | return -1; |
1452 | ||
f208bd8d | 1453 | sc->args = sc->tp_format->format.fields; |
c42de706 TS |
1454 | /* |
1455 | * We need to check and discard the first variable '__syscall_nr' | |
1456 | * or 'nr' that mean the syscall number. It is needless here. | |
1457 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1458 | */ | |
1459 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1460 | sc->args = sc->args->next; |
1461 | --sc->nr_args; | |
1462 | } | |
1463 | ||
5089f20e | 1464 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
6a648b53 | 1465 | sc->is_open = !strcmp(name, "open") || !strcmp(name, "openat"); |
5089f20e | 1466 | |
13d4ff3e | 1467 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1468 | } |
1469 | ||
d0cc439b ACM |
1470 | static int trace__validate_ev_qualifier(struct trace *trace) |
1471 | { | |
8b3ce757 | 1472 | int err = 0, i; |
27702bcf | 1473 | size_t nr_allocated; |
d0cc439b ACM |
1474 | struct str_node *pos; |
1475 | ||
8b3ce757 ACM |
1476 | trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); |
1477 | trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr * | |
1478 | sizeof(trace->ev_qualifier_ids.entries[0])); | |
1479 | ||
1480 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1481 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1482 | trace->output); | |
1483 | err = -EINVAL; | |
1484 | goto out; | |
1485 | } | |
1486 | ||
27702bcf | 1487 | nr_allocated = trace->ev_qualifier_ids.nr; |
8b3ce757 ACM |
1488 | i = 0; |
1489 | ||
602a1f4d | 1490 | strlist__for_each_entry(pos, trace->ev_qualifier) { |
d0cc439b | 1491 | const char *sc = pos->s; |
27702bcf | 1492 | int id = syscalltbl__id(trace->sctbl, sc), match_next = -1; |
d0cc439b | 1493 | |
8b3ce757 | 1494 | if (id < 0) { |
27702bcf ACM |
1495 | id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next); |
1496 | if (id >= 0) | |
1497 | goto matches; | |
1498 | ||
d0cc439b ACM |
1499 | if (err == 0) { |
1500 | fputs("Error:\tInvalid syscall ", trace->output); | |
1501 | err = -EINVAL; | |
1502 | } else { | |
1503 | fputs(", ", trace->output); | |
1504 | } | |
1505 | ||
1506 | fputs(sc, trace->output); | |
1507 | } | |
27702bcf | 1508 | matches: |
8b3ce757 | 1509 | trace->ev_qualifier_ids.entries[i++] = id; |
27702bcf ACM |
1510 | if (match_next == -1) |
1511 | continue; | |
1512 | ||
1513 | while (1) { | |
1514 | id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); | |
1515 | if (id < 0) | |
1516 | break; | |
1517 | if (nr_allocated == trace->ev_qualifier_ids.nr) { | |
1518 | void *entries; | |
1519 | ||
1520 | nr_allocated += 8; | |
1521 | entries = realloc(trace->ev_qualifier_ids.entries, | |
1522 | nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0])); | |
1523 | if (entries == NULL) { | |
1524 | err = -ENOMEM; | |
1525 | fputs("\nError:\t Not enough memory for parsing\n", trace->output); | |
1526 | goto out_free; | |
1527 | } | |
1528 | trace->ev_qualifier_ids.entries = entries; | |
1529 | } | |
1530 | trace->ev_qualifier_ids.nr++; | |
1531 | trace->ev_qualifier_ids.entries[i++] = id; | |
1532 | } | |
d0cc439b ACM |
1533 | } |
1534 | ||
1535 | if (err < 0) { | |
1536 | fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" | |
1537 | "\nHint:\tand: 'man syscalls'\n", trace->output); | |
27702bcf | 1538 | out_free: |
8b3ce757 ACM |
1539 | zfree(&trace->ev_qualifier_ids.entries); |
1540 | trace->ev_qualifier_ids.nr = 0; | |
d0cc439b | 1541 | } |
8b3ce757 | 1542 | out: |
d0cc439b ACM |
1543 | return err; |
1544 | } | |
1545 | ||
55d43bca DA |
1546 | /* |
1547 | * args is to be interpreted as a series of longs but we need to handle | |
1548 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1549 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1550 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1551 | * variable to read it. Most notably this avoids extended load instructions | |
1552 | * on unaligned addresses | |
1553 | */ | |
325f5091 | 1554 | unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx) |
f9f83b33 ACM |
1555 | { |
1556 | unsigned long val; | |
325f5091 | 1557 | unsigned char *p = arg->args + sizeof(unsigned long) * idx; |
f9f83b33 ACM |
1558 | |
1559 | memcpy(&val, p, sizeof(val)); | |
1560 | return val; | |
1561 | } | |
1562 | ||
c51bdfec ACM |
1563 | static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size, |
1564 | struct syscall_arg *arg) | |
1565 | { | |
1566 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].name) | |
1567 | return scnprintf(bf, size, "%s: ", sc->arg_fmt[arg->idx].name); | |
1568 | ||
1569 | return scnprintf(bf, size, "arg%d: ", arg->idx); | |
1570 | } | |
1571 | ||
496fd346 ACM |
1572 | /* |
1573 | * Check if the value is in fact zero, i.e. mask whatever needs masking, such | |
1574 | * as mount 'flags' argument that needs ignoring some magic flag, see comment | |
1575 | * in tools/perf/trace/beauty/mount_flags.c | |
1576 | */ | |
1577 | static unsigned long syscall__mask_val(struct syscall *sc, struct syscall_arg *arg, unsigned long val) | |
1578 | { | |
1579 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].mask_val) | |
1580 | return sc->arg_fmt[arg->idx].mask_val(arg, val); | |
1581 | ||
1582 | return val; | |
1583 | } | |
1584 | ||
d032d79e ACM |
1585 | static size_t syscall__scnprintf_val(struct syscall *sc, char *bf, size_t size, |
1586 | struct syscall_arg *arg, unsigned long val) | |
1587 | { | |
1588 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].scnprintf) { | |
1589 | arg->val = val; | |
1590 | if (sc->arg_fmt[arg->idx].parm) | |
1591 | arg->parm = sc->arg_fmt[arg->idx].parm; | |
1592 | return sc->arg_fmt[arg->idx].scnprintf(bf, size, arg); | |
1593 | } | |
1594 | return scnprintf(bf, size, "%ld", val); | |
1595 | } | |
1596 | ||
752fde44 | 1597 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
7a983a0f ACM |
1598 | unsigned char *args, void *augmented_args, int augmented_args_size, |
1599 | struct trace *trace, struct thread *thread) | |
514f1c67 | 1600 | { |
514f1c67 | 1601 | size_t printed = 0; |
55d43bca | 1602 | unsigned long val; |
d032d79e ACM |
1603 | u8 bit = 1; |
1604 | struct syscall_arg arg = { | |
1605 | .args = args, | |
7a983a0f ACM |
1606 | .augmented = { |
1607 | .size = augmented_args_size, | |
1608 | .args = augmented_args, | |
1609 | }, | |
d032d79e ACM |
1610 | .idx = 0, |
1611 | .mask = 0, | |
1612 | .trace = trace, | |
1613 | .thread = thread, | |
c65c83ff | 1614 | .show_string_prefix = trace->show_string_prefix, |
d032d79e | 1615 | }; |
84486caa ACM |
1616 | struct thread_trace *ttrace = thread__priv(thread); |
1617 | ||
1618 | /* | |
1619 | * Things like fcntl will set this in its 'cmd' formatter to pick the | |
1620 | * right formatter for the return value (an fd? file flags?), which is | |
1621 | * not needed for syscalls that always return a given type, say an fd. | |
1622 | */ | |
1623 | ttrace->ret_scnprintf = NULL; | |
514f1c67 | 1624 | |
f208bd8d | 1625 | if (sc->args != NULL) { |
2c92f982 | 1626 | struct tep_format_field *field; |
6e7eeb51 | 1627 | |
f208bd8d | 1628 | for (field = sc->args; field; |
01533e97 ACM |
1629 | field = field->next, ++arg.idx, bit <<= 1) { |
1630 | if (arg.mask & bit) | |
6e7eeb51 | 1631 | continue; |
55d43bca | 1632 | |
f9f83b33 | 1633 | val = syscall_arg__val(&arg, arg.idx); |
496fd346 ACM |
1634 | /* |
1635 | * Some syscall args need some mask, most don't and | |
1636 | * return val untouched. | |
1637 | */ | |
1638 | val = syscall__mask_val(sc, &arg, val); | |
55d43bca | 1639 | |
4aa58232 ACM |
1640 | /* |
1641 | * Suppress this argument if its value is zero and | |
1642 | * and we don't have a string associated in an | |
1643 | * strarray for it. | |
1644 | */ | |
55d43bca | 1645 | if (val == 0 && |
e7c634fc | 1646 | !trace->show_zeros && |
82d4a110 | 1647 | !(sc->arg_fmt && |
d47737d5 ACM |
1648 | (sc->arg_fmt[arg.idx].show_zero || |
1649 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY || | |
82d4a110 ACM |
1650 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) && |
1651 | sc->arg_fmt[arg.idx].parm)) | |
22ae5cf1 ACM |
1652 | continue; |
1653 | ||
9d6dc178 ACM |
1654 | printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : ""); |
1655 | ||
1656 | if (trace->show_arg_names) | |
1657 | printed += scnprintf(bf + printed, size - printed, "%s: ", field->name); | |
1658 | ||
d032d79e | 1659 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
514f1c67 | 1660 | } |
4c4d6e51 ACM |
1661 | } else if (IS_ERR(sc->tp_format)) { |
1662 | /* | |
1663 | * If we managed to read the tracepoint /format file, then we | |
1664 | * may end up not having any args, like with gettid(), so only | |
1665 | * print the raw args when we didn't manage to read it. | |
1666 | */ | |
332337da | 1667 | while (arg.idx < sc->nr_args) { |
d032d79e ACM |
1668 | if (arg.mask & bit) |
1669 | goto next_arg; | |
1670 | val = syscall_arg__val(&arg, arg.idx); | |
c51bdfec ACM |
1671 | if (printed) |
1672 | printed += scnprintf(bf + printed, size - printed, ", "); | |
1673 | printed += syscall__scnprintf_name(sc, bf + printed, size - printed, &arg); | |
d032d79e ACM |
1674 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
1675 | next_arg: | |
1676 | ++arg.idx; | |
1677 | bit <<= 1; | |
514f1c67 ACM |
1678 | } |
1679 | } | |
1680 | ||
1681 | return printed; | |
1682 | } | |
1683 | ||
ba3d7dee | 1684 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1685 | union perf_event *event, |
ba3d7dee ACM |
1686 | struct perf_sample *sample); |
1687 | ||
1688 | static struct syscall *trace__syscall_info(struct trace *trace, | |
bf2575c1 | 1689 | struct perf_evsel *evsel, int id) |
ba3d7dee | 1690 | { |
ba3d7dee ACM |
1691 | |
1692 | if (id < 0) { | |
adaa18bf ACM |
1693 | |
1694 | /* | |
1695 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
1696 | * before that, leaving at a higher verbosity level till that is | |
1697 | * explained. Reproduced with plain ftrace with: | |
1698 | * | |
1699 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
1700 | * grep "NR -1 " /t/trace_pipe | |
1701 | * | |
1702 | * After generating some load on the machine. | |
1703 | */ | |
1704 | if (verbose > 1) { | |
1705 | static u64 n; | |
1706 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
1707 | id, perf_evsel__name(evsel), ++n); | |
1708 | } | |
ba3d7dee ACM |
1709 | return NULL; |
1710 | } | |
1711 | ||
1712 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
1713 | trace__read_syscall_info(trace, id)) | |
1714 | goto out_cant_read; | |
1715 | ||
1716 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
1717 | goto out_cant_read; | |
1718 | ||
1719 | return &trace->syscalls.table[id]; | |
1720 | ||
1721 | out_cant_read: | |
bb963e16 | 1722 | if (verbose > 0) { |
7c304ee0 ACM |
1723 | fprintf(trace->output, "Problems reading syscall %d", id); |
1724 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
1725 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
1726 | fputs(" information\n", trace->output); | |
1727 | } | |
ba3d7dee ACM |
1728 | return NULL; |
1729 | } | |
1730 | ||
bf2575c1 DA |
1731 | static void thread__update_stats(struct thread_trace *ttrace, |
1732 | int id, struct perf_sample *sample) | |
1733 | { | |
1734 | struct int_node *inode; | |
1735 | struct stats *stats; | |
1736 | u64 duration = 0; | |
1737 | ||
1738 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
1739 | if (inode == NULL) | |
1740 | return; | |
1741 | ||
1742 | stats = inode->priv; | |
1743 | if (stats == NULL) { | |
1744 | stats = malloc(sizeof(struct stats)); | |
1745 | if (stats == NULL) | |
1746 | return; | |
1747 | init_stats(stats); | |
1748 | inode->priv = stats; | |
1749 | } | |
1750 | ||
1751 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
1752 | duration = sample->time - ttrace->entry_time; | |
1753 | ||
1754 | update_stats(stats, duration); | |
1755 | } | |
1756 | ||
522283fe | 1757 | static int trace__printf_interrupted_entry(struct trace *trace) |
e596663e ACM |
1758 | { |
1759 | struct thread_trace *ttrace; | |
e596663e | 1760 | size_t printed; |
172bf02d | 1761 | int len; |
e596663e | 1762 | |
0a6545bd | 1763 | if (trace->failure_only || trace->current == NULL) |
e596663e ACM |
1764 | return 0; |
1765 | ||
1766 | ttrace = thread__priv(trace->current); | |
1767 | ||
1768 | if (!ttrace->entry_pending) | |
1769 | return 0; | |
1770 | ||
522283fe | 1771 | printed = trace__fprintf_entry_head(trace, trace->current, 0, false, ttrace->entry_time, trace->output); |
172bf02d ACM |
1772 | printed += len = fprintf(trace->output, "%s)", ttrace->entry_str); |
1773 | ||
1774 | if (len < trace->args_alignment - 4) | |
1775 | printed += fprintf(trace->output, "%-*s", trace->args_alignment - 4 - len, " "); | |
e596663e | 1776 | |
172bf02d ACM |
1777 | printed += fprintf(trace->output, " ...\n"); |
1778 | ||
1779 | ttrace->entry_pending = false; | |
5067a8cd ACM |
1780 | ++trace->nr_events_printed; |
1781 | ||
e596663e ACM |
1782 | return printed; |
1783 | } | |
1784 | ||
591421e1 ACM |
1785 | static int trace__fprintf_sample(struct trace *trace, struct perf_evsel *evsel, |
1786 | struct perf_sample *sample, struct thread *thread) | |
1787 | { | |
1788 | int printed = 0; | |
1789 | ||
1790 | if (trace->print_sample) { | |
1791 | double ts = (double)sample->time / NSEC_PER_MSEC; | |
1792 | ||
1793 | printed += fprintf(trace->output, "%22s %10.3f %s %d/%d [%d]\n", | |
1794 | perf_evsel__name(evsel), ts, | |
1795 | thread__comm_str(thread), | |
1796 | sample->pid, sample->tid, sample->cpu); | |
1797 | } | |
1798 | ||
1799 | return printed; | |
1800 | } | |
1801 | ||
b9b6a2ea | 1802 | static void *syscall__augmented_args(struct syscall *sc, struct perf_sample *sample, int *augmented_args_size, int raw_augmented_args_size) |
8a041f86 ACM |
1803 | { |
1804 | void *augmented_args = NULL; | |
cd26ea6d ACM |
1805 | /* |
1806 | * For now with BPF raw_augmented we hook into raw_syscalls:sys_enter | |
b9b6a2ea ACM |
1807 | * and there we get all 6 syscall args plus the tracepoint common fields |
1808 | * that gets calculated at the start and the syscall_nr (another long). | |
1809 | * So we check if that is the case and if so don't look after the | |
1810 | * sc->args_size but always after the full raw_syscalls:sys_enter payload, | |
1811 | * which is fixed. | |
cd26ea6d ACM |
1812 | * |
1813 | * We'll revisit this later to pass s->args_size to the BPF augmenter | |
1814 | * (now tools/perf/examples/bpf/augmented_raw_syscalls.c, so that it | |
1815 | * copies only what we need for each syscall, like what happens when we | |
1816 | * use syscalls:sys_enter_NAME, so that we reduce the kernel/userspace | |
1817 | * traffic to just what is needed for each syscall. | |
1818 | */ | |
b9b6a2ea | 1819 | int args_size = raw_augmented_args_size ?: sc->args_size; |
8a041f86 | 1820 | |
cd26ea6d | 1821 | *augmented_args_size = sample->raw_size - args_size; |
8a041f86 | 1822 | if (*augmented_args_size > 0) |
cd26ea6d | 1823 | augmented_args = sample->raw_data + args_size; |
8a041f86 ACM |
1824 | |
1825 | return augmented_args; | |
1826 | } | |
1827 | ||
ba3d7dee | 1828 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1829 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1830 | struct perf_sample *sample) |
1831 | { | |
752fde44 | 1832 | char *msg; |
ba3d7dee | 1833 | void *args; |
4b8a240e | 1834 | int printed = 0; |
2ae3a312 | 1835 | struct thread *thread; |
b91fc39f | 1836 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
db2da3f8 ACM |
1837 | int augmented_args_size = 0; |
1838 | void *augmented_args = NULL; | |
bf2575c1 | 1839 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1840 | struct thread_trace *ttrace; |
1841 | ||
1842 | if (sc == NULL) | |
1843 | return -1; | |
ba3d7dee | 1844 | |
8fb598e5 | 1845 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1846 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1847 | if (ttrace == NULL) |
b91fc39f | 1848 | goto out_put; |
ba3d7dee | 1849 | |
591421e1 ACM |
1850 | trace__fprintf_sample(trace, evsel, sample, thread); |
1851 | ||
77170988 | 1852 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
1853 | |
1854 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 1855 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 1856 | if (!ttrace->entry_str) |
b91fc39f | 1857 | goto out_put; |
752fde44 ACM |
1858 | } |
1859 | ||
5cf9c84e | 1860 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
522283fe | 1861 | trace__printf_interrupted_entry(trace); |
db2da3f8 ACM |
1862 | /* |
1863 | * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible | |
1864 | * arguments, even if the syscall being handled, say "openat", uses only 4 arguments | |
1865 | * this breaks syscall__augmented_args() check for augmented args, as we calculate | |
1866 | * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file, | |
1867 | * so when handling, say the openat syscall, we end up getting 6 args for the | |
1868 | * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly | |
1869 | * thinking that the extra 2 u64 args are the augmented filename, so just check | |
1870 | * here and avoid using augmented syscalls when the evsel is the raw_syscalls one. | |
1871 | */ | |
1872 | if (evsel != trace->syscalls.events.sys_enter) | |
b9b6a2ea | 1873 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
752fde44 ACM |
1874 | ttrace->entry_time = sample->time; |
1875 | msg = ttrace->entry_str; | |
e4d44e83 | 1876 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 1877 | |
e4d44e83 | 1878 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
db2da3f8 | 1879 | args, augmented_args, augmented_args_size, trace, thread); |
752fde44 | 1880 | |
5089f20e | 1881 | if (sc->is_exit) { |
0a6545bd | 1882 | if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) { |
4b8a240e ACM |
1883 | int alignment = 0; |
1884 | ||
fd2b2975 | 1885 | trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output); |
4b8a240e ACM |
1886 | printed = fprintf(trace->output, "%s)", ttrace->entry_str); |
1887 | if (trace->args_alignment > printed) | |
1888 | alignment = trace->args_alignment - printed; | |
1889 | fprintf(trace->output, "%*s= ?\n", alignment, " "); | |
ae9ed035 | 1890 | } |
7f4f8001 | 1891 | } else { |
752fde44 | 1892 | ttrace->entry_pending = true; |
7f4f8001 ACM |
1893 | /* See trace__vfs_getname & trace__sys_exit */ |
1894 | ttrace->filename.pending_open = false; | |
1895 | } | |
ba3d7dee | 1896 | |
f3b623b8 ACM |
1897 | if (trace->current != thread) { |
1898 | thread__put(trace->current); | |
1899 | trace->current = thread__get(thread); | |
1900 | } | |
b91fc39f ACM |
1901 | err = 0; |
1902 | out_put: | |
1903 | thread__put(thread); | |
1904 | return err; | |
ba3d7dee ACM |
1905 | } |
1906 | ||
a98392bb ACM |
1907 | static int trace__fprintf_sys_enter(struct trace *trace, struct perf_evsel *evsel, |
1908 | struct perf_sample *sample) | |
1909 | { | |
a98392bb ACM |
1910 | struct thread_trace *ttrace; |
1911 | struct thread *thread; | |
f3acd886 ACM |
1912 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
1913 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
a98392bb | 1914 | char msg[1024]; |
7a983a0f ACM |
1915 | void *args, *augmented_args = NULL; |
1916 | int augmented_args_size; | |
a98392bb | 1917 | |
a98392bb ACM |
1918 | if (sc == NULL) |
1919 | return -1; | |
1920 | ||
1921 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1922 | ttrace = thread__trace(thread, trace->output); | |
1923 | /* | |
1924 | * We need to get ttrace just to make sure it is there when syscall__scnprintf_args() | |
1925 | * and the rest of the beautifiers accessing it via struct syscall_arg touches it. | |
1926 | */ | |
1927 | if (ttrace == NULL) | |
1928 | goto out_put; | |
1929 | ||
f3acd886 | 1930 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
b9b6a2ea | 1931 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
7a983a0f | 1932 | syscall__scnprintf_args(sc, msg, sizeof(msg), args, augmented_args, augmented_args_size, trace, thread); |
a98392bb ACM |
1933 | fprintf(trace->output, "%s", msg); |
1934 | err = 0; | |
1935 | out_put: | |
1936 | thread__put(thread); | |
1937 | return err; | |
1938 | } | |
1939 | ||
5cf9c84e ACM |
1940 | static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evsel, |
1941 | struct perf_sample *sample, | |
1942 | struct callchain_cursor *cursor) | |
202ff968 ACM |
1943 | { |
1944 | struct addr_location al; | |
3a9e9a47 RB |
1945 | int max_stack = evsel->attr.sample_max_stack ? |
1946 | evsel->attr.sample_max_stack : | |
1947 | trace->max_stack; | |
4291bf5c | 1948 | int err; |
5cf9c84e | 1949 | |
4291bf5c | 1950 | if (machine__resolve(trace->host, &al, sample) < 0) |
5cf9c84e ACM |
1951 | return -1; |
1952 | ||
4291bf5c ACM |
1953 | err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack); |
1954 | addr_location__put(&al); | |
1955 | return err; | |
5cf9c84e ACM |
1956 | } |
1957 | ||
1958 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
1959 | { | |
202ff968 | 1960 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
1961 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
1962 | EVSEL__PRINT_DSO | | |
1963 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 1964 | |
d327e60c | 1965 | return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output); |
202ff968 ACM |
1966 | } |
1967 | ||
092bd3cd HB |
1968 | static const char *errno_to_name(struct perf_evsel *evsel, int err) |
1969 | { | |
1970 | struct perf_env *env = perf_evsel__env(evsel); | |
1971 | const char *arch_name = perf_env__arch(env); | |
1972 | ||
1973 | return arch_syscalls__strerrno(arch_name, err); | |
1974 | } | |
1975 | ||
ba3d7dee | 1976 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1977 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1978 | struct perf_sample *sample) |
1979 | { | |
2c82c3ad | 1980 | long ret; |
60c907ab | 1981 | u64 duration = 0; |
fd2b2975 | 1982 | bool duration_calculated = false; |
2ae3a312 | 1983 | struct thread *thread; |
4b8a240e ACM |
1984 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0, printed = 0; |
1985 | int alignment = trace->args_alignment; | |
bf2575c1 | 1986 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1987 | struct thread_trace *ttrace; |
1988 | ||
1989 | if (sc == NULL) | |
1990 | return -1; | |
ba3d7dee | 1991 | |
8fb598e5 | 1992 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1993 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1994 | if (ttrace == NULL) |
b91fc39f | 1995 | goto out_put; |
ba3d7dee | 1996 | |
591421e1 ACM |
1997 | trace__fprintf_sample(trace, evsel, sample, thread); |
1998 | ||
bf2575c1 DA |
1999 | if (trace->summary) |
2000 | thread__update_stats(ttrace, id, sample); | |
2001 | ||
77170988 | 2002 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 2003 | |
6a648b53 | 2004 | if (sc->is_open && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
2005 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
2006 | ttrace->filename.pending_open = false; | |
c522739d ACM |
2007 | ++trace->stats.vfs_getname; |
2008 | } | |
2009 | ||
ae9ed035 | 2010 | if (ttrace->entry_time) { |
60c907ab | 2011 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
2012 | if (trace__filter_duration(trace, duration)) |
2013 | goto out; | |
fd2b2975 | 2014 | duration_calculated = true; |
ae9ed035 ACM |
2015 | } else if (trace->duration_filter) |
2016 | goto out; | |
60c907ab | 2017 | |
5cf9c84e ACM |
2018 | if (sample->callchain) { |
2019 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2020 | if (callchain_ret == 0) { | |
2021 | if (callchain_cursor.nr < trace->min_stack) | |
2022 | goto out; | |
2023 | callchain_ret = 1; | |
2024 | } | |
2025 | } | |
2026 | ||
0a6545bd | 2027 | if (trace->summary_only || (ret >= 0 && trace->failure_only)) |
fd2eabaf DA |
2028 | goto out; |
2029 | ||
fd2b2975 | 2030 | trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output); |
752fde44 ACM |
2031 | |
2032 | if (ttrace->entry_pending) { | |
4b8a240e | 2033 | printed = fprintf(trace->output, "%s", ttrace->entry_str); |
752fde44 | 2034 | } else { |
ac6e022c | 2035 | printed += fprintf(trace->output, " ... ["); |
c24ff998 | 2036 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); |
ac6e022c ACM |
2037 | printed += 9; |
2038 | printed += fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
2039 | } |
2040 | ||
4b8a240e ACM |
2041 | printed++; /* the closing ')' */ |
2042 | ||
2043 | if (alignment > printed) | |
2044 | alignment -= printed; | |
2045 | else | |
2046 | alignment = 0; | |
2047 | ||
2048 | fprintf(trace->output, ")%*s= ", alignment, " "); | |
2049 | ||
da3c9a44 | 2050 | if (sc->fmt == NULL) { |
1f63139c ACM |
2051 | if (ret < 0) |
2052 | goto errno_print; | |
da3c9a44 | 2053 | signed_print: |
4b8a240e | 2054 | fprintf(trace->output, "%ld", ret); |
1f63139c ACM |
2055 | } else if (ret < 0) { |
2056 | errno_print: { | |
942a91ed | 2057 | char bf[STRERR_BUFSIZE]; |
c8b5f2c9 | 2058 | const char *emsg = str_error_r(-ret, bf, sizeof(bf)), |
092bd3cd | 2059 | *e = errno_to_name(evsel, -ret); |
ba3d7dee | 2060 | |
2c83dfae | 2061 | fprintf(trace->output, "-1 %s (%s)", e, emsg); |
1f63139c | 2062 | } |
da3c9a44 | 2063 | } else if (ret == 0 && sc->fmt->timeout) |
2c83dfae | 2064 | fprintf(trace->output, "0 (Timeout)"); |
84486caa ACM |
2065 | else if (ttrace->ret_scnprintf) { |
2066 | char bf[1024]; | |
7ee57434 ACM |
2067 | struct syscall_arg arg = { |
2068 | .val = ret, | |
2069 | .thread = thread, | |
2070 | .trace = trace, | |
2071 | }; | |
2072 | ttrace->ret_scnprintf(bf, sizeof(bf), &arg); | |
84486caa | 2073 | ttrace->ret_scnprintf = NULL; |
4b8a240e | 2074 | fprintf(trace->output, "%s", bf); |
84486caa | 2075 | } else if (sc->fmt->hexret) |
4b8a240e | 2076 | fprintf(trace->output, "%#lx", ret); |
11c8e39f ACM |
2077 | else if (sc->fmt->errpid) { |
2078 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
2079 | ||
2080 | if (child != NULL) { | |
4b8a240e | 2081 | fprintf(trace->output, "%ld", ret); |
11c8e39f ACM |
2082 | if (child->comm_set) |
2083 | fprintf(trace->output, " (%s)", thread__comm_str(child)); | |
2084 | thread__put(child); | |
2085 | } | |
2086 | } else | |
da3c9a44 | 2087 | goto signed_print; |
ba3d7dee | 2088 | |
c24ff998 | 2089 | fputc('\n', trace->output); |
566a0885 | 2090 | |
5067a8cd ACM |
2091 | /* |
2092 | * We only consider an 'event' for the sake of --max-events a non-filtered | |
2093 | * sys_enter + sys_exit and other tracepoint events. | |
2094 | */ | |
2095 | if (++trace->nr_events_printed == trace->max_events && trace->max_events != ULONG_MAX) | |
2096 | interrupted = true; | |
2097 | ||
5cf9c84e ACM |
2098 | if (callchain_ret > 0) |
2099 | trace__fprintf_callchain(trace, sample); | |
2100 | else if (callchain_ret < 0) | |
2101 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
ae9ed035 | 2102 | out: |
752fde44 | 2103 | ttrace->entry_pending = false; |
b91fc39f ACM |
2104 | err = 0; |
2105 | out_put: | |
2106 | thread__put(thread); | |
2107 | return err; | |
ba3d7dee ACM |
2108 | } |
2109 | ||
c522739d | 2110 | static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 2111 | union perf_event *event __maybe_unused, |
c522739d ACM |
2112 | struct perf_sample *sample) |
2113 | { | |
f994592d ACM |
2114 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2115 | struct thread_trace *ttrace; | |
2116 | size_t filename_len, entry_str_len, to_move; | |
2117 | ssize_t remaining_space; | |
2118 | char *pos; | |
7f4f8001 | 2119 | const char *filename = perf_evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
2120 | |
2121 | if (!thread) | |
2122 | goto out; | |
2123 | ||
2124 | ttrace = thread__priv(thread); | |
2125 | if (!ttrace) | |
ef65e96e | 2126 | goto out_put; |
f994592d | 2127 | |
7f4f8001 | 2128 | filename_len = strlen(filename); |
39f0e7a8 | 2129 | if (filename_len == 0) |
ef65e96e | 2130 | goto out_put; |
7f4f8001 ACM |
2131 | |
2132 | if (ttrace->filename.namelen < filename_len) { | |
2133 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
2134 | ||
2135 | if (f == NULL) | |
ef65e96e | 2136 | goto out_put; |
7f4f8001 ACM |
2137 | |
2138 | ttrace->filename.namelen = filename_len; | |
2139 | ttrace->filename.name = f; | |
2140 | } | |
2141 | ||
2142 | strcpy(ttrace->filename.name, filename); | |
2143 | ttrace->filename.pending_open = true; | |
2144 | ||
f994592d | 2145 | if (!ttrace->filename.ptr) |
ef65e96e | 2146 | goto out_put; |
f994592d ACM |
2147 | |
2148 | entry_str_len = strlen(ttrace->entry_str); | |
2149 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
2150 | if (remaining_space <= 0) | |
ef65e96e | 2151 | goto out_put; |
f994592d | 2152 | |
f994592d ACM |
2153 | if (filename_len > (size_t)remaining_space) { |
2154 | filename += filename_len - remaining_space; | |
2155 | filename_len = remaining_space; | |
2156 | } | |
2157 | ||
2158 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
2159 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
2160 | memmove(pos + filename_len, pos, to_move); | |
2161 | memcpy(pos, filename, filename_len); | |
2162 | ||
2163 | ttrace->filename.ptr = 0; | |
2164 | ttrace->filename.entry_str_pos = 0; | |
ef65e96e ACM |
2165 | out_put: |
2166 | thread__put(thread); | |
f994592d | 2167 | out: |
c522739d ACM |
2168 | return 0; |
2169 | } | |
2170 | ||
1302d88e | 2171 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 2172 | union perf_event *event __maybe_unused, |
1302d88e ACM |
2173 | struct perf_sample *sample) |
2174 | { | |
2175 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
2176 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
8fb598e5 | 2177 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
2178 | sample->pid, |
2179 | sample->tid); | |
c24ff998 | 2180 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
2181 | |
2182 | if (ttrace == NULL) | |
2183 | goto out_dump; | |
2184 | ||
2185 | ttrace->runtime_ms += runtime_ms; | |
2186 | trace->runtime_ms += runtime_ms; | |
ef65e96e | 2187 | out_put: |
b91fc39f | 2188 | thread__put(thread); |
1302d88e ACM |
2189 | return 0; |
2190 | ||
2191 | out_dump: | |
c24ff998 | 2192 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
2193 | evsel->name, |
2194 | perf_evsel__strval(evsel, sample, "comm"), | |
2195 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
2196 | runtime, | |
2197 | perf_evsel__intval(evsel, sample, "vruntime")); | |
ef65e96e | 2198 | goto out_put; |
1302d88e ACM |
2199 | } |
2200 | ||
923d0c9a ACM |
2201 | static int bpf_output__printer(enum binary_printer_ops op, |
2202 | unsigned int val, void *extra __maybe_unused, FILE *fp) | |
1d6c9407 | 2203 | { |
1d6c9407 WN |
2204 | unsigned char ch = (unsigned char)val; |
2205 | ||
2206 | switch (op) { | |
2207 | case BINARY_PRINT_CHAR_DATA: | |
923d0c9a | 2208 | return fprintf(fp, "%c", isprint(ch) ? ch : '.'); |
1d6c9407 WN |
2209 | case BINARY_PRINT_DATA_BEGIN: |
2210 | case BINARY_PRINT_LINE_BEGIN: | |
2211 | case BINARY_PRINT_ADDR: | |
2212 | case BINARY_PRINT_NUM_DATA: | |
2213 | case BINARY_PRINT_NUM_PAD: | |
2214 | case BINARY_PRINT_SEP: | |
2215 | case BINARY_PRINT_CHAR_PAD: | |
2216 | case BINARY_PRINT_LINE_END: | |
2217 | case BINARY_PRINT_DATA_END: | |
2218 | default: | |
2219 | break; | |
2220 | } | |
923d0c9a ACM |
2221 | |
2222 | return 0; | |
1d6c9407 WN |
2223 | } |
2224 | ||
2225 | static void bpf_output__fprintf(struct trace *trace, | |
2226 | struct perf_sample *sample) | |
2227 | { | |
923d0c9a ACM |
2228 | binary__fprintf(sample->raw_data, sample->raw_size, 8, |
2229 | bpf_output__printer, NULL, trace->output); | |
5067a8cd | 2230 | ++trace->nr_events_printed; |
1d6c9407 WN |
2231 | } |
2232 | ||
14a052df ACM |
2233 | static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel, |
2234 | union perf_event *event __maybe_unused, | |
2235 | struct perf_sample *sample) | |
2236 | { | |
a9c5e6c1 | 2237 | struct thread *thread; |
7ad35615 | 2238 | int callchain_ret = 0; |
a9c5e6c1 ACM |
2239 | /* |
2240 | * Check if we called perf_evsel__disable(evsel) due to, for instance, | |
2241 | * this event's max_events having been hit and this is an entry coming | |
2242 | * from the ring buffer that we should discard, since the max events | |
2243 | * have already been considered/printed. | |
2244 | */ | |
2245 | if (evsel->disabled) | |
2246 | return 0; | |
2247 | ||
2248 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
7ad35615 ACM |
2249 | |
2250 | if (sample->callchain) { | |
2251 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2252 | if (callchain_ret == 0) { | |
2253 | if (callchain_cursor.nr < trace->min_stack) | |
2254 | goto out; | |
2255 | callchain_ret = 1; | |
2256 | } | |
2257 | } | |
2258 | ||
522283fe | 2259 | trace__printf_interrupted_entry(trace); |
14a052df | 2260 | trace__fprintf_tstamp(trace, sample->time, trace->output); |
0808921a | 2261 | |
42e4a52d | 2262 | if (trace->trace_syscalls && trace->show_duration) |
0808921a ACM |
2263 | fprintf(trace->output, "( ): "); |
2264 | ||
c4191e55 ACM |
2265 | if (thread) |
2266 | trace__fprintf_comm_tid(trace, thread, trace->output); | |
2267 | ||
1cdf618f ACM |
2268 | if (evsel == trace->syscalls.events.augmented) { |
2269 | int id = perf_evsel__sc_tp_uint(evsel, id, sample); | |
2270 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
2271 | ||
2272 | if (sc) { | |
c4191e55 ACM |
2273 | fprintf(trace->output, "%s(", sc->name); |
2274 | trace__fprintf_sys_enter(trace, evsel, sample); | |
2275 | fputc(')', trace->output); | |
2276 | goto newline; | |
1cdf618f ACM |
2277 | } |
2278 | ||
2279 | /* | |
2280 | * XXX: Not having the associated syscall info or not finding/adding | |
2281 | * the thread should never happen, but if it does... | |
2282 | * fall thru and print it as a bpf_output event. | |
2283 | */ | |
2284 | } | |
2285 | ||
0808921a | 2286 | fprintf(trace->output, "%s:", evsel->name); |
14a052df | 2287 | |
1d6c9407 | 2288 | if (perf_evsel__is_bpf_output(evsel)) { |
1cdf618f | 2289 | bpf_output__fprintf(trace, sample); |
1d6c9407 | 2290 | } else if (evsel->tp_format) { |
a98392bb ACM |
2291 | if (strncmp(evsel->tp_format->name, "sys_enter_", 10) || |
2292 | trace__fprintf_sys_enter(trace, evsel, sample)) { | |
2293 | event_format__fprintf(evsel->tp_format, sample->cpu, | |
2294 | sample->raw_data, sample->raw_size, | |
2295 | trace->output); | |
5067a8cd | 2296 | ++trace->nr_events_printed; |
a9c5e6c1 ACM |
2297 | |
2298 | if (evsel->max_events != ULONG_MAX && ++evsel->nr_events_printed == evsel->max_events) { | |
2299 | perf_evsel__disable(evsel); | |
2300 | perf_evsel__close(evsel); | |
2301 | } | |
a98392bb | 2302 | } |
14a052df ACM |
2303 | } |
2304 | ||
1cdf618f | 2305 | newline: |
51125a29 | 2306 | fprintf(trace->output, "\n"); |
202ff968 | 2307 | |
7ad35615 ACM |
2308 | if (callchain_ret > 0) |
2309 | trace__fprintf_callchain(trace, sample); | |
2310 | else if (callchain_ret < 0) | |
2311 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
2312 | out: | |
a937c665 | 2313 | thread__put(thread); |
14a052df ACM |
2314 | return 0; |
2315 | } | |
2316 | ||
598d02c5 SF |
2317 | static void print_location(FILE *f, struct perf_sample *sample, |
2318 | struct addr_location *al, | |
2319 | bool print_dso, bool print_sym) | |
2320 | { | |
2321 | ||
bb963e16 | 2322 | if ((verbose > 0 || print_dso) && al->map) |
598d02c5 SF |
2323 | fprintf(f, "%s@", al->map->dso->long_name); |
2324 | ||
bb963e16 | 2325 | if ((verbose > 0 || print_sym) && al->sym) |
4414a3c5 | 2326 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
2327 | al->addr - al->sym->start); |
2328 | else if (al->map) | |
4414a3c5 | 2329 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 2330 | else |
4414a3c5 | 2331 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
2332 | } |
2333 | ||
2334 | static int trace__pgfault(struct trace *trace, | |
2335 | struct perf_evsel *evsel, | |
473398a2 | 2336 | union perf_event *event __maybe_unused, |
598d02c5 SF |
2337 | struct perf_sample *sample) |
2338 | { | |
2339 | struct thread *thread; | |
598d02c5 SF |
2340 | struct addr_location al; |
2341 | char map_type = 'd'; | |
a2ea67d7 | 2342 | struct thread_trace *ttrace; |
b91fc39f | 2343 | int err = -1; |
1df54290 | 2344 | int callchain_ret = 0; |
598d02c5 SF |
2345 | |
2346 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1df54290 ACM |
2347 | |
2348 | if (sample->callchain) { | |
2349 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2350 | if (callchain_ret == 0) { | |
2351 | if (callchain_cursor.nr < trace->min_stack) | |
2352 | goto out_put; | |
2353 | callchain_ret = 1; | |
2354 | } | |
2355 | } | |
2356 | ||
a2ea67d7 SF |
2357 | ttrace = thread__trace(thread, trace->output); |
2358 | if (ttrace == NULL) | |
b91fc39f | 2359 | goto out_put; |
a2ea67d7 SF |
2360 | |
2361 | if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) | |
2362 | ttrace->pfmaj++; | |
2363 | else | |
2364 | ttrace->pfmin++; | |
2365 | ||
2366 | if (trace->summary_only) | |
b91fc39f | 2367 | goto out; |
598d02c5 | 2368 | |
4546263d | 2369 | thread__find_symbol(thread, sample->cpumode, sample->ip, &al); |
598d02c5 | 2370 | |
fd2b2975 | 2371 | trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output); |
598d02c5 SF |
2372 | |
2373 | fprintf(trace->output, "%sfault [", | |
2374 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? | |
2375 | "maj" : "min"); | |
2376 | ||
2377 | print_location(trace->output, sample, &al, false, true); | |
2378 | ||
2379 | fprintf(trace->output, "] => "); | |
2380 | ||
117d3c24 | 2381 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2382 | |
2383 | if (!al.map) { | |
4546263d | 2384 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2385 | |
2386 | if (al.map) | |
2387 | map_type = 'x'; | |
2388 | else | |
2389 | map_type = '?'; | |
2390 | } | |
2391 | ||
2392 | print_location(trace->output, sample, &al, true, false); | |
2393 | ||
2394 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 2395 | |
1df54290 ACM |
2396 | if (callchain_ret > 0) |
2397 | trace__fprintf_callchain(trace, sample); | |
2398 | else if (callchain_ret < 0) | |
2399 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
5067a8cd ACM |
2400 | |
2401 | ++trace->nr_events_printed; | |
b91fc39f ACM |
2402 | out: |
2403 | err = 0; | |
2404 | out_put: | |
2405 | thread__put(thread); | |
2406 | return err; | |
598d02c5 SF |
2407 | } |
2408 | ||
e6001980 | 2409 | static void trace__set_base_time(struct trace *trace, |
8a07a809 | 2410 | struct perf_evsel *evsel, |
e6001980 ACM |
2411 | struct perf_sample *sample) |
2412 | { | |
8a07a809 ACM |
2413 | /* |
2414 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
2415 | * and don't use sample->time unconditionally, we may end up having | |
2416 | * some other event in the future without PERF_SAMPLE_TIME for good | |
2417 | * reason, i.e. we may not be interested in its timestamps, just in | |
2418 | * it taking place, picking some piece of information when it | |
2419 | * appears in our event stream (vfs_getname comes to mind). | |
2420 | */ | |
2421 | if (trace->base_time == 0 && !trace->full_time && | |
2422 | (evsel->attr.sample_type & PERF_SAMPLE_TIME)) | |
e6001980 ACM |
2423 | trace->base_time = sample->time; |
2424 | } | |
2425 | ||
6810fc91 | 2426 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 2427 | union perf_event *event, |
6810fc91 DA |
2428 | struct perf_sample *sample, |
2429 | struct perf_evsel *evsel, | |
2430 | struct machine *machine __maybe_unused) | |
2431 | { | |
2432 | struct trace *trace = container_of(tool, struct trace, tool); | |
aa07df6e | 2433 | struct thread *thread; |
6810fc91 DA |
2434 | int err = 0; |
2435 | ||
744a9719 | 2436 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 2437 | |
aa07df6e DA |
2438 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2439 | if (thread && thread__is_filtered(thread)) | |
ef65e96e | 2440 | goto out; |
bdc89661 | 2441 | |
e6001980 | 2442 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 2443 | |
3160565f DA |
2444 | if (handler) { |
2445 | ++trace->nr_events; | |
0c82adcf | 2446 | handler(trace, evsel, event, sample); |
3160565f | 2447 | } |
ef65e96e ACM |
2448 | out: |
2449 | thread__put(thread); | |
6810fc91 DA |
2450 | return err; |
2451 | } | |
2452 | ||
1e28fe0a | 2453 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
2454 | { |
2455 | unsigned int rec_argc, i, j; | |
2456 | const char **rec_argv; | |
2457 | const char * const record_args[] = { | |
2458 | "record", | |
2459 | "-R", | |
2460 | "-m", "1024", | |
2461 | "-c", "1", | |
5e2485b1 DA |
2462 | }; |
2463 | ||
1e28fe0a SF |
2464 | const char * const sc_args[] = { "-e", }; |
2465 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
2466 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
2467 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
2468 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
2469 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
2470 | ||
9aca7f17 | 2471 | /* +1 is for the event string below */ |
1e28fe0a SF |
2472 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + |
2473 | majpf_args_nr + minpf_args_nr + argc; | |
5e2485b1 DA |
2474 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
2475 | ||
2476 | if (rec_argv == NULL) | |
2477 | return -ENOMEM; | |
2478 | ||
1e28fe0a | 2479 | j = 0; |
5e2485b1 | 2480 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
2481 | rec_argv[j++] = record_args[i]; |
2482 | ||
e281a960 SF |
2483 | if (trace->trace_syscalls) { |
2484 | for (i = 0; i < sc_args_nr; i++) | |
2485 | rec_argv[j++] = sc_args[i]; | |
2486 | ||
2487 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
2488 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
2489 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
2490 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
2491 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
2492 | else { | |
2493 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
c896f85a | 2494 | free(rec_argv); |
e281a960 SF |
2495 | return -1; |
2496 | } | |
9aca7f17 | 2497 | } |
9aca7f17 | 2498 | |
1e28fe0a SF |
2499 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
2500 | for (i = 0; i < majpf_args_nr; i++) | |
2501 | rec_argv[j++] = majpf_args[i]; | |
2502 | ||
2503 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
2504 | for (i = 0; i < minpf_args_nr; i++) | |
2505 | rec_argv[j++] = minpf_args[i]; | |
2506 | ||
2507 | for (i = 0; i < (unsigned int)argc; i++) | |
2508 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 2509 | |
b0ad8ea6 | 2510 | return cmd_record(j, rec_argv); |
5e2485b1 DA |
2511 | } |
2512 | ||
bf2575c1 DA |
2513 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
2514 | ||
08c98776 | 2515 | static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) |
c522739d | 2516 | { |
6ab3bc24 ACM |
2517 | bool found = false; |
2518 | struct perf_evsel *evsel, *tmp; | |
2519 | struct parse_events_error err = { .idx = 0, }; | |
2520 | int ret = parse_events(evlist, "probe:vfs_getname*", &err); | |
8dd2a131 | 2521 | |
6ab3bc24 | 2522 | if (ret) |
08c98776 | 2523 | return false; |
c522739d | 2524 | |
6ab3bc24 ACM |
2525 | evlist__for_each_entry_safe(evlist, evsel, tmp) { |
2526 | if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname")) | |
2527 | continue; | |
2528 | ||
2529 | if (perf_evsel__field(evsel, "pathname")) { | |
2530 | evsel->handler = trace__vfs_getname; | |
2531 | found = true; | |
2532 | continue; | |
2533 | } | |
2534 | ||
2535 | list_del_init(&evsel->node); | |
2536 | evsel->evlist = NULL; | |
c522739d | 2537 | perf_evsel__delete(evsel); |
c522739d ACM |
2538 | } |
2539 | ||
6ab3bc24 | 2540 | return found; |
c522739d ACM |
2541 | } |
2542 | ||
0ae537cb | 2543 | static struct perf_evsel *perf_evsel__new_pgfault(u64 config) |
598d02c5 SF |
2544 | { |
2545 | struct perf_evsel *evsel; | |
2546 | struct perf_event_attr attr = { | |
2547 | .type = PERF_TYPE_SOFTWARE, | |
2548 | .mmap_data = 1, | |
598d02c5 SF |
2549 | }; |
2550 | ||
2551 | attr.config = config; | |
0524798c | 2552 | attr.sample_period = 1; |
598d02c5 SF |
2553 | |
2554 | event_attr_init(&attr); | |
2555 | ||
2556 | evsel = perf_evsel__new(&attr); | |
0ae537cb ACM |
2557 | if (evsel) |
2558 | evsel->handler = trace__pgfault; | |
598d02c5 | 2559 | |
0ae537cb | 2560 | return evsel; |
598d02c5 SF |
2561 | } |
2562 | ||
ddbb1b13 ACM |
2563 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
2564 | { | |
2565 | const u32 type = event->header.type; | |
2566 | struct perf_evsel *evsel; | |
2567 | ||
ddbb1b13 ACM |
2568 | if (type != PERF_RECORD_SAMPLE) { |
2569 | trace__process_event(trace, trace->host, event, sample); | |
2570 | return; | |
2571 | } | |
2572 | ||
2573 | evsel = perf_evlist__id2evsel(trace->evlist, sample->id); | |
2574 | if (evsel == NULL) { | |
2575 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
2576 | return; | |
2577 | } | |
2578 | ||
e6001980 ACM |
2579 | trace__set_base_time(trace, evsel, sample); |
2580 | ||
ddbb1b13 ACM |
2581 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT && |
2582 | sample->raw_data == NULL) { | |
2583 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
2584 | perf_evsel__name(evsel), sample->tid, | |
2585 | sample->cpu, sample->raw_size); | |
2586 | } else { | |
2587 | tracepoint_handler handler = evsel->handler; | |
2588 | handler(trace, evsel, event, sample); | |
2589 | } | |
5067a8cd ACM |
2590 | |
2591 | if (trace->nr_events_printed >= trace->max_events && trace->max_events != ULONG_MAX) | |
2592 | interrupted = true; | |
ddbb1b13 ACM |
2593 | } |
2594 | ||
c27366f0 ACM |
2595 | static int trace__add_syscall_newtp(struct trace *trace) |
2596 | { | |
2597 | int ret = -1; | |
2598 | struct perf_evlist *evlist = trace->evlist; | |
2599 | struct perf_evsel *sys_enter, *sys_exit; | |
2600 | ||
63f11c80 | 2601 | sys_enter = perf_evsel__raw_syscall_newtp("sys_enter", trace__sys_enter); |
c27366f0 ACM |
2602 | if (sys_enter == NULL) |
2603 | goto out; | |
2604 | ||
2605 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
2606 | goto out_delete_sys_enter; | |
2607 | ||
63f11c80 | 2608 | sys_exit = perf_evsel__raw_syscall_newtp("sys_exit", trace__sys_exit); |
c27366f0 ACM |
2609 | if (sys_exit == NULL) |
2610 | goto out_delete_sys_enter; | |
2611 | ||
2612 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
2613 | goto out_delete_sys_exit; | |
2614 | ||
08e26396 ACM |
2615 | perf_evsel__config_callchain(sys_enter, &trace->opts, &callchain_param); |
2616 | perf_evsel__config_callchain(sys_exit, &trace->opts, &callchain_param); | |
2617 | ||
c27366f0 ACM |
2618 | perf_evlist__add(evlist, sys_enter); |
2619 | perf_evlist__add(evlist, sys_exit); | |
2620 | ||
2ddd5c04 | 2621 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
2622 | /* |
2623 | * We're interested only in the user space callchain | |
2624 | * leading to the syscall, allow overriding that for | |
2625 | * debugging reasons using --kernel_syscall_callchains | |
2626 | */ | |
2627 | sys_exit->attr.exclude_callchain_kernel = 1; | |
2628 | } | |
2629 | ||
8b3ce757 ACM |
2630 | trace->syscalls.events.sys_enter = sys_enter; |
2631 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
2632 | |
2633 | ret = 0; | |
2634 | out: | |
2635 | return ret; | |
2636 | ||
2637 | out_delete_sys_exit: | |
2638 | perf_evsel__delete_priv(sys_exit); | |
2639 | out_delete_sys_enter: | |
2640 | perf_evsel__delete_priv(sys_enter); | |
2641 | goto out; | |
2642 | } | |
2643 | ||
246fbe03 | 2644 | static int trace__set_ev_qualifier_tp_filter(struct trace *trace) |
19867b61 ACM |
2645 | { |
2646 | int err = -1; | |
b15d0a4c | 2647 | struct perf_evsel *sys_exit; |
19867b61 ACM |
2648 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, |
2649 | trace->ev_qualifier_ids.nr, | |
2650 | trace->ev_qualifier_ids.entries); | |
2651 | ||
2652 | if (filter == NULL) | |
2653 | goto out_enomem; | |
2654 | ||
3541c034 MP |
2655 | if (!perf_evsel__append_tp_filter(trace->syscalls.events.sys_enter, |
2656 | filter)) { | |
b15d0a4c | 2657 | sys_exit = trace->syscalls.events.sys_exit; |
3541c034 | 2658 | err = perf_evsel__append_tp_filter(sys_exit, filter); |
b15d0a4c | 2659 | } |
19867b61 ACM |
2660 | |
2661 | free(filter); | |
2662 | out: | |
2663 | return err; | |
2664 | out_enomem: | |
2665 | errno = ENOMEM; | |
2666 | goto out; | |
2667 | } | |
c27366f0 | 2668 | |
b27b38ed ACM |
2669 | #ifdef HAVE_LIBBPF_SUPPORT |
2670 | static int trace__set_ev_qualifier_bpf_filter(struct trace *trace) | |
2671 | { | |
2672 | int fd = bpf_map__fd(trace->syscalls.map); | |
bbab50dd ACM |
2673 | struct bpf_map_syscall_entry value = { |
2674 | .enabled = !trace->not_ev_qualifier, | |
2675 | }; | |
b27b38ed ACM |
2676 | int err = 0; |
2677 | size_t i; | |
2678 | ||
2679 | for (i = 0; i < trace->ev_qualifier_ids.nr; ++i) { | |
2680 | int key = trace->ev_qualifier_ids.entries[i]; | |
2681 | ||
2682 | err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST); | |
2683 | if (err) | |
2684 | break; | |
2685 | } | |
2686 | ||
2687 | return err; | |
2688 | } | |
2689 | ||
2690 | static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled) | |
2691 | { | |
2692 | int fd = bpf_map__fd(trace->syscalls.map); | |
bbab50dd ACM |
2693 | struct bpf_map_syscall_entry value = { |
2694 | .enabled = enabled, | |
2695 | }; | |
b27b38ed ACM |
2696 | int err = 0, key; |
2697 | ||
2698 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
bbab50dd | 2699 | err = bpf_map_update_elem(fd, &key, &value, BPF_ANY); |
b27b38ed ACM |
2700 | if (err) |
2701 | break; | |
2702 | } | |
2703 | ||
2704 | return err; | |
2705 | } | |
2706 | ||
2707 | static int trace__init_syscalls_bpf_map(struct trace *trace) | |
2708 | { | |
2709 | bool enabled = true; | |
2710 | ||
2711 | if (trace->ev_qualifier_ids.nr) | |
2712 | enabled = trace->not_ev_qualifier; | |
2713 | ||
2714 | return __trace__init_syscalls_bpf_map(trace, enabled); | |
2715 | } | |
2716 | #else | |
2717 | static int trace__set_ev_qualifier_bpf_filter(struct trace *trace __maybe_unused) | |
2718 | { | |
2719 | return 0; | |
2720 | } | |
2721 | ||
2722 | static int trace__init_syscalls_bpf_map(struct trace *trace __maybe_unused) | |
2723 | { | |
2724 | return 0; | |
2725 | } | |
2726 | #endif // HAVE_LIBBPF_SUPPORT | |
2727 | ||
246fbe03 ACM |
2728 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
2729 | { | |
b27b38ed ACM |
2730 | if (trace->syscalls.map) |
2731 | return trace__set_ev_qualifier_bpf_filter(trace); | |
f76214f9 ACM |
2732 | if (trace->syscalls.events.sys_enter) |
2733 | return trace__set_ev_qualifier_tp_filter(trace); | |
2734 | return 0; | |
246fbe03 ACM |
2735 | } |
2736 | ||
a9964c43 ACM |
2737 | static int bpf_map__set_filter_pids(struct bpf_map *map __maybe_unused, |
2738 | size_t npids __maybe_unused, pid_t *pids __maybe_unused) | |
2739 | { | |
2740 | int err = 0; | |
2741 | #ifdef HAVE_LIBBPF_SUPPORT | |
2742 | bool value = true; | |
2743 | int map_fd = bpf_map__fd(map); | |
2744 | size_t i; | |
2745 | ||
2746 | for (i = 0; i < npids; ++i) { | |
2747 | err = bpf_map_update_elem(map_fd, &pids[i], &value, BPF_ANY); | |
2748 | if (err) | |
2749 | break; | |
2750 | } | |
2751 | #endif | |
2752 | return err; | |
2753 | } | |
2754 | ||
dd1a5037 ACM |
2755 | static int trace__set_filter_loop_pids(struct trace *trace) |
2756 | { | |
a9964c43 | 2757 | unsigned int nr = 1, err; |
dd1a5037 ACM |
2758 | pid_t pids[32] = { |
2759 | getpid(), | |
2760 | }; | |
082ab9a1 ACM |
2761 | struct thread *thread = machine__find_thread(trace->host, pids[0], pids[0]); |
2762 | ||
2763 | while (thread && nr < ARRAY_SIZE(pids)) { | |
2764 | struct thread *parent = machine__find_thread(trace->host, thread->ppid, thread->ppid); | |
2765 | ||
2766 | if (parent == NULL) | |
2767 | break; | |
2768 | ||
2769 | if (!strcmp(thread__comm_str(parent), "sshd")) { | |
2770 | pids[nr++] = parent->tid; | |
2771 | break; | |
2772 | } | |
2773 | thread = parent; | |
2774 | } | |
dd1a5037 | 2775 | |
a9964c43 ACM |
2776 | err = perf_evlist__set_tp_filter_pids(trace->evlist, nr, pids); |
2777 | if (!err && trace->filter_pids.map) | |
2778 | err = bpf_map__set_filter_pids(trace->filter_pids.map, nr, pids); | |
2779 | ||
2780 | return err; | |
2781 | } | |
2782 | ||
2783 | static int trace__set_filter_pids(struct trace *trace) | |
2784 | { | |
2785 | int err = 0; | |
2786 | /* | |
2787 | * Better not use !target__has_task() here because we need to cover the | |
2788 | * case where no threads were specified in the command line, but a | |
2789 | * workload was, and in that case we will fill in the thread_map when | |
2790 | * we fork the workload in perf_evlist__prepare_workload. | |
2791 | */ | |
2792 | if (trace->filter_pids.nr > 0) { | |
2793 | err = perf_evlist__set_tp_filter_pids(trace->evlist, trace->filter_pids.nr, | |
2794 | trace->filter_pids.entries); | |
2795 | if (!err && trace->filter_pids.map) { | |
2796 | err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr, | |
2797 | trace->filter_pids.entries); | |
2798 | } | |
2799 | } else if (thread_map__pid(trace->evlist->threads, 0) == -1) { | |
2800 | err = trace__set_filter_loop_pids(trace); | |
2801 | } | |
2802 | ||
2803 | return err; | |
dd1a5037 ACM |
2804 | } |
2805 | ||
7ba61524 | 2806 | static int __trace__deliver_event(struct trace *trace, union perf_event *event) |
1f44b3e2 JO |
2807 | { |
2808 | struct perf_evlist *evlist = trace->evlist; | |
2809 | struct perf_sample sample; | |
2810 | int err; | |
2811 | ||
2812 | err = perf_evlist__parse_sample(evlist, event, &sample); | |
2813 | if (err) | |
2814 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); | |
2815 | else | |
2816 | trace__handle_event(trace, event, &sample); | |
2817 | ||
2818 | return 0; | |
2819 | } | |
2820 | ||
a761a8d1 | 2821 | static int __trace__flush_events(struct trace *trace) |
028713aa JO |
2822 | { |
2823 | u64 first = ordered_events__first_time(&trace->oe.data); | |
2824 | u64 flush = trace->oe.last - NSEC_PER_SEC; | |
2825 | ||
2826 | /* Is there some thing to flush.. */ | |
2827 | if (first && first < flush) | |
2828 | return ordered_events__flush_time(&trace->oe.data, flush); | |
2829 | ||
2830 | return 0; | |
2831 | } | |
2832 | ||
a761a8d1 ACM |
2833 | static int trace__flush_events(struct trace *trace) |
2834 | { | |
2835 | return !trace->sort_events ? 0 : __trace__flush_events(trace); | |
2836 | } | |
2837 | ||
7ba61524 | 2838 | static int trace__deliver_event(struct trace *trace, union perf_event *event) |
028713aa | 2839 | { |
028713aa JO |
2840 | int err; |
2841 | ||
a761a8d1 ACM |
2842 | if (!trace->sort_events) |
2843 | return __trace__deliver_event(trace, event); | |
2844 | ||
2845 | err = perf_evlist__parse_sample_timestamp(trace->evlist, event, &trace->oe.last); | |
028713aa JO |
2846 | if (err && err != -1) |
2847 | return err; | |
2848 | ||
2849 | err = ordered_events__queue(&trace->oe.data, event, trace->oe.last, 0); | |
2850 | if (err) | |
2851 | return err; | |
2852 | ||
7ba61524 | 2853 | return trace__flush_events(trace); |
028713aa JO |
2854 | } |
2855 | ||
2856 | static int ordered_events__deliver_event(struct ordered_events *oe, | |
2857 | struct ordered_event *event) | |
2858 | { | |
2859 | struct trace *trace = container_of(oe, struct trace, oe.data); | |
2860 | ||
7ba61524 | 2861 | return __trace__deliver_event(trace, event->event); |
028713aa JO |
2862 | } |
2863 | ||
f15eb531 | 2864 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 2865 | { |
14a052df | 2866 | struct perf_evlist *evlist = trace->evlist; |
0ae537cb | 2867 | struct perf_evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
2868 | int err = -1, i; |
2869 | unsigned long before; | |
f15eb531 | 2870 | const bool forks = argc > 0; |
46fb3c21 | 2871 | bool draining = false; |
514f1c67 | 2872 | |
75b757ca ACM |
2873 | trace->live = true; |
2874 | ||
0df50e0b ACM |
2875 | if (!trace->raw_augmented_syscalls) { |
2876 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) | |
2877 | goto out_error_raw_syscalls; | |
514f1c67 | 2878 | |
0df50e0b ACM |
2879 | if (trace->trace_syscalls) |
2880 | trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); | |
2881 | } | |
c522739d | 2882 | |
0ae537cb ACM |
2883 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
2884 | pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); | |
2885 | if (pgfault_maj == NULL) | |
2886 | goto out_error_mem; | |
08e26396 | 2887 | perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); |
0ae537cb | 2888 | perf_evlist__add(evlist, pgfault_maj); |
e2726d99 | 2889 | } |
598d02c5 | 2890 | |
0ae537cb ACM |
2891 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
2892 | pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); | |
2893 | if (pgfault_min == NULL) | |
2894 | goto out_error_mem; | |
08e26396 | 2895 | perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); |
0ae537cb ACM |
2896 | perf_evlist__add(evlist, pgfault_min); |
2897 | } | |
598d02c5 | 2898 | |
1302d88e | 2899 | if (trace->sched && |
2cc990ba ACM |
2900 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", |
2901 | trace__sched_stat_runtime)) | |
2902 | goto out_error_sched_stat_runtime; | |
1302d88e | 2903 | |
9ea42ba4 ACM |
2904 | /* |
2905 | * If a global cgroup was set, apply it to all the events without an | |
2906 | * explicit cgroup. I.e.: | |
2907 | * | |
2908 | * trace -G A -e sched:*switch | |
2909 | * | |
2910 | * Will set all raw_syscalls:sys_{enter,exit}, pgfault, vfs_getname, etc | |
2911 | * _and_ sched:sched_switch to the 'A' cgroup, while: | |
2912 | * | |
2913 | * trace -e sched:*switch -G A | |
2914 | * | |
2915 | * will only set the sched:sched_switch event to the 'A' cgroup, all the | |
2916 | * other events (raw_syscalls:sys_{enter,exit}, etc are left "without" | |
2917 | * a cgroup (on the root cgroup, sys wide, etc). | |
2918 | * | |
2919 | * Multiple cgroups: | |
2920 | * | |
2921 | * trace -G A -e sched:*switch -G B | |
2922 | * | |
2923 | * the syscall ones go to the 'A' cgroup, the sched:sched_switch goes | |
2924 | * to the 'B' cgroup. | |
2925 | * | |
2926 | * evlist__set_default_cgroup() grabs a reference of the passed cgroup | |
2927 | * only for the evsels still without a cgroup, i.e. evsel->cgroup == NULL. | |
2928 | */ | |
2929 | if (trace->cgroup) | |
2930 | evlist__set_default_cgroup(trace->evlist, trace->cgroup); | |
2931 | ||
514f1c67 ACM |
2932 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
2933 | if (err < 0) { | |
c24ff998 | 2934 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
2935 | goto out_delete_evlist; |
2936 | } | |
2937 | ||
752fde44 ACM |
2938 | err = trace__symbols_init(trace, evlist); |
2939 | if (err < 0) { | |
c24ff998 | 2940 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 2941 | goto out_delete_evlist; |
752fde44 ACM |
2942 | } |
2943 | ||
75d50117 | 2944 | perf_evlist__config(evlist, &trace->opts, &callchain_param); |
fde54b78 | 2945 | |
f15eb531 NK |
2946 | signal(SIGCHLD, sig_handler); |
2947 | signal(SIGINT, sig_handler); | |
2948 | ||
2949 | if (forks) { | |
6ef73ec4 | 2950 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
735f7e0b | 2951 | argv, false, NULL); |
f15eb531 | 2952 | if (err < 0) { |
c24ff998 | 2953 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 2954 | goto out_delete_evlist; |
f15eb531 NK |
2955 | } |
2956 | } | |
2957 | ||
514f1c67 | 2958 | err = perf_evlist__open(evlist); |
a8f23d8f ACM |
2959 | if (err < 0) |
2960 | goto out_error_open; | |
514f1c67 | 2961 | |
ba504235 WN |
2962 | err = bpf__apply_obj_config(); |
2963 | if (err) { | |
2964 | char errbuf[BUFSIZ]; | |
2965 | ||
2966 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
2967 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
2968 | errbuf); | |
2969 | goto out_error_open; | |
2970 | } | |
2971 | ||
a9964c43 | 2972 | err = trace__set_filter_pids(trace); |
94ad89bc ACM |
2973 | if (err < 0) |
2974 | goto out_error_mem; | |
2975 | ||
b27b38ed ACM |
2976 | if (trace->syscalls.map) |
2977 | trace__init_syscalls_bpf_map(trace); | |
2978 | ||
19867b61 ACM |
2979 | if (trace->ev_qualifier_ids.nr > 0) { |
2980 | err = trace__set_ev_qualifier_filter(trace); | |
2981 | if (err < 0) | |
2982 | goto out_errno; | |
19867b61 | 2983 | |
0df50e0b ACM |
2984 | if (trace->syscalls.events.sys_exit) { |
2985 | pr_debug("event qualifier tracepoint filter: %s\n", | |
2986 | trace->syscalls.events.sys_exit->filter); | |
2987 | } | |
2e5e5f87 | 2988 | } |
19867b61 | 2989 | |
94ad89bc ACM |
2990 | err = perf_evlist__apply_filters(evlist, &evsel); |
2991 | if (err < 0) | |
2992 | goto out_error_apply_filters; | |
241b057c | 2993 | |
f74b9d3a | 2994 | err = perf_evlist__mmap(evlist, trace->opts.mmap_pages); |
e09b18d4 ACM |
2995 | if (err < 0) |
2996 | goto out_error_mmap; | |
514f1c67 | 2997 | |
e36b7821 | 2998 | if (!target__none(&trace->opts.target) && !trace->opts.initial_delay) |
cb24d01d ACM |
2999 | perf_evlist__enable(evlist); |
3000 | ||
f15eb531 NK |
3001 | if (forks) |
3002 | perf_evlist__start_workload(evlist); | |
3003 | ||
e36b7821 AB |
3004 | if (trace->opts.initial_delay) { |
3005 | usleep(trace->opts.initial_delay * 1000); | |
3006 | perf_evlist__enable(evlist); | |
3007 | } | |
3008 | ||
e13798c7 | 3009 | trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 || |
42052bea ACM |
3010 | evlist->threads->nr > 1 || |
3011 | perf_evlist__first(evlist)->attr.inherit; | |
bd3dda9a ACM |
3012 | |
3013 | /* | |
3014 | * Now that we already used evsel->attr to ask the kernel to setup the | |
3015 | * events, lets reuse evsel->attr.sample_max_stack as the limit in | |
3016 | * trace__resolve_callchain(), allowing per-event max-stack settings | |
adba1634 | 3017 | * to override an explicitly set --max-stack global setting. |
bd3dda9a ACM |
3018 | */ |
3019 | evlist__for_each_entry(evlist, evsel) { | |
27de9b2b | 3020 | if (evsel__has_callchain(evsel) && |
bd3dda9a ACM |
3021 | evsel->attr.sample_max_stack == 0) |
3022 | evsel->attr.sample_max_stack = trace->max_stack; | |
3023 | } | |
514f1c67 | 3024 | again: |
efd5745e | 3025 | before = trace->nr_events; |
514f1c67 ACM |
3026 | |
3027 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
3028 | union perf_event *event; | |
d7f55c62 | 3029 | struct perf_mmap *md; |
514f1c67 | 3030 | |
d7f55c62 | 3031 | md = &evlist->mmap[i]; |
b9bae2c8 | 3032 | if (perf_mmap__read_init(md) < 0) |
d7f55c62 KL |
3033 | continue; |
3034 | ||
0019dc87 | 3035 | while ((event = perf_mmap__read_event(md)) != NULL) { |
efd5745e | 3036 | ++trace->nr_events; |
514f1c67 | 3037 | |
7ba61524 | 3038 | err = trace__deliver_event(trace, event); |
028713aa JO |
3039 | if (err) |
3040 | goto out_disable; | |
514f1c67 | 3041 | |
d6ace3df | 3042 | perf_mmap__consume(md); |
20c5f10e | 3043 | |
ba209f85 ACM |
3044 | if (interrupted) |
3045 | goto out_disable; | |
02ac5421 ACM |
3046 | |
3047 | if (done && !draining) { | |
3048 | perf_evlist__disable(evlist); | |
3049 | draining = true; | |
3050 | } | |
514f1c67 | 3051 | } |
d7f55c62 | 3052 | perf_mmap__read_done(md); |
514f1c67 ACM |
3053 | } |
3054 | ||
efd5745e | 3055 | if (trace->nr_events == before) { |
ba209f85 | 3056 | int timeout = done ? 100 : -1; |
f15eb531 | 3057 | |
46fb3c21 | 3058 | if (!draining && perf_evlist__poll(evlist, timeout) > 0) { |
a9c5e6c1 | 3059 | if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP | POLLNVAL) == 0) |
46fb3c21 ACM |
3060 | draining = true; |
3061 | ||
ba209f85 | 3062 | goto again; |
028713aa | 3063 | } else { |
7ba61524 | 3064 | if (trace__flush_events(trace)) |
028713aa | 3065 | goto out_disable; |
46fb3c21 | 3066 | } |
ba209f85 ACM |
3067 | } else { |
3068 | goto again; | |
f15eb531 NK |
3069 | } |
3070 | ||
ba209f85 | 3071 | out_disable: |
f3b623b8 ACM |
3072 | thread__zput(trace->current); |
3073 | ||
ba209f85 | 3074 | perf_evlist__disable(evlist); |
514f1c67 | 3075 | |
a761a8d1 ACM |
3076 | if (trace->sort_events) |
3077 | ordered_events__flush(&trace->oe.data, OE_FLUSH__FINAL); | |
028713aa | 3078 | |
c522739d ACM |
3079 | if (!err) { |
3080 | if (trace->summary) | |
3081 | trace__fprintf_thread_summary(trace, trace->output); | |
3082 | ||
3083 | if (trace->show_tool_stats) { | |
3084 | fprintf(trace->output, "Stats:\n " | |
3085 | " vfs_getname : %" PRIu64 "\n" | |
3086 | " proc_getname: %" PRIu64 "\n", | |
3087 | trace->stats.vfs_getname, | |
3088 | trace->stats.proc_getname); | |
3089 | } | |
3090 | } | |
bf2575c1 | 3091 | |
514f1c67 | 3092 | out_delete_evlist: |
33974a41 AV |
3093 | trace__symbols__exit(trace); |
3094 | ||
514f1c67 | 3095 | perf_evlist__delete(evlist); |
9ea42ba4 | 3096 | cgroup__put(trace->cgroup); |
14a052df | 3097 | trace->evlist = NULL; |
75b757ca | 3098 | trace->live = false; |
514f1c67 | 3099 | return err; |
6ef068cb ACM |
3100 | { |
3101 | char errbuf[BUFSIZ]; | |
a8f23d8f | 3102 | |
2cc990ba | 3103 | out_error_sched_stat_runtime: |
988bdb31 | 3104 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
3105 | goto out_error; |
3106 | ||
801c67b0 | 3107 | out_error_raw_syscalls: |
988bdb31 | 3108 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
3109 | goto out_error; |
3110 | ||
e09b18d4 ACM |
3111 | out_error_mmap: |
3112 | perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); | |
3113 | goto out_error; | |
3114 | ||
a8f23d8f ACM |
3115 | out_error_open: |
3116 | perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); | |
3117 | ||
3118 | out_error: | |
6ef068cb | 3119 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 3120 | goto out_delete_evlist; |
94ad89bc ACM |
3121 | |
3122 | out_error_apply_filters: | |
3123 | fprintf(trace->output, | |
3124 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
3125 | evsel->filter, perf_evsel__name(evsel), errno, | |
c8b5f2c9 | 3126 | str_error_r(errno, errbuf, sizeof(errbuf))); |
94ad89bc | 3127 | goto out_delete_evlist; |
514f1c67 | 3128 | } |
5ed08dae ACM |
3129 | out_error_mem: |
3130 | fprintf(trace->output, "Not enough memory to run!\n"); | |
3131 | goto out_delete_evlist; | |
19867b61 ACM |
3132 | |
3133 | out_errno: | |
3134 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
3135 | goto out_delete_evlist; | |
a8f23d8f | 3136 | } |
514f1c67 | 3137 | |
6810fc91 DA |
3138 | static int trace__replay(struct trace *trace) |
3139 | { | |
3140 | const struct perf_evsel_str_handler handlers[] = { | |
c522739d | 3141 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 3142 | }; |
8ceb41d7 | 3143 | struct perf_data data = { |
eae8ad80 JO |
3144 | .file = { |
3145 | .path = input_name, | |
3146 | }, | |
3147 | .mode = PERF_DATA_MODE_READ, | |
3148 | .force = trace->force, | |
f5fc1412 | 3149 | }; |
6810fc91 | 3150 | struct perf_session *session; |
003824e8 | 3151 | struct perf_evsel *evsel; |
6810fc91 DA |
3152 | int err = -1; |
3153 | ||
3154 | trace->tool.sample = trace__process_sample; | |
3155 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 3156 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
3157 | trace->tool.comm = perf_event__process_comm; |
3158 | trace->tool.exit = perf_event__process_exit; | |
3159 | trace->tool.fork = perf_event__process_fork; | |
3160 | trace->tool.attr = perf_event__process_attr; | |
f3b3614a | 3161 | trace->tool.tracing_data = perf_event__process_tracing_data; |
6810fc91 | 3162 | trace->tool.build_id = perf_event__process_build_id; |
f3b3614a | 3163 | trace->tool.namespaces = perf_event__process_namespaces; |
6810fc91 | 3164 | |
0a8cb85c | 3165 | trace->tool.ordered_events = true; |
6810fc91 DA |
3166 | trace->tool.ordering_requires_timestamps = true; |
3167 | ||
3168 | /* add tid to output */ | |
3169 | trace->multiple_threads = true; | |
3170 | ||
8ceb41d7 | 3171 | session = perf_session__new(&data, false, &trace->tool); |
6810fc91 | 3172 | if (session == NULL) |
52e02834 | 3173 | return -1; |
6810fc91 | 3174 | |
aa07df6e DA |
3175 | if (trace->opts.target.pid) |
3176 | symbol_conf.pid_list_str = strdup(trace->opts.target.pid); | |
3177 | ||
3178 | if (trace->opts.target.tid) | |
3179 | symbol_conf.tid_list_str = strdup(trace->opts.target.tid); | |
3180 | ||
0a7e6d1b | 3181 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
3182 | goto out; |
3183 | ||
8fb598e5 DA |
3184 | trace->host = &session->machines.host; |
3185 | ||
6810fc91 DA |
3186 | err = perf_session__set_tracepoints_handlers(session, handlers); |
3187 | if (err) | |
3188 | goto out; | |
3189 | ||
003824e8 NK |
3190 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, |
3191 | "raw_syscalls:sys_enter"); | |
9aca7f17 DA |
3192 | /* older kernels have syscalls tp versus raw_syscalls */ |
3193 | if (evsel == NULL) | |
3194 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3195 | "syscalls:sys_enter"); | |
003824e8 | 3196 | |
e281a960 | 3197 | if (evsel && |
63f11c80 | 3198 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_enter) < 0 || |
e281a960 | 3199 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { |
003824e8 NK |
3200 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
3201 | goto out; | |
3202 | } | |
3203 | ||
3204 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3205 | "raw_syscalls:sys_exit"); | |
9aca7f17 DA |
3206 | if (evsel == NULL) |
3207 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3208 | "syscalls:sys_exit"); | |
e281a960 | 3209 | if (evsel && |
63f11c80 | 3210 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_exit) < 0 || |
e281a960 | 3211 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { |
003824e8 | 3212 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
3213 | goto out; |
3214 | } | |
3215 | ||
e5cadb93 | 3216 | evlist__for_each_entry(session->evlist, evsel) { |
1e28fe0a SF |
3217 | if (evsel->attr.type == PERF_TYPE_SOFTWARE && |
3218 | (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
3219 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
3220 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
3221 | evsel->handler = trace__pgfault; | |
3222 | } | |
3223 | ||
6810fc91 DA |
3224 | setup_pager(); |
3225 | ||
b7b61cbe | 3226 | err = perf_session__process_events(session); |
6810fc91 DA |
3227 | if (err) |
3228 | pr_err("Failed to process events, error %d", err); | |
3229 | ||
bf2575c1 DA |
3230 | else if (trace->summary) |
3231 | trace__fprintf_thread_summary(trace, trace->output); | |
3232 | ||
6810fc91 DA |
3233 | out: |
3234 | perf_session__delete(session); | |
3235 | ||
3236 | return err; | |
3237 | } | |
3238 | ||
1302d88e ACM |
3239 | static size_t trace__fprintf_threads_header(FILE *fp) |
3240 | { | |
3241 | size_t printed; | |
3242 | ||
99ff7150 | 3243 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
3244 | |
3245 | return printed; | |
3246 | } | |
3247 | ||
b535d523 ACM |
3248 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
3249 | struct stats *stats; | |
3250 | double msecs; | |
3251 | int syscall; | |
3252 | ) | |
3253 | { | |
3254 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
3255 | struct stats *stats = source->priv; | |
3256 | ||
3257 | entry->syscall = source->i; | |
3258 | entry->stats = stats; | |
3259 | entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0; | |
3260 | } | |
3261 | ||
bf2575c1 DA |
3262 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
3263 | struct trace *trace, FILE *fp) | |
3264 | { | |
bf2575c1 DA |
3265 | size_t printed = 0; |
3266 | struct syscall *sc; | |
b535d523 ACM |
3267 | struct rb_node *nd; |
3268 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 3269 | |
b535d523 | 3270 | if (syscall_stats == NULL) |
bf2575c1 DA |
3271 | return 0; |
3272 | ||
3273 | printed += fprintf(fp, "\n"); | |
3274 | ||
834fd46d MW |
3275 | printed += fprintf(fp, " syscall calls total min avg max stddev\n"); |
3276 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
3277 | printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n"); | |
99ff7150 | 3278 | |
98a91837 | 3279 | resort_rb__for_each_entry(nd, syscall_stats) { |
b535d523 | 3280 | struct stats *stats = syscall_stats_entry->stats; |
bf2575c1 DA |
3281 | if (stats) { |
3282 | double min = (double)(stats->min) / NSEC_PER_MSEC; | |
3283 | double max = (double)(stats->max) / NSEC_PER_MSEC; | |
3284 | double avg = avg_stats(stats); | |
3285 | double pct; | |
3286 | u64 n = (u64) stats->n; | |
3287 | ||
3288 | pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; | |
3289 | avg /= NSEC_PER_MSEC; | |
3290 | ||
b535d523 | 3291 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 3292 | printed += fprintf(fp, " %-15s", sc->name); |
834fd46d | 3293 | printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f", |
b535d523 | 3294 | n, syscall_stats_entry->msecs, min, avg); |
27a778b5 | 3295 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
bf2575c1 | 3296 | } |
bf2575c1 DA |
3297 | } |
3298 | ||
b535d523 | 3299 | resort_rb__delete(syscall_stats); |
bf2575c1 | 3300 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
3301 | |
3302 | return printed; | |
3303 | } | |
3304 | ||
96c14451 | 3305 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 3306 | { |
96c14451 | 3307 | size_t printed = 0; |
89dceb22 | 3308 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
3309 | double ratio; |
3310 | ||
3311 | if (ttrace == NULL) | |
3312 | return 0; | |
3313 | ||
3314 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
3315 | ||
15e65c69 | 3316 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); |
99ff7150 | 3317 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 3318 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
3319 | if (ttrace->pfmaj) |
3320 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
3321 | if (ttrace->pfmin) | |
3322 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
3323 | if (trace->sched) |
3324 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
3325 | else if (fputc('\n', fp) != EOF) | |
3326 | ++printed; | |
3327 | ||
bf2575c1 | 3328 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 3329 | |
96c14451 ACM |
3330 | return printed; |
3331 | } | |
896cbb56 | 3332 | |
96c14451 ACM |
3333 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
3334 | { | |
3335 | return ttrace ? ttrace->nr_events : 0; | |
3336 | } | |
3337 | ||
3338 | DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)), | |
3339 | struct thread *thread; | |
3340 | ) | |
3341 | { | |
3342 | entry->thread = rb_entry(nd, struct thread, rb_node); | |
896cbb56 DA |
3343 | } |
3344 | ||
1302d88e ACM |
3345 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
3346 | { | |
96c14451 ACM |
3347 | size_t printed = trace__fprintf_threads_header(fp); |
3348 | struct rb_node *nd; | |
91e467bc | 3349 | int i; |
1302d88e | 3350 | |
91e467bc KL |
3351 | for (i = 0; i < THREADS__TABLE_SIZE; i++) { |
3352 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i); | |
96c14451 | 3353 | |
91e467bc KL |
3354 | if (threads == NULL) { |
3355 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
3356 | return 0; | |
3357 | } | |
896cbb56 | 3358 | |
91e467bc KL |
3359 | resort_rb__for_each_entry(nd, threads) |
3360 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); | |
96c14451 | 3361 | |
91e467bc KL |
3362 | resort_rb__delete(threads); |
3363 | } | |
96c14451 | 3364 | return printed; |
1302d88e ACM |
3365 | } |
3366 | ||
ae9ed035 ACM |
3367 | static int trace__set_duration(const struct option *opt, const char *str, |
3368 | int unset __maybe_unused) | |
3369 | { | |
3370 | struct trace *trace = opt->value; | |
3371 | ||
3372 | trace->duration_filter = atof(str); | |
3373 | return 0; | |
3374 | } | |
3375 | ||
6a0b3aba ACM |
3376 | static int trace__set_filter_pids_from_option(const struct option *opt, const char *str, |
3377 | int unset __maybe_unused) | |
f078c385 ACM |
3378 | { |
3379 | int ret = -1; | |
3380 | size_t i; | |
3381 | struct trace *trace = opt->value; | |
3382 | /* | |
3383 | * FIXME: introduce a intarray class, plain parse csv and create a | |
3384 | * { int nr, int entries[] } struct... | |
3385 | */ | |
3386 | struct intlist *list = intlist__new(str); | |
3387 | ||
3388 | if (list == NULL) | |
3389 | return -1; | |
3390 | ||
3391 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
3392 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
3393 | ||
3394 | if (trace->filter_pids.entries == NULL) | |
3395 | goto out; | |
3396 | ||
3397 | trace->filter_pids.entries[0] = getpid(); | |
3398 | ||
3399 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
3400 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
3401 | ||
3402 | intlist__delete(list); | |
3403 | ret = 0; | |
3404 | out: | |
3405 | return ret; | |
3406 | } | |
3407 | ||
c24ff998 ACM |
3408 | static int trace__open_output(struct trace *trace, const char *filename) |
3409 | { | |
3410 | struct stat st; | |
3411 | ||
3412 | if (!stat(filename, &st) && st.st_size) { | |
3413 | char oldname[PATH_MAX]; | |
3414 | ||
3415 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
3416 | unlink(oldname); | |
3417 | rename(filename, oldname); | |
3418 | } | |
3419 | ||
3420 | trace->output = fopen(filename, "w"); | |
3421 | ||
3422 | return trace->output == NULL ? -errno : 0; | |
3423 | } | |
3424 | ||
598d02c5 SF |
3425 | static int parse_pagefaults(const struct option *opt, const char *str, |
3426 | int unset __maybe_unused) | |
3427 | { | |
3428 | int *trace_pgfaults = opt->value; | |
3429 | ||
3430 | if (strcmp(str, "all") == 0) | |
3431 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
3432 | else if (strcmp(str, "maj") == 0) | |
3433 | *trace_pgfaults |= TRACE_PFMAJ; | |
3434 | else if (strcmp(str, "min") == 0) | |
3435 | *trace_pgfaults |= TRACE_PFMIN; | |
3436 | else | |
3437 | return -1; | |
3438 | ||
3439 | return 0; | |
3440 | } | |
3441 | ||
14a052df ACM |
3442 | static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) |
3443 | { | |
3444 | struct perf_evsel *evsel; | |
3445 | ||
e5cadb93 | 3446 | evlist__for_each_entry(evlist, evsel) |
14a052df ACM |
3447 | evsel->handler = handler; |
3448 | } | |
3449 | ||
d32855fa ACM |
3450 | static int evlist__set_syscall_tp_fields(struct perf_evlist *evlist) |
3451 | { | |
3452 | struct perf_evsel *evsel; | |
3453 | ||
3454 | evlist__for_each_entry(evlist, evsel) { | |
3455 | if (evsel->priv || !evsel->tp_format) | |
3456 | continue; | |
3457 | ||
3458 | if (strcmp(evsel->tp_format->system, "syscalls")) | |
3459 | continue; | |
3460 | ||
3461 | if (perf_evsel__init_syscall_tp(evsel)) | |
3462 | return -1; | |
3463 | ||
3464 | if (!strncmp(evsel->tp_format->name, "sys_enter_", 10)) { | |
3465 | struct syscall_tp *sc = evsel->priv; | |
3466 | ||
3467 | if (__tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64))) | |
3468 | return -1; | |
3469 | } else if (!strncmp(evsel->tp_format->name, "sys_exit_", 9)) { | |
3470 | struct syscall_tp *sc = evsel->priv; | |
3471 | ||
3472 | if (__tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap)) | |
3473 | return -1; | |
3474 | } | |
3475 | } | |
3476 | ||
3477 | return 0; | |
3478 | } | |
3479 | ||
017037ff ACM |
3480 | /* |
3481 | * XXX: Hackish, just splitting the combined -e+--event (syscalls | |
3482 | * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use | |
3483 | * existing facilities unchanged (trace->ev_qualifier + parse_options()). | |
3484 | * | |
3485 | * It'd be better to introduce a parse_options() variant that would return a | |
3486 | * list with the terms it didn't match to an event... | |
3487 | */ | |
3488 | static int trace__parse_events_option(const struct option *opt, const char *str, | |
3489 | int unset __maybe_unused) | |
3490 | { | |
3491 | struct trace *trace = (struct trace *)opt->value; | |
3492 | const char *s = str; | |
3493 | char *sep = NULL, *lists[2] = { NULL, NULL, }; | |
27702bcf | 3494 | int len = strlen(str) + 1, err = -1, list, idx; |
017037ff ACM |
3495 | char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); |
3496 | char group_name[PATH_MAX]; | |
f932184e | 3497 | struct syscall_fmt *fmt; |
017037ff ACM |
3498 | |
3499 | if (strace_groups_dir == NULL) | |
3500 | return -1; | |
3501 | ||
3502 | if (*s == '!') { | |
3503 | ++s; | |
3504 | trace->not_ev_qualifier = true; | |
3505 | } | |
3506 | ||
3507 | while (1) { | |
3508 | if ((sep = strchr(s, ',')) != NULL) | |
3509 | *sep = '\0'; | |
3510 | ||
3511 | list = 0; | |
27702bcf ACM |
3512 | if (syscalltbl__id(trace->sctbl, s) >= 0 || |
3513 | syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) { | |
017037ff | 3514 | list = 1; |
f932184e ACM |
3515 | goto do_concat; |
3516 | } | |
3517 | ||
3518 | fmt = syscall_fmt__find_by_alias(s); | |
3519 | if (fmt != NULL) { | |
3520 | list = 1; | |
3521 | s = fmt->name; | |
017037ff ACM |
3522 | } else { |
3523 | path__join(group_name, sizeof(group_name), strace_groups_dir, s); | |
3524 | if (access(group_name, R_OK) == 0) | |
3525 | list = 1; | |
3526 | } | |
f932184e | 3527 | do_concat: |
017037ff ACM |
3528 | if (lists[list]) { |
3529 | sprintf(lists[list] + strlen(lists[list]), ",%s", s); | |
3530 | } else { | |
3531 | lists[list] = malloc(len); | |
3532 | if (lists[list] == NULL) | |
3533 | goto out; | |
3534 | strcpy(lists[list], s); | |
3535 | } | |
3536 | ||
3537 | if (!sep) | |
3538 | break; | |
3539 | ||
3540 | *sep = ','; | |
3541 | s = sep + 1; | |
3542 | } | |
3543 | ||
3544 | if (lists[1] != NULL) { | |
3545 | struct strlist_config slist_config = { | |
3546 | .dirname = strace_groups_dir, | |
3547 | }; | |
3548 | ||
3549 | trace->ev_qualifier = strlist__new(lists[1], &slist_config); | |
3550 | if (trace->ev_qualifier == NULL) { | |
3551 | fputs("Not enough memory to parse event qualifier", trace->output); | |
3552 | goto out; | |
3553 | } | |
3554 | ||
3555 | if (trace__validate_ev_qualifier(trace)) | |
3556 | goto out; | |
b912885a | 3557 | trace->trace_syscalls = true; |
017037ff ACM |
3558 | } |
3559 | ||
3560 | err = 0; | |
3561 | ||
3562 | if (lists[0]) { | |
3563 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", | |
3564 | "event selector. use 'perf list' to list available events", | |
3565 | parse_events_option); | |
3566 | err = parse_events_option(&o, lists[0], 0); | |
3567 | } | |
3568 | out: | |
3569 | if (sep) | |
3570 | *sep = ','; | |
3571 | ||
3572 | return err; | |
3573 | } | |
3574 | ||
9ea42ba4 ACM |
3575 | static int trace__parse_cgroups(const struct option *opt, const char *str, int unset) |
3576 | { | |
3577 | struct trace *trace = opt->value; | |
3578 | ||
3579 | if (!list_empty(&trace->evlist->entries)) | |
3580 | return parse_cgroups(opt, str, unset); | |
3581 | ||
3582 | trace->cgroup = evlist__findnew_cgroup(trace->evlist, str); | |
3583 | ||
3584 | return 0; | |
3585 | } | |
3586 | ||
744fafc7 ACM |
3587 | static struct bpf_map *bpf__find_map_by_name(const char *name) |
3588 | { | |
3589 | struct bpf_object *obj, *tmp; | |
3590 | ||
3591 | bpf_object__for_each_safe(obj, tmp) { | |
3592 | struct bpf_map *map = bpf_object__find_map_by_name(obj, name); | |
3593 | if (map) | |
3594 | return map; | |
3595 | ||
3596 | } | |
3597 | ||
3598 | return NULL; | |
3599 | } | |
3600 | ||
3601 | static void trace__set_bpf_map_filtered_pids(struct trace *trace) | |
3602 | { | |
3603 | trace->filter_pids.map = bpf__find_map_by_name("pids_filtered"); | |
3604 | } | |
3605 | ||
b27b38ed ACM |
3606 | static void trace__set_bpf_map_syscalls(struct trace *trace) |
3607 | { | |
3608 | trace->syscalls.map = bpf__find_map_by_name("syscalls"); | |
3609 | } | |
3610 | ||
ac96287c ACM |
3611 | static int trace__config(const char *var, const char *value, void *arg) |
3612 | { | |
e7c634fc | 3613 | struct trace *trace = arg; |
ac96287c ACM |
3614 | int err = 0; |
3615 | ||
3616 | if (!strcmp(var, "trace.add_events")) { | |
ac96287c ACM |
3617 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", |
3618 | "event selector. use 'perf list' to list available events", | |
3619 | parse_events_option); | |
3620 | err = parse_events_option(&o, value, 0); | |
b036146f ACM |
3621 | } else if (!strcmp(var, "trace.show_timestamp")) { |
3622 | trace->show_tstamp = perf_config_bool(var, value); | |
42e4a52d ACM |
3623 | } else if (!strcmp(var, "trace.show_duration")) { |
3624 | trace->show_duration = perf_config_bool(var, value); | |
9d6dc178 ACM |
3625 | } else if (!strcmp(var, "trace.show_arg_names")) { |
3626 | trace->show_arg_names = perf_config_bool(var, value); | |
3627 | if (!trace->show_arg_names) | |
3628 | trace->show_zeros = true; | |
e7c634fc | 3629 | } else if (!strcmp(var, "trace.show_zeros")) { |
9d6dc178 ACM |
3630 | bool new_show_zeros = perf_config_bool(var, value); |
3631 | if (!trace->show_arg_names && !new_show_zeros) { | |
3632 | pr_warning("trace.show_zeros has to be set when trace.show_arg_names=no\n"); | |
3633 | goto out; | |
3634 | } | |
3635 | trace->show_zeros = new_show_zeros; | |
c65c83ff ACM |
3636 | } else if (!strcmp(var, "trace.show_prefix")) { |
3637 | trace->show_string_prefix = perf_config_bool(var, value); | |
d32de87e ACM |
3638 | } else if (!strcmp(var, "trace.no_inherit")) { |
3639 | trace->opts.no_inherit = perf_config_bool(var, value); | |
9ed45d59 ACM |
3640 | } else if (!strcmp(var, "trace.args_alignment")) { |
3641 | int args_alignment = 0; | |
3642 | if (perf_config_int(&args_alignment, var, value) == 0) | |
3643 | trace->args_alignment = args_alignment; | |
ac96287c | 3644 | } |
9d6dc178 | 3645 | out: |
ac96287c ACM |
3646 | return err; |
3647 | } | |
3648 | ||
b0ad8ea6 | 3649 | int cmd_trace(int argc, const char **argv) |
514f1c67 | 3650 | { |
6fdd9cb7 | 3651 | const char *trace_usage[] = { |
f15eb531 NK |
3652 | "perf trace [<options>] [<command>]", |
3653 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
3654 | "perf trace record [<options>] [<command>]", |
3655 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
3656 | NULL |
3657 | }; | |
3658 | struct trace trace = { | |
514f1c67 ACM |
3659 | .syscalls = { |
3660 | . max = -1, | |
3661 | }, | |
3662 | .opts = { | |
3663 | .target = { | |
3664 | .uid = UINT_MAX, | |
3665 | .uses_mmap = true, | |
3666 | }, | |
3667 | .user_freq = UINT_MAX, | |
3668 | .user_interval = ULLONG_MAX, | |
509051ea | 3669 | .no_buffering = true, |
38d5447d | 3670 | .mmap_pages = UINT_MAX, |
514f1c67 | 3671 | }, |
007d66a0 | 3672 | .output = stderr, |
50c95cbd | 3673 | .show_comm = true, |
b036146f | 3674 | .show_tstamp = true, |
42e4a52d | 3675 | .show_duration = true, |
9d6dc178 | 3676 | .show_arg_names = true, |
9ed45d59 | 3677 | .args_alignment = 70, |
b912885a | 3678 | .trace_syscalls = false, |
44621819 | 3679 | .kernel_syscallchains = false, |
05614993 | 3680 | .max_stack = UINT_MAX, |
5067a8cd | 3681 | .max_events = ULONG_MAX, |
514f1c67 | 3682 | }; |
c24ff998 | 3683 | const char *output_name = NULL; |
514f1c67 | 3684 | const struct option trace_options[] = { |
017037ff ACM |
3685 | OPT_CALLBACK('e', "event", &trace, "event", |
3686 | "event/syscall selector. use 'perf list' to list available events", | |
3687 | trace__parse_events_option), | |
50c95cbd ACM |
3688 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
3689 | "show the thread COMM next to its id"), | |
c522739d | 3690 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
017037ff ACM |
3691 | OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace", |
3692 | trace__parse_events_option), | |
c24ff998 | 3693 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 3694 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
3695 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
3696 | "trace events on existing process id"), | |
ac9be8ee | 3697 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 3698 | "trace events on existing thread id"), |
fa0e4ffe | 3699 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
6a0b3aba | 3700 | "pids to filter (by the kernel)", trace__set_filter_pids_from_option), |
ac9be8ee | 3701 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 3702 | "system-wide collection from all CPUs"), |
ac9be8ee | 3703 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 3704 | "list of cpus to monitor"), |
6810fc91 | 3705 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 3706 | "child tasks do not inherit counters"), |
994a1f78 JO |
3707 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
3708 | "number of mmap data pages", | |
3709 | perf_evlist__parse_mmap_pages), | |
ac9be8ee | 3710 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 3711 | "user to profile"), |
ae9ed035 ACM |
3712 | OPT_CALLBACK(0, "duration", &trace, "float", |
3713 | "show only events with duration > N.M ms", | |
3714 | trace__set_duration), | |
1302d88e | 3715 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 3716 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
3717 | OPT_BOOLEAN('T', "time", &trace.full_time, |
3718 | "Show full timestamp, not time relative to first start"), | |
0a6545bd ACM |
3719 | OPT_BOOLEAN(0, "failure", &trace.failure_only, |
3720 | "Show only syscalls that failed"), | |
fd2eabaf DA |
3721 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
3722 | "Show only syscall summary with statistics"), | |
3723 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
3724 | "Show all syscalls and summary with statistics"), | |
598d02c5 SF |
3725 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
3726 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 3727 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 3728 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
3729 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
3730 | "record_mode[,record_size]", record_callchain_help, | |
3731 | &record_parse_callchain_opt), | |
44621819 ACM |
3732 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
3733 | "Show the kernel callchains on the syscall exit path"), | |
5067a8cd ACM |
3734 | OPT_ULONG(0, "max-events", &trace.max_events, |
3735 | "Set the maximum number of events to print, exit after that is reached. "), | |
5cf9c84e ACM |
3736 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
3737 | "Set the minimum stack depth when parsing the callchain, " | |
3738 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
3739 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
3740 | "Set the maximum stack depth when parsing the callchain, " | |
3741 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 3742 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
a761a8d1 ACM |
3743 | OPT_BOOLEAN(0, "sort-events", &trace.sort_events, |
3744 | "Sort batch of events before processing, use if getting out of order events"), | |
591421e1 ACM |
3745 | OPT_BOOLEAN(0, "print-sample", &trace.print_sample, |
3746 | "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"), | |
3fcb10e4 | 3747 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 3748 | "per thread proc mmap processing timeout in ms"), |
9ea42ba4 ACM |
3749 | OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only", |
3750 | trace__parse_cgroups), | |
e36b7821 AB |
3751 | OPT_UINTEGER('D', "delay", &trace.opts.initial_delay, |
3752 | "ms to wait before starting measurement after program " | |
3753 | "start"), | |
514f1c67 ACM |
3754 | OPT_END() |
3755 | }; | |
ccd62a89 | 3756 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 3757 | bool mmap_pages_user_set = true; |
78e890ea | 3758 | struct perf_evsel *evsel; |
6fdd9cb7 | 3759 | const char * const trace_subcommands[] = { "record", NULL }; |
78e890ea | 3760 | int err = -1; |
32caf0d1 | 3761 | char bf[BUFSIZ]; |
514f1c67 | 3762 | |
4d08cb80 ACM |
3763 | signal(SIGSEGV, sighandler_dump_stack); |
3764 | signal(SIGFPE, sighandler_dump_stack); | |
3765 | ||
14a052df | 3766 | trace.evlist = perf_evlist__new(); |
fd0db102 | 3767 | trace.sctbl = syscalltbl__new(); |
14a052df | 3768 | |
fd0db102 | 3769 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 3770 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 3771 | err = -ENOMEM; |
14a052df ACM |
3772 | goto out; |
3773 | } | |
3774 | ||
ac96287c ACM |
3775 | err = perf_config(trace__config, &trace); |
3776 | if (err) | |
3777 | goto out; | |
3778 | ||
6fdd9cb7 YS |
3779 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
3780 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
fd2eabaf | 3781 | |
9ea42ba4 ACM |
3782 | if ((nr_cgroups || trace.cgroup) && !trace.opts.target.system_wide) { |
3783 | usage_with_options_msg(trace_usage, trace_options, | |
3784 | "cgroup monitoring only available in system-wide mode"); | |
3785 | } | |
3786 | ||
78e890ea ACM |
3787 | evsel = bpf__setup_output_event(trace.evlist, "__augmented_syscalls__"); |
3788 | if (IS_ERR(evsel)) { | |
3789 | bpf__strerror_setup_output_event(trace.evlist, PTR_ERR(evsel), bf, sizeof(bf)); | |
e0b6d2ef ACM |
3790 | pr_err("ERROR: Setup trace syscalls enter failed: %s\n", bf); |
3791 | goto out; | |
3792 | } | |
3793 | ||
744fafc7 | 3794 | if (evsel) { |
d3d1c4bd | 3795 | trace.syscalls.events.augmented = evsel; |
744fafc7 | 3796 | trace__set_bpf_map_filtered_pids(&trace); |
b27b38ed | 3797 | trace__set_bpf_map_syscalls(&trace); |
744fafc7 | 3798 | } |
d3d1c4bd | 3799 | |
d7888573 WN |
3800 | err = bpf__setup_stdout(trace.evlist); |
3801 | if (err) { | |
3802 | bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf)); | |
3803 | pr_err("ERROR: Setup BPF stdout failed: %s\n", bf); | |
3804 | goto out; | |
3805 | } | |
3806 | ||
59247e33 ACM |
3807 | err = -1; |
3808 | ||
598d02c5 SF |
3809 | if (trace.trace_pgfaults) { |
3810 | trace.opts.sample_address = true; | |
3811 | trace.opts.sample_time = true; | |
3812 | } | |
3813 | ||
f3e459d1 ACM |
3814 | if (trace.opts.mmap_pages == UINT_MAX) |
3815 | mmap_pages_user_set = false; | |
3816 | ||
05614993 | 3817 | if (trace.max_stack == UINT_MAX) { |
029c75e5 | 3818 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl__max_stack(); |
05614993 ACM |
3819 | max_stack_user_set = false; |
3820 | } | |
3821 | ||
3822 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
75d50117 | 3823 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled) { |
05614993 | 3824 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
75d50117 | 3825 | } |
05614993 ACM |
3826 | #endif |
3827 | ||
2ddd5c04 | 3828 | if (callchain_param.enabled) { |
f3e459d1 ACM |
3829 | if (!mmap_pages_user_set && geteuid() == 0) |
3830 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
3831 | ||
566a0885 | 3832 | symbol_conf.use_callchain = true; |
f3e459d1 | 3833 | } |
566a0885 | 3834 | |
d32855fa | 3835 | if (trace.evlist->nr_entries > 0) { |
14a052df | 3836 | evlist__set_evsel_handler(trace.evlist, trace__event_handler); |
d32855fa ACM |
3837 | if (evlist__set_syscall_tp_fields(trace.evlist)) { |
3838 | perror("failed to set syscalls:* tracepoint fields"); | |
3839 | goto out; | |
3840 | } | |
3841 | } | |
14a052df | 3842 | |
a761a8d1 ACM |
3843 | if (trace.sort_events) { |
3844 | ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace); | |
3845 | ordered_events__set_copy_on_queue(&trace.oe.data, true); | |
3846 | } | |
028713aa | 3847 | |
b1a9e253 ACM |
3848 | /* |
3849 | * If we are augmenting syscalls, then combine what we put in the | |
3850 | * __augmented_syscalls__ BPF map with what is in the | |
3851 | * syscalls:sys_exit_FOO tracepoints, i.e. just like we do without BPF, | |
3852 | * combining raw_syscalls:sys_enter with raw_syscalls:sys_exit. | |
3853 | * | |
3854 | * We'll switch to look at two BPF maps, one for sys_enter and the | |
3855 | * other for sys_exit when we start augmenting the sys_exit paths with | |
3856 | * buffers that are being copied from kernel to userspace, think 'read' | |
3857 | * syscall. | |
3858 | */ | |
3859 | if (trace.syscalls.events.augmented) { | |
b1a9e253 | 3860 | evlist__for_each_entry(trace.evlist, evsel) { |
cd26ea6d ACM |
3861 | bool raw_syscalls_sys_exit = strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_exit") == 0; |
3862 | ||
3863 | if (raw_syscalls_sys_exit) { | |
3864 | trace.raw_augmented_syscalls = true; | |
3865 | goto init_augmented_syscall_tp; | |
3866 | } | |
3867 | ||
b9b6a2ea ACM |
3868 | if (strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_enter") == 0) { |
3869 | struct perf_evsel *augmented = trace.syscalls.events.augmented; | |
3870 | if (perf_evsel__init_augmented_syscall_tp(augmented, evsel) || | |
3871 | perf_evsel__init_augmented_syscall_tp_args(augmented)) | |
3872 | goto out; | |
3873 | augmented->handler = trace__sys_enter; | |
3874 | } | |
3875 | ||
cd26ea6d | 3876 | if (strstarts(perf_evsel__name(evsel), "syscalls:sys_exit_")) { |
b9b6a2ea | 3877 | struct syscall_tp *sc; |
cd26ea6d | 3878 | init_augmented_syscall_tp: |
b9b6a2ea ACM |
3879 | if (perf_evsel__init_augmented_syscall_tp(evsel, evsel)) |
3880 | goto out; | |
3881 | sc = evsel->priv; | |
3882 | /* | |
3883 | * For now with BPF raw_augmented we hook into | |
3884 | * raw_syscalls:sys_enter and there we get all | |
3885 | * 6 syscall args plus the tracepoint common | |
3886 | * fields and the syscall_nr (another long). | |
3887 | * So we check if that is the case and if so | |
3888 | * don't look after the sc->args_size but | |
3889 | * always after the full raw_syscalls:sys_enter | |
3890 | * payload, which is fixed. | |
3891 | * | |
3892 | * We'll revisit this later to pass | |
3893 | * s->args_size to the BPF augmenter (now | |
3894 | * tools/perf/examples/bpf/augmented_raw_syscalls.c, | |
3895 | * so that it copies only what we need for each | |
3896 | * syscall, like what happens when we use | |
3897 | * syscalls:sys_enter_NAME, so that we reduce | |
3898 | * the kernel/userspace traffic to just what is | |
3899 | * needed for each syscall. | |
3900 | */ | |
3901 | if (trace.raw_augmented_syscalls) | |
3902 | trace.raw_augmented_syscalls_args_size = (6 + 1) * sizeof(long) + sc->id.offset; | |
b1a9e253 ACM |
3903 | perf_evsel__init_augmented_syscall_tp_ret(evsel); |
3904 | evsel->handler = trace__sys_exit; | |
3905 | } | |
3906 | } | |
3907 | } | |
3908 | ||
1e28fe0a SF |
3909 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
3910 | return trace__record(&trace, argc-1, &argv[1]); | |
3911 | ||
3912 | /* summary_only implies summary option, but don't overwrite summary if set */ | |
3913 | if (trace.summary_only) | |
3914 | trace.summary = trace.summary_only; | |
3915 | ||
726f3234 ACM |
3916 | if (!trace.trace_syscalls && !trace.trace_pgfaults && |
3917 | trace.evlist->nr_entries == 0 /* Was --events used? */) { | |
b912885a | 3918 | trace.trace_syscalls = true; |
59247e33 ACM |
3919 | } |
3920 | ||
c24ff998 ACM |
3921 | if (output_name != NULL) { |
3922 | err = trace__open_output(&trace, output_name); | |
3923 | if (err < 0) { | |
3924 | perror("failed to create output file"); | |
3925 | goto out; | |
3926 | } | |
3927 | } | |
3928 | ||
602ad878 | 3929 | err = target__validate(&trace.opts.target); |
32caf0d1 | 3930 | if (err) { |
602ad878 | 3931 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3932 | fprintf(trace.output, "%s", bf); |
3933 | goto out_close; | |
32caf0d1 NK |
3934 | } |
3935 | ||
602ad878 | 3936 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 3937 | if (err) { |
602ad878 | 3938 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3939 | fprintf(trace.output, "%s", bf); |
3940 | goto out_close; | |
514f1c67 ACM |
3941 | } |
3942 | ||
602ad878 | 3943 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
3944 | trace.opts.target.system_wide = true; |
3945 | ||
6810fc91 DA |
3946 | if (input_name) |
3947 | err = trace__replay(&trace); | |
3948 | else | |
3949 | err = trace__run(&trace, argc, argv); | |
1302d88e | 3950 | |
c24ff998 ACM |
3951 | out_close: |
3952 | if (output_name != NULL) | |
3953 | fclose(trace.output); | |
3954 | out: | |
1302d88e | 3955 | return err; |
514f1c67 | 3956 | } |