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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'") | |
a598bb5e ACM |
15 | */ |
16 | ||
4e319027 | 17 | #include <traceevent/event-parse.h> |
988bdb31 | 18 | #include <api/fs/tracing_path.h> |
744fafc7 | 19 | #include <bpf/bpf.h> |
ff7a4f98 | 20 | #include "util/bpf_map.h" |
c3e78a34 | 21 | #include "util/rlimit.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" |
1101f69a | 32 | #include "util/map.h" |
daecf9e0 | 33 | #include "util/symbol.h" |
9a3993d4 | 34 | #include "util/path.h" |
6810fc91 | 35 | #include "util/session.h" |
752fde44 | 36 | #include "util/thread.h" |
4b6ab94e | 37 | #include <subcmd/parse-options.h> |
2ae3a312 | 38 | #include "util/strlist.h" |
bdc89661 | 39 | #include "util/intlist.h" |
514f1c67 | 40 | #include "util/thread_map.h" |
bf2575c1 | 41 | #include "util/stat.h" |
fd5cead2 | 42 | #include "trace/beauty/beauty.h" |
97978b3e | 43 | #include "trace-event.h" |
9aca7f17 | 44 | #include "util/parse-events.h" |
ba504235 | 45 | #include "util/bpf-loader.h" |
566a0885 | 46 | #include "callchain.h" |
fea01392 | 47 | #include "print_binary.h" |
a067558e | 48 | #include "string2.h" |
fd0db102 | 49 | #include "syscalltbl.h" |
96c14451 | 50 | #include "rb_resort.h" |
514f1c67 | 51 | |
a43783ae | 52 | #include <errno.h> |
fd20e811 | 53 | #include <inttypes.h> |
4208735d | 54 | #include <poll.h> |
9607ad3a | 55 | #include <signal.h> |
514f1c67 | 56 | #include <stdlib.h> |
017037ff | 57 | #include <string.h> |
8dd2a131 | 58 | #include <linux/err.h> |
997bba8c | 59 | #include <linux/filter.h> |
877a7a11 | 60 | #include <linux/kernel.h> |
39878d49 | 61 | #include <linux/random.h> |
c6d4a494 | 62 | #include <linux/stringify.h> |
bd48c63e | 63 | #include <linux/time64.h> |
7f7c536f | 64 | #include <linux/zalloc.h> |
bafae98e | 65 | #include <fcntl.h> |
4bcc4cff | 66 | #include <sys/sysmacros.h> |
514f1c67 | 67 | |
3052ba56 | 68 | #include <linux/ctype.h> |
3d689ed6 | 69 | |
c188e7ac ACM |
70 | #ifndef O_CLOEXEC |
71 | # define O_CLOEXEC 02000000 | |
72 | #endif | |
73 | ||
83a51694 ACM |
74 | #ifndef F_LINUX_SPECIFIC_BASE |
75 | # define F_LINUX_SPECIFIC_BASE 1024 | |
76 | #endif | |
77 | ||
d1d438a3 ACM |
78 | struct trace { |
79 | struct perf_tool tool; | |
fd0db102 | 80 | struct syscalltbl *sctbl; |
d1d438a3 | 81 | struct { |
d1d438a3 | 82 | struct syscall *table; |
b27b38ed | 83 | struct bpf_map *map; |
3803a229 ACM |
84 | struct { // per syscall BPF_MAP_TYPE_PROG_ARRAY |
85 | struct bpf_map *sys_enter, | |
86 | *sys_exit; | |
87 | } prog_array; | |
d1d438a3 | 88 | struct { |
32dcd021 | 89 | struct evsel *sys_enter, |
d3d1c4bd ACM |
90 | *sys_exit, |
91 | *augmented; | |
d1d438a3 | 92 | } events; |
5834da7f | 93 | struct bpf_program *unaugmented_prog; |
d1d438a3 | 94 | } syscalls; |
ff7a4f98 ACM |
95 | struct { |
96 | struct bpf_map *map; | |
97 | } dump; | |
d1d438a3 ACM |
98 | struct record_opts opts; |
99 | struct perf_evlist *evlist; | |
100 | struct machine *host; | |
101 | struct thread *current; | |
c8c80570 | 102 | struct bpf_object *bpf_obj; |
9ea42ba4 | 103 | struct cgroup *cgroup; |
d1d438a3 ACM |
104 | u64 base_time; |
105 | FILE *output; | |
106 | unsigned long nr_events; | |
5067a8cd ACM |
107 | unsigned long nr_events_printed; |
108 | unsigned long max_events; | |
d1d438a3 ACM |
109 | struct strlist *ev_qualifier; |
110 | struct { | |
111 | size_t nr; | |
112 | int *entries; | |
113 | } ev_qualifier_ids; | |
d1d438a3 ACM |
114 | struct { |
115 | size_t nr; | |
116 | pid_t *entries; | |
744fafc7 | 117 | struct bpf_map *map; |
d1d438a3 ACM |
118 | } filter_pids; |
119 | double duration_filter; | |
120 | double runtime_ms; | |
121 | struct { | |
122 | u64 vfs_getname, | |
123 | proc_getname; | |
124 | } stats; | |
c6d4a494 | 125 | unsigned int max_stack; |
5cf9c84e | 126 | unsigned int min_stack; |
b9b6a2ea | 127 | int raw_augmented_syscalls_args_size; |
cd26ea6d | 128 | bool raw_augmented_syscalls; |
79d725cd | 129 | bool fd_path_disabled; |
b9b6a2ea | 130 | bool sort_events; |
d1d438a3 ACM |
131 | bool not_ev_qualifier; |
132 | bool live; | |
133 | bool full_time; | |
134 | bool sched; | |
135 | bool multiple_threads; | |
136 | bool summary; | |
137 | bool summary_only; | |
0a6545bd | 138 | bool failure_only; |
d1d438a3 | 139 | bool show_comm; |
591421e1 | 140 | bool print_sample; |
d1d438a3 ACM |
141 | bool show_tool_stats; |
142 | bool trace_syscalls; | |
44621819 | 143 | bool kernel_syscallchains; |
9ed45d59 | 144 | s16 args_alignment; |
b036146f | 145 | bool show_tstamp; |
42e4a52d | 146 | bool show_duration; |
e7c634fc | 147 | bool show_zeros; |
9d6dc178 | 148 | bool show_arg_names; |
c65c83ff | 149 | bool show_string_prefix; |
d1d438a3 ACM |
150 | bool force; |
151 | bool vfs_getname; | |
152 | int trace_pgfaults; | |
028713aa JO |
153 | struct { |
154 | struct ordered_events data; | |
155 | u64 last; | |
156 | } oe; | |
d1d438a3 | 157 | }; |
a1c2552d | 158 | |
77170988 ACM |
159 | struct tp_field { |
160 | int offset; | |
161 | union { | |
162 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
163 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
164 | }; | |
165 | }; | |
166 | ||
167 | #define TP_UINT_FIELD(bits) \ | |
168 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
169 | { \ | |
55d43bca DA |
170 | u##bits value; \ |
171 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
172 | return value; \ | |
77170988 ACM |
173 | } |
174 | ||
175 | TP_UINT_FIELD(8); | |
176 | TP_UINT_FIELD(16); | |
177 | TP_UINT_FIELD(32); | |
178 | TP_UINT_FIELD(64); | |
179 | ||
180 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
181 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
182 | { \ | |
55d43bca DA |
183 | u##bits value; \ |
184 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
185 | return bswap_##bits(value);\ |
186 | } | |
187 | ||
188 | TP_UINT_FIELD__SWAPPED(16); | |
189 | TP_UINT_FIELD__SWAPPED(32); | |
190 | TP_UINT_FIELD__SWAPPED(64); | |
191 | ||
aa823f58 | 192 | static int __tp_field__init_uint(struct tp_field *field, int size, int offset, bool needs_swap) |
77170988 | 193 | { |
aa823f58 | 194 | field->offset = offset; |
77170988 | 195 | |
aa823f58 | 196 | switch (size) { |
77170988 ACM |
197 | case 1: |
198 | field->integer = tp_field__u8; | |
199 | break; | |
200 | case 2: | |
201 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
202 | break; | |
203 | case 4: | |
204 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
205 | break; | |
206 | case 8: | |
207 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
208 | break; | |
209 | default: | |
210 | return -1; | |
211 | } | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
2c92f982 | 216 | static int tp_field__init_uint(struct tp_field *field, struct tep_format_field *format_field, bool needs_swap) |
aa823f58 ACM |
217 | { |
218 | return __tp_field__init_uint(field, format_field->size, format_field->offset, needs_swap); | |
219 | } | |
220 | ||
77170988 ACM |
221 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) |
222 | { | |
223 | return sample->raw_data + field->offset; | |
224 | } | |
225 | ||
aa823f58 | 226 | static int __tp_field__init_ptr(struct tp_field *field, int offset) |
77170988 | 227 | { |
aa823f58 | 228 | field->offset = offset; |
77170988 ACM |
229 | field->pointer = tp_field__ptr; |
230 | return 0; | |
231 | } | |
232 | ||
2c92f982 | 233 | static int tp_field__init_ptr(struct tp_field *field, struct tep_format_field *format_field) |
aa823f58 ACM |
234 | { |
235 | return __tp_field__init_ptr(field, format_field->offset); | |
236 | } | |
237 | ||
77170988 ACM |
238 | struct syscall_tp { |
239 | struct tp_field id; | |
240 | union { | |
241 | struct tp_field args, ret; | |
242 | }; | |
243 | }; | |
244 | ||
32dcd021 | 245 | static int perf_evsel__init_tp_uint_field(struct evsel *evsel, |
77170988 ACM |
246 | struct tp_field *field, |
247 | const char *name) | |
248 | { | |
2c92f982 | 249 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
250 | |
251 | if (format_field == NULL) | |
252 | return -1; | |
253 | ||
254 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
255 | } | |
256 | ||
257 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
258 | ({ struct syscall_tp *sc = evsel->priv;\ | |
259 | perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) | |
260 | ||
32dcd021 | 261 | static int perf_evsel__init_tp_ptr_field(struct evsel *evsel, |
77170988 ACM |
262 | struct tp_field *field, |
263 | const char *name) | |
264 | { | |
2c92f982 | 265 | struct tep_format_field *format_field = perf_evsel__field(evsel, name); |
77170988 ACM |
266 | |
267 | if (format_field == NULL) | |
268 | return -1; | |
269 | ||
270 | return tp_field__init_ptr(field, format_field); | |
271 | } | |
272 | ||
273 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
274 | ({ struct syscall_tp *sc = evsel->priv;\ | |
275 | perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) | |
276 | ||
32dcd021 | 277 | static void perf_evsel__delete_priv(struct evsel *evsel) |
77170988 | 278 | { |
04662523 | 279 | zfree(&evsel->priv); |
77170988 ACM |
280 | perf_evsel__delete(evsel); |
281 | } | |
282 | ||
32dcd021 | 283 | static int perf_evsel__init_syscall_tp(struct evsel *evsel) |
d32855fa ACM |
284 | { |
285 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
286 | ||
287 | if (evsel->priv != NULL) { | |
42da438c ACM |
288 | if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr") && |
289 | perf_evsel__init_tp_uint_field(evsel, &sc->id, "nr")) | |
d32855fa ACM |
290 | goto out_delete; |
291 | return 0; | |
292 | } | |
293 | ||
294 | return -ENOMEM; | |
295 | out_delete: | |
296 | zfree(&evsel->priv); | |
297 | return -ENOENT; | |
298 | } | |
299 | ||
32dcd021 | 300 | static int perf_evsel__init_augmented_syscall_tp(struct evsel *evsel, struct evsel *tp) |
d3d1c4bd ACM |
301 | { |
302 | struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); | |
303 | ||
b9b6a2ea ACM |
304 | if (evsel->priv != NULL) { |
305 | struct tep_format_field *syscall_id = perf_evsel__field(tp, "id"); | |
306 | if (syscall_id == NULL) | |
307 | syscall_id = perf_evsel__field(tp, "__syscall_nr"); | |
308 | if (syscall_id == NULL) | |
309 | goto out_delete; | |
310 | if (__tp_field__init_uint(&sc->id, syscall_id->size, syscall_id->offset, evsel->needs_swap)) | |
d3d1c4bd ACM |
311 | goto out_delete; |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | return -ENOMEM; | |
317 | out_delete: | |
318 | zfree(&evsel->priv); | |
319 | return -EINVAL; | |
320 | } | |
321 | ||
32dcd021 | 322 | static int perf_evsel__init_augmented_syscall_tp_args(struct evsel *evsel) |
d3d1c4bd ACM |
323 | { |
324 | struct syscall_tp *sc = evsel->priv; | |
325 | ||
326 | return __tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64)); | |
327 | } | |
328 | ||
32dcd021 | 329 | static int perf_evsel__init_augmented_syscall_tp_ret(struct evsel *evsel) |
b1a9e253 ACM |
330 | { |
331 | struct syscall_tp *sc = evsel->priv; | |
332 | ||
333 | return __tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap); | |
334 | } | |
335 | ||
32dcd021 | 336 | static int perf_evsel__init_raw_syscall_tp(struct evsel *evsel, void *handler) |
96695d44 NK |
337 | { |
338 | evsel->priv = malloc(sizeof(struct syscall_tp)); | |
339 | if (evsel->priv != NULL) { | |
340 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) | |
341 | goto out_delete; | |
342 | ||
343 | evsel->handler = handler; | |
344 | return 0; | |
345 | } | |
346 | ||
347 | return -ENOMEM; | |
348 | ||
349 | out_delete: | |
04662523 | 350 | zfree(&evsel->priv); |
96695d44 NK |
351 | return -ENOENT; |
352 | } | |
353 | ||
32dcd021 | 354 | static struct evsel *perf_evsel__raw_syscall_newtp(const char *direction, void *handler) |
77170988 | 355 | { |
32dcd021 | 356 | struct evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); |
77170988 | 357 | |
9aca7f17 | 358 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 359 | if (IS_ERR(evsel)) |
9aca7f17 DA |
360 | evsel = perf_evsel__newtp("syscalls", direction); |
361 | ||
8dd2a131 JO |
362 | if (IS_ERR(evsel)) |
363 | return NULL; | |
364 | ||
63f11c80 | 365 | if (perf_evsel__init_raw_syscall_tp(evsel, handler)) |
8dd2a131 | 366 | goto out_delete; |
77170988 ACM |
367 | |
368 | return evsel; | |
369 | ||
370 | out_delete: | |
371 | perf_evsel__delete_priv(evsel); | |
372 | return NULL; | |
373 | } | |
374 | ||
375 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
376 | ({ struct syscall_tp *fields = evsel->priv; \ | |
377 | fields->name.integer(&fields->name, sample); }) | |
378 | ||
379 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
380 | ({ struct syscall_tp *fields = evsel->priv; \ | |
381 | fields->name.pointer(&fields->name, sample); }) | |
382 | ||
c65c83ff | 383 | size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
0ae79636 ACM |
384 | { |
385 | int idx = val - sa->offset; | |
1f115cb7 | 386 | |
9614b8d6 ACM |
387 | if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) { |
388 | size_t printed = scnprintf(bf, size, intfmt, val); | |
389 | if (show_prefix) | |
390 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix); | |
391 | return printed; | |
392 | } | |
1f115cb7 | 393 | |
c65c83ff | 394 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
03e3adc9 ACM |
395 | } |
396 | ||
975b7c2f ACM |
397 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
398 | const char *intfmt, | |
399 | struct syscall_arg *arg) | |
1f115cb7 | 400 | { |
c65c83ff | 401 | return strarray__scnprintf(arg->parm, bf, size, intfmt, arg->show_string_prefix, arg->val); |
1f115cb7 ACM |
402 | } |
403 | ||
975b7c2f ACM |
404 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
405 | struct syscall_arg *arg) | |
406 | { | |
407 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
408 | } | |
409 | ||
1f115cb7 ACM |
410 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
411 | ||
f5b91dbb ACM |
412 | size_t syscall_arg__scnprintf_strarray_flags(char *bf, size_t size, struct syscall_arg *arg) |
413 | { | |
414 | return strarray__scnprintf_flags(arg->parm, bf, size, arg->show_string_prefix, arg->val); | |
415 | } | |
416 | ||
1f2d085e | 417 | size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
83a51694 | 418 | { |
9614b8d6 | 419 | size_t printed; |
83a51694 ACM |
420 | int i; |
421 | ||
422 | for (i = 0; i < sas->nr_entries; ++i) { | |
423 | struct strarray *sa = sas->entries[i]; | |
1f2d085e | 424 | int idx = val - sa->offset; |
83a51694 ACM |
425 | |
426 | if (idx >= 0 && idx < sa->nr_entries) { | |
427 | if (sa->entries[idx] == NULL) | |
428 | break; | |
1f2d085e | 429 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
83a51694 ACM |
430 | } |
431 | } | |
432 | ||
9614b8d6 ACM |
433 | printed = scnprintf(bf, size, intfmt, val); |
434 | if (show_prefix) | |
435 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sas->entries[0]->prefix); | |
436 | return printed; | |
1f2d085e ACM |
437 | } |
438 | ||
439 | size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, | |
440 | struct syscall_arg *arg) | |
441 | { | |
442 | return strarrays__scnprintf(arg->parm, bf, size, "%d", arg->show_string_prefix, arg->val); | |
83a51694 ACM |
443 | } |
444 | ||
48e1f91a ACM |
445 | #ifndef AT_FDCWD |
446 | #define AT_FDCWD -100 | |
447 | #endif | |
448 | ||
75b757ca ACM |
449 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, |
450 | struct syscall_arg *arg) | |
451 | { | |
452 | int fd = arg->val; | |
c65c83ff | 453 | const char *prefix = "AT_FD"; |
75b757ca ACM |
454 | |
455 | if (fd == AT_FDCWD) | |
c65c83ff | 456 | return scnprintf(bf, size, "%s%s", arg->show_string_prefix ? prefix : "", "CWD"); |
75b757ca ACM |
457 | |
458 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
459 | } | |
460 | ||
461 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
462 | ||
463 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
464 | struct syscall_arg *arg); | |
465 | ||
466 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
467 | ||
2c2b1623 | 468 | size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg) |
13d4ff3e | 469 | { |
01533e97 | 470 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
471 | } |
472 | ||
ce05539f ACM |
473 | size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg) |
474 | { | |
475 | if (arg->val == 0) | |
476 | return scnprintf(bf, size, "NULL"); | |
477 | return syscall_arg__scnprintf_hex(bf, size, arg); | |
478 | } | |
479 | ||
2c2b1623 | 480 | size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg) |
a1c2552d ACM |
481 | { |
482 | return scnprintf(bf, size, "%d", arg->val); | |
483 | } | |
484 | ||
5dde91ed ACM |
485 | size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg) |
486 | { | |
487 | return scnprintf(bf, size, "%ld", arg->val); | |
488 | } | |
489 | ||
729a7841 ACM |
490 | static const char *bpf_cmd[] = { |
491 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
492 | "MAP_GET_NEXT_KEY", "PROG_LOAD", | |
493 | }; | |
2e3d7fac | 494 | static DEFINE_STRARRAY(bpf_cmd, "BPF_"); |
729a7841 | 495 | |
f6af0956 ACM |
496 | static const char *fsmount_flags[] = { |
497 | [1] = "CLOEXEC", | |
498 | }; | |
499 | static DEFINE_STRARRAY(fsmount_flags, "FSMOUNT_"); | |
500 | ||
dcc6fd64 ACM |
501 | #include "trace/beauty/generated/fsconfig_arrays.c" |
502 | ||
503 | static DEFINE_STRARRAY(fsconfig_cmds, "FSCONFIG_"); | |
504 | ||
03e3adc9 | 505 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
2e3d7fac | 506 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, "EPOLL_CTL_", 1); |
eac032c5 | 507 | |
1f115cb7 | 508 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
2e3d7fac | 509 | static DEFINE_STRARRAY(itimers, "ITIMER_"); |
1f115cb7 | 510 | |
b62bee1b ACM |
511 | static const char *keyctl_options[] = { |
512 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
513 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
514 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
515 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
516 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
517 | }; | |
2e3d7fac | 518 | static DEFINE_STRARRAY(keyctl_options, "KEYCTL_"); |
b62bee1b | 519 | |
efe6b882 ACM |
520 | static const char *whences[] = { "SET", "CUR", "END", |
521 | #ifdef SEEK_DATA | |
522 | "DATA", | |
523 | #endif | |
524 | #ifdef SEEK_HOLE | |
525 | "HOLE", | |
526 | #endif | |
527 | }; | |
2e3d7fac | 528 | static DEFINE_STRARRAY(whences, "SEEK_"); |
f9da0b0c | 529 | |
80f587d5 ACM |
530 | static const char *fcntl_cmds[] = { |
531 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
e000e5e3 ACM |
532 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "GETLK64", |
533 | "SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX", | |
534 | "GETOWNER_UIDS", | |
80f587d5 | 535 | }; |
2e3d7fac | 536 | static DEFINE_STRARRAY(fcntl_cmds, "F_"); |
80f587d5 | 537 | |
83a51694 ACM |
538 | static const char *fcntl_linux_specific_cmds[] = { |
539 | "SETLEASE", "GETLEASE", "NOTIFY", [5] = "CANCELLK", "DUPFD_CLOEXEC", | |
540 | "SETPIPE_SZ", "GETPIPE_SZ", "ADD_SEALS", "GET_SEALS", | |
64e4561d | 541 | "GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT", |
83a51694 ACM |
542 | }; |
543 | ||
2e3d7fac | 544 | static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, "F_", F_LINUX_SPECIFIC_BASE); |
83a51694 ACM |
545 | |
546 | static struct strarray *fcntl_cmds_arrays[] = { | |
547 | &strarray__fcntl_cmds, | |
548 | &strarray__fcntl_linux_specific_cmds, | |
549 | }; | |
550 | ||
551 | static DEFINE_STRARRAYS(fcntl_cmds_arrays); | |
552 | ||
c045bf02 ACM |
553 | static const char *rlimit_resources[] = { |
554 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
555 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
556 | "RTTIME", | |
557 | }; | |
2e3d7fac | 558 | static DEFINE_STRARRAY(rlimit_resources, "RLIMIT_"); |
c045bf02 | 559 | |
eb5b1b14 | 560 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
2e3d7fac | 561 | static DEFINE_STRARRAY(sighow, "SIG_"); |
eb5b1b14 | 562 | |
4f8c1b74 DA |
563 | static const char *clockid[] = { |
564 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
565 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
566 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 | 567 | }; |
2e3d7fac | 568 | static DEFINE_STRARRAY(clockid, "CLOCK_"); |
4f8c1b74 | 569 | |
51108999 ACM |
570 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
571 | struct syscall_arg *arg) | |
572 | { | |
c65c83ff ACM |
573 | bool show_prefix = arg->show_string_prefix; |
574 | const char *suffix = "_OK"; | |
51108999 ACM |
575 | size_t printed = 0; |
576 | int mode = arg->val; | |
577 | ||
578 | if (mode == F_OK) /* 0 */ | |
c65c83ff | 579 | return scnprintf(bf, size, "F%s", show_prefix ? suffix : ""); |
51108999 ACM |
580 | #define P_MODE(n) \ |
581 | if (mode & n##_OK) { \ | |
c65c83ff | 582 | printed += scnprintf(bf + printed, size - printed, "%s%s", #n, show_prefix ? suffix : ""); \ |
51108999 ACM |
583 | mode &= ~n##_OK; \ |
584 | } | |
585 | ||
586 | P_MODE(R); | |
587 | P_MODE(W); | |
588 | P_MODE(X); | |
589 | #undef P_MODE | |
590 | ||
591 | if (mode) | |
592 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
593 | ||
594 | return printed; | |
595 | } | |
596 | ||
597 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
598 | ||
f994592d ACM |
599 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
600 | struct syscall_arg *arg); | |
601 | ||
602 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
603 | ||
46cce19b ACM |
604 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
605 | struct syscall_arg *arg) | |
606 | { | |
c65c83ff ACM |
607 | bool show_prefix = arg->show_string_prefix; |
608 | const char *prefix = "O_"; | |
46cce19b ACM |
609 | int printed = 0, flags = arg->val; |
610 | ||
611 | #define P_FLAG(n) \ | |
612 | if (flags & O_##n) { \ | |
c65c83ff | 613 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
46cce19b ACM |
614 | flags &= ~O_##n; \ |
615 | } | |
616 | ||
617 | P_FLAG(CLOEXEC); | |
618 | P_FLAG(NONBLOCK); | |
619 | #undef P_FLAG | |
620 | ||
621 | if (flags) | |
622 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
623 | ||
624 | return printed; | |
625 | } | |
626 | ||
627 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
628 | ||
a355a61e ACM |
629 | #ifndef GRND_NONBLOCK |
630 | #define GRND_NONBLOCK 0x0001 | |
631 | #endif | |
632 | #ifndef GRND_RANDOM | |
633 | #define GRND_RANDOM 0x0002 | |
634 | #endif | |
635 | ||
39878d49 ACM |
636 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
637 | struct syscall_arg *arg) | |
638 | { | |
c65c83ff ACM |
639 | bool show_prefix = arg->show_string_prefix; |
640 | const char *prefix = "GRND_"; | |
39878d49 ACM |
641 | int printed = 0, flags = arg->val; |
642 | ||
643 | #define P_FLAG(n) \ | |
644 | if (flags & GRND_##n) { \ | |
c65c83ff | 645 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
39878d49 ACM |
646 | flags &= ~GRND_##n; \ |
647 | } | |
648 | ||
649 | P_FLAG(RANDOM); | |
650 | P_FLAG(NONBLOCK); | |
651 | #undef P_FLAG | |
652 | ||
653 | if (flags) | |
654 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
655 | ||
656 | return printed; | |
657 | } | |
658 | ||
659 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
660 | ||
82d4a110 ACM |
661 | #define STRARRAY(name, array) \ |
662 | { .scnprintf = SCA_STRARRAY, \ | |
663 | .parm = &strarray__##array, } | |
453350dd | 664 | |
f6af0956 ACM |
665 | #define STRARRAY_FLAGS(name, array) \ |
666 | { .scnprintf = SCA_STRARRAY_FLAGS, \ | |
667 | .parm = &strarray__##array, } | |
668 | ||
092bd3cd | 669 | #include "trace/beauty/arch_errno_names.c" |
ea8dc3ce | 670 | #include "trace/beauty/eventfd.c" |
d5d71e86 | 671 | #include "trace/beauty/futex_op.c" |
3258abe0 | 672 | #include "trace/beauty/futex_val3.c" |
df4cb167 | 673 | #include "trace/beauty/mmap.c" |
ba2f22cf | 674 | #include "trace/beauty/mode_t.c" |
a30e6259 | 675 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 676 | #include "trace/beauty/open_flags.c" |
62de344e | 677 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 678 | #include "trace/beauty/pid.c" |
a3bca91f | 679 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 680 | #include "trace/beauty/seccomp.c" |
12199d8e | 681 | #include "trace/beauty/signum.c" |
bbf86c43 | 682 | #include "trace/beauty/socket_type.c" |
7206b900 | 683 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 684 | |
82d4a110 ACM |
685 | struct syscall_arg_fmt { |
686 | size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg); | |
496fd346 | 687 | unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val); |
82d4a110 | 688 | void *parm; |
c51bdfec | 689 | const char *name; |
d47737d5 | 690 | bool show_zero; |
82d4a110 ACM |
691 | }; |
692 | ||
514f1c67 ACM |
693 | static struct syscall_fmt { |
694 | const char *name; | |
aec1930b | 695 | const char *alias; |
6ff8fff4 ACM |
696 | struct { |
697 | const char *sys_enter, | |
698 | *sys_exit; | |
699 | } bpf_prog_name; | |
82d4a110 | 700 | struct syscall_arg_fmt arg[6]; |
332337da | 701 | u8 nr_args; |
11c8e39f | 702 | bool errpid; |
514f1c67 | 703 | bool timeout; |
04b34729 | 704 | bool hexret; |
514f1c67 | 705 | } syscall_fmts[] = { |
1f63139c | 706 | { .name = "access", |
82d4a110 | 707 | .arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, }, |
fb7068e7 ACM |
708 | { .name = "arch_prctl", |
709 | .arg = { [0] = { .scnprintf = SCA_X86_ARCH_PRCTL_CODE, /* code */ }, | |
710 | [1] = { .scnprintf = SCA_PTR, /* arg2 */ }, }, }, | |
02ef2884 | 711 | { .name = "bind", |
ef969ca6 | 712 | .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ }, |
247dd65b ACM |
713 | [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, |
714 | [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, }, | |
1f63139c | 715 | { .name = "bpf", |
82d4a110 | 716 | .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, }, |
beccb2b5 | 717 | { .name = "brk", .hexret = true, |
ce05539f | 718 | .arg = { [0] = { .scnprintf = SCA_PTR, /* brk */ }, }, }, |
1f63139c | 719 | { .name = "clock_gettime", |
82d4a110 | 720 | .arg = { [0] = STRARRAY(clk_id, clockid), }, }, |
33396a3a ACM |
721 | { .name = "clone", .errpid = true, .nr_args = 5, |
722 | .arg = { [0] = { .name = "flags", .scnprintf = SCA_CLONE_FLAGS, }, | |
723 | [1] = { .name = "child_stack", .scnprintf = SCA_HEX, }, | |
724 | [2] = { .name = "parent_tidptr", .scnprintf = SCA_HEX, }, | |
725 | [3] = { .name = "child_tidptr", .scnprintf = SCA_HEX, }, | |
726 | [4] = { .name = "tls", .scnprintf = SCA_HEX, }, }, }, | |
1f63139c | 727 | { .name = "close", |
82d4a110 | 728 | .arg = { [0] = { .scnprintf = SCA_CLOSE_FD, /* fd */ }, }, }, |
d5a7e661 | 729 | { .name = "connect", |
ef969ca6 ACM |
730 | .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ }, |
731 | [1] = { .scnprintf = SCA_SOCKADDR, /* servaddr */ }, | |
1d862752 | 732 | [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, }, |
1f63139c | 733 | { .name = "epoll_ctl", |
82d4a110 | 734 | .arg = { [1] = STRARRAY(op, epoll_ctl_ops), }, }, |
1f63139c | 735 | { .name = "eventfd2", |
82d4a110 | 736 | .arg = { [1] = { .scnprintf = SCA_EFD_FLAGS, /* flags */ }, }, }, |
1f63139c | 737 | { .name = "fchmodat", |
82d4a110 | 738 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 739 | { .name = "fchownat", |
82d4a110 | 740 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 741 | { .name = "fcntl", |
82d4a110 | 742 | .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */ |
39cc355b ACM |
743 | .parm = &strarrays__fcntl_cmds_arrays, |
744 | .show_zero = true, }, | |
82d4a110 | 745 | [2] = { .scnprintf = SCA_FCNTL_ARG, /* arg */ }, }, }, |
1f63139c | 746 | { .name = "flock", |
82d4a110 | 747 | .arg = { [1] = { .scnprintf = SCA_FLOCK, /* cmd */ }, }, }, |
dcc6fd64 ACM |
748 | { .name = "fsconfig", |
749 | .arg = { [1] = STRARRAY(cmd, fsconfig_cmds), }, }, | |
f6af0956 ACM |
750 | { .name = "fsmount", |
751 | .arg = { [1] = STRARRAY_FLAGS(flags, fsmount_flags), | |
752 | [2] = { .scnprintf = SCA_FSMOUNT_ATTR_FLAGS, /* attr_flags */ }, }, }, | |
693bd394 ACM |
753 | { .name = "fspick", |
754 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, | |
755 | [1] = { .scnprintf = SCA_FILENAME, /* path */ }, | |
756 | [2] = { .scnprintf = SCA_FSPICK_FLAGS, /* flags */ }, }, }, | |
1f63139c ACM |
757 | { .name = "fstat", .alias = "newfstat", }, |
758 | { .name = "fstatat", .alias = "newfstatat", }, | |
759 | { .name = "futex", | |
3258abe0 ACM |
760 | .arg = { [1] = { .scnprintf = SCA_FUTEX_OP, /* op */ }, |
761 | [5] = { .scnprintf = SCA_FUTEX_VAL3, /* val3 */ }, }, }, | |
1f63139c | 762 | { .name = "futimesat", |
82d4a110 | 763 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 764 | { .name = "getitimer", |
82d4a110 | 765 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
c65f1070 | 766 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 767 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 768 | { .name = "getppid", .errpid = true, }, |
1f63139c | 769 | { .name = "getrandom", |
82d4a110 | 770 | .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, }, |
1f63139c | 771 | { .name = "getrlimit", |
82d4a110 | 772 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
2d1073de | 773 | { .name = "gettid", .errpid = true, }, |
1f63139c | 774 | { .name = "ioctl", |
82d4a110 | 775 | .arg = { |
844ae5b4 ACM |
776 | #if defined(__i386__) || defined(__x86_64__) |
777 | /* | |
778 | * FIXME: Make this available to all arches. | |
779 | */ | |
1cc47f2d | 780 | [1] = { .scnprintf = SCA_IOCTL_CMD, /* cmd */ }, |
82d4a110 | 781 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 782 | #else |
82d4a110 | 783 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 784 | #endif |
1de3038d ACM |
785 | { .name = "kcmp", .nr_args = 5, |
786 | .arg = { [0] = { .name = "pid1", .scnprintf = SCA_PID, }, | |
787 | [1] = { .name = "pid2", .scnprintf = SCA_PID, }, | |
788 | [2] = { .name = "type", .scnprintf = SCA_KCMP_TYPE, }, | |
789 | [3] = { .name = "idx1", .scnprintf = SCA_KCMP_IDX, }, | |
790 | [4] = { .name = "idx2", .scnprintf = SCA_KCMP_IDX, }, }, }, | |
1f63139c | 791 | { .name = "keyctl", |
82d4a110 | 792 | .arg = { [0] = STRARRAY(option, keyctl_options), }, }, |
1f63139c | 793 | { .name = "kill", |
82d4a110 | 794 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 795 | { .name = "linkat", |
82d4a110 | 796 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 797 | { .name = "lseek", |
82d4a110 | 798 | .arg = { [2] = STRARRAY(whence, whences), }, }, |
1f63139c ACM |
799 | { .name = "lstat", .alias = "newlstat", }, |
800 | { .name = "madvise", | |
82d4a110 ACM |
801 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
802 | [2] = { .scnprintf = SCA_MADV_BHV, /* behavior */ }, }, }, | |
1f63139c | 803 | { .name = "mkdirat", |
82d4a110 | 804 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 805 | { .name = "mknodat", |
82d4a110 | 806 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
beccb2b5 | 807 | { .name = "mmap", .hexret = true, |
54265664 JO |
808 | /* The standard mmap maps to old_mmap on s390x */ |
809 | #if defined(__s390x__) | |
810 | .alias = "old_mmap", | |
811 | #endif | |
ce05539f | 812 | .arg = { [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, |
a6631340 ACM |
813 | [3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */ }, |
814 | [5] = { .scnprintf = SCA_HEX, /* offset */ }, }, }, | |
73d141ad | 815 | { .name = "mount", |
23c07a23 ACM |
816 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ }, |
817 | [3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */ | |
73d141ad | 818 | .mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, }, |
566e3022 ACM |
819 | { .name = "move_mount", |
820 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* from_dfd */ }, | |
821 | [1] = { .scnprintf = SCA_FILENAME, /* from_pathname */ }, | |
822 | [2] = { .scnprintf = SCA_FDAT, /* to_dfd */ }, | |
823 | [3] = { .scnprintf = SCA_FILENAME, /* to_pathname */ }, | |
824 | [4] = { .scnprintf = SCA_MOVE_MOUNT_FLAGS, /* flags */ }, }, }, | |
1f63139c | 825 | { .name = "mprotect", |
82d4a110 ACM |
826 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
827 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, }, | |
1f63139c | 828 | { .name = "mq_unlink", |
82d4a110 | 829 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, }, |
ae685380 | 830 | { .name = "mremap", .hexret = true, |
ce05539f | 831 | .arg = { [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, }, }, |
1f63139c | 832 | { .name = "name_to_handle_at", |
82d4a110 | 833 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 834 | { .name = "newfstatat", |
82d4a110 | 835 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 836 | { .name = "open", |
82d4a110 | 837 | .arg = { [1] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, |
1f63139c | 838 | { .name = "open_by_handle_at", |
82d4a110 ACM |
839 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
840 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 841 | { .name = "openat", |
82d4a110 ACM |
842 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
843 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 844 | { .name = "perf_event_open", |
82d4a110 ACM |
845 | .arg = { [2] = { .scnprintf = SCA_INT, /* cpu */ }, |
846 | [3] = { .scnprintf = SCA_FD, /* group_fd */ }, | |
847 | [4] = { .scnprintf = SCA_PERF_FLAGS, /* flags */ }, }, }, | |
1f63139c | 848 | { .name = "pipe2", |
82d4a110 | 849 | .arg = { [1] = { .scnprintf = SCA_PIPE_FLAGS, /* flags */ }, }, }, |
83bc9c37 ACM |
850 | { .name = "pkey_alloc", |
851 | .arg = { [1] = { .scnprintf = SCA_PKEY_ALLOC_ACCESS_RIGHTS, /* access_rights */ }, }, }, | |
852 | { .name = "pkey_free", | |
853 | .arg = { [0] = { .scnprintf = SCA_INT, /* key */ }, }, }, | |
854 | { .name = "pkey_mprotect", | |
855 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, | |
856 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, | |
857 | [3] = { .scnprintf = SCA_INT, /* pkey */ }, }, }, | |
1f63139c ACM |
858 | { .name = "poll", .timeout = true, }, |
859 | { .name = "ppoll", .timeout = true, }, | |
fb7068e7 | 860 | { .name = "prctl", |
d688d037 ACM |
861 | .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */ }, |
862 | [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ }, | |
863 | [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, }, | |
1f63139c ACM |
864 | { .name = "pread", .alias = "pread64", }, |
865 | { .name = "preadv", .alias = "pread", }, | |
866 | { .name = "prlimit64", | |
82d4a110 | 867 | .arg = { [1] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c ACM |
868 | { .name = "pwrite", .alias = "pwrite64", }, |
869 | { .name = "readlinkat", | |
82d4a110 | 870 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 871 | { .name = "recvfrom", |
82d4a110 | 872 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 873 | { .name = "recvmmsg", |
82d4a110 | 874 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 875 | { .name = "recvmsg", |
82d4a110 | 876 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 877 | { .name = "renameat", |
436651ca ACM |
878 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, |
879 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, }, }, | |
84a83541 ACM |
880 | { .name = "renameat2", |
881 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, | |
ca7ff2c8 ACM |
882 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, |
883 | [4] = { .scnprintf = SCA_RENAMEAT2_FLAGS, /* flags */ }, }, }, | |
1f63139c | 884 | { .name = "rt_sigaction", |
82d4a110 | 885 | .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 886 | { .name = "rt_sigprocmask", |
82d4a110 | 887 | .arg = { [0] = STRARRAY(how, sighow), }, }, |
1f63139c | 888 | { .name = "rt_sigqueueinfo", |
82d4a110 | 889 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 890 | { .name = "rt_tgsigqueueinfo", |
82d4a110 | 891 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 892 | { .name = "sched_setscheduler", |
82d4a110 | 893 | .arg = { [1] = { .scnprintf = SCA_SCHED_POLICY, /* policy */ }, }, }, |
1f63139c | 894 | { .name = "seccomp", |
82d4a110 ACM |
895 | .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP, /* op */ }, |
896 | [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, }, | |
1f63139c | 897 | { .name = "select", .timeout = true, }, |
e4b00e93 | 898 | { .name = "sendfile", .alias = "sendfile64", }, |
1f63139c | 899 | { .name = "sendmmsg", |
82d4a110 | 900 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 901 | { .name = "sendmsg", |
82d4a110 | 902 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 903 | { .name = "sendto", |
6ebb6862 ACM |
904 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, |
905 | [4] = { .scnprintf = SCA_SOCKADDR, /* addr */ }, }, }, | |
c65f1070 | 906 | { .name = "set_tid_address", .errpid = true, }, |
1f63139c | 907 | { .name = "setitimer", |
82d4a110 | 908 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
1f63139c | 909 | { .name = "setrlimit", |
82d4a110 | 910 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c | 911 | { .name = "socket", |
82d4a110 | 912 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
913 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
914 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c | 915 | { .name = "socketpair", |
82d4a110 | 916 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
917 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
918 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c ACM |
919 | { .name = "stat", .alias = "newstat", }, |
920 | { .name = "statx", | |
82d4a110 ACM |
921 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ }, |
922 | [2] = { .scnprintf = SCA_STATX_FLAGS, /* flags */ } , | |
923 | [3] = { .scnprintf = SCA_STATX_MASK, /* mask */ }, }, }, | |
1f63139c | 924 | { .name = "swapoff", |
82d4a110 | 925 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 926 | { .name = "swapon", |
82d4a110 | 927 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 928 | { .name = "symlinkat", |
82d4a110 | 929 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
a9a187a7 ACM |
930 | { .name = "sync_file_range", |
931 | .arg = { [3] = { .scnprintf = SCA_SYNC_FILE_RANGE_FLAGS, /* flags */ }, }, }, | |
1f63139c | 932 | { .name = "tgkill", |
82d4a110 | 933 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 934 | { .name = "tkill", |
82d4a110 | 935 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
476c92ca ACM |
936 | { .name = "umount2", .alias = "umount", |
937 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, }, | |
1f63139c ACM |
938 | { .name = "uname", .alias = "newuname", }, |
939 | { .name = "unlinkat", | |
82d4a110 | 940 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 941 | { .name = "utimensat", |
82d4a110 | 942 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dirfd */ }, }, }, |
11c8e39f | 943 | { .name = "wait4", .errpid = true, |
82d4a110 | 944 | .arg = { [2] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
11c8e39f | 945 | { .name = "waitid", .errpid = true, |
82d4a110 | 946 | .arg = { [3] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
514f1c67 ACM |
947 | }; |
948 | ||
949 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
950 | { | |
951 | const struct syscall_fmt *fmt = fmtp; | |
952 | return strcmp(name, fmt->name); | |
953 | } | |
954 | ||
955 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
956 | { | |
957 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
958 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
959 | } | |
960 | ||
f932184e ACM |
961 | static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias) |
962 | { | |
963 | int i, nmemb = ARRAY_SIZE(syscall_fmts); | |
964 | ||
965 | for (i = 0; i < nmemb; ++i) { | |
966 | if (syscall_fmts[i].alias && strcmp(syscall_fmts[i].alias, alias) == 0) | |
967 | return &syscall_fmts[i]; | |
968 | } | |
969 | ||
970 | return NULL; | |
971 | } | |
972 | ||
6a648b53 ACM |
973 | /* |
974 | * is_exit: is this "exit" or "exit_group"? | |
975 | * is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter. | |
7a983a0f | 976 | * args_size: sum of the sizes of the syscall arguments, anything after that is augmented stuff: pathname for openat, etc. |
b8b1033f | 977 | * nonexistent: Just a hole in the syscall table, syscall id not allocated |
6a648b53 | 978 | */ |
514f1c67 | 979 | struct syscall { |
97fbf3f0 | 980 | struct tep_event *tp_format; |
f208bd8d | 981 | int nr_args; |
7a983a0f | 982 | int args_size; |
6ff8fff4 ACM |
983 | struct { |
984 | struct bpf_program *sys_enter, | |
985 | *sys_exit; | |
986 | } bpf_prog; | |
6a648b53 ACM |
987 | bool is_exit; |
988 | bool is_open; | |
b8b1033f | 989 | bool nonexistent; |
2c92f982 | 990 | struct tep_format_field *args; |
514f1c67 ACM |
991 | const char *name; |
992 | struct syscall_fmt *fmt; | |
82d4a110 | 993 | struct syscall_arg_fmt *arg_fmt; |
514f1c67 ACM |
994 | }; |
995 | ||
4cae8675 ACM |
996 | /* |
997 | * Must match what is in the BPF program: | |
998 | * | |
999 | * tools/perf/examples/bpf/augmented_raw_syscalls.c | |
1000 | */ | |
bbab50dd ACM |
1001 | struct bpf_map_syscall_entry { |
1002 | bool enabled; | |
4cae8675 | 1003 | u16 string_args_len[6]; |
bbab50dd ACM |
1004 | }; |
1005 | ||
fd2b2975 ACM |
1006 | /* |
1007 | * We need to have this 'calculated' boolean because in some cases we really | |
1008 | * don't know what is the duration of a syscall, for instance, when we start | |
1009 | * a session and some threads are waiting for a syscall to finish, say 'poll', | |
1010 | * in which case all we can do is to print "( ? ) for duration and for the | |
1011 | * start timestamp. | |
1012 | */ | |
1013 | static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp) | |
60c907ab ACM |
1014 | { |
1015 | double duration = (double)t / NSEC_PER_MSEC; | |
1016 | size_t printed = fprintf(fp, "("); | |
1017 | ||
fd2b2975 | 1018 | if (!calculated) |
522283fe | 1019 | printed += fprintf(fp, " "); |
fd2b2975 | 1020 | else if (duration >= 1.0) |
60c907ab ACM |
1021 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); |
1022 | else if (duration >= 0.01) | |
1023 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
1024 | else | |
1025 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 1026 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
1027 | } |
1028 | ||
f994592d ACM |
1029 | /** |
1030 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
1031 | * filename.entry_str_pos: Where to insert the string translated from | |
1032 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
84486caa ACM |
1033 | * ret_scnprintf: syscall args may set this to a different syscall return |
1034 | * formatter, for instance, fcntl may return fds, file flags, etc. | |
f994592d | 1035 | */ |
752fde44 ACM |
1036 | struct thread_trace { |
1037 | u64 entry_time; | |
752fde44 | 1038 | bool entry_pending; |
efd5745e | 1039 | unsigned long nr_events; |
a2ea67d7 | 1040 | unsigned long pfmaj, pfmin; |
752fde44 | 1041 | char *entry_str; |
1302d88e | 1042 | double runtime_ms; |
7ee57434 | 1043 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
f994592d ACM |
1044 | struct { |
1045 | unsigned long ptr; | |
7f4f8001 ACM |
1046 | short int entry_str_pos; |
1047 | bool pending_open; | |
1048 | unsigned int namelen; | |
1049 | char *name; | |
f994592d | 1050 | } filename; |
75b757ca | 1051 | struct { |
f4a74fcb ACM |
1052 | int max; |
1053 | struct file *table; | |
1054 | } files; | |
bf2575c1 DA |
1055 | |
1056 | struct intlist *syscall_stats; | |
752fde44 ACM |
1057 | }; |
1058 | ||
1059 | static struct thread_trace *thread_trace__new(void) | |
1060 | { | |
75b757ca ACM |
1061 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
1062 | ||
7a6d49dc | 1063 | if (ttrace) { |
f4a74fcb | 1064 | ttrace->files.max = -1; |
7a6d49dc LY |
1065 | ttrace->syscall_stats = intlist__new(NULL); |
1066 | } | |
bf2575c1 | 1067 | |
75b757ca | 1068 | return ttrace; |
752fde44 ACM |
1069 | } |
1070 | ||
c24ff998 | 1071 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 1072 | { |
efd5745e ACM |
1073 | struct thread_trace *ttrace; |
1074 | ||
752fde44 ACM |
1075 | if (thread == NULL) |
1076 | goto fail; | |
1077 | ||
89dceb22 NK |
1078 | if (thread__priv(thread) == NULL) |
1079 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 1080 | |
89dceb22 | 1081 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
1082 | goto fail; |
1083 | ||
89dceb22 | 1084 | ttrace = thread__priv(thread); |
efd5745e ACM |
1085 | ++ttrace->nr_events; |
1086 | ||
1087 | return ttrace; | |
752fde44 | 1088 | fail: |
c24ff998 | 1089 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
1090 | "WARNING: not enough memory, dropping samples!\n"); |
1091 | return NULL; | |
1092 | } | |
1093 | ||
84486caa ACM |
1094 | |
1095 | void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg, | |
7ee57434 | 1096 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg)) |
84486caa ACM |
1097 | { |
1098 | struct thread_trace *ttrace = thread__priv(arg->thread); | |
1099 | ||
1100 | ttrace->ret_scnprintf = ret_scnprintf; | |
1101 | } | |
1102 | ||
598d02c5 SF |
1103 | #define TRACE_PFMAJ (1 << 0) |
1104 | #define TRACE_PFMIN (1 << 1) | |
1105 | ||
e4d44e83 ACM |
1106 | static const size_t trace__entry_str_size = 2048; |
1107 | ||
d7e13484 | 1108 | static struct file *thread_trace__files_entry(struct thread_trace *ttrace, int fd) |
75b757ca | 1109 | { |
05107486 ACM |
1110 | if (fd < 0) |
1111 | return NULL; | |
1112 | ||
f4a74fcb ACM |
1113 | if (fd > ttrace->files.max) { |
1114 | struct file *nfiles = realloc(ttrace->files.table, (fd + 1) * sizeof(struct file)); | |
75b757ca | 1115 | |
f4a74fcb | 1116 | if (nfiles == NULL) |
d7e13484 | 1117 | return NULL; |
75b757ca | 1118 | |
f4a74fcb ACM |
1119 | if (ttrace->files.max != -1) { |
1120 | memset(nfiles + ttrace->files.max + 1, 0, | |
1121 | (fd - ttrace->files.max) * sizeof(struct file)); | |
75b757ca | 1122 | } else { |
f4a74fcb | 1123 | memset(nfiles, 0, (fd + 1) * sizeof(struct file)); |
75b757ca ACM |
1124 | } |
1125 | ||
f4a74fcb ACM |
1126 | ttrace->files.table = nfiles; |
1127 | ttrace->files.max = fd; | |
75b757ca ACM |
1128 | } |
1129 | ||
d7e13484 ACM |
1130 | return ttrace->files.table + fd; |
1131 | } | |
1132 | ||
2d473389 ACM |
1133 | struct file *thread__files_entry(struct thread *thread, int fd) |
1134 | { | |
1135 | return thread_trace__files_entry(thread__priv(thread), fd); | |
1136 | } | |
1137 | ||
d7e13484 ACM |
1138 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
1139 | { | |
1140 | struct thread_trace *ttrace = thread__priv(thread); | |
1141 | struct file *file = thread_trace__files_entry(ttrace, fd); | |
1142 | ||
1143 | if (file != NULL) { | |
4bcc4cff ACM |
1144 | struct stat st; |
1145 | if (stat(pathname, &st) == 0) | |
1146 | file->dev_maj = major(st.st_rdev); | |
d7e13484 ACM |
1147 | file->pathname = strdup(pathname); |
1148 | if (file->pathname) | |
1149 | return 0; | |
1150 | } | |
75b757ca | 1151 | |
d7e13484 | 1152 | return -1; |
75b757ca ACM |
1153 | } |
1154 | ||
97119f37 ACM |
1155 | static int thread__read_fd_path(struct thread *thread, int fd) |
1156 | { | |
1157 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
1158 | struct stat st; | |
1159 | int ret; | |
1160 | ||
1161 | if (thread->pid_ == thread->tid) { | |
1162 | scnprintf(linkname, sizeof(linkname), | |
1163 | "/proc/%d/fd/%d", thread->pid_, fd); | |
1164 | } else { | |
1165 | scnprintf(linkname, sizeof(linkname), | |
1166 | "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); | |
1167 | } | |
1168 | ||
1169 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
1170 | return -1; | |
1171 | ||
1172 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
1173 | ||
1174 | if (ret < 0 || ret > st.st_size) | |
1175 | return -1; | |
1176 | ||
1177 | pathname[ret] = '\0'; | |
1178 | return trace__set_fd_pathname(thread, fd, pathname); | |
1179 | } | |
1180 | ||
c522739d ACM |
1181 | static const char *thread__fd_path(struct thread *thread, int fd, |
1182 | struct trace *trace) | |
75b757ca | 1183 | { |
89dceb22 | 1184 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca | 1185 | |
79d725cd | 1186 | if (ttrace == NULL || trace->fd_path_disabled) |
75b757ca ACM |
1187 | return NULL; |
1188 | ||
1189 | if (fd < 0) | |
1190 | return NULL; | |
1191 | ||
f4a74fcb | 1192 | if ((fd > ttrace->files.max || ttrace->files.table[fd].pathname == NULL)) { |
c522739d ACM |
1193 | if (!trace->live) |
1194 | return NULL; | |
1195 | ++trace->stats.proc_getname; | |
cdcd1e6b | 1196 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
1197 | return NULL; |
1198 | } | |
75b757ca | 1199 | |
f4a74fcb | 1200 | return ttrace->files.table[fd].pathname; |
75b757ca ACM |
1201 | } |
1202 | ||
fc65eb82 | 1203 | size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg) |
75b757ca ACM |
1204 | { |
1205 | int fd = arg->val; | |
1206 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 1207 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
1208 | |
1209 | if (path) | |
1210 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1211 | ||
1212 | return printed; | |
1213 | } | |
1214 | ||
0a2f7540 ACM |
1215 | size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size) |
1216 | { | |
1217 | size_t printed = scnprintf(bf, size, "%d", fd); | |
1218 | struct thread *thread = machine__find_thread(trace->host, pid, pid); | |
1219 | ||
1220 | if (thread) { | |
1221 | const char *path = thread__fd_path(thread, fd, trace); | |
1222 | ||
1223 | if (path) | |
1224 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1225 | ||
1226 | thread__put(thread); | |
1227 | } | |
1228 | ||
1229 | return printed; | |
1230 | } | |
1231 | ||
75b757ca ACM |
1232 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, |
1233 | struct syscall_arg *arg) | |
1234 | { | |
1235 | int fd = arg->val; | |
1236 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 1237 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 1238 | |
f4a74fcb ACM |
1239 | if (ttrace && fd >= 0 && fd <= ttrace->files.max) |
1240 | zfree(&ttrace->files.table[fd].pathname); | |
75b757ca ACM |
1241 | |
1242 | return printed; | |
1243 | } | |
1244 | ||
f994592d ACM |
1245 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1246 | unsigned long ptr) | |
1247 | { | |
1248 | struct thread_trace *ttrace = thread__priv(thread); | |
1249 | ||
1250 | ttrace->filename.ptr = ptr; | |
1251 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1252 | } | |
1253 | ||
75d1e306 ACM |
1254 | static size_t syscall_arg__scnprintf_augmented_string(struct syscall_arg *arg, char *bf, size_t size) |
1255 | { | |
1256 | struct augmented_arg *augmented_arg = arg->augmented.args; | |
8195168e ACM |
1257 | size_t printed = scnprintf(bf, size, "\"%.*s\"", augmented_arg->size, augmented_arg->value); |
1258 | /* | |
1259 | * So that the next arg with a payload can consume its augmented arg, i.e. for rename* syscalls | |
1260 | * we would have two strings, each prefixed by its size. | |
1261 | */ | |
1262 | int consumed = sizeof(*augmented_arg) + augmented_arg->size; | |
75d1e306 | 1263 | |
016f327c | 1264 | arg->augmented.args = ((void *)arg->augmented.args) + consumed; |
8195168e | 1265 | arg->augmented.size -= consumed; |
75d1e306 | 1266 | |
8195168e | 1267 | return printed; |
75d1e306 ACM |
1268 | } |
1269 | ||
f994592d ACM |
1270 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
1271 | struct syscall_arg *arg) | |
1272 | { | |
1273 | unsigned long ptr = arg->val; | |
1274 | ||
75d1e306 ACM |
1275 | if (arg->augmented.args) |
1276 | return syscall_arg__scnprintf_augmented_string(arg, bf, size); | |
1277 | ||
f994592d ACM |
1278 | if (!arg->trace->vfs_getname) |
1279 | return scnprintf(bf, size, "%#x", ptr); | |
1280 | ||
1281 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
ae9ed035 ACM |
1285 | static bool trace__filter_duration(struct trace *trace, double t) |
1286 | { | |
1287 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1288 | } | |
1289 | ||
fd2b2975 | 1290 | static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
752fde44 ACM |
1291 | { |
1292 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1293 | ||
60c907ab | 1294 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1295 | } |
1296 | ||
fd2b2975 ACM |
1297 | /* |
1298 | * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are | |
1299 | * using ttrace->entry_time for a thread that receives a sys_exit without | |
1300 | * first having received a sys_enter ("poll" issued before tracing session | |
1301 | * starts, lost sys_enter exit due to ring buffer overflow). | |
1302 | */ | |
1303 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) | |
1304 | { | |
1305 | if (tstamp > 0) | |
1306 | return __trace__fprintf_tstamp(trace, tstamp, fp); | |
1307 | ||
1308 | return fprintf(fp, " ? "); | |
1309 | } | |
1310 | ||
f15eb531 | 1311 | static bool done = false; |
ba209f85 | 1312 | static bool interrupted = false; |
f15eb531 | 1313 | |
ba209f85 | 1314 | static void sig_handler(int sig) |
f15eb531 NK |
1315 | { |
1316 | done = true; | |
ba209f85 | 1317 | interrupted = sig == SIGINT; |
f15eb531 NK |
1318 | } |
1319 | ||
6dcbd212 | 1320 | static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp) |
752fde44 | 1321 | { |
6dcbd212 | 1322 | size_t printed = 0; |
752fde44 | 1323 | |
50c95cbd ACM |
1324 | if (trace->multiple_threads) { |
1325 | if (trace->show_comm) | |
1902efe7 | 1326 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
38051234 | 1327 | printed += fprintf(fp, "%d ", thread->tid); |
50c95cbd | 1328 | } |
752fde44 ACM |
1329 | |
1330 | return printed; | |
1331 | } | |
1332 | ||
6dcbd212 ACM |
1333 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
1334 | u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) | |
1335 | { | |
b036146f ACM |
1336 | size_t printed = 0; |
1337 | ||
1338 | if (trace->show_tstamp) | |
1339 | printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
42e4a52d ACM |
1340 | if (trace->show_duration) |
1341 | printed += fprintf_duration(duration, duration_calculated, fp); | |
6dcbd212 ACM |
1342 | return printed + trace__fprintf_comm_tid(trace, thread, fp); |
1343 | } | |
1344 | ||
c24ff998 | 1345 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1346 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1347 | { |
1348 | int ret = 0; | |
1349 | ||
1350 | switch (event->header.type) { | |
1351 | case PERF_RECORD_LOST: | |
c24ff998 | 1352 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1353 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1354 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1355 | break; |
752fde44 | 1356 | default: |
162f0bef | 1357 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1358 | break; |
1359 | } | |
1360 | ||
1361 | return ret; | |
1362 | } | |
1363 | ||
c24ff998 | 1364 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1365 | union perf_event *event, |
162f0bef | 1366 | struct perf_sample *sample, |
752fde44 ACM |
1367 | struct machine *machine) |
1368 | { | |
c24ff998 | 1369 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1370 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1371 | } |
1372 | ||
caf8a0d0 ACM |
1373 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1374 | { | |
1375 | struct machine *machine = vmachine; | |
1376 | ||
1377 | if (machine->kptr_restrict_warned) | |
1378 | return NULL; | |
1379 | ||
1380 | if (symbol_conf.kptr_restrict) { | |
1381 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
1382 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
1383 | "Kernel samples will not be resolved.\n"); | |
1384 | machine->kptr_restrict_warned = true; | |
1385 | return NULL; | |
1386 | } | |
1387 | ||
1388 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1389 | } | |
1390 | ||
752fde44 ACM |
1391 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) |
1392 | { | |
0a7e6d1b | 1393 | int err = symbol__init(NULL); |
752fde44 ACM |
1394 | |
1395 | if (err) | |
1396 | return err; | |
1397 | ||
8fb598e5 DA |
1398 | trace->host = machine__new_host(); |
1399 | if (trace->host == NULL) | |
1400 | return -ENOMEM; | |
752fde44 | 1401 | |
cbd5c178 AV |
1402 | err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr); |
1403 | if (err < 0) | |
1404 | goto out; | |
706c3da4 | 1405 | |
a33fbd56 | 1406 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
9d9cad76 | 1407 | evlist->threads, trace__tool_process, false, |
3fcb10e4 | 1408 | 1); |
cbd5c178 | 1409 | out: |
752fde44 ACM |
1410 | if (err) |
1411 | symbol__exit(); | |
1412 | ||
1413 | return err; | |
1414 | } | |
1415 | ||
33974a41 AV |
1416 | static void trace__symbols__exit(struct trace *trace) |
1417 | { | |
1418 | machine__exit(trace->host); | |
1419 | trace->host = NULL; | |
1420 | ||
1421 | symbol__exit(); | |
1422 | } | |
1423 | ||
5e58fcfa | 1424 | static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args) |
13d4ff3e | 1425 | { |
5e58fcfa | 1426 | int idx; |
13d4ff3e | 1427 | |
332337da ACM |
1428 | if (nr_args == 6 && sc->fmt && sc->fmt->nr_args != 0) |
1429 | nr_args = sc->fmt->nr_args; | |
1430 | ||
5e58fcfa | 1431 | sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt)); |
82d4a110 | 1432 | if (sc->arg_fmt == NULL) |
13d4ff3e ACM |
1433 | return -1; |
1434 | ||
5e58fcfa ACM |
1435 | for (idx = 0; idx < nr_args; ++idx) { |
1436 | if (sc->fmt) | |
82d4a110 | 1437 | sc->arg_fmt[idx] = sc->fmt->arg[idx]; |
5e58fcfa | 1438 | } |
82d4a110 | 1439 | |
5e58fcfa ACM |
1440 | sc->nr_args = nr_args; |
1441 | return 0; | |
1442 | } | |
1443 | ||
1444 | static int syscall__set_arg_fmts(struct syscall *sc) | |
1445 | { | |
2c92f982 | 1446 | struct tep_format_field *field, *last_field = NULL; |
5e58fcfa ACM |
1447 | int idx = 0, len; |
1448 | ||
1449 | for (field = sc->args; field; field = field->next, ++idx) { | |
7a983a0f ACM |
1450 | last_field = field; |
1451 | ||
5e58fcfa ACM |
1452 | if (sc->fmt && sc->fmt->arg[idx].scnprintf) |
1453 | continue; | |
1f115cb7 | 1454 | |
dea87bfb ACM |
1455 | len = strlen(field->name); |
1456 | ||
82d4a110 | 1457 | if (strcmp(field->type, "const char *") == 0 && |
dea87bfb ACM |
1458 | ((len >= 4 && strcmp(field->name + len - 4, "name") == 0) || |
1459 | strstr(field->name, "path") != NULL)) | |
82d4a110 | 1460 | sc->arg_fmt[idx].scnprintf = SCA_FILENAME; |
ce05539f ACM |
1461 | else if ((field->flags & TEP_FIELD_IS_POINTER) || strstr(field->name, "addr")) |
1462 | sc->arg_fmt[idx].scnprintf = SCA_PTR; | |
d1d438a3 | 1463 | else if (strcmp(field->type, "pid_t") == 0) |
82d4a110 | 1464 | sc->arg_fmt[idx].scnprintf = SCA_PID; |
ba2f22cf | 1465 | else if (strcmp(field->type, "umode_t") == 0) |
82d4a110 | 1466 | sc->arg_fmt[idx].scnprintf = SCA_MODE_T; |
b6565c90 ACM |
1467 | else if ((strcmp(field->type, "int") == 0 || |
1468 | strcmp(field->type, "unsigned int") == 0 || | |
1469 | strcmp(field->type, "long") == 0) && | |
dea87bfb | 1470 | len >= 2 && strcmp(field->name + len - 2, "fd") == 0) { |
b6565c90 ACM |
1471 | /* |
1472 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
1473 | * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c | |
1474 | * 65 int | |
1475 | * 23 unsigned int | |
1476 | * 7 unsigned long | |
1477 | */ | |
82d4a110 | 1478 | sc->arg_fmt[idx].scnprintf = SCA_FD; |
b6565c90 | 1479 | } |
13d4ff3e ACM |
1480 | } |
1481 | ||
7a983a0f ACM |
1482 | if (last_field) |
1483 | sc->args_size = last_field->offset + last_field->size; | |
1484 | ||
13d4ff3e ACM |
1485 | return 0; |
1486 | } | |
1487 | ||
514f1c67 ACM |
1488 | static int trace__read_syscall_info(struct trace *trace, int id) |
1489 | { | |
1490 | char tp_name[128]; | |
1491 | struct syscall *sc; | |
fd0db102 | 1492 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 | 1493 | |
30a910d7 ACM |
1494 | if (trace->syscalls.table == NULL) { |
1495 | trace->syscalls.table = calloc(trace->sctbl->syscalls.nr_entries, sizeof(*sc)); | |
1496 | if (trace->syscalls.table == NULL) | |
5d2bd889 | 1497 | return -ENOMEM; |
514f1c67 ACM |
1498 | } |
1499 | ||
1500 | sc = trace->syscalls.table + id; | |
b8b1033f ACM |
1501 | if (sc->nonexistent) |
1502 | return 0; | |
2ae3a312 | 1503 | |
b8b1033f ACM |
1504 | if (name == NULL) { |
1505 | sc->nonexistent = true; | |
1506 | return 0; | |
1507 | } | |
1508 | ||
1509 | sc->name = name; | |
3a531260 | 1510 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1511 | |
aec1930b | 1512 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1513 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1514 | |
8dd2a131 | 1515 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1516 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1517 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1518 | } |
514f1c67 | 1519 | |
5e58fcfa | 1520 | if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? 6 : sc->tp_format->format.nr_fields)) |
5d2bd889 | 1521 | return -ENOMEM; |
5e58fcfa | 1522 | |
8dd2a131 | 1523 | if (IS_ERR(sc->tp_format)) |
5d2bd889 | 1524 | return PTR_ERR(sc->tp_format); |
13d4ff3e | 1525 | |
f208bd8d | 1526 | sc->args = sc->tp_format->format.fields; |
c42de706 TS |
1527 | /* |
1528 | * We need to check and discard the first variable '__syscall_nr' | |
1529 | * or 'nr' that mean the syscall number. It is needless here. | |
1530 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1531 | */ | |
1532 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1533 | sc->args = sc->args->next; |
1534 | --sc->nr_args; | |
1535 | } | |
1536 | ||
5089f20e | 1537 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
6a648b53 | 1538 | sc->is_open = !strcmp(name, "open") || !strcmp(name, "openat"); |
5089f20e | 1539 | |
13d4ff3e | 1540 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1541 | } |
1542 | ||
83e69b92 ACM |
1543 | static int intcmp(const void *a, const void *b) |
1544 | { | |
1545 | const int *one = a, *another = b; | |
1546 | ||
1547 | return *one - *another; | |
1548 | } | |
1549 | ||
d0cc439b ACM |
1550 | static int trace__validate_ev_qualifier(struct trace *trace) |
1551 | { | |
a4066d64 | 1552 | int err = 0; |
04c41bcb | 1553 | bool printed_invalid_prefix = false; |
d0cc439b | 1554 | struct str_node *pos; |
99f26f85 | 1555 | size_t nr_used = 0, nr_allocated = strlist__nr_entries(trace->ev_qualifier); |
d0cc439b | 1556 | |
99f26f85 | 1557 | trace->ev_qualifier_ids.entries = malloc(nr_allocated * |
8b3ce757 ACM |
1558 | sizeof(trace->ev_qualifier_ids.entries[0])); |
1559 | ||
1560 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1561 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1562 | trace->output); | |
1563 | err = -EINVAL; | |
1564 | goto out; | |
1565 | } | |
1566 | ||
602a1f4d | 1567 | strlist__for_each_entry(pos, trace->ev_qualifier) { |
d0cc439b | 1568 | const char *sc = pos->s; |
27702bcf | 1569 | int id = syscalltbl__id(trace->sctbl, sc), match_next = -1; |
d0cc439b | 1570 | |
8b3ce757 | 1571 | if (id < 0) { |
27702bcf ACM |
1572 | id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next); |
1573 | if (id >= 0) | |
1574 | goto matches; | |
1575 | ||
04c41bcb ACM |
1576 | if (!printed_invalid_prefix) { |
1577 | pr_debug("Skipping unknown syscalls: "); | |
1578 | printed_invalid_prefix = true; | |
d0cc439b | 1579 | } else { |
04c41bcb | 1580 | pr_debug(", "); |
d0cc439b ACM |
1581 | } |
1582 | ||
04c41bcb ACM |
1583 | pr_debug("%s", sc); |
1584 | continue; | |
d0cc439b | 1585 | } |
27702bcf | 1586 | matches: |
99f26f85 | 1587 | trace->ev_qualifier_ids.entries[nr_used++] = id; |
27702bcf ACM |
1588 | if (match_next == -1) |
1589 | continue; | |
1590 | ||
1591 | while (1) { | |
1592 | id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); | |
1593 | if (id < 0) | |
1594 | break; | |
99f26f85 | 1595 | if (nr_allocated == nr_used) { |
27702bcf ACM |
1596 | void *entries; |
1597 | ||
1598 | nr_allocated += 8; | |
1599 | entries = realloc(trace->ev_qualifier_ids.entries, | |
1600 | nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0])); | |
1601 | if (entries == NULL) { | |
1602 | err = -ENOMEM; | |
1603 | fputs("\nError:\t Not enough memory for parsing\n", trace->output); | |
1604 | goto out_free; | |
1605 | } | |
1606 | trace->ev_qualifier_ids.entries = entries; | |
1607 | } | |
99f26f85 | 1608 | trace->ev_qualifier_ids.entries[nr_used++] = id; |
27702bcf | 1609 | } |
d0cc439b ACM |
1610 | } |
1611 | ||
99f26f85 | 1612 | trace->ev_qualifier_ids.nr = nr_used; |
83e69b92 | 1613 | qsort(trace->ev_qualifier_ids.entries, nr_used, sizeof(int), intcmp); |
8b3ce757 | 1614 | out: |
04c41bcb ACM |
1615 | if (printed_invalid_prefix) |
1616 | pr_debug("\n"); | |
d0cc439b | 1617 | return err; |
04c41bcb ACM |
1618 | out_free: |
1619 | zfree(&trace->ev_qualifier_ids.entries); | |
1620 | trace->ev_qualifier_ids.nr = 0; | |
1621 | goto out; | |
d0cc439b ACM |
1622 | } |
1623 | ||
3803a229 ACM |
1624 | static __maybe_unused bool trace__syscall_enabled(struct trace *trace, int id) |
1625 | { | |
1626 | bool in_ev_qualifier; | |
1627 | ||
1628 | if (trace->ev_qualifier_ids.nr == 0) | |
1629 | return true; | |
1630 | ||
1631 | in_ev_qualifier = bsearch(&id, trace->ev_qualifier_ids.entries, | |
1632 | trace->ev_qualifier_ids.nr, sizeof(int), intcmp) != NULL; | |
1633 | ||
1634 | if (in_ev_qualifier) | |
1635 | return !trace->not_ev_qualifier; | |
1636 | ||
1637 | return trace->not_ev_qualifier; | |
1638 | } | |
1639 | ||
55d43bca DA |
1640 | /* |
1641 | * args is to be interpreted as a series of longs but we need to handle | |
1642 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1643 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1644 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1645 | * variable to read it. Most notably this avoids extended load instructions | |
1646 | * on unaligned addresses | |
1647 | */ | |
325f5091 | 1648 | unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx) |
f9f83b33 ACM |
1649 | { |
1650 | unsigned long val; | |
325f5091 | 1651 | unsigned char *p = arg->args + sizeof(unsigned long) * idx; |
f9f83b33 ACM |
1652 | |
1653 | memcpy(&val, p, sizeof(val)); | |
1654 | return val; | |
1655 | } | |
1656 | ||
c51bdfec ACM |
1657 | static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size, |
1658 | struct syscall_arg *arg) | |
1659 | { | |
1660 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].name) | |
1661 | return scnprintf(bf, size, "%s: ", sc->arg_fmt[arg->idx].name); | |
1662 | ||
1663 | return scnprintf(bf, size, "arg%d: ", arg->idx); | |
1664 | } | |
1665 | ||
496fd346 ACM |
1666 | /* |
1667 | * Check if the value is in fact zero, i.e. mask whatever needs masking, such | |
1668 | * as mount 'flags' argument that needs ignoring some magic flag, see comment | |
1669 | * in tools/perf/trace/beauty/mount_flags.c | |
1670 | */ | |
1671 | static unsigned long syscall__mask_val(struct syscall *sc, struct syscall_arg *arg, unsigned long val) | |
1672 | { | |
1673 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].mask_val) | |
1674 | return sc->arg_fmt[arg->idx].mask_val(arg, val); | |
1675 | ||
1676 | return val; | |
1677 | } | |
1678 | ||
d032d79e ACM |
1679 | static size_t syscall__scnprintf_val(struct syscall *sc, char *bf, size_t size, |
1680 | struct syscall_arg *arg, unsigned long val) | |
1681 | { | |
1682 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].scnprintf) { | |
1683 | arg->val = val; | |
1684 | if (sc->arg_fmt[arg->idx].parm) | |
1685 | arg->parm = sc->arg_fmt[arg->idx].parm; | |
1686 | return sc->arg_fmt[arg->idx].scnprintf(bf, size, arg); | |
1687 | } | |
1688 | return scnprintf(bf, size, "%ld", val); | |
1689 | } | |
1690 | ||
752fde44 | 1691 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
7a983a0f ACM |
1692 | unsigned char *args, void *augmented_args, int augmented_args_size, |
1693 | struct trace *trace, struct thread *thread) | |
514f1c67 | 1694 | { |
514f1c67 | 1695 | size_t printed = 0; |
55d43bca | 1696 | unsigned long val; |
d032d79e ACM |
1697 | u8 bit = 1; |
1698 | struct syscall_arg arg = { | |
1699 | .args = args, | |
7a983a0f ACM |
1700 | .augmented = { |
1701 | .size = augmented_args_size, | |
1702 | .args = augmented_args, | |
1703 | }, | |
d032d79e ACM |
1704 | .idx = 0, |
1705 | .mask = 0, | |
1706 | .trace = trace, | |
1707 | .thread = thread, | |
c65c83ff | 1708 | .show_string_prefix = trace->show_string_prefix, |
d032d79e | 1709 | }; |
84486caa ACM |
1710 | struct thread_trace *ttrace = thread__priv(thread); |
1711 | ||
1712 | /* | |
1713 | * Things like fcntl will set this in its 'cmd' formatter to pick the | |
1714 | * right formatter for the return value (an fd? file flags?), which is | |
1715 | * not needed for syscalls that always return a given type, say an fd. | |
1716 | */ | |
1717 | ttrace->ret_scnprintf = NULL; | |
514f1c67 | 1718 | |
f208bd8d | 1719 | if (sc->args != NULL) { |
2c92f982 | 1720 | struct tep_format_field *field; |
6e7eeb51 | 1721 | |
f208bd8d | 1722 | for (field = sc->args; field; |
01533e97 ACM |
1723 | field = field->next, ++arg.idx, bit <<= 1) { |
1724 | if (arg.mask & bit) | |
6e7eeb51 | 1725 | continue; |
55d43bca | 1726 | |
f9f83b33 | 1727 | val = syscall_arg__val(&arg, arg.idx); |
496fd346 ACM |
1728 | /* |
1729 | * Some syscall args need some mask, most don't and | |
1730 | * return val untouched. | |
1731 | */ | |
1732 | val = syscall__mask_val(sc, &arg, val); | |
55d43bca | 1733 | |
4aa58232 ACM |
1734 | /* |
1735 | * Suppress this argument if its value is zero and | |
1736 | * and we don't have a string associated in an | |
1737 | * strarray for it. | |
1738 | */ | |
55d43bca | 1739 | if (val == 0 && |
e7c634fc | 1740 | !trace->show_zeros && |
82d4a110 | 1741 | !(sc->arg_fmt && |
d47737d5 ACM |
1742 | (sc->arg_fmt[arg.idx].show_zero || |
1743 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY || | |
82d4a110 ACM |
1744 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) && |
1745 | sc->arg_fmt[arg.idx].parm)) | |
22ae5cf1 ACM |
1746 | continue; |
1747 | ||
9d6dc178 ACM |
1748 | printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : ""); |
1749 | ||
1750 | if (trace->show_arg_names) | |
1751 | printed += scnprintf(bf + printed, size - printed, "%s: ", field->name); | |
1752 | ||
d032d79e | 1753 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
514f1c67 | 1754 | } |
4c4d6e51 ACM |
1755 | } else if (IS_ERR(sc->tp_format)) { |
1756 | /* | |
1757 | * If we managed to read the tracepoint /format file, then we | |
1758 | * may end up not having any args, like with gettid(), so only | |
1759 | * print the raw args when we didn't manage to read it. | |
1760 | */ | |
332337da | 1761 | while (arg.idx < sc->nr_args) { |
d032d79e ACM |
1762 | if (arg.mask & bit) |
1763 | goto next_arg; | |
1764 | val = syscall_arg__val(&arg, arg.idx); | |
c51bdfec ACM |
1765 | if (printed) |
1766 | printed += scnprintf(bf + printed, size - printed, ", "); | |
1767 | printed += syscall__scnprintf_name(sc, bf + printed, size - printed, &arg); | |
d032d79e ACM |
1768 | printed += syscall__scnprintf_val(sc, bf + printed, size - printed, &arg, val); |
1769 | next_arg: | |
1770 | ++arg.idx; | |
1771 | bit <<= 1; | |
514f1c67 ACM |
1772 | } |
1773 | } | |
1774 | ||
1775 | return printed; | |
1776 | } | |
1777 | ||
32dcd021 | 1778 | typedef int (*tracepoint_handler)(struct trace *trace, struct evsel *evsel, |
0c82adcf | 1779 | union perf_event *event, |
ba3d7dee ACM |
1780 | struct perf_sample *sample); |
1781 | ||
1782 | static struct syscall *trace__syscall_info(struct trace *trace, | |
32dcd021 | 1783 | struct evsel *evsel, int id) |
ba3d7dee | 1784 | { |
5d2bd889 | 1785 | int err = 0; |
ba3d7dee ACM |
1786 | |
1787 | if (id < 0) { | |
adaa18bf ACM |
1788 | |
1789 | /* | |
1790 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
1791 | * before that, leaving at a higher verbosity level till that is | |
1792 | * explained. Reproduced with plain ftrace with: | |
1793 | * | |
1794 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
1795 | * grep "NR -1 " /t/trace_pipe | |
1796 | * | |
1797 | * After generating some load on the machine. | |
1798 | */ | |
1799 | if (verbose > 1) { | |
1800 | static u64 n; | |
1801 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
1802 | id, perf_evsel__name(evsel), ++n); | |
1803 | } | |
ba3d7dee ACM |
1804 | return NULL; |
1805 | } | |
1806 | ||
b8b1033f ACM |
1807 | err = -EINVAL; |
1808 | ||
30a910d7 | 1809 | if (id > trace->sctbl->syscalls.max_id) |
ba3d7dee ACM |
1810 | goto out_cant_read; |
1811 | ||
30a910d7 ACM |
1812 | if ((trace->syscalls.table == NULL || trace->syscalls.table[id].name == NULL) && |
1813 | (err = trace__read_syscall_info(trace, id)) != 0) | |
ba3d7dee ACM |
1814 | goto out_cant_read; |
1815 | ||
b8b1033f ACM |
1816 | if (trace->syscalls.table[id].name == NULL) { |
1817 | if (trace->syscalls.table[id].nonexistent) | |
1818 | return NULL; | |
1819 | goto out_cant_read; | |
1820 | } | |
1821 | ||
ba3d7dee ACM |
1822 | return &trace->syscalls.table[id]; |
1823 | ||
1824 | out_cant_read: | |
bb963e16 | 1825 | if (verbose > 0) { |
5d2bd889 ACM |
1826 | char sbuf[STRERR_BUFSIZE]; |
1827 | fprintf(trace->output, "Problems reading syscall %d: %d (%s)", id, -err, str_error_r(-err, sbuf, sizeof(sbuf))); | |
30a910d7 | 1828 | if (id <= trace->sctbl->syscalls.max_id && trace->syscalls.table[id].name != NULL) |
7c304ee0 ACM |
1829 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); |
1830 | fputs(" information\n", trace->output); | |
1831 | } | |
ba3d7dee ACM |
1832 | return NULL; |
1833 | } | |
1834 | ||
bf2575c1 DA |
1835 | static void thread__update_stats(struct thread_trace *ttrace, |
1836 | int id, struct perf_sample *sample) | |
1837 | { | |
1838 | struct int_node *inode; | |
1839 | struct stats *stats; | |
1840 | u64 duration = 0; | |
1841 | ||
1842 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
1843 | if (inode == NULL) | |
1844 | return; | |
1845 | ||
1846 | stats = inode->priv; | |
1847 | if (stats == NULL) { | |
1848 | stats = malloc(sizeof(struct stats)); | |
1849 | if (stats == NULL) | |
1850 | return; | |
1851 | init_stats(stats); | |
1852 | inode->priv = stats; | |
1853 | } | |
1854 | ||
1855 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
1856 | duration = sample->time - ttrace->entry_time; | |
1857 | ||
1858 | update_stats(stats, duration); | |
1859 | } | |
1860 | ||
522283fe | 1861 | static int trace__printf_interrupted_entry(struct trace *trace) |
e596663e ACM |
1862 | { |
1863 | struct thread_trace *ttrace; | |
e596663e | 1864 | size_t printed; |
172bf02d | 1865 | int len; |
e596663e | 1866 | |
0a6545bd | 1867 | if (trace->failure_only || trace->current == NULL) |
e596663e ACM |
1868 | return 0; |
1869 | ||
1870 | ttrace = thread__priv(trace->current); | |
1871 | ||
1872 | if (!ttrace->entry_pending) | |
1873 | return 0; | |
1874 | ||
522283fe | 1875 | printed = trace__fprintf_entry_head(trace, trace->current, 0, false, ttrace->entry_time, trace->output); |
172bf02d ACM |
1876 | printed += len = fprintf(trace->output, "%s)", ttrace->entry_str); |
1877 | ||
1878 | if (len < trace->args_alignment - 4) | |
1879 | printed += fprintf(trace->output, "%-*s", trace->args_alignment - 4 - len, " "); | |
e596663e | 1880 | |
172bf02d ACM |
1881 | printed += fprintf(trace->output, " ...\n"); |
1882 | ||
1883 | ttrace->entry_pending = false; | |
5067a8cd ACM |
1884 | ++trace->nr_events_printed; |
1885 | ||
e596663e ACM |
1886 | return printed; |
1887 | } | |
1888 | ||
32dcd021 | 1889 | static int trace__fprintf_sample(struct trace *trace, struct evsel *evsel, |
591421e1 ACM |
1890 | struct perf_sample *sample, struct thread *thread) |
1891 | { | |
1892 | int printed = 0; | |
1893 | ||
1894 | if (trace->print_sample) { | |
1895 | double ts = (double)sample->time / NSEC_PER_MSEC; | |
1896 | ||
1897 | printed += fprintf(trace->output, "%22s %10.3f %s %d/%d [%d]\n", | |
1898 | perf_evsel__name(evsel), ts, | |
1899 | thread__comm_str(thread), | |
1900 | sample->pid, sample->tid, sample->cpu); | |
1901 | } | |
1902 | ||
1903 | return printed; | |
1904 | } | |
1905 | ||
b9b6a2ea | 1906 | static void *syscall__augmented_args(struct syscall *sc, struct perf_sample *sample, int *augmented_args_size, int raw_augmented_args_size) |
8a041f86 ACM |
1907 | { |
1908 | void *augmented_args = NULL; | |
cd26ea6d ACM |
1909 | /* |
1910 | * For now with BPF raw_augmented we hook into raw_syscalls:sys_enter | |
b9b6a2ea ACM |
1911 | * and there we get all 6 syscall args plus the tracepoint common fields |
1912 | * that gets calculated at the start and the syscall_nr (another long). | |
1913 | * So we check if that is the case and if so don't look after the | |
1914 | * sc->args_size but always after the full raw_syscalls:sys_enter payload, | |
1915 | * which is fixed. | |
cd26ea6d ACM |
1916 | * |
1917 | * We'll revisit this later to pass s->args_size to the BPF augmenter | |
1918 | * (now tools/perf/examples/bpf/augmented_raw_syscalls.c, so that it | |
1919 | * copies only what we need for each syscall, like what happens when we | |
1920 | * use syscalls:sys_enter_NAME, so that we reduce the kernel/userspace | |
1921 | * traffic to just what is needed for each syscall. | |
1922 | */ | |
b9b6a2ea | 1923 | int args_size = raw_augmented_args_size ?: sc->args_size; |
8a041f86 | 1924 | |
cd26ea6d | 1925 | *augmented_args_size = sample->raw_size - args_size; |
8a041f86 | 1926 | if (*augmented_args_size > 0) |
cd26ea6d | 1927 | augmented_args = sample->raw_data + args_size; |
8a041f86 ACM |
1928 | |
1929 | return augmented_args; | |
1930 | } | |
1931 | ||
32dcd021 | 1932 | static int trace__sys_enter(struct trace *trace, struct evsel *evsel, |
0c82adcf | 1933 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1934 | struct perf_sample *sample) |
1935 | { | |
752fde44 | 1936 | char *msg; |
ba3d7dee | 1937 | void *args; |
4b8a240e | 1938 | int printed = 0; |
2ae3a312 | 1939 | struct thread *thread; |
b91fc39f | 1940 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
db2da3f8 ACM |
1941 | int augmented_args_size = 0; |
1942 | void *augmented_args = NULL; | |
bf2575c1 | 1943 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1944 | struct thread_trace *ttrace; |
1945 | ||
1946 | if (sc == NULL) | |
1947 | return -1; | |
ba3d7dee | 1948 | |
8fb598e5 | 1949 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1950 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1951 | if (ttrace == NULL) |
b91fc39f | 1952 | goto out_put; |
ba3d7dee | 1953 | |
591421e1 ACM |
1954 | trace__fprintf_sample(trace, evsel, sample, thread); |
1955 | ||
77170988 | 1956 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
1957 | |
1958 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 1959 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 1960 | if (!ttrace->entry_str) |
b91fc39f | 1961 | goto out_put; |
752fde44 ACM |
1962 | } |
1963 | ||
5cf9c84e | 1964 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
522283fe | 1965 | trace__printf_interrupted_entry(trace); |
db2da3f8 ACM |
1966 | /* |
1967 | * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible | |
1968 | * arguments, even if the syscall being handled, say "openat", uses only 4 arguments | |
1969 | * this breaks syscall__augmented_args() check for augmented args, as we calculate | |
1970 | * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file, | |
1971 | * so when handling, say the openat syscall, we end up getting 6 args for the | |
1972 | * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly | |
1973 | * thinking that the extra 2 u64 args are the augmented filename, so just check | |
1974 | * here and avoid using augmented syscalls when the evsel is the raw_syscalls one. | |
1975 | */ | |
1976 | if (evsel != trace->syscalls.events.sys_enter) | |
b9b6a2ea | 1977 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
752fde44 ACM |
1978 | ttrace->entry_time = sample->time; |
1979 | msg = ttrace->entry_str; | |
e4d44e83 | 1980 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 1981 | |
e4d44e83 | 1982 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
db2da3f8 | 1983 | args, augmented_args, augmented_args_size, trace, thread); |
752fde44 | 1984 | |
5089f20e | 1985 | if (sc->is_exit) { |
0a6545bd | 1986 | if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) { |
4b8a240e ACM |
1987 | int alignment = 0; |
1988 | ||
fd2b2975 | 1989 | trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output); |
4b8a240e ACM |
1990 | printed = fprintf(trace->output, "%s)", ttrace->entry_str); |
1991 | if (trace->args_alignment > printed) | |
1992 | alignment = trace->args_alignment - printed; | |
1993 | fprintf(trace->output, "%*s= ?\n", alignment, " "); | |
ae9ed035 | 1994 | } |
7f4f8001 | 1995 | } else { |
752fde44 | 1996 | ttrace->entry_pending = true; |
7f4f8001 ACM |
1997 | /* See trace__vfs_getname & trace__sys_exit */ |
1998 | ttrace->filename.pending_open = false; | |
1999 | } | |
ba3d7dee | 2000 | |
f3b623b8 ACM |
2001 | if (trace->current != thread) { |
2002 | thread__put(trace->current); | |
2003 | trace->current = thread__get(thread); | |
2004 | } | |
b91fc39f ACM |
2005 | err = 0; |
2006 | out_put: | |
2007 | thread__put(thread); | |
2008 | return err; | |
ba3d7dee ACM |
2009 | } |
2010 | ||
32dcd021 | 2011 | static int trace__fprintf_sys_enter(struct trace *trace, struct evsel *evsel, |
a98392bb ACM |
2012 | struct perf_sample *sample) |
2013 | { | |
a98392bb ACM |
2014 | struct thread_trace *ttrace; |
2015 | struct thread *thread; | |
f3acd886 ACM |
2016 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
2017 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
a98392bb | 2018 | char msg[1024]; |
7a983a0f ACM |
2019 | void *args, *augmented_args = NULL; |
2020 | int augmented_args_size; | |
a98392bb | 2021 | |
a98392bb ACM |
2022 | if (sc == NULL) |
2023 | return -1; | |
2024 | ||
2025 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
2026 | ttrace = thread__trace(thread, trace->output); | |
2027 | /* | |
2028 | * We need to get ttrace just to make sure it is there when syscall__scnprintf_args() | |
2029 | * and the rest of the beautifiers accessing it via struct syscall_arg touches it. | |
2030 | */ | |
2031 | if (ttrace == NULL) | |
2032 | goto out_put; | |
2033 | ||
f3acd886 | 2034 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
b9b6a2ea | 2035 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
7a983a0f | 2036 | syscall__scnprintf_args(sc, msg, sizeof(msg), args, augmented_args, augmented_args_size, trace, thread); |
a98392bb ACM |
2037 | fprintf(trace->output, "%s", msg); |
2038 | err = 0; | |
2039 | out_put: | |
2040 | thread__put(thread); | |
2041 | return err; | |
2042 | } | |
2043 | ||
32dcd021 | 2044 | static int trace__resolve_callchain(struct trace *trace, struct evsel *evsel, |
5cf9c84e ACM |
2045 | struct perf_sample *sample, |
2046 | struct callchain_cursor *cursor) | |
202ff968 ACM |
2047 | { |
2048 | struct addr_location al; | |
3a9e9a47 RB |
2049 | int max_stack = evsel->attr.sample_max_stack ? |
2050 | evsel->attr.sample_max_stack : | |
2051 | trace->max_stack; | |
4291bf5c | 2052 | int err; |
5cf9c84e | 2053 | |
4291bf5c | 2054 | if (machine__resolve(trace->host, &al, sample) < 0) |
5cf9c84e ACM |
2055 | return -1; |
2056 | ||
4291bf5c ACM |
2057 | err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack); |
2058 | addr_location__put(&al); | |
2059 | return err; | |
5cf9c84e ACM |
2060 | } |
2061 | ||
2062 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
2063 | { | |
202ff968 | 2064 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
2065 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
2066 | EVSEL__PRINT_DSO | | |
2067 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 2068 | |
d327e60c | 2069 | return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output); |
202ff968 ACM |
2070 | } |
2071 | ||
32dcd021 | 2072 | static const char *errno_to_name(struct evsel *evsel, int err) |
092bd3cd HB |
2073 | { |
2074 | struct perf_env *env = perf_evsel__env(evsel); | |
2075 | const char *arch_name = perf_env__arch(env); | |
2076 | ||
2077 | return arch_syscalls__strerrno(arch_name, err); | |
2078 | } | |
2079 | ||
32dcd021 | 2080 | static int trace__sys_exit(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2081 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
2082 | struct perf_sample *sample) |
2083 | { | |
2c82c3ad | 2084 | long ret; |
60c907ab | 2085 | u64 duration = 0; |
fd2b2975 | 2086 | bool duration_calculated = false; |
2ae3a312 | 2087 | struct thread *thread; |
4b8a240e ACM |
2088 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0, printed = 0; |
2089 | int alignment = trace->args_alignment; | |
bf2575c1 | 2090 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
2091 | struct thread_trace *ttrace; |
2092 | ||
2093 | if (sc == NULL) | |
2094 | return -1; | |
ba3d7dee | 2095 | |
8fb598e5 | 2096 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 2097 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 2098 | if (ttrace == NULL) |
b91fc39f | 2099 | goto out_put; |
ba3d7dee | 2100 | |
591421e1 ACM |
2101 | trace__fprintf_sample(trace, evsel, sample, thread); |
2102 | ||
bf2575c1 DA |
2103 | if (trace->summary) |
2104 | thread__update_stats(ttrace, id, sample); | |
2105 | ||
77170988 | 2106 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 2107 | |
79d725cd | 2108 | if (!trace->fd_path_disabled && sc->is_open && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
2109 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
2110 | ttrace->filename.pending_open = false; | |
c522739d ACM |
2111 | ++trace->stats.vfs_getname; |
2112 | } | |
2113 | ||
ae9ed035 | 2114 | if (ttrace->entry_time) { |
60c907ab | 2115 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
2116 | if (trace__filter_duration(trace, duration)) |
2117 | goto out; | |
fd2b2975 | 2118 | duration_calculated = true; |
ae9ed035 ACM |
2119 | } else if (trace->duration_filter) |
2120 | goto out; | |
60c907ab | 2121 | |
5cf9c84e ACM |
2122 | if (sample->callchain) { |
2123 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2124 | if (callchain_ret == 0) { | |
2125 | if (callchain_cursor.nr < trace->min_stack) | |
2126 | goto out; | |
2127 | callchain_ret = 1; | |
2128 | } | |
2129 | } | |
2130 | ||
0a6545bd | 2131 | if (trace->summary_only || (ret >= 0 && trace->failure_only)) |
fd2eabaf DA |
2132 | goto out; |
2133 | ||
fd2b2975 | 2134 | trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output); |
752fde44 ACM |
2135 | |
2136 | if (ttrace->entry_pending) { | |
4b8a240e | 2137 | printed = fprintf(trace->output, "%s", ttrace->entry_str); |
752fde44 | 2138 | } else { |
ac6e022c | 2139 | printed += fprintf(trace->output, " ... ["); |
c24ff998 | 2140 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); |
ac6e022c ACM |
2141 | printed += 9; |
2142 | printed += fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
2143 | } |
2144 | ||
4b8a240e ACM |
2145 | printed++; /* the closing ')' */ |
2146 | ||
2147 | if (alignment > printed) | |
2148 | alignment -= printed; | |
2149 | else | |
2150 | alignment = 0; | |
2151 | ||
2152 | fprintf(trace->output, ")%*s= ", alignment, " "); | |
2153 | ||
da3c9a44 | 2154 | if (sc->fmt == NULL) { |
1f63139c ACM |
2155 | if (ret < 0) |
2156 | goto errno_print; | |
da3c9a44 | 2157 | signed_print: |
4b8a240e | 2158 | fprintf(trace->output, "%ld", ret); |
1f63139c ACM |
2159 | } else if (ret < 0) { |
2160 | errno_print: { | |
942a91ed | 2161 | char bf[STRERR_BUFSIZE]; |
c8b5f2c9 | 2162 | const char *emsg = str_error_r(-ret, bf, sizeof(bf)), |
092bd3cd | 2163 | *e = errno_to_name(evsel, -ret); |
ba3d7dee | 2164 | |
2c83dfae | 2165 | fprintf(trace->output, "-1 %s (%s)", e, emsg); |
1f63139c | 2166 | } |
da3c9a44 | 2167 | } else if (ret == 0 && sc->fmt->timeout) |
2c83dfae | 2168 | fprintf(trace->output, "0 (Timeout)"); |
84486caa ACM |
2169 | else if (ttrace->ret_scnprintf) { |
2170 | char bf[1024]; | |
7ee57434 ACM |
2171 | struct syscall_arg arg = { |
2172 | .val = ret, | |
2173 | .thread = thread, | |
2174 | .trace = trace, | |
2175 | }; | |
2176 | ttrace->ret_scnprintf(bf, sizeof(bf), &arg); | |
84486caa | 2177 | ttrace->ret_scnprintf = NULL; |
4b8a240e | 2178 | fprintf(trace->output, "%s", bf); |
84486caa | 2179 | } else if (sc->fmt->hexret) |
4b8a240e | 2180 | fprintf(trace->output, "%#lx", ret); |
11c8e39f ACM |
2181 | else if (sc->fmt->errpid) { |
2182 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
2183 | ||
2184 | if (child != NULL) { | |
4b8a240e | 2185 | fprintf(trace->output, "%ld", ret); |
11c8e39f ACM |
2186 | if (child->comm_set) |
2187 | fprintf(trace->output, " (%s)", thread__comm_str(child)); | |
2188 | thread__put(child); | |
2189 | } | |
2190 | } else | |
da3c9a44 | 2191 | goto signed_print; |
ba3d7dee | 2192 | |
c24ff998 | 2193 | fputc('\n', trace->output); |
566a0885 | 2194 | |
5067a8cd ACM |
2195 | /* |
2196 | * We only consider an 'event' for the sake of --max-events a non-filtered | |
2197 | * sys_enter + sys_exit and other tracepoint events. | |
2198 | */ | |
2199 | if (++trace->nr_events_printed == trace->max_events && trace->max_events != ULONG_MAX) | |
2200 | interrupted = true; | |
2201 | ||
5cf9c84e ACM |
2202 | if (callchain_ret > 0) |
2203 | trace__fprintf_callchain(trace, sample); | |
2204 | else if (callchain_ret < 0) | |
2205 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
ae9ed035 | 2206 | out: |
752fde44 | 2207 | ttrace->entry_pending = false; |
b91fc39f ACM |
2208 | err = 0; |
2209 | out_put: | |
2210 | thread__put(thread); | |
2211 | return err; | |
ba3d7dee ACM |
2212 | } |
2213 | ||
32dcd021 | 2214 | static int trace__vfs_getname(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2215 | union perf_event *event __maybe_unused, |
c522739d ACM |
2216 | struct perf_sample *sample) |
2217 | { | |
f994592d ACM |
2218 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2219 | struct thread_trace *ttrace; | |
2220 | size_t filename_len, entry_str_len, to_move; | |
2221 | ssize_t remaining_space; | |
2222 | char *pos; | |
7f4f8001 | 2223 | const char *filename = perf_evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
2224 | |
2225 | if (!thread) | |
2226 | goto out; | |
2227 | ||
2228 | ttrace = thread__priv(thread); | |
2229 | if (!ttrace) | |
ef65e96e | 2230 | goto out_put; |
f994592d | 2231 | |
7f4f8001 | 2232 | filename_len = strlen(filename); |
39f0e7a8 | 2233 | if (filename_len == 0) |
ef65e96e | 2234 | goto out_put; |
7f4f8001 ACM |
2235 | |
2236 | if (ttrace->filename.namelen < filename_len) { | |
2237 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
2238 | ||
2239 | if (f == NULL) | |
ef65e96e | 2240 | goto out_put; |
7f4f8001 ACM |
2241 | |
2242 | ttrace->filename.namelen = filename_len; | |
2243 | ttrace->filename.name = f; | |
2244 | } | |
2245 | ||
2246 | strcpy(ttrace->filename.name, filename); | |
2247 | ttrace->filename.pending_open = true; | |
2248 | ||
f994592d | 2249 | if (!ttrace->filename.ptr) |
ef65e96e | 2250 | goto out_put; |
f994592d ACM |
2251 | |
2252 | entry_str_len = strlen(ttrace->entry_str); | |
2253 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
2254 | if (remaining_space <= 0) | |
ef65e96e | 2255 | goto out_put; |
f994592d | 2256 | |
f994592d ACM |
2257 | if (filename_len > (size_t)remaining_space) { |
2258 | filename += filename_len - remaining_space; | |
2259 | filename_len = remaining_space; | |
2260 | } | |
2261 | ||
2262 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
2263 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
2264 | memmove(pos + filename_len, pos, to_move); | |
2265 | memcpy(pos, filename, filename_len); | |
2266 | ||
2267 | ttrace->filename.ptr = 0; | |
2268 | ttrace->filename.entry_str_pos = 0; | |
ef65e96e ACM |
2269 | out_put: |
2270 | thread__put(thread); | |
f994592d | 2271 | out: |
c522739d ACM |
2272 | return 0; |
2273 | } | |
2274 | ||
32dcd021 | 2275 | static int trace__sched_stat_runtime(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2276 | union perf_event *event __maybe_unused, |
1302d88e ACM |
2277 | struct perf_sample *sample) |
2278 | { | |
2279 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
2280 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
8fb598e5 | 2281 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
2282 | sample->pid, |
2283 | sample->tid); | |
c24ff998 | 2284 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
2285 | |
2286 | if (ttrace == NULL) | |
2287 | goto out_dump; | |
2288 | ||
2289 | ttrace->runtime_ms += runtime_ms; | |
2290 | trace->runtime_ms += runtime_ms; | |
ef65e96e | 2291 | out_put: |
b91fc39f | 2292 | thread__put(thread); |
1302d88e ACM |
2293 | return 0; |
2294 | ||
2295 | out_dump: | |
c24ff998 | 2296 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
2297 | evsel->name, |
2298 | perf_evsel__strval(evsel, sample, "comm"), | |
2299 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
2300 | runtime, | |
2301 | perf_evsel__intval(evsel, sample, "vruntime")); | |
ef65e96e | 2302 | goto out_put; |
1302d88e ACM |
2303 | } |
2304 | ||
923d0c9a ACM |
2305 | static int bpf_output__printer(enum binary_printer_ops op, |
2306 | unsigned int val, void *extra __maybe_unused, FILE *fp) | |
1d6c9407 | 2307 | { |
1d6c9407 WN |
2308 | unsigned char ch = (unsigned char)val; |
2309 | ||
2310 | switch (op) { | |
2311 | case BINARY_PRINT_CHAR_DATA: | |
923d0c9a | 2312 | return fprintf(fp, "%c", isprint(ch) ? ch : '.'); |
1d6c9407 WN |
2313 | case BINARY_PRINT_DATA_BEGIN: |
2314 | case BINARY_PRINT_LINE_BEGIN: | |
2315 | case BINARY_PRINT_ADDR: | |
2316 | case BINARY_PRINT_NUM_DATA: | |
2317 | case BINARY_PRINT_NUM_PAD: | |
2318 | case BINARY_PRINT_SEP: | |
2319 | case BINARY_PRINT_CHAR_PAD: | |
2320 | case BINARY_PRINT_LINE_END: | |
2321 | case BINARY_PRINT_DATA_END: | |
2322 | default: | |
2323 | break; | |
2324 | } | |
923d0c9a ACM |
2325 | |
2326 | return 0; | |
1d6c9407 WN |
2327 | } |
2328 | ||
2329 | static void bpf_output__fprintf(struct trace *trace, | |
2330 | struct perf_sample *sample) | |
2331 | { | |
923d0c9a ACM |
2332 | binary__fprintf(sample->raw_data, sample->raw_size, 8, |
2333 | bpf_output__printer, NULL, trace->output); | |
5067a8cd | 2334 | ++trace->nr_events_printed; |
1d6c9407 WN |
2335 | } |
2336 | ||
32dcd021 | 2337 | static int trace__event_handler(struct trace *trace, struct evsel *evsel, |
14a052df ACM |
2338 | union perf_event *event __maybe_unused, |
2339 | struct perf_sample *sample) | |
2340 | { | |
a9c5e6c1 | 2341 | struct thread *thread; |
7ad35615 | 2342 | int callchain_ret = 0; |
a9c5e6c1 ACM |
2343 | /* |
2344 | * Check if we called perf_evsel__disable(evsel) due to, for instance, | |
2345 | * this event's max_events having been hit and this is an entry coming | |
2346 | * from the ring buffer that we should discard, since the max events | |
2347 | * have already been considered/printed. | |
2348 | */ | |
2349 | if (evsel->disabled) | |
2350 | return 0; | |
2351 | ||
2352 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
7ad35615 ACM |
2353 | |
2354 | if (sample->callchain) { | |
2355 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2356 | if (callchain_ret == 0) { | |
2357 | if (callchain_cursor.nr < trace->min_stack) | |
2358 | goto out; | |
2359 | callchain_ret = 1; | |
2360 | } | |
2361 | } | |
2362 | ||
522283fe | 2363 | trace__printf_interrupted_entry(trace); |
14a052df | 2364 | trace__fprintf_tstamp(trace, sample->time, trace->output); |
0808921a | 2365 | |
42e4a52d | 2366 | if (trace->trace_syscalls && trace->show_duration) |
0808921a ACM |
2367 | fprintf(trace->output, "( ): "); |
2368 | ||
c4191e55 ACM |
2369 | if (thread) |
2370 | trace__fprintf_comm_tid(trace, thread, trace->output); | |
2371 | ||
1cdf618f ACM |
2372 | if (evsel == trace->syscalls.events.augmented) { |
2373 | int id = perf_evsel__sc_tp_uint(evsel, id, sample); | |
2374 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
2375 | ||
2376 | if (sc) { | |
c4191e55 ACM |
2377 | fprintf(trace->output, "%s(", sc->name); |
2378 | trace__fprintf_sys_enter(trace, evsel, sample); | |
2379 | fputc(')', trace->output); | |
2380 | goto newline; | |
1cdf618f ACM |
2381 | } |
2382 | ||
2383 | /* | |
2384 | * XXX: Not having the associated syscall info or not finding/adding | |
2385 | * the thread should never happen, but if it does... | |
2386 | * fall thru and print it as a bpf_output event. | |
2387 | */ | |
2388 | } | |
2389 | ||
0808921a | 2390 | fprintf(trace->output, "%s:", evsel->name); |
14a052df | 2391 | |
1d6c9407 | 2392 | if (perf_evsel__is_bpf_output(evsel)) { |
1cdf618f | 2393 | bpf_output__fprintf(trace, sample); |
1d6c9407 | 2394 | } else if (evsel->tp_format) { |
a98392bb ACM |
2395 | if (strncmp(evsel->tp_format->name, "sys_enter_", 10) || |
2396 | trace__fprintf_sys_enter(trace, evsel, sample)) { | |
2397 | event_format__fprintf(evsel->tp_format, sample->cpu, | |
2398 | sample->raw_data, sample->raw_size, | |
2399 | trace->output); | |
5067a8cd | 2400 | ++trace->nr_events_printed; |
a9c5e6c1 ACM |
2401 | |
2402 | if (evsel->max_events != ULONG_MAX && ++evsel->nr_events_printed == evsel->max_events) { | |
2403 | perf_evsel__disable(evsel); | |
2404 | perf_evsel__close(evsel); | |
2405 | } | |
a98392bb | 2406 | } |
14a052df ACM |
2407 | } |
2408 | ||
1cdf618f | 2409 | newline: |
51125a29 | 2410 | fprintf(trace->output, "\n"); |
202ff968 | 2411 | |
7ad35615 ACM |
2412 | if (callchain_ret > 0) |
2413 | trace__fprintf_callchain(trace, sample); | |
2414 | else if (callchain_ret < 0) | |
2415 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
2416 | out: | |
a937c665 | 2417 | thread__put(thread); |
14a052df ACM |
2418 | return 0; |
2419 | } | |
2420 | ||
598d02c5 SF |
2421 | static void print_location(FILE *f, struct perf_sample *sample, |
2422 | struct addr_location *al, | |
2423 | bool print_dso, bool print_sym) | |
2424 | { | |
2425 | ||
bb963e16 | 2426 | if ((verbose > 0 || print_dso) && al->map) |
598d02c5 SF |
2427 | fprintf(f, "%s@", al->map->dso->long_name); |
2428 | ||
bb963e16 | 2429 | if ((verbose > 0 || print_sym) && al->sym) |
4414a3c5 | 2430 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
2431 | al->addr - al->sym->start); |
2432 | else if (al->map) | |
4414a3c5 | 2433 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 2434 | else |
4414a3c5 | 2435 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
2436 | } |
2437 | ||
2438 | static int trace__pgfault(struct trace *trace, | |
32dcd021 | 2439 | struct evsel *evsel, |
473398a2 | 2440 | union perf_event *event __maybe_unused, |
598d02c5 SF |
2441 | struct perf_sample *sample) |
2442 | { | |
2443 | struct thread *thread; | |
598d02c5 SF |
2444 | struct addr_location al; |
2445 | char map_type = 'd'; | |
a2ea67d7 | 2446 | struct thread_trace *ttrace; |
b91fc39f | 2447 | int err = -1; |
1df54290 | 2448 | int callchain_ret = 0; |
598d02c5 SF |
2449 | |
2450 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1df54290 ACM |
2451 | |
2452 | if (sample->callchain) { | |
2453 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
2454 | if (callchain_ret == 0) { | |
2455 | if (callchain_cursor.nr < trace->min_stack) | |
2456 | goto out_put; | |
2457 | callchain_ret = 1; | |
2458 | } | |
2459 | } | |
2460 | ||
a2ea67d7 SF |
2461 | ttrace = thread__trace(thread, trace->output); |
2462 | if (ttrace == NULL) | |
b91fc39f | 2463 | goto out_put; |
a2ea67d7 SF |
2464 | |
2465 | if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) | |
2466 | ttrace->pfmaj++; | |
2467 | else | |
2468 | ttrace->pfmin++; | |
2469 | ||
2470 | if (trace->summary_only) | |
b91fc39f | 2471 | goto out; |
598d02c5 | 2472 | |
4546263d | 2473 | thread__find_symbol(thread, sample->cpumode, sample->ip, &al); |
598d02c5 | 2474 | |
fd2b2975 | 2475 | trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output); |
598d02c5 SF |
2476 | |
2477 | fprintf(trace->output, "%sfault [", | |
2478 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? | |
2479 | "maj" : "min"); | |
2480 | ||
2481 | print_location(trace->output, sample, &al, false, true); | |
2482 | ||
2483 | fprintf(trace->output, "] => "); | |
2484 | ||
117d3c24 | 2485 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2486 | |
2487 | if (!al.map) { | |
4546263d | 2488 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2489 | |
2490 | if (al.map) | |
2491 | map_type = 'x'; | |
2492 | else | |
2493 | map_type = '?'; | |
2494 | } | |
2495 | ||
2496 | print_location(trace->output, sample, &al, true, false); | |
2497 | ||
2498 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 2499 | |
1df54290 ACM |
2500 | if (callchain_ret > 0) |
2501 | trace__fprintf_callchain(trace, sample); | |
2502 | else if (callchain_ret < 0) | |
2503 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
5067a8cd ACM |
2504 | |
2505 | ++trace->nr_events_printed; | |
b91fc39f ACM |
2506 | out: |
2507 | err = 0; | |
2508 | out_put: | |
2509 | thread__put(thread); | |
2510 | return err; | |
598d02c5 SF |
2511 | } |
2512 | ||
e6001980 | 2513 | static void trace__set_base_time(struct trace *trace, |
32dcd021 | 2514 | struct evsel *evsel, |
e6001980 ACM |
2515 | struct perf_sample *sample) |
2516 | { | |
8a07a809 ACM |
2517 | /* |
2518 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
2519 | * and don't use sample->time unconditionally, we may end up having | |
2520 | * some other event in the future without PERF_SAMPLE_TIME for good | |
2521 | * reason, i.e. we may not be interested in its timestamps, just in | |
2522 | * it taking place, picking some piece of information when it | |
2523 | * appears in our event stream (vfs_getname comes to mind). | |
2524 | */ | |
2525 | if (trace->base_time == 0 && !trace->full_time && | |
2526 | (evsel->attr.sample_type & PERF_SAMPLE_TIME)) | |
e6001980 ACM |
2527 | trace->base_time = sample->time; |
2528 | } | |
2529 | ||
6810fc91 | 2530 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 2531 | union perf_event *event, |
6810fc91 | 2532 | struct perf_sample *sample, |
32dcd021 | 2533 | struct evsel *evsel, |
6810fc91 DA |
2534 | struct machine *machine __maybe_unused) |
2535 | { | |
2536 | struct trace *trace = container_of(tool, struct trace, tool); | |
aa07df6e | 2537 | struct thread *thread; |
6810fc91 DA |
2538 | int err = 0; |
2539 | ||
744a9719 | 2540 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 2541 | |
aa07df6e DA |
2542 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2543 | if (thread && thread__is_filtered(thread)) | |
ef65e96e | 2544 | goto out; |
bdc89661 | 2545 | |
e6001980 | 2546 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 2547 | |
3160565f DA |
2548 | if (handler) { |
2549 | ++trace->nr_events; | |
0c82adcf | 2550 | handler(trace, evsel, event, sample); |
3160565f | 2551 | } |
ef65e96e ACM |
2552 | out: |
2553 | thread__put(thread); | |
6810fc91 DA |
2554 | return err; |
2555 | } | |
2556 | ||
1e28fe0a | 2557 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
2558 | { |
2559 | unsigned int rec_argc, i, j; | |
2560 | const char **rec_argv; | |
2561 | const char * const record_args[] = { | |
2562 | "record", | |
2563 | "-R", | |
2564 | "-m", "1024", | |
2565 | "-c", "1", | |
5e2485b1 DA |
2566 | }; |
2567 | ||
1e28fe0a SF |
2568 | const char * const sc_args[] = { "-e", }; |
2569 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
2570 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
2571 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
2572 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
2573 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
2574 | ||
9aca7f17 | 2575 | /* +1 is for the event string below */ |
1e28fe0a SF |
2576 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + |
2577 | majpf_args_nr + minpf_args_nr + argc; | |
5e2485b1 DA |
2578 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
2579 | ||
2580 | if (rec_argv == NULL) | |
2581 | return -ENOMEM; | |
2582 | ||
1e28fe0a | 2583 | j = 0; |
5e2485b1 | 2584 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
2585 | rec_argv[j++] = record_args[i]; |
2586 | ||
e281a960 SF |
2587 | if (trace->trace_syscalls) { |
2588 | for (i = 0; i < sc_args_nr; i++) | |
2589 | rec_argv[j++] = sc_args[i]; | |
2590 | ||
2591 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
2592 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
2593 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
2594 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
2595 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
2596 | else { | |
2597 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
c896f85a | 2598 | free(rec_argv); |
e281a960 SF |
2599 | return -1; |
2600 | } | |
9aca7f17 | 2601 | } |
9aca7f17 | 2602 | |
1e28fe0a SF |
2603 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
2604 | for (i = 0; i < majpf_args_nr; i++) | |
2605 | rec_argv[j++] = majpf_args[i]; | |
2606 | ||
2607 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
2608 | for (i = 0; i < minpf_args_nr; i++) | |
2609 | rec_argv[j++] = minpf_args[i]; | |
2610 | ||
2611 | for (i = 0; i < (unsigned int)argc; i++) | |
2612 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 2613 | |
b0ad8ea6 | 2614 | return cmd_record(j, rec_argv); |
5e2485b1 DA |
2615 | } |
2616 | ||
bf2575c1 DA |
2617 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
2618 | ||
08c98776 | 2619 | static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) |
c522739d | 2620 | { |
6ab3bc24 | 2621 | bool found = false; |
32dcd021 | 2622 | struct evsel *evsel, *tmp; |
6ab3bc24 ACM |
2623 | struct parse_events_error err = { .idx = 0, }; |
2624 | int ret = parse_events(evlist, "probe:vfs_getname*", &err); | |
8dd2a131 | 2625 | |
6ab3bc24 | 2626 | if (ret) |
08c98776 | 2627 | return false; |
c522739d | 2628 | |
6ab3bc24 ACM |
2629 | evlist__for_each_entry_safe(evlist, evsel, tmp) { |
2630 | if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname")) | |
2631 | continue; | |
2632 | ||
2633 | if (perf_evsel__field(evsel, "pathname")) { | |
2634 | evsel->handler = trace__vfs_getname; | |
2635 | found = true; | |
2636 | continue; | |
2637 | } | |
2638 | ||
2639 | list_del_init(&evsel->node); | |
2640 | evsel->evlist = NULL; | |
c522739d | 2641 | perf_evsel__delete(evsel); |
c522739d ACM |
2642 | } |
2643 | ||
6ab3bc24 | 2644 | return found; |
c522739d ACM |
2645 | } |
2646 | ||
32dcd021 | 2647 | static struct evsel *perf_evsel__new_pgfault(u64 config) |
598d02c5 | 2648 | { |
32dcd021 | 2649 | struct evsel *evsel; |
598d02c5 SF |
2650 | struct perf_event_attr attr = { |
2651 | .type = PERF_TYPE_SOFTWARE, | |
2652 | .mmap_data = 1, | |
598d02c5 SF |
2653 | }; |
2654 | ||
2655 | attr.config = config; | |
0524798c | 2656 | attr.sample_period = 1; |
598d02c5 SF |
2657 | |
2658 | event_attr_init(&attr); | |
2659 | ||
2660 | evsel = perf_evsel__new(&attr); | |
0ae537cb ACM |
2661 | if (evsel) |
2662 | evsel->handler = trace__pgfault; | |
598d02c5 | 2663 | |
0ae537cb | 2664 | return evsel; |
598d02c5 SF |
2665 | } |
2666 | ||
ddbb1b13 ACM |
2667 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
2668 | { | |
2669 | const u32 type = event->header.type; | |
32dcd021 | 2670 | struct evsel *evsel; |
ddbb1b13 | 2671 | |
ddbb1b13 ACM |
2672 | if (type != PERF_RECORD_SAMPLE) { |
2673 | trace__process_event(trace, trace->host, event, sample); | |
2674 | return; | |
2675 | } | |
2676 | ||
2677 | evsel = perf_evlist__id2evsel(trace->evlist, sample->id); | |
2678 | if (evsel == NULL) { | |
2679 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
2680 | return; | |
2681 | } | |
2682 | ||
e6001980 ACM |
2683 | trace__set_base_time(trace, evsel, sample); |
2684 | ||
ddbb1b13 ACM |
2685 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT && |
2686 | sample->raw_data == NULL) { | |
2687 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
2688 | perf_evsel__name(evsel), sample->tid, | |
2689 | sample->cpu, sample->raw_size); | |
2690 | } else { | |
2691 | tracepoint_handler handler = evsel->handler; | |
2692 | handler(trace, evsel, event, sample); | |
2693 | } | |
5067a8cd ACM |
2694 | |
2695 | if (trace->nr_events_printed >= trace->max_events && trace->max_events != ULONG_MAX) | |
2696 | interrupted = true; | |
ddbb1b13 ACM |
2697 | } |
2698 | ||
c27366f0 ACM |
2699 | static int trace__add_syscall_newtp(struct trace *trace) |
2700 | { | |
2701 | int ret = -1; | |
2702 | struct perf_evlist *evlist = trace->evlist; | |
32dcd021 | 2703 | struct evsel *sys_enter, *sys_exit; |
c27366f0 | 2704 | |
63f11c80 | 2705 | sys_enter = perf_evsel__raw_syscall_newtp("sys_enter", trace__sys_enter); |
c27366f0 ACM |
2706 | if (sys_enter == NULL) |
2707 | goto out; | |
2708 | ||
2709 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
2710 | goto out_delete_sys_enter; | |
2711 | ||
63f11c80 | 2712 | sys_exit = perf_evsel__raw_syscall_newtp("sys_exit", trace__sys_exit); |
c27366f0 ACM |
2713 | if (sys_exit == NULL) |
2714 | goto out_delete_sys_enter; | |
2715 | ||
2716 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
2717 | goto out_delete_sys_exit; | |
2718 | ||
08e26396 ACM |
2719 | perf_evsel__config_callchain(sys_enter, &trace->opts, &callchain_param); |
2720 | perf_evsel__config_callchain(sys_exit, &trace->opts, &callchain_param); | |
2721 | ||
c27366f0 ACM |
2722 | perf_evlist__add(evlist, sys_enter); |
2723 | perf_evlist__add(evlist, sys_exit); | |
2724 | ||
2ddd5c04 | 2725 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
2726 | /* |
2727 | * We're interested only in the user space callchain | |
2728 | * leading to the syscall, allow overriding that for | |
2729 | * debugging reasons using --kernel_syscall_callchains | |
2730 | */ | |
2731 | sys_exit->attr.exclude_callchain_kernel = 1; | |
2732 | } | |
2733 | ||
8b3ce757 ACM |
2734 | trace->syscalls.events.sys_enter = sys_enter; |
2735 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
2736 | |
2737 | ret = 0; | |
2738 | out: | |
2739 | return ret; | |
2740 | ||
2741 | out_delete_sys_exit: | |
2742 | perf_evsel__delete_priv(sys_exit); | |
2743 | out_delete_sys_enter: | |
2744 | perf_evsel__delete_priv(sys_enter); | |
2745 | goto out; | |
2746 | } | |
2747 | ||
246fbe03 | 2748 | static int trace__set_ev_qualifier_tp_filter(struct trace *trace) |
19867b61 ACM |
2749 | { |
2750 | int err = -1; | |
32dcd021 | 2751 | struct evsel *sys_exit; |
19867b61 ACM |
2752 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, |
2753 | trace->ev_qualifier_ids.nr, | |
2754 | trace->ev_qualifier_ids.entries); | |
2755 | ||
2756 | if (filter == NULL) | |
2757 | goto out_enomem; | |
2758 | ||
3541c034 MP |
2759 | if (!perf_evsel__append_tp_filter(trace->syscalls.events.sys_enter, |
2760 | filter)) { | |
b15d0a4c | 2761 | sys_exit = trace->syscalls.events.sys_exit; |
3541c034 | 2762 | err = perf_evsel__append_tp_filter(sys_exit, filter); |
b15d0a4c | 2763 | } |
19867b61 ACM |
2764 | |
2765 | free(filter); | |
2766 | out: | |
2767 | return err; | |
2768 | out_enomem: | |
2769 | errno = ENOMEM; | |
2770 | goto out; | |
2771 | } | |
c27366f0 | 2772 | |
b27b38ed | 2773 | #ifdef HAVE_LIBBPF_SUPPORT |
5834da7f ACM |
2774 | static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace, const char *name) |
2775 | { | |
2776 | if (trace->bpf_obj == NULL) | |
2777 | return NULL; | |
2778 | ||
2779 | return bpf_object__find_program_by_title(trace->bpf_obj, name); | |
2780 | } | |
2781 | ||
6ff8fff4 ACM |
2782 | static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, struct syscall *sc, |
2783 | const char *prog_name, const char *type) | |
2784 | { | |
2785 | struct bpf_program *prog; | |
2786 | ||
8b8044e5 ACM |
2787 | if (prog_name == NULL) { |
2788 | char default_prog_name[256]; | |
2789 | scnprintf(default_prog_name, sizeof(default_prog_name), "!syscalls:sys_%s_%s", type, sc->name); | |
2790 | prog = trace__find_bpf_program_by_title(trace, default_prog_name); | |
2791 | if (prog != NULL) | |
2792 | goto out_found; | |
2793 | if (sc->fmt && sc->fmt->alias) { | |
2794 | scnprintf(default_prog_name, sizeof(default_prog_name), "!syscalls:sys_%s_%s", type, sc->fmt->alias); | |
2795 | prog = trace__find_bpf_program_by_title(trace, default_prog_name); | |
2796 | if (prog != NULL) | |
2797 | goto out_found; | |
2798 | } | |
6ff8fff4 | 2799 | goto out_unaugmented; |
8b8044e5 | 2800 | } |
6ff8fff4 ACM |
2801 | |
2802 | prog = trace__find_bpf_program_by_title(trace, prog_name); | |
8b8044e5 ACM |
2803 | |
2804 | if (prog != NULL) { | |
2805 | out_found: | |
6ff8fff4 | 2806 | return prog; |
8b8044e5 | 2807 | } |
6ff8fff4 ACM |
2808 | |
2809 | pr_debug("Couldn't find BPF prog \"%s\" to associate with syscalls:sys_%s_%s, not augmenting it\n", | |
2810 | prog_name, type, sc->name); | |
2811 | out_unaugmented: | |
2812 | return trace->syscalls.unaugmented_prog; | |
2813 | } | |
2814 | ||
2815 | static void trace__init_syscall_bpf_progs(struct trace *trace, int id) | |
2816 | { | |
2817 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
2818 | ||
2819 | if (sc == NULL) | |
2820 | return; | |
2821 | ||
8b8044e5 ACM |
2822 | sc->bpf_prog.sys_enter = trace__find_syscall_bpf_prog(trace, sc, sc->fmt ? sc->fmt->bpf_prog_name.sys_enter : NULL, "enter"); |
2823 | sc->bpf_prog.sys_exit = trace__find_syscall_bpf_prog(trace, sc, sc->fmt ? sc->fmt->bpf_prog_name.sys_exit : NULL, "exit"); | |
6ff8fff4 ACM |
2824 | } |
2825 | ||
3803a229 ACM |
2826 | static int trace__bpf_prog_sys_enter_fd(struct trace *trace, int id) |
2827 | { | |
2828 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
2829 | return sc ? bpf_program__fd(sc->bpf_prog.sys_enter) : bpf_program__fd(trace->syscalls.unaugmented_prog); | |
2830 | } | |
2831 | ||
2832 | static int trace__bpf_prog_sys_exit_fd(struct trace *trace, int id) | |
2833 | { | |
2834 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
2835 | return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(trace->syscalls.unaugmented_prog); | |
2836 | } | |
2837 | ||
4cae8675 ACM |
2838 | static void trace__init_bpf_map_syscall_args(struct trace *trace, int id, struct bpf_map_syscall_entry *entry) |
2839 | { | |
2840 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
2841 | int arg = 0; | |
2842 | ||
2843 | if (sc == NULL) | |
2844 | goto out; | |
2845 | ||
2846 | for (; arg < sc->nr_args; ++arg) { | |
2847 | entry->string_args_len[arg] = 0; | |
2848 | if (sc->arg_fmt[arg].scnprintf == SCA_FILENAME) { | |
2849 | /* Should be set like strace -s strsize */ | |
2850 | entry->string_args_len[arg] = PATH_MAX; | |
2851 | } | |
2852 | } | |
2853 | out: | |
2854 | for (; arg < 6; ++arg) | |
2855 | entry->string_args_len[arg] = 0; | |
2856 | } | |
b27b38ed ACM |
2857 | static int trace__set_ev_qualifier_bpf_filter(struct trace *trace) |
2858 | { | |
2859 | int fd = bpf_map__fd(trace->syscalls.map); | |
bbab50dd ACM |
2860 | struct bpf_map_syscall_entry value = { |
2861 | .enabled = !trace->not_ev_qualifier, | |
2862 | }; | |
b27b38ed ACM |
2863 | int err = 0; |
2864 | size_t i; | |
2865 | ||
2866 | for (i = 0; i < trace->ev_qualifier_ids.nr; ++i) { | |
2867 | int key = trace->ev_qualifier_ids.entries[i]; | |
2868 | ||
6ff8fff4 | 2869 | if (value.enabled) { |
4cae8675 | 2870 | trace__init_bpf_map_syscall_args(trace, key, &value); |
6ff8fff4 ACM |
2871 | trace__init_syscall_bpf_progs(trace, key); |
2872 | } | |
4cae8675 | 2873 | |
b27b38ed ACM |
2874 | err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST); |
2875 | if (err) | |
2876 | break; | |
2877 | } | |
2878 | ||
2879 | return err; | |
2880 | } | |
2881 | ||
2882 | static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled) | |
2883 | { | |
2884 | int fd = bpf_map__fd(trace->syscalls.map); | |
bbab50dd ACM |
2885 | struct bpf_map_syscall_entry value = { |
2886 | .enabled = enabled, | |
2887 | }; | |
b27b38ed ACM |
2888 | int err = 0, key; |
2889 | ||
2890 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
3803a229 | 2891 | if (enabled) |
4cae8675 ACM |
2892 | trace__init_bpf_map_syscall_args(trace, key, &value); |
2893 | ||
bbab50dd | 2894 | err = bpf_map_update_elem(fd, &key, &value, BPF_ANY); |
b27b38ed ACM |
2895 | if (err) |
2896 | break; | |
2897 | } | |
2898 | ||
2899 | return err; | |
2900 | } | |
2901 | ||
2902 | static int trace__init_syscalls_bpf_map(struct trace *trace) | |
2903 | { | |
2904 | bool enabled = true; | |
2905 | ||
2906 | if (trace->ev_qualifier_ids.nr) | |
2907 | enabled = trace->not_ev_qualifier; | |
2908 | ||
2909 | return __trace__init_syscalls_bpf_map(trace, enabled); | |
2910 | } | |
3803a229 | 2911 | |
ad4153f9 ACM |
2912 | static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace, struct syscall *sc) |
2913 | { | |
2914 | struct tep_format_field *field, *candidate_field; | |
2915 | int id; | |
2916 | ||
2917 | /* | |
2918 | * We're only interested in syscalls that have a pointer: | |
2919 | */ | |
2920 | for (field = sc->args; field; field = field->next) { | |
2921 | if (field->flags & TEP_FIELD_IS_POINTER) | |
2922 | goto try_to_find_pair; | |
2923 | } | |
2924 | ||
2925 | return NULL; | |
2926 | ||
2927 | try_to_find_pair: | |
2928 | for (id = 0; id < trace->sctbl->syscalls.nr_entries; ++id) { | |
2929 | struct syscall *pair = trace__syscall_info(trace, NULL, id); | |
2930 | struct bpf_program *pair_prog; | |
2931 | bool is_candidate = false; | |
2932 | ||
2933 | if (pair == NULL || pair == sc || | |
2934 | pair->bpf_prog.sys_enter == trace->syscalls.unaugmented_prog) | |
2935 | continue; | |
2936 | ||
2937 | for (field = sc->args, candidate_field = pair->args; | |
2938 | field && candidate_field; field = field->next, candidate_field = candidate_field->next) { | |
2939 | bool is_pointer = field->flags & TEP_FIELD_IS_POINTER, | |
2940 | candidate_is_pointer = candidate_field->flags & TEP_FIELD_IS_POINTER; | |
2941 | ||
2942 | if (is_pointer) { | |
2943 | if (!candidate_is_pointer) { | |
2944 | // The candidate just doesn't copies our pointer arg, might copy other pointers we want. | |
2945 | continue; | |
2946 | } | |
2947 | } else { | |
2948 | if (candidate_is_pointer) { | |
2949 | // The candidate might copy a pointer we don't have, skip it. | |
2950 | goto next_candidate; | |
2951 | } | |
2952 | continue; | |
2953 | } | |
2954 | ||
2955 | if (strcmp(field->type, candidate_field->type)) | |
2956 | goto next_candidate; | |
2957 | ||
2958 | is_candidate = true; | |
2959 | } | |
2960 | ||
2961 | if (!is_candidate) | |
2962 | goto next_candidate; | |
2963 | ||
2964 | /* | |
2965 | * Check if the tentative pair syscall augmenter has more pointers, if it has, | |
2966 | * then it may be collecting that and we then can't use it, as it would collect | |
2967 | * more than what is common to the two syscalls. | |
2968 | */ | |
2969 | if (candidate_field) { | |
2970 | for (candidate_field = candidate_field->next; candidate_field; candidate_field = candidate_field->next) | |
2971 | if (candidate_field->flags & TEP_FIELD_IS_POINTER) | |
2972 | goto next_candidate; | |
2973 | } | |
2974 | ||
2975 | pair_prog = pair->bpf_prog.sys_enter; | |
2976 | /* | |
2977 | * If the pair isn't enabled, then its bpf_prog.sys_enter will not | |
2978 | * have been searched for, so search it here and if it returns the | |
2979 | * unaugmented one, then ignore it, otherwise we'll reuse that BPF | |
2980 | * program for a filtered syscall on a non-filtered one. | |
2981 | * | |
2982 | * For instance, we have "!syscalls:sys_enter_renameat" and that is | |
2983 | * useful for "renameat2". | |
2984 | */ | |
2985 | if (pair_prog == NULL) { | |
2986 | pair_prog = trace__find_syscall_bpf_prog(trace, pair, pair->fmt ? pair->fmt->bpf_prog_name.sys_enter : NULL, "enter"); | |
2987 | if (pair_prog == trace->syscalls.unaugmented_prog) | |
2988 | goto next_candidate; | |
2989 | } | |
2990 | ||
2991 | pr_debug("Reusing \"%s\" BPF sys_enter augmenter for \"%s\"\n", pair->name, sc->name); | |
2992 | return pair_prog; | |
2993 | next_candidate: | |
2994 | continue; | |
2995 | } | |
2996 | ||
2997 | return NULL; | |
2998 | } | |
2999 | ||
3803a229 ACM |
3000 | static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace) |
3001 | { | |
3002 | int map_enter_fd = bpf_map__fd(trace->syscalls.prog_array.sys_enter), | |
3003 | map_exit_fd = bpf_map__fd(trace->syscalls.prog_array.sys_exit); | |
3004 | int err = 0, key; | |
3005 | ||
3006 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
3007 | int prog_fd; | |
3008 | ||
3009 | if (!trace__syscall_enabled(trace, key)) | |
3010 | continue; | |
3011 | ||
3012 | trace__init_syscall_bpf_progs(trace, key); | |
3013 | ||
3014 | // It'll get at least the "!raw_syscalls:unaugmented" | |
3015 | prog_fd = trace__bpf_prog_sys_enter_fd(trace, key); | |
3016 | err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY); | |
3017 | if (err) | |
3018 | break; | |
3019 | prog_fd = trace__bpf_prog_sys_exit_fd(trace, key); | |
3020 | err = bpf_map_update_elem(map_exit_fd, &key, &prog_fd, BPF_ANY); | |
3021 | if (err) | |
3022 | break; | |
3023 | } | |
3024 | ||
ad4153f9 ACM |
3025 | /* |
3026 | * Now lets do a second pass looking for enabled syscalls without | |
3027 | * an augmenter that have a signature that is a superset of another | |
3028 | * syscall with an augmenter so that we can auto-reuse it. | |
3029 | * | |
3030 | * I.e. if we have an augmenter for the "open" syscall that has | |
3031 | * this signature: | |
3032 | * | |
3033 | * int open(const char *pathname, int flags, mode_t mode); | |
3034 | * | |
3035 | * I.e. that will collect just the first string argument, then we | |
3036 | * can reuse it for the 'creat' syscall, that has this signature: | |
3037 | * | |
3038 | * int creat(const char *pathname, mode_t mode); | |
3039 | * | |
3040 | * and for: | |
3041 | * | |
3042 | * int stat(const char *pathname, struct stat *statbuf); | |
3043 | * int lstat(const char *pathname, struct stat *statbuf); | |
3044 | * | |
3045 | * Because the 'open' augmenter will collect the first arg as a string, | |
3046 | * and leave alone all the other args, which already helps with | |
3047 | * beautifying 'stat' and 'lstat''s pathname arg. | |
3048 | * | |
3049 | * Then, in time, when 'stat' gets an augmenter that collects both | |
3050 | * first and second arg (this one on the raw_syscalls:sys_exit prog | |
3051 | * array tail call, then that one will be used. | |
3052 | */ | |
3053 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
3054 | struct syscall *sc = trace__syscall_info(trace, NULL, key); | |
3055 | struct bpf_program *pair_prog; | |
3056 | int prog_fd; | |
3057 | ||
3058 | if (sc == NULL || sc->bpf_prog.sys_enter == NULL) | |
3059 | continue; | |
3060 | ||
3061 | /* | |
3062 | * For now we're just reusing the sys_enter prog, and if it | |
3063 | * already has an augmenter, we don't need to find one. | |
3064 | */ | |
3065 | if (sc->bpf_prog.sys_enter != trace->syscalls.unaugmented_prog) | |
3066 | continue; | |
3067 | ||
3068 | /* | |
3069 | * Look at all the other syscalls for one that has a signature | |
3070 | * that is close enough that we can share: | |
3071 | */ | |
3072 | pair_prog = trace__find_usable_bpf_prog_entry(trace, sc); | |
3073 | if (pair_prog == NULL) | |
3074 | continue; | |
3075 | ||
3076 | sc->bpf_prog.sys_enter = pair_prog; | |
3077 | ||
3078 | /* | |
3079 | * Update the BPF_MAP_TYPE_PROG_SHARED for raw_syscalls:sys_enter | |
3080 | * with the fd for the program we're reusing: | |
3081 | */ | |
3082 | prog_fd = bpf_program__fd(sc->bpf_prog.sys_enter); | |
3083 | err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY); | |
3084 | if (err) | |
3085 | break; | |
3086 | } | |
3087 | ||
3088 | ||
3803a229 ACM |
3089 | return err; |
3090 | } | |
b27b38ed ACM |
3091 | #else |
3092 | static int trace__set_ev_qualifier_bpf_filter(struct trace *trace __maybe_unused) | |
3093 | { | |
3094 | return 0; | |
3095 | } | |
3096 | ||
3097 | static int trace__init_syscalls_bpf_map(struct trace *trace __maybe_unused) | |
3098 | { | |
3099 | return 0; | |
3100 | } | |
5834da7f ACM |
3101 | |
3102 | static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace __maybe_unused, | |
3103 | const char *name __maybe_unused) | |
3104 | { | |
3105 | return NULL; | |
3106 | } | |
3803a229 ACM |
3107 | |
3108 | static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace __maybe_unused) | |
3109 | { | |
3110 | return 0; | |
3111 | } | |
b27b38ed ACM |
3112 | #endif // HAVE_LIBBPF_SUPPORT |
3113 | ||
246fbe03 ACM |
3114 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
3115 | { | |
b27b38ed ACM |
3116 | if (trace->syscalls.map) |
3117 | return trace__set_ev_qualifier_bpf_filter(trace); | |
f76214f9 ACM |
3118 | if (trace->syscalls.events.sys_enter) |
3119 | return trace__set_ev_qualifier_tp_filter(trace); | |
3120 | return 0; | |
246fbe03 ACM |
3121 | } |
3122 | ||
a9964c43 ACM |
3123 | static int bpf_map__set_filter_pids(struct bpf_map *map __maybe_unused, |
3124 | size_t npids __maybe_unused, pid_t *pids __maybe_unused) | |
3125 | { | |
3126 | int err = 0; | |
3127 | #ifdef HAVE_LIBBPF_SUPPORT | |
3128 | bool value = true; | |
3129 | int map_fd = bpf_map__fd(map); | |
3130 | size_t i; | |
3131 | ||
3132 | for (i = 0; i < npids; ++i) { | |
3133 | err = bpf_map_update_elem(map_fd, &pids[i], &value, BPF_ANY); | |
3134 | if (err) | |
3135 | break; | |
3136 | } | |
3137 | #endif | |
3138 | return err; | |
3139 | } | |
3140 | ||
dd1a5037 ACM |
3141 | static int trace__set_filter_loop_pids(struct trace *trace) |
3142 | { | |
a9964c43 | 3143 | unsigned int nr = 1, err; |
dd1a5037 ACM |
3144 | pid_t pids[32] = { |
3145 | getpid(), | |
3146 | }; | |
082ab9a1 ACM |
3147 | struct thread *thread = machine__find_thread(trace->host, pids[0], pids[0]); |
3148 | ||
3149 | while (thread && nr < ARRAY_SIZE(pids)) { | |
3150 | struct thread *parent = machine__find_thread(trace->host, thread->ppid, thread->ppid); | |
3151 | ||
3152 | if (parent == NULL) | |
3153 | break; | |
3154 | ||
ca2da70c ACM |
3155 | if (!strcmp(thread__comm_str(parent), "sshd") || |
3156 | strstarts(thread__comm_str(parent), "gnome-terminal")) { | |
082ab9a1 ACM |
3157 | pids[nr++] = parent->tid; |
3158 | break; | |
3159 | } | |
3160 | thread = parent; | |
3161 | } | |
dd1a5037 | 3162 | |
a9964c43 ACM |
3163 | err = perf_evlist__set_tp_filter_pids(trace->evlist, nr, pids); |
3164 | if (!err && trace->filter_pids.map) | |
3165 | err = bpf_map__set_filter_pids(trace->filter_pids.map, nr, pids); | |
3166 | ||
3167 | return err; | |
3168 | } | |
3169 | ||
3170 | static int trace__set_filter_pids(struct trace *trace) | |
3171 | { | |
3172 | int err = 0; | |
3173 | /* | |
3174 | * Better not use !target__has_task() here because we need to cover the | |
3175 | * case where no threads were specified in the command line, but a | |
3176 | * workload was, and in that case we will fill in the thread_map when | |
3177 | * we fork the workload in perf_evlist__prepare_workload. | |
3178 | */ | |
3179 | if (trace->filter_pids.nr > 0) { | |
3180 | err = perf_evlist__set_tp_filter_pids(trace->evlist, trace->filter_pids.nr, | |
3181 | trace->filter_pids.entries); | |
3182 | if (!err && trace->filter_pids.map) { | |
3183 | err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr, | |
3184 | trace->filter_pids.entries); | |
3185 | } | |
3186 | } else if (thread_map__pid(trace->evlist->threads, 0) == -1) { | |
3187 | err = trace__set_filter_loop_pids(trace); | |
3188 | } | |
3189 | ||
3190 | return err; | |
dd1a5037 ACM |
3191 | } |
3192 | ||
7ba61524 | 3193 | static int __trace__deliver_event(struct trace *trace, union perf_event *event) |
1f44b3e2 JO |
3194 | { |
3195 | struct perf_evlist *evlist = trace->evlist; | |
3196 | struct perf_sample sample; | |
3197 | int err; | |
3198 | ||
3199 | err = perf_evlist__parse_sample(evlist, event, &sample); | |
3200 | if (err) | |
3201 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); | |
3202 | else | |
3203 | trace__handle_event(trace, event, &sample); | |
3204 | ||
3205 | return 0; | |
3206 | } | |
3207 | ||
a761a8d1 | 3208 | static int __trace__flush_events(struct trace *trace) |
028713aa JO |
3209 | { |
3210 | u64 first = ordered_events__first_time(&trace->oe.data); | |
3211 | u64 flush = trace->oe.last - NSEC_PER_SEC; | |
3212 | ||
3213 | /* Is there some thing to flush.. */ | |
3214 | if (first && first < flush) | |
3215 | return ordered_events__flush_time(&trace->oe.data, flush); | |
3216 | ||
3217 | return 0; | |
3218 | } | |
3219 | ||
a761a8d1 ACM |
3220 | static int trace__flush_events(struct trace *trace) |
3221 | { | |
3222 | return !trace->sort_events ? 0 : __trace__flush_events(trace); | |
3223 | } | |
3224 | ||
7ba61524 | 3225 | static int trace__deliver_event(struct trace *trace, union perf_event *event) |
028713aa | 3226 | { |
028713aa JO |
3227 | int err; |
3228 | ||
a761a8d1 ACM |
3229 | if (!trace->sort_events) |
3230 | return __trace__deliver_event(trace, event); | |
3231 | ||
3232 | err = perf_evlist__parse_sample_timestamp(trace->evlist, event, &trace->oe.last); | |
028713aa JO |
3233 | if (err && err != -1) |
3234 | return err; | |
3235 | ||
3236 | err = ordered_events__queue(&trace->oe.data, event, trace->oe.last, 0); | |
3237 | if (err) | |
3238 | return err; | |
3239 | ||
7ba61524 | 3240 | return trace__flush_events(trace); |
028713aa JO |
3241 | } |
3242 | ||
3243 | static int ordered_events__deliver_event(struct ordered_events *oe, | |
3244 | struct ordered_event *event) | |
3245 | { | |
3246 | struct trace *trace = container_of(oe, struct trace, oe.data); | |
3247 | ||
7ba61524 | 3248 | return __trace__deliver_event(trace, event->event); |
028713aa JO |
3249 | } |
3250 | ||
f15eb531 | 3251 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 3252 | { |
14a052df | 3253 | struct perf_evlist *evlist = trace->evlist; |
32dcd021 | 3254 | struct evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
3255 | int err = -1, i; |
3256 | unsigned long before; | |
f15eb531 | 3257 | const bool forks = argc > 0; |
46fb3c21 | 3258 | bool draining = false; |
514f1c67 | 3259 | |
75b757ca ACM |
3260 | trace->live = true; |
3261 | ||
0df50e0b ACM |
3262 | if (!trace->raw_augmented_syscalls) { |
3263 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) | |
3264 | goto out_error_raw_syscalls; | |
514f1c67 | 3265 | |
0df50e0b ACM |
3266 | if (trace->trace_syscalls) |
3267 | trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); | |
3268 | } | |
c522739d | 3269 | |
0ae537cb ACM |
3270 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
3271 | pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); | |
3272 | if (pgfault_maj == NULL) | |
3273 | goto out_error_mem; | |
08e26396 | 3274 | perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); |
0ae537cb | 3275 | perf_evlist__add(evlist, pgfault_maj); |
e2726d99 | 3276 | } |
598d02c5 | 3277 | |
0ae537cb ACM |
3278 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
3279 | pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); | |
3280 | if (pgfault_min == NULL) | |
3281 | goto out_error_mem; | |
08e26396 | 3282 | perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); |
0ae537cb ACM |
3283 | perf_evlist__add(evlist, pgfault_min); |
3284 | } | |
598d02c5 | 3285 | |
1302d88e | 3286 | if (trace->sched && |
2cc990ba ACM |
3287 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", |
3288 | trace__sched_stat_runtime)) | |
3289 | goto out_error_sched_stat_runtime; | |
1302d88e | 3290 | |
9ea42ba4 ACM |
3291 | /* |
3292 | * If a global cgroup was set, apply it to all the events without an | |
3293 | * explicit cgroup. I.e.: | |
3294 | * | |
3295 | * trace -G A -e sched:*switch | |
3296 | * | |
3297 | * Will set all raw_syscalls:sys_{enter,exit}, pgfault, vfs_getname, etc | |
3298 | * _and_ sched:sched_switch to the 'A' cgroup, while: | |
3299 | * | |
3300 | * trace -e sched:*switch -G A | |
3301 | * | |
3302 | * will only set the sched:sched_switch event to the 'A' cgroup, all the | |
3303 | * other events (raw_syscalls:sys_{enter,exit}, etc are left "without" | |
3304 | * a cgroup (on the root cgroup, sys wide, etc). | |
3305 | * | |
3306 | * Multiple cgroups: | |
3307 | * | |
3308 | * trace -G A -e sched:*switch -G B | |
3309 | * | |
3310 | * the syscall ones go to the 'A' cgroup, the sched:sched_switch goes | |
3311 | * to the 'B' cgroup. | |
3312 | * | |
3313 | * evlist__set_default_cgroup() grabs a reference of the passed cgroup | |
3314 | * only for the evsels still without a cgroup, i.e. evsel->cgroup == NULL. | |
3315 | */ | |
3316 | if (trace->cgroup) | |
3317 | evlist__set_default_cgroup(trace->evlist, trace->cgroup); | |
3318 | ||
514f1c67 ACM |
3319 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
3320 | if (err < 0) { | |
c24ff998 | 3321 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
3322 | goto out_delete_evlist; |
3323 | } | |
3324 | ||
752fde44 ACM |
3325 | err = trace__symbols_init(trace, evlist); |
3326 | if (err < 0) { | |
c24ff998 | 3327 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 3328 | goto out_delete_evlist; |
752fde44 ACM |
3329 | } |
3330 | ||
75d50117 | 3331 | perf_evlist__config(evlist, &trace->opts, &callchain_param); |
fde54b78 | 3332 | |
f15eb531 NK |
3333 | signal(SIGCHLD, sig_handler); |
3334 | signal(SIGINT, sig_handler); | |
3335 | ||
3336 | if (forks) { | |
6ef73ec4 | 3337 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
735f7e0b | 3338 | argv, false, NULL); |
f15eb531 | 3339 | if (err < 0) { |
c24ff998 | 3340 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 3341 | goto out_delete_evlist; |
f15eb531 NK |
3342 | } |
3343 | } | |
3344 | ||
514f1c67 | 3345 | err = perf_evlist__open(evlist); |
a8f23d8f ACM |
3346 | if (err < 0) |
3347 | goto out_error_open; | |
514f1c67 | 3348 | |
ba504235 WN |
3349 | err = bpf__apply_obj_config(); |
3350 | if (err) { | |
3351 | char errbuf[BUFSIZ]; | |
3352 | ||
3353 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
3354 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
3355 | errbuf); | |
3356 | goto out_error_open; | |
3357 | } | |
3358 | ||
a9964c43 | 3359 | err = trace__set_filter_pids(trace); |
94ad89bc ACM |
3360 | if (err < 0) |
3361 | goto out_error_mem; | |
3362 | ||
b27b38ed ACM |
3363 | if (trace->syscalls.map) |
3364 | trace__init_syscalls_bpf_map(trace); | |
3365 | ||
3803a229 ACM |
3366 | if (trace->syscalls.prog_array.sys_enter) |
3367 | trace__init_syscalls_bpf_prog_array_maps(trace); | |
3368 | ||
19867b61 ACM |
3369 | if (trace->ev_qualifier_ids.nr > 0) { |
3370 | err = trace__set_ev_qualifier_filter(trace); | |
3371 | if (err < 0) | |
3372 | goto out_errno; | |
19867b61 | 3373 | |
0df50e0b ACM |
3374 | if (trace->syscalls.events.sys_exit) { |
3375 | pr_debug("event qualifier tracepoint filter: %s\n", | |
3376 | trace->syscalls.events.sys_exit->filter); | |
3377 | } | |
2e5e5f87 | 3378 | } |
19867b61 | 3379 | |
79d725cd ACM |
3380 | /* |
3381 | * If the "close" syscall is not traced, then we will not have the | |
3382 | * opportunity to, in syscall_arg__scnprintf_close_fd() invalidate the | |
3383 | * fd->pathname table and were ending up showing the last value set by | |
3384 | * syscalls opening a pathname and associating it with a descriptor or | |
3385 | * reading it from /proc/pid/fd/ in cases where that doesn't make | |
3386 | * sense. | |
3387 | * | |
3388 | * So just disable this beautifier (SCA_FD, SCA_FDAT) when 'close' is | |
3389 | * not in use. | |
3390 | */ | |
3391 | trace->fd_path_disabled = !trace__syscall_enabled(trace, syscalltbl__id(trace->sctbl, "close")); | |
3392 | ||
94ad89bc ACM |
3393 | err = perf_evlist__apply_filters(evlist, &evsel); |
3394 | if (err < 0) | |
3395 | goto out_error_apply_filters; | |
241b057c | 3396 | |
ff7a4f98 ACM |
3397 | if (trace->dump.map) |
3398 | bpf_map__fprintf(trace->dump.map, trace->output); | |
3399 | ||
f74b9d3a | 3400 | err = perf_evlist__mmap(evlist, trace->opts.mmap_pages); |
e09b18d4 ACM |
3401 | if (err < 0) |
3402 | goto out_error_mmap; | |
514f1c67 | 3403 | |
e36b7821 | 3404 | if (!target__none(&trace->opts.target) && !trace->opts.initial_delay) |
cb24d01d ACM |
3405 | perf_evlist__enable(evlist); |
3406 | ||
f15eb531 NK |
3407 | if (forks) |
3408 | perf_evlist__start_workload(evlist); | |
3409 | ||
e36b7821 AB |
3410 | if (trace->opts.initial_delay) { |
3411 | usleep(trace->opts.initial_delay * 1000); | |
3412 | perf_evlist__enable(evlist); | |
3413 | } | |
3414 | ||
e13798c7 | 3415 | trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 || |
42052bea ACM |
3416 | evlist->threads->nr > 1 || |
3417 | perf_evlist__first(evlist)->attr.inherit; | |
bd3dda9a ACM |
3418 | |
3419 | /* | |
3420 | * Now that we already used evsel->attr to ask the kernel to setup the | |
3421 | * events, lets reuse evsel->attr.sample_max_stack as the limit in | |
3422 | * trace__resolve_callchain(), allowing per-event max-stack settings | |
adba1634 | 3423 | * to override an explicitly set --max-stack global setting. |
bd3dda9a ACM |
3424 | */ |
3425 | evlist__for_each_entry(evlist, evsel) { | |
27de9b2b | 3426 | if (evsel__has_callchain(evsel) && |
bd3dda9a ACM |
3427 | evsel->attr.sample_max_stack == 0) |
3428 | evsel->attr.sample_max_stack = trace->max_stack; | |
3429 | } | |
514f1c67 | 3430 | again: |
efd5745e | 3431 | before = trace->nr_events; |
514f1c67 ACM |
3432 | |
3433 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
3434 | union perf_event *event; | |
d7f55c62 | 3435 | struct perf_mmap *md; |
514f1c67 | 3436 | |
d7f55c62 | 3437 | md = &evlist->mmap[i]; |
b9bae2c8 | 3438 | if (perf_mmap__read_init(md) < 0) |
d7f55c62 KL |
3439 | continue; |
3440 | ||
0019dc87 | 3441 | while ((event = perf_mmap__read_event(md)) != NULL) { |
efd5745e | 3442 | ++trace->nr_events; |
514f1c67 | 3443 | |
7ba61524 | 3444 | err = trace__deliver_event(trace, event); |
028713aa JO |
3445 | if (err) |
3446 | goto out_disable; | |
514f1c67 | 3447 | |
d6ace3df | 3448 | perf_mmap__consume(md); |
20c5f10e | 3449 | |
ba209f85 ACM |
3450 | if (interrupted) |
3451 | goto out_disable; | |
02ac5421 ACM |
3452 | |
3453 | if (done && !draining) { | |
3454 | perf_evlist__disable(evlist); | |
3455 | draining = true; | |
3456 | } | |
514f1c67 | 3457 | } |
d7f55c62 | 3458 | perf_mmap__read_done(md); |
514f1c67 ACM |
3459 | } |
3460 | ||
efd5745e | 3461 | if (trace->nr_events == before) { |
ba209f85 | 3462 | int timeout = done ? 100 : -1; |
f15eb531 | 3463 | |
46fb3c21 | 3464 | if (!draining && perf_evlist__poll(evlist, timeout) > 0) { |
a9c5e6c1 | 3465 | if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP | POLLNVAL) == 0) |
46fb3c21 ACM |
3466 | draining = true; |
3467 | ||
ba209f85 | 3468 | goto again; |
028713aa | 3469 | } else { |
7ba61524 | 3470 | if (trace__flush_events(trace)) |
028713aa | 3471 | goto out_disable; |
46fb3c21 | 3472 | } |
ba209f85 ACM |
3473 | } else { |
3474 | goto again; | |
f15eb531 NK |
3475 | } |
3476 | ||
ba209f85 | 3477 | out_disable: |
f3b623b8 ACM |
3478 | thread__zput(trace->current); |
3479 | ||
ba209f85 | 3480 | perf_evlist__disable(evlist); |
514f1c67 | 3481 | |
a761a8d1 ACM |
3482 | if (trace->sort_events) |
3483 | ordered_events__flush(&trace->oe.data, OE_FLUSH__FINAL); | |
028713aa | 3484 | |
c522739d ACM |
3485 | if (!err) { |
3486 | if (trace->summary) | |
3487 | trace__fprintf_thread_summary(trace, trace->output); | |
3488 | ||
3489 | if (trace->show_tool_stats) { | |
3490 | fprintf(trace->output, "Stats:\n " | |
3491 | " vfs_getname : %" PRIu64 "\n" | |
3492 | " proc_getname: %" PRIu64 "\n", | |
3493 | trace->stats.vfs_getname, | |
3494 | trace->stats.proc_getname); | |
3495 | } | |
3496 | } | |
bf2575c1 | 3497 | |
514f1c67 | 3498 | out_delete_evlist: |
33974a41 AV |
3499 | trace__symbols__exit(trace); |
3500 | ||
514f1c67 | 3501 | perf_evlist__delete(evlist); |
9ea42ba4 | 3502 | cgroup__put(trace->cgroup); |
14a052df | 3503 | trace->evlist = NULL; |
75b757ca | 3504 | trace->live = false; |
514f1c67 | 3505 | return err; |
6ef068cb ACM |
3506 | { |
3507 | char errbuf[BUFSIZ]; | |
a8f23d8f | 3508 | |
2cc990ba | 3509 | out_error_sched_stat_runtime: |
988bdb31 | 3510 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
3511 | goto out_error; |
3512 | ||
801c67b0 | 3513 | out_error_raw_syscalls: |
988bdb31 | 3514 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
3515 | goto out_error; |
3516 | ||
e09b18d4 ACM |
3517 | out_error_mmap: |
3518 | perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); | |
3519 | goto out_error; | |
3520 | ||
a8f23d8f ACM |
3521 | out_error_open: |
3522 | perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); | |
3523 | ||
3524 | out_error: | |
6ef068cb | 3525 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 3526 | goto out_delete_evlist; |
94ad89bc ACM |
3527 | |
3528 | out_error_apply_filters: | |
3529 | fprintf(trace->output, | |
3530 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
3531 | evsel->filter, perf_evsel__name(evsel), errno, | |
c8b5f2c9 | 3532 | str_error_r(errno, errbuf, sizeof(errbuf))); |
94ad89bc | 3533 | goto out_delete_evlist; |
514f1c67 | 3534 | } |
5ed08dae ACM |
3535 | out_error_mem: |
3536 | fprintf(trace->output, "Not enough memory to run!\n"); | |
3537 | goto out_delete_evlist; | |
19867b61 ACM |
3538 | |
3539 | out_errno: | |
3540 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
3541 | goto out_delete_evlist; | |
a8f23d8f | 3542 | } |
514f1c67 | 3543 | |
6810fc91 DA |
3544 | static int trace__replay(struct trace *trace) |
3545 | { | |
32dcd021 | 3546 | const struct evsel_str_handler handlers[] = { |
c522739d | 3547 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 3548 | }; |
8ceb41d7 | 3549 | struct perf_data data = { |
2d4f2799 JO |
3550 | .path = input_name, |
3551 | .mode = PERF_DATA_MODE_READ, | |
3552 | .force = trace->force, | |
f5fc1412 | 3553 | }; |
6810fc91 | 3554 | struct perf_session *session; |
32dcd021 | 3555 | struct evsel *evsel; |
6810fc91 DA |
3556 | int err = -1; |
3557 | ||
3558 | trace->tool.sample = trace__process_sample; | |
3559 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 3560 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
3561 | trace->tool.comm = perf_event__process_comm; |
3562 | trace->tool.exit = perf_event__process_exit; | |
3563 | trace->tool.fork = perf_event__process_fork; | |
3564 | trace->tool.attr = perf_event__process_attr; | |
f3b3614a | 3565 | trace->tool.tracing_data = perf_event__process_tracing_data; |
6810fc91 | 3566 | trace->tool.build_id = perf_event__process_build_id; |
f3b3614a | 3567 | trace->tool.namespaces = perf_event__process_namespaces; |
6810fc91 | 3568 | |
0a8cb85c | 3569 | trace->tool.ordered_events = true; |
6810fc91 DA |
3570 | trace->tool.ordering_requires_timestamps = true; |
3571 | ||
3572 | /* add tid to output */ | |
3573 | trace->multiple_threads = true; | |
3574 | ||
8ceb41d7 | 3575 | session = perf_session__new(&data, false, &trace->tool); |
6810fc91 | 3576 | if (session == NULL) |
52e02834 | 3577 | return -1; |
6810fc91 | 3578 | |
aa07df6e DA |
3579 | if (trace->opts.target.pid) |
3580 | symbol_conf.pid_list_str = strdup(trace->opts.target.pid); | |
3581 | ||
3582 | if (trace->opts.target.tid) | |
3583 | symbol_conf.tid_list_str = strdup(trace->opts.target.tid); | |
3584 | ||
0a7e6d1b | 3585 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
3586 | goto out; |
3587 | ||
8fb598e5 DA |
3588 | trace->host = &session->machines.host; |
3589 | ||
6810fc91 DA |
3590 | err = perf_session__set_tracepoints_handlers(session, handlers); |
3591 | if (err) | |
3592 | goto out; | |
3593 | ||
003824e8 NK |
3594 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, |
3595 | "raw_syscalls:sys_enter"); | |
9aca7f17 DA |
3596 | /* older kernels have syscalls tp versus raw_syscalls */ |
3597 | if (evsel == NULL) | |
3598 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3599 | "syscalls:sys_enter"); | |
003824e8 | 3600 | |
e281a960 | 3601 | if (evsel && |
63f11c80 | 3602 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_enter) < 0 || |
e281a960 | 3603 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { |
003824e8 NK |
3604 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
3605 | goto out; | |
3606 | } | |
3607 | ||
3608 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3609 | "raw_syscalls:sys_exit"); | |
9aca7f17 DA |
3610 | if (evsel == NULL) |
3611 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
3612 | "syscalls:sys_exit"); | |
e281a960 | 3613 | if (evsel && |
63f11c80 | 3614 | (perf_evsel__init_raw_syscall_tp(evsel, trace__sys_exit) < 0 || |
e281a960 | 3615 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { |
003824e8 | 3616 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
3617 | goto out; |
3618 | } | |
3619 | ||
e5cadb93 | 3620 | evlist__for_each_entry(session->evlist, evsel) { |
1e28fe0a SF |
3621 | if (evsel->attr.type == PERF_TYPE_SOFTWARE && |
3622 | (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
3623 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
3624 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
3625 | evsel->handler = trace__pgfault; | |
3626 | } | |
3627 | ||
6810fc91 DA |
3628 | setup_pager(); |
3629 | ||
b7b61cbe | 3630 | err = perf_session__process_events(session); |
6810fc91 DA |
3631 | if (err) |
3632 | pr_err("Failed to process events, error %d", err); | |
3633 | ||
bf2575c1 DA |
3634 | else if (trace->summary) |
3635 | trace__fprintf_thread_summary(trace, trace->output); | |
3636 | ||
6810fc91 DA |
3637 | out: |
3638 | perf_session__delete(session); | |
3639 | ||
3640 | return err; | |
3641 | } | |
3642 | ||
1302d88e ACM |
3643 | static size_t trace__fprintf_threads_header(FILE *fp) |
3644 | { | |
3645 | size_t printed; | |
3646 | ||
99ff7150 | 3647 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
3648 | |
3649 | return printed; | |
3650 | } | |
3651 | ||
b535d523 ACM |
3652 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
3653 | struct stats *stats; | |
3654 | double msecs; | |
3655 | int syscall; | |
3656 | ) | |
3657 | { | |
3658 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
3659 | struct stats *stats = source->priv; | |
3660 | ||
3661 | entry->syscall = source->i; | |
3662 | entry->stats = stats; | |
3663 | entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0; | |
3664 | } | |
3665 | ||
bf2575c1 DA |
3666 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
3667 | struct trace *trace, FILE *fp) | |
3668 | { | |
bf2575c1 DA |
3669 | size_t printed = 0; |
3670 | struct syscall *sc; | |
b535d523 ACM |
3671 | struct rb_node *nd; |
3672 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 3673 | |
b535d523 | 3674 | if (syscall_stats == NULL) |
bf2575c1 DA |
3675 | return 0; |
3676 | ||
3677 | printed += fprintf(fp, "\n"); | |
3678 | ||
834fd46d MW |
3679 | printed += fprintf(fp, " syscall calls total min avg max stddev\n"); |
3680 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
3681 | printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n"); | |
99ff7150 | 3682 | |
98a91837 | 3683 | resort_rb__for_each_entry(nd, syscall_stats) { |
b535d523 | 3684 | struct stats *stats = syscall_stats_entry->stats; |
bf2575c1 DA |
3685 | if (stats) { |
3686 | double min = (double)(stats->min) / NSEC_PER_MSEC; | |
3687 | double max = (double)(stats->max) / NSEC_PER_MSEC; | |
3688 | double avg = avg_stats(stats); | |
3689 | double pct; | |
3690 | u64 n = (u64) stats->n; | |
3691 | ||
3692 | pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; | |
3693 | avg /= NSEC_PER_MSEC; | |
3694 | ||
b535d523 | 3695 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 3696 | printed += fprintf(fp, " %-15s", sc->name); |
834fd46d | 3697 | printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f", |
b535d523 | 3698 | n, syscall_stats_entry->msecs, min, avg); |
27a778b5 | 3699 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
bf2575c1 | 3700 | } |
bf2575c1 DA |
3701 | } |
3702 | ||
b535d523 | 3703 | resort_rb__delete(syscall_stats); |
bf2575c1 | 3704 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
3705 | |
3706 | return printed; | |
3707 | } | |
3708 | ||
96c14451 | 3709 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 3710 | { |
96c14451 | 3711 | size_t printed = 0; |
89dceb22 | 3712 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
3713 | double ratio; |
3714 | ||
3715 | if (ttrace == NULL) | |
3716 | return 0; | |
3717 | ||
3718 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
3719 | ||
15e65c69 | 3720 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); |
99ff7150 | 3721 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 3722 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
3723 | if (ttrace->pfmaj) |
3724 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
3725 | if (ttrace->pfmin) | |
3726 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
3727 | if (trace->sched) |
3728 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
3729 | else if (fputc('\n', fp) != EOF) | |
3730 | ++printed; | |
3731 | ||
bf2575c1 | 3732 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 3733 | |
96c14451 ACM |
3734 | return printed; |
3735 | } | |
896cbb56 | 3736 | |
96c14451 ACM |
3737 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
3738 | { | |
3739 | return ttrace ? ttrace->nr_events : 0; | |
3740 | } | |
3741 | ||
3742 | DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)), | |
3743 | struct thread *thread; | |
3744 | ) | |
3745 | { | |
3746 | entry->thread = rb_entry(nd, struct thread, rb_node); | |
896cbb56 DA |
3747 | } |
3748 | ||
1302d88e ACM |
3749 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
3750 | { | |
96c14451 ACM |
3751 | size_t printed = trace__fprintf_threads_header(fp); |
3752 | struct rb_node *nd; | |
91e467bc | 3753 | int i; |
1302d88e | 3754 | |
91e467bc KL |
3755 | for (i = 0; i < THREADS__TABLE_SIZE; i++) { |
3756 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i); | |
96c14451 | 3757 | |
91e467bc KL |
3758 | if (threads == NULL) { |
3759 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
3760 | return 0; | |
3761 | } | |
896cbb56 | 3762 | |
91e467bc KL |
3763 | resort_rb__for_each_entry(nd, threads) |
3764 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); | |
96c14451 | 3765 | |
91e467bc KL |
3766 | resort_rb__delete(threads); |
3767 | } | |
96c14451 | 3768 | return printed; |
1302d88e ACM |
3769 | } |
3770 | ||
ae9ed035 ACM |
3771 | static int trace__set_duration(const struct option *opt, const char *str, |
3772 | int unset __maybe_unused) | |
3773 | { | |
3774 | struct trace *trace = opt->value; | |
3775 | ||
3776 | trace->duration_filter = atof(str); | |
3777 | return 0; | |
3778 | } | |
3779 | ||
6a0b3aba ACM |
3780 | static int trace__set_filter_pids_from_option(const struct option *opt, const char *str, |
3781 | int unset __maybe_unused) | |
f078c385 ACM |
3782 | { |
3783 | int ret = -1; | |
3784 | size_t i; | |
3785 | struct trace *trace = opt->value; | |
3786 | /* | |
3787 | * FIXME: introduce a intarray class, plain parse csv and create a | |
3788 | * { int nr, int entries[] } struct... | |
3789 | */ | |
3790 | struct intlist *list = intlist__new(str); | |
3791 | ||
3792 | if (list == NULL) | |
3793 | return -1; | |
3794 | ||
3795 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
3796 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
3797 | ||
3798 | if (trace->filter_pids.entries == NULL) | |
3799 | goto out; | |
3800 | ||
3801 | trace->filter_pids.entries[0] = getpid(); | |
3802 | ||
3803 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
3804 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
3805 | ||
3806 | intlist__delete(list); | |
3807 | ret = 0; | |
3808 | out: | |
3809 | return ret; | |
3810 | } | |
3811 | ||
c24ff998 ACM |
3812 | static int trace__open_output(struct trace *trace, const char *filename) |
3813 | { | |
3814 | struct stat st; | |
3815 | ||
3816 | if (!stat(filename, &st) && st.st_size) { | |
3817 | char oldname[PATH_MAX]; | |
3818 | ||
3819 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
3820 | unlink(oldname); | |
3821 | rename(filename, oldname); | |
3822 | } | |
3823 | ||
3824 | trace->output = fopen(filename, "w"); | |
3825 | ||
3826 | return trace->output == NULL ? -errno : 0; | |
3827 | } | |
3828 | ||
598d02c5 SF |
3829 | static int parse_pagefaults(const struct option *opt, const char *str, |
3830 | int unset __maybe_unused) | |
3831 | { | |
3832 | int *trace_pgfaults = opt->value; | |
3833 | ||
3834 | if (strcmp(str, "all") == 0) | |
3835 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
3836 | else if (strcmp(str, "maj") == 0) | |
3837 | *trace_pgfaults |= TRACE_PFMAJ; | |
3838 | else if (strcmp(str, "min") == 0) | |
3839 | *trace_pgfaults |= TRACE_PFMIN; | |
3840 | else | |
3841 | return -1; | |
3842 | ||
3843 | return 0; | |
3844 | } | |
3845 | ||
14a052df ACM |
3846 | static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) |
3847 | { | |
32dcd021 | 3848 | struct evsel *evsel; |
14a052df | 3849 | |
e5cadb93 | 3850 | evlist__for_each_entry(evlist, evsel) |
14a052df ACM |
3851 | evsel->handler = handler; |
3852 | } | |
3853 | ||
d32855fa ACM |
3854 | static int evlist__set_syscall_tp_fields(struct perf_evlist *evlist) |
3855 | { | |
32dcd021 | 3856 | struct evsel *evsel; |
d32855fa ACM |
3857 | |
3858 | evlist__for_each_entry(evlist, evsel) { | |
3859 | if (evsel->priv || !evsel->tp_format) | |
3860 | continue; | |
3861 | ||
3862 | if (strcmp(evsel->tp_format->system, "syscalls")) | |
3863 | continue; | |
3864 | ||
3865 | if (perf_evsel__init_syscall_tp(evsel)) | |
3866 | return -1; | |
3867 | ||
3868 | if (!strncmp(evsel->tp_format->name, "sys_enter_", 10)) { | |
3869 | struct syscall_tp *sc = evsel->priv; | |
3870 | ||
3871 | if (__tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64))) | |
3872 | return -1; | |
3873 | } else if (!strncmp(evsel->tp_format->name, "sys_exit_", 9)) { | |
3874 | struct syscall_tp *sc = evsel->priv; | |
3875 | ||
3876 | if (__tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap)) | |
3877 | return -1; | |
3878 | } | |
3879 | } | |
3880 | ||
3881 | return 0; | |
3882 | } | |
3883 | ||
017037ff ACM |
3884 | /* |
3885 | * XXX: Hackish, just splitting the combined -e+--event (syscalls | |
3886 | * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use | |
3887 | * existing facilities unchanged (trace->ev_qualifier + parse_options()). | |
3888 | * | |
3889 | * It'd be better to introduce a parse_options() variant that would return a | |
3890 | * list with the terms it didn't match to an event... | |
3891 | */ | |
3892 | static int trace__parse_events_option(const struct option *opt, const char *str, | |
3893 | int unset __maybe_unused) | |
3894 | { | |
3895 | struct trace *trace = (struct trace *)opt->value; | |
3896 | const char *s = str; | |
3897 | char *sep = NULL, *lists[2] = { NULL, NULL, }; | |
27702bcf | 3898 | int len = strlen(str) + 1, err = -1, list, idx; |
017037ff ACM |
3899 | char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); |
3900 | char group_name[PATH_MAX]; | |
f932184e | 3901 | struct syscall_fmt *fmt; |
017037ff ACM |
3902 | |
3903 | if (strace_groups_dir == NULL) | |
3904 | return -1; | |
3905 | ||
3906 | if (*s == '!') { | |
3907 | ++s; | |
3908 | trace->not_ev_qualifier = true; | |
3909 | } | |
3910 | ||
3911 | while (1) { | |
3912 | if ((sep = strchr(s, ',')) != NULL) | |
3913 | *sep = '\0'; | |
3914 | ||
3915 | list = 0; | |
27702bcf ACM |
3916 | if (syscalltbl__id(trace->sctbl, s) >= 0 || |
3917 | syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) { | |
017037ff | 3918 | list = 1; |
f932184e ACM |
3919 | goto do_concat; |
3920 | } | |
3921 | ||
3922 | fmt = syscall_fmt__find_by_alias(s); | |
3923 | if (fmt != NULL) { | |
3924 | list = 1; | |
3925 | s = fmt->name; | |
017037ff ACM |
3926 | } else { |
3927 | path__join(group_name, sizeof(group_name), strace_groups_dir, s); | |
3928 | if (access(group_name, R_OK) == 0) | |
3929 | list = 1; | |
3930 | } | |
f932184e | 3931 | do_concat: |
017037ff ACM |
3932 | if (lists[list]) { |
3933 | sprintf(lists[list] + strlen(lists[list]), ",%s", s); | |
3934 | } else { | |
3935 | lists[list] = malloc(len); | |
3936 | if (lists[list] == NULL) | |
3937 | goto out; | |
3938 | strcpy(lists[list], s); | |
3939 | } | |
3940 | ||
3941 | if (!sep) | |
3942 | break; | |
3943 | ||
3944 | *sep = ','; | |
3945 | s = sep + 1; | |
3946 | } | |
3947 | ||
3948 | if (lists[1] != NULL) { | |
3949 | struct strlist_config slist_config = { | |
3950 | .dirname = strace_groups_dir, | |
3951 | }; | |
3952 | ||
3953 | trace->ev_qualifier = strlist__new(lists[1], &slist_config); | |
3954 | if (trace->ev_qualifier == NULL) { | |
3955 | fputs("Not enough memory to parse event qualifier", trace->output); | |
3956 | goto out; | |
3957 | } | |
3958 | ||
3959 | if (trace__validate_ev_qualifier(trace)) | |
3960 | goto out; | |
b912885a | 3961 | trace->trace_syscalls = true; |
017037ff ACM |
3962 | } |
3963 | ||
3964 | err = 0; | |
3965 | ||
3966 | if (lists[0]) { | |
3967 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", | |
3968 | "event selector. use 'perf list' to list available events", | |
3969 | parse_events_option); | |
3970 | err = parse_events_option(&o, lists[0], 0); | |
3971 | } | |
3972 | out: | |
3973 | if (sep) | |
3974 | *sep = ','; | |
3975 | ||
3976 | return err; | |
3977 | } | |
3978 | ||
9ea42ba4 ACM |
3979 | static int trace__parse_cgroups(const struct option *opt, const char *str, int unset) |
3980 | { | |
3981 | struct trace *trace = opt->value; | |
3982 | ||
3983 | if (!list_empty(&trace->evlist->entries)) | |
3984 | return parse_cgroups(opt, str, unset); | |
3985 | ||
3986 | trace->cgroup = evlist__findnew_cgroup(trace->evlist, str); | |
3987 | ||
3988 | return 0; | |
3989 | } | |
3990 | ||
5ca0b7f5 | 3991 | static struct bpf_map *trace__find_bpf_map_by_name(struct trace *trace, const char *name) |
744fafc7 | 3992 | { |
5ca0b7f5 ACM |
3993 | if (trace->bpf_obj == NULL) |
3994 | return NULL; | |
744fafc7 | 3995 | |
5ca0b7f5 | 3996 | return bpf_object__find_map_by_name(trace->bpf_obj, name); |
744fafc7 ACM |
3997 | } |
3998 | ||
3999 | static void trace__set_bpf_map_filtered_pids(struct trace *trace) | |
4000 | { | |
5ca0b7f5 | 4001 | trace->filter_pids.map = trace__find_bpf_map_by_name(trace, "pids_filtered"); |
744fafc7 ACM |
4002 | } |
4003 | ||
b27b38ed ACM |
4004 | static void trace__set_bpf_map_syscalls(struct trace *trace) |
4005 | { | |
5ca0b7f5 | 4006 | trace->syscalls.map = trace__find_bpf_map_by_name(trace, "syscalls"); |
3803a229 ACM |
4007 | trace->syscalls.prog_array.sys_enter = trace__find_bpf_map_by_name(trace, "syscalls_sys_enter"); |
4008 | trace->syscalls.prog_array.sys_exit = trace__find_bpf_map_by_name(trace, "syscalls_sys_exit"); | |
b27b38ed ACM |
4009 | } |
4010 | ||
ac96287c ACM |
4011 | static int trace__config(const char *var, const char *value, void *arg) |
4012 | { | |
e7c634fc | 4013 | struct trace *trace = arg; |
ac96287c ACM |
4014 | int err = 0; |
4015 | ||
4016 | if (!strcmp(var, "trace.add_events")) { | |
ac96287c ACM |
4017 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", |
4018 | "event selector. use 'perf list' to list available events", | |
4019 | parse_events_option); | |
012749ca LY |
4020 | /* |
4021 | * We can't propagate parse_event_option() return, as it is 1 | |
4022 | * for failure while perf_config() expects -1. | |
4023 | */ | |
4024 | if (parse_events_option(&o, value, 0)) | |
4025 | err = -1; | |
b036146f ACM |
4026 | } else if (!strcmp(var, "trace.show_timestamp")) { |
4027 | trace->show_tstamp = perf_config_bool(var, value); | |
42e4a52d ACM |
4028 | } else if (!strcmp(var, "trace.show_duration")) { |
4029 | trace->show_duration = perf_config_bool(var, value); | |
9d6dc178 ACM |
4030 | } else if (!strcmp(var, "trace.show_arg_names")) { |
4031 | trace->show_arg_names = perf_config_bool(var, value); | |
4032 | if (!trace->show_arg_names) | |
4033 | trace->show_zeros = true; | |
e7c634fc | 4034 | } else if (!strcmp(var, "trace.show_zeros")) { |
9d6dc178 ACM |
4035 | bool new_show_zeros = perf_config_bool(var, value); |
4036 | if (!trace->show_arg_names && !new_show_zeros) { | |
4037 | pr_warning("trace.show_zeros has to be set when trace.show_arg_names=no\n"); | |
4038 | goto out; | |
4039 | } | |
4040 | trace->show_zeros = new_show_zeros; | |
c65c83ff ACM |
4041 | } else if (!strcmp(var, "trace.show_prefix")) { |
4042 | trace->show_string_prefix = perf_config_bool(var, value); | |
d32de87e ACM |
4043 | } else if (!strcmp(var, "trace.no_inherit")) { |
4044 | trace->opts.no_inherit = perf_config_bool(var, value); | |
9ed45d59 ACM |
4045 | } else if (!strcmp(var, "trace.args_alignment")) { |
4046 | int args_alignment = 0; | |
4047 | if (perf_config_int(&args_alignment, var, value) == 0) | |
4048 | trace->args_alignment = args_alignment; | |
ac96287c | 4049 | } |
9d6dc178 | 4050 | out: |
ac96287c ACM |
4051 | return err; |
4052 | } | |
4053 | ||
b0ad8ea6 | 4054 | int cmd_trace(int argc, const char **argv) |
514f1c67 | 4055 | { |
6fdd9cb7 | 4056 | const char *trace_usage[] = { |
f15eb531 NK |
4057 | "perf trace [<options>] [<command>]", |
4058 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
4059 | "perf trace record [<options>] [<command>]", |
4060 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
4061 | NULL |
4062 | }; | |
4063 | struct trace trace = { | |
514f1c67 ACM |
4064 | .opts = { |
4065 | .target = { | |
4066 | .uid = UINT_MAX, | |
4067 | .uses_mmap = true, | |
4068 | }, | |
4069 | .user_freq = UINT_MAX, | |
4070 | .user_interval = ULLONG_MAX, | |
509051ea | 4071 | .no_buffering = true, |
38d5447d | 4072 | .mmap_pages = UINT_MAX, |
514f1c67 | 4073 | }, |
007d66a0 | 4074 | .output = stderr, |
50c95cbd | 4075 | .show_comm = true, |
b036146f | 4076 | .show_tstamp = true, |
42e4a52d | 4077 | .show_duration = true, |
9d6dc178 | 4078 | .show_arg_names = true, |
9ed45d59 | 4079 | .args_alignment = 70, |
b912885a | 4080 | .trace_syscalls = false, |
44621819 | 4081 | .kernel_syscallchains = false, |
05614993 | 4082 | .max_stack = UINT_MAX, |
5067a8cd | 4083 | .max_events = ULONG_MAX, |
514f1c67 | 4084 | }; |
ff7a4f98 | 4085 | const char *map_dump_str = NULL; |
c24ff998 | 4086 | const char *output_name = NULL; |
514f1c67 | 4087 | const struct option trace_options[] = { |
017037ff ACM |
4088 | OPT_CALLBACK('e', "event", &trace, "event", |
4089 | "event/syscall selector. use 'perf list' to list available events", | |
4090 | trace__parse_events_option), | |
50c95cbd ACM |
4091 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
4092 | "show the thread COMM next to its id"), | |
c522739d | 4093 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
017037ff ACM |
4094 | OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace", |
4095 | trace__parse_events_option), | |
c24ff998 | 4096 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 4097 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
4098 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
4099 | "trace events on existing process id"), | |
ac9be8ee | 4100 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 4101 | "trace events on existing thread id"), |
fa0e4ffe | 4102 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
6a0b3aba | 4103 | "pids to filter (by the kernel)", trace__set_filter_pids_from_option), |
ac9be8ee | 4104 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 4105 | "system-wide collection from all CPUs"), |
ac9be8ee | 4106 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 4107 | "list of cpus to monitor"), |
6810fc91 | 4108 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 4109 | "child tasks do not inherit counters"), |
994a1f78 JO |
4110 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
4111 | "number of mmap data pages", | |
4112 | perf_evlist__parse_mmap_pages), | |
ac9be8ee | 4113 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 4114 | "user to profile"), |
ae9ed035 ACM |
4115 | OPT_CALLBACK(0, "duration", &trace, "float", |
4116 | "show only events with duration > N.M ms", | |
4117 | trace__set_duration), | |
ff7a4f98 ACM |
4118 | #ifdef HAVE_LIBBPF_SUPPORT |
4119 | OPT_STRING(0, "map-dump", &map_dump_str, "BPF map", "BPF map to periodically dump"), | |
4120 | #endif | |
1302d88e | 4121 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 4122 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
4123 | OPT_BOOLEAN('T', "time", &trace.full_time, |
4124 | "Show full timestamp, not time relative to first start"), | |
0a6545bd ACM |
4125 | OPT_BOOLEAN(0, "failure", &trace.failure_only, |
4126 | "Show only syscalls that failed"), | |
fd2eabaf DA |
4127 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
4128 | "Show only syscall summary with statistics"), | |
4129 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
4130 | "Show all syscalls and summary with statistics"), | |
598d02c5 SF |
4131 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
4132 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 4133 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 4134 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
4135 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
4136 | "record_mode[,record_size]", record_callchain_help, | |
4137 | &record_parse_callchain_opt), | |
44621819 ACM |
4138 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
4139 | "Show the kernel callchains on the syscall exit path"), | |
5067a8cd ACM |
4140 | OPT_ULONG(0, "max-events", &trace.max_events, |
4141 | "Set the maximum number of events to print, exit after that is reached. "), | |
5cf9c84e ACM |
4142 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
4143 | "Set the minimum stack depth when parsing the callchain, " | |
4144 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
4145 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
4146 | "Set the maximum stack depth when parsing the callchain, " | |
4147 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 4148 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
a761a8d1 ACM |
4149 | OPT_BOOLEAN(0, "sort-events", &trace.sort_events, |
4150 | "Sort batch of events before processing, use if getting out of order events"), | |
591421e1 ACM |
4151 | OPT_BOOLEAN(0, "print-sample", &trace.print_sample, |
4152 | "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"), | |
3fcb10e4 | 4153 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 4154 | "per thread proc mmap processing timeout in ms"), |
9ea42ba4 ACM |
4155 | OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only", |
4156 | trace__parse_cgroups), | |
e36b7821 AB |
4157 | OPT_UINTEGER('D', "delay", &trace.opts.initial_delay, |
4158 | "ms to wait before starting measurement after program " | |
4159 | "start"), | |
514f1c67 ACM |
4160 | OPT_END() |
4161 | }; | |
ccd62a89 | 4162 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 4163 | bool mmap_pages_user_set = true; |
32dcd021 | 4164 | struct evsel *evsel; |
6fdd9cb7 | 4165 | const char * const trace_subcommands[] = { "record", NULL }; |
78e890ea | 4166 | int err = -1; |
32caf0d1 | 4167 | char bf[BUFSIZ]; |
514f1c67 | 4168 | |
4d08cb80 ACM |
4169 | signal(SIGSEGV, sighandler_dump_stack); |
4170 | signal(SIGFPE, sighandler_dump_stack); | |
4171 | ||
14a052df | 4172 | trace.evlist = perf_evlist__new(); |
fd0db102 | 4173 | trace.sctbl = syscalltbl__new(); |
14a052df | 4174 | |
fd0db102 | 4175 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 4176 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 4177 | err = -ENOMEM; |
14a052df ACM |
4178 | goto out; |
4179 | } | |
4180 | ||
c3e78a34 ACM |
4181 | /* |
4182 | * Parsing .perfconfig may entail creating a BPF event, that may need | |
4183 | * to create BPF maps, so bump RLIM_MEMLOCK as the default 64K setting | |
4184 | * is too small. This affects just this process, not touching the | |
4185 | * global setting. If it fails we'll get something in 'perf trace -v' | |
4186 | * to help diagnose the problem. | |
4187 | */ | |
4188 | rlimit__bump_memlock(); | |
4189 | ||
ac96287c ACM |
4190 | err = perf_config(trace__config, &trace); |
4191 | if (err) | |
4192 | goto out; | |
4193 | ||
6fdd9cb7 YS |
4194 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
4195 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
fd2eabaf | 4196 | |
9ea42ba4 ACM |
4197 | if ((nr_cgroups || trace.cgroup) && !trace.opts.target.system_wide) { |
4198 | usage_with_options_msg(trace_usage, trace_options, | |
4199 | "cgroup monitoring only available in system-wide mode"); | |
4200 | } | |
4201 | ||
78e890ea ACM |
4202 | evsel = bpf__setup_output_event(trace.evlist, "__augmented_syscalls__"); |
4203 | if (IS_ERR(evsel)) { | |
4204 | bpf__strerror_setup_output_event(trace.evlist, PTR_ERR(evsel), bf, sizeof(bf)); | |
e0b6d2ef ACM |
4205 | pr_err("ERROR: Setup trace syscalls enter failed: %s\n", bf); |
4206 | goto out; | |
4207 | } | |
4208 | ||
744fafc7 | 4209 | if (evsel) { |
d3d1c4bd | 4210 | trace.syscalls.events.augmented = evsel; |
c8c80570 ACM |
4211 | |
4212 | evsel = perf_evlist__find_tracepoint_by_name(trace.evlist, "raw_syscalls:sys_enter"); | |
4213 | if (evsel == NULL) { | |
4214 | pr_err("ERROR: raw_syscalls:sys_enter not found in the augmented BPF object\n"); | |
4215 | goto out; | |
4216 | } | |
4217 | ||
4218 | if (evsel->bpf_obj == NULL) { | |
4219 | pr_err("ERROR: raw_syscalls:sys_enter not associated to a BPF object\n"); | |
4220 | goto out; | |
4221 | } | |
4222 | ||
4223 | trace.bpf_obj = evsel->bpf_obj; | |
4224 | ||
744fafc7 | 4225 | trace__set_bpf_map_filtered_pids(&trace); |
b27b38ed | 4226 | trace__set_bpf_map_syscalls(&trace); |
5834da7f | 4227 | trace.syscalls.unaugmented_prog = trace__find_bpf_program_by_title(&trace, "!raw_syscalls:unaugmented"); |
744fafc7 | 4228 | } |
d3d1c4bd | 4229 | |
d7888573 WN |
4230 | err = bpf__setup_stdout(trace.evlist); |
4231 | if (err) { | |
4232 | bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf)); | |
4233 | pr_err("ERROR: Setup BPF stdout failed: %s\n", bf); | |
4234 | goto out; | |
4235 | } | |
4236 | ||
59247e33 ACM |
4237 | err = -1; |
4238 | ||
ff7a4f98 | 4239 | if (map_dump_str) { |
5ca0b7f5 | 4240 | trace.dump.map = trace__find_bpf_map_by_name(&trace, map_dump_str); |
ff7a4f98 ACM |
4241 | if (trace.dump.map == NULL) { |
4242 | pr_err("ERROR: BPF map \"%s\" not found\n", map_dump_str); | |
4243 | goto out; | |
4244 | } | |
4245 | } | |
4246 | ||
598d02c5 SF |
4247 | if (trace.trace_pgfaults) { |
4248 | trace.opts.sample_address = true; | |
4249 | trace.opts.sample_time = true; | |
4250 | } | |
4251 | ||
f3e459d1 ACM |
4252 | if (trace.opts.mmap_pages == UINT_MAX) |
4253 | mmap_pages_user_set = false; | |
4254 | ||
05614993 | 4255 | if (trace.max_stack == UINT_MAX) { |
029c75e5 | 4256 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl__max_stack(); |
05614993 ACM |
4257 | max_stack_user_set = false; |
4258 | } | |
4259 | ||
4260 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
75d50117 | 4261 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled) { |
05614993 | 4262 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
75d50117 | 4263 | } |
05614993 ACM |
4264 | #endif |
4265 | ||
2ddd5c04 | 4266 | if (callchain_param.enabled) { |
f3e459d1 ACM |
4267 | if (!mmap_pages_user_set && geteuid() == 0) |
4268 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
4269 | ||
566a0885 | 4270 | symbol_conf.use_callchain = true; |
f3e459d1 | 4271 | } |
566a0885 | 4272 | |
d32855fa | 4273 | if (trace.evlist->nr_entries > 0) { |
14a052df | 4274 | evlist__set_evsel_handler(trace.evlist, trace__event_handler); |
d32855fa ACM |
4275 | if (evlist__set_syscall_tp_fields(trace.evlist)) { |
4276 | perror("failed to set syscalls:* tracepoint fields"); | |
4277 | goto out; | |
4278 | } | |
4279 | } | |
14a052df | 4280 | |
a761a8d1 ACM |
4281 | if (trace.sort_events) { |
4282 | ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace); | |
4283 | ordered_events__set_copy_on_queue(&trace.oe.data, true); | |
4284 | } | |
028713aa | 4285 | |
b1a9e253 ACM |
4286 | /* |
4287 | * If we are augmenting syscalls, then combine what we put in the | |
4288 | * __augmented_syscalls__ BPF map with what is in the | |
4289 | * syscalls:sys_exit_FOO tracepoints, i.e. just like we do without BPF, | |
4290 | * combining raw_syscalls:sys_enter with raw_syscalls:sys_exit. | |
4291 | * | |
4292 | * We'll switch to look at two BPF maps, one for sys_enter and the | |
4293 | * other for sys_exit when we start augmenting the sys_exit paths with | |
4294 | * buffers that are being copied from kernel to userspace, think 'read' | |
4295 | * syscall. | |
4296 | */ | |
4297 | if (trace.syscalls.events.augmented) { | |
b1a9e253 | 4298 | evlist__for_each_entry(trace.evlist, evsel) { |
cd26ea6d ACM |
4299 | bool raw_syscalls_sys_exit = strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_exit") == 0; |
4300 | ||
4301 | if (raw_syscalls_sys_exit) { | |
4302 | trace.raw_augmented_syscalls = true; | |
4303 | goto init_augmented_syscall_tp; | |
4304 | } | |
4305 | ||
1d59cb1b ACM |
4306 | if (trace.syscalls.events.augmented->priv == NULL && |
4307 | strstr(perf_evsel__name(evsel), "syscalls:sys_enter")) { | |
32dcd021 | 4308 | struct evsel *augmented = trace.syscalls.events.augmented; |
b9b6a2ea ACM |
4309 | if (perf_evsel__init_augmented_syscall_tp(augmented, evsel) || |
4310 | perf_evsel__init_augmented_syscall_tp_args(augmented)) | |
4311 | goto out; | |
b119970a ACM |
4312 | /* |
4313 | * Augmented is __augmented_syscalls__ BPF_OUTPUT event | |
4314 | * Above we made sure we can get from the payload the tp fields | |
4315 | * that we get from syscalls:sys_enter tracefs format file. | |
4316 | */ | |
b9b6a2ea | 4317 | augmented->handler = trace__sys_enter; |
b119970a ACM |
4318 | /* |
4319 | * Now we do the same for the *syscalls:sys_enter event so that | |
4320 | * if we handle it directly, i.e. if the BPF prog returns 0 so | |
4321 | * as not to filter it, then we'll handle it just like we would | |
4322 | * for the BPF_OUTPUT one: | |
4323 | */ | |
4324 | if (perf_evsel__init_augmented_syscall_tp(evsel, evsel) || | |
4325 | perf_evsel__init_augmented_syscall_tp_args(evsel)) | |
4326 | goto out; | |
4327 | evsel->handler = trace__sys_enter; | |
b9b6a2ea ACM |
4328 | } |
4329 | ||
cd26ea6d | 4330 | if (strstarts(perf_evsel__name(evsel), "syscalls:sys_exit_")) { |
b9b6a2ea | 4331 | struct syscall_tp *sc; |
cd26ea6d | 4332 | init_augmented_syscall_tp: |
b9b6a2ea ACM |
4333 | if (perf_evsel__init_augmented_syscall_tp(evsel, evsel)) |
4334 | goto out; | |
4335 | sc = evsel->priv; | |
4336 | /* | |
4337 | * For now with BPF raw_augmented we hook into | |
4338 | * raw_syscalls:sys_enter and there we get all | |
4339 | * 6 syscall args plus the tracepoint common | |
4340 | * fields and the syscall_nr (another long). | |
4341 | * So we check if that is the case and if so | |
4342 | * don't look after the sc->args_size but | |
4343 | * always after the full raw_syscalls:sys_enter | |
4344 | * payload, which is fixed. | |
4345 | * | |
4346 | * We'll revisit this later to pass | |
4347 | * s->args_size to the BPF augmenter (now | |
4348 | * tools/perf/examples/bpf/augmented_raw_syscalls.c, | |
4349 | * so that it copies only what we need for each | |
4350 | * syscall, like what happens when we use | |
4351 | * syscalls:sys_enter_NAME, so that we reduce | |
4352 | * the kernel/userspace traffic to just what is | |
4353 | * needed for each syscall. | |
4354 | */ | |
4355 | if (trace.raw_augmented_syscalls) | |
4356 | trace.raw_augmented_syscalls_args_size = (6 + 1) * sizeof(long) + sc->id.offset; | |
b1a9e253 ACM |
4357 | perf_evsel__init_augmented_syscall_tp_ret(evsel); |
4358 | evsel->handler = trace__sys_exit; | |
4359 | } | |
4360 | } | |
4361 | } | |
4362 | ||
1e28fe0a SF |
4363 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
4364 | return trace__record(&trace, argc-1, &argv[1]); | |
4365 | ||
4366 | /* summary_only implies summary option, but don't overwrite summary if set */ | |
4367 | if (trace.summary_only) | |
4368 | trace.summary = trace.summary_only; | |
4369 | ||
726f3234 ACM |
4370 | if (!trace.trace_syscalls && !trace.trace_pgfaults && |
4371 | trace.evlist->nr_entries == 0 /* Was --events used? */) { | |
b912885a | 4372 | trace.trace_syscalls = true; |
59247e33 ACM |
4373 | } |
4374 | ||
c24ff998 ACM |
4375 | if (output_name != NULL) { |
4376 | err = trace__open_output(&trace, output_name); | |
4377 | if (err < 0) { | |
4378 | perror("failed to create output file"); | |
4379 | goto out; | |
4380 | } | |
4381 | } | |
4382 | ||
602ad878 | 4383 | err = target__validate(&trace.opts.target); |
32caf0d1 | 4384 | if (err) { |
602ad878 | 4385 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
4386 | fprintf(trace.output, "%s", bf); |
4387 | goto out_close; | |
32caf0d1 NK |
4388 | } |
4389 | ||
602ad878 | 4390 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 4391 | if (err) { |
602ad878 | 4392 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
4393 | fprintf(trace.output, "%s", bf); |
4394 | goto out_close; | |
514f1c67 ACM |
4395 | } |
4396 | ||
602ad878 | 4397 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
4398 | trace.opts.target.system_wide = true; |
4399 | ||
6810fc91 DA |
4400 | if (input_name) |
4401 | err = trace__replay(&trace); | |
4402 | else | |
4403 | err = trace__run(&trace, argc, argv); | |
1302d88e | 4404 | |
c24ff998 ACM |
4405 | out_close: |
4406 | if (output_name != NULL) | |
4407 | fclose(trace.output); | |
4408 | out: | |
1302d88e | 4409 | return err; |
514f1c67 | 4410 | } |