Commit | Line | Data |
---|---|---|
a598bb5e ACM |
1 | /* |
2 | * builtin-trace.c | |
3 | * | |
4 | * Builtin 'trace' command: | |
5 | * | |
6 | * Display a continuously updated trace of any workload, CPU, specific PID, | |
7 | * system wide, etc. Default format is loosely strace like, but any other | |
8 | * event may be specified using --event. | |
9 | * | |
10 | * Copyright (C) 2012, 2013, 2014, 2015 Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> | |
11 | * | |
12 | * Initially based on the 'trace' prototype by Thomas Gleixner: | |
13 | * | |
14 | * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'") | |
a598bb5e ACM |
15 | */ |
16 | ||
aeb00b1a | 17 | #include "util/record.h" |
988bdb31 | 18 | #include <api/fs/tracing_path.h> |
d891f2b7 | 19 | #ifdef HAVE_LIBBPF_SUPPORT |
744fafc7 | 20 | #include <bpf/bpf.h> |
3d6dfae8 | 21 | #include <bpf/libbpf.h> |
5e6da6be IR |
22 | #ifdef HAVE_BPF_SKEL |
23 | #include "bpf_skel/augmented_raw_syscalls.skel.h" | |
24 | #endif | |
d891f2b7 | 25 | #endif |
ff7a4f98 | 26 | #include "util/bpf_map.h" |
c3e78a34 | 27 | #include "util/rlimit.h" |
514f1c67 | 28 | #include "builtin.h" |
9ea42ba4 | 29 | #include "util/cgroup.h" |
752fde44 | 30 | #include "util/color.h" |
ac96287c | 31 | #include "util/config.h" |
7c304ee0 | 32 | #include "util/debug.h" |
4a3cec84 | 33 | #include "util/dso.h" |
092bd3cd | 34 | #include "util/env.h" |
5ab8c689 | 35 | #include "util/event.h" |
ca125277 ACM |
36 | #include "util/evsel.h" |
37 | #include "util/evsel_fprintf.h" | |
ea49e01c | 38 | #include "util/synthetic-events.h" |
514f1c67 | 39 | #include "util/evlist.h" |
22ac4318 | 40 | #include "util/evswitch.h" |
e0fcfb08 | 41 | #include "util/mmap.h" |
8520a98d | 42 | #include <subcmd/pager.h> |
4b6ab94e | 43 | #include <subcmd/exec-cmd.h> |
752fde44 | 44 | #include "util/machine.h" |
1101f69a | 45 | #include "util/map.h" |
daecf9e0 | 46 | #include "util/symbol.h" |
9a3993d4 | 47 | #include "util/path.h" |
6810fc91 | 48 | #include "util/session.h" |
752fde44 | 49 | #include "util/thread.h" |
4b6ab94e | 50 | #include <subcmd/parse-options.h> |
2ae3a312 | 51 | #include "util/strlist.h" |
bdc89661 | 52 | #include "util/intlist.h" |
514f1c67 | 53 | #include "util/thread_map.h" |
bf2575c1 | 54 | #include "util/stat.h" |
4a3cec84 | 55 | #include "util/tool.h" |
2da39f1c | 56 | #include "util/util.h" |
fd5cead2 | 57 | #include "trace/beauty/beauty.h" |
97978b3e | 58 | #include "trace-event.h" |
9aca7f17 | 59 | #include "util/parse-events.h" |
9b7c7728 | 60 | #include "util/tracepoint.h" |
566a0885 | 61 | #include "callchain.h" |
fea01392 | 62 | #include "print_binary.h" |
a067558e | 63 | #include "string2.h" |
fd0db102 | 64 | #include "syscalltbl.h" |
96c14451 | 65 | #include "rb_resort.h" |
c1a604df | 66 | #include "../perf.h" |
514f1c67 | 67 | |
a43783ae | 68 | #include <errno.h> |
fd20e811 | 69 | #include <inttypes.h> |
4208735d | 70 | #include <poll.h> |
9607ad3a | 71 | #include <signal.h> |
514f1c67 | 72 | #include <stdlib.h> |
017037ff | 73 | #include <string.h> |
8dd2a131 | 74 | #include <linux/err.h> |
997bba8c | 75 | #include <linux/filter.h> |
877a7a11 | 76 | #include <linux/kernel.h> |
39878d49 | 77 | #include <linux/random.h> |
c6d4a494 | 78 | #include <linux/stringify.h> |
bd48c63e | 79 | #include <linux/time64.h> |
7f7c536f | 80 | #include <linux/zalloc.h> |
bafae98e | 81 | #include <fcntl.h> |
4bcc4cff | 82 | #include <sys/sysmacros.h> |
514f1c67 | 83 | |
3052ba56 | 84 | #include <linux/ctype.h> |
7728fa0c | 85 | #include <perf/mmap.h> |
3d689ed6 | 86 | |
378ef0f5 IR |
87 | #ifdef HAVE_LIBTRACEEVENT |
88 | #include <traceevent/event-parse.h> | |
89 | #endif | |
90 | ||
c188e7ac ACM |
91 | #ifndef O_CLOEXEC |
92 | # define O_CLOEXEC 02000000 | |
93 | #endif | |
94 | ||
83a51694 ACM |
95 | #ifndef F_LINUX_SPECIFIC_BASE |
96 | # define F_LINUX_SPECIFIC_BASE 1024 | |
97 | #endif | |
98 | ||
eadcab4c LY |
99 | #define RAW_SYSCALL_ARGS_NUM 6 |
100 | ||
3f41b778 ACM |
101 | /* |
102 | * strtoul: Go from a string to a value, i.e. for msr: MSR_FS_BASE to 0xc0000100 | |
103 | */ | |
888ca854 ACM |
104 | struct syscall_arg_fmt { |
105 | size_t (*scnprintf)(char *bf, size_t size, struct syscall_arg *arg); | |
3f41b778 | 106 | bool (*strtoul)(char *bf, size_t size, struct syscall_arg *arg, u64 *val); |
888ca854 ACM |
107 | unsigned long (*mask_val)(struct syscall_arg *arg, unsigned long val); |
108 | void *parm; | |
109 | const char *name; | |
9597945d | 110 | u16 nr_entries; // for arrays |
888ca854 ACM |
111 | bool show_zero; |
112 | }; | |
113 | ||
114 | struct syscall_fmt { | |
115 | const char *name; | |
116 | const char *alias; | |
117 | struct { | |
118 | const char *sys_enter, | |
119 | *sys_exit; | |
120 | } bpf_prog_name; | |
eadcab4c | 121 | struct syscall_arg_fmt arg[RAW_SYSCALL_ARGS_NUM]; |
888ca854 ACM |
122 | u8 nr_args; |
123 | bool errpid; | |
124 | bool timeout; | |
125 | bool hexret; | |
126 | }; | |
127 | ||
d1d438a3 ACM |
128 | struct trace { |
129 | struct perf_tool tool; | |
fd0db102 | 130 | struct syscalltbl *sctbl; |
d1d438a3 | 131 | struct { |
d1d438a3 ACM |
132 | struct syscall *table; |
133 | struct { | |
32dcd021 | 134 | struct evsel *sys_enter, |
5e6da6be IR |
135 | *sys_exit, |
136 | *bpf_output; | |
d1d438a3 ACM |
137 | } events; |
138 | } syscalls; | |
5e6da6be IR |
139 | #ifdef HAVE_BPF_SKEL |
140 | struct augmented_raw_syscalls_bpf *skel; | |
141 | #endif | |
d1d438a3 | 142 | struct record_opts opts; |
63503dba | 143 | struct evlist *evlist; |
d1d438a3 ACM |
144 | struct machine *host; |
145 | struct thread *current; | |
9ea42ba4 | 146 | struct cgroup *cgroup; |
d1d438a3 ACM |
147 | u64 base_time; |
148 | FILE *output; | |
149 | unsigned long nr_events; | |
5067a8cd ACM |
150 | unsigned long nr_events_printed; |
151 | unsigned long max_events; | |
22ac4318 | 152 | struct evswitch evswitch; |
d1d438a3 ACM |
153 | struct strlist *ev_qualifier; |
154 | struct { | |
155 | size_t nr; | |
156 | int *entries; | |
157 | } ev_qualifier_ids; | |
d1d438a3 ACM |
158 | struct { |
159 | size_t nr; | |
160 | pid_t *entries; | |
744fafc7 | 161 | struct bpf_map *map; |
d1d438a3 ACM |
162 | } filter_pids; |
163 | double duration_filter; | |
164 | double runtime_ms; | |
165 | struct { | |
166 | u64 vfs_getname, | |
167 | proc_getname; | |
168 | } stats; | |
c6d4a494 | 169 | unsigned int max_stack; |
5cf9c84e | 170 | unsigned int min_stack; |
b9b6a2ea | 171 | int raw_augmented_syscalls_args_size; |
cd26ea6d | 172 | bool raw_augmented_syscalls; |
79d725cd | 173 | bool fd_path_disabled; |
b9b6a2ea | 174 | bool sort_events; |
d1d438a3 ACM |
175 | bool not_ev_qualifier; |
176 | bool live; | |
177 | bool full_time; | |
178 | bool sched; | |
179 | bool multiple_threads; | |
180 | bool summary; | |
181 | bool summary_only; | |
b88b14db | 182 | bool errno_summary; |
0a6545bd | 183 | bool failure_only; |
d1d438a3 | 184 | bool show_comm; |
591421e1 | 185 | bool print_sample; |
d1d438a3 ACM |
186 | bool show_tool_stats; |
187 | bool trace_syscalls; | |
f11b2803 | 188 | bool libtraceevent_print; |
44621819 | 189 | bool kernel_syscallchains; |
9ed45d59 | 190 | s16 args_alignment; |
b036146f | 191 | bool show_tstamp; |
42e4a52d | 192 | bool show_duration; |
e7c634fc | 193 | bool show_zeros; |
9d6dc178 | 194 | bool show_arg_names; |
c65c83ff | 195 | bool show_string_prefix; |
d1d438a3 ACM |
196 | bool force; |
197 | bool vfs_getname; | |
198 | int trace_pgfaults; | |
7e035929 | 199 | char *perfconfig_events; |
028713aa JO |
200 | struct { |
201 | struct ordered_events data; | |
202 | u64 last; | |
203 | } oe; | |
d1d438a3 | 204 | }; |
a1c2552d | 205 | |
77170988 ACM |
206 | struct tp_field { |
207 | int offset; | |
208 | union { | |
209 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
210 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
211 | }; | |
212 | }; | |
213 | ||
214 | #define TP_UINT_FIELD(bits) \ | |
215 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
216 | { \ | |
55d43bca DA |
217 | u##bits value; \ |
218 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
219 | return value; \ | |
77170988 ACM |
220 | } |
221 | ||
222 | TP_UINT_FIELD(8); | |
223 | TP_UINT_FIELD(16); | |
224 | TP_UINT_FIELD(32); | |
225 | TP_UINT_FIELD(64); | |
226 | ||
227 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
228 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
229 | { \ | |
55d43bca DA |
230 | u##bits value; \ |
231 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
232 | return bswap_##bits(value);\ |
233 | } | |
234 | ||
235 | TP_UINT_FIELD__SWAPPED(16); | |
236 | TP_UINT_FIELD__SWAPPED(32); | |
237 | TP_UINT_FIELD__SWAPPED(64); | |
238 | ||
aa823f58 | 239 | static int __tp_field__init_uint(struct tp_field *field, int size, int offset, bool needs_swap) |
77170988 | 240 | { |
aa823f58 | 241 | field->offset = offset; |
77170988 | 242 | |
aa823f58 | 243 | switch (size) { |
77170988 ACM |
244 | case 1: |
245 | field->integer = tp_field__u8; | |
246 | break; | |
247 | case 2: | |
248 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
249 | break; | |
250 | case 4: | |
251 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
252 | break; | |
253 | case 8: | |
254 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
255 | break; | |
256 | default: | |
257 | return -1; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
2c92f982 | 263 | static int tp_field__init_uint(struct tp_field *field, struct tep_format_field *format_field, bool needs_swap) |
aa823f58 ACM |
264 | { |
265 | return __tp_field__init_uint(field, format_field->size, format_field->offset, needs_swap); | |
266 | } | |
267 | ||
77170988 ACM |
268 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) |
269 | { | |
270 | return sample->raw_data + field->offset; | |
271 | } | |
272 | ||
aa823f58 | 273 | static int __tp_field__init_ptr(struct tp_field *field, int offset) |
77170988 | 274 | { |
aa823f58 | 275 | field->offset = offset; |
77170988 ACM |
276 | field->pointer = tp_field__ptr; |
277 | return 0; | |
278 | } | |
279 | ||
2c92f982 | 280 | static int tp_field__init_ptr(struct tp_field *field, struct tep_format_field *format_field) |
aa823f58 ACM |
281 | { |
282 | return __tp_field__init_ptr(field, format_field->offset); | |
283 | } | |
284 | ||
77170988 ACM |
285 | struct syscall_tp { |
286 | struct tp_field id; | |
287 | union { | |
288 | struct tp_field args, ret; | |
289 | }; | |
290 | }; | |
291 | ||
2b00bb62 ACM |
292 | /* |
293 | * The evsel->priv as used by 'perf trace' | |
294 | * sc: for raw_syscalls:sys_{enter,exit} and syscalls:sys_{enter,exit}_SYSCALLNAME | |
295 | * fmt: for all the other tracepoints | |
296 | */ | |
297 | struct evsel_trace { | |
298 | struct syscall_tp sc; | |
299 | struct syscall_arg_fmt *fmt; | |
300 | }; | |
301 | ||
302 | static struct evsel_trace *evsel_trace__new(void) | |
303 | { | |
304 | return zalloc(sizeof(struct evsel_trace)); | |
305 | } | |
306 | ||
307 | static void evsel_trace__delete(struct evsel_trace *et) | |
308 | { | |
309 | if (et == NULL) | |
310 | return; | |
311 | ||
312 | zfree(&et->fmt); | |
313 | free(et); | |
314 | } | |
315 | ||
fecd9907 ACM |
316 | /* |
317 | * Used with raw_syscalls:sys_{enter,exit} and with the | |
318 | * syscalls:sys_{enter,exit}_SYSCALL tracepoints | |
319 | */ | |
320 | static inline struct syscall_tp *__evsel__syscall_tp(struct evsel *evsel) | |
321 | { | |
2b00bb62 | 322 | struct evsel_trace *et = evsel->priv; |
fecd9907 | 323 | |
2b00bb62 | 324 | return &et->sc; |
fecd9907 ACM |
325 | } |
326 | ||
8b913df5 ACM |
327 | static struct syscall_tp *evsel__syscall_tp(struct evsel *evsel) |
328 | { | |
329 | if (evsel->priv == NULL) { | |
2b00bb62 ACM |
330 | evsel->priv = evsel_trace__new(); |
331 | if (evsel->priv == NULL) | |
332 | return NULL; | |
8b913df5 ACM |
333 | } |
334 | ||
335 | return __evsel__syscall_tp(evsel); | |
336 | } | |
337 | ||
fecd9907 ACM |
338 | /* |
339 | * Used with all the other tracepoints. | |
340 | */ | |
341 | static inline struct syscall_arg_fmt *__evsel__syscall_arg_fmt(struct evsel *evsel) | |
342 | { | |
2b00bb62 | 343 | struct evsel_trace *et = evsel->priv; |
fecd9907 | 344 | |
2b00bb62 | 345 | return et->fmt; |
fecd9907 ACM |
346 | } |
347 | ||
8b913df5 ACM |
348 | static struct syscall_arg_fmt *evsel__syscall_arg_fmt(struct evsel *evsel) |
349 | { | |
2b00bb62 ACM |
350 | struct evsel_trace *et = evsel->priv; |
351 | ||
8b913df5 | 352 | if (evsel->priv == NULL) { |
2b00bb62 ACM |
353 | et = evsel->priv = evsel_trace__new(); |
354 | ||
355 | if (et == NULL) | |
356 | return NULL; | |
357 | } | |
358 | ||
359 | if (et->fmt == NULL) { | |
360 | et->fmt = calloc(evsel->tp_format->format.nr_fields, sizeof(struct syscall_arg_fmt)); | |
361 | if (et->fmt == NULL) | |
362 | goto out_delete; | |
8b913df5 ACM |
363 | } |
364 | ||
365 | return __evsel__syscall_arg_fmt(evsel); | |
2b00bb62 ACM |
366 | |
367 | out_delete: | |
368 | evsel_trace__delete(evsel->priv); | |
369 | evsel->priv = NULL; | |
370 | return NULL; | |
8b913df5 ACM |
371 | } |
372 | ||
794bca26 | 373 | static int evsel__init_tp_uint_field(struct evsel *evsel, struct tp_field *field, const char *name) |
77170988 | 374 | { |
efc0cdc9 | 375 | struct tep_format_field *format_field = evsel__field(evsel, name); |
77170988 ACM |
376 | |
377 | if (format_field == NULL) | |
378 | return -1; | |
379 | ||
380 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
381 | } | |
382 | ||
383 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
fecd9907 | 384 | ({ struct syscall_tp *sc = __evsel__syscall_tp(evsel);\ |
794bca26 | 385 | evsel__init_tp_uint_field(evsel, &sc->name, #name); }) |
77170988 | 386 | |
794bca26 | 387 | static int evsel__init_tp_ptr_field(struct evsel *evsel, struct tp_field *field, const char *name) |
77170988 | 388 | { |
efc0cdc9 | 389 | struct tep_format_field *format_field = evsel__field(evsel, name); |
77170988 ACM |
390 | |
391 | if (format_field == NULL) | |
392 | return -1; | |
393 | ||
394 | return tp_field__init_ptr(field, format_field); | |
395 | } | |
396 | ||
397 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
fecd9907 | 398 | ({ struct syscall_tp *sc = __evsel__syscall_tp(evsel);\ |
794bca26 | 399 | evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) |
77170988 | 400 | |
5eb2dd2a | 401 | static void evsel__delete_priv(struct evsel *evsel) |
77170988 | 402 | { |
04662523 | 403 | zfree(&evsel->priv); |
5eb2dd2a | 404 | evsel__delete(evsel); |
77170988 ACM |
405 | } |
406 | ||
794bca26 | 407 | static int evsel__init_syscall_tp(struct evsel *evsel) |
d32855fa | 408 | { |
8b913df5 | 409 | struct syscall_tp *sc = evsel__syscall_tp(evsel); |
d32855fa | 410 | |
8b913df5 | 411 | if (sc != NULL) { |
794bca26 ACM |
412 | if (evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr") && |
413 | evsel__init_tp_uint_field(evsel, &sc->id, "nr")) | |
8b913df5 | 414 | return -ENOENT; |
5e6da6be | 415 | |
d32855fa ACM |
416 | return 0; |
417 | } | |
418 | ||
419 | return -ENOMEM; | |
d32855fa ACM |
420 | } |
421 | ||
794bca26 | 422 | static int evsel__init_augmented_syscall_tp(struct evsel *evsel, struct evsel *tp) |
d3d1c4bd | 423 | { |
8b913df5 | 424 | struct syscall_tp *sc = evsel__syscall_tp(evsel); |
d3d1c4bd | 425 | |
8b913df5 | 426 | if (sc != NULL) { |
efc0cdc9 | 427 | struct tep_format_field *syscall_id = evsel__field(tp, "id"); |
b9b6a2ea | 428 | if (syscall_id == NULL) |
efc0cdc9 | 429 | syscall_id = evsel__field(tp, "__syscall_nr"); |
8b913df5 ACM |
430 | if (syscall_id == NULL || |
431 | __tp_field__init_uint(&sc->id, syscall_id->size, syscall_id->offset, evsel->needs_swap)) | |
432 | return -EINVAL; | |
d3d1c4bd ACM |
433 | |
434 | return 0; | |
435 | } | |
436 | ||
437 | return -ENOMEM; | |
d3d1c4bd ACM |
438 | } |
439 | ||
794bca26 | 440 | static int evsel__init_augmented_syscall_tp_args(struct evsel *evsel) |
d3d1c4bd | 441 | { |
fecd9907 | 442 | struct syscall_tp *sc = __evsel__syscall_tp(evsel); |
d3d1c4bd ACM |
443 | |
444 | return __tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64)); | |
445 | } | |
446 | ||
794bca26 | 447 | static int evsel__init_augmented_syscall_tp_ret(struct evsel *evsel) |
b1a9e253 | 448 | { |
fecd9907 | 449 | struct syscall_tp *sc = __evsel__syscall_tp(evsel); |
b1a9e253 ACM |
450 | |
451 | return __tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap); | |
452 | } | |
453 | ||
794bca26 | 454 | static int evsel__init_raw_syscall_tp(struct evsel *evsel, void *handler) |
96695d44 | 455 | { |
8b913df5 | 456 | if (evsel__syscall_tp(evsel) != NULL) { |
96695d44 | 457 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) |
8b913df5 | 458 | return -ENOENT; |
96695d44 NK |
459 | |
460 | evsel->handler = handler; | |
461 | return 0; | |
462 | } | |
463 | ||
464 | return -ENOMEM; | |
96695d44 NK |
465 | } |
466 | ||
32dcd021 | 467 | static struct evsel *perf_evsel__raw_syscall_newtp(const char *direction, void *handler) |
77170988 | 468 | { |
8f6725a2 | 469 | struct evsel *evsel = evsel__newtp("raw_syscalls", direction); |
77170988 | 470 | |
9aca7f17 | 471 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 472 | if (IS_ERR(evsel)) |
8f6725a2 | 473 | evsel = evsel__newtp("syscalls", direction); |
9aca7f17 | 474 | |
8dd2a131 JO |
475 | if (IS_ERR(evsel)) |
476 | return NULL; | |
477 | ||
794bca26 | 478 | if (evsel__init_raw_syscall_tp(evsel, handler)) |
8dd2a131 | 479 | goto out_delete; |
77170988 ACM |
480 | |
481 | return evsel; | |
482 | ||
483 | out_delete: | |
5eb2dd2a | 484 | evsel__delete_priv(evsel); |
77170988 ACM |
485 | return NULL; |
486 | } | |
487 | ||
488 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
fecd9907 | 489 | ({ struct syscall_tp *fields = __evsel__syscall_tp(evsel); \ |
77170988 ACM |
490 | fields->name.integer(&fields->name, sample); }) |
491 | ||
492 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
fecd9907 | 493 | ({ struct syscall_tp *fields = __evsel__syscall_tp(evsel); \ |
77170988 ACM |
494 | fields->name.pointer(&fields->name, sample); }) |
495 | ||
97c2a780 ACM |
496 | size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val) |
497 | { | |
498 | int idx = val - sa->offset; | |
499 | ||
500 | if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) { | |
501 | size_t printed = scnprintf(bf, size, intfmt, val); | |
502 | if (show_suffix) | |
503 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix); | |
504 | return printed; | |
505 | } | |
506 | ||
507 | return scnprintf(bf, size, "%s%s", sa->entries[idx], show_suffix ? sa->prefix : ""); | |
508 | } | |
509 | ||
c65c83ff | 510 | size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
0ae79636 ACM |
511 | { |
512 | int idx = val - sa->offset; | |
1f115cb7 | 513 | |
9614b8d6 ACM |
514 | if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) { |
515 | size_t printed = scnprintf(bf, size, intfmt, val); | |
516 | if (show_prefix) | |
517 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix); | |
518 | return printed; | |
519 | } | |
1f115cb7 | 520 | |
c65c83ff | 521 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
03e3adc9 ACM |
522 | } |
523 | ||
975b7c2f ACM |
524 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
525 | const char *intfmt, | |
526 | struct syscall_arg *arg) | |
1f115cb7 | 527 | { |
c65c83ff | 528 | return strarray__scnprintf(arg->parm, bf, size, intfmt, arg->show_string_prefix, arg->val); |
1f115cb7 ACM |
529 | } |
530 | ||
975b7c2f ACM |
531 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
532 | struct syscall_arg *arg) | |
533 | { | |
534 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
535 | } | |
536 | ||
1f115cb7 ACM |
537 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
538 | ||
d066da97 ACM |
539 | bool syscall_arg__strtoul_strarray(char *bf, size_t size, struct syscall_arg *arg, u64 *ret) |
540 | { | |
541 | return strarray__strtoul(arg->parm, bf, size, ret); | |
542 | } | |
543 | ||
e0712baa ACM |
544 | bool syscall_arg__strtoul_strarray_flags(char *bf, size_t size, struct syscall_arg *arg, u64 *ret) |
545 | { | |
546 | return strarray__strtoul_flags(arg->parm, bf, size, ret); | |
547 | } | |
548 | ||
1a8a90b8 ACM |
549 | bool syscall_arg__strtoul_strarrays(char *bf, size_t size, struct syscall_arg *arg, u64 *ret) |
550 | { | |
551 | return strarrays__strtoul(arg->parm, bf, size, ret); | |
552 | } | |
553 | ||
f5b91dbb ACM |
554 | size_t syscall_arg__scnprintf_strarray_flags(char *bf, size_t size, struct syscall_arg *arg) |
555 | { | |
556 | return strarray__scnprintf_flags(arg->parm, bf, size, arg->show_string_prefix, arg->val); | |
557 | } | |
558 | ||
1f2d085e | 559 | size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) |
83a51694 | 560 | { |
9614b8d6 | 561 | size_t printed; |
83a51694 ACM |
562 | int i; |
563 | ||
564 | for (i = 0; i < sas->nr_entries; ++i) { | |
565 | struct strarray *sa = sas->entries[i]; | |
1f2d085e | 566 | int idx = val - sa->offset; |
83a51694 ACM |
567 | |
568 | if (idx >= 0 && idx < sa->nr_entries) { | |
569 | if (sa->entries[idx] == NULL) | |
570 | break; | |
1f2d085e | 571 | return scnprintf(bf, size, "%s%s", show_prefix ? sa->prefix : "", sa->entries[idx]); |
83a51694 ACM |
572 | } |
573 | } | |
574 | ||
9614b8d6 ACM |
575 | printed = scnprintf(bf, size, intfmt, val); |
576 | if (show_prefix) | |
577 | printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sas->entries[0]->prefix); | |
578 | return printed; | |
1f2d085e ACM |
579 | } |
580 | ||
d0a3a104 ACM |
581 | bool strarray__strtoul(struct strarray *sa, char *bf, size_t size, u64 *ret) |
582 | { | |
583 | int i; | |
584 | ||
585 | for (i = 0; i < sa->nr_entries; ++i) { | |
586 | if (sa->entries[i] && strncmp(sa->entries[i], bf, size) == 0 && sa->entries[i][size] == '\0') { | |
587 | *ret = sa->offset + i; | |
588 | return true; | |
589 | } | |
590 | } | |
591 | ||
592 | return false; | |
593 | } | |
594 | ||
154c978d ACM |
595 | bool strarray__strtoul_flags(struct strarray *sa, char *bf, size_t size, u64 *ret) |
596 | { | |
597 | u64 val = 0; | |
598 | char *tok = bf, *sep, *end; | |
599 | ||
600 | *ret = 0; | |
601 | ||
602 | while (size != 0) { | |
603 | int toklen = size; | |
604 | ||
605 | sep = memchr(tok, '|', size); | |
606 | if (sep != NULL) { | |
607 | size -= sep - tok + 1; | |
608 | ||
609 | end = sep - 1; | |
610 | while (end > tok && isspace(*end)) | |
611 | --end; | |
612 | ||
613 | toklen = end - tok + 1; | |
614 | } | |
615 | ||
616 | while (isspace(*tok)) | |
617 | ++tok; | |
618 | ||
619 | if (isalpha(*tok) || *tok == '_') { | |
620 | if (!strarray__strtoul(sa, tok, toklen, &val)) | |
621 | return false; | |
96b73141 CZ |
622 | } else |
623 | val = strtoul(tok, NULL, 0); | |
154c978d ACM |
624 | |
625 | *ret |= (1 << (val - 1)); | |
626 | ||
627 | if (sep == NULL) | |
628 | break; | |
629 | tok = sep + 1; | |
630 | } | |
631 | ||
632 | return true; | |
633 | } | |
634 | ||
d0a3a104 ACM |
635 | bool strarrays__strtoul(struct strarrays *sas, char *bf, size_t size, u64 *ret) |
636 | { | |
637 | int i; | |
638 | ||
639 | for (i = 0; i < sas->nr_entries; ++i) { | |
640 | struct strarray *sa = sas->entries[i]; | |
641 | ||
642 | if (strarray__strtoul(sa, bf, size, ret)) | |
643 | return true; | |
644 | } | |
645 | ||
646 | return false; | |
647 | } | |
648 | ||
1f2d085e ACM |
649 | size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, |
650 | struct syscall_arg *arg) | |
651 | { | |
652 | return strarrays__scnprintf(arg->parm, bf, size, "%d", arg->show_string_prefix, arg->val); | |
83a51694 ACM |
653 | } |
654 | ||
48e1f91a ACM |
655 | #ifndef AT_FDCWD |
656 | #define AT_FDCWD -100 | |
657 | #endif | |
658 | ||
75b757ca ACM |
659 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, |
660 | struct syscall_arg *arg) | |
661 | { | |
662 | int fd = arg->val; | |
c65c83ff | 663 | const char *prefix = "AT_FD"; |
75b757ca ACM |
664 | |
665 | if (fd == AT_FDCWD) | |
c65c83ff | 666 | return scnprintf(bf, size, "%s%s", arg->show_string_prefix ? prefix : "", "CWD"); |
75b757ca ACM |
667 | |
668 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
669 | } | |
670 | ||
671 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
672 | ||
673 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
674 | struct syscall_arg *arg); | |
675 | ||
676 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
677 | ||
2c2b1623 | 678 | size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg) |
13d4ff3e | 679 | { |
01533e97 | 680 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
681 | } |
682 | ||
ce05539f ACM |
683 | size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg) |
684 | { | |
685 | if (arg->val == 0) | |
686 | return scnprintf(bf, size, "NULL"); | |
687 | return syscall_arg__scnprintf_hex(bf, size, arg); | |
688 | } | |
689 | ||
2c2b1623 | 690 | size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg) |
a1c2552d ACM |
691 | { |
692 | return scnprintf(bf, size, "%d", arg->val); | |
693 | } | |
694 | ||
5dde91ed ACM |
695 | size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg) |
696 | { | |
697 | return scnprintf(bf, size, "%ld", arg->val); | |
698 | } | |
699 | ||
9597945d ACM |
700 | static size_t syscall_arg__scnprintf_char_array(char *bf, size_t size, struct syscall_arg *arg) |
701 | { | |
702 | // XXX Hey, maybe for sched:sched_switch prev/next comm fields we can | |
703 | // fill missing comms using thread__set_comm()... | |
704 | // here or in a special syscall_arg__scnprintf_pid_sched_tp... | |
c5e006cd | 705 | return scnprintf(bf, size, "\"%-.*s\"", arg->fmt->nr_entries ?: arg->len, arg->val); |
9597945d ACM |
706 | } |
707 | ||
708 | #define SCA_CHAR_ARRAY syscall_arg__scnprintf_char_array | |
709 | ||
729a7841 ACM |
710 | static const char *bpf_cmd[] = { |
711 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
ea0056f0 WL |
712 | "MAP_GET_NEXT_KEY", "PROG_LOAD", "OBJ_PIN", "OBJ_GET", "PROG_ATTACH", |
713 | "PROG_DETACH", "PROG_TEST_RUN", "PROG_GET_NEXT_ID", "MAP_GET_NEXT_ID", | |
714 | "PROG_GET_FD_BY_ID", "MAP_GET_FD_BY_ID", "OBJ_GET_INFO_BY_FD", | |
715 | "PROG_QUERY", "RAW_TRACEPOINT_OPEN", "BTF_LOAD", "BTF_GET_FD_BY_ID", | |
716 | "TASK_FD_QUERY", "MAP_LOOKUP_AND_DELETE_ELEM", "MAP_FREEZE", | |
717 | "BTF_GET_NEXT_ID", "MAP_LOOKUP_BATCH", "MAP_LOOKUP_AND_DELETE_BATCH", | |
718 | "MAP_UPDATE_BATCH", "MAP_DELETE_BATCH", "LINK_CREATE", "LINK_UPDATE", | |
719 | "LINK_GET_FD_BY_ID", "LINK_GET_NEXT_ID", "ENABLE_STATS", "ITER_CREATE", | |
720 | "LINK_DETACH", "PROG_BIND_MAP", | |
729a7841 | 721 | }; |
2e3d7fac | 722 | static DEFINE_STRARRAY(bpf_cmd, "BPF_"); |
729a7841 | 723 | |
f6af0956 ACM |
724 | static const char *fsmount_flags[] = { |
725 | [1] = "CLOEXEC", | |
726 | }; | |
727 | static DEFINE_STRARRAY(fsmount_flags, "FSMOUNT_"); | |
728 | ||
dcc6fd64 ACM |
729 | #include "trace/beauty/generated/fsconfig_arrays.c" |
730 | ||
731 | static DEFINE_STRARRAY(fsconfig_cmds, "FSCONFIG_"); | |
732 | ||
03e3adc9 | 733 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
2e3d7fac | 734 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, "EPOLL_CTL_", 1); |
eac032c5 | 735 | |
1f115cb7 | 736 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
2e3d7fac | 737 | static DEFINE_STRARRAY(itimers, "ITIMER_"); |
1f115cb7 | 738 | |
b62bee1b ACM |
739 | static const char *keyctl_options[] = { |
740 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
741 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
742 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
743 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
744 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
745 | }; | |
2e3d7fac | 746 | static DEFINE_STRARRAY(keyctl_options, "KEYCTL_"); |
b62bee1b | 747 | |
efe6b882 ACM |
748 | static const char *whences[] = { "SET", "CUR", "END", |
749 | #ifdef SEEK_DATA | |
750 | "DATA", | |
751 | #endif | |
752 | #ifdef SEEK_HOLE | |
753 | "HOLE", | |
754 | #endif | |
755 | }; | |
2e3d7fac | 756 | static DEFINE_STRARRAY(whences, "SEEK_"); |
f9da0b0c | 757 | |
80f587d5 ACM |
758 | static const char *fcntl_cmds[] = { |
759 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
e000e5e3 ACM |
760 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "GETLK64", |
761 | "SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX", | |
762 | "GETOWNER_UIDS", | |
80f587d5 | 763 | }; |
2e3d7fac | 764 | static DEFINE_STRARRAY(fcntl_cmds, "F_"); |
80f587d5 | 765 | |
83a51694 ACM |
766 | static const char *fcntl_linux_specific_cmds[] = { |
767 | "SETLEASE", "GETLEASE", "NOTIFY", [5] = "CANCELLK", "DUPFD_CLOEXEC", | |
768 | "SETPIPE_SZ", "GETPIPE_SZ", "ADD_SEALS", "GET_SEALS", | |
64e4561d | 769 | "GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT", |
83a51694 ACM |
770 | }; |
771 | ||
2e3d7fac | 772 | static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, "F_", F_LINUX_SPECIFIC_BASE); |
83a51694 ACM |
773 | |
774 | static struct strarray *fcntl_cmds_arrays[] = { | |
775 | &strarray__fcntl_cmds, | |
776 | &strarray__fcntl_linux_specific_cmds, | |
777 | }; | |
778 | ||
779 | static DEFINE_STRARRAYS(fcntl_cmds_arrays); | |
780 | ||
c045bf02 ACM |
781 | static const char *rlimit_resources[] = { |
782 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
783 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
784 | "RTTIME", | |
785 | }; | |
2e3d7fac | 786 | static DEFINE_STRARRAY(rlimit_resources, "RLIMIT_"); |
c045bf02 | 787 | |
eb5b1b14 | 788 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
2e3d7fac | 789 | static DEFINE_STRARRAY(sighow, "SIG_"); |
eb5b1b14 | 790 | |
4f8c1b74 DA |
791 | static const char *clockid[] = { |
792 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
793 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
794 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 | 795 | }; |
2e3d7fac | 796 | static DEFINE_STRARRAY(clockid, "CLOCK_"); |
4f8c1b74 | 797 | |
51108999 ACM |
798 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
799 | struct syscall_arg *arg) | |
800 | { | |
c65c83ff ACM |
801 | bool show_prefix = arg->show_string_prefix; |
802 | const char *suffix = "_OK"; | |
51108999 ACM |
803 | size_t printed = 0; |
804 | int mode = arg->val; | |
805 | ||
806 | if (mode == F_OK) /* 0 */ | |
c65c83ff | 807 | return scnprintf(bf, size, "F%s", show_prefix ? suffix : ""); |
51108999 ACM |
808 | #define P_MODE(n) \ |
809 | if (mode & n##_OK) { \ | |
c65c83ff | 810 | printed += scnprintf(bf + printed, size - printed, "%s%s", #n, show_prefix ? suffix : ""); \ |
51108999 ACM |
811 | mode &= ~n##_OK; \ |
812 | } | |
813 | ||
814 | P_MODE(R); | |
815 | P_MODE(W); | |
816 | P_MODE(X); | |
817 | #undef P_MODE | |
818 | ||
819 | if (mode) | |
820 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
821 | ||
822 | return printed; | |
823 | } | |
824 | ||
825 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
826 | ||
f994592d ACM |
827 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
828 | struct syscall_arg *arg); | |
829 | ||
830 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
831 | ||
46cce19b ACM |
832 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
833 | struct syscall_arg *arg) | |
834 | { | |
c65c83ff ACM |
835 | bool show_prefix = arg->show_string_prefix; |
836 | const char *prefix = "O_"; | |
46cce19b ACM |
837 | int printed = 0, flags = arg->val; |
838 | ||
839 | #define P_FLAG(n) \ | |
840 | if (flags & O_##n) { \ | |
c65c83ff | 841 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
46cce19b ACM |
842 | flags &= ~O_##n; \ |
843 | } | |
844 | ||
845 | P_FLAG(CLOEXEC); | |
846 | P_FLAG(NONBLOCK); | |
847 | #undef P_FLAG | |
848 | ||
849 | if (flags) | |
850 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
851 | ||
852 | return printed; | |
853 | } | |
854 | ||
855 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
856 | ||
a355a61e ACM |
857 | #ifndef GRND_NONBLOCK |
858 | #define GRND_NONBLOCK 0x0001 | |
859 | #endif | |
860 | #ifndef GRND_RANDOM | |
861 | #define GRND_RANDOM 0x0002 | |
862 | #endif | |
863 | ||
39878d49 ACM |
864 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
865 | struct syscall_arg *arg) | |
866 | { | |
c65c83ff ACM |
867 | bool show_prefix = arg->show_string_prefix; |
868 | const char *prefix = "GRND_"; | |
39878d49 ACM |
869 | int printed = 0, flags = arg->val; |
870 | ||
871 | #define P_FLAG(n) \ | |
872 | if (flags & GRND_##n) { \ | |
c65c83ff | 873 | printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \ |
39878d49 ACM |
874 | flags &= ~GRND_##n; \ |
875 | } | |
876 | ||
877 | P_FLAG(RANDOM); | |
878 | P_FLAG(NONBLOCK); | |
879 | #undef P_FLAG | |
880 | ||
881 | if (flags) | |
882 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
883 | ||
884 | return printed; | |
885 | } | |
886 | ||
887 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
888 | ||
82d4a110 ACM |
889 | #define STRARRAY(name, array) \ |
890 | { .scnprintf = SCA_STRARRAY, \ | |
d066da97 | 891 | .strtoul = STUL_STRARRAY, \ |
82d4a110 | 892 | .parm = &strarray__##array, } |
453350dd | 893 | |
f6af0956 ACM |
894 | #define STRARRAY_FLAGS(name, array) \ |
895 | { .scnprintf = SCA_STRARRAY_FLAGS, \ | |
e0712baa | 896 | .strtoul = STUL_STRARRAY_FLAGS, \ |
f6af0956 ACM |
897 | .parm = &strarray__##array, } |
898 | ||
092bd3cd | 899 | #include "trace/beauty/arch_errno_names.c" |
ea8dc3ce | 900 | #include "trace/beauty/eventfd.c" |
d5d71e86 | 901 | #include "trace/beauty/futex_op.c" |
3258abe0 | 902 | #include "trace/beauty/futex_val3.c" |
df4cb167 | 903 | #include "trace/beauty/mmap.c" |
ba2f22cf | 904 | #include "trace/beauty/mode_t.c" |
a30e6259 | 905 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 906 | #include "trace/beauty/open_flags.c" |
62de344e | 907 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 908 | #include "trace/beauty/pid.c" |
a3bca91f | 909 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 910 | #include "trace/beauty/seccomp.c" |
12199d8e | 911 | #include "trace/beauty/signum.c" |
bbf86c43 | 912 | #include "trace/beauty/socket_type.c" |
7206b900 | 913 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 914 | |
60995604 | 915 | static const struct syscall_fmt syscall_fmts[] = { |
1f63139c | 916 | { .name = "access", |
82d4a110 | 917 | .arg = { [1] = { .scnprintf = SCA_ACCMODE, /* mode */ }, }, }, |
fb7068e7 ACM |
918 | { .name = "arch_prctl", |
919 | .arg = { [0] = { .scnprintf = SCA_X86_ARCH_PRCTL_CODE, /* code */ }, | |
920 | [1] = { .scnprintf = SCA_PTR, /* arg2 */ }, }, }, | |
02ef2884 | 921 | { .name = "bind", |
ef969ca6 | 922 | .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ }, |
247dd65b ACM |
923 | [1] = { .scnprintf = SCA_SOCKADDR, /* umyaddr */ }, |
924 | [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, }, | |
1f63139c | 925 | { .name = "bpf", |
82d4a110 | 926 | .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, }, |
beccb2b5 | 927 | { .name = "brk", .hexret = true, |
ce05539f | 928 | .arg = { [0] = { .scnprintf = SCA_PTR, /* brk */ }, }, }, |
1f63139c | 929 | { .name = "clock_gettime", |
82d4a110 | 930 | .arg = { [0] = STRARRAY(clk_id, clockid), }, }, |
6ac73820 ACM |
931 | { .name = "clock_nanosleep", |
932 | .arg = { [2] = { .scnprintf = SCA_TIMESPEC, /* rqtp */ }, }, }, | |
33396a3a ACM |
933 | { .name = "clone", .errpid = true, .nr_args = 5, |
934 | .arg = { [0] = { .name = "flags", .scnprintf = SCA_CLONE_FLAGS, }, | |
935 | [1] = { .name = "child_stack", .scnprintf = SCA_HEX, }, | |
936 | [2] = { .name = "parent_tidptr", .scnprintf = SCA_HEX, }, | |
937 | [3] = { .name = "child_tidptr", .scnprintf = SCA_HEX, }, | |
938 | [4] = { .name = "tls", .scnprintf = SCA_HEX, }, }, }, | |
1f63139c | 939 | { .name = "close", |
82d4a110 | 940 | .arg = { [0] = { .scnprintf = SCA_CLOSE_FD, /* fd */ }, }, }, |
d5a7e661 | 941 | { .name = "connect", |
ef969ca6 ACM |
942 | .arg = { [0] = { .scnprintf = SCA_INT, /* fd */ }, |
943 | [1] = { .scnprintf = SCA_SOCKADDR, /* servaddr */ }, | |
1d862752 | 944 | [2] = { .scnprintf = SCA_INT, /* addrlen */ }, }, }, |
1f63139c | 945 | { .name = "epoll_ctl", |
82d4a110 | 946 | .arg = { [1] = STRARRAY(op, epoll_ctl_ops), }, }, |
1f63139c | 947 | { .name = "eventfd2", |
82d4a110 | 948 | .arg = { [1] = { .scnprintf = SCA_EFD_FLAGS, /* flags */ }, }, }, |
1f63139c | 949 | { .name = "fchmodat", |
82d4a110 | 950 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 951 | { .name = "fchownat", |
82d4a110 | 952 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 953 | { .name = "fcntl", |
82c38338 ACM |
954 | .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */ |
955 | .strtoul = STUL_STRARRAYS, | |
39cc355b ACM |
956 | .parm = &strarrays__fcntl_cmds_arrays, |
957 | .show_zero = true, }, | |
82d4a110 | 958 | [2] = { .scnprintf = SCA_FCNTL_ARG, /* arg */ }, }, }, |
1f63139c | 959 | { .name = "flock", |
82d4a110 | 960 | .arg = { [1] = { .scnprintf = SCA_FLOCK, /* cmd */ }, }, }, |
dcc6fd64 ACM |
961 | { .name = "fsconfig", |
962 | .arg = { [1] = STRARRAY(cmd, fsconfig_cmds), }, }, | |
f6af0956 ACM |
963 | { .name = "fsmount", |
964 | .arg = { [1] = STRARRAY_FLAGS(flags, fsmount_flags), | |
965 | [2] = { .scnprintf = SCA_FSMOUNT_ATTR_FLAGS, /* attr_flags */ }, }, }, | |
693bd394 ACM |
966 | { .name = "fspick", |
967 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, | |
968 | [1] = { .scnprintf = SCA_FILENAME, /* path */ }, | |
969 | [2] = { .scnprintf = SCA_FSPICK_FLAGS, /* flags */ }, }, }, | |
1f63139c ACM |
970 | { .name = "fstat", .alias = "newfstat", }, |
971 | { .name = "fstatat", .alias = "newfstatat", }, | |
972 | { .name = "futex", | |
3258abe0 ACM |
973 | .arg = { [1] = { .scnprintf = SCA_FUTEX_OP, /* op */ }, |
974 | [5] = { .scnprintf = SCA_FUTEX_VAL3, /* val3 */ }, }, }, | |
1f63139c | 975 | { .name = "futimesat", |
82d4a110 | 976 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 977 | { .name = "getitimer", |
82d4a110 | 978 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
c65f1070 | 979 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 980 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 981 | { .name = "getppid", .errpid = true, }, |
1f63139c | 982 | { .name = "getrandom", |
82d4a110 | 983 | .arg = { [2] = { .scnprintf = SCA_GETRANDOM_FLAGS, /* flags */ }, }, }, |
1f63139c | 984 | { .name = "getrlimit", |
82d4a110 | 985 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
f1c1e45e ACM |
986 | { .name = "getsockopt", |
987 | .arg = { [1] = STRARRAY(level, socket_level), }, }, | |
2d1073de | 988 | { .name = "gettid", .errpid = true, }, |
1f63139c | 989 | { .name = "ioctl", |
82d4a110 | 990 | .arg = { |
844ae5b4 ACM |
991 | #if defined(__i386__) || defined(__x86_64__) |
992 | /* | |
993 | * FIXME: Make this available to all arches. | |
994 | */ | |
1cc47f2d | 995 | [1] = { .scnprintf = SCA_IOCTL_CMD, /* cmd */ }, |
82d4a110 | 996 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 997 | #else |
82d4a110 | 998 | [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, }, |
844ae5b4 | 999 | #endif |
1de3038d ACM |
1000 | { .name = "kcmp", .nr_args = 5, |
1001 | .arg = { [0] = { .name = "pid1", .scnprintf = SCA_PID, }, | |
1002 | [1] = { .name = "pid2", .scnprintf = SCA_PID, }, | |
1003 | [2] = { .name = "type", .scnprintf = SCA_KCMP_TYPE, }, | |
1004 | [3] = { .name = "idx1", .scnprintf = SCA_KCMP_IDX, }, | |
1005 | [4] = { .name = "idx2", .scnprintf = SCA_KCMP_IDX, }, }, }, | |
1f63139c | 1006 | { .name = "keyctl", |
82d4a110 | 1007 | .arg = { [0] = STRARRAY(option, keyctl_options), }, }, |
1f63139c | 1008 | { .name = "kill", |
82d4a110 | 1009 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 1010 | { .name = "linkat", |
82d4a110 | 1011 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 1012 | { .name = "lseek", |
82d4a110 | 1013 | .arg = { [2] = STRARRAY(whence, whences), }, }, |
1f63139c ACM |
1014 | { .name = "lstat", .alias = "newlstat", }, |
1015 | { .name = "madvise", | |
82d4a110 ACM |
1016 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
1017 | [2] = { .scnprintf = SCA_MADV_BHV, /* behavior */ }, }, }, | |
1f63139c | 1018 | { .name = "mkdirat", |
82d4a110 | 1019 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
1f63139c | 1020 | { .name = "mknodat", |
82d4a110 | 1021 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, }, |
beccb2b5 | 1022 | { .name = "mmap", .hexret = true, |
54265664 JO |
1023 | /* The standard mmap maps to old_mmap on s390x */ |
1024 | #if defined(__s390x__) | |
1025 | .alias = "old_mmap", | |
1026 | #endif | |
ce05539f | 1027 | .arg = { [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, |
27198a89 ACM |
1028 | [3] = { .scnprintf = SCA_MMAP_FLAGS, /* flags */ |
1029 | .strtoul = STUL_STRARRAY_FLAGS, | |
1030 | .parm = &strarray__mmap_flags, }, | |
a6631340 | 1031 | [5] = { .scnprintf = SCA_HEX, /* offset */ }, }, }, |
73d141ad | 1032 | { .name = "mount", |
23c07a23 ACM |
1033 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* dev_name */ }, |
1034 | [3] = { .scnprintf = SCA_MOUNT_FLAGS, /* flags */ | |
73d141ad | 1035 | .mask_val = SCAMV_MOUNT_FLAGS, /* flags */ }, }, }, |
566e3022 ACM |
1036 | { .name = "move_mount", |
1037 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* from_dfd */ }, | |
1038 | [1] = { .scnprintf = SCA_FILENAME, /* from_pathname */ }, | |
1039 | [2] = { .scnprintf = SCA_FDAT, /* to_dfd */ }, | |
1040 | [3] = { .scnprintf = SCA_FILENAME, /* to_pathname */ }, | |
1041 | [4] = { .scnprintf = SCA_MOVE_MOUNT_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1042 | { .name = "mprotect", |
82d4a110 ACM |
1043 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, |
1044 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, }, | |
1f63139c | 1045 | { .name = "mq_unlink", |
82d4a110 | 1046 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, }, |
ae685380 | 1047 | { .name = "mremap", .hexret = true, |
ce05539f | 1048 | .arg = { [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, }, }, |
1f63139c | 1049 | { .name = "name_to_handle_at", |
82d4a110 | 1050 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 1051 | { .name = "newfstatat", |
82d4a110 | 1052 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 1053 | { .name = "open", |
82d4a110 | 1054 | .arg = { [1] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, |
1f63139c | 1055 | { .name = "open_by_handle_at", |
82d4a110 ACM |
1056 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
1057 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1058 | { .name = "openat", |
82d4a110 ACM |
1059 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, |
1060 | [2] = { .scnprintf = SCA_OPEN_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1061 | { .name = "perf_event_open", |
a9cd6c67 ACM |
1062 | .arg = { [0] = { .scnprintf = SCA_PERF_ATTR, /* attr */ }, |
1063 | [2] = { .scnprintf = SCA_INT, /* cpu */ }, | |
82d4a110 ACM |
1064 | [3] = { .scnprintf = SCA_FD, /* group_fd */ }, |
1065 | [4] = { .scnprintf = SCA_PERF_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1066 | { .name = "pipe2", |
82d4a110 | 1067 | .arg = { [1] = { .scnprintf = SCA_PIPE_FLAGS, /* flags */ }, }, }, |
83bc9c37 ACM |
1068 | { .name = "pkey_alloc", |
1069 | .arg = { [1] = { .scnprintf = SCA_PKEY_ALLOC_ACCESS_RIGHTS, /* access_rights */ }, }, }, | |
1070 | { .name = "pkey_free", | |
1071 | .arg = { [0] = { .scnprintf = SCA_INT, /* key */ }, }, }, | |
1072 | { .name = "pkey_mprotect", | |
1073 | .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ }, | |
1074 | [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, | |
1075 | [3] = { .scnprintf = SCA_INT, /* pkey */ }, }, }, | |
1f63139c ACM |
1076 | { .name = "poll", .timeout = true, }, |
1077 | { .name = "ppoll", .timeout = true, }, | |
fb7068e7 | 1078 | { .name = "prctl", |
d7a07b29 ACM |
1079 | .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */ |
1080 | .strtoul = STUL_STRARRAY, | |
1081 | .parm = &strarray__prctl_options, }, | |
d688d037 ACM |
1082 | [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ }, |
1083 | [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, }, | |
1f63139c ACM |
1084 | { .name = "pread", .alias = "pread64", }, |
1085 | { .name = "preadv", .alias = "pread", }, | |
1086 | { .name = "prlimit64", | |
82d4a110 | 1087 | .arg = { [1] = STRARRAY(resource, rlimit_resources), }, }, |
1f63139c ACM |
1088 | { .name = "pwrite", .alias = "pwrite64", }, |
1089 | { .name = "readlinkat", | |
82d4a110 | 1090 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 1091 | { .name = "recvfrom", |
82d4a110 | 1092 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 1093 | { .name = "recvmmsg", |
82d4a110 | 1094 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 1095 | { .name = "recvmsg", |
82d4a110 | 1096 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 1097 | { .name = "renameat", |
436651ca ACM |
1098 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, |
1099 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, }, }, | |
84a83541 ACM |
1100 | { .name = "renameat2", |
1101 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* olddirfd */ }, | |
ca7ff2c8 ACM |
1102 | [2] = { .scnprintf = SCA_FDAT, /* newdirfd */ }, |
1103 | [4] = { .scnprintf = SCA_RENAMEAT2_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1104 | { .name = "rt_sigaction", |
82d4a110 | 1105 | .arg = { [0] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 1106 | { .name = "rt_sigprocmask", |
82d4a110 | 1107 | .arg = { [0] = STRARRAY(how, sighow), }, }, |
1f63139c | 1108 | { .name = "rt_sigqueueinfo", |
82d4a110 | 1109 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 1110 | { .name = "rt_tgsigqueueinfo", |
82d4a110 | 1111 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 1112 | { .name = "sched_setscheduler", |
82d4a110 | 1113 | .arg = { [1] = { .scnprintf = SCA_SCHED_POLICY, /* policy */ }, }, }, |
1f63139c | 1114 | { .name = "seccomp", |
82d4a110 ACM |
1115 | .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP, /* op */ }, |
1116 | [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1117 | { .name = "select", .timeout = true, }, |
e4b00e93 | 1118 | { .name = "sendfile", .alias = "sendfile64", }, |
1f63139c | 1119 | { .name = "sendmmsg", |
82d4a110 | 1120 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 1121 | { .name = "sendmsg", |
82d4a110 | 1122 | .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, }, |
1f63139c | 1123 | { .name = "sendto", |
6ebb6862 ACM |
1124 | .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, |
1125 | [4] = { .scnprintf = SCA_SOCKADDR, /* addr */ }, }, }, | |
c65f1070 | 1126 | { .name = "set_tid_address", .errpid = true, }, |
1f63139c | 1127 | { .name = "setitimer", |
82d4a110 | 1128 | .arg = { [0] = STRARRAY(which, itimers), }, }, |
1f63139c | 1129 | { .name = "setrlimit", |
82d4a110 | 1130 | .arg = { [0] = STRARRAY(resource, rlimit_resources), }, }, |
0826b7fd ACM |
1131 | { .name = "setsockopt", |
1132 | .arg = { [1] = STRARRAY(level, socket_level), }, }, | |
1f63139c | 1133 | { .name = "socket", |
82d4a110 | 1134 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
1135 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
1136 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c | 1137 | { .name = "socketpair", |
82d4a110 | 1138 | .arg = { [0] = STRARRAY(family, socket_families), |
162d3edb ACM |
1139 | [1] = { .scnprintf = SCA_SK_TYPE, /* type */ }, |
1140 | [2] = { .scnprintf = SCA_SK_PROTO, /* protocol */ }, }, }, | |
1f63139c ACM |
1141 | { .name = "stat", .alias = "newstat", }, |
1142 | { .name = "statx", | |
82d4a110 ACM |
1143 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* fdat */ }, |
1144 | [2] = { .scnprintf = SCA_STATX_FLAGS, /* flags */ } , | |
1145 | [3] = { .scnprintf = SCA_STATX_MASK, /* mask */ }, }, }, | |
1f63139c | 1146 | { .name = "swapoff", |
82d4a110 | 1147 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 1148 | { .name = "swapon", |
82d4a110 | 1149 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* specialfile */ }, }, }, |
1f63139c | 1150 | { .name = "symlinkat", |
82d4a110 | 1151 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
a9a187a7 ACM |
1152 | { .name = "sync_file_range", |
1153 | .arg = { [3] = { .scnprintf = SCA_SYNC_FILE_RANGE_FLAGS, /* flags */ }, }, }, | |
1f63139c | 1154 | { .name = "tgkill", |
82d4a110 | 1155 | .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
1f63139c | 1156 | { .name = "tkill", |
82d4a110 | 1157 | .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, |
476c92ca ACM |
1158 | { .name = "umount2", .alias = "umount", |
1159 | .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, }, | |
1f63139c ACM |
1160 | { .name = "uname", .alias = "newuname", }, |
1161 | { .name = "unlinkat", | |
82d4a110 | 1162 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |
1f63139c | 1163 | { .name = "utimensat", |
82d4a110 | 1164 | .arg = { [0] = { .scnprintf = SCA_FDAT, /* dirfd */ }, }, }, |
11c8e39f | 1165 | { .name = "wait4", .errpid = true, |
82d4a110 | 1166 | .arg = { [2] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
11c8e39f | 1167 | { .name = "waitid", .errpid = true, |
82d4a110 | 1168 | .arg = { [3] = { .scnprintf = SCA_WAITID_OPTIONS, /* options */ }, }, }, |
514f1c67 ACM |
1169 | }; |
1170 | ||
1171 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
1172 | { | |
1173 | const struct syscall_fmt *fmt = fmtp; | |
1174 | return strcmp(name, fmt->name); | |
1175 | } | |
1176 | ||
60995604 IR |
1177 | static const struct syscall_fmt *__syscall_fmt__find(const struct syscall_fmt *fmts, |
1178 | const int nmemb, | |
1179 | const char *name) | |
bcddbfc5 ACM |
1180 | { |
1181 | return bsearch(name, fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
1182 | } | |
1183 | ||
60995604 | 1184 | static const struct syscall_fmt *syscall_fmt__find(const char *name) |
514f1c67 ACM |
1185 | { |
1186 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
bcddbfc5 | 1187 | return __syscall_fmt__find(syscall_fmts, nmemb, name); |
514f1c67 ACM |
1188 | } |
1189 | ||
60995604 IR |
1190 | static const struct syscall_fmt *__syscall_fmt__find_by_alias(const struct syscall_fmt *fmts, |
1191 | const int nmemb, const char *alias) | |
f932184e | 1192 | { |
bcddbfc5 | 1193 | int i; |
f932184e ACM |
1194 | |
1195 | for (i = 0; i < nmemb; ++i) { | |
bcddbfc5 ACM |
1196 | if (fmts[i].alias && strcmp(fmts[i].alias, alias) == 0) |
1197 | return &fmts[i]; | |
f932184e ACM |
1198 | } |
1199 | ||
1200 | return NULL; | |
1201 | } | |
1202 | ||
60995604 | 1203 | static const struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias) |
bcddbfc5 ACM |
1204 | { |
1205 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
1206 | return __syscall_fmt__find_by_alias(syscall_fmts, nmemb, alias); | |
1207 | } | |
1208 | ||
6a648b53 ACM |
1209 | /* |
1210 | * is_exit: is this "exit" or "exit_group"? | |
1211 | * is_open: is this "open" or "openat"? To associate the fd returned in sys_exit with the pathname in sys_enter. | |
7a983a0f | 1212 | * args_size: sum of the sizes of the syscall arguments, anything after that is augmented stuff: pathname for openat, etc. |
b8b1033f | 1213 | * nonexistent: Just a hole in the syscall table, syscall id not allocated |
6a648b53 | 1214 | */ |
514f1c67 | 1215 | struct syscall { |
97fbf3f0 | 1216 | struct tep_event *tp_format; |
f208bd8d | 1217 | int nr_args; |
7a983a0f | 1218 | int args_size; |
6ff8fff4 ACM |
1219 | struct { |
1220 | struct bpf_program *sys_enter, | |
1221 | *sys_exit; | |
1222 | } bpf_prog; | |
6a648b53 ACM |
1223 | bool is_exit; |
1224 | bool is_open; | |
b8b1033f | 1225 | bool nonexistent; |
2c92f982 | 1226 | struct tep_format_field *args; |
514f1c67 | 1227 | const char *name; |
60995604 | 1228 | const struct syscall_fmt *fmt; |
82d4a110 | 1229 | struct syscall_arg_fmt *arg_fmt; |
514f1c67 ACM |
1230 | }; |
1231 | ||
fd2b2975 ACM |
1232 | /* |
1233 | * We need to have this 'calculated' boolean because in some cases we really | |
1234 | * don't know what is the duration of a syscall, for instance, when we start | |
1235 | * a session and some threads are waiting for a syscall to finish, say 'poll', | |
1236 | * in which case all we can do is to print "( ? ) for duration and for the | |
1237 | * start timestamp. | |
1238 | */ | |
1239 | static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp) | |
60c907ab ACM |
1240 | { |
1241 | double duration = (double)t / NSEC_PER_MSEC; | |
1242 | size_t printed = fprintf(fp, "("); | |
1243 | ||
fd2b2975 | 1244 | if (!calculated) |
522283fe | 1245 | printed += fprintf(fp, " "); |
fd2b2975 | 1246 | else if (duration >= 1.0) |
60c907ab ACM |
1247 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); |
1248 | else if (duration >= 0.01) | |
1249 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
1250 | else | |
1251 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 1252 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
1253 | } |
1254 | ||
f994592d ACM |
1255 | /** |
1256 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
1257 | * filename.entry_str_pos: Where to insert the string translated from | |
1258 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
84486caa ACM |
1259 | * ret_scnprintf: syscall args may set this to a different syscall return |
1260 | * formatter, for instance, fcntl may return fds, file flags, etc. | |
f994592d | 1261 | */ |
752fde44 ACM |
1262 | struct thread_trace { |
1263 | u64 entry_time; | |
752fde44 | 1264 | bool entry_pending; |
efd5745e | 1265 | unsigned long nr_events; |
a2ea67d7 | 1266 | unsigned long pfmaj, pfmin; |
752fde44 | 1267 | char *entry_str; |
1302d88e | 1268 | double runtime_ms; |
7ee57434 | 1269 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
f994592d ACM |
1270 | struct { |
1271 | unsigned long ptr; | |
7f4f8001 ACM |
1272 | short int entry_str_pos; |
1273 | bool pending_open; | |
1274 | unsigned int namelen; | |
1275 | char *name; | |
f994592d | 1276 | } filename; |
75b757ca | 1277 | struct { |
f4a74fcb ACM |
1278 | int max; |
1279 | struct file *table; | |
1280 | } files; | |
bf2575c1 DA |
1281 | |
1282 | struct intlist *syscall_stats; | |
752fde44 ACM |
1283 | }; |
1284 | ||
1285 | static struct thread_trace *thread_trace__new(void) | |
1286 | { | |
75b757ca ACM |
1287 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
1288 | ||
7a6d49dc | 1289 | if (ttrace) { |
f4a74fcb | 1290 | ttrace->files.max = -1; |
7a6d49dc LY |
1291 | ttrace->syscall_stats = intlist__new(NULL); |
1292 | } | |
bf2575c1 | 1293 | |
75b757ca | 1294 | return ttrace; |
752fde44 ACM |
1295 | } |
1296 | ||
fcca1faf ACM |
1297 | static void thread_trace__free_files(struct thread_trace *ttrace); |
1298 | ||
9de251cb ACM |
1299 | static void thread_trace__delete(void *pttrace) |
1300 | { | |
1301 | struct thread_trace *ttrace = pttrace; | |
1302 | ||
1303 | if (!ttrace) | |
1304 | return; | |
1305 | ||
1306 | intlist__delete(ttrace->syscall_stats); | |
1307 | ttrace->syscall_stats = NULL; | |
fcca1faf | 1308 | thread_trace__free_files(ttrace); |
9de251cb ACM |
1309 | zfree(&ttrace->entry_str); |
1310 | free(ttrace); | |
1311 | } | |
1312 | ||
c24ff998 | 1313 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 1314 | { |
efd5745e ACM |
1315 | struct thread_trace *ttrace; |
1316 | ||
752fde44 ACM |
1317 | if (thread == NULL) |
1318 | goto fail; | |
1319 | ||
89dceb22 NK |
1320 | if (thread__priv(thread) == NULL) |
1321 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 1322 | |
89dceb22 | 1323 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
1324 | goto fail; |
1325 | ||
89dceb22 | 1326 | ttrace = thread__priv(thread); |
efd5745e ACM |
1327 | ++ttrace->nr_events; |
1328 | ||
1329 | return ttrace; | |
752fde44 | 1330 | fail: |
c24ff998 | 1331 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
1332 | "WARNING: not enough memory, dropping samples!\n"); |
1333 | return NULL; | |
1334 | } | |
1335 | ||
84486caa ACM |
1336 | |
1337 | void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg, | |
7ee57434 | 1338 | size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg)) |
84486caa ACM |
1339 | { |
1340 | struct thread_trace *ttrace = thread__priv(arg->thread); | |
1341 | ||
1342 | ttrace->ret_scnprintf = ret_scnprintf; | |
1343 | } | |
1344 | ||
598d02c5 SF |
1345 | #define TRACE_PFMAJ (1 << 0) |
1346 | #define TRACE_PFMIN (1 << 1) | |
1347 | ||
e4d44e83 ACM |
1348 | static const size_t trace__entry_str_size = 2048; |
1349 | ||
fcca1faf ACM |
1350 | static void thread_trace__free_files(struct thread_trace *ttrace) |
1351 | { | |
1352 | for (int i = 0; i < ttrace->files.max; ++i) { | |
1353 | struct file *file = ttrace->files.table + i; | |
1354 | zfree(&file->pathname); | |
1355 | } | |
1356 | ||
1357 | zfree(&ttrace->files.table); | |
1358 | ttrace->files.max = -1; | |
1359 | } | |
1360 | ||
d7e13484 | 1361 | static struct file *thread_trace__files_entry(struct thread_trace *ttrace, int fd) |
75b757ca | 1362 | { |
05107486 ACM |
1363 | if (fd < 0) |
1364 | return NULL; | |
1365 | ||
f4a74fcb ACM |
1366 | if (fd > ttrace->files.max) { |
1367 | struct file *nfiles = realloc(ttrace->files.table, (fd + 1) * sizeof(struct file)); | |
75b757ca | 1368 | |
f4a74fcb | 1369 | if (nfiles == NULL) |
d7e13484 | 1370 | return NULL; |
75b757ca | 1371 | |
f4a74fcb ACM |
1372 | if (ttrace->files.max != -1) { |
1373 | memset(nfiles + ttrace->files.max + 1, 0, | |
1374 | (fd - ttrace->files.max) * sizeof(struct file)); | |
75b757ca | 1375 | } else { |
f4a74fcb | 1376 | memset(nfiles, 0, (fd + 1) * sizeof(struct file)); |
75b757ca ACM |
1377 | } |
1378 | ||
f4a74fcb ACM |
1379 | ttrace->files.table = nfiles; |
1380 | ttrace->files.max = fd; | |
75b757ca ACM |
1381 | } |
1382 | ||
d7e13484 ACM |
1383 | return ttrace->files.table + fd; |
1384 | } | |
1385 | ||
2d473389 ACM |
1386 | struct file *thread__files_entry(struct thread *thread, int fd) |
1387 | { | |
1388 | return thread_trace__files_entry(thread__priv(thread), fd); | |
1389 | } | |
1390 | ||
d7e13484 ACM |
1391 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
1392 | { | |
1393 | struct thread_trace *ttrace = thread__priv(thread); | |
1394 | struct file *file = thread_trace__files_entry(ttrace, fd); | |
1395 | ||
1396 | if (file != NULL) { | |
4bcc4cff ACM |
1397 | struct stat st; |
1398 | if (stat(pathname, &st) == 0) | |
1399 | file->dev_maj = major(st.st_rdev); | |
d7e13484 ACM |
1400 | file->pathname = strdup(pathname); |
1401 | if (file->pathname) | |
1402 | return 0; | |
1403 | } | |
75b757ca | 1404 | |
d7e13484 | 1405 | return -1; |
75b757ca ACM |
1406 | } |
1407 | ||
97119f37 ACM |
1408 | static int thread__read_fd_path(struct thread *thread, int fd) |
1409 | { | |
1410 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
1411 | struct stat st; | |
1412 | int ret; | |
1413 | ||
ee84a303 | 1414 | if (thread__pid(thread) == thread__tid(thread)) { |
97119f37 | 1415 | scnprintf(linkname, sizeof(linkname), |
ee84a303 | 1416 | "/proc/%d/fd/%d", thread__pid(thread), fd); |
97119f37 ACM |
1417 | } else { |
1418 | scnprintf(linkname, sizeof(linkname), | |
ee84a303 IR |
1419 | "/proc/%d/task/%d/fd/%d", |
1420 | thread__pid(thread), thread__tid(thread), fd); | |
97119f37 ACM |
1421 | } |
1422 | ||
1423 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
1424 | return -1; | |
1425 | ||
1426 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
1427 | ||
1428 | if (ret < 0 || ret > st.st_size) | |
1429 | return -1; | |
1430 | ||
1431 | pathname[ret] = '\0'; | |
1432 | return trace__set_fd_pathname(thread, fd, pathname); | |
1433 | } | |
1434 | ||
c522739d ACM |
1435 | static const char *thread__fd_path(struct thread *thread, int fd, |
1436 | struct trace *trace) | |
75b757ca | 1437 | { |
89dceb22 | 1438 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca | 1439 | |
79d725cd | 1440 | if (ttrace == NULL || trace->fd_path_disabled) |
75b757ca ACM |
1441 | return NULL; |
1442 | ||
1443 | if (fd < 0) | |
1444 | return NULL; | |
1445 | ||
f4a74fcb | 1446 | if ((fd > ttrace->files.max || ttrace->files.table[fd].pathname == NULL)) { |
c522739d ACM |
1447 | if (!trace->live) |
1448 | return NULL; | |
1449 | ++trace->stats.proc_getname; | |
cdcd1e6b | 1450 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
1451 | return NULL; |
1452 | } | |
75b757ca | 1453 | |
f4a74fcb | 1454 | return ttrace->files.table[fd].pathname; |
75b757ca ACM |
1455 | } |
1456 | ||
fc65eb82 | 1457 | size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg) |
75b757ca ACM |
1458 | { |
1459 | int fd = arg->val; | |
1460 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 1461 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
1462 | |
1463 | if (path) | |
1464 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1465 | ||
1466 | return printed; | |
1467 | } | |
1468 | ||
0a2f7540 ACM |
1469 | size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size) |
1470 | { | |
1471 | size_t printed = scnprintf(bf, size, "%d", fd); | |
1472 | struct thread *thread = machine__find_thread(trace->host, pid, pid); | |
1473 | ||
1474 | if (thread) { | |
1475 | const char *path = thread__fd_path(thread, fd, trace); | |
1476 | ||
1477 | if (path) | |
1478 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1479 | ||
1480 | thread__put(thread); | |
1481 | } | |
1482 | ||
1483 | return printed; | |
1484 | } | |
1485 | ||
75b757ca ACM |
1486 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, |
1487 | struct syscall_arg *arg) | |
1488 | { | |
1489 | int fd = arg->val; | |
1490 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 1491 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 1492 | |
f4a74fcb ACM |
1493 | if (ttrace && fd >= 0 && fd <= ttrace->files.max) |
1494 | zfree(&ttrace->files.table[fd].pathname); | |
75b757ca ACM |
1495 | |
1496 | return printed; | |
1497 | } | |
1498 | ||
f994592d ACM |
1499 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1500 | unsigned long ptr) | |
1501 | { | |
1502 | struct thread_trace *ttrace = thread__priv(thread); | |
1503 | ||
1504 | ttrace->filename.ptr = ptr; | |
1505 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1506 | } | |
1507 | ||
75d1e306 ACM |
1508 | static size_t syscall_arg__scnprintf_augmented_string(struct syscall_arg *arg, char *bf, size_t size) |
1509 | { | |
1510 | struct augmented_arg *augmented_arg = arg->augmented.args; | |
8195168e ACM |
1511 | size_t printed = scnprintf(bf, size, "\"%.*s\"", augmented_arg->size, augmented_arg->value); |
1512 | /* | |
1513 | * So that the next arg with a payload can consume its augmented arg, i.e. for rename* syscalls | |
1514 | * we would have two strings, each prefixed by its size. | |
1515 | */ | |
1516 | int consumed = sizeof(*augmented_arg) + augmented_arg->size; | |
75d1e306 | 1517 | |
016f327c | 1518 | arg->augmented.args = ((void *)arg->augmented.args) + consumed; |
8195168e | 1519 | arg->augmented.size -= consumed; |
75d1e306 | 1520 | |
8195168e | 1521 | return printed; |
75d1e306 ACM |
1522 | } |
1523 | ||
f994592d ACM |
1524 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
1525 | struct syscall_arg *arg) | |
1526 | { | |
1527 | unsigned long ptr = arg->val; | |
1528 | ||
75d1e306 ACM |
1529 | if (arg->augmented.args) |
1530 | return syscall_arg__scnprintf_augmented_string(arg, bf, size); | |
1531 | ||
f994592d ACM |
1532 | if (!arg->trace->vfs_getname) |
1533 | return scnprintf(bf, size, "%#x", ptr); | |
1534 | ||
1535 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1536 | return 0; | |
1537 | } | |
1538 | ||
ae9ed035 ACM |
1539 | static bool trace__filter_duration(struct trace *trace, double t) |
1540 | { | |
1541 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1542 | } | |
1543 | ||
fd2b2975 | 1544 | static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
752fde44 ACM |
1545 | { |
1546 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1547 | ||
60c907ab | 1548 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1549 | } |
1550 | ||
fd2b2975 ACM |
1551 | /* |
1552 | * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are | |
1553 | * using ttrace->entry_time for a thread that receives a sys_exit without | |
1554 | * first having received a sys_enter ("poll" issued before tracing session | |
1555 | * starts, lost sys_enter exit due to ring buffer overflow). | |
1556 | */ | |
1557 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) | |
1558 | { | |
1559 | if (tstamp > 0) | |
1560 | return __trace__fprintf_tstamp(trace, tstamp, fp); | |
1561 | ||
1562 | return fprintf(fp, " ? "); | |
1563 | } | |
1564 | ||
de9f498d | 1565 | static pid_t workload_pid = -1; |
92ea0720 IR |
1566 | static volatile sig_atomic_t done = false; |
1567 | static volatile sig_atomic_t interrupted = false; | |
f15eb531 | 1568 | |
de9f498d | 1569 | static void sighandler_interrupt(int sig __maybe_unused) |
f15eb531 | 1570 | { |
de9f498d CD |
1571 | done = interrupted = true; |
1572 | } | |
1573 | ||
1574 | static void sighandler_chld(int sig __maybe_unused, siginfo_t *info, | |
1575 | void *context __maybe_unused) | |
1576 | { | |
1577 | if (info->si_pid == workload_pid) | |
1578 | done = true; | |
f15eb531 NK |
1579 | } |
1580 | ||
6dcbd212 | 1581 | static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp) |
752fde44 | 1582 | { |
6dcbd212 | 1583 | size_t printed = 0; |
752fde44 | 1584 | |
50c95cbd ACM |
1585 | if (trace->multiple_threads) { |
1586 | if (trace->show_comm) | |
1902efe7 | 1587 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
ee84a303 | 1588 | printed += fprintf(fp, "%d ", thread__tid(thread)); |
50c95cbd | 1589 | } |
752fde44 ACM |
1590 | |
1591 | return printed; | |
1592 | } | |
1593 | ||
6dcbd212 ACM |
1594 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
1595 | u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) | |
1596 | { | |
b036146f ACM |
1597 | size_t printed = 0; |
1598 | ||
1599 | if (trace->show_tstamp) | |
1600 | printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
42e4a52d ACM |
1601 | if (trace->show_duration) |
1602 | printed += fprintf_duration(duration, duration_calculated, fp); | |
6dcbd212 ACM |
1603 | return printed + trace__fprintf_comm_tid(trace, thread, fp); |
1604 | } | |
1605 | ||
c24ff998 | 1606 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1607 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1608 | { |
1609 | int ret = 0; | |
1610 | ||
1611 | switch (event->header.type) { | |
1612 | case PERF_RECORD_LOST: | |
c24ff998 | 1613 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1614 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1615 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1616 | break; |
752fde44 | 1617 | default: |
162f0bef | 1618 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1619 | break; |
1620 | } | |
1621 | ||
1622 | return ret; | |
1623 | } | |
1624 | ||
c24ff998 | 1625 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1626 | union perf_event *event, |
162f0bef | 1627 | struct perf_sample *sample, |
752fde44 ACM |
1628 | struct machine *machine) |
1629 | { | |
c24ff998 | 1630 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1631 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1632 | } |
1633 | ||
caf8a0d0 ACM |
1634 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1635 | { | |
1636 | struct machine *machine = vmachine; | |
1637 | ||
1638 | if (machine->kptr_restrict_warned) | |
1639 | return NULL; | |
1640 | ||
1641 | if (symbol_conf.kptr_restrict) { | |
1642 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
d06e5fad | 1643 | "Check /proc/sys/kernel/kptr_restrict and /proc/sys/kernel/perf_event_paranoid.\n\n" |
caf8a0d0 ACM |
1644 | "Kernel samples will not be resolved.\n"); |
1645 | machine->kptr_restrict_warned = true; | |
1646 | return NULL; | |
1647 | } | |
1648 | ||
1649 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1650 | } | |
1651 | ||
63503dba | 1652 | static int trace__symbols_init(struct trace *trace, struct evlist *evlist) |
752fde44 | 1653 | { |
0a7e6d1b | 1654 | int err = symbol__init(NULL); |
752fde44 ACM |
1655 | |
1656 | if (err) | |
1657 | return err; | |
1658 | ||
8fb598e5 DA |
1659 | trace->host = machine__new_host(); |
1660 | if (trace->host == NULL) | |
1661 | return -ENOMEM; | |
752fde44 | 1662 | |
9de251cb ACM |
1663 | thread__set_priv_destructor(thread_trace__delete); |
1664 | ||
cbd5c178 AV |
1665 | err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr); |
1666 | if (err < 0) | |
1667 | goto out; | |
706c3da4 | 1668 | |
a33fbd56 | 1669 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
84111b9c NK |
1670 | evlist->core.threads, trace__tool_process, |
1671 | true, false, 1); | |
cbd5c178 | 1672 | out: |
752fde44 ACM |
1673 | if (err) |
1674 | symbol__exit(); | |
1675 | ||
1676 | return err; | |
1677 | } | |
1678 | ||
33974a41 AV |
1679 | static void trace__symbols__exit(struct trace *trace) |
1680 | { | |
1681 | machine__exit(trace->host); | |
1682 | trace->host = NULL; | |
1683 | ||
1684 | symbol__exit(); | |
1685 | } | |
1686 | ||
5e58fcfa | 1687 | static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args) |
13d4ff3e | 1688 | { |
5e58fcfa | 1689 | int idx; |
13d4ff3e | 1690 | |
eadcab4c | 1691 | if (nr_args == RAW_SYSCALL_ARGS_NUM && sc->fmt && sc->fmt->nr_args != 0) |
332337da ACM |
1692 | nr_args = sc->fmt->nr_args; |
1693 | ||
5e58fcfa | 1694 | sc->arg_fmt = calloc(nr_args, sizeof(*sc->arg_fmt)); |
82d4a110 | 1695 | if (sc->arg_fmt == NULL) |
13d4ff3e ACM |
1696 | return -1; |
1697 | ||
5e58fcfa ACM |
1698 | for (idx = 0; idx < nr_args; ++idx) { |
1699 | if (sc->fmt) | |
82d4a110 | 1700 | sc->arg_fmt[idx] = sc->fmt->arg[idx]; |
5e58fcfa | 1701 | } |
82d4a110 | 1702 | |
5e58fcfa ACM |
1703 | sc->nr_args = nr_args; |
1704 | return 0; | |
1705 | } | |
1706 | ||
60995604 | 1707 | static const struct syscall_arg_fmt syscall_arg_fmts__by_name[] = { |
df604bfd ACM |
1708 | { .name = "msr", .scnprintf = SCA_X86_MSR, .strtoul = STUL_X86_MSR, }, |
1709 | { .name = "vector", .scnprintf = SCA_X86_IRQ_VECTORS, .strtoul = STUL_X86_IRQ_VECTORS, }, | |
5d88099b ACM |
1710 | }; |
1711 | ||
1712 | static int syscall_arg_fmt__cmp(const void *name, const void *fmtp) | |
1713 | { | |
1714 | const struct syscall_arg_fmt *fmt = fmtp; | |
1715 | return strcmp(name, fmt->name); | |
1716 | } | |
1717 | ||
60995604 IR |
1718 | static const struct syscall_arg_fmt * |
1719 | __syscall_arg_fmt__find_by_name(const struct syscall_arg_fmt *fmts, const int nmemb, | |
1720 | const char *name) | |
5d88099b ACM |
1721 | { |
1722 | return bsearch(name, fmts, nmemb, sizeof(struct syscall_arg_fmt), syscall_arg_fmt__cmp); | |
1723 | } | |
1724 | ||
60995604 | 1725 | static const struct syscall_arg_fmt *syscall_arg_fmt__find_by_name(const char *name) |
5d88099b ACM |
1726 | { |
1727 | const int nmemb = ARRAY_SIZE(syscall_arg_fmts__by_name); | |
1728 | return __syscall_arg_fmt__find_by_name(syscall_arg_fmts__by_name, nmemb, name); | |
1729 | } | |
1730 | ||
8d1d4ff5 ACM |
1731 | static struct tep_format_field * |
1732 | syscall_arg_fmt__init_array(struct syscall_arg_fmt *arg, struct tep_format_field *field) | |
5e58fcfa | 1733 | { |
8d1d4ff5 ACM |
1734 | struct tep_format_field *last_field = NULL; |
1735 | int len; | |
5e58fcfa | 1736 | |
8d1d4ff5 | 1737 | for (; field; field = field->next, ++arg) { |
7a983a0f ACM |
1738 | last_field = field; |
1739 | ||
8d1d4ff5 | 1740 | if (arg->scnprintf) |
5e58fcfa | 1741 | continue; |
1f115cb7 | 1742 | |
dea87bfb ACM |
1743 | len = strlen(field->name); |
1744 | ||
82d4a110 | 1745 | if (strcmp(field->type, "const char *") == 0 && |
dea87bfb ACM |
1746 | ((len >= 4 && strcmp(field->name + len - 4, "name") == 0) || |
1747 | strstr(field->name, "path") != NULL)) | |
8d1d4ff5 | 1748 | arg->scnprintf = SCA_FILENAME; |
ce05539f | 1749 | else if ((field->flags & TEP_FIELD_IS_POINTER) || strstr(field->name, "addr")) |
8d1d4ff5 | 1750 | arg->scnprintf = SCA_PTR; |
d1d438a3 | 1751 | else if (strcmp(field->type, "pid_t") == 0) |
8d1d4ff5 | 1752 | arg->scnprintf = SCA_PID; |
ba2f22cf | 1753 | else if (strcmp(field->type, "umode_t") == 0) |
8d1d4ff5 | 1754 | arg->scnprintf = SCA_MODE_T; |
c5e006cd | 1755 | else if ((field->flags & TEP_FIELD_IS_ARRAY) && strstr(field->type, "char")) { |
9597945d ACM |
1756 | arg->scnprintf = SCA_CHAR_ARRAY; |
1757 | arg->nr_entries = field->arraylen; | |
1758 | } else if ((strcmp(field->type, "int") == 0 || | |
b6565c90 ACM |
1759 | strcmp(field->type, "unsigned int") == 0 || |
1760 | strcmp(field->type, "long") == 0) && | |
dea87bfb | 1761 | len >= 2 && strcmp(field->name + len - 2, "fd") == 0) { |
b6565c90 ACM |
1762 | /* |
1763 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
818448e9 | 1764 | * grep -E 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c |
b6565c90 ACM |
1765 | * 65 int |
1766 | * 23 unsigned int | |
1767 | * 7 unsigned long | |
1768 | */ | |
8d1d4ff5 | 1769 | arg->scnprintf = SCA_FD; |
60995604 IR |
1770 | } else { |
1771 | const struct syscall_arg_fmt *fmt = | |
1772 | syscall_arg_fmt__find_by_name(field->name); | |
5d88099b | 1773 | |
3f41b778 | 1774 | if (fmt) { |
5d88099b | 1775 | arg->scnprintf = fmt->scnprintf; |
3f41b778 ACM |
1776 | arg->strtoul = fmt->strtoul; |
1777 | } | |
b6565c90 | 1778 | } |
13d4ff3e ACM |
1779 | } |
1780 | ||
8d1d4ff5 ACM |
1781 | return last_field; |
1782 | } | |
1783 | ||
1784 | static int syscall__set_arg_fmts(struct syscall *sc) | |
1785 | { | |
1786 | struct tep_format_field *last_field = syscall_arg_fmt__init_array(sc->arg_fmt, sc->args); | |
1787 | ||
7a983a0f ACM |
1788 | if (last_field) |
1789 | sc->args_size = last_field->offset + last_field->size; | |
1790 | ||
13d4ff3e ACM |
1791 | return 0; |
1792 | } | |
1793 | ||
514f1c67 ACM |
1794 | static int trace__read_syscall_info(struct trace *trace, int id) |
1795 | { | |
1796 | char tp_name[128]; | |
1797 | struct syscall *sc; | |
fd0db102 | 1798 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 | 1799 | |
d21cb73a | 1800 | #ifdef HAVE_SYSCALL_TABLE_SUPPORT |
30a910d7 | 1801 | if (trace->syscalls.table == NULL) { |
3e70008a | 1802 | trace->syscalls.table = calloc(trace->sctbl->syscalls.max_id + 1, sizeof(*sc)); |
30a910d7 | 1803 | if (trace->syscalls.table == NULL) |
5d2bd889 | 1804 | return -ENOMEM; |
514f1c67 | 1805 | } |
d21cb73a ACM |
1806 | #else |
1807 | if (id > trace->sctbl->syscalls.max_id || (id == 0 && trace->syscalls.table == NULL)) { | |
1808 | // When using libaudit we don't know beforehand what is the max syscall id | |
1809 | struct syscall *table = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
1810 | ||
1811 | if (table == NULL) | |
1812 | return -ENOMEM; | |
514f1c67 | 1813 | |
f3013f7e JS |
1814 | // Need to memset from offset 0 and +1 members if brand new |
1815 | if (trace->syscalls.table == NULL) | |
1816 | memset(table, 0, (id + 1) * sizeof(*sc)); | |
1817 | else | |
1818 | memset(table + trace->sctbl->syscalls.max_id + 1, 0, (id - trace->sctbl->syscalls.max_id) * sizeof(*sc)); | |
d21cb73a ACM |
1819 | |
1820 | trace->syscalls.table = table; | |
1821 | trace->sctbl->syscalls.max_id = id; | |
1822 | } | |
1823 | #endif | |
514f1c67 | 1824 | sc = trace->syscalls.table + id; |
b8b1033f | 1825 | if (sc->nonexistent) |
d4223e17 | 1826 | return -EEXIST; |
2ae3a312 | 1827 | |
b8b1033f ACM |
1828 | if (name == NULL) { |
1829 | sc->nonexistent = true; | |
d4223e17 | 1830 | return -EEXIST; |
b8b1033f ACM |
1831 | } |
1832 | ||
1833 | sc->name = name; | |
3a531260 | 1834 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1835 | |
aec1930b | 1836 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1837 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1838 | |
8dd2a131 | 1839 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1840 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1841 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1842 | } |
514f1c67 | 1843 | |
03e9a5d8 LY |
1844 | /* |
1845 | * Fails to read trace point format via sysfs node, so the trace point | |
1846 | * doesn't exist. Set the 'nonexistent' flag as true. | |
1847 | */ | |
1848 | if (IS_ERR(sc->tp_format)) { | |
1849 | sc->nonexistent = true; | |
1850 | return PTR_ERR(sc->tp_format); | |
1851 | } | |
1852 | ||
eadcab4c LY |
1853 | if (syscall__alloc_arg_fmts(sc, IS_ERR(sc->tp_format) ? |
1854 | RAW_SYSCALL_ARGS_NUM : sc->tp_format->format.nr_fields)) | |
5d2bd889 | 1855 | return -ENOMEM; |
5e58fcfa | 1856 | |
f208bd8d | 1857 | sc->args = sc->tp_format->format.fields; |
c42de706 TS |
1858 | /* |
1859 | * We need to check and discard the first variable '__syscall_nr' | |
1860 | * or 'nr' that mean the syscall number. It is needless here. | |
1861 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1862 | */ | |
1863 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1864 | sc->args = sc->args->next; |
1865 | --sc->nr_args; | |
1866 | } | |
1867 | ||
5089f20e | 1868 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
6a648b53 | 1869 | sc->is_open = !strcmp(name, "open") || !strcmp(name, "openat"); |
5089f20e | 1870 | |
13d4ff3e | 1871 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1872 | } |
1873 | ||
794bca26 | 1874 | static int evsel__init_tp_arg_scnprintf(struct evsel *evsel) |
947b843c | 1875 | { |
8b913df5 | 1876 | struct syscall_arg_fmt *fmt = evsel__syscall_arg_fmt(evsel); |
947b843c | 1877 | |
8b913df5 ACM |
1878 | if (fmt != NULL) { |
1879 | syscall_arg_fmt__init_array(fmt, evsel->tp_format->format.fields); | |
947b843c ACM |
1880 | return 0; |
1881 | } | |
1882 | ||
1883 | return -ENOMEM; | |
1884 | } | |
1885 | ||
83e69b92 ACM |
1886 | static int intcmp(const void *a, const void *b) |
1887 | { | |
1888 | const int *one = a, *another = b; | |
1889 | ||
1890 | return *one - *another; | |
1891 | } | |
1892 | ||
d0cc439b ACM |
1893 | static int trace__validate_ev_qualifier(struct trace *trace) |
1894 | { | |
a4066d64 | 1895 | int err = 0; |
04c41bcb | 1896 | bool printed_invalid_prefix = false; |
d0cc439b | 1897 | struct str_node *pos; |
99f26f85 | 1898 | size_t nr_used = 0, nr_allocated = strlist__nr_entries(trace->ev_qualifier); |
d0cc439b | 1899 | |
99f26f85 | 1900 | trace->ev_qualifier_ids.entries = malloc(nr_allocated * |
8b3ce757 ACM |
1901 | sizeof(trace->ev_qualifier_ids.entries[0])); |
1902 | ||
1903 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1904 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1905 | trace->output); | |
1906 | err = -EINVAL; | |
1907 | goto out; | |
1908 | } | |
1909 | ||
602a1f4d | 1910 | strlist__for_each_entry(pos, trace->ev_qualifier) { |
d0cc439b | 1911 | const char *sc = pos->s; |
27702bcf | 1912 | int id = syscalltbl__id(trace->sctbl, sc), match_next = -1; |
d0cc439b | 1913 | |
8b3ce757 | 1914 | if (id < 0) { |
27702bcf ACM |
1915 | id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next); |
1916 | if (id >= 0) | |
1917 | goto matches; | |
1918 | ||
04c41bcb ACM |
1919 | if (!printed_invalid_prefix) { |
1920 | pr_debug("Skipping unknown syscalls: "); | |
1921 | printed_invalid_prefix = true; | |
d0cc439b | 1922 | } else { |
04c41bcb | 1923 | pr_debug(", "); |
d0cc439b ACM |
1924 | } |
1925 | ||
04c41bcb ACM |
1926 | pr_debug("%s", sc); |
1927 | continue; | |
d0cc439b | 1928 | } |
27702bcf | 1929 | matches: |
99f26f85 | 1930 | trace->ev_qualifier_ids.entries[nr_used++] = id; |
27702bcf ACM |
1931 | if (match_next == -1) |
1932 | continue; | |
1933 | ||
1934 | while (1) { | |
1935 | id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); | |
1936 | if (id < 0) | |
1937 | break; | |
99f26f85 | 1938 | if (nr_allocated == nr_used) { |
27702bcf ACM |
1939 | void *entries; |
1940 | ||
1941 | nr_allocated += 8; | |
1942 | entries = realloc(trace->ev_qualifier_ids.entries, | |
1943 | nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0])); | |
1944 | if (entries == NULL) { | |
1945 | err = -ENOMEM; | |
1946 | fputs("\nError:\t Not enough memory for parsing\n", trace->output); | |
1947 | goto out_free; | |
1948 | } | |
1949 | trace->ev_qualifier_ids.entries = entries; | |
1950 | } | |
99f26f85 | 1951 | trace->ev_qualifier_ids.entries[nr_used++] = id; |
27702bcf | 1952 | } |
d0cc439b ACM |
1953 | } |
1954 | ||
99f26f85 | 1955 | trace->ev_qualifier_ids.nr = nr_used; |
83e69b92 | 1956 | qsort(trace->ev_qualifier_ids.entries, nr_used, sizeof(int), intcmp); |
8b3ce757 | 1957 | out: |
04c41bcb ACM |
1958 | if (printed_invalid_prefix) |
1959 | pr_debug("\n"); | |
d0cc439b | 1960 | return err; |
04c41bcb ACM |
1961 | out_free: |
1962 | zfree(&trace->ev_qualifier_ids.entries); | |
1963 | trace->ev_qualifier_ids.nr = 0; | |
1964 | goto out; | |
d0cc439b ACM |
1965 | } |
1966 | ||
3803a229 ACM |
1967 | static __maybe_unused bool trace__syscall_enabled(struct trace *trace, int id) |
1968 | { | |
1969 | bool in_ev_qualifier; | |
1970 | ||
1971 | if (trace->ev_qualifier_ids.nr == 0) | |
1972 | return true; | |
1973 | ||
1974 | in_ev_qualifier = bsearch(&id, trace->ev_qualifier_ids.entries, | |
1975 | trace->ev_qualifier_ids.nr, sizeof(int), intcmp) != NULL; | |
1976 | ||
1977 | if (in_ev_qualifier) | |
1978 | return !trace->not_ev_qualifier; | |
1979 | ||
1980 | return trace->not_ev_qualifier; | |
1981 | } | |
1982 | ||
55d43bca DA |
1983 | /* |
1984 | * args is to be interpreted as a series of longs but we need to handle | |
1985 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1986 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1987 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1988 | * variable to read it. Most notably this avoids extended load instructions | |
1989 | * on unaligned addresses | |
1990 | */ | |
325f5091 | 1991 | unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx) |
f9f83b33 ACM |
1992 | { |
1993 | unsigned long val; | |
325f5091 | 1994 | unsigned char *p = arg->args + sizeof(unsigned long) * idx; |
f9f83b33 ACM |
1995 | |
1996 | memcpy(&val, p, sizeof(val)); | |
1997 | return val; | |
1998 | } | |
1999 | ||
c51bdfec ACM |
2000 | static size_t syscall__scnprintf_name(struct syscall *sc, char *bf, size_t size, |
2001 | struct syscall_arg *arg) | |
2002 | { | |
2003 | if (sc->arg_fmt && sc->arg_fmt[arg->idx].name) | |
2004 | return scnprintf(bf, size, "%s: ", sc->arg_fmt[arg->idx].name); | |
2005 | ||
2006 | return scnprintf(bf, size, "arg%d: ", arg->idx); | |
2007 | } | |
2008 | ||
496fd346 ACM |
2009 | /* |
2010 | * Check if the value is in fact zero, i.e. mask whatever needs masking, such | |
2011 | * as mount 'flags' argument that needs ignoring some magic flag, see comment | |
2012 | * in tools/perf/trace/beauty/mount_flags.c | |
2013 | */ | |
3e0c9b2c | 2014 | static unsigned long syscall_arg_fmt__mask_val(struct syscall_arg_fmt *fmt, struct syscall_arg *arg, unsigned long val) |
496fd346 | 2015 | { |
3e0c9b2c ACM |
2016 | if (fmt && fmt->mask_val) |
2017 | return fmt->mask_val(arg, val); | |
496fd346 ACM |
2018 | |
2019 | return val; | |
2020 | } | |
2021 | ||
3e0c9b2c ACM |
2022 | static size_t syscall_arg_fmt__scnprintf_val(struct syscall_arg_fmt *fmt, char *bf, size_t size, |
2023 | struct syscall_arg *arg, unsigned long val) | |
d032d79e | 2024 | { |
3e0c9b2c | 2025 | if (fmt && fmt->scnprintf) { |
d032d79e | 2026 | arg->val = val; |
3e0c9b2c ACM |
2027 | if (fmt->parm) |
2028 | arg->parm = fmt->parm; | |
2029 | return fmt->scnprintf(bf, size, arg); | |
d032d79e ACM |
2030 | } |
2031 | return scnprintf(bf, size, "%ld", val); | |
2032 | } | |
2033 | ||
752fde44 | 2034 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
7a983a0f ACM |
2035 | unsigned char *args, void *augmented_args, int augmented_args_size, |
2036 | struct trace *trace, struct thread *thread) | |
514f1c67 | 2037 | { |
514f1c67 | 2038 | size_t printed = 0; |
55d43bca | 2039 | unsigned long val; |
d032d79e ACM |
2040 | u8 bit = 1; |
2041 | struct syscall_arg arg = { | |
2042 | .args = args, | |
7a983a0f ACM |
2043 | .augmented = { |
2044 | .size = augmented_args_size, | |
2045 | .args = augmented_args, | |
2046 | }, | |
d032d79e ACM |
2047 | .idx = 0, |
2048 | .mask = 0, | |
2049 | .trace = trace, | |
2050 | .thread = thread, | |
c65c83ff | 2051 | .show_string_prefix = trace->show_string_prefix, |
d032d79e | 2052 | }; |
84486caa ACM |
2053 | struct thread_trace *ttrace = thread__priv(thread); |
2054 | ||
2055 | /* | |
2056 | * Things like fcntl will set this in its 'cmd' formatter to pick the | |
2057 | * right formatter for the return value (an fd? file flags?), which is | |
2058 | * not needed for syscalls that always return a given type, say an fd. | |
2059 | */ | |
2060 | ttrace->ret_scnprintf = NULL; | |
514f1c67 | 2061 | |
f208bd8d | 2062 | if (sc->args != NULL) { |
2c92f982 | 2063 | struct tep_format_field *field; |
6e7eeb51 | 2064 | |
f208bd8d | 2065 | for (field = sc->args; field; |
01533e97 ACM |
2066 | field = field->next, ++arg.idx, bit <<= 1) { |
2067 | if (arg.mask & bit) | |
6e7eeb51 | 2068 | continue; |
55d43bca | 2069 | |
888ca854 | 2070 | arg.fmt = &sc->arg_fmt[arg.idx]; |
f9f83b33 | 2071 | val = syscall_arg__val(&arg, arg.idx); |
496fd346 ACM |
2072 | /* |
2073 | * Some syscall args need some mask, most don't and | |
2074 | * return val untouched. | |
2075 | */ | |
3e0c9b2c | 2076 | val = syscall_arg_fmt__mask_val(&sc->arg_fmt[arg.idx], &arg, val); |
55d43bca | 2077 | |
4aa58232 ACM |
2078 | /* |
2079 | * Suppress this argument if its value is zero and | |
2080 | * and we don't have a string associated in an | |
2081 | * strarray for it. | |
2082 | */ | |
55d43bca | 2083 | if (val == 0 && |
e7c634fc | 2084 | !trace->show_zeros && |
82d4a110 | 2085 | !(sc->arg_fmt && |
d47737d5 ACM |
2086 | (sc->arg_fmt[arg.idx].show_zero || |
2087 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY || | |
82d4a110 ACM |
2088 | sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) && |
2089 | sc->arg_fmt[arg.idx].parm)) | |
22ae5cf1 ACM |
2090 | continue; |
2091 | ||
9d6dc178 ACM |
2092 | printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : ""); |
2093 | ||
2094 | if (trace->show_arg_names) | |
2095 | printed += scnprintf(bf + printed, size - printed, "%s: ", field->name); | |
2096 | ||
3e0c9b2c ACM |
2097 | printed += syscall_arg_fmt__scnprintf_val(&sc->arg_fmt[arg.idx], |
2098 | bf + printed, size - printed, &arg, val); | |
514f1c67 | 2099 | } |
4c4d6e51 ACM |
2100 | } else if (IS_ERR(sc->tp_format)) { |
2101 | /* | |
2102 | * If we managed to read the tracepoint /format file, then we | |
2103 | * may end up not having any args, like with gettid(), so only | |
2104 | * print the raw args when we didn't manage to read it. | |
2105 | */ | |
332337da | 2106 | while (arg.idx < sc->nr_args) { |
d032d79e ACM |
2107 | if (arg.mask & bit) |
2108 | goto next_arg; | |
2109 | val = syscall_arg__val(&arg, arg.idx); | |
c51bdfec ACM |
2110 | if (printed) |
2111 | printed += scnprintf(bf + printed, size - printed, ", "); | |
2112 | printed += syscall__scnprintf_name(sc, bf + printed, size - printed, &arg); | |
3e0c9b2c | 2113 | printed += syscall_arg_fmt__scnprintf_val(&sc->arg_fmt[arg.idx], bf + printed, size - printed, &arg, val); |
d032d79e ACM |
2114 | next_arg: |
2115 | ++arg.idx; | |
2116 | bit <<= 1; | |
514f1c67 ACM |
2117 | } |
2118 | } | |
2119 | ||
2120 | return printed; | |
2121 | } | |
2122 | ||
32dcd021 | 2123 | typedef int (*tracepoint_handler)(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2124 | union perf_event *event, |
ba3d7dee ACM |
2125 | struct perf_sample *sample); |
2126 | ||
2127 | static struct syscall *trace__syscall_info(struct trace *trace, | |
32dcd021 | 2128 | struct evsel *evsel, int id) |
ba3d7dee | 2129 | { |
5d2bd889 | 2130 | int err = 0; |
ba3d7dee ACM |
2131 | |
2132 | if (id < 0) { | |
adaa18bf ACM |
2133 | |
2134 | /* | |
2135 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
2136 | * before that, leaving at a higher verbosity level till that is | |
2137 | * explained. Reproduced with plain ftrace with: | |
2138 | * | |
2139 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
2140 | * grep "NR -1 " /t/trace_pipe | |
2141 | * | |
2142 | * After generating some load on the machine. | |
2143 | */ | |
2144 | if (verbose > 1) { | |
2145 | static u64 n; | |
2146 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
8ab2e96d | 2147 | id, evsel__name(evsel), ++n); |
adaa18bf | 2148 | } |
ba3d7dee ACM |
2149 | return NULL; |
2150 | } | |
2151 | ||
b8b1033f ACM |
2152 | err = -EINVAL; |
2153 | ||
d21cb73a ACM |
2154 | #ifdef HAVE_SYSCALL_TABLE_SUPPORT |
2155 | if (id > trace->sctbl->syscalls.max_id) { | |
2156 | #else | |
2157 | if (id >= trace->sctbl->syscalls.max_id) { | |
2158 | /* | |
2159 | * With libaudit we don't know beforehand what is the max_id, | |
2160 | * so we let trace__read_syscall_info() figure that out as we | |
2161 | * go on reading syscalls. | |
2162 | */ | |
2163 | err = trace__read_syscall_info(trace, id); | |
2164 | if (err) | |
2165 | #endif | |
ba3d7dee | 2166 | goto out_cant_read; |
d21cb73a | 2167 | } |
ba3d7dee | 2168 | |
30a910d7 ACM |
2169 | if ((trace->syscalls.table == NULL || trace->syscalls.table[id].name == NULL) && |
2170 | (err = trace__read_syscall_info(trace, id)) != 0) | |
ba3d7dee ACM |
2171 | goto out_cant_read; |
2172 | ||
03e9a5d8 | 2173 | if (trace->syscalls.table && trace->syscalls.table[id].nonexistent) |
b8b1033f | 2174 | goto out_cant_read; |
b8b1033f | 2175 | |
ba3d7dee ACM |
2176 | return &trace->syscalls.table[id]; |
2177 | ||
2178 | out_cant_read: | |
bb963e16 | 2179 | if (verbose > 0) { |
5d2bd889 ACM |
2180 | char sbuf[STRERR_BUFSIZE]; |
2181 | fprintf(trace->output, "Problems reading syscall %d: %d (%s)", id, -err, str_error_r(-err, sbuf, sizeof(sbuf))); | |
30a910d7 | 2182 | if (id <= trace->sctbl->syscalls.max_id && trace->syscalls.table[id].name != NULL) |
7c304ee0 ACM |
2183 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); |
2184 | fputs(" information\n", trace->output); | |
2185 | } | |
ba3d7dee ACM |
2186 | return NULL; |
2187 | } | |
2188 | ||
8eded45f ACM |
2189 | struct syscall_stats { |
2190 | struct stats stats; | |
2191 | u64 nr_failures; | |
b88b14db ACM |
2192 | int max_errno; |
2193 | u32 *errnos; | |
8eded45f ACM |
2194 | }; |
2195 | ||
b88b14db ACM |
2196 | static void thread__update_stats(struct thread *thread, struct thread_trace *ttrace, |
2197 | int id, struct perf_sample *sample, long err, bool errno_summary) | |
bf2575c1 DA |
2198 | { |
2199 | struct int_node *inode; | |
8eded45f | 2200 | struct syscall_stats *stats; |
bf2575c1 DA |
2201 | u64 duration = 0; |
2202 | ||
2203 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
2204 | if (inode == NULL) | |
2205 | return; | |
2206 | ||
2207 | stats = inode->priv; | |
2208 | if (stats == NULL) { | |
e3e7572f | 2209 | stats = zalloc(sizeof(*stats)); |
bf2575c1 DA |
2210 | if (stats == NULL) |
2211 | return; | |
8eded45f | 2212 | |
8eded45f | 2213 | init_stats(&stats->stats); |
bf2575c1 DA |
2214 | inode->priv = stats; |
2215 | } | |
2216 | ||
2217 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
2218 | duration = sample->time - ttrace->entry_time; | |
2219 | ||
8eded45f ACM |
2220 | update_stats(&stats->stats, duration); |
2221 | ||
b88b14db | 2222 | if (err < 0) { |
8eded45f | 2223 | ++stats->nr_failures; |
b88b14db ACM |
2224 | |
2225 | if (!errno_summary) | |
2226 | return; | |
2227 | ||
2228 | err = -err; | |
2229 | if (err > stats->max_errno) { | |
2230 | u32 *new_errnos = realloc(stats->errnos, err * sizeof(u32)); | |
2231 | ||
2232 | if (new_errnos) { | |
2233 | memset(new_errnos + stats->max_errno, 0, (err - stats->max_errno) * sizeof(u32)); | |
2234 | } else { | |
2235 | pr_debug("Not enough memory for errno stats for thread \"%s\"(%d/%d), results will be incomplete\n", | |
ee84a303 IR |
2236 | thread__comm_str(thread), thread__pid(thread), |
2237 | thread__tid(thread)); | |
b88b14db ACM |
2238 | return; |
2239 | } | |
2240 | ||
2241 | stats->errnos = new_errnos; | |
2242 | stats->max_errno = err; | |
2243 | } | |
2244 | ||
2245 | ++stats->errnos[err - 1]; | |
2246 | } | |
bf2575c1 DA |
2247 | } |
2248 | ||
522283fe | 2249 | static int trace__printf_interrupted_entry(struct trace *trace) |
e596663e ACM |
2250 | { |
2251 | struct thread_trace *ttrace; | |
e596663e | 2252 | size_t printed; |
172bf02d | 2253 | int len; |
e596663e | 2254 | |
0a6545bd | 2255 | if (trace->failure_only || trace->current == NULL) |
e596663e ACM |
2256 | return 0; |
2257 | ||
2258 | ttrace = thread__priv(trace->current); | |
2259 | ||
2260 | if (!ttrace->entry_pending) | |
2261 | return 0; | |
2262 | ||
522283fe | 2263 | printed = trace__fprintf_entry_head(trace, trace->current, 0, false, ttrace->entry_time, trace->output); |
172bf02d ACM |
2264 | printed += len = fprintf(trace->output, "%s)", ttrace->entry_str); |
2265 | ||
2266 | if (len < trace->args_alignment - 4) | |
2267 | printed += fprintf(trace->output, "%-*s", trace->args_alignment - 4 - len, " "); | |
e596663e | 2268 | |
172bf02d ACM |
2269 | printed += fprintf(trace->output, " ...\n"); |
2270 | ||
2271 | ttrace->entry_pending = false; | |
5067a8cd ACM |
2272 | ++trace->nr_events_printed; |
2273 | ||
e596663e ACM |
2274 | return printed; |
2275 | } | |
2276 | ||
32dcd021 | 2277 | static int trace__fprintf_sample(struct trace *trace, struct evsel *evsel, |
591421e1 ACM |
2278 | struct perf_sample *sample, struct thread *thread) |
2279 | { | |
2280 | int printed = 0; | |
2281 | ||
2282 | if (trace->print_sample) { | |
2283 | double ts = (double)sample->time / NSEC_PER_MSEC; | |
2284 | ||
2285 | printed += fprintf(trace->output, "%22s %10.3f %s %d/%d [%d]\n", | |
8ab2e96d | 2286 | evsel__name(evsel), ts, |
591421e1 ACM |
2287 | thread__comm_str(thread), |
2288 | sample->pid, sample->tid, sample->cpu); | |
2289 | } | |
2290 | ||
2291 | return printed; | |
2292 | } | |
2293 | ||
b9b6a2ea | 2294 | static void *syscall__augmented_args(struct syscall *sc, struct perf_sample *sample, int *augmented_args_size, int raw_augmented_args_size) |
8a041f86 ACM |
2295 | { |
2296 | void *augmented_args = NULL; | |
cd26ea6d ACM |
2297 | /* |
2298 | * For now with BPF raw_augmented we hook into raw_syscalls:sys_enter | |
b9b6a2ea ACM |
2299 | * and there we get all 6 syscall args plus the tracepoint common fields |
2300 | * that gets calculated at the start and the syscall_nr (another long). | |
2301 | * So we check if that is the case and if so don't look after the | |
2302 | * sc->args_size but always after the full raw_syscalls:sys_enter payload, | |
2303 | * which is fixed. | |
cd26ea6d ACM |
2304 | * |
2305 | * We'll revisit this later to pass s->args_size to the BPF augmenter | |
2306 | * (now tools/perf/examples/bpf/augmented_raw_syscalls.c, so that it | |
2307 | * copies only what we need for each syscall, like what happens when we | |
2308 | * use syscalls:sys_enter_NAME, so that we reduce the kernel/userspace | |
2309 | * traffic to just what is needed for each syscall. | |
2310 | */ | |
b9b6a2ea | 2311 | int args_size = raw_augmented_args_size ?: sc->args_size; |
8a041f86 | 2312 | |
cd26ea6d | 2313 | *augmented_args_size = sample->raw_size - args_size; |
8a041f86 | 2314 | if (*augmented_args_size > 0) |
cd26ea6d | 2315 | augmented_args = sample->raw_data + args_size; |
8a041f86 ACM |
2316 | |
2317 | return augmented_args; | |
2318 | } | |
2319 | ||
f2ebf8ff RM |
2320 | static void syscall__exit(struct syscall *sc) |
2321 | { | |
2322 | if (!sc) | |
2323 | return; | |
2324 | ||
9997d5dd | 2325 | zfree(&sc->arg_fmt); |
f2ebf8ff RM |
2326 | } |
2327 | ||
32dcd021 | 2328 | static int trace__sys_enter(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2329 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
2330 | struct perf_sample *sample) |
2331 | { | |
752fde44 | 2332 | char *msg; |
ba3d7dee | 2333 | void *args; |
4b8a240e | 2334 | int printed = 0; |
2ae3a312 | 2335 | struct thread *thread; |
b91fc39f | 2336 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
db2da3f8 ACM |
2337 | int augmented_args_size = 0; |
2338 | void *augmented_args = NULL; | |
bf2575c1 | 2339 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
2340 | struct thread_trace *ttrace; |
2341 | ||
2342 | if (sc == NULL) | |
2343 | return -1; | |
ba3d7dee | 2344 | |
8fb598e5 | 2345 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 2346 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 2347 | if (ttrace == NULL) |
b91fc39f | 2348 | goto out_put; |
ba3d7dee | 2349 | |
591421e1 ACM |
2350 | trace__fprintf_sample(trace, evsel, sample, thread); |
2351 | ||
77170988 | 2352 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
2353 | |
2354 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 2355 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 2356 | if (!ttrace->entry_str) |
b91fc39f | 2357 | goto out_put; |
752fde44 ACM |
2358 | } |
2359 | ||
5cf9c84e | 2360 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
522283fe | 2361 | trace__printf_interrupted_entry(trace); |
db2da3f8 ACM |
2362 | /* |
2363 | * If this is raw_syscalls.sys_enter, then it always comes with the 6 possible | |
2364 | * arguments, even if the syscall being handled, say "openat", uses only 4 arguments | |
2365 | * this breaks syscall__augmented_args() check for augmented args, as we calculate | |
2366 | * syscall->args_size using each syscalls:sys_enter_NAME tracefs format file, | |
2367 | * so when handling, say the openat syscall, we end up getting 6 args for the | |
2368 | * raw_syscalls:sys_enter event, when we expected just 4, we end up mistakenly | |
2369 | * thinking that the extra 2 u64 args are the augmented filename, so just check | |
2370 | * here and avoid using augmented syscalls when the evsel is the raw_syscalls one. | |
2371 | */ | |
2372 | if (evsel != trace->syscalls.events.sys_enter) | |
b9b6a2ea | 2373 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
752fde44 ACM |
2374 | ttrace->entry_time = sample->time; |
2375 | msg = ttrace->entry_str; | |
e4d44e83 | 2376 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 2377 | |
e4d44e83 | 2378 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
db2da3f8 | 2379 | args, augmented_args, augmented_args_size, trace, thread); |
752fde44 | 2380 | |
5089f20e | 2381 | if (sc->is_exit) { |
0a6545bd | 2382 | if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) { |
4b8a240e ACM |
2383 | int alignment = 0; |
2384 | ||
fd2b2975 | 2385 | trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output); |
4b8a240e ACM |
2386 | printed = fprintf(trace->output, "%s)", ttrace->entry_str); |
2387 | if (trace->args_alignment > printed) | |
2388 | alignment = trace->args_alignment - printed; | |
2389 | fprintf(trace->output, "%*s= ?\n", alignment, " "); | |
ae9ed035 | 2390 | } |
7f4f8001 | 2391 | } else { |
752fde44 | 2392 | ttrace->entry_pending = true; |
7f4f8001 ACM |
2393 | /* See trace__vfs_getname & trace__sys_exit */ |
2394 | ttrace->filename.pending_open = false; | |
2395 | } | |
ba3d7dee | 2396 | |
f3b623b8 ACM |
2397 | if (trace->current != thread) { |
2398 | thread__put(trace->current); | |
2399 | trace->current = thread__get(thread); | |
2400 | } | |
b91fc39f ACM |
2401 | err = 0; |
2402 | out_put: | |
2403 | thread__put(thread); | |
2404 | return err; | |
ba3d7dee ACM |
2405 | } |
2406 | ||
32dcd021 | 2407 | static int trace__fprintf_sys_enter(struct trace *trace, struct evsel *evsel, |
a98392bb ACM |
2408 | struct perf_sample *sample) |
2409 | { | |
a98392bb ACM |
2410 | struct thread_trace *ttrace; |
2411 | struct thread *thread; | |
f3acd886 ACM |
2412 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
2413 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
a98392bb | 2414 | char msg[1024]; |
7a983a0f ACM |
2415 | void *args, *augmented_args = NULL; |
2416 | int augmented_args_size; | |
a98392bb | 2417 | |
a98392bb ACM |
2418 | if (sc == NULL) |
2419 | return -1; | |
2420 | ||
2421 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
2422 | ttrace = thread__trace(thread, trace->output); | |
2423 | /* | |
2424 | * We need to get ttrace just to make sure it is there when syscall__scnprintf_args() | |
2425 | * and the rest of the beautifiers accessing it via struct syscall_arg touches it. | |
2426 | */ | |
2427 | if (ttrace == NULL) | |
2428 | goto out_put; | |
2429 | ||
f3acd886 | 2430 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
b9b6a2ea | 2431 | augmented_args = syscall__augmented_args(sc, sample, &augmented_args_size, trace->raw_augmented_syscalls_args_size); |
7a983a0f | 2432 | syscall__scnprintf_args(sc, msg, sizeof(msg), args, augmented_args, augmented_args_size, trace, thread); |
a98392bb ACM |
2433 | fprintf(trace->output, "%s", msg); |
2434 | err = 0; | |
2435 | out_put: | |
2436 | thread__put(thread); | |
2437 | return err; | |
2438 | } | |
2439 | ||
32dcd021 | 2440 | static int trace__resolve_callchain(struct trace *trace, struct evsel *evsel, |
5cf9c84e ACM |
2441 | struct perf_sample *sample, |
2442 | struct callchain_cursor *cursor) | |
202ff968 ACM |
2443 | { |
2444 | struct addr_location al; | |
1fc632ce JO |
2445 | int max_stack = evsel->core.attr.sample_max_stack ? |
2446 | evsel->core.attr.sample_max_stack : | |
3a9e9a47 | 2447 | trace->max_stack; |
0dd5041c | 2448 | int err = -1; |
5cf9c84e | 2449 | |
0dd5041c | 2450 | addr_location__init(&al); |
4291bf5c | 2451 | if (machine__resolve(trace->host, &al, sample) < 0) |
0dd5041c | 2452 | goto out; |
5cf9c84e | 2453 | |
4291bf5c | 2454 | err = thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, max_stack); |
0dd5041c IR |
2455 | out: |
2456 | addr_location__exit(&al); | |
4291bf5c | 2457 | return err; |
5cf9c84e ACM |
2458 | } |
2459 | ||
2460 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
2461 | { | |
202ff968 | 2462 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
2463 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
2464 | EVSEL__PRINT_DSO | | |
2465 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 2466 | |
8ab12a20 | 2467 | return sample__fprintf_callchain(sample, 38, print_opts, get_tls_callchain_cursor(), symbol_conf.bt_stop_list, trace->output); |
202ff968 ACM |
2468 | } |
2469 | ||
32dcd021 | 2470 | static const char *errno_to_name(struct evsel *evsel, int err) |
092bd3cd | 2471 | { |
6e6d1d65 | 2472 | struct perf_env *env = evsel__env(evsel); |
092bd3cd | 2473 | |
54373b5d | 2474 | return perf_env__arch_strerrno(env, err); |
092bd3cd HB |
2475 | } |
2476 | ||
32dcd021 | 2477 | static int trace__sys_exit(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2478 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
2479 | struct perf_sample *sample) |
2480 | { | |
2c82c3ad | 2481 | long ret; |
60c907ab | 2482 | u64 duration = 0; |
fd2b2975 | 2483 | bool duration_calculated = false; |
2ae3a312 | 2484 | struct thread *thread; |
4b8a240e ACM |
2485 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0, printed = 0; |
2486 | int alignment = trace->args_alignment; | |
bf2575c1 | 2487 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
2488 | struct thread_trace *ttrace; |
2489 | ||
2490 | if (sc == NULL) | |
2491 | return -1; | |
ba3d7dee | 2492 | |
8fb598e5 | 2493 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 2494 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 2495 | if (ttrace == NULL) |
b91fc39f | 2496 | goto out_put; |
ba3d7dee | 2497 | |
591421e1 ACM |
2498 | trace__fprintf_sample(trace, evsel, sample, thread); |
2499 | ||
77170988 | 2500 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 2501 | |
8eded45f | 2502 | if (trace->summary) |
b88b14db | 2503 | thread__update_stats(thread, ttrace, id, sample, ret, trace->errno_summary); |
8eded45f | 2504 | |
79d725cd | 2505 | if (!trace->fd_path_disabled && sc->is_open && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
2506 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
2507 | ttrace->filename.pending_open = false; | |
c522739d ACM |
2508 | ++trace->stats.vfs_getname; |
2509 | } | |
2510 | ||
ae9ed035 | 2511 | if (ttrace->entry_time) { |
60c907ab | 2512 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
2513 | if (trace__filter_duration(trace, duration)) |
2514 | goto out; | |
fd2b2975 | 2515 | duration_calculated = true; |
ae9ed035 ACM |
2516 | } else if (trace->duration_filter) |
2517 | goto out; | |
60c907ab | 2518 | |
5cf9c84e | 2519 | if (sample->callchain) { |
8ab12a20 IR |
2520 | struct callchain_cursor *cursor = get_tls_callchain_cursor(); |
2521 | ||
2522 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, cursor); | |
5cf9c84e | 2523 | if (callchain_ret == 0) { |
8ab12a20 | 2524 | if (cursor->nr < trace->min_stack) |
5cf9c84e ACM |
2525 | goto out; |
2526 | callchain_ret = 1; | |
2527 | } | |
2528 | } | |
2529 | ||
0a6545bd | 2530 | if (trace->summary_only || (ret >= 0 && trace->failure_only)) |
fd2eabaf DA |
2531 | goto out; |
2532 | ||
fd2b2975 | 2533 | trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output); |
752fde44 ACM |
2534 | |
2535 | if (ttrace->entry_pending) { | |
4b8a240e | 2536 | printed = fprintf(trace->output, "%s", ttrace->entry_str); |
752fde44 | 2537 | } else { |
ac6e022c | 2538 | printed += fprintf(trace->output, " ... ["); |
c24ff998 | 2539 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); |
ac6e022c ACM |
2540 | printed += 9; |
2541 | printed += fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
2542 | } |
2543 | ||
4b8a240e ACM |
2544 | printed++; /* the closing ')' */ |
2545 | ||
2546 | if (alignment > printed) | |
2547 | alignment -= printed; | |
2548 | else | |
2549 | alignment = 0; | |
2550 | ||
2551 | fprintf(trace->output, ")%*s= ", alignment, " "); | |
2552 | ||
da3c9a44 | 2553 | if (sc->fmt == NULL) { |
1f63139c ACM |
2554 | if (ret < 0) |
2555 | goto errno_print; | |
da3c9a44 | 2556 | signed_print: |
4b8a240e | 2557 | fprintf(trace->output, "%ld", ret); |
1f63139c ACM |
2558 | } else if (ret < 0) { |
2559 | errno_print: { | |
942a91ed | 2560 | char bf[STRERR_BUFSIZE]; |
c8b5f2c9 | 2561 | const char *emsg = str_error_r(-ret, bf, sizeof(bf)), |
092bd3cd | 2562 | *e = errno_to_name(evsel, -ret); |
ba3d7dee | 2563 | |
2c83dfae | 2564 | fprintf(trace->output, "-1 %s (%s)", e, emsg); |
1f63139c | 2565 | } |
da3c9a44 | 2566 | } else if (ret == 0 && sc->fmt->timeout) |
2c83dfae | 2567 | fprintf(trace->output, "0 (Timeout)"); |
84486caa ACM |
2568 | else if (ttrace->ret_scnprintf) { |
2569 | char bf[1024]; | |
7ee57434 ACM |
2570 | struct syscall_arg arg = { |
2571 | .val = ret, | |
2572 | .thread = thread, | |
2573 | .trace = trace, | |
2574 | }; | |
2575 | ttrace->ret_scnprintf(bf, sizeof(bf), &arg); | |
84486caa | 2576 | ttrace->ret_scnprintf = NULL; |
4b8a240e | 2577 | fprintf(trace->output, "%s", bf); |
84486caa | 2578 | } else if (sc->fmt->hexret) |
4b8a240e | 2579 | fprintf(trace->output, "%#lx", ret); |
11c8e39f ACM |
2580 | else if (sc->fmt->errpid) { |
2581 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
2582 | ||
2583 | if (child != NULL) { | |
4b8a240e | 2584 | fprintf(trace->output, "%ld", ret); |
ee84a303 | 2585 | if (thread__comm_set(child)) |
11c8e39f ACM |
2586 | fprintf(trace->output, " (%s)", thread__comm_str(child)); |
2587 | thread__put(child); | |
2588 | } | |
2589 | } else | |
da3c9a44 | 2590 | goto signed_print; |
ba3d7dee | 2591 | |
c24ff998 | 2592 | fputc('\n', trace->output); |
566a0885 | 2593 | |
5067a8cd ACM |
2594 | /* |
2595 | * We only consider an 'event' for the sake of --max-events a non-filtered | |
2596 | * sys_enter + sys_exit and other tracepoint events. | |
2597 | */ | |
2598 | if (++trace->nr_events_printed == trace->max_events && trace->max_events != ULONG_MAX) | |
2599 | interrupted = true; | |
2600 | ||
5cf9c84e ACM |
2601 | if (callchain_ret > 0) |
2602 | trace__fprintf_callchain(trace, sample); | |
2603 | else if (callchain_ret < 0) | |
8ab2e96d | 2604 | pr_err("Problem processing %s callchain, skipping...\n", evsel__name(evsel)); |
ae9ed035 | 2605 | out: |
752fde44 | 2606 | ttrace->entry_pending = false; |
b91fc39f ACM |
2607 | err = 0; |
2608 | out_put: | |
2609 | thread__put(thread); | |
2610 | return err; | |
ba3d7dee ACM |
2611 | } |
2612 | ||
32dcd021 | 2613 | static int trace__vfs_getname(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2614 | union perf_event *event __maybe_unused, |
c522739d ACM |
2615 | struct perf_sample *sample) |
2616 | { | |
f994592d ACM |
2617 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
2618 | struct thread_trace *ttrace; | |
2619 | size_t filename_len, entry_str_len, to_move; | |
2620 | ssize_t remaining_space; | |
2621 | char *pos; | |
efc0cdc9 | 2622 | const char *filename = evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
2623 | |
2624 | if (!thread) | |
2625 | goto out; | |
2626 | ||
2627 | ttrace = thread__priv(thread); | |
2628 | if (!ttrace) | |
ef65e96e | 2629 | goto out_put; |
f994592d | 2630 | |
7f4f8001 | 2631 | filename_len = strlen(filename); |
39f0e7a8 | 2632 | if (filename_len == 0) |
ef65e96e | 2633 | goto out_put; |
7f4f8001 ACM |
2634 | |
2635 | if (ttrace->filename.namelen < filename_len) { | |
2636 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
2637 | ||
2638 | if (f == NULL) | |
ef65e96e | 2639 | goto out_put; |
7f4f8001 ACM |
2640 | |
2641 | ttrace->filename.namelen = filename_len; | |
2642 | ttrace->filename.name = f; | |
2643 | } | |
2644 | ||
2645 | strcpy(ttrace->filename.name, filename); | |
2646 | ttrace->filename.pending_open = true; | |
2647 | ||
f994592d | 2648 | if (!ttrace->filename.ptr) |
ef65e96e | 2649 | goto out_put; |
f994592d ACM |
2650 | |
2651 | entry_str_len = strlen(ttrace->entry_str); | |
2652 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
2653 | if (remaining_space <= 0) | |
ef65e96e | 2654 | goto out_put; |
f994592d | 2655 | |
f994592d ACM |
2656 | if (filename_len > (size_t)remaining_space) { |
2657 | filename += filename_len - remaining_space; | |
2658 | filename_len = remaining_space; | |
2659 | } | |
2660 | ||
2661 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
2662 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
2663 | memmove(pos + filename_len, pos, to_move); | |
2664 | memcpy(pos, filename, filename_len); | |
2665 | ||
2666 | ttrace->filename.ptr = 0; | |
2667 | ttrace->filename.entry_str_pos = 0; | |
ef65e96e ACM |
2668 | out_put: |
2669 | thread__put(thread); | |
f994592d | 2670 | out: |
c522739d ACM |
2671 | return 0; |
2672 | } | |
2673 | ||
32dcd021 | 2674 | static int trace__sched_stat_runtime(struct trace *trace, struct evsel *evsel, |
0c82adcf | 2675 | union perf_event *event __maybe_unused, |
1302d88e ACM |
2676 | struct perf_sample *sample) |
2677 | { | |
efc0cdc9 | 2678 | u64 runtime = evsel__intval(evsel, sample, "runtime"); |
1302d88e | 2679 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; |
8fb598e5 | 2680 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
2681 | sample->pid, |
2682 | sample->tid); | |
c24ff998 | 2683 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
2684 | |
2685 | if (ttrace == NULL) | |
2686 | goto out_dump; | |
2687 | ||
2688 | ttrace->runtime_ms += runtime_ms; | |
2689 | trace->runtime_ms += runtime_ms; | |
ef65e96e | 2690 | out_put: |
b91fc39f | 2691 | thread__put(thread); |
1302d88e ACM |
2692 | return 0; |
2693 | ||
2694 | out_dump: | |
c24ff998 | 2695 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e | 2696 | evsel->name, |
efc0cdc9 ACM |
2697 | evsel__strval(evsel, sample, "comm"), |
2698 | (pid_t)evsel__intval(evsel, sample, "pid"), | |
1302d88e | 2699 | runtime, |
efc0cdc9 | 2700 | evsel__intval(evsel, sample, "vruntime")); |
ef65e96e | 2701 | goto out_put; |
1302d88e ACM |
2702 | } |
2703 | ||
923d0c9a ACM |
2704 | static int bpf_output__printer(enum binary_printer_ops op, |
2705 | unsigned int val, void *extra __maybe_unused, FILE *fp) | |
1d6c9407 | 2706 | { |
1d6c9407 WN |
2707 | unsigned char ch = (unsigned char)val; |
2708 | ||
2709 | switch (op) { | |
2710 | case BINARY_PRINT_CHAR_DATA: | |
923d0c9a | 2711 | return fprintf(fp, "%c", isprint(ch) ? ch : '.'); |
1d6c9407 WN |
2712 | case BINARY_PRINT_DATA_BEGIN: |
2713 | case BINARY_PRINT_LINE_BEGIN: | |
2714 | case BINARY_PRINT_ADDR: | |
2715 | case BINARY_PRINT_NUM_DATA: | |
2716 | case BINARY_PRINT_NUM_PAD: | |
2717 | case BINARY_PRINT_SEP: | |
2718 | case BINARY_PRINT_CHAR_PAD: | |
2719 | case BINARY_PRINT_LINE_END: | |
2720 | case BINARY_PRINT_DATA_END: | |
2721 | default: | |
2722 | break; | |
2723 | } | |
923d0c9a ACM |
2724 | |
2725 | return 0; | |
1d6c9407 WN |
2726 | } |
2727 | ||
2728 | static void bpf_output__fprintf(struct trace *trace, | |
2729 | struct perf_sample *sample) | |
2730 | { | |
923d0c9a ACM |
2731 | binary__fprintf(sample->raw_data, sample->raw_size, 8, |
2732 | bpf_output__printer, NULL, trace->output); | |
5067a8cd | 2733 | ++trace->nr_events_printed; |
1d6c9407 WN |
2734 | } |
2735 | ||
f11b2803 ACM |
2736 | static size_t trace__fprintf_tp_fields(struct trace *trace, struct evsel *evsel, struct perf_sample *sample, |
2737 | struct thread *thread, void *augmented_args, int augmented_args_size) | |
2738 | { | |
2739 | char bf[2048]; | |
2740 | size_t size = sizeof(bf); | |
2741 | struct tep_format_field *field = evsel->tp_format->format.fields; | |
fecd9907 | 2742 | struct syscall_arg_fmt *arg = __evsel__syscall_arg_fmt(evsel); |
f11b2803 ACM |
2743 | size_t printed = 0; |
2744 | unsigned long val; | |
2745 | u8 bit = 1; | |
2746 | struct syscall_arg syscall_arg = { | |
2747 | .augmented = { | |
2748 | .size = augmented_args_size, | |
2749 | .args = augmented_args, | |
2750 | }, | |
2751 | .idx = 0, | |
2752 | .mask = 0, | |
2753 | .trace = trace, | |
2754 | .thread = thread, | |
2755 | .show_string_prefix = trace->show_string_prefix, | |
2756 | }; | |
2757 | ||
2758 | for (; field && arg; field = field->next, ++syscall_arg.idx, bit <<= 1, ++arg) { | |
2759 | if (syscall_arg.mask & bit) | |
2760 | continue; | |
2761 | ||
c5e006cd | 2762 | syscall_arg.len = 0; |
f11b2803 | 2763 | syscall_arg.fmt = arg; |
c5e006cd ACM |
2764 | if (field->flags & TEP_FIELD_IS_ARRAY) { |
2765 | int offset = field->offset; | |
2766 | ||
2767 | if (field->flags & TEP_FIELD_IS_DYNAMIC) { | |
2768 | offset = format_field__intval(field, sample, evsel->needs_swap); | |
2769 | syscall_arg.len = offset >> 16; | |
2770 | offset &= 0xffff; | |
1634bad3 | 2771 | if (tep_field_is_relative(field->flags)) |
7c689c83 | 2772 | offset += field->offset + field->size; |
c5e006cd ACM |
2773 | } |
2774 | ||
2775 | val = (uintptr_t)(sample->raw_data + offset); | |
2776 | } else | |
f11b2803 ACM |
2777 | val = format_field__intval(field, sample, evsel->needs_swap); |
2778 | /* | |
2779 | * Some syscall args need some mask, most don't and | |
2780 | * return val untouched. | |
2781 | */ | |
2782 | val = syscall_arg_fmt__mask_val(arg, &syscall_arg, val); | |
2783 | ||
2784 | /* | |
2785 | * Suppress this argument if its value is zero and | |
632f5c22 | 2786 | * we don't have a string associated in an |
f11b2803 ACM |
2787 | * strarray for it. |
2788 | */ | |
2789 | if (val == 0 && | |
2790 | !trace->show_zeros && | |
2791 | !((arg->show_zero || | |
2792 | arg->scnprintf == SCA_STRARRAY || | |
2793 | arg->scnprintf == SCA_STRARRAYS) && | |
2794 | arg->parm)) | |
2795 | continue; | |
2796 | ||
2797 | printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : ""); | |
2798 | ||
888964a0 | 2799 | if (trace->show_arg_names) |
f11b2803 ACM |
2800 | printed += scnprintf(bf + printed, size - printed, "%s: ", field->name); |
2801 | ||
2802 | printed += syscall_arg_fmt__scnprintf_val(arg, bf + printed, size - printed, &syscall_arg, val); | |
2803 | } | |
2804 | ||
2805 | return printed + fprintf(trace->output, "%s", bf); | |
2806 | } | |
2807 | ||
32dcd021 | 2808 | static int trace__event_handler(struct trace *trace, struct evsel *evsel, |
14a052df ACM |
2809 | union perf_event *event __maybe_unused, |
2810 | struct perf_sample *sample) | |
2811 | { | |
a9c5e6c1 | 2812 | struct thread *thread; |
7ad35615 | 2813 | int callchain_ret = 0; |
a9c5e6c1 ACM |
2814 | /* |
2815 | * Check if we called perf_evsel__disable(evsel) due to, for instance, | |
2816 | * this event's max_events having been hit and this is an entry coming | |
2817 | * from the ring buffer that we should discard, since the max events | |
2818 | * have already been considered/printed. | |
2819 | */ | |
2820 | if (evsel->disabled) | |
2821 | return 0; | |
2822 | ||
2823 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
7ad35615 ACM |
2824 | |
2825 | if (sample->callchain) { | |
8ab12a20 IR |
2826 | struct callchain_cursor *cursor = get_tls_callchain_cursor(); |
2827 | ||
2828 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, cursor); | |
7ad35615 | 2829 | if (callchain_ret == 0) { |
8ab12a20 | 2830 | if (cursor->nr < trace->min_stack) |
7ad35615 ACM |
2831 | goto out; |
2832 | callchain_ret = 1; | |
2833 | } | |
2834 | } | |
2835 | ||
522283fe | 2836 | trace__printf_interrupted_entry(trace); |
14a052df | 2837 | trace__fprintf_tstamp(trace, sample->time, trace->output); |
0808921a | 2838 | |
42e4a52d | 2839 | if (trace->trace_syscalls && trace->show_duration) |
0808921a ACM |
2840 | fprintf(trace->output, "( ): "); |
2841 | ||
c4191e55 ACM |
2842 | if (thread) |
2843 | trace__fprintf_comm_tid(trace, thread, trace->output); | |
2844 | ||
5e6da6be | 2845 | if (evsel == trace->syscalls.events.bpf_output) { |
1cdf618f ACM |
2846 | int id = perf_evsel__sc_tp_uint(evsel, id, sample); |
2847 | struct syscall *sc = trace__syscall_info(trace, evsel, id); | |
2848 | ||
2849 | if (sc) { | |
c4191e55 ACM |
2850 | fprintf(trace->output, "%s(", sc->name); |
2851 | trace__fprintf_sys_enter(trace, evsel, sample); | |
2852 | fputc(')', trace->output); | |
2853 | goto newline; | |
1cdf618f ACM |
2854 | } |
2855 | ||
2856 | /* | |
2857 | * XXX: Not having the associated syscall info or not finding/adding | |
2858 | * the thread should never happen, but if it does... | |
2859 | * fall thru and print it as a bpf_output event. | |
2860 | */ | |
2861 | } | |
2862 | ||
311baaf9 | 2863 | fprintf(trace->output, "%s(", evsel->name); |
14a052df | 2864 | |
c754c382 | 2865 | if (evsel__is_bpf_output(evsel)) { |
1cdf618f | 2866 | bpf_output__fprintf(trace, sample); |
1d6c9407 | 2867 | } else if (evsel->tp_format) { |
a98392bb ACM |
2868 | if (strncmp(evsel->tp_format->name, "sys_enter_", 10) || |
2869 | trace__fprintf_sys_enter(trace, evsel, sample)) { | |
f11b2803 ACM |
2870 | if (trace->libtraceevent_print) { |
2871 | event_format__fprintf(evsel->tp_format, sample->cpu, | |
2872 | sample->raw_data, sample->raw_size, | |
2873 | trace->output); | |
2874 | } else { | |
2875 | trace__fprintf_tp_fields(trace, evsel, sample, thread, NULL, 0); | |
2876 | } | |
a98392bb | 2877 | } |
14a052df ACM |
2878 | } |
2879 | ||
1cdf618f | 2880 | newline: |
311baaf9 | 2881 | fprintf(trace->output, ")\n"); |
202ff968 | 2882 | |
7ad35615 ACM |
2883 | if (callchain_ret > 0) |
2884 | trace__fprintf_callchain(trace, sample); | |
2885 | else if (callchain_ret < 0) | |
8ab2e96d | 2886 | pr_err("Problem processing %s callchain, skipping...\n", evsel__name(evsel)); |
db25bf98 ACM |
2887 | |
2888 | ++trace->nr_events_printed; | |
2889 | ||
2890 | if (evsel->max_events != ULONG_MAX && ++evsel->nr_events_printed == evsel->max_events) { | |
2891 | evsel__disable(evsel); | |
2892 | evsel__close(evsel); | |
2893 | } | |
7ad35615 | 2894 | out: |
a937c665 | 2895 | thread__put(thread); |
14a052df ACM |
2896 | return 0; |
2897 | } | |
2898 | ||
598d02c5 SF |
2899 | static void print_location(FILE *f, struct perf_sample *sample, |
2900 | struct addr_location *al, | |
2901 | bool print_dso, bool print_sym) | |
2902 | { | |
2903 | ||
bb963e16 | 2904 | if ((verbose > 0 || print_dso) && al->map) |
63df0e4b | 2905 | fprintf(f, "%s@", map__dso(al->map)->long_name); |
598d02c5 | 2906 | |
bb963e16 | 2907 | if ((verbose > 0 || print_sym) && al->sym) |
4414a3c5 | 2908 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
2909 | al->addr - al->sym->start); |
2910 | else if (al->map) | |
4414a3c5 | 2911 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 2912 | else |
4414a3c5 | 2913 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
2914 | } |
2915 | ||
2916 | static int trace__pgfault(struct trace *trace, | |
32dcd021 | 2917 | struct evsel *evsel, |
473398a2 | 2918 | union perf_event *event __maybe_unused, |
598d02c5 SF |
2919 | struct perf_sample *sample) |
2920 | { | |
2921 | struct thread *thread; | |
598d02c5 SF |
2922 | struct addr_location al; |
2923 | char map_type = 'd'; | |
a2ea67d7 | 2924 | struct thread_trace *ttrace; |
b91fc39f | 2925 | int err = -1; |
1df54290 | 2926 | int callchain_ret = 0; |
598d02c5 | 2927 | |
0dd5041c | 2928 | addr_location__init(&al); |
598d02c5 | 2929 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
1df54290 ACM |
2930 | |
2931 | if (sample->callchain) { | |
8ab12a20 IR |
2932 | struct callchain_cursor *cursor = get_tls_callchain_cursor(); |
2933 | ||
2934 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, cursor); | |
1df54290 | 2935 | if (callchain_ret == 0) { |
8ab12a20 | 2936 | if (cursor->nr < trace->min_stack) |
1df54290 ACM |
2937 | goto out_put; |
2938 | callchain_ret = 1; | |
2939 | } | |
2940 | } | |
2941 | ||
a2ea67d7 SF |
2942 | ttrace = thread__trace(thread, trace->output); |
2943 | if (ttrace == NULL) | |
b91fc39f | 2944 | goto out_put; |
a2ea67d7 | 2945 | |
1fc632ce | 2946 | if (evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) |
a2ea67d7 SF |
2947 | ttrace->pfmaj++; |
2948 | else | |
2949 | ttrace->pfmin++; | |
2950 | ||
2951 | if (trace->summary_only) | |
b91fc39f | 2952 | goto out; |
598d02c5 | 2953 | |
4546263d | 2954 | thread__find_symbol(thread, sample->cpumode, sample->ip, &al); |
598d02c5 | 2955 | |
fd2b2975 | 2956 | trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output); |
598d02c5 SF |
2957 | |
2958 | fprintf(trace->output, "%sfault [", | |
1fc632ce | 2959 | evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? |
598d02c5 SF |
2960 | "maj" : "min"); |
2961 | ||
2962 | print_location(trace->output, sample, &al, false, true); | |
2963 | ||
2964 | fprintf(trace->output, "] => "); | |
2965 | ||
117d3c24 | 2966 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2967 | |
2968 | if (!al.map) { | |
4546263d | 2969 | thread__find_symbol(thread, sample->cpumode, sample->addr, &al); |
598d02c5 SF |
2970 | |
2971 | if (al.map) | |
2972 | map_type = 'x'; | |
2973 | else | |
2974 | map_type = '?'; | |
2975 | } | |
2976 | ||
2977 | print_location(trace->output, sample, &al, true, false); | |
2978 | ||
2979 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 2980 | |
1df54290 ACM |
2981 | if (callchain_ret > 0) |
2982 | trace__fprintf_callchain(trace, sample); | |
2983 | else if (callchain_ret < 0) | |
8ab2e96d | 2984 | pr_err("Problem processing %s callchain, skipping...\n", evsel__name(evsel)); |
5067a8cd ACM |
2985 | |
2986 | ++trace->nr_events_printed; | |
b91fc39f ACM |
2987 | out: |
2988 | err = 0; | |
2989 | out_put: | |
2990 | thread__put(thread); | |
0dd5041c | 2991 | addr_location__exit(&al); |
b91fc39f | 2992 | return err; |
598d02c5 SF |
2993 | } |
2994 | ||
e6001980 | 2995 | static void trace__set_base_time(struct trace *trace, |
32dcd021 | 2996 | struct evsel *evsel, |
e6001980 ACM |
2997 | struct perf_sample *sample) |
2998 | { | |
8a07a809 ACM |
2999 | /* |
3000 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
3001 | * and don't use sample->time unconditionally, we may end up having | |
3002 | * some other event in the future without PERF_SAMPLE_TIME for good | |
3003 | * reason, i.e. we may not be interested in its timestamps, just in | |
3004 | * it taking place, picking some piece of information when it | |
3005 | * appears in our event stream (vfs_getname comes to mind). | |
3006 | */ | |
3007 | if (trace->base_time == 0 && !trace->full_time && | |
1fc632ce | 3008 | (evsel->core.attr.sample_type & PERF_SAMPLE_TIME)) |
e6001980 ACM |
3009 | trace->base_time = sample->time; |
3010 | } | |
3011 | ||
6810fc91 | 3012 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 3013 | union perf_event *event, |
6810fc91 | 3014 | struct perf_sample *sample, |
32dcd021 | 3015 | struct evsel *evsel, |
6810fc91 DA |
3016 | struct machine *machine __maybe_unused) |
3017 | { | |
3018 | struct trace *trace = container_of(tool, struct trace, tool); | |
aa07df6e | 3019 | struct thread *thread; |
6810fc91 DA |
3020 | int err = 0; |
3021 | ||
744a9719 | 3022 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 3023 | |
aa07df6e DA |
3024 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
3025 | if (thread && thread__is_filtered(thread)) | |
ef65e96e | 3026 | goto out; |
bdc89661 | 3027 | |
e6001980 | 3028 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 3029 | |
3160565f DA |
3030 | if (handler) { |
3031 | ++trace->nr_events; | |
0c82adcf | 3032 | handler(trace, evsel, event, sample); |
3160565f | 3033 | } |
ef65e96e ACM |
3034 | out: |
3035 | thread__put(thread); | |
6810fc91 DA |
3036 | return err; |
3037 | } | |
3038 | ||
1e28fe0a | 3039 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
3040 | { |
3041 | unsigned int rec_argc, i, j; | |
3042 | const char **rec_argv; | |
3043 | const char * const record_args[] = { | |
3044 | "record", | |
3045 | "-R", | |
3046 | "-m", "1024", | |
3047 | "-c", "1", | |
5e2485b1 | 3048 | }; |
7fbfe22c ACM |
3049 | pid_t pid = getpid(); |
3050 | char *filter = asprintf__tp_filter_pids(1, &pid); | |
1e28fe0a SF |
3051 | const char * const sc_args[] = { "-e", }; |
3052 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
3053 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
3054 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
3055 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
3056 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
7fbfe22c | 3057 | int err = -1; |
1e28fe0a | 3058 | |
7fbfe22c ACM |
3059 | /* +3 is for the event string below and the pid filter */ |
3060 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 3 + | |
1e28fe0a | 3061 | majpf_args_nr + minpf_args_nr + argc; |
5e2485b1 DA |
3062 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
3063 | ||
7fbfe22c ACM |
3064 | if (rec_argv == NULL || filter == NULL) |
3065 | goto out_free; | |
5e2485b1 | 3066 | |
1e28fe0a | 3067 | j = 0; |
5e2485b1 | 3068 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
3069 | rec_argv[j++] = record_args[i]; |
3070 | ||
e281a960 SF |
3071 | if (trace->trace_syscalls) { |
3072 | for (i = 0; i < sc_args_nr; i++) | |
3073 | rec_argv[j++] = sc_args[i]; | |
3074 | ||
3075 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
3076 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
3077 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
3078 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
3079 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
3080 | else { | |
3081 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
7fbfe22c | 3082 | goto out_free; |
e281a960 | 3083 | } |
9aca7f17 | 3084 | } |
9aca7f17 | 3085 | |
7fbfe22c ACM |
3086 | rec_argv[j++] = "--filter"; |
3087 | rec_argv[j++] = filter; | |
3088 | ||
1e28fe0a SF |
3089 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
3090 | for (i = 0; i < majpf_args_nr; i++) | |
3091 | rec_argv[j++] = majpf_args[i]; | |
3092 | ||
3093 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
3094 | for (i = 0; i < minpf_args_nr; i++) | |
3095 | rec_argv[j++] = minpf_args[i]; | |
3096 | ||
3097 | for (i = 0; i < (unsigned int)argc; i++) | |
3098 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 3099 | |
7fbfe22c ACM |
3100 | err = cmd_record(j, rec_argv); |
3101 | out_free: | |
3102 | free(filter); | |
3103 | free(rec_argv); | |
3104 | return err; | |
5e2485b1 DA |
3105 | } |
3106 | ||
bf2575c1 DA |
3107 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
3108 | ||
a1cf3a75 | 3109 | static bool evlist__add_vfs_getname(struct evlist *evlist) |
c522739d | 3110 | { |
6ab3bc24 | 3111 | bool found = false; |
32dcd021 | 3112 | struct evsel *evsel, *tmp; |
a910e466 IR |
3113 | struct parse_events_error err; |
3114 | int ret; | |
8dd2a131 | 3115 | |
07eafd4e | 3116 | parse_events_error__init(&err); |
a910e466 | 3117 | ret = parse_events(evlist, "probe:vfs_getname*", &err); |
07eafd4e IR |
3118 | parse_events_error__exit(&err); |
3119 | if (ret) | |
08c98776 | 3120 | return false; |
c522739d | 3121 | |
6ab3bc24 | 3122 | evlist__for_each_entry_safe(evlist, evsel, tmp) { |
8ab2e96d | 3123 | if (!strstarts(evsel__name(evsel), "probe:vfs_getname")) |
6ab3bc24 ACM |
3124 | continue; |
3125 | ||
efc0cdc9 | 3126 | if (evsel__field(evsel, "pathname")) { |
6ab3bc24 ACM |
3127 | evsel->handler = trace__vfs_getname; |
3128 | found = true; | |
3129 | continue; | |
3130 | } | |
3131 | ||
b27c4ece | 3132 | list_del_init(&evsel->core.node); |
6ab3bc24 | 3133 | evsel->evlist = NULL; |
5eb2dd2a | 3134 | evsel__delete(evsel); |
c522739d ACM |
3135 | } |
3136 | ||
6ab3bc24 | 3137 | return found; |
c522739d ACM |
3138 | } |
3139 | ||
8f6725a2 | 3140 | static struct evsel *evsel__new_pgfault(u64 config) |
598d02c5 | 3141 | { |
32dcd021 | 3142 | struct evsel *evsel; |
598d02c5 SF |
3143 | struct perf_event_attr attr = { |
3144 | .type = PERF_TYPE_SOFTWARE, | |
3145 | .mmap_data = 1, | |
598d02c5 SF |
3146 | }; |
3147 | ||
3148 | attr.config = config; | |
0524798c | 3149 | attr.sample_period = 1; |
598d02c5 SF |
3150 | |
3151 | event_attr_init(&attr); | |
3152 | ||
365c3ae7 | 3153 | evsel = evsel__new(&attr); |
0ae537cb ACM |
3154 | if (evsel) |
3155 | evsel->handler = trace__pgfault; | |
598d02c5 | 3156 | |
0ae537cb | 3157 | return evsel; |
598d02c5 SF |
3158 | } |
3159 | ||
3cb4d5e0 RM |
3160 | static void evlist__free_syscall_tp_fields(struct evlist *evlist) |
3161 | { | |
3162 | struct evsel *evsel; | |
3163 | ||
3164 | evlist__for_each_entry(evlist, evsel) { | |
7962ef13 ACM |
3165 | evsel_trace__delete(evsel->priv); |
3166 | evsel->priv = NULL; | |
3cb4d5e0 RM |
3167 | } |
3168 | } | |
3169 | ||
ddbb1b13 ACM |
3170 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
3171 | { | |
3172 | const u32 type = event->header.type; | |
32dcd021 | 3173 | struct evsel *evsel; |
ddbb1b13 | 3174 | |
ddbb1b13 ACM |
3175 | if (type != PERF_RECORD_SAMPLE) { |
3176 | trace__process_event(trace, trace->host, event, sample); | |
3177 | return; | |
3178 | } | |
3179 | ||
3ccf8a7b | 3180 | evsel = evlist__id2evsel(trace->evlist, sample->id); |
ddbb1b13 ACM |
3181 | if (evsel == NULL) { |
3182 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
3183 | return; | |
3184 | } | |
3185 | ||
22ac4318 ACM |
3186 | if (evswitch__discard(&trace->evswitch, evsel)) |
3187 | return; | |
3188 | ||
e6001980 ACM |
3189 | trace__set_base_time(trace, evsel, sample); |
3190 | ||
1fc632ce | 3191 | if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT && |
ddbb1b13 ACM |
3192 | sample->raw_data == NULL) { |
3193 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
8ab2e96d | 3194 | evsel__name(evsel), sample->tid, |
ddbb1b13 ACM |
3195 | sample->cpu, sample->raw_size); |
3196 | } else { | |
3197 | tracepoint_handler handler = evsel->handler; | |
3198 | handler(trace, evsel, event, sample); | |
3199 | } | |
5067a8cd ACM |
3200 | |
3201 | if (trace->nr_events_printed >= trace->max_events && trace->max_events != ULONG_MAX) | |
3202 | interrupted = true; | |
ddbb1b13 ACM |
3203 | } |
3204 | ||
c27366f0 ACM |
3205 | static int trace__add_syscall_newtp(struct trace *trace) |
3206 | { | |
3207 | int ret = -1; | |
63503dba | 3208 | struct evlist *evlist = trace->evlist; |
32dcd021 | 3209 | struct evsel *sys_enter, *sys_exit; |
c27366f0 | 3210 | |
63f11c80 | 3211 | sys_enter = perf_evsel__raw_syscall_newtp("sys_enter", trace__sys_enter); |
c27366f0 ACM |
3212 | if (sys_enter == NULL) |
3213 | goto out; | |
3214 | ||
3215 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
3216 | goto out_delete_sys_enter; | |
3217 | ||
63f11c80 | 3218 | sys_exit = perf_evsel__raw_syscall_newtp("sys_exit", trace__sys_exit); |
c27366f0 ACM |
3219 | if (sys_exit == NULL) |
3220 | goto out_delete_sys_enter; | |
3221 | ||
3222 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
3223 | goto out_delete_sys_exit; | |
3224 | ||
6ec17b4e ACM |
3225 | evsel__config_callchain(sys_enter, &trace->opts, &callchain_param); |
3226 | evsel__config_callchain(sys_exit, &trace->opts, &callchain_param); | |
08e26396 | 3227 | |
a1cf3a75 JO |
3228 | evlist__add(evlist, sys_enter); |
3229 | evlist__add(evlist, sys_exit); | |
c27366f0 | 3230 | |
2ddd5c04 | 3231 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
3232 | /* |
3233 | * We're interested only in the user space callchain | |
3234 | * leading to the syscall, allow overriding that for | |
3235 | * debugging reasons using --kernel_syscall_callchains | |
3236 | */ | |
1fc632ce | 3237 | sys_exit->core.attr.exclude_callchain_kernel = 1; |
44621819 ACM |
3238 | } |
3239 | ||
8b3ce757 ACM |
3240 | trace->syscalls.events.sys_enter = sys_enter; |
3241 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
3242 | |
3243 | ret = 0; | |
3244 | out: | |
3245 | return ret; | |
3246 | ||
3247 | out_delete_sys_exit: | |
5eb2dd2a | 3248 | evsel__delete_priv(sys_exit); |
c27366f0 | 3249 | out_delete_sys_enter: |
5eb2dd2a | 3250 | evsel__delete_priv(sys_enter); |
c27366f0 ACM |
3251 | goto out; |
3252 | } | |
3253 | ||
246fbe03 | 3254 | static int trace__set_ev_qualifier_tp_filter(struct trace *trace) |
19867b61 ACM |
3255 | { |
3256 | int err = -1; | |
32dcd021 | 3257 | struct evsel *sys_exit; |
19867b61 ACM |
3258 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, |
3259 | trace->ev_qualifier_ids.nr, | |
3260 | trace->ev_qualifier_ids.entries); | |
3261 | ||
3262 | if (filter == NULL) | |
3263 | goto out_enomem; | |
3264 | ||
ad681adf | 3265 | if (!evsel__append_tp_filter(trace->syscalls.events.sys_enter, filter)) { |
b15d0a4c | 3266 | sys_exit = trace->syscalls.events.sys_exit; |
ad681adf | 3267 | err = evsel__append_tp_filter(sys_exit, filter); |
b15d0a4c | 3268 | } |
19867b61 ACM |
3269 | |
3270 | free(filter); | |
3271 | out: | |
3272 | return err; | |
3273 | out_enomem: | |
3274 | errno = ENOMEM; | |
3275 | goto out; | |
3276 | } | |
c27366f0 | 3277 | |
5e6da6be | 3278 | #ifdef HAVE_BPF_SKEL |
5834da7f ACM |
3279 | static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace, const char *name) |
3280 | { | |
b098f336 KFL |
3281 | struct bpf_program *pos, *prog = NULL; |
3282 | const char *sec_name; | |
3283 | ||
5e6da6be | 3284 | if (trace->skel->obj == NULL) |
5834da7f ACM |
3285 | return NULL; |
3286 | ||
5e6da6be | 3287 | bpf_object__for_each_program(pos, trace->skel->obj) { |
b098f336 KFL |
3288 | sec_name = bpf_program__section_name(pos); |
3289 | if (sec_name && !strcmp(sec_name, name)) { | |
3290 | prog = pos; | |
3291 | break; | |
3292 | } | |
3293 | } | |
3294 | ||
3295 | return prog; | |
5834da7f ACM |
3296 | } |
3297 | ||
6ff8fff4 ACM |
3298 | static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, struct syscall *sc, |
3299 | const char *prog_name, const char *type) | |
3300 | { | |
3301 | struct bpf_program *prog; | |
3302 | ||
8b8044e5 ACM |
3303 | if (prog_name == NULL) { |
3304 | char default_prog_name[256]; | |
5e6da6be | 3305 | scnprintf(default_prog_name, sizeof(default_prog_name), "tp/syscalls/sys_%s_%s", type, sc->name); |
8b8044e5 ACM |
3306 | prog = trace__find_bpf_program_by_title(trace, default_prog_name); |
3307 | if (prog != NULL) | |
3308 | goto out_found; | |
3309 | if (sc->fmt && sc->fmt->alias) { | |
5e6da6be | 3310 | scnprintf(default_prog_name, sizeof(default_prog_name), "tp/syscalls/sys_%s_%s", type, sc->fmt->alias); |
8b8044e5 ACM |
3311 | prog = trace__find_bpf_program_by_title(trace, default_prog_name); |
3312 | if (prog != NULL) | |
3313 | goto out_found; | |
3314 | } | |
6ff8fff4 | 3315 | goto out_unaugmented; |
8b8044e5 | 3316 | } |
6ff8fff4 ACM |
3317 | |
3318 | prog = trace__find_bpf_program_by_title(trace, prog_name); | |
8b8044e5 ACM |
3319 | |
3320 | if (prog != NULL) { | |
3321 | out_found: | |
6ff8fff4 | 3322 | return prog; |
8b8044e5 | 3323 | } |
6ff8fff4 ACM |
3324 | |
3325 | pr_debug("Couldn't find BPF prog \"%s\" to associate with syscalls:sys_%s_%s, not augmenting it\n", | |
3326 | prog_name, type, sc->name); | |
3327 | out_unaugmented: | |
5e6da6be | 3328 | return trace->skel->progs.syscall_unaugmented; |
6ff8fff4 ACM |
3329 | } |
3330 | ||
3331 | static void trace__init_syscall_bpf_progs(struct trace *trace, int id) | |
3332 | { | |
3333 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
3334 | ||
3335 | if (sc == NULL) | |
3336 | return; | |
3337 | ||
8b8044e5 ACM |
3338 | sc->bpf_prog.sys_enter = trace__find_syscall_bpf_prog(trace, sc, sc->fmt ? sc->fmt->bpf_prog_name.sys_enter : NULL, "enter"); |
3339 | 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 |
3340 | } |
3341 | ||
3803a229 ACM |
3342 | static int trace__bpf_prog_sys_enter_fd(struct trace *trace, int id) |
3343 | { | |
3344 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
5e6da6be | 3345 | return sc ? bpf_program__fd(sc->bpf_prog.sys_enter) : bpf_program__fd(trace->skel->progs.syscall_unaugmented); |
3803a229 ACM |
3346 | } |
3347 | ||
3348 | static int trace__bpf_prog_sys_exit_fd(struct trace *trace, int id) | |
3349 | { | |
3350 | struct syscall *sc = trace__syscall_info(trace, NULL, id); | |
5e6da6be | 3351 | return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(trace->skel->progs.syscall_unaugmented); |
3803a229 ACM |
3352 | } |
3353 | ||
ad4153f9 ACM |
3354 | static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace, struct syscall *sc) |
3355 | { | |
3356 | struct tep_format_field *field, *candidate_field; | |
3357 | int id; | |
3358 | ||
3359 | /* | |
3360 | * We're only interested in syscalls that have a pointer: | |
3361 | */ | |
3362 | for (field = sc->args; field; field = field->next) { | |
3363 | if (field->flags & TEP_FIELD_IS_POINTER) | |
3364 | goto try_to_find_pair; | |
3365 | } | |
3366 | ||
3367 | return NULL; | |
3368 | ||
3369 | try_to_find_pair: | |
3370 | for (id = 0; id < trace->sctbl->syscalls.nr_entries; ++id) { | |
3371 | struct syscall *pair = trace__syscall_info(trace, NULL, id); | |
3372 | struct bpf_program *pair_prog; | |
3373 | bool is_candidate = false; | |
3374 | ||
3375 | if (pair == NULL || pair == sc || | |
5e6da6be | 3376 | pair->bpf_prog.sys_enter == trace->skel->progs.syscall_unaugmented) |
ad4153f9 ACM |
3377 | continue; |
3378 | ||
3379 | for (field = sc->args, candidate_field = pair->args; | |
3380 | field && candidate_field; field = field->next, candidate_field = candidate_field->next) { | |
3381 | bool is_pointer = field->flags & TEP_FIELD_IS_POINTER, | |
3382 | candidate_is_pointer = candidate_field->flags & TEP_FIELD_IS_POINTER; | |
3383 | ||
3384 | if (is_pointer) { | |
3385 | if (!candidate_is_pointer) { | |
3386 | // The candidate just doesn't copies our pointer arg, might copy other pointers we want. | |
3387 | continue; | |
3388 | } | |
3389 | } else { | |
3390 | if (candidate_is_pointer) { | |
3391 | // The candidate might copy a pointer we don't have, skip it. | |
3392 | goto next_candidate; | |
3393 | } | |
3394 | continue; | |
3395 | } | |
3396 | ||
3397 | if (strcmp(field->type, candidate_field->type)) | |
3398 | goto next_candidate; | |
3399 | ||
64917f4d ACM |
3400 | /* |
3401 | * This is limited in the BPF program but sys_write | |
3402 | * uses "const char *" for its "buf" arg so we need to | |
3403 | * use some heuristic that is kinda future proof... | |
3404 | */ | |
3405 | if (strcmp(field->type, "const char *") == 0 && | |
3406 | !(strstr(field->name, "name") || | |
3407 | strstr(field->name, "path") || | |
3408 | strstr(field->name, "file") || | |
3409 | strstr(field->name, "root") || | |
3410 | strstr(field->name, "description"))) | |
3411 | goto next_candidate; | |
3412 | ||
ad4153f9 ACM |
3413 | is_candidate = true; |
3414 | } | |
3415 | ||
3416 | if (!is_candidate) | |
3417 | goto next_candidate; | |
3418 | ||
3419 | /* | |
3420 | * Check if the tentative pair syscall augmenter has more pointers, if it has, | |
3421 | * then it may be collecting that and we then can't use it, as it would collect | |
3422 | * more than what is common to the two syscalls. | |
3423 | */ | |
3424 | if (candidate_field) { | |
3425 | for (candidate_field = candidate_field->next; candidate_field; candidate_field = candidate_field->next) | |
3426 | if (candidate_field->flags & TEP_FIELD_IS_POINTER) | |
3427 | goto next_candidate; | |
3428 | } | |
3429 | ||
3430 | pair_prog = pair->bpf_prog.sys_enter; | |
3431 | /* | |
3432 | * If the pair isn't enabled, then its bpf_prog.sys_enter will not | |
3433 | * have been searched for, so search it here and if it returns the | |
3434 | * unaugmented one, then ignore it, otherwise we'll reuse that BPF | |
3435 | * program for a filtered syscall on a non-filtered one. | |
3436 | * | |
3437 | * For instance, we have "!syscalls:sys_enter_renameat" and that is | |
3438 | * useful for "renameat2". | |
3439 | */ | |
3440 | if (pair_prog == NULL) { | |
3441 | pair_prog = trace__find_syscall_bpf_prog(trace, pair, pair->fmt ? pair->fmt->bpf_prog_name.sys_enter : NULL, "enter"); | |
5e6da6be | 3442 | if (pair_prog == trace->skel->progs.syscall_unaugmented) |
ad4153f9 ACM |
3443 | goto next_candidate; |
3444 | } | |
3445 | ||
3446 | pr_debug("Reusing \"%s\" BPF sys_enter augmenter for \"%s\"\n", pair->name, sc->name); | |
3447 | return pair_prog; | |
3448 | next_candidate: | |
3449 | continue; | |
3450 | } | |
3451 | ||
3452 | return NULL; | |
3453 | } | |
3454 | ||
3803a229 ACM |
3455 | static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace) |
3456 | { | |
5e6da6be IR |
3457 | int map_enter_fd = bpf_map__fd(trace->skel->maps.syscalls_sys_enter); |
3458 | int map_exit_fd = bpf_map__fd(trace->skel->maps.syscalls_sys_exit); | |
3803a229 ACM |
3459 | int err = 0, key; |
3460 | ||
3461 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
3462 | int prog_fd; | |
3463 | ||
3464 | if (!trace__syscall_enabled(trace, key)) | |
3465 | continue; | |
3466 | ||
3467 | trace__init_syscall_bpf_progs(trace, key); | |
3468 | ||
3469 | // It'll get at least the "!raw_syscalls:unaugmented" | |
3470 | prog_fd = trace__bpf_prog_sys_enter_fd(trace, key); | |
3471 | err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY); | |
3472 | if (err) | |
3473 | break; | |
3474 | prog_fd = trace__bpf_prog_sys_exit_fd(trace, key); | |
3475 | err = bpf_map_update_elem(map_exit_fd, &key, &prog_fd, BPF_ANY); | |
3476 | if (err) | |
3477 | break; | |
3478 | } | |
3479 | ||
ad4153f9 ACM |
3480 | /* |
3481 | * Now lets do a second pass looking for enabled syscalls without | |
3482 | * an augmenter that have a signature that is a superset of another | |
3483 | * syscall with an augmenter so that we can auto-reuse it. | |
3484 | * | |
3485 | * I.e. if we have an augmenter for the "open" syscall that has | |
3486 | * this signature: | |
3487 | * | |
3488 | * int open(const char *pathname, int flags, mode_t mode); | |
3489 | * | |
3490 | * I.e. that will collect just the first string argument, then we | |
3491 | * can reuse it for the 'creat' syscall, that has this signature: | |
3492 | * | |
3493 | * int creat(const char *pathname, mode_t mode); | |
3494 | * | |
3495 | * and for: | |
3496 | * | |
3497 | * int stat(const char *pathname, struct stat *statbuf); | |
3498 | * int lstat(const char *pathname, struct stat *statbuf); | |
3499 | * | |
3500 | * Because the 'open' augmenter will collect the first arg as a string, | |
3501 | * and leave alone all the other args, which already helps with | |
3502 | * beautifying 'stat' and 'lstat''s pathname arg. | |
3503 | * | |
3504 | * Then, in time, when 'stat' gets an augmenter that collects both | |
3505 | * first and second arg (this one on the raw_syscalls:sys_exit prog | |
3506 | * array tail call, then that one will be used. | |
3507 | */ | |
3508 | for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) { | |
3509 | struct syscall *sc = trace__syscall_info(trace, NULL, key); | |
3510 | struct bpf_program *pair_prog; | |
3511 | int prog_fd; | |
3512 | ||
3513 | if (sc == NULL || sc->bpf_prog.sys_enter == NULL) | |
3514 | continue; | |
3515 | ||
3516 | /* | |
3517 | * For now we're just reusing the sys_enter prog, and if it | |
3518 | * already has an augmenter, we don't need to find one. | |
3519 | */ | |
5e6da6be | 3520 | if (sc->bpf_prog.sys_enter != trace->skel->progs.syscall_unaugmented) |
ad4153f9 ACM |
3521 | continue; |
3522 | ||
3523 | /* | |
3524 | * Look at all the other syscalls for one that has a signature | |
3525 | * that is close enough that we can share: | |
3526 | */ | |
3527 | pair_prog = trace__find_usable_bpf_prog_entry(trace, sc); | |
3528 | if (pair_prog == NULL) | |
3529 | continue; | |
3530 | ||
3531 | sc->bpf_prog.sys_enter = pair_prog; | |
3532 | ||
3533 | /* | |
3534 | * Update the BPF_MAP_TYPE_PROG_SHARED for raw_syscalls:sys_enter | |
3535 | * with the fd for the program we're reusing: | |
3536 | */ | |
3537 | prog_fd = bpf_program__fd(sc->bpf_prog.sys_enter); | |
3538 | err = bpf_map_update_elem(map_enter_fd, &key, &prog_fd, BPF_ANY); | |
3539 | if (err) | |
3540 | break; | |
3541 | } | |
3542 | ||
3803a229 ACM |
3543 | return err; |
3544 | } | |
5e6da6be | 3545 | #endif // HAVE_BPF_SKEL |
b27b38ed | 3546 | |
246fbe03 ACM |
3547 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
3548 | { | |
f76214f9 ACM |
3549 | if (trace->syscalls.events.sys_enter) |
3550 | return trace__set_ev_qualifier_tp_filter(trace); | |
3551 | return 0; | |
246fbe03 ACM |
3552 | } |
3553 | ||
a9964c43 ACM |
3554 | static int bpf_map__set_filter_pids(struct bpf_map *map __maybe_unused, |
3555 | size_t npids __maybe_unused, pid_t *pids __maybe_unused) | |
3556 | { | |
3557 | int err = 0; | |
3558 | #ifdef HAVE_LIBBPF_SUPPORT | |
3559 | bool value = true; | |
3560 | int map_fd = bpf_map__fd(map); | |
3561 | size_t i; | |
3562 | ||
3563 | for (i = 0; i < npids; ++i) { | |
3564 | err = bpf_map_update_elem(map_fd, &pids[i], &value, BPF_ANY); | |
3565 | if (err) | |
3566 | break; | |
3567 | } | |
3568 | #endif | |
3569 | return err; | |
3570 | } | |
3571 | ||
dd1a5037 ACM |
3572 | static int trace__set_filter_loop_pids(struct trace *trace) |
3573 | { | |
a9964c43 | 3574 | unsigned int nr = 1, err; |
dd1a5037 ACM |
3575 | pid_t pids[32] = { |
3576 | getpid(), | |
3577 | }; | |
082ab9a1 ACM |
3578 | struct thread *thread = machine__find_thread(trace->host, pids[0], pids[0]); |
3579 | ||
3580 | while (thread && nr < ARRAY_SIZE(pids)) { | |
ee84a303 IR |
3581 | struct thread *parent = machine__find_thread(trace->host, |
3582 | thread__ppid(thread), | |
3583 | thread__ppid(thread)); | |
082ab9a1 ACM |
3584 | |
3585 | if (parent == NULL) | |
3586 | break; | |
3587 | ||
ca2da70c ACM |
3588 | if (!strcmp(thread__comm_str(parent), "sshd") || |
3589 | strstarts(thread__comm_str(parent), "gnome-terminal")) { | |
ee84a303 | 3590 | pids[nr++] = thread__tid(parent); |
082ab9a1 ACM |
3591 | break; |
3592 | } | |
3593 | thread = parent; | |
3594 | } | |
dd1a5037 | 3595 | |
24bf91a7 | 3596 | err = evlist__append_tp_filter_pids(trace->evlist, nr, pids); |
a9964c43 ACM |
3597 | if (!err && trace->filter_pids.map) |
3598 | err = bpf_map__set_filter_pids(trace->filter_pids.map, nr, pids); | |
3599 | ||
3600 | return err; | |
3601 | } | |
3602 | ||
3603 | static int trace__set_filter_pids(struct trace *trace) | |
3604 | { | |
3605 | int err = 0; | |
3606 | /* | |
3607 | * Better not use !target__has_task() here because we need to cover the | |
3608 | * case where no threads were specified in the command line, but a | |
3609 | * workload was, and in that case we will fill in the thread_map when | |
7b392ef0 | 3610 | * we fork the workload in evlist__prepare_workload. |
a9964c43 ACM |
3611 | */ |
3612 | if (trace->filter_pids.nr > 0) { | |
24bf91a7 ACM |
3613 | err = evlist__append_tp_filter_pids(trace->evlist, trace->filter_pids.nr, |
3614 | trace->filter_pids.entries); | |
a9964c43 ACM |
3615 | if (!err && trace->filter_pids.map) { |
3616 | err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr, | |
3617 | trace->filter_pids.entries); | |
3618 | } | |
a2f354e3 | 3619 | } else if (perf_thread_map__pid(trace->evlist->core.threads, 0) == -1) { |
a9964c43 ACM |
3620 | err = trace__set_filter_loop_pids(trace); |
3621 | } | |
3622 | ||
3623 | return err; | |
dd1a5037 ACM |
3624 | } |
3625 | ||
7ba61524 | 3626 | static int __trace__deliver_event(struct trace *trace, union perf_event *event) |
1f44b3e2 | 3627 | { |
63503dba | 3628 | struct evlist *evlist = trace->evlist; |
1f44b3e2 | 3629 | struct perf_sample sample; |
2a6599cd | 3630 | int err = evlist__parse_sample(evlist, event, &sample); |
1f44b3e2 | 3631 | |
1f44b3e2 JO |
3632 | if (err) |
3633 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); | |
3634 | else | |
3635 | trace__handle_event(trace, event, &sample); | |
3636 | ||
3637 | return 0; | |
3638 | } | |
3639 | ||
a761a8d1 | 3640 | static int __trace__flush_events(struct trace *trace) |
028713aa JO |
3641 | { |
3642 | u64 first = ordered_events__first_time(&trace->oe.data); | |
3643 | u64 flush = trace->oe.last - NSEC_PER_SEC; | |
3644 | ||
3645 | /* Is there some thing to flush.. */ | |
3646 | if (first && first < flush) | |
3647 | return ordered_events__flush_time(&trace->oe.data, flush); | |
3648 | ||
3649 | return 0; | |
3650 | } | |
3651 | ||
a761a8d1 ACM |
3652 | static int trace__flush_events(struct trace *trace) |
3653 | { | |
3654 | return !trace->sort_events ? 0 : __trace__flush_events(trace); | |
3655 | } | |
3656 | ||
7ba61524 | 3657 | static int trace__deliver_event(struct trace *trace, union perf_event *event) |
028713aa | 3658 | { |
028713aa JO |
3659 | int err; |
3660 | ||
a761a8d1 ACM |
3661 | if (!trace->sort_events) |
3662 | return __trace__deliver_event(trace, event); | |
3663 | ||
2a6599cd | 3664 | err = evlist__parse_sample_timestamp(trace->evlist, event, &trace->oe.last); |
028713aa JO |
3665 | if (err && err != -1) |
3666 | return err; | |
3667 | ||
2292083f | 3668 | err = ordered_events__queue(&trace->oe.data, event, trace->oe.last, 0, NULL); |
028713aa JO |
3669 | if (err) |
3670 | return err; | |
3671 | ||
7ba61524 | 3672 | return trace__flush_events(trace); |
028713aa JO |
3673 | } |
3674 | ||
3675 | static int ordered_events__deliver_event(struct ordered_events *oe, | |
3676 | struct ordered_event *event) | |
3677 | { | |
3678 | struct trace *trace = container_of(oe, struct trace, oe.data); | |
3679 | ||
7ba61524 | 3680 | return __trace__deliver_event(trace, event->event); |
028713aa JO |
3681 | } |
3682 | ||
794bca26 | 3683 | static struct syscall_arg_fmt *evsel__find_syscall_arg_fmt_by_name(struct evsel *evsel, char *arg) |
90df0249 ACM |
3684 | { |
3685 | struct tep_format_field *field; | |
fecd9907 | 3686 | struct syscall_arg_fmt *fmt = __evsel__syscall_arg_fmt(evsel); |
90df0249 ACM |
3687 | |
3688 | if (evsel->tp_format == NULL || fmt == NULL) | |
3689 | return NULL; | |
3690 | ||
3691 | for (field = evsel->tp_format->format.fields; field; field = field->next, ++fmt) | |
3692 | if (strcmp(field->name, arg) == 0) | |
3693 | return fmt; | |
3694 | ||
3695 | return NULL; | |
3696 | } | |
3697 | ||
3698 | static int trace__expand_filter(struct trace *trace __maybe_unused, struct evsel *evsel) | |
3699 | { | |
3700 | char *tok, *left = evsel->filter, *new_filter = evsel->filter; | |
3701 | ||
3702 | while ((tok = strpbrk(left, "=<>!")) != NULL) { | |
3703 | char *right = tok + 1, *right_end; | |
3704 | ||
3705 | if (*right == '=') | |
3706 | ++right; | |
3707 | ||
3708 | while (isspace(*right)) | |
3709 | ++right; | |
3710 | ||
3711 | if (*right == '\0') | |
3712 | break; | |
3713 | ||
3714 | while (!isalpha(*left)) | |
3715 | if (++left == tok) { | |
3716 | /* | |
3717 | * Bail out, can't find the name of the argument that is being | |
3718 | * used in the filter, let it try to set this filter, will fail later. | |
3719 | */ | |
3720 | return 0; | |
3721 | } | |
3722 | ||
3723 | right_end = right + 1; | |
154c978d | 3724 | while (isalnum(*right_end) || *right_end == '_' || *right_end == '|') |
90df0249 ACM |
3725 | ++right_end; |
3726 | ||
3727 | if (isalpha(*right)) { | |
3728 | struct syscall_arg_fmt *fmt; | |
3729 | int left_size = tok - left, | |
3730 | right_size = right_end - right; | |
3731 | char arg[128]; | |
3732 | ||
3733 | while (isspace(left[left_size - 1])) | |
3734 | --left_size; | |
3735 | ||
3736 | scnprintf(arg, sizeof(arg), "%.*s", left_size, left); | |
3737 | ||
794bca26 | 3738 | fmt = evsel__find_syscall_arg_fmt_by_name(evsel, arg); |
90df0249 | 3739 | if (fmt == NULL) { |
3cdc8db9 ACM |
3740 | pr_err("\"%s\" not found in \"%s\", can't set filter \"%s\"\n", |
3741 | arg, evsel->name, evsel->filter); | |
90df0249 ACM |
3742 | return -1; |
3743 | } | |
3744 | ||
3745 | pr_debug2("trying to expand \"%s\" \"%.*s\" \"%.*s\" -> ", | |
3746 | arg, (int)(right - tok), tok, right_size, right); | |
3747 | ||
3748 | if (fmt->strtoul) { | |
3749 | u64 val; | |
9afec87e ACM |
3750 | struct syscall_arg syscall_arg = { |
3751 | .parm = fmt->parm, | |
3752 | }; | |
3753 | ||
3754 | if (fmt->strtoul(right, right_size, &syscall_arg, &val)) { | |
90df0249 ACM |
3755 | char *n, expansion[19]; |
3756 | int expansion_lenght = scnprintf(expansion, sizeof(expansion), "%#" PRIx64, val); | |
3757 | int expansion_offset = right - new_filter; | |
3758 | ||
3759 | pr_debug("%s", expansion); | |
3760 | ||
3761 | if (asprintf(&n, "%.*s%s%s", expansion_offset, new_filter, expansion, right_end) < 0) { | |
3762 | pr_debug(" out of memory!\n"); | |
3763 | free(new_filter); | |
3764 | return -1; | |
3765 | } | |
3766 | if (new_filter != evsel->filter) | |
3767 | free(new_filter); | |
3768 | left = n + expansion_offset + expansion_lenght; | |
3769 | new_filter = n; | |
3770 | } else { | |
3771 | pr_err("\"%.*s\" not found for \"%s\" in \"%s\", can't set filter \"%s\"\n", | |
3772 | right_size, right, arg, evsel->name, evsel->filter); | |
3773 | return -1; | |
3774 | } | |
3775 | } else { | |
3776 | pr_err("No resolver (strtoul) for \"%s\" in \"%s\", can't set filter \"%s\"\n", | |
3777 | arg, evsel->name, evsel->filter); | |
3778 | return -1; | |
3779 | } | |
3780 | ||
3781 | pr_debug("\n"); | |
3782 | } else { | |
3783 | left = right_end; | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | if (new_filter != evsel->filter) { | |
3788 | pr_debug("New filter for %s: %s\n", evsel->name, new_filter); | |
ad681adf | 3789 | evsel__set_filter(evsel, new_filter); |
90df0249 ACM |
3790 | free(new_filter); |
3791 | } | |
3792 | ||
3793 | return 0; | |
3794 | } | |
3795 | ||
3796 | static int trace__expand_filters(struct trace *trace, struct evsel **err_evsel) | |
3797 | { | |
3798 | struct evlist *evlist = trace->evlist; | |
3799 | struct evsel *evsel; | |
3800 | ||
3801 | evlist__for_each_entry(evlist, evsel) { | |
3802 | if (evsel->filter == NULL) | |
3803 | continue; | |
3804 | ||
3805 | if (trace__expand_filter(trace, evsel)) { | |
3806 | *err_evsel = evsel; | |
3807 | return -1; | |
3808 | } | |
3809 | } | |
3810 | ||
3811 | return 0; | |
3812 | } | |
3813 | ||
f15eb531 | 3814 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 3815 | { |
63503dba | 3816 | struct evlist *evlist = trace->evlist; |
32dcd021 | 3817 | struct evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
3818 | int err = -1, i; |
3819 | unsigned long before; | |
f15eb531 | 3820 | const bool forks = argc > 0; |
46fb3c21 | 3821 | bool draining = false; |
514f1c67 | 3822 | |
75b757ca ACM |
3823 | trace->live = true; |
3824 | ||
0df50e0b ACM |
3825 | if (!trace->raw_augmented_syscalls) { |
3826 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) | |
3827 | goto out_error_raw_syscalls; | |
514f1c67 | 3828 | |
0df50e0b | 3829 | if (trace->trace_syscalls) |
a1cf3a75 | 3830 | trace->vfs_getname = evlist__add_vfs_getname(evlist); |
0df50e0b | 3831 | } |
c522739d | 3832 | |
0ae537cb | 3833 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
8f6725a2 | 3834 | pgfault_maj = evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); |
0ae537cb ACM |
3835 | if (pgfault_maj == NULL) |
3836 | goto out_error_mem; | |
6ec17b4e | 3837 | evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); |
a1cf3a75 | 3838 | evlist__add(evlist, pgfault_maj); |
e2726d99 | 3839 | } |
598d02c5 | 3840 | |
0ae537cb | 3841 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
8f6725a2 | 3842 | pgfault_min = evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); |
0ae537cb ACM |
3843 | if (pgfault_min == NULL) |
3844 | goto out_error_mem; | |
6ec17b4e | 3845 | evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); |
a1cf3a75 | 3846 | evlist__add(evlist, pgfault_min); |
0ae537cb | 3847 | } |
598d02c5 | 3848 | |
b4515ad6 GL |
3849 | /* Enable ignoring missing threads when -u/-p option is defined. */ |
3850 | trace->opts.ignore_missing_thread = trace->opts.target.uid != UINT_MAX || trace->opts.target.pid; | |
3851 | ||
1302d88e | 3852 | if (trace->sched && |
e251abee | 3853 | evlist__add_newtp(evlist, "sched", "sched_stat_runtime", trace__sched_stat_runtime)) |
2cc990ba | 3854 | goto out_error_sched_stat_runtime; |
9ea42ba4 ACM |
3855 | /* |
3856 | * If a global cgroup was set, apply it to all the events without an | |
3857 | * explicit cgroup. I.e.: | |
3858 | * | |
3859 | * trace -G A -e sched:*switch | |
3860 | * | |
3861 | * Will set all raw_syscalls:sys_{enter,exit}, pgfault, vfs_getname, etc | |
3862 | * _and_ sched:sched_switch to the 'A' cgroup, while: | |
3863 | * | |
3864 | * trace -e sched:*switch -G A | |
3865 | * | |
3866 | * will only set the sched:sched_switch event to the 'A' cgroup, all the | |
3867 | * other events (raw_syscalls:sys_{enter,exit}, etc are left "without" | |
3868 | * a cgroup (on the root cgroup, sys wide, etc). | |
3869 | * | |
3870 | * Multiple cgroups: | |
3871 | * | |
3872 | * trace -G A -e sched:*switch -G B | |
3873 | * | |
3874 | * the syscall ones go to the 'A' cgroup, the sched:sched_switch goes | |
3875 | * to the 'B' cgroup. | |
3876 | * | |
3877 | * evlist__set_default_cgroup() grabs a reference of the passed cgroup | |
3878 | * only for the evsels still without a cgroup, i.e. evsel->cgroup == NULL. | |
3879 | */ | |
3880 | if (trace->cgroup) | |
3881 | evlist__set_default_cgroup(trace->evlist, trace->cgroup); | |
3882 | ||
7748bb71 | 3883 | err = evlist__create_maps(evlist, &trace->opts.target); |
514f1c67 | 3884 | if (err < 0) { |
c24ff998 | 3885 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
3886 | goto out_delete_evlist; |
3887 | } | |
3888 | ||
752fde44 ACM |
3889 | err = trace__symbols_init(trace, evlist); |
3890 | if (err < 0) { | |
c24ff998 | 3891 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 3892 | goto out_delete_evlist; |
752fde44 ACM |
3893 | } |
3894 | ||
78e1bc25 | 3895 | evlist__config(evlist, &trace->opts, &callchain_param); |
fde54b78 | 3896 | |
f15eb531 | 3897 | if (forks) { |
7b392ef0 | 3898 | err = evlist__prepare_workload(evlist, &trace->opts.target, argv, false, NULL); |
f15eb531 | 3899 | if (err < 0) { |
c24ff998 | 3900 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 3901 | goto out_delete_evlist; |
f15eb531 | 3902 | } |
de9f498d | 3903 | workload_pid = evlist->workload.pid; |
f15eb531 NK |
3904 | } |
3905 | ||
474ddc4c | 3906 | err = evlist__open(evlist); |
a8f23d8f ACM |
3907 | if (err < 0) |
3908 | goto out_error_open; | |
5e6da6be | 3909 | #ifdef HAVE_BPF_SKEL |
83a0943b | 3910 | if (trace->syscalls.events.bpf_output) { |
5e6da6be | 3911 | struct perf_cpu cpu; |
514f1c67 | 3912 | |
5e6da6be IR |
3913 | /* |
3914 | * Set up the __augmented_syscalls__ BPF map to hold for each | |
3915 | * CPU the bpf-output event's file descriptor. | |
3916 | */ | |
3917 | perf_cpu_map__for_each_cpu(cpu, i, trace->syscalls.events.bpf_output->core.cpus) { | |
3918 | bpf_map__update_elem(trace->skel->maps.__augmented_syscalls__, | |
3919 | &cpu.cpu, sizeof(int), | |
3920 | xyarray__entry(trace->syscalls.events.bpf_output->core.fd, | |
3921 | cpu.cpu, 0), | |
3922 | sizeof(__u32), BPF_ANY); | |
3923 | } | |
3924 | } | |
3925 | #endif | |
a9964c43 | 3926 | err = trace__set_filter_pids(trace); |
94ad89bc ACM |
3927 | if (err < 0) |
3928 | goto out_error_mem; | |
3929 | ||
5e6da6be | 3930 | #ifdef HAVE_BPF_SKEL |
83a0943b | 3931 | if (trace->skel && trace->skel->progs.sys_enter) |
3803a229 | 3932 | trace__init_syscalls_bpf_prog_array_maps(trace); |
5e6da6be | 3933 | #endif |
3803a229 | 3934 | |
19867b61 ACM |
3935 | if (trace->ev_qualifier_ids.nr > 0) { |
3936 | err = trace__set_ev_qualifier_filter(trace); | |
3937 | if (err < 0) | |
3938 | goto out_errno; | |
19867b61 | 3939 | |
0df50e0b ACM |
3940 | if (trace->syscalls.events.sys_exit) { |
3941 | pr_debug("event qualifier tracepoint filter: %s\n", | |
3942 | trace->syscalls.events.sys_exit->filter); | |
3943 | } | |
2e5e5f87 | 3944 | } |
19867b61 | 3945 | |
79d725cd ACM |
3946 | /* |
3947 | * If the "close" syscall is not traced, then we will not have the | |
3948 | * opportunity to, in syscall_arg__scnprintf_close_fd() invalidate the | |
3949 | * fd->pathname table and were ending up showing the last value set by | |
3950 | * syscalls opening a pathname and associating it with a descriptor or | |
3951 | * reading it from /proc/pid/fd/ in cases where that doesn't make | |
3952 | * sense. | |
3953 | * | |
3954 | * So just disable this beautifier (SCA_FD, SCA_FDAT) when 'close' is | |
3955 | * not in use. | |
3956 | */ | |
3957 | trace->fd_path_disabled = !trace__syscall_enabled(trace, syscalltbl__id(trace->sctbl, "close")); | |
3958 | ||
90df0249 ACM |
3959 | err = trace__expand_filters(trace, &evsel); |
3960 | if (err) | |
3961 | goto out_delete_evlist; | |
24bf91a7 | 3962 | err = evlist__apply_filters(evlist, &evsel); |
94ad89bc ACM |
3963 | if (err < 0) |
3964 | goto out_error_apply_filters; | |
241b057c | 3965 | |
9521b5f2 | 3966 | err = evlist__mmap(evlist, trace->opts.mmap_pages); |
e09b18d4 ACM |
3967 | if (err < 0) |
3968 | goto out_error_mmap; | |
514f1c67 | 3969 | |
cb4b9e68 | 3970 | if (!target__none(&trace->opts.target) && !trace->opts.target.initial_delay) |
1c87f165 | 3971 | evlist__enable(evlist); |
cb24d01d | 3972 | |
f15eb531 | 3973 | if (forks) |
7b392ef0 | 3974 | evlist__start_workload(evlist); |
f15eb531 | 3975 | |
cb4b9e68 CD |
3976 | if (trace->opts.target.initial_delay) { |
3977 | usleep(trace->opts.target.initial_delay * 1000); | |
1c87f165 | 3978 | evlist__enable(evlist); |
e36b7821 AB |
3979 | } |
3980 | ||
a2f354e3 | 3981 | trace->multiple_threads = perf_thread_map__pid(evlist->core.threads, 0) == -1 || |
fd3f518f IR |
3982 | perf_thread_map__nr(evlist->core.threads) > 1 || |
3983 | evlist__first(evlist)->core.attr.inherit; | |
bd3dda9a ACM |
3984 | |
3985 | /* | |
1fc632ce JO |
3986 | * Now that we already used evsel->core.attr to ask the kernel to setup the |
3987 | * events, lets reuse evsel->core.attr.sample_max_stack as the limit in | |
bd3dda9a | 3988 | * trace__resolve_callchain(), allowing per-event max-stack settings |
adba1634 | 3989 | * to override an explicitly set --max-stack global setting. |
bd3dda9a ACM |
3990 | */ |
3991 | evlist__for_each_entry(evlist, evsel) { | |
27de9b2b | 3992 | if (evsel__has_callchain(evsel) && |
1fc632ce JO |
3993 | evsel->core.attr.sample_max_stack == 0) |
3994 | evsel->core.attr.sample_max_stack = trace->max_stack; | |
bd3dda9a | 3995 | } |
514f1c67 | 3996 | again: |
efd5745e | 3997 | before = trace->nr_events; |
514f1c67 | 3998 | |
c976ee11 | 3999 | for (i = 0; i < evlist->core.nr_mmaps; i++) { |
514f1c67 | 4000 | union perf_event *event; |
a5830532 | 4001 | struct mmap *md; |
514f1c67 | 4002 | |
d7f55c62 | 4003 | md = &evlist->mmap[i]; |
7c4d4182 | 4004 | if (perf_mmap__read_init(&md->core) < 0) |
d7f55c62 KL |
4005 | continue; |
4006 | ||
151ed5d7 | 4007 | while ((event = perf_mmap__read_event(&md->core)) != NULL) { |
efd5745e | 4008 | ++trace->nr_events; |
514f1c67 | 4009 | |
7ba61524 | 4010 | err = trace__deliver_event(trace, event); |
028713aa JO |
4011 | if (err) |
4012 | goto out_disable; | |
514f1c67 | 4013 | |
7728fa0c | 4014 | perf_mmap__consume(&md->core); |
20c5f10e | 4015 | |
ba209f85 ACM |
4016 | if (interrupted) |
4017 | goto out_disable; | |
02ac5421 ACM |
4018 | |
4019 | if (done && !draining) { | |
e74676de | 4020 | evlist__disable(evlist); |
02ac5421 ACM |
4021 | draining = true; |
4022 | } | |
514f1c67 | 4023 | } |
32fdc2ca | 4024 | perf_mmap__read_done(&md->core); |
514f1c67 ACM |
4025 | } |
4026 | ||
efd5745e | 4027 | if (trace->nr_events == before) { |
ba209f85 | 4028 | int timeout = done ? 100 : -1; |
f15eb531 | 4029 | |
80ab2987 | 4030 | if (!draining && evlist__poll(evlist, timeout) > 0) { |
f4009e7b | 4031 | if (evlist__filter_pollfd(evlist, POLLERR | POLLHUP | POLLNVAL) == 0) |
46fb3c21 ACM |
4032 | draining = true; |
4033 | ||
ba209f85 | 4034 | goto again; |
028713aa | 4035 | } else { |
7ba61524 | 4036 | if (trace__flush_events(trace)) |
028713aa | 4037 | goto out_disable; |
46fb3c21 | 4038 | } |
ba209f85 ACM |
4039 | } else { |
4040 | goto again; | |
f15eb531 NK |
4041 | } |
4042 | ||
ba209f85 | 4043 | out_disable: |
f3b623b8 ACM |
4044 | thread__zput(trace->current); |
4045 | ||
e74676de | 4046 | evlist__disable(evlist); |
514f1c67 | 4047 | |
a761a8d1 ACM |
4048 | if (trace->sort_events) |
4049 | ordered_events__flush(&trace->oe.data, OE_FLUSH__FINAL); | |
028713aa | 4050 | |
c522739d ACM |
4051 | if (!err) { |
4052 | if (trace->summary) | |
4053 | trace__fprintf_thread_summary(trace, trace->output); | |
4054 | ||
4055 | if (trace->show_tool_stats) { | |
4056 | fprintf(trace->output, "Stats:\n " | |
4057 | " vfs_getname : %" PRIu64 "\n" | |
4058 | " proc_getname: %" PRIu64 "\n", | |
4059 | trace->stats.vfs_getname, | |
4060 | trace->stats.proc_getname); | |
4061 | } | |
4062 | } | |
bf2575c1 | 4063 | |
514f1c67 | 4064 | out_delete_evlist: |
33974a41 | 4065 | trace__symbols__exit(trace); |
3cb4d5e0 | 4066 | evlist__free_syscall_tp_fields(evlist); |
c12995a5 | 4067 | evlist__delete(evlist); |
9ea42ba4 | 4068 | cgroup__put(trace->cgroup); |
14a052df | 4069 | trace->evlist = NULL; |
75b757ca | 4070 | trace->live = false; |
514f1c67 | 4071 | return err; |
6ef068cb ACM |
4072 | { |
4073 | char errbuf[BUFSIZ]; | |
a8f23d8f | 4074 | |
2cc990ba | 4075 | out_error_sched_stat_runtime: |
988bdb31 | 4076 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
4077 | goto out_error; |
4078 | ||
801c67b0 | 4079 | out_error_raw_syscalls: |
988bdb31 | 4080 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
4081 | goto out_error; |
4082 | ||
e09b18d4 | 4083 | out_error_mmap: |
d1f249ec | 4084 | evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); |
e09b18d4 ACM |
4085 | goto out_error; |
4086 | ||
a8f23d8f | 4087 | out_error_open: |
d1f249ec | 4088 | evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); |
a8f23d8f ACM |
4089 | |
4090 | out_error: | |
6ef068cb | 4091 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 4092 | goto out_delete_evlist; |
94ad89bc ACM |
4093 | |
4094 | out_error_apply_filters: | |
4095 | fprintf(trace->output, | |
4096 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
8ab2e96d | 4097 | evsel->filter, evsel__name(evsel), errno, |
c8b5f2c9 | 4098 | str_error_r(errno, errbuf, sizeof(errbuf))); |
94ad89bc | 4099 | goto out_delete_evlist; |
514f1c67 | 4100 | } |
5ed08dae ACM |
4101 | out_error_mem: |
4102 | fprintf(trace->output, "Not enough memory to run!\n"); | |
4103 | goto out_delete_evlist; | |
19867b61 ACM |
4104 | |
4105 | out_errno: | |
4106 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
4107 | goto out_delete_evlist; | |
a8f23d8f | 4108 | } |
514f1c67 | 4109 | |
6810fc91 DA |
4110 | static int trace__replay(struct trace *trace) |
4111 | { | |
32dcd021 | 4112 | const struct evsel_str_handler handlers[] = { |
c522739d | 4113 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 4114 | }; |
8ceb41d7 | 4115 | struct perf_data data = { |
2d4f2799 JO |
4116 | .path = input_name, |
4117 | .mode = PERF_DATA_MODE_READ, | |
4118 | .force = trace->force, | |
f5fc1412 | 4119 | }; |
6810fc91 | 4120 | struct perf_session *session; |
32dcd021 | 4121 | struct evsel *evsel; |
6810fc91 DA |
4122 | int err = -1; |
4123 | ||
4124 | trace->tool.sample = trace__process_sample; | |
4125 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 4126 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
4127 | trace->tool.comm = perf_event__process_comm; |
4128 | trace->tool.exit = perf_event__process_exit; | |
4129 | trace->tool.fork = perf_event__process_fork; | |
4130 | trace->tool.attr = perf_event__process_attr; | |
f3b3614a | 4131 | trace->tool.tracing_data = perf_event__process_tracing_data; |
6810fc91 | 4132 | trace->tool.build_id = perf_event__process_build_id; |
f3b3614a | 4133 | trace->tool.namespaces = perf_event__process_namespaces; |
6810fc91 | 4134 | |
0a8cb85c | 4135 | trace->tool.ordered_events = true; |
6810fc91 DA |
4136 | trace->tool.ordering_requires_timestamps = true; |
4137 | ||
4138 | /* add tid to output */ | |
4139 | trace->multiple_threads = true; | |
4140 | ||
2681bd85 | 4141 | session = perf_session__new(&data, &trace->tool); |
6ef81c55 MI |
4142 | if (IS_ERR(session)) |
4143 | return PTR_ERR(session); | |
6810fc91 | 4144 | |
aa07df6e DA |
4145 | if (trace->opts.target.pid) |
4146 | symbol_conf.pid_list_str = strdup(trace->opts.target.pid); | |
4147 | ||
4148 | if (trace->opts.target.tid) | |
4149 | symbol_conf.tid_list_str = strdup(trace->opts.target.tid); | |
4150 | ||
0a7e6d1b | 4151 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
4152 | goto out; |
4153 | ||
8fb598e5 DA |
4154 | trace->host = &session->machines.host; |
4155 | ||
6810fc91 DA |
4156 | err = perf_session__set_tracepoints_handlers(session, handlers); |
4157 | if (err) | |
4158 | goto out; | |
4159 | ||
b02736f7 | 4160 | evsel = evlist__find_tracepoint_by_name(session->evlist, "raw_syscalls:sys_enter"); |
4b335e1e | 4161 | trace->syscalls.events.sys_enter = evsel; |
9aca7f17 DA |
4162 | /* older kernels have syscalls tp versus raw_syscalls */ |
4163 | if (evsel == NULL) | |
b02736f7 | 4164 | evsel = evlist__find_tracepoint_by_name(session->evlist, "syscalls:sys_enter"); |
003824e8 | 4165 | |
e281a960 | 4166 | if (evsel && |
794bca26 | 4167 | (evsel__init_raw_syscall_tp(evsel, trace__sys_enter) < 0 || |
e281a960 | 4168 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { |
003824e8 NK |
4169 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
4170 | goto out; | |
4171 | } | |
4172 | ||
b02736f7 | 4173 | evsel = evlist__find_tracepoint_by_name(session->evlist, "raw_syscalls:sys_exit"); |
4b335e1e | 4174 | trace->syscalls.events.sys_exit = evsel; |
9aca7f17 | 4175 | if (evsel == NULL) |
b02736f7 | 4176 | evsel = evlist__find_tracepoint_by_name(session->evlist, "syscalls:sys_exit"); |
e281a960 | 4177 | if (evsel && |
794bca26 | 4178 | (evsel__init_raw_syscall_tp(evsel, trace__sys_exit) < 0 || |
e281a960 | 4179 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { |
003824e8 | 4180 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
4181 | goto out; |
4182 | } | |
4183 | ||
e5cadb93 | 4184 | evlist__for_each_entry(session->evlist, evsel) { |
1fc632ce JO |
4185 | if (evsel->core.attr.type == PERF_TYPE_SOFTWARE && |
4186 | (evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
4187 | evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
4188 | evsel->core.attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
1e28fe0a SF |
4189 | evsel->handler = trace__pgfault; |
4190 | } | |
4191 | ||
6810fc91 DA |
4192 | setup_pager(); |
4193 | ||
b7b61cbe | 4194 | err = perf_session__process_events(session); |
6810fc91 DA |
4195 | if (err) |
4196 | pr_err("Failed to process events, error %d", err); | |
4197 | ||
bf2575c1 DA |
4198 | else if (trace->summary) |
4199 | trace__fprintf_thread_summary(trace, trace->output); | |
4200 | ||
6810fc91 DA |
4201 | out: |
4202 | perf_session__delete(session); | |
4203 | ||
4204 | return err; | |
4205 | } | |
4206 | ||
1302d88e ACM |
4207 | static size_t trace__fprintf_threads_header(FILE *fp) |
4208 | { | |
4209 | size_t printed; | |
4210 | ||
99ff7150 | 4211 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
4212 | |
4213 | return printed; | |
4214 | } | |
4215 | ||
b535d523 | 4216 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
8eded45f ACM |
4217 | struct syscall_stats *stats; |
4218 | double msecs; | |
4219 | int syscall; | |
b535d523 ACM |
4220 | ) |
4221 | { | |
4222 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
8eded45f | 4223 | struct syscall_stats *stats = source->priv; |
b535d523 ACM |
4224 | |
4225 | entry->syscall = source->i; | |
4226 | entry->stats = stats; | |
8eded45f | 4227 | entry->msecs = stats ? (u64)stats->stats.n * (avg_stats(&stats->stats) / NSEC_PER_MSEC) : 0; |
b535d523 ACM |
4228 | } |
4229 | ||
bf2575c1 DA |
4230 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
4231 | struct trace *trace, FILE *fp) | |
4232 | { | |
bf2575c1 DA |
4233 | size_t printed = 0; |
4234 | struct syscall *sc; | |
b535d523 ACM |
4235 | struct rb_node *nd; |
4236 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 4237 | |
b535d523 | 4238 | if (syscall_stats == NULL) |
bf2575c1 DA |
4239 | return 0; |
4240 | ||
4241 | printed += fprintf(fp, "\n"); | |
4242 | ||
8eded45f ACM |
4243 | printed += fprintf(fp, " syscall calls errors total min avg max stddev\n"); |
4244 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
4245 | printed += fprintf(fp, " --------------- -------- ------ -------- --------- --------- --------- ------\n"); | |
99ff7150 | 4246 | |
98a91837 | 4247 | resort_rb__for_each_entry(nd, syscall_stats) { |
8eded45f | 4248 | struct syscall_stats *stats = syscall_stats_entry->stats; |
bf2575c1 | 4249 | if (stats) { |
8eded45f ACM |
4250 | double min = (double)(stats->stats.min) / NSEC_PER_MSEC; |
4251 | double max = (double)(stats->stats.max) / NSEC_PER_MSEC; | |
4252 | double avg = avg_stats(&stats->stats); | |
bf2575c1 | 4253 | double pct; |
8eded45f | 4254 | u64 n = (u64)stats->stats.n; |
bf2575c1 | 4255 | |
8eded45f | 4256 | pct = avg ? 100.0 * stddev_stats(&stats->stats) / avg : 0.0; |
bf2575c1 DA |
4257 | avg /= NSEC_PER_MSEC; |
4258 | ||
b535d523 | 4259 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 4260 | printed += fprintf(fp, " %-15s", sc->name); |
8eded45f ACM |
4261 | printed += fprintf(fp, " %8" PRIu64 " %6" PRIu64 " %9.3f %9.3f %9.3f", |
4262 | n, stats->nr_failures, syscall_stats_entry->msecs, min, avg); | |
27a778b5 | 4263 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
b88b14db ACM |
4264 | |
4265 | if (trace->errno_summary && stats->nr_failures) { | |
b88b14db ACM |
4266 | int e; |
4267 | ||
4268 | for (e = 0; e < stats->max_errno; ++e) { | |
4269 | if (stats->errnos[e] != 0) | |
54373b5d | 4270 | fprintf(fp, "\t\t\t\t%s: %d\n", perf_env__arch_strerrno(trace->host->env, e + 1), stats->errnos[e]); |
b88b14db ACM |
4271 | } |
4272 | } | |
bf2575c1 | 4273 | } |
bf2575c1 DA |
4274 | } |
4275 | ||
b535d523 | 4276 | resort_rb__delete(syscall_stats); |
bf2575c1 | 4277 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
4278 | |
4279 | return printed; | |
4280 | } | |
4281 | ||
96c14451 | 4282 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 4283 | { |
96c14451 | 4284 | size_t printed = 0; |
89dceb22 | 4285 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
4286 | double ratio; |
4287 | ||
4288 | if (ttrace == NULL) | |
4289 | return 0; | |
4290 | ||
4291 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
4292 | ||
ee84a303 | 4293 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread__tid(thread)); |
99ff7150 | 4294 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 4295 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
4296 | if (ttrace->pfmaj) |
4297 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
4298 | if (ttrace->pfmin) | |
4299 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
4300 | if (trace->sched) |
4301 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
4302 | else if (fputc('\n', fp) != EOF) | |
4303 | ++printed; | |
4304 | ||
bf2575c1 | 4305 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 4306 | |
96c14451 ACM |
4307 | return printed; |
4308 | } | |
896cbb56 | 4309 | |
96c14451 ACM |
4310 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
4311 | { | |
4312 | return ttrace ? ttrace->nr_events : 0; | |
4313 | } | |
4314 | ||
ee84a303 IR |
4315 | DEFINE_RESORT_RB(threads, |
4316 | (thread__nr_events(thread__priv(a->thread)) < | |
4317 | thread__nr_events(thread__priv(b->thread))), | |
96c14451 ACM |
4318 | struct thread *thread; |
4319 | ) | |
4320 | { | |
7ee227f6 | 4321 | entry->thread = rb_entry(nd, struct thread_rb_node, rb_node)->thread; |
896cbb56 DA |
4322 | } |
4323 | ||
1302d88e ACM |
4324 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
4325 | { | |
96c14451 ACM |
4326 | size_t printed = trace__fprintf_threads_header(fp); |
4327 | struct rb_node *nd; | |
91e467bc | 4328 | int i; |
1302d88e | 4329 | |
91e467bc KL |
4330 | for (i = 0; i < THREADS__TABLE_SIZE; i++) { |
4331 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i); | |
96c14451 | 4332 | |
91e467bc KL |
4333 | if (threads == NULL) { |
4334 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
4335 | return 0; | |
4336 | } | |
896cbb56 | 4337 | |
91e467bc KL |
4338 | resort_rb__for_each_entry(nd, threads) |
4339 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); | |
96c14451 | 4340 | |
91e467bc KL |
4341 | resort_rb__delete(threads); |
4342 | } | |
96c14451 | 4343 | return printed; |
1302d88e ACM |
4344 | } |
4345 | ||
ae9ed035 ACM |
4346 | static int trace__set_duration(const struct option *opt, const char *str, |
4347 | int unset __maybe_unused) | |
4348 | { | |
4349 | struct trace *trace = opt->value; | |
4350 | ||
4351 | trace->duration_filter = atof(str); | |
4352 | return 0; | |
4353 | } | |
4354 | ||
6a0b3aba ACM |
4355 | static int trace__set_filter_pids_from_option(const struct option *opt, const char *str, |
4356 | int unset __maybe_unused) | |
f078c385 ACM |
4357 | { |
4358 | int ret = -1; | |
4359 | size_t i; | |
4360 | struct trace *trace = opt->value; | |
4361 | /* | |
4362 | * FIXME: introduce a intarray class, plain parse csv and create a | |
4363 | * { int nr, int entries[] } struct... | |
4364 | */ | |
4365 | struct intlist *list = intlist__new(str); | |
4366 | ||
4367 | if (list == NULL) | |
4368 | return -1; | |
4369 | ||
4370 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
4371 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
4372 | ||
4373 | if (trace->filter_pids.entries == NULL) | |
4374 | goto out; | |
4375 | ||
4376 | trace->filter_pids.entries[0] = getpid(); | |
4377 | ||
4378 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
4379 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
4380 | ||
4381 | intlist__delete(list); | |
4382 | ret = 0; | |
4383 | out: | |
4384 | return ret; | |
4385 | } | |
4386 | ||
c24ff998 ACM |
4387 | static int trace__open_output(struct trace *trace, const char *filename) |
4388 | { | |
4389 | struct stat st; | |
4390 | ||
4391 | if (!stat(filename, &st) && st.st_size) { | |
4392 | char oldname[PATH_MAX]; | |
4393 | ||
4394 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
4395 | unlink(oldname); | |
4396 | rename(filename, oldname); | |
4397 | } | |
4398 | ||
4399 | trace->output = fopen(filename, "w"); | |
4400 | ||
4401 | return trace->output == NULL ? -errno : 0; | |
4402 | } | |
4403 | ||
598d02c5 SF |
4404 | static int parse_pagefaults(const struct option *opt, const char *str, |
4405 | int unset __maybe_unused) | |
4406 | { | |
4407 | int *trace_pgfaults = opt->value; | |
4408 | ||
4409 | if (strcmp(str, "all") == 0) | |
4410 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
4411 | else if (strcmp(str, "maj") == 0) | |
4412 | *trace_pgfaults |= TRACE_PFMAJ; | |
4413 | else if (strcmp(str, "min") == 0) | |
4414 | *trace_pgfaults |= TRACE_PFMIN; | |
4415 | else | |
4416 | return -1; | |
4417 | ||
4418 | return 0; | |
4419 | } | |
4420 | ||
206d635a | 4421 | static void evlist__set_default_evsel_handler(struct evlist *evlist, void *handler) |
14a052df | 4422 | { |
32dcd021 | 4423 | struct evsel *evsel; |
14a052df | 4424 | |
206d635a ACM |
4425 | evlist__for_each_entry(evlist, evsel) { |
4426 | if (evsel->handler == NULL) | |
4427 | evsel->handler = handler; | |
4428 | } | |
14a052df ACM |
4429 | } |
4430 | ||
362222f8 ACM |
4431 | static void evsel__set_syscall_arg_fmt(struct evsel *evsel, const char *name) |
4432 | { | |
4433 | struct syscall_arg_fmt *fmt = evsel__syscall_arg_fmt(evsel); | |
4434 | ||
4435 | if (fmt) { | |
60995604 | 4436 | const struct syscall_fmt *scfmt = syscall_fmt__find(name); |
362222f8 ACM |
4437 | |
4438 | if (scfmt) { | |
4439 | int skip = 0; | |
4440 | ||
4441 | if (strcmp(evsel->tp_format->format.fields->name, "__syscall_nr") == 0 || | |
4442 | strcmp(evsel->tp_format->format.fields->name, "nr") == 0) | |
4443 | ++skip; | |
4444 | ||
4445 | memcpy(fmt + skip, scfmt->arg, (evsel->tp_format->format.nr_fields - skip) * sizeof(*fmt)); | |
4446 | } | |
4447 | } | |
4448 | } | |
4449 | ||
63503dba | 4450 | static int evlist__set_syscall_tp_fields(struct evlist *evlist) |
d32855fa | 4451 | { |
32dcd021 | 4452 | struct evsel *evsel; |
d32855fa ACM |
4453 | |
4454 | evlist__for_each_entry(evlist, evsel) { | |
4455 | if (evsel->priv || !evsel->tp_format) | |
4456 | continue; | |
4457 | ||
947b843c | 4458 | if (strcmp(evsel->tp_format->system, "syscalls")) { |
794bca26 | 4459 | evsel__init_tp_arg_scnprintf(evsel); |
d32855fa | 4460 | continue; |
947b843c | 4461 | } |
d32855fa | 4462 | |
794bca26 | 4463 | if (evsel__init_syscall_tp(evsel)) |
d32855fa ACM |
4464 | return -1; |
4465 | ||
4466 | if (!strncmp(evsel->tp_format->name, "sys_enter_", 10)) { | |
fecd9907 | 4467 | struct syscall_tp *sc = __evsel__syscall_tp(evsel); |
d32855fa ACM |
4468 | |
4469 | if (__tp_field__init_ptr(&sc->args, sc->id.offset + sizeof(u64))) | |
4470 | return -1; | |
362222f8 ACM |
4471 | |
4472 | evsel__set_syscall_arg_fmt(evsel, evsel->tp_format->name + sizeof("sys_enter_") - 1); | |
d32855fa | 4473 | } else if (!strncmp(evsel->tp_format->name, "sys_exit_", 9)) { |
fecd9907 | 4474 | struct syscall_tp *sc = __evsel__syscall_tp(evsel); |
d32855fa ACM |
4475 | |
4476 | if (__tp_field__init_uint(&sc->ret, sizeof(u64), sc->id.offset + sizeof(u64), evsel->needs_swap)) | |
4477 | return -1; | |
362222f8 ACM |
4478 | |
4479 | evsel__set_syscall_arg_fmt(evsel, evsel->tp_format->name + sizeof("sys_exit_") - 1); | |
d32855fa ACM |
4480 | } |
4481 | } | |
4482 | ||
4483 | return 0; | |
4484 | } | |
4485 | ||
017037ff ACM |
4486 | /* |
4487 | * XXX: Hackish, just splitting the combined -e+--event (syscalls | |
4488 | * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use | |
4489 | * existing facilities unchanged (trace->ev_qualifier + parse_options()). | |
4490 | * | |
4491 | * It'd be better to introduce a parse_options() variant that would return a | |
4492 | * list with the terms it didn't match to an event... | |
4493 | */ | |
4494 | static int trace__parse_events_option(const struct option *opt, const char *str, | |
4495 | int unset __maybe_unused) | |
4496 | { | |
4497 | struct trace *trace = (struct trace *)opt->value; | |
4498 | const char *s = str; | |
4499 | char *sep = NULL, *lists[2] = { NULL, NULL, }; | |
27702bcf | 4500 | int len = strlen(str) + 1, err = -1, list, idx; |
017037ff ACM |
4501 | char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); |
4502 | char group_name[PATH_MAX]; | |
60995604 | 4503 | const struct syscall_fmt *fmt; |
017037ff ACM |
4504 | |
4505 | if (strace_groups_dir == NULL) | |
4506 | return -1; | |
4507 | ||
4508 | if (*s == '!') { | |
4509 | ++s; | |
4510 | trace->not_ev_qualifier = true; | |
4511 | } | |
4512 | ||
4513 | while (1) { | |
4514 | if ((sep = strchr(s, ',')) != NULL) | |
4515 | *sep = '\0'; | |
4516 | ||
4517 | list = 0; | |
27702bcf ACM |
4518 | if (syscalltbl__id(trace->sctbl, s) >= 0 || |
4519 | syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) { | |
017037ff | 4520 | list = 1; |
f932184e ACM |
4521 | goto do_concat; |
4522 | } | |
4523 | ||
4524 | fmt = syscall_fmt__find_by_alias(s); | |
4525 | if (fmt != NULL) { | |
4526 | list = 1; | |
4527 | s = fmt->name; | |
017037ff ACM |
4528 | } else { |
4529 | path__join(group_name, sizeof(group_name), strace_groups_dir, s); | |
4530 | if (access(group_name, R_OK) == 0) | |
4531 | list = 1; | |
4532 | } | |
f932184e | 4533 | do_concat: |
017037ff ACM |
4534 | if (lists[list]) { |
4535 | sprintf(lists[list] + strlen(lists[list]), ",%s", s); | |
4536 | } else { | |
4537 | lists[list] = malloc(len); | |
4538 | if (lists[list] == NULL) | |
4539 | goto out; | |
4540 | strcpy(lists[list], s); | |
4541 | } | |
4542 | ||
4543 | if (!sep) | |
4544 | break; | |
4545 | ||
4546 | *sep = ','; | |
4547 | s = sep + 1; | |
4548 | } | |
4549 | ||
4550 | if (lists[1] != NULL) { | |
4551 | struct strlist_config slist_config = { | |
4552 | .dirname = strace_groups_dir, | |
4553 | }; | |
4554 | ||
4555 | trace->ev_qualifier = strlist__new(lists[1], &slist_config); | |
4556 | if (trace->ev_qualifier == NULL) { | |
4557 | fputs("Not enough memory to parse event qualifier", trace->output); | |
4558 | goto out; | |
4559 | } | |
4560 | ||
4561 | if (trace__validate_ev_qualifier(trace)) | |
4562 | goto out; | |
b912885a | 4563 | trace->trace_syscalls = true; |
017037ff ACM |
4564 | } |
4565 | ||
4566 | err = 0; | |
4567 | ||
4568 | if (lists[0]) { | |
411ad22e IR |
4569 | struct parse_events_option_args parse_events_option_args = { |
4570 | .evlistp = &trace->evlist, | |
4571 | }; | |
a6293f36 | 4572 | struct option o = { |
411ad22e | 4573 | .value = &parse_events_option_args, |
a6293f36 | 4574 | }; |
017037ff ACM |
4575 | err = parse_events_option(&o, lists[0], 0); |
4576 | } | |
4577 | out: | |
659ede7d RM |
4578 | free(strace_groups_dir); |
4579 | free(lists[0]); | |
4580 | free(lists[1]); | |
017037ff ACM |
4581 | if (sep) |
4582 | *sep = ','; | |
4583 | ||
4584 | return err; | |
4585 | } | |
4586 | ||
9ea42ba4 ACM |
4587 | static int trace__parse_cgroups(const struct option *opt, const char *str, int unset) |
4588 | { | |
4589 | struct trace *trace = opt->value; | |
4590 | ||
a6293f36 SI |
4591 | if (!list_empty(&trace->evlist->core.entries)) { |
4592 | struct option o = { | |
4593 | .value = &trace->evlist, | |
4594 | }; | |
4595 | return parse_cgroups(&o, str, unset); | |
4596 | } | |
9ea42ba4 ACM |
4597 | trace->cgroup = evlist__findnew_cgroup(trace->evlist, str); |
4598 | ||
4599 | return 0; | |
4600 | } | |
4601 | ||
ac96287c ACM |
4602 | static int trace__config(const char *var, const char *value, void *arg) |
4603 | { | |
e7c634fc | 4604 | struct trace *trace = arg; |
ac96287c ACM |
4605 | int err = 0; |
4606 | ||
4607 | if (!strcmp(var, "trace.add_events")) { | |
7e035929 ACM |
4608 | trace->perfconfig_events = strdup(value); |
4609 | if (trace->perfconfig_events == NULL) { | |
4610 | pr_err("Not enough memory for %s\n", "trace.add_events"); | |
4611 | return -1; | |
4612 | } | |
b036146f ACM |
4613 | } else if (!strcmp(var, "trace.show_timestamp")) { |
4614 | trace->show_tstamp = perf_config_bool(var, value); | |
42e4a52d ACM |
4615 | } else if (!strcmp(var, "trace.show_duration")) { |
4616 | trace->show_duration = perf_config_bool(var, value); | |
9d6dc178 ACM |
4617 | } else if (!strcmp(var, "trace.show_arg_names")) { |
4618 | trace->show_arg_names = perf_config_bool(var, value); | |
4619 | if (!trace->show_arg_names) | |
4620 | trace->show_zeros = true; | |
e7c634fc | 4621 | } else if (!strcmp(var, "trace.show_zeros")) { |
9d6dc178 ACM |
4622 | bool new_show_zeros = perf_config_bool(var, value); |
4623 | if (!trace->show_arg_names && !new_show_zeros) { | |
4624 | pr_warning("trace.show_zeros has to be set when trace.show_arg_names=no\n"); | |
4625 | goto out; | |
4626 | } | |
4627 | trace->show_zeros = new_show_zeros; | |
c65c83ff ACM |
4628 | } else if (!strcmp(var, "trace.show_prefix")) { |
4629 | trace->show_string_prefix = perf_config_bool(var, value); | |
d32de87e ACM |
4630 | } else if (!strcmp(var, "trace.no_inherit")) { |
4631 | trace->opts.no_inherit = perf_config_bool(var, value); | |
9ed45d59 ACM |
4632 | } else if (!strcmp(var, "trace.args_alignment")) { |
4633 | int args_alignment = 0; | |
4634 | if (perf_config_int(&args_alignment, var, value) == 0) | |
4635 | trace->args_alignment = args_alignment; | |
f11b2803 ACM |
4636 | } else if (!strcmp(var, "trace.tracepoint_beautifiers")) { |
4637 | if (strcasecmp(value, "libtraceevent") == 0) | |
4638 | trace->libtraceevent_print = true; | |
4639 | else if (strcasecmp(value, "libbeauty") == 0) | |
4640 | trace->libtraceevent_print = false; | |
ac96287c | 4641 | } |
9d6dc178 | 4642 | out: |
ac96287c ACM |
4643 | return err; |
4644 | } | |
4645 | ||
6c7f0ab0 RM |
4646 | static void trace__exit(struct trace *trace) |
4647 | { | |
f2ebf8ff RM |
4648 | int i; |
4649 | ||
6c7f0ab0 | 4650 | strlist__delete(trace->ev_qualifier); |
9997d5dd | 4651 | zfree(&trace->ev_qualifier_ids.entries); |
f2ebf8ff RM |
4652 | if (trace->syscalls.table) { |
4653 | for (i = 0; i <= trace->sctbl->syscalls.max_id; i++) | |
4654 | syscall__exit(&trace->syscalls.table[i]); | |
9997d5dd | 4655 | zfree(&trace->syscalls.table); |
f2ebf8ff | 4656 | } |
6c7f0ab0 RM |
4657 | syscalltbl__delete(trace->sctbl); |
4658 | zfree(&trace->perfconfig_events); | |
4659 | } | |
4660 | ||
5e6da6be IR |
4661 | #ifdef HAVE_BPF_SKEL |
4662 | static int bpf__setup_bpf_output(struct evlist *evlist) | |
4663 | { | |
4664 | int err = parse_event(evlist, "bpf-output/no-inherit=1,name=__augmented_syscalls__/"); | |
4665 | ||
4666 | if (err) | |
4667 | pr_debug("ERROR: failed to create the \"__augmented_syscalls__\" bpf-output event\n"); | |
4668 | ||
4669 | return err; | |
4670 | } | |
4671 | #endif | |
4672 | ||
b0ad8ea6 | 4673 | int cmd_trace(int argc, const char **argv) |
514f1c67 | 4674 | { |
6fdd9cb7 | 4675 | const char *trace_usage[] = { |
f15eb531 NK |
4676 | "perf trace [<options>] [<command>]", |
4677 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
4678 | "perf trace record [<options>] [<command>]", |
4679 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
4680 | NULL |
4681 | }; | |
4682 | struct trace trace = { | |
514f1c67 ACM |
4683 | .opts = { |
4684 | .target = { | |
4685 | .uid = UINT_MAX, | |
4686 | .uses_mmap = true, | |
4687 | }, | |
4688 | .user_freq = UINT_MAX, | |
4689 | .user_interval = ULLONG_MAX, | |
509051ea | 4690 | .no_buffering = true, |
38d5447d | 4691 | .mmap_pages = UINT_MAX, |
514f1c67 | 4692 | }, |
007d66a0 | 4693 | .output = stderr, |
50c95cbd | 4694 | .show_comm = true, |
b036146f | 4695 | .show_tstamp = true, |
42e4a52d | 4696 | .show_duration = true, |
9d6dc178 | 4697 | .show_arg_names = true, |
9ed45d59 | 4698 | .args_alignment = 70, |
b912885a | 4699 | .trace_syscalls = false, |
44621819 | 4700 | .kernel_syscallchains = false, |
05614993 | 4701 | .max_stack = UINT_MAX, |
5067a8cd | 4702 | .max_events = ULONG_MAX, |
514f1c67 | 4703 | }; |
c24ff998 | 4704 | const char *output_name = NULL; |
514f1c67 | 4705 | const struct option trace_options[] = { |
017037ff ACM |
4706 | OPT_CALLBACK('e', "event", &trace, "event", |
4707 | "event/syscall selector. use 'perf list' to list available events", | |
4708 | trace__parse_events_option), | |
d4097f19 ACM |
4709 | OPT_CALLBACK(0, "filter", &trace.evlist, "filter", |
4710 | "event filter", parse_filter), | |
50c95cbd ACM |
4711 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
4712 | "show the thread COMM next to its id"), | |
c522739d | 4713 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
017037ff ACM |
4714 | OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace", |
4715 | trace__parse_events_option), | |
c24ff998 | 4716 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 4717 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
4718 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
4719 | "trace events on existing process id"), | |
ac9be8ee | 4720 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 4721 | "trace events on existing thread id"), |
fa0e4ffe | 4722 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
6a0b3aba | 4723 | "pids to filter (by the kernel)", trace__set_filter_pids_from_option), |
ac9be8ee | 4724 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 4725 | "system-wide collection from all CPUs"), |
ac9be8ee | 4726 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 4727 | "list of cpus to monitor"), |
6810fc91 | 4728 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 4729 | "child tasks do not inherit counters"), |
994a1f78 | 4730 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
25f84702 | 4731 | "number of mmap data pages", evlist__parse_mmap_pages), |
ac9be8ee | 4732 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 4733 | "user to profile"), |
ae9ed035 ACM |
4734 | OPT_CALLBACK(0, "duration", &trace, "float", |
4735 | "show only events with duration > N.M ms", | |
4736 | trace__set_duration), | |
1302d88e | 4737 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 4738 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
4739 | OPT_BOOLEAN('T', "time", &trace.full_time, |
4740 | "Show full timestamp, not time relative to first start"), | |
0a6545bd ACM |
4741 | OPT_BOOLEAN(0, "failure", &trace.failure_only, |
4742 | "Show only syscalls that failed"), | |
fd2eabaf DA |
4743 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
4744 | "Show only syscall summary with statistics"), | |
4745 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
4746 | "Show all syscalls and summary with statistics"), | |
b88b14db ACM |
4747 | OPT_BOOLEAN(0, "errno-summary", &trace.errno_summary, |
4748 | "Show errno stats per syscall, use with -s or -S"), | |
598d02c5 SF |
4749 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
4750 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 4751 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 4752 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
4753 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
4754 | "record_mode[,record_size]", record_callchain_help, | |
4755 | &record_parse_callchain_opt), | |
f11b2803 ACM |
4756 | OPT_BOOLEAN(0, "libtraceevent_print", &trace.libtraceevent_print, |
4757 | "Use libtraceevent to print the tracepoint arguments."), | |
44621819 ACM |
4758 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
4759 | "Show the kernel callchains on the syscall exit path"), | |
5067a8cd ACM |
4760 | OPT_ULONG(0, "max-events", &trace.max_events, |
4761 | "Set the maximum number of events to print, exit after that is reached. "), | |
5cf9c84e ACM |
4762 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
4763 | "Set the minimum stack depth when parsing the callchain, " | |
4764 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
4765 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
4766 | "Set the maximum stack depth when parsing the callchain, " | |
4767 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 4768 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
a761a8d1 ACM |
4769 | OPT_BOOLEAN(0, "sort-events", &trace.sort_events, |
4770 | "Sort batch of events before processing, use if getting out of order events"), | |
591421e1 ACM |
4771 | OPT_BOOLEAN(0, "print-sample", &trace.print_sample, |
4772 | "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"), | |
3fcb10e4 | 4773 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 4774 | "per thread proc mmap processing timeout in ms"), |
9ea42ba4 ACM |
4775 | OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only", |
4776 | trace__parse_cgroups), | |
cb4b9e68 | 4777 | OPT_INTEGER('D', "delay", &trace.opts.target.initial_delay, |
e36b7821 AB |
4778 | "ms to wait before starting measurement after program " |
4779 | "start"), | |
22ac4318 | 4780 | OPTS_EVSWITCH(&trace.evswitch), |
514f1c67 ACM |
4781 | OPT_END() |
4782 | }; | |
ccd62a89 | 4783 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 4784 | bool mmap_pages_user_set = true; |
32dcd021 | 4785 | struct evsel *evsel; |
6fdd9cb7 | 4786 | const char * const trace_subcommands[] = { "record", NULL }; |
78e890ea | 4787 | int err = -1; |
32caf0d1 | 4788 | char bf[BUFSIZ]; |
de9f498d | 4789 | struct sigaction sigchld_act; |
514f1c67 | 4790 | |
4d08cb80 ACM |
4791 | signal(SIGSEGV, sighandler_dump_stack); |
4792 | signal(SIGFPE, sighandler_dump_stack); | |
de9f498d CD |
4793 | signal(SIGINT, sighandler_interrupt); |
4794 | ||
4795 | memset(&sigchld_act, 0, sizeof(sigchld_act)); | |
4796 | sigchld_act.sa_flags = SA_SIGINFO; | |
4797 | sigchld_act.sa_sigaction = sighandler_chld; | |
4798 | sigaction(SIGCHLD, &sigchld_act, NULL); | |
4d08cb80 | 4799 | |
0f98b11c | 4800 | trace.evlist = evlist__new(); |
fd0db102 | 4801 | trace.sctbl = syscalltbl__new(); |
14a052df | 4802 | |
fd0db102 | 4803 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 4804 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 4805 | err = -ENOMEM; |
14a052df ACM |
4806 | goto out; |
4807 | } | |
4808 | ||
c3e78a34 ACM |
4809 | /* |
4810 | * Parsing .perfconfig may entail creating a BPF event, that may need | |
4811 | * to create BPF maps, so bump RLIM_MEMLOCK as the default 64K setting | |
4812 | * is too small. This affects just this process, not touching the | |
4813 | * global setting. If it fails we'll get something in 'perf trace -v' | |
4814 | * to help diagnose the problem. | |
4815 | */ | |
4816 | rlimit__bump_memlock(); | |
4817 | ||
ac96287c ACM |
4818 | err = perf_config(trace__config, &trace); |
4819 | if (err) | |
4820 | goto out; | |
4821 | ||
6fdd9cb7 YS |
4822 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
4823 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
8bd436b0 ACM |
4824 | |
4825 | /* | |
4826 | * Here we already passed thru trace__parse_events_option() and it has | |
4827 | * already figured out if -e syscall_name, if not but if --event | |
4828 | * foo:bar was used, the user is interested _just_ in those, say, | |
4829 | * tracepoint events, not in the strace-like syscall-name-based mode. | |
4830 | * | |
4831 | * This is important because we need to check if strace-like mode is | |
4832 | * needed to decided if we should filter out the eBPF | |
4833 | * __augmented_syscalls__ code, if it is in the mix, say, via | |
4834 | * .perfconfig trace.add_events, and filter those out. | |
4835 | */ | |
4836 | if (!trace.trace_syscalls && !trace.trace_pgfaults && | |
4837 | trace.evlist->core.nr_entries == 0 /* Was --events used? */) { | |
4838 | trace.trace_syscalls = true; | |
4839 | } | |
7e035929 ACM |
4840 | /* |
4841 | * Now that we have --verbose figured out, lets see if we need to parse | |
4842 | * events from .perfconfig, so that if those events fail parsing, say some | |
4843 | * BPF program fails, then we'll be able to use --verbose to see what went | |
4844 | * wrong in more detail. | |
4845 | */ | |
4846 | if (trace.perfconfig_events != NULL) { | |
a910e466 | 4847 | struct parse_events_error parse_err; |
7e035929 | 4848 | |
07eafd4e | 4849 | parse_events_error__init(&parse_err); |
7e035929 | 4850 | err = parse_events(trace.evlist, trace.perfconfig_events, &parse_err); |
07eafd4e | 4851 | if (err) |
6c191289 | 4852 | parse_events_error__print(&parse_err, trace.perfconfig_events); |
07eafd4e IR |
4853 | parse_events_error__exit(&parse_err); |
4854 | if (err) | |
7e035929 | 4855 | goto out; |
7e035929 | 4856 | } |
fd2eabaf | 4857 | |
9ea42ba4 ACM |
4858 | if ((nr_cgroups || trace.cgroup) && !trace.opts.target.system_wide) { |
4859 | usage_with_options_msg(trace_usage, trace_options, | |
4860 | "cgroup monitoring only available in system-wide mode"); | |
4861 | } | |
4862 | ||
5e6da6be | 4863 | #ifdef HAVE_BPF_SKEL |
83a0943b ACM |
4864 | if (!trace.trace_syscalls) |
4865 | goto skip_augmentation; | |
4866 | ||
5e6da6be IR |
4867 | trace.skel = augmented_raw_syscalls_bpf__open(); |
4868 | if (!trace.skel) { | |
4869 | pr_debug("Failed to open augmented syscalls BPF skeleton"); | |
4870 | } else { | |
4871 | /* | |
4872 | * Disable attaching the BPF programs except for sys_enter and | |
4873 | * sys_exit that tail call into this as necessary. | |
4874 | */ | |
4875 | struct bpf_program *prog; | |
59247e33 | 4876 | |
5e6da6be IR |
4877 | bpf_object__for_each_program(prog, trace.skel->obj) { |
4878 | if (prog != trace.skel->progs.sys_enter && prog != trace.skel->progs.sys_exit) | |
4879 | bpf_program__set_autoattach(prog, /*autoattach=*/false); | |
4880 | } | |
4881 | ||
4882 | err = augmented_raw_syscalls_bpf__load(trace.skel); | |
4883 | ||
4884 | if (err < 0) { | |
4885 | libbpf_strerror(err, bf, sizeof(bf)); | |
4886 | pr_debug("Failed to load augmented syscalls BPF skeleton: %s\n", bf); | |
4887 | } else { | |
4888 | augmented_raw_syscalls_bpf__attach(trace.skel); | |
4889 | trace__add_syscall_newtp(&trace); | |
ff7a4f98 ACM |
4890 | } |
4891 | } | |
4892 | ||
5e6da6be IR |
4893 | err = bpf__setup_bpf_output(trace.evlist); |
4894 | if (err) { | |
4895 | libbpf_strerror(err, bf, sizeof(bf)); | |
4896 | pr_err("ERROR: Setup BPF output event failed: %s\n", bf); | |
4897 | goto out; | |
4898 | } | |
4899 | trace.syscalls.events.bpf_output = evlist__last(trace.evlist); | |
4900 | assert(!strcmp(evsel__name(trace.syscalls.events.bpf_output), "__augmented_syscalls__")); | |
83a0943b | 4901 | skip_augmentation: |
5e6da6be IR |
4902 | #endif |
4903 | err = -1; | |
4904 | ||
598d02c5 SF |
4905 | if (trace.trace_pgfaults) { |
4906 | trace.opts.sample_address = true; | |
4907 | trace.opts.sample_time = true; | |
4908 | } | |
4909 | ||
f3e459d1 ACM |
4910 | if (trace.opts.mmap_pages == UINT_MAX) |
4911 | mmap_pages_user_set = false; | |
4912 | ||
05614993 | 4913 | if (trace.max_stack == UINT_MAX) { |
029c75e5 | 4914 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl__max_stack(); |
05614993 ACM |
4915 | max_stack_user_set = false; |
4916 | } | |
4917 | ||
4918 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
75d50117 | 4919 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled) { |
05614993 | 4920 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
75d50117 | 4921 | } |
05614993 ACM |
4922 | #endif |
4923 | ||
2ddd5c04 | 4924 | if (callchain_param.enabled) { |
f3e459d1 ACM |
4925 | if (!mmap_pages_user_set && geteuid() == 0) |
4926 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
4927 | ||
566a0885 | 4928 | symbol_conf.use_callchain = true; |
f3e459d1 | 4929 | } |
566a0885 | 4930 | |
6484d2f9 | 4931 | if (trace.evlist->core.nr_entries > 0) { |
206d635a | 4932 | evlist__set_default_evsel_handler(trace.evlist, trace__event_handler); |
d32855fa ACM |
4933 | if (evlist__set_syscall_tp_fields(trace.evlist)) { |
4934 | perror("failed to set syscalls:* tracepoint fields"); | |
4935 | goto out; | |
4936 | } | |
4937 | } | |
14a052df | 4938 | |
a761a8d1 ACM |
4939 | if (trace.sort_events) { |
4940 | ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace); | |
4941 | ordered_events__set_copy_on_queue(&trace.oe.data, true); | |
4942 | } | |
028713aa | 4943 | |
b1a9e253 ACM |
4944 | /* |
4945 | * If we are augmenting syscalls, then combine what we put in the | |
4946 | * __augmented_syscalls__ BPF map with what is in the | |
4947 | * syscalls:sys_exit_FOO tracepoints, i.e. just like we do without BPF, | |
4948 | * combining raw_syscalls:sys_enter with raw_syscalls:sys_exit. | |
4949 | * | |
4950 | * We'll switch to look at two BPF maps, one for sys_enter and the | |
4951 | * other for sys_exit when we start augmenting the sys_exit paths with | |
4952 | * buffers that are being copied from kernel to userspace, think 'read' | |
4953 | * syscall. | |
4954 | */ | |
5e6da6be | 4955 | if (trace.syscalls.events.bpf_output) { |
b1a9e253 | 4956 | evlist__for_each_entry(trace.evlist, evsel) { |
8ab2e96d | 4957 | bool raw_syscalls_sys_exit = strcmp(evsel__name(evsel), "raw_syscalls:sys_exit") == 0; |
cd26ea6d ACM |
4958 | |
4959 | if (raw_syscalls_sys_exit) { | |
4960 | trace.raw_augmented_syscalls = true; | |
4961 | goto init_augmented_syscall_tp; | |
4962 | } | |
4963 | ||
5e6da6be | 4964 | if (trace.syscalls.events.bpf_output->priv == NULL && |
8ab2e96d | 4965 | strstr(evsel__name(evsel), "syscalls:sys_enter")) { |
5e6da6be | 4966 | struct evsel *augmented = trace.syscalls.events.bpf_output; |
794bca26 ACM |
4967 | if (evsel__init_augmented_syscall_tp(augmented, evsel) || |
4968 | evsel__init_augmented_syscall_tp_args(augmented)) | |
b9b6a2ea | 4969 | goto out; |
b119970a ACM |
4970 | /* |
4971 | * Augmented is __augmented_syscalls__ BPF_OUTPUT event | |
4972 | * Above we made sure we can get from the payload the tp fields | |
4973 | * that we get from syscalls:sys_enter tracefs format file. | |
4974 | */ | |
b9b6a2ea | 4975 | augmented->handler = trace__sys_enter; |
b119970a ACM |
4976 | /* |
4977 | * Now we do the same for the *syscalls:sys_enter event so that | |
4978 | * if we handle it directly, i.e. if the BPF prog returns 0 so | |
4979 | * as not to filter it, then we'll handle it just like we would | |
4980 | * for the BPF_OUTPUT one: | |
4981 | */ | |
794bca26 ACM |
4982 | if (evsel__init_augmented_syscall_tp(evsel, evsel) || |
4983 | evsel__init_augmented_syscall_tp_args(evsel)) | |
b119970a ACM |
4984 | goto out; |
4985 | evsel->handler = trace__sys_enter; | |
b9b6a2ea ACM |
4986 | } |
4987 | ||
8ab2e96d | 4988 | if (strstarts(evsel__name(evsel), "syscalls:sys_exit_")) { |
b9b6a2ea | 4989 | struct syscall_tp *sc; |
cd26ea6d | 4990 | init_augmented_syscall_tp: |
794bca26 | 4991 | if (evsel__init_augmented_syscall_tp(evsel, evsel)) |
b9b6a2ea | 4992 | goto out; |
fecd9907 | 4993 | sc = __evsel__syscall_tp(evsel); |
b9b6a2ea ACM |
4994 | /* |
4995 | * For now with BPF raw_augmented we hook into | |
4996 | * raw_syscalls:sys_enter and there we get all | |
4997 | * 6 syscall args plus the tracepoint common | |
4998 | * fields and the syscall_nr (another long). | |
4999 | * So we check if that is the case and if so | |
5000 | * don't look after the sc->args_size but | |
5001 | * always after the full raw_syscalls:sys_enter | |
5002 | * payload, which is fixed. | |
5003 | * | |
5004 | * We'll revisit this later to pass | |
5005 | * s->args_size to the BPF augmenter (now | |
5006 | * tools/perf/examples/bpf/augmented_raw_syscalls.c, | |
5007 | * so that it copies only what we need for each | |
5008 | * syscall, like what happens when we use | |
5009 | * syscalls:sys_enter_NAME, so that we reduce | |
5010 | * the kernel/userspace traffic to just what is | |
5011 | * needed for each syscall. | |
5012 | */ | |
5013 | if (trace.raw_augmented_syscalls) | |
5014 | trace.raw_augmented_syscalls_args_size = (6 + 1) * sizeof(long) + sc->id.offset; | |
794bca26 | 5015 | evsel__init_augmented_syscall_tp_ret(evsel); |
b1a9e253 ACM |
5016 | evsel->handler = trace__sys_exit; |
5017 | } | |
5018 | } | |
5019 | } | |
5020 | ||
1e28fe0a SF |
5021 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
5022 | return trace__record(&trace, argc-1, &argv[1]); | |
5023 | ||
b88b14db ACM |
5024 | /* Using just --errno-summary will trigger --summary */ |
5025 | if (trace.errno_summary && !trace.summary && !trace.summary_only) | |
5026 | trace.summary_only = true; | |
5027 | ||
1e28fe0a SF |
5028 | /* summary_only implies summary option, but don't overwrite summary if set */ |
5029 | if (trace.summary_only) | |
5030 | trace.summary = trace.summary_only; | |
5031 | ||
c24ff998 ACM |
5032 | if (output_name != NULL) { |
5033 | err = trace__open_output(&trace, output_name); | |
5034 | if (err < 0) { | |
5035 | perror("failed to create output file"); | |
5036 | goto out; | |
5037 | } | |
5038 | } | |
5039 | ||
22ac4318 ACM |
5040 | err = evswitch__init(&trace.evswitch, trace.evlist, stderr); |
5041 | if (err) | |
5042 | goto out_close; | |
5043 | ||
602ad878 | 5044 | err = target__validate(&trace.opts.target); |
32caf0d1 | 5045 | if (err) { |
602ad878 | 5046 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
5047 | fprintf(trace.output, "%s", bf); |
5048 | goto out_close; | |
32caf0d1 NK |
5049 | } |
5050 | ||
602ad878 | 5051 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 5052 | if (err) { |
602ad878 | 5053 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
5054 | fprintf(trace.output, "%s", bf); |
5055 | goto out_close; | |
514f1c67 ACM |
5056 | } |
5057 | ||
602ad878 | 5058 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
5059 | trace.opts.target.system_wide = true; |
5060 | ||
6810fc91 DA |
5061 | if (input_name) |
5062 | err = trace__replay(&trace); | |
5063 | else | |
5064 | err = trace__run(&trace, argc, argv); | |
1302d88e | 5065 | |
c24ff998 ACM |
5066 | out_close: |
5067 | if (output_name != NULL) | |
5068 | fclose(trace.output); | |
5069 | out: | |
6c7f0ab0 | 5070 | trace__exit(&trace); |
5e6da6be IR |
5071 | #ifdef HAVE_BPF_SKEL |
5072 | augmented_raw_syscalls_bpf__destroy(trace.skel); | |
5073 | #endif | |
1302d88e | 5074 | return err; |
514f1c67 | 5075 | } |