Commit | Line | Data |
---|---|---|
a598bb5e ACM |
1 | /* |
2 | * builtin-trace.c | |
3 | * | |
4 | * Builtin 'trace' command: | |
5 | * | |
6 | * Display a continuously updated trace of any workload, CPU, specific PID, | |
7 | * system wide, etc. Default format is loosely strace like, but any other | |
8 | * event may be specified using --event. | |
9 | * | |
10 | * Copyright (C) 2012, 2013, 2014, 2015 Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> | |
11 | * | |
12 | * Initially based on the 'trace' prototype by Thomas Gleixner: | |
13 | * | |
14 | * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'") | |
15 | * | |
16 | * Released under the GPL v2. (and only v2, not any later version) | |
17 | */ | |
18 | ||
4e319027 | 19 | #include <traceevent/event-parse.h> |
988bdb31 | 20 | #include <api/fs/tracing_path.h> |
514f1c67 | 21 | #include "builtin.h" |
752fde44 | 22 | #include "util/color.h" |
7c304ee0 | 23 | #include "util/debug.h" |
514f1c67 | 24 | #include "util/evlist.h" |
4b6ab94e | 25 | #include <subcmd/exec-cmd.h> |
752fde44 | 26 | #include "util/machine.h" |
9a3993d4 | 27 | #include "util/path.h" |
6810fc91 | 28 | #include "util/session.h" |
752fde44 | 29 | #include "util/thread.h" |
4b6ab94e | 30 | #include <subcmd/parse-options.h> |
2ae3a312 | 31 | #include "util/strlist.h" |
bdc89661 | 32 | #include "util/intlist.h" |
514f1c67 | 33 | #include "util/thread_map.h" |
bf2575c1 | 34 | #include "util/stat.h" |
fd5cead2 | 35 | #include "trace/beauty/beauty.h" |
97978b3e | 36 | #include "trace-event.h" |
9aca7f17 | 37 | #include "util/parse-events.h" |
ba504235 | 38 | #include "util/bpf-loader.h" |
566a0885 | 39 | #include "callchain.h" |
fea01392 | 40 | #include "print_binary.h" |
a067558e | 41 | #include "string2.h" |
fd0db102 | 42 | #include "syscalltbl.h" |
96c14451 | 43 | #include "rb_resort.h" |
514f1c67 | 44 | |
a43783ae | 45 | #include <errno.h> |
fd20e811 | 46 | #include <inttypes.h> |
fd0db102 | 47 | #include <libaudit.h> /* FIXME: Still needed for audit_errno_to_name */ |
514f1c67 | 48 | #include <stdlib.h> |
017037ff | 49 | #include <string.h> |
8dd2a131 | 50 | #include <linux/err.h> |
997bba8c ACM |
51 | #include <linux/filter.h> |
52 | #include <linux/audit.h> | |
877a7a11 | 53 | #include <linux/kernel.h> |
39878d49 | 54 | #include <linux/random.h> |
c6d4a494 | 55 | #include <linux/stringify.h> |
bd48c63e | 56 | #include <linux/time64.h> |
514f1c67 | 57 | |
3d689ed6 ACM |
58 | #include "sane_ctype.h" |
59 | ||
c188e7ac ACM |
60 | #ifndef O_CLOEXEC |
61 | # define O_CLOEXEC 02000000 | |
62 | #endif | |
63 | ||
d1d438a3 ACM |
64 | struct trace { |
65 | struct perf_tool tool; | |
fd0db102 | 66 | struct syscalltbl *sctbl; |
d1d438a3 ACM |
67 | struct { |
68 | int max; | |
69 | struct syscall *table; | |
70 | struct { | |
71 | struct perf_evsel *sys_enter, | |
72 | *sys_exit; | |
73 | } events; | |
74 | } syscalls; | |
75 | struct record_opts opts; | |
76 | struct perf_evlist *evlist; | |
77 | struct machine *host; | |
78 | struct thread *current; | |
79 | u64 base_time; | |
80 | FILE *output; | |
81 | unsigned long nr_events; | |
82 | struct strlist *ev_qualifier; | |
83 | struct { | |
84 | size_t nr; | |
85 | int *entries; | |
86 | } ev_qualifier_ids; | |
d1d438a3 ACM |
87 | struct { |
88 | size_t nr; | |
89 | pid_t *entries; | |
90 | } filter_pids; | |
91 | double duration_filter; | |
92 | double runtime_ms; | |
93 | struct { | |
94 | u64 vfs_getname, | |
95 | proc_getname; | |
96 | } stats; | |
c6d4a494 | 97 | unsigned int max_stack; |
5cf9c84e | 98 | unsigned int min_stack; |
d1d438a3 ACM |
99 | bool not_ev_qualifier; |
100 | bool live; | |
101 | bool full_time; | |
102 | bool sched; | |
103 | bool multiple_threads; | |
104 | bool summary; | |
105 | bool summary_only; | |
106 | bool show_comm; | |
107 | bool show_tool_stats; | |
108 | bool trace_syscalls; | |
44621819 | 109 | bool kernel_syscallchains; |
d1d438a3 ACM |
110 | bool force; |
111 | bool vfs_getname; | |
112 | int trace_pgfaults; | |
fd0db102 | 113 | int open_id; |
d1d438a3 | 114 | }; |
a1c2552d | 115 | |
77170988 ACM |
116 | struct tp_field { |
117 | int offset; | |
118 | union { | |
119 | u64 (*integer)(struct tp_field *field, struct perf_sample *sample); | |
120 | void *(*pointer)(struct tp_field *field, struct perf_sample *sample); | |
121 | }; | |
122 | }; | |
123 | ||
124 | #define TP_UINT_FIELD(bits) \ | |
125 | static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
126 | { \ | |
55d43bca DA |
127 | u##bits value; \ |
128 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
129 | return value; \ | |
77170988 ACM |
130 | } |
131 | ||
132 | TP_UINT_FIELD(8); | |
133 | TP_UINT_FIELD(16); | |
134 | TP_UINT_FIELD(32); | |
135 | TP_UINT_FIELD(64); | |
136 | ||
137 | #define TP_UINT_FIELD__SWAPPED(bits) \ | |
138 | static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \ | |
139 | { \ | |
55d43bca DA |
140 | u##bits value; \ |
141 | memcpy(&value, sample->raw_data + field->offset, sizeof(value)); \ | |
77170988 ACM |
142 | return bswap_##bits(value);\ |
143 | } | |
144 | ||
145 | TP_UINT_FIELD__SWAPPED(16); | |
146 | TP_UINT_FIELD__SWAPPED(32); | |
147 | TP_UINT_FIELD__SWAPPED(64); | |
148 | ||
149 | static int tp_field__init_uint(struct tp_field *field, | |
150 | struct format_field *format_field, | |
151 | bool needs_swap) | |
152 | { | |
153 | field->offset = format_field->offset; | |
154 | ||
155 | switch (format_field->size) { | |
156 | case 1: | |
157 | field->integer = tp_field__u8; | |
158 | break; | |
159 | case 2: | |
160 | field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16; | |
161 | break; | |
162 | case 4: | |
163 | field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32; | |
164 | break; | |
165 | case 8: | |
166 | field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64; | |
167 | break; | |
168 | default: | |
169 | return -1; | |
170 | } | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample) | |
176 | { | |
177 | return sample->raw_data + field->offset; | |
178 | } | |
179 | ||
180 | static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field) | |
181 | { | |
182 | field->offset = format_field->offset; | |
183 | field->pointer = tp_field__ptr; | |
184 | return 0; | |
185 | } | |
186 | ||
187 | struct syscall_tp { | |
188 | struct tp_field id; | |
189 | union { | |
190 | struct tp_field args, ret; | |
191 | }; | |
192 | }; | |
193 | ||
194 | static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel, | |
195 | struct tp_field *field, | |
196 | const char *name) | |
197 | { | |
198 | struct format_field *format_field = perf_evsel__field(evsel, name); | |
199 | ||
200 | if (format_field == NULL) | |
201 | return -1; | |
202 | ||
203 | return tp_field__init_uint(field, format_field, evsel->needs_swap); | |
204 | } | |
205 | ||
206 | #define perf_evsel__init_sc_tp_uint_field(evsel, name) \ | |
207 | ({ struct syscall_tp *sc = evsel->priv;\ | |
208 | perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); }) | |
209 | ||
210 | static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel, | |
211 | struct tp_field *field, | |
212 | const char *name) | |
213 | { | |
214 | struct format_field *format_field = perf_evsel__field(evsel, name); | |
215 | ||
216 | if (format_field == NULL) | |
217 | return -1; | |
218 | ||
219 | return tp_field__init_ptr(field, format_field); | |
220 | } | |
221 | ||
222 | #define perf_evsel__init_sc_tp_ptr_field(evsel, name) \ | |
223 | ({ struct syscall_tp *sc = evsel->priv;\ | |
224 | perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); }) | |
225 | ||
226 | static void perf_evsel__delete_priv(struct perf_evsel *evsel) | |
227 | { | |
04662523 | 228 | zfree(&evsel->priv); |
77170988 ACM |
229 | perf_evsel__delete(evsel); |
230 | } | |
231 | ||
96695d44 NK |
232 | static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler) |
233 | { | |
234 | evsel->priv = malloc(sizeof(struct syscall_tp)); | |
235 | if (evsel->priv != NULL) { | |
236 | if (perf_evsel__init_sc_tp_uint_field(evsel, id)) | |
237 | goto out_delete; | |
238 | ||
239 | evsel->handler = handler; | |
240 | return 0; | |
241 | } | |
242 | ||
243 | return -ENOMEM; | |
244 | ||
245 | out_delete: | |
04662523 | 246 | zfree(&evsel->priv); |
96695d44 NK |
247 | return -ENOENT; |
248 | } | |
249 | ||
ef503831 | 250 | static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler) |
77170988 | 251 | { |
ef503831 | 252 | struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); |
77170988 | 253 | |
9aca7f17 | 254 | /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ |
8dd2a131 | 255 | if (IS_ERR(evsel)) |
9aca7f17 DA |
256 | evsel = perf_evsel__newtp("syscalls", direction); |
257 | ||
8dd2a131 JO |
258 | if (IS_ERR(evsel)) |
259 | return NULL; | |
260 | ||
261 | if (perf_evsel__init_syscall_tp(evsel, handler)) | |
262 | goto out_delete; | |
77170988 ACM |
263 | |
264 | return evsel; | |
265 | ||
266 | out_delete: | |
267 | perf_evsel__delete_priv(evsel); | |
268 | return NULL; | |
269 | } | |
270 | ||
271 | #define perf_evsel__sc_tp_uint(evsel, name, sample) \ | |
272 | ({ struct syscall_tp *fields = evsel->priv; \ | |
273 | fields->name.integer(&fields->name, sample); }) | |
274 | ||
275 | #define perf_evsel__sc_tp_ptr(evsel, name, sample) \ | |
276 | ({ struct syscall_tp *fields = evsel->priv; \ | |
277 | fields->name.pointer(&fields->name, sample); }) | |
278 | ||
1f115cb7 | 279 | struct strarray { |
03e3adc9 | 280 | int offset; |
1f115cb7 ACM |
281 | int nr_entries; |
282 | const char **entries; | |
283 | }; | |
284 | ||
285 | #define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \ | |
286 | .nr_entries = ARRAY_SIZE(array), \ | |
287 | .entries = array, \ | |
288 | } | |
289 | ||
03e3adc9 ACM |
290 | #define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \ |
291 | .offset = off, \ | |
292 | .nr_entries = ARRAY_SIZE(array), \ | |
293 | .entries = array, \ | |
294 | } | |
295 | ||
975b7c2f ACM |
296 | static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size, |
297 | const char *intfmt, | |
298 | struct syscall_arg *arg) | |
1f115cb7 | 299 | { |
1f115cb7 | 300 | struct strarray *sa = arg->parm; |
03e3adc9 | 301 | int idx = arg->val - sa->offset; |
1f115cb7 ACM |
302 | |
303 | if (idx < 0 || idx >= sa->nr_entries) | |
975b7c2f | 304 | return scnprintf(bf, size, intfmt, arg->val); |
1f115cb7 ACM |
305 | |
306 | return scnprintf(bf, size, "%s", sa->entries[idx]); | |
307 | } | |
308 | ||
975b7c2f ACM |
309 | static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, |
310 | struct syscall_arg *arg) | |
311 | { | |
312 | return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg); | |
313 | } | |
314 | ||
1f115cb7 ACM |
315 | #define SCA_STRARRAY syscall_arg__scnprintf_strarray |
316 | ||
844ae5b4 ACM |
317 | #if defined(__i386__) || defined(__x86_64__) |
318 | /* | |
319 | * FIXME: Make this available to all arches as soon as the ioctl beautifier | |
320 | * gets rewritten to support all arches. | |
321 | */ | |
78645cf3 ACM |
322 | static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size, |
323 | struct syscall_arg *arg) | |
324 | { | |
325 | return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg); | |
326 | } | |
327 | ||
328 | #define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray | |
844ae5b4 | 329 | #endif /* defined(__i386__) || defined(__x86_64__) */ |
78645cf3 | 330 | |
75b757ca ACM |
331 | static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, |
332 | struct syscall_arg *arg); | |
333 | ||
334 | #define SCA_FD syscall_arg__scnprintf_fd | |
335 | ||
48e1f91a ACM |
336 | #ifndef AT_FDCWD |
337 | #define AT_FDCWD -100 | |
338 | #endif | |
339 | ||
75b757ca ACM |
340 | static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size, |
341 | struct syscall_arg *arg) | |
342 | { | |
343 | int fd = arg->val; | |
344 | ||
345 | if (fd == AT_FDCWD) | |
346 | return scnprintf(bf, size, "CWD"); | |
347 | ||
348 | return syscall_arg__scnprintf_fd(bf, size, arg); | |
349 | } | |
350 | ||
351 | #define SCA_FDAT syscall_arg__scnprintf_fd_at | |
352 | ||
353 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
354 | struct syscall_arg *arg); | |
355 | ||
356 | #define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd | |
357 | ||
6e7eeb51 | 358 | static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, |
01533e97 | 359 | struct syscall_arg *arg) |
13d4ff3e | 360 | { |
01533e97 | 361 | return scnprintf(bf, size, "%#lx", arg->val); |
13d4ff3e ACM |
362 | } |
363 | ||
beccb2b5 ACM |
364 | #define SCA_HEX syscall_arg__scnprintf_hex |
365 | ||
a1c2552d ACM |
366 | static size_t syscall_arg__scnprintf_int(char *bf, size_t size, |
367 | struct syscall_arg *arg) | |
368 | { | |
369 | return scnprintf(bf, size, "%d", arg->val); | |
370 | } | |
371 | ||
372 | #define SCA_INT syscall_arg__scnprintf_int | |
373 | ||
729a7841 ACM |
374 | static const char *bpf_cmd[] = { |
375 | "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", | |
376 | "MAP_GET_NEXT_KEY", "PROG_LOAD", | |
377 | }; | |
378 | static DEFINE_STRARRAY(bpf_cmd); | |
379 | ||
03e3adc9 ACM |
380 | static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; |
381 | static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); | |
eac032c5 | 382 | |
1f115cb7 ACM |
383 | static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", }; |
384 | static DEFINE_STRARRAY(itimers); | |
385 | ||
b62bee1b ACM |
386 | static const char *keyctl_options[] = { |
387 | "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN", | |
388 | "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ", | |
389 | "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT", | |
390 | "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT", | |
391 | "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT", | |
392 | }; | |
393 | static DEFINE_STRARRAY(keyctl_options); | |
394 | ||
efe6b882 ACM |
395 | static const char *whences[] = { "SET", "CUR", "END", |
396 | #ifdef SEEK_DATA | |
397 | "DATA", | |
398 | #endif | |
399 | #ifdef SEEK_HOLE | |
400 | "HOLE", | |
401 | #endif | |
402 | }; | |
403 | static DEFINE_STRARRAY(whences); | |
f9da0b0c | 404 | |
80f587d5 ACM |
405 | static const char *fcntl_cmds[] = { |
406 | "DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK", | |
407 | "SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64", | |
408 | "F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX", | |
409 | "F_GETOWNER_UIDS", | |
410 | }; | |
411 | static DEFINE_STRARRAY(fcntl_cmds); | |
412 | ||
c045bf02 ACM |
413 | static const char *rlimit_resources[] = { |
414 | "CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE", | |
415 | "MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO", | |
416 | "RTTIME", | |
417 | }; | |
418 | static DEFINE_STRARRAY(rlimit_resources); | |
419 | ||
eb5b1b14 ACM |
420 | static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", }; |
421 | static DEFINE_STRARRAY(sighow); | |
422 | ||
4f8c1b74 DA |
423 | static const char *clockid[] = { |
424 | "REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID", | |
28ebb87c ACM |
425 | "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME", |
426 | "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI" | |
4f8c1b74 DA |
427 | }; |
428 | static DEFINE_STRARRAY(clockid); | |
429 | ||
e10bce81 ACM |
430 | static const char *socket_families[] = { |
431 | "UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM", | |
432 | "BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI", | |
433 | "SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC", | |
434 | "RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC", | |
435 | "BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF", | |
436 | "ALG", "NFC", "VSOCK", | |
437 | }; | |
438 | static DEFINE_STRARRAY(socket_families); | |
439 | ||
51108999 ACM |
440 | static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size, |
441 | struct syscall_arg *arg) | |
442 | { | |
443 | size_t printed = 0; | |
444 | int mode = arg->val; | |
445 | ||
446 | if (mode == F_OK) /* 0 */ | |
447 | return scnprintf(bf, size, "F"); | |
448 | #define P_MODE(n) \ | |
449 | if (mode & n##_OK) { \ | |
450 | printed += scnprintf(bf + printed, size - printed, "%s", #n); \ | |
451 | mode &= ~n##_OK; \ | |
452 | } | |
453 | ||
454 | P_MODE(R); | |
455 | P_MODE(W); | |
456 | P_MODE(X); | |
457 | #undef P_MODE | |
458 | ||
459 | if (mode) | |
460 | printed += scnprintf(bf + printed, size - printed, "|%#x", mode); | |
461 | ||
462 | return printed; | |
463 | } | |
464 | ||
465 | #define SCA_ACCMODE syscall_arg__scnprintf_access_mode | |
466 | ||
f994592d ACM |
467 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, |
468 | struct syscall_arg *arg); | |
469 | ||
470 | #define SCA_FILENAME syscall_arg__scnprintf_filename | |
471 | ||
46cce19b ACM |
472 | static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size, |
473 | struct syscall_arg *arg) | |
474 | { | |
475 | int printed = 0, flags = arg->val; | |
476 | ||
477 | #define P_FLAG(n) \ | |
478 | if (flags & O_##n) { \ | |
479 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
480 | flags &= ~O_##n; \ | |
481 | } | |
482 | ||
483 | P_FLAG(CLOEXEC); | |
484 | P_FLAG(NONBLOCK); | |
485 | #undef P_FLAG | |
486 | ||
487 | if (flags) | |
488 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
489 | ||
490 | return printed; | |
491 | } | |
492 | ||
493 | #define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags | |
494 | ||
844ae5b4 ACM |
495 | #if defined(__i386__) || defined(__x86_64__) |
496 | /* | |
497 | * FIXME: Make this available to all arches. | |
498 | */ | |
78645cf3 ACM |
499 | #define TCGETS 0x5401 |
500 | ||
501 | static const char *tioctls[] = { | |
502 | "TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW", | |
503 | "TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL", | |
504 | "TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI", | |
505 | "TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC", | |
506 | "TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX", | |
507 | "TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO", | |
508 | "TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK", | |
509 | "TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2", | |
510 | "TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK", | |
511 | "TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG", | |
512 | "TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL", | |
513 | [0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG", | |
514 | "TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS", | |
515 | "TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI", | |
516 | "TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE", | |
517 | }; | |
518 | ||
519 | static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401); | |
844ae5b4 | 520 | #endif /* defined(__i386__) || defined(__x86_64__) */ |
78645cf3 | 521 | |
a355a61e ACM |
522 | #ifndef GRND_NONBLOCK |
523 | #define GRND_NONBLOCK 0x0001 | |
524 | #endif | |
525 | #ifndef GRND_RANDOM | |
526 | #define GRND_RANDOM 0x0002 | |
527 | #endif | |
528 | ||
39878d49 ACM |
529 | static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size, |
530 | struct syscall_arg *arg) | |
531 | { | |
532 | int printed = 0, flags = arg->val; | |
533 | ||
534 | #define P_FLAG(n) \ | |
535 | if (flags & GRND_##n) { \ | |
536 | printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ | |
537 | flags &= ~GRND_##n; \ | |
538 | } | |
539 | ||
540 | P_FLAG(RANDOM); | |
541 | P_FLAG(NONBLOCK); | |
542 | #undef P_FLAG | |
543 | ||
544 | if (flags) | |
545 | printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); | |
546 | ||
547 | return printed; | |
548 | } | |
549 | ||
550 | #define SCA_GETRANDOM_FLAGS syscall_arg__scnprintf_getrandom_flags | |
551 | ||
453350dd ACM |
552 | #define STRARRAY(arg, name, array) \ |
553 | .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \ | |
554 | .arg_parm = { [arg] = &strarray__##array, } | |
555 | ||
ea8dc3ce | 556 | #include "trace/beauty/eventfd.c" |
8bf382ce | 557 | #include "trace/beauty/flock.c" |
d5d71e86 | 558 | #include "trace/beauty/futex_op.c" |
df4cb167 | 559 | #include "trace/beauty/mmap.c" |
ba2f22cf | 560 | #include "trace/beauty/mode_t.c" |
a30e6259 | 561 | #include "trace/beauty/msg_flags.c" |
8f48df69 | 562 | #include "trace/beauty/open_flags.c" |
62de344e | 563 | #include "trace/beauty/perf_event_open.c" |
d5d71e86 | 564 | #include "trace/beauty/pid.c" |
a3bca91f | 565 | #include "trace/beauty/sched_policy.c" |
f5cd95ea | 566 | #include "trace/beauty/seccomp.c" |
12199d8e | 567 | #include "trace/beauty/signum.c" |
bbf86c43 | 568 | #include "trace/beauty/socket_type.c" |
7206b900 | 569 | #include "trace/beauty/waitid_options.c" |
a3bca91f | 570 | |
514f1c67 ACM |
571 | static struct syscall_fmt { |
572 | const char *name; | |
aec1930b | 573 | const char *alias; |
01533e97 | 574 | size_t (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg); |
1f115cb7 | 575 | void *arg_parm[6]; |
514f1c67 | 576 | bool errmsg; |
11c8e39f | 577 | bool errpid; |
514f1c67 | 578 | bool timeout; |
04b34729 | 579 | bool hexret; |
514f1c67 | 580 | } syscall_fmts[] = { |
51108999 | 581 | { .name = "access", .errmsg = true, |
12f3ca4f | 582 | .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, }, |
aec1930b | 583 | { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, |
729a7841 | 584 | { .name = "bpf", .errmsg = true, STRARRAY(0, cmd, bpf_cmd), }, |
beccb2b5 ACM |
585 | { .name = "brk", .hexret = true, |
586 | .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, }, | |
12f3ca4f ACM |
587 | { .name = "chdir", .errmsg = true, }, |
588 | { .name = "chmod", .errmsg = true, }, | |
589 | { .name = "chroot", .errmsg = true, }, | |
4f8c1b74 | 590 | { .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), }, |
11c8e39f | 591 | { .name = "clone", .errpid = true, }, |
75b757ca | 592 | { .name = "close", .errmsg = true, |
48000a1a | 593 | .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, }, |
a14bb860 | 594 | { .name = "connect", .errmsg = true, }, |
12f3ca4f | 595 | { .name = "creat", .errmsg = true, }, |
b6565c90 ACM |
596 | { .name = "dup", .errmsg = true, }, |
597 | { .name = "dup2", .errmsg = true, }, | |
598 | { .name = "dup3", .errmsg = true, }, | |
453350dd | 599 | { .name = "epoll_ctl", .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), }, |
49af9e93 ACM |
600 | { .name = "eventfd2", .errmsg = true, |
601 | .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, }, | |
12f3ca4f | 602 | { .name = "faccessat", .errmsg = true, }, |
b6565c90 ACM |
603 | { .name = "fadvise64", .errmsg = true, }, |
604 | { .name = "fallocate", .errmsg = true, }, | |
605 | { .name = "fchdir", .errmsg = true, }, | |
606 | { .name = "fchmod", .errmsg = true, }, | |
75b757ca | 607 | { .name = "fchmodat", .errmsg = true, |
12f3ca4f | 608 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
b6565c90 | 609 | { .name = "fchown", .errmsg = true, }, |
75b757ca | 610 | { .name = "fchownat", .errmsg = true, |
12f3ca4f | 611 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
75b757ca | 612 | { .name = "fcntl", .errmsg = true, |
b6565c90 | 613 | .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ }, |
75b757ca | 614 | .arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, }, |
b6565c90 | 615 | { .name = "fdatasync", .errmsg = true, }, |
5cea6ff2 | 616 | { .name = "flock", .errmsg = true, |
b6565c90 ACM |
617 | .arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, }, |
618 | { .name = "fsetxattr", .errmsg = true, }, | |
619 | { .name = "fstat", .errmsg = true, .alias = "newfstat", }, | |
12f3ca4f | 620 | { .name = "fstatat", .errmsg = true, .alias = "newfstatat", }, |
b6565c90 ACM |
621 | { .name = "fstatfs", .errmsg = true, }, |
622 | { .name = "fsync", .errmsg = true, }, | |
623 | { .name = "ftruncate", .errmsg = true, }, | |
f9da0b0c ACM |
624 | { .name = "futex", .errmsg = true, |
625 | .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, }, | |
75b757ca | 626 | { .name = "futimesat", .errmsg = true, |
12f3ca4f | 627 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
b6565c90 ACM |
628 | { .name = "getdents", .errmsg = true, }, |
629 | { .name = "getdents64", .errmsg = true, }, | |
453350dd | 630 | { .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), }, |
c65f1070 | 631 | { .name = "getpid", .errpid = true, }, |
d1d438a3 | 632 | { .name = "getpgid", .errpid = true, }, |
c65f1070 | 633 | { .name = "getppid", .errpid = true, }, |
39878d49 ACM |
634 | { .name = "getrandom", .errmsg = true, |
635 | .arg_scnprintf = { [2] = SCA_GETRANDOM_FLAGS, /* flags */ }, }, | |
453350dd | 636 | { .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, |
12f3ca4f ACM |
637 | { .name = "getxattr", .errmsg = true, }, |
638 | { .name = "inotify_add_watch", .errmsg = true, }, | |
beccb2b5 | 639 | { .name = "ioctl", .errmsg = true, |
b6565c90 | 640 | .arg_scnprintf = { |
844ae5b4 ACM |
641 | #if defined(__i386__) || defined(__x86_64__) |
642 | /* | |
643 | * FIXME: Make this available to all arches. | |
644 | */ | |
78645cf3 ACM |
645 | [1] = SCA_STRHEXARRAY, /* cmd */ |
646 | [2] = SCA_HEX, /* arg */ }, | |
647 | .arg_parm = { [1] = &strarray__tioctls, /* cmd */ }, }, | |
844ae5b4 ACM |
648 | #else |
649 | [2] = SCA_HEX, /* arg */ }, }, | |
650 | #endif | |
b62bee1b | 651 | { .name = "keyctl", .errmsg = true, STRARRAY(0, option, keyctl_options), }, |
8bad5b0a ACM |
652 | { .name = "kill", .errmsg = true, |
653 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
12f3ca4f ACM |
654 | { .name = "lchown", .errmsg = true, }, |
655 | { .name = "lgetxattr", .errmsg = true, }, | |
75b757ca | 656 | { .name = "linkat", .errmsg = true, |
48000a1a | 657 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
12f3ca4f ACM |
658 | { .name = "listxattr", .errmsg = true, }, |
659 | { .name = "llistxattr", .errmsg = true, }, | |
660 | { .name = "lremovexattr", .errmsg = true, }, | |
75b757ca | 661 | { .name = "lseek", .errmsg = true, |
b6565c90 | 662 | .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ }, |
75b757ca | 663 | .arg_parm = { [2] = &strarray__whences, /* whence */ }, }, |
12f3ca4f ACM |
664 | { .name = "lsetxattr", .errmsg = true, }, |
665 | { .name = "lstat", .errmsg = true, .alias = "newlstat", }, | |
666 | { .name = "lsxattr", .errmsg = true, }, | |
9e9716d1 ACM |
667 | { .name = "madvise", .errmsg = true, |
668 | .arg_scnprintf = { [0] = SCA_HEX, /* start */ | |
669 | [2] = SCA_MADV_BHV, /* behavior */ }, }, | |
12f3ca4f | 670 | { .name = "mkdir", .errmsg = true, }, |
75b757ca | 671 | { .name = "mkdirat", .errmsg = true, |
12f3ca4f ACM |
672 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
673 | { .name = "mknod", .errmsg = true, }, | |
75b757ca | 674 | { .name = "mknodat", .errmsg = true, |
12f3ca4f | 675 | .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, |
3d903aa7 ACM |
676 | { .name = "mlock", .errmsg = true, |
677 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
678 | { .name = "mlockall", .errmsg = true, | |
679 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
beccb2b5 | 680 | { .name = "mmap", .hexret = true, |
ae685380 | 681 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ |
941557e0 | 682 | [2] = SCA_MMAP_PROT, /* prot */ |
b6565c90 | 683 | [3] = SCA_MMAP_FLAGS, /* flags */ }, }, |
beccb2b5 | 684 | { .name = "mprotect", .errmsg = true, |
ae685380 ACM |
685 | .arg_scnprintf = { [0] = SCA_HEX, /* start */ |
686 | [2] = SCA_MMAP_PROT, /* prot */ }, }, | |
090389b6 ACM |
687 | { .name = "mq_unlink", .errmsg = true, |
688 | .arg_scnprintf = { [0] = SCA_FILENAME, /* u_name */ }, }, | |
ae685380 ACM |
689 | { .name = "mremap", .hexret = true, |
690 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ | |
86998dda | 691 | [3] = SCA_MREMAP_FLAGS, /* flags */ |
ae685380 | 692 | [4] = SCA_HEX, /* new_addr */ }, }, |
3d903aa7 ACM |
693 | { .name = "munlock", .errmsg = true, |
694 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
beccb2b5 ACM |
695 | { .name = "munmap", .errmsg = true, |
696 | .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, | |
75b757ca | 697 | { .name = "name_to_handle_at", .errmsg = true, |
48000a1a | 698 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
75b757ca | 699 | { .name = "newfstatat", .errmsg = true, |
12f3ca4f | 700 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
be65a89a | 701 | { .name = "open", .errmsg = true, |
12f3ca4f | 702 | .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, }, |
31cd3855 | 703 | { .name = "open_by_handle_at", .errmsg = true, |
75b757ca ACM |
704 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ |
705 | [2] = SCA_OPEN_FLAGS, /* flags */ }, }, | |
31cd3855 | 706 | { .name = "openat", .errmsg = true, |
75b757ca ACM |
707 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ |
708 | [2] = SCA_OPEN_FLAGS, /* flags */ }, }, | |
a1c2552d | 709 | { .name = "perf_event_open", .errmsg = true, |
ccd9b2a7 | 710 | .arg_scnprintf = { [2] = SCA_INT, /* cpu */ |
a1c2552d ACM |
711 | [3] = SCA_FD, /* group_fd */ |
712 | [4] = SCA_PERF_FLAGS, /* flags */ }, }, | |
46cce19b ACM |
713 | { .name = "pipe2", .errmsg = true, |
714 | .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, }, | |
aec1930b ACM |
715 | { .name = "poll", .errmsg = true, .timeout = true, }, |
716 | { .name = "ppoll", .errmsg = true, .timeout = true, }, | |
b6565c90 ACM |
717 | { .name = "pread", .errmsg = true, .alias = "pread64", }, |
718 | { .name = "preadv", .errmsg = true, .alias = "pread", }, | |
453350dd | 719 | { .name = "prlimit64", .errmsg = true, STRARRAY(1, resource, rlimit_resources), }, |
b6565c90 ACM |
720 | { .name = "pwrite", .errmsg = true, .alias = "pwrite64", }, |
721 | { .name = "pwritev", .errmsg = true, }, | |
722 | { .name = "read", .errmsg = true, }, | |
12f3ca4f | 723 | { .name = "readlink", .errmsg = true, }, |
75b757ca | 724 | { .name = "readlinkat", .errmsg = true, |
12f3ca4f | 725 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
b6565c90 | 726 | { .name = "readv", .errmsg = true, }, |
b2cc99fd | 727 | { .name = "recvfrom", .errmsg = true, |
b6565c90 | 728 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 729 | { .name = "recvmmsg", .errmsg = true, |
b6565c90 | 730 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 731 | { .name = "recvmsg", .errmsg = true, |
b6565c90 | 732 | .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, |
12f3ca4f | 733 | { .name = "removexattr", .errmsg = true, }, |
75b757ca | 734 | { .name = "renameat", .errmsg = true, |
48000a1a | 735 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
12f3ca4f | 736 | { .name = "rmdir", .errmsg = true, }, |
8bad5b0a ACM |
737 | { .name = "rt_sigaction", .errmsg = true, |
738 | .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, }, | |
453350dd | 739 | { .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), }, |
8bad5b0a ACM |
740 | { .name = "rt_sigqueueinfo", .errmsg = true, |
741 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
742 | { .name = "rt_tgsigqueueinfo", .errmsg = true, | |
743 | .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, | |
f0bbd602 ACM |
744 | { .name = "sched_getattr", .errmsg = true, }, |
745 | { .name = "sched_setattr", .errmsg = true, }, | |
a3bca91f ACM |
746 | { .name = "sched_setscheduler", .errmsg = true, |
747 | .arg_scnprintf = { [1] = SCA_SCHED_POLICY, /* policy */ }, }, | |
997bba8c ACM |
748 | { .name = "seccomp", .errmsg = true, |
749 | .arg_scnprintf = { [0] = SCA_SECCOMP_OP, /* op */ | |
750 | [1] = SCA_SECCOMP_FLAGS, /* flags */ }, }, | |
aec1930b | 751 | { .name = "select", .errmsg = true, .timeout = true, }, |
b2cc99fd | 752 | { .name = "sendmmsg", .errmsg = true, |
b6565c90 | 753 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 754 | { .name = "sendmsg", .errmsg = true, |
b6565c90 | 755 | .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, }, |
b2cc99fd | 756 | { .name = "sendto", .errmsg = true, |
b6565c90 | 757 | .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, }, |
c65f1070 | 758 | { .name = "set_tid_address", .errpid = true, }, |
453350dd | 759 | { .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), }, |
d1d438a3 | 760 | { .name = "setpgid", .errmsg = true, }, |
453350dd | 761 | { .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), }, |
12f3ca4f | 762 | { .name = "setxattr", .errmsg = true, }, |
b6565c90 | 763 | { .name = "shutdown", .errmsg = true, }, |
e10bce81 | 764 | { .name = "socket", .errmsg = true, |
a28b24b2 ACM |
765 | .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ |
766 | [1] = SCA_SK_TYPE, /* type */ }, | |
07120aa5 ACM |
767 | .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, |
768 | { .name = "socketpair", .errmsg = true, | |
769 | .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ | |
770 | [1] = SCA_SK_TYPE, /* type */ }, | |
e10bce81 | 771 | .arg_parm = { [0] = &strarray__socket_families, /* family */ }, }, |
12f3ca4f ACM |
772 | { .name = "stat", .errmsg = true, .alias = "newstat", }, |
773 | { .name = "statfs", .errmsg = true, }, | |
fd5cead2 ACM |
774 | { .name = "statx", .errmsg = true, |
775 | .arg_scnprintf = { [0] = SCA_FDAT, /* flags */ | |
776 | [2] = SCA_STATX_FLAGS, /* flags */ | |
777 | [3] = SCA_STATX_MASK, /* mask */ }, }, | |
34221118 ACM |
778 | { .name = "swapoff", .errmsg = true, |
779 | .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, }, | |
780 | { .name = "swapon", .errmsg = true, | |
781 | .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, }, | |
75b757ca | 782 | { .name = "symlinkat", .errmsg = true, |
48000a1a | 783 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
8bad5b0a ACM |
784 | { .name = "tgkill", .errmsg = true, |
785 | .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, | |
786 | { .name = "tkill", .errmsg = true, | |
787 | .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, | |
12f3ca4f | 788 | { .name = "truncate", .errmsg = true, }, |
e5959683 | 789 | { .name = "uname", .errmsg = true, .alias = "newuname", }, |
75b757ca | 790 | { .name = "unlinkat", .errmsg = true, |
12f3ca4f ACM |
791 | .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, |
792 | { .name = "utime", .errmsg = true, }, | |
75b757ca | 793 | { .name = "utimensat", .errmsg = true, |
12f3ca4f ACM |
794 | .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, }, |
795 | { .name = "utimes", .errmsg = true, }, | |
b6565c90 | 796 | { .name = "vmsplice", .errmsg = true, }, |
11c8e39f | 797 | { .name = "wait4", .errpid = true, |
7206b900 | 798 | .arg_scnprintf = { [2] = SCA_WAITID_OPTIONS, /* options */ }, }, |
11c8e39f | 799 | { .name = "waitid", .errpid = true, |
7206b900 | 800 | .arg_scnprintf = { [3] = SCA_WAITID_OPTIONS, /* options */ }, }, |
b6565c90 ACM |
801 | { .name = "write", .errmsg = true, }, |
802 | { .name = "writev", .errmsg = true, }, | |
514f1c67 ACM |
803 | }; |
804 | ||
805 | static int syscall_fmt__cmp(const void *name, const void *fmtp) | |
806 | { | |
807 | const struct syscall_fmt *fmt = fmtp; | |
808 | return strcmp(name, fmt->name); | |
809 | } | |
810 | ||
811 | static struct syscall_fmt *syscall_fmt__find(const char *name) | |
812 | { | |
813 | const int nmemb = ARRAY_SIZE(syscall_fmts); | |
814 | return bsearch(name, syscall_fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp); | |
815 | } | |
816 | ||
817 | struct syscall { | |
818 | struct event_format *tp_format; | |
f208bd8d ACM |
819 | int nr_args; |
820 | struct format_field *args; | |
514f1c67 | 821 | const char *name; |
5089f20e | 822 | bool is_exit; |
514f1c67 | 823 | struct syscall_fmt *fmt; |
01533e97 | 824 | size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); |
1f115cb7 | 825 | void **arg_parm; |
514f1c67 ACM |
826 | }; |
827 | ||
fd2b2975 ACM |
828 | /* |
829 | * We need to have this 'calculated' boolean because in some cases we really | |
830 | * don't know what is the duration of a syscall, for instance, when we start | |
831 | * a session and some threads are waiting for a syscall to finish, say 'poll', | |
832 | * in which case all we can do is to print "( ? ) for duration and for the | |
833 | * start timestamp. | |
834 | */ | |
835 | static size_t fprintf_duration(unsigned long t, bool calculated, FILE *fp) | |
60c907ab ACM |
836 | { |
837 | double duration = (double)t / NSEC_PER_MSEC; | |
838 | size_t printed = fprintf(fp, "("); | |
839 | ||
fd2b2975 ACM |
840 | if (!calculated) |
841 | printed += fprintf(fp, " ? "); | |
842 | else if (duration >= 1.0) | |
60c907ab ACM |
843 | printed += color_fprintf(fp, PERF_COLOR_RED, "%6.3f ms", duration); |
844 | else if (duration >= 0.01) | |
845 | printed += color_fprintf(fp, PERF_COLOR_YELLOW, "%6.3f ms", duration); | |
846 | else | |
847 | printed += color_fprintf(fp, PERF_COLOR_NORMAL, "%6.3f ms", duration); | |
c24ff998 | 848 | return printed + fprintf(fp, "): "); |
60c907ab ACM |
849 | } |
850 | ||
f994592d ACM |
851 | /** |
852 | * filename.ptr: The filename char pointer that will be vfs_getname'd | |
853 | * filename.entry_str_pos: Where to insert the string translated from | |
854 | * filename.ptr by the vfs_getname tracepoint/kprobe. | |
855 | */ | |
752fde44 ACM |
856 | struct thread_trace { |
857 | u64 entry_time; | |
752fde44 | 858 | bool entry_pending; |
efd5745e | 859 | unsigned long nr_events; |
a2ea67d7 | 860 | unsigned long pfmaj, pfmin; |
752fde44 | 861 | char *entry_str; |
1302d88e | 862 | double runtime_ms; |
f994592d ACM |
863 | struct { |
864 | unsigned long ptr; | |
7f4f8001 ACM |
865 | short int entry_str_pos; |
866 | bool pending_open; | |
867 | unsigned int namelen; | |
868 | char *name; | |
f994592d | 869 | } filename; |
75b757ca ACM |
870 | struct { |
871 | int max; | |
872 | char **table; | |
873 | } paths; | |
bf2575c1 DA |
874 | |
875 | struct intlist *syscall_stats; | |
752fde44 ACM |
876 | }; |
877 | ||
878 | static struct thread_trace *thread_trace__new(void) | |
879 | { | |
75b757ca ACM |
880 | struct thread_trace *ttrace = zalloc(sizeof(struct thread_trace)); |
881 | ||
882 | if (ttrace) | |
883 | ttrace->paths.max = -1; | |
884 | ||
bf2575c1 DA |
885 | ttrace->syscall_stats = intlist__new(NULL); |
886 | ||
75b757ca | 887 | return ttrace; |
752fde44 ACM |
888 | } |
889 | ||
c24ff998 | 890 | static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) |
752fde44 | 891 | { |
efd5745e ACM |
892 | struct thread_trace *ttrace; |
893 | ||
752fde44 ACM |
894 | if (thread == NULL) |
895 | goto fail; | |
896 | ||
89dceb22 NK |
897 | if (thread__priv(thread) == NULL) |
898 | thread__set_priv(thread, thread_trace__new()); | |
48000a1a | 899 | |
89dceb22 | 900 | if (thread__priv(thread) == NULL) |
752fde44 ACM |
901 | goto fail; |
902 | ||
89dceb22 | 903 | ttrace = thread__priv(thread); |
efd5745e ACM |
904 | ++ttrace->nr_events; |
905 | ||
906 | return ttrace; | |
752fde44 | 907 | fail: |
c24ff998 | 908 | color_fprintf(fp, PERF_COLOR_RED, |
752fde44 ACM |
909 | "WARNING: not enough memory, dropping samples!\n"); |
910 | return NULL; | |
911 | } | |
912 | ||
598d02c5 SF |
913 | #define TRACE_PFMAJ (1 << 0) |
914 | #define TRACE_PFMIN (1 << 1) | |
915 | ||
e4d44e83 ACM |
916 | static const size_t trace__entry_str_size = 2048; |
917 | ||
97119f37 | 918 | static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) |
75b757ca | 919 | { |
89dceb22 | 920 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
921 | |
922 | if (fd > ttrace->paths.max) { | |
923 | char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *)); | |
924 | ||
925 | if (npath == NULL) | |
926 | return -1; | |
927 | ||
928 | if (ttrace->paths.max != -1) { | |
929 | memset(npath + ttrace->paths.max + 1, 0, | |
930 | (fd - ttrace->paths.max) * sizeof(char *)); | |
931 | } else { | |
932 | memset(npath, 0, (fd + 1) * sizeof(char *)); | |
933 | } | |
934 | ||
935 | ttrace->paths.table = npath; | |
936 | ttrace->paths.max = fd; | |
937 | } | |
938 | ||
939 | ttrace->paths.table[fd] = strdup(pathname); | |
940 | ||
941 | return ttrace->paths.table[fd] != NULL ? 0 : -1; | |
942 | } | |
943 | ||
97119f37 ACM |
944 | static int thread__read_fd_path(struct thread *thread, int fd) |
945 | { | |
946 | char linkname[PATH_MAX], pathname[PATH_MAX]; | |
947 | struct stat st; | |
948 | int ret; | |
949 | ||
950 | if (thread->pid_ == thread->tid) { | |
951 | scnprintf(linkname, sizeof(linkname), | |
952 | "/proc/%d/fd/%d", thread->pid_, fd); | |
953 | } else { | |
954 | scnprintf(linkname, sizeof(linkname), | |
955 | "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd); | |
956 | } | |
957 | ||
958 | if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname)) | |
959 | return -1; | |
960 | ||
961 | ret = readlink(linkname, pathname, sizeof(pathname)); | |
962 | ||
963 | if (ret < 0 || ret > st.st_size) | |
964 | return -1; | |
965 | ||
966 | pathname[ret] = '\0'; | |
967 | return trace__set_fd_pathname(thread, fd, pathname); | |
968 | } | |
969 | ||
c522739d ACM |
970 | static const char *thread__fd_path(struct thread *thread, int fd, |
971 | struct trace *trace) | |
75b757ca | 972 | { |
89dceb22 | 973 | struct thread_trace *ttrace = thread__priv(thread); |
75b757ca ACM |
974 | |
975 | if (ttrace == NULL) | |
976 | return NULL; | |
977 | ||
978 | if (fd < 0) | |
979 | return NULL; | |
980 | ||
cdcd1e6b | 981 | if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) { |
c522739d ACM |
982 | if (!trace->live) |
983 | return NULL; | |
984 | ++trace->stats.proc_getname; | |
cdcd1e6b | 985 | if (thread__read_fd_path(thread, fd)) |
c522739d ACM |
986 | return NULL; |
987 | } | |
75b757ca ACM |
988 | |
989 | return ttrace->paths.table[fd]; | |
990 | } | |
991 | ||
992 | static size_t syscall_arg__scnprintf_fd(char *bf, size_t size, | |
993 | struct syscall_arg *arg) | |
994 | { | |
995 | int fd = arg->val; | |
996 | size_t printed = scnprintf(bf, size, "%d", fd); | |
c522739d | 997 | const char *path = thread__fd_path(arg->thread, fd, arg->trace); |
75b757ca ACM |
998 | |
999 | if (path) | |
1000 | printed += scnprintf(bf + printed, size - printed, "<%s>", path); | |
1001 | ||
1002 | return printed; | |
1003 | } | |
1004 | ||
1005 | static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, | |
1006 | struct syscall_arg *arg) | |
1007 | { | |
1008 | int fd = arg->val; | |
1009 | size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); | |
89dceb22 | 1010 | struct thread_trace *ttrace = thread__priv(arg->thread); |
75b757ca | 1011 | |
04662523 ACM |
1012 | if (ttrace && fd >= 0 && fd <= ttrace->paths.max) |
1013 | zfree(&ttrace->paths.table[fd]); | |
75b757ca ACM |
1014 | |
1015 | return printed; | |
1016 | } | |
1017 | ||
f994592d ACM |
1018 | static void thread__set_filename_pos(struct thread *thread, const char *bf, |
1019 | unsigned long ptr) | |
1020 | { | |
1021 | struct thread_trace *ttrace = thread__priv(thread); | |
1022 | ||
1023 | ttrace->filename.ptr = ptr; | |
1024 | ttrace->filename.entry_str_pos = bf - ttrace->entry_str; | |
1025 | } | |
1026 | ||
1027 | static size_t syscall_arg__scnprintf_filename(char *bf, size_t size, | |
1028 | struct syscall_arg *arg) | |
1029 | { | |
1030 | unsigned long ptr = arg->val; | |
1031 | ||
1032 | if (!arg->trace->vfs_getname) | |
1033 | return scnprintf(bf, size, "%#x", ptr); | |
1034 | ||
1035 | thread__set_filename_pos(arg->thread, bf, ptr); | |
1036 | return 0; | |
1037 | } | |
1038 | ||
ae9ed035 ACM |
1039 | static bool trace__filter_duration(struct trace *trace, double t) |
1040 | { | |
1041 | return t < (trace->duration_filter * NSEC_PER_MSEC); | |
1042 | } | |
1043 | ||
fd2b2975 | 1044 | static size_t __trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) |
752fde44 ACM |
1045 | { |
1046 | double ts = (double)(tstamp - trace->base_time) / NSEC_PER_MSEC; | |
1047 | ||
60c907ab | 1048 | return fprintf(fp, "%10.3f ", ts); |
752fde44 ACM |
1049 | } |
1050 | ||
fd2b2975 ACM |
1051 | /* |
1052 | * We're handling tstamp=0 as an undefined tstamp, i.e. like when we are | |
1053 | * using ttrace->entry_time for a thread that receives a sys_exit without | |
1054 | * first having received a sys_enter ("poll" issued before tracing session | |
1055 | * starts, lost sys_enter exit due to ring buffer overflow). | |
1056 | */ | |
1057 | static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) | |
1058 | { | |
1059 | if (tstamp > 0) | |
1060 | return __trace__fprintf_tstamp(trace, tstamp, fp); | |
1061 | ||
1062 | return fprintf(fp, " ? "); | |
1063 | } | |
1064 | ||
f15eb531 | 1065 | static bool done = false; |
ba209f85 | 1066 | static bool interrupted = false; |
f15eb531 | 1067 | |
ba209f85 | 1068 | static void sig_handler(int sig) |
f15eb531 NK |
1069 | { |
1070 | done = true; | |
ba209f85 | 1071 | interrupted = sig == SIGINT; |
f15eb531 NK |
1072 | } |
1073 | ||
752fde44 | 1074 | static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, |
fd2b2975 | 1075 | u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) |
752fde44 ACM |
1076 | { |
1077 | size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); | |
fd2b2975 | 1078 | printed += fprintf_duration(duration, duration_calculated, fp); |
752fde44 | 1079 | |
50c95cbd ACM |
1080 | if (trace->multiple_threads) { |
1081 | if (trace->show_comm) | |
1902efe7 | 1082 | printed += fprintf(fp, "%.14s/", thread__comm_str(thread)); |
38051234 | 1083 | printed += fprintf(fp, "%d ", thread->tid); |
50c95cbd | 1084 | } |
752fde44 ACM |
1085 | |
1086 | return printed; | |
1087 | } | |
1088 | ||
c24ff998 | 1089 | static int trace__process_event(struct trace *trace, struct machine *machine, |
162f0bef | 1090 | union perf_event *event, struct perf_sample *sample) |
752fde44 ACM |
1091 | { |
1092 | int ret = 0; | |
1093 | ||
1094 | switch (event->header.type) { | |
1095 | case PERF_RECORD_LOST: | |
c24ff998 | 1096 | color_fprintf(trace->output, PERF_COLOR_RED, |
752fde44 | 1097 | "LOST %" PRIu64 " events!\n", event->lost.lost); |
162f0bef | 1098 | ret = machine__process_lost_event(machine, event, sample); |
3ed5ca2e | 1099 | break; |
752fde44 | 1100 | default: |
162f0bef | 1101 | ret = machine__process_event(machine, event, sample); |
752fde44 ACM |
1102 | break; |
1103 | } | |
1104 | ||
1105 | return ret; | |
1106 | } | |
1107 | ||
c24ff998 | 1108 | static int trace__tool_process(struct perf_tool *tool, |
752fde44 | 1109 | union perf_event *event, |
162f0bef | 1110 | struct perf_sample *sample, |
752fde44 ACM |
1111 | struct machine *machine) |
1112 | { | |
c24ff998 | 1113 | struct trace *trace = container_of(tool, struct trace, tool); |
162f0bef | 1114 | return trace__process_event(trace, machine, event, sample); |
752fde44 ACM |
1115 | } |
1116 | ||
caf8a0d0 ACM |
1117 | static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp) |
1118 | { | |
1119 | struct machine *machine = vmachine; | |
1120 | ||
1121 | if (machine->kptr_restrict_warned) | |
1122 | return NULL; | |
1123 | ||
1124 | if (symbol_conf.kptr_restrict) { | |
1125 | pr_warning("Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
1126 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
1127 | "Kernel samples will not be resolved.\n"); | |
1128 | machine->kptr_restrict_warned = true; | |
1129 | return NULL; | |
1130 | } | |
1131 | ||
1132 | return machine__resolve_kernel_addr(vmachine, addrp, modp); | |
1133 | } | |
1134 | ||
752fde44 ACM |
1135 | static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) |
1136 | { | |
0a7e6d1b | 1137 | int err = symbol__init(NULL); |
752fde44 ACM |
1138 | |
1139 | if (err) | |
1140 | return err; | |
1141 | ||
8fb598e5 DA |
1142 | trace->host = machine__new_host(); |
1143 | if (trace->host == NULL) | |
1144 | return -ENOMEM; | |
752fde44 | 1145 | |
caf8a0d0 | 1146 | if (trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr) < 0) |
706c3da4 ACM |
1147 | return -errno; |
1148 | ||
a33fbd56 | 1149 | err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, |
9d9cad76 KL |
1150 | evlist->threads, trace__tool_process, false, |
1151 | trace->opts.proc_map_timeout); | |
752fde44 ACM |
1152 | if (err) |
1153 | symbol__exit(); | |
1154 | ||
1155 | return err; | |
1156 | } | |
1157 | ||
13d4ff3e ACM |
1158 | static int syscall__set_arg_fmts(struct syscall *sc) |
1159 | { | |
1160 | struct format_field *field; | |
b6565c90 | 1161 | int idx = 0, len; |
13d4ff3e | 1162 | |
f208bd8d | 1163 | sc->arg_scnprintf = calloc(sc->nr_args, sizeof(void *)); |
13d4ff3e ACM |
1164 | if (sc->arg_scnprintf == NULL) |
1165 | return -1; | |
1166 | ||
1f115cb7 ACM |
1167 | if (sc->fmt) |
1168 | sc->arg_parm = sc->fmt->arg_parm; | |
1169 | ||
f208bd8d | 1170 | for (field = sc->args; field; field = field->next) { |
beccb2b5 ACM |
1171 | if (sc->fmt && sc->fmt->arg_scnprintf[idx]) |
1172 | sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx]; | |
12f3ca4f ACM |
1173 | else if (strcmp(field->type, "const char *") == 0 && |
1174 | (strcmp(field->name, "filename") == 0 || | |
1175 | strcmp(field->name, "path") == 0 || | |
1176 | strcmp(field->name, "pathname") == 0)) | |
1177 | sc->arg_scnprintf[idx] = SCA_FILENAME; | |
beccb2b5 | 1178 | else if (field->flags & FIELD_IS_POINTER) |
13d4ff3e | 1179 | sc->arg_scnprintf[idx] = syscall_arg__scnprintf_hex; |
d1d438a3 ACM |
1180 | else if (strcmp(field->type, "pid_t") == 0) |
1181 | sc->arg_scnprintf[idx] = SCA_PID; | |
ba2f22cf ACM |
1182 | else if (strcmp(field->type, "umode_t") == 0) |
1183 | sc->arg_scnprintf[idx] = SCA_MODE_T; | |
b6565c90 ACM |
1184 | else if ((strcmp(field->type, "int") == 0 || |
1185 | strcmp(field->type, "unsigned int") == 0 || | |
1186 | strcmp(field->type, "long") == 0) && | |
1187 | (len = strlen(field->name)) >= 2 && | |
1188 | strcmp(field->name + len - 2, "fd") == 0) { | |
1189 | /* | |
1190 | * /sys/kernel/tracing/events/syscalls/sys_enter* | |
1191 | * egrep 'field:.*fd;' .../format|sed -r 's/.*field:([a-z ]+) [a-z_]*fd.+/\1/g'|sort|uniq -c | |
1192 | * 65 int | |
1193 | * 23 unsigned int | |
1194 | * 7 unsigned long | |
1195 | */ | |
1196 | sc->arg_scnprintf[idx] = SCA_FD; | |
1197 | } | |
13d4ff3e ACM |
1198 | ++idx; |
1199 | } | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
514f1c67 ACM |
1204 | static int trace__read_syscall_info(struct trace *trace, int id) |
1205 | { | |
1206 | char tp_name[128]; | |
1207 | struct syscall *sc; | |
fd0db102 | 1208 | const char *name = syscalltbl__name(trace->sctbl, id); |
3a531260 ACM |
1209 | |
1210 | if (name == NULL) | |
1211 | return -1; | |
514f1c67 ACM |
1212 | |
1213 | if (id > trace->syscalls.max) { | |
1214 | struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); | |
1215 | ||
1216 | if (nsyscalls == NULL) | |
1217 | return -1; | |
1218 | ||
1219 | if (trace->syscalls.max != -1) { | |
1220 | memset(nsyscalls + trace->syscalls.max + 1, 0, | |
1221 | (id - trace->syscalls.max) * sizeof(*sc)); | |
1222 | } else { | |
1223 | memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); | |
1224 | } | |
1225 | ||
1226 | trace->syscalls.table = nsyscalls; | |
1227 | trace->syscalls.max = id; | |
1228 | } | |
1229 | ||
1230 | sc = trace->syscalls.table + id; | |
3a531260 | 1231 | sc->name = name; |
2ae3a312 | 1232 | |
3a531260 | 1233 | sc->fmt = syscall_fmt__find(sc->name); |
514f1c67 | 1234 | |
aec1930b | 1235 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); |
97978b3e | 1236 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1237 | |
8dd2a131 | 1238 | if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { |
aec1930b | 1239 | snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); |
97978b3e | 1240 | sc->tp_format = trace_event__tp_format("syscalls", tp_name); |
aec1930b | 1241 | } |
514f1c67 | 1242 | |
8dd2a131 | 1243 | if (IS_ERR(sc->tp_format)) |
13d4ff3e ACM |
1244 | return -1; |
1245 | ||
f208bd8d ACM |
1246 | sc->args = sc->tp_format->format.fields; |
1247 | sc->nr_args = sc->tp_format->format.nr_fields; | |
c42de706 TS |
1248 | /* |
1249 | * We need to check and discard the first variable '__syscall_nr' | |
1250 | * or 'nr' that mean the syscall number. It is needless here. | |
1251 | * So drop '__syscall_nr' or 'nr' field but does not exist on older kernels. | |
1252 | */ | |
1253 | if (sc->args && (!strcmp(sc->args->name, "__syscall_nr") || !strcmp(sc->args->name, "nr"))) { | |
f208bd8d ACM |
1254 | sc->args = sc->args->next; |
1255 | --sc->nr_args; | |
1256 | } | |
1257 | ||
5089f20e ACM |
1258 | sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); |
1259 | ||
13d4ff3e | 1260 | return syscall__set_arg_fmts(sc); |
514f1c67 ACM |
1261 | } |
1262 | ||
d0cc439b ACM |
1263 | static int trace__validate_ev_qualifier(struct trace *trace) |
1264 | { | |
8b3ce757 | 1265 | int err = 0, i; |
d0cc439b ACM |
1266 | struct str_node *pos; |
1267 | ||
8b3ce757 ACM |
1268 | trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); |
1269 | trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr * | |
1270 | sizeof(trace->ev_qualifier_ids.entries[0])); | |
1271 | ||
1272 | if (trace->ev_qualifier_ids.entries == NULL) { | |
1273 | fputs("Error:\tNot enough memory for allocating events qualifier ids\n", | |
1274 | trace->output); | |
1275 | err = -EINVAL; | |
1276 | goto out; | |
1277 | } | |
1278 | ||
1279 | i = 0; | |
1280 | ||
602a1f4d | 1281 | strlist__for_each_entry(pos, trace->ev_qualifier) { |
d0cc439b | 1282 | const char *sc = pos->s; |
fd0db102 | 1283 | int id = syscalltbl__id(trace->sctbl, sc); |
d0cc439b | 1284 | |
8b3ce757 | 1285 | if (id < 0) { |
d0cc439b ACM |
1286 | if (err == 0) { |
1287 | fputs("Error:\tInvalid syscall ", trace->output); | |
1288 | err = -EINVAL; | |
1289 | } else { | |
1290 | fputs(", ", trace->output); | |
1291 | } | |
1292 | ||
1293 | fputs(sc, trace->output); | |
1294 | } | |
8b3ce757 ACM |
1295 | |
1296 | trace->ev_qualifier_ids.entries[i++] = id; | |
d0cc439b ACM |
1297 | } |
1298 | ||
1299 | if (err < 0) { | |
1300 | fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" | |
1301 | "\nHint:\tand: 'man syscalls'\n", trace->output); | |
8b3ce757 ACM |
1302 | zfree(&trace->ev_qualifier_ids.entries); |
1303 | trace->ev_qualifier_ids.nr = 0; | |
d0cc439b | 1304 | } |
8b3ce757 | 1305 | out: |
d0cc439b ACM |
1306 | return err; |
1307 | } | |
1308 | ||
55d43bca DA |
1309 | /* |
1310 | * args is to be interpreted as a series of longs but we need to handle | |
1311 | * 8-byte unaligned accesses. args points to raw_data within the event | |
1312 | * and raw_data is guaranteed to be 8-byte unaligned because it is | |
1313 | * preceded by raw_size which is a u32. So we need to copy args to a temp | |
1314 | * variable to read it. Most notably this avoids extended load instructions | |
1315 | * on unaligned addresses | |
1316 | */ | |
1317 | ||
752fde44 | 1318 | static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, |
55d43bca | 1319 | unsigned char *args, struct trace *trace, |
75b757ca | 1320 | struct thread *thread) |
514f1c67 | 1321 | { |
514f1c67 | 1322 | size_t printed = 0; |
55d43bca DA |
1323 | unsigned char *p; |
1324 | unsigned long val; | |
514f1c67 | 1325 | |
f208bd8d | 1326 | if (sc->args != NULL) { |
514f1c67 | 1327 | struct format_field *field; |
01533e97 ACM |
1328 | u8 bit = 1; |
1329 | struct syscall_arg arg = { | |
75b757ca ACM |
1330 | .idx = 0, |
1331 | .mask = 0, | |
1332 | .trace = trace, | |
1333 | .thread = thread, | |
01533e97 | 1334 | }; |
6e7eeb51 | 1335 | |
f208bd8d | 1336 | for (field = sc->args; field; |
01533e97 ACM |
1337 | field = field->next, ++arg.idx, bit <<= 1) { |
1338 | if (arg.mask & bit) | |
6e7eeb51 | 1339 | continue; |
55d43bca DA |
1340 | |
1341 | /* special care for unaligned accesses */ | |
1342 | p = args + sizeof(unsigned long) * arg.idx; | |
1343 | memcpy(&val, p, sizeof(val)); | |
1344 | ||
4aa58232 ACM |
1345 | /* |
1346 | * Suppress this argument if its value is zero and | |
1347 | * and we don't have a string associated in an | |
1348 | * strarray for it. | |
1349 | */ | |
55d43bca | 1350 | if (val == 0 && |
4aa58232 ACM |
1351 | !(sc->arg_scnprintf && |
1352 | sc->arg_scnprintf[arg.idx] == SCA_STRARRAY && | |
1353 | sc->arg_parm[arg.idx])) | |
22ae5cf1 ACM |
1354 | continue; |
1355 | ||
752fde44 | 1356 | printed += scnprintf(bf + printed, size - printed, |
13d4ff3e | 1357 | "%s%s: ", printed ? ", " : "", field->name); |
01533e97 | 1358 | if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) { |
55d43bca | 1359 | arg.val = val; |
1f115cb7 ACM |
1360 | if (sc->arg_parm) |
1361 | arg.parm = sc->arg_parm[arg.idx]; | |
01533e97 ACM |
1362 | printed += sc->arg_scnprintf[arg.idx](bf + printed, |
1363 | size - printed, &arg); | |
6e7eeb51 | 1364 | } else { |
13d4ff3e | 1365 | printed += scnprintf(bf + printed, size - printed, |
55d43bca | 1366 | "%ld", val); |
6e7eeb51 | 1367 | } |
514f1c67 | 1368 | } |
4c4d6e51 ACM |
1369 | } else if (IS_ERR(sc->tp_format)) { |
1370 | /* | |
1371 | * If we managed to read the tracepoint /format file, then we | |
1372 | * may end up not having any args, like with gettid(), so only | |
1373 | * print the raw args when we didn't manage to read it. | |
1374 | */ | |
01533e97 ACM |
1375 | int i = 0; |
1376 | ||
514f1c67 | 1377 | while (i < 6) { |
55d43bca DA |
1378 | /* special care for unaligned accesses */ |
1379 | p = args + sizeof(unsigned long) * i; | |
1380 | memcpy(&val, p, sizeof(val)); | |
752fde44 ACM |
1381 | printed += scnprintf(bf + printed, size - printed, |
1382 | "%sarg%d: %ld", | |
55d43bca | 1383 | printed ? ", " : "", i, val); |
514f1c67 ACM |
1384 | ++i; |
1385 | } | |
1386 | } | |
1387 | ||
1388 | return printed; | |
1389 | } | |
1390 | ||
ba3d7dee | 1391 | typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1392 | union perf_event *event, |
ba3d7dee ACM |
1393 | struct perf_sample *sample); |
1394 | ||
1395 | static struct syscall *trace__syscall_info(struct trace *trace, | |
bf2575c1 | 1396 | struct perf_evsel *evsel, int id) |
ba3d7dee | 1397 | { |
ba3d7dee ACM |
1398 | |
1399 | if (id < 0) { | |
adaa18bf ACM |
1400 | |
1401 | /* | |
1402 | * XXX: Noticed on x86_64, reproduced as far back as 3.0.36, haven't tried | |
1403 | * before that, leaving at a higher verbosity level till that is | |
1404 | * explained. Reproduced with plain ftrace with: | |
1405 | * | |
1406 | * echo 1 > /t/events/raw_syscalls/sys_exit/enable | |
1407 | * grep "NR -1 " /t/trace_pipe | |
1408 | * | |
1409 | * After generating some load on the machine. | |
1410 | */ | |
1411 | if (verbose > 1) { | |
1412 | static u64 n; | |
1413 | fprintf(trace->output, "Invalid syscall %d id, skipping (%s, %" PRIu64 ") ...\n", | |
1414 | id, perf_evsel__name(evsel), ++n); | |
1415 | } | |
ba3d7dee ACM |
1416 | return NULL; |
1417 | } | |
1418 | ||
1419 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && | |
1420 | trace__read_syscall_info(trace, id)) | |
1421 | goto out_cant_read; | |
1422 | ||
1423 | if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL)) | |
1424 | goto out_cant_read; | |
1425 | ||
1426 | return &trace->syscalls.table[id]; | |
1427 | ||
1428 | out_cant_read: | |
bb963e16 | 1429 | if (verbose > 0) { |
7c304ee0 ACM |
1430 | fprintf(trace->output, "Problems reading syscall %d", id); |
1431 | if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) | |
1432 | fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); | |
1433 | fputs(" information\n", trace->output); | |
1434 | } | |
ba3d7dee ACM |
1435 | return NULL; |
1436 | } | |
1437 | ||
bf2575c1 DA |
1438 | static void thread__update_stats(struct thread_trace *ttrace, |
1439 | int id, struct perf_sample *sample) | |
1440 | { | |
1441 | struct int_node *inode; | |
1442 | struct stats *stats; | |
1443 | u64 duration = 0; | |
1444 | ||
1445 | inode = intlist__findnew(ttrace->syscall_stats, id); | |
1446 | if (inode == NULL) | |
1447 | return; | |
1448 | ||
1449 | stats = inode->priv; | |
1450 | if (stats == NULL) { | |
1451 | stats = malloc(sizeof(struct stats)); | |
1452 | if (stats == NULL) | |
1453 | return; | |
1454 | init_stats(stats); | |
1455 | inode->priv = stats; | |
1456 | } | |
1457 | ||
1458 | if (ttrace->entry_time && sample->time > ttrace->entry_time) | |
1459 | duration = sample->time - ttrace->entry_time; | |
1460 | ||
1461 | update_stats(stats, duration); | |
1462 | } | |
1463 | ||
e596663e ACM |
1464 | static int trace__printf_interrupted_entry(struct trace *trace, struct perf_sample *sample) |
1465 | { | |
1466 | struct thread_trace *ttrace; | |
1467 | u64 duration; | |
1468 | size_t printed; | |
1469 | ||
1470 | if (trace->current == NULL) | |
1471 | return 0; | |
1472 | ||
1473 | ttrace = thread__priv(trace->current); | |
1474 | ||
1475 | if (!ttrace->entry_pending) | |
1476 | return 0; | |
1477 | ||
1478 | duration = sample->time - ttrace->entry_time; | |
1479 | ||
fd2b2975 | 1480 | printed = trace__fprintf_entry_head(trace, trace->current, duration, true, ttrace->entry_time, trace->output); |
e596663e ACM |
1481 | printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str); |
1482 | ttrace->entry_pending = false; | |
1483 | ||
1484 | return printed; | |
1485 | } | |
1486 | ||
ba3d7dee | 1487 | static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1488 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1489 | struct perf_sample *sample) |
1490 | { | |
752fde44 | 1491 | char *msg; |
ba3d7dee | 1492 | void *args; |
752fde44 | 1493 | size_t printed = 0; |
2ae3a312 | 1494 | struct thread *thread; |
b91fc39f | 1495 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1; |
bf2575c1 | 1496 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1497 | struct thread_trace *ttrace; |
1498 | ||
1499 | if (sc == NULL) | |
1500 | return -1; | |
ba3d7dee | 1501 | |
8fb598e5 | 1502 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1503 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1504 | if (ttrace == NULL) |
b91fc39f | 1505 | goto out_put; |
ba3d7dee | 1506 | |
77170988 | 1507 | args = perf_evsel__sc_tp_ptr(evsel, args, sample); |
752fde44 ACM |
1508 | |
1509 | if (ttrace->entry_str == NULL) { | |
e4d44e83 | 1510 | ttrace->entry_str = malloc(trace__entry_str_size); |
752fde44 | 1511 | if (!ttrace->entry_str) |
b91fc39f | 1512 | goto out_put; |
752fde44 ACM |
1513 | } |
1514 | ||
5cf9c84e | 1515 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) |
6ebad5c1 | 1516 | trace__printf_interrupted_entry(trace, sample); |
e596663e | 1517 | |
752fde44 ACM |
1518 | ttrace->entry_time = sample->time; |
1519 | msg = ttrace->entry_str; | |
e4d44e83 | 1520 | printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name); |
752fde44 | 1521 | |
e4d44e83 | 1522 | printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed, |
75b757ca | 1523 | args, trace, thread); |
752fde44 | 1524 | |
5089f20e | 1525 | if (sc->is_exit) { |
5cf9c84e | 1526 | if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) { |
fd2b2975 | 1527 | trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output); |
c008f78f | 1528 | fprintf(trace->output, "%-70s)\n", ttrace->entry_str); |
ae9ed035 | 1529 | } |
7f4f8001 | 1530 | } else { |
752fde44 | 1531 | ttrace->entry_pending = true; |
7f4f8001 ACM |
1532 | /* See trace__vfs_getname & trace__sys_exit */ |
1533 | ttrace->filename.pending_open = false; | |
1534 | } | |
ba3d7dee | 1535 | |
f3b623b8 ACM |
1536 | if (trace->current != thread) { |
1537 | thread__put(trace->current); | |
1538 | trace->current = thread__get(thread); | |
1539 | } | |
b91fc39f ACM |
1540 | err = 0; |
1541 | out_put: | |
1542 | thread__put(thread); | |
1543 | return err; | |
ba3d7dee ACM |
1544 | } |
1545 | ||
5cf9c84e ACM |
1546 | static int trace__resolve_callchain(struct trace *trace, struct perf_evsel *evsel, |
1547 | struct perf_sample *sample, | |
1548 | struct callchain_cursor *cursor) | |
202ff968 ACM |
1549 | { |
1550 | struct addr_location al; | |
5cf9c84e ACM |
1551 | |
1552 | if (machine__resolve(trace->host, &al, sample) < 0 || | |
1553 | thread__resolve_callchain(al.thread, cursor, evsel, sample, NULL, NULL, trace->max_stack)) | |
1554 | return -1; | |
1555 | ||
1556 | return 0; | |
1557 | } | |
1558 | ||
1559 | static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sample) | |
1560 | { | |
202ff968 | 1561 | /* TODO: user-configurable print_opts */ |
e20ab86e ACM |
1562 | const unsigned int print_opts = EVSEL__PRINT_SYM | |
1563 | EVSEL__PRINT_DSO | | |
1564 | EVSEL__PRINT_UNKNOWN_AS_ADDR; | |
202ff968 | 1565 | |
d327e60c | 1566 | return sample__fprintf_callchain(sample, 38, print_opts, &callchain_cursor, trace->output); |
202ff968 ACM |
1567 | } |
1568 | ||
ba3d7dee | 1569 | static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1570 | union perf_event *event __maybe_unused, |
ba3d7dee ACM |
1571 | struct perf_sample *sample) |
1572 | { | |
2c82c3ad | 1573 | long ret; |
60c907ab | 1574 | u64 duration = 0; |
fd2b2975 | 1575 | bool duration_calculated = false; |
2ae3a312 | 1576 | struct thread *thread; |
5cf9c84e | 1577 | int id = perf_evsel__sc_tp_uint(evsel, id, sample), err = -1, callchain_ret = 0; |
bf2575c1 | 1578 | struct syscall *sc = trace__syscall_info(trace, evsel, id); |
2ae3a312 ACM |
1579 | struct thread_trace *ttrace; |
1580 | ||
1581 | if (sc == NULL) | |
1582 | return -1; | |
ba3d7dee | 1583 | |
8fb598e5 | 1584 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
c24ff998 | 1585 | ttrace = thread__trace(thread, trace->output); |
2ae3a312 | 1586 | if (ttrace == NULL) |
b91fc39f | 1587 | goto out_put; |
ba3d7dee | 1588 | |
bf2575c1 DA |
1589 | if (trace->summary) |
1590 | thread__update_stats(ttrace, id, sample); | |
1591 | ||
77170988 | 1592 | ret = perf_evsel__sc_tp_uint(evsel, ret, sample); |
ba3d7dee | 1593 | |
fd0db102 | 1594 | if (id == trace->open_id && ret >= 0 && ttrace->filename.pending_open) { |
7f4f8001 ACM |
1595 | trace__set_fd_pathname(thread, ret, ttrace->filename.name); |
1596 | ttrace->filename.pending_open = false; | |
c522739d ACM |
1597 | ++trace->stats.vfs_getname; |
1598 | } | |
1599 | ||
ae9ed035 | 1600 | if (ttrace->entry_time) { |
60c907ab | 1601 | duration = sample->time - ttrace->entry_time; |
ae9ed035 ACM |
1602 | if (trace__filter_duration(trace, duration)) |
1603 | goto out; | |
fd2b2975 | 1604 | duration_calculated = true; |
ae9ed035 ACM |
1605 | } else if (trace->duration_filter) |
1606 | goto out; | |
60c907ab | 1607 | |
5cf9c84e ACM |
1608 | if (sample->callchain) { |
1609 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1610 | if (callchain_ret == 0) { | |
1611 | if (callchain_cursor.nr < trace->min_stack) | |
1612 | goto out; | |
1613 | callchain_ret = 1; | |
1614 | } | |
1615 | } | |
1616 | ||
fd2eabaf DA |
1617 | if (trace->summary_only) |
1618 | goto out; | |
1619 | ||
fd2b2975 | 1620 | trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output); |
752fde44 ACM |
1621 | |
1622 | if (ttrace->entry_pending) { | |
c24ff998 | 1623 | fprintf(trace->output, "%-70s", ttrace->entry_str); |
752fde44 | 1624 | } else { |
c24ff998 ACM |
1625 | fprintf(trace->output, " ... ["); |
1626 | color_fprintf(trace->output, PERF_COLOR_YELLOW, "continued"); | |
1627 | fprintf(trace->output, "]: %s()", sc->name); | |
752fde44 ACM |
1628 | } |
1629 | ||
da3c9a44 ACM |
1630 | if (sc->fmt == NULL) { |
1631 | signed_print: | |
2c82c3ad | 1632 | fprintf(trace->output, ") = %ld", ret); |
11c8e39f | 1633 | } else if (ret < 0 && (sc->fmt->errmsg || sc->fmt->errpid)) { |
942a91ed | 1634 | char bf[STRERR_BUFSIZE]; |
c8b5f2c9 | 1635 | const char *emsg = str_error_r(-ret, bf, sizeof(bf)), |
ba3d7dee ACM |
1636 | *e = audit_errno_to_name(-ret); |
1637 | ||
c24ff998 | 1638 | fprintf(trace->output, ") = -1 %s %s", e, emsg); |
da3c9a44 | 1639 | } else if (ret == 0 && sc->fmt->timeout) |
c24ff998 | 1640 | fprintf(trace->output, ") = 0 Timeout"); |
04b34729 | 1641 | else if (sc->fmt->hexret) |
2c82c3ad | 1642 | fprintf(trace->output, ") = %#lx", ret); |
11c8e39f ACM |
1643 | else if (sc->fmt->errpid) { |
1644 | struct thread *child = machine__find_thread(trace->host, ret, ret); | |
1645 | ||
1646 | if (child != NULL) { | |
1647 | fprintf(trace->output, ") = %ld", ret); | |
1648 | if (child->comm_set) | |
1649 | fprintf(trace->output, " (%s)", thread__comm_str(child)); | |
1650 | thread__put(child); | |
1651 | } | |
1652 | } else | |
da3c9a44 | 1653 | goto signed_print; |
ba3d7dee | 1654 | |
c24ff998 | 1655 | fputc('\n', trace->output); |
566a0885 | 1656 | |
5cf9c84e ACM |
1657 | if (callchain_ret > 0) |
1658 | trace__fprintf_callchain(trace, sample); | |
1659 | else if (callchain_ret < 0) | |
1660 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
ae9ed035 | 1661 | out: |
752fde44 | 1662 | ttrace->entry_pending = false; |
b91fc39f ACM |
1663 | err = 0; |
1664 | out_put: | |
1665 | thread__put(thread); | |
1666 | return err; | |
ba3d7dee ACM |
1667 | } |
1668 | ||
c522739d | 1669 | static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1670 | union perf_event *event __maybe_unused, |
c522739d ACM |
1671 | struct perf_sample *sample) |
1672 | { | |
f994592d ACM |
1673 | struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
1674 | struct thread_trace *ttrace; | |
1675 | size_t filename_len, entry_str_len, to_move; | |
1676 | ssize_t remaining_space; | |
1677 | char *pos; | |
7f4f8001 | 1678 | const char *filename = perf_evsel__rawptr(evsel, sample, "pathname"); |
f994592d ACM |
1679 | |
1680 | if (!thread) | |
1681 | goto out; | |
1682 | ||
1683 | ttrace = thread__priv(thread); | |
1684 | if (!ttrace) | |
ef65e96e | 1685 | goto out_put; |
f994592d | 1686 | |
7f4f8001 | 1687 | filename_len = strlen(filename); |
39f0e7a8 | 1688 | if (filename_len == 0) |
ef65e96e | 1689 | goto out_put; |
7f4f8001 ACM |
1690 | |
1691 | if (ttrace->filename.namelen < filename_len) { | |
1692 | char *f = realloc(ttrace->filename.name, filename_len + 1); | |
1693 | ||
1694 | if (f == NULL) | |
ef65e96e | 1695 | goto out_put; |
7f4f8001 ACM |
1696 | |
1697 | ttrace->filename.namelen = filename_len; | |
1698 | ttrace->filename.name = f; | |
1699 | } | |
1700 | ||
1701 | strcpy(ttrace->filename.name, filename); | |
1702 | ttrace->filename.pending_open = true; | |
1703 | ||
f994592d | 1704 | if (!ttrace->filename.ptr) |
ef65e96e | 1705 | goto out_put; |
f994592d ACM |
1706 | |
1707 | entry_str_len = strlen(ttrace->entry_str); | |
1708 | remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */ | |
1709 | if (remaining_space <= 0) | |
ef65e96e | 1710 | goto out_put; |
f994592d | 1711 | |
f994592d ACM |
1712 | if (filename_len > (size_t)remaining_space) { |
1713 | filename += filename_len - remaining_space; | |
1714 | filename_len = remaining_space; | |
1715 | } | |
1716 | ||
1717 | to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */ | |
1718 | pos = ttrace->entry_str + ttrace->filename.entry_str_pos; | |
1719 | memmove(pos + filename_len, pos, to_move); | |
1720 | memcpy(pos, filename, filename_len); | |
1721 | ||
1722 | ttrace->filename.ptr = 0; | |
1723 | ttrace->filename.entry_str_pos = 0; | |
ef65e96e ACM |
1724 | out_put: |
1725 | thread__put(thread); | |
f994592d | 1726 | out: |
c522739d ACM |
1727 | return 0; |
1728 | } | |
1729 | ||
1302d88e | 1730 | static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, |
0c82adcf | 1731 | union perf_event *event __maybe_unused, |
1302d88e ACM |
1732 | struct perf_sample *sample) |
1733 | { | |
1734 | u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); | |
1735 | double runtime_ms = (double)runtime / NSEC_PER_MSEC; | |
8fb598e5 | 1736 | struct thread *thread = machine__findnew_thread(trace->host, |
314add6b AH |
1737 | sample->pid, |
1738 | sample->tid); | |
c24ff998 | 1739 | struct thread_trace *ttrace = thread__trace(thread, trace->output); |
1302d88e ACM |
1740 | |
1741 | if (ttrace == NULL) | |
1742 | goto out_dump; | |
1743 | ||
1744 | ttrace->runtime_ms += runtime_ms; | |
1745 | trace->runtime_ms += runtime_ms; | |
ef65e96e | 1746 | out_put: |
b91fc39f | 1747 | thread__put(thread); |
1302d88e ACM |
1748 | return 0; |
1749 | ||
1750 | out_dump: | |
c24ff998 | 1751 | fprintf(trace->output, "%s: comm=%s,pid=%u,runtime=%" PRIu64 ",vruntime=%" PRIu64 ")\n", |
1302d88e ACM |
1752 | evsel->name, |
1753 | perf_evsel__strval(evsel, sample, "comm"), | |
1754 | (pid_t)perf_evsel__intval(evsel, sample, "pid"), | |
1755 | runtime, | |
1756 | perf_evsel__intval(evsel, sample, "vruntime")); | |
ef65e96e | 1757 | goto out_put; |
1302d88e ACM |
1758 | } |
1759 | ||
1d6c9407 WN |
1760 | static void bpf_output__printer(enum binary_printer_ops op, |
1761 | unsigned int val, void *extra) | |
1762 | { | |
1763 | FILE *output = extra; | |
1764 | unsigned char ch = (unsigned char)val; | |
1765 | ||
1766 | switch (op) { | |
1767 | case BINARY_PRINT_CHAR_DATA: | |
1768 | fprintf(output, "%c", isprint(ch) ? ch : '.'); | |
1769 | break; | |
1770 | case BINARY_PRINT_DATA_BEGIN: | |
1771 | case BINARY_PRINT_LINE_BEGIN: | |
1772 | case BINARY_PRINT_ADDR: | |
1773 | case BINARY_PRINT_NUM_DATA: | |
1774 | case BINARY_PRINT_NUM_PAD: | |
1775 | case BINARY_PRINT_SEP: | |
1776 | case BINARY_PRINT_CHAR_PAD: | |
1777 | case BINARY_PRINT_LINE_END: | |
1778 | case BINARY_PRINT_DATA_END: | |
1779 | default: | |
1780 | break; | |
1781 | } | |
1782 | } | |
1783 | ||
1784 | static void bpf_output__fprintf(struct trace *trace, | |
1785 | struct perf_sample *sample) | |
1786 | { | |
1787 | print_binary(sample->raw_data, sample->raw_size, 8, | |
1788 | bpf_output__printer, trace->output); | |
1789 | } | |
1790 | ||
14a052df ACM |
1791 | static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel, |
1792 | union perf_event *event __maybe_unused, | |
1793 | struct perf_sample *sample) | |
1794 | { | |
7ad35615 ACM |
1795 | int callchain_ret = 0; |
1796 | ||
1797 | if (sample->callchain) { | |
1798 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1799 | if (callchain_ret == 0) { | |
1800 | if (callchain_cursor.nr < trace->min_stack) | |
1801 | goto out; | |
1802 | callchain_ret = 1; | |
1803 | } | |
1804 | } | |
1805 | ||
14a052df ACM |
1806 | trace__printf_interrupted_entry(trace, sample); |
1807 | trace__fprintf_tstamp(trace, sample->time, trace->output); | |
0808921a ACM |
1808 | |
1809 | if (trace->trace_syscalls) | |
1810 | fprintf(trace->output, "( ): "); | |
1811 | ||
1812 | fprintf(trace->output, "%s:", evsel->name); | |
14a052df | 1813 | |
1d6c9407 WN |
1814 | if (perf_evsel__is_bpf_output(evsel)) { |
1815 | bpf_output__fprintf(trace, sample); | |
1816 | } else if (evsel->tp_format) { | |
14a052df ACM |
1817 | event_format__fprintf(evsel->tp_format, sample->cpu, |
1818 | sample->raw_data, sample->raw_size, | |
1819 | trace->output); | |
1820 | } | |
1821 | ||
1822 | fprintf(trace->output, ")\n"); | |
202ff968 | 1823 | |
7ad35615 ACM |
1824 | if (callchain_ret > 0) |
1825 | trace__fprintf_callchain(trace, sample); | |
1826 | else if (callchain_ret < 0) | |
1827 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
1828 | out: | |
14a052df ACM |
1829 | return 0; |
1830 | } | |
1831 | ||
598d02c5 SF |
1832 | static void print_location(FILE *f, struct perf_sample *sample, |
1833 | struct addr_location *al, | |
1834 | bool print_dso, bool print_sym) | |
1835 | { | |
1836 | ||
bb963e16 | 1837 | if ((verbose > 0 || print_dso) && al->map) |
598d02c5 SF |
1838 | fprintf(f, "%s@", al->map->dso->long_name); |
1839 | ||
bb963e16 | 1840 | if ((verbose > 0 || print_sym) && al->sym) |
4414a3c5 | 1841 | fprintf(f, "%s+0x%" PRIx64, al->sym->name, |
598d02c5 SF |
1842 | al->addr - al->sym->start); |
1843 | else if (al->map) | |
4414a3c5 | 1844 | fprintf(f, "0x%" PRIx64, al->addr); |
598d02c5 | 1845 | else |
4414a3c5 | 1846 | fprintf(f, "0x%" PRIx64, sample->addr); |
598d02c5 SF |
1847 | } |
1848 | ||
1849 | static int trace__pgfault(struct trace *trace, | |
1850 | struct perf_evsel *evsel, | |
473398a2 | 1851 | union perf_event *event __maybe_unused, |
598d02c5 SF |
1852 | struct perf_sample *sample) |
1853 | { | |
1854 | struct thread *thread; | |
598d02c5 SF |
1855 | struct addr_location al; |
1856 | char map_type = 'd'; | |
a2ea67d7 | 1857 | struct thread_trace *ttrace; |
b91fc39f | 1858 | int err = -1; |
1df54290 | 1859 | int callchain_ret = 0; |
598d02c5 SF |
1860 | |
1861 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); | |
1df54290 ACM |
1862 | |
1863 | if (sample->callchain) { | |
1864 | callchain_ret = trace__resolve_callchain(trace, evsel, sample, &callchain_cursor); | |
1865 | if (callchain_ret == 0) { | |
1866 | if (callchain_cursor.nr < trace->min_stack) | |
1867 | goto out_put; | |
1868 | callchain_ret = 1; | |
1869 | } | |
1870 | } | |
1871 | ||
a2ea67d7 SF |
1872 | ttrace = thread__trace(thread, trace->output); |
1873 | if (ttrace == NULL) | |
b91fc39f | 1874 | goto out_put; |
a2ea67d7 SF |
1875 | |
1876 | if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) | |
1877 | ttrace->pfmaj++; | |
1878 | else | |
1879 | ttrace->pfmin++; | |
1880 | ||
1881 | if (trace->summary_only) | |
b91fc39f | 1882 | goto out; |
598d02c5 | 1883 | |
473398a2 | 1884 | thread__find_addr_location(thread, sample->cpumode, MAP__FUNCTION, |
598d02c5 SF |
1885 | sample->ip, &al); |
1886 | ||
fd2b2975 | 1887 | trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output); |
598d02c5 SF |
1888 | |
1889 | fprintf(trace->output, "%sfault [", | |
1890 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? | |
1891 | "maj" : "min"); | |
1892 | ||
1893 | print_location(trace->output, sample, &al, false, true); | |
1894 | ||
1895 | fprintf(trace->output, "] => "); | |
1896 | ||
473398a2 | 1897 | thread__find_addr_location(thread, sample->cpumode, MAP__VARIABLE, |
598d02c5 SF |
1898 | sample->addr, &al); |
1899 | ||
1900 | if (!al.map) { | |
473398a2 | 1901 | thread__find_addr_location(thread, sample->cpumode, |
598d02c5 SF |
1902 | MAP__FUNCTION, sample->addr, &al); |
1903 | ||
1904 | if (al.map) | |
1905 | map_type = 'x'; | |
1906 | else | |
1907 | map_type = '?'; | |
1908 | } | |
1909 | ||
1910 | print_location(trace->output, sample, &al, true, false); | |
1911 | ||
1912 | fprintf(trace->output, " (%c%c)\n", map_type, al.level); | |
0c3a6ef4 | 1913 | |
1df54290 ACM |
1914 | if (callchain_ret > 0) |
1915 | trace__fprintf_callchain(trace, sample); | |
1916 | else if (callchain_ret < 0) | |
1917 | pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel)); | |
b91fc39f ACM |
1918 | out: |
1919 | err = 0; | |
1920 | out_put: | |
1921 | thread__put(thread); | |
1922 | return err; | |
598d02c5 SF |
1923 | } |
1924 | ||
e6001980 | 1925 | static void trace__set_base_time(struct trace *trace, |
8a07a809 | 1926 | struct perf_evsel *evsel, |
e6001980 ACM |
1927 | struct perf_sample *sample) |
1928 | { | |
8a07a809 ACM |
1929 | /* |
1930 | * BPF events were not setting PERF_SAMPLE_TIME, so be more robust | |
1931 | * and don't use sample->time unconditionally, we may end up having | |
1932 | * some other event in the future without PERF_SAMPLE_TIME for good | |
1933 | * reason, i.e. we may not be interested in its timestamps, just in | |
1934 | * it taking place, picking some piece of information when it | |
1935 | * appears in our event stream (vfs_getname comes to mind). | |
1936 | */ | |
1937 | if (trace->base_time == 0 && !trace->full_time && | |
1938 | (evsel->attr.sample_type & PERF_SAMPLE_TIME)) | |
e6001980 ACM |
1939 | trace->base_time = sample->time; |
1940 | } | |
1941 | ||
6810fc91 | 1942 | static int trace__process_sample(struct perf_tool *tool, |
0c82adcf | 1943 | union perf_event *event, |
6810fc91 DA |
1944 | struct perf_sample *sample, |
1945 | struct perf_evsel *evsel, | |
1946 | struct machine *machine __maybe_unused) | |
1947 | { | |
1948 | struct trace *trace = container_of(tool, struct trace, tool); | |
aa07df6e | 1949 | struct thread *thread; |
6810fc91 DA |
1950 | int err = 0; |
1951 | ||
744a9719 | 1952 | tracepoint_handler handler = evsel->handler; |
6810fc91 | 1953 | |
aa07df6e DA |
1954 | thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); |
1955 | if (thread && thread__is_filtered(thread)) | |
ef65e96e | 1956 | goto out; |
bdc89661 | 1957 | |
e6001980 | 1958 | trace__set_base_time(trace, evsel, sample); |
6810fc91 | 1959 | |
3160565f DA |
1960 | if (handler) { |
1961 | ++trace->nr_events; | |
0c82adcf | 1962 | handler(trace, evsel, event, sample); |
3160565f | 1963 | } |
ef65e96e ACM |
1964 | out: |
1965 | thread__put(thread); | |
6810fc91 DA |
1966 | return err; |
1967 | } | |
1968 | ||
1e28fe0a | 1969 | static int trace__record(struct trace *trace, int argc, const char **argv) |
5e2485b1 DA |
1970 | { |
1971 | unsigned int rec_argc, i, j; | |
1972 | const char **rec_argv; | |
1973 | const char * const record_args[] = { | |
1974 | "record", | |
1975 | "-R", | |
1976 | "-m", "1024", | |
1977 | "-c", "1", | |
5e2485b1 DA |
1978 | }; |
1979 | ||
1e28fe0a SF |
1980 | const char * const sc_args[] = { "-e", }; |
1981 | unsigned int sc_args_nr = ARRAY_SIZE(sc_args); | |
1982 | const char * const majpf_args[] = { "-e", "major-faults" }; | |
1983 | unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); | |
1984 | const char * const minpf_args[] = { "-e", "minor-faults" }; | |
1985 | unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); | |
1986 | ||
9aca7f17 | 1987 | /* +1 is for the event string below */ |
1e28fe0a SF |
1988 | rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + |
1989 | majpf_args_nr + minpf_args_nr + argc; | |
5e2485b1 DA |
1990 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1991 | ||
1992 | if (rec_argv == NULL) | |
1993 | return -ENOMEM; | |
1994 | ||
1e28fe0a | 1995 | j = 0; |
5e2485b1 | 1996 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1e28fe0a SF |
1997 | rec_argv[j++] = record_args[i]; |
1998 | ||
e281a960 SF |
1999 | if (trace->trace_syscalls) { |
2000 | for (i = 0; i < sc_args_nr; i++) | |
2001 | rec_argv[j++] = sc_args[i]; | |
2002 | ||
2003 | /* event string may be different for older kernels - e.g., RHEL6 */ | |
2004 | if (is_valid_tracepoint("raw_syscalls:sys_enter")) | |
2005 | rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; | |
2006 | else if (is_valid_tracepoint("syscalls:sys_enter")) | |
2007 | rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; | |
2008 | else { | |
2009 | pr_err("Neither raw_syscalls nor syscalls events exist.\n"); | |
2010 | return -1; | |
2011 | } | |
9aca7f17 | 2012 | } |
9aca7f17 | 2013 | |
1e28fe0a SF |
2014 | if (trace->trace_pgfaults & TRACE_PFMAJ) |
2015 | for (i = 0; i < majpf_args_nr; i++) | |
2016 | rec_argv[j++] = majpf_args[i]; | |
2017 | ||
2018 | if (trace->trace_pgfaults & TRACE_PFMIN) | |
2019 | for (i = 0; i < minpf_args_nr; i++) | |
2020 | rec_argv[j++] = minpf_args[i]; | |
2021 | ||
2022 | for (i = 0; i < (unsigned int)argc; i++) | |
2023 | rec_argv[j++] = argv[i]; | |
5e2485b1 | 2024 | |
b0ad8ea6 | 2025 | return cmd_record(j, rec_argv); |
5e2485b1 DA |
2026 | } |
2027 | ||
bf2575c1 DA |
2028 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); |
2029 | ||
08c98776 | 2030 | static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) |
c522739d | 2031 | { |
ef503831 | 2032 | struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); |
8dd2a131 JO |
2033 | |
2034 | if (IS_ERR(evsel)) | |
08c98776 | 2035 | return false; |
c522739d ACM |
2036 | |
2037 | if (perf_evsel__field(evsel, "pathname") == NULL) { | |
2038 | perf_evsel__delete(evsel); | |
08c98776 | 2039 | return false; |
c522739d ACM |
2040 | } |
2041 | ||
744a9719 | 2042 | evsel->handler = trace__vfs_getname; |
c522739d | 2043 | perf_evlist__add(evlist, evsel); |
08c98776 | 2044 | return true; |
c522739d ACM |
2045 | } |
2046 | ||
0ae537cb | 2047 | static struct perf_evsel *perf_evsel__new_pgfault(u64 config) |
598d02c5 SF |
2048 | { |
2049 | struct perf_evsel *evsel; | |
2050 | struct perf_event_attr attr = { | |
2051 | .type = PERF_TYPE_SOFTWARE, | |
2052 | .mmap_data = 1, | |
598d02c5 SF |
2053 | }; |
2054 | ||
2055 | attr.config = config; | |
0524798c | 2056 | attr.sample_period = 1; |
598d02c5 SF |
2057 | |
2058 | event_attr_init(&attr); | |
2059 | ||
2060 | evsel = perf_evsel__new(&attr); | |
0ae537cb ACM |
2061 | if (evsel) |
2062 | evsel->handler = trace__pgfault; | |
598d02c5 | 2063 | |
0ae537cb | 2064 | return evsel; |
598d02c5 SF |
2065 | } |
2066 | ||
ddbb1b13 ACM |
2067 | static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample) |
2068 | { | |
2069 | const u32 type = event->header.type; | |
2070 | struct perf_evsel *evsel; | |
2071 | ||
ddbb1b13 ACM |
2072 | if (type != PERF_RECORD_SAMPLE) { |
2073 | trace__process_event(trace, trace->host, event, sample); | |
2074 | return; | |
2075 | } | |
2076 | ||
2077 | evsel = perf_evlist__id2evsel(trace->evlist, sample->id); | |
2078 | if (evsel == NULL) { | |
2079 | fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id); | |
2080 | return; | |
2081 | } | |
2082 | ||
e6001980 ACM |
2083 | trace__set_base_time(trace, evsel, sample); |
2084 | ||
ddbb1b13 ACM |
2085 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT && |
2086 | sample->raw_data == NULL) { | |
2087 | fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", | |
2088 | perf_evsel__name(evsel), sample->tid, | |
2089 | sample->cpu, sample->raw_size); | |
2090 | } else { | |
2091 | tracepoint_handler handler = evsel->handler; | |
2092 | handler(trace, evsel, event, sample); | |
2093 | } | |
2094 | } | |
2095 | ||
c27366f0 ACM |
2096 | static int trace__add_syscall_newtp(struct trace *trace) |
2097 | { | |
2098 | int ret = -1; | |
2099 | struct perf_evlist *evlist = trace->evlist; | |
2100 | struct perf_evsel *sys_enter, *sys_exit; | |
2101 | ||
2102 | sys_enter = perf_evsel__syscall_newtp("sys_enter", trace__sys_enter); | |
2103 | if (sys_enter == NULL) | |
2104 | goto out; | |
2105 | ||
2106 | if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args)) | |
2107 | goto out_delete_sys_enter; | |
2108 | ||
2109 | sys_exit = perf_evsel__syscall_newtp("sys_exit", trace__sys_exit); | |
2110 | if (sys_exit == NULL) | |
2111 | goto out_delete_sys_enter; | |
2112 | ||
2113 | if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret)) | |
2114 | goto out_delete_sys_exit; | |
2115 | ||
2116 | perf_evlist__add(evlist, sys_enter); | |
2117 | perf_evlist__add(evlist, sys_exit); | |
2118 | ||
2ddd5c04 | 2119 | if (callchain_param.enabled && !trace->kernel_syscallchains) { |
44621819 ACM |
2120 | /* |
2121 | * We're interested only in the user space callchain | |
2122 | * leading to the syscall, allow overriding that for | |
2123 | * debugging reasons using --kernel_syscall_callchains | |
2124 | */ | |
2125 | sys_exit->attr.exclude_callchain_kernel = 1; | |
2126 | } | |
2127 | ||
8b3ce757 ACM |
2128 | trace->syscalls.events.sys_enter = sys_enter; |
2129 | trace->syscalls.events.sys_exit = sys_exit; | |
c27366f0 ACM |
2130 | |
2131 | ret = 0; | |
2132 | out: | |
2133 | return ret; | |
2134 | ||
2135 | out_delete_sys_exit: | |
2136 | perf_evsel__delete_priv(sys_exit); | |
2137 | out_delete_sys_enter: | |
2138 | perf_evsel__delete_priv(sys_enter); | |
2139 | goto out; | |
2140 | } | |
2141 | ||
19867b61 ACM |
2142 | static int trace__set_ev_qualifier_filter(struct trace *trace) |
2143 | { | |
2144 | int err = -1; | |
b15d0a4c | 2145 | struct perf_evsel *sys_exit; |
19867b61 ACM |
2146 | char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier, |
2147 | trace->ev_qualifier_ids.nr, | |
2148 | trace->ev_qualifier_ids.entries); | |
2149 | ||
2150 | if (filter == NULL) | |
2151 | goto out_enomem; | |
2152 | ||
3541c034 MP |
2153 | if (!perf_evsel__append_tp_filter(trace->syscalls.events.sys_enter, |
2154 | filter)) { | |
b15d0a4c | 2155 | sys_exit = trace->syscalls.events.sys_exit; |
3541c034 | 2156 | err = perf_evsel__append_tp_filter(sys_exit, filter); |
b15d0a4c | 2157 | } |
19867b61 ACM |
2158 | |
2159 | free(filter); | |
2160 | out: | |
2161 | return err; | |
2162 | out_enomem: | |
2163 | errno = ENOMEM; | |
2164 | goto out; | |
2165 | } | |
c27366f0 | 2166 | |
f15eb531 | 2167 | static int trace__run(struct trace *trace, int argc, const char **argv) |
514f1c67 | 2168 | { |
14a052df | 2169 | struct perf_evlist *evlist = trace->evlist; |
0ae537cb | 2170 | struct perf_evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL; |
efd5745e ACM |
2171 | int err = -1, i; |
2172 | unsigned long before; | |
f15eb531 | 2173 | const bool forks = argc > 0; |
46fb3c21 | 2174 | bool draining = false; |
514f1c67 | 2175 | |
75b757ca ACM |
2176 | trace->live = true; |
2177 | ||
c27366f0 | 2178 | if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) |
801c67b0 | 2179 | goto out_error_raw_syscalls; |
514f1c67 | 2180 | |
e281a960 | 2181 | if (trace->trace_syscalls) |
08c98776 | 2182 | trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); |
c522739d | 2183 | |
0ae537cb ACM |
2184 | if ((trace->trace_pgfaults & TRACE_PFMAJ)) { |
2185 | pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); | |
2186 | if (pgfault_maj == NULL) | |
2187 | goto out_error_mem; | |
2188 | perf_evlist__add(evlist, pgfault_maj); | |
e2726d99 | 2189 | } |
598d02c5 | 2190 | |
0ae537cb ACM |
2191 | if ((trace->trace_pgfaults & TRACE_PFMIN)) { |
2192 | pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN); | |
2193 | if (pgfault_min == NULL) | |
2194 | goto out_error_mem; | |
2195 | perf_evlist__add(evlist, pgfault_min); | |
2196 | } | |
598d02c5 | 2197 | |
1302d88e | 2198 | if (trace->sched && |
2cc990ba ACM |
2199 | perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", |
2200 | trace__sched_stat_runtime)) | |
2201 | goto out_error_sched_stat_runtime; | |
1302d88e | 2202 | |
514f1c67 ACM |
2203 | err = perf_evlist__create_maps(evlist, &trace->opts.target); |
2204 | if (err < 0) { | |
c24ff998 | 2205 | fprintf(trace->output, "Problems parsing the target to trace, check your options!\n"); |
514f1c67 ACM |
2206 | goto out_delete_evlist; |
2207 | } | |
2208 | ||
752fde44 ACM |
2209 | err = trace__symbols_init(trace, evlist); |
2210 | if (err < 0) { | |
c24ff998 | 2211 | fprintf(trace->output, "Problems initializing symbol libraries!\n"); |
03ad9747 | 2212 | goto out_delete_evlist; |
752fde44 ACM |
2213 | } |
2214 | ||
fde54b78 ACM |
2215 | perf_evlist__config(evlist, &trace->opts, NULL); |
2216 | ||
0c3a6ef4 ACM |
2217 | if (callchain_param.enabled) { |
2218 | bool use_identifier = false; | |
2219 | ||
2220 | if (trace->syscalls.events.sys_exit) { | |
2221 | perf_evsel__config_callchain(trace->syscalls.events.sys_exit, | |
2222 | &trace->opts, &callchain_param); | |
2223 | use_identifier = true; | |
2224 | } | |
2225 | ||
2226 | if (pgfault_maj) { | |
2227 | perf_evsel__config_callchain(pgfault_maj, &trace->opts, &callchain_param); | |
2228 | use_identifier = true; | |
2229 | } | |
2230 | ||
2231 | if (pgfault_min) { | |
2232 | perf_evsel__config_callchain(pgfault_min, &trace->opts, &callchain_param); | |
2233 | use_identifier = true; | |
2234 | } | |
2235 | ||
2236 | if (use_identifier) { | |
2237 | /* | |
2238 | * Now we have evsels with different sample_ids, use | |
2239 | * PERF_SAMPLE_IDENTIFIER to map from sample to evsel | |
2240 | * from a fixed position in each ring buffer record. | |
2241 | * | |
2242 | * As of this the changeset introducing this comment, this | |
2243 | * isn't strictly needed, as the fields that can come before | |
2244 | * PERF_SAMPLE_ID are all used, but we'll probably disable | |
2245 | * some of those for things like copying the payload of | |
2246 | * pointer syscall arguments, and for vfs_getname we don't | |
2247 | * need PERF_SAMPLE_ADDR and PERF_SAMPLE_IP, so do this | |
2248 | * here as a warning we need to use PERF_SAMPLE_IDENTIFIER. | |
2249 | */ | |
2250 | perf_evlist__set_sample_bit(evlist, IDENTIFIER); | |
2251 | perf_evlist__reset_sample_bit(evlist, ID); | |
2252 | } | |
fde54b78 | 2253 | } |
514f1c67 | 2254 | |
f15eb531 NK |
2255 | signal(SIGCHLD, sig_handler); |
2256 | signal(SIGINT, sig_handler); | |
2257 | ||
2258 | if (forks) { | |
6ef73ec4 | 2259 | err = perf_evlist__prepare_workload(evlist, &trace->opts.target, |
735f7e0b | 2260 | argv, false, NULL); |
f15eb531 | 2261 | if (err < 0) { |
c24ff998 | 2262 | fprintf(trace->output, "Couldn't run the workload!\n"); |
03ad9747 | 2263 | goto out_delete_evlist; |
f15eb531 NK |
2264 | } |
2265 | } | |
2266 | ||
514f1c67 | 2267 | err = perf_evlist__open(evlist); |
a8f23d8f ACM |
2268 | if (err < 0) |
2269 | goto out_error_open; | |
514f1c67 | 2270 | |
ba504235 WN |
2271 | err = bpf__apply_obj_config(); |
2272 | if (err) { | |
2273 | char errbuf[BUFSIZ]; | |
2274 | ||
2275 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
2276 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
2277 | errbuf); | |
2278 | goto out_error_open; | |
2279 | } | |
2280 | ||
241b057c ACM |
2281 | /* |
2282 | * Better not use !target__has_task() here because we need to cover the | |
2283 | * case where no threads were specified in the command line, but a | |
2284 | * workload was, and in that case we will fill in the thread_map when | |
2285 | * we fork the workload in perf_evlist__prepare_workload. | |
2286 | */ | |
f078c385 ACM |
2287 | if (trace->filter_pids.nr > 0) |
2288 | err = perf_evlist__set_filter_pids(evlist, trace->filter_pids.nr, trace->filter_pids.entries); | |
e13798c7 | 2289 | else if (thread_map__pid(evlist->threads, 0) == -1) |
f078c385 ACM |
2290 | err = perf_evlist__set_filter_pid(evlist, getpid()); |
2291 | ||
94ad89bc ACM |
2292 | if (err < 0) |
2293 | goto out_error_mem; | |
2294 | ||
19867b61 ACM |
2295 | if (trace->ev_qualifier_ids.nr > 0) { |
2296 | err = trace__set_ev_qualifier_filter(trace); | |
2297 | if (err < 0) | |
2298 | goto out_errno; | |
19867b61 | 2299 | |
2e5e5f87 ACM |
2300 | pr_debug("event qualifier tracepoint filter: %s\n", |
2301 | trace->syscalls.events.sys_exit->filter); | |
2302 | } | |
19867b61 | 2303 | |
94ad89bc ACM |
2304 | err = perf_evlist__apply_filters(evlist, &evsel); |
2305 | if (err < 0) | |
2306 | goto out_error_apply_filters; | |
241b057c | 2307 | |
f885037e | 2308 | err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false); |
e09b18d4 ACM |
2309 | if (err < 0) |
2310 | goto out_error_mmap; | |
514f1c67 | 2311 | |
e36b7821 | 2312 | if (!target__none(&trace->opts.target) && !trace->opts.initial_delay) |
cb24d01d ACM |
2313 | perf_evlist__enable(evlist); |
2314 | ||
f15eb531 NK |
2315 | if (forks) |
2316 | perf_evlist__start_workload(evlist); | |
2317 | ||
e36b7821 AB |
2318 | if (trace->opts.initial_delay) { |
2319 | usleep(trace->opts.initial_delay * 1000); | |
2320 | perf_evlist__enable(evlist); | |
2321 | } | |
2322 | ||
e13798c7 | 2323 | trace->multiple_threads = thread_map__pid(evlist->threads, 0) == -1 || |
42052bea ACM |
2324 | evlist->threads->nr > 1 || |
2325 | perf_evlist__first(evlist)->attr.inherit; | |
514f1c67 | 2326 | again: |
efd5745e | 2327 | before = trace->nr_events; |
514f1c67 ACM |
2328 | |
2329 | for (i = 0; i < evlist->nr_mmaps; i++) { | |
2330 | union perf_event *event; | |
2331 | ||
2332 | while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { | |
514f1c67 | 2333 | struct perf_sample sample; |
514f1c67 | 2334 | |
efd5745e | 2335 | ++trace->nr_events; |
514f1c67 | 2336 | |
514f1c67 ACM |
2337 | err = perf_evlist__parse_sample(evlist, event, &sample); |
2338 | if (err) { | |
c24ff998 | 2339 | fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err); |
8e50d384 | 2340 | goto next_event; |
514f1c67 ACM |
2341 | } |
2342 | ||
ddbb1b13 | 2343 | trace__handle_event(trace, event, &sample); |
8e50d384 ZZ |
2344 | next_event: |
2345 | perf_evlist__mmap_consume(evlist, i); | |
20c5f10e | 2346 | |
ba209f85 ACM |
2347 | if (interrupted) |
2348 | goto out_disable; | |
02ac5421 ACM |
2349 | |
2350 | if (done && !draining) { | |
2351 | perf_evlist__disable(evlist); | |
2352 | draining = true; | |
2353 | } | |
514f1c67 ACM |
2354 | } |
2355 | } | |
2356 | ||
efd5745e | 2357 | if (trace->nr_events == before) { |
ba209f85 | 2358 | int timeout = done ? 100 : -1; |
f15eb531 | 2359 | |
46fb3c21 ACM |
2360 | if (!draining && perf_evlist__poll(evlist, timeout) > 0) { |
2361 | if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0) | |
2362 | draining = true; | |
2363 | ||
ba209f85 | 2364 | goto again; |
46fb3c21 | 2365 | } |
ba209f85 ACM |
2366 | } else { |
2367 | goto again; | |
f15eb531 NK |
2368 | } |
2369 | ||
ba209f85 | 2370 | out_disable: |
f3b623b8 ACM |
2371 | thread__zput(trace->current); |
2372 | ||
ba209f85 | 2373 | perf_evlist__disable(evlist); |
514f1c67 | 2374 | |
c522739d ACM |
2375 | if (!err) { |
2376 | if (trace->summary) | |
2377 | trace__fprintf_thread_summary(trace, trace->output); | |
2378 | ||
2379 | if (trace->show_tool_stats) { | |
2380 | fprintf(trace->output, "Stats:\n " | |
2381 | " vfs_getname : %" PRIu64 "\n" | |
2382 | " proc_getname: %" PRIu64 "\n", | |
2383 | trace->stats.vfs_getname, | |
2384 | trace->stats.proc_getname); | |
2385 | } | |
2386 | } | |
bf2575c1 | 2387 | |
514f1c67 ACM |
2388 | out_delete_evlist: |
2389 | perf_evlist__delete(evlist); | |
14a052df | 2390 | trace->evlist = NULL; |
75b757ca | 2391 | trace->live = false; |
514f1c67 | 2392 | return err; |
6ef068cb ACM |
2393 | { |
2394 | char errbuf[BUFSIZ]; | |
a8f23d8f | 2395 | |
2cc990ba | 2396 | out_error_sched_stat_runtime: |
988bdb31 | 2397 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); |
2cc990ba ACM |
2398 | goto out_error; |
2399 | ||
801c67b0 | 2400 | out_error_raw_syscalls: |
988bdb31 | 2401 | tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); |
a8f23d8f ACM |
2402 | goto out_error; |
2403 | ||
e09b18d4 ACM |
2404 | out_error_mmap: |
2405 | perf_evlist__strerror_mmap(evlist, errno, errbuf, sizeof(errbuf)); | |
2406 | goto out_error; | |
2407 | ||
a8f23d8f ACM |
2408 | out_error_open: |
2409 | perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf)); | |
2410 | ||
2411 | out_error: | |
6ef068cb | 2412 | fprintf(trace->output, "%s\n", errbuf); |
87f91868 | 2413 | goto out_delete_evlist; |
94ad89bc ACM |
2414 | |
2415 | out_error_apply_filters: | |
2416 | fprintf(trace->output, | |
2417 | "Failed to set filter \"%s\" on event %s with %d (%s)\n", | |
2418 | evsel->filter, perf_evsel__name(evsel), errno, | |
c8b5f2c9 | 2419 | str_error_r(errno, errbuf, sizeof(errbuf))); |
94ad89bc | 2420 | goto out_delete_evlist; |
514f1c67 | 2421 | } |
5ed08dae ACM |
2422 | out_error_mem: |
2423 | fprintf(trace->output, "Not enough memory to run!\n"); | |
2424 | goto out_delete_evlist; | |
19867b61 ACM |
2425 | |
2426 | out_errno: | |
2427 | fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno)); | |
2428 | goto out_delete_evlist; | |
a8f23d8f | 2429 | } |
514f1c67 | 2430 | |
6810fc91 DA |
2431 | static int trace__replay(struct trace *trace) |
2432 | { | |
2433 | const struct perf_evsel_str_handler handlers[] = { | |
c522739d | 2434 | { "probe:vfs_getname", trace__vfs_getname, }, |
6810fc91 | 2435 | }; |
f5fc1412 JO |
2436 | struct perf_data_file file = { |
2437 | .path = input_name, | |
2438 | .mode = PERF_DATA_MODE_READ, | |
e366a6d8 | 2439 | .force = trace->force, |
f5fc1412 | 2440 | }; |
6810fc91 | 2441 | struct perf_session *session; |
003824e8 | 2442 | struct perf_evsel *evsel; |
6810fc91 DA |
2443 | int err = -1; |
2444 | ||
2445 | trace->tool.sample = trace__process_sample; | |
2446 | trace->tool.mmap = perf_event__process_mmap; | |
384c671e | 2447 | trace->tool.mmap2 = perf_event__process_mmap2; |
6810fc91 DA |
2448 | trace->tool.comm = perf_event__process_comm; |
2449 | trace->tool.exit = perf_event__process_exit; | |
2450 | trace->tool.fork = perf_event__process_fork; | |
2451 | trace->tool.attr = perf_event__process_attr; | |
f3b3614a | 2452 | trace->tool.tracing_data = perf_event__process_tracing_data; |
6810fc91 | 2453 | trace->tool.build_id = perf_event__process_build_id; |
f3b3614a | 2454 | trace->tool.namespaces = perf_event__process_namespaces; |
6810fc91 | 2455 | |
0a8cb85c | 2456 | trace->tool.ordered_events = true; |
6810fc91 DA |
2457 | trace->tool.ordering_requires_timestamps = true; |
2458 | ||
2459 | /* add tid to output */ | |
2460 | trace->multiple_threads = true; | |
2461 | ||
f5fc1412 | 2462 | session = perf_session__new(&file, false, &trace->tool); |
6810fc91 | 2463 | if (session == NULL) |
52e02834 | 2464 | return -1; |
6810fc91 | 2465 | |
aa07df6e DA |
2466 | if (trace->opts.target.pid) |
2467 | symbol_conf.pid_list_str = strdup(trace->opts.target.pid); | |
2468 | ||
2469 | if (trace->opts.target.tid) | |
2470 | symbol_conf.tid_list_str = strdup(trace->opts.target.tid); | |
2471 | ||
0a7e6d1b | 2472 | if (symbol__init(&session->header.env) < 0) |
cb2ffae2 NK |
2473 | goto out; |
2474 | ||
8fb598e5 DA |
2475 | trace->host = &session->machines.host; |
2476 | ||
6810fc91 DA |
2477 | err = perf_session__set_tracepoints_handlers(session, handlers); |
2478 | if (err) | |
2479 | goto out; | |
2480 | ||
003824e8 NK |
2481 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, |
2482 | "raw_syscalls:sys_enter"); | |
9aca7f17 DA |
2483 | /* older kernels have syscalls tp versus raw_syscalls */ |
2484 | if (evsel == NULL) | |
2485 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2486 | "syscalls:sys_enter"); | |
003824e8 | 2487 | |
e281a960 SF |
2488 | if (evsel && |
2489 | (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 || | |
2490 | perf_evsel__init_sc_tp_ptr_field(evsel, args))) { | |
003824e8 NK |
2491 | pr_err("Error during initialize raw_syscalls:sys_enter event\n"); |
2492 | goto out; | |
2493 | } | |
2494 | ||
2495 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2496 | "raw_syscalls:sys_exit"); | |
9aca7f17 DA |
2497 | if (evsel == NULL) |
2498 | evsel = perf_evlist__find_tracepoint_by_name(session->evlist, | |
2499 | "syscalls:sys_exit"); | |
e281a960 SF |
2500 | if (evsel && |
2501 | (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 || | |
2502 | perf_evsel__init_sc_tp_uint_field(evsel, ret))) { | |
003824e8 | 2503 | pr_err("Error during initialize raw_syscalls:sys_exit event\n"); |
6810fc91 DA |
2504 | goto out; |
2505 | } | |
2506 | ||
e5cadb93 | 2507 | evlist__for_each_entry(session->evlist, evsel) { |
1e28fe0a SF |
2508 | if (evsel->attr.type == PERF_TYPE_SOFTWARE && |
2509 | (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || | |
2510 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || | |
2511 | evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) | |
2512 | evsel->handler = trace__pgfault; | |
2513 | } | |
2514 | ||
6810fc91 DA |
2515 | setup_pager(); |
2516 | ||
b7b61cbe | 2517 | err = perf_session__process_events(session); |
6810fc91 DA |
2518 | if (err) |
2519 | pr_err("Failed to process events, error %d", err); | |
2520 | ||
bf2575c1 DA |
2521 | else if (trace->summary) |
2522 | trace__fprintf_thread_summary(trace, trace->output); | |
2523 | ||
6810fc91 DA |
2524 | out: |
2525 | perf_session__delete(session); | |
2526 | ||
2527 | return err; | |
2528 | } | |
2529 | ||
1302d88e ACM |
2530 | static size_t trace__fprintf_threads_header(FILE *fp) |
2531 | { | |
2532 | size_t printed; | |
2533 | ||
99ff7150 | 2534 | printed = fprintf(fp, "\n Summary of events:\n\n"); |
bf2575c1 DA |
2535 | |
2536 | return printed; | |
2537 | } | |
2538 | ||
b535d523 ACM |
2539 | DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs, |
2540 | struct stats *stats; | |
2541 | double msecs; | |
2542 | int syscall; | |
2543 | ) | |
2544 | { | |
2545 | struct int_node *source = rb_entry(nd, struct int_node, rb_node); | |
2546 | struct stats *stats = source->priv; | |
2547 | ||
2548 | entry->syscall = source->i; | |
2549 | entry->stats = stats; | |
2550 | entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0; | |
2551 | } | |
2552 | ||
bf2575c1 DA |
2553 | static size_t thread__dump_stats(struct thread_trace *ttrace, |
2554 | struct trace *trace, FILE *fp) | |
2555 | { | |
bf2575c1 DA |
2556 | size_t printed = 0; |
2557 | struct syscall *sc; | |
b535d523 ACM |
2558 | struct rb_node *nd; |
2559 | DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats); | |
bf2575c1 | 2560 | |
b535d523 | 2561 | if (syscall_stats == NULL) |
bf2575c1 DA |
2562 | return 0; |
2563 | ||
2564 | printed += fprintf(fp, "\n"); | |
2565 | ||
834fd46d MW |
2566 | printed += fprintf(fp, " syscall calls total min avg max stddev\n"); |
2567 | printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n"); | |
2568 | printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n"); | |
99ff7150 | 2569 | |
98a91837 | 2570 | resort_rb__for_each_entry(nd, syscall_stats) { |
b535d523 | 2571 | struct stats *stats = syscall_stats_entry->stats; |
bf2575c1 DA |
2572 | if (stats) { |
2573 | double min = (double)(stats->min) / NSEC_PER_MSEC; | |
2574 | double max = (double)(stats->max) / NSEC_PER_MSEC; | |
2575 | double avg = avg_stats(stats); | |
2576 | double pct; | |
2577 | u64 n = (u64) stats->n; | |
2578 | ||
2579 | pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0; | |
2580 | avg /= NSEC_PER_MSEC; | |
2581 | ||
b535d523 | 2582 | sc = &trace->syscalls.table[syscall_stats_entry->syscall]; |
99ff7150 | 2583 | printed += fprintf(fp, " %-15s", sc->name); |
834fd46d | 2584 | printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f", |
b535d523 | 2585 | n, syscall_stats_entry->msecs, min, avg); |
27a778b5 | 2586 | printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct); |
bf2575c1 | 2587 | } |
bf2575c1 DA |
2588 | } |
2589 | ||
b535d523 | 2590 | resort_rb__delete(syscall_stats); |
bf2575c1 | 2591 | printed += fprintf(fp, "\n\n"); |
1302d88e ACM |
2592 | |
2593 | return printed; | |
2594 | } | |
2595 | ||
96c14451 | 2596 | static size_t trace__fprintf_thread(FILE *fp, struct thread *thread, struct trace *trace) |
896cbb56 | 2597 | { |
96c14451 | 2598 | size_t printed = 0; |
89dceb22 | 2599 | struct thread_trace *ttrace = thread__priv(thread); |
896cbb56 DA |
2600 | double ratio; |
2601 | ||
2602 | if (ttrace == NULL) | |
2603 | return 0; | |
2604 | ||
2605 | ratio = (double)ttrace->nr_events / trace->nr_events * 100.0; | |
2606 | ||
15e65c69 | 2607 | printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); |
99ff7150 | 2608 | printed += fprintf(fp, "%lu events, ", ttrace->nr_events); |
15e65c69 | 2609 | printed += fprintf(fp, "%.1f%%", ratio); |
a2ea67d7 SF |
2610 | if (ttrace->pfmaj) |
2611 | printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); | |
2612 | if (ttrace->pfmin) | |
2613 | printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); | |
03548ebf ACM |
2614 | if (trace->sched) |
2615 | printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); | |
2616 | else if (fputc('\n', fp) != EOF) | |
2617 | ++printed; | |
2618 | ||
bf2575c1 | 2619 | printed += thread__dump_stats(ttrace, trace, fp); |
896cbb56 | 2620 | |
96c14451 ACM |
2621 | return printed; |
2622 | } | |
896cbb56 | 2623 | |
96c14451 ACM |
2624 | static unsigned long thread__nr_events(struct thread_trace *ttrace) |
2625 | { | |
2626 | return ttrace ? ttrace->nr_events : 0; | |
2627 | } | |
2628 | ||
2629 | DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_events(b->thread->priv)), | |
2630 | struct thread *thread; | |
2631 | ) | |
2632 | { | |
2633 | entry->thread = rb_entry(nd, struct thread, rb_node); | |
896cbb56 DA |
2634 | } |
2635 | ||
1302d88e ACM |
2636 | static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp) |
2637 | { | |
96c14451 ACM |
2638 | DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host); |
2639 | size_t printed = trace__fprintf_threads_header(fp); | |
2640 | struct rb_node *nd; | |
1302d88e | 2641 | |
96c14451 ACM |
2642 | if (threads == NULL) { |
2643 | fprintf(fp, "%s", "Error sorting output by nr_events!\n"); | |
2644 | return 0; | |
2645 | } | |
2646 | ||
98a91837 | 2647 | resort_rb__for_each_entry(nd, threads) |
96c14451 | 2648 | printed += trace__fprintf_thread(fp, threads_entry->thread, trace); |
896cbb56 | 2649 | |
96c14451 ACM |
2650 | resort_rb__delete(threads); |
2651 | ||
2652 | return printed; | |
1302d88e ACM |
2653 | } |
2654 | ||
ae9ed035 ACM |
2655 | static int trace__set_duration(const struct option *opt, const char *str, |
2656 | int unset __maybe_unused) | |
2657 | { | |
2658 | struct trace *trace = opt->value; | |
2659 | ||
2660 | trace->duration_filter = atof(str); | |
2661 | return 0; | |
2662 | } | |
2663 | ||
f078c385 ACM |
2664 | static int trace__set_filter_pids(const struct option *opt, const char *str, |
2665 | int unset __maybe_unused) | |
2666 | { | |
2667 | int ret = -1; | |
2668 | size_t i; | |
2669 | struct trace *trace = opt->value; | |
2670 | /* | |
2671 | * FIXME: introduce a intarray class, plain parse csv and create a | |
2672 | * { int nr, int entries[] } struct... | |
2673 | */ | |
2674 | struct intlist *list = intlist__new(str); | |
2675 | ||
2676 | if (list == NULL) | |
2677 | return -1; | |
2678 | ||
2679 | i = trace->filter_pids.nr = intlist__nr_entries(list) + 1; | |
2680 | trace->filter_pids.entries = calloc(i, sizeof(pid_t)); | |
2681 | ||
2682 | if (trace->filter_pids.entries == NULL) | |
2683 | goto out; | |
2684 | ||
2685 | trace->filter_pids.entries[0] = getpid(); | |
2686 | ||
2687 | for (i = 1; i < trace->filter_pids.nr; ++i) | |
2688 | trace->filter_pids.entries[i] = intlist__entry(list, i - 1)->i; | |
2689 | ||
2690 | intlist__delete(list); | |
2691 | ret = 0; | |
2692 | out: | |
2693 | return ret; | |
2694 | } | |
2695 | ||
c24ff998 ACM |
2696 | static int trace__open_output(struct trace *trace, const char *filename) |
2697 | { | |
2698 | struct stat st; | |
2699 | ||
2700 | if (!stat(filename, &st) && st.st_size) { | |
2701 | char oldname[PATH_MAX]; | |
2702 | ||
2703 | scnprintf(oldname, sizeof(oldname), "%s.old", filename); | |
2704 | unlink(oldname); | |
2705 | rename(filename, oldname); | |
2706 | } | |
2707 | ||
2708 | trace->output = fopen(filename, "w"); | |
2709 | ||
2710 | return trace->output == NULL ? -errno : 0; | |
2711 | } | |
2712 | ||
598d02c5 SF |
2713 | static int parse_pagefaults(const struct option *opt, const char *str, |
2714 | int unset __maybe_unused) | |
2715 | { | |
2716 | int *trace_pgfaults = opt->value; | |
2717 | ||
2718 | if (strcmp(str, "all") == 0) | |
2719 | *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; | |
2720 | else if (strcmp(str, "maj") == 0) | |
2721 | *trace_pgfaults |= TRACE_PFMAJ; | |
2722 | else if (strcmp(str, "min") == 0) | |
2723 | *trace_pgfaults |= TRACE_PFMIN; | |
2724 | else | |
2725 | return -1; | |
2726 | ||
2727 | return 0; | |
2728 | } | |
2729 | ||
14a052df ACM |
2730 | static void evlist__set_evsel_handler(struct perf_evlist *evlist, void *handler) |
2731 | { | |
2732 | struct perf_evsel *evsel; | |
2733 | ||
e5cadb93 | 2734 | evlist__for_each_entry(evlist, evsel) |
14a052df ACM |
2735 | evsel->handler = handler; |
2736 | } | |
2737 | ||
017037ff ACM |
2738 | /* |
2739 | * XXX: Hackish, just splitting the combined -e+--event (syscalls | |
2740 | * (raw_syscalls:{sys_{enter,exit}} + events (tracepoints, HW, SW, etc) to use | |
2741 | * existing facilities unchanged (trace->ev_qualifier + parse_options()). | |
2742 | * | |
2743 | * It'd be better to introduce a parse_options() variant that would return a | |
2744 | * list with the terms it didn't match to an event... | |
2745 | */ | |
2746 | static int trace__parse_events_option(const struct option *opt, const char *str, | |
2747 | int unset __maybe_unused) | |
2748 | { | |
2749 | struct trace *trace = (struct trace *)opt->value; | |
2750 | const char *s = str; | |
2751 | char *sep = NULL, *lists[2] = { NULL, NULL, }; | |
2752 | int len = strlen(str), err = -1, list; | |
2753 | char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); | |
2754 | char group_name[PATH_MAX]; | |
2755 | ||
2756 | if (strace_groups_dir == NULL) | |
2757 | return -1; | |
2758 | ||
2759 | if (*s == '!') { | |
2760 | ++s; | |
2761 | trace->not_ev_qualifier = true; | |
2762 | } | |
2763 | ||
2764 | while (1) { | |
2765 | if ((sep = strchr(s, ',')) != NULL) | |
2766 | *sep = '\0'; | |
2767 | ||
2768 | list = 0; | |
2769 | if (syscalltbl__id(trace->sctbl, s) >= 0) { | |
2770 | list = 1; | |
2771 | } else { | |
2772 | path__join(group_name, sizeof(group_name), strace_groups_dir, s); | |
2773 | if (access(group_name, R_OK) == 0) | |
2774 | list = 1; | |
2775 | } | |
2776 | ||
2777 | if (lists[list]) { | |
2778 | sprintf(lists[list] + strlen(lists[list]), ",%s", s); | |
2779 | } else { | |
2780 | lists[list] = malloc(len); | |
2781 | if (lists[list] == NULL) | |
2782 | goto out; | |
2783 | strcpy(lists[list], s); | |
2784 | } | |
2785 | ||
2786 | if (!sep) | |
2787 | break; | |
2788 | ||
2789 | *sep = ','; | |
2790 | s = sep + 1; | |
2791 | } | |
2792 | ||
2793 | if (lists[1] != NULL) { | |
2794 | struct strlist_config slist_config = { | |
2795 | .dirname = strace_groups_dir, | |
2796 | }; | |
2797 | ||
2798 | trace->ev_qualifier = strlist__new(lists[1], &slist_config); | |
2799 | if (trace->ev_qualifier == NULL) { | |
2800 | fputs("Not enough memory to parse event qualifier", trace->output); | |
2801 | goto out; | |
2802 | } | |
2803 | ||
2804 | if (trace__validate_ev_qualifier(trace)) | |
2805 | goto out; | |
2806 | } | |
2807 | ||
2808 | err = 0; | |
2809 | ||
2810 | if (lists[0]) { | |
2811 | struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", | |
2812 | "event selector. use 'perf list' to list available events", | |
2813 | parse_events_option); | |
2814 | err = parse_events_option(&o, lists[0], 0); | |
2815 | } | |
2816 | out: | |
2817 | if (sep) | |
2818 | *sep = ','; | |
2819 | ||
2820 | return err; | |
2821 | } | |
2822 | ||
b0ad8ea6 | 2823 | int cmd_trace(int argc, const char **argv) |
514f1c67 | 2824 | { |
6fdd9cb7 | 2825 | const char *trace_usage[] = { |
f15eb531 NK |
2826 | "perf trace [<options>] [<command>]", |
2827 | "perf trace [<options>] -- <command> [<options>]", | |
5e2485b1 DA |
2828 | "perf trace record [<options>] [<command>]", |
2829 | "perf trace record [<options>] -- <command> [<options>]", | |
514f1c67 ACM |
2830 | NULL |
2831 | }; | |
2832 | struct trace trace = { | |
514f1c67 ACM |
2833 | .syscalls = { |
2834 | . max = -1, | |
2835 | }, | |
2836 | .opts = { | |
2837 | .target = { | |
2838 | .uid = UINT_MAX, | |
2839 | .uses_mmap = true, | |
2840 | }, | |
2841 | .user_freq = UINT_MAX, | |
2842 | .user_interval = ULLONG_MAX, | |
509051ea | 2843 | .no_buffering = true, |
38d5447d | 2844 | .mmap_pages = UINT_MAX, |
9d9cad76 | 2845 | .proc_map_timeout = 500, |
514f1c67 | 2846 | }, |
007d66a0 | 2847 | .output = stderr, |
50c95cbd | 2848 | .show_comm = true, |
e281a960 | 2849 | .trace_syscalls = true, |
44621819 | 2850 | .kernel_syscallchains = false, |
05614993 | 2851 | .max_stack = UINT_MAX, |
514f1c67 | 2852 | }; |
c24ff998 | 2853 | const char *output_name = NULL; |
514f1c67 | 2854 | const struct option trace_options[] = { |
017037ff ACM |
2855 | OPT_CALLBACK('e', "event", &trace, "event", |
2856 | "event/syscall selector. use 'perf list' to list available events", | |
2857 | trace__parse_events_option), | |
50c95cbd ACM |
2858 | OPT_BOOLEAN(0, "comm", &trace.show_comm, |
2859 | "show the thread COMM next to its id"), | |
c522739d | 2860 | OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"), |
017037ff ACM |
2861 | OPT_CALLBACK(0, "expr", &trace, "expr", "list of syscalls/events to trace", |
2862 | trace__parse_events_option), | |
c24ff998 | 2863 | OPT_STRING('o', "output", &output_name, "file", "output file name"), |
6810fc91 | 2864 | OPT_STRING('i', "input", &input_name, "file", "Analyze events in file"), |
514f1c67 ACM |
2865 | OPT_STRING('p', "pid", &trace.opts.target.pid, "pid", |
2866 | "trace events on existing process id"), | |
ac9be8ee | 2867 | OPT_STRING('t', "tid", &trace.opts.target.tid, "tid", |
514f1c67 | 2868 | "trace events on existing thread id"), |
fa0e4ffe ACM |
2869 | OPT_CALLBACK(0, "filter-pids", &trace, "CSV list of pids", |
2870 | "pids to filter (by the kernel)", trace__set_filter_pids), | |
ac9be8ee | 2871 | OPT_BOOLEAN('a', "all-cpus", &trace.opts.target.system_wide, |
514f1c67 | 2872 | "system-wide collection from all CPUs"), |
ac9be8ee | 2873 | OPT_STRING('C', "cpu", &trace.opts.target.cpu_list, "cpu", |
514f1c67 | 2874 | "list of cpus to monitor"), |
6810fc91 | 2875 | OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit, |
514f1c67 | 2876 | "child tasks do not inherit counters"), |
994a1f78 JO |
2877 | OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages", |
2878 | "number of mmap data pages", | |
2879 | perf_evlist__parse_mmap_pages), | |
ac9be8ee | 2880 | OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user", |
514f1c67 | 2881 | "user to profile"), |
ae9ed035 ACM |
2882 | OPT_CALLBACK(0, "duration", &trace, "float", |
2883 | "show only events with duration > N.M ms", | |
2884 | trace__set_duration), | |
1302d88e | 2885 | OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"), |
7c304ee0 | 2886 | OPT_INCR('v', "verbose", &verbose, "be more verbose"), |
4bb09192 DA |
2887 | OPT_BOOLEAN('T', "time", &trace.full_time, |
2888 | "Show full timestamp, not time relative to first start"), | |
fd2eabaf DA |
2889 | OPT_BOOLEAN('s', "summary", &trace.summary_only, |
2890 | "Show only syscall summary with statistics"), | |
2891 | OPT_BOOLEAN('S', "with-summary", &trace.summary, | |
2892 | "Show all syscalls and summary with statistics"), | |
598d02c5 SF |
2893 | OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", |
2894 | "Trace pagefaults", parse_pagefaults, "maj"), | |
e281a960 | 2895 | OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), |
e366a6d8 | 2896 | OPT_BOOLEAN('f', "force", &trace.force, "don't complain, do it"), |
566a0885 MW |
2897 | OPT_CALLBACK(0, "call-graph", &trace.opts, |
2898 | "record_mode[,record_size]", record_callchain_help, | |
2899 | &record_parse_callchain_opt), | |
44621819 ACM |
2900 | OPT_BOOLEAN(0, "kernel-syscall-graph", &trace.kernel_syscallchains, |
2901 | "Show the kernel callchains on the syscall exit path"), | |
5cf9c84e ACM |
2902 | OPT_UINTEGER(0, "min-stack", &trace.min_stack, |
2903 | "Set the minimum stack depth when parsing the callchain, " | |
2904 | "anything below the specified depth will be ignored."), | |
c6d4a494 ACM |
2905 | OPT_UINTEGER(0, "max-stack", &trace.max_stack, |
2906 | "Set the maximum stack depth when parsing the callchain, " | |
2907 | "anything beyond the specified depth will be ignored. " | |
4cb93446 | 2908 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
9d9cad76 KL |
2909 | OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout, |
2910 | "per thread proc mmap processing timeout in ms"), | |
e36b7821 AB |
2911 | OPT_UINTEGER('D', "delay", &trace.opts.initial_delay, |
2912 | "ms to wait before starting measurement after program " | |
2913 | "start"), | |
514f1c67 ACM |
2914 | OPT_END() |
2915 | }; | |
ccd62a89 | 2916 | bool __maybe_unused max_stack_user_set = true; |
f3e459d1 | 2917 | bool mmap_pages_user_set = true; |
6fdd9cb7 | 2918 | const char * const trace_subcommands[] = { "record", NULL }; |
514f1c67 | 2919 | int err; |
32caf0d1 | 2920 | char bf[BUFSIZ]; |
514f1c67 | 2921 | |
4d08cb80 ACM |
2922 | signal(SIGSEGV, sighandler_dump_stack); |
2923 | signal(SIGFPE, sighandler_dump_stack); | |
2924 | ||
14a052df | 2925 | trace.evlist = perf_evlist__new(); |
fd0db102 | 2926 | trace.sctbl = syscalltbl__new(); |
14a052df | 2927 | |
fd0db102 | 2928 | if (trace.evlist == NULL || trace.sctbl == NULL) { |
14a052df | 2929 | pr_err("Not enough memory to run!\n"); |
ff8f695c | 2930 | err = -ENOMEM; |
14a052df ACM |
2931 | goto out; |
2932 | } | |
2933 | ||
6fdd9cb7 YS |
2934 | argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, |
2935 | trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); | |
fd2eabaf | 2936 | |
d7888573 WN |
2937 | err = bpf__setup_stdout(trace.evlist); |
2938 | if (err) { | |
2939 | bpf__strerror_setup_stdout(trace.evlist, err, bf, sizeof(bf)); | |
2940 | pr_err("ERROR: Setup BPF stdout failed: %s\n", bf); | |
2941 | goto out; | |
2942 | } | |
2943 | ||
59247e33 ACM |
2944 | err = -1; |
2945 | ||
598d02c5 SF |
2946 | if (trace.trace_pgfaults) { |
2947 | trace.opts.sample_address = true; | |
2948 | trace.opts.sample_time = true; | |
2949 | } | |
2950 | ||
f3e459d1 ACM |
2951 | if (trace.opts.mmap_pages == UINT_MAX) |
2952 | mmap_pages_user_set = false; | |
2953 | ||
05614993 | 2954 | if (trace.max_stack == UINT_MAX) { |
fe176085 | 2955 | trace.max_stack = input_name ? PERF_MAX_STACK_DEPTH : sysctl_perf_event_max_stack; |
05614993 ACM |
2956 | max_stack_user_set = false; |
2957 | } | |
2958 | ||
2959 | #ifdef HAVE_DWARF_UNWIND_SUPPORT | |
caa36ed7 | 2960 | if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled && trace.trace_syscalls) |
05614993 ACM |
2961 | record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false); |
2962 | #endif | |
2963 | ||
2ddd5c04 | 2964 | if (callchain_param.enabled) { |
f3e459d1 ACM |
2965 | if (!mmap_pages_user_set && geteuid() == 0) |
2966 | trace.opts.mmap_pages = perf_event_mlock_kb_in_pages() * 4; | |
2967 | ||
566a0885 | 2968 | symbol_conf.use_callchain = true; |
f3e459d1 | 2969 | } |
566a0885 | 2970 | |
14a052df ACM |
2971 | if (trace.evlist->nr_entries > 0) |
2972 | evlist__set_evsel_handler(trace.evlist, trace__event_handler); | |
2973 | ||
1e28fe0a SF |
2974 | if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) |
2975 | return trace__record(&trace, argc-1, &argv[1]); | |
2976 | ||
2977 | /* summary_only implies summary option, but don't overwrite summary if set */ | |
2978 | if (trace.summary_only) | |
2979 | trace.summary = trace.summary_only; | |
2980 | ||
726f3234 ACM |
2981 | if (!trace.trace_syscalls && !trace.trace_pgfaults && |
2982 | trace.evlist->nr_entries == 0 /* Was --events used? */) { | |
e281a960 SF |
2983 | pr_err("Please specify something to trace.\n"); |
2984 | return -1; | |
2985 | } | |
2986 | ||
017037ff | 2987 | if (!trace.trace_syscalls && trace.ev_qualifier) { |
59247e33 ACM |
2988 | pr_err("The -e option can't be used with --no-syscalls.\n"); |
2989 | goto out; | |
2990 | } | |
2991 | ||
c24ff998 ACM |
2992 | if (output_name != NULL) { |
2993 | err = trace__open_output(&trace, output_name); | |
2994 | if (err < 0) { | |
2995 | perror("failed to create output file"); | |
2996 | goto out; | |
2997 | } | |
2998 | } | |
2999 | ||
fd0db102 ACM |
3000 | trace.open_id = syscalltbl__id(trace.sctbl, "open"); |
3001 | ||
602ad878 | 3002 | err = target__validate(&trace.opts.target); |
32caf0d1 | 3003 | if (err) { |
602ad878 | 3004 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3005 | fprintf(trace.output, "%s", bf); |
3006 | goto out_close; | |
32caf0d1 NK |
3007 | } |
3008 | ||
602ad878 | 3009 | err = target__parse_uid(&trace.opts.target); |
514f1c67 | 3010 | if (err) { |
602ad878 | 3011 | target__strerror(&trace.opts.target, err, bf, sizeof(bf)); |
c24ff998 ACM |
3012 | fprintf(trace.output, "%s", bf); |
3013 | goto out_close; | |
514f1c67 ACM |
3014 | } |
3015 | ||
602ad878 | 3016 | if (!argc && target__none(&trace.opts.target)) |
ee76120e NK |
3017 | trace.opts.target.system_wide = true; |
3018 | ||
6810fc91 DA |
3019 | if (input_name) |
3020 | err = trace__replay(&trace); | |
3021 | else | |
3022 | err = trace__run(&trace, argc, argv); | |
1302d88e | 3023 | |
c24ff998 ACM |
3024 | out_close: |
3025 | if (output_name != NULL) | |
3026 | fclose(trace.output); | |
3027 | out: | |
1302d88e | 3028 | return err; |
514f1c67 | 3029 | } |