Commit | Line | Data |
---|---|---|
ea4010d1 SR |
1 | /* |
2 | * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; version 2 of the License (not later!) | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | * | |
19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
20 | * | |
21 | * The parts for function graph printing was taken and modified from the | |
22 | * Linux Kernel that were written by Frederic Weisbecker. | |
23 | */ | |
24 | #define _GNU_SOURCE | |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <ctype.h> | |
29 | #include <errno.h> | |
30 | ||
31 | #undef _GNU_SOURCE | |
1ef2ed10 | 32 | #include "../perf.h" |
ea4010d1 SR |
33 | #include "util.h" |
34 | #include "trace-event.h" | |
35 | ||
36 | int header_page_ts_offset; | |
37 | int header_page_ts_size; | |
38 | int header_page_size_offset; | |
39 | int header_page_size_size; | |
e9e94e3b ACM |
40 | int header_page_overwrite_offset; |
41 | int header_page_overwrite_size; | |
ea4010d1 SR |
42 | int header_page_data_offset; |
43 | int header_page_data_size; | |
44 | ||
c0555642 | 45 | bool latency_format; |
cda48461 | 46 | |
ea4010d1 SR |
47 | static char *input_buf; |
48 | static unsigned long long input_buf_ptr; | |
49 | static unsigned long long input_buf_siz; | |
50 | ||
51 | static int cpus; | |
52 | static int long_size; | |
eb9a42ca TZ |
53 | static int is_flag_field; |
54 | static int is_symbolic_field; | |
55 | ||
56 | static struct format_field * | |
57 | find_any_field(struct event *event, const char *name); | |
ea4010d1 SR |
58 | |
59 | static void init_input_buf(char *buf, unsigned long long size) | |
60 | { | |
61 | input_buf = buf; | |
62 | input_buf_siz = size; | |
63 | input_buf_ptr = 0; | |
64 | } | |
65 | ||
66 | struct cmdline { | |
67 | char *comm; | |
68 | int pid; | |
69 | }; | |
70 | ||
71 | static struct cmdline *cmdlines; | |
72 | static int cmdline_count; | |
73 | ||
74 | static int cmdline_cmp(const void *a, const void *b) | |
75 | { | |
76 | const struct cmdline *ca = a; | |
77 | const struct cmdline *cb = b; | |
78 | ||
79 | if (ca->pid < cb->pid) | |
80 | return -1; | |
81 | if (ca->pid > cb->pid) | |
82 | return 1; | |
83 | ||
84 | return 0; | |
85 | } | |
86 | ||
87 | void parse_cmdlines(char *file, int size __unused) | |
88 | { | |
89 | struct cmdline_list { | |
90 | struct cmdline_list *next; | |
91 | char *comm; | |
92 | int pid; | |
93 | } *list = NULL, *item; | |
94 | char *line; | |
95 | char *next = NULL; | |
96 | int i; | |
97 | ||
98 | line = strtok_r(file, "\n", &next); | |
99 | while (line) { | |
100 | item = malloc_or_die(sizeof(*item)); | |
101 | sscanf(line, "%d %as", &item->pid, | |
65014ab3 | 102 | (float *)(void *)&item->comm); /* workaround gcc warning */ |
ea4010d1 SR |
103 | item->next = list; |
104 | list = item; | |
105 | line = strtok_r(NULL, "\n", &next); | |
106 | cmdline_count++; | |
107 | } | |
108 | ||
109 | cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); | |
110 | ||
111 | i = 0; | |
112 | while (list) { | |
113 | cmdlines[i].pid = list->pid; | |
114 | cmdlines[i].comm = list->comm; | |
115 | i++; | |
116 | item = list; | |
117 | list = list->next; | |
118 | free(item); | |
119 | } | |
120 | ||
121 | qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); | |
122 | } | |
123 | ||
124 | static struct func_map { | |
125 | unsigned long long addr; | |
126 | char *func; | |
127 | char *mod; | |
128 | } *func_list; | |
129 | static unsigned int func_count; | |
130 | ||
131 | static int func_cmp(const void *a, const void *b) | |
132 | { | |
133 | const struct func_map *fa = a; | |
134 | const struct func_map *fb = b; | |
135 | ||
136 | if (fa->addr < fb->addr) | |
137 | return -1; | |
138 | if (fa->addr > fb->addr) | |
139 | return 1; | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | void parse_proc_kallsyms(char *file, unsigned int size __unused) | |
145 | { | |
146 | struct func_list { | |
147 | struct func_list *next; | |
148 | unsigned long long addr; | |
149 | char *func; | |
150 | char *mod; | |
151 | } *list = NULL, *item; | |
152 | char *line; | |
153 | char *next = NULL; | |
154 | char *addr_str; | |
155 | char ch; | |
fb7d0b3c | 156 | int ret __used; |
ea4010d1 SR |
157 | int i; |
158 | ||
159 | line = strtok_r(file, "\n", &next); | |
160 | while (line) { | |
161 | item = malloc_or_die(sizeof(*item)); | |
162 | item->mod = NULL; | |
163 | ret = sscanf(line, "%as %c %as\t[%as", | |
65014ab3 | 164 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
ea4010d1 | 165 | &ch, |
65014ab3 IM |
166 | (float *)(void *)&item->func, |
167 | (float *)(void *)&item->mod); | |
ea4010d1 SR |
168 | item->addr = strtoull(addr_str, NULL, 16); |
169 | free(addr_str); | |
170 | ||
171 | /* truncate the extra ']' */ | |
172 | if (item->mod) | |
173 | item->mod[strlen(item->mod) - 1] = 0; | |
174 | ||
175 | ||
176 | item->next = list; | |
177 | list = item; | |
178 | line = strtok_r(NULL, "\n", &next); | |
179 | func_count++; | |
180 | } | |
181 | ||
7691b1ec | 182 | func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1)); |
ea4010d1 SR |
183 | |
184 | i = 0; | |
185 | while (list) { | |
186 | func_list[i].func = list->func; | |
187 | func_list[i].addr = list->addr; | |
188 | func_list[i].mod = list->mod; | |
189 | i++; | |
190 | item = list; | |
191 | list = list->next; | |
192 | free(item); | |
193 | } | |
194 | ||
195 | qsort(func_list, func_count, sizeof(*func_list), func_cmp); | |
196 | ||
197 | /* | |
198 | * Add a special record at the end. | |
199 | */ | |
200 | func_list[func_count].func = NULL; | |
201 | func_list[func_count].addr = 0; | |
202 | func_list[func_count].mod = NULL; | |
203 | } | |
204 | ||
205 | /* | |
206 | * We are searching for a record in between, not an exact | |
207 | * match. | |
208 | */ | |
209 | static int func_bcmp(const void *a, const void *b) | |
210 | { | |
211 | const struct func_map *fa = a; | |
212 | const struct func_map *fb = b; | |
213 | ||
214 | if ((fa->addr == fb->addr) || | |
215 | ||
216 | (fa->addr > fb->addr && | |
217 | fa->addr < (fb+1)->addr)) | |
218 | return 0; | |
219 | ||
220 | if (fa->addr < fb->addr) | |
221 | return -1; | |
222 | ||
223 | return 1; | |
224 | } | |
225 | ||
226 | static struct func_map *find_func(unsigned long long addr) | |
227 | { | |
228 | struct func_map *func; | |
229 | struct func_map key; | |
230 | ||
231 | key.addr = addr; | |
232 | ||
233 | func = bsearch(&key, func_list, func_count, sizeof(*func_list), | |
234 | func_bcmp); | |
235 | ||
236 | return func; | |
237 | } | |
238 | ||
239 | void print_funcs(void) | |
240 | { | |
241 | int i; | |
242 | ||
243 | for (i = 0; i < (int)func_count; i++) { | |
244 | printf("%016llx %s", | |
245 | func_list[i].addr, | |
246 | func_list[i].func); | |
247 | if (func_list[i].mod) | |
248 | printf(" [%s]\n", func_list[i].mod); | |
249 | else | |
250 | printf("\n"); | |
251 | } | |
252 | } | |
253 | ||
254 | static struct printk_map { | |
255 | unsigned long long addr; | |
256 | char *printk; | |
257 | } *printk_list; | |
258 | static unsigned int printk_count; | |
259 | ||
260 | static int printk_cmp(const void *a, const void *b) | |
261 | { | |
262 | const struct func_map *fa = a; | |
263 | const struct func_map *fb = b; | |
264 | ||
265 | if (fa->addr < fb->addr) | |
266 | return -1; | |
267 | if (fa->addr > fb->addr) | |
268 | return 1; | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | static struct printk_map *find_printk(unsigned long long addr) | |
274 | { | |
275 | struct printk_map *printk; | |
276 | struct printk_map key; | |
277 | ||
278 | key.addr = addr; | |
279 | ||
280 | printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), | |
281 | printk_cmp); | |
282 | ||
283 | return printk; | |
284 | } | |
285 | ||
286 | void parse_ftrace_printk(char *file, unsigned int size __unused) | |
287 | { | |
288 | struct printk_list { | |
289 | struct printk_list *next; | |
290 | unsigned long long addr; | |
291 | char *printk; | |
292 | } *list = NULL, *item; | |
293 | char *line; | |
294 | char *next = NULL; | |
295 | char *addr_str; | |
ea4010d1 SR |
296 | int i; |
297 | ||
298 | line = strtok_r(file, "\n", &next); | |
299 | while (line) { | |
4e3b799d SR |
300 | addr_str = strsep(&line, ":"); |
301 | if (!line) { | |
302 | warning("error parsing print strings"); | |
303 | break; | |
304 | } | |
ea4010d1 | 305 | item = malloc_or_die(sizeof(*item)); |
ea4010d1 | 306 | item->addr = strtoull(addr_str, NULL, 16); |
ffa18955 | 307 | /* fmt still has a space, skip it */ |
4e3b799d | 308 | item->printk = strdup(line+1); |
ea4010d1 SR |
309 | item->next = list; |
310 | list = item; | |
311 | line = strtok_r(NULL, "\n", &next); | |
312 | printk_count++; | |
313 | } | |
314 | ||
315 | printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); | |
316 | ||
317 | i = 0; | |
318 | while (list) { | |
319 | printk_list[i].printk = list->printk; | |
320 | printk_list[i].addr = list->addr; | |
321 | i++; | |
322 | item = list; | |
323 | list = list->next; | |
324 | free(item); | |
325 | } | |
326 | ||
327 | qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); | |
328 | } | |
329 | ||
330 | void print_printk(void) | |
331 | { | |
332 | int i; | |
333 | ||
334 | for (i = 0; i < (int)printk_count; i++) { | |
335 | printf("%016llx %s\n", | |
336 | printk_list[i].addr, | |
337 | printk_list[i].printk); | |
338 | } | |
339 | } | |
340 | ||
341 | static struct event *alloc_event(void) | |
342 | { | |
343 | struct event *event; | |
344 | ||
345 | event = malloc_or_die(sizeof(*event)); | |
346 | memset(event, 0, sizeof(*event)); | |
347 | ||
348 | return event; | |
349 | } | |
350 | ||
351 | enum event_type { | |
352 | EVENT_ERROR, | |
353 | EVENT_NONE, | |
354 | EVENT_SPACE, | |
355 | EVENT_NEWLINE, | |
356 | EVENT_OP, | |
357 | EVENT_DELIM, | |
358 | EVENT_ITEM, | |
359 | EVENT_DQUOTE, | |
360 | EVENT_SQUOTE, | |
361 | }; | |
362 | ||
363 | static struct event *event_list; | |
364 | ||
365 | static void add_event(struct event *event) | |
366 | { | |
367 | event->next = event_list; | |
368 | event_list = event; | |
369 | } | |
370 | ||
371 | static int event_item_type(enum event_type type) | |
372 | { | |
373 | switch (type) { | |
374 | case EVENT_ITEM ... EVENT_SQUOTE: | |
375 | return 1; | |
376 | case EVENT_ERROR ... EVENT_DELIM: | |
377 | default: | |
378 | return 0; | |
379 | } | |
380 | } | |
381 | ||
382 | static void free_arg(struct print_arg *arg) | |
383 | { | |
384 | if (!arg) | |
385 | return; | |
386 | ||
387 | switch (arg->type) { | |
388 | case PRINT_ATOM: | |
389 | if (arg->atom.atom) | |
390 | free(arg->atom.atom); | |
391 | break; | |
392 | case PRINT_NULL: | |
393 | case PRINT_FIELD ... PRINT_OP: | |
394 | default: | |
395 | /* todo */ | |
396 | break; | |
397 | } | |
398 | ||
399 | free(arg); | |
400 | } | |
401 | ||
402 | static enum event_type get_type(int ch) | |
403 | { | |
404 | if (ch == '\n') | |
405 | return EVENT_NEWLINE; | |
406 | if (isspace(ch)) | |
407 | return EVENT_SPACE; | |
408 | if (isalnum(ch) || ch == '_') | |
409 | return EVENT_ITEM; | |
410 | if (ch == '\'') | |
411 | return EVENT_SQUOTE; | |
412 | if (ch == '"') | |
413 | return EVENT_DQUOTE; | |
414 | if (!isprint(ch)) | |
415 | return EVENT_NONE; | |
416 | if (ch == '(' || ch == ')' || ch == ',') | |
417 | return EVENT_DELIM; | |
418 | ||
419 | return EVENT_OP; | |
420 | } | |
421 | ||
422 | static int __read_char(void) | |
423 | { | |
424 | if (input_buf_ptr >= input_buf_siz) | |
425 | return -1; | |
426 | ||
427 | return input_buf[input_buf_ptr++]; | |
428 | } | |
429 | ||
430 | static int __peek_char(void) | |
431 | { | |
432 | if (input_buf_ptr >= input_buf_siz) | |
433 | return -1; | |
434 | ||
435 | return input_buf[input_buf_ptr]; | |
436 | } | |
437 | ||
438 | static enum event_type __read_token(char **tok) | |
439 | { | |
440 | char buf[BUFSIZ]; | |
441 | int ch, last_ch, quote_ch, next_ch; | |
442 | int i = 0; | |
443 | int tok_size = 0; | |
444 | enum event_type type; | |
445 | ||
446 | *tok = NULL; | |
447 | ||
448 | ||
449 | ch = __read_char(); | |
450 | if (ch < 0) | |
451 | return EVENT_NONE; | |
452 | ||
453 | type = get_type(ch); | |
454 | if (type == EVENT_NONE) | |
455 | return type; | |
456 | ||
457 | buf[i++] = ch; | |
458 | ||
459 | switch (type) { | |
460 | case EVENT_NEWLINE: | |
461 | case EVENT_DELIM: | |
462 | *tok = malloc_or_die(2); | |
463 | (*tok)[0] = ch; | |
464 | (*tok)[1] = 0; | |
465 | return type; | |
466 | ||
467 | case EVENT_OP: | |
468 | switch (ch) { | |
469 | case '-': | |
470 | next_ch = __peek_char(); | |
471 | if (next_ch == '>') { | |
472 | buf[i++] = __read_char(); | |
473 | break; | |
474 | } | |
475 | /* fall through */ | |
476 | case '+': | |
477 | case '|': | |
478 | case '&': | |
479 | case '>': | |
480 | case '<': | |
481 | last_ch = ch; | |
482 | ch = __peek_char(); | |
483 | if (ch != last_ch) | |
484 | goto test_equal; | |
485 | buf[i++] = __read_char(); | |
486 | switch (last_ch) { | |
487 | case '>': | |
488 | case '<': | |
489 | goto test_equal; | |
490 | default: | |
491 | break; | |
492 | } | |
493 | break; | |
494 | case '!': | |
495 | case '=': | |
496 | goto test_equal; | |
497 | default: /* what should we do instead? */ | |
498 | break; | |
499 | } | |
500 | buf[i] = 0; | |
501 | *tok = strdup(buf); | |
502 | return type; | |
503 | ||
504 | test_equal: | |
505 | ch = __peek_char(); | |
506 | if (ch == '=') | |
507 | buf[i++] = __read_char(); | |
508 | break; | |
509 | ||
510 | case EVENT_DQUOTE: | |
511 | case EVENT_SQUOTE: | |
512 | /* don't keep quotes */ | |
513 | i--; | |
514 | quote_ch = ch; | |
515 | last_ch = 0; | |
516 | do { | |
517 | if (i == (BUFSIZ - 1)) { | |
518 | buf[i] = 0; | |
519 | if (*tok) { | |
520 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
521 | if (!*tok) | |
522 | return EVENT_NONE; | |
523 | strcat(*tok, buf); | |
524 | } else | |
525 | *tok = strdup(buf); | |
526 | ||
527 | if (!*tok) | |
528 | return EVENT_NONE; | |
529 | tok_size += BUFSIZ; | |
530 | i = 0; | |
531 | } | |
532 | last_ch = ch; | |
533 | ch = __read_char(); | |
534 | buf[i++] = ch; | |
91ff2bc1 SR |
535 | /* the '\' '\' will cancel itself */ |
536 | if (ch == '\\' && last_ch == '\\') | |
537 | last_ch = 0; | |
538 | } while (ch != quote_ch || last_ch == '\\'); | |
ea4010d1 SR |
539 | /* remove the last quote */ |
540 | i--; | |
541 | goto out; | |
542 | ||
543 | case EVENT_ERROR ... EVENT_SPACE: | |
544 | case EVENT_ITEM: | |
545 | default: | |
546 | break; | |
547 | } | |
548 | ||
549 | while (get_type(__peek_char()) == type) { | |
550 | if (i == (BUFSIZ - 1)) { | |
551 | buf[i] = 0; | |
552 | if (*tok) { | |
553 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
554 | if (!*tok) | |
555 | return EVENT_NONE; | |
556 | strcat(*tok, buf); | |
557 | } else | |
558 | *tok = strdup(buf); | |
559 | ||
560 | if (!*tok) | |
561 | return EVENT_NONE; | |
562 | tok_size += BUFSIZ; | |
563 | i = 0; | |
564 | } | |
565 | ch = __read_char(); | |
566 | buf[i++] = ch; | |
567 | } | |
568 | ||
569 | out: | |
570 | buf[i] = 0; | |
571 | if (*tok) { | |
572 | *tok = realloc(*tok, tok_size + i); | |
573 | if (!*tok) | |
574 | return EVENT_NONE; | |
575 | strcat(*tok, buf); | |
576 | } else | |
577 | *tok = strdup(buf); | |
578 | if (!*tok) | |
579 | return EVENT_NONE; | |
580 | ||
581 | return type; | |
582 | } | |
583 | ||
584 | static void free_token(char *tok) | |
585 | { | |
586 | if (tok) | |
587 | free(tok); | |
588 | } | |
589 | ||
590 | static enum event_type read_token(char **tok) | |
591 | { | |
592 | enum event_type type; | |
593 | ||
594 | for (;;) { | |
595 | type = __read_token(tok); | |
596 | if (type != EVENT_SPACE) | |
597 | return type; | |
598 | ||
599 | free_token(*tok); | |
600 | } | |
601 | ||
602 | /* not reached */ | |
603 | return EVENT_NONE; | |
604 | } | |
605 | ||
606 | /* no newline */ | |
607 | static enum event_type read_token_item(char **tok) | |
608 | { | |
609 | enum event_type type; | |
610 | ||
611 | for (;;) { | |
612 | type = __read_token(tok); | |
613 | if (type != EVENT_SPACE && type != EVENT_NEWLINE) | |
614 | return type; | |
615 | ||
616 | free_token(*tok); | |
617 | } | |
618 | ||
619 | /* not reached */ | |
620 | return EVENT_NONE; | |
621 | } | |
622 | ||
623 | static int test_type(enum event_type type, enum event_type expect) | |
624 | { | |
625 | if (type != expect) { | |
07a4bddd | 626 | warning("Error: expected type %d but read %d", |
ea4010d1 SR |
627 | expect, type); |
628 | return -1; | |
629 | } | |
630 | return 0; | |
631 | } | |
632 | ||
e9e94e3b ACM |
633 | static int __test_type_token(enum event_type type, char *token, |
634 | enum event_type expect, const char *expect_tok, | |
635 | bool warn) | |
ea4010d1 SR |
636 | { |
637 | if (type != expect) { | |
e9e94e3b ACM |
638 | if (warn) |
639 | warning("Error: expected type %d but read %d", | |
640 | expect, type); | |
ea4010d1 SR |
641 | return -1; |
642 | } | |
643 | ||
644 | if (strcmp(token, expect_tok) != 0) { | |
e9e94e3b ACM |
645 | if (warn) |
646 | warning("Error: expected '%s' but read '%s'", | |
647 | expect_tok, token); | |
ea4010d1 SR |
648 | return -1; |
649 | } | |
650 | return 0; | |
651 | } | |
652 | ||
e9e94e3b ACM |
653 | static int test_type_token(enum event_type type, char *token, |
654 | enum event_type expect, const char *expect_tok) | |
655 | { | |
656 | return __test_type_token(type, token, expect, expect_tok, true); | |
657 | } | |
658 | ||
ea4010d1 SR |
659 | static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) |
660 | { | |
661 | enum event_type type; | |
662 | ||
663 | if (newline_ok) | |
664 | type = read_token(tok); | |
665 | else | |
666 | type = read_token_item(tok); | |
667 | return test_type(type, expect); | |
668 | } | |
669 | ||
670 | static int read_expect_type(enum event_type expect, char **tok) | |
671 | { | |
672 | return __read_expect_type(expect, tok, 1); | |
673 | } | |
674 | ||
e9e94e3b ACM |
675 | static int __read_expected(enum event_type expect, const char *str, |
676 | int newline_ok, bool warn) | |
ea4010d1 SR |
677 | { |
678 | enum event_type type; | |
679 | char *token; | |
680 | int ret; | |
681 | ||
682 | if (newline_ok) | |
683 | type = read_token(&token); | |
684 | else | |
685 | type = read_token_item(&token); | |
686 | ||
e9e94e3b | 687 | ret = __test_type_token(type, token, expect, str, warn); |
ea4010d1 SR |
688 | |
689 | free_token(token); | |
690 | ||
07a4bddd | 691 | return ret; |
ea4010d1 SR |
692 | } |
693 | ||
cbef79a8 | 694 | static int read_expected(enum event_type expect, const char *str) |
ea4010d1 | 695 | { |
e9e94e3b | 696 | return __read_expected(expect, str, 1, true); |
ea4010d1 SR |
697 | } |
698 | ||
cbef79a8 | 699 | static int read_expected_item(enum event_type expect, const char *str) |
ea4010d1 | 700 | { |
e9e94e3b | 701 | return __read_expected(expect, str, 0, true); |
ea4010d1 SR |
702 | } |
703 | ||
704 | static char *event_read_name(void) | |
705 | { | |
706 | char *token; | |
707 | ||
c4dc775f | 708 | if (read_expected(EVENT_ITEM, "name") < 0) |
ea4010d1 SR |
709 | return NULL; |
710 | ||
c4dc775f | 711 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
712 | return NULL; |
713 | ||
714 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
715 | goto fail; | |
716 | ||
717 | return token; | |
718 | ||
719 | fail: | |
720 | free_token(token); | |
721 | return NULL; | |
722 | } | |
723 | ||
724 | static int event_read_id(void) | |
725 | { | |
726 | char *token; | |
727 | int id; | |
728 | ||
c4dc775f | 729 | if (read_expected_item(EVENT_ITEM, "ID") < 0) |
ea4010d1 SR |
730 | return -1; |
731 | ||
c4dc775f | 732 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
733 | return -1; |
734 | ||
735 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
736 | goto fail; | |
737 | ||
738 | id = strtoul(token, NULL, 0); | |
739 | free_token(token); | |
740 | return id; | |
741 | ||
742 | fail: | |
743 | free_token(token); | |
744 | return -1; | |
745 | } | |
746 | ||
064739bc TZ |
747 | static int field_is_string(struct format_field *field) |
748 | { | |
749 | if ((field->flags & FIELD_IS_ARRAY) && | |
750 | (!strstr(field->type, "char") || !strstr(field->type, "u8") || | |
751 | !strstr(field->type, "s8"))) | |
752 | return 1; | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
757 | static int field_is_dynamic(struct format_field *field) | |
758 | { | |
a1e2f60e | 759 | if (!strncmp(field->type, "__data_loc", 10)) |
064739bc TZ |
760 | return 1; |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
ea4010d1 SR |
765 | static int event_read_fields(struct event *event, struct format_field **fields) |
766 | { | |
767 | struct format_field *field = NULL; | |
768 | enum event_type type; | |
769 | char *token; | |
770 | char *last_token; | |
771 | int count = 0; | |
772 | ||
773 | do { | |
774 | type = read_token(&token); | |
775 | if (type == EVENT_NEWLINE) { | |
776 | free_token(token); | |
777 | return count; | |
778 | } | |
779 | ||
780 | count++; | |
781 | ||
c4dc775f | 782 | if (test_type_token(type, token, EVENT_ITEM, "field")) |
ea4010d1 SR |
783 | goto fail; |
784 | free_token(token); | |
785 | ||
786 | type = read_token(&token); | |
787 | /* | |
788 | * The ftrace fields may still use the "special" name. | |
789 | * Just ignore it. | |
790 | */ | |
791 | if (event->flags & EVENT_FL_ISFTRACE && | |
792 | type == EVENT_ITEM && strcmp(token, "special") == 0) { | |
793 | free_token(token); | |
794 | type = read_token(&token); | |
795 | } | |
796 | ||
c4dc775f | 797 | if (test_type_token(type, token, EVENT_OP, ":") < 0) |
ea4010d1 SR |
798 | return -1; |
799 | ||
800 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
801 | goto fail; | |
802 | ||
803 | last_token = token; | |
804 | ||
805 | field = malloc_or_die(sizeof(*field)); | |
806 | memset(field, 0, sizeof(*field)); | |
807 | ||
808 | /* read the rest of the type */ | |
809 | for (;;) { | |
810 | type = read_token(&token); | |
811 | if (type == EVENT_ITEM || | |
812 | (type == EVENT_OP && strcmp(token, "*") == 0) || | |
813 | /* | |
814 | * Some of the ftrace fields are broken and have | |
815 | * an illegal "." in them. | |
816 | */ | |
817 | (event->flags & EVENT_FL_ISFTRACE && | |
818 | type == EVENT_OP && strcmp(token, ".") == 0)) { | |
819 | ||
820 | if (strcmp(token, "*") == 0) | |
821 | field->flags |= FIELD_IS_POINTER; | |
822 | ||
823 | if (field->type) { | |
824 | field->type = realloc(field->type, | |
825 | strlen(field->type) + | |
826 | strlen(last_token) + 2); | |
827 | strcat(field->type, " "); | |
828 | strcat(field->type, last_token); | |
829 | } else | |
830 | field->type = last_token; | |
831 | last_token = token; | |
832 | continue; | |
833 | } | |
834 | ||
835 | break; | |
836 | } | |
837 | ||
838 | if (!field->type) { | |
839 | die("no type found"); | |
840 | goto fail; | |
841 | } | |
842 | field->name = last_token; | |
843 | ||
844 | if (test_type(type, EVENT_OP)) | |
845 | goto fail; | |
846 | ||
847 | if (strcmp(token, "[") == 0) { | |
848 | enum event_type last_type = type; | |
849 | char *brackets = token; | |
850 | int len; | |
851 | ||
852 | field->flags |= FIELD_IS_ARRAY; | |
853 | ||
854 | type = read_token(&token); | |
855 | while (strcmp(token, "]") != 0) { | |
856 | if (last_type == EVENT_ITEM && | |
857 | type == EVENT_ITEM) | |
858 | len = 2; | |
859 | else | |
860 | len = 1; | |
861 | last_type = type; | |
862 | ||
863 | brackets = realloc(brackets, | |
864 | strlen(brackets) + | |
865 | strlen(token) + len); | |
866 | if (len == 2) | |
867 | strcat(brackets, " "); | |
868 | strcat(brackets, token); | |
869 | free_token(token); | |
870 | type = read_token(&token); | |
871 | if (type == EVENT_NONE) { | |
872 | die("failed to find token"); | |
873 | goto fail; | |
874 | } | |
875 | } | |
876 | ||
877 | free_token(token); | |
878 | ||
879 | brackets = realloc(brackets, strlen(brackets) + 2); | |
880 | strcat(brackets, "]"); | |
881 | ||
882 | /* add brackets to type */ | |
883 | ||
884 | type = read_token(&token); | |
885 | /* | |
886 | * If the next token is not an OP, then it is of | |
887 | * the format: type [] item; | |
888 | */ | |
889 | if (type == EVENT_ITEM) { | |
890 | field->type = realloc(field->type, | |
891 | strlen(field->type) + | |
892 | strlen(field->name) + | |
893 | strlen(brackets) + 2); | |
894 | strcat(field->type, " "); | |
895 | strcat(field->type, field->name); | |
896 | free_token(field->name); | |
897 | strcat(field->type, brackets); | |
898 | field->name = token; | |
899 | type = read_token(&token); | |
900 | } else { | |
901 | field->type = realloc(field->type, | |
902 | strlen(field->type) + | |
903 | strlen(brackets) + 1); | |
904 | strcat(field->type, brackets); | |
905 | } | |
906 | free(brackets); | |
907 | } | |
908 | ||
064739bc TZ |
909 | if (field_is_string(field)) { |
910 | field->flags |= FIELD_IS_STRING; | |
911 | if (field_is_dynamic(field)) | |
912 | field->flags |= FIELD_IS_DYNAMIC; | |
913 | } | |
914 | ||
c4dc775f | 915 | if (test_type_token(type, token, EVENT_OP, ";")) |
ea4010d1 SR |
916 | goto fail; |
917 | free_token(token); | |
918 | ||
c4dc775f | 919 | if (read_expected(EVENT_ITEM, "offset") < 0) |
ea4010d1 SR |
920 | goto fail_expect; |
921 | ||
c4dc775f | 922 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
923 | goto fail_expect; |
924 | ||
925 | if (read_expect_type(EVENT_ITEM, &token)) | |
926 | goto fail; | |
927 | field->offset = strtoul(token, NULL, 0); | |
928 | free_token(token); | |
929 | ||
c4dc775f | 930 | if (read_expected(EVENT_OP, ";") < 0) |
ea4010d1 SR |
931 | goto fail_expect; |
932 | ||
c4dc775f | 933 | if (read_expected(EVENT_ITEM, "size") < 0) |
ea4010d1 SR |
934 | goto fail_expect; |
935 | ||
c4dc775f | 936 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
937 | goto fail_expect; |
938 | ||
939 | if (read_expect_type(EVENT_ITEM, &token)) | |
940 | goto fail; | |
941 | field->size = strtoul(token, NULL, 0); | |
942 | free_token(token); | |
943 | ||
c4dc775f | 944 | if (read_expected(EVENT_OP, ";") < 0) |
26a50744 TZ |
945 | goto fail_expect; |
946 | ||
13999e59 SR |
947 | type = read_token(&token); |
948 | if (type != EVENT_NEWLINE) { | |
949 | /* newer versions of the kernel have a "signed" type */ | |
c4dc775f | 950 | if (test_type_token(type, token, EVENT_ITEM, "signed")) |
13999e59 | 951 | goto fail; |
26a50744 | 952 | |
13999e59 | 953 | free_token(token); |
26a50744 | 954 | |
c4dc775f | 955 | if (read_expected(EVENT_OP, ":") < 0) |
13999e59 | 956 | goto fail_expect; |
26a50744 | 957 | |
13999e59 SR |
958 | if (read_expect_type(EVENT_ITEM, &token)) |
959 | goto fail; | |
960 | ||
0d0bea5e TZ |
961 | if (strtoul(token, NULL, 0)) |
962 | field->flags |= FIELD_IS_SIGNED; | |
13999e59 SR |
963 | |
964 | free_token(token); | |
c4dc775f | 965 | if (read_expected(EVENT_OP, ";") < 0) |
13999e59 SR |
966 | goto fail_expect; |
967 | ||
968 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
969 | goto fail; | |
970 | } | |
ea4010d1 | 971 | |
ea4010d1 SR |
972 | free_token(token); |
973 | ||
974 | *fields = field; | |
975 | fields = &field->next; | |
976 | ||
977 | } while (1); | |
978 | ||
979 | return 0; | |
980 | ||
981 | fail: | |
982 | free_token(token); | |
983 | fail_expect: | |
984 | if (field) | |
985 | free(field); | |
986 | return -1; | |
987 | } | |
988 | ||
989 | static int event_read_format(struct event *event) | |
990 | { | |
991 | char *token; | |
992 | int ret; | |
993 | ||
c4dc775f | 994 | if (read_expected_item(EVENT_ITEM, "format") < 0) |
ea4010d1 SR |
995 | return -1; |
996 | ||
c4dc775f | 997 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
998 | return -1; |
999 | ||
1000 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
1001 | goto fail; | |
1002 | free_token(token); | |
1003 | ||
1004 | ret = event_read_fields(event, &event->format.common_fields); | |
1005 | if (ret < 0) | |
1006 | return ret; | |
1007 | event->format.nr_common = ret; | |
1008 | ||
1009 | ret = event_read_fields(event, &event->format.fields); | |
1010 | if (ret < 0) | |
1011 | return ret; | |
1012 | event->format.nr_fields = ret; | |
1013 | ||
1014 | return 0; | |
1015 | ||
1016 | fail: | |
1017 | free_token(token); | |
1018 | return -1; | |
1019 | } | |
1020 | ||
1021 | enum event_type | |
1022 | process_arg_token(struct event *event, struct print_arg *arg, | |
1023 | char **tok, enum event_type type); | |
1024 | ||
1025 | static enum event_type | |
1026 | process_arg(struct event *event, struct print_arg *arg, char **tok) | |
1027 | { | |
1028 | enum event_type type; | |
1029 | char *token; | |
1030 | ||
1031 | type = read_token(&token); | |
1032 | *tok = token; | |
1033 | ||
1034 | return process_arg_token(event, arg, tok, type); | |
1035 | } | |
1036 | ||
1037 | static enum event_type | |
1038 | process_cond(struct event *event, struct print_arg *top, char **tok) | |
1039 | { | |
1040 | struct print_arg *arg, *left, *right; | |
1041 | enum event_type type; | |
1042 | char *token = NULL; | |
1043 | ||
1044 | arg = malloc_or_die(sizeof(*arg)); | |
1045 | memset(arg, 0, sizeof(*arg)); | |
1046 | ||
1047 | left = malloc_or_die(sizeof(*left)); | |
1048 | ||
1049 | right = malloc_or_die(sizeof(*right)); | |
1050 | ||
1051 | arg->type = PRINT_OP; | |
1052 | arg->op.left = left; | |
1053 | arg->op.right = right; | |
1054 | ||
1055 | *tok = NULL; | |
1056 | type = process_arg(event, left, &token); | |
c4dc775f | 1057 | if (test_type_token(type, token, EVENT_OP, ":")) |
ea4010d1 SR |
1058 | goto out_free; |
1059 | ||
1060 | arg->op.op = token; | |
1061 | ||
1062 | type = process_arg(event, right, &token); | |
1063 | ||
1064 | top->op.right = arg; | |
1065 | ||
1066 | *tok = token; | |
1067 | return type; | |
1068 | ||
1069 | out_free: | |
1070 | free_token(*tok); | |
1071 | free(right); | |
1072 | free(left); | |
1073 | free_arg(arg); | |
1074 | return EVENT_ERROR; | |
1075 | } | |
1076 | ||
0959b8d6 SR |
1077 | static enum event_type |
1078 | process_array(struct event *event, struct print_arg *top, char **tok) | |
1079 | { | |
1080 | struct print_arg *arg; | |
1081 | enum event_type type; | |
1082 | char *token = NULL; | |
1083 | ||
1084 | arg = malloc_or_die(sizeof(*arg)); | |
1085 | memset(arg, 0, sizeof(*arg)); | |
1086 | ||
1087 | *tok = NULL; | |
1088 | type = process_arg(event, arg, &token); | |
c4dc775f | 1089 | if (test_type_token(type, token, EVENT_OP, "]")) |
0959b8d6 SR |
1090 | goto out_free; |
1091 | ||
1092 | top->op.right = arg; | |
1093 | ||
1094 | free_token(token); | |
1095 | type = read_token_item(&token); | |
1096 | *tok = token; | |
1097 | ||
1098 | return type; | |
1099 | ||
1100 | out_free: | |
1101 | free_token(*tok); | |
1102 | free_arg(arg); | |
1103 | return EVENT_ERROR; | |
1104 | } | |
1105 | ||
ea4010d1 SR |
1106 | static int get_op_prio(char *op) |
1107 | { | |
1108 | if (!op[1]) { | |
1109 | switch (op[0]) { | |
1110 | case '*': | |
1111 | case '/': | |
1112 | case '%': | |
1113 | return 6; | |
1114 | case '+': | |
1115 | case '-': | |
1116 | return 7; | |
1117 | /* '>>' and '<<' are 8 */ | |
1118 | case '<': | |
1119 | case '>': | |
1120 | return 9; | |
1121 | /* '==' and '!=' are 10 */ | |
1122 | case '&': | |
1123 | return 11; | |
1124 | case '^': | |
1125 | return 12; | |
1126 | case '|': | |
1127 | return 13; | |
1128 | case '?': | |
1129 | return 16; | |
1130 | default: | |
1131 | die("unknown op '%c'", op[0]); | |
1132 | return -1; | |
1133 | } | |
1134 | } else { | |
1135 | if (strcmp(op, "++") == 0 || | |
1136 | strcmp(op, "--") == 0) { | |
1137 | return 3; | |
1138 | } else if (strcmp(op, ">>") == 0 || | |
1139 | strcmp(op, "<<") == 0) { | |
1140 | return 8; | |
1141 | } else if (strcmp(op, ">=") == 0 || | |
1142 | strcmp(op, "<=") == 0) { | |
1143 | return 9; | |
1144 | } else if (strcmp(op, "==") == 0 || | |
1145 | strcmp(op, "!=") == 0) { | |
1146 | return 10; | |
1147 | } else if (strcmp(op, "&&") == 0) { | |
1148 | return 14; | |
1149 | } else if (strcmp(op, "||") == 0) { | |
1150 | return 15; | |
1151 | } else { | |
1152 | die("unknown op '%s'", op); | |
1153 | return -1; | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | static void set_op_prio(struct print_arg *arg) | |
1159 | { | |
1160 | ||
1161 | /* single ops are the greatest */ | |
1162 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { | |
1163 | arg->op.prio = 0; | |
1164 | return; | |
1165 | } | |
1166 | ||
1167 | arg->op.prio = get_op_prio(arg->op.op); | |
1168 | } | |
1169 | ||
1170 | static enum event_type | |
1171 | process_op(struct event *event, struct print_arg *arg, char **tok) | |
1172 | { | |
1173 | struct print_arg *left, *right = NULL; | |
1174 | enum event_type type; | |
1175 | char *token; | |
1176 | ||
1177 | /* the op is passed in via tok */ | |
1178 | token = *tok; | |
1179 | ||
1180 | if (arg->type == PRINT_OP && !arg->op.left) { | |
1181 | /* handle single op */ | |
1182 | if (token[1]) { | |
1183 | die("bad op token %s", token); | |
1184 | return EVENT_ERROR; | |
1185 | } | |
1186 | switch (token[0]) { | |
1187 | case '!': | |
1188 | case '+': | |
1189 | case '-': | |
1190 | break; | |
1191 | default: | |
1192 | die("bad op token %s", token); | |
1193 | return EVENT_ERROR; | |
1194 | } | |
1195 | ||
1196 | /* make an empty left */ | |
1197 | left = malloc_or_die(sizeof(*left)); | |
1198 | left->type = PRINT_NULL; | |
1199 | arg->op.left = left; | |
1200 | ||
1201 | right = malloc_or_die(sizeof(*right)); | |
1202 | arg->op.right = right; | |
1203 | ||
1204 | type = process_arg(event, right, tok); | |
1205 | ||
1206 | } else if (strcmp(token, "?") == 0) { | |
1207 | ||
1208 | left = malloc_or_die(sizeof(*left)); | |
1209 | /* copy the top arg to the left */ | |
1210 | *left = *arg; | |
1211 | ||
1212 | arg->type = PRINT_OP; | |
1213 | arg->op.op = token; | |
1214 | arg->op.left = left; | |
1215 | arg->op.prio = 0; | |
1216 | ||
1217 | type = process_cond(event, arg, tok); | |
1218 | ||
1219 | } else if (strcmp(token, ">>") == 0 || | |
1220 | strcmp(token, "<<") == 0 || | |
1221 | strcmp(token, "&") == 0 || | |
1222 | strcmp(token, "|") == 0 || | |
1223 | strcmp(token, "&&") == 0 || | |
1224 | strcmp(token, "||") == 0 || | |
1225 | strcmp(token, "-") == 0 || | |
1226 | strcmp(token, "+") == 0 || | |
1227 | strcmp(token, "*") == 0 || | |
1228 | strcmp(token, "^") == 0 || | |
1229 | strcmp(token, "/") == 0 || | |
298ebc3e SR |
1230 | strcmp(token, "<") == 0 || |
1231 | strcmp(token, ">") == 0 || | |
ea4010d1 SR |
1232 | strcmp(token, "==") == 0 || |
1233 | strcmp(token, "!=") == 0) { | |
1234 | ||
1235 | left = malloc_or_die(sizeof(*left)); | |
1236 | ||
1237 | /* copy the top arg to the left */ | |
1238 | *left = *arg; | |
1239 | ||
1240 | arg->type = PRINT_OP; | |
1241 | arg->op.op = token; | |
1242 | arg->op.left = left; | |
1243 | ||
1244 | set_op_prio(arg); | |
1245 | ||
1246 | right = malloc_or_die(sizeof(*right)); | |
1247 | ||
b99af874 SR |
1248 | type = read_token_item(&token); |
1249 | *tok = token; | |
1250 | ||
1251 | /* could just be a type pointer */ | |
1252 | if ((strcmp(arg->op.op, "*") == 0) && | |
1253 | type == EVENT_DELIM && (strcmp(token, ")") == 0)) { | |
1254 | if (left->type != PRINT_ATOM) | |
1255 | die("bad pointer type"); | |
1256 | left->atom.atom = realloc(left->atom.atom, | |
1257 | sizeof(left->atom.atom) + 3); | |
1258 | strcat(left->atom.atom, " *"); | |
1259 | *arg = *left; | |
1260 | free(arg); | |
1261 | ||
1262 | return type; | |
1263 | } | |
1264 | ||
1265 | type = process_arg_token(event, right, tok, type); | |
ea4010d1 SR |
1266 | |
1267 | arg->op.right = right; | |
1268 | ||
0959b8d6 SR |
1269 | } else if (strcmp(token, "[") == 0) { |
1270 | ||
1271 | left = malloc_or_die(sizeof(*left)); | |
1272 | *left = *arg; | |
1273 | ||
1274 | arg->type = PRINT_OP; | |
1275 | arg->op.op = token; | |
1276 | arg->op.left = left; | |
1277 | ||
1278 | arg->op.prio = 0; | |
1279 | type = process_array(event, arg, tok); | |
1280 | ||
ea4010d1 | 1281 | } else { |
07a4bddd SR |
1282 | warning("unknown op '%s'", token); |
1283 | event->flags |= EVENT_FL_FAILED; | |
ea4010d1 SR |
1284 | /* the arg is now the left side */ |
1285 | return EVENT_NONE; | |
1286 | } | |
1287 | ||
ea4010d1 SR |
1288 | if (type == EVENT_OP) { |
1289 | int prio; | |
1290 | ||
1291 | /* higher prios need to be closer to the root */ | |
1292 | prio = get_op_prio(*tok); | |
1293 | ||
1294 | if (prio > arg->op.prio) | |
1295 | return process_op(event, arg, tok); | |
1296 | ||
1297 | return process_op(event, right, tok); | |
1298 | } | |
1299 | ||
1300 | return type; | |
1301 | } | |
1302 | ||
1303 | static enum event_type | |
1304 | process_entry(struct event *event __unused, struct print_arg *arg, | |
1305 | char **tok) | |
1306 | { | |
1307 | enum event_type type; | |
1308 | char *field; | |
1309 | char *token; | |
1310 | ||
c4dc775f | 1311 | if (read_expected(EVENT_OP, "->") < 0) |
ea4010d1 SR |
1312 | return EVENT_ERROR; |
1313 | ||
1314 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1315 | goto fail; | |
1316 | field = token; | |
1317 | ||
1318 | arg->type = PRINT_FIELD; | |
1319 | arg->field.name = field; | |
1320 | ||
eb9a42ca TZ |
1321 | if (is_flag_field) { |
1322 | arg->field.field = find_any_field(event, arg->field.name); | |
1323 | arg->field.field->flags |= FIELD_IS_FLAG; | |
1324 | is_flag_field = 0; | |
1325 | } else if (is_symbolic_field) { | |
1326 | arg->field.field = find_any_field(event, arg->field.name); | |
1327 | arg->field.field->flags |= FIELD_IS_SYMBOLIC; | |
1328 | is_symbolic_field = 0; | |
1329 | } | |
1330 | ||
ea4010d1 SR |
1331 | type = read_token(&token); |
1332 | *tok = token; | |
1333 | ||
1334 | return type; | |
1335 | ||
1336 | fail: | |
1337 | free_token(token); | |
1338 | return EVENT_ERROR; | |
1339 | } | |
1340 | ||
1341 | static char *arg_eval (struct print_arg *arg); | |
1342 | ||
1343 | static long long arg_num_eval(struct print_arg *arg) | |
1344 | { | |
1345 | long long left, right; | |
1346 | long long val = 0; | |
1347 | ||
1348 | switch (arg->type) { | |
1349 | case PRINT_ATOM: | |
1350 | val = strtoll(arg->atom.atom, NULL, 0); | |
1351 | break; | |
1352 | case PRINT_TYPE: | |
1353 | val = arg_num_eval(arg->typecast.item); | |
1354 | break; | |
1355 | case PRINT_OP: | |
1356 | switch (arg->op.op[0]) { | |
1357 | case '|': | |
1358 | left = arg_num_eval(arg->op.left); | |
1359 | right = arg_num_eval(arg->op.right); | |
1360 | if (arg->op.op[1]) | |
1361 | val = left || right; | |
1362 | else | |
1363 | val = left | right; | |
1364 | break; | |
1365 | case '&': | |
1366 | left = arg_num_eval(arg->op.left); | |
1367 | right = arg_num_eval(arg->op.right); | |
1368 | if (arg->op.op[1]) | |
1369 | val = left && right; | |
1370 | else | |
1371 | val = left & right; | |
1372 | break; | |
1373 | case '<': | |
1374 | left = arg_num_eval(arg->op.left); | |
1375 | right = arg_num_eval(arg->op.right); | |
1376 | switch (arg->op.op[1]) { | |
1377 | case 0: | |
1378 | val = left < right; | |
1379 | break; | |
1380 | case '<': | |
1381 | val = left << right; | |
1382 | break; | |
1383 | case '=': | |
1384 | val = left <= right; | |
1385 | break; | |
1386 | default: | |
1387 | die("unknown op '%s'", arg->op.op); | |
1388 | } | |
1389 | break; | |
1390 | case '>': | |
1391 | left = arg_num_eval(arg->op.left); | |
1392 | right = arg_num_eval(arg->op.right); | |
1393 | switch (arg->op.op[1]) { | |
1394 | case 0: | |
1395 | val = left > right; | |
1396 | break; | |
1397 | case '>': | |
1398 | val = left >> right; | |
1399 | break; | |
1400 | case '=': | |
1401 | val = left >= right; | |
1402 | break; | |
1403 | default: | |
1404 | die("unknown op '%s'", arg->op.op); | |
1405 | } | |
1406 | break; | |
1407 | case '=': | |
1408 | left = arg_num_eval(arg->op.left); | |
1409 | right = arg_num_eval(arg->op.right); | |
1410 | ||
1411 | if (arg->op.op[1] != '=') | |
1412 | die("unknown op '%s'", arg->op.op); | |
1413 | ||
1414 | val = left == right; | |
1415 | break; | |
1416 | case '!': | |
1417 | left = arg_num_eval(arg->op.left); | |
1418 | right = arg_num_eval(arg->op.right); | |
1419 | ||
1420 | switch (arg->op.op[1]) { | |
1421 | case '=': | |
1422 | val = left != right; | |
1423 | break; | |
1424 | default: | |
1425 | die("unknown op '%s'", arg->op.op); | |
1426 | } | |
1427 | break; | |
1428 | default: | |
1429 | die("unknown op '%s'", arg->op.op); | |
1430 | } | |
1431 | break; | |
1432 | ||
1433 | case PRINT_NULL: | |
1434 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1435 | case PRINT_STRING: | |
1436 | default: | |
1437 | die("invalid eval type %d", arg->type); | |
1438 | ||
1439 | } | |
1440 | return val; | |
1441 | } | |
1442 | ||
1443 | static char *arg_eval (struct print_arg *arg) | |
1444 | { | |
1445 | long long val; | |
1446 | static char buf[20]; | |
1447 | ||
1448 | switch (arg->type) { | |
1449 | case PRINT_ATOM: | |
1450 | return arg->atom.atom; | |
1451 | case PRINT_TYPE: | |
1452 | return arg_eval(arg->typecast.item); | |
1453 | case PRINT_OP: | |
1454 | val = arg_num_eval(arg); | |
1455 | sprintf(buf, "%lld", val); | |
1456 | return buf; | |
1457 | ||
1458 | case PRINT_NULL: | |
1459 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1460 | case PRINT_STRING: | |
1461 | default: | |
1462 | die("invalid eval type %d", arg->type); | |
1463 | break; | |
1464 | } | |
1465 | ||
1466 | return NULL; | |
1467 | } | |
1468 | ||
1469 | static enum event_type | |
1470 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) | |
1471 | { | |
1472 | enum event_type type; | |
1473 | struct print_arg *arg = NULL; | |
1474 | struct print_flag_sym *field; | |
1475 | char *token = NULL; | |
1476 | char *value; | |
1477 | ||
1478 | do { | |
1479 | free_token(token); | |
1480 | type = read_token_item(&token); | |
c4dc775f | 1481 | if (test_type_token(type, token, EVENT_OP, "{")) |
ea4010d1 SR |
1482 | break; |
1483 | ||
1484 | arg = malloc_or_die(sizeof(*arg)); | |
1485 | ||
1486 | free_token(token); | |
1487 | type = process_arg(event, arg, &token); | |
c4dc775f | 1488 | if (test_type_token(type, token, EVENT_DELIM, ",")) |
ea4010d1 SR |
1489 | goto out_free; |
1490 | ||
1491 | field = malloc_or_die(sizeof(*field)); | |
5660ce34 | 1492 | memset(field, 0, sizeof(*field)); |
ea4010d1 SR |
1493 | |
1494 | value = arg_eval(arg); | |
1495 | field->value = strdup(value); | |
1496 | ||
1497 | free_token(token); | |
1498 | type = process_arg(event, arg, &token); | |
c4dc775f | 1499 | if (test_type_token(type, token, EVENT_OP, "}")) |
ea4010d1 SR |
1500 | goto out_free; |
1501 | ||
1502 | value = arg_eval(arg); | |
1503 | field->str = strdup(value); | |
1504 | free_arg(arg); | |
1505 | arg = NULL; | |
1506 | ||
1507 | *list = field; | |
1508 | list = &field->next; | |
1509 | ||
1510 | free_token(token); | |
1511 | type = read_token_item(&token); | |
1512 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); | |
1513 | ||
1514 | *tok = token; | |
1515 | return type; | |
1516 | ||
1517 | out_free: | |
1518 | free_arg(arg); | |
1519 | free_token(token); | |
1520 | ||
1521 | return EVENT_ERROR; | |
1522 | } | |
1523 | ||
1524 | static enum event_type | |
1525 | process_flags(struct event *event, struct print_arg *arg, char **tok) | |
1526 | { | |
1527 | struct print_arg *field; | |
1528 | enum event_type type; | |
1529 | char *token; | |
1530 | ||
1531 | memset(arg, 0, sizeof(*arg)); | |
1532 | arg->type = PRINT_FLAGS; | |
1533 | ||
c4dc775f | 1534 | if (read_expected_item(EVENT_DELIM, "(") < 0) |
ea4010d1 SR |
1535 | return EVENT_ERROR; |
1536 | ||
1537 | field = malloc_or_die(sizeof(*field)); | |
1538 | ||
1539 | type = process_arg(event, field, &token); | |
49908a1b SR |
1540 | while (type == EVENT_OP) |
1541 | type = process_op(event, field, &token); | |
c4dc775f | 1542 | if (test_type_token(type, token, EVENT_DELIM, ",")) |
ea4010d1 SR |
1543 | goto out_free; |
1544 | ||
1545 | arg->flags.field = field; | |
1546 | ||
1547 | type = read_token_item(&token); | |
1548 | if (event_item_type(type)) { | |
1549 | arg->flags.delim = token; | |
1550 | type = read_token_item(&token); | |
1551 | } | |
1552 | ||
c4dc775f | 1553 | if (test_type_token(type, token, EVENT_DELIM, ",")) |
ea4010d1 SR |
1554 | goto out_free; |
1555 | ||
1556 | type = process_fields(event, &arg->flags.flags, &token); | |
c4dc775f | 1557 | if (test_type_token(type, token, EVENT_DELIM, ")")) |
ea4010d1 SR |
1558 | goto out_free; |
1559 | ||
1560 | free_token(token); | |
1561 | type = read_token_item(tok); | |
1562 | return type; | |
1563 | ||
1564 | out_free: | |
1565 | free_token(token); | |
1566 | return EVENT_ERROR; | |
1567 | } | |
1568 | ||
1569 | static enum event_type | |
1570 | process_symbols(struct event *event, struct print_arg *arg, char **tok) | |
1571 | { | |
1572 | struct print_arg *field; | |
1573 | enum event_type type; | |
1574 | char *token; | |
1575 | ||
1576 | memset(arg, 0, sizeof(*arg)); | |
1577 | arg->type = PRINT_SYMBOL; | |
1578 | ||
c4dc775f | 1579 | if (read_expected_item(EVENT_DELIM, "(") < 0) |
ea4010d1 SR |
1580 | return EVENT_ERROR; |
1581 | ||
1582 | field = malloc_or_die(sizeof(*field)); | |
1583 | ||
1584 | type = process_arg(event, field, &token); | |
c4dc775f | 1585 | if (test_type_token(type, token, EVENT_DELIM, ",")) |
ea4010d1 SR |
1586 | goto out_free; |
1587 | ||
1588 | arg->symbol.field = field; | |
1589 | ||
1590 | type = process_fields(event, &arg->symbol.symbols, &token); | |
c4dc775f | 1591 | if (test_type_token(type, token, EVENT_DELIM, ")")) |
ea4010d1 SR |
1592 | goto out_free; |
1593 | ||
1594 | free_token(token); | |
1595 | type = read_token_item(tok); | |
1596 | return type; | |
1597 | ||
1598 | out_free: | |
1599 | free_token(token); | |
1600 | return EVENT_ERROR; | |
1601 | } | |
1602 | ||
1603 | static enum event_type | |
1604 | process_paren(struct event *event, struct print_arg *arg, char **tok) | |
1605 | { | |
1606 | struct print_arg *item_arg; | |
1607 | enum event_type type; | |
1608 | char *token; | |
1609 | ||
1610 | type = process_arg(event, arg, &token); | |
1611 | ||
1612 | if (type == EVENT_ERROR) | |
1613 | return EVENT_ERROR; | |
1614 | ||
b99af874 SR |
1615 | if (type == EVENT_OP) |
1616 | type = process_op(event, arg, &token); | |
ea4010d1 | 1617 | |
b99af874 SR |
1618 | if (type == EVENT_ERROR) |
1619 | return EVENT_ERROR; | |
ea4010d1 | 1620 | |
c4dc775f | 1621 | if (test_type_token(type, token, EVENT_DELIM, ")")) { |
ea4010d1 SR |
1622 | free_token(token); |
1623 | return EVENT_ERROR; | |
1624 | } | |
1625 | ||
1626 | free_token(token); | |
1627 | type = read_token_item(&token); | |
1628 | ||
1629 | /* | |
1630 | * If the next token is an item or another open paren, then | |
1631 | * this was a typecast. | |
1632 | */ | |
1633 | if (event_item_type(type) || | |
1634 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { | |
1635 | ||
1636 | /* make this a typecast and contine */ | |
1637 | ||
1638 | /* prevous must be an atom */ | |
1639 | if (arg->type != PRINT_ATOM) | |
1640 | die("previous needed to be PRINT_ATOM"); | |
1641 | ||
1642 | item_arg = malloc_or_die(sizeof(*item_arg)); | |
1643 | ||
1644 | arg->type = PRINT_TYPE; | |
1645 | arg->typecast.type = arg->atom.atom; | |
1646 | arg->typecast.item = item_arg; | |
1647 | type = process_arg_token(event, item_arg, &token, type); | |
1648 | ||
1649 | } | |
1650 | ||
1651 | *tok = token; | |
1652 | return type; | |
1653 | } | |
1654 | ||
1655 | ||
1656 | static enum event_type | |
1657 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) | |
1658 | { | |
1659 | enum event_type type; | |
1660 | char *token; | |
1661 | ||
c4dc775f | 1662 | if (read_expected(EVENT_DELIM, "(") < 0) |
ea4010d1 SR |
1663 | return EVENT_ERROR; |
1664 | ||
1665 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1666 | goto fail; | |
1667 | ||
1668 | arg->type = PRINT_STRING; | |
1669 | arg->string.string = token; | |
561f732c | 1670 | arg->string.offset = -1; |
ea4010d1 | 1671 | |
c4dc775f | 1672 | if (read_expected(EVENT_DELIM, ")") < 0) |
ea4010d1 SR |
1673 | return EVENT_ERROR; |
1674 | ||
1675 | type = read_token(&token); | |
1676 | *tok = token; | |
1677 | ||
1678 | return type; | |
1679 | fail: | |
1680 | free_token(token); | |
1681 | return EVENT_ERROR; | |
1682 | } | |
1683 | ||
1684 | enum event_type | |
1685 | process_arg_token(struct event *event, struct print_arg *arg, | |
1686 | char **tok, enum event_type type) | |
1687 | { | |
1688 | char *token; | |
1689 | char *atom; | |
1690 | ||
1691 | token = *tok; | |
1692 | ||
1693 | switch (type) { | |
1694 | case EVENT_ITEM: | |
1695 | if (strcmp(token, "REC") == 0) { | |
1696 | free_token(token); | |
1697 | type = process_entry(event, arg, &token); | |
1698 | } else if (strcmp(token, "__print_flags") == 0) { | |
1699 | free_token(token); | |
eb9a42ca | 1700 | is_flag_field = 1; |
ea4010d1 SR |
1701 | type = process_flags(event, arg, &token); |
1702 | } else if (strcmp(token, "__print_symbolic") == 0) { | |
1703 | free_token(token); | |
eb9a42ca | 1704 | is_symbolic_field = 1; |
ea4010d1 SR |
1705 | type = process_symbols(event, arg, &token); |
1706 | } else if (strcmp(token, "__get_str") == 0) { | |
1707 | free_token(token); | |
1708 | type = process_str(event, arg, &token); | |
1709 | } else { | |
1710 | atom = token; | |
1711 | /* test the next token */ | |
1712 | type = read_token_item(&token); | |
1713 | ||
1714 | /* atoms can be more than one token long */ | |
1715 | while (type == EVENT_ITEM) { | |
1716 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); | |
1717 | strcat(atom, " "); | |
1718 | strcat(atom, token); | |
1719 | free_token(token); | |
1720 | type = read_token_item(&token); | |
1721 | } | |
1722 | ||
1723 | /* todo, test for function */ | |
1724 | ||
1725 | arg->type = PRINT_ATOM; | |
1726 | arg->atom.atom = atom; | |
1727 | } | |
1728 | break; | |
1729 | case EVENT_DQUOTE: | |
1730 | case EVENT_SQUOTE: | |
1731 | arg->type = PRINT_ATOM; | |
1732 | arg->atom.atom = token; | |
1733 | type = read_token_item(&token); | |
1734 | break; | |
1735 | case EVENT_DELIM: | |
1736 | if (strcmp(token, "(") == 0) { | |
1737 | free_token(token); | |
1738 | type = process_paren(event, arg, &token); | |
1739 | break; | |
1740 | } | |
1741 | case EVENT_OP: | |
1742 | /* handle single ops */ | |
1743 | arg->type = PRINT_OP; | |
1744 | arg->op.op = token; | |
1745 | arg->op.left = NULL; | |
1746 | type = process_op(event, arg, &token); | |
1747 | ||
1748 | break; | |
1749 | ||
1750 | case EVENT_ERROR ... EVENT_NEWLINE: | |
1751 | default: | |
1752 | die("unexpected type %d", type); | |
1753 | } | |
1754 | *tok = token; | |
1755 | ||
1756 | return type; | |
1757 | } | |
1758 | ||
1759 | static int event_read_print_args(struct event *event, struct print_arg **list) | |
1760 | { | |
f1d1feec | 1761 | enum event_type type = EVENT_ERROR; |
ea4010d1 SR |
1762 | struct print_arg *arg; |
1763 | char *token; | |
1764 | int args = 0; | |
1765 | ||
1766 | do { | |
f1d1feec SR |
1767 | if (type == EVENT_NEWLINE) { |
1768 | free_token(token); | |
1769 | type = read_token_item(&token); | |
1770 | continue; | |
1771 | } | |
1772 | ||
ea4010d1 SR |
1773 | arg = malloc_or_die(sizeof(*arg)); |
1774 | memset(arg, 0, sizeof(*arg)); | |
1775 | ||
1776 | type = process_arg(event, arg, &token); | |
1777 | ||
1778 | if (type == EVENT_ERROR) { | |
1779 | free_arg(arg); | |
1780 | return -1; | |
1781 | } | |
1782 | ||
1783 | *list = arg; | |
1784 | args++; | |
1785 | ||
1786 | if (type == EVENT_OP) { | |
1787 | type = process_op(event, arg, &token); | |
1788 | list = &arg->next; | |
1789 | continue; | |
1790 | } | |
1791 | ||
1792 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { | |
1793 | free_token(token); | |
1794 | *list = arg; | |
1795 | list = &arg->next; | |
1796 | continue; | |
1797 | } | |
1798 | break; | |
1799 | } while (type != EVENT_NONE); | |
1800 | ||
1801 | if (type != EVENT_NONE) | |
1802 | free_token(token); | |
1803 | ||
1804 | return args; | |
1805 | } | |
1806 | ||
1807 | static int event_read_print(struct event *event) | |
1808 | { | |
1809 | enum event_type type; | |
1810 | char *token; | |
1811 | int ret; | |
1812 | ||
c4dc775f | 1813 | if (read_expected_item(EVENT_ITEM, "print") < 0) |
ea4010d1 SR |
1814 | return -1; |
1815 | ||
c4dc775f | 1816 | if (read_expected(EVENT_ITEM, "fmt") < 0) |
ea4010d1 SR |
1817 | return -1; |
1818 | ||
c4dc775f | 1819 | if (read_expected(EVENT_OP, ":") < 0) |
ea4010d1 SR |
1820 | return -1; |
1821 | ||
1822 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) | |
1823 | goto fail; | |
1824 | ||
924a79af | 1825 | concat: |
ea4010d1 SR |
1826 | event->print_fmt.format = token; |
1827 | event->print_fmt.args = NULL; | |
1828 | ||
1829 | /* ok to have no arg */ | |
1830 | type = read_token_item(&token); | |
1831 | ||
1832 | if (type == EVENT_NONE) | |
1833 | return 0; | |
1834 | ||
924a79af SR |
1835 | /* Handle concatination of print lines */ |
1836 | if (type == EVENT_DQUOTE) { | |
1837 | char *cat; | |
1838 | ||
1839 | cat = malloc_or_die(strlen(event->print_fmt.format) + | |
1840 | strlen(token) + 1); | |
1841 | strcpy(cat, event->print_fmt.format); | |
1842 | strcat(cat, token); | |
1843 | free_token(token); | |
1844 | free_token(event->print_fmt.format); | |
1845 | event->print_fmt.format = NULL; | |
1846 | token = cat; | |
1847 | goto concat; | |
1848 | } | |
c4dc775f SR |
1849 | |
1850 | if (test_type_token(type, token, EVENT_DELIM, ",")) | |
ea4010d1 SR |
1851 | goto fail; |
1852 | ||
1853 | free_token(token); | |
1854 | ||
1855 | ret = event_read_print_args(event, &event->print_fmt.args); | |
1856 | if (ret < 0) | |
1857 | return -1; | |
1858 | ||
0d1da915 | 1859 | return ret; |
ea4010d1 SR |
1860 | |
1861 | fail: | |
1862 | free_token(token); | |
1863 | return -1; | |
1864 | } | |
1865 | ||
1866 | static struct format_field * | |
1867 | find_common_field(struct event *event, const char *name) | |
1868 | { | |
1869 | struct format_field *format; | |
1870 | ||
1871 | for (format = event->format.common_fields; | |
1872 | format; format = format->next) { | |
1873 | if (strcmp(format->name, name) == 0) | |
1874 | break; | |
1875 | } | |
1876 | ||
1877 | return format; | |
1878 | } | |
1879 | ||
1880 | static struct format_field * | |
1881 | find_field(struct event *event, const char *name) | |
1882 | { | |
1883 | struct format_field *format; | |
1884 | ||
1885 | for (format = event->format.fields; | |
1886 | format; format = format->next) { | |
1887 | if (strcmp(format->name, name) == 0) | |
1888 | break; | |
1889 | } | |
1890 | ||
1891 | return format; | |
1892 | } | |
1893 | ||
1894 | static struct format_field * | |
1895 | find_any_field(struct event *event, const char *name) | |
1896 | { | |
1897 | struct format_field *format; | |
1898 | ||
1899 | format = find_common_field(event, name); | |
1900 | if (format) | |
1901 | return format; | |
1902 | return find_field(event, name); | |
1903 | } | |
1904 | ||
16c632de | 1905 | unsigned long long read_size(void *ptr, int size) |
ea4010d1 SR |
1906 | { |
1907 | switch (size) { | |
1908 | case 1: | |
1909 | return *(unsigned char *)ptr; | |
1910 | case 2: | |
1911 | return data2host2(ptr); | |
1912 | case 4: | |
1913 | return data2host4(ptr); | |
1914 | case 8: | |
1915 | return data2host8(ptr); | |
1916 | default: | |
1917 | /* BUG! */ | |
1918 | return 0; | |
1919 | } | |
1920 | } | |
1921 | ||
46538818 FW |
1922 | unsigned long long |
1923 | raw_field_value(struct event *event, const char *name, void *data) | |
1924 | { | |
1925 | struct format_field *field; | |
1926 | ||
1927 | field = find_any_field(event, name); | |
1928 | if (!field) | |
1929 | return 0ULL; | |
1930 | ||
1931 | return read_size(data + field->offset, field->size); | |
1932 | } | |
1933 | ||
1934 | void *raw_field_ptr(struct event *event, const char *name, void *data) | |
1935 | { | |
1936 | struct format_field *field; | |
1937 | ||
1938 | field = find_any_field(event, name); | |
1939 | if (!field) | |
1940 | return NULL; | |
1941 | ||
de068ec0 | 1942 | if (field->flags & FIELD_IS_DYNAMIC) { |
86d8d296 HM |
1943 | int offset; |
1944 | ||
1945 | offset = *(int *)(data + field->offset); | |
1946 | offset &= 0xffff; | |
1947 | ||
1948 | return data + offset; | |
1949 | } | |
1950 | ||
46538818 FW |
1951 | return data + field->offset; |
1952 | } | |
1953 | ||
ea4010d1 SR |
1954 | static int get_common_info(const char *type, int *offset, int *size) |
1955 | { | |
1956 | struct event *event; | |
1957 | struct format_field *field; | |
1958 | ||
1959 | /* | |
1960 | * All events should have the same common elements. | |
1961 | * Pick any event to find where the type is; | |
1962 | */ | |
1963 | if (!event_list) | |
1964 | die("no event_list!"); | |
1965 | ||
1966 | event = event_list; | |
1967 | field = find_common_field(event, type); | |
1968 | if (!field) | |
1969 | die("field '%s' not found", type); | |
1970 | ||
1971 | *offset = field->offset; | |
1972 | *size = field->size; | |
1973 | ||
1974 | return 0; | |
1975 | } | |
1976 | ||
cda48461 | 1977 | static int __parse_common(void *data, int *size, int *offset, |
c4dc775f | 1978 | const char *name) |
ea4010d1 | 1979 | { |
ea4010d1 SR |
1980 | int ret; |
1981 | ||
cda48461 SR |
1982 | if (!*size) { |
1983 | ret = get_common_info(name, offset, size); | |
ea4010d1 SR |
1984 | if (ret < 0) |
1985 | return ret; | |
1986 | } | |
cda48461 SR |
1987 | return read_size(data + *offset, *size); |
1988 | } | |
1989 | ||
1990 | int trace_parse_common_type(void *data) | |
1991 | { | |
1992 | static int type_offset; | |
1993 | static int type_size; | |
1994 | ||
1995 | return __parse_common(data, &type_size, &type_offset, | |
c4dc775f | 1996 | "common_type"); |
ea4010d1 SR |
1997 | } |
1998 | ||
16c632de | 1999 | int trace_parse_common_pid(void *data) |
ea4010d1 SR |
2000 | { |
2001 | static int pid_offset; | |
2002 | static int pid_size; | |
cda48461 SR |
2003 | |
2004 | return __parse_common(data, &pid_size, &pid_offset, | |
c4dc775f | 2005 | "common_pid"); |
cda48461 SR |
2006 | } |
2007 | ||
d1b93772 | 2008 | int parse_common_pc(void *data) |
cda48461 SR |
2009 | { |
2010 | static int pc_offset; | |
2011 | static int pc_size; | |
2012 | ||
2013 | return __parse_common(data, &pc_size, &pc_offset, | |
c4dc775f | 2014 | "common_preempt_count"); |
cda48461 SR |
2015 | } |
2016 | ||
d1b93772 | 2017 | int parse_common_flags(void *data) |
cda48461 SR |
2018 | { |
2019 | static int flags_offset; | |
2020 | static int flags_size; | |
2021 | ||
2022 | return __parse_common(data, &flags_size, &flags_offset, | |
c4dc775f | 2023 | "common_flags"); |
cda48461 SR |
2024 | } |
2025 | ||
d1b93772 | 2026 | int parse_common_lock_depth(void *data) |
cda48461 SR |
2027 | { |
2028 | static int ld_offset; | |
2029 | static int ld_size; | |
ea4010d1 SR |
2030 | int ret; |
2031 | ||
cda48461 | 2032 | ret = __parse_common(data, &ld_size, &ld_offset, |
c4dc775f | 2033 | "common_lock_depth"); |
cda48461 SR |
2034 | if (ret < 0) |
2035 | return -1; | |
ea4010d1 | 2036 | |
cda48461 | 2037 | return ret; |
ea4010d1 SR |
2038 | } |
2039 | ||
ec156764 | 2040 | struct event *trace_find_event(int id) |
ea4010d1 SR |
2041 | { |
2042 | struct event *event; | |
2043 | ||
2044 | for (event = event_list; event; event = event->next) { | |
2045 | if (event->id == id) | |
2046 | break; | |
2047 | } | |
2048 | return event; | |
2049 | } | |
2050 | ||
16c632de TZ |
2051 | struct event *trace_find_next_event(struct event *event) |
2052 | { | |
2053 | if (!event) | |
2054 | return event_list; | |
2055 | ||
2056 | return event->next; | |
2057 | } | |
2058 | ||
ea4010d1 SR |
2059 | static unsigned long long eval_num_arg(void *data, int size, |
2060 | struct event *event, struct print_arg *arg) | |
2061 | { | |
2062 | unsigned long long val = 0; | |
2063 | unsigned long long left, right; | |
0959b8d6 | 2064 | struct print_arg *larg; |
ea4010d1 SR |
2065 | |
2066 | switch (arg->type) { | |
2067 | case PRINT_NULL: | |
2068 | /* ?? */ | |
2069 | return 0; | |
2070 | case PRINT_ATOM: | |
2071 | return strtoull(arg->atom.atom, NULL, 0); | |
2072 | case PRINT_FIELD: | |
2073 | if (!arg->field.field) { | |
2074 | arg->field.field = find_any_field(event, arg->field.name); | |
2075 | if (!arg->field.field) | |
2076 | die("field %s not found", arg->field.name); | |
2077 | } | |
2078 | /* must be a number */ | |
2079 | val = read_size(data + arg->field.field->offset, | |
2080 | arg->field.field->size); | |
2081 | break; | |
2082 | case PRINT_FLAGS: | |
2083 | case PRINT_SYMBOL: | |
2084 | break; | |
2085 | case PRINT_TYPE: | |
2086 | return eval_num_arg(data, size, event, arg->typecast.item); | |
2087 | case PRINT_STRING: | |
2088 | return 0; | |
2089 | break; | |
2090 | case PRINT_OP: | |
0959b8d6 SR |
2091 | if (strcmp(arg->op.op, "[") == 0) { |
2092 | /* | |
2093 | * Arrays are special, since we don't want | |
2094 | * to read the arg as is. | |
2095 | */ | |
2096 | if (arg->op.left->type != PRINT_FIELD) | |
2097 | goto default_op; /* oops, all bets off */ | |
2098 | larg = arg->op.left; | |
2099 | if (!larg->field.field) { | |
2100 | larg->field.field = | |
2101 | find_any_field(event, larg->field.name); | |
2102 | if (!larg->field.field) | |
2103 | die("field %s not found", larg->field.name); | |
2104 | } | |
2105 | right = eval_num_arg(data, size, event, arg->op.right); | |
2106 | val = read_size(data + larg->field.field->offset + | |
2107 | right * long_size, long_size); | |
2108 | break; | |
2109 | } | |
2110 | default_op: | |
ea4010d1 SR |
2111 | left = eval_num_arg(data, size, event, arg->op.left); |
2112 | right = eval_num_arg(data, size, event, arg->op.right); | |
2113 | switch (arg->op.op[0]) { | |
2114 | case '|': | |
2115 | if (arg->op.op[1]) | |
2116 | val = left || right; | |
2117 | else | |
2118 | val = left | right; | |
2119 | break; | |
2120 | case '&': | |
2121 | if (arg->op.op[1]) | |
2122 | val = left && right; | |
2123 | else | |
2124 | val = left & right; | |
2125 | break; | |
2126 | case '<': | |
2127 | switch (arg->op.op[1]) { | |
2128 | case 0: | |
2129 | val = left < right; | |
2130 | break; | |
2131 | case '<': | |
2132 | val = left << right; | |
2133 | break; | |
2134 | case '=': | |
2135 | val = left <= right; | |
2136 | break; | |
2137 | default: | |
2138 | die("unknown op '%s'", arg->op.op); | |
2139 | } | |
2140 | break; | |
2141 | case '>': | |
2142 | switch (arg->op.op[1]) { | |
2143 | case 0: | |
2144 | val = left > right; | |
2145 | break; | |
2146 | case '>': | |
2147 | val = left >> right; | |
2148 | break; | |
2149 | case '=': | |
2150 | val = left >= right; | |
2151 | break; | |
2152 | default: | |
2153 | die("unknown op '%s'", arg->op.op); | |
2154 | } | |
2155 | break; | |
2156 | case '=': | |
2157 | if (arg->op.op[1] != '=') | |
2158 | die("unknown op '%s'", arg->op.op); | |
2159 | val = left == right; | |
2160 | break; | |
afdf1a40 SR |
2161 | case '-': |
2162 | val = left - right; | |
2163 | break; | |
2164 | case '+': | |
2165 | val = left + right; | |
2166 | break; | |
ea4010d1 SR |
2167 | default: |
2168 | die("unknown op '%s'", arg->op.op); | |
2169 | } | |
2170 | break; | |
2171 | default: /* not sure what to do there */ | |
2172 | return 0; | |
2173 | } | |
2174 | return val; | |
2175 | } | |
2176 | ||
2177 | struct flag { | |
2178 | const char *name; | |
2179 | unsigned long long value; | |
2180 | }; | |
2181 | ||
2182 | static const struct flag flags[] = { | |
2183 | { "HI_SOFTIRQ", 0 }, | |
2184 | { "TIMER_SOFTIRQ", 1 }, | |
2185 | { "NET_TX_SOFTIRQ", 2 }, | |
2186 | { "NET_RX_SOFTIRQ", 3 }, | |
2187 | { "BLOCK_SOFTIRQ", 4 }, | |
b934cdd5 TZ |
2188 | { "BLOCK_IOPOLL_SOFTIRQ", 5 }, |
2189 | { "TASKLET_SOFTIRQ", 6 }, | |
2190 | { "SCHED_SOFTIRQ", 7 }, | |
2191 | { "HRTIMER_SOFTIRQ", 8 }, | |
09223371 | 2192 | { "RCU_SOFTIRQ", 9 }, |
ea4010d1 SR |
2193 | |
2194 | { "HRTIMER_NORESTART", 0 }, | |
2195 | { "HRTIMER_RESTART", 1 }, | |
2196 | }; | |
2197 | ||
16c632de | 2198 | unsigned long long eval_flag(const char *flag) |
ea4010d1 SR |
2199 | { |
2200 | int i; | |
2201 | ||
2202 | /* | |
2203 | * Some flags in the format files do not get converted. | |
2204 | * If the flag is not numeric, see if it is something that | |
2205 | * we already know about. | |
2206 | */ | |
2207 | if (isdigit(flag[0])) | |
2208 | return strtoull(flag, NULL, 0); | |
2209 | ||
2210 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
2211 | if (strcmp(flags[i].name, flag) == 0) | |
2212 | return flags[i].value; | |
2213 | ||
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | static void print_str_arg(void *data, int size, | |
2218 | struct event *event, struct print_arg *arg) | |
2219 | { | |
2220 | struct print_flag_sym *flag; | |
2221 | unsigned long long val, fval; | |
2222 | char *str; | |
2223 | int print; | |
2224 | ||
2225 | switch (arg->type) { | |
2226 | case PRINT_NULL: | |
2227 | /* ?? */ | |
2228 | return; | |
2229 | case PRINT_ATOM: | |
2230 | printf("%s", arg->atom.atom); | |
2231 | return; | |
2232 | case PRINT_FIELD: | |
2233 | if (!arg->field.field) { | |
2234 | arg->field.field = find_any_field(event, arg->field.name); | |
2235 | if (!arg->field.field) | |
2236 | die("field %s not found", arg->field.name); | |
2237 | } | |
2238 | str = malloc_or_die(arg->field.field->size + 1); | |
2239 | memcpy(str, data + arg->field.field->offset, | |
2240 | arg->field.field->size); | |
2241 | str[arg->field.field->size] = 0; | |
d498bc1f | 2242 | printf("%s", str); |
ea4010d1 SR |
2243 | free(str); |
2244 | break; | |
2245 | case PRINT_FLAGS: | |
2246 | val = eval_num_arg(data, size, event, arg->flags.field); | |
2247 | print = 0; | |
2248 | for (flag = arg->flags.flags; flag; flag = flag->next) { | |
2249 | fval = eval_flag(flag->value); | |
2250 | if (!val && !fval) { | |
2251 | printf("%s", flag->str); | |
2252 | break; | |
2253 | } | |
2254 | if (fval && (val & fval) == fval) { | |
2255 | if (print && arg->flags.delim) | |
2256 | printf("%s", arg->flags.delim); | |
2257 | printf("%s", flag->str); | |
2258 | print = 1; | |
2259 | val &= ~fval; | |
2260 | } | |
2261 | } | |
2262 | break; | |
2263 | case PRINT_SYMBOL: | |
2264 | val = eval_num_arg(data, size, event, arg->symbol.field); | |
2265 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { | |
2266 | fval = eval_flag(flag->value); | |
2267 | if (val == fval) { | |
2268 | printf("%s", flag->str); | |
2269 | break; | |
2270 | } | |
2271 | } | |
2272 | break; | |
2273 | ||
2274 | case PRINT_TYPE: | |
2275 | break; | |
561f732c FW |
2276 | case PRINT_STRING: { |
2277 | int str_offset; | |
2278 | ||
2279 | if (arg->string.offset == -1) { | |
2280 | struct format_field *f; | |
2281 | ||
2282 | f = find_any_field(event, arg->string.string); | |
2283 | arg->string.offset = f->offset; | |
2284 | } | |
2285 | str_offset = *(int *)(data + arg->string.offset); | |
2286 | str_offset &= 0xffff; | |
2287 | printf("%s", ((char *)data) + str_offset); | |
ea4010d1 | 2288 | break; |
561f732c | 2289 | } |
ea4010d1 SR |
2290 | case PRINT_OP: |
2291 | /* | |
2292 | * The only op for string should be ? : | |
2293 | */ | |
2294 | if (arg->op.op[0] != '?') | |
2295 | return; | |
2296 | val = eval_num_arg(data, size, event, arg->op.left); | |
2297 | if (val) | |
2298 | print_str_arg(data, size, event, arg->op.right->op.left); | |
2299 | else | |
2300 | print_str_arg(data, size, event, arg->op.right->op.right); | |
2301 | break; | |
2302 | default: | |
2303 | /* well... */ | |
2304 | break; | |
2305 | } | |
2306 | } | |
2307 | ||
2308 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) | |
2309 | { | |
2310 | static struct format_field *field, *ip_field; | |
2311 | struct print_arg *args, *arg, **next; | |
2312 | unsigned long long ip, val; | |
2313 | char *ptr; | |
2314 | void *bptr; | |
2315 | ||
2316 | if (!field) { | |
2317 | field = find_field(event, "buf"); | |
2318 | if (!field) | |
2319 | die("can't find buffer field for binary printk"); | |
2320 | ip_field = find_field(event, "ip"); | |
2321 | if (!ip_field) | |
2322 | die("can't find ip field for binary printk"); | |
2323 | } | |
2324 | ||
2325 | ip = read_size(data + ip_field->offset, ip_field->size); | |
2326 | ||
2327 | /* | |
2328 | * The first arg is the IP pointer. | |
2329 | */ | |
2330 | args = malloc_or_die(sizeof(*args)); | |
2331 | arg = args; | |
2332 | arg->next = NULL; | |
2333 | next = &arg->next; | |
2334 | ||
2335 | arg->type = PRINT_ATOM; | |
2336 | arg->atom.atom = malloc_or_die(32); | |
2337 | sprintf(arg->atom.atom, "%lld", ip); | |
2338 | ||
2339 | /* skip the first "%pf : " */ | |
2340 | for (ptr = fmt + 6, bptr = data + field->offset; | |
2341 | bptr < data + size && *ptr; ptr++) { | |
2342 | int ls = 0; | |
2343 | ||
2344 | if (*ptr == '%') { | |
2345 | process_again: | |
2346 | ptr++; | |
2347 | switch (*ptr) { | |
2348 | case '%': | |
2349 | break; | |
2350 | case 'l': | |
2351 | ls++; | |
2352 | goto process_again; | |
2353 | case 'L': | |
2354 | ls = 2; | |
2355 | goto process_again; | |
2356 | case '0' ... '9': | |
2357 | goto process_again; | |
2358 | case 'p': | |
2359 | ls = 1; | |
2360 | /* fall through */ | |
2361 | case 'd': | |
2362 | case 'u': | |
2363 | case 'x': | |
2364 | case 'i': | |
ffa18955 SR |
2365 | /* the pointers are always 4 bytes aligned */ |
2366 | bptr = (void *)(((unsigned long)bptr + 3) & | |
2367 | ~3); | |
ea4010d1 SR |
2368 | switch (ls) { |
2369 | case 0: | |
2370 | case 1: | |
2371 | ls = long_size; | |
2372 | break; | |
2373 | case 2: | |
2374 | ls = 8; | |
2375 | default: | |
2376 | break; | |
2377 | } | |
2378 | val = read_size(bptr, ls); | |
2379 | bptr += ls; | |
2380 | arg = malloc_or_die(sizeof(*arg)); | |
2381 | arg->next = NULL; | |
2382 | arg->type = PRINT_ATOM; | |
2383 | arg->atom.atom = malloc_or_die(32); | |
2384 | sprintf(arg->atom.atom, "%lld", val); | |
2385 | *next = arg; | |
2386 | next = &arg->next; | |
2387 | break; | |
2388 | case 's': | |
2389 | arg = malloc_or_die(sizeof(*arg)); | |
2390 | arg->next = NULL; | |
2391 | arg->type = PRINT_STRING; | |
2392 | arg->string.string = strdup(bptr); | |
2393 | bptr += strlen(bptr) + 1; | |
2394 | *next = arg; | |
2395 | next = &arg->next; | |
2396 | default: | |
2397 | break; | |
2398 | } | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | return args; | |
2403 | } | |
2404 | ||
2405 | static void free_args(struct print_arg *args) | |
2406 | { | |
2407 | struct print_arg *next; | |
2408 | ||
2409 | while (args) { | |
2410 | next = args->next; | |
2411 | ||
2412 | if (args->type == PRINT_ATOM) | |
2413 | free(args->atom.atom); | |
2414 | else | |
2415 | free(args->string.string); | |
2416 | free(args); | |
2417 | args = next; | |
2418 | } | |
2419 | } | |
2420 | ||
2421 | static char *get_bprint_format(void *data, int size __unused, struct event *event) | |
2422 | { | |
2423 | unsigned long long addr; | |
2424 | static struct format_field *field; | |
2425 | struct printk_map *printk; | |
2426 | char *format; | |
2427 | char *p; | |
2428 | ||
2429 | if (!field) { | |
2430 | field = find_field(event, "fmt"); | |
2431 | if (!field) | |
2432 | die("can't find format field for binary printk"); | |
2433 | printf("field->offset = %d size=%d\n", field->offset, field->size); | |
2434 | } | |
2435 | ||
2436 | addr = read_size(data + field->offset, field->size); | |
2437 | ||
2438 | printk = find_printk(addr); | |
2439 | if (!printk) { | |
2440 | format = malloc_or_die(45); | |
2441 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", | |
2442 | addr); | |
2443 | return format; | |
2444 | } | |
2445 | ||
2446 | p = printk->printk; | |
2447 | /* Remove any quotes. */ | |
2448 | if (*p == '"') | |
2449 | p++; | |
2450 | format = malloc_or_die(strlen(p) + 10); | |
2451 | sprintf(format, "%s : %s", "%pf", p); | |
2452 | /* remove ending quotes and new line since we will add one too */ | |
2453 | p = format + strlen(format) - 1; | |
2454 | if (*p == '"') | |
2455 | *p = 0; | |
2456 | ||
2457 | p -= 2; | |
2458 | if (strcmp(p, "\\n") == 0) | |
2459 | *p = 0; | |
2460 | ||
2461 | return format; | |
2462 | } | |
2463 | ||
2464 | static void pretty_print(void *data, int size, struct event *event) | |
2465 | { | |
2466 | struct print_fmt *print_fmt = &event->print_fmt; | |
2467 | struct print_arg *arg = print_fmt->args; | |
2468 | struct print_arg *args = NULL; | |
2469 | const char *ptr = print_fmt->format; | |
2470 | unsigned long long val; | |
2471 | struct func_map *func; | |
2472 | const char *saveptr; | |
2473 | char *bprint_fmt = NULL; | |
2474 | char format[32]; | |
2475 | int show_func; | |
2476 | int len; | |
2477 | int ls; | |
2478 | ||
2479 | if (event->flags & EVENT_FL_ISFUNC) | |
2480 | ptr = " %pF <-- %pF"; | |
2481 | ||
2482 | if (event->flags & EVENT_FL_ISBPRINT) { | |
2483 | bprint_fmt = get_bprint_format(data, size, event); | |
2484 | args = make_bprint_args(bprint_fmt, data, size, event); | |
2485 | arg = args; | |
2486 | ptr = bprint_fmt; | |
2487 | } | |
2488 | ||
2489 | for (; *ptr; ptr++) { | |
2490 | ls = 0; | |
91ff2bc1 SR |
2491 | if (*ptr == '\\') { |
2492 | ptr++; | |
2493 | switch (*ptr) { | |
2494 | case 'n': | |
2495 | printf("\n"); | |
2496 | break; | |
2497 | case 't': | |
2498 | printf("\t"); | |
2499 | break; | |
2500 | case 'r': | |
2501 | printf("\r"); | |
2502 | break; | |
2503 | case '\\': | |
2504 | printf("\\"); | |
2505 | break; | |
2506 | default: | |
2507 | printf("%c", *ptr); | |
2508 | break; | |
2509 | } | |
2510 | ||
2511 | } else if (*ptr == '%') { | |
ea4010d1 SR |
2512 | saveptr = ptr; |
2513 | show_func = 0; | |
2514 | cont_process: | |
2515 | ptr++; | |
2516 | switch (*ptr) { | |
2517 | case '%': | |
2518 | printf("%%"); | |
2519 | break; | |
2520 | case 'l': | |
2521 | ls++; | |
2522 | goto cont_process; | |
2523 | case 'L': | |
2524 | ls = 2; | |
2525 | goto cont_process; | |
2526 | case 'z': | |
2527 | case 'Z': | |
2528 | case '0' ... '9': | |
2529 | goto cont_process; | |
2530 | case 'p': | |
2531 | if (long_size == 4) | |
2532 | ls = 1; | |
2533 | else | |
2534 | ls = 2; | |
2535 | ||
2536 | if (*(ptr+1) == 'F' || | |
2537 | *(ptr+1) == 'f') { | |
2538 | ptr++; | |
2539 | show_func = *ptr; | |
2540 | } | |
2541 | ||
2542 | /* fall through */ | |
2543 | case 'd': | |
2544 | case 'i': | |
2545 | case 'x': | |
2546 | case 'X': | |
2547 | case 'u': | |
2548 | if (!arg) | |
2549 | die("no argument match"); | |
2550 | ||
2551 | len = ((unsigned long)ptr + 1) - | |
2552 | (unsigned long)saveptr; | |
2553 | ||
2554 | /* should never happen */ | |
2555 | if (len > 32) | |
2556 | die("bad format!"); | |
2557 | ||
2558 | memcpy(format, saveptr, len); | |
2559 | format[len] = 0; | |
2560 | ||
2561 | val = eval_num_arg(data, size, event, arg); | |
2562 | arg = arg->next; | |
2563 | ||
2564 | if (show_func) { | |
2565 | func = find_func(val); | |
2566 | if (func) { | |
2567 | printf("%s", func->func); | |
2568 | if (show_func == 'F') | |
2569 | printf("+0x%llx", | |
2570 | val - func->addr); | |
2571 | break; | |
2572 | } | |
2573 | } | |
2574 | switch (ls) { | |
2575 | case 0: | |
2576 | printf(format, (int)val); | |
2577 | break; | |
2578 | case 1: | |
2579 | printf(format, (long)val); | |
2580 | break; | |
2581 | case 2: | |
2582 | printf(format, (long long)val); | |
2583 | break; | |
2584 | default: | |
2585 | die("bad count (%d)", ls); | |
2586 | } | |
2587 | break; | |
2588 | case 's': | |
2589 | if (!arg) | |
2590 | die("no matching argument"); | |
2591 | ||
2592 | print_str_arg(data, size, event, arg); | |
2593 | arg = arg->next; | |
2594 | break; | |
2595 | default: | |
2596 | printf(">%c<", *ptr); | |
2597 | ||
2598 | } | |
2599 | } else | |
2600 | printf("%c", *ptr); | |
2601 | } | |
2602 | ||
2603 | if (args) { | |
2604 | free_args(args); | |
2605 | free(bprint_fmt); | |
2606 | } | |
2607 | } | |
2608 | ||
2609 | static inline int log10_cpu(int nb) | |
2610 | { | |
2611 | if (nb / 100) | |
2612 | return 3; | |
2613 | if (nb / 10) | |
2614 | return 2; | |
2615 | return 1; | |
2616 | } | |
2617 | ||
cda48461 SR |
2618 | static void print_lat_fmt(void *data, int size __unused) |
2619 | { | |
2620 | unsigned int lat_flags; | |
2621 | unsigned int pc; | |
2622 | int lock_depth; | |
2623 | int hardirq; | |
2624 | int softirq; | |
2625 | ||
2626 | lat_flags = parse_common_flags(data); | |
2627 | pc = parse_common_pc(data); | |
2628 | lock_depth = parse_common_lock_depth(data); | |
2629 | ||
2630 | hardirq = lat_flags & TRACE_FLAG_HARDIRQ; | |
2631 | softirq = lat_flags & TRACE_FLAG_SOFTIRQ; | |
2632 | ||
2633 | printf("%c%c%c", | |
2634 | (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' : | |
2635 | (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ? | |
2636 | 'X' : '.', | |
2637 | (lat_flags & TRACE_FLAG_NEED_RESCHED) ? | |
2638 | 'N' : '.', | |
2639 | (hardirq && softirq) ? 'H' : | |
2640 | hardirq ? 'h' : softirq ? 's' : '.'); | |
2641 | ||
2642 | if (pc) | |
2643 | printf("%x", pc); | |
2644 | else | |
2645 | printf("."); | |
2646 | ||
2647 | if (lock_depth < 0) | |
c70c94b4 | 2648 | printf(". "); |
cda48461 | 2649 | else |
c70c94b4 | 2650 | printf("%d ", lock_depth); |
cda48461 SR |
2651 | } |
2652 | ||
ea4010d1 SR |
2653 | #define TRACE_GRAPH_INDENT 2 |
2654 | ||
ea4010d1 SR |
2655 | static struct record * |
2656 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, | |
2657 | struct record *next) | |
2658 | { | |
2659 | struct format_field *field; | |
2660 | struct event *event; | |
2661 | unsigned long val; | |
2662 | int type; | |
2663 | int pid; | |
2664 | ||
ec156764 IM |
2665 | type = trace_parse_common_type(next->data); |
2666 | event = trace_find_event(type); | |
ea4010d1 SR |
2667 | if (!event) |
2668 | return NULL; | |
2669 | ||
2670 | if (!(event->flags & EVENT_FL_ISFUNCRET)) | |
2671 | return NULL; | |
2672 | ||
16c632de | 2673 | pid = trace_parse_common_pid(next->data); |
ea4010d1 SR |
2674 | field = find_field(event, "func"); |
2675 | if (!field) | |
2676 | die("function return does not have field func"); | |
2677 | ||
2678 | val = read_size(next->data + field->offset, field->size); | |
2679 | ||
2680 | if (cur_pid != pid || cur_func != val) | |
2681 | return NULL; | |
2682 | ||
2683 | /* this is a leaf, now advance the iterator */ | |
2684 | return trace_read_data(cpu); | |
2685 | } | |
2686 | ||
2687 | /* Signal a overhead of time execution to the output */ | |
2688 | static void print_graph_overhead(unsigned long long duration) | |
2689 | { | |
2690 | /* Non nested entry or return */ | |
2691 | if (duration == ~0ULL) | |
2692 | return (void)printf(" "); | |
2693 | ||
2694 | /* Duration exceeded 100 msecs */ | |
2695 | if (duration > 100000ULL) | |
2696 | return (void)printf("! "); | |
2697 | ||
2698 | /* Duration exceeded 10 msecs */ | |
2699 | if (duration > 10000ULL) | |
2700 | return (void)printf("+ "); | |
2701 | ||
2702 | printf(" "); | |
2703 | } | |
2704 | ||
2705 | static void print_graph_duration(unsigned long long duration) | |
2706 | { | |
2707 | unsigned long usecs = duration / 1000; | |
2708 | unsigned long nsecs_rem = duration % 1000; | |
2709 | /* log10(ULONG_MAX) + '\0' */ | |
2710 | char msecs_str[21]; | |
2711 | char nsecs_str[5]; | |
2712 | int len; | |
2713 | int i; | |
2714 | ||
2715 | sprintf(msecs_str, "%lu", usecs); | |
2716 | ||
2717 | /* Print msecs */ | |
2718 | len = printf("%lu", usecs); | |
2719 | ||
2720 | /* Print nsecs (we don't want to exceed 7 numbers) */ | |
2721 | if (len < 7) { | |
2722 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); | |
2723 | len += printf(".%s", nsecs_str); | |
2724 | } | |
2725 | ||
2726 | printf(" us "); | |
2727 | ||
2728 | /* Print remaining spaces to fit the row's width */ | |
2729 | for (i = len; i < 7; i++) | |
2730 | printf(" "); | |
2731 | ||
2732 | printf("| "); | |
2733 | } | |
2734 | ||
2735 | static void | |
2736 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) | |
2737 | { | |
2738 | unsigned long long rettime, calltime; | |
2739 | unsigned long long duration, depth; | |
2740 | unsigned long long val; | |
2741 | struct format_field *field; | |
2742 | struct func_map *func; | |
2743 | struct event *ret_event; | |
2744 | int type; | |
2745 | int i; | |
2746 | ||
ec156764 IM |
2747 | type = trace_parse_common_type(ret_rec->data); |
2748 | ret_event = trace_find_event(type); | |
ea4010d1 SR |
2749 | |
2750 | field = find_field(ret_event, "rettime"); | |
2751 | if (!field) | |
2752 | die("can't find rettime in return graph"); | |
2753 | rettime = read_size(ret_rec->data + field->offset, field->size); | |
2754 | ||
2755 | field = find_field(ret_event, "calltime"); | |
2756 | if (!field) | |
2757 | die("can't find rettime in return graph"); | |
2758 | calltime = read_size(ret_rec->data + field->offset, field->size); | |
2759 | ||
2760 | duration = rettime - calltime; | |
2761 | ||
2762 | /* Overhead */ | |
2763 | print_graph_overhead(duration); | |
2764 | ||
2765 | /* Duration */ | |
2766 | print_graph_duration(duration); | |
2767 | ||
2768 | field = find_field(event, "depth"); | |
2769 | if (!field) | |
2770 | die("can't find depth in entry graph"); | |
2771 | depth = read_size(data + field->offset, field->size); | |
2772 | ||
2773 | /* Function */ | |
2774 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2775 | printf(" "); | |
2776 | ||
2777 | field = find_field(event, "func"); | |
2778 | if (!field) | |
2779 | die("can't find func in entry graph"); | |
2780 | val = read_size(data + field->offset, field->size); | |
2781 | func = find_func(val); | |
2782 | ||
2783 | if (func) | |
2784 | printf("%s();", func->func); | |
2785 | else | |
2786 | printf("%llx();", val); | |
2787 | } | |
2788 | ||
2789 | static void print_graph_nested(struct event *event, void *data) | |
2790 | { | |
2791 | struct format_field *field; | |
2792 | unsigned long long depth; | |
2793 | unsigned long long val; | |
2794 | struct func_map *func; | |
2795 | int i; | |
2796 | ||
2797 | /* No overhead */ | |
2798 | print_graph_overhead(-1); | |
2799 | ||
2800 | /* No time */ | |
2801 | printf(" | "); | |
2802 | ||
2803 | field = find_field(event, "depth"); | |
2804 | if (!field) | |
2805 | die("can't find depth in entry graph"); | |
2806 | depth = read_size(data + field->offset, field->size); | |
2807 | ||
2808 | /* Function */ | |
2809 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2810 | printf(" "); | |
2811 | ||
2812 | field = find_field(event, "func"); | |
2813 | if (!field) | |
2814 | die("can't find func in entry graph"); | |
2815 | val = read_size(data + field->offset, field->size); | |
2816 | func = find_func(val); | |
2817 | ||
2818 | if (func) | |
2819 | printf("%s() {", func->func); | |
2820 | else | |
2821 | printf("%llx() {", val); | |
2822 | } | |
2823 | ||
2824 | static void | |
2825 | pretty_print_func_ent(void *data, int size, struct event *event, | |
c70c94b4 | 2826 | int cpu, int pid) |
ea4010d1 SR |
2827 | { |
2828 | struct format_field *field; | |
2829 | struct record *rec; | |
2830 | void *copy_data; | |
2831 | unsigned long val; | |
2832 | ||
cda48461 SR |
2833 | if (latency_format) { |
2834 | print_lat_fmt(data, size); | |
2835 | printf(" | "); | |
2836 | } | |
2837 | ||
ea4010d1 SR |
2838 | field = find_field(event, "func"); |
2839 | if (!field) | |
2840 | die("function entry does not have func field"); | |
2841 | ||
2842 | val = read_size(data + field->offset, field->size); | |
2843 | ||
2844 | /* | |
2845 | * peek_data may unmap the data pointer. Copy it first. | |
2846 | */ | |
2847 | copy_data = malloc_or_die(size); | |
2848 | memcpy(copy_data, data, size); | |
2849 | data = copy_data; | |
2850 | ||
2851 | rec = trace_peek_data(cpu); | |
2852 | if (rec) { | |
2853 | rec = get_return_for_leaf(cpu, pid, val, rec); | |
2854 | if (rec) { | |
2855 | print_graph_entry_leaf(event, data, rec); | |
2856 | goto out_free; | |
2857 | } | |
2858 | } | |
2859 | print_graph_nested(event, data); | |
2860 | out_free: | |
2861 | free(data); | |
2862 | } | |
2863 | ||
2864 | static void | |
c70c94b4 | 2865 | pretty_print_func_ret(void *data, int size __unused, struct event *event) |
ea4010d1 SR |
2866 | { |
2867 | unsigned long long rettime, calltime; | |
2868 | unsigned long long duration, depth; | |
2869 | struct format_field *field; | |
2870 | int i; | |
2871 | ||
cda48461 SR |
2872 | if (latency_format) { |
2873 | print_lat_fmt(data, size); | |
2874 | printf(" | "); | |
2875 | } | |
2876 | ||
ea4010d1 SR |
2877 | field = find_field(event, "rettime"); |
2878 | if (!field) | |
2879 | die("can't find rettime in return graph"); | |
2880 | rettime = read_size(data + field->offset, field->size); | |
2881 | ||
2882 | field = find_field(event, "calltime"); | |
2883 | if (!field) | |
2884 | die("can't find calltime in return graph"); | |
2885 | calltime = read_size(data + field->offset, field->size); | |
2886 | ||
2887 | duration = rettime - calltime; | |
2888 | ||
2889 | /* Overhead */ | |
2890 | print_graph_overhead(duration); | |
2891 | ||
2892 | /* Duration */ | |
2893 | print_graph_duration(duration); | |
2894 | ||
2895 | field = find_field(event, "depth"); | |
2896 | if (!field) | |
2897 | die("can't find depth in entry graph"); | |
2898 | depth = read_size(data + field->offset, field->size); | |
2899 | ||
2900 | /* Function */ | |
2901 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2902 | printf(" "); | |
2903 | ||
2904 | printf("}"); | |
2905 | } | |
2906 | ||
2907 | static void | |
2908 | pretty_print_func_graph(void *data, int size, struct event *event, | |
c70c94b4 | 2909 | int cpu, int pid) |
ea4010d1 SR |
2910 | { |
2911 | if (event->flags & EVENT_FL_ISFUNCENT) | |
c70c94b4 | 2912 | pretty_print_func_ent(data, size, event, cpu, pid); |
ea4010d1 | 2913 | else if (event->flags & EVENT_FL_ISFUNCRET) |
c70c94b4 | 2914 | pretty_print_func_ret(data, size, event); |
ea4010d1 SR |
2915 | printf("\n"); |
2916 | } | |
2917 | ||
c70c94b4 | 2918 | void print_trace_event(int cpu, void *data, int size) |
ea4010d1 SR |
2919 | { |
2920 | struct event *event; | |
ea4010d1 SR |
2921 | int type; |
2922 | int pid; | |
2923 | ||
ec156764 | 2924 | type = trace_parse_common_type(data); |
ea4010d1 | 2925 | |
ec156764 | 2926 | event = trace_find_event(type); |
ea57c4f5 | 2927 | if (!event) { |
07a4bddd | 2928 | warning("ug! no event found for type %d", type); |
ea57c4f5 IM |
2929 | return; |
2930 | } | |
ea4010d1 | 2931 | |
16c632de | 2932 | pid = trace_parse_common_pid(data); |
ea4010d1 SR |
2933 | |
2934 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) | |
c70c94b4 | 2935 | return pretty_print_func_graph(data, size, event, cpu, pid); |
ea4010d1 | 2936 | |
c70c94b4 | 2937 | if (latency_format) |
cda48461 | 2938 | print_lat_fmt(data, size); |
ea4010d1 | 2939 | |
07a4bddd SR |
2940 | if (event->flags & EVENT_FL_FAILED) { |
2941 | printf("EVENT '%s' FAILED TO PARSE\n", | |
2942 | event->name); | |
2943 | return; | |
2944 | } | |
2945 | ||
ea4010d1 | 2946 | pretty_print(data, size, event); |
ea4010d1 SR |
2947 | } |
2948 | ||
2949 | static void print_fields(struct print_flag_sym *field) | |
2950 | { | |
2951 | printf("{ %s, %s }", field->value, field->str); | |
2952 | if (field->next) { | |
2953 | printf(", "); | |
2954 | print_fields(field->next); | |
2955 | } | |
2956 | } | |
2957 | ||
2958 | static void print_args(struct print_arg *args) | |
2959 | { | |
2960 | int print_paren = 1; | |
2961 | ||
2962 | switch (args->type) { | |
2963 | case PRINT_NULL: | |
2964 | printf("null"); | |
2965 | break; | |
2966 | case PRINT_ATOM: | |
2967 | printf("%s", args->atom.atom); | |
2968 | break; | |
2969 | case PRINT_FIELD: | |
2970 | printf("REC->%s", args->field.name); | |
2971 | break; | |
2972 | case PRINT_FLAGS: | |
2973 | printf("__print_flags("); | |
2974 | print_args(args->flags.field); | |
2975 | printf(", %s, ", args->flags.delim); | |
2976 | print_fields(args->flags.flags); | |
2977 | printf(")"); | |
2978 | break; | |
2979 | case PRINT_SYMBOL: | |
2980 | printf("__print_symbolic("); | |
2981 | print_args(args->symbol.field); | |
2982 | printf(", "); | |
2983 | print_fields(args->symbol.symbols); | |
2984 | printf(")"); | |
2985 | break; | |
2986 | case PRINT_STRING: | |
2987 | printf("__get_str(%s)", args->string.string); | |
2988 | break; | |
2989 | case PRINT_TYPE: | |
2990 | printf("(%s)", args->typecast.type); | |
2991 | print_args(args->typecast.item); | |
2992 | break; | |
2993 | case PRINT_OP: | |
2994 | if (strcmp(args->op.op, ":") == 0) | |
2995 | print_paren = 0; | |
2996 | if (print_paren) | |
2997 | printf("("); | |
2998 | print_args(args->op.left); | |
2999 | printf(" %s ", args->op.op); | |
3000 | print_args(args->op.right); | |
3001 | if (print_paren) | |
3002 | printf(")"); | |
3003 | break; | |
3004 | default: | |
3005 | /* we should warn... */ | |
3006 | return; | |
3007 | } | |
3008 | if (args->next) { | |
3009 | printf("\n"); | |
3010 | print_args(args->next); | |
3011 | } | |
3012 | } | |
3013 | ||
ea4010d1 SR |
3014 | int parse_ftrace_file(char *buf, unsigned long size) |
3015 | { | |
3016 | struct format_field *field; | |
3017 | struct print_arg *arg, **list; | |
3018 | struct event *event; | |
3019 | int ret; | |
3020 | ||
3021 | init_input_buf(buf, size); | |
3022 | ||
3023 | event = alloc_event(); | |
3024 | if (!event) | |
3025 | return -ENOMEM; | |
3026 | ||
3027 | event->flags |= EVENT_FL_ISFTRACE; | |
3028 | ||
3029 | event->name = event_read_name(); | |
3030 | if (!event->name) | |
3031 | die("failed to read ftrace event name"); | |
3032 | ||
3033 | if (strcmp(event->name, "function") == 0) | |
3034 | event->flags |= EVENT_FL_ISFUNC; | |
3035 | ||
3036 | else if (strcmp(event->name, "funcgraph_entry") == 0) | |
3037 | event->flags |= EVENT_FL_ISFUNCENT; | |
3038 | ||
3039 | else if (strcmp(event->name, "funcgraph_exit") == 0) | |
3040 | event->flags |= EVENT_FL_ISFUNCRET; | |
3041 | ||
3042 | else if (strcmp(event->name, "bprint") == 0) | |
3043 | event->flags |= EVENT_FL_ISBPRINT; | |
3044 | ||
3045 | event->id = event_read_id(); | |
3046 | if (event->id < 0) | |
3047 | die("failed to read ftrace event id"); | |
3048 | ||
3049 | add_event(event); | |
3050 | ||
3051 | ret = event_read_format(event); | |
3052 | if (ret < 0) | |
3053 | die("failed to read ftrace event format"); | |
3054 | ||
3055 | ret = event_read_print(event); | |
3056 | if (ret < 0) | |
3057 | die("failed to read ftrace event print fmt"); | |
3058 | ||
0d1da915 SR |
3059 | /* New ftrace handles args */ |
3060 | if (ret > 0) | |
3061 | return 0; | |
ea4010d1 SR |
3062 | /* |
3063 | * The arguments for ftrace files are parsed by the fields. | |
3064 | * Set up the fields as their arguments. | |
3065 | */ | |
3066 | list = &event->print_fmt.args; | |
3067 | for (field = event->format.fields; field; field = field->next) { | |
3068 | arg = malloc_or_die(sizeof(*arg)); | |
3069 | memset(arg, 0, sizeof(*arg)); | |
3070 | *list = arg; | |
3071 | list = &arg->next; | |
3072 | arg->type = PRINT_FIELD; | |
3073 | arg->field.name = field->name; | |
3074 | arg->field.field = field; | |
3075 | } | |
3076 | return 0; | |
3077 | } | |
3078 | ||
27746018 | 3079 | int parse_event_file(char *buf, unsigned long size, char *sys) |
ea4010d1 SR |
3080 | { |
3081 | struct event *event; | |
3082 | int ret; | |
3083 | ||
3084 | init_input_buf(buf, size); | |
3085 | ||
3086 | event = alloc_event(); | |
3087 | if (!event) | |
3088 | return -ENOMEM; | |
3089 | ||
3090 | event->name = event_read_name(); | |
3091 | if (!event->name) | |
3092 | die("failed to read event name"); | |
3093 | ||
3094 | event->id = event_read_id(); | |
3095 | if (event->id < 0) | |
3096 | die("failed to read event id"); | |
3097 | ||
3098 | ret = event_read_format(event); | |
07a4bddd SR |
3099 | if (ret < 0) { |
3100 | warning("failed to read event format for %s", event->name); | |
3101 | goto event_failed; | |
3102 | } | |
ea4010d1 SR |
3103 | |
3104 | ret = event_read_print(event); | |
07a4bddd SR |
3105 | if (ret < 0) { |
3106 | warning("failed to read event print fmt for %s", event->name); | |
3107 | goto event_failed; | |
3108 | } | |
ea4010d1 | 3109 | |
27746018 TZ |
3110 | event->system = strdup(sys); |
3111 | ||
ea4010d1 SR |
3112 | #define PRINT_ARGS 0 |
3113 | if (PRINT_ARGS && event->print_fmt.args) | |
3114 | print_args(event->print_fmt.args); | |
3115 | ||
3116 | add_event(event); | |
3117 | return 0; | |
07a4bddd SR |
3118 | |
3119 | event_failed: | |
3120 | event->flags |= EVENT_FL_FAILED; | |
3121 | /* still add it even if it failed */ | |
3122 | add_event(event); | |
3123 | return -1; | |
ea4010d1 SR |
3124 | } |
3125 | ||
3126 | void parse_set_info(int nr_cpus, int long_sz) | |
3127 | { | |
3128 | cpus = nr_cpus; | |
3129 | long_size = long_sz; | |
3130 | } | |
7397d80d TZ |
3131 | |
3132 | int common_pc(struct scripting_context *context) | |
3133 | { | |
3134 | return parse_common_pc(context->event_data); | |
3135 | } | |
3136 | ||
3137 | int common_flags(struct scripting_context *context) | |
3138 | { | |
3139 | return parse_common_flags(context->event_data); | |
3140 | } | |
3141 | ||
3142 | int common_lock_depth(struct scripting_context *context) | |
3143 | { | |
3144 | return parse_common_lock_depth(context->event_data); | |
3145 | } |