Commit | Line | Data |
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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; | |
40 | int header_page_data_offset; | |
41 | int header_page_data_size; | |
42 | ||
43 | static char *input_buf; | |
44 | static unsigned long long input_buf_ptr; | |
45 | static unsigned long long input_buf_siz; | |
46 | ||
47 | static int cpus; | |
48 | static int long_size; | |
49 | ||
50 | static void init_input_buf(char *buf, unsigned long long size) | |
51 | { | |
52 | input_buf = buf; | |
53 | input_buf_siz = size; | |
54 | input_buf_ptr = 0; | |
55 | } | |
56 | ||
57 | struct cmdline { | |
58 | char *comm; | |
59 | int pid; | |
60 | }; | |
61 | ||
62 | static struct cmdline *cmdlines; | |
63 | static int cmdline_count; | |
64 | ||
65 | static int cmdline_cmp(const void *a, const void *b) | |
66 | { | |
67 | const struct cmdline *ca = a; | |
68 | const struct cmdline *cb = b; | |
69 | ||
70 | if (ca->pid < cb->pid) | |
71 | return -1; | |
72 | if (ca->pid > cb->pid) | |
73 | return 1; | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | void parse_cmdlines(char *file, int size __unused) | |
79 | { | |
80 | struct cmdline_list { | |
81 | struct cmdline_list *next; | |
82 | char *comm; | |
83 | int pid; | |
84 | } *list = NULL, *item; | |
85 | char *line; | |
86 | char *next = NULL; | |
87 | int i; | |
88 | ||
89 | line = strtok_r(file, "\n", &next); | |
90 | while (line) { | |
91 | item = malloc_or_die(sizeof(*item)); | |
92 | sscanf(line, "%d %as", &item->pid, | |
93 | (float *)&item->comm); /* workaround gcc warning */ | |
94 | item->next = list; | |
95 | list = item; | |
96 | line = strtok_r(NULL, "\n", &next); | |
97 | cmdline_count++; | |
98 | } | |
99 | ||
100 | cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); | |
101 | ||
102 | i = 0; | |
103 | while (list) { | |
104 | cmdlines[i].pid = list->pid; | |
105 | cmdlines[i].comm = list->comm; | |
106 | i++; | |
107 | item = list; | |
108 | list = list->next; | |
109 | free(item); | |
110 | } | |
111 | ||
112 | qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); | |
113 | } | |
114 | ||
115 | static struct func_map { | |
116 | unsigned long long addr; | |
117 | char *func; | |
118 | char *mod; | |
119 | } *func_list; | |
120 | static unsigned int func_count; | |
121 | ||
122 | static int func_cmp(const void *a, const void *b) | |
123 | { | |
124 | const struct func_map *fa = a; | |
125 | const struct func_map *fb = b; | |
126 | ||
127 | if (fa->addr < fb->addr) | |
128 | return -1; | |
129 | if (fa->addr > fb->addr) | |
130 | return 1; | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | void parse_proc_kallsyms(char *file, unsigned int size __unused) | |
136 | { | |
137 | struct func_list { | |
138 | struct func_list *next; | |
139 | unsigned long long addr; | |
140 | char *func; | |
141 | char *mod; | |
142 | } *list = NULL, *item; | |
143 | char *line; | |
144 | char *next = NULL; | |
145 | char *addr_str; | |
146 | char ch; | |
147 | int ret; | |
148 | int i; | |
149 | ||
150 | line = strtok_r(file, "\n", &next); | |
151 | while (line) { | |
152 | item = malloc_or_die(sizeof(*item)); | |
153 | item->mod = NULL; | |
154 | ret = sscanf(line, "%as %c %as\t[%as", | |
155 | (float *)&addr_str, /* workaround gcc warning */ | |
156 | &ch, | |
157 | (float *)&item->func, | |
158 | (float *)&item->mod); | |
159 | item->addr = strtoull(addr_str, NULL, 16); | |
160 | free(addr_str); | |
161 | ||
162 | /* truncate the extra ']' */ | |
163 | if (item->mod) | |
164 | item->mod[strlen(item->mod) - 1] = 0; | |
165 | ||
166 | ||
167 | item->next = list; | |
168 | list = item; | |
169 | line = strtok_r(NULL, "\n", &next); | |
170 | func_count++; | |
171 | } | |
172 | ||
173 | func_list = malloc_or_die(sizeof(*func_list) * func_count + 1); | |
174 | ||
175 | i = 0; | |
176 | while (list) { | |
177 | func_list[i].func = list->func; | |
178 | func_list[i].addr = list->addr; | |
179 | func_list[i].mod = list->mod; | |
180 | i++; | |
181 | item = list; | |
182 | list = list->next; | |
183 | free(item); | |
184 | } | |
185 | ||
186 | qsort(func_list, func_count, sizeof(*func_list), func_cmp); | |
187 | ||
188 | /* | |
189 | * Add a special record at the end. | |
190 | */ | |
191 | func_list[func_count].func = NULL; | |
192 | func_list[func_count].addr = 0; | |
193 | func_list[func_count].mod = NULL; | |
194 | } | |
195 | ||
196 | /* | |
197 | * We are searching for a record in between, not an exact | |
198 | * match. | |
199 | */ | |
200 | static int func_bcmp(const void *a, const void *b) | |
201 | { | |
202 | const struct func_map *fa = a; | |
203 | const struct func_map *fb = b; | |
204 | ||
205 | if ((fa->addr == fb->addr) || | |
206 | ||
207 | (fa->addr > fb->addr && | |
208 | fa->addr < (fb+1)->addr)) | |
209 | return 0; | |
210 | ||
211 | if (fa->addr < fb->addr) | |
212 | return -1; | |
213 | ||
214 | return 1; | |
215 | } | |
216 | ||
217 | static struct func_map *find_func(unsigned long long addr) | |
218 | { | |
219 | struct func_map *func; | |
220 | struct func_map key; | |
221 | ||
222 | key.addr = addr; | |
223 | ||
224 | func = bsearch(&key, func_list, func_count, sizeof(*func_list), | |
225 | func_bcmp); | |
226 | ||
227 | return func; | |
228 | } | |
229 | ||
230 | void print_funcs(void) | |
231 | { | |
232 | int i; | |
233 | ||
234 | for (i = 0; i < (int)func_count; i++) { | |
235 | printf("%016llx %s", | |
236 | func_list[i].addr, | |
237 | func_list[i].func); | |
238 | if (func_list[i].mod) | |
239 | printf(" [%s]\n", func_list[i].mod); | |
240 | else | |
241 | printf("\n"); | |
242 | } | |
243 | } | |
244 | ||
245 | static struct printk_map { | |
246 | unsigned long long addr; | |
247 | char *printk; | |
248 | } *printk_list; | |
249 | static unsigned int printk_count; | |
250 | ||
251 | static int printk_cmp(const void *a, const void *b) | |
252 | { | |
253 | const struct func_map *fa = a; | |
254 | const struct func_map *fb = b; | |
255 | ||
256 | if (fa->addr < fb->addr) | |
257 | return -1; | |
258 | if (fa->addr > fb->addr) | |
259 | return 1; | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static struct printk_map *find_printk(unsigned long long addr) | |
265 | { | |
266 | struct printk_map *printk; | |
267 | struct printk_map key; | |
268 | ||
269 | key.addr = addr; | |
270 | ||
271 | printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), | |
272 | printk_cmp); | |
273 | ||
274 | return printk; | |
275 | } | |
276 | ||
277 | void parse_ftrace_printk(char *file, unsigned int size __unused) | |
278 | { | |
279 | struct printk_list { | |
280 | struct printk_list *next; | |
281 | unsigned long long addr; | |
282 | char *printk; | |
283 | } *list = NULL, *item; | |
284 | char *line; | |
285 | char *next = NULL; | |
286 | char *addr_str; | |
287 | int ret; | |
288 | int i; | |
289 | ||
290 | line = strtok_r(file, "\n", &next); | |
291 | while (line) { | |
292 | item = malloc_or_die(sizeof(*item)); | |
293 | ret = sscanf(line, "%as : %as", | |
294 | (float *)&addr_str, /* workaround gcc warning */ | |
295 | (float *)&item->printk); | |
296 | item->addr = strtoull(addr_str, NULL, 16); | |
297 | free(addr_str); | |
298 | ||
299 | item->next = list; | |
300 | list = item; | |
301 | line = strtok_r(NULL, "\n", &next); | |
302 | printk_count++; | |
303 | } | |
304 | ||
305 | printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); | |
306 | ||
307 | i = 0; | |
308 | while (list) { | |
309 | printk_list[i].printk = list->printk; | |
310 | printk_list[i].addr = list->addr; | |
311 | i++; | |
312 | item = list; | |
313 | list = list->next; | |
314 | free(item); | |
315 | } | |
316 | ||
317 | qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); | |
318 | } | |
319 | ||
320 | void print_printk(void) | |
321 | { | |
322 | int i; | |
323 | ||
324 | for (i = 0; i < (int)printk_count; i++) { | |
325 | printf("%016llx %s\n", | |
326 | printk_list[i].addr, | |
327 | printk_list[i].printk); | |
328 | } | |
329 | } | |
330 | ||
331 | static struct event *alloc_event(void) | |
332 | { | |
333 | struct event *event; | |
334 | ||
335 | event = malloc_or_die(sizeof(*event)); | |
336 | memset(event, 0, sizeof(*event)); | |
337 | ||
338 | return event; | |
339 | } | |
340 | ||
341 | enum event_type { | |
342 | EVENT_ERROR, | |
343 | EVENT_NONE, | |
344 | EVENT_SPACE, | |
345 | EVENT_NEWLINE, | |
346 | EVENT_OP, | |
347 | EVENT_DELIM, | |
348 | EVENT_ITEM, | |
349 | EVENT_DQUOTE, | |
350 | EVENT_SQUOTE, | |
351 | }; | |
352 | ||
353 | static struct event *event_list; | |
354 | ||
355 | static void add_event(struct event *event) | |
356 | { | |
357 | event->next = event_list; | |
358 | event_list = event; | |
359 | } | |
360 | ||
361 | static int event_item_type(enum event_type type) | |
362 | { | |
363 | switch (type) { | |
364 | case EVENT_ITEM ... EVENT_SQUOTE: | |
365 | return 1; | |
366 | case EVENT_ERROR ... EVENT_DELIM: | |
367 | default: | |
368 | return 0; | |
369 | } | |
370 | } | |
371 | ||
372 | static void free_arg(struct print_arg *arg) | |
373 | { | |
374 | if (!arg) | |
375 | return; | |
376 | ||
377 | switch (arg->type) { | |
378 | case PRINT_ATOM: | |
379 | if (arg->atom.atom) | |
380 | free(arg->atom.atom); | |
381 | break; | |
382 | case PRINT_NULL: | |
383 | case PRINT_FIELD ... PRINT_OP: | |
384 | default: | |
385 | /* todo */ | |
386 | break; | |
387 | } | |
388 | ||
389 | free(arg); | |
390 | } | |
391 | ||
392 | static enum event_type get_type(int ch) | |
393 | { | |
394 | if (ch == '\n') | |
395 | return EVENT_NEWLINE; | |
396 | if (isspace(ch)) | |
397 | return EVENT_SPACE; | |
398 | if (isalnum(ch) || ch == '_') | |
399 | return EVENT_ITEM; | |
400 | if (ch == '\'') | |
401 | return EVENT_SQUOTE; | |
402 | if (ch == '"') | |
403 | return EVENT_DQUOTE; | |
404 | if (!isprint(ch)) | |
405 | return EVENT_NONE; | |
406 | if (ch == '(' || ch == ')' || ch == ',') | |
407 | return EVENT_DELIM; | |
408 | ||
409 | return EVENT_OP; | |
410 | } | |
411 | ||
412 | static int __read_char(void) | |
413 | { | |
414 | if (input_buf_ptr >= input_buf_siz) | |
415 | return -1; | |
416 | ||
417 | return input_buf[input_buf_ptr++]; | |
418 | } | |
419 | ||
420 | static int __peek_char(void) | |
421 | { | |
422 | if (input_buf_ptr >= input_buf_siz) | |
423 | return -1; | |
424 | ||
425 | return input_buf[input_buf_ptr]; | |
426 | } | |
427 | ||
428 | static enum event_type __read_token(char **tok) | |
429 | { | |
430 | char buf[BUFSIZ]; | |
431 | int ch, last_ch, quote_ch, next_ch; | |
432 | int i = 0; | |
433 | int tok_size = 0; | |
434 | enum event_type type; | |
435 | ||
436 | *tok = NULL; | |
437 | ||
438 | ||
439 | ch = __read_char(); | |
440 | if (ch < 0) | |
441 | return EVENT_NONE; | |
442 | ||
443 | type = get_type(ch); | |
444 | if (type == EVENT_NONE) | |
445 | return type; | |
446 | ||
447 | buf[i++] = ch; | |
448 | ||
449 | switch (type) { | |
450 | case EVENT_NEWLINE: | |
451 | case EVENT_DELIM: | |
452 | *tok = malloc_or_die(2); | |
453 | (*tok)[0] = ch; | |
454 | (*tok)[1] = 0; | |
455 | return type; | |
456 | ||
457 | case EVENT_OP: | |
458 | switch (ch) { | |
459 | case '-': | |
460 | next_ch = __peek_char(); | |
461 | if (next_ch == '>') { | |
462 | buf[i++] = __read_char(); | |
463 | break; | |
464 | } | |
465 | /* fall through */ | |
466 | case '+': | |
467 | case '|': | |
468 | case '&': | |
469 | case '>': | |
470 | case '<': | |
471 | last_ch = ch; | |
472 | ch = __peek_char(); | |
473 | if (ch != last_ch) | |
474 | goto test_equal; | |
475 | buf[i++] = __read_char(); | |
476 | switch (last_ch) { | |
477 | case '>': | |
478 | case '<': | |
479 | goto test_equal; | |
480 | default: | |
481 | break; | |
482 | } | |
483 | break; | |
484 | case '!': | |
485 | case '=': | |
486 | goto test_equal; | |
487 | default: /* what should we do instead? */ | |
488 | break; | |
489 | } | |
490 | buf[i] = 0; | |
491 | *tok = strdup(buf); | |
492 | return type; | |
493 | ||
494 | test_equal: | |
495 | ch = __peek_char(); | |
496 | if (ch == '=') | |
497 | buf[i++] = __read_char(); | |
498 | break; | |
499 | ||
500 | case EVENT_DQUOTE: | |
501 | case EVENT_SQUOTE: | |
502 | /* don't keep quotes */ | |
503 | i--; | |
504 | quote_ch = ch; | |
505 | last_ch = 0; | |
506 | do { | |
507 | if (i == (BUFSIZ - 1)) { | |
508 | buf[i] = 0; | |
509 | if (*tok) { | |
510 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
511 | if (!*tok) | |
512 | return EVENT_NONE; | |
513 | strcat(*tok, buf); | |
514 | } else | |
515 | *tok = strdup(buf); | |
516 | ||
517 | if (!*tok) | |
518 | return EVENT_NONE; | |
519 | tok_size += BUFSIZ; | |
520 | i = 0; | |
521 | } | |
522 | last_ch = ch; | |
523 | ch = __read_char(); | |
524 | buf[i++] = ch; | |
525 | } while (ch != quote_ch && last_ch != '\\'); | |
526 | /* remove the last quote */ | |
527 | i--; | |
528 | goto out; | |
529 | ||
530 | case EVENT_ERROR ... EVENT_SPACE: | |
531 | case EVENT_ITEM: | |
532 | default: | |
533 | break; | |
534 | } | |
535 | ||
536 | while (get_type(__peek_char()) == type) { | |
537 | if (i == (BUFSIZ - 1)) { | |
538 | buf[i] = 0; | |
539 | if (*tok) { | |
540 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
541 | if (!*tok) | |
542 | return EVENT_NONE; | |
543 | strcat(*tok, buf); | |
544 | } else | |
545 | *tok = strdup(buf); | |
546 | ||
547 | if (!*tok) | |
548 | return EVENT_NONE; | |
549 | tok_size += BUFSIZ; | |
550 | i = 0; | |
551 | } | |
552 | ch = __read_char(); | |
553 | buf[i++] = ch; | |
554 | } | |
555 | ||
556 | out: | |
557 | buf[i] = 0; | |
558 | if (*tok) { | |
559 | *tok = realloc(*tok, tok_size + i); | |
560 | if (!*tok) | |
561 | return EVENT_NONE; | |
562 | strcat(*tok, buf); | |
563 | } else | |
564 | *tok = strdup(buf); | |
565 | if (!*tok) | |
566 | return EVENT_NONE; | |
567 | ||
568 | return type; | |
569 | } | |
570 | ||
571 | static void free_token(char *tok) | |
572 | { | |
573 | if (tok) | |
574 | free(tok); | |
575 | } | |
576 | ||
577 | static enum event_type read_token(char **tok) | |
578 | { | |
579 | enum event_type type; | |
580 | ||
581 | for (;;) { | |
582 | type = __read_token(tok); | |
583 | if (type != EVENT_SPACE) | |
584 | return type; | |
585 | ||
586 | free_token(*tok); | |
587 | } | |
588 | ||
589 | /* not reached */ | |
590 | return EVENT_NONE; | |
591 | } | |
592 | ||
593 | /* no newline */ | |
594 | static enum event_type read_token_item(char **tok) | |
595 | { | |
596 | enum event_type type; | |
597 | ||
598 | for (;;) { | |
599 | type = __read_token(tok); | |
600 | if (type != EVENT_SPACE && type != EVENT_NEWLINE) | |
601 | return type; | |
602 | ||
603 | free_token(*tok); | |
604 | } | |
605 | ||
606 | /* not reached */ | |
607 | return EVENT_NONE; | |
608 | } | |
609 | ||
610 | static int test_type(enum event_type type, enum event_type expect) | |
611 | { | |
612 | if (type != expect) { | |
613 | die("Error: expected type %d but read %d", | |
614 | expect, type); | |
615 | return -1; | |
616 | } | |
617 | return 0; | |
618 | } | |
619 | ||
620 | static int test_type_token(enum event_type type, char *token, | |
621 | enum event_type expect, char *expect_tok) | |
622 | { | |
623 | if (type != expect) { | |
624 | die("Error: expected type %d but read %d", | |
625 | expect, type); | |
626 | return -1; | |
627 | } | |
628 | ||
629 | if (strcmp(token, expect_tok) != 0) { | |
630 | die("Error: expected '%s' but read '%s'", | |
631 | expect_tok, token); | |
632 | return -1; | |
633 | } | |
634 | return 0; | |
635 | } | |
636 | ||
637 | static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) | |
638 | { | |
639 | enum event_type type; | |
640 | ||
641 | if (newline_ok) | |
642 | type = read_token(tok); | |
643 | else | |
644 | type = read_token_item(tok); | |
645 | return test_type(type, expect); | |
646 | } | |
647 | ||
648 | static int read_expect_type(enum event_type expect, char **tok) | |
649 | { | |
650 | return __read_expect_type(expect, tok, 1); | |
651 | } | |
652 | ||
653 | static int __read_expected(enum event_type expect, char *str, int newline_ok) | |
654 | { | |
655 | enum event_type type; | |
656 | char *token; | |
657 | int ret; | |
658 | ||
659 | if (newline_ok) | |
660 | type = read_token(&token); | |
661 | else | |
662 | type = read_token_item(&token); | |
663 | ||
664 | ret = test_type_token(type, token, expect, str); | |
665 | ||
666 | free_token(token); | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
671 | static int read_expected(enum event_type expect, char *str) | |
672 | { | |
673 | return __read_expected(expect, str, 1); | |
674 | } | |
675 | ||
676 | static int read_expected_item(enum event_type expect, char *str) | |
677 | { | |
678 | return __read_expected(expect, str, 0); | |
679 | } | |
680 | ||
681 | static char *event_read_name(void) | |
682 | { | |
683 | char *token; | |
684 | ||
685 | if (read_expected(EVENT_ITEM, (char *)"name") < 0) | |
686 | return NULL; | |
687 | ||
688 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
689 | return NULL; | |
690 | ||
691 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
692 | goto fail; | |
693 | ||
694 | return token; | |
695 | ||
696 | fail: | |
697 | free_token(token); | |
698 | return NULL; | |
699 | } | |
700 | ||
701 | static int event_read_id(void) | |
702 | { | |
703 | char *token; | |
704 | int id; | |
705 | ||
706 | if (read_expected_item(EVENT_ITEM, (char *)"ID") < 0) | |
707 | return -1; | |
708 | ||
709 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
710 | return -1; | |
711 | ||
712 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
713 | goto fail; | |
714 | ||
715 | id = strtoul(token, NULL, 0); | |
716 | free_token(token); | |
717 | return id; | |
718 | ||
719 | fail: | |
720 | free_token(token); | |
721 | return -1; | |
722 | } | |
723 | ||
724 | static int event_read_fields(struct event *event, struct format_field **fields) | |
725 | { | |
726 | struct format_field *field = NULL; | |
727 | enum event_type type; | |
728 | char *token; | |
729 | char *last_token; | |
730 | int count = 0; | |
731 | ||
732 | do { | |
733 | type = read_token(&token); | |
734 | if (type == EVENT_NEWLINE) { | |
735 | free_token(token); | |
736 | return count; | |
737 | } | |
738 | ||
739 | count++; | |
740 | ||
741 | if (test_type_token(type, token, EVENT_ITEM, (char *)"field")) | |
742 | goto fail; | |
743 | free_token(token); | |
744 | ||
745 | type = read_token(&token); | |
746 | /* | |
747 | * The ftrace fields may still use the "special" name. | |
748 | * Just ignore it. | |
749 | */ | |
750 | if (event->flags & EVENT_FL_ISFTRACE && | |
751 | type == EVENT_ITEM && strcmp(token, "special") == 0) { | |
752 | free_token(token); | |
753 | type = read_token(&token); | |
754 | } | |
755 | ||
756 | if (test_type_token(type, token, EVENT_OP, (char *)":") < 0) | |
757 | return -1; | |
758 | ||
759 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
760 | goto fail; | |
761 | ||
762 | last_token = token; | |
763 | ||
764 | field = malloc_or_die(sizeof(*field)); | |
765 | memset(field, 0, sizeof(*field)); | |
766 | ||
767 | /* read the rest of the type */ | |
768 | for (;;) { | |
769 | type = read_token(&token); | |
770 | if (type == EVENT_ITEM || | |
771 | (type == EVENT_OP && strcmp(token, "*") == 0) || | |
772 | /* | |
773 | * Some of the ftrace fields are broken and have | |
774 | * an illegal "." in them. | |
775 | */ | |
776 | (event->flags & EVENT_FL_ISFTRACE && | |
777 | type == EVENT_OP && strcmp(token, ".") == 0)) { | |
778 | ||
779 | if (strcmp(token, "*") == 0) | |
780 | field->flags |= FIELD_IS_POINTER; | |
781 | ||
782 | if (field->type) { | |
783 | field->type = realloc(field->type, | |
784 | strlen(field->type) + | |
785 | strlen(last_token) + 2); | |
786 | strcat(field->type, " "); | |
787 | strcat(field->type, last_token); | |
788 | } else | |
789 | field->type = last_token; | |
790 | last_token = token; | |
791 | continue; | |
792 | } | |
793 | ||
794 | break; | |
795 | } | |
796 | ||
797 | if (!field->type) { | |
798 | die("no type found"); | |
799 | goto fail; | |
800 | } | |
801 | field->name = last_token; | |
802 | ||
803 | if (test_type(type, EVENT_OP)) | |
804 | goto fail; | |
805 | ||
806 | if (strcmp(token, "[") == 0) { | |
807 | enum event_type last_type = type; | |
808 | char *brackets = token; | |
809 | int len; | |
810 | ||
811 | field->flags |= FIELD_IS_ARRAY; | |
812 | ||
813 | type = read_token(&token); | |
814 | while (strcmp(token, "]") != 0) { | |
815 | if (last_type == EVENT_ITEM && | |
816 | type == EVENT_ITEM) | |
817 | len = 2; | |
818 | else | |
819 | len = 1; | |
820 | last_type = type; | |
821 | ||
822 | brackets = realloc(brackets, | |
823 | strlen(brackets) + | |
824 | strlen(token) + len); | |
825 | if (len == 2) | |
826 | strcat(brackets, " "); | |
827 | strcat(brackets, token); | |
828 | free_token(token); | |
829 | type = read_token(&token); | |
830 | if (type == EVENT_NONE) { | |
831 | die("failed to find token"); | |
832 | goto fail; | |
833 | } | |
834 | } | |
835 | ||
836 | free_token(token); | |
837 | ||
838 | brackets = realloc(brackets, strlen(brackets) + 2); | |
839 | strcat(brackets, "]"); | |
840 | ||
841 | /* add brackets to type */ | |
842 | ||
843 | type = read_token(&token); | |
844 | /* | |
845 | * If the next token is not an OP, then it is of | |
846 | * the format: type [] item; | |
847 | */ | |
848 | if (type == EVENT_ITEM) { | |
849 | field->type = realloc(field->type, | |
850 | strlen(field->type) + | |
851 | strlen(field->name) + | |
852 | strlen(brackets) + 2); | |
853 | strcat(field->type, " "); | |
854 | strcat(field->type, field->name); | |
855 | free_token(field->name); | |
856 | strcat(field->type, brackets); | |
857 | field->name = token; | |
858 | type = read_token(&token); | |
859 | } else { | |
860 | field->type = realloc(field->type, | |
861 | strlen(field->type) + | |
862 | strlen(brackets) + 1); | |
863 | strcat(field->type, brackets); | |
864 | } | |
865 | free(brackets); | |
866 | } | |
867 | ||
868 | if (test_type_token(type, token, EVENT_OP, (char *)";")) | |
869 | goto fail; | |
870 | free_token(token); | |
871 | ||
872 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
873 | goto fail_expect; | |
874 | ||
875 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
876 | goto fail_expect; | |
877 | ||
878 | if (read_expect_type(EVENT_ITEM, &token)) | |
879 | goto fail; | |
880 | field->offset = strtoul(token, NULL, 0); | |
881 | free_token(token); | |
882 | ||
883 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
884 | goto fail_expect; | |
885 | ||
886 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
887 | goto fail_expect; | |
888 | ||
889 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
890 | goto fail_expect; | |
891 | ||
892 | if (read_expect_type(EVENT_ITEM, &token)) | |
893 | goto fail; | |
894 | field->size = strtoul(token, NULL, 0); | |
895 | free_token(token); | |
896 | ||
897 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
898 | goto fail_expect; | |
899 | ||
900 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) | |
901 | goto fail; | |
902 | free_token(token); | |
903 | ||
904 | *fields = field; | |
905 | fields = &field->next; | |
906 | ||
907 | } while (1); | |
908 | ||
909 | return 0; | |
910 | ||
911 | fail: | |
912 | free_token(token); | |
913 | fail_expect: | |
914 | if (field) | |
915 | free(field); | |
916 | return -1; | |
917 | } | |
918 | ||
919 | static int event_read_format(struct event *event) | |
920 | { | |
921 | char *token; | |
922 | int ret; | |
923 | ||
924 | if (read_expected_item(EVENT_ITEM, (char *)"format") < 0) | |
925 | return -1; | |
926 | ||
927 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
928 | return -1; | |
929 | ||
930 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
931 | goto fail; | |
932 | free_token(token); | |
933 | ||
934 | ret = event_read_fields(event, &event->format.common_fields); | |
935 | if (ret < 0) | |
936 | return ret; | |
937 | event->format.nr_common = ret; | |
938 | ||
939 | ret = event_read_fields(event, &event->format.fields); | |
940 | if (ret < 0) | |
941 | return ret; | |
942 | event->format.nr_fields = ret; | |
943 | ||
944 | return 0; | |
945 | ||
946 | fail: | |
947 | free_token(token); | |
948 | return -1; | |
949 | } | |
950 | ||
951 | enum event_type | |
952 | process_arg_token(struct event *event, struct print_arg *arg, | |
953 | char **tok, enum event_type type); | |
954 | ||
955 | static enum event_type | |
956 | process_arg(struct event *event, struct print_arg *arg, char **tok) | |
957 | { | |
958 | enum event_type type; | |
959 | char *token; | |
960 | ||
961 | type = read_token(&token); | |
962 | *tok = token; | |
963 | ||
964 | return process_arg_token(event, arg, tok, type); | |
965 | } | |
966 | ||
967 | static enum event_type | |
968 | process_cond(struct event *event, struct print_arg *top, char **tok) | |
969 | { | |
970 | struct print_arg *arg, *left, *right; | |
971 | enum event_type type; | |
972 | char *token = NULL; | |
973 | ||
974 | arg = malloc_or_die(sizeof(*arg)); | |
975 | memset(arg, 0, sizeof(*arg)); | |
976 | ||
977 | left = malloc_or_die(sizeof(*left)); | |
978 | ||
979 | right = malloc_or_die(sizeof(*right)); | |
980 | ||
981 | arg->type = PRINT_OP; | |
982 | arg->op.left = left; | |
983 | arg->op.right = right; | |
984 | ||
985 | *tok = NULL; | |
986 | type = process_arg(event, left, &token); | |
987 | if (test_type_token(type, token, EVENT_OP, (char *)":")) | |
988 | goto out_free; | |
989 | ||
990 | arg->op.op = token; | |
991 | ||
992 | type = process_arg(event, right, &token); | |
993 | ||
994 | top->op.right = arg; | |
995 | ||
996 | *tok = token; | |
997 | return type; | |
998 | ||
999 | out_free: | |
1000 | free_token(*tok); | |
1001 | free(right); | |
1002 | free(left); | |
1003 | free_arg(arg); | |
1004 | return EVENT_ERROR; | |
1005 | } | |
1006 | ||
1007 | static int get_op_prio(char *op) | |
1008 | { | |
1009 | if (!op[1]) { | |
1010 | switch (op[0]) { | |
1011 | case '*': | |
1012 | case '/': | |
1013 | case '%': | |
1014 | return 6; | |
1015 | case '+': | |
1016 | case '-': | |
1017 | return 7; | |
1018 | /* '>>' and '<<' are 8 */ | |
1019 | case '<': | |
1020 | case '>': | |
1021 | return 9; | |
1022 | /* '==' and '!=' are 10 */ | |
1023 | case '&': | |
1024 | return 11; | |
1025 | case '^': | |
1026 | return 12; | |
1027 | case '|': | |
1028 | return 13; | |
1029 | case '?': | |
1030 | return 16; | |
1031 | default: | |
1032 | die("unknown op '%c'", op[0]); | |
1033 | return -1; | |
1034 | } | |
1035 | } else { | |
1036 | if (strcmp(op, "++") == 0 || | |
1037 | strcmp(op, "--") == 0) { | |
1038 | return 3; | |
1039 | } else if (strcmp(op, ">>") == 0 || | |
1040 | strcmp(op, "<<") == 0) { | |
1041 | return 8; | |
1042 | } else if (strcmp(op, ">=") == 0 || | |
1043 | strcmp(op, "<=") == 0) { | |
1044 | return 9; | |
1045 | } else if (strcmp(op, "==") == 0 || | |
1046 | strcmp(op, "!=") == 0) { | |
1047 | return 10; | |
1048 | } else if (strcmp(op, "&&") == 0) { | |
1049 | return 14; | |
1050 | } else if (strcmp(op, "||") == 0) { | |
1051 | return 15; | |
1052 | } else { | |
1053 | die("unknown op '%s'", op); | |
1054 | return -1; | |
1055 | } | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | static void set_op_prio(struct print_arg *arg) | |
1060 | { | |
1061 | ||
1062 | /* single ops are the greatest */ | |
1063 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { | |
1064 | arg->op.prio = 0; | |
1065 | return; | |
1066 | } | |
1067 | ||
1068 | arg->op.prio = get_op_prio(arg->op.op); | |
1069 | } | |
1070 | ||
1071 | static enum event_type | |
1072 | process_op(struct event *event, struct print_arg *arg, char **tok) | |
1073 | { | |
1074 | struct print_arg *left, *right = NULL; | |
1075 | enum event_type type; | |
1076 | char *token; | |
1077 | ||
1078 | /* the op is passed in via tok */ | |
1079 | token = *tok; | |
1080 | ||
1081 | if (arg->type == PRINT_OP && !arg->op.left) { | |
1082 | /* handle single op */ | |
1083 | if (token[1]) { | |
1084 | die("bad op token %s", token); | |
1085 | return EVENT_ERROR; | |
1086 | } | |
1087 | switch (token[0]) { | |
1088 | case '!': | |
1089 | case '+': | |
1090 | case '-': | |
1091 | break; | |
1092 | default: | |
1093 | die("bad op token %s", token); | |
1094 | return EVENT_ERROR; | |
1095 | } | |
1096 | ||
1097 | /* make an empty left */ | |
1098 | left = malloc_or_die(sizeof(*left)); | |
1099 | left->type = PRINT_NULL; | |
1100 | arg->op.left = left; | |
1101 | ||
1102 | right = malloc_or_die(sizeof(*right)); | |
1103 | arg->op.right = right; | |
1104 | ||
1105 | type = process_arg(event, right, tok); | |
1106 | ||
1107 | } else if (strcmp(token, "?") == 0) { | |
1108 | ||
1109 | left = malloc_or_die(sizeof(*left)); | |
1110 | /* copy the top arg to the left */ | |
1111 | *left = *arg; | |
1112 | ||
1113 | arg->type = PRINT_OP; | |
1114 | arg->op.op = token; | |
1115 | arg->op.left = left; | |
1116 | arg->op.prio = 0; | |
1117 | ||
1118 | type = process_cond(event, arg, tok); | |
1119 | ||
1120 | } else if (strcmp(token, ">>") == 0 || | |
1121 | strcmp(token, "<<") == 0 || | |
1122 | strcmp(token, "&") == 0 || | |
1123 | strcmp(token, "|") == 0 || | |
1124 | strcmp(token, "&&") == 0 || | |
1125 | strcmp(token, "||") == 0 || | |
1126 | strcmp(token, "-") == 0 || | |
1127 | strcmp(token, "+") == 0 || | |
1128 | strcmp(token, "*") == 0 || | |
1129 | strcmp(token, "^") == 0 || | |
1130 | strcmp(token, "/") == 0 || | |
1131 | strcmp(token, "==") == 0 || | |
1132 | strcmp(token, "!=") == 0) { | |
1133 | ||
1134 | left = malloc_or_die(sizeof(*left)); | |
1135 | ||
1136 | /* copy the top arg to the left */ | |
1137 | *left = *arg; | |
1138 | ||
1139 | arg->type = PRINT_OP; | |
1140 | arg->op.op = token; | |
1141 | arg->op.left = left; | |
1142 | ||
1143 | set_op_prio(arg); | |
1144 | ||
1145 | right = malloc_or_die(sizeof(*right)); | |
1146 | ||
1147 | type = process_arg(event, right, tok); | |
1148 | ||
1149 | arg->op.right = right; | |
1150 | ||
1151 | } else { | |
1152 | die("unknown op '%s'", token); | |
1153 | /* the arg is now the left side */ | |
1154 | return EVENT_NONE; | |
1155 | } | |
1156 | ||
1157 | ||
1158 | if (type == EVENT_OP) { | |
1159 | int prio; | |
1160 | ||
1161 | /* higher prios need to be closer to the root */ | |
1162 | prio = get_op_prio(*tok); | |
1163 | ||
1164 | if (prio > arg->op.prio) | |
1165 | return process_op(event, arg, tok); | |
1166 | ||
1167 | return process_op(event, right, tok); | |
1168 | } | |
1169 | ||
1170 | return type; | |
1171 | } | |
1172 | ||
1173 | static enum event_type | |
1174 | process_entry(struct event *event __unused, struct print_arg *arg, | |
1175 | char **tok) | |
1176 | { | |
1177 | enum event_type type; | |
1178 | char *field; | |
1179 | char *token; | |
1180 | ||
1181 | if (read_expected(EVENT_OP, (char *)"->") < 0) | |
1182 | return EVENT_ERROR; | |
1183 | ||
1184 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1185 | goto fail; | |
1186 | field = token; | |
1187 | ||
1188 | arg->type = PRINT_FIELD; | |
1189 | arg->field.name = field; | |
1190 | ||
1191 | type = read_token(&token); | |
1192 | *tok = token; | |
1193 | ||
1194 | return type; | |
1195 | ||
1196 | fail: | |
1197 | free_token(token); | |
1198 | return EVENT_ERROR; | |
1199 | } | |
1200 | ||
1201 | static char *arg_eval (struct print_arg *arg); | |
1202 | ||
1203 | static long long arg_num_eval(struct print_arg *arg) | |
1204 | { | |
1205 | long long left, right; | |
1206 | long long val = 0; | |
1207 | ||
1208 | switch (arg->type) { | |
1209 | case PRINT_ATOM: | |
1210 | val = strtoll(arg->atom.atom, NULL, 0); | |
1211 | break; | |
1212 | case PRINT_TYPE: | |
1213 | val = arg_num_eval(arg->typecast.item); | |
1214 | break; | |
1215 | case PRINT_OP: | |
1216 | switch (arg->op.op[0]) { | |
1217 | case '|': | |
1218 | left = arg_num_eval(arg->op.left); | |
1219 | right = arg_num_eval(arg->op.right); | |
1220 | if (arg->op.op[1]) | |
1221 | val = left || right; | |
1222 | else | |
1223 | val = left | right; | |
1224 | break; | |
1225 | case '&': | |
1226 | left = arg_num_eval(arg->op.left); | |
1227 | right = arg_num_eval(arg->op.right); | |
1228 | if (arg->op.op[1]) | |
1229 | val = left && right; | |
1230 | else | |
1231 | val = left & right; | |
1232 | break; | |
1233 | case '<': | |
1234 | left = arg_num_eval(arg->op.left); | |
1235 | right = arg_num_eval(arg->op.right); | |
1236 | switch (arg->op.op[1]) { | |
1237 | case 0: | |
1238 | val = left < right; | |
1239 | break; | |
1240 | case '<': | |
1241 | val = left << right; | |
1242 | break; | |
1243 | case '=': | |
1244 | val = left <= right; | |
1245 | break; | |
1246 | default: | |
1247 | die("unknown op '%s'", arg->op.op); | |
1248 | } | |
1249 | break; | |
1250 | case '>': | |
1251 | left = arg_num_eval(arg->op.left); | |
1252 | right = arg_num_eval(arg->op.right); | |
1253 | switch (arg->op.op[1]) { | |
1254 | case 0: | |
1255 | val = left > right; | |
1256 | break; | |
1257 | case '>': | |
1258 | val = left >> right; | |
1259 | break; | |
1260 | case '=': | |
1261 | val = left >= right; | |
1262 | break; | |
1263 | default: | |
1264 | die("unknown op '%s'", arg->op.op); | |
1265 | } | |
1266 | break; | |
1267 | case '=': | |
1268 | left = arg_num_eval(arg->op.left); | |
1269 | right = arg_num_eval(arg->op.right); | |
1270 | ||
1271 | if (arg->op.op[1] != '=') | |
1272 | die("unknown op '%s'", arg->op.op); | |
1273 | ||
1274 | val = left == right; | |
1275 | break; | |
1276 | case '!': | |
1277 | left = arg_num_eval(arg->op.left); | |
1278 | right = arg_num_eval(arg->op.right); | |
1279 | ||
1280 | switch (arg->op.op[1]) { | |
1281 | case '=': | |
1282 | val = left != right; | |
1283 | break; | |
1284 | default: | |
1285 | die("unknown op '%s'", arg->op.op); | |
1286 | } | |
1287 | break; | |
1288 | default: | |
1289 | die("unknown op '%s'", arg->op.op); | |
1290 | } | |
1291 | break; | |
1292 | ||
1293 | case PRINT_NULL: | |
1294 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1295 | case PRINT_STRING: | |
1296 | default: | |
1297 | die("invalid eval type %d", arg->type); | |
1298 | ||
1299 | } | |
1300 | return val; | |
1301 | } | |
1302 | ||
1303 | static char *arg_eval (struct print_arg *arg) | |
1304 | { | |
1305 | long long val; | |
1306 | static char buf[20]; | |
1307 | ||
1308 | switch (arg->type) { | |
1309 | case PRINT_ATOM: | |
1310 | return arg->atom.atom; | |
1311 | case PRINT_TYPE: | |
1312 | return arg_eval(arg->typecast.item); | |
1313 | case PRINT_OP: | |
1314 | val = arg_num_eval(arg); | |
1315 | sprintf(buf, "%lld", val); | |
1316 | return buf; | |
1317 | ||
1318 | case PRINT_NULL: | |
1319 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1320 | case PRINT_STRING: | |
1321 | default: | |
1322 | die("invalid eval type %d", arg->type); | |
1323 | break; | |
1324 | } | |
1325 | ||
1326 | return NULL; | |
1327 | } | |
1328 | ||
1329 | static enum event_type | |
1330 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) | |
1331 | { | |
1332 | enum event_type type; | |
1333 | struct print_arg *arg = NULL; | |
1334 | struct print_flag_sym *field; | |
1335 | char *token = NULL; | |
1336 | char *value; | |
1337 | ||
1338 | do { | |
1339 | free_token(token); | |
1340 | type = read_token_item(&token); | |
1341 | if (test_type_token(type, token, EVENT_OP, (char *)"{")) | |
1342 | break; | |
1343 | ||
1344 | arg = malloc_or_die(sizeof(*arg)); | |
1345 | ||
1346 | free_token(token); | |
1347 | type = process_arg(event, arg, &token); | |
1348 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1349 | goto out_free; | |
1350 | ||
1351 | field = malloc_or_die(sizeof(*field)); | |
1352 | memset(field, 0, sizeof(field)); | |
1353 | ||
1354 | value = arg_eval(arg); | |
1355 | field->value = strdup(value); | |
1356 | ||
1357 | free_token(token); | |
1358 | type = process_arg(event, arg, &token); | |
1359 | if (test_type_token(type, token, EVENT_OP, (char *)"}")) | |
1360 | goto out_free; | |
1361 | ||
1362 | value = arg_eval(arg); | |
1363 | field->str = strdup(value); | |
1364 | free_arg(arg); | |
1365 | arg = NULL; | |
1366 | ||
1367 | *list = field; | |
1368 | list = &field->next; | |
1369 | ||
1370 | free_token(token); | |
1371 | type = read_token_item(&token); | |
1372 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); | |
1373 | ||
1374 | *tok = token; | |
1375 | return type; | |
1376 | ||
1377 | out_free: | |
1378 | free_arg(arg); | |
1379 | free_token(token); | |
1380 | ||
1381 | return EVENT_ERROR; | |
1382 | } | |
1383 | ||
1384 | static enum event_type | |
1385 | process_flags(struct event *event, struct print_arg *arg, char **tok) | |
1386 | { | |
1387 | struct print_arg *field; | |
1388 | enum event_type type; | |
1389 | char *token; | |
1390 | ||
1391 | memset(arg, 0, sizeof(*arg)); | |
1392 | arg->type = PRINT_FLAGS; | |
1393 | ||
1394 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1395 | return EVENT_ERROR; | |
1396 | ||
1397 | field = malloc_or_die(sizeof(*field)); | |
1398 | ||
1399 | type = process_arg(event, field, &token); | |
1400 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1401 | goto out_free; | |
1402 | ||
1403 | arg->flags.field = field; | |
1404 | ||
1405 | type = read_token_item(&token); | |
1406 | if (event_item_type(type)) { | |
1407 | arg->flags.delim = token; | |
1408 | type = read_token_item(&token); | |
1409 | } | |
1410 | ||
1411 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1412 | goto out_free; | |
1413 | ||
1414 | type = process_fields(event, &arg->flags.flags, &token); | |
1415 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1416 | goto out_free; | |
1417 | ||
1418 | free_token(token); | |
1419 | type = read_token_item(tok); | |
1420 | return type; | |
1421 | ||
1422 | out_free: | |
1423 | free_token(token); | |
1424 | return EVENT_ERROR; | |
1425 | } | |
1426 | ||
1427 | static enum event_type | |
1428 | process_symbols(struct event *event, struct print_arg *arg, char **tok) | |
1429 | { | |
1430 | struct print_arg *field; | |
1431 | enum event_type type; | |
1432 | char *token; | |
1433 | ||
1434 | memset(arg, 0, sizeof(*arg)); | |
1435 | arg->type = PRINT_SYMBOL; | |
1436 | ||
1437 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1438 | return EVENT_ERROR; | |
1439 | ||
1440 | field = malloc_or_die(sizeof(*field)); | |
1441 | ||
1442 | type = process_arg(event, field, &token); | |
1443 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1444 | goto out_free; | |
1445 | ||
1446 | arg->symbol.field = field; | |
1447 | ||
1448 | type = process_fields(event, &arg->symbol.symbols, &token); | |
1449 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1450 | goto out_free; | |
1451 | ||
1452 | free_token(token); | |
1453 | type = read_token_item(tok); | |
1454 | return type; | |
1455 | ||
1456 | out_free: | |
1457 | free_token(token); | |
1458 | return EVENT_ERROR; | |
1459 | } | |
1460 | ||
1461 | static enum event_type | |
1462 | process_paren(struct event *event, struct print_arg *arg, char **tok) | |
1463 | { | |
1464 | struct print_arg *item_arg; | |
1465 | enum event_type type; | |
3f9edc23 | 1466 | int ptr_cast = 0; |
ea4010d1 SR |
1467 | char *token; |
1468 | ||
1469 | type = process_arg(event, arg, &token); | |
1470 | ||
1471 | if (type == EVENT_ERROR) | |
1472 | return EVENT_ERROR; | |
1473 | ||
3f9edc23 FW |
1474 | if (type == EVENT_OP) { |
1475 | /* handle the ptr casts */ | |
1476 | if (!strcmp(token, "*")) { | |
1477 | /* | |
1478 | * FIXME: should we zapp whitespaces before ')' ? | |
1479 | * (may require a peek_token_item()) | |
1480 | */ | |
1481 | if (__peek_char() == ')') { | |
1482 | ptr_cast = 1; | |
1483 | free_token(token); | |
1484 | type = read_token_item(&token); | |
1485 | } | |
1486 | } | |
1487 | if (!ptr_cast) { | |
1488 | type = process_op(event, arg, &token); | |
ea4010d1 | 1489 | |
3f9edc23 FW |
1490 | if (type == EVENT_ERROR) |
1491 | return EVENT_ERROR; | |
1492 | } | |
1493 | } | |
ea4010d1 SR |
1494 | |
1495 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) { | |
1496 | free_token(token); | |
1497 | return EVENT_ERROR; | |
1498 | } | |
1499 | ||
1500 | free_token(token); | |
1501 | type = read_token_item(&token); | |
1502 | ||
1503 | /* | |
1504 | * If the next token is an item or another open paren, then | |
1505 | * this was a typecast. | |
1506 | */ | |
1507 | if (event_item_type(type) || | |
1508 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { | |
1509 | ||
1510 | /* make this a typecast and contine */ | |
1511 | ||
1512 | /* prevous must be an atom */ | |
1513 | if (arg->type != PRINT_ATOM) | |
1514 | die("previous needed to be PRINT_ATOM"); | |
1515 | ||
1516 | item_arg = malloc_or_die(sizeof(*item_arg)); | |
1517 | ||
1518 | arg->type = PRINT_TYPE; | |
3f9edc23 FW |
1519 | if (ptr_cast) { |
1520 | char *old = arg->atom.atom; | |
1521 | ||
1522 | arg->atom.atom = malloc_or_die(strlen(old + 3)); | |
1523 | sprintf(arg->atom.atom, "%s *", old); | |
1524 | free(old); | |
1525 | } | |
ea4010d1 SR |
1526 | arg->typecast.type = arg->atom.atom; |
1527 | arg->typecast.item = item_arg; | |
1528 | type = process_arg_token(event, item_arg, &token, type); | |
1529 | ||
1530 | } | |
1531 | ||
1532 | *tok = token; | |
1533 | return type; | |
1534 | } | |
1535 | ||
1536 | ||
1537 | static enum event_type | |
1538 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) | |
1539 | { | |
1540 | enum event_type type; | |
1541 | char *token; | |
1542 | ||
1543 | if (read_expected(EVENT_DELIM, (char *)"(") < 0) | |
1544 | return EVENT_ERROR; | |
1545 | ||
1546 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1547 | goto fail; | |
1548 | ||
1549 | arg->type = PRINT_STRING; | |
1550 | arg->string.string = token; | |
1551 | ||
1552 | if (read_expected(EVENT_DELIM, (char *)")") < 0) | |
1553 | return EVENT_ERROR; | |
1554 | ||
1555 | type = read_token(&token); | |
1556 | *tok = token; | |
1557 | ||
1558 | return type; | |
1559 | fail: | |
1560 | free_token(token); | |
1561 | return EVENT_ERROR; | |
1562 | } | |
1563 | ||
1564 | enum event_type | |
1565 | process_arg_token(struct event *event, struct print_arg *arg, | |
1566 | char **tok, enum event_type type) | |
1567 | { | |
1568 | char *token; | |
1569 | char *atom; | |
1570 | ||
1571 | token = *tok; | |
1572 | ||
1573 | switch (type) { | |
1574 | case EVENT_ITEM: | |
1575 | if (strcmp(token, "REC") == 0) { | |
1576 | free_token(token); | |
1577 | type = process_entry(event, arg, &token); | |
1578 | } else if (strcmp(token, "__print_flags") == 0) { | |
1579 | free_token(token); | |
1580 | type = process_flags(event, arg, &token); | |
1581 | } else if (strcmp(token, "__print_symbolic") == 0) { | |
1582 | free_token(token); | |
1583 | type = process_symbols(event, arg, &token); | |
1584 | } else if (strcmp(token, "__get_str") == 0) { | |
1585 | free_token(token); | |
1586 | type = process_str(event, arg, &token); | |
1587 | } else { | |
1588 | atom = token; | |
1589 | /* test the next token */ | |
1590 | type = read_token_item(&token); | |
1591 | ||
1592 | /* atoms can be more than one token long */ | |
1593 | while (type == EVENT_ITEM) { | |
1594 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); | |
1595 | strcat(atom, " "); | |
1596 | strcat(atom, token); | |
1597 | free_token(token); | |
1598 | type = read_token_item(&token); | |
1599 | } | |
1600 | ||
1601 | /* todo, test for function */ | |
1602 | ||
1603 | arg->type = PRINT_ATOM; | |
1604 | arg->atom.atom = atom; | |
1605 | } | |
1606 | break; | |
1607 | case EVENT_DQUOTE: | |
1608 | case EVENT_SQUOTE: | |
1609 | arg->type = PRINT_ATOM; | |
1610 | arg->atom.atom = token; | |
1611 | type = read_token_item(&token); | |
1612 | break; | |
1613 | case EVENT_DELIM: | |
1614 | if (strcmp(token, "(") == 0) { | |
1615 | free_token(token); | |
1616 | type = process_paren(event, arg, &token); | |
1617 | break; | |
1618 | } | |
1619 | case EVENT_OP: | |
1620 | /* handle single ops */ | |
1621 | arg->type = PRINT_OP; | |
1622 | arg->op.op = token; | |
1623 | arg->op.left = NULL; | |
1624 | type = process_op(event, arg, &token); | |
1625 | ||
1626 | break; | |
1627 | ||
1628 | case EVENT_ERROR ... EVENT_NEWLINE: | |
1629 | default: | |
1630 | die("unexpected type %d", type); | |
1631 | } | |
1632 | *tok = token; | |
1633 | ||
1634 | return type; | |
1635 | } | |
1636 | ||
1637 | static int event_read_print_args(struct event *event, struct print_arg **list) | |
1638 | { | |
1639 | enum event_type type; | |
1640 | struct print_arg *arg; | |
1641 | char *token; | |
1642 | int args = 0; | |
1643 | ||
1644 | do { | |
1645 | arg = malloc_or_die(sizeof(*arg)); | |
1646 | memset(arg, 0, sizeof(*arg)); | |
1647 | ||
1648 | type = process_arg(event, arg, &token); | |
1649 | ||
1650 | if (type == EVENT_ERROR) { | |
1651 | free_arg(arg); | |
1652 | return -1; | |
1653 | } | |
1654 | ||
1655 | *list = arg; | |
1656 | args++; | |
1657 | ||
1658 | if (type == EVENT_OP) { | |
1659 | type = process_op(event, arg, &token); | |
1660 | list = &arg->next; | |
1661 | continue; | |
1662 | } | |
1663 | ||
1664 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { | |
1665 | free_token(token); | |
1666 | *list = arg; | |
1667 | list = &arg->next; | |
1668 | continue; | |
1669 | } | |
1670 | break; | |
1671 | } while (type != EVENT_NONE); | |
1672 | ||
1673 | if (type != EVENT_NONE) | |
1674 | free_token(token); | |
1675 | ||
1676 | return args; | |
1677 | } | |
1678 | ||
1679 | static int event_read_print(struct event *event) | |
1680 | { | |
1681 | enum event_type type; | |
1682 | char *token; | |
1683 | int ret; | |
1684 | ||
1685 | if (read_expected_item(EVENT_ITEM, (char *)"print") < 0) | |
1686 | return -1; | |
1687 | ||
1688 | if (read_expected(EVENT_ITEM, (char *)"fmt") < 0) | |
1689 | return -1; | |
1690 | ||
1691 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
1692 | return -1; | |
1693 | ||
1694 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) | |
1695 | goto fail; | |
1696 | ||
1697 | event->print_fmt.format = token; | |
1698 | event->print_fmt.args = NULL; | |
1699 | ||
1700 | /* ok to have no arg */ | |
1701 | type = read_token_item(&token); | |
1702 | ||
1703 | if (type == EVENT_NONE) | |
1704 | return 0; | |
1705 | ||
1706 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1707 | goto fail; | |
1708 | ||
1709 | free_token(token); | |
1710 | ||
1711 | ret = event_read_print_args(event, &event->print_fmt.args); | |
1712 | if (ret < 0) | |
1713 | return -1; | |
1714 | ||
1715 | return 0; | |
1716 | ||
1717 | fail: | |
1718 | free_token(token); | |
1719 | return -1; | |
1720 | } | |
1721 | ||
1722 | static struct format_field * | |
1723 | find_common_field(struct event *event, const char *name) | |
1724 | { | |
1725 | struct format_field *format; | |
1726 | ||
1727 | for (format = event->format.common_fields; | |
1728 | format; format = format->next) { | |
1729 | if (strcmp(format->name, name) == 0) | |
1730 | break; | |
1731 | } | |
1732 | ||
1733 | return format; | |
1734 | } | |
1735 | ||
1736 | static struct format_field * | |
1737 | find_field(struct event *event, const char *name) | |
1738 | { | |
1739 | struct format_field *format; | |
1740 | ||
1741 | for (format = event->format.fields; | |
1742 | format; format = format->next) { | |
1743 | if (strcmp(format->name, name) == 0) | |
1744 | break; | |
1745 | } | |
1746 | ||
1747 | return format; | |
1748 | } | |
1749 | ||
1750 | static struct format_field * | |
1751 | find_any_field(struct event *event, const char *name) | |
1752 | { | |
1753 | struct format_field *format; | |
1754 | ||
1755 | format = find_common_field(event, name); | |
1756 | if (format) | |
1757 | return format; | |
1758 | return find_field(event, name); | |
1759 | } | |
1760 | ||
1761 | static unsigned long long read_size(void *ptr, int size) | |
1762 | { | |
1763 | switch (size) { | |
1764 | case 1: | |
1765 | return *(unsigned char *)ptr; | |
1766 | case 2: | |
1767 | return data2host2(ptr); | |
1768 | case 4: | |
1769 | return data2host4(ptr); | |
1770 | case 8: | |
1771 | return data2host8(ptr); | |
1772 | default: | |
1773 | /* BUG! */ | |
1774 | return 0; | |
1775 | } | |
1776 | } | |
1777 | ||
1778 | static int get_common_info(const char *type, int *offset, int *size) | |
1779 | { | |
1780 | struct event *event; | |
1781 | struct format_field *field; | |
1782 | ||
1783 | /* | |
1784 | * All events should have the same common elements. | |
1785 | * Pick any event to find where the type is; | |
1786 | */ | |
1787 | if (!event_list) | |
1788 | die("no event_list!"); | |
1789 | ||
1790 | event = event_list; | |
1791 | field = find_common_field(event, type); | |
1792 | if (!field) | |
1793 | die("field '%s' not found", type); | |
1794 | ||
1795 | *offset = field->offset; | |
1796 | *size = field->size; | |
1797 | ||
1798 | return 0; | |
1799 | } | |
1800 | ||
1801 | static int parse_common_type(void *data) | |
1802 | { | |
1803 | static int type_offset; | |
1804 | static int type_size; | |
1805 | int ret; | |
1806 | ||
1807 | if (!type_size) { | |
1808 | ret = get_common_info("common_type", | |
1809 | &type_offset, | |
1810 | &type_size); | |
1811 | if (ret < 0) | |
1812 | return ret; | |
1813 | } | |
1814 | return read_size(data + type_offset, type_size); | |
1815 | } | |
1816 | ||
1817 | static int parse_common_pid(void *data) | |
1818 | { | |
1819 | static int pid_offset; | |
1820 | static int pid_size; | |
1821 | int ret; | |
1822 | ||
1823 | if (!pid_size) { | |
1824 | ret = get_common_info("common_pid", | |
1825 | &pid_offset, | |
1826 | &pid_size); | |
1827 | if (ret < 0) | |
1828 | return ret; | |
1829 | } | |
1830 | ||
1831 | return read_size(data + pid_offset, pid_size); | |
1832 | } | |
1833 | ||
1834 | static struct event *find_event(int id) | |
1835 | { | |
1836 | struct event *event; | |
1837 | ||
1838 | for (event = event_list; event; event = event->next) { | |
1839 | if (event->id == id) | |
1840 | break; | |
1841 | } | |
1842 | return event; | |
1843 | } | |
1844 | ||
1845 | static unsigned long long eval_num_arg(void *data, int size, | |
1846 | struct event *event, struct print_arg *arg) | |
1847 | { | |
1848 | unsigned long long val = 0; | |
1849 | unsigned long long left, right; | |
1850 | ||
1851 | switch (arg->type) { | |
1852 | case PRINT_NULL: | |
1853 | /* ?? */ | |
1854 | return 0; | |
1855 | case PRINT_ATOM: | |
1856 | return strtoull(arg->atom.atom, NULL, 0); | |
1857 | case PRINT_FIELD: | |
1858 | if (!arg->field.field) { | |
1859 | arg->field.field = find_any_field(event, arg->field.name); | |
1860 | if (!arg->field.field) | |
1861 | die("field %s not found", arg->field.name); | |
1862 | } | |
1863 | /* must be a number */ | |
1864 | val = read_size(data + arg->field.field->offset, | |
1865 | arg->field.field->size); | |
1866 | break; | |
1867 | case PRINT_FLAGS: | |
1868 | case PRINT_SYMBOL: | |
1869 | break; | |
1870 | case PRINT_TYPE: | |
1871 | return eval_num_arg(data, size, event, arg->typecast.item); | |
1872 | case PRINT_STRING: | |
1873 | return 0; | |
1874 | break; | |
1875 | case PRINT_OP: | |
1876 | left = eval_num_arg(data, size, event, arg->op.left); | |
1877 | right = eval_num_arg(data, size, event, arg->op.right); | |
1878 | switch (arg->op.op[0]) { | |
1879 | case '|': | |
1880 | if (arg->op.op[1]) | |
1881 | val = left || right; | |
1882 | else | |
1883 | val = left | right; | |
1884 | break; | |
1885 | case '&': | |
1886 | if (arg->op.op[1]) | |
1887 | val = left && right; | |
1888 | else | |
1889 | val = left & right; | |
1890 | break; | |
1891 | case '<': | |
1892 | switch (arg->op.op[1]) { | |
1893 | case 0: | |
1894 | val = left < right; | |
1895 | break; | |
1896 | case '<': | |
1897 | val = left << right; | |
1898 | break; | |
1899 | case '=': | |
1900 | val = left <= right; | |
1901 | break; | |
1902 | default: | |
1903 | die("unknown op '%s'", arg->op.op); | |
1904 | } | |
1905 | break; | |
1906 | case '>': | |
1907 | switch (arg->op.op[1]) { | |
1908 | case 0: | |
1909 | val = left > right; | |
1910 | break; | |
1911 | case '>': | |
1912 | val = left >> right; | |
1913 | break; | |
1914 | case '=': | |
1915 | val = left >= right; | |
1916 | break; | |
1917 | default: | |
1918 | die("unknown op '%s'", arg->op.op); | |
1919 | } | |
1920 | break; | |
1921 | case '=': | |
1922 | if (arg->op.op[1] != '=') | |
1923 | die("unknown op '%s'", arg->op.op); | |
1924 | val = left == right; | |
1925 | break; | |
1926 | default: | |
1927 | die("unknown op '%s'", arg->op.op); | |
1928 | } | |
1929 | break; | |
1930 | default: /* not sure what to do there */ | |
1931 | return 0; | |
1932 | } | |
1933 | return val; | |
1934 | } | |
1935 | ||
1936 | struct flag { | |
1937 | const char *name; | |
1938 | unsigned long long value; | |
1939 | }; | |
1940 | ||
1941 | static const struct flag flags[] = { | |
1942 | { "HI_SOFTIRQ", 0 }, | |
1943 | { "TIMER_SOFTIRQ", 1 }, | |
1944 | { "NET_TX_SOFTIRQ", 2 }, | |
1945 | { "NET_RX_SOFTIRQ", 3 }, | |
1946 | { "BLOCK_SOFTIRQ", 4 }, | |
1947 | { "TASKLET_SOFTIRQ", 5 }, | |
1948 | { "SCHED_SOFTIRQ", 6 }, | |
1949 | { "HRTIMER_SOFTIRQ", 7 }, | |
1950 | { "RCU_SOFTIRQ", 8 }, | |
1951 | ||
1952 | { "HRTIMER_NORESTART", 0 }, | |
1953 | { "HRTIMER_RESTART", 1 }, | |
1954 | }; | |
1955 | ||
1956 | static unsigned long long eval_flag(const char *flag) | |
1957 | { | |
1958 | int i; | |
1959 | ||
1960 | /* | |
1961 | * Some flags in the format files do not get converted. | |
1962 | * If the flag is not numeric, see if it is something that | |
1963 | * we already know about. | |
1964 | */ | |
1965 | if (isdigit(flag[0])) | |
1966 | return strtoull(flag, NULL, 0); | |
1967 | ||
1968 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
1969 | if (strcmp(flags[i].name, flag) == 0) | |
1970 | return flags[i].value; | |
1971 | ||
1972 | return 0; | |
1973 | } | |
1974 | ||
1975 | static void print_str_arg(void *data, int size, | |
1976 | struct event *event, struct print_arg *arg) | |
1977 | { | |
1978 | struct print_flag_sym *flag; | |
1979 | unsigned long long val, fval; | |
1980 | char *str; | |
1981 | int print; | |
1982 | ||
1983 | switch (arg->type) { | |
1984 | case PRINT_NULL: | |
1985 | /* ?? */ | |
1986 | return; | |
1987 | case PRINT_ATOM: | |
1988 | printf("%s", arg->atom.atom); | |
1989 | return; | |
1990 | case PRINT_FIELD: | |
1991 | if (!arg->field.field) { | |
1992 | arg->field.field = find_any_field(event, arg->field.name); | |
1993 | if (!arg->field.field) | |
1994 | die("field %s not found", arg->field.name); | |
1995 | } | |
1996 | str = malloc_or_die(arg->field.field->size + 1); | |
1997 | memcpy(str, data + arg->field.field->offset, | |
1998 | arg->field.field->size); | |
1999 | str[arg->field.field->size] = 0; | |
2000 | free(str); | |
2001 | break; | |
2002 | case PRINT_FLAGS: | |
2003 | val = eval_num_arg(data, size, event, arg->flags.field); | |
2004 | print = 0; | |
2005 | for (flag = arg->flags.flags; flag; flag = flag->next) { | |
2006 | fval = eval_flag(flag->value); | |
2007 | if (!val && !fval) { | |
2008 | printf("%s", flag->str); | |
2009 | break; | |
2010 | } | |
2011 | if (fval && (val & fval) == fval) { | |
2012 | if (print && arg->flags.delim) | |
2013 | printf("%s", arg->flags.delim); | |
2014 | printf("%s", flag->str); | |
2015 | print = 1; | |
2016 | val &= ~fval; | |
2017 | } | |
2018 | } | |
2019 | break; | |
2020 | case PRINT_SYMBOL: | |
2021 | val = eval_num_arg(data, size, event, arg->symbol.field); | |
2022 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { | |
2023 | fval = eval_flag(flag->value); | |
2024 | if (val == fval) { | |
2025 | printf("%s", flag->str); | |
2026 | break; | |
2027 | } | |
2028 | } | |
2029 | break; | |
2030 | ||
2031 | case PRINT_TYPE: | |
2032 | break; | |
2033 | case PRINT_STRING: | |
2034 | printf("%s", arg->string.string); | |
2035 | break; | |
2036 | case PRINT_OP: | |
2037 | /* | |
2038 | * The only op for string should be ? : | |
2039 | */ | |
2040 | if (arg->op.op[0] != '?') | |
2041 | return; | |
2042 | val = eval_num_arg(data, size, event, arg->op.left); | |
2043 | if (val) | |
2044 | print_str_arg(data, size, event, arg->op.right->op.left); | |
2045 | else | |
2046 | print_str_arg(data, size, event, arg->op.right->op.right); | |
2047 | break; | |
2048 | default: | |
2049 | /* well... */ | |
2050 | break; | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) | |
2055 | { | |
2056 | static struct format_field *field, *ip_field; | |
2057 | struct print_arg *args, *arg, **next; | |
2058 | unsigned long long ip, val; | |
2059 | char *ptr; | |
2060 | void *bptr; | |
2061 | ||
2062 | if (!field) { | |
2063 | field = find_field(event, "buf"); | |
2064 | if (!field) | |
2065 | die("can't find buffer field for binary printk"); | |
2066 | ip_field = find_field(event, "ip"); | |
2067 | if (!ip_field) | |
2068 | die("can't find ip field for binary printk"); | |
2069 | } | |
2070 | ||
2071 | ip = read_size(data + ip_field->offset, ip_field->size); | |
2072 | ||
2073 | /* | |
2074 | * The first arg is the IP pointer. | |
2075 | */ | |
2076 | args = malloc_or_die(sizeof(*args)); | |
2077 | arg = args; | |
2078 | arg->next = NULL; | |
2079 | next = &arg->next; | |
2080 | ||
2081 | arg->type = PRINT_ATOM; | |
2082 | arg->atom.atom = malloc_or_die(32); | |
2083 | sprintf(arg->atom.atom, "%lld", ip); | |
2084 | ||
2085 | /* skip the first "%pf : " */ | |
2086 | for (ptr = fmt + 6, bptr = data + field->offset; | |
2087 | bptr < data + size && *ptr; ptr++) { | |
2088 | int ls = 0; | |
2089 | ||
2090 | if (*ptr == '%') { | |
2091 | process_again: | |
2092 | ptr++; | |
2093 | switch (*ptr) { | |
2094 | case '%': | |
2095 | break; | |
2096 | case 'l': | |
2097 | ls++; | |
2098 | goto process_again; | |
2099 | case 'L': | |
2100 | ls = 2; | |
2101 | goto process_again; | |
2102 | case '0' ... '9': | |
2103 | goto process_again; | |
2104 | case 'p': | |
2105 | ls = 1; | |
2106 | /* fall through */ | |
2107 | case 'd': | |
2108 | case 'u': | |
2109 | case 'x': | |
2110 | case 'i': | |
2111 | bptr = (void *)(((unsigned long)bptr + (long_size - 1)) & | |
2112 | ~(long_size - 1)); | |
2113 | switch (ls) { | |
2114 | case 0: | |
2115 | case 1: | |
2116 | ls = long_size; | |
2117 | break; | |
2118 | case 2: | |
2119 | ls = 8; | |
2120 | default: | |
2121 | break; | |
2122 | } | |
2123 | val = read_size(bptr, ls); | |
2124 | bptr += ls; | |
2125 | arg = malloc_or_die(sizeof(*arg)); | |
2126 | arg->next = NULL; | |
2127 | arg->type = PRINT_ATOM; | |
2128 | arg->atom.atom = malloc_or_die(32); | |
2129 | sprintf(arg->atom.atom, "%lld", val); | |
2130 | *next = arg; | |
2131 | next = &arg->next; | |
2132 | break; | |
2133 | case 's': | |
2134 | arg = malloc_or_die(sizeof(*arg)); | |
2135 | arg->next = NULL; | |
2136 | arg->type = PRINT_STRING; | |
2137 | arg->string.string = strdup(bptr); | |
2138 | bptr += strlen(bptr) + 1; | |
2139 | *next = arg; | |
2140 | next = &arg->next; | |
2141 | default: | |
2142 | break; | |
2143 | } | |
2144 | } | |
2145 | } | |
2146 | ||
2147 | return args; | |
2148 | } | |
2149 | ||
2150 | static void free_args(struct print_arg *args) | |
2151 | { | |
2152 | struct print_arg *next; | |
2153 | ||
2154 | while (args) { | |
2155 | next = args->next; | |
2156 | ||
2157 | if (args->type == PRINT_ATOM) | |
2158 | free(args->atom.atom); | |
2159 | else | |
2160 | free(args->string.string); | |
2161 | free(args); | |
2162 | args = next; | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | static char *get_bprint_format(void *data, int size __unused, struct event *event) | |
2167 | { | |
2168 | unsigned long long addr; | |
2169 | static struct format_field *field; | |
2170 | struct printk_map *printk; | |
2171 | char *format; | |
2172 | char *p; | |
2173 | ||
2174 | if (!field) { | |
2175 | field = find_field(event, "fmt"); | |
2176 | if (!field) | |
2177 | die("can't find format field for binary printk"); | |
2178 | printf("field->offset = %d size=%d\n", field->offset, field->size); | |
2179 | } | |
2180 | ||
2181 | addr = read_size(data + field->offset, field->size); | |
2182 | ||
2183 | printk = find_printk(addr); | |
2184 | if (!printk) { | |
2185 | format = malloc_or_die(45); | |
2186 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", | |
2187 | addr); | |
2188 | return format; | |
2189 | } | |
2190 | ||
2191 | p = printk->printk; | |
2192 | /* Remove any quotes. */ | |
2193 | if (*p == '"') | |
2194 | p++; | |
2195 | format = malloc_or_die(strlen(p) + 10); | |
2196 | sprintf(format, "%s : %s", "%pf", p); | |
2197 | /* remove ending quotes and new line since we will add one too */ | |
2198 | p = format + strlen(format) - 1; | |
2199 | if (*p == '"') | |
2200 | *p = 0; | |
2201 | ||
2202 | p -= 2; | |
2203 | if (strcmp(p, "\\n") == 0) | |
2204 | *p = 0; | |
2205 | ||
2206 | return format; | |
2207 | } | |
2208 | ||
2209 | static void pretty_print(void *data, int size, struct event *event) | |
2210 | { | |
2211 | struct print_fmt *print_fmt = &event->print_fmt; | |
2212 | struct print_arg *arg = print_fmt->args; | |
2213 | struct print_arg *args = NULL; | |
2214 | const char *ptr = print_fmt->format; | |
2215 | unsigned long long val; | |
2216 | struct func_map *func; | |
2217 | const char *saveptr; | |
2218 | char *bprint_fmt = NULL; | |
2219 | char format[32]; | |
2220 | int show_func; | |
2221 | int len; | |
2222 | int ls; | |
2223 | ||
2224 | if (event->flags & EVENT_FL_ISFUNC) | |
2225 | ptr = " %pF <-- %pF"; | |
2226 | ||
2227 | if (event->flags & EVENT_FL_ISBPRINT) { | |
2228 | bprint_fmt = get_bprint_format(data, size, event); | |
2229 | args = make_bprint_args(bprint_fmt, data, size, event); | |
2230 | arg = args; | |
2231 | ptr = bprint_fmt; | |
2232 | } | |
2233 | ||
2234 | for (; *ptr; ptr++) { | |
2235 | ls = 0; | |
2236 | if (*ptr == '%') { | |
2237 | saveptr = ptr; | |
2238 | show_func = 0; | |
2239 | cont_process: | |
2240 | ptr++; | |
2241 | switch (*ptr) { | |
2242 | case '%': | |
2243 | printf("%%"); | |
2244 | break; | |
2245 | case 'l': | |
2246 | ls++; | |
2247 | goto cont_process; | |
2248 | case 'L': | |
2249 | ls = 2; | |
2250 | goto cont_process; | |
2251 | case 'z': | |
2252 | case 'Z': | |
2253 | case '0' ... '9': | |
2254 | goto cont_process; | |
2255 | case 'p': | |
2256 | if (long_size == 4) | |
2257 | ls = 1; | |
2258 | else | |
2259 | ls = 2; | |
2260 | ||
2261 | if (*(ptr+1) == 'F' || | |
2262 | *(ptr+1) == 'f') { | |
2263 | ptr++; | |
2264 | show_func = *ptr; | |
2265 | } | |
2266 | ||
2267 | /* fall through */ | |
2268 | case 'd': | |
2269 | case 'i': | |
2270 | case 'x': | |
2271 | case 'X': | |
2272 | case 'u': | |
2273 | if (!arg) | |
2274 | die("no argument match"); | |
2275 | ||
2276 | len = ((unsigned long)ptr + 1) - | |
2277 | (unsigned long)saveptr; | |
2278 | ||
2279 | /* should never happen */ | |
2280 | if (len > 32) | |
2281 | die("bad format!"); | |
2282 | ||
2283 | memcpy(format, saveptr, len); | |
2284 | format[len] = 0; | |
2285 | ||
2286 | val = eval_num_arg(data, size, event, arg); | |
2287 | arg = arg->next; | |
2288 | ||
2289 | if (show_func) { | |
2290 | func = find_func(val); | |
2291 | if (func) { | |
2292 | printf("%s", func->func); | |
2293 | if (show_func == 'F') | |
2294 | printf("+0x%llx", | |
2295 | val - func->addr); | |
2296 | break; | |
2297 | } | |
2298 | } | |
2299 | switch (ls) { | |
2300 | case 0: | |
2301 | printf(format, (int)val); | |
2302 | break; | |
2303 | case 1: | |
2304 | printf(format, (long)val); | |
2305 | break; | |
2306 | case 2: | |
2307 | printf(format, (long long)val); | |
2308 | break; | |
2309 | default: | |
2310 | die("bad count (%d)", ls); | |
2311 | } | |
2312 | break; | |
2313 | case 's': | |
2314 | if (!arg) | |
2315 | die("no matching argument"); | |
2316 | ||
2317 | print_str_arg(data, size, event, arg); | |
2318 | arg = arg->next; | |
2319 | break; | |
2320 | default: | |
2321 | printf(">%c<", *ptr); | |
2322 | ||
2323 | } | |
2324 | } else | |
2325 | printf("%c", *ptr); | |
2326 | } | |
2327 | ||
2328 | if (args) { | |
2329 | free_args(args); | |
2330 | free(bprint_fmt); | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | static inline int log10_cpu(int nb) | |
2335 | { | |
2336 | if (nb / 100) | |
2337 | return 3; | |
2338 | if (nb / 10) | |
2339 | return 2; | |
2340 | return 1; | |
2341 | } | |
2342 | ||
2343 | /* taken from Linux, written by Frederic Weisbecker */ | |
2344 | static void print_graph_cpu(int cpu) | |
2345 | { | |
2346 | int i; | |
2347 | int log10_this = log10_cpu(cpu); | |
2348 | int log10_all = log10_cpu(cpus); | |
2349 | ||
2350 | ||
2351 | /* | |
2352 | * Start with a space character - to make it stand out | |
2353 | * to the right a bit when trace output is pasted into | |
2354 | * email: | |
2355 | */ | |
2356 | printf(" "); | |
2357 | ||
2358 | /* | |
2359 | * Tricky - we space the CPU field according to the max | |
2360 | * number of online CPUs. On a 2-cpu system it would take | |
2361 | * a maximum of 1 digit - on a 128 cpu system it would | |
2362 | * take up to 3 digits: | |
2363 | */ | |
2364 | for (i = 0; i < log10_all - log10_this; i++) | |
2365 | printf(" "); | |
2366 | ||
2367 | printf("%d) ", cpu); | |
2368 | } | |
2369 | ||
2370 | #define TRACE_GRAPH_PROCINFO_LENGTH 14 | |
2371 | #define TRACE_GRAPH_INDENT 2 | |
2372 | ||
2373 | static void print_graph_proc(int pid, const char *comm) | |
2374 | { | |
2375 | /* sign + log10(MAX_INT) + '\0' */ | |
2376 | char pid_str[11]; | |
2377 | int spaces = 0; | |
2378 | int len; | |
2379 | int i; | |
2380 | ||
2381 | sprintf(pid_str, "%d", pid); | |
2382 | ||
2383 | /* 1 stands for the "-" character */ | |
2384 | len = strlen(comm) + strlen(pid_str) + 1; | |
2385 | ||
2386 | if (len < TRACE_GRAPH_PROCINFO_LENGTH) | |
2387 | spaces = TRACE_GRAPH_PROCINFO_LENGTH - len; | |
2388 | ||
2389 | /* First spaces to align center */ | |
2390 | for (i = 0; i < spaces / 2; i++) | |
2391 | printf(" "); | |
2392 | ||
2393 | printf("%s-%s", comm, pid_str); | |
2394 | ||
2395 | /* Last spaces to align center */ | |
2396 | for (i = 0; i < spaces - (spaces / 2); i++) | |
2397 | printf(" "); | |
2398 | } | |
2399 | ||
2400 | static struct record * | |
2401 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, | |
2402 | struct record *next) | |
2403 | { | |
2404 | struct format_field *field; | |
2405 | struct event *event; | |
2406 | unsigned long val; | |
2407 | int type; | |
2408 | int pid; | |
2409 | ||
2410 | type = parse_common_type(next->data); | |
2411 | event = find_event(type); | |
2412 | if (!event) | |
2413 | return NULL; | |
2414 | ||
2415 | if (!(event->flags & EVENT_FL_ISFUNCRET)) | |
2416 | return NULL; | |
2417 | ||
2418 | pid = parse_common_pid(next->data); | |
2419 | field = find_field(event, "func"); | |
2420 | if (!field) | |
2421 | die("function return does not have field func"); | |
2422 | ||
2423 | val = read_size(next->data + field->offset, field->size); | |
2424 | ||
2425 | if (cur_pid != pid || cur_func != val) | |
2426 | return NULL; | |
2427 | ||
2428 | /* this is a leaf, now advance the iterator */ | |
2429 | return trace_read_data(cpu); | |
2430 | } | |
2431 | ||
2432 | /* Signal a overhead of time execution to the output */ | |
2433 | static void print_graph_overhead(unsigned long long duration) | |
2434 | { | |
2435 | /* Non nested entry or return */ | |
2436 | if (duration == ~0ULL) | |
2437 | return (void)printf(" "); | |
2438 | ||
2439 | /* Duration exceeded 100 msecs */ | |
2440 | if (duration > 100000ULL) | |
2441 | return (void)printf("! "); | |
2442 | ||
2443 | /* Duration exceeded 10 msecs */ | |
2444 | if (duration > 10000ULL) | |
2445 | return (void)printf("+ "); | |
2446 | ||
2447 | printf(" "); | |
2448 | } | |
2449 | ||
2450 | static void print_graph_duration(unsigned long long duration) | |
2451 | { | |
2452 | unsigned long usecs = duration / 1000; | |
2453 | unsigned long nsecs_rem = duration % 1000; | |
2454 | /* log10(ULONG_MAX) + '\0' */ | |
2455 | char msecs_str[21]; | |
2456 | char nsecs_str[5]; | |
2457 | int len; | |
2458 | int i; | |
2459 | ||
2460 | sprintf(msecs_str, "%lu", usecs); | |
2461 | ||
2462 | /* Print msecs */ | |
2463 | len = printf("%lu", usecs); | |
2464 | ||
2465 | /* Print nsecs (we don't want to exceed 7 numbers) */ | |
2466 | if (len < 7) { | |
2467 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); | |
2468 | len += printf(".%s", nsecs_str); | |
2469 | } | |
2470 | ||
2471 | printf(" us "); | |
2472 | ||
2473 | /* Print remaining spaces to fit the row's width */ | |
2474 | for (i = len; i < 7; i++) | |
2475 | printf(" "); | |
2476 | ||
2477 | printf("| "); | |
2478 | } | |
2479 | ||
2480 | static void | |
2481 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) | |
2482 | { | |
2483 | unsigned long long rettime, calltime; | |
2484 | unsigned long long duration, depth; | |
2485 | unsigned long long val; | |
2486 | struct format_field *field; | |
2487 | struct func_map *func; | |
2488 | struct event *ret_event; | |
2489 | int type; | |
2490 | int i; | |
2491 | ||
2492 | type = parse_common_type(ret_rec->data); | |
2493 | ret_event = find_event(type); | |
2494 | ||
2495 | field = find_field(ret_event, "rettime"); | |
2496 | if (!field) | |
2497 | die("can't find rettime in return graph"); | |
2498 | rettime = read_size(ret_rec->data + field->offset, field->size); | |
2499 | ||
2500 | field = find_field(ret_event, "calltime"); | |
2501 | if (!field) | |
2502 | die("can't find rettime in return graph"); | |
2503 | calltime = read_size(ret_rec->data + field->offset, field->size); | |
2504 | ||
2505 | duration = rettime - calltime; | |
2506 | ||
2507 | /* Overhead */ | |
2508 | print_graph_overhead(duration); | |
2509 | ||
2510 | /* Duration */ | |
2511 | print_graph_duration(duration); | |
2512 | ||
2513 | field = find_field(event, "depth"); | |
2514 | if (!field) | |
2515 | die("can't find depth in entry graph"); | |
2516 | depth = read_size(data + field->offset, field->size); | |
2517 | ||
2518 | /* Function */ | |
2519 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2520 | printf(" "); | |
2521 | ||
2522 | field = find_field(event, "func"); | |
2523 | if (!field) | |
2524 | die("can't find func in entry graph"); | |
2525 | val = read_size(data + field->offset, field->size); | |
2526 | func = find_func(val); | |
2527 | ||
2528 | if (func) | |
2529 | printf("%s();", func->func); | |
2530 | else | |
2531 | printf("%llx();", val); | |
2532 | } | |
2533 | ||
2534 | static void print_graph_nested(struct event *event, void *data) | |
2535 | { | |
2536 | struct format_field *field; | |
2537 | unsigned long long depth; | |
2538 | unsigned long long val; | |
2539 | struct func_map *func; | |
2540 | int i; | |
2541 | ||
2542 | /* No overhead */ | |
2543 | print_graph_overhead(-1); | |
2544 | ||
2545 | /* No time */ | |
2546 | printf(" | "); | |
2547 | ||
2548 | field = find_field(event, "depth"); | |
2549 | if (!field) | |
2550 | die("can't find depth in entry graph"); | |
2551 | depth = read_size(data + field->offset, field->size); | |
2552 | ||
2553 | /* Function */ | |
2554 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2555 | printf(" "); | |
2556 | ||
2557 | field = find_field(event, "func"); | |
2558 | if (!field) | |
2559 | die("can't find func in entry graph"); | |
2560 | val = read_size(data + field->offset, field->size); | |
2561 | func = find_func(val); | |
2562 | ||
2563 | if (func) | |
2564 | printf("%s() {", func->func); | |
2565 | else | |
2566 | printf("%llx() {", val); | |
2567 | } | |
2568 | ||
2569 | static void | |
2570 | pretty_print_func_ent(void *data, int size, struct event *event, | |
2571 | int cpu, int pid, const char *comm, | |
2572 | unsigned long secs, unsigned long usecs) | |
2573 | { | |
2574 | struct format_field *field; | |
2575 | struct record *rec; | |
2576 | void *copy_data; | |
2577 | unsigned long val; | |
2578 | ||
2579 | printf("%5lu.%06lu | ", secs, usecs); | |
2580 | ||
2581 | print_graph_cpu(cpu); | |
2582 | print_graph_proc(pid, comm); | |
2583 | ||
2584 | printf(" | "); | |
2585 | ||
2586 | field = find_field(event, "func"); | |
2587 | if (!field) | |
2588 | die("function entry does not have func field"); | |
2589 | ||
2590 | val = read_size(data + field->offset, field->size); | |
2591 | ||
2592 | /* | |
2593 | * peek_data may unmap the data pointer. Copy it first. | |
2594 | */ | |
2595 | copy_data = malloc_or_die(size); | |
2596 | memcpy(copy_data, data, size); | |
2597 | data = copy_data; | |
2598 | ||
2599 | rec = trace_peek_data(cpu); | |
2600 | if (rec) { | |
2601 | rec = get_return_for_leaf(cpu, pid, val, rec); | |
2602 | if (rec) { | |
2603 | print_graph_entry_leaf(event, data, rec); | |
2604 | goto out_free; | |
2605 | } | |
2606 | } | |
2607 | print_graph_nested(event, data); | |
2608 | out_free: | |
2609 | free(data); | |
2610 | } | |
2611 | ||
2612 | static void | |
2613 | pretty_print_func_ret(void *data, int size __unused, struct event *event, | |
2614 | int cpu, int pid, const char *comm, | |
2615 | unsigned long secs, unsigned long usecs) | |
2616 | { | |
2617 | unsigned long long rettime, calltime; | |
2618 | unsigned long long duration, depth; | |
2619 | struct format_field *field; | |
2620 | int i; | |
2621 | ||
2622 | printf("%5lu.%06lu | ", secs, usecs); | |
2623 | ||
2624 | print_graph_cpu(cpu); | |
2625 | print_graph_proc(pid, comm); | |
2626 | ||
2627 | printf(" | "); | |
2628 | ||
2629 | field = find_field(event, "rettime"); | |
2630 | if (!field) | |
2631 | die("can't find rettime in return graph"); | |
2632 | rettime = read_size(data + field->offset, field->size); | |
2633 | ||
2634 | field = find_field(event, "calltime"); | |
2635 | if (!field) | |
2636 | die("can't find calltime in return graph"); | |
2637 | calltime = read_size(data + field->offset, field->size); | |
2638 | ||
2639 | duration = rettime - calltime; | |
2640 | ||
2641 | /* Overhead */ | |
2642 | print_graph_overhead(duration); | |
2643 | ||
2644 | /* Duration */ | |
2645 | print_graph_duration(duration); | |
2646 | ||
2647 | field = find_field(event, "depth"); | |
2648 | if (!field) | |
2649 | die("can't find depth in entry graph"); | |
2650 | depth = read_size(data + field->offset, field->size); | |
2651 | ||
2652 | /* Function */ | |
2653 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2654 | printf(" "); | |
2655 | ||
2656 | printf("}"); | |
2657 | } | |
2658 | ||
2659 | static void | |
2660 | pretty_print_func_graph(void *data, int size, struct event *event, | |
2661 | int cpu, int pid, const char *comm, | |
2662 | unsigned long secs, unsigned long usecs) | |
2663 | { | |
2664 | if (event->flags & EVENT_FL_ISFUNCENT) | |
2665 | pretty_print_func_ent(data, size, event, | |
2666 | cpu, pid, comm, secs, usecs); | |
2667 | else if (event->flags & EVENT_FL_ISFUNCRET) | |
2668 | pretty_print_func_ret(data, size, event, | |
2669 | cpu, pid, comm, secs, usecs); | |
2670 | printf("\n"); | |
2671 | } | |
2672 | ||
2673 | void print_event(int cpu, void *data, int size, unsigned long long nsecs, | |
2674 | char *comm) | |
2675 | { | |
2676 | struct event *event; | |
2677 | unsigned long secs; | |
2678 | unsigned long usecs; | |
2679 | int type; | |
2680 | int pid; | |
2681 | ||
2682 | secs = nsecs / NSECS_PER_SEC; | |
2683 | nsecs -= secs * NSECS_PER_SEC; | |
2684 | usecs = nsecs / NSECS_PER_USEC; | |
2685 | ||
2686 | type = parse_common_type(data); | |
2687 | ||
2688 | event = find_event(type); | |
2689 | if (!event) | |
2690 | die("ug! no event found for type %d", type); | |
2691 | ||
2692 | pid = parse_common_pid(data); | |
2693 | ||
2694 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) | |
2695 | return pretty_print_func_graph(data, size, event, cpu, | |
2696 | pid, comm, secs, usecs); | |
2697 | ||
2698 | printf("%16s-%-5d [%03d] %5lu.%06lu: %s: ", | |
2699 | comm, pid, cpu, | |
2700 | secs, usecs, event->name); | |
2701 | ||
2702 | pretty_print(data, size, event); | |
2703 | printf("\n"); | |
2704 | } | |
2705 | ||
2706 | static void print_fields(struct print_flag_sym *field) | |
2707 | { | |
2708 | printf("{ %s, %s }", field->value, field->str); | |
2709 | if (field->next) { | |
2710 | printf(", "); | |
2711 | print_fields(field->next); | |
2712 | } | |
2713 | } | |
2714 | ||
2715 | static void print_args(struct print_arg *args) | |
2716 | { | |
2717 | int print_paren = 1; | |
2718 | ||
2719 | switch (args->type) { | |
2720 | case PRINT_NULL: | |
2721 | printf("null"); | |
2722 | break; | |
2723 | case PRINT_ATOM: | |
2724 | printf("%s", args->atom.atom); | |
2725 | break; | |
2726 | case PRINT_FIELD: | |
2727 | printf("REC->%s", args->field.name); | |
2728 | break; | |
2729 | case PRINT_FLAGS: | |
2730 | printf("__print_flags("); | |
2731 | print_args(args->flags.field); | |
2732 | printf(", %s, ", args->flags.delim); | |
2733 | print_fields(args->flags.flags); | |
2734 | printf(")"); | |
2735 | break; | |
2736 | case PRINT_SYMBOL: | |
2737 | printf("__print_symbolic("); | |
2738 | print_args(args->symbol.field); | |
2739 | printf(", "); | |
2740 | print_fields(args->symbol.symbols); | |
2741 | printf(")"); | |
2742 | break; | |
2743 | case PRINT_STRING: | |
2744 | printf("__get_str(%s)", args->string.string); | |
2745 | break; | |
2746 | case PRINT_TYPE: | |
2747 | printf("(%s)", args->typecast.type); | |
2748 | print_args(args->typecast.item); | |
2749 | break; | |
2750 | case PRINT_OP: | |
2751 | if (strcmp(args->op.op, ":") == 0) | |
2752 | print_paren = 0; | |
2753 | if (print_paren) | |
2754 | printf("("); | |
2755 | print_args(args->op.left); | |
2756 | printf(" %s ", args->op.op); | |
2757 | print_args(args->op.right); | |
2758 | if (print_paren) | |
2759 | printf(")"); | |
2760 | break; | |
2761 | default: | |
2762 | /* we should warn... */ | |
2763 | return; | |
2764 | } | |
2765 | if (args->next) { | |
2766 | printf("\n"); | |
2767 | print_args(args->next); | |
2768 | } | |
2769 | } | |
2770 | ||
2771 | static void parse_header_field(char *type, | |
2772 | int *offset, int *size) | |
2773 | { | |
2774 | char *token; | |
2775 | ||
2776 | if (read_expected(EVENT_ITEM, (char *)"field") < 0) | |
2777 | return; | |
2778 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2779 | return; | |
2780 | /* type */ | |
2781 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2782 | return; | |
2783 | free_token(token); | |
2784 | ||
2785 | if (read_expected(EVENT_ITEM, type) < 0) | |
2786 | return; | |
2787 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2788 | return; | |
2789 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
2790 | return; | |
2791 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2792 | return; | |
2793 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2794 | return; | |
2795 | *offset = atoi(token); | |
2796 | free_token(token); | |
2797 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2798 | return; | |
2799 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
2800 | return; | |
2801 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2802 | return; | |
2803 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2804 | return; | |
2805 | *size = atoi(token); | |
2806 | free_token(token); | |
2807 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2808 | return; | |
2809 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) | |
2810 | return; | |
2811 | free_token(token); | |
2812 | } | |
2813 | ||
2814 | int parse_header_page(char *buf, unsigned long size) | |
2815 | { | |
2816 | init_input_buf(buf, size); | |
2817 | ||
2818 | parse_header_field((char *)"timestamp", &header_page_ts_offset, | |
2819 | &header_page_ts_size); | |
2820 | parse_header_field((char *)"commit", &header_page_size_offset, | |
2821 | &header_page_size_size); | |
2822 | parse_header_field((char *)"data", &header_page_data_offset, | |
2823 | &header_page_data_size); | |
2824 | ||
2825 | return 0; | |
2826 | } | |
2827 | ||
2828 | int parse_ftrace_file(char *buf, unsigned long size) | |
2829 | { | |
2830 | struct format_field *field; | |
2831 | struct print_arg *arg, **list; | |
2832 | struct event *event; | |
2833 | int ret; | |
2834 | ||
2835 | init_input_buf(buf, size); | |
2836 | ||
2837 | event = alloc_event(); | |
2838 | if (!event) | |
2839 | return -ENOMEM; | |
2840 | ||
2841 | event->flags |= EVENT_FL_ISFTRACE; | |
2842 | ||
2843 | event->name = event_read_name(); | |
2844 | if (!event->name) | |
2845 | die("failed to read ftrace event name"); | |
2846 | ||
2847 | if (strcmp(event->name, "function") == 0) | |
2848 | event->flags |= EVENT_FL_ISFUNC; | |
2849 | ||
2850 | else if (strcmp(event->name, "funcgraph_entry") == 0) | |
2851 | event->flags |= EVENT_FL_ISFUNCENT; | |
2852 | ||
2853 | else if (strcmp(event->name, "funcgraph_exit") == 0) | |
2854 | event->flags |= EVENT_FL_ISFUNCRET; | |
2855 | ||
2856 | else if (strcmp(event->name, "bprint") == 0) | |
2857 | event->flags |= EVENT_FL_ISBPRINT; | |
2858 | ||
2859 | event->id = event_read_id(); | |
2860 | if (event->id < 0) | |
2861 | die("failed to read ftrace event id"); | |
2862 | ||
2863 | add_event(event); | |
2864 | ||
2865 | ret = event_read_format(event); | |
2866 | if (ret < 0) | |
2867 | die("failed to read ftrace event format"); | |
2868 | ||
2869 | ret = event_read_print(event); | |
2870 | if (ret < 0) | |
2871 | die("failed to read ftrace event print fmt"); | |
2872 | ||
2873 | /* | |
2874 | * The arguments for ftrace files are parsed by the fields. | |
2875 | * Set up the fields as their arguments. | |
2876 | */ | |
2877 | list = &event->print_fmt.args; | |
2878 | for (field = event->format.fields; field; field = field->next) { | |
2879 | arg = malloc_or_die(sizeof(*arg)); | |
2880 | memset(arg, 0, sizeof(*arg)); | |
2881 | *list = arg; | |
2882 | list = &arg->next; | |
2883 | arg->type = PRINT_FIELD; | |
2884 | arg->field.name = field->name; | |
2885 | arg->field.field = field; | |
2886 | } | |
2887 | return 0; | |
2888 | } | |
2889 | ||
2890 | int parse_event_file(char *buf, unsigned long size, char *system__unused __unused) | |
2891 | { | |
2892 | struct event *event; | |
2893 | int ret; | |
2894 | ||
2895 | init_input_buf(buf, size); | |
2896 | ||
2897 | event = alloc_event(); | |
2898 | if (!event) | |
2899 | return -ENOMEM; | |
2900 | ||
2901 | event->name = event_read_name(); | |
2902 | if (!event->name) | |
2903 | die("failed to read event name"); | |
2904 | ||
2905 | event->id = event_read_id(); | |
2906 | if (event->id < 0) | |
2907 | die("failed to read event id"); | |
2908 | ||
2909 | ret = event_read_format(event); | |
2910 | if (ret < 0) | |
2911 | die("failed to read event format"); | |
2912 | ||
2913 | ret = event_read_print(event); | |
2914 | if (ret < 0) | |
2915 | die("failed to read event print fmt"); | |
2916 | ||
2917 | #define PRINT_ARGS 0 | |
2918 | if (PRINT_ARGS && event->print_fmt.args) | |
2919 | print_args(event->print_fmt.args); | |
2920 | ||
2921 | add_event(event); | |
2922 | return 0; | |
2923 | } | |
2924 | ||
2925 | void parse_set_info(int nr_cpus, int long_sz) | |
2926 | { | |
2927 | cpus = nr_cpus; | |
2928 | long_size = long_sz; | |
2929 | } |