]>
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; | |
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, | |
65014ab3 | 93 | (float *)(void *)&item->comm); /* workaround gcc warning */ |
ea4010d1 SR |
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", | |
65014ab3 | 155 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
ea4010d1 | 156 | &ch, |
65014ab3 IM |
157 | (float *)(void *)&item->func, |
158 | (float *)(void *)&item->mod); | |
ea4010d1 SR |
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", | |
65014ab3 IM |
294 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
295 | (float *)(void *)&item->printk); | |
ea4010d1 SR |
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 | ||
064739bc TZ |
724 | static int field_is_string(struct format_field *field) |
725 | { | |
726 | if ((field->flags & FIELD_IS_ARRAY) && | |
727 | (!strstr(field->type, "char") || !strstr(field->type, "u8") || | |
728 | !strstr(field->type, "s8"))) | |
729 | return 1; | |
730 | ||
731 | return 0; | |
732 | } | |
733 | ||
734 | static int field_is_dynamic(struct format_field *field) | |
735 | { | |
736 | if (!strcmp(field->type, "__data_loc")) | |
737 | return 1; | |
738 | ||
739 | return 0; | |
740 | } | |
741 | ||
ea4010d1 SR |
742 | static int event_read_fields(struct event *event, struct format_field **fields) |
743 | { | |
744 | struct format_field *field = NULL; | |
745 | enum event_type type; | |
746 | char *token; | |
747 | char *last_token; | |
748 | int count = 0; | |
749 | ||
750 | do { | |
751 | type = read_token(&token); | |
752 | if (type == EVENT_NEWLINE) { | |
753 | free_token(token); | |
754 | return count; | |
755 | } | |
756 | ||
757 | count++; | |
758 | ||
759 | if (test_type_token(type, token, EVENT_ITEM, (char *)"field")) | |
760 | goto fail; | |
761 | free_token(token); | |
762 | ||
763 | type = read_token(&token); | |
764 | /* | |
765 | * The ftrace fields may still use the "special" name. | |
766 | * Just ignore it. | |
767 | */ | |
768 | if (event->flags & EVENT_FL_ISFTRACE && | |
769 | type == EVENT_ITEM && strcmp(token, "special") == 0) { | |
770 | free_token(token); | |
771 | type = read_token(&token); | |
772 | } | |
773 | ||
774 | if (test_type_token(type, token, EVENT_OP, (char *)":") < 0) | |
775 | return -1; | |
776 | ||
777 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
778 | goto fail; | |
779 | ||
780 | last_token = token; | |
781 | ||
782 | field = malloc_or_die(sizeof(*field)); | |
783 | memset(field, 0, sizeof(*field)); | |
784 | ||
785 | /* read the rest of the type */ | |
786 | for (;;) { | |
787 | type = read_token(&token); | |
788 | if (type == EVENT_ITEM || | |
789 | (type == EVENT_OP && strcmp(token, "*") == 0) || | |
790 | /* | |
791 | * Some of the ftrace fields are broken and have | |
792 | * an illegal "." in them. | |
793 | */ | |
794 | (event->flags & EVENT_FL_ISFTRACE && | |
795 | type == EVENT_OP && strcmp(token, ".") == 0)) { | |
796 | ||
797 | if (strcmp(token, "*") == 0) | |
798 | field->flags |= FIELD_IS_POINTER; | |
799 | ||
800 | if (field->type) { | |
801 | field->type = realloc(field->type, | |
802 | strlen(field->type) + | |
803 | strlen(last_token) + 2); | |
804 | strcat(field->type, " "); | |
805 | strcat(field->type, last_token); | |
806 | } else | |
807 | field->type = last_token; | |
808 | last_token = token; | |
809 | continue; | |
810 | } | |
811 | ||
812 | break; | |
813 | } | |
814 | ||
815 | if (!field->type) { | |
816 | die("no type found"); | |
817 | goto fail; | |
818 | } | |
819 | field->name = last_token; | |
820 | ||
821 | if (test_type(type, EVENT_OP)) | |
822 | goto fail; | |
823 | ||
824 | if (strcmp(token, "[") == 0) { | |
825 | enum event_type last_type = type; | |
826 | char *brackets = token; | |
827 | int len; | |
828 | ||
829 | field->flags |= FIELD_IS_ARRAY; | |
830 | ||
831 | type = read_token(&token); | |
832 | while (strcmp(token, "]") != 0) { | |
833 | if (last_type == EVENT_ITEM && | |
834 | type == EVENT_ITEM) | |
835 | len = 2; | |
836 | else | |
837 | len = 1; | |
838 | last_type = type; | |
839 | ||
840 | brackets = realloc(brackets, | |
841 | strlen(brackets) + | |
842 | strlen(token) + len); | |
843 | if (len == 2) | |
844 | strcat(brackets, " "); | |
845 | strcat(brackets, token); | |
846 | free_token(token); | |
847 | type = read_token(&token); | |
848 | if (type == EVENT_NONE) { | |
849 | die("failed to find token"); | |
850 | goto fail; | |
851 | } | |
852 | } | |
853 | ||
854 | free_token(token); | |
855 | ||
856 | brackets = realloc(brackets, strlen(brackets) + 2); | |
857 | strcat(brackets, "]"); | |
858 | ||
859 | /* add brackets to type */ | |
860 | ||
861 | type = read_token(&token); | |
862 | /* | |
863 | * If the next token is not an OP, then it is of | |
864 | * the format: type [] item; | |
865 | */ | |
866 | if (type == EVENT_ITEM) { | |
867 | field->type = realloc(field->type, | |
868 | strlen(field->type) + | |
869 | strlen(field->name) + | |
870 | strlen(brackets) + 2); | |
871 | strcat(field->type, " "); | |
872 | strcat(field->type, field->name); | |
873 | free_token(field->name); | |
874 | strcat(field->type, brackets); | |
875 | field->name = token; | |
876 | type = read_token(&token); | |
877 | } else { | |
878 | field->type = realloc(field->type, | |
879 | strlen(field->type) + | |
880 | strlen(brackets) + 1); | |
881 | strcat(field->type, brackets); | |
882 | } | |
883 | free(brackets); | |
884 | } | |
885 | ||
064739bc TZ |
886 | if (field_is_string(field)) { |
887 | field->flags |= FIELD_IS_STRING; | |
888 | if (field_is_dynamic(field)) | |
889 | field->flags |= FIELD_IS_DYNAMIC; | |
890 | } | |
891 | ||
ea4010d1 SR |
892 | if (test_type_token(type, token, EVENT_OP, (char *)";")) |
893 | goto fail; | |
894 | free_token(token); | |
895 | ||
896 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
897 | goto fail_expect; | |
898 | ||
899 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
900 | goto fail_expect; | |
901 | ||
902 | if (read_expect_type(EVENT_ITEM, &token)) | |
903 | goto fail; | |
904 | field->offset = strtoul(token, NULL, 0); | |
905 | free_token(token); | |
906 | ||
907 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
908 | goto fail_expect; | |
909 | ||
910 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
911 | goto fail_expect; | |
912 | ||
913 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
914 | goto fail_expect; | |
915 | ||
916 | if (read_expect_type(EVENT_ITEM, &token)) | |
917 | goto fail; | |
918 | field->size = strtoul(token, NULL, 0); | |
919 | free_token(token); | |
920 | ||
26a50744 TZ |
921 | if (read_expected(EVENT_OP, (char *)";") < 0) |
922 | goto fail_expect; | |
923 | ||
924 | if (read_expected(EVENT_ITEM, (char *)"signed") < 0) | |
925 | goto fail_expect; | |
926 | ||
927 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
928 | goto fail_expect; | |
929 | ||
930 | if (read_expect_type(EVENT_ITEM, &token)) | |
931 | goto fail; | |
932 | if (strtoul(token, NULL, 0)) | |
933 | field->flags |= FIELD_IS_SIGNED; | |
934 | free_token(token); | |
935 | ||
ea4010d1 SR |
936 | if (read_expected(EVENT_OP, (char *)";") < 0) |
937 | goto fail_expect; | |
938 | ||
939 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) | |
940 | goto fail; | |
941 | free_token(token); | |
942 | ||
943 | *fields = field; | |
944 | fields = &field->next; | |
945 | ||
946 | } while (1); | |
947 | ||
948 | return 0; | |
949 | ||
950 | fail: | |
951 | free_token(token); | |
952 | fail_expect: | |
953 | if (field) | |
954 | free(field); | |
955 | return -1; | |
956 | } | |
957 | ||
958 | static int event_read_format(struct event *event) | |
959 | { | |
960 | char *token; | |
961 | int ret; | |
962 | ||
963 | if (read_expected_item(EVENT_ITEM, (char *)"format") < 0) | |
964 | return -1; | |
965 | ||
966 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
967 | return -1; | |
968 | ||
969 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
970 | goto fail; | |
971 | free_token(token); | |
972 | ||
973 | ret = event_read_fields(event, &event->format.common_fields); | |
974 | if (ret < 0) | |
975 | return ret; | |
976 | event->format.nr_common = ret; | |
977 | ||
978 | ret = event_read_fields(event, &event->format.fields); | |
979 | if (ret < 0) | |
980 | return ret; | |
981 | event->format.nr_fields = ret; | |
982 | ||
983 | return 0; | |
984 | ||
985 | fail: | |
986 | free_token(token); | |
987 | return -1; | |
988 | } | |
989 | ||
990 | enum event_type | |
991 | process_arg_token(struct event *event, struct print_arg *arg, | |
992 | char **tok, enum event_type type); | |
993 | ||
994 | static enum event_type | |
995 | process_arg(struct event *event, struct print_arg *arg, char **tok) | |
996 | { | |
997 | enum event_type type; | |
998 | char *token; | |
999 | ||
1000 | type = read_token(&token); | |
1001 | *tok = token; | |
1002 | ||
1003 | return process_arg_token(event, arg, tok, type); | |
1004 | } | |
1005 | ||
1006 | static enum event_type | |
1007 | process_cond(struct event *event, struct print_arg *top, char **tok) | |
1008 | { | |
1009 | struct print_arg *arg, *left, *right; | |
1010 | enum event_type type; | |
1011 | char *token = NULL; | |
1012 | ||
1013 | arg = malloc_or_die(sizeof(*arg)); | |
1014 | memset(arg, 0, sizeof(*arg)); | |
1015 | ||
1016 | left = malloc_or_die(sizeof(*left)); | |
1017 | ||
1018 | right = malloc_or_die(sizeof(*right)); | |
1019 | ||
1020 | arg->type = PRINT_OP; | |
1021 | arg->op.left = left; | |
1022 | arg->op.right = right; | |
1023 | ||
1024 | *tok = NULL; | |
1025 | type = process_arg(event, left, &token); | |
1026 | if (test_type_token(type, token, EVENT_OP, (char *)":")) | |
1027 | goto out_free; | |
1028 | ||
1029 | arg->op.op = token; | |
1030 | ||
1031 | type = process_arg(event, right, &token); | |
1032 | ||
1033 | top->op.right = arg; | |
1034 | ||
1035 | *tok = token; | |
1036 | return type; | |
1037 | ||
1038 | out_free: | |
1039 | free_token(*tok); | |
1040 | free(right); | |
1041 | free(left); | |
1042 | free_arg(arg); | |
1043 | return EVENT_ERROR; | |
1044 | } | |
1045 | ||
1046 | static int get_op_prio(char *op) | |
1047 | { | |
1048 | if (!op[1]) { | |
1049 | switch (op[0]) { | |
1050 | case '*': | |
1051 | case '/': | |
1052 | case '%': | |
1053 | return 6; | |
1054 | case '+': | |
1055 | case '-': | |
1056 | return 7; | |
1057 | /* '>>' and '<<' are 8 */ | |
1058 | case '<': | |
1059 | case '>': | |
1060 | return 9; | |
1061 | /* '==' and '!=' are 10 */ | |
1062 | case '&': | |
1063 | return 11; | |
1064 | case '^': | |
1065 | return 12; | |
1066 | case '|': | |
1067 | return 13; | |
1068 | case '?': | |
1069 | return 16; | |
1070 | default: | |
1071 | die("unknown op '%c'", op[0]); | |
1072 | return -1; | |
1073 | } | |
1074 | } else { | |
1075 | if (strcmp(op, "++") == 0 || | |
1076 | strcmp(op, "--") == 0) { | |
1077 | return 3; | |
1078 | } else if (strcmp(op, ">>") == 0 || | |
1079 | strcmp(op, "<<") == 0) { | |
1080 | return 8; | |
1081 | } else if (strcmp(op, ">=") == 0 || | |
1082 | strcmp(op, "<=") == 0) { | |
1083 | return 9; | |
1084 | } else if (strcmp(op, "==") == 0 || | |
1085 | strcmp(op, "!=") == 0) { | |
1086 | return 10; | |
1087 | } else if (strcmp(op, "&&") == 0) { | |
1088 | return 14; | |
1089 | } else if (strcmp(op, "||") == 0) { | |
1090 | return 15; | |
1091 | } else { | |
1092 | die("unknown op '%s'", op); | |
1093 | return -1; | |
1094 | } | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | static void set_op_prio(struct print_arg *arg) | |
1099 | { | |
1100 | ||
1101 | /* single ops are the greatest */ | |
1102 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { | |
1103 | arg->op.prio = 0; | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | arg->op.prio = get_op_prio(arg->op.op); | |
1108 | } | |
1109 | ||
1110 | static enum event_type | |
1111 | process_op(struct event *event, struct print_arg *arg, char **tok) | |
1112 | { | |
1113 | struct print_arg *left, *right = NULL; | |
1114 | enum event_type type; | |
1115 | char *token; | |
1116 | ||
1117 | /* the op is passed in via tok */ | |
1118 | token = *tok; | |
1119 | ||
1120 | if (arg->type == PRINT_OP && !arg->op.left) { | |
1121 | /* handle single op */ | |
1122 | if (token[1]) { | |
1123 | die("bad op token %s", token); | |
1124 | return EVENT_ERROR; | |
1125 | } | |
1126 | switch (token[0]) { | |
1127 | case '!': | |
1128 | case '+': | |
1129 | case '-': | |
1130 | break; | |
1131 | default: | |
1132 | die("bad op token %s", token); | |
1133 | return EVENT_ERROR; | |
1134 | } | |
1135 | ||
1136 | /* make an empty left */ | |
1137 | left = malloc_or_die(sizeof(*left)); | |
1138 | left->type = PRINT_NULL; | |
1139 | arg->op.left = left; | |
1140 | ||
1141 | right = malloc_or_die(sizeof(*right)); | |
1142 | arg->op.right = right; | |
1143 | ||
1144 | type = process_arg(event, right, tok); | |
1145 | ||
1146 | } else if (strcmp(token, "?") == 0) { | |
1147 | ||
1148 | left = malloc_or_die(sizeof(*left)); | |
1149 | /* copy the top arg to the left */ | |
1150 | *left = *arg; | |
1151 | ||
1152 | arg->type = PRINT_OP; | |
1153 | arg->op.op = token; | |
1154 | arg->op.left = left; | |
1155 | arg->op.prio = 0; | |
1156 | ||
1157 | type = process_cond(event, arg, tok); | |
1158 | ||
1159 | } else if (strcmp(token, ">>") == 0 || | |
1160 | strcmp(token, "<<") == 0 || | |
1161 | strcmp(token, "&") == 0 || | |
1162 | strcmp(token, "|") == 0 || | |
1163 | strcmp(token, "&&") == 0 || | |
1164 | strcmp(token, "||") == 0 || | |
1165 | strcmp(token, "-") == 0 || | |
1166 | strcmp(token, "+") == 0 || | |
1167 | strcmp(token, "*") == 0 || | |
1168 | strcmp(token, "^") == 0 || | |
1169 | strcmp(token, "/") == 0 || | |
1170 | strcmp(token, "==") == 0 || | |
1171 | strcmp(token, "!=") == 0) { | |
1172 | ||
1173 | left = malloc_or_die(sizeof(*left)); | |
1174 | ||
1175 | /* copy the top arg to the left */ | |
1176 | *left = *arg; | |
1177 | ||
1178 | arg->type = PRINT_OP; | |
1179 | arg->op.op = token; | |
1180 | arg->op.left = left; | |
1181 | ||
1182 | set_op_prio(arg); | |
1183 | ||
1184 | right = malloc_or_die(sizeof(*right)); | |
1185 | ||
1186 | type = process_arg(event, right, tok); | |
1187 | ||
1188 | arg->op.right = right; | |
1189 | ||
1190 | } else { | |
1191 | die("unknown op '%s'", token); | |
1192 | /* the arg is now the left side */ | |
1193 | return EVENT_NONE; | |
1194 | } | |
1195 | ||
1196 | ||
1197 | if (type == EVENT_OP) { | |
1198 | int prio; | |
1199 | ||
1200 | /* higher prios need to be closer to the root */ | |
1201 | prio = get_op_prio(*tok); | |
1202 | ||
1203 | if (prio > arg->op.prio) | |
1204 | return process_op(event, arg, tok); | |
1205 | ||
1206 | return process_op(event, right, tok); | |
1207 | } | |
1208 | ||
1209 | return type; | |
1210 | } | |
1211 | ||
1212 | static enum event_type | |
1213 | process_entry(struct event *event __unused, struct print_arg *arg, | |
1214 | char **tok) | |
1215 | { | |
1216 | enum event_type type; | |
1217 | char *field; | |
1218 | char *token; | |
1219 | ||
1220 | if (read_expected(EVENT_OP, (char *)"->") < 0) | |
1221 | return EVENT_ERROR; | |
1222 | ||
1223 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1224 | goto fail; | |
1225 | field = token; | |
1226 | ||
1227 | arg->type = PRINT_FIELD; | |
1228 | arg->field.name = field; | |
1229 | ||
1230 | type = read_token(&token); | |
1231 | *tok = token; | |
1232 | ||
1233 | return type; | |
1234 | ||
1235 | fail: | |
1236 | free_token(token); | |
1237 | return EVENT_ERROR; | |
1238 | } | |
1239 | ||
1240 | static char *arg_eval (struct print_arg *arg); | |
1241 | ||
1242 | static long long arg_num_eval(struct print_arg *arg) | |
1243 | { | |
1244 | long long left, right; | |
1245 | long long val = 0; | |
1246 | ||
1247 | switch (arg->type) { | |
1248 | case PRINT_ATOM: | |
1249 | val = strtoll(arg->atom.atom, NULL, 0); | |
1250 | break; | |
1251 | case PRINT_TYPE: | |
1252 | val = arg_num_eval(arg->typecast.item); | |
1253 | break; | |
1254 | case PRINT_OP: | |
1255 | switch (arg->op.op[0]) { | |
1256 | case '|': | |
1257 | left = arg_num_eval(arg->op.left); | |
1258 | right = arg_num_eval(arg->op.right); | |
1259 | if (arg->op.op[1]) | |
1260 | val = left || right; | |
1261 | else | |
1262 | val = left | right; | |
1263 | break; | |
1264 | case '&': | |
1265 | left = arg_num_eval(arg->op.left); | |
1266 | right = arg_num_eval(arg->op.right); | |
1267 | if (arg->op.op[1]) | |
1268 | val = left && right; | |
1269 | else | |
1270 | val = left & right; | |
1271 | break; | |
1272 | case '<': | |
1273 | left = arg_num_eval(arg->op.left); | |
1274 | right = arg_num_eval(arg->op.right); | |
1275 | switch (arg->op.op[1]) { | |
1276 | case 0: | |
1277 | val = left < right; | |
1278 | break; | |
1279 | case '<': | |
1280 | val = left << right; | |
1281 | break; | |
1282 | case '=': | |
1283 | val = left <= right; | |
1284 | break; | |
1285 | default: | |
1286 | die("unknown op '%s'", arg->op.op); | |
1287 | } | |
1288 | break; | |
1289 | case '>': | |
1290 | left = arg_num_eval(arg->op.left); | |
1291 | right = arg_num_eval(arg->op.right); | |
1292 | switch (arg->op.op[1]) { | |
1293 | case 0: | |
1294 | val = left > right; | |
1295 | break; | |
1296 | case '>': | |
1297 | val = left >> right; | |
1298 | break; | |
1299 | case '=': | |
1300 | val = left >= right; | |
1301 | break; | |
1302 | default: | |
1303 | die("unknown op '%s'", arg->op.op); | |
1304 | } | |
1305 | break; | |
1306 | case '=': | |
1307 | left = arg_num_eval(arg->op.left); | |
1308 | right = arg_num_eval(arg->op.right); | |
1309 | ||
1310 | if (arg->op.op[1] != '=') | |
1311 | die("unknown op '%s'", arg->op.op); | |
1312 | ||
1313 | val = left == right; | |
1314 | break; | |
1315 | case '!': | |
1316 | left = arg_num_eval(arg->op.left); | |
1317 | right = arg_num_eval(arg->op.right); | |
1318 | ||
1319 | switch (arg->op.op[1]) { | |
1320 | case '=': | |
1321 | val = left != right; | |
1322 | break; | |
1323 | default: | |
1324 | die("unknown op '%s'", arg->op.op); | |
1325 | } | |
1326 | break; | |
1327 | default: | |
1328 | die("unknown op '%s'", arg->op.op); | |
1329 | } | |
1330 | break; | |
1331 | ||
1332 | case PRINT_NULL: | |
1333 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1334 | case PRINT_STRING: | |
1335 | default: | |
1336 | die("invalid eval type %d", arg->type); | |
1337 | ||
1338 | } | |
1339 | return val; | |
1340 | } | |
1341 | ||
1342 | static char *arg_eval (struct print_arg *arg) | |
1343 | { | |
1344 | long long val; | |
1345 | static char buf[20]; | |
1346 | ||
1347 | switch (arg->type) { | |
1348 | case PRINT_ATOM: | |
1349 | return arg->atom.atom; | |
1350 | case PRINT_TYPE: | |
1351 | return arg_eval(arg->typecast.item); | |
1352 | case PRINT_OP: | |
1353 | val = arg_num_eval(arg); | |
1354 | sprintf(buf, "%lld", val); | |
1355 | return buf; | |
1356 | ||
1357 | case PRINT_NULL: | |
1358 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1359 | case PRINT_STRING: | |
1360 | default: | |
1361 | die("invalid eval type %d", arg->type); | |
1362 | break; | |
1363 | } | |
1364 | ||
1365 | return NULL; | |
1366 | } | |
1367 | ||
1368 | static enum event_type | |
1369 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) | |
1370 | { | |
1371 | enum event_type type; | |
1372 | struct print_arg *arg = NULL; | |
1373 | struct print_flag_sym *field; | |
1374 | char *token = NULL; | |
1375 | char *value; | |
1376 | ||
1377 | do { | |
1378 | free_token(token); | |
1379 | type = read_token_item(&token); | |
1380 | if (test_type_token(type, token, EVENT_OP, (char *)"{")) | |
1381 | break; | |
1382 | ||
1383 | arg = malloc_or_die(sizeof(*arg)); | |
1384 | ||
1385 | free_token(token); | |
1386 | type = process_arg(event, arg, &token); | |
1387 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1388 | goto out_free; | |
1389 | ||
1390 | field = malloc_or_die(sizeof(*field)); | |
1391 | memset(field, 0, sizeof(field)); | |
1392 | ||
1393 | value = arg_eval(arg); | |
1394 | field->value = strdup(value); | |
1395 | ||
1396 | free_token(token); | |
1397 | type = process_arg(event, arg, &token); | |
1398 | if (test_type_token(type, token, EVENT_OP, (char *)"}")) | |
1399 | goto out_free; | |
1400 | ||
1401 | value = arg_eval(arg); | |
1402 | field->str = strdup(value); | |
1403 | free_arg(arg); | |
1404 | arg = NULL; | |
1405 | ||
1406 | *list = field; | |
1407 | list = &field->next; | |
1408 | ||
1409 | free_token(token); | |
1410 | type = read_token_item(&token); | |
1411 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); | |
1412 | ||
1413 | *tok = token; | |
1414 | return type; | |
1415 | ||
1416 | out_free: | |
1417 | free_arg(arg); | |
1418 | free_token(token); | |
1419 | ||
1420 | return EVENT_ERROR; | |
1421 | } | |
1422 | ||
1423 | static enum event_type | |
1424 | process_flags(struct event *event, struct print_arg *arg, char **tok) | |
1425 | { | |
1426 | struct print_arg *field; | |
1427 | enum event_type type; | |
1428 | char *token; | |
1429 | ||
1430 | memset(arg, 0, sizeof(*arg)); | |
1431 | arg->type = PRINT_FLAGS; | |
1432 | ||
1433 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1434 | return EVENT_ERROR; | |
1435 | ||
1436 | field = malloc_or_die(sizeof(*field)); | |
1437 | ||
1438 | type = process_arg(event, field, &token); | |
1439 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1440 | goto out_free; | |
1441 | ||
1442 | arg->flags.field = field; | |
1443 | ||
1444 | type = read_token_item(&token); | |
1445 | if (event_item_type(type)) { | |
1446 | arg->flags.delim = token; | |
1447 | type = read_token_item(&token); | |
1448 | } | |
1449 | ||
1450 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1451 | goto out_free; | |
1452 | ||
1453 | type = process_fields(event, &arg->flags.flags, &token); | |
1454 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1455 | goto out_free; | |
1456 | ||
1457 | free_token(token); | |
1458 | type = read_token_item(tok); | |
1459 | return type; | |
1460 | ||
1461 | out_free: | |
1462 | free_token(token); | |
1463 | return EVENT_ERROR; | |
1464 | } | |
1465 | ||
1466 | static enum event_type | |
1467 | process_symbols(struct event *event, struct print_arg *arg, char **tok) | |
1468 | { | |
1469 | struct print_arg *field; | |
1470 | enum event_type type; | |
1471 | char *token; | |
1472 | ||
1473 | memset(arg, 0, sizeof(*arg)); | |
1474 | arg->type = PRINT_SYMBOL; | |
1475 | ||
1476 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1477 | return EVENT_ERROR; | |
1478 | ||
1479 | field = malloc_or_die(sizeof(*field)); | |
1480 | ||
1481 | type = process_arg(event, field, &token); | |
1482 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1483 | goto out_free; | |
1484 | ||
1485 | arg->symbol.field = field; | |
1486 | ||
1487 | type = process_fields(event, &arg->symbol.symbols, &token); | |
1488 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1489 | goto out_free; | |
1490 | ||
1491 | free_token(token); | |
1492 | type = read_token_item(tok); | |
1493 | return type; | |
1494 | ||
1495 | out_free: | |
1496 | free_token(token); | |
1497 | return EVENT_ERROR; | |
1498 | } | |
1499 | ||
1500 | static enum event_type | |
1501 | process_paren(struct event *event, struct print_arg *arg, char **tok) | |
1502 | { | |
1503 | struct print_arg *item_arg; | |
1504 | enum event_type type; | |
3f9edc23 | 1505 | int ptr_cast = 0; |
ea4010d1 SR |
1506 | char *token; |
1507 | ||
1508 | type = process_arg(event, arg, &token); | |
1509 | ||
1510 | if (type == EVENT_ERROR) | |
1511 | return EVENT_ERROR; | |
1512 | ||
3f9edc23 FW |
1513 | if (type == EVENT_OP) { |
1514 | /* handle the ptr casts */ | |
1515 | if (!strcmp(token, "*")) { | |
1516 | /* | |
1517 | * FIXME: should we zapp whitespaces before ')' ? | |
1518 | * (may require a peek_token_item()) | |
1519 | */ | |
1520 | if (__peek_char() == ')') { | |
1521 | ptr_cast = 1; | |
1522 | free_token(token); | |
1523 | type = read_token_item(&token); | |
1524 | } | |
1525 | } | |
1526 | if (!ptr_cast) { | |
1527 | type = process_op(event, arg, &token); | |
ea4010d1 | 1528 | |
3f9edc23 FW |
1529 | if (type == EVENT_ERROR) |
1530 | return EVENT_ERROR; | |
1531 | } | |
1532 | } | |
ea4010d1 SR |
1533 | |
1534 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) { | |
1535 | free_token(token); | |
1536 | return EVENT_ERROR; | |
1537 | } | |
1538 | ||
1539 | free_token(token); | |
1540 | type = read_token_item(&token); | |
1541 | ||
1542 | /* | |
1543 | * If the next token is an item or another open paren, then | |
1544 | * this was a typecast. | |
1545 | */ | |
1546 | if (event_item_type(type) || | |
1547 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { | |
1548 | ||
1549 | /* make this a typecast and contine */ | |
1550 | ||
1551 | /* prevous must be an atom */ | |
1552 | if (arg->type != PRINT_ATOM) | |
1553 | die("previous needed to be PRINT_ATOM"); | |
1554 | ||
1555 | item_arg = malloc_or_die(sizeof(*item_arg)); | |
1556 | ||
1557 | arg->type = PRINT_TYPE; | |
3f9edc23 FW |
1558 | if (ptr_cast) { |
1559 | char *old = arg->atom.atom; | |
1560 | ||
1561 | arg->atom.atom = malloc_or_die(strlen(old + 3)); | |
1562 | sprintf(arg->atom.atom, "%s *", old); | |
1563 | free(old); | |
1564 | } | |
ea4010d1 SR |
1565 | arg->typecast.type = arg->atom.atom; |
1566 | arg->typecast.item = item_arg; | |
1567 | type = process_arg_token(event, item_arg, &token, type); | |
1568 | ||
1569 | } | |
1570 | ||
1571 | *tok = token; | |
1572 | return type; | |
1573 | } | |
1574 | ||
1575 | ||
1576 | static enum event_type | |
1577 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) | |
1578 | { | |
1579 | enum event_type type; | |
1580 | char *token; | |
1581 | ||
1582 | if (read_expected(EVENT_DELIM, (char *)"(") < 0) | |
1583 | return EVENT_ERROR; | |
1584 | ||
1585 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1586 | goto fail; | |
1587 | ||
1588 | arg->type = PRINT_STRING; | |
1589 | arg->string.string = token; | |
561f732c | 1590 | arg->string.offset = -1; |
ea4010d1 SR |
1591 | |
1592 | if (read_expected(EVENT_DELIM, (char *)")") < 0) | |
1593 | return EVENT_ERROR; | |
1594 | ||
1595 | type = read_token(&token); | |
1596 | *tok = token; | |
1597 | ||
1598 | return type; | |
1599 | fail: | |
1600 | free_token(token); | |
1601 | return EVENT_ERROR; | |
1602 | } | |
1603 | ||
1604 | enum event_type | |
1605 | process_arg_token(struct event *event, struct print_arg *arg, | |
1606 | char **tok, enum event_type type) | |
1607 | { | |
1608 | char *token; | |
1609 | char *atom; | |
1610 | ||
1611 | token = *tok; | |
1612 | ||
1613 | switch (type) { | |
1614 | case EVENT_ITEM: | |
1615 | if (strcmp(token, "REC") == 0) { | |
1616 | free_token(token); | |
1617 | type = process_entry(event, arg, &token); | |
1618 | } else if (strcmp(token, "__print_flags") == 0) { | |
1619 | free_token(token); | |
1620 | type = process_flags(event, arg, &token); | |
1621 | } else if (strcmp(token, "__print_symbolic") == 0) { | |
1622 | free_token(token); | |
1623 | type = process_symbols(event, arg, &token); | |
1624 | } else if (strcmp(token, "__get_str") == 0) { | |
1625 | free_token(token); | |
1626 | type = process_str(event, arg, &token); | |
1627 | } else { | |
1628 | atom = token; | |
1629 | /* test the next token */ | |
1630 | type = read_token_item(&token); | |
1631 | ||
1632 | /* atoms can be more than one token long */ | |
1633 | while (type == EVENT_ITEM) { | |
1634 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); | |
1635 | strcat(atom, " "); | |
1636 | strcat(atom, token); | |
1637 | free_token(token); | |
1638 | type = read_token_item(&token); | |
1639 | } | |
1640 | ||
1641 | /* todo, test for function */ | |
1642 | ||
1643 | arg->type = PRINT_ATOM; | |
1644 | arg->atom.atom = atom; | |
1645 | } | |
1646 | break; | |
1647 | case EVENT_DQUOTE: | |
1648 | case EVENT_SQUOTE: | |
1649 | arg->type = PRINT_ATOM; | |
1650 | arg->atom.atom = token; | |
1651 | type = read_token_item(&token); | |
1652 | break; | |
1653 | case EVENT_DELIM: | |
1654 | if (strcmp(token, "(") == 0) { | |
1655 | free_token(token); | |
1656 | type = process_paren(event, arg, &token); | |
1657 | break; | |
1658 | } | |
1659 | case EVENT_OP: | |
1660 | /* handle single ops */ | |
1661 | arg->type = PRINT_OP; | |
1662 | arg->op.op = token; | |
1663 | arg->op.left = NULL; | |
1664 | type = process_op(event, arg, &token); | |
1665 | ||
1666 | break; | |
1667 | ||
1668 | case EVENT_ERROR ... EVENT_NEWLINE: | |
1669 | default: | |
1670 | die("unexpected type %d", type); | |
1671 | } | |
1672 | *tok = token; | |
1673 | ||
1674 | return type; | |
1675 | } | |
1676 | ||
1677 | static int event_read_print_args(struct event *event, struct print_arg **list) | |
1678 | { | |
1679 | enum event_type type; | |
1680 | struct print_arg *arg; | |
1681 | char *token; | |
1682 | int args = 0; | |
1683 | ||
1684 | do { | |
1685 | arg = malloc_or_die(sizeof(*arg)); | |
1686 | memset(arg, 0, sizeof(*arg)); | |
1687 | ||
1688 | type = process_arg(event, arg, &token); | |
1689 | ||
1690 | if (type == EVENT_ERROR) { | |
1691 | free_arg(arg); | |
1692 | return -1; | |
1693 | } | |
1694 | ||
1695 | *list = arg; | |
1696 | args++; | |
1697 | ||
1698 | if (type == EVENT_OP) { | |
1699 | type = process_op(event, arg, &token); | |
1700 | list = &arg->next; | |
1701 | continue; | |
1702 | } | |
1703 | ||
1704 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { | |
1705 | free_token(token); | |
1706 | *list = arg; | |
1707 | list = &arg->next; | |
1708 | continue; | |
1709 | } | |
1710 | break; | |
1711 | } while (type != EVENT_NONE); | |
1712 | ||
1713 | if (type != EVENT_NONE) | |
1714 | free_token(token); | |
1715 | ||
1716 | return args; | |
1717 | } | |
1718 | ||
1719 | static int event_read_print(struct event *event) | |
1720 | { | |
1721 | enum event_type type; | |
1722 | char *token; | |
1723 | int ret; | |
1724 | ||
1725 | if (read_expected_item(EVENT_ITEM, (char *)"print") < 0) | |
1726 | return -1; | |
1727 | ||
1728 | if (read_expected(EVENT_ITEM, (char *)"fmt") < 0) | |
1729 | return -1; | |
1730 | ||
1731 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
1732 | return -1; | |
1733 | ||
1734 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) | |
1735 | goto fail; | |
1736 | ||
1737 | event->print_fmt.format = token; | |
1738 | event->print_fmt.args = NULL; | |
1739 | ||
1740 | /* ok to have no arg */ | |
1741 | type = read_token_item(&token); | |
1742 | ||
1743 | if (type == EVENT_NONE) | |
1744 | return 0; | |
1745 | ||
1746 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1747 | goto fail; | |
1748 | ||
1749 | free_token(token); | |
1750 | ||
1751 | ret = event_read_print_args(event, &event->print_fmt.args); | |
1752 | if (ret < 0) | |
1753 | return -1; | |
1754 | ||
1755 | return 0; | |
1756 | ||
1757 | fail: | |
1758 | free_token(token); | |
1759 | return -1; | |
1760 | } | |
1761 | ||
1762 | static struct format_field * | |
1763 | find_common_field(struct event *event, const char *name) | |
1764 | { | |
1765 | struct format_field *format; | |
1766 | ||
1767 | for (format = event->format.common_fields; | |
1768 | format; format = format->next) { | |
1769 | if (strcmp(format->name, name) == 0) | |
1770 | break; | |
1771 | } | |
1772 | ||
1773 | return format; | |
1774 | } | |
1775 | ||
1776 | static struct format_field * | |
1777 | find_field(struct event *event, const char *name) | |
1778 | { | |
1779 | struct format_field *format; | |
1780 | ||
1781 | for (format = event->format.fields; | |
1782 | format; format = format->next) { | |
1783 | if (strcmp(format->name, name) == 0) | |
1784 | break; | |
1785 | } | |
1786 | ||
1787 | return format; | |
1788 | } | |
1789 | ||
1790 | static struct format_field * | |
1791 | find_any_field(struct event *event, const char *name) | |
1792 | { | |
1793 | struct format_field *format; | |
1794 | ||
1795 | format = find_common_field(event, name); | |
1796 | if (format) | |
1797 | return format; | |
1798 | return find_field(event, name); | |
1799 | } | |
1800 | ||
1801 | static unsigned long long read_size(void *ptr, int size) | |
1802 | { | |
1803 | switch (size) { | |
1804 | case 1: | |
1805 | return *(unsigned char *)ptr; | |
1806 | case 2: | |
1807 | return data2host2(ptr); | |
1808 | case 4: | |
1809 | return data2host4(ptr); | |
1810 | case 8: | |
1811 | return data2host8(ptr); | |
1812 | default: | |
1813 | /* BUG! */ | |
1814 | return 0; | |
1815 | } | |
1816 | } | |
1817 | ||
46538818 FW |
1818 | unsigned long long |
1819 | raw_field_value(struct event *event, const char *name, void *data) | |
1820 | { | |
1821 | struct format_field *field; | |
1822 | ||
1823 | field = find_any_field(event, name); | |
1824 | if (!field) | |
1825 | return 0ULL; | |
1826 | ||
1827 | return read_size(data + field->offset, field->size); | |
1828 | } | |
1829 | ||
1830 | void *raw_field_ptr(struct event *event, const char *name, void *data) | |
1831 | { | |
1832 | struct format_field *field; | |
1833 | ||
1834 | field = find_any_field(event, name); | |
1835 | if (!field) | |
1836 | return NULL; | |
1837 | ||
1838 | return data + field->offset; | |
1839 | } | |
1840 | ||
ea4010d1 SR |
1841 | static int get_common_info(const char *type, int *offset, int *size) |
1842 | { | |
1843 | struct event *event; | |
1844 | struct format_field *field; | |
1845 | ||
1846 | /* | |
1847 | * All events should have the same common elements. | |
1848 | * Pick any event to find where the type is; | |
1849 | */ | |
1850 | if (!event_list) | |
1851 | die("no event_list!"); | |
1852 | ||
1853 | event = event_list; | |
1854 | field = find_common_field(event, type); | |
1855 | if (!field) | |
1856 | die("field '%s' not found", type); | |
1857 | ||
1858 | *offset = field->offset; | |
1859 | *size = field->size; | |
1860 | ||
1861 | return 0; | |
1862 | } | |
1863 | ||
ec156764 | 1864 | int trace_parse_common_type(void *data) |
ea4010d1 SR |
1865 | { |
1866 | static int type_offset; | |
1867 | static int type_size; | |
1868 | int ret; | |
1869 | ||
1870 | if (!type_size) { | |
1871 | ret = get_common_info("common_type", | |
1872 | &type_offset, | |
1873 | &type_size); | |
1874 | if (ret < 0) | |
1875 | return ret; | |
1876 | } | |
1877 | return read_size(data + type_offset, type_size); | |
1878 | } | |
1879 | ||
1880 | static int parse_common_pid(void *data) | |
1881 | { | |
1882 | static int pid_offset; | |
1883 | static int pid_size; | |
1884 | int ret; | |
1885 | ||
1886 | if (!pid_size) { | |
1887 | ret = get_common_info("common_pid", | |
1888 | &pid_offset, | |
1889 | &pid_size); | |
1890 | if (ret < 0) | |
1891 | return ret; | |
1892 | } | |
1893 | ||
1894 | return read_size(data + pid_offset, pid_size); | |
1895 | } | |
1896 | ||
ec156764 | 1897 | struct event *trace_find_event(int id) |
ea4010d1 SR |
1898 | { |
1899 | struct event *event; | |
1900 | ||
1901 | for (event = event_list; event; event = event->next) { | |
1902 | if (event->id == id) | |
1903 | break; | |
1904 | } | |
1905 | return event; | |
1906 | } | |
1907 | ||
1908 | static unsigned long long eval_num_arg(void *data, int size, | |
1909 | struct event *event, struct print_arg *arg) | |
1910 | { | |
1911 | unsigned long long val = 0; | |
1912 | unsigned long long left, right; | |
1913 | ||
1914 | switch (arg->type) { | |
1915 | case PRINT_NULL: | |
1916 | /* ?? */ | |
1917 | return 0; | |
1918 | case PRINT_ATOM: | |
1919 | return strtoull(arg->atom.atom, NULL, 0); | |
1920 | case PRINT_FIELD: | |
1921 | if (!arg->field.field) { | |
1922 | arg->field.field = find_any_field(event, arg->field.name); | |
1923 | if (!arg->field.field) | |
1924 | die("field %s not found", arg->field.name); | |
1925 | } | |
1926 | /* must be a number */ | |
1927 | val = read_size(data + arg->field.field->offset, | |
1928 | arg->field.field->size); | |
1929 | break; | |
1930 | case PRINT_FLAGS: | |
1931 | case PRINT_SYMBOL: | |
1932 | break; | |
1933 | case PRINT_TYPE: | |
1934 | return eval_num_arg(data, size, event, arg->typecast.item); | |
1935 | case PRINT_STRING: | |
1936 | return 0; | |
1937 | break; | |
1938 | case PRINT_OP: | |
1939 | left = eval_num_arg(data, size, event, arg->op.left); | |
1940 | right = eval_num_arg(data, size, event, arg->op.right); | |
1941 | switch (arg->op.op[0]) { | |
1942 | case '|': | |
1943 | if (arg->op.op[1]) | |
1944 | val = left || right; | |
1945 | else | |
1946 | val = left | right; | |
1947 | break; | |
1948 | case '&': | |
1949 | if (arg->op.op[1]) | |
1950 | val = left && right; | |
1951 | else | |
1952 | val = left & right; | |
1953 | break; | |
1954 | case '<': | |
1955 | switch (arg->op.op[1]) { | |
1956 | case 0: | |
1957 | val = left < right; | |
1958 | break; | |
1959 | case '<': | |
1960 | val = left << right; | |
1961 | break; | |
1962 | case '=': | |
1963 | val = left <= right; | |
1964 | break; | |
1965 | default: | |
1966 | die("unknown op '%s'", arg->op.op); | |
1967 | } | |
1968 | break; | |
1969 | case '>': | |
1970 | switch (arg->op.op[1]) { | |
1971 | case 0: | |
1972 | val = left > right; | |
1973 | break; | |
1974 | case '>': | |
1975 | val = left >> right; | |
1976 | break; | |
1977 | case '=': | |
1978 | val = left >= right; | |
1979 | break; | |
1980 | default: | |
1981 | die("unknown op '%s'", arg->op.op); | |
1982 | } | |
1983 | break; | |
1984 | case '=': | |
1985 | if (arg->op.op[1] != '=') | |
1986 | die("unknown op '%s'", arg->op.op); | |
1987 | val = left == right; | |
1988 | break; | |
1989 | default: | |
1990 | die("unknown op '%s'", arg->op.op); | |
1991 | } | |
1992 | break; | |
1993 | default: /* not sure what to do there */ | |
1994 | return 0; | |
1995 | } | |
1996 | return val; | |
1997 | } | |
1998 | ||
1999 | struct flag { | |
2000 | const char *name; | |
2001 | unsigned long long value; | |
2002 | }; | |
2003 | ||
2004 | static const struct flag flags[] = { | |
2005 | { "HI_SOFTIRQ", 0 }, | |
2006 | { "TIMER_SOFTIRQ", 1 }, | |
2007 | { "NET_TX_SOFTIRQ", 2 }, | |
2008 | { "NET_RX_SOFTIRQ", 3 }, | |
2009 | { "BLOCK_SOFTIRQ", 4 }, | |
b934cdd5 TZ |
2010 | { "BLOCK_IOPOLL_SOFTIRQ", 5 }, |
2011 | { "TASKLET_SOFTIRQ", 6 }, | |
2012 | { "SCHED_SOFTIRQ", 7 }, | |
2013 | { "HRTIMER_SOFTIRQ", 8 }, | |
2014 | { "RCU_SOFTIRQ", 9 }, | |
ea4010d1 SR |
2015 | |
2016 | { "HRTIMER_NORESTART", 0 }, | |
2017 | { "HRTIMER_RESTART", 1 }, | |
2018 | }; | |
2019 | ||
2020 | static unsigned long long eval_flag(const char *flag) | |
2021 | { | |
2022 | int i; | |
2023 | ||
2024 | /* | |
2025 | * Some flags in the format files do not get converted. | |
2026 | * If the flag is not numeric, see if it is something that | |
2027 | * we already know about. | |
2028 | */ | |
2029 | if (isdigit(flag[0])) | |
2030 | return strtoull(flag, NULL, 0); | |
2031 | ||
2032 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
2033 | if (strcmp(flags[i].name, flag) == 0) | |
2034 | return flags[i].value; | |
2035 | ||
2036 | return 0; | |
2037 | } | |
2038 | ||
2039 | static void print_str_arg(void *data, int size, | |
2040 | struct event *event, struct print_arg *arg) | |
2041 | { | |
2042 | struct print_flag_sym *flag; | |
2043 | unsigned long long val, fval; | |
2044 | char *str; | |
2045 | int print; | |
2046 | ||
2047 | switch (arg->type) { | |
2048 | case PRINT_NULL: | |
2049 | /* ?? */ | |
2050 | return; | |
2051 | case PRINT_ATOM: | |
2052 | printf("%s", arg->atom.atom); | |
2053 | return; | |
2054 | case PRINT_FIELD: | |
2055 | if (!arg->field.field) { | |
2056 | arg->field.field = find_any_field(event, arg->field.name); | |
2057 | if (!arg->field.field) | |
2058 | die("field %s not found", arg->field.name); | |
2059 | } | |
2060 | str = malloc_or_die(arg->field.field->size + 1); | |
2061 | memcpy(str, data + arg->field.field->offset, | |
2062 | arg->field.field->size); | |
2063 | str[arg->field.field->size] = 0; | |
d498bc1f | 2064 | printf("%s", str); |
ea4010d1 SR |
2065 | free(str); |
2066 | break; | |
2067 | case PRINT_FLAGS: | |
2068 | val = eval_num_arg(data, size, event, arg->flags.field); | |
2069 | print = 0; | |
2070 | for (flag = arg->flags.flags; flag; flag = flag->next) { | |
2071 | fval = eval_flag(flag->value); | |
2072 | if (!val && !fval) { | |
2073 | printf("%s", flag->str); | |
2074 | break; | |
2075 | } | |
2076 | if (fval && (val & fval) == fval) { | |
2077 | if (print && arg->flags.delim) | |
2078 | printf("%s", arg->flags.delim); | |
2079 | printf("%s", flag->str); | |
2080 | print = 1; | |
2081 | val &= ~fval; | |
2082 | } | |
2083 | } | |
2084 | break; | |
2085 | case PRINT_SYMBOL: | |
2086 | val = eval_num_arg(data, size, event, arg->symbol.field); | |
2087 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { | |
2088 | fval = eval_flag(flag->value); | |
2089 | if (val == fval) { | |
2090 | printf("%s", flag->str); | |
2091 | break; | |
2092 | } | |
2093 | } | |
2094 | break; | |
2095 | ||
2096 | case PRINT_TYPE: | |
2097 | break; | |
561f732c FW |
2098 | case PRINT_STRING: { |
2099 | int str_offset; | |
2100 | ||
2101 | if (arg->string.offset == -1) { | |
2102 | struct format_field *f; | |
2103 | ||
2104 | f = find_any_field(event, arg->string.string); | |
2105 | arg->string.offset = f->offset; | |
2106 | } | |
2107 | str_offset = *(int *)(data + arg->string.offset); | |
2108 | str_offset &= 0xffff; | |
2109 | printf("%s", ((char *)data) + str_offset); | |
ea4010d1 | 2110 | break; |
561f732c | 2111 | } |
ea4010d1 SR |
2112 | case PRINT_OP: |
2113 | /* | |
2114 | * The only op for string should be ? : | |
2115 | */ | |
2116 | if (arg->op.op[0] != '?') | |
2117 | return; | |
2118 | val = eval_num_arg(data, size, event, arg->op.left); | |
2119 | if (val) | |
2120 | print_str_arg(data, size, event, arg->op.right->op.left); | |
2121 | else | |
2122 | print_str_arg(data, size, event, arg->op.right->op.right); | |
2123 | break; | |
2124 | default: | |
2125 | /* well... */ | |
2126 | break; | |
2127 | } | |
2128 | } | |
2129 | ||
2130 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) | |
2131 | { | |
2132 | static struct format_field *field, *ip_field; | |
2133 | struct print_arg *args, *arg, **next; | |
2134 | unsigned long long ip, val; | |
2135 | char *ptr; | |
2136 | void *bptr; | |
2137 | ||
2138 | if (!field) { | |
2139 | field = find_field(event, "buf"); | |
2140 | if (!field) | |
2141 | die("can't find buffer field for binary printk"); | |
2142 | ip_field = find_field(event, "ip"); | |
2143 | if (!ip_field) | |
2144 | die("can't find ip field for binary printk"); | |
2145 | } | |
2146 | ||
2147 | ip = read_size(data + ip_field->offset, ip_field->size); | |
2148 | ||
2149 | /* | |
2150 | * The first arg is the IP pointer. | |
2151 | */ | |
2152 | args = malloc_or_die(sizeof(*args)); | |
2153 | arg = args; | |
2154 | arg->next = NULL; | |
2155 | next = &arg->next; | |
2156 | ||
2157 | arg->type = PRINT_ATOM; | |
2158 | arg->atom.atom = malloc_or_die(32); | |
2159 | sprintf(arg->atom.atom, "%lld", ip); | |
2160 | ||
2161 | /* skip the first "%pf : " */ | |
2162 | for (ptr = fmt + 6, bptr = data + field->offset; | |
2163 | bptr < data + size && *ptr; ptr++) { | |
2164 | int ls = 0; | |
2165 | ||
2166 | if (*ptr == '%') { | |
2167 | process_again: | |
2168 | ptr++; | |
2169 | switch (*ptr) { | |
2170 | case '%': | |
2171 | break; | |
2172 | case 'l': | |
2173 | ls++; | |
2174 | goto process_again; | |
2175 | case 'L': | |
2176 | ls = 2; | |
2177 | goto process_again; | |
2178 | case '0' ... '9': | |
2179 | goto process_again; | |
2180 | case 'p': | |
2181 | ls = 1; | |
2182 | /* fall through */ | |
2183 | case 'd': | |
2184 | case 'u': | |
2185 | case 'x': | |
2186 | case 'i': | |
2187 | bptr = (void *)(((unsigned long)bptr + (long_size - 1)) & | |
2188 | ~(long_size - 1)); | |
2189 | switch (ls) { | |
2190 | case 0: | |
2191 | case 1: | |
2192 | ls = long_size; | |
2193 | break; | |
2194 | case 2: | |
2195 | ls = 8; | |
2196 | default: | |
2197 | break; | |
2198 | } | |
2199 | val = read_size(bptr, ls); | |
2200 | bptr += ls; | |
2201 | arg = malloc_or_die(sizeof(*arg)); | |
2202 | arg->next = NULL; | |
2203 | arg->type = PRINT_ATOM; | |
2204 | arg->atom.atom = malloc_or_die(32); | |
2205 | sprintf(arg->atom.atom, "%lld", val); | |
2206 | *next = arg; | |
2207 | next = &arg->next; | |
2208 | break; | |
2209 | case 's': | |
2210 | arg = malloc_or_die(sizeof(*arg)); | |
2211 | arg->next = NULL; | |
2212 | arg->type = PRINT_STRING; | |
2213 | arg->string.string = strdup(bptr); | |
2214 | bptr += strlen(bptr) + 1; | |
2215 | *next = arg; | |
2216 | next = &arg->next; | |
2217 | default: | |
2218 | break; | |
2219 | } | |
2220 | } | |
2221 | } | |
2222 | ||
2223 | return args; | |
2224 | } | |
2225 | ||
2226 | static void free_args(struct print_arg *args) | |
2227 | { | |
2228 | struct print_arg *next; | |
2229 | ||
2230 | while (args) { | |
2231 | next = args->next; | |
2232 | ||
2233 | if (args->type == PRINT_ATOM) | |
2234 | free(args->atom.atom); | |
2235 | else | |
2236 | free(args->string.string); | |
2237 | free(args); | |
2238 | args = next; | |
2239 | } | |
2240 | } | |
2241 | ||
2242 | static char *get_bprint_format(void *data, int size __unused, struct event *event) | |
2243 | { | |
2244 | unsigned long long addr; | |
2245 | static struct format_field *field; | |
2246 | struct printk_map *printk; | |
2247 | char *format; | |
2248 | char *p; | |
2249 | ||
2250 | if (!field) { | |
2251 | field = find_field(event, "fmt"); | |
2252 | if (!field) | |
2253 | die("can't find format field for binary printk"); | |
2254 | printf("field->offset = %d size=%d\n", field->offset, field->size); | |
2255 | } | |
2256 | ||
2257 | addr = read_size(data + field->offset, field->size); | |
2258 | ||
2259 | printk = find_printk(addr); | |
2260 | if (!printk) { | |
2261 | format = malloc_or_die(45); | |
2262 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", | |
2263 | addr); | |
2264 | return format; | |
2265 | } | |
2266 | ||
2267 | p = printk->printk; | |
2268 | /* Remove any quotes. */ | |
2269 | if (*p == '"') | |
2270 | p++; | |
2271 | format = malloc_or_die(strlen(p) + 10); | |
2272 | sprintf(format, "%s : %s", "%pf", p); | |
2273 | /* remove ending quotes and new line since we will add one too */ | |
2274 | p = format + strlen(format) - 1; | |
2275 | if (*p == '"') | |
2276 | *p = 0; | |
2277 | ||
2278 | p -= 2; | |
2279 | if (strcmp(p, "\\n") == 0) | |
2280 | *p = 0; | |
2281 | ||
2282 | return format; | |
2283 | } | |
2284 | ||
2285 | static void pretty_print(void *data, int size, struct event *event) | |
2286 | { | |
2287 | struct print_fmt *print_fmt = &event->print_fmt; | |
2288 | struct print_arg *arg = print_fmt->args; | |
2289 | struct print_arg *args = NULL; | |
2290 | const char *ptr = print_fmt->format; | |
2291 | unsigned long long val; | |
2292 | struct func_map *func; | |
2293 | const char *saveptr; | |
2294 | char *bprint_fmt = NULL; | |
2295 | char format[32]; | |
2296 | int show_func; | |
2297 | int len; | |
2298 | int ls; | |
2299 | ||
2300 | if (event->flags & EVENT_FL_ISFUNC) | |
2301 | ptr = " %pF <-- %pF"; | |
2302 | ||
2303 | if (event->flags & EVENT_FL_ISBPRINT) { | |
2304 | bprint_fmt = get_bprint_format(data, size, event); | |
2305 | args = make_bprint_args(bprint_fmt, data, size, event); | |
2306 | arg = args; | |
2307 | ptr = bprint_fmt; | |
2308 | } | |
2309 | ||
2310 | for (; *ptr; ptr++) { | |
2311 | ls = 0; | |
2312 | if (*ptr == '%') { | |
2313 | saveptr = ptr; | |
2314 | show_func = 0; | |
2315 | cont_process: | |
2316 | ptr++; | |
2317 | switch (*ptr) { | |
2318 | case '%': | |
2319 | printf("%%"); | |
2320 | break; | |
2321 | case 'l': | |
2322 | ls++; | |
2323 | goto cont_process; | |
2324 | case 'L': | |
2325 | ls = 2; | |
2326 | goto cont_process; | |
2327 | case 'z': | |
2328 | case 'Z': | |
2329 | case '0' ... '9': | |
2330 | goto cont_process; | |
2331 | case 'p': | |
2332 | if (long_size == 4) | |
2333 | ls = 1; | |
2334 | else | |
2335 | ls = 2; | |
2336 | ||
2337 | if (*(ptr+1) == 'F' || | |
2338 | *(ptr+1) == 'f') { | |
2339 | ptr++; | |
2340 | show_func = *ptr; | |
2341 | } | |
2342 | ||
2343 | /* fall through */ | |
2344 | case 'd': | |
2345 | case 'i': | |
2346 | case 'x': | |
2347 | case 'X': | |
2348 | case 'u': | |
2349 | if (!arg) | |
2350 | die("no argument match"); | |
2351 | ||
2352 | len = ((unsigned long)ptr + 1) - | |
2353 | (unsigned long)saveptr; | |
2354 | ||
2355 | /* should never happen */ | |
2356 | if (len > 32) | |
2357 | die("bad format!"); | |
2358 | ||
2359 | memcpy(format, saveptr, len); | |
2360 | format[len] = 0; | |
2361 | ||
2362 | val = eval_num_arg(data, size, event, arg); | |
2363 | arg = arg->next; | |
2364 | ||
2365 | if (show_func) { | |
2366 | func = find_func(val); | |
2367 | if (func) { | |
2368 | printf("%s", func->func); | |
2369 | if (show_func == 'F') | |
2370 | printf("+0x%llx", | |
2371 | val - func->addr); | |
2372 | break; | |
2373 | } | |
2374 | } | |
2375 | switch (ls) { | |
2376 | case 0: | |
2377 | printf(format, (int)val); | |
2378 | break; | |
2379 | case 1: | |
2380 | printf(format, (long)val); | |
2381 | break; | |
2382 | case 2: | |
2383 | printf(format, (long long)val); | |
2384 | break; | |
2385 | default: | |
2386 | die("bad count (%d)", ls); | |
2387 | } | |
2388 | break; | |
2389 | case 's': | |
2390 | if (!arg) | |
2391 | die("no matching argument"); | |
2392 | ||
2393 | print_str_arg(data, size, event, arg); | |
2394 | arg = arg->next; | |
2395 | break; | |
2396 | default: | |
2397 | printf(">%c<", *ptr); | |
2398 | ||
2399 | } | |
2400 | } else | |
2401 | printf("%c", *ptr); | |
2402 | } | |
2403 | ||
2404 | if (args) { | |
2405 | free_args(args); | |
2406 | free(bprint_fmt); | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | static inline int log10_cpu(int nb) | |
2411 | { | |
2412 | if (nb / 100) | |
2413 | return 3; | |
2414 | if (nb / 10) | |
2415 | return 2; | |
2416 | return 1; | |
2417 | } | |
2418 | ||
2419 | /* taken from Linux, written by Frederic Weisbecker */ | |
2420 | static void print_graph_cpu(int cpu) | |
2421 | { | |
2422 | int i; | |
2423 | int log10_this = log10_cpu(cpu); | |
2424 | int log10_all = log10_cpu(cpus); | |
2425 | ||
2426 | ||
2427 | /* | |
2428 | * Start with a space character - to make it stand out | |
2429 | * to the right a bit when trace output is pasted into | |
2430 | * email: | |
2431 | */ | |
2432 | printf(" "); | |
2433 | ||
2434 | /* | |
2435 | * Tricky - we space the CPU field according to the max | |
2436 | * number of online CPUs. On a 2-cpu system it would take | |
2437 | * a maximum of 1 digit - on a 128 cpu system it would | |
2438 | * take up to 3 digits: | |
2439 | */ | |
2440 | for (i = 0; i < log10_all - log10_this; i++) | |
2441 | printf(" "); | |
2442 | ||
2443 | printf("%d) ", cpu); | |
2444 | } | |
2445 | ||
2446 | #define TRACE_GRAPH_PROCINFO_LENGTH 14 | |
2447 | #define TRACE_GRAPH_INDENT 2 | |
2448 | ||
2449 | static void print_graph_proc(int pid, const char *comm) | |
2450 | { | |
2451 | /* sign + log10(MAX_INT) + '\0' */ | |
2452 | char pid_str[11]; | |
2453 | int spaces = 0; | |
2454 | int len; | |
2455 | int i; | |
2456 | ||
2457 | sprintf(pid_str, "%d", pid); | |
2458 | ||
2459 | /* 1 stands for the "-" character */ | |
2460 | len = strlen(comm) + strlen(pid_str) + 1; | |
2461 | ||
2462 | if (len < TRACE_GRAPH_PROCINFO_LENGTH) | |
2463 | spaces = TRACE_GRAPH_PROCINFO_LENGTH - len; | |
2464 | ||
2465 | /* First spaces to align center */ | |
2466 | for (i = 0; i < spaces / 2; i++) | |
2467 | printf(" "); | |
2468 | ||
2469 | printf("%s-%s", comm, pid_str); | |
2470 | ||
2471 | /* Last spaces to align center */ | |
2472 | for (i = 0; i < spaces - (spaces / 2); i++) | |
2473 | printf(" "); | |
2474 | } | |
2475 | ||
2476 | static struct record * | |
2477 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, | |
2478 | struct record *next) | |
2479 | { | |
2480 | struct format_field *field; | |
2481 | struct event *event; | |
2482 | unsigned long val; | |
2483 | int type; | |
2484 | int pid; | |
2485 | ||
ec156764 IM |
2486 | type = trace_parse_common_type(next->data); |
2487 | event = trace_find_event(type); | |
ea4010d1 SR |
2488 | if (!event) |
2489 | return NULL; | |
2490 | ||
2491 | if (!(event->flags & EVENT_FL_ISFUNCRET)) | |
2492 | return NULL; | |
2493 | ||
2494 | pid = parse_common_pid(next->data); | |
2495 | field = find_field(event, "func"); | |
2496 | if (!field) | |
2497 | die("function return does not have field func"); | |
2498 | ||
2499 | val = read_size(next->data + field->offset, field->size); | |
2500 | ||
2501 | if (cur_pid != pid || cur_func != val) | |
2502 | return NULL; | |
2503 | ||
2504 | /* this is a leaf, now advance the iterator */ | |
2505 | return trace_read_data(cpu); | |
2506 | } | |
2507 | ||
2508 | /* Signal a overhead of time execution to the output */ | |
2509 | static void print_graph_overhead(unsigned long long duration) | |
2510 | { | |
2511 | /* Non nested entry or return */ | |
2512 | if (duration == ~0ULL) | |
2513 | return (void)printf(" "); | |
2514 | ||
2515 | /* Duration exceeded 100 msecs */ | |
2516 | if (duration > 100000ULL) | |
2517 | return (void)printf("! "); | |
2518 | ||
2519 | /* Duration exceeded 10 msecs */ | |
2520 | if (duration > 10000ULL) | |
2521 | return (void)printf("+ "); | |
2522 | ||
2523 | printf(" "); | |
2524 | } | |
2525 | ||
2526 | static void print_graph_duration(unsigned long long duration) | |
2527 | { | |
2528 | unsigned long usecs = duration / 1000; | |
2529 | unsigned long nsecs_rem = duration % 1000; | |
2530 | /* log10(ULONG_MAX) + '\0' */ | |
2531 | char msecs_str[21]; | |
2532 | char nsecs_str[5]; | |
2533 | int len; | |
2534 | int i; | |
2535 | ||
2536 | sprintf(msecs_str, "%lu", usecs); | |
2537 | ||
2538 | /* Print msecs */ | |
2539 | len = printf("%lu", usecs); | |
2540 | ||
2541 | /* Print nsecs (we don't want to exceed 7 numbers) */ | |
2542 | if (len < 7) { | |
2543 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); | |
2544 | len += printf(".%s", nsecs_str); | |
2545 | } | |
2546 | ||
2547 | printf(" us "); | |
2548 | ||
2549 | /* Print remaining spaces to fit the row's width */ | |
2550 | for (i = len; i < 7; i++) | |
2551 | printf(" "); | |
2552 | ||
2553 | printf("| "); | |
2554 | } | |
2555 | ||
2556 | static void | |
2557 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) | |
2558 | { | |
2559 | unsigned long long rettime, calltime; | |
2560 | unsigned long long duration, depth; | |
2561 | unsigned long long val; | |
2562 | struct format_field *field; | |
2563 | struct func_map *func; | |
2564 | struct event *ret_event; | |
2565 | int type; | |
2566 | int i; | |
2567 | ||
ec156764 IM |
2568 | type = trace_parse_common_type(ret_rec->data); |
2569 | ret_event = trace_find_event(type); | |
ea4010d1 SR |
2570 | |
2571 | field = find_field(ret_event, "rettime"); | |
2572 | if (!field) | |
2573 | die("can't find rettime in return graph"); | |
2574 | rettime = read_size(ret_rec->data + field->offset, field->size); | |
2575 | ||
2576 | field = find_field(ret_event, "calltime"); | |
2577 | if (!field) | |
2578 | die("can't find rettime in return graph"); | |
2579 | calltime = read_size(ret_rec->data + field->offset, field->size); | |
2580 | ||
2581 | duration = rettime - calltime; | |
2582 | ||
2583 | /* Overhead */ | |
2584 | print_graph_overhead(duration); | |
2585 | ||
2586 | /* Duration */ | |
2587 | print_graph_duration(duration); | |
2588 | ||
2589 | field = find_field(event, "depth"); | |
2590 | if (!field) | |
2591 | die("can't find depth in entry graph"); | |
2592 | depth = read_size(data + field->offset, field->size); | |
2593 | ||
2594 | /* Function */ | |
2595 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2596 | printf(" "); | |
2597 | ||
2598 | field = find_field(event, "func"); | |
2599 | if (!field) | |
2600 | die("can't find func in entry graph"); | |
2601 | val = read_size(data + field->offset, field->size); | |
2602 | func = find_func(val); | |
2603 | ||
2604 | if (func) | |
2605 | printf("%s();", func->func); | |
2606 | else | |
2607 | printf("%llx();", val); | |
2608 | } | |
2609 | ||
2610 | static void print_graph_nested(struct event *event, void *data) | |
2611 | { | |
2612 | struct format_field *field; | |
2613 | unsigned long long depth; | |
2614 | unsigned long long val; | |
2615 | struct func_map *func; | |
2616 | int i; | |
2617 | ||
2618 | /* No overhead */ | |
2619 | print_graph_overhead(-1); | |
2620 | ||
2621 | /* No time */ | |
2622 | printf(" | "); | |
2623 | ||
2624 | field = find_field(event, "depth"); | |
2625 | if (!field) | |
2626 | die("can't find depth in entry graph"); | |
2627 | depth = read_size(data + field->offset, field->size); | |
2628 | ||
2629 | /* Function */ | |
2630 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2631 | printf(" "); | |
2632 | ||
2633 | field = find_field(event, "func"); | |
2634 | if (!field) | |
2635 | die("can't find func in entry graph"); | |
2636 | val = read_size(data + field->offset, field->size); | |
2637 | func = find_func(val); | |
2638 | ||
2639 | if (func) | |
2640 | printf("%s() {", func->func); | |
2641 | else | |
2642 | printf("%llx() {", val); | |
2643 | } | |
2644 | ||
2645 | static void | |
2646 | pretty_print_func_ent(void *data, int size, struct event *event, | |
2647 | int cpu, int pid, const char *comm, | |
2648 | unsigned long secs, unsigned long usecs) | |
2649 | { | |
2650 | struct format_field *field; | |
2651 | struct record *rec; | |
2652 | void *copy_data; | |
2653 | unsigned long val; | |
2654 | ||
2655 | printf("%5lu.%06lu | ", secs, usecs); | |
2656 | ||
2657 | print_graph_cpu(cpu); | |
2658 | print_graph_proc(pid, comm); | |
2659 | ||
2660 | printf(" | "); | |
2661 | ||
2662 | field = find_field(event, "func"); | |
2663 | if (!field) | |
2664 | die("function entry does not have func field"); | |
2665 | ||
2666 | val = read_size(data + field->offset, field->size); | |
2667 | ||
2668 | /* | |
2669 | * peek_data may unmap the data pointer. Copy it first. | |
2670 | */ | |
2671 | copy_data = malloc_or_die(size); | |
2672 | memcpy(copy_data, data, size); | |
2673 | data = copy_data; | |
2674 | ||
2675 | rec = trace_peek_data(cpu); | |
2676 | if (rec) { | |
2677 | rec = get_return_for_leaf(cpu, pid, val, rec); | |
2678 | if (rec) { | |
2679 | print_graph_entry_leaf(event, data, rec); | |
2680 | goto out_free; | |
2681 | } | |
2682 | } | |
2683 | print_graph_nested(event, data); | |
2684 | out_free: | |
2685 | free(data); | |
2686 | } | |
2687 | ||
2688 | static void | |
2689 | pretty_print_func_ret(void *data, int size __unused, struct event *event, | |
2690 | int cpu, int pid, const char *comm, | |
2691 | unsigned long secs, unsigned long usecs) | |
2692 | { | |
2693 | unsigned long long rettime, calltime; | |
2694 | unsigned long long duration, depth; | |
2695 | struct format_field *field; | |
2696 | int i; | |
2697 | ||
2698 | printf("%5lu.%06lu | ", secs, usecs); | |
2699 | ||
2700 | print_graph_cpu(cpu); | |
2701 | print_graph_proc(pid, comm); | |
2702 | ||
2703 | printf(" | "); | |
2704 | ||
2705 | field = find_field(event, "rettime"); | |
2706 | if (!field) | |
2707 | die("can't find rettime in return graph"); | |
2708 | rettime = read_size(data + field->offset, field->size); | |
2709 | ||
2710 | field = find_field(event, "calltime"); | |
2711 | if (!field) | |
2712 | die("can't find calltime in return graph"); | |
2713 | calltime = read_size(data + field->offset, field->size); | |
2714 | ||
2715 | duration = rettime - calltime; | |
2716 | ||
2717 | /* Overhead */ | |
2718 | print_graph_overhead(duration); | |
2719 | ||
2720 | /* Duration */ | |
2721 | print_graph_duration(duration); | |
2722 | ||
2723 | field = find_field(event, "depth"); | |
2724 | if (!field) | |
2725 | die("can't find depth in entry graph"); | |
2726 | depth = read_size(data + field->offset, field->size); | |
2727 | ||
2728 | /* Function */ | |
2729 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2730 | printf(" "); | |
2731 | ||
2732 | printf("}"); | |
2733 | } | |
2734 | ||
2735 | static void | |
2736 | pretty_print_func_graph(void *data, int size, struct event *event, | |
2737 | int cpu, int pid, const char *comm, | |
2738 | unsigned long secs, unsigned long usecs) | |
2739 | { | |
2740 | if (event->flags & EVENT_FL_ISFUNCENT) | |
2741 | pretty_print_func_ent(data, size, event, | |
2742 | cpu, pid, comm, secs, usecs); | |
2743 | else if (event->flags & EVENT_FL_ISFUNCRET) | |
2744 | pretty_print_func_ret(data, size, event, | |
2745 | cpu, pid, comm, secs, usecs); | |
2746 | printf("\n"); | |
2747 | } | |
2748 | ||
2749 | void print_event(int cpu, void *data, int size, unsigned long long nsecs, | |
2750 | char *comm) | |
2751 | { | |
2752 | struct event *event; | |
2753 | unsigned long secs; | |
2754 | unsigned long usecs; | |
2755 | int type; | |
2756 | int pid; | |
2757 | ||
2758 | secs = nsecs / NSECS_PER_SEC; | |
2759 | nsecs -= secs * NSECS_PER_SEC; | |
2760 | usecs = nsecs / NSECS_PER_USEC; | |
2761 | ||
ec156764 | 2762 | type = trace_parse_common_type(data); |
ea4010d1 | 2763 | |
ec156764 | 2764 | event = trace_find_event(type); |
ea57c4f5 IM |
2765 | if (!event) { |
2766 | printf("ug! no event found for type %d\n", type); | |
2767 | return; | |
2768 | } | |
ea4010d1 SR |
2769 | |
2770 | pid = parse_common_pid(data); | |
2771 | ||
2772 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) | |
2773 | return pretty_print_func_graph(data, size, event, cpu, | |
2774 | pid, comm, secs, usecs); | |
2775 | ||
00fc9786 | 2776 | printf("%16s-%-5d [%03d] %5lu.%09Lu: %s: ", |
ea4010d1 | 2777 | comm, pid, cpu, |
00fc9786 | 2778 | secs, nsecs, event->name); |
ea4010d1 SR |
2779 | |
2780 | pretty_print(data, size, event); | |
2781 | printf("\n"); | |
2782 | } | |
2783 | ||
2784 | static void print_fields(struct print_flag_sym *field) | |
2785 | { | |
2786 | printf("{ %s, %s }", field->value, field->str); | |
2787 | if (field->next) { | |
2788 | printf(", "); | |
2789 | print_fields(field->next); | |
2790 | } | |
2791 | } | |
2792 | ||
2793 | static void print_args(struct print_arg *args) | |
2794 | { | |
2795 | int print_paren = 1; | |
2796 | ||
2797 | switch (args->type) { | |
2798 | case PRINT_NULL: | |
2799 | printf("null"); | |
2800 | break; | |
2801 | case PRINT_ATOM: | |
2802 | printf("%s", args->atom.atom); | |
2803 | break; | |
2804 | case PRINT_FIELD: | |
2805 | printf("REC->%s", args->field.name); | |
2806 | break; | |
2807 | case PRINT_FLAGS: | |
2808 | printf("__print_flags("); | |
2809 | print_args(args->flags.field); | |
2810 | printf(", %s, ", args->flags.delim); | |
2811 | print_fields(args->flags.flags); | |
2812 | printf(")"); | |
2813 | break; | |
2814 | case PRINT_SYMBOL: | |
2815 | printf("__print_symbolic("); | |
2816 | print_args(args->symbol.field); | |
2817 | printf(", "); | |
2818 | print_fields(args->symbol.symbols); | |
2819 | printf(")"); | |
2820 | break; | |
2821 | case PRINT_STRING: | |
2822 | printf("__get_str(%s)", args->string.string); | |
2823 | break; | |
2824 | case PRINT_TYPE: | |
2825 | printf("(%s)", args->typecast.type); | |
2826 | print_args(args->typecast.item); | |
2827 | break; | |
2828 | case PRINT_OP: | |
2829 | if (strcmp(args->op.op, ":") == 0) | |
2830 | print_paren = 0; | |
2831 | if (print_paren) | |
2832 | printf("("); | |
2833 | print_args(args->op.left); | |
2834 | printf(" %s ", args->op.op); | |
2835 | print_args(args->op.right); | |
2836 | if (print_paren) | |
2837 | printf(")"); | |
2838 | break; | |
2839 | default: | |
2840 | /* we should warn... */ | |
2841 | return; | |
2842 | } | |
2843 | if (args->next) { | |
2844 | printf("\n"); | |
2845 | print_args(args->next); | |
2846 | } | |
2847 | } | |
2848 | ||
2849 | static void parse_header_field(char *type, | |
2850 | int *offset, int *size) | |
2851 | { | |
2852 | char *token; | |
2853 | ||
2854 | if (read_expected(EVENT_ITEM, (char *)"field") < 0) | |
2855 | return; | |
2856 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2857 | return; | |
2858 | /* type */ | |
2859 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2860 | return; | |
2861 | free_token(token); | |
2862 | ||
2863 | if (read_expected(EVENT_ITEM, type) < 0) | |
2864 | return; | |
2865 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2866 | return; | |
2867 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
2868 | return; | |
2869 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2870 | return; | |
2871 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2872 | return; | |
2873 | *offset = atoi(token); | |
2874 | free_token(token); | |
2875 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2876 | return; | |
2877 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
2878 | return; | |
2879 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2880 | return; | |
2881 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2882 | return; | |
2883 | *size = atoi(token); | |
2884 | free_token(token); | |
26a50744 TZ |
2885 | if (read_expected(EVENT_OP, (char *)";") < 0) |
2886 | return; | |
2887 | if (read_expected(EVENT_ITEM, (char *)"signed") < 0) | |
2888 | return; | |
2889 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2890 | return; | |
2891 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
2892 | return; | |
2893 | free_token(token); | |
ea4010d1 SR |
2894 | if (read_expected(EVENT_OP, (char *)";") < 0) |
2895 | return; | |
2896 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) | |
2897 | return; | |
2898 | free_token(token); | |
2899 | } | |
2900 | ||
2901 | int parse_header_page(char *buf, unsigned long size) | |
2902 | { | |
2903 | init_input_buf(buf, size); | |
2904 | ||
2905 | parse_header_field((char *)"timestamp", &header_page_ts_offset, | |
2906 | &header_page_ts_size); | |
2907 | parse_header_field((char *)"commit", &header_page_size_offset, | |
2908 | &header_page_size_size); | |
2909 | parse_header_field((char *)"data", &header_page_data_offset, | |
2910 | &header_page_data_size); | |
2911 | ||
2912 | return 0; | |
2913 | } | |
2914 | ||
2915 | int parse_ftrace_file(char *buf, unsigned long size) | |
2916 | { | |
2917 | struct format_field *field; | |
2918 | struct print_arg *arg, **list; | |
2919 | struct event *event; | |
2920 | int ret; | |
2921 | ||
2922 | init_input_buf(buf, size); | |
2923 | ||
2924 | event = alloc_event(); | |
2925 | if (!event) | |
2926 | return -ENOMEM; | |
2927 | ||
2928 | event->flags |= EVENT_FL_ISFTRACE; | |
2929 | ||
2930 | event->name = event_read_name(); | |
2931 | if (!event->name) | |
2932 | die("failed to read ftrace event name"); | |
2933 | ||
2934 | if (strcmp(event->name, "function") == 0) | |
2935 | event->flags |= EVENT_FL_ISFUNC; | |
2936 | ||
2937 | else if (strcmp(event->name, "funcgraph_entry") == 0) | |
2938 | event->flags |= EVENT_FL_ISFUNCENT; | |
2939 | ||
2940 | else if (strcmp(event->name, "funcgraph_exit") == 0) | |
2941 | event->flags |= EVENT_FL_ISFUNCRET; | |
2942 | ||
2943 | else if (strcmp(event->name, "bprint") == 0) | |
2944 | event->flags |= EVENT_FL_ISBPRINT; | |
2945 | ||
2946 | event->id = event_read_id(); | |
2947 | if (event->id < 0) | |
2948 | die("failed to read ftrace event id"); | |
2949 | ||
2950 | add_event(event); | |
2951 | ||
2952 | ret = event_read_format(event); | |
2953 | if (ret < 0) | |
2954 | die("failed to read ftrace event format"); | |
2955 | ||
2956 | ret = event_read_print(event); | |
2957 | if (ret < 0) | |
2958 | die("failed to read ftrace event print fmt"); | |
2959 | ||
2960 | /* | |
2961 | * The arguments for ftrace files are parsed by the fields. | |
2962 | * Set up the fields as their arguments. | |
2963 | */ | |
2964 | list = &event->print_fmt.args; | |
2965 | for (field = event->format.fields; field; field = field->next) { | |
2966 | arg = malloc_or_die(sizeof(*arg)); | |
2967 | memset(arg, 0, sizeof(*arg)); | |
2968 | *list = arg; | |
2969 | list = &arg->next; | |
2970 | arg->type = PRINT_FIELD; | |
2971 | arg->field.name = field->name; | |
2972 | arg->field.field = field; | |
2973 | } | |
2974 | return 0; | |
2975 | } | |
2976 | ||
27746018 | 2977 | int parse_event_file(char *buf, unsigned long size, char *sys) |
ea4010d1 SR |
2978 | { |
2979 | struct event *event; | |
2980 | int ret; | |
2981 | ||
2982 | init_input_buf(buf, size); | |
2983 | ||
2984 | event = alloc_event(); | |
2985 | if (!event) | |
2986 | return -ENOMEM; | |
2987 | ||
2988 | event->name = event_read_name(); | |
2989 | if (!event->name) | |
2990 | die("failed to read event name"); | |
2991 | ||
2992 | event->id = event_read_id(); | |
2993 | if (event->id < 0) | |
2994 | die("failed to read event id"); | |
2995 | ||
2996 | ret = event_read_format(event); | |
2997 | if (ret < 0) | |
2998 | die("failed to read event format"); | |
2999 | ||
3000 | ret = event_read_print(event); | |
3001 | if (ret < 0) | |
3002 | die("failed to read event print fmt"); | |
3003 | ||
27746018 TZ |
3004 | event->system = strdup(sys); |
3005 | ||
ea4010d1 SR |
3006 | #define PRINT_ARGS 0 |
3007 | if (PRINT_ARGS && event->print_fmt.args) | |
3008 | print_args(event->print_fmt.args); | |
3009 | ||
3010 | add_event(event); | |
3011 | return 0; | |
3012 | } | |
3013 | ||
3014 | void parse_set_info(int nr_cpus, int long_sz) | |
3015 | { | |
3016 | cpus = nr_cpus; | |
3017 | long_size = long_sz; | |
3018 | } |