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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 | ||
cda48461 SR |
43 | int latency_format; |
44 | ||
ea4010d1 SR |
45 | static char *input_buf; |
46 | static unsigned long long input_buf_ptr; | |
47 | static unsigned long long input_buf_siz; | |
48 | ||
49 | static int cpus; | |
50 | static int long_size; | |
51 | ||
52 | static void init_input_buf(char *buf, unsigned long long size) | |
53 | { | |
54 | input_buf = buf; | |
55 | input_buf_siz = size; | |
56 | input_buf_ptr = 0; | |
57 | } | |
58 | ||
59 | struct cmdline { | |
60 | char *comm; | |
61 | int pid; | |
62 | }; | |
63 | ||
64 | static struct cmdline *cmdlines; | |
65 | static int cmdline_count; | |
66 | ||
67 | static int cmdline_cmp(const void *a, const void *b) | |
68 | { | |
69 | const struct cmdline *ca = a; | |
70 | const struct cmdline *cb = b; | |
71 | ||
72 | if (ca->pid < cb->pid) | |
73 | return -1; | |
74 | if (ca->pid > cb->pid) | |
75 | return 1; | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | void parse_cmdlines(char *file, int size __unused) | |
81 | { | |
82 | struct cmdline_list { | |
83 | struct cmdline_list *next; | |
84 | char *comm; | |
85 | int pid; | |
86 | } *list = NULL, *item; | |
87 | char *line; | |
88 | char *next = NULL; | |
89 | int i; | |
90 | ||
91 | line = strtok_r(file, "\n", &next); | |
92 | while (line) { | |
93 | item = malloc_or_die(sizeof(*item)); | |
94 | sscanf(line, "%d %as", &item->pid, | |
65014ab3 | 95 | (float *)(void *)&item->comm); /* workaround gcc warning */ |
ea4010d1 SR |
96 | item->next = list; |
97 | list = item; | |
98 | line = strtok_r(NULL, "\n", &next); | |
99 | cmdline_count++; | |
100 | } | |
101 | ||
102 | cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); | |
103 | ||
104 | i = 0; | |
105 | while (list) { | |
106 | cmdlines[i].pid = list->pid; | |
107 | cmdlines[i].comm = list->comm; | |
108 | i++; | |
109 | item = list; | |
110 | list = list->next; | |
111 | free(item); | |
112 | } | |
113 | ||
114 | qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); | |
115 | } | |
116 | ||
117 | static struct func_map { | |
118 | unsigned long long addr; | |
119 | char *func; | |
120 | char *mod; | |
121 | } *func_list; | |
122 | static unsigned int func_count; | |
123 | ||
124 | static int func_cmp(const void *a, const void *b) | |
125 | { | |
126 | const struct func_map *fa = a; | |
127 | const struct func_map *fb = b; | |
128 | ||
129 | if (fa->addr < fb->addr) | |
130 | return -1; | |
131 | if (fa->addr > fb->addr) | |
132 | return 1; | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | void parse_proc_kallsyms(char *file, unsigned int size __unused) | |
138 | { | |
139 | struct func_list { | |
140 | struct func_list *next; | |
141 | unsigned long long addr; | |
142 | char *func; | |
143 | char *mod; | |
144 | } *list = NULL, *item; | |
145 | char *line; | |
146 | char *next = NULL; | |
147 | char *addr_str; | |
148 | char ch; | |
149 | int ret; | |
150 | int i; | |
151 | ||
152 | line = strtok_r(file, "\n", &next); | |
153 | while (line) { | |
154 | item = malloc_or_die(sizeof(*item)); | |
155 | item->mod = NULL; | |
156 | ret = sscanf(line, "%as %c %as\t[%as", | |
65014ab3 | 157 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
ea4010d1 | 158 | &ch, |
65014ab3 IM |
159 | (float *)(void *)&item->func, |
160 | (float *)(void *)&item->mod); | |
ea4010d1 SR |
161 | item->addr = strtoull(addr_str, NULL, 16); |
162 | free(addr_str); | |
163 | ||
164 | /* truncate the extra ']' */ | |
165 | if (item->mod) | |
166 | item->mod[strlen(item->mod) - 1] = 0; | |
167 | ||
168 | ||
169 | item->next = list; | |
170 | list = item; | |
171 | line = strtok_r(NULL, "\n", &next); | |
172 | func_count++; | |
173 | } | |
174 | ||
175 | func_list = malloc_or_die(sizeof(*func_list) * func_count + 1); | |
176 | ||
177 | i = 0; | |
178 | while (list) { | |
179 | func_list[i].func = list->func; | |
180 | func_list[i].addr = list->addr; | |
181 | func_list[i].mod = list->mod; | |
182 | i++; | |
183 | item = list; | |
184 | list = list->next; | |
185 | free(item); | |
186 | } | |
187 | ||
188 | qsort(func_list, func_count, sizeof(*func_list), func_cmp); | |
189 | ||
190 | /* | |
191 | * Add a special record at the end. | |
192 | */ | |
193 | func_list[func_count].func = NULL; | |
194 | func_list[func_count].addr = 0; | |
195 | func_list[func_count].mod = NULL; | |
196 | } | |
197 | ||
198 | /* | |
199 | * We are searching for a record in between, not an exact | |
200 | * match. | |
201 | */ | |
202 | static int func_bcmp(const void *a, const void *b) | |
203 | { | |
204 | const struct func_map *fa = a; | |
205 | const struct func_map *fb = b; | |
206 | ||
207 | if ((fa->addr == fb->addr) || | |
208 | ||
209 | (fa->addr > fb->addr && | |
210 | fa->addr < (fb+1)->addr)) | |
211 | return 0; | |
212 | ||
213 | if (fa->addr < fb->addr) | |
214 | return -1; | |
215 | ||
216 | return 1; | |
217 | } | |
218 | ||
219 | static struct func_map *find_func(unsigned long long addr) | |
220 | { | |
221 | struct func_map *func; | |
222 | struct func_map key; | |
223 | ||
224 | key.addr = addr; | |
225 | ||
226 | func = bsearch(&key, func_list, func_count, sizeof(*func_list), | |
227 | func_bcmp); | |
228 | ||
229 | return func; | |
230 | } | |
231 | ||
232 | void print_funcs(void) | |
233 | { | |
234 | int i; | |
235 | ||
236 | for (i = 0; i < (int)func_count; i++) { | |
237 | printf("%016llx %s", | |
238 | func_list[i].addr, | |
239 | func_list[i].func); | |
240 | if (func_list[i].mod) | |
241 | printf(" [%s]\n", func_list[i].mod); | |
242 | else | |
243 | printf("\n"); | |
244 | } | |
245 | } | |
246 | ||
247 | static struct printk_map { | |
248 | unsigned long long addr; | |
249 | char *printk; | |
250 | } *printk_list; | |
251 | static unsigned int printk_count; | |
252 | ||
253 | static int printk_cmp(const void *a, const void *b) | |
254 | { | |
255 | const struct func_map *fa = a; | |
256 | const struct func_map *fb = b; | |
257 | ||
258 | if (fa->addr < fb->addr) | |
259 | return -1; | |
260 | if (fa->addr > fb->addr) | |
261 | return 1; | |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
266 | static struct printk_map *find_printk(unsigned long long addr) | |
267 | { | |
268 | struct printk_map *printk; | |
269 | struct printk_map key; | |
270 | ||
271 | key.addr = addr; | |
272 | ||
273 | printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), | |
274 | printk_cmp); | |
275 | ||
276 | return printk; | |
277 | } | |
278 | ||
279 | void parse_ftrace_printk(char *file, unsigned int size __unused) | |
280 | { | |
281 | struct printk_list { | |
282 | struct printk_list *next; | |
283 | unsigned long long addr; | |
284 | char *printk; | |
285 | } *list = NULL, *item; | |
286 | char *line; | |
287 | char *next = NULL; | |
288 | char *addr_str; | |
ffa18955 | 289 | char *fmt; |
ea4010d1 SR |
290 | int i; |
291 | ||
292 | line = strtok_r(file, "\n", &next); | |
293 | while (line) { | |
294 | item = malloc_or_die(sizeof(*item)); | |
ffa18955 | 295 | addr_str = strtok_r(line, ":", &fmt); |
ea4010d1 | 296 | item->addr = strtoull(addr_str, NULL, 16); |
ffa18955 SR |
297 | /* fmt still has a space, skip it */ |
298 | item->printk = strdup(fmt+1); | |
ea4010d1 SR |
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; | |
91ff2bc1 SR |
525 | /* the '\' '\' will cancel itself */ |
526 | if (ch == '\\' && last_ch == '\\') | |
527 | last_ch = 0; | |
528 | } while (ch != quote_ch || last_ch == '\\'); | |
ea4010d1 SR |
529 | /* remove the last quote */ |
530 | i--; | |
531 | goto out; | |
532 | ||
533 | case EVENT_ERROR ... EVENT_SPACE: | |
534 | case EVENT_ITEM: | |
535 | default: | |
536 | break; | |
537 | } | |
538 | ||
539 | while (get_type(__peek_char()) == type) { | |
540 | if (i == (BUFSIZ - 1)) { | |
541 | buf[i] = 0; | |
542 | if (*tok) { | |
543 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
544 | if (!*tok) | |
545 | return EVENT_NONE; | |
546 | strcat(*tok, buf); | |
547 | } else | |
548 | *tok = strdup(buf); | |
549 | ||
550 | if (!*tok) | |
551 | return EVENT_NONE; | |
552 | tok_size += BUFSIZ; | |
553 | i = 0; | |
554 | } | |
555 | ch = __read_char(); | |
556 | buf[i++] = ch; | |
557 | } | |
558 | ||
559 | out: | |
560 | buf[i] = 0; | |
561 | if (*tok) { | |
562 | *tok = realloc(*tok, tok_size + i); | |
563 | if (!*tok) | |
564 | return EVENT_NONE; | |
565 | strcat(*tok, buf); | |
566 | } else | |
567 | *tok = strdup(buf); | |
568 | if (!*tok) | |
569 | return EVENT_NONE; | |
570 | ||
571 | return type; | |
572 | } | |
573 | ||
574 | static void free_token(char *tok) | |
575 | { | |
576 | if (tok) | |
577 | free(tok); | |
578 | } | |
579 | ||
580 | static enum event_type read_token(char **tok) | |
581 | { | |
582 | enum event_type type; | |
583 | ||
584 | for (;;) { | |
585 | type = __read_token(tok); | |
586 | if (type != EVENT_SPACE) | |
587 | return type; | |
588 | ||
589 | free_token(*tok); | |
590 | } | |
591 | ||
592 | /* not reached */ | |
593 | return EVENT_NONE; | |
594 | } | |
595 | ||
596 | /* no newline */ | |
597 | static enum event_type read_token_item(char **tok) | |
598 | { | |
599 | enum event_type type; | |
600 | ||
601 | for (;;) { | |
602 | type = __read_token(tok); | |
603 | if (type != EVENT_SPACE && type != EVENT_NEWLINE) | |
604 | return type; | |
605 | ||
606 | free_token(*tok); | |
607 | } | |
608 | ||
609 | /* not reached */ | |
610 | return EVENT_NONE; | |
611 | } | |
612 | ||
613 | static int test_type(enum event_type type, enum event_type expect) | |
614 | { | |
615 | if (type != expect) { | |
07a4bddd | 616 | warning("Error: expected type %d but read %d", |
ea4010d1 SR |
617 | expect, type); |
618 | return -1; | |
619 | } | |
620 | return 0; | |
621 | } | |
622 | ||
623 | static int test_type_token(enum event_type type, char *token, | |
cbef79a8 | 624 | enum event_type expect, const char *expect_tok) |
ea4010d1 SR |
625 | { |
626 | if (type != expect) { | |
07a4bddd | 627 | warning("Error: expected type %d but read %d", |
ea4010d1 SR |
628 | expect, type); |
629 | return -1; | |
630 | } | |
631 | ||
632 | if (strcmp(token, expect_tok) != 0) { | |
07a4bddd | 633 | warning("Error: expected '%s' but read '%s'", |
ea4010d1 SR |
634 | expect_tok, token); |
635 | return -1; | |
636 | } | |
637 | return 0; | |
638 | } | |
639 | ||
640 | static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) | |
641 | { | |
642 | enum event_type type; | |
643 | ||
644 | if (newline_ok) | |
645 | type = read_token(tok); | |
646 | else | |
647 | type = read_token_item(tok); | |
648 | return test_type(type, expect); | |
649 | } | |
650 | ||
651 | static int read_expect_type(enum event_type expect, char **tok) | |
652 | { | |
653 | return __read_expect_type(expect, tok, 1); | |
654 | } | |
655 | ||
cbef79a8 | 656 | static int __read_expected(enum event_type expect, const char *str, int newline_ok) |
ea4010d1 SR |
657 | { |
658 | enum event_type type; | |
659 | char *token; | |
660 | int ret; | |
661 | ||
662 | if (newline_ok) | |
663 | type = read_token(&token); | |
664 | else | |
665 | type = read_token_item(&token); | |
666 | ||
667 | ret = test_type_token(type, token, expect, str); | |
668 | ||
669 | free_token(token); | |
670 | ||
07a4bddd | 671 | return ret; |
ea4010d1 SR |
672 | } |
673 | ||
cbef79a8 | 674 | static int read_expected(enum event_type expect, const char *str) |
ea4010d1 SR |
675 | { |
676 | return __read_expected(expect, str, 1); | |
677 | } | |
678 | ||
cbef79a8 | 679 | static int read_expected_item(enum event_type expect, const char *str) |
ea4010d1 SR |
680 | { |
681 | return __read_expected(expect, str, 0); | |
682 | } | |
683 | ||
684 | static char *event_read_name(void) | |
685 | { | |
686 | char *token; | |
687 | ||
688 | if (read_expected(EVENT_ITEM, (char *)"name") < 0) | |
689 | return NULL; | |
690 | ||
691 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
692 | return NULL; | |
693 | ||
694 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
695 | goto fail; | |
696 | ||
697 | return token; | |
698 | ||
699 | fail: | |
700 | free_token(token); | |
701 | return NULL; | |
702 | } | |
703 | ||
704 | static int event_read_id(void) | |
705 | { | |
706 | char *token; | |
707 | int id; | |
708 | ||
709 | if (read_expected_item(EVENT_ITEM, (char *)"ID") < 0) | |
710 | return -1; | |
711 | ||
712 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
713 | return -1; | |
714 | ||
715 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
716 | goto fail; | |
717 | ||
718 | id = strtoul(token, NULL, 0); | |
719 | free_token(token); | |
720 | return id; | |
721 | ||
722 | fail: | |
723 | free_token(token); | |
724 | return -1; | |
725 | } | |
726 | ||
064739bc TZ |
727 | static int field_is_string(struct format_field *field) |
728 | { | |
729 | if ((field->flags & FIELD_IS_ARRAY) && | |
730 | (!strstr(field->type, "char") || !strstr(field->type, "u8") || | |
731 | !strstr(field->type, "s8"))) | |
732 | return 1; | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | static int field_is_dynamic(struct format_field *field) | |
738 | { | |
739 | if (!strcmp(field->type, "__data_loc")) | |
740 | return 1; | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
ea4010d1 SR |
745 | static int event_read_fields(struct event *event, struct format_field **fields) |
746 | { | |
747 | struct format_field *field = NULL; | |
748 | enum event_type type; | |
749 | char *token; | |
750 | char *last_token; | |
751 | int count = 0; | |
752 | ||
753 | do { | |
754 | type = read_token(&token); | |
755 | if (type == EVENT_NEWLINE) { | |
756 | free_token(token); | |
757 | return count; | |
758 | } | |
759 | ||
760 | count++; | |
761 | ||
762 | if (test_type_token(type, token, EVENT_ITEM, (char *)"field")) | |
763 | goto fail; | |
764 | free_token(token); | |
765 | ||
766 | type = read_token(&token); | |
767 | /* | |
768 | * The ftrace fields may still use the "special" name. | |
769 | * Just ignore it. | |
770 | */ | |
771 | if (event->flags & EVENT_FL_ISFTRACE && | |
772 | type == EVENT_ITEM && strcmp(token, "special") == 0) { | |
773 | free_token(token); | |
774 | type = read_token(&token); | |
775 | } | |
776 | ||
777 | if (test_type_token(type, token, EVENT_OP, (char *)":") < 0) | |
778 | return -1; | |
779 | ||
780 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
781 | goto fail; | |
782 | ||
783 | last_token = token; | |
784 | ||
785 | field = malloc_or_die(sizeof(*field)); | |
786 | memset(field, 0, sizeof(*field)); | |
787 | ||
788 | /* read the rest of the type */ | |
789 | for (;;) { | |
790 | type = read_token(&token); | |
791 | if (type == EVENT_ITEM || | |
792 | (type == EVENT_OP && strcmp(token, "*") == 0) || | |
793 | /* | |
794 | * Some of the ftrace fields are broken and have | |
795 | * an illegal "." in them. | |
796 | */ | |
797 | (event->flags & EVENT_FL_ISFTRACE && | |
798 | type == EVENT_OP && strcmp(token, ".") == 0)) { | |
799 | ||
800 | if (strcmp(token, "*") == 0) | |
801 | field->flags |= FIELD_IS_POINTER; | |
802 | ||
803 | if (field->type) { | |
804 | field->type = realloc(field->type, | |
805 | strlen(field->type) + | |
806 | strlen(last_token) + 2); | |
807 | strcat(field->type, " "); | |
808 | strcat(field->type, last_token); | |
809 | } else | |
810 | field->type = last_token; | |
811 | last_token = token; | |
812 | continue; | |
813 | } | |
814 | ||
815 | break; | |
816 | } | |
817 | ||
818 | if (!field->type) { | |
819 | die("no type found"); | |
820 | goto fail; | |
821 | } | |
822 | field->name = last_token; | |
823 | ||
824 | if (test_type(type, EVENT_OP)) | |
825 | goto fail; | |
826 | ||
827 | if (strcmp(token, "[") == 0) { | |
828 | enum event_type last_type = type; | |
829 | char *brackets = token; | |
830 | int len; | |
831 | ||
832 | field->flags |= FIELD_IS_ARRAY; | |
833 | ||
834 | type = read_token(&token); | |
835 | while (strcmp(token, "]") != 0) { | |
836 | if (last_type == EVENT_ITEM && | |
837 | type == EVENT_ITEM) | |
838 | len = 2; | |
839 | else | |
840 | len = 1; | |
841 | last_type = type; | |
842 | ||
843 | brackets = realloc(brackets, | |
844 | strlen(brackets) + | |
845 | strlen(token) + len); | |
846 | if (len == 2) | |
847 | strcat(brackets, " "); | |
848 | strcat(brackets, token); | |
849 | free_token(token); | |
850 | type = read_token(&token); | |
851 | if (type == EVENT_NONE) { | |
852 | die("failed to find token"); | |
853 | goto fail; | |
854 | } | |
855 | } | |
856 | ||
857 | free_token(token); | |
858 | ||
859 | brackets = realloc(brackets, strlen(brackets) + 2); | |
860 | strcat(brackets, "]"); | |
861 | ||
862 | /* add brackets to type */ | |
863 | ||
864 | type = read_token(&token); | |
865 | /* | |
866 | * If the next token is not an OP, then it is of | |
867 | * the format: type [] item; | |
868 | */ | |
869 | if (type == EVENT_ITEM) { | |
870 | field->type = realloc(field->type, | |
871 | strlen(field->type) + | |
872 | strlen(field->name) + | |
873 | strlen(brackets) + 2); | |
874 | strcat(field->type, " "); | |
875 | strcat(field->type, field->name); | |
876 | free_token(field->name); | |
877 | strcat(field->type, brackets); | |
878 | field->name = token; | |
879 | type = read_token(&token); | |
880 | } else { | |
881 | field->type = realloc(field->type, | |
882 | strlen(field->type) + | |
883 | strlen(brackets) + 1); | |
884 | strcat(field->type, brackets); | |
885 | } | |
886 | free(brackets); | |
887 | } | |
888 | ||
064739bc TZ |
889 | if (field_is_string(field)) { |
890 | field->flags |= FIELD_IS_STRING; | |
891 | if (field_is_dynamic(field)) | |
892 | field->flags |= FIELD_IS_DYNAMIC; | |
893 | } | |
894 | ||
ea4010d1 SR |
895 | if (test_type_token(type, token, EVENT_OP, (char *)";")) |
896 | goto fail; | |
897 | free_token(token); | |
898 | ||
899 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
900 | goto fail_expect; | |
901 | ||
902 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
903 | goto fail_expect; | |
904 | ||
905 | if (read_expect_type(EVENT_ITEM, &token)) | |
906 | goto fail; | |
907 | field->offset = strtoul(token, NULL, 0); | |
908 | free_token(token); | |
909 | ||
910 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
911 | goto fail_expect; | |
912 | ||
913 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
914 | goto fail_expect; | |
915 | ||
916 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
917 | goto fail_expect; | |
918 | ||
919 | if (read_expect_type(EVENT_ITEM, &token)) | |
920 | goto fail; | |
921 | field->size = strtoul(token, NULL, 0); | |
922 | free_token(token); | |
923 | ||
26a50744 TZ |
924 | if (read_expected(EVENT_OP, (char *)";") < 0) |
925 | goto fail_expect; | |
926 | ||
13999e59 SR |
927 | type = read_token(&token); |
928 | if (type != EVENT_NEWLINE) { | |
929 | /* newer versions of the kernel have a "signed" type */ | |
930 | if (test_type_token(type, token, EVENT_ITEM, (char *)"signed")) | |
931 | goto fail; | |
26a50744 | 932 | |
13999e59 | 933 | free_token(token); |
26a50744 | 934 | |
13999e59 SR |
935 | if (read_expected(EVENT_OP, (char *)":") < 0) |
936 | goto fail_expect; | |
26a50744 | 937 | |
13999e59 SR |
938 | if (read_expect_type(EVENT_ITEM, &token)) |
939 | goto fail; | |
940 | ||
941 | /* add signed type */ | |
942 | ||
943 | free_token(token); | |
944 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
945 | goto fail_expect; | |
946 | ||
947 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
948 | goto fail; | |
949 | } | |
ea4010d1 | 950 | |
ea4010d1 SR |
951 | free_token(token); |
952 | ||
953 | *fields = field; | |
954 | fields = &field->next; | |
955 | ||
956 | } while (1); | |
957 | ||
958 | return 0; | |
959 | ||
960 | fail: | |
961 | free_token(token); | |
962 | fail_expect: | |
963 | if (field) | |
964 | free(field); | |
965 | return -1; | |
966 | } | |
967 | ||
968 | static int event_read_format(struct event *event) | |
969 | { | |
970 | char *token; | |
971 | int ret; | |
972 | ||
973 | if (read_expected_item(EVENT_ITEM, (char *)"format") < 0) | |
974 | return -1; | |
975 | ||
976 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
977 | return -1; | |
978 | ||
979 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
980 | goto fail; | |
981 | free_token(token); | |
982 | ||
983 | ret = event_read_fields(event, &event->format.common_fields); | |
984 | if (ret < 0) | |
985 | return ret; | |
986 | event->format.nr_common = ret; | |
987 | ||
988 | ret = event_read_fields(event, &event->format.fields); | |
989 | if (ret < 0) | |
990 | return ret; | |
991 | event->format.nr_fields = ret; | |
992 | ||
993 | return 0; | |
994 | ||
995 | fail: | |
996 | free_token(token); | |
997 | return -1; | |
998 | } | |
999 | ||
1000 | enum event_type | |
1001 | process_arg_token(struct event *event, struct print_arg *arg, | |
1002 | char **tok, enum event_type type); | |
1003 | ||
1004 | static enum event_type | |
1005 | process_arg(struct event *event, struct print_arg *arg, char **tok) | |
1006 | { | |
1007 | enum event_type type; | |
1008 | char *token; | |
1009 | ||
1010 | type = read_token(&token); | |
1011 | *tok = token; | |
1012 | ||
1013 | return process_arg_token(event, arg, tok, type); | |
1014 | } | |
1015 | ||
1016 | static enum event_type | |
1017 | process_cond(struct event *event, struct print_arg *top, char **tok) | |
1018 | { | |
1019 | struct print_arg *arg, *left, *right; | |
1020 | enum event_type type; | |
1021 | char *token = NULL; | |
1022 | ||
1023 | arg = malloc_or_die(sizeof(*arg)); | |
1024 | memset(arg, 0, sizeof(*arg)); | |
1025 | ||
1026 | left = malloc_or_die(sizeof(*left)); | |
1027 | ||
1028 | right = malloc_or_die(sizeof(*right)); | |
1029 | ||
1030 | arg->type = PRINT_OP; | |
1031 | arg->op.left = left; | |
1032 | arg->op.right = right; | |
1033 | ||
1034 | *tok = NULL; | |
1035 | type = process_arg(event, left, &token); | |
1036 | if (test_type_token(type, token, EVENT_OP, (char *)":")) | |
1037 | goto out_free; | |
1038 | ||
1039 | arg->op.op = token; | |
1040 | ||
1041 | type = process_arg(event, right, &token); | |
1042 | ||
1043 | top->op.right = arg; | |
1044 | ||
1045 | *tok = token; | |
1046 | return type; | |
1047 | ||
1048 | out_free: | |
1049 | free_token(*tok); | |
1050 | free(right); | |
1051 | free(left); | |
1052 | free_arg(arg); | |
1053 | return EVENT_ERROR; | |
1054 | } | |
1055 | ||
0959b8d6 SR |
1056 | static enum event_type |
1057 | process_array(struct event *event, struct print_arg *top, char **tok) | |
1058 | { | |
1059 | struct print_arg *arg; | |
1060 | enum event_type type; | |
1061 | char *token = NULL; | |
1062 | ||
1063 | arg = malloc_or_die(sizeof(*arg)); | |
1064 | memset(arg, 0, sizeof(*arg)); | |
1065 | ||
1066 | *tok = NULL; | |
1067 | type = process_arg(event, arg, &token); | |
1068 | if (test_type_token(type, token, EVENT_OP, (char *)"]")) | |
1069 | goto out_free; | |
1070 | ||
1071 | top->op.right = arg; | |
1072 | ||
1073 | free_token(token); | |
1074 | type = read_token_item(&token); | |
1075 | *tok = token; | |
1076 | ||
1077 | return type; | |
1078 | ||
1079 | out_free: | |
1080 | free_token(*tok); | |
1081 | free_arg(arg); | |
1082 | return EVENT_ERROR; | |
1083 | } | |
1084 | ||
ea4010d1 SR |
1085 | static int get_op_prio(char *op) |
1086 | { | |
1087 | if (!op[1]) { | |
1088 | switch (op[0]) { | |
1089 | case '*': | |
1090 | case '/': | |
1091 | case '%': | |
1092 | return 6; | |
1093 | case '+': | |
1094 | case '-': | |
1095 | return 7; | |
1096 | /* '>>' and '<<' are 8 */ | |
1097 | case '<': | |
1098 | case '>': | |
1099 | return 9; | |
1100 | /* '==' and '!=' are 10 */ | |
1101 | case '&': | |
1102 | return 11; | |
1103 | case '^': | |
1104 | return 12; | |
1105 | case '|': | |
1106 | return 13; | |
1107 | case '?': | |
1108 | return 16; | |
1109 | default: | |
1110 | die("unknown op '%c'", op[0]); | |
1111 | return -1; | |
1112 | } | |
1113 | } else { | |
1114 | if (strcmp(op, "++") == 0 || | |
1115 | strcmp(op, "--") == 0) { | |
1116 | return 3; | |
1117 | } else if (strcmp(op, ">>") == 0 || | |
1118 | strcmp(op, "<<") == 0) { | |
1119 | return 8; | |
1120 | } else if (strcmp(op, ">=") == 0 || | |
1121 | strcmp(op, "<=") == 0) { | |
1122 | return 9; | |
1123 | } else if (strcmp(op, "==") == 0 || | |
1124 | strcmp(op, "!=") == 0) { | |
1125 | return 10; | |
1126 | } else if (strcmp(op, "&&") == 0) { | |
1127 | return 14; | |
1128 | } else if (strcmp(op, "||") == 0) { | |
1129 | return 15; | |
1130 | } else { | |
1131 | die("unknown op '%s'", op); | |
1132 | return -1; | |
1133 | } | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | static void set_op_prio(struct print_arg *arg) | |
1138 | { | |
1139 | ||
1140 | /* single ops are the greatest */ | |
1141 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { | |
1142 | arg->op.prio = 0; | |
1143 | return; | |
1144 | } | |
1145 | ||
1146 | arg->op.prio = get_op_prio(arg->op.op); | |
1147 | } | |
1148 | ||
1149 | static enum event_type | |
1150 | process_op(struct event *event, struct print_arg *arg, char **tok) | |
1151 | { | |
1152 | struct print_arg *left, *right = NULL; | |
1153 | enum event_type type; | |
1154 | char *token; | |
1155 | ||
1156 | /* the op is passed in via tok */ | |
1157 | token = *tok; | |
1158 | ||
1159 | if (arg->type == PRINT_OP && !arg->op.left) { | |
1160 | /* handle single op */ | |
1161 | if (token[1]) { | |
1162 | die("bad op token %s", token); | |
1163 | return EVENT_ERROR; | |
1164 | } | |
1165 | switch (token[0]) { | |
1166 | case '!': | |
1167 | case '+': | |
1168 | case '-': | |
1169 | break; | |
1170 | default: | |
1171 | die("bad op token %s", token); | |
1172 | return EVENT_ERROR; | |
1173 | } | |
1174 | ||
1175 | /* make an empty left */ | |
1176 | left = malloc_or_die(sizeof(*left)); | |
1177 | left->type = PRINT_NULL; | |
1178 | arg->op.left = left; | |
1179 | ||
1180 | right = malloc_or_die(sizeof(*right)); | |
1181 | arg->op.right = right; | |
1182 | ||
1183 | type = process_arg(event, right, tok); | |
1184 | ||
1185 | } else if (strcmp(token, "?") == 0) { | |
1186 | ||
1187 | left = malloc_or_die(sizeof(*left)); | |
1188 | /* copy the top arg to the left */ | |
1189 | *left = *arg; | |
1190 | ||
1191 | arg->type = PRINT_OP; | |
1192 | arg->op.op = token; | |
1193 | arg->op.left = left; | |
1194 | arg->op.prio = 0; | |
1195 | ||
1196 | type = process_cond(event, arg, tok); | |
1197 | ||
1198 | } else if (strcmp(token, ">>") == 0 || | |
1199 | strcmp(token, "<<") == 0 || | |
1200 | strcmp(token, "&") == 0 || | |
1201 | strcmp(token, "|") == 0 || | |
1202 | strcmp(token, "&&") == 0 || | |
1203 | strcmp(token, "||") == 0 || | |
1204 | strcmp(token, "-") == 0 || | |
1205 | strcmp(token, "+") == 0 || | |
1206 | strcmp(token, "*") == 0 || | |
1207 | strcmp(token, "^") == 0 || | |
1208 | strcmp(token, "/") == 0 || | |
298ebc3e SR |
1209 | strcmp(token, "<") == 0 || |
1210 | strcmp(token, ">") == 0 || | |
ea4010d1 SR |
1211 | strcmp(token, "==") == 0 || |
1212 | strcmp(token, "!=") == 0) { | |
1213 | ||
1214 | left = malloc_or_die(sizeof(*left)); | |
1215 | ||
1216 | /* copy the top arg to the left */ | |
1217 | *left = *arg; | |
1218 | ||
1219 | arg->type = PRINT_OP; | |
1220 | arg->op.op = token; | |
1221 | arg->op.left = left; | |
1222 | ||
1223 | set_op_prio(arg); | |
1224 | ||
1225 | right = malloc_or_die(sizeof(*right)); | |
1226 | ||
b99af874 SR |
1227 | type = read_token_item(&token); |
1228 | *tok = token; | |
1229 | ||
1230 | /* could just be a type pointer */ | |
1231 | if ((strcmp(arg->op.op, "*") == 0) && | |
1232 | type == EVENT_DELIM && (strcmp(token, ")") == 0)) { | |
1233 | if (left->type != PRINT_ATOM) | |
1234 | die("bad pointer type"); | |
1235 | left->atom.atom = realloc(left->atom.atom, | |
1236 | sizeof(left->atom.atom) + 3); | |
1237 | strcat(left->atom.atom, " *"); | |
1238 | *arg = *left; | |
1239 | free(arg); | |
1240 | ||
1241 | return type; | |
1242 | } | |
1243 | ||
1244 | type = process_arg_token(event, right, tok, type); | |
ea4010d1 SR |
1245 | |
1246 | arg->op.right = right; | |
1247 | ||
0959b8d6 SR |
1248 | } else if (strcmp(token, "[") == 0) { |
1249 | ||
1250 | left = malloc_or_die(sizeof(*left)); | |
1251 | *left = *arg; | |
1252 | ||
1253 | arg->type = PRINT_OP; | |
1254 | arg->op.op = token; | |
1255 | arg->op.left = left; | |
1256 | ||
1257 | arg->op.prio = 0; | |
1258 | type = process_array(event, arg, tok); | |
1259 | ||
ea4010d1 | 1260 | } else { |
07a4bddd SR |
1261 | warning("unknown op '%s'", token); |
1262 | event->flags |= EVENT_FL_FAILED; | |
ea4010d1 SR |
1263 | /* the arg is now the left side */ |
1264 | return EVENT_NONE; | |
1265 | } | |
1266 | ||
ea4010d1 SR |
1267 | if (type == EVENT_OP) { |
1268 | int prio; | |
1269 | ||
1270 | /* higher prios need to be closer to the root */ | |
1271 | prio = get_op_prio(*tok); | |
1272 | ||
1273 | if (prio > arg->op.prio) | |
1274 | return process_op(event, arg, tok); | |
1275 | ||
1276 | return process_op(event, right, tok); | |
1277 | } | |
1278 | ||
1279 | return type; | |
1280 | } | |
1281 | ||
1282 | static enum event_type | |
1283 | process_entry(struct event *event __unused, struct print_arg *arg, | |
1284 | char **tok) | |
1285 | { | |
1286 | enum event_type type; | |
1287 | char *field; | |
1288 | char *token; | |
1289 | ||
1290 | if (read_expected(EVENT_OP, (char *)"->") < 0) | |
1291 | return EVENT_ERROR; | |
1292 | ||
1293 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1294 | goto fail; | |
1295 | field = token; | |
1296 | ||
1297 | arg->type = PRINT_FIELD; | |
1298 | arg->field.name = field; | |
1299 | ||
1300 | type = read_token(&token); | |
1301 | *tok = token; | |
1302 | ||
1303 | return type; | |
1304 | ||
1305 | fail: | |
1306 | free_token(token); | |
1307 | return EVENT_ERROR; | |
1308 | } | |
1309 | ||
1310 | static char *arg_eval (struct print_arg *arg); | |
1311 | ||
1312 | static long long arg_num_eval(struct print_arg *arg) | |
1313 | { | |
1314 | long long left, right; | |
1315 | long long val = 0; | |
1316 | ||
1317 | switch (arg->type) { | |
1318 | case PRINT_ATOM: | |
1319 | val = strtoll(arg->atom.atom, NULL, 0); | |
1320 | break; | |
1321 | case PRINT_TYPE: | |
1322 | val = arg_num_eval(arg->typecast.item); | |
1323 | break; | |
1324 | case PRINT_OP: | |
1325 | switch (arg->op.op[0]) { | |
1326 | case '|': | |
1327 | left = arg_num_eval(arg->op.left); | |
1328 | right = arg_num_eval(arg->op.right); | |
1329 | if (arg->op.op[1]) | |
1330 | val = left || right; | |
1331 | else | |
1332 | val = left | right; | |
1333 | break; | |
1334 | case '&': | |
1335 | left = arg_num_eval(arg->op.left); | |
1336 | right = arg_num_eval(arg->op.right); | |
1337 | if (arg->op.op[1]) | |
1338 | val = left && right; | |
1339 | else | |
1340 | val = left & right; | |
1341 | break; | |
1342 | case '<': | |
1343 | left = arg_num_eval(arg->op.left); | |
1344 | right = arg_num_eval(arg->op.right); | |
1345 | switch (arg->op.op[1]) { | |
1346 | case 0: | |
1347 | val = left < right; | |
1348 | break; | |
1349 | case '<': | |
1350 | val = left << right; | |
1351 | break; | |
1352 | case '=': | |
1353 | val = left <= right; | |
1354 | break; | |
1355 | default: | |
1356 | die("unknown op '%s'", arg->op.op); | |
1357 | } | |
1358 | break; | |
1359 | case '>': | |
1360 | left = arg_num_eval(arg->op.left); | |
1361 | right = arg_num_eval(arg->op.right); | |
1362 | switch (arg->op.op[1]) { | |
1363 | case 0: | |
1364 | val = left > right; | |
1365 | break; | |
1366 | case '>': | |
1367 | val = left >> right; | |
1368 | break; | |
1369 | case '=': | |
1370 | val = left >= right; | |
1371 | break; | |
1372 | default: | |
1373 | die("unknown op '%s'", arg->op.op); | |
1374 | } | |
1375 | break; | |
1376 | case '=': | |
1377 | left = arg_num_eval(arg->op.left); | |
1378 | right = arg_num_eval(arg->op.right); | |
1379 | ||
1380 | if (arg->op.op[1] != '=') | |
1381 | die("unknown op '%s'", arg->op.op); | |
1382 | ||
1383 | val = left == right; | |
1384 | break; | |
1385 | case '!': | |
1386 | left = arg_num_eval(arg->op.left); | |
1387 | right = arg_num_eval(arg->op.right); | |
1388 | ||
1389 | switch (arg->op.op[1]) { | |
1390 | case '=': | |
1391 | val = left != right; | |
1392 | break; | |
1393 | default: | |
1394 | die("unknown op '%s'", arg->op.op); | |
1395 | } | |
1396 | break; | |
1397 | default: | |
1398 | die("unknown op '%s'", arg->op.op); | |
1399 | } | |
1400 | break; | |
1401 | ||
1402 | case PRINT_NULL: | |
1403 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1404 | case PRINT_STRING: | |
1405 | default: | |
1406 | die("invalid eval type %d", arg->type); | |
1407 | ||
1408 | } | |
1409 | return val; | |
1410 | } | |
1411 | ||
1412 | static char *arg_eval (struct print_arg *arg) | |
1413 | { | |
1414 | long long val; | |
1415 | static char buf[20]; | |
1416 | ||
1417 | switch (arg->type) { | |
1418 | case PRINT_ATOM: | |
1419 | return arg->atom.atom; | |
1420 | case PRINT_TYPE: | |
1421 | return arg_eval(arg->typecast.item); | |
1422 | case PRINT_OP: | |
1423 | val = arg_num_eval(arg); | |
1424 | sprintf(buf, "%lld", val); | |
1425 | return buf; | |
1426 | ||
1427 | case PRINT_NULL: | |
1428 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1429 | case PRINT_STRING: | |
1430 | default: | |
1431 | die("invalid eval type %d", arg->type); | |
1432 | break; | |
1433 | } | |
1434 | ||
1435 | return NULL; | |
1436 | } | |
1437 | ||
1438 | static enum event_type | |
1439 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) | |
1440 | { | |
1441 | enum event_type type; | |
1442 | struct print_arg *arg = NULL; | |
1443 | struct print_flag_sym *field; | |
1444 | char *token = NULL; | |
1445 | char *value; | |
1446 | ||
1447 | do { | |
1448 | free_token(token); | |
1449 | type = read_token_item(&token); | |
1450 | if (test_type_token(type, token, EVENT_OP, (char *)"{")) | |
1451 | break; | |
1452 | ||
1453 | arg = malloc_or_die(sizeof(*arg)); | |
1454 | ||
1455 | free_token(token); | |
1456 | type = process_arg(event, arg, &token); | |
1457 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1458 | goto out_free; | |
1459 | ||
1460 | field = malloc_or_die(sizeof(*field)); | |
1461 | memset(field, 0, sizeof(field)); | |
1462 | ||
1463 | value = arg_eval(arg); | |
1464 | field->value = strdup(value); | |
1465 | ||
1466 | free_token(token); | |
1467 | type = process_arg(event, arg, &token); | |
1468 | if (test_type_token(type, token, EVENT_OP, (char *)"}")) | |
1469 | goto out_free; | |
1470 | ||
1471 | value = arg_eval(arg); | |
1472 | field->str = strdup(value); | |
1473 | free_arg(arg); | |
1474 | arg = NULL; | |
1475 | ||
1476 | *list = field; | |
1477 | list = &field->next; | |
1478 | ||
1479 | free_token(token); | |
1480 | type = read_token_item(&token); | |
1481 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); | |
1482 | ||
1483 | *tok = token; | |
1484 | return type; | |
1485 | ||
1486 | out_free: | |
1487 | free_arg(arg); | |
1488 | free_token(token); | |
1489 | ||
1490 | return EVENT_ERROR; | |
1491 | } | |
1492 | ||
1493 | static enum event_type | |
1494 | process_flags(struct event *event, struct print_arg *arg, char **tok) | |
1495 | { | |
1496 | struct print_arg *field; | |
1497 | enum event_type type; | |
1498 | char *token; | |
1499 | ||
1500 | memset(arg, 0, sizeof(*arg)); | |
1501 | arg->type = PRINT_FLAGS; | |
1502 | ||
1503 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1504 | return EVENT_ERROR; | |
1505 | ||
1506 | field = malloc_or_die(sizeof(*field)); | |
1507 | ||
1508 | type = process_arg(event, field, &token); | |
1509 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1510 | goto out_free; | |
1511 | ||
1512 | arg->flags.field = field; | |
1513 | ||
1514 | type = read_token_item(&token); | |
1515 | if (event_item_type(type)) { | |
1516 | arg->flags.delim = token; | |
1517 | type = read_token_item(&token); | |
1518 | } | |
1519 | ||
1520 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1521 | goto out_free; | |
1522 | ||
1523 | type = process_fields(event, &arg->flags.flags, &token); | |
1524 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1525 | goto out_free; | |
1526 | ||
1527 | free_token(token); | |
1528 | type = read_token_item(tok); | |
1529 | return type; | |
1530 | ||
1531 | out_free: | |
1532 | free_token(token); | |
1533 | return EVENT_ERROR; | |
1534 | } | |
1535 | ||
1536 | static enum event_type | |
1537 | process_symbols(struct event *event, struct print_arg *arg, char **tok) | |
1538 | { | |
1539 | struct print_arg *field; | |
1540 | enum event_type type; | |
1541 | char *token; | |
1542 | ||
1543 | memset(arg, 0, sizeof(*arg)); | |
1544 | arg->type = PRINT_SYMBOL; | |
1545 | ||
1546 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1547 | return EVENT_ERROR; | |
1548 | ||
1549 | field = malloc_or_die(sizeof(*field)); | |
1550 | ||
1551 | type = process_arg(event, field, &token); | |
1552 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1553 | goto out_free; | |
1554 | ||
1555 | arg->symbol.field = field; | |
1556 | ||
1557 | type = process_fields(event, &arg->symbol.symbols, &token); | |
1558 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1559 | goto out_free; | |
1560 | ||
1561 | free_token(token); | |
1562 | type = read_token_item(tok); | |
1563 | return type; | |
1564 | ||
1565 | out_free: | |
1566 | free_token(token); | |
1567 | return EVENT_ERROR; | |
1568 | } | |
1569 | ||
1570 | static enum event_type | |
1571 | process_paren(struct event *event, struct print_arg *arg, char **tok) | |
1572 | { | |
1573 | struct print_arg *item_arg; | |
1574 | enum event_type type; | |
1575 | char *token; | |
1576 | ||
1577 | type = process_arg(event, arg, &token); | |
1578 | ||
1579 | if (type == EVENT_ERROR) | |
1580 | return EVENT_ERROR; | |
1581 | ||
b99af874 SR |
1582 | if (type == EVENT_OP) |
1583 | type = process_op(event, arg, &token); | |
ea4010d1 | 1584 | |
b99af874 SR |
1585 | if (type == EVENT_ERROR) |
1586 | return EVENT_ERROR; | |
ea4010d1 SR |
1587 | |
1588 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) { | |
1589 | free_token(token); | |
1590 | return EVENT_ERROR; | |
1591 | } | |
1592 | ||
1593 | free_token(token); | |
1594 | type = read_token_item(&token); | |
1595 | ||
1596 | /* | |
1597 | * If the next token is an item or another open paren, then | |
1598 | * this was a typecast. | |
1599 | */ | |
1600 | if (event_item_type(type) || | |
1601 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { | |
1602 | ||
1603 | /* make this a typecast and contine */ | |
1604 | ||
1605 | /* prevous must be an atom */ | |
1606 | if (arg->type != PRINT_ATOM) | |
1607 | die("previous needed to be PRINT_ATOM"); | |
1608 | ||
1609 | item_arg = malloc_or_die(sizeof(*item_arg)); | |
1610 | ||
1611 | arg->type = PRINT_TYPE; | |
1612 | arg->typecast.type = arg->atom.atom; | |
1613 | arg->typecast.item = item_arg; | |
1614 | type = process_arg_token(event, item_arg, &token, type); | |
1615 | ||
1616 | } | |
1617 | ||
1618 | *tok = token; | |
1619 | return type; | |
1620 | } | |
1621 | ||
1622 | ||
1623 | static enum event_type | |
1624 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) | |
1625 | { | |
1626 | enum event_type type; | |
1627 | char *token; | |
1628 | ||
1629 | if (read_expected(EVENT_DELIM, (char *)"(") < 0) | |
1630 | return EVENT_ERROR; | |
1631 | ||
1632 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1633 | goto fail; | |
1634 | ||
1635 | arg->type = PRINT_STRING; | |
1636 | arg->string.string = token; | |
561f732c | 1637 | arg->string.offset = -1; |
ea4010d1 SR |
1638 | |
1639 | if (read_expected(EVENT_DELIM, (char *)")") < 0) | |
1640 | return EVENT_ERROR; | |
1641 | ||
1642 | type = read_token(&token); | |
1643 | *tok = token; | |
1644 | ||
1645 | return type; | |
1646 | fail: | |
1647 | free_token(token); | |
1648 | return EVENT_ERROR; | |
1649 | } | |
1650 | ||
1651 | enum event_type | |
1652 | process_arg_token(struct event *event, struct print_arg *arg, | |
1653 | char **tok, enum event_type type) | |
1654 | { | |
1655 | char *token; | |
1656 | char *atom; | |
1657 | ||
1658 | token = *tok; | |
1659 | ||
1660 | switch (type) { | |
1661 | case EVENT_ITEM: | |
1662 | if (strcmp(token, "REC") == 0) { | |
1663 | free_token(token); | |
1664 | type = process_entry(event, arg, &token); | |
1665 | } else if (strcmp(token, "__print_flags") == 0) { | |
1666 | free_token(token); | |
1667 | type = process_flags(event, arg, &token); | |
1668 | } else if (strcmp(token, "__print_symbolic") == 0) { | |
1669 | free_token(token); | |
1670 | type = process_symbols(event, arg, &token); | |
1671 | } else if (strcmp(token, "__get_str") == 0) { | |
1672 | free_token(token); | |
1673 | type = process_str(event, arg, &token); | |
1674 | } else { | |
1675 | atom = token; | |
1676 | /* test the next token */ | |
1677 | type = read_token_item(&token); | |
1678 | ||
1679 | /* atoms can be more than one token long */ | |
1680 | while (type == EVENT_ITEM) { | |
1681 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); | |
1682 | strcat(atom, " "); | |
1683 | strcat(atom, token); | |
1684 | free_token(token); | |
1685 | type = read_token_item(&token); | |
1686 | } | |
1687 | ||
1688 | /* todo, test for function */ | |
1689 | ||
1690 | arg->type = PRINT_ATOM; | |
1691 | arg->atom.atom = atom; | |
1692 | } | |
1693 | break; | |
1694 | case EVENT_DQUOTE: | |
1695 | case EVENT_SQUOTE: | |
1696 | arg->type = PRINT_ATOM; | |
1697 | arg->atom.atom = token; | |
1698 | type = read_token_item(&token); | |
1699 | break; | |
1700 | case EVENT_DELIM: | |
1701 | if (strcmp(token, "(") == 0) { | |
1702 | free_token(token); | |
1703 | type = process_paren(event, arg, &token); | |
1704 | break; | |
1705 | } | |
1706 | case EVENT_OP: | |
1707 | /* handle single ops */ | |
1708 | arg->type = PRINT_OP; | |
1709 | arg->op.op = token; | |
1710 | arg->op.left = NULL; | |
1711 | type = process_op(event, arg, &token); | |
1712 | ||
1713 | break; | |
1714 | ||
1715 | case EVENT_ERROR ... EVENT_NEWLINE: | |
1716 | default: | |
1717 | die("unexpected type %d", type); | |
1718 | } | |
1719 | *tok = token; | |
1720 | ||
1721 | return type; | |
1722 | } | |
1723 | ||
1724 | static int event_read_print_args(struct event *event, struct print_arg **list) | |
1725 | { | |
f1d1feec | 1726 | enum event_type type = EVENT_ERROR; |
ea4010d1 SR |
1727 | struct print_arg *arg; |
1728 | char *token; | |
1729 | int args = 0; | |
1730 | ||
1731 | do { | |
f1d1feec SR |
1732 | if (type == EVENT_NEWLINE) { |
1733 | free_token(token); | |
1734 | type = read_token_item(&token); | |
1735 | continue; | |
1736 | } | |
1737 | ||
ea4010d1 SR |
1738 | arg = malloc_or_die(sizeof(*arg)); |
1739 | memset(arg, 0, sizeof(*arg)); | |
1740 | ||
1741 | type = process_arg(event, arg, &token); | |
1742 | ||
1743 | if (type == EVENT_ERROR) { | |
1744 | free_arg(arg); | |
1745 | return -1; | |
1746 | } | |
1747 | ||
1748 | *list = arg; | |
1749 | args++; | |
1750 | ||
1751 | if (type == EVENT_OP) { | |
1752 | type = process_op(event, arg, &token); | |
1753 | list = &arg->next; | |
1754 | continue; | |
1755 | } | |
1756 | ||
1757 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { | |
1758 | free_token(token); | |
1759 | *list = arg; | |
1760 | list = &arg->next; | |
1761 | continue; | |
1762 | } | |
1763 | break; | |
1764 | } while (type != EVENT_NONE); | |
1765 | ||
1766 | if (type != EVENT_NONE) | |
1767 | free_token(token); | |
1768 | ||
1769 | return args; | |
1770 | } | |
1771 | ||
1772 | static int event_read_print(struct event *event) | |
1773 | { | |
1774 | enum event_type type; | |
1775 | char *token; | |
1776 | int ret; | |
1777 | ||
1778 | if (read_expected_item(EVENT_ITEM, (char *)"print") < 0) | |
1779 | return -1; | |
1780 | ||
1781 | if (read_expected(EVENT_ITEM, (char *)"fmt") < 0) | |
1782 | return -1; | |
1783 | ||
1784 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
1785 | return -1; | |
1786 | ||
1787 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) | |
1788 | goto fail; | |
1789 | ||
924a79af | 1790 | concat: |
ea4010d1 SR |
1791 | event->print_fmt.format = token; |
1792 | event->print_fmt.args = NULL; | |
1793 | ||
1794 | /* ok to have no arg */ | |
1795 | type = read_token_item(&token); | |
1796 | ||
1797 | if (type == EVENT_NONE) | |
1798 | return 0; | |
1799 | ||
924a79af SR |
1800 | /* Handle concatination of print lines */ |
1801 | if (type == EVENT_DQUOTE) { | |
1802 | char *cat; | |
1803 | ||
1804 | cat = malloc_or_die(strlen(event->print_fmt.format) + | |
1805 | strlen(token) + 1); | |
1806 | strcpy(cat, event->print_fmt.format); | |
1807 | strcat(cat, token); | |
1808 | free_token(token); | |
1809 | free_token(event->print_fmt.format); | |
1810 | event->print_fmt.format = NULL; | |
1811 | token = cat; | |
1812 | goto concat; | |
1813 | } | |
1814 | ||
ea4010d1 SR |
1815 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
1816 | goto fail; | |
1817 | ||
1818 | free_token(token); | |
1819 | ||
1820 | ret = event_read_print_args(event, &event->print_fmt.args); | |
1821 | if (ret < 0) | |
1822 | return -1; | |
1823 | ||
0d1da915 | 1824 | return ret; |
ea4010d1 SR |
1825 | |
1826 | fail: | |
1827 | free_token(token); | |
1828 | return -1; | |
1829 | } | |
1830 | ||
1831 | static struct format_field * | |
1832 | find_common_field(struct event *event, const char *name) | |
1833 | { | |
1834 | struct format_field *format; | |
1835 | ||
1836 | for (format = event->format.common_fields; | |
1837 | format; format = format->next) { | |
1838 | if (strcmp(format->name, name) == 0) | |
1839 | break; | |
1840 | } | |
1841 | ||
1842 | return format; | |
1843 | } | |
1844 | ||
1845 | static struct format_field * | |
1846 | find_field(struct event *event, const char *name) | |
1847 | { | |
1848 | struct format_field *format; | |
1849 | ||
1850 | for (format = event->format.fields; | |
1851 | format; format = format->next) { | |
1852 | if (strcmp(format->name, name) == 0) | |
1853 | break; | |
1854 | } | |
1855 | ||
1856 | return format; | |
1857 | } | |
1858 | ||
1859 | static struct format_field * | |
1860 | find_any_field(struct event *event, const char *name) | |
1861 | { | |
1862 | struct format_field *format; | |
1863 | ||
1864 | format = find_common_field(event, name); | |
1865 | if (format) | |
1866 | return format; | |
1867 | return find_field(event, name); | |
1868 | } | |
1869 | ||
1870 | static unsigned long long read_size(void *ptr, int size) | |
1871 | { | |
1872 | switch (size) { | |
1873 | case 1: | |
1874 | return *(unsigned char *)ptr; | |
1875 | case 2: | |
1876 | return data2host2(ptr); | |
1877 | case 4: | |
1878 | return data2host4(ptr); | |
1879 | case 8: | |
1880 | return data2host8(ptr); | |
1881 | default: | |
1882 | /* BUG! */ | |
1883 | return 0; | |
1884 | } | |
1885 | } | |
1886 | ||
46538818 FW |
1887 | unsigned long long |
1888 | raw_field_value(struct event *event, const char *name, void *data) | |
1889 | { | |
1890 | struct format_field *field; | |
1891 | ||
1892 | field = find_any_field(event, name); | |
1893 | if (!field) | |
1894 | return 0ULL; | |
1895 | ||
1896 | return read_size(data + field->offset, field->size); | |
1897 | } | |
1898 | ||
1899 | void *raw_field_ptr(struct event *event, const char *name, void *data) | |
1900 | { | |
1901 | struct format_field *field; | |
1902 | ||
1903 | field = find_any_field(event, name); | |
1904 | if (!field) | |
1905 | return NULL; | |
1906 | ||
1907 | return data + field->offset; | |
1908 | } | |
1909 | ||
ea4010d1 SR |
1910 | static int get_common_info(const char *type, int *offset, int *size) |
1911 | { | |
1912 | struct event *event; | |
1913 | struct format_field *field; | |
1914 | ||
1915 | /* | |
1916 | * All events should have the same common elements. | |
1917 | * Pick any event to find where the type is; | |
1918 | */ | |
1919 | if (!event_list) | |
1920 | die("no event_list!"); | |
1921 | ||
1922 | event = event_list; | |
1923 | field = find_common_field(event, type); | |
1924 | if (!field) | |
1925 | die("field '%s' not found", type); | |
1926 | ||
1927 | *offset = field->offset; | |
1928 | *size = field->size; | |
1929 | ||
1930 | return 0; | |
1931 | } | |
1932 | ||
cda48461 SR |
1933 | static int __parse_common(void *data, int *size, int *offset, |
1934 | char *name) | |
ea4010d1 | 1935 | { |
ea4010d1 SR |
1936 | int ret; |
1937 | ||
cda48461 SR |
1938 | if (!*size) { |
1939 | ret = get_common_info(name, offset, size); | |
ea4010d1 SR |
1940 | if (ret < 0) |
1941 | return ret; | |
1942 | } | |
cda48461 SR |
1943 | return read_size(data + *offset, *size); |
1944 | } | |
1945 | ||
1946 | int trace_parse_common_type(void *data) | |
1947 | { | |
1948 | static int type_offset; | |
1949 | static int type_size; | |
1950 | ||
1951 | return __parse_common(data, &type_size, &type_offset, | |
1952 | (char *)"common_type"); | |
ea4010d1 SR |
1953 | } |
1954 | ||
1955 | static int parse_common_pid(void *data) | |
1956 | { | |
1957 | static int pid_offset; | |
1958 | static int pid_size; | |
cda48461 SR |
1959 | |
1960 | return __parse_common(data, &pid_size, &pid_offset, | |
1961 | (char *)"common_pid"); | |
1962 | } | |
1963 | ||
1964 | static int parse_common_pc(void *data) | |
1965 | { | |
1966 | static int pc_offset; | |
1967 | static int pc_size; | |
1968 | ||
1969 | return __parse_common(data, &pc_size, &pc_offset, | |
1970 | (char *)"common_preempt_count"); | |
1971 | } | |
1972 | ||
1973 | static int parse_common_flags(void *data) | |
1974 | { | |
1975 | static int flags_offset; | |
1976 | static int flags_size; | |
1977 | ||
1978 | return __parse_common(data, &flags_size, &flags_offset, | |
1979 | (char *)"common_flags"); | |
1980 | } | |
1981 | ||
1982 | static int parse_common_lock_depth(void *data) | |
1983 | { | |
1984 | static int ld_offset; | |
1985 | static int ld_size; | |
ea4010d1 SR |
1986 | int ret; |
1987 | ||
cda48461 SR |
1988 | ret = __parse_common(data, &ld_size, &ld_offset, |
1989 | (char *)"common_lock_depth"); | |
1990 | if (ret < 0) | |
1991 | return -1; | |
ea4010d1 | 1992 | |
cda48461 | 1993 | return ret; |
ea4010d1 SR |
1994 | } |
1995 | ||
ec156764 | 1996 | struct event *trace_find_event(int id) |
ea4010d1 SR |
1997 | { |
1998 | struct event *event; | |
1999 | ||
2000 | for (event = event_list; event; event = event->next) { | |
2001 | if (event->id == id) | |
2002 | break; | |
2003 | } | |
2004 | return event; | |
2005 | } | |
2006 | ||
2007 | static unsigned long long eval_num_arg(void *data, int size, | |
2008 | struct event *event, struct print_arg *arg) | |
2009 | { | |
2010 | unsigned long long val = 0; | |
2011 | unsigned long long left, right; | |
0959b8d6 | 2012 | struct print_arg *larg; |
ea4010d1 SR |
2013 | |
2014 | switch (arg->type) { | |
2015 | case PRINT_NULL: | |
2016 | /* ?? */ | |
2017 | return 0; | |
2018 | case PRINT_ATOM: | |
2019 | return strtoull(arg->atom.atom, NULL, 0); | |
2020 | case PRINT_FIELD: | |
2021 | if (!arg->field.field) { | |
2022 | arg->field.field = find_any_field(event, arg->field.name); | |
2023 | if (!arg->field.field) | |
2024 | die("field %s not found", arg->field.name); | |
2025 | } | |
2026 | /* must be a number */ | |
2027 | val = read_size(data + arg->field.field->offset, | |
2028 | arg->field.field->size); | |
2029 | break; | |
2030 | case PRINT_FLAGS: | |
2031 | case PRINT_SYMBOL: | |
2032 | break; | |
2033 | case PRINT_TYPE: | |
2034 | return eval_num_arg(data, size, event, arg->typecast.item); | |
2035 | case PRINT_STRING: | |
2036 | return 0; | |
2037 | break; | |
2038 | case PRINT_OP: | |
0959b8d6 SR |
2039 | if (strcmp(arg->op.op, "[") == 0) { |
2040 | /* | |
2041 | * Arrays are special, since we don't want | |
2042 | * to read the arg as is. | |
2043 | */ | |
2044 | if (arg->op.left->type != PRINT_FIELD) | |
2045 | goto default_op; /* oops, all bets off */ | |
2046 | larg = arg->op.left; | |
2047 | if (!larg->field.field) { | |
2048 | larg->field.field = | |
2049 | find_any_field(event, larg->field.name); | |
2050 | if (!larg->field.field) | |
2051 | die("field %s not found", larg->field.name); | |
2052 | } | |
2053 | right = eval_num_arg(data, size, event, arg->op.right); | |
2054 | val = read_size(data + larg->field.field->offset + | |
2055 | right * long_size, long_size); | |
2056 | break; | |
2057 | } | |
2058 | default_op: | |
ea4010d1 SR |
2059 | left = eval_num_arg(data, size, event, arg->op.left); |
2060 | right = eval_num_arg(data, size, event, arg->op.right); | |
2061 | switch (arg->op.op[0]) { | |
2062 | case '|': | |
2063 | if (arg->op.op[1]) | |
2064 | val = left || right; | |
2065 | else | |
2066 | val = left | right; | |
2067 | break; | |
2068 | case '&': | |
2069 | if (arg->op.op[1]) | |
2070 | val = left && right; | |
2071 | else | |
2072 | val = left & right; | |
2073 | break; | |
2074 | case '<': | |
2075 | switch (arg->op.op[1]) { | |
2076 | case 0: | |
2077 | val = left < right; | |
2078 | break; | |
2079 | case '<': | |
2080 | val = left << right; | |
2081 | break; | |
2082 | case '=': | |
2083 | val = left <= right; | |
2084 | break; | |
2085 | default: | |
2086 | die("unknown op '%s'", arg->op.op); | |
2087 | } | |
2088 | break; | |
2089 | case '>': | |
2090 | switch (arg->op.op[1]) { | |
2091 | case 0: | |
2092 | val = left > right; | |
2093 | break; | |
2094 | case '>': | |
2095 | val = left >> right; | |
2096 | break; | |
2097 | case '=': | |
2098 | val = left >= right; | |
2099 | break; | |
2100 | default: | |
2101 | die("unknown op '%s'", arg->op.op); | |
2102 | } | |
2103 | break; | |
2104 | case '=': | |
2105 | if (arg->op.op[1] != '=') | |
2106 | die("unknown op '%s'", arg->op.op); | |
2107 | val = left == right; | |
2108 | break; | |
2109 | default: | |
2110 | die("unknown op '%s'", arg->op.op); | |
2111 | } | |
2112 | break; | |
2113 | default: /* not sure what to do there */ | |
2114 | return 0; | |
2115 | } | |
2116 | return val; | |
2117 | } | |
2118 | ||
2119 | struct flag { | |
2120 | const char *name; | |
2121 | unsigned long long value; | |
2122 | }; | |
2123 | ||
2124 | static const struct flag flags[] = { | |
2125 | { "HI_SOFTIRQ", 0 }, | |
2126 | { "TIMER_SOFTIRQ", 1 }, | |
2127 | { "NET_TX_SOFTIRQ", 2 }, | |
2128 | { "NET_RX_SOFTIRQ", 3 }, | |
2129 | { "BLOCK_SOFTIRQ", 4 }, | |
b934cdd5 TZ |
2130 | { "BLOCK_IOPOLL_SOFTIRQ", 5 }, |
2131 | { "TASKLET_SOFTIRQ", 6 }, | |
2132 | { "SCHED_SOFTIRQ", 7 }, | |
2133 | { "HRTIMER_SOFTIRQ", 8 }, | |
2134 | { "RCU_SOFTIRQ", 9 }, | |
ea4010d1 SR |
2135 | |
2136 | { "HRTIMER_NORESTART", 0 }, | |
2137 | { "HRTIMER_RESTART", 1 }, | |
2138 | }; | |
2139 | ||
2140 | static unsigned long long eval_flag(const char *flag) | |
2141 | { | |
2142 | int i; | |
2143 | ||
2144 | /* | |
2145 | * Some flags in the format files do not get converted. | |
2146 | * If the flag is not numeric, see if it is something that | |
2147 | * we already know about. | |
2148 | */ | |
2149 | if (isdigit(flag[0])) | |
2150 | return strtoull(flag, NULL, 0); | |
2151 | ||
2152 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
2153 | if (strcmp(flags[i].name, flag) == 0) | |
2154 | return flags[i].value; | |
2155 | ||
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | static void print_str_arg(void *data, int size, | |
2160 | struct event *event, struct print_arg *arg) | |
2161 | { | |
2162 | struct print_flag_sym *flag; | |
2163 | unsigned long long val, fval; | |
2164 | char *str; | |
2165 | int print; | |
2166 | ||
2167 | switch (arg->type) { | |
2168 | case PRINT_NULL: | |
2169 | /* ?? */ | |
2170 | return; | |
2171 | case PRINT_ATOM: | |
2172 | printf("%s", arg->atom.atom); | |
2173 | return; | |
2174 | case PRINT_FIELD: | |
2175 | if (!arg->field.field) { | |
2176 | arg->field.field = find_any_field(event, arg->field.name); | |
2177 | if (!arg->field.field) | |
2178 | die("field %s not found", arg->field.name); | |
2179 | } | |
2180 | str = malloc_or_die(arg->field.field->size + 1); | |
2181 | memcpy(str, data + arg->field.field->offset, | |
2182 | arg->field.field->size); | |
2183 | str[arg->field.field->size] = 0; | |
d498bc1f | 2184 | printf("%s", str); |
ea4010d1 SR |
2185 | free(str); |
2186 | break; | |
2187 | case PRINT_FLAGS: | |
2188 | val = eval_num_arg(data, size, event, arg->flags.field); | |
2189 | print = 0; | |
2190 | for (flag = arg->flags.flags; flag; flag = flag->next) { | |
2191 | fval = eval_flag(flag->value); | |
2192 | if (!val && !fval) { | |
2193 | printf("%s", flag->str); | |
2194 | break; | |
2195 | } | |
2196 | if (fval && (val & fval) == fval) { | |
2197 | if (print && arg->flags.delim) | |
2198 | printf("%s", arg->flags.delim); | |
2199 | printf("%s", flag->str); | |
2200 | print = 1; | |
2201 | val &= ~fval; | |
2202 | } | |
2203 | } | |
2204 | break; | |
2205 | case PRINT_SYMBOL: | |
2206 | val = eval_num_arg(data, size, event, arg->symbol.field); | |
2207 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { | |
2208 | fval = eval_flag(flag->value); | |
2209 | if (val == fval) { | |
2210 | printf("%s", flag->str); | |
2211 | break; | |
2212 | } | |
2213 | } | |
2214 | break; | |
2215 | ||
2216 | case PRINT_TYPE: | |
2217 | break; | |
561f732c FW |
2218 | case PRINT_STRING: { |
2219 | int str_offset; | |
2220 | ||
2221 | if (arg->string.offset == -1) { | |
2222 | struct format_field *f; | |
2223 | ||
2224 | f = find_any_field(event, arg->string.string); | |
2225 | arg->string.offset = f->offset; | |
2226 | } | |
2227 | str_offset = *(int *)(data + arg->string.offset); | |
2228 | str_offset &= 0xffff; | |
2229 | printf("%s", ((char *)data) + str_offset); | |
ea4010d1 | 2230 | break; |
561f732c | 2231 | } |
ea4010d1 SR |
2232 | case PRINT_OP: |
2233 | /* | |
2234 | * The only op for string should be ? : | |
2235 | */ | |
2236 | if (arg->op.op[0] != '?') | |
2237 | return; | |
2238 | val = eval_num_arg(data, size, event, arg->op.left); | |
2239 | if (val) | |
2240 | print_str_arg(data, size, event, arg->op.right->op.left); | |
2241 | else | |
2242 | print_str_arg(data, size, event, arg->op.right->op.right); | |
2243 | break; | |
2244 | default: | |
2245 | /* well... */ | |
2246 | break; | |
2247 | } | |
2248 | } | |
2249 | ||
2250 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) | |
2251 | { | |
2252 | static struct format_field *field, *ip_field; | |
2253 | struct print_arg *args, *arg, **next; | |
2254 | unsigned long long ip, val; | |
2255 | char *ptr; | |
2256 | void *bptr; | |
2257 | ||
2258 | if (!field) { | |
2259 | field = find_field(event, "buf"); | |
2260 | if (!field) | |
2261 | die("can't find buffer field for binary printk"); | |
2262 | ip_field = find_field(event, "ip"); | |
2263 | if (!ip_field) | |
2264 | die("can't find ip field for binary printk"); | |
2265 | } | |
2266 | ||
2267 | ip = read_size(data + ip_field->offset, ip_field->size); | |
2268 | ||
2269 | /* | |
2270 | * The first arg is the IP pointer. | |
2271 | */ | |
2272 | args = malloc_or_die(sizeof(*args)); | |
2273 | arg = args; | |
2274 | arg->next = NULL; | |
2275 | next = &arg->next; | |
2276 | ||
2277 | arg->type = PRINT_ATOM; | |
2278 | arg->atom.atom = malloc_or_die(32); | |
2279 | sprintf(arg->atom.atom, "%lld", ip); | |
2280 | ||
2281 | /* skip the first "%pf : " */ | |
2282 | for (ptr = fmt + 6, bptr = data + field->offset; | |
2283 | bptr < data + size && *ptr; ptr++) { | |
2284 | int ls = 0; | |
2285 | ||
2286 | if (*ptr == '%') { | |
2287 | process_again: | |
2288 | ptr++; | |
2289 | switch (*ptr) { | |
2290 | case '%': | |
2291 | break; | |
2292 | case 'l': | |
2293 | ls++; | |
2294 | goto process_again; | |
2295 | case 'L': | |
2296 | ls = 2; | |
2297 | goto process_again; | |
2298 | case '0' ... '9': | |
2299 | goto process_again; | |
2300 | case 'p': | |
2301 | ls = 1; | |
2302 | /* fall through */ | |
2303 | case 'd': | |
2304 | case 'u': | |
2305 | case 'x': | |
2306 | case 'i': | |
ffa18955 SR |
2307 | /* the pointers are always 4 bytes aligned */ |
2308 | bptr = (void *)(((unsigned long)bptr + 3) & | |
2309 | ~3); | |
ea4010d1 SR |
2310 | switch (ls) { |
2311 | case 0: | |
2312 | case 1: | |
2313 | ls = long_size; | |
2314 | break; | |
2315 | case 2: | |
2316 | ls = 8; | |
2317 | default: | |
2318 | break; | |
2319 | } | |
2320 | val = read_size(bptr, ls); | |
2321 | bptr += ls; | |
2322 | arg = malloc_or_die(sizeof(*arg)); | |
2323 | arg->next = NULL; | |
2324 | arg->type = PRINT_ATOM; | |
2325 | arg->atom.atom = malloc_or_die(32); | |
2326 | sprintf(arg->atom.atom, "%lld", val); | |
2327 | *next = arg; | |
2328 | next = &arg->next; | |
2329 | break; | |
2330 | case 's': | |
2331 | arg = malloc_or_die(sizeof(*arg)); | |
2332 | arg->next = NULL; | |
2333 | arg->type = PRINT_STRING; | |
2334 | arg->string.string = strdup(bptr); | |
2335 | bptr += strlen(bptr) + 1; | |
2336 | *next = arg; | |
2337 | next = &arg->next; | |
2338 | default: | |
2339 | break; | |
2340 | } | |
2341 | } | |
2342 | } | |
2343 | ||
2344 | return args; | |
2345 | } | |
2346 | ||
2347 | static void free_args(struct print_arg *args) | |
2348 | { | |
2349 | struct print_arg *next; | |
2350 | ||
2351 | while (args) { | |
2352 | next = args->next; | |
2353 | ||
2354 | if (args->type == PRINT_ATOM) | |
2355 | free(args->atom.atom); | |
2356 | else | |
2357 | free(args->string.string); | |
2358 | free(args); | |
2359 | args = next; | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | static char *get_bprint_format(void *data, int size __unused, struct event *event) | |
2364 | { | |
2365 | unsigned long long addr; | |
2366 | static struct format_field *field; | |
2367 | struct printk_map *printk; | |
2368 | char *format; | |
2369 | char *p; | |
2370 | ||
2371 | if (!field) { | |
2372 | field = find_field(event, "fmt"); | |
2373 | if (!field) | |
2374 | die("can't find format field for binary printk"); | |
2375 | printf("field->offset = %d size=%d\n", field->offset, field->size); | |
2376 | } | |
2377 | ||
2378 | addr = read_size(data + field->offset, field->size); | |
2379 | ||
2380 | printk = find_printk(addr); | |
2381 | if (!printk) { | |
2382 | format = malloc_or_die(45); | |
2383 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", | |
2384 | addr); | |
2385 | return format; | |
2386 | } | |
2387 | ||
2388 | p = printk->printk; | |
2389 | /* Remove any quotes. */ | |
2390 | if (*p == '"') | |
2391 | p++; | |
2392 | format = malloc_or_die(strlen(p) + 10); | |
2393 | sprintf(format, "%s : %s", "%pf", p); | |
2394 | /* remove ending quotes and new line since we will add one too */ | |
2395 | p = format + strlen(format) - 1; | |
2396 | if (*p == '"') | |
2397 | *p = 0; | |
2398 | ||
2399 | p -= 2; | |
2400 | if (strcmp(p, "\\n") == 0) | |
2401 | *p = 0; | |
2402 | ||
2403 | return format; | |
2404 | } | |
2405 | ||
2406 | static void pretty_print(void *data, int size, struct event *event) | |
2407 | { | |
2408 | struct print_fmt *print_fmt = &event->print_fmt; | |
2409 | struct print_arg *arg = print_fmt->args; | |
2410 | struct print_arg *args = NULL; | |
2411 | const char *ptr = print_fmt->format; | |
2412 | unsigned long long val; | |
2413 | struct func_map *func; | |
2414 | const char *saveptr; | |
2415 | char *bprint_fmt = NULL; | |
2416 | char format[32]; | |
2417 | int show_func; | |
2418 | int len; | |
2419 | int ls; | |
2420 | ||
2421 | if (event->flags & EVENT_FL_ISFUNC) | |
2422 | ptr = " %pF <-- %pF"; | |
2423 | ||
2424 | if (event->flags & EVENT_FL_ISBPRINT) { | |
2425 | bprint_fmt = get_bprint_format(data, size, event); | |
2426 | args = make_bprint_args(bprint_fmt, data, size, event); | |
2427 | arg = args; | |
2428 | ptr = bprint_fmt; | |
2429 | } | |
2430 | ||
2431 | for (; *ptr; ptr++) { | |
2432 | ls = 0; | |
91ff2bc1 SR |
2433 | if (*ptr == '\\') { |
2434 | ptr++; | |
2435 | switch (*ptr) { | |
2436 | case 'n': | |
2437 | printf("\n"); | |
2438 | break; | |
2439 | case 't': | |
2440 | printf("\t"); | |
2441 | break; | |
2442 | case 'r': | |
2443 | printf("\r"); | |
2444 | break; | |
2445 | case '\\': | |
2446 | printf("\\"); | |
2447 | break; | |
2448 | default: | |
2449 | printf("%c", *ptr); | |
2450 | break; | |
2451 | } | |
2452 | ||
2453 | } else if (*ptr == '%') { | |
ea4010d1 SR |
2454 | saveptr = ptr; |
2455 | show_func = 0; | |
2456 | cont_process: | |
2457 | ptr++; | |
2458 | switch (*ptr) { | |
2459 | case '%': | |
2460 | printf("%%"); | |
2461 | break; | |
2462 | case 'l': | |
2463 | ls++; | |
2464 | goto cont_process; | |
2465 | case 'L': | |
2466 | ls = 2; | |
2467 | goto cont_process; | |
2468 | case 'z': | |
2469 | case 'Z': | |
2470 | case '0' ... '9': | |
2471 | goto cont_process; | |
2472 | case 'p': | |
2473 | if (long_size == 4) | |
2474 | ls = 1; | |
2475 | else | |
2476 | ls = 2; | |
2477 | ||
2478 | if (*(ptr+1) == 'F' || | |
2479 | *(ptr+1) == 'f') { | |
2480 | ptr++; | |
2481 | show_func = *ptr; | |
2482 | } | |
2483 | ||
2484 | /* fall through */ | |
2485 | case 'd': | |
2486 | case 'i': | |
2487 | case 'x': | |
2488 | case 'X': | |
2489 | case 'u': | |
2490 | if (!arg) | |
2491 | die("no argument match"); | |
2492 | ||
2493 | len = ((unsigned long)ptr + 1) - | |
2494 | (unsigned long)saveptr; | |
2495 | ||
2496 | /* should never happen */ | |
2497 | if (len > 32) | |
2498 | die("bad format!"); | |
2499 | ||
2500 | memcpy(format, saveptr, len); | |
2501 | format[len] = 0; | |
2502 | ||
2503 | val = eval_num_arg(data, size, event, arg); | |
2504 | arg = arg->next; | |
2505 | ||
2506 | if (show_func) { | |
2507 | func = find_func(val); | |
2508 | if (func) { | |
2509 | printf("%s", func->func); | |
2510 | if (show_func == 'F') | |
2511 | printf("+0x%llx", | |
2512 | val - func->addr); | |
2513 | break; | |
2514 | } | |
2515 | } | |
2516 | switch (ls) { | |
2517 | case 0: | |
2518 | printf(format, (int)val); | |
2519 | break; | |
2520 | case 1: | |
2521 | printf(format, (long)val); | |
2522 | break; | |
2523 | case 2: | |
2524 | printf(format, (long long)val); | |
2525 | break; | |
2526 | default: | |
2527 | die("bad count (%d)", ls); | |
2528 | } | |
2529 | break; | |
2530 | case 's': | |
2531 | if (!arg) | |
2532 | die("no matching argument"); | |
2533 | ||
2534 | print_str_arg(data, size, event, arg); | |
2535 | arg = arg->next; | |
2536 | break; | |
2537 | default: | |
2538 | printf(">%c<", *ptr); | |
2539 | ||
2540 | } | |
2541 | } else | |
2542 | printf("%c", *ptr); | |
2543 | } | |
2544 | ||
2545 | if (args) { | |
2546 | free_args(args); | |
2547 | free(bprint_fmt); | |
2548 | } | |
2549 | } | |
2550 | ||
2551 | static inline int log10_cpu(int nb) | |
2552 | { | |
2553 | if (nb / 100) | |
2554 | return 3; | |
2555 | if (nb / 10) | |
2556 | return 2; | |
2557 | return 1; | |
2558 | } | |
2559 | ||
cda48461 SR |
2560 | static void print_lat_fmt(void *data, int size __unused) |
2561 | { | |
2562 | unsigned int lat_flags; | |
2563 | unsigned int pc; | |
2564 | int lock_depth; | |
2565 | int hardirq; | |
2566 | int softirq; | |
2567 | ||
2568 | lat_flags = parse_common_flags(data); | |
2569 | pc = parse_common_pc(data); | |
2570 | lock_depth = parse_common_lock_depth(data); | |
2571 | ||
2572 | hardirq = lat_flags & TRACE_FLAG_HARDIRQ; | |
2573 | softirq = lat_flags & TRACE_FLAG_SOFTIRQ; | |
2574 | ||
2575 | printf("%c%c%c", | |
2576 | (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' : | |
2577 | (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ? | |
2578 | 'X' : '.', | |
2579 | (lat_flags & TRACE_FLAG_NEED_RESCHED) ? | |
2580 | 'N' : '.', | |
2581 | (hardirq && softirq) ? 'H' : | |
2582 | hardirq ? 'h' : softirq ? 's' : '.'); | |
2583 | ||
2584 | if (pc) | |
2585 | printf("%x", pc); | |
2586 | else | |
2587 | printf("."); | |
2588 | ||
2589 | if (lock_depth < 0) | |
2590 | printf("."); | |
2591 | else | |
2592 | printf("%d", lock_depth); | |
2593 | } | |
2594 | ||
ea4010d1 SR |
2595 | /* taken from Linux, written by Frederic Weisbecker */ |
2596 | static void print_graph_cpu(int cpu) | |
2597 | { | |
2598 | int i; | |
2599 | int log10_this = log10_cpu(cpu); | |
2600 | int log10_all = log10_cpu(cpus); | |
2601 | ||
2602 | ||
2603 | /* | |
2604 | * Start with a space character - to make it stand out | |
2605 | * to the right a bit when trace output is pasted into | |
2606 | * email: | |
2607 | */ | |
2608 | printf(" "); | |
2609 | ||
2610 | /* | |
2611 | * Tricky - we space the CPU field according to the max | |
2612 | * number of online CPUs. On a 2-cpu system it would take | |
2613 | * a maximum of 1 digit - on a 128 cpu system it would | |
2614 | * take up to 3 digits: | |
2615 | */ | |
2616 | for (i = 0; i < log10_all - log10_this; i++) | |
2617 | printf(" "); | |
2618 | ||
2619 | printf("%d) ", cpu); | |
2620 | } | |
2621 | ||
2622 | #define TRACE_GRAPH_PROCINFO_LENGTH 14 | |
2623 | #define TRACE_GRAPH_INDENT 2 | |
2624 | ||
2625 | static void print_graph_proc(int pid, const char *comm) | |
2626 | { | |
2627 | /* sign + log10(MAX_INT) + '\0' */ | |
2628 | char pid_str[11]; | |
2629 | int spaces = 0; | |
2630 | int len; | |
2631 | int i; | |
2632 | ||
2633 | sprintf(pid_str, "%d", pid); | |
2634 | ||
2635 | /* 1 stands for the "-" character */ | |
2636 | len = strlen(comm) + strlen(pid_str) + 1; | |
2637 | ||
2638 | if (len < TRACE_GRAPH_PROCINFO_LENGTH) | |
2639 | spaces = TRACE_GRAPH_PROCINFO_LENGTH - len; | |
2640 | ||
2641 | /* First spaces to align center */ | |
2642 | for (i = 0; i < spaces / 2; i++) | |
2643 | printf(" "); | |
2644 | ||
2645 | printf("%s-%s", comm, pid_str); | |
2646 | ||
2647 | /* Last spaces to align center */ | |
2648 | for (i = 0; i < spaces - (spaces / 2); i++) | |
2649 | printf(" "); | |
2650 | } | |
2651 | ||
2652 | static struct record * | |
2653 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, | |
2654 | struct record *next) | |
2655 | { | |
2656 | struct format_field *field; | |
2657 | struct event *event; | |
2658 | unsigned long val; | |
2659 | int type; | |
2660 | int pid; | |
2661 | ||
ec156764 IM |
2662 | type = trace_parse_common_type(next->data); |
2663 | event = trace_find_event(type); | |
ea4010d1 SR |
2664 | if (!event) |
2665 | return NULL; | |
2666 | ||
2667 | if (!(event->flags & EVENT_FL_ISFUNCRET)) | |
2668 | return NULL; | |
2669 | ||
2670 | pid = parse_common_pid(next->data); | |
2671 | field = find_field(event, "func"); | |
2672 | if (!field) | |
2673 | die("function return does not have field func"); | |
2674 | ||
2675 | val = read_size(next->data + field->offset, field->size); | |
2676 | ||
2677 | if (cur_pid != pid || cur_func != val) | |
2678 | return NULL; | |
2679 | ||
2680 | /* this is a leaf, now advance the iterator */ | |
2681 | return trace_read_data(cpu); | |
2682 | } | |
2683 | ||
2684 | /* Signal a overhead of time execution to the output */ | |
2685 | static void print_graph_overhead(unsigned long long duration) | |
2686 | { | |
2687 | /* Non nested entry or return */ | |
2688 | if (duration == ~0ULL) | |
2689 | return (void)printf(" "); | |
2690 | ||
2691 | /* Duration exceeded 100 msecs */ | |
2692 | if (duration > 100000ULL) | |
2693 | return (void)printf("! "); | |
2694 | ||
2695 | /* Duration exceeded 10 msecs */ | |
2696 | if (duration > 10000ULL) | |
2697 | return (void)printf("+ "); | |
2698 | ||
2699 | printf(" "); | |
2700 | } | |
2701 | ||
2702 | static void print_graph_duration(unsigned long long duration) | |
2703 | { | |
2704 | unsigned long usecs = duration / 1000; | |
2705 | unsigned long nsecs_rem = duration % 1000; | |
2706 | /* log10(ULONG_MAX) + '\0' */ | |
2707 | char msecs_str[21]; | |
2708 | char nsecs_str[5]; | |
2709 | int len; | |
2710 | int i; | |
2711 | ||
2712 | sprintf(msecs_str, "%lu", usecs); | |
2713 | ||
2714 | /* Print msecs */ | |
2715 | len = printf("%lu", usecs); | |
2716 | ||
2717 | /* Print nsecs (we don't want to exceed 7 numbers) */ | |
2718 | if (len < 7) { | |
2719 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); | |
2720 | len += printf(".%s", nsecs_str); | |
2721 | } | |
2722 | ||
2723 | printf(" us "); | |
2724 | ||
2725 | /* Print remaining spaces to fit the row's width */ | |
2726 | for (i = len; i < 7; i++) | |
2727 | printf(" "); | |
2728 | ||
2729 | printf("| "); | |
2730 | } | |
2731 | ||
2732 | static void | |
2733 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) | |
2734 | { | |
2735 | unsigned long long rettime, calltime; | |
2736 | unsigned long long duration, depth; | |
2737 | unsigned long long val; | |
2738 | struct format_field *field; | |
2739 | struct func_map *func; | |
2740 | struct event *ret_event; | |
2741 | int type; | |
2742 | int i; | |
2743 | ||
ec156764 IM |
2744 | type = trace_parse_common_type(ret_rec->data); |
2745 | ret_event = trace_find_event(type); | |
ea4010d1 SR |
2746 | |
2747 | field = find_field(ret_event, "rettime"); | |
2748 | if (!field) | |
2749 | die("can't find rettime in return graph"); | |
2750 | rettime = read_size(ret_rec->data + field->offset, field->size); | |
2751 | ||
2752 | field = find_field(ret_event, "calltime"); | |
2753 | if (!field) | |
2754 | die("can't find rettime in return graph"); | |
2755 | calltime = read_size(ret_rec->data + field->offset, field->size); | |
2756 | ||
2757 | duration = rettime - calltime; | |
2758 | ||
2759 | /* Overhead */ | |
2760 | print_graph_overhead(duration); | |
2761 | ||
2762 | /* Duration */ | |
2763 | print_graph_duration(duration); | |
2764 | ||
2765 | field = find_field(event, "depth"); | |
2766 | if (!field) | |
2767 | die("can't find depth in entry graph"); | |
2768 | depth = read_size(data + field->offset, field->size); | |
2769 | ||
2770 | /* Function */ | |
2771 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2772 | printf(" "); | |
2773 | ||
2774 | field = find_field(event, "func"); | |
2775 | if (!field) | |
2776 | die("can't find func in entry graph"); | |
2777 | val = read_size(data + field->offset, field->size); | |
2778 | func = find_func(val); | |
2779 | ||
2780 | if (func) | |
2781 | printf("%s();", func->func); | |
2782 | else | |
2783 | printf("%llx();", val); | |
2784 | } | |
2785 | ||
2786 | static void print_graph_nested(struct event *event, void *data) | |
2787 | { | |
2788 | struct format_field *field; | |
2789 | unsigned long long depth; | |
2790 | unsigned long long val; | |
2791 | struct func_map *func; | |
2792 | int i; | |
2793 | ||
2794 | /* No overhead */ | |
2795 | print_graph_overhead(-1); | |
2796 | ||
2797 | /* No time */ | |
2798 | printf(" | "); | |
2799 | ||
2800 | field = find_field(event, "depth"); | |
2801 | if (!field) | |
2802 | die("can't find depth in entry graph"); | |
2803 | depth = read_size(data + field->offset, field->size); | |
2804 | ||
2805 | /* Function */ | |
2806 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2807 | printf(" "); | |
2808 | ||
2809 | field = find_field(event, "func"); | |
2810 | if (!field) | |
2811 | die("can't find func in entry graph"); | |
2812 | val = read_size(data + field->offset, field->size); | |
2813 | func = find_func(val); | |
2814 | ||
2815 | if (func) | |
2816 | printf("%s() {", func->func); | |
2817 | else | |
2818 | printf("%llx() {", val); | |
2819 | } | |
2820 | ||
2821 | static void | |
2822 | pretty_print_func_ent(void *data, int size, struct event *event, | |
2823 | int cpu, int pid, const char *comm, | |
2824 | unsigned long secs, unsigned long usecs) | |
2825 | { | |
2826 | struct format_field *field; | |
2827 | struct record *rec; | |
2828 | void *copy_data; | |
2829 | unsigned long val; | |
2830 | ||
2831 | printf("%5lu.%06lu | ", secs, usecs); | |
2832 | ||
2833 | print_graph_cpu(cpu); | |
2834 | print_graph_proc(pid, comm); | |
2835 | ||
2836 | printf(" | "); | |
2837 | ||
cda48461 SR |
2838 | if (latency_format) { |
2839 | print_lat_fmt(data, size); | |
2840 | printf(" | "); | |
2841 | } | |
2842 | ||
ea4010d1 SR |
2843 | field = find_field(event, "func"); |
2844 | if (!field) | |
2845 | die("function entry does not have func field"); | |
2846 | ||
2847 | val = read_size(data + field->offset, field->size); | |
2848 | ||
2849 | /* | |
2850 | * peek_data may unmap the data pointer. Copy it first. | |
2851 | */ | |
2852 | copy_data = malloc_or_die(size); | |
2853 | memcpy(copy_data, data, size); | |
2854 | data = copy_data; | |
2855 | ||
2856 | rec = trace_peek_data(cpu); | |
2857 | if (rec) { | |
2858 | rec = get_return_for_leaf(cpu, pid, val, rec); | |
2859 | if (rec) { | |
2860 | print_graph_entry_leaf(event, data, rec); | |
2861 | goto out_free; | |
2862 | } | |
2863 | } | |
2864 | print_graph_nested(event, data); | |
2865 | out_free: | |
2866 | free(data); | |
2867 | } | |
2868 | ||
2869 | static void | |
2870 | pretty_print_func_ret(void *data, int size __unused, struct event *event, | |
2871 | int cpu, int pid, const char *comm, | |
2872 | unsigned long secs, unsigned long usecs) | |
2873 | { | |
2874 | unsigned long long rettime, calltime; | |
2875 | unsigned long long duration, depth; | |
2876 | struct format_field *field; | |
2877 | int i; | |
2878 | ||
2879 | printf("%5lu.%06lu | ", secs, usecs); | |
2880 | ||
2881 | print_graph_cpu(cpu); | |
2882 | print_graph_proc(pid, comm); | |
2883 | ||
2884 | printf(" | "); | |
2885 | ||
cda48461 SR |
2886 | if (latency_format) { |
2887 | print_lat_fmt(data, size); | |
2888 | printf(" | "); | |
2889 | } | |
2890 | ||
ea4010d1 SR |
2891 | field = find_field(event, "rettime"); |
2892 | if (!field) | |
2893 | die("can't find rettime in return graph"); | |
2894 | rettime = read_size(data + field->offset, field->size); | |
2895 | ||
2896 | field = find_field(event, "calltime"); | |
2897 | if (!field) | |
2898 | die("can't find calltime in return graph"); | |
2899 | calltime = read_size(data + field->offset, field->size); | |
2900 | ||
2901 | duration = rettime - calltime; | |
2902 | ||
2903 | /* Overhead */ | |
2904 | print_graph_overhead(duration); | |
2905 | ||
2906 | /* Duration */ | |
2907 | print_graph_duration(duration); | |
2908 | ||
2909 | field = find_field(event, "depth"); | |
2910 | if (!field) | |
2911 | die("can't find depth in entry graph"); | |
2912 | depth = read_size(data + field->offset, field->size); | |
2913 | ||
2914 | /* Function */ | |
2915 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2916 | printf(" "); | |
2917 | ||
2918 | printf("}"); | |
2919 | } | |
2920 | ||
2921 | static void | |
2922 | pretty_print_func_graph(void *data, int size, struct event *event, | |
2923 | int cpu, int pid, const char *comm, | |
2924 | unsigned long secs, unsigned long usecs) | |
2925 | { | |
2926 | if (event->flags & EVENT_FL_ISFUNCENT) | |
2927 | pretty_print_func_ent(data, size, event, | |
2928 | cpu, pid, comm, secs, usecs); | |
2929 | else if (event->flags & EVENT_FL_ISFUNCRET) | |
2930 | pretty_print_func_ret(data, size, event, | |
2931 | cpu, pid, comm, secs, usecs); | |
2932 | printf("\n"); | |
2933 | } | |
2934 | ||
2935 | void print_event(int cpu, void *data, int size, unsigned long long nsecs, | |
2936 | char *comm) | |
2937 | { | |
2938 | struct event *event; | |
2939 | unsigned long secs; | |
2940 | unsigned long usecs; | |
2941 | int type; | |
2942 | int pid; | |
2943 | ||
2944 | secs = nsecs / NSECS_PER_SEC; | |
2945 | nsecs -= secs * NSECS_PER_SEC; | |
2946 | usecs = nsecs / NSECS_PER_USEC; | |
2947 | ||
ec156764 | 2948 | type = trace_parse_common_type(data); |
ea4010d1 | 2949 | |
ec156764 | 2950 | event = trace_find_event(type); |
ea57c4f5 | 2951 | if (!event) { |
07a4bddd | 2952 | warning("ug! no event found for type %d", type); |
ea57c4f5 IM |
2953 | return; |
2954 | } | |
ea4010d1 SR |
2955 | |
2956 | pid = parse_common_pid(data); | |
2957 | ||
2958 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) | |
2959 | return pretty_print_func_graph(data, size, event, cpu, | |
2960 | pid, comm, secs, usecs); | |
2961 | ||
cda48461 SR |
2962 | if (latency_format) { |
2963 | printf("%8.8s-%-5d %3d", | |
2964 | comm, pid, cpu); | |
2965 | print_lat_fmt(data, size); | |
2966 | } else | |
2967 | printf("%16s-%-5d [%03d]", comm, pid, cpu); | |
2968 | ||
2969 | printf(" %5lu.%06lu: %s: ", secs, usecs, event->name); | |
ea4010d1 | 2970 | |
07a4bddd SR |
2971 | if (event->flags & EVENT_FL_FAILED) { |
2972 | printf("EVENT '%s' FAILED TO PARSE\n", | |
2973 | event->name); | |
2974 | return; | |
2975 | } | |
2976 | ||
ea4010d1 SR |
2977 | pretty_print(data, size, event); |
2978 | printf("\n"); | |
2979 | } | |
2980 | ||
2981 | static void print_fields(struct print_flag_sym *field) | |
2982 | { | |
2983 | printf("{ %s, %s }", field->value, field->str); | |
2984 | if (field->next) { | |
2985 | printf(", "); | |
2986 | print_fields(field->next); | |
2987 | } | |
2988 | } | |
2989 | ||
2990 | static void print_args(struct print_arg *args) | |
2991 | { | |
2992 | int print_paren = 1; | |
2993 | ||
2994 | switch (args->type) { | |
2995 | case PRINT_NULL: | |
2996 | printf("null"); | |
2997 | break; | |
2998 | case PRINT_ATOM: | |
2999 | printf("%s", args->atom.atom); | |
3000 | break; | |
3001 | case PRINT_FIELD: | |
3002 | printf("REC->%s", args->field.name); | |
3003 | break; | |
3004 | case PRINT_FLAGS: | |
3005 | printf("__print_flags("); | |
3006 | print_args(args->flags.field); | |
3007 | printf(", %s, ", args->flags.delim); | |
3008 | print_fields(args->flags.flags); | |
3009 | printf(")"); | |
3010 | break; | |
3011 | case PRINT_SYMBOL: | |
3012 | printf("__print_symbolic("); | |
3013 | print_args(args->symbol.field); | |
3014 | printf(", "); | |
3015 | print_fields(args->symbol.symbols); | |
3016 | printf(")"); | |
3017 | break; | |
3018 | case PRINT_STRING: | |
3019 | printf("__get_str(%s)", args->string.string); | |
3020 | break; | |
3021 | case PRINT_TYPE: | |
3022 | printf("(%s)", args->typecast.type); | |
3023 | print_args(args->typecast.item); | |
3024 | break; | |
3025 | case PRINT_OP: | |
3026 | if (strcmp(args->op.op, ":") == 0) | |
3027 | print_paren = 0; | |
3028 | if (print_paren) | |
3029 | printf("("); | |
3030 | print_args(args->op.left); | |
3031 | printf(" %s ", args->op.op); | |
3032 | print_args(args->op.right); | |
3033 | if (print_paren) | |
3034 | printf(")"); | |
3035 | break; | |
3036 | default: | |
3037 | /* we should warn... */ | |
3038 | return; | |
3039 | } | |
3040 | if (args->next) { | |
3041 | printf("\n"); | |
3042 | print_args(args->next); | |
3043 | } | |
3044 | } | |
3045 | ||
13999e59 | 3046 | static void parse_header_field(char *field, |
ea4010d1 SR |
3047 | int *offset, int *size) |
3048 | { | |
3049 | char *token; | |
13999e59 | 3050 | int type; |
ea4010d1 SR |
3051 | |
3052 | if (read_expected(EVENT_ITEM, (char *)"field") < 0) | |
3053 | return; | |
3054 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
3055 | return; | |
13999e59 | 3056 | |
ea4010d1 SR |
3057 | /* type */ |
3058 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 3059 | goto fail; |
ea4010d1 SR |
3060 | free_token(token); |
3061 | ||
13999e59 | 3062 | if (read_expected(EVENT_ITEM, field) < 0) |
ea4010d1 SR |
3063 | return; |
3064 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
3065 | return; | |
3066 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
3067 | return; | |
3068 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
3069 | return; | |
3070 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 3071 | goto fail; |
ea4010d1 SR |
3072 | *offset = atoi(token); |
3073 | free_token(token); | |
3074 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
3075 | return; | |
3076 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
3077 | return; | |
3078 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
3079 | return; | |
3080 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 3081 | goto fail; |
ea4010d1 SR |
3082 | *size = atoi(token); |
3083 | free_token(token); | |
26a50744 TZ |
3084 | if (read_expected(EVENT_OP, (char *)";") < 0) |
3085 | return; | |
13999e59 SR |
3086 | type = read_token(&token); |
3087 | if (type != EVENT_NEWLINE) { | |
3088 | /* newer versions of the kernel have a "signed" type */ | |
3089 | if (type != EVENT_ITEM) | |
3090 | goto fail; | |
3091 | ||
3092 | if (strcmp(token, (char *)"signed") != 0) | |
3093 | goto fail; | |
3094 | ||
3095 | free_token(token); | |
3096 | ||
3097 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
3098 | return; | |
3099 | ||
3100 | if (read_expect_type(EVENT_ITEM, &token)) | |
3101 | goto fail; | |
3102 | ||
3103 | free_token(token); | |
3104 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
3105 | return; | |
3106 | ||
3107 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
3108 | goto fail; | |
3109 | } | |
3110 | fail: | |
ea4010d1 SR |
3111 | free_token(token); |
3112 | } | |
3113 | ||
3114 | int parse_header_page(char *buf, unsigned long size) | |
3115 | { | |
3116 | init_input_buf(buf, size); | |
3117 | ||
3118 | parse_header_field((char *)"timestamp", &header_page_ts_offset, | |
3119 | &header_page_ts_size); | |
3120 | parse_header_field((char *)"commit", &header_page_size_offset, | |
3121 | &header_page_size_size); | |
3122 | parse_header_field((char *)"data", &header_page_data_offset, | |
3123 | &header_page_data_size); | |
3124 | ||
3125 | return 0; | |
3126 | } | |
3127 | ||
3128 | int parse_ftrace_file(char *buf, unsigned long size) | |
3129 | { | |
3130 | struct format_field *field; | |
3131 | struct print_arg *arg, **list; | |
3132 | struct event *event; | |
3133 | int ret; | |
3134 | ||
3135 | init_input_buf(buf, size); | |
3136 | ||
3137 | event = alloc_event(); | |
3138 | if (!event) | |
3139 | return -ENOMEM; | |
3140 | ||
3141 | event->flags |= EVENT_FL_ISFTRACE; | |
3142 | ||
3143 | event->name = event_read_name(); | |
3144 | if (!event->name) | |
3145 | die("failed to read ftrace event name"); | |
3146 | ||
3147 | if (strcmp(event->name, "function") == 0) | |
3148 | event->flags |= EVENT_FL_ISFUNC; | |
3149 | ||
3150 | else if (strcmp(event->name, "funcgraph_entry") == 0) | |
3151 | event->flags |= EVENT_FL_ISFUNCENT; | |
3152 | ||
3153 | else if (strcmp(event->name, "funcgraph_exit") == 0) | |
3154 | event->flags |= EVENT_FL_ISFUNCRET; | |
3155 | ||
3156 | else if (strcmp(event->name, "bprint") == 0) | |
3157 | event->flags |= EVENT_FL_ISBPRINT; | |
3158 | ||
3159 | event->id = event_read_id(); | |
3160 | if (event->id < 0) | |
3161 | die("failed to read ftrace event id"); | |
3162 | ||
3163 | add_event(event); | |
3164 | ||
3165 | ret = event_read_format(event); | |
3166 | if (ret < 0) | |
3167 | die("failed to read ftrace event format"); | |
3168 | ||
3169 | ret = event_read_print(event); | |
3170 | if (ret < 0) | |
3171 | die("failed to read ftrace event print fmt"); | |
3172 | ||
0d1da915 SR |
3173 | /* New ftrace handles args */ |
3174 | if (ret > 0) | |
3175 | return 0; | |
ea4010d1 SR |
3176 | /* |
3177 | * The arguments for ftrace files are parsed by the fields. | |
3178 | * Set up the fields as their arguments. | |
3179 | */ | |
3180 | list = &event->print_fmt.args; | |
3181 | for (field = event->format.fields; field; field = field->next) { | |
3182 | arg = malloc_or_die(sizeof(*arg)); | |
3183 | memset(arg, 0, sizeof(*arg)); | |
3184 | *list = arg; | |
3185 | list = &arg->next; | |
3186 | arg->type = PRINT_FIELD; | |
3187 | arg->field.name = field->name; | |
3188 | arg->field.field = field; | |
3189 | } | |
3190 | return 0; | |
3191 | } | |
3192 | ||
27746018 | 3193 | int parse_event_file(char *buf, unsigned long size, char *sys) |
ea4010d1 SR |
3194 | { |
3195 | struct event *event; | |
3196 | int ret; | |
3197 | ||
3198 | init_input_buf(buf, size); | |
3199 | ||
3200 | event = alloc_event(); | |
3201 | if (!event) | |
3202 | return -ENOMEM; | |
3203 | ||
3204 | event->name = event_read_name(); | |
3205 | if (!event->name) | |
3206 | die("failed to read event name"); | |
3207 | ||
3208 | event->id = event_read_id(); | |
3209 | if (event->id < 0) | |
3210 | die("failed to read event id"); | |
3211 | ||
3212 | ret = event_read_format(event); | |
07a4bddd SR |
3213 | if (ret < 0) { |
3214 | warning("failed to read event format for %s", event->name); | |
3215 | goto event_failed; | |
3216 | } | |
ea4010d1 SR |
3217 | |
3218 | ret = event_read_print(event); | |
07a4bddd SR |
3219 | if (ret < 0) { |
3220 | warning("failed to read event print fmt for %s", event->name); | |
3221 | goto event_failed; | |
3222 | } | |
ea4010d1 | 3223 | |
27746018 TZ |
3224 | event->system = strdup(sys); |
3225 | ||
ea4010d1 SR |
3226 | #define PRINT_ARGS 0 |
3227 | if (PRINT_ARGS && event->print_fmt.args) | |
3228 | print_args(event->print_fmt.args); | |
3229 | ||
3230 | add_event(event); | |
3231 | return 0; | |
07a4bddd SR |
3232 | |
3233 | event_failed: | |
3234 | event->flags |= EVENT_FL_FAILED; | |
3235 | /* still add it even if it failed */ | |
3236 | add_event(event); | |
3237 | return -1; | |
ea4010d1 SR |
3238 | } |
3239 | ||
3240 | void parse_set_info(int nr_cpus, int long_sz) | |
3241 | { | |
3242 | cpus = nr_cpus; | |
3243 | long_size = long_sz; | |
3244 | } |