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ea4010d1 SR |
1 | /* |
2 | * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; version 2 of the License (not later!) | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | * | |
19 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
20 | * | |
21 | * The parts for function graph printing was taken and modified from the | |
22 | * Linux Kernel that were written by Frederic Weisbecker. | |
23 | */ | |
24 | #define _GNU_SOURCE | |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <ctype.h> | |
29 | #include <errno.h> | |
30 | ||
31 | #undef _GNU_SOURCE | |
1ef2ed10 | 32 | #include "../perf.h" |
ea4010d1 SR |
33 | #include "util.h" |
34 | #include "trace-event.h" | |
35 | ||
36 | int header_page_ts_offset; | |
37 | int header_page_ts_size; | |
38 | int header_page_size_offset; | |
39 | int header_page_size_size; | |
40 | int header_page_data_offset; | |
41 | int header_page_data_size; | |
42 | ||
43 | static char *input_buf; | |
44 | static unsigned long long input_buf_ptr; | |
45 | static unsigned long long input_buf_siz; | |
46 | ||
47 | static int cpus; | |
48 | static int long_size; | |
49 | ||
50 | static void init_input_buf(char *buf, unsigned long long size) | |
51 | { | |
52 | input_buf = buf; | |
53 | input_buf_siz = size; | |
54 | input_buf_ptr = 0; | |
55 | } | |
56 | ||
57 | struct cmdline { | |
58 | char *comm; | |
59 | int pid; | |
60 | }; | |
61 | ||
62 | static struct cmdline *cmdlines; | |
63 | static int cmdline_count; | |
64 | ||
65 | static int cmdline_cmp(const void *a, const void *b) | |
66 | { | |
67 | const struct cmdline *ca = a; | |
68 | const struct cmdline *cb = b; | |
69 | ||
70 | if (ca->pid < cb->pid) | |
71 | return -1; | |
72 | if (ca->pid > cb->pid) | |
73 | return 1; | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | void parse_cmdlines(char *file, int size __unused) | |
79 | { | |
80 | struct cmdline_list { | |
81 | struct cmdline_list *next; | |
82 | char *comm; | |
83 | int pid; | |
84 | } *list = NULL, *item; | |
85 | char *line; | |
86 | char *next = NULL; | |
87 | int i; | |
88 | ||
89 | line = strtok_r(file, "\n", &next); | |
90 | while (line) { | |
91 | item = malloc_or_die(sizeof(*item)); | |
92 | sscanf(line, "%d %as", &item->pid, | |
65014ab3 | 93 | (float *)(void *)&item->comm); /* workaround gcc warning */ |
ea4010d1 SR |
94 | item->next = list; |
95 | list = item; | |
96 | line = strtok_r(NULL, "\n", &next); | |
97 | cmdline_count++; | |
98 | } | |
99 | ||
100 | cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); | |
101 | ||
102 | i = 0; | |
103 | while (list) { | |
104 | cmdlines[i].pid = list->pid; | |
105 | cmdlines[i].comm = list->comm; | |
106 | i++; | |
107 | item = list; | |
108 | list = list->next; | |
109 | free(item); | |
110 | } | |
111 | ||
112 | qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); | |
113 | } | |
114 | ||
115 | static struct func_map { | |
116 | unsigned long long addr; | |
117 | char *func; | |
118 | char *mod; | |
119 | } *func_list; | |
120 | static unsigned int func_count; | |
121 | ||
122 | static int func_cmp(const void *a, const void *b) | |
123 | { | |
124 | const struct func_map *fa = a; | |
125 | const struct func_map *fb = b; | |
126 | ||
127 | if (fa->addr < fb->addr) | |
128 | return -1; | |
129 | if (fa->addr > fb->addr) | |
130 | return 1; | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | void parse_proc_kallsyms(char *file, unsigned int size __unused) | |
136 | { | |
137 | struct func_list { | |
138 | struct func_list *next; | |
139 | unsigned long long addr; | |
140 | char *func; | |
141 | char *mod; | |
142 | } *list = NULL, *item; | |
143 | char *line; | |
144 | char *next = NULL; | |
145 | char *addr_str; | |
146 | char ch; | |
147 | int ret; | |
148 | int i; | |
149 | ||
150 | line = strtok_r(file, "\n", &next); | |
151 | while (line) { | |
152 | item = malloc_or_die(sizeof(*item)); | |
153 | item->mod = NULL; | |
154 | ret = sscanf(line, "%as %c %as\t[%as", | |
65014ab3 | 155 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
ea4010d1 | 156 | &ch, |
65014ab3 IM |
157 | (float *)(void *)&item->func, |
158 | (float *)(void *)&item->mod); | |
ea4010d1 SR |
159 | item->addr = strtoull(addr_str, NULL, 16); |
160 | free(addr_str); | |
161 | ||
162 | /* truncate the extra ']' */ | |
163 | if (item->mod) | |
164 | item->mod[strlen(item->mod) - 1] = 0; | |
165 | ||
166 | ||
167 | item->next = list; | |
168 | list = item; | |
169 | line = strtok_r(NULL, "\n", &next); | |
170 | func_count++; | |
171 | } | |
172 | ||
173 | func_list = malloc_or_die(sizeof(*func_list) * func_count + 1); | |
174 | ||
175 | i = 0; | |
176 | while (list) { | |
177 | func_list[i].func = list->func; | |
178 | func_list[i].addr = list->addr; | |
179 | func_list[i].mod = list->mod; | |
180 | i++; | |
181 | item = list; | |
182 | list = list->next; | |
183 | free(item); | |
184 | } | |
185 | ||
186 | qsort(func_list, func_count, sizeof(*func_list), func_cmp); | |
187 | ||
188 | /* | |
189 | * Add a special record at the end. | |
190 | */ | |
191 | func_list[func_count].func = NULL; | |
192 | func_list[func_count].addr = 0; | |
193 | func_list[func_count].mod = NULL; | |
194 | } | |
195 | ||
196 | /* | |
197 | * We are searching for a record in between, not an exact | |
198 | * match. | |
199 | */ | |
200 | static int func_bcmp(const void *a, const void *b) | |
201 | { | |
202 | const struct func_map *fa = a; | |
203 | const struct func_map *fb = b; | |
204 | ||
205 | if ((fa->addr == fb->addr) || | |
206 | ||
207 | (fa->addr > fb->addr && | |
208 | fa->addr < (fb+1)->addr)) | |
209 | return 0; | |
210 | ||
211 | if (fa->addr < fb->addr) | |
212 | return -1; | |
213 | ||
214 | return 1; | |
215 | } | |
216 | ||
217 | static struct func_map *find_func(unsigned long long addr) | |
218 | { | |
219 | struct func_map *func; | |
220 | struct func_map key; | |
221 | ||
222 | key.addr = addr; | |
223 | ||
224 | func = bsearch(&key, func_list, func_count, sizeof(*func_list), | |
225 | func_bcmp); | |
226 | ||
227 | return func; | |
228 | } | |
229 | ||
230 | void print_funcs(void) | |
231 | { | |
232 | int i; | |
233 | ||
234 | for (i = 0; i < (int)func_count; i++) { | |
235 | printf("%016llx %s", | |
236 | func_list[i].addr, | |
237 | func_list[i].func); | |
238 | if (func_list[i].mod) | |
239 | printf(" [%s]\n", func_list[i].mod); | |
240 | else | |
241 | printf("\n"); | |
242 | } | |
243 | } | |
244 | ||
245 | static struct printk_map { | |
246 | unsigned long long addr; | |
247 | char *printk; | |
248 | } *printk_list; | |
249 | static unsigned int printk_count; | |
250 | ||
251 | static int printk_cmp(const void *a, const void *b) | |
252 | { | |
253 | const struct func_map *fa = a; | |
254 | const struct func_map *fb = b; | |
255 | ||
256 | if (fa->addr < fb->addr) | |
257 | return -1; | |
258 | if (fa->addr > fb->addr) | |
259 | return 1; | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static struct printk_map *find_printk(unsigned long long addr) | |
265 | { | |
266 | struct printk_map *printk; | |
267 | struct printk_map key; | |
268 | ||
269 | key.addr = addr; | |
270 | ||
271 | printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), | |
272 | printk_cmp); | |
273 | ||
274 | return printk; | |
275 | } | |
276 | ||
277 | void parse_ftrace_printk(char *file, unsigned int size __unused) | |
278 | { | |
279 | struct printk_list { | |
280 | struct printk_list *next; | |
281 | unsigned long long addr; | |
282 | char *printk; | |
283 | } *list = NULL, *item; | |
284 | char *line; | |
285 | char *next = NULL; | |
286 | char *addr_str; | |
ffa18955 | 287 | char *fmt; |
ea4010d1 SR |
288 | int i; |
289 | ||
290 | line = strtok_r(file, "\n", &next); | |
291 | while (line) { | |
292 | item = malloc_or_die(sizeof(*item)); | |
ffa18955 | 293 | addr_str = strtok_r(line, ":", &fmt); |
ea4010d1 | 294 | item->addr = strtoull(addr_str, NULL, 16); |
ffa18955 SR |
295 | /* fmt still has a space, skip it */ |
296 | item->printk = strdup(fmt+1); | |
ea4010d1 SR |
297 | item->next = list; |
298 | list = item; | |
299 | line = strtok_r(NULL, "\n", &next); | |
300 | printk_count++; | |
301 | } | |
302 | ||
303 | printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); | |
304 | ||
305 | i = 0; | |
306 | while (list) { | |
307 | printk_list[i].printk = list->printk; | |
308 | printk_list[i].addr = list->addr; | |
309 | i++; | |
310 | item = list; | |
311 | list = list->next; | |
312 | free(item); | |
313 | } | |
314 | ||
315 | qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); | |
316 | } | |
317 | ||
318 | void print_printk(void) | |
319 | { | |
320 | int i; | |
321 | ||
322 | for (i = 0; i < (int)printk_count; i++) { | |
323 | printf("%016llx %s\n", | |
324 | printk_list[i].addr, | |
325 | printk_list[i].printk); | |
326 | } | |
327 | } | |
328 | ||
329 | static struct event *alloc_event(void) | |
330 | { | |
331 | struct event *event; | |
332 | ||
333 | event = malloc_or_die(sizeof(*event)); | |
334 | memset(event, 0, sizeof(*event)); | |
335 | ||
336 | return event; | |
337 | } | |
338 | ||
339 | enum event_type { | |
340 | EVENT_ERROR, | |
341 | EVENT_NONE, | |
342 | EVENT_SPACE, | |
343 | EVENT_NEWLINE, | |
344 | EVENT_OP, | |
345 | EVENT_DELIM, | |
346 | EVENT_ITEM, | |
347 | EVENT_DQUOTE, | |
348 | EVENT_SQUOTE, | |
349 | }; | |
350 | ||
351 | static struct event *event_list; | |
352 | ||
353 | static void add_event(struct event *event) | |
354 | { | |
355 | event->next = event_list; | |
356 | event_list = event; | |
357 | } | |
358 | ||
359 | static int event_item_type(enum event_type type) | |
360 | { | |
361 | switch (type) { | |
362 | case EVENT_ITEM ... EVENT_SQUOTE: | |
363 | return 1; | |
364 | case EVENT_ERROR ... EVENT_DELIM: | |
365 | default: | |
366 | return 0; | |
367 | } | |
368 | } | |
369 | ||
370 | static void free_arg(struct print_arg *arg) | |
371 | { | |
372 | if (!arg) | |
373 | return; | |
374 | ||
375 | switch (arg->type) { | |
376 | case PRINT_ATOM: | |
377 | if (arg->atom.atom) | |
378 | free(arg->atom.atom); | |
379 | break; | |
380 | case PRINT_NULL: | |
381 | case PRINT_FIELD ... PRINT_OP: | |
382 | default: | |
383 | /* todo */ | |
384 | break; | |
385 | } | |
386 | ||
387 | free(arg); | |
388 | } | |
389 | ||
390 | static enum event_type get_type(int ch) | |
391 | { | |
392 | if (ch == '\n') | |
393 | return EVENT_NEWLINE; | |
394 | if (isspace(ch)) | |
395 | return EVENT_SPACE; | |
396 | if (isalnum(ch) || ch == '_') | |
397 | return EVENT_ITEM; | |
398 | if (ch == '\'') | |
399 | return EVENT_SQUOTE; | |
400 | if (ch == '"') | |
401 | return EVENT_DQUOTE; | |
402 | if (!isprint(ch)) | |
403 | return EVENT_NONE; | |
404 | if (ch == '(' || ch == ')' || ch == ',') | |
405 | return EVENT_DELIM; | |
406 | ||
407 | return EVENT_OP; | |
408 | } | |
409 | ||
410 | static int __read_char(void) | |
411 | { | |
412 | if (input_buf_ptr >= input_buf_siz) | |
413 | return -1; | |
414 | ||
415 | return input_buf[input_buf_ptr++]; | |
416 | } | |
417 | ||
418 | static int __peek_char(void) | |
419 | { | |
420 | if (input_buf_ptr >= input_buf_siz) | |
421 | return -1; | |
422 | ||
423 | return input_buf[input_buf_ptr]; | |
424 | } | |
425 | ||
426 | static enum event_type __read_token(char **tok) | |
427 | { | |
428 | char buf[BUFSIZ]; | |
429 | int ch, last_ch, quote_ch, next_ch; | |
430 | int i = 0; | |
431 | int tok_size = 0; | |
432 | enum event_type type; | |
433 | ||
434 | *tok = NULL; | |
435 | ||
436 | ||
437 | ch = __read_char(); | |
438 | if (ch < 0) | |
439 | return EVENT_NONE; | |
440 | ||
441 | type = get_type(ch); | |
442 | if (type == EVENT_NONE) | |
443 | return type; | |
444 | ||
445 | buf[i++] = ch; | |
446 | ||
447 | switch (type) { | |
448 | case EVENT_NEWLINE: | |
449 | case EVENT_DELIM: | |
450 | *tok = malloc_or_die(2); | |
451 | (*tok)[0] = ch; | |
452 | (*tok)[1] = 0; | |
453 | return type; | |
454 | ||
455 | case EVENT_OP: | |
456 | switch (ch) { | |
457 | case '-': | |
458 | next_ch = __peek_char(); | |
459 | if (next_ch == '>') { | |
460 | buf[i++] = __read_char(); | |
461 | break; | |
462 | } | |
463 | /* fall through */ | |
464 | case '+': | |
465 | case '|': | |
466 | case '&': | |
467 | case '>': | |
468 | case '<': | |
469 | last_ch = ch; | |
470 | ch = __peek_char(); | |
471 | if (ch != last_ch) | |
472 | goto test_equal; | |
473 | buf[i++] = __read_char(); | |
474 | switch (last_ch) { | |
475 | case '>': | |
476 | case '<': | |
477 | goto test_equal; | |
478 | default: | |
479 | break; | |
480 | } | |
481 | break; | |
482 | case '!': | |
483 | case '=': | |
484 | goto test_equal; | |
485 | default: /* what should we do instead? */ | |
486 | break; | |
487 | } | |
488 | buf[i] = 0; | |
489 | *tok = strdup(buf); | |
490 | return type; | |
491 | ||
492 | test_equal: | |
493 | ch = __peek_char(); | |
494 | if (ch == '=') | |
495 | buf[i++] = __read_char(); | |
496 | break; | |
497 | ||
498 | case EVENT_DQUOTE: | |
499 | case EVENT_SQUOTE: | |
500 | /* don't keep quotes */ | |
501 | i--; | |
502 | quote_ch = ch; | |
503 | last_ch = 0; | |
504 | do { | |
505 | if (i == (BUFSIZ - 1)) { | |
506 | buf[i] = 0; | |
507 | if (*tok) { | |
508 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
509 | if (!*tok) | |
510 | return EVENT_NONE; | |
511 | strcat(*tok, buf); | |
512 | } else | |
513 | *tok = strdup(buf); | |
514 | ||
515 | if (!*tok) | |
516 | return EVENT_NONE; | |
517 | tok_size += BUFSIZ; | |
518 | i = 0; | |
519 | } | |
520 | last_ch = ch; | |
521 | ch = __read_char(); | |
522 | buf[i++] = ch; | |
91ff2bc1 SR |
523 | /* the '\' '\' will cancel itself */ |
524 | if (ch == '\\' && last_ch == '\\') | |
525 | last_ch = 0; | |
526 | } while (ch != quote_ch || last_ch == '\\'); | |
ea4010d1 SR |
527 | /* remove the last quote */ |
528 | i--; | |
529 | goto out; | |
530 | ||
531 | case EVENT_ERROR ... EVENT_SPACE: | |
532 | case EVENT_ITEM: | |
533 | default: | |
534 | break; | |
535 | } | |
536 | ||
537 | while (get_type(__peek_char()) == type) { | |
538 | if (i == (BUFSIZ - 1)) { | |
539 | buf[i] = 0; | |
540 | if (*tok) { | |
541 | *tok = realloc(*tok, tok_size + BUFSIZ); | |
542 | if (!*tok) | |
543 | return EVENT_NONE; | |
544 | strcat(*tok, buf); | |
545 | } else | |
546 | *tok = strdup(buf); | |
547 | ||
548 | if (!*tok) | |
549 | return EVENT_NONE; | |
550 | tok_size += BUFSIZ; | |
551 | i = 0; | |
552 | } | |
553 | ch = __read_char(); | |
554 | buf[i++] = ch; | |
555 | } | |
556 | ||
557 | out: | |
558 | buf[i] = 0; | |
559 | if (*tok) { | |
560 | *tok = realloc(*tok, tok_size + i); | |
561 | if (!*tok) | |
562 | return EVENT_NONE; | |
563 | strcat(*tok, buf); | |
564 | } else | |
565 | *tok = strdup(buf); | |
566 | if (!*tok) | |
567 | return EVENT_NONE; | |
568 | ||
569 | return type; | |
570 | } | |
571 | ||
572 | static void free_token(char *tok) | |
573 | { | |
574 | if (tok) | |
575 | free(tok); | |
576 | } | |
577 | ||
578 | static enum event_type read_token(char **tok) | |
579 | { | |
580 | enum event_type type; | |
581 | ||
582 | for (;;) { | |
583 | type = __read_token(tok); | |
584 | if (type != EVENT_SPACE) | |
585 | return type; | |
586 | ||
587 | free_token(*tok); | |
588 | } | |
589 | ||
590 | /* not reached */ | |
591 | return EVENT_NONE; | |
592 | } | |
593 | ||
594 | /* no newline */ | |
595 | static enum event_type read_token_item(char **tok) | |
596 | { | |
597 | enum event_type type; | |
598 | ||
599 | for (;;) { | |
600 | type = __read_token(tok); | |
601 | if (type != EVENT_SPACE && type != EVENT_NEWLINE) | |
602 | return type; | |
603 | ||
604 | free_token(*tok); | |
605 | } | |
606 | ||
607 | /* not reached */ | |
608 | return EVENT_NONE; | |
609 | } | |
610 | ||
611 | static int test_type(enum event_type type, enum event_type expect) | |
612 | { | |
613 | if (type != expect) { | |
07a4bddd | 614 | warning("Error: expected type %d but read %d", |
ea4010d1 SR |
615 | expect, type); |
616 | return -1; | |
617 | } | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static int test_type_token(enum event_type type, char *token, | |
cbef79a8 | 622 | enum event_type expect, const char *expect_tok) |
ea4010d1 SR |
623 | { |
624 | if (type != expect) { | |
07a4bddd | 625 | warning("Error: expected type %d but read %d", |
ea4010d1 SR |
626 | expect, type); |
627 | return -1; | |
628 | } | |
629 | ||
630 | if (strcmp(token, expect_tok) != 0) { | |
07a4bddd | 631 | warning("Error: expected '%s' but read '%s'", |
ea4010d1 SR |
632 | expect_tok, token); |
633 | return -1; | |
634 | } | |
635 | return 0; | |
636 | } | |
637 | ||
638 | static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) | |
639 | { | |
640 | enum event_type type; | |
641 | ||
642 | if (newline_ok) | |
643 | type = read_token(tok); | |
644 | else | |
645 | type = read_token_item(tok); | |
646 | return test_type(type, expect); | |
647 | } | |
648 | ||
649 | static int read_expect_type(enum event_type expect, char **tok) | |
650 | { | |
651 | return __read_expect_type(expect, tok, 1); | |
652 | } | |
653 | ||
cbef79a8 | 654 | static int __read_expected(enum event_type expect, const char *str, int newline_ok) |
ea4010d1 SR |
655 | { |
656 | enum event_type type; | |
657 | char *token; | |
658 | int ret; | |
659 | ||
660 | if (newline_ok) | |
661 | type = read_token(&token); | |
662 | else | |
663 | type = read_token_item(&token); | |
664 | ||
665 | ret = test_type_token(type, token, expect, str); | |
666 | ||
667 | free_token(token); | |
668 | ||
07a4bddd | 669 | return ret; |
ea4010d1 SR |
670 | } |
671 | ||
cbef79a8 | 672 | static int read_expected(enum event_type expect, const char *str) |
ea4010d1 SR |
673 | { |
674 | return __read_expected(expect, str, 1); | |
675 | } | |
676 | ||
cbef79a8 | 677 | static int read_expected_item(enum event_type expect, const char *str) |
ea4010d1 SR |
678 | { |
679 | return __read_expected(expect, str, 0); | |
680 | } | |
681 | ||
682 | static char *event_read_name(void) | |
683 | { | |
684 | char *token; | |
685 | ||
686 | if (read_expected(EVENT_ITEM, (char *)"name") < 0) | |
687 | return NULL; | |
688 | ||
689 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
690 | return NULL; | |
691 | ||
692 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
693 | goto fail; | |
694 | ||
695 | return token; | |
696 | ||
697 | fail: | |
698 | free_token(token); | |
699 | return NULL; | |
700 | } | |
701 | ||
702 | static int event_read_id(void) | |
703 | { | |
704 | char *token; | |
705 | int id; | |
706 | ||
707 | if (read_expected_item(EVENT_ITEM, (char *)"ID") < 0) | |
708 | return -1; | |
709 | ||
710 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
711 | return -1; | |
712 | ||
713 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
714 | goto fail; | |
715 | ||
716 | id = strtoul(token, NULL, 0); | |
717 | free_token(token); | |
718 | return id; | |
719 | ||
720 | fail: | |
721 | free_token(token); | |
722 | return -1; | |
723 | } | |
724 | ||
064739bc TZ |
725 | static int field_is_string(struct format_field *field) |
726 | { | |
727 | if ((field->flags & FIELD_IS_ARRAY) && | |
728 | (!strstr(field->type, "char") || !strstr(field->type, "u8") || | |
729 | !strstr(field->type, "s8"))) | |
730 | return 1; | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | static int field_is_dynamic(struct format_field *field) | |
736 | { | |
737 | if (!strcmp(field->type, "__data_loc")) | |
738 | return 1; | |
739 | ||
740 | return 0; | |
741 | } | |
742 | ||
ea4010d1 SR |
743 | static int event_read_fields(struct event *event, struct format_field **fields) |
744 | { | |
745 | struct format_field *field = NULL; | |
746 | enum event_type type; | |
747 | char *token; | |
748 | char *last_token; | |
749 | int count = 0; | |
750 | ||
751 | do { | |
752 | type = read_token(&token); | |
753 | if (type == EVENT_NEWLINE) { | |
754 | free_token(token); | |
755 | return count; | |
756 | } | |
757 | ||
758 | count++; | |
759 | ||
760 | if (test_type_token(type, token, EVENT_ITEM, (char *)"field")) | |
761 | goto fail; | |
762 | free_token(token); | |
763 | ||
764 | type = read_token(&token); | |
765 | /* | |
766 | * The ftrace fields may still use the "special" name. | |
767 | * Just ignore it. | |
768 | */ | |
769 | if (event->flags & EVENT_FL_ISFTRACE && | |
770 | type == EVENT_ITEM && strcmp(token, "special") == 0) { | |
771 | free_token(token); | |
772 | type = read_token(&token); | |
773 | } | |
774 | ||
775 | if (test_type_token(type, token, EVENT_OP, (char *)":") < 0) | |
776 | return -1; | |
777 | ||
778 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
779 | goto fail; | |
780 | ||
781 | last_token = token; | |
782 | ||
783 | field = malloc_or_die(sizeof(*field)); | |
784 | memset(field, 0, sizeof(*field)); | |
785 | ||
786 | /* read the rest of the type */ | |
787 | for (;;) { | |
788 | type = read_token(&token); | |
789 | if (type == EVENT_ITEM || | |
790 | (type == EVENT_OP && strcmp(token, "*") == 0) || | |
791 | /* | |
792 | * Some of the ftrace fields are broken and have | |
793 | * an illegal "." in them. | |
794 | */ | |
795 | (event->flags & EVENT_FL_ISFTRACE && | |
796 | type == EVENT_OP && strcmp(token, ".") == 0)) { | |
797 | ||
798 | if (strcmp(token, "*") == 0) | |
799 | field->flags |= FIELD_IS_POINTER; | |
800 | ||
801 | if (field->type) { | |
802 | field->type = realloc(field->type, | |
803 | strlen(field->type) + | |
804 | strlen(last_token) + 2); | |
805 | strcat(field->type, " "); | |
806 | strcat(field->type, last_token); | |
807 | } else | |
808 | field->type = last_token; | |
809 | last_token = token; | |
810 | continue; | |
811 | } | |
812 | ||
813 | break; | |
814 | } | |
815 | ||
816 | if (!field->type) { | |
817 | die("no type found"); | |
818 | goto fail; | |
819 | } | |
820 | field->name = last_token; | |
821 | ||
822 | if (test_type(type, EVENT_OP)) | |
823 | goto fail; | |
824 | ||
825 | if (strcmp(token, "[") == 0) { | |
826 | enum event_type last_type = type; | |
827 | char *brackets = token; | |
828 | int len; | |
829 | ||
830 | field->flags |= FIELD_IS_ARRAY; | |
831 | ||
832 | type = read_token(&token); | |
833 | while (strcmp(token, "]") != 0) { | |
834 | if (last_type == EVENT_ITEM && | |
835 | type == EVENT_ITEM) | |
836 | len = 2; | |
837 | else | |
838 | len = 1; | |
839 | last_type = type; | |
840 | ||
841 | brackets = realloc(brackets, | |
842 | strlen(brackets) + | |
843 | strlen(token) + len); | |
844 | if (len == 2) | |
845 | strcat(brackets, " "); | |
846 | strcat(brackets, token); | |
847 | free_token(token); | |
848 | type = read_token(&token); | |
849 | if (type == EVENT_NONE) { | |
850 | die("failed to find token"); | |
851 | goto fail; | |
852 | } | |
853 | } | |
854 | ||
855 | free_token(token); | |
856 | ||
857 | brackets = realloc(brackets, strlen(brackets) + 2); | |
858 | strcat(brackets, "]"); | |
859 | ||
860 | /* add brackets to type */ | |
861 | ||
862 | type = read_token(&token); | |
863 | /* | |
864 | * If the next token is not an OP, then it is of | |
865 | * the format: type [] item; | |
866 | */ | |
867 | if (type == EVENT_ITEM) { | |
868 | field->type = realloc(field->type, | |
869 | strlen(field->type) + | |
870 | strlen(field->name) + | |
871 | strlen(brackets) + 2); | |
872 | strcat(field->type, " "); | |
873 | strcat(field->type, field->name); | |
874 | free_token(field->name); | |
875 | strcat(field->type, brackets); | |
876 | field->name = token; | |
877 | type = read_token(&token); | |
878 | } else { | |
879 | field->type = realloc(field->type, | |
880 | strlen(field->type) + | |
881 | strlen(brackets) + 1); | |
882 | strcat(field->type, brackets); | |
883 | } | |
884 | free(brackets); | |
885 | } | |
886 | ||
064739bc TZ |
887 | if (field_is_string(field)) { |
888 | field->flags |= FIELD_IS_STRING; | |
889 | if (field_is_dynamic(field)) | |
890 | field->flags |= FIELD_IS_DYNAMIC; | |
891 | } | |
892 | ||
ea4010d1 SR |
893 | if (test_type_token(type, token, EVENT_OP, (char *)";")) |
894 | goto fail; | |
895 | free_token(token); | |
896 | ||
897 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
898 | goto fail_expect; | |
899 | ||
900 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
901 | goto fail_expect; | |
902 | ||
903 | if (read_expect_type(EVENT_ITEM, &token)) | |
904 | goto fail; | |
905 | field->offset = strtoul(token, NULL, 0); | |
906 | free_token(token); | |
907 | ||
908 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
909 | goto fail_expect; | |
910 | ||
911 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
912 | goto fail_expect; | |
913 | ||
914 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
915 | goto fail_expect; | |
916 | ||
917 | if (read_expect_type(EVENT_ITEM, &token)) | |
918 | goto fail; | |
919 | field->size = strtoul(token, NULL, 0); | |
920 | free_token(token); | |
921 | ||
26a50744 TZ |
922 | if (read_expected(EVENT_OP, (char *)";") < 0) |
923 | goto fail_expect; | |
924 | ||
13999e59 SR |
925 | type = read_token(&token); |
926 | if (type != EVENT_NEWLINE) { | |
927 | /* newer versions of the kernel have a "signed" type */ | |
928 | if (test_type_token(type, token, EVENT_ITEM, (char *)"signed")) | |
929 | goto fail; | |
26a50744 | 930 | |
13999e59 | 931 | free_token(token); |
26a50744 | 932 | |
13999e59 SR |
933 | if (read_expected(EVENT_OP, (char *)":") < 0) |
934 | goto fail_expect; | |
26a50744 | 935 | |
13999e59 SR |
936 | if (read_expect_type(EVENT_ITEM, &token)) |
937 | goto fail; | |
938 | ||
939 | /* add signed type */ | |
940 | ||
941 | free_token(token); | |
942 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
943 | goto fail_expect; | |
944 | ||
945 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
946 | goto fail; | |
947 | } | |
ea4010d1 | 948 | |
ea4010d1 SR |
949 | free_token(token); |
950 | ||
951 | *fields = field; | |
952 | fields = &field->next; | |
953 | ||
954 | } while (1); | |
955 | ||
956 | return 0; | |
957 | ||
958 | fail: | |
959 | free_token(token); | |
960 | fail_expect: | |
961 | if (field) | |
962 | free(field); | |
963 | return -1; | |
964 | } | |
965 | ||
966 | static int event_read_format(struct event *event) | |
967 | { | |
968 | char *token; | |
969 | int ret; | |
970 | ||
971 | if (read_expected_item(EVENT_ITEM, (char *)"format") < 0) | |
972 | return -1; | |
973 | ||
974 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
975 | return -1; | |
976 | ||
977 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
978 | goto fail; | |
979 | free_token(token); | |
980 | ||
981 | ret = event_read_fields(event, &event->format.common_fields); | |
982 | if (ret < 0) | |
983 | return ret; | |
984 | event->format.nr_common = ret; | |
985 | ||
986 | ret = event_read_fields(event, &event->format.fields); | |
987 | if (ret < 0) | |
988 | return ret; | |
989 | event->format.nr_fields = ret; | |
990 | ||
991 | return 0; | |
992 | ||
993 | fail: | |
994 | free_token(token); | |
995 | return -1; | |
996 | } | |
997 | ||
998 | enum event_type | |
999 | process_arg_token(struct event *event, struct print_arg *arg, | |
1000 | char **tok, enum event_type type); | |
1001 | ||
1002 | static enum event_type | |
1003 | process_arg(struct event *event, struct print_arg *arg, char **tok) | |
1004 | { | |
1005 | enum event_type type; | |
1006 | char *token; | |
1007 | ||
1008 | type = read_token(&token); | |
1009 | *tok = token; | |
1010 | ||
1011 | return process_arg_token(event, arg, tok, type); | |
1012 | } | |
1013 | ||
1014 | static enum event_type | |
1015 | process_cond(struct event *event, struct print_arg *top, char **tok) | |
1016 | { | |
1017 | struct print_arg *arg, *left, *right; | |
1018 | enum event_type type; | |
1019 | char *token = NULL; | |
1020 | ||
1021 | arg = malloc_or_die(sizeof(*arg)); | |
1022 | memset(arg, 0, sizeof(*arg)); | |
1023 | ||
1024 | left = malloc_or_die(sizeof(*left)); | |
1025 | ||
1026 | right = malloc_or_die(sizeof(*right)); | |
1027 | ||
1028 | arg->type = PRINT_OP; | |
1029 | arg->op.left = left; | |
1030 | arg->op.right = right; | |
1031 | ||
1032 | *tok = NULL; | |
1033 | type = process_arg(event, left, &token); | |
1034 | if (test_type_token(type, token, EVENT_OP, (char *)":")) | |
1035 | goto out_free; | |
1036 | ||
1037 | arg->op.op = token; | |
1038 | ||
1039 | type = process_arg(event, right, &token); | |
1040 | ||
1041 | top->op.right = arg; | |
1042 | ||
1043 | *tok = token; | |
1044 | return type; | |
1045 | ||
1046 | out_free: | |
1047 | free_token(*tok); | |
1048 | free(right); | |
1049 | free(left); | |
1050 | free_arg(arg); | |
1051 | return EVENT_ERROR; | |
1052 | } | |
1053 | ||
0959b8d6 SR |
1054 | static enum event_type |
1055 | process_array(struct event *event, struct print_arg *top, char **tok) | |
1056 | { | |
1057 | struct print_arg *arg; | |
1058 | enum event_type type; | |
1059 | char *token = NULL; | |
1060 | ||
1061 | arg = malloc_or_die(sizeof(*arg)); | |
1062 | memset(arg, 0, sizeof(*arg)); | |
1063 | ||
1064 | *tok = NULL; | |
1065 | type = process_arg(event, arg, &token); | |
1066 | if (test_type_token(type, token, EVENT_OP, (char *)"]")) | |
1067 | goto out_free; | |
1068 | ||
1069 | top->op.right = arg; | |
1070 | ||
1071 | free_token(token); | |
1072 | type = read_token_item(&token); | |
1073 | *tok = token; | |
1074 | ||
1075 | return type; | |
1076 | ||
1077 | out_free: | |
1078 | free_token(*tok); | |
1079 | free_arg(arg); | |
1080 | return EVENT_ERROR; | |
1081 | } | |
1082 | ||
ea4010d1 SR |
1083 | static int get_op_prio(char *op) |
1084 | { | |
1085 | if (!op[1]) { | |
1086 | switch (op[0]) { | |
1087 | case '*': | |
1088 | case '/': | |
1089 | case '%': | |
1090 | return 6; | |
1091 | case '+': | |
1092 | case '-': | |
1093 | return 7; | |
1094 | /* '>>' and '<<' are 8 */ | |
1095 | case '<': | |
1096 | case '>': | |
1097 | return 9; | |
1098 | /* '==' and '!=' are 10 */ | |
1099 | case '&': | |
1100 | return 11; | |
1101 | case '^': | |
1102 | return 12; | |
1103 | case '|': | |
1104 | return 13; | |
1105 | case '?': | |
1106 | return 16; | |
1107 | default: | |
1108 | die("unknown op '%c'", op[0]); | |
1109 | return -1; | |
1110 | } | |
1111 | } else { | |
1112 | if (strcmp(op, "++") == 0 || | |
1113 | strcmp(op, "--") == 0) { | |
1114 | return 3; | |
1115 | } else if (strcmp(op, ">>") == 0 || | |
1116 | strcmp(op, "<<") == 0) { | |
1117 | return 8; | |
1118 | } else if (strcmp(op, ">=") == 0 || | |
1119 | strcmp(op, "<=") == 0) { | |
1120 | return 9; | |
1121 | } else if (strcmp(op, "==") == 0 || | |
1122 | strcmp(op, "!=") == 0) { | |
1123 | return 10; | |
1124 | } else if (strcmp(op, "&&") == 0) { | |
1125 | return 14; | |
1126 | } else if (strcmp(op, "||") == 0) { | |
1127 | return 15; | |
1128 | } else { | |
1129 | die("unknown op '%s'", op); | |
1130 | return -1; | |
1131 | } | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | static void set_op_prio(struct print_arg *arg) | |
1136 | { | |
1137 | ||
1138 | /* single ops are the greatest */ | |
1139 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { | |
1140 | arg->op.prio = 0; | |
1141 | return; | |
1142 | } | |
1143 | ||
1144 | arg->op.prio = get_op_prio(arg->op.op); | |
1145 | } | |
1146 | ||
1147 | static enum event_type | |
1148 | process_op(struct event *event, struct print_arg *arg, char **tok) | |
1149 | { | |
1150 | struct print_arg *left, *right = NULL; | |
1151 | enum event_type type; | |
1152 | char *token; | |
1153 | ||
1154 | /* the op is passed in via tok */ | |
1155 | token = *tok; | |
1156 | ||
1157 | if (arg->type == PRINT_OP && !arg->op.left) { | |
1158 | /* handle single op */ | |
1159 | if (token[1]) { | |
1160 | die("bad op token %s", token); | |
1161 | return EVENT_ERROR; | |
1162 | } | |
1163 | switch (token[0]) { | |
1164 | case '!': | |
1165 | case '+': | |
1166 | case '-': | |
1167 | break; | |
1168 | default: | |
1169 | die("bad op token %s", token); | |
1170 | return EVENT_ERROR; | |
1171 | } | |
1172 | ||
1173 | /* make an empty left */ | |
1174 | left = malloc_or_die(sizeof(*left)); | |
1175 | left->type = PRINT_NULL; | |
1176 | arg->op.left = left; | |
1177 | ||
1178 | right = malloc_or_die(sizeof(*right)); | |
1179 | arg->op.right = right; | |
1180 | ||
1181 | type = process_arg(event, right, tok); | |
1182 | ||
1183 | } else if (strcmp(token, "?") == 0) { | |
1184 | ||
1185 | left = malloc_or_die(sizeof(*left)); | |
1186 | /* copy the top arg to the left */ | |
1187 | *left = *arg; | |
1188 | ||
1189 | arg->type = PRINT_OP; | |
1190 | arg->op.op = token; | |
1191 | arg->op.left = left; | |
1192 | arg->op.prio = 0; | |
1193 | ||
1194 | type = process_cond(event, arg, tok); | |
1195 | ||
1196 | } else if (strcmp(token, ">>") == 0 || | |
1197 | strcmp(token, "<<") == 0 || | |
1198 | 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 || | |
298ebc3e SR |
1207 | strcmp(token, "<") == 0 || |
1208 | strcmp(token, ">") == 0 || | |
ea4010d1 SR |
1209 | strcmp(token, "==") == 0 || |
1210 | strcmp(token, "!=") == 0) { | |
1211 | ||
1212 | left = malloc_or_die(sizeof(*left)); | |
1213 | ||
1214 | /* copy the top arg to the left */ | |
1215 | *left = *arg; | |
1216 | ||
1217 | arg->type = PRINT_OP; | |
1218 | arg->op.op = token; | |
1219 | arg->op.left = left; | |
1220 | ||
1221 | set_op_prio(arg); | |
1222 | ||
1223 | right = malloc_or_die(sizeof(*right)); | |
1224 | ||
b99af874 SR |
1225 | type = read_token_item(&token); |
1226 | *tok = token; | |
1227 | ||
1228 | /* could just be a type pointer */ | |
1229 | if ((strcmp(arg->op.op, "*") == 0) && | |
1230 | type == EVENT_DELIM && (strcmp(token, ")") == 0)) { | |
1231 | if (left->type != PRINT_ATOM) | |
1232 | die("bad pointer type"); | |
1233 | left->atom.atom = realloc(left->atom.atom, | |
1234 | sizeof(left->atom.atom) + 3); | |
1235 | strcat(left->atom.atom, " *"); | |
1236 | *arg = *left; | |
1237 | free(arg); | |
1238 | ||
1239 | return type; | |
1240 | } | |
1241 | ||
1242 | type = process_arg_token(event, right, tok, type); | |
ea4010d1 SR |
1243 | |
1244 | arg->op.right = right; | |
1245 | ||
0959b8d6 SR |
1246 | } else if (strcmp(token, "[") == 0) { |
1247 | ||
1248 | left = malloc_or_die(sizeof(*left)); | |
1249 | *left = *arg; | |
1250 | ||
1251 | arg->type = PRINT_OP; | |
1252 | arg->op.op = token; | |
1253 | arg->op.left = left; | |
1254 | ||
1255 | arg->op.prio = 0; | |
1256 | type = process_array(event, arg, tok); | |
1257 | ||
ea4010d1 | 1258 | } else { |
07a4bddd SR |
1259 | warning("unknown op '%s'", token); |
1260 | event->flags |= EVENT_FL_FAILED; | |
ea4010d1 SR |
1261 | /* the arg is now the left side */ |
1262 | return EVENT_NONE; | |
1263 | } | |
1264 | ||
ea4010d1 SR |
1265 | if (type == EVENT_OP) { |
1266 | int prio; | |
1267 | ||
1268 | /* higher prios need to be closer to the root */ | |
1269 | prio = get_op_prio(*tok); | |
1270 | ||
1271 | if (prio > arg->op.prio) | |
1272 | return process_op(event, arg, tok); | |
1273 | ||
1274 | return process_op(event, right, tok); | |
1275 | } | |
1276 | ||
1277 | return type; | |
1278 | } | |
1279 | ||
1280 | static enum event_type | |
1281 | process_entry(struct event *event __unused, struct print_arg *arg, | |
1282 | char **tok) | |
1283 | { | |
1284 | enum event_type type; | |
1285 | char *field; | |
1286 | char *token; | |
1287 | ||
1288 | if (read_expected(EVENT_OP, (char *)"->") < 0) | |
1289 | return EVENT_ERROR; | |
1290 | ||
1291 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1292 | goto fail; | |
1293 | field = token; | |
1294 | ||
1295 | arg->type = PRINT_FIELD; | |
1296 | arg->field.name = field; | |
1297 | ||
1298 | type = read_token(&token); | |
1299 | *tok = token; | |
1300 | ||
1301 | return type; | |
1302 | ||
1303 | fail: | |
1304 | free_token(token); | |
1305 | return EVENT_ERROR; | |
1306 | } | |
1307 | ||
1308 | static char *arg_eval (struct print_arg *arg); | |
1309 | ||
1310 | static long long arg_num_eval(struct print_arg *arg) | |
1311 | { | |
1312 | long long left, right; | |
1313 | long long val = 0; | |
1314 | ||
1315 | switch (arg->type) { | |
1316 | case PRINT_ATOM: | |
1317 | val = strtoll(arg->atom.atom, NULL, 0); | |
1318 | break; | |
1319 | case PRINT_TYPE: | |
1320 | val = arg_num_eval(arg->typecast.item); | |
1321 | break; | |
1322 | case PRINT_OP: | |
1323 | switch (arg->op.op[0]) { | |
1324 | case '|': | |
1325 | left = arg_num_eval(arg->op.left); | |
1326 | right = arg_num_eval(arg->op.right); | |
1327 | if (arg->op.op[1]) | |
1328 | val = left || right; | |
1329 | else | |
1330 | val = left | right; | |
1331 | break; | |
1332 | case '&': | |
1333 | left = arg_num_eval(arg->op.left); | |
1334 | right = arg_num_eval(arg->op.right); | |
1335 | if (arg->op.op[1]) | |
1336 | val = left && right; | |
1337 | else | |
1338 | val = left & right; | |
1339 | break; | |
1340 | case '<': | |
1341 | left = arg_num_eval(arg->op.left); | |
1342 | right = arg_num_eval(arg->op.right); | |
1343 | switch (arg->op.op[1]) { | |
1344 | case 0: | |
1345 | val = left < right; | |
1346 | break; | |
1347 | case '<': | |
1348 | val = left << right; | |
1349 | break; | |
1350 | case '=': | |
1351 | val = left <= right; | |
1352 | break; | |
1353 | default: | |
1354 | die("unknown op '%s'", arg->op.op); | |
1355 | } | |
1356 | break; | |
1357 | case '>': | |
1358 | left = arg_num_eval(arg->op.left); | |
1359 | right = arg_num_eval(arg->op.right); | |
1360 | switch (arg->op.op[1]) { | |
1361 | case 0: | |
1362 | val = left > right; | |
1363 | break; | |
1364 | case '>': | |
1365 | val = left >> right; | |
1366 | break; | |
1367 | case '=': | |
1368 | val = left >= right; | |
1369 | break; | |
1370 | default: | |
1371 | die("unknown op '%s'", arg->op.op); | |
1372 | } | |
1373 | break; | |
1374 | case '=': | |
1375 | left = arg_num_eval(arg->op.left); | |
1376 | right = arg_num_eval(arg->op.right); | |
1377 | ||
1378 | if (arg->op.op[1] != '=') | |
1379 | die("unknown op '%s'", arg->op.op); | |
1380 | ||
1381 | val = left == right; | |
1382 | break; | |
1383 | case '!': | |
1384 | left = arg_num_eval(arg->op.left); | |
1385 | right = arg_num_eval(arg->op.right); | |
1386 | ||
1387 | switch (arg->op.op[1]) { | |
1388 | case '=': | |
1389 | val = left != right; | |
1390 | break; | |
1391 | default: | |
1392 | die("unknown op '%s'", arg->op.op); | |
1393 | } | |
1394 | break; | |
1395 | default: | |
1396 | die("unknown op '%s'", arg->op.op); | |
1397 | } | |
1398 | break; | |
1399 | ||
1400 | case PRINT_NULL: | |
1401 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1402 | case PRINT_STRING: | |
1403 | default: | |
1404 | die("invalid eval type %d", arg->type); | |
1405 | ||
1406 | } | |
1407 | return val; | |
1408 | } | |
1409 | ||
1410 | static char *arg_eval (struct print_arg *arg) | |
1411 | { | |
1412 | long long val; | |
1413 | static char buf[20]; | |
1414 | ||
1415 | switch (arg->type) { | |
1416 | case PRINT_ATOM: | |
1417 | return arg->atom.atom; | |
1418 | case PRINT_TYPE: | |
1419 | return arg_eval(arg->typecast.item); | |
1420 | case PRINT_OP: | |
1421 | val = arg_num_eval(arg); | |
1422 | sprintf(buf, "%lld", val); | |
1423 | return buf; | |
1424 | ||
1425 | case PRINT_NULL: | |
1426 | case PRINT_FIELD ... PRINT_SYMBOL: | |
1427 | case PRINT_STRING: | |
1428 | default: | |
1429 | die("invalid eval type %d", arg->type); | |
1430 | break; | |
1431 | } | |
1432 | ||
1433 | return NULL; | |
1434 | } | |
1435 | ||
1436 | static enum event_type | |
1437 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) | |
1438 | { | |
1439 | enum event_type type; | |
1440 | struct print_arg *arg = NULL; | |
1441 | struct print_flag_sym *field; | |
1442 | char *token = NULL; | |
1443 | char *value; | |
1444 | ||
1445 | do { | |
1446 | free_token(token); | |
1447 | type = read_token_item(&token); | |
1448 | if (test_type_token(type, token, EVENT_OP, (char *)"{")) | |
1449 | break; | |
1450 | ||
1451 | arg = malloc_or_die(sizeof(*arg)); | |
1452 | ||
1453 | free_token(token); | |
1454 | type = process_arg(event, arg, &token); | |
1455 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1456 | goto out_free; | |
1457 | ||
1458 | field = malloc_or_die(sizeof(*field)); | |
1459 | memset(field, 0, sizeof(field)); | |
1460 | ||
1461 | value = arg_eval(arg); | |
1462 | field->value = strdup(value); | |
1463 | ||
1464 | free_token(token); | |
1465 | type = process_arg(event, arg, &token); | |
1466 | if (test_type_token(type, token, EVENT_OP, (char *)"}")) | |
1467 | goto out_free; | |
1468 | ||
1469 | value = arg_eval(arg); | |
1470 | field->str = strdup(value); | |
1471 | free_arg(arg); | |
1472 | arg = NULL; | |
1473 | ||
1474 | *list = field; | |
1475 | list = &field->next; | |
1476 | ||
1477 | free_token(token); | |
1478 | type = read_token_item(&token); | |
1479 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); | |
1480 | ||
1481 | *tok = token; | |
1482 | return type; | |
1483 | ||
1484 | out_free: | |
1485 | free_arg(arg); | |
1486 | free_token(token); | |
1487 | ||
1488 | return EVENT_ERROR; | |
1489 | } | |
1490 | ||
1491 | static enum event_type | |
1492 | process_flags(struct event *event, struct print_arg *arg, char **tok) | |
1493 | { | |
1494 | struct print_arg *field; | |
1495 | enum event_type type; | |
1496 | char *token; | |
1497 | ||
1498 | memset(arg, 0, sizeof(*arg)); | |
1499 | arg->type = PRINT_FLAGS; | |
1500 | ||
1501 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1502 | return EVENT_ERROR; | |
1503 | ||
1504 | field = malloc_or_die(sizeof(*field)); | |
1505 | ||
1506 | type = process_arg(event, field, &token); | |
1507 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1508 | goto out_free; | |
1509 | ||
1510 | arg->flags.field = field; | |
1511 | ||
1512 | type = read_token_item(&token); | |
1513 | if (event_item_type(type)) { | |
1514 | arg->flags.delim = token; | |
1515 | type = read_token_item(&token); | |
1516 | } | |
1517 | ||
1518 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1519 | goto out_free; | |
1520 | ||
1521 | type = process_fields(event, &arg->flags.flags, &token); | |
1522 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1523 | goto out_free; | |
1524 | ||
1525 | free_token(token); | |
1526 | type = read_token_item(tok); | |
1527 | return type; | |
1528 | ||
1529 | out_free: | |
1530 | free_token(token); | |
1531 | return EVENT_ERROR; | |
1532 | } | |
1533 | ||
1534 | static enum event_type | |
1535 | process_symbols(struct event *event, struct print_arg *arg, char **tok) | |
1536 | { | |
1537 | struct print_arg *field; | |
1538 | enum event_type type; | |
1539 | char *token; | |
1540 | ||
1541 | memset(arg, 0, sizeof(*arg)); | |
1542 | arg->type = PRINT_SYMBOL; | |
1543 | ||
1544 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) | |
1545 | return EVENT_ERROR; | |
1546 | ||
1547 | field = malloc_or_die(sizeof(*field)); | |
1548 | ||
1549 | type = process_arg(event, field, &token); | |
1550 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) | |
1551 | goto out_free; | |
1552 | ||
1553 | arg->symbol.field = field; | |
1554 | ||
1555 | type = process_fields(event, &arg->symbol.symbols, &token); | |
1556 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) | |
1557 | goto out_free; | |
1558 | ||
1559 | free_token(token); | |
1560 | type = read_token_item(tok); | |
1561 | return type; | |
1562 | ||
1563 | out_free: | |
1564 | free_token(token); | |
1565 | return EVENT_ERROR; | |
1566 | } | |
1567 | ||
1568 | static enum event_type | |
1569 | process_paren(struct event *event, struct print_arg *arg, char **tok) | |
1570 | { | |
1571 | struct print_arg *item_arg; | |
1572 | enum event_type type; | |
1573 | char *token; | |
1574 | ||
1575 | type = process_arg(event, arg, &token); | |
1576 | ||
1577 | if (type == EVENT_ERROR) | |
1578 | return EVENT_ERROR; | |
1579 | ||
b99af874 SR |
1580 | if (type == EVENT_OP) |
1581 | type = process_op(event, arg, &token); | |
ea4010d1 | 1582 | |
b99af874 SR |
1583 | if (type == EVENT_ERROR) |
1584 | return EVENT_ERROR; | |
ea4010d1 SR |
1585 | |
1586 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) { | |
1587 | free_token(token); | |
1588 | return EVENT_ERROR; | |
1589 | } | |
1590 | ||
1591 | free_token(token); | |
1592 | type = read_token_item(&token); | |
1593 | ||
1594 | /* | |
1595 | * If the next token is an item or another open paren, then | |
1596 | * this was a typecast. | |
1597 | */ | |
1598 | if (event_item_type(type) || | |
1599 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { | |
1600 | ||
1601 | /* make this a typecast and contine */ | |
1602 | ||
1603 | /* prevous must be an atom */ | |
1604 | if (arg->type != PRINT_ATOM) | |
1605 | die("previous needed to be PRINT_ATOM"); | |
1606 | ||
1607 | item_arg = malloc_or_die(sizeof(*item_arg)); | |
1608 | ||
1609 | arg->type = PRINT_TYPE; | |
1610 | arg->typecast.type = arg->atom.atom; | |
1611 | arg->typecast.item = item_arg; | |
1612 | type = process_arg_token(event, item_arg, &token, type); | |
1613 | ||
1614 | } | |
1615 | ||
1616 | *tok = token; | |
1617 | return type; | |
1618 | } | |
1619 | ||
1620 | ||
1621 | static enum event_type | |
1622 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) | |
1623 | { | |
1624 | enum event_type type; | |
1625 | char *token; | |
1626 | ||
1627 | if (read_expected(EVENT_DELIM, (char *)"(") < 0) | |
1628 | return EVENT_ERROR; | |
1629 | ||
1630 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
1631 | goto fail; | |
1632 | ||
1633 | arg->type = PRINT_STRING; | |
1634 | arg->string.string = token; | |
561f732c | 1635 | arg->string.offset = -1; |
ea4010d1 SR |
1636 | |
1637 | if (read_expected(EVENT_DELIM, (char *)")") < 0) | |
1638 | return EVENT_ERROR; | |
1639 | ||
1640 | type = read_token(&token); | |
1641 | *tok = token; | |
1642 | ||
1643 | return type; | |
1644 | fail: | |
1645 | free_token(token); | |
1646 | return EVENT_ERROR; | |
1647 | } | |
1648 | ||
1649 | enum event_type | |
1650 | process_arg_token(struct event *event, struct print_arg *arg, | |
1651 | char **tok, enum event_type type) | |
1652 | { | |
1653 | char *token; | |
1654 | char *atom; | |
1655 | ||
1656 | token = *tok; | |
1657 | ||
1658 | switch (type) { | |
1659 | case EVENT_ITEM: | |
1660 | if (strcmp(token, "REC") == 0) { | |
1661 | free_token(token); | |
1662 | type = process_entry(event, arg, &token); | |
1663 | } else if (strcmp(token, "__print_flags") == 0) { | |
1664 | free_token(token); | |
1665 | type = process_flags(event, arg, &token); | |
1666 | } else if (strcmp(token, "__print_symbolic") == 0) { | |
1667 | free_token(token); | |
1668 | type = process_symbols(event, arg, &token); | |
1669 | } else if (strcmp(token, "__get_str") == 0) { | |
1670 | free_token(token); | |
1671 | type = process_str(event, arg, &token); | |
1672 | } else { | |
1673 | atom = token; | |
1674 | /* test the next token */ | |
1675 | type = read_token_item(&token); | |
1676 | ||
1677 | /* atoms can be more than one token long */ | |
1678 | while (type == EVENT_ITEM) { | |
1679 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); | |
1680 | strcat(atom, " "); | |
1681 | strcat(atom, token); | |
1682 | free_token(token); | |
1683 | type = read_token_item(&token); | |
1684 | } | |
1685 | ||
1686 | /* todo, test for function */ | |
1687 | ||
1688 | arg->type = PRINT_ATOM; | |
1689 | arg->atom.atom = atom; | |
1690 | } | |
1691 | break; | |
1692 | case EVENT_DQUOTE: | |
1693 | case EVENT_SQUOTE: | |
1694 | arg->type = PRINT_ATOM; | |
1695 | arg->atom.atom = token; | |
1696 | type = read_token_item(&token); | |
1697 | break; | |
1698 | case EVENT_DELIM: | |
1699 | if (strcmp(token, "(") == 0) { | |
1700 | free_token(token); | |
1701 | type = process_paren(event, arg, &token); | |
1702 | break; | |
1703 | } | |
1704 | case EVENT_OP: | |
1705 | /* handle single ops */ | |
1706 | arg->type = PRINT_OP; | |
1707 | arg->op.op = token; | |
1708 | arg->op.left = NULL; | |
1709 | type = process_op(event, arg, &token); | |
1710 | ||
1711 | break; | |
1712 | ||
1713 | case EVENT_ERROR ... EVENT_NEWLINE: | |
1714 | default: | |
1715 | die("unexpected type %d", type); | |
1716 | } | |
1717 | *tok = token; | |
1718 | ||
1719 | return type; | |
1720 | } | |
1721 | ||
1722 | static int event_read_print_args(struct event *event, struct print_arg **list) | |
1723 | { | |
f1d1feec | 1724 | enum event_type type = EVENT_ERROR; |
ea4010d1 SR |
1725 | struct print_arg *arg; |
1726 | char *token; | |
1727 | int args = 0; | |
1728 | ||
1729 | do { | |
f1d1feec SR |
1730 | if (type == EVENT_NEWLINE) { |
1731 | free_token(token); | |
1732 | type = read_token_item(&token); | |
1733 | continue; | |
1734 | } | |
1735 | ||
ea4010d1 SR |
1736 | arg = malloc_or_die(sizeof(*arg)); |
1737 | memset(arg, 0, sizeof(*arg)); | |
1738 | ||
1739 | type = process_arg(event, arg, &token); | |
1740 | ||
1741 | if (type == EVENT_ERROR) { | |
1742 | free_arg(arg); | |
1743 | return -1; | |
1744 | } | |
1745 | ||
1746 | *list = arg; | |
1747 | args++; | |
1748 | ||
1749 | if (type == EVENT_OP) { | |
1750 | type = process_op(event, arg, &token); | |
1751 | list = &arg->next; | |
1752 | continue; | |
1753 | } | |
1754 | ||
1755 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { | |
1756 | free_token(token); | |
1757 | *list = arg; | |
1758 | list = &arg->next; | |
1759 | continue; | |
1760 | } | |
1761 | break; | |
1762 | } while (type != EVENT_NONE); | |
1763 | ||
1764 | if (type != EVENT_NONE) | |
1765 | free_token(token); | |
1766 | ||
1767 | return args; | |
1768 | } | |
1769 | ||
1770 | static int event_read_print(struct event *event) | |
1771 | { | |
1772 | enum event_type type; | |
1773 | char *token; | |
1774 | int ret; | |
1775 | ||
1776 | if (read_expected_item(EVENT_ITEM, (char *)"print") < 0) | |
1777 | return -1; | |
1778 | ||
1779 | if (read_expected(EVENT_ITEM, (char *)"fmt") < 0) | |
1780 | return -1; | |
1781 | ||
1782 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
1783 | return -1; | |
1784 | ||
1785 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) | |
1786 | goto fail; | |
1787 | ||
924a79af | 1788 | concat: |
ea4010d1 SR |
1789 | event->print_fmt.format = token; |
1790 | event->print_fmt.args = NULL; | |
1791 | ||
1792 | /* ok to have no arg */ | |
1793 | type = read_token_item(&token); | |
1794 | ||
1795 | if (type == EVENT_NONE) | |
1796 | return 0; | |
1797 | ||
924a79af SR |
1798 | /* Handle concatination of print lines */ |
1799 | if (type == EVENT_DQUOTE) { | |
1800 | char *cat; | |
1801 | ||
1802 | cat = malloc_or_die(strlen(event->print_fmt.format) + | |
1803 | strlen(token) + 1); | |
1804 | strcpy(cat, event->print_fmt.format); | |
1805 | strcat(cat, token); | |
1806 | free_token(token); | |
1807 | free_token(event->print_fmt.format); | |
1808 | event->print_fmt.format = NULL; | |
1809 | token = cat; | |
1810 | goto concat; | |
1811 | } | |
1812 | ||
ea4010d1 SR |
1813 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
1814 | goto fail; | |
1815 | ||
1816 | free_token(token); | |
1817 | ||
1818 | ret = event_read_print_args(event, &event->print_fmt.args); | |
1819 | if (ret < 0) | |
1820 | return -1; | |
1821 | ||
0d1da915 | 1822 | return ret; |
ea4010d1 SR |
1823 | |
1824 | fail: | |
1825 | free_token(token); | |
1826 | return -1; | |
1827 | } | |
1828 | ||
1829 | static struct format_field * | |
1830 | find_common_field(struct event *event, const char *name) | |
1831 | { | |
1832 | struct format_field *format; | |
1833 | ||
1834 | for (format = event->format.common_fields; | |
1835 | format; format = format->next) { | |
1836 | if (strcmp(format->name, name) == 0) | |
1837 | break; | |
1838 | } | |
1839 | ||
1840 | return format; | |
1841 | } | |
1842 | ||
1843 | static struct format_field * | |
1844 | find_field(struct event *event, const char *name) | |
1845 | { | |
1846 | struct format_field *format; | |
1847 | ||
1848 | for (format = event->format.fields; | |
1849 | format; format = format->next) { | |
1850 | if (strcmp(format->name, name) == 0) | |
1851 | break; | |
1852 | } | |
1853 | ||
1854 | return format; | |
1855 | } | |
1856 | ||
1857 | static struct format_field * | |
1858 | find_any_field(struct event *event, const char *name) | |
1859 | { | |
1860 | struct format_field *format; | |
1861 | ||
1862 | format = find_common_field(event, name); | |
1863 | if (format) | |
1864 | return format; | |
1865 | return find_field(event, name); | |
1866 | } | |
1867 | ||
1868 | static unsigned long long read_size(void *ptr, int size) | |
1869 | { | |
1870 | switch (size) { | |
1871 | case 1: | |
1872 | return *(unsigned char *)ptr; | |
1873 | case 2: | |
1874 | return data2host2(ptr); | |
1875 | case 4: | |
1876 | return data2host4(ptr); | |
1877 | case 8: | |
1878 | return data2host8(ptr); | |
1879 | default: | |
1880 | /* BUG! */ | |
1881 | return 0; | |
1882 | } | |
1883 | } | |
1884 | ||
46538818 FW |
1885 | unsigned long long |
1886 | raw_field_value(struct event *event, const char *name, void *data) | |
1887 | { | |
1888 | struct format_field *field; | |
1889 | ||
1890 | field = find_any_field(event, name); | |
1891 | if (!field) | |
1892 | return 0ULL; | |
1893 | ||
1894 | return read_size(data + field->offset, field->size); | |
1895 | } | |
1896 | ||
1897 | void *raw_field_ptr(struct event *event, const char *name, void *data) | |
1898 | { | |
1899 | struct format_field *field; | |
1900 | ||
1901 | field = find_any_field(event, name); | |
1902 | if (!field) | |
1903 | return NULL; | |
1904 | ||
1905 | return data + field->offset; | |
1906 | } | |
1907 | ||
ea4010d1 SR |
1908 | static int get_common_info(const char *type, int *offset, int *size) |
1909 | { | |
1910 | struct event *event; | |
1911 | struct format_field *field; | |
1912 | ||
1913 | /* | |
1914 | * All events should have the same common elements. | |
1915 | * Pick any event to find where the type is; | |
1916 | */ | |
1917 | if (!event_list) | |
1918 | die("no event_list!"); | |
1919 | ||
1920 | event = event_list; | |
1921 | field = find_common_field(event, type); | |
1922 | if (!field) | |
1923 | die("field '%s' not found", type); | |
1924 | ||
1925 | *offset = field->offset; | |
1926 | *size = field->size; | |
1927 | ||
1928 | return 0; | |
1929 | } | |
1930 | ||
ec156764 | 1931 | int trace_parse_common_type(void *data) |
ea4010d1 SR |
1932 | { |
1933 | static int type_offset; | |
1934 | static int type_size; | |
1935 | int ret; | |
1936 | ||
1937 | if (!type_size) { | |
1938 | ret = get_common_info("common_type", | |
1939 | &type_offset, | |
1940 | &type_size); | |
1941 | if (ret < 0) | |
1942 | return ret; | |
1943 | } | |
1944 | return read_size(data + type_offset, type_size); | |
1945 | } | |
1946 | ||
1947 | static int parse_common_pid(void *data) | |
1948 | { | |
1949 | static int pid_offset; | |
1950 | static int pid_size; | |
1951 | int ret; | |
1952 | ||
1953 | if (!pid_size) { | |
1954 | ret = get_common_info("common_pid", | |
1955 | &pid_offset, | |
1956 | &pid_size); | |
1957 | if (ret < 0) | |
1958 | return ret; | |
1959 | } | |
1960 | ||
1961 | return read_size(data + pid_offset, pid_size); | |
1962 | } | |
1963 | ||
ec156764 | 1964 | struct event *trace_find_event(int id) |
ea4010d1 SR |
1965 | { |
1966 | struct event *event; | |
1967 | ||
1968 | for (event = event_list; event; event = event->next) { | |
1969 | if (event->id == id) | |
1970 | break; | |
1971 | } | |
1972 | return event; | |
1973 | } | |
1974 | ||
1975 | static unsigned long long eval_num_arg(void *data, int size, | |
1976 | struct event *event, struct print_arg *arg) | |
1977 | { | |
1978 | unsigned long long val = 0; | |
1979 | unsigned long long left, right; | |
0959b8d6 | 1980 | struct print_arg *larg; |
ea4010d1 SR |
1981 | |
1982 | switch (arg->type) { | |
1983 | case PRINT_NULL: | |
1984 | /* ?? */ | |
1985 | return 0; | |
1986 | case PRINT_ATOM: | |
1987 | return strtoull(arg->atom.atom, NULL, 0); | |
1988 | case PRINT_FIELD: | |
1989 | if (!arg->field.field) { | |
1990 | arg->field.field = find_any_field(event, arg->field.name); | |
1991 | if (!arg->field.field) | |
1992 | die("field %s not found", arg->field.name); | |
1993 | } | |
1994 | /* must be a number */ | |
1995 | val = read_size(data + arg->field.field->offset, | |
1996 | arg->field.field->size); | |
1997 | break; | |
1998 | case PRINT_FLAGS: | |
1999 | case PRINT_SYMBOL: | |
2000 | break; | |
2001 | case PRINT_TYPE: | |
2002 | return eval_num_arg(data, size, event, arg->typecast.item); | |
2003 | case PRINT_STRING: | |
2004 | return 0; | |
2005 | break; | |
2006 | case PRINT_OP: | |
0959b8d6 SR |
2007 | if (strcmp(arg->op.op, "[") == 0) { |
2008 | /* | |
2009 | * Arrays are special, since we don't want | |
2010 | * to read the arg as is. | |
2011 | */ | |
2012 | if (arg->op.left->type != PRINT_FIELD) | |
2013 | goto default_op; /* oops, all bets off */ | |
2014 | larg = arg->op.left; | |
2015 | if (!larg->field.field) { | |
2016 | larg->field.field = | |
2017 | find_any_field(event, larg->field.name); | |
2018 | if (!larg->field.field) | |
2019 | die("field %s not found", larg->field.name); | |
2020 | } | |
2021 | right = eval_num_arg(data, size, event, arg->op.right); | |
2022 | val = read_size(data + larg->field.field->offset + | |
2023 | right * long_size, long_size); | |
2024 | break; | |
2025 | } | |
2026 | default_op: | |
ea4010d1 SR |
2027 | left = eval_num_arg(data, size, event, arg->op.left); |
2028 | right = eval_num_arg(data, size, event, arg->op.right); | |
2029 | switch (arg->op.op[0]) { | |
2030 | case '|': | |
2031 | if (arg->op.op[1]) | |
2032 | val = left || right; | |
2033 | else | |
2034 | val = left | right; | |
2035 | break; | |
2036 | case '&': | |
2037 | if (arg->op.op[1]) | |
2038 | val = left && right; | |
2039 | else | |
2040 | val = left & right; | |
2041 | break; | |
2042 | case '<': | |
2043 | switch (arg->op.op[1]) { | |
2044 | case 0: | |
2045 | val = left < right; | |
2046 | break; | |
2047 | case '<': | |
2048 | val = left << right; | |
2049 | break; | |
2050 | case '=': | |
2051 | val = left <= right; | |
2052 | break; | |
2053 | default: | |
2054 | die("unknown op '%s'", arg->op.op); | |
2055 | } | |
2056 | break; | |
2057 | case '>': | |
2058 | switch (arg->op.op[1]) { | |
2059 | case 0: | |
2060 | val = left > right; | |
2061 | break; | |
2062 | case '>': | |
2063 | val = left >> right; | |
2064 | break; | |
2065 | case '=': | |
2066 | val = left >= right; | |
2067 | break; | |
2068 | default: | |
2069 | die("unknown op '%s'", arg->op.op); | |
2070 | } | |
2071 | break; | |
2072 | case '=': | |
2073 | if (arg->op.op[1] != '=') | |
2074 | die("unknown op '%s'", arg->op.op); | |
2075 | val = left == right; | |
2076 | break; | |
2077 | default: | |
2078 | die("unknown op '%s'", arg->op.op); | |
2079 | } | |
2080 | break; | |
2081 | default: /* not sure what to do there */ | |
2082 | return 0; | |
2083 | } | |
2084 | return val; | |
2085 | } | |
2086 | ||
2087 | struct flag { | |
2088 | const char *name; | |
2089 | unsigned long long value; | |
2090 | }; | |
2091 | ||
2092 | static const struct flag flags[] = { | |
2093 | { "HI_SOFTIRQ", 0 }, | |
2094 | { "TIMER_SOFTIRQ", 1 }, | |
2095 | { "NET_TX_SOFTIRQ", 2 }, | |
2096 | { "NET_RX_SOFTIRQ", 3 }, | |
2097 | { "BLOCK_SOFTIRQ", 4 }, | |
b934cdd5 TZ |
2098 | { "BLOCK_IOPOLL_SOFTIRQ", 5 }, |
2099 | { "TASKLET_SOFTIRQ", 6 }, | |
2100 | { "SCHED_SOFTIRQ", 7 }, | |
2101 | { "HRTIMER_SOFTIRQ", 8 }, | |
2102 | { "RCU_SOFTIRQ", 9 }, | |
ea4010d1 SR |
2103 | |
2104 | { "HRTIMER_NORESTART", 0 }, | |
2105 | { "HRTIMER_RESTART", 1 }, | |
2106 | }; | |
2107 | ||
2108 | static unsigned long long eval_flag(const char *flag) | |
2109 | { | |
2110 | int i; | |
2111 | ||
2112 | /* | |
2113 | * Some flags in the format files do not get converted. | |
2114 | * If the flag is not numeric, see if it is something that | |
2115 | * we already know about. | |
2116 | */ | |
2117 | if (isdigit(flag[0])) | |
2118 | return strtoull(flag, NULL, 0); | |
2119 | ||
2120 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) | |
2121 | if (strcmp(flags[i].name, flag) == 0) | |
2122 | return flags[i].value; | |
2123 | ||
2124 | return 0; | |
2125 | } | |
2126 | ||
2127 | static void print_str_arg(void *data, int size, | |
2128 | struct event *event, struct print_arg *arg) | |
2129 | { | |
2130 | struct print_flag_sym *flag; | |
2131 | unsigned long long val, fval; | |
2132 | char *str; | |
2133 | int print; | |
2134 | ||
2135 | switch (arg->type) { | |
2136 | case PRINT_NULL: | |
2137 | /* ?? */ | |
2138 | return; | |
2139 | case PRINT_ATOM: | |
2140 | printf("%s", arg->atom.atom); | |
2141 | return; | |
2142 | case PRINT_FIELD: | |
2143 | if (!arg->field.field) { | |
2144 | arg->field.field = find_any_field(event, arg->field.name); | |
2145 | if (!arg->field.field) | |
2146 | die("field %s not found", arg->field.name); | |
2147 | } | |
2148 | str = malloc_or_die(arg->field.field->size + 1); | |
2149 | memcpy(str, data + arg->field.field->offset, | |
2150 | arg->field.field->size); | |
2151 | str[arg->field.field->size] = 0; | |
d498bc1f | 2152 | printf("%s", str); |
ea4010d1 SR |
2153 | free(str); |
2154 | break; | |
2155 | case PRINT_FLAGS: | |
2156 | val = eval_num_arg(data, size, event, arg->flags.field); | |
2157 | print = 0; | |
2158 | for (flag = arg->flags.flags; flag; flag = flag->next) { | |
2159 | fval = eval_flag(flag->value); | |
2160 | if (!val && !fval) { | |
2161 | printf("%s", flag->str); | |
2162 | break; | |
2163 | } | |
2164 | if (fval && (val & fval) == fval) { | |
2165 | if (print && arg->flags.delim) | |
2166 | printf("%s", arg->flags.delim); | |
2167 | printf("%s", flag->str); | |
2168 | print = 1; | |
2169 | val &= ~fval; | |
2170 | } | |
2171 | } | |
2172 | break; | |
2173 | case PRINT_SYMBOL: | |
2174 | val = eval_num_arg(data, size, event, arg->symbol.field); | |
2175 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { | |
2176 | fval = eval_flag(flag->value); | |
2177 | if (val == fval) { | |
2178 | printf("%s", flag->str); | |
2179 | break; | |
2180 | } | |
2181 | } | |
2182 | break; | |
2183 | ||
2184 | case PRINT_TYPE: | |
2185 | break; | |
561f732c FW |
2186 | case PRINT_STRING: { |
2187 | int str_offset; | |
2188 | ||
2189 | if (arg->string.offset == -1) { | |
2190 | struct format_field *f; | |
2191 | ||
2192 | f = find_any_field(event, arg->string.string); | |
2193 | arg->string.offset = f->offset; | |
2194 | } | |
2195 | str_offset = *(int *)(data + arg->string.offset); | |
2196 | str_offset &= 0xffff; | |
2197 | printf("%s", ((char *)data) + str_offset); | |
ea4010d1 | 2198 | break; |
561f732c | 2199 | } |
ea4010d1 SR |
2200 | case PRINT_OP: |
2201 | /* | |
2202 | * The only op for string should be ? : | |
2203 | */ | |
2204 | if (arg->op.op[0] != '?') | |
2205 | return; | |
2206 | val = eval_num_arg(data, size, event, arg->op.left); | |
2207 | if (val) | |
2208 | print_str_arg(data, size, event, arg->op.right->op.left); | |
2209 | else | |
2210 | print_str_arg(data, size, event, arg->op.right->op.right); | |
2211 | break; | |
2212 | default: | |
2213 | /* well... */ | |
2214 | break; | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) | |
2219 | { | |
2220 | static struct format_field *field, *ip_field; | |
2221 | struct print_arg *args, *arg, **next; | |
2222 | unsigned long long ip, val; | |
2223 | char *ptr; | |
2224 | void *bptr; | |
2225 | ||
2226 | if (!field) { | |
2227 | field = find_field(event, "buf"); | |
2228 | if (!field) | |
2229 | die("can't find buffer field for binary printk"); | |
2230 | ip_field = find_field(event, "ip"); | |
2231 | if (!ip_field) | |
2232 | die("can't find ip field for binary printk"); | |
2233 | } | |
2234 | ||
2235 | ip = read_size(data + ip_field->offset, ip_field->size); | |
2236 | ||
2237 | /* | |
2238 | * The first arg is the IP pointer. | |
2239 | */ | |
2240 | args = malloc_or_die(sizeof(*args)); | |
2241 | arg = args; | |
2242 | arg->next = NULL; | |
2243 | next = &arg->next; | |
2244 | ||
2245 | arg->type = PRINT_ATOM; | |
2246 | arg->atom.atom = malloc_or_die(32); | |
2247 | sprintf(arg->atom.atom, "%lld", ip); | |
2248 | ||
2249 | /* skip the first "%pf : " */ | |
2250 | for (ptr = fmt + 6, bptr = data + field->offset; | |
2251 | bptr < data + size && *ptr; ptr++) { | |
2252 | int ls = 0; | |
2253 | ||
2254 | if (*ptr == '%') { | |
2255 | process_again: | |
2256 | ptr++; | |
2257 | switch (*ptr) { | |
2258 | case '%': | |
2259 | break; | |
2260 | case 'l': | |
2261 | ls++; | |
2262 | goto process_again; | |
2263 | case 'L': | |
2264 | ls = 2; | |
2265 | goto process_again; | |
2266 | case '0' ... '9': | |
2267 | goto process_again; | |
2268 | case 'p': | |
2269 | ls = 1; | |
2270 | /* fall through */ | |
2271 | case 'd': | |
2272 | case 'u': | |
2273 | case 'x': | |
2274 | case 'i': | |
ffa18955 SR |
2275 | /* the pointers are always 4 bytes aligned */ |
2276 | bptr = (void *)(((unsigned long)bptr + 3) & | |
2277 | ~3); | |
ea4010d1 SR |
2278 | switch (ls) { |
2279 | case 0: | |
2280 | case 1: | |
2281 | ls = long_size; | |
2282 | break; | |
2283 | case 2: | |
2284 | ls = 8; | |
2285 | default: | |
2286 | break; | |
2287 | } | |
2288 | val = read_size(bptr, ls); | |
2289 | bptr += ls; | |
2290 | arg = malloc_or_die(sizeof(*arg)); | |
2291 | arg->next = NULL; | |
2292 | arg->type = PRINT_ATOM; | |
2293 | arg->atom.atom = malloc_or_die(32); | |
2294 | sprintf(arg->atom.atom, "%lld", val); | |
2295 | *next = arg; | |
2296 | next = &arg->next; | |
2297 | break; | |
2298 | case 's': | |
2299 | arg = malloc_or_die(sizeof(*arg)); | |
2300 | arg->next = NULL; | |
2301 | arg->type = PRINT_STRING; | |
2302 | arg->string.string = strdup(bptr); | |
2303 | bptr += strlen(bptr) + 1; | |
2304 | *next = arg; | |
2305 | next = &arg->next; | |
2306 | default: | |
2307 | break; | |
2308 | } | |
2309 | } | |
2310 | } | |
2311 | ||
2312 | return args; | |
2313 | } | |
2314 | ||
2315 | static void free_args(struct print_arg *args) | |
2316 | { | |
2317 | struct print_arg *next; | |
2318 | ||
2319 | while (args) { | |
2320 | next = args->next; | |
2321 | ||
2322 | if (args->type == PRINT_ATOM) | |
2323 | free(args->atom.atom); | |
2324 | else | |
2325 | free(args->string.string); | |
2326 | free(args); | |
2327 | args = next; | |
2328 | } | |
2329 | } | |
2330 | ||
2331 | static char *get_bprint_format(void *data, int size __unused, struct event *event) | |
2332 | { | |
2333 | unsigned long long addr; | |
2334 | static struct format_field *field; | |
2335 | struct printk_map *printk; | |
2336 | char *format; | |
2337 | char *p; | |
2338 | ||
2339 | if (!field) { | |
2340 | field = find_field(event, "fmt"); | |
2341 | if (!field) | |
2342 | die("can't find format field for binary printk"); | |
2343 | printf("field->offset = %d size=%d\n", field->offset, field->size); | |
2344 | } | |
2345 | ||
2346 | addr = read_size(data + field->offset, field->size); | |
2347 | ||
2348 | printk = find_printk(addr); | |
2349 | if (!printk) { | |
2350 | format = malloc_or_die(45); | |
2351 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", | |
2352 | addr); | |
2353 | return format; | |
2354 | } | |
2355 | ||
2356 | p = printk->printk; | |
2357 | /* Remove any quotes. */ | |
2358 | if (*p == '"') | |
2359 | p++; | |
2360 | format = malloc_or_die(strlen(p) + 10); | |
2361 | sprintf(format, "%s : %s", "%pf", p); | |
2362 | /* remove ending quotes and new line since we will add one too */ | |
2363 | p = format + strlen(format) - 1; | |
2364 | if (*p == '"') | |
2365 | *p = 0; | |
2366 | ||
2367 | p -= 2; | |
2368 | if (strcmp(p, "\\n") == 0) | |
2369 | *p = 0; | |
2370 | ||
2371 | return format; | |
2372 | } | |
2373 | ||
2374 | static void pretty_print(void *data, int size, struct event *event) | |
2375 | { | |
2376 | struct print_fmt *print_fmt = &event->print_fmt; | |
2377 | struct print_arg *arg = print_fmt->args; | |
2378 | struct print_arg *args = NULL; | |
2379 | const char *ptr = print_fmt->format; | |
2380 | unsigned long long val; | |
2381 | struct func_map *func; | |
2382 | const char *saveptr; | |
2383 | char *bprint_fmt = NULL; | |
2384 | char format[32]; | |
2385 | int show_func; | |
2386 | int len; | |
2387 | int ls; | |
2388 | ||
2389 | if (event->flags & EVENT_FL_ISFUNC) | |
2390 | ptr = " %pF <-- %pF"; | |
2391 | ||
2392 | if (event->flags & EVENT_FL_ISBPRINT) { | |
2393 | bprint_fmt = get_bprint_format(data, size, event); | |
2394 | args = make_bprint_args(bprint_fmt, data, size, event); | |
2395 | arg = args; | |
2396 | ptr = bprint_fmt; | |
2397 | } | |
2398 | ||
2399 | for (; *ptr; ptr++) { | |
2400 | ls = 0; | |
91ff2bc1 SR |
2401 | if (*ptr == '\\') { |
2402 | ptr++; | |
2403 | switch (*ptr) { | |
2404 | case 'n': | |
2405 | printf("\n"); | |
2406 | break; | |
2407 | case 't': | |
2408 | printf("\t"); | |
2409 | break; | |
2410 | case 'r': | |
2411 | printf("\r"); | |
2412 | break; | |
2413 | case '\\': | |
2414 | printf("\\"); | |
2415 | break; | |
2416 | default: | |
2417 | printf("%c", *ptr); | |
2418 | break; | |
2419 | } | |
2420 | ||
2421 | } else if (*ptr == '%') { | |
ea4010d1 SR |
2422 | saveptr = ptr; |
2423 | show_func = 0; | |
2424 | cont_process: | |
2425 | ptr++; | |
2426 | switch (*ptr) { | |
2427 | case '%': | |
2428 | printf("%%"); | |
2429 | break; | |
2430 | case 'l': | |
2431 | ls++; | |
2432 | goto cont_process; | |
2433 | case 'L': | |
2434 | ls = 2; | |
2435 | goto cont_process; | |
2436 | case 'z': | |
2437 | case 'Z': | |
2438 | case '0' ... '9': | |
2439 | goto cont_process; | |
2440 | case 'p': | |
2441 | if (long_size == 4) | |
2442 | ls = 1; | |
2443 | else | |
2444 | ls = 2; | |
2445 | ||
2446 | if (*(ptr+1) == 'F' || | |
2447 | *(ptr+1) == 'f') { | |
2448 | ptr++; | |
2449 | show_func = *ptr; | |
2450 | } | |
2451 | ||
2452 | /* fall through */ | |
2453 | case 'd': | |
2454 | case 'i': | |
2455 | case 'x': | |
2456 | case 'X': | |
2457 | case 'u': | |
2458 | if (!arg) | |
2459 | die("no argument match"); | |
2460 | ||
2461 | len = ((unsigned long)ptr + 1) - | |
2462 | (unsigned long)saveptr; | |
2463 | ||
2464 | /* should never happen */ | |
2465 | if (len > 32) | |
2466 | die("bad format!"); | |
2467 | ||
2468 | memcpy(format, saveptr, len); | |
2469 | format[len] = 0; | |
2470 | ||
2471 | val = eval_num_arg(data, size, event, arg); | |
2472 | arg = arg->next; | |
2473 | ||
2474 | if (show_func) { | |
2475 | func = find_func(val); | |
2476 | if (func) { | |
2477 | printf("%s", func->func); | |
2478 | if (show_func == 'F') | |
2479 | printf("+0x%llx", | |
2480 | val - func->addr); | |
2481 | break; | |
2482 | } | |
2483 | } | |
2484 | switch (ls) { | |
2485 | case 0: | |
2486 | printf(format, (int)val); | |
2487 | break; | |
2488 | case 1: | |
2489 | printf(format, (long)val); | |
2490 | break; | |
2491 | case 2: | |
2492 | printf(format, (long long)val); | |
2493 | break; | |
2494 | default: | |
2495 | die("bad count (%d)", ls); | |
2496 | } | |
2497 | break; | |
2498 | case 's': | |
2499 | if (!arg) | |
2500 | die("no matching argument"); | |
2501 | ||
2502 | print_str_arg(data, size, event, arg); | |
2503 | arg = arg->next; | |
2504 | break; | |
2505 | default: | |
2506 | printf(">%c<", *ptr); | |
2507 | ||
2508 | } | |
2509 | } else | |
2510 | printf("%c", *ptr); | |
2511 | } | |
2512 | ||
2513 | if (args) { | |
2514 | free_args(args); | |
2515 | free(bprint_fmt); | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | static inline int log10_cpu(int nb) | |
2520 | { | |
2521 | if (nb / 100) | |
2522 | return 3; | |
2523 | if (nb / 10) | |
2524 | return 2; | |
2525 | return 1; | |
2526 | } | |
2527 | ||
2528 | /* taken from Linux, written by Frederic Weisbecker */ | |
2529 | static void print_graph_cpu(int cpu) | |
2530 | { | |
2531 | int i; | |
2532 | int log10_this = log10_cpu(cpu); | |
2533 | int log10_all = log10_cpu(cpus); | |
2534 | ||
2535 | ||
2536 | /* | |
2537 | * Start with a space character - to make it stand out | |
2538 | * to the right a bit when trace output is pasted into | |
2539 | * email: | |
2540 | */ | |
2541 | printf(" "); | |
2542 | ||
2543 | /* | |
2544 | * Tricky - we space the CPU field according to the max | |
2545 | * number of online CPUs. On a 2-cpu system it would take | |
2546 | * a maximum of 1 digit - on a 128 cpu system it would | |
2547 | * take up to 3 digits: | |
2548 | */ | |
2549 | for (i = 0; i < log10_all - log10_this; i++) | |
2550 | printf(" "); | |
2551 | ||
2552 | printf("%d) ", cpu); | |
2553 | } | |
2554 | ||
2555 | #define TRACE_GRAPH_PROCINFO_LENGTH 14 | |
2556 | #define TRACE_GRAPH_INDENT 2 | |
2557 | ||
2558 | static void print_graph_proc(int pid, const char *comm) | |
2559 | { | |
2560 | /* sign + log10(MAX_INT) + '\0' */ | |
2561 | char pid_str[11]; | |
2562 | int spaces = 0; | |
2563 | int len; | |
2564 | int i; | |
2565 | ||
2566 | sprintf(pid_str, "%d", pid); | |
2567 | ||
2568 | /* 1 stands for the "-" character */ | |
2569 | len = strlen(comm) + strlen(pid_str) + 1; | |
2570 | ||
2571 | if (len < TRACE_GRAPH_PROCINFO_LENGTH) | |
2572 | spaces = TRACE_GRAPH_PROCINFO_LENGTH - len; | |
2573 | ||
2574 | /* First spaces to align center */ | |
2575 | for (i = 0; i < spaces / 2; i++) | |
2576 | printf(" "); | |
2577 | ||
2578 | printf("%s-%s", comm, pid_str); | |
2579 | ||
2580 | /* Last spaces to align center */ | |
2581 | for (i = 0; i < spaces - (spaces / 2); i++) | |
2582 | printf(" "); | |
2583 | } | |
2584 | ||
2585 | static struct record * | |
2586 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, | |
2587 | struct record *next) | |
2588 | { | |
2589 | struct format_field *field; | |
2590 | struct event *event; | |
2591 | unsigned long val; | |
2592 | int type; | |
2593 | int pid; | |
2594 | ||
ec156764 IM |
2595 | type = trace_parse_common_type(next->data); |
2596 | event = trace_find_event(type); | |
ea4010d1 SR |
2597 | if (!event) |
2598 | return NULL; | |
2599 | ||
2600 | if (!(event->flags & EVENT_FL_ISFUNCRET)) | |
2601 | return NULL; | |
2602 | ||
2603 | pid = parse_common_pid(next->data); | |
2604 | field = find_field(event, "func"); | |
2605 | if (!field) | |
2606 | die("function return does not have field func"); | |
2607 | ||
2608 | val = read_size(next->data + field->offset, field->size); | |
2609 | ||
2610 | if (cur_pid != pid || cur_func != val) | |
2611 | return NULL; | |
2612 | ||
2613 | /* this is a leaf, now advance the iterator */ | |
2614 | return trace_read_data(cpu); | |
2615 | } | |
2616 | ||
2617 | /* Signal a overhead of time execution to the output */ | |
2618 | static void print_graph_overhead(unsigned long long duration) | |
2619 | { | |
2620 | /* Non nested entry or return */ | |
2621 | if (duration == ~0ULL) | |
2622 | return (void)printf(" "); | |
2623 | ||
2624 | /* Duration exceeded 100 msecs */ | |
2625 | if (duration > 100000ULL) | |
2626 | return (void)printf("! "); | |
2627 | ||
2628 | /* Duration exceeded 10 msecs */ | |
2629 | if (duration > 10000ULL) | |
2630 | return (void)printf("+ "); | |
2631 | ||
2632 | printf(" "); | |
2633 | } | |
2634 | ||
2635 | static void print_graph_duration(unsigned long long duration) | |
2636 | { | |
2637 | unsigned long usecs = duration / 1000; | |
2638 | unsigned long nsecs_rem = duration % 1000; | |
2639 | /* log10(ULONG_MAX) + '\0' */ | |
2640 | char msecs_str[21]; | |
2641 | char nsecs_str[5]; | |
2642 | int len; | |
2643 | int i; | |
2644 | ||
2645 | sprintf(msecs_str, "%lu", usecs); | |
2646 | ||
2647 | /* Print msecs */ | |
2648 | len = printf("%lu", usecs); | |
2649 | ||
2650 | /* Print nsecs (we don't want to exceed 7 numbers) */ | |
2651 | if (len < 7) { | |
2652 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); | |
2653 | len += printf(".%s", nsecs_str); | |
2654 | } | |
2655 | ||
2656 | printf(" us "); | |
2657 | ||
2658 | /* Print remaining spaces to fit the row's width */ | |
2659 | for (i = len; i < 7; i++) | |
2660 | printf(" "); | |
2661 | ||
2662 | printf("| "); | |
2663 | } | |
2664 | ||
2665 | static void | |
2666 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) | |
2667 | { | |
2668 | unsigned long long rettime, calltime; | |
2669 | unsigned long long duration, depth; | |
2670 | unsigned long long val; | |
2671 | struct format_field *field; | |
2672 | struct func_map *func; | |
2673 | struct event *ret_event; | |
2674 | int type; | |
2675 | int i; | |
2676 | ||
ec156764 IM |
2677 | type = trace_parse_common_type(ret_rec->data); |
2678 | ret_event = trace_find_event(type); | |
ea4010d1 SR |
2679 | |
2680 | field = find_field(ret_event, "rettime"); | |
2681 | if (!field) | |
2682 | die("can't find rettime in return graph"); | |
2683 | rettime = read_size(ret_rec->data + field->offset, field->size); | |
2684 | ||
2685 | field = find_field(ret_event, "calltime"); | |
2686 | if (!field) | |
2687 | die("can't find rettime in return graph"); | |
2688 | calltime = read_size(ret_rec->data + field->offset, field->size); | |
2689 | ||
2690 | duration = rettime - calltime; | |
2691 | ||
2692 | /* Overhead */ | |
2693 | print_graph_overhead(duration); | |
2694 | ||
2695 | /* Duration */ | |
2696 | print_graph_duration(duration); | |
2697 | ||
2698 | field = find_field(event, "depth"); | |
2699 | if (!field) | |
2700 | die("can't find depth in entry graph"); | |
2701 | depth = read_size(data + field->offset, field->size); | |
2702 | ||
2703 | /* Function */ | |
2704 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2705 | printf(" "); | |
2706 | ||
2707 | field = find_field(event, "func"); | |
2708 | if (!field) | |
2709 | die("can't find func in entry graph"); | |
2710 | val = read_size(data + field->offset, field->size); | |
2711 | func = find_func(val); | |
2712 | ||
2713 | if (func) | |
2714 | printf("%s();", func->func); | |
2715 | else | |
2716 | printf("%llx();", val); | |
2717 | } | |
2718 | ||
2719 | static void print_graph_nested(struct event *event, void *data) | |
2720 | { | |
2721 | struct format_field *field; | |
2722 | unsigned long long depth; | |
2723 | unsigned long long val; | |
2724 | struct func_map *func; | |
2725 | int i; | |
2726 | ||
2727 | /* No overhead */ | |
2728 | print_graph_overhead(-1); | |
2729 | ||
2730 | /* No time */ | |
2731 | printf(" | "); | |
2732 | ||
2733 | field = find_field(event, "depth"); | |
2734 | if (!field) | |
2735 | die("can't find depth in entry graph"); | |
2736 | depth = read_size(data + field->offset, field->size); | |
2737 | ||
2738 | /* Function */ | |
2739 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2740 | printf(" "); | |
2741 | ||
2742 | field = find_field(event, "func"); | |
2743 | if (!field) | |
2744 | die("can't find func in entry graph"); | |
2745 | val = read_size(data + field->offset, field->size); | |
2746 | func = find_func(val); | |
2747 | ||
2748 | if (func) | |
2749 | printf("%s() {", func->func); | |
2750 | else | |
2751 | printf("%llx() {", val); | |
2752 | } | |
2753 | ||
2754 | static void | |
2755 | pretty_print_func_ent(void *data, int size, struct event *event, | |
2756 | int cpu, int pid, const char *comm, | |
2757 | unsigned long secs, unsigned long usecs) | |
2758 | { | |
2759 | struct format_field *field; | |
2760 | struct record *rec; | |
2761 | void *copy_data; | |
2762 | unsigned long val; | |
2763 | ||
2764 | printf("%5lu.%06lu | ", secs, usecs); | |
2765 | ||
2766 | print_graph_cpu(cpu); | |
2767 | print_graph_proc(pid, comm); | |
2768 | ||
2769 | printf(" | "); | |
2770 | ||
2771 | field = find_field(event, "func"); | |
2772 | if (!field) | |
2773 | die("function entry does not have func field"); | |
2774 | ||
2775 | val = read_size(data + field->offset, field->size); | |
2776 | ||
2777 | /* | |
2778 | * peek_data may unmap the data pointer. Copy it first. | |
2779 | */ | |
2780 | copy_data = malloc_or_die(size); | |
2781 | memcpy(copy_data, data, size); | |
2782 | data = copy_data; | |
2783 | ||
2784 | rec = trace_peek_data(cpu); | |
2785 | if (rec) { | |
2786 | rec = get_return_for_leaf(cpu, pid, val, rec); | |
2787 | if (rec) { | |
2788 | print_graph_entry_leaf(event, data, rec); | |
2789 | goto out_free; | |
2790 | } | |
2791 | } | |
2792 | print_graph_nested(event, data); | |
2793 | out_free: | |
2794 | free(data); | |
2795 | } | |
2796 | ||
2797 | static void | |
2798 | pretty_print_func_ret(void *data, int size __unused, struct event *event, | |
2799 | int cpu, int pid, const char *comm, | |
2800 | unsigned long secs, unsigned long usecs) | |
2801 | { | |
2802 | unsigned long long rettime, calltime; | |
2803 | unsigned long long duration, depth; | |
2804 | struct format_field *field; | |
2805 | int i; | |
2806 | ||
2807 | printf("%5lu.%06lu | ", secs, usecs); | |
2808 | ||
2809 | print_graph_cpu(cpu); | |
2810 | print_graph_proc(pid, comm); | |
2811 | ||
2812 | printf(" | "); | |
2813 | ||
2814 | field = find_field(event, "rettime"); | |
2815 | if (!field) | |
2816 | die("can't find rettime in return graph"); | |
2817 | rettime = read_size(data + field->offset, field->size); | |
2818 | ||
2819 | field = find_field(event, "calltime"); | |
2820 | if (!field) | |
2821 | die("can't find calltime in return graph"); | |
2822 | calltime = read_size(data + field->offset, field->size); | |
2823 | ||
2824 | duration = rettime - calltime; | |
2825 | ||
2826 | /* Overhead */ | |
2827 | print_graph_overhead(duration); | |
2828 | ||
2829 | /* Duration */ | |
2830 | print_graph_duration(duration); | |
2831 | ||
2832 | field = find_field(event, "depth"); | |
2833 | if (!field) | |
2834 | die("can't find depth in entry graph"); | |
2835 | depth = read_size(data + field->offset, field->size); | |
2836 | ||
2837 | /* Function */ | |
2838 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) | |
2839 | printf(" "); | |
2840 | ||
2841 | printf("}"); | |
2842 | } | |
2843 | ||
2844 | static void | |
2845 | pretty_print_func_graph(void *data, int size, struct event *event, | |
2846 | int cpu, int pid, const char *comm, | |
2847 | unsigned long secs, unsigned long usecs) | |
2848 | { | |
2849 | if (event->flags & EVENT_FL_ISFUNCENT) | |
2850 | pretty_print_func_ent(data, size, event, | |
2851 | cpu, pid, comm, secs, usecs); | |
2852 | else if (event->flags & EVENT_FL_ISFUNCRET) | |
2853 | pretty_print_func_ret(data, size, event, | |
2854 | cpu, pid, comm, secs, usecs); | |
2855 | printf("\n"); | |
2856 | } | |
2857 | ||
2858 | void print_event(int cpu, void *data, int size, unsigned long long nsecs, | |
2859 | char *comm) | |
2860 | { | |
2861 | struct event *event; | |
2862 | unsigned long secs; | |
2863 | unsigned long usecs; | |
2864 | int type; | |
2865 | int pid; | |
2866 | ||
2867 | secs = nsecs / NSECS_PER_SEC; | |
2868 | nsecs -= secs * NSECS_PER_SEC; | |
2869 | usecs = nsecs / NSECS_PER_USEC; | |
2870 | ||
ec156764 | 2871 | type = trace_parse_common_type(data); |
ea4010d1 | 2872 | |
ec156764 | 2873 | event = trace_find_event(type); |
ea57c4f5 | 2874 | if (!event) { |
07a4bddd | 2875 | warning("ug! no event found for type %d", type); |
ea57c4f5 IM |
2876 | return; |
2877 | } | |
ea4010d1 SR |
2878 | |
2879 | pid = parse_common_pid(data); | |
2880 | ||
2881 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) | |
2882 | return pretty_print_func_graph(data, size, event, cpu, | |
2883 | pid, comm, secs, usecs); | |
2884 | ||
00fc9786 | 2885 | printf("%16s-%-5d [%03d] %5lu.%09Lu: %s: ", |
ea4010d1 | 2886 | comm, pid, cpu, |
00fc9786 | 2887 | secs, nsecs, event->name); |
ea4010d1 | 2888 | |
07a4bddd SR |
2889 | if (event->flags & EVENT_FL_FAILED) { |
2890 | printf("EVENT '%s' FAILED TO PARSE\n", | |
2891 | event->name); | |
2892 | return; | |
2893 | } | |
2894 | ||
ea4010d1 SR |
2895 | pretty_print(data, size, event); |
2896 | printf("\n"); | |
2897 | } | |
2898 | ||
2899 | static void print_fields(struct print_flag_sym *field) | |
2900 | { | |
2901 | printf("{ %s, %s }", field->value, field->str); | |
2902 | if (field->next) { | |
2903 | printf(", "); | |
2904 | print_fields(field->next); | |
2905 | } | |
2906 | } | |
2907 | ||
2908 | static void print_args(struct print_arg *args) | |
2909 | { | |
2910 | int print_paren = 1; | |
2911 | ||
2912 | switch (args->type) { | |
2913 | case PRINT_NULL: | |
2914 | printf("null"); | |
2915 | break; | |
2916 | case PRINT_ATOM: | |
2917 | printf("%s", args->atom.atom); | |
2918 | break; | |
2919 | case PRINT_FIELD: | |
2920 | printf("REC->%s", args->field.name); | |
2921 | break; | |
2922 | case PRINT_FLAGS: | |
2923 | printf("__print_flags("); | |
2924 | print_args(args->flags.field); | |
2925 | printf(", %s, ", args->flags.delim); | |
2926 | print_fields(args->flags.flags); | |
2927 | printf(")"); | |
2928 | break; | |
2929 | case PRINT_SYMBOL: | |
2930 | printf("__print_symbolic("); | |
2931 | print_args(args->symbol.field); | |
2932 | printf(", "); | |
2933 | print_fields(args->symbol.symbols); | |
2934 | printf(")"); | |
2935 | break; | |
2936 | case PRINT_STRING: | |
2937 | printf("__get_str(%s)", args->string.string); | |
2938 | break; | |
2939 | case PRINT_TYPE: | |
2940 | printf("(%s)", args->typecast.type); | |
2941 | print_args(args->typecast.item); | |
2942 | break; | |
2943 | case PRINT_OP: | |
2944 | if (strcmp(args->op.op, ":") == 0) | |
2945 | print_paren = 0; | |
2946 | if (print_paren) | |
2947 | printf("("); | |
2948 | print_args(args->op.left); | |
2949 | printf(" %s ", args->op.op); | |
2950 | print_args(args->op.right); | |
2951 | if (print_paren) | |
2952 | printf(")"); | |
2953 | break; | |
2954 | default: | |
2955 | /* we should warn... */ | |
2956 | return; | |
2957 | } | |
2958 | if (args->next) { | |
2959 | printf("\n"); | |
2960 | print_args(args->next); | |
2961 | } | |
2962 | } | |
2963 | ||
13999e59 | 2964 | static void parse_header_field(char *field, |
ea4010d1 SR |
2965 | int *offset, int *size) |
2966 | { | |
2967 | char *token; | |
13999e59 | 2968 | int type; |
ea4010d1 SR |
2969 | |
2970 | if (read_expected(EVENT_ITEM, (char *)"field") < 0) | |
2971 | return; | |
2972 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2973 | return; | |
13999e59 | 2974 | |
ea4010d1 SR |
2975 | /* type */ |
2976 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 2977 | goto fail; |
ea4010d1 SR |
2978 | free_token(token); |
2979 | ||
13999e59 | 2980 | if (read_expected(EVENT_ITEM, field) < 0) |
ea4010d1 SR |
2981 | return; |
2982 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2983 | return; | |
2984 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) | |
2985 | return; | |
2986 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2987 | return; | |
2988 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 2989 | goto fail; |
ea4010d1 SR |
2990 | *offset = atoi(token); |
2991 | free_token(token); | |
2992 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
2993 | return; | |
2994 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) | |
2995 | return; | |
2996 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
2997 | return; | |
2998 | if (read_expect_type(EVENT_ITEM, &token) < 0) | |
13999e59 | 2999 | goto fail; |
ea4010d1 SR |
3000 | *size = atoi(token); |
3001 | free_token(token); | |
26a50744 TZ |
3002 | if (read_expected(EVENT_OP, (char *)";") < 0) |
3003 | return; | |
13999e59 SR |
3004 | type = read_token(&token); |
3005 | if (type != EVENT_NEWLINE) { | |
3006 | /* newer versions of the kernel have a "signed" type */ | |
3007 | if (type != EVENT_ITEM) | |
3008 | goto fail; | |
3009 | ||
3010 | if (strcmp(token, (char *)"signed") != 0) | |
3011 | goto fail; | |
3012 | ||
3013 | free_token(token); | |
3014 | ||
3015 | if (read_expected(EVENT_OP, (char *)":") < 0) | |
3016 | return; | |
3017 | ||
3018 | if (read_expect_type(EVENT_ITEM, &token)) | |
3019 | goto fail; | |
3020 | ||
3021 | free_token(token); | |
3022 | if (read_expected(EVENT_OP, (char *)";") < 0) | |
3023 | return; | |
3024 | ||
3025 | if (read_expect_type(EVENT_NEWLINE, &token)) | |
3026 | goto fail; | |
3027 | } | |
3028 | fail: | |
ea4010d1 SR |
3029 | free_token(token); |
3030 | } | |
3031 | ||
3032 | int parse_header_page(char *buf, unsigned long size) | |
3033 | { | |
3034 | init_input_buf(buf, size); | |
3035 | ||
3036 | parse_header_field((char *)"timestamp", &header_page_ts_offset, | |
3037 | &header_page_ts_size); | |
3038 | parse_header_field((char *)"commit", &header_page_size_offset, | |
3039 | &header_page_size_size); | |
3040 | parse_header_field((char *)"data", &header_page_data_offset, | |
3041 | &header_page_data_size); | |
3042 | ||
3043 | return 0; | |
3044 | } | |
3045 | ||
3046 | int parse_ftrace_file(char *buf, unsigned long size) | |
3047 | { | |
3048 | struct format_field *field; | |
3049 | struct print_arg *arg, **list; | |
3050 | struct event *event; | |
3051 | int ret; | |
3052 | ||
3053 | init_input_buf(buf, size); | |
3054 | ||
3055 | event = alloc_event(); | |
3056 | if (!event) | |
3057 | return -ENOMEM; | |
3058 | ||
3059 | event->flags |= EVENT_FL_ISFTRACE; | |
3060 | ||
3061 | event->name = event_read_name(); | |
3062 | if (!event->name) | |
3063 | die("failed to read ftrace event name"); | |
3064 | ||
3065 | if (strcmp(event->name, "function") == 0) | |
3066 | event->flags |= EVENT_FL_ISFUNC; | |
3067 | ||
3068 | else if (strcmp(event->name, "funcgraph_entry") == 0) | |
3069 | event->flags |= EVENT_FL_ISFUNCENT; | |
3070 | ||
3071 | else if (strcmp(event->name, "funcgraph_exit") == 0) | |
3072 | event->flags |= EVENT_FL_ISFUNCRET; | |
3073 | ||
3074 | else if (strcmp(event->name, "bprint") == 0) | |
3075 | event->flags |= EVENT_FL_ISBPRINT; | |
3076 | ||
3077 | event->id = event_read_id(); | |
3078 | if (event->id < 0) | |
3079 | die("failed to read ftrace event id"); | |
3080 | ||
3081 | add_event(event); | |
3082 | ||
3083 | ret = event_read_format(event); | |
3084 | if (ret < 0) | |
3085 | die("failed to read ftrace event format"); | |
3086 | ||
3087 | ret = event_read_print(event); | |
3088 | if (ret < 0) | |
3089 | die("failed to read ftrace event print fmt"); | |
3090 | ||
0d1da915 SR |
3091 | /* New ftrace handles args */ |
3092 | if (ret > 0) | |
3093 | return 0; | |
ea4010d1 SR |
3094 | /* |
3095 | * The arguments for ftrace files are parsed by the fields. | |
3096 | * Set up the fields as their arguments. | |
3097 | */ | |
3098 | list = &event->print_fmt.args; | |
3099 | for (field = event->format.fields; field; field = field->next) { | |
3100 | arg = malloc_or_die(sizeof(*arg)); | |
3101 | memset(arg, 0, sizeof(*arg)); | |
3102 | *list = arg; | |
3103 | list = &arg->next; | |
3104 | arg->type = PRINT_FIELD; | |
3105 | arg->field.name = field->name; | |
3106 | arg->field.field = field; | |
3107 | } | |
3108 | return 0; | |
3109 | } | |
3110 | ||
27746018 | 3111 | int parse_event_file(char *buf, unsigned long size, char *sys) |
ea4010d1 SR |
3112 | { |
3113 | struct event *event; | |
3114 | int ret; | |
3115 | ||
3116 | init_input_buf(buf, size); | |
3117 | ||
3118 | event = alloc_event(); | |
3119 | if (!event) | |
3120 | return -ENOMEM; | |
3121 | ||
3122 | event->name = event_read_name(); | |
3123 | if (!event->name) | |
3124 | die("failed to read event name"); | |
3125 | ||
3126 | event->id = event_read_id(); | |
3127 | if (event->id < 0) | |
3128 | die("failed to read event id"); | |
3129 | ||
3130 | ret = event_read_format(event); | |
07a4bddd SR |
3131 | if (ret < 0) { |
3132 | warning("failed to read event format for %s", event->name); | |
3133 | goto event_failed; | |
3134 | } | |
ea4010d1 SR |
3135 | |
3136 | ret = event_read_print(event); | |
07a4bddd SR |
3137 | if (ret < 0) { |
3138 | warning("failed to read event print fmt for %s", event->name); | |
3139 | goto event_failed; | |
3140 | } | |
ea4010d1 | 3141 | |
27746018 TZ |
3142 | event->system = strdup(sys); |
3143 | ||
ea4010d1 SR |
3144 | #define PRINT_ARGS 0 |
3145 | if (PRINT_ARGS && event->print_fmt.args) | |
3146 | print_args(event->print_fmt.args); | |
3147 | ||
3148 | add_event(event); | |
3149 | return 0; | |
07a4bddd SR |
3150 | |
3151 | event_failed: | |
3152 | event->flags |= EVENT_FL_FAILED; | |
3153 | /* still add it even if it failed */ | |
3154 | add_event(event); | |
3155 | return -1; | |
ea4010d1 SR |
3156 | } |
3157 | ||
3158 | void parse_set_info(int nr_cpus, int long_sz) | |
3159 | { | |
3160 | cpus = nr_cpus; | |
3161 | long_size = long_sz; | |
3162 | } |