Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 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 |
Frederic Weisbecker | 1ef2ed1 | 2009-08-28 03:09:58 +0200 | [diff] [blame] | 32 | #include "../perf.h" |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 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, |
Ingo Molnar | 65014ab | 2009-09-02 14:55:55 +0200 | [diff] [blame] | 93 | (float *)(void *)&item->comm); /* workaround gcc warning */ |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 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", |
Ingo Molnar | 65014ab | 2009-09-02 14:55:55 +0200 | [diff] [blame] | 155 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 156 | &ch, |
Ingo Molnar | 65014ab | 2009-09-02 14:55:55 +0200 | [diff] [blame] | 157 | (float *)(void *)&item->func, |
| 158 | (float *)(void *)&item->mod); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 159 | item->addr = strtoull(addr_str, NULL, 16); |
| 160 | free(addr_str); |
| 161 | |
| 162 | /* truncate the extra ']' */ |
| 163 | if (item->mod) |
| 164 | item->mod[strlen(item->mod) - 1] = 0; |
| 165 | |
| 166 | |
| 167 | item->next = list; |
| 168 | list = item; |
| 169 | line = strtok_r(NULL, "\n", &next); |
| 170 | func_count++; |
| 171 | } |
| 172 | |
| 173 | func_list = malloc_or_die(sizeof(*func_list) * func_count + 1); |
| 174 | |
| 175 | i = 0; |
| 176 | while (list) { |
| 177 | func_list[i].func = list->func; |
| 178 | func_list[i].addr = list->addr; |
| 179 | func_list[i].mod = list->mod; |
| 180 | i++; |
| 181 | item = list; |
| 182 | list = list->next; |
| 183 | free(item); |
| 184 | } |
| 185 | |
| 186 | qsort(func_list, func_count, sizeof(*func_list), func_cmp); |
| 187 | |
| 188 | /* |
| 189 | * Add a special record at the end. |
| 190 | */ |
| 191 | func_list[func_count].func = NULL; |
| 192 | func_list[func_count].addr = 0; |
| 193 | func_list[func_count].mod = NULL; |
| 194 | } |
| 195 | |
| 196 | /* |
| 197 | * We are searching for a record in between, not an exact |
| 198 | * match. |
| 199 | */ |
| 200 | static int func_bcmp(const void *a, const void *b) |
| 201 | { |
| 202 | const struct func_map *fa = a; |
| 203 | const struct func_map *fb = b; |
| 204 | |
| 205 | if ((fa->addr == fb->addr) || |
| 206 | |
| 207 | (fa->addr > fb->addr && |
| 208 | fa->addr < (fb+1)->addr)) |
| 209 | return 0; |
| 210 | |
| 211 | if (fa->addr < fb->addr) |
| 212 | return -1; |
| 213 | |
| 214 | return 1; |
| 215 | } |
| 216 | |
| 217 | static struct func_map *find_func(unsigned long long addr) |
| 218 | { |
| 219 | struct func_map *func; |
| 220 | struct func_map key; |
| 221 | |
| 222 | key.addr = addr; |
| 223 | |
| 224 | func = bsearch(&key, func_list, func_count, sizeof(*func_list), |
| 225 | func_bcmp); |
| 226 | |
| 227 | return func; |
| 228 | } |
| 229 | |
| 230 | void print_funcs(void) |
| 231 | { |
| 232 | int i; |
| 233 | |
| 234 | for (i = 0; i < (int)func_count; i++) { |
| 235 | printf("%016llx %s", |
| 236 | func_list[i].addr, |
| 237 | func_list[i].func); |
| 238 | if (func_list[i].mod) |
| 239 | printf(" [%s]\n", func_list[i].mod); |
| 240 | else |
| 241 | printf("\n"); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | static struct printk_map { |
| 246 | unsigned long long addr; |
| 247 | char *printk; |
| 248 | } *printk_list; |
| 249 | static unsigned int printk_count; |
| 250 | |
| 251 | static int printk_cmp(const void *a, const void *b) |
| 252 | { |
| 253 | const struct func_map *fa = a; |
| 254 | const struct func_map *fb = b; |
| 255 | |
| 256 | if (fa->addr < fb->addr) |
| 257 | return -1; |
| 258 | if (fa->addr > fb->addr) |
| 259 | return 1; |
| 260 | |
| 261 | return 0; |
| 262 | } |
| 263 | |
| 264 | static struct printk_map *find_printk(unsigned long long addr) |
| 265 | { |
| 266 | struct printk_map *printk; |
| 267 | struct printk_map key; |
| 268 | |
| 269 | key.addr = addr; |
| 270 | |
| 271 | printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), |
| 272 | printk_cmp); |
| 273 | |
| 274 | return printk; |
| 275 | } |
| 276 | |
| 277 | void parse_ftrace_printk(char *file, unsigned int size __unused) |
| 278 | { |
| 279 | struct printk_list { |
| 280 | struct printk_list *next; |
| 281 | unsigned long long addr; |
| 282 | char *printk; |
| 283 | } *list = NULL, *item; |
| 284 | char *line; |
| 285 | char *next = NULL; |
| 286 | char *addr_str; |
| 287 | int ret; |
| 288 | int i; |
| 289 | |
| 290 | line = strtok_r(file, "\n", &next); |
| 291 | while (line) { |
| 292 | item = malloc_or_die(sizeof(*item)); |
| 293 | ret = sscanf(line, "%as : %as", |
Ingo Molnar | 65014ab | 2009-09-02 14:55:55 +0200 | [diff] [blame] | 294 | (float *)(void *)&addr_str, /* workaround gcc warning */ |
| 295 | (float *)(void *)&item->printk); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 296 | item->addr = strtoull(addr_str, NULL, 16); |
| 297 | free(addr_str); |
| 298 | |
| 299 | item->next = list; |
| 300 | list = item; |
| 301 | line = strtok_r(NULL, "\n", &next); |
| 302 | printk_count++; |
| 303 | } |
| 304 | |
| 305 | printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); |
| 306 | |
| 307 | i = 0; |
| 308 | while (list) { |
| 309 | printk_list[i].printk = list->printk; |
| 310 | printk_list[i].addr = list->addr; |
| 311 | i++; |
| 312 | item = list; |
| 313 | list = list->next; |
| 314 | free(item); |
| 315 | } |
| 316 | |
| 317 | qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); |
| 318 | } |
| 319 | |
| 320 | void print_printk(void) |
| 321 | { |
| 322 | int i; |
| 323 | |
| 324 | for (i = 0; i < (int)printk_count; i++) { |
| 325 | printf("%016llx %s\n", |
| 326 | printk_list[i].addr, |
| 327 | printk_list[i].printk); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | static struct event *alloc_event(void) |
| 332 | { |
| 333 | struct event *event; |
| 334 | |
| 335 | event = malloc_or_die(sizeof(*event)); |
| 336 | memset(event, 0, sizeof(*event)); |
| 337 | |
| 338 | return event; |
| 339 | } |
| 340 | |
| 341 | enum event_type { |
| 342 | EVENT_ERROR, |
| 343 | EVENT_NONE, |
| 344 | EVENT_SPACE, |
| 345 | EVENT_NEWLINE, |
| 346 | EVENT_OP, |
| 347 | EVENT_DELIM, |
| 348 | EVENT_ITEM, |
| 349 | EVENT_DQUOTE, |
| 350 | EVENT_SQUOTE, |
| 351 | }; |
| 352 | |
| 353 | static struct event *event_list; |
| 354 | |
| 355 | static void add_event(struct event *event) |
| 356 | { |
| 357 | event->next = event_list; |
| 358 | event_list = event; |
| 359 | } |
| 360 | |
| 361 | static int event_item_type(enum event_type type) |
| 362 | { |
| 363 | switch (type) { |
| 364 | case EVENT_ITEM ... EVENT_SQUOTE: |
| 365 | return 1; |
| 366 | case EVENT_ERROR ... EVENT_DELIM: |
| 367 | default: |
| 368 | return 0; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | static void free_arg(struct print_arg *arg) |
| 373 | { |
| 374 | if (!arg) |
| 375 | return; |
| 376 | |
| 377 | switch (arg->type) { |
| 378 | case PRINT_ATOM: |
| 379 | if (arg->atom.atom) |
| 380 | free(arg->atom.atom); |
| 381 | break; |
| 382 | case PRINT_NULL: |
| 383 | case PRINT_FIELD ... PRINT_OP: |
| 384 | default: |
| 385 | /* todo */ |
| 386 | break; |
| 387 | } |
| 388 | |
| 389 | free(arg); |
| 390 | } |
| 391 | |
| 392 | static enum event_type get_type(int ch) |
| 393 | { |
| 394 | if (ch == '\n') |
| 395 | return EVENT_NEWLINE; |
| 396 | if (isspace(ch)) |
| 397 | return EVENT_SPACE; |
| 398 | if (isalnum(ch) || ch == '_') |
| 399 | return EVENT_ITEM; |
| 400 | if (ch == '\'') |
| 401 | return EVENT_SQUOTE; |
| 402 | if (ch == '"') |
| 403 | return EVENT_DQUOTE; |
| 404 | if (!isprint(ch)) |
| 405 | return EVENT_NONE; |
| 406 | if (ch == '(' || ch == ')' || ch == ',') |
| 407 | return EVENT_DELIM; |
| 408 | |
| 409 | return EVENT_OP; |
| 410 | } |
| 411 | |
| 412 | static int __read_char(void) |
| 413 | { |
| 414 | if (input_buf_ptr >= input_buf_siz) |
| 415 | return -1; |
| 416 | |
| 417 | return input_buf[input_buf_ptr++]; |
| 418 | } |
| 419 | |
| 420 | static int __peek_char(void) |
| 421 | { |
| 422 | if (input_buf_ptr >= input_buf_siz) |
| 423 | return -1; |
| 424 | |
| 425 | return input_buf[input_buf_ptr]; |
| 426 | } |
| 427 | |
| 428 | static enum event_type __read_token(char **tok) |
| 429 | { |
| 430 | char buf[BUFSIZ]; |
| 431 | int ch, last_ch, quote_ch, next_ch; |
| 432 | int i = 0; |
| 433 | int tok_size = 0; |
| 434 | enum event_type type; |
| 435 | |
| 436 | *tok = NULL; |
| 437 | |
| 438 | |
| 439 | ch = __read_char(); |
| 440 | if (ch < 0) |
| 441 | return EVENT_NONE; |
| 442 | |
| 443 | type = get_type(ch); |
| 444 | if (type == EVENT_NONE) |
| 445 | return type; |
| 446 | |
| 447 | buf[i++] = ch; |
| 448 | |
| 449 | switch (type) { |
| 450 | case EVENT_NEWLINE: |
| 451 | case EVENT_DELIM: |
| 452 | *tok = malloc_or_die(2); |
| 453 | (*tok)[0] = ch; |
| 454 | (*tok)[1] = 0; |
| 455 | return type; |
| 456 | |
| 457 | case EVENT_OP: |
| 458 | switch (ch) { |
| 459 | case '-': |
| 460 | next_ch = __peek_char(); |
| 461 | if (next_ch == '>') { |
| 462 | buf[i++] = __read_char(); |
| 463 | break; |
| 464 | } |
| 465 | /* fall through */ |
| 466 | case '+': |
| 467 | case '|': |
| 468 | case '&': |
| 469 | case '>': |
| 470 | case '<': |
| 471 | last_ch = ch; |
| 472 | ch = __peek_char(); |
| 473 | if (ch != last_ch) |
| 474 | goto test_equal; |
| 475 | buf[i++] = __read_char(); |
| 476 | switch (last_ch) { |
| 477 | case '>': |
| 478 | case '<': |
| 479 | goto test_equal; |
| 480 | default: |
| 481 | break; |
| 482 | } |
| 483 | break; |
| 484 | case '!': |
| 485 | case '=': |
| 486 | goto test_equal; |
| 487 | default: /* what should we do instead? */ |
| 488 | break; |
| 489 | } |
| 490 | buf[i] = 0; |
| 491 | *tok = strdup(buf); |
| 492 | return type; |
| 493 | |
| 494 | test_equal: |
| 495 | ch = __peek_char(); |
| 496 | if (ch == '=') |
| 497 | buf[i++] = __read_char(); |
| 498 | break; |
| 499 | |
| 500 | case EVENT_DQUOTE: |
| 501 | case EVENT_SQUOTE: |
| 502 | /* don't keep quotes */ |
| 503 | i--; |
| 504 | quote_ch = ch; |
| 505 | last_ch = 0; |
| 506 | do { |
| 507 | if (i == (BUFSIZ - 1)) { |
| 508 | buf[i] = 0; |
| 509 | if (*tok) { |
| 510 | *tok = realloc(*tok, tok_size + BUFSIZ); |
| 511 | if (!*tok) |
| 512 | return EVENT_NONE; |
| 513 | strcat(*tok, buf); |
| 514 | } else |
| 515 | *tok = strdup(buf); |
| 516 | |
| 517 | if (!*tok) |
| 518 | return EVENT_NONE; |
| 519 | tok_size += BUFSIZ; |
| 520 | i = 0; |
| 521 | } |
| 522 | last_ch = ch; |
| 523 | ch = __read_char(); |
| 524 | buf[i++] = ch; |
Steven Rostedt | 91ff2bc | 2009-10-14 15:43:33 -0400 | [diff] [blame] | 525 | /* the '\' '\' will cancel itself */ |
| 526 | if (ch == '\\' && last_ch == '\\') |
| 527 | last_ch = 0; |
| 528 | } while (ch != quote_ch || last_ch == '\\'); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 529 | /* remove the last quote */ |
| 530 | i--; |
| 531 | goto out; |
| 532 | |
| 533 | case EVENT_ERROR ... EVENT_SPACE: |
| 534 | case EVENT_ITEM: |
| 535 | default: |
| 536 | break; |
| 537 | } |
| 538 | |
| 539 | while (get_type(__peek_char()) == type) { |
| 540 | if (i == (BUFSIZ - 1)) { |
| 541 | buf[i] = 0; |
| 542 | if (*tok) { |
| 543 | *tok = realloc(*tok, tok_size + BUFSIZ); |
| 544 | if (!*tok) |
| 545 | return EVENT_NONE; |
| 546 | strcat(*tok, buf); |
| 547 | } else |
| 548 | *tok = strdup(buf); |
| 549 | |
| 550 | if (!*tok) |
| 551 | return EVENT_NONE; |
| 552 | tok_size += BUFSIZ; |
| 553 | i = 0; |
| 554 | } |
| 555 | ch = __read_char(); |
| 556 | buf[i++] = ch; |
| 557 | } |
| 558 | |
| 559 | out: |
| 560 | buf[i] = 0; |
| 561 | if (*tok) { |
| 562 | *tok = realloc(*tok, tok_size + i); |
| 563 | if (!*tok) |
| 564 | return EVENT_NONE; |
| 565 | strcat(*tok, buf); |
| 566 | } else |
| 567 | *tok = strdup(buf); |
| 568 | if (!*tok) |
| 569 | return EVENT_NONE; |
| 570 | |
| 571 | return type; |
| 572 | } |
| 573 | |
| 574 | static void free_token(char *tok) |
| 575 | { |
| 576 | if (tok) |
| 577 | free(tok); |
| 578 | } |
| 579 | |
| 580 | static enum event_type read_token(char **tok) |
| 581 | { |
| 582 | enum event_type type; |
| 583 | |
| 584 | for (;;) { |
| 585 | type = __read_token(tok); |
| 586 | if (type != EVENT_SPACE) |
| 587 | return type; |
| 588 | |
| 589 | free_token(*tok); |
| 590 | } |
| 591 | |
| 592 | /* not reached */ |
| 593 | return EVENT_NONE; |
| 594 | } |
| 595 | |
| 596 | /* no newline */ |
| 597 | static enum event_type read_token_item(char **tok) |
| 598 | { |
| 599 | enum event_type type; |
| 600 | |
| 601 | for (;;) { |
| 602 | type = __read_token(tok); |
| 603 | if (type != EVENT_SPACE && type != EVENT_NEWLINE) |
| 604 | return type; |
| 605 | |
| 606 | free_token(*tok); |
| 607 | } |
| 608 | |
| 609 | /* not reached */ |
| 610 | return EVENT_NONE; |
| 611 | } |
| 612 | |
| 613 | static int test_type(enum event_type type, enum event_type expect) |
| 614 | { |
| 615 | if (type != expect) { |
| 616 | die("Error: expected type %d but read %d", |
| 617 | expect, type); |
| 618 | return -1; |
| 619 | } |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | static int test_type_token(enum event_type type, char *token, |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 624 | enum event_type expect, const char *expect_tok) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 625 | { |
| 626 | if (type != expect) { |
| 627 | die("Error: expected type %d but read %d", |
| 628 | expect, type); |
| 629 | return -1; |
| 630 | } |
| 631 | |
| 632 | if (strcmp(token, expect_tok) != 0) { |
| 633 | die("Error: expected '%s' but read '%s'", |
| 634 | expect_tok, token); |
| 635 | return -1; |
| 636 | } |
| 637 | return 0; |
| 638 | } |
| 639 | |
| 640 | static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) |
| 641 | { |
| 642 | enum event_type type; |
| 643 | |
| 644 | if (newline_ok) |
| 645 | type = read_token(tok); |
| 646 | else |
| 647 | type = read_token_item(tok); |
| 648 | return test_type(type, expect); |
| 649 | } |
| 650 | |
| 651 | static int read_expect_type(enum event_type expect, char **tok) |
| 652 | { |
| 653 | return __read_expect_type(expect, tok, 1); |
| 654 | } |
| 655 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 656 | static int __read_expected(enum event_type expect, const char *str, int newline_ok) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 657 | { |
| 658 | enum event_type type; |
| 659 | char *token; |
| 660 | int ret; |
| 661 | |
| 662 | if (newline_ok) |
| 663 | type = read_token(&token); |
| 664 | else |
| 665 | type = read_token_item(&token); |
| 666 | |
| 667 | ret = test_type_token(type, token, expect, str); |
| 668 | |
| 669 | free_token(token); |
| 670 | |
| 671 | return 0; |
| 672 | } |
| 673 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 674 | static int read_expected(enum event_type expect, const char *str) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 675 | { |
| 676 | return __read_expected(expect, str, 1); |
| 677 | } |
| 678 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 679 | static int read_expected_item(enum event_type expect, const char *str) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 680 | { |
| 681 | return __read_expected(expect, str, 0); |
| 682 | } |
| 683 | |
| 684 | static char *event_read_name(void) |
| 685 | { |
| 686 | char *token; |
| 687 | |
| 688 | if (read_expected(EVENT_ITEM, (char *)"name") < 0) |
| 689 | return NULL; |
| 690 | |
| 691 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 692 | return NULL; |
| 693 | |
| 694 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 695 | goto fail; |
| 696 | |
| 697 | return token; |
| 698 | |
| 699 | fail: |
| 700 | free_token(token); |
| 701 | return NULL; |
| 702 | } |
| 703 | |
| 704 | static int event_read_id(void) |
| 705 | { |
| 706 | char *token; |
| 707 | int id; |
| 708 | |
| 709 | if (read_expected_item(EVENT_ITEM, (char *)"ID") < 0) |
| 710 | return -1; |
| 711 | |
| 712 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 713 | return -1; |
| 714 | |
| 715 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 716 | goto fail; |
| 717 | |
| 718 | id = strtoul(token, NULL, 0); |
| 719 | free_token(token); |
| 720 | return id; |
| 721 | |
| 722 | fail: |
| 723 | free_token(token); |
| 724 | return -1; |
| 725 | } |
| 726 | |
Tom Zanussi | 064739b | 2009-10-06 01:09:52 -0500 | [diff] [blame] | 727 | static int field_is_string(struct format_field *field) |
| 728 | { |
| 729 | if ((field->flags & FIELD_IS_ARRAY) && |
| 730 | (!strstr(field->type, "char") || !strstr(field->type, "u8") || |
| 731 | !strstr(field->type, "s8"))) |
| 732 | return 1; |
| 733 | |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | static int field_is_dynamic(struct format_field *field) |
| 738 | { |
| 739 | if (!strcmp(field->type, "__data_loc")) |
| 740 | return 1; |
| 741 | |
| 742 | return 0; |
| 743 | } |
| 744 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 745 | static int event_read_fields(struct event *event, struct format_field **fields) |
| 746 | { |
| 747 | struct format_field *field = NULL; |
| 748 | enum event_type type; |
| 749 | char *token; |
| 750 | char *last_token; |
| 751 | int count = 0; |
| 752 | |
| 753 | do { |
| 754 | type = read_token(&token); |
| 755 | if (type == EVENT_NEWLINE) { |
| 756 | free_token(token); |
| 757 | return count; |
| 758 | } |
| 759 | |
| 760 | count++; |
| 761 | |
| 762 | if (test_type_token(type, token, EVENT_ITEM, (char *)"field")) |
| 763 | goto fail; |
| 764 | free_token(token); |
| 765 | |
| 766 | type = read_token(&token); |
| 767 | /* |
| 768 | * The ftrace fields may still use the "special" name. |
| 769 | * Just ignore it. |
| 770 | */ |
| 771 | if (event->flags & EVENT_FL_ISFTRACE && |
| 772 | type == EVENT_ITEM && strcmp(token, "special") == 0) { |
| 773 | free_token(token); |
| 774 | type = read_token(&token); |
| 775 | } |
| 776 | |
| 777 | if (test_type_token(type, token, EVENT_OP, (char *)":") < 0) |
| 778 | return -1; |
| 779 | |
| 780 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 781 | goto fail; |
| 782 | |
| 783 | last_token = token; |
| 784 | |
| 785 | field = malloc_or_die(sizeof(*field)); |
| 786 | memset(field, 0, sizeof(*field)); |
| 787 | |
| 788 | /* read the rest of the type */ |
| 789 | for (;;) { |
| 790 | type = read_token(&token); |
| 791 | if (type == EVENT_ITEM || |
| 792 | (type == EVENT_OP && strcmp(token, "*") == 0) || |
| 793 | /* |
| 794 | * Some of the ftrace fields are broken and have |
| 795 | * an illegal "." in them. |
| 796 | */ |
| 797 | (event->flags & EVENT_FL_ISFTRACE && |
| 798 | type == EVENT_OP && strcmp(token, ".") == 0)) { |
| 799 | |
| 800 | if (strcmp(token, "*") == 0) |
| 801 | field->flags |= FIELD_IS_POINTER; |
| 802 | |
| 803 | if (field->type) { |
| 804 | field->type = realloc(field->type, |
| 805 | strlen(field->type) + |
| 806 | strlen(last_token) + 2); |
| 807 | strcat(field->type, " "); |
| 808 | strcat(field->type, last_token); |
| 809 | } else |
| 810 | field->type = last_token; |
| 811 | last_token = token; |
| 812 | continue; |
| 813 | } |
| 814 | |
| 815 | break; |
| 816 | } |
| 817 | |
| 818 | if (!field->type) { |
| 819 | die("no type found"); |
| 820 | goto fail; |
| 821 | } |
| 822 | field->name = last_token; |
| 823 | |
| 824 | if (test_type(type, EVENT_OP)) |
| 825 | goto fail; |
| 826 | |
| 827 | if (strcmp(token, "[") == 0) { |
| 828 | enum event_type last_type = type; |
| 829 | char *brackets = token; |
| 830 | int len; |
| 831 | |
| 832 | field->flags |= FIELD_IS_ARRAY; |
| 833 | |
| 834 | type = read_token(&token); |
| 835 | while (strcmp(token, "]") != 0) { |
| 836 | if (last_type == EVENT_ITEM && |
| 837 | type == EVENT_ITEM) |
| 838 | len = 2; |
| 839 | else |
| 840 | len = 1; |
| 841 | last_type = type; |
| 842 | |
| 843 | brackets = realloc(brackets, |
| 844 | strlen(brackets) + |
| 845 | strlen(token) + len); |
| 846 | if (len == 2) |
| 847 | strcat(brackets, " "); |
| 848 | strcat(brackets, token); |
| 849 | free_token(token); |
| 850 | type = read_token(&token); |
| 851 | if (type == EVENT_NONE) { |
| 852 | die("failed to find token"); |
| 853 | goto fail; |
| 854 | } |
| 855 | } |
| 856 | |
| 857 | free_token(token); |
| 858 | |
| 859 | brackets = realloc(brackets, strlen(brackets) + 2); |
| 860 | strcat(brackets, "]"); |
| 861 | |
| 862 | /* add brackets to type */ |
| 863 | |
| 864 | type = read_token(&token); |
| 865 | /* |
| 866 | * If the next token is not an OP, then it is of |
| 867 | * the format: type [] item; |
| 868 | */ |
| 869 | if (type == EVENT_ITEM) { |
| 870 | field->type = realloc(field->type, |
| 871 | strlen(field->type) + |
| 872 | strlen(field->name) + |
| 873 | strlen(brackets) + 2); |
| 874 | strcat(field->type, " "); |
| 875 | strcat(field->type, field->name); |
| 876 | free_token(field->name); |
| 877 | strcat(field->type, brackets); |
| 878 | field->name = token; |
| 879 | type = read_token(&token); |
| 880 | } else { |
| 881 | field->type = realloc(field->type, |
| 882 | strlen(field->type) + |
| 883 | strlen(brackets) + 1); |
| 884 | strcat(field->type, brackets); |
| 885 | } |
| 886 | free(brackets); |
| 887 | } |
| 888 | |
Tom Zanussi | 064739b | 2009-10-06 01:09:52 -0500 | [diff] [blame] | 889 | if (field_is_string(field)) { |
| 890 | field->flags |= FIELD_IS_STRING; |
| 891 | if (field_is_dynamic(field)) |
| 892 | field->flags |= FIELD_IS_DYNAMIC; |
| 893 | } |
| 894 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 895 | if (test_type_token(type, token, EVENT_OP, (char *)";")) |
| 896 | goto fail; |
| 897 | free_token(token); |
| 898 | |
| 899 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) |
| 900 | goto fail_expect; |
| 901 | |
| 902 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 903 | goto fail_expect; |
| 904 | |
| 905 | if (read_expect_type(EVENT_ITEM, &token)) |
| 906 | goto fail; |
| 907 | field->offset = strtoul(token, NULL, 0); |
| 908 | free_token(token); |
| 909 | |
| 910 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 911 | goto fail_expect; |
| 912 | |
| 913 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) |
| 914 | goto fail_expect; |
| 915 | |
| 916 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 917 | goto fail_expect; |
| 918 | |
| 919 | if (read_expect_type(EVENT_ITEM, &token)) |
| 920 | goto fail; |
| 921 | field->size = strtoul(token, NULL, 0); |
| 922 | free_token(token); |
| 923 | |
| 924 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 925 | goto fail_expect; |
| 926 | |
Tom Zanussi | 26a5074 | 2009-10-06 01:09:50 -0500 | [diff] [blame] | 927 | if (read_expected(EVENT_ITEM, (char *)"signed") < 0) |
| 928 | goto fail_expect; |
| 929 | |
| 930 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 931 | goto fail_expect; |
| 932 | |
| 933 | if (read_expect_type(EVENT_ITEM, &token)) |
| 934 | goto fail; |
| 935 | if (strtoul(token, NULL, 0)) |
| 936 | field->flags |= FIELD_IS_SIGNED; |
| 937 | free_token(token); |
| 938 | |
| 939 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 940 | goto fail_expect; |
| 941 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 942 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) |
| 943 | goto fail; |
| 944 | free_token(token); |
| 945 | |
| 946 | *fields = field; |
| 947 | fields = &field->next; |
| 948 | |
| 949 | } while (1); |
| 950 | |
| 951 | return 0; |
| 952 | |
| 953 | fail: |
| 954 | free_token(token); |
| 955 | fail_expect: |
| 956 | if (field) |
| 957 | free(field); |
| 958 | return -1; |
| 959 | } |
| 960 | |
| 961 | static int event_read_format(struct event *event) |
| 962 | { |
| 963 | char *token; |
| 964 | int ret; |
| 965 | |
| 966 | if (read_expected_item(EVENT_ITEM, (char *)"format") < 0) |
| 967 | return -1; |
| 968 | |
| 969 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 970 | return -1; |
| 971 | |
| 972 | if (read_expect_type(EVENT_NEWLINE, &token)) |
| 973 | goto fail; |
| 974 | free_token(token); |
| 975 | |
| 976 | ret = event_read_fields(event, &event->format.common_fields); |
| 977 | if (ret < 0) |
| 978 | return ret; |
| 979 | event->format.nr_common = ret; |
| 980 | |
| 981 | ret = event_read_fields(event, &event->format.fields); |
| 982 | if (ret < 0) |
| 983 | return ret; |
| 984 | event->format.nr_fields = ret; |
| 985 | |
| 986 | return 0; |
| 987 | |
| 988 | fail: |
| 989 | free_token(token); |
| 990 | return -1; |
| 991 | } |
| 992 | |
| 993 | enum event_type |
| 994 | process_arg_token(struct event *event, struct print_arg *arg, |
| 995 | char **tok, enum event_type type); |
| 996 | |
| 997 | static enum event_type |
| 998 | process_arg(struct event *event, struct print_arg *arg, char **tok) |
| 999 | { |
| 1000 | enum event_type type; |
| 1001 | char *token; |
| 1002 | |
| 1003 | type = read_token(&token); |
| 1004 | *tok = token; |
| 1005 | |
| 1006 | return process_arg_token(event, arg, tok, type); |
| 1007 | } |
| 1008 | |
| 1009 | static enum event_type |
| 1010 | process_cond(struct event *event, struct print_arg *top, char **tok) |
| 1011 | { |
| 1012 | struct print_arg *arg, *left, *right; |
| 1013 | enum event_type type; |
| 1014 | char *token = NULL; |
| 1015 | |
| 1016 | arg = malloc_or_die(sizeof(*arg)); |
| 1017 | memset(arg, 0, sizeof(*arg)); |
| 1018 | |
| 1019 | left = malloc_or_die(sizeof(*left)); |
| 1020 | |
| 1021 | right = malloc_or_die(sizeof(*right)); |
| 1022 | |
| 1023 | arg->type = PRINT_OP; |
| 1024 | arg->op.left = left; |
| 1025 | arg->op.right = right; |
| 1026 | |
| 1027 | *tok = NULL; |
| 1028 | type = process_arg(event, left, &token); |
| 1029 | if (test_type_token(type, token, EVENT_OP, (char *)":")) |
| 1030 | goto out_free; |
| 1031 | |
| 1032 | arg->op.op = token; |
| 1033 | |
| 1034 | type = process_arg(event, right, &token); |
| 1035 | |
| 1036 | top->op.right = arg; |
| 1037 | |
| 1038 | *tok = token; |
| 1039 | return type; |
| 1040 | |
| 1041 | out_free: |
| 1042 | free_token(*tok); |
| 1043 | free(right); |
| 1044 | free(left); |
| 1045 | free_arg(arg); |
| 1046 | return EVENT_ERROR; |
| 1047 | } |
| 1048 | |
Steven Rostedt | 0959b8d | 2009-10-14 15:43:35 -0400 | [diff] [blame] | 1049 | static enum event_type |
| 1050 | process_array(struct event *event, struct print_arg *top, char **tok) |
| 1051 | { |
| 1052 | struct print_arg *arg; |
| 1053 | enum event_type type; |
| 1054 | char *token = NULL; |
| 1055 | |
| 1056 | arg = malloc_or_die(sizeof(*arg)); |
| 1057 | memset(arg, 0, sizeof(*arg)); |
| 1058 | |
| 1059 | *tok = NULL; |
| 1060 | type = process_arg(event, arg, &token); |
| 1061 | if (test_type_token(type, token, EVENT_OP, (char *)"]")) |
| 1062 | goto out_free; |
| 1063 | |
| 1064 | top->op.right = arg; |
| 1065 | |
| 1066 | free_token(token); |
| 1067 | type = read_token_item(&token); |
| 1068 | *tok = token; |
| 1069 | |
| 1070 | return type; |
| 1071 | |
| 1072 | out_free: |
| 1073 | free_token(*tok); |
| 1074 | free_arg(arg); |
| 1075 | return EVENT_ERROR; |
| 1076 | } |
| 1077 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1078 | static int get_op_prio(char *op) |
| 1079 | { |
| 1080 | if (!op[1]) { |
| 1081 | switch (op[0]) { |
| 1082 | case '*': |
| 1083 | case '/': |
| 1084 | case '%': |
| 1085 | return 6; |
| 1086 | case '+': |
| 1087 | case '-': |
| 1088 | return 7; |
| 1089 | /* '>>' and '<<' are 8 */ |
| 1090 | case '<': |
| 1091 | case '>': |
| 1092 | return 9; |
| 1093 | /* '==' and '!=' are 10 */ |
| 1094 | case '&': |
| 1095 | return 11; |
| 1096 | case '^': |
| 1097 | return 12; |
| 1098 | case '|': |
| 1099 | return 13; |
| 1100 | case '?': |
| 1101 | return 16; |
| 1102 | default: |
| 1103 | die("unknown op '%c'", op[0]); |
| 1104 | return -1; |
| 1105 | } |
| 1106 | } else { |
| 1107 | if (strcmp(op, "++") == 0 || |
| 1108 | strcmp(op, "--") == 0) { |
| 1109 | return 3; |
| 1110 | } else if (strcmp(op, ">>") == 0 || |
| 1111 | strcmp(op, "<<") == 0) { |
| 1112 | return 8; |
| 1113 | } else if (strcmp(op, ">=") == 0 || |
| 1114 | strcmp(op, "<=") == 0) { |
| 1115 | return 9; |
| 1116 | } else if (strcmp(op, "==") == 0 || |
| 1117 | strcmp(op, "!=") == 0) { |
| 1118 | return 10; |
| 1119 | } else if (strcmp(op, "&&") == 0) { |
| 1120 | return 14; |
| 1121 | } else if (strcmp(op, "||") == 0) { |
| 1122 | return 15; |
| 1123 | } else { |
| 1124 | die("unknown op '%s'", op); |
| 1125 | return -1; |
| 1126 | } |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | static void set_op_prio(struct print_arg *arg) |
| 1131 | { |
| 1132 | |
| 1133 | /* single ops are the greatest */ |
| 1134 | if (!arg->op.left || arg->op.left->type == PRINT_NULL) { |
| 1135 | arg->op.prio = 0; |
| 1136 | return; |
| 1137 | } |
| 1138 | |
| 1139 | arg->op.prio = get_op_prio(arg->op.op); |
| 1140 | } |
| 1141 | |
| 1142 | static enum event_type |
| 1143 | process_op(struct event *event, struct print_arg *arg, char **tok) |
| 1144 | { |
| 1145 | struct print_arg *left, *right = NULL; |
| 1146 | enum event_type type; |
| 1147 | char *token; |
| 1148 | |
| 1149 | /* the op is passed in via tok */ |
| 1150 | token = *tok; |
| 1151 | |
| 1152 | if (arg->type == PRINT_OP && !arg->op.left) { |
| 1153 | /* handle single op */ |
| 1154 | if (token[1]) { |
| 1155 | die("bad op token %s", token); |
| 1156 | return EVENT_ERROR; |
| 1157 | } |
| 1158 | switch (token[0]) { |
| 1159 | case '!': |
| 1160 | case '+': |
| 1161 | case '-': |
| 1162 | break; |
| 1163 | default: |
| 1164 | die("bad op token %s", token); |
| 1165 | return EVENT_ERROR; |
| 1166 | } |
| 1167 | |
| 1168 | /* make an empty left */ |
| 1169 | left = malloc_or_die(sizeof(*left)); |
| 1170 | left->type = PRINT_NULL; |
| 1171 | arg->op.left = left; |
| 1172 | |
| 1173 | right = malloc_or_die(sizeof(*right)); |
| 1174 | arg->op.right = right; |
| 1175 | |
| 1176 | type = process_arg(event, right, tok); |
| 1177 | |
| 1178 | } else if (strcmp(token, "?") == 0) { |
| 1179 | |
| 1180 | left = malloc_or_die(sizeof(*left)); |
| 1181 | /* copy the top arg to the left */ |
| 1182 | *left = *arg; |
| 1183 | |
| 1184 | arg->type = PRINT_OP; |
| 1185 | arg->op.op = token; |
| 1186 | arg->op.left = left; |
| 1187 | arg->op.prio = 0; |
| 1188 | |
| 1189 | type = process_cond(event, arg, tok); |
| 1190 | |
| 1191 | } else if (strcmp(token, ">>") == 0 || |
| 1192 | strcmp(token, "<<") == 0 || |
| 1193 | strcmp(token, "&") == 0 || |
| 1194 | strcmp(token, "|") == 0 || |
| 1195 | strcmp(token, "&&") == 0 || |
| 1196 | strcmp(token, "||") == 0 || |
| 1197 | strcmp(token, "-") == 0 || |
| 1198 | strcmp(token, "+") == 0 || |
| 1199 | strcmp(token, "*") == 0 || |
| 1200 | strcmp(token, "^") == 0 || |
| 1201 | strcmp(token, "/") == 0 || |
Steven Rostedt | 298ebc3 | 2009-10-14 15:43:34 -0400 | [diff] [blame] | 1202 | strcmp(token, "<") == 0 || |
| 1203 | strcmp(token, ">") == 0 || |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1204 | strcmp(token, "==") == 0 || |
| 1205 | strcmp(token, "!=") == 0) { |
| 1206 | |
| 1207 | left = malloc_or_die(sizeof(*left)); |
| 1208 | |
| 1209 | /* copy the top arg to the left */ |
| 1210 | *left = *arg; |
| 1211 | |
| 1212 | arg->type = PRINT_OP; |
| 1213 | arg->op.op = token; |
| 1214 | arg->op.left = left; |
| 1215 | |
| 1216 | set_op_prio(arg); |
| 1217 | |
| 1218 | right = malloc_or_die(sizeof(*right)); |
| 1219 | |
Steven Rostedt | b99af87 | 2009-10-14 15:43:36 -0400 | [diff] [blame] | 1220 | type = read_token_item(&token); |
| 1221 | *tok = token; |
| 1222 | |
| 1223 | /* could just be a type pointer */ |
| 1224 | if ((strcmp(arg->op.op, "*") == 0) && |
| 1225 | type == EVENT_DELIM && (strcmp(token, ")") == 0)) { |
| 1226 | if (left->type != PRINT_ATOM) |
| 1227 | die("bad pointer type"); |
| 1228 | left->atom.atom = realloc(left->atom.atom, |
| 1229 | sizeof(left->atom.atom) + 3); |
| 1230 | strcat(left->atom.atom, " *"); |
| 1231 | *arg = *left; |
| 1232 | free(arg); |
| 1233 | |
| 1234 | return type; |
| 1235 | } |
| 1236 | |
| 1237 | type = process_arg_token(event, right, tok, type); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1238 | |
| 1239 | arg->op.right = right; |
| 1240 | |
Steven Rostedt | 0959b8d | 2009-10-14 15:43:35 -0400 | [diff] [blame] | 1241 | } else if (strcmp(token, "[") == 0) { |
| 1242 | |
| 1243 | left = malloc_or_die(sizeof(*left)); |
| 1244 | *left = *arg; |
| 1245 | |
| 1246 | arg->type = PRINT_OP; |
| 1247 | arg->op.op = token; |
| 1248 | arg->op.left = left; |
| 1249 | |
| 1250 | arg->op.prio = 0; |
| 1251 | type = process_array(event, arg, tok); |
| 1252 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1253 | } else { |
| 1254 | die("unknown op '%s'", token); |
| 1255 | /* the arg is now the left side */ |
| 1256 | return EVENT_NONE; |
| 1257 | } |
| 1258 | |
| 1259 | |
| 1260 | if (type == EVENT_OP) { |
| 1261 | int prio; |
| 1262 | |
| 1263 | /* higher prios need to be closer to the root */ |
| 1264 | prio = get_op_prio(*tok); |
| 1265 | |
| 1266 | if (prio > arg->op.prio) |
| 1267 | return process_op(event, arg, tok); |
| 1268 | |
| 1269 | return process_op(event, right, tok); |
| 1270 | } |
| 1271 | |
| 1272 | return type; |
| 1273 | } |
| 1274 | |
| 1275 | static enum event_type |
| 1276 | process_entry(struct event *event __unused, struct print_arg *arg, |
| 1277 | char **tok) |
| 1278 | { |
| 1279 | enum event_type type; |
| 1280 | char *field; |
| 1281 | char *token; |
| 1282 | |
| 1283 | if (read_expected(EVENT_OP, (char *)"->") < 0) |
| 1284 | return EVENT_ERROR; |
| 1285 | |
| 1286 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 1287 | goto fail; |
| 1288 | field = token; |
| 1289 | |
| 1290 | arg->type = PRINT_FIELD; |
| 1291 | arg->field.name = field; |
| 1292 | |
| 1293 | type = read_token(&token); |
| 1294 | *tok = token; |
| 1295 | |
| 1296 | return type; |
| 1297 | |
| 1298 | fail: |
| 1299 | free_token(token); |
| 1300 | return EVENT_ERROR; |
| 1301 | } |
| 1302 | |
| 1303 | static char *arg_eval (struct print_arg *arg); |
| 1304 | |
| 1305 | static long long arg_num_eval(struct print_arg *arg) |
| 1306 | { |
| 1307 | long long left, right; |
| 1308 | long long val = 0; |
| 1309 | |
| 1310 | switch (arg->type) { |
| 1311 | case PRINT_ATOM: |
| 1312 | val = strtoll(arg->atom.atom, NULL, 0); |
| 1313 | break; |
| 1314 | case PRINT_TYPE: |
| 1315 | val = arg_num_eval(arg->typecast.item); |
| 1316 | break; |
| 1317 | case PRINT_OP: |
| 1318 | switch (arg->op.op[0]) { |
| 1319 | case '|': |
| 1320 | left = arg_num_eval(arg->op.left); |
| 1321 | right = arg_num_eval(arg->op.right); |
| 1322 | if (arg->op.op[1]) |
| 1323 | val = left || right; |
| 1324 | else |
| 1325 | val = left | right; |
| 1326 | break; |
| 1327 | case '&': |
| 1328 | left = arg_num_eval(arg->op.left); |
| 1329 | right = arg_num_eval(arg->op.right); |
| 1330 | if (arg->op.op[1]) |
| 1331 | val = left && right; |
| 1332 | else |
| 1333 | val = left & right; |
| 1334 | break; |
| 1335 | case '<': |
| 1336 | left = arg_num_eval(arg->op.left); |
| 1337 | right = arg_num_eval(arg->op.right); |
| 1338 | switch (arg->op.op[1]) { |
| 1339 | case 0: |
| 1340 | val = left < right; |
| 1341 | break; |
| 1342 | case '<': |
| 1343 | val = left << right; |
| 1344 | break; |
| 1345 | case '=': |
| 1346 | val = left <= right; |
| 1347 | break; |
| 1348 | default: |
| 1349 | die("unknown op '%s'", arg->op.op); |
| 1350 | } |
| 1351 | break; |
| 1352 | case '>': |
| 1353 | left = arg_num_eval(arg->op.left); |
| 1354 | right = arg_num_eval(arg->op.right); |
| 1355 | switch (arg->op.op[1]) { |
| 1356 | case 0: |
| 1357 | val = left > right; |
| 1358 | break; |
| 1359 | case '>': |
| 1360 | val = left >> right; |
| 1361 | break; |
| 1362 | case '=': |
| 1363 | val = left >= right; |
| 1364 | break; |
| 1365 | default: |
| 1366 | die("unknown op '%s'", arg->op.op); |
| 1367 | } |
| 1368 | break; |
| 1369 | case '=': |
| 1370 | left = arg_num_eval(arg->op.left); |
| 1371 | right = arg_num_eval(arg->op.right); |
| 1372 | |
| 1373 | if (arg->op.op[1] != '=') |
| 1374 | die("unknown op '%s'", arg->op.op); |
| 1375 | |
| 1376 | val = left == right; |
| 1377 | break; |
| 1378 | case '!': |
| 1379 | left = arg_num_eval(arg->op.left); |
| 1380 | right = arg_num_eval(arg->op.right); |
| 1381 | |
| 1382 | switch (arg->op.op[1]) { |
| 1383 | case '=': |
| 1384 | val = left != right; |
| 1385 | break; |
| 1386 | default: |
| 1387 | die("unknown op '%s'", arg->op.op); |
| 1388 | } |
| 1389 | break; |
| 1390 | default: |
| 1391 | die("unknown op '%s'", arg->op.op); |
| 1392 | } |
| 1393 | break; |
| 1394 | |
| 1395 | case PRINT_NULL: |
| 1396 | case PRINT_FIELD ... PRINT_SYMBOL: |
| 1397 | case PRINT_STRING: |
| 1398 | default: |
| 1399 | die("invalid eval type %d", arg->type); |
| 1400 | |
| 1401 | } |
| 1402 | return val; |
| 1403 | } |
| 1404 | |
| 1405 | static char *arg_eval (struct print_arg *arg) |
| 1406 | { |
| 1407 | long long val; |
| 1408 | static char buf[20]; |
| 1409 | |
| 1410 | switch (arg->type) { |
| 1411 | case PRINT_ATOM: |
| 1412 | return arg->atom.atom; |
| 1413 | case PRINT_TYPE: |
| 1414 | return arg_eval(arg->typecast.item); |
| 1415 | case PRINT_OP: |
| 1416 | val = arg_num_eval(arg); |
| 1417 | sprintf(buf, "%lld", val); |
| 1418 | return buf; |
| 1419 | |
| 1420 | case PRINT_NULL: |
| 1421 | case PRINT_FIELD ... PRINT_SYMBOL: |
| 1422 | case PRINT_STRING: |
| 1423 | default: |
| 1424 | die("invalid eval type %d", arg->type); |
| 1425 | break; |
| 1426 | } |
| 1427 | |
| 1428 | return NULL; |
| 1429 | } |
| 1430 | |
| 1431 | static enum event_type |
| 1432 | process_fields(struct event *event, struct print_flag_sym **list, char **tok) |
| 1433 | { |
| 1434 | enum event_type type; |
| 1435 | struct print_arg *arg = NULL; |
| 1436 | struct print_flag_sym *field; |
| 1437 | char *token = NULL; |
| 1438 | char *value; |
| 1439 | |
| 1440 | do { |
| 1441 | free_token(token); |
| 1442 | type = read_token_item(&token); |
| 1443 | if (test_type_token(type, token, EVENT_OP, (char *)"{")) |
| 1444 | break; |
| 1445 | |
| 1446 | arg = malloc_or_die(sizeof(*arg)); |
| 1447 | |
| 1448 | free_token(token); |
| 1449 | type = process_arg(event, arg, &token); |
| 1450 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
| 1451 | goto out_free; |
| 1452 | |
| 1453 | field = malloc_or_die(sizeof(*field)); |
| 1454 | memset(field, 0, sizeof(field)); |
| 1455 | |
| 1456 | value = arg_eval(arg); |
| 1457 | field->value = strdup(value); |
| 1458 | |
| 1459 | free_token(token); |
| 1460 | type = process_arg(event, arg, &token); |
| 1461 | if (test_type_token(type, token, EVENT_OP, (char *)"}")) |
| 1462 | goto out_free; |
| 1463 | |
| 1464 | value = arg_eval(arg); |
| 1465 | field->str = strdup(value); |
| 1466 | free_arg(arg); |
| 1467 | arg = NULL; |
| 1468 | |
| 1469 | *list = field; |
| 1470 | list = &field->next; |
| 1471 | |
| 1472 | free_token(token); |
| 1473 | type = read_token_item(&token); |
| 1474 | } while (type == EVENT_DELIM && strcmp(token, ",") == 0); |
| 1475 | |
| 1476 | *tok = token; |
| 1477 | return type; |
| 1478 | |
| 1479 | out_free: |
| 1480 | free_arg(arg); |
| 1481 | free_token(token); |
| 1482 | |
| 1483 | return EVENT_ERROR; |
| 1484 | } |
| 1485 | |
| 1486 | static enum event_type |
| 1487 | process_flags(struct event *event, struct print_arg *arg, char **tok) |
| 1488 | { |
| 1489 | struct print_arg *field; |
| 1490 | enum event_type type; |
| 1491 | char *token; |
| 1492 | |
| 1493 | memset(arg, 0, sizeof(*arg)); |
| 1494 | arg->type = PRINT_FLAGS; |
| 1495 | |
| 1496 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) |
| 1497 | return EVENT_ERROR; |
| 1498 | |
| 1499 | field = malloc_or_die(sizeof(*field)); |
| 1500 | |
| 1501 | type = process_arg(event, field, &token); |
| 1502 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
| 1503 | goto out_free; |
| 1504 | |
| 1505 | arg->flags.field = field; |
| 1506 | |
| 1507 | type = read_token_item(&token); |
| 1508 | if (event_item_type(type)) { |
| 1509 | arg->flags.delim = token; |
| 1510 | type = read_token_item(&token); |
| 1511 | } |
| 1512 | |
| 1513 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
| 1514 | goto out_free; |
| 1515 | |
| 1516 | type = process_fields(event, &arg->flags.flags, &token); |
| 1517 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) |
| 1518 | goto out_free; |
| 1519 | |
| 1520 | free_token(token); |
| 1521 | type = read_token_item(tok); |
| 1522 | return type; |
| 1523 | |
| 1524 | out_free: |
| 1525 | free_token(token); |
| 1526 | return EVENT_ERROR; |
| 1527 | } |
| 1528 | |
| 1529 | static enum event_type |
| 1530 | process_symbols(struct event *event, struct print_arg *arg, char **tok) |
| 1531 | { |
| 1532 | struct print_arg *field; |
| 1533 | enum event_type type; |
| 1534 | char *token; |
| 1535 | |
| 1536 | memset(arg, 0, sizeof(*arg)); |
| 1537 | arg->type = PRINT_SYMBOL; |
| 1538 | |
| 1539 | if (read_expected_item(EVENT_DELIM, (char *)"(") < 0) |
| 1540 | return EVENT_ERROR; |
| 1541 | |
| 1542 | field = malloc_or_die(sizeof(*field)); |
| 1543 | |
| 1544 | type = process_arg(event, field, &token); |
| 1545 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
| 1546 | goto out_free; |
| 1547 | |
| 1548 | arg->symbol.field = field; |
| 1549 | |
| 1550 | type = process_fields(event, &arg->symbol.symbols, &token); |
| 1551 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) |
| 1552 | goto out_free; |
| 1553 | |
| 1554 | free_token(token); |
| 1555 | type = read_token_item(tok); |
| 1556 | return type; |
| 1557 | |
| 1558 | out_free: |
| 1559 | free_token(token); |
| 1560 | return EVENT_ERROR; |
| 1561 | } |
| 1562 | |
| 1563 | static enum event_type |
| 1564 | process_paren(struct event *event, struct print_arg *arg, char **tok) |
| 1565 | { |
| 1566 | struct print_arg *item_arg; |
| 1567 | enum event_type type; |
| 1568 | char *token; |
| 1569 | |
| 1570 | type = process_arg(event, arg, &token); |
| 1571 | |
| 1572 | if (type == EVENT_ERROR) |
| 1573 | return EVENT_ERROR; |
| 1574 | |
Steven Rostedt | b99af87 | 2009-10-14 15:43:36 -0400 | [diff] [blame] | 1575 | if (type == EVENT_OP) |
| 1576 | type = process_op(event, arg, &token); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1577 | |
Steven Rostedt | b99af87 | 2009-10-14 15:43:36 -0400 | [diff] [blame] | 1578 | if (type == EVENT_ERROR) |
| 1579 | return EVENT_ERROR; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1580 | |
| 1581 | if (test_type_token(type, token, EVENT_DELIM, (char *)")")) { |
| 1582 | free_token(token); |
| 1583 | return EVENT_ERROR; |
| 1584 | } |
| 1585 | |
| 1586 | free_token(token); |
| 1587 | type = read_token_item(&token); |
| 1588 | |
| 1589 | /* |
| 1590 | * If the next token is an item or another open paren, then |
| 1591 | * this was a typecast. |
| 1592 | */ |
| 1593 | if (event_item_type(type) || |
| 1594 | (type == EVENT_DELIM && strcmp(token, "(") == 0)) { |
| 1595 | |
| 1596 | /* make this a typecast and contine */ |
| 1597 | |
| 1598 | /* prevous must be an atom */ |
| 1599 | if (arg->type != PRINT_ATOM) |
| 1600 | die("previous needed to be PRINT_ATOM"); |
| 1601 | |
| 1602 | item_arg = malloc_or_die(sizeof(*item_arg)); |
| 1603 | |
| 1604 | arg->type = PRINT_TYPE; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1605 | arg->typecast.type = arg->atom.atom; |
| 1606 | arg->typecast.item = item_arg; |
| 1607 | type = process_arg_token(event, item_arg, &token, type); |
| 1608 | |
| 1609 | } |
| 1610 | |
| 1611 | *tok = token; |
| 1612 | return type; |
| 1613 | } |
| 1614 | |
| 1615 | |
| 1616 | static enum event_type |
| 1617 | process_str(struct event *event __unused, struct print_arg *arg, char **tok) |
| 1618 | { |
| 1619 | enum event_type type; |
| 1620 | char *token; |
| 1621 | |
| 1622 | if (read_expected(EVENT_DELIM, (char *)"(") < 0) |
| 1623 | return EVENT_ERROR; |
| 1624 | |
| 1625 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 1626 | goto fail; |
| 1627 | |
| 1628 | arg->type = PRINT_STRING; |
| 1629 | arg->string.string = token; |
Frederic Weisbecker | 561f732 | 2009-08-31 06:45:21 +0200 | [diff] [blame] | 1630 | arg->string.offset = -1; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1631 | |
| 1632 | if (read_expected(EVENT_DELIM, (char *)")") < 0) |
| 1633 | return EVENT_ERROR; |
| 1634 | |
| 1635 | type = read_token(&token); |
| 1636 | *tok = token; |
| 1637 | |
| 1638 | return type; |
| 1639 | fail: |
| 1640 | free_token(token); |
| 1641 | return EVENT_ERROR; |
| 1642 | } |
| 1643 | |
| 1644 | enum event_type |
| 1645 | process_arg_token(struct event *event, struct print_arg *arg, |
| 1646 | char **tok, enum event_type type) |
| 1647 | { |
| 1648 | char *token; |
| 1649 | char *atom; |
| 1650 | |
| 1651 | token = *tok; |
| 1652 | |
| 1653 | switch (type) { |
| 1654 | case EVENT_ITEM: |
| 1655 | if (strcmp(token, "REC") == 0) { |
| 1656 | free_token(token); |
| 1657 | type = process_entry(event, arg, &token); |
| 1658 | } else if (strcmp(token, "__print_flags") == 0) { |
| 1659 | free_token(token); |
| 1660 | type = process_flags(event, arg, &token); |
| 1661 | } else if (strcmp(token, "__print_symbolic") == 0) { |
| 1662 | free_token(token); |
| 1663 | type = process_symbols(event, arg, &token); |
| 1664 | } else if (strcmp(token, "__get_str") == 0) { |
| 1665 | free_token(token); |
| 1666 | type = process_str(event, arg, &token); |
| 1667 | } else { |
| 1668 | atom = token; |
| 1669 | /* test the next token */ |
| 1670 | type = read_token_item(&token); |
| 1671 | |
| 1672 | /* atoms can be more than one token long */ |
| 1673 | while (type == EVENT_ITEM) { |
| 1674 | atom = realloc(atom, strlen(atom) + strlen(token) + 2); |
| 1675 | strcat(atom, " "); |
| 1676 | strcat(atom, token); |
| 1677 | free_token(token); |
| 1678 | type = read_token_item(&token); |
| 1679 | } |
| 1680 | |
| 1681 | /* todo, test for function */ |
| 1682 | |
| 1683 | arg->type = PRINT_ATOM; |
| 1684 | arg->atom.atom = atom; |
| 1685 | } |
| 1686 | break; |
| 1687 | case EVENT_DQUOTE: |
| 1688 | case EVENT_SQUOTE: |
| 1689 | arg->type = PRINT_ATOM; |
| 1690 | arg->atom.atom = token; |
| 1691 | type = read_token_item(&token); |
| 1692 | break; |
| 1693 | case EVENT_DELIM: |
| 1694 | if (strcmp(token, "(") == 0) { |
| 1695 | free_token(token); |
| 1696 | type = process_paren(event, arg, &token); |
| 1697 | break; |
| 1698 | } |
| 1699 | case EVENT_OP: |
| 1700 | /* handle single ops */ |
| 1701 | arg->type = PRINT_OP; |
| 1702 | arg->op.op = token; |
| 1703 | arg->op.left = NULL; |
| 1704 | type = process_op(event, arg, &token); |
| 1705 | |
| 1706 | break; |
| 1707 | |
| 1708 | case EVENT_ERROR ... EVENT_NEWLINE: |
| 1709 | default: |
| 1710 | die("unexpected type %d", type); |
| 1711 | } |
| 1712 | *tok = token; |
| 1713 | |
| 1714 | return type; |
| 1715 | } |
| 1716 | |
| 1717 | static int event_read_print_args(struct event *event, struct print_arg **list) |
| 1718 | { |
Steven Rostedt | f1d1fee | 2009-10-14 15:43:37 -0400 | [diff] [blame^] | 1719 | enum event_type type = EVENT_ERROR; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1720 | struct print_arg *arg; |
| 1721 | char *token; |
| 1722 | int args = 0; |
| 1723 | |
| 1724 | do { |
Steven Rostedt | f1d1fee | 2009-10-14 15:43:37 -0400 | [diff] [blame^] | 1725 | if (type == EVENT_NEWLINE) { |
| 1726 | free_token(token); |
| 1727 | type = read_token_item(&token); |
| 1728 | continue; |
| 1729 | } |
| 1730 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1731 | arg = malloc_or_die(sizeof(*arg)); |
| 1732 | memset(arg, 0, sizeof(*arg)); |
| 1733 | |
| 1734 | type = process_arg(event, arg, &token); |
| 1735 | |
| 1736 | if (type == EVENT_ERROR) { |
| 1737 | free_arg(arg); |
| 1738 | return -1; |
| 1739 | } |
| 1740 | |
| 1741 | *list = arg; |
| 1742 | args++; |
| 1743 | |
| 1744 | if (type == EVENT_OP) { |
| 1745 | type = process_op(event, arg, &token); |
| 1746 | list = &arg->next; |
| 1747 | continue; |
| 1748 | } |
| 1749 | |
| 1750 | if (type == EVENT_DELIM && strcmp(token, ",") == 0) { |
| 1751 | free_token(token); |
| 1752 | *list = arg; |
| 1753 | list = &arg->next; |
| 1754 | continue; |
| 1755 | } |
| 1756 | break; |
| 1757 | } while (type != EVENT_NONE); |
| 1758 | |
| 1759 | if (type != EVENT_NONE) |
| 1760 | free_token(token); |
| 1761 | |
| 1762 | return args; |
| 1763 | } |
| 1764 | |
| 1765 | static int event_read_print(struct event *event) |
| 1766 | { |
| 1767 | enum event_type type; |
| 1768 | char *token; |
| 1769 | int ret; |
| 1770 | |
| 1771 | if (read_expected_item(EVENT_ITEM, (char *)"print") < 0) |
| 1772 | return -1; |
| 1773 | |
| 1774 | if (read_expected(EVENT_ITEM, (char *)"fmt") < 0) |
| 1775 | return -1; |
| 1776 | |
| 1777 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 1778 | return -1; |
| 1779 | |
| 1780 | if (read_expect_type(EVENT_DQUOTE, &token) < 0) |
| 1781 | goto fail; |
| 1782 | |
Steven Rostedt | 924a79a | 2009-10-14 15:43:32 -0400 | [diff] [blame] | 1783 | concat: |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1784 | event->print_fmt.format = token; |
| 1785 | event->print_fmt.args = NULL; |
| 1786 | |
| 1787 | /* ok to have no arg */ |
| 1788 | type = read_token_item(&token); |
| 1789 | |
| 1790 | if (type == EVENT_NONE) |
| 1791 | return 0; |
| 1792 | |
Steven Rostedt | 924a79a | 2009-10-14 15:43:32 -0400 | [diff] [blame] | 1793 | /* Handle concatination of print lines */ |
| 1794 | if (type == EVENT_DQUOTE) { |
| 1795 | char *cat; |
| 1796 | |
| 1797 | cat = malloc_or_die(strlen(event->print_fmt.format) + |
| 1798 | strlen(token) + 1); |
| 1799 | strcpy(cat, event->print_fmt.format); |
| 1800 | strcat(cat, token); |
| 1801 | free_token(token); |
| 1802 | free_token(event->print_fmt.format); |
| 1803 | event->print_fmt.format = NULL; |
| 1804 | token = cat; |
| 1805 | goto concat; |
| 1806 | } |
| 1807 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1808 | if (test_type_token(type, token, EVENT_DELIM, (char *)",")) |
| 1809 | goto fail; |
| 1810 | |
| 1811 | free_token(token); |
| 1812 | |
| 1813 | ret = event_read_print_args(event, &event->print_fmt.args); |
| 1814 | if (ret < 0) |
| 1815 | return -1; |
| 1816 | |
| 1817 | return 0; |
| 1818 | |
| 1819 | fail: |
| 1820 | free_token(token); |
| 1821 | return -1; |
| 1822 | } |
| 1823 | |
| 1824 | static struct format_field * |
| 1825 | find_common_field(struct event *event, const char *name) |
| 1826 | { |
| 1827 | struct format_field *format; |
| 1828 | |
| 1829 | for (format = event->format.common_fields; |
| 1830 | format; format = format->next) { |
| 1831 | if (strcmp(format->name, name) == 0) |
| 1832 | break; |
| 1833 | } |
| 1834 | |
| 1835 | return format; |
| 1836 | } |
| 1837 | |
| 1838 | static struct format_field * |
| 1839 | find_field(struct event *event, const char *name) |
| 1840 | { |
| 1841 | struct format_field *format; |
| 1842 | |
| 1843 | for (format = event->format.fields; |
| 1844 | format; format = format->next) { |
| 1845 | if (strcmp(format->name, name) == 0) |
| 1846 | break; |
| 1847 | } |
| 1848 | |
| 1849 | return format; |
| 1850 | } |
| 1851 | |
| 1852 | static struct format_field * |
| 1853 | find_any_field(struct event *event, const char *name) |
| 1854 | { |
| 1855 | struct format_field *format; |
| 1856 | |
| 1857 | format = find_common_field(event, name); |
| 1858 | if (format) |
| 1859 | return format; |
| 1860 | return find_field(event, name); |
| 1861 | } |
| 1862 | |
| 1863 | static unsigned long long read_size(void *ptr, int size) |
| 1864 | { |
| 1865 | switch (size) { |
| 1866 | case 1: |
| 1867 | return *(unsigned char *)ptr; |
| 1868 | case 2: |
| 1869 | return data2host2(ptr); |
| 1870 | case 4: |
| 1871 | return data2host4(ptr); |
| 1872 | case 8: |
| 1873 | return data2host8(ptr); |
| 1874 | default: |
| 1875 | /* BUG! */ |
| 1876 | return 0; |
| 1877 | } |
| 1878 | } |
| 1879 | |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1880 | unsigned long long |
| 1881 | raw_field_value(struct event *event, const char *name, void *data) |
| 1882 | { |
| 1883 | struct format_field *field; |
| 1884 | |
| 1885 | field = find_any_field(event, name); |
| 1886 | if (!field) |
| 1887 | return 0ULL; |
| 1888 | |
| 1889 | return read_size(data + field->offset, field->size); |
| 1890 | } |
| 1891 | |
| 1892 | void *raw_field_ptr(struct event *event, const char *name, void *data) |
| 1893 | { |
| 1894 | struct format_field *field; |
| 1895 | |
| 1896 | field = find_any_field(event, name); |
| 1897 | if (!field) |
| 1898 | return NULL; |
| 1899 | |
| 1900 | return data + field->offset; |
| 1901 | } |
| 1902 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1903 | static int get_common_info(const char *type, int *offset, int *size) |
| 1904 | { |
| 1905 | struct event *event; |
| 1906 | struct format_field *field; |
| 1907 | |
| 1908 | /* |
| 1909 | * All events should have the same common elements. |
| 1910 | * Pick any event to find where the type is; |
| 1911 | */ |
| 1912 | if (!event_list) |
| 1913 | die("no event_list!"); |
| 1914 | |
| 1915 | event = event_list; |
| 1916 | field = find_common_field(event, type); |
| 1917 | if (!field) |
| 1918 | die("field '%s' not found", type); |
| 1919 | |
| 1920 | *offset = field->offset; |
| 1921 | *size = field->size; |
| 1922 | |
| 1923 | return 0; |
| 1924 | } |
| 1925 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1926 | int trace_parse_common_type(void *data) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1927 | { |
| 1928 | static int type_offset; |
| 1929 | static int type_size; |
| 1930 | int ret; |
| 1931 | |
| 1932 | if (!type_size) { |
| 1933 | ret = get_common_info("common_type", |
| 1934 | &type_offset, |
| 1935 | &type_size); |
| 1936 | if (ret < 0) |
| 1937 | return ret; |
| 1938 | } |
| 1939 | return read_size(data + type_offset, type_size); |
| 1940 | } |
| 1941 | |
| 1942 | static int parse_common_pid(void *data) |
| 1943 | { |
| 1944 | static int pid_offset; |
| 1945 | static int pid_size; |
| 1946 | int ret; |
| 1947 | |
| 1948 | if (!pid_size) { |
| 1949 | ret = get_common_info("common_pid", |
| 1950 | &pid_offset, |
| 1951 | &pid_size); |
| 1952 | if (ret < 0) |
| 1953 | return ret; |
| 1954 | } |
| 1955 | |
| 1956 | return read_size(data + pid_offset, pid_size); |
| 1957 | } |
| 1958 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1959 | struct event *trace_find_event(int id) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1960 | { |
| 1961 | struct event *event; |
| 1962 | |
| 1963 | for (event = event_list; event; event = event->next) { |
| 1964 | if (event->id == id) |
| 1965 | break; |
| 1966 | } |
| 1967 | return event; |
| 1968 | } |
| 1969 | |
| 1970 | static unsigned long long eval_num_arg(void *data, int size, |
| 1971 | struct event *event, struct print_arg *arg) |
| 1972 | { |
| 1973 | unsigned long long val = 0; |
| 1974 | unsigned long long left, right; |
Steven Rostedt | 0959b8d | 2009-10-14 15:43:35 -0400 | [diff] [blame] | 1975 | struct print_arg *larg; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1976 | |
| 1977 | switch (arg->type) { |
| 1978 | case PRINT_NULL: |
| 1979 | /* ?? */ |
| 1980 | return 0; |
| 1981 | case PRINT_ATOM: |
| 1982 | return strtoull(arg->atom.atom, NULL, 0); |
| 1983 | case PRINT_FIELD: |
| 1984 | if (!arg->field.field) { |
| 1985 | arg->field.field = find_any_field(event, arg->field.name); |
| 1986 | if (!arg->field.field) |
| 1987 | die("field %s not found", arg->field.name); |
| 1988 | } |
| 1989 | /* must be a number */ |
| 1990 | val = read_size(data + arg->field.field->offset, |
| 1991 | arg->field.field->size); |
| 1992 | break; |
| 1993 | case PRINT_FLAGS: |
| 1994 | case PRINT_SYMBOL: |
| 1995 | break; |
| 1996 | case PRINT_TYPE: |
| 1997 | return eval_num_arg(data, size, event, arg->typecast.item); |
| 1998 | case PRINT_STRING: |
| 1999 | return 0; |
| 2000 | break; |
| 2001 | case PRINT_OP: |
Steven Rostedt | 0959b8d | 2009-10-14 15:43:35 -0400 | [diff] [blame] | 2002 | if (strcmp(arg->op.op, "[") == 0) { |
| 2003 | /* |
| 2004 | * Arrays are special, since we don't want |
| 2005 | * to read the arg as is. |
| 2006 | */ |
| 2007 | if (arg->op.left->type != PRINT_FIELD) |
| 2008 | goto default_op; /* oops, all bets off */ |
| 2009 | larg = arg->op.left; |
| 2010 | if (!larg->field.field) { |
| 2011 | larg->field.field = |
| 2012 | find_any_field(event, larg->field.name); |
| 2013 | if (!larg->field.field) |
| 2014 | die("field %s not found", larg->field.name); |
| 2015 | } |
| 2016 | right = eval_num_arg(data, size, event, arg->op.right); |
| 2017 | val = read_size(data + larg->field.field->offset + |
| 2018 | right * long_size, long_size); |
| 2019 | break; |
| 2020 | } |
| 2021 | default_op: |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2022 | left = eval_num_arg(data, size, event, arg->op.left); |
| 2023 | right = eval_num_arg(data, size, event, arg->op.right); |
| 2024 | switch (arg->op.op[0]) { |
| 2025 | case '|': |
| 2026 | if (arg->op.op[1]) |
| 2027 | val = left || right; |
| 2028 | else |
| 2029 | val = left | right; |
| 2030 | break; |
| 2031 | case '&': |
| 2032 | if (arg->op.op[1]) |
| 2033 | val = left && right; |
| 2034 | else |
| 2035 | val = left & right; |
| 2036 | break; |
| 2037 | case '<': |
| 2038 | switch (arg->op.op[1]) { |
| 2039 | case 0: |
| 2040 | val = left < right; |
| 2041 | break; |
| 2042 | case '<': |
| 2043 | val = left << right; |
| 2044 | break; |
| 2045 | case '=': |
| 2046 | val = left <= right; |
| 2047 | break; |
| 2048 | default: |
| 2049 | die("unknown op '%s'", arg->op.op); |
| 2050 | } |
| 2051 | break; |
| 2052 | case '>': |
| 2053 | switch (arg->op.op[1]) { |
| 2054 | case 0: |
| 2055 | val = left > right; |
| 2056 | break; |
| 2057 | case '>': |
| 2058 | val = left >> right; |
| 2059 | break; |
| 2060 | case '=': |
| 2061 | val = left >= right; |
| 2062 | break; |
| 2063 | default: |
| 2064 | die("unknown op '%s'", arg->op.op); |
| 2065 | } |
| 2066 | break; |
| 2067 | case '=': |
| 2068 | if (arg->op.op[1] != '=') |
| 2069 | die("unknown op '%s'", arg->op.op); |
| 2070 | val = left == right; |
| 2071 | break; |
| 2072 | default: |
| 2073 | die("unknown op '%s'", arg->op.op); |
| 2074 | } |
| 2075 | break; |
| 2076 | default: /* not sure what to do there */ |
| 2077 | return 0; |
| 2078 | } |
| 2079 | return val; |
| 2080 | } |
| 2081 | |
| 2082 | struct flag { |
| 2083 | const char *name; |
| 2084 | unsigned long long value; |
| 2085 | }; |
| 2086 | |
| 2087 | static const struct flag flags[] = { |
| 2088 | { "HI_SOFTIRQ", 0 }, |
| 2089 | { "TIMER_SOFTIRQ", 1 }, |
| 2090 | { "NET_TX_SOFTIRQ", 2 }, |
| 2091 | { "NET_RX_SOFTIRQ", 3 }, |
| 2092 | { "BLOCK_SOFTIRQ", 4 }, |
Tom Zanussi | b934cdd | 2009-10-06 01:00:48 -0500 | [diff] [blame] | 2093 | { "BLOCK_IOPOLL_SOFTIRQ", 5 }, |
| 2094 | { "TASKLET_SOFTIRQ", 6 }, |
| 2095 | { "SCHED_SOFTIRQ", 7 }, |
| 2096 | { "HRTIMER_SOFTIRQ", 8 }, |
| 2097 | { "RCU_SOFTIRQ", 9 }, |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2098 | |
| 2099 | { "HRTIMER_NORESTART", 0 }, |
| 2100 | { "HRTIMER_RESTART", 1 }, |
| 2101 | }; |
| 2102 | |
| 2103 | static unsigned long long eval_flag(const char *flag) |
| 2104 | { |
| 2105 | int i; |
| 2106 | |
| 2107 | /* |
| 2108 | * Some flags in the format files do not get converted. |
| 2109 | * If the flag is not numeric, see if it is something that |
| 2110 | * we already know about. |
| 2111 | */ |
| 2112 | if (isdigit(flag[0])) |
| 2113 | return strtoull(flag, NULL, 0); |
| 2114 | |
| 2115 | for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) |
| 2116 | if (strcmp(flags[i].name, flag) == 0) |
| 2117 | return flags[i].value; |
| 2118 | |
| 2119 | return 0; |
| 2120 | } |
| 2121 | |
| 2122 | static void print_str_arg(void *data, int size, |
| 2123 | struct event *event, struct print_arg *arg) |
| 2124 | { |
| 2125 | struct print_flag_sym *flag; |
| 2126 | unsigned long long val, fval; |
| 2127 | char *str; |
| 2128 | int print; |
| 2129 | |
| 2130 | switch (arg->type) { |
| 2131 | case PRINT_NULL: |
| 2132 | /* ?? */ |
| 2133 | return; |
| 2134 | case PRINT_ATOM: |
| 2135 | printf("%s", arg->atom.atom); |
| 2136 | return; |
| 2137 | case PRINT_FIELD: |
| 2138 | if (!arg->field.field) { |
| 2139 | arg->field.field = find_any_field(event, arg->field.name); |
| 2140 | if (!arg->field.field) |
| 2141 | die("field %s not found", arg->field.name); |
| 2142 | } |
| 2143 | str = malloc_or_die(arg->field.field->size + 1); |
| 2144 | memcpy(str, data + arg->field.field->offset, |
| 2145 | arg->field.field->size); |
| 2146 | str[arg->field.field->size] = 0; |
Frederic Weisbecker | d498bc1 | 2009-08-28 04:46:07 +0200 | [diff] [blame] | 2147 | printf("%s", str); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2148 | free(str); |
| 2149 | break; |
| 2150 | case PRINT_FLAGS: |
| 2151 | val = eval_num_arg(data, size, event, arg->flags.field); |
| 2152 | print = 0; |
| 2153 | for (flag = arg->flags.flags; flag; flag = flag->next) { |
| 2154 | fval = eval_flag(flag->value); |
| 2155 | if (!val && !fval) { |
| 2156 | printf("%s", flag->str); |
| 2157 | break; |
| 2158 | } |
| 2159 | if (fval && (val & fval) == fval) { |
| 2160 | if (print && arg->flags.delim) |
| 2161 | printf("%s", arg->flags.delim); |
| 2162 | printf("%s", flag->str); |
| 2163 | print = 1; |
| 2164 | val &= ~fval; |
| 2165 | } |
| 2166 | } |
| 2167 | break; |
| 2168 | case PRINT_SYMBOL: |
| 2169 | val = eval_num_arg(data, size, event, arg->symbol.field); |
| 2170 | for (flag = arg->symbol.symbols; flag; flag = flag->next) { |
| 2171 | fval = eval_flag(flag->value); |
| 2172 | if (val == fval) { |
| 2173 | printf("%s", flag->str); |
| 2174 | break; |
| 2175 | } |
| 2176 | } |
| 2177 | break; |
| 2178 | |
| 2179 | case PRINT_TYPE: |
| 2180 | break; |
Frederic Weisbecker | 561f732 | 2009-08-31 06:45:21 +0200 | [diff] [blame] | 2181 | case PRINT_STRING: { |
| 2182 | int str_offset; |
| 2183 | |
| 2184 | if (arg->string.offset == -1) { |
| 2185 | struct format_field *f; |
| 2186 | |
| 2187 | f = find_any_field(event, arg->string.string); |
| 2188 | arg->string.offset = f->offset; |
| 2189 | } |
| 2190 | str_offset = *(int *)(data + arg->string.offset); |
| 2191 | str_offset &= 0xffff; |
| 2192 | printf("%s", ((char *)data) + str_offset); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2193 | break; |
Frederic Weisbecker | 561f732 | 2009-08-31 06:45:21 +0200 | [diff] [blame] | 2194 | } |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2195 | case PRINT_OP: |
| 2196 | /* |
| 2197 | * The only op for string should be ? : |
| 2198 | */ |
| 2199 | if (arg->op.op[0] != '?') |
| 2200 | return; |
| 2201 | val = eval_num_arg(data, size, event, arg->op.left); |
| 2202 | if (val) |
| 2203 | print_str_arg(data, size, event, arg->op.right->op.left); |
| 2204 | else |
| 2205 | print_str_arg(data, size, event, arg->op.right->op.right); |
| 2206 | break; |
| 2207 | default: |
| 2208 | /* well... */ |
| 2209 | break; |
| 2210 | } |
| 2211 | } |
| 2212 | |
| 2213 | static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) |
| 2214 | { |
| 2215 | static struct format_field *field, *ip_field; |
| 2216 | struct print_arg *args, *arg, **next; |
| 2217 | unsigned long long ip, val; |
| 2218 | char *ptr; |
| 2219 | void *bptr; |
| 2220 | |
| 2221 | if (!field) { |
| 2222 | field = find_field(event, "buf"); |
| 2223 | if (!field) |
| 2224 | die("can't find buffer field for binary printk"); |
| 2225 | ip_field = find_field(event, "ip"); |
| 2226 | if (!ip_field) |
| 2227 | die("can't find ip field for binary printk"); |
| 2228 | } |
| 2229 | |
| 2230 | ip = read_size(data + ip_field->offset, ip_field->size); |
| 2231 | |
| 2232 | /* |
| 2233 | * The first arg is the IP pointer. |
| 2234 | */ |
| 2235 | args = malloc_or_die(sizeof(*args)); |
| 2236 | arg = args; |
| 2237 | arg->next = NULL; |
| 2238 | next = &arg->next; |
| 2239 | |
| 2240 | arg->type = PRINT_ATOM; |
| 2241 | arg->atom.atom = malloc_or_die(32); |
| 2242 | sprintf(arg->atom.atom, "%lld", ip); |
| 2243 | |
| 2244 | /* skip the first "%pf : " */ |
| 2245 | for (ptr = fmt + 6, bptr = data + field->offset; |
| 2246 | bptr < data + size && *ptr; ptr++) { |
| 2247 | int ls = 0; |
| 2248 | |
| 2249 | if (*ptr == '%') { |
| 2250 | process_again: |
| 2251 | ptr++; |
| 2252 | switch (*ptr) { |
| 2253 | case '%': |
| 2254 | break; |
| 2255 | case 'l': |
| 2256 | ls++; |
| 2257 | goto process_again; |
| 2258 | case 'L': |
| 2259 | ls = 2; |
| 2260 | goto process_again; |
| 2261 | case '0' ... '9': |
| 2262 | goto process_again; |
| 2263 | case 'p': |
| 2264 | ls = 1; |
| 2265 | /* fall through */ |
| 2266 | case 'd': |
| 2267 | case 'u': |
| 2268 | case 'x': |
| 2269 | case 'i': |
| 2270 | bptr = (void *)(((unsigned long)bptr + (long_size - 1)) & |
| 2271 | ~(long_size - 1)); |
| 2272 | switch (ls) { |
| 2273 | case 0: |
| 2274 | case 1: |
| 2275 | ls = long_size; |
| 2276 | break; |
| 2277 | case 2: |
| 2278 | ls = 8; |
| 2279 | default: |
| 2280 | break; |
| 2281 | } |
| 2282 | val = read_size(bptr, ls); |
| 2283 | bptr += ls; |
| 2284 | arg = malloc_or_die(sizeof(*arg)); |
| 2285 | arg->next = NULL; |
| 2286 | arg->type = PRINT_ATOM; |
| 2287 | arg->atom.atom = malloc_or_die(32); |
| 2288 | sprintf(arg->atom.atom, "%lld", val); |
| 2289 | *next = arg; |
| 2290 | next = &arg->next; |
| 2291 | break; |
| 2292 | case 's': |
| 2293 | arg = malloc_or_die(sizeof(*arg)); |
| 2294 | arg->next = NULL; |
| 2295 | arg->type = PRINT_STRING; |
| 2296 | arg->string.string = strdup(bptr); |
| 2297 | bptr += strlen(bptr) + 1; |
| 2298 | *next = arg; |
| 2299 | next = &arg->next; |
| 2300 | default: |
| 2301 | break; |
| 2302 | } |
| 2303 | } |
| 2304 | } |
| 2305 | |
| 2306 | return args; |
| 2307 | } |
| 2308 | |
| 2309 | static void free_args(struct print_arg *args) |
| 2310 | { |
| 2311 | struct print_arg *next; |
| 2312 | |
| 2313 | while (args) { |
| 2314 | next = args->next; |
| 2315 | |
| 2316 | if (args->type == PRINT_ATOM) |
| 2317 | free(args->atom.atom); |
| 2318 | else |
| 2319 | free(args->string.string); |
| 2320 | free(args); |
| 2321 | args = next; |
| 2322 | } |
| 2323 | } |
| 2324 | |
| 2325 | static char *get_bprint_format(void *data, int size __unused, struct event *event) |
| 2326 | { |
| 2327 | unsigned long long addr; |
| 2328 | static struct format_field *field; |
| 2329 | struct printk_map *printk; |
| 2330 | char *format; |
| 2331 | char *p; |
| 2332 | |
| 2333 | if (!field) { |
| 2334 | field = find_field(event, "fmt"); |
| 2335 | if (!field) |
| 2336 | die("can't find format field for binary printk"); |
| 2337 | printf("field->offset = %d size=%d\n", field->offset, field->size); |
| 2338 | } |
| 2339 | |
| 2340 | addr = read_size(data + field->offset, field->size); |
| 2341 | |
| 2342 | printk = find_printk(addr); |
| 2343 | if (!printk) { |
| 2344 | format = malloc_or_die(45); |
| 2345 | sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", |
| 2346 | addr); |
| 2347 | return format; |
| 2348 | } |
| 2349 | |
| 2350 | p = printk->printk; |
| 2351 | /* Remove any quotes. */ |
| 2352 | if (*p == '"') |
| 2353 | p++; |
| 2354 | format = malloc_or_die(strlen(p) + 10); |
| 2355 | sprintf(format, "%s : %s", "%pf", p); |
| 2356 | /* remove ending quotes and new line since we will add one too */ |
| 2357 | p = format + strlen(format) - 1; |
| 2358 | if (*p == '"') |
| 2359 | *p = 0; |
| 2360 | |
| 2361 | p -= 2; |
| 2362 | if (strcmp(p, "\\n") == 0) |
| 2363 | *p = 0; |
| 2364 | |
| 2365 | return format; |
| 2366 | } |
| 2367 | |
| 2368 | static void pretty_print(void *data, int size, struct event *event) |
| 2369 | { |
| 2370 | struct print_fmt *print_fmt = &event->print_fmt; |
| 2371 | struct print_arg *arg = print_fmt->args; |
| 2372 | struct print_arg *args = NULL; |
| 2373 | const char *ptr = print_fmt->format; |
| 2374 | unsigned long long val; |
| 2375 | struct func_map *func; |
| 2376 | const char *saveptr; |
| 2377 | char *bprint_fmt = NULL; |
| 2378 | char format[32]; |
| 2379 | int show_func; |
| 2380 | int len; |
| 2381 | int ls; |
| 2382 | |
| 2383 | if (event->flags & EVENT_FL_ISFUNC) |
| 2384 | ptr = " %pF <-- %pF"; |
| 2385 | |
| 2386 | if (event->flags & EVENT_FL_ISBPRINT) { |
| 2387 | bprint_fmt = get_bprint_format(data, size, event); |
| 2388 | args = make_bprint_args(bprint_fmt, data, size, event); |
| 2389 | arg = args; |
| 2390 | ptr = bprint_fmt; |
| 2391 | } |
| 2392 | |
| 2393 | for (; *ptr; ptr++) { |
| 2394 | ls = 0; |
Steven Rostedt | 91ff2bc | 2009-10-14 15:43:33 -0400 | [diff] [blame] | 2395 | if (*ptr == '\\') { |
| 2396 | ptr++; |
| 2397 | switch (*ptr) { |
| 2398 | case 'n': |
| 2399 | printf("\n"); |
| 2400 | break; |
| 2401 | case 't': |
| 2402 | printf("\t"); |
| 2403 | break; |
| 2404 | case 'r': |
| 2405 | printf("\r"); |
| 2406 | break; |
| 2407 | case '\\': |
| 2408 | printf("\\"); |
| 2409 | break; |
| 2410 | default: |
| 2411 | printf("%c", *ptr); |
| 2412 | break; |
| 2413 | } |
| 2414 | |
| 2415 | } else if (*ptr == '%') { |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2416 | saveptr = ptr; |
| 2417 | show_func = 0; |
| 2418 | cont_process: |
| 2419 | ptr++; |
| 2420 | switch (*ptr) { |
| 2421 | case '%': |
| 2422 | printf("%%"); |
| 2423 | break; |
| 2424 | case 'l': |
| 2425 | ls++; |
| 2426 | goto cont_process; |
| 2427 | case 'L': |
| 2428 | ls = 2; |
| 2429 | goto cont_process; |
| 2430 | case 'z': |
| 2431 | case 'Z': |
| 2432 | case '0' ... '9': |
| 2433 | goto cont_process; |
| 2434 | case 'p': |
| 2435 | if (long_size == 4) |
| 2436 | ls = 1; |
| 2437 | else |
| 2438 | ls = 2; |
| 2439 | |
| 2440 | if (*(ptr+1) == 'F' || |
| 2441 | *(ptr+1) == 'f') { |
| 2442 | ptr++; |
| 2443 | show_func = *ptr; |
| 2444 | } |
| 2445 | |
| 2446 | /* fall through */ |
| 2447 | case 'd': |
| 2448 | case 'i': |
| 2449 | case 'x': |
| 2450 | case 'X': |
| 2451 | case 'u': |
| 2452 | if (!arg) |
| 2453 | die("no argument match"); |
| 2454 | |
| 2455 | len = ((unsigned long)ptr + 1) - |
| 2456 | (unsigned long)saveptr; |
| 2457 | |
| 2458 | /* should never happen */ |
| 2459 | if (len > 32) |
| 2460 | die("bad format!"); |
| 2461 | |
| 2462 | memcpy(format, saveptr, len); |
| 2463 | format[len] = 0; |
| 2464 | |
| 2465 | val = eval_num_arg(data, size, event, arg); |
| 2466 | arg = arg->next; |
| 2467 | |
| 2468 | if (show_func) { |
| 2469 | func = find_func(val); |
| 2470 | if (func) { |
| 2471 | printf("%s", func->func); |
| 2472 | if (show_func == 'F') |
| 2473 | printf("+0x%llx", |
| 2474 | val - func->addr); |
| 2475 | break; |
| 2476 | } |
| 2477 | } |
| 2478 | switch (ls) { |
| 2479 | case 0: |
| 2480 | printf(format, (int)val); |
| 2481 | break; |
| 2482 | case 1: |
| 2483 | printf(format, (long)val); |
| 2484 | break; |
| 2485 | case 2: |
| 2486 | printf(format, (long long)val); |
| 2487 | break; |
| 2488 | default: |
| 2489 | die("bad count (%d)", ls); |
| 2490 | } |
| 2491 | break; |
| 2492 | case 's': |
| 2493 | if (!arg) |
| 2494 | die("no matching argument"); |
| 2495 | |
| 2496 | print_str_arg(data, size, event, arg); |
| 2497 | arg = arg->next; |
| 2498 | break; |
| 2499 | default: |
| 2500 | printf(">%c<", *ptr); |
| 2501 | |
| 2502 | } |
| 2503 | } else |
| 2504 | printf("%c", *ptr); |
| 2505 | } |
| 2506 | |
| 2507 | if (args) { |
| 2508 | free_args(args); |
| 2509 | free(bprint_fmt); |
| 2510 | } |
| 2511 | } |
| 2512 | |
| 2513 | static inline int log10_cpu(int nb) |
| 2514 | { |
| 2515 | if (nb / 100) |
| 2516 | return 3; |
| 2517 | if (nb / 10) |
| 2518 | return 2; |
| 2519 | return 1; |
| 2520 | } |
| 2521 | |
| 2522 | /* taken from Linux, written by Frederic Weisbecker */ |
| 2523 | static void print_graph_cpu(int cpu) |
| 2524 | { |
| 2525 | int i; |
| 2526 | int log10_this = log10_cpu(cpu); |
| 2527 | int log10_all = log10_cpu(cpus); |
| 2528 | |
| 2529 | |
| 2530 | /* |
| 2531 | * Start with a space character - to make it stand out |
| 2532 | * to the right a bit when trace output is pasted into |
| 2533 | * email: |
| 2534 | */ |
| 2535 | printf(" "); |
| 2536 | |
| 2537 | /* |
| 2538 | * Tricky - we space the CPU field according to the max |
| 2539 | * number of online CPUs. On a 2-cpu system it would take |
| 2540 | * a maximum of 1 digit - on a 128 cpu system it would |
| 2541 | * take up to 3 digits: |
| 2542 | */ |
| 2543 | for (i = 0; i < log10_all - log10_this; i++) |
| 2544 | printf(" "); |
| 2545 | |
| 2546 | printf("%d) ", cpu); |
| 2547 | } |
| 2548 | |
| 2549 | #define TRACE_GRAPH_PROCINFO_LENGTH 14 |
| 2550 | #define TRACE_GRAPH_INDENT 2 |
| 2551 | |
| 2552 | static void print_graph_proc(int pid, const char *comm) |
| 2553 | { |
| 2554 | /* sign + log10(MAX_INT) + '\0' */ |
| 2555 | char pid_str[11]; |
| 2556 | int spaces = 0; |
| 2557 | int len; |
| 2558 | int i; |
| 2559 | |
| 2560 | sprintf(pid_str, "%d", pid); |
| 2561 | |
| 2562 | /* 1 stands for the "-" character */ |
| 2563 | len = strlen(comm) + strlen(pid_str) + 1; |
| 2564 | |
| 2565 | if (len < TRACE_GRAPH_PROCINFO_LENGTH) |
| 2566 | spaces = TRACE_GRAPH_PROCINFO_LENGTH - len; |
| 2567 | |
| 2568 | /* First spaces to align center */ |
| 2569 | for (i = 0; i < spaces / 2; i++) |
| 2570 | printf(" "); |
| 2571 | |
| 2572 | printf("%s-%s", comm, pid_str); |
| 2573 | |
| 2574 | /* Last spaces to align center */ |
| 2575 | for (i = 0; i < spaces - (spaces / 2); i++) |
| 2576 | printf(" "); |
| 2577 | } |
| 2578 | |
| 2579 | static struct record * |
| 2580 | get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, |
| 2581 | struct record *next) |
| 2582 | { |
| 2583 | struct format_field *field; |
| 2584 | struct event *event; |
| 2585 | unsigned long val; |
| 2586 | int type; |
| 2587 | int pid; |
| 2588 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 2589 | type = trace_parse_common_type(next->data); |
| 2590 | event = trace_find_event(type); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2591 | if (!event) |
| 2592 | return NULL; |
| 2593 | |
| 2594 | if (!(event->flags & EVENT_FL_ISFUNCRET)) |
| 2595 | return NULL; |
| 2596 | |
| 2597 | pid = parse_common_pid(next->data); |
| 2598 | field = find_field(event, "func"); |
| 2599 | if (!field) |
| 2600 | die("function return does not have field func"); |
| 2601 | |
| 2602 | val = read_size(next->data + field->offset, field->size); |
| 2603 | |
| 2604 | if (cur_pid != pid || cur_func != val) |
| 2605 | return NULL; |
| 2606 | |
| 2607 | /* this is a leaf, now advance the iterator */ |
| 2608 | return trace_read_data(cpu); |
| 2609 | } |
| 2610 | |
| 2611 | /* Signal a overhead of time execution to the output */ |
| 2612 | static void print_graph_overhead(unsigned long long duration) |
| 2613 | { |
| 2614 | /* Non nested entry or return */ |
| 2615 | if (duration == ~0ULL) |
| 2616 | return (void)printf(" "); |
| 2617 | |
| 2618 | /* Duration exceeded 100 msecs */ |
| 2619 | if (duration > 100000ULL) |
| 2620 | return (void)printf("! "); |
| 2621 | |
| 2622 | /* Duration exceeded 10 msecs */ |
| 2623 | if (duration > 10000ULL) |
| 2624 | return (void)printf("+ "); |
| 2625 | |
| 2626 | printf(" "); |
| 2627 | } |
| 2628 | |
| 2629 | static void print_graph_duration(unsigned long long duration) |
| 2630 | { |
| 2631 | unsigned long usecs = duration / 1000; |
| 2632 | unsigned long nsecs_rem = duration % 1000; |
| 2633 | /* log10(ULONG_MAX) + '\0' */ |
| 2634 | char msecs_str[21]; |
| 2635 | char nsecs_str[5]; |
| 2636 | int len; |
| 2637 | int i; |
| 2638 | |
| 2639 | sprintf(msecs_str, "%lu", usecs); |
| 2640 | |
| 2641 | /* Print msecs */ |
| 2642 | len = printf("%lu", usecs); |
| 2643 | |
| 2644 | /* Print nsecs (we don't want to exceed 7 numbers) */ |
| 2645 | if (len < 7) { |
| 2646 | snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); |
| 2647 | len += printf(".%s", nsecs_str); |
| 2648 | } |
| 2649 | |
| 2650 | printf(" us "); |
| 2651 | |
| 2652 | /* Print remaining spaces to fit the row's width */ |
| 2653 | for (i = len; i < 7; i++) |
| 2654 | printf(" "); |
| 2655 | |
| 2656 | printf("| "); |
| 2657 | } |
| 2658 | |
| 2659 | static void |
| 2660 | print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) |
| 2661 | { |
| 2662 | unsigned long long rettime, calltime; |
| 2663 | unsigned long long duration, depth; |
| 2664 | unsigned long long val; |
| 2665 | struct format_field *field; |
| 2666 | struct func_map *func; |
| 2667 | struct event *ret_event; |
| 2668 | int type; |
| 2669 | int i; |
| 2670 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 2671 | type = trace_parse_common_type(ret_rec->data); |
| 2672 | ret_event = trace_find_event(type); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2673 | |
| 2674 | field = find_field(ret_event, "rettime"); |
| 2675 | if (!field) |
| 2676 | die("can't find rettime in return graph"); |
| 2677 | rettime = read_size(ret_rec->data + field->offset, field->size); |
| 2678 | |
| 2679 | field = find_field(ret_event, "calltime"); |
| 2680 | if (!field) |
| 2681 | die("can't find rettime in return graph"); |
| 2682 | calltime = read_size(ret_rec->data + field->offset, field->size); |
| 2683 | |
| 2684 | duration = rettime - calltime; |
| 2685 | |
| 2686 | /* Overhead */ |
| 2687 | print_graph_overhead(duration); |
| 2688 | |
| 2689 | /* Duration */ |
| 2690 | print_graph_duration(duration); |
| 2691 | |
| 2692 | field = find_field(event, "depth"); |
| 2693 | if (!field) |
| 2694 | die("can't find depth in entry graph"); |
| 2695 | depth = read_size(data + field->offset, field->size); |
| 2696 | |
| 2697 | /* Function */ |
| 2698 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) |
| 2699 | printf(" "); |
| 2700 | |
| 2701 | field = find_field(event, "func"); |
| 2702 | if (!field) |
| 2703 | die("can't find func in entry graph"); |
| 2704 | val = read_size(data + field->offset, field->size); |
| 2705 | func = find_func(val); |
| 2706 | |
| 2707 | if (func) |
| 2708 | printf("%s();", func->func); |
| 2709 | else |
| 2710 | printf("%llx();", val); |
| 2711 | } |
| 2712 | |
| 2713 | static void print_graph_nested(struct event *event, void *data) |
| 2714 | { |
| 2715 | struct format_field *field; |
| 2716 | unsigned long long depth; |
| 2717 | unsigned long long val; |
| 2718 | struct func_map *func; |
| 2719 | int i; |
| 2720 | |
| 2721 | /* No overhead */ |
| 2722 | print_graph_overhead(-1); |
| 2723 | |
| 2724 | /* No time */ |
| 2725 | printf(" | "); |
| 2726 | |
| 2727 | field = find_field(event, "depth"); |
| 2728 | if (!field) |
| 2729 | die("can't find depth in entry graph"); |
| 2730 | depth = read_size(data + field->offset, field->size); |
| 2731 | |
| 2732 | /* Function */ |
| 2733 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) |
| 2734 | printf(" "); |
| 2735 | |
| 2736 | field = find_field(event, "func"); |
| 2737 | if (!field) |
| 2738 | die("can't find func in entry graph"); |
| 2739 | val = read_size(data + field->offset, field->size); |
| 2740 | func = find_func(val); |
| 2741 | |
| 2742 | if (func) |
| 2743 | printf("%s() {", func->func); |
| 2744 | else |
| 2745 | printf("%llx() {", val); |
| 2746 | } |
| 2747 | |
| 2748 | static void |
| 2749 | pretty_print_func_ent(void *data, int size, struct event *event, |
| 2750 | int cpu, int pid, const char *comm, |
| 2751 | unsigned long secs, unsigned long usecs) |
| 2752 | { |
| 2753 | struct format_field *field; |
| 2754 | struct record *rec; |
| 2755 | void *copy_data; |
| 2756 | unsigned long val; |
| 2757 | |
| 2758 | printf("%5lu.%06lu | ", secs, usecs); |
| 2759 | |
| 2760 | print_graph_cpu(cpu); |
| 2761 | print_graph_proc(pid, comm); |
| 2762 | |
| 2763 | printf(" | "); |
| 2764 | |
| 2765 | field = find_field(event, "func"); |
| 2766 | if (!field) |
| 2767 | die("function entry does not have func field"); |
| 2768 | |
| 2769 | val = read_size(data + field->offset, field->size); |
| 2770 | |
| 2771 | /* |
| 2772 | * peek_data may unmap the data pointer. Copy it first. |
| 2773 | */ |
| 2774 | copy_data = malloc_or_die(size); |
| 2775 | memcpy(copy_data, data, size); |
| 2776 | data = copy_data; |
| 2777 | |
| 2778 | rec = trace_peek_data(cpu); |
| 2779 | if (rec) { |
| 2780 | rec = get_return_for_leaf(cpu, pid, val, rec); |
| 2781 | if (rec) { |
| 2782 | print_graph_entry_leaf(event, data, rec); |
| 2783 | goto out_free; |
| 2784 | } |
| 2785 | } |
| 2786 | print_graph_nested(event, data); |
| 2787 | out_free: |
| 2788 | free(data); |
| 2789 | } |
| 2790 | |
| 2791 | static void |
| 2792 | pretty_print_func_ret(void *data, int size __unused, struct event *event, |
| 2793 | int cpu, int pid, const char *comm, |
| 2794 | unsigned long secs, unsigned long usecs) |
| 2795 | { |
| 2796 | unsigned long long rettime, calltime; |
| 2797 | unsigned long long duration, depth; |
| 2798 | struct format_field *field; |
| 2799 | int i; |
| 2800 | |
| 2801 | printf("%5lu.%06lu | ", secs, usecs); |
| 2802 | |
| 2803 | print_graph_cpu(cpu); |
| 2804 | print_graph_proc(pid, comm); |
| 2805 | |
| 2806 | printf(" | "); |
| 2807 | |
| 2808 | field = find_field(event, "rettime"); |
| 2809 | if (!field) |
| 2810 | die("can't find rettime in return graph"); |
| 2811 | rettime = read_size(data + field->offset, field->size); |
| 2812 | |
| 2813 | field = find_field(event, "calltime"); |
| 2814 | if (!field) |
| 2815 | die("can't find calltime in return graph"); |
| 2816 | calltime = read_size(data + field->offset, field->size); |
| 2817 | |
| 2818 | duration = rettime - calltime; |
| 2819 | |
| 2820 | /* Overhead */ |
| 2821 | print_graph_overhead(duration); |
| 2822 | |
| 2823 | /* Duration */ |
| 2824 | print_graph_duration(duration); |
| 2825 | |
| 2826 | field = find_field(event, "depth"); |
| 2827 | if (!field) |
| 2828 | die("can't find depth in entry graph"); |
| 2829 | depth = read_size(data + field->offset, field->size); |
| 2830 | |
| 2831 | /* Function */ |
| 2832 | for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) |
| 2833 | printf(" "); |
| 2834 | |
| 2835 | printf("}"); |
| 2836 | } |
| 2837 | |
| 2838 | static void |
| 2839 | pretty_print_func_graph(void *data, int size, struct event *event, |
| 2840 | int cpu, int pid, const char *comm, |
| 2841 | unsigned long secs, unsigned long usecs) |
| 2842 | { |
| 2843 | if (event->flags & EVENT_FL_ISFUNCENT) |
| 2844 | pretty_print_func_ent(data, size, event, |
| 2845 | cpu, pid, comm, secs, usecs); |
| 2846 | else if (event->flags & EVENT_FL_ISFUNCRET) |
| 2847 | pretty_print_func_ret(data, size, event, |
| 2848 | cpu, pid, comm, secs, usecs); |
| 2849 | printf("\n"); |
| 2850 | } |
| 2851 | |
| 2852 | void print_event(int cpu, void *data, int size, unsigned long long nsecs, |
| 2853 | char *comm) |
| 2854 | { |
| 2855 | struct event *event; |
| 2856 | unsigned long secs; |
| 2857 | unsigned long usecs; |
| 2858 | int type; |
| 2859 | int pid; |
| 2860 | |
| 2861 | secs = nsecs / NSECS_PER_SEC; |
| 2862 | nsecs -= secs * NSECS_PER_SEC; |
| 2863 | usecs = nsecs / NSECS_PER_USEC; |
| 2864 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 2865 | type = trace_parse_common_type(data); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2866 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 2867 | event = trace_find_event(type); |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 2868 | if (!event) { |
| 2869 | printf("ug! no event found for type %d\n", type); |
| 2870 | return; |
| 2871 | } |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2872 | |
| 2873 | pid = parse_common_pid(data); |
| 2874 | |
| 2875 | if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) |
| 2876 | return pretty_print_func_graph(data, size, event, cpu, |
| 2877 | pid, comm, secs, usecs); |
| 2878 | |
Ingo Molnar | 00fc978 | 2009-09-03 16:22:02 +0200 | [diff] [blame] | 2879 | printf("%16s-%-5d [%03d] %5lu.%09Lu: %s: ", |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2880 | comm, pid, cpu, |
Ingo Molnar | 00fc978 | 2009-09-03 16:22:02 +0200 | [diff] [blame] | 2881 | secs, nsecs, event->name); |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2882 | |
| 2883 | pretty_print(data, size, event); |
| 2884 | printf("\n"); |
| 2885 | } |
| 2886 | |
| 2887 | static void print_fields(struct print_flag_sym *field) |
| 2888 | { |
| 2889 | printf("{ %s, %s }", field->value, field->str); |
| 2890 | if (field->next) { |
| 2891 | printf(", "); |
| 2892 | print_fields(field->next); |
| 2893 | } |
| 2894 | } |
| 2895 | |
| 2896 | static void print_args(struct print_arg *args) |
| 2897 | { |
| 2898 | int print_paren = 1; |
| 2899 | |
| 2900 | switch (args->type) { |
| 2901 | case PRINT_NULL: |
| 2902 | printf("null"); |
| 2903 | break; |
| 2904 | case PRINT_ATOM: |
| 2905 | printf("%s", args->atom.atom); |
| 2906 | break; |
| 2907 | case PRINT_FIELD: |
| 2908 | printf("REC->%s", args->field.name); |
| 2909 | break; |
| 2910 | case PRINT_FLAGS: |
| 2911 | printf("__print_flags("); |
| 2912 | print_args(args->flags.field); |
| 2913 | printf(", %s, ", args->flags.delim); |
| 2914 | print_fields(args->flags.flags); |
| 2915 | printf(")"); |
| 2916 | break; |
| 2917 | case PRINT_SYMBOL: |
| 2918 | printf("__print_symbolic("); |
| 2919 | print_args(args->symbol.field); |
| 2920 | printf(", "); |
| 2921 | print_fields(args->symbol.symbols); |
| 2922 | printf(")"); |
| 2923 | break; |
| 2924 | case PRINT_STRING: |
| 2925 | printf("__get_str(%s)", args->string.string); |
| 2926 | break; |
| 2927 | case PRINT_TYPE: |
| 2928 | printf("(%s)", args->typecast.type); |
| 2929 | print_args(args->typecast.item); |
| 2930 | break; |
| 2931 | case PRINT_OP: |
| 2932 | if (strcmp(args->op.op, ":") == 0) |
| 2933 | print_paren = 0; |
| 2934 | if (print_paren) |
| 2935 | printf("("); |
| 2936 | print_args(args->op.left); |
| 2937 | printf(" %s ", args->op.op); |
| 2938 | print_args(args->op.right); |
| 2939 | if (print_paren) |
| 2940 | printf(")"); |
| 2941 | break; |
| 2942 | default: |
| 2943 | /* we should warn... */ |
| 2944 | return; |
| 2945 | } |
| 2946 | if (args->next) { |
| 2947 | printf("\n"); |
| 2948 | print_args(args->next); |
| 2949 | } |
| 2950 | } |
| 2951 | |
| 2952 | static void parse_header_field(char *type, |
| 2953 | int *offset, int *size) |
| 2954 | { |
| 2955 | char *token; |
| 2956 | |
| 2957 | if (read_expected(EVENT_ITEM, (char *)"field") < 0) |
| 2958 | return; |
| 2959 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 2960 | return; |
| 2961 | /* type */ |
| 2962 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 2963 | return; |
| 2964 | free_token(token); |
| 2965 | |
| 2966 | if (read_expected(EVENT_ITEM, type) < 0) |
| 2967 | return; |
| 2968 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 2969 | return; |
| 2970 | if (read_expected(EVENT_ITEM, (char *)"offset") < 0) |
| 2971 | return; |
| 2972 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 2973 | return; |
| 2974 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 2975 | return; |
| 2976 | *offset = atoi(token); |
| 2977 | free_token(token); |
| 2978 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 2979 | return; |
| 2980 | if (read_expected(EVENT_ITEM, (char *)"size") < 0) |
| 2981 | return; |
| 2982 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 2983 | return; |
| 2984 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 2985 | return; |
| 2986 | *size = atoi(token); |
| 2987 | free_token(token); |
| 2988 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 2989 | return; |
Tom Zanussi | 26a5074 | 2009-10-06 01:09:50 -0500 | [diff] [blame] | 2990 | if (read_expected(EVENT_ITEM, (char *)"signed") < 0) |
| 2991 | return; |
| 2992 | if (read_expected(EVENT_OP, (char *)":") < 0) |
| 2993 | return; |
| 2994 | if (read_expect_type(EVENT_ITEM, &token) < 0) |
| 2995 | return; |
| 2996 | free_token(token); |
| 2997 | if (read_expected(EVENT_OP, (char *)";") < 0) |
| 2998 | return; |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 2999 | if (read_expect_type(EVENT_NEWLINE, &token) < 0) |
| 3000 | return; |
| 3001 | free_token(token); |
| 3002 | } |
| 3003 | |
| 3004 | int parse_header_page(char *buf, unsigned long size) |
| 3005 | { |
| 3006 | init_input_buf(buf, size); |
| 3007 | |
| 3008 | parse_header_field((char *)"timestamp", &header_page_ts_offset, |
| 3009 | &header_page_ts_size); |
| 3010 | parse_header_field((char *)"commit", &header_page_size_offset, |
| 3011 | &header_page_size_size); |
| 3012 | parse_header_field((char *)"data", &header_page_data_offset, |
| 3013 | &header_page_data_size); |
| 3014 | |
| 3015 | return 0; |
| 3016 | } |
| 3017 | |
| 3018 | int parse_ftrace_file(char *buf, unsigned long size) |
| 3019 | { |
| 3020 | struct format_field *field; |
| 3021 | struct print_arg *arg, **list; |
| 3022 | struct event *event; |
| 3023 | int ret; |
| 3024 | |
| 3025 | init_input_buf(buf, size); |
| 3026 | |
| 3027 | event = alloc_event(); |
| 3028 | if (!event) |
| 3029 | return -ENOMEM; |
| 3030 | |
| 3031 | event->flags |= EVENT_FL_ISFTRACE; |
| 3032 | |
| 3033 | event->name = event_read_name(); |
| 3034 | if (!event->name) |
| 3035 | die("failed to read ftrace event name"); |
| 3036 | |
| 3037 | if (strcmp(event->name, "function") == 0) |
| 3038 | event->flags |= EVENT_FL_ISFUNC; |
| 3039 | |
| 3040 | else if (strcmp(event->name, "funcgraph_entry") == 0) |
| 3041 | event->flags |= EVENT_FL_ISFUNCENT; |
| 3042 | |
| 3043 | else if (strcmp(event->name, "funcgraph_exit") == 0) |
| 3044 | event->flags |= EVENT_FL_ISFUNCRET; |
| 3045 | |
| 3046 | else if (strcmp(event->name, "bprint") == 0) |
| 3047 | event->flags |= EVENT_FL_ISBPRINT; |
| 3048 | |
| 3049 | event->id = event_read_id(); |
| 3050 | if (event->id < 0) |
| 3051 | die("failed to read ftrace event id"); |
| 3052 | |
| 3053 | add_event(event); |
| 3054 | |
| 3055 | ret = event_read_format(event); |
| 3056 | if (ret < 0) |
| 3057 | die("failed to read ftrace event format"); |
| 3058 | |
| 3059 | ret = event_read_print(event); |
| 3060 | if (ret < 0) |
| 3061 | die("failed to read ftrace event print fmt"); |
| 3062 | |
| 3063 | /* |
| 3064 | * The arguments for ftrace files are parsed by the fields. |
| 3065 | * Set up the fields as their arguments. |
| 3066 | */ |
| 3067 | list = &event->print_fmt.args; |
| 3068 | for (field = event->format.fields; field; field = field->next) { |
| 3069 | arg = malloc_or_die(sizeof(*arg)); |
| 3070 | memset(arg, 0, sizeof(*arg)); |
| 3071 | *list = arg; |
| 3072 | list = &arg->next; |
| 3073 | arg->type = PRINT_FIELD; |
| 3074 | arg->field.name = field->name; |
| 3075 | arg->field.field = field; |
| 3076 | } |
| 3077 | return 0; |
| 3078 | } |
| 3079 | |
Tom Zanussi | 2774601 | 2009-10-06 01:09:51 -0500 | [diff] [blame] | 3080 | int parse_event_file(char *buf, unsigned long size, char *sys) |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 3081 | { |
| 3082 | struct event *event; |
| 3083 | int ret; |
| 3084 | |
| 3085 | init_input_buf(buf, size); |
| 3086 | |
| 3087 | event = alloc_event(); |
| 3088 | if (!event) |
| 3089 | return -ENOMEM; |
| 3090 | |
| 3091 | event->name = event_read_name(); |
| 3092 | if (!event->name) |
| 3093 | die("failed to read event name"); |
| 3094 | |
| 3095 | event->id = event_read_id(); |
| 3096 | if (event->id < 0) |
| 3097 | die("failed to read event id"); |
| 3098 | |
| 3099 | ret = event_read_format(event); |
| 3100 | if (ret < 0) |
| 3101 | die("failed to read event format"); |
| 3102 | |
| 3103 | ret = event_read_print(event); |
| 3104 | if (ret < 0) |
| 3105 | die("failed to read event print fmt"); |
| 3106 | |
Tom Zanussi | 2774601 | 2009-10-06 01:09:51 -0500 | [diff] [blame] | 3107 | event->system = strdup(sys); |
| 3108 | |
Steven Rostedt | ea4010d | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 3109 | #define PRINT_ARGS 0 |
| 3110 | if (PRINT_ARGS && event->print_fmt.args) |
| 3111 | print_args(event->print_fmt.args); |
| 3112 | |
| 3113 | add_event(event); |
| 3114 | return 0; |
| 3115 | } |
| 3116 | |
| 3117 | void parse_set_info(int nr_cpus, int long_sz) |
| 3118 | { |
| 3119 | cpus = nr_cpus; |
| 3120 | long_size = long_sz; |
| 3121 | } |