Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 1 | /** |
| 2 | * @file op_events.c |
| 3 | * Details of PMC profiling events |
| 4 | * |
| 5 | * You can have silliness here. |
| 6 | * |
| 7 | * @remark Copyright 2002 OProfile authors |
| 8 | * @remark Read the file COPYING |
| 9 | * |
| 10 | * @author John Levon |
| 11 | * @author Philippe Elie |
| 12 | */ |
| 13 | |
| 14 | #include "op_events.h" |
| 15 | #include "op_libiberty.h" |
| 16 | #include "op_fileio.h" |
| 17 | #include "op_string.h" |
| 18 | #include "op_cpufreq.h" |
| 19 | |
| 20 | #include <string.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | static LIST_HEAD(events_list); |
| 25 | static LIST_HEAD(um_list); |
| 26 | |
| 27 | static char const * filename; |
| 28 | static unsigned int line_nr; |
| 29 | |
| 30 | static void parse_error(char const * context) |
| 31 | { |
| 32 | fprintf(stderr, "oprofile: parse error in %s, line %u\n", |
| 33 | filename, line_nr); |
| 34 | fprintf(stderr, "%s\n", context); |
| 35 | exit(EXIT_FAILURE); |
| 36 | } |
| 37 | |
| 38 | |
| 39 | static int parse_int(char const * str) |
| 40 | { |
| 41 | int value; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 42 | if (sscanf(str, "%d", &value) != 1) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 43 | parse_error("expected decimal value"); |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 44 | |
| 45 | return value; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | static int parse_hex(char const * str) |
| 50 | { |
| 51 | int value; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 52 | /* 0x/0X to force the use of hexa notation for field intended to |
| 53 | be in hexadecimal */ |
| 54 | if (sscanf(str, "0x%x", &value) != 1 && |
| 55 | sscanf(str, "0X%x", &value) != 1) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 56 | parse_error("expected hexadecimal value"); |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 57 | |
| 58 | return value; |
| 59 | } |
| 60 | |
| 61 | |
| 62 | static u64 parse_long_hex(char const * str) |
| 63 | { |
| 64 | u64 value; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 65 | if (sscanf(str, "%Lx", &value) != 1) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 66 | parse_error("expected long hexadecimal value"); |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 67 | |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 68 | fflush(stderr); |
| 69 | return value; |
| 70 | } |
| 71 | |
| 72 | |
| 73 | /* name:MESI type:bitmask default:0x0f */ |
| 74 | static void parse_um(struct op_unit_mask * um, char const * line) |
| 75 | { |
| 76 | int seen_name = 0; |
| 77 | int seen_type = 0; |
| 78 | int seen_default = 0; |
| 79 | char const * valueend = line + 1; |
| 80 | char const * tagend = line + 1; |
| 81 | char const * start = line; |
| 82 | |
| 83 | while (*valueend) { |
| 84 | valueend = skip_nonws(valueend); |
| 85 | |
| 86 | while (*tagend != ':' && *tagend) |
| 87 | ++tagend; |
| 88 | |
| 89 | if (valueend == tagend) |
| 90 | break; |
| 91 | |
| 92 | if (!*tagend) |
| 93 | parse_error("parse_um() expected :value"); |
| 94 | |
| 95 | ++tagend; |
| 96 | |
| 97 | if (strisprefix(start, "name")) { |
| 98 | if (seen_name) |
| 99 | parse_error("duplicate name: tag"); |
| 100 | seen_name = 1; |
| 101 | um->name = op_xstrndup(tagend, valueend - tagend); |
| 102 | } else if (strisprefix(start, "type")) { |
| 103 | if (seen_type) |
| 104 | parse_error("duplicate type: tag"); |
| 105 | seen_type = 1; |
| 106 | if (strisprefix(tagend, "mandatory")) { |
| 107 | um->unit_type_mask = utm_mandatory; |
| 108 | } else if (strisprefix(tagend, "bitmask")) { |
| 109 | um->unit_type_mask = utm_bitmask; |
| 110 | } else if (strisprefix(tagend, "exclusive")) { |
| 111 | um->unit_type_mask = utm_exclusive; |
| 112 | } else { |
| 113 | parse_error("invalid unit mask type"); |
| 114 | } |
| 115 | } else if (strisprefix(start, "default")) { |
| 116 | if (seen_default) |
| 117 | parse_error("duplicate default: tag"); |
| 118 | seen_default = 1; |
| 119 | um->default_mask = parse_hex(tagend); |
| 120 | } else { |
| 121 | parse_error("invalid unit mask tag"); |
| 122 | } |
| 123 | |
| 124 | valueend = skip_ws(valueend); |
| 125 | tagend = valueend; |
| 126 | start = valueend; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | |
| 131 | /* \t0x08 (M)odified cache state */ |
| 132 | static void parse_um_entry(struct op_described_um * entry, char const * line) |
| 133 | { |
| 134 | char const * c = line; |
| 135 | |
| 136 | c = skip_ws(c); |
| 137 | entry->value = parse_hex(c); |
| 138 | c = skip_nonws(c); |
| 139 | |
| 140 | if (!*c) |
| 141 | parse_error("invalid unit mask entry"); |
| 142 | |
| 143 | c = skip_ws(c); |
| 144 | |
| 145 | if (!*c) |
| 146 | parse_error("invalid unit mask entry"); |
| 147 | |
| 148 | entry->desc = xstrdup(c); |
| 149 | } |
| 150 | |
| 151 | |
| 152 | static struct op_unit_mask * new_unit_mask(void) |
| 153 | { |
| 154 | struct op_unit_mask * um = xmalloc(sizeof(struct op_unit_mask)); |
| 155 | memset(um, '\0', sizeof(struct op_unit_mask)); |
| 156 | list_add_tail(&um->um_next, &um_list); |
| 157 | |
| 158 | return um; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | /* |
| 163 | * name:zero type:mandatory default:0x0 |
| 164 | * \t0x0 No unit mask |
| 165 | */ |
| 166 | static void read_unit_masks(char const * file) |
| 167 | { |
| 168 | struct op_unit_mask * um = NULL; |
| 169 | char * line; |
| 170 | FILE * fp = fopen(file, "r"); |
| 171 | |
| 172 | if (!fp) { |
| 173 | fprintf(stderr, |
| 174 | "oprofile: could not open unit mask description file %s\n", file); |
| 175 | exit(EXIT_FAILURE); |
| 176 | } |
| 177 | |
| 178 | filename = file; |
| 179 | line_nr = 1; |
| 180 | |
| 181 | line = op_get_line(fp); |
| 182 | |
| 183 | while (line) { |
| 184 | if (empty_line(line) || comment_line(line)) |
| 185 | goto next; |
| 186 | |
| 187 | if (line[0] != '\t') { |
| 188 | um = new_unit_mask(); |
| 189 | parse_um(um, line); |
| 190 | } else { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 191 | if (!um) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 192 | parse_error("no unit mask name line"); |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 193 | if (um->num >= MAX_UNIT_MASK) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 194 | parse_error("oprofile: maximum unit mask entries exceeded"); |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 195 | |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 196 | parse_um_entry(&um->um[um->num], line); |
| 197 | ++(um->num); |
| 198 | } |
| 199 | |
| 200 | next: |
| 201 | free(line); |
| 202 | line = op_get_line(fp); |
| 203 | ++line_nr; |
| 204 | } |
| 205 | |
| 206 | fclose(fp); |
| 207 | } |
| 208 | |
| 209 | |
| 210 | static u32 parse_counter_mask(char const * str) |
| 211 | { |
| 212 | u32 mask = 0; |
| 213 | char const * numstart = str; |
| 214 | |
| 215 | while (*numstart) { |
| 216 | mask |= 1 << parse_int(numstart); |
| 217 | |
| 218 | while (*numstart && *numstart != ',') |
| 219 | ++numstart; |
| 220 | /* skip , unless we reach eos */ |
| 221 | if (*numstart) |
| 222 | ++numstart; |
| 223 | |
| 224 | numstart = skip_ws(numstart); |
| 225 | } |
| 226 | |
| 227 | return mask; |
| 228 | } |
| 229 | |
| 230 | |
| 231 | static struct op_unit_mask * find_um(char const * value) |
| 232 | { |
| 233 | struct list_head * pos; |
| 234 | |
| 235 | list_for_each(pos, &um_list) { |
| 236 | struct op_unit_mask * um = list_entry(pos, struct op_unit_mask, um_next); |
| 237 | if (strcmp(value, um->name) == 0) |
| 238 | return um; |
| 239 | } |
| 240 | |
| 241 | fprintf(stderr, "oprofile: could not find unit mask %s\n", value); |
| 242 | exit(EXIT_FAILURE); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | /* parse either a "tag:value" or a ": trailing description string" */ |
| 247 | static int next_token(char const ** cp, char ** name, char ** value) |
| 248 | { |
| 249 | size_t tag_len; |
| 250 | size_t val_len; |
| 251 | char const * c = *cp; |
| 252 | char const * end; |
| 253 | char const * colon; |
| 254 | |
| 255 | c = skip_ws(c); |
| 256 | end = colon = c; |
| 257 | end = skip_nonws(end); |
| 258 | |
| 259 | colon = strchr(colon, ':'); |
| 260 | |
| 261 | if (!colon) { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 262 | if (*c) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 263 | parse_error("next_token(): garbage at end of line"); |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 264 | return 0; |
| 265 | } |
| 266 | |
| 267 | if (colon >= end) |
| 268 | parse_error("next_token() expected ':'"); |
| 269 | |
| 270 | tag_len = colon - c; |
| 271 | val_len = end - (colon + 1); |
| 272 | |
| 273 | if (!tag_len) { |
| 274 | /* : trailing description */ |
| 275 | end = skip_ws(end); |
| 276 | *name = xstrdup("desc"); |
| 277 | *value = xstrdup(end); |
| 278 | end += strlen(end); |
| 279 | } else { |
| 280 | /* tag:value */ |
| 281 | *name = op_xstrndup(c, tag_len); |
| 282 | *value = op_xstrndup(colon + 1, val_len); |
| 283 | end = skip_ws(end); |
| 284 | } |
| 285 | |
| 286 | *cp = end; |
| 287 | return 1; |
| 288 | } |
| 289 | |
| 290 | |
| 291 | static struct op_event * new_event(void) |
| 292 | { |
| 293 | struct op_event * event = xmalloc(sizeof(struct op_event)); |
| 294 | memset(event, '\0', sizeof(struct op_event)); |
| 295 | list_add_tail(&event->event_next, &events_list); |
| 296 | |
| 297 | return event; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /* event:0x00 counters:0 um:zero minimum:4096 name:ISSUES : Total issues */ |
| 302 | static void read_events(char const * file) |
| 303 | { |
| 304 | struct op_event * event = NULL; |
| 305 | char * line; |
| 306 | char * name; |
| 307 | char * value; |
| 308 | char const * c; |
| 309 | int seen_event, seen_counters, seen_um, seen_minimum, seen_name; |
| 310 | FILE * fp = fopen(file, "r"); |
| 311 | |
| 312 | if (!fp) { |
| 313 | fprintf(stderr, "oprofile: could not open event description file %s\n", file); |
| 314 | exit(EXIT_FAILURE); |
| 315 | } |
| 316 | |
| 317 | filename = file; |
| 318 | line_nr = 1; |
| 319 | |
| 320 | line = op_get_line(fp); |
| 321 | |
| 322 | while (line) { |
| 323 | if (empty_line(line) || comment_line(line)) |
| 324 | goto next; |
| 325 | |
| 326 | seen_name = 0; |
| 327 | seen_event = 0; |
| 328 | seen_counters = 0; |
| 329 | seen_um = 0; |
| 330 | seen_minimum = 0; |
| 331 | event = new_event(); |
| 332 | |
| 333 | c = line; |
| 334 | while (next_token(&c, &name, &value)) { |
| 335 | if (strcmp(name, "name") == 0) { |
| 336 | if (seen_name) |
| 337 | parse_error("duplicate name: tag"); |
| 338 | seen_name = 1; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 339 | if (strchr(value, '/') != NULL) |
| 340 | parse_error("invalid event name"); |
| 341 | if (strchr(value, '.') != NULL) |
| 342 | parse_error("invalid event name"); |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 343 | event->name = value; |
| 344 | } else if (strcmp(name, "event") == 0) { |
| 345 | if (seen_event) |
| 346 | parse_error("duplicate event: tag"); |
| 347 | seen_event = 1; |
| 348 | event->val = parse_hex(value); |
| 349 | free(value); |
| 350 | } else if (strcmp(name, "counters") == 0) { |
| 351 | if (seen_counters) |
| 352 | parse_error("duplicate counters: tag"); |
| 353 | seen_counters = 1; |
| 354 | event->counter_mask = parse_counter_mask(value); |
| 355 | free(value); |
| 356 | } else if (strcmp(name, "um") == 0) { |
| 357 | if (seen_um) |
| 358 | parse_error("duplicate um: tag"); |
| 359 | seen_um = 1; |
| 360 | event->unit = find_um(value); |
| 361 | event->unit->used = 1; |
| 362 | free(value); |
| 363 | } else if (strcmp(name, "minimum") == 0) { |
| 364 | if (seen_minimum) |
| 365 | parse_error("duplicate minimum: tag"); |
| 366 | seen_minimum = 1; |
| 367 | event->min_count = parse_int(value); |
| 368 | free(value); |
| 369 | } else if (strcmp(name, "desc") == 0) { |
| 370 | event->desc = value; |
| 371 | } else { |
| 372 | parse_error("unknown tag"); |
| 373 | } |
| 374 | |
| 375 | free(name); |
| 376 | } |
| 377 | next: |
| 378 | free(line); |
| 379 | line = op_get_line(fp); |
| 380 | ++line_nr; |
| 381 | } |
| 382 | |
| 383 | fclose(fp); |
| 384 | } |
| 385 | |
| 386 | |
| 387 | /* usefull for make check */ |
| 388 | static void check_unit_mask(struct op_unit_mask const * um, |
| 389 | char const * cpu_name) |
| 390 | { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 391 | u32 i; |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 392 | |
| 393 | if (!um->used) { |
| 394 | fprintf(stderr, "um %s is not used\n", um->name); |
| 395 | exit(EXIT_FAILURE); |
| 396 | } |
| 397 | |
| 398 | if (um->unit_type_mask == utm_mandatory && um->num != 1) { |
| 399 | fprintf(stderr, "mandatory um %s doesn't contain exactly one " |
| 400 | "entry (%s)\n", um->name, cpu_name); |
| 401 | exit(EXIT_FAILURE); |
| 402 | } else if (um->unit_type_mask == utm_bitmask) { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 403 | u32 default_mask = um->default_mask; |
| 404 | for (i = 0; i < um->num; ++i) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 405 | default_mask &= ~um->um[i].value; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 406 | |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 407 | if (default_mask) { |
| 408 | fprintf(stderr, "um %s default mask is not valid " |
| 409 | "(%s)\n", um->name, cpu_name); |
| 410 | exit(EXIT_FAILURE); |
| 411 | } |
| 412 | } else { |
| 413 | for (i = 0; i < um->num; ++i) { |
| 414 | if (um->default_mask == um->um[i].value) |
| 415 | break; |
| 416 | } |
| 417 | |
| 418 | if (i == um->num) { |
| 419 | fprintf(stderr, "exclusive um %s default value is not " |
| 420 | "valid (%s)\n", um->name, cpu_name); |
| 421 | exit(EXIT_FAILURE); |
| 422 | } |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | |
| 427 | static void load_events(op_cpu cpu_type) |
| 428 | { |
| 429 | char const * cpu_name = op_get_cpu_name(cpu_type); |
| 430 | char * event_dir; |
| 431 | char * event_file; |
| 432 | char * um_file; |
| 433 | char * dir; |
| 434 | struct list_head * pos; |
| 435 | |
| 436 | if (!list_empty(&events_list)) |
| 437 | return; |
| 438 | |
| 439 | dir = getenv("OPROFILE_EVENTS_DIR"); |
| 440 | if (dir == NULL) |
| 441 | dir = OP_DATADIR; |
| 442 | |
| 443 | event_dir = xmalloc(strlen(dir) + strlen("/") + strlen(cpu_name) + |
| 444 | strlen("/") + 1); |
| 445 | strcpy(event_dir, dir); |
| 446 | strcat(event_dir, "/"); |
| 447 | |
| 448 | strcat(event_dir, cpu_name); |
| 449 | strcat(event_dir, "/"); |
| 450 | |
| 451 | event_file = xmalloc(strlen(event_dir) + strlen("events") + 1); |
| 452 | strcpy(event_file, event_dir); |
| 453 | strcat(event_file, "events"); |
| 454 | |
| 455 | um_file = xmalloc(strlen(event_dir) + strlen("unit_masks") + 1); |
| 456 | strcpy(um_file, event_dir); |
| 457 | strcat(um_file, "unit_masks"); |
| 458 | |
| 459 | read_unit_masks(um_file); |
| 460 | read_events(event_file); |
| 461 | |
| 462 | /* sanity check: all unit mask must be used */ |
| 463 | list_for_each(pos, &um_list) { |
| 464 | struct op_unit_mask * um = list_entry(pos, struct op_unit_mask, um_next); |
| 465 | |
| 466 | check_unit_mask(um, cpu_name); |
| 467 | } |
| 468 | |
| 469 | free(um_file); |
| 470 | free(event_file); |
| 471 | free(event_dir); |
| 472 | } |
| 473 | |
| 474 | |
| 475 | struct list_head * op_events(op_cpu cpu_type) |
| 476 | { |
| 477 | load_events(cpu_type); |
| 478 | return &events_list; |
| 479 | } |
| 480 | |
| 481 | |
| 482 | static void delete_unit_mask(struct op_unit_mask * unit) |
| 483 | { |
| 484 | u32 cur; |
| 485 | for (cur = 0 ; cur < unit->num ; ++cur) { |
| 486 | if (unit->um[cur].desc) |
| 487 | free(unit->um[cur].desc); |
| 488 | } |
| 489 | |
| 490 | if (unit->name) |
| 491 | free(unit->name); |
| 492 | |
| 493 | list_del(&unit->um_next); |
| 494 | free(unit); |
| 495 | } |
| 496 | |
| 497 | |
| 498 | static void delete_event(struct op_event * event) |
| 499 | { |
| 500 | if (event->name) |
| 501 | free(event->name); |
| 502 | if (event->desc) |
| 503 | free(event->desc); |
| 504 | |
| 505 | list_del(&event->event_next); |
| 506 | free(event); |
| 507 | } |
| 508 | |
| 509 | |
| 510 | void op_free_events(void) |
| 511 | { |
| 512 | struct list_head * pos, * pos2; |
| 513 | list_for_each_safe(pos, pos2, &events_list) { |
| 514 | struct op_event * event = list_entry(pos, struct op_event, event_next); |
| 515 | delete_event(event); |
| 516 | } |
| 517 | |
| 518 | list_for_each_safe(pos, pos2, &um_list) { |
| 519 | struct op_unit_mask * unit = list_entry(pos, struct op_unit_mask, um_next); |
| 520 | delete_unit_mask(unit); |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 525 | static struct op_event * find_event(u32 nr) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 526 | { |
| 527 | struct list_head * pos; |
| 528 | |
| 529 | list_for_each(pos, &events_list) { |
| 530 | struct op_event * event = list_entry(pos, struct op_event, event_next); |
| 531 | if (event->val == nr) |
| 532 | return event; |
| 533 | } |
| 534 | |
| 535 | return NULL; |
| 536 | } |
| 537 | |
| 538 | |
| 539 | static FILE * open_event_mapping_file(char const * cpu_name) |
| 540 | { |
| 541 | char * ev_map_file; |
| 542 | char * dir; |
| 543 | dir = getenv("OPROFILE_EVENTS_DIR"); |
| 544 | if (dir == NULL) |
| 545 | dir = OP_DATADIR; |
| 546 | |
| 547 | ev_map_file = xmalloc(strlen(dir) + strlen("/") + strlen(cpu_name) + |
| 548 | strlen("/") + + strlen("event_mappings") + 1); |
| 549 | strcpy(ev_map_file, dir); |
| 550 | strcat(ev_map_file, "/"); |
| 551 | |
| 552 | strcat(ev_map_file, cpu_name); |
| 553 | strcat(ev_map_file, "/"); |
| 554 | strcat(ev_map_file, "event_mappings"); |
| 555 | filename = ev_map_file; |
| 556 | return (fopen(ev_map_file, "r")); |
| 557 | } |
| 558 | |
| 559 | |
| 560 | /** |
| 561 | * This function is PPC64-specific. |
| 562 | */ |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 563 | static char const * get_mapping(u32 nr, FILE * fp) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 564 | { |
| 565 | char * line; |
| 566 | char * name; |
| 567 | char * value; |
| 568 | char const * c; |
| 569 | char * map = NULL; |
| 570 | int seen_event = 0, seen_mmcr0 = 0, seen_mmcr1 = 0, seen_mmcra = 0; |
| 571 | u32 mmcr0 = 0; |
| 572 | u64 mmcr1 = 0; |
| 573 | u32 mmcra = 0; |
| 574 | int event_found = 0; |
| 575 | |
| 576 | line_nr = 1; |
| 577 | line = op_get_line(fp); |
| 578 | while (line && !event_found) { |
| 579 | if (empty_line(line) || comment_line(line)) |
| 580 | goto next; |
| 581 | |
| 582 | seen_event = 0; |
| 583 | seen_mmcr0 = 0; |
| 584 | seen_mmcr1 = 0; |
| 585 | seen_mmcra = 0; |
| 586 | mmcr0 = 0; |
| 587 | mmcr1 = 0; |
| 588 | mmcra = 0; |
| 589 | |
| 590 | c = line; |
| 591 | while (next_token(&c, &name, &value)) { |
| 592 | if (strcmp(name, "event") == 0) { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 593 | u32 evt; |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 594 | if (seen_event) |
| 595 | parse_error("duplicate event tag"); |
| 596 | seen_event = 1; |
| 597 | evt = parse_hex(value); |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 598 | if (evt == nr) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 599 | event_found = 1; |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 600 | free(value); |
| 601 | } else if (strcmp(name, "mmcr0") == 0) { |
| 602 | if (seen_mmcr0) |
| 603 | parse_error("duplicate mmcr0 tag"); |
| 604 | seen_mmcr0 = 1; |
| 605 | mmcr0 = parse_hex(value); |
| 606 | free(value); |
| 607 | } else if (strcmp(name, "mmcr1") == 0) { |
| 608 | if (seen_mmcr1) |
| 609 | parse_error("duplicate mmcr1: tag"); |
| 610 | seen_mmcr1 = 1; |
| 611 | mmcr1 = parse_long_hex(value); |
| 612 | free(value); |
| 613 | } else if (strcmp(name, "mmcra") == 0) { |
| 614 | if (seen_mmcra) |
| 615 | parse_error("duplicate mmcra: tag"); |
| 616 | seen_mmcra = 1; |
| 617 | mmcra = parse_hex(value); |
| 618 | free(value); |
| 619 | } else { |
| 620 | parse_error("unknown tag"); |
| 621 | } |
| 622 | |
| 623 | free(name); |
| 624 | } |
| 625 | next: |
| 626 | free(line); |
| 627 | line = op_get_line(fp); |
| 628 | ++line_nr; |
| 629 | } |
| 630 | if (event_found) { |
| 631 | if (!seen_mmcr0 || !seen_mmcr1 || !seen_mmcra) { |
| 632 | fprintf(stderr, "Error: Missing information in line %d of event mapping file %s\n", line_nr, filename); |
| 633 | exit(EXIT_FAILURE); |
| 634 | } |
| 635 | map = xmalloc(70); |
| 636 | snprintf(map, 70, "mmcr0:%u mmcr1:%Lu mmcra:%u", |
| 637 | mmcr0, mmcr1, mmcra); |
| 638 | } |
| 639 | |
| 640 | return map; |
| 641 | } |
| 642 | |
| 643 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 644 | char const * find_mapping_for_event(u32 nr, op_cpu cpu_type) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 645 | { |
| 646 | char const * cpu_name = op_get_cpu_name(cpu_type); |
| 647 | FILE * fp = open_event_mapping_file(cpu_name); |
| 648 | char const * map = NULL; |
| 649 | switch (cpu_type) { |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 650 | case CPU_PPC64_PA6T: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 651 | case CPU_PPC64_970: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 652 | case CPU_PPC64_970MP: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 653 | case CPU_PPC64_POWER4: |
| 654 | case CPU_PPC64_POWER5: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 655 | case CPU_PPC64_POWER5p: |
| 656 | case CPU_PPC64_POWER5pp: |
| 657 | case CPU_PPC64_POWER6: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 658 | if (!fp) { |
| 659 | fprintf(stderr, "oprofile: could not open event mapping file %s\n", filename); |
| 660 | exit(EXIT_FAILURE); |
| 661 | } else { |
| 662 | map = get_mapping(nr, fp); |
| 663 | } |
| 664 | break; |
| 665 | default: |
| 666 | break; |
| 667 | } |
| 668 | |
| 669 | if (fp) |
| 670 | fclose(fp); |
| 671 | |
| 672 | return map; |
| 673 | } |
| 674 | |
| 675 | |
| 676 | struct op_event * find_event_by_name(char const * name) |
| 677 | { |
| 678 | struct list_head * pos; |
| 679 | |
| 680 | list_for_each(pos, &events_list) { |
| 681 | struct op_event * event = list_entry(pos, struct op_event, event_next); |
| 682 | if (strcmp(event->name, name) == 0) |
| 683 | return event; |
| 684 | } |
| 685 | |
| 686 | return NULL; |
| 687 | } |
| 688 | |
| 689 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 690 | struct op_event * op_find_event(op_cpu cpu_type, u32 nr) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 691 | { |
| 692 | struct op_event * event; |
| 693 | |
| 694 | load_events(cpu_type); |
| 695 | |
| 696 | event = find_event(nr); |
| 697 | |
| 698 | return event; |
| 699 | } |
| 700 | |
| 701 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 702 | int op_check_events(int ctr, u32 nr, u32 um, op_cpu cpu_type) |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 703 | { |
| 704 | int ret = OP_OK_EVENT; |
| 705 | struct op_event * event; |
| 706 | size_t i; |
| 707 | u32 ctr_mask = 1 << ctr; |
| 708 | |
| 709 | load_events(cpu_type); |
| 710 | |
| 711 | event = find_event(nr); |
| 712 | |
| 713 | if (!event) { |
| 714 | ret |= OP_INVALID_EVENT; |
| 715 | return ret; |
| 716 | } |
| 717 | |
| 718 | if ((event->counter_mask & ctr_mask) == 0) |
| 719 | ret |= OP_INVALID_COUNTER; |
| 720 | |
| 721 | if (event->unit->unit_type_mask == utm_bitmask) { |
| 722 | for (i = 0; i < event->unit->num; ++i) |
| 723 | um &= ~(event->unit->um[i].value); |
| 724 | |
| 725 | if (um) |
| 726 | ret |= OP_INVALID_UM; |
| 727 | |
| 728 | } else { |
| 729 | for (i = 0; i < event->unit->num; ++i) { |
| 730 | if (event->unit->um[i].value == um) |
| 731 | break; |
| 732 | } |
| 733 | |
| 734 | if (i == event->unit->num) |
| 735 | ret |= OP_INVALID_UM; |
| 736 | } |
| 737 | |
| 738 | return ret; |
| 739 | } |
| 740 | |
| 741 | |
| 742 | void op_default_event(op_cpu cpu_type, struct op_default_event_descr * descr) |
| 743 | { |
| 744 | descr->name = ""; |
| 745 | descr->um = 0x0; |
| 746 | /* A fixed value of CPU cycles; this should ensure good |
| 747 | * granulity even on faster CPUs, though it will generate more |
| 748 | * interrupts. |
| 749 | */ |
| 750 | descr->count = 100000; |
| 751 | |
| 752 | switch (cpu_type) { |
| 753 | case CPU_PPRO: |
| 754 | case CPU_PII: |
| 755 | case CPU_PIII: |
| 756 | case CPU_P6_MOBILE: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 757 | case CPU_CORE: |
| 758 | case CPU_CORE_2: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 759 | case CPU_ATHLON: |
| 760 | case CPU_HAMMER: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 761 | case CPU_FAMILY10: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 762 | descr->name = "CPU_CLK_UNHALTED"; |
| 763 | break; |
| 764 | |
| 765 | case CPU_RTC: |
| 766 | descr->name = "RTC_INTERRUPTS"; |
| 767 | descr->count = 1024; |
| 768 | break; |
| 769 | |
| 770 | case CPU_P4: |
| 771 | case CPU_P4_HT2: |
| 772 | descr->name = "GLOBAL_POWER_EVENTS"; |
| 773 | descr->um = 0x1; |
| 774 | break; |
| 775 | |
| 776 | case CPU_IA64: |
| 777 | case CPU_IA64_1: |
| 778 | case CPU_IA64_2: |
| 779 | descr->count = 1000000; |
| 780 | descr->name = "CPU_CYCLES"; |
| 781 | break; |
| 782 | |
| 783 | case CPU_AXP_EV4: |
| 784 | case CPU_AXP_EV5: |
| 785 | case CPU_AXP_PCA56: |
| 786 | case CPU_AXP_EV6: |
| 787 | case CPU_AXP_EV67: |
| 788 | descr->name = "CYCLES"; |
| 789 | break; |
| 790 | |
| 791 | // we could possibly use the CCNT |
| 792 | case CPU_ARM_XSCALE1: |
| 793 | case CPU_ARM_XSCALE2: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 794 | case CPU_ARM_MPCORE: |
| 795 | case CPU_ARM_V6: |
| 796 | case CPU_AVR32: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 797 | descr->name = "CPU_CYCLES"; |
| 798 | break; |
| 799 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 800 | case CPU_PPC64_PA6T: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 801 | case CPU_PPC64_970: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 802 | case CPU_PPC64_970MP: |
| 803 | case CPU_PPC_7450: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 804 | case CPU_PPC64_POWER4: |
| 805 | case CPU_PPC64_POWER5: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 806 | case CPU_PPC64_POWER6: |
| 807 | case CPU_PPC64_POWER5p: |
| 808 | case CPU_PPC64_POWER5pp: |
| 809 | case CPU_PPC64_CELL: |
| 810 | descr->name = "CYCLES"; |
| 811 | break; |
| 812 | |
| 813 | case CPU_MIPS_20K: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 814 | descr->name = "CYCLES"; |
| 815 | break; |
| 816 | |
| 817 | case CPU_MIPS_24K: |
| 818 | descr->name = "INSTRUCTIONS"; |
| 819 | break; |
| 820 | |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 821 | case CPU_MIPS_34K: |
| 822 | descr->name = "INSTRUCTIONS"; |
| 823 | break; |
| 824 | |
| 825 | case CPU_MIPS_5K: |
| 826 | case CPU_MIPS_25K: |
| 827 | descr->name = "CYCLES"; |
| 828 | break; |
| 829 | |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 830 | case CPU_MIPS_R10000: |
| 831 | case CPU_MIPS_R12000: |
| 832 | descr->name = "INSTRUCTIONS_GRADUATED"; |
| 833 | break; |
| 834 | |
| 835 | case CPU_MIPS_RM7000: |
| 836 | case CPU_MIPS_RM9000: |
| 837 | descr->name = "INSTRUCTIONS_ISSUED"; |
| 838 | break; |
| 839 | |
| 840 | case CPU_MIPS_SB1: |
| 841 | descr->name = "INSN_SURVIVED_STAGE7"; |
| 842 | break; |
| 843 | |
| 844 | case CPU_MIPS_VR5432: |
| 845 | case CPU_MIPS_VR5500: |
| 846 | descr->name = "INSTRUCTIONS_EXECUTED"; |
| 847 | break; |
| 848 | |
| 849 | case CPU_PPC_E500: |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 850 | case CPU_PPC_E500_2: |
| 851 | case CPU_PPC_E300: |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 852 | descr->name = "CPU_CLK"; |
| 853 | break; |
The Android Open Source Project | 7984f7a | 2008-12-17 18:04:47 -0800 | [diff] [blame^] | 854 | |
Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame] | 855 | // don't use default, if someone add a cpu he wants a compiler |
| 856 | // warning if he forgets to handle it here. |
| 857 | case CPU_TIMER_INT: |
| 858 | case CPU_NO_GOOD: |
| 859 | case MAX_CPU_TYPE: |
| 860 | break; |
| 861 | } |
| 862 | } |