1 /* 2 * Copyright 2016 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 */ 23 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <stdint.h> 27 #include <getopt.h> 28 29 #include <unistd.h> 30 #include <fcntl.h> 31 #include <string.h> 32 #include <signal.h> 33 #include <errno.h> 34 #include <inttypes.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include <sys/wait.h> 38 #include <sys/mman.h> 39 40 #include "util/macros.h" 41 42 #include "decoder.h" 43 #include "intel_aub.h" 44 #include "gen_disasm.h" 45 46 /* Below is the only command missing from intel_aub.h in libdrm 47 * So, reuse intel_aub.h from libdrm and #define the 48 * AUB_MI_BATCH_BUFFER_END as below 49 */ 50 #define AUB_MI_BATCH_BUFFER_END (0x0500 << 16) 51 52 #define CSI "\e[" 53 #define BLUE_HEADER CSI "0;44m" 54 #define GREEN_HEADER CSI "1;42m" 55 #define NORMAL CSI "0m" 56 57 /* options */ 58 59 static bool option_full_decode = true; 60 static bool option_print_offsets = true; 61 static enum { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER } option_color; 62 63 /* state */ 64 65 uint16_t pci_id = 0; 66 char *input_file = NULL, *xml_path = NULL; 67 struct gen_spec *spec; 68 struct gen_disasm *disasm; 69 70 uint64_t gtt_size, gtt_end; 71 void *gtt; 72 uint64_t general_state_base; 73 uint64_t surface_state_base; 74 uint64_t dynamic_state_base; 75 uint64_t instruction_base; 76 uint64_t instruction_bound; 77 78 static inline uint32_t 79 field(uint32_t value, int start, int end) 80 { 81 uint32_t mask; 82 83 mask = ~0U >> (31 - end + start); 84 85 return (value >> start) & mask; 86 } 87 88 struct brw_instruction; 89 90 static inline int 91 valid_offset(uint32_t offset) 92 { 93 return offset < gtt_end; 94 } 95 96 static void 97 print_dword_val(struct gen_field_iterator *iter, uint64_t offset, 98 int *dword_num) 99 { 100 struct gen_field *f; 101 102 f = iter->group->fields[iter->i - 1]; 103 const int dword = f->start / 32; 104 105 if (*dword_num != dword) { 106 printf("0x%08"PRIx64": 0x%08x : Dword %d\n", 107 offset + 4 * dword, iter->p[dword], dword); 108 *dword_num = dword; 109 } 110 } 111 112 static char * 113 print_iterator_values(struct gen_field_iterator *iter, int *idx) 114 { 115 char *token = NULL; 116 if (strstr(iter->value, "struct") == NULL) { 117 if (strlen(iter->description) > 0) { 118 printf(" %s: %s (%s)\n", 119 iter->name, iter->value, iter->description); 120 } else { 121 printf(" %s: %s\n", iter->name, iter->value); 122 } 123 } else { 124 token = strtok(iter->value, " "); 125 if (token != NULL) { 126 token = strtok(NULL, " "); 127 *idx = atoi(strtok(NULL, ">")); 128 } else { 129 token = NULL; 130 } 131 printf(" %s:<struct %s>\n", iter->name, token); 132 } 133 return token; 134 } 135 136 static void 137 decode_structure(struct gen_spec *spec, struct gen_group *strct, 138 const uint32_t *p) 139 { 140 struct gen_field_iterator iter; 141 char *token = NULL; 142 int idx = 0, dword_num = 0; 143 uint64_t offset = 0; 144 145 if (option_print_offsets) 146 offset = (void *) p - gtt; 147 else 148 offset = 0; 149 150 gen_field_iterator_init(&iter, strct, p, 151 option_color == COLOR_ALWAYS); 152 while (gen_field_iterator_next(&iter)) { 153 idx = 0; 154 print_dword_val(&iter, offset, &dword_num); 155 token = print_iterator_values(&iter, &idx); 156 if (token != NULL) { 157 struct gen_group *struct_val = gen_spec_find_struct(spec, token); 158 decode_structure(spec, struct_val, &p[idx]); 159 token = NULL; 160 } 161 } 162 } 163 164 static void 165 handle_struct_decode(struct gen_spec *spec, char *struct_name, uint32_t *p) 166 { 167 if (struct_name == NULL) 168 return; 169 struct gen_group *struct_val = gen_spec_find_struct(spec, struct_name); 170 decode_structure(spec, struct_val, p); 171 } 172 173 static void 174 dump_binding_table(struct gen_spec *spec, uint32_t offset) 175 { 176 uint32_t *pointers, i; 177 uint64_t start; 178 struct gen_group *surface_state; 179 180 surface_state = gen_spec_find_struct(spec, "RENDER_SURFACE_STATE"); 181 if (surface_state == NULL) { 182 printf("did not find RENDER_SURFACE_STATE info\n"); 183 return; 184 } 185 186 start = surface_state_base + offset; 187 pointers = gtt + start; 188 for (i = 0; i < 16; i++) { 189 if (pointers[i] == 0) 190 continue; 191 start = pointers[i] + surface_state_base; 192 if (!valid_offset(start)) { 193 printf("pointer %u: %08x <not valid>\n", 194 i, pointers[i]); 195 continue; 196 } else { 197 printf("pointer %u: %08x\n", i, pointers[i]); 198 } 199 200 decode_structure(spec, surface_state, gtt + start); 201 } 202 } 203 204 static void 205 handle_3dstate_index_buffer(struct gen_spec *spec, uint32_t *p) 206 { 207 void *start; 208 uint32_t length, i, type, size; 209 210 start = gtt + p[2]; 211 type = (p[1] >> 8) & 3; 212 size = 1 << type; 213 length = p[4] / size; 214 if (length > 10) 215 length = 10; 216 217 printf("\t"); 218 219 for (i = 0; i < length; i++) { 220 switch (type) { 221 case 0: 222 printf("%3d ", ((uint8_t *)start)[i]); 223 break; 224 case 1: 225 printf("%3d ", ((uint16_t *)start)[i]); 226 break; 227 case 2: 228 printf("%3d ", ((uint32_t *)start)[i]); 229 break; 230 } 231 } 232 if (length < p[4] / size) 233 printf("...\n"); 234 else 235 printf("\n"); 236 } 237 238 static inline uint64_t 239 get_address(struct gen_spec *spec, uint32_t *p) 240 { 241 /* Addresses are always guaranteed to be page-aligned and sometimes 242 * hardware packets have extra stuff stuffed in the bottom 12 bits. 243 */ 244 uint64_t addr = p[0] & ~0xfffu; 245 246 if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) { 247 /* On Broadwell and above, we have 48-bit addresses which consume two 248 * dwords. Some packets require that these get stored in a "canonical 249 * form" which means that bit 47 is sign-extended through the upper 250 * bits. In order to correctly handle those aub dumps, we need to mask 251 * off the top 16 bits. 252 */ 253 addr |= ((uint64_t)p[1] & 0xffff) << 32; 254 } 255 256 return addr; 257 } 258 259 static inline uint64_t 260 get_offset(uint32_t *p, uint32_t start, uint32_t end) 261 { 262 assert(start <= end); 263 assert(end < 64); 264 265 uint64_t mask = (~0ull >> (64 - (end - start + 1))) << start; 266 267 uint64_t offset = p[0]; 268 if (end >= 32) 269 offset |= (uint64_t) p[1] << 32; 270 271 return offset & mask; 272 } 273 274 static void 275 handle_state_base_address(struct gen_spec *spec, uint32_t *p) 276 { 277 if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) { 278 if (p[1] & 1) 279 general_state_base = get_address(spec, &p[1]); 280 if (p[4] & 1) 281 surface_state_base = get_address(spec, &p[4]); 282 if (p[6] & 1) 283 dynamic_state_base = get_address(spec, &p[6]); 284 if (p[10] & 1) 285 instruction_base = get_address(spec, &p[10]); 286 if (p[15] & 1) 287 instruction_bound = p[15] & 0xfff; 288 } else { 289 if (p[2] & 1) 290 surface_state_base = get_address(spec, &p[2]); 291 if (p[3] & 1) 292 dynamic_state_base = get_address(spec, &p[3]); 293 if (p[5] & 1) 294 instruction_base = get_address(spec, &p[5]); 295 if (p[9] & 1) 296 instruction_bound = get_address(spec, &p[9]); 297 } 298 } 299 300 static void 301 dump_samplers(struct gen_spec *spec, uint32_t offset) 302 { 303 uint32_t i; 304 uint64_t start; 305 struct gen_group *sampler_state; 306 307 sampler_state = gen_spec_find_struct(spec, "SAMPLER_STATE"); 308 309 start = dynamic_state_base + offset; 310 for (i = 0; i < 4; i++) { 311 printf("sampler state %d\n", i); 312 decode_structure(spec, sampler_state, gtt + start + i * 16); 313 } 314 } 315 316 static void 317 handle_media_interface_descriptor_load(struct gen_spec *spec, uint32_t *p) 318 { 319 int i, length = p[2] / 32; 320 struct gen_group *descriptor_structure; 321 uint32_t *descriptors; 322 uint64_t start; 323 struct brw_instruction *insns; 324 325 descriptor_structure = 326 gen_spec_find_struct(spec, "INTERFACE_DESCRIPTOR_DATA"); 327 if (descriptor_structure == NULL) { 328 printf("did not find INTERFACE_DESCRIPTOR_DATA info\n"); 329 return; 330 } 331 332 start = dynamic_state_base + p[3]; 333 descriptors = gtt + start; 334 for (i = 0; i < length; i++, descriptors += 8) { 335 printf("descriptor %u: %08x\n", i, *descriptors); 336 decode_structure(spec, descriptor_structure, descriptors); 337 338 start = instruction_base + descriptors[0]; 339 if (!valid_offset(start)) { 340 printf("kernel: %08"PRIx64" <not valid>\n", start); 341 continue; 342 } else { 343 printf("kernel: %08"PRIx64"\n", start); 344 } 345 346 insns = (struct brw_instruction *) (gtt + start); 347 gen_disasm_disassemble(disasm, insns, 0, stdout); 348 349 dump_samplers(spec, descriptors[3] & ~0x1f); 350 dump_binding_table(spec, descriptors[4] & ~0x1f); 351 } 352 } 353 354 /* Heuristic to determine whether a uint32_t is probably actually a float 355 * (http://stackoverflow.com/a/2953466) 356 */ 357 358 static bool 359 probably_float(uint32_t bits) 360 { 361 int exp = ((bits & 0x7f800000U) >> 23) - 127; 362 uint32_t mant = bits & 0x007fffff; 363 364 /* +- 0.0 */ 365 if (exp == -127 && mant == 0) 366 return true; 367 368 /* +- 1 billionth to 1 billion */ 369 if (-30 <= exp && exp <= 30) 370 return true; 371 372 /* some value with only a few binary digits */ 373 if ((mant & 0x0000ffff) == 0) 374 return true; 375 376 return false; 377 } 378 379 static void 380 handle_3dstate_vertex_buffers(struct gen_spec *spec, uint32_t *p) 381 { 382 uint32_t *end, *s, *dw, *dwend; 383 uint64_t offset; 384 int n, i, count, stride; 385 386 end = (p[0] & 0xff) + p + 2; 387 for (s = &p[1], n = 0; s < end; s += 4, n++) { 388 if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) { 389 offset = *(uint64_t *) &s[1]; 390 dwend = gtt + offset + s[3]; 391 } else { 392 offset = s[1]; 393 dwend = gtt + s[2] + 1; 394 } 395 396 stride = field(s[0], 0, 11); 397 count = 0; 398 printf("vertex buffer %d, size %d\n", n, s[3]); 399 for (dw = gtt + offset, i = 0; dw < dwend && i < 256; dw++) { 400 if (count == 0 && count % (8 * 4) == 0) 401 printf(" "); 402 403 if (probably_float(*dw)) 404 printf(" %8.2f", *(float *) dw); 405 else 406 printf(" 0x%08x", *dw); 407 408 i++; 409 count += 4; 410 411 if (count == stride) { 412 printf("\n"); 413 count = 0; 414 } else if (count % (8 * 4) == 0) { 415 printf("\n"); 416 } else { 417 printf(" "); 418 } 419 } 420 if (count > 0 && count % (8 * 4) != 0) 421 printf("\n"); 422 } 423 } 424 425 static void 426 handle_3dstate_vs(struct gen_spec *spec, uint32_t *p) 427 { 428 uint64_t start; 429 struct brw_instruction *insns; 430 int vs_enable; 431 432 if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) { 433 start = get_offset(&p[1], 6, 63); 434 vs_enable = p[7] & 1; 435 } else { 436 start = get_offset(&p[1], 6, 31); 437 vs_enable = p[5] & 1; 438 } 439 440 if (vs_enable) { 441 printf("instruction_base %08"PRIx64", start %08"PRIx64"\n", 442 instruction_base, start); 443 444 insns = (struct brw_instruction *) (gtt + instruction_base + start); 445 gen_disasm_disassemble(disasm, insns, 0, stdout); 446 } 447 } 448 449 static void 450 handle_3dstate_hs(struct gen_spec *spec, uint32_t *p) 451 { 452 uint64_t start; 453 struct brw_instruction *insns; 454 int hs_enable; 455 456 if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) { 457 start = get_offset(&p[3], 6, 63); 458 } else { 459 start = get_offset(&p[3], 6, 31); 460 } 461 462 hs_enable = p[2] & 0x80000000; 463 464 if (hs_enable) { 465 printf("instruction_base %08"PRIx64", start %08"PRIx64"\n", 466 instruction_base, start); 467 468 insns = (struct brw_instruction *) (gtt + instruction_base + start); 469 gen_disasm_disassemble(disasm, insns, 0, stdout); 470 } 471 } 472 473 static void 474 handle_3dstate_constant(struct gen_spec *spec, uint32_t *p) 475 { 476 int i, j, length; 477 uint32_t *dw; 478 float *f; 479 480 for (i = 0; i < 4; i++) { 481 length = (p[1 + i / 2] >> (i & 1) * 16) & 0xffff; 482 f = (float *) (gtt + p[3 + i * 2] + dynamic_state_base); 483 dw = (uint32_t *) f; 484 for (j = 0; j < length * 8; j++) { 485 if (probably_float(dw[j])) 486 printf(" %04.3f", f[j]); 487 else 488 printf(" 0x%08x", dw[j]); 489 490 if ((j & 7) == 7) 491 printf("\n"); 492 } 493 } 494 } 495 496 static void 497 handle_3dstate_ps(struct gen_spec *spec, uint32_t *p) 498 { 499 uint32_t mask = ~((1 << 6) - 1); 500 uint64_t start; 501 struct brw_instruction *insns; 502 static const char unused[] = "unused"; 503 static const char *pixel_type[3] = {"8 pixel", "16 pixel", "32 pixel"}; 504 const char *k0, *k1, *k2; 505 uint32_t k_mask, k1_offset, k2_offset; 506 507 if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) { 508 k_mask = p[6] & 7; 509 k1_offset = 8; 510 k2_offset = 10; 511 } else { 512 k_mask = p[4] & 7; 513 k1_offset = 6; 514 k2_offset = 7; 515 } 516 517 #define DISPATCH_8 1 518 #define DISPATCH_16 2 519 #define DISPATCH_32 4 520 521 switch (k_mask) { 522 case DISPATCH_8: 523 k0 = pixel_type[0]; 524 k1 = unused; 525 k2 = unused; 526 break; 527 case DISPATCH_16: 528 k0 = pixel_type[1]; 529 k1 = unused; 530 k2 = unused; 531 break; 532 case DISPATCH_8 | DISPATCH_16: 533 k0 = pixel_type[0]; 534 k1 = unused; 535 k2 = pixel_type[1]; 536 break; 537 case DISPATCH_32: 538 k0 = pixel_type[2]; 539 k1 = unused; 540 k2 = unused; 541 break; 542 case DISPATCH_16 | DISPATCH_32: 543 k0 = unused; 544 k1 = pixel_type[2]; 545 k2 = pixel_type[1]; 546 break; 547 case DISPATCH_8 | DISPATCH_16 | DISPATCH_32: 548 k0 = pixel_type[0]; 549 k1 = pixel_type[2]; 550 k2 = pixel_type[1]; 551 break; 552 default: 553 k0 = unused; 554 k1 = unused; 555 k2 = unused; 556 break; 557 } 558 559 start = instruction_base + (p[1] & mask); 560 printf(" Kernel[0] %s\n", k0); 561 if (k0 != unused) { 562 insns = (struct brw_instruction *) (gtt + start); 563 gen_disasm_disassemble(disasm, insns, 0, stdout); 564 } 565 566 start = instruction_base + (p[k1_offset] & mask); 567 printf(" Kernel[1] %s\n", k1); 568 if (k1 != unused) { 569 insns = (struct brw_instruction *) (gtt + start); 570 gen_disasm_disassemble(disasm, insns, 0, stdout); 571 } 572 573 start = instruction_base + (p[k2_offset] & mask); 574 printf(" Kernel[2] %s\n", k2); 575 if (k2 != unused) { 576 insns = (struct brw_instruction *) (gtt + start); 577 gen_disasm_disassemble(disasm, insns, 0, stdout); 578 } 579 } 580 581 static void 582 handle_3dstate_binding_table_pointers(struct gen_spec *spec, uint32_t *p) 583 { 584 dump_binding_table(spec, p[1]); 585 } 586 587 static void 588 handle_3dstate_sampler_state_pointers(struct gen_spec *spec, uint32_t *p) 589 { 590 dump_samplers(spec, p[1]); 591 } 592 593 static void 594 handle_3dstate_viewport_state_pointers_cc(struct gen_spec *spec, uint32_t *p) 595 { 596 uint64_t start; 597 struct gen_group *cc_viewport; 598 599 cc_viewport = gen_spec_find_struct(spec, "CC_VIEWPORT"); 600 601 start = dynamic_state_base + (p[1] & ~0x1fu); 602 for (uint32_t i = 0; i < 4; i++) { 603 printf("viewport %d\n", i); 604 decode_structure(spec, cc_viewport, gtt + start + i * 8); 605 } 606 } 607 608 static void 609 handle_3dstate_viewport_state_pointers_sf_clip(struct gen_spec *spec, 610 uint32_t *p) 611 { 612 uint64_t start; 613 struct gen_group *sf_clip_viewport; 614 615 sf_clip_viewport = gen_spec_find_struct(spec, "SF_CLIP_VIEWPORT"); 616 617 start = dynamic_state_base + (p[1] & ~0x3fu); 618 for (uint32_t i = 0; i < 4; i++) { 619 printf("viewport %d\n", i); 620 decode_structure(spec, sf_clip_viewport, gtt + start + i * 64); 621 } 622 } 623 624 static void 625 handle_3dstate_blend_state_pointers(struct gen_spec *spec, uint32_t *p) 626 { 627 uint64_t start; 628 struct gen_group *blend_state; 629 630 blend_state = gen_spec_find_struct(spec, "BLEND_STATE"); 631 632 start = dynamic_state_base + (p[1] & ~0x3fu); 633 decode_structure(spec, blend_state, gtt + start); 634 } 635 636 static void 637 handle_3dstate_cc_state_pointers(struct gen_spec *spec, uint32_t *p) 638 { 639 uint64_t start; 640 struct gen_group *cc_state; 641 642 cc_state = gen_spec_find_struct(spec, "COLOR_CALC_STATE"); 643 644 start = dynamic_state_base + (p[1] & ~0x3fu); 645 decode_structure(spec, cc_state, gtt + start); 646 } 647 648 static void 649 handle_3dstate_scissor_state_pointers(struct gen_spec *spec, uint32_t *p) 650 { 651 uint64_t start; 652 struct gen_group *scissor_rect; 653 654 scissor_rect = gen_spec_find_struct(spec, "SCISSOR_RECT"); 655 656 start = dynamic_state_base + (p[1] & ~0x1fu); 657 decode_structure(spec, scissor_rect, gtt + start); 658 } 659 660 static void 661 handle_load_register_imm(struct gen_spec *spec, uint32_t *p) 662 { 663 struct gen_group *reg = gen_spec_find_register(spec, p[1]); 664 665 if (reg != NULL) { 666 printf("register %s (0x%x): 0x%x\n", 667 reg->name, reg->register_offset, p[2]); 668 decode_structure(spec, reg, &p[2]); 669 } 670 } 671 672 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0]) 673 674 #define STATE_BASE_ADDRESS 0x61010000 675 676 #define MEDIA_INTERFACE_DESCRIPTOR_LOAD 0x70020000 677 678 #define _3DSTATE_INDEX_BUFFER 0x780a0000 679 #define _3DSTATE_VERTEX_BUFFERS 0x78080000 680 681 #define _3DSTATE_VS 0x78100000 682 #define _3DSTATE_GS 0x78110000 683 #define _3DSTATE_HS 0x781b0000 684 #define _3DSTATE_DS 0x781d0000 685 686 #define _3DSTATE_CONSTANT_VS 0x78150000 687 #define _3DSTATE_CONSTANT_GS 0x78160000 688 #define _3DSTATE_CONSTANT_PS 0x78170000 689 #define _3DSTATE_CONSTANT_HS 0x78190000 690 #define _3DSTATE_CONSTANT_DS 0x781A0000 691 692 #define _3DSTATE_PS 0x78200000 693 694 #define _3DSTATE_BINDING_TABLE_POINTERS_VS 0x78260000 695 #define _3DSTATE_BINDING_TABLE_POINTERS_HS 0x78270000 696 #define _3DSTATE_BINDING_TABLE_POINTERS_DS 0x78280000 697 #define _3DSTATE_BINDING_TABLE_POINTERS_GS 0x78290000 698 #define _3DSTATE_BINDING_TABLE_POINTERS_PS 0x782a0000 699 700 #define _3DSTATE_SAMPLER_STATE_POINTERS_VS 0x782b0000 701 #define _3DSTATE_SAMPLER_STATE_POINTERS_GS 0x782e0000 702 #define _3DSTATE_SAMPLER_STATE_POINTERS_PS 0x782f0000 703 704 #define _3DSTATE_VIEWPORT_STATE_POINTERS_CC 0x78230000 705 #define _3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP 0x78210000 706 #define _3DSTATE_BLEND_STATE_POINTERS 0x78240000 707 #define _3DSTATE_CC_STATE_POINTERS 0x780e0000 708 #define _3DSTATE_SCISSOR_STATE_POINTERS 0x780f0000 709 710 #define _MI_LOAD_REGISTER_IMM 0x11000000 711 712 struct custom_handler { 713 uint32_t opcode; 714 void (*handle)(struct gen_spec *spec, uint32_t *p); 715 } custom_handlers[] = { 716 { STATE_BASE_ADDRESS, handle_state_base_address }, 717 { MEDIA_INTERFACE_DESCRIPTOR_LOAD, handle_media_interface_descriptor_load }, 718 { _3DSTATE_VERTEX_BUFFERS, handle_3dstate_vertex_buffers }, 719 { _3DSTATE_INDEX_BUFFER, handle_3dstate_index_buffer }, 720 { _3DSTATE_VS, handle_3dstate_vs }, 721 { _3DSTATE_GS, handle_3dstate_vs }, 722 { _3DSTATE_DS, handle_3dstate_vs }, 723 { _3DSTATE_HS, handle_3dstate_hs }, 724 { _3DSTATE_CONSTANT_VS, handle_3dstate_constant }, 725 { _3DSTATE_CONSTANT_GS, handle_3dstate_constant }, 726 { _3DSTATE_CONSTANT_PS, handle_3dstate_constant }, 727 { _3DSTATE_CONSTANT_HS, handle_3dstate_constant }, 728 { _3DSTATE_CONSTANT_DS, handle_3dstate_constant }, 729 { _3DSTATE_PS, handle_3dstate_ps }, 730 731 { _3DSTATE_BINDING_TABLE_POINTERS_VS, handle_3dstate_binding_table_pointers }, 732 { _3DSTATE_BINDING_TABLE_POINTERS_HS, handle_3dstate_binding_table_pointers }, 733 { _3DSTATE_BINDING_TABLE_POINTERS_DS, handle_3dstate_binding_table_pointers }, 734 { _3DSTATE_BINDING_TABLE_POINTERS_GS, handle_3dstate_binding_table_pointers }, 735 { _3DSTATE_BINDING_TABLE_POINTERS_PS, handle_3dstate_binding_table_pointers }, 736 737 { _3DSTATE_SAMPLER_STATE_POINTERS_VS, handle_3dstate_sampler_state_pointers }, 738 { _3DSTATE_SAMPLER_STATE_POINTERS_GS, handle_3dstate_sampler_state_pointers }, 739 { _3DSTATE_SAMPLER_STATE_POINTERS_PS, handle_3dstate_sampler_state_pointers }, 740 741 { _3DSTATE_VIEWPORT_STATE_POINTERS_CC, handle_3dstate_viewport_state_pointers_cc }, 742 { _3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP, handle_3dstate_viewport_state_pointers_sf_clip }, 743 { _3DSTATE_BLEND_STATE_POINTERS, handle_3dstate_blend_state_pointers }, 744 { _3DSTATE_CC_STATE_POINTERS, handle_3dstate_cc_state_pointers }, 745 { _3DSTATE_SCISSOR_STATE_POINTERS, handle_3dstate_scissor_state_pointers }, 746 { _MI_LOAD_REGISTER_IMM, handle_load_register_imm } 747 }; 748 749 static void 750 parse_commands(struct gen_spec *spec, uint32_t *cmds, int size, int engine) 751 { 752 uint32_t *p, *end = cmds + size / 4; 753 unsigned int length, i; 754 struct gen_group *inst; 755 756 for (p = cmds; p < end; p += length) { 757 inst = gen_spec_find_instruction(spec, p); 758 if (inst == NULL) { 759 printf("unknown instruction %08x\n", p[0]); 760 length = (p[0] & 0xff) + 2; 761 continue; 762 } 763 length = gen_group_get_length(inst, p); 764 765 const char *color, *reset_color = NORMAL; 766 uint64_t offset; 767 768 if (option_full_decode) { 769 if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_START || 770 (p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_END) 771 color = GREEN_HEADER; 772 else 773 color = BLUE_HEADER; 774 } else 775 color = NORMAL; 776 777 if (option_color == COLOR_NEVER) { 778 color = ""; 779 reset_color = ""; 780 } 781 782 if (option_print_offsets) 783 offset = (void *) p - gtt; 784 else 785 offset = 0; 786 787 printf("%s0x%08"PRIx64": 0x%08x: %-80s%s\n", 788 color, offset, p[0], 789 gen_group_get_name(inst), reset_color); 790 791 if (option_full_decode) { 792 struct gen_field_iterator iter; 793 char *token = NULL; 794 int idx = 0, dword_num = 0; 795 gen_field_iterator_init(&iter, inst, p, 796 option_color == COLOR_ALWAYS); 797 while (gen_field_iterator_next(&iter)) { 798 idx = 0; 799 print_dword_val(&iter, offset, &dword_num); 800 if (dword_num > 0) 801 token = print_iterator_values(&iter, &idx); 802 if (token != NULL) { 803 printf("0x%08"PRIx64": 0x%08x : Dword %d\n", 804 offset + 4 * idx, p[idx], idx); 805 handle_struct_decode(spec,token, &p[idx]); 806 token = NULL; 807 } 808 } 809 810 for (i = 0; i < ARRAY_LENGTH(custom_handlers); i++) { 811 if (gen_group_get_opcode(inst) == 812 custom_handlers[i].opcode) 813 custom_handlers[i].handle(spec, p); 814 } 815 } 816 817 if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_START) { 818 uint64_t start = get_address(spec, &p[1]); 819 820 if (p[0] & (1 << 22)) { 821 /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" set acts 822 * like a subroutine call. Commands that come afterwards get 823 * processed once the 2nd level batch buffer returns with 824 * MI_BATCH_BUFFER_END. 825 */ 826 parse_commands(spec, gtt + start, gtt_end - start, engine); 827 } else { 828 /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" unset acts 829 * like a goto. Nothing after it will ever get processed. In 830 * order to prevent the recursion from growing, we just reset the 831 * loop and continue; 832 */ 833 p = gtt + start; 834 /* We don't know where secondaries end so use the GTT end */ 835 end = gtt + gtt_end; 836 length = 0; 837 continue; 838 } 839 } else if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_END) { 840 break; 841 } 842 } 843 } 844 845 #define GEN_ENGINE_RENDER 1 846 #define GEN_ENGINE_BLITTER 2 847 848 static void 849 handle_trace_block(uint32_t *p) 850 { 851 int operation = p[1] & AUB_TRACE_OPERATION_MASK; 852 int type = p[1] & AUB_TRACE_TYPE_MASK; 853 int address_space = p[1] & AUB_TRACE_ADDRESS_SPACE_MASK; 854 uint64_t offset = p[3]; 855 uint32_t size = p[4]; 856 int header_length = p[0] & 0xffff; 857 uint32_t *data = p + header_length + 2; 858 int engine = GEN_ENGINE_RENDER; 859 860 if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) 861 offset += (uint64_t) p[5] << 32; 862 863 switch (operation) { 864 case AUB_TRACE_OP_DATA_WRITE: 865 if (address_space != AUB_TRACE_MEMTYPE_GTT) 866 break; 867 if (gtt_size < offset + size) { 868 fprintf(stderr, "overflow gtt space: %s\n", strerror(errno)); 869 exit(EXIT_FAILURE); 870 } 871 memcpy((char *) gtt + offset, data, size); 872 if (gtt_end < offset + size) 873 gtt_end = offset + size; 874 break; 875 case AUB_TRACE_OP_COMMAND_WRITE: 876 switch (type) { 877 case AUB_TRACE_TYPE_RING_PRB0: 878 engine = GEN_ENGINE_RENDER; 879 break; 880 case AUB_TRACE_TYPE_RING_PRB2: 881 engine = GEN_ENGINE_BLITTER; 882 break; 883 default: 884 printf("command write to unknown ring %d\n", type); 885 break; 886 } 887 888 parse_commands(spec, data, size, engine); 889 gtt_end = 0; 890 break; 891 } 892 } 893 894 static void 895 handle_trace_header(uint32_t *p) 896 { 897 /* The intel_aubdump tool from IGT is kind enough to put a PCI-ID= tag in 898 * the AUB header comment. If the user hasn't specified a hardware 899 * generation, try to use the one from the AUB file. 900 */ 901 uint32_t *end = p + (p[0] & 0xffff) + 2; 902 int aub_pci_id = 0; 903 if (end > &p[12] && p[12] > 0) 904 sscanf((char *)&p[13], "PCI-ID=%i", &aub_pci_id); 905 906 if (pci_id == 0) 907 pci_id = aub_pci_id; 908 909 struct gen_device_info devinfo; 910 if (!gen_get_device_info(pci_id, &devinfo)) { 911 fprintf(stderr, "can't find device information: pci_id=0x%x\n", pci_id); 912 exit(EXIT_FAILURE); 913 } 914 915 if (xml_path == NULL) 916 spec = gen_spec_load(&devinfo); 917 else 918 spec = gen_spec_load_from_path(&devinfo, xml_path); 919 disasm = gen_disasm_create(pci_id); 920 921 if (spec == NULL || disasm == NULL) 922 exit(EXIT_FAILURE); 923 924 printf("%sAubinator: Intel AUB file decoder.%-80s%s\n", 925 GREEN_HEADER, "", NORMAL); 926 927 if (input_file) 928 printf("File name: %s\n", input_file); 929 930 if (aub_pci_id) 931 printf("PCI ID: 0x%x\n", aub_pci_id); 932 933 char app_name[33]; 934 strncpy(app_name, (char *)&p[2], 32); 935 app_name[32] = 0; 936 printf("Application name: %s\n", app_name); 937 938 printf("Decoding as: %s\n", gen_get_device_name(pci_id)); 939 940 /* Throw in a new line before the first batch */ 941 printf("\n"); 942 } 943 944 struct aub_file { 945 FILE *stream; 946 947 uint32_t *map, *end, *cursor; 948 uint32_t *mem_end; 949 }; 950 951 static struct aub_file * 952 aub_file_open(const char *filename) 953 { 954 struct aub_file *file; 955 struct stat sb; 956 int fd; 957 958 file = calloc(1, sizeof *file); 959 fd = open(filename, O_RDONLY); 960 if (fd == -1) { 961 fprintf(stderr, "open %s failed: %s\n", filename, strerror(errno)); 962 exit(EXIT_FAILURE); 963 } 964 965 if (fstat(fd, &sb) == -1) { 966 fprintf(stderr, "stat failed: %s\n", strerror(errno)); 967 exit(EXIT_FAILURE); 968 } 969 970 file->map = mmap(NULL, sb.st_size, 971 PROT_READ, MAP_SHARED, fd, 0); 972 if (file->map == MAP_FAILED) { 973 fprintf(stderr, "mmap failed: %s\n", strerror(errno)); 974 exit(EXIT_FAILURE); 975 } 976 977 file->cursor = file->map; 978 file->end = file->map + sb.st_size / 4; 979 980 return file; 981 } 982 983 static struct aub_file * 984 aub_file_stdin(void) 985 { 986 struct aub_file *file; 987 988 file = calloc(1, sizeof *file); 989 file->stream = stdin; 990 991 return file; 992 } 993 994 #define TYPE(dw) (((dw) >> 29) & 7) 995 #define OPCODE(dw) (((dw) >> 23) & 0x3f) 996 #define SUBOPCODE(dw) (((dw) >> 16) & 0x7f) 997 998 #define MAKE_HEADER(type, opcode, subopcode) \ 999 (((type) << 29) | ((opcode) << 23) | ((subopcode) << 16)) 1000 1001 #define TYPE_AUB 0x7 1002 1003 /* Classic AUB opcodes */ 1004 #define OPCODE_AUB 0x01 1005 #define SUBOPCODE_HEADER 0x05 1006 #define SUBOPCODE_BLOCK 0x41 1007 #define SUBOPCODE_BMP 0x1e 1008 1009 /* Newer version AUB opcode */ 1010 #define OPCODE_NEW_AUB 0x2e 1011 #define SUBOPCODE_VERSION 0x00 1012 #define SUBOPCODE_REG_WRITE 0x03 1013 #define SUBOPCODE_MEM_POLL 0x05 1014 #define SUBOPCODE_MEM_WRITE 0x06 1015 1016 #define MAKE_GEN(major, minor) ( ((major) << 8) | (minor) ) 1017 1018 struct { 1019 const char *name; 1020 uint32_t gen; 1021 } device_map[] = { 1022 { "bwr", MAKE_GEN(4, 0) }, 1023 { "cln", MAKE_GEN(4, 0) }, 1024 { "blc", MAKE_GEN(4, 0) }, 1025 { "ctg", MAKE_GEN(4, 0) }, 1026 { "el", MAKE_GEN(4, 0) }, 1027 { "il", MAKE_GEN(4, 0) }, 1028 { "sbr", MAKE_GEN(6, 0) }, 1029 { "ivb", MAKE_GEN(7, 0) }, 1030 { "lrb2", MAKE_GEN(0, 0) }, 1031 { "hsw", MAKE_GEN(7, 5) }, 1032 { "vlv", MAKE_GEN(7, 0) }, 1033 { "bdw", MAKE_GEN(8, 0) }, 1034 { "skl", MAKE_GEN(9, 0) }, 1035 { "chv", MAKE_GEN(8, 0) }, 1036 { "bxt", MAKE_GEN(9, 0) } 1037 }; 1038 1039 enum { 1040 AUB_ITEM_DECODE_OK, 1041 AUB_ITEM_DECODE_FAILED, 1042 AUB_ITEM_DECODE_NEED_MORE_DATA, 1043 }; 1044 1045 static int 1046 aub_file_decode_batch(struct aub_file *file) 1047 { 1048 uint32_t *p, h, device, data_type, *new_cursor; 1049 int header_length, bias; 1050 1051 if (file->end - file->cursor < 1) 1052 return AUB_ITEM_DECODE_NEED_MORE_DATA; 1053 1054 p = file->cursor; 1055 h = *p; 1056 header_length = h & 0xffff; 1057 1058 switch (OPCODE(h)) { 1059 case OPCODE_AUB: 1060 bias = 2; 1061 break; 1062 case OPCODE_NEW_AUB: 1063 bias = 1; 1064 break; 1065 default: 1066 printf("unknown opcode %d at %td/%td\n", 1067 OPCODE(h), file->cursor - file->map, 1068 file->end - file->map); 1069 return AUB_ITEM_DECODE_FAILED; 1070 } 1071 1072 new_cursor = p + header_length + bias; 1073 if ((h & 0xffff0000) == MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK)) { 1074 if (file->end - file->cursor < 4) 1075 return AUB_ITEM_DECODE_NEED_MORE_DATA; 1076 new_cursor += p[4] / 4; 1077 } 1078 1079 if (new_cursor > file->end) 1080 return AUB_ITEM_DECODE_NEED_MORE_DATA; 1081 1082 switch (h & 0xffff0000) { 1083 case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_HEADER): 1084 handle_trace_header(p); 1085 break; 1086 case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK): 1087 handle_trace_block(p); 1088 break; 1089 case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BMP): 1090 break; 1091 case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_VERSION): 1092 printf("version block: dw1 %08x\n", p[1]); 1093 device = (p[1] >> 8) & 0xff; 1094 printf(" device %s\n", device_map[device].name); 1095 break; 1096 case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_REG_WRITE): 1097 printf("register write block: (dwords %d)\n", h & 0xffff); 1098 printf(" reg 0x%x, data 0x%x\n", p[1], p[5]); 1099 break; 1100 case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_WRITE): 1101 printf("memory write block (dwords %d):\n", h & 0xffff); 1102 printf(" address 0x%"PRIx64"\n", *(uint64_t *) &p[1]); 1103 data_type = (p[3] >> 20) & 0xff; 1104 if (data_type != 0) 1105 printf(" data type 0x%x\n", data_type); 1106 printf(" address space 0x%x\n", (p[3] >> 28) & 0xf); 1107 break; 1108 case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_POLL): 1109 printf("memory poll block (dwords %d):\n", h & 0xffff); 1110 break; 1111 default: 1112 printf("unknown block type=0x%x, opcode=0x%x, " 1113 "subopcode=0x%x (%08x)\n", TYPE(h), OPCODE(h), SUBOPCODE(h), h); 1114 break; 1115 } 1116 file->cursor = new_cursor; 1117 1118 return AUB_ITEM_DECODE_OK; 1119 } 1120 1121 static int 1122 aub_file_more_stuff(struct aub_file *file) 1123 { 1124 return file->cursor < file->end || (file->stream && !feof(file->stream)); 1125 } 1126 1127 #define AUB_READ_BUFFER_SIZE (4096) 1128 #define MAX(a, b) ((a) < (b) ? (b) : (a)) 1129 1130 static void 1131 aub_file_data_grow(struct aub_file *file) 1132 { 1133 size_t old_size = (file->mem_end - file->map) * 4; 1134 size_t new_size = MAX(old_size * 2, AUB_READ_BUFFER_SIZE); 1135 uint32_t *new_start = realloc(file->map, new_size); 1136 1137 file->cursor = new_start + (file->cursor - file->map); 1138 file->end = new_start + (file->end - file->map); 1139 file->map = new_start; 1140 file->mem_end = file->map + (new_size / 4); 1141 } 1142 1143 static bool 1144 aub_file_data_load(struct aub_file *file) 1145 { 1146 size_t r; 1147 1148 if (file->stream == NULL) 1149 return false; 1150 1151 /* First remove any consumed data */ 1152 if (file->cursor > file->map) { 1153 memmove(file->map, file->cursor, 1154 (file->end - file->cursor) * 4); 1155 file->end -= file->cursor - file->map; 1156 file->cursor = file->map; 1157 } 1158 1159 /* Then load some new data in */ 1160 if ((file->mem_end - file->end) < (AUB_READ_BUFFER_SIZE / 4)) 1161 aub_file_data_grow(file); 1162 1163 r = fread(file->end, 1, (file->mem_end - file->end) * 4, file->stream); 1164 file->end += r / 4; 1165 1166 return r != 0; 1167 } 1168 1169 static void 1170 setup_pager(void) 1171 { 1172 int fds[2]; 1173 pid_t pid; 1174 1175 if (!isatty(1)) 1176 return; 1177 1178 if (pipe(fds) == -1) 1179 return; 1180 1181 pid = fork(); 1182 if (pid == -1) 1183 return; 1184 1185 if (pid == 0) { 1186 close(fds[1]); 1187 dup2(fds[0], 0); 1188 execlp("less", "less", "-FRSi", NULL); 1189 } 1190 1191 close(fds[0]); 1192 dup2(fds[1], 1); 1193 close(fds[1]); 1194 } 1195 1196 static void 1197 print_help(const char *progname, FILE *file) 1198 { 1199 fprintf(file, 1200 "Usage: %s [OPTION]... [FILE]\n" 1201 "Decode aub file contents from either FILE or the standard input.\n\n" 1202 "A valid --gen option must be provided.\n\n" 1203 " --help display this help and exit\n" 1204 " --gen=platform decode for given platform (ivb, byt, hsw, bdw, chv, skl, kbl or bxt)\n" 1205 " --headers decode only command headers\n" 1206 " --color[=WHEN] colorize the output; WHEN can be 'auto' (default\n" 1207 " if omitted), 'always', or 'never'\n" 1208 " --no-pager don't launch pager\n" 1209 " --no-offsets don't print instruction offsets\n" 1210 " --xml=DIR load hardware xml description from directory DIR\n", 1211 progname); 1212 } 1213 1214 int main(int argc, char *argv[]) 1215 { 1216 struct aub_file *file; 1217 int c, i; 1218 bool help = false, pager = true; 1219 const struct { 1220 const char *name; 1221 int pci_id; 1222 } gens[] = { 1223 { "ivb", 0x0166 }, /* Intel(R) Ivybridge Mobile GT2 */ 1224 { "hsw", 0x0416 }, /* Intel(R) Haswell Mobile GT2 */ 1225 { "byt", 0x0155 }, /* Intel(R) Bay Trail */ 1226 { "bdw", 0x1616 }, /* Intel(R) HD Graphics 5500 (Broadwell GT2) */ 1227 { "chv", 0x22B3 }, /* Intel(R) HD Graphics (Cherryview) */ 1228 { "skl", 0x1912 }, /* Intel(R) HD Graphics 530 (Skylake GT2) */ 1229 { "kbl", 0x591D }, /* Intel(R) Kabylake GT2 */ 1230 { "bxt", 0x0A84 } /* Intel(R) HD Graphics (Broxton) */ 1231 }; 1232 const struct option aubinator_opts[] = { 1233 { "help", no_argument, (int *) &help, true }, 1234 { "no-pager", no_argument, (int *) &pager, false }, 1235 { "no-offsets", no_argument, (int *) &option_print_offsets, false }, 1236 { "gen", required_argument, NULL, 'g' }, 1237 { "headers", no_argument, (int *) &option_full_decode, false }, 1238 { "color", required_argument, NULL, 'c' }, 1239 { "xml", required_argument, NULL, 'x' }, 1240 { NULL, 0, NULL, 0 } 1241 }; 1242 1243 i = 0; 1244 while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) { 1245 switch (c) { 1246 case 'g': 1247 for (i = 0; i < ARRAY_SIZE(gens); i++) { 1248 if (!strcmp(optarg, gens[i].name)) { 1249 pci_id = gens[i].pci_id; 1250 break; 1251 } 1252 } 1253 if (i == ARRAY_SIZE(gens)) { 1254 fprintf(stderr, "can't parse gen: '%s', expected ivb, byt, hsw, " 1255 "bdw, chv, skl, kbl or bxt\n", optarg); 1256 exit(EXIT_FAILURE); 1257 } 1258 break; 1259 case 'c': 1260 if (optarg == NULL || strcmp(optarg, "always") == 0) 1261 option_color = COLOR_ALWAYS; 1262 else if (strcmp(optarg, "never") == 0) 1263 option_color = COLOR_NEVER; 1264 else if (strcmp(optarg, "auto") == 0) 1265 option_color = COLOR_AUTO; 1266 else { 1267 fprintf(stderr, "invalid value for --color: %s", optarg); 1268 exit(EXIT_FAILURE); 1269 } 1270 break; 1271 case 'x': 1272 xml_path = strdup(optarg); 1273 break; 1274 default: 1275 break; 1276 } 1277 } 1278 1279 if (help || argc == 1) { 1280 print_help(argv[0], stderr); 1281 exit(0); 1282 } 1283 1284 if (optind < argc) 1285 input_file = argv[optind]; 1286 1287 /* Do this before we redirect stdout to pager. */ 1288 if (option_color == COLOR_AUTO) 1289 option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER; 1290 1291 if (isatty(1) && pager) 1292 setup_pager(); 1293 1294 if (input_file == NULL) 1295 file = aub_file_stdin(); 1296 else 1297 file = aub_file_open(input_file); 1298 1299 /* mmap a terabyte for our gtt space. */ 1300 gtt_size = 1ull << 40; 1301 gtt = mmap(NULL, gtt_size, PROT_READ | PROT_WRITE, 1302 MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0); 1303 if (gtt == MAP_FAILED) { 1304 fprintf(stderr, "failed to alloc gtt space: %s\n", strerror(errno)); 1305 exit(EXIT_FAILURE); 1306 } 1307 1308 while (aub_file_more_stuff(file)) { 1309 switch (aub_file_decode_batch(file)) { 1310 case AUB_ITEM_DECODE_OK: 1311 break; 1312 case AUB_ITEM_DECODE_NEED_MORE_DATA: 1313 if (!file->stream) { 1314 file->cursor = file->end; 1315 break; 1316 } 1317 if (aub_file_more_stuff(file) && !aub_file_data_load(file)) { 1318 fprintf(stderr, "failed to load data from stdin\n"); 1319 exit(EXIT_FAILURE); 1320 } 1321 break; 1322 default: 1323 fprintf(stderr, "failed to parse aubdump data\n"); 1324 exit(EXIT_FAILURE); 1325 } 1326 } 1327 1328 1329 fflush(stdout); 1330 /* close the stdout which is opened to write the output */ 1331 close(1); 1332 free(xml_path); 1333 1334 wait(NULL); 1335 1336 return EXIT_SUCCESS; 1337 } 1338
