src/intel/tools/aubinator.c

   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 "common/gen_decoder.h"
  43 #include "common/gen_disasm.h"
  44 #include "intel_aub.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 int max_vbo_lines = -1;
  62 static enum { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER } option_color;
  63
  64 /* state */
  65
  66 uint16_t pci_id = 0;
  67 char *input_file = NULL, *xml_path = NULL;
  68 struct gen_device_info devinfo;
  69 struct gen_batch_decode_ctx batch_ctx;
  70
  71 uint64_t gtt_size, gtt_end;
  72 void *gtt;
  73 uint64_t general_state_base;
  74 uint64_t surface_state_base;
  75 uint64_t dynamic_state_base;
  76 uint64_t instruction_base;
  77 uint64_t instruction_bound;
  78
  79 FILE *outfile;
  80
  81 static inline uint32_t
  82 field(uint32_t value, int start, int end)
  83 {
  84    uint32_t mask;
  85
  86    mask = ~0U >> (31 - end + start);
  87
  88    return (value >> start) & mask;
  89 }
  90
  91 struct brw_instruction;
  92
  93 static inline int
  94 valid_offset(uint32_t offset)
  95 {
  96    return offset < gtt_end;
  97 }
  98
  99 #define GEN_ENGINE_RENDER 1
 100 #define GEN_ENGINE_BLITTER 2
 101
 102 static void
 103 handle_trace_block(uint32_t *p)
 104 {
 105    int operation = p[1] & AUB_TRACE_OPERATION_MASK;
 106    int type = p[1] & AUB_TRACE_TYPE_MASK;
 107    int address_space = p[1] & AUB_TRACE_ADDRESS_SPACE_MASK;
 108    uint64_t offset = p[3];
 109    uint32_t size = p[4];
 110    int header_length = p[0] & 0xffff;
 111    uint32_t *data = p + header_length + 2;
 112    int engine = GEN_ENGINE_RENDER;
 113
 114    if (devinfo.gen >= 8)
 115       offset += (uint64_t) p[5] << 32;
 116
 117    switch (operation) {
 118    case AUB_TRACE_OP_DATA_WRITE:
 119       if (address_space != AUB_TRACE_MEMTYPE_GTT)
 120          break;
 121       if (gtt_size < offset + size) {
 122          fprintf(stderr, "overflow gtt space: %s\n", strerror(errno));
 123          exit(EXIT_FAILURE);
 124       }
 125       memcpy((char *) gtt + offset, data, size);
 126       if (gtt_end < offset + size)
 127          gtt_end = offset + size;
 128       break;
 129    case AUB_TRACE_OP_COMMAND_WRITE:
 130       switch (type) {
 131       case AUB_TRACE_TYPE_RING_PRB0:
 132          engine = GEN_ENGINE_RENDER;
 133          break;
 134       case AUB_TRACE_TYPE_RING_PRB2:
 135          engine = GEN_ENGINE_BLITTER;
 136          break;
 137       default:
 138          fprintf(outfile, "command write to unknown ring %d\n", type);
 139          break;
 140       }
 141
 142       (void)engine; /* TODO */
 143       gen_print_batch(&batch_ctx, data, size, 0);
 144
 145       gtt_end = 0;
 146       break;
 147    }
 148 }
 149
 150 static struct gen_batch_decode_bo
 151 get_gen_batch_bo(void *user_data, uint64_t address)
 152 {
 153    if (address > gtt_end)
 154       return (struct gen_batch_decode_bo) { .map = NULL };
 155
 156    /* We really only have one giant address range */
 157    return (struct gen_batch_decode_bo) {
 158       .addr = 0,
 159       .map = gtt,
 160       .size = gtt_size
 161    };
 162 }
 163
 164 static void
 165 aubinator_init(uint16_t aub_pci_id, const char *app_name)
 166 {
 167    if (!gen_get_device_info(pci_id, &devinfo)) {
 168       fprintf(stderr, "can't find device information: pci_id=0x%x\n", pci_id);
 169       exit(EXIT_FAILURE);
 170    }
 171
 172    enum gen_batch_decode_flags batch_flags = 0;
 173    if (option_color == COLOR_ALWAYS)
 174       batch_flags |= GEN_BATCH_DECODE_IN_COLOR;
 175    if (option_full_decode)
 176       batch_flags |= GEN_BATCH_DECODE_FULL;
 177    if (option_print_offsets)
 178       batch_flags |= GEN_BATCH_DECODE_OFFSETS;
 179    batch_flags |= GEN_BATCH_DECODE_FLOATS;
 180
 181    gen_batch_decode_ctx_init(&batch_ctx, &devinfo, outfile, batch_flags,
 182                              xml_path, get_gen_batch_bo, NULL, NULL);
 183    batch_ctx.max_vbo_decoded_lines = max_vbo_lines;
 184
 185    char *color = GREEN_HEADER, *reset_color = NORMAL;
 186    if (option_color == COLOR_NEVER)
 187       color = reset_color = "";
 188
 189    fprintf(outfile, "%sAubinator: Intel AUB file decoder.%-80s%s\n",
 190            color, "", reset_color);
 191
 192    if (input_file)
 193       fprintf(outfile, "File name:        %s\n", input_file);
 194
 195    if (aub_pci_id)
 196       fprintf(outfile, "PCI ID:           0x%x\n", aub_pci_id);
 197
 198    fprintf(outfile, "Application name: %s\n", app_name);
 199
 200    fprintf(outfile, "Decoding as:      %s\n", gen_get_device_name(pci_id));
 201
 202    /* Throw in a new line before the first batch */
 203    fprintf(outfile, "\n");
 204 }
 205
 206 static void
 207 handle_trace_header(uint32_t *p)
 208 {
 209    /* The intel_aubdump tool from IGT is kind enough to put a PCI-ID= tag in
 210     * the AUB header comment.  If the user hasn't specified a hardware
 211     * generation, try to use the one from the AUB file.
 212     */
 213    uint32_t *end = p + (p[0] & 0xffff) + 2;
 214    int aub_pci_id = 0;
 215    if (end > &p[12] && p[12] > 0)
 216       sscanf((char *)&p[13], "PCI-ID=%i", &aub_pci_id);
 217
 218    if (pci_id == 0)
 219       pci_id = aub_pci_id;
 220
 221    char app_name[33];
 222    strncpy(app_name, (char *)&p[2], 32);
 223    app_name[32] = 0;
 224
 225    aubinator_init(aub_pci_id, app_name);
 226 }
 227
 228 static void
 229 handle_memtrace_version(uint32_t *p)
 230 {
 231    int header_length = p[0] & 0xffff;
 232    char app_name[64];
 233    int app_name_len = MIN2(4 * (header_length + 1 - 5), ARRAY_SIZE(app_name) - 1);
 234    int pci_id_len = 0;
 235    int aub_pci_id = 0;
 236
 237    strncpy(app_name, (char *)&p[5], app_name_len);
 238    app_name[app_name_len] = 0;
 239    sscanf(app_name, "PCI-ID=%i %n", &aub_pci_id, &pci_id_len);
 240    if (pci_id == 0)
 241       pci_id = aub_pci_id;
 242    aubinator_init(aub_pci_id, app_name + pci_id_len);
 243 }
 244
 245 static void
 246 handle_memtrace_reg_write(uint32_t *p)
 247 {
 248    uint32_t offset = p[1];
 249    uint32_t value = p[5];
 250    int engine;
 251    static int render_elsp_writes = 0;
 252    static int blitter_elsp_writes = 0;
 253    static int render_elsq0 = 0;
 254    static int blitter_elsq0 = 0;
 255    uint8_t *pphwsp;
 256
 257    if (offset == 0x2230) {
 258       render_elsp_writes++;
 259       engine = GEN_ENGINE_RENDER;
 260    } else if (offset == 0x22230) {
 261       blitter_elsp_writes++;
 262       engine = GEN_ENGINE_BLITTER;
 263    } else if (offset == 0x2510) {
 264       render_elsq0 = value;
 265    } else if (offset == 0x22510) {
 266       blitter_elsq0 = value;
 267    } else if (offset == 0x2550 || offset == 0x22550) {
 268       /* nothing */;
 269    } else {
 270       return;
 271    }
 272
 273    if (render_elsp_writes > 3 || blitter_elsp_writes > 3) {
 274       render_elsp_writes = blitter_elsp_writes = 0;
 275       pphwsp = (uint8_t*)gtt + (value & 0xfffff000);
 276    } else if (offset == 0x2550) {
 277       engine = GEN_ENGINE_RENDER;
 278       pphwsp = (uint8_t*)gtt + (render_elsq0 & 0xfffff000);
 279    } else if (offset == 0x22550) {
 280       engine = GEN_ENGINE_BLITTER;
 281       pphwsp = (uint8_t*)gtt + (blitter_elsq0 & 0xfffff000);
 282    } else {
 283       return;
 284    }
 285
 286    const uint32_t pphwsp_size = 4096;
 287    uint32_t *context = (uint32_t*)(pphwsp + pphwsp_size);
 288    uint32_t ring_buffer_head = context[5];
 289    uint32_t ring_buffer_tail = context[7];
 290    uint32_t ring_buffer_start = context[9];
 291    uint32_t *commands = (uint32_t*)((uint8_t*)gtt + ring_buffer_start + ring_buffer_head);
 292    (void)engine; /* TODO */
 293    gen_print_batch(&batch_ctx, commands, ring_buffer_tail - ring_buffer_head, 0);
 294 }
 295
 296 static void
 297 handle_memtrace_mem_write(uint32_t *p)
 298 {
 299    uint64_t address = *(uint64_t*)&p[1];
 300    uint32_t address_space = p[3] >> 28;
 301    uint32_t size = p[4];
 302    uint32_t *data = p + 5;
 303
 304    if (address_space != 1)
 305       return;
 306
 307    if (gtt_size < address + size) {
 308       fprintf(stderr, "overflow gtt space: %s\n", strerror(errno));
 309       exit(EXIT_FAILURE);
 310    }
 311
 312    memcpy((char *) gtt + address, data, size);
 313    if (gtt_end < address + size)
 314       gtt_end = address + size;
 315 }
 316
 317 struct aub_file {
 318    FILE *stream;
 319
 320    uint32_t *map, *end, *cursor;
 321    uint32_t *mem_end;
 322 };
 323
 324 static struct aub_file *
 325 aub_file_open(const char *filename)
 326 {
 327    struct aub_file *file;
 328    struct stat sb;
 329    int fd;
 330
 331    file = calloc(1, sizeof *file);
 332    fd = open(filename, O_RDONLY);
 333    if (fd == -1) {
 334       fprintf(stderr, "open %s failed: %s\n", filename, strerror(errno));
 335       exit(EXIT_FAILURE);
 336    }
 337
 338    if (fstat(fd, &sb) == -1) {
 339       fprintf(stderr, "stat failed: %s\n", strerror(errno));
 340       exit(EXIT_FAILURE);
 341    }
 342
 343    file->map = mmap(NULL, sb.st_size,
 344                     PROT_READ, MAP_SHARED, fd, 0);
 345    if (file->map == MAP_FAILED) {
 346       fprintf(stderr, "mmap failed: %s\n", strerror(errno));
 347       exit(EXIT_FAILURE);
 348    }
 349
 350    close(fd);
 351
 352    file->cursor = file->map;
 353    file->end = file->map + sb.st_size / 4;
 354
 355    return file;
 356 }
 357
 358 static struct aub_file *
 359 aub_file_stdin(void)
 360 {
 361    struct aub_file *file;
 362
 363    file = calloc(1, sizeof *file);
 364    file->stream = stdin;
 365
 366    return file;
 367 }
 368
 369 #define TYPE(dw)       (((dw) >> 29) & 7)
 370 #define OPCODE(dw)     (((dw) >> 23) & 0x3f)
 371 #define SUBOPCODE(dw)  (((dw) >> 16) & 0x7f)
 372
 373 #define MAKE_HEADER(type, opcode, subopcode) \
 374                    (((type) << 29) | ((opcode) << 23) | ((subopcode) << 16))
 375
 376 #define TYPE_AUB            0x7
 377
 378 /* Classic AUB opcodes */
 379 #define OPCODE_AUB          0x01
 380 #define SUBOPCODE_HEADER    0x05
 381 #define SUBOPCODE_BLOCK     0x41
 382 #define SUBOPCODE_BMP       0x1e
 383
 384 /* Newer version AUB opcode */
 385 #define OPCODE_NEW_AUB      0x2e
 386 #define SUBOPCODE_REG_POLL  0x02
 387 #define SUBOPCODE_REG_WRITE 0x03
 388 #define SUBOPCODE_MEM_POLL  0x05
 389 #define SUBOPCODE_MEM_WRITE 0x06
 390 #define SUBOPCODE_VERSION   0x0e
 391
 392 #define MAKE_GEN(major, minor) ( ((major) << 8) | (minor) )
 393
 394 enum {
 395    AUB_ITEM_DECODE_OK,
 396    AUB_ITEM_DECODE_FAILED,
 397    AUB_ITEM_DECODE_NEED_MORE_DATA,
 398 };
 399
 400 static int
 401 aub_file_decode_batch(struct aub_file *file)
 402 {
 403    uint32_t *p, h, *new_cursor;
 404    int header_length, bias;
 405
 406    if (file->end - file->cursor < 1)
 407       return AUB_ITEM_DECODE_NEED_MORE_DATA;
 408
 409    p = file->cursor;
 410    h = *p;
 411    header_length = h & 0xffff;
 412
 413    switch (OPCODE(h)) {
 414    case OPCODE_AUB:
 415       bias = 2;
 416       break;
 417    case OPCODE_NEW_AUB:
 418       bias = 1;
 419       break;
 420    default:
 421       fprintf(outfile, "unknown opcode %d at %td/%td\n",
 422               OPCODE(h), file->cursor - file->map,
 423               file->end - file->map);
 424       return AUB_ITEM_DECODE_FAILED;
 425    }
 426
 427    new_cursor = p + header_length + bias;
 428    if ((h & 0xffff0000) == MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK)) {
 429       if (file->end - file->cursor < 4)
 430          return AUB_ITEM_DECODE_NEED_MORE_DATA;
 431       new_cursor += p[4] / 4;
 432    }
 433
 434    if (new_cursor > file->end)
 435       return AUB_ITEM_DECODE_NEED_MORE_DATA;
 436
 437    switch (h & 0xffff0000) {
 438    case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_HEADER):
 439       handle_trace_header(p);
 440       break;
 441    case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK):
 442       handle_trace_block(p);
 443       break;
 444    case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BMP):
 445       break;
 446    case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_VERSION):
 447       handle_memtrace_version(p);
 448       break;
 449    case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_REG_WRITE):
 450       handle_memtrace_reg_write(p);
 451       break;
 452    case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_WRITE):
 453       handle_memtrace_mem_write(p);
 454       break;
 455    case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_POLL):
 456       fprintf(outfile, "memory poll block (dwords %d):\n", h & 0xffff);
 457       break;
 458    case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_REG_POLL):
 459       break;
 460    default:
 461       fprintf(outfile, "unknown block type=0x%x, opcode=0x%x, "
 462              "subopcode=0x%x (%08x)\n", TYPE(h), OPCODE(h), SUBOPCODE(h), h);
 463       break;
 464    }
 465    file->cursor = new_cursor;
 466
 467    return AUB_ITEM_DECODE_OK;
 468 }
 469
 470 static int
 471 aub_file_more_stuff(struct aub_file *file)
 472 {
 473    return file->cursor < file->end || (file->stream && !feof(file->stream));
 474 }
 475
 476 #define AUB_READ_BUFFER_SIZE (4096)
 477 #define MAX(a, b) ((a) < (b) ? (b) : (a))
 478
 479 static void
 480 aub_file_data_grow(struct aub_file *file)
 481 {
 482    size_t old_size = (file->mem_end - file->map) * 4;
 483    size_t new_size = MAX(old_size * 2, AUB_READ_BUFFER_SIZE);
 484    uint32_t *new_start = realloc(file->map, new_size);
 485
 486    file->cursor = new_start + (file->cursor - file->map);
 487    file->end = new_start + (file->end - file->map);
 488    file->map = new_start;
 489    file->mem_end = file->map + (new_size / 4);
 490 }
 491
 492 static bool
 493 aub_file_data_load(struct aub_file *file)
 494 {
 495    size_t r;
 496
 497    if (file->stream == NULL)
 498       return false;
 499
 500    /* First remove any consumed data */
 501    if (file->cursor > file->map) {
 502       memmove(file->map, file->cursor,
 503               (file->end - file->cursor) * 4);
 504       file->end -= file->cursor - file->map;
 505       file->cursor = file->map;
 506    }
 507
 508    /* Then load some new data in */
 509    if ((file->mem_end - file->end) < (AUB_READ_BUFFER_SIZE / 4))
 510       aub_file_data_grow(file);
 511
 512    r = fread(file->end, 1, (file->mem_end - file->end) * 4, file->stream);
 513    file->end += r / 4;
 514
 515    return r != 0;
 516 }
 517
 518 static void
 519 setup_pager(void)
 520 {
 521    int fds[2];
 522    pid_t pid;
 523
 524    if (!isatty(1))
 525       return;
 526
 527    if (pipe(fds) == -1)
 528       return;
 529
 530    pid = fork();
 531    if (pid == -1)
 532       return;
 533
 534    if (pid == 0) {
 535       close(fds[1]);
 536       dup2(fds[0], 0);
 537       execlp("less", "less", "-FRSi", NULL);
 538    }
 539
 540    close(fds[0]);
 541    dup2(fds[1], 1);
 542    close(fds[1]);
 543 }
 544
 545 static void
 546 print_help(const char *progname, FILE *file)
 547 {
 548    fprintf(file,
 549            "Usage: %s [OPTION]... [FILE]\n"
 550            "Decode aub file contents from either FILE or the standard input.\n\n"
 551            "A valid --gen option must be provided.\n\n"
 552            "      --help             display this help and exit\n"
 553            "      --gen=platform     decode for given platform (3 letter platform name)\n"
 554            "      --headers          decode only command headers\n"
 555            "      --color[=WHEN]     colorize the output; WHEN can be 'auto' (default\n"
 556            "                         if omitted), 'always', or 'never'\n"
 557            "      --max-vbo-lines=N  limit the number of decoded VBO lines\n"
 558            "      --no-pager         don't launch pager\n"
 559            "      --no-offsets       don't print instruction offsets\n"
 560            "      --xml=DIR          load hardware xml description from directory DIR\n",
 561            progname);
 562 }
 563
 564 int main(int argc, char *argv[])
 565 {
 566    struct aub_file *file;
 567    int c, i;
 568    bool help = false, pager = true;
 569    const struct option aubinator_opts[] = {
 570       { "help",          no_argument,       (int *) &help,                 true },
 571       { "no-pager",      no_argument,       (int *) &pager,                false },
 572       { "no-offsets",    no_argument,       (int *) &option_print_offsets, false },
 573       { "gen",           required_argument, NULL,                          'g' },
 574       { "headers",       no_argument,       (int *) &option_full_decode,   false },
 575       { "color",         required_argument, NULL,                          'c' },
 576       { "xml",           required_argument, NULL,                          'x' },
 577       { "max-vbo-lines", required_argument, NULL,                          'v' },
 578       { NULL,            0,                 NULL,                          0 }
 579    };
 580
 581    outfile = stdout;
 582
 583    i = 0;
 584    while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) {
 585       switch (c) {
 586       case 'g': {
 587          const int id = gen_device_name_to_pci_device_id(optarg);
 588          if (id < 0) {
 589             fprintf(stderr, "can't parse gen: '%s', expected ivb, byt, hsw, "
 590                                    "bdw, chv, skl, kbl or bxt\n", optarg);
 591             exit(EXIT_FAILURE);
 592          } else {
 593             pci_id = id;
 594          }
 595          break;
 596       }
 597       case 'c':
 598          if (optarg == NULL || strcmp(optarg, "always") == 0)
 599             option_color = COLOR_ALWAYS;
 600          else if (strcmp(optarg, "never") == 0)
 601             option_color = COLOR_NEVER;
 602          else if (strcmp(optarg, "auto") == 0)
 603             option_color = COLOR_AUTO;
 604          else {
 605             fprintf(stderr, "invalid value for --color: %s", optarg);
 606             exit(EXIT_FAILURE);
 607          }
 608          break;
 609       case 'x':
 610          xml_path = strdup(optarg);
 611          break;
 612       case 'v':
 613          max_vbo_lines = atoi(optarg);
 614          break;
 615       default:
 616          break;
 617       }
 618    }
 619
 620    if (help || argc == 1) {
 621       print_help(argv[0], stderr);
 622       exit(0);
 623    }
 624
 625    if (optind < argc)
 626       input_file = argv[optind];
 627
 628    /* Do this before we redirect stdout to pager. */
 629    if (option_color == COLOR_AUTO)
 630       option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER;
 631
 632    if (isatty(1) && pager)
 633       setup_pager();
 634
 635    if (input_file == NULL)
 636       file = aub_file_stdin();
 637    else
 638       file = aub_file_open(input_file);
 639
 640    /* mmap a terabyte for our gtt space. */
 641    gtt_size = 1ull << 40;
 642    gtt = mmap(NULL, gtt_size, PROT_READ | PROT_WRITE,
 643               MAP_PRIVATE | MAP_ANONYMOUS |  MAP_NORESERVE, -1, 0);
 644    if (gtt == MAP_FAILED) {
 645       fprintf(stderr, "failed to alloc gtt space: %s\n", strerror(errno));
 646       exit(EXIT_FAILURE);
 647    }
 648
 649    while (aub_file_more_stuff(file)) {
 650       switch (aub_file_decode_batch(file)) {
 651       case AUB_ITEM_DECODE_OK:
 652          break;
 653       case AUB_ITEM_DECODE_NEED_MORE_DATA:
 654          if (!file->stream) {
 655             file->cursor = file->end;
 656             break;
 657          }
 658          if (aub_file_more_stuff(file) && !aub_file_data_load(file)) {
 659             fprintf(stderr, "failed to load data from stdin\n");
 660             exit(EXIT_FAILURE);
 661          }
 662          break;
 663       default:
 664          fprintf(stderr, "failed to parse aubdump data\n");
 665          exit(EXIT_FAILURE);
 666       }
 667    }
 668
 669
 670    fflush(stdout);
 671    /* close the stdout which is opened to write the output */
 672    close(1);
 673    free(xml_path);
 674
 675    wait(NULL);
 676
 677    return EXIT_SUCCESS;
 678 }