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