summaryrefslogtreecommitdiff
path: root/src/intel/tools/aubinator.c
blob: 68fd18cd684b64db49c448ec83da4b4c13cb8208 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
/*
 * Copyright © 2016 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <getopt.h>

#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/mman.h>

#include "util/macros.h"

#include "common/gen_decoder.h"
#include "intel_aub.h"
#include "gen_disasm.h"

/* Below is the only command missing from intel_aub.h in libdrm
 * So, reuse intel_aub.h from libdrm and #define the
 * AUB_MI_BATCH_BUFFER_END as below
 */
#define AUB_MI_BATCH_BUFFER_END (0x0500 << 16)

#define CSI "\e["
#define BLUE_HEADER  CSI "0;44m"
#define GREEN_HEADER CSI "1;42m"
#define NORMAL       CSI "0m"

/* options */

static bool option_full_decode = true;
static bool option_print_offsets = true;
static enum { COLOR_AUTO, COLOR_ALWAYS, COLOR_NEVER } option_color;

/* state */

uint16_t pci_id = 0;
char *input_file = NULL, *xml_path = NULL;
struct gen_spec *spec;
struct gen_disasm *disasm;

uint64_t gtt_size, gtt_end;
void *gtt;
uint64_t general_state_base;
uint64_t surface_state_base;
uint64_t dynamic_state_base;
uint64_t instruction_base;
uint64_t instruction_bound;

FILE *outfile;

static inline uint32_t
field(uint32_t value, int start, int end)
{
   uint32_t mask;

   mask = ~0U >> (31 - end + start);

   return (value >> start) & mask;
}

struct brw_instruction;

static inline int
valid_offset(uint32_t offset)
{
   return offset < gtt_end;
}

static void
decode_group(struct gen_group *strct, const uint32_t *p, int starting_dword)
{
   uint64_t offset = option_print_offsets ? (void *) p - gtt : 0;
   gen_print_group(outfile, strct, offset, p, starting_dword,
                   option_color == COLOR_ALWAYS);
}

static void
dump_binding_table(struct gen_spec *spec, uint32_t offset)
{
   uint32_t *pointers, i;
   uint64_t start;
   struct gen_group *surface_state;

   surface_state = gen_spec_find_struct(spec, "RENDER_SURFACE_STATE");
   if (surface_state == NULL) {
      fprintf(outfile, "did not find RENDER_SURFACE_STATE info\n");
      return;
   }

   start = surface_state_base + offset;
   pointers = gtt + start;
   for (i = 0; i < 16; i++) {
      if (pointers[i] == 0)
         continue;
      start = pointers[i] + surface_state_base;
      if (!valid_offset(start)) {
         fprintf(outfile, "pointer %u: %08x <not valid>\n",
                 i, pointers[i]);
         continue;
      } else {
         fprintf(outfile, "pointer %u: %08x\n", i, pointers[i]);
      }

      decode_group(surface_state, gtt + start, 0);
   }
}

static void
handle_3dstate_index_buffer(struct gen_spec *spec, uint32_t *p)
{
   void *start;
   uint32_t length, i, type, size;

   start = gtt + p[2];
   type = (p[1] >> 8) & 3;
   size = 1 << type;
   length = p[4] / size;
   if (length > 10)
      length = 10;

   fprintf(outfile, "\t");

   for (i = 0; i < length; i++) {
      switch (type) {
      case 0:
         fprintf(outfile, "%3d ", ((uint8_t *)start)[i]);
         break;
      case 1:
         fprintf(outfile, "%3d ", ((uint16_t *)start)[i]);
         break;
      case 2:
         fprintf(outfile, "%3d ", ((uint32_t *)start)[i]);
         break;
      }
   }
   if (length < p[4] / size)
      fprintf(outfile, "...\n");
   else
      fprintf(outfile, "\n");
}

static inline uint64_t
get_address(struct gen_spec *spec, uint32_t *p)
{
   /* Addresses are always guaranteed to be page-aligned and sometimes
    * hardware packets have extra stuff stuffed in the bottom 12 bits.
    */
   uint64_t addr = p[0] & ~0xfffu;

   if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) {
      /* On Broadwell and above, we have 48-bit addresses which consume two
       * dwords.  Some packets require that these get stored in a "canonical
       * form" which means that bit 47 is sign-extended through the upper
       * bits. In order to correctly handle those aub dumps, we need to mask
       * off the top 16 bits.
       */
      addr |= ((uint64_t)p[1] & 0xffff) << 32;
   }

   return addr;
}

static inline uint64_t
get_offset(uint32_t *p, uint32_t start, uint32_t end)
{
   assert(start <= end);
   assert(end < 64);

   uint64_t mask = (~0ull >> (64 - (end - start + 1))) << start;

   uint64_t offset = p[0];
   if (end >= 32)
      offset |= (uint64_t) p[1] << 32;

   return offset & mask;
}

static void
handle_state_base_address(struct gen_spec *spec, uint32_t *p)
{
   if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) {
      if (p[1] & 1)
         general_state_base = get_address(spec, &p[1]);
      if (p[4] & 1)
         surface_state_base = get_address(spec, &p[4]);
      if (p[6] & 1)
         dynamic_state_base = get_address(spec, &p[6]);
      if (p[10] & 1)
         instruction_base = get_address(spec, &p[10]);
      if (p[15] & 1)
         instruction_bound = p[15] & 0xfff;
   } else {
      if (p[2] & 1)
         surface_state_base = get_address(spec, &p[2]);
      if (p[3] & 1)
         dynamic_state_base = get_address(spec, &p[3]);
      if (p[5] & 1)
         instruction_base = get_address(spec, &p[5]);
      if (p[9] & 1)
         instruction_bound = get_address(spec, &p[9]);
   }
}

static void
dump_samplers(struct gen_spec *spec, uint32_t offset)
{
   uint32_t i;
   uint64_t start;
   struct gen_group *sampler_state;

   sampler_state = gen_spec_find_struct(spec, "SAMPLER_STATE");

   start = dynamic_state_base + offset;
   for (i = 0; i < 4; i++) {
      fprintf(outfile, "sampler state %d\n", i);
      decode_group(sampler_state, gtt + start + i * 16, 0);
   }
}

static void
handle_media_interface_descriptor_load(struct gen_spec *spec, uint32_t *p)
{
   int i, length = p[2] / 32;
   struct gen_group *descriptor_structure;
   uint32_t *descriptors;
   uint64_t start;
   struct brw_instruction *insns;

   descriptor_structure =
      gen_spec_find_struct(spec, "INTERFACE_DESCRIPTOR_DATA");
   if (descriptor_structure == NULL) {
      fprintf(outfile, "did not find INTERFACE_DESCRIPTOR_DATA info\n");
      return;
   }

   start = dynamic_state_base + p[3];
   descriptors = gtt + start;
   for (i = 0; i < length; i++, descriptors += 8) {
      fprintf(outfile, "descriptor %u: %08x\n", i, *descriptors);
      decode_group(descriptor_structure, descriptors, 0);

      start = instruction_base + descriptors[0];
      if (!valid_offset(start)) {
         fprintf(outfile, "kernel: %08"PRIx64" <not valid>\n", start);
         continue;
      } else {
         fprintf(outfile, "kernel: %08"PRIx64"\n", start);
      }

      insns = (struct brw_instruction *) (gtt + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);

      dump_samplers(spec, descriptors[3] & ~0x1f);
      dump_binding_table(spec, descriptors[4] & ~0x1f);
   }
}

/* Heuristic to determine whether a uint32_t is probably actually a float
 * (http://stackoverflow.com/a/2953466)
 */

static bool
probably_float(uint32_t bits)
{
   int exp = ((bits & 0x7f800000U) >> 23) - 127;
   uint32_t mant = bits & 0x007fffff;

   /* +- 0.0 */
   if (exp == -127 && mant == 0)
      return true;

   /* +- 1 billionth to 1 billion */
   if (-30 <= exp && exp <= 30)
      return true;

   /* some value with only a few binary digits */
   if ((mant & 0x0000ffff) == 0)
      return true;

   return false;
}

static void
handle_3dstate_vertex_buffers(struct gen_spec *spec, uint32_t *p)
{
   uint32_t *end, *s, *dw, *dwend;
   uint64_t offset;
   int n, i, count, stride;

   end = (p[0] & 0xff) + p + 2;
   for (s = &p[1], n = 0; s < end; s += 4, n++) {
      if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) {
         offset = *(uint64_t *) &s[1];
         dwend = gtt + offset + s[3];
      } else {
         offset = s[1];
         dwend = gtt + s[2] + 1;
      }

      stride = field(s[0], 0, 11);
      count = 0;
      fprintf(outfile, "vertex buffer %d, size %d\n", n, s[3]);
      for (dw = gtt + offset, i = 0; dw < dwend && i < 256; dw++) {
         if (count == 0 && count % (8 * 4) == 0)
            fprintf(outfile, "  ");

         if (probably_float(*dw))
            fprintf(outfile, "  %8.2f", *(float *) dw);
         else
            fprintf(outfile, "  0x%08x", *dw);

         i++;
         count += 4;

         if (count == stride) {
            fprintf(outfile, "\n");
            count = 0;
         } else if (count % (8 * 4) == 0) {
            fprintf(outfile, "\n");
         } else {
            fprintf(outfile, " ");
         }
      }
      if (count > 0 && count % (8 * 4) != 0)
         fprintf(outfile, "\n");
   }
}

static void
handle_3dstate_vs(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct brw_instruction *insns;
   int vs_enable;

   if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) {
      start = get_offset(&p[1], 6, 63);
      vs_enable = p[7] & 1;
   } else {
      start = get_offset(&p[1], 6, 31);
      vs_enable = p[5] & 1;
   }

   if (vs_enable) {
      fprintf(outfile, "instruction_base %08"PRIx64", start %08"PRIx64"\n",
              instruction_base, start);

      insns = (struct brw_instruction *) (gtt + instruction_base + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);
   }
}

static void
handle_3dstate_hs(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct brw_instruction *insns;
   int hs_enable;

   if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) {
      start = get_offset(&p[3], 6, 63);
   } else {
      start = get_offset(&p[3], 6, 31);
   }

   hs_enable = p[2] & 0x80000000;

   if (hs_enable) {
      fprintf(outfile, "instruction_base %08"PRIx64", start %08"PRIx64"\n",
              instruction_base, start);

      insns = (struct brw_instruction *) (gtt + instruction_base + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);
   }
}

static void
handle_3dstate_constant(struct gen_spec *spec, uint32_t *p)
{
   int i, j, length;
   uint32_t *dw;
   float *f;

   for (i = 0; i < 4; i++) {
      length = (p[1 + i / 2] >> (i & 1) * 16) & 0xffff;
      f = (float *) (gtt + p[3 + i * 2] + dynamic_state_base);
      dw = (uint32_t *) f;
      for (j = 0; j < length * 8; j++) {
         if (probably_float(dw[j]))
            fprintf(outfile, "  %04.3f", f[j]);
         else
            fprintf(outfile, "  0x%08x", dw[j]);

         if ((j & 7) == 7)
            fprintf(outfile, "\n");
      }
   }
}

static void
handle_3dstate_ps(struct gen_spec *spec, uint32_t *p)
{
   uint32_t mask = ~((1 << 6) - 1);
   uint64_t start;
   struct brw_instruction *insns;
   static const char unused[] = "unused";
   static const char *pixel_type[3] = {"8 pixel", "16 pixel", "32 pixel"};
   const char *k0, *k1, *k2;
   uint32_t k_mask, k1_offset, k2_offset;

   if (gen_spec_get_gen(spec) >= gen_make_gen(8, 0)) {
      k_mask = p[6] & 7;
      k1_offset = 8;
      k2_offset = 10;
   } else {
      k_mask = p[4] & 7;
      k1_offset = 6;
      k2_offset = 7;
   }

#define DISPATCH_8 1
#define DISPATCH_16 2
#define DISPATCH_32 4

   switch (k_mask) {
   case DISPATCH_8:
      k0 = pixel_type[0];
      k1 = unused;
      k2 = unused;
      break;
   case DISPATCH_16:
      k0 = pixel_type[1];
      k1 = unused;
      k2 = unused;
      break;
   case DISPATCH_8 | DISPATCH_16:
      k0 = pixel_type[0];
      k1 = unused;
      k2 = pixel_type[1];
      break;
   case DISPATCH_32:
      k0 = pixel_type[2];
      k1 = unused;
      k2 = unused;
      break;
   case DISPATCH_16 | DISPATCH_32:
      k0 = unused;
      k1 = pixel_type[2];
      k2 = pixel_type[1];
      break;
   case DISPATCH_8 | DISPATCH_16 | DISPATCH_32:
      k0 = pixel_type[0];
      k1 = pixel_type[2];
      k2 = pixel_type[1];
      break;
   default:
      k0 = unused;
      k1 = unused;
      k2 = unused;
      break;
   }

   start = instruction_base + (p[1] & mask);
   fprintf(outfile, "  Kernel[0] %s\n", k0);
   if (k0 != unused) {
      insns = (struct brw_instruction *) (gtt + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);
   }

   start = instruction_base + (p[k1_offset] & mask);
   fprintf(outfile, "  Kernel[1] %s\n", k1);
   if (k1 != unused) {
      insns = (struct brw_instruction *) (gtt + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);
   }

   start = instruction_base + (p[k2_offset] & mask);
   fprintf(outfile, "  Kernel[2] %s\n", k2);
   if (k2 != unused) {
      insns = (struct brw_instruction *) (gtt + start);
      gen_disasm_disassemble(disasm, insns, 0, stdout);
   }
}

static void
handle_3dstate_binding_table_pointers(struct gen_spec *spec, uint32_t *p)
{
   dump_binding_table(spec, p[1]);
}

static void
handle_3dstate_sampler_state_pointers(struct gen_spec *spec, uint32_t *p)
{
   dump_samplers(spec, p[1]);
}

static void
handle_3dstate_viewport_state_pointers_cc(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct gen_group *cc_viewport;

   cc_viewport = gen_spec_find_struct(spec, "CC_VIEWPORT");

   start = dynamic_state_base + (p[1] & ~0x1fu);
   for (uint32_t i = 0; i < 4; i++) {
      fprintf(outfile, "viewport %d\n", i);
      decode_group(cc_viewport, gtt + start + i * 8, 0);
   }
}

static void
handle_3dstate_viewport_state_pointers_sf_clip(struct gen_spec *spec,
                                               uint32_t *p)
{
   uint64_t start;
   struct gen_group *sf_clip_viewport;

   sf_clip_viewport = gen_spec_find_struct(spec, "SF_CLIP_VIEWPORT");

   start = dynamic_state_base + (p[1] & ~0x3fu);
   for (uint32_t i = 0; i < 4; i++) {
      fprintf(outfile, "viewport %d\n", i);
      decode_group(sf_clip_viewport, gtt + start + i * 64, 0);
   }
}

static void
handle_3dstate_blend_state_pointers(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct gen_group *blend_state;

   blend_state = gen_spec_find_struct(spec, "BLEND_STATE");

   start = dynamic_state_base + (p[1] & ~0x3fu);
   decode_group(blend_state, gtt + start, 0);
}

static void
handle_3dstate_cc_state_pointers(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct gen_group *cc_state;

   cc_state = gen_spec_find_struct(spec, "COLOR_CALC_STATE");

   start = dynamic_state_base + (p[1] & ~0x3fu);
   decode_group(cc_state, gtt + start, 0);
}

static void
handle_3dstate_scissor_state_pointers(struct gen_spec *spec, uint32_t *p)
{
   uint64_t start;
   struct gen_group *scissor_rect;

   scissor_rect = gen_spec_find_struct(spec, "SCISSOR_RECT");

   start = dynamic_state_base + (p[1] & ~0x1fu);
   decode_group(scissor_rect, gtt + start, 0);
}

static void
handle_load_register_imm(struct gen_spec *spec, uint32_t *p)
{
   struct gen_group *reg = gen_spec_find_register(spec, p[1]);

   if (reg != NULL) {
      fprintf(outfile, "register %s (0x%x): 0x%x\n",
              reg->name, reg->register_offset, p[2]);
      decode_group(reg, &p[2], 0);
   }
}

#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])

#define STATE_BASE_ADDRESS                  0x61010000

#define MEDIA_INTERFACE_DESCRIPTOR_LOAD     0x70020000

#define _3DSTATE_INDEX_BUFFER               0x780a0000
#define _3DSTATE_VERTEX_BUFFERS             0x78080000

#define _3DSTATE_VS                         0x78100000
#define _3DSTATE_GS                         0x78110000
#define _3DSTATE_HS                         0x781b0000
#define _3DSTATE_DS                         0x781d0000

#define _3DSTATE_CONSTANT_VS                0x78150000
#define _3DSTATE_CONSTANT_GS                0x78160000
#define _3DSTATE_CONSTANT_PS                0x78170000
#define _3DSTATE_CONSTANT_HS                0x78190000
#define _3DSTATE_CONSTANT_DS                0x781A0000

#define _3DSTATE_PS                         0x78200000

#define _3DSTATE_BINDING_TABLE_POINTERS_VS  0x78260000
#define _3DSTATE_BINDING_TABLE_POINTERS_HS  0x78270000
#define _3DSTATE_BINDING_TABLE_POINTERS_DS  0x78280000
#define _3DSTATE_BINDING_TABLE_POINTERS_GS  0x78290000
#define _3DSTATE_BINDING_TABLE_POINTERS_PS  0x782a0000

#define _3DSTATE_SAMPLER_STATE_POINTERS_VS  0x782b0000
#define _3DSTATE_SAMPLER_STATE_POINTERS_GS  0x782e0000
#define _3DSTATE_SAMPLER_STATE_POINTERS_PS  0x782f0000

#define _3DSTATE_VIEWPORT_STATE_POINTERS_CC 0x78230000
#define _3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP 0x78210000
#define _3DSTATE_BLEND_STATE_POINTERS       0x78240000
#define _3DSTATE_CC_STATE_POINTERS          0x780e0000
#define _3DSTATE_SCISSOR_STATE_POINTERS     0x780f0000

#define _MI_LOAD_REGISTER_IMM               0x11000000

struct custom_handler {
   uint32_t opcode;
   void (*handle)(struct gen_spec *spec, uint32_t *p);
} custom_handlers[] = {
   { STATE_BASE_ADDRESS, handle_state_base_address },
   { MEDIA_INTERFACE_DESCRIPTOR_LOAD, handle_media_interface_descriptor_load },
   { _3DSTATE_VERTEX_BUFFERS, handle_3dstate_vertex_buffers },
   { _3DSTATE_INDEX_BUFFER, handle_3dstate_index_buffer },
   { _3DSTATE_VS, handle_3dstate_vs },
   { _3DSTATE_GS, handle_3dstate_vs },
   { _3DSTATE_DS, handle_3dstate_vs },
   { _3DSTATE_HS, handle_3dstate_hs },
   { _3DSTATE_CONSTANT_VS, handle_3dstate_constant },
   { _3DSTATE_CONSTANT_GS, handle_3dstate_constant },
   { _3DSTATE_CONSTANT_PS, handle_3dstate_constant },
   { _3DSTATE_CONSTANT_HS, handle_3dstate_constant },
   { _3DSTATE_CONSTANT_DS, handle_3dstate_constant },
   { _3DSTATE_PS, handle_3dstate_ps },

   { _3DSTATE_BINDING_TABLE_POINTERS_VS, handle_3dstate_binding_table_pointers },
   { _3DSTATE_BINDING_TABLE_POINTERS_HS, handle_3dstate_binding_table_pointers },
   { _3DSTATE_BINDING_TABLE_POINTERS_DS, handle_3dstate_binding_table_pointers },
   { _3DSTATE_BINDING_TABLE_POINTERS_GS, handle_3dstate_binding_table_pointers },
   { _3DSTATE_BINDING_TABLE_POINTERS_PS, handle_3dstate_binding_table_pointers },

   { _3DSTATE_SAMPLER_STATE_POINTERS_VS, handle_3dstate_sampler_state_pointers },
   { _3DSTATE_SAMPLER_STATE_POINTERS_GS, handle_3dstate_sampler_state_pointers },
   { _3DSTATE_SAMPLER_STATE_POINTERS_PS, handle_3dstate_sampler_state_pointers },

   { _3DSTATE_VIEWPORT_STATE_POINTERS_CC, handle_3dstate_viewport_state_pointers_cc },
   { _3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP, handle_3dstate_viewport_state_pointers_sf_clip },
   { _3DSTATE_BLEND_STATE_POINTERS, handle_3dstate_blend_state_pointers },
   { _3DSTATE_CC_STATE_POINTERS, handle_3dstate_cc_state_pointers },
   { _3DSTATE_SCISSOR_STATE_POINTERS, handle_3dstate_scissor_state_pointers },
   { _MI_LOAD_REGISTER_IMM, handle_load_register_imm }
};

static void
parse_commands(struct gen_spec *spec, uint32_t *cmds, int size, int engine)
{
   uint32_t *p, *end = cmds + size / 4;
   unsigned int length, i;
   struct gen_group *inst;

   for (p = cmds; p < end; p += length) {
      inst = gen_spec_find_instruction(spec, p);
      if (inst == NULL) {
         fprintf(outfile, "unknown instruction %08x\n", p[0]);
         length = (p[0] & 0xff) + 2;
         continue;
      }
      length = gen_group_get_length(inst, p);

      const char *color, *reset_color = NORMAL;
      uint64_t offset;

      if (option_full_decode) {
         if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_START ||
             (p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_END)
            color = GREEN_HEADER;
         else
            color = BLUE_HEADER;
      } else
         color = NORMAL;

      if (option_color == COLOR_NEVER) {
         color = "";
         reset_color = "";
      }

      if (option_print_offsets)
         offset = (void *) p - gtt;
      else
         offset = 0;

      fprintf(outfile, "%s0x%08"PRIx64":  0x%08x:  %-80s%s\n",
              color, offset, p[0],
              gen_group_get_name(inst), reset_color);

      if (option_full_decode) {
         decode_group(inst, p, 1);

         for (i = 0; i < ARRAY_LENGTH(custom_handlers); i++) {
            if (gen_group_get_opcode(inst) == custom_handlers[i].opcode)
               custom_handlers[i].handle(spec, p);
         }
      }

      if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_START) {
         uint64_t start = get_address(spec, &p[1]);

         if (p[0] & (1 << 22)) {
            /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" set acts
             * like a subroutine call.  Commands that come afterwards get
             * processed once the 2nd level batch buffer returns with
             * MI_BATCH_BUFFER_END.
             */
            parse_commands(spec, gtt + start, gtt_end - start, engine);
         } else {
            /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" unset acts
             * like a goto.  Nothing after it will ever get processed.  In
             * order to prevent the recursion from growing, we just reset the
             * loop and continue;
             */
            p = gtt + start;
            /* We don't know where secondaries end so use the GTT end */
            end = gtt + gtt_end;
            length = 0;
            continue;
         }
      } else if ((p[0] & 0xffff0000) == AUB_MI_BATCH_BUFFER_END) {
         break;
      }
   }
}

#define GEN_ENGINE_RENDER 1
#define GEN_ENGINE_BLITTER 2

static void
handle_trace_block(uint32_t *p)
{
   int operation = p[1] & AUB_TRACE_OPERATION_MASK;
   int type = p[1] & AUB_TRACE_TYPE_MASK;
   int address_space = p[1] & AUB_TRACE_ADDRESS_SPACE_MASK;
   uint64_t offset = p[3];
   uint32_t size = p[4];
   int header_length = p[0] & 0xffff;
   uint32_t *data = p + header_length + 2;
   int engine = GEN_ENGINE_RENDER;

   if (gen_spec_get_gen(spec) >= gen_make_gen(8,0))
      offset += (uint64_t) p[5] << 32;

   switch (operation) {
   case AUB_TRACE_OP_DATA_WRITE:
      if (address_space != AUB_TRACE_MEMTYPE_GTT)
         break;
      if (gtt_size < offset + size) {
         fprintf(stderr, "overflow gtt space: %s\n", strerror(errno));
         exit(EXIT_FAILURE);
      }
      memcpy((char *) gtt + offset, data, size);
      if (gtt_end < offset + size)
         gtt_end = offset + size;
      break;
   case AUB_TRACE_OP_COMMAND_WRITE:
      switch (type) {
      case AUB_TRACE_TYPE_RING_PRB0:
         engine = GEN_ENGINE_RENDER;
         break;
      case AUB_TRACE_TYPE_RING_PRB2:
         engine = GEN_ENGINE_BLITTER;
         break;
      default:
         fprintf(outfile, "command write to unknown ring %d\n", type);
         break;
      }

      parse_commands(spec, data, size, engine);
      gtt_end = 0;
      break;
   }
}

static void
handle_trace_header(uint32_t *p)
{
   /* The intel_aubdump tool from IGT is kind enough to put a PCI-ID= tag in
    * the AUB header comment.  If the user hasn't specified a hardware
    * generation, try to use the one from the AUB file.
    */
   uint32_t *end = p + (p[0] & 0xffff) + 2;
   int aub_pci_id = 0;
   if (end > &p[12] && p[12] > 0)
      sscanf((char *)&p[13], "PCI-ID=%i", &aub_pci_id);

   if (pci_id == 0)
      pci_id = aub_pci_id;

   struct gen_device_info devinfo;
   if (!gen_get_device_info(pci_id, &devinfo)) {
      fprintf(stderr, "can't find device information: pci_id=0x%x\n", pci_id);
      exit(EXIT_FAILURE);
   }

   if (xml_path == NULL)
      spec = gen_spec_load(&devinfo);
   else
      spec = gen_spec_load_from_path(&devinfo, xml_path);
   disasm = gen_disasm_create(pci_id);

   if (spec == NULL || disasm == NULL)
      exit(EXIT_FAILURE);

   fprintf(outfile, "%sAubinator: Intel AUB file decoder.%-80s%s\n",
           GREEN_HEADER, "", NORMAL);

   if (input_file)
      fprintf(outfile, "File name:        %s\n", input_file);

   if (aub_pci_id)
      fprintf(outfile, "PCI ID:           0x%x\n", aub_pci_id);

   char app_name[33];
   strncpy(app_name, (char *)&p[2], 32);
   app_name[32] = 0;
   fprintf(outfile, "Application name: %s\n", app_name);

   fprintf(outfile, "Decoding as:      %s\n", gen_get_device_name(pci_id));

   /* Throw in a new line before the first batch */
   fprintf(outfile, "\n");
}

struct aub_file {
   FILE *stream;

   uint32_t *map, *end, *cursor;
   uint32_t *mem_end;
};

static struct aub_file *
aub_file_open(const char *filename)
{
   struct aub_file *file;
   struct stat sb;
   int fd;

   file = calloc(1, sizeof *file);
   fd = open(filename, O_RDONLY);
   if (fd == -1) {
      fprintf(stderr, "open %s failed: %s\n", filename, strerror(errno));
      exit(EXIT_FAILURE);
   }

   if (fstat(fd, &sb) == -1) {
      fprintf(stderr, "stat failed: %s\n", strerror(errno));
      exit(EXIT_FAILURE);
   }

   file->map = mmap(NULL, sb.st_size,
                    PROT_READ, MAP_SHARED, fd, 0);
   if (file->map == MAP_FAILED) {
      fprintf(stderr, "mmap failed: %s\n", strerror(errno));
      exit(EXIT_FAILURE);
   }

   file->cursor = file->map;
   file->end = file->map + sb.st_size / 4;

   return file;
}

static struct aub_file *
aub_file_stdin(void)
{
   struct aub_file *file;

   file = calloc(1, sizeof *file);
   file->stream = stdin;

   return file;
}

#define TYPE(dw)       (((dw) >> 29) & 7)
#define OPCODE(dw)     (((dw) >> 23) & 0x3f)
#define SUBOPCODE(dw)  (((dw) >> 16) & 0x7f)

#define MAKE_HEADER(type, opcode, subopcode) \
                   (((type) << 29) | ((opcode) << 23) | ((subopcode) << 16))

#define TYPE_AUB            0x7

/* Classic AUB opcodes */
#define OPCODE_AUB          0x01
#define SUBOPCODE_HEADER    0x05
#define SUBOPCODE_BLOCK     0x41
#define SUBOPCODE_BMP       0x1e

/* Newer version AUB opcode */
#define OPCODE_NEW_AUB      0x2e
#define SUBOPCODE_VERSION   0x00
#define SUBOPCODE_REG_WRITE 0x03
#define SUBOPCODE_MEM_POLL  0x05
#define SUBOPCODE_MEM_WRITE 0x06

#define MAKE_GEN(major, minor) ( ((major) << 8) | (minor) )

struct {
   const char *name;
   uint32_t gen;
} device_map[] = {
   { "bwr", MAKE_GEN(4, 0) },
   { "cln", MAKE_GEN(4, 0) },
   { "blc", MAKE_GEN(4, 0) },
   { "ctg", MAKE_GEN(4, 0) },
   { "el", MAKE_GEN(4, 0) },
   { "il", MAKE_GEN(4, 0) },
   { "sbr", MAKE_GEN(6, 0) },
   { "ivb", MAKE_GEN(7, 0) },
   { "lrb2", MAKE_GEN(0, 0) },
   { "hsw", MAKE_GEN(7, 5) },
   { "vlv", MAKE_GEN(7, 0) },
   { "bdw", MAKE_GEN(8, 0) },
   { "skl", MAKE_GEN(9, 0) },
   { "chv", MAKE_GEN(8, 0) },
   { "bxt", MAKE_GEN(9, 0) }
};

enum {
   AUB_ITEM_DECODE_OK,
   AUB_ITEM_DECODE_FAILED,
   AUB_ITEM_DECODE_NEED_MORE_DATA,
};

static int
aub_file_decode_batch(struct aub_file *file)
{
   uint32_t *p, h, device, data_type, *new_cursor;
   int header_length, bias;

   if (file->end - file->cursor < 1)
      return AUB_ITEM_DECODE_NEED_MORE_DATA;

   p = file->cursor;
   h = *p;
   header_length = h & 0xffff;

   switch (OPCODE(h)) {
   case OPCODE_AUB:
      bias = 2;
      break;
   case OPCODE_NEW_AUB:
      bias = 1;
      break;
   default:
      fprintf(outfile, "unknown opcode %d at %td/%td\n",
              OPCODE(h), file->cursor - file->map,
              file->end - file->map);
      return AUB_ITEM_DECODE_FAILED;
   }

   new_cursor = p + header_length + bias;
   if ((h & 0xffff0000) == MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK)) {
      if (file->end - file->cursor < 4)
         return AUB_ITEM_DECODE_NEED_MORE_DATA;
      new_cursor += p[4] / 4;
   }

   if (new_cursor > file->end)
      return AUB_ITEM_DECODE_NEED_MORE_DATA;

   switch (h & 0xffff0000) {
   case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_HEADER):
      handle_trace_header(p);
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BLOCK):
      handle_trace_block(p);
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_AUB, SUBOPCODE_BMP):
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_VERSION):
      fprintf(outfile, "version block: dw1 %08x\n", p[1]);
      device = (p[1] >> 8) & 0xff;
      fprintf(outfile, "  device %s\n", device_map[device].name);
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_REG_WRITE):
      fprintf(outfile, "register write block: (dwords %d)\n", h & 0xffff);
      fprintf(outfile, "  reg 0x%x, data 0x%x\n", p[1], p[5]);
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_WRITE):
      fprintf(outfile, "memory write block (dwords %d):\n", h & 0xffff);
      fprintf(outfile, "  address 0x%"PRIx64"\n", *(uint64_t *) &p[1]);
      data_type = (p[3] >> 20) & 0xff;
      if (data_type != 0)
         fprintf(outfile, "  data type 0x%x\n", data_type);
      fprintf(outfile, "  address space 0x%x\n", (p[3] >> 28) & 0xf);
      break;
   case MAKE_HEADER(TYPE_AUB, OPCODE_NEW_AUB, SUBOPCODE_MEM_POLL):
      fprintf(outfile, "memory poll block (dwords %d):\n", h & 0xffff);
      break;
   default:
      fprintf(outfile, "unknown block type=0x%x, opcode=0x%x, "
             "subopcode=0x%x (%08x)\n", TYPE(h), OPCODE(h), SUBOPCODE(h), h);
      break;
   }
   file->cursor = new_cursor;

   return AUB_ITEM_DECODE_OK;
}

static int
aub_file_more_stuff(struct aub_file *file)
{
   return file->cursor < file->end || (file->stream && !feof(file->stream));
}

#define AUB_READ_BUFFER_SIZE (4096)
#define MAX(a, b) ((a) < (b) ? (b) : (a))

static void
aub_file_data_grow(struct aub_file *file)
{
   size_t old_size = (file->mem_end - file->map) * 4;
   size_t new_size = MAX(old_size * 2, AUB_READ_BUFFER_SIZE);
   uint32_t *new_start = realloc(file->map, new_size);

   file->cursor = new_start + (file->cursor - file->map);
   file->end = new_start + (file->end - file->map);
   file->map = new_start;
   file->mem_end = file->map + (new_size / 4);
}

static bool
aub_file_data_load(struct aub_file *file)
{
   size_t r;

   if (file->stream == NULL)
      return false;

   /* First remove any consumed data */
   if (file->cursor > file->map) {
      memmove(file->map, file->cursor,
              (file->end - file->cursor) * 4);
      file->end -= file->cursor - file->map;
      file->cursor = file->map;
   }

   /* Then load some new data in */
   if ((file->mem_end - file->end) < (AUB_READ_BUFFER_SIZE / 4))
      aub_file_data_grow(file);

   r = fread(file->end, 1, (file->mem_end - file->end) * 4, file->stream);
   file->end += r / 4;

   return r != 0;
}

static void
setup_pager(void)
{
   int fds[2];
   pid_t pid;

   if (!isatty(1))
      return;

   if (pipe(fds) == -1)
      return;

   pid = fork();
   if (pid == -1)
      return;

   if (pid == 0) {
      close(fds[1]);
      dup2(fds[0], 0);
      execlp("less", "less", "-FRSi", NULL);
   }

   close(fds[0]);
   dup2(fds[1], 1);
   close(fds[1]);
}

static void
print_help(const char *progname, FILE *file)
{
   fprintf(file,
           "Usage: %s [OPTION]... [FILE]\n"
           "Decode aub file contents from either FILE or the standard input.\n\n"
           "A valid --gen option must be provided.\n\n"
           "      --help          display this help and exit\n"
           "      --gen=platform  decode for given platform (ivb, byt, hsw, bdw, chv, skl, kbl or bxt)\n"
           "      --headers       decode only command headers\n"
           "      --color[=WHEN]  colorize the output; WHEN can be 'auto' (default\n"
           "                        if omitted), 'always', or 'never'\n"
           "      --no-pager      don't launch pager\n"
           "      --no-offsets    don't print instruction offsets\n"
           "      --xml=DIR       load hardware xml description from directory DIR\n",
           progname);
}

int main(int argc, char *argv[])
{
   struct aub_file *file;
   int c, i;
   bool help = false, pager = true;
   const struct {
      const char *name;
      int pci_id;
   } gens[] = {
      { "ivb", 0x0166 }, /* Intel(R) Ivybridge Mobile GT2 */
      { "hsw", 0x0416 }, /* Intel(R) Haswell Mobile GT2 */
      { "byt", 0x0155 }, /* Intel(R) Bay Trail */
      { "bdw", 0x1616 }, /* Intel(R) HD Graphics 5500 (Broadwell GT2) */
      { "chv", 0x22B3 }, /* Intel(R) HD Graphics (Cherryview) */
      { "skl", 0x1912 }, /* Intel(R) HD Graphics 530 (Skylake GT2) */
      { "kbl", 0x591D }, /* Intel(R) Kabylake GT2 */
      { "bxt", 0x0A84 }  /* Intel(R) HD Graphics (Broxton) */
   };
   const struct option aubinator_opts[] = {
      { "help",       no_argument,       (int *) &help,                 true },
      { "no-pager",   no_argument,       (int *) &pager,                false },
      { "no-offsets", no_argument,       (int *) &option_print_offsets, false },
      { "gen",        required_argument, NULL,                          'g' },
      { "headers",    no_argument,       (int *) &option_full_decode,   false },
      { "color",      required_argument, NULL,                          'c' },
      { "xml",        required_argument, NULL,                          'x' },
      { NULL,         0,                 NULL,                          0 }
   };

   outfile = stdout;

   i = 0;
   while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) {
      switch (c) {
      case 'g':
         for (i = 0; i < ARRAY_SIZE(gens); i++) {
            if (!strcmp(optarg, gens[i].name)) {
               pci_id = gens[i].pci_id;
               break;
            }
         }
         if (i == ARRAY_SIZE(gens)) {
            fprintf(stderr, "can't parse gen: '%s', expected ivb, byt, hsw, "
                                   "bdw, chv, skl, kbl or bxt\n", optarg);
            exit(EXIT_FAILURE);
         }
         break;
      case 'c':
         if (optarg == NULL || strcmp(optarg, "always") == 0)
            option_color = COLOR_ALWAYS;
         else if (strcmp(optarg, "never") == 0)
            option_color = COLOR_NEVER;
         else if (strcmp(optarg, "auto") == 0)
            option_color = COLOR_AUTO;
         else {
            fprintf(stderr, "invalid value for --color: %s", optarg);
            exit(EXIT_FAILURE);
         }
         break;
      case 'x':
         xml_path = strdup(optarg);
         break;
      default:
         break;
      }
   }

   if (help || argc == 1) {
      print_help(argv[0], stderr);
      exit(0);
   }

   if (optind < argc)
      input_file = argv[optind];

   /* Do this before we redirect stdout to pager. */
   if (option_color == COLOR_AUTO)
      option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER;

   if (isatty(1) && pager)
      setup_pager();

   if (input_file == NULL)
      file = aub_file_stdin();
   else
      file = aub_file_open(input_file);

   /* mmap a terabyte for our gtt space. */
   gtt_size = 1ull << 40;
   gtt = mmap(NULL, gtt_size, PROT_READ | PROT_WRITE,
              MAP_PRIVATE | MAP_ANONYMOUS |  MAP_NORESERVE, -1, 0);
   if (gtt == MAP_FAILED) {
      fprintf(stderr, "failed to alloc gtt space: %s\n", strerror(errno));
      exit(EXIT_FAILURE);
   }

   while (aub_file_more_stuff(file)) {
      switch (aub_file_decode_batch(file)) {
      case AUB_ITEM_DECODE_OK:
         break;
      case AUB_ITEM_DECODE_NEED_MORE_DATA:
         if (!file->stream) {
            file->cursor = file->end;
            break;
         }
         if (aub_file_more_stuff(file) && !aub_file_data_load(file)) {
            fprintf(stderr, "failed to load data from stdin\n");
            exit(EXIT_FAILURE);
         }
         break;
      default:
         fprintf(stderr, "failed to parse aubdump data\n");
         exit(EXIT_FAILURE);
      }
   }


   fflush(stdout);
   /* close the stdout which is opened to write the output */
   close(1);
   free(xml_path);

   wait(NULL);

   return EXIT_SUCCESS;
}