aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/i386/bits/string.h
blob: 5a67c1b4e18b3463bdc9dd074c5fe5a81d226d3f (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
/* Optimized, inlined string functions.  i386 version.
   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef _STRING_H
# error "Never use <bits/string.h> directly; include <string.h> instead."
#endif

/* The ix86 processors can access unaligned multi-byte variables.  */
#define _STRING_ARCH_unaligned	1


/* We only provide optimizations if the user selects them and if
   GNU CC is used.  */
#if !defined __NO_STRING_INLINES && defined __USE_STRING_INLINES \
    && defined __GNUC__ && __GNUC__ >= 2

#ifdef __cplusplus
# define __STRING_INLINE inline
#else
# define __STRING_INLINE extern __inline
#endif


/* Copy N bytes of SRC to DEST.  */
#define _HAVE_STRING_ARCH_memcpy 1
#define memcpy(dest, src, n) \
  (__extension__ (__builtin_constant_p (n)				      \
		  ? __memcpy_c (dest, src, n)				      \
		  : memcpy (dest, src, n)))
/* This looks horribly ugly, but the compiler can optimize it totally,
   as the count is constant.  */
__STRING_INLINE void *__memcpy_c (void *__dest, __const void *__src,
				  size_t __n);

__STRING_INLINE void *
__memcpy_c (void *__dest, __const void *__src, size_t __n)
{
  register unsigned long int __d0, __d1, __d2;
  switch (__n)
    {
    case 0:
      return __dest;
    case 1:
      *(unsigned char *) __dest = *(const unsigned char *) __src;
      return __dest;
    case 2:
      *(unsigned short int *) __dest = *(const unsigned short int *) __src;
      return __dest;
    case 3:
      *(unsigned short int *) __dest = *(const unsigned short int *) __src;
      *(2 + (unsigned char *) __dest) = *(2 + (const unsigned char *) __src);
      return __dest;
    case 4:
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      return __dest;
    case 6:	/* for ethernet addresses */
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      *(2 + (unsigned short int *) __dest) =
	*(2 + (const unsigned short int *) __src);
      return __dest;
    case 8:
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      *(1 + (unsigned long int *) __dest) =
	*(1 + (const unsigned long int *) __src);
      return __dest;
    case 12:
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      *(1 + (unsigned long int *) __dest) =
	*(1 + (const unsigned long int *) __src);
      *(2 + (unsigned long int *) __dest) =
	*(2 + (const unsigned long int *) __src);
      return __dest;
    case 16:
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      *(1 + (unsigned long int *) __dest) =
	*(1 + (const unsigned long int *) __src);
      *(2 + (unsigned long int *) __dest) =
	*(2 + (const unsigned long int *) __src);
      *(3 + (unsigned long int *) __dest) =
	*(3 + (const unsigned long int *) __src);
      return __dest;
    case 20:
      *(unsigned long int *) __dest = *(const unsigned long int *) __src;
      *(1 + (unsigned long int *) __dest) =
	*(1 + (const unsigned long int *) __src);
      *(2 + (unsigned long int *) __dest) =
	*(2 + (const unsigned long int *) __src);
      *(3 + (unsigned long int *) __dest) =
	*(3 + (const unsigned long int *) __src);
      *(4 + (unsigned long int *) __dest) =
	*(4 + (const unsigned long int *) __src);
      return __dest;
    }
#define __COMMON_CODE(x) \
  __asm__ __volatile__							      \
    ("cld\n\t"								      \
     "rep; movsl"							      \
     x									      \
     : "=&c" (__d0), "=&D" (__d1), "=&S" (__d2)				      \
     : "0" (__n / 4), "1" (__dest), "2" (__src)				      \
     : "memory");

  switch (__n % 4)
    {
    case 0:
      __COMMON_CODE ("");
      return __dest;
    case 1:
      __COMMON_CODE ("\n\tmovsb");
      return __dest;
    case 2:
      __COMMON_CODE ("\n\tmovsw");
      return __dest;
    case 3:
      __COMMON_CODE ("\n\tmovsw\n\tmovsb");
      return __dest;
    }
#undef __COMMON_CODE
}


/* Copy N bytes of SRC to DEST, guaranteeing
   correct behavior for overlapping strings.  */
#define _HAVE_STRING_ARCH_memmove 1
__STRING_INLINE void *
memmove (void *__dest, __const void *__src, size_t __n)
{
  register unsigned long int __d0, __d1, __d2;
  if (__dest < __src)
    __asm__ __volatile__
      ("cld\n\t"
       "rep\n\t"
       "movsb"
       : "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
       : "0" (__n), "1" (__src), "2" (__dest)
       : "memory");
  else
    __asm__ __volatile__
      ("std\n\t"
       "rep\n\t"
       "movsb\n\t"
       "cld"
       : "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
       : "0" (__n), "1" (__n - 1 + (const char *) __src),
	 "2" (__n - 1 + (char *) __dest)
       : "memory");
  return __dest;
}


/* Set N bytes of S to C.  */
#define _HAVE_STRING_ARCH_memset 1
#define memset(s, c, n) \
  (__extension__ (__builtin_constant_p (c)				      \
		  ? (__builtin_constant_p (n)				      \
		     ? __memset_cc (s, 0x01010101UL * (unsigned char) (c), n) \
		     : __memset_cg (s, 0x01010101UL * (unsigned char) (c), n))\
		  : __memset_gg (s, c, n)))

__STRING_INLINE void *__memset_cc (void *__s, unsigned long int __pattern,
				   size_t __n);

__STRING_INLINE void *
__memset_cc (void *__s, unsigned long int __pattern, size_t __n)
{
  register unsigned long int __d0, __d1;
  switch (__n)
    {
    case 0:
      return __s;
    case 1:
      *(unsigned char *) __s = __pattern;
      return __s;
    case 2:
      *(unsigned short int *) __s = __pattern;
      return __s;
    case 3:
      *(unsigned short int *) __s = __pattern;
      *(2 + (unsigned char *) __s) = __pattern;
      return __s;
    case 4:
      *(unsigned long *) __s = __pattern;
      return __s;
	}
#define __COMMON_CODE(x) \
  __asm__ __volatile__							      \
    ("cld\n\t"								      \
     "rep; stosl"							      \
     x									      \
     : "=&c" (__d0), "=&D" (__d1)					      \
     : "a" (__pattern), "0" (__n / 4), "1" (__s)			      \
     : "memory")

  switch (__n % 4)
    {
    case 0:
      __COMMON_CODE ("");
      return __s;
    case 1:
      __COMMON_CODE ("\n\tstosb");
      return __s;
    case 2:
      __COMMON_CODE ("\n\tstosw");
      return __s;
    case 3:
      __COMMON_CODE ("\n\tstosw\n\tstosb");
      return __s;
    }
#undef __COMMON_CODE
}

__STRING_INLINE void *__memset_cg (void *__s, unsigned long __c, size_t __n);

__STRING_INLINE void *
__memset_cg (void *__s, unsigned long __c, size_t __n)
{
  register unsigned long int __d0, __d1;
  __asm__ __volatile__
    ("cld\n\t"
     "rep; stosl\n\t"
     "testb	$2,%b3\n\t"
     "je	1f\n\t"
     "stosw\n"
     "1:\n\t"
     "testb	$1,%b3\n\t"
     "je	2f\n\t"
     "stosb\n"
     "2:"
     : "=&c" (__d0), "=&D" (__d1)
     : "a" (__c), "q" (__n), "0" (__n / 4), "1" (__s)
     : "memory");
  return __s;
}

__STRING_INLINE void *__memset_gg (void *__s, char __c, size_t __n);

__STRING_INLINE void *
__memset_gg (void *__s, char __c, size_t __n)
{
  register unsigned long int __d0, __d1;
  __asm__ __volatile__
    ("cld\n\t"
     "rep; stosb"
     : "=&D" (__d0), "=&c" (__d1)
     : "a" (__c), "0" (__s), "1" (__n)
     : "memory");
  return __s;
}




/* Search N bytes of S for C.  */
#define _HAVE_STRING_ARCH_memchr 1
__STRING_INLINE void *
memchr (__const void *__s, int __c, size_t __n)
{
  register unsigned long int __d0;
  register void *__res;
  if (__n == 0)
    return NULL;
  __asm__ __volatile__
    ("cld\n\t"
     "repne; scasb\n\t"
     "je 1f\n\t"
     "movl $1,%0\n"
     "1:"
     : "=D" (__res), "=&c" (__d0)
     : "a" (__c), "0" (__s), "1" (__n));
  return __res - 1;
}


/* Return the length of S.  */
#define _HAVE_STRING_ARCH_strlen 1
__STRING_INLINE size_t
strlen (__const char *__str)
{
  register unsigned long int __d0;
  register size_t __res;
  __asm__ __volatile__
    ("cld\n\t"
     "repne; scasb\n\t"
     "notl %0"
     : "=c" (__res), "=&D" (__d0)
     : "1" (__str), "a" (0), "0" (0xffffffff)
     : "cc");
  return __res - 1;
}


/* Copy SRC to DEST.  */
#define _HAVE_STRING_ARCH_strcpy 1
__STRING_INLINE char *
strcpy (char *__dest, __const char *__src)
{
  register unsigned long int __d0, __d1;
  __asm__ __volatile__
    ("cld\n"
     "1:\n\t"
     "lodsb\n\t"
     "stosb\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b"
     : "=&S" (__d0), "=&D" (__d1)
     : "0" (__src), "1" (__dest)
     : "ax", "memory", "cc");
  return __dest;
}


/* Copy no more than N characters of SRC to DEST.  */
#define _HAVE_STRING_ARCH_strncpy 1
__STRING_INLINE char *
strncpy (char *__dest, __const char *__src, size_t __n)
{
  register unsigned long int __d0, __d1, __d2;
  __asm__ __volatile__
    ("cld\n"
     "1:\n\t"
     "decl	%2\n\t"
     "js	2f\n\t"
     "lodsb\n\t"
     "stosb\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "rep; stosb\n"
     "2:"
     : "=&S" (__d0), "=&D" (__d1), "=&c" (__d2)
     : "0" (__src), "1" (__dest), "2" (__n)
     : "ax", "memory", "cc");
  return __dest;
}


/* Append SRC onto DEST.  */
#define _HAVE_STRING_ARCH_strcat 1
__STRING_INLINE char *
strcat (char *__dest, __const char *__src)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  __asm__ __volatile__
    ("cld\n\t"
     "repne; scasb\n\t"
     "decl	%1\n"
     "1:\n\t"
     "lodsb\n\t"
     "stosb\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b"
     : "=&S" (__d0), "=&D" (__d1), "=&c" (__d2), "=&a" (__d3)
     : "0" (__src), "1" (__dest), "2" (0xffffffff), "3" (0)
     : "memory", "cc");
  return __dest;
}


/* Append no more than N characters from SRC onto DEST.  */
#define _HAVE_STRING_ARCH_strncat 1
__STRING_INLINE char *
strncat (char *__dest, __const char *__src, size_t __n)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  __asm__ __volatile__
    ("cld\n\t"
     "repne; scasb\n\t"
     "decl	%1\n\t"
     "movl	%4,%2\n"
     "1:\n\t"
     "decl	%2\n\t"
     "js	2f\n\t"
     "lodsb\n\t"
     "stosb\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "jmp	3f\n"
     "2:\n\t"
     "xorl	%3,%3\n\t"
     "stosb\n"
     "3:"
     : "=&S" (__d0), "=&D" (__d1), "=&c" (__d2), "=&a" (__d3)
     : "g" (__n), "0" (__src), "1" (__dest), "2" (0xffffffff), "3" (0)
     : "memory", "cc");
  return __dest;
}


/* Compare S1 and S2.  */
#define _HAVE_STRING_ARCH_strcmp 1
__STRING_INLINE int
strcmp (__const char *__s1, __const char *__s2)
{
  register unsigned long int __d0, __d1;
  register int __res;
  __asm__ __volatile__
    ("cld\n"
     "1:\n\t"
     "lodsb\n\t"
     "scasb\n\t"
     "jne	2f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "xorl	%%eax,%%eax\n\t"
     "jmp	3f\n"
     "2:\n\t"
     "sbbl	%%eax,%%eax\n\t"
     "orb	$1,%%eax\n"
     "3:"
     : "=a" (__res), "=&S" (__d0), "=&D" (__d1)
     : "1" (__s1), "2" (__s2)
     : "cc");
  return __res;
}


/* Compare N characters of S1 and S2.  */
#define _HAVE_STRING_ARCH_strncmp 1
__STRING_INLINE int
strncmp (__const char *__s1, __const char *__s2, size_t __n)
{
  register unsigned long int __d0, __d1, __d2;
  register int __res;
  __asm__ __volatile__
    ("cld\n"
     "1:\n\t"
     "decl	%3\n\t"
     "js	2f\n\t"
     "lodsb\n\t"
     "scasb\n\t"
     "jne	3f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n"
     "2:\n\t"
     "xorl	%%eax,%%eax\n\t"
     "jmp	4f\n"
     "3:\n\t"
     "sbbl	%%eax,%%eax\n\t"
     "orb	$1,%%al\n"
     "4:"
     : "=a" (__res), "=&S" (__d0), "=&D" (__d1), "=&c" (__d2)
     : "1" (__s1), "2" (__s2), "3" (__n)
     : "cc");
  return __res;
}


/* Find the first occurrence of C in S.  */
#define _HAVE_STRING_ARCH_strchr 1
#define strchr(s, c) \
  (__extension__ (__builtin_constant_p (c)				      \
		  ? __strchr_c (s, ((c) & 0xff) << 8)			      \
		  : __strchr_g (s, c)))

__STRING_INLINE char *__strchr_g (__const char *__s, int __c);

__STRING_INLINE char *
__strchr_g (__const char *__s, int __c)
{
  register unsigned long int __d0;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "movb	%%al,%%ah\n"
     "1:\n\t"
     "lodsb\n\t"
     "cmpb	%%ah,%%al\n\t"
     "je	2f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "movl	$1,%1\n"
     "2:\n\t"
     "movl	%1,%0"
     : "=a" (__res), "=&S" (__d0)
     : "0" (__c), "1" (__s)
     : "cc");
  return __res - 1;
}

__STRING_INLINE char *__strchr_c (__const char *__s, int __c);

__STRING_INLINE char *
__strchr_c (__const char *__s, int __c)
{
  register unsigned long int __d0;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "1:\n\t"
     "lodsb\n\t"
     "cmpb	%%ah,%%al\n\t"
     "je	2f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "movl	$1,%1\n"
     "2:\n\t"
     "movl	%1,%0"
     : "=a" (__res), "=&S" (__d0)
     : "0" (__c), "1" (__s)
     : "cc");
  return __res - 1;
}


/* Find the first occurrence of C in S or the final NUL byte.  */
#define _HAVE_STRING_ARCH_strchrnul 1
#define __strchrnul(s, c) \
  (__extension__ (__builtin_constant_p (c)				      \
		  ? ((c) == '\0'					      \
		     ? (char *) __rawmemchr (s, c)			      \
		     : __strchrnul_c (s, ((c) & 0xff) << 8))		      \
		  : __strchrnul_g (s, c)))

__STRING_INLINE char *__strchrnul_g (__const char *__s, int __c);

__STRING_INLINE char *
__strchrnul_g (__const char *__s, int __c)
{
  register unsigned long int __d0;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "movb	%%al,%%ah\n"
     "1:\n\t"
     "lodsb\n\t"
     "cmpb	%%ah,%%al\n\t"
     "je	2f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "2:\n\t"
     "movl	%1,%0"
     : "=a" (__res), "=&S" (__d0)
     : "0" (__c), "1" (__s)
     : "cc");
  return __res - 1;
}

__STRING_INLINE char *__strchrnul_c (__const char *__s, int __c);

__STRING_INLINE char *
__strchrnul_c (__const char *__s, int __c)
{
  register unsigned long int __d0;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "1:\n\t"
     "lodsb\n\t"
     "cmpb	%%ah,%%al\n\t"
     "je	2f\n\t"
     "testb	%%al,%%al\n\t"
     "jne	1b\n\t"
     "2:\n\t"
     "movl	%1,%0"
     : "=a" (__res), "=&S" (__d0)
     : "0" (__c), "1" (__s)
     : "cc");
  return __res - 1;
}
#ifdef __USE_GNU
# define strchrnul(s, c) __strchrnul (s, c)
#endif


/* Return the length of the initial segment of S which
   consists entirely of characters not in REJECT.  */
#define _HAVE_STRING_ARCH_strcspn 1
#ifdef __PIC__
__STRING_INLINE size_t
strcspn (__const char *__s, __const char *__reject)
{
  register unsigned long int __d0, __d1, __d2;
  register char *__res;
  __asm__ __volatile__
    ("pushl	%%ebx\n\t"
     "cld\n\t"
     "movl	%4,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%ebx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%4,%%edi\n\t"
     "movl	%%ebx,%%ecx\n\t"
     "repne; scasb\n\t"
     "jne	1b\n"
     "2:\n\t"
     "popl	%%ebx"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
     : "d" (__reject), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return (__res - 1) - __s;
}
#else
__STRING_INLINE size_t
strcspn (__const char *__s, __const char *__reject)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "movl	%5,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%edx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%5,%%edi\n\t"
     "movl	%%edx,%%ecx\n\t"
     "repne; scasb\n\t"
     "jne	1b\n"
     "2:"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
     : "g" (__reject), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return (__res - 1) - __s;
}
#endif


/* Return the length of the initial segment of S which
   consists entirely of characters in ACCEPT.  */
#define _HAVE_STRING_ARCH_strspn 1
#ifdef __PIC__
__STRING_INLINE size_t
strspn (__const char *__s, __const char *__accept)
{
  register unsigned long int __d0, __d1, __d2;
  register char *__res;
  __asm__ __volatile__
    ("pushl	%%ebx\n\t"
     "cld\n\t"
     "movl	%4,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%ebx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%4,%%edi\n\t"
     "movl	%%ebx,%%ecx\n\t"
     "repne; scasb\n\t"
     "je	1b\n"
     "2:\n\t"
     "popl	%%ebx"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
     : "r" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return (__res - 1) - __s;
}
#else
__STRING_INLINE size_t
strspn (__const char *__s, __const char *__accept)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "movl	%5,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%edx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%5,%%edi\n\t"
     "movl	%%edx,%%ecx\n\t"
     "repne; scasb\n\t"
     "je	1b\n"
     "2:"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
     : "g" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return (__res - 1) - __s;
}
#endif


/* Find the first occurrence in S of any character in ACCEPT.  */
#define _HAVE_STRING_ARCH_strpbrk 1
#ifdef __PIC__
__STRING_INLINE char *
strpbrk (__const char *__s, __const char *__accept)
{
  unsigned long int __d0, __d1, __d2;
  register char *__res;
  __asm__ __volatile__
    ("pushl	%%ebx\n\t"
     "cld\n\t"
     "movl	%4,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%ebx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%4,%%edi\n\t"
     "movl	%%ebx,%%ecx\n\t"
     "repne; scasb\n\t"
     "jne	1b\n\t"
     "decl	%0\n\t"
     "jmp	3f\n"
     "2:\n\t"
     "xorl	%0,%0\n"
     "3:\n\t"
     "popl	%%ebx"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
     : "r" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return __res;
}
#else
__STRING_INLINE char *
strpbrk (__const char *__s, __const char *__accept)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t"
     "movl	%5,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"
     "movl	%%ecx,%%edx\n"
     "1:\n\t"
     "lodsb\n\t"
     "testb	%%al,%%al\n\t"
     "je	2f\n\t"
     "movl	%5,%%edi\n\t"
     "movl	%%edx,%%ecx\n\t"
     "repne; scasb\n\t"
     "jne	1b\n\t"
     "decl	%0\n\t"
     "jmp	3f\n"
     "2:\n\t"
     "xorl	%0,%0\n"
     "3:"
     : "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
     : "g" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
     : "cc");
  return __res;
}
#endif


/* Find the first occurrence of NEEDLE in HAYSTACK.  */
#define _HAVE_STRING_ARCH_strstr 1
#ifdef __PIC__
__STRING_INLINE char *
strstr (__const char *__haystack, __const char *__needle)
{
  register unsigned long int __d0, __d1, __d2;
  register char *__res;
  __asm__ __volatile__
    ("pushl	%%ebx\n\t"
     "cld\n\t" \
     "movl	%4,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"	/* NOTE! This also sets Z if searchstring='' */
     "movl	%%ecx,%%ebx\n"
     "1:\n\t"
     "movl	%4,%%edi\n\t"
     "movl	%%esi,%%eax\n\t"
     "movl	%%ebx,%%ecx\n\t"
     "repe; cmpsb\n\t"
     "je	2f\n\t"		/* also works for empty string, see above */
     "xchgl	%%eax,%%esi\n\t"
     "incl	%%esi\n\t"
     "cmpb	$0,-1(%%eax)\n\t"
     "jne	1b\n\t"
     "xorl	%%eax,%%eax\n\t"
     "2:\n\t"
     "popl	%%ebx"
     : "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
     : "r" (__needle), "0" (0), "1" (0xffffffff), "2" (__haystack)
     : "cc");
  return __res;
}
#else
__STRING_INLINE char *
strstr (__const char *__haystack, __const char *__needle)
{
  register unsigned long int __d0, __d1, __d2, __d3;
  register char *__res;
  __asm__ __volatile__
    ("cld\n\t" \
     "movl	%5,%%edi\n\t"
     "repne; scasb\n\t"
     "notl	%%ecx\n\t"
     "decl	%%ecx\n\t"	/* NOTE! This also sets Z if searchstring='' */
     "movl	%%ecx,%%edx\n"
     "1:\n\t"
     "movl	%5,%%edi\n\t"
     "movl	%%esi,%%eax\n\t"
     "movl	%%edx,%%ecx\n\t"
     "repe; cmpsb\n\t"
     "je	2f\n\t"		/* also works for empty string, see above */
     "xchgl	%%eax,%%esi\n\t"
     "incl	%%esi\n\t"
     "cmpb	$0,-1(%%eax)\n\t"
     "jne	1b\n\t"
     "xorl	%%eax,%%eax\n\t"
     "2:"
     : "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&d" (__d2), "=&D" (__d3)
     : "g" (__needle), "0" (0), "1" (0xffffffff), "2" (__haystack)
     : "cc");
  return __res;
}
#endif


#undef __STRING_INLINE

#endif	/* use string inlines && GNU CC */