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/* Optimized, inlined string functions. i486/x86-64 version. Copyright (C) 2001-2012 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #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 /* Enable inline functions only for i486 or better when compiling for ia32. */ #if !defined __x86_64__ && (defined __i486__ || defined __pentium__ \ || defined __pentiumpro__ || defined __pentium4__ \ || defined __nocona__ || defined __atom__ \ || defined __core2__ || defined __corei7__ \ || defined __k6__ || defined __geode__ \ || defined __k8__ || defined __athlon__ \ || defined __amdfam10__) /* 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 # ifndef __STRING_INLINE # ifndef __extern_inline # define __STRING_INLINE inline # else # define __STRING_INLINE __extern_inline # endif # endif /* The macros are used in some of the optimized implementations below. */ # define __STRING_SMALL_GET16(src, idx) \ ((((const unsigned char *) (src))[idx + 1] << 8) \ | ((const unsigned char *) (src))[idx]) # define __STRING_SMALL_GET32(src, idx) \ (((((const unsigned char *) (src))[idx + 3] << 8 \ | ((const unsigned char *) (src))[idx + 2]) << 8 \ | ((const unsigned char *) (src))[idx + 1]) << 8 \ | ((const unsigned char *) (src))[idx]) /* 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_g ((dest), (src), (n)))) # define __memcpy_c(dest, src, n) \ ((n) == 0 \ ? (dest) \ : (((n) % 4 == 0) \ ? __memcpy_by4 (dest, src, n) \ : (((n) % 2 == 0) \ ? __memcpy_by2 (dest, src, n) \ : __memcpy_g (dest, src, n)))) __STRING_INLINE void *__memcpy_by4 (void *__dest, const void *__src, size_t __n); __STRING_INLINE void * __memcpy_by4 (void *__dest, const void *__src, size_t __n) { register unsigned long int __d0, __d1; register void *__tmp = __dest; __asm__ __volatile__ ("1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b" : "=&r" (__d0), "=&r" (__tmp), "=&r" (__src), "=&r" (__d1) : "1" (__tmp), "2" (__src), "3" (__n / 4) : "memory", "cc"); return __dest; } __STRING_INLINE void *__memcpy_by2 (void *__dest, const void *__src, size_t __n); __STRING_INLINE void * __memcpy_by2 (void *__dest, const void *__src, size_t __n) { register unsigned long int __d0, __d1; register void *__tmp = __dest; __asm__ __volatile__ ("shrl $1,%3\n\t" "jz 2f\n" /* only a word */ "1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b\n" "2:\n\t" "movw (%2),%w0\n\t" "movw %w0,(%1)" : "=&q" (__d0), "=&r" (__tmp), "=&r" (__src), "=&r" (__d1) : "1" (__tmp), "2" (__src), "3" (__n / 2) : "memory", "cc"); return __dest; } __STRING_INLINE void *__memcpy_g (void *__dest, const void *__src, size_t __n); __STRING_INLINE void * __memcpy_g (void *__dest, const void *__src, size_t __n) { register unsigned long int __d0, __d1, __d2; register void *__tmp = __dest; __asm__ __volatile__ ("cld\n\t" "shrl $1,%%ecx\n\t" "jnc 1f\n\t" "movsb\n" "1:\n\t" "shrl $1,%%ecx\n\t" "jnc 2f\n\t" "movsw\n" "2:\n\t" "rep; movsl" : "=&c" (__d0), "=&D" (__d1), "=&S" (__d2), "=m" ( *(struct { __extension__ char __x[__n]; } *)__dest) : "0" (__n), "1" (__tmp), "2" (__src), "m" ( *(struct { __extension__ char __x[__n]; } *)__src) : "cc"); return __dest; } # define _HAVE_STRING_ARCH_memmove 1 # ifndef _FORCE_INLINES /* Copy N bytes of SRC to DEST, guaranteeing correct behavior for overlapping strings. */ # define memmove(dest, src, n) __memmove_g (dest, src, n) __STRING_INLINE void *__memmove_g (void *, const void *, size_t) __asm__ ("memmove"); __STRING_INLINE void * __memmove_g (void *__dest, const void *__src, size_t __n) { register unsigned long int __d0, __d1, __d2; register void *__tmp = __dest; if (__dest < __src) __asm__ __volatile__ ("cld\n\t" "rep; movsb" : "=&c" (__d0), "=&S" (__d1), "=&D" (__d2), "=m" ( *(struct { __extension__ char __x[__n]; } *)__dest) : "0" (__n), "1" (__src), "2" (__tmp), "m" ( *(struct { __extension__ char __x[__n]; } *)__src)); else __asm__ __volatile__ ("std\n\t" "rep; movsb\n\t" "cld" : "=&c" (__d0), "=&S" (__d1), "=&D" (__d2), "=m" ( *(struct { __extension__ char __x[__n]; } *)__dest) : "0" (__n), "1" (__n - 1 + (const char *) __src), "2" (__n - 1 + (char *) __tmp), "m" ( *(struct { __extension__ char __x[__n]; } *)__src)); return __dest; } # endif /* Compare N bytes of S1 and S2. */ # define _HAVE_STRING_ARCH_memcmp 1 # ifndef _FORCE_INLINES # ifndef __PIC__ /* gcc has problems to spill registers when using PIC. */ __STRING_INLINE int memcmp (const void *__s1, const void *__s2, size_t __n) { register unsigned long int __d0, __d1, __d2; register int __res; __asm__ __volatile__ ("cld\n\t" "testl %3,%3\n\t" "repe; cmpsb\n\t" "je 1f\n\t" "sbbl %0,%0\n\t" "orl $1,%0\n" "1:" : "=&a" (__res), "=&S" (__d0), "=&D" (__d1), "=&c" (__d2) : "0" (0), "1" (__s1), "2" (__s2), "3" (__n), "m" ( *(struct { __extension__ char __x[__n]; } *)__s1), "m" ( *(struct { __extension__ char __x[__n]; } *)__s2) : "cc"); return __res; } # endif # endif /* Set N bytes of S to C. */ # define _HAVE_STRING_ARCH_memset 1 # define _USE_STRING_ARCH_memset 1 # define memset(s, c, n) \ (__extension__ (__builtin_constant_p (n) && (n) <= 16 \ ? ((n) == 1 \ ? __memset_c1 ((s), (c)) \ : __memset_gc ((s), (c), (n))) \ : (__builtin_constant_p (c) \ ? (__builtin_constant_p (n) \ ? __memset_ccn ((s), (c), (n)) \ : memset ((s), (c), (n))) \ : (__builtin_constant_p (n) \ ? __memset_gcn ((s), (c), (n)) \ : memset ((s), (c), (n)))))) # define __memset_c1(s, c) ({ void *__s = (s); \ *((unsigned char *) __s) = (unsigned char) (c); \ __s; }) # define __memset_gc(s, c, n) \ ({ void *__s = (s); \ union { \ unsigned int __ui; \ unsigned short int __usi; \ unsigned char __uc; \ } *__u = __s; \ unsigned int __c = ((unsigned int) ((unsigned char) (c))) * 0x01010101; \ \ /* We apply a trick here. `gcc' would implement the following \ assignments using immediate operands. But this uses to much \ memory (7, instead of 4 bytes). So we force the value in a \ registers. */ \ if ((n) == 3 || (n) >= 5) \ __asm__ __volatile__ ("" : "=r" (__c) : "0" (__c)); \ \ /* This `switch' statement will be removed at compile-time. */ \ switch (n) \ { \ case 15: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 11: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 7: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 3: \ __u->__usi = (unsigned short int) __c; \ __u = __extension__ ((void *) __u + 2); \ __u->__uc = (unsigned char) __c; \ break; \ \ case 14: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 10: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 6: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 2: \ __u->__usi = (unsigned short int) __c; \ break; \ \ case 13: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 9: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 5: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 1: \ __u->__uc = (unsigned char) __c; \ break; \ \ case 16: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 12: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 8: \ __u->__ui = __c; \ __u = __extension__ ((void *) __u + 4); \ case 4: \ __u->__ui = __c; \ case 0: \ break; \ } \ \ __s; }) # define __memset_ccn(s, c, n) \ (((n) % 4 == 0) \ ? __memset_ccn_by4 (s, ((unsigned int) ((unsigned char) (c))) * 0x01010101,\ n) \ : (((n) % 2 == 0) \ ? __memset_ccn_by2 (s, \ ((unsigned int) ((unsigned char) (c))) * 0x01010101,\ n) \ : memset (s, c, n))) __STRING_INLINE void *__memset_ccn_by4 (void *__s, unsigned int __c, size_t __n); __STRING_INLINE void * __memset_ccn_by4 (void *__s, unsigned int __c, size_t __n) { register void *__tmp = __s; register unsigned long int __d0; # ifdef __i686__ __asm__ __volatile__ ("cld\n\t" "rep; stosl" : "=&a" (__c), "=&D" (__tmp), "=&c" (__d0), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); # else __asm__ __volatile__ ("1:\n\t" "movl %0,(%1)\n\t" "addl $4,%1\n\t" "decl %2\n\t" "jnz 1b\n" : "=&r" (__c), "=&r" (__tmp), "=&r" (__d0), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); # endif return __s; } __STRING_INLINE void *__memset_ccn_by2 (void *__s, unsigned int __c, size_t __n); __STRING_INLINE void * __memset_ccn_by2 (void *__s, unsigned int __c, size_t __n) { register unsigned long int __d0, __d1; register void *__tmp = __s; # ifdef __i686__ __asm__ __volatile__ ("cld\n\t" "rep; stosl\n" "stosw" : "=&a" (__d0), "=&D" (__tmp), "=&c" (__d1), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); # else __asm__ __volatile__ ("1:\tmovl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %2\n\t" "jnz 1b\n" "movw %w0,(%1)" : "=&q" (__d0), "=&r" (__tmp), "=&r" (__d1), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); #endif return __s; } # define __memset_gcn(s, c, n) \ (((n) % 4 == 0) \ ? __memset_gcn_by4 (s, c, n) \ : (((n) % 2 == 0) \ ? __memset_gcn_by2 (s, c, n) \ : memset (s, c, n))) __STRING_INLINE void *__memset_gcn_by4 (void *__s, int __c, size_t __n); __STRING_INLINE void * __memset_gcn_by4 (void *__s, int __c, size_t __n) { register void *__tmp = __s; register unsigned long int __d0; __asm__ __volatile__ ("movb %b0,%h0\n" "pushw %w0\n\t" "shll $16,%0\n\t" "popw %w0\n" "1:\n\t" "movl %0,(%1)\n\t" "addl $4,%1\n\t" "decl %2\n\t" "jnz 1b\n" : "=&q" (__c), "=&r" (__tmp), "=&r" (__d0), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); return __s; } __STRING_INLINE void *__memset_gcn_by2 (void *__s, int __c, size_t __n); __STRING_INLINE void * __memset_gcn_by2 (void *__s, int __c, size_t __n) { register unsigned long int __d0, __d1; register void *__tmp = __s; __asm__ __volatile__ ("movb %b0,%h0\n\t" "pushw %w0\n\t" "shll $16,%0\n\t" "popw %w0\n" "1:\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %2\n\t" "jnz 1b\n" "movw %w0,(%1)" : "=&q" (__d0), "=&r" (__tmp), "=&r" (__d1), "=m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "0" ((unsigned int) __c), "1" (__tmp), "2" (__n / 4) : "cc"); return __s; } /* Search N bytes of S for C. */ # define _HAVE_STRING_ARCH_memchr 1 # ifndef _FORCE_INLINES __STRING_INLINE void * memchr (const void *__s, int __c, size_t __n) { register unsigned long int __d0; # ifdef __i686__ register unsigned long int __d1; # endif register unsigned char *__res; if (__n == 0) return NULL; # ifdef __i686__ __asm__ __volatile__ ("cld\n\t" "repne; scasb\n\t" "cmovne %2,%0" : "=D" (__res), "=&c" (__d0), "=&r" (__d1) : "a" (__c), "0" (__s), "1" (__n), "2" (1), "m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "cc"); # else __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), "m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "cc"); # endif return __res - 1; } # endif # define _HAVE_STRING_ARCH_memrchr 1 # ifndef _FORCE_INLINES __STRING_INLINE void *__memrchr (const void *__s, int __c, size_t __n); __STRING_INLINE void * __memrchr (const void *__s, int __c, size_t __n) { register unsigned long int __d0; # ifdef __i686__ register unsigned long int __d1; # endif register void *__res; if (__n == 0) return NULL; # ifdef __i686__ __asm__ __volatile__ ("std\n\t" "repne; scasb\n\t" "cmovne %2,%0\n\t" "cld\n\t" "incl %0" : "=D" (__res), "=&c" (__d0), "=&r" (__d1) : "a" (__c), "0" (__s + __n - 1), "1" (__n), "2" (-1), "m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "cc"); # else __asm__ __volatile__ ("std\n\t" "repne; scasb\n\t" "je 1f\n\t" "orl $-1,%0\n" "1:\tcld\n\t" "incl %0" : "=D" (__res), "=&c" (__d0) : "a" (__c), "0" (__s + __n - 1), "1" (__n), "m" ( *(struct { __extension__ char __x[__n]; } *)__s) : "cc"); # endif return __res; } # ifdef __USE_GNU # define memrchr(s, c, n) __memrchr ((s), (c), (n)) # endif # endif /* Return pointer to C in S. */ # define _HAVE_STRING_ARCH_rawmemchr 1 __STRING_INLINE void *__rawmemchr (const void *__s, int __c); # ifndef _FORCE_INLINES __STRING_INLINE void * __rawmemchr (const void *__s, int __c) { register unsigned long int __d0; register unsigned char *__res; __asm__ __volatile__ ("cld\n\t" "repne; scasb\n\t" : "=D" (__res), "=&c" (__d0) : "a" (__c), "0" (__s), "1" (0xffffffff), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res - 1; } # ifdef __USE_GNU __STRING_INLINE void * rawmemchr (const void *__s, int __c) { return __rawmemchr (__s, __c); } # endif /* use GNU */ # endif /* Return the length of S. */ # define _HAVE_STRING_ARCH_strlen 1 # define strlen(str) \ (__extension__ (__builtin_constant_p (str) \ ? __builtin_strlen (str) \ : __strlen_g (str))) __STRING_INLINE size_t __strlen_g (const char *__str); __STRING_INLINE size_t __strlen_g (const char *__str) { register char __dummy; register const char *__tmp = __str; __asm__ __volatile__ ("1:\n\t" "movb (%0),%b1\n\t" "leal 1(%0),%0\n\t" "testb %b1,%b1\n\t" "jne 1b" : "=r" (__tmp), "=&q" (__dummy) : "0" (__str), "m" ( *(struct { char __x[0xfffffff]; } *)__str) : "cc" ); return __tmp - __str - 1; } /* Copy SRC to DEST. */ # define _HAVE_STRING_ARCH_strcpy 1 # define strcpy(dest, src) \ (__extension__ (__builtin_constant_p (src) \ ? (sizeof ((src)[0]) == 1 && strlen (src) + 1 <= 8 \ ? __strcpy_a_small ((dest), (src), strlen (src) + 1) \ : (char *) memcpy ((char *) (dest), \ (const char *) (src), \ strlen (src) + 1)) \ : __strcpy_g ((dest), (src)))) # define __strcpy_a_small(dest, src, srclen) \ (__extension__ ({ char *__dest = (dest); \ union { \ unsigned int __ui; \ unsigned short int __usi; \ unsigned char __uc; \ char __c; \ } *__u = (void *) __dest; \ switch (srclen) \ { \ case 1: \ __u->__uc = '\0'; \ break; \ case 2: \ __u->__usi = __STRING_SMALL_GET16 (src, 0); \ break; \ case 3: \ __u->__usi = __STRING_SMALL_GET16 (src, 0); \ __u = __extension__ ((void *) __u + 2); \ __u->__uc = '\0'; \ break; \ case 4: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ break; \ case 5: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__uc = '\0'; \ break; \ case 6: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__usi = __STRING_SMALL_GET16 (src, 4); \ break; \ case 7: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__usi = __STRING_SMALL_GET16 (src, 4); \ __u = __extension__ ((void *) __u + 2); \ __u->__uc = '\0'; \ break; \ case 8: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__ui = __STRING_SMALL_GET32 (src, 4); \ break; \ } \ (char *) __dest; })) __STRING_INLINE char *__strcpy_g (char *__dest, const char *__src); __STRING_INLINE char * __strcpy_g (char *__dest, const char *__src) { register char *__tmp = __dest; register char __dummy; __asm__ __volatile__ ( "1:\n\t" "movb (%0),%b2\n\t" "leal 1(%0),%0\n\t" "movb %b2,(%1)\n\t" "leal 1(%1),%1\n\t" "testb %b2,%b2\n\t" "jne 1b" : "=&r" (__src), "=&r" (__tmp), "=&q" (__dummy), "=m" ( *(struct { char __x[0xfffffff]; } *)__dest) : "0" (__src), "1" (__tmp), "m" ( *(struct { char __x[0xfffffff]; } *)__src) : "cc"); return __dest; } # ifdef __USE_GNU # define _HAVE_STRING_ARCH_stpcpy 1 /* Copy SRC to DEST. */ # define __stpcpy(dest, src) \ (__extension__ (__builtin_constant_p (src) \ ? (strlen (src) + 1 <= 8 \ ? __stpcpy_a_small ((dest), (src), strlen (src) + 1) \ : __stpcpy_c ((dest), (src), strlen (src) + 1)) \ : __stpcpy_g ((dest), (src)))) # define __stpcpy_c(dest, src, srclen) \ ((srclen) % 4 == 0 \ ? __mempcpy_by4 (dest, src, srclen) - 1 \ : ((srclen) % 2 == 0 \ ? __mempcpy_by2 (dest, src, srclen) - 1 \ : __mempcpy_byn (dest, src, srclen) - 1)) /* In glibc itself we use this symbol for namespace reasons. */ # define stpcpy(dest, src) __stpcpy ((dest), (src)) # define __stpcpy_a_small(dest, src, srclen) \ (__extension__ ({ union { \ unsigned int __ui; \ unsigned short int __usi; \ unsigned char __uc; \ char __c; \ } *__u = (void *) (dest); \ switch (srclen) \ { \ case 1: \ __u->__uc = '\0'; \ break; \ case 2: \ __u->__usi = __STRING_SMALL_GET16 (src, 0); \ __u = __extension__ ((void *) __u + 1); \ break; \ case 3: \ __u->__usi = __STRING_SMALL_GET16 (src, 0); \ __u = __extension__ ((void *) __u + 2); \ __u->__uc = '\0'; \ break; \ case 4: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 3); \ break; \ case 5: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__uc = '\0'; \ break; \ case 6: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__usi = __STRING_SMALL_GET16 (src, 4); \ __u = __extension__ ((void *) __u + 1); \ break; \ case 7: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__usi = __STRING_SMALL_GET16 (src, 4); \ __u = __extension__ ((void *) __u + 2); \ __u->__uc = '\0'; \ break; \ case 8: \ __u->__ui = __STRING_SMALL_GET32 (src, 0); \ __u = __extension__ ((void *) __u + 4); \ __u->__ui = __STRING_SMALL_GET32 (src, 4); \ __u = __extension__ ((void *) __u + 3); \ break; \ } \ (char *) __u; })) __STRING_INLINE char *__mempcpy_by4 (char *__dest, const char *__src, size_t __srclen); __STRING_INLINE char * __mempcpy_by4 (char *__dest, const char *__src, size_t __srclen) { register char *__tmp = __dest; register unsigned long int __d0, __d1; __asm__ __volatile__ ("1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b" : "=&r" (__d0), "=r" (__tmp), "=&r" (__src), "=&r" (__d1) : "1" (__tmp), "2" (__src), "3" (__srclen / 4) : "memory", "cc"); return __tmp; } __STRING_INLINE char *__mempcpy_by2 (char *__dest, const char *__src, size_t __srclen); __STRING_INLINE char * __mempcpy_by2 (char *__dest, const char *__src, size_t __srclen) { register char *__tmp = __dest; register unsigned long int __d0, __d1; __asm__ __volatile__ ("shrl $1,%3\n\t" "jz 2f\n" /* only a word */ "1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b\n" "2:\n\t" "movw (%2),%w0\n\t" "movw %w0,(%1)" : "=&q" (__d0), "=r" (__tmp), "=&r" (__src), "=&r" (__d1), "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) : "1" (__tmp), "2" (__src), "3" (__srclen / 2), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); return __tmp + 2; } __STRING_INLINE char *__mempcpy_byn (char *__dest, const char *__src, size_t __srclen); __STRING_INLINE char * __mempcpy_byn (char *__dest, const char *__src, size_t __srclen) { register unsigned long __d0, __d1; register char *__tmp = __dest; __asm__ __volatile__ ("cld\n\t" "shrl $1,%%ecx\n\t" "jnc 1f\n\t" "movsb\n" "1:\n\t" "shrl $1,%%ecx\n\t" "jnc 2f\n\t" "movsw\n" "2:\n\t" "rep; movsl" : "=D" (__tmp), "=&c" (__d0), "=&S" (__d1), "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) : "0" (__tmp), "1" (__srclen), "2" (__src), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); return __tmp; } __STRING_INLINE char *__stpcpy_g (char *__dest, const char *__src); __STRING_INLINE char * __stpcpy_g (char *__dest, const char *__src) { register char *__tmp = __dest; register char __dummy; __asm__ __volatile__ ( "1:\n\t" "movb (%0),%b2\n\t" "leal 1(%0),%0\n\t" "movb %b2,(%1)\n\t" "leal 1(%1),%1\n\t" "testb %b2,%b2\n\t" "jne 1b" : "=&r" (__src), "=r" (__tmp), "=&q" (__dummy), "=m" ( *(struct { char __x[0xfffffff]; } *)__dest) : "0" (__src), "1" (__tmp), "m" ( *(struct { char __x[0xfffffff]; } *)__src) : "cc"); return __tmp - 1; } # endif /* Copy no more than N characters of SRC to DEST. */ # define _HAVE_STRING_ARCH_strncpy 1 # define strncpy(dest, src, n) \ (__extension__ (__builtin_constant_p (src) \ ? ((strlen (src) + 1 >= ((size_t) (n)) \ ? (char *) memcpy ((char *) (dest), \ (const char *) (src), n) \ : __strncpy_cg ((dest), (src), strlen (src) + 1, n))) \ : __strncpy_gg ((dest), (src), n))) # define __strncpy_cg(dest, src, srclen, n) \ (((srclen) % 4 == 0) \ ? __strncpy_by4 (dest, src, srclen, n) \ : (((srclen) % 2 == 0) \ ? __strncpy_by2 (dest, src, srclen, n) \ : __strncpy_byn (dest, src, srclen, n))) __STRING_INLINE char *__strncpy_by4 (char *__dest, const char __src[], size_t __srclen, size_t __n); __STRING_INLINE char * __strncpy_by4 (char *__dest, const char __src[], size_t __srclen, size_t __n) { register char *__tmp = __dest; register int __dummy1, __dummy2; __asm__ __volatile__ ("1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b" : "=&r" (__dummy1), "=r" (__tmp), "=&r" (__src), "=&r" (__dummy2), "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) : "1" (__tmp), "2" (__src), "3" (__srclen / 4), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); (void) memset (__tmp, '\0', __n - __srclen); return __dest; } __STRING_INLINE char *__strncpy_by2 (char *__dest, const char __src[], size_t __srclen, size_t __n); __STRING_INLINE char * __strncpy_by2 (char *__dest, const char __src[], size_t __srclen, size_t __n) { register char *__tmp = __dest; register int __dummy1, __dummy2; __asm__ __volatile__ ("shrl $1,%3\n\t" "jz 2f\n" /* only a word */ "1:\n\t" "movl (%2),%0\n\t" "leal 4(%2),%2\n\t" "movl %0,(%1)\n\t" "leal 4(%1),%1\n\t" "decl %3\n\t" "jnz 1b\n" "2:\n\t" "movw (%2),%w0\n\t" "movw %w0,(%1)\n\t" : "=&q" (__dummy1), "=r" (__tmp), "=&r" (__src), "=&r" (__dummy2), "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) : "1" (__tmp), "2" (__src), "3" (__srclen / 2), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); (void) memset (__tmp + 2, '\0', __n - __srclen); return __dest; } __STRING_INLINE char *__strncpy_byn (char *__dest, const char __src[], size_t __srclen, size_t __n); __STRING_INLINE char * __strncpy_byn (char *__dest, const char __src[], size_t __srclen, size_t __n) { register unsigned long int __d0, __d1; register char *__tmp = __dest; __asm__ __volatile__ ("cld\n\t" "shrl $1,%1\n\t" "jnc 1f\n\t" "movsb\n" "1:\n\t" "shrl $1,%1\n\t" "jnc 2f\n\t" "movsw\n" "2:\n\t" "rep; movsl" : "=D" (__tmp), "=&c" (__d0), "=&S" (__d1), "=m" ( *(struct { __extension__ char __x[__srclen]; } *)__dest) : "1" (__srclen), "0" (__tmp),"2" (__src), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); (void) memset (__tmp, '\0', __n - __srclen); return __dest; } __STRING_INLINE char *__strncpy_gg (char *__dest, const char *__src, size_t __n); __STRING_INLINE char * __strncpy_gg (char *__dest, const char *__src, size_t __n) { register char *__tmp = __dest; register char __dummy; if (__n > 0) __asm__ __volatile__ ("1:\n\t" "movb (%0),%2\n\t" "incl %0\n\t" "movb %2,(%1)\n\t" "incl %1\n\t" "decl %3\n\t" "je 3f\n\t" "testb %2,%2\n\t" "jne 1b\n\t" "2:\n\t" "movb %2,(%1)\n\t" "incl %1\n\t" "decl %3\n\t" "jne 2b\n\t" "3:" : "=&r" (__src), "=&r" (__tmp), "=&q" (__dummy), "=&r" (__n) : "0" (__src), "1" (__tmp), "3" (__n) : "memory", "cc"); return __dest; } /* Append SRC onto DEST. */ # define _HAVE_STRING_ARCH_strcat 1 # define strcat(dest, src) \ (__extension__ (__builtin_constant_p (src) \ ? __strcat_c ((dest), (src), strlen (src) + 1) \ : __strcat_g ((dest), (src)))) __STRING_INLINE char *__strcat_c (char *__dest, const char __src[], size_t __srclen); __STRING_INLINE char * __strcat_c (char *__dest, const char __src[], size_t __srclen) { # ifdef __i686__ register unsigned long int __d0; register char *__tmp; __asm__ __volatile__ ("repne; scasb" : "=D" (__tmp), "=&c" (__d0), "=m" ( *(struct { char __x[0xfffffff]; } *)__dest) : "0" (__dest), "1" (0xffffffff), "a" (0), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); --__tmp; # else register char *__tmp = __dest - 1; __asm__ __volatile__ ("1:\n\t" "incl %0\n\t" "cmpb $0,(%0)\n\t" "jne 1b\n" : "=r" (__tmp), "=m" ( *(struct { char __x[0xfffffff]; } *)__dest) : "0" (__tmp), "m" ( *(struct { __extension__ char __x[__srclen]; } *)__src) : "cc"); # endif (void) memcpy (__tmp, __src, __srclen); return __dest; } __STRING_INLINE char *__strcat_g (char *__dest, const char *__src); __STRING_INLINE char * __strcat_g (char *__dest, const char *__src) { register char *__tmp = __dest - 1; register char __dummy; __asm__ __volatile__ ("1:\n\t" "incl %1\n\t" "cmpb $0,(%1)\n\t" "jne 1b\n" "2:\n\t" "movb (%2),%b0\n\t" "incl %2\n\t" "movb %b0,(%1)\n\t" "incl %1\n\t" "testb %b0,%b0\n\t" "jne 2b\n" : "=&q" (__dummy), "=&r" (__tmp), "=&r" (__src), "=m" ( *(struct { char __x[0xfffffff]; } *)__dest) : "1" (__tmp), "2" (__src), "m" ( *(struct { char __x[0xfffffff]; } *)__src) : "memory", "cc"); return __dest; } /* Append no more than N characters from SRC onto DEST. */ # define _HAVE_STRING_ARCH_strncat 1 # define strncat(dest, src, n) \ (__extension__ ({ char *__dest = (dest); \ __builtin_constant_p (src) && __builtin_constant_p (n) \ ? (strlen (src) < ((size_t) (n)) \ ? strcat (__dest, (src)) \ : (*(char *)__mempcpy (strchr (__dest, '\0'), \ (const char *) (src), \ (n)) = 0, __dest)) \ : __strncat_g (__dest, (src), (n)); })) __STRING_INLINE char *__strncat_g (char *__dest, const char __src[], size_t __n); __STRING_INLINE char * __strncat_g (char *__dest, const char __src[], size_t __n) { register char *__tmp = __dest; register char __dummy; # ifdef __i686__ __asm__ __volatile__ ("repne; scasb\n" "movl %4, %3\n\t" "decl %1\n\t" "1:\n\t" "subl $1,%3\n\t" "jc 2f\n\t" "movb (%2),%b0\n\t" "movsb\n\t" "testb %b0,%b0\n\t" "jne 1b\n\t" "decl %1\n" "2:\n\t" "movb $0,(%1)" : "=&a" (__dummy), "=&D" (__tmp), "=&S" (__src), "=&c" (__n) : "g" (__n), "0" (0), "1" (__tmp), "2" (__src), "3" (0xffffffff) : "memory", "cc"); # else --__tmp; __asm__ __volatile__ ("1:\n\t" "cmpb $0,1(%1)\n\t" "leal 1(%1),%1\n\t" "jne 1b\n" "2:\n\t" "subl $1,%3\n\t" "jc 3f\n\t" "movb (%2),%b0\n\t" "leal 1(%2),%2\n\t" "movb %b0,(%1)\n\t" "leal 1(%1),%1\n\t" "testb %b0,%b0\n\t" "jne 2b\n\t" "decl %1\n" "3:\n\t" "movb $0,(%1)" : "=&q" (__dummy), "=&r" (__tmp), "=&r" (__src), "=&r" (__n) : "1" (__tmp), "2" (__src), "3" (__n) : "memory", "cc"); #endif return __dest; } /* Compare S1 and S2. */ # define _HAVE_STRING_ARCH_strcmp 1 # define strcmp(s1, s2) \ (__extension__ (__builtin_constant_p (s1) && __builtin_constant_p (s2) \ && (sizeof ((s1)[0]) != 1 || strlen (s1) >= 4) \ && (sizeof ((s2)[0]) != 1 || strlen (s2) >= 4) \ ? memcmp ((const char *) (s1), (const char *) (s2), \ (strlen (s1) < strlen (s2) \ ? strlen (s1) : strlen (s2)) + 1) \ : (__builtin_constant_p (s1) && sizeof ((s1)[0]) == 1 \ && sizeof ((s2)[0]) == 1 && strlen (s1) < 4 \ ? (__builtin_constant_p (s2) && sizeof ((s2)[0]) == 1 \ ? __strcmp_cc ((const unsigned char *) (s1), \ (const unsigned char *) (s2), \ strlen (s1)) \ : __strcmp_cg ((const unsigned char *) (s1), \ (const unsigned char *) (s2), \ strlen (s1))) \ : (__builtin_constant_p (s2) && sizeof ((s1)[0]) == 1 \ && sizeof ((s2)[0]) == 1 && strlen (s2) < 4 \ ? (__builtin_constant_p (s1) \ ? __strcmp_cc ((const unsigned char *) (s1), \ (const unsigned char *) (s2), \ strlen (s2)) \ : __strcmp_gc ((const unsigned char *) (s1), \ (const unsigned char *) (s2), \ strlen (s2))) \ : __strcmp_gg ((s1), (s2)))))) # define __strcmp_cc(s1, s2, l) \ (__extension__ ({ register int __result = (s1)[0] - (s2)[0]; \ if (l > 0 && __result == 0) \ { \ __result = (s1)[1] - (s2)[1]; \ if (l > 1 && __result == 0) \ { \ __result = (s1)[2] - (s2)[2]; \ if (l > 2 && __result == 0) \ __result = (s1)[3] - (s2)[3]; \ } \ } \ __result; })) # define __strcmp_cg(s1, s2, l1) \ (__extension__ ({ const unsigned char *__s2 = (s2); \ register int __result = (s1)[0] - __s2[0]; \ if (l1 > 0 && __result == 0) \ { \ __result = (s1)[1] - __s2[1]; \ if (l1 > 1 && __result == 0) \ { \ __result = (s1)[2] - __s2[2]; \ if (l1 > 2 && __result == 0) \ __result = (s1)[3] - __s2[3]; \ } \ } \ __result; })) # define __strcmp_gc(s1, s2, l2) \ (__extension__ ({ const unsigned char *__s1 = (s1); \ register int __result = __s1[0] - (s2)[0]; \ if (l2 > 0 && __result == 0) \ { \ __result = __s1[1] - (s2)[1]; \ if (l2 > 1 && __result == 0) \ { \ __result = __s1[2] - (s2)[2]; \ if (l2 > 2 && __result == 0) \ __result = __s1[3] - (s2)[3]; \ } \ } \ __result; })) __STRING_INLINE int __strcmp_gg (const char *__s1, const char *__s2); __STRING_INLINE int __strcmp_gg (const char *__s1, const char *__s2) { register int __res; __asm__ __volatile__ ("1:\n\t" "movb (%1),%b0\n\t" "leal 1(%1),%1\n\t" "cmpb %b0,(%2)\n\t" "jne 2f\n\t" "leal 1(%2),%2\n\t" "testb %b0,%b0\n\t" "jne 1b\n\t" "xorl %0,%0\n\t" "jmp 3f\n" "2:\n\t" "movl $1,%0\n\t" "jb 3f\n\t" "negl %0\n" "3:" : "=q" (__res), "=&r" (__s1), "=&r" (__s2) : "1" (__s1), "2" (__s2), "m" ( *(struct { char __x[0xfffffff]; } *)__s1), "m" ( *(struct { char __x[0xfffffff]; } *)__s2) : "cc"); return __res; } /* Compare N characters of S1 and S2. */ # define _HAVE_STRING_ARCH_strncmp 1 # define strncmp(s1, s2, n) \ (__extension__ (__builtin_constant_p (s1) && strlen (s1) < ((size_t) (n)) \ ? strcmp ((s1), (s2)) \ : (__builtin_constant_p (s2) && strlen (s2) < ((size_t) (n))\ ? strcmp ((s1), (s2)) \ : __strncmp_g ((s1), (s2), (n))))) __STRING_INLINE int __strncmp_g (const char *__s1, const char *__s2, size_t __n); __STRING_INLINE int __strncmp_g (const char *__s1, const char *__s2, size_t __n) { register int __res; __asm__ __volatile__ ("1:\n\t" "subl $1,%3\n\t" "jc 2f\n\t" "movb (%1),%b0\n\t" "incl %1\n\t" "cmpb %b0,(%2)\n\t" "jne 3f\n\t" "incl %2\n\t" "testb %b0,%b0\n\t" "jne 1b\n" "2:\n\t" "xorl %0,%0\n\t" "jmp 4f\n" "3:\n\t" "movl $1,%0\n\t" "jb 4f\n\t" "negl %0\n" "4:" : "=q" (__res), "=&r" (__s1), "=&r" (__s2), "=&r" (__n) : "1" (__s1), "2" (__s2), "3" (__n), "m" ( *(struct { __extension__ char __x[__n]; } *)__s1), "m" ( *(struct { __extension__ char __x[__n]; } *)__s2) : "cc"); return __res; } /* Find the first occurrence of C in S. */ # define _HAVE_STRING_ARCH_strchr 1 # define _USE_STRING_ARCH_strchr 1 # define strchr(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? ((c) == '\0' \ ? (char *) __rawmemchr ((s), (c)) \ : __strchr_c ((s), ((c) & 0xff) << 8)) \ : __strchr_g ((s), (c)))) __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__ ("1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" "leal 1(%0),%0\n\t" "testb %%al,%%al\n\t" "jne 1b\n\t" "xorl %0,%0\n" "2:" : "=r" (__res), "=&a" (__d0) : "0" (__s), "1" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } __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__ ("movb %%al,%%ah\n" "1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" "leal 1(%0),%0\n\t" "testb %%al,%%al\n\t" "jne 1b\n\t" "xorl %0,%0\n" "2:" : "=r" (__res), "=&a" (__d0) : "0" (__s), "1" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } /* 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_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__ ("1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" "leal 1(%0),%0\n\t" "testb %%al,%%al\n\t" "jne 1b\n\t" "decl %0\n" "2:" : "=r" (__res), "=&a" (__d0) : "0" (__s), "1" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } __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__ ("movb %%al,%%ah\n" "1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" "leal 1(%0),%0\n\t" "testb %%al,%%al\n\t" "jne 1b\n\t" "decl %0\n" "2:" : "=r" (__res), "=&a" (__d0) : "0" (__s), "1" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } # ifdef __USE_GNU # define strchrnul(s, c) __strchrnul ((s), (c)) # endif # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* Find the first occurrence of C in S. This is the BSD name. */ # define _HAVE_STRING_ARCH_index 1 # define index(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? __strchr_c ((s), ((c) & 0xff) << 8) \ : __strchr_g ((s), (c)))) # endif /* Find the last occurrence of C in S. */ # define _HAVE_STRING_ARCH_strrchr 1 # define strrchr(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? __strrchr_c ((s), ((c) & 0xff) << 8) \ : __strrchr_g ((s), (c)))) # ifdef __i686__ __STRING_INLINE char *__strrchr_c (const char *__s, int __c); __STRING_INLINE char * __strrchr_c (const char *__s, int __c) { register unsigned long int __d0, __d1; register char *__res; __asm__ __volatile__ ("cld\n" "1:\n\t" "lodsb\n\t" "cmpb %h2,%b2\n\t" "cmove %1,%0\n\t" "testb %b2,%b2\n\t" "jne 1b" : "=d" (__res), "=&S" (__d0), "=&a" (__d1) : "0" (1), "1" (__s), "2" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res - 1; } __STRING_INLINE char *__strrchr_g (const char *__s, int __c); __STRING_INLINE char * __strrchr_g (const char *__s, int __c) { register unsigned long int __d0, __d1; register char *__res; __asm__ __volatile__ ("movb %b2,%h2\n" "cld\n\t" "1:\n\t" "lodsb\n\t" "cmpb %h2,%b2\n\t" "cmove %1,%0\n\t" "testb %b2,%b2\n\t" "jne 1b" : "=d" (__res), "=&S" (__d0), "=&a" (__d1) : "0" (1), "1" (__s), "2" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res - 1; } # else __STRING_INLINE char *__strrchr_c (const char *__s, int __c); __STRING_INLINE char * __strrchr_c (const char *__s, int __c) { register unsigned long int __d0, __d1; register char *__res; __asm__ __volatile__ ("cld\n" "1:\n\t" "lodsb\n\t" "cmpb %%ah,%%al\n\t" "jne 2f\n\t" "leal -1(%%esi),%0\n" "2:\n\t" "testb %%al,%%al\n\t" "jne 1b" : "=d" (__res), "=&S" (__d0), "=&a" (__d1) : "0" (0), "1" (__s), "2" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } __STRING_INLINE char *__strrchr_g (const char *__s, int __c); __STRING_INLINE char * __strrchr_g (const char *__s, int __c) { register unsigned long int __d0, __d1; register char *__res; __asm__ __volatile__ ("movb %%al,%%ah\n" "cld\n\t" "1:\n\t" "lodsb\n\t" "cmpb %%ah,%%al\n\t" "jne 2f\n\t" "leal -1(%%esi),%0\n" "2:\n\t" "testb %%al,%%al\n\t" "jne 1b" : "=r" (__res), "=&S" (__d0), "=&a" (__d1) : "0" (0), "1" (__s), "2" (__c), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return __res; } # endif # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* Find the last occurrence of C in S. This is the BSD name. */ # define _HAVE_STRING_ARCH_rindex 1 # define rindex(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? __strrchr_c ((s), ((c) & 0xff) << 8) \ : __strrchr_g ((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 # define strcspn(s, reject) \ (__extension__ (__builtin_constant_p (reject) && sizeof ((reject)[0]) == 1 \ ? ((reject)[0] == '\0' \ ? strlen (s) \ : ((reject)[1] == '\0' \ ? __strcspn_c1 ((s), (((reject)[0] << 8) & 0xff00)) \ : __strcspn_cg ((s), (reject), strlen (reject)))) \ : __strcspn_g ((s), (reject)))) __STRING_INLINE size_t __strcspn_c1 (const char *__s, int __reject); # ifndef _FORCE_INLINES __STRING_INLINE size_t __strcspn_c1 (const char *__s, int __reject) { register unsigned long int __d0; register char *__res; __asm__ __volatile__ ("1:\n\t" "movb (%0),%%al\n\t" "leal 1(%0),%0\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" "testb %%al,%%al\n\t" "jne 1b\n" "2:" : "=r" (__res), "=&a" (__d0) : "0" (__s), "1" (__reject), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return (__res - 1) - __s; } # endif __STRING_INLINE size_t __strcspn_cg (const char *__s, const char __reject[], size_t __reject_len); __STRING_INLINE size_t __strcspn_cg (const char *__s, const char __reject[], size_t __reject_len) { register unsigned long int __d0, __d1, __d2; register const char *__res; __asm__ __volatile__ ("cld\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %5,%%edi\n\t" "movl %6,%%ecx\n\t" "repne; scasb\n\t" "jne 1b\n" "2:" : "=S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2) : "0" (__s), "d" (__reject), "g" (__reject_len) : "memory", "cc"); return (__res - 1) - __s; } __STRING_INLINE size_t __strcspn_g (const char *__s, const char *__reject); # ifdef __PIC__ __STRING_INLINE size_t __strcspn_g (const char *__s, const char *__reject) { register unsigned long int __d0, __d1, __d2; register const char *__res; __asm__ __volatile__ ("pushl %%ebx\n\t" "movl %4,%%edi\n\t" "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%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) : "r" (__reject), "0" (__s), "1" (0), "2" (0xffffffff) : "memory", "cc"); return (__res - 1) - __s; } # else __STRING_INLINE size_t __strcspn_g (const char *__s, const char *__reject) { register unsigned long int __d0, __d1, __d2, __d3; register const char *__res; __asm__ __volatile__ ("cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %%ebx,%%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) : "0" (__s), "1" (0), "2" (0xffffffff), "3" (__reject), "b" (__reject) /* Clobber memory, otherwise GCC cannot handle this. */ : "memory", "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 # define strspn(s, accept) \ (__extension__ (__builtin_constant_p (accept) && sizeof ((accept)[0]) == 1 \ ? ((accept)[0] == '\0' \ ? ((void) (s), 0) \ : ((accept)[1] == '\0' \ ? __strspn_c1 ((s), (((accept)[0] << 8 ) & 0xff00)) \ : __strspn_cg ((s), (accept), strlen (accept)))) \ : __strspn_g ((s), (accept)))) # ifndef _FORCE_INLINES __STRING_INLINE size_t __strspn_c1 (const char *__s, int __accept); __STRING_INLINE size_t __strspn_c1 (const char *__s, int __accept) { register unsigned long int __d0; register char *__res; /* Please note that __accept never can be '\0'. */ __asm__ __volatile__ ("1:\n\t" "movb (%0),%b1\n\t" "leal 1(%0),%0\n\t" "cmpb %h1,%b1\n\t" "je 1b" : "=r" (__res), "=&q" (__d0) : "0" (__s), "1" (__accept), "m" ( *(struct { char __x[0xfffffff]; } *)__s) : "cc"); return (__res - 1) - __s; } # endif __STRING_INLINE size_t __strspn_cg (const char *__s, const char __accept[], size_t __accept_len); __STRING_INLINE size_t __strspn_cg (const char *__s, const char __accept[], size_t __accept_len) { register unsigned long int __d0, __d1, __d2; register const char *__res; __asm__ __volatile__ ("cld\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %5,%%edi\n\t" "movl %6,%%ecx\n\t" "repne; scasb\n\t" "je 1b\n" "2:" : "=S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2) : "0" (__s), "g" (__accept), "g" (__accept_len), /* Since we do not know how large the memory we access it, use a really large amount. */ "m" ( *(struct { char __x[0xfffffff]; } *)__s), "m" ( *(struct { __extension__ char __x[__accept_len]; } *)__accept) : "cc"); return (__res - 1) - __s; } __STRING_INLINE size_t __strspn_g (const char *__s, const char *__accept); # ifdef __PIC__ __STRING_INLINE size_t __strspn_g (const char *__s, const char *__accept) { register unsigned long int __d0, __d1, __d2; register const char *__res; __asm__ __volatile__ ("pushl %%ebx\n\t" "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%ecx),%%ebx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %%edx,%%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) : "d" (__accept), "0" (__s), "1" (0), "2" (0xffffffff), "3" (__accept) : "memory", "cc"); return (__res - 1) - __s; } # else __STRING_INLINE size_t __strspn_g (const char *__s, const char *__accept) { register unsigned long int __d0, __d1, __d2, __d3; register const char *__res; __asm__ __volatile__ ("cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %%ebx,%%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) : "0" (__s), "1" (0), "2" (0xffffffff), "3" (__accept), "b" (__accept) : "memory", "cc"); return (__res - 1) - __s; } # endif /* Find the first occurrence in S of any character in ACCEPT. */ # define _HAVE_STRING_ARCH_strpbrk 1 # define strpbrk(s, accept) \ (__extension__ (__builtin_constant_p (accept) && sizeof ((accept)[0]) == 1 \ ? ((accept)[0] == '\0' \ ? ((void) (s), (char *) 0) \ : ((accept)[1] == '\0' \ ? strchr ((s), (accept)[0]) \ : __strpbrk_cg ((s), (accept), strlen (accept)))) \ : __strpbrk_g ((s), (accept)))) __STRING_INLINE char *__strpbrk_cg (const char *__s, const char __accept[], size_t __accept_len); __STRING_INLINE char * __strpbrk_cg (const char *__s, const char __accept[], size_t __accept_len) { register unsigned long int __d0, __d1, __d2; register char *__res; __asm__ __volatile__ ("cld\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %5,%%edi\n\t" "movl %6,%%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) : "0" (__s), "d" (__accept), "g" (__accept_len) : "memory", "cc"); return __res; } __STRING_INLINE char *__strpbrk_g (const char *__s, const char *__accept); # ifdef __PIC__ __STRING_INLINE char * __strpbrk_g (const char *__s, const char *__accept) { register unsigned long int __d0, __d1, __d2; register char *__res; __asm__ __volatile__ ("pushl %%ebx\n\t" "movl %%edx,%%edi\n\t" "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%ecx),%%ebx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %%edx,%%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) : "d" (__accept), "0" (__s), "1" (0), "2" (0xffffffff) : "memory", "cc"); return __res; } # else __STRING_INLINE char * __strpbrk_g (const char *__s, const char *__accept) { register unsigned long int __d0, __d1, __d2, __d3; register char *__res; __asm__ __volatile__ ("movl %%ebx,%%edi\n\t" "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" "movl %%ebx,%%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) : "0" (__s), "1" (0), "2" (0xffffffff), "b" (__accept) : "memory", "cc"); return __res; } # endif /* Find the first occurrence of NEEDLE in HAYSTACK. */ # define _HAVE_STRING_ARCH_strstr 1 # define strstr(haystack, needle) \ (__extension__ (__builtin_constant_p (needle) && sizeof ((needle)[0]) == 1 \ ? ((needle)[0] == '\0' \ ? (haystack) \ : ((needle)[1] == '\0' \ ? strchr ((haystack), (needle)[0]) \ : __strstr_cg ((haystack), (needle), \ strlen (needle)))) \ : __strstr_g ((haystack), (needle)))) /* Please note that this function need not handle NEEDLEs with a length shorter than two. */ __STRING_INLINE char *__strstr_cg (const char *__haystack, const char __needle[], size_t __needle_len); __STRING_INLINE char * __strstr_cg (const char *__haystack, const char __needle[], size_t __needle_len) { register unsigned long int __d0, __d1, __d2; register char *__res; __asm__ __volatile__ ("cld\n" \ "1:\n\t" "movl %6,%%edi\n\t" "movl %5,%%eax\n\t" "movl %4,%%ecx\n\t" "repe; cmpsb\n\t" "je 2f\n\t" "cmpb $0,-1(%%esi)\n\t" "leal 1(%%eax),%5\n\t" "jne 1b\n\t" "xorl %%eax,%%eax\n" "2:" : "=&a" (__res), "=&S" (__d0), "=&D" (__d1), "=&c" (__d2) : "g" (__needle_len), "1" (__haystack), "d" (__needle) : "memory", "cc"); return __res; } __STRING_INLINE char *__strstr_g (const char *__haystack, const char *__needle); # ifdef __PIC__ __STRING_INLINE char * __strstr_g (const char *__haystack, const char *__needle) { register unsigned long int __d0, __d1, __d2; register char *__res; __asm__ __volatile__ ("cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "pushl %%ebx\n\t" "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */ "movl %%ecx,%%ebx\n" "1:\n\t" "movl %%edx,%%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 */ "cmpb $0,-1(%%esi)\n\t" "leal 1(%%eax),%%esi\n\t" "jne 1b\n\t" "xorl %%eax,%%eax\n" "2:\n\t" "popl %%ebx" : "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&D" (__d2) : "0" (0), "1" (0xffffffff), "2" (__haystack), "3" (__needle), "d" (__needle) : "memory", "cc"); return __res; } # else __STRING_INLINE char * __strstr_g (const char *__haystack, const char *__needle) { register unsigned long int __d0, __d1, __d2, __d3; register char *__res; __asm__ __volatile__ ("cld\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 %%ebx,%%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 */ "cmpb $0,-1(%%esi)\n\t" "leal 1(%%eax),%%esi\n\t" "jne 1b\n\t" "xorl %%eax,%%eax\n" "2:" : "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&D" (__d2), "=&d" (__d3) : "0" (0), "1" (0xffffffff), "2" (__haystack), "3" (__needle), "b" (__needle) : "memory", "cc"); return __res; } # endif /* Bit find functions. We define only the i686 version since for the other processors gcc generates good code. */ # if defined __USE_BSD || defined __USE_XOPEN_EXTENDED # ifdef __i686__ # define _HAVE_STRING_ARCH_ffs 1 # define ffs(word) (__builtin_constant_p (word) \ ? __builtin_ffs (word) \ : ({ int __cnt, __tmp; \ __asm__ __volatile__ \ ("bsfl %2,%0\n\t" \ "cmovel %1,%0" \ : "=&r" (__cnt), "=r" (__tmp) \ : "rm" (word), "1" (-1)); \ __cnt + 1; })) # ifndef ffsl # define ffsl(word) ffs(word) # endif # endif /* i686 */ # endif /* BSD || X/Open */ # ifndef _FORCE_INLINES # undef __STRING_INLINE # endif # endif /* use string inlines && GNU CC */ #endif

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