glibc/sysdeps/x86/bits/string.h
Joseph Myers 498afc54df Combine __USE_BSD and __USE_SVID into __USE_MISC.
This patch cleans up following the obsoletion of _BSD_SOURCE and
_SVID_SOURCE by combining __USE_BSD and __USE_SVID into __USE_MISC.

The only non-mechanical part of this patch is the changes to
features.h; everything else is simple substitution of __USE_MISC for
the old macros.  Thus, this patch leaves obviously redundant
conditionals such as "defined __USE_MISC || defined __USE_MISC", and
does not update #endif comments where they referred to BSD or SVID in
words instead of the literal macro name.  This is intended to
facilitate patch review by separating the less mechanical changes from
these purely mechanical changes into a separate patch.  (I do intend
to integrate all the changes from
<https://sourceware.org/ml/libc-alpha/2013-12/msg00226.html>, which I
believe includes all the trailing comment updates, in subsequent
patches.)

Tested x86_64.

	* include/features.h (__USE_BSD): Remove macro definitions.
	(__USE_SVID): Likewise.
	(_BSD_SOURCE): Likewise.
	(_SVID_SOURCE): Likewise.
	[!defined _BSD_SOURCE && !defined _SVID_SOURCE]: Remove condition
	from definition of _DEFAULT_SOURCE.
	[_BSD_SOURCE || _SVID_SOURCE]: Change condition to
	[_DEFAULT_SOURCE].
	* bits/fcntl.h [__USE_BSD]: Change condition to [__USE_MISC].
	* bits/mman.h [__USE_BSD]: Likewise.
	* bits/termios.h [__USE_BSD]: Likewise.
	* bits/waitstatus.h [__USE_BSD]: Likewise.
	* ctype/ctype.h [__USE_SVID]: Likewise.
	* dirent/dirent.h [__USE_BSD]: Likewise.
	* grp/grp.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* inet/netinet/igmp.h [__USE_BSD]: Likewise.
	* io/fcntl.h [__USE_BSD]: Likewise.
	* io/ftw.h [__USE_BSD]: Likewise.
	* io/sys/stat.h [__USE_BSD]: Likewise.
	* libio/bits/stdio-ldbl.h [__USE_BSD]: Likewise.
	* libio/bits/stdio2.h [__USE_BSD]: Likewise.
	* libio/stdio.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* math/math.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* misc/bits/syslog-ldbl.h [__USE_BSD]: Likewise.
	* misc/bits/syslog.h [__USE_BSD]: Likewise.
	* misc/search.h [__USE_SVID]: Likewise.
	* misc/sys/mman.h [__USE_BSD]: Likewise.
	* misc/sys/syslog.h [__USE_BSD]: Likewise.
	* misc/sys/uio.h [__USE_BSD]: Likewise.
	* posix/bits/unistd.h [__USE_BSD]: Likewise.
	* posix/glob.h [__USE_BSD]: Likewise.
	* posix/regex.h [__USE_BSD]: Likewise.
	* posix/sys/types.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/sys/utsname.h [__USE_SVID]: Likewise.
	* posix/sys/wait.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/unistd.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* pwd/pwd.h [__USE_SVID]: Likewise.
	* resolv/netdb.h [__USE_BSD]: Likewise.
	* setjmp/setjmp.h [__USE_BSD]: Likewise.
	* signal/signal.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* socket/sys/socket.h [__USE_BSD]: Likewise.
	* stdlib/fmtmsg.h [__USE_SVID]: Likewise.
	* stdlib/stdlib.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string2.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string3.h [__USE_BSD]: Likewise.
	* string/endian.h [__USE_BSD]: Likewise.
	* string/string.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* string/strings.h [__USE_BSD]: Likewise.
	* sysdeps/generic/netinet/ip.h [__USE_BSD]: Likewise.
	* sysdeps/gnu/netinet/ip_icmp.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/fcntl.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/stat.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/bits/sys_errlist.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/termios.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_ether.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_fddi.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_tr.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/x86/bits/string.h [__USE_BSD]: Likewise.
	* sysvipc/sys/ipc.h [__USE_SVID]: Likewise.
	* termios/termios.h [__USE_BSD]: Likewise.
	* time/sys/time.h [__USE_BSD]: Likewise.
	* time/time.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.

	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_BSD]: Change
	condition to [__USE_MISC].
2014-02-12 23:41:01 +00:00

1986 lines
56 KiB
C

/* Optimized, inlined string functions. i486/x86-64 version.
Copyright (C) 2001-2014 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_MISC || 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_MISC || 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_MISC || 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