diff options
Diffstat (limited to 'sysdeps/s390/bits/string.h')
| -rw-r--r-- | sysdeps/s390/bits/string.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/sysdeps/s390/bits/string.h b/sysdeps/s390/bits/string.h deleted file mode 100644 index 1e794f925d..0000000000 --- a/sysdeps/s390/bits/string.h +++ /dev/null @@ -1,252 +0,0 @@ -/* Optimized, inlined string functions. S/390 version. - Copyright (C) 2000-2017 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - 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 - -/* Use the unaligned string inline ABI. */ -#define _STRING_INLINE_unaligned 1 - -/* We only provide optimizations if the user selects them and if - GNU CC is used. */ -#if !defined __NO_STRING_INLINES && defined __USE_STRING_INLINES \ - && defined __GNUC__ && __GNUC__ >= 2 - -#ifndef __STRING_INLINE -# ifndef __extern_inline -# define __STRING_INLINE inline -# else -# define __STRING_INLINE __extern_inline -# endif -#endif - -#define _HAVE_STRING_ARCH_strlen 1 -#ifndef _FORCE_INLINES -#define strlen(str) __strlen_g ((str)) - -__STRING_INLINE size_t __strlen_g (const char *) __asm__ ("strlen"); - -__STRING_INLINE size_t -__strlen_g (const char *__str) -{ - char *__ptr, *__tmp; - - __ptr = (char *) 0; - __tmp = (char *) __str; - __asm__ __volatile__ (" la 0,0\n" - "0: srst %0,%1\n" - " jo 0b\n" - : "+&a" (__ptr), "+&a" (__tmp) : - : "cc", "memory", "0" ); - return (size_t) (__ptr - __str); -} -#endif - -/* Copy SRC to DEST. */ -#define _HAVE_STRING_ARCH_strcpy 1 -#ifndef _FORCE_INLINES -#define strcpy(dest, src) __strcpy_g ((dest), (src)) - -__STRING_INLINE char *__strcpy_g (char *, const char *) __asm__ ("strcpy"); - -__STRING_INLINE char * -__strcpy_g (char *__dest, const char *__src) -{ - char *tmp = __dest; - - __asm__ __volatile__ (" la 0,0\n" - "0: mvst %0,%1\n" - " jo 0b" - : "+&a" (__dest), "+&a" (__src) : - : "cc", "memory", "0" ); - return tmp; -} -#endif - -#define _HAVE_STRING_ARCH_strncpy 1 -#ifndef _FORCE_INLINES -#define strncpy(dest, src, n) __strncpy_g ((dest), (src), (n)) - -__STRING_INLINE char *__strncpy_g (char *, const char *, size_t) - __asm__ ("strncpy"); - -__STRING_INLINE char * -__strncpy_g (char *__dest, const char *__src, size_t __n) -{ - char *__ret = __dest; - char *__ptr; - size_t __diff; - - if (__n > 0) { - __diff = (size_t) (__dest - __src); - __ptr = (char *) __src; - __asm__ __volatile__ (" j 1f\n" - "0: la %0,1(%0)\n" - "1: icm 0,1,0(%0)\n" - " stc 0,0(%2,%0)\n" - " jz 3f\n" -#if defined(__s390x__) - " brctg %1,0b\n" -#else - " brct %1,0b\n" -#endif - " j 4f\n" - "2: la %0,1(%0)\n" - " stc 0,0(%2,%0)\n" -#if defined(__s390x__) - "3: brctg %1,2b\n" -#else - "3: brct %1,2b\n" -#endif - "4:" - : "+&a" (__ptr), "+&a" (__n) : "a" (__diff) - : "cc", "memory", "0" ); - } - return __ret; -} -#endif - -/* Append SRC onto DEST. */ -#define _HAVE_STRING_ARCH_strcat 1 -#ifndef _FORCE_INLINES -#define strcat(dest, src) __strcat_g ((dest), (src)) - -__STRING_INLINE char *__strcat_g (char *, const char *) __asm__ ("strcat"); - -__STRING_INLINE char * -__strcat_g (char *__dest, const char *__src) -{ - char *__ret = __dest; - char *__ptr, *__tmp; - - /* Move __ptr to the end of __dest. */ - __ptr = (char *) 0; - __tmp = __dest; - __asm__ __volatile__ (" la 0,0\n" - "0: srst %0,%1\n" - " jo 0b\n" - : "+&a" (__ptr), "+&a" (__tmp) : - : "cc", "0" ); - - /* Now do the copy. */ - __asm__ __volatile__ (" la 0,0\n" - "0: mvst %0,%1\n" - " jo 0b" - : "+&a" (__ptr), "+&a" (__src) : - : "cc", "memory", "0" ); - return __ret; -} -#endif - -/* Append no more than N characters from SRC onto DEST. */ -#define _HAVE_STRING_ARCH_strncat 1 -#ifndef _FORCE_INLINES -#define strncat(dest, src, n) __strncat_g ((dest), (src), (n)) - -__STRING_INLINE char *__strncat_g (char *, const char *, size_t) - __asm__ ("strncat"); - -__STRING_INLINE char * -__strncat_g (char *__dest, const char *__src, size_t __n) -{ - char *__ret = __dest; - char *__ptr, *__tmp; - size_t __diff; - - if (__n > 0) { - /* Move __ptr to the end of __dest. */ - __ptr = (char *) 0; - __tmp = __dest; - __asm__ __volatile__ (" la 0,0\n" - "0: srst %0,%1\n" - " jo 0b\n" - : "+&a" (__ptr), "+&a" (__tmp) : - : "cc", "memory", "0" ); - - __diff = (size_t) (__ptr - __src); - __tmp = (char *) __src; - __asm__ __volatile__ (" j 1f\n" - "0: la %0,1(%0)\n" - "1: icm 0,1,0(%0)\n" - " stc 0,0(%2,%0)\n" - " jz 2f\n" -#if defined(__s390x__) - " brctg %1,0b\n" -#else - " brct %1,0b\n" -#endif - " slr 0,0\n" - " stc 0,1(%2,%0)\n" - "2:" - : "+&a" (__tmp), "+&a" (__n) : "a" (__diff) - : "cc", "memory", "0" ); - - } - return __ret; -} -#endif - -/* Search N bytes of S for C. */ -#define _HAVE_STRING_ARCH_memchr 1 -#ifndef _FORCE_INLINES -__STRING_INLINE void * -memchr (const void *__str, int __c, size_t __n) -{ - char *__ptr, *__tmp; - - __tmp = (char *) __str; - __ptr = (char *) __tmp + __n; - __asm__ __volatile__ (" lhi 0,0xff\n" - " nr 0,%2\n" - "0: srst %0,%1\n" - " jo 0b\n" - " brc 13,1f\n" - " la %0,0\n" - "1:" - : "+&a" (__ptr), "+&a" (__tmp) : "d" (__c) - : "cc", "memory", "0" ); - return __ptr; -} -#endif - -/* Compare S1 and S2. */ -#define _HAVE_STRING_ARCH_strcmp 1 -#ifndef _FORCE_INLINES -__STRING_INLINE int -strcmp (const char *__s1, const char *__s2) -{ - char *__p1, *__p2; - int __ret; - - __p1 = (char *) __s1; - __p2 = (char *) __s2; - __asm__ __volatile__ (" slr 0,0\n" - "0: clst %1,%2\n" - " jo 0b\n" - " ipm %0\n" - " srl %0,28" - : "=d" (__ret), "+&a" (__p1), "+&a" (__p2) : - : "cc", "memory", "0" ); - __ret = (__ret == 0) ? 0 : (__ret == 1) ? -1 : 1; - return __ret; -} -#endif - -#endif /* Use string inlines && GNU CC. */ |