diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/alpha/atomicity.h | 102 | ||||
| -rw-r--r-- | sysdeps/generic/atomicity.h | 54 | ||||
| -rw-r--r-- | sysdeps/i386/i486/bits/string.h | 4 |
3 files changed, 2 insertions, 158 deletions
diff --git a/sysdeps/alpha/atomicity.h b/sysdeps/alpha/atomicity.h deleted file mode 100644 index 9388f2384a..0000000000 --- a/sysdeps/alpha/atomicity.h +++ /dev/null @@ -1,102 +0,0 @@ -/* Low-level functions for atomic operations. Alpha version. - Copyright (C) 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _ATOMICITY_H -#define _ATOMICITY_H 1 - -#include <inttypes.h> - - -static inline int -__attribute__ ((unused)) -exchange_and_add (volatile uint32_t *mem, int val) -{ - register int result, tmp; - - __asm__ __volatile__ ( - "/* Inline exchange & add */\n" - "1:\t" - "ldl_l %0,%3\n\t" - "addl %0,%4,%1\n\t" - "stl_c %1,%2\n\t" - "beq %1,2f\n" - ".subsection 1\n" - "2:\t" - "br 1b\n" - ".previous\n\t" - "mb\n\t" - "/* End exchange & add */" - : "=&r"(result), "=&r"(tmp), "=m"(*mem) - : "m" (*mem), "r"(val)); - - return result; -} - -static inline void -__attribute__ ((unused)) -atomic_add (volatile uint32_t *mem, int val) -{ - register int result; - - __asm__ __volatile__ ( - "/* Inline exchange & add */\n" - "1:\t" - "ldl_l %0,%2\n\t" - "addl %0,%3,%0\n\t" - "stl_c %0,%1\n\t" - "beq %0,2f\n\t" - ".subsection 1\n" - "2:\t" - "br 1b\n" - ".previous\n\t" - "mb\n\t" - "/* End exchange & add */" - : "=&r"(result), "=m"(*mem) - : "m" (*mem), "r"(val)); -} - -static inline long -__attribute__ ((unused)) -compare_and_swap (volatile long int *p, long int oldval, long int newval) -{ - long int ret; - - __asm__ __volatile__ ( - "/* Inline compare & swap */\n" - "1:\t" - "ldq_l %0,%4\n\t" - "cmpeq %0,%2,%0\n\t" - "beq %0,3f\n\t" - "mov %3,%0\n\t" - "stq_c %0,%1\n\t" - "beq %0,2f\n\t" - ".subsection 1\n" - "2:\t" - "br 1b\n" - ".previous\n\t" - "3:\t" - "mb\n\t" - "/* End compare & swap */" - : "=&r"(ret), "=m"(*p) - : "r"(oldval), "r"(newval), "m"(*p)); - - return ret; -} - -#endif /* atomicity.h */ diff --git a/sysdeps/generic/atomicity.h b/sysdeps/generic/atomicity.h deleted file mode 100644 index 2fd94e5068..0000000000 --- a/sysdeps/generic/atomicity.h +++ /dev/null @@ -1,54 +0,0 @@ -/* Low-level functions for atomic operations. Stub version. - Copyright (C) 1997,2001 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _ATOMICITY_H -#define _ATOMICITY_H 1 - -#include <inttypes.h> - -#warning stub atomicity functions are not atomic - -static inline int -__attribute__ ((unused)) -exchange_and_add (volatile uint32_t *mem, int val) -{ - int result = *mem; - *mem += val; - return result; -} - -static inline void -__attribute__ ((unused)) -atomic_add (volatile uint32_t *mem, int val) -{ - *mem += val; -} - -static inline int -__attribute__ ((unused)) -compare_and_swap (volatile long int *p, long int oldval, long int newval) -{ - if (*p != oldval) - return 0; - - *p = newval; - return 1; -} - -#endif /* atomicity.h */ diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h index 2a6aa48b5b..099d720a4c 100644 --- a/sysdeps/i386/i486/bits/string.h +++ b/sysdeps/i386/i486/bits/string.h @@ -1,5 +1,5 @@ /* Optimized, inlined string functions. i486 version. - Copyright (C) 1997,1998,1999,2000,2001,2002,2003 + Copyright (C) 1997,1998,1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -1732,7 +1732,7 @@ __strspn_g (__const char *__s, __const char *__accept) #define strpbrk(s, accept) \ (__extension__ (__builtin_constant_p (accept) && sizeof ((accept)[0]) == 1 \ ? ((accept)[0] == '\0' \ - ? ((void) (s), NULL) \ + ? ((void) (s), (char *) 0) \ : ((accept)[1] == '\0' \ ? strchr ((s), (accept)[0]) \ : __strpbrk_cg ((s), (accept), strlen (accept)))) \ |