diff options
Diffstat (limited to 'contrib/libstdc++/config/cpu/powerpc/atomicity.h')
-rw-r--r-- | contrib/libstdc++/config/cpu/powerpc/atomicity.h | 82 |
1 files changed, 40 insertions, 42 deletions
diff --git a/contrib/libstdc++/config/cpu/powerpc/atomicity.h b/contrib/libstdc++/config/cpu/powerpc/atomicity.h index b5370fc..7314944 100644 --- a/contrib/libstdc++/config/cpu/powerpc/atomicity.h +++ b/contrib/libstdc++/config/cpu/powerpc/atomicity.h @@ -1,6 +1,6 @@ // Low-level functions for atomic operations: PowerPC version -*- C++ -*- -// Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. +// Copyright (C) 1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the @@ -27,8 +27,7 @@ // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. -#ifndef _BITS_ATOMICITY_H -#define _BITS_ATOMICITY_H 1 +#include <bits/atomicity.h> #ifdef __PPC405__ #define _STWCX "sync \n\tstwcx. " @@ -36,43 +35,42 @@ #define _STWCX "stwcx. " #endif -typedef int _Atomic_word; - -static inline _Atomic_word -__attribute__ ((__unused__)) -__exchange_and_add (volatile _Atomic_word* __mem, int __val) -{ - _Atomic_word __tmp, __res; - __asm__ __volatile__ ( - "/* Inline exchange & add */\n" - "0:\t" - "lwarx %0,0,%2 \n\t" - "add%I3 %1,%0,%3 \n\t" - _STWCX " %1,0,%2 \n\t" - "bne- 0b \n\t" - "/* End exchange & add */" - : "=&b"(__res), "=&r"(__tmp) - : "r" (__mem), "Ir"(__val) - : "cr0", "memory"); - return __res; -} - -static inline void -__attribute__ ((__unused__)) -__atomic_add (volatile _Atomic_word *__mem, int __val) +namespace __gnu_cxx { - _Atomic_word __tmp; - __asm__ __volatile__ ( - "/* Inline atomic add */\n" - "0:\t" - "lwarx %0,0,%1 \n\t" - "add%I2 %0,%0,%2 \n\t" - _STWCX " %0,0,%1 \n\t" - "bne- 0b \n\t" - "/* End atomic add */" - : "=&b"(__tmp) - : "r" (__mem), "Ir"(__val) - : "cr0", "memory"); -} - -#endif /* atomicity.h */ + _Atomic_word + __attribute__ ((__unused__)) + __exchange_and_add(volatile _Atomic_word* __mem, int __val) + { + _Atomic_word __tmp, __res; + __asm__ __volatile__ ( + "/* Inline exchange & add */\n" + "0:\t" + "lwarx %0,0,%3 \n\t" + "add%I4 %1,%0,%4 \n\t" + _STWCX " %1,0,%3 \n\t" + "bne- 0b \n\t" + "/* End exchange & add */" + : "=&b"(__res), "=&r"(__tmp), "=m" (*__mem) + : "r" (__mem), "Ir"(__val), "m" (*__mem) + : "cr0"); + return __res; + } + + void + __attribute__ ((__unused__)) + __atomic_add(volatile _Atomic_word* __mem, int __val) + { + _Atomic_word __tmp; + __asm__ __volatile__ ( + "/* Inline atomic add */\n" + "0:\t" + "lwarx %0,0,%2 \n\t" + "add%I3 %0,%0,%3 \n\t" + _STWCX " %0,0,%2 \n\t" + "bne- 0b \n\t" + "/* End atomic add */" + : "=&b"(__tmp), "=m" (*__mem) + : "r" (__mem), "Ir"(__val), "m" (*__mem) + : "cr0"); + } +} // namespace __gnu_cxx |