diff options
Diffstat (limited to 'contrib/libstdc++/config/cpu/sparc/sparc32/bits/atomicity.h')
-rw-r--r-- | contrib/libstdc++/config/cpu/sparc/sparc32/bits/atomicity.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/contrib/libstdc++/config/cpu/sparc/sparc32/bits/atomicity.h b/contrib/libstdc++/config/cpu/sparc/sparc32/bits/atomicity.h deleted file mode 100644 index aa639e4..0000000 --- a/contrib/libstdc++/config/cpu/sparc/sparc32/bits/atomicity.h +++ /dev/null @@ -1,88 +0,0 @@ -// Low-level functions for atomic operations: Sparc32 version -*- C++ -*- - -// Copyright (C) 1999, 2000, 2001 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 -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This 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 General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// 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 - -typedef int _Atomic_word; - -template <int __inst> -struct __Atomicity_lock -{ - static unsigned char _S_atomicity_lock; -}; - -template <int __inst> -unsigned char __Atomicity_lock<__inst>::_S_atomicity_lock = 0; - -template unsigned char __Atomicity_lock<0>::_S_atomicity_lock; - -static int -__attribute__ ((__unused__)) -__exchange_and_add (volatile _Atomic_word* __mem, int __val) -{ - _Atomic_word __result, __tmp; - - __asm__ __volatile__("1: ldstub [%1], %0\n\t" - " cmp %0, 0\n\t" - " bne 1b\n\t" - " nop" - : "=&r" (__tmp) - : "r" (&__Atomicity_lock<0>::_S_atomicity_lock) - : "memory"); - __result = *__mem; - *__mem += __val; - __asm__ __volatile__("stb %%g0, [%0]" - : /* no outputs */ - : "r" (&__Atomicity_lock<0>::_S_atomicity_lock) - : "memory"); - return __result; -} - -static void -__attribute__ ((__unused__)) -__atomic_add (volatile _Atomic_word* __mem, int __val) -{ - _Atomic_word __tmp; - - __asm__ __volatile__("1: ldstub [%1], %0\n\t" - " cmp %0, 0\n\t" - " bne 1b\n\t" - " nop" - : "=&r" (__tmp) - : "r" (&__Atomicity_lock<0>::_S_atomicity_lock) - : "memory"); - *__mem += __val; - __asm__ __volatile__("stb %%g0, [%0]" - : /* no outputs */ - : "r" (&__Atomicity_lock<0>::_S_atomicity_lock) - : "memory"); -} - -#endif /* atomicity.h */ |