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-rw-r--r--gcc-4.4.3/libstdc++-v3/config/cpu/i386/atomicity.h70
1 files changed, 0 insertions, 70 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/config/cpu/i386/atomicity.h b/gcc-4.4.3/libstdc++-v3/config/cpu/i386/atomicity.h
deleted file mode 100644
index de2b329e8..000000000
--- a/gcc-4.4.3/libstdc++-v3/config/cpu/i386/atomicity.h
+++ /dev/null
@@ -1,70 +0,0 @@
-// Low-level functions for atomic operations: x86, x >= 3 version -*- C++ -*-
-
-// Copyright (C) 2003, 2004, 2005, 2009 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 3, 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.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-// <http://www.gnu.org/licenses/>.
-
-#include <ext/atomicity.h>
-
-_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-
- template<int __inst>
- struct _Atomicity_lock
- {
- static volatile _Atomic_word _S_atomicity_lock;
- };
-
- template<int __inst>
- volatile _Atomic_word _Atomicity_lock<__inst>::_S_atomicity_lock = 0;
-
- template volatile _Atomic_word _Atomicity_lock<0>::_S_atomicity_lock;
-
- _Atomic_word
- __attribute__ ((__unused__))
- __exchange_and_add(volatile _Atomic_word* __mem, int __val)
- {
- register _Atomic_word __result, __tmp = 1;
-
- // Obtain the atomic exchange/add spin lock.
- do
- {
- __asm__ __volatile__ ("xchg{l} {%0,%1|%1,%0}"
- : "=m" (_Atomicity_lock<0>::_S_atomicity_lock),
- "+r" (__tmp)
- : "m" (_Atomicity_lock<0>::_S_atomicity_lock));
- }
- while (__tmp);
-
- __result = *__mem;
- *__mem += __val;
-
- // Release spin lock.
- _Atomicity_lock<0>::_S_atomicity_lock = 0;
-
- return __result;
- }
-
- void
- __attribute__ ((__unused__))
- __atomic_add(volatile _Atomic_word* __mem, int __val)
- { __exchange_and_add(__mem, __val); }
-
-_GLIBCXX_END_NAMESPACE