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-rw-r--r--contrib/libstdc++/include/ext/atomicity.h118
1 files changed, 0 insertions, 118 deletions
diff --git a/contrib/libstdc++/include/ext/atomicity.h b/contrib/libstdc++/include/ext/atomicity.h
deleted file mode 100644
index 05bac1f46d40..000000000000
--- a/contrib/libstdc++/include/ext/atomicity.h
+++ /dev/null
@@ -1,118 +0,0 @@
-// Support for atomic operations -*- C++ -*-
-
-// Copyright (C) 2004, 2005, 2006 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// 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.
-
-/** @file atomicity.h
- * This is an internal header file, included by other library headers.
- * You should not attempt to use it directly.
- */
-
-#ifndef _GLIBCXX_ATOMICITY_H
-#define _GLIBCXX_ATOMICITY_H 1
-
-#include <bits/c++config.h>
-#include <bits/gthr.h>
-#include <bits/atomic_word.h>
-
-_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-
- // Functions for portable atomic access.
- // To abstract locking primitives across all thread policies, use:
- // __exchange_and_add_dispatch
- // __atomic_add_dispatch
-#ifdef _GLIBCXX_ATOMIC_BUILTINS
- static inline _Atomic_word
- __exchange_and_add(volatile _Atomic_word* __mem, int __val)
- { return __sync_fetch_and_add(__mem, __val); }
-
- static inline void
- __atomic_add(volatile _Atomic_word* __mem, int __val)
- { __sync_fetch_and_add(__mem, __val); }
-#else
- _Atomic_word
- __attribute__ ((__unused__))
- __exchange_and_add(volatile _Atomic_word*, int);
-
- void
- __attribute__ ((__unused__))
- __atomic_add(volatile _Atomic_word*, int);
-#endif
-
- static inline _Atomic_word
- __exchange_and_add_single(_Atomic_word* __mem, int __val)
- {
- _Atomic_word __result = *__mem;
- *__mem += __val;
- return __result;
- }
-
- static inline void
- __atomic_add_single(_Atomic_word* __mem, int __val)
- { *__mem += __val; }
-
- static inline _Atomic_word
- __attribute__ ((__unused__))
- __exchange_and_add_dispatch(_Atomic_word* __mem, int __val)
- {
-#ifdef __GTHREADS
- if (__gthread_active_p())
- return __exchange_and_add(__mem, __val);
- else
- return __exchange_and_add_single(__mem, __val);
-#else
- return __exchange_and_add_single(__mem, __val);
-#endif
- }
-
- static inline void
- __attribute__ ((__unused__))
- __atomic_add_dispatch(_Atomic_word* __mem, int __val)
- {
-#ifdef __GTHREADS
- if (__gthread_active_p())
- __atomic_add(__mem, __val);
- else
- __atomic_add_single(__mem, __val);
-#else
- __atomic_add_single(__mem, __val);
-#endif
- }
-
-_GLIBCXX_END_NAMESPACE
-
-// Even if the CPU doesn't need a memory barrier, we need to ensure
-// that the compiler doesn't reorder memory accesses across the
-// barriers.
-#ifndef _GLIBCXX_READ_MEM_BARRIER
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory")
-#endif
-#ifndef _GLIBCXX_WRITE_MEM_BARRIER
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory")
-#endif
-
-#endif