c284a1261d
* config/os/aix/atomicity.h: Use __gnu_cxx namespace. Remove
static, and inline keyworks.
From-SVN: r78574
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
// Low-level functions for atomic operations: AIX version -*- C++ -*-
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// Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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#include <bits/atomicity.h>
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/* We cannot use the cpu/powerpc/bits/atomicity.h inline assembly
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definitions for these operations since they depend on operations
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that are not available on the original POWER architecture. AIX
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still runs on the POWER architecture, so it would be incorrect to
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assume the existence of these instructions.
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The definition of _Atomic_word must match the type pointed to by
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atomic_p in <sys/atomic_op.h>. */
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extern "C"
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{
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#include <sys/atomic_op.h>
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}
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namespace __gnu_cxx
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{
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_Atomic_word
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__attribute__ ((__unused__))
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__exchange_and_add (volatile _Atomic_word* __mem, int __val)
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{
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return ::fetch_and_add (const_cast<atomic_p>(__mem), __val);
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}
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void
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__attribute__ ((__unused__))
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__atomic_add (volatile _Atomic_word* __mem, int __val)
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{
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(void) ::fetch_and_add (const_cast<atomic_p>(__mem), __val);
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}
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} // namespace __gnu_cxx
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