+++ /dev/null
-// Low-level type for atomic operations -*- C++ -*-
-
-// Copyright (C) 2004-2015 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/>.
-
-#ifndef _GLIBCXX_ATOMIC_WORD_H
-#define _GLIBCXX_ATOMIC_WORD_H 1
-
-typedef int _Atomic_word;
-
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("mb":::"memory")
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("wmb":::"memory")
-
-#endif
+++ /dev/null
-// Low-level type for atomic operations -*- C++ -*-
-
-// Copyright (C) 2004-2015 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/>.
-
-#ifndef _GLIBCXX_ATOMIC_WORD_H
-#define _GLIBCXX_ATOMIC_WORD_H 1
-
-#include <bits/cxxabi_tweaks.h>
-
-typedef int _Atomic_word;
-
-namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
-{
- // Test the first byte of __g and ensure that no loads are hoisted across
- // the test.
- inline bool
- __test_and_acquire (__cxxabiv1::__guard *__g)
- {
- unsigned char __c;
- unsigned char *__p = reinterpret_cast<unsigned char *>(__g);
- // ldN.acq is a load with an implied hoist barrier.
- // would ld8+mask be faster than just doing an ld1?
- __asm __volatile ("ld1.acq %0 = %1" : "=r"(__c) : "m"(*__p) : "memory");
- return __c != 0;
- }
-
- // Set the first byte of __g to 1 and ensure that no stores are sunk
- // across the store.
- inline void
- __set_and_release (__cxxabiv1::__guard *__g)
- {
- unsigned char *__p = reinterpret_cast<unsigned char *>(__g);
- // stN.rel is a store with an implied sink barrier.
- // could load word, set flag, and CAS it back
- __asm __volatile ("st1.rel %0 = %1" : "=m"(*__p) : "r"(1) : "memory");
- }
-
- // We don't define the _BARRIER macros on ia64 because the barriers are
- // included in the test and set, above.
-#define _GLIBCXX_GUARD_TEST_AND_ACQUIRE(G) __gnu_cxx::__test_and_acquire (G)
-#define _GLIBCXX_GUARD_SET_AND_RELEASE(G) __gnu_cxx::__set_and_release (G)
-}
-
-#endif
+++ /dev/null
-// Low-level type for atomic operations -*- C++ -*-
-
-// Copyright (C) 2004-2015 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/>.
-
-#ifndef _GLIBCXX_ATOMIC_WORD_H
-#define _GLIBCXX_ATOMIC_WORD_H 1
-
-typedef int _Atomic_word;
-
-#ifdef __NO_LWSYNC__
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("sync":::"memory")
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("sync":::"memory")
-#else
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("lwsync":::"memory")
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("lwsync":::"memory")
-#endif
-
-#endif
+++ /dev/null
-// Low-level type for atomic operations -*- C++ -*-
-
-// Copyright (C) 2004-2015 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/>.
-
-/** @file bits/atomic_word.h
- * This is an internal header file, included by other library headers.
- * Do not attempt to use it directly. @headername{ext/atomicity.h}
- */
-
-#ifndef _GLIBCXX_ATOMIC_WORD_H
-#define _GLIBCXX_ATOMIC_WORD_H 1
-
-typedef int _Atomic_word;
-
-#ifdef _ARCH_PPC
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("isync":::"memory")
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("sync":::"memory")
-#else
-#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory")
-#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory")
-#endif
-
-#endif
projects / thirdparty / gcc.git / commitdiff
