diff options
Diffstat (limited to 'libstdc++-v3/config/cpu/generic')
5 files changed, 243 insertions, 0 deletions
diff --git a/libstdc++-v3/config/cpu/generic/atomic_word.h b/libstdc++-v3/config/cpu/generic/atomic_word.h new file mode 100644 index 000000000..f2bdbbc96 --- /dev/null +++ b/libstdc++-v3/config/cpu/generic/atomic_word.h @@ -0,0 +1,47 @@ +// Low-level type for atomic operations -*- C++ -*- + +// Copyright (C) 2004, 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/>. + +/** @file atomic_word.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_ATOMIC_WORD_H +#define _GLIBCXX_ATOMIC_WORD_H 1 + +typedef int _Atomic_word; + +// Define these two macros using the appropriate memory barrier for the target. +// The commented out versions below are the defaults. +// See ia64/atomic_word.h for an alternative approach. + +// This one prevents loads from being hoisted across the barrier; +// in other words, this is a Load-Load acquire barrier. +// This is necessary iff TARGET_RELAXED_ORDERING is defined in tm.h. +// #define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory") + +// This one prevents stores from being sunk across the barrier; in other +// words, a Store-Store release barrier. +// #define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory") + +#endif diff --git a/libstdc++-v3/config/cpu/generic/atomicity_builtins/atomicity.h b/libstdc++-v3/config/cpu/generic/atomicity_builtins/atomicity.h new file mode 100644 index 000000000..581c41fda --- /dev/null +++ b/libstdc++-v3/config/cpu/generic/atomicity_builtins/atomicity.h @@ -0,0 +1,44 @@ +// Low-level functions for atomic operations: version for CPUs providing +// atomic builtins -*- C++ -*- + +// Copyright (C) 2006, 2009, 2010 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 <bits/c++config.h> +#include <bits/atomic_word.h> + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + _Atomic_word + __attribute__ ((__unused__)) + __exchange_and_add(volatile _Atomic_word* __mem, int __val) throw () + { return __sync_fetch_and_add(__mem, __val); } + + void + __attribute__ ((__unused__)) + __atomic_add(volatile _Atomic_word* __mem, int __val) throw () + { __sync_fetch_and_add(__mem, __val); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace diff --git a/libstdc++-v3/config/cpu/generic/atomicity_mutex/atomicity.h b/libstdc++-v3/config/cpu/generic/atomicity_mutex/atomicity.h new file mode 100644 index 000000000..dc0a5a065 --- /dev/null +++ b/libstdc++-v3/config/cpu/generic/atomicity_mutex/atomicity.h @@ -0,0 +1,60 @@ +// Low-level functions for atomic operations: Generic version -*- C++ -*- + +// Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010 +// 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> +#include <ext/concurrence.h> + +namespace +{ + __gnu_cxx::__mutex& + get_atomic_mutex() + { + static __gnu_cxx::__mutex atomic_mutex; + return atomic_mutex; + } +} // anonymous namespace + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + _Atomic_word + __attribute__ ((__unused__)) + __exchange_and_add(volatile _Atomic_word* __mem, int __val) throw () + { + __gnu_cxx::__scoped_lock sentry(get_atomic_mutex()); + _Atomic_word __result; + __result = *__mem; + *__mem += __val; + return __result; + } + + void + __attribute__ ((__unused__)) + __atomic_add(volatile _Atomic_word* __mem, int __val) throw () + { __exchange_and_add(__mem, __val); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace diff --git a/libstdc++-v3/config/cpu/generic/cpu_defines.h b/libstdc++-v3/config/cpu/generic/cpu_defines.h new file mode 100644 index 000000000..c1b986337 --- /dev/null +++ b/libstdc++-v3/config/cpu/generic/cpu_defines.h @@ -0,0 +1,33 @@ +// Specific definitions for generic platforms -*- C++ -*- + +// Copyright (C) 2005, 2009, 2010 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/cpu_defines.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iosfwd} + */ + +#ifndef _GLIBCXX_CPU_DEFINES +#define _GLIBCXX_CPU_DEFINES 1 + +#endif diff --git a/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h b/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h new file mode 100644 index 000000000..f48f73e00 --- /dev/null +++ b/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h @@ -0,0 +1,59 @@ +// Control various target specific ABI tweaks. Generic version. + +// Copyright (C) 2004, 2006, 2008, 2009, 2011 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/cxxabi_tweaks.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{cxxabi.h} + */ + +#ifndef _CXXABI_TWEAKS_H +#define _CXXABI_TWEAKS_H 1 + +#ifdef __cplusplus +namespace __cxxabiv1 +{ + extern "C" + { +#endif + + // The generic ABI uses the first byte of a 64-bit guard variable. +#define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) +#define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 +#define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) +#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) +#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) + __extension__ typedef int __guard __attribute__((mode (__DI__))); + + // __cxa_vec_ctor has void return type. + typedef void __cxa_vec_ctor_return_type; +#define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return + // Constructors and destructors do not return a value. + typedef void __cxa_cdtor_return_type; + +#ifdef __cplusplus + } +} // namespace __cxxabiv1 +#endif + +#endif |