diff --git a/libcxxabi/src/cxa_default_handlers.cpp b/libcxxabi/src/cxa_default_handlers.cpp --- a/libcxxabi/src/cxa_default_handlers.cpp +++ b/libcxxabi/src/cxa_default_handlers.cpp @@ -15,7 +15,7 @@ #include "cxa_handlers.h" #include "cxa_exception.h" #include "private_typeinfo.h" -#include "include/atomic_support.h" +#include "src/include/atomic_support.h" // from libc++ #if !defined(LIBCXXABI_SILENT_TERMINATE) diff --git a/libcxxabi/src/cxa_exception.cpp b/libcxxabi/src/cxa_exception.cpp --- a/libcxxabi/src/cxa_exception.cpp +++ b/libcxxabi/src/cxa_exception.cpp @@ -17,7 +17,7 @@ #include "cxa_exception.h" #include "cxa_handlers.h" #include "fallback_malloc.h" -#include "include/atomic_support.h" +#include "src/include/atomic_support.h" // from libc++ #if __has_feature(address_sanitizer) #include diff --git a/libcxxabi/src/cxa_guard_impl.h b/libcxxabi/src/cxa_guard_impl.h --- a/libcxxabi/src/cxa_guard_impl.h +++ b/libcxxabi/src/cxa_guard_impl.h @@ -38,7 +38,7 @@ */ #include "__cxxabi_config.h" -#include "include/atomic_support.h" +#include "src/include/atomic_support.h" // from libc++ #include #if defined(__has_include) # if __has_include() diff --git a/libcxxabi/src/cxa_handlers.cpp b/libcxxabi/src/cxa_handlers.cpp --- a/libcxxabi/src/cxa_handlers.cpp +++ b/libcxxabi/src/cxa_handlers.cpp @@ -17,7 +17,7 @@ #include "cxa_handlers.h" #include "cxa_exception.h" #include "private_typeinfo.h" -#include "include/atomic_support.h" +#include "src/include/atomic_support.h" // from libc++ namespace std { diff --git a/libcxxabi/src/include/atomic_support.h b/libcxxabi/src/include/atomic_support.h deleted file mode 100644 --- a/libcxxabi/src/include/atomic_support.h +++ /dev/null @@ -1,180 +0,0 @@ -//===----------------------------------------------------------------------===//// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===//// - -// FIXME: This file is copied from libcxx/src/include/atomic_support.h. Instead -// of duplicating the file in libc++abi we should require that the libc++ -// sources are available when building libc++abi. - -#ifndef ATOMIC_SUPPORT_H -#define ATOMIC_SUPPORT_H - -#include "__config" -#include "memory" // for __libcpp_relaxed_load - -#if defined(__clang__) && __has_builtin(__atomic_load_n) \ - && __has_builtin(__atomic_store_n) \ - && __has_builtin(__atomic_add_fetch) \ - && __has_builtin(__atomic_exchange_n) \ - && __has_builtin(__atomic_compare_exchange_n) \ - && defined(__ATOMIC_RELAXED) \ - && defined(__ATOMIC_CONSUME) \ - && defined(__ATOMIC_ACQUIRE) \ - && defined(__ATOMIC_RELEASE) \ - && defined(__ATOMIC_ACQ_REL) \ - && defined(__ATOMIC_SEQ_CST) -# define _LIBCXXABI_HAS_ATOMIC_BUILTINS -#elif defined(_LIBCPP_COMPILER_GCC) -# define _LIBCXXABI_HAS_ATOMIC_BUILTINS -#endif - -#if !defined(_LIBCXXABI_HAS_ATOMIC_BUILTINS) && !defined(_LIBCXXABI_HAS_NO_THREADS) -# if defined(_LIBCPP_WARNING) - _LIBCPP_WARNING("Building libc++ without __atomic builtins is unsupported") -# else -# warning Building libc++ without __atomic builtins is unsupported -# endif -#endif - -_LIBCPP_BEGIN_NAMESPACE_STD - -namespace { - -#if defined(_LIBCXXABI_HAS_ATOMIC_BUILTINS) && !defined(_LIBCXXABI_HAS_NO_THREADS) - -enum __libcpp_atomic_order { - _AO_Relaxed = __ATOMIC_RELAXED, - _AO_Consume = __ATOMIC_CONSUME, - _AO_Acquire = __ATOMIC_ACQUIRE, - _AO_Release = __ATOMIC_RELEASE, - _AO_Acq_Rel = __ATOMIC_ACQ_REL, - _AO_Seq = __ATOMIC_SEQ_CST -}; - -template -inline _LIBCPP_INLINE_VISIBILITY -void __libcpp_atomic_store(_ValueType* __dest, _FromType __val, - int __order = _AO_Seq) -{ - __atomic_store_n(__dest, __val, __order); -} - -template -inline _LIBCPP_INLINE_VISIBILITY -void __libcpp_relaxed_store(_ValueType* __dest, _FromType __val) -{ - __atomic_store_n(__dest, __val, _AO_Relaxed); -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_load(_ValueType const* __val, - int __order = _AO_Seq) -{ - return __atomic_load_n(__val, __order); -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_add(_ValueType* __val, _AddType __a, - int __order = _AO_Seq) -{ - return __atomic_add_fetch(__val, __a, __order); -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_exchange(_ValueType* __target, - _ValueType __value, int __order = _AO_Seq) -{ - return __atomic_exchange_n(__target, __value, __order); -} - -template -inline _LIBCPP_INLINE_VISIBILITY -bool __libcpp_atomic_compare_exchange(_ValueType* __val, - _ValueType* __expected, _ValueType __after, - int __success_order = _AO_Seq, - int __fail_order = _AO_Seq) -{ - return __atomic_compare_exchange_n(__val, __expected, __after, true, - __success_order, __fail_order); -} - -#else // _LIBCPP_HAS_NO_THREADS - -enum __libcpp_atomic_order { - _AO_Relaxed, - _AO_Consume, - _AO_Acquire, - _AO_Release, - _AO_Acq_Rel, - _AO_Seq -}; - -template -inline _LIBCPP_INLINE_VISIBILITY -void __libcpp_atomic_store(_ValueType* __dest, _FromType __val, - int = 0) -{ - *__dest = __val; -} - -template -inline _LIBCPP_INLINE_VISIBILITY -void __libcpp_relaxed_store(_ValueType* __dest, _FromType __val) -{ - *__dest = __val; -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_load(_ValueType const* __val, - int = 0) -{ - return *__val; -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_add(_ValueType* __val, _AddType __a, - int = 0) -{ - return *__val += __a; -} - -template -inline _LIBCPP_INLINE_VISIBILITY -_ValueType __libcpp_atomic_exchange(_ValueType* __target, - _ValueType __value, int = _AO_Seq) -{ - _ValueType old = *__target; - *__target = __value; - return old; -} - -template -inline _LIBCPP_INLINE_VISIBILITY -bool __libcpp_atomic_compare_exchange(_ValueType* __val, - _ValueType* __expected, _ValueType __after, - int = 0, int = 0) -{ - if (*__val == *__expected) { - *__val = __after; - return true; - } - *__expected = *__val; - return false; -} - -#endif // _LIBCPP_HAS_NO_THREADS - -} // end namespace - -_LIBCPP_END_NAMESPACE_STD - -#endif // ATOMIC_SUPPORT_H