diff options
Diffstat (limited to 'lib/asio/detail/gcc_arm_fenced_block.hpp')
-rw-r--r-- | lib/asio/detail/gcc_arm_fenced_block.hpp | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/lib/asio/detail/gcc_arm_fenced_block.hpp b/lib/asio/detail/gcc_arm_fenced_block.hpp deleted file mode 100644 index 7919a55..0000000 --- a/lib/asio/detail/gcc_arm_fenced_block.hpp +++ /dev/null @@ -1,91 +0,0 @@ -// -// detail/gcc_arm_fenced_block.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -#ifndef ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP -#define ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" - -#if defined(__GNUC__) && defined(__arm__) - -#include "asio/detail/noncopyable.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -class gcc_arm_fenced_block - : private noncopyable -{ -public: - enum half_t { half }; - enum full_t { full }; - - // Constructor for a half fenced block. - explicit gcc_arm_fenced_block(half_t) - { - } - - // Constructor for a full fenced block. - explicit gcc_arm_fenced_block(full_t) - { - barrier(); - } - - // Destructor. - ~gcc_arm_fenced_block() - { - barrier(); - } - -private: - static void barrier() - { -#if defined(__ARM_ARCH_4__) \ - || defined(__ARM_ARCH_4T__) \ - || defined(__ARM_ARCH_5__) \ - || defined(__ARM_ARCH_5E__) \ - || defined(__ARM_ARCH_5T__) \ - || defined(__ARM_ARCH_5TE__) \ - || defined(__ARM_ARCH_5TEJ__) \ - || defined(__ARM_ARCH_6__) \ - || defined(__ARM_ARCH_6J__) \ - || defined(__ARM_ARCH_6K__) \ - || defined(__ARM_ARCH_6Z__) \ - || defined(__ARM_ARCH_6ZK__) \ - || defined(__ARM_ARCH_6T2__) -# if defined(__thumb__) - // This is just a placeholder and almost certainly not sufficient. - __asm__ __volatile__ ("" : : : "memory"); -# else // defined(__thumb__) - int a = 0, b = 0; - __asm__ __volatile__ ("swp %0, %1, [%2]" - : "=&r"(a) : "r"(1), "r"(&b) : "memory", "cc"); -# endif // defined(__thumb__) -#else - // ARMv7 and later. - __asm__ __volatile__ ("dmb" : : : "memory"); -#endif - } -}; - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // defined(__GNUC__) && defined(__arm__) - -#endif // ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP |