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Diffstat (limited to 'src/common/code_block.h')
-rw-r--r-- | src/common/code_block.h | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/src/common/code_block.h b/src/common/code_block.h deleted file mode 100644 index 6a55a8e30..000000000 --- a/src/common/code_block.h +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2013 Dolphin Emulator Project -// Licensed under GPLv2 -// Refer to the license.txt file included. - -#pragma once - -#include <cstddef> -#include "common/common_types.h" -#include "common/memory_util.h" - -// Everything that needs to generate code should inherit from this. -// You get memory management for free, plus, you can use all emitter functions without -// having to prefix them with gen-> or something similar. -// Example implementation: -// class JIT : public CodeBlock<ARMXEmitter> {} -template <class T> -class CodeBlock : public T, NonCopyable { -private: - // A privately used function to set the executable RAM space to something invalid. - // For debugging usefulness it should be used to set the RAM to a host specific breakpoint - // instruction - virtual void PoisonMemory() = 0; - -protected: - u8* region; - size_t region_size; - -public: - CodeBlock() : region(nullptr), region_size(0) {} - virtual ~CodeBlock() { - if (region) - FreeCodeSpace(); - } - - // Call this before you generate any code. - void AllocCodeSpace(int size) { - region_size = size; - region = (u8*)AllocateExecutableMemory(region_size); - T::SetCodePtr(region); - } - - // Always clear code space with breakpoints, so that if someone accidentally executes - // uninitialized, it just breaks into the debugger. - void ClearCodeSpace() { - PoisonMemory(); - ResetCodePtr(); - } - - // Call this when shutting down. Don't rely on the destructor, even though it'll do the job. - void FreeCodeSpace() { -#ifdef __SYMBIAN32__ - ResetExecutableMemory(region); -#else - FreeMemoryPages(region, region_size); -#endif - region = nullptr; - region_size = 0; - } - - bool IsInSpace(const u8* ptr) { - return (ptr >= region) && (ptr < (region + region_size)); - } - - // Cannot currently be undone. Will write protect the entire code region. - // Start over if you need to change the code (call FreeCodeSpace(), AllocCodeSpace()). - void WriteProtect() { - WriteProtectMemory(region, region_size, true); - } - - void ResetCodePtr() { - T::SetCodePtr(region); - } - - size_t GetSpaceLeft() const { - return region_size - (T::GetCodePtr() - region); - } - - u8* GetBasePtr() { - return region; - } - - size_t GetOffset(const u8* ptr) const { - return ptr - region; - } -}; |