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https://github.com/dolphin-emu/dolphin.git
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7cecb28bdf
This fixes a problem I was having where using frame advance with the debugger open would frequently cause panic alerts about invalid addresses due to the CPU thread changing MSR.DR while the host thread was trying to access memory. To aid in tracking down all the places where we weren't properly locking the CPU, I've created a new type (in Core.h) that you have to pass as a reference or pointer to functions that require running as the CPU thread.
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
// Copyright 2011 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <optional>
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#include "Common/CommonTypes.h"
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namespace Core
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{
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class CPUThreadGuard;
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}
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namespace AddressSpace
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{
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enum class Type
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{
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Effective,
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Auxiliary,
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Physical,
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Mem1,
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Mem2,
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Fake,
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};
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struct Accessors
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{
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using iterator = const u8*;
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virtual bool IsValidAddress(const Core::CPUThreadGuard& guard, u32 address) const = 0;
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virtual u8 ReadU8(const Core::CPUThreadGuard& guard, u32 address) const = 0;
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virtual void WriteU8(const Core::CPUThreadGuard& guard, u32 address, u8 value) = 0;
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// overrideable naive implementations of below are defined
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virtual u16 ReadU16(const Core::CPUThreadGuard& guard, u32 address) const;
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virtual void WriteU16(const Core::CPUThreadGuard& guard, u32 address, u16 value);
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virtual u32 ReadU32(const Core::CPUThreadGuard& guard, u32 address) const;
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virtual void WriteU32(const Core::CPUThreadGuard& guard, u32 address, u32 value);
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virtual u64 ReadU64(const Core::CPUThreadGuard& guard, u32 address) const;
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virtual void WriteU64(const Core::CPUThreadGuard& guard, u32 address, u64 value);
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virtual float ReadF32(const Core::CPUThreadGuard& guard, u32 address) const;
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virtual iterator begin() const;
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virtual iterator end() const;
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virtual std::optional<u32> Search(const Core::CPUThreadGuard& guard, u32 haystack_offset,
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const u8* needle_start, std::size_t needle_size,
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bool forward) const;
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virtual ~Accessors();
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};
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Accessors* GetAccessors(Type address_space);
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void Init();
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void Shutdown();
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} // namespace AddressSpace
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