dolphin/Source/Core/Common/Debug/Threads.h
JosJuice 7cecb28bdf DolphinQt: Properly lock CPU before accessing emulated memory
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.
2023-02-12 11:27:50 +01:00

68 lines
1.7 KiB
C++

// Copyright 2020 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "Common/CommonTypes.h"
namespace Core
{
class CPUThreadGuard;
};
namespace Common::Debug
{
struct PartialContext
{
std::optional<std::array<u32, 32>> gpr;
std::optional<u32> cr;
std::optional<u32> lr;
std::optional<u32> ctr;
std::optional<u32> xer;
std::optional<std::array<double, 32>> fpr;
std::optional<u64> fpscr;
std::optional<u32> srr0;
std::optional<u32> srr1;
std::optional<u16> dummy;
std::optional<u16> state;
std::optional<std::array<u32, 8>> gqr;
std::optional<std::array<double, 32>> psf;
};
class ThreadView
{
public:
virtual ~ThreadView() = default;
enum class API
{
OSThread, // Nintendo SDK thread
LWPThread, // devkitPro libogc thread
};
virtual PartialContext GetContext(const Core::CPUThreadGuard& guard) const = 0;
virtual u32 GetAddress() const = 0;
virtual u16 GetState() const = 0;
virtual bool IsSuspended() const = 0;
virtual bool IsDetached() const = 0;
virtual s32 GetBasePriority() const = 0;
virtual s32 GetEffectivePriority() const = 0;
virtual u32 GetStackStart() const = 0;
virtual u32 GetStackEnd() const = 0;
virtual std::size_t GetStackSize() const = 0;
virtual s32 GetErrno() const = 0;
// Implementation specific, used to store arbitrary data
virtual std::string GetSpecific(const Core::CPUThreadGuard& guard) const = 0;
virtual bool IsValid(const Core::CPUThreadGuard& guard) const = 0;
};
using Threads = std::vector<std::unique_ptr<ThreadView>>;
} // namespace Common::Debug