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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.
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// Copyright 2015 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 "Common/CommonTypes.h"
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#include <map>
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#include <string>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <vector>
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namespace Core
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{
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class CPUThreadGuard;
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}
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// MemoryWatcher reads a file containing in-game memory addresses and outputs
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// changes to those memory addresses to a unix domain socket as the game runs.
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//
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// The input file is a newline-separated list of hex memory addresses, without
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// the "0x". To follow pointers, separate addresses with a space. For example,
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// "ABCD EF" will watch the address at (*0xABCD) + 0xEF.
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// The output to the socket is two lines. The first is the address from the
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// input file, and the second is the new value in hex.
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class MemoryWatcher final
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{
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public:
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MemoryWatcher();
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~MemoryWatcher();
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void Step(const Core::CPUThreadGuard& guard);
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private:
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bool LoadAddresses(const std::string& path);
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bool OpenSocket(const std::string& path);
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void ParseLine(const std::string& line);
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u32 ChasePointer(const Core::CPUThreadGuard& guard, const std::string& line);
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std::string ComposeMessages(const Core::CPUThreadGuard& guard);
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bool m_running = false;
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int m_fd;
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sockaddr_un m_addr{};
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// Address as stored in the file -> list of offsets to follow
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std::map<std::string, std::vector<u32>> m_addresses;
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// Address as stored in the file -> current value
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std::map<std::string, u32> m_values;
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};
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