mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-09 06:00:15 +02:00
75 lines
3.2 KiB
C++
75 lines
3.2 KiB
C++
// SPDX-License-Identifier: MIT
|
|
#pragma once
|
|
|
|
#include <FEXCore/Utils/IntervalList.h>
|
|
#include <FEXCore/HLE/SyscallHandler.h>
|
|
#include <mutex>
|
|
#include <shared_mutex>
|
|
#include <unordered_map>
|
|
#include <string_view>
|
|
|
|
namespace FEXCore::Core {
|
|
struct InternalThreadState;
|
|
}
|
|
|
|
namespace FEXCore::Context {
|
|
class Context;
|
|
}
|
|
|
|
namespace FEX::Windows {
|
|
/**
|
|
* @brief Handles SMC and regular code invalidation
|
|
*/
|
|
class InvalidationTracker {
|
|
public:
|
|
InvalidationTracker(FEXCore::Context::Context& CTX, const std::unordered_map<DWORD, FEXCore::Core::InternalThreadState*>& Threads);
|
|
void HandleMemoryProtectionNotification(uint64_t Address, uint64_t Size, ULONG Prot);
|
|
void HandleProcessExecuteFlagsChange(ULONG Flags);
|
|
void HandleImageMap(std::string_view Name, uint64_t Address);
|
|
struct InvalidateContainingSectionResult {
|
|
uint64_t SectionStart;
|
|
uint64_t SectionSize;
|
|
};
|
|
InvalidateContainingSectionResult InvalidateContainingSection(uint64_t Address, bool Free);
|
|
void InvalidateAlignedInterval(uint64_t Address, uint64_t Size, bool Free);
|
|
void ReprotectRWXIntervals(uint64_t Address, uint64_t Size);
|
|
bool HandleRWXAccessViolation(FEXCore::Core::InternalThreadState* Thread, uint64_t HostPC, uint64_t FaultAddress);
|
|
|
|
// Unprotects any RWX intervals in the input interval and invalidates code
|
|
// NOTE: CodeInvalidationMutex must be locked when calling this, and if true is returned, kept locked until the write ends.
|
|
bool BeginUntrackedWriteLocked(uint64_t Address, uint64_t Size);
|
|
|
|
FEXCore::HLE::ExecutableRangeInfo QueryExecutableRange(uint64_t Address);
|
|
|
|
private:
|
|
void DetectMonoBackpatcherBlock(FEXCore::Core::InternalThreadState* Thread, uint64_t HostPC);
|
|
void DisableSMCDetection();
|
|
void InvalidateIntervalInternal(uint64_t Address, uint64_t Size);
|
|
// NOTE: This assumed CodeInvalidationMutex is locked by the caller
|
|
void InvalidateIntervalInternalLocked(uint64_t Address, uint64_t Size);
|
|
|
|
// NOTE: If ForWriteLocked is true then this assumes CodeInvalidationMutex is locked by the caller,
|
|
// and any code in the range will be invalidated before protection as RWX, otherwise protects as RX if false.
|
|
bool ProtectRWXIntervalsInternal(uint64_t Address, uint64_t Size, bool ForWriteLocked);
|
|
|
|
// Returns the correct protection for trapping (removing write) or untrapping (restoring write) an RWX interval.
|
|
// For DEP-promoted regions (originally non-exec), uses PAGE_READONLY/PAGE_READWRITE instead of PAGE_EXECUTE_READ/PAGE_EXECUTE_READWRITE.
|
|
// NOTE: Must be called with IntervalsLock held.
|
|
ULONG GetTrapProt(uint64_t Address) const;
|
|
ULONG GetUntrapProt(uint64_t Address) const;
|
|
|
|
FEXCore::IntervalList<uint64_t> XIntervals;
|
|
FEXCore::IntervalList<uint64_t> RWXIntervals;
|
|
std::shared_mutex IntervalsLock;
|
|
FEXCore::Context::Context& CTX;
|
|
const std::unordered_map<DWORD, FEXCore::Core::InternalThreadState*>& Threads;
|
|
bool SMCDetectionDisabled {false}; // Protected by IntervalsLock
|
|
bool DEPDisabled {false}; // Protected by IntervalsLock
|
|
FEXCore::IntervalList<uint64_t> DEPPromotedIntervals; // Protected by IntervalsLock
|
|
|
|
bool MonoBackpatcherDetectionPending {false};
|
|
uint64_t MonoBase {0};
|
|
uint64_t MonoEnd {0};
|
|
};
|
|
} // namespace FEX::Windows
|