Merge pull request #4728 from bylaws/monohacks

Implement mono specific hacks

FEXCore/include/FEXCore/Core/Context.h

@@ -110,6 +110,7 @@ public:
 
   FEX_DEFAULT_VISIBILITY virtual bool IsAddressInCurrentBlock(FEXCore::Core::InternalThreadState* Thread, uint64_t Address, uint64_t Size) = 0;
   FEX_DEFAULT_VISIBILITY virtual bool IsCurrentBlockSingleInst(FEXCore::Core::InternalThreadState* Thread) = 0;
+  FEX_DEFAULT_VISIBILITY virtual uint64_t GetGuestBlockEntry(FEXCore::Core::InternalThreadState* Thread) = 0;
 
   ///< State reconstruction helpers
   ///< Reconstructs the guest RIP from the passed in thread context and related Host PC.
@@ -227,6 +228,10 @@ public:
   FEX_DEFAULT_VISIBILITY virtual void AddForceTSOInformation(const IntervalList<uint64_t>& ValidRanges, fextl::set<uint64_t>&& Instructions) = 0;
 
   FEX_DEFAULT_VISIBILITY virtual void RemoveForceTSOInformation(uint64_t Address, uint64_t Size) = 0;
+
+  FEX_DEFAULT_VISIBILITY virtual void MarkMonoDetected() = 0;
+
+  FEX_DEFAULT_VISIBILITY virtual void MarkMonoBackpatcherBlock(uint64_t BlockEntry) = 0;
 private:
 };
 

FEXCore/include/FEXCore/Core/CoreState.h

@@ -305,6 +305,7 @@ struct JITPointers {
     uint64_t SyscallHandlerObj {};
     uint64_t SyscallHandlerFunc {};
     uint64_t ExitFunctionLink {};
+    uint64_t MonoBackpatcherWrite {};
 
     // Handles returning/calling ARM64EC code from the JIT, expects the target PC in TMP3
     uint64_t ExitFunctionEC {};

FEXCore/include/FEXCore/HLE/SyscallHandler.h

@@ -78,6 +78,7 @@ public:
     return OSABI;
   }
   virtual void MarkGuestExecutableRange(FEXCore::Core::InternalThreadState* Thread, uint64_t Start, uint64_t Length) {}
+  virtual void InvalidateGuestCodeRange(FEXCore::Core::InternalThreadState* Thread, uint64_t Start, uint64_t Length) {}
   virtual void MarkOvercommitRange(uint64_t Start, uint64_t Length) {}
   virtual void UnmarkOvercommitRange(uint64_t Start, uint64_t Length) {}
   virtual ExecutableRangeInfo QueryGuestExecutableRange(FEXCore::Core::InternalThreadState* Thread, uint64_t Address) = 0;