FEXCore: Refactor ExitHandler slightly

Instead of passing the TID back to the exit handler, just pass the whole
thread object. This will allow some cleanups with the frontend thread
tracking soon

NFC

FEXCore/Source/Interface/Core/Core.cpp

@@ -937,7 +937,7 @@ void ContextImpl::ExecutionThread(FEXCore::Core::InternalThreadState* Thread) {
     Thread->ExitReason = FEXCore::Context::ExitReason::EXIT_SHUTDOWN;
 
     if (CustomExitHandler) {
-      CustomExitHandler(Thread->ThreadManager.TID, Thread->ExitReason);
+      CustomExitHandler(Thread, Thread->ExitReason);
     }
   }
 

FEXCore/include/FEXCore/Core/Context.h

@@ -102,7 +102,7 @@ using CodeRangeInvalidationFn = std::function<void(uint64_t start, uint64_t Leng
 using CustomCPUFactoryType = std::function<fextl::unique_ptr<CPU::CPUBackend>(Context*, Core::InternalThreadState* Thread)>;
 using CustomIREntrypointHandler = std::function<void(uintptr_t Entrypoint, IR::IREmitter*)>;
 
-using ExitHandler = std::function<void(uint64_t ThreadId, ExitReason)>;
+using ExitHandler = std::function<void(Core::InternalThreadState* Thread, ExitReason)>;
 
 using AOTIRCodeFileWriterFn = std::function<void(const fextl::string& fileid, const fextl::string& filename)>;
 using AOTIRLoaderCBFn = std::function<int(const fextl::string&)>;

Source/Tools/FEXLoader/FEXLoader.cpp

@@ -515,7 +515,7 @@ int main(int argc, char** argv, char** const envp) {
 
   // There might already be an exit handler, leave it installed
   if (!CTX->GetExitHandler()) {
-    CTX->SetExitHandler([&](uint64_t thread, FEXCore::Context::ExitReason reason) {
+    CTX->SetExitHandler([&](FEXCore::Core::InternalThreadState* Thread, FEXCore::Context::ExitReason reason) {
       if (reason != FEXCore::Context::ExitReason::EXIT_DEBUG) {
         ShutdownReason = reason;
         SyscallHandler->TM.Stop();

Source/Tools/LinuxEmulation/LinuxSyscalls/GdbServer.cpp

@@ -121,7 +121,7 @@ GdbServer::GdbServer(FEXCore::Context::Context* ctx, FEX::HLE::SignalDelegator*
   // Pass all signals by default
   std::fill(PassSignals.begin(), PassSignals.end(), true);
 
-  ctx->SetExitHandler([this](uint64_t ThreadId, FEXCore::Context::ExitReason ExitReason) {
+  ctx->SetExitHandler([this](FEXCore::Core::InternalThreadState* Thread, FEXCore::Context::ExitReason ExitReason) {
     if (ExitReason == FEXCore::Context::ExitReason::EXIT_DEBUG) {
       this->Break(SIGTRAP);
     }