2 files changed, 23 insertions, 7 deletions

diff --git a/src/core/gdbstub/gdbstub.cpp b/src/core/gdbstub/gdbstub.cpp
index 67e95999d..6d15aeed9 100644
--- a/src/core/gdbstub/gdbstub.cpp
+++ b/src/core/gdbstub/gdbstub.cpp
@@ -141,6 +141,7 @@ constexpr char target_xml[] =
 )";
 
 int gdbserver_socket = -1;
+bool defer_start = false;
 
 u8 command_buffer[GDB_BUFFER_SIZE];
 u32 command_length;
@@ -217,7 +218,7 @@ static u64 RegRead(std::size_t id, Kernel::Thread* thread = nullptr) {
         return 0;
     }
 
-    const auto& thread_context = thread->GetContext();
+    const auto& thread_context = thread->GetContext64();
 
     if (id < SP_REGISTER) {
         return thread_context.cpu_registers[id];
@@ -239,7 +240,7 @@ static void RegWrite(std::size_t id, u64 val, Kernel::Thread* thread = nullptr)
         return;
     }
 
-    auto& thread_context = thread->GetContext();
+    auto& thread_context = thread->GetContext64();
 
     if (id < SP_REGISTER) {
         thread_context.cpu_registers[id] = val;
@@ -259,7 +260,7 @@ static u128 FpuRead(std::size_t id, Kernel::Thread* thread = nullptr) {
         return u128{0};
     }
 
-    auto& thread_context = thread->GetContext();
+    auto& thread_context = thread->GetContext64();
 
     if (id >= UC_ARM64_REG_Q0 && id < FPCR_REGISTER) {
         return thread_context.vector_registers[id - UC_ARM64_REG_Q0];
@@ -275,7 +276,7 @@ static void FpuWrite(std::size_t id, u128 val, Kernel::Thread* thread = nullptr)
         return;
     }
 
-    auto& thread_context = thread->GetContext();
+    auto& thread_context = thread->GetContext64();
 
     if (id >= UC_ARM64_REG_Q0 && id < FPCR_REGISTER) {
         thread_context.vector_registers[id - UC_ARM64_REG_Q0] = val;
@@ -916,7 +917,7 @@ static void WriteRegister() {
     // Update ARM context, skipping scheduler - no running threads at this point
     Core::System::GetInstance()
         .ArmInterface(current_core)
-        .LoadContext(current_thread->GetContext());
+        .LoadContext(current_thread->GetContext64());
 
     SendReply("OK");
 }
@@ -947,7 +948,7 @@ static void WriteRegisters() {
     // Update ARM context, skipping scheduler - no running threads at this point
     Core::System::GetInstance()
         .ArmInterface(current_core)
-        .LoadContext(current_thread->GetContext());
+        .LoadContext(current_thread->GetContext64());
 
     SendReply("OK");
 }
@@ -1019,7 +1020,7 @@ static void Step() {
         // Update ARM context, skipping scheduler - no running threads at this point
         Core::System::GetInstance()
             .ArmInterface(current_core)
-            .LoadContext(current_thread->GetContext());
+            .LoadContext(current_thread->GetContext64());
     }
     step_loop = true;
     halt_loop = true;
@@ -1166,6 +1167,9 @@ static void RemoveBreakpoint() {
 
 void HandlePacket() {
     if (!IsConnected()) {
+        if (defer_start) {
+            ToggleServer(true);
+        }
         return;
     }
 
@@ -1256,6 +1260,10 @@ void ToggleServer(bool status) {
     }
 }
 
+void DeferStart() {
+    defer_start = true;
+}
+
 static void Init(u16 port) {
     if (!server_enabled) {
         // Set the halt loop to false in case the user enabled the gdbstub mid-execution.
@@ -1341,6 +1349,7 @@ void Shutdown() {
     if (!server_enabled) {
         return;
     }
+    defer_start = false;
 
     LOG_INFO(Debug_GDBStub, "Stopping GDB ...");
     if (gdbserver_socket != -1) {
diff --git a/src/core/gdbstub/gdbstub.h b/src/core/gdbstub/gdbstub.h
index 5a36524b2..8fe3c320b 100644
--- a/src/core/gdbstub/gdbstub.h
+++ b/src/core/gdbstub/gdbstub.h
@@ -43,6 +43,13 @@ void ToggleServer(bool status);
 /// Start the gdbstub server.
 void Init();
 
+/**
+ * Defer initialization of the gdbstub to the first packet processing functions.
+ * This avoids a case where the gdbstub thread is frozen after initialization
+ * and fails to respond in time to packets.
+ */
+void DeferStart();
+
 /// Stop gdbstub server.
 void Shutdown();