From 989d4a7a41f449af0ea09e34bee331a3a3ac8170 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Tue, 31 May 2022 14:37:37 -0400
Subject: core/debugger: Improved stepping mechanism and misc fixes
---
src/core/arm/arm_interface.cpp | 45 ++++++++++++++++++++++++++++++++++++++++--
1 file changed, 43 insertions(+), 2 deletions(-)
(limited to 'src/core/arm/arm_interface.cpp')
diff --git a/src/core/arm/arm_interface.cpp b/src/core/arm/arm_interface.cpp
index 1310f72bf9..9b5a5ca576 100644
--- a/src/core/arm/arm_interface.cpp
+++ b/src/core/arm/arm_interface.cpp
@@ -11,6 +11,7 @@
#include "core/core.h"
#include "core/debugger/debugger.h"
#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/svc.h"
#include "core/loader/loader.h"
#include "core/memory.h"
@@ -89,8 +90,48 @@ void ARM_Interface::LogBacktrace() const {
}
}
-bool ARM_Interface::ShouldStep() const {
- return system.DebuggerEnabled() && system.GetDebugger().IsStepping();
+void ARM_Interface::Run() {
+ using Kernel::StepState;
+ using Kernel::SuspendType;
+
+ while (true) {
+ Kernel::KThread* current_thread{system.Kernel().CurrentScheduler()->GetCurrentThread()};
+ Dynarmic::HaltReason hr{};
+
+ // Notify the debugger and go to sleep if a step was performed
+ // and this thread has been scheduled again.
+ if (current_thread->GetStepState() == StepState::StepPerformed) {
+ system.GetDebugger().NotifyThreadStopped(current_thread);
+ current_thread->RequestSuspend(SuspendType::Debug);
+ break;
+ }
+
+ // Otherwise, run the thread.
+ if (current_thread->GetStepState() == StepState::StepPending) {
+ hr = StepJit();
+
+ if (Has(hr, step_thread)) {
+ current_thread->SetStepState(StepState::StepPerformed);
+ }
+ } else {
+ hr = RunJit();
+ }
+
+ // Notify the debugger and go to sleep if a breakpoint was hit.
+ if (Has(hr, breakpoint)) {
+ system.GetDebugger().NotifyThreadStopped(current_thread);
+ current_thread->RequestSuspend(Kernel::SuspendType::Debug);
+ break;
+ }
+
+ // Handle syscalls and scheduling (this may change the current thread)
+ if (Has(hr, svc_call)) {
+ Kernel::Svc::Call(system, GetSvcNumber());
+ }
+ if (Has(hr, break_loop) || !uses_wall_clock) {
+ break;
+ }
+ }
}
} // namespace Core
--
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