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-rw-r--r--src/core/arm/arm_interface.cpp17
-rw-r--r--src/core/arm/arm_interface.h1
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_32.cpp42
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_64.cpp28
-rw-r--r--src/core/cpu_manager.cpp4
-rw-r--r--src/core/hle/kernel/k_scheduler.h5
6 files changed, 72 insertions, 25 deletions
diff --git a/src/core/arm/arm_interface.cpp b/src/core/arm/arm_interface.cpp
index 8e095cdcd..0efc3732f 100644
--- a/src/core/arm/arm_interface.cpp
+++ b/src/core/arm/arm_interface.cpp
@@ -119,16 +119,23 @@ void ARM_Interface::Run() {
}
system.ExitDynarmicProfile();
- // Notify the debugger and go to sleep if a breakpoint was hit.
- if (Has(hr, breakpoint)) {
+ // Notify the debugger and go to sleep if a breakpoint was hit,
+ // or if the thread is unable to continue for any reason.
+ if (Has(hr, breakpoint) || Has(hr, no_execute)) {
RewindBreakpointInstruction();
- system.GetDebugger().NotifyThreadStopped(current_thread);
- current_thread->RequestSuspend(SuspendType::Debug);
+ if (system.DebuggerEnabled()) {
+ system.GetDebugger().NotifyThreadStopped(current_thread);
+ }
+ current_thread->RequestSuspend(Kernel::SuspendType::Debug);
break;
}
+
+ // Notify the debugger and go to sleep if a watchpoint was hit.
if (Has(hr, watchpoint)) {
RewindBreakpointInstruction();
- system.GetDebugger().NotifyThreadWatchpoint(current_thread, *HaltedWatchpoint());
+ if (system.DebuggerEnabled()) {
+ system.GetDebugger().NotifyThreadWatchpoint(current_thread, *HaltedWatchpoint());
+ }
current_thread->RequestSuspend(SuspendType::Debug);
break;
}
diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index 4e431e27a..8a066ed91 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -204,6 +204,7 @@ public:
static constexpr Dynarmic::HaltReason svc_call = Dynarmic::HaltReason::UserDefined3;
static constexpr Dynarmic::HaltReason breakpoint = Dynarmic::HaltReason::UserDefined4;
static constexpr Dynarmic::HaltReason watchpoint = Dynarmic::HaltReason::UserDefined5;
+ static constexpr Dynarmic::HaltReason no_execute = Dynarmic::HaltReason::UserDefined6;
protected:
/// System context that this ARM interface is running under.
diff --git a/src/core/arm/dynarmic/arm_dynarmic_32.cpp b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
index 8c90c8be0..10cf72a45 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_32.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
@@ -48,6 +48,12 @@ public:
CheckMemoryAccess(vaddr, 8, Kernel::DebugWatchpointType::Read);
return memory.Read64(vaddr);
}
+ std::optional<u32> MemoryReadCode(u32 vaddr) override {
+ if (!memory.IsValidVirtualAddressRange(vaddr, sizeof(u32))) {
+ return std::nullopt;
+ }
+ return MemoryRead32(vaddr);
+ }
void MemoryWrite8(u32 vaddr, u8 value) override {
if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
@@ -89,21 +95,28 @@ public:
void InterpreterFallback(u32 pc, std::size_t num_instructions) override {
parent.LogBacktrace();
- UNIMPLEMENTED_MSG("This should never happen, pc = {:08X}, code = {:08X}", pc,
- MemoryReadCode(pc));
+ LOG_ERROR(Core_ARM,
+ "Unimplemented instruction @ 0x{:X} for {} instructions (instr = {:08X})", pc,
+ num_instructions, MemoryRead32(pc));
}
void ExceptionRaised(u32 pc, Dynarmic::A32::Exception exception) override {
- if (debugger_enabled) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::breakpoint);
+ switch (exception) {
+ case Dynarmic::A32::Exception::NoExecuteFault:
+ LOG_CRITICAL(Core_ARM, "Cannot execute instruction at unmapped address {:#08x}", pc);
+ ReturnException(pc, ARM_Interface::no_execute);
return;
- }
+ default:
+ if (debugger_enabled) {
+ ReturnException(pc, ARM_Interface::breakpoint);
+ return;
+ }
- parent.LogBacktrace();
- LOG_CRITICAL(Core_ARM,
- "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X}, thumb = {})",
- exception, pc, MemoryReadCode(pc), parent.IsInThumbMode());
+ parent.LogBacktrace();
+ LOG_CRITICAL(Core_ARM,
+ "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X}, thumb = {})",
+ exception, pc, MemoryRead32(pc), parent.IsInThumbMode());
+ }
}
void CallSVC(u32 swi) override {
@@ -141,15 +154,20 @@ public:
const auto match{parent.MatchingWatchpoint(addr, size, type)};
if (match) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::watchpoint);
parent.halted_watchpoint = match;
+ ReturnException(parent.jit.load()->Regs()[15], ARM_Interface::watchpoint);
return false;
}
return true;
}
+ void ReturnException(u32 pc, Dynarmic::HaltReason hr) {
+ parent.SaveContext(parent.breakpoint_context);
+ parent.breakpoint_context.cpu_registers[15] = pc;
+ parent.jit.load()->HaltExecution(hr);
+ }
+
ARM_Dynarmic_32& parent;
Core::Memory::Memory& memory;
std::size_t num_interpreted_instructions{};
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.cpp b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
index 4370ca294..92266aa9e 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
@@ -52,6 +52,12 @@ public:
CheckMemoryAccess(vaddr, 16, Kernel::DebugWatchpointType::Read);
return {memory.Read64(vaddr), memory.Read64(vaddr + 8)};
}
+ std::optional<u32> MemoryReadCode(u64 vaddr) override {
+ if (!memory.IsValidVirtualAddressRange(vaddr, sizeof(u32))) {
+ return std::nullopt;
+ }
+ return MemoryRead32(vaddr);
+ }
void MemoryWrite8(u64 vaddr, u8 value) override {
if (CheckMemoryAccess(vaddr, 1, Kernel::DebugWatchpointType::Write)) {
@@ -105,7 +111,7 @@ public:
parent.LogBacktrace();
LOG_ERROR(Core_ARM,
"Unimplemented instruction @ 0x{:X} for {} instructions (instr = {:08X})", pc,
- num_instructions, MemoryReadCode(pc));
+ num_instructions, MemoryRead32(pc));
}
void InstructionCacheOperationRaised(Dynarmic::A64::InstructionCacheOperation op,
@@ -138,16 +144,19 @@ public:
case Dynarmic::A64::Exception::SendEventLocal:
case Dynarmic::A64::Exception::Yield:
return;
+ case Dynarmic::A64::Exception::NoExecuteFault:
+ LOG_CRITICAL(Core_ARM, "Cannot execute instruction at unmapped address {:#016x}", pc);
+ ReturnException(pc, ARM_Interface::no_execute);
+ return;
default:
if (debugger_enabled) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::breakpoint);
+ ReturnException(pc, ARM_Interface::breakpoint);
return;
}
parent.LogBacktrace();
- ASSERT_MSG(false, "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X})",
- static_cast<std::size_t>(exception), pc, MemoryReadCode(pc));
+ LOG_CRITICAL(Core_ARM, "ExceptionRaised(exception = {}, pc = {:08X}, code = {:08X})",
+ static_cast<std::size_t>(exception), pc, MemoryRead32(pc));
}
}
@@ -188,15 +197,20 @@ public:
const auto match{parent.MatchingWatchpoint(addr, size, type)};
if (match) {
- parent.SaveContext(parent.breakpoint_context);
- parent.jit.load()->HaltExecution(ARM_Interface::watchpoint);
parent.halted_watchpoint = match;
+ ReturnException(parent.jit.load()->GetPC(), ARM_Interface::watchpoint);
return false;
}
return true;
}
+ void ReturnException(u64 pc, Dynarmic::HaltReason hr) {
+ parent.SaveContext(parent.breakpoint_context);
+ parent.breakpoint_context.pc = pc;
+ parent.jit.load()->HaltExecution(hr);
+ }
+
ARM_Dynarmic_64& parent;
Core::Memory::Memory& memory;
u64 tpidrro_el0 = 0;
diff --git a/src/core/cpu_manager.cpp b/src/core/cpu_manager.cpp
index fd6928105..9fc78f033 100644
--- a/src/core/cpu_manager.cpp
+++ b/src/core/cpu_manager.cpp
@@ -194,7 +194,9 @@ void CpuManager::PreemptSingleCore(bool from_running_enviroment) {
{
auto& scheduler = system.Kernel().Scheduler(current_core);
scheduler.Reload(scheduler.GetSchedulerCurrentThread());
- idle_count = 0;
+ if (!scheduler.IsIdle()) {
+ idle_count = 0;
+ }
}
}
diff --git a/src/core/hle/kernel/k_scheduler.h b/src/core/hle/kernel/k_scheduler.h
index 3f90656ee..cc3da33f5 100644
--- a/src/core/hle/kernel/k_scheduler.h
+++ b/src/core/hle/kernel/k_scheduler.h
@@ -55,6 +55,11 @@ public:
return idle_thread;
}
+ /// Returns true if the scheduler is idle
+ [[nodiscard]] bool IsIdle() const {
+ return GetSchedulerCurrentThread() == idle_thread;
+ }
+
/// Gets the timestamp for the last context switch in ticks.
[[nodiscard]] u64 GetLastContextSwitchTicks() const;
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 08:50:10 +0100