Kernel: Add cross platform RegisterState header and Aarch64 version

A new RegisterState header includes the platform specific RegisterState
header based on the platform being compiled.

The Aarch64 RegisterState header contains stubs for Debug

Kernel/Arch/RegisterState.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018-2021, James Mintram <me@jamesrm.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Platform.h>
+
+#if ARCH(X86_64) || ARCH(I386)
+#    include <Kernel/Arch/x86/RegisterState.h>
+#elif ARCH(AARCH64)
+#    include <Kernel/Arch/aarch64/RegisterState.h>
+#else
+#    error "Unknown architecture"
+#endif

Kernel/Arch/aarch64/RegisterState.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2018-2021, James Mintram <me@jamesrm.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+struct DebugRegisterState {
+};

Kernel/Arch/x86/common/Interrupts.cpp

@@ -22,8 +22,8 @@
 #include <LibC/mallocdefs.h>
 
 #include <Kernel/Arch/Processor.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/Arch/x86/ISRStubs.h>
-#include <Kernel/Arch/x86/RegisterState.h>
 #include <Kernel/Arch/x86/TrapFrame.h>
 #include <Kernel/KSyms.h>
 

Kernel/Arch/x86/common/SafeMem.cpp

@@ -5,7 +5,7 @@
  */
 
 #include <Kernel/Arch/Processor.h>
-#include <Kernel/Arch/x86/RegisterState.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/Arch/x86/SafeMem.h>
 
 #define CODE_SECTION(section_name) __attribute__((section(section_name)))

Kernel/Devices/DeviceManagement.h

@@ -14,7 +14,7 @@
 #include <AK/Types.h>
 #include <Kernel/API/KResult.h>
 #include <Kernel/API/TimePage.h>
-#include <Kernel/Arch/x86/RegisterState.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/Devices/ConsoleDevice.h>
 #include <Kernel/Devices/Device.h>
 #include <Kernel/Devices/NullDevice.h>

Kernel/Interrupts/GenericInterruptHandler.h

@@ -8,7 +8,7 @@
 
 #include <AK/IntrusiveList.h>
 #include <AK/Types.h>
-#include <Kernel/Arch/x86/RegisterState.h>
+#include <Kernel/Arch/RegisterState.h>
 
 namespace Kernel {
 

Kernel/PerformanceEventBuffer.cpp

@@ -7,8 +7,8 @@
 #include <AK/JsonArraySerializer.h>
 #include <AK/JsonObjectSerializer.h>
 #include <AK/ScopeGuard.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/Arch/SmapDisabler.h>
-#include <Kernel/Arch/x86/RegisterState.h>
 #include <Kernel/FileSystem/Custody.h>
 #include <Kernel/KBufferBuilder.h>
 #include <Kernel/PerformanceEventBuffer.h>

Kernel/ThreadTracer.cpp

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <Kernel/Arch/x86/RegisterState.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/ThreadTracer.h>
 
 namespace Kernel {

Kernel/Time/TimeManagement.h

@@ -13,7 +13,7 @@
 #include <AK/Types.h>
 #include <Kernel/API/KResult.h>
 #include <Kernel/API/TimePage.h>
-#include <Kernel/Arch/x86/RegisterState.h>
+#include <Kernel/Arch/RegisterState.h>
 #include <Kernel/UnixTypes.h>
 
 namespace Kernel {