Implement a new JIT for Arm devices (#6057)

* Implement a new JIT for Arm devices

* Auto-format

* Make a lot of Assembler members read-only

* More read-only

* Fix more warnings

* ObjectDisposedException.ThrowIf

* New JIT cache for platforms that enforce W^X, currently unused

* Remove unused using

* Fix assert

* Pass memory manager type around

* Safe memory manager mode support + other improvements

* Actual safe memory manager mode masking support

* PR feedback

1 files changed, 30 insertions, 0 deletions

diff --git a/src/Ryujinx.Cpu/LightningJit/CodeGen/Arm64/StackWalker.cs b/src/Ryujinx.Cpu/LightningJit/CodeGen/Arm64/StackWalker.cs
new file mode 100644
index 00000000..3b01e674
--- /dev/null
+++ b/src/Ryujinx.Cpu/LightningJit/CodeGen/Arm64/StackWalker.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Cpu.LightningJit.CodeGen.Arm64
+{
+    class StackWalker : IStackWalker
+    {
+        public IEnumerable<ulong> GetCallStack(IntPtr framePointer, IntPtr codeRegionStart, int codeRegionSize, IntPtr codeRegion2Start, int codeRegion2Size)
+        {
+            List<ulong> functionPointers = new();
+
+            while (true)
+            {
+                IntPtr functionPointer = Marshal.ReadIntPtr(framePointer, IntPtr.Size);
+
+                if ((functionPointer < codeRegionStart || functionPointer >= codeRegionStart + codeRegionSize) &&
+                    (functionPointer < codeRegion2Start || functionPointer >= codeRegion2Start + codeRegion2Size))
+                {
+                    break;
+                }
+
+                functionPointers.Add((ulong)functionPointer - 4);
+                framePointer = Marshal.ReadIntPtr(framePointer);
+            }
+
+            return functionPointers;
+        }
+    }
+}