From d834b655ff0f03905927a9ce44f1a62af134c95b Mon Sep 17 00:00:00 2001
From: Benedikt Reinartz <filmor@gmail.com>
Date: Thu, 20 Jun 2019 17:32:53 +0200
Subject: [PATCH] Support ARM architectures again

---
 src/runtime/runtime.cs     |  4 ++++
 src/runtime/typemanager.cs | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/src/runtime/runtime.cs b/src/runtime/runtime.cs
index 7623200e0..294ecaf48 100644
--- a/src/runtime/runtime.cs
+++ b/src/runtime/runtime.cs
@@ -229,6 +229,8 @@ public enum MachineType
         {
             i386,
             x86_64,
+            armv7l,
+            armv8,
             Other
         };
 
@@ -247,6 +249,8 @@ public enum MachineType
             ["amd64"] = MachineType.x86_64,
             ["x64"] = MachineType.x86_64,
             ["em64t"] = MachineType.x86_64,
+            ["armv7l"] = MachineType.armv7l,
+            ["armv8"] = MachineType.armv8,
         };
 
         /// <summary>
diff --git a/src/runtime/typemanager.cs b/src/runtime/typemanager.cs
index d19c8737f..a260e8dfa 100644
--- a/src/runtime/typemanager.cs
+++ b/src/runtime/typemanager.cs
@@ -510,6 +510,10 @@ public static NativeCode Active
                             return I386;
                         case Runtime.MachineType.x86_64:
                             return X86_64;
+                        case Runtime.MachineType.armv7l:
+                            return Armv7l;
+                        case Runtime.MachineType.armv8:
+                            return Armv8;
                         default:
                             throw new NotImplementedException($"No support for {Runtime.MachineName}");
                     }
@@ -546,6 +550,34 @@ public static NativeCode Active
             /// <see cref="NativeCode.X86_64"/>
             /// </summary>
             public static readonly NativeCode I386 = X86_64;
+
+            public static readonly NativeCode Armv7l = new NativeCode()
+            {
+                Return0 = 0,
+                Return1 = 0x08,
+                Code = new byte[]
+                {
+                    0xe3, 0xa0, 0x00, 0x00, // mov r0, #0
+                    0xe1, 0x2f, 0xff, 0x1e, // bx lr
+
+                    0xe3, 0xa0, 0x00, 0x01, // mov r0, #1
+                    0xe1, 0x2f, 0xff, 0x1e, // bx lr
+                }
+            };
+
+            public static readonly NativeCode Armv8 = new NativeCode()
+            {
+                Return0 = 0,
+                Return1 = 0x08,
+                Code = new byte[]
+                {
+                    0x52, 0x80, 0x00, 0x00, // mov w0, #0x0
+                    0xd6, 0x5f, 0x03, 0xc0, // ret
+
+                    0x52, 0x80, 0x00, 0x20, // mov w0, #0x1
+                    0xd6, 0x5f, 0x03, 0xc0, // ret
+                }
+            };
         }
 
         /// <summary>