Add Fat Mach-O (Universal Binary) support

Fix fieldOffsets bug in some metadata versions Add support for generic multi-architecture binaries Add Mach-O section RVA mapping
2017-10-23 12:35:59 +02:00
parent fef4d3d8f3
commit 16b56e271b
9 changed files with 218 additions and 82 deletions
--- a/Il2CppInspector/UBReader.cs
+++ b/Il2CppInspector/UBReader.cs
@@ -0,0 +1,47 @@
+/*
+    Copyright 2017 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
+
+    All rights reserved.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using NoisyCowStudios.Bin2Object;
+
+namespace Il2CppInspector
+{
+    internal class UBReader : FileFormatReader<UBReader>
+    {
+        private FatHeader header;
+
+        public UBReader(Stream stream) : base(stream) { }
+
+        protected override bool Init() {
+            // Fat headers are always big-endian regardless of architectures
+            Endianness = Endianness.Big;
+
+            header = ReadObject<FatHeader>();
+
+            if ((UB) header.Magic != UB.FAT_MAGIC)
+                return false;
+
+            NumImages = header.NumArch;
+            return true;
+        }
+
+        public override IFileFormatReader this[uint index] {
+            get {
+                Position = 0x8 + 0x14 * index; // sizeof(FatHeader), sizeof(FatArch)
+                Endianness = Endianness.Big;
+
+                var arch = ReadObject<FatArch>();
+
+                Position = arch.Offset;
+                Endianness = Endianness.Little;
+                return MachOReader.Load(new MemoryStream(ReadBytes((int)arch.Size)));
+            }
+        }
+    }
+}