ELF: Rebase if requested even if image is not dumped (#119)

Il2CppInspector.CLI/Program.cs

@@ -176,7 +176,6 @@ namespace Il2CppInspector.CLI
 
             // Set load options
             var loadOptions = new LoadOptions {
-                ImageBase = 0xffffffff_ffffffff,
                 BinaryFilePath = options.BinaryFiles.First()
             };
 

Il2CppInspector.Common/FileFormatStreams/ElfReader.cs

@@ -201,9 +201,14 @@ namespace Il2CppInspector
 
             // Dumped images must be rebased
             if (isMemoryImage) {
-                if (LoadOptions.ImageBase == 0xffffffff_ffffffff)
+                if (LoadOptions.ImageBase == 0)
                     throw new InvalidOperationException("To load a dumped ELF image, you must specify the image base virtual address");
+            }
 
+            // Rebase if requested (whether dumped or not) and treat it as a memory image,
+            // disabling processing of relocations, symbols and decryption
+            if (LoadOptions.ImageBase != 0) {
+                isMemoryImage = true;
                 rebase(conv.FromULong(LoadOptions.ImageBase));
             }
             

Il2CppInspector.Common/FileFormatStreams/LoadOptions.cs

@@ -9,9 +9,9 @@ namespace Il2CppInspector
     // Modifiers for use when loading binary files
     public class LoadOptions
     {
-        // For dumped ELF files, the virtual address to which we should rebase - ignored for other file types
-        // Use 2^64-1 to prevent rebasing on a dumped file
-        public ulong ImageBase { get; set; }
+        // For ELF files, the virtual address to which we should rebase - ignored for other file types
+        // Use zero to prevent rebasing
+        public ulong ImageBase { get; set; } = 0ul;
 
         // For Linux process memory map inputs, we need the full path so we can find the .bin files
         // For packed PE files, we need the full path to reload the file via Win32 API

Il2CppInspector.GUI/App.xaml.cs

@@ -240,10 +240,7 @@ namespace Il2CppInspectorGUI
 
         // Reset image load options to their defaults
         public void ResetLoadOptions() {
-            ImageLoadOptions = new LoadOptions {
-                ImageBase = 0xffffffff_ffffffff,
-                BinaryFilePath = null
-            };
+            ImageLoadOptions = new LoadOptions();
         }
 
         // Attempt to load an IL2CPP application package (APK or IPA)

Il2CppInspector.GUI/LoadOptionsDialog.xaml

@@ -60,7 +60,7 @@
                 <TextBox.ToolTip>
                     <ToolTip Background="LightYellow">
                         <TextBlock>
-                            For ELF binaries that have been dumped from memory, specify the base address of the dump<LineBreak/>Ignored for normal ELF binaries
+                            For ELF binaries that have been dumped from memory, specify the base address of the dump<LineBreak/>Use zero to disable rebasing
                         </TextBlock>
                     </ToolTip>
                 </TextBox.ToolTip>