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Correctly process 64-bit data structures in IL2CPP binaries

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This commit is contained in:
Katy Coe
2019-10-23 03:37:01 +02:00
parent 79b62e2566
commit 7e3777dddd
7 changed files with 94 additions and 85 deletions
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16
Il2CppInspector/Il2CppBinary.cs
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@@ -21,13 +21,13 @@ namespace Il2CppInspector
public Il2CppMetadataRegistration MetadataRegistration { get; protected set; }
// Only for <=v24.1
public uint[] GlobalMethodPointers { get; set; }
public ulong[] GlobalMethodPointers { get; set; }
// NOTE: In versions <21 and earlier releases of v21, this array has the format:
// global field index => field offset
// In versions >=22 and later releases of v21, this array has the format:
// type index => RVA in image where the list of field offsets for the type start (4 bytes per field)
public int[] FieldOffsetData { get; private set; }
public long[] FieldOffsetData { get; private set; }
// Every defined type
public List<Il2CppType> Types { get; private set; }
@@ -117,13 +117,19 @@ namespace Il2CppInspector
}
private void Configure(IFileFormatReader image, ulong codeRegistration, ulong metadataRegistration) {
// Set width of long (convert to sizeof(int) for 32-bit files)
if (image.Bits == 32) {
image.Stream.PrimitiveMappings.Add(typeof(long), typeof(int));
image.Stream.PrimitiveMappings.Add(typeof(ulong), typeof(uint));
}
// Root structures from which we find everything else
CodeRegistration = image.ReadMappedObject<Il2CppCodeRegistration>(codeRegistration);
MetadataRegistration = image.ReadMappedObject<Il2CppMetadataRegistration>(metadataRegistration);
// The global method pointer list was deprecated in v24.2 in favour of Il2CppCodeGenModule
if (Image.Stream.Version <= 24.1)
GlobalMethodPointers = image.ReadMappedArray<uint>(CodeRegistration.pmethodPointers, (int) CodeRegistration.methodPointersCount);
GlobalMethodPointers = image.ReadMappedArray<ulong>(CodeRegistration.pmethodPointers, (int) CodeRegistration.methodPointersCount);
// After v24 method pointers and RGCTX data were stored in Il2CppCodeGenModules
if (Image.Stream.Version >= 24.2) {
@@ -139,10 +145,10 @@ namespace Il2CppInspector
}
// Field offset data. Metadata <=21.x uses a value-type array; >=21.x uses a pointer array
FieldOffsetData = image.ReadMappedArray<int>(MetadataRegistration.pfieldOffsets, MetadataRegistration.fieldOffsetsCount);
FieldOffsetData = image.ReadMappedArray<long>(MetadataRegistration.pfieldOffsets, (int) MetadataRegistration.fieldOffsetsCount);
// Type definitions (pointer array)
Types = image.ReadMappedObjectPointerArray<Il2CppType>(MetadataRegistration.ptypes, MetadataRegistration.typesCount);
Types = image.ReadMappedObjectPointerArray<Il2CppType>(MetadataRegistration.ptypes, (int) MetadataRegistration.typesCount);
}
}
}