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IL2CPP: Reconstruct CustomAttributesGenerators for metadata v27

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This commit is contained in:
Katy Coe
2020-08-16 00:06:36 +02:00
parent abac509fbd
commit 641f502ab8
2 changed files with 21 additions and 4 deletions
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3
Il2CppInspector.Common/IL2CPP/Il2CppBinary.cs
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@@ -48,6 +48,7 @@ namespace Il2CppInspector
public long[] FieldOffsetPointers { get; private set; }
// Generated functions which call constructors on custom attributes
// Only for <=24.3
public ulong[] CustomAttributeGenerators { get; private set; }
// IL2CPP-generated functions which implement MethodBase.Invoke with a unique signature per invoker, defined in Il2CppInvokerTable.cpp
@@ -267,7 +268,7 @@ namespace Il2CppInspector
TypeReferences = Image.ReadMappedObjectPointerArray<Il2CppType>(MetadataRegistration.ptypes, (int) MetadataRegistration.typesCount);
// Custom attribute constructors (function pointers)
// TODO: Custom attribute generator load is broken in metadata v27 - this was moved to Il2CppCodeGenModule
// This is managed in Il2CppInspector for metadata >= 27
if (Image.Version < 27) {
CustomAttributeGenerators = Image.ReadMappedArray<ulong>(CodeRegistration.customAttributeGenerators, (int) CodeRegistration.customAttributeCount);
}

22
Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs
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@@ -59,7 +59,7 @@ namespace Il2CppInspector
public Dictionary<ulong, int> TypeReferenceIndicesByAddress => Binary.TypeReferenceIndicesByAddress;
public List<Il2CppGenericInst> GenericInstances => Binary.GenericInstances;
public Dictionary<string, Il2CppCodeGenModule> Modules => Binary.Modules;
public ulong[] CustomAttributeGenerators => Binary.CustomAttributeGenerators;
public ulong[] CustomAttributeGenerators { get; }
public ulong[] MethodInvokePointers => Binary.MethodInvokePointers;
public Il2CppMethodSpec[] MethodSpecs => Binary.MethodSpecs;
public Dictionary<Il2CppMethodSpec, ulong> GenericMethodPointers => Binary.GenericMethodPointers;
@@ -193,10 +193,26 @@ namespace Il2CppInspector
FieldOffsets = offsets.OrderBy(x => x.Key).Select(x => x.Value).ToList();
}
// Build list of custom attribute generators
if (Version < 27)
CustomAttributeGenerators = Binary.CustomAttributeGenerators;
else {
var cagCount = Images.Sum(i => i.customAttributeCount);
CustomAttributeGenerators = new ulong[cagCount];
foreach (var image in Images) {
// Get CodeGenModule for this image
var codeGenModule = Binary.Modules[Strings[image.nameIndex]];
var cags = BinaryImage.ReadMappedWordArray(codeGenModule.customAttributeCacheGenerator, (int) image.customAttributeCount);
cags.CopyTo(CustomAttributeGenerators, image.customAttributeStart);
}
}
// Get sorted list of function pointers from all sources
var sortedFunctionPointers = (Version <= 24.1)?
Binary.GlobalMethodPointers.ToList() :
Binary.ModuleMethodPointers.SelectMany(module => module.Value).ToList();
Binary.GlobalMethodPointers.ToList() :
Binary.ModuleMethodPointers.SelectMany(module => module.Value).ToList();
sortedFunctionPointers.AddRange(CustomAttributeGenerators);
sortedFunctionPointers.AddRange(MethodInvokePointers);