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Model: Add GetMethodBody() to CustomAttributeData and MethodInvoker

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This commit is contained in:
Katy Coe
2020-08-09 20:53:10 +02:00
parent 010bec7dc0
commit a252800052
3 changed files with 13 additions and 5 deletions
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12
Il2CppInspector.Common/Reflection/MethodInvoker.cs
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@@ -20,6 +20,9 @@ namespace Il2CppInspector.Reflection
// IL2CPP invoker index
public int Index { get; }
// IL2CPP package
public Il2CppInspector Package { get; }
// Virtual address of the invoker function
public (ulong Start, ulong End) VirtualAddress { get; }
@@ -35,7 +38,7 @@ namespace Il2CppInspector.Reflection
// Find the correct method invoker for a method with a specific signature
public MethodInvoker(MethodBase exampleMethod, int index) {
var model = exampleMethod.Assembly.Model;
var package = exampleMethod.Assembly.Model.Package;
Package = exampleMethod.Assembly.Model.Package;
Index = index;
IsStatic = exampleMethod.IsStatic;
@@ -43,8 +46,8 @@ namespace Il2CppInspector.Reflection
ReturnType = exampleMethod.IsConstructor ? model.TypesByFullName["System.Void"] : mapParameterType(model, ((MethodInfo) exampleMethod).ReturnType);
ParameterTypes = exampleMethod.DeclaredParameters.Select(p => mapParameterType(model, p.ParameterType)).ToArray();
var start = package.MethodInvokePointers[Index];
VirtualAddress = (start & 0xffff_ffff_ffff_fffe, package.FunctionAddresses[start]);
var start = Package.MethodInvokePointers[Index];
VirtualAddress = (start & 0xffff_ffff_ffff_fffe, Package.FunctionAddresses[start]);
}
// The invokers use Object for all reference types, and SByte for booleans
@@ -54,6 +57,9 @@ namespace Il2CppInspector.Reflection
_ => type
};
// Get the machine code of the C++ function
public byte[] GetMethodBody() => Package.BinaryImage.ReadMappedBytes(VirtualAddress.Start, (int) (VirtualAddress.End - VirtualAddress.Start));
public string Name => $"RuntimeInvoker_{!IsStatic}{ReturnType.BaseName.ToCIdentifier()}_" + string.Join("_", ParameterTypes.Select(p => p.BaseName.ToCIdentifier()));
// Display as a C++ method signature; MethodInfo* is the same as RuntimeMethod* (see codegen/il2cpp-codegen-metadata.h)