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IL2CPP: Make various initialization pointers available in properties

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This commit is contained in:
Katy Coe
2020-02-05 06:12:53 +01:00
parent b8abfee54f
commit a3ff845727
2 changed files with 15 additions and 5 deletions
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16
Il2CppInspector/IL2CPP/Il2CppBinary.cs
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@@ -20,6 +20,12 @@ namespace Il2CppInspector
public Il2CppCodeRegistration CodeRegistration { get; protected set; }
public Il2CppMetadataRegistration MetadataRegistration { get; protected set; }
// Information for disassembly reverse engineering
public ulong CodeRegistrationPointer { get; private set; }
public ulong MetadataRegistrationPointer { get; private set; }
public ulong RegistrationFunctionPointer { get; private set; }
public ulong[] CodeGenModulePointers { get; private set; }
// Only for <=v24.1
public ulong[] GlobalMethodPointers { get; set; }
@@ -139,7 +145,8 @@ namespace Il2CppInspector
if (loc != 0) {
var (code, metadata) = ConsiderCode(subImage, loc);
if (code != 0) {
Console.WriteLine("Required structures acquired from code heuristics. Initialization function: 0x{0:X16}", loc + subImage.GlobalOffset);
RegistrationFunctionPointer = loc + subImage.GlobalOffset;
Console.WriteLine("Required structures acquired from code heuristics. Initialization function: 0x{0:X16}", RegistrationFunctionPointer);
Configure(subImage, code, metadata);
return true;
}
@@ -150,7 +157,10 @@ namespace Il2CppInspector
}
private void Configure(IFileFormatReader image, ulong codeRegistration, ulong metadataRegistration) {
// Output locations
// Store locations
CodeRegistrationPointer = codeRegistration;
MetadataRegistrationPointer = metadataRegistration;
Console.WriteLine("CodeRegistration struct found at 0x{0:X16} (file offset 0x{1:X8})", image.Bits == 32 ? codeRegistration & 0xffff_ffff : codeRegistration, image.MapVATR(codeRegistration));
Console.WriteLine("MetadataRegistration struct found at 0x{0:X16} (file offset 0x{1:X8})", image.Bits == 32 ? metadataRegistration & 0xffff_ffff : metadataRegistration, image.MapVATR(metadataRegistration));
@@ -173,6 +183,7 @@ namespace Il2CppInspector
Modules = new Dictionary<string, Il2CppCodeGenModule>();
// Array of pointers to Il2CppCodeGenModule
CodeGenModulePointers = image.ReadMappedArray<ulong>(CodeRegistration.pcodeGenModules, (int) CodeRegistration.codeGenModulesCount);
var modules = image.ReadMappedObjectPointerArray<Il2CppCodeGenModule>(CodeRegistration.pcodeGenModules, (int) CodeRegistration.codeGenModulesCount);
foreach (var module in modules) {
@@ -233,7 +244,6 @@ namespace Il2CppInspector
GenericInstances = image.ReadMappedObjectPointerArray<Il2CppGenericInst>(MetadataRegistration.genericInsts, (int) MetadataRegistration.genericInstsCount);
// Concrete generic method pointers
// TODO: Invoker pointers in tableEntry.indices.invokerIndex
var genericMethodPointers = image.ReadMappedArray<ulong>(CodeRegistration.genericMethodPointers, (int) CodeRegistration.genericMethodPointersCount);
var genericMethodTable = image.ReadMappedArray<Il2CppGenericMethodFunctionsDefinitions>(MetadataRegistration.genericMethodTable, (int) MetadataRegistration.genericMethodTableCount);
foreach (var tableEntry in genericMethodTable) {

4
Il2CppInspector/IL2CPP/Il2CppInspector.cs
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@@ -16,8 +16,8 @@ namespace Il2CppInspector
// Il2CppInspector ties together the binary and metadata files into a congruent API surface
public class Il2CppInspector
{
private Il2CppBinary Binary { get; }
private Metadata Metadata { get; }
public Il2CppBinary Binary { get; }
public Metadata Metadata { get; }
// All function pointers including attribute initialization functions etc. (start => end)
public Dictionary<ulong, ulong> FunctionAddresses { get; }