chizui/Il2CppInspectorRedux
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rework code registration offsetting a bit and add second 29/31.1 condition

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This commit is contained in:
LukeFZ
2024-08-24 22:55:35 +02:00
parent 5d827fe881
commit e6c51b47d6
1 changed files with 9 additions and 7 deletions
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16
Il2CppInspector.Common/IL2CPP/ImageScan.cs
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@@ -206,9 +206,9 @@ namespace Il2CppInspector
return (0, 0);
var codeGenEndPtr = codeRegVa + ptrSize;
// pCodeGenModules is the last field in CodeRegistration so we subtract the size of one pointer from the struct size
var codeRegSize = (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
codeRegistration = codeRegVa - codeRegSize - ptrSize;
codeRegistration = codeGenEndPtr - (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
// In v24.3, windowsRuntimeFactoryTable collides with codeGenModules. So far no samples have had windowsRuntimeFactoryCount > 0;
// if this changes we'll have to get smarter about disambiguating these two.
@@ -216,7 +216,7 @@ namespace Il2CppInspector
if (Image.Version == MetadataVersions.V242 && cr.InteropDataCount == 0) {
Image.Version = MetadataVersions.V243;
codeRegistration -= ptrSize * 2; // two extra words for WindowsRuntimeFactory
codeRegistration = codeGenEndPtr - (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
}
if (Image.Version == MetadataVersions.V270 && cr.ReversePInvokeWrapperCount > 0x30000)
@@ -224,7 +224,8 @@ namespace Il2CppInspector
// If reversePInvokeWrapperCount is a pointer, then it's because we're actually on 27.1 and there's a genericAdjustorThunks pointer interfering.
// We need to bump version to 27.1 and back up one more pointer.
Image.Version = MetadataVersions.V271;
codeRegistration -= ptrSize;
codeRegistration = codeGenEndPtr - (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
cr = Image.ReadMappedVersionedObject<Il2CppCodeRegistration>(codeRegistration);
}
// genericAdjustorThunks was inserted before invokerPointersCount in 24.5 and 27.1
@@ -232,15 +233,16 @@ namespace Il2CppInspector
if (Image.Version == MetadataVersions.V244 && cr.InvokerPointersCount > 0x50000)
{
Image.Version = MetadataVersions.V245;
codeRegistration += 1 * ptrSize;
codeRegistration = codeGenEndPtr - (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
cr = Image.ReadMappedVersionedObject<Il2CppCodeRegistration>(codeRegistration);
}
if ((Image.Version == MetadataVersions.V290 || Image.Version == MetadataVersions.V310) &&
cr.InteropData + cr.InteropDataCount >= (ulong)Image.Length)
(!Image.TryMapVATR(cr.InvokerPointers + cr.InvokerPointersCount, out _) ||
!Image.TryMapVATR(cr.GenericMethodPointers + cr.GenericMethodPointersCount, out _)))
{
Image.Version = new StructVersion(Image.Version.Major, 0, MetadataVersions.Tag2022);
cr = Image.ReadMappedVersionedObject<Il2CppCodeRegistration>(codeRegistration);
codeRegistration = codeGenEndPtr - (ulong)Il2CppCodeRegistration.Size(Image.Version, Image.Bits == 32);
}
}