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IL2CPP: Add Binary.GetAPIExports()

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This commit is contained in:
Katy Coe
2020-07-20 17:09:19 +02:00
parent 8cd2d4ff4a
commit ccb401bb12
2 changed files with 24 additions and 4 deletions
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22
Il2CppInspector.Common/IL2CPP/Il2CppBinary.cs
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@@ -1,6 +1,6 @@
/* /*
Copyright 2017 Perfare - https://github.com/Perfare/Il2CppDumper Copyright 2017 Perfare - https://github.com/Perfare/Il2CppDumper
Copyright 2017-2020 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com Copyright 2017-2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
All rights reserved. All rights reserved.
*/ */
@@ -10,6 +10,7 @@ using System.Collections.Generic;
using System.Diagnostics; using System.Diagnostics;
using System.Linq; using System.Linq;
using System.Reflection; using System.Reflection;
using System.Text.RegularExpressions;
namespace Il2CppInspector namespace Il2CppInspector
{ {
@@ -266,5 +267,24 @@ namespace Il2CppInspector
GenericMethodInvokerIndices.Add(MethodSpecs[tableEntry.genericMethodIndex], tableEntry.indices.invokerIndex); GenericMethodInvokerIndices.Add(MethodSpecs[tableEntry.genericMethodIndex], tableEntry.indices.invokerIndex);
} }
} }
// IL2CPP API exports
// This strips leading underscores and selects only il2cpp_* symbols which can be mapped into the binary
// (therefore ignoring extern imports)
public Dictionary<string, ulong> GetAPIExports() {
var exports = Image.GetExports()?.Where(e => e.Name.StartsWith("il2cpp_") || e.Name.StartsWith("_il2cpp_") || e.Name.StartsWith("__il2cpp_"));
if (exports == null)
return new Dictionary<string, ulong>();
var exportRgx = new Regex(@"^_+");
var il2cppExports = new Dictionary<string, ulong>();
foreach (var export in exports)
if (Image.TryMapVATR(export.VirtualAddress, out _))
il2cppExports.Add(exportRgx.Replace(export.Name, ""), export.VirtualAddress);
return il2cppExports;
}
} }
} }

6
Il2CppInspector.Common/Outputs/CppScaffolding.cs
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@@ -59,11 +59,11 @@ namespace Il2CppInspector.Outputs
writeHeader(); writeHeader();
writeSectionHeader("IL2CPP API function pointers"); writeSectionHeader("IL2CPP API function pointers");
var exports = model.Exports.Where(e => e.Name.StartsWith("il2cpp_") || e.Name.StartsWith("_il2cpp_") || e.Name.StartsWith("__il2cpp_")); // TODO: Use model.APIExports instead once it is implemented
var exportRgx = new Regex(@"^_+"); var exports = model.Package.Binary.GetAPIExports();
foreach (var export in exports) { foreach (var export in exports) {
writeCode($"#define {exportRgx.Replace(export.Name, "")}_ptr 0x{model.Package.BinaryImage.MapVATR(export.VirtualAddress):X8}"); writeCode($"#define {export.Key}_ptr 0x{model.Package.BinaryImage.MapVATR(export.Value):X8}");
} }
writer.Close(); writer.Close();