chizui/Il2CppInspectorRedux
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Add header files for every known Unity version.

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We want to get types into the IDA output, and to do that we need
accurate types for the Il2Cpp structures. Unfortunately, some crucial
types like Il2CppClass change between versions without any corresponding
metadata changes, meaning that we have to manually identify the version
outside of the Inspector somehow (e.g. by looking at the version number
embedded in Unity asset files). This patch adds header files for *every*
known Unity version from 5.3.0 to 2019.3.8, merging them into version
ranges where header files don't change.

It also adds front-end support for supplying the version number in both
the CLI and GUI. The GUI is given the ability to guess the version
number approximately to reduce the number of choices presented to the
user.
This commit is contained in:
Robert Xiao
2020-04-14 02:09:39 -07:00
committed by Katy
parent b87d82fd11
commit 34f0d4ceef
32 changed files with 27176 additions and 9 deletions
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41
Il2CppInspector.Common/Outputs/IDAPythonScript.cs
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@@ -8,6 +8,7 @@ using System.Linq;
using System.IO;
using System.Text;
using Il2CppInspector.Reflection;
using Il2CppInspector.Outputs.UnityHeaders;
namespace Il2CppInspector.Outputs
{
@@ -15,16 +16,29 @@ namespace Il2CppInspector.Outputs
{
private readonly Il2CppModel model;
private StreamWriter writer;
public UnityVersion UnityVersion;
private UnityHeader header;
public IDAPythonScript(Il2CppModel model) => this.model = model;
public void WriteScriptToFile(string outputFile) {
if (UnityVersion == null) {
header = UnityHeader.GuessHeadersForModel(model)[0];
UnityVersion = header.MinVersion;
} else {
header = UnityHeader.GetHeaderForVersion(UnityVersion);
if (header.MetadataVersion != model.Package.BinaryImage.Version) {
/* this can only happen in the CLI frontend with a manually-supplied version number */
Console.WriteLine($"Warning: selected version {UnityVersion} (metadata version {header.MetadataVersion}) does not match metadata version {model.Package.BinaryImage.Version}.");
}
}
using var fs = new FileStream(outputFile, FileMode.Create);
writer = new StreamWriter(fs, Encoding.UTF8);
writeLine("# Generated script file by Il2CppInspector - http://www.djkaty.com - https://github.com/djkaty");
writeLine("# Target Unity version: " + header);
writeLine("print('Generated script file by Il2CppInspector - http://www.djkaty.com - https://github.com/djkaty')");
writeSectionHeader("Preamble");
writePreamble();
@@ -67,6 +81,21 @@ def MakeFunction(start, end):
ida_funcs.del_func(start)
ida_funcs.add_func(start, end)"
);
// Compatibility (in a separate decl block in case these are already defined)
writeDecls(@"
typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
typedef __int8 int8_t;
typedef __int16 int16_t;
typedef __int32 int32_t;
typedef __int64 int64_t;
");
var prefix = (model.Package.BinaryImage.Bits == 32) ? "#define IS_32BIT\n" : "";
writeDecls(prefix + header.GetHeaderText());
}
private void writeMethods() {
@@ -158,12 +187,20 @@ def MakeFunction(start, end):
private void writeSectionHeader(string sectionName) {
writeLine("");
writeLine($"# SECTION: {sectionName}");
writeLine($"# SECTION: {sectionName}");
writeLine($"# -----------------------------");
writeLine($"print('Processing {sectionName}')");
writeLine("");
}
private void writeDecls(string decls) {
var lines = decls.Replace("\r", "").Split('\n');
var cleanLines = lines.Select((s) => s.ToEscapedString());
var declString = string.Join('\n', cleanLines);
if (declString != "")
writeLine("idc.parse_decls('''" + declString + "''')");
}
private void writeName(ulong address, string name) {
writeLine($"SetName({address.ToAddressString()}, r'{name.ToEscapedString()}')");
}