chizui/Il2CppInspectorRedux
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Unify symbol table format and implement for Elf and Mach-O

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This commit is contained in:
Katy Coe
2020-08-09 00:30:18 +02:00
parent e536a3b1eb
commit 00c2e8ad44
7 changed files with 127 additions and 21 deletions
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17
Il2CppInspector.Common/FileFormatReaders/ElfReader.cs
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@@ -7,6 +7,7 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
@@ -131,7 +132,7 @@ namespace Il2CppInspector
private TPHdr getProgramHeader(Elf programIndex) => program_header_table.FirstOrDefault(x => x.p_type == (uint) programIndex);
private elf_dynamic<TWord> getDynamic(Elf dynamicIndex) => dynamic_table?.FirstOrDefault(x => (Elf) conv.ULong(x.d_tag) == dynamicIndex);
private Dictionary<string, ulong> symbolTable = new Dictionary<string, ulong>();
private Dictionary<string, Symbol> symbolTable = new Dictionary<string, Symbol>();
private List<Export> exports = new List<Export>();
protected abstract Elf ArchClass { get; }
@@ -318,7 +319,7 @@ namespace Il2CppInspector
xorRange(conv.Int(section.sh_offset), conv.Int(section.sh_size), xorValue);
}
public override Dictionary<string, ulong> GetSymbolTable() => symbolTable;
public override Dictionary<string, Symbol> GetSymbolTable() => symbolTable;
public override IEnumerable<Export> GetExports() => exports;
private void processSymbols() {
@@ -366,10 +367,18 @@ namespace Il2CppInspector
foreach (var symbol in symbol_table) {
var name = ReadNullTerminatedString(conv.Long(pTab.strings) + symbol.st_name);
var type = symbol.type == Elf.STT_FUNC? SymbolType.Function
: symbol.type == Elf.STT_OBJECT || symbol.type == Elf.STT_COMMON? SymbolType.Name
: SymbolType.Unknown;
if (symbol.st_shndx == (ushort) Elf.SHN_UNDEF)
type = SymbolType.Import;
// Avoid duplicates
symbolTable.TryAdd(name, conv.ULong(symbol.st_value));
var symbolItem = new Symbol {Name = name, Type = type, VirtualAddress = conv.ULong(symbol.st_value) };
symbolTable.TryAdd(name, symbolItem);
if (symbol.st_shndx != (ushort) Elf.SHN_UNDEF)
exportTable.TryAdd(name, new Export {Name = name, VirtualAddress = conv.ULong(symbol.st_value)});
exportTable.TryAdd(name, new Export {Name = symbolItem.DemangledName, VirtualAddress = conv.ULong(symbol.st_value)});
}
}