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SELF: Initial support for PRX/SPRX files (issue #21)

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Katy Coe
2020-02-26 02:50:47 +01:00
parent e4034e6a39
commit b961db78f2
1 changed files with 19 additions and 4 deletions
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23
Il2CppInspector.Common/FileFormatReaders/SElfReader.cs
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@@ -9,6 +9,7 @@ using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using NoisyCowStudios.Bin2Object;
@@ -90,10 +91,23 @@ namespace Il2CppInspector
// Read extended info
sceData = ReadObject<SElfSCEData>(startOfElf + (long) elfHeader.e_phoff + elfHeader.e_phentsize * elfHeader.e_phnum);
// TODO: Implement the rest of FSELF
// TODO: Set GlobalOffset
// Get SELF entries which point to segments defined in phdrs
var dataEntries = entries.Where(e => e.HasBlocks).ToList();
throw new NotImplementedException("Il2CppInspector does not have PRX support yet");
// Fixup the used phdr entries
foreach (var entry in dataEntries) {
pht[entry.SegmentIndex].f_p_filesz = entry.EncryptedCompressedSize;
pht[entry.SegmentIndex].f_p_offset = entry.FileOffset;
pht[entry.SegmentIndex].p_memsz = entry.MemorySize;
}
// Filter out unused phdr entries
var phdrIndices = dataEntries.Select(e => (int) e.SegmentIndex).ToList();
pht = pht.Where((e, i) => phdrIndices.Contains(i)).ToArray();
// Get offset of code section
var codeSegment = pht.First(x => ((Elf) x.p_flags & Elf.PF_X) == Elf.PF_X);
GlobalOffset = codeSegment.p_vaddr - codeSegment.p_offset;
return true;
}
@@ -102,7 +116,8 @@ namespace Il2CppInspector
public override uint[] GetFunctionTable() => new [] { MapVATR(elfHeader.e_entry) };
public override uint MapVATR(ulong uiAddr) {
throw new NotImplementedException();
var program_header_table = pht.First(x => uiAddr >= x.p_vaddr && uiAddr <= x.p_vaddr + x.p_filesz);
return (uint) (uiAddr - (program_header_table.p_vaddr - program_header_table.p_offset));
}
}
}