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MachO: Implement GetSections()

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This commit is contained in:
Katy Coe
2020-12-04 21:11:19 +01:00
parent bb0badeb40
commit 381486e322
3 changed files with 31 additions and 7 deletions
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34
Il2CppInspector.Common/FileFormatReaders/MachOReader.cs
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@@ -25,12 +25,12 @@ namespace Il2CppInspector
protected override MachO lc_Segment => MachO.LC_SEGMENT;
public override uint MapVATR(ulong uiAddr) {
var section = sections.First(x => uiAddr >= x.Address && uiAddr <= x.Address + x.Size);
var section = machoSections.First(x => uiAddr >= x.Address && uiAddr <= x.Address + x.Size);
return (uint) uiAddr - (section.Address - section.ImageOffset);
}
public override ulong MapFileOffsetToVA(uint offset) {
var section = sections.First(x => offset >= x.ImageOffset && offset < x.ImageOffset + x.Size);
var section = machoSections.First(x => offset >= x.ImageOffset && offset < x.ImageOffset + x.Size);
return section.Address + offset - section.ImageOffset;
}
}
@@ -47,12 +47,12 @@ namespace Il2CppInspector
protected override MachO lc_Segment => MachO.LC_SEGMENT_64;
public override uint MapVATR(ulong uiAddr) {
var section = sections.First(x => uiAddr >= x.Address && uiAddr <= x.Address + x.Size);
var section = machoSections.First(x => uiAddr >= x.Address && uiAddr <= x.Address + x.Size);
return (uint) (uiAddr - (section.Address - section.ImageOffset));
}
public override ulong MapFileOffsetToVA(uint offset) {
var section = sections.First(x => offset >= x.ImageOffset && offset < x.ImageOffset + x.Size);
var section = machoSections.First(x => offset >= x.ImageOffset && offset < x.ImageOffset + x.Size);
return section.Address + offset - section.ImageOffset;
}
}
@@ -67,7 +67,9 @@ namespace Il2CppInspector
private readonly TConvert conv = new TConvert();
private MachOHeader<TWord> header;
protected readonly List<MachOSection<TWord>> sections = new List<MachOSection<TWord>>();
protected readonly List<MachOSection<TWord>> machoSections = new List<MachOSection<TWord>>();
private List<Section> sections = new List<Section>();
private MachOSection<TWord> funcTab;
private MachOSymtabCommand symTab;
@@ -121,7 +123,23 @@ namespace Il2CppInspector
if (segment.Name == "__TEXT" || segment.Name == "__DATA") {
for (int s = 0; s < segment.NumSections; s++) {
var section = ReadObject<MachOSection<TWord>>();
sections.Add(section);
machoSections.Add(section);
// Create universal section
sections.Add(new Section {
VirtualStart = conv.ULong(section.Address),
VirtualEnd = conv.ULong(section.Address) + conv.ULong(section.Size) - 1,
ImageStart = section.ImageOffset,
ImageEnd = section.ImageOffset + (uint) conv.Int(section.Size) - 1,
IsData = segment.Name == "__DATA" && section.Name != "__bss",
IsExec = segment.Name == "__TEXT",
IsBSS = segment.Name == "__DATA" && section.Name == "__bss",
Name = section.Name
});
// First code section
if (section.Name == "__text") {
GlobalOffset = (ulong) Convert.ChangeType(section.Address, typeof(ulong)) - section.ImageOffset;
}
@@ -170,7 +188,7 @@ namespace Il2CppInspector
return false;
// Process relocations
foreach (var section in sections) {
foreach (var section in machoSections) {
var rels = ReadArray<MachO_relocation_info>(section.ImageRelocOffset, section.NumRelocEntries);
// TODO: Implement Mach-O relocations
@@ -275,5 +293,7 @@ namespace Il2CppInspector
}
public override IEnumerable<Export> GetExports() => exports;
public override IEnumerable<Section> GetSections() => sections;
}
}

2
Il2CppInspector.Common/FileFormatReaders/PEReader.cs
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@@ -167,5 +167,7 @@ namespace Il2CppInspector
return pe.ImageBase + section.VirtualAddress + offset - section.PointerToRawData;
}
// TODO: PEReader.GetSections()
}
}

2
Il2CppInspector.Common/FileFormatReaders/SElfReader.cs
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@@ -124,5 +124,7 @@ namespace Il2CppInspector
var segment = pht.First(x => offset >= x.p_offset && offset < x.p_offset + x.p_filesz);
return segment.p_vaddr + offset - segment.p_offset;
}
// TODO: SElfReader.GetSections()
}
}