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修正Macho下的基址

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This commit is contained in:
Perfare 2020-02-27 23:42:21 +08:00
parent f62db1bd24
commit d4fb890d42
2 changed files with 24 additions and 6 deletions
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15
Il2CppDumper/ExecutableFormats/Macho.cs
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@ -12,7 +12,7 @@ namespace Il2CppDumper
private List<MachoSection> sections = new List<MachoSection>();
private static readonly byte[] FeatureBytes1 = { 0x0, 0x22 };//MOVS R2, #0
private static readonly byte[] FeatureBytes2 = { 0x78, 0x44, 0x79, 0x44 };//ADD R0, PC and ADD R1, PC
private ulong vmaddr;
public Macho(Stream stream, float version, long maxMetadataUsages) : base(stream, version, maxMetadataUsages)
{
@ -27,7 +27,16 @@ namespace Il2CppDumper
var cmdsize = ReadUInt32();
if (cmd == 1) //LC_SEGMENT
{
Position += 40; //skip segname, vmaddr, vmsize, fileoff, filesize, maxprot, initprot
var segname = Encoding.UTF8.GetString(ReadBytes(16)).TrimEnd('\0');
if (segname == "__TEXT") //__PAGEZERO
{
vmaddr = ReadUInt32();
}
else
{
Position += 4;
}
Position += 20; //skip vmsize, fileoff, filesize, maxprot, initprot
var nsects = ReadUInt32();
Position += 4; //skip flags
for (var j = 0; j < nsects; j++)
@ -168,7 +177,7 @@ namespace Il2CppDumper
public override ulong GetRVA(ulong pointer)
{
return pointer - 0x4000u;
return pointer - vmaddr;
}
}
}

15
Il2CppDumper/ExecutableFormats/Macho64.cs
View file

@ -12,7 +12,7 @@ namespace Il2CppDumper
private List<MachoSection64Bit> sections = new List<MachoSection64Bit>();
private static readonly byte[] FeatureBytes1 = { 0x2, 0x0, 0x80, 0xD2 };//MOV X2, #0
private static readonly byte[] FeatureBytes2 = { 0x3, 0x0, 0x80, 0x52 };//MOV W3, #0
private ulong vmaddr;
public Macho64(Stream stream, float version, long maxMetadataUsages) : base(stream, version, maxMetadataUsages)
{
@ -26,7 +26,16 @@ namespace Il2CppDumper
var cmdsize = ReadUInt32();
if (cmd == 0x19) //LC_SEGMENT_64
{
Position += 56; //skip segname, vmaddr, vmsize, fileoff, filesize, maxprot, initprot
var segname = Encoding.UTF8.GetString(ReadBytes(16)).TrimEnd('\0');
if (segname == "__TEXT") //__PAGEZERO
{
vmaddr = ReadUInt64();
}
else
{
Position += 8;
}
Position += 32; //skip vmsize, fileoff, filesize, maxprot, initprot
var nsects = ReadUInt32();
Position += 4; //skip flags
for (var j = 0; j < nsects; j++)
@ -196,7 +205,7 @@ namespace Il2CppDumper
public override ulong GetRVA(ulong pointer)
{
return pointer - 0x100000000ul;
return pointer - vmaddr;
}
}
}