public static void Create(Xbox box, Thread thread)
{
var copy = box.Tls.TlsEnd - box.Tls.TlsStart;
var tlsAddr = box.MemoryAllocator.Allocate(copy + box.Tls.TlsZerofill + 0xF) + 4;
while ((tlsAddr & 0xF) != 0)
{
tlsAddr++;
}
tlsAddr -= 4;
Console.WriteLine($"TLS is at {tlsAddr:X}-{tlsAddr + copy + box.Tls.TlsZerofill:X}");
var tls = new GuestMemory <byte>(tlsAddr);
var gtls = new GuestMemory <byte>(box.Tls.TlsStart);
for (var i = 0; i < copy; ++i)
{
tls[i] = gtls[i];
}
for (var i = 0; i < box.Tls.TlsZerofill; ++i)
{
tls[(int)copy + i] = 0;
}
var ethread =
box.New(new Ethread {
UniqueThread = thread.Id, Kthread = new Kthread {
TlsData = tlsAddr
}
});
var tib = box.New <Kpcr>();
tib.Value = new Kpcr {
NtTib = new NtTib {
StackBase = tlsAddr, Self = tib
},
Self = tib,
Prcb = tib + 0x28,
PrcbData = new Kprcb {
CurrentThread = ethread
}
};
Debug.Assert(tib.Value.NtTib.Self == tib);
guest <uint>(box.Tls.TlsIndexAddr).Value = 0; // XXX: HUGE HACK
thread.Tib = tib;
}
public (uint EntryPoint, uint TlsStart, uint TlsEnd, uint TlsZerofill, uint TlsIndexAddr) Load(CpuCore cpu)
{
var highest = new[] { Header.Base + (uint)Data.Length }.Concat(Sections.Select(x => x.VAddr + x.VSize)).Aggregate(Math.Max);
var lowest = new[] { Header.Base + (uint)Data.Length }.Concat(Sections.Select(x => x.VAddr)).Aggregate(Math.Min);
if ((highest & 0xFFF) != 0)
{
highest = (highest & 0xFFFFF000) + 0x1000;
}
var tmp = Header.Oep ^ 0xA8FC57ABU;
var retail = tmp >= Header.Base && tmp < highest;
var pages = (int)(highest / 4096);
var phys = PageManager.Instance.AllocPhysPages(pages);
var virt = PageManager.Instance.AllocVirtPages(pages, at: Header.Base);
cpu.MapPages(virt, phys, pages, true);
WriteLine($"Physical at {phys:X} virt at {virt:X}");
PageManager.Instance.Write(Header.Base, Data.Take((int)(lowest - Header.Base)).ToArray());
WriteLine($"File at {Header.Base:X} - {Header.Base + Data.Length:X}");
WriteLine($"Actual virtual top is {highest:X}");
foreach (var section in Sections)
{
var name = Encoding.ASCII.GetString(Data, (int)(section.NameAddr - Header.Base), 24).Split('\0')[0];
WriteLine($"- {name} {section.VAddr:X} {section.VSize:X} -- {section.RAddr:X} {section.RSize:X}");
PageManager.Instance.Write(section.VAddr, Data.Skip((int)section.RAddr).Take((int)section.RSize).ToArray());
}
var thunk = Header.Thunk ^ (retail ? 0x5B6D40B6U : 0xEFB1F152U);
for (var i = 0U; i < 400; ++i)
{
var addr = new GuestMemory <uint>(thunk + i * 4);
var cur = addr.Value;
if (cur == 0)
{
break;
}
addr.Value = Xbox.KernelCallsBase + (cur & 0x1FF) * 4;
}
return(Header.Oep ^ (retail ? 0xA8FC57ABU : 0x94859D4B), Tls.DataStart, Tls.DataEnd, Tls.ZeroFill, Tls.Index);
}
