private bool GetMethodTables(ulong obj, out ulong mt, out ulong cmt)
{
mt = 0;
cmt = 0;
byte[] data = new byte[IntPtr.Size * 3]; // TODO assumes bitness same as dump
if (!_runtime.ReadMemory(obj, data, data.Length, out int read) || read != data.Length)
{
return(false);
}
if (IntPtr.Size == 4)
{
mt = BitConverter.ToUInt32(data, 0);
}
else
{
mt = BitConverter.ToUInt64(data, 0);
}
if (mt == _runtime.ArrayMethodTable)
{
if (IntPtr.Size == 4)
{
cmt = BitConverter.ToUInt32(data, 2 * IntPtr.Size);
}
else
{
cmt = BitConverter.ToUInt64(data, 2 * IntPtr.Size);
}
}
return(true);
}
private GCDesc FillGCDesc()
{
DesktopRuntimeBase runtime = DesktopHeap.DesktopRuntime;
Debug.Assert(_constructedMT != 0, "Attempted to fill GC desc with a constructed (not real) type.");
if (!runtime.ReadDword(_constructedMT - (ulong)IntPtr.Size, out int entries))
{
return(null);
}
// Get entries in map
if (entries < 0)
{
entries = -entries;
}
int slots = 1 + entries * 2;
byte[] buffer = new byte[slots * IntPtr.Size];
if (!runtime.ReadMemory(_constructedMT - (ulong)(slots * IntPtr.Size), buffer, buffer.Length, out int read) || read != buffer.Length)
{
return(null);
}
// Construct the gc desc
return(new GCDesc(buffer));
}
