public Region AllocRegion(ulong length, ulong align, string name, ulong stack_protect, Region.RegionType r_type,
bool gc_data)
{
/* Allocate a new region from the 'free' region */
lock (this)
{
ulong start = util.align(free.start, align);
if ((start + length + stack_protect) > (free.start + free.length))
{
System.Diagnostics.Debugger.Log(0, "VirtualRegions", "Out of memory allocating space for " + name +
", start: " + start.ToString("X") + ", length: " + length.ToString() + ", stack_protect: " + stack_protect.ToString("X") +
", free.start: " + free.start.ToString("X") + ", free.length: " + free.length.ToString("X"));
throw new OutOfMemoryException();
}
ulong old_free_start = free.start;
free.start = start + length + stack_protect;
free.length -= (free.start - old_free_start);
Region ret = new Region();
ret.type = r_type;
ret.name = name;
ret.start = start;
ret.length = length + stack_protect;
ret.stack_protect = stack_protect;
Add(ret);
if (gc_data)
{
if (gc.gengc.heap == null)
{
Formatter.WriteLine("VirtualRegions: attempt to allocate gc_data region without valid gc", Program.arch.DebugOutput);
}
else
{
unsafe
{
gc.gengc.heap.AddRoots((byte *)(start + stack_protect), (byte *)(start + length + stack_protect));
}
}
}
Formatter.Write("VirtualRegions: Allocated new region: ", Program.arch.DebugOutput);
Formatter.Write(name, Program.arch.DebugOutput);
Formatter.Write(", start: ", Program.arch.DebugOutput);
Formatter.Write(start, "X", Program.arch.DebugOutput);
Formatter.Write(", length: ", Program.arch.DebugOutput);
Formatter.Write(length, "X", Program.arch.DebugOutput);
if (gc_data)
{
Formatter.Write(", gc_data", Program.arch.DebugOutput);
}
Formatter.WriteLine(Program.arch.DebugOutput);
return(ret);
}
}
public Region AllocRegion(ulong length, ulong align, string name, ulong stack_protect, Region.RegionType r_type)
{
return(AllocRegion(length, align, name, stack_protect, r_type, false));
}
