protected override void *mmap(uint unknown, uint flags, size_t pages)
{
var bytes = pages * 4096;
var ptr = (byte *)VirtualPageManager.AllocatePages(pages, new AllocatePageOptions {
DebugName = "KernelAllocator"
});
//KernelMessage.WriteLine("mmap: Pages: {0}, Addr: {1:X8}", pages, (uint)ptr);
for (var i = 0; i < bytes; i++)
{
*(ptr + i) = 0;
}
return(ptr);
}
public static unsafe void Setup()
{
kmallocAllocator = new KernelAllocator();
var ptr = (byte *)VirtualPageManager.AllocatePages(KMath.AlignValueCeil(Allocator.headSize, 4096));
for (var i = 0; i < Allocator.headSize; i++)
{
*(ptr + i) = 0;
}
kmallocAllocator.List_heads = (malloc_meta **)ptr;
ManagedMemory.UseAllocator = true;
KernelMessage.WriteLine("EarlyBootBytesUsed: {0} bytes", ManagedMemory.EarlyBootBytesUsed);
KernelMessage.WriteLine("Memory free: {0} MB", PhysicalPageManager.FreePages * 4096 / 1024 / 1024);
}
protected override uint munmap(void *addr)
{
VirtualPageManager.FreeAddr(addr);
return(0);
}