Reorganized source tree. Started using autotools.

src/mmgr/addressspace.cpp

@@ -0,0 +1,51 @@
+#include "addressspace.hpp"
+
+kernel::AddressSpace::AddressSpace(MemoryAllocator& malloc)
+  : malloc(malloc)
+{
+	this->pageTables = (PageTableEntry*) 0xFFC00000;
+	this->pageDirectory = (PageTableEntry*) 0xFFFFF000;
+}
+
+void* kernel::AddressSpace::mmap(void* start, size_t length)
+{
+	size_t tableIndex = (size_t) start / 4096;
+	for(int i = (int) length; i > 0; i -= 4096)
+	{
+		size_t directoryIndex = tableIndex / 1024;
+		if(!pageDirectory[directoryIndex].getPresent())
+		{
+			physaddr_t newPT = malloc.allocate(4096);
+			pageDirectory[directoryIndex] = newPT;
+			pageDirectory[directoryIndex].setPresent(true);
+			pageDirectory[directoryIndex].setUsermode(false);
+			pageDirectory[directoryIndex].setRw(true);
+		}
+		if(!pageTables[tableIndex].getPresent())
+		{
+			physaddr_t page = malloc.allocate(4096);
+			pageTables[tableIndex] = page;
+			pageTables[tableIndex].setUsermode(false);
+			pageTables[tableIndex].setRw(true);
+			pageTables[tableIndex].setPresent(true);
+		}
+		tableIndex++;
+	}
+	return start;
+}
+
+void kernel::AddressSpace::munmap(void* start, size_t length)
+{
+
+}
+
+physaddr_t kernel::AddressSpace::getPhysicalAddress(void* virtualAddress)
+    const
+{
+	size_t index = (size_t) virtualAddress / 4096;
+	PageTableEntry pte = pageTables[index];
+	if(pte.getPresent())
+		return pte.getPhysicalAddress();
+	else
+		return 0;
+}