Processes now keep track of where their code section ends.

This is very hacky, but allows us to allocate address space.

sortix/kernel.cpp

@@ -253,7 +253,7 @@ namespace Sortix
 
 		if ( initrd != NULL )
 		{
-			addr_t loadat = 0x400000UL;
+			addr_t loadat = process->_endcodesection;
 
 			for ( size_t i = 0; i < initrdsize; i += 4096 )
 			{
@@ -264,6 +264,8 @@ namespace Sortix
 
 			Memory::Copy((void*) loadat, initrd, initrdsize);
 			initstart = (Thread::Entry) loadat;
+
+			process->_endcodesection += initrdsize;
 		}
 
 		if ( Scheduler::CreateThread(process, initstart) == NULL )

sortix/scheduler.cpp

@@ -41,6 +41,7 @@ namespace Sortix
 	Process::Process(addr_t addrspace)
 	{
 		_addrspace = addrspace;
+		_endcodesection = 0x400000UL;
 	}
 
 	Process::~Process()

sortix/scheduler.h

@@ -42,6 +42,9 @@ namespace Sortix
 		addr_t _addrspace;
 		DescriptorTable descriptors;
 
+	public:
+		addr_t _endcodesection; // HACK
+
 	public:
 		addr_t GetAddressSpace() { return _addrspace; }