user thread/process and elf loader stub

src/include/kernel/sched.h

@@ -4,6 +4,7 @@
 #include <sys/types.h>
 #include <arch/regs.h>
 #include <kernel/vfs.h>
+#include <kernel/vmm.h>
 
 #define THREAD_PRIORITY_INTERRUPT 0
 #define THREAD_PRIORITY_KERNEL 1
@@ -37,6 +38,7 @@ typedef struct _proc_t{
 	pid_t pid;
 	gid_t gid;
 	uid_t uid;
+	vmm_context* context;
 	thread_t** threads;
 	size_t threadcount;
 	dirnode_t* root;