remove duplicate typedefs for u* types

arch/x64/exceptions.hh

@@ -3,10 +3,9 @@
 
 #include <stdint.h>
 #include <functional>
+#include <types.hh>
 
 struct exception_frame {
-    typedef unsigned long ulong;
-    typedef unsigned short u16;
     ulong r15;
     ulong r14;
     ulong r13;
@@ -38,10 +37,6 @@ public:
     void unregister_handler(unsigned vector);
     void invoke_interrupt(unsigned vector);
 private:
-    typedef uint8_t u8;
-    typedef uint16_t u16;
-    typedef uint32_t u32;
-    typedef uint64_t u64;
     enum {
         type_intr_gate = 14,
     };

elf.hh

@@ -5,15 +5,9 @@
 #include <vector>
 #include <map>
 #include <memory>
+#include <types.hh>
 
 namespace elf {
-
-    typedef unsigned long u64;
-    typedef unsigned int u32;
-    typedef unsigned short u16;
-    typedef unsigned char u8;
-    typedef unsigned long ulong;
-
     typedef u64 Elf64_Addr;
     typedef u64 Elf64_Off;
     typedef u16 Elf64_Half;

mmu.hh

@@ -4,10 +4,9 @@
 #include "fs/fs.hh"
 #include <stdint.h>
 #include <boost/intrusive/set.hpp>
+#include <types.hh>
 
 namespace mmu {
-
-    typedef unsigned long ulong;
     typedef uint64_t f_offset;
 
     enum {