kernel_ldr: finish implementing all core logic.

libraries/libvapours/include/vapours/defines.hpp

@@ -35,6 +35,7 @@
 #define NORETURN      __attribute__((noreturn))
 #define WEAK_SYMBOL   __attribute__((weak))
 #define ALWAYS_INLINE inline __attribute__((always_inline))
+#define NOINLINE      __attribute__((noinline))
 
 #define CONST_FOLD(x) (__builtin_constant_p(x) ? (x) : (x))