#include <arch/types.h> #ifndef __SIZE_TYPE__ #define __SIZE_TYPE__ unsigned long #endif typedef __SIZE_TYPE__ size_t; /* There is a GCC macro for a size_t type, but not * for a ssize_t type. Below construct tricks GCC * into making __SIZE_TYPE__ signed. */ #define unsigned signed typedef __SIZE_TYPE__ ssize_t; #undef unsigned #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER) #define member_size(TYPE, MEMBER) (sizeof(((TYPE *) 0)->MEMBER)) #define check_member(structure, member, offset) _Static_assert( \ offsetof(struct structure, member) == offset, \ "`struct " #structure "` offset for `" #member "` is not " #offset) /* Standard units. */ #define KiB (1<<10) #define MiB (1<<20) #define GiB (1<<30) #define KHz (1000) #define MHz (1000*KHz) #define GHz (1000*MHz)