This is xnu-11215.1.10. See this file in:
// vim:noexpandtab
#ifndef __TYPES_H__
#define __TYPES_H__
#include <stdint.h>
#include <stdbool.h>
typedef signed char s8;
typedef unsigned char u8;
typedef uint16_t u16;
typedef int16_t s16;
typedef uint32_t u32;
typedef uint64_t u64;
typedef int32_t s32;
typedef int64_t s64;
#if defined(__arm64__) || defined(__x86_64__)
typedef u64 un;
typedef s64 sn;
#else
typedef u32 un;
typedef s32 sn;
#endif
#ifndef __DRT_H__
typedef u32 uint;
#endif
#define volatile_read(atom) (*((volatile typeof(*(atom)) *)(atom)))
#define volatile_write(atom, value) (*((volatile typeof(*(atom)) *)(atom)) = value)
#endif