pkg syscall (freebsd-386), type Dirent struct, Pad1 uint16
pkg syscall (freebsd-386), type Stat_t struct, Atim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Blksize int32
pkg syscall (freebsd-386), type Stat_t struct, Btim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Ctim_ext int32
pkg syscall (freebsd-386), type Stat_t struct, Dev uint64
pkg syscall (freebsd-386), type Stat_t struct, Gen uint64

	isIndex := false
	num := int16(0)
	isAmount := true // Amount is zero by default
	ext := ""
	if p.peek() == lex.LSH {
		// (Rn)(Rm<<2), the shifted offset register.
		ext = "LSL"
	} else {
		// (Rn)(Rm.UXTW<1), the extended offset register.
		// Rm.UXTW<<3, the extended register.
		p.get('.')
		tok := p.next()
		ext = tok.String()
	}
	if p.peek() == lex.LSH {

pkg syscall (darwin-arm64), const F_LOG2PHYS = 49
pkg syscall (darwin-arm64), const F_LOG2PHYS ideal-int
pkg syscall (darwin-arm64), const F_LOG2PHYS_EXT = 65
pkg syscall (darwin-arm64), const F_LOG2PHYS_EXT ideal-int
pkg syscall (darwin-arm64), const F_NOCACHE = 48
pkg syscall (darwin-arm64), const F_NOCACHE ideal-int
pkg syscall (darwin-arm64), const F_NODIRECT = 62

pkg os/user, type User struct, Uid string
pkg os/user, type User struct, Username string
pkg path, func Base(string) string
pkg path, func Clean(string) string
pkg path, func Dir(string) string
pkg path, func Ext(string) string
pkg path, func IsAbs(string) bool
pkg path, func Join(...string) string
pkg path, func Match(string, string) (bool, error)
pkg path, func Split(string) (string, string)
pkg path, var ErrBadPattern error

pkg syscall (darwin-386), const F_GETPROTECTIONCLASS = 63
pkg syscall (darwin-386), const F_GLOBAL_NOCACHE = 55
pkg syscall (darwin-386), const F_LOG2PHYS = 49
pkg syscall (darwin-386), const F_LOG2PHYS_EXT = 65
pkg syscall (darwin-386), const F_MARKDEPENDENCY = 60
pkg syscall (darwin-386), const F_NOCACHE = 48
pkg syscall (darwin-386), const F_NODIRECT = 62
pkg syscall (darwin-386), const F_OK = 0

func ARM64RegisterExtension(a *obj.Addr, ext string, reg, num int16, isAmount, isIndex bool) error {
	Rnum := (reg & 31) + int16(num<<5)
	if isAmount {
		if num < 0 || num > 7 {
			return errors.New("index shift amount is out of range")
		}
	}
	if reg <= arm64.REG_R31 && reg >= arm64.REG_R0 {
		if !isAmount {
			return errors.New("invalid register extension")
		}
		switch ext {
		case "UXTB":