throw("exitThread")
}

//go:nosplit
func setNonblock(fd int32) {
	flags, _ := fcntl(fd, _F_GETFL, 0)
	if flags != -1 {
		fcntl(fd, _F_SETFL, flags|_O_NONBLOCK)
	}
}

func issetugid() int32 {
	return libcCall(unsafe.Pointer(abi.FuncPCABI0(issetugid_trampoline)), nil)
}
func issetugid_trampoline()

// mach_vm_region is used to obtain virtual memory mappings for use by the

//go:noescape
func kevent(kq int32, ch *keventt, nch int32, ev *keventt, nev int32, ts *timespec) int32

func pipe2(flags int32) (r, w int32, errno int32)
func fcntl(fd, cmd, arg int32) (ret int32, errno int32)

func issetugid() int32

const (
	_ESRCH     = 3
	_ETIMEDOUT = 60

	// From NetBSD's <sys/time.h>
	_CLOCK_REALTIME  = 0
	_CLOCK_VIRTUAL   = 1
	_CLOCK_PROF      = 2
	_CLOCK_MONOTONIC = 3

	_TIMER_RELTIME = 0

	MOVL	arg+8(FP), DX	// arg
	MOVL	$SYS_fcntl, AX
	SYSCALL
	JCC	noerr
	MOVL	$-1, ret+16(FP)
	MOVL	AX, errno+20(FP)
	RET
noerr:
	MOVL	AX, ret+16(FP)
	MOVL	$0, errno+20(FP)
	RET

// func issetugid() int32
TEXT runtime·issetugid(SB),NOSPLIT,$0
	MOVQ	$0, DI
	MOVQ	$0, SI
	MOVQ	$0, DX
	MOVL	$SYS_issetugid, AX
	SYSCALL
	MOVL	AX, ret+0(FP)

//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Getuid() (uid int)
//sysnb	Issetugid() (tainted bool)
//sys	Kqueue() (fd int, err error)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Link(path string, link string) (err error)
//sys	Listen(s int, backlog int) (err error)

//go:noescape
func kevent(kq int32, ch *keventt, nch int32, ev *keventt, nev int32, ts *timespec) int32

func pipe2(flags int32) (r, w int32, errno int32)
func fcntl(fd, cmd, arg int32) (ret int32, errno int32)

func issetugid() int32

// From FreeBSD's <sys/sysctl.h>
const (
	_CTL_HW      = 6
	_HW_PAGESIZE = 7
)

var sigset_all = sigset{[4]uint32{^uint32(0), ^uint32(0), ^uint32(0), ^uint32(0)}}

//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Gettimeofday(tv *Timeval) (err error)
//sysnb	Getuid() (uid int)
//sys	Issetugid() (tainted bool)
//sys	Kill(pid int, signum syscall.Signal) (err error)
//sys	Kqueue() (fd int, err error)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Link(path string, link string) (err error)

	WORD	$0xec510f0e
	B	2(PC)

	// get CNTVCT (Virtual Count Register) into R0(low) R1(high)
	// mrrc    15, 1, r0, r1, cr14
	WORD	$0xec510f1e

	MOVW	R0, ret+4(FP)
	RET

// func issetugid() int32
TEXT runtime·issetugid(SB),NOSPLIT,$0
	MOVW $SYS_issetugid, R7
	SWI $0
	MOVW	R0, ret+0(FP)

	B	runtime·armPublicationBarrier(SB)

TEXT runtime·read_tls_fallback(SB),NOSPLIT|NOFRAME,$0
	MOVM.WP [R1, R2, R3, R12], (R13)
	SWI $SYS__lwp_getprivate
	MOVM.IAW    (R13), [R1, R2, R3, R12]
	RET

// func issetugid() int32
TEXT runtime·issetugid(SB),NOSPLIT,$0
	SWI $SYS_issetugid
	MOVW	R0, ret+0(FP)

//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Gettimeofday(tv *Timeval) (err error)
//sysnb	Getuid() (uid int)
//sys	Issetugid() (tainted bool)
//sys	Kill(pid int, signum syscall.Signal) (err error)
//sys	Kqueue() (fd int, err error)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Link(path string, link string) (err error)

//sysnb	Getrtable() (rtable int, err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Gettimeofday(tv *Timeval) (err error)
//sysnb	Getuid() (uid int)
//sys	Issetugid() (tainted bool)
//sys	Kill(pid int, signum syscall.Signal) (err error)
//sys	Kqueue() (fd int, err error)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Link(path string, link string) (err error)