if sys.Jail > 0 {
		_, _, err1 = RawSyscall(SYS_JAIL_ATTACH, uintptr(sys.Jail), 0, 0)
		if err1 != 0 {
			goto childerror
		}
	}

	// Enable tracing if requested.
	if sys.Ptrace {
		_, _, err1 = RawSyscall(SYS_PTRACE, uintptr(PTRACE_TRACEME), 0, 0)
		if err1 != 0 {
			goto childerror
		}
	}

	// Session ID
	if sys.Setsid {
		_, _, err1 = RawSyscall(SYS_SETSID, 0, 0, 0)
		if err1 != 0 {

	MOVV	trap+0(FP), R11	// syscall entry
	SYSCALL
	MOVV	R4, r1+32(FP)
	MOVV	R0, r2+40(FP)	// r2 is not used. Always set to 0
	JAL	runtime·exitsyscall(SB)
	RET

TEXT ·RawSyscall(SB),NOSPLIT,$0-56
	JMP	syscall·RawSyscall(SB)

TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
	JMP	syscall·RawSyscall6(SB)

TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
	MOVV	a1+8(FP), R4
	MOVV	a2+16(FP), R5
	MOVV	a3+24(FP), R6
	MOVV	R0, R7

	MOVL	a2+8(FP), CX
	MOVL	a3+12(FP), DX
	MOVL	$0, SI
	MOVL	$0, DI
	INVOKE_SYSCALL
	MOVL	AX, r1+16(FP)
	MOVL	DX, r2+20(FP)
	CALL	runtime·exitsyscall(SB)
	RET

TEXT ·RawSyscall(SB),NOSPLIT,$0-28
	JMP	syscall·RawSyscall(SB)

TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
	JMP	syscall·RawSyscall6(SB)

TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
	MOVL	trap+0(FP), AX  // syscall entry
	MOVL	a1+4(FP), BX
	MOVL	a2+8(FP), CX

	JMP	runtime·syscall_gethostname(SB)

TEXT ·getpid(SB),NOSPLIT,$0
	JMP	runtime·syscall_getpid(SB)

TEXT ·ioctl(SB),NOSPLIT,$0
	JMP	runtime·syscall_ioctl(SB)

TEXT ·RawSyscall(SB),NOSPLIT,$0
	JMP	runtime·syscall_rawsyscall(SB)

TEXT ·RawSyscall6(SB),NOSPLIT,$0
	JMP	runtime·syscall_rawsyscall6(SB)

TEXT ·setgid(SB),NOSPLIT,$0
	JMP	runtime·syscall_setgid(SB)

TEXT ·setgroups1(SB),NOSPLIT,$0

	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
	return r, 0
}

func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
	return r, 0, syscall.Errno(errno)
}

func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)

childerror:
	// send error string on pipe
	RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&errbuf[0])), uintptr(len(errbuf)), 0)
childerror1:
	errbuf[len(errbuf)-1] = 0
	i = 0
	for i < len(errbuf) && errbuf[i] != 0 {
		i++
	}

	RawSyscall6(SYS_PWRITE, uintptr(pipe), uintptr(unsafe.Pointer(&errbuf[0])), uintptr(i),
		^uintptr(0), ^uintptr(0), 0)

	for {
		RawSyscall(SYS_EXITS, 0, 0, 0)
	}
}

func syscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 uintptr) (r1, r2 uintptr, err Errno)
func rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
func rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
func rawSyscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)

//
//go:linkname syscall_rawSyscall6 syscall.rawSyscall6
//go:nosplit
//go:cgo_unsafe_args
func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
	libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall6)), unsafe.Pointer(&fn))
	return
}

//go:linkname syscall_rawSyscall6X syscall.rawSyscall6X
//go:nosplit
//go:cgo_unsafe_args

// parsed from the syscall.Uname's Version field, or (0, 0) if the
// version can't be obtained or parsed.
func KernelVersion() (major int, minor int) {
	var un utsname
	_, _, errno := rawSyscall6(uintptr(unsafe.Pointer(&procUname)), 1, uintptr(unsafe.Pointer(&un)), 0, 0, 0, 0, 0)
	if errno != 0 {
		return 0, 0
	}

	// The version string is in the form "<version>.<update>.<sru>.<build>.<reserved>"

	"internal/abi"
	"unsafe"
)

func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)

var dupTrampoline = abi.FuncPCABI0(libc_dup2_trampoline)

type SockaddrDatalink struct {
	Len    uint8