}

type Timespec struct {
	Sec  int32
	Nsec int32
}

type Timeval struct {
	Sec  int32
	Usec int32
}

func NsecToTimeval(nsec int64) (tv Timeval) {
	nsec += 999 // round up to microsecond
	tv.Usec = int32(nsec % 1e9 / 1e3)
	tv.Sec = int32(nsec / 1e9)
	return
}

func nsec() int64 {
	var scratch int64

	r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)

	si_addr   *byte
	si_value  [8]byte
	si_band   int64
	__pad     [7]uint64
}

type timeval struct {
	tv_sec    int64
	tv_usec   int32
	pad_cgo_0 [4]byte
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerval struct {
	it_interval timeval
	it_value    timeval
}

type timespec struct {
	tv_sec  int64
	tv_nsec int64
}

//go:nosplit

package main

/*
typedef long double             Float128;

typedef struct SV {
    union {
        Float128         float128;
    } value;
} SV;
*/
import "C"

type ts struct {
	tv *C.SV // ERROR HERE
}

func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = int64(timediv(ns, 1e9, &ts.tv_nsec))
}

type timeval struct {
	tv_sec    int64
	tv_usec   int32
	pad_cgo_0 [4]byte
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerval struct {
	it_interval timeval
	it_value    timeval
}

type umtx_time struct {
	_timeout timespec
	_flags   uint32
	_clockid uint32
}

}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec  int64
	tv_usec int64
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = int64(x)
}

type itimerval struct {
	it_interval timeval
	it_value    timeval
}

type umtx_time struct {
	_timeout timespec
	_flags   uint32
	_clockid uint32

	// Switch to newer Go toolchain if necessary and possible.
	tv, err := NewerToolchain(ctx, s.TooNew.GoVersion)
	if err != nil {
		for _, err := range s.Errors {
			base.Error(err)
		}
		base.Error(fmt.Errorf("switching to go >= %v: %w", s.TooNew.GoVersion, err))
		return
	}

	fmt.Fprintf(os.Stderr, "go: %v requires go >= %v; switching to %v\n", s.TooNew.What, s.TooNew.GoVersion, tv)
	counterSwitchExec.Inc()
	Exec(tv)

}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec  int64
	tv_usec int64
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = int64(x)
}

type itimerval struct {
	it_interval timeval
	it_value    timeval
}

type umtx_time struct {
	_timeout timespec
	_flags   uint32
	_clockid uint32

	return Open(path, O_CREAT|O_WRONLY|O_TRUNC, mode)
}

//sys	utimes(path string, times *[2]Timeval) (err error)

func Utimes(path string, tv []Timeval) error {
	if len(tv) != 2 {
		return EINVAL
	}
	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}

//sys	utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error)

func UtimesNano(path string, ts []Timespec) error {

}

//go:nosplit
func (ts *timespec) setNsec(ns int64) {
	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type timeval struct {
	tv_sec  int64
	tv_usec int64
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = int64(x)
}

type sigactiont struct {
	sa_handler  uintptr
	sa_flags    uint64
	sa_restorer uintptr
	sa_mask     uint64
}

type siginfoFields struct {

	}
}

func predString(tv TypeAndValue) string {
	var buf strings.Builder
	pred := func(b bool, s string) {
		if b {
			if buf.Len() > 0 {
				buf.WriteString(", ")
			}
			buf.WriteString(s)
		}
	}

	pred(tv.IsVoid(), "void")
	pred(tv.IsType(), "type")
	pred(tv.IsBuiltin(), "builtin")
	pred(tv.IsValue() && tv.Value != nil, "const")