}

// setSignalstackSP sets the ss_sp field of a stackt.
//
//go:nosplit
func setSignalstackSP(s *stackt, sp uintptr) {
	s.ss_sp = sp
}

//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
}

func sigdelset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
}

//go:nosplit

}

// setSignalstackSP sets the ss_sp field of a stackt.
//
//go:nosplit
func setSignalstackSP(s *stackt, sp uintptr) {
	s.ss_sp = sp
}

//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
}

func sigdelset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
}

//go:nosplit

//
//go:nosplit
func setSignalstackSP(s *stackt, sp uintptr) {
	*(*uintptr)(unsafe.Pointer(&s.ss_sp)) = sp
}

//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
	*mask |= 1 << (uint32(i) - 1)
}

func sigdelset(mask *sigset, i int) {
	*mask &^= 1 << (uint32(i) - 1)
}

func setProcessCPUProfiler(hz int32) {

//
//go:nosplit
func setSignalstackSP(s *stackt, sp uintptr) {
	*(*uintptr)(unsafe.Pointer(&s.ss_sp)) = sp
}

//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
	mask.__sigbits[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
}

func sigdelset(mask *sigset, i int) {
	mask.__sigbits[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
}

//go:nosplit

		for {
			select {
			case sig := <-enableSigChan:
				if sig > 0 {
					sigdelset(&sigBlocked, int(sig))
				}
			case sig := <-disableSigChan:
				if sig > 0 && blockableSig(sig) {
					sigaddset(&sigBlocked, int(sig))
				}
			}
			sigprocmask(_SIG_SETMASK, &sigBlocked, nil)
			maskUpdatedChan <- struct{}{}
		}
	}()
}