SIGGRANT    = Signal(0x3c)
	SIGHUP      = Signal(0x1)
	SIGILL      = Signal(0x4)
	SIGINT      = Signal(0x2)
	SIGIO       = Signal(0x17)
	SIGIOINT    = Signal(0x10)
	SIGIOT      = Signal(0x6)
	SIGKAP      = Signal(0x3c)
	SIGKILL     = Signal(0x9)
	SIGLOST     = Signal(0x6)
	SIGMAX      = Signal(0xff)
	SIGMAX32    = Signal(0x3f)
	SIGMAX64    = Signal(0xff)
	SIGMIGRATE  = Signal(0x23)

			}
			t := &T{
				common: common{
					signal: make(chan any),
				},
				name:          testName,
				startParallel: startParallel,
			}
			t.self = t
			if *chatty {
				fmt.Printf("=== RUN %s\n", t.name)
			}
			go tRunner(t, &tests[i])
			out := (<-t.signal).(*T)
			if out == nil { // Parallel run.
				go func() {
					collector <- <-t.signal
				}()
				numParallel++
				continue

}

//export goCallbackPprof
func goCallbackPprof() {
	// No-op. We want to stress the cgocall and cgocallback internals,
	// landing as many pprof signals there as possible.
}

func CgoPprofCallback() {
	// Issue 50936 was a crash in the SIGPROF handler when the signal
	// arrived during the exitsyscall following a cgocall(back) in dropg or
	// execute, when updating mp.curg.
	//

  }

  /**
   * Signals some other thread waiting on a satisfied guard, if one exists.
   *
   * <p>We manage calls to this method carefully, to signal only when necessary, but never losing a
   * signal, which is the classic problem of this kind of concurrency construct. We must signal if

	SIGPOLL   = Signal(0x1d)
	SIGPROF   = Signal(0x1b)
	SIGPWR    = Signal(0x1e)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTKFLT = Signal(0x10)
	SIGSTOP   = Signal(0x13)
	SIGSYS    = Signal(0x1f)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x14)
	SIGTTIN   = Signal(0x15)
	SIGTTOU   = Signal(0x16)
	SIGUNUSED = Signal(0x1f)
	SIGURG    = Signal(0x17)

	SIGPOLL   = Signal(0x1d)
	SIGPROF   = Signal(0x1b)
	SIGPWR    = Signal(0x1e)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTKFLT = Signal(0x10)
	SIGSTOP   = Signal(0x13)
	SIGSYS    = Signal(0x1f)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x14)
	SIGTTIN   = Signal(0x15)
	SIGTTOU   = Signal(0x16)
	SIGUNUSED = Signal(0x1f)
	SIGURG    = Signal(0x17)

	MOVQ	R12, SP		// Restore real SP

	// Restore vdsoPC, vdsoSP
	// We don't worry about being signaled between the two stores.
	// If we are not in a signal handler, we'll restore vdsoSP to 0,
	// and no one will care about vdsoPC. If we are in a signal handler,
	// we cannot receive another signal.
	MOVQ	8(SP), SI
	MOVQ	SI, m_vdsoSP(BX)
	MOVQ	0(SP), SI
	MOVQ	SI, m_vdsoPC(BX)

	// with its controlling terminal shall cause the process group
	// to be sent a SIGTTOU signal. If the calling thread is
	// blocking SIGTTOU signals or the process is ignoring SIGTTOU
	// signals, the process shall be allowed to perform the
	// operation, and no signal is sent."
	//  -https://pubs.opengroup.org/onlinepubs/9699919799/functions/tcsetpgrp.html
	//

	SIGPOLL   = Signal(0x1d)
	SIGPROF   = Signal(0x1b)
	SIGPWR    = Signal(0x1e)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTKFLT = Signal(0x10)
	SIGSTOP   = Signal(0x13)
	SIGSYS    = Signal(0x1f)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x14)
	SIGTTIN   = Signal(0x15)
	SIGTTOU   = Signal(0x16)
	SIGUNUSED = Signal(0x1f)
	SIGURG    = Signal(0x17)

	SIGPOLL   = Signal(0x1d)
	SIGPROF   = Signal(0x1b)
	SIGPWR    = Signal(0x1e)
	SIGQUIT   = Signal(0x3)
	SIGSEGV   = Signal(0xb)
	SIGSTKFLT = Signal(0x10)
	SIGSTOP   = Signal(0x13)
	SIGSYS    = Signal(0x1f)
	SIGTERM   = Signal(0xf)
	SIGTRAP   = Signal(0x5)
	SIGTSTP   = Signal(0x14)
	SIGTTIN   = Signal(0x15)
	SIGTTOU   = Signal(0x16)
	SIGUNUSED = Signal(0x1f)
	SIGURG    = Signal(0x17)