/* 56 */ {_SigNotify, "real time signal"},
	/* 57 */ {_SigNotify, "real time signal"},
	/* 58 */ {_SigNotify, "real time signal"},
	/* 59 */ {_SigNotify, "real time signal"},
	/* 60 */ {_SigNotify, "real time signal"},
	/* 61 */ {_SigNotify, "real time signal"},
	/* 62 */ {_SigNotify, "real time signal"},
	/* 63 */ {_SigNotify, "real time signal"},
	/* 64 */ {_SigNotify, "real time signal"},
	/* 65 */ {_SigNotify, "real time signal"},

import (
	"fmt"
	"os"
	"os/signal"
)

func ExampleNotify() {
	// Set up channel on which to send signal notifications.
	// We must use a buffered channel or risk missing the signal
	// if we're not ready to receive when the signal is sent.
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)

	// Block until a signal is received.
	s := <-c
	fmt.Println("Got signal:", s)
}

	43:          {_SigNotify, "signal 43"},
	44:          {_SigNotify, "signal 44"},
	45:          {_SigNotify, "signal 45"},
	46:          {_SigNotify, "signal 46"},
	47:          {_SigNotify, "signal 47"},
	48:          {_SigNotify, "signal 48"},
	49:          {_SigNotify, "signal 49"},
	50:          {_SigNotify, "signal 50"},
	51:          {_SigNotify, "signal 51"},
	52:          {_SigNotify, "signal 52"},

// receives one of these.
//
// Note that Go installs its own signal handlers on startup, so some of these
// signals may only be received if signal handlers are changed. For example,
// SIGSEGV is normally transformed into a panic that causes the process to exit
// with status 2 if not recovered, which we handle as a crash.
func isCrashSignal(signal os.Signal) bool {
	switch signal {
	case
		syscall.SIGILL,  // illegal instruction

	/* 40 */ {_SigNotify, "signal 40"},
	/* 41 */ {_SigNotify, "signal 41"},
	/* 42 */ {_SigNotify, "signal 42"},
	/* 43 */ {_SigNotify, "signal 43"},
	/* 44 */ {_SigNotify, "signal 44"},
	/* 45 */ {_SigNotify, "signal 45"},
	/* 46 */ {_SigNotify, "signal 46"},
	/* 47 */ {_SigNotify, "signal 47"},
	/* 48 */ {_SigNotify, "signal 48"},
	/* 49 */ {_SigNotify, "signal 49"},
	/* 50 */ {_SigNotify, "signal 50"},

		flags = sigtable[sig].flags
	}

	// If the signal is ignored, raising the signal is no-op.
	if handler == _SIG_IGN || (handler == _SIG_DFL && flags&_SigIgn != 0) {
		return
	}

	// Reset the signal handler and raise the signal.
	// We are currently running inside a signal handler, so the
	// signal is blocked. We need to unblock it before raising the
	// signal, or the signal we raise will be ignored until we return

	if err != nil {
		t.Fatalf("gdb exited with error: %v", err)
	}

	// We don't know which thread the fatal signal will land on, but we can still check for basics:
	//
	// 1. A frame in the signal handler: runtime.sigtramp
	// 2. GDB detection of the signal handler: <signal handler called>
	// 3. A frame before the signal handler: this could be foo, or somewhere in the scheduler

	re := regexp.MustCompile(`#.* runtime\.sigtramp `)

	SIGTERM     = Signal(0xf)
	SIGTRAP     = Signal(0x5)
	SIGTSTP     = Signal(0x12)
	SIGTTIN     = Signal(0x15)
	SIGTTOU     = Signal(0x16)
	SIGURG      = Signal(0x10)
	SIGUSR1     = Signal(0x1e)
	SIGUSR2     = Signal(0x1f)
	SIGVIRT     = Signal(0x25)
	SIGVTALRM   = Signal(0x22)
	SIGWAITING  = Signal(0x27)
	SIGWINCH    = Signal(0x1c)
	SIGXCPU     = Signal(0x18)
	SIGXFSZ     = Signal(0x19)
)

		notetsleepg(&sig.note, -1)
	}
}

// signalWaitUntilIdle waits until the signal delivery mechanism is idle.
// This is used to ensure that we do not drop a signal notification due
// to a race between disabling a signal and receiving a signal.
// This assumes that signal delivery has already been disabled for
// the signal(s) in question, and here we are just waiting to make sure

// misuse of unbuffered signal as argument to signal.Notify.
//
// # Analyzer sigchanyzer
//
// sigchanyzer: check for unbuffered channel of os.Signal
//
// This checker reports call expression of the form
//
//	signal.Notify(c <-chan os.Signal, sig ...os.Signal),
//
// where c is an unbuffered channel, which can be at risk of missing the signal.