_MADV_DONTNEED = C.MADV_DONTNEED

	_SIGHUP     = C.SIGHUP
	_SIGINT     = C.SIGINT
	_SIGQUIT    = C.SIGQUIT
	_SIGILL     = C.SIGILL
	_SIGTRAP    = C.SIGTRAP
	_SIGABRT    = C.SIGABRT
	_SIGBUS     = C.SIGBUS
	_SIGFPE     = C.SIGFPE
	_SIGKILL    = C.SIGKILL
	_SIGUSR1    = C.SIGUSR1
	_SIGSEGV    = C.SIGSEGV
	_SIGUSR2    = C.SIGUSR2
	_SIGPIPE    = C.SIGPIPE
	_SIGALRM    = C.SIGALRM
	_SIGCHLD    = C.SIGCHLD

		die("sigemptyset");
	}
	sa.sa_flags = SA_SIGINFO;
	if (sigaction(SIGIO, &sa, NULL) < 0) {
		die("sigaction");
	}

	sa.sa_sigaction = segvHandler;
	if (sigaction(SIGSEGV, &sa, NULL) < 0 || sigaction(SIGBUS, &sa, NULL) < 0) {
		die("sigaction");
	}

	if (verbose) {
		fprintf(stderr, "calling dlopen\n");
	}

	handle = dlopen(argv[1], RTLD_NOW | RTLD_GLOBAL);
	if (handle == NULL) {

		die("sigemptyset");
	}
	sa.sa_flags = SA_SIGINFO;
	if (sigaction(SIGIO, &sa, NULL) < 0) {
		die("sigaction");
	}

	sa.sa_sigaction = segvHandler;
	if (sigaction(SIGSEGV, &sa, NULL) < 0 || sigaction(SIGBUS, &sa, NULL) < 0) {
		die("sigaction");
	}

	sa.sa_sigaction = pipeHandler;
	if (sigaction(SIGPIPE, &sa, NULL) < 0) {
		die("sigaction");
	}
}

int main(int argc, char** argv) {
	int verbose;

# Types of signals

The signals SIGKILL and SIGSTOP may not be caught by a program, and
therefore cannot be affected by this package.

Synchronous signals are signals triggered by errors in program
execution: SIGBUS, SIGFPE, and SIGSEGV. These are only considered
synchronous when caused by program execution, not when sent using
[os.Process.Kill] or the kill program or some similar mechanism. In

	EUCLEAN         = syscall.Errno(0x87)
	EUNATCH         = syscall.Errno(0x2a)
	EUSERS          = syscall.Errno(0x5e)
	EXFULL          = syscall.Errno(0x34)
)

// Signals
const (
	SIGBUS    = syscall.Signal(0xa)
	SIGCHLD   = syscall.Signal(0x12)
	SIGCLD    = syscall.Signal(0x12)
	SIGCONT   = syscall.Signal(0x19)
	SIGEMT    = syscall.Signal(0x7)
	SIGIO     = syscall.Signal(0x16)

	EUCLEAN         = syscall.Errno(0x75)
	EUNATCH         = syscall.Errno(0x31)
	EUSERS          = syscall.Errno(0x57)
	EXFULL          = syscall.Errno(0x36)
)

// Signals
const (
	SIGBUS    = syscall.Signal(0x7)
	SIGCHLD   = syscall.Signal(0x11)
	SIGCLD    = syscall.Signal(0x11)
	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)

	EUCLEAN         = syscall.Errno(0x75)
	EUNATCH         = syscall.Errno(0x31)
	EUSERS          = syscall.Errno(0x57)
	EXFULL          = syscall.Errno(0x36)
)

// Signals
const (
	SIGBUS    = syscall.Signal(0x7)
	SIGCHLD   = syscall.Signal(0x11)
	SIGCLD    = syscall.Signal(0x11)
	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)

	EUCLEAN         = syscall.Errno(0x75)
	EUNATCH         = syscall.Errno(0x31)
	EUSERS          = syscall.Errno(0x57)
	EXFULL          = syscall.Errno(0x36)
)

// Signals
const (
	SIGBUS    = syscall.Signal(0x7)
	SIGCHLD   = syscall.Signal(0x11)
	SIGCLD    = syscall.Signal(0x11)
	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)

	_SIGILL:     {_SigThrow + _SigUnblock, "SIGILL: illegal instruction"},
	_SIGTRAP:    {_SigThrow + _SigUnblock, "SIGTRAP: trace trap"},
	_SIGABRT:    {_SigNotify + _SigThrow, "SIGABRT: abort"},
	_SIGBUS:     {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
	_SIGFPE:     {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
	_SIGKILL:    {0, "SIGKILL: kill"},
	_SIGUSR1:    {_SigNotify, "SIGUSR1: user-defined signal 1"},

	EUCLEAN         = syscall.Errno(0x75)
	EUNATCH         = syscall.Errno(0x31)
	EUSERS          = syscall.Errno(0x57)
	EXFULL          = syscall.Errno(0x36)
)

// Signals
const (
	SIGBUS    = syscall.Signal(0x7)
	SIGCHLD   = syscall.Signal(0x11)
	SIGCLD    = syscall.Signal(0x11)
	SIGCONT   = syscall.Signal(0x12)
	SIGIO     = syscall.Signal(0x1d)
	SIGPOLL   = syscall.Signal(0x1d)