_SIGPIPE    = C.SIGPIPE
	_SIGALRM    = C.SIGALRM
	_SIGCHLD    = C.SIGCHLD
	_SIGCONT    = C.SIGCONT
	_SIGSTOP    = C.SIGSTOP
	_SIGTSTP    = C.SIGTSTP
	_SIGTTIN    = C.SIGTTIN
	_SIGTTOU    = C.SIGTTOU
	_SIGURG     = C.SIGURG
	_SIGXCPU    = C.SIGXCPU
	_SIGXFSZ    = C.SIGXFSZ
	_SIGVTALRM  = C.SIGVTALRM
	_SIGPROF    = C.SIGPROF
	_SIGWINCH   = C.SIGWINCH
	_SIGIO      = C.SIGIO
	_SIGPWR     = C.SIGPWR

SIGHUP, SIGINT, or SIGTERM signal causes the program to exit. A
SIGQUIT, SIGILL, SIGTRAP, SIGABRT, SIGSTKFLT, SIGEMT, or SIGSYS signal
causes the program to exit with a stack dump. A SIGTSTP, SIGTTIN, or
SIGTTOU signal gets the system default behavior (these signals are
used by the shell for job control). The SIGPROF signal is handled
directly by the Go runtime to implement runtime.CPUProfile. Other

	SIGPROF   = syscall.Signal(0x1d)
	SIGPWR    = syscall.Signal(0x13)
	SIGSTOP   = syscall.Signal(0x17)
	SIGSYS    = syscall.Signal(0xc)
	SIGTSTP   = syscall.Signal(0x18)
	SIGTTIN   = syscall.Signal(0x1a)
	SIGTTOU   = syscall.Signal(0x1b)
	SIGURG    = syscall.Signal(0x15)
	SIGUSR1   = syscall.Signal(0x10)
	SIGUSR2   = syscall.Signal(0x11)
	SIGVTALRM = syscall.Signal(0x1c)
	SIGWINCH  = syscall.Signal(0x14)

	_SIGSTOP:    {0, "SIGSTOP: stop"},
	_SIGTSTP:    {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},
	_SIGTTIN:    {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},
	_SIGTTOU:    {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},
	_SIGURG:     {_SigNotify, "SIGURG: urgent condition on socket"},
	_SIGXCPU:    {_SigNotify, "SIGXCPU: cpu limit exceeded"},
	_SIGXFSZ:    {_SigNotify, "SIGXFSZ: file size limit exceeded"},

	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)
	SIGUSR1   = syscall.Signal(0xa)
	SIGUSR2   = syscall.Signal(0xc)
	SIGVTALRM = syscall.Signal(0x1a)
	SIGWINCH  = syscall.Signal(0x1c)

	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)
	SIGUSR1   = syscall.Signal(0xa)
	SIGUSR2   = syscall.Signal(0xc)
	SIGVTALRM = syscall.Signal(0x1a)
	SIGWINCH  = syscall.Signal(0x1c)

	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)
	SIGUSR1   = syscall.Signal(0xa)
	SIGUSR2   = syscall.Signal(0xc)
	SIGVTALRM = syscall.Signal(0x1a)
	SIGWINCH  = syscall.Signal(0x1c)

		if err1 != 0 {
			goto childerror
		}
	}

	// Restore the signal mask. We do this after TIOCSPGRP to avoid
	// having the kernel send a SIGTTOU signal to the process group.
	runtime_AfterForkInChild()

	// Chroot
	if chroot != nil {
		_, _, err1 = RawSyscall(SYS_CHROOT, uintptr(unsafe.Pointer(chroot)), 0, 0)
		if err1 != 0 {
			goto childerror
		}

		if err1 != 0 {
			goto childerror
		}
	}

	// Restore the signal mask. We do this after TIOCSPGRP to avoid
	// having the kernel send a SIGTTOU signal to the process group.
	runtime_AfterForkInChild()

	// Chroot
	if chroot != nil {
		_, _, err1 = rawSyscall(abi.FuncPCABI0(libc_chroot_trampoline), uintptr(unsafe.Pointer(chroot)), 0, 0)
		if err1 != 0 {

	SIGPWR    = syscall.Signal(0x1e)
	SIGSTKFLT = syscall.Signal(0x10)
	SIGSTOP   = syscall.Signal(0x13)
	SIGSYS    = syscall.Signal(0x1f)
	SIGTSTP   = syscall.Signal(0x14)
	SIGTTIN   = syscall.Signal(0x15)
	SIGTTOU   = syscall.Signal(0x16)
	SIGURG    = syscall.Signal(0x17)
	SIGUSR1   = syscall.Signal(0xa)
	SIGUSR2   = syscall.Signal(0xc)
	SIGVTALRM = syscall.Signal(0x1a)
	SIGWINCH  = syscall.Signal(0x1c)