t.Fatal(err)
	}

	return &command{stdin, proc, t}
}

func parent() (pid, pgrp int) {
	return syscall.Getpid(), syscall.Getpgrp()
}

func TestZeroSysProcAttr(t *testing.T) {
	ppid, ppgrp := parent()

	cmd := create(t)

	cmd.Start()
	defer cmd.Stop()

	cpid, cpgrp := cmd.Info()

	if cpid == ppid {
		t.Fatalf("Parent and child have the same process ID")
	}

	if cpgrp != ppgrp {

class ProcessFixture {
    final Long pid;

    ProcessFixture(Long pid) {
        this.pid = pid
    }

    /**
     * Forcefully kills this daemon.
     */
    void kill(boolean killTree) {
        println "Killing process with pid: $pid"
        if (pid == null) {
            throw new RuntimeException("Unable to force kill the process because provided pid is null!")
        }

			break // mismatched profile records and tags
		}

		// Deserialize the data in the profile buffer.
		recordLen := data[0]
		timestamp := data[1]
		ppid := data[2] >> 1
		if hasP := (data[2] & 0b1) != 0; !hasP {
			ppid = ^uint64(0)
		}
		goid := data[3]
		mpid := data[4]
		stk := data[5:recordLen]

		// Overflow records always have their headers contain
		// all zeroes.

		return 0, e
	}

	m := 0
	for ; m < n && b[m] == ' '; m++ {
	}

	return atoi(b[m : n-1]), nil
}

func Getpid() (pid int) {
	n, _ := readnum("#c/pid")
	return int(n)
}

func Getppid() (ppid int) {
	n, _ := readnum("#c/ppid")
	return int(n)
}

func Read(fd int, p []byte) (n int, err error) {
	return Pread(fd, p, -1)
}

	}
	return groups, nil
}

func Getpid() int {
	return jsProcess.Get("pid").Int()
}

func Getppid() int {
	return jsProcess.Get("ppid").Int()
}

func Umask(mask int) (oldmask int) {
	return jsProcess.Call("umask", mask).Int()
}

func Gettimeofday(tv *Timeval) error { return ENOSYS }

func Kill(pid int, signum Signal) error { return ENOSYS }

		// Signal self if parent is already dead. This might cause a
		// duplicate signal in rare cases, but it won't matter when
		// using SIGKILL.
		pid, _ = rawSyscallNoError(SYS_GETPPID, 0, 0, 0)
		if pid != ppid {
			pid, _ = rawSyscallNoError(SYS_GETPID, 0, 0, 0)
			_, _, err1 = RawSyscall(SYS_KILL, pid, uintptr(sys.Pdeathsig), 0)
			if err1 != 0 {
				goto childerror
			}
		}
	}

//sysnb	Geteuid() (uid int)
//sysnb	Getgid() (gid int)
//sysnb	Getpgid(pid int) (pgid int, err error)
//sysnb	Getpgrp() (pgrp int)
//sysnb	Getpid() (pid int)
//sysnb	Getppid() (ppid int)
//sys	Getpriority(which int, who int) (prio int, err error)
//sysnb	Getrlimit(which int, lim *Rlimit) (err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Getuid() (uid int)

}

//sys	ptrace(request int, pid int, addr uintptr, data int) (err error)
//sys	ptracePtr(request int, pid int, addr unsafe.Pointer, data int) (err error) = SYS_PTRACE

func PtraceAttach(pid int) (err error) {
	return ptrace(PT_ATTACH, pid, 0, 0)
}

func PtraceCont(pid int, signal int) (err error) {
	return ptrace(PT_CONTINUE, pid, 1, signal)
}

func PtraceDetach(pid int) (err error) {

	}
	return Signal(w>>shift) & 0xFF
}

func (w WaitStatus) TrapCause() int { return -1 }

func wait4(pid uintptr, wstatus *WaitStatus, options uintptr, rusage *Rusage) (wpid uintptr, err uintptr)

func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
	r0, e1 := wait4(uintptr(pid), wstatus, uintptr(options), rusage)
	if e1 != 0 {
		err = Errno(e1)
	}
	return int(r0), err
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error) {
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_wait4_trampoline), uintptr(pid), uintptr(unsafe.Pointer(wstatus)), uintptr(options), uintptr(unsafe.Pointer(rusage)), 0, 0)
	wpid = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_wait4_trampoline()