filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

		{call: "Seteuid(1)", fn: func() error { return syscall.Seteuid(1) }, filter: "Uid:", expect: "\t0\t1\t0\t1"},

pkg syscall (darwin-386), func SetNonblock(int, bool) error
pkg syscall (darwin-386), func Setegid(int) error
pkg syscall (darwin-386), func Seteuid(int) error
pkg syscall (darwin-386), func Setgid(int) error
pkg syscall (darwin-386), func Setgroups([]int) error
pkg syscall (darwin-386), func Setlogin(string) error
pkg syscall (darwin-386), func Setpgid(int, int) error
pkg syscall (darwin-386), func Setpriority(int, int, int) error

	Threads    int    `json:"threads"`
	Goroutines int    `json:"goroutines"`
}

func getProcInfo() *procInfo {
	pi := procInfo{
		Egid:       os.Getegid(),
		Euid:       os.Geteuid(),
		GID:        os.Getgid(),
		Pid:        os.Getpid(),
		Ppid:       os.Getppid(),
		UID:        os.Getuid(),
		TempDir:    os.TempDir(),
		Goroutines: runtime.NumGoroutine(),
	}

	pi.Groups, _ = os.Getgroups()

pkg syscall (darwin-arm64), func SetNonblock(int, bool) error
pkg syscall (darwin-arm64), func Setegid(int) error
pkg syscall (darwin-arm64), func Seteuid(int) error
pkg syscall (darwin-arm64), func Setgid(int) error
pkg syscall (darwin-arm64), func Setgroups([]int) error
pkg syscall (darwin-arm64), func Setlogin(string) error
pkg syscall (darwin-arm64), func Setpgid(int, int) error
pkg syscall (darwin-arm64), func Setpriority(int, int, int) error

pkg syscall (netbsd-arm64), func Setegid(int) error
pkg syscall (netbsd-arm64), func Seteuid(int) error
pkg syscall (netbsd-arm64), func Setgid(int) error
pkg syscall (netbsd-arm64), func Setgroups([]int) error
pkg syscall (netbsd-arm64), func SetKevent(*Kevent_t, int, int, int)
pkg syscall (netbsd-arm64), func SetNonblock(int, bool) error
pkg syscall (netbsd-arm64), func Setpgid(int, int) error

// Test that setgid does not hang on Linux.
// See https://golang.org/issue/3871 for details.

package cgotest

/*
#include <sys/types.h>
#include <unistd.h>
*/
import "C"

import (
	"os"
	"os/signal"
	"syscall"
	"testing"
	"time"
)

func runTestSetgid() bool {
	c := make(chan bool)
	go func() {
		C.setgid(0)
		c <- true
	}()
	select {
	case <-c:

	return string(buf[:n]), nil
}

func Getuid() int {
	return jsProcess.Call("getuid").Int()
}

func Getgid() int {
	return jsProcess.Call("getgid").Int()
}

func Geteuid() int {
	return jsProcess.Call("geteuid").Int()
}

func Getegid() int {
	return jsProcess.Call("getegid").Int()
}

func Getgroups() (groups []int, err error) {
	defer recoverErr(&err)

	// Rewind stack pointer so anything that happens on the stack
	// will clobber the test pattern created by the caller
	ADDU	$(1024*8), R29

	// Ask signaller to setgid
	MOVW	$1, R1
	SYNC
	MOVW	R1, ·Baton(SB)
	SYNC

	// Wait for setgid completion
loop:
	SYNC
	MOVW	·Baton(SB), R1
	OR	R2, R2, R2	// hint that we're in a spin loop
	BNE	R1, loop
	SYNC

	// Restore stack
	ADDU	$(-1024*8), R29

	// Rewind stack pointer so anything that happens on the stack
	// will clobber the test pattern created by the caller
	ADD	$(1024 * 8), R1

	// Ask signaller to setgid
	MOVW	$1, R3
	SYNC
	MOVW	R3, ·Baton(SB)

	// Wait for setgid completion
loop:
	SYNC
	MOVW	·Baton(SB), R3
	CMP	R3, $0
	// Hint that we're in a spin loop
	OR	R1, R1, R1
	BNE	loop
	ISYNC

	// Restore stack

	// Rewind stack pointer so anything that happens on the stack
	// will clobber the test pattern created by the caller
	ADDV	$(1024*8), R29

	// Ask signaller to setgid
	MOVW	$1, R1
	SYNC
	MOVW	R1, ·Baton(SB)
	SYNC

	// Wait for setgid completion
loop:
	SYNC
	MOVW	·Baton(SB), R1
	OR	R2, R2, R2	// hint that we're in a spin loop
	BNE	R1, loop
	SYNC

	// Restore stack
	ADDV	$(-1024*8), R29