func TestProcessAlreadyDone(t *testing.T) {
	// Theoretically MaxInt32 is a valid PID, but the chance of it actually
	// being used is extremely unlikely.
	pid := math.MaxInt32
	if runtime.GOOS == "solaris" || runtime.GOOS == "illumos" {
		// Solaris/Illumos have a lower limit, above which wait returns
		// EINVAL (see waitid in usr/src/uts/common/os/exit.c in
		// illumos). This is configurable via sysconf(_SC_MAXPID), but

// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || darwin || (openbsd && !mips64) || solaris

package syscall

import _ "unsafe"

// used by internal/poll

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris

package syscall

import _ "unsafe"

// As of Go 1.22, the symbols below are found to be pulled via
// linkname in the wild. We provide a push linkname here, to
// keep them accessible with pull linknames.

//   - illumos: https://illumos.org/man/2/open
//   - ios: see darwin
//   - linux: https://man7.org/linux/man-pages/man2/openat.2.html
//   - openbsd: https://man.openbsd.org/open.2
//   - solaris: https://docs.oracle.com/cd/E23824_01/html/821-1463/open-2.html

	// it did not call pthread_attr_init in all cases (see #65625).
	pthread_attr_init(&attr);
#if defined(__GLIBC__) || (defined(__sun) && !defined(__illumos__))
	// pthread_getattr_np is a GNU extension supported in glibc.
	// Solaris is not glibc but does support pthread_getattr_np
	// (and the fallback doesn't work...). Illumos does not.
	pthread_getattr_np(pthread_self(), &attr);  // GNU extension
	pthread_attr_getstack(&attr, &addr, &size); // low address

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build ((darwin || dragonfly || freebsd || (js && wasm) || wasip1 || (!android && linux) || netbsd || openbsd || solaris) && ((!cgo && !darwin) || osusergo)) || aix || illumos

package user

import (
	"fmt"
	"slices"
	"strings"
	"testing"
)

var testGroupFile = `# See the opendirectoryd(8) man page for additional

	"sync"
	"time"
	_ "unsafe"
)

// BUG(mikio): On JS, methods and functions related to
// Interface are not implemented.

// BUG(mikio): On AIX, DragonFly BSD, NetBSD, OpenBSD, Plan 9 and
// Solaris, the MulticastAddrs method of Interface is not implemented.

// errNoSuchInterface should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || dragonfly || freebsd || (js && wasm) || wasip1 || linux || netbsd || openbsd || solaris

package os

import (
	"internal/byteorder"
	"internal/goarch"
	"io"
	"runtime"
	"sync"
	"syscall"
	"unsafe"
)

// Auxiliary information if the File describes a directory

		printCmdOut(w, "", "lsb_release", "-a")
		printGlibcVersion(w)
	case "openbsd", "netbsd", "freebsd", "dragonfly":
		printCmdOut(w, "uname -v: ", "uname", "-v")
	case "illumos", "solaris":
		// Be sure to use the OS-supplied uname, in "/usr/bin":
		printCmdOut(w, "uname -srv: ", "/usr/bin/uname", "-srv")
		out, err := os.ReadFile("/etc/release")
		if err == nil {

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || darwin || netbsd || openbsd || plan9 || solaris || windows

package runtime

import (
	"internal/runtime/atomic"
	"unsafe"
)

// This implementation depends on OS-specific implementations of
//
//	func semacreate(mp *m)