EvGoUnblock           // goroutine is unblocked [timestamp, goroutine ID, goroutine seq, stack ID]
	EvGoSyscallBegin      // syscall enter [timestamp, P seq, stack ID]
	EvGoSyscallEnd        // syscall exit [timestamp]
	EvGoSyscallEndBlocked // syscall exit and it blocked at some point [timestamp]
	EvGoStatus            // goroutine status at the start of a generation [timestamp, goroutine ID, thread ID, status]

		}
	}

	# Determine which form to use; pad args with zeros.
	my $asm = "Syscall";
	if ($nonblock) {
		if ($errvar eq "" && $ENV{'GOOS'} eq "linux") {
			$asm = "rawSyscallNoError";
		} else {
			$asm = "RawSyscall";
		}
	}
	if ($libc) {
		# Call unexported syscall functions (which take
		# libc functions instead of syscall numbers).
		$asm = lcfirst($asm);
	}
	if(@args <= 3) {
		while(@args < 3) {

// A very simplified example showing where KeepAlive is required:
//
//	type File struct { d int }
//	d, err := syscall.Open("/file/path", syscall.O_RDONLY, 0)
//	// ... do something if err != nil ...
//	p := &File{d}
//	runtime.SetFinalizer(p, func(p *File) { syscall.Close(p.d) })
//	var buf [10]byte
//	n, err := syscall.Read(p.d, buf[:])
//	// Ensure p is not finalized until Read returns.
//	runtime.KeepAlive(p)

	// This bypasses the non-blocking support and is required
	// to recreate the problem in the issue (#59041).
	ttyFD, err := syscall.Open(ttyName, syscall.O_RDWR, 0)
	if err != nil {
		t.Skipf("skipping test because failed to open tty: %v", err)
	}
	defer syscall.Close(ttyFD)

	tty := NewFile(uintptr(ttyFD), "tty")
	defer tty.Close()

	client, server := createSocketPair(t, proto)

		<td> <a href="/block?name={{.Name}}">graph</a> <a href="/block?name={{.Name}}&raw=1" download="block.profile">(download)</a></td>
	</tr>
	<tr>
		<td>Syscall profile:</td>
		<td> <a href="/syscall?name={{.Name}}">graph</a> <a href="/syscall?name={{.Name}}&raw=1" download="syscall.profile">(download)</a></td>
		</tr>
	<tr>
		<td>Scheduler wait profile:</td>

		timeSleep(1_000_000)
	}
	return r
}

var envs []string
var argslice []string

//go:linkname syscall_runtime_envs syscall.runtime_envs
func syscall_runtime_envs() []string { return append([]string{}, envs...) }

//go:linkname syscall_Getpagesize syscall.Getpagesize
func syscall_Getpagesize() int { return int(physPageSize) }

//go:linkname os_runtime_args os.runtime_args

//go:nosplit
func osyield_no_g() {
	osyield()
}

func pipe2(flags int32) (r, w int32, errno int32)

//go:nosplit
func fcntl(fd, cmd, arg int32) (ret int32, errno int32) {
	r, _, err := syscall.Syscall6(syscall.SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
	return int32(r), int32(err)
}

const (
	_si_max_size    = 128
	_sigev_max_size = 64
)

//go:nosplit
//go:nowritebarrierrec

			counterName: "metric-2",
			handler: &fakeHandler{
				errs: []error{syscall.EBUSY},
			},
			err: ErrObjectAlreadyExists,
			// expected calls: NFNL_MSG_ACCT_NEW
			netlinkCalls: 1,
		},
		{
			name:        "insufficient privilege",
			counterName: "metric-2",
			handler: &fakeHandler{
				errs: []error{syscall.EPERM},
			},
			err: ErrUnexpected,
			// expected calls: NFNL_MSG_ACCT_NEW

}

//go:linkname windows_QueryPerformanceCounter internal/syscall/windows.QueryPerformanceCounter
func windows_QueryPerformanceCounter() int64 {
	var counter int64
	stdcall1(_QueryPerformanceCounter, uintptr(unsafe.Pointer(&counter)))
	return counter
}

//go:linkname windows_QueryPerformanceFrequency internal/syscall/windows.QueryPerformanceFrequency
func windows_QueryPerformanceFrequency() int64 {

			*flagOutfile += ".exe"
		}
	}

	interpreter = *flagInterpreter

	if *flagBuildid == "" && ctxt.Target.IsOpenbsd() {
		// TODO(jsing): Remove once direct syscalls are no longer in use.
		// OpenBSD 6.7 onwards will not permit direct syscalls from a
		// dynamically linked binary unless it identifies the binary
		// contains a .note.go.buildid ELF note. See issue #36435.
		*flagBuildid = "go-openbsd"
	}