// Note that sometimes we use a lowercase //sys name and
// wrap it in our own nicer implementation.

package syscall

import (
	"unsafe"
)

func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)

func expectSignal(t *testing.T, err error, sig1, sig2 syscall.Signal) bool {
	t.Helper()
	if err == nil {
		t.Error("test program succeeded unexpectedly")
	} else if ee, ok := err.(*exec.ExitError); !ok {
		t.Errorf("error (%v) has type %T; expected exec.ExitError", err, err)
	} else if ws, ok := ee.Sys().(syscall.WaitStatus); !ok {
		t.Errorf("error.Sys (%v) has type %T; expected syscall.WaitStatus", ee.Sys(), ee.Sys())

		<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>

		// the case where a runaway process grabs the exclusive lock and
		// blocks this call indefinitely.
		// https://man7.org/linux/man-pages/man2/fcntl.2.html
		lock := syscall.Flock_t{Type: syscall.F_WRLCK}
		if err = syscall.FcntlFlock(f.Fd(), syscall.F_SETLK, &lock); err == nil {
			break
		}
		time.Sleep(200 * time.Millisecond)
		if time.Now().After(deadline) {

package unix

import (
	"fmt"
	"os"
	"runtime"
	"sync"
	"syscall"
	"unsafe"
)

// Implemented in runtime/syscall_solaris.go.
type syscallFunc uintptr

func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)

//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

pkg syscall (openbsd-amd64), const S_IRWXO ideal-int
pkg syscall (openbsd-amd64-cgo), const S_IRWXG = 56
pkg syscall (openbsd-amd64-cgo), const S_IRWXG ideal-int
pkg syscall (openbsd-amd64-cgo), const S_IRWXO = 7
pkg syscall (openbsd-amd64-cgo), const S_IRWXO ideal-int
pkg syscall (windows-386), const UNIX_PATH_MAX = 108
pkg syscall (windows-386), const UNIX_PATH_MAX ideal-int

// mksysnum_darwin.pl /usr/include/sys/syscall.h
// Code generated by the command above; DO NOT EDIT.

//go:build arm64 && darwin

package syscall

const (
	SYS_SYSCALL                        = 0
	SYS_EXIT                           = 1
	SYS_FORK                           = 2
	SYS_READ                           = 3
	SYS_WRITE                          = 4
	SYS_OPEN                           = 5
	SYS_CLOSE                          = 6

		// Try to execute as-is
		return f()
	}
	// Otherwise, we did execute; return the error from that execution.
	return err
}

func mount(src, dst string) error {
	return syscall.Mount(src, dst, "", syscall.MS_BIND|syscall.MS_RDONLY, "")
}

func (r *RealDependencies) executeXTables(cmd constants.IptablesCmd, iptVer *IptablesVersion, ignoreErrors bool, stdin io.ReadSeeker, args ...string) error {
	mode := "without lock"