// zero because the world is stopped and there are no available Ps for syscall-exited
	// goroutines to run on.
	//
	// Because we set gen before checking this, and because exitingSyscall is always incremented
	// *before* traceAcquire (which checks gen), we can be certain that when exitingSyscall is zero
	// that any goroutine that goes to exit a syscall from then on *must* observe the new gen as
	// well as trace.enabled being set to true.

// go run mksysnum.go https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build amd64 && dragonfly

package unix

const (
	SYS_EXIT  = 1 // { void exit(int rval); }
	SYS_FORK  = 2 // { int fork(void); }
	SYS_READ  = 3 // { ssize_t read(int fd, void *buf, size_t nbyte); }
	SYS_WRITE = 4 // { ssize_t write(int fd, const void *buf, size_t nbyte); }

// go run mksysnum.go http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build 386 && netbsd

package unix

const (
	SYS_EXIT                 = 1   // { void|sys||exit(int rval); }
	SYS_FORK                 = 2   // { int|sys||fork(void); }
	SYS_READ                 = 3   // { ssize_t|sys||read(int fd, void *buf, size_t nbyte); }

		// sigPerThreadSyscall is the same signal used by glibc for
		// per-thread syscalls on Linux. We use it for the same purpose
		// in non-cgo binaries. Since this signal is not _SigNotify,
		// there is nothing more to do once we run the syscall.
		runPerThreadSyscall()
		return
	}

	if sig == sigPreempt && debug.asyncpreemptoff == 0 && !delayedSignal {

// go run mksysnum.go http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master
// Code generated by the command above; DO NOT EDIT.

//go:build arm64 && netbsd

package unix

const (
	SYS_EXIT                 = 1   // { void|sys||exit(int rval); }
	SYS_FORK                 = 2   // { int|sys||fork(void); }
	SYS_READ                 = 3   // { ssize_t|sys||read(int fd, void *buf, size_t nbyte); }

//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

		}
		return sa, nil
	}
	return nil, EAFNOSUPPORT
}

// Some external packages rely on SYS___SYSCTL being defined to implement their
// own sysctl wrappers. Provide it here, even though direct syscalls are no
// longer supported on darwin.
const SYS___SYSCTL = SYS_SYSCTL

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

// go run mksysnum.go http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build amd64 && netbsd

package unix

const (
	SYS_EXIT                 = 1   // { void|sys||exit(int rval); }
	SYS_FORK                 = 2   // { int|sys||fork(void); }
	SYS_READ                 = 3   // { ssize_t|sys||read(int fd, void *buf, size_t nbyte); }

// go run mksysnum.go http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build arm && netbsd

package unix

const (
	SYS_EXIT                 = 1   // { void|sys||exit(int rval); }
	SYS_FORK                 = 2   // { int|sys||fork(void); }
	SYS_READ                 = 3   // { ssize_t|sys||read(int fd, void *buf, size_t nbyte); }

	O_RDONLY int = syscall.O_RDONLY // open the file read-only.
	O_WRONLY int = syscall.O_WRONLY // open the file write-only.
	O_RDWR   int = syscall.O_RDWR   // open the file read-write.
	// The remaining values may be or'ed in to control behavior.
	O_APPEND int = syscall.O_APPEND // append data to the file when writing.
	O_CREATE int = syscall.O_CREAT  // create a new file if none exists.