text: // Copyright 2018 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.
  
  // +build darwin,go1.12
  
  package unix
  
  import "unsafe"
  
  // Implemented in the runtime package (runtime/sys_darwin.go)
  func syscall_syscall(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
  func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
  func syscall_syscall6X(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
  func syscall_syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // 32-bit only
  func syscall_rawSyscall(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
  func syscall_rawSyscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
  func syscall_syscallPtr(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
  
  //go:linkname syscall_syscall syscall.syscall
  //go:linkname syscall_syscall6 syscall.syscall6
  //go:linkname syscall_syscall6X syscall.syscall6X
  //go:linkname syscall_syscall9 syscall.syscall9
  //go:linkname syscall_rawSyscall syscall.rawSyscall
  //go:linkname syscall_rawSyscall6 syscall.rawSyscall6
  //go:linkname syscall_syscallPtr syscall.syscallPtr
  
  // Find the entry point for f. See comments in runtime/proc.go for the
  // function of the same name.
  //go:nosplit
  func funcPC(f func()) uintptr {
  	return **(**uintptr)(unsafe.Pointer(&f))
  }
  