github.com/c9s/go@v0.0.0-20180120015821-984e81f64e0c/src/runtime/mmap.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build !plan9
     6  // +build !solaris
     7  // +build !windows
     8  // +build !nacl
     9  // +build !linux !amd64
    10  
    11  package runtime
    12  
    13  import "unsafe"
    14  
    15  // mmap calls the mmap system call. It is implemented in assembly.
    16  // We only pass the lower 32 bits of file offset to the
    17  // assembly routine; the higher bits (if required), should be provided
    18  // by the assembly routine as 0.
    19  // The err result is an OS error code such as ENOMEM.
    20  func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) (p unsafe.Pointer, err int)
    21  
    22  // munmap calls the munmap system call. It is implemented in assembly.
    23  func munmap(addr unsafe.Pointer, n uintptr)