Source file src/runtime/cgo/mmap.go
Documentation: runtime/cgo
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 //go:build (linux && amd64) || (linux && arm64) 6 // +build linux,amd64 linux,arm64 7 8 package cgo 9 10 // Import "unsafe" because we use go:linkname. 11 import _ "unsafe" 12 13 // When using cgo, call the C library for mmap, so that we call into 14 // any sanitizer interceptors. This supports using the memory 15 // sanitizer with Go programs. The memory sanitizer only applies to 16 // C/C++ code; this permits that code to see the Go code as normal 17 // program addresses that have been initialized. 18 19 // To support interceptors that look for both mmap and munmap, 20 // also call the C library for munmap. 21 22 //go:cgo_import_static x_cgo_mmap 23 //go:linkname x_cgo_mmap x_cgo_mmap 24 //go:linkname _cgo_mmap _cgo_mmap 25 var x_cgo_mmap byte 26 var _cgo_mmap = &x_cgo_mmap 27 28 //go:cgo_import_static x_cgo_munmap 29 //go:linkname x_cgo_munmap x_cgo_munmap 30 //go:linkname _cgo_munmap _cgo_munmap 31 var x_cgo_munmap byte 32 var _cgo_munmap = &x_cgo_munmap 33