1 // Copyright 2016 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 windows 6 7 // Package sysdll is an internal leaf package that records and reports 8 // which Windows DLL names are used by Go itself. These DLLs are then 9 // only loaded from the System32 directory. See Issue 14959. 10 package sysdll 11 12 // IsSystemDLL reports whether the named dll key (a base name, like 13 // "foo.dll") is a system DLL which should only be loaded from the 14 // Windows SYSTEM32 directory. 15 // 16 // Filenames are case sensitive, but that doesn't matter because 17 // the case registered with Add is also the same case used with 18 // LoadDLL later. 19 // 20 // It has no associated mutex and should only be mutated serially 21 // (currently: during init), and not concurrent with DLL loading. 22 var IsSystemDLL = map[string]bool{} 23 24 // Add notes that dll is a system32 DLL which should only be loaded 25 // from the Windows SYSTEM32 directory. It returns its argument back, 26 // for ease of use in generated code. 27 func Add(dll string) string { 28 IsSystemDLL[dll] = true 29 return dll 30 } 31