text: // Copyright 2016 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.
  
  // Package sysdll is an internal leaf package that records and reports
  // which Windows DLL names are used by Go itself. These DLLs are then
  // only loaded from the System32 directory. See Issue 14959.
  package sysdll
  
  // IsSystemDLL reports whether the named dll key (a base name, like
  // "foo.dll") is a system DLL which should only be loaded from the
  // Windows SYSTEM32 directory.
  //
  // Filenames are case sensitive, but that doesn't matter because
  // the case registered with Add is also the same case used with
  // LoadDLL later.
  //
  // It has no associated mutex and should only be mutated serially
  // (currently: during init), and not concurrent with DLL loading.
  var IsSystemDLL = map[string]bool{}
  
  // Add notes that dll is a system32 DLL which should only be loaded
  // from the Windows SYSTEM32 directory. It returns its argument back,
  // for ease of use in generated code.
  func Add(dll string) string {
  	IsSystemDLL[dll] = true
  	return dll
  }
  