1 //===-- llvm/Support/PluginLoader.h - Plugin Loader for Tools ---*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // A tool can #include this file to get a -load option that allows the user to
11 // load arbitrary shared objects into the tool's address space.  Note that this
12 // header can only be included by a program ONCE, so it should never to used by
13 // library authors.
14 //
15 //===----------------------------------------------------------------------===//
16 
17 #ifndef LLVM_SUPPORT_PLUGINLOADER_H
18 #define LLVM_SUPPORT_PLUGINLOADER_H
19 
20 #include "llvm/Support/CommandLine.h"
21 
22 namespace llvm {
23   struct PluginLoader {
24     void operator=(const std::string &Filename);
25     static unsigned getNumPlugins();
26     static std::string& getPlugin(unsigned num);
27   };
28 
29 #ifndef DONT_GET_PLUGIN_LOADER_OPTION
30   // This causes operator= above to be invoked for every -load option.
31   static cl::opt<PluginLoader, false, cl::parser<std::string> >
32     LoadOpt("load", cl::ZeroOrMore, cl::value_desc("pluginfilename"),
33             cl::desc("Load the specified plugin"));
34 #endif
35 }
36 
37 #endif
38