1 //===-- llvm/Support/PluginLoader.h - Plugin Loader for Tools ---*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // A tool can #include this file to get a -load option that allows the user to 10 // load arbitrary shared objects into the tool's address space. Note that this 11 // header can only be included by a program ONCE, so it should never to used by 12 // library authors. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_SUPPORT_PLUGINLOADER_H 17 #define LLVM_SUPPORT_PLUGINLOADER_H 18 19 #include "llvm/Support/Compiler.h" 20 21 #ifndef DONT_GET_PLUGIN_LOADER_OPTION 22 #include "llvm/Support/CommandLine.h" 23 #endif 24 25 #include <string> 26 27 namespace llvm { 28 struct PluginLoader { 29 LLVM_ABI void operator=(const std::string &Filename); 30 LLVM_ABI static unsigned getNumPlugins(); 31 LLVM_ABI static std::string &getPlugin(unsigned num); 32 }; 33 34 #ifndef DONT_GET_PLUGIN_LOADER_OPTION 35 // This causes operator= above to be invoked for every -load option. 36 static cl::opt<PluginLoader, false, cl::parser<std::string>> 37 LoadOpt("load", cl::value_desc("pluginfilename"), 38 cl::desc("Load the specified plugin")); 39 #endif 40 } 41 42 #endif 43