1 //===-- PluginLoader.cpp - Implement -load command line option ------------===// 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 // This file implements the -load <plugin> command line option handler. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #define DONT_GET_PLUGIN_LOADER_OPTION 15 #include "llvm/Support/ManagedStatic.h" 16 #include "llvm/Support/PluginLoader.h" 17 #include "llvm/Support/Streams.h" 18 #include "llvm/System/DynamicLibrary.h" 19 #include <ostream> 20 #include <vector> 21 using namespace llvm; 22 23 static ManagedStatic<std::vector<std::string> > Plugins; 24 25 void PluginLoader::operator=(const std::string &Filename) { 26 std::string Error; 27 if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) { 28 cerr << "Error opening '" << Filename << "': " << Error 29 << "\n -load request ignored.\n"; 30 } else { 31 Plugins->push_back(Filename); 32 } 33 } 34 35 unsigned PluginLoader::getNumPlugins() { 36 return Plugins.isConstructed() ? Plugins->size() : 0; 37 } 38 39 std::string &PluginLoader::getPlugin(unsigned num) { 40 assert(Plugins.isConstructed() && num < Plugins->size() && 41 "Asking for an out of bounds plugin"); 42 return (*Plugins)[num]; 43 } 44