1 //===-- PluginLoader.cpp - Implement -load command line option ------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the -load <plugin> command line option handler.
12 //===----------------------------------------------------------------------===//
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 "llvm/System/Mutex.h"
24 static ManagedStatic<std::vector<std::string> > Plugins;
25 static ManagedStatic<sys::SmartMutex<true> > PluginsLock;
27 void PluginLoader::operator=(const std::string &Filename) {
28 sys::SmartScopedLock<true> Lock(*PluginsLock);
30 if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
31 cerr << "Error opening '" << Filename << "': " << Error
32 << "\n -load request ignored.\n";
34 Plugins->push_back(Filename);
38 unsigned PluginLoader::getNumPlugins() {
39 sys::SmartScopedLock<true> Lock(*PluginsLock);
40 return Plugins.isConstructed() ? Plugins->size() : 0;
43 std::string &PluginLoader::getPlugin(unsigned num) {
44 sys::SmartScopedLock<true> Lock(*PluginsLock);
45 assert(Plugins.isConstructed() && num < Plugins->size() &&
46 "Asking for an out of bounds plugin");
47 return (*Plugins)[num];