forked from OSchip/llvm-project
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
//===-- PluginLoader.cpp - Implement -load command line option ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the -load <plugin> command line option handler.
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//
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//===----------------------------------------------------------------------===//
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#define DONT_GET_PLUGIN_LOADER_OPTION
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#include "llvm/Support/PluginLoader.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/Mutex.h"
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#include "llvm/Support/raw_ostream.h"
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#include <vector>
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using namespace llvm;
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static ManagedStatic<std::vector<std::string> > Plugins;
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static ManagedStatic<sys::SmartMutex<true> > PluginsLock;
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void PluginLoader::operator=(const std::string &Filename) {
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sys::SmartScopedLock<true> Lock(*PluginsLock);
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std::string Error;
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if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
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errs() << "Error opening '" << Filename << "': " << Error
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<< "\n -load request ignored.\n";
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} else {
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Plugins->push_back(Filename);
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}
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}
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unsigned PluginLoader::getNumPlugins() {
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sys::SmartScopedLock<true> Lock(*PluginsLock);
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return Plugins.isConstructed() ? Plugins->size() : 0;
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}
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std::string &PluginLoader::getPlugin(unsigned num) {
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sys::SmartScopedLock<true> Lock(*PluginsLock);
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assert(Plugins.isConstructed() && num < Plugins->size() &&
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"Asking for an out of bounds plugin");
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return (*Plugins)[num];
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}
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