//===-- PluginLoader.cpp - Implement -load command line option ------------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
-// This file implements the -load <plugin> command line option processor. When
-// linked into a program, this new command line option is available that allows
-// users to load shared objects into the running program.
+//===----------------------------------------------------------------------===//
//
-// Note that there are no symbols exported by the .o file generated for this
-// .cpp file. Because of this, a program must link against support.o instead of
-// support.a: otherwise this translation unit will not be included.
+// This file implements the -load <plugin> command line option handler.
//
//===----------------------------------------------------------------------===//
-#include "Support/DynamicLinker.h"
-#include "Support/CommandLine.h"
-#include "Config/dlfcn.h"
-#include "Config/link.h"
-#include <iostream>
+#define DONT_GET_PLUGIN_LOADER_OPTION
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PluginLoader.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/DynamicLibrary.h"
+#include "llvm/System/Mutex.h"
+#include <vector>
+using namespace llvm;
+
+static ManagedStatic<std::vector<std::string> > Plugins;
+static ManagedStatic<sys::SmartMutex<true> > PluginsLock;
-namespace {
- struct PluginLoader {
- void operator=(const std::string &Filename) {
- std::string ErrorMessage;
- if (LinkDynamicObject (Filename.c_str (), &ErrorMessage))
- std::cerr << "Error opening '" << Filename << "': " << ErrorMessage
- << "\n -load request ignored.\n";
- }
- };
+void PluginLoader::operator=(const std::string &Filename) {
+ sys::SmartScopedLock<true> Lock(*PluginsLock);
+ std::string Error;
+ if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
+ errs() << "Error opening '" << Filename << "': " << Error
+ << "\n -load request ignored.\n";
+ } else {
+ Plugins->push_back(Filename);
+ }
}
-// This causes operator= above to be invoked for every -load option.
-static cl::opt<PluginLoader, false, cl::parser<std::string> >
-LoadOpt("load", cl::ZeroOrMore, cl::value_desc("plugin.so"),
- cl::desc("Load the specified plugin"));
+unsigned PluginLoader::getNumPlugins() {
+ sys::SmartScopedLock<true> Lock(*PluginsLock);
+ return Plugins.isConstructed() ? Plugins->size() : 0;
+}
+
+std::string &PluginLoader::getPlugin(unsigned num) {
+ sys::SmartScopedLock<true> Lock(*PluginsLock);
+ assert(Plugins.isConstructed() && num < Plugins->size() &&
+ "Asking for an out of bounds plugin");
+ return (*Plugins)[num];
+}