forked from OSchip/llvm-project
58 lines
1.6 KiB
C++
58 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 was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source 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/System/DynamicLibrary.h"
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#include <iostream>
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#include <vector>
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using namespace llvm;
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static std::vector<std::string>* plugins;
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void PluginLoader::operator=(const std::string &Filename) {
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std::string ErrorMessage;
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if (!plugins)
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plugins = new std::vector<std::string>();
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try {
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sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str());
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plugins->push_back(Filename);
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} catch (const std::string& errmsg) {
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if (errmsg.empty()) {
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ErrorMessage = "Unknown";
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} else {
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ErrorMessage = errmsg;
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}
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}
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if (!ErrorMessage.empty())
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std::cerr << "Error opening '" << Filename << "': " << ErrorMessage
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<< "\n -load request ignored.\n";
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}
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unsigned PluginLoader::getNumPlugins()
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{
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if(plugins)
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return plugins->size();
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else
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return 0;
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}
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std::string& PluginLoader::getPlugin(unsigned num)
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{
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assert(plugins && num < plugins->size() && "Asking for an out of bounds plugin");
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return (*plugins)[num];
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}
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