1 //===-- PluginLoader.cpp - Implement -load command line option ------------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the -load <plugin> command line option processor. When
11 // linked into a program, this new command line option is available that allows
12 // users to load shared objects into the running program.
14 // Note that there are no symbols exported by the .o file generated for this
15 // .cpp file. Because of this, a program must link against support.o instead of
16 // support.a: otherwise this translation unit will not be included.
18 //===----------------------------------------------------------------------===//
20 #include "Support/DynamicLinker.h"
21 #include "Support/CommandLine.h"
22 #include "Config/config.h"
28 void operator=(const std::string &Filename) {
29 std::string ErrorMessage;
30 if (LinkDynamicObject (Filename.c_str (), &ErrorMessage))
31 std::cerr << "Error opening '" << Filename << "': " << ErrorMessage
32 << "\n -load request ignored.\n";
37 // This causes operator= above to be invoked for every -load option.
38 static cl::opt<PluginLoader, false, cl::parser<std::string> >
39 LoadOpt("load", cl::ZeroOrMore, cl::value_desc("plugin" SHLIBEXT),
40 cl::desc("Load the specified plugin"));