1 //===-- PluginLoader.cpp - Implement -load command line option ------------===//
3 // This file implements the -load <plugin> command line option processor. When
4 // linked into a program, this new command line option is available that allows
5 // users to load shared objects into the running program.
7 // Note that there are no symbols exported by the .o file generated for this
8 // .cpp file. Because of this, a program must link against support.o instead of
9 // support.a: otherwise this translation unit will not be included.
11 //===----------------------------------------------------------------------===//
13 #include "Support/CommandLine.h"
19 void operator=(const std::string &Filename) {
20 if (dlopen(Filename.c_str(), RTLD_NOW) == 0)
21 std::cerr << "Error opening '" << Filename << "': " << dlerror()
22 << "\n -load request ignored.\n";
27 // This causes operator= above to be invoked for every -load option.
28 static cl::opt<PluginLoader, false, cl::parser<string> >
29 LoadOpt("load", cl::ZeroOrMore, cl::value_desc("plugin.so"),
30 cl::desc("Load the specified plugin"));