1 //===- lib/Linker/Linker.cpp - Basic Linker functionality ----------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains basic Linker functionality that all usages will need. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Linker.h" 15 #include "llvm/Bitcode/ReaderWriter.h" 16 #include "llvm/IR/Module.h" 17 #include "llvm/Support/MemoryBuffer.h" 18 #include "llvm/Support/Path.h" 19 #include "llvm/Support/raw_ostream.h" 20 #include "llvm/Support/system_error.h" 21 using namespace llvm; 22 23 Linker::Linker(StringRef progname, StringRef modname, 24 LLVMContext& C, unsigned flags): 25 Context(C), 26 Composite(new Module(modname, C)), 27 LibPaths(), 28 Flags(flags), 29 Error(), 30 ProgramName(progname) { } 31 32 Linker::Linker(StringRef progname, Module* aModule, unsigned flags) : 33 Context(aModule->getContext()), 34 Composite(aModule), 35 LibPaths(), 36 Flags(flags), 37 Error(), 38 ProgramName(progname) { } 39 40 Linker::~Linker() { 41 delete Composite; 42 } 43 44 bool 45 Linker::error(StringRef message) { 46 Error = message; 47 if (!(Flags&QuietErrors)) 48 errs() << ProgramName << ": error: " << message << "\n"; 49 return true; 50 } 51 52 bool 53 Linker::warning(StringRef message) { 54 Error = message; 55 if (!(Flags&QuietWarnings)) 56 errs() << ProgramName << ": warning: " << message << "\n"; 57 return false; 58 } 59 60 void 61 Linker::verbose(StringRef message) { 62 if (Flags&Verbose) 63 errs() << " " << message << "\n"; 64 } 65 66 void 67 Linker::addPath(const sys::Path& path) { 68 LibPaths.push_back(path); 69 } 70 71 void 72 Linker::addPaths(const std::vector<std::string>& paths) { 73 for (unsigned i = 0, e = paths.size(); i != e; ++i) 74 LibPaths.push_back(sys::Path(paths[i])); 75 } 76 77 void 78 Linker::addSystemPaths() { 79 sys::Path::GetBitcodeLibraryPaths(LibPaths); 80 LibPaths.insert(LibPaths.begin(),sys::Path("./")); 81 } 82 83 Module* 84 Linker::releaseModule() { 85 Module* result = Composite; 86 LibPaths.clear(); 87 Error.clear(); 88 Composite = 0; 89 Flags = 0; 90 return result; 91 } 92
