+++ /dev/null
-//===----------------------------------------------------------------------===//
-// LLVM 'LINK' UTILITY
-//
-// This utility may be invoked in the following manner:
-// link a.bc b.bc c.bc -o x.bc
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Module.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Bytecode/Reader.h"
-#include "llvm/Bytecode/Writer.h"
-#include "llvm/Transforms/Utils/Linker.h"
-#include "Support/CommandLine.h"
-#include "Support/Signals.h"
-#include <fstream>
-#include <memory>
-#include <sys/types.h> // For FileExists
-#include <sys/stat.h>
-
-static cl::list<std::string>
-InputFilenames(cl::Positional, cl::OneOrMore,
- cl::desc("<input bytecode files>"));
-
-static cl::opt<std::string>
-OutputFilename("o", cl::desc("Override output filename"), cl::init("-"),
- cl::value_desc("filename"));
-
-static cl::opt<bool> Force("f", cl::desc("Overwrite output files"));
-
-static cl::opt<bool>
-Verbose("v", cl::desc("Print information about actions taken"));
-
-static cl::opt<bool>
-DumpAsm("d", cl::desc("Print assembly as linked"), cl::Hidden);
-
-static cl::list<std::string>
-LibPaths("L", cl::desc("Specify a library search path"), cl::ZeroOrMore,
- cl::value_desc("directory"), cl::Prefix);
-
-// FileExists - Return true if the specified string is an openable file...
-static inline bool FileExists(const std::string &FN) {
- struct stat StatBuf;
- return stat(FN.c_str(), &StatBuf) != -1;
-}
-
-// LoadFile - Read the specified bytecode file in and return it. This routine
-// searches the link path for the specified file to try to find it...
-//
-static inline std::auto_ptr<Module> LoadFile(const std::string &FN) {
- std::string Filename = FN;
- std::string ErrorMessage;
-
- unsigned NextLibPathIdx = 0;
- bool FoundAFile = false;
-
- while (1) {
- if (Verbose) std::cerr << "Loading '" << Filename << "'\n";
- if (FileExists(Filename)) FoundAFile = true;
- Module *Result = ParseBytecodeFile(Filename, &ErrorMessage);
- if (Result) return std::auto_ptr<Module>(Result); // Load successful!
-
- if (Verbose) {
- std::cerr << "Error opening bytecode file: '" << Filename << "'";
- if (ErrorMessage.size()) std::cerr << ": " << ErrorMessage;
- std::cerr << "\n";
- }
-
- if (NextLibPathIdx == LibPaths.size()) break;
- Filename = LibPaths[NextLibPathIdx++] + "/" + FN;
- }
-
- if (FoundAFile)
- std::cerr << "Bytecode file '" << FN << "' corrupt! "
- << "Use 'link -v ...' for more info.\n";
- else
- std::cerr << "Could not locate bytecode file: '" << FN << "'\n";
- return std::auto_ptr<Module>();
-}
-
-
-
-
-int main(int argc, char **argv) {
- cl::ParseCommandLineOptions(argc, argv, " llvm linker\n");
- assert(InputFilenames.size() > 0 && "OneOrMore is not working");
-
- unsigned BaseArg = 0;
- std::string ErrorMessage;
-
- std::auto_ptr<Module> Composite(LoadFile(InputFilenames[BaseArg]));
- if (Composite.get() == 0) return 1;
-
- for (unsigned i = BaseArg+1; i < InputFilenames.size(); ++i) {
- std::auto_ptr<Module> M(LoadFile(InputFilenames[i]));
- if (M.get() == 0) return 1;
-
- if (Verbose) std::cerr << "Linking in '" << InputFilenames[i] << "'\n";
-
- if (LinkModules(Composite.get(), M.get(), &ErrorMessage)) {
- std::cerr << argv[0] << ": error linking in '" << InputFilenames[i]
- << "': " << ErrorMessage << "\n";
- return 1;
- }
- }
-
- if (DumpAsm) std::cerr << "Here's the assembly:\n" << Composite.get();
-
- std::ostream *Out = &std::cout; // Default to printing to stdout...
- if (OutputFilename != "-") {
- if (!Force && std::ifstream(OutputFilename.c_str())) {
- // If force is not specified, make sure not to overwrite a file!
- std::cerr << argv[0] << ": error opening '" << OutputFilename
- << "': file exists!\n"
- << "Use -f command line argument to force output\n";
- return 1;
- }
- Out = new std::ofstream(OutputFilename.c_str());
- if (!Out->good()) {
- std::cerr << argv[0] << ": error opening '" << OutputFilename << "'!\n";
- return 1;
- }
-
- // Make sure that the Out file gets unlink'd from the disk if we get a
- // SIGINT
- RemoveFileOnSignal(OutputFilename);
- }
-
- if (verifyModule(*Composite.get())) {
- std::cerr << argv[0] << ": linked module is broken!\n";
- return 1;
- }
-
- if (Verbose) std::cerr << "Writing bytecode...\n";
- WriteBytecodeToFile(Composite.get(), *Out);
-
- if (Out != &std::cout) delete Out;
- return 0;
-}