| #include "llvm/Bitcode/ReaderWriter.h" |
| #include "llvm/IR/Function.h" |
| #include "llvm/IR/GlobalVariable.h" |
| #include "llvm/IR/LLVMContext.h" |
| #include "llvm/IR/Module.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/ManagedStatic.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include "llvm/Support/ErrorOr.h" |
| #include "llvm/Support/ToolOutputFile.h" |
| #include "llvm/Config/config.h" |
| |
| #define LLVM_350_AND_NEWER \ |
| (LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 5)) |
| |
| #if LLVM_350_AND_NEWER |
| #include <system_error> |
| |
| #define ERROR_CODE std::error_code |
| #define UNIQUE_PTR std::unique_ptr |
| #else |
| #include "llvm/ADT/OwningPtr.h" |
| #include "llvm/Support/system_error.h" |
| |
| #define ERROR_CODE error_code |
| #define UNIQUE_PTR OwningPtr |
| #endif |
| |
| using namespace llvm; |
| |
| static cl::opt<std::string> |
| InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-")); |
| |
| static cl::opt<std::string> |
| OutputFilename("o", cl::desc("Output filename"), |
| cl::value_desc("filename")); |
| |
| int main(int argc, char **argv) { |
| LLVMContext &Context = getGlobalContext(); |
| llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. |
| |
| cl::ParseCommandLineOptions(argc, argv, "libclc builtin preparation tool\n"); |
| |
| std::string ErrorMessage; |
| std::auto_ptr<Module> M; |
| |
| { |
| #if LLVM_350_AND_NEWER |
| ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr = |
| MemoryBuffer::getFile(InputFilename); |
| std::unique_ptr<MemoryBuffer> &BufferPtr = BufferOrErr.get(); |
| if (std::error_code ec = BufferOrErr.getError()) |
| #else |
| UNIQUE_PTR<MemoryBuffer> BufferPtr; |
| if (ERROR_CODE ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) |
| #endif |
| ErrorMessage = ec.message(); |
| else { |
| #if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4) |
| ErrorOr<Module *> ModuleOrErr = parseBitcodeFile(BufferPtr.get(), Context); |
| if (ERROR_CODE ec = ModuleOrErr.getError()) |
| ErrorMessage = ec.message(); |
| M.reset(ModuleOrErr.get()); |
| #else |
| M.reset(ParseBitcodeFile(BufferPtr.get(), Context, &ErrorMessage)); |
| #endif |
| } |
| } |
| |
| if (M.get() == 0) { |
| errs() << argv[0] << ": "; |
| if (ErrorMessage.size()) |
| errs() << ErrorMessage << "\n"; |
| else |
| errs() << "bitcode didn't read correctly.\n"; |
| return 1; |
| } |
| |
| // Set linkage of every external definition to linkonce_odr. |
| for (Module::iterator i = M->begin(), e = M->end(); i != e; ++i) { |
| if (!i->isDeclaration() && i->getLinkage() == GlobalValue::ExternalLinkage) |
| i->setLinkage(GlobalValue::LinkOnceODRLinkage); |
| } |
| |
| for (Module::global_iterator i = M->global_begin(), e = M->global_end(); |
| i != e; ++i) { |
| if (!i->isDeclaration() && i->getLinkage() == GlobalValue::ExternalLinkage) |
| i->setLinkage(GlobalValue::LinkOnceODRLinkage); |
| } |
| |
| if (OutputFilename.empty()) { |
| errs() << "no output file\n"; |
| return 1; |
| } |
| |
| std::string ErrorInfo; |
| UNIQUE_PTR<tool_output_file> Out |
| (new tool_output_file(OutputFilename.c_str(), ErrorInfo, |
| #if (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR == 4) |
| sys::fs::F_Binary)); |
| #elif LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 5) |
| sys::fs::F_None)); |
| #else |
| raw_fd_ostream::F_Binary)); |
| #endif |
| if (!ErrorInfo.empty()) { |
| errs() << ErrorInfo << '\n'; |
| exit(1); |
| } |
| |
| WriteBitcodeToFile(M.get(), Out->os()); |
| |
| // Declare success. |
| Out->keep(); |
| return 0; |
| } |
| |