Method linkImpl

rocclr/device/devprogram.cpp:658–753

================================================================================================

// ================================================================================================
bool Program::linkImpl(const std::vector<Program*>& inputPrograms, amd::option::Options* options,
                       bool createLibrary) {
  amd_comgr_data_set_t inputs;

  if (amd::Comgr::create_data_set(&inputs) != AMD_COMGR_STATUS_SUCCESS) {
    buildLog_ += "Error: COMGR fails to create data set.\n";
    return false;
  }

  size_t idx = 0;
  for (auto program : inputPrograms) {
    bool result = true;
    if (program->llvmBinary_.empty()) {
      result = (program->clBinary() != nullptr);
      if (result) {
        // We are using CL binary directly.
        // Setup elfIn() and try to load llvmIR from binary
        // This elfIn() will be released at the end of build by finiBuild().
        result = program->clBinary()->setElfIn();
      }

      if (result) {
        result =
            program->clBinary()->loadLlvmBinary(program->llvmBinary_, program->elfSectionType_);
      }
    }

    if (result) {
      result = (program->elfSectionType_ == amd::Elf::LLVMIR);
    }

    if (result) {
      std::string llvmName = "LLVM Binary " + std::to_string(idx);
      result = (addCodeObjData(program->llvmBinary_.data(), program->llvmBinary_.size(),
                               AMD_COMGR_DATA_KIND_BC, llvmName.c_str(),
                               &inputs) == AMD_COMGR_STATUS_SUCCESS);
    }

    if (!result) {
      amd::Comgr::destroy_data_set(inputs);
      buildLog_ += "Error: Linking bitcode failed: failing to generate LLVM binary.\n";
      return false;
    }

    idx++;

    // release elfIn() for the program
    program->clBinary()->resetElfIn();
  }

  // create the linked output
  amd_comgr_data_set_t output;
  if (amd::Comgr::create_data_set(&output) != AMD_COMGR_STATUS_SUCCESS) {
    buildLog_ += "Error: COMGR fails to create output buffer for LLVM bitcode.\n";
    amd::Comgr::destroy_data_set(inputs);
    return false;
  }