Method WriteDeviceLinkRule

Source/cmMakefileTargetGenerator.cxx:1611–1736

}

void cmMakefileTargetGenerator::WriteDeviceLinkRule(
  std::vector<std::string>& commands, std::string const& output)
{
  std::string architecturesStr =
    this->GeneratorTarget->GetSafeProperty("CUDA_ARCHITECTURES");

  if (cmIsOff(architecturesStr)) {
    this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
                                 "CUDA_SEPARABLE_COMPILATION on Clang "
                                 "requires CUDA_ARCHITECTURES to be set.");
    return;
  }

  cmLocalUnixMakefileGenerator3* localGen{ this->LocalGenerator };
  cmList architectures{ architecturesStr };
  std::string const& relPath = localGen->GetHomeRelativeOutputPath();

  // Ensure there are no duplicates.
  std::vector<std::string> const linkDeps = [&]() -> std::vector<std::string> {
    std::vector<std::string> deps;
    this->AppendTargetDepends(deps, true);
    this->GeneratorTarget->GetLinkDepends(deps, this->GetConfigName(), "CUDA");

    for (std::string const& obj : this->Objects) {
      deps.emplace_back(cmStrCat(relPath, obj));
    }

    std::unordered_set<std::string> const depsSet(deps.begin(), deps.end());
    deps.clear();
    std::copy(depsSet.begin(), depsSet.end(), std::back_inserter(deps));
    return deps;
  }();

  std::string const objectDir = this->GeneratorTarget->ObjectDirectory;
  std::string const relObjectDir =
    localGen->MaybeRelativeToCurBinDir(objectDir);

  // Construct a list of files associated with this executable that
  // may need to be cleaned.
  std::vector<std::string> cleanFiles;
  cleanFiles.push_back(localGen->MaybeRelativeToCurBinDir(output));

  std::string profiles;
  std::vector<std::string> fatbinaryDepends;
  std::string const registerFile =
    cmStrCat(objectDir, "cmake_cuda_register.h");

  // Link device code for each architecture.
  for (std::string const& architectureKind : architectures) {
    std::string registerFileCmd;

    // The generated register file contains macros that when expanded
    // register the device routines. Because the routines are the same for
    // all architectures the register file will be the same too. Thus
    // generate it only on the first invocation to reduce overhead.
    if (fatbinaryDepends.empty()) {
      std::string const registerFileRel =
        cmStrCat(relPath, relObjectDir, "cmake_cuda_register.h");