llvm/utils/gn/build/driver_executable.gni

import("//llvm/utils/gn/build/write_cmake_config.gni")

# Corresponds to GENERATE_DRIVER in cmake (see add_llvm_executable in
# llvm/cmake/modules/AddLLVM.cmake).
template("driver_executable") {
  tool_name = string_replace(target_name, "-", "_")
  if (defined(invoker.needs_posix_utility_signal_handling) &&
      invoker.needs_posix_utility_signal_handling) {
    initllvm_args = ", /*InstallPipeSignalExitHandler=*/true, /*NeedsPOSIXUtilitySignalHandling=*/true"
  } else {
    initllvm_args = ""
  }

  write_cmake_config("${tool_name}-driver") {
    input = "//llvm/cmake/modules/llvm-driver-template.cpp.in"
    output = "$target_gen_dir/${tool_name}-driver.cpp"
    values = [
      "TOOL_NAME=$tool_name",
      "INITLLVM_ARGS=$initllvm_args",
    ]
  }

  executable(target_name) {
    forward_variables_from(invoker, "*")
    deps += [ ":${tool_name}-driver" ]
    sources += [ "$target_gen_dir/${tool_name}-driver.cpp" ]
  }
}

set_defaults("driver_executable") {
  configs = shared_binary_target_configs
}