Function compile_source_file

emcc.py:562–588

(input_file)

    return in_temp(uniquename(objfile))

  def compile_source_file(input_file):
    logger.debug(f'compiling source file: {input_file}')
    output_file = get_object_filename(input_file)
    ext = get_file_suffix(input_file)
    if ext in ASSEMBLY_EXTENSIONS:
      cmd = get_clang_command_asm()
    elif ext in PREPROCESSED_EXTENSIONS:
      cmd = get_clang_command_preprocessed()
    else:
      cmd = get_clang_command()
      if ext == '.pcm':
        cmd = [c for c in cmd if not c.startswith('-fprebuilt-module-path=')]
    cmd += [*compile_args, '-c', input_file, '-o', output_file]
    if options.requested_debug == '-gsplit-dwarf':
      # When running in COMPILE_AND_LINK mode we compile objects to a temporary location
      # but we want the `.dwo` file to be generated in the current working directory,
      # like it is under clang.  We could avoid this hack if we use the clang driver
      # to generate the temporary files, but that would also involve using the clang
      # driver to perform linking which would be a big change.
      cmd += ['-Xclang', '-split-dwarf-file', '-Xclang', unsuffixed_basename(input_file) + '.dwo']
      cmd += ['-Xclang', '-split-dwarf-output', '-Xclang', unsuffixed_basename(input_file) + '.dwo']
    shared.check_call(cmd)
    if not shared.SKIP_SUBPROCS:
      assert os.path.exists(output_file)
      if options.save_temps:
        shutil.copyfile(output_file, utils.unsuffixed_basename(input_file) + '.o')
    return output_file

  # Compile input files individually to temporary locations.
  for arg in linker_args: