Create a star symbol for gaps at the start & end of sections

tools/binary_size/libsupersize/archive.py

 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Main Python API for analyzing binary size."""
 
 import argparse
 import calendar
 import collections
 import datetime
@@ skipping 419 matching lines @@
     # (e.g. inline functions), and to update the object_path / source_path
     # fields accordingly.
     # Looking in object files is required because the .map file choses a
     # single path for these symbols.
     # Rather than record all paths for each symbol, set the paths to be the
     # common ancestor of all paths.
     if output_directory:
       bulk_analyzer = nm.BulkObjectFileAnalyzer(tool_prefix, output_directory)
       bulk_analyzer.AnalyzePaths(elf_object_paths)
 
+  logging.info('Parsing Linker Map')
   with _OpenMaybeGz(map_path) as map_file:
     section_sizes, raw_symbols = (
         linker_map_parser.MapFileParser().Parse(map_file))
 
   if elf_path:
     logging.debug('Validating section sizes')
     elf_section_sizes = _SectionSizesFromElf(elf_path, tool_prefix)
     for k, v in elf_section_sizes.iteritems():
       if v != section_sizes.get(k):
         logging.error('ELF file and .map file do not agree on section sizes.')
@@ skipping 220 matching lines @@
           logging.warning('Packed section not present: %s', packed_section_name)
         else:
           size_info.section_sizes['%s (unpacked)' % packed_section_name] = (
               unstripped_section_sizes.get(packed_section_name))
 
   logging.info('Recording metadata: \n  %s',
                '\n  '.join(describe.DescribeMetadata(size_info.metadata)))
   logging.info('Saving result to %s', args.size_file)
   file_format.SaveSizeInfo(size_info, args.size_file)
   logging.info('Done')