Supersize: Chrome-specific breakdowns, console tweaks

tools/binary_size/libsupersize/file_format.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.
 
 """Deals with loading & saving .size files."""
 
 import cStringIO
 import calendar
 import collections
 import datetime
@@ skipping 35 matching lines @@
   # Using an OrderedDict makes the indices more repetitive (better compression).
   path_tuples = collections.OrderedDict.fromkeys(
       (s.object_path, s.source_path) for s in size_info.symbols)
   for i, key in enumerate(path_tuples):
     path_tuples[key] = i
   file_obj.write('%d\n' % len(path_tuples))
   file_obj.writelines('%s\t%s\n' % pair for pair in path_tuples)
   _LogSize(file_obj, 'paths')  # For libchrome, adds 200kb.
 
   # Symbol counts by section.
-  by_section = models.SymbolGroup(size_info.symbols)
-  by_section = by_section.GroupBySectionName().SortedByName()
+  by_section = size_info.symbols.GroupBySectionName().Sorted(
+      key=lambda s:(s[0].IsBss(), s[0].address, s.name))
   file_obj.write('%s\n' % '\t'.join(g.name for g in by_section))
   file_obj.write('%s\n' % '\t'.join(str(len(g)) for g in by_section))
 
   def write_numeric(func, delta=False):
     for group in by_section:
       prev_value = 0
       last_sym = group[-1]
       for symbol in group:
         value = func(symbol)
         if delta:
@@ skipping 130 matching lines @@
     logging.debug('Serialization complete. Gzipping...')
     stringio.seek(0)
     with gzip.open(path, 'wb') as f:
       shutil.copyfileobj(stringio, f)
 
 
 def LoadSizeInfo(path):
   """Returns a SizeInfo loaded from |path|."""
   with gzip.open(path) as f:
     return _LoadSizeInfoFromFile(f)