Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(365)

Side by Side Diff: tools/binary_size/libsupersize/file_format.py

Issue 2870743003: supersize: Add symbol.template_name, and strip <>s from symbol.name (Closed)
Patch Set: canned query Created 3 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
1 # Copyright 2017 The Chromium Authors. All rights reserved. 1 # Copyright 2017 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be 2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file. 3 # found in the LICENSE file.
4 4
5 """Deals with loading & saving .size files.""" 5 """Deals with loading & saving .size files."""
6 6
7 import cStringIO 7 import cStringIO
8 import calendar 8 import calendar
9 import collections 9 import collections
10 import datetime 10 import datetime
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after
46 # Using an OrderedDict makes the indices more repetitive (better compression). 46 # Using an OrderedDict makes the indices more repetitive (better compression).
47 path_tuples = collections.OrderedDict.fromkeys( 47 path_tuples = collections.OrderedDict.fromkeys(
48 (s.object_path, s.source_path) for s in size_info.symbols) 48 (s.object_path, s.source_path) for s in size_info.symbols)
49 for i, key in enumerate(path_tuples): 49 for i, key in enumerate(path_tuples):
50 path_tuples[key] = i 50 path_tuples[key] = i
51 file_obj.write('%d\n' % len(path_tuples)) 51 file_obj.write('%d\n' % len(path_tuples))
52 file_obj.writelines('%s\t%s\n' % pair for pair in path_tuples) 52 file_obj.writelines('%s\t%s\n' % pair for pair in path_tuples)
53 _LogSize(file_obj, 'paths') # For libchrome, adds 200kb. 53 _LogSize(file_obj, 'paths') # For libchrome, adds 200kb.
54 54
55 # Symbol counts by section. 55 # Symbol counts by section.
56 by_section = size_info.symbols.GroupBySectionName().Sorted( 56 by_section = size_info.symbols.GroupedBySectionName().Sorted(
57 key=lambda s:(s[0].IsBss(), s[0].address, s.name)) 57 key=lambda s:(s[0].IsBss(), s[0].address, s.full_name))
58 file_obj.write('%s\n' % '\t'.join(g.name for g in by_section)) 58 file_obj.write('%s\n' % '\t'.join(g.name for g in by_section))
59 file_obj.write('%s\n' % '\t'.join(str(len(g)) for g in by_section)) 59 file_obj.write('%s\n' % '\t'.join(str(len(g)) for g in by_section))
60 60
61 def write_numeric(func, delta=False): 61 def write_numeric(func, delta=False):
62 for group in by_section: 62 for group in by_section:
63 prev_value = 0 63 prev_value = 0
64 last_sym = group[-1] 64 last_sym = group[-1]
65 for symbol in group: 65 for symbol in group:
66 value = func(symbol) 66 value = func(symbol)
67 if delta: 67 if delta:
68 value, prev_value = value - prev_value, value 68 value, prev_value = value - prev_value, value
69 file_obj.write(str(value)) 69 file_obj.write(str(value))
70 if symbol is not last_sym: 70 if symbol is not last_sym:
71 file_obj.write(' ') 71 file_obj.write(' ')
72 file_obj.write('\n') 72 file_obj.write('\n')
73 73
74 write_numeric(lambda s: s.address, delta=True) 74 write_numeric(lambda s: s.address, delta=True)
75 _LogSize(file_obj, 'addresses') # For libchrome, adds 300kb. 75 _LogSize(file_obj, 'addresses') # For libchrome, adds 300kb.
76 # Do not write padding, it will be recalcualted from addresses on load. 76 # Do not write padding, it will be recalcualted from addresses on load.
77 write_numeric(lambda s: s.size_without_padding) 77 write_numeric(lambda s: s.size_without_padding)
78 _LogSize(file_obj, 'sizes') # For libchrome, adds 300kb 78 _LogSize(file_obj, 'sizes') # For libchrome, adds 300kb
79 write_numeric(lambda s: path_tuples[(s.object_path, s.source_path)], 79 write_numeric(lambda s: path_tuples[(s.object_path, s.source_path)],
80 delta=True) 80 delta=True)
81 _LogSize(file_obj, 'path indices') # For libchrome: adds 125kb. 81 _LogSize(file_obj, 'path indices') # For libchrome: adds 125kb.
82 82
83 prev_aliases = None 83 prev_aliases = None
84 for group in by_section: 84 for group in by_section:
85 for symbol in group: 85 for symbol in group:
86 # Do not write name when full_name exists. It will be derived on load. 86 file_obj.write(symbol.full_name)
87 file_obj.write(symbol.full_name or symbol.name)
88 if symbol.aliases and symbol.aliases is not prev_aliases: 87 if symbol.aliases and symbol.aliases is not prev_aliases:
89 file_obj.write('\t0%x' % symbol.num_aliases) 88 file_obj.write('\t0%x' % symbol.num_aliases)
90 prev_aliases = symbol.aliases 89 prev_aliases = symbol.aliases
91 if symbol.flags: 90 if symbol.flags:
92 file_obj.write('\t%x' % symbol.flags) 91 file_obj.write('\t%x' % symbol.flags)
93 file_obj.write('\n') 92 file_obj.write('\n')
94 _LogSize(file_obj, 'names (final)') # For libchrome: adds 3.5mb. 93 _LogSize(file_obj, 'names (final)') # For libchrome: adds 3.5mb.
95 94
96 95
97 def _LoadSizeInfoFromFile(file_obj): 96 def _LoadSizeInfoFromFile(file_obj):
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
144 143
145 if len(parts) == 3: 144 if len(parts) == 3:
146 aliases_part = parts[1] 145 aliases_part = parts[1]
147 flags_part = parts[2] 146 flags_part = parts[2]
148 elif len(parts) == 2: 147 elif len(parts) == 2:
149 if parts[1][0] == '0': 148 if parts[1][0] == '0':
150 aliases_part = parts[1] 149 aliases_part = parts[1]
151 else: 150 else:
152 flags_part = parts[1] 151 flags_part = parts[1]
153 152
154 name = parts[0] 153 full_name = parts[0]
155 flags = int(flags_part, 16) if flags_part else 0 154 flags = int(flags_part, 16) if flags_part else 0
156 num_aliases = int(aliases_part, 16) if aliases_part else 0 155 num_aliases = int(aliases_part, 16) if aliases_part else 0
157 156
158 new_sym = models.Symbol.__new__(models.Symbol) 157 new_sym = models.Symbol.__new__(models.Symbol)
159 new_sym.section_name = cur_section_name 158 new_sym.section_name = cur_section_name
160 new_sym.address = addresses[section_index][i] 159 new_sym.address = addresses[section_index][i]
161 new_sym.size = sizes[section_index][i] 160 new_sym.size = sizes[section_index][i]
162 new_sym.name = name 161 new_sym.full_name = full_name
163 paths = path_tuples[path_indices[section_index][i]] 162 paths = path_tuples[path_indices[section_index][i]]
164 new_sym.object_path = paths[0] 163 new_sym.object_path = paths[0]
165 new_sym.source_path = paths[1] 164 new_sym.source_path = paths[1]
166 new_sym.flags = flags 165 new_sym.flags = flags
167 new_sym.padding = 0 # Derived 166 new_sym.padding = 0 # Derived
168 new_sym.full_name = None # Derived 167 new_sym.template_name = '' # Derived
168 new_sym.name = '' # Derived
169 169
170 if num_aliases: 170 if num_aliases:
171 assert alias_counter == 0 171 assert alias_counter == 0
172 new_sym.aliases = [new_sym] 172 new_sym.aliases = [new_sym]
173 alias_counter = num_aliases - 1 173 alias_counter = num_aliases - 1
174 elif alias_counter > 0: 174 elif alias_counter > 0:
175 new_sym.aliases = raw_symbols[symbol_idx - 1].aliases 175 new_sym.aliases = raw_symbols[symbol_idx - 1].aliases
176 new_sym.aliases.append(new_sym) 176 new_sym.aliases.append(new_sym)
177 alias_counter -= 1 177 alias_counter -= 1
178 else: 178 else:
179 new_sym.aliases = None 179 new_sym.aliases = None
180 180
181 raw_symbols[symbol_idx] = new_sym 181 raw_symbols[symbol_idx] = new_sym
182 symbol_idx += 1 182 symbol_idx += 1
183 183
184 return models.SizeInfo(section_sizes, models.SymbolGroup(raw_symbols), 184 return models.SizeInfo(section_sizes, raw_symbols, metadata=metadata)
185 metadata=metadata)
186 185
187 186
188 def SaveSizeInfo(size_info, path): 187 def SaveSizeInfo(size_info, path):
189 """Saves |size_info| to |path}.""" 188 """Saves |size_info| to |path}."""
190 if os.environ.get('SUPERSIZE_MEASURE_GZIP') == '1': 189 if os.environ.get('SUPERSIZE_MEASURE_GZIP') == '1':
191 with gzip.open(path, 'wb') as f: 190 with gzip.open(path, 'wb') as f:
192 _SaveSizeInfoToFile(size_info, f) 191 _SaveSizeInfoToFile(size_info, f)
193 else: 192 else:
194 # It is seconds faster to do gzip in a separate step. 6s -> 3.5s. 193 # It is seconds faster to do gzip in a separate step. 6s -> 3.5s.
195 stringio = cStringIO.StringIO() 194 stringio = cStringIO.StringIO()
196 _SaveSizeInfoToFile(size_info, stringio) 195 _SaveSizeInfoToFile(size_info, stringio)
197 196
198 logging.debug('Serialization complete. Gzipping...') 197 logging.debug('Serialization complete. Gzipping...')
199 stringio.seek(0) 198 stringio.seek(0)
200 with gzip.open(path, 'wb') as f: 199 with gzip.open(path, 'wb') as f:
201 shutil.copyfileobj(stringio, f) 200 shutil.copyfileobj(stringio, f)
202 201
203 202
204 def LoadSizeInfo(path): 203 def LoadSizeInfo(path):
205 """Returns a SizeInfo loaded from |path|.""" 204 """Returns a SizeInfo loaded from |path|."""
206 with gzip.open(path) as f: 205 with gzip.open(path) as f:
207 return _LoadSizeInfoFromFile(f) 206 return _LoadSizeInfoFromFile(f)
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698