| #!/usr/bin/python |
| # Copyright 2018 gRPC authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # This script analyzes link map file generated by Xcode. It calculates and |
| # prints out the sizes of each dependent library and the total sizes of the |
| # symbols. |
| # The script takes one parameter, which is the path to the link map file. |
| |
| import sys |
| import re |
| |
| table_tag = {} |
| state = "start" |
| |
| table_stats_symbol = {} |
| table_stats_dead = {} |
| section_total_size = 0 |
| symbol_total_size = 0 |
| |
| |
| file_import = sys.argv[1] |
| lines = list(open(file_import)) |
| for line in lines: |
| line_stripped = line[:-1] |
| if "# Object files:" == line_stripped: |
| state = "object" |
| continue |
| elif "# Sections:" == line_stripped: |
| state = "section" |
| continue |
| elif "# Symbols:" == line_stripped: |
| state = "symbol" |
| continue |
| elif "# Dead Stripped Symbols:" == line_stripped: |
| state = "dead" |
| continue |
| |
| if state == "object": |
| segs = re.search('(\[ *[0-9]*\]) (.*)', line_stripped) |
| table_tag[segs.group(1)] = segs.group(2) |
| |
| if state == "section": |
| if len(line_stripped) == 0 or line_stripped[0] == '#': |
| continue |
| segs = re.search('^(.+?)\s+(.+?)\s+.*', line_stripped) |
| section_total_size += int(segs.group(2), 16) |
| |
| if state == "symbol": |
| if len(line_stripped) == 0 or line_stripped[0] == '#': |
| continue |
| segs = re.search('^.+?\s+(.+?)\s+(\[.+?\]).*', line_stripped) |
| target = table_tag[segs.group(2)] |
| target_stripped = re.search('^(.*?)(\(.+?\))?$', target).group(1) |
| size = int(segs.group(1), 16) |
| if not target_stripped in table_stats_symbol: |
| table_stats_symbol[target_stripped] = 0 |
| table_stats_symbol[target_stripped] += size |
| |
| print("Sections total size: %d" % section_total_size) |
| |
| for target in table_stats_symbol: |
| print(target) |
| print(table_stats_symbol[target]) |
| symbol_total_size += table_stats_symbol[target] |
| |
| print("Symbols total size: %d" % symbol_total_size) |