diff options
| -rwxr-xr-x | src/objective-c/tests/analyze_link_map.py | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/objective-c/tests/analyze_link_map.py b/src/objective-c/tests/analyze_link_map.py new file mode 100755 index 0000000000..48e3441087 --- /dev/null +++ b/src/objective-c/tests/analyze_link_map.py @@ -0,0 +1,78 @@ +#!/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) |