diff options
Diffstat (limited to 'tools/profiling/ios_bin/parse_link_map.py')
-rwxr-xr-x | tools/profiling/ios_bin/parse_link_map.py | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/tools/profiling/ios_bin/parse_link_map.py b/tools/profiling/ios_bin/parse_link_map.py new file mode 100755 index 0000000000..eaa1d6e060 --- /dev/null +++ b/tools/profiling/ios_bin/parse_link_map.py @@ -0,0 +1,104 @@ +#!/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 + + +def parse_link_map(filename): + table_tag = {} + state = "start" + + table_stats_symbol = {} + table_stats_dead = {} + section_total_size = 0 + symbol_total_size = 0 + + boringssl_size = 0 + core_size = 0 + objc_size = 0 + protobuf_size = 0 + + lines = list(open(filename)) + 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 + if 'BoringSSL' in target_stripped: + boringssl_size += size + elif 'libgRPC-Core' in target_stripped: + core_size += size + elif 'libgRPC-RxLibrary' in target_stripped or \ + 'libgRPC' in target_stripped or \ + 'libgRPC-ProtoLibrary' in target_stripped: + objc_size += size + elif 'libProtobuf' in target_stripped: + protobuf_size += size + + for target in table_stats_symbol: + symbol_total_size += table_stats_symbol[target] + + return core_size, objc_size, boringssl_size, protobuf_size, symbol_total_size + + +def main(): + filename = sys.argv[1] + core_size, objc_size, boringssl_size, protobuf_size, total_size = parse_link_map( + filename) + print('Core size:{:,}'.format(core_size)) + print('ObjC size:{:,}'.format(objc_size)) + print('BoringSSL size:{:,}'.format(boringssl_size)) + print('Protobuf size:{:,}\n'.format(protobuf_size)) + print('Total size:{:,}'.format(total_size)) + + +if __name__ == "__main__": + main() |