1#!/usr/bin/env python 2 3# Copyright (c) 2012 The Chromium Authors. All rights reserved. 4# Use of this source code is governed by a BSD-style license that can be 5# found in the LICENSE file. 6 7from third_party import asan_symbolize 8 9import os 10import re 11import sys 12 13def fix_filename(file_name): 14 for path_to_cut in sys.argv[1:]: 15 file_name = re.sub(".*" + path_to_cut, "", file_name) 16 file_name = re.sub(".*asan_[a-z_]*.cc:[0-9]*", "_asan_rtl_", file_name) 17 file_name = re.sub(".*crtstuff.c:0", "???:0", file_name) 18 return file_name 19 20class LineBuffered(object): 21 """Disable buffering on a file object.""" 22 def __init__(self, stream): 23 self.stream = stream 24 25 def write(self, data): 26 self.stream.write(data) 27 if '\n' in data: 28 self.stream.flush() 29 30 def __getattr__(self, attr): 31 return getattr(self.stream, attr) 32 33 34def disable_buffering(): 35 """Makes this process and child processes stdout unbuffered.""" 36 if not os.environ.get('PYTHONUNBUFFERED'): 37 # Since sys.stdout is a C++ object, it's impossible to do 38 # sys.stdout.write = lambda... 39 sys.stdout = LineBuffered(sys.stdout) 40 os.environ['PYTHONUNBUFFERED'] = 'x' 41 42 43def main(): 44 disable_buffering() 45 asan_symbolize.demangle = True 46 loop = asan_symbolize.SymbolizationLoop(binary_name_filter=fix_filename) 47 loop.process_stdin() 48 49if __name__ == '__main__': 50 main() 51