1 # Copyright 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import logging 6 7 from autotest_lib.client.bin import utils 8 9 10 _ASAN_SYMBOL = "__asan_init" 11 12 13 def running_on_asan(binary="debugd"): 14 """Returns whether we're running on ASan. 15 16 @param binary: file to test for ASan symbols. 17 """ 18 # -q, --quiet * Only output 'bad' things 19 # -F, --format <arg> * Use specified format for output 20 # -g, --gmatch * Use regex rather than string compare (with -s) 21 # -s, --symbol <arg> * Find a specified symbol 22 scanelf_command = "scanelf -qF'%s#F'" 23 scanelf_command += " -gs %s `which %s`" % (_ASAN_SYMBOL, binary) 24 symbol = utils.system_output(scanelf_command) 25 logging.debug("running_on_asan(): symbol: '%s', _ASAN_SYMBOL: '%s'", 26 symbol, _ASAN_SYMBOL) 27 return symbol != "" 28
