1 #!/usr/bin/env python 2 # 3 # Copyright 2016 Google Inc. 4 # 5 # Use of this source code is governed by a BSD-style license that can be 6 # found in the LICENSE file. 7 8 9 """Utils for running under *SAN""" 10 11 12 import default_flavor 13 import os 14 15 16 class XSanFlavorUtils(default_flavor.DefaultFlavorUtils): 17 def __init__(self, *args, **kwargs): 18 super(XSanFlavorUtils, self).__init__(*args, **kwargs) 19 self._sanitizer = { 20 # We'd love to just pass 'address,undefined' and get all the checks, but 21 # we're not anywhere close to being able to do that. Instead we start 22 # with a set of checks that we know pass or nearly pass. See here for 23 # more information: 24 # http://clang.llvm.org/docs/UsersManual.html#controlling-code-generation 25 'ASAN': ('address,bool,function,integer-divide-by-zero,nonnull-attribute,' 26 'null,object-size,return,returns-nonnull-attribute,shift,' 27 'signed-integer-overflow,unreachable,vla-bound,vptr'), 28 # MSAN and TSAN can't run together with ASAN, so they're their own bots. 29 'MSAN': 'memory', 30 'TSAN': 'thread', 31 }[self._bot_info.bot_cfg['extra_config']] 32 33 def compile(self, target): 34 cmd = [os.path.join(self._bot_info.skia_dir, 'tools', 'xsan_build'), 35 self._sanitizer, target] 36 self._bot_info.run(cmd) 37 38 def step(self, cmd, env=None, **kwargs): 39 """Wrapper for the Step API; runs a step as appropriate for this flavor.""" 40 lsan_suppressions = self._bot_info.skia_dir.join('tools', 'lsan.supp') 41 tsan_suppressions = self._bot_info.skia_dir.join('tools', 'tsan.supp') 42 ubsan_suppressions = self._bot_info.skia_dir.join('tools', 'ubsan.supp') 43 env = dict(env or {}) 44 env['ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1' 45 env['LSAN_OPTIONS'] = ('symbolize=1 print_suppressions=1 suppressions=%s' % 46 lsan_suppressions) 47 env['TSAN_OPTIONS'] = 'suppressions=%s' % tsan_suppressions 48 env['UBSAN_OPTIONS'] = 'suppressions=%s' % ubsan_suppressions 49 50 path_to_app = os.path.join(self._bot_info.out_dir, 51 self._bot_info.configuration, cmd[0]) 52 new_cmd = [path_to_app] 53 new_cmd.extend(cmd[1:]) 54 return self._bot_info.run(new_cmd, env=env, **kwargs) 55
