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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) | |
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