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1 # Copyright 2014 The Chromium 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 | |
6 """Utils for running under *SAN""" | |
7 | |
8 | |
9 import default_flavor | |
10 | |
11 | |
12 class XSanFlavorUtils(default_flavor.DefaultFlavorUtils): | |
13 def __init__(self, *args, **kwargs): | |
14 super(XSanFlavorUtils, self).__init__(*args, **kwargs) | |
15 self._sanitizer = { | |
16 # We'd love to just pass 'address,undefined' and get all the checks, but | |
17 # we're not anywhere close to being able to do that. Instead we start | |
18 # with a set of checks that we know pass or nearly pass. See here for | |
19 # more information: | |
20 # http://clang.llvm.org/docs/UsersManual.html#controlling-code-generation | |
21 'ASAN': ('address,bool,function,integer-divide-by-zero,nonnull-attribute,' | |
22 'null,object-size,return,returns-nonnull-attribute,shift,' | |
23 'signed-integer-overflow,unreachable,vla-bound,vptr'), | |
24 # MSAN and TSAN can't run together with ASAN, so they're their own bots. | |
25 'MSAN': 'memory', | |
26 'TSAN': 'thread', | |
27 }[self._skia_api.builder_cfg['extra_config'].replace('Swarming', '')] | |
28 | |
29 def compile(self, target): | |
30 cmd = [self._skia_api.skia_dir.join('tools', 'xsan_build'), | |
31 self._sanitizer, target] | |
32 self._skia_api.run(self._skia_api.m.step, 'build %s' % target, cmd=cmd, | |
33 cwd=self._skia_api.skia_dir) | |
34 | |
35 def copy_extra_build_products(self, swarming_out_dir): | |
36 # Include msan_out if MSAN. | |
37 if 'MSAN' in self._skia_api.builder_cfg['extra_config']: | |
38 msan_out = self._skia_api.m.path.join( | |
39 'third_party', 'externals', 'llvm', 'msan_out') | |
40 self._skia_api.m.file.copytree( | |
41 'copy msan_out', | |
42 self._skia_api.skia_dir.join(msan_out), | |
43 swarming_out_dir.join(msan_out), | |
44 symlinks=True) | |
45 # Include llvm_symbolizer from the Chromium DEPS so that suppressions work | |
46 # by symbol name. | |
47 # TODO(benjaminwagner): Figure out how to add this to Skia DEPS for | |
48 # target_os 'llvm'. | |
49 self._skia_api.m.file.copytree( | |
50 'copy llvm-build', | |
51 self._skia_api.checkout_root.join('src', 'third_party', 'llvm-build'), | |
52 swarming_out_dir.join('llvm-build'), | |
53 symlinks=True) | |
54 | |
55 def step(self, name, cmd, env=None, **kwargs): | |
56 """Wrapper for the Step API; runs a step as appropriate for this flavor.""" | |
57 skia_dir = self._skia_api.skia_dir | |
58 lsan_suppressions = skia_dir.join('tools', 'lsan.supp') | |
59 tsan_suppressions = skia_dir.join('tools', 'tsan.supp') | |
60 ubsan_suppressions = skia_dir.join('tools', 'ubsan.supp') | |
61 env = dict(env or {}) | |
62 env['ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1' | |
63 env['LSAN_OPTIONS'] = ('symbolize=1 print_suppressions=1 suppressions=%s' % | |
64 lsan_suppressions) | |
65 env['TSAN_OPTIONS'] = 'suppressions=%s' % tsan_suppressions | |
66 env['UBSAN_OPTIONS'] = 'suppressions=%s' % ubsan_suppressions | |
67 self._skia_api.default_env['PATH'] = '%%(PATH)s:%s' % ( | |
68 self._skia_api.slave_dir.join('llvm-build', 'Release+Asserts', 'bin')) | |
69 env['LD_LIBRARY_PATH'] = self._skia_api.slave_dir.join( | |
70 'third_party', 'externals', 'llvm', 'msan_out', 'lib') | |
71 | |
72 path_to_app = self.out_dir.join(cmd[0]) | |
73 new_cmd = [path_to_app] | |
74 new_cmd.extend(cmd[1:]) | |
75 return self._skia_api.run(self._skia_api.m.step, name, cmd=new_cmd, env=env, | |
76 **kwargs) | |
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