| # Copyright 2014 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| |
| """Utils for running under *SAN""" |
| |
| |
| import default_flavor |
| |
| |
| class XSanFlavorUtils(default_flavor.DefaultFlavorUtils): |
| def __init__(self, *args, **kwargs): |
| super(XSanFlavorUtils, self).__init__(*args, **kwargs) |
| self._sanitizer = { |
| # We'd love to just pass 'address,undefined' and get all the checks, but |
| # we're not anywhere close to being able to do that. Instead we start |
| # with a set of checks that we know pass or nearly pass. See here for |
| # more information: |
| # http://clang.llvm.org/docs/UsersManual.html#controlling-code-generation |
| 'ASAN': ('address,bool,function,integer-divide-by-zero,nonnull-attribute,' |
| 'null,object-size,return,returns-nonnull-attribute,shift,' |
| 'signed-integer-overflow,unreachable,vla-bound,vptr'), |
| # MSAN and TSAN can't run together with ASAN, so they're their own bots. |
| 'MSAN': 'memory', |
| 'TSAN': 'thread', |
| }[self._skia_api.builder_cfg['extra_config'].replace('Swarming', '')] |
| |
| def compile(self, target): |
| cmd = [self._skia_api.skia_dir.join('tools', 'xsan_build'), |
| self._sanitizer, target] |
| self._skia_api.run(self._skia_api.m.step, 'build %s' % target, cmd=cmd, |
| cwd=self._skia_api.skia_dir) |
| |
| def copy_extra_build_products(self, swarming_out_dir): |
| # Include msan_out if MSAN. |
| if 'MSAN' in self._skia_api.builder_cfg['extra_config']: |
| msan_out = self._skia_api.m.path.join( |
| 'third_party', 'externals', 'llvm', 'msan_out') |
| self._skia_api.m.file.copytree( |
| 'copy msan_out', |
| self._skia_api.skia_dir.join(msan_out), |
| swarming_out_dir.join(msan_out), |
| symlinks=True) |
| # Include llvm_symbolizer from the Chromium DEPS so that suppressions work |
| # by symbol name. |
| # TODO(benjaminwagner): Figure out how to add this to Skia DEPS for |
| # target_os 'llvm'. |
| self._skia_api.m.file.copytree( |
| 'copy llvm-build', |
| self._skia_api.checkout_root.join('src', 'third_party', 'llvm-build'), |
| swarming_out_dir.join('llvm-build'), |
| symlinks=True) |
| |
| def step(self, name, cmd, env=None, **kwargs): |
| """Wrapper for the Step API; runs a step as appropriate for this flavor.""" |
| skia_dir = self._skia_api.skia_dir |
| lsan_suppressions = skia_dir.join('tools', 'lsan.supp') |
| tsan_suppressions = skia_dir.join('tools', 'tsan.supp') |
| ubsan_suppressions = skia_dir.join('tools', 'ubsan.supp') |
| env = dict(env or {}) |
| env['ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1' |
| env['LSAN_OPTIONS'] = ('symbolize=1 print_suppressions=1 suppressions=%s' % |
| lsan_suppressions) |
| env['TSAN_OPTIONS'] = 'suppressions=%s' % tsan_suppressions |
| env['UBSAN_OPTIONS'] = 'suppressions=%s' % ubsan_suppressions |
| self._skia_api.default_env['PATH'] = '%%(PATH)s:%s' % ( |
| self._skia_api.slave_dir.join('llvm-build', 'Release+Asserts', 'bin')) |
| env['LD_LIBRARY_PATH'] = self._skia_api.slave_dir.join( |
| 'third_party', 'externals', 'llvm', 'msan_out', 'lib') |
| |
| path_to_app = self.out_dir.join(cmd[0]) |
| new_cmd = [path_to_app] |
| new_cmd.extend(cmd[1:]) |
| return self._skia_api.run(self._skia_api.m.step, name, cmd=new_cmd, env=env, |
| **kwargs) |
