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# 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)
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