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# Copyright 2016 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.
import default_flavor
"""GN flavor utils, used for building Skia with GN."""
class GNFlavorUtils(default_flavor.DefaultFlavorUtils):
def supported(self):
extra_config = self.m.vars.builder_cfg.get('extra_config', '')
os = self.m.vars.builder_cfg.get('os', '')
target_arch = self.m.vars.builder_cfg.get('target_arch', '')
return any([
'SAN' in extra_config,
extra_config == 'Fast',
extra_config == 'GN',
extra_config.startswith('SK'),
os == 'Ubuntu' and target_arch == 'x86',
])
def _run(self, title, cmd, env=None, infra_step=False):
self.m.vars.default_env = {k: v for (k,v)
in self.m.vars.default_env.iteritems()
if k in ['PATH']}
self.m.run(self.m.step, title, cmd=cmd,
env=env, cwd=self.m.vars.skia_dir, infra_step=infra_step)
def compile(self, unused_target, **kwargs):
"""Build Skia with GN."""
compiler = self.m.vars.builder_cfg.get('compiler', '')
configuration = self.m.vars.builder_cfg.get('configuration', '')
extra_config = self.m.vars.builder_cfg.get('extra_config', '')
os = self.m.vars.builder_cfg.get('os', '')
target_arch = self.m.vars.builder_cfg.get('target_arch', '')
clang_linux = str(self.m.vars.slave_dir.join('clang_linux'))
cc, cxx = None, None
extra_cflags = []
extra_ldflags = []
if compiler == 'Clang' and os == 'Ubuntu':
cc = clang_linux + '/bin/clang'
cxx = clang_linux + '/bin/clang++'
extra_ldflags.append('-fuse-ld=lld')
elif compiler == 'Clang':
cc, cxx = 'clang', 'clang++'
elif compiler == 'GCC':
cc, cxx = 'gcc', 'g++'
if extra_config == 'Fast':
extra_cflags.extend(['-march=native', '-fomit-frame-pointer', '-O3'])
if extra_config.startswith('SK'):
extra_cflags.append('-D' + extra_config)
if extra_config == 'MSAN':
extra_ldflags.append('-L' + clang_linux + '/msan')
args = {}
if configuration != 'Debug':
args['is_debug'] = 'false'
if extra_config == 'MSAN':
args['skia_use_fontconfig'] = 'false'
for (k,v) in {
'cc': cc,
'cxx': cxx,
'extra_cflags': ' '.join(extra_cflags),
'extra_ldflags': ' '.join(extra_ldflags),
'sanitize': extra_config if 'SAN' in extra_config else '',
'target_cpu': 'x86' if target_arch == 'x86' else '',
}.iteritems():
if v:
args[k] = '"%s"' % v
gn_args = ' '.join('%s=%s' % (k,v) for (k,v) in sorted(args.iteritems()))
self._run('fetch-gn', [self.m.vars.skia_dir.join('bin', 'fetch-gn')],
infra_step=True)
self._run('gn gen', ['gn', 'gen', self.out_dir, '--args=' + gn_args])
self._run('ninja', ['ninja', '-C', self.out_dir])
def step(self, name, cmd, env=None, **kwargs):
app = self.m.vars.skia_out.join(self.m.vars.configuration, cmd[0])
cmd = [app] + cmd[1:]
env = {}
clang_linux = str(self.m.vars.slave_dir.join('clang_linux'))
extra_config = self.m.vars.builder_cfg.get('extra_config', '')
if 'SAN' in extra_config:
# Sanitized binaries may want to run clang_linux/bin/llvm-symbolizer.
self.m.vars.default_env['PATH'] = '%%(PATH)s:%s' % clang_linux + '/bin'
elif 'Ubuntu' == self.m.vars.builder_cfg.get('os', ''):
cmd = ['catchsegv'] + cmd
if 'ASAN' == extra_config:
env[ 'ASAN_OPTIONS'] = 'symbolize=1 detect_leaks=1'
env[ 'LSAN_OPTIONS'] = 'symbolize=1 print_suppressions=1'
env['UBSAN_OPTIONS'] = 'symbolize=1 print_stacktrace=1'
if 'MSAN' == extra_config:
# Find the MSAN-built libc++.
env['LD_LIBRARY_PATH'] = clang_linux + '/msan'
self._run(name, cmd, env=env)
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