| # 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', '') |
| |
| return any([ |
| extra_config == 'GN', |
| extra_config == 'Fast', |
| extra_config.startswith('SK') |
| ]) |
| |
| 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', '') |
| |
| cc, cxx = 'cc', 'c++' |
| extra_cflags = [] |
| |
| if compiler == 'Clang': |
| cc, cxx = 'clang', 'clang++' |
| elif compiler == 'GCC': |
| cc, cxx = 'gcc', 'g++' |
| |
| ccache = self.m.run.ccache() |
| if ccache: |
| cc, cxx = '%s %s' % (ccache, cc), '%s %s' % (ccache, cxx) |
| if compiler == 'Clang': |
| # Stifle "argument unused during compilation: ..." warnings. |
| extra_cflags.append('-Qunused-arguments') |
| |
| if extra_config == 'Fast': |
| extra_cflags.extend(['-march=native', '-fomit-frame-pointer', '-O3']) |
| if extra_config.startswith('SK'): |
| extra_cflags.append('-D' + extra_config) |
| |
| quote = lambda x: '"%s"' % x |
| gn_args = ' '.join('%s=%s' % (k,v) for (k,v) in { |
| 'cc': quote(cc), |
| 'cxx': quote(cxx), |
| 'extra_cflags': quote(' '.join(extra_cflags)), |
| 'is_debug': 'true' if configuration == 'Debug' else 'false', |
| }.iteritems()) |
| |
| run = lambda title, cmd: self.m.run(self.m.step, title, cmd=cmd, |
| cwd=self.m.vars.skia_dir, **kwargs) |
| |
| run('fetch-gn', [self.m.vars.skia_dir.join('bin', 'fetch-gn')]) |
| run('gn gen', ['gn', 'gen', self.out_dir, '--args=' + gn_args]) |
| run('ninja', ['ninja', '-C', self.out_dir]) |