dart-sdk/tools/gn.py
Alexander Aprelev 1d50f112dc Flutter and Fuchsia build stripped down [platform] version of dart sdk, so make it default(while standalone builds full dart sdk)
Both Flutter and Fuchsia expect stripped dart in standard out directory, so make that default too(while standalone build puts stripped into exe.stripped/).

BUG=
R=zra@google.com

Review-Url: https://codereview.chromium.org/2998503002 .
2017-08-08 14:42:11 -07:00

496 lines
15 KiB
Python
Executable file

#!/usr/bin/env python
# Copyright 2016 The Dart project 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 argparse
import multiprocessing
import os
import shutil
import subprocess
import sys
import time
import utils
HOST_OS = utils.GuessOS()
HOST_ARCH = utils.GuessArchitecture()
SCRIPT_DIR = os.path.dirname(sys.argv[0])
DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..'))
GN = os.path.join(DART_ROOT, 'buildtools', 'gn')
# Environment variables for default settings.
DART_USE_ASAN = "DART_USE_ASAN" # Use instead of --asan
DART_USE_MSAN = "DART_USE_MSAN" # Use instead of --msan
DART_USE_TSAN = "DART_USE_TSAN" # Use instead of --tsan
DART_USE_WHEEZY = "DART_USE_WHEEZY" # Use instread of --wheezy
DART_USE_TOOLCHAIN = "DART_USE_TOOLCHAIN" # Use instread of --toolchain-prefix
DART_USE_SYSROOT = "DART_USE_SYSROOT" # Use instead of --target-sysroot
# use instead of --platform-sdk
DART_MAKE_PLATFORM_SDK = "DART_MAKE_PLATFORM_SDK"
def UseASAN():
return DART_USE_ASAN in os.environ
def UseMSAN():
return DART_USE_MSAN in os.environ
def UseTSAN():
return DART_USE_TSAN in os.environ
def UseWheezy():
return DART_USE_WHEEZY in os.environ
def ToolchainPrefix(args):
if args.toolchain_prefix:
return args.toolchain_prefix
return os.environ.get(DART_USE_TOOLCHAIN)
def TargetSysroot(args):
if args.target_sysroot:
return args.target_sysroot
return os.environ.get(DART_USE_SYSROOT)
def MakePlatformSDK():
return DART_MAKE_PLATFORM_SDK in os.environ
def GetOutDir(mode, arch, target_os):
return utils.GetBuildRoot(HOST_OS, mode, arch, target_os)
def ToCommandLine(gn_args):
def merge(key, value):
if type(value) is bool:
return '%s=%s' % (key, 'true' if value else 'false')
elif type(value) is int:
return '%s=%d' % (key, value)
return '%s="%s"' % (key, value)
return [merge(x, y) for x, y in gn_args.iteritems()]
def HostCpuForArch(arch):
if arch in ['ia32', 'arm', 'armv6', 'armv5te',
'simarm', 'simarmv6', 'simarmv5te', 'simdbc',
'armsimdbc']:
return 'x86'
if arch in ['x64', 'arm64', 'simarm64', 'simdbc64', 'armsimdbc64']:
return 'x64'
# The C compiler's target.
def TargetCpuForArch(arch, target_os):
if arch in ['ia32', 'simarm', 'simarmv6', 'simarmv5te']:
return 'x86'
if arch in ['x64', 'simarm64']:
return 'x64'
if arch == 'simdbc':
return 'arm' if target_os == 'android' else 'x86'
if arch == 'simdbc64':
return 'arm64' if target_os == 'android' else 'x64'
if arch == 'armsimdbc':
return 'arm'
if arch == 'armsimdbc64':
return 'arm64'
return arch
# The Dart compiler's target.
def DartTargetCpuForArch(arch):
if arch in ['ia32']:
return 'ia32'
if arch in ['x64']:
return 'x64'
if arch in ['arm', 'simarm']:
return 'arm'
if arch in ['armv6', 'simarmv6']:
return 'armv6'
if arch in ['armv5te', 'simarmv5te']:
return 'armv5te'
if arch in ['arm64', 'simarm64']:
return 'arm64'
if arch in ['simdbc', 'simdbc64', 'armsimdbc', 'armsimdbc64']:
return 'dbc'
return arch
def HostOsForGn(host_os):
if host_os.startswith('macos'):
return 'mac'
if host_os.startswith('win'):
return 'win'
return host_os
# Where string_map is formatted as X1=Y1,X2=Y2 etc.
# If key is X1, returns Y1.
def ParseStringMap(key, string_map):
for m in string_map.split(','):
l = m.split('=')
if l[0] == key:
return l[1]
return None
def UseSanitizer(args):
return args.asan or args.msan or args.tsan
def DontUseClang(args, target_os, host_cpu, target_cpu):
# We don't have clang on Windows.
return (target_os == 'win'
# TODO(zra): Experiment with using clang for the arm cross-builds.
or (target_os == 'linux' and target_cpu.startswith('arm'))
# TODO(zra): Only use clang when a sanitizer build is specified until
# clang bugs in tcmalloc inline assembly for ia32 are fixed.
or (target_os == 'linux'
and host_cpu == 'x86'
and not UseSanitizer(args)))
def ToGnArgs(args, mode, arch, target_os):
gn_args = {}
host_os = HostOsForGn(HOST_OS)
if target_os == 'host':
gn_args['target_os'] = host_os
else:
gn_args['target_os'] = target_os
gn_args['host_cpu'] = HostCpuForArch(arch)
gn_args['target_cpu'] = TargetCpuForArch(arch, target_os)
gn_args['dart_target_arch'] = DartTargetCpuForArch(arch)
crossbuild = gn_args['target_cpu'] != gn_args['host_cpu']
if arch != HostCpuForArch(arch):
# Training an app-jit snapshot under a simulator is slow. Use script
# snapshots instead.
gn_args['dart_snapshot_kind'] = 'script'
else:
gn_args['dart_snapshot_kind'] = 'app-jit'
# We only want the fallback root certs in the standalone VM on
# Linux and Windows.
if gn_args['target_os'] in ['linux', 'win']:
gn_args['dart_use_fallback_root_certificates'] = True
gn_args['dart_zlib_path'] = "//runtime/bin/zlib"
# Use tcmalloc only when targeting Linux and when not using ASAN.
gn_args['dart_use_tcmalloc'] = ((gn_args['target_os'] == 'linux')
and not UseSanitizer(args))
if gn_args['target_os'] == 'linux':
if gn_args['target_cpu'] == 'arm':
# Default to -mfloat-abi=hard and -mfpu=neon for arm on Linux as we're
# specifying a gnueabihf compiler in //build/toolchain/linux/BUILD.gn.
floatabi = 'hard' if args.arm_float_abi == '' else args.arm_float_abi
gn_args['arm_version'] = 7
gn_args['arm_float_abi'] = floatabi
gn_args['arm_use_neon'] = True
elif gn_args['target_cpu'] == 'armv6':
floatabi = 'softfp' if args.arm_float_abi == '' else args.arm_float_abi
gn_args['target_cpu'] = 'arm'
gn_args['arm_version'] = 6
gn_args['arm_float_abi'] = floatabi
elif gn_args['target_cpu'] == 'armv5te':
raise Exception("GN support for armv5te unimplemented")
gn_args['is_debug'] = mode == 'debug'
gn_args['is_release'] = mode == 'release'
gn_args['is_product'] = mode == 'product'
gn_args['dart_debug'] = mode == 'debug'
# This setting is only meaningful for Flutter. Standalone builds of the VM
# should leave this set to 'develop', which causes the build to defer to
# 'is_debug', 'is_release' and 'is_product'.
if mode == 'product':
gn_args['dart_runtime_mode'] = 'release'
else:
gn_args['dart_runtime_mode'] = 'develop'
dont_use_clang = DontUseClang(args, gn_args['target_os'],
gn_args['host_cpu'],
gn_args['target_cpu'])
gn_args['is_clang'] = args.clang and not dont_use_clang
gn_args['is_asan'] = args.asan and gn_args['is_clang']
gn_args['is_msan'] = args.msan and gn_args['is_clang']
gn_args['is_tsan'] = args.tsan and gn_args['is_clang']
if not args.platform_sdk and not gn_args['target_cpu'].startswith('arm'):
gn_args['dart_platform_sdk'] = args.platform_sdk
gn_args['dart_stripped_binary'] = 'exe.stripped/dart'
# Setup the user-defined sysroot.
if gn_args['target_os'] == 'linux' and args.wheezy and not crossbuild:
gn_args['dart_use_wheezy_sysroot'] = True
else:
sysroot = TargetSysroot(args)
if sysroot:
gn_args['target_sysroot'] = ParseStringMap(arch, sysroot)
toolchain = ToolchainPrefix(args)
if toolchain:
gn_args['toolchain_prefix'] = ParseStringMap(arch, toolchain)
goma_dir = os.environ.get('GOMA_DIR')
goma_home_dir = os.path.join(os.getenv('HOME', ''), 'goma')
if args.goma and goma_dir:
gn_args['use_goma'] = True
gn_args['goma_dir'] = goma_dir
elif args.goma and os.path.exists(goma_home_dir):
gn_args['use_goma'] = True
gn_args['goma_dir'] = goma_home_dir
else:
gn_args['use_goma'] = False
gn_args['goma_dir'] = None
if args.debug_opt_level:
gn_args['dart_debug_optimization_level'] = args.debug_opt_level
gn_args['debug_optimization_level'] = args.debug_opt_level
return gn_args
def ProcessOsOption(os_name):
if os_name == 'host':
return HOST_OS
return os_name
def ProcessOptions(args):
if args.arch == 'all':
args.arch = 'ia32,x64,simarm,simarm64,simdbc64'
if args.mode == 'all':
args.mode = 'debug,release,product'
if args.os == 'all':
args.os = 'host,android'
args.mode = args.mode.split(',')
args.arch = args.arch.split(',')
args.os = args.os.split(',')
for mode in args.mode:
if not mode in ['debug', 'release', 'product']:
print "Unknown mode %s" % mode
return False
for arch in args.arch:
archs = ['ia32', 'x64', 'simarm', 'arm', 'simarmv6', 'armv6',
'simarmv5te', 'armv5te', 'simarm64', 'arm64',
'simdbc', 'simdbc64', 'armsimdbc', 'armsimdbc64']
if not arch in archs:
print "Unknown arch %s" % arch
return False
oses = [ProcessOsOption(os_name) for os_name in args.os]
for os_name in oses:
if not os_name in ['android', 'freebsd', 'linux', 'macos', 'win32']:
print "Unknown os %s" % os_name
return False
if os_name != HOST_OS:
if os_name != 'android':
print "Unsupported target os %s" % os_name
return False
if not HOST_OS in ['linux', 'macos']:
print ("Cross-compilation to %s is not supported on host os %s."
% (os_name, HOST_OS))
return False
if not arch in ['ia32', 'x64', 'arm', 'armv6', 'armv5te', 'arm64',
'simdbc', 'simdbc64']:
print ("Cross-compilation to %s is not supported for architecture %s."
% (os_name, arch))
return False
return True
def os_has_ide(host_os):
return host_os.startswith('win') or host_os.startswith('mac')
def ide_switch(host_os):
if host_os.startswith('win'):
return '--ide=vs'
elif host_os.startswith('mac'):
return '--ide=xcode'
else:
return '--ide=json'
def parse_args(args):
args = args[1:]
parser = argparse.ArgumentParser(
description='A script to run `gn gen`.',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
common_group = parser.add_argument_group('Common Arguments')
other_group = parser.add_argument_group('Other Arguments')
common_group.add_argument('--arch', '-a',
type=str,
help='Target architectures (comma-separated).',
metavar='[all,ia32,x64,simarm,arm,simarmv6,armv6,simarmv5te,armv5te,'
'simarm64,arm64,simdbc,armsimdbc]',
default='x64')
common_group.add_argument('--mode', '-m',
type=str,
help='Build variants (comma-separated).',
metavar='[all,debug,release,product]',
default='debug')
common_group.add_argument('--os',
type=str,
help='Target OSs (comma-separated).',
metavar='[all,host,android]',
default='host')
common_group.add_argument("-v", "--verbose",
help='Verbose output.',
default=False,
action="store_true")
other_group.add_argument('--arm-float-abi',
type=str,
help='The ARM float ABI (soft, softfp, hard)',
metavar='[soft,softfp,hard]',
default='')
other_group.add_argument('--asan',
help='Build with ASAN',
default=UseASAN(),
action='store_true')
other_group.add_argument('--no-asan',
help='Disable ASAN',
dest='asan',
action='store_false')
other_group.add_argument('--clang',
help='Use Clang',
default=True,
action='store_true')
other_group.add_argument('--no-clang',
help='Disable Clang',
dest='clang',
action='store_false')
other_group.add_argument('--debug-opt-level',
'-d',
help='The optimization level to use for debug builds',
type=str)
other_group.add_argument('--goma',
help='Use goma',
default=True,
action='store_true')
other_group.add_argument('--no-goma',
help='Disable goma',
dest='goma',
action='store_false')
other_group.add_argument('--ide',
help='Generate an IDE file.',
default=os_has_ide(HOST_OS),
action='store_true')
other_group.add_argument('--msan',
help='Build with MSAN',
default=UseMSAN(),
action='store_true')
other_group.add_argument('--no-msan',
help='Disable MSAN',
dest='msan',
action='store_false')
other_group.add_argument('--gn-args',
help='Set extra GN args',
dest='gn_args',
action='append')
other_group.add_argument('--platform-sdk',
help='Directs the create_sdk target to create a smaller "Platform" SDK',
default=MakePlatformSDK(),
action='store_true')
other_group.add_argument('--target-sysroot', '-s',
type=str,
help='Comma-separated list of arch=/path/to/sysroot mappings')
other_group.add_argument('--toolchain-prefix', '-t',
type=str,
help='Comma-separated list of arch=/path/to/toolchain-prefix mappings')
other_group.add_argument('--tsan',
help='Build with TSAN',
default=UseTSAN(),
action='store_true')
other_group.add_argument('--no-tsan',
help='Disable TSAN',
dest='tsan',
action='store_false')
other_group.add_argument('--wheezy',
help='Use the Debian wheezy sysroot on Linux',
default=UseWheezy(),
action='store_true')
other_group.add_argument('--no-wheezy',
help='Disable the Debian wheezy sysroot on Linux',
dest='wheezy',
action='store_false')
other_group.add_argument('--workers', '-w',
type=int,
help='Number of simultaneous GN invocations',
dest='workers',
default=multiprocessing.cpu_count())
options = parser.parse_args(args)
if not ProcessOptions(options):
parser.print_help()
return None
return options
# Run the command, if it succeeds returns 0, if it fails, returns the commands
# output as a string.
def RunCommand(command):
try:
subprocess.check_output(
command, cwd=DART_ROOT, stderr=subprocess.STDOUT)
return 0
except subprocess.CalledProcessError as e:
return ("Command failed: " + ' '.join(command) + "\n" +
"output: " + e.output)
def Main(argv):
starttime = time.time()
args = parse_args(argv)
if sys.platform.startswith(('cygwin', 'win')):
subdir = 'win'
elif sys.platform == 'darwin':
subdir = 'mac'
elif sys.platform.startswith('linux'):
subdir = 'linux64'
else:
print 'Unknown platform: ' + sys.platform
return 1
gn = os.path.join(DART_ROOT, 'buildtools', subdir, 'gn')
commands = []
for target_os in args.os:
for mode in args.mode:
for arch in args.arch:
out_dir = GetOutDir(mode, arch, target_os)
command = [gn, 'gen', out_dir, '--check']
gn_args = ToCommandLine(ToGnArgs(args, mode, arch, target_os))
if args.gn_args != None:
gn_args += args.gn_args
if args.verbose:
print "gn gen --check in %s" % out_dir
if args.ide:
command.append(ide_switch(HOST_OS))
command.append('--args=%s' % ' '.join(gn_args))
commands.append(command)
pool = multiprocessing.Pool(args.workers)
results = pool.map(RunCommand, commands, chunksize=1)
for r in results:
if r != 0:
print r.strip()
return 1
endtime = time.time()
if args.verbose:
print ("GN Time: %.3f seconds" % (endtime - starttime))
return 0
if __name__ == '__main__':
sys.exit(Main(sys.argv))