from __future__ import print_function

import json

import sys

import errno

import optparse

import os

import pipes

import pprint

import re

import shlex

import subprocess

import shutil

import string

from distutils.spawn import find_executable as which

# If not run from node/, cd to node/.

os.chdir(os.path.dirname(__file__) or '.')

original_argv = sys.argv[1:]

# gcc and g++ as defaults matches what GYP's Makefile generator does,

# except on OS X.

CC = os.environ.get('CC', 'cc' if sys.platform == 'darwin' else 'gcc')

CXX = os.environ.get('CXX', 'c++' if sys.platform == 'darwin' else 'g++')

sys.path.insert(0, os.path.join('tools', 'gyp', 'pylib'))

from gyp.common import GetFlavor

# imports in tools/configure.d

sys.path.insert(0, os.path.join('tools', 'configure.d'))

import nodedownload

# imports in tools/

sys.path.insert(0, 'tools')

import getmoduleversion

from gyp_node import run_gyp

# imports in deps/v8/tools/node

sys.path.insert(0, os.path.join('deps', 'v8', 'tools', 'node'))

from fetch_deps import FetchDeps

# parse our options

parser = optparse.OptionParser()

valid_os = ('win', 'mac', 'solaris', 'freebsd', 'openbsd', 'linux',

'android', 'aix', 'cloudabi')

valid_arch = ('arm', 'arm64', 'ia32', 'mips', 'mipsel', 'mips64el', 'ppc',

'ppc64', 'x32','x64', 'x86', 'x86_64', 's390', 's390x')

valid_arm_float_abi = ('soft', 'softfp', 'hard')

valid_arm_fpu = ('vfp', 'vfpv3', 'vfpv3-d16', 'neon')

valid_mips_arch = ('loongson', 'r1', 'r2', 'r6', 'rx')

valid_mips_fpu = ('fp32', 'fp64', 'fpxx')

valid_mips_float_abi = ('soft', 'hard')

valid_intl_modes = ('none', 'small-icu', 'full-icu', 'system-icu')

with open ('tools/icu/icu_versions.json') as f:

icu_versions = json.load(f)

# create option groups

shared_optgroup = optparse.OptionGroup(parser, "Shared libraries",

"Flags that allows you to control whether you want to build against "

"built-in dependencies or its shared representations. If necessary, "

"provide multiple libraries with comma.")

intl_optgroup = optparse.OptionGroup(parser, "Internationalization",

"Flags that lets you enable i18n features in Node.js as well as which "

"library you want to build against.")

http2_optgroup = optparse.OptionGroup(parser, "HTTP2",

"Flags that allows you to control HTTP2 features in Node.js")

# Options should be in alphabetical order but keep --prefix at the top,

# that's arguably the one people will be looking for most.

parser.add_option('--prefix',

action='store',

dest='prefix',

default='/usr/local',

help='select the install prefix [default: %default]')

parser.add_option('--coverage',

action='store_true',

dest='coverage',

help='Build node with code coverage enabled')

parser.add_option('--debug',

action='store_true',

dest='debug',

help='also build debug build')

parser.add_option('--dest-cpu',

action='store',

dest='dest_cpu',

choices=valid_arch,

help='CPU architecture to build for ({0})'.format(', '.join(valid_arch)))

parser.add_option('--cross-compiling',

action='store_true',

dest='cross_compiling',

default=None,

help='force build to be considered as cross compiled')

parser.add_option('--no-cross-compiling',

action='store_false',

dest='cross_compiling',

default=None,

help='force build to be considered as NOT cross compiled')

parser.add_option('--dest-os',

action='store',

dest='dest_os',

choices=valid_os,

help='operating system to build for ({0})'.format(', '.join(valid_os)))

parser.add_option('--gdb',

action='store_true',

dest='gdb',

help='add gdb support')

parser.add_option('--no-ifaddrs',

action='store_true',

dest='no_ifaddrs',

help='use on deprecated SunOS systems that do not support ifaddrs.h')

parser.add_option("--fully-static",

action="store_true",

dest="fully_static",

help="Generate an executable without external dynamic libraries. This "

"will not work on OSX when using the default compilation environment")

parser.add_option("--partly-static",

action="store_true",

dest="partly_static",

help="Generate an executable with libgcc and libstdc++ libraries. This "

"will not work on OSX when using the default compilation environment")

parser.add_option("--enable-vtune-profiling",

action="store_true",

dest="enable_vtune_profiling",

help="Enable profiling support for Intel VTune profiler to profile "

"JavaScript code executed in nodejs. This feature is only available "

"for x32, x86, and x64 architectures.")

parser.add_option("--enable-pgo-generate",

action="store_true",

dest="enable_pgo_generate",

help="Enable profiling with pgo of a binary. This feature is only available "

"on linux with gcc and g++ 5.4.1 or newer.")

parser.add_option("--enable-pgo-use",

action="store_true",

dest="enable_pgo_use",

help="Enable use of the profile generated with --enable-pgo-generate. This "

"feature is only available on linux with gcc and g++ 5.4.1 or newer.")

parser.add_option("--enable-lto",

action="store_true",

dest="enable_lto",

help="Enable compiling with lto of a binary. This feature is only available "

"on linux with gcc and g++ 5.4.1 or newer.")

parser.add_option("--link-module",

action="append",

dest="linked_module",

help="Path to a JS file to be bundled in the binary as a builtin. "

"This module will be referenced by path without extension; "

"e.g. /root/x/y.js will be referenced via require('root/x/y'). "

"Can be used multiple times")

parser.add_option("--openssl-no-asm",

action="store_true",

dest="openssl_no_asm",

help="Do not build optimized assembly for OpenSSL")

parser.add_option('--openssl-fips',

action='store',

dest='openssl_fips',

help='Build OpenSSL using FIPS canister .o file in supplied folder')

parser.add_option('--openssl-is-fips',

action='store_true',

dest='openssl_is_fips',

help='specifies that the OpenSSL library is FIPS compatible')

parser.add_option('--openssl-use-def-ca-store',

action='store_true',

dest='use_openssl_ca_store',

help='Use OpenSSL supplied CA store instead of compiled-in Mozilla CA copy.')

parser.add_option('--openssl-system-ca-path',

action='store',

dest='openssl_system_ca_path',

help='Use the specified path to system CA (PEM format) in addition to '

'the OpenSSL supplied CA store or compiled-in Mozilla CA copy.')

parser.add_option('--experimental-http-parser',

action='store_true',

dest='experimental_http_parser',

help='(no-op)')

shared_optgroup.add_option('--shared-http-parser',

action='store_true',

dest='shared_http_parser',

help='link to a shared http_parser DLL instead of static linking')

shared_optgroup.add_option('--shared-http-parser-includes',

action='store',

dest='shared_http_parser_includes',

help='directory containing http_parser header files')

shared_optgroup.add_option('--shared-http-parser-libname',

action='store',

dest='shared_http_parser_libname',

default='http_parser',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-http-parser-libpath',

action='store',

dest='shared_http_parser_libpath',

help='a directory to search for the shared http_parser DLL')

shared_optgroup.add_option('--shared-libuv',

action='store_true',

dest='shared_libuv',

help='link to a shared libuv DLL instead of static linking')

shared_optgroup.add_option('--shared-libuv-includes',

action='store',

dest='shared_libuv_includes',

help='directory containing libuv header files')

shared_optgroup.add_option('--shared-libuv-libname',

action='store',

dest='shared_libuv_libname',

default='uv',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-libuv-libpath',

action='store',

dest='shared_libuv_libpath',

help='a directory to search for the shared libuv DLL')

shared_optgroup.add_option('--shared-nghttp2',

action='store_true',

dest='shared_nghttp2',

help='link to a shared nghttp2 DLL instead of static linking')

shared_optgroup.add_option('--shared-nghttp2-includes',

action='store',

dest='shared_nghttp2_includes',

help='directory containing nghttp2 header files')

shared_optgroup.add_option('--shared-nghttp2-libname',

action='store',

dest='shared_nghttp2_libname',

default='nghttp2',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-nghttp2-libpath',

action='store',

dest='shared_nghttp2_libpath',

help='a directory to search for the shared nghttp2 DLLs')

shared_optgroup.add_option('--shared-openssl',

action='store_true',

dest='shared_openssl',

help='link to a shared OpenSSl DLL instead of static linking')

shared_optgroup.add_option('--shared-openssl-includes',

action='store',

dest='shared_openssl_includes',

help='directory containing OpenSSL header files')

shared_optgroup.add_option('--shared-openssl-libname',

action='store',

dest='shared_openssl_libname',

default='crypto,ssl',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-openssl-libpath',

action='store',

dest='shared_openssl_libpath',

help='a directory to search for the shared OpenSSL DLLs')

shared_optgroup.add_option('--shared-zlib',

action='store_true',

dest='shared_zlib',

help='link to a shared zlib DLL instead of static linking')

shared_optgroup.add_option('--shared-zlib-includes',

action='store',

dest='shared_zlib_includes',

help='directory containing zlib header files')

shared_optgroup.add_option('--shared-zlib-libname',

action='store',

dest='shared_zlib_libname',

default='z',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-zlib-libpath',

action='store',

dest='shared_zlib_libpath',

help='a directory to search for the shared zlib DLL')

shared_optgroup.add_option('--shared-cares',

action='store_true',

dest='shared_libcares',

help='link to a shared cares DLL instead of static linking')

shared_optgroup.add_option('--shared-cares-includes',

action='store',

dest='shared_libcares_includes',

help='directory containing cares header files')

shared_optgroup.add_option('--shared-cares-libname',

action='store',

dest='shared_libcares_libname',

default='cares',

help='alternative lib name to link to [default: %default]')

shared_optgroup.add_option('--shared-cares-libpath',

action='store',

dest='shared_libcares_libpath',

help='a directory to search for the shared cares DLL')

parser.add_option_group(shared_optgroup)

parser.add_option('--systemtap-includes',

action='store',

dest='systemtap_includes',

help='directory containing systemtap header files')

parser.add_option('--tag',

action='store',

dest='tag',

help='custom build tag')

parser.add_option('--release-urlbase',

action='store',

dest='release_urlbase',

help='Provide a custom URL prefix for the `process.release` properties '

'`sourceUrl` and `headersUrl`. When compiling a release build, this '

'will default to https://nodejs.org/download/release/')

parser.add_option('--enable-d8',

action='store_true',

dest='enable_d8',

help=optparse.SUPPRESS_HELP) # Unsupported, undocumented.

parser.add_option('--enable-trace-maps',

action='store_true',

dest='trace_maps',

help='Enable the --trace-maps flag in V8 (use at your own risk)')

parser.add_option('--v8-options',

action='store',

dest='v8_options',

help='v8 options to pass, see `node --v8-options` for examples.')

parser.add_option('--with-arm-float-abi',

action='store',

dest='arm_float_abi',

choices=valid_arm_float_abi,

help='specifies which floating-point ABI to use ({0}).'.format(

', '.join(valid_arm_float_abi)))

parser.add_option('--with-arm-fpu',

action='store',

dest='arm_fpu',

choices=valid_arm_fpu,

help='ARM FPU mode ({0}) [default: %default]'.format(

', '.join(valid_arm_fpu)))

parser.add_option('--with-mips-arch-variant',

action='store',

dest='mips_arch_variant',

default='r2',

choices=valid_mips_arch,

help='MIPS arch variant ({0}) [default: %default]'.format(

', '.join(valid_mips_arch)))

parser.add_option('--with-mips-fpu-mode',

action='store',

dest='mips_fpu_mode',

default='fp32',

choices=valid_mips_fpu,

help='MIPS FPU mode ({0}) [default: %default]'.format(

', '.join(valid_mips_fpu)))

parser.add_option('--with-mips-float-abi',

action='store',

dest='mips_float_abi',

default='hard',

choices=valid_mips_float_abi,

help='MIPS floating-point ABI ({0}) [default: %default]'.format(

', '.join(valid_mips_float_abi)))

parser.add_option('--with-dtrace',

action='store_true',

dest='with_dtrace',

help='build with DTrace (default is true on sunos and darwin)')

parser.add_option('--with-etw',

action='store_true',

dest='with_etw',

help='build with ETW (default is true on Windows)')

parser.add_option('--use-largepages',

action='store_true',

dest='node_use_large_pages',

help='build with Large Pages support. This feature is supported only on Linux kernel' +

'>= 2.6.38 with Transparent Huge pages enabled')

intl_optgroup.add_option('--with-intl',

action='store',

dest='with_intl',

default='small-icu',

choices=valid_intl_modes,

help='Intl mode (valid choices: {0}) [default: %default]'.format(

', '.join(valid_intl_modes)))

intl_optgroup.add_option('--without-intl',

action='store_const',

dest='with_intl',

const='none',

help='Disable Intl, same as --with-intl=none (disables inspector)')

intl_optgroup.add_option('--with-icu-path',

action='store',

dest='with_icu_path',

help='Path to icu.gyp (ICU i18n, Chromium version only.)')

icu_default_locales='root,en'

intl_optgroup.add_option('--with-icu-locales',

action='store',

dest='with_icu_locales',

default=icu_default_locales,

help='Comma-separated list of locales for "small-icu". "root" is assumed. '

'[default: %default]')

intl_optgroup.add_option('--with-icu-source',

action='store',

dest='with_icu_source',

help='Intl mode: optional local path to icu/ dir, or path/URL of '

'the icu4c source archive. '

'v%d.x or later recommended.' % icu_versions['minimum_icu'])

parser.add_option('--with-ltcg',

action='store_true',

dest='with_ltcg',

help='Use Link Time Code Generation. This feature is only available on Windows.')

parser.add_option('--with-pch',

action='store_true',

dest='with_pch',

help='Use Precompiled Headers (only available on Windows).')

intl_optgroup.add_option('--download',

action='store',

dest='download_list',

help=nodedownload.help())

intl_optgroup.add_option('--download-path',

action='store',

dest='download_path',

default='deps',

help='Download directory [default: %default]')

parser.add_option_group(intl_optgroup)

parser.add_option('--debug-lib',

action='store_true',

dest='node_debug_lib',

help='build lib with DCHECK macros')

http2_optgroup.add_option('--debug-nghttp2',

action='store_true',

dest='debug_nghttp2',

help='build nghttp2 with DEBUGBUILD (default is false)')

parser.add_option_group(http2_optgroup)

parser.add_option('--without-dtrace',

action='store_true',

dest='without_dtrace',

help='build without DTrace')

parser.add_option('--without-etw',

action='store_true',

dest='without_etw',

help='build without ETW')

parser.add_option('--without-npm',

action='store_true',

dest='without_npm',

help='do not install the bundled npm (package manager)')

parser.add_option('--without-report',

action='store_true',

dest='without_report',

help='build without report')

# Dummy option for backwards compatibility

parser.add_option('--with-snapshot',

action='store_true',

dest='unused_with_snapshot',

help=optparse.SUPPRESS_HELP)

parser.add_option('--without-snapshot',

action='store_true',

dest='without_snapshot',

help=optparse.SUPPRESS_HELP)

parser.add_option('--code-cache-path',

action='store',

dest='code_cache_path',

help='Use a file generated by tools/generate_code_cache.js to compile the'

' code cache for builtin modules into the binary')

parser.add_option('--without-ssl',

action='store_true',

dest='without_ssl',

help='build without SSL (disables crypto, https, inspector, etc.)')

parser.add_option('--without-node-options',

action='store_true',

dest='without_node_options',

help='build without NODE_OPTIONS support')

parser.add_option('--ninja',

action='store_true',

dest='use_ninja',

help='generate build files for use with Ninja')

parser.add_option('--enable-asan',

action='store_true',

dest='enable_asan',

help='build with asan')

parser.add_option('--enable-static',

action='store_true',

dest='enable_static',

help='build as static library')

parser.add_option('--no-browser-globals',

action='store_true',

dest='no_browser_globals',

help='do not export browser globals like setTimeout, console, etc. ' +

'(This mode is not officially supported for regular applications)')

parser.add_option('--without-inspector',

action='store_true',

dest='without_inspector',

help='disable the V8 inspector protocol')

parser.add_option('--shared',

action='store_true',

dest='shared',

help='compile shared library for embedding node in another project. ' +

'(This mode is not officially supported for regular applications)')

parser.add_option('--without-v8-platform',

action='store_true',

dest='without_v8_platform',

default=False,

help='do not initialize v8 platform during node.js startup. ' +

'(This mode is not officially supported for regular applications)')

parser.add_option('--without-bundled-v8',

action='store_true',

dest='without_bundled_v8',

default=False,

help='do not use V8 includes from the bundled deps folder. ' +

'(This mode is not officially supported for regular applications)')

parser.add_option('--build-v8-with-gn',

action='store_true',

dest='build_v8_with_gn',

default=False,

help='build V8 using GN instead of gyp')

parser.add_option('--verbose',

action='store_true',

dest='verbose',

default=False,

help='get more output from this script')

parser.add_option('--v8-non-optimized-debug',

action='store_true',

dest='v8_non_optimized_debug',

default=False,

help='compile V8 with minimal optimizations and with runtime checks')

# Create compile_commands.json in out/Debug and out/Release.

parser.add_option('-C',

action='store_true',

dest='compile_commands_json',

help=optparse.SUPPRESS_HELP)

(options, args) = parser.parse_args()

# Expand ~ in the install prefix now, it gets written to multiple files.

options.prefix = os.path.expanduser(options.prefix or '')

# set up auto-download list

auto_downloads = nodedownload.parse(options.download_list)

def error(msg):

prefix = '\033[1m\033[31mERROR\033[0m' if os.isatty(1) else 'ERROR'

print('%s: %s' % (prefix, msg))

sys.exit(1)

def warn(msg):

warn.warned = True

prefix = '\033[1m\033[93mWARNING\033[0m' if os.isatty(1) else 'WARNING'

print('%s: %s' % (prefix, msg))

# track if warnings occurred

warn.warned = False

def print_verbose(x):

if not options.verbose:

return

if type(x) is str:

print(x)

else:

pprint.pprint(x, indent=2)

def b(value):

"""Returns the string 'true' if value is truthy, 'false' otherwise."""

if value:

return 'true'

else:

return 'false'

def pkg_config(pkg):

"""Run pkg-config on the specified package

Returns ("-l flags", "-I flags", "-L flags", "version")

otherwise (None, None, None, None)"""

pkg_config = os.environ.get('PKG_CONFIG', 'pkg-config')

retval = ()

for flag in ['--libs-only-l', '--cflags-only-I',

'--libs-only-L', '--modversion']:

try:

proc = subprocess.Popen(

shlex.split(pkg_config) + ['--silence-errors', flag, pkg],

stdout=subprocess.PIPE)

val = proc.communicate()[0].strip()

except OSError as e:

if e.errno != errno.ENOENT: raise e # Unexpected error.

return (None, None, None, None) # No pkg-config/pkgconf installed.

retval += (val,)

return retval

def try_check_compiler(cc, lang):

try:

proc = subprocess.Popen(shlex.split(cc) + ['-E', '-P', '-x', lang, '-'],

stdin=subprocess.PIPE, stdout=subprocess.PIPE)

except OSError:

return (False, False, '', '')

proc.stdin.write('__clang__ __GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__ '

'__clang_major__ __clang_minor__ __clang_patchlevel__')

values = (proc.communicate()[0].split() + ['0'] * 7)[0:7]

is_clang = values[0] == '1'

gcc_version = tuple(map(int, values[1:1+3]))

clang_version = tuple(map(int, values[4:4+3])) if is_clang else None

return (True, is_clang, clang_version, gcc_version)

#

# The version of asm compiler is needed for building openssl asm files.

# See deps/openssl/openssl.gypi for detail.

# Commands and regular expressions to obtain its version number are taken from

# https://github.com/openssl/openssl/blob/OpenSSL_1_0_2-stable/crypto/sha/asm/sha512-x86_64.pl#L112-L129

#

def get_version_helper(cc, regexp):

try:

proc = subprocess.Popen(shlex.split(cc) + ['-v'], stdin=subprocess.PIPE,

stderr=subprocess.PIPE, stdout=subprocess.PIPE)

except OSError:

error('''No acceptable C compiler found!

Please make sure you have a C compiler installed on your system and/or

consider adjusting the CC environment variable if you installed

it in a non-standard prefix.''')

match = re.search(regexp, proc.communicate()[1])

if match:

return match.group(2)

else:

return '0'

def get_nasm_version(asm):

try:

proc = subprocess.Popen(shlex.split(asm) + ['-v'],

stdin=subprocess.PIPE, stderr=subprocess.PIPE,

stdout=subprocess.PIPE)

except OSError:

warn('''No acceptable ASM compiler found!

Please make sure you have installed NASM from http://www.nasm.us

and refer BUILDING.md.''')

return '0'

match = re.match(r"NASM version ([2-9]\.[0-9][0-9]+)",

proc.communicate()[0])

if match:

return match.group(1)

else:

return '0'

def get_llvm_version(cc):

return get_version_helper(

cc, r"(^(?:FreeBSD )?clang version|based on LLVM) ([3-9]\.[0-9]+)")

def get_xcode_version(cc):

return get_version_helper(

cc, r"(^Apple LLVM version) ([0-9]+\.[0-9]+)")

def get_gas_version(cc):

try:

custom_env = os.environ.copy()

custom_env["LC_ALL"] = "C"

proc = subprocess.Popen(shlex.split(cc) + ['-Wa,-v', '-c', '-o',

'/dev/null', '-x',

'assembler', '/dev/null'],

stdin=subprocess.PIPE, stderr=subprocess.PIPE,

stdout=subprocess.PIPE, env=custom_env)

except OSError:

error('''No acceptable C compiler found!

Please make sure you have a C compiler installed on your system and/or

consider adjusting the CC environment variable if you installed

it in a non-standard prefix.''')

gas_ret = proc.communicate()[1]

match = re.match(r"GNU assembler version ([2-9]\.[0-9]+)", gas_ret)

if match:

return match.group(1)

else:

warn('Could not recognize `gas`: ' + gas_ret)

return '0'

# Note: Apple clang self-reports as clang 4.2.0 and gcc 4.2.1. It passes

# the version check more by accident than anything else but a more rigorous

# check involves checking the build number against a whitelist. I'm not

# quite prepared to go that far yet.

def check_compiler(o):

if sys.platform == 'win32':

if not options.openssl_no_asm:

nasm_version = get_nasm_version('nasm')

o['variables']['nasm_version'] = nasm_version

if nasm_version == 0:

o['variables']['openssl_no_asm'] = 1

return

ok, is_clang, clang_version, gcc_version = try_check_compiler(CXX, 'c++')

if not ok:

warn('failed to autodetect C++ compiler version (CXX=%s)' % CXX)

elif sys.platform.startswith('aix') and gcc_version < (6, 3, 0):

warn('C++ compiler too old, need g++ 6.3.0 (CXX=%s)' % CXX)

elif clang_version < (3, 4, 2) if is_clang else gcc_version < (4, 9, 4):

warn('C++ compiler too old, need g++ 4.9.4 or clang++ 3.4.2 (CXX=%s)' % CXX)

ok, is_clang, clang_version, gcc_version = try_check_compiler(CC, 'c')

if not ok:

warn('failed to autodetect C compiler version (CC=%s)' % CC)

elif not is_clang and gcc_version < (4, 2, 0):

# clang 3.2 is a little white lie because any clang version will probably

# do for the C bits. However, we might as well encourage people to upgrade

# to a version that is not completely ancient.

warn('C compiler too old, need gcc 4.2 or clang 3.2 (CC=%s)' % CC)

o['variables']['llvm_version'] = get_llvm_version(CC) if is_clang else 0

# Need xcode_version or gas_version when openssl asm files are compiled.

if options.without_ssl or options.openssl_no_asm or options.shared_openssl:

return

if is_clang:

if sys.platform == 'darwin':

o['variables']['xcode_version'] = get_xcode_version(CC)

else:

o['variables']['gas_version'] = get_gas_version(CC)

def cc_macros(cc=None):

"""Checks predefined macros using the C compiler command."""

try:

p = subprocess.Popen(shlex.split(cc or CC) + ['-dM', '-E', '-'],

stdin=subprocess.PIPE,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE)

except OSError:

error('''No acceptable C compiler found!

Please make sure you have a C compiler installed on your system and/or

consider adjusting the CC environment variable if you installed

it in a non-standard prefix.''')

p.stdin.write('\n')

out = p.communicate()[0]

out = str(out).split('\n')

k = {}

for line in out:

lst = shlex.split(line)

if len(lst) > 2:

key = lst[1]

val = lst[2]

k[key] = val

return k

def is_arch_armv7():

"""Check for ARMv7 instructions"""

cc_macros_cache = cc_macros()

return cc_macros_cache.get('__ARM_ARCH') == '7'

def is_arch_armv6():

"""Check for ARMv6 instructions"""

cc_macros_cache = cc_macros()

return cc_macros_cache.get('__ARM_ARCH') == '6'

def is_arm_hard_float_abi():

"""Check for hardfloat or softfloat eabi on ARM"""

# GCC versions 4.6 and above define __ARM_PCS or __ARM_PCS_VFP to specify

# the Floating Point ABI used (PCS stands for Procedure Call Standard).

# We use these as well as a couple of other defines to statically determine

# what FP ABI used.

return '__ARM_PCS_VFP' in cc_macros()

def host_arch_cc():

"""Host architecture check using the CC command."""

if sys.platform.startswith('aix'):

# we only support gcc at this point and the default on AIX

# would be xlc so hard code gcc

k = cc_macros('gcc')

else:

k = cc_macros(os.environ.get('CC_host'))

matchup = {

'__aarch64__' : 'arm64',

'__arm__' : 'arm',

'__i386__' : 'ia32',

'__MIPSEL__' : 'mipsel',

'__mips__' : 'mips',

'__PPC64__' : 'ppc64',

'__PPC__' : 'ppc64',

'__x86_64__' : 'x64',

'__s390__' : 's390',

'__s390x__' : 's390x',

}

rtn = 'ia32' # default

for i in matchup:

if i in k and k[i] != '0':

rtn = matchup[i]

if rtn != 's390':

break

if rtn == 'mipsel' and '_LP64' in k:

rtn = 'mips64el'

return rtn

def host_arch_win():

"""Host architecture check using environ vars (better way to do this?)"""

observed_arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')

arch = os.environ.get('PROCESSOR_ARCHITEW6432', observed_arch)

matchup = {

'AMD64' : 'x64',

'x86' : 'ia32',

'arm' : 'arm',

'mips' : 'mips',

}

return matchup.get(arch, 'ia32')

def configure_arm(o):

if options.arm_float_abi:

arm_float_abi = options.arm_float_abi

elif is_arm_hard_float_abi():

arm_float_abi = 'hard'

else:

arm_float_abi = 'default'

arm_fpu = 'vfp'

if is_arch_armv7():

arm_fpu = 'vfpv3'

o['variables']['arm_version'] = '7'

else:

o['variables']['arm_version'] = '6' if is_arch_armv6() else 'default'

o['variables']['arm_thumb'] = 0 # -marm

o['variables']['arm_float_abi'] = arm_float_abi

if options.dest_os == 'android':

arm_fpu = 'vfpv3'

o['variables']['arm_version'] = '7'

o['variables']['arm_fpu'] = options.arm_fpu or arm_fpu

def configure_mips(o):

can_use_fpu_instructions = (options.mips_float_abi != 'soft')

o['variables']['v8_can_use_fpu_instructions'] = b(can_use_fpu_instructions)

o['variables']['v8_use_mips_abi_hardfloat'] = b(can_use_fpu_instructions)

o['variables']['mips_arch_variant'] = options.mips_arch_variant

o['variables']['mips_fpu_mode'] = options.mips_fpu_mode

def gcc_version_ge(version_checked):

for compiler in [(CC, 'c'), (CXX, 'c++')]:

ok, is_clang, clang_version, compiler_version = \

try_check_compiler(compiler[0], compiler[1])

if is_clang or compiler_version < version_checked:

return False

return True

def configure_node(o):

if options.dest_os == 'android':

o['variables']['OS'] = 'android'

o['variables']['node_prefix'] = options.prefix

o['variables']['node_install_npm'] = b(not options.without_npm)

o['variables']['node_report'] = b(not options.without_report)

o['default_configuration'] = 'Debug' if options.debug else 'Release'

host_arch = host_arch_win() if os.name == 'nt' else host_arch_cc()

target_arch = options.dest_cpu or host_arch

# ia32 is preferred by the build tools (GYP) over x86 even if we prefer the latter

# the Makefile resets this to x86 afterward

if target_arch == 'x86':

target_arch = 'ia32'

# x86_64 is common across linuxes, allow it as an alias for x64

if target_arch == 'x86_64':

target_arch = 'x64'

o['variables']['host_arch'] = host_arch

o['variables']['target_arch'] = target_arch

o['variables']['node_byteorder'] = sys.byteorder

cross_compiling = (options.cross_compiling

if options.cross_compiling is not None

else target_arch != host_arch)

want_snapshots = not options.without_snapshot

o['variables']['want_separate_host_toolset'] = int(

cross_compiling and want_snapshots)

if target_arch == 'arm':

configure_arm(o)

elif target_arch in ('mips', 'mipsel', 'mips64el'):

configure_mips(o)

if flavor == 'aix':

o['variables']['node_target_type'] = 'static_library'

if target_arch in ('x86', 'x64', 'ia32', 'x32'):

o['variables']['node_enable_v8_vtunejit'] = b(options.enable_vtune_profiling)

elif options.enable_vtune_profiling:

raise Exception(

'The VTune profiler for JavaScript is only supported on x32, x86, and x64 '

'architectures.')

else:

o['variables']['node_enable_v8_vtunejit'] = 'false'

if flavor != 'linux' and (options.enable_pgo_generate or options.enable_pgo_use):

raise Exception(

'The pgo option is supported only on linux.')

if flavor == 'linux':

if options.enable_pgo_generate or options.enable_pgo_use:

version_checked = (5, 4, 1)

if not gcc_version_ge(version_checked):

version_checked_str = ".".join(map(str, version_checked))

raise Exception(

'The options --enable-pgo-generate and --enable-pgo-use '

'are supported for gcc and gxx %s or newer only.' % (version_checked_str))

if options.enable_pgo_generate and options.enable_pgo_use:

raise Exception(