Xash3D FWGS engine.
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# encoding: utf-8
# xcompile.py -- crosscompiling utils
# Copyright (C) 2018 a1batross
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
try: from fwgslib import get_flags_by_compiler
except: from waflib.extras.fwgslib import get_flags_by_compiler
from waflib import Logs
import os
import sys
# Output:
# CROSSCOMPILING -- set to true, if crosscompiling is enabled
# DEST_OS2 -- as some operating systems is built on top of another, it's better to not change DEST_OS,
# instead of this DEST_OS2 is defined with target value
# For example: android is built on top of linux and have many things in common,
# but it can't be considered as default GNU/Linux.
# Possible values:
# DEST_OS2 DEST_OS
# 'android' 'linux'
# This class does support ONLY r10e and r19c NDK
class Android:
ctx = None # waf context
arch = None
toolchain = None
api = None
toolchain_path = None
ndk_home = None
ndk_rev = 0
is_hardfloat = False
clang = False
def __init__(self, ctx, arch, toolchain, api):
self.ctx = ctx
self.api = api
for i in ['ANDROID_NDK_HOME', 'ANDROID_NDK']:
self.ndk_home = os.getenv(i)
if self.ndk_home != None:
break
if not self.ndk_home:
ctx.fatal('Set ANDROID_NDK_HOME environment variable pointing to the root of Android NDK!')
# TODO: this were added at some point of NDK development
# but I don't know at which version
# r10e don't have it
source_prop = os.path.join(self.ndk_home, 'source.properties')
if os.path.exists(source_prop):
with open(source_prop) as ndk_props_file:
for line in ndk_props_file.readlines():
tokens = line.split('=')
trimed_tokens = [token.strip() for token in tokens]
if 'Pkg.Revision' in trimed_tokens:
self.ndk_rev = int(trimed_tokens[1].split('.')[0])
else:
self.ndk_rev = 10
if self.ndk_rev not in [10, 19, 20]:
ctx.fatal('Unknown NDK revision: {}'.format(self.ndk_rev))
self.arch = arch
if self.arch == 'armeabi-v7a-hard':
if self.ndk_rev <= 10:
self.arch = 'armeabi-v7a' # Only armeabi-v7a have hard float ABI
self.is_hardfloat = True
else:
raise Exception('NDK does not support hardfloat ABI')
self.toolchain = toolchain
if self.ndk_rev >= 19 or 'clang' in self.toolchain:
self.clang = True
if self.is_arm64() or self.is_amd64() and self.api < 21:
Logs.warn('API level for 64-bit target automatically was set to 21')
self.api = 21
elif self.ndk_rev >= 19 and self.api < 16:
Logs.warn('API level automatically was set to 16 due to NDK support')
self.api = 16
self.toolchain_path = self.gen_toolchain_path()
# TODO: Crystax support?
# TODO: Support for everything else than linux-x86_64?
# TODO: Determine if I actually need to implement listed above
def is_host(self):
'''
Checks if we using host compiler(implies clang)
'''
return self.toolchain == 'host'
def is_arm(self):
'''
Checks if selected architecture is **32-bit** ARM
'''
return self.arch.startswith('armeabi')
def is_x86(self):
'''
Checks if selected architecture is **32-bit** or **64-bit** x86
'''
return self.arch == 'x86'
def is_amd64(self):
'''
Checks if selected architecture is **64-bit** x86
'''
return self.arch == 'x86_64'
def is_arm64(self):
'''
Checks if selected architecture is AArch64
'''
return self.arch == 'aarch64'
def is_clang(self):
'''
Checks if selected toolchain is Clang (TODO)
'''
return self.clang
def is_hardfp(self):
return self.is_hardfloat
def ndk_triplet(self):
if self.is_x86():
triplet = 'i686-linux-android'
elif self.is_arm():
triplet = 'arm-linux-androideabi'
else:
triplet = self.arch + '-linux-android'
return triplet
def gen_gcc_toolchain_path(self):
path = 'toolchains'
if sys.platform.startswith('linux'):
toolchain_host = 'linux'
elif sys.platform.startswith('darwin'):
toolchain_host = 'darwin'
elif sys.platform.startswith('win32') or sys.platform.startswith('cygwin'):
toolchain_host = 'windows'
else: raise Exception('Unsupported by NDK host platform')
toolchain_host += '-'
# Assuming we are building on x86
if sys.maxsize > 2**32:
toolchain_host += 'x86_64'
else: toolchain_host += 'x86'
if self.is_clang():
if self.ndk_rev < 19:
raise Exception('Clang is not supported for this NDK')
toolchain_folder = 'llvm'
else:
if self.is_x86() or self.is_amd64():
toolchain_folder = self.arch + '-' + self.toolchain
elif self.is_arm():
toolchain_folder = 'arm-linux-androideabi-' + self.toolchain
else:
toolchain_folder = self.arch + '-linux-android-' + self.toolchain
return os.path.abspath(os.path.join(self.ndk_home, path, toolchain_folder, 'prebuilt', toolchain_host))
def gen_toolchain_path(self):
if self.is_clang():
if self.is_x86():
triplet = 'i686-linux-android{}-'.format(self.api)
elif self.is_arm():
triplet = 'armv7a-linux-androideabi{}-'.format(self.api)
else:
triplet = self.arch + '-linux-android{}-'.format(self.api)
else:
triplet = self.ndk_triplet() + '-'
return os.path.join(self.gen_gcc_toolchain_path(), 'bin', triplet)
def cc(self):
if self.is_host():
return 'clang'
return self.toolchain_path + ('clang' if self.is_clang() else 'gcc')
def cxx(self):
if self.is_host():
return 'clang++'
return self.toolchain_path + ('clang++' if self.is_clang() else 'g++')
def system_stl(self):
# TODO: proper STL support
return os.path.abspath(os.path.join(self.ndk_home, 'sources', 'cxx-stl', 'system', 'include'))
def libsysroot(self):
arch = self.arch
if self.is_arm():
arch = 'arm'
elif self.is_arm64():
arch = 'arm64'
path = 'platforms/android-{}/arch-{}'.format(self.api, arch)
return os.path.abspath(os.path.join(self.ndk_home, path))
def sysroot(self):
if self.ndk_rev >= 19 or self.is_host():
return os.path.abspath(os.path.join(self.ndk_home, 'sysroot'))
else:
return self.libsysroot()
def clang_host_triplet(self):
triplet = ''
if self.is_arm():
triplet += 'arm'
elif self.is_x86():
triplet += 'i686'
else:
triplet += self.arch
triplet += '-linux-android'
return triplet
def cflags(self):
cflags = []
if self.is_host():
cflags += ['-nostdlib', '--target=%s' % self.clang_host_triplet()]
if self.ndk_rev < 20:
cflags += ['--sysroot={0}'.format(self.sysroot())]
elif self.is_host():
cflags += ['-isysroot={0}'.format(self.sysroot())]
cflags += ['-DANDROID', '-D__ANDROID__']
cflags += ['-I{0}'.format(self.system_stl())]
if self.is_arm():
if self.arch == 'armeabi-v7a':
# ARMv7 support
cflags += ['-mthumb', '-mfpu=neon', '-mcpu=cortex-a9', '-DHAVE_EFFICIENT_UNALIGNED_ACCESS', '-DVECTORIZE_SINCOS']
if not self.is_clang():
cflags += [ '-mvectorize-with-neon-quad' ]
if self.is_hardfloat:
cflags += ['-D_NDK_MATH_NO_SOFTFP=1', '-mhard-float', '-mfloat-abi=hard', '-DLOAD_HARDFP', '-DSOFTFP_LINK']
else:
cflags += ['-mfloat-abi=softfp']
else:
# ARMv5 support
cflags += ['-march=armv5te', '-mtune=xscale', '-msoft-float']
elif self.is_x86():
cflags += ['-mtune=atom', '-march=atom', '-mssse3', '-mfpmath=sse', '-DVECTORIZE_SINCOS', '-DHAVE_EFFICIENT_UNALIGNED_ACCESS']
return cflags
# they go before object list
def linkflags(self):
linkflags = []
if self.is_host():
linkflags += ['-fuse-ld=lld', '-nostdlib', '--target=%s' % self.clang_host_triplet(),
'--gcc-toolchain=%s' % self.gen_gcc_toolchain_path()]
if self.ndk_rev < 20 or self.is_host():
linkflags += ['--sysroot={0}'.format(self.libsysroot())]
if self.is_host():
linkflags += ['-L{0}/usr/lib/{1}'.format(self.sysroot(), self.ndk_triplet()),
'-L{0}/sysroot/usr/lib/{1}/'.format(self.gen_gcc_toolchain_path(), self.ndk_triplet())]
return linkflags
def ldflags(self):
ldflags = ['-lgcc', '-no-canonical-prefixes']
if self.is_arm():
if self.arch == 'armeabi-v7a':
ldflags += ['-march=armv7-a']
if not self.is_host(): # lld only
ldflags += ['-Wl,--fix-cortex-a8']
ldflags += ['-mthumb']
if self.is_hardfloat:
ldflags += ['-Wl,--no-warn-mismatch', '-lm_hard']
else:
ldflags += ['-march=armv5te']
return ldflags
def options(opt):
android = opt.add_option_group('Android options')
android.add_option('--android', action='store', dest='ANDROID_OPTS', default=None,
help='enable building for android, format: --android=<arch>,<toolchain>,<api>, example: --android=armeabi-v7a-hard,4.9,9')
def configure(conf):
if conf.options.ANDROID_OPTS:
values = conf.options.ANDROID_OPTS.split(',')
if len(values) != 3:
conf.fatal('Invalid --android paramater value!')
valid_archs = ['x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'armeabi-v7a-hard', 'aarch64', 'mipsel', 'mips64el']
if values[0] not in valid_archs:
conf.fatal('Unknown arch: {}. Supported: {}'.format(values[0], ', '.join(valid_archs)))
android = Android(conf, values[0], values[1], int(values[2]))
setattr(conf, 'android', android)
conf.environ['CC'] = android.cc()
conf.environ['CXX'] = android.cxx()
conf.env.CFLAGS += android.cflags()
conf.env.CXXFLAGS += android.cflags()
conf.env.LINKFLAGS += android.linkflags()
conf.env.LDFLAGS += android.ldflags()
conf.env.HAVE_M = True
if android.is_hardfp():
conf.env.LIB_M = ['m_hard']
else: conf.env.LIB_M = ['m']
conf.env.PREFIX = '/lib/{}'.format(android.arch)
conf.msg('Selected Android NDK', '{}, version: {}'.format(android.ndk_home, android.ndk_rev))
# no need to print C/C++ compiler, as it would be printed by compiler_c/cxx
conf.msg('... C/C++ flags', ' '.join(android.cflags()).replace(android.ndk_home, '$NDK'))
conf.msg('... link flags', ' '.join(android.linkflags()).replace(android.ndk_home, '$NDK'))
conf.msg('... ld flags', ' '.join(android.ldflags()).replace(android.ndk_home, '$NDK'))
# conf.env.ANDROID_OPTS = android
conf.env.DEST_OS2 = 'android'
# else:
# conf.load('compiler_c compiler_cxx') # Use host compiler :)
def post_compiler_cxx_configure(conf):
if conf.options.ANDROID_OPTS:
if conf.android.ndk_rev == 19:
conf.env.CXXFLAGS_cxxshlib += ['-static-libstdc++']
conf.env.LDFLAGS_cxxshlib += ['-static-libstdc++']
return
def post_compiler_c_configure(conf):
return
from waflib.Tools import compiler_cxx, compiler_c
compiler_cxx_configure = getattr(compiler_cxx, 'configure')
compiler_c_configure = getattr(compiler_c, 'configure')
def patch_compiler_cxx_configure(conf):
compiler_cxx_configure(conf)
post_compiler_cxx_configure(conf)
def patch_compiler_c_configure(conf):
compiler_c_configure(conf)
post_compiler_c_configure(conf)
setattr(compiler_cxx, 'configure', patch_compiler_cxx_configure)
setattr(compiler_c, 'configure', patch_compiler_c_configure)