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