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192 lines
6.7 KiB
Python
192 lines
6.7 KiB
Python
import os.path
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import platform
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import shutil
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from typing import Union
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def with_ccache(command: str) -> str:
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ccache = shutil.which('ccache')
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if ccache is None:
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return command
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else:
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return f'{ccache} {command}'
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android_abis = {
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'armeabi-v7a': {
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'arch': 'armv7a-linux-androideabi',
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'ndk_arch': 'arm',
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'cflags': '-fpic -mfpu=neon -mfloat-abi=softfp',
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},
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'arm64-v8a': {
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'arch': 'aarch64-linux-android',
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'ndk_arch': 'arm64',
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'cflags': '-fpic',
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},
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'x86': {
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'arch': 'i686-linux-android',
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'ndk_arch': 'x86',
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'cflags': '-fPIC -march=i686 -mtune=intel -mssse3 -mfpmath=sse -m32',
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},
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'x86_64': {
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'arch': 'x86_64-linux-android',
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'ndk_arch': 'x86_64',
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'cflags': '-fPIC -m64',
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},
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}
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# https://developer.android.com/ndk/guides/other_build_systems
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def build_arch() :
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platforms = {
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'Linux': 'linux-x86_64',
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'Windows': 'windows-x86_64',
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'Darwin': 'darwin-x86_64' # Despite the x86_64 tag in the Darwin name, those are fat binaries that include M1 support.
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}
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return platforms.get(platform.system())
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class AndroidNdkToolchain:
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def __init__(self, top_path: str, lib_path: str,
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tarball_path: str, src_path: str,
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ndk_path: str, android_abi: str,
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use_cxx):
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# select the NDK target
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abi_info = android_abis[android_abi]
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host_triplet = abi_info['arch']
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arch_path = os.path.join(lib_path, host_triplet)
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self.tarball_path = tarball_path
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self.src_path = src_path
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self.build_path = os.path.join(arch_path, 'build')
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ndk_arch = abi_info['ndk_arch']
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android_api_level = '24'
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install_prefix = os.path.join(arch_path, 'root')
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self.host_triplet = host_triplet
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self.install_prefix = install_prefix
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llvm_path = os.path.join(ndk_path, 'toolchains', 'llvm', 'prebuilt', build_arch())
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llvm_triple = host_triplet + android_api_level
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common_flags = '-Os -g'
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common_flags += ' ' + abi_info['cflags']
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llvm_bin = os.path.join(llvm_path, 'bin')
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self.cc = with_ccache(os.path.join(llvm_bin, 'clang'))
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self.cxx = with_ccache(os.path.join(llvm_bin, 'clang++'))
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common_flags += ' -target ' + llvm_triple
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common_flags += ' -fvisibility=hidden -fdata-sections -ffunction-sections'
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self.ar = os.path.join(llvm_bin, 'llvm-ar')
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self.arflags = 'rcs'
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self.ranlib = os.path.join(llvm_bin, 'llvm-ranlib')
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self.nm = os.path.join(llvm_bin, 'llvm-nm')
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self.strip = os.path.join(llvm_bin, 'llvm-strip')
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self.cflags = common_flags
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self.cxxflags = common_flags
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self.cppflags = ' -isystem ' + os.path.join(install_prefix, 'include')
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self.ldflags = ' -L' + os.path.join(install_prefix, 'lib') + \
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' -Wl,--exclude-libs=ALL' + \
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' ' + common_flags
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self.ldflags = common_flags
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self.libs = ''
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self.is_arm = ndk_arch == 'arm'
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self.is_armv7 = self.is_arm and 'armv7' in self.cflags
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self.is_aarch64 = ndk_arch == 'arm64'
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self.is_windows = False
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self.is_android = True
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self.is_darwin = False
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libstdcxx_flags = ''
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libstdcxx_cxxflags = ''
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libstdcxx_ldflags = ''
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libstdcxx_libs = '-static-libstdc++'
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if self.is_armv7:
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# On 32 bit ARM, clang generates no ".eh_frame" section;
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# instead, the LLVM unwinder library is used for unwinding
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# the stack after a C++ exception was thrown
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libstdcxx_libs += ' -lunwind'
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if use_cxx:
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self.cxxflags += ' ' + libstdcxx_cxxflags
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self.ldflags += ' ' + libstdcxx_ldflags
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self.libs += ' ' + libstdcxx_libs
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self.env = dict(os.environ)
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# redirect pkg-config to use our root directory instead of the
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# default one on the build host
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bin_dir = os.path.join(install_prefix, 'bin')
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os.makedirs(bin_dir, exist_ok=True)
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self.pkg_config = shutil.copy(os.path.join(top_path, 'build', 'pkg-config.sh'),
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os.path.join(bin_dir, 'pkg-config'))
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self.env['PKG_CONFIG'] = self.pkg_config
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class MingwToolchain:
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def __init__(self, top_path: str,
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toolchain_path, host_triplet, x64: bool,
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tarball_path, src_path, build_path, install_prefix):
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self.host_triplet = host_triplet
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self.tarball_path = tarball_path
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self.src_path = src_path
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self.build_path = build_path
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self.install_prefix = install_prefix
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toolchain_bin = os.path.join(toolchain_path, 'bin')
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self.cc = with_ccache(os.path.join(toolchain_bin, host_triplet + '-gcc'))
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self.cxx = with_ccache(os.path.join(toolchain_bin, host_triplet + '-g++'))
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self.ar = os.path.join(toolchain_bin, host_triplet + '-ar')
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self.arflags = 'rcs'
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self.ranlib = os.path.join(toolchain_bin, host_triplet + '-ranlib')
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self.nm = os.path.join(toolchain_bin, host_triplet + '-nm')
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self.strip = os.path.join(toolchain_bin, host_triplet + '-strip')
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self.windres = os.path.join(toolchain_bin, host_triplet + '-windres')
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common_flags = '-O2 -g'
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if not x64:
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# enable SSE support which is required for LAME
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common_flags += ' -march=pentium3'
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self.cflags = common_flags
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self.cxxflags = common_flags
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self.cppflags = '-isystem ' + os.path.join(install_prefix, 'include') + \
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' -DWINVER=0x0600 -D_WIN32_WINNT=0x0600'
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self.ldflags = '-L' + os.path.join(install_prefix, 'lib') + \
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' -static'
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self.libs = ''
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# Explicitly disable _FORTIFY_SOURCE because it is broken with
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# mingw. This prevents some libraries such as libFLAC to
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# enable it.
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self.cppflags += ' -D_FORTIFY_SOURCE=0'
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self.is_arm = host_triplet.startswith('arm')
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self.is_armv7 = self.is_arm and 'armv7' in self.cflags
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self.is_aarch64 = host_triplet == 'aarch64'
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self.is_windows = 'mingw32' in host_triplet
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self.is_android = False
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self.is_darwin = False
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self.env = dict(os.environ)
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# redirect pkg-config to use our root directory instead of the
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# default one on the build host
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import shutil
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bin_dir = os.path.join(install_prefix, 'bin')
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os.makedirs(bin_dir, exist_ok=True)
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self.pkg_config = shutil.copy(os.path.join(top_path, 'build', 'pkg-config.sh'),
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os.path.join(bin_dir, 'pkg-config'))
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self.env['PKG_CONFIG'] = self.pkg_config
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AnyToolchain = Union[AndroidNdkToolchain, MingwToolchain]
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