from distutils.spawn import find_executable
from os import environ
from os.path import (exists, join, dirname, split)
from glob import glob
from pythonforandroid.recipe import Recipe
from pythonforandroid.util import BuildInterruptingException, build_platform
class Arch(object):
toolchain_prefix = None
'''The prefix for the toolchain dir in the NDK.'''
command_prefix = None
'''The prefix for NDK commands such as gcc.'''
def __init__(self, ctx):
super(Arch, self).__init__()
self.ctx = ctx
# Allows injecting additional linker paths used by any recipe.
# This can also be modified by recipes (like the librt recipe)
# to make sure that some sort of global resource is available &
# linked for all others.
self.extra_global_link_paths = []
def __str__(self):
return self.arch
@property
def include_dirs(self):
return [
"{}/{}".format(
self.ctx.include_dir,
d.format(arch=self))
for d in self.ctx.include_dirs]
@property
def target(self):
target_data = self.command_prefix.split('-')
return '-'.join(
[target_data[0], 'none', target_data[1], target_data[2]])
def get_env(self, with_flags_in_cc=True, clang=False):
env = {}
cflags = [
'-DANDROID',
'-fomit-frame-pointer',
'-D__ANDROID_API__={}'.format(self.ctx.ndk_api)]
if not clang:
cflags.append('-mandroid')
else:
cflags.append('-target ' + self.target)
toolchain = '{android_host}-{toolchain_version}'.format(
android_host=self.ctx.toolchain_prefix,
toolchain_version=self.ctx.toolchain_version)
toolchain = join(self.ctx.ndk_dir, 'toolchains', toolchain,
'prebuilt', build_platform)
cflags.append('-gcc-toolchain {}'.format(toolchain))
env['CFLAGS'] = ' '.join(cflags)
# Link the extra global link paths first before anything else
# (such that overriding system libraries with them is possible)
env['LDFLAGS'] = ' ' + " ".join([
"-L'" + l.replace("'", "'\"'\"'") + "'" # no shlex.quote in py2
for l in self.extra_global_link_paths
]) + ' '
sysroot = join(self.ctx._ndk_dir, 'sysroot')
if exists(sysroot):
# post-15 NDK per
# https://android.googlesource.com/platform/ndk/+/ndk-r15-release/docs/UnifiedHeaders.md
env['CFLAGS'] += ' -isystem {}/sysroot/usr/include/{}'.format(
self.ctx.ndk_dir, self.ctx.toolchain_prefix)
env['CFLAGS'] += ' -I{}/sysroot/usr/include/{}'.format(
self.ctx.ndk_dir, self.command_prefix)
else:
sysroot = self.ctx.ndk_platform
env['CFLAGS'] += ' -I{}'.format(self.ctx.ndk_platform)
env['CFLAGS'] += ' -isysroot {} '.format(sysroot)
env['CFLAGS'] += '-I' + join(self.ctx.get_python_install_dir(),
'include/python{}'.format(
self.ctx.python_recipe.version[0:3])
)
env['LDFLAGS'] += '--sysroot={} '.format(self.ctx.ndk_platform)
env["CXXFLAGS"] = env["CFLAGS"]
env["LDFLAGS"] += " ".join(['-lm', '-L' + self.ctx.get_libs_dir(self.arch)])
if self.ctx.ndk == 'crystax':
env['LDFLAGS'] += ' -L{}/sources/crystax/libs/{} -lcrystax'.format(self.ctx.ndk_dir, self.arch)
toolchain_prefix = self.ctx.toolchain_prefix
toolchain_version = self.ctx.toolchain_version
command_prefix = self.command_prefix
env['TOOLCHAIN_PREFIX'] = toolchain_prefix
env['TOOLCHAIN_VERSION'] = toolchain_version
ccache = ''
if self.ctx.ccache and bool(int(environ.get('USE_CCACHE', '1'))):
# print('ccache found, will optimize builds')
ccache = self.ctx.ccache + ' '
env['USE_CCACHE'] = '1'
env['NDK_CCACHE'] = self.ctx.ccache
env.update({k: v for k, v in environ.items() if k.startswith('CCACHE_')})
if clang:
llvm_dirname = split(
glob(join(self.ctx.ndk_dir, 'toolchains', 'llvm*'))[-1])[-1]
clang_path = join(self.ctx.ndk_dir, 'toolchains', llvm_dirname,
'prebuilt', build_platform, 'bin')
environ['PATH'] = '{clang_path}:{path}'.format(
clang_path=clang_path, path=environ['PATH'])
exe = join(clang_path, 'clang')
execxx = join(clang_path, 'clang++')
else:
exe = '{command_prefix}-gcc'.format(command_prefix=command_prefix)
execxx = '{command_prefix}-g++'.format(command_prefix=command_prefix)
cc = find_executable(exe, path=environ['PATH'])
if cc is None:
print('Searching path are: {!r}'.format(environ['PATH']))
raise BuildInterruptingException(
'Couldn\'t find executable for CC. This indicates a '
'problem locating the {} executable in the Android '
'NDK, not that you don\'t have a normal compiler '
'installed. Exiting.'.format(exe))
if with_flags_in_cc:
env['CC'] = '{ccache}{exe} {cflags}'.format(
exe=exe,
ccache=ccache,
cflags=env['CFLAGS'])
env['CXX'] = '{ccache}{execxx} {cxxflags}'.format(
execxx=execxx,
ccache=ccache,
cxxflags=env['CXXFLAGS'])
else:
env['CC'] = '{ccache}{exe}'.format(
exe=exe,
ccache=ccache)
env['CXX'] = '{ccache}{execxx}'.format(
execxx=execxx,
ccache=ccache)
env['AR'] = '{}-ar'.format(command_prefix)
env['RANLIB'] = '{}-ranlib'.format(command_prefix)
env['LD'] = '{}-ld'.format(command_prefix)
env['LDSHARED'] = env["CC"] + " -pthread -shared " +\
"-Wl,-O1 -Wl,-Bsymbolic-functions "
if self.ctx.python_recipe and self.ctx.python_recipe.from_crystax:
# For crystax python, we can't use the host python headers:
env["CFLAGS"] += ' -I{}/sources/python/{}/include/python/'.\
format(self.ctx.ndk_dir, self.ctx.python_recipe.version[0:3])
env['STRIP'] = '{}-strip --strip-unneeded'.format(command_prefix)
env['MAKE'] = 'make -j5'
env['READELF'] = '{}-readelf'.format(command_prefix)
env['NM'] = '{}-nm'.format(command_prefix)
hostpython_recipe = Recipe.get_recipe(
'host' + self.ctx.python_recipe.name, self.ctx)
env['BUILDLIB_PATH'] = join(
hostpython_recipe.get_build_dir(self.arch),
'build', 'lib.{}-{}'.format(
build_platform, self.ctx.python_recipe.major_minor_version_string)
)
env['PATH'] = environ['PATH']
env['ARCH'] = self.arch
env['NDK_API'] = 'android-{}'.format(str(self.ctx.ndk_api))
if self.ctx.python_recipe and self.ctx.python_recipe.from_crystax:
env['CRYSTAX_PYTHON_VERSION'] = self.ctx.python_recipe.version
return env
class ArchARM(Arch):
arch = "armeabi"
toolchain_prefix = 'arm-linux-androideabi'
command_prefix = 'arm-linux-androideabi'
platform_dir = 'arch-arm'
@property
def target(self):
target_data = self.command_prefix.split('-')
return '-'.join(
['armv7a', 'none', target_data[1], target_data[2]])
class ArchARMv7_a(ArchARM):
arch = 'armeabi-v7a'
def get_env(self, with_flags_in_cc=True, clang=False):
env = super(ArchARMv7_a, self).get_env(with_flags_in_cc, clang=clang)
env['CFLAGS'] = (env['CFLAGS'] +
(' -march=armv7-a -mfloat-abi=softfp '
'-mfpu=vfp -mthumb'))
env['CXXFLAGS'] = env['CFLAGS']
return env
class Archx86(Arch):
arch = 'x86'
toolchain_prefix = 'x86'
command_prefix = 'i686-linux-android'
platform_dir = 'arch-x86'
def get_env(self, with_flags_in_cc=True, clang=False):
env = super(Archx86, self).get_env(with_flags_in_cc, clang=clang)
env['CFLAGS'] = (env['CFLAGS'] +
' -march=i686 -mtune=intel -mssse3 -mfpmath=sse -m32')
env['CXXFLAGS'] = env['CFLAGS']
return env
class Archx86_64(Arch):
arch = 'x86_64'
toolchain_prefix = 'x86_64'
command_prefix = 'x86_64-linux-android'
platform_dir = 'arch-x86_64'
def get_env(self, with_flags_in_cc=True, clang=False):
env = super(Archx86_64, self).get_env(with_flags_in_cc, clang=clang)
env['CFLAGS'] = (env['CFLAGS'] +
' -march=x86-64 -msse4.2 -mpopcnt -m64 -mtune=intel')
env['CXXFLAGS'] = env['CFLAGS']
return env
class ArchAarch_64(Arch):
arch = 'arm64-v8a'
toolchain_prefix = 'aarch64-linux-android'
command_prefix = 'aarch64-linux-android'
platform_dir = 'arch-arm64'
def get_env(self, with_flags_in_cc=True, clang=False):
env = super(ArchAarch_64, self).get_env(with_flags_in_cc, clang=clang)
incpath = ' -I' + join(dirname(__file__), 'includes', 'arm64-v8a')
env['EXTRA_CFLAGS'] = incpath
env['CFLAGS'] += incpath
env['CXXFLAGS'] += incpath
if with_flags_in_cc:
env['CC'] += incpath
env['CXX'] += incpath
return env