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#!/usr/bin/env python3
import os, os.path
import sys, subprocess
if len(sys.argv) < 4:
print("Usage: build.py SDK_PATH NDK_PATH ABI [configure_args...]", file=sys.stderr)
sys.exit(1)
sdk_path = sys.argv[1]
ndk_path = sys.argv[2]
android_abi = sys.argv[3]
configure_args = sys.argv[4:]
if not os.path.isfile(os.path.join(sdk_path, 'tools', 'android')):
print("SDK not found in", ndk_path, file=sys.stderr)
sys.exit(1)
if not os.path.isdir(ndk_path):
print("NDK not found in", ndk_path, file=sys.stderr)
sys.exit(1)
android_abis = {
'armeabi-v7a': {
'arch': 'arm-linux-androideabi',
'ndk_arch': 'arm',
'toolchain_arch': 'arm-linux-androideabi',
'llvm_triple': 'armv7-linux-androideabi',
'cflags': '-march=armv7-a -mfpu=vfp -mfloat-abi=softfp',
},
'arm64-v8a': {
'arch': 'aarch64-linux-android',
'ndk_arch': 'arm64',
'toolchain_arch': 'aarch64-linux-android',
'llvm_triple': 'aarch64-linux-android',
'cflags': '',
},
'x86': {
'arch': 'i686-linux-android',
'ndk_arch': 'x86',
'toolchain_arch': 'x86',
'llvm_triple': 'i686-linux-android',
'cflags': '-march=i686 -mtune=intel -mssse3 -mfpmath=sse -m32',
},
'x86_64': {
'arch': 'x86_64-linux-android',
'ndk_arch': 'x86_64',
'toolchain_arch': 'x86_64',
'llvm_triple': 'x86_64-linux-android',
'cflags': '-m64',
},
}
# select the NDK target
abi_info = android_abis[android_abi]
arch = abi_info['arch']
# the path to the MPD sources
mpd_path = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]) or '.', '..'))
sys.path[0] = os.path.join(mpd_path, 'python')
# output directories
from build.dirs import lib_path, tarball_path, src_path
from build.meson import configure as run_meson
arch_path = os.path.join(lib_path, arch)
build_path = os.path.join(arch_path, 'build')
# build host configuration
build_arch = 'linux-x86_64'
# set up the NDK toolchain
class AndroidNdkToolchain:
def __init__(self, tarball_path, src_path, build_path,
use_cxx):
self.tarball_path = tarball_path
self.src_path = src_path
self.build_path = build_path
ndk_arch = abi_info['ndk_arch']
android_api_level = '21'
# select the NDK compiler
gcc_version = '4.9'
install_prefix = os.path.join(arch_path, 'root')
self.arch = arch
self.install_prefix = install_prefix
toolchain_path = os.path.join(ndk_path, 'toolchains', abi_info['toolchain_arch'] + '-' + gcc_version, 'prebuilt', build_arch)
llvm_path = os.path.join(ndk_path, 'toolchains', 'llvm', 'prebuilt', build_arch)
llvm_triple = abi_info['llvm_triple'] + android_api_level
common_flags = '-Os -g'
common_flags += ' -fPIC'
common_flags += ' ' + abi_info['cflags']
toolchain_bin = os.path.join(toolchain_path, 'bin')
llvm_bin = os.path.join(llvm_path, 'bin')
self.cc = os.path.join(llvm_bin, 'clang')
self.cxx = os.path.join(llvm_bin, 'clang++')
common_flags += ' -target ' + llvm_triple + ' -integrated-as -gcc-toolchain ' + toolchain_path
common_flags += ' -fvisibility=hidden -fdata-sections -ffunction-sections'
# required flags from https://android.googlesource.com/platform/ndk/+/ndk-release-r20/docs/BuildSystemMaintainers.md#additional-required-arguments
common_flags += ' -fno-addrsig'
self.ar = os.path.join(toolchain_bin, arch + '-ar')
self.ranlib = os.path.join(toolchain_bin, arch + '-ranlib')
self.nm = os.path.join(toolchain_bin, arch + '-nm')
self.strip = os.path.join(toolchain_bin, arch + '-strip')
self.cflags = common_flags
self.cxxflags = common_flags
self.cppflags = ' -isystem ' + os.path.join(install_prefix, 'include')
self.ldflags = ' -L' + os.path.join(install_prefix, 'lib') + \
' -Wl,--exclude-libs=ALL' + \
' ' + common_flags
self.ldflags = common_flags
self.libs = ''
self.is_arm = ndk_arch == 'arm'
self.is_armv7 = self.is_arm and 'armv7' in self.cflags
self.is_aarch64 = ndk_arch == 'arm64'
self.is_windows = False
libstdcxx_flags = ''
libstdcxx_cxxflags = ''
libstdcxx_ldflags = ''
libstdcxx_libs = '-static-libstdc++'
if self.is_armv7:
# On 32 bit ARM, clang generates no ".eh_frame" section;
# instead, the LLVM unwinder library is used for unwinding
# the stack after a C++ exception was thrown
libstdcxx_libs += ' -lunwind'
if use_cxx:
self.cxxflags += ' ' + libstdcxx_cxxflags
self.ldflags += ' ' + libstdcxx_ldflags
self.libs += ' ' + libstdcxx_libs
self.env = dict(os.environ)
# redirect pkg-config to use our root directory instead of the
# default one on the build host
import shutil
bin_dir = os.path.join(install_prefix, 'bin')
try:
os.makedirs(bin_dir)
except:
pass
self.pkg_config = shutil.copy(os.path.join(mpd_path, 'build', 'pkg-config.sh'),
os.path.join(bin_dir, 'pkg-config'))
self.env['PKG_CONFIG'] = self.pkg_config
# a list of third-party libraries to be used by MPD on Android
from build.libs import *
thirdparty_libs = [
libmpdclient,
libogg,
libvorbis,
opus,
flac,
libid3tag,
ffmpeg,
curl,
libexpat,
libnfs,
boost,
]
# build the third-party libraries
for x in thirdparty_libs:
toolchain = AndroidNdkToolchain(tarball_path, src_path, build_path,
use_cxx=x.use_cxx)
if not x.is_installed(toolchain):
x.build(toolchain)
# configure and build MPD
toolchain = AndroidNdkToolchain(tarball_path, src_path, build_path,
use_cxx=True)
configure_args += [
'-Dandroid_sdk=' + sdk_path,
'-Dandroid_ndk=' + ndk_path,
'-Dandroid_abi=' + android_abi,
'-Dandroid_strip=' + toolchain.strip,
]
from build.meson import configure as run_meson
run_meson(toolchain, mpd_path, '.', configure_args)
subprocess.check_call(['/usr/bin/ninja'], env=toolchain.env)
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