Added native code cross-compilation script for Android

This commit is contained in:
renaud gaudin 2013-04-04 00:59:13 +02:00
parent 3ca441c48b
commit 3317a36e31
2 changed files with 325 additions and 0 deletions

293
create_libkiwix.so.py Executable file
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#!/usr/bin/env python
''' Compiles Kiwix dependencies for Android
. Compile liblzma
. Compile libzim
. Compile libkiwix '''
import os
import sys
import copy
import shutil
from subprocess import call, check_output
# switchs for debugging purposes ; please ignore.
CREATE_TOOLCHAIN = True
COMPILE_LIBLZMA = True
COMPILE_LIBZIM = True
COMPILE_LIBKIWIX = True
STRIP_LIBKIWIX = False
# store the OS's environment PATH as we'll mess with it
# ORIGINAL_ENVIRON_PATH = os.environ.get('PATH')
ORIGINAL_ENVIRON = copy.deepcopy(os.environ)
# the directory of this file for relative referencing
CURRENT_PATH = os.path.dirname(os.path.abspath(__file__))
PLATFORMS = {
'arm-linux-androideabi': 'arm-linux-androideabi',
'mipsel-linux-android': 'mipsel-linux-android',
'x86': 'i686-linux-android'}
# store host machine name
UNAME = check_output(['uname', '-s']).strip()
# target platform to compile for
# list of available toolchains in <NDK_PATH>/toolchains
# arm-linux-androideabi, mipsel-linux-android, x86, llvm
ARCHS = ('arm-linux-androideabi', 'mipsel-linux-android', 'x86')
# compiler version to use
# list of available toolchains in <NDK_PATH>/toolchains
# 4.4.3, 4.6, 4.7, clang3.1, clang3.2
COMPILER_VERSION = '4.6' # /!\ doesn't work with 4.7
# location of Android NDK
NDK_PATH = os.environ.get('NDK_PATH',
os.path.join(os.path.dirname(CURRENT_PATH),
'src', 'dependencies',
'android-ndk-r8e'))
# Target Android EABI/version to compile for.
# list of available platforms in <NDK_PATH>/platforms
# android-14, android-3, android-4, android-5, android-8, android-9
NDK_PLATFORM = os.environ.get('NDK_PLATFORM', 'android-9')
# will contain the different prepared toolchains for a specific build
PLATFORM_PREFIX = os.environ.get('PLATFORM_PREFIX',
os.path.join(CURRENT_PATH, 'platforms'))
if not os.path.exists(PLATFORM_PREFIX):
os.makedirs(PLATFORM_PREFIX)
# root folder for liblzma
LIBLZMA_SRC = os.path.join(os.path.dirname(CURRENT_PATH),
'src', 'dependencies', 'xz-5.0.4')
# headers for liblzma
LIBLZMA_INCLUDES = [os.path.join(LIBLZMA_SRC, 'src', 'liblzma', 'api')]
# root folder for libzim
LIBZIM_SRC = os.path.join(os.path.dirname(CURRENT_PATH),
'src', 'zimlib')
# headers for libzim
LIBZIM_INCLUDES = [os.path.join(LIBZIM_SRC, 'include')]
# source files for building libzim
LIBZIM_SOURCE_FILES = ('article.cpp', 'articlesearch.cpp', 'cluster.cpp',
'dirent.cpp', 'file.cpp', 'fileheader.cpp',
'fileimpl.cpp', 'indexarticle.cpp', 'ptrstream.cpp',
'search.cpp', 'template.cpp', 'unicode.cpp', 'uuid.cpp',
'zintstream.cpp', 'envvalue.cpp', 'lzmastream.cpp',
'unlzmastream.cpp', 'fstream.cpp', 'md5.cpp',
'md5stream.cpp')
# root folder for libkiwix
LIBKIWIX_SRC = os.path.join(os.path.dirname(CURRENT_PATH),
'src', 'common')
# list of path that should already be set
REQUIRED_PATHS = (NDK_PATH, PLATFORM_PREFIX,
LIBLZMA_SRC, LIBZIM_SRC, LIBKIWIX_SRC)
def fail_on_missing(path):
''' check existence of path and error msg + exit if it fails '''
if not os.path.exists(path):
print(u"Required PATH is missing or misdefined: %s.\n"
u"Check that you have installed the Android NDK properly "
u"and run 'make' in 'src/dependencies'" % path)
sys.exit(1)
def syscall(args, in_bash=False):
''' make a system call via bash '''
args = args.split()
if in_bash:
args = ['/bin/bash'] + args
print(u"-----------\n" + u" ".join(args) + u"\n-----------")
call(args, shell=False)
def change_env(values):
''' update a set of environment variables '''
for k, v in values.items():
os.environ[k] = v
# check that required paths are in place before we start
for path in REQUIRED_PATHS:
fail_on_missing(path)
for arch in ARCHS:
# second name of the platform ; used as subfolder in platform/
arch_full = PLATFORMS.get(arch)
# store where we are so we can go back
curdir = os.getcwd()
# platform contains the toolchain
platform = os.path.join(PLATFORM_PREFIX, arch)
# prepare the toolchain
toolchain = '%(arch)s-%(version)s' % {'arch': arch,
'version': COMPILER_VERSION}
toolchain_cmd = ('%(NDK_PATH)s/build/tools/make-standalone-toolchain.sh '
'--toolchain=%(toolchain)s '
'--platform=%(NDK_PLATFORM)s '
'--install-dir=%(PLATFORM_PREFIX)s'
% {'NDK_PATH': NDK_PATH,
'NDK_PLATFORM': NDK_PLATFORM,
'toolchain': toolchain,
'PLATFORM_PREFIX': platform})
# required for compilation on an OSX host
if UNAME == 'Darwin':
toolchain_cmd += ' --system=darwin-x86_64'
if CREATE_TOOLCHAIN:
# copies the precompiled toolchain for the platform:
# includes gcc, headers and tools.
syscall(toolchain_cmd, in_bash=True)
# add a symlink for liblto_plugin.so to work
# could not find how to direct gcc to the right folder
ln_src = '%(platform)s/libexec' % {'platform': platform}
dest = '%(platform)s/%(arch_full)s' % {'platform': platform,
'arch_full': arch_full}
syscall('ln -s %(src)s %(dest)s/'
% {'src': ln_src, 'dest': dest})
# change the PATH for compilation to use proper tools
new_environ = {'PATH': ('%(platform)s/bin:%(platform)s/%(arch_full)s'
'/bin:%(platform)s/libexec/gcc/%(arch_full)s/'
'%(gccver)s/:%(orig)s'
% {'platform': platform,
'orig': ORIGINAL_ENVIRON['PATH'],
'arch_full': arch_full,
'gccver': COMPILER_VERSION}),
'CFLAGS': ' -fPIC '
}
change_env(new_environ)
# compile liblzma.a, liblzma.so
os.chdir(LIBLZMA_SRC)
configure_cmd = ('./configure --host=%(arch)s --prefix=%(platform)s '
'--disable-assembler --enable-shared --enable-static'
% {'arch': arch_full,
'platform': platform})
if COMPILE_LIBLZMA:
# configure, compile, copy and clean liblzma from official sources.
# even though we need only static, we conpile also shared so it
# switches the -fPIC properly.
syscall(configure_cmd, in_bash=True)
syscall('make clean')
syscall('make')
syscall('make install')
syscall('make clean')
# create libzim.a
os.chdir(curdir)
platform_includes = [
'%(platform)s/include/c++/%(gccver)s/'
% {'platform': platform, 'gccver': COMPILER_VERSION},
'%(platform)s/include/c++/%(gccver)s/%(arch_full)s'
% {'platform': platform, 'gccver': COMPILER_VERSION,
'arch_full': arch_full},
'%(platform)s/sysroot/usr/include/'
% {'platform': platform},
'%(platform)s/lib/gcc/%(arch_full)s/'
'%(gccver)s/include'
% {'platform': platform, 'arch_full': arch_full,
'gccver': COMPILER_VERSION},
'%(platform)s/lib/gcc/%(arch_full)s/%(gccver)s'
'/include-fixed'
% {'platform': platform, 'arch_full': arch_full,
'gccver': COMPILER_VERSION},
'%(platform)s/sysroot/usr/include/linux/'
% {'platform': platform}
]
src_dir = os.path.join(LIBZIM_SRC, 'src')
compile_cmd = ('g++ -fPIC -c -D_FILE_OFFSET_BITS=64 '
'-D_LARGEFILE64_SOURCE '
'-B%(platform)s/sysroot '
'%(source_files)s -I%(include_paths)s '
% {'platform': platform,
'arch_full': arch_full,
'gccver': COMPILER_VERSION,
'source_files': ' '.join([os.path.join(src_dir, src)
for src
in LIBZIM_SOURCE_FILES]),
'include_paths': ' -I'.join(LIBLZMA_INCLUDES
+ LIBZIM_INCLUDES
+ platform_includes)})
link_cmd = ('ar rvs libzim.a '
'%(obj_files)s '
% {'obj_files': ' '.join([n.replace('.cpp', '.o')
for n in LIBZIM_SOURCE_FILES])})
if COMPILE_LIBZIM:
syscall(compile_cmd)
syscall(link_cmd)
libzim_file = os.path.join(curdir, 'libzim.a')
shutil.copy(libzim_file, os.path.join(platform, 'lib'))
os.remove(libzim_file)
for src in LIBZIM_SOURCE_FILES:
os.remove(src.replace('.cpp', '.o'))
# compile JNI header
syscall('javac JNIKiwix.java')
syscall('javah -jni JNIKiwix')
# create libkiwix.so
os.chdir(curdir)
compile_cmd = ('g++ -fPIC -c -B%(platform)s/sysroot '
'kiwix.c %(kwsrc)s/kiwix/reader.cpp %(kwsrc)s'
'/stringTools.cpp '
'-I%(include_paths)s '
% {'platform': platform,
'arch_full': arch_full,
'gccver': COMPILER_VERSION,
'kwsrc': LIBKIWIX_SRC,
'include_paths': ' -I'.join(LIBLZMA_INCLUDES
+ LIBZIM_INCLUDES
+ platform_includes
+ [LIBKIWIX_SRC,
os.path.join(LIBZIM_SRC,
'include')])
})
link_cmd = ('g++ -fPIC -shared -B%(platform)s/sysroot '
'--sysroot %(platform)s/sysroot '
'-nostdlib '
'kiwix.o reader.o stringTools.o '
'%(platform)s/lib/libzim.a %(platform)s/lib/liblzma.a '
'-L%(platform)s/%(arch_full)s/lib '
# '-lgnustl_shared -llog -landroid -lstdc++ '
'%(platform)s/lib/gcc/%(arch_full)s/%(gccver)s/libgcc.a '
'-o %(platform)s/lib/libkiwix.so'
% {'kwsrc': LIBKIWIX_SRC,
'platform': platform,
'arch_full': arch_full,
'gccver': COMPILER_VERSION})
if COMPILE_LIBKIWIX:
syscall(compile_cmd)
syscall(link_cmd)
for obj in ('kiwix.o', 'reader.o', 'stringTools.o'):
os.remove(obj)
if STRIP_LIBKIWIX:
syscall('%(platform)s/%(arch_full)s/bin/strip '
'%(platform)s/lib/libkiwix.so'
% {'platform': platform,
'arch_full': arch_full})
os.chdir(curdir)
change_env(ORIGINAL_ENVIRON)

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devel_build-libkiwix.so.sh Executable file
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#!/bin/bash
# this script is just for testing purposes
# it helps generate a libkiwix.so on a dev linux machine to assist
# with JNI debugging.
# change the following to point to absolute of kiwix repo.
KIWIX_ROOT=`pwd`/../
cd $KIWIX_ROOT
# compilation de liblzma.a
cd src/dependencies/xz-5.0.4
CFLAGS=" -fPIC " ./configure --disable-assembler --enable-shared --enable-static
make
cp src/liblzma/.libs/liblzma.a $KIWIX_ROOT/android/
make clean
# compile libzim.a
cd $KIWIX_ROOT/src/zimlib/src
g++ -fPIC -c -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE article.cpp articlesearch.cpp cluster.cpp dirent.cpp file.cpp fileheader.cpp fileimpl.cpp indexarticle.cpp ptrstream.cpp search.cpp template.cpp unicode.cpp uuid.cpp zintstream.cpp envvalue.cpp lzmastream.cpp unlzmastream.cpp fstream.cpp md5.cpp md5stream.cpp -I. -I../include/ -I../../dependencies/xz-5.0.4/src/liblzma/api/
ar rvs libzim.a article.o articlesearch.o cluster.o dirent.o file.o fileheader.o fileimpl.o indexarticle.o ptrstream.o search.o template.o unicode.o uuid.o zintstream.o envvalue.o lzmastream.o unlzmastream.o fstream.o md5.o md5stream.o
cp libzim.a $KIWIX_ROOT/android/
rm *.o
# compile libkiwix
cd $KIWIX_ROOT/android/
rm *.o
g++ -fPIC -c kiwix.c $KIWIX_ROOT/src/common/kiwix/reader.cpp $KIWIX_ROOT/src/common/stringTools.cpp -I$KIWIX_ROOT/src/zimlib/include -I../../dependencies/xz-5.0.4/src/liblzma/api/ -I$KIWIX_ROOT/src/common -I/usr/lib/jvm/java-7-openjdk-amd64/include/
g++ -fPIC -shared kiwix.o reader.o stringTools.o libzim.a liblzma.a /usr/lib/gcc/x86_64-linux-gnu/4.7/libgcc.a -o libkiwix.so
ls -lh libkiwix.so