1#!/bin/sh 2# 3# Copyright (C) 2009 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16# 17# build-ndk-sysroot.sh 18# 19# collect files from an Android tree to assemble a sysroot suitable for 20# building a standable toolchain. 21# 22# after that, you may use build/tools/package-ndk-sysroot.sh to package 23# the resulting files for distribution. 24# 25# NOTE: this is different from the Android toolchain original build-sysroot.sh 26# script because we place target files differently. 27# 28# WARNING: For now, only a single target ABI/Architecture us supported 29# 30 31. `dirname $0`/ndk-common.sh 32 33# PLATFORM is the name of the current Android system platform 34PLATFORM=android-3 35 36# ABI is the target ABI name for the NDK 37ABI=arm 38 39OPTION_HELP=no 40OPTION_BUILD_OUT= 41OPTION_PLATFORM= 42OPTION_PACKAGE=no 43OPTION_ABI= 44 45for opt do 46 optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'` 47 case "$opt" in 48 --help|-h|-\?) OPTION_HELP=yes 49 ;; 50 --verbose) 51 VERBOSE=yes 52 ;; 53 --platform=*) 54 OPTION_PLATFORM=$optarg 55 ;; 56 --build-out=*) 57 OPTION_BUILD_OUT=$optarg 58 ;; 59 --package) 60 OPTION_PACKAGE=yes 61 ;; 62 --abi=*) 63 OPTION_ABI=$optarg 64 ;; 65 *) 66 echo "unknown option '$opt', use --help" 67 exit 1 68 esac 69done 70 71if [ $OPTION_HELP = "yes" ] ; then 72 echo "Collect files from an Android build tree and assembles a sysroot" 73 echo "suitable for building a standalone toolchain or be used by the" 74 echo "Android NDK." 75 echo "" 76 echo "options:" 77 echo "" 78 echo " --help print this message" 79 echo " --verbose enable verbose messages" 80 echo " --platform=<name> generate sysroot for platform <name> (default is $PLATFORM)" 81 echo " --abi=<name> generate sysroot for abi <name> (default is $ABI)" 82 echo " --build-out=<path> set Android build out directory" 83 echo " --package generate sysroot package tarball" 84 echo "" 85 exit 0 86fi 87 88if [ -n "$OPTION_PLATFORM" ] ; then 89 PLATFORM=$OPTION_PLATFORM 90fi 91 92if [ -n "$OPTION_ABI" ] ; then 93 ABI=$OPTION_ABI 94fi 95 96case "$ABI" in 97arm*) 98 ARCH=arm 99 ;; 100*) 101 ARCH=$ABI 102 ;; 103esac 104 105 106# Get the root of the NDK from the current program location 107NDK_ROOT=`dirname $0` 108NDK_ROOT=`dirname $NDK_ROOT` 109NDK_ROOT=`dirname $NDK_ROOT` 110 111# Get the Android out directory 112if [ -z "$OPTION_BUILD_OUT" ] ; then 113 if [ -z "$ANDROID_PRODUCT_OUT" ] ; then 114 echo "ANDROID_PRODUCT_OUT is not defined in your environment. Aborting" 115 exit 1 116 fi 117 if [ ! -d $ANDROID_PRODUCT_OUT ] ; then 118 echo "ANDROID_PRODUCT_OUT does not point to a valid directory. Aborting" 119 exit 1 120 fi 121else 122 ANDROID_PRODUCT_OUT=$OPTION_BUILD_OUT 123 if [ ! -d $ANDROID_PRODUCT_OUT ] ; then 124 echo "The build out path is not a valid directory: $OPTION_BUILD_OUT" 125 exit 1 126 fi 127fi 128 129PRODUCT_DIR=$ANDROID_PRODUCT_OUT 130SYSROOT=$NDK_ROOT/build/platforms/$PLATFORM/arch-$ABI 131COMMON_ROOT=$NDK_ROOT/build/platforms/$PLATFORM/common 132 133# clean up everything in existing sysroot 134rm -rf $SYSROOT 135mkdir -p $SYSROOT 136 137rm -rf $COMMON_ROOT 138mkdir -p $COMMON_ROOT 139 140LIB_ROOT=$SYSROOT/usr/lib 141 142install_file () 143{ 144 mkdir -p $2/`dirname $1` 145 cp -fp $1 $2/$1 146} 147 148install_helper () 149{ 150 (cd $1 && find . -type f | while read ff; do install_file $ff $2; done) 151} 152 153TOP=$PRODUCT_DIR/../../../.. 154 155# CRT objects that need to be copied 156CRT_OBJS_DIR=$PRODUCT_DIR/obj/lib 157CRT_OBJS="$CRT_OBJS_DIR/crtbegin_static.o \ 158$CRT_OBJS_DIR/crtbegin_dynamic.o \ 159$CRT_OBJS_DIR/crtend_android.o" 160 161# static libraries that need to be copied. 162STATIC_LIBS_DIR=$PRODUCT_DIR/obj/STATIC_LIBRARIES 163STATIC_LIBS="$STATIC_LIBS_DIR/libc_intermediates/libc.a \ 164$STATIC_LIBS_DIR/libm_intermediates/libm.a \ 165$STATIC_LIBS_DIR/libstdc++_intermediates/libstdc++.a 166$STATIC_LIBS_DIR/libthread_db_intermediates/libthread_db.a" 167 168# dynamic libraries that need to be copied. 169DYNAMIC_LIBS_DIR=$PRODUCT_DIR/symbols/system/lib 170DYNAMIC_LIBS="$DYNAMIC_LIBS_DIR/libdl.so \ 171$DYNAMIC_LIBS_DIR/libc.so \ 172$DYNAMIC_LIBS_DIR/libm.so \ 173$DYNAMIC_LIBS_DIR/libstdc++.so \ 174$DYNAMIC_LIBS_DIR/libthread_db.so" 175 176# Copy all CRT objects and libraries 177rm -rf $LIB_ROOT 178mkdir -p $LIB_ROOT 179cp -f $CRT_OBJS $STATIC_LIBS $DYNAMIC_LIBS $LIB_ROOT 180 181# Check $TOP/bionic to see if this is new source layout. 182if [ -d $TOP/bionic ] ;then 183 BIONIC_ROOT=$TOP/bionic 184 LIBC_ROOT=$BIONIC_ROOT/libc 185else 186 BIONIC_ROOT=$TOP/system 187 LIBC_ROOT=$BIONIC_ROOT/bionic 188fi 189 190# Copy headers. This need to be done in the reverse order of inclusion 191# in case there are different headers with the same name. 192ARCH_INCLUDE=$SYSROOT/usr/include 193rm -rf $ARCH_INCLUDE 194mkdir -p $ARCH_INCLUDE 195 196COMMON_INCLUDE=$COMMON_ROOT/include 197rm -rf $COMMON_INCLUDE 198mkdir -p $COMMON_INCLUDE 199 200# Install a common header and create the appropriate arch-specific 201# directory for it. 202# 203# $1: source directory 204# $2: header path, relative to source directory 205# 206common_header () 207{ 208 echo "Copy: $COMMON_INCLUDE/$2" 209 mkdir -p `dirname $COMMON_INCLUDE/$2` 210 install $1/$2 $COMMON_INCLUDE/$2 211 # just to be safe 212 chmod a-x $COMMON_INCLUDE/$2 213 214 # the link prefix, used to point to common/ 215 # from arch-$ARCH/usr/ 216 link_prefix=../../common/include 217 218 # we need to count the number of directory separators in $2 219 # for each one of them, we're going to prepend ../ to the 220 # link prefix 221 for item in `echo $2 | tr '/' ' '`; do 222 link_prefix=../$link_prefix 223 done 224 225 echo "Link: $ARCH_INCLUDE/$2" 226 mkdir -p `dirname $ARCH_INCLUDE/$2` 227 ln -s $link_prefix/$2 $ARCH_INCLUDE/$2 228} 229 230common_headers () 231{ 232 srcs=`cd $1 && find . -type f` 233 # remove leading ./ 234 srcs=`echo $srcs | sed -e "s%\./%%g"` 235 236 for src in $srcs; do 237 common_header $1 $src 238 done 239} 240 241arch_header () 242{ 243 echo "Copy: $ARCH_INCLUDE/$2" 244 mkdir -p `dirname $ARCH_INCLUDE/$2` 245 install $1/$2 $ARCH_INCLUDE/$2 246 # just to be safe 247 chmod a-x $ARCH_INCLUDE/$2 248} 249 250arch_headers () 251{ 252 srcs=`cd $1 && find . -type f` 253 # remove leading ./ 254 srcs=`echo $srcs | sed -e "s%\./%%g"` 255 256 for src in $srcs; do 257 arch_header $1 $src 258 done 259} 260 261# ZLib headers 262common_header $TOP/external/zlib zlib.h 263common_header $TOP/external/zlib zconf.h 264 265# Jni header 266common_header $TOP/libnativehelper/include/nativehelper jni.h 267 268# libthread_db headers, not sure if this is needed for the NDK 269common_headers $BIONIC_ROOT/libthread_db/include 270 271# for libm, just copy math.h and fenv.h 272common_header $BIONIC_ROOT/libm/include math.h 273if [ "$ARCH" = "x86" ]; then 274 arch_header $BIONIC_ROOT/libm/include i387/fenv.h 275else 276 arch_header $BIONIC_ROOT/libm/include $ARCH/fenv.h 277fi 278 279# our tiny C++ standard library 280common_headers $BIONIC_ROOT/libstdc++/include 281 282# C library kernel headers 283common_headers $LIBC_ROOT/kernel/common 284arch_headers $LIBC_ROOT/kernel/arch-$ARCH 285 286# C library headers 287common_headers $LIBC_ROOT/include 288arch_headers $LIBC_ROOT/arch-$ARCH/include 289 290# Do we need to package the result 291if [ $OPTION_PACKAGE = yes ] ; then 292 DATE=`date +%Y%m%d` 293 PKGFILE=$TMPDIR/android-ndk-sysroot-$DATE.tar.bz2 294 tar cjf $PKGFILE build/platforms/$PLATFORM/arch-$ARCH 295 echo "Packaged in $PKGFILE" 296fi 297