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 $0`/ndk-common.sh 32 33 # PLATFORM is the name of the current Android system platform 34 PLATFORM=android-3 35 36 # ABI is the target ABI name for the NDK 37 ABI=arm 38 39 OPTION_HELP=no 40 OPTION_BUILD_OUT= 41 OPTION_PLATFORM= 42 OPTION_PACKAGE=no 43 OPTION_ABI= 44 45 for opt do 46 optarg=`expr "x$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 69 done 70 71 if [ $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 $ABI)" 82 echo " --build-out=<path> set Android build out directory" 83 echo " --package generate sysroot package tarball" 84 echo "" 85 exit 0 86 fi 87 88 if [ -n "$OPTION_PLATFORM" ] ; then 89 PLATFORM=$OPTION_PLATFORM 90 fi 91 92 if [ -n "$OPTION_ABI" ] ; then 93 ABI=$OPTION_ABI 94 fi 95 96 case "$ABI" in 97 arm*) 98 ARCH=arm 99 ;; 100 *) 101 ARCH=$ABI 102 ;; 103 esac 104 105 106 # Get the root of the NDK from the current program location 107 NDK_ROOT=`dirname $0` 108 NDK_ROOT=`dirname $NDK_ROOT` 109 NDK_ROOT=`dirname $NDK_ROOT` 110 111 # Get the Android out directory 112 if [ -z "$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 $ANDROID_PRODUCT_OUT ] ; then 118 echo "ANDROID_PRODUCT_OUT does not point to a valid directory. Aborting" 119 exit 1 120 fi 121 else 122 ANDROID_PRODUCT_OUT=$OPTION_BUILD_OUT 123 if [ ! -d $ANDROID_PRODUCT_OUT ] ; then 124 echo "The build out path is not a valid directory: $OPTION_BUILD_OUT" 125 exit 1 126 fi 127 fi 128 129 PRODUCT_DIR=$ANDROID_PRODUCT_OUT 130 SYSROOT=$NDK_ROOT/build/platforms/$PLATFORM/arch-$ABI 131 COMMON_ROOT=$NDK_ROOT/build/platforms/$PLATFORM/common 132 133 # clean up everything in existing sysroot 134 rm -rf $SYSROOT 135 mkdir -p $SYSROOT 136 137 rm -rf $COMMON_ROOT 138 mkdir -p $COMMON_ROOT 139 140 LIB_ROOT=$SYSROOT/usr/lib 141 142 install_file () 143 { 144 mkdir -p $2/`dirname $1` 145 cp -fp $1 $2/$1 146 } 147 148 install_helper () 149 { 150 (cd $1 && find . -type f | while read ff; do install_file $ff $2; done) 151 } 152 153 TOP=$PRODUCT_DIR/../../../.. 154 155 # CRT objects that need to be copied 156 CRT_OBJS_DIR=$PRODUCT_DIR/obj/lib 157 CRT_OBJS="$CRT_OBJS_DIR/crtbegin_static.o \ 158 $CRT_OBJS_DIR/crtbegin_dynamic.o \ 159 $CRT_OBJS_DIR/crtend_android.o" 160 161 # static libraries that need to be copied. 162 STATIC_LIBS_DIR=$PRODUCT_DIR/obj/STATIC_LIBRARIES 163 STATIC_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 $STATIC_LIBS_DIR/libthread_db_intermediates/libthread_db.a" 167 168 # dynamic libraries that need to be copied. 169 DYNAMIC_LIBS_DIR=$PRODUCT_DIR/symbols/system/lib 170 DYNAMIC_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 177 rm -rf $LIB_ROOT 178 mkdir -p $LIB_ROOT 179 cp -f $CRT_OBJS $STATIC_LIBS $DYNAMIC_LIBS $LIB_ROOT 180 181 # Check $TOP/bionic to see if this is new source layout. 182 if [ -d $TOP/bionic ] ;then 183 BIONIC_ROOT=$TOP/bionic 184 LIBC_ROOT=$BIONIC_ROOT/libc 185 else 186 BIONIC_ROOT=$TOP/system 187 LIBC_ROOT=$BIONIC_ROOT/bionic 188 fi 189 190 # Copy headers. This need to be done in the reverse order of inclusion 191 # in case there are different headers with the same name. 192 ARCH_INCLUDE=$SYSROOT/usr/include 193 rm -rf $ARCH_INCLUDE 194 mkdir -p $ARCH_INCLUDE 195 196 COMMON_INCLUDE=$COMMON_ROOT/include 197 rm -rf $COMMON_INCLUDE 198 mkdir -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 # 206 common_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 } 229 230 common_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 } 240 241 arch_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 } 249 250 arch_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 262 common_header $TOP/external/zlib zlib.h 263 common_header $TOP/external/zlib zconf.h 264 265 # Jni header 266 common_header $TOP/libnativehelper/include/nativehelper jni.h 267 268 # libthread_db headers, not sure if this is needed for the NDK 269 common_headers $BIONIC_ROOT/libthread_db/include 270 271 # for libm, just copy math.h and fenv.h 272 common_header $BIONIC_ROOT/libm/include math.h 273 if [ "$ARCH" = "x86" ]; then 274 arch_header $BIONIC_ROOT/libm/include i387/fenv.h 275 else 276 arch_header $BIONIC_ROOT/libm/include $ARCH/fenv.h 277 fi 278 279 # our tiny C++ standard library 280 common_headers $BIONIC_ROOT/libstdc++/include 281 282 # C library kernel headers 283 common_headers $LIBC_ROOT/kernel/common 284 arch_headers $LIBC_ROOT/kernel/arch-$ARCH 285 286 # C library headers 287 common_headers $LIBC_ROOT/include 288 arch_headers $LIBC_ROOT/arch-$ARCH/include 289 290 # Do we need to package the result 291 if [ $OPTION_PACKAGE = yes ] ; then 292 DATE=`date +%Y%m%d` 293 PKGFILE=$TMPDIR/android-ndk-sysroot-$DATE.tar.bz2 294 tar cjf $PKGFILE build/platforms/$PLATFORM/arch-$ARCH 295 echo "Packaged in $PKGFILE" 296 fi 297
