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 "$opt" in 48 --help|-h|-\?) OPTION_HELP=yes 49 ;; 50 --verbose) 51 if [ "$VERBOSE" = "yes" ] ; then 52 VERBOSE2=yes 53 else 54 VERBOSE=yes 55 fi 56 ;; 57 --platform=*) 58 OPTION_PLATFORM=$optarg 59 ;; 60 --build-out=*) 61 OPTION_BUILD_OUT=$optarg 62 ;; 63 --package) 64 OPTION_PACKAGE=yes 65 ;; 66 --abi=*) 67 OPTION_ABI=$optarg 68 ;; 69 *) 70 echo "unknown option '$opt', use --help" 71 exit 1 72 esac 73done 74 75if [ $OPTION_HELP = "yes" ] ; then 76 echo "Collect files from an Android build tree and assembles a sysroot" 77 echo "suitable for building a standalone toolchain or be used by the" 78 echo "Android NDK." 79 echo "" 80 echo "options:" 81 echo "" 82 echo " --help print this message" 83 echo " --verbose enable verbose messages" 84 echo " --platform=<name> generate sysroot for platform <name> (default is $PLATFORM)" 85 echo " --abi=<name> generate sysroot for abi <name> (default is $ABI)" 86 echo " --build-out=<path> set Android build out directory" 87 echo " --package generate sysroot package tarball" 88 echo "" 89 exit 0 90fi 91 92if [ -n "$OPTION_PLATFORM" ] ; then 93 PLATFORM=$OPTION_PLATFORM 94fi 95 96if [ -n "$OPTION_ABI" ] ; then 97 ABI=$OPTION_ABI 98fi 99 100case "$ABI" in 101arm*) 102 ARCH=arm 103 ;; 104*) 105 ARCH=$ABI 106 ;; 107esac 108 109 110# Get the root of the NDK from the current program location 111NDK_ROOT=`dirname $0` 112NDK_ROOT=`dirname $NDK_ROOT` 113NDK_ROOT=`dirname $NDK_ROOT` 114 115# Get the Android out directory 116if [ -z "$OPTION_BUILD_OUT" ] ; then 117 if [ -z "$ANDROID_PRODUCT_OUT" ] ; then 118 echo "ANDROID_PRODUCT_OUT is not defined in your environment. Aborting" 119 exit 1 120 fi 121 if [ ! -d $ANDROID_PRODUCT_OUT ] ; then 122 echo "ANDROID_PRODUCT_OUT does not point to a valid directory. Aborting" 123 exit 1 124 fi 125else 126 ANDROID_PRODUCT_OUT=$OPTION_BUILD_OUT 127 if [ ! -d $ANDROID_PRODUCT_OUT ] ; then 128 echo "The build out path is not a valid directory: $OPTION_BUILD_OUT" 129 exit 1 130 fi 131fi 132 133PRODUCT_DIR=$ANDROID_PRODUCT_OUT 134SYSROOT=$NDK_ROOT/build/platforms/$PLATFORM/arch-$ABI 135COMMON_ROOT=$NDK_ROOT/build/platforms/$PLATFORM/common 136 137# clean up everything in existing sysroot 138rm -rf $SYSROOT 139mkdir -p $SYSROOT 140 141rm -rf $COMMON_ROOT 142mkdir -p $COMMON_ROOT 143 144LIB_ROOT=$SYSROOT/usr/lib 145INCLUDE_ROOT=$SYSROOT/usr/include 146 147install_file () 148{ 149 mkdir -p $2/`dirname $1` 150 cp -fp $1 $2/$1 151} 152 153install_helper () 154{ 155 (cd $1 && find . -type f | while read ff; do install_file $ff $2; done) 156} 157 158TOP=$PRODUCT_DIR/../../../.. 159 160# CRT objects that need to be copied 161CRT_OBJS_DIR=$PRODUCT_DIR/obj/lib 162CRT_OBJS="$CRT_OBJS_DIR/crtbegin_static.o \ 163$CRT_OBJS_DIR/crtbegin_dynamic.o \ 164$CRT_OBJS_DIR/crtend_android.o" 165 166# static libraries that need to be copied. 167STATIC_LIBS_DIR=$PRODUCT_DIR/obj/STATIC_LIBRARIES 168STATIC_LIBS="$STATIC_LIBS_DIR/libc_intermediates/libc.a \ 169$STATIC_LIBS_DIR/libm_intermediates/libm.a \ 170$STATIC_LIBS_DIR/libstdc++_intermediates/libstdc++.a 171$STATIC_LIBS_DIR/libthread_db_intermediates/libthread_db.a" 172 173# dynamic libraries that need to be copied. 174DYNAMIC_LIBS_DIR=$PRODUCT_DIR/symbols/system/lib 175DYNAMIC_LIBS="$DYNAMIC_LIBS_DIR/libdl.so \ 176$DYNAMIC_LIBS_DIR/libc.so \ 177$DYNAMIC_LIBS_DIR/libm.so \ 178$DYNAMIC_LIBS_DIR/libstdc++.so \ 179$DYNAMIC_LIBS_DIR/libthread_db.so" 180 181# Copy all CRT objects and libraries 182rm -rf $LIB_ROOT 183mkdir -p $LIB_ROOT 184cp -f $CRT_OBJS $STATIC_LIBS $DYNAMIC_LIBS $LIB_ROOT 185 186# Check $TOP/bionic to see if this is new source layout. 187if [ -d $TOP/bionic ] ;then 188 BIONIC_ROOT=$TOP/bionic 189 LIBC_ROOT=$BIONIC_ROOT/libc 190else 191 BIONIC_ROOT=$TOP/system 192 LIBC_ROOT=$BIONIC_ROOT/bionic 193fi 194 195# Copy headers. This need to be done in the reverse order of inclusion 196# in case there are different headers with the same name. 197ARCH_INCLUDE=$SYSROOT/usr/include 198rm -rf $ARCH_INCLUDE 199mkdir -p $ARCH_INCLUDE 200 201COMMON_INCLUDE=$COMMON_ROOT/include 202rm -rf $COMMON_INCLUDE 203mkdir -p $COMMON_INCLUDE 204 205# Install a common header and create the appropriate arch-specific 206# directory for it. 207# 208# $1: source directory 209# $2: header path, relative to source directory 210# 211common_header () 212{ 213 echo "Copy: $COMMON_INCLUDE/$2" 214 mkdir -p `dirname $COMMON_INCLUDE/$2` 215 install $1/$2 $COMMON_INCLUDE/$2 216 # just to be safe 217 chmod a-x $COMMON_INCLUDE/$2 218 219 # the link prefix, used to point to common/ 220 # from arch-$ARCH/usr/ 221 link_prefix=../../common/include 222 223 # we need to count the number of directory separators in $2 224 # for each one of them, we're going to prepend ../ to the 225 # link prefix 226 for item in `echo $2 | tr '/' ' '`; do 227 link_prefix=../$link_prefix 228 done 229 230 echo "Link: $ARCH_INCLUDE/$2" 231 mkdir -p `dirname $ARCH_INCLUDE/$2` 232 ln -s $link_prefix/$2 $ARCH_INCLUDE/$2 233} 234 235common_headers () 236{ 237 srcs=`cd $1 && find . -type f` 238 # remove leading ./ 239 srcs=`echo $srcs | sed -e "s%\./%%g"` 240 241 for src in $srcs; do 242 common_header $1 $src 243 done 244} 245 246arch_header () 247{ 248 echo "Copy: $ARCH_INCLUDE/$2" 249 mkdir -p `dirname $ARCH_INCLUDE/$2` 250 install $1/$2 $ARCH_INCLUDE/$2 251 # just to be safe 252 chmod a-x $ARCH_INCLUDE/$2 253} 254 255arch_headers () 256{ 257 srcs=`cd $1 && find . -type f` 258 # remove leading ./ 259 srcs=`echo $srcs | sed -e "s%\./%%g"` 260 261 for src in $srcs; do 262 arch_header $1 $src 263 done 264} 265 266# ZLib headers 267common_header $TOP/external/zlib zlib.h 268common_header $TOP/external/zlib zconf.h 269 270# Jni header 271common_header $TOP/libnativehelper/include/nativehelper jni.h 272 273# libthread_db headers, not sure if this is needed for the NDK 274common_headers $BIONIC_ROOT/libthread_db/include 275 276# for libm, just copy math.h and fenv.h 277common_header $BIONIC_ROOT/libm/include math.h 278if [ "$ARCH" = "x86" ]; then 279 arch_header $BIONIC_ROOT/libm/include i387/fenv.h 280else 281 arch_header $BIONIC_ROOT/libm/include $ARCH/fenv.h 282fi 283 284# our tiny C++ standard library 285common_headers $BIONIC_ROOT/libstdc++/include 286 287# C library kernel headers 288common_headers $LIBC_ROOT/kernel/common 289arch_headers $LIBC_ROOT/kernel/arch-$ARCH 290 291# C library headers 292common_headers $LIBC_ROOT/include 293arch_headers $LIBC_ROOT/arch-$ARCH/include 294 295# Do we need to package the result 296if [ $OPTION_PACKAGE = yes ] ; then 297 DATE=`date +%Y%m%d` 298 PKGFILE=/tmp/ndk-$USER/android-ndk-sysroot-$DATE.tar.bz2 299 tar cjf $PKGFILE build/platforms/$PLATFORM/arch-$ARCH 300 echo "Packaged in $PKGFILE" 301fi 302