1 #!/bin/bash 2 # 3 # setup_toolchain.sh: Sets toolchain environment variables used by other scripts. 4 5 # Fail-fast if anything in the script fails. 6 set -e 7 8 # check that the preconditions for this script are met 9 if [ $(type -t verbose) != 'function' ]; then 10 echo "ERROR: The verbose function is expected to be defined" 11 return 1 12 fi 13 14 if [ $(type -t exportVar) != 'function' ]; then 15 echo "ERROR: The exportVar function is expected to be defined" 16 return 1 17 fi 18 19 if [ $(type -t absPath) != 'function' ]; then 20 echo "ERROR: The absPath function is expected to be defined" 21 return 1 22 fi 23 24 if [ -z "$SCRIPT_DIR" ]; then 25 echo "ERROR: The SCRIPT_DIR variable is expected to be defined" 26 return 1 27 fi 28 29 function default_toolchain() { 30 NDK_REV=${NDK_REV-10exp} 31 ANDROID_ARCH=${ANDROID_ARCH-arm} 32 33 if [[ $ANDROID_ARCH == *64* ]]; then 34 API_LEVEL=L # Experimental Android L-Release system images 35 else 36 API_LEVEL=14 # Official Android 4.0 system images 37 fi 38 39 TOOLCHAIN_DIR=${SCRIPT_DIR}/../toolchains 40 if [ $(uname) == "Darwin" ]; then 41 verbose "Using Mac toolchain." 42 TOOLCHAIN_TYPE=ndk-r$NDK_REV-$ANDROID_ARCH-darwin_v$API_LEVEL 43 else 44 verbose "Using Linux toolchain." 45 TOOLCHAIN_TYPE=ndk-r$NDK_REV-$ANDROID_ARCH-linux_v$API_LEVEL 46 fi 47 exportVar ANDROID_TOOLCHAIN "${TOOLCHAIN_DIR}/${TOOLCHAIN_TYPE}/bin" 48 49 # if the toolchain doesn't exist on your machine then we need to fetch it 50 if [ ! -d "$ANDROID_TOOLCHAIN" ]; then 51 mkdir -p $TOOLCHAIN_DIR 52 # enter the toolchain directory then download, unpack, and remove the tarball 53 pushd $TOOLCHAIN_DIR 54 TARBALL=ndk-r$NDK_REV-v$API_LEVEL.tgz 55 56 ${SCRIPT_DIR}/download_toolchains.py \ 57 http://chromium-skia-gm.commondatastorage.googleapis.com/android-toolchains/$TARBALL \ 58 $TOOLCHAIN_DIR/$TARBALL 59 tar -xzf $TARBALL $TOOLCHAIN_TYPE 60 rm $TARBALL 61 popd 62 fi 63 64 verbose "Targeting NDK API $API_LEVEL for use on Android 4.0 (NDK Revision $NDK_REV) and above" 65 } 66 67 #check to see if the toolchain has been defined and if not setup the default toolchain 68 if [ -z "$ANDROID_TOOLCHAIN" ]; then 69 default_toolchain 70 if [ ! -d "$ANDROID_TOOLCHAIN" ]; then 71 echo "ERROR: unable to download/setup the required toolchain (${ANDROID_TOOLCHAIN})" 72 return 1; 73 fi 74 fi 75 76 GCC=$(command ls $ANDROID_TOOLCHAIN/*-gcc | head -n1) 77 if [ -z "$GCC" ]; then 78 echo "ERROR: Could not find Android cross-compiler in: $ANDROID_TOOLCHAIN" 79 return 1 80 fi 81 82 # Remove the '-gcc' at the end to get the full toolchain prefix 83 ANDROID_TOOLCHAIN_PREFIX=${GCC%%-gcc} 84 85 CCACHE=${ANDROID_MAKE_CCACHE-$(which ccache || true)} 86 87 exportVar CC "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-gcc" 88 exportVar CXX "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-g++" 89 exportVar LINK "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-gcc" 90 91 exportVar AR "$ANDROID_TOOLCHAIN_PREFIX-ar" 92 exportVar RANLIB "$ANDROID_TOOLCHAIN_PREFIX-ranlib" 93 exportVar OBJCOPY "$ANDROID_TOOLCHAIN_PREFIX-objcopy" 94 exportVar STRIP "$ANDROID_TOOLCHAIN_PREFIX-strip" 95 96 # Create symlinks for nm & readelf and add them to the path so that the ninja 97 # build uses them instead of attempting to use the one on the system. 98 # This is required to build using ninja on a Mac. 99 ln -sf $ANDROID_TOOLCHAIN_PREFIX-nm $ANDROID_TOOLCHAIN/nm 100 ln -sf $ANDROID_TOOLCHAIN_PREFIX-readelf $ANDROID_TOOLCHAIN/readelf 101 ln -sf $ANDROID_TOOLCHAIN_PREFIX-as $ANDROID_TOOLCHAIN/as 102 exportVar PATH $ANDROID_TOOLCHAIN:$PATH 103
