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 API_LEVEL=14 31 NDK_REV=${NDK_REV-8e} 32 ANDROID_ARCH=${ANDROID_ARCH-arm} 33 34 TOOLCHAIN_DIR=${SCRIPT_DIR}/../toolchains 35 if [ $(uname) == "Darwin" ]; then 36 verbose "Using Mac toolchain." 37 TOOLCHAIN_TYPE=ndk-r$NDK_REV-$ANDROID_ARCH-mac_v$API_LEVEL 38 else 39 verbose "Using Linux toolchain." 40 TOOLCHAIN_TYPE=ndk-r$NDK_REV-$ANDROID_ARCH-linux_v$API_LEVEL 41 fi 42 exportVar ANDROID_TOOLCHAIN "${TOOLCHAIN_DIR}/${TOOLCHAIN_TYPE}/bin" 43 44 # if the toolchain doesn't exist on your machine then we need to fetch it 45 if [ ! -d "$ANDROID_TOOLCHAIN" ]; then 46 mkdir -p $TOOLCHAIN_DIR 47 # enter the toolchain directory then download, unpack, and remove the tarball 48 pushd $TOOLCHAIN_DIR 49 TARBALL=ndk-r$NDK_REV-v$API_LEVEL.tgz 50 51 ${SCRIPT_DIR}/download_toolchains.py \ 52 http://chromium-skia-gm.commondatastorage.googleapis.com/android-toolchains/$TARBALL \ 53 $TOOLCHAIN_DIR/$TARBALL 54 tar -xzf $TARBALL $TOOLCHAIN_TYPE 55 rm $TARBALL 56 popd 57 fi 58 59 verbose "Targeting NDK API $API_LEVEL for use on Android 4.0 (NDK Revision $NDK_REV) and above" 60 } 61 62 #check to see if the toolchain has been defined and if not setup the default toolchain 63 if [ -z "$ANDROID_TOOLCHAIN" ]; then 64 default_toolchain 65 if [ ! -d "$ANDROID_TOOLCHAIN" ]; then 66 echo "ERROR: unable to download/setup the required toolchain (${ANDROID_TOOLCHAIN})" 67 return 1; 68 fi 69 fi 70 71 GCC=$(command ls $ANDROID_TOOLCHAIN/*-gcc | head -n1) 72 if [ -z "$GCC" ]; then 73 echo "ERROR: Could not find Android cross-compiler in: $ANDROID_TOOLCHAIN" 74 return 1 75 fi 76 77 # Remove the '-gcc' at the end to get the full toolchain prefix 78 ANDROID_TOOLCHAIN_PREFIX=${GCC%%-gcc} 79 80 CCACHE=${ANDROID_MAKE_CCACHE-$(which ccache || true)} 81 82 exportVar CC "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-gcc" 83 exportVar CXX "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-g++" 84 exportVar LINK "$CCACHE $ANDROID_TOOLCHAIN_PREFIX-gcc" 85 86 exportVar AR "$ANDROID_TOOLCHAIN_PREFIX-ar" 87 exportVar RANLIB "$ANDROID_TOOLCHAIN_PREFIX-ranlib" 88 exportVar OBJCOPY "$ANDROID_TOOLCHAIN_PREFIX-objcopy" 89 exportVar STRIP "$ANDROID_TOOLCHAIN_PREFIX-strip" 90 91 # Create symlinks for nm & readelf and add them to the path so that the ninja 92 # build uses them instead of attempting to use the one on the system. 93 # This is required to build using ninja on a Mac. 94 ln -sf $ANDROID_TOOLCHAIN_PREFIX-nm $ANDROID_TOOLCHAIN/nm 95 ln -sf $ANDROID_TOOLCHAIN_PREFIX-readelf $ANDROID_TOOLCHAIN/readelf 96 exportVar PATH $ANDROID_TOOLCHAIN:$PATH 97
