build

#!/bin/bash

# Bomb out on any errors
set -e 

# Setup the environment
export HOME=/home/admin
export PATH=$PATH:$HOME/droid/bin
export ANDROID_NDK=~/droid/android-ndk
export TARGET=/target

# Download the latest version of bash
if [ ! -f ~/bash-4.3.tar.gz ]; then
    wget -O ~/bash-4.3.tar.gz http://ftp.gnu.org/gnu/bash/bash-4.3.tar.gz
fi

for ARCH_NAME in mips arm x86; do

    for BIN_TYPE in nopie pie; do

        # Create the output directory
        mkdir -p $TARGET/$ARCH_NAME/$BIN_TYPE;

        # Start each build with a fresh source copy
        cd ~
        rm -rf ~/bash-4.3
        tar xvzf bash-4.3.tar.gz
        cd bash-4.3

        # Apply the Android patch
        patch -p0 <~/bash-android.patch

        # Apply all official patches
        for PATCH in $HOME/official_patches/bash43-*; do
            patch -p0 < $PATCH
        done; 

        case "$ARCH_NAME" in
            
            x86)
                echo "Compiling for x86"
                HOST=i686-linux-android
                TOOLCHAIN=${ANDROID_NDK}/default-x86-toolchain
                COMPILER=${TOOLCHAIN}/bin/i686-linux-android-gcc
                STRIP=${TOOLCHAIN}/bin/i686-linux-android-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-x86
                ;;
            arm)
                echo "Compiling for ARM"
                HOST=arm-linux
                TOOLCHAIN=${ANDROID_NDK}/default-arm-toolchain
                COMPILER=${TOOLCHAIN}/bin/arm-linux-androideabi-gcc
                STRIP=${TOOLCHAIN}/bin/arm-linux-androideabi-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-arm
                ;;
            mips)
                echo "Compiling for MIPS"
                HOST=mipsel-linux-android
                TOOLCHAIN=${ANDROID_NDK}/default-mips-toolchain
                COMPILER=${TOOLCHAIN}/bin/mipsel-linux-android-gcc
                STRIP=${TOOLCHAIN}/bin/mipsel-linux-android-strip
                SYSROOT=${ANDROID_NDK}/platforms/android-19/arch-mips
                ;;

        esac

        export CC="$COMPILER --sysroot=$SYSROOT"
        
        if [ $BIN_TYPE == "pie" ]; then
            export CFLAGS="-g -O2 -pie -fPIE"
            # Use the default platform target for pie binaries 
            unset GOOGLE_PLATFORM
        else 
            export CFLAGS="-g -O2"
            export GOOGLE_PLATFORM=9
        fi

        ./configure --host=$HOST --without-bash-malloc --disable-rpath --disable-nls
        echo "#undef HAVE_GETPWENT" >> config.h

        make
 
        $STRIP bash
        cp bash $TARGET/$ARCH_NAME/$BIN_TYPE/bash

    done

done