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#! /bin/bash | |
set -e | |
trap 'previous_command=$this_command; this_command=$BASH_COMMAND' DEBUG | |
trap 'echo FAILED COMMAND: $previous_command' EXIT | |
#------------------------------------------------------------------------------------------- | |
# This script will download packages for, configure, build and install a GCC cross-compiler. | |
# Customize the variables (INSTALL_PATH, TARGET, etc.) to your liking before running. | |
# If you get an error and need to resume the script from some point in the middle, | |
# just delete/comment the preceding lines before running it again. | |
# | |
# See: http://preshing.com/20141119/how-to-build-a-gcc-cross-compiler | |
#------------------------------------------------------------------------------------------- | |
INSTALL_PATH=/opt/cross | |
TARGET=aarch64-linux | |
USE_NEWLIB=0 | |
LINUX_ARCH=arm64 | |
CONFIGURATION_OPTIONS="--disable-multilib" # --disable-threads --disable-shared | |
PARALLEL_MAKE=-j4 | |
BINUTILS_VERSION=binutils-2.24 | |
GCC_VERSION=gcc-4.9.2 | |
LINUX_KERNEL_VERSION=linux-3.17.2 | |
GLIBC_VERSION=glibc-2.20 | |
MPFR_VERSION=mpfr-3.1.2 | |
GMP_VERSION=gmp-6.0.0a | |
MPC_VERSION=mpc-1.0.2 | |
ISL_VERSION=isl-0.12.2 | |
CLOOG_VERSION=cloog-0.18.1 | |
export PATH=$INSTALL_PATH/bin:$PATH | |
# Download packages | |
export http_proxy=$HTTP_PROXY https_proxy=$HTTP_PROXY ftp_proxy=$HTTP_PROXY | |
wget -nc https://ftp.gnu.org/gnu/binutils/$BINUTILS_VERSION.tar.gz | |
wget -nc https://ftp.gnu.org/gnu/gcc/$GCC_VERSION/$GCC_VERSION.tar.gz | |
if [ $USE_NEWLIB -ne 0 ]; then | |
wget -nc -O newlib-master.zip https://github.com/bminor/newlib/archive/master.zip || true | |
unzip -qo newlib-master.zip | |
else | |
wget -nc https://www.kernel.org/pub/linux/kernel/v3.x/$LINUX_KERNEL_VERSION.tar.xz | |
wget -nc https://ftp.gnu.org/gnu/glibc/$GLIBC_VERSION.tar.xz | |
fi | |
wget -nc https://ftp.gnu.org/gnu/mpfr/$MPFR_VERSION.tar.xz | |
wget -nc https://ftp.gnu.org/gnu/gmp/$GMP_VERSION.tar.xz | |
wget -nc https://ftp.gnu.org/gnu/mpc/$MPC_VERSION.tar.gz | |
wget -nc ftp://gcc.gnu.org/pub/gcc/infrastructure/$ISL_VERSION.tar.bz2 | |
wget -nc ftp://gcc.gnu.org/pub/gcc/infrastructure/$CLOOG_VERSION.tar.gz | |
# Extract everything | |
for f in *.tar*; do tar xfk $f; done | |
# Make symbolic links | |
cd $GCC_VERSION | |
ln -sf `ls -1d ../mpfr-*/` mpfr | |
ln -sf `ls -1d ../gmp-*/` gmp | |
ln -sf `ls -1d ../mpc-*/` mpc | |
ln -sf `ls -1d ../isl-*/` isl | |
ln -sf `ls -1d ../cloog-*/` cloog | |
cd .. | |
# Step 1. Binutils | |
mkdir -p build-binutils | |
cd build-binutils | |
../$BINUTILS_VERSION/configure --prefix=$INSTALL_PATH --target=$TARGET $CONFIGURATION_OPTIONS | |
make $PARALLEL_MAKE | |
make install | |
cd .. | |
# Step 2. Linux Kernel Headers | |
if [ $USE_NEWLIB -eq 0 ]; then | |
cd $LINUX_KERNEL_VERSION | |
make ARCH=$LINUX_ARCH INSTALL_HDR_PATH=$INSTALL_PATH/$TARGET headers_install | |
cd .. | |
fi | |
# Step 3. C/C++ Compilers | |
mkdir -p build-gcc | |
cd build-gcc | |
if [ $USE_NEWLIB -ne 0 ]; then | |
NEWLIB_OPTION=--with-newlib | |
fi | |
../$GCC_VERSION/configure --prefix=$INSTALL_PATH --target=$TARGET --enable-languages=c,c++ $CONFIGURATION_OPTIONS $NEWLIB_OPTION | |
make $PARALLEL_MAKE all-gcc | |
make install-gcc | |
cd .. | |
if [ $USE_NEWLIB -ne 0 ]; then | |
# Steps 4-6: Newlib | |
mkdir -p build-newlib | |
cd build-newlib | |
../newlib-master/configure --prefix=$INSTALL_PATH --target=$TARGET $CONFIGURATION_OPTIONS | |
make $PARALLEL_MAKE | |
make install | |
cd .. | |
else | |
# Step 4. Standard C Library Headers and Startup Files | |
mkdir -p build-glibc | |
cd build-glibc | |
../$GLIBC_VERSION/configure --prefix=$INSTALL_PATH/$TARGET --build=$MACHTYPE --host=$TARGET --target=$TARGET --with-headers=$INSTALL_PATH/$TARGET/include $CONFIGURATION_OPTIONS libc_cv_forced_unwind=yes | |
make install-bootstrap-headers=yes install-headers | |
make $PARALLEL_MAKE csu/subdir_lib | |
install csu/crt1.o csu/crti.o csu/crtn.o $INSTALL_PATH/$TARGET/lib | |
$TARGET-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o $INSTALL_PATH/$TARGET/lib/libc.so | |
touch $INSTALL_PATH/$TARGET/include/gnu/stubs.h | |
cd .. | |
# Step 5. Compiler Support Library | |
cd build-gcc | |
make $PARALLEL_MAKE all-target-libgcc | |
make install-target-libgcc | |
cd .. | |
# Step 6. Standard C Library & the rest of Glibc | |
cd build-glibc | |
make $PARALLEL_MAKE | |
make install | |
cd .. | |
fi | |
# Step 7. Standard C++ Library & the rest of GCC | |
cd build-gcc | |
make $PARALLEL_MAKE all | |
make install | |
cd .. | |
trap - EXIT | |
echo 'Success!' |
Very interesting script. On this basis, i create conan package https://github.com/BetterCallBene/conan-cgcc.
Is it possible to build multi lib gcc i.e. with aarch64 and arm?
This doesn't work for me trying to build gcc-4.8.5. It fails on configuring glibc (2.12.2) as it is using the newly built cross-compiled-gcc which cannot find stdio.h. I can resolve this by not exporting the PATH to the new binaries but then the csu binaries built will be for the host architecture. Not really sure how to resolve it.
Anyone trying to use something other than Linux as the build/host platform may be helped by looking at my fork of this script.
My Fork
I used MSys2 64 bit (a Cygwin fork) under Win7 64 bit; I yet to test the cross compiler produced; did it as a learning exercise.
I have no need to use it; but, likely will in a few months.
Edit2: Once, I deleted the installed files my version of the script stopped building with gcc/glibc errors.
Tim S.
Amazing script. I was able to create a cross compiler for ARM, and then create a Kernel and BusyBox to boot up in QEMU. I have converted the script to a makefile under kanj/MAKE_CROSS_LINUX for reference.