Ubuntu Cross Compile 환경 구성 (gcc)

gcc Cross Compile

이 방법을 이용해 MIPS 및 ARM (none-gnueabi), PowerPC 크로스 컴파일 환경 구성에 성공하였다.

ref: http://preshing.com/20141119/how-to-build-a-gcc-cross-compiler/
ref: https://gist.github.com/preshing/41d5c7248dea16238b60
ref: https://www.linux-mips.org/wiki/Toolchains
ref: https://gist.github.com/shurizzle/3728481
ref: http://www.ifp.illinois.edu/~nakazato/tips/xgcc.html

커널 헤더 참조를 위해 다운 받는 리눅스 커널 버전만 3.x대나 4.x로 올려주고, 플랫폼 별로 잘 컴파일 하면 된다.
필요없다면 2.6.32(gcc 4.9.2의 최소 요구 버전)로 유지.

#!/bin/sh

sudo apt-get install g++ make gawk

wget http://ftpmirror.gnu.org/binutils/binutils-2.24.tar.gz
wget http://ftpmirror.gnu.org/gcc/gcc-4.9.2/gcc-4.9.2.tar.gz
wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.17.2.tar.xz
wget http://ftpmirror.gnu.org/glibc/glibc-2.20.tar.xz
wget http://ftpmirror.gnu.org/mpfr/mpfr-3.1.2.tar.xz
wget http://ftpmirror.gnu.org/gmp/gmp-6.0.0a.tar.xz
wget http://ftpmirror.gnu.org/mpc/mpc-1.0.2.tar.gz
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/isl-0.12.2.tar.bz2
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/cloog-0.18.1.tar.gz

for f in *.tar*; do tar xf $f; done

cd gcc-4.9.2
ln -s ../mpfr-3.1.2 mpfr
ln -s ../gmp-6.0.0 gmp
ln -s ../mpc-1.0.2 mpc
ln -s ../isl-0.12.2 isl
ln -s ../cloog-0.18.1 cloog
cd ..

sudo mkdir -p /opt/cross
sudo chown $(whoami) /opt/cross

export PATH=/opt/cross/bin:$PATH

PLATFORMS=( "arm-none-linux-gnueabi" "mips-linux" )
ARCHS=( "arm" "mips" )

for (( i = 0 ; i < ${#PLATFORMS[@]} ; i++ )) ; do
	PLATFORM=${PLATFORMS[$i]}
	ARCH=${ARCHS[$i]}

	mkdir -p build-binutils
	cd build-binutils
	../binutils-2.24/configure --prefix=/opt/cross --target=${PLATFORM} --disable-multilib --disable-werror
	make && make install && cd ..

	cd linux-3.17.2
	make ARCH=${ARCH} INSTALL_HDR_PATH=/opt/cross/${PLATFORM} headers_install
	cd ..

	mkdir -p build-gcc
	cd build-gcc
	../gcc-4.9.2/configure --prefix=/opt/cross --target=${PLATFORM} --enable-languages=c,c++ --disable-multilib
	make all-gcc && make install-gcc && cd ..

	mkdir -p build-glibc
	cd build-glibc
	../glibc-2.20/configure --prefix=/opt/cross/${PLATFORM} --build=$MACHTYPE --host=${PLATFORM} --target=${PLATFORM} --with-headers=/opt/cross/${PLATFORM}/include --disable-multilib libc_cv_forced_unwind=yes
	make install-bootstrap-headers=yes install-headers
	make csu/subdir_lib
	install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/${PLATFORM}/lib
	${PLATFORM}-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o /opt/cross/${PLATFORM}/lib/libc.so
	touch /opt/cross/${PLATFORM}/include/gnu/stubs.h
	cd ..

	cd build-gcc
	make all-target-libgcc && make install-target-libgcc && cd ..

	cd build-glibc
	make && make install && cd ..

	cd build-gcc
	make && make install && cd ..

	rm -rf build-gcc build-binutils build-glibc
done

다음은 PowerPC를 위한 방법이다.

sudo apt-get install g++ make gawk

wget http://ftpmirror.gnu.org/binutils/binutils-2.24.tar.gz
wget http://ftpmirror.gnu.org/gcc/gcc-4.9.2/gcc-4.9.2.tar.gz
wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.17.2.tar.xz
wget http://ftpmirror.gnu.org/glibc/glibc-2.20.tar.xz
wget http://ftpmirror.gnu.org/mpfr/mpfr-3.1.2.tar.xz
wget http://ftpmirror.gnu.org/gmp/gmp-6.0.0a.tar.xz
wget http://ftpmirror.gnu.org/mpc/mpc-1.0.2.tar.gz
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/isl-0.12.2.tar.bz2
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/cloog-0.18.1.tar.gz

for f in *.tar*; do tar xf $f; done

cd gcc-4.9.2
ln -s ../mpfr-3.1.2 mpfr
ln -s ../gmp-6.0.0 gmp
ln -s ../mpc-1.0.2 mpc
ln -s ../isl-0.12.2 isl
ln -s ../cloog-0.18.1 cloog
cd ..

sudo mkdir -p /opt/cross
sudo chown $(whoami) /opt/cross

export PATH=/opt/cross/bin:$PATH

mkdir -p build-binutils
cd build-binutils
../binutils-2.24/configure --prefix=/opt/cross --target=powerpc-linux --disable-multilib --disable-werror
make && make install && cd ..

cd linux-3.17.2
make ARCH=powerpc INSTALL_HDR_PATH=/opt/cross/powerpc-linux/usr headers_install
pushd /opt/cross/powerpc-linux
ln -s usr/include include
popd
cd ..

mkdir -p build-gcc
cd build-gcc
../gcc-4.9.2/configure --prefix=/opt/cross --target=powerpc-linux --enable-languages=c,c++ --disable-multilib --disable-libmudflap --disable-libssp --disable-libgomp --disable-libquadmath --disable-shared --disable-threads --disable-decimal-float --disable-libffi --without-ppl
make all-gcc && make install-gcc && cd ..

mkdir -p build-glibc
cd build-glibc
../glibc-2.20/configure --prefix=/opt/cross/powerpc-linux --build=$MACHTYPE --host=powerpc-linux --target=powerpc-linux --with-headers=/opt/cross/powerpc-linux/include --disable-profile --disable-multilib libc_cv_forced_unwind=yes libc_cv_ctors_header=yes libc_cv_c_cleanup=yes libc_cv_ssp=no gcc_cv_libc_provides_ssp=no --enable-add-ons
make install-bootstrap-headers=yes install-headers
make csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o /opt/cross/powerpc-linux/lib
powerpc-linux-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o /opt/cross/powerpc-linux/lib/libc.so
touch /opt/cross/powerpc-linux/include/gnu/stubs.h
cd ..

cd build-gcc
make all-target-libgcc && make install-target-libgcc && cd ..

cd build-glibc
make && make install && cd ..

cd build-gcc
make && make install && cd ..