#!/bin/sh # # Script to be able to build a full cross toolchain for Linux/x86. # This has been made thanks to various sources recollected from wikipedia # and other cross compiling related pages. # Setup some defaults : ${GNU_URL_BASE:=http://ftp.gnu.org/gnu} : ${KERNEL_URL_BASE:=http://www.kernel.org/pub/linux/kernel/v2.6} : ${GCC_VER:=4.3.2} : ${BINUTILS_VER:=2.19} : ${GLIBC_VER:=2.7} : ${KERNEL_VER:=2.6.27.3} : ${CROSSDIR:=$HOME/mktoolchain} : ${BUILDDIR:=$CROSSDIR/build} : ${SOURCEDISTDIR:=$BUILDDIR/sources} : ${FETCH_CMD:=wget} usage() { echo "usage: $0 [-b dir] [-c dir] [-s dir] " echo echo "Optional flags:" echo " -b Directory to be used for temporary building." echo " -c Directory to be used for final cross tools." echo " -s Directory where the sources are available." exit 1 } check_path() { local orig="$1" case "$orig" in /) ;; /*) orig="${orig%/}" ;; *) orig="$PWD/${orig%/}" ;; esac SANITIZED_DESTDIR=$orig } fetch_sources() { local pkg= cd $SOURCEDISTDIR || exit 1 pkg=linux if [ ! -f $pkg-$KERNEL_VER.tar.bz2 ]; then echo "Fetching $pkg kernel-$KERNEL_VER sources..." $FETCH_CMD $KERNEL_URL_BASE/$pkg-$KERNEL_VER.tar.bz2 || exit 1 fi pkg=gcc if [ ! -f $pkg-$GCC_VER.tar.bz2 ]; then echo "Fetching $pkg-$GCC_VER..." $FETCH_CMD $GNU_URL_BASE/$pkg/$pkg-$GCC_VER/$pkg-$GCC_VER.tar.bz2 || exit 1 fi pkg=binutils if [ ! -f $pkg-$BINUTILS_VER.tar.bz2 ]; then echo "Fetching $pkg-$BINUTILS_VER..." $FETCH_CMD $GNU_URL_BASE/$pkg/$pkg-$BINUTILS_VER.tar.bz2 \ || exit 1 fi pkg=glibc if [ ! -f $pkg-$GLIBC_VER.tar.bz2 ]; then echo "Fetching $pkg-$GLIBC_VER..." $FETCH_CMD $GNU_URL_BASE/$pkg/$pkg-$GLIBC_VER.tar.bz2 || exit 1 fi } kernel_headers() { local pkg="linux-$KERNEL_VER" cd $BUILDDIR || exit 1 tar xfj $SOURCEDISTDIR/$pkg.tar.bz2 -C $BUILDDIR || exit 1 cd $pkg || exit 1 make ARCH=$KERNEL_ARCH headers_check || exit 1 make ARCH=$KERNEL_ARCH headers_install \ INSTALL_HDR_PATH=$SYSROOT/usr || exit 1 cd $SYSROOT/usr/include && ln -s asm asm-$KERNEL_ARCH cd $BUILDDIR && rm -rf $pkg || exit 1 touch -f $BUILDDIR/.kernel_headers_done } binutils() { local pkg="binutils-$BINUTILS_VER" cd $BUILDDIR || exit 1 if [ ! -d $pkg ]; then tar xfj $SOURCEDISTDIR/$pkg.tar.bz2 -C $BUILDDIR || exit 1 fi cd $pkg || exit 1 [ ! -d build ] && mkdir build || exit 1 cd build || exit 1 ../configure --prefix=$CROSSDIR \ --target=$CROSS_TARGET \ --with-sysroot=$SYSROOT \ --with-build-sysroot=$SYSROOT \ --disable-nls --enable-shared \ --disable-multilib || exit 1 make configure-host && make && make install || exit 1 # Remove unneeded stuff for f in info man share; do [ -d $CROSSDIR/$f ] && rm -rf $CROSSDIR/$f done cd $BUILDDIR && rm -rf $pkg || exit 1 touch -f $BUILDDIR/.binutils_done } glibc_patches() { # Apply some required patches for i[56]86-pc-linux-gnu and # common targets. $FETCH_CMD http://www.freesa.org/toolchain/patches/glibc-2.7-fixup_for_gcc43-1.patch $FETCH_CMD http://www.freesa.org/toolchain/patches/glibc-2.7-i586_chk-1.patch $FETCH_CMD http://www.freesa.org/toolchain/patches/glibc-2.7-libgcc_eh-1.patch $FETCH_CMD http://svn.exactcode.de/t2/trunk/package/base/glibc/x86-fnstsw.patch patch -Np1 -i glibc-2.7-fixup_for_gcc43-1.patch || exit 1 patch -Np1 -i glibc-2.7-i586_chk-1.patch || exit 1 patch -Np1 -i glibc-2.7-libgcc_eh-1.patch || exit 1 patch -Np1 -i x86-fnstsw.patch || exit 1 touch -f $BUILDDIR/glibc-$GLIBC_VER/.patches_done } gcc() { local stage="$1" local pkg="gcc-$GCC_VER" local configure_args= local make_args= local make_install_args= local touch_f= cd $BUILDDIR || exit 1 if [ ! -d $pkg ]; then tar xfj $SOURCEDISTDIR/$pkg.tar.bz2 -C $BUILDDIR || exit 1 fi [ ! -d $pkg/build ] && mkdir $pkg/build cd $pkg/build || exit 1 case $stage in full) # gcc with support for C and C++. touch_f=".gcc_full_done" make_args="AS_FOR_TARGET=$CROSS_TARGET-as" make_args="$make_args LD_FOR_TARGET=$CROSS_TARGET-ld" make_install_args="install" configure_args="--enable-threads=posix" configure_args="$configure_args --enable-languages=c,c++" configure_args="$configure_args --enable-__cxa_atexit" configure_args="$configure_args --enable-tls" ;; libgcc) # Enough to be able to build full glibc. make all-target-libgcc && make install-target-libgcc || exit 1 rm -rf $SYSROOT/lib/crt* || exit 1 touch -f $BUILDDIR/.gcc_libgcc_done cd $BUILDDIR/$pkg && rm -rf build return 0 ;; bootstrap) # gcc bootstrap touch_f=".gcc_bootstrap_done" make_args="all-gcc" make_install_args="install-gcc" configure_args="--disable-shared --disable-libmudflap" configure_args="$configure_args --disable-threads" configure_args="$configure_args --disable-libssp" configure_args="$configure_args --enable-languages=c" ;; *) ;; esac ../configure --prefix=$CROSSDIR \ --build=$CROSS_HOST --host=$CROSS_HOST \ --target=$CROSS_TARGET \ --with-sysroot=$SYSROOT \ --with-build-sysroot=$SYSROOT \ --disable-multilib \ ${configure_args} || exit 1 env LDFLAGS_FOR_TARGET="--sysroot=$SYSROOT" \ CPPFLAGS_FOR_TARGET="--sysroot=$SYSROOT" \ make ${make_args} && make ${make_install_args} || exit 1 # Remove unneeded stuff for f in info share man; do [ -d $CROSSDIR/$f ] && rm -rf $CROSSDIR/$f done # Do not remove builddir if bootstrap, we want all objs for # the libgcc pass. if [ "$stage" != "bootstrap" ]; then cd $BUILDDIR/$pkg && rm -rf build || exit 1 fi touch -f $BUILDDIR/$touch_f } glibc() { local stage="$1" local pkg="glibc-$GLIBC_VER" local touch_f= local cross_binutils="$CROSSDIR/$CROSS_TARGET/bin" local configure_args= local CC= local BUILD_CC= local RANLIB= local AR= cd $BUILDDIR || exit 1 if [ ! -d $pkg ]; then tar xfj $SOURCEDISTDIR/$pkg.tar.bz2 -C $BUILDDIR || exit 1 fi cd $pkg || exit 1 [ ! -f .patches_done ] && glibc_patches [ ! -d build ] && mkdir build cd build || exit 1 # NPTL support. echo "libc_cv_forced_unwind=yes" > config.cache echo "libc_cv_c_cleanup=yes" >> config.cache if [ "$KERNEL_ARCH" = "i386" ]; then echo "CFLAGS+=-march=${CROSS_TARGET%%-*} -mtune=generic" \ > configparms fi case $stage in startup|full) BUILD_CC=$CROSS_TARGET-gcc CC=$CROSS_TARGET-gcc AR=$CROSS_TARGET-ar RANLIB=$CROSS_TARGET-ranlib configure_args="${configure_args} --with-binutils=$CROSSDIR/bin" configure_args="${configure_args} --cache-file=config.cache" ;; headers) CC=gcc configure_args="${configure_args} --with-binutils=$cross_binutils" configure_args="${configure_args} --disable-sanity-checks" ;; *) ;; esac CC=${CC} BUILD_CC=${BUILD_CC} AR=${AR} RANLIB=${RANLIB} \ ../configure --prefix=/usr \ --host=$CROSS_TARGET --build=$CROSS_HOST \ --enable-kernel=2.6.25 --with-tls \ --with-__thread --without-selinux \ --without-gd --without-cvs --disable-profile \ --enable-add-ons \ --with-headers=$SYSROOT/usr/include \ ${configure_args} || exit 1 case $stage in startup) touch_f=".glibc_startup_done" make -r -C ../csu objdir=$PWD $PWD/csu/crt1.o || exit 1 make -r -C ../csu objdir=$PWD $PWD/csu/crti.o || exit 1 make -r -C ../csu objdir=$PWD $PWD/csu/crtn.o || exit 1 mkdir -p $SYSROOT/lib || exit 1 cp -f csu/crt1.o csu/crti.o csu/crtn.o $SYSROOT/lib || exit 1 ;; headers) touch_f=".glibc_headers_done" make cross-compiling=yes \ install_root=$SYSROOT install-headers || exit 1 cp -v bits/stdio_lim.h $SYSROOT/usr/include/bits || exit 1 touch $SYSROOT/usr/include/gnu/stubs.h || exit 1 cp -v ../nptl/sysdeps/pthread/pthread.h \ $SYSROOT/usr/include || exit 1 if [ "$KERNEL_ARCH" = "i386" ]; then local bitsdir="nptl/sysdeps/unix/sysv/linux/i386/bits" cp -v ../$bitsdir/pthreadtypes.h \ $SYSROOT/usr/include/bits || exit 1 fi ;; full) touch_f=".glibc_full_done" make && make install_root=$SYSROOT install || exit 1 ;; esac if [ "$stage" != "headers" ]; then cd $BUILDDIR/$pkg && rm -rf build || exit 1 fi touch -f $BUILDDIR/$touch_f } while getopts "b:c:s:" opt; do case $opt in b) BUILDDIR=$OPTARG check_path $BUILDDIR BUILDDIR=$SANITIZED_DESTDIR ;; c) CROSSDIR=$OPTARG check_path $CROSSDIR CROSSDIR=$SANITIZED_DESTDIR ;; s) SOURCEDISTDIR=$OPTARG check_path $SOURCEDISTDIR SOURCEDISTDIR=$SANITIZED_DESTDIR ;; --) shift; break;; esac done shift $(($OPTIND - 1)) [ $# -ne 1 ] && usage if [ -z "$1" ]; then echo "ERROR: missing target triplet." exit 1 else CROSS_TARGET=$1 case $CROSS_TARGET in i686-pc-linux-gnu) KERNEL_ARCH=i386 CROSS_HOST=x86_64-unknown-linux-gnu ;; x86-64-unknown-linux-gnu) KERNEL_ARCH=x86_64 CROSS_HOST=i686-pc-linux-gnu ;; *) echo "ERROR: unknown target triplet $CROSS_TARGET." exit 1 ;; esac fi CROSSDIR=$CROSSDIR/$CROSS_TARGET SYSROOT=$CROSSDIR/sysroot [ ! -d $SYSROOT/usr ] && mkdir -p $SYSROOT/usr [ ! -d $BUILDDIR ] && mkdir -p $BUILDDIR [ ! -d $SOURCEDISTDIR ] && mkdir -p $SOURCEDISTDIR unset CFLAGS CXXFLAGS CC CXX AR AS RANLIB LD_STRIP unset LD_LIBRARY_PATH LD_RUN_PATH export PATH="$CROSSDIR/bin:/bin:/usr/bin" fetch_sources if [ ! -f $BUILDDIR/.kernel_headers_done ]; then echo "Installing kernel headers..." kernel_headers fi if [ ! -f $BUILDDIR/.binutils_done ]; then echo "Installing binutils..." binutils fi if [ ! -f $BUILDDIR/.glibc_headers_done ]; then echo "Installing glibc headers..." glibc headers fi if [ ! -f $BUILDDIR/.gcc_bootstrap_done ]; then echo "Installing gcc (bootstrap)..." gcc bootstrap fi if [ ! -f $BUILDDIR/.glibc_startup_done ]; then echo "Installing glibc (startup)..." glibc startup fi if [ ! -f $BUILDDIR/.gcc_libgcc_done ]; then echo "Installing gcc (libgcc)..." gcc libgcc fi if [ ! -f $BUILDDIR/.glibc_full_done ]; then echo "Installing glibc (full)..." glibc full fi if [ ! -f $BUILDDIR/.gcc_full_done ]; then echo "Installing gcc (full)..." gcc full fi [ -d $BUILDDIR ] && rm -rf $BUILDDIR echo "Finished. Toolchain for $CROSS_TARGET at $CROSSDIR." exit 0