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@GregorR @rofl0r @skristiansson @dottedmag @strugee
executable file 156 lines (135 sloc) 4.51 KB
#!/bin/sh
# Build a cross-compiler
#
# Copyright (C) 2012 Gregor Richards
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
if [ ! "$MUSL_CC_BASE" ]
then
MUSL_CC_BASE=`dirname "$0"`
fi
# Fail on any command failing, show commands:
set -ex
BINUTILS_CONFFLAGS=
GCC_BOOTSTRAP_CONFFLAGS=
MUSL_CONFFLAGS=
GCC_CONFFLAGS=
WITH_SYSROOT=no
. "$MUSL_CC_BASE"/defs.sh
# Switch to the CC prefix for all of this
PREFIX="$CC_PREFIX"
# make the sysroot usr directory
if [ ! -e "$PREFIX"/"$TRIPLE"/usr ]
then
mkdir -p "$PREFIX"/"$TRIPLE"
ln -sf . "$PREFIX"/"$TRIPLE"/usr
fi
if [ "$WITH_SYSROOT" = "yes" ]
then
SYSROOT_FLAGS="--with-sysroot=""$PREFIX"/"$TRIPLE"
fi
# binutils
fetchextract "$BINUTILS_URL"
BINUTILS_DIR=$(stripfileext $(basename $BINUTILS_URL))
if printf "%s" "$BINUTILS_URL" | grep "2\.[2-9][0-9]" >/dev/null 2>&1 ; then
BINUTILS_CONFFLAGS="$BINUTILS_CONFFLAGS --enable-deterministic-archives"
fi
sed -i -e 's,MAKEINFO="$MISSING makeinfo",MAKEINFO=true,g' \
$BINUTILS_DIR/configure
buildinstall 1 $BINUTILS_DIR --target=$TRIPLE --disable-werror $SYSROOT_FLAGS \
$BINUTILS_CONFFLAGS
# gcc 1
if [ -z $GCC_URL ];
then
fetchextract http://ftpmirror.gnu.org/gnu/gcc/gcc-$GCC_VERSION/ gcc-$GCC_VERSION .tar.bz2
else
fetchextract "$GCC_URL"
if [ -e $GCC_EXTRACT_DIR ]; then
mv $GCC_EXTRACT_DIR gcc-$GCC_VERSION
fi
fi
[ "$GCC_BUILTIN_PREREQS" = "yes" ] && gccprereqs
# gcc 1 is only used to bootstrap musl and gcc 2, so it is pointless to
# optimize it.
# If GCC_STAGE1_NOOPT is set, we build it without optimization and debug info,
# which reduces overall build time considerably.
SAVE_CFLAGS="$CFLAGS"
SAVE_CXXFLAGS="$CXXFLAGS"
if [ -z "$GCC_STAGE1_NOOPT" ]; then GCC_STAGE1_NOOPT=0; fi
if [ "$GCC_STAGE1_NOOPT" -ne 0 ]
then
export CFLAGS="-O0 -g0"
export CXXFLAGS="-O0 -g0"
fi
buildinstall 1 gcc-$GCC_VERSION --target=$TRIPLE $SYSROOT_FLAGS \
--enable-languages=c --with-newlib --disable-libssp --disable-nls \
--disable-libquadmath --disable-threads --disable-decimal-float \
--disable-shared --disable-libmudflap --disable-libgomp --disable-libatomic \
$GCC_MULTILIB_CONFFLAGS \
$GCC_BOOTSTRAP_CONFFLAGS
export CFLAGS="$SAVE_CFLAGS"
export CXXFLAGS="$SAVE_CXXFLAGS"
# linux headers
fetchextract $LINUX_HEADERS_URL
LINUX_HEADERS_DIR=$(stripfileext $(basename $LINUX_HEADERS_URL))
if [ ! -e $LINUX_HEADERS_DIR/configured ]
then
(
cd $LINUX_HEADERS_DIR
make $LINUX_DEFCONFIG ARCH=$LINUX_ARCH
touch configured
)
fi
if [ ! -e $LINUX_HEADERS_DIR/installedheaders ]
then
(
cd $LINUX_HEADERS_DIR
make headers_install ARCH=$LINUX_ARCH INSTALL_HDR_PATH="$CC_PREFIX/$TRIPLE"
touch installedheaders
)
fi
if [ "$MUSL_VERSION" != "no" ]
then
# musl in CC prefix
PREFIX="$CC_PREFIX/$TRIPLE"
muslfetchextract
# We set both CROSS_COMPILE and CC because CC in the environment overrides
# and CROSS_COMPILE setting
buildinstall '' musl-$MUSL_VERSION \
--enable-debug --enable-optimize CROSS_COMPILE="$TRIPLE-" CC="$TRIPLE-gcc" $MUSL_CONFFLAGS
unset PREFIX
PREFIX="$CC_PREFIX"
# if it didn't build libc.so, disable dynamic linking
if [ ! -e "$CC_PREFIX/$TRIPLE/lib/libc.so" ]
then
GCC_CONFFLAGS="--disable-shared $GCC_CONFFLAGS"
fi
# gcc 2
buildinstall 2 gcc-$GCC_VERSION --target=$TRIPLE $SYSROOT_FLAGS \
--enable-languages=$LANGUAGES --disable-libmudflap \
--disable-libsanitizer --disable-nls \
$GCC_MULTILIB_CONFFLAGS \
$GCC_CONFFLAGS
fi
# un"fix" headers
rm -rf "$CC_PREFIX/lib/gcc/$TRIPLE"/*/include-fixed/ "$CC_PREFIX/lib/gcc/$TRIPLE"/*/include/stddef.h
# make backwards-named compilers for easier cross-compiling
(
cd "$CC_PREFIX/bin"
for tool in $TRIPLE-*
do
btool=`echo "$tool" | sed 's/-linux-musl/-musl-linux/'`
[ "$tool" != "$btool" -a ! -e "$btool" ] && ln -s $tool $btool
done
)
exit 0
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