Hi,
after the recent troubles with various compilers miscompiling coreboot,
we decided to publish the script we use to build the compiler we use at
coresystems.
It requires a gnu compatible tar, gnu patch, wget and probably has
other, hidden dependencies on behaviour as found on Linux and Mac OS X.
Running buildgcc downloads the tarballs (tarball subdirectory), patches
the trees slightly (the attached patches must reside in the same
directory), links them together (in a totally unsupported but working
way), and builds and installs the toolchain (into $PWD/xgcc).
Add $PWD/xgcc/bin to your PATH, abuild should pick up the crosscompiler
automatically.
Regards,
Patrick
#!/bin/bash
GMPVER=4.2.4
MPFRVER=2.3.2
GCCVER=4.3.2
BINUTILSVER=2.18.50
BINUTILSTARVER=${BINUTILSVER}-20080109-2
TARGETDIR=`pwd`/xgcc
mkdir -p tarballs
if [ ! -f tarballs/gmp-${GMPVER}.tar.bz2 ]; then
(cd tarballs; wget ftp://ftp.gmplib.org/pub/gmp-${GMPVER}.tar.bz2)
fi
if [ ! -f tarballs/mpfr-${MPFRVER}.tar.bz2 ]; then
(cd tarballs; wget
http://www.mpfr.org/mpfr-current/mpfr-${MPFRVER}.tar.bz2)
fi
if [ ! -f tarballs/gcc-core-${GCCVER}.tar.bz2 ]; then
(cd tarballs; wget
ftp://ftp.gwdg.de/pub/gnu/ftp/gnu/gcc/gcc-${GCCVER}/gcc-core-${GCCVER}.tar.bz2)
fi
if [ ! -f tarballs/binutils-${BINUTILSTARVER}-src.tar.gz ]; then
(cd tarballs; wget
http://switch.dl.sourceforge.net/sourceforge/mingw/binutils-${BINUTILSTARVER}-src.tar.gz)
fi
if [ ! -d gmp-${GMPVER} ]; then
tar jxvf tarballs/gmp-${GMPVER}.tar.bz2
fi
if [ ! -d mpfr-${MPFRVER} ]; then
tar jxvf tarballs/mpfr-${MPFRVER}.tar.bz2
fi
if [ ! -d gcc-${GCCVER} ]; then
tar jxvf tarballs/gcc-core-${GCCVER}.tar.bz2
patch -N -p0 < use-gnu-style-comments-in-assembly.patch
fi
if [ ! -d binutils-${BINUTILSVER} ]; then
tar zxvf tarballs/binutils-${BINUTILSTARVER}-src.tar.gz
patch -N -p0 < no-i386-svr4-asm-comments.patch
fi
if [ ! -d combined ]; then
mkdir combined
(cd combined
ln -s ../gcc-${GCCVER}/* . 2>/dev/null
ln -s ../binutils-${BINUTILSVER}/* . 2>/dev/null
rm include
mkdir include
cd include
ln -s ../../gcc-${GCCVER}/include/* . 2>/dev/null
ln -s ../../binutils-${BINUTILSVER}/include/* . 2>/dev/null
)
fi
mkdir -p build-gmp build-mpfr build-gcc
(cd build-gmp
../gmp-${GMPVER}/configure --disable-shared --prefix=$TARGETDIR ABI=32
make
make install
)
CFLAGS=`grep __GMP_CFLAGS $TARGETDIR/include/gmp.h |cut -d\" -f2`
test `uname` == "Darwin" && CFLAGS="$CFLAGS -force_cpusubtype_ALL"
(cd build-mpfr
../mpfr-${MPFRVER}/configure --disable-shared --prefix=$TARGETDIR
--with-gmp=$TARGETDIR CFLAGS="$CFLAGS"
make
make install
)
(cd build-gcc
../combined/configure --prefix=$TARGETDIR --target=i386-elf
--disable-libssp --disable-bootstrap --with-gmp=$TARGETDIR
--with-mpfr=$TARGETDIR CFLAGS="$CFLAGS"
make
make install
)
--- binutils-2.18.50/gas/config/tc-i386.c~ 2009-01-20 14:19:04.000000000
+0100
+++ binutils-2.18.50/gas/config/tc-i386.c 2009-01-20 14:20:47.000000000
+0100
@@ -183,6 +183,7 @@
&& !defined (TE_GNU) \
&& !defined (TE_LINUX) \
&& !defined (TE_NETWARE) \
+ && 0 \
&& !defined (TE_FreeBSD) \
&& !defined (TE_NetBSD)))
/* This array holds the chars that always start a comment. If the
--- gcc-4.3.2/gcc/config/i386/unix.h~ 2009-01-20 16:05:45.000000000 +0100
+++ gcc-4.3.2/gcc/config/i386/unix.h 2009-01-20 16:05:47.000000000 +0100
@@ -32,7 +32,7 @@
/* String containing the assembler's comment-starter. */
-#define ASM_COMMENT_START "/"
+#define ASM_COMMENT_START "#"
/* Output to assembler file text saying following lines
may contain character constants, extra white space, comments, etc. */
--
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