Author: stepan Date: Tue Apr 20 19:19:20 2010 New Revision: 5465 URL: https://tracker.coreboot.org/trac/coreboot/changeset/5465
Log: Allow easy libpayload compilation using xcompile.
Signed-off-by: Stefan Reinauer stepan@coresystems.de Acked-by: Stefan Reinauer stepan@coresystems.de
Added: trunk/payloads/libpayload/util/xcompile/ trunk/payloads/libpayload/util/xcompile/xcompile Modified: trunk/payloads/libpayload/Makefile
Modified: trunk/payloads/libpayload/Makefile ============================================================================== --- trunk/payloads/libpayload/Makefile Tue Apr 20 18:20:48 2010 (r5464) +++ trunk/payloads/libpayload/Makefile Tue Apr 20 19:19:20 2010 (r5465) @@ -49,7 +49,10 @@ Q := @ endif
-CC = gcc +$(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile))) +include .xcompile + +CC ?= gcc HOSTCC = gcc HOSTCXX = g++ HOSTCFLAGS := -I$(srck) -I$(objk) -pipe
Added: trunk/payloads/libpayload/util/xcompile/xcompile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/payloads/libpayload/util/xcompile/xcompile Tue Apr 20 19:19:20 2010 (r5465) @@ -0,0 +1,103 @@ +#!/bin/sh +# +# This file is part of the coreboot project. +# +# Copyright (C) 2007-2010 coresystems GmbH +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# + +testcc() +{ + echo "_start(void) {}" > .$$$$.c + $1 -nostdlib $2 .$$$$.c -o .$$$$.tmp 2>/dev/null >/dev/null + ret=$? + rm -f .$$$$.c .$$$$.tmp + return $ret +} + +for make in make gmake gnumake; do + if [ "`$make --version 2>/dev/null | grep -c GNU`" -gt 0 ]; then + MAKE=$make + break + fi +done + +GCCPREFIX=invalid +TMPFILE=`mktemp /tmp/temp.XXXX 2>/dev/null || echo /tmp/temp.78gOIUGz` +touch $TMPFILE + +# This should be a loop over all supported architectures +TARCH=i386 +TWIDTH=32 +for gccprefixes in `pwd`/util/crossgcc/xgcc/bin/${TARCH}-elf- ${TARCH}-elf- ""; do + if ! which ${gccprefixes}as 2>/dev/null >/dev/null; then + continue + fi + rm -f ${TMPFILE}.o + if ${gccprefixes}as -o ${TMPFILE}.o ${TMPFILE}; then + TYPE=`${gccprefixes}objdump -p ${TMPFILE}.o` + if [ ${TYPE##* } == "elf${TWIDTH}-${TARCH}" ]; then + GCCPREFIX=$gccprefixes + ASFLAGS= + CFLAGS= + LDFLAGS= + break + fi + fi + if ${gccprefixes}as --32 -o ${TMPFILE}.o ${TMPFILE}; then + TYPE=`${gccprefixes}objdump -p ${TMPFILE}.o` + if [ ${TYPE##* } == "elf${TWIDTH}-${TARCH}" ]; then + GCCPREFIX=$gccprefixes + ASFLAGS=--32 + CFLAGS="-m32 " + LDFLAGS="-b elf32-i386" + break + fi + fi +done +rm -f $TMPFILE ${TMPFILE}.o + +if [ "$GCCPREFIX" = "invalid" ]; then + echo '$(error no suitable gcc found)' + exit 1 +fi + +CC="${GCCPREFIX}gcc" +testcc "$CC" "$CFLAGS-Wa,--divide " && CFLAGS="$CFLAGS-Wa,--divide " +testcc "$CC" "$CFLAGS-fno-stack-protector " && CFLAGS="$CFLAGS-fno-stack-protector " +testcc "$CC" "$CFLAGS-Wl,--build-id=none " && CFLAGS="$CFLAGS-Wl,--build-id=none " + +if which gcc 2>/dev/null >/dev/null; then + HOSTCC=gcc +else + HOSTCC=cc +fi + +cat << EOF +# elf${TWIDTH}-${TARCH} toolchain +AS:=${GCCPREFIX}as ${ASFLAGS} +CC:=${GCCPREFIX}gcc ${CFLAGS} +CPP:=${GCCPREFIX}cpp +AR:=${GCCPREFIX}ar +LD:=${GCCPREFIX}ld ${LDFLAGS} +STRIP:=${GCCPREFIX}strip +NM:=${GCCPREFIX}nm +OBJCOPY:=${GCCPREFIX}objcopy +OBJDUMP:=${GCCPREFIX}objdump + +# native toolchain +HOSTCC:=${HOSTCC} +EOF +