c5f773d7f4
- Single instance of the CC build rule in Makefile, instantiated as necessary - Remove manual static.o and option_table.o rules, they're now covered by those instances of the CC build rule - Normalize object file paths, so it can be $(obj)/option_table.o instead of $(obj)/arch/i386/../../option_table.o now - Add -pipe to compiler flags. It might be detrimental on rare scenarios (building with extremly high disk bandwidth, eg. RAM disk), but it significantly helps on win32 (which seems to cache less aggressively than most unix-alikes) - Silence stderr on hostname and domainname invocations (cosmetic fix for cygwin) - Test for -Wa,--divide functionality of the target compiler (taken from abuild). It might be possible to remove most patches in crossgcc with that. - Report build of failover.inc and romstage.inc Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5224 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
103 lines
2.6 KiB
Bash
103 lines
2.6 KiB
Bash
#!/bin/sh
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#
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# This file is part of the coreboot project.
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#
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# Copyright (C) 2007-2010 coresystems GmbH
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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testcc()
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{
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echo "_start(void) {}" > .$$$$.c
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$1 -nostdlib $2 .$$$$.c -o .$$$$.tmp 2>/dev/null >/dev/null
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ret=$?
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rm -f .$$$$.c .$$$$.tmp
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return $ret
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}
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for make in make gmake gnumake; do
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if [ "`$make --version 2>/dev/null | grep -c GNU`" -gt 0 ]; then
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MAKE=$make
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break
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fi
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done
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GCCPREFIX=invalid
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TMP=`mktemp /tmp/temp.XXXX 2>/dev/null || echo /tmp/temp.78gOIUGz`
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touch $TMP
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# This should be a loop over all supported architectures
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TARCH=i386
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TWIDTH=32
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for gccprefixes in `pwd`/util/crossgcc/xgcc/bin/${TARCH}-elf- ${TARCH}-elf- ""; do
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if ! which ${gccprefixes}as 2>/dev/null >/dev/null; then
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continue
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fi
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rm -f ${TMP}.o
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if ${gccprefixes}as -o ${TMP}.o ${TMP}; then
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TYPE=`${gccprefixes}objdump -p ${TMP}.o`
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if [ ${TYPE##* } == "elf${TWIDTH}-${TARCH}" ]; then
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GCCPREFIX=$gccprefixes
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ASFLAGS=
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CFLAGS=
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LDFLAGS=
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break
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fi
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fi
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if ${gccprefixes}as --32 -o ${TMP}.o ${TMP}; then
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TYPE=`${gccprefixes}objdump -p ${TMP}.o`
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if [ ${TYPE##* } == "elf${TWIDTH}-${TARCH}" ]; then
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GCCPREFIX=$gccprefixes
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ASFLAGS=--32
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CFLAGS="-m32 "
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LDFLAGS="-b elf32-i386"
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break
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fi
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fi
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done
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rm -f $TMP ${TMP}.o
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if [ "$GCCPREFIX" = "invalid" ]; then
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echo '$(error no suitable gcc found)'
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exit 1
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fi
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CC="${GCCPREFIX}gcc"
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testcc "$CC" "$CFLAGS-Wa,--divide " && CFLAGS="$CFLAGS-Wa,--divide "
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testcc "$CC" "$CFLAGS-fno-stack-protector " && CFLAGS="$CFLAGS-fno-stack-protector "
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testcc "$CC" "$CFLAGS-Wl,--build-id=none " && CFLAGS="$CFLAGS-Wl,--build-id=none "
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if which gcc 2>/dev/null >/dev/null; then
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HOSTCC=gcc
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else
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HOSTCC=cc
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fi
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cat << EOF
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# elf${TWIDTH}-${TARCH} toolchain
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AS:=${GCCPREFIX}as ${ASFLAGS}
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CC:=${GCCPREFIX}gcc ${CFLAGS}
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CPP:=${GCCPREFIX}cpp
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AR:=${GCCPREFIX}ar
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LD:=${GCCPREFIX}ld ${LDFLAGS}
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STRIP:=${GCCPREFIX}strip
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NM:=${GCCPREFIX}nm
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OBJCOPY:=${GCCPREFIX}objcopy
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OBJDUMP:=${GCCPREFIX}objdump
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# native toolchain
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HOSTCC:=${HOSTCC}
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EOF
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