a6b220d8f8
The upcoming MIPS toolchain inside chroot generates elf images of elf32-tradlittlemips format, whereas readily available tools outside of chroot generate images of elf32-littlemips format. Both of these formats are perfectly fine, but xcompile accepts only one format per CPU architecture. This patch allows to specify multiple formats per architecture, any matching format will suffice. BUG=chrome-os-partner:31438 TEST=emerged arm, x86 and mips targets inside chroot Change-Id: I2c6b8e46b9299059b8e099b93c8c3dcf0a569899 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 7f2f1d51643f33b72ac5e4091669f38662e5b9ce Original-Change-Id: I22405e71ac72b985fad51e2f5d7cc014107b8a9e Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/214599 Original-Reviewed-by: Stefan Reinauer <reinauer@google.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8823 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
264 lines
6.2 KiB
Bash
Executable file
264 lines
6.2 KiB
Bash
Executable file
#!/bin/bash
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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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# Copyright (C) 2012 Google Inc
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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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TMPFILE=""
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XGCCPATH=${1:-"`pwd`/util/crossgcc/xgcc/bin/"}
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die() {
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echo "ERROR: $*" >&2
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exit 1
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}
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clean_up() {
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if [ -n "$TMPFILE" ]; then
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rm -f "$TMPFILE" "$TMPFILE.c" "$TMPFILE.o"
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fi
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}
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# Create temporary file(s).
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TMPFILE="$(mktemp /tmp/temp.XXXX 2>/dev/null || echo /tmp/temp.78gOIUGz)"
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touch "$TMPFILE"
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trap clean_up EXIT
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program_exists() {
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type "$1" >/dev/null 2>&1
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}
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if [ "$(${XGCCPATH}/iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
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IASL=${XGCCPATH}iasl
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elif [ "$(iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
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IASL=iasl
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else
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die "no iasl found"
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fi
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if program_exists gcc; then
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HOSTCC=gcc
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elif program_exists cc; then
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HOSTCC=cc
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else
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die "no host compiler found"
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fi
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cat <<EOF
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# platform agnostic and host tools
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IASL:=${IASL}
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HOSTCC:=${HOSTCC}
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EOF
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testcc() {
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local tmp_c="$TMPFILE.c"
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local tmp_o="$TMPFILE.o"
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rm -f "$tmp_c" "$tmp_o"
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echo "void _start(void) {}" >"$tmp_c"
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"$1" -nostdlib -Werror $2 "$tmp_c" -o "$tmp_o" >/dev/null 2>&1
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}
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testas() {
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local gccprefixes="$1"
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local twidth="$2"
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local arch="$3"
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local use_dash_twidth="$4"
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local obj_file="$TMPFILE.o"
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local full_arch="elf$twidth-$arch"
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rm -f "$obj_file"
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[ -n "$use_dash_twidth" ] && use_dash_twidth="--$twidth"
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${gccprefixes}as $use_dash_twidth -o "$obj_file" $TMPFILE 2>/dev/null ||
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return 1
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# Check output content type.
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local obj_type="$(${gccprefixes}objdump -p $obj_file)"
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local obj_arch="$(expr "$obj_type" : '.*format \(.[a-z0-9-]*\)')"
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[ "$obj_arch" = "$full_arch" ] || return 1
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# Architecture matched.
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GCCPREFIX="$gccprefixes"
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if [ -z "$use_dash_twidth" ]; then
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ASFLAGS=""
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CFLAGS=""
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LDFLAGS=""
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else
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ASFLAGS="--$twidth"
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CFLAGS="-m$twidth"
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LDFLAGS="-b $full_arch"
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fi
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# Special parameters only available in dash_twidth mode.
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[ -n "$use_dash_twidth" ] && case "$full_arch" in
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"elf32-i386" )
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LDFLAGS="$LDFLAGS -melf_i386"
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CFLAGS="$CFLAGS -Wl,-b,elf32-i386 -Wl,-melf_i386"
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;;
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esac
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return 0
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}
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detect_special_flags() {
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local architecture="$1"
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# GCC 4.6 is much more picky about unused variables.
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# Turn off it's warnings for now:
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testcc "$CC" "$CFLAGS -Wno-unused-but-set-variable " &&
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CFLAGS="$CFLAGS -Wno-unused-but-set-variable "
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# Use bfd linker instead of gold if available:
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testcc "$CC" "$CFLAGS -fuse-ld=bfd" &&
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CFLAGS="$CFLAGS -fuse-ld=bfd" && LINKER_SUFFIX='.bfd'
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testcc "$CC" "$CFLAGS -fno-stack-protector"&&
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CFLAGS="$CFLAGS -fno-stack-protector"
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testcc "$CC" "$CFLAGS -Wl,--build-id=none" &&
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CFLAGS="$CFLAGS -Wl,--build-id=none"
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case "$architecture" in
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x86)
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testcc "$CC" "$CFLAGS -Wa,--divide" &&
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CFLAGS="$CFLAGS -Wa,--divide"
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# Always build for i686 -- no sse/mmx instructions since SMM
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# modules are compiled using these flags. Note that this
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# doesn't prevent a project using xcompile to explicitly
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# specify -mmsse, etc flags.
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CFLAGS="$CFLAGS -march=i686"
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;;
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esac
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}
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report_arch_toolchain() {
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cat <<EOF
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# elf${TWIDTH}-${TBFDARCH} toolchain (${GCCPREFIX}gcc)
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ARCH_SUPPORTED+=${TARCH}
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SUBARCH_SUPPORTED+=${TSUPP-${TARCH}}
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CC_${TARCH}:=${GCCPREFIX}gcc
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CFLAGS_${TARCH}:=${CFLAGS}
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CPP_${TARCH}:=${GCCPREFIX}cpp
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AS_${TARCH}:=${GCCPREFIX}as ${ASFLAGS}
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LD_${TARCH}:=${GCCPREFIX}ld${LINKER_SUFFIX} ${LDFLAGS}
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NM_${TARCH}:=${GCCPREFIX}nm
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OBJCOPY_${TARCH}:=${GCCPREFIX}objcopy
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OBJDUMP_${TARCH}:=${GCCPREFIX}objdump
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READELF_${TARCH}:=${GCCPREFIX}readelf
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STRIP_${TARCH}:=${GCCPREFIX}strip
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AR_${TARCH}:=${GCCPREFIX}ar
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EOF
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}
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# Architecture definition
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SUPPORTED_ARCHITECTURE="x86 arm arm64 riscv mipsel"
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arch_config_arm() {
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TARCH="arm"
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TBFDARCHS="littlearm"
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TCLIST="armv7a armv7-a"
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TWIDTH="32"
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TSUPP="arm armv4 armv7"
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TABI="eabi"
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}
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arch_config_arm64() {
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TARCH="arm64"
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TBFDARCHS="littleaarch64"
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TCLIST="aarch64"
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TWIDTH="64"
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TSUPP="arm64 armv8_64"
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TABI="elf"
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}
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arch_config_riscv() {
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TARCH="riscv"
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TBFDARCHS="littleriscv"
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TCLIST="riscv"
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TWIDTH="64"
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TABI="elf"
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}
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arch_config_x86() {
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TARCH="x86_32"
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TBFDARCHS="i386"
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TCLIST="i386 x86_64"
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TWIDTH="32"
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TABI="elf"
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}
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arch_config_mipsel() {
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TARCH="mipsel"
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TBFDARCHS="tradlittlemips littlemips"
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TCLIST="mipsel"
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TWIDTH="32"
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TABI="elf"
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}
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test_architecture() {
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architecture=$1
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GCCPREFIX="invalid"
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unset TARCH TBFDARCH TCLIST TWIDTH TSUPP TABI
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if type arch_config_$architecture > /dev/null; then
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arch_config_$architecture
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else
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die "no architecture definition for $architecture"
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fi
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# To override toolchain, define CROSS_COMPILE_$arch or CROSS_COMPILE as
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# environment variable.
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# Ex: CROSS_COMPILE_arm="armv7a-cros-linux-gnueabi-"
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# CROSS_COMPILE_x86="i686-pc-linux-gnu-"
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search="$(eval echo \$CROSS_COMPILE_$architecture 2>/dev/null)"
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search="$search $CROSS_COMPILE"
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for toolchain in $TCLIST; do
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search="$search $XGCCPATH$toolchain-$TABI-"
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search="$search $toolchain-$TABI-"
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search="$search $toolchain-linux-gnu-"
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search="$search $toolchain-"
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done
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echo "# $architecture TARCH_SEARCH=$search"
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# Search toolchain by checking assembler capability.
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for TBFDARCH in $TBFDARCHS; do
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for gccprefixes in $search ""; do
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program_exists "${gccprefixes}as" || continue
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testas "$gccprefixes" "$TWIDTH" "$TBFDARCH" "" && break
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testas "$gccprefixes" "$TWIDTH" "$TBFDARCH" "TRUE" && break
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done
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[ "$GCCPREFIX" = "invalid" ] || break
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done
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if [ "$GCCPREFIX" = "invalid" ]; then
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echo "Warning: no suitable GCC for $architecture." >&2
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continue
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fi
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CC="${GCCPREFIX}"gcc
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detect_special_flags "$architecture"
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report_arch_toolchain
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}
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# This loops over all supported architectures.
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for architecture in $SUPPORTED_ARCHITECTURE; do
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test_architecture $architecture
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done
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