Make xcompile support multiple architectures
With this change the the xcompile script now creates environment variables for more than one architecture. Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Change-Id: I349a1fd1d865ef16979f1dfd6aeca12b1ee2eed6 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/1915 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
This commit is contained in:
Ronald G. Minnich
parent
534c8a013f
commit
e820e5cb3a
26
Makefile
26
Makefile
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@ -78,7 +78,6 @@ HOSTCC = gcc
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HOSTCXX = g++
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HOSTCFLAGS := -g
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HOSTCXXFLAGS := -g
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LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && $(CC) -print-libgcc-file-name)
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DOXYGEN := doxygen
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DOXYGEN_OUTPUT_DIR := doxygen
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@ -114,6 +113,31 @@ else
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include $(HAVE_DOTCONFIG)
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ARCHDIR-$(CONFIG_ARCH_ARM) := armv7
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ARCHDIR-$(CONFIG_ARCH_X86) := x86
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ARCH-y := $(ARCHDIR-y)
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# If architecture folder name is different from GCC binutils architecture name,
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# override here.
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ARCH-$(CONFIG_ARCH_ARM) := littlearm
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ARCH-$(CONFIG_ARCH_X86) := i386
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CC := $(CC_$(ARCH-y))
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AS := $(AS_$(ARCH-y))
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LD := $(LD_$(ARCH-y))
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NM := $(NM_$(ARCH-y))
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OBJCOPY := $(OBJCOPY_$(ARCH-y))
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OBJDUMP := $(OBJDUMP_$(ARCH-y))
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READELF := $(READELF_$(ARCH-y))
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STRIP := $(STRIP_$(ARCH-y))
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AR := $(AR_$(ARCH-y))
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CFLAGS += $(CFLAGS_$(ARCH-y))
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LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && \
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$(CC) -print-libgcc-file-name)
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ifneq ($(INNER_SCANBUILD),y)
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ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
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CC:=clang -m32 -mno-mmx -mno-sse
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@ -23,7 +23,6 @@ export KERNELVERSION := $(shell if [ -d "$(top)/.git" -a -f "`which git`" ]; the
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#######################################################################
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# Basic component discovery
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ARCHDIR-$(CONFIG_ARCH_X86) := x86
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MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
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export MAINBOARDDIR
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@ -3,6 +3,7 @@
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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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@ -18,104 +19,192 @@
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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) {}" > .$$$$.c
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$1 -nostdlib -Werror $2 .$$$$.c -o .$$$$.tmp 2>/dev/null >/dev/null
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ret=$?
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rm -f .$$$$.c .$$$$.tmp
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return $ret
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TMPFILE=""
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die() {
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echo "ERROR: $*" >&2
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exit 1
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}
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for make in make gmake gnumake; do
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if [ "`$make --version 2>/dev/null | grep -c GNU`" -gt 0 ]; then
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MAKE=$make
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break
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clean_up() {
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if [ -n "$TMPFILE" ]; then
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rm -f "$TMPFILE" "$TMPFILE.c" "$TMPFILE.o"
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fi
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done
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}
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GCCPREFIX=invalid
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XGCCPATH=${1:-"`pwd`/util/crossgcc/xgcc/bin/"}
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echo '# XGCCPATH='${XGCCPATH}
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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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program_exists() {
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type "$1" >/dev/null 2>&1
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}
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# This loops over all supported architectures in TARCH
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TARCH=('i386' 'x86_64')
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TWIDTH=32
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for search_for in "${TARCH[@]}"; do
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TARCH_SEARCH=("${TARCH_SEARCH[@]}" ${XGCCPATH}${search_for}-elf- ${search_for}-elf-)
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done
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echo '# TARCH_SEARCH='${TARCH_SEARCH[@]}
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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 "_start(void) {}" >"$tmp_c"
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"$1" -nostdlib -Werror $2 "$tmp_c" -o "$tmp_o" >/dev/null 2>&1
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}
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for gccprefixes in "${TARCH_SEARCH[@]}" ""; do
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if ! which ${gccprefixes}as 2>/dev/null >/dev/null; then
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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" "$CFLAGS -Wa,--divide" &&
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CFLAGS="$CFLAGS -Wa,--divide"
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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 "$architecture" in
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arm )
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# testcc "$CC" "$CFLAGS -mcpu=cortex-a9" &&
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# CFLAGS="$CFLAGS -mcpu=cortex-a9"
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testcc "$CC" "\
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$CFLAGS -ffixed-r8 -msoft-float -marm -mabi=aapcs-linux \
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-mno-thumb-interwork -march=armv7 -mno-thumb-interwork" && CFLAGS="\
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$CFLAGS -ffixed-r8 -msoft-float -marm -mabi=aapcs-linux \
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-mno-thumb-interwork -march=armv7 -mno-thumb-interwork"
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;;
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esac
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}
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report_arch_toolchain() {
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cat <<EOF
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# elf${TWIDTH}-${TARCH} toolchain (${GCCPREFIX}gcc)
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CC_${TARCH}:=${GCCPREFIX}gcc ${CFLAGS}
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AS_${TARCH}:=${GCCPREFIX}as ${ASFLAGS}
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LD_${TARCH}:=${GCCPREFIX}ld ${LDFLAGS}
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NM_${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}:=${GCCPREFIX}ar
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EOF
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}
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# Create temporary file(s).
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TMPFILE="$(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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# Architecture definition
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SUPPORTED_ARCHITECTURE="x86 arm"
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# ARM Architecture
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TARCH_arm="littlearm"
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TCLIST_arm="littlearm"
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TWIDTH_arm="32"
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# X86 Architecture
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TARCH_x86="i386"
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TCLIST_x86="i386 x86_64"
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TWIDTH_x86="32"
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# This loops over all supported architectures.
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for architecture in $SUPPORTED_ARCHITECTURE; do
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GCCPREFIX="invalid"
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TARCH="$(eval echo \$TARCH_$architecture)"
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TCLIST="$(eval echo \$TCLIST_$architecture)"
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TWIDTH="$(eval echo \$TWIDTH_$architecture)"
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[ -z "$TARCH" -o -z "$TCLIST" -o -z "$TWIDTH" ] &&
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die "Missing architecture definition for $architecture."
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# To override toolchain, define CROSS_COMPILE_$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-elf-"
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search="$search $toolchain-elf-"
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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 gccprefixes in $search ""; do
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program_exists "${gccprefixes}as" || continue
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testas "$gccprefixes" "$TWIDTH" "$TARCH" "" && break
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testas "$gccprefixes" "$TWIDTH" "$TARCH" "TRUE" && 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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rm -f ${TMPFILE}.o
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if ${gccprefixes}as -o ${TMPFILE}.o ${TMPFILE}; then
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TYPE=`${gccprefixes}objdump -p ${TMPFILE}.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 ${TMPFILE}.o ${TMPFILE}; then
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TYPE=`${gccprefixes}objdump -p ${TMPFILE}.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 -Wl,-b,elf32-i386 -Wl,-melf_i386 "
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LDFLAGS="-b elf32-i386 -melf_i386"
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break
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fi
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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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done
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rm -f $TMPFILE ${TMPFILE}.o
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if [ "$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="$CFLAGS-Wl,--build-id=none "
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# GCC 4.6 is much more picky about unused variables. Turn off it's warnings for
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# now:
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testcc "$CC" "$CFLAGS-Wno-unused-but-set-variable " && \
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CFLAGS="$CFLAGS-Wno-unused-but-set-variable "
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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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if [ "`${XGCCPATH}/iasl 2>/dev/null | grep -c ACPI`" -gt 0 ]; then
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if [ "$(${XGCCPATH}/iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
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IASL=${XGCCPATH}iasl
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else
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IASL=iasl
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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 ${CFLAGS}
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AR:=${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:=${GCCPREFIX}objdump
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if program_exists gcc; then
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HOSTCC=gcc
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else
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HOSTCC=cc
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fi
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cat <<EOF
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IASL:=${IASL}
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# native toolchain
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HOSTCC:=${HOSTCC}
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EOF
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