42b37f537f
In the code we do the following in a number of places
to pre-initialize an array with a certain value before
overwriting some of the array with other values:
u8 mainboard_picr_data[FCH_INT_TABLE_SIZE] = {
[0 ... FCH_INT_TABLE_SIZE-1] = 0x1F,
}
clang does not like that behavior unless we specify
the option -Wno-initializer-overrides.
Remove the check for gcc in those places, too, because
1) it would silently change array contents between compilers
2) the check isn't sufficient to determine compilation on
clang vs gcc
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Change-Id: I93cc121b6fec099fcdbd5fd1114c2ff7cbc291dc
Reviewed-on: https://review.coreboot.org/20384
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
473 lines
12 KiB
Bash
Executable file
473 lines
12 KiB
Bash
Executable file
#!/usr/bin/env 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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# Copyright (C) 2016 Raptor Engineering, LLC
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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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# Usage: [--debug] [path to xgcc/bin directory]
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# Enable debug output
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if [ "$1" = "--debug" ]; then
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shift
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set -x
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fi
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TMPFILE=""
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XGCCPATH=$1
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# payloads under payloads/external crossgcc path
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if [ -d "$(pwd)/../../../../util/crossgcc/xgcc/bin/" ]
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then
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XGCCPATH=${XGCCPATH:-"$(pwd)/../../../../util/crossgcc/xgcc/bin/"}
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fi
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# libpayload crossgcc path
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if [ -d "$(pwd)/../../util/crossgcc/xgcc/bin/" ]
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then
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XGCCPATH=${XGCCPATH:-"$(pwd)/../../util/crossgcc/xgcc/bin/"}
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fi
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# coreboot crossgcc path
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if [ -d "$(pwd)/util/crossgcc/xgcc/bin/" ]
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then
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XGCCPATH=${XGCCPATH:-"$(pwd)/util/crossgcc/xgcc/bin/"}
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fi
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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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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 [ "$(iasl 2>/dev/null | grep -c ACPI)" -gt 0 ]; then
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IASL=iasl
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fi
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if program_exists gcc; then
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HOSTCC=gcc
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elif program_exists cc; then
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HOSTCC=cc
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else
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die "no host compiler found"
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fi
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# try to find the core count using various methods
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CORES="$(getconf _NPROCESSORS_ONLN 2>/dev/null)"
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if [ -z "$CORES" ]; then
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NPROC=$(command -v nproc)
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if [ -n "$NPROC" ]; then
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CORES="$($NPROC)"
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fi
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fi
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if [ -z "$CORES" ]; then
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SYSCTL=$(command -v sysctl)
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if [ -n "$SYSCTL" ]; then
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CORES="$(${SYSCTL} -n hw.ncpu 2>/dev/null)"
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fi
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fi
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if [ -z "$CORES" ] && [ -f /proc/cpuinfo ]; then
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CORES="$(grep 'processor' /proc/cpuinfo 2>/dev/null | wc -l)"
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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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CPUS?=${CORES}
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EOF
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testcc() {
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local cc="$1"
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local cflags="$2"
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local tmp_c="$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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"$cc" -nostdlib -Werror $cflags -c "$tmp_c" -o "$tmp_o" >/dev/null 2>&1
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}
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testld() {
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local gcc="$1"
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local cflags="$2"
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local ld="$3"
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local ldflags="$4"
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local tmp_o="$TMPFILE.o"
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local tmp_elf="$TMPFILE.elf"
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rm -f "$tmp_elf"
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testcc "$gcc" "$cflags" &&
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$ld -nostdlib -static $ldflags -o "$tmp_elf" "$tmp_o" >/dev/null 2>&1
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}
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testas() {
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local gccprefix="$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 endian="$5"
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local obj_file="$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="--$twidth"
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[ -n "$endian" ] && endian="-$endian"
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"${gccprefix}as" $use_dash_twidth $endian -o "$obj_file" "$TMPFILE" \
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2>/dev/null || return 1
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# Check output content type.
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local obj_type="$(LANG=C LC_ALL='' "${gccprefix}"objdump -p "$obj_file" 2>/dev/null)"
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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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unset ASFLAGS LDFLAGS
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unset CFLAGS_GCC CFLAGS_CLANG
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if [ -n "$use_dash_twidth" ]; then
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ASFLAGS="--$twidth"
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CFLAGS_GCC="-m$twidth"
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CFLAGS_CLANG="-m$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_GCC="$CFLAGS_GCC -Wl,-b,elf32-i386 -Wl,-melf_i386"
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CFLAGS_CLANG="$CFLAGS_GCC -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="$1"
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# Check for an operational -m32/-m64
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testcc "$GCC" "$CFLAGS_GCC -m$TWIDTH " &&
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CFLAGS_GCC="$CFLAGS_GCC -m$TWIDTH "
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# Use bfd linker instead of gold if available:
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testcc "$GCC" "$CFLAGS_GCC -fuse-ld=bfd" &&
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CFLAGS_GCC="$CFLAGS_GCC -fuse-ld=bfd" && LINKER_SUFFIX='.bfd'
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testcc "$GCC" "$CFLAGS_GCC -fno-stack-protector" &&
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CFLAGS_GCC="$CFLAGS_GCC -fno-stack-protector"
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testcc "$GCC" "$CFLAGS_GCC -Wl,--build-id=none" &&
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CFLAGS_GCC="$CFLAGS_GCC -Wl,--build-id=none"
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case "$architecture" in
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x86)
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;;
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x64)
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;;
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arm64)
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testld "$GCC" "$CFLAGS_GCC" "${GCCPREFIX}ld${LINKER_SUFFIX}" \
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"$LDFLAGS --fix-cortex-a53-843419" && \
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LDFLAGS_ARM64_A53_ERRATUM_843419+=" --fix-cortex-a53-843419"
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;;
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mipsel)
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testcc "$GCC" "$CFLAGS_GCC -mno-abicalls -fno-pic" && \
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CFLAGS_GCC+=" -mno-abicalls -fno-pic"
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# Enforce little endian mode.
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testcc "$GCC" "$CFLAGS_GCC -EL" && \
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CFLAGS_GCC+=" -EL"
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;;
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esac
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}
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detect_compiler_runtime() {
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test -z "$GCC" || \
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CC_RT_GCC="$(${GCC} ${CFLAGS_GCC} -print-libgcc-file-name)"
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if [ ${CLANG_RUNTIME} = "libgcc" ]; then
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CC_RT_CLANG=${CC_RT_GCC}
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else
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test -z "$CLANG" || \
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CC_RT_CLANG="$(${CLANG} ${CFLAGS_CLANG} -print-libgcc-file-name 2>/dev/null)"
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fi
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}
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report_arch_toolchain() {
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cat <<EOF
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# elf${TWIDTH}-${TBFDARCH} toolchain (${GCC})
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ARCH_SUPPORTED+=${TARCH}
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SUBARCH_SUPPORTED+=${TSUPP-${TARCH}}
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# GCC
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GCC_CC_${TARCH}:=${GCC}
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GCC_CFLAGS_${TARCH}:=${CFLAGS_GCC}
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GCC_COMPILER_RT_${TARCH}:=${CC_RT_GCC}
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GCC_COMPILER_RT_FLAGS_${TARCH}:=${CC_RT_EXTRA_GCC}
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EOF
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# Generally the x86 should build for i686 -- no sse/mmx
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# instructions since SMM modules are compiled using these
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# flags. Note that this doesn't prevent a project using
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# xcompile to explicitly specify -mmsse, etc flags.
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# The Quark processor doesn't support the instructions
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# introduced with the Pentium 6 architecture, so allow it
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# to use i586 instead.
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if [ "${TARCH}" = "x86_64" ] || [ "${TARCH}" = "x86_32" ]; then
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cat <<EOF
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ifneq (\$(CONFIG_USE_MARCH_586)\$(CONFIG_LP_USE_MARCH_586),)
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GCC_CFLAGS_${TARCH} += -march=i586
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else
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GCC_CFLAGS_${TARCH} += -march=i686
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endif
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EOF
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fi
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cat <<EOF
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# Clang
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CLANG_CC_${TARCH}:=${CLANG}
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CLANG_CFLAGS_${TARCH}:=${CFLAGS_CLANG}
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CLANG_CFLAGS_${TARCH}+=-no-integrated-as -Qunused-arguments -m${TWIDTH}
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# tone down clang compiler warnings
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CLANG_CFLAGS_${TARCH}+=-Wno-unused-variable -Wno-unused-function -Wno-tautological-compare
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CLANG_CFLAGS_${TARCH}+=-Wno-shift-overflow -Wno-address-of-packed-member -Wno-initializer-overrides
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CLANG_COMPILER_RT_${TARCH}:=${CC_RT_CLANG}
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CLANG_COMPILER_RT_FLAGS_${TARCH}:=${CC_RT_EXTRA_CLANG}
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ifeq (\$(CONFIG_COMPILER_GCC)\$(CONFIG_LP_COMPILER_GCC),y)
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CC_${TARCH}:=\$(GCC_CC_${TARCH})
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CFLAGS_${TARCH}:=\$(GCC_CFLAGS_${TARCH})
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COMPILER_RT_${TARCH}:=\$(GCC_COMPILER_RT_${TARCH})
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COMPILER_RT_FLAGS_${TARCH}:=\$(GCC_COMPILER_RT_FLAGS_${TARCH})
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else
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CC_${TARCH}:=\$(CLANG_CC_${TARCH})
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CFLAGS_${TARCH}:=\$(CLANG_CFLAGS_${TARCH})
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COMPILER_RT_${TARCH}:=\$(CLANG_COMPILER_RT_${TARCH})
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COMPILER_RT_FLAGS_${TARCH}:=\$(CLANG_COMPILER_RT_FLAGS_${TARCH})
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endif
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CPP_${TARCH}:=${GCCPREFIX}cpp
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AS_${TARCH}:=${GCCPREFIX}as ${ASFLAGS}
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LD_${TARCH}:=${GCCPREFIX}ld${LINKER_SUFFIX} ${LDFLAGS}
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EOF
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if [ "${TARCH}" = "arm64" ] && \
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[ -n "${LDFLAGS_ARM64_A53_ERRATUM_843419}" ]; then
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cat <<EOF
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ifeq (\$(CONFIG_ARM64_A53_ERRATUM_843419),y)
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LD_${TARCH}+=${LDFLAGS_ARM64_A53_ERRATUM_843419}
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endif
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EOF
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fi # if [ "${TARCH}" = "arm64" ]...
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cat <<EOF
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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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GNATBIND_${TARCH}:=${GCCPREFIX}gnatbind
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CROSS_COMPILE_${TARCH}:=${GCCPREFIX}
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EOF
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#The two blank lines above are intentional separators
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}
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# Architecture definitions
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SUPPORTED_ARCHITECTURES="arm arm64 mipsel riscv x64 x86 power8"
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# TARCH: local name for the architecture
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# (used as CC_${TARCH} in the build system)
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# TBFDARCHS: architecture name in binutils (eg elf32-${TBFDARCH})
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# TCLIST: first part of the compiler triplet (eg i386 in i386-elf)
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# TWIDTH: numerical argument for cpu mode: gcc -m${TWIDTH}
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# TSUPP: supported subarchs (for -mcpu=...)
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# TABI: typically elf, eabi or linux
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arch_config_arm() {
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TARCH="arm"
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TBFDARCHS="littlearm"
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TCLIST="armv7-a armv7a arm"
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TWIDTH="32"
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TSUPP="arm armv4 armv7 armv7_m armv7_r"
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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 riscv64"
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TWIDTH="64"
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TABI="elf"
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}
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arch_config_x64() {
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TARCH="x86_64"
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TBFDARCHS="x86-64"
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TCLIST="x86_64"
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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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CC_RT_EXTRA_GCC="--wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3"
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}
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arch_config_mipsel() {
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TARCH="mips"
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TBFDARCHS="tradlittlemips littlemips"
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TCLIST="mipsel"
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TWIDTH="32"
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TSUPP="mips mipsel"
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TABI="elf"
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TENDIAN="EL"
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}
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arch_config_power8() {
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TARCH="power8"
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TBFDARCHS="powerpc"
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TCLIST="powerpc64"
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TWIDTH="64"
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TSUPP="power8"
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TABI="linux-gnu" # there is no generic ABI on ppc64
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CC_RT_EXTRA_GCC="-mcpu=power8 -mbig-endian"
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}
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# Right now, the clang reference toolchain is not building compiler-rt builtins
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# for any of the cross compile architectures. Hence we use libgcc for now,
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# because that is available and lets us proceed with getting coreboot clang
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# ready. Toggle CLANG_RUNTIME if you want to experiment with compiler-rt.
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CLANG_RUNTIME="libgcc"
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# CLANG_RUNTIME="compiler-rt"
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test_architecture() {
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local architecture=$1
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local endian gccprefix search
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GCCPREFIX="invalid"
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unset TABI TARCH TBFDARCH TCLIST TENDIAN TSUPP TWIDTH
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unset CC_RT_EXTRA_GCC CC_RT_EXTRA_CLANG
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unset GCC CLANG
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if type "arch_config_$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 $toolchain-linux-"
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search="$search $toolchain-"
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search="$search $toolchain-linux-gnueabi-"
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done
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echo "###########################################################################"
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echo "# $architecture"
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echo "# TARCH_SEARCH=$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 gccprefix in $search ""; do
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program_exists "${gccprefix}as" || continue
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for endian in $TENDIAN ""; do
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{ testas "$gccprefix" "$TWIDTH" "$TBFDARCH" \
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"" "$endian" ||
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testas "$gccprefix" "$TWIDTH" "$TBFDARCH" \
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"TRUE" "$endian" ; } && \
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testcc "${gccprefix}gcc" "$CFLAGS_GCC" && \
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GCCPREFIX="$gccprefix" && \
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break 3
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done
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done
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done
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if [ "invalid" != "$GCCPREFIX" ]; then
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GCC="${GCCPREFIX}gcc"
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fi
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for clang_arch in $TCLIST invalid; do
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for clang_prefix in $search $XGCCPATH ""; do
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testcc "${clang_prefix}clang" "-target ${clang_arch}-$TABI -c" && break 2
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done
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done
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if [ "invalid" != "$clang_arch" ]; then
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# FIXME: this may break in a clang && !gcc configuration,
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# but that's more of a clang limitation. Let's be optimistic
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# that this will change in the future.
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CLANG="${clang_prefix}clang"
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CFLAGS_CLANG="-target ${clang_arch}-${TABI} --rtlib=${CLANG_RUNTIME} $CFLAGS_CLANG -ccc-gcc-name ${GCC}"
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fi
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}
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OUT="$(mktemp /tmp/temp.XXXXXX 2>/dev/null || echo /tmp/temp.coreboot.$RANDOM)"
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rm -f $OUT
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for architecture in $SUPPORTED_ARCHITECTURES; do
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(
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TMPFILE="$(mktemp /tmp/temp.XXXXXX 2>/dev/null || echo /tmp/temp.coreboot.$RANDOM)"
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touch $TMPFILE
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test_architecture "$architecture"
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detect_special_flags "$architecture"
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detect_compiler_runtime "$architecture"
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report_arch_toolchain
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clean_up
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) > $OUT.$architecture &
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done
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|
wait
|
|
|
|
for architecture in $SUPPORTED_ARCHITECTURES; do
|
|
cat $OUT.$architecture
|
|
rm -f $OUT.$architecture
|
|
done
|
|
echo XCOMPILE_COMPLETE:=1
|