From 682a90c011c3cfbf89ce7af06db92d999161056a Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Tue, 9 Jun 2015 14:59:58 -0700 Subject: buildgcc: enable biarch support for x86_64-elf With this change, the x86_64-elf-gcc can compile i386-elf binaries by specifying -m32. The patch against GCC is needed to enable building the 32bit libraries when building x86_64-elf-gcc Change-Id: Ic86a009eccfdf3e33a398bcdcc13b15c8dfc0d31 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/10497 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- util/crossgcc/buildgcc | 13 ++-- util/crossgcc/patches/gcc-4.9.2_elf_biarch.patch | 76 ++++++++++++++++++++++++ 2 files changed, 84 insertions(+), 5 deletions(-) create mode 100644 util/crossgcc/patches/gcc-4.9.2_elf_biarch.patch (limited to 'util/crossgcc') diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc index c27d62cd7f..0ab0a530e4 100755 --- a/util/crossgcc/buildgcc +++ b/util/crossgcc/buildgcc @@ -22,8 +22,8 @@ cd $(dirname $0) -CROSSGCC_DATE="June 9th, 2015" -CROSSGCC_VERSION="1.30" +CROSSGCC_DATE="June 17th, 2015" +CROSSGCC_VERSION="1.31" # default settings PACKAGE=GCC @@ -380,10 +380,13 @@ build_LIBELF() { } build_BINUTILS() { - # Now build binutils + if [ $TARGETARCH == "x86_64-elf" ]; then + ADDITIONALTARGET=",i386-elf" + fi CC="$CC" ../binutils-${BINUTILS_VERSION}/configure --prefix=$TARGETDIR \ - --target=${TARGETARCH} --disable-werror --disable-nls \ - --enable-lto --enable-gold --enable-plugins CFLAGS="$HOSTCFLAGS" || touch .failed + --target=${TARGETARCH} --enable-targets=${TARGETARCH}${ADDITIONALTARGET} \ + --disable-werror --disable-nls --enable-lto --enable-gold \ + --enable-plugins --enable-multilibs CFLAGS="$HOSTCFLAGS" || touch .failed $MAKE $JOBS || touch .failed $MAKE install DESTDIR=$DESTDIR || touch .failed } diff --git a/util/crossgcc/patches/gcc-4.9.2_elf_biarch.patch b/util/crossgcc/patches/gcc-4.9.2_elf_biarch.patch new file mode 100644 index 0000000000..25749ef9ea --- /dev/null +++ b/util/crossgcc/patches/gcc-4.9.2_elf_biarch.patch @@ -0,0 +1,76 @@ +diff -urN gcc-4.9.2/gcc/config/i386/t-elf64 gcc-4.9.2/gcc/config/i386/t-elf64 +--- gcc-4.9.2/gcc/config/i386/t-elf64 1969-12-31 16:00:00.000000000 -0800 ++++ gcc-4.9.2/gcc/config/i386/t-elf64 2015-06-17 11:20:08.032513005 -0700 +@@ -0,0 +1,38 @@ ++# Copyright (C) 2002-2014 Free Software Foundation, Inc. ++# ++# This file is part of GCC. ++# ++# GCC 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; either version 3, or (at your option) ++# any later version. ++# ++# GCC 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 GCC; see the file COPYING3. If not see ++# . ++ ++# On Debian, Ubuntu and other derivative distributions, the 32bit libraries ++# are found in /lib32 and /usr/lib32, /lib64 and /usr/lib64 are symlinks to ++# /lib and /usr/lib, while other distributions install libraries into /lib64 ++# and /usr/lib64. The LSB does not enforce the use of /lib64 and /usr/lib64, ++# it doesn't tell anything about the 32bit libraries on those systems. Set ++# MULTILIB_OSDIRNAMES according to what is found on the target. ++ ++# To support i386, x86-64 and x32 libraries, the directory structrue ++# should be: ++# ++# /lib has i386 libraries. ++# /lib64 has x86-64 libraries. ++# /libx32 has x32 libraries. ++# ++comma=, ++MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG)) ++MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS))) ++MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-elf) ++MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-elf) ++MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-elf-x32) +diff -urN gcc-4.9.2/gcc/config.gcc gcc-4.9.2/gcc/config.gcc +--- gcc-4.9.2/gcc/config.gcc 2015-06-17 11:20:57.841008182 -0700 ++++ gcc-4.9.2/gcc/config.gcc 2015-06-17 11:17:24.818890200 -0700 +@@ -1353,6 +1353,30 @@ + ;; + x86_64-*-elf*) + tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h" ++ tmake_file="${tmake_file} i386/t-elf64" ++ x86_multilibs="${with_multilib_list}" ++ if test "$x86_multilibs" = "default"; then ++ case ${with_abi} in ++ x32 | mx32) ++ x86_multilibs="mx32" ++ ;; ++ *) ++ x86_multilibs="m64,m32" ++ ;; ++ esac ++ fi ++ x86_multilibs=`echo $x86_multilibs | sed -e 's/,/ /g'` ++ for x86_multilib in ${x86_multilibs}; do ++ case ${x86_multilib} in ++ m32 | m64 | mx32) ++ TM_MULTILIB_CONFIG="${TM_MULTILIB_CONFIG},${x86_multilib}" ++ ;; ++ *) ++ echo "--with-multilib-list=${x86_with_multilib} not supported." ++ exit 1 ++ esac ++ done ++ TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'` + ;; + i[34567]86-*-rdos*) + tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/rdos.h" -- cgit v1.2.3