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[patch] armbe-linux target defaults to big-endian

Hi,

The attached patches (for binutils 2.14 and GCC 3.3.1) add/fix the armbe-linux target so that big-endian code is generated by default.

It works for what I want but I suspect it's not done properly.

David Vrabel
--
David Vrabel, Design Engineer

Arcom                         Tel: +44 (0)1223 411200 ext. 3233
Clifton Road                  Fax: +44 (0)1223 403400
Cambridge CB1 7EA             E-mail: dvrabel@arcom.com
UK                            Web: http://www.arcom.com/


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diff -urN binutils-2.14.orig/gas/configure.in binutils-2.14/gas/configure.in
--- binutils-2.14.orig/gas/configure.in	2003-06-02 21:35:23.000000000 +0100
+++ binutils-2.14/gas/configure.in	2003-10-03 11:35:04.000000000 +0100
@@ -115,6 +115,7 @@
     endian=
     case ${cpu} in
       alpha*)		cpu_type=alpha ;;
+      arm*be|xscale*be|strongarm*be) cpu_type=arm endian=big ;;
       arm*b|xscale*b|strongarm*b) cpu_type=arm endian=big ;;
       arm*|xscale*|strongarm*)    cpu_type=arm endian=little ;;
       hppa*)		cpu_type=hppa ;;
diff -urN binutils-2.14.orig/ld/configure.tgt binutils-2.14/ld/configure.tgt
--- binutils-2.14.orig/ld/configure.tgt	2003-06-12 15:25:52.000000000 +0100
+++ binutils-2.14/ld/configure.tgt	2003-10-02 15:08:33.000000000 +0100
@@ -244,6 +244,8 @@
 arm-*-kaos*)		targ_emul=armelf ;;
 arm9e-*-elf)		targ_emul=armelf ;;
 arm-*-oabi)		targ_emul=armelf_oabi ;;
+arm*be-*-linux-gnu*)	targ_emul=armbeelf_linux; targ_extra_emuls=armbeelf ;;
+arm*b-*-linux-gnu*)	targ_emul=armbeelf_linux; targ_extra_emuls=armbeelf ;;
 arm*-*-linux-gnu*)	targ_emul=armelf_linux; targ_extra_emuls=armelf ;;
 arm*-*-uclinux*)	targ_emul=armelf_linux; targ_extra_emuls=armelf ;;
 arm*-*-conix*)		targ_emul=armelf ;;
diff -urN binutils-2.14.orig/ld/emulparams/armbeelf_linux.sh binutils-2.14/ld/emulparams/armbeelf_linux.sh
--- binutils-2.14.orig/ld/emulparams/armbeelf_linux.sh	1970-01-01 01:00:00.000000000 +0100
+++ binutils-2.14/ld/emulparams/armbeelf_linux.sh	2003-10-02 10:33:06.000000000 +0100
@@ -0,0 +1,17 @@
+ARCH=arm
+SCRIPT_NAME=elf
+OUTPUT_FORMAT="elf32-bigarm"
+BIG_OUTPUT_FORMAT="elf32-bigarm"
+LITTLE_OUTPUT_FORMAT="elf32-littlearm"
+MAXPAGESIZE=0x8000
+TEMPLATE_NAME=elf32
+EXTRA_EM_FILE=armelf
+GENERATE_SHLIB_SCRIPT=yes
+
+DATA_START_SYMBOLS='__data_start = . ;';
+OTHER_TEXT_SECTIONS='*(.glue_7t) *(.glue_7)'
+OTHER_READONLY_SECTIONS='.note.gnu.arm.ident : { KEEP (*(.note.gnu.arm.ident)) }'
+OTHER_BSS_SYMBOLS='__bss_start__ = .;'
+OTHER_BSS_END_SYMBOLS='_bss_end__ = . ; __bss_end__ = . ; __end__ = . ;'
+
+TEXT_START_ADDR=0x00008000
diff -urN binutils-2.14.orig/ld/emulparams/armbeelf.sh binutils-2.14/ld/emulparams/armbeelf.sh
--- binutils-2.14.orig/ld/emulparams/armbeelf.sh	1970-01-01 01:00:00.000000000 +0100
+++ binutils-2.14/ld/emulparams/armbeelf.sh	2003-10-02 10:33:59.000000000 +0100
@@ -0,0 +1,25 @@
+MACHINE=
+SCRIPT_NAME=elf
+OUTPUT_FORMAT="elf32-bigarm"
+BIG_OUTPUT_FORMAT="elf32-bigarm"
+LITTLE_OUTPUT_FORMAT="elf32-littlearm"
+TEXT_START_ADDR=0x8000
+TEMPLATE_NAME=elf32
+EXTRA_EM_FILE=armelf
+OTHER_TEXT_SECTIONS='*(.glue_7t) *(.glue_7)'
+OTHER_READONLY_SECTIONS='.note.gnu.arm.ident : { KEEP (*(.note.gnu.arm.ident)) }'
+OTHER_BSS_SYMBOLS='__bss_start__ = .;'
+OTHER_BSS_END_SYMBOLS='_bss_end__ = . ; __bss_end__ = . ; __end__ = . ;'
+
+DATA_START_SYMBOLS='__data_start = . ;';
+
+GENERATE_SHLIB_SCRIPT=yes
+
+ARCH=arm
+MACHINE=
+MAXPAGESIZE=256
+ENTRY=_start
+EMBEDDED=yes
+
+# This sets the stack to the top of the simulator memory (2^19 bytes).
+STACK_ADDR=0x80000
diff -urN binutils-2.14.orig/ld/Makefile.am binutils-2.14/ld/Makefile.am
--- binutils-2.14.orig/ld/Makefile.am	2003-04-24 13:36:07.000000000 +0100
+++ binutils-2.14/ld/Makefile.am	2003-10-02 15:13:31.000000000 +0100
@@ -118,8 +118,10 @@
 	earmaoutl.o \
 	earmcoff.o \
 	earmelf.o \
+	earmbeelf.o \
 	earmelf_fbsd.o \
 	earmelf_linux.o \
+	earmbeelf_linux.o \
 	earmelf_nbsd.o \
 	earmelfb_nbsd.o \
 	earmelf_oabi.o \
@@ -457,6 +459,10 @@
   $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} armelf "$(tdir_armelf)"
+earmbeelf.c: $(srcdir)/emulparams/armbeelf.sh \
+  $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+	${GENSCRIPTS} armbeelf "$(tdir_armbeelf)"
 earmelf_oabi.c: $(srcdir)/emulparams/armelf_oabi.sh \
   $(srcdir)/emultempl/armelf_oabi.em $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} armelf_oabi "$(tdir_armelf)"
@@ -469,6 +475,10 @@
   $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} armelf_linux "$(tdir_armelf_linux)"
+earmbeelf_linux.c: $(srcdir)/emulparams/armbeelf_linux.sh \
+  $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
+  $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
+	${GENSCRIPTS} armbeelf_linux "$(tdir_armbeelf_linux)"
 earmelf_nbsd.c: $(srcdir)/emulparams/armelf_nbsd.sh \
   $(srcdir)/emulparams/armelf.sh \
   $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \

diff -urN gcc-3.3.1.orig/gcc/config/arm/be-linux-elf.h gcc-3.3.1/gcc/config/arm/be-linux-elf.h
--- gcc-3.3.1.orig/gcc/config/arm/be-linux-elf.h	1970-01-01 01:00:00.000000000 +0100
+++ gcc-3.3.1/gcc/config/arm/be-linux-elf.h	2003-10-03 11:07:04.000000000 +0100
@@ -0,0 +1,42 @@
+/* Definitions for ARM (big-endian) running Linux-based GNU systems using ELF
+   Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002 
+   Free Software Foundation, Inc.
+   Contributed by Philip Blundell <philb@gnu.org>
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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 this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* linux-elf.h should have already been included.  Now just override
+   any conflicting definitions and add any extras.  */
+
+/* Run-time Target Specification.  */
+#undef  TARGET_VERSION
+#define TARGET_VERSION  fputs (" (ARM (big-endian) GNU/Linux with ELF)", stderr);
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS | ARM_FLAG_BIG_END)
+
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m armbeelf_linux -p"
+
+#undef  MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS \
+	{ "marm", "mbig-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }
+
+/* Default is big endian, which defines __ARMEB__ */
+#undef CPP_ENDIAN_DEFAULT_SPEC
+#define CPP_ENDIAN_DEFAULT_SPEC "-D__ARMEB__"
diff -urN gcc-3.3.1.orig/gcc/config/arm/linux-elf.h gcc-3.3.1/gcc/config/arm/linux-elf.h
--- gcc-3.3.1.orig/gcc/config/arm/linux-elf.h	2002-12-10 10:55:31.000000000 +0000
+++ gcc-3.3.1/gcc/config/arm/linux-elf.h	2003-10-03 11:05:08.000000000 +0100
@@ -86,7 +86,7 @@
    %{rdynamic:-export-dynamic} \
    %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
    -X \
-   %{mbig-endian:-EB}" \
+   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
    SUBTARGET_EXTRA_LINK_SPEC
 
 #define TARGET_OS_CPP_BUILTINS()		\
diff -urN gcc-3.3.1.orig/gcc/config.gcc gcc-3.3.1/gcc/config.gcc
--- gcc-3.3.1.orig/gcc/config.gcc	2003-06-27 12:44:22.000000000 +0100
+++ gcc-3.3.1/gcc/config.gcc	2003-10-03 10:37:25.000000000 +0100
@@ -697,6 +697,17 @@
 	extra_parts=""
 	use_collect2=yes
 	;;
+arm*be-*-linux*|arm*b-*-linux*)	# ARM (big-endian) GNU/Linux with ELF
+	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/linux-gas.h arm/linux-elf.h arm/be-linux-elf.h"
+	tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
+	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
+	gnu_ld=yes
+	case x${enable_threads} in
+	x | xyes | xpthreads | xposix)
+		thread_file='posix'
+		;;
+	esac
+	;;
 arm*-*-linux*)			# ARM GNU/Linux with ELF
 	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/linux-gas.h arm/linux-elf.h"
 	tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
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