old-cross-binutils/bfd/cpu-aarch64.c
Yufeng Zhang cec5225bd8 [AArch64, ILP32] 2/6 Parametrize elfnn-aarch64.c and add basic support in ld
and gas.

bfd/

	* Makefile.am (BFD64_BACKENDS): Add elf32-aarch64.lo.
	(BUILD_CFILES): Add elf32-aarch64.c.
	(elf32-aarch64.c): New rule for generating from elfnn-aarch64.c.
	* Makefile.in: Re-generated.
	* archures.c (bfd_mach_aarch64_ilp32): New define.
	* bfd-in.h (bfd_elf32_aarch64_init_maps): New declaration.
	(bfd_elf32_aarch64_set_options): Ditto.
	(elf32_aarch64_setup_section_lists): Ditto.
	(elf32_aarch64_next_input_section): Ditto.
	(elf32_aarch64_size_stubs): Ditto.
	(elf32_aarch64_build_stubs): Ditto.
	* bfd-in2.h: Re-generated.
	* config.bfd (aarch64-*-elf): Add bfd_elf32_littleaarch64_vec
	and bfd_elf32_bigaarch64_vec.
	(aarch64-*-linux*): Likewise.
	(aarch64_be-*-elf): Likewise.
	(aarch64_be-*-linux*): Likewise.
	* configure.in (bfd_elf32_bigaarch64_vec)
	(bfd_elf32_littleaarch64_vec): New.
	* configure: Re-generated.
	* cpu-aarch64.c (compatible): Don't allow mixing ilp32 objects with
	lp64 ones.
	(bfd_aarch64_arch_ilp32): New.
	(bfd_aarch64_arch): Link to bfd_aarch64_arch_ilp32.
	* elfnn-aarch64.c (ARCH_SIZE): New define.
	(AARCH64_R, AARCH64_R_STR, LOG_FILE_ALIGN): New defines.
	(GOT_ENTRY_SIZE): Re-define as (ARCH_SIZE / 8).
	(elf64_aarch64_*): Rename to elfNN_aarch64_*.
	(ELF64_R_*): Rename to ELFNN_R_*.
	Plus other paramaterization.
	* targets.c (bfd_elf32_bigaarch64_vec, bfd_elf32_littleaarch64_vec):
	New declarations.
	(_bfd_target_vector): Add bfd_elf32_bigaarch64_vec and
	bfd_elf32_littleaarch64_vec.

gas/

	* config/tc-aarch64.c (ilp32_p): New static variable.
	(elf64_aarch64_target_format): Return the target according to the
	value of 'ilp32_p'.
	(md_begin): Determine 'mach' according to the value of 'ilp32_p'.
	(aarch64_opts): Add support for options '-milp32' and '-mlp64'.
	(aarch64_dwarf2_addr_size): New function.
	* config/tc-aarch64.h (aarch64_dwarf2_addr_size): New declaration.
	(DWARF2_ADDR_SIZE): New define.

ld/

	* Makefile.am (ALL_64_EMULATION_SOURCES): Add eaarch64elf32.c.
	(eaarch64elf32.c): New dependency and rule.
	* Makefile.in: Re-generated.
	* configure.tgt (aarch64-*-elf): Add aarch64elf32.
	(aarch64_be-*-elf, aarch64_be-*-linux*, aarch64-*-linux*): Likewise.
	* emulparams/aarch64elf32.sh: New file.
2013-06-26 10:41:42 +00:00

127 lines
3.6 KiB
C

/* BFD support for AArch64.
Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of BFD, the Binary File Descriptor library.
This program 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 of the License, or
(at your option) any later version.
This program 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 COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"
/* This routine is provided two arch_infos and works out which Aarch64
machine which would be compatible with both and returns a pointer
to its info structure. */
static const bfd_arch_info_type *
compatible (const bfd_arch_info_type * a, const bfd_arch_info_type * b)
{
/* If a & b are for different architecture we can do nothing. */
if (a->arch != b->arch)
return NULL;
/* If a & b are for the same machine then all is well. */
if (a->mach == b->mach)
return a;
/* Don't allow mixing ilp32 with lp64. */
if ((a->mach & bfd_mach_aarch64_ilp32) != (b->mach & bfd_mach_aarch64_ilp32))
return NULL;
/* Otherwise if either a or b is the 'default' machine
then it can be polymorphed into the other. */
if (a->the_default)
return b;
if (b->the_default)
return a;
/* So far all newer cores are
supersets of previous cores. */
if (a->mach < b->mach)
return b;
else if (a->mach > b->mach)
return a;
/* Never reached! */
return NULL;
}
static struct
{
unsigned int mach;
char *name;
}
processors[] =
{
/* These two are example CPUs supported in GCC, once we have real
CPUs they will be removed. */
{ bfd_mach_aarch64, "example-1" },
{ bfd_mach_aarch64, "example-2" }
};
static bfd_boolean
scan (const struct bfd_arch_info *info, const char *string)
{
int i;
/* First test for an exact match. */
if (strcasecmp (string, info->printable_name) == 0)
return TRUE;
/* Next check for a processor name instead of an Architecture name. */
for (i = sizeof (processors) / sizeof (processors[0]); i--;)
{
if (strcasecmp (string, processors[i].name) == 0)
break;
}
if (i != -1 && info->mach == processors[i].mach)
return TRUE;
/* Finally check for the default architecture. */
if (strcasecmp (string, "aarch64") == 0)
return info->the_default;
return FALSE;
}
#define N(NUMBER, PRINT, DEFAULT, NEXT) \
{ 64, 64, 8, bfd_arch_aarch64, NUMBER, \
"aarch64", PRINT, 4, DEFAULT, compatible, scan, \
bfd_arch_default_fill, NEXT }
static const bfd_arch_info_type bfd_aarch64_arch_ilp32 =
N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", FALSE, NULL);
const bfd_arch_info_type bfd_aarch64_arch =
N (0, "aarch64", TRUE, &bfd_aarch64_arch_ilp32);
bfd_boolean
bfd_is_aarch64_special_symbol_name (const char *name, int type)
{
if (!name || name[0] != '$')
return FALSE;
if (name[1] == 'x' || name[1] == 'd')
type &= BFD_AARCH64_SPECIAL_SYM_TYPE_MAP;
else if (name[1] == 'm' || name[1] == 'f' || name[1] == 'p')
type &= BFD_AARCH64_SPECIAL_SYM_TYPE_TAG;
else
return FALSE;
return (type != 0 && (name[2] == 0 || name[2] == '.'));
}