2003-03-02 23:07:10 +01:00
|
|
|
# This shell script emits a C file. -*- C -*-
|
2009-09-02 09:25:43 +02:00
|
|
|
# Copyright 2003, 2004, 2005, 2007, 2008, 2009
|
|
|
|
# Free Software Foundation, Inc.
|
2003-03-02 23:07:10 +01:00
|
|
|
#
|
2007-07-06 16:09:45 +02:00
|
|
|
# This file is part of the GNU Binutils.
|
2003-03-02 23:07:10 +01:00
|
|
|
#
|
|
|
|
# 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
|
2007-07-06 16:09:45 +02:00
|
|
|
# the Free Software Foundation; either version 3 of the License, or
|
2003-03-02 23:07:10 +01:00
|
|
|
# (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; if not, write to the Free Software
|
2007-07-06 16:09:45 +02:00
|
|
|
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
|
|
# MA 02110-1301, USA.
|
2003-03-02 23:07:10 +01:00
|
|
|
#
|
|
|
|
|
|
|
|
# This file is sourced from elf32.em, and defines extra alpha
|
|
|
|
# specific routines.
|
|
|
|
#
|
2007-07-19 21:56:10 +02:00
|
|
|
fragment <<EOF
|
2003-03-02 23:07:10 +01:00
|
|
|
|
|
|
|
#include "elf/internal.h"
|
|
|
|
#include "elf/alpha.h"
|
|
|
|
#include "elf-bfd.h"
|
|
|
|
|
2005-05-30 01:16:09 +02:00
|
|
|
static bfd_boolean limit_32bit;
|
|
|
|
|
|
|
|
extern bfd_boolean elf64_alpha_use_secureplt;
|
|
|
|
|
2003-03-02 23:07:10 +01:00
|
|
|
|
|
|
|
/* Set the start address as in the Tru64 ld. */
|
|
|
|
#define ALPHA_TEXT_START_32BIT 0x12000000
|
|
|
|
|
2005-05-30 01:16:09 +02:00
|
|
|
static void
|
|
|
|
alpha_after_open (void)
|
|
|
|
{
|
2008-02-15 10:03:02 +01:00
|
|
|
if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
|
* elf-bfd.h (emum elf_object_id): Rename to elf_target_id. Add
entries for other architectures.
(struct elf_link_hash_table): Add hash_table_id field.
(elf_hash_table_id): New accessor macro.
* elflink.c (_bfd_elf_link_hash_table_init): Add target_id
parameter.
* elf-m10300.c (elf32_mn10300_hash_table): Check table id before
returning cast pointer.
(elf32_mn10300_link_hash_table_create): Identify new table as
containing MN10300 extensions.
(mn10300_elf_relax_section): Check pointer returned by
elf32_mn10300_hash_table.
* elf32-arm.c: Likewise, except using ARM extensions.
* elf32-avr.c: Likewise, except using AVR extensions.
* elf32-bfin.c: Likewise, except using BFIN extensions.
* elf32-cris.c: Likewise, except using CRIS extensions.
* elf32-frv.c: Likewise, except using FRV extensions.
* elf32-hppa.c: Likewise, except using HPPA32 extensions.
* elf32-i386.c: Likewise, except using I386 extensions.
* elf32-lm32.c: Likewise, except using LM32 extensions.
* elf32-m32r.c: Likewise, except using M32RM extensions.
* elf32-m68hc11.c: Likewise, except using M68HC11 extensions.
* elf32-m68hc1x.c: Likewise, except using M68HC11 extensions.
* elf32-m68hc1x.h: Likewise, except using M68HC11 extensions.
* elf32-m68k.c: Likewise, except using M68K extensions.
* elf32-microblaze.c: Likewise, except using MICROBLAZE extensions.
* elf32-ppc.c: Likewise, except using PPC32 extensions.
* elf32-s390.c: Likewise, except using S390 extensions.
* elf32-sh.c: Likewise, except using SH extensions.
* elf32-spu.c: Likewise, except using SPU extensions.
* elf32-xtensa.c: Likewise, except using XTENSA extensions.
* elf64-alpha.c: Likewise, except using ALPHA extensions.
* elf64-hppa.c: Likewise, except using HPPA64 extensions.
* elf64-ppc.c: Likewise, except using PPC64 extensions.
* elf64-s390.c: Likewise, except using S390 extensions.
* elf64-x86-64.c: Likewise, except using X86_64 extensions.
* elfxx-ia64.c: Likewise, except using IA64 extensions.
* elfxx-mips.c: Likewise, except using MIPS extensions.
* elfxx-sparc.c: Likewise, except using SPARC extensions.
* elfxx-sparc.h: Likewise, except using SPARC extensions.
* elf32-cr16.c (struct elf32_cr16_link_hash_table): Delete
redundant structure.
(elf32_cr16_hash_table): Delete unused macro.
(elf32_cr16_link_hash_traverse): Delete unused macro.
* elf32-score.c: Likewise.
* elf32-score7.c: Likewise.
* elf32-vax.c: Likewise.
* elf64-sh64.c: Likewise.
* emultempl/alphaelf.em: Update value expected from elf_object_id.
* emultempl/hppaelf.em: Likewise.
* emultempl/mipself.em: Likewise.
* emultempl/ppc32elf.em: Likewise.
* emultempl/ppc64elf.em: Likewise.
2010-02-04 10:16:43 +01:00
|
|
|
&& elf_object_id (link_info.output_bfd) == ALPHA_ELF_DATA)
|
2005-05-30 01:16:09 +02:00
|
|
|
{
|
|
|
|
unsigned int num_plt;
|
|
|
|
lang_output_section_statement_type *os;
|
|
|
|
lang_output_section_statement_type *plt_os[2];
|
|
|
|
|
|
|
|
num_plt = 0;
|
|
|
|
for (os = &lang_output_section_statement.head->output_section_statement;
|
|
|
|
os != NULL;
|
|
|
|
os = os->next)
|
|
|
|
{
|
|
|
|
if (os->constraint == SPECIAL && strcmp (os->name, ".plt") == 0)
|
|
|
|
{
|
|
|
|
if (num_plt < 2)
|
|
|
|
plt_os[num_plt] = os;
|
|
|
|
++num_plt;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (num_plt == 2)
|
|
|
|
{
|
|
|
|
plt_os[0]->constraint = elf64_alpha_use_secureplt ? 0 : -1;
|
|
|
|
plt_os[1]->constraint = elf64_alpha_use_secureplt ? -1 : 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
gld${EMULATION_NAME}_after_open ();
|
|
|
|
}
|
|
|
|
|
2003-03-02 23:07:10 +01:00
|
|
|
static void
|
2003-06-27 02:38:25 +02:00
|
|
|
alpha_after_parse (void)
|
2003-03-02 23:07:10 +01:00
|
|
|
{
|
2005-05-30 01:16:09 +02:00
|
|
|
if (limit_32bit && !link_info.shared && !link_info.relocatable)
|
2003-03-02 23:07:10 +01:00
|
|
|
lang_section_start (".interp",
|
|
|
|
exp_binop ('+',
|
|
|
|
exp_intop (ALPHA_TEXT_START_32BIT),
|
2004-10-27 17:53:21 +02:00
|
|
|
exp_nameop (SIZEOF_HEADERS, NULL)),
|
|
|
|
NULL);
|
2009-09-13 09:19:18 +02:00
|
|
|
|
|
|
|
after_parse_default ();
|
2003-03-02 23:07:10 +01:00
|
|
|
}
|
|
|
|
|
2005-05-30 01:16:09 +02:00
|
|
|
static void
|
|
|
|
alpha_before_allocation (void)
|
|
|
|
{
|
|
|
|
/* Call main function; we're just extending it. */
|
|
|
|
gld${EMULATION_NAME}_before_allocation ();
|
|
|
|
|
|
|
|
/* Add -relax if -O, not -r, and not explicitly disabled. */
|
2009-11-26 14:45:25 +01:00
|
|
|
if (link_info.optimize && !link_info.relocatable && ! RELAXATION_DISABLED_BY_USER)
|
|
|
|
ENABLE_RELAXATION;
|
2005-05-30 01:16:09 +02:00
|
|
|
}
|
|
|
|
|
2003-03-02 23:07:10 +01:00
|
|
|
static void
|
2003-06-27 02:38:25 +02:00
|
|
|
alpha_finish (void)
|
2003-03-02 23:07:10 +01:00
|
|
|
{
|
2005-05-30 01:16:09 +02:00
|
|
|
if (limit_32bit)
|
2008-02-15 04:35:53 +01:00
|
|
|
elf_elfheader (link_info.output_bfd)->e_flags |= EF_ALPHA_32BIT;
|
2003-03-02 23:07:10 +01:00
|
|
|
|
2009-08-10 09:50:56 +02:00
|
|
|
finish_default ();
|
2003-03-02 23:07:10 +01:00
|
|
|
}
|
|
|
|
EOF
|
|
|
|
|
|
|
|
# Define some shell vars to insert bits of code into the standard elf
|
|
|
|
# parse_args and list_options functions.
|
|
|
|
#
|
|
|
|
PARSE_AND_LIST_PROLOGUE='
|
2005-05-30 01:16:09 +02:00
|
|
|
#define OPTION_TASO 300
|
2009-11-26 14:45:25 +01:00
|
|
|
#define OPTION_SECUREPLT (OPTION_TASO + 1)
|
2005-05-30 01:16:09 +02:00
|
|
|
#define OPTION_NO_SECUREPLT (OPTION_SECUREPLT + 1)
|
2003-03-02 23:07:10 +01:00
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_LONGOPTS='
|
2005-05-30 01:16:09 +02:00
|
|
|
{ "taso", no_argument, NULL, OPTION_TASO },
|
|
|
|
{ "secureplt", no_argument, NULL, OPTION_SECUREPLT },
|
|
|
|
{ "no-secureplt", no_argument, NULL, OPTION_NO_SECUREPLT },
|
2003-03-02 23:07:10 +01:00
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_OPTIONS='
|
2005-05-30 01:16:09 +02:00
|
|
|
fprintf (file, _("\
|
2007-08-17 15:50:48 +02:00
|
|
|
--taso Load executable in the lower 31-bit addressable\n\
|
|
|
|
virtual address range.\n\
|
|
|
|
--secureplt Force PLT in text segment.\n\
|
|
|
|
--no-secureplt Force PLT in data segment.\n\
|
2005-05-30 01:16:09 +02:00
|
|
|
"));
|
2003-03-02 23:07:10 +01:00
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_ARGS_CASES='
|
|
|
|
case OPTION_TASO:
|
2005-05-30 01:16:09 +02:00
|
|
|
limit_32bit = 1;
|
|
|
|
break;
|
|
|
|
case OPTION_SECUREPLT:
|
|
|
|
elf64_alpha_use_secureplt = TRUE;
|
|
|
|
break;
|
|
|
|
case OPTION_NO_SECUREPLT:
|
|
|
|
elf64_alpha_use_secureplt = FALSE;
|
2003-03-02 23:07:10 +01:00
|
|
|
break;
|
|
|
|
'
|
|
|
|
|
|
|
|
# Put these extra alpha routines in ld_${EMULATION_NAME}_emulation
|
|
|
|
#
|
2005-05-30 01:16:09 +02:00
|
|
|
LDEMUL_AFTER_OPEN=alpha_after_open
|
2003-03-02 23:07:10 +01:00
|
|
|
LDEMUL_AFTER_PARSE=alpha_after_parse
|
2005-05-30 01:16:09 +02:00
|
|
|
LDEMUL_BEFORE_ALLOCATION=alpha_before_allocation
|
2003-03-02 23:07:10 +01:00
|
|
|
LDEMUL_FINISH=alpha_finish
|