1999-05-03 09:29:11 +02:00
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# This shell script emits a C file. -*- C -*-
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2005-03-03 12:52:12 +01:00
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# Copyright 1991, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
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2009-09-02 09:25:43 +02:00
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# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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2000-07-28 03:33:14 +02:00
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#
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2007-07-06 16:09:45 +02:00
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# This file is part of the GNU Binutils.
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2000-07-28 03:33:14 +02:00
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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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2007-07-06 16:09:45 +02:00
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# the Free Software Foundation; either version 3 of the License, or
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2000-07-28 03:33:14 +02:00
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# (at your option) any later version.
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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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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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2007-07-06 16:09:45 +02:00
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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2000-07-28 03:33:14 +02:00
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#
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# This file is sourced from elf32.em, and defines extra hppa-elf
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# specific routines.
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#
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2007-07-19 21:56:10 +02:00
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fragment <<EOF
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2000-07-28 03:33:14 +02:00
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1999-05-03 09:29:11 +02:00
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#include "ldctor.h"
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2000-07-09 10:45:29 +02:00
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#include "elf32-hppa.h"
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1999-05-03 09:29:11 +02:00
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2000-07-09 10:45:29 +02:00
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/* Fake input file for stubs. */
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static lang_input_statement_type *stub_file;
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1999-05-03 09:29:11 +02:00
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2000-09-05 06:07:46 +02:00
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/* Type of import/export stubs to build. For a single sub-space model,
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we can build smaller import stubs and there is no need for export
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stubs. */
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static int multi_subspace = 0;
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1999-05-03 09:29:11 +02:00
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2005-03-29 13:07:38 +02:00
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/* Whether we need to call hppa_layout_sections_again. */
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static int need_laying_out = 0;
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2000-09-27 19:30:19 +02:00
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/* Maximum size of a group of input sections that can be handled by
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one stub section. A value of +/-1 indicates the bfd back-end
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should use a suitable default size. */
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2003-02-11 03:20:30 +01:00
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static bfd_signed_vma group_size = 1;
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1999-05-03 09:29:11 +02:00
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2001-01-14 08:39:01 +01:00
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/* Stops the linker merging .text sections on a relocatable link,
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and adds millicode library to the list of input files. */
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static void
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2003-06-27 02:38:25 +02:00
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hppaelf_after_parse (void)
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2001-01-14 08:39:01 +01:00
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{
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2003-06-25 08:40:27 +02:00
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if (link_info.relocatable)
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2001-01-14 08:39:01 +01:00
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lang_add_unique (".text");
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2005-01-21 05:15:59 +01:00
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/* Enable this once we split millicode stuff from libgcc:
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lang_add_input_file ("milli",
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lang_input_file_is_l_enum,
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NULL);
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*/
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2009-09-13 09:19:18 +02:00
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after_parse_default ();
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2001-01-14 08:39:01 +01:00
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}
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1999-05-03 09:29:11 +02:00
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/* This is called before the input files are opened. We create a new
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2000-07-09 10:45:29 +02:00
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fake input file to hold the stub sections. */
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1999-05-03 09:29:11 +02:00
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static void
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2003-06-27 02:38:25 +02:00
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hppaelf_create_output_section_statements (void)
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1999-05-03 09:29:11 +02:00
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{
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2008-02-15 10:03:02 +01:00
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if (!(bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour
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* 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
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&& (elf_object_id (link_info.output_bfd) == HPPA32_ELF_DATA
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|| elf_object_id (link_info.output_bfd) == HPPA64_ELF_DATA)))
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2003-12-01 07:28:56 +01:00
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return;
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1999-05-03 09:29:11 +02:00
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stub_file = lang_add_input_file ("linker stubs",
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lang_input_file_is_fake_enum,
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NULL);
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2008-02-15 04:35:53 +01:00
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stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
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1999-05-03 09:29:11 +02:00
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if (stub_file->the_bfd == NULL
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|| ! bfd_set_arch_mach (stub_file->the_bfd,
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2008-02-15 04:35:53 +01:00
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bfd_get_arch (link_info.output_bfd),
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bfd_get_mach (link_info.output_bfd)))
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1999-05-03 09:29:11 +02:00
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{
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einfo ("%X%P: can not create BFD %E\n");
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return;
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}
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2005-02-10 10:15:08 +01:00
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stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
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1999-05-03 09:29:11 +02:00
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ldlang_add_file (stub_file);
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}
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2000-07-09 10:45:29 +02:00
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struct hook_stub_info
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{
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lang_statement_list_type add;
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asection *input_section;
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};
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/* Traverse the linker tree to find the spot where the stub goes. */
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2002-11-30 09:39:46 +01:00
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static bfd_boolean
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2003-06-27 02:38:25 +02:00
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hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
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2000-07-09 10:45:29 +02:00
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{
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lang_statement_union_type *l;
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2002-11-30 09:39:46 +01:00
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bfd_boolean ret;
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2000-07-09 10:45:29 +02:00
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2001-08-20 04:14:50 +02:00
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for (; (l = *lp) != NULL; lp = &l->header.next)
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2000-07-09 10:45:29 +02:00
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{
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switch (l->header.type)
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{
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case lang_constructors_statement_enum:
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ret = hook_in_stub (info, &constructor_list.head);
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if (ret)
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return ret;
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break;
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case lang_output_section_statement_enum:
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ret = hook_in_stub (info,
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&l->output_section_statement.children.head);
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if (ret)
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return ret;
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break;
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case lang_wild_statement_enum:
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ret = hook_in_stub (info, &l->wild_statement.children.head);
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if (ret)
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return ret;
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break;
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case lang_group_statement_enum:
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ret = hook_in_stub (info, &l->group_statement.children.head);
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if (ret)
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return ret;
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break;
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case lang_input_section_enum:
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if (l->input_section.section == info->input_section)
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{
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/* We've found our section. Insert the stub immediately
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before its associated input section. */
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*lp = info->add.head;
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*(info->add.tail) = l;
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2002-11-30 09:39:46 +01:00
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return TRUE;
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2000-07-09 10:45:29 +02:00
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}
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break;
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case lang_data_statement_enum:
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case lang_reloc_statement_enum:
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case lang_object_symbols_statement_enum:
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case lang_output_statement_enum:
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case lang_target_statement_enum:
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case lang_input_statement_enum:
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case lang_assignment_statement_enum:
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case lang_padding_statement_enum:
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case lang_address_statement_enum:
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case lang_fill_statement_enum:
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break;
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default:
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FAIL ();
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break;
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}
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}
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2002-11-30 09:39:46 +01:00
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return FALSE;
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2000-07-09 10:45:29 +02:00
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}
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2000-07-28 03:33:14 +02:00
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2000-07-09 10:45:29 +02:00
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/* Call-back for elf32_hppa_size_stubs. */
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/* Create a new stub section, and arrange for it to be linked
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immediately before INPUT_SECTION. */
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static asection *
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2003-06-27 02:38:25 +02:00
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hppaelf_add_stub_section (const char *stub_sec_name, asection *input_section)
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2000-07-09 10:45:29 +02:00
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{
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asection *stub_sec;
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flagword flags;
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asection *output_section;
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const char *secname;
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lang_output_section_statement_type *os;
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struct hook_stub_info info;
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flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
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2000-09-05 06:07:46 +02:00
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| SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
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2008-07-07 02:46:51 +02:00
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stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
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stub_sec_name, flags);
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if (stub_sec == NULL)
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2000-07-09 10:45:29 +02:00
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goto err_ret;
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output_section = input_section->output_section;
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secname = bfd_get_section_name (output_section->owner, output_section);
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os = lang_output_section_find (secname);
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info.input_section = input_section;
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lang_list_init (&info.add);
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2005-11-17 01:10:05 +01:00
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lang_add_section (&info.add, stub_sec, os);
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2000-07-09 10:45:29 +02:00
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if (info.add.head == NULL)
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goto err_ret;
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if (hook_in_stub (&info, &os->children.head))
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return stub_sec;
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err_ret:
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einfo ("%X%P: can not make stub section: %E\n");
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return NULL;
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}
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2000-07-28 03:33:14 +02:00
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2000-07-09 10:45:29 +02:00
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/* Another call-back for elf32_hppa_size_stubs. */
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static void
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2003-06-27 02:38:25 +02:00
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hppaelf_layout_sections_again (void)
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2000-07-09 10:45:29 +02:00
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{
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/* If we have changed sizes of the stub sections, then we need
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to recalculate all the section offsets. This may mean we need to
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add even more stubs. */
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2006-06-20 04:22:16 +02:00
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gld${EMULATION_NAME}_map_segments (TRUE);
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need_laying_out = -1;
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2000-07-09 10:45:29 +02:00
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}
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2002-05-04 04:06:43 +02:00
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static void
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2003-06-27 02:38:25 +02:00
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build_section_lists (lang_statement_union_type *statement)
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2002-05-04 04:06:43 +02:00
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{
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2005-11-17 01:10:05 +01:00
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if (statement->header.type == lang_input_section_enum)
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2002-05-04 04:06:43 +02:00
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{
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2005-11-17 01:10:05 +01:00
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asection *i = statement->input_section.section;
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if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
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&& (i->flags & SEC_EXCLUDE) == 0
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&& i->output_section != NULL
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2008-02-15 04:35:53 +01:00
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&& i->output_section->owner == link_info.output_bfd)
|
2005-11-17 01:10:05 +01:00
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{
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elf32_hppa_next_input_section (&link_info, i);
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}
|
2002-05-04 04:06:43 +02:00
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}
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}
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|
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|
|
|
2009-08-10 09:50:56 +02:00
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|
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/* For the PA we use this opportunity to size and build linker stubs. */
|
1999-05-03 09:29:11 +02:00
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static void
|
2009-08-10 09:50:56 +02:00
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gld${EMULATION_NAME}_after_allocation (void)
|
1999-05-03 09:29:11 +02:00
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{
|
2009-08-10 09:50:56 +02:00
|
|
|
/* bfd_elf_discard_info just plays with data and debugging sections,
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ie. doesn't affect code size, so we can delay resizing the
|
2005-03-29 13:07:38 +02:00
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sections. It's likely we'll resize everything in the process of
|
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|
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adding stubs. */
|
2008-02-15 04:35:53 +01:00
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if (bfd_elf_discard_info (link_info.output_bfd, &link_info))
|
2005-03-29 13:07:38 +02:00
|
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need_laying_out = 1;
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|
|
|
|
2002-11-12 08:56:38 +01:00
|
|
|
/* If generating a relocatable output file, then we don't
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|
|
|
have to examine the relocs. */
|
2003-12-01 07:28:56 +01:00
|
|
|
if (stub_file != NULL && !link_info.relocatable)
|
1999-05-03 09:29:11 +02:00
|
|
|
{
|
2008-02-15 04:35:53 +01:00
|
|
|
int ret = elf32_hppa_setup_section_lists (link_info.output_bfd,
|
|
|
|
&link_info);
|
2002-11-12 08:56:38 +01:00
|
|
|
|
|
|
|
if (ret != 0)
|
2002-05-04 04:06:43 +02:00
|
|
|
{
|
2002-11-12 08:56:38 +01:00
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
einfo ("%X%P: can not size stub section: %E\n");
|
|
|
|
return;
|
|
|
|
}
|
2002-05-04 04:06:43 +02:00
|
|
|
|
2002-11-12 08:56:38 +01:00
|
|
|
lang_for_each_statement (build_section_lists);
|
2002-05-04 04:06:43 +02:00
|
|
|
|
2002-11-12 08:56:38 +01:00
|
|
|
/* Call into the BFD backend to do the real work. */
|
2008-02-15 04:35:53 +01:00
|
|
|
if (! elf32_hppa_size_stubs (link_info.output_bfd,
|
2002-11-12 08:56:38 +01:00
|
|
|
stub_file->the_bfd,
|
|
|
|
&link_info,
|
|
|
|
multi_subspace,
|
|
|
|
group_size,
|
|
|
|
&hppaelf_add_stub_section,
|
|
|
|
&hppaelf_layout_sections_again))
|
|
|
|
{
|
|
|
|
einfo ("%X%P: can not size stub section: %E\n");
|
|
|
|
return;
|
|
|
|
}
|
2002-05-04 04:06:43 +02:00
|
|
|
}
|
1999-05-03 09:29:11 +02:00
|
|
|
}
|
2000-07-09 10:45:29 +02:00
|
|
|
|
2006-06-20 04:22:16 +02:00
|
|
|
if (need_laying_out != -1)
|
|
|
|
gld${EMULATION_NAME}_map_segments (need_laying_out);
|
2005-03-29 13:07:38 +02:00
|
|
|
|
2003-06-25 08:40:27 +02:00
|
|
|
if (! link_info.relocatable)
|
2000-09-05 06:07:46 +02:00
|
|
|
{
|
2002-11-12 08:56:38 +01:00
|
|
|
/* Set the global data pointer. */
|
2008-02-15 04:35:53 +01:00
|
|
|
if (! elf32_hppa_set_gp (link_info.output_bfd, &link_info))
|
2002-11-12 08:56:38 +01:00
|
|
|
{
|
|
|
|
einfo ("%X%P: can not set gp\n");
|
|
|
|
return;
|
|
|
|
}
|
2000-09-05 06:07:46 +02:00
|
|
|
|
2002-11-12 08:56:38 +01:00
|
|
|
/* Now build the linker stubs. */
|
2003-12-01 07:28:56 +01:00
|
|
|
if (stub_file != NULL && stub_file->the_bfd->sections != NULL)
|
2002-11-12 08:56:38 +01:00
|
|
|
{
|
|
|
|
if (! elf32_hppa_build_stubs (&link_info))
|
2005-03-29 13:07:38 +02:00
|
|
|
einfo ("%X%P: can not build stubs: %E\n");
|
2002-11-12 08:56:38 +01:00
|
|
|
}
|
2000-07-09 10:45:29 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-09-05 06:07:46 +02:00
|
|
|
|
|
|
|
/* Avoid processing the fake stub_file in vercheck, stat_needed and
|
|
|
|
check_needed routines. */
|
|
|
|
|
2003-06-27 02:38:25 +02:00
|
|
|
static void (*real_func) (lang_input_statement_type *);
|
2000-09-05 06:07:46 +02:00
|
|
|
|
2003-06-27 02:38:25 +02:00
|
|
|
static void hppa_for_each_input_file_wrapper (lang_input_statement_type *l)
|
2000-09-05 06:07:46 +02:00
|
|
|
{
|
|
|
|
if (l != stub_file)
|
|
|
|
(*real_func) (l);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2003-06-27 02:38:25 +02:00
|
|
|
hppa_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
|
2000-09-05 06:07:46 +02:00
|
|
|
{
|
|
|
|
real_func = func;
|
|
|
|
lang_for_each_input_file (&hppa_for_each_input_file_wrapper);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define lang_for_each_input_file hppa_lang_for_each_input_file
|
|
|
|
|
1999-05-03 09:29:11 +02:00
|
|
|
EOF
|
|
|
|
|
2000-09-05 06:07:46 +02:00
|
|
|
# Define some shell vars to insert bits of code into the standard elf
|
|
|
|
# parse_args and list_options functions.
|
|
|
|
#
|
|
|
|
PARSE_AND_LIST_PROLOGUE='
|
|
|
|
#define OPTION_MULTI_SUBSPACE 301
|
2000-09-27 19:30:19 +02:00
|
|
|
#define OPTION_STUBGROUP_SIZE (OPTION_MULTI_SUBSPACE + 1)
|
2000-09-05 06:07:46 +02:00
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_LONGOPTS='
|
2000-09-27 19:30:19 +02:00
|
|
|
{ "multi-subspace", no_argument, NULL, OPTION_MULTI_SUBSPACE },
|
|
|
|
{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
|
2000-09-05 06:07:46 +02:00
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_OPTIONS='
|
|
|
|
fprintf (file, _("\
|
2007-08-17 15:50:48 +02:00
|
|
|
--multi-subspace Generate import and export stubs to support\n\
|
|
|
|
multiple sub-space shared libraries\n"
|
2000-09-27 19:30:19 +02:00
|
|
|
));
|
|
|
|
fprintf (file, _("\
|
2007-08-17 15:50:48 +02:00
|
|
|
--stub-group-size=N Maximum size of a group of input sections that\n\
|
|
|
|
can be handled by one stub section. A negative\n\
|
|
|
|
value locates all stubs before their branches\n\
|
|
|
|
(with a group size of -N), while a positive\n\
|
|
|
|
value allows two groups of input sections, one\n\
|
|
|
|
before, and one after each stub section.\n\
|
|
|
|
Values of +/-1 indicate the linker should\n\
|
|
|
|
choose suitable defaults.\n"
|
2000-09-05 06:07:46 +02:00
|
|
|
));
|
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_ARGS_CASES='
|
|
|
|
case OPTION_MULTI_SUBSPACE:
|
|
|
|
multi_subspace = 1;
|
|
|
|
break;
|
2000-09-27 19:30:19 +02:00
|
|
|
|
|
|
|
case OPTION_STUBGROUP_SIZE:
|
|
|
|
{
|
|
|
|
const char *end;
|
|
|
|
group_size = bfd_scan_vma (optarg, &end, 0);
|
|
|
|
if (*end)
|
|
|
|
einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
|
|
|
|
}
|
|
|
|
break;
|
2000-09-05 06:07:46 +02:00
|
|
|
'
|
|
|
|
|
|
|
|
# Put these extra hppaelf routines in ld_${EMULATION_NAME}_emulation
|
2000-07-28 03:33:14 +02:00
|
|
|
#
|
2001-01-14 08:39:01 +01:00
|
|
|
LDEMUL_AFTER_PARSE=hppaelf_after_parse
|
2009-08-10 09:50:56 +02:00
|
|
|
LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
|
2000-07-28 03:33:14 +02:00
|
|
|
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=hppaelf_create_output_section_statements
|