mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
3bcf55573d
(ldemul_parse_args): Return bfd_boolean. Formatting. * ldemul.h (ldemul_add_options, ldemul_handle_option): Declare. (ldemul_parse_args): Adjust. (struct ld_emulation_xfer_struct): Add add_options and handle_option. Return bfd_boolean from parse_args. * lexsup.c (parse_args): Malloc shortopts, longopts and really_longopts. Call ldemul_add_options and ldemul_handle_option. * emultempl/aix.em (gld${EMULATION_NAME}_add_options): Split out from gld${EMULATION_NAME}_parse_args. (gld${EMULATION_NAME}_handle_option): Likewise. (ld_${EMULATION_NAME}_emulation): Adjust initializer. * emultempl/armcoff.em: As for aix.em, but remove parse_args. * emultempl/beos.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/elf32.em: Likewise. Don't duplicate long options either. (gld${EMULATION_NAME}_add_sysroot): Prototype. * emultempl/armelf.em (PARSE_AND_LIST_LONGOPTS): Don't duplicate options. * emultempl/hppaelf.em (PARSE_AND_LIST_LONGOPTS): Likewise. * emultempl/ppc32elf.em (PARSE_AND_LIST_LONGOPTS): Likewise. * emultempl/ppc64elf.em (PARSE_AND_LIST_LONGOPTS): Likewise. * emultempl/armelf_oabi.em (ld_${EMULATION_NAME}_emulation): Adjust initializer. * emultempl/generic.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/mipsecoff.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/vanilla.em: Likewise. * emultempl/netbsd.em (gldnetbsd_before_parse): Prototype.
404 lines
11 KiB
Plaintext
404 lines
11 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
|
|
# Copyright 1991, 1993, 1994, 1997, 1999, 2000, 2001, 2002, 2003
|
|
# Free Software Foundation, Inc.
|
|
#
|
|
# This file is part of GLD, the Gnu Linker.
|
|
#
|
|
# 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 2 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; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
#
|
|
|
|
# This file is sourced from elf32.em, and defines extra hppa-elf
|
|
# specific routines.
|
|
#
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
#include "ldctor.h"
|
|
#include "elf32-hppa.h"
|
|
|
|
static void hppaelf_after_parse PARAMS ((void));
|
|
static void hppaelf_create_output_section_statements PARAMS ((void));
|
|
static asection *hppaelf_add_stub_section
|
|
PARAMS ((const char *, asection *));
|
|
static void hppaelf_layout_sections_again PARAMS ((void));
|
|
static void gld${EMULATION_NAME}_finish PARAMS ((void));
|
|
static void build_section_lists PARAMS ((lang_statement_union_type *));
|
|
|
|
|
|
/* Fake input file for stubs. */
|
|
static lang_input_statement_type *stub_file;
|
|
|
|
/* Type of import/export stubs to build. For a single sub-space model,
|
|
we can build smaller import stubs and there is no need for export
|
|
stubs. */
|
|
static int multi_subspace = 0;
|
|
|
|
/* Whether we need to call hppa_layout_sections_again. */
|
|
static int need_laying_out = 0;
|
|
|
|
/* Maximum size of a group of input sections that can be handled by
|
|
one stub section. A value of +/-1 indicates the bfd back-end
|
|
should use a suitable default size. */
|
|
static bfd_signed_vma group_size = 1;
|
|
|
|
/* Stops the linker merging .text sections on a relocatable link,
|
|
and adds millicode library to the list of input files. */
|
|
|
|
static void
|
|
hppaelf_after_parse ()
|
|
{
|
|
if (link_info.relocateable)
|
|
lang_add_unique (".text");
|
|
#if 0 /* Enable this once we split millicode stuff from libgcc. */
|
|
else
|
|
lang_add_input_file ("milli",
|
|
lang_input_file_is_l_enum,
|
|
NULL);
|
|
#endif
|
|
}
|
|
|
|
/* This is called before the input files are opened. We create a new
|
|
fake input file to hold the stub sections. */
|
|
|
|
static void
|
|
hppaelf_create_output_section_statements ()
|
|
{
|
|
stub_file = lang_add_input_file ("linker stubs",
|
|
lang_input_file_is_fake_enum,
|
|
NULL);
|
|
stub_file->the_bfd = bfd_create ("linker stubs", output_bfd);
|
|
if (stub_file->the_bfd == NULL
|
|
|| ! bfd_set_arch_mach (stub_file->the_bfd,
|
|
bfd_get_arch (output_bfd),
|
|
bfd_get_mach (output_bfd)))
|
|
{
|
|
einfo ("%X%P: can not create BFD %E\n");
|
|
return;
|
|
}
|
|
|
|
ldlang_add_file (stub_file);
|
|
}
|
|
|
|
|
|
struct hook_stub_info
|
|
{
|
|
lang_statement_list_type add;
|
|
asection *input_section;
|
|
};
|
|
|
|
/* Traverse the linker tree to find the spot where the stub goes. */
|
|
|
|
static bfd_boolean hook_in_stub
|
|
PARAMS ((struct hook_stub_info *, lang_statement_union_type **));
|
|
|
|
static bfd_boolean
|
|
hook_in_stub (info, lp)
|
|
struct hook_stub_info *info;
|
|
lang_statement_union_type **lp;
|
|
{
|
|
lang_statement_union_type *l;
|
|
bfd_boolean ret;
|
|
|
|
for (; (l = *lp) != NULL; lp = &l->header.next)
|
|
{
|
|
switch (l->header.type)
|
|
{
|
|
case lang_constructors_statement_enum:
|
|
ret = hook_in_stub (info, &constructor_list.head);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
|
|
case lang_output_section_statement_enum:
|
|
ret = hook_in_stub (info,
|
|
&l->output_section_statement.children.head);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
|
|
case lang_wild_statement_enum:
|
|
ret = hook_in_stub (info, &l->wild_statement.children.head);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
|
|
case lang_group_statement_enum:
|
|
ret = hook_in_stub (info, &l->group_statement.children.head);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
|
|
case lang_input_section_enum:
|
|
if (l->input_section.section == info->input_section)
|
|
{
|
|
/* We've found our section. Insert the stub immediately
|
|
before its associated input section. */
|
|
*lp = info->add.head;
|
|
*(info->add.tail) = l;
|
|
return TRUE;
|
|
}
|
|
break;
|
|
|
|
case lang_data_statement_enum:
|
|
case lang_reloc_statement_enum:
|
|
case lang_object_symbols_statement_enum:
|
|
case lang_output_statement_enum:
|
|
case lang_target_statement_enum:
|
|
case lang_input_statement_enum:
|
|
case lang_assignment_statement_enum:
|
|
case lang_padding_statement_enum:
|
|
case lang_address_statement_enum:
|
|
case lang_fill_statement_enum:
|
|
break;
|
|
|
|
default:
|
|
FAIL ();
|
|
break;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/* Call-back for elf32_hppa_size_stubs. */
|
|
|
|
/* Create a new stub section, and arrange for it to be linked
|
|
immediately before INPUT_SECTION. */
|
|
|
|
static asection *
|
|
hppaelf_add_stub_section (stub_sec_name, input_section)
|
|
const char *stub_sec_name;
|
|
asection *input_section;
|
|
{
|
|
asection *stub_sec;
|
|
flagword flags;
|
|
asection *output_section;
|
|
const char *secname;
|
|
lang_output_section_statement_type *os;
|
|
struct hook_stub_info info;
|
|
|
|
stub_sec = bfd_make_section_anyway (stub_file->the_bfd, stub_sec_name);
|
|
if (stub_sec == NULL)
|
|
goto err_ret;
|
|
|
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
|
|
| SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
|
|
if (!bfd_set_section_flags (stub_file->the_bfd, stub_sec, flags))
|
|
goto err_ret;
|
|
|
|
output_section = input_section->output_section;
|
|
secname = bfd_get_section_name (output_section->owner, output_section);
|
|
os = lang_output_section_find (secname);
|
|
|
|
info.input_section = input_section;
|
|
lang_list_init (&info.add);
|
|
lang_add_section (&info.add, stub_sec, os, stub_file);
|
|
|
|
if (info.add.head == NULL)
|
|
goto err_ret;
|
|
|
|
if (hook_in_stub (&info, &os->children.head))
|
|
return stub_sec;
|
|
|
|
err_ret:
|
|
einfo ("%X%P: can not make stub section: %E\n");
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Another call-back for elf32_hppa_size_stubs. */
|
|
|
|
static void
|
|
hppaelf_layout_sections_again ()
|
|
{
|
|
/* If we have changed sizes of the stub sections, then we need
|
|
to recalculate all the section offsets. This may mean we need to
|
|
add even more stubs. */
|
|
need_laying_out = 0;
|
|
|
|
lang_reset_memory_regions ();
|
|
|
|
/* Resize the sections. */
|
|
lang_size_sections (stat_ptr->head, abs_output_section,
|
|
&stat_ptr->head, 0, (bfd_vma) 0, NULL, TRUE);
|
|
|
|
/* Redo special stuff. */
|
|
ldemul_after_allocation ();
|
|
|
|
/* Do the assignments again. */
|
|
lang_do_assignments (stat_ptr->head, abs_output_section,
|
|
(fill_type *) 0, (bfd_vma) 0);
|
|
}
|
|
|
|
|
|
static void
|
|
build_section_lists (statement)
|
|
lang_statement_union_type *statement;
|
|
{
|
|
if (statement->header.type == lang_input_section_enum
|
|
&& !statement->input_section.ifile->just_syms_flag
|
|
&& statement->input_section.section->output_section != NULL
|
|
&& statement->input_section.section->output_section->owner == output_bfd)
|
|
{
|
|
elf32_hppa_next_input_section (&link_info,
|
|
statement->input_section.section);
|
|
}
|
|
}
|
|
|
|
|
|
/* Final emulation specific call. For the PA we use this opportunity
|
|
to build linker stubs. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_finish ()
|
|
{
|
|
/* bfd_elf32_discard_info just plays with debugging sections,
|
|
ie. doesn't affect any code, so we can delay resizing the
|
|
sections. It's likely we'll resize everything in the process of
|
|
adding stubs. */
|
|
if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
|
|
need_laying_out = 1;
|
|
|
|
/* If generating a relocatable output file, then we don't
|
|
have to examine the relocs. */
|
|
if (! link_info.relocateable)
|
|
{
|
|
int ret = elf32_hppa_setup_section_lists (output_bfd, &link_info);
|
|
|
|
if (ret != 0)
|
|
{
|
|
if (ret < 0)
|
|
{
|
|
einfo ("%X%P: can not size stub section: %E\n");
|
|
return;
|
|
}
|
|
|
|
lang_for_each_statement (build_section_lists);
|
|
|
|
/* Call into the BFD backend to do the real work. */
|
|
if (! elf32_hppa_size_stubs (output_bfd,
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (need_laying_out)
|
|
hppaelf_layout_sections_again ();
|
|
|
|
if (! link_info.relocateable)
|
|
{
|
|
/* Set the global data pointer. */
|
|
if (! elf32_hppa_set_gp (output_bfd, &link_info))
|
|
{
|
|
einfo ("%X%P: can not set gp\n");
|
|
return;
|
|
}
|
|
|
|
/* Now build the linker stubs. */
|
|
if (stub_file->the_bfd->sections != NULL)
|
|
{
|
|
if (! elf32_hppa_build_stubs (&link_info))
|
|
einfo ("%X%P: can not build stubs: %E\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Avoid processing the fake stub_file in vercheck, stat_needed and
|
|
check_needed routines. */
|
|
|
|
static void hppa_for_each_input_file_wrapper
|
|
PARAMS ((lang_input_statement_type *));
|
|
static void hppa_lang_for_each_input_file
|
|
PARAMS ((void (*) (lang_input_statement_type *)));
|
|
|
|
static void (*real_func) PARAMS ((lang_input_statement_type *));
|
|
|
|
static void hppa_for_each_input_file_wrapper (l)
|
|
lang_input_statement_type *l;
|
|
{
|
|
if (l != stub_file)
|
|
(*real_func) (l);
|
|
}
|
|
|
|
static void
|
|
hppa_lang_for_each_input_file (func)
|
|
void (*func) PARAMS ((lang_input_statement_type *));
|
|
{
|
|
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
|
|
|
|
EOF
|
|
|
|
# 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
|
|
#define OPTION_STUBGROUP_SIZE (OPTION_MULTI_SUBSPACE + 1)
|
|
'
|
|
|
|
PARSE_AND_LIST_LONGOPTS='
|
|
{ "multi-subspace", no_argument, NULL, OPTION_MULTI_SUBSPACE },
|
|
{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
|
|
'
|
|
|
|
PARSE_AND_LIST_OPTIONS='
|
|
fprintf (file, _("\
|
|
--multi-subspace Generate import and export stubs to support\n\
|
|
multiple sub-space shared libraries\n"
|
|
));
|
|
fprintf (file, _("\
|
|
--stub-group-size=N Maximum size of a group of input sections that can be\n\
|
|
handled by one stub section. A negative value\n\
|
|
locates all stubs before their branches (with a\n\
|
|
group size of -N), while a positive value allows\n\
|
|
two groups of input sections, one before, and one\n\
|
|
after each stub section. Values of +/-1 indicate\n\
|
|
the linker should choose suitable defaults.\n"
|
|
));
|
|
'
|
|
|
|
PARSE_AND_LIST_ARGS_CASES='
|
|
case OPTION_MULTI_SUBSPACE:
|
|
multi_subspace = 1;
|
|
break;
|
|
|
|
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;
|
|
'
|
|
|
|
# Put these extra hppaelf routines in ld_${EMULATION_NAME}_emulation
|
|
#
|
|
LDEMUL_AFTER_PARSE=hppaelf_after_parse
|
|
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
|
|
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=hppaelf_create_output_section_statements
|