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|
# This shell script emits a C file. -*- C -*-
# Copyright (C) 2010-2021 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# 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; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# This file is sourced from generic.em.
fragment <<EOF
#include "getopt.h"
static void
gld${EMULATION_NAME}_before_parse (void)
{
ldfile_set_output_arch ("${ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
input_flags.dynamic = true;
config.has_shared = false; /* Not yet. */
/* For ia64, harmless for alpha. */
link_info.emit_hash = false;
link_info.spare_dynamic_tags = 0;
}
/* This is called before the input files are opened. We add the
standard library. */
static void
gld${EMULATION_NAME}_create_output_section_statements (void)
{
lang_add_input_file ("imagelib", lang_input_file_is_l_enum, NULL);
lang_add_input_file ("starlet", lang_input_file_is_l_enum, NULL);
lang_add_input_file ("sys\$public_vectors", lang_input_file_is_l_enum, NULL);
}
/* Try to open a dynamic archive. This is where we know that VMS
shared images (dynamic libraries) have an extension of .exe. */
static bool
gld${EMULATION_NAME}_open_dynamic_archive (const char *arch ATTRIBUTE_UNUSED,
search_dirs_type *search,
lang_input_statement_type *entry)
{
char *string;
if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
return false;
string = (char *) xmalloc (strlen (search->name)
+ strlen (entry->filename)
+ sizeof "/.exe");
sprintf (string, "%s/%s.exe", search->name, entry->filename);
if (! ldfile_try_open_bfd (string, entry))
{
free (string);
return false;
}
entry->filename = string;
return true;
}
static int
gld${EMULATION_NAME}_find_potential_libraries
(char *name, lang_input_statement_type *entry)
{
return ldfile_open_file_search (name, entry, "", ".olb");
}
/* Place an orphan section. We use this to put random OVR sections.
Much borrowed from elf.em. */
static lang_output_section_statement_type *
vms_place_orphan (asection *s,
const char *secname ATTRIBUTE_UNUSED,
int constraint ATTRIBUTE_UNUSED)
{
static struct orphan_save hold_data =
{
"\$DATA\$",
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
0, 0, 0, 0
};
/* We have nothing to say for anything other than a final link or an excluded
section. */
if (bfd_link_relocatable (&link_info)
|| (s->flags & (SEC_EXCLUDE | SEC_LOAD)) != SEC_LOAD)
return NULL;
/* FIXME: we should place sections by VMS program section flags. */
/* Only handle data sections. */
if ((s->flags & SEC_DATA) == 0)
return NULL;
if (hold_data.os == NULL)
hold_data.os = lang_output_section_find (hold_data.name);
if (hold_data.os != NULL)
{
lang_add_section (&hold_data.os->children, s, NULL, NULL, hold_data.os);
return hold_data.os;
}
else
return NULL;
}
/* VMS specific options. */
#define OPTION_IDENTIFICATION (300 + 1)
static void
gld${EMULATION_NAME}_add_options
(int ns ATTRIBUTE_UNUSED,
char **shortopts ATTRIBUTE_UNUSED,
int nl,
struct option **longopts,
int nrl ATTRIBUTE_UNUSED,
struct option **really_longopts ATTRIBUTE_UNUSED)
{
static const struct option xtra_long[] =
{
{"identification", required_argument, NULL, OPTION_IDENTIFICATION},
{NULL, no_argument, NULL, 0}
};
*longopts
= xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
}
static void
gld${EMULATION_NAME}_list_options (FILE *file)
{
fprintf (file, _(" --identification <string> Set the identification of the output\n"));
}
static bool
gld${EMULATION_NAME}_handle_option (int optc)
{
switch (optc)
{
default:
return false;
case OPTION_IDENTIFICATION:
/* Currently ignored. */
break;
}
return true;
}
EOF
if test "$OUTPUT_FORMAT" = "elf64-ia64-vms"; then
fragment <<EOF
#include "elf-bfd.h"
#include "ldelfgen.h"
EOF
source_em ${srcdir}/emultempl/elf-generic.em
fragment <<EOF
/* This is called after the sections have been attached to output
sections, but before any sizes or addresses have been set. */
static void
gld${EMULATION_NAME}_before_allocation (void)
{
const struct elf_backend_data *bed;
if (!is_elf_hash_table (link_info.hash))
return;
bed = get_elf_backend_data (link_info.output_bfd);
/* The backend must work out the sizes of all the other dynamic
sections. */
if (elf_hash_table (&link_info)->dynamic_sections_created
&& bed->elf_backend_size_dynamic_sections
&& ! (*bed->elf_backend_size_dynamic_sections) (link_info.output_bfd,
&link_info))
einfo (_("%F%P: failed to set dynamic section sizes: %E\n"));
before_allocation_default ();
}
static void
gld${EMULATION_NAME}_after_allocation (void)
{
int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
if (need_layout < 0)
einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
else
ldelf_map_segments (need_layout);
}
static void
gld${EMULATION_NAME}_after_parse (void)
{
link_info.relax_pass = 2;
after_parse_default ();
}
EOF
LDEMUL_BEFORE_ALLOCATION=gld"$EMULATION_NAME"_before_allocation
LDEMUL_AFTER_ALLOCATION=gld"$EMULATION_NAME"_after_allocation
LDEMUL_AFTER_PARSE=gld${EMULATION_NAME}_after_parse
source_em ${srcdir}/emultempl/needrelax.em
fi
LDEMUL_PLACE_ORPHAN=vms_place_orphan
LDEMUL_BEFORE_PARSE=gld"$EMULATION_NAME"_before_parse
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=gld"$EMULATION_NAME"_create_output_section_statements
LDEMUL_FIND_POTENTIAL_LIBRARIES=gld"$EMULATION_NAME"_find_potential_libraries
LDEMUL_OPEN_DYNAMIC_ARCHIVE=gld"$EMULATION_NAME"_open_dynamic_archive
LDEMUL_ADD_OPTIONS=gld"$EMULATION_NAME"_add_options
LDEMUL_HANDLE_OPTION=gld"$EMULATION_NAME"_handle_option
LDEMUL_LIST_OPTIONS=gld"$EMULATION_NAME"_list_options
|
