158 lines
4.9 KiB
Text
158 lines
4.9 KiB
Text
# This shell script emits a C file. -*- C -*-
|
|
# Copyright (C) 2006-2022 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.
|
|
|
|
fragment <<EOF
|
|
|
|
/* --- \begin{pdp11.em} */
|
|
#include "getopt.h"
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_before_parse (void)
|
|
{
|
|
ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
|
|
/* for PDP11 Unix compatibility, default to --omagic */
|
|
config.magic_demand_paged = false;
|
|
config.text_read_only = false;
|
|
}
|
|
|
|
/* PDP11 specific options. */
|
|
#define OPTION_IMAGIC 301
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_add_options
|
|
(int ns ATTRIBUTE_UNUSED,
|
|
char **shortopts,
|
|
int nl,
|
|
struct option **longopts,
|
|
int nrl ATTRIBUTE_UNUSED,
|
|
struct option **really_longopts ATTRIBUTE_UNUSED)
|
|
{
|
|
static const char xtra_short[] = "z";
|
|
static const struct option xtra_long[] =
|
|
{
|
|
{"imagic", no_argument, NULL, OPTION_IMAGIC},
|
|
{NULL, no_argument, NULL, 0}
|
|
};
|
|
|
|
*shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
|
|
memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
|
|
*longopts
|
|
= xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
|
|
memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_list_options (FILE *file)
|
|
{
|
|
fprintf (file, _(" -N, --omagic Do not make text readonly, do not page align data (default)\n"));
|
|
fprintf (file, _(" -n, --nmagic Make text readonly, align data to next page\n"));
|
|
fprintf (file, _(" -z, --imagic Make text readonly, separate instruction and data spaces\n"));
|
|
fprintf (file, _(" --no-omagic Equivalent to --nmagic\n"));
|
|
}
|
|
|
|
static bool
|
|
gld${EMULATION_NAME}_handle_option (int optc)
|
|
{
|
|
switch (optc)
|
|
{
|
|
default:
|
|
return false;
|
|
|
|
case 'z':
|
|
case OPTION_IMAGIC:
|
|
link_info.separate_code = 1;
|
|
/* The --imagic format causes the .text and .data sections to occupy the
|
|
same memory addresses in separate spaces, so don't check overlap. */
|
|
command_line.check_section_addresses = 0;
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* We need a special case to prepare an additional linker script for option
|
|
* --imagic where the .data section starts at address 0 rather than directly
|
|
* following the .text section or being aligned to the next page after the
|
|
* .text section. */
|
|
static char *
|
|
gld${EMULATION_NAME}_get_script (int *isfile)
|
|
EOF
|
|
|
|
if test x"$COMPILE_IN" = xyes
|
|
then
|
|
# Scripts compiled in.
|
|
|
|
# sed commands to quote an ld script as a C string.
|
|
sc="-f stringify.sed"
|
|
|
|
fragment <<EOF
|
|
{
|
|
*isfile = 0;
|
|
|
|
if (bfd_link_relocatable (&link_info) && config.build_constructors)
|
|
return
|
|
EOF
|
|
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xe >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
|
echo ' ; else return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
|
echo '; }' >> e${EMULATION_NAME}.c
|
|
|
|
else
|
|
# Scripts read from the filesystem.
|
|
|
|
fragment <<EOF
|
|
{
|
|
*isfile = 1;
|
|
|
|
if (bfd_link_relocatable (&link_info) && config.build_constructors)
|
|
return "ldscripts/${EMULATION_NAME}.xu";
|
|
else if (bfd_link_relocatable (&link_info))
|
|
return "ldscripts/${EMULATION_NAME}.xr";
|
|
else if (link_info.separate_code)
|
|
return "ldscripts/${EMULATION_NAME}.xe";
|
|
else if (!config.text_read_only)
|
|
return "ldscripts/${EMULATION_NAME}.xbn";
|
|
else if (!config.magic_demand_paged)
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
|
else
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
|
}
|
|
EOF
|
|
fi
|
|
|
|
fragment <<EOF
|
|
|
|
/* --- \end{pdp11.em} */
|
|
|
|
EOF
|
|
|
|
LDEMUL_BEFORE_PARSE=gld"$EMULATION_NAME"_before_parse
|
|
LDEMUL_ADD_OPTIONS=gld"$EMULATION_NAME"_add_options
|
|
LDEMUL_HANDLE_OPTION=gld"$EMULATION_NAME"_handle_option
|
|
LDEMUL_LIST_OPTIONS=gld"$EMULATION_NAME"_list_options
|
|
LDEMUL_GET_SCRIPT=gld"$EMULATION_NAME"_get_script
|