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|
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >e${EMULATION_NAME}.c <<EOF
/* This file is is generated by a shell script. DO NOT EDIT! */
/* emulate the original gld for the given ${EMULATION_NAME}
Copyright (C) 1991, 93, 96, 97, 1998 Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
This file is part of GLD, the Gnu Linker.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define TARGET_IS_${EMULATION_NAME}
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "getopt.h"
#include "ld.h"
#include "ldmain.h"
#include "ldemul.h"
#include "ldfile.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
static int gld${EMULATION_NAME}_parse_args PARAMS((int, char **));
static void gld${EMULATION_NAME}_list_options PARAMS ((FILE *));
/* If true, then interworking stubs which support calls to old, non-interworking
aware ARM code should be generated. */
static int support_old_code = 0;
#define OPTION_SUPPORT_OLD_CODE 300
static struct option longopts[] =
{
{"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
{NULL, no_argument, NULL, 0}
};
static void
gld${EMULATION_NAME}_list_options (file)
FILE * file;
{
fprintf (file, _(" --support-old-code Support interworking with old code\n"));
}
static int
gld${EMULATION_NAME}_parse_args (argc, argv)
int argc;
char ** argv;
{
int longind;
int optc;
int prevoptind = optind;
int prevopterr = opterr;
int wanterror;
static int lastoptind = -1;
if (lastoptind != optind)
opterr = 0;
wanterror = opterr;
lastoptind = optind;
optc = getopt_long_only (argc, argv, "-", longopts, & longind);
opterr = prevopterr;
switch (optc)
{
default:
if (wanterror)
xexit (1);
optind = prevoptind;
return 0;
case OPTION_SUPPORT_OLD_CODE:
support_old_code = 1;
break;
}
return 1;
}
static void
gld${EMULATION_NAME}_before_parse ()
{
#ifndef TARGET_ /* I.e., if not generic. */
ldfile_set_output_arch ("`echo ${ARCH}`");
#endif /* not TARGET_ */
}
/* This is called after the sections have been attached to output
sections, but before any sizes or addresses have been set. */
static void
gld${EMULATION_NAME}_before_allocation ()
{
/* we should be able to set the size of the interworking stub section */
/* Here we rummage through the found bfds to collect glue information */
/* FIXME: should this be based on a command line option? krk@cygnus.com */
{
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
if (! bfd_arm_process_before_allocation
(is->the_bfd, & link_info, support_old_code))
{
/* xgettext:c-format */
einfo (_("Errors encountered processing file %s"), is->filename);
}
}
}
/* We have seen it all. Allocate it, and carry on */
bfd_arm_allocate_interworking_sections (& link_info);
}
static void
gld${EMULATION_NAME}_after_open ()
{
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
break;
}
}
static char *
gld${EMULATION_NAME}_get_script (isfile)
int *isfile;
EOF
if test -n "$COMPILE_IN"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc="-f ${srcdir}/emultempl/stringify.sed"
cat >>e${EMULATION_NAME}.c <<EOF
{
*isfile = 0;
if (link_info.relocateable == true && config.build_constructors == true)
return
EOF
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xr >> 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.
cat >>e${EMULATION_NAME}.c <<EOF
{
*isfile = 1;
if (link_info.relocateable == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (link_info.relocateable == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>e${EMULATION_NAME}.c <<EOF
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
{
gld${EMULATION_NAME}_before_parse,
syslib_default,
hll_default,
after_parse_default,
gld${EMULATION_NAME}_after_open,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
gld${EMULATION_NAME}_before_allocation,
gld${EMULATION_NAME}_get_script,
"${EMULATION_NAME}",
"${OUTPUT_FORMAT}",
NULL, /* finish */
NULL, /* create output section statements */
NULL, /* open dynamic archive */
NULL, /* place orphan */
NULL, /* set_symbols */
gld${EMULATION_NAME}_parse_args,
NULL, /* unrecognised file */
gld${EMULATION_NAME}_list_options
};
EOF
|
