5e2f15758b
* ldfile.h (ldfile_set_output_arch): Ditto.
* emultempl/aix.em (gld${EMULATION_NAME}_before_parse): Use
ldfile_set_output_arch.
* emultempl/beos.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/mipsecoff.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/pe.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/sunos.em (gld${EMULATION_NAME}_before_parse): Ditto.
* ldgram.y: Adjust ldfile_set_output_arch call.
* emultempl/armcoff.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/armelf_oabi.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/generic.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/gld960c.em (gld960_set_output_arch): Ditto.
* emultempl/m68kcoff.em (gld${EMULATION_NAME}_before_parse): Ditto.
* emultempl/ticoff.em (gld${EMULATION_NAME}_before_parse): Ditto.
278 lines
8.0 KiB
Plaintext
278 lines
8.0 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
|
||
# It does some substitutions.
|
||
cat >e${EMULATION_NAME}.c <<EOF
|
||
/* This file is is generated by a shell script. DO NOT EDIT! */
|
||
|
||
/* emulate the original gld for the given ${EMULATION_NAME}
|
||
Copyright 1991, 1993, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
|
||
2004 Free Software Foundation, Inc.
|
||
Written by Steve Chamberlain steve@cygnus.com
|
||
|
||
This file is part of GLD, the Gnu Linker.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
||
#define TARGET_IS_${EMULATION_NAME}
|
||
|
||
#include "bfd.h"
|
||
#include "sysdep.h"
|
||
#include "bfdlink.h"
|
||
#include "getopt.h"
|
||
|
||
#include "ld.h"
|
||
#include "ldmain.h"
|
||
#include "ldmisc.h"
|
||
|
||
#include "ldexp.h"
|
||
#include "ldlang.h"
|
||
#include "ldfile.h"
|
||
#include "ldemul.h"
|
||
|
||
/* If TRUE, then interworking stubs which support calls to old,
|
||
non-interworking aware ARM code should be generated. */
|
||
|
||
static int support_old_code = 0;
|
||
static char * thumb_entry_symbol = NULL;
|
||
|
||
#define OPTION_SUPPORT_OLD_CODE 300
|
||
#define OPTION_THUMB_ENTRY 301
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_add_options
|
||
(int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
|
||
struct option **longopts, int nrl ATTRIBUTE_UNUSED,
|
||
struct option **really_longopts ATTRIBUTE_UNUSED)
|
||
{
|
||
static const struct option xtra_long[] = {
|
||
{"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
|
||
{"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
|
||
{NULL, no_argument, NULL, 0}
|
||
};
|
||
|
||
*longopts = xrealloc (*longopts,
|
||
nl * sizeof (struct option) + sizeof (xtra_long));
|
||
memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
|
||
}
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_list_options (FILE *file)
|
||
{
|
||
fprintf (file, _(" --support-old-code Support interworking with old code\n"));
|
||
fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
|
||
}
|
||
|
||
static bfd_boolean
|
||
gld${EMULATION_NAME}_handle_option (int optc)
|
||
{
|
||
switch (optc)
|
||
{
|
||
default:
|
||
return FALSE;
|
||
|
||
case OPTION_SUPPORT_OLD_CODE:
|
||
support_old_code = 1;
|
||
break;
|
||
|
||
case OPTION_THUMB_ENTRY:
|
||
thumb_entry_symbol = optarg;
|
||
break;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_before_parse (void)
|
||
{
|
||
#ifndef TARGET_ /* I.e., if not generic. */
|
||
ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
|
||
#endif /* not TARGET_ */
|
||
}
|
||
|
||
/* This is called after the sections have been attached to output
|
||
sections, but before any sizes or addresses have been set. */
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_before_allocation (void)
|
||
{
|
||
/* 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${EMULATION_NAME}_after_open (void)
|
||
{
|
||
if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
|
||
{
|
||
/* The arm backend needs special fields in the output hash structure.
|
||
These will only be created if the output format is an arm format,
|
||
hence we do not support linking and changing output formats at the
|
||
same time. Use a link followed by objcopy to change output formats. */
|
||
einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
|
||
return;
|
||
}
|
||
|
||
{
|
||
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
||
{
|
||
if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gld${EMULATION_NAME}_finish (void)
|
||
{
|
||
struct bfd_link_hash_entry * h;
|
||
|
||
if (thumb_entry_symbol == NULL)
|
||
return;
|
||
|
||
h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
|
||
FALSE, FALSE, TRUE);
|
||
|
||
if (h != (struct bfd_link_hash_entry *) NULL
|
||
&& (h->type == bfd_link_hash_defined
|
||
|| h->type == bfd_link_hash_defweak)
|
||
&& h->u.def.section->output_section != NULL)
|
||
{
|
||
static char buffer[32];
|
||
bfd_vma val;
|
||
|
||
/* Special procesing is required for a Thumb entry symbol. The
|
||
bottom bit of its address must be set. */
|
||
val = (h->u.def.value
|
||
+ bfd_get_section_vma (output_bfd,
|
||
h->u.def.section->output_section)
|
||
+ h->u.def.section->output_offset);
|
||
|
||
val |= 1;
|
||
|
||
/* Now convert this value into a string and store it in entry_symbol
|
||
where the lang_finish() function will pick it up. */
|
||
buffer[0] = '0';
|
||
buffer[1] = 'x';
|
||
|
||
sprintf_vma (buffer + 2, val);
|
||
|
||
if (entry_symbol.name != NULL && entry_from_cmdline)
|
||
einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
|
||
thumb_entry_symbol, entry_symbol.name);
|
||
entry_symbol.name = buffer;
|
||
}
|
||
else
|
||
einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
|
||
}
|
||
|
||
static char *
|
||
gld${EMULATION_NAME}_get_script (int *isfile)
|
||
EOF
|
||
|
||
if test -n "$COMPILE_IN"
|
||
then
|
||
# Scripts compiled in.
|
||
|
||
# sed commands to quote an ld script as a C string.
|
||
sc="-f stringify.sed"
|
||
|
||
cat >>e${EMULATION_NAME}.c <<EOF
|
||
{
|
||
*isfile = 0;
|
||
|
||
if (link_info.relocatable && config.build_constructors)
|
||
return
|
||
EOF
|
||
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
||
echo ' ; else if (link_info.relocatable) return' >> e${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${EMULATION_NAME}.c <<EOF
|
||
{
|
||
*isfile = 1;
|
||
|
||
if (link_info.relocatable && config.build_constructors)
|
||
return "ldscripts/${EMULATION_NAME}.xu";
|
||
else if (link_info.relocatable)
|
||
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}",
|
||
gld${EMULATION_NAME}_finish,
|
||
NULL, /* create output section statements */
|
||
NULL, /* open dynamic archive */
|
||
NULL, /* place orphan */
|
||
NULL, /* set symbols */
|
||
NULL, /* parse_args */
|
||
gld${EMULATION_NAME}_add_options,
|
||
gld${EMULATION_NAME}_handle_option,
|
||
NULL, /* unrecognised file */
|
||
gld${EMULATION_NAME}_list_options,
|
||
NULL, /* recognized file */
|
||
NULL, /* find_potential_libraries */
|
||
NULL /* new_vers_pattern */
|
||
};
|
||
EOF
|