[deliverable/binutils-gdb.git] / ld / emultempl / m68kcoff.em

# 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! */

/* Handle embedded relocs for m68k.
   Copyright 2000, 2002, 2003 Free Software Foundation, Inc.
   Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on generic.em
   by Steve Chamberlain <steve@cygnus.com>, embedded relocs code based on
   mipsecoff.em by Ian Lance Taylor <ian@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 "ld.h"
#include "ldmain.h"
#include "ldfile.h"
#include "ldemul.h"
#include "ldmisc.h"

static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
static void gld${EMULATION_NAME}_after_open PARAMS ((void));
static void check_sections PARAMS ((bfd *, asection *, PTR));
static void gld${EMULATION_NAME}_after_allocation PARAMS ((void));
static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));

static void
gld${EMULATION_NAME}_before_parse ()
{
#ifndef TARGET_			/* I.e., if not generic.  */
  ldfile_set_output_arch ("`echo ${ARCH}`");
#endif /* not TARGET_ */
}

/* This function is run after all the input files have been opened.
   We create a .emreloc section for each input file with a non zero
   .data section.  The BFD backend will fill in these sections with
   magic numbers which can be used to relocate the data section at run
   time.  */

static void
gld${EMULATION_NAME}_after_open ()
{
  bfd *abfd;

  if (! command_line.embedded_relocs
      || link_info.relocatable)
    return;

  for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
    {
      asection *datasec;

      /* As first-order business, make sure that each input BFD is COFF. It
         better be, as we are directly calling a COFF backend function.  */
      if (bfd_get_flavour (abfd) != bfd_target_coff_flavour)
	einfo ("%F%B: all input objects must be COFF for --embedded-relocs\n");

      datasec = bfd_get_section_by_name (abfd, ".data");

      /* Note that we assume that the reloc_count field has already
         been set up.  We could call bfd_get_reloc_upper_bound, but
         that returns the size of a memory buffer rather than a reloc
         count.  We do not want to call bfd_canonicalize_reloc,
         because although it would always work it would force us to
         read in the relocs into BFD canonical form, which would waste
         a significant amount of time and memory.  */
      if (datasec != NULL && datasec->reloc_count > 0)
	{
	  asection *relsec;

	  relsec = bfd_make_section (abfd, ".emreloc");
	  if (relsec == NULL
	      || ! bfd_set_section_flags (abfd, relsec,
					  (SEC_ALLOC
					   | SEC_LOAD
					   | SEC_HAS_CONTENTS
					   | SEC_IN_MEMORY))
	      || ! bfd_set_section_alignment (abfd, relsec, 2)
	      || ! bfd_set_section_size (abfd, relsec,
					 datasec->reloc_count * 12))
	    einfo ("%F%B: can not create .emreloc section: %E\n");
	}

      /* Double check that all other data sections are empty, as is
         required for embedded PIC code.  */
      bfd_map_over_sections (abfd, check_sections, (PTR) datasec);
    }
}

/* Check that of the data sections, only the .data section has
   relocs.  This is called via bfd_map_over_sections.  */

static void
check_sections (abfd, sec, datasec)
     bfd *abfd;
     asection *sec;
     PTR datasec;
{
  if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
      && sec != (asection *) datasec
      && sec->reloc_count != 0)
    einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
	   abfd, bfd_get_section_name (abfd, sec));
}

/* This function is called after the section sizes and offsets have
   been set.  If we are generating embedded relocs, it calls a special
   BFD backend routine to do the work.  */

static void
gld${EMULATION_NAME}_after_allocation ()
{
  bfd *abfd;

  if (! command_line.embedded_relocs
      || link_info.relocatable)
    return;

  for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
    {
      asection *datasec, *relsec;
      char *errmsg;

      datasec = bfd_get_section_by_name (abfd, ".data");

      if (datasec == NULL || datasec->reloc_count == 0)
	continue;

      relsec = bfd_get_section_by_name (abfd, ".emreloc");
      ASSERT (relsec != NULL);

      if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
						   datasec, relsec,
						   &errmsg))
	{
	  if (errmsg == NULL)
	    einfo ("%B%X: can not create runtime reloc information: %E\n",
		   abfd);
	  else
	    einfo ("%X%B: can not create runtime reloc information: %s\n",
		   abfd, errmsg);
	}
    }
}

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 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${EMULATION_NAME}_after_open,
  gld${EMULATION_NAME}_after_allocation,
  set_output_arch_default,
  ldemul_default_target,
  before_allocation_default,
  gld${EMULATION_NAME}_get_script,
  "${EMULATION_NAME}",
  "${OUTPUT_FORMAT}",
  NULL,	/* finish */
  NULL,	/* create output section statements */
  NULL,	/* open dynamic archive */
  NULL,	/* place orphan */
  NULL,	/* set symbols */
  NULL,	/* parse args */
  NULL,	/* add_options */
  NULL,	/* handle_option */
  NULL,	/* unrecognized file */
  NULL,	/* list options */
  NULL,	/* recognized file */
  NULL,	/* find_potential_libraries */
  NULL	/* new_vers_pattern */
};
EOF
Commit	Line	Data
20bccb34 NC	1	# This shell script emits a C file. -- C --
	2	# It does some substitutions.
	3	cat >e${EMULATION_NAME}.c <<EOF
	4	/* This file is is generated by a shell script. DO NOT EDIT! */
	5
	6	/* Handle embedded relocs for m68k.
3bcf5557	7	Copyright 2000, 2002, 2003 Free Software Foundation, Inc.
20bccb34 NC	8	Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on generic.em
	9	by Steve Chamberlain <steve@cygnus.com>, embedded relocs code based on
	10	mipsecoff.em by Ian Lance Taylor <ian@cygnus.com>.
	11
	12	This file is part of GLD, the Gnu Linker.
	13
	14	This program is free software; you can redistribute it and/or modify
	15	it under the terms of the GNU General Public License as published by
	16	the Free Software Foundation; either version 2 of the License, or
	17	(at your option) any later version.
	18
	19	This program is distributed in the hope that it will be useful,
	20	but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	GNU General Public License for more details.
	23
	24	You should have received a copy of the GNU General Public License
	25	along with this program; if not, write to the Free Software
	26	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	27
	28	#define TARGET_IS_${EMULATION_NAME}
	29
	30	#include "bfd.h"
	31	#include "sysdep.h"
	32	#include "bfdlink.h"
	33
	34	#include "ld.h"
	35	#include "ldmain.h"
20bccb34	36	#include "ldfile.h"
41392f03	37	#include "ldemul.h"
20bccb34 NC	38	#include "ldmisc.h"
	39
	40	static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
	41	static void gld${EMULATION_NAME}_after_open PARAMS ((void));
	42	static void check_sections PARAMS ((bfd , asection , PTR));
	43	static void gld${EMULATION_NAME}_after_allocation PARAMS ((void));
	44	static char gld${EMULATION_NAME}_get_script PARAMS ((int isfile));
	45
	46	static void
	47	gld${EMULATION_NAME}_before_parse ()
	48	{
	49	#ifndef TARGET_ /* I.e., if not generic. */
	50	ldfile_set_output_arch ("`echo ${ARCH}`");
	51	#endif /* not TARGET_ */
	52	}
	53
	54	/* This function is run after all the input files have been opened.
	55	We create a .emreloc section for each input file with a non zero
	56	.data section. The BFD backend will fill in these sections with
	57	magic numbers which can be used to relocate the data section at run
	58	time. */
	59
	60	static void
	61	gld${EMULATION_NAME}_after_open ()
	62	{
	63	bfd *abfd;
	64
	65	if (! command_line.embedded_relocs
1049f94e	66	\|\| link_info.relocatable)
20bccb34 NC	67	return;
	68
	69	for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
	70	{
	71	asection *datasec;
	72
	73	/* As first-order business, make sure that each input BFD is COFF. It
	74	better be, as we are directly calling a COFF backend function. */
	75	if (bfd_get_flavour (abfd) != bfd_target_coff_flavour)
	76	einfo ("%F%B: all input objects must be COFF for --embedded-relocs\n");
	77
	78	datasec = bfd_get_section_by_name (abfd, ".data");
	79
	80	/* Note that we assume that the reloc_count field has already
	81	been set up. We could call bfd_get_reloc_upper_bound, but
	82	that returns the size of a memory buffer rather than a reloc
	83	count. We do not want to call bfd_canonicalize_reloc,
	84	because although it would always work it would force us to
	85	read in the relocs into BFD canonical form, which would waste
	86	a significant amount of time and memory. */
	87	if (datasec != NULL && datasec->reloc_count > 0)
	88	{
	89	asection *relsec;
	90
	91	relsec = bfd_make_section (abfd, ".emreloc");
	92	if (relsec == NULL
	93	\|\| ! bfd_set_section_flags (abfd, relsec,
	94	(SEC_ALLOC
	95	\| SEC_LOAD
	96	\| SEC_HAS_CONTENTS
	97	\| SEC_IN_MEMORY))
	98	\|\| ! bfd_set_section_alignment (abfd, relsec, 2)
	99	\|\| ! bfd_set_section_size (abfd, relsec,
	100	datasec->reloc_count * 12))
	101	einfo ("%F%B: can not create .emreloc section: %E\n");
	102	}
	103
	104	/* Double check that all other data sections are empty, as is
	105	required for embedded PIC code. */
	106	bfd_map_over_sections (abfd, check_sections, (PTR) datasec);
	107	}
	108	}
	109
	110	/* Check that of the data sections, only the .data section has
	111	relocs. This is called via bfd_map_over_sections. */
	112
	113	static void
	114	check_sections (abfd, sec, datasec)
	115	bfd *abfd;
	116	asection *sec;
	117	PTR datasec;
	118	{
	119	if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
	120	&& sec != (asection *) datasec
	121	&& sec->reloc_count != 0)
	122	einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
	123	abfd, bfd_get_section_name (abfd, sec));
	124	}
	125
	126	/* This function is called after the section sizes and offsets have
	127	been set. If we are generating embedded relocs, it calls a special
	128	BFD backend routine to do the work. */
	129
	130	static void
131	gld${EMULATION_NAME}_after_allocation ()
132	{
133	bfd *abfd;
134
135	if (! command_line.embedded_relocs
1049f94e	136	\|\| link_info.relocatable)
20bccb34 NC	137	return;
	138
	139	for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
	140	{
	141	asection datasec, relsec;
	142	char *errmsg;
	143
	144	datasec = bfd_get_section_by_name (abfd, ".data");
	145
	146	if (datasec == NULL \|\| datasec->reloc_count == 0)
	147	continue;
	148
	149	relsec = bfd_get_section_by_name (abfd, ".emreloc");
	150	ASSERT (relsec != NULL);
	151
	152	if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
	153	datasec, relsec,
	154	&errmsg))
	155	{
	156	if (errmsg == NULL)
	157	einfo ("%B%X: can not create runtime reloc information: %E\n",
	158	abfd);
	159	else
	160	einfo ("%X%B: can not create runtime reloc information: %s\n",
	161	abfd, errmsg);
	162	}
	163	}
	164	}
	165
	166	static char *
	167	gld${EMULATION_NAME}_get_script(isfile)
	168	int *isfile;
	169	EOF
	170
	171	if test -n "$COMPILE_IN"
	172	then
	173	# Scripts compiled in.
	174
	175	# sed commands to quote an ld script as a C string.
	176	sc="-f stringify.sed"
	177
	178	cat >>e${EMULATION_NAME}.c <<EOF
	179	{
	180	*isfile = 0;
	181
1049f94e	182	if (link_info.relocatable && config.build_constructors)
20bccb34 NC	183	return
20bccb34 NC	184	EOF
b34976b6	185	sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1049f94e	186	echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
b34976b6 AM	187	sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
	188	echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
	189	sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
	190	echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
	191	sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
	192	echo ' ; else return' >> e${EMULATION_NAME}.c
	193	sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
	194	echo '; }' >> e${EMULATION_NAME}.c
20bccb34 NC	195
	196	else
	197	# Scripts read from the filesystem.
	198
	199	cat >>e${EMULATION_NAME}.c <<EOF
	200	{
	201	*isfile = 1;
	202
1049f94e	203	if (link_info.relocatable && config.build_constructors)
20bccb34	204	return "ldscripts/${EMULATION_NAME}.xu";
1049f94e	205	else if (link_info.relocatable)
20bccb34 NC	206	return "ldscripts/${EMULATION_NAME}.xr";
	207	else if (!config.text_read_only)
	208	return "ldscripts/${EMULATION_NAME}.xbn";
	209	else if (!config.magic_demand_paged)
	210	return "ldscripts/${EMULATION_NAME}.xn";
	211	else
	212	return "ldscripts/${EMULATION_NAME}.x";
	213	}
	214	EOF
	215
	216	fi
	217
	218	cat >>e${EMULATION_NAME}.c <<EOF
	219
	220	struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
	221	{
	222	gld${EMULATION_NAME}_before_parse,
	223	syslib_default,
	224	hll_default,
	225	after_parse_default,
	226	gld${EMULATION_NAME}_after_open,
	227	gld${EMULATION_NAME}_after_allocation,
	228	set_output_arch_default,
	229	ldemul_default_target,
	230	before_allocation_default,
	231	gld${EMULATION_NAME}_get_script,
	232	"${EMULATION_NAME}",
	233	"${OUTPUT_FORMAT}",
	234	NULL, /* finish */
	235	NULL, /* create output section statements */
	236	NULL, /* open dynamic archive */
	237	NULL, /* place orphan */
	238	NULL, /* set symbols */
	239	NULL, /* parse args */
3bcf5557 AM	240	NULL, /* add_options */
3bcf5557 AM	241	NULL, /* handle_option */
20bccb34 NC	242	NULL, /* unrecognized file */
	243	NULL, /* list options */
	244	NULL, /* recognized file */
fac1652d AM	245	NULL, /* find_potential_libraries */
fac1652d AM	246	NULL /* new_vers_pattern */
20bccb34 NC	247	};
20bccb34 NC	248	EOF