[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 check_sections (bfd *, asection *, void *);

static void
gld${EMULATION_NAME}_before_parse (void)
{
#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 (void)
{
  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, 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 (bfd *abfd, asection *sec, void *datasec)
{
  if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
      && sec != 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 (void)
{
  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 (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_${EMULATION_NAME}
	29
	30	#include "bfd.h"
	31	#include "sysdep.h"
	32	#include "bfdlink.h"
	33
	34	#include "ld.h"
	35	#include "ldmain.h"
20bccb34	36	#include "ldfile.h"
41392f03	37	#include "ldemul.h"
20bccb34 NC	38	#include "ldmisc.h"
20bccb34 NC	39
0c7a8e5a	40	static void check_sections (bfd , asection , void *);
20bccb34 NC	41
20bccb34 NC	42	static void
0c7a8e5a	43	gld${EMULATION_NAME}_before_parse (void)
20bccb34 NC	44	{
	45	#ifndef TARGET_ /* I.e., if not generic. */
	46	ldfile_set_output_arch ("`echo ${ARCH}`");
	47	#endif /* not TARGET_ */
	48	}
	49
	50	/* This function is run after all the input files have been opened.
	51	We create a .emreloc section for each input file with a non zero
	52	.data section. The BFD backend will fill in these sections with
	53	magic numbers which can be used to relocate the data section at run
	54	time. */
	55
	56	static void
0c7a8e5a	57	gld${EMULATION_NAME}_after_open (void)
20bccb34 NC	58	{
	59	bfd *abfd;
	60
	61	if (! command_line.embedded_relocs
1049f94e	62	\|\| link_info.relocatable)
20bccb34 NC	63	return;
	64
	65	for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
	66	{
	67	asection *datasec;
	68
	69	/* As first-order business, make sure that each input BFD is COFF. It
	70	better be, as we are directly calling a COFF backend function. */
	71	if (bfd_get_flavour (abfd) != bfd_target_coff_flavour)
	72	einfo ("%F%B: all input objects must be COFF for --embedded-relocs\n");
	73
	74	datasec = bfd_get_section_by_name (abfd, ".data");
	75
	76	/* Note that we assume that the reloc_count field has already
	77	been set up. We could call bfd_get_reloc_upper_bound, but
	78	that returns the size of a memory buffer rather than a reloc
	79	count. We do not want to call bfd_canonicalize_reloc,
	80	because although it would always work it would force us to
	81	read in the relocs into BFD canonical form, which would waste
	82	a significant amount of time and memory. */
	83	if (datasec != NULL && datasec->reloc_count > 0)
	84	{
	85	asection *relsec;
	86
	87	relsec = bfd_make_section (abfd, ".emreloc");
	88	if (relsec == NULL
	89	\|\| ! bfd_set_section_flags (abfd, relsec,
	90	(SEC_ALLOC
	91	\| SEC_LOAD
	92	\| SEC_HAS_CONTENTS
	93	\| SEC_IN_MEMORY))
	94	\|\| ! bfd_set_section_alignment (abfd, relsec, 2)
	95	\|\| ! bfd_set_section_size (abfd, relsec,
	96	datasec->reloc_count * 12))
	97	einfo ("%F%B: can not create .emreloc section: %E\n");
	98	}
	99
	100	/* Double check that all other data sections are empty, as is
	101	required for embedded PIC code. */
1579bae1	102	bfd_map_over_sections (abfd, check_sections, datasec);
20bccb34 NC	103	}
	104	}
	105
	106	/* Check that of the data sections, only the .data section has
	107	relocs. This is called via bfd_map_over_sections. */
	108
	109	static void
0c7a8e5a	110	check_sections (bfd abfd, asection sec, void *datasec)
20bccb34 NC	111	{
20bccb34 NC	112	if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
0c7a8e5a	113	&& sec != datasec
20bccb34 NC	114	&& sec->reloc_count != 0)
	115	einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
	116	abfd, bfd_get_section_name (abfd, sec));
	117	}
	118
	119	/* This function is called after the section sizes and offsets have
	120	been set. If we are generating embedded relocs, it calls a special
	121	BFD backend routine to do the work. */
	122
	123	static void
0c7a8e5a	124	gld${EMULATION_NAME}_after_allocation (void)
20bccb34 NC	125	{
	126	bfd *abfd;
	127
	128	if (! command_line.embedded_relocs
1049f94e	129	\|\| link_info.relocatable)
20bccb34 NC	130	return;
	131
	132	for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
	133	{
	134	asection datasec, relsec;
	135	char *errmsg;
	136
	137	datasec = bfd_get_section_by_name (abfd, ".data");
	138
	139	if (datasec == NULL \|\| datasec->reloc_count == 0)
	140	continue;
	141
	142	relsec = bfd_get_section_by_name (abfd, ".emreloc");
	143	ASSERT (relsec != NULL);
	144
	145	if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
	146	datasec, relsec,
	147	&errmsg))
	148	{
	149	if (errmsg == NULL)
	150	einfo ("%B%X: can not create runtime reloc information: %E\n",
	151	abfd);
	152	else
	153	einfo ("%X%B: can not create runtime reloc information: %s\n",
	154	abfd, errmsg);
	155	}
	156	}
	157	}
	158
	159	static char *
0c7a8e5a	160	gld${EMULATION_NAME}_get_script (int *isfile)
20bccb34 NC	161	EOF
	162
	163	if test -n "$COMPILE_IN"
	164	then
	165	# Scripts compiled in.
	166
	167	# sed commands to quote an ld script as a C string.
	168	sc="-f stringify.sed"
	169
	170	cat >>e${EMULATION_NAME}.c <<EOF
0c7a8e5a	171	{
20bccb34 NC	172	*isfile = 0;
20bccb34 NC	173
1049f94e	174	if (link_info.relocatable && config.build_constructors)
20bccb34 NC	175	return
20bccb34 NC	176	EOF
b34976b6	177	sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1049f94e	178	echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
b34976b6 AM	179	sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
	180	echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
	181	sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
	182	echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
	183	sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
	184	echo ' ; else return' >> e${EMULATION_NAME}.c
	185	sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
	186	echo '; }' >> e${EMULATION_NAME}.c
20bccb34 NC	187
	188	else
	189	# Scripts read from the filesystem.
	190
	191	cat >>e${EMULATION_NAME}.c <<EOF
0c7a8e5a	192	{
20bccb34 NC	193	*isfile = 1;
20bccb34 NC	194
1049f94e	195	if (link_info.relocatable && config.build_constructors)
20bccb34	196	return "ldscripts/${EMULATION_NAME}.xu";
1049f94e	197	else if (link_info.relocatable)
20bccb34 NC	198	return "ldscripts/${EMULATION_NAME}.xr";
	199	else if (!config.text_read_only)
	200	return "ldscripts/${EMULATION_NAME}.xbn";
	201	else if (!config.magic_demand_paged)
	202	return "ldscripts/${EMULATION_NAME}.xn";
	203	else
	204	return "ldscripts/${EMULATION_NAME}.x";
	205	}
	206	EOF
	207
	208	fi
	209
	210	cat >>e${EMULATION_NAME}.c <<EOF
	211
0c7a8e5a	212	struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
20bccb34 NC	213	{
	214	gld${EMULATION_NAME}_before_parse,
	215	syslib_default,
	216	hll_default,
	217	after_parse_default,
	218	gld${EMULATION_NAME}_after_open,
	219	gld${EMULATION_NAME}_after_allocation,
	220	set_output_arch_default,
	221	ldemul_default_target,
	222	before_allocation_default,
	223	gld${EMULATION_NAME}_get_script,
	224	"${EMULATION_NAME}",
	225	"${OUTPUT_FORMAT}",
	226	NULL, /* finish */
	227	NULL, /* create output section statements */
	228	NULL, /* open dynamic archive */
	229	NULL, /* place orphan */
	230	NULL, /* set symbols */
	231	NULL, /* parse args */
3bcf5557 AM	232	NULL, /* add_options */
3bcf5557 AM	233	NULL, /* handle_option */
20bccb34 NC	234	NULL, /* unrecognized file */
	235	NULL, /* list options */
	236	NULL, /* recognized file */
fac1652d AM	237	NULL, /* find_potential_libraries */
fac1652d AM	238	NULL /* new_vers_pattern */
20bccb34 NC	239	};
20bccb34 NC	240	EOF