[deliverable/binutils-gdb.git] / ld / emultempl / m68hc1xelf.em

# This shell script emits a C file. -*- C -*-
#   Copyright (C) 1991-2018 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.
#

# This file is sourced from elf32.em, and defines extra m68hc12-elf
# and m68hc11-elf specific routines.  It is used to generate the
# HC11/HC12 trampolines to call a far function by using a normal 'jsr/bsr'.
#
# - The HC11/HC12 relocations are checked to see if there is a
#   R_M68HC11_16 relocation to a symbol marked with STO_M68HC12_FAR.
#   This relocation cannot be made on the symbol but must be made on
#   its trampoline
#   The trampolines to generate are collected during this pass
#   (See elf32_m68hc11_size_stubs)
#
# - The trampolines are generated in a ".tramp" section.  The generation
#   takes care of HC11 and HC12 specificities.
#   (See elf32_m68hc11_build_stubs)
#
# - During relocation the R_M68HC11_16 relocation to the far symbols
#   are redirected to the trampoline that was generated.
#
# Copied from hppaelf and adapted for M68HC11/M68HC12 specific needs.
#
fragment <<EOF

#include "ldctor.h"
#include "elf32-m68hc1x.h"

static asection *m68hc11elf_add_stub_section (const char *, asection *);

/* Fake input file for stubs.  */
static lang_input_statement_type *stub_file;

/* By default the HC11/HC12 trampolines to call a far function using
   a normal 'bsr' and 'jsr' convention are generated during the link.
   The --no-trampoline option prevents that.  */
static int no_trampoline = 0;

/* Name of memory bank window in the MEMORY description.
   This is set by --bank-window option.  */
static const char* bank_window_name = 0;

static void
m68hc11_elf_${EMULATION_NAME}_before_allocation (void)
{
  lang_memory_region_type* region;
  int ret;

  gld${EMULATION_NAME}_before_allocation ();

  if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
    return;

  /* If generating a relocatable output file, then we don't
     have to generate the trampolines.  */
  if (bfd_link_relocatable (&link_info))
    return;

  ret = elf32_m68hc11_setup_section_lists (link_info.output_bfd, &link_info);
  if (ret != 0 && no_trampoline == 0)
    {
      if (ret < 0)
	{
	  einfo (_("%X%P: can not size stub section: %E\n"));
	  return;
	}

      /* Call into the BFD backend to do the real work.  */
      if (!elf32_m68hc11_size_stubs (link_info.output_bfd,
				     stub_file->the_bfd,
				     &link_info,
				     &m68hc11elf_add_stub_section))
	{
	  einfo (_("%X%P: can not size stub section: %E\n"));
	  return;
	}
    }

  if (bank_window_name == 0)
    return;

  /* The 'bank_window_name' memory region is a special region that describes
     the memory bank window to access to paged memory.  For 68HC12
     this is fixed and should be:

     window (rx) : ORIGIN = 0x8000, LENGTH = 16K

     But for 68HC11 this is board specific.  The definition of such
     memory region allows to control how this paged memory is accessed.  */
  region = lang_memory_region_lookup (bank_window_name, FALSE);

  /* Check the length to see if it was defined in the script.  */
  if (region->length != 0)
    {
      struct m68hc11_page_info *pinfo;
      unsigned i;

      /* Get default values  */
      m68hc11_elf_get_bank_parameters (&link_info);
      pinfo = &m68hc11_elf_hash_table (&link_info)->pinfo;

      /* And override them with the region definition.  */
      pinfo->bank_size = region->length;
      pinfo->bank_shift = 0;
      for (i = pinfo->bank_size; i != 0; i >>= 1)
	pinfo->bank_shift++;
      pinfo->bank_shift--;
      pinfo->bank_size = 1L << pinfo->bank_shift;
      pinfo->bank_mask = (1 << pinfo->bank_shift) - 1;
      pinfo->bank_physical = region->origin;
      pinfo->bank_physical_end = region->origin + pinfo->bank_size;

      if (pinfo->bank_size != region->length)
	{
	  einfo (_("%P: warning: the size of the 'window' memory region "
		   "is not a power of 2; its size %d is truncated to %d\n"),
		 region->length, pinfo->bank_size);
	}
    }
}

/* This is called before the input files are opened.  We create a new
   fake input file to hold the stub sections.  */

static void
m68hc11elf_create_output_section_statements (void)
{
  if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
    {
      einfo (_("%X%P: changing output format whilst linking "
	       "is not supported\n"));
      return;
    }

  stub_file = lang_add_input_file ("linker stubs",
				   lang_input_file_is_fake_enum,
				   NULL);
  stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
  if (stub_file->the_bfd == NULL
      || !bfd_set_arch_mach (stub_file->the_bfd,
			     bfd_get_arch (link_info.output_bfd),
			     bfd_get_mach (link_info.output_bfd)))
    {
      einfo (_("%F%P: can not create BFD: %E\n"));
      return;
    }

  ldlang_add_file (stub_file);
}


struct hook_stub_info
{
  lang_statement_list_type add;
  asection *input_section;
};

/* Traverse the linker tree to find the spot where the stub goes.  */

static bfd_boolean
hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
{
  lang_statement_union_type *l;
  bfd_boolean ret;

  for (; (l = *lp) != NULL; lp = &l->header.next)
    {
      switch (l->header.type)
	{
	case lang_constructors_statement_enum:
	  ret = hook_in_stub (info, &constructor_list.head);
	  if (ret)
	    return ret;
	  break;

	case lang_output_section_statement_enum:
	  ret = hook_in_stub (info,
			      &l->output_section_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_wild_statement_enum:
	  ret = hook_in_stub (info, &l->wild_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_group_statement_enum:
	  ret = hook_in_stub (info, &l->group_statement.children.head);
	  if (ret)
	    return ret;
	  break;

	case lang_input_section_enum:
	  if (l->input_section.section == info->input_section
	      || strcmp (bfd_get_section_name (l->input_section.section->owner,
					       l->input_section.section),
			 bfd_get_section_name (info->input_section->owner,
					       info->input_section)) == 0)
	    {
	      /* We've found our section.  Insert the stub immediately
		 before its associated input section.  */
	      *lp = info->add.head;
	      *(info->add.tail) = l;
	      return TRUE;
	    }
	  break;

	case lang_data_statement_enum:
	case lang_reloc_statement_enum:
	case lang_object_symbols_statement_enum:
	case lang_output_statement_enum:
	case lang_target_statement_enum:
	case lang_input_statement_enum:
	case lang_assignment_statement_enum:
	case lang_padding_statement_enum:
	case lang_address_statement_enum:
	case lang_fill_statement_enum:
	  break;

	default:
	  FAIL ();
	  break;
	}
    }
  return FALSE;
}


/* Call-back for elf32_m68hc11_size_stubs.  */

/* Create a new stub section, and arrange for it to be linked
   immediately before INPUT_SECTION.  */

static asection *
m68hc11elf_add_stub_section (const char *stub_sec_name,
			     asection *tramp_section)
{
  asection *stub_sec;
  flagword flags;
  asection *output_section;
  lang_output_section_statement_type *os;
  struct hook_stub_info info;

  flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
	   | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
  stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
						 stub_sec_name, flags);
  if (stub_sec == NULL)
    goto err_ret;

  output_section = tramp_section->output_section;
  os = lang_output_section_get (output_section);

  /* Try to put the new section at the same place as an existing
     .tramp section.  Such .tramp section exists in most cases and
     contains the trampoline code.  This way we put the generated trampoline
     at the correct place.  */
  info.input_section = tramp_section;
  lang_list_init (&info.add);
  lang_add_section (&info.add, stub_sec, NULL, os);

  if (info.add.head == NULL)
    goto err_ret;

  if (hook_in_stub (&info, &os->children.head))
    return stub_sec;

 err_ret:
  einfo (_("%X%P: can not make stub section: %E\n"));
  return NULL;
}

/* For the 68HC12 we use this opportunity to build linker stubs.  */

static void
m68hc11elf_after_allocation (void)
{
  if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
    {
      /* Now build the linker stubs.  */
      if (stub_file->the_bfd->sections != NULL)
	{
	  /* Call again the trampoline analyzer to initialize the trampoline
	     stubs with the correct symbol addresses.  Since there could have
	     been relaxation, the symbol addresses that were found during
	     first call may no longer be correct.  */
	  if (!elf32_m68hc11_size_stubs (link_info.output_bfd,
					 stub_file->the_bfd,
					 &link_info, 0))
	    {
	      einfo (_("%X%P: can not size stub section: %E\n"));
	      return;
	    }
	  if (!elf32_m68hc11_build_stubs (link_info.output_bfd, &link_info))
	    einfo (_("%X%P: can not build stubs: %E\n"));
	}
    }

  gld${EMULATION_NAME}_after_allocation ();
}


/* Avoid processing the fake stub_file in vercheck, stat_needed and
   check_needed routines.  */

static void (*real_func) (lang_input_statement_type *);

static void m68hc11_for_each_input_file_wrapper (lang_input_statement_type *l)
{
  if (l != stub_file)
    (*real_func) (l);
}

static void
m68hc11_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
{
  real_func = func;
  lang_for_each_input_file (&m68hc11_for_each_input_file_wrapper);
}

#define lang_for_each_input_file m68hc11_lang_for_each_input_file

EOF

# Define some shell vars to insert bits of code into the standard elf
# parse_args and list_options functions.
#
PARSE_AND_LIST_PROLOGUE='
#define OPTION_NO_TRAMPOLINE		300
#define OPTION_BANK_WINDOW		301
'

# The options are repeated below so that no abbreviations are allowed.
# Otherwise -s matches stub-group-size
PARSE_AND_LIST_LONGOPTS='
  { "no-trampoline", no_argument, NULL, OPTION_NO_TRAMPOLINE },
  { "bank-window",   required_argument, NULL, OPTION_BANK_WINDOW },
'

PARSE_AND_LIST_OPTIONS='
  fprintf (file, _(
"  --no-trampoline             Do not generate the far trampolines used to call\n"
"                                a far function using 'jsr' or 'bsr'\n"));
  fprintf (file, _(
"  --bank-window NAME          Specify the name of the memory region describing\n"
"                                the layout of the memory bank window\n"));
'

PARSE_AND_LIST_ARGS_CASES='
    case OPTION_NO_TRAMPOLINE:
      no_trampoline = 1;
      break;
    case OPTION_BANK_WINDOW:
      bank_window_name = optarg;
      break;
'

# Put these extra m68hc11elf routines in ld_${EMULATION_NAME}_emulation
#
LDEMUL_BEFORE_ALLOCATION=m68hc11_elf_${EMULATION_NAME}_before_allocation
LDEMUL_AFTER_ALLOCATION=m68hc11elf_after_allocation
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=m68hc11elf_create_output_section_statements
Commit	Line	Data
67bb9940	1	# This shell script emits a C file. -- C --
219d1afa	2	# Copyright (C) 1991-2018 Free Software Foundation, Inc.
67bb9940	3	#
f96b4a7b	4	# This file is part of the GNU Binutils.
67bb9940 SC	5	#
	6	# This program is free software; you can redistribute it and/or modify
	7	# it under the terms of the GNU General Public License as published by
f96b4a7b	8	# the Free Software Foundation; either version 3 of the License, or
67bb9940 SC	9	# (at your option) any later version.
	10	#
	11	# This program is distributed in the hope that it will be useful,
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	# GNU General Public License for more details.
	15	#
	16	# You should have received a copy of the GNU General Public License
	17	# along with this program; if not, write to the Free Software
f96b4a7b NC	18	# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
f96b4a7b NC	19	# MA 02110-1301, USA.
67bb9940 SC	20	#
	21
	22	# This file is sourced from elf32.em, and defines extra m68hc12-elf
	23	# and m68hc11-elf specific routines. It is used to generate the
	24	# HC11/HC12 trampolines to call a far function by using a normal 'jsr/bsr'.
	25	#
	26	# - The HC11/HC12 relocations are checked to see if there is a
	27	# R_M68HC11_16 relocation to a symbol marked with STO_M68HC12_FAR.
	28	# This relocation cannot be made on the symbol but must be made on
	29	# its trampoline
	30	# The trampolines to generate are collected during this pass
	31	# (See elf32_m68hc11_size_stubs)
	32	#
	33	# - The trampolines are generated in a ".tramp" section. The generation
	34	# takes care of HC11 and HC12 specificities.
	35	# (See elf32_m68hc11_build_stubs)
	36	#
	37	# - During relocation the R_M68HC11_16 relocation to the far symbols
	38	# are redirected to the trampoline that was generated.
	39	#
	40	# Copied from hppaelf and adapted for M68HC11/M68HC12 specific needs.
	41	#
92b93329	42	fragment <<EOF
67bb9940 SC	43
	44	#include "ldctor.h"
	45	#include "elf32-m68hc1x.h"
	46
0c7a8e5a	47	static asection m68hc11elf_add_stub_section (const char , asection *);
67bb9940 SC	48
	49	/* Fake input file for stubs. */
	50	static lang_input_statement_type *stub_file;
	51
	52	/* By default the HC11/HC12 trampolines to call a far function using
	53	a normal 'bsr' and 'jsr' convention are generated during the link.
	54	The --no-trampoline option prevents that. */
	55	static int no_trampoline = 0;
	56
	57	/* Name of memory bank window in the MEMORY description.
	58	This is set by --bank-window option. */
	59	static const char* bank_window_name = 0;
	60
	61	static void
0c7a8e5a	62	m68hc11_elf_${EMULATION_NAME}_before_allocation (void)
67bb9940 SC	63	{
	64	lang_memory_region_type* region;
	65	int ret;
	66
	67	gld${EMULATION_NAME}_before_allocation ();
	68
fd9770d8 NC	69	if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
	70	return;
	71
67bb9940 SC	72	/* If generating a relocatable output file, then we don't
67bb9940 SC	73	have to generate the trampolines. */
0e1862bb	74	if (bfd_link_relocatable (&link_info))
67bb9940 SC	75	return;
67bb9940 SC	76
f13a99db	77	ret = elf32_m68hc11_setup_section_lists (link_info.output_bfd, &link_info);
67bb9940 SC	78	if (ret != 0 && no_trampoline == 0)
	79	{
	80	if (ret < 0)
	81	{
d003af55	82	einfo (_("%X%P: can not size stub section: %E\n"));
67bb9940 SC	83	return;
	84	}
	85
	86	/* Call into the BFD backend to do the real work. */
f13a99db	87	if (!elf32_m68hc11_size_stubs (link_info.output_bfd,
0c7a8e5a AM	88	stub_file->the_bfd,
	89	&link_info,
	90	&m68hc11elf_add_stub_section))
67bb9940	91	{
d003af55	92	einfo (_("%X%P: can not size stub section: %E\n"));
67bb9940 SC	93	return;
	94	}
	95	}
	96
	97	if (bank_window_name == 0)
	98	return;
	99
	100	/* The 'bank_window_name' memory region is a special region that describes
	101	the memory bank window to access to paged memory. For 68HC12
	102	this is fixed and should be:
	103
	104	window (rx) : ORIGIN = 0x8000, LENGTH = 16K
	105
	106	But for 68HC11 this is board specific. The definition of such
	107	memory region allows to control how this paged memory is accessed. */
383b8428	108	region = lang_memory_region_lookup (bank_window_name, FALSE);
67bb9940 SC	109
	110	/* Check the length to see if it was defined in the script. */
	111	if (region->length != 0)
	112	{
	113	struct m68hc11_page_info *pinfo;
	114	unsigned i;
	115
	116	/* Get default values */
	117	m68hc11_elf_get_bank_parameters (&link_info);
	118	pinfo = &m68hc11_elf_hash_table (&link_info)->pinfo;
	119
	120	/* And override them with the region definition. */
	121	pinfo->bank_size = region->length;
	122	pinfo->bank_shift = 0;
	123	for (i = pinfo->bank_size; i != 0; i >>= 1)
0c7a8e5a	124	pinfo->bank_shift++;
67bb9940 SC	125	pinfo->bank_shift--;
	126	pinfo->bank_size = 1L << pinfo->bank_shift;
	127	pinfo->bank_mask = (1 << pinfo->bank_shift) - 1;
	128	pinfo->bank_physical = region->origin;
	129	pinfo->bank_physical_end = region->origin + pinfo->bank_size;
	130
	131	if (pinfo->bank_size != region->length)
0c7a8e5a	132	{
df5f2391 AM	133	einfo (_("%P: warning: the size of the 'window' memory region "
df5f2391 AM	134	"is not a power of 2; its size %d is truncated to %d\n"),
0c7a8e5a AM	135	region->length, pinfo->bank_size);
0c7a8e5a AM	136	}
67bb9940 SC	137	}
	138	}
	139
	140	/* This is called before the input files are opened. We create a new
	141	fake input file to hold the stub sections. */
	142
	143	static void
0c7a8e5a	144	m68hc11elf_create_output_section_statements (void)
67bb9940	145	{
fd9770d8 NC	146	if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
fd9770d8 NC	147	{
d003af55 AM	148	einfo (_("%X%P: changing output format whilst linking "
d003af55 AM	149	"is not supported\n"));
fd9770d8 NC	150	return;
	151	}
	152
67bb9940 SC	153	stub_file = lang_add_input_file ("linker stubs",
	154	lang_input_file_is_fake_enum,
	155	NULL);
f13a99db	156	stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
67bb9940 SC	157	if (stub_file->the_bfd == NULL
67bb9940 SC	158	\|\| !bfd_set_arch_mach (stub_file->the_bfd,
f13a99db AM	159	bfd_get_arch (link_info.output_bfd),
f13a99db AM	160	bfd_get_mach (link_info.output_bfd)))
67bb9940	161	{
df5f2391	162	einfo (_("%F%P: can not create BFD: %E\n"));
67bb9940 SC	163	return;
	164	}
	165
	166	ldlang_add_file (stub_file);
	167	}
	168
	169
	170	struct hook_stub_info
	171	{
	172	lang_statement_list_type add;
	173	asection *input_section;
	174	};
	175
	176	/* Traverse the linker tree to find the spot where the stub goes. */
	177
67bb9940	178	static bfd_boolean
0c7a8e5a	179	hook_in_stub (struct hook_stub_info info, lang_statement_union_type *lp)
67bb9940 SC	180	{
	181	lang_statement_union_type *l;
	182	bfd_boolean ret;
	183
	184	for (; (l = *lp) != NULL; lp = &l->header.next)
	185	{
	186	switch (l->header.type)
	187	{
	188	case lang_constructors_statement_enum:
	189	ret = hook_in_stub (info, &constructor_list.head);
	190	if (ret)
	191	return ret;
	192	break;
	193
	194	case lang_output_section_statement_enum:
	195	ret = hook_in_stub (info,
	196	&l->output_section_statement.children.head);
	197	if (ret)
	198	return ret;
	199	break;
	200
	201	case lang_wild_statement_enum:
	202	ret = hook_in_stub (info, &l->wild_statement.children.head);
	203	if (ret)
	204	return ret;
	205	break;
	206
	207	case lang_group_statement_enum:
	208	ret = hook_in_stub (info, &l->group_statement.children.head);
	209	if (ret)
	210	return ret;
	211	break;
	212
	213	case lang_input_section_enum:
	214	if (l->input_section.section == info->input_section
a0f49396	215	\|\| strcmp (bfd_get_section_name (l->input_section.section->owner,
0c7a8e5a	216	l->input_section.section),
a0f49396	217	bfd_get_section_name (info->input_section->owner,
0c7a8e5a	218	info->input_section)) == 0)
67bb9940 SC	219	{
	220	/* We've found our section. Insert the stub immediately
	221	before its associated input section. */
	222	*lp = info->add.head;
	223	*(info->add.tail) = l;
	224	return TRUE;
	225	}
	226	break;
	227
	228	case lang_data_statement_enum:
	229	case lang_reloc_statement_enum:
	230	case lang_object_symbols_statement_enum:
	231	case lang_output_statement_enum:
	232	case lang_target_statement_enum:
	233	case lang_input_statement_enum:
	234	case lang_assignment_statement_enum:
	235	case lang_padding_statement_enum:
	236	case lang_address_statement_enum:
	237	case lang_fill_statement_enum:
	238	break;
	239
	240	default:
	241	FAIL ();
	242	break;
	243	}
	244	}
	245	return FALSE;
	246	}
	247
	248
	249	/* Call-back for elf32_m68hc11_size_stubs. */
	250
	251	/* Create a new stub section, and arrange for it to be linked
	252	immediately before INPUT_SECTION. */
	253
	254	static asection *
0c7a8e5a AM	255	m68hc11elf_add_stub_section (const char *stub_sec_name,
0c7a8e5a AM	256	asection *tramp_section)
67bb9940 SC	257	{
	258	asection *stub_sec;
	259	flagword flags;
	260	asection *output_section;
67bb9940 SC	261	lang_output_section_statement_type *os;
67bb9940 SC	262	struct hook_stub_info info;
0c7a8e5a	263
67bb9940 SC	264	flags = (SEC_ALLOC \| SEC_LOAD \| SEC_READONLY \| SEC_CODE
67bb9940 SC	265	\| SEC_HAS_CONTENTS \| SEC_RELOC \| SEC_IN_MEMORY \| SEC_KEEP);
9795b468 AM	266	stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
	267	stub_sec_name, flags);
	268	if (stub_sec == NULL)
67bb9940 SC	269	goto err_ret;
	270
	271	output_section = tramp_section->output_section;
24ef1aa7	272	os = lang_output_section_get (output_section);
67bb9940 SC	273
	274	/* Try to put the new section at the same place as an existing
	275	.tramp section. Such .tramp section exists in most cases and
	276	contains the trampoline code. This way we put the generated trampoline
	277	at the correct place. */
	278	info.input_section = tramp_section;
	279	lang_list_init (&info.add);
b9c361e0	280	lang_add_section (&info.add, stub_sec, NULL, os);
67bb9940 SC	281
	282	if (info.add.head == NULL)
	283	goto err_ret;
	284
	285	if (hook_in_stub (&info, &os->children.head))
	286	return stub_sec;
	287
	288	err_ret:
d003af55	289	einfo (_("%X%P: can not make stub section: %E\n"));
67bb9940 SC	290	return NULL;
	291	}
	292
eaeb0a9d	293	/* For the 68HC12 we use this opportunity to build linker stubs. */
67bb9940 SC	294
67bb9940 SC	295	static void
eaeb0a9d	296	m68hc11elf_after_allocation (void)
67bb9940	297	{
fd9770d8	298	if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
67bb9940	299	{
fd9770d8 NC	300	/* Now build the linker stubs. */
fd9770d8 NC	301	if (stub_file->the_bfd->sections != NULL)
67bb9940	302	{
fd9770d8 NC	303	/* Call again the trampoline analyzer to initialize the trampoline
	304	stubs with the correct symbol addresses. Since there could have
	305	been relaxation, the symbol addresses that were found during
	306	first call may no longer be correct. */
	307	if (!elf32_m68hc11_size_stubs (link_info.output_bfd,
	308	stub_file->the_bfd,
	309	&link_info, 0))
	310	{
d003af55	311	einfo (_("%X%P: can not size stub section: %E\n"));
fd9770d8 NC	312	return;
	313	}
	314	if (!elf32_m68hc11_build_stubs (link_info.output_bfd, &link_info))
d003af55	315	einfo (_("%X%P: can not build stubs: %E\n"));
67bb9940	316	}
67bb9940	317	}
b1ab9777	318
eaeb0a9d	319	gld${EMULATION_NAME}_after_allocation ();
67bb9940 SC	320	}
	321
	322
	323	/* Avoid processing the fake stub_file in vercheck, stat_needed and
	324	check_needed routines. */
	325
0c7a8e5a	326	static void (real_func) (lang_input_statement_type );
67bb9940	327
0c7a8e5a	328	static void m68hc11_for_each_input_file_wrapper (lang_input_statement_type *l)
67bb9940 SC	329	{
	330	if (l != stub_file)
	331	(*real_func) (l);
	332	}
	333
	334	static void
0c7a8e5a	335	m68hc11_lang_for_each_input_file (void (func) (lang_input_statement_type ))
67bb9940 SC	336	{
	337	real_func = func;
	338	lang_for_each_input_file (&m68hc11_for_each_input_file_wrapper);
	339	}
	340
	341	#define lang_for_each_input_file m68hc11_lang_for_each_input_file
	342
	343	EOF
	344
	345	# Define some shell vars to insert bits of code into the standard elf
	346	# parse_args and list_options functions.
	347	#
	348	PARSE_AND_LIST_PROLOGUE='
0c7a8e5a AM	349	#define OPTION_NO_TRAMPOLINE 300
0c7a8e5a AM	350	#define OPTION_BANK_WINDOW 301
67bb9940 SC	351	'
	352
	353	# The options are repeated below so that no abbreviations are allowed.
	354	# Otherwise -s matches stub-group-size
	355	PARSE_AND_LIST_LONGOPTS='
	356	{ "no-trampoline", no_argument, NULL, OPTION_NO_TRAMPOLINE },
	357	{ "bank-window", required_argument, NULL, OPTION_BANK_WINDOW },
	358	'
	359
	360	PARSE_AND_LIST_OPTIONS='
442996ee AM	361	fprintf (file, _(
442996ee AM	362	" --no-trampoline Do not generate the far trampolines used to call\n"
df5f2391 AM	363	" a far function using 'jsr' or 'bsr'\n"));
df5f2391 AM	364	fprintf (file, _(
442996ee	365	" --bank-window NAME Specify the name of the memory region describing\n"
df5f2391	366	" the layout of the memory bank window\n"));
67bb9940 SC	367	'
	368
	369	PARSE_AND_LIST_ARGS_CASES='
	370	case OPTION_NO_TRAMPOLINE:
	371	no_trampoline = 1;
	372	break;
	373	case OPTION_BANK_WINDOW:
	374	bank_window_name = optarg;
	375	break;
	376	'
	377
	378	# Put these extra m68hc11elf routines in ld_${EMULATION_NAME}_emulation
	379	#
	380	LDEMUL_BEFORE_ALLOCATION=m68hc11_elf_${EMULATION_NAME}_before_allocation
eaeb0a9d	381	LDEMUL_AFTER_ALLOCATION=m68hc11elf_after_allocation
67bb9940	382	LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=m68hc11elf_create_output_section_statements