[thirdparty/binutils-gdb.git] / ld / emultempl / avrelf.em

# This shell script emits a C file. -*- C -*-
#   Copyright (C) 2006-2021 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 elf.em, and defines extra avr-elf specific
# routines.  It is used to generate the trampolines for the avr6 family
# of devices where one needs to address the issue that it is not possible
# to reach the whole program memory by using 16 bit pointers.

fragment <<EOF

#include "elf32-avr.h"
#include "ldctor.h"
#include "elf/avr.h"

/* The fake file and it's corresponding section meant to hold
   the linker stubs if needed.  */

static lang_input_statement_type *stub_file;
static asection *avr_stub_section;

/* Variables set by the command-line parameters and transferred
   to the bfd without use of global shared variables.  */

static bfd_boolean avr_no_stubs = FALSE;
static bfd_boolean avr_debug_relax = FALSE;
static bfd_boolean avr_debug_stubs = FALSE;
static bfd_boolean avr_replace_call_ret_sequences = TRUE;
static bfd_vma avr_pc_wrap_around = 0x10000000;

/* Transfers information to the bfd frontend.  */

static void
avr_elf_set_global_bfd_parameters (void)
{
  elf32_avr_setup_params (& link_info,
			  stub_file->the_bfd,
			  avr_stub_section,
			  avr_no_stubs,
			  avr_debug_stubs,
			  avr_debug_relax,
			  avr_pc_wrap_around,
			  avr_replace_call_ret_sequences);
}


/* Makes a conservative estimate of the trampoline section size that could
   be corrected later on.  */

static void
avr_elf_${EMULATION_NAME}_before_allocation (void)
{
  int ret;

  gld${EMULATION_NAME}_before_allocation ();

  if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
    {
      avr_no_stubs = TRUE;
      return;
    }

  /* We only need stubs for avr6, avrxmega6, and avrxmega7.  */
  if (strcmp ("${EMULATION_NAME}", "avr6") != 0
      && strcmp ("${EMULATION_NAME}", "avrxmega6") != 0
      && strcmp ("${EMULATION_NAME}", "avrxmega7") != 0)
    avr_no_stubs = TRUE;

  avr_elf_set_global_bfd_parameters ();

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

  if (avr_no_stubs)
    return;

  ret = elf32_avr_setup_section_lists (link_info.output_bfd, &link_info);

  if (ret < 0)
    einfo (_("%X%P: can not setup the input section list: %E\n"));

  if (ret <= 0)
    return;

  /* Call into the BFD backend to do the real "stub"-work.  */
  if (! elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
    einfo (_("%X%P: can not size stub section: %E\n"));
}

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

static void
avr_elf_create_output_section_statements (void)
{
  flagword flags;

  if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
    {
      einfo (_("%F%P: error: cannot change output format "
	       "whilst linking %s binaries\n"), "AVR");
      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 (_("%X%P: can not create stub BFD: %E\n"));
      return;
    }

  /* Now we add the stub section.  */

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

  avr_stub_section->alignment_power = 1;

  ldlang_add_file (stub_file);

  return;

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

/* Re-calculates the size of the stubs so that we won't waste space.  */

static void
avr_elf_after_allocation (void)
{
  if (!avr_no_stubs && ! RELAXATION_ENABLED)
    {
      /* If relaxing, elf32_avr_size_stubs will be called from
	 elf32_avr_relax_section.  */
      if (!elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
	einfo (_("%X%P: can not size stub section: %E\n"));
    }

  gld${EMULATION_NAME}_after_allocation ();

  /* Now build the linker stubs.  */
  if (!avr_no_stubs)
    {
      if (!elf32_avr_build_stubs (&link_info))
	einfo (_("%X%P: can not build stubs: %E\n"));
    }
}

static void
avr_elf_before_parse (void)
{
  /* Don't create a demand-paged executable, since this feature isn't
     meaningful in AVR. */
  config.magic_demand_paged = FALSE;

  gld${EMULATION_NAME}_before_parse ();
}

static void
avr_finish (void)
{
  bfd *abfd;
  bfd_boolean avr_link_relax;

  if (bfd_link_relocatable (&link_info))
    {
      avr_link_relax = TRUE;
      for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
	{
	  /* Don't let the linker stubs prevent the final object being
	     marked as link-relax ready.  */
	  if ((elf_elfheader (abfd)->e_flags
	       & EF_AVR_LINKRELAX_PREPARED) == 0
	      && abfd != stub_file->the_bfd)
	    {
	      avr_link_relax = FALSE;
	      break;
	    }
	}
    }
  else
    {
      avr_link_relax = RELAXATION_ENABLED;
    }

  abfd = link_info.output_bfd;

  if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
    {
      if (avr_link_relax)
	elf_elfheader (abfd)->e_flags |= EF_AVR_LINKRELAX_PREPARED;
      else
	elf_elfheader (abfd)->e_flags &= ~EF_AVR_LINKRELAX_PREPARED;
    }

  finish_default ();
}
EOF


PARSE_AND_LIST_PROLOGUE='

#define OPTION_NO_CALL_RET_REPLACEMENT 301
#define OPTION_PMEM_WRAP_AROUND	       302
#define OPTION_NO_STUBS		       303
#define OPTION_DEBUG_STUBS	       304
#define OPTION_DEBUG_RELAX	       305
'

PARSE_AND_LIST_LONGOPTS='
  { "no-call-ret-replacement", no_argument,
    NULL, OPTION_NO_CALL_RET_REPLACEMENT},
  { "pmem-wrap-around", required_argument,
    NULL, OPTION_PMEM_WRAP_AROUND},
  { "no-stubs", no_argument,
    NULL, OPTION_NO_STUBS},
  { "debug-stubs", no_argument,
    NULL, OPTION_DEBUG_STUBS},
  { "debug-relax", no_argument,
    NULL, OPTION_DEBUG_RELAX},
'

PARSE_AND_LIST_OPTIONS='
  fprintf (file, _("  --pmem-wrap-around=<val>    "
		   "Make the linker relaxation machine assume that a\n"
		   "                              "
		   "  program counter wrap-around occurs at address\n"
		   "                              "
		   "  <val>.  Supported values: 8k, 16k, 32k and 64k.\n"));
  fprintf (file, _("  --no-call-ret-replacement   "
		   "The relaxation machine normally will\n"
		   "                              "
		   "  substitute two immediately following call/ret\n"
		   "                              "
		   "  instructions by a single jump instruction.\n"
		   "                              "
		   "  This option disables this optimization.\n"));
  fprintf (file, _("  --no-stubs                  "
		   "If the linker detects to attempt to access\n"
		   "                              "
		   "  an instruction beyond 128k by a reloc that\n"
		   "                              "
		   "  is limited to 128k max, it inserts a jump\n"
		   "                              "
		   "  stub. You can de-active this with this switch.\n"));
  fprintf (file, _("  --debug-stubs               "
		   "Used for debugging avr-ld.\n"));
  fprintf (file, _("  --debug-relax               "
		   "Used for debugging avr-ld.\n"));
'

PARSE_AND_LIST_ARGS_CASES='

    case OPTION_PMEM_WRAP_AROUND:
      {
	/* This variable is defined in the bfd library.  */
	if ((!strcmp (optarg,"32k"))      || (!strcmp (optarg,"32K")))
	  avr_pc_wrap_around = 32768;
	else if ((!strcmp (optarg,"8k"))  || (!strcmp (optarg,"8K")))
	  avr_pc_wrap_around = 8192;
	else if ((!strcmp (optarg,"16k")) || (!strcmp (optarg,"16K")))
	  avr_pc_wrap_around = 16384;
	else if ((!strcmp (optarg,"64k")) || (!strcmp (optarg,"64K")))
	  avr_pc_wrap_around = 0x10000;
	else
	  return FALSE;
      }
      break;

    case OPTION_DEBUG_STUBS:
      avr_debug_stubs = TRUE;
      break;

    case OPTION_DEBUG_RELAX:
      avr_debug_relax = TRUE;
      break;

    case OPTION_NO_STUBS:
      avr_no_stubs = TRUE;
      break;

    case OPTION_NO_CALL_RET_REPLACEMENT:
      {
	/* This variable is defined in the bfd library.  */
	avr_replace_call_ret_sequences = FALSE;
      }
      break;
'

#
# Put these extra avr-elf routines in ld_${EMULATION_NAME}_emulation
#
LDEMUL_BEFORE_PARSE=avr_elf_before_parse
LDEMUL_BEFORE_ALLOCATION=avr_elf_${EMULATION_NAME}_before_allocation
LDEMUL_AFTER_ALLOCATION=avr_elf_after_allocation
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=avr_elf_create_output_section_statements
LDEMUL_FINISH=avr_finish
Commit	Line	Data
28c9d252	1	# This shell script emits a C file. -- C --
250d07de	2	# Copyright (C) 2006-2021 Free Software Foundation, Inc.
28c9d252	3	#
f96b4a7b	4	# This file is part of the GNU Binutils.
28c9d252 NC	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
28c9d252 NC	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.
28c9d252	20
f96b4a7b	21
075a2b89	22	# This file is sourced from elf.em, and defines extra avr-elf specific
f96b4a7b NC	23	# routines. It is used to generate the trampolines for the avr6 family
f96b4a7b NC	24	# of devices where one needs to address the issue that it is not possible
28c9d252 NC	25	# to reach the whole program memory by using 16 bit pointers.
28c9d252 NC	26
92b93329	27	fragment <<EOF
28c9d252 NC	28
	29	#include "elf32-avr.h"
	30	#include "ldctor.h"
9d7b48dc	31	#include "elf/avr.h"
28c9d252	32
92b93329	33	/* The fake file and it's corresponding section meant to hold
28c9d252 NC	34	the linker stubs if needed. */
	35
	36	static lang_input_statement_type *stub_file;
	37	static asection *avr_stub_section;
	38
839b0b3f	39	/* Variables set by the command-line parameters and transferred
28c9d252 NC	40	to the bfd without use of global shared variables. */
	41
	42	static bfd_boolean avr_no_stubs = FALSE;
	43	static bfd_boolean avr_debug_relax = FALSE;
	44	static bfd_boolean avr_debug_stubs = FALSE;
	45	static bfd_boolean avr_replace_call_ret_sequences = TRUE;
	46	static bfd_vma avr_pc_wrap_around = 0x10000000;
	47
	48	/* Transfers information to the bfd frontend. */
	49
	50	static void
	51	avr_elf_set_global_bfd_parameters (void)
	52	{
	53	elf32_avr_setup_params (& link_info,
6c19b93b AM	54	stub_file->the_bfd,
	55	avr_stub_section,
	56	avr_no_stubs,
	57	avr_debug_stubs,
	58	avr_debug_relax,
	59	avr_pc_wrap_around,
	60	avr_replace_call_ret_sequences);
28c9d252 NC	61	}
	62
	63
	64	/* Makes a conservative estimate of the trampoline section size that could
	65	be corrected later on. */
	66
	67	static void
	68	avr_elf_${EMULATION_NAME}_before_allocation (void)
	69	{
	70	int ret;
	71
	72	gld${EMULATION_NAME}_before_allocation ();
	73
fd9770d8 NC	74	if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
	75	{
	76	avr_no_stubs = TRUE;
	77	return;
	78	}
	79
6ba2ed48 NC	80	/* We only need stubs for avr6, avrxmega6, and avrxmega7. */
	81	if (strcmp ("${EMULATION_NAME}", "avr6") != 0
	82	&& strcmp ("${EMULATION_NAME}", "avrxmega6") != 0
	83	&& strcmp ("${EMULATION_NAME}", "avrxmega7") != 0)
28c9d252 NC	84	avr_no_stubs = TRUE;
	85
	86	avr_elf_set_global_bfd_parameters ();
	87
	88	/* If generating a relocatable output file, then
	89	we don't have to generate the trampolines. */
0e1862bb	90	if (bfd_link_relocatable (&link_info))
28c9d252 NC	91	avr_no_stubs = TRUE;
	92
	93	if (avr_no_stubs)
	94	return;
	95
f13a99db	96	ret = elf32_avr_setup_section_lists (link_info.output_bfd, &link_info);
28c9d252 NC	97
28c9d252 NC	98	if (ret < 0)
d003af55	99	einfo (_("%X%P: can not setup the input section list: %E\n"));
28c9d252 NC	100
	101	if (ret <= 0)
	102	return;
	103
	104	/* Call into the BFD backend to do the real "stub"-work. */
f13a99db	105	if (! elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
d003af55	106	einfo (_("%X%P: can not size stub section: %E\n"));
28c9d252 NC	107	}
	108
	109	/* This is called before the input files are opened. We create a new
	110	fake input file to hold the stub section and generate the section itself. */
	111
	112	static void
	113	avr_elf_create_output_section_statements (void)
	114	{
	115	flagword flags;
	116
fd9770d8 NC	117	if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
fd9770d8 NC	118	{
df5f2391 AM	119	einfo (_("%F%P: error: cannot change output format "
df5f2391 AM	120	"whilst linking %s binaries\n"), "AVR");
fd9770d8 NC	121	return;
	122	}
	123
28c9d252	124	stub_file = lang_add_input_file ("linker stubs",
6c19b93b AM	125	lang_input_file_is_fake_enum,
6c19b93b AM	126	NULL);
28c9d252	127
f13a99db	128	stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
28c9d252 NC	129	if (stub_file->the_bfd == NULL
28c9d252 NC	130	\|\| !bfd_set_arch_mach (stub_file->the_bfd,
6c19b93b AM	131	bfd_get_arch (link_info.output_bfd),
6c19b93b AM	132	bfd_get_mach (link_info.output_bfd)))
28c9d252	133	{
df5f2391	134	einfo (_("%X%P: can not create stub BFD: %E\n"));
28c9d252 NC	135	return;
	136	}
	137
	138	/* Now we add the stub section. */
	139
28c9d252	140	flags = (SEC_ALLOC \| SEC_LOAD \| SEC_READONLY \| SEC_CODE
6c19b93b	141	\| SEC_HAS_CONTENTS \| SEC_RELOC \| SEC_IN_MEMORY \| SEC_KEEP);
9795b468 AM	142	avr_stub_section = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
	143	".trampolines",
	144	flags);
	145	if (avr_stub_section == NULL)
28c9d252 NC	146	goto err_ret;
	147
	148	avr_stub_section->alignment_power = 1;
92b93329	149
28c9d252 NC	150	ldlang_add_file (stub_file);
	151
	152	return;
	153
6c19b93b AM	154	err_ret:
	155	einfo (_("%X%P: can not make stub section: %E\n"));
	156	return;
28c9d252 NC	157	}
	158
	159	/* Re-calculates the size of the stubs so that we won't waste space. */
	160
	161	static void
eaeb0a9d	162	avr_elf_after_allocation (void)
92b93329	163	{
28d5f677	164	if (!avr_no_stubs && ! RELAXATION_ENABLED)
28c9d252	165	{
eaeb0a9d AM	166	/* If relaxing, elf32_avr_size_stubs will be called from
eaeb0a9d AM	167	elf32_avr_relax_section. */
43315eb7	168	if (!elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
d003af55	169	einfo (_("%X%P: can not size stub section: %E\n"));
28c9d252 NC	170	}
28c9d252 NC	171
eaeb0a9d AM	172	gld${EMULATION_NAME}_after_allocation ();
	173
	174	/* Now build the linker stubs. */
	175	if (!avr_no_stubs)
	176	{
	177	if (!elf32_avr_build_stubs (&link_info))
d003af55	178	einfo (_("%X%P: can not build stubs: %E\n"));
eaeb0a9d	179	}
28c9d252 NC	180	}
28c9d252 NC	181
4d4ef6fd AM	182	static void
	183	avr_elf_before_parse (void)
	184	{
	185	/* Don't create a demand-paged executable, since this feature isn't
	186	meaningful in AVR. */
	187	config.magic_demand_paged = FALSE;
	188
	189	gld${EMULATION_NAME}_before_parse ();
	190	}
28c9d252	191
9d7b48dc AB	192	static void
	193	avr_finish (void)
	194	{
	195	bfd *abfd;
	196	bfd_boolean avr_link_relax;
	197
0e1862bb	198	if (bfd_link_relocatable (&link_info))
9d7b48dc AB	199	{
	200	avr_link_relax = TRUE;
	201	for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
6c19b93b AM	202	{
	203	/* Don't let the linker stubs prevent the final object being
	204	marked as link-relax ready. */
	205	if ((elf_elfheader (abfd)->e_flags
	206	& EF_AVR_LINKRELAX_PREPARED) == 0
	207	&& abfd != stub_file->the_bfd)
	208	{
	209	avr_link_relax = FALSE;
	210	break;
	211	}
	212	}
9d7b48dc AB	213	}
	214	else
	215	{
	216	avr_link_relax = RELAXATION_ENABLED;
	217	}
	218
	219	abfd = link_info.output_bfd;
fd9770d8 NC	220
	221	if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
	222	{
	223	if (avr_link_relax)
	224	elf_elfheader (abfd)->e_flags \|= EF_AVR_LINKRELAX_PREPARED;
	225	else
	226	elf_elfheader (abfd)->e_flags &= ~EF_AVR_LINKRELAX_PREPARED;
	227	}
9d7b48dc AB	228
	229	finish_default ();
	230	}
28c9d252 NC	231	EOF
	232
	233
	234	PARSE_AND_LIST_PROLOGUE='
	235
	236	#define OPTION_NO_CALL_RET_REPLACEMENT 301
6c19b93b AM	237	#define OPTION_PMEM_WRAP_AROUND 302
	238	#define OPTION_NO_STUBS 303
	239	#define OPTION_DEBUG_STUBS 304
	240	#define OPTION_DEBUG_RELAX 305
28c9d252 NC	241	'
	242
	243	PARSE_AND_LIST_LONGOPTS='
92b93329	244	{ "no-call-ret-replacement", no_argument,
6c19b93b	245	NULL, OPTION_NO_CALL_RET_REPLACEMENT},
92b93329	246	{ "pmem-wrap-around", required_argument,
28c9d252	247	NULL, OPTION_PMEM_WRAP_AROUND},
92b93329	248	{ "no-stubs", no_argument,
28c9d252	249	NULL, OPTION_NO_STUBS},
92b93329	250	{ "debug-stubs", no_argument,
28c9d252	251	NULL, OPTION_DEBUG_STUBS},
92b93329	252	{ "debug-relax", no_argument,
28c9d252 NC	253	NULL, OPTION_DEBUG_RELAX},
	254	'
	255
	256	PARSE_AND_LIST_OPTIONS='
442996ee AM	257	fprintf (file, _(" --pmem-wrap-around=<val> "
	258	"Make the linker relaxation machine assume that a\n"
	259	" "
eca4b721	260	" program counter wrap-around occurs at address\n"
442996ee AM	261	" "
	262	" <val>. Supported values: 8k, 16k, 32k and 64k.\n"));
	263	fprintf (file, _(" --no-call-ret-replacement "
	264	"The relaxation machine normally will\n"
	265	" "
	266	" substitute two immediately following call/ret\n"
	267	" "
	268	" instructions by a single jump instruction.\n"
	269	" "
	270	" This option disables this optimization.\n"));
	271	fprintf (file, _(" --no-stubs "
	272	"If the linker detects to attempt to access\n"
	273	" "
	274	" an instruction beyond 128k by a reloc that\n"
	275	" "
	276	" is limited to 128k max, it inserts a jump\n"
	277	" "
	278	" stub. You can de-active this with this switch.\n"));
	279	fprintf (file, _(" --debug-stubs "
	280	"Used for debugging avr-ld.\n"));
	281	fprintf (file, _(" --debug-relax "
	282	"Used for debugging avr-ld.\n"));
28c9d252 NC	283	'
	284
	285	PARSE_AND_LIST_ARGS_CASES='
	286
	287	case OPTION_PMEM_WRAP_AROUND:
92b93329	288	{
6c19b93b AM	289	/* This variable is defined in the bfd library. */
	290	if ((!strcmp (optarg,"32k")) \|\| (!strcmp (optarg,"32K")))
	291	avr_pc_wrap_around = 32768;
	292	else if ((!strcmp (optarg,"8k")) \|\| (!strcmp (optarg,"8K")))
	293	avr_pc_wrap_around = 8192;
	294	else if ((!strcmp (optarg,"16k")) \|\| (!strcmp (optarg,"16K")))
	295	avr_pc_wrap_around = 16384;
	296	else if ((!strcmp (optarg,"64k")) \|\| (!strcmp (optarg,"64K")))
	297	avr_pc_wrap_around = 0x10000;
	298	else
	299	return FALSE;
28c9d252 NC	300	}
	301	break;
	302
	303	case OPTION_DEBUG_STUBS:
	304	avr_debug_stubs = TRUE;
	305	break;
	306
	307	case OPTION_DEBUG_RELAX:
	308	avr_debug_relax = TRUE;
	309	break;
	310
	311	case OPTION_NO_STUBS:
	312	avr_no_stubs = TRUE;
	313	break;
	314
	315	case OPTION_NO_CALL_RET_REPLACEMENT:
	316	{
6c19b93b AM	317	/* This variable is defined in the bfd library. */
6c19b93b AM	318	avr_replace_call_ret_sequences = FALSE;
28c9d252 NC	319	}
	320	break;
	321	'
	322
	323	#
	324	# Put these extra avr-elf routines in ld_${EMULATION_NAME}_emulation
	325	#
4d4ef6fd	326	LDEMUL_BEFORE_PARSE=avr_elf_before_parse
28c9d252	327	LDEMUL_BEFORE_ALLOCATION=avr_elf_${EMULATION_NAME}_before_allocation
eaeb0a9d	328	LDEMUL_AFTER_ALLOCATION=avr_elf_after_allocation
28c9d252	329	LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=avr_elf_create_output_section_statements
9d7b48dc	330	LDEMUL_FINISH=avr_finish