[deliverable/binutils-gdb.git] / ld / emultempl / ppc32elf.em

# This shell script emits a C file. -*- C -*-
#   Copyright (C) 2003-2018 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 powerpc32-elf
# specific routines.
#
fragment <<EOF

#include "elf32-ppc.h"
#include "ldlex.h"
#include "ldlang.h"

#define is_ppc_elf(bfd) \
  (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   && elf_object_id (bfd) == PPC32_ELF_DATA)

/* Whether to run tls optimization.  */
static int notlsopt = 0;

/* Choose the correct place for .got.  */
static int old_got = 0;

static struct ppc_elf_params params = { PLT_UNSET, 0, 1, -1,
					0, 0, 0, 0, 0, 0, 0 };

static void
ppc_after_open_output (void)
{
  if (params.emit_stub_syms < 0)
    params.emit_stub_syms = (link_info.emitrelocations
			     || bfd_link_pic (&link_info));
  if (params.pagesize == 0)
    params.pagesize = config.commonpagesize;
  ppc_elf_link_params (&link_info, &params);
}

EOF

# No --secure-plt, --bss-plt, or --sdata-got for vxworks.
if test -z "$VXWORKS_BASE_EM_FILE" ; then
  fragment <<EOF
static void
ppc_after_check_relocs (void)
{
  if (is_ppc_elf (link_info.output_bfd))
    {
      int new_plt;
      int keep_new;
      unsigned int num_plt;
      unsigned int num_got;
      lang_output_section_statement_type *os;
      lang_output_section_statement_type *plt_os[2];
      lang_output_section_statement_type *got_os[2];

      new_plt = ppc_elf_select_plt_layout (link_info.output_bfd, &link_info);
      if (new_plt < 0)
	einfo (_("%X%P: select_plt_layout problem %E\n"));

      num_got = 0;
      num_plt = 0;
      for (os = &lang_output_section_statement.head->output_section_statement;
	   os != NULL;
	   os = os->next)
	{
	  if (os->constraint == SPECIAL && strcmp (os->name, ".plt") == 0)
	    {
	      if (num_plt < 2)
		plt_os[num_plt] = os;
	      ++num_plt;
	    }
	  if (os->constraint == SPECIAL && strcmp (os->name, ".got") == 0)
	    {
	      if (num_got < 2)
		got_os[num_got] = os;
	      ++num_got;
	    }
	}

      keep_new = new_plt == 1 ? 0 : -1;
      if (num_plt == 2)
	{
	  plt_os[0]->constraint = keep_new;
	  plt_os[1]->constraint = ~keep_new;
	}
      if (num_got == 2)
	{
	  if (old_got)
	    keep_new = -1;
	  got_os[0]->constraint = keep_new;
	  got_os[1]->constraint = ~keep_new;
	}
    }

  after_check_relocs_default ();
}

EOF
fi
fragment <<EOF
static void
ppc_before_allocation (void)
{
  if (is_ppc_elf (link_info.output_bfd))
    {
      if (ppc_elf_tls_setup (link_info.output_bfd, &link_info)
	  && !notlsopt)
	{
	  if (!ppc_elf_tls_optimize (link_info.output_bfd, &link_info))
	    {
	      einfo (_("%X%P: TLS problem %E\n"));
	      return;
	    }
	}
    }

  gld${EMULATION_NAME}_before_allocation ();

  ppc_elf_maybe_strip_sdata_syms (&link_info);

  if (RELAXATION_ENABLED)
    params.branch_trampolines = 1;

  /* Turn on relaxation if executable sections have addresses that
     might make branches overflow.  */
  else if (!RELAXATION_DISABLED_BY_USER)
    {
      bfd_vma low = (bfd_vma) -1;
      bfd_vma high = 0;
      asection *o;

      /* Run lang_size_sections (if not already done).  */
      if (expld.phase != lang_mark_phase_enum)
	{
	  expld.phase = lang_mark_phase_enum;
	  expld.dataseg.phase = exp_seg_none;
	  one_lang_size_sections_pass (NULL, FALSE);
	  lang_reset_memory_regions ();
	}

      for (o = link_info.output_bfd->sections; o != NULL; o = o->next)
	{
	  if ((o->flags & (SEC_ALLOC | SEC_CODE)) != (SEC_ALLOC | SEC_CODE))
	    continue;
	  if (o->rawsize == 0)
	    continue;
	  if (low > o->vma)
	    low = o->vma;
	  if (high < o->vma + o->rawsize - 1)
	    high = o->vma + o->rawsize - 1;
	}
      if (high > low && high - low > (1 << 25) - 1)
	params.branch_trampolines = 1;
    }

  if (params.branch_trampolines
      || params.ppc476_workaround
      || params.pic_fixup > 0)
    ENABLE_RELAXATION;
}

/* Replaces default zero fill padding in executable sections with
   "ba 0" instructions.  This works around the ppc476 icache bug if we
   have a function pointer tail call near the end of a page, some
   small amount of padding, then the function called at the beginning
   of the next page.  If the "ba 0" is ever executed we should hit a
   segv, so it's almost as good as an illegal instruction (zero).  */

static void
no_zero_padding (lang_statement_union_type *l)
{
  if (l->header.type == lang_padding_statement_enum
      && l->padding_statement.size != 0
      && l->padding_statement.output_section != NULL
      && (l->padding_statement.output_section->flags & SEC_CODE) != 0
      && l->padding_statement.fill->size == 0)
    {
      struct _ppc_fill_type
      {
	size_t size;
	unsigned char data[4];
      };
      static struct _ppc_fill_type fill_be = { 4, {0x48, 0, 0, 2} };
      static struct _ppc_fill_type fill_le = { 4, {2, 0, 0, 0x48} };

      if (bfd_big_endian (link_info.output_bfd))
	l->padding_statement.fill = (struct _fill_type *) &fill_be;
      else
	l->padding_statement.fill = (struct _fill_type *) &fill_le;
    }
}

static void
ppc_finish (void)
{
  if (params.ppc476_workaround)
    lang_for_each_statement (no_zero_padding);
  finish_default ();
}

EOF

if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then
  fragment <<EOF
/* Special handling for embedded SPU executables.  */
extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);
static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *);

static bfd_boolean
ppc_recognized_file (lang_input_statement_type *entry)
{
  if (embedded_spu_file (entry, "-m32"))
    return TRUE;

  return gld${EMULATION_NAME}_load_symbols (entry);
}

EOF
LDEMUL_RECOGNIZED_FILE=ppc_recognized_file
fi

# Define some shell vars to insert bits of code into the standard elf
# parse_args and list_options functions.
#
PARSE_AND_LIST_PROLOGUE=${PARSE_AND_LIST_PROLOGUE}'
enum ppc32_opt
{
  OPTION_NO_TLS_OPT = 321,
  OPTION_NO_TLS_GET_ADDR_OPT,
  OPTION_NEW_PLT,
  OPTION_OLD_PLT,
  OPTION_SPECULATE_INDIRECT_JUMPS,
  OPTION_NO_SPECULATE_INDIRECT_JUMPS,
  OPTION_PLT_ALIGN,
  OPTION_NO_PLT_ALIGN,
  OPTION_OLD_GOT,
  OPTION_STUBSYMS,
  OPTION_NO_STUBSYMS,
  OPTION_PPC476_WORKAROUND,
  OPTION_NO_PPC476_WORKAROUND,
  OPTION_NO_PICFIXUP,
  OPTION_VLE_RELOC_FIXUP
};
'

PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
  { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
  { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
  { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT },
  { "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT },'
if test -z "$VXWORKS_BASE_EM_FILE" ; then
  PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
  { "secure-plt", no_argument, NULL, OPTION_NEW_PLT },
  { "bss-plt", no_argument, NULL, OPTION_OLD_PLT },
  { "speculate-indirect-jumps", no_argument, NULL, OPTION_SPECULATE_INDIRECT_JUMPS },
  { "no-speculate-indirect-jumps", no_argument, NULL, OPTION_NO_SPECULATE_INDIRECT_JUMPS },
  { "plt-align", optional_argument, NULL, OPTION_PLT_ALIGN },
  { "no-plt-align", no_argument, NULL, OPTION_NO_PLT_ALIGN },
  { "sdata-got", no_argument, NULL, OPTION_OLD_GOT },'
fi
PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
  { "ppc476-workaround", optional_argument, NULL, OPTION_PPC476_WORKAROUND },
  { "no-ppc476-workaround", no_argument, NULL, OPTION_NO_PPC476_WORKAROUND },
  { "no-pic-fixup", no_argument, NULL, OPTION_NO_PICFIXUP },
  { "vle-reloc-fixup", no_argument, NULL, OPTION_VLE_RELOC_FIXUP },
'

PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
  fprintf (file, _("\
  --emit-stub-syms            Label linker stubs with a symbol.\n"
		   ));
  fprintf (file, _("\
  --no-emit-stub-syms         Don'\''t label linker stubs with a symbol.\n"
		   ));
  fprintf (file, _("\
  --no-tls-optimize           Don'\''t try to optimize TLS accesses.\n"
		   ));
  fprintf (file, _("\
  --no-tls-get-addr-optimize  Don'\''t use a special __tls_get_addr call.\n"
		   ));'
if test -z "$VXWORKS_BASE_EM_FILE" ; then
  PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'\
  fprintf (file, _("\
  --secure-plt                Use new-style PLT if possible.\n"
		   ));
  fprintf (file, _("\
  --bss-plt                   Force old-style BSS PLT.\n"
		   ));
  fprintf (file, _("\
  --speculate-indirect-jumps  PLT call stubs without speculation barrier.\n"
		   ));
  fprintf (file, _("\
  --no-speculate-indirect-jumps PLT call stubs with speculation barrier.\n"
		   ));
  fprintf (file, _("\
  --plt-align                 Align PLT call stubs to fit cache lines.\n"
		   ));
  fprintf (file, _("\
  --no-plt-align              Dont'\''t align individual PLT call stubs.\n"
		   ));
  fprintf (file, _("\
  --sdata-got                 Force GOT location just before .sdata.\n"
		   ));'
fi
PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'\
  fprintf (file, _("\
  --ppc476-workaround [=pagesize]\n\
                              Avoid a cache bug on ppc476.\n"
		   ));
  fprintf (file, _("\
  --no-ppc476-workaround      Disable workaround.\n"
		   ));
  fprintf (file, _("\
  --no-pic-fixup              Don'\''t edit non-pic to pic.\n"
		   ));
  fprintf (file, _("\
  --vle-reloc-fixup           Correct old object file 16A/16D relocation.\n"
		   ));
'

PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
    case OPTION_STUBSYMS:
      params.emit_stub_syms = 1;
      break;

    case OPTION_NO_STUBSYMS:
      params.emit_stub_syms = 0;
      break;

    case OPTION_NO_TLS_OPT:
      notlsopt = 1;
      break;

    case OPTION_NO_TLS_GET_ADDR_OPT:
      params.no_tls_get_addr_opt = 1;
      break;

    case OPTION_NEW_PLT:
      params.plt_style = PLT_NEW;
      break;

    case OPTION_OLD_PLT:
      params.plt_style = PLT_OLD;
      break;

    case OPTION_SPECULATE_INDIRECT_JUMPS:
      params.speculate_indirect_jumps = 1;
      break;

    case OPTION_NO_SPECULATE_INDIRECT_JUMPS:
      params.speculate_indirect_jumps = 0;
      break;

    case OPTION_PLT_ALIGN:
      if (optarg != NULL)
	{
	  char *end;
	  unsigned long val = strtoul (optarg, &end, 0);
	  if (*end || val > 5)
	    einfo (_("%P%F: invalid --plt-align `%s'\''\n"), optarg);
	  params.plt_stub_align = val;
	}
      else
	params.plt_stub_align = 5;
      break;

    case OPTION_NO_PLT_ALIGN:
      params.plt_stub_align = 0;
      break;

    case OPTION_OLD_GOT:
      old_got = 1;
      break;

    case OPTION_TRADITIONAL_FORMAT:
      notlsopt = 1;
      params.no_tls_get_addr_opt = 1;
      return FALSE;

    case OPTION_PPC476_WORKAROUND:
      params.ppc476_workaround = 1;
      if (optarg != NULL)
	{
	  char *end;
	  params.pagesize = strtoul (optarg, &end, 0);
	  if (*end
	      || (params.pagesize < 4096 && params.pagesize != 0)
	      || params.pagesize != (params.pagesize & -params.pagesize))
	    einfo (_("%P%F: invalid pagesize `%s'\''\n"), optarg);
	}
      break;

    case OPTION_NO_PPC476_WORKAROUND:
      params.ppc476_workaround = 0;
      break;

    case OPTION_NO_PICFIXUP:
      params.pic_fixup = -1;
      break;

    case OPTION_VLE_RELOC_FIXUP:
      params.vle_reloc_fixup = 1;
      break;
'

# Put these extra ppc32elf routines in ld_${EMULATION_NAME}_emulation
#
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_after_open_output
if test -z "$VXWORKS_BASE_EM_FILE" ; then
  LDEMUL_AFTER_CHECK_RELOCS=ppc_after_check_relocs
fi
LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation
LDEMUL_FINISH=ppc_finish
Commit	Line	Data
f9e6bfa8	1	# This shell script emits a C file. -- C --
219d1afa	2	# Copyright (C) 2003-2018 Free Software Foundation, Inc.
f9e6bfa8	3	#
f96b4a7b	4	# This file is part of the GNU Binutils.
f9e6bfa8 AM	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
f9e6bfa8 AM	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.
f9e6bfa8 AM	20	#
f9e6bfa8 AM	21
c9a2f333	22	# This file is sourced from elf32.em, and defines extra powerpc32-elf
f9e6bfa8 AM	23	# specific routines.
f9e6bfa8 AM	24	#
92b93329	25	fragment <<EOF
f9e6bfa8	26
f9e6bfa8	27	#include "elf32-ppc.h"
f05eb3b7	28	#include "ldlex.h"
b4ab4364	29	#include "ldlang.h"
f9e6bfa8	30
5503fea1 AM	31	#define is_ppc_elf(bfd) \
5503fea1 AM	32	(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6	33	&& elf_object_id (bfd) == PPC32_ELF_DATA)
c9a2f333	34
f9e6bfa8 AM	35	/* Whether to run tls optimization. */
	36	static int notlsopt = 0;
	37
5446cbdf	38	/* Choose the correct place for .got. */
0cf7d72c AM	39	static int old_got = 0;
0cf7d72c AM	40
1be5d8d3	41	static struct ppc_elf_params params = { PLT_UNSET, 0, 1, -1,
9e390558	42	0, 0, 0, 0, 0, 0, 0 };
5446cbdf AM	43
	44	static void
	45	ppc_after_open_output (void)
	46	{
	47	if (params.emit_stub_syms < 0)
0e1862bb L	48	params.emit_stub_syms = (link_info.emitrelocations
0e1862bb L	49	\|\| bfd_link_pic (&link_info));
76e7a751 AM	50	if (params.pagesize == 0)
76e7a751 AM	51	params.pagesize = config.commonpagesize;
5446cbdf AM	52	ppc_elf_link_params (&link_info, &params);
	53	}
	54
db434ba0 AM	55	EOF
	56
	57	# No --secure-plt, --bss-plt, or --sdata-got for vxworks.
	58	if test -z "$VXWORKS_BASE_EM_FILE" ; then
	59	fragment <<EOF
0cf7d72c	60	static void
5c3261b0	61	ppc_after_check_relocs (void)
0cf7d72c	62	{
5503fea1	63	if (is_ppc_elf (link_info.output_bfd))
0cf7d72c AM	64	{
	65	int new_plt;
	66	int keep_new;
	67	unsigned int num_plt;
	68	unsigned int num_got;
	69	lang_output_section_statement_type *os;
	70	lang_output_section_statement_type *plt_os[2];
	71	lang_output_section_statement_type *got_os[2];
	72
5446cbdf	73	new_plt = ppc_elf_select_plt_layout (link_info.output_bfd, &link_info);
0cf7d72c	74	if (new_plt < 0)
d003af55	75	einfo (_("%X%P: select_plt_layout problem %E\n"));
0cf7d72c AM	76
	77	num_got = 0;
	78	num_plt = 0;
	79	for (os = &lang_output_section_statement.head->output_section_statement;
	80	os != NULL;
	81	os = os->next)
	82	{
	83	if (os->constraint == SPECIAL && strcmp (os->name, ".plt") == 0)
	84	{
	85	if (num_plt < 2)
	86	plt_os[num_plt] = os;
	87	++num_plt;
	88	}
	89	if (os->constraint == SPECIAL && strcmp (os->name, ".got") == 0)
	90	{
	91	if (num_got < 2)
	92	got_os[num_got] = os;
	93	++num_got;
	94	}
	95	}
	96
	97	keep_new = new_plt == 1 ? 0 : -1;
	98	if (num_plt == 2)
	99	{
	100	plt_os[0]->constraint = keep_new;
	101	plt_os[1]->constraint = ~keep_new;
	102	}
	103	if (num_got == 2)
	104	{
	105	if (old_got)
	106	keep_new = -1;
	107	got_os[0]->constraint = keep_new;
	108	got_os[1]->constraint = ~keep_new;
	109	}
	110	}
	111
5c3261b0	112	after_check_relocs_default ();
0cf7d72c AM	113	}
0cf7d72c AM	114
db434ba0 AM	115	EOF
	116	fi
	117	fragment <<EOF
f9e6bfa8	118	static void
7e5d8d48	119	ppc_before_allocation (void)
f9e6bfa8	120	{
5503fea1	121	if (is_ppc_elf (link_info.output_bfd))
f9e6bfa8	122	{
5446cbdf	123	if (ppc_elf_tls_setup (link_info.output_bfd, &link_info)
a7f2871e	124	&& !notlsopt)
f9e6bfa8	125	{
f13a99db	126	if (!ppc_elf_tls_optimize (link_info.output_bfd, &link_info))
f9e6bfa8	127	{
d003af55	128	einfo (_("%X%P: TLS problem %E\n"));
f9e6bfa8 AM	129	return;
	130	}
	131	}
	132	}
4135c73b	133
f9e6bfa8	134	gld${EMULATION_NAME}_before_allocation ();
4135c73b	135
93d1b056 AM	136	ppc_elf_maybe_strip_sdata_syms (&link_info);
93d1b056 AM	137
5446cbdf AM	138	if (RELAXATION_ENABLED)
	139	params.branch_trampolines = 1;
	140
4135c73b AM	141	/* Turn on relaxation if executable sections have addresses that
4135c73b AM	142	might make branches overflow. */
5446cbdf	143	else if (!RELAXATION_DISABLED_BY_USER)
4135c73b AM	144	{
	145	bfd_vma low = (bfd_vma) -1;
	146	bfd_vma high = 0;
	147	asection *o;
	148
	149	/* Run lang_size_sections (if not already done). */
	150	if (expld.phase != lang_mark_phase_enum)
	151	{
	152	expld.phase = lang_mark_phase_enum;
58e6cc77	153	expld.dataseg.phase = exp_seg_none;
4135c73b AM	154	one_lang_size_sections_pass (NULL, FALSE);
	155	lang_reset_memory_regions ();
	156	}
	157
	158	for (o = link_info.output_bfd->sections; o != NULL; o = o->next)
	159	{
	160	if ((o->flags & (SEC_ALLOC \| SEC_CODE)) != (SEC_ALLOC \| SEC_CODE))
	161	continue;
07088e95	162	if (o->rawsize == 0)
4135c73b AM	163	continue;
	164	if (low > o->vma)
	165	low = o->vma;
07088e95 AM	166	if (high < o->vma + o->rawsize - 1)
07088e95 AM	167	high = o->vma + o->rawsize - 1;
4135c73b AM	168	}
4135c73b AM	169	if (high > low && high - low > (1 << 25) - 1)
5446cbdf	170	params.branch_trampolines = 1;
4135c73b	171	}
5446cbdf	172
d3e454b9 AM	173	if (params.branch_trampolines
	174	\|\| params.ppc476_workaround
	175	\|\| params.pic_fixup > 0)
5446cbdf	176	ENABLE_RELAXATION;
f9e6bfa8 AM	177	}
f9e6bfa8 AM	178
b4ab4364 AM	179	/* Replaces default zero fill padding in executable sections with
	180	"ba 0" instructions. This works around the ppc476 icache bug if we
	181	have a function pointer tail call near the end of a page, some
	182	small amount of padding, then the function called at the beginning
	183	of the next page. If the "ba 0" is ever executed we should hit a
	184	segv, so it's almost as good as an illegal instruction (zero). */
	185
	186	static void
	187	no_zero_padding (lang_statement_union_type *l)
	188	{
	189	if (l->header.type == lang_padding_statement_enum
	190	&& l->padding_statement.size != 0
	191	&& l->padding_statement.output_section != NULL
	192	&& (l->padding_statement.output_section->flags & SEC_CODE) != 0
	193	&& l->padding_statement.fill->size == 0)
	194	{
	195	struct _ppc_fill_type
	196	{
	197	size_t size;
	198	unsigned char data[4];
	199	};
	200	static struct _ppc_fill_type fill_be = { 4, {0x48, 0, 0, 2} };
	201	static struct _ppc_fill_type fill_le = { 4, {2, 0, 0, 0x48} };
	202
	203	if (bfd_big_endian (link_info.output_bfd))
	204	l->padding_statement.fill = (struct _fill_type *) &fill_be;
	205	else
	206	l->padding_statement.fill = (struct _fill_type *) &fill_le;
	207	}
	208	}
	209
	210	static void
	211	ppc_finish (void)
	212	{
	213	if (params.ppc476_workaround)
	214	lang_for_each_statement (no_zero_padding);
	215	finish_default ();
	216	}
	217
f9e6bfa8 AM	218	EOF
f9e6bfa8 AM	219
dc27aea4	220	if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then
92b93329	221	fragment <<EOF
dc27aea4 AM	222	/* Special handling for embedded SPU executables. */
	223	extern bfd_boolean embedded_spu_file (lang_input_statement_type , const char );
	224	static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *);
	225
	226	static bfd_boolean
	227	ppc_recognized_file (lang_input_statement_type *entry)
	228	{
	229	if (embedded_spu_file (entry, "-m32"))
	230	return TRUE;
	231
	232	return gld${EMULATION_NAME}_load_symbols (entry);
	233	}
	234
	235	EOF
	236	LDEMUL_RECOGNIZED_FILE=ppc_recognized_file
	237	fi
	238
f9e6bfa8 AM	239	# Define some shell vars to insert bits of code into the standard elf
	240	# parse_args and list_options functions.
	241	#
58d180e8	242	PARSE_AND_LIST_PROLOGUE=${PARSE_AND_LIST_PROLOGUE}'
9e390558 AM	243	enum ppc32_opt
	244	{
	245	OPTION_NO_TLS_OPT = 321,
	246	OPTION_NO_TLS_GET_ADDR_OPT,
	247	OPTION_NEW_PLT,
	248	OPTION_OLD_PLT,
1be5d8d3 AM	249	OPTION_SPECULATE_INDIRECT_JUMPS,
1be5d8d3 AM	250	OPTION_NO_SPECULATE_INDIRECT_JUMPS,
9e390558 AM	251	OPTION_PLT_ALIGN,
	252	OPTION_NO_PLT_ALIGN,
	253	OPTION_OLD_GOT,
	254	OPTION_STUBSYMS,
	255	OPTION_NO_STUBSYMS,
	256	OPTION_PPC476_WORKAROUND,
	257	OPTION_NO_PPC476_WORKAROUND,
	258	OPTION_NO_PICFIXUP,
	259	OPTION_VLE_RELOC_FIXUP
	260	};
f9e6bfa8 AM	261	'
f9e6bfa8 AM	262
58d180e8	263	PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
0ba07910	264	{ "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
b02c4cfa	265	{ "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
f9e6bfa8	266	{ "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT },
db434ba0 AM	267	{ "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT },'
	268	if test -z "$VXWORKS_BASE_EM_FILE" ; then
	269	PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
016687f8	270	{ "secure-plt", no_argument, NULL, OPTION_NEW_PLT },
0cf7d72c	271	{ "bss-plt", no_argument, NULL, OPTION_OLD_PLT },
1be5d8d3 AM	272	{ "speculate-indirect-jumps", no_argument, NULL, OPTION_SPECULATE_INDIRECT_JUMPS },
1be5d8d3 AM	273	{ "no-speculate-indirect-jumps", no_argument, NULL, OPTION_NO_SPECULATE_INDIRECT_JUMPS },
691d2e9a	274	{ "plt-align", optional_argument, NULL, OPTION_PLT_ALIGN },
9e390558	275	{ "no-plt-align", no_argument, NULL, OPTION_NO_PLT_ALIGN },
db434ba0 AM	276	{ "sdata-got", no_argument, NULL, OPTION_OLD_GOT },'
	277	fi
	278	PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
5446cbdf AM	279	{ "ppc476-workaround", optional_argument, NULL, OPTION_PPC476_WORKAROUND },
5446cbdf AM	280	{ "no-ppc476-workaround", no_argument, NULL, OPTION_NO_PPC476_WORKAROUND },
d3e454b9	281	{ "no-pic-fixup", no_argument, NULL, OPTION_NO_PICFIXUP },
08dc996f	282	{ "vle-reloc-fixup", no_argument, NULL, OPTION_VLE_RELOC_FIXUP },
f9e6bfa8 AM	283	'
f9e6bfa8 AM	284
58d180e8	285	PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
f9e6bfa8	286	fprintf (file, _("\
9e390558 AM	287	--emit-stub-syms Label linker stubs with a symbol.\n"
	288	));
	289	fprintf (file, _("\
	290	--no-emit-stub-syms Don'\''t label linker stubs with a symbol.\n"
	291	));
	292	fprintf (file, _("\
	293	--no-tls-optimize Don'\''t try to optimize TLS accesses.\n"
	294	));
	295	fprintf (file, _("\
	296	--no-tls-get-addr-optimize Don'\''t use a special __tls_get_addr call.\n"
	297	));'
db434ba0 AM	298	if test -z "$VXWORKS_BASE_EM_FILE" ; then
db434ba0 AM	299	PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'\
9e390558 AM	300	fprintf (file, _("\
	301	--secure-plt Use new-style PLT if possible.\n"
	302	));
	303	fprintf (file, _("\
	304	--bss-plt Force old-style BSS PLT.\n"
	305	));
	306	fprintf (file, _("\
1be5d8d3 AM	307	--speculate-indirect-jumps PLT call stubs without speculation barrier.\n"
	308	));
	309	fprintf (file, _("\
	310	--no-speculate-indirect-jumps PLT call stubs with speculation barrier.\n"
	311	));
	312	fprintf (file, _("\
9e390558 AM	313	--plt-align Align PLT call stubs to fit cache lines.\n"
	314	));
	315	fprintf (file, _("\
	316	--no-plt-align Dont'\''t align individual PLT call stubs.\n"
	317	));
	318	fprintf (file, _("\
	319	--sdata-got Force GOT location just before .sdata.\n"
	320	));'
db434ba0 AM	321	fi
db434ba0 AM	322	PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'\
9e390558	323	fprintf (file, _("\
5446cbdf	324	--ppc476-workaround [=pagesize]\n\
9e390558 AM	325	Avoid a cache bug on ppc476.\n"
	326	));
	327	fprintf (file, _("\
	328	--no-ppc476-workaround Disable workaround.\n"
	329	));
	330	fprintf (file, _("\
	331	--no-pic-fixup Don'\''t edit non-pic to pic.\n"
	332	));
	333	fprintf (file, _("\
08dc996f	334	--vle-reloc-fixup Correct old object file 16A/16D relocation.\n"
f9e6bfa8 AM	335	));
	336	'
	337
58d180e8	338	PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
0ba07910	339	case OPTION_STUBSYMS:
5446cbdf	340	params.emit_stub_syms = 1;
0ba07910 AM	341	break;
0ba07910 AM	342
b02c4cfa	343	case OPTION_NO_STUBSYMS:
5446cbdf	344	params.emit_stub_syms = 0;
b02c4cfa AM	345	break;
b02c4cfa AM	346
f9e6bfa8 AM	347	case OPTION_NO_TLS_OPT:
	348	notlsopt = 1;
	349	break;
0cf7d72c	350
a7f2871e	351	case OPTION_NO_TLS_GET_ADDR_OPT:
5446cbdf	352	params.no_tls_get_addr_opt = 1;
a7f2871e AM	353	break;
a7f2871e AM	354
016687f8	355	case OPTION_NEW_PLT:
5446cbdf	356	params.plt_style = PLT_NEW;
016687f8 AM	357	break;
016687f8 AM	358
0cf7d72c	359	case OPTION_OLD_PLT:
5446cbdf	360	params.plt_style = PLT_OLD;
0cf7d72c AM	361	break;
0cf7d72c AM	362
1be5d8d3 AM	363	case OPTION_SPECULATE_INDIRECT_JUMPS:
	364	params.speculate_indirect_jumps = 1;
	365	break;
	366
	367	case OPTION_NO_SPECULATE_INDIRECT_JUMPS:
	368	params.speculate_indirect_jumps = 0;
	369	break;
	370
9e390558	371	case OPTION_PLT_ALIGN:
691d2e9a AM	372	if (optarg != NULL)
	373	{
	374	char *end;
	375	unsigned long val = strtoul (optarg, &end, 0);
	376	if (*end \|\| val > 5)
	377	einfo (_("%P%F: invalid --plt-align `%s'\''\n"), optarg);
	378	params.plt_stub_align = val;
	379	}
	380	else
	381	params.plt_stub_align = 5;
9e390558 AM	382	break;
	383
	384	case OPTION_NO_PLT_ALIGN:
	385	params.plt_stub_align = 0;
	386	break;
	387
0cf7d72c AM	388	case OPTION_OLD_GOT:
	389	old_got = 1;
	390	break;
f05eb3b7 AM	391
	392	case OPTION_TRADITIONAL_FORMAT:
	393	notlsopt = 1;
5446cbdf	394	params.no_tls_get_addr_opt = 1;
f05eb3b7	395	return FALSE;
5446cbdf AM	396
	397	case OPTION_PPC476_WORKAROUND:
	398	params.ppc476_workaround = 1;
	399	if (optarg != NULL)
	400	{
	401	char *end;
76e7a751	402	params.pagesize = strtoul (optarg, &end, 0);
5446cbdf	403	if (*end
76e7a751 AM	404	\|\| (params.pagesize < 4096 && params.pagesize != 0)
76e7a751 AM	405	\|\| params.pagesize != (params.pagesize & -params.pagesize))
5446cbdf AM	406	einfo (_("%P%F: invalid pagesize `%s'\''\n"), optarg);
	407	}
	408	break;
	409
	410	case OPTION_NO_PPC476_WORKAROUND:
	411	params.ppc476_workaround = 0;
	412	break;
d3e454b9 AM	413
	414	case OPTION_NO_PICFIXUP:
	415	params.pic_fixup = -1;
	416	break;
08dc996f AM	417
	418	case OPTION_VLE_RELOC_FIXUP:
	419	params.vle_reloc_fixup = 1;
	420	break;
f9e6bfa8 AM	421	'
f9e6bfa8 AM	422
c9a2f333	423	# Put these extra ppc32elf routines in ld_${EMULATION_NAME}_emulation
f9e6bfa8	424	#
5446cbdf	425	LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_after_open_output
db434ba0	426	if test -z "$VXWORKS_BASE_EM_FILE" ; then
5c3261b0	427	LDEMUL_AFTER_CHECK_RELOCS=ppc_after_check_relocs
db434ba0	428	fi
f9e6bfa8	429	LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation
b4ab4364	430	LDEMUL_FINISH=ppc_finish