[binutils.git] / bfd / mach-o-i386.c

/* Intel i386 Mach-O support for BFD.
   Copyright (C) 2009-2015 Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   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.  */

#include "sysdep.h"
#include "mach-o.h"
#include "bfd.h"
#include "libbfd.h"
#include "libiberty.h"
#include "mach-o/reloc.h"

#define bfd_mach_o_object_p bfd_mach_o_i386_object_p
#define bfd_mach_o_core_p bfd_mach_o_i386_core_p
#define bfd_mach_o_mkobject bfd_mach_o_i386_mkobject

static const bfd_target *
bfd_mach_o_i386_object_p (bfd *abfd)
{
  return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_I386);
}

static const bfd_target *
bfd_mach_o_i386_core_p (bfd *abfd)
{
  return bfd_mach_o_header_p (abfd,
                              BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_I386);
}

static bfd_boolean
bfd_mach_o_i386_mkobject (bfd *abfd)
{
  bfd_mach_o_data_struct *mdata;

  if (!bfd_mach_o_mkobject_init (abfd))
    return FALSE;

  mdata = bfd_mach_o_get_data (abfd);
  mdata->header.magic = BFD_MACH_O_MH_MAGIC;
  mdata->header.cputype = BFD_MACH_O_CPU_TYPE_I386;
  mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
  mdata->header.byteorder = BFD_ENDIAN_LITTLE;
  mdata->header.version = 1;

  return TRUE;
}

static reloc_howto_type i386_howto_table[]=
{
  /* 0 */
  HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "32",
	FALSE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO(BFD_RELOC_16, 0, 1, 16, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "16",
	FALSE, 0xffff, 0xffff, FALSE),
  HOWTO(BFD_RELOC_8, 0, 0, 8, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "8",
	FALSE, 0xff, 0xff, FALSE),
  HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
	complain_overflow_bitfield,
	NULL, "DISP32",
	FALSE, 0xffffffff, 0xffffffff, TRUE),
  /* 4 */
  HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
	complain_overflow_bitfield,
	NULL, "DISP16",
	FALSE, 0xffff, 0xffff, TRUE),
  HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "SECTDIFF_32",
	FALSE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 2, 32, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "LSECTDIFF_32",
	FALSE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "PAIR_32",
	FALSE, 0xffffffff, 0xffffffff, FALSE),
  /* 8 */
  HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 1, 16, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "SECTDIFF_16",
	FALSE, 0xffff, 0xffff, FALSE),
  HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 1, 16, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "LSECTDIFF_16",
	FALSE, 0xffff, 0xffff, FALSE),
  HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 1, 16, FALSE, 0,
	complain_overflow_bitfield,
	NULL, "PAIR_16",
	FALSE, 0xffff, 0xffff, FALSE),
};

static bfd_boolean
bfd_mach_o_i386_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
{
  if (reloc->r_scattered)
    {
      switch (reloc->r_type)
        {
        case BFD_MACH_O_GENERIC_RELOC_PAIR:
          if (reloc->r_length == 2)
            {
	      res->howto = &i386_howto_table[7];
	      res->address = res[-1].address;
	      return TRUE;
            }
          else if (reloc->r_length == 1)
	    {
	      res->howto = &i386_howto_table[10];
	      res->address = res[-1].address;
	      return TRUE;
	    }
          return FALSE;
        case BFD_MACH_O_GENERIC_RELOC_SECTDIFF:
          if (reloc->r_length == 2)
            {
	      res->howto = &i386_howto_table[5];
	      return TRUE;
            }
          else if (reloc->r_length == 1)
            {
	      res->howto = &i386_howto_table[8];
	      return TRUE;
            }
          return FALSE;
        case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF:
          if (reloc->r_length == 2)
            {
	      res->howto = &i386_howto_table[6];
	      return TRUE;
            }
          else if (reloc->r_length == 1)
            {
	      res->howto = &i386_howto_table[9];
	      return TRUE;
            }
          return FALSE;
        default:
          return FALSE;
        }
    }
  else
    {
      switch (reloc->r_type)
        {
        case BFD_MACH_O_GENERIC_RELOC_VANILLA:
          switch ((reloc->r_length << 1) | reloc->r_pcrel)
            {
            case 0: /* len = 0, pcrel = 0  */
              res->howto = &i386_howto_table[2];
              return TRUE;
            case 2: /* len = 1, pcrel = 0  */
              res->howto = &i386_howto_table[1];
              return TRUE;
            case 3: /* len = 1, pcrel = 1  */
              res->howto = &i386_howto_table[4];
              return TRUE;
            case 4: /* len = 2, pcrel = 0  */
              res->howto = &i386_howto_table[0];
              return TRUE;
            case 5: /* len = 2, pcrel = 1  */
              res->howto = &i386_howto_table[3];
              return TRUE;
            default:
              return FALSE;
            }
          break;
        default:
          return FALSE;
        }
    }
}

static bfd_boolean
bfd_mach_o_i386_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
{
  rinfo->r_address = rel->address;
  switch (rel->howto->type)
    {
    case BFD_RELOC_32:
    case BFD_RELOC_32_PCREL:
    case BFD_RELOC_16:
    case BFD_RELOC_16_PCREL:
    case BFD_RELOC_8:
      rinfo->r_scattered = 0;
      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_VANILLA;
      rinfo->r_pcrel = rel->howto->pc_relative;
      rinfo->r_length = rel->howto->size; /* Correct in practice.  */
      if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
        {
          rinfo->r_extern = 0;
          rinfo->r_value =
	    (*rel->sym_ptr_ptr)->section->output_section->target_index;
        }
      else
        {
          rinfo->r_extern = 1;
          rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
        }
      break;
    case BFD_RELOC_MACH_O_SECTDIFF:
      rinfo->r_scattered = 1;
      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF;
      rinfo->r_pcrel = 0;
      rinfo->r_length = rel->howto->size;
      rinfo->r_extern = 0;
      rinfo->r_value = rel->addend;
      break;
    case BFD_RELOC_MACH_O_LOCAL_SECTDIFF:
      rinfo->r_scattered = 1;
      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF;
      rinfo->r_pcrel = 0;
      rinfo->r_length = rel->howto->size;
      rinfo->r_extern = 0;
      rinfo->r_value = rel->addend;
      break;
    case BFD_RELOC_MACH_O_PAIR:
      rinfo->r_address = 0;
      rinfo->r_scattered = 1;
      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR;
      rinfo->r_pcrel = 0;
      rinfo->r_length = rel->howto->size;
      rinfo->r_extern = 0;
      rinfo->r_value = rel->addend;
      break;
    default:
      return FALSE;
    }
  return TRUE;
}

static reloc_howto_type *
bfd_mach_o_i386_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
                                       bfd_reloc_code_real_type code)
{
  unsigned int i;

  for (i = 0; i < sizeof (i386_howto_table) / sizeof (*i386_howto_table); i++)
    if (code == i386_howto_table[i].type)
      return &i386_howto_table[i];
  return NULL;
}

static reloc_howto_type *
bfd_mach_o_i386_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
                                       const char *name ATTRIBUTE_UNUSED)
{
  return NULL;
}

static bfd_boolean
bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
                              void *vfile, char *buf)
{
  FILE *file = (FILE *)vfile;

  switch (thread->flavour)
    {
    case BFD_MACH_O_x86_THREAD_STATE:
      if (thread->size < (8 + 16 * 4))
        return FALSE;
      fprintf (file, "   x86_THREAD_STATE:\n");
      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 0),
               (unsigned long)bfd_get_32 (abfd, buf + 4));
      fprintf (file, "     eax: %08lx  ebx: %08lx  ecx: %08lx  edx: %08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 8),
               (unsigned long)bfd_get_32 (abfd, buf + 12),
               (unsigned long)bfd_get_32 (abfd, buf + 16),
               (unsigned long)bfd_get_32 (abfd, buf + 20));
      fprintf (file, "     edi: %08lx  esi: %08lx  ebp: %08lx  esp: %08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 24),
               (unsigned long)bfd_get_32 (abfd, buf + 28),
               (unsigned long)bfd_get_32 (abfd, buf + 32),
               (unsigned long)bfd_get_32 (abfd, buf + 36));
      fprintf (file, "      ss: %08lx  flg: %08lx  eip: %08lx   cs: %08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 40),
               (unsigned long)bfd_get_32 (abfd, buf + 44),
               (unsigned long)bfd_get_32 (abfd, buf + 48),
               (unsigned long)bfd_get_32 (abfd, buf + 52));
      fprintf (file, "      ds: %08lx   es: %08lx   fs: %08lx   gs: %08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 56),
               (unsigned long)bfd_get_32 (abfd, buf + 60),
               (unsigned long)bfd_get_32 (abfd, buf + 64),
               (unsigned long)bfd_get_32 (abfd, buf + 68));
      return TRUE;
    case BFD_MACH_O_x86_FLOAT_STATE:
      if (thread->size < 8)
        return FALSE;
      fprintf (file, "   x86_FLOAT_STATE:\n");
      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 0),
               (unsigned long)bfd_get_32 (abfd, buf + 4));
      return TRUE;
    case BFD_MACH_O_x86_EXCEPTION_STATE:
      if (thread->size < 8 + 3 * 4)
        return FALSE;
      fprintf (file, "   x86_EXCEPTION_STATE:\n");
      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 0),
               (unsigned long)bfd_get_32 (abfd, buf + 4));
      fprintf (file, "    trapno: %08lx  err: %08lx  faultaddr: %08lx\n",
               (unsigned long)bfd_get_32 (abfd, buf + 8),
               (unsigned long)bfd_get_32 (abfd, buf + 12),
               (unsigned long)bfd_get_32 (abfd, buf + 16));
      return TRUE;
    default:
      break;
    }
  return FALSE;
}

static const mach_o_section_name_xlat text_section_names_xlat[] =
  {
    {	".symbol_stub",			"__symbol_stub",
	SEC_CODE | SEC_LOAD,		BFD_MACH_O_S_SYMBOL_STUBS,
	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
					0},
    {	".picsymbol_stub",		"__picsymbol_stub",
	SEC_CODE | SEC_LOAD,		BFD_MACH_O_S_SYMBOL_STUBS,
	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
					0},
    { NULL, NULL, 0, 0, 0, 0}
  };

static const mach_o_section_name_xlat data_section_names_xlat[] =
  {
    /* The first two are recognized by i386, but not emitted for x86 by
       modern GCC.  */
    {	".non_lazy_symbol_pointer",	"__nl_symbol_ptr",
	SEC_DATA | SEC_LOAD,		BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
	BFD_MACH_O_S_ATTR_NONE,		2},
    {	".lazy_symbol_pointer",		"__la_symbol_ptr",
	SEC_DATA | SEC_LOAD,		BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	BFD_MACH_O_S_ATTR_NONE,		2},
    {	".lazy_symbol_pointer2",	"__la_sym_ptr2",
	SEC_DATA | SEC_LOAD,		BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	BFD_MACH_O_S_ATTR_NONE,		2},
    {	".lazy_symbol_pointer3",	"__la_sym_ptr3",
	SEC_DATA | SEC_LOAD,		BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	BFD_MACH_O_S_ATTR_NONE,		2},
    { NULL, NULL, 0, 0, 0, 0}
  };

static const mach_o_section_name_xlat import_section_names_xlat[] =
  {
    {	".picsymbol_stub3",		"__jump_table",
	SEC_CODE | SEC_LOAD,		BFD_MACH_O_S_SYMBOL_STUBS,
	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
	| BFD_MACH_O_S_SELF_MODIFYING_CODE,
					6},
    {	".non_lazy_symbol_pointer_x86",	"__pointers",
	SEC_DATA | SEC_LOAD,		BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
	BFD_MACH_O_S_ATTR_NONE,		2},
    { NULL, NULL, 0, 0, 0, 0}
  };

const mach_o_segment_name_xlat mach_o_i386_segsec_names_xlat[] =
  {
    { "__TEXT", text_section_names_xlat },
    { "__DATA", data_section_names_xlat },
    { "__IMPORT", import_section_names_xlat },
    { NULL, NULL }
  };

#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread

#define bfd_mach_o_tgt_seg_table mach_o_i386_segsec_names_xlat
#define bfd_mach_o_section_type_valid_for_tgt NULL

#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup

#define TARGET_NAME 		i386_mach_o_vec
#define TARGET_STRING 		"mach-o-i386"
#define TARGET_ARCHITECTURE	bfd_arch_i386
#define TARGET_PAGESIZE		4096
#define TARGET_BIG_ENDIAN 	0
#define TARGET_ARCHIVE 		0
#define TARGET_PRIORITY		0
#include "mach-o-target.c"
Commit	Line	Data
154a1ee5	1	/* Intel i386 Mach-O support for BFD.
b90efa5b	2	Copyright (C) 2009-2015 Free Software Foundation, Inc.
154a1ee5 TG	3
	4	This file is part of BFD, the Binary File Descriptor library.
	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
	8	the Free Software Foundation; either version 3 of the License, or
	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
	18	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	19	MA 02110-1301, USA. */
	20
	21	#include "sysdep.h"
	22	#include "mach-o.h"
	23	#include "bfd.h"
	24	#include "libbfd.h"
	25	#include "libiberty.h"
46d1c23b	26	#include "mach-o/reloc.h"
154a1ee5 TG	27
	28	#define bfd_mach_o_object_p bfd_mach_o_i386_object_p
	29	#define bfd_mach_o_core_p bfd_mach_o_i386_core_p
	30	#define bfd_mach_o_mkobject bfd_mach_o_i386_mkobject
	31
	32	static const bfd_target *
	33	bfd_mach_o_i386_object_p (bfd *abfd)
	34	{
	35	return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_I386);
	36	}
	37
	38	static const bfd_target *
	39	bfd_mach_o_i386_core_p (bfd *abfd)
	40	{
	41	return bfd_mach_o_header_p (abfd,
	42	BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_I386);
	43	}
	44
	45	static bfd_boolean
	46	bfd_mach_o_i386_mkobject (bfd *abfd)
	47	{
	48	bfd_mach_o_data_struct *mdata;
	49
	50	if (!bfd_mach_o_mkobject_init (abfd))
	51	return FALSE;
	52
046b007d	53	mdata = bfd_mach_o_get_data (abfd);
154a1ee5 TG	54	mdata->header.magic = BFD_MACH_O_MH_MAGIC;
	55	mdata->header.cputype = BFD_MACH_O_CPU_TYPE_I386;
	56	mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
154a1ee5 TG	57	mdata->header.byteorder = BFD_ENDIAN_LITTLE;
	58	mdata->header.version = 1;
	59
	60	return TRUE;
	61	}
	62
92bc0e80 TG	63	static reloc_howto_type i386_howto_table[]=
92bc0e80 TG	64	{
e1e81ed3	65	/* 0 */
92bc0e80 TG	66	HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
	67	complain_overflow_bitfield,
	68	NULL, "32",
	69	FALSE, 0xffffffff, 0xffffffff, FALSE),
	70	HOWTO(BFD_RELOC_16, 0, 1, 16, FALSE, 0,
	71	complain_overflow_bitfield,
	72	NULL, "16",
	73	FALSE, 0xffff, 0xffff, FALSE),
	74	HOWTO(BFD_RELOC_8, 0, 0, 8, FALSE, 0,
	75	complain_overflow_bitfield,
	76	NULL, "8",
	77	FALSE, 0xff, 0xff, FALSE),
	78	HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
	79	complain_overflow_bitfield,
	80	NULL, "DISP32",
	81	FALSE, 0xffffffff, 0xffffffff, TRUE),
e1e81ed3	82	/* 4 */
92bc0e80 TG	83	HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
	84	complain_overflow_bitfield,
	85	NULL, "DISP16",
	86	FALSE, 0xffff, 0xffff, TRUE),
	87	HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0,
	88	complain_overflow_bitfield,
	89	NULL, "SECTDIFF_32",
	90	FALSE, 0xffffffff, 0xffffffff, FALSE),
e1e81ed3 IS	91	HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 2, 32, FALSE, 0,
	92	complain_overflow_bitfield,
	93	NULL, "LSECTDIFF_32",
	94	FALSE, 0xffffffff, 0xffffffff, FALSE),
92bc0e80 TG	95	HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
	96	complain_overflow_bitfield,
	97	NULL, "PAIR_32",
	98	FALSE, 0xffffffff, 0xffffffff, FALSE),
6639d37a IS	99	/* 8 */
	100	HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 1, 16, FALSE, 0,
	101	complain_overflow_bitfield,
	102	NULL, "SECTDIFF_16",
	103	FALSE, 0xffff, 0xffff, FALSE),
	104	HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 1, 16, FALSE, 0,
	105	complain_overflow_bitfield,
	106	NULL, "LSECTDIFF_16",
	107	FALSE, 0xffff, 0xffff, FALSE),
	108	HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 1, 16, FALSE, 0,
	109	complain_overflow_bitfield,
	110	NULL, "PAIR_16",
	111	FALSE, 0xffff, 0xffff, FALSE),
92bc0e80 TG	112	};
	113
	114	static bfd_boolean
	115	bfd_mach_o_i386_swap_reloc_in (arelent res, bfd_mach_o_reloc_info reloc)
	116	{
	117	if (reloc->r_scattered)
	118	{
	119	switch (reloc->r_type)
	120	{
	121	case BFD_MACH_O_GENERIC_RELOC_PAIR:
6639d37a IS	122	if (reloc->r_length == 2)
	123	{
	124	res->howto = &i386_howto_table[7];
	125	res->address = res[-1].address;
	126	return TRUE;
	127	}
	128	else if (reloc->r_length == 1)
	129	{
	130	res->howto = &i386_howto_table[10];
	131	res->address = res[-1].address;
	132	return TRUE;
	133	}
	134	return FALSE;
92bc0e80	135	case BFD_MACH_O_GENERIC_RELOC_SECTDIFF:
6639d37a IS	136	if (reloc->r_length == 2)
	137	{
	138	res->howto = &i386_howto_table[5];
	139	return TRUE;
	140	}
	141	else if (reloc->r_length == 1)
	142	{
	143	res->howto = &i386_howto_table[8];
	144	return TRUE;
	145	}
	146	return FALSE;
e1e81ed3	147	case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF:
6639d37a IS	148	if (reloc->r_length == 2)
	149	{
	150	res->howto = &i386_howto_table[6];
	151	return TRUE;
	152	}
	153	else if (reloc->r_length == 1)
	154	{
	155	res->howto = &i386_howto_table[9];
	156	return TRUE;
	157	}
	158	return FALSE;
92bc0e80 TG	159	default:
	160	return FALSE;
	161	}
	162	}
	163	else
	164	{
	165	switch (reloc->r_type)
	166	{
	167	case BFD_MACH_O_GENERIC_RELOC_VANILLA:
	168	switch ((reloc->r_length << 1) \| reloc->r_pcrel)
	169	{
	170	case 0: /* len = 0, pcrel = 0 */
	171	res->howto = &i386_howto_table[2];
	172	return TRUE;
	173	case 2: /* len = 1, pcrel = 0 */
	174	res->howto = &i386_howto_table[1];
	175	return TRUE;
	176	case 3: /* len = 1, pcrel = 1 */
	177	res->howto = &i386_howto_table[4];
	178	return TRUE;
	179	case 4: /* len = 2, pcrel = 0 */
	180	res->howto = &i386_howto_table[0];
	181	return TRUE;
	182	case 5: /* len = 2, pcrel = 1 */
	183	res->howto = &i386_howto_table[3];
	184	return TRUE;
	185	default:
	186	return FALSE;
	187	}
	188	break;
	189	default:
	190	return FALSE;
	191	}
	192	}
	193	}
	194
	195	static bfd_boolean
	196	bfd_mach_o_i386_swap_reloc_out (arelent rel, bfd_mach_o_reloc_info rinfo)
	197	{
	198	rinfo->r_address = rel->address;
	199	switch (rel->howto->type)
	200	{
	201	case BFD_RELOC_32:
	202	case BFD_RELOC_32_PCREL:
	203	case BFD_RELOC_16:
	204	case BFD_RELOC_16_PCREL:
	205	case BFD_RELOC_8:
	206	rinfo->r_scattered = 0;
	207	rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_VANILLA;
	208	rinfo->r_pcrel = rel->howto->pc_relative;
	209	rinfo->r_length = rel->howto->size; /* Correct in practice. */
	210	if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
	211	{
	212	rinfo->r_extern = 0;
47c50932 TG	213	rinfo->r_value =
47c50932 TG	214	(*rel->sym_ptr_ptr)->section->output_section->target_index;
92bc0e80 TG	215	}
	216	else
	217	{
	218	rinfo->r_extern = 1;
	219	rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
	220	}
	221	break;
	222	case BFD_RELOC_MACH_O_SECTDIFF:
	223	rinfo->r_scattered = 1;
	224	rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF;
	225	rinfo->r_pcrel = 0;
6639d37a	226	rinfo->r_length = rel->howto->size;
92bc0e80	227	rinfo->r_extern = 0;
6639d37a	228	rinfo->r_value = rel->addend;
92bc0e80	229	break;
e1e81ed3 IS	230	case BFD_RELOC_MACH_O_LOCAL_SECTDIFF:
	231	rinfo->r_scattered = 1;
	232	rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF;
	233	rinfo->r_pcrel = 0;
6639d37a	234	rinfo->r_length = rel->howto->size;
e1e81ed3	235	rinfo->r_extern = 0;
6639d37a	236	rinfo->r_value = rel->addend;
e1e81ed3	237	break;
92bc0e80 TG	238	case BFD_RELOC_MACH_O_PAIR:
	239	rinfo->r_address = 0;
	240	rinfo->r_scattered = 1;
	241	rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR;
	242	rinfo->r_pcrel = 0;
6639d37a	243	rinfo->r_length = rel->howto->size;
92bc0e80	244	rinfo->r_extern = 0;
6639d37a	245	rinfo->r_value = rel->addend;
92bc0e80 TG	246	break;
	247	default:
	248	return FALSE;
	249	}
	250	return TRUE;
	251	}
	252
	253	static reloc_howto_type *
	254	bfd_mach_o_i386_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	255	bfd_reloc_code_real_type code)
	256	{
	257	unsigned int i;
	258
	259	for (i = 0; i < sizeof (i386_howto_table) / sizeof (*i386_howto_table); i++)
	260	if (code == i386_howto_table[i].type)
	261	return &i386_howto_table[i];
	262	return NULL;
	263	}
	264
	265	static reloc_howto_type *
	266	bfd_mach_o_i386_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
	267	const char *name ATTRIBUTE_UNUSED)
	268	{
	269	return NULL;
	270	}
	271
b32e07d7 TG	272	static bfd_boolean
	273	bfd_mach_o_i386_print_thread (bfd abfd, bfd_mach_o_thread_flavour thread,
	274	void vfile, char buf)
	275	{
	276	FILE file = (FILE )vfile;
	277
	278	switch (thread->flavour)
	279	{
	280	case BFD_MACH_O_x86_THREAD_STATE:
	281	if (thread->size < (8 + 16 * 4))
	282	return FALSE;
	283	fprintf (file, " x86_THREAD_STATE:\n");
	284	fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
	285	(unsigned long)bfd_get_32 (abfd, buf + 0),
	286	(unsigned long)bfd_get_32 (abfd, buf + 4));
	287	fprintf (file, " eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
	288	(unsigned long)bfd_get_32 (abfd, buf + 8),
	289	(unsigned long)bfd_get_32 (abfd, buf + 12),
	290	(unsigned long)bfd_get_32 (abfd, buf + 16),
	291	(unsigned long)bfd_get_32 (abfd, buf + 20));
	292	fprintf (file, " edi: %08lx esi: %08lx ebp: %08lx esp: %08lx\n",
	293	(unsigned long)bfd_get_32 (abfd, buf + 24),
	294	(unsigned long)bfd_get_32 (abfd, buf + 28),
	295	(unsigned long)bfd_get_32 (abfd, buf + 32),
	296	(unsigned long)bfd_get_32 (abfd, buf + 36));
	297	fprintf (file, " ss: %08lx flg: %08lx eip: %08lx cs: %08lx\n",
	298	(unsigned long)bfd_get_32 (abfd, buf + 40),
	299	(unsigned long)bfd_get_32 (abfd, buf + 44),
	300	(unsigned long)bfd_get_32 (abfd, buf + 48),
	301	(unsigned long)bfd_get_32 (abfd, buf + 52));
	302	fprintf (file, " ds: %08lx es: %08lx fs: %08lx gs: %08lx\n",
	303	(unsigned long)bfd_get_32 (abfd, buf + 56),
	304	(unsigned long)bfd_get_32 (abfd, buf + 60),
	305	(unsigned long)bfd_get_32 (abfd, buf + 64),
	306	(unsigned long)bfd_get_32 (abfd, buf + 68));
	307	return TRUE;
	308	case BFD_MACH_O_x86_FLOAT_STATE:
	309	if (thread->size < 8)
	310	return FALSE;
	311	fprintf (file, " x86_FLOAT_STATE:\n");
	312	fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
	313	(unsigned long)bfd_get_32 (abfd, buf + 0),
	314	(unsigned long)bfd_get_32 (abfd, buf + 4));
	315	return TRUE;
	316	case BFD_MACH_O_x86_EXCEPTION_STATE:
	317	if (thread->size < 8 + 3 * 4)
	318	return FALSE;
	319	fprintf (file, " x86_EXCEPTION_STATE:\n");
	320	fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
	321	(unsigned long)bfd_get_32 (abfd, buf + 0),
	322	(unsigned long)bfd_get_32 (abfd, buf + 4));
	323	fprintf (file, " trapno: %08lx err: %08lx faultaddr: %08lx\n",
	324	(unsigned long)bfd_get_32 (abfd, buf + 8),
	325	(unsigned long)bfd_get_32 (abfd, buf + 12),
	326	(unsigned long)bfd_get_32 (abfd, buf + 16));
	327	return TRUE;
	328	default:
	329	break;
	330	}
	331	return FALSE;
	332	}
	333
a4551119 TG	334	static const mach_o_section_name_xlat text_section_names_xlat[] =
	335	{
	336	{ ".symbol_stub", "__symbol_stub",
632039e0	337	SEC_CODE \| SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
a4551119 TG	338	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
	339	0},
	340	{ ".picsymbol_stub", "__picsymbol_stub",
632039e0	341	SEC_CODE \| SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
a4551119 TG	342	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
	343	0},
	344	{ NULL, NULL, 0, 0, 0, 0}
	345	};
	346
	347	static const mach_o_section_name_xlat data_section_names_xlat[] =
	348	{
	349	/* The first two are recognized by i386, but not emitted for x86 by
	350	modern GCC. */
	351	{ ".non_lazy_symbol_pointer", "__nl_symbol_ptr",
	352	SEC_DATA \| SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
	353	BFD_MACH_O_S_ATTR_NONE, 2},
	354	{ ".lazy_symbol_pointer", "__la_symbol_ptr",
	355	SEC_DATA \| SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	356	BFD_MACH_O_S_ATTR_NONE, 2},
	357	{ ".lazy_symbol_pointer2", "__la_sym_ptr2",
	358	SEC_DATA \| SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	359	BFD_MACH_O_S_ATTR_NONE, 2},
	360	{ ".lazy_symbol_pointer3", "__la_sym_ptr3",
	361	SEC_DATA \| SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
	362	BFD_MACH_O_S_ATTR_NONE, 2},
	363	{ NULL, NULL, 0, 0, 0, 0}
	364	};
	365
	366	static const mach_o_section_name_xlat import_section_names_xlat[] =
	367	{
	368	{ ".picsymbol_stub3", "__jump_table",
632039e0	369	SEC_CODE \| SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
68ffbac6	370	BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
a4551119 TG	371	\| BFD_MACH_O_S_SELF_MODIFYING_CODE,
	372	6},
	373	{ ".non_lazy_symbol_pointer_x86", "__pointers",
	374	SEC_DATA \| SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
	375	BFD_MACH_O_S_ATTR_NONE, 2},
	376	{ NULL, NULL, 0, 0, 0, 0}
	377	};
	378
	379	const mach_o_segment_name_xlat mach_o_i386_segsec_names_xlat[] =
	380	{
	381	{ "__TEXT", text_section_names_xlat },
	382	{ "__DATA", data_section_names_xlat },
	383	{ "__IMPORT", import_section_names_xlat },
	384	{ NULL, NULL }
	385	};
	386
92bc0e80 TG	387	#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
92bc0e80 TG	388	#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
b32e07d7	389	#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread
92bc0e80	390
a4551119	391	#define bfd_mach_o_tgt_seg_table mach_o_i386_segsec_names_xlat
ab76eeaf	392	#define bfd_mach_o_section_type_valid_for_tgt NULL
a4551119	393
68ffbac6	394	#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup
92bc0e80 TG	395	#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup
92bc0e80 TG	396
6d00b590	397	#define TARGET_NAME i386_mach_o_vec
154a1ee5	398	#define TARGET_STRING "mach-o-i386"
42fa0891	399	#define TARGET_ARCHITECTURE bfd_arch_i386
4384b284	400	#define TARGET_PAGESIZE 4096
154a1ee5 TG	401	#define TARGET_BIG_ENDIAN 0
154a1ee5 TG	402	#define TARGET_ARCHIVE 0
b93a1992	403	#define TARGET_PRIORITY 0
154a1ee5	404	#include "mach-o-target.c"