[deliverable/binutils-gdb.git] / bfd / coff-h8500.c

/* BFD back-end for Hitachi H8/500 COFF binaries.
   Copyright 1993, 1994, 1995, 1997, 1999, 2000
   Free Software Foundation, Inc.
   Contributed by Cygnus Support.
   Written by Steve Chamberlain, <sac@cygnus.com>.

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 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "bfdlink.h"
#include "coff/h8500.h"
#include "coff/internal.h"
#include "libcoff.h"

#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)

static reloc_howto_type r_imm8 =
HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0,
       complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false);

static reloc_howto_type r_imm16 =
HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0,
       complain_overflow_bitfield, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false);

static reloc_howto_type r_imm24 =
HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0,
       complain_overflow_bitfield, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false);

static reloc_howto_type r_imm32 =
HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0,
       complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false);

static reloc_howto_type r_high8 =
HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0,
       complain_overflow_dont, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);

static reloc_howto_type r_low16 =
HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0,
       complain_overflow_dont, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);

static reloc_howto_type r_pcrel8 =
HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, complain_overflow_signed, 0, "r_pcrel8", true, 0, 0, true);

static reloc_howto_type r_pcrel16 =
HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true);

static reloc_howto_type r_high16 =
HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0,
       complain_overflow_dont, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);

/* Turn a howto into a reloc number */

static int
coff_h8500_select_reloc (howto)
     reloc_howto_type *howto;
{
  return howto->type;
}

#define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)

#define BADMAG(x) H8500BADMAG(x)
#define H8500 1			/* Customize coffcode.h */

#define __A_MAGIC_SET__

/* Code to swap in the reloc */
#define SWAP_IN_RELOC_OFFSET   bfd_h_get_32
#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
  dst->r_stuff[0] = 'S'; \
  dst->r_stuff[1] = 'C';

/* Code to turn a r_type into a howto ptr, uses the above howto table
   */

static void
rtype2howto(internal, dst)
     arelent * internal;
     struct internal_reloc *dst;
{
  switch (dst->r_type)
    {
    default:
      abort ();
      break;
    case R_H8500_IMM8:
      internal->howto = &r_imm8;
      break;
    case R_H8500_IMM16:
      internal->howto = &r_imm16;
      break;
    case R_H8500_IMM24:
      internal->howto = &r_imm24;
      break;
    case R_H8500_IMM32:
      internal->howto = &r_imm32;
      break;
    case R_H8500_PCREL8:
      internal->howto = &r_pcrel8;
      break;
    case R_H8500_PCREL16:
      internal->howto = &r_pcrel16;
      break;
    case R_H8500_HIGH8:
      internal->howto = &r_high8;
      break;
    case R_H8500_HIGH16:
      internal->howto = &r_high16;
      break;
    case R_H8500_LOW16:
      internal->howto = &r_low16;
      break;
    }
}

#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)

/* Perform any necessary magic to the addend in a reloc entry */

#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
 cache_ptr->addend =  ext_reloc.r_offset;

#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
 reloc_processing(relent, reloc, symbols, abfd, section)

static void reloc_processing (relent, reloc, symbols, abfd, section)
     arelent * relent;
     struct internal_reloc *reloc;
     asymbol ** symbols;
     bfd * abfd;
     asection * section;
{
  relent->address = reloc->r_vaddr;
  rtype2howto (relent, reloc);

  if (reloc->r_symndx > 0)
    {
      relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
    }
  else
    {
      relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
    }

  relent->addend = reloc->r_offset;
  relent->address -= section->vma;
}

static void
extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
     bfd *in_abfd;
     struct bfd_link_info *link_info;
     struct bfd_link_order *link_order;
     arelent *reloc;
     bfd_byte *data;
     unsigned int *src_ptr;
     unsigned int *dst_ptr;
{
  bfd_byte *d = data+*dst_ptr;
  asection *input_section = link_order->u.indirect.section;
  switch (reloc->howto->type)
    {
    case R_H8500_IMM8:
      bfd_put_8 (in_abfd,
		 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
		 d);
      (*dst_ptr) += 1;
      (*src_ptr) += 1;
      break;

    case R_H8500_HIGH8:
      bfd_put_8 (in_abfd,
		 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
		  >> 16),
		 d );
      (*dst_ptr) += 1;
      (*src_ptr) += 1;
      break;

    case R_H8500_IMM16:
      bfd_put_16 (in_abfd,
		  bfd_coff_reloc16_get_value (reloc, link_info, input_section),
		  d  );
      (*dst_ptr) += 2;
      (*src_ptr) += 2;
      break;

    case R_H8500_LOW16:
      bfd_put_16 (in_abfd,
		  bfd_coff_reloc16_get_value (reloc, link_info, input_section),
		  d);

      (*dst_ptr) += 2;
      (*src_ptr) += 2;
      break;

    case R_H8500_HIGH16:
      bfd_put_16 (in_abfd,
		  (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
		   >>16),
		  d);

      (*dst_ptr) += 2;
      (*src_ptr) += 2;
      break;

    case R_H8500_IMM24:
      {
	int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
	int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
	v = (v & 0x00ffffff) | (o & 0xff00000);
	bfd_put_32 (in_abfd, v, data  + *dst_ptr -1);
	(*dst_ptr) +=3;
	(*src_ptr)+=3;;
      }
      break;
    case R_H8500_IMM32:
      {
	int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
	bfd_put_32 (in_abfd, v, data  + *dst_ptr);
	(*dst_ptr) +=4;
	(*src_ptr)+=4;;
      }
      break;

    case R_H8500_PCREL8:
      {
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = link_order->offset
	  + *dst_ptr
	    + link_order->u.indirect.section->output_section->vma;
	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
				    word and the pc's been incremented */

	if (gap > 128 || gap < -128)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
		    reloc->howto->name, reloc->addend, input_section->owner,
		    input_section, reloc->address)))
	      abort ();
	  }
	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
	(*dst_ptr)++;
	(*src_ptr)++;
	break;
      }
    case R_H8500_PCREL16:
      {
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = link_order->offset
	  + *dst_ptr
	    + link_order->u.indirect.section->output_section->vma;
	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
				    word and the pc's been incremented */

	if (gap > 32767 || gap < -32768)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
		    reloc->howto->name, reloc->addend, input_section->owner,
		    input_section, reloc->address)))
	      abort ();
	  }
	bfd_put_16 (in_abfd, gap, data + *dst_ptr);
	(*dst_ptr)+=2;
	(*src_ptr)+=2;
	break;
      }

    default:
      abort ();
    }
}

#define coff_reloc16_extra_cases extra_case

#include "coffcode.h"

#undef  coff_bfd_get_relocated_section_contents
#undef coff_bfd_relax_section
#define coff_bfd_get_relocated_section_contents \
  bfd_coff_reloc16_get_relocated_section_contents
#define coff_bfd_relax_section bfd_coff_reloc16_relax_section

CREATE_BIG_COFF_TARGET_VEC (h8500coff_vec, "coff-h8500", 0, 0, '_', NULL)
Commit	Line	Data
252b5132	1	/* BFD back-end for Hitachi H8/500 COFF binaries.
7898deda NC	2	Copyright 1993, 1994, 1995, 1997, 1999, 2000
7898deda NC	3	Free Software Foundation, Inc.
252b5132 RH	4	Contributed by Cygnus Support.
	5	Written by Steve Chamberlain, <sac@cygnus.com>.
	6
	7	This file is part of BFD, the Binary File Descriptor library.
	8
	9	This program is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2 of the License, or
	12	(at your option) any later version.
	13
	14	This program is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with this program; if not, write to the Free Software
	21	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	22
	23	#include "bfd.h"
	24	#include "sysdep.h"
	25	#include "libbfd.h"
	26	#include "bfdlink.h"
	27	#include "coff/h8500.h"
	28	#include "coff/internal.h"
	29	#include "libcoff.h"
	30
	31	#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
	32
	33	static reloc_howto_type r_imm8 =
	34	HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0,
	35	complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false);
	36
	37	static reloc_howto_type r_imm16 =
	38	HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0,
	39	complain_overflow_bitfield, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false);
	40
	41	static reloc_howto_type r_imm24 =
	42	HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0,
	43	complain_overflow_bitfield, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false);
	44
	45	static reloc_howto_type r_imm32 =
	46	HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0,
	47	complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false);
	48
252b5132 RH	49	static reloc_howto_type r_high8 =
	50	HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0,
	51	complain_overflow_dont, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);
	52
	53	static reloc_howto_type r_low16 =
	54	HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0,
	55	complain_overflow_dont, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);
	56
	57	static reloc_howto_type r_pcrel8 =
	58	HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, complain_overflow_signed, 0, "r_pcrel8", true, 0, 0, true);
	59
252b5132 RH	60	static reloc_howto_type r_pcrel16 =
	61	HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true);
	62
	63	static reloc_howto_type r_high16 =
	64	HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0,
	65	complain_overflow_dont, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
	66
252b5132 RH	67	/* Turn a howto into a reloc number */
252b5132 RH	68
5fcfd273	69	static int
252b5132 RH	70	coff_h8500_select_reloc (howto)
	71	reloc_howto_type *howto;
	72	{
	73	return howto->type;
	74	}
	75
	76	#define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
	77
252b5132 RH	78	#define BADMAG(x) H8500BADMAG(x)
	79	#define H8500 1 /* Customize coffcode.h */
	80
	81	#define __A_MAGIC_SET__
	82
	83	/* Code to swap in the reloc */
	84	#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
	85	#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
	86	#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
	87	dst->r_stuff[0] = 'S'; \
	88	dst->r_stuff[1] = 'C';
	89
	90	/* Code to turn a r_type into a howto ptr, uses the above howto table
	91	*/
	92
	93	static void
	94	rtype2howto(internal, dst)
	95	arelent * internal;
	96	struct internal_reloc *dst;
	97	{
	98	switch (dst->r_type)
	99	{
	100	default:
	101	abort ();
	102	break;
	103	case R_H8500_IMM8:
	104	internal->howto = &r_imm8;
	105	break;
	106	case R_H8500_IMM16:
	107	internal->howto = &r_imm16;
	108	break;
	109	case R_H8500_IMM24:
	110	internal->howto = &r_imm24;
	111	break;
	112	case R_H8500_IMM32:
	113	internal->howto = &r_imm32;
	114	break;
	115	case R_H8500_PCREL8:
	116	internal->howto = &r_pcrel8;
	117	break;
	118	case R_H8500_PCREL16:
	119	internal->howto = &r_pcrel16;
	120	break;
	121	case R_H8500_HIGH8:
	122	internal->howto = &r_high8;
	123	break;
	124	case R_H8500_HIGH16:
	125	internal->howto = &r_high16;
	126	break;
	127	case R_H8500_LOW16:
	128	internal->howto = &r_low16;
	129	break;
	130	}
	131	}
	132
	133	#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
	134
252b5132 RH	135	/* Perform any necessary magic to the addend in a reloc entry */
252b5132 RH	136
252b5132 RH	137	#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
	138	cache_ptr->addend = ext_reloc.r_offset;
	139
252b5132 RH	140	#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
	141	reloc_processing(relent, reloc, symbols, abfd, section)
	142
	143	static void reloc_processing (relent, reloc, symbols, abfd, section)
	144	arelent * relent;
	145	struct internal_reloc *reloc;
	146	asymbol ** symbols;
	147	bfd * abfd;
	148	asection * section;
	149	{
	150	relent->address = reloc->r_vaddr;
	151	rtype2howto (relent, reloc);
	152
	153	if (reloc->r_symndx > 0)
	154	{
	155	relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
	156	}
	157	else
	158	{
	159	relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
	160	}
	161
252b5132 RH	162	relent->addend = reloc->r_offset;
	163	relent->address -= section->vma;
	164	}
	165
	166	static void
	167	extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
	168	bfd *in_abfd;
	169	struct bfd_link_info *link_info;
	170	struct bfd_link_order *link_order;
	171	arelent *reloc;
	172	bfd_byte *data;
	173	unsigned int *src_ptr;
	174	unsigned int *dst_ptr;
	175	{
	176	bfd_byte d = data+dst_ptr;
	177	asection *input_section = link_order->u.indirect.section;
	178	switch (reloc->howto->type)
	179	{
	180	case R_H8500_IMM8:
	181	bfd_put_8 (in_abfd,
	182	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	183	d);
	184	(*dst_ptr) += 1;
	185	(*src_ptr) += 1;
	186	break;
	187
	188	case R_H8500_HIGH8:
	189	bfd_put_8 (in_abfd,
	190	(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
	191	>> 16),
	192	d );
	193	(*dst_ptr) += 1;
	194	(*src_ptr) += 1;
	195	break;
	196
	197	case R_H8500_IMM16:
	198	bfd_put_16 (in_abfd,
	199	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	200	d );
	201	(*dst_ptr) += 2;
	202	(*src_ptr) += 2;
	203	break;
	204
	205	case R_H8500_LOW16:
	206	bfd_put_16 (in_abfd,
	207	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	208	d);
	209
	210	(*dst_ptr) += 2;
	211	(*src_ptr) += 2;
	212	break;
5fcfd273	213
252b5132 RH	214	case R_H8500_HIGH16:
	215	bfd_put_16 (in_abfd,
	216	(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
	217	>>16),
	218	d);
	219
	220	(*dst_ptr) += 2;
	221	(*src_ptr) += 2;
	222	break;
	223
	224	case R_H8500_IMM24:
	225	{
	226	int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
6e301b2b	227	int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
252b5132 RH	228	v = (v & 0x00ffffff) \| (o & 0xff00000);
	229	bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
	230	(*dst_ptr) +=3;
	231	(*src_ptr)+=3;;
	232	}
	233	break;
	234	case R_H8500_IMM32:
	235	{
	236	int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
	237	bfd_put_32 (in_abfd, v, data + *dst_ptr);
	238	(*dst_ptr) +=4;
	239	(*src_ptr)+=4;;
	240	}
	241	break;
	242
252b5132 RH	243	case R_H8500_PCREL8:
	244	{
	245	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	246	input_section);
	247	bfd_vma dot = link_order->offset
	248	+ *dst_ptr
	249	+ link_order->u.indirect.section->output_section->vma;
	250	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
	251	word and the pc's been incremented */
	252
	253	if (gap > 128 \|\| gap < -128)
	254	{
	255	if (! ((*link_info->callbacks->reloc_overflow)
	256	(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	257	reloc->howto->name, reloc->addend, input_section->owner,
	258	input_section, reloc->address)))
	259	abort ();
	260	}
	261	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
	262	(*dst_ptr)++;
	263	(*src_ptr)++;
	264	break;
	265	}
	266	case R_H8500_PCREL16:
	267	{
	268	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	269	input_section);
	270	bfd_vma dot = link_order->offset
	271	+ *dst_ptr
	272	+ link_order->u.indirect.section->output_section->vma;
	273	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
	274	word and the pc's been incremented */
	275
	276	if (gap > 32767 \|\| gap < -32768)
	277	{
	278	if (! ((*link_info->callbacks->reloc_overflow)
	279	(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	280	reloc->howto->name, reloc->addend, input_section->owner,
	281	input_section, reloc->address)))
	282	abort ();
	283	}
	284	bfd_put_16 (in_abfd, gap, data + *dst_ptr);
	285	(*dst_ptr)+=2;
	286	(*src_ptr)+=2;
	287	break;
	288	}
	289
	290	default:
	291	abort ();
	292	}
	293	}
	294
	295	#define coff_reloc16_extra_cases extra_case
	296
	297	#include "coffcode.h"
	298
252b5132 RH	299	#undef coff_bfd_get_relocated_section_contents
	300	#undef coff_bfd_relax_section
	301	#define coff_bfd_get_relocated_section_contents \
	302	bfd_coff_reloc16_get_relocated_section_contents
	303	#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
	304
c3c89269	305	CREATE_BIG_COFF_TARGET_VEC (h8500coff_vec, "coff-h8500", 0, 0, '_', NULL)