[deliverable/binutils-gdb.git] / bfd / coff-w65.c

/* BFD back-end for WDC 65816 COFF binaries.
   Copyright 1995, 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
   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/w65.h"
#include "coff/internal.h"
#include "libcoff.h"

static int  select_reloc              PARAMS ((reloc_howto_type *));
static void rtype2howto               PARAMS ((arelent *, struct internal_reloc *));
static void reloc_processing          PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *));
static int  w65_reloc16_estimate    PARAMS ((bfd *, asection *, arelent *, unsigned int, struct bfd_link_info *));
static void w65_reloc16_extra_cases PARAMS ((bfd *,struct bfd_link_info *, struct bfd_link_order *, arelent *, bfd_byte *, unsigned int *, unsigned int *));

#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
static reloc_howto_type howto_table[] =
  {
    HOWTO (R_W65_ABS8,    0,  0, 8,  false, 0, complain_overflow_bitfield, 0, "abs8", true, 0x000000ff, 0x000000ff, false),
    HOWTO (R_W65_ABS16,   1,  0, 16, false, 0, complain_overflow_bitfield, 0, "abs16", true, 0x0000ffff, 0x0000ffff, false),
    HOWTO (R_W65_ABS24,   0,  2, 32, false, 0, complain_overflow_bitfield, 0, "abs24", true, 0x00ffffff, 0x00ffffff, false),
    HOWTO (R_W65_ABS8S8,  0,  0, 8,  false, 0, complain_overflow_bitfield, 0, ">abs8", true, 0x000000ff, 0x000000ff, false),
    HOWTO (R_W65_ABS8S16, 0,  0, 8,  false, 0, complain_overflow_bitfield, 0, "^abs8", true, 0x000000ff, 0x000000ff, false),
    HOWTO (R_W65_ABS16S8, 1,  0, 16, false, 0, complain_overflow_bitfield, 0, ">abs16", true, 0x0000ffff, 0x0000ffff, false),
    HOWTO (R_W65_ABS16S16,1,  0, 16, false, 0, complain_overflow_bitfield, 0, "^abs16", true, 0x0000ffff, 0x0000ffff, false),
    HOWTO (R_W65_PCR8,    0,  0, 8,  false, 0, complain_overflow_bitfield, 0, "pcrel8", true, 0x000000ff, 0x000000ff, true),
    HOWTO (R_W65_PCR16,   1,  0, 16, false, 0, complain_overflow_bitfield, 0, "pcrel16", true, 0x0000ffff, 0x0000ffff, true),
    HOWTO (R_W65_DP,      0,  0, 8,  false, 0, complain_overflow_bitfield, 0, "dp", true, 0x000000ff, 0x000000ff, false),
  };

/* Turn a howto into a reloc number.  */

#define SELECT_RELOC(x,howto) \
  { x.r_type = select_reloc(howto); }

#define BADMAG(x) (W65BADMAG(x))
#define W65 1			/* Customize coffcode.h */
#define __A_MAGIC_SET__

/* Code to swap in the reloc */
#define SWAP_IN_RELOC_OFFSET	H_GET_32
#define SWAP_OUT_RELOC_OFFSET	H_PUT_32
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
  dst->r_stuff[0] = 'S'; \
  dst->r_stuff[1] = 'C';

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

/* 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;
{
  internal->howto = howto_table + dst->r_type - 1;
}

#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 (((int) reloc->r_symndx) > 0)
    relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
  else
    relent->sym_ptr_ptr = (asymbol **)&(bfd_abs_symbol);

  relent->addend = reloc->r_offset;

  relent->address -= section->vma;
  /*  relent->section = 0;*/
}

static int
w65_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
     bfd *abfd;
     asection *input_section;
     arelent *reloc;
     unsigned int shrink;
     struct bfd_link_info *link_info;
{
  bfd_vma value;
  bfd_vma dot;
  bfd_vma gap;

  /* The address of the thing to be relocated will have moved back by
   the size of the shrink  - but we don't change reloc->address here,
   since we need it to know where the relocation lives in the source
   uncooked section.  */

  /*  reloc->address -= shrink;   conceptual */

  bfd_vma address = reloc->address - shrink;

  switch (reloc->howto->type)
    {
    case R_MOV16B2:
    case R_JMP2:
      shrink+=2;
      break;

      /* Thing is a move one byte.  */
    case R_MOV16B1:
      value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);

      if (value >= 0xff00)
	{
	  /* Change the reloc type from 16bit, possible 8 to 8bit
	     possible 16.  */
	  reloc->howto = reloc->howto + 1;
	  /* The place to relc moves back by one.  */
	  /* This will be two bytes smaller in the long run.  */
	  shrink += 2;
	  bfd_perform_slip (abfd, 2, input_section, address);
	}

      break;
      /* This is the 24 bit branch which could become an 8 bitter,
	 the relocation points to the first byte of the insn, not the
	 actual data.  */

    case R_JMPL1:
      value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);

      dot = input_section->output_section->vma +
	input_section->output_offset + address;

      /* See if the address we're looking at within 127 bytes of where
	 we are, if so then we can use a small branch rather than the
	 jump we were going to.  */
      gap = value - dot;

      if (-120 < (long) gap && (long) gap < 120)
	{
	  /* Change the reloc type from 24bit, possible 8 to 8bit
	     possible 32.  */
	  reloc->howto = reloc->howto + 1;
	  /* This will be two bytes smaller in the long run.  */
	  shrink += 2;
	  bfd_perform_slip (abfd, 2, input_section, address);
	}
      break;

    case R_JMP1:
      value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);

      dot = input_section->output_section->vma +
	input_section->output_offset + address;

      /* See if the address we're looking at within 127 bytes of where
	 we are, if so then we can use a small branch rather than the
	 jump we were going to.  */
      gap = value - (dot - shrink);

      if (-120 < (long) gap && (long) gap < 120)
	{
	  /* Change the reloc type from 16bit, possible 8 to 8bit
	     possible 16.  */
	  reloc->howto = reloc->howto + 1;
	  /* The place to relc moves back by one.  */

	  /* This will be two bytes smaller in the long run.  */
	  shrink += 2;
	  bfd_perform_slip (abfd, 2, input_section, address);
	}
      break;
    }

  return shrink;
}

/* First phase of a relaxing link.  */

/* Reloc types
   large		small
   R_MOV16B1		R_MOV16B2	mov.b with 16bit or 8 bit address
   R_JMP1		R_JMP2		jmp or pcrel branch
   R_JMPL1		R_JMPL_B8	24jmp or pcrel branch
   R_MOV24B1		R_MOV24B2	24 or 8 bit reloc for mov.b  */

static void
w65_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
			   dst_ptr)
     bfd *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;
{
  unsigned int src_address = *src_ptr;
  unsigned int dst_address = *dst_ptr;
  asection *input_section = link_order->u.indirect.section;

  switch (reloc->howto->type)
    {
    case R_W65_ABS8:
    case R_W65_DP:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	bfd_put_8 (abfd, gap, data + dst_address);
	dst_address += 1;
	src_address += 1;
      }
      break;

    case R_W65_ABS8S8:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	gap >>= 8;
	bfd_put_8 (abfd, gap, data + dst_address);
	dst_address += 1;
	src_address += 1;
      }
      break;

    case R_W65_ABS8S16:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	gap >>= 16;
	bfd_put_8 (abfd, gap, data + dst_address);
	dst_address += 1;
	src_address += 1;
      }
      break;

    case R_W65_ABS16:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);

	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
	dst_address += 2;
	src_address += 2;
      }
      break;
    case R_W65_ABS16S8:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	gap >>= 8;
	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
	dst_address += 2;
	src_address += 2;
      }
      break;
    case R_W65_ABS16S16:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	gap >>= 16;
	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
	dst_address += 2;
	src_address += 2;
      }
      break;

    case R_W65_ABS24:
      {
	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
						       input_section);
	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
	bfd_put_8 (abfd, gap >> 16, data+dst_address + 2);
	dst_address += 3;
	src_address += 3;
      }
      break;

    case R_W65_PCR8:
      {
	int gap = bfd_coff_reloc16_get_value (reloc, link_info,
					      input_section);
	bfd_vma dot = link_order->offset
	  + dst_address
	    + link_order->u.indirect.section->output_section->vma;

	gap -= dot + 1;
	if (gap < -128 || gap > 127)
	  {
	    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 (abfd, gap, data + dst_address);
	dst_address += 1;
	src_address += 1;
      }
      break;

    case R_W65_PCR16:
      {
	bfd_vma gap = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = link_order->offset
	  + dst_address
	    + link_order->u.indirect.section->output_section->vma;

	/* This wraps within the page, so ignore the relativeness, look at the
	   high part.  */
	if ((gap & 0xf0000) != (dot & 0xf0000))
	  {
	    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 ();
	  }

	gap -= dot + 2;
	bfd_put_16 (abfd, gap, data + dst_address);
	dst_address += 2;
	src_address += 2;
      }
      break;
    default:
      printf (_("ignoring reloc %s\n"), reloc->howto->name);
      break;

    }
  *src_ptr = src_address;
  *dst_ptr = dst_address;
}

#define coff_reloc16_extra_cases w65_reloc16_extra_cases
#define coff_reloc16_estimate w65_reloc16_estimate

#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_LITTLE_COFF_TARGET_VEC (w65_vec, "coff-w65", BFD_IS_RELAXABLE, 0, '_', NULL)
Commit	Line	Data
252b5132	1	/* BFD back-end for WDC 65816 COFF binaries.
f4ffd778	2	Copyright 1995, 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
252b5132 RH	3	Written by Steve Chamberlain, <sac@cygnus.com>.
	4
	5	This file is part of BFD, the Binary File Descriptor library.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	20
	21	#include "bfd.h"
	22	#include "sysdep.h"
	23	#include "libbfd.h"
	24	#include "bfdlink.h"
	25	#include "coff/w65.h"
	26	#include "coff/internal.h"
	27	#include "libcoff.h"
	28
f4ffd778 NC	29	static int select_reloc PARAMS ((reloc_howto_type *));
	30	static void rtype2howto PARAMS ((arelent , struct internal_reloc ));
	31	static void reloc_processing PARAMS ((arelent , struct internal_reloc , asymbol *, bfd , asection *));
	32	static int w65_reloc16_estimate PARAMS ((bfd , asection , arelent , unsigned int, struct bfd_link_info ));
	33	static void w65_reloc16_extra_cases PARAMS ((bfd ,struct bfd_link_info , struct bfd_link_order , arelent , bfd_byte , unsigned int , unsigned int *));
	34
252b5132 RH	35	#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
252b5132 RH	36	static reloc_howto_type howto_table[] =
f4ffd778 NC	37	{
	38	HOWTO (R_W65_ABS8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "abs8", true, 0x000000ff, 0x000000ff, false),
	39	HOWTO (R_W65_ABS16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "abs16", true, 0x0000ffff, 0x0000ffff, false),
	40	HOWTO (R_W65_ABS24, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "abs24", true, 0x00ffffff, 0x00ffffff, false),
	41	HOWTO (R_W65_ABS8S8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, ">abs8", true, 0x000000ff, 0x000000ff, false),
	42	HOWTO (R_W65_ABS8S16, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "^abs8", true, 0x000000ff, 0x000000ff, false),
	43	HOWTO (R_W65_ABS16S8, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, ">abs16", true, 0x0000ffff, 0x0000ffff, false),
	44	HOWTO (R_W65_ABS16S16,1, 0, 16, false, 0, complain_overflow_bitfield, 0, "^abs16", true, 0x0000ffff, 0x0000ffff, false),
	45	HOWTO (R_W65_PCR8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "pcrel8", true, 0x000000ff, 0x000000ff, true),
	46	HOWTO (R_W65_PCR16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "pcrel16", true, 0x0000ffff, 0x0000ffff, true),
	47	HOWTO (R_W65_DP, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "dp", true, 0x000000ff, 0x000000ff, false),
	48	};
	49
	50	/* Turn a howto into a reloc number. */
252b5132 RH	51
	52	#define SELECT_RELOC(x,howto) \
	53	{ x.r_type = select_reloc(howto); }
	54
	55	#define BADMAG(x) (W65BADMAG(x))
	56	#define W65 1 /* Customize coffcode.h */
	57	#define __A_MAGIC_SET__
	58
252b5132	59	/* Code to swap in the reloc */
dc810e39 AM	60	#define SWAP_IN_RELOC_OFFSET H_GET_32
dc810e39 AM	61	#define SWAP_OUT_RELOC_OFFSET H_PUT_32
252b5132 RH	62	#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
	63	dst->r_stuff[0] = 'S'; \
	64	dst->r_stuff[1] = 'C';
	65
252b5132 RH	66	static int
	67	select_reloc (howto)
	68	reloc_howto_type *howto;
	69	{
	70	return howto->type ;
	71	}
	72
f4ffd778	73	/* Code to turn a r_type into a howto ptr, uses the above howto table. */
252b5132 RH	74
	75	static void
	76	rtype2howto (internal, dst)
	77	arelent *internal;
	78	struct internal_reloc *dst;
	79	{
f4ffd778	80	internal->howto = howto_table + dst->r_type - 1;
252b5132 RH	81	}
	82
	83	#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
	84
f4ffd778	85	/* Perform any necessary magic to the addend in a reloc entry. */
252b5132	86
252b5132 RH	87	#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
	88	cache_ptr->addend = ext_reloc.r_offset;
	89
252b5132 RH	90	#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
	91	reloc_processing(relent, reloc, symbols, abfd, section)
	92
	93	static void
	94	reloc_processing (relent, reloc, symbols, abfd, section)
	95	arelent * relent;
	96	struct internal_reloc *reloc;
	97	asymbol ** symbols;
	98	bfd * abfd;
	99	asection * section;
	100	{
	101	relent->address = reloc->r_vaddr;
	102	rtype2howto (relent, reloc);
	103
	104	if (((int) reloc->r_symndx) > 0)
f4ffd778	105	relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
252b5132	106	else
f4ffd778	107	relent->sym_ptr_ptr = (asymbol **)&(bfd_abs_symbol);
252b5132	108
252b5132 RH	109	relent->addend = reloc->r_offset;
	110
	111	relent->address -= section->vma;
	112	/* relent->section = 0;*/
	113	}
	114
252b5132	115	static int
f4ffd778	116	w65_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
252b5132 RH	117	bfd *abfd;
	118	asection *input_section;
	119	arelent *reloc;
	120	unsigned int shrink;
	121	struct bfd_link_info *link_info;
	122	{
cbfe05c4	123	bfd_vma value;
252b5132 RH	124	bfd_vma dot;
	125	bfd_vma gap;
	126
cbfe05c4	127	/* The address of the thing to be relocated will have moved back by
252b5132 RH	128	the size of the shrink - but we don't change reloc->address here,
252b5132 RH	129	since we need it to know where the relocation lives in the source
f4ffd778	130	uncooked section. */
252b5132 RH	131
	132	/* reloc->address -= shrink; conceptual */
	133
	134	bfd_vma address = reloc->address - shrink;
252b5132 RH	135
252b5132 RH	136	switch (reloc->howto->type)
cbfe05c4	137	{
252b5132 RH	138	case R_MOV16B2:
	139	case R_JMP2:
	140	shrink+=2;
	141	break;
	142
f4ffd778	143	/* Thing is a move one byte. */
252b5132	144	case R_MOV16B1:
f4ffd778	145	value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
252b5132 RH	146
252b5132 RH	147	if (value >= 0xff00)
cbfe05c4	148	{
252b5132	149	/* Change the reloc type from 16bit, possible 8 to 8bit
f4ffd778	150	possible 16. */
cbfe05c4	151	reloc->howto = reloc->howto + 1;
f4ffd778 NC	152	/* The place to relc moves back by one. */
	153	/* This will be two bytes smaller in the long run. */
	154	shrink += 2;
	155	bfd_perform_slip (abfd, 2, input_section, address);
cbfe05c4	156	}
252b5132 RH	157
252b5132 RH	158	break;
cbfe05c4	159	/* This is the 24 bit branch which could become an 8 bitter,
f4ffd778 NC	160	the relocation points to the first byte of the insn, not the
f4ffd778 NC	161	actual data. */
252b5132 RH	162
252b5132 RH	163	case R_JMPL1:
f4ffd778	164	value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
cbfe05c4	165
252b5132 RH	166	dot = input_section->output_section->vma +
252b5132 RH	167	input_section->output_offset + address;
cbfe05c4	168
252b5132 RH	169	/* See if the address we're looking at within 127 bytes of where
252b5132 RH	170	we are, if so then we can use a small branch rather than the
f4ffd778 NC	171	jump we were going to. */
f4ffd778 NC	172	gap = value - dot;
cbfe05c4	173
f4ffd778	174	if (-120 < (long) gap && (long) gap < 120)
cbfe05c4	175	{
252b5132	176	/* Change the reloc type from 24bit, possible 8 to 8bit
f4ffd778	177	possible 32. */
cbfe05c4	178	reloc->howto = reloc->howto + 1;
f4ffd778 NC	179	/* This will be two bytes smaller in the long run. */
	180	shrink += 2;
	181	bfd_perform_slip (abfd, 2, input_section, address);
252b5132 RH	182	}
	183	break;
	184
	185	case R_JMP1:
f4ffd778	186	value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
cbfe05c4	187
252b5132 RH	188	dot = input_section->output_section->vma +
252b5132 RH	189	input_section->output_offset + address;
cbfe05c4	190
252b5132 RH	191	/* See if the address we're looking at within 127 bytes of where
252b5132 RH	192	we are, if so then we can use a small branch rather than the
f4ffd778	193	jump we were going to. */
252b5132	194	gap = value - (dot - shrink);
252b5132	195
f4ffd778	196	if (-120 < (long) gap && (long) gap < 120)
cbfe05c4	197	{
252b5132	198	/* Change the reloc type from 16bit, possible 8 to 8bit
f4ffd778	199	possible 16. */
cbfe05c4	200	reloc->howto = reloc->howto + 1;
f4ffd778	201	/* The place to relc moves back by one. */
252b5132	202
f4ffd778 NC	203	/* This will be two bytes smaller in the long run. */
	204	shrink += 2;
	205	bfd_perform_slip (abfd, 2, input_section, address);
252b5132 RH	206	}
	207	break;
	208	}
	209
252b5132 RH	210	return shrink;
	211	}
	212
f4ffd778	213	/* First phase of a relaxing link. */
252b5132 RH	214
	215	/* Reloc types
	216	large small
	217	R_MOV16B1 R_MOV16B2 mov.b with 16bit or 8 bit address
	218	R_JMP1 R_JMP2 jmp or pcrel branch
	219	R_JMPL1 R_JMPL_B8 24jmp or pcrel branch
f4ffd778	220	R_MOV24B1 R_MOV24B2 24 or 8 bit reloc for mov.b */
252b5132 RH	221
252b5132 RH	222	static void
f4ffd778	223	w65_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
252b5132 RH	224	dst_ptr)
	225	bfd *abfd;
	226	struct bfd_link_info *link_info;
	227	struct bfd_link_order *link_order;
	228	arelent *reloc;
	229	bfd_byte *data;
	230	unsigned int *src_ptr;
	231	unsigned int *dst_ptr;
	232	{
	233	unsigned int src_address = *src_ptr;
	234	unsigned int dst_address = *dst_ptr;
	235	asection *input_section = link_order->u.indirect.section;
	236
	237	switch (reloc->howto->type)
	238	{
	239	case R_W65_ABS8:
	240	case R_W65_DP:
	241	{
	242	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	243	input_section);
	244	bfd_put_8 (abfd, gap, data + dst_address);
	245	dst_address += 1;
	246	src_address += 1;
	247	}
	248	break;
	249
	250	case R_W65_ABS8S8:
	251	{
	252	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	253	input_section);
	254	gap >>= 8;
	255	bfd_put_8 (abfd, gap, data + dst_address);
	256	dst_address += 1;
	257	src_address += 1;
	258	}
	259	break;
	260
	261	case R_W65_ABS8S16:
	262	{
	263	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	264	input_section);
f4ffd778	265	gap >>= 16;
252b5132 RH	266	bfd_put_8 (abfd, gap, data + dst_address);
	267	dst_address += 1;
	268	src_address += 1;
	269	}
	270	break;
	271
	272	case R_W65_ABS16:
	273	{
	274	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	275	input_section);
	276
dc810e39	277	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
252b5132 RH	278	dst_address += 2;
	279	src_address += 2;
	280	}
	281	break;
	282	case R_W65_ABS16S8:
	283	{
	284	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	285	input_section);
	286	gap >>= 8;
dc810e39	287	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
252b5132 RH	288	dst_address += 2;
	289	src_address += 2;
	290	}
	291	break;
	292	case R_W65_ABS16S16:
	293	{
	294	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	295	input_section);
	296	gap >>= 16;
dc810e39	297	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
252b5132 RH	298	dst_address += 2;
	299	src_address += 2;
	300	}
	301	break;
	302
	303	case R_W65_ABS24:
	304	{
	305	unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	306	input_section);
dc810e39	307	bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
f4ffd778	308	bfd_put_8 (abfd, gap >> 16, data+dst_address + 2);
252b5132 RH	309	dst_address += 3;
	310	src_address += 3;
	311	}
	312	break;
	313
	314	case R_W65_PCR8:
	315	{
	316	int gap = bfd_coff_reloc16_get_value (reloc, link_info,
	317	input_section);
cbfe05c4 KH	318	bfd_vma dot = link_order->offset
cbfe05c4 KH	319	+ dst_address
252b5132 RH	320	+ link_order->u.indirect.section->output_section->vma;
	321
	322	gap -= dot + 1;
f4ffd778 NC	323	if (gap < -128 \|\| gap > 127)
	324	{
	325	if (! ((*link_info->callbacks->reloc_overflow)
	326	(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	327	reloc->howto->name, reloc->addend, input_section->owner,
	328	input_section, reloc->address)))
	329	abort ();
	330	}
252b5132 RH	331	bfd_put_8 (abfd, gap, data + dst_address);
	332	dst_address += 1;
	333	src_address += 1;
	334	}
	335	break;
	336
	337	case R_W65_PCR16:
	338	{
	339	bfd_vma gap = bfd_coff_reloc16_get_value (reloc, link_info,
	340	input_section);
cbfe05c4 KH	341	bfd_vma dot = link_order->offset
cbfe05c4 KH	342	+ dst_address
252b5132 RH	343	+ link_order->u.indirect.section->output_section->vma;
252b5132 RH	344
252b5132	345	/* This wraps within the page, so ignore the relativeness, look at the
f4ffd778 NC	346	high part. */
	347	if ((gap & 0xf0000) != (dot & 0xf0000))
	348	{
	349	if (! ((*link_info->callbacks->reloc_overflow)
	350	(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	351	reloc->howto->name, reloc->addend, input_section->owner,
	352	input_section, reloc->address)))
	353	abort ();
	354	}
252b5132 RH	355
	356	gap -= dot + 2;
	357	bfd_put_16 (abfd, gap, data + dst_address);
	358	dst_address += 2;
	359	src_address += 2;
	360	}
	361	break;
	362	default:
6e301b2b	363	printf (_("ignoring reloc %s\n"), reloc->howto->name);
252b5132 RH	364	break;
	365
	366	}
	367	*src_ptr = src_address;
	368	*dst_ptr = dst_address;
252b5132 RH	369	}
252b5132 RH	370
f4ffd778 NC	371	#define coff_reloc16_extra_cases w65_reloc16_extra_cases
f4ffd778 NC	372	#define coff_reloc16_estimate w65_reloc16_estimate
252b5132 RH	373
	374	#include "coffcode.h"
	375
252b5132 RH	376	#undef coff_bfd_get_relocated_section_contents
	377	#undef coff_bfd_relax_section
	378	#define coff_bfd_get_relocated_section_contents \
	379	bfd_coff_reloc16_get_relocated_section_contents
	380	#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
	381
371e71b8	382	CREATE_LITTLE_COFF_TARGET_VEC (w65_vec, "coff-w65", BFD_IS_RELAXABLE, 0, '_', NULL)