[deliverable/binutils-gdb.git] / bfd / coff-z8k.c

/* BFD back-end for Zilog Z800n COFF binaries.
   Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002, 2003
   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/z8k.h"
#include "coff/internal.h"
#include "libcoff.h"

#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)

static reloc_howto_type r_imm32 =
HOWTO (R_IMM32, 0, 2, 32, FALSE, 0,
       complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff,
       0xffffffff, FALSE);

static reloc_howto_type r_imm4l =
HOWTO (R_IMM4L, 0, 0, 4, FALSE, 0,
       complain_overflow_bitfield, 0, "r_imm4l", TRUE, 0xf, 0xf, FALSE);

static reloc_howto_type r_da =
HOWTO (R_IMM16, 0, 1, 16, FALSE, 0,
       complain_overflow_bitfield, 0, "r_da", TRUE, 0x0000ffff, 0x0000ffff,
       FALSE);

static reloc_howto_type r_imm8 =
HOWTO (R_IMM8, 0, 0, 8, FALSE, 0,
       complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff,
       FALSE);

static reloc_howto_type r_rel16 =
HOWTO (R_REL16, 0, 1, 16, FALSE, 0,
       complain_overflow_bitfield, 0, "r_rel16", TRUE, 0x0000ffff, 0x0000ffff,
       TRUE);

static reloc_howto_type r_jr =
HOWTO (R_JR, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,
       "r_jr", TRUE, 0, 0, TRUE);

static reloc_howto_type r_disp7 =
HOWTO (R_DISP7, 0, 0, 7, TRUE, 0, complain_overflow_bitfield, 0,
       "r_disp7", TRUE, 0, 0, TRUE);

static reloc_howto_type r_callr =
HOWTO (R_CALLR, 0, 1, 12, TRUE, 0, complain_overflow_signed, 0,
       "r_callr", TRUE, 0xfff, 0xfff, TRUE);

/* Turn a howto into a reloc number */

static int
coff_z8k_select_reloc (reloc_howto_type *howto)
{
  return howto->type;
}

#define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto)

#define BADMAG(x) Z8KBADMAG(x)
#define Z8K 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';

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

static void
rtype2howto (arelent *internal, struct internal_reloc *dst)
{
  switch (dst->r_type)
    {
    default:
      abort ();
      break;
    case R_IMM8:
      internal->howto = &r_imm8;
      break;
     case R_IMM16:
      internal->howto = &r_da;
      break;
    case R_JR:
      internal->howto = &r_jr;
      break;
    case R_DISP7:
      internal->howto = &r_disp7;
      break;
    case R_CALLR:
      internal->howto = &r_callr;
      break;
    case R_REL16:
      internal->howto = &r_rel16;
      break;
    case R_IMM32:
      internal->howto = &r_imm32;
      break;
    case R_IMM4L:
      internal->howto = &r_imm4l;
      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 (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 (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)
{
  asection * input_section = link_order->u.indirect.section;

  switch (reloc->howto->type)
    {
    case R_IMM8:
      bfd_put_8 (in_abfd,
		 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
		 data + *dst_ptr);
      (*dst_ptr) += 1;
      (*src_ptr) += 1;
      break;

    case R_IMM32:
      /* If no flags are set, assume immediate value.  */
      if (! (*reloc->sym_ptr_ptr)->section->flags)
	{
	  bfd_put_32 (in_abfd,
		      bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section),
		      data + *dst_ptr);
	}
      else
	{
	  bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						    input_section);
	  /* Addresses are 23 bit, and the layout of those in a 32-bit
	     value is as follows:
	       1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA
	     (A - address bits,  x - ignore).  */
	  dst = (dst & 0xffff) | ((dst & 0xff0000) << 8) | 0x80000000;
	  bfd_put_32 (in_abfd, dst, data + *dst_ptr);
	}
      (*dst_ptr) += 4;
      (*src_ptr) += 4;
      break;

    case R_IMM4L:
      bfd_put_8 (in_abfd,
		 ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
		  | (0x0f
		     & bfd_coff_reloc16_get_value (reloc, link_info,
						   input_section))),
		 data + *dst_ptr);
      (*dst_ptr) += 1;
      (*src_ptr) += 1;
      break;

    case R_IMM16:
      bfd_put_16 (in_abfd,
		  bfd_coff_reloc16_get_value (reloc, link_info, input_section),
		  data + *dst_ptr);
      (*dst_ptr) += 2;
      (*src_ptr) += 2;
      break;

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

	if (gap & 1)
	  abort ();
	gap /= 2;
	if (gap > 128 || gap < -128)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, NULL,
		    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_DISP7:
      {
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = (link_order->offset
		       + *dst_ptr
		       + input_section->output_section->vma);
	int gap = dst - dot - 1;  /* -1, since we're in the odd byte of the
                                     word and the pc's been incremented.  */

	if (gap & 1)
	  abort ();
	gap /= 2;

	if (gap > 0 || gap < -127)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, NULL,
		    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,
                   (bfd_get_8 ( in_abfd, data + *dst_ptr) & 0x80) + (-gap & 0x7f),
                   data + *dst_ptr);
	(*dst_ptr)++;
	(*src_ptr)++;
	break;
      }

    case R_CALLR:
      {
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = (link_order->offset
		       + *dst_ptr
		       + input_section->output_section->vma);
	int gap = dst - dot - 2;

	if (gap & 1)
	  abort ();
	if (gap > 4096 || gap < -4095)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, NULL,
		    bfd_asymbol_name (*reloc->sym_ptr_ptr),
		    reloc->howto->name, reloc->addend, input_section->owner,
		    input_section, reloc->address)))
	      abort ();
	  }
	gap /= 2;
	bfd_put_16 (in_abfd,
                    (bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff),
                    data + *dst_ptr);
	(*dst_ptr) += 2;
	(*src_ptr) += 2;
	break;
      }

    case R_REL16:
      {
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
						  input_section);
	bfd_vma dot = (link_order->offset
		       + *dst_ptr
		       + input_section->output_section->vma);
	int gap = dst - dot - 2;

	if (gap > 32767 || gap < -32768)
	  {
	    if (! ((*link_info->callbacks->reloc_overflow)
		   (link_info, NULL,
		    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, (bfd_vma) 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 (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL, COFF_SWAP_TABLE)
Commit	Line	Data
252b5132	1	/* BFD back-end for Zilog Z800n COFF binaries.
eac93a98	2	Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002, 2003
7898deda	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/z8k.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_imm32 =
b34976b6 AM	34	HOWTO (R_IMM32, 0, 2, 32, FALSE, 0,
	35	complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff,
	36	0xffffffff, FALSE);
252b5132 RH	37
252b5132 RH	38	static reloc_howto_type r_imm4l =
b34976b6 AM	39	HOWTO (R_IMM4L, 0, 0, 4, FALSE, 0,
b34976b6 AM	40	complain_overflow_bitfield, 0, "r_imm4l", TRUE, 0xf, 0xf, FALSE);
252b5132 RH	41
252b5132 RH	42	static reloc_howto_type r_da =
b34976b6 AM	43	HOWTO (R_IMM16, 0, 1, 16, FALSE, 0,
	44	complain_overflow_bitfield, 0, "r_da", TRUE, 0x0000ffff, 0x0000ffff,
	45	FALSE);
252b5132 RH	46
252b5132 RH	47	static reloc_howto_type r_imm8 =
b34976b6 AM	48	HOWTO (R_IMM8, 0, 0, 8, FALSE, 0,
	49	complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff,
	50	FALSE);
252b5132	51
6840198f	52	static reloc_howto_type r_rel16 =
b34976b6 AM	53	HOWTO (R_REL16, 0, 1, 16, FALSE, 0,
	54	complain_overflow_bitfield, 0, "r_rel16", TRUE, 0x0000ffff, 0x0000ffff,
	55	TRUE);
6840198f	56
252b5132	57	static reloc_howto_type r_jr =
b34976b6 AM	58	HOWTO (R_JR, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,
b34976b6 AM	59	"r_jr", TRUE, 0, 0, TRUE);
252b5132	60
6840198f	61	static reloc_howto_type r_disp7 =
b34976b6 AM	62	HOWTO (R_DISP7, 0, 0, 7, TRUE, 0, complain_overflow_bitfield, 0,
b34976b6 AM	63	"r_disp7", TRUE, 0, 0, TRUE);
6840198f NC	64
6840198f NC	65	static reloc_howto_type r_callr =
b34976b6 AM	66	HOWTO (R_CALLR, 0, 1, 12, TRUE, 0, complain_overflow_signed, 0,
b34976b6 AM	67	"r_callr", TRUE, 0xfff, 0xfff, TRUE);
6840198f	68
252b5132 RH	69	/* Turn a howto into a reloc number */
252b5132 RH	70
cbfe05c4	71	static int
552585ed	72	coff_z8k_select_reloc (reloc_howto_type *howto)
252b5132 RH	73	{
	74	return howto->type;
	75	}
	76
	77	#define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto)
	78
252b5132 RH	79	#define BADMAG(x) Z8KBADMAG(x)
	80	#define Z8K 1 /* Customize coffcode.h */
	81	#define __A_MAGIC_SET__
	82
f4ffd778	83	/* Code to swap in the reloc. */
dc810e39 AM	84	#define SWAP_IN_RELOC_OFFSET H_GET_32
dc810e39 AM	85	#define SWAP_OUT_RELOC_OFFSET H_PUT_32
252b5132 RH	86	#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
	87	dst->r_stuff[0] = 'S'; \
	88	dst->r_stuff[1] = 'C';
	89
f4ffd778	90	/* Code to turn a r_type into a howto ptr, uses the above howto table. */
252b5132 RH	91
252b5132 RH	92	static void
552585ed	93	rtype2howto (arelent internal, struct internal_reloc dst)
252b5132 RH	94	{
	95	switch (dst->r_type)
	96	{
	97	default:
	98	abort ();
	99	break;
	100	case R_IMM8:
	101	internal->howto = &r_imm8;
	102	break;
	103	case R_IMM16:
	104	internal->howto = &r_da;
	105	break;
	106	case R_JR:
	107	internal->howto = &r_jr;
	108	break;
6840198f NC	109	case R_DISP7:
	110	internal->howto = &r_disp7;
	111	break;
	112	case R_CALLR:
	113	internal->howto = &r_callr;
	114	break;
	115	case R_REL16:
	116	internal->howto = &r_rel16;
	117	break;
252b5132 RH	118	case R_IMM32:
	119	internal->howto = &r_imm32;
	120	break;
	121	case R_IMM4L:
	122	internal->howto = &r_imm4l;
	123	break;
	124	}
	125	}
	126
f4ffd778	127	#define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
252b5132	128
f4ffd778	129	/* Perform any necessary magic to the addend in a reloc entry. */
252b5132	130
252b5132 RH	131	#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
	132	cache_ptr->addend = ext_reloc.r_offset;
	133
252b5132 RH	134	#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
	135	reloc_processing(relent, reloc, symbols, abfd, section)
	136
cbfe05c4	137	static void
552585ed CG	138	reloc_processing (arelent *relent,
	139	struct internal_reloc *reloc,
	140	asymbol **symbols,
	141	bfd *abfd,
	142	asection *section)
252b5132 RH	143	{
	144	relent->address = reloc->r_vaddr;
	145	rtype2howto (relent, reloc);
	146
	147	if (reloc->r_symndx > 0)
879db8be	148	relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
252b5132	149	else
879db8be	150	relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
252b5132	151
252b5132 RH	152	relent->addend = reloc->r_offset;
	153	relent->address -= section->vma;
	154	}
	155
	156	static void
552585ed CG	157	extra_case (bfd *in_abfd,
	158	struct bfd_link_info *link_info,
	159	struct bfd_link_order *link_order,
	160	arelent *reloc,
	161	bfd_byte *data,
	162	unsigned int *src_ptr,
	163	unsigned int *dst_ptr)
252b5132	164	{
879db8be	165	asection * input_section = link_order->u.indirect.section;
252b5132 RH	166
	167	switch (reloc->howto->type)
	168	{
	169	case R_IMM8:
	170	bfd_put_8 (in_abfd,
	171	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	172	data + *dst_ptr);
	173	(*dst_ptr) += 1;
	174	(*src_ptr) += 1;
	175	break;
	176
	177	case R_IMM32:
3c25c5f6 NC	178	/* If no flags are set, assume immediate value. */
	179	if (! (*reloc->sym_ptr_ptr)->section->flags)
	180	{
	181	bfd_put_32 (in_abfd,
	182	bfd_coff_reloc16_get_value (reloc, link_info,
	183	input_section),
	184	data + *dst_ptr);
	185	}
	186	else
	187	{
	188	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	189	input_section);
5c4491d3	190	/* Addresses are 23 bit, and the layout of those in a 32-bit
3c25c5f6 NC	191	value is as follows:
	192	1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA
	193	(A - address bits, x - ignore). */
	194	dst = (dst & 0xffff) \| ((dst & 0xff0000) << 8) \| 0x80000000;
	195	bfd_put_32 (in_abfd, dst, data + *dst_ptr);
	196	}
252b5132 RH	197	(*dst_ptr) += 4;
	198	(*src_ptr) += 4;
	199	break;
	200
	201	case R_IMM4L:
	202	bfd_put_8 (in_abfd,
cbfe05c4	203	((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
252b5132 RH	204	\| (0x0f
	205	& bfd_coff_reloc16_get_value (reloc, link_info,
	206	input_section))),
	207	data + *dst_ptr);
	208	(*dst_ptr) += 1;
	209	(*src_ptr) += 1;
	210	break;
	211
	212	case R_IMM16:
	213	bfd_put_16 (in_abfd,
	214	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	215	data + *dst_ptr);
	216	(*dst_ptr) += 2;
	217	(*src_ptr) += 2;
	218	break;
	219
	220	case R_JR:
	221	{
	222	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	223	input_section);
	224	bfd_vma dot = (link_order->offset
	225	+ *dst_ptr
	226	+ input_section->output_section->vma);
879db8be NC	227	int gap = dst - dot - 1; /* -1, since we're in the odd byte of the
879db8be NC	228	word and the pc's been incremented. */
252b5132 RH	229
	230	if (gap & 1)
	231	abort ();
	232	gap /= 2;
	233	if (gap > 128 \|\| gap < -128)
	234	{
	235	if (! ((*link_info->callbacks->reloc_overflow)
dfeffb9f L	236	(link_info, NULL,
dfeffb9f L	237	bfd_asymbol_name (*reloc->sym_ptr_ptr),
252b5132 RH	238	reloc->howto->name, reloc->addend, input_section->owner,
	239	input_section, reloc->address)))
	240	abort ();
	241	}
	242	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
	243	(*dst_ptr)++;
	244	(*src_ptr)++;
	245	break;
	246	}
6840198f NC	247
	248	case R_DISP7:
	249	{
	250	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	251	input_section);
	252	bfd_vma dot = (link_order->offset
	253	+ *dst_ptr
	254	+ input_section->output_section->vma);
879db8be NC	255	int gap = dst - dot - 1; /* -1, since we're in the odd byte of the
879db8be NC	256	word and the pc's been incremented. */
6840198f NC	257
	258	if (gap & 1)
	259	abort ();
	260	gap /= 2;
	261
8b7cf393	262	if (gap > 0 \|\| gap < -127)
6840198f NC	263	{
6840198f NC	264	if (! ((*link_info->callbacks->reloc_overflow)
dfeffb9f L	265	(link_info, NULL,
dfeffb9f L	266	bfd_asymbol_name (*reloc->sym_ptr_ptr),
6840198f NC	267	reloc->howto->name, reloc->addend, input_section->owner,
	268	input_section, reloc->address)))
	269	abort ();
	270	}
	271	bfd_put_8 (in_abfd,
	272	(bfd_get_8 ( in_abfd, data + *dst_ptr) & 0x80) + (-gap & 0x7f),
	273	data + *dst_ptr);
	274	(*dst_ptr)++;
	275	(*src_ptr)++;
	276	break;
	277	}
	278
	279	case R_CALLR:
	280	{
	281	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	282	input_section);
	283	bfd_vma dot = (link_order->offset
	284	+ *dst_ptr
	285	+ input_section->output_section->vma);
	286	int gap = dst - dot - 2;
	287
	288	if (gap & 1)
	289	abort ();
8b7cf393	290	if (gap > 4096 \|\| gap < -4095)
6840198f NC	291	{
6840198f NC	292	if (! ((*link_info->callbacks->reloc_overflow)
dfeffb9f L	293	(link_info, NULL,
dfeffb9f L	294	bfd_asymbol_name (*reloc->sym_ptr_ptr),
6840198f NC	295	reloc->howto->name, reloc->addend, input_section->owner,
	296	input_section, reloc->address)))
	297	abort ();
	298	}
8b7cf393	299	gap /= 2;
6840198f NC	300	bfd_put_16 (in_abfd,
	301	(bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) \| (-gap & 0x0fff),
	302	data + *dst_ptr);
	303	(*dst_ptr) += 2;
	304	(*src_ptr) += 2;
	305	break;
	306	}
	307
	308	case R_REL16:
	309	{
	310	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	311	input_section);
	312	bfd_vma dot = (link_order->offset
	313	+ *dst_ptr
	314	+ input_section->output_section->vma);
	315	int gap = dst - dot - 2;
	316
	317	if (gap > 32767 \|\| gap < -32768)
	318	{
	319	if (! ((*link_info->callbacks->reloc_overflow)
dfeffb9f L	320	(link_info, NULL,
dfeffb9f L	321	bfd_asymbol_name (*reloc->sym_ptr_ptr),
6840198f NC	322	reloc->howto->name, reloc->addend, input_section->owner,
	323	input_section, reloc->address)))
	324	abort ();
	325	}
dc810e39	326	bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
6840198f NC	327	(*dst_ptr) += 2;
	328	(*src_ptr) += 2;
	329	break;
	330	}
879db8be	331
252b5132 RH	332	default:
	333	abort ();
	334	}
	335	}
	336
	337	#define coff_reloc16_extra_cases extra_case
	338
	339	#include "coffcode.h"
	340
252b5132 RH	341	#undef coff_bfd_get_relocated_section_contents
	342	#undef coff_bfd_relax_section
	343	#define coff_bfd_get_relocated_section_contents \
	344	bfd_coff_reloc16_get_relocated_section_contents
	345	#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
	346
3fa78519	347	CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL, COFF_SWAP_TABLE)