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

/* BFD back-end for Hitachi H8/500 COFF binaries.
   Copyright 1993 Free Software Foundation, Inc.
   Contributed by Cygnus Support.
   Written by Steve Chamberlain, <[email protected]>.

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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

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

extern bfd_error_vector_type bfd_error_vector;

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

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

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

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


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

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

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


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

static reloc_howto_type r_high16 =
HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0, true,
       true, 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= 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:
      printf ("BAD 0x%x\n", dst->r_type);
    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 necessaru 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_symbol);
    }


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

static void
extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
     bfd *in_abfd;
     bfd_seclet_type *seclet;
     arelent *reloc;
     bfd_byte *data;
     unsigned int *src_ptr;
     unsigned int *dst_ptr;
{
  bfd_byte *d = data+*dst_ptr;
  switch (reloc->howto->type)
    {
    case R_H8500_IMM8:
      bfd_put_8 (in_abfd,
		 bfd_coff_reloc16_get_value (reloc, seclet),
		 d);
      (*dst_ptr) += 1;
      (*src_ptr) += 1;
      break;

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

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

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

      (*dst_ptr) += 2;
      (*src_ptr) += 2;
      break;
      
    case R_H8500_HIGH16:
      bfd_put_16 (in_abfd,
		  bfd_coff_reloc16_get_value (reloc, seclet)>>16 ,
		  d);

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

    case R_H8500_IMM24:
      {
	int v = bfd_coff_reloc16_get_value(reloc, seclet);
	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, seclet);
	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, seclet);
	bfd_vma dot = seclet->offset
	  + *dst_ptr
	    + seclet->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)
	  {
	    bfd_error_vector.reloc_value_truncated (reloc, seclet);
	  }
	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, seclet);
	bfd_vma dot = seclet->offset
	  + *dst_ptr
	    + seclet->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)
	  {
	    bfd_error_vector.reloc_value_truncated (reloc, seclet);
	  }
	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

bfd_target h8500coff_vec =
{
  "coff-h8500",			/* name */
  bfd_target_coff_flavour,
  true,				/* data byte order is big */
  true,				/* header byte order is big */

  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),

  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* section flags */
  '_',				/* leading symbol underscore */
  '/',				/* ar_pad_char */
  15,				/* ar_max_namelen */
  1,				/* minimum section alignment */
  _do_getb64, _do_getb_signed_64, _do_putb64,
     _do_getb32, _do_getb_signed_32, _do_putb32,
     _do_getb16, _do_getb_signed_16, _do_putb16,	/* data */
  _do_getb64, _do_getb_signed_64, _do_putb64,
     _do_getb32, _do_getb_signed_32, _do_putb32,
     _do_getb16, _do_getb_signed_16, _do_putb16,	/* hdrs */

  {_bfd_dummy_target, coff_object_p,	/* bfd_check_format */
   bfd_generic_archive_p, _bfd_dummy_target},
  {bfd_false, coff_mkobject, _bfd_generic_mkarchive,	/* bfd_set_format */
   bfd_false},
  {bfd_false, coff_write_object_contents,	/* bfd_write_contents */
   _bfd_write_archive_contents, bfd_false},

  JUMP_TABLE (coff),
  COFF_SWAP_TABLE,
};
Commit	Line	Data
46dd0622 SC	1	/* BFD back-end for Hitachi H8/500 COFF binaries.
	2	Copyright 1993 Free Software Foundation, Inc.
	3	Contributed by Cygnus Support.
	4	Written by Steve Chamberlain, <[email protected]>.
	5
	6	This file is part of BFD, the Binary File Descriptor library.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	21
	22	#include "bfd.h"
	23	#include "sysdep.h"
	24	#include "libbfd.h"
	25	#include "obstack.h"
	26	#include "coff/h8500.h"
	27	#include "coff/internal.h"
	28	#include "libcoff.h"
	29	#include "seclet.h"
	30
	31	extern bfd_error_vector_type bfd_error_vector;
	32
	33	static reloc_howto_type r_imm8 =
	34	HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0, true,
	35	true, 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, true,
	39	true, 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, true,
	43	true, 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, true,
	47	true, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false);
	48
	49
	50	static reloc_howto_type r_high8 =
	51	HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0, true,
	52	true, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);
	53
	54	static reloc_howto_type r_low16 =
	55	HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0, true,
	56	true, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);
	57
	58	static reloc_howto_type r_pcrel8 =
	59	HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, true, true, 0, "r_pcrel8", true, 0, 0, true);
	60
	61
	62	static reloc_howto_type r_pcrel16 =
	63	HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, true, true, 0, "r_pcrel16", true, 0, 0, true);
	64
65	static reloc_howto_type r_high16 =
66	HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0, true,
67	true, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
68
69
70	/* Turn a howto into a reloc number */
71
72	static int
73	coff_h8500_select_reloc (howto)
74	reloc_howto_type *howto;
75	{
76	return howto->type;
77	}
78
79	#define SELECT_RELOC(x,howto) x= coff_h8500_select_reloc(howto)
80
81
82	#define BADMAG(x) H8500BADMAG(x)
83	#define H8500 1 /* Customize coffcode.h */
84
85	#define __A_MAGIC_SET__
86
87	/* Code to swap in the reloc */
88	#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
89	#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
90	#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
91	dst->r_stuff[0] = 'S'; \
92	dst->r_stuff[1] = 'C';
93
94	/* Code to turn a r_type into a howto ptr, uses the above howto table
95	*/
96
97	static void
98	rtype2howto(internal, dst)
99	arelent * internal;
100	struct internal_reloc *dst;
101	{
102	switch (dst->r_type)
103	{
104	default:
105	printf ("BAD 0x%x\n", dst->r_type);
106	case R_H8500_IMM8:
107	internal->howto = &r_imm8;
108	break;
109	case R_H8500_IMM16:
110	internal->howto = &r_imm16;
111	break;
112	case R_H8500_IMM24:
113	internal->howto = &r_imm24;
114	break;
115	case R_H8500_IMM32:
116	internal->howto = &r_imm32;
117	break;
118	case R_H8500_PCREL8:
119	internal->howto = &r_pcrel8;
120	break;
121	case R_H8500_PCREL16:
122	internal->howto = &r_pcrel16;
123	break;
124	case R_H8500_HIGH8:
125	internal->howto = &r_high8;
126	break;
127	case R_H8500_HIGH16:
128	internal->howto = &r_high16;
129	break;
130	case R_H8500_LOW16:
131	internal->howto = &r_low16;
132	break;
133	}
134	}
135
136	#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
137
138
139	/* Perform any necessaru magic to the addend in a reloc entry */
140
141
142	#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
143	cache_ptr->addend = ext_reloc.r_offset;
144
145
146	#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
147	reloc_processing(relent, reloc, symbols, abfd, section)
148
149	static void reloc_processing (relent, reloc, symbols, abfd, section)
150	arelent * relent;
151	struct internal_reloc *reloc;
152	asymbol ** symbols;
153	bfd * abfd;
154	asection * section;
155	{
156	relent->address = reloc->r_vaddr;
157	rtype2howto (relent, reloc);
158
159	if (reloc->r_symndx > 0)
160	{
161	relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
162	}
163	else
164	{
165	relent->sym_ptr_ptr = &(bfd_abs_symbol);
166	}
167
168
169	relent->addend = reloc->r_offset;
170	relent->address -= section->vma;
171	}
172
173	static void
174	extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
175	bfd *in_abfd;
176	bfd_seclet_type *seclet;
177	arelent *reloc;
178	bfd_byte *data;
179	unsigned int *src_ptr;
180	unsigned int *dst_ptr;
181	{
182	bfd_byte d = data+dst_ptr;
183	switch (reloc->howto->type)
184	{
185	case R_H8500_IMM8:
186	bfd_put_8 (in_abfd,
187	bfd_coff_reloc16_get_value (reloc, seclet),
188	d);
189	(*dst_ptr) += 1;
190	(*src_ptr) += 1;
191	break;
192
193	case R_H8500_HIGH8:
194	bfd_put_8 (in_abfd,
195	(bfd_coff_reloc16_get_value (reloc, seclet)>>16),
196	d );
197	(*dst_ptr) += 1;
198	(*src_ptr) += 1;
199	break;
200
201	case R_H8500_IMM16:
202	bfd_put_16 (in_abfd,
203	bfd_coff_reloc16_get_value (reloc, seclet) ,
204	d );
205	(*dst_ptr) += 2;
206	(*src_ptr) += 2;
207	break;
208
209	case R_H8500_LOW16:
210	bfd_put_16 (in_abfd,
211	bfd_coff_reloc16_get_value (reloc, seclet) ,
212	d);
213
214	(*dst_ptr) += 2;
215	(*src_ptr) += 2;
216	break;
217
218	case R_H8500_HIGH16:
219	bfd_put_16 (in_abfd,
220	bfd_coff_reloc16_get_value (reloc, seclet)>>16 ,
221	d);
222
223	(*dst_ptr) += 2;
224	(*src_ptr) += 2;
225	break;
226
227	case R_H8500_IMM24:
228	{
229	int v = bfd_coff_reloc16_get_value(reloc, seclet);
230	int o = bfd_get_32(in_abfd, data+ *dst_ptr -1);
231	v = (v & 0x00ffffff) \| (o & 0xff00000);
232	bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
233	(*dst_ptr) +=3;
234	(*src_ptr)+=3;;
235	}
236	break;
237	case R_H8500_IMM32:
238	{
239	int v = bfd_coff_reloc16_get_value(reloc, seclet);
240	bfd_put_32 (in_abfd, v, data + *dst_ptr);
241	(*dst_ptr) +=4;
242	(*src_ptr)+=4;;
243	}
244	break;
245
246
247	case R_H8500_PCREL8:
248	{
249	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet);
250	bfd_vma dot = seclet->offset
251	+ *dst_ptr
252	+ seclet->u.indirect.section->output_section->vma;
253	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
254	word and the pc's been incremented */
255
256	if (gap > 128 \|\| gap < -128)
257	{
258	bfd_error_vector.reloc_value_truncated (reloc, seclet);
259	}
260	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
261	(*dst_ptr)++;
262	(*src_ptr)++;
263	break;
264	}
265	case R_H8500_PCREL16:
266	{
267	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet);
268	bfd_vma dot = seclet->offset
269	+ *dst_ptr
270	+ seclet->u.indirect.section->output_section->vma;
271	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
272	word and the pc's been incremented */
273
274	if (gap > 32767 \|\| gap < -32768)
275	{
276	bfd_error_vector.reloc_value_truncated (reloc, seclet);
277	}
278	bfd_put_16 (in_abfd, gap, data + *dst_ptr);
279	(*dst_ptr)+=2;
280	(*src_ptr)+=2;
281	break;
282	}
283
284	default:
285	abort ();
286	}
287	}
288
289	#define coff_reloc16_extra_cases extra_case
290
291	#include "coffcode.h"
292
293
294	#undef coff_bfd_get_relocated_section_contents
295	#undef coff_bfd_relax_section
296	#define coff_bfd_get_relocated_section_contents bfd_coff_reloc16_get_relocated_section_contents
297	#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
298
299	bfd_target h8500coff_vec =
300	{
301	"coff-h8500", /* name */
302	bfd_target_coff_flavour,
303	true, /* data byte order is big */
304	true, /* header byte order is big */
305
306	(HAS_RELOC \| EXEC_P \| /* object flags */
307	HAS_LINENO \| HAS_DEBUG \|
308	HAS_SYMS \| HAS_LOCALS \| DYNAMIC \| WP_TEXT),
309
310	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
311	'_', /* leading symbol underscore */
312	'/', /* ar_pad_char */
313	15, /* ar_max_namelen */
314	1, /* minimum section alignment */
315	_do_getb64, _do_getb_signed_64, _do_putb64,
316	_do_getb32, _do_getb_signed_32, _do_putb32,
317	_do_getb16, _do_getb_signed_16, _do_putb16, /* data */
318	_do_getb64, _do_getb_signed_64, _do_putb64,
319	_do_getb32, _do_getb_signed_32, _do_putb32,
320	_do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */
321
322	{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
323	bfd_generic_archive_p, _bfd_dummy_target},
324	{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
325	bfd_false},
326	{bfd_false, coff_write_object_contents, /* bfd_write_contents */
327	_bfd_write_archive_contents, bfd_false},
328
329	JUMP_TABLE (coff),
330	COFF_SWAP_TABLE,
331	};