[deliverable/binutils-gdb.git] / bfd / aout-ns32k.c

/* BFD back-end for ns32k a.out-ish binaries.
   Copyright (C) 1990-2014 Free Software Foundation, Inc.
   Contributed by Ian Dall (idall@eleceng.adelaide.edu.au).

   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 "bfd.h"
#include "aout/aout64.h"
#include "ns32k.h"

/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
   remove whitespace added here, and thus will fail to concatenate
   the tokens.  */
#define MYNS(OP) CONCAT2 (ns32k_aout_,OP)

reloc_howto_type * MYNS (bfd_reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
reloc_howto_type * MYNS (bfd_reloc_name_lookup) (bfd *, const char *);
bfd_boolean        MYNS (write_object_contents) (bfd *);

/* Avoid multiple definitions from aoutx if supporting
   standard a.out format(s) as well as this one.  */
#define NAME(x,y) CONCAT3 (ns32kaout,_32_,y)

void bfd_ns32k_arch (void);

#include "libaout.h"

#define MY(OP) MYNS (OP)

#define MY_swap_std_reloc_in   MY (swap_std_reloc_in)
#define MY_swap_std_reloc_out  MY (swap_std_reloc_out)

/* The ns32k series is ah, unusual, when it comes to relocation.
   There are three storage methods for relocatable objects.  There
   are displacements, immediate operands and ordinary twos complement
   data. Of these, only the last fits into the standard relocation
   scheme.  Immediate operands are stored huffman encoded and
   immediate operands are stored big endian (where as the natural byte
   order is little endian for this architecture).

   Note that the ns32k displacement storage method is orthogonal to
   whether the relocation is pc relative or not. The "displacement"
   storage scheme is used for essentially all address constants. The
   displacement can be relative to zero (absolute displacement),
   relative to the pc (pc relative), the stack pointer, the frame
   pointer, the static base register and general purpose register etc.

   For example:

   sym1: .long .	 # pc relative 2's complement
   sym1: .long foo	 # 2's complement not pc relative

   self:  movd @self, r0 # pc relative displacement
          movd foo, r0   # non pc relative displacement

   self:  movd self, r0  # pc relative immediate
          movd foo, r0   # non pc relative immediate

   In addition, for historical reasons the encoding of the relocation types
   in the a.out format relocation entries is such that even the relocation
   methods which are standard are not encoded the standard way.  */

reloc_howto_type MY (howto_table)[] =
{
  /* ns32k immediate operands.  */
  HOWTO (BFD_RELOC_NS32K_IMM_8, 0, 0, 8, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm, "NS32K_IMM_8",
	 TRUE, 0x000000ff,0x000000ff, FALSE),
  HOWTO (BFD_RELOC_NS32K_IMM_16, 0, 1, 16, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm,  "NS32K_IMM_16",
	 TRUE, 0x0000ffff,0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_IMM_32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm, "NS32K_IMM_32",
	 TRUE, 0xffffffff,0xffffffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_IMM_8_PCREL, 0, 0, 8, TRUE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_8",
	 TRUE, 0x000000ff, 0x000000ff, FALSE),
  HOWTO (BFD_RELOC_NS32K_IMM_16_PCREL, 0, 1, 16, TRUE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_16",
	 TRUE, 0x0000ffff,0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_IMM_32_PCREL, 0, 2, 32, TRUE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_32",
	 TRUE, 0xffffffff,0xffffffff, FALSE),

  /* ns32k displacements.  */
  HOWTO (BFD_RELOC_NS32K_DISP_8, 0, 0, 7, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_disp, "NS32K_DISP_8",
	 TRUE, 0x000000ff,0x000000ff, FALSE),
  HOWTO (BFD_RELOC_NS32K_DISP_16, 0, 1, 14, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_disp, "NS32K_DISP_16",
	 TRUE, 0x0000ffff, 0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_DISP_32, 0, 2, 30, FALSE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_disp, "NS32K_DISP_32",
	 TRUE, 0xffffffff, 0xffffffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_DISP_8_PCREL, 0, 0, 7, TRUE, 0, complain_overflow_signed,
	   _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_8",
	 TRUE, 0x000000ff,0x000000ff, FALSE),
  HOWTO (BFD_RELOC_NS32K_DISP_16_PCREL, 0, 1, 14, TRUE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_16",
	 TRUE, 0x0000ffff,0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_NS32K_DISP_32_PCREL, 0, 2, 30, TRUE, 0, complain_overflow_signed,
	 _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_32",
	 TRUE, 0xffffffff,0xffffffff, FALSE),

  /* Normal 2's complement.  */
  HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,
	 "8", TRUE, 0x000000ff,0x000000ff, FALSE),
  HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,
	 "16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,
	 "32", TRUE, 0xffffffff,0xffffffff, FALSE),
  HOWTO (BFD_RELOC_8_PCREL, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,
	 "PCREL_8", TRUE, 0x000000ff,0x000000ff, FALSE),
  HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,
	 "PCREL_16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
  HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,
	 "PCREL_32", TRUE, 0xffffffff,0xffffffff, FALSE),
};

#define CTOR_TABLE_RELOC_HOWTO(BFD) (MY (howto_table) + 14)

#define RELOC_STD_BITS_NS32K_TYPE_BIG 		0x06
#define RELOC_STD_BITS_NS32K_TYPE_LITTLE 	0x60
#define RELOC_STD_BITS_NS32K_TYPE_SH_BIG 	1
#define RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE 	5

static reloc_howto_type *
MY (reloc_howto) (bfd *abfd ATTRIBUTE_UNUSED,
		  struct reloc_std_external *rel,
		  int *r_index,
		  int *r_extern,
		  int *r_pcrel)
{
  unsigned int r_length;
  int r_ns32k_type;

  *r_index =  ((rel->r_index[2] << 16)
	       | (rel->r_index[1] << 8)
	       |  rel->r_index[0] );
  *r_extern  = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
  *r_pcrel   = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
  r_length  =  ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
		>> RELOC_STD_BITS_LENGTH_SH_LITTLE);
  r_ns32k_type  =  ((rel->r_type[0] & RELOC_STD_BITS_NS32K_TYPE_LITTLE)
		    >> RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE);
  return (MY (howto_table) + r_length + 3 * (*r_pcrel) + 6 * r_ns32k_type);
}

#define MY_reloc_howto(BFD, REL, IN, EX, PC) \
  MY (reloc_howto) (BFD, REL, &IN, &EX, &PC)

static void
MY (put_reloc) (bfd *abfd,
		int r_extern,
		int r_index,
		bfd_vma value,
		reloc_howto_type *howto,
		struct reloc_std_external *reloc)
{
  unsigned int r_length;
  int r_pcrel;
  int r_ns32k_type;

  PUT_WORD (abfd, value, reloc->r_address);
  r_length = howto->size ;	/* Size as a power of two.  */
  r_pcrel  = (int) howto->pc_relative; /* Relative to PC?  */
  r_ns32k_type = (howto - MY (howto_table) )/6;

  reloc->r_index[2] = r_index >> 16;
  reloc->r_index[1] = r_index >> 8;
  reloc->r_index[0] = r_index;
  reloc->r_type[0] =
    (r_extern?    RELOC_STD_BITS_EXTERN_LITTLE: 0)
      | (r_pcrel?     RELOC_STD_BITS_PCREL_LITTLE: 0)
	| (r_length <<  RELOC_STD_BITS_LENGTH_SH_LITTLE)
	  | (r_ns32k_type <<  RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE);
}

#define MY_put_reloc(BFD, EXT, IDX, VAL, HOWTO, RELOC) \
  MY (put_reloc) (BFD, EXT, IDX, VAL, HOWTO, RELOC)

#define STAT_FOR_EXEC

#define MY_final_link_relocate _bfd_ns32k_final_link_relocate
#define MY_relocate_contents   _bfd_ns32k_relocate_contents

static void MY_swap_std_reloc_in (bfd *, struct reloc_std_external *, arelent *, asymbol **, bfd_size_type);
static void MY_swap_std_reloc_out (bfd *, arelent *, struct reloc_std_external *);

#include "aoutx.h"

reloc_howto_type *
MY (bfd_reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
{
#define ENTRY(i,j)	case i: return &MY (howto_table)[j]

  int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;

  BFD_ASSERT (ext == 0);
  if (code == BFD_RELOC_CTOR)
    switch (bfd_arch_bits_per_address (abfd))
      {
      case 32:
	code = BFD_RELOC_32;
	break;
      default:
	break;
      }
  switch (code)
    {
      ENTRY (BFD_RELOC_NS32K_IMM_8, 0);
      ENTRY (BFD_RELOC_NS32K_IMM_16, 1);
      ENTRY (BFD_RELOC_NS32K_IMM_32, 2);
      ENTRY (BFD_RELOC_NS32K_IMM_8_PCREL, 3);
      ENTRY (BFD_RELOC_NS32K_IMM_16_PCREL, 4);
      ENTRY (BFD_RELOC_NS32K_IMM_32_PCREL, 5);
      ENTRY (BFD_RELOC_NS32K_DISP_8, 6);
      ENTRY (BFD_RELOC_NS32K_DISP_16, 7);
      ENTRY (BFD_RELOC_NS32K_DISP_32, 8);
      ENTRY (BFD_RELOC_NS32K_DISP_8_PCREL, 9);
      ENTRY (BFD_RELOC_NS32K_DISP_16_PCREL, 10);
      ENTRY (BFD_RELOC_NS32K_DISP_32_PCREL, 11);
      ENTRY (BFD_RELOC_8, 12);
      ENTRY (BFD_RELOC_16, 13);
      ENTRY (BFD_RELOC_32, 14);
      ENTRY (BFD_RELOC_8_PCREL, 15);
      ENTRY (BFD_RELOC_16_PCREL, 16);
      ENTRY (BFD_RELOC_32_PCREL, 17);
    default:
      return NULL;
    }
#undef ENTRY
}

reloc_howto_type *
MY (bfd_reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED,
			    const char *r_name)
{
  unsigned int i;

  for (i = 0;
       i < sizeof (MY (howto_table)) / sizeof (MY (howto_table)[0]);
       i++)
    if (MY (howto_table)[i].name != NULL
	&& strcasecmp (MY (howto_table)[i].name, r_name) == 0)
      return &MY (howto_table)[i];

  return NULL;
}

static void
MY_swap_std_reloc_in (bfd *abfd,
		      struct reloc_std_external *bytes,
		      arelent *cache_ptr,
		      asymbol **symbols,
		      bfd_size_type symcount ATTRIBUTE_UNUSED)
{
  int r_index;
  int r_extern;
  int r_pcrel;
  struct aoutdata  *su = &(abfd->tdata.aout_data->a);

  cache_ptr->address = H_GET_32 (abfd, bytes->r_address);

  /* Now the fun stuff.  */
  cache_ptr->howto = MY_reloc_howto (abfd, bytes, r_index, r_extern, r_pcrel);

  MOVE_ADDRESS (0);
}

static void
MY_swap_std_reloc_out (bfd *abfd,
		       arelent *g,
		       struct reloc_std_external *natptr)
{
  int r_index;
  asymbol *sym = *(g->sym_ptr_ptr);
  int r_extern;
  asection *output_section = sym->section->output_section;

  /* Name was clobbered by aout_write_syms to be symbol index.  */

  /* If this relocation is relative to a symbol then set the
     r_index to the symbols index, and the r_extern bit.

     Absolute symbols can come in in two ways, either as an offset
     from the abs section, or as a symbol which has an abs value.
     Check for that here.  */
  if (bfd_is_com_section (output_section)
      || bfd_is_abs_section (output_section)
      || bfd_is_und_section (output_section))
    {
      if (bfd_abs_section_ptr->symbol == sym)
	{
	  /* Whoops, looked like an abs symbol, but is really an offset
	     from the abs section.  */
	  r_index = 0;
	  r_extern = 0;
	}
      else
	{
	  /* Fill in symbol.  */
	  r_extern = 1;
#undef KEEPIT
#define KEEPIT udata.i
	  r_index =  (*(g->sym_ptr_ptr))->KEEPIT;
#undef KEEPIT
	}
    }
  else
    {
      /* Just an ordinary section.  */
      r_extern = 0;
      r_index  = output_section->target_index;
    }

  MY_put_reloc (abfd, r_extern, r_index, g->address, g->howto, natptr);
}

bfd_reloc_status_type
_bfd_ns32k_relocate_contents (reloc_howto_type *howto,
			      bfd *input_bfd,
			      bfd_vma relocation,
			      bfd_byte *location)
{
  int r_ns32k_type = (howto - MY (howto_table)) / 6;
  bfd_vma (*get_data) (bfd_byte *, int);
  void (*put_data) (bfd_vma, bfd_byte *, int);

  switch (r_ns32k_type)
    {
    case 0:
      get_data = _bfd_ns32k_get_immediate;
      put_data = _bfd_ns32k_put_immediate;
      break;
    case 1:
      get_data = _bfd_ns32k_get_displacement;
      put_data = _bfd_ns32k_put_displacement;
      break;
    case 2:
      return _bfd_relocate_contents (howto, input_bfd, relocation,
				    location);
    default:
      return bfd_reloc_notsupported;
    }
  return _bfd_do_ns32k_reloc_contents (howto, input_bfd, relocation,
				       location, get_data, put_data);
}
Commit	Line	Data
252b5132	1	/* BFD back-end for ns32k a.out-ish binaries.
4b95cf5c	2	Copyright (C) 1990-2014 Free Software Foundation, Inc.
252b5132 RH	3	Contributed by Ian Dall (idall@eleceng.adelaide.edu.au).
252b5132 RH	4
4eb6b71c	5	This file is part of BFD, the Binary File Descriptor library.
252b5132	6
4eb6b71c NC	7	This program is free software; you can redistribute it and/or modify
4eb6b71c NC	8	it under the terms of the GNU General Public License as published by
cd123cb7	9	the Free Software Foundation; either version 3 of the License, or
4eb6b71c	10	(at your option) any later version.
252b5132	11
4eb6b71c NC	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.
252b5132	16
4eb6b71c NC	17	You should have received a copy of the GNU General Public License
4eb6b71c NC	18	along with this program; if not, write to the Free Software
cd123cb7 NC	19	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
cd123cb7 NC	20	MA 02110-1301, USA. */
252b5132	21
691bf19c	22	#include "sysdep.h"
252b5132 RH	23	#include "bfd.h"
	24	#include "aout/aout64.h"
	25	#include "ns32k.h"
	26
e43d48cc AM	27	/* Do not "beautify" the CONCAT* macro args. Traditional C will not
	28	remove whitespace added here, and thus will fail to concatenate
	29	the tokens. */
6d00b590	30	#define MYNS(OP) CONCAT2 (ns32k_aout_,OP)
e43d48cc	31
157090f7 AM	32	reloc_howto_type * MYNS (bfd_reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
	33	reloc_howto_type * MYNS (bfd_reloc_name_lookup) (bfd , const char );
	34	bfd_boolean MYNS (write_object_contents) (bfd *);
252b5132	35
1725a96e NC	36	/* Avoid multiple definitions from aoutx if supporting
1725a96e NC	37	standard a.out format(s) as well as this one. */
e43d48cc	38	#define NAME(x,y) CONCAT3 (ns32kaout,_32_,y)
252b5132	39
7920ce38	40	void bfd_ns32k_arch (void);
252b5132 RH	41
	42	#include "libaout.h"
	43
7920ce38	44	#define MY(OP) MYNS (OP)
252b5132	45
7920ce38 NC	46	#define MY_swap_std_reloc_in MY (swap_std_reloc_in)
7920ce38 NC	47	#define MY_swap_std_reloc_out MY (swap_std_reloc_out)
252b5132 RH	48
252b5132 RH	49	/* The ns32k series is ah, unusual, when it comes to relocation.
1049f94e	50	There are three storage methods for relocatable objects. There
1725a96e NC	51	are displacements, immediate operands and ordinary twos complement
	52	data. Of these, only the last fits into the standard relocation
	53	scheme. Immediate operands are stored huffman encoded and
	54	immediate operands are stored big endian (where as the natural byte
5c4491d3	55	order is little endian for this architecture).
1725a96e NC	56
	57	Note that the ns32k displacement storage method is orthogonal to
	58	whether the relocation is pc relative or not. The "displacement"
	59	storage scheme is used for essentially all address constants. The
	60	displacement can be relative to zero (absolute displacement),
	61	relative to the pc (pc relative), the stack pointer, the frame
	62	pointer, the static base register and general purpose register etc.
	63
	64	For example:
dc810e39	65
1725a96e NC	66	sym1: .long . # pc relative 2's complement
1725a96e NC	67	sym1: .long foo # 2's complement not pc relative
dc810e39	68
1725a96e NC	69	self: movd @self, r0 # pc relative displacement
	70	movd foo, r0 # non pc relative displacement
	71
	72	self: movd self, r0 # pc relative immediate
	73	movd foo, r0 # non pc relative immediate
dc810e39	74
1725a96e NC	75	In addition, for historical reasons the encoding of the relocation types
1725a96e NC	76	in the a.out format relocation entries is such that even the relocation
4eb6b71c	77	methods which are standard are not encoded the standard way. */
252b5132	78
7920ce38 NC	79	reloc_howto_type MY (howto_table)[] =
	80	{
	81	/* ns32k immediate operands. */
	82	HOWTO (BFD_RELOC_NS32K_IMM_8, 0, 0, 8, FALSE, 0, complain_overflow_signed,
	83	_bfd_ns32k_reloc_imm, "NS32K_IMM_8",
	84	TRUE, 0x000000ff,0x000000ff, FALSE),
	85	HOWTO (BFD_RELOC_NS32K_IMM_16, 0, 1, 16, FALSE, 0, complain_overflow_signed,
	86	_bfd_ns32k_reloc_imm, "NS32K_IMM_16",
	87	TRUE, 0x0000ffff,0x0000ffff, FALSE),
	88	HOWTO (BFD_RELOC_NS32K_IMM_32, 0, 2, 32, FALSE, 0, complain_overflow_signed,
	89	_bfd_ns32k_reloc_imm, "NS32K_IMM_32",
	90	TRUE, 0xffffffff,0xffffffff, FALSE),
	91	HOWTO (BFD_RELOC_NS32K_IMM_8_PCREL, 0, 0, 8, TRUE, 0, complain_overflow_signed,
	92	_bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_8",
	93	TRUE, 0x000000ff, 0x000000ff, FALSE),
	94	HOWTO (BFD_RELOC_NS32K_IMM_16_PCREL, 0, 1, 16, TRUE, 0, complain_overflow_signed,
	95	_bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_16",
	96	TRUE, 0x0000ffff,0x0000ffff, FALSE),
	97	HOWTO (BFD_RELOC_NS32K_IMM_32_PCREL, 0, 2, 32, TRUE, 0, complain_overflow_signed,
	98	_bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_32",
	99	TRUE, 0xffffffff,0xffffffff, FALSE),
	100
	101	/* ns32k displacements. */
	102	HOWTO (BFD_RELOC_NS32K_DISP_8, 0, 0, 7, FALSE, 0, complain_overflow_signed,
	103	_bfd_ns32k_reloc_disp, "NS32K_DISP_8",
	104	TRUE, 0x000000ff,0x000000ff, FALSE),
	105	HOWTO (BFD_RELOC_NS32K_DISP_16, 0, 1, 14, FALSE, 0, complain_overflow_signed,
	106	_bfd_ns32k_reloc_disp, "NS32K_DISP_16",
	107	TRUE, 0x0000ffff, 0x0000ffff, FALSE),
	108	HOWTO (BFD_RELOC_NS32K_DISP_32, 0, 2, 30, FALSE, 0, complain_overflow_signed,
	109	_bfd_ns32k_reloc_disp, "NS32K_DISP_32",
	110	TRUE, 0xffffffff, 0xffffffff, FALSE),
	111	HOWTO (BFD_RELOC_NS32K_DISP_8_PCREL, 0, 0, 7, TRUE, 0, complain_overflow_signed,
1725a96e	112	_bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_8",
7920ce38 NC	113	TRUE, 0x000000ff,0x000000ff, FALSE),
	114	HOWTO (BFD_RELOC_NS32K_DISP_16_PCREL, 0, 1, 14, TRUE, 0, complain_overflow_signed,
	115	_bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_16",
	116	TRUE, 0x0000ffff,0x0000ffff, FALSE),
	117	HOWTO (BFD_RELOC_NS32K_DISP_32_PCREL, 0, 2, 30, TRUE, 0, complain_overflow_signed,
	118	_bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_32",
	119	TRUE, 0xffffffff,0xffffffff, FALSE),
	120
	121	/* Normal 2's complement. */
	122	HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,
	123	"8", TRUE, 0x000000ff,0x000000ff, FALSE),
	124	HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,
	125	"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
	126	HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,
	127	"32", TRUE, 0xffffffff,0xffffffff, FALSE),
	128	HOWTO (BFD_RELOC_8_PCREL, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,
	129	"PCREL_8", TRUE, 0x000000ff,0x000000ff, FALSE),
	130	HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,
	131	"PCREL_16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
	132	HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,
	133	"PCREL_32", TRUE, 0xffffffff,0xffffffff, FALSE),
	134	};
	135
	136	#define CTOR_TABLE_RELOC_HOWTO(BFD) (MY (howto_table) + 14)
	137
	138	#define RELOC_STD_BITS_NS32K_TYPE_BIG 0x06
	139	#define RELOC_STD_BITS_NS32K_TYPE_LITTLE 0x60
	140	#define RELOC_STD_BITS_NS32K_TYPE_SH_BIG 1
	141	#define RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE 5
	142
	143	static reloc_howto_type *
	144	MY (reloc_howto) (bfd *abfd ATTRIBUTE_UNUSED,
	145	struct reloc_std_external *rel,
	146	int *r_index,
	147	int *r_extern,
	148	int *r_pcrel)
252b5132 RH	149	{
	150	unsigned int r_length;
	151	int r_ns32k_type;
1725a96e	152
252b5132 RH	153	*r_index = ((rel->r_index[2] << 16)
	154	\| (rel->r_index[1] << 8)
	155	\| rel->r_index[0] );
	156	*r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
	157	*r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
	158	r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
	159	>> RELOC_STD_BITS_LENGTH_SH_LITTLE);
	160	r_ns32k_type = ((rel->r_type[0] & RELOC_STD_BITS_NS32K_TYPE_LITTLE)
	161	>> RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE);
7920ce38	162	return (MY (howto_table) + r_length + 3 * (r_pcrel) + 6 r_ns32k_type);
252b5132 RH	163	}
252b5132 RH	164
dc810e39	165	#define MY_reloc_howto(BFD, REL, IN, EX, PC) \
7920ce38 NC	166	MY (reloc_howto) (BFD, REL, &IN, &EX, &PC)
	167
	168	static void
	169	MY (put_reloc) (bfd *abfd,
	170	int r_extern,
	171	int r_index,
	172	bfd_vma value,
	173	reloc_howto_type *howto,
	174	struct reloc_std_external *reloc)
252b5132 RH	175	{
	176	unsigned int r_length;
	177	int r_pcrel;
	178	int r_ns32k_type;
1725a96e	179
252b5132	180	PUT_WORD (abfd, value, reloc->r_address);
1725a96e NC	181	r_length = howto->size ; /* Size as a power of two. */
1725a96e NC	182	r_pcrel = (int) howto->pc_relative; /* Relative to PC? */
7920ce38	183	r_ns32k_type = (howto - MY (howto_table) )/6;
1725a96e	184
252b5132 RH	185	reloc->r_index[2] = r_index >> 16;
	186	reloc->r_index[1] = r_index >> 8;
	187	reloc->r_index[0] = r_index;
	188	reloc->r_type[0] =
	189	(r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0)
	190	\| (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0)
	191	\| (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)
	192	\| (r_ns32k_type << RELOC_STD_BITS_NS32K_TYPE_SH_LITTLE);
	193	}
	194
	195	#define MY_put_reloc(BFD, EXT, IDX, VAL, HOWTO, RELOC) \
7920ce38	196	MY (put_reloc) (BFD, EXT, IDX, VAL, HOWTO, RELOC)
252b5132 RH	197
	198	#define STAT_FOR_EXEC
	199
	200	#define MY_final_link_relocate _bfd_ns32k_final_link_relocate
7920ce38 NC	201	#define MY_relocate_contents _bfd_ns32k_relocate_contents
	202
	203	static void MY_swap_std_reloc_in (bfd , struct reloc_std_external , arelent , asymbol *, bfd_size_type);
	204	static void MY_swap_std_reloc_out (bfd , arelent , struct reloc_std_external *);
252b5132	205
dc810e39	206	#include "aoutx.h"
252b5132 RH	207
252b5132 RH	208	reloc_howto_type *
7920ce38	209	MY (bfd_reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
252b5132	210	{
7920ce38	211	#define ENTRY(i,j) case i: return &MY (howto_table)[j]
252b5132 RH	212
	213	int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
	214
7920ce38	215	BFD_ASSERT (ext == 0);
252b5132	216	if (code == BFD_RELOC_CTOR)
30d10e9e	217	switch (bfd_arch_bits_per_address (abfd))
252b5132 RH	218	{
	219	case 32:
	220	code = BFD_RELOC_32;
	221	break;
1725a96e NC	222	default:
1725a96e NC	223	break;
252b5132 RH	224	}
	225	switch (code)
	226	{
7920ce38 NC	227	ENTRY (BFD_RELOC_NS32K_IMM_8, 0);
	228	ENTRY (BFD_RELOC_NS32K_IMM_16, 1);
	229	ENTRY (BFD_RELOC_NS32K_IMM_32, 2);
	230	ENTRY (BFD_RELOC_NS32K_IMM_8_PCREL, 3);
	231	ENTRY (BFD_RELOC_NS32K_IMM_16_PCREL, 4);
	232	ENTRY (BFD_RELOC_NS32K_IMM_32_PCREL, 5);
	233	ENTRY (BFD_RELOC_NS32K_DISP_8, 6);
	234	ENTRY (BFD_RELOC_NS32K_DISP_16, 7);
	235	ENTRY (BFD_RELOC_NS32K_DISP_32, 8);
	236	ENTRY (BFD_RELOC_NS32K_DISP_8_PCREL, 9);
	237	ENTRY (BFD_RELOC_NS32K_DISP_16_PCREL, 10);
	238	ENTRY (BFD_RELOC_NS32K_DISP_32_PCREL, 11);
	239	ENTRY (BFD_RELOC_8, 12);
	240	ENTRY (BFD_RELOC_16, 13);
	241	ENTRY (BFD_RELOC_32, 14);
	242	ENTRY (BFD_RELOC_8_PCREL, 15);
	243	ENTRY (BFD_RELOC_16_PCREL, 16);
	244	ENTRY (BFD_RELOC_32_PCREL, 17);
1725a96e	245	default:
7920ce38	246	return NULL;
252b5132 RH	247	}
	248	#undef ENTRY
	249	}
	250
157090f7 AM	251	reloc_howto_type *
	252	MY (bfd_reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED,
	253	const char *r_name)
	254	{
	255	unsigned int i;
	256
	257	for (i = 0;
	258	i < sizeof (MY (howto_table)) / sizeof (MY (howto_table)[0]);
	259	i++)
	260	if (MY (howto_table)[i].name != NULL
	261	&& strcasecmp (MY (howto_table)[i].name, r_name) == 0)
	262	return &MY (howto_table)[i];
	263
	264	return NULL;
	265	}
	266
252b5132	267	static void
7920ce38 NC	268	MY_swap_std_reloc_in (bfd *abfd,
	269	struct reloc_std_external *bytes,
	270	arelent *cache_ptr,
	271	asymbol **symbols,
	272	bfd_size_type symcount ATTRIBUTE_UNUSED)
252b5132 RH	273	{
	274	int r_index;
	275	int r_extern;
	276	int r_pcrel;
	277	struct aoutdata *su = &(abfd->tdata.aout_data->a);
	278
dc810e39	279	cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
252b5132	280
1725a96e	281	/* Now the fun stuff. */
7920ce38	282	cache_ptr->howto = MY_reloc_howto (abfd, bytes, r_index, r_extern, r_pcrel);
252b5132	283
1725a96e	284	MOVE_ADDRESS (0);
252b5132 RH	285	}
	286
	287	static void
7920ce38 NC	288	MY_swap_std_reloc_out (bfd *abfd,
	289	arelent *g,
	290	struct reloc_std_external *natptr)
252b5132 RH	291	{
	292	int r_index;
	293	asymbol sym = (g->sym_ptr_ptr);
	294	int r_extern;
252b5132 RH	295	asection *output_section = sym->section->output_section;
252b5132 RH	296
1725a96e	297	/* Name was clobbered by aout_write_syms to be symbol index. */
252b5132	298
c4dfa77f	299	/* If this relocation is relative to a symbol then set the
252b5132 RH	300	r_index to the symbols index, and the r_extern bit.
	301
	302	Absolute symbols can come in in two ways, either as an offset
	303	from the abs section, or as a symbol which has an abs value.
	304	Check for that here. */
252b5132	305	if (bfd_is_com_section (output_section)
45dfa85a AM	306	\|\| bfd_is_abs_section (output_section)
45dfa85a AM	307	\|\| bfd_is_und_section (output_section))
252b5132	308	{
45dfa85a	309	if (bfd_abs_section_ptr->symbol == sym)
252b5132 RH	310	{
252b5132 RH	311	/* Whoops, looked like an abs symbol, but is really an offset
1725a96e	312	from the abs section. */
252b5132 RH	313	r_index = 0;
	314	r_extern = 0;
	315	}
c4dfa77f	316	else
252b5132	317	{
1725a96e	318	/* Fill in symbol. */
252b5132 RH	319	r_extern = 1;
	320	#undef KEEPIT
	321	#define KEEPIT udata.i
	322	r_index = (*(g->sym_ptr_ptr))->KEEPIT;
c4dfa77f	323	#undef KEEPIT
252b5132 RH	324	}
252b5132 RH	325	}
c4dfa77f	326	else
252b5132	327	{
1725a96e	328	/* Just an ordinary section. */
252b5132	329	r_extern = 0;
c4dfa77f	330	r_index = output_section->target_index;
252b5132 RH	331	}
	332
	333	MY_put_reloc (abfd, r_extern, r_index, g->address, g->howto, natptr);
	334	}
	335
	336	bfd_reloc_status_type
7920ce38 NC	337	_bfd_ns32k_relocate_contents (reloc_howto_type *howto,
	338	bfd *input_bfd,
	339	bfd_vma relocation,
	340	bfd_byte *location)
252b5132	341	{
7920ce38 NC	342	int r_ns32k_type = (howto - MY (howto_table)) / 6;
	343	bfd_vma (get_data) (bfd_byte , int);
	344	void (put_data) (bfd_vma, bfd_byte , int);
252b5132 RH	345
	346	switch (r_ns32k_type)
	347	{
	348	case 0:
	349	get_data = _bfd_ns32k_get_immediate;
	350	put_data = _bfd_ns32k_put_immediate;
	351	break;
	352	case 1:
	353	get_data = _bfd_ns32k_get_displacement;
	354	put_data = _bfd_ns32k_put_displacement;
	355	break;
	356	case 2:
	357	return _bfd_relocate_contents (howto, input_bfd, relocation,
	358	location);
252b5132 RH	359	default:
	360	return bfd_reloc_notsupported;
	361	}
	362	return _bfd_do_ns32k_reloc_contents (howto, input_bfd, relocation,
	363	location, get_data, put_data);
	364	}