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

<<<<<<< 1.3 is dead >>>>>>>
#define BYTES_IN_WORD 4
#define ARCH 32
/* #define ENTRY_CAN_BE_ZERO */
#define N_HEADER_IN_TEXT(x) 1
#define N_SHARED_LIB(x) 0
#define N_TXTADDR(x) \
    (N_MAGIC(x) != ZMAGIC ? (x).a_entry :	/* object file or NMAGIC */\
	    TEXT_START_ADDR + EXEC_BYTES_SIZE	/* no padding */\
    )
#define N_DATADDR(x) (N_TXTADDR(x)+N_TXTSIZE(x))
#define TEXT_START_ADDR 4096
#define PAGE_SIZE 4096
#define SEGMENT_SIZE PAGE_SIZE
#define DEFAULT_ARCH bfd_arch_mips
#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
			    || (mtype) == M_MIPS1 || (mtype) == M_MIPS2)
#define MY_symbol_leading_char '\0'

#define MY(OP) CAT(mipsbsd_,OP)

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h"

#define SET_ARCH_MACH(ABFD, EXEC) \
  MY(set_arch_mach)(ABFD, N_MACHTYPE (EXEC)); \
  MY(choose_reloc_size)(ABFD);
void MY(set_arch_mach) PARAMS ((bfd *abfd, int machtype));
static void MY(choose_reloc_size) PARAMS ((bfd *abfd));

#define MY_write_object_contents MY(write_object_contents)
static boolean MY(write_object_contents) PARAMS ((bfd *abfd));

#define MY_reloc_howto_type_lookup MY(reloc_howto_type_lookup)
#define MY_canonicalize_reloc MY(canonicalize_reloc)

#define MY_backend_data &MY(backend_data)
#define MY_BFD_TARGET

#include "aout-target.h"

/*
 * These really should be common to all BSD systems.
 * Also, to reduce space, should ifdef the individual cases if MINIMIZE=1.
 */
void
MY(set_arch_mach) (abfd, machtype)
     bfd *abfd;
     int machtype;
{
  enum bfd_architecture arch;
  long machine;

  /* Determine the architecture and machine type of the object file. */
  switch (machtype) {

  case M_68010:
  case M_HP200:
    arch = bfd_arch_m68k;
    machine = 68010;
    break;

  case M_68020:
  case M_HP300:
    arch = bfd_arch_m68k;
    machine = 68020;
    break;

  case M_SPARC:
    arch = bfd_arch_sparc;
    machine = 0;
    break;

  case M_386:
    arch = bfd_arch_i386;
    machine = 0;
    break;

  case M_29K:
    arch = bfd_arch_a29k;
    machine = 0;
    break;

  case M_HPUX:
    arch = bfd_arch_m68k;
    machine = 0;
    break;

  case M_MIPS1:
    arch = bfd_arch_mips;
    machine = 3000;
    break;

  case M_MIPS2:
    arch = bfd_arch_mips;
    machine = 4000;
    break;

  default:
    arch = bfd_arch_obscure;
    machine = 0;
    break;
  }
  bfd_set_arch_mach(abfd, arch, machine);  
}

/* Determine the size of a relocation entry, based on the architecture */
static void
MY(choose_reloc_size) (abfd)
     bfd *abfd;
{
  switch (bfd_get_arch(abfd)) {
  case bfd_arch_sparc:
  case bfd_arch_a29k:
  case bfd_arch_mips:
    obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
    break;
  default:
    obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
    break;
  }
}

/* Write an object file in BSD a.out format.
  Section contents have already been written.  We write the
  file header, symbols, and relocation.  */

static boolean
MY(write_object_contents) (abfd)
     bfd *abfd;
{
  struct external_exec exec_bytes;
  struct internal_exec *execp = exec_hdr (abfd);

  /* Magic number, maestro, please!  */
  switch (bfd_get_arch(abfd)) {
  case bfd_arch_m68k:
    switch (bfd_get_mach(abfd)) {
    case 68010:
      N_SET_MACHTYPE(*execp, M_68010);
      break;
    default:
    case 68020:
      N_SET_MACHTYPE(*execp, M_68020);
      break;
    }
    break;
  case bfd_arch_sparc:
    N_SET_MACHTYPE(*execp, M_SPARC);
    break;
  case bfd_arch_i386:
    N_SET_MACHTYPE(*execp, M_386);
    break;
  case bfd_arch_a29k:
    N_SET_MACHTYPE(*execp, M_29K);
    break;
  case bfd_arch_mips:
    switch (bfd_get_mach(abfd)) {
    case 4000:
    case 6000:
      N_SET_MACHTYPE(*execp, M_MIPS2);
      break;
    default:
      N_SET_MACHTYPE(*execp, M_MIPS1);
      break;
    }
    break;
  default:
    N_SET_MACHTYPE(*execp, M_UNKNOWN);
  }

  MY(choose_reloc_size)(abfd);

  WRITE_HEADERS(abfd, execp);

  return true;
}

/*
 * MIPS relocation types.
 */
#define MIPS_RELOC_32		0
#define MIPS_RELOC_JMP		1
#define MIPS_RELOC_WDISP16	2
#define MIPS_RELOC_HI16		3
#define MIPS_RELOC_HI16_S	4
#define MIPS_RELOC_LO16		5

/*
 * This is only called when performing a BFD_RELOC_HI16_S relocation.
 * We need to see if bit 15 is set in the result. If it is, we add
 * 0x10000 and continue normally. This will compensate for the sign extension
 * when the low bits are added at run time.
 */
bfd_reloc_status_type
mips_fix_hi16_s (abfd,reloc_entry,symbol,data,input_section,output_bfd)
     bfd *abfd;
     arelent *reloc_entry;
     struct symbol_cache_entry *symbol;
     PTR data;
     asection *input_section;
     bfd *output_bfd;
{
  bfd_vma relocation;
 
  /* If this is a partial relocation, just continue. */
  if (output_bfd != (bfd *)NULL)
    return bfd_reloc_continue;

  /* 
   * Work out which section the relocation is targetted at and the
   * initial relocation command value.
   */
  if (symbol->section == &bfd_com_section)
    relocation = 0;
  else
    relocation = symbol->value;

  relocation += symbol->section->output_section->vma;
  relocation += symbol->section->output_offset;
  relocation += reloc_entry->addend;

  if (relocation & 0x8000)
    reloc_entry->addend += 0x10000;

  return bfd_reloc_continue;
}

static reloc_howto_type mips_howto_table_ext[] = {
  MIPS_RELOC_32,      0, 2, 32, false, 0, true,  true, 0,
	"32",       false, 0, 0xffffffff, false,
  MIPS_RELOC_JMP,     2, 2, 26, false, 0, false, true, 0,
	"MIPS_JMP", false, 0, 0x03ffffff, false,
  MIPS_RELOC_WDISP16, 2, 1, 16, true,  0, false, true, 0,
	"WDISP16",  false, 0, 0x0000ffff, false,
  MIPS_RELOC_HI16,   16, 1, 16, false, 0, false, true, 0,
	"HI16",     false, 0, 0x0000ffff, false,
  MIPS_RELOC_HI16_S, 16, 1, 16, false, 0, false, true, mips_fix_hi16_s,
	"HI16_S",   false, 0, 0x0000ffff, false,
  MIPS_RELOC_LO16,    0, 1, 16, false, 0, false, true, 0,
	"LO16",     false, 0, 0x0000ffff, false,
};

static reloc_howto_type *
MY(reloc_howto_type_lookup) (abfd, code)
     bfd *abfd;
     bfd_reloc_code_real_type code;
{
  extern reloc_howto_type NAME(aout,ext_howto_table)[];

  switch (bfd_get_arch (abfd))
    {
    case bfd_arch_sparc:
      switch (code)
	{
	default:
	  return 0;
#define IDX(i,j)	case i: return &NAME(aout,ext_howto_table)[j]
	IDX (BFD_RELOC_CTOR, 2);
	IDX (BFD_RELOC_32, 2);
	IDX (BFD_RELOC_HI22, 8);
	IDX (BFD_RELOC_LO10, 11);
	IDX (BFD_RELOC_32_PCREL_S2, 6);
	}
    case bfd_arch_mips:
      switch (code)
	{
	case BFD_RELOC_32:
	  return (&mips_howto_table_ext[MIPS_RELOC_32]);
	case BFD_RELOC_MIPS_JMP:
	  return (&mips_howto_table_ext[MIPS_RELOC_JMP]);
	case BFD_RELOC_16_PCREL_S2:
	  return (&mips_howto_table_ext[MIPS_RELOC_WDISP16]);
	case BFD_RELOC_HI16:
	  return (&mips_howto_table_ext[MIPS_RELOC_HI16]);
	case BFD_RELOC_HI16_S:
	  return (&mips_howto_table_ext[MIPS_RELOC_HI16_S]);
	case BFD_RELOC_LO16:
	  return (&mips_howto_table_ext[MIPS_RELOC_LO16]);
	default:
	  return 0;
	}
    default:
      return 0;
    }
}

/*
 * This is just like the standard aoutx.h version but we need to do our
 * own mapping of external reloc type values to howto entries.
 */
unsigned int
MY(canonicalize_reloc)(abfd, section, relptr, symbols)
      bfd *abfd;
      sec_ptr section;
      arelent **relptr;
      asymbol **symbols;
{
  arelent *tblptr = section->relocation;
  unsigned int count, c;
  extern reloc_howto_type NAME(aout,ext_howto_table)[];

  /* If we have already read in the relocation table, return the values. */
  if (section->flags & SEC_CONSTRUCTOR) {
    arelent_chain *chain = section->constructor_chain;

    for (count = 0; count < section->reloc_count; count++) {
      *relptr++ = &chain->relent;
      chain = chain->next;
    }
    *relptr = 0;
    return section->reloc_count;
  }
  if (tblptr && section->reloc_count) {
    for (count = 0; count++ < section->reloc_count;) 
      *relptr++ = tblptr++;
    *relptr = 0;
    return section->reloc_count;
  }

  if (!NAME(aout,slurp_reloc_table)(abfd, section, symbols))
    return 0;
  tblptr = section->relocation;
  if (!tblptr)
    return 0;

  /* fix up howto entries */
  for (count = 0; count++ < section->reloc_count;) 
    {
      c = tblptr->howto - NAME(aout,ext_howto_table);
      tblptr->howto = &mips_howto_table_ext[c];

      *relptr++ = tblptr++;
    }
  *relptr = 0;
  return section->reloc_count;
}

static CONST struct aout_backend_data MY(backend_data) = {
  0,				/* zmagic contiguous */
  1,				/* text incl header */
  PAGE_SIZE,			/* text vma */
  MY_set_sizes,
  0,				/* text size includes exec header */
};

bfd_target aout_mips_little_vec =
{
  "aout-mips-little",		/* name */
  bfd_target_aout_flavour,
  false,			/* target byte order (little) */
  false,			/* target headers byte order (little) */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
  MY_symbol_leading_char,
  ' ',				/* ar_pad_char */
  15,				/* ar_max_namelen */
  1,				/* minimum alignment */
  _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
  _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
    {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
       bfd_generic_archive_p, MY_core_file_p},
    {bfd_false, MY_mkobject,	/* bfd_set_format */
       _bfd_generic_mkarchive, bfd_false},
    {bfd_false, MY_write_object_contents, /* bfd_write_contents */
       _bfd_write_archive_contents, bfd_false},

  MY_core_file_failing_command,
  MY_core_file_failing_signal,
  MY_core_file_matches_executable_p,
  MY_slurp_armap,
  MY_slurp_extended_name_table,
  MY_truncate_arname,
  MY_write_armap,
  MY_close_and_cleanup,
  MY_set_section_contents,
  MY_get_section_contents,
  MY_new_section_hook,
  MY_get_symtab_upper_bound,
  MY_get_symtab,
  MY_get_reloc_upper_bound,
  MY_canonicalize_reloc,
  MY_make_empty_symbol,
  MY_print_symbol,
  MY_get_lineno,
  MY_set_arch_mach,
  MY_openr_next_archived_file,
  MY_find_nearest_line,
  MY_generic_stat_arch_elt,
  MY_sizeof_headers,
  MY_bfd_debug_info_start,
  MY_bfd_debug_info_end,
  MY_bfd_debug_info_accumulate,
  bfd_generic_get_relocated_section_contents,
  bfd_generic_relax_section,
  bfd_generic_seclet_link,
  MY_reloc_howto_type_lookup,
  MY_make_debug_symbol,
  (PTR) MY_backend_data,
};

bfd_target aout_mips_big_vec =
{
  "aout-mips-big",		/* name */
  bfd_target_aout_flavour,
  true,				/* target byte order (big) */
  true,				/* target headers byte order (big) */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
  MY_symbol_leading_char,
  ' ',				/* ar_pad_char */
  15,				/* ar_max_namelen */
  1,				/* minimum alignment */
  _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
  _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
    {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
       bfd_generic_archive_p, MY_core_file_p},
    {bfd_false, MY_mkobject,	/* bfd_set_format */
       _bfd_generic_mkarchive, bfd_false},
    {bfd_false, MY_write_object_contents, /* bfd_write_contents */
       _bfd_write_archive_contents, bfd_false},

  MY_core_file_failing_command,
  MY_core_file_failing_signal,
  MY_core_file_matches_executable_p,
  MY_slurp_armap,
  MY_slurp_extended_name_table,
  MY_truncate_arname,
  MY_write_armap,
  MY_close_and_cleanup,
  MY_set_section_contents,
  MY_get_section_contents,
  MY_new_section_hook,
  MY_get_symtab_upper_bound,
  MY_get_symtab,
  MY_get_reloc_upper_bound,
  MY_canonicalize_reloc,
  MY_make_empty_symbol,
  MY_print_symbol,
  MY_get_lineno,
  MY_set_arch_mach,
  MY_openr_next_archived_file,
  MY_find_nearest_line,
  MY_generic_stat_arch_elt,
  MY_sizeof_headers,
  MY_bfd_debug_info_start,
  MY_bfd_debug_info_end,
  MY_bfd_debug_info_accumulate,
  bfd_generic_get_relocated_section_contents,
  bfd_generic_relax_section,
  bfd_generic_seclet_link,
  MY_reloc_howto_type_lookup,
  MY_make_debug_symbol,
  (PTR) MY_backend_data,
};
Commit	Line	Data
796dc40d PB	1	<<<<<<< 1.3 is dead >>>>>>>
	2	#define BYTES_IN_WORD 4
	3	#define ARCH 32
	4	/* #define ENTRY_CAN_BE_ZERO */
	5	#define N_HEADER_IN_TEXT(x) 1
	6	#define N_SHARED_LIB(x) 0
	7	#define N_TXTADDR(x) \
	8	(N_MAGIC(x) != ZMAGIC ? (x).a_entry : /* object file or NMAGIC */\
	9	TEXT_START_ADDR + EXEC_BYTES_SIZE /* no padding */\
	10	)
	11	#define N_DATADDR(x) (N_TXTADDR(x)+N_TXTSIZE(x))
	12	#define TEXT_START_ADDR 4096
	13	#define PAGE_SIZE 4096
	14	#define SEGMENT_SIZE PAGE_SIZE
	15	#define DEFAULT_ARCH bfd_arch_mips
	16	#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
	17	\|\| (mtype) == M_MIPS1 \|\| (mtype) == M_MIPS2)
	18	#define MY_symbol_leading_char '\0'
	19
	20	#define MY(OP) CAT(mipsbsd_,OP)
	21
	22	#include "bfd.h"
	23	#include "sysdep.h"
	24	#include "libbfd.h"
	25	#include "libaout.h"
	26
	27	#define SET_ARCH_MACH(ABFD, EXEC) \
	28	MY(set_arch_mach)(ABFD, N_MACHTYPE (EXEC)); \
	29	MY(choose_reloc_size)(ABFD);
	30	void MY(set_arch_mach) PARAMS ((bfd *abfd, int machtype));
	31	static void MY(choose_reloc_size) PARAMS ((bfd *abfd));
	32
	33	#define MY_write_object_contents MY(write_object_contents)
	34	static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
	35
	36	#define MY_reloc_howto_type_lookup MY(reloc_howto_type_lookup)
	37	#define MY_canonicalize_reloc MY(canonicalize_reloc)
	38
	39	#define MY_backend_data &MY(backend_data)
	40	#define MY_BFD_TARGET
	41
	42	#include "aout-target.h"
	43
	44	/*
	45	* These really should be common to all BSD systems.
	46	* Also, to reduce space, should ifdef the individual cases if MINIMIZE=1.
	47	*/
	48	void
	49	MY(set_arch_mach) (abfd, machtype)
	50	bfd *abfd;
	51	int machtype;
	52	{
	53	enum bfd_architecture arch;
	54	long machine;
	55
	56	/* Determine the architecture and machine type of the object file. */
	57	switch (machtype) {
	58
	59	case M_68010:
	60	case M_HP200:
	61	arch = bfd_arch_m68k;
	62	machine = 68010;
	63	break;
	64
65	case M_68020:
66	case M_HP300:
67	arch = bfd_arch_m68k;
68	machine = 68020;
69	break;
70
71	case M_SPARC:
72	arch = bfd_arch_sparc;
73	machine = 0;
74	break;
75
76	case M_386:
77	arch = bfd_arch_i386;
78	machine = 0;
79	break;
80
81	case M_29K:
82	arch = bfd_arch_a29k;
83	machine = 0;
84	break;
85
86	case M_HPUX:
87	arch = bfd_arch_m68k;
88	machine = 0;
89	break;
90
91	case M_MIPS1:
92	arch = bfd_arch_mips;
93	machine = 3000;
94	break;
95
96	case M_MIPS2:
97	arch = bfd_arch_mips;
98	machine = 4000;
99	break;
100
101	default:
102	arch = bfd_arch_obscure;
103	machine = 0;
104	break;
105	}
106	bfd_set_arch_mach(abfd, arch, machine);
107	}
108
109	/* Determine the size of a relocation entry, based on the architecture */
110	static void
111	MY(choose_reloc_size) (abfd)
112	bfd *abfd;
113	{
114	switch (bfd_get_arch(abfd)) {
115	case bfd_arch_sparc:
116	case bfd_arch_a29k:
117	case bfd_arch_mips:
118	obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
119	break;
120	default:
121	obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
122	break;
123	}
124	}
125
126	/* Write an object file in BSD a.out format.
127	Section contents have already been written. We write the
128	file header, symbols, and relocation. */
129
130	static boolean
131	MY(write_object_contents) (abfd)
132	bfd *abfd;
133	{
134	struct external_exec exec_bytes;
135	struct internal_exec *execp = exec_hdr (abfd);
136
137	/* Magic number, maestro, please! */
138	switch (bfd_get_arch(abfd)) {
139	case bfd_arch_m68k:
140	switch (bfd_get_mach(abfd)) {
141	case 68010:
142	N_SET_MACHTYPE(*execp, M_68010);
143	break;
144	default:
145	case 68020:
146	N_SET_MACHTYPE(*execp, M_68020);
147	break;
148	}
149	break;
150	case bfd_arch_sparc:
151	N_SET_MACHTYPE(*execp, M_SPARC);
152	break;
153	case bfd_arch_i386:
154	N_SET_MACHTYPE(*execp, M_386);
155	break;
156	case bfd_arch_a29k:
157	N_SET_MACHTYPE(*execp, M_29K);
158	break;
159	case bfd_arch_mips:
160	switch (bfd_get_mach(abfd)) {
161	case 4000:
162	case 6000:
163	N_SET_MACHTYPE(*execp, M_MIPS2);
164	break;
165	default:
166	N_SET_MACHTYPE(*execp, M_MIPS1);
167	break;
168	}
169	break;
170	default:
171	N_SET_MACHTYPE(*execp, M_UNKNOWN);
172	}
173
174	MY(choose_reloc_size)(abfd);
175
176	WRITE_HEADERS(abfd, execp);
177
178	return true;
179	}
180
181	/*
182	* MIPS relocation types.
183	*/
184	#define MIPS_RELOC_32 0
185	#define MIPS_RELOC_JMP 1
186	#define MIPS_RELOC_WDISP16 2
187	#define MIPS_RELOC_HI16 3
188	#define MIPS_RELOC_HI16_S 4
189	#define MIPS_RELOC_LO16 5
190
191	/*
192	* This is only called when performing a BFD_RELOC_HI16_S relocation.
193	* We need to see if bit 15 is set in the result. If it is, we add
194	* 0x10000 and continue normally. This will compensate for the sign extension
195	* when the low bits are added at run time.
196	*/
197	bfd_reloc_status_type
198	mips_fix_hi16_s (abfd,reloc_entry,symbol,data,input_section,output_bfd)
199	bfd *abfd;
200	arelent *reloc_entry;
201	struct symbol_cache_entry *symbol;
202	PTR data;
203	asection *input_section;
204	bfd *output_bfd;
205	{
206	bfd_vma relocation;
207
208	/* If this is a partial relocation, just continue. */
209	if (output_bfd != (bfd *)NULL)
210	return bfd_reloc_continue;
211
212	/*
213	* Work out which section the relocation is targetted at and the
214	* initial relocation command value.
215	*/
216	if (symbol->section == &bfd_com_section)
217	relocation = 0;
218	else
219	relocation = symbol->value;
220
221	relocation += symbol->section->output_section->vma;
222	relocation += symbol->section->output_offset;
223	relocation += reloc_entry->addend;
224
225	if (relocation & 0x8000)
226	reloc_entry->addend += 0x10000;
227
228	return bfd_reloc_continue;
229	}
230
231	static reloc_howto_type mips_howto_table_ext[] = {
232	MIPS_RELOC_32, 0, 2, 32, false, 0, true, true, 0,
233	"32", false, 0, 0xffffffff, false,
234	MIPS_RELOC_JMP, 2, 2, 26, false, 0, false, true, 0,
235	"MIPS_JMP", false, 0, 0x03ffffff, false,
236	MIPS_RELOC_WDISP16, 2, 1, 16, true, 0, false, true, 0,
237	"WDISP16", false, 0, 0x0000ffff, false,
238	MIPS_RELOC_HI16, 16, 1, 16, false, 0, false, true, 0,
239	"HI16", false, 0, 0x0000ffff, false,
240	MIPS_RELOC_HI16_S, 16, 1, 16, false, 0, false, true, mips_fix_hi16_s,
241	"HI16_S", false, 0, 0x0000ffff, false,
242	MIPS_RELOC_LO16, 0, 1, 16, false, 0, false, true, 0,
243	"LO16", false, 0, 0x0000ffff, false,
244	};
245
246	static reloc_howto_type *
247	MY(reloc_howto_type_lookup) (abfd, code)
248	bfd *abfd;
249	bfd_reloc_code_real_type code;
250	{
251	extern reloc_howto_type NAME(aout,ext_howto_table)[];
252
253	switch (bfd_get_arch (abfd))
254	{
255	case bfd_arch_sparc:
256	switch (code)
257	{
258	default:
259	return 0;
260	#define IDX(i,j) case i: return &NAME(aout,ext_howto_table)[j]
261	IDX (BFD_RELOC_CTOR, 2);
262	IDX (BFD_RELOC_32, 2);
263	IDX (BFD_RELOC_HI22, 8);
264	IDX (BFD_RELOC_LO10, 11);
265	IDX (BFD_RELOC_32_PCREL_S2, 6);
266	}
267	case bfd_arch_mips:
268	switch (code)
269	{
270	case BFD_RELOC_32:
271	return (&mips_howto_table_ext[MIPS_RELOC_32]);
272	case BFD_RELOC_MIPS_JMP:
273	return (&mips_howto_table_ext[MIPS_RELOC_JMP]);
274	case BFD_RELOC_16_PCREL_S2:
275	return (&mips_howto_table_ext[MIPS_RELOC_WDISP16]);
276	case BFD_RELOC_HI16:
277	return (&mips_howto_table_ext[MIPS_RELOC_HI16]);
278	case BFD_RELOC_HI16_S:
279	return (&mips_howto_table_ext[MIPS_RELOC_HI16_S]);
280	case BFD_RELOC_LO16:
281	return (&mips_howto_table_ext[MIPS_RELOC_LO16]);
282	default:
283	return 0;
284	}
285	default:
286	return 0;
287	}
288	}
289
290	/*
291	* This is just like the standard aoutx.h version but we need to do our
292	* own mapping of external reloc type values to howto entries.
293	*/
294	unsigned int
295	MY(canonicalize_reloc)(abfd, section, relptr, symbols)
296	bfd *abfd;
297	sec_ptr section;
298	arelent **relptr;
299	asymbol **symbols;
300	{
301	arelent *tblptr = section->relocation;
302	unsigned int count, c;
303	extern reloc_howto_type NAME(aout,ext_howto_table)[];
304
305	/* If we have already read in the relocation table, return the values. */
306	if (section->flags & SEC_CONSTRUCTOR) {
307	arelent_chain *chain = section->constructor_chain;
308
309	for (count = 0; count < section->reloc_count; count++) {
310	*relptr++ = &chain->relent;
311	chain = chain->next;
312	}
313	*relptr = 0;
314	return section->reloc_count;
315	}
316	if (tblptr && section->reloc_count) {
317	for (count = 0; count++ < section->reloc_count;)
318	*relptr++ = tblptr++;
319	*relptr = 0;
320	return section->reloc_count;
321	}
322
323	if (!NAME(aout,slurp_reloc_table)(abfd, section, symbols))
324	return 0;
325	tblptr = section->relocation;
326	if (!tblptr)
327	return 0;
328
329	/* fix up howto entries */
330	for (count = 0; count++ < section->reloc_count;)
331	{
332	c = tblptr->howto - NAME(aout,ext_howto_table);
333	tblptr->howto = &mips_howto_table_ext[c];
334
335	*relptr++ = tblptr++;
336	}
337	*relptr = 0;
338	return section->reloc_count;
339	}
340
341	static CONST struct aout_backend_data MY(backend_data) = {
342	0, /* zmagic contiguous */
343	1, /* text incl header */
344	PAGE_SIZE, /* text vma */
345	MY_set_sizes,
346	0, /* text size includes exec header */
347	};
348
349	bfd_target aout_mips_little_vec =
350	{
351	"aout-mips-little", /* name */
352	bfd_target_aout_flavour,
353	false, /* target byte order (little) */
354	false, /* target headers byte order (little) */
355	(HAS_RELOC \| EXEC_P \| /* object flags */
356	HAS_LINENO \| HAS_DEBUG \|
357	HAS_SYMS \| HAS_LOCALS \| DYNAMIC \| WP_TEXT \| D_PAGED),
358	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
359	MY_symbol_leading_char,
360	' ', /* ar_pad_char */
361	15, /* ar_max_namelen */
362	1, /* minimum alignment */
363	_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
364	_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
365	{_bfd_dummy_target, MY_object_p, /* bfd_check_format */
366	bfd_generic_archive_p, MY_core_file_p},
367	{bfd_false, MY_mkobject, /* bfd_set_format */
368	_bfd_generic_mkarchive, bfd_false},
369	{bfd_false, MY_write_object_contents, /* bfd_write_contents */
370	_bfd_write_archive_contents, bfd_false},
371
372	MY_core_file_failing_command,
373	MY_core_file_failing_signal,
374	MY_core_file_matches_executable_p,
375	MY_slurp_armap,
376	MY_slurp_extended_name_table,
377	MY_truncate_arname,
378	MY_write_armap,
379	MY_close_and_cleanup,
380	MY_set_section_contents,
381	MY_get_section_contents,
382	MY_new_section_hook,
383	MY_get_symtab_upper_bound,
384	MY_get_symtab,
385	MY_get_reloc_upper_bound,
386	MY_canonicalize_reloc,
387	MY_make_empty_symbol,
388	MY_print_symbol,
389	MY_get_lineno,
390	MY_set_arch_mach,
391	MY_openr_next_archived_file,
392	MY_find_nearest_line,
393	MY_generic_stat_arch_elt,
394	MY_sizeof_headers,
395	MY_bfd_debug_info_start,
396	MY_bfd_debug_info_end,
397	MY_bfd_debug_info_accumulate,
398	bfd_generic_get_relocated_section_contents,
399	bfd_generic_relax_section,
400	bfd_generic_seclet_link,
401	MY_reloc_howto_type_lookup,
402	MY_make_debug_symbol,
403	(PTR) MY_backend_data,
404	};
405
406	bfd_target aout_mips_big_vec =
407	{
408	"aout-mips-big", /* name */
409	bfd_target_aout_flavour,
410	true, /* target byte order (big) */
411	true, /* target headers byte order (big) */
412	(HAS_RELOC \| EXEC_P \| /* object flags */
413	HAS_LINENO \| HAS_DEBUG \|
414	HAS_SYMS \| HAS_LOCALS \| DYNAMIC \| WP_TEXT \| D_PAGED),
415	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
416	MY_symbol_leading_char,
417	' ', /* ar_pad_char */
418	15, /* ar_max_namelen */
419	1, /* minimum alignment */
420	_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
421	_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
422	{_bfd_dummy_target, MY_object_p, /* bfd_check_format */
423	bfd_generic_archive_p, MY_core_file_p},
424	{bfd_false, MY_mkobject, /* bfd_set_format */
425	_bfd_generic_mkarchive, bfd_false},
426	{bfd_false, MY_write_object_contents, /* bfd_write_contents */
427	_bfd_write_archive_contents, bfd_false},
428
429	MY_core_file_failing_command,
430	MY_core_file_failing_signal,
431	MY_core_file_matches_executable_p,
432	MY_slurp_armap,
433	MY_slurp_extended_name_table,
434	MY_truncate_arname,
435	MY_write_armap,
436	MY_close_and_cleanup,
437	MY_set_section_contents,
438	MY_get_section_contents,
439	MY_new_section_hook,
440	MY_get_symtab_upper_bound,
441	MY_get_symtab,
442	MY_get_reloc_upper_bound,
443	MY_canonicalize_reloc,
444	MY_make_empty_symbol,
445	MY_print_symbol,
446	MY_get_lineno,
447	MY_set_arch_mach,
448	MY_openr_next_archived_file,
449	MY_find_nearest_line,
450	MY_generic_stat_arch_elt,
451	MY_sizeof_headers,
452	MY_bfd_debug_info_start,
453	MY_bfd_debug_info_end,
454	MY_bfd_debug_info_accumulate,
455	bfd_generic_get_relocated_section_contents,
456	bfd_generic_relax_section,
457	bfd_generic_seclet_link,
458	MY_reloc_howto_type_lookup,
459	MY_make_debug_symbol,
460	(PTR) MY_backend_data,
461	};