[deliverable/binutils-gdb.git] / bfd / elf32-target.h

/* Target definitions for 32-bit ELF
   Copyright 1993 Free Software Foundation, Inc.

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.  */

/* This structure contains everything that BFD knows about a target.
   It includes things like its byte order, name, what routines to call
   to do various operations, etc.  Every BFD points to a target structure
   with its "xvec" member.

   There are two such structures here:  one for big-endian machines and
   one for little-endian machines.   */

/* Archives are generic or unimplemented.  */
#ifndef bfd_elf32_slurp_armap
#define bfd_elf32_slurp_armap		bfd_slurp_coff_armap
#endif
#define bfd_elf32_slurp_extended_name_table	_bfd_slurp_extended_name_table
#define bfd_elf32_truncate_arname		bfd_dont_truncate_arname
#define bfd_elf32_openr_next_archived_file	bfd_generic_openr_next_archived_file
#define bfd_elf32_generic_stat_arch_elt	bfd_generic_stat_arch_elt
#ifndef bfd_elf32_write_armap
#define	bfd_elf32_write_armap		coff_write_armap
#endif

/* Ordinary section reading and writing */
#define bfd_elf32_get_section_contents	bfd_generic_get_section_contents
#define	bfd_elf32_close_and_cleanup		bfd_generic_close_and_cleanup

#define bfd_elf32_bfd_debug_info_start	bfd_void
#define bfd_elf32_bfd_debug_info_end	bfd_void
#define bfd_elf32_bfd_debug_info_accumulate	(PROTO(void,(*),(bfd*, struct sec *))) bfd_void
#define bfd_elf32_bfd_get_relocated_section_contents \
 bfd_generic_get_relocated_section_contents
#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
#define bfd_elf32_bfd_make_debug_symbol \
  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
#ifndef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
  _bfd_generic_link_hash_table_create
#endif
#ifndef bfd_elf32_bfd_link_add_symbols
#define bfd_elf32_bfd_link_add_symbols	_bfd_generic_link_add_symbols
#endif
#ifndef bfd_elf32_bfd_final_link
#define bfd_elf32_bfd_final_link	_bfd_generic_final_link
#endif

#ifndef elf_info_to_howto_rel
#define elf_info_to_howto_rel 0
#endif

#ifndef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 1
#endif

#ifndef elf_backend_sym_is_global
#define elf_backend_sym_is_global	0
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p		0
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing	0
#endif
#ifndef elf_backend_symbol_table_processing
#define elf_backend_symbol_table_processing	0
#endif
#ifndef elf_backend_section_processing
#define elf_backend_section_processing	0
#endif
#ifndef elf_backend_section_from_shdr
#define elf_backend_section_from_shdr	0
#endif
#ifndef elf_backend_fake_sections
#define elf_backend_fake_sections	0
#endif
#ifndef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section	0
#endif
#ifndef elf_backend_final_write_processing
#define elf_backend_final_write_processing	0
#endif
#ifndef elf_backend_ecoff_debug_swap
#define elf_backend_ecoff_debug_swap	0
#endif

static CONST struct elf_backend_data elf32_bed =
{
#ifdef USE_REL
  0,				/* use_rela_p */
#else
  1,				/* use_rela_p */
#endif
  0,				/* elf_64_p */
  ELF_ARCH,			/* arch */
  ELF_MACHINE_CODE,		/* elf_machine_code */
  ELF_MAXPAGESIZE,		/* maxpagesize */
  elf_info_to_howto,
  elf_info_to_howto_rel,
  elf_backend_sym_is_global,
  elf_backend_object_p,
  elf_backend_symbol_processing,
  elf_backend_symbol_table_processing,
  elf_backend_section_processing,
  elf_backend_section_from_shdr,
  elf_backend_fake_sections,
  elf_backend_section_from_bfd_section,
  elf_backend_final_write_processing,
  elf_backend_ecoff_debug_swap
};

#ifdef TARGET_BIG_SYM
bfd_target TARGET_BIG_SYM =
{
  /* name: identify kind of target */
  TARGET_BIG_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  true,

  /* header_byteorder_big_p: header is also big endian */
  true,

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  15,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf32_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf32_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf32_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

  /* Initialize a jump table with the standard macro.  All names start with
     "elf" */
  JUMP_TABLE(bfd_elf32),

  /* backend_data: */
  (PTR) &elf32_bed,
};
#endif

#ifdef TARGET_LITTLE_SYM
bfd_target TARGET_LITTLE_SYM =
{
  /* name: identify kind of target */
  TARGET_LITTLE_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  false,		/* Nope -- this one's little endian */

  /* header_byteorder_big_p: header is also big endian */
  false,		/* Nope -- this one's little endian */

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  15,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf32_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf32_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf32_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

  /* Initialize a jump table with the standard macro.  All names start with
     "elf" */
  JUMP_TABLE(bfd_elf32),

  /* backend_data: */
  (PTR) &elf32_bed,
};
#endif
Commit	Line	Data
81187b54 KR	1	/* Target definitions for 32-bit ELF
	2	Copyright 1993 Free Software Foundation, Inc.
	3
	4	This file is part of BFD, the Binary File Descriptor library.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	/* This structure contains everything that BFD knows about a target.
	21	It includes things like its byte order, name, what routines to call
	22	to do various operations, etc. Every BFD points to a target structure
	23	with its "xvec" member.
	24
	25	There are two such structures here: one for big-endian machines and
	26	one for little-endian machines. */
	27
	28	/* Archives are generic or unimplemented. */
9942e684 KR	29	#ifndef bfd_elf32_slurp_armap
9942e684 KR	30	#define bfd_elf32_slurp_armap bfd_slurp_coff_armap
ae06054e	31	#endif
9942e684 KR	32	#define bfd_elf32_slurp_extended_name_table _bfd_slurp_extended_name_table
	33	#define bfd_elf32_truncate_arname bfd_dont_truncate_arname
	34	#define bfd_elf32_openr_next_archived_file bfd_generic_openr_next_archived_file
	35	#define bfd_elf32_generic_stat_arch_elt bfd_generic_stat_arch_elt
	36	#ifndef bfd_elf32_write_armap
	37	#define bfd_elf32_write_armap coff_write_armap
ae06054e	38	#endif
81187b54 KR	39
81187b54 KR	40	/* Ordinary section reading and writing */
9942e684 KR	41	#define bfd_elf32_get_section_contents bfd_generic_get_section_contents
	42	#define bfd_elf32_close_and_cleanup bfd_generic_close_and_cleanup
	43
	44	#define bfd_elf32_bfd_debug_info_start bfd_void
	45	#define bfd_elf32_bfd_debug_info_end bfd_void
	46	#define bfd_elf32_bfd_debug_info_accumulate (PROTO(void,(),(bfd, struct sec *))) bfd_void
	47	#define bfd_elf32_bfd_get_relocated_section_contents \
81187b54	48	bfd_generic_get_relocated_section_contents
9942e684	49	#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
9942e684	50	#define bfd_elf32_bfd_make_debug_symbol \
81187b54	51	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
4c3721d5 ILT	52	#ifndef bfd_elf32_bfd_link_hash_table_create
	53	#define bfd_elf32_bfd_link_hash_table_create \
	54	_bfd_generic_link_hash_table_create
	55	#endif
	56	#ifndef bfd_elf32_bfd_link_add_symbols
	57	#define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
	58	#endif
	59	#ifndef bfd_elf32_bfd_final_link
	60	#define bfd_elf32_bfd_final_link _bfd_generic_final_link
	61	#endif
81187b54	62
b3024965 KR	63	#ifndef elf_info_to_howto_rel
	64	#define elf_info_to_howto_rel 0
	65	#endif
	66
	67	#ifndef ELF_MAXPAGESIZE
	68	#define ELF_MAXPAGESIZE 1
	69	#endif
	70
643e9fc7 ILT	71	#ifndef elf_backend_sym_is_global
	72	#define elf_backend_sym_is_global 0
	73	#endif
a5ccdad1	74	#ifndef elf_backend_object_p
643e9fc7	75	#define elf_backend_object_p 0
a5ccdad1	76	#endif
e2a422b8	77	#ifndef elf_backend_symbol_processing
643e9fc7	78	#define elf_backend_symbol_processing 0
e2a422b8 KR	79	#endif
e2a422b8 KR	80	#ifndef elf_backend_symbol_table_processing
643e9fc7	81	#define elf_backend_symbol_table_processing 0
e2a422b8 KR	82	#endif
e2a422b8 KR	83	#ifndef elf_backend_section_processing
643e9fc7	84	#define elf_backend_section_processing 0
e2a422b8 KR	85	#endif
e2a422b8 KR	86	#ifndef elf_backend_section_from_shdr
643e9fc7	87	#define elf_backend_section_from_shdr 0
e2a422b8 KR	88	#endif
e2a422b8 KR	89	#ifndef elf_backend_fake_sections
643e9fc7	90	#define elf_backend_fake_sections 0
e2a422b8 KR	91	#endif
e2a422b8 KR	92	#ifndef elf_backend_section_from_bfd_section
643e9fc7 ILT	93	#define elf_backend_section_from_bfd_section 0
	94	#endif
	95	#ifndef elf_backend_final_write_processing
	96	#define elf_backend_final_write_processing 0
e2a422b8	97	#endif
95469b02	98	#ifndef elf_backend_ecoff_debug_swap
643e9fc7	99	#define elf_backend_ecoff_debug_swap 0
95469b02	100	#endif
e2a422b8	101
268f94ac	102	static CONST struct elf_backend_data elf32_bed =
81187b54	103	{
7050286d KR	104	#ifdef USE_REL
	105	0, /* use_rela_p */
	106	#else
	107	1, /* use_rela_p */
	108	#endif
	109	0, /* elf_64_p */
	110	ELF_ARCH, /* arch */
a5ccdad1	111	ELF_MACHINE_CODE, /* elf_machine_code */
95469b02	112	ELF_MAXPAGESIZE, /* maxpagesize */
643e9fc7 ILT	113	elf_info_to_howto,
	114	elf_info_to_howto_rel,
	115	elf_backend_sym_is_global,
	116	elf_backend_object_p,
	117	elf_backend_symbol_processing,
	118	elf_backend_symbol_table_processing,
	119	elf_backend_section_processing,
	120	elf_backend_section_from_shdr,
	121	elf_backend_fake_sections,
	122	elf_backend_section_from_bfd_section,
	123	elf_backend_final_write_processing,
	124	elf_backend_ecoff_debug_swap
81187b54 KR	125	};
	126
	127	#ifdef TARGET_BIG_SYM
	128	bfd_target TARGET_BIG_SYM =
	129	{
	130	/* name: identify kind of target */
	131	TARGET_BIG_NAME,
	132
	133	/* flavour: general indication about file */
	134	bfd_target_elf_flavour,
	135
	136	/* byteorder_big_p: data is big endian */
	137	true,
	138
	139	/* header_byteorder_big_p: header is also big endian */
	140	true,
	141
	142	/* object_flags: mask of all file flags */
	143	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	144	DYNAMIC \| WP_TEXT),
	145
	146	/* section_flags: mask of all section flags */
	147	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	148	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	149
	150	/* leading_symbol_char: is the first char of a user symbol
	151	predictable, and if so what is it */
	152	0,
	153
	154	/* ar_pad_char: pad character for filenames within an archive header
	155	FIXME: this really has nothing to do with ELF, this is a characteristic
	156	of the archiver and/or os and should be independently tunable */
	157	'/',
	158
	159	/* ar_max_namelen: maximum number of characters in an archive header
	160	FIXME: this really has nothing to do with ELF, this is a characteristic
	161	of the archiver and should be independently tunable. This value is
	162	a WAG (wild a** guess) */
	163	15,
	164
	165	/* align_power_min: minimum alignment restriction for any section
	166	FIXME: this value may be target machine dependent */
	167	3,
	168
	169	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	170	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	171	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	172	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	173
81187b54 KR	174	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	175	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	176	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	177	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	178
	179	/* bfd_check_format: check the format of a file being read */
	180	{ _bfd_dummy_target, /* unknown format */
9942e684	181	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	182	bfd_generic_archive_p, /* an archive */
9942e684	183	bfd_elf32_core_file_p /* a core file */
81187b54 KR	184	},
	185
	186	/* bfd_set_format: set the format of a file being written */
	187	{ bfd_false,
998ce1e0	188	bfd_elf_mkobject,
81187b54 KR	189	_bfd_generic_mkarchive,
	190	bfd_false
	191	},
	192
	193	/* bfd_write_contents: write cached information into a file being written */
	194	{ bfd_false,
9942e684	195	bfd_elf32_write_object_contents,
81187b54 KR	196	_bfd_write_archive_contents,
	197	bfd_false
	198	},
	199
	200	/* Initialize a jump table with the standard macro. All names start with
	201	"elf" */
9942e684	202	JUMP_TABLE(bfd_elf32),
81187b54 KR	203
81187b54 KR	204	/* backend_data: */
9942e684	205	(PTR) &elf32_bed,
81187b54 KR	206	};
	207	#endif
	208
	209	#ifdef TARGET_LITTLE_SYM
	210	bfd_target TARGET_LITTLE_SYM =
	211	{
	212	/* name: identify kind of target */
	213	TARGET_LITTLE_NAME,
	214
	215	/* flavour: general indication about file */
	216	bfd_target_elf_flavour,
	217
	218	/* byteorder_big_p: data is big endian */
	219	false, /* Nope -- this one's little endian */
	220
	221	/* header_byteorder_big_p: header is also big endian */
	222	false, /* Nope -- this one's little endian */
	223
	224	/* object_flags: mask of all file flags */
	225	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	226	DYNAMIC \| WP_TEXT),
	227
	228	/* section_flags: mask of all section flags */
	229	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	230	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	231
	232	/* leading_symbol_char: is the first char of a user symbol
	233	predictable, and if so what is it */
	234	0,
	235
	236	/* ar_pad_char: pad character for filenames within an archive header
	237	FIXME: this really has nothing to do with ELF, this is a characteristic
	238	of the archiver and/or os and should be independently tunable */
	239	'/',
	240
	241	/* ar_max_namelen: maximum number of characters in an archive header
	242	FIXME: this really has nothing to do with ELF, this is a characteristic
	243	of the archiver and should be independently tunable. This value is
	244	a WAG (wild a** guess) */
	245	15,
	246
	247	/* align_power_min: minimum alignment restriction for any section
	248	FIXME: this value may be target machine dependent */
	249	3,
	250
	251	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	252	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	253	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	254	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	255
81187b54 KR	256	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	257	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	258	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	259	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	260
	261	/* bfd_check_format: check the format of a file being read */
	262	{ _bfd_dummy_target, /* unknown format */
9942e684	263	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	264	bfd_generic_archive_p, /* an archive */
9942e684	265	bfd_elf32_core_file_p /* a core file */
81187b54 KR	266	},
	267
	268	/* bfd_set_format: set the format of a file being written */
	269	{ bfd_false,
998ce1e0	270	bfd_elf_mkobject,
81187b54 KR	271	_bfd_generic_mkarchive,
	272	bfd_false
	273	},
	274
	275	/* bfd_write_contents: write cached information into a file being written */
	276	{ bfd_false,
9942e684	277	bfd_elf32_write_object_contents,
81187b54 KR	278	_bfd_write_archive_contents,
	279	bfd_false
	280	},
	281
	282	/* Initialize a jump table with the standard macro. All names start with
	283	"elf" */
9942e684	284	JUMP_TABLE(bfd_elf32),
81187b54 KR	285
81187b54 KR	286	/* backend_data: */
9942e684	287	(PTR) &elf32_bed,
81187b54 KR	288	};
81187b54 KR	289	#endif