[binutils.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
#ifndef bfd_elf32_bfd_seclet_link
#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
#endif
#define bfd_elf32_bfd_make_debug_symbol \
  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)

#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_object_p
#define elf_backend_object_p		0	/* elf_backend_object_p */
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing	0	/* elf_backend_symbol_processing */
#endif
#ifndef elf_backend_symbol_table_processing
#define elf_backend_symbol_table_processing	0	/* elf_backend_symbol_table_processing */
#endif
#ifndef elf_backend_section_processing
#define elf_backend_section_processing	0	/* elf_backend_section_processing */
#endif
#ifndef elf_backend_section_from_shdr
#define elf_backend_section_from_shdr	0	/* elf_backend_section_from_shdr */
#endif
#ifndef elf_backend_fake_sections
#define elf_backend_fake_sections	0	/* elf_backend_fake_sections */
#endif
#ifndef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section	0	/* elf_backend_section_from_bfd_section */
#endif
#ifndef elf_backend_ecoff_debug_swap
#define elf_backend_ecoff_debug_swap	0	/* elf_backed_ecoff_debug_swap */
#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 */
  elf_info_to_howto_rel,	/* elf_info_to_howto_rel */
  elf_backend_object_p,			/* elf_backend_object_p */
  elf_backend_symbol_processing,	/* elf_backend_symbol_processing */
  elf_backend_symbol_table_processing,	/* elf_backend_symbol_table_processing */
  elf_backend_section_processing,	/* elf_backend_section_processing */
  elf_backend_section_from_shdr,	/* elf_backend_section_from_shdr */
  elf_backend_fake_sections,		/* elf_backend_fake_sections */
  elf_backend_section_from_bfd_section,	/* elf_backend_section_from_bfd_section */
  elf_backend_ecoff_debug_swap		/* 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
632f2cc7	50	#ifndef bfd_elf32_bfd_seclet_link
9942e684	51	#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
632f2cc7	52	#endif
9942e684	53	#define bfd_elf32_bfd_make_debug_symbol \
81187b54 KR	54	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
81187b54 KR	55
b3024965 KR	56	#ifndef elf_info_to_howto_rel
	57	#define elf_info_to_howto_rel 0
	58	#endif
	59
	60	#ifndef ELF_MAXPAGESIZE
	61	#define ELF_MAXPAGESIZE 1
	62	#endif
	63
a5ccdad1 ILT	64	#ifndef elf_backend_object_p
	65	#define elf_backend_object_p 0 /* elf_backend_object_p */
	66	#endif
e2a422b8 KR	67	#ifndef elf_backend_symbol_processing
	68	#define elf_backend_symbol_processing 0 /* elf_backend_symbol_processing */
	69	#endif
	70	#ifndef elf_backend_symbol_table_processing
	71	#define elf_backend_symbol_table_processing 0 /* elf_backend_symbol_table_processing */
	72	#endif
	73	#ifndef elf_backend_section_processing
	74	#define elf_backend_section_processing 0 /* elf_backend_section_processing */
	75	#endif
	76	#ifndef elf_backend_section_from_shdr
	77	#define elf_backend_section_from_shdr 0 /* elf_backend_section_from_shdr */
	78	#endif
	79	#ifndef elf_backend_fake_sections
	80	#define elf_backend_fake_sections 0 /* elf_backend_fake_sections */
	81	#endif
	82	#ifndef elf_backend_section_from_bfd_section
	83	#define elf_backend_section_from_bfd_section 0 /* elf_backend_section_from_bfd_section */
	84	#endif
95469b02 ILT	85	#ifndef elf_backend_ecoff_debug_swap
	86	#define elf_backend_ecoff_debug_swap 0 /* elf_backed_ecoff_debug_swap */
	87	#endif
e2a422b8	88
268f94ac	89	static CONST struct elf_backend_data elf32_bed =
81187b54	90	{
7050286d KR	91	#ifdef USE_REL
	92	0, /* use_rela_p */
	93	#else
	94	1, /* use_rela_p */
	95	#endif
	96	0, /* elf_64_p */
	97	ELF_ARCH, /* arch */
a5ccdad1	98	ELF_MACHINE_CODE, /* elf_machine_code */
95469b02	99	ELF_MAXPAGESIZE, /* maxpagesize */
7050286d	100	elf_info_to_howto, /* elf_info_to_howto */
7050286d	101	elf_info_to_howto_rel, /* elf_info_to_howto_rel */
a5ccdad1	102	elf_backend_object_p, /* elf_backend_object_p */
e2a422b8 KR	103	elf_backend_symbol_processing, /* elf_backend_symbol_processing */
	104	elf_backend_symbol_table_processing, /* elf_backend_symbol_table_processing */
	105	elf_backend_section_processing, /* elf_backend_section_processing */
	106	elf_backend_section_from_shdr, /* elf_backend_section_from_shdr */
	107	elf_backend_fake_sections, /* elf_backend_fake_sections */
	108	elf_backend_section_from_bfd_section, /* elf_backend_section_from_bfd_section */
95469b02	109	elf_backend_ecoff_debug_swap /* elf_backend_ecoff_debug_swap */
81187b54 KR	110	};
	111
	112	#ifdef TARGET_BIG_SYM
	113	bfd_target TARGET_BIG_SYM =
	114	{
	115	/* name: identify kind of target */
	116	TARGET_BIG_NAME,
	117
	118	/* flavour: general indication about file */
	119	bfd_target_elf_flavour,
	120
	121	/* byteorder_big_p: data is big endian */
	122	true,
	123
	124	/* header_byteorder_big_p: header is also big endian */
	125	true,
	126
	127	/* object_flags: mask of all file flags */
	128	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	129	DYNAMIC \| WP_TEXT),
	130
	131	/* section_flags: mask of all section flags */
	132	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	133	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	134
	135	/* leading_symbol_char: is the first char of a user symbol
	136	predictable, and if so what is it */
	137	0,
	138
	139	/* ar_pad_char: pad character for filenames within an archive header
	140	FIXME: this really has nothing to do with ELF, this is a characteristic
	141	of the archiver and/or os and should be independently tunable */
	142	'/',
	143
	144	/* ar_max_namelen: maximum number of characters in an archive header
	145	FIXME: this really has nothing to do with ELF, this is a characteristic
	146	of the archiver and should be independently tunable. This value is
	147	a WAG (wild a** guess) */
	148	15,
	149
	150	/* align_power_min: minimum alignment restriction for any section
	151	FIXME: this value may be target machine dependent */
	152	3,
	153
	154	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	155	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	156	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	157	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	158
81187b54 KR	159	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	160	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	161	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	162	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	163
	164	/* bfd_check_format: check the format of a file being read */
	165	{ _bfd_dummy_target, /* unknown format */
9942e684	166	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	167	bfd_generic_archive_p, /* an archive */
9942e684	168	bfd_elf32_core_file_p /* a core file */
81187b54 KR	169	},
	170
	171	/* bfd_set_format: set the format of a file being written */
	172	{ bfd_false,
998ce1e0	173	bfd_elf_mkobject,
81187b54 KR	174	_bfd_generic_mkarchive,
	175	bfd_false
	176	},
	177
	178	/* bfd_write_contents: write cached information into a file being written */
	179	{ bfd_false,
9942e684	180	bfd_elf32_write_object_contents,
81187b54 KR	181	_bfd_write_archive_contents,
	182	bfd_false
	183	},
	184
	185	/* Initialize a jump table with the standard macro. All names start with
	186	"elf" */
9942e684	187	JUMP_TABLE(bfd_elf32),
81187b54 KR	188
81187b54 KR	189	/* backend_data: */
9942e684	190	(PTR) &elf32_bed,
81187b54 KR	191	};
	192	#endif
	193
	194	#ifdef TARGET_LITTLE_SYM
	195	bfd_target TARGET_LITTLE_SYM =
	196	{
	197	/* name: identify kind of target */
	198	TARGET_LITTLE_NAME,
	199
	200	/* flavour: general indication about file */
	201	bfd_target_elf_flavour,
	202
	203	/* byteorder_big_p: data is big endian */
	204	false, /* Nope -- this one's little endian */
	205
	206	/* header_byteorder_big_p: header is also big endian */
	207	false, /* Nope -- this one's little endian */
	208
	209	/* object_flags: mask of all file flags */
	210	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	211	DYNAMIC \| WP_TEXT),
	212
	213	/* section_flags: mask of all section flags */
	214	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	215	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	216
	217	/* leading_symbol_char: is the first char of a user symbol
	218	predictable, and if so what is it */
	219	0,
	220
	221	/* ar_pad_char: pad character for filenames within an archive header
	222	FIXME: this really has nothing to do with ELF, this is a characteristic
	223	of the archiver and/or os and should be independently tunable */
	224	'/',
	225
	226	/* ar_max_namelen: maximum number of characters in an archive header
	227	FIXME: this really has nothing to do with ELF, this is a characteristic
	228	of the archiver and should be independently tunable. This value is
	229	a WAG (wild a** guess) */
	230	15,
	231
	232	/* align_power_min: minimum alignment restriction for any section
	233	FIXME: this value may be target machine dependent */
	234	3,
	235
	236	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	237	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	238	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	239	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	240
81187b54 KR	241	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	242	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	243	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	244	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	245
	246	/* bfd_check_format: check the format of a file being read */
	247	{ _bfd_dummy_target, /* unknown format */
9942e684	248	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	249	bfd_generic_archive_p, /* an archive */
9942e684	250	bfd_elf32_core_file_p /* a core file */
81187b54 KR	251	},
	252
	253	/* bfd_set_format: set the format of a file being written */
	254	{ bfd_false,
998ce1e0	255	bfd_elf_mkobject,
81187b54 KR	256	_bfd_generic_mkarchive,
	257	bfd_false
	258	},
	259
	260	/* bfd_write_contents: write cached information into a file being written */
	261	{ bfd_false,
9942e684	262	bfd_elf32_write_object_contents,
81187b54 KR	263	_bfd_write_archive_contents,
	264	bfd_false
	265	},
	266
	267	/* Initialize a jump table with the standard macro. All names start with
	268	"elf" */
9942e684	269	JUMP_TABLE(bfd_elf32),
81187b54 KR	270
81187b54 KR	271	/* backend_data: */
9942e684	272	(PTR) &elf32_bed,
81187b54 KR	273	};
81187b54 KR	274	#endif