[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
#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
#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_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

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_info_to_howto,		/* elf_info_to_howto */
  elf_info_to_howto_rel,	/* elf_info_to_howto_rel */
  ELF_MAXPAGESIZE,		/* maxpagesize */
  bfd_elf32__write_relocs,	/* write_relocs */
  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 */
};

#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), 

   /* 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), 

   /* 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 KR	49	#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
	50	#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
	51	#define bfd_elf32_bfd_make_debug_symbol \
81187b54 KR	52	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
81187b54 KR	53
b3024965 KR	54	#ifndef elf_info_to_howto_rel
	55	#define elf_info_to_howto_rel 0
	56	#endif
	57
	58	#ifndef ELF_MAXPAGESIZE
	59	#define ELF_MAXPAGESIZE 1
	60	#endif
	61
e2a422b8 KR	62	#ifndef elf_backend_symbol_processing
	63	#define elf_backend_symbol_processing 0 /* elf_backend_symbol_processing */
	64	#endif
	65	#ifndef elf_backend_symbol_table_processing
	66	#define elf_backend_symbol_table_processing 0 /* elf_backend_symbol_table_processing */
	67	#endif
	68	#ifndef elf_backend_section_processing
	69	#define elf_backend_section_processing 0 /* elf_backend_section_processing */
	70	#endif
	71	#ifndef elf_backend_section_from_shdr
	72	#define elf_backend_section_from_shdr 0 /* elf_backend_section_from_shdr */
	73	#endif
	74	#ifndef elf_backend_fake_sections
	75	#define elf_backend_fake_sections 0 /* elf_backend_fake_sections */
	76	#endif
	77	#ifndef elf_backend_section_from_bfd_section
	78	#define elf_backend_section_from_bfd_section 0 /* elf_backend_section_from_bfd_section */
	79	#endif
	80
268f94ac	81	static CONST struct elf_backend_data elf32_bed =
81187b54	82	{
7050286d KR	83	#ifdef USE_REL
	84	0, /* use_rela_p */
	85	#else
	86	1, /* use_rela_p */
	87	#endif
	88	0, /* elf_64_p */
	89	ELF_ARCH, /* arch */
	90	elf_info_to_howto, /* elf_info_to_howto */
7050286d	91	elf_info_to_howto_rel, /* elf_info_to_howto_rel */
b3024965	92	ELF_MAXPAGESIZE, /* maxpagesize */
32090b8e	93	bfd_elf32__write_relocs, /* write_relocs */
e2a422b8 KR	94	elf_backend_symbol_processing, /* elf_backend_symbol_processing */
	95	elf_backend_symbol_table_processing, /* elf_backend_symbol_table_processing */
	96	elf_backend_section_processing, /* elf_backend_section_processing */
	97	elf_backend_section_from_shdr, /* elf_backend_section_from_shdr */
	98	elf_backend_fake_sections, /* elf_backend_fake_sections */
	99	elf_backend_section_from_bfd_section, /* elf_backend_section_from_bfd_section */
81187b54 KR	100	};
	101
	102	#ifdef TARGET_BIG_SYM
	103	bfd_target TARGET_BIG_SYM =
	104	{
	105	/* name: identify kind of target */
	106	TARGET_BIG_NAME,
	107
	108	/* flavour: general indication about file */
	109	bfd_target_elf_flavour,
	110
	111	/* byteorder_big_p: data is big endian */
	112	true,
	113
	114	/* header_byteorder_big_p: header is also big endian */
	115	true,
	116
	117	/* object_flags: mask of all file flags */
	118	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	119	DYNAMIC \| WP_TEXT),
	120
	121	/* section_flags: mask of all section flags */
	122	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
	123	SEC_CODE \| SEC_DATA),
	124
	125	/* leading_symbol_char: is the first char of a user symbol
	126	predictable, and if so what is it */
	127	0,
	128
	129	/* ar_pad_char: pad character for filenames within an archive header
	130	FIXME: this really has nothing to do with ELF, this is a characteristic
	131	of the archiver and/or os and should be independently tunable */
	132	'/',
	133
	134	/* ar_max_namelen: maximum number of characters in an archive header
	135	FIXME: this really has nothing to do with ELF, this is a characteristic
	136	of the archiver and should be independently tunable. This value is
	137	a WAG (wild a** guess) */
	138	15,
	139
	140	/* align_power_min: minimum alignment restriction for any section
	141	FIXME: this value may be target machine dependent */
	142	3,
	143
	144	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	145	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	146	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	147	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	148
81187b54 KR	149	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	150	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	151	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	152	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	153
	154	/* bfd_check_format: check the format of a file being read */
	155	{ _bfd_dummy_target, /* unknown format */
9942e684	156	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	157	bfd_generic_archive_p, /* an archive */
9942e684	158	bfd_elf32_core_file_p /* a core file */
81187b54 KR	159	},
	160
	161	/* bfd_set_format: set the format of a file being written */
	162	{ bfd_false,
998ce1e0	163	bfd_elf_mkobject,
81187b54 KR	164	_bfd_generic_mkarchive,
	165	bfd_false
	166	},
	167
	168	/* bfd_write_contents: write cached information into a file being written */
	169	{ bfd_false,
9942e684	170	bfd_elf32_write_object_contents,
81187b54 KR	171	_bfd_write_archive_contents,
	172	bfd_false
	173	},
	174
	175	/* Initialize a jump table with the standard macro. All names start with
	176	"elf" */
9942e684	177	JUMP_TABLE(bfd_elf32),
81187b54 KR	178
81187b54 KR	179	/* backend_data: */
9942e684	180	(PTR) &elf32_bed,
81187b54 KR	181	};
	182	#endif
	183
	184	#ifdef TARGET_LITTLE_SYM
	185	bfd_target TARGET_LITTLE_SYM =
	186	{
	187	/* name: identify kind of target */
	188	TARGET_LITTLE_NAME,
	189
	190	/* flavour: general indication about file */
	191	bfd_target_elf_flavour,
	192
	193	/* byteorder_big_p: data is big endian */
	194	false, /* Nope -- this one's little endian */
	195
	196	/* header_byteorder_big_p: header is also big endian */
	197	false, /* Nope -- this one's little endian */
	198
	199	/* object_flags: mask of all file flags */
	200	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	201	DYNAMIC \| WP_TEXT),
	202
	203	/* section_flags: mask of all section flags */
	204	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
207f85b5	205	SEC_CODE \| SEC_DATA),
81187b54 KR	206
	207	/* leading_symbol_char: is the first char of a user symbol
	208	predictable, and if so what is it */
	209	0,
	210
	211	/* ar_pad_char: pad character for filenames within an archive header
	212	FIXME: this really has nothing to do with ELF, this is a characteristic
	213	of the archiver and/or os and should be independently tunable */
	214	'/',
	215
	216	/* ar_max_namelen: maximum number of characters in an archive header
	217	FIXME: this really has nothing to do with ELF, this is a characteristic
	218	of the archiver and should be independently tunable. This value is
	219	a WAG (wild a** guess) */
	220	15,
	221
	222	/* align_power_min: minimum alignment restriction for any section
	223	FIXME: this value may be target machine dependent */
	224	3,
	225
	226	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	227	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	228	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	229	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	230
81187b54 KR	231	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	232	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	233	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	234	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	235
	236	/* bfd_check_format: check the format of a file being read */
	237	{ _bfd_dummy_target, /* unknown format */
9942e684	238	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	239	bfd_generic_archive_p, /* an archive */
9942e684	240	bfd_elf32_core_file_p /* a core file */
81187b54 KR	241	},
	242
	243	/* bfd_set_format: set the format of a file being written */
	244	{ bfd_false,
998ce1e0	245	bfd_elf_mkobject,
81187b54 KR	246	_bfd_generic_mkarchive,
	247	bfd_false
	248	},
	249
	250	/* bfd_write_contents: write cached information into a file being written */
	251	{ bfd_false,
9942e684	252	bfd_elf32_write_object_contents,
81187b54 KR	253	_bfd_write_archive_contents,
	254	bfd_false
	255	},
	256
	257	/* Initialize a jump table with the standard macro. All names start with
	258	"elf" */
9942e684	259	JUMP_TABLE(bfd_elf32),
81187b54 KR	260
81187b54 KR	261	/* backend_data: */
9942e684	262	(PTR) &elf32_bed,
81187b54 KR	263	};
81187b54 KR	264	#endif