[thirdparty/binutils-gdb.git] / include / elf / external.h

/* ELF support for BFD.
   Copyright 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2001
   Free Software Foundation, Inc.

   Written by Fred Fish @ Cygnus Support, from information published
   in "UNIX System V Release 4, Programmers Guide: ANSI C and
   Programming Support Tools".

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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */


/* This file is part of ELF support for BFD, and contains the portions
   that describe how ELF is represented externally by the BFD library.
   I.E. it describes the in-file representation of ELF.  It requires
   the elf/common.h file which contains the portions that are common to
   both the internal and external representations. */

/* The 64-bit stuff is kind of random.  Perhaps someone will publish a
   spec someday.  */

#ifndef _ELF_EXTERNAL_H
#define _ELF_EXTERNAL_H

/* ELF Header (32-bit implementations) */

typedef struct {
  unsigned char	e_ident[16];		/* ELF "magic number" */
  unsigned char	e_type[2];		/* Identifies object file type */
  unsigned char	e_machine[2];		/* Specifies required architecture */
  unsigned char	e_version[4];		/* Identifies object file version */
  unsigned char	e_entry[4];		/* Entry point virtual address */
  unsigned char	e_phoff[4];		/* Program header table file offset */
  unsigned char	e_shoff[4];		/* Section header table file offset */
  unsigned char	e_flags[4];		/* Processor-specific flags */
  unsigned char	e_ehsize[2];		/* ELF header size in bytes */
  unsigned char	e_phentsize[2];		/* Program header table entry size */
  unsigned char	e_phnum[2];		/* Program header table entry count */
  unsigned char	e_shentsize[2];		/* Section header table entry size */
  unsigned char	e_shnum[2];		/* Section header table entry count */
  unsigned char	e_shstrndx[2];		/* Section header string table index */
} Elf32_External_Ehdr;

typedef struct {
  unsigned char	e_ident[16];		/* ELF "magic number" */
  unsigned char	e_type[2];		/* Identifies object file type */
  unsigned char	e_machine[2];		/* Specifies required architecture */
  unsigned char	e_version[4];		/* Identifies object file version */
  unsigned char	e_entry[8];		/* Entry point virtual address */
  unsigned char	e_phoff[8];		/* Program header table file offset */
  unsigned char	e_shoff[8];		/* Section header table file offset */
  unsigned char	e_flags[4];		/* Processor-specific flags */
  unsigned char	e_ehsize[2];		/* ELF header size in bytes */
  unsigned char	e_phentsize[2];		/* Program header table entry size */
  unsigned char	e_phnum[2];		/* Program header table entry count */
  unsigned char	e_shentsize[2];		/* Section header table entry size */
  unsigned char	e_shnum[2];		/* Section header table entry count */
  unsigned char	e_shstrndx[2];		/* Section header string table index */
} Elf64_External_Ehdr;

/* Program header */

typedef struct {
  unsigned char	p_type[4];		/* Identifies program segment type */
  unsigned char	p_offset[4];		/* Segment file offset */
  unsigned char	p_vaddr[4];		/* Segment virtual address */
  unsigned char	p_paddr[4];		/* Segment physical address */
  unsigned char	p_filesz[4];		/* Segment size in file */
  unsigned char	p_memsz[4];		/* Segment size in memory */
  unsigned char	p_flags[4];		/* Segment flags */
  unsigned char	p_align[4];		/* Segment alignment, file & memory */
} Elf32_External_Phdr;

typedef struct {
  unsigned char	p_type[4];		/* Identifies program segment type */
  unsigned char	p_flags[4];		/* Segment flags */
  unsigned char	p_offset[8];		/* Segment file offset */
  unsigned char	p_vaddr[8];		/* Segment virtual address */
  unsigned char	p_paddr[8];		/* Segment physical address */
  unsigned char	p_filesz[8];		/* Segment size in file */
  unsigned char	p_memsz[8];		/* Segment size in memory */
  unsigned char	p_align[8];		/* Segment alignment, file & memory */
} Elf64_External_Phdr;

/* Section header */

typedef struct {
  unsigned char	sh_name[4];		/* Section name, index in string tbl */
  unsigned char	sh_type[4];		/* Type of section */
  unsigned char	sh_flags[4];		/* Miscellaneous section attributes */
  unsigned char	sh_addr[4];		/* Section virtual addr at execution */
  unsigned char	sh_offset[4];		/* Section file offset */
  unsigned char	sh_size[4];		/* Size of section in bytes */
  unsigned char	sh_link[4];		/* Index of another section */
  unsigned char	sh_info[4];		/* Additional section information */
  unsigned char	sh_addralign[4];	/* Section alignment */
  unsigned char	sh_entsize[4];		/* Entry size if section holds table */
} Elf32_External_Shdr;

typedef struct {
  unsigned char	sh_name[4];		/* Section name, index in string tbl */
  unsigned char	sh_type[4];		/* Type of section */
  unsigned char	sh_flags[8];		/* Miscellaneous section attributes */
  unsigned char	sh_addr[8];		/* Section virtual addr at execution */
  unsigned char	sh_offset[8];		/* Section file offset */
  unsigned char	sh_size[8];		/* Size of section in bytes */
  unsigned char	sh_link[4];		/* Index of another section */
  unsigned char	sh_info[4];		/* Additional section information */
  unsigned char	sh_addralign[8];	/* Section alignment */
  unsigned char	sh_entsize[8];		/* Entry size if section holds table */
} Elf64_External_Shdr;

/* Symbol table entry */

typedef struct {
  unsigned char	st_name[4];		/* Symbol name, index in string tbl */
  unsigned char	st_value[4];		/* Value of the symbol */
  unsigned char	st_size[4];		/* Associated symbol size */
  unsigned char	st_info[1];		/* Type and binding attributes */
  unsigned char	st_other[1];		/* No defined meaning, 0 */
  unsigned char	st_shndx[2];		/* Associated section index */
} Elf32_External_Sym;

typedef struct {
  unsigned char	st_name[4];		/* Symbol name, index in string tbl */
  unsigned char	st_info[1];		/* Type and binding attributes */
  unsigned char	st_other[1];		/* No defined meaning, 0 */
  unsigned char	st_shndx[2];		/* Associated section index */
  unsigned char	st_value[8];		/* Value of the symbol */
  unsigned char	st_size[8];		/* Associated symbol size */
} Elf64_External_Sym;

typedef struct {
  unsigned char est_shndx[4];		/* Section index */
} Elf_External_Sym_Shndx;

/* Note segments */

typedef struct {
  unsigned char	namesz[4];		/* Size of entry's owner string */
  unsigned char	descsz[4];		/* Size of the note descriptor */
  unsigned char	type[4];		/* Interpretation of the descriptor */
  char		name[1];		/* Start of the name+desc data */
} Elf_External_Note;

/* Relocation Entries */
typedef struct {
  unsigned char r_offset[4];	/* Location at which to apply the action */
  unsigned char	r_info[4];	/* index and type of relocation */
} Elf32_External_Rel;

typedef struct {
  unsigned char r_offset[4];	/* Location at which to apply the action */
  unsigned char	r_info[4];	/* index and type of relocation */
  unsigned char	r_addend[4];	/* Constant addend used to compute value */
} Elf32_External_Rela;

typedef struct {
  unsigned char r_offset[8];	/* Location at which to apply the action */
  unsigned char	r_info[8];	/* index and type of relocation */
} Elf64_External_Rel;

typedef struct {
  unsigned char r_offset[8];	/* Location at which to apply the action */
  unsigned char	r_info[8];	/* index and type of relocation */
  unsigned char	r_addend[8];	/* Constant addend used to compute value */
} Elf64_External_Rela;

/* dynamic section structure */

typedef struct {
  unsigned char	d_tag[4];		/* entry tag value */
  union {
    unsigned char	d_val[4];
    unsigned char	d_ptr[4];
  } d_un;
} Elf32_External_Dyn;

typedef struct {
  unsigned char	d_tag[8];		/* entry tag value */
  union {
    unsigned char	d_val[8];
    unsigned char	d_ptr[8];
  } d_un;
} Elf64_External_Dyn;

/* The version structures are currently size independent.  They are
   named without a 32 or 64.  If that ever changes, these structures
   will need to be renamed.  */

/* This structure appears in a SHT_GNU_verdef section.  */

typedef struct {
  unsigned char		vd_version[2];
  unsigned char		vd_flags[2];
  unsigned char		vd_ndx[2];
  unsigned char		vd_cnt[2];
  unsigned char		vd_hash[4];
  unsigned char		vd_aux[4];
  unsigned char		vd_next[4];
} Elf_External_Verdef;

/* This structure appears in a SHT_GNU_verdef section.  */

typedef struct {
  unsigned char		vda_name[4];
  unsigned char		vda_next[4];
} Elf_External_Verdaux;

/* This structure appears in a SHT_GNU_verneed section.  */

typedef struct {
  unsigned char		vn_version[2];
  unsigned char		vn_cnt[2];
  unsigned char		vn_file[4];
  unsigned char		vn_aux[4];
  unsigned char		vn_next[4];
} Elf_External_Verneed;

/* This structure appears in a SHT_GNU_verneed section.  */

typedef struct {
  unsigned char		vna_hash[4];
  unsigned char		vna_flags[2];
  unsigned char		vna_other[2];
  unsigned char		vna_name[4];
  unsigned char		vna_next[4];
} Elf_External_Vernaux;

/* This structure appears in a SHT_GNU_versym section.  This is not a
   standard ELF structure; ELF just uses Elf32_Half.  */

typedef struct {
  unsigned char		vs_vers[2];
}
#ifdef __GNUC__
  __attribute__ ((packed))
#endif
  Elf_External_Versym;

/* Structure for syminfo section.  */
typedef struct
{
  unsigned char		si_boundto[2];
  unsigned char		si_flags[2];
} Elf_External_Syminfo;

#endif /* _ELF_EXTERNAL_H */
Commit	Line	Data
252b5132	1	/* ELF support for BFD.
ae990a1a	2	Copyright 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2001
4f1d9bd8	3	Free Software Foundation, Inc.
252b5132 RH	4
	5	Written by Fred Fish @ Cygnus Support, from information published
	6	in "UNIX System V Release 4, Programmers Guide: ANSI C and
	7	Programming Support Tools".
	8
	9	This file is part of BFD, the Binary File Descriptor library.
	10
	11	This program is free software; you can redistribute it and/or modify
	12	it under the terms of the GNU General Public License as published by
	13	the Free Software Foundation; either version 2 of the License, or
	14	(at your option) any later version.
	15
	16	This program is distributed in the hope that it will be useful,
	17	but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	GNU General Public License for more details.
	20
	21	You should have received a copy of the GNU General Public License
	22	along with this program; if not, write to the Free Software
	23	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	24
	25
	26	/* This file is part of ELF support for BFD, and contains the portions
	27	that describe how ELF is represented externally by the BFD library.
	28	I.E. it describes the in-file representation of ELF. It requires
ae990a1a	29	the elf/common.h file which contains the portions that are common to
252b5132 RH	30	both the internal and external representations. */
	31
	32	/* The 64-bit stuff is kind of random. Perhaps someone will publish a
	33	spec someday. */
	34
	35	#ifndef _ELF_EXTERNAL_H
	36	#define _ELF_EXTERNAL_H
	37
	38	/* ELF Header (32-bit implementations) */
	39
	40	typedef struct {
	41	unsigned char e_ident[16]; /* ELF "magic number" */
	42	unsigned char e_type[2]; /* Identifies object file type */
	43	unsigned char e_machine[2]; /* Specifies required architecture */
	44	unsigned char e_version[4]; /* Identifies object file version */
	45	unsigned char e_entry[4]; /* Entry point virtual address */
	46	unsigned char e_phoff[4]; /* Program header table file offset */
	47	unsigned char e_shoff[4]; /* Section header table file offset */
	48	unsigned char e_flags[4]; /* Processor-specific flags */
	49	unsigned char e_ehsize[2]; /* ELF header size in bytes */
	50	unsigned char e_phentsize[2]; /* Program header table entry size */
	51	unsigned char e_phnum[2]; /* Program header table entry count */
	52	unsigned char e_shentsize[2]; /* Section header table entry size */
	53	unsigned char e_shnum[2]; /* Section header table entry count */
	54	unsigned char e_shstrndx[2]; /* Section header string table index */
	55	} Elf32_External_Ehdr;
	56
	57	typedef struct {
	58	unsigned char e_ident[16]; /* ELF "magic number" */
	59	unsigned char e_type[2]; /* Identifies object file type */
	60	unsigned char e_machine[2]; /* Specifies required architecture */
	61	unsigned char e_version[4]; /* Identifies object file version */
	62	unsigned char e_entry[8]; /* Entry point virtual address */
	63	unsigned char e_phoff[8]; /* Program header table file offset */
	64	unsigned char e_shoff[8]; /* Section header table file offset */
	65	unsigned char e_flags[4]; /* Processor-specific flags */
	66	unsigned char e_ehsize[2]; /* ELF header size in bytes */
	67	unsigned char e_phentsize[2]; /* Program header table entry size */
	68	unsigned char e_phnum[2]; /* Program header table entry count */
	69	unsigned char e_shentsize[2]; /* Section header table entry size */
	70	unsigned char e_shnum[2]; /* Section header table entry count */
	71	unsigned char e_shstrndx[2]; /* Section header string table index */
	72	} Elf64_External_Ehdr;
	73
	74	/* Program header */
	75
	76	typedef struct {
	77	unsigned char p_type[4]; /* Identifies program segment type */
	78	unsigned char p_offset[4]; /* Segment file offset */
	79	unsigned char p_vaddr[4]; /* Segment virtual address */
	80	unsigned char p_paddr[4]; /* Segment physical address */
	81	unsigned char p_filesz[4]; /* Segment size in file */
	82	unsigned char p_memsz[4]; /* Segment size in memory */
	83	unsigned char p_flags[4]; /* Segment flags */
	84	unsigned char p_align[4]; /* Segment alignment, file & memory */
	85	} Elf32_External_Phdr;
	86
	87	typedef struct {
	88	unsigned char p_type[4]; /* Identifies program segment type */
	89	unsigned char p_flags[4]; /* Segment flags */
	90	unsigned char p_offset[8]; /* Segment file offset */
	91	unsigned char p_vaddr[8]; /* Segment virtual address */
	92	unsigned char p_paddr[8]; /* Segment physical address */
	93	unsigned char p_filesz[8]; /* Segment size in file */
94	unsigned char p_memsz[8]; /* Segment size in memory */
95	unsigned char p_align[8]; /* Segment alignment, file & memory */
96	} Elf64_External_Phdr;
97
98	/* Section header */
99
100	typedef struct {
101	unsigned char sh_name[4]; /* Section name, index in string tbl */
102	unsigned char sh_type[4]; /* Type of section */
103	unsigned char sh_flags[4]; /* Miscellaneous section attributes */
104	unsigned char sh_addr[4]; /* Section virtual addr at execution */
105	unsigned char sh_offset[4]; /* Section file offset */
106	unsigned char sh_size[4]; /* Size of section in bytes */
107	unsigned char sh_link[4]; /* Index of another section */
108	unsigned char sh_info[4]; /* Additional section information */
109	unsigned char sh_addralign[4]; /* Section alignment */
110	unsigned char sh_entsize[4]; /* Entry size if section holds table */
111	} Elf32_External_Shdr;
112
113	typedef struct {
114	unsigned char sh_name[4]; /* Section name, index in string tbl */
115	unsigned char sh_type[4]; /* Type of section */
116	unsigned char sh_flags[8]; /* Miscellaneous section attributes */
117	unsigned char sh_addr[8]; /* Section virtual addr at execution */
118	unsigned char sh_offset[8]; /* Section file offset */
119	unsigned char sh_size[8]; /* Size of section in bytes */
120	unsigned char sh_link[4]; /* Index of another section */
121	unsigned char sh_info[4]; /* Additional section information */
122	unsigned char sh_addralign[8]; /* Section alignment */
123	unsigned char sh_entsize[8]; /* Entry size if section holds table */
124	} Elf64_External_Shdr;
125
126	/* Symbol table entry */
127
128	typedef struct {
129	unsigned char st_name[4]; /* Symbol name, index in string tbl */
130	unsigned char st_value[4]; /* Value of the symbol */
131	unsigned char st_size[4]; /* Associated symbol size */
132	unsigned char st_info[1]; /* Type and binding attributes */
133	unsigned char st_other[1]; /* No defined meaning, 0 */
134	unsigned char st_shndx[2]; /* Associated section index */
135	} Elf32_External_Sym;
136
137	typedef struct {
138	unsigned char st_name[4]; /* Symbol name, index in string tbl */
139	unsigned char st_info[1]; /* Type and binding attributes */
140	unsigned char st_other[1]; /* No defined meaning, 0 */
141	unsigned char st_shndx[2]; /* Associated section index */
142	unsigned char st_value[8]; /* Value of the symbol */
143	unsigned char st_size[8]; /* Associated symbol size */
144	} Elf64_External_Sym;
145
9ad5cbcf AM	146	typedef struct {
	147	unsigned char est_shndx[4]; /* Section index */
	148	} Elf_External_Sym_Shndx;
	149
252b5132 RH	150	/* Note segments */
	151
	152	typedef struct {
	153	unsigned char namesz[4]; /* Size of entry's owner string */
	154	unsigned char descsz[4]; /* Size of the note descriptor */
	155	unsigned char type[4]; /* Interpretation of the descriptor */
	156	char name[1]; /* Start of the name+desc data */
	157	} Elf_External_Note;
	158
	159	/* Relocation Entries */
	160	typedef struct {
	161	unsigned char r_offset[4]; /* Location at which to apply the action */
	162	unsigned char r_info[4]; /* index and type of relocation */
	163	} Elf32_External_Rel;
	164
	165	typedef struct {
	166	unsigned char r_offset[4]; /* Location at which to apply the action */
	167	unsigned char r_info[4]; /* index and type of relocation */
	168	unsigned char r_addend[4]; /* Constant addend used to compute value */
	169	} Elf32_External_Rela;
	170
	171	typedef struct {
	172	unsigned char r_offset[8]; /* Location at which to apply the action */
	173	unsigned char r_info[8]; /* index and type of relocation */
	174	} Elf64_External_Rel;
	175
	176	typedef struct {
	177	unsigned char r_offset[8]; /* Location at which to apply the action */
	178	unsigned char r_info[8]; /* index and type of relocation */
	179	unsigned char r_addend[8]; /* Constant addend used to compute value */
	180	} Elf64_External_Rela;
	181
	182	/* dynamic section structure */
	183
	184	typedef struct {
	185	unsigned char d_tag[4]; /* entry tag value */
	186	union {
	187	unsigned char d_val[4];
	188	unsigned char d_ptr[4];
	189	} d_un;
	190	} Elf32_External_Dyn;
	191
	192	typedef struct {
	193	unsigned char d_tag[8]; /* entry tag value */
	194	union {
	195	unsigned char d_val[8];
	196	unsigned char d_ptr[8];
	197	} d_un;
	198	} Elf64_External_Dyn;
	199
	200	/* The version structures are currently size independent. They are
	201	named without a 32 or 64. If that ever changes, these structures
	202	will need to be renamed. */
	203
	204	/* This structure appears in a SHT_GNU_verdef section. */
	205
	206	typedef struct {
	207	unsigned char vd_version[2];
	208	unsigned char vd_flags[2];
	209	unsigned char vd_ndx[2];
	210	unsigned char vd_cnt[2];
	211	unsigned char vd_hash[4];
	212	unsigned char vd_aux[4];
	213	unsigned char vd_next[4];
214	} Elf_External_Verdef;
215
216	/* This structure appears in a SHT_GNU_verdef section. */
217
218	typedef struct {
219	unsigned char vda_name[4];
220	unsigned char vda_next[4];
221	} Elf_External_Verdaux;
222
223	/* This structure appears in a SHT_GNU_verneed section. */
224
225	typedef struct {
226	unsigned char vn_version[2];
227	unsigned char vn_cnt[2];
228	unsigned char vn_file[4];
229	unsigned char vn_aux[4];
230	unsigned char vn_next[4];
231	} Elf_External_Verneed;
232
233	/* This structure appears in a SHT_GNU_verneed section. */
234
235	typedef struct {
236	unsigned char vna_hash[4];
237	unsigned char vna_flags[2];
238	unsigned char vna_other[2];
239	unsigned char vna_name[4];
240	unsigned char vna_next[4];
241	} Elf_External_Vernaux;
242
243	/* This structure appears in a SHT_GNU_versym section. This is not a
244	standard ELF structure; ELF just uses Elf32_Half. */
245
246	typedef struct {
247	unsigned char vs_vers[2];
248	}
249	#ifdef __GNUC__
250	__attribute__ ((packed))
251	#endif
252	Elf_External_Versym;
253
254	/* Structure for syminfo section. */
255	typedef struct
256	{
257	unsigned char si_boundto[2];
258	unsigned char si_flags[2];
259	} Elf_External_Syminfo;
260
261	#endif /* _ELF_EXTERNAL_H */