2 * Copyright (c) 1996-1998 John D. Polstra.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/sys/elf32.h,v 1.7 1999/08/28 00:51:41 peter Exp $
33 #include <sys/types.h>
35 #ifndef _SYS_ELF_COMMON_H_
36 #include <sys/elf_common.h>
40 * ELF definitions common to all 32-bit architectures.
43 typedef u_int32_t Elf32_Addr
;
44 typedef u_int16_t Elf32_Half
;
45 typedef u_int32_t Elf32_Off
;
46 typedef int32_t Elf32_Sword
;
47 typedef u_int32_t Elf32_Word
;
48 typedef u_int32_t Elf32_Size
;
49 typedef Elf32_Off Elf32_Hashelt
;
56 unsigned char e_ident
[EI_NIDENT
]; /* File identification. */
57 Elf32_Half e_type
; /* File type. */
58 Elf32_Half e_machine
; /* Machine architecture. */
59 Elf32_Word e_version
; /* ELF format version. */
60 Elf32_Addr e_entry
; /* Entry point. */
61 Elf32_Off e_phoff
; /* Program header file offset. */
62 Elf32_Off e_shoff
; /* Section header file offset. */
63 Elf32_Word e_flags
; /* Architecture-specific flags. */
64 Elf32_Half e_ehsize
; /* Size of ELF header in bytes. */
65 Elf32_Half e_phentsize
; /* Size of program header entry. */
66 Elf32_Half e_phnum
; /* Number of program header entries. */
67 Elf32_Half e_shentsize
; /* Size of section header entry. */
68 Elf32_Half e_shnum
; /* Number of section header entries. */
69 Elf32_Half e_shstrndx
; /* Section name strings section. */
77 Elf32_Word sh_name
; /* Section name (index into the
78 section header string table). */
79 Elf32_Word sh_type
; /* Section type. */
80 Elf32_Word sh_flags
; /* Section flags. */
81 Elf32_Addr sh_addr
; /* Address in memory image. */
82 Elf32_Off sh_offset
; /* Offset in file. */
83 Elf32_Size sh_size
; /* Size in bytes. */
84 Elf32_Word sh_link
; /* Index of a related section. */
85 Elf32_Word sh_info
; /* Depends on section type. */
86 Elf32_Size sh_addralign
; /* Alignment in bytes. */
87 Elf32_Size sh_entsize
; /* Size of each entry in section. */
95 Elf32_Word p_type
; /* Entry type. */
96 Elf32_Off p_offset
; /* File offset of contents. */
97 Elf32_Addr p_vaddr
; /* Virtual address in memory image. */
98 Elf32_Addr p_paddr
; /* Physical address (not used). */
99 Elf32_Size p_filesz
; /* Size of contents in file. */
100 Elf32_Size p_memsz
; /* Size of contents in memory. */
101 Elf32_Word p_flags
; /* Access permission flags. */
102 Elf32_Size p_align
; /* Alignment in memory and file. */
106 * Dynamic structure. The ".dynamic" section contains an array of them.
110 Elf32_Sword d_tag
; /* Entry type. */
112 Elf32_Size d_val
; /* Integer value. */
113 Elf32_Addr d_ptr
; /* Address value. */
118 * Relocation entries.
121 /* Relocations that don't need an addend field. */
123 Elf32_Addr r_offset
; /* Location to be relocated. */
124 Elf32_Word r_info
; /* Relocation type and symbol index. */
127 /* Relocations that need an addend field. */
129 Elf32_Addr r_offset
; /* Location to be relocated. */
130 Elf32_Word r_info
; /* Relocation type and symbol index. */
131 Elf32_Sword r_addend
; /* Addend. */
134 /* Macros for accessing the fields of r_info. */
135 #define ELF32_R_SYM(info) ((info) >> 8)
136 #define ELF32_R_TYPE(info) ((unsigned char)(info))
138 /* Macro for constructing r_info from field values. */
139 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
142 * Symbol table entries.
146 Elf32_Word st_name
; /* String table index of name. */
147 Elf32_Addr st_value
; /* Symbol value. */
148 Elf32_Size st_size
; /* Size of associated object. */
149 unsigned char st_info
; /* Type and binding information. */
150 unsigned char st_other
; /* Reserved (not used). */
151 Elf32_Half st_shndx
; /* Section index of symbol. */
154 /* Macros for accessing the fields of st_info. */
155 #define ELF32_ST_BIND(info) ((info) >> 4)
156 #define ELF32_ST_TYPE(info) ((info) & 0xf)
158 /* Macro for constructing st_info from field values. */
159 #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
161 /* Macro for accessing the fields of st_other. */
162 #define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3)
164 /* Structures used by Sun & GNU symbol versioning. */
167 Elf32_Half vd_version
;
184 Elf32_Half vn_version
;
194 Elf32_Half vna_flags
;
195 Elf32_Half vna_other
;
200 typedef Elf32_Half Elf32_Versym
;
203 Elf32_Half si_boundto
; /* direct bindings - symbol bound to */
204 Elf32_Half si_flags
; /* per symbol flags */
207 #endif /* !_SYS_ELF32_H_ */