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elf64.h
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1 /*-
2  * Copyright (c) 1996-1998 John D. Polstra.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
13  *
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
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/sys/elf64.h,v 1.10 2002/05/30 08:32:18 dfr Exp $
27  */
28 
29 #ifndef _SYS_ELF64_H_
30 #define _SYS_ELF64_H_ 1
31 
32 /*
33  * ELF definitions common to all 64-bit architectures.
34  */
35 
43 
44 /*
45  * Types of dynamic symbol hash table bucket and chain elements.
46  *
47  * This is inconsistent among 64 bit architectures, so a machine dependent
48  * typedef is required.
49  */
50 
51 #ifdef _ALPHA_
52 typedef Elf64_Off Elf64_Hashelt;
53 #else
55 #endif
56 
57 /*
58  * ELF header.
59  */
60 
61 typedef struct {
62  unsigned char e_ident[EI_NIDENT]; /* File identification. */
63  Elf64_Quarter e_type; /* File type. */
64  Elf64_Quarter e_machine; /* Machine architecture. */
65  Elf64_Half e_version; /* ELF format version. */
66  Elf64_Addr e_entry; /* Entry point. */
67  Elf64_Off e_phoff; /* Program header file offset. */
68  Elf64_Off e_shoff; /* Section header file offset. */
69  Elf64_Half e_flags; /* Architecture-specific flags. */
70  Elf64_Quarter e_ehsize; /* Size of ELF header in bytes. */
71  Elf64_Quarter e_phentsize; /* Size of program header entry. */
72  Elf64_Quarter e_phnum; /* Number of program header entries. */
73  Elf64_Quarter e_shentsize; /* Size of section header entry. */
74  Elf64_Quarter e_shnum; /* Number of section header entries. */
75  Elf64_Quarter e_shstrndx; /* Section name strings section. */
76 } Elf64_Ehdr;
77 
78 /*
79  * Section header.
80  */
81 
82 typedef struct {
83  Elf64_Half sh_name; /* Section name (index into the
84  section header string table). */
85  Elf64_Half sh_type; /* Section type. */
86  Elf64_Size sh_flags; /* Section flags. */
87  Elf64_Addr sh_addr; /* Address in memory image. */
88  Elf64_Off sh_offset; /* Offset in file. */
89  Elf64_Size sh_size; /* Size in bytes. */
90  Elf64_Half sh_link; /* Index of a related section. */
91  Elf64_Half sh_info; /* Depends on section type. */
92  Elf64_Size sh_addralign; /* Alignment in bytes. */
93  Elf64_Size sh_entsize; /* Size of each entry in section. */
94 } Elf64_Shdr;
95 
96 /*
97  * Program header.
98  */
99 
100 typedef struct {
101  Elf64_Half p_type; /* Entry type. */
102  Elf64_Half p_flags; /* Access permission flags. */
103  Elf64_Off p_offset; /* File offset of contents. */
104  Elf64_Addr p_vaddr; /* Virtual address in memory image. */
105  Elf64_Addr p_paddr; /* Physical address (not used). */
106  Elf64_Size p_filesz; /* Size of contents in file. */
107  Elf64_Size p_memsz; /* Size of contents in memory. */
108  Elf64_Size p_align; /* Alignment in memory and file. */
109 } Elf64_Phdr;
110 
111 /*
112  * Dynamic structure. The ".dynamic" section contains an array of them.
113  */
114 
115 typedef struct {
116  Elf64_Size d_tag; /* Entry type. */
117  union {
118  Elf64_Size d_val; /* Integer value. */
119  Elf64_Addr d_ptr; /* Address value. */
120  } d_un;
121 } Elf64_Dyn;
122 
123 /*
124  * Relocation entries.
125  */
126 
127 /* Relocations that don't need an addend field. */
128 typedef struct {
129  Elf64_Addr r_offset; /* Location to be relocated. */
130  Elf64_Size r_info; /* Relocation type and symbol index. */
131 } Elf64_Rel;
132 
133 /* Relocations that need an addend field. */
134 typedef struct {
135  Elf64_Addr r_offset; /* Location to be relocated. */
136  Elf64_Size r_info; /* Relocation type and symbol index. */
137  Elf64_Off r_addend; /* Addend. */
138 } Elf64_Rela;
139 
140 /* Macros for accessing the fields of r_info. */
141 #define ELF64_R_SYM(info) ((info) >> 32)
142 #define ELF64_R_TYPE(info) ((unsigned char)(info))
143 
144 /* Macro for constructing r_info from field values. */
145 #define ELF64_R_INFO(sym, type) (((sym) << 32) + (unsigned char)(type))
146 
147 /*
148  * Symbol table entries.
149  */
150 
151 typedef struct {
152  Elf64_Half st_name; /* String table index of name. */
153  unsigned char st_info; /* Type and binding information. */
154  unsigned char st_other; /* Reserved (not used). */
155  Elf64_Quarter st_shndx; /* Section index of symbol. */
156  Elf64_Addr st_value; /* Symbol value. */
157  Elf64_Size st_size; /* Size of associated object. */
158 } Elf64_Sym;
159 
160 /* Macros for accessing the fields of st_info. */
161 #define ELF64_ST_BIND(info) ((info) >> 4)
162 #define ELF64_ST_TYPE(info) ((info) & 0xf)
163 
164 /* Macro for constructing st_info from field values. */
165 #define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
166 
167 #endif /* !_SYS_ELF64_H_ */
Elf64_Addr e_entry
Definition: elf64.h:66
unsigned int ULONG32
Definition: basetsd.h:125
Elf64_Quarter e_shstrndx
Definition: elf64.h:75
Elf64_Quarter e_type
Definition: elf64.h:63
Elf64_Half Elf64_Hashelt
Definition: elf64.h:54
Elf64_Quarter e_shentsize
Definition: elf64.h:73
LONG64 Elf64_Sword
Definition: elf64.h:39
Elf64_Half st_name
Definition: elf64.h:152
Elf64_Size sh_flags
Definition: elf64.h:86
Elf64_Addr d_ptr
Definition: elf64.h:119
Elf64_Quarter e_shnum
Definition: elf64.h:74
Elf64_Half p_flags
Definition: elf64.h:102
Elf64_Size r_info
Definition: elf64.h:130
Elf64_Size r_info
Definition: elf64.h:136
#define EI_NIDENT
Definition: common.h:64
Elf64_Addr p_paddr
Definition: elf64.h:105
Elf64_Addr r_offset
Definition: elf64.h:135
unsigned char st_other
Definition: elf64.h:154
Elf64_Half p_type
Definition: elf64.h:101
Elf64_Half sh_type
Definition: elf64.h:85
int64_t LONG64
Definition: typedefs.h:68
Elf64_Size d_val
Definition: elf64.h:118
Elf64_Quarter e_machine
Definition: elf64.h:64
Elf64_Off sh_offset
Definition: elf64.h:88
Elf64_Size sh_entsize
Definition: elf64.h:93
Elf64_Quarter e_ehsize
Definition: elf64.h:70
ULONG64 Elf64_Off
Definition: elf64.h:38
Elf64_Size sh_size
Definition: elf64.h:89
Elf64_Half sh_link
Definition: elf64.h:90
Elf64_Quarter st_shndx
Definition: elf64.h:155
unsigned char st_info
Definition: elf64.h:153
Elf64_Half sh_name
Definition: elf64.h:83
Elf64_Off r_addend
Definition: elf64.h:137
unsigned __int64 ULONG64
Definition: imports.h:198
ULONG64 Elf64_Word
Definition: elf64.h:40
Elf64_Quarter e_phnum
Definition: elf64.h:72
Elf64_Half e_flags
Definition: elf64.h:69
ULONG32 Elf64_Half
Definition: elf64.h:37
Elf64_Off e_shoff
Definition: elf64.h:68
USHORT Elf64_Quarter
Definition: elf64.h:42
Elf64_Quarter e_phentsize
Definition: elf64.h:71
unsigned short USHORT
Definition: pedump.c:61
Elf64_Addr sh_addr
Definition: elf64.h:87
ULONG64 Elf64_Addr
Definition: elf64.h:36
Elf64_Size sh_addralign
Definition: elf64.h:92
Elf64_Half sh_info
Definition: elf64.h:91
Elf64_Size p_align
Definition: elf64.h:108
Elf64_Addr r_offset
Definition: elf64.h:129
Elf64_Off p_offset
Definition: elf64.h:103
Elf64_Size st_size
Definition: elf64.h:157
ULONG64 Elf64_Size
Definition: elf64.h:41
Elf64_Size p_memsz
Definition: elf64.h:107
Elf64_Size d_tag
Definition: elf64.h:116
Elf64_Addr st_value
Definition: elf64.h:156
Elf64_Size p_filesz
Definition: elf64.h:106
Elf64_Off e_phoff
Definition: elf64.h:67
Elf64_Half e_version
Definition: elf64.h:65
Elf64_Addr p_vaddr
Definition: elf64.h:104