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/elf64.h,v 1.17 2006/10/17 05:43:30 jkoshy Exp $
27 * $DragonFly: src/sys/sys/elf64.h,v 1.10 2008/08/30 17:07:17 swildner Exp $
34 #include <sys/types.h>
36 #ifndef _SYS_ELF_COMMON_H_
37 #include <sys/elf_common.h>
41 * ELF definitions common to all 64-bit architectures.
44 typedef uint64_t Elf64_Addr;
45 typedef uint16_t Elf64_Half;
46 typedef uint64_t Elf64_Off;
47 typedef int32_t Elf64_Sword;
48 typedef int64_t Elf64_Sxword;
49 typedef uint32_t Elf64_Word;
50 typedef uint64_t Elf64_Lword;
51 typedef uint64_t Elf64_Xword;
54 * Types of dynamic symbol hash table bucket and chain elements.
56 * This is inconsistent among 64 bit architectures, so a machine dependent
57 * typedef is required.
60 typedef Elf64_Word Elf64_Hashelt;
62 /* Non-standard class-dependent datatype used for abstraction. */
63 typedef Elf64_Xword Elf64_Size;
64 typedef Elf64_Sxword Elf64_Ssize;
71 unsigned char e_ident[EI_NIDENT]; /* File identification. */
72 Elf64_Half e_type; /* File type. */
73 Elf64_Half e_machine; /* Machine architecture. */
74 Elf64_Word e_version; /* ELF format version. */
75 Elf64_Addr e_entry; /* Entry point. */
76 Elf64_Off e_phoff; /* Program header file offset. */
77 Elf64_Off e_shoff; /* Section header file offset. */
78 Elf64_Word e_flags; /* Architecture-specific flags. */
79 Elf64_Half e_ehsize; /* Size of ELF header in bytes. */
80 Elf64_Half e_phentsize; /* Size of program header entry. */
81 Elf64_Half e_phnum; /* Number of program header entries. */
82 Elf64_Half e_shentsize; /* Size of section header entry. */
83 Elf64_Half e_shnum; /* Number of section header entries. */
84 Elf64_Half e_shstrndx; /* Section name strings section. */
92 Elf64_Word sh_name; /* Section name (index into the
93 section header string table). */
94 Elf64_Word sh_type; /* Section type. */
95 Elf64_Xword sh_flags; /* Section flags. */
96 Elf64_Addr sh_addr; /* Address in memory image. */
97 Elf64_Off sh_offset; /* Offset in file. */
98 Elf64_Xword sh_size; /* Size in bytes. */
99 Elf64_Word sh_link; /* Index of a related section. */
100 Elf64_Word sh_info; /* Depends on section type. */
101 Elf64_Xword sh_addralign; /* Alignment in bytes. */
102 Elf64_Xword sh_entsize; /* Size of each entry in section. */
110 Elf64_Word p_type; /* Entry type. */
111 Elf64_Word p_flags; /* Access permission flags. */
112 Elf64_Off p_offset; /* File offset of contents. */
113 Elf64_Addr p_vaddr; /* Virtual address in memory image. */
114 Elf64_Addr p_paddr; /* Physical address (not used). */
115 Elf64_Xword p_filesz; /* Size of contents in file. */
116 Elf64_Xword p_memsz; /* Size of contents in memory. */
117 Elf64_Xword p_align; /* Alignment in memory and file. */
121 * Dynamic structure. The ".dynamic" section contains an array of them.
125 Elf64_Sxword d_tag; /* Entry type. */
127 Elf64_Xword d_val; /* Integer value. */
128 Elf64_Addr d_ptr; /* Address value. */
133 * Relocation entries.
136 /* Relocations that don't need an addend field. */
138 Elf64_Addr r_offset; /* Location to be relocated. */
139 Elf64_Xword r_info; /* Relocation type and symbol index. */
142 /* Relocations that need an addend field. */
144 Elf64_Addr r_offset; /* Location to be relocated. */
145 Elf64_Xword r_info; /* Relocation type and symbol index. */
146 Elf64_Sxword r_addend; /* Addend. */
149 /* Macros for accessing the fields of r_info. */
150 #define ELF64_R_SYM(info) ((info) >> 32)
151 #define ELF64_R_TYPE(info) ((info) & 0xffffffffL)
153 /* Macro for constructing r_info from field values. */
154 #define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL))
156 #define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40)
157 #define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56)
158 #define ELF64_R_TYPE_INFO(data, type) \
159 (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type))
164 typedef Elf_Note Elf64_Nhdr;
170 Elf64_Lword m_value; /* symbol value */
171 Elf64_Xword m_info; /* size + index */
172 Elf64_Xword m_poffset; /* symbol offset */
173 Elf64_Half m_repeat; /* repeat count */
174 Elf64_Half m_stride; /* stride info */
177 #define ELF64_M_SYM(info) ((info)>>8)
178 #define ELF64_M_SIZE(info) ((unsigned char)(info))
179 #define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size))
182 * Hardware/Software capabilities entry
185 Elf64_Xword c_tag; /* how to interpret value */
193 * Symbol table entries.
197 Elf64_Word st_name; /* String table index of name. */
198 unsigned char st_info; /* Type and binding information. */
199 unsigned char st_other; /* Reserved (not used). */
200 Elf64_Half st_shndx; /* Section index of symbol. */
201 Elf64_Addr st_value; /* Symbol value. */
202 Elf64_Xword st_size; /* Size of associated object. */
205 /* Macros for accessing the fields of st_info. */
206 #define ELF64_ST_BIND(info) ((info) >> 4)
207 #define ELF64_ST_TYPE(info) ((info) & 0xf)
209 /* Macro for constructing st_info from field values. */
210 #define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
212 /* Macro for accessing the fields of st_other. */
213 #define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3)
215 /* Structures used by Sun & GNU-style symbol versioning. */
217 Elf64_Half vd_version;
232 Elf64_Half vn_version;
241 Elf64_Half vna_flags;
242 Elf64_Half vna_other;
247 typedef Elf64_Half Elf64_Versym;
250 Elf64_Half si_boundto; /* direct bindings - symbol bound to */
251 Elf64_Half si_flags; /* per symbol flags */
254 #endif /* !_SYS_ELF64_H_ */