source: trunk/emx/include/sys/elf64.h

Last change on this file was 3659, checked in by bird, 15 years ago

emx: Added elf headers and fixed some properties.
  • Property svn:eol-style set to native
File size: 7.3 KB
RevLine 
[3659]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 1.18 2009/01/01 02:08:56 obrien Exp $
27 */
28
29#ifndef _SYS_ELF64_H_
30#define _SYS_ELF64_H_ 1
31
32#include <sys/elf_common.h>
33
34/*
35 * ELF definitions common to all 64-bit architectures.
36 */
37
38typedef uint64_t Elf64_Addr;
39typedef uint16_t Elf64_Half;
40typedef uint64_t Elf64_Off;
41typedef int32_t Elf64_Sword;
42typedef int64_t Elf64_Sxword;
43typedef uint32_t Elf64_Word;
44typedef uint64_t Elf64_Lword;
45typedef uint64_t Elf64_Xword;
46
47/*
48 * Types of dynamic symbol hash table bucket and chain elements.
49 *
50 * This is inconsistent among 64 bit architectures, so a machine dependent
51 * typedef is required.
52 */
53
54typedef Elf64_Word Elf64_Hashelt;
55
56/* Non-standard class-dependent datatype used for abstraction. */
57typedef Elf64_Xword Elf64_Size;
58typedef Elf64_Sxword Elf64_Ssize;
59
60/*
61 * ELF header.
62 */
63
64typedef struct {
65 unsigned char e_ident[EI_NIDENT]; /* File identification. */
66 Elf64_Half e_type; /* File type. */
67 Elf64_Half e_machine; /* Machine architecture. */
68 Elf64_Word e_version; /* ELF format version. */
69 Elf64_Addr e_entry; /* Entry point. */
70 Elf64_Off e_phoff; /* Program header file offset. */
71 Elf64_Off e_shoff; /* Section header file offset. */
72 Elf64_Word e_flags; /* Architecture-specific flags. */
73 Elf64_Half e_ehsize; /* Size of ELF header in bytes. */
74 Elf64_Half e_phentsize; /* Size of program header entry. */
75 Elf64_Half e_phnum; /* Number of program header entries. */
76 Elf64_Half e_shentsize; /* Size of section header entry. */
77 Elf64_Half e_shnum; /* Number of section header entries. */
78 Elf64_Half e_shstrndx; /* Section name strings section. */
79} Elf64_Ehdr;
80
81/*
82 * Section header.
83 */
84
85typedef struct {
86 Elf64_Word sh_name; /* Section name (index into the
87 section header string table). */
88 Elf64_Word sh_type; /* Section type. */
89 Elf64_Xword sh_flags; /* Section flags. */
90 Elf64_Addr sh_addr; /* Address in memory image. */
91 Elf64_Off sh_offset; /* Offset in file. */
92 Elf64_Xword sh_size; /* Size in bytes. */
93 Elf64_Word sh_link; /* Index of a related section. */
94 Elf64_Word sh_info; /* Depends on section type. */
95 Elf64_Xword sh_addralign; /* Alignment in bytes. */
96 Elf64_Xword sh_entsize; /* Size of each entry in section. */
97} Elf64_Shdr;
98
99/*
100 * Program header.
101 */
102
103typedef struct {
104 Elf64_Word p_type; /* Entry type. */
105 Elf64_Word p_flags; /* Access permission flags. */
106 Elf64_Off p_offset; /* File offset of contents. */
107 Elf64_Addr p_vaddr; /* Virtual address in memory image. */
108 Elf64_Addr p_paddr; /* Physical address (not used). */
109 Elf64_Xword p_filesz; /* Size of contents in file. */
110 Elf64_Xword p_memsz; /* Size of contents in memory. */
111 Elf64_Xword p_align; /* Alignment in memory and file. */
112} Elf64_Phdr;
113
114/*
115 * Dynamic structure. The ".dynamic" section contains an array of them.
116 */
117
118typedef struct {
119 Elf64_Sxword d_tag; /* Entry type. */
120 union {
121 Elf64_Xword d_val; /* Integer value. */
122 Elf64_Addr d_ptr; /* Address value. */
123 } d_un;
124} Elf64_Dyn;
125
126/*
127 * Relocation entries.
128 */
129
130/* Relocations that don't need an addend field. */
131typedef struct {
132 Elf64_Addr r_offset; /* Location to be relocated. */
133 Elf64_Xword r_info; /* Relocation type and symbol index. */
134} Elf64_Rel;
135
136/* Relocations that need an addend field. */
137typedef struct {
138 Elf64_Addr r_offset; /* Location to be relocated. */
139 Elf64_Xword r_info; /* Relocation type and symbol index. */
140 Elf64_Sxword r_addend; /* Addend. */
141} Elf64_Rela;
142
143/* Macros for accessing the fields of r_info. */
144#define ELF64_R_SYM(info) ((info) >> 32)
145#define ELF64_R_TYPE(info) ((info) & 0xffffffffL)
146
147/* Macro for constructing r_info from field values. */
148#define ELF64_R_INFO(sym, type) (((sym) << 32) + ((type) & 0xffffffffL))
149
150#define ELF64_R_TYPE_DATA(info) (((Elf64_Xword)(info)<<32)>>40)
151#define ELF64_R_TYPE_ID(info) (((Elf64_Xword)(info)<<56)>>56)
152#define ELF64_R_TYPE_INFO(data, type) \
153 (((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type))
154
155/*
156 * Note entry header
157 */
158typedef Elf_Note Elf64_Nhdr;
159
160/*
161 * Move entry
162 */
163typedef struct {
164 Elf64_Lword m_value; /* symbol value */
165 Elf64_Xword m_info; /* size + index */
166 Elf64_Xword m_poffset; /* symbol offset */
167 Elf64_Half m_repeat; /* repeat count */
168 Elf64_Half m_stride; /* stride info */
169} Elf64_Move;
170
171#define ELF64_M_SYM(info) ((info)>>8)
172#define ELF64_M_SIZE(info) ((unsigned char)(info))
173#define ELF64_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size))
174
175/*
176 * Hardware/Software capabilities entry
177 */
178typedef struct {
179 Elf64_Xword c_tag; /* how to interpret value */
180 union {
181 Elf64_Xword c_val;
182 Elf64_Addr c_ptr;
183 } c_un;
184} Elf64_Cap;
185
186/*
187 * Symbol table entries.
188 */
189
190typedef struct {
191 Elf64_Word st_name; /* String table index of name. */
192 unsigned char st_info; /* Type and binding information. */
193 unsigned char st_other; /* Reserved (not used). */
194 Elf64_Half st_shndx; /* Section index of symbol. */
195 Elf64_Addr st_value; /* Symbol value. */
196 Elf64_Xword st_size; /* Size of associated object. */
197} Elf64_Sym;
198
199/* Macros for accessing the fields of st_info. */
200#define ELF64_ST_BIND(info) ((info) >> 4)
201#define ELF64_ST_TYPE(info) ((info) & 0xf)
202
203/* Macro for constructing st_info from field values. */
204#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
205
206/* Macro for accessing the fields of st_other. */
207#define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3)
208
209/* Structures used by Sun & GNU-style symbol versioning. */
210typedef struct {
211 Elf64_Half vd_version;
212 Elf64_Half vd_flags;
213 Elf64_Half vd_ndx;
214 Elf64_Half vd_cnt;
215 Elf64_Word vd_hash;
216 Elf64_Word vd_aux;
217 Elf64_Word vd_next;
218} Elf64_Verdef;
219
220typedef struct {
221 Elf64_Word vda_name;
222 Elf64_Word vda_next;
223} Elf64_Verdaux;
224
225typedef struct {
226 Elf64_Half vn_version;
227 Elf64_Half vn_cnt;
228 Elf64_Word vn_file;
229 Elf64_Word vn_aux;
230 Elf64_Word vn_next;
231} Elf64_Verneed;
232
233typedef struct {
234 Elf64_Word vna_hash;
235 Elf64_Half vna_flags;
236 Elf64_Half vna_other;
237 Elf64_Word vna_name;
238 Elf64_Word vna_next;
239} Elf64_Vernaux;
240
241typedef Elf64_Half Elf64_Versym;
242
243typedef struct {
244 Elf64_Half si_boundto; /* direct bindings - symbol bound to */
245 Elf64_Half si_flags; /* per symbol flags */
246} Elf64_Syminfo;
247
248#endif /* !_SYS_ELF64_H_ */
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