elf.h revision 16016df79f846d6d21266c3b1dce1e7c24dc4be1 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
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 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _ELF_H
30#define _ELF_H
31
32#include <sys/cdefs.h>
33
34#include <linux/auxvec.h>
35#include <linux/elf.h>
36#include <linux/elf-em.h>
37#include <machine/elf_machdep.h>
38
39#define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))
40#define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))
41
42typedef __s64 Elf32_Sxword;
43
44typedef struct {
45  __u32 a_type;
46  union {
47    __u32 a_val;
48  } a_un;
49} Elf32_auxv_t;
50
51typedef struct {
52  __u64 a_type;
53  union {
54    __u64 a_val;
55  } a_un;
56} Elf64_auxv_t;
57
58typedef Elf32_Half Elf32_Versym;
59typedef Elf64_Half Elf64_Versym;
60
61typedef struct {
62  Elf32_Half vd_version;
63  Elf32_Half vd_flags;
64  Elf32_Half vd_ndx;
65  Elf32_Half vd_cnt;
66  Elf32_Word vd_hash;
67  Elf32_Word vd_aux;
68  Elf32_Word vd_next;
69} Elf32_Verdef;
70
71typedef struct {
72  Elf32_Word vda_name;
73  Elf32_Word vda_next;
74} Elf32_Verdaux;
75
76typedef struct {
77  Elf64_Half vd_version;
78  Elf64_Half vd_flags;
79  Elf64_Half vd_ndx;
80  Elf64_Half vd_cnt;
81  Elf64_Word vd_hash;
82  Elf64_Word vd_aux;
83  Elf64_Word vd_next;
84} Elf64_Verdef;
85
86typedef struct {
87  Elf64_Word vda_name;
88  Elf64_Word vda_next;
89} Elf64_Verdaux;
90
91typedef struct {
92  Elf32_Half vn_version;
93  Elf32_Half vn_cnt;
94  Elf32_Word vn_file;
95  Elf32_Word vn_aux;
96  Elf32_Word vn_next;
97} Elf32_Verneed;
98
99typedef struct {
100  Elf32_Word vna_hash;
101  Elf32_Half vna_flags;
102  Elf32_Half vna_other;
103  Elf32_Word vna_name;
104  Elf32_Word vna_next;
105} Elf32_Vernaux;
106
107typedef struct {
108  Elf64_Half vn_version;
109  Elf64_Half vn_cnt;
110  Elf64_Word vn_file;
111  Elf64_Word vn_aux;
112  Elf64_Word vn_next;
113} Elf64_Verneed;
114
115typedef struct {
116  Elf64_Word vna_hash;
117  Elf64_Half vna_flags;
118  Elf64_Half vna_other;
119  Elf64_Word vna_name;
120  Elf64_Word vna_next;
121} Elf64_Vernaux;
122
123#define DF_ORIGIN     0x00000001
124#define DF_SYMBOLIC   0x00000002
125#define DF_TEXTREL    0x00000004
126#define DF_BIND_NOW   0x00000008
127#define DF_STATIC_TLS 0x00000010
128
129#define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */
130#define DF_1_GLOBAL     0x00000002 /* implies RTLD_GLOBAL */
131#define DF_1_GROUP      0x00000004
132#define DF_1_NODELETE   0x00000008 /* implies RTLD_NODELETE */
133#define DF_1_LOADFLTR   0x00000010
134#define DF_1_INITFIRST  0x00000020
135#define DF_1_NOOPEN     0x00000040 /* Object can not be used with dlopen(3) */
136#define DF_1_ORIGIN     0x00000080
137#define DF_1_DIRECT     0x00000100
138#define DF_1_TRANS      0x00000200
139#define DF_1_INTERPOSE  0x00000400
140#define DF_1_NODEFLIB   0x00000800
141#define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */
142#define DF_1_CONFALT    0x00002000
143#define DF_1_ENDFILTEE  0x00004000
144#define DF_1_DISPRELDNE 0x00008000
145#define DF_1_DISPRELPND 0x00010000
146#define DF_1_NODIRECT   0x00020000
147#define DF_1_IGNMULDEF  0x00040000 /* Internal use */
148#define DF_1_NOKSYMS    0x00080000 /* Internal use */
149#define DF_1_NOHDR      0x00100000 /* Internal use */
150#define DF_1_EDITED     0x00200000
151#define DF_1_NORELOC    0x00400000 /* Internal use */
152#define DF_1_SYMINTPOSE 0x00800000
153#define DF_1_GLOBAUDIT  0x01000000
154#define DF_1_SINGLETON  0x02000000
155#define DF_1_STUB       0x04000000
156#define DF_1_PIE        0x08000000
157
158#define DT_BIND_NOW 24
159#define DT_INIT_ARRAY 25
160#define DT_FINI_ARRAY 26
161#define DT_INIT_ARRAYSZ 27
162#define DT_FINI_ARRAYSZ 28
163#define DT_RUNPATH 29
164#define DT_FLAGS 30
165/* glibc and BSD disagree for DT_ENCODING; glibc looks wrong. */
166#define DT_PREINIT_ARRAY 32
167#define DT_PREINIT_ARRAYSZ 33
168
169/* Android compressed rel/rela sections */
170#define DT_ANDROID_REL (DT_LOOS + 2)
171#define DT_ANDROID_RELSZ (DT_LOOS + 3)
172
173#define DT_ANDROID_RELA (DT_LOOS + 4)
174#define DT_ANDROID_RELASZ (DT_LOOS + 5)
175
176/* gnu hash entry */
177#define DT_GNU_HASH 0x6ffffef5
178
179#define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */
180
181#define PT_GNU_RELRO 0x6474e552
182
183#define STB_LOOS      10
184#define STB_HIOS      12
185#define STB_LOPROC    13
186#define STB_HIPROC    15
187
188#define SHT_LOOS    0x60000000
189#define SHT_HIOS    0x6fffffff
190
191#define STT_GNU_IFUNC 10
192#define STT_LOOS      10
193#define STT_HIOS      12
194#define STT_LOPROC    13
195#define STT_HIPROC    15
196
197#define STV_DEFAULT   0
198#define STV_INTERNAL  1
199#define STV_HIDDEN    2
200#define STV_PROTECTED 3
201
202/* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */
203#define NT_FPREGSET NT_PRFPREG
204
205#define ELF_NOTE_GNU "GNU"
206
207#define NT_GNU_BUILD_ID 3
208
209#define VER_FLG_BASE 0x1
210#define VER_FLG_WEAK 0x2
211
212#define VER_NDX_LOCAL  0
213#define VER_NDX_GLOBAL 1
214
215#endif /* _ELF_H */
216