elf.h revision d390df1dbc038843889946555c3ea53548dcab5d 
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 <bits/auxvec.h>
35#include <bits/elf_arm.h>
36#include <bits/elf_arm64.h>
37#include <bits/elf_mips.h>
38#include <bits/elf_x86.h>
39#include <bits/elf_x86_64.h>
40#include <linux/elf.h>
41#include <linux/elf-em.h>
42
43#define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))
44#define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))
45
46typedef __s64 Elf32_Sxword;
47
48typedef struct {
49  __u32 a_type;
50  union {
51    __u32 a_val;
52  } a_un;
53} Elf32_auxv_t;
54
55typedef struct {
56  __u64 a_type;
57  union {
58    __u64 a_val;
59  } a_un;
60} Elf64_auxv_t;
61
62typedef Elf32_Half Elf32_Versym;
63typedef Elf64_Half Elf64_Versym;
64
65typedef struct {
66  Elf32_Half vd_version;
67  Elf32_Half vd_flags;
68  Elf32_Half vd_ndx;
69  Elf32_Half vd_cnt;
70  Elf32_Word vd_hash;
71  Elf32_Word vd_aux;
72  Elf32_Word vd_next;
73} Elf32_Verdef;
74
75typedef struct {
76  Elf32_Word vda_name;
77  Elf32_Word vda_next;
78} Elf32_Verdaux;
79
80typedef struct {
81  Elf64_Half vd_version;
82  Elf64_Half vd_flags;
83  Elf64_Half vd_ndx;
84  Elf64_Half vd_cnt;
85  Elf64_Word vd_hash;
86  Elf64_Word vd_aux;
87  Elf64_Word vd_next;
88} Elf64_Verdef;
89
90typedef struct {
91  Elf64_Word vda_name;
92  Elf64_Word vda_next;
93} Elf64_Verdaux;
94
95typedef struct {
96  Elf32_Half vn_version;
97  Elf32_Half vn_cnt;
98  Elf32_Word vn_file;
99  Elf32_Word vn_aux;
100  Elf32_Word vn_next;
101} Elf32_Verneed;
102
103typedef struct {
104  Elf32_Word vna_hash;
105  Elf32_Half vna_flags;
106  Elf32_Half vna_other;
107  Elf32_Word vna_name;
108  Elf32_Word vna_next;
109} Elf32_Vernaux;
110
111typedef struct {
112  Elf64_Half vn_version;
113  Elf64_Half vn_cnt;
114  Elf64_Word vn_file;
115  Elf64_Word vn_aux;
116  Elf64_Word vn_next;
117} Elf64_Verneed;
118
119typedef struct {
120  Elf64_Word vna_hash;
121  Elf64_Half vna_flags;
122  Elf64_Half vna_other;
123  Elf64_Word vna_name;
124  Elf64_Word vna_next;
125} Elf64_Vernaux;
126
127#define DF_ORIGIN     0x00000001
128#define DF_SYMBOLIC   0x00000002
129#define DF_TEXTREL    0x00000004
130#define DF_BIND_NOW   0x00000008
131#define DF_STATIC_TLS 0x00000010
132
133#define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */
134#define DF_1_GLOBAL     0x00000002 /* implies RTLD_GLOBAL */
135#define DF_1_GROUP      0x00000004
136#define DF_1_NODELETE   0x00000008 /* implies RTLD_NODELETE */
137#define DF_1_LOADFLTR   0x00000010
138#define DF_1_INITFIRST  0x00000020
139#define DF_1_NOOPEN     0x00000040 /* Object can not be used with dlopen(3) */
140#define DF_1_ORIGIN     0x00000080
141#define DF_1_DIRECT     0x00000100
142#define DF_1_TRANS      0x00000200
143#define DF_1_INTERPOSE  0x00000400
144#define DF_1_NODEFLIB   0x00000800
145#define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */
146#define DF_1_CONFALT    0x00002000
147#define DF_1_ENDFILTEE  0x00004000
148#define DF_1_DISPRELDNE 0x00008000
149#define DF_1_DISPRELPND 0x00010000
150#define DF_1_NODIRECT   0x00020000
151#define DF_1_IGNMULDEF  0x00040000 /* Internal use */
152#define DF_1_NOKSYMS    0x00080000 /* Internal use */
153#define DF_1_NOHDR      0x00100000 /* Internal use */
154#define DF_1_EDITED     0x00200000
155#define DF_1_NORELOC    0x00400000 /* Internal use */
156#define DF_1_SYMINTPOSE 0x00800000
157#define DF_1_GLOBAUDIT  0x01000000
158#define DF_1_SINGLETON  0x02000000
159#define DF_1_STUB       0x04000000
160#define DF_1_PIE        0x08000000
161
162#define DT_BIND_NOW 24
163#define DT_INIT_ARRAY 25
164#define DT_FINI_ARRAY 26
165#define DT_INIT_ARRAYSZ 27
166#define DT_FINI_ARRAYSZ 28
167#define DT_RUNPATH 29
168#define DT_FLAGS 30
169/* glibc and BSD disagree for DT_ENCODING; glibc looks wrong. */
170#define DT_PREINIT_ARRAY 32
171#define DT_PREINIT_ARRAYSZ 33
172
173/* Android compressed rel/rela sections */
174#define DT_ANDROID_REL (DT_LOOS + 2)
175#define DT_ANDROID_RELSZ (DT_LOOS + 3)
176
177#define DT_ANDROID_RELA (DT_LOOS + 4)
178#define DT_ANDROID_RELASZ (DT_LOOS + 5)
179
180/* gnu hash entry */
181#define DT_GNU_HASH 0x6ffffef5
182
183#define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */
184
185#define PT_GNU_RELRO 0x6474e552
186
187#undef ELF_ST_TYPE
188#define ELF_ST_TYPE(x) ((x) & 0xf)
189#define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
190#define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t)
191#define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t)
192
193#define STB_LOOS      10
194#define STB_HIOS      12
195#define STB_LOPROC    13
196#define STB_HIPROC    15
197
198#define SHT_LOOS    0x60000000
199#define SHT_HIOS    0x6fffffff
200
201#define STT_GNU_IFUNC 10
202#define STT_LOOS      10
203#define STT_HIOS      12
204#define STT_LOPROC    13
205#define STT_HIPROC    15
206
207#define STV_DEFAULT   0
208#define STV_INTERNAL  1
209#define STV_HIDDEN    2
210#define STV_PROTECTED 3
211
212/* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */
213#define NT_FPREGSET NT_PRFPREG
214
215#define ELF_NOTE_GNU "GNU"
216
217#define NT_GNU_BUILD_ID 3
218
219#define VER_FLG_BASE 0x1
220#define VER_FLG_WEAK 0x2
221
222#define VER_NDX_LOCAL  0
223#define VER_NDX_GLOBAL 1
224
225#endif /* _ELF_H */
226