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#ifndef _ELF_H
29#define _ELF_H
30
31#include <linux/auxvec.h>
32#include <linux/elf.h>
33#include <linux/elf-em.h>
34
35#include <machine/elf_machdep.h>
36
37#define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))
38#define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))
39
40typedef __s64 Elf32_Sxword;
41
42typedef struct {
43  __u32 a_type;
44  union {
45    __u32 a_val;
46  } a_un;
47} Elf32_auxv_t;
48
49typedef struct {
50  __u64 a_type;
51  union {
52    __u64 a_val;
53  } a_un;
54} Elf64_auxv_t;
55
56typedef Elf32_Half Elf32_Versym;
57typedef Elf64_Half Elf64_Versym;
58
59typedef struct {
60  Elf32_Half vd_version;
61  Elf32_Half vd_flags;
62  Elf32_Half vd_ndx;
63  Elf32_Half vd_cnt;
64  Elf32_Word vd_hash;
65  Elf32_Word vd_aux;
66  Elf32_Word vd_next;
67} Elf32_Verdef;
68
69typedef struct {
70  Elf32_Word vda_name;
71  Elf32_Word vda_next;
72} Elf32_Verdaux;
73
74typedef struct {
75  Elf64_Half vd_version;
76  Elf64_Half vd_flags;
77  Elf64_Half vd_ndx;
78  Elf64_Half vd_cnt;
79  Elf64_Word vd_hash;
80  Elf64_Word vd_aux;
81  Elf64_Word vd_next;
82} Elf64_Verdef;
83
84typedef struct {
85  Elf64_Word vda_name;
86  Elf64_Word vda_next;
87} Elf64_Verdaux;
88
89typedef struct {
90  Elf32_Half vn_version;
91  Elf32_Half vn_cnt;
92  Elf32_Word vn_file;
93  Elf32_Word vn_aux;
94  Elf32_Word vn_next;
95} Elf32_Verneed;
96
97typedef struct {
98  Elf32_Word vna_hash;
99  Elf32_Half vna_flags;
100  Elf32_Half vna_other;
101  Elf32_Word vna_name;
102  Elf32_Word vna_next;
103} Elf32_Vernaux;
104
105typedef struct {
106  Elf64_Half vn_version;
107  Elf64_Half vn_cnt;
108  Elf64_Word vn_file;
109  Elf64_Word vn_aux;
110  Elf64_Word vn_next;
111} Elf64_Verneed;
112
113typedef struct {
114  Elf64_Word vna_hash;
115  Elf64_Half vna_flags;
116  Elf64_Half vna_other;
117  Elf64_Word vna_name;
118  Elf64_Word vna_next;
119} Elf64_Vernaux;
120
121#define DF_ORIGIN     0x00000001
122#define DF_SYMBOLIC   0x00000002
123#define DF_TEXTREL    0x00000004
124#define DF_BIND_NOW   0x00000008
125#define DF_STATIC_TLS 0x00000010
126
127#define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */
128#define DF_1_GLOBAL     0x00000002 /* implies RTLD_GLOBAL */
129#define DF_1_GROUP      0x00000004
130#define DF_1_NODELETE   0x00000008 /* implies RTLD_NODELETE */
131#define DF_1_LOADFLTR   0x00000010
132#define DF_1_INITFIRST  0x00000020
133#define DF_1_NOOPEN     0x00000040 /* Object can not be used with dlopen(3) */
134#define DF_1_ORIGIN     0x00000080
135#define DF_1_DIRECT     0x00000100
136#define DF_1_TRANS      0x00000200
137#define DF_1_INTERPOSE  0x00000400
138#define DF_1_NODEFLIB   0x00000800
139#define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */
140#define DF_1_CONFALT    0x00002000
141#define DF_1_ENDFILTEE  0x00004000
142#define DF_1_DISPRELDNE 0x00008000
143#define DF_1_DISPRELPND 0x00010000
144#define DF_1_NODIRECT   0x00020000
145#define DF_1_IGNMULDEF  0x00040000 /* Internal use */
146#define DF_1_NOKSYMS    0x00080000 /* Internal use */
147#define DF_1_NOHDR      0x00100000 /* Internal use */
148#define DF_1_EDITED     0x00200000
149#define DF_1_NORELOC    0x00400000 /* Internal use */
150#define DF_1_SYMINTPOSE 0x00800000
151#define DF_1_GLOBAUDIT  0x01000000
152#define DF_1_SINGLETON  0x02000000
153#define DF_1_STUB       0x04000000
154#define DF_1_PIE        0x08000000
155
156#define DT_BIND_NOW 24
157#define DT_INIT_ARRAY 25
158#define DT_FINI_ARRAY 26
159#define DT_INIT_ARRAYSZ 27
160#define DT_FINI_ARRAYSZ 28
161#define DT_RUNPATH 29
162#define DT_FLAGS 30
163/* glibc and BSD disagree for DT_ENCODING; glibc looks wrong. */
164#define DT_PREINIT_ARRAY 32
165#define DT_PREINIT_ARRAYSZ 33
166
167/* Android compressed rel/rela sections */
168#define DT_ANDROID_REL (DT_LOOS + 2)
169#define DT_ANDROID_RELSZ (DT_LOOS + 3)
170
171#define DT_ANDROID_RELA (DT_LOOS + 4)
172#define DT_ANDROID_RELASZ (DT_LOOS + 5)
173
174/* gnu hash entry */
175#define DT_GNU_HASH 0x6ffffef5
176
177#define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */
178
179#define PT_GNU_RELRO 0x6474e552
180
181#define STB_LOOS      10
182#define STB_HIOS      12
183#define STB_LOPROC    13
184#define STB_HIPROC    15
185
186#define SHT_LOOS    0x60000000
187#define SHT_HIOS    0x6fffffff
188
189#define STT_GNU_IFUNC 10
190#define STT_LOOS      10
191#define STT_HIOS      12
192#define STT_LOPROC    13
193#define STT_HIPROC    15
194
195#define STV_DEFAULT   0
196#define STV_INTERNAL  1
197#define STV_HIDDEN    2
198#define STV_PROTECTED 3
199
200/* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */
201#define NT_FPREGSET NT_PRFPREG
202
203#define ELF_NOTE_GNU "GNU"
204
205#define NT_GNU_BUILD_ID 3
206
207#define VER_FLG_BASE 0x1
208#define VER_FLG_WEAK 0x2
209
210#define VER_NDX_LOCAL  0
211#define VER_NDX_GLOBAL 1
212
213#endif /* _ELF_H */
214