1
/*    $OpenBSD: exec_elf.h,v 1.53 2014/01/03 03:00:39 guenther Exp $    */
2
/*
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 * Copyright (c) 1995, 1996 Erik Theisen.  All rights reserved.
4
 *
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 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
27

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/* imported sys/exec_elf.h from OpenBSD */
29

30
#ifndef ELF_H
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#define ELF_H
32

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#include <utils/types.h>
34

35
typedef u8 Elf_Byte;
36

37
typedef u32 Elf32_Addr; /* Unsigned program address */
38
typedef u32 Elf32_Off;  /* Unsigned file offset */
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typedef s32 Elf32_Sword; /* Signed large integer */
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typedef u32 Elf32_Word; /* Unsigned large integer */
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typedef u16 Elf32_Half; /* Unsigned medium integer */
42

43
typedef u64 Elf64_Addr;
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typedef u64 Elf64_Off;
45
typedef s32 Elf64_Shalf;
46

47
#ifdef __alpha__
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typedef s64 Elf64_Sword;
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typedef u64 Elf64_Word;
50
#else
51
typedef s32 Elf64_Sword;
52
typedef u32 Elf64_Word;
53
#endif
54

55
typedef s64 Elf64_Sxword;
56
typedef u64 Elf64_Xword;
57

58
typedef u32 Elf64_Half;
59
typedef u16 Elf64_Quarter;
60

61
/*
62
 * e_ident[] identification indexes
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 * See http://www.sco.com/developers/gabi/latest/ch4.eheader.html
64
 */
65
#define EI_MAG0 0       /* file ID */
66
#define EI_MAG1 1       /* file ID */
67
#define EI_MAG2 2       /* file ID */
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#define EI_MAG3 3       /* file ID */
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#define EI_CLASS 4      /* file class */
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#define EI_DATA 5       /* data encoding */
71
#define EI_VERSION 6    /* ELF header version */
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#define EI_OSABI 7      /* OS/ABI ID */
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#define EI_ABIVERSION 8 /* ABI version */
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#define EI_PAD 9        /* start of pad bytes */
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#define EI_NIDENT 16    /* Size of e_ident[] */
76

77
/* e_ident[] magic number */
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#define ELFMAG0 0x7f     /* e_ident[EI_MAG0] */
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#define ELFMAG1 'E'      /* e_ident[EI_MAG1] */
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#define ELFMAG2 'L'      /* e_ident[EI_MAG2] */
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#define ELFMAG3 'F'      /* e_ident[EI_MAG3] */
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#define ELFMAG "\177ELF" /* magic */
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#define SELFMAG 4        /* size of magic */
84

85
/* e_ident[] file class */
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#define ELFCLASSNONE 0 /* invalid */
87
#define ELFCLASS32 1   /* 32-bit objs */
88
#define ELFCLASS64 2   /* 64-bit objs */
89
#define ELFCLASSNUM 3  /* number of classes */
90

91
/* e_ident[] data encoding */
92
#define ELFDATANONE 0 /* invalid */
93
#define ELFDATA2LSB 1 /* Little-Endian */
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#define ELFDATA2MSB 2 /* Big-Endian */
95
#define ELFDATANUM 3  /* number of data encode defines */
96

97
/* e_ident[] Operating System/ABI */
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#define ELFOSABI_SYSV 0         /* UNIX System V ABI */
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#define ELFOSABI_HPUX 1         /* HP-UX operating system */
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#define ELFOSABI_NETBSD 2       /* NetBSD */
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#define ELFOSABI_LINUX 3        /* GNU/Linux */
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#define ELFOSABI_HURD 4         /* GNU/Hurd */
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#define ELFOSABI_86OPEN 5       /* 86Open common IA32 ABI */
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#define ELFOSABI_SOLARIS 6      /* Solaris */
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#define ELFOSABI_MONTEREY 7     /* Monterey */
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#define ELFOSABI_IRIX 8         /* IRIX */
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#define ELFOSABI_FREEBSD 9      /* FreeBSD */
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#define ELFOSABI_TRU64 10       /* TRU64 UNIX */
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#define ELFOSABI_MODESTO 11     /* Novell Modesto */
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#define ELFOSABI_OPENBSD 12     /* OpenBSD */
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#define ELFOSABI_ARM 97         /* ARM */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
113

114
/* e_ident */
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#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
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                      (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
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                      (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
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                      (ehdr).e_ident[EI_MAG3] == ELFMAG3)
119

120
/* ELF Header */
121
typedef struct
122
{
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    unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
124
    Elf32_Half e_type;                /* object file type */
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    Elf32_Half e_machine;             /* machine */
126
    Elf32_Word e_version;             /* object file version */
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    Elf32_Addr e_entry;               /* virtual entry point */
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    Elf32_Off e_phoff;                /* program header table offset */
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    Elf32_Off e_shoff;                /* section header table offset */
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    Elf32_Word e_flags;               /* processor-specific flags */
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    Elf32_Half e_ehsize;              /* ELF header size */
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    Elf32_Half e_phentsize;           /* program header entry size */
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    Elf32_Half e_phnum;               /* number of program header entries */
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    Elf32_Half e_shentsize;           /* section header entry size */
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    Elf32_Half e_shnum;               /* number of section header entries */
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    Elf32_Half e_shstrndx;            /* section header table's "section
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                                                header string table" entry offset */
138
} Elf32_Ehdr;
139

140
typedef struct
141
{
142
    unsigned char e_ident[EI_NIDENT]; /* Id bytes */
143
    Elf64_Quarter e_type;             /* file type */
144
    Elf64_Quarter e_machine;          /* machine type */
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    Elf64_Half e_version;             /* version number */
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    Elf64_Addr e_entry;               /* entry point */
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    Elf64_Off e_phoff;                /* Program hdr offset */
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    Elf64_Off e_shoff;                /* Section hdr offset */
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    Elf64_Half e_flags;               /* Processor flags */
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    Elf64_Quarter e_ehsize;           /* sizeof ehdr */
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    Elf64_Quarter e_phentsize;        /* Program header entry size */
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    Elf64_Quarter e_phnum;            /* Number of program headers */
153
    Elf64_Quarter e_shentsize;        /* Section header entry size */
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    Elf64_Quarter e_shnum;            /* Number of section headers */
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    Elf64_Quarter e_shstrndx;         /* String table index */
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} Elf64_Ehdr;
157

158
/* e_type */
159
#define ET_NONE 0        /* No file type */
160
#define ET_REL 1         /* relocatable file */
161
#define ET_EXEC 2        /* executable file */
162
#define ET_DYN 3         /* shared object file */
163
#define ET_CORE 4        /* core file */
164
#define ET_NUM 5         /* number of types */
165
#define ET_LOPROC 0xff00 /* reserved range for processor */
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#define ET_HIPROC 0xffff /*  specific e_type */
167

168
/* e_machine */
169
#define EM_NONE 0  /* No Machine */
170
#define EM_M32 1   /* AT&T WE 32100 */
171
#define EM_SPARC 2 /* SPARC */
172
#define EM_386 3   /* Intel 80386 */
173
#define EM_68K 4   /* Motorola 68000 */
174
#define EM_88K 5   /* Motorola 88000 */
175
#define EM_486 6   /* Intel 80486 - unused? */
176
#define EM_860 7   /* Intel 80860 */
177
#define EM_MIPS 8  /* MIPS R3000 Big-Endian only */
178
/*
179
 * Don't know if EM_MIPS_RS4_BE,
180
 * EM_SPARC64, EM_PARISC,
181
 * or EM_PPC are ABI compliant
182
 */
183
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
184
#define EM_SPARC64 11     /* SPARC v9 64-bit unofficial */
185
#define EM_PARISC 15      /* HPPA */
186
#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
187
#define EM_PPC 20         /* PowerPC */
188
#define EM_ARM 40         /* ARM AArch32 */
189
#define EM_ALPHA 41       /* DEC ALPHA */
190
#define EM_SH 42          /* Hitachi/Renesas Super-H */
191
#define EM_SPARCV9 43     /* SPARC version 9 */
192
#define EM_IA_64 50       /* Intel IA-64 Processor */
193
#define EM_AMD64 62       /* AMD64 architecture */
194
#define EM_VAX 75         /* DEC VAX */
195
#define EM_AARCH64 183    /* ARM AArch64 */
196

197
/* Non-standard */
198
#define EM_ALPHA_EXP 0x9026 /* DEC ALPHA */
199

200
/* Version */
201
#define EV_NONE 0    /* Invalid */
202
#define EV_CURRENT 1 /* Current */
203
#define EV_NUM 2     /* number of versions */
204

205
/* Section Header */
206
typedef struct
207
{
208
    Elf32_Word sh_name;      /* name - index into section header
209
                                 * string table section */
210
    Elf32_Word sh_type;      /* type */
211
    Elf32_Word sh_flags;     /* flags */
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    Elf32_Addr sh_addr;      /* address */
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    Elf32_Off sh_offset;     /* file offset */
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    Elf32_Word sh_size;      /* section size */
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    Elf32_Word sh_link;      /* section header table index link */
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    Elf32_Word sh_info;      /* extra information */
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    Elf32_Word sh_addralign; /* address alignment */
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    Elf32_Word sh_entsize;   /* section entry size */
219
} Elf32_Shdr;
220

221
typedef struct
222
{
223
    Elf64_Half sh_name;       /* section name */
224
    Elf64_Half sh_type;       /* section type */
225
    Elf64_Xword sh_flags;     /* section flags */
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    Elf64_Addr sh_addr;       /* virtual address */
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    Elf64_Off sh_offset;      /* file offset */
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    Elf64_Xword sh_size;      /* section size */
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    Elf64_Half sh_link;       /* link to another */
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    Elf64_Half sh_info;       /* misc info */
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    Elf64_Xword sh_addralign; /* memory alignment */
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    Elf64_Xword sh_entsize;   /* table entry size */
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} Elf64_Shdr;
234

235
/* Special Section Indexes */
236
#define SHN_UNDEF 0          /* undefined */
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#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
238
#define SHN_LOPROC 0xff00    /* reserved range for processor */
239
#define SHN_HIPROC 0xff1f    /*   specific section indexes */
240
#define SHN_ABS 0xfff1       /* absolute value */
241
#define SHN_COMMON 0xfff2    /* common symbol */
242
#define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
243

244
/* sh_type */
245
#define SHT_NULL 0            /* inactive */
246
#define SHT_PROGBITS 1        /* program defined information */
247
#define SHT_SYMTAB 2          /* symbol table section */
248
#define SHT_STRTAB 3          /* string table section */
249
#define SHT_RELA 4            /* relocation section with addends*/
250
#define SHT_HASH 5            /* symbol hash table section */
251
#define SHT_DYNAMIC 6         /* dynamic section */
252
#define SHT_NOTE 7            /* note section */
253
#define SHT_NOBITS 8          /* no space section */
254
#define SHT_REL 9             /* relation section without addends */
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#define SHT_SHLIB 10          /* reserved - purpose unknown */
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#define SHT_DYNSYM 11         /* dynamic symbol table section */
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#define SHT_NUM 12            /* number of section types */
258
#define SHT_LOPROC 0x70000000 /* reserved range for processor */
259
#define SHT_HIPROC 0x7fffffff /*  specific section header types */
260
#define SHT_LOUSER 0x80000000 /* reserved range for application */
261
#define SHT_HIUSER 0xffffffff /*  specific indexes */
262

263
/* Section names */
264
#define ELF_BSS ".bss"               /* uninitialized data */
265
#define ELF_DATA ".data"             /* initialized data */
266
#define ELF_DEBUG ".debug"           /* debug */
267
#define ELF_DYNAMIC ".dynamic"       /* dynamic linking information */
268
#define ELF_DYNSTR ".dynstr"         /* dynamic string table */
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#define ELF_DYNSYM ".dynsym"         /* dynamic symbol table */
270
#define ELF_FINI ".fini"             /* termination code */
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#define ELF_GOT ".got"               /* global offset table */
272
#define ELF_HASH ".hash"             /* symbol hash table */
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#define ELF_INIT ".init"             /* initialization code */
274
#define ELF_REL_DATA ".rel.data"     /* relocation data */
275
#define ELF_REL_FINI ".rel.fini"     /* relocation termination code */
276
#define ELF_REL_INIT ".rel.init"     /* relocation initialization code */
277
#define ELF_REL_DYN ".rel.dyn"       /* relocation dynamic link info */
278
#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
279
#define ELF_REL_TEXT ".rel.text"     /* relocation code */
280
#define ELF_RODATA ".rodata"         /* read-only data */
281
#define ELF_SHSTRTAB ".shstrtab"     /* section header string table */
282
#define ELF_STRTAB ".strtab"         /* string table */
283
#define ELF_SYMTAB ".symtab"         /* symbol table */
284
#define ELF_TEXT ".text"             /* code */
285

286
/* Section Attribute Flags - sh_flags */
287
#define SHF_WRITE 0x1           /* Writable */
288
#define SHF_ALLOC 0x2           /* occupies memory */
289
#define SHF_EXECINSTR 0x4       /* executable */
290
#define SHF_TLS 0x400           /* thread local storage */
291
#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor \
292
                                 *  specific section attributes */
293

294
/* Symbol Table Entry */
295
typedef struct elf32_sym
296
{
297
    Elf32_Word st_name;     /* name - index into string table */
298
    Elf32_Addr st_value;    /* symbol value */
299
    Elf32_Word st_size;     /* symbol size */
300
    unsigned char st_info;  /* type and binding */
301
    unsigned char st_other; /* 0 - no defined meaning */
302
    Elf32_Half st_shndx;    /* section header index */
303
} Elf32_Sym;
304

305
typedef struct
306
{
307
    Elf64_Half st_name;     /* Symbol name index in str table */
308
    Elf_Byte st_info;       /* type / binding attrs */
309
    Elf_Byte st_other;      /* unused */
310
    Elf64_Quarter st_shndx; /* section index of symbol */
311
    Elf64_Xword st_value;   /* value of symbol */
312
    Elf64_Xword st_size;    /* size of symbol */
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} Elf64_Sym;
314

315
/* Symbol table index */
316
#define STN_UNDEF 0 /* undefined */
317

318
/* Extract symbol info - st_info */
319
#define ELF32_ST_BIND(x) ((x) >> 4)
320
#define ELF32_ST_TYPE(x) (((unsigned int)x) & 0xf)
321
#define ELF32_ST_INFO(b, t) (((b) << 4) + ((t)&0xf))
322

323
#define ELF64_ST_BIND(x) ((x) >> 4)
324
#define ELF64_ST_TYPE(x) (((unsigned int)x) & 0xf)
325
#define ELF64_ST_INFO(b, t) (((b) << 4) + ((t)&0xf))
326

327
/* Symbol Binding - ELF32_ST_BIND - st_info */
328
#define STB_LOCAL 0   /* Local symbol */
329
#define STB_GLOBAL 1  /* Global symbol */
330
#define STB_WEAK 2    /* like global - lower precedence */
331
#define STB_NUM 3     /* number of symbol bindings */
332
#define STB_LOPROC 13 /* reserved range for processor */
333
#define STB_HIPROC 15 /*  specific symbol bindings */
334

335
/* Symbol type - ELF32_ST_TYPE - st_info */
336
#define STT_NOTYPE 0  /* not specified */
337
#define STT_OBJECT 1  /* data object */
338
#define STT_FUNC 2    /* function */
339
#define STT_SECTION 3 /* section */
340
#define STT_FILE 4    /* file */
341
#define STT_TLS 6     /* thread local storage */
342
#define STT_LOPROC 13 /* reserved range for processor */
343
#define STT_HIPROC 15 /*  specific symbol types */
344

345
/* Relocation entry with implicit addend */
346
typedef struct
347
{
348
    Elf32_Addr r_offset; /* offset of relocation */
349
    Elf32_Word r_info;   /* symbol table index and type */
350
} Elf32_Rel;
351

352
/* Relocation entry with explicit addend */
353
typedef struct
354
{
355
    Elf32_Addr r_offset; /* offset of relocation */
356
    Elf32_Word r_info;   /* symbol table index and type */
357
    Elf32_Sword r_addend;
358
} Elf32_Rela;
359

360
/* Extract relocation info - r_info */
361
#define ELF32_R_SYM(i) ((i) >> 8)
362
#define ELF32_R_TYPE(i) ((unsigned char)(i))
363
#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t))
364

365
typedef struct
366
{
367
    Elf64_Xword r_offset; /* where to do it */
368
    Elf64_Xword r_info;   /* index & type of relocation */
369
} Elf64_Rel;
370

371
typedef struct
372
{
373
    Elf64_Xword r_offset;  /* where to do it */
374
    Elf64_Xword r_info;    /* index & type of relocation */
375
    Elf64_Sxword r_addend; /* adjustment value */
376
} Elf64_Rela;
377

378
#define ELF64_R_SYM(info) ((info) >> 32)
379
#define ELF64_R_TYPE(info) ((info)&0xFFFFFFFF)
380
#define ELF64_R_INFO(s, t) (((s) << 32) + (u32)(t))
381

382
#if defined(__mips64__) && defined(__MIPSEL__)
383
/*
384
 * The 64-bit MIPS ELF ABI uses a slightly different relocation format
385
 * than the regular ELF ABI: the r_info field is split into several
386
 * pieces (see gnu/usr.bin/binutils/include/elf/mips.h for details).
387
 */
388
#undef ELF64_R_SYM
389
#undef ELF64_R_TYPE
390
#undef ELF64_R_INFO
391
#define ELF64_R_TYPE(info) (swap32((info) >> 32))
392
#define ELF64_R_SYM(info) ((info)&0xFFFFFFFF)
393
#define ELF64_R_INFO(s, t) (((u64)swap32(t) << 32) + (u32)(s))
394
#endif /* __mips64__ && __MIPSEL__ */
395

396
/* Program Header */
397
typedef struct
398
{
399
    Elf32_Word p_type;   /* segment type */
400
    Elf32_Off p_offset;  /* segment offset */
401
    Elf32_Addr p_vaddr;  /* virtual address of segment */
402
    Elf32_Addr p_paddr;  /* physical address - ignored? */
403
    Elf32_Word p_filesz; /* number of bytes in file for seg. */
404
    Elf32_Word p_memsz;  /* number of bytes in mem. for seg. */
405
    Elf32_Word p_flags;  /* flags */
406
    Elf32_Word p_align;  /* memory alignment */
407
} Elf32_Phdr;
408

409
typedef struct
410
{
411
    Elf64_Half p_type;    /* entry type */
412
    Elf64_Half p_flags;   /* flags */
413
    Elf64_Off p_offset;   /* offset */
414
    Elf64_Addr p_vaddr;   /* virtual address */
415
    Elf64_Addr p_paddr;   /* physical address */
416
    Elf64_Xword p_filesz; /* file size */
417
    Elf64_Xword p_memsz;  /* memory size */
418
    Elf64_Xword p_align;  /* memory & file alignment */
419
} Elf64_Phdr;
420

421
/* Segment types - p_type */
422
#define PT_NULL 0            /* unused */
423
#define PT_LOAD 1            /* loadable segment */
424
#define PT_DYNAMIC 2         /* dynamic linking section */
425
#define PT_INTERP 3          /* the RTLD */
426
#define PT_NOTE 4            /* auxiliary information */
427
#define PT_SHLIB 5           /* reserved - purpose undefined */
428
#define PT_PHDR 6            /* program header */
429
#define PT_TLS 7             /* thread local storage */
430
#define PT_LOOS 0x60000000   /* reserved range for OS */
431
#define PT_HIOS 0x6fffffff   /*  specific segment types */
432
#define PT_LOPROC 0x70000000 /* reserved range for processor */
433
#define PT_HIPROC 0x7fffffff /*  specific segment types */
434

435
#define PT_OPENBSD_RANDOMIZE 0x65a3dbe6 /* fill with random data */
436
#define PT_GANDR_KERNEL 0x67646b6c      /* gdkl */
437

438
/* Segment flags - p_flags */
439
#define PF_X 0x1               /* Executable */
440
#define PF_W 0x2               /* Writable */
441
#define PF_R 0x4               /* Readable */
442
#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
443
                               /*  specific segment flags */
444

445
/* Dynamic structure */
446
typedef struct
447
{
448
    Elf32_Word d_tag; /* controls meaning of d_val */
449
    union {
450
        Elf32_Word d_val; /* Multiple meanings - see d_tag */
451
        Elf32_Addr d_ptr; /* program virtual address */
452
    } d_un;
453
} Elf32_Dyn;
454

455
typedef struct
456
{
457
    Elf64_Xword d_tag; /* controls meaning of d_val */
458
    union {
459
        Elf64_Addr d_ptr;
460
        Elf64_Xword d_val;
461
    } d_un;
462
} Elf64_Dyn;
463

464
/* Dynamic Array Tags - d_tag */
465
#define DT_NULL 0            /* marks end of _DYNAMIC array */
466
#define DT_NEEDED 1          /* string table offset of needed lib */
467
#define DT_PLTRELSZ 2        /* size of relocation entries in PLT */
468
#define DT_PLTGOT 3          /* address PLT/GOT */
469
#define DT_HASH 4            /* address of symbol hash table */
470
#define DT_STRTAB 5          /* address of string table */
471
#define DT_SYMTAB 6          /* address of symbol table */
472
#define DT_RELA 7            /* address of relocation table */
473
#define DT_RELASZ 8          /* size of relocation table */
474
#define DT_RELAENT 9         /* size of relocation entry */
475
#define DT_STRSZ 10          /* size of string table */
476
#define DT_SYMENT 11         /* size of symbol table entry */
477
#define DT_INIT 12           /* address of initialization func. */
478
#define DT_FINI 13           /* address of termination function */
479
#define DT_SONAME 14         /* string table offset of shared obj */
480
#define DT_RPATH 15          /* string table offset of library \
481
                              * search path */
482
#define DT_SYMBOLIC 16       /* start sym search in shared obj. */
483
#define DT_REL 17            /* address of rel. tbl. w addends */
484
#define DT_RELSZ 18          /* size of DT_REL relocation table */
485
#define DT_RELENT 19         /* size of DT_REL relocation entry */
486
#define DT_PLTREL 20         /* PLT referenced relocation entry */
487
#define DT_DEBUG 21          /* bugger */
488
#define DT_TEXTREL 22        /* Allow rel. mod. to unwritable seg */
489
#define DT_JMPREL 23         /* add. of PLT's relocation entries */
490
#define DT_BIND_NOW 24       /* Bind now regardless of env setting */
491
#define DT_LOOS 0x6000000d   /* reserved range for OS */
492
#define DT_HIOS 0x6ffff000   /*  specific dynamic array tags */
493
#define DT_LOPROC 0x70000000 /* reserved range for processor */
494
#define DT_HIPROC 0x7fffffff /*  specific dynamic array tags */
495

496
/* some other useful tags */
497
#define DT_RELACOUNT 0x6ffffff9 /* if present, number of RELATIVE */
498
#define DT_RELCOUNT 0x6ffffffa  /* relocs, which must come first */
499
#define DT_FLAGS_1 0x6ffffffb
500

501
/* Dynamic Flags - DT_FLAGS_1 .dynamic entry */
502
#define DF_1_NOW 0x00000001
503
#define DF_1_GLOBAL 0x00000002
504
#define DF_1_GROUP 0x00000004
505
#define DF_1_NODELETE 0x00000008
506
#define DF_1_LOADFLTR 0x00000010
507
#define DF_1_INITFIRST 0x00000020
508
#define DF_1_NOOPEN 0x00000040
509
#define DF_1_ORIGIN 0x00000080
510
#define DF_1_DIRECT 0x00000100
511
#define DF_1_TRANS 0x00000200
512
#define DF_1_INTERPOSE 0x00000400
513
#define DF_1_NODEFLIB 0x00000800
514
#define DF_1_NODUMP 0x00001000
515
#define DF_1_CONLFAT 0x00002000
516

517
/* ld.so: number of low tags that are used saved internally (0 .. DT_NUM-1) */
518
#define DT_NUM (DT_JMPREL + 1)
519

520
/*
521
 * Note Definitions
522
 */
523
typedef struct
524
{
525
    Elf32_Word namesz;
526
    Elf32_Word descsz;
527
    Elf32_Word type;
528
} Elf32_Note;
529

530
typedef struct
531
{
532
    Elf64_Half namesz;
533
    Elf64_Half descsz;
534
    Elf64_Half type;
535
} Elf64_Note;
536

537
#if defined(ELFSIZE) && (ELFSIZE == 32)
538
#define Elf_Ehdr Elf32_Ehdr
539
#define Elf_Phdr Elf32_Phdr
540
#define Elf_Shdr Elf32_Shdr
541
#define Elf_Sym Elf32_Sym
542
#define Elf_Rel Elf32_Rel
543
#define Elf_RelA Elf32_Rela
544
#define Elf_Dyn Elf32_Dyn
545
#define Elf_Half Elf32_Half
546
#define Elf_Word Elf32_Word
547
#define Elf_Sword Elf32_Sword
548
#define Elf_Addr Elf32_Addr
549
#define Elf_Off Elf32_Off
550
#define Elf_Nhdr Elf32_Nhdr
551
#define Elf_Note Elf32_Note
552

553
#define ELF_R_SYM ELF32_R_SYM
554
#define ELF_R_TYPE ELF32_R_TYPE
555
#define ELF_R_INFO ELF32_R_INFO
556
#define ELFCLASS ELFCLASS32
557

558
#define ELF_ST_BIND ELF32_ST_BIND
559
#define ELF_ST_TYPE ELF32_ST_TYPE
560
#define ELF_ST_INFO ELF32_ST_INFO
561

562
#elif defined(ELFSIZE) && (ELFSIZE == 64)
563

564
#define Elf_Ehdr Elf64_Ehdr
565
#define Elf_Phdr Elf64_Phdr
566
#define Elf_Shdr Elf64_Shdr
567
#define Elf_Sym Elf64_Sym
568
#define Elf_Rel Elf64_Rel
569
#define Elf_RelA Elf64_Rela
570
#define Elf_Dyn Elf64_Dyn
571
#define Elf_Half Elf64_Half
572
#define Elf_Word Elf64_Word
573
#define Elf_Sword Elf64_Sword
574
#define Elf_Addr Elf64_Addr
575
#define Elf_Off Elf64_Off
576
#define Elf_Nhdr Elf64_Nhdr
577
#define Elf_Note Elf64_Note
578

579
#define ELF_R_SYM ELF64_R_SYM
580
#define ELF_R_TYPE ELF64_R_TYPE
581
#define ELF_R_INFO ELF64_R_INFO
582
#define ELFCLASS ELFCLASS64
583

584
#define ELF_ST_BIND ELF64_ST_BIND
585
#define ELF_ST_TYPE ELF64_ST_TYPE
586
#define ELF_ST_INFO ELF64_ST_INFO
587

588
#endif
589

590
#endif
591

592