2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1996-1998 John D. Polstra.
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8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
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32 #define _SYS_ELF32_H_ 1
34 #include <sys/elf_common.h>
37 * ELF definitions common to all 32-bit architectures.
40 typedef uint32_t Elf32_Addr;
41 typedef uint16_t Elf32_Half;
42 typedef uint32_t Elf32_Off;
43 typedef int32_t Elf32_Sword;
44 typedef uint32_t Elf32_Word;
45 typedef uint64_t Elf32_Lword;
47 typedef Elf32_Word Elf32_Hashelt;
49 /* Non-standard class-dependent datatype used for abstraction. */
50 typedef Elf32_Word Elf32_Size;
51 typedef Elf32_Sword Elf32_Ssize;
58 unsigned char e_ident[EI_NIDENT]; /* File identification. */
59 Elf32_Half e_type; /* File type. */
60 Elf32_Half e_machine; /* Machine architecture. */
61 Elf32_Word e_version; /* ELF format version. */
62 Elf32_Addr e_entry; /* Entry point. */
63 Elf32_Off e_phoff; /* Program header file offset. */
64 Elf32_Off e_shoff; /* Section header file offset. */
65 Elf32_Word e_flags; /* Architecture-specific flags. */
66 Elf32_Half e_ehsize; /* Size of ELF header in bytes. */
67 Elf32_Half e_phentsize; /* Size of program header entry. */
68 Elf32_Half e_phnum; /* Number of program header entries. */
69 Elf32_Half e_shentsize; /* Size of section header entry. */
70 Elf32_Half e_shnum; /* Number of section header entries. */
71 Elf32_Half e_shstrndx; /* Section name strings section. */
75 * Shared object information, found in SHT_MIPS_LIBLIST.
79 Elf32_Word l_name; /* The name of a shared object. */
80 Elf32_Word l_time_stamp; /* 32-bit timestamp. */
81 Elf32_Word l_checksum; /* Checksum of visible symbols, sizes. */
82 Elf32_Word l_version; /* Interface version string index. */
83 Elf32_Word l_flags; /* Flags (LL_*). */
91 Elf32_Word sh_name; /* Section name (index into the
92 section header string table). */
93 Elf32_Word sh_type; /* Section type. */
94 Elf32_Word sh_flags; /* Section flags. */
95 Elf32_Addr sh_addr; /* Address in memory image. */
96 Elf32_Off sh_offset; /* Offset in file. */
97 Elf32_Word sh_size; /* Size in bytes. */
98 Elf32_Word sh_link; /* Index of a related section. */
99 Elf32_Word sh_info; /* Depends on section type. */
100 Elf32_Word sh_addralign; /* Alignment in bytes. */
101 Elf32_Word sh_entsize; /* Size of each entry in section. */
109 Elf32_Word p_type; /* Entry type. */
110 Elf32_Off p_offset; /* File offset of contents. */
111 Elf32_Addr p_vaddr; /* Virtual address in memory image. */
112 Elf32_Addr p_paddr; /* Physical address (not used). */
113 Elf32_Word p_filesz; /* Size of contents in file. */
114 Elf32_Word p_memsz; /* Size of contents in memory. */
115 Elf32_Word p_flags; /* Access permission flags. */
116 Elf32_Word p_align; /* Alignment in memory and file. */
120 * Dynamic structure. The ".dynamic" section contains an array of them.
124 Elf32_Sword d_tag; /* Entry type. */
126 Elf32_Word d_val; /* Integer value. */
127 Elf32_Addr d_ptr; /* Address value. */
132 * Relocation entries.
135 /* Relocations that don't need an addend field. */
137 Elf32_Addr r_offset; /* Location to be relocated. */
138 Elf32_Word r_info; /* Relocation type and symbol index. */
141 /* Relocations that need an addend field. */
143 Elf32_Addr r_offset; /* Location to be relocated. */
144 Elf32_Word r_info; /* Relocation type and symbol index. */
145 Elf32_Sword r_addend; /* Addend. */
148 /* Macros for accessing the fields of r_info. */
149 #define ELF32_R_SYM(info) ((info) >> 8)
150 #define ELF32_R_TYPE(info) ((unsigned char)(info))
152 /* Macro for constructing r_info from field values. */
153 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
158 typedef Elf_Note Elf32_Nhdr;
164 Elf32_Lword m_value; /* symbol value */
165 Elf32_Word m_info; /* size + index */
166 Elf32_Word m_poffset; /* symbol offset */
167 Elf32_Half m_repeat; /* repeat count */
168 Elf32_Half m_stride; /* stride info */
172 * The macros compose and decompose values for Move.r_info
174 * sym = ELF32_M_SYM(M.m_info)
175 * size = ELF32_M_SIZE(M.m_info)
176 * M.m_info = ELF32_M_INFO(sym, size)
178 #define ELF32_M_SYM(info) ((info)>>8)
179 #define ELF32_M_SIZE(info) ((unsigned char)(info))
180 #define ELF32_M_INFO(sym, size) (((sym)<<8)+(unsigned char)(size))
183 * Hardware/Software capabilities entry
186 Elf32_Word c_tag; /* how to interpret value */
194 * Symbol table entries.
198 Elf32_Word st_name; /* String table index of name. */
199 Elf32_Addr st_value; /* Symbol value. */
200 Elf32_Word st_size; /* Size of associated object. */
201 unsigned char st_info; /* Type and binding information. */
202 unsigned char st_other; /* Reserved (not used). */
203 Elf32_Half st_shndx; /* Section index of symbol. */
206 /* Macros for accessing the fields of st_info. */
207 #define ELF32_ST_BIND(info) ((info) >> 4)
208 #define ELF32_ST_TYPE(info) ((info) & 0xf)
210 /* Macro for constructing st_info from field values. */
211 #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
213 /* Macro for accessing the fields of st_other. */
214 #define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3)
216 /* Structures used by Sun & GNU symbol versioning. */
219 Elf32_Half vd_version;
236 Elf32_Half vn_version;
246 Elf32_Half vna_flags;
247 Elf32_Half vna_other;
252 typedef Elf32_Half Elf32_Versym;
255 Elf32_Half si_boundto; /* direct bindings - symbol bound to */
256 Elf32_Half si_flags; /* per symbol flags */
262 Elf32_Word ch_addralign;
265 #endif /* !_SYS_ELF32_H_ */