2 * Copyright (c) 1998 John D. Polstra.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/sys/elf_common.h,v 1.5.2.3 2001/02/28 02:30:46 obrien Exp $
27 * $DragonFly: src/sys/sys/elf_common.h,v 1.7 2005/07/13 18:06:21 asmodai Exp $
30 #ifndef _SYS_ELF_COMMON_H_
31 #define _SYS_ELF_COMMON_H_ 1
34 * ELF definitions that are independent of architecture or word size.
38 * Note header. The ".note" section contains an array of notes. Each
39 * begins with this header, aligned to a word boundary. Immediately
40 * following the note header is n_namesz bytes of name, padded to the
41 * next word boundary. Then comes n_descsz bytes of descriptor, again
42 * padded to a word boundary. The values of n_namesz and n_descsz do
43 * not include the padding.
47 u_int32_t n_namesz; /* Length of name. */
48 u_int32_t n_descsz; /* Length of descriptor. */
49 u_int32_t n_type; /* Type of this note. */
52 /* Indexes into the e_ident array. Keep synced with
53 http://www.sco.com/developer/gabi/ch4.eheader.html */
54 #define EI_MAG0 0 /* Magic number, byte 0. */
55 #define EI_MAG1 1 /* Magic number, byte 1. */
56 #define EI_MAG2 2 /* Magic number, byte 2. */
57 #define EI_MAG3 3 /* Magic number, byte 3. */
58 #define EI_CLASS 4 /* Class of machine. */
59 #define EI_DATA 5 /* Data format. */
60 #define EI_VERSION 6 /* ELF format version. */
61 #define EI_OSABI 7 /* Operating system / ABI identification */
62 #define EI_ABIVERSION 8 /* ABI version */
63 #define OLD_EI_BRAND 8 /* Start of architecture identification. */
64 #define EI_PAD 9 /* Start of padding (per SVR4 ABI). */
65 #define EI_NIDENT 16 /* Size of e_ident array. */
67 /* Values for the magic number bytes. */
73 /* Values for e_ident[EI_VERSION] and e_version. */
77 /* Values for e_ident[EI_CLASS]. */
78 #define ELFCLASSNONE 0 /* Unknown class. */
79 #define ELFCLASS32 1 /* 32-bit architecture. */
80 #define ELFCLASS64 2 /* 64-bit architecture. */
82 /* Values for e_ident[EI_DATA]. */
83 #define ELFDATANONE 0 /* Unknown data format. */
84 #define ELFDATA2LSB 1 /* 2's complement little-endian. */
85 #define ELFDATA2MSB 2 /* 2's complement big-endian. */
87 /* Values for e_ident[EI_OSABI]. */
88 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
89 #define ELFOSABI_NONE ELFOSABI_SYSV /* symbol used in old spec */
90 #define ELFOSABI_HPUX 1 /* HP-UX operating system */
91 #define ELFOSABI_NETBSD 2 /* NetBSD */
92 #define ELFOSABI_LINUX 3 /* GNU/Linux */
93 #define ELFOSABI_HURD 4 /* GNU/Hurd */
94 #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
95 #define ELFOSABI_SOLARIS 6 /* Solaris */
96 #define ELFOSABI_MONTEREY 7 /* Monterey */
97 #define ELFOSABI_IRIX 8 /* IRIX */
98 #define ELFOSABI_FREEBSD 9 /* FreeBSD */
99 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
100 #define ELFOSABI_MODESTO 11 /* Novell Modesto */
101 #define ELFOSABI_OPENBSD 12 /* OpenBSD */
102 #define ELFOSABI_ARM 97 /* ARM */
103 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
106 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
107 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
108 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
109 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
111 /* Values for e_type. */
112 #define ET_NONE 0 /* Unknown type. */
113 #define ET_REL 1 /* Relocatable. */
114 #define ET_EXEC 2 /* Executable. */
115 #define ET_DYN 3 /* Shared object. */
116 #define ET_CORE 4 /* Core file. */
117 #define ET_LOOS 0xfe00 /* OS-specific range start. */
118 #define ET_HIOS 0xfeff /* OS-specific range end. */
119 #define ET_LIPROC 0xff00 /* Processor-specific range start. */
120 #define ET_HIPROC 0xffff /* Processor-specific range end. */
122 /* Values for e_machine. */
123 #define EM_NONE 0 /* Unknown machine. */
124 #define EM_M32 1 /* AT&T WE32100. */
125 #define EM_SPARC 2 /* Sun SPARC. */
126 #define EM_386 3 /* Intel i386. */
127 #define EM_68K 4 /* Motorola 68000. */
128 #define EM_88K 5 /* Motorola 88000. */
129 #define EM_486 6 /* Intel i486. */
130 #define EM_860 7 /* Intel i860. */
131 #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
134 #define EM_S370 9 /* IBM System/370 */
135 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ /* Depreciated */
136 #define EM_PARISC 15 /* HPPA */
137 #define EM_VPP500 17 /* Fujitsu VPP500 */
138 #define EM_SPARC32PLUS 18 /* SPARC v8plus */
139 #define EM_960 19 /* Intel 80960 */
140 #define EM_PPC 20 /* PowerPC 32-bit */
141 #define EM_PPC64 21 /* PowerPC 64-bit */
142 #define EM_S390 22 /* IBM S390 */
143 #define EM_V800 36 /* NEC V800 series */
144 #define EM_FR20 37 /* Fujitsu FR20 */
145 #define EM_RH32 38 /* TRW RH-32 */
146 #define EM_RCE 39 /* Motorola RCE */
147 #define EM_ARM 40 /* ARM */
148 #define EM_SH 42 /* Hitachi SH */
149 #define EM_SPARCV9 43 /* SPARC v9 64-bit */
150 #define EM_TRICORE 44 /* Siemens Tricore */
151 #define EM_ARC 45 /* Argonaut RISC Core */
152 #define EM_H8_300 46 /* Hitachi H8/300 */
153 #define EM_H8_300H 47 /* Hitachi H8/300H */
154 #define EM_H8S 48 /* Hitachi H8S */
155 #define EM_H8_500 49 /* Hitachi H8/500 */
156 #define EM_IA_64 50 /* Intel IA-46 Processor */
157 #define EM_MIPS_X 51 /* Stanford MIPS-X */
158 #define EM_COLDFIRE 52 /* Motorola Coldfire */
159 #define EM_68HC12 53 /* Motorola M68HC12 */
160 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
161 #define EM_PCP 55 /* Siemens PCP */
162 #define EM_NCPU 56 /* Sony nCPU embeeded RISC */
163 #define EM_NDR1 57 /* Denso NDR1 microprocessor */
164 #define EM_STARCORE 58 /* Motorola Start*Core processor */
165 #define EM_ME16 59 /* Toyota ME16 processor */
166 #define EM_ST100 60 /* STMicroelectronic ST100 processor */
167 #define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
168 #define EM_X86_64 62 /* Advanced Micro Devices x86-64 */
169 #define EM_PDSP 63 /* Sony DSP Processor */
170 #define EM_FX66 66 /* Siemens FX66 microcontroller */
171 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
172 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
173 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
174 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
175 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
176 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
177 #define EM_SVX 73 /* Silicon Graphics SVx */
178 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
179 #define EM_VAX 75 /* Digital VAX */
180 #define EM_CRIS 76 /* Axis Comm. 32-bit embedded processor */
181 #define EM_JAVELIN 77 /* Infineon Tech. 32-bit embedded processor */
182 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
183 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
184 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit proc */
185 #define EM_HUANY 81 /* Harvard Uni. machine-independent obj files */
186 #define EM_PRISM 82 /* SiTera Prism */
187 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
188 #define EM_FR30 84 /* Fujitsu FR30 */
189 #define EM_D10V 85 /* Mitsubishi D10V */
190 #define EM_D30V 86 /* Mitsubishi D30V */
191 #define EM_V850 87 /* NEC v850 */
192 #define EM_M32R 88 /* Mitsubishi M32R */
193 #define EM_MN10300 89 /* Matsushita MN10300 */
194 #define EM_MN10200 90 /* Matsushita MN10200 */
195 #define EM_PJ 91 /* picoJava */
196 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
197 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
198 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
200 #define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI */
202 /* Special section indexes. */
203 #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */
204 #define SHN_LORESERVE 0xff00 /* First of reserved range. */
205 #define SHN_LOPROC 0xff00 /* First processor-specific. */
206 #define SHN_HIPROC 0xff1f /* Last processor-specific. */
207 #define SHN_ABS 0xfff1 /* Absolute values. */
208 #define SHN_COMMON 0xfff2 /* Common data. */
209 #define SHN_HIRESERVE 0xffff /* Last of reserved range. */
212 #define SHT_NULL 0 /* inactive */
213 #define SHT_PROGBITS 1 /* program defined information */
214 #define SHT_SYMTAB 2 /* symbol table section */
215 #define SHT_STRTAB 3 /* string table section */
216 #define SHT_RELA 4 /* relocation section with addends*/
217 #define SHT_HASH 5 /* symbol hash table section */
218 #define SHT_DYNAMIC 6 /* dynamic section */
219 #define SHT_NOTE 7 /* note section */
220 #define SHT_NOBITS 8 /* no space section */
221 #define SHT_REL 9 /* relation section without addends */
222 #define SHT_SHLIB 10 /* reserved - purpose unknown */
223 #define SHT_DYNSYM 11 /* dynamic symbol table section */
224 #define SHT_NUM 12 /* number of section types */
225 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */
226 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */
227 #define SHT_LOPROC 0x70000000 /* reserved range for processor */
228 #define SHT_HIPROC 0x7fffffff /* specific section header types */
229 #define SHT_LOUSER 0x80000000 /* reserved range for application */
230 #define SHT_HIUSER 0xffffffff /* specific indexes */
232 /* Flags for sh_flags. */
233 #define SHF_WRITE 0x1 /* Section contains writable data. */
234 #define SHF_ALLOC 0x2 /* Section occupies memory. */
235 #define SHF_EXECINSTR 0x4 /* Section contains instructions. */
236 #define SHF_TLS 0x400 /* Section contains TLS data. */
237 #define SHF_MASKPROC 0xf0000000 /* Reserved for processor-specific. */
239 /* Values for p_type. */
240 #define PT_NULL 0 /* Unused entry. */
241 #define PT_LOAD 1 /* Loadable segment. */
242 #define PT_DYNAMIC 2 /* Dynamic linking information segment. */
243 #define PT_INTERP 3 /* Pathname of interpreter. */
244 #define PT_NOTE 4 /* Auxiliary information. */
245 #define PT_SHLIB 5 /* Reserved (not used). */
246 #define PT_PHDR 6 /* Location of program header itself. */
247 #define PT_TLS 7 /* Thread local storage segment */
249 #define PT_COUNT 8 /* Number of defined p_type values. */
251 #define PT_LOOS 0x60000000 /* OS-specific */
252 #define PT_HIOS 0x6fffffff /* OS-specific */
253 #define PT_LOPROC 0x70000000 /* First processor-specific type. */
254 #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */
256 /* Values for p_flags. */
257 #define PF_X 0x1 /* Executable. */
258 #define PF_W 0x2 /* Writable. */
259 #define PF_R 0x4 /* Readable. */
261 /* Values for d_tag. */
262 #define DT_NULL 0 /* Terminating entry. */
263 #define DT_NEEDED 1 /* String table offset of a needed shared
265 #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */
266 #define DT_PLTGOT 3 /* Processor-dependent address. */
267 #define DT_HASH 4 /* Address of symbol hash table. */
268 #define DT_STRTAB 5 /* Address of string table. */
269 #define DT_SYMTAB 6 /* Address of symbol table. */
270 #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */
271 #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */
272 #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */
273 #define DT_STRSZ 10 /* Size of string table. */
274 #define DT_SYMENT 11 /* Size of each symbol table entry. */
275 #define DT_INIT 12 /* Address of initialization function. */
276 #define DT_FINI 13 /* Address of finalization function. */
277 #define DT_SONAME 14 /* String table offset of shared object
279 #define DT_RPATH 15 /* String table offset of library path. [sup] */
280 #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */
281 #define DT_REL 17 /* Address of ElfNN_Rel relocations. */
282 #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */
283 #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */
284 #define DT_PLTREL 20 /* Type of relocation used for PLT. */
285 #define DT_DEBUG 21 /* Reserved (not used). */
286 #define DT_TEXTREL 22 /* Indicates there may be relocations in
287 non-writable segments. [sup] */
288 #define DT_JMPREL 23 /* Address of PLT relocations. */
289 #define DT_BIND_NOW 24 /* [sup] */
290 #define DT_INIT_ARRAY 25 /* Address of the array of pointers to
291 initialization functions */
292 #define DT_FINI_ARRAY 26 /* Address of the array of pointers to
293 termination functions */
294 #define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of
295 initialization functions. */
296 #define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of
297 terminationfunctions. */
298 #define DT_RUNPATH 29 /* String table offset of a null-terminated
299 library search path string. */
300 #define DT_FLAGS 30 /* Object specific flag values. */
301 #define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING
302 and less than DT_LOOS follow the rules for
303 the interpretation of the d_un union
304 as follows: even == 'd_ptr', even == 'd_val'
306 #define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to
307 pre-initialization functions. */
308 #define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of
309 pre-initialization functions. */
311 #define DT_COUNT 33 /* Number of defined d_tag values. */
313 #define DT_LOOS 0x6000000d /* First OS-specific */
314 #define DT_HIOS 0x6fff0000 /* Last OS-specific */
315 #define DT_LOPROC 0x70000000 /* First processor-specific type. */
316 #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */
318 /* Values for DT_FLAGS */
319 #define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may
320 make reference to the $ORIGIN substitution
322 #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */
323 #define DF_TEXTREL 0x0004 /* Indicates there may be relocations in
324 non-writable segments. */
325 #define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should
326 process all relocations for the object
327 containing this entry before transferring
328 control to the program. */
329 #define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or
330 executable contains code using a static
331 thread-local storage scheme. */
333 /* Values for n_type. Used in core files. */
334 #define NT_PRSTATUS 1 /* Process status. */
335 #define NT_FPREGSET 2 /* Floating point registers. */
336 #define NT_PRPSINFO 3 /* Process state info. */
338 /* Symbol Binding - ELFNN_ST_BIND - st_info */
339 #define STB_LOCAL 0 /* Local symbol */
340 #define STB_GLOBAL 1 /* Global symbol */
341 #define STB_WEAK 2 /* like global - lower precedence */
342 #define STB_LOPROC 13 /* reserved range for processor */
343 #define STB_HIPROC 15 /* specific symbol bindings */
345 /* Symbol type - ELFNN_ST_TYPE - st_info */
346 #define STT_NOTYPE 0 /* Unspecified type. */
347 #define STT_OBJECT 1 /* Data object. */
348 #define STT_FUNC 2 /* Function. */
349 #define STT_SECTION 3 /* Section. */
350 #define STT_FILE 4 /* Source file. */
351 #define STT_TLS 6 /* TLS object. */
352 #define STT_LOPROC 13 /* reserved range for processor */
353 #define STT_HIPROC 15 /* specific symbol types */
355 /* Special symbol table indexes. */
356 #define STN_UNDEF 0 /* Undefined symbol index. */
358 #endif /* !_SYS_ELF_COMMON_H_ */