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 1.37 2010/11/23 12:51:08 kib Exp $
29 #ifndef _SYS_ELF_COMMON_H_
30 #define _SYS_ELF_COMMON_H_
33 #include <sys/types.h>
37 * ELF definitions that are independent of architecture or word size.
41 * Note header. The ".note" section contains an array of notes. Each
42 * begins with this header, aligned to a word boundary. Immediately
43 * following the note header is n_namesz bytes of name, padded to the
44 * next word boundary. Then comes n_descsz bytes of descriptor, again
45 * padded to a word boundary. The values of n_namesz and n_descsz do
46 * not include the padding.
50 u_int32_t n_namesz; /* Length of name. */
51 u_int32_t n_descsz; /* Length of descriptor. */
52 u_int32_t n_type; /* Type of this note. */
55 /* Indexes into the e_ident array. Keep synced with
56 http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
57 #define EI_MAG0 0 /* Magic number, byte 0. */
58 #define EI_MAG1 1 /* Magic number, byte 1. */
59 #define EI_MAG2 2 /* Magic number, byte 2. */
60 #define EI_MAG3 3 /* Magic number, byte 3. */
61 #define EI_CLASS 4 /* Class of machine. */
62 #define EI_DATA 5 /* Data format. */
63 #define EI_VERSION 6 /* ELF format version. */
64 #define EI_OSABI 7 /* Operating system / ABI identification */
65 #define EI_ABIVERSION 8 /* ABI version */
66 #define EI_PAD 9 /* Start of padding (per SVR4 ABI). */
67 #define EI_NIDENT 16 /* Size of e_ident array. */
69 /* Values for the magic number bytes. */
74 #define ELFMAG "\177ELF" /* magic string */
75 #define SELFMAG 4 /* magic string size */
77 /* Values for e_ident[EI_VERSION] and e_version. */
81 /* Values for e_ident[EI_CLASS]. */
82 #define ELFCLASSNONE 0 /* Unknown class. */
83 #define ELFCLASS32 1 /* 32-bit architecture. */
84 #define ELFCLASS64 2 /* 64-bit architecture. */
86 /* Values for e_ident[EI_DATA]. */
87 #define ELFDATANONE 0 /* Unknown data format. */
88 #define ELFDATA2LSB 1 /* 2's complement little-endian. */
89 #define ELFDATA2MSB 2 /* 2's complement big-endian. */
91 /* Values for e_ident[EI_OSABI]. */
92 #define ELFOSABI_NONE 0 /* UNIX System V ABI */
93 #define ELFOSABI_HPUX 1 /* HP-UX operating system */
94 #define ELFOSABI_NETBSD 2 /* NetBSD */
95 #define ELFOSABI_LINUX 3 /* GNU/Linux */
96 #define ELFOSABI_HURD 4 /* GNU/Hurd */
97 #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
98 #define ELFOSABI_SOLARIS 6 /* Solaris */
99 #define ELFOSABI_AIX 7 /* AIX */
100 #define ELFOSABI_IRIX 8 /* IRIX */
101 #define ELFOSABI_FREEBSD 9 /* FreeBSD */
102 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
103 #define ELFOSABI_MODESTO 11 /* Novell Modesto */
104 #define ELFOSABI_OPENBSD 12 /* OpenBSD */
105 #define ELFOSABI_OPENVMS 13 /* Open VMS */
106 #define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */
107 #define ELFOSABI_AROS 15 /* Amiga Research OS */
108 #define ELFOSABI_ARM 97 /* ARM */
109 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
111 #define ELFOSABI_SYSV ELFOSABI_NONE /* symbol used in old spec */
112 #define ELFOSABI_MONTEREY ELFOSABI_AIX /* Monterey */
115 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
116 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
117 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
118 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
120 /* Values for e_type. */
121 #define ET_NONE 0 /* Unknown type. */
122 #define ET_REL 1 /* Relocatable. */
123 #define ET_EXEC 2 /* Executable. */
124 #define ET_DYN 3 /* Shared object. */
125 #define ET_CORE 4 /* Core file. */
126 #define ET_LOOS 0xfe00 /* First operating system specific. */
127 #define ET_HIOS 0xfeff /* Last operating system-specific. */
128 #define ET_LOPROC 0xff00 /* First processor-specific. */
129 #define ET_HIPROC 0xffff /* Last processor-specific. */
131 /* Values for e_machine. */
132 #define EM_NONE 0 /* Unknown machine. */
133 #define EM_M32 1 /* AT&T WE32100. */
134 #define EM_SPARC 2 /* Sun SPARC. */
135 #define EM_386 3 /* Intel i386. */
136 #define EM_68K 4 /* Motorola 68000. */
137 #define EM_88K 5 /* Motorola 88000. */
138 #define EM_860 7 /* Intel i860. */
139 #define EM_MIPS 8 /* MIPS R3000 Big-Endian only. */
140 #define EM_S370 9 /* IBM System/370. */
141 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 Little-Endian. */
142 #define EM_PARISC 15 /* HP PA-RISC. */
143 #define EM_VPP500 17 /* Fujitsu VPP500. */
144 #define EM_SPARC32PLUS 18 /* SPARC v8plus. */
145 #define EM_960 19 /* Intel 80960. */
146 #define EM_PPC 20 /* PowerPC 32-bit. */
147 #define EM_PPC64 21 /* PowerPC 64-bit. */
148 #define EM_S390 22 /* IBM System/390. */
149 #define EM_V800 36 /* NEC V800. */
150 #define EM_FR20 37 /* Fujitsu FR20. */
151 #define EM_RH32 38 /* TRW RH-32. */
152 #define EM_RCE 39 /* Motorola RCE. */
153 #define EM_ARM 40 /* ARM. */
154 #define EM_SH 42 /* Hitachi SH. */
155 #define EM_SPARCV9 43 /* SPARC v9 64-bit. */
156 #define EM_TRICORE 44 /* Siemens TriCore embedded processor. */
157 #define EM_ARC 45 /* Argonaut RISC Core. */
158 #define EM_H8_300 46 /* Hitachi H8/300. */
159 #define EM_H8_300H 47 /* Hitachi H8/300H. */
160 #define EM_H8S 48 /* Hitachi H8S. */
161 #define EM_H8_500 49 /* Hitachi H8/500. */
162 #define EM_IA_64 50 /* Intel IA-64 Processor. */
163 #define EM_MIPS_X 51 /* Stanford MIPS-X. */
164 #define EM_COLDFIRE 52 /* Motorola ColdFire. */
165 #define EM_68HC12 53 /* Motorola M68HC12. */
166 #define EM_MMA 54 /* Fujitsu MMA. */
167 #define EM_PCP 55 /* Siemens PCP. */
168 #define EM_NCPU 56 /* Sony nCPU. */
169 #define EM_NDR1 57 /* Denso NDR1 microprocessor. */
170 #define EM_STARCORE 58 /* Motorola Star*Core processor. */
171 #define EM_ME16 59 /* Toyota ME16 processor. */
172 #define EM_ST100 60 /* STMicroelectronics ST100 processor. */
173 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ processor. */
174 #define EM_X86_64 62 /* Advanced Micro Devices x86-64 */
175 #define EM_PDSP 63 /* Sony DSP Processor */
176 #define EM_FX66 66 /* Siemens FX66 microcontroller */
177 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
178 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
179 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
180 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
181 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
182 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
183 #define EM_SVX 73 /* Silicon Graphics SVx */
184 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
185 #define EM_VAX 75 /* Digital VAX */
186 #define EM_CRIS 76 /* Axis Comm. 32-bit embedded processor */
187 #define EM_JAVELIN 77 /* Infineon Tech. 32-bit embedded processor */
188 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
189 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
190 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit proc */
191 #define EM_HUANY 81 /* Harvard Uni. machine-independent obj files */
192 #define EM_PRISM 82 /* SiTera Prism */
193 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
194 #define EM_FR30 84 /* Fujitsu FR30 */
195 #define EM_D10V 85 /* Mitsubishi D10V */
196 #define EM_D30V 86 /* Mitsubishi D30V */
197 #define EM_V850 87 /* NEC v850 */
198 #define EM_M32R 88 /* Mitsubishi M32R */
199 #define EM_MN10300 89 /* Matsushita MN10300 */
200 #define EM_MN10200 90 /* Matsushita MN10200 */
201 #define EM_PJ 91 /* picoJava */
202 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
203 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
204 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
205 #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */
206 #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Proc */
207 #define EM_NS32K 97 /* National Semiconductor 32000 series */
208 #define EM_TPC 98 /* Tenor Network TPC processor */
209 #define EM_SNP1K 99 /* Trebia SNP 1000 processor */
210 #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller */
211 #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */
212 #define EM_MAX 102 /* MAX Processor */
213 #define EM_CR 103 /* NatSemi CompactRISC microprocessor */
214 #define EM_F2MC16 104 /* Fujitsu F2MC16 */
215 #define EM_MSP430 105 /* TI embedded microcontroller msp430 */
216 #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */
217 #define EM_SE_C33 107 /* S1C33 Family of Seiko Epson processors */
218 #define EM_SEP 108 /* Sharp embedded microprocessor */
219 #define EM_ARCA 109 /* Arca RISC Microprocessor */
220 #define EM_UNICORE 110 /* Microprocessor series from PKU-Unity Ltd. */
221 /* and MPRC of Peking University */
223 /* Non-standard or deprecated. */
224 #define EM_486 6 /* Intel i486. */
225 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
226 #define EM_ALPHA_STD 41 /* Digital Alpha (standard value). */
227 #define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI) */
231 /* Special section indexes. */
232 #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */
233 #define SHN_LORESERVE 0xff00 /* First of reserved range. */
234 #define SHN_LOPROC 0xff00 /* First processor-specific. */
235 #define SHN_HIPROC 0xff1f /* Last processor-specific. */
236 #define SHN_LOOS 0xff20 /* First operating system-specific. */
237 #define SHN_HIOS 0xff3f /* Last operating system-specific. */
238 #define SHN_ABS 0xfff1 /* Absolute values. */
239 #define SHN_COMMON 0xfff2 /* Common data. */
240 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere. */
241 #define SHN_HIRESERVE 0xffff /* Last of reserved range. */
244 #define SHT_NULL 0 /* inactive */
245 #define SHT_PROGBITS 1 /* program defined information */
246 #define SHT_SYMTAB 2 /* symbol table section */
247 #define SHT_STRTAB 3 /* string table section */
248 #define SHT_RELA 4 /* relocation section with addends */
249 #define SHT_HASH 5 /* symbol hash table section */
250 #define SHT_DYNAMIC 6 /* dynamic section */
251 #define SHT_NOTE 7 /* note section */
252 #define SHT_NOBITS 8 /* no space section */
253 #define SHT_REL 9 /* relocation section - no addends */
254 #define SHT_SHLIB 10 /* reserved - purpose unknown */
255 #define SHT_DYNSYM 11 /* dynamic symbol table section */
256 #define SHT_INIT_ARRAY 14 /* Initialization function pointers. */
257 #define SHT_FINI_ARRAY 15 /* Termination function pointers. */
258 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs. */
259 #define SHT_GROUP 17 /* Section group. */
260 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX). */
262 #define SHT_NUM 19 /* number of section types */
264 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */
265 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */
266 #define SHT_LOPROC 0x70000000 /* reserved range for processor */
267 #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */
268 #define SHT_HIPROC 0x7fffffff /* specific section header types */
269 #define SHT_LOUSER 0x80000000 /* reserved range for application */
270 #define SHT_HIUSER 0xffffffff /* specific indexes */
272 /* Flags for sh_flags. */
273 #define SHF_WRITE 0x1 /* Section contains writable data. */
274 #define SHF_ALLOC 0x2 /* Section occupies memory. */
275 #define SHF_EXECINSTR 0x4 /* Section contains instructions. */
276 #define SHF_MERGE 0x10 /* Section may be merged. */
277 #define SHF_STRINGS 0x20 /* Section contains strings. */
278 #define SHF_INFO_LINK 0x40 /* sh_info holds section index. */
279 #define SHF_LINK_ORDER 0x80 /* Special ordering requirements. */
280 #define SHF_OS_NONCONFORMING 0x100 /* OS-specific processing required. */
281 #define SHF_GROUP 0x200 /* Member of section group. */
282 #define SHF_TLS 0x400 /* Section contains TLS data. */
283 #define SHF_MASKOS 0x0ff00000 /* OS-specific semantics. */
284 #define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */
286 /* Section group flags. */
287 #define GRP_COMDAT 0x1 /* Group is a COMDAT. */
288 #define GRP_MASKOS 0x0ff00000 /* Reserved for OS-specific. */
289 #define GRP_MASKPROC 0xf0000000 /* Reserved for processor-specific. */
291 /* Values for p_type. */
292 #define PT_NULL 0 /* Unused entry. */
293 #define PT_LOAD 1 /* Loadable segment. */
294 #define PT_DYNAMIC 2 /* Dynamic linking information segment. */
295 #define PT_INTERP 3 /* Pathname of interpreter. */
296 #define PT_NOTE 4 /* Auxiliary information. */
297 #define PT_SHLIB 5 /* Reserved (not used). */
298 #define PT_PHDR 6 /* Location of program header itself. */
299 #define PT_TLS 7 /* Thread local storage segment */
301 #define PT_COUNT 8 /* Number of defined p_type values. */
303 #define PT_LOOS 0x60000000 /* First OS-specific. */
304 #define PT_GNU_EH_FRAME 0x6474e550
305 #define PT_GNU_STACK 0x6474e551
306 #define PT_HIOS 0x6fffffff /* Last OS-specific. */
307 #define PT_LOPROC 0x70000000 /* First processor-specific type. */
308 #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */
310 /* Values for p_flags. */
311 #define PF_X 0x1 /* Executable. */
312 #define PF_W 0x2 /* Writable. */
313 #define PF_R 0x4 /* Readable. */
314 #define PF_MASKOS 0x0ff00000 /* Operating system-specific. */
315 #define PF_MASKPROC 0xf0000000 /* Processor-specific. */
317 /* Values for d_tag. */
318 #define DT_NULL 0 /* Terminating entry. */
319 #define DT_NEEDED 1 /* String table offset of a needed shared
321 #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */
322 #define DT_PLTGOT 3 /* Processor-dependent address. */
323 #define DT_HASH 4 /* Address of symbol hash table. */
324 #define DT_STRTAB 5 /* Address of string table. */
325 #define DT_SYMTAB 6 /* Address of symbol table. */
326 #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */
327 #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */
328 #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */
329 #define DT_STRSZ 10 /* Size of string table. */
330 #define DT_SYMENT 11 /* Size of each symbol table entry. */
331 #define DT_INIT 12 /* Address of initialization function. */
332 #define DT_FINI 13 /* Address of finalization function. */
333 #define DT_SONAME 14 /* String table offset of shared object
335 #define DT_RPATH 15 /* String table offset of library path. [sup] */
336 #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */
337 #define DT_REL 17 /* Address of ElfNN_Rel relocations. */
338 #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */
339 #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */
340 #define DT_PLTREL 20 /* Type of relocation used for PLT. */
341 #define DT_DEBUG 21 /* Reserved (not used). */
342 #define DT_TEXTREL 22 /* Indicates there may be relocations in
343 non-writable segments. [sup] */
344 #define DT_JMPREL 23 /* Address of PLT relocations. */
345 #define DT_BIND_NOW 24 /* [sup] */
346 #define DT_INIT_ARRAY 25 /* Address of the array of pointers to
347 initialization functions */
348 #define DT_FINI_ARRAY 26 /* Address of the array of pointers to
349 termination functions */
350 #define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of
351 initialization functions. */
352 #define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of
353 terminationfunctions. */
354 #define DT_RUNPATH 29 /* String table offset of a null-terminated
355 library search path string. */
356 #define DT_FLAGS 30 /* Object specific flag values. */
357 #define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING
358 and less than DT_LOOS follow the rules for
359 the interpretation of the d_un union
360 as follows: even == 'd_ptr', odd == 'd_val'
362 #define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to
363 pre-initialization functions. */
364 #define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of
365 pre-initialization functions. */
367 #define DT_COUNT 34 /* Number of defined d_tag values. */
369 #define DT_LOOS 0x6000000d /* First OS-specific */
370 #define DT_HIOS 0x6fff0000 /* Last OS-specific */
373 * DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the
374 * Dyn.d_un.d_val field of the Elf*_Dyn structure.
376 #define DT_VALRNGLO 0x6ffffd00
377 #define DT_CHECKSUM 0x6ffffdf8 /* elf checksum */
378 #define DT_PLTPADSZ 0x6ffffdf9 /* pltpadding size */
379 #define DT_MOVEENT 0x6ffffdfa /* move table entry size */
380 #define DT_MOVESZ 0x6ffffdfb /* move table size */
381 #define DT_FEATURE_1 0x6ffffdfc /* feature holder */
382 #define DT_POSFLAG_1 0x6ffffdfd /* flags for DT_* entries, effecting */
383 /* the following DT_* entry. */
384 /* See DF_P1_* definitions */
385 #define DT_SYMINSZ 0x6ffffdfe /* syminfo table size (in bytes) */
386 #define DT_SYMINENT 0x6ffffdff /* syminfo entry size (in bytes) */
387 #define DT_VALRNGHI 0x6ffffdff
390 * DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the
391 * Dyn.d_un.d_ptr field of the Elf*_Dyn structure.
393 * If any adjustment is made to the ELF object after it has been
394 * built, these entries will need to be adjusted.
396 #define DT_ADDRRNGLO 0x6ffffe00
397 #define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table */
398 #define DT_CONFIG 0x6ffffefa /* configuration information */
399 #define DT_DEPAUDIT 0x6ffffefb /* dependency auditing */
400 #define DT_AUDIT 0x6ffffefc /* object auditing */
401 #define DT_PLTPAD 0x6ffffefd /* pltpadding (sparcv9) */
402 #define DT_MOVETAB 0x6ffffefe /* move table */
403 #define DT_SYMINFO 0x6ffffeff /* syminfo table */
404 #define DT_ADDRRNGHI 0x6ffffeff
406 #define DT_VERSYM 0x6ffffff0 /* Address of versym section. */
407 #define DT_RELACOUNT 0x6ffffff9 /* number of RELATIVE relocations */
408 #define DT_RELCOUNT 0x6ffffffa /* number of RELATIVE relocations */
409 #define DT_FLAGS_1 0x6ffffffb /* state flags - see DF_1_* defs */
410 #define DT_VERDEF 0x6ffffffc /* Address of verdef section. */
411 #define DT_VERDEFNUM 0x6ffffffd /* Number of elems in verdef section */
412 #define DT_VERNEED 0x6ffffffe /* Address of verneed section. */
413 #define DT_VERNEEDNUM 0x6fffffff /* Number of elems in verneed section */
415 #define DT_LOPROC 0x70000000 /* First processor-specific type. */
416 #define DT_AUXILIARY 0x7ffffffd /* shared library auxiliary name */
417 #define DT_USED 0x7ffffffe /* ignored - same as needed */
418 #define DT_FILTER 0x7fffffff /* shared library filter name */
419 #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */
421 /* Values for DT_FLAGS */
422 #define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may
423 make reference to the $ORIGIN substitution
425 #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */
426 #define DF_TEXTREL 0x0004 /* Indicates there may be relocations in
427 non-writable segments. */
428 #define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should
429 process all relocations for the object
430 containing this entry before transferring
431 control to the program. */
432 #define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or
433 executable contains code using a static
434 thread-local storage scheme. */
436 /* Values for DT_FLAGS_1 */
437 #define DF_1_BIND_NOW 0x00000001 /* Same as DF_BIND_NOW */
438 #define DF_1_GLOBAL 0x00000002 /* Set the RTLD_GLOBAL for object */
439 #define DF_1_NODELETE 0x00000008 /* Set the RTLD_NODELETE for object */
440 #define DF_1_LOADFLTR 0x00000010 /* Immediate loading of filtees */
441 #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */
442 #define DF_1_ORIGIN 0x00000080 /* Process $ORIGIN */
444 /* Values for n_type. Used in core files. */
445 #define NT_PRSTATUS 1 /* Process status. */
446 #define NT_FPREGSET 2 /* Floating point registers. */
447 #define NT_PRPSINFO 3 /* Process state info. */
448 #define NT_THRMISC 7 /* Thread miscellaneous info. */
450 /* Symbol Binding - ELFNN_ST_BIND - st_info */
451 #define STB_LOCAL 0 /* Local symbol */
452 #define STB_GLOBAL 1 /* Global symbol */
453 #define STB_WEAK 2 /* like global - lower precedence */
454 #define STB_LOOS 10 /* Reserved range for operating system */
455 #define STB_HIOS 12 /* specific semantics. */
456 #define STB_LOPROC 13 /* reserved range for processor */
457 #define STB_HIPROC 15 /* specific semantics. */
459 /* Symbol type - ELFNN_ST_TYPE - st_info */
460 #define STT_NOTYPE 0 /* Unspecified type. */
461 #define STT_OBJECT 1 /* Data object. */
462 #define STT_FUNC 2 /* Function. */
463 #define STT_SECTION 3 /* Section. */
464 #define STT_FILE 4 /* Source file. */
465 #define STT_COMMON 5 /* Uninitialized common block. */
466 #define STT_TLS 6 /* TLS object. */
468 #define STT_LOOS 10 /* Reserved range for operating system */
469 #define STT_HIOS 12 /* specific semantics. */
470 #define STT_LOPROC 13 /* reserved range for processor */
471 #define STT_HIPROC 15 /* specific semantics. */
473 /* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */
474 #define STV_DEFAULT 0x0 /* Default visibility (see binding). */
475 #define STV_INTERNAL 0x1 /* Special meaning in relocatable objects. */
476 #define STV_HIDDEN 0x2 /* Not visible. */
477 #define STV_PROTECTED 0x3 /* Visible but not preemptible. */
478 #define STV_EXPORTED 0x4
479 #define STV_SINGLETON 0x5
480 #define STV_ELIMINATE 0x6
482 /* Special symbol table indexes. */
483 #define STN_UNDEF 0 /* Undefined symbol index. */
485 /* Symbol versioning flags. */
486 #define VER_DEF_CURRENT 1
487 #define VER_DEF_IDX(x) VER_NDX(x)
489 #define VER_FLG_BASE 0x01
490 #define VER_FLG_WEAK 0x02
492 #define VER_NEED_CURRENT 1
493 #define VER_NEED_WEAK (1u << 15)
494 #define VER_NEED_HIDDEN VER_NDX_HIDDEN
495 #define VER_NEED_IDX(x) VER_NDX(x)
497 #define VER_NDX_LOCAL 0
498 #define VER_NDX_GLOBAL 1
499 #define VER_NDX_GIVEN 2
501 #define VER_NDX_HIDDEN (1u << 15)
502 #define VER_NDX(x) ((x) & ~(1u << 15))
504 #endif /* !_SYS_ELF_COMMON_H_ */
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