xref: /dragonfly/sys/sys/elf_common.h (revision 1847e88f)
1 /*-
2  * Copyright (c) 1998 John D. Polstra.
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  * 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.
13  *
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
24  * SUCH DAMAGE.
25  *
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 1.18 2005/07/13 19:40:58 asmodai Exp $
28  */
29 
30 #ifndef _SYS_ELF_COMMON_H_
31 #define _SYS_ELF_COMMON_H_ 1
32 
33 /*
34  * ELF definitions that are independent of architecture or word size.
35  */
36 
37 /*
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.
44  */
45 
46 typedef struct {
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. */
50 } Elf_Note;
51 
52 /* Indexes into the e_ident array.  Keep synced with
53    http://www.caldera.com/developers/gabi/ */
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. */
66 
67 /* Values for the magic number bytes. */
68 #define ELFMAG0		0x7f
69 #define ELFMAG1		'E'
70 #define ELFMAG2		'L'
71 #define ELFMAG3		'F'
72 
73 /* Values for e_ident[EI_VERSION] and e_version. */
74 #define EV_NONE		0
75 #define EV_CURRENT	1
76 
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. */
81 
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. */
86 
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_OPENVMS	13	/* OpenVMS */
103 #define ELFOSABI_NSK		14	/* HP Non-Stop Kernel */
104 #define ELSOSABI_AROS		15	/* Amiga Research OS */
105 #define ELFOSABI_ARM		97	/* ARM */
106 #define ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */
107 
108 /* e_ident */
109 #define IS_ELF(ehdr)	((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
110 			 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
111 			 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
112 			 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
113 
114 /* Values for e_type. */
115 #define ET_NONE		0	/* Unknown type. */
116 #define ET_REL		1	/* Relocatable. */
117 #define ET_EXEC		2	/* Executable. */
118 #define ET_DYN		3	/* Shared object. */
119 #define ET_CORE		4	/* Core file. */
120 #define ET_LOOS		0xfe00	/* OS-specific range start. */
121 #define ET_HIOS		0xfeff	/* OS-specific range end. */
122 #define ET_LIPROC	0xff00	/* Processor-specific range start. */
123 #define ET_HIPROC	0xffff	/* Processor-specific range end. */
124 
125 /* Values for e_machine. */
126 #define EM_NONE		0	/* Unknown machine. */
127 #define EM_M32		1	/* AT&T WE32100. */
128 #define EM_SPARC	2	/* Sun SPARC. */
129 #define EM_386		3	/* Intel i386. */
130 #define EM_68K		4	/* Motorola 68000. */
131 #define EM_88K		5	/* Motorola 88000. */
132 /*			6	reserved (was EM_486) */
133 #define EM_860		7	/* Intel i860. */
134 #define EM_MIPS		8	/* MIPS R3000 Big-Endian only */
135 
136 /* Extensions. */
137 #define EM_S370		9	/* IBM System/370 */
138 #define EM_MIPS_RS4_BE	10	/* MIPS R4000 Big-Endian */ /* Depreciated */
139 /*			11-14	reserved */
140 #define EM_PARISC	15	/* HPPA */
141 /*			16	reserved */
142 #define EM_VPP500	17	/* Fujitsu VPP500 */
143 #define EM_SPARC32PLUS	18	/* SPARC v8plus */
144 #define EM_960		19	/* Intel 80960 */
145 #define EM_PPC		20	/* PowerPC 32-bit */
146 #define EM_PPC64	21	/* PowerPC 64-bit */
147 #define EM_S390		22	/* IBM S390 */
148 /*			23-35	reserved */
149 #define EM_V800		36	/* NEC V800 series */
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_ALPHA	41	/* Digital Alpha */
155 #define EM_SH		42	/* Hitachi SH */
156 #define EM_SPARCV9	43	/* SPARC v9 64-bit */
157 #define EM_TRICORE	44	/* Siemens Tricore */
158 #define EM_ARC		45	/* Argonaut RISC Core */
159 #define EM_H8_300	46	/* Hitachi H8/300 */
160 #define EM_H8_300H	47	/* Hitachi H8/300H */
161 #define EM_H8S		48	/* Hitachi H8S */
162 #define EM_H8_500	49	/* Hitachi H8/500 */
163 #define EM_IA_64	50	/* Intel IA-46 Processor */
164 #define EM_MIPS_X	51	/* Stanford MIPS-X */
165 #define EM_COLDFIRE	52	/* Motorola Coldfire */
166 #define EM_68HC12	53	/* Motorola M68HC12 */
167 #define EM_MMA		54	/* Fujitsu MMA Multimedia Accelerator*/
168 #define EM_PCP		55	/* Siemens PCP */
169 #define EM_NCPU		56	/* Sony nCPU embeeded RISC */
170 #define EM_NDR1		57	/* Denso NDR1 microprocessor */
171 #define EM_STARCORE	58	/* Motorola Start*Core processor */
172 #define EM_ME16		59	/* Toyota ME16 processor */
173 #define EM_ST100	60	/* STMicroelectronic ST100 processor */
174 #define EM_TINYJ	61	/* Advanced Logic Corp. Tinyj emb.fam*/
175 #define EM_X86_64	62	/* Advanced Micro Devices x86-64 */
176 #define EM_PDSP		63	/* Sony DSP Processor */
177 #define EM_FX66		66	/* Siemens FX66 microcontroller */
178 #define EM_ST9PLUS	67	/* STMicroelectronics ST9+ 8/16 mc */
179 #define EM_ST7		68	/* STmicroelectronics ST7 8 bit mc */
180 #define EM_68HC16	69	/* Motorola MC68HC16 microcontroller */
181 #define EM_68HC11	70	/* Motorola MC68HC11 microcontroller */
182 #define EM_68HC08	71	/* Motorola MC68HC08 microcontroller */
183 #define EM_68HC05	72	/* Motorola MC68HC05 microcontroller */
184 #define EM_SVX		73	/* Silicon Graphics SVx */
185 #define EM_ST19		74	/* STMicroelectronics ST19 8 bit mc */
186 #define EM_VAX		75	/* Digital VAX */
187 #define EM_CRIS		76	/* Axis Comm. 32-bit embedded processor */
188 #define EM_JAVELIN	77	/* Infineon Tech. 32-bit embedded processor */
189 #define EM_FIREPATH	78	/* Element 14 64-bit DSP Processor */
190 #define EM_ZSP		79	/* LSI Logic 16-bit DSP Processor */
191 #define EM_MMIX		80	/* Donald Knuth's educational 64-bit proc */
192 #define EM_HUANY	81	/* Harvard Uni. machine-independent obj files */
193 #define EM_PRISM	82	/* SiTera Prism */
194 #define EM_AVR		83	/* Atmel AVR 8-bit microcontroller */
195 #define EM_FR30		84	/* Fujitsu FR30 */
196 #define EM_D10V		85	/* Mitsubishi D10V */
197 #define EM_D30V		86	/* Mitsubishi D30V */
198 #define EM_V850		87	/* NEC v850 */
199 #define EM_M32R		88	/* Mitsubishi M32R */
200 #define EM_MN10300	89	/* Matsushita MN10300 */
201 #define EM_MN10200	90	/* Matsushita MN10200 */
202 #define EM_PJ		91	/* picoJava */
203 #define EM_OPENRISC	92	/* OpenRISC 32-bit embedded processor */
204 #define EM_ARC_A5	93	/* ARC Cores Tangent-A5 */
205 #define EM_XTENSA	94	/* Tensilica Xtensa Architecture */
206 #define EM_VIDEOCORE	95	/* Alphamosaic VideoCore processor */
207 #define EM_TMM_GPP	96	/* Thompson Multimedia General Purpose Proc  */
208 #define EM_NS32K	97	/* National Semiconductor 32000 series */
209 #define EM_TPC		98	/* Tenor Network TPC processor */
210 #define EM_SNP1K	99	/* Trebia SNP 1000 processor */
211 #define EM_ST200	100	/* STMicroelectronics ST200 microcontroller */
212 #define EM_IP2K		101	/* Ubicom IP2xxx microcontroller family */
213 #define EM_MAX		102	/* MAX Processor */
214 #define EM_CR		103	/* NatSemi CompactRISC microprocessor */
215 #define EM_F2MC16	104	/* Fujitsu F2MC16 */
216 #define EM_MSP430	105	/* TI embedded microcontroller msp430 */
217 #define EM_BLACKFIN 	106	/* Analog Devices Blackfin (DSP) processor */
218 #define EM_SE_C33 	107	/* S1C33 Family of Seiko Epson processors */
219 #define EM_SEP		108	/* Sharp embedded microprocessor */
220 #define EM_ARCA		109	/* Arca RISC Microprocessor */
221 #define EM_UNICORE	110	/* Microprocessor series from PKU-Unity Ltd. */
222 				/* and MPRC of Peking University */
223 #define EM_NUM		111
224 
225 /* Special section indexes. */
226 #define SHN_UNDEF	     0		/* Undefined, missing, irrelevant. */
227 #define SHN_LORESERVE	0xff00		/* First of reserved range. */
228 #define SHN_LOPROC	0xff00		/* First processor-specific. */
229 #define SHN_HIPROC	0xff1f		/* Last processor-specific. */
230 #define SHN_LOOS	0xff20		/* First OS-specific. */
231 #define SHN_HIOS	0xff3f		/* Last OS-specific. */
232 #define SHN_ABS		0xfff1		/* Absolute values. */
233 #define SHN_COMMON	0xfff2		/* Common data. */
234 #define SHN_XINDEX	0xffff		/* Section header index too large. */
235 #define SHN_HIRESERVE	0xffff		/* Last of reserved range. */
236 
237 /* sh_type */
238 #define SHT_NULL	0		/* inactive */
239 #define SHT_PROGBITS	1		/* program defined information */
240 #define SHT_SYMTAB	2		/* symbol table section */
241 #define SHT_STRTAB	3		/* string table section */
242 #define SHT_RELA	4		/* relocation section with addends*/
243 #define SHT_HASH	5		/* symbol hash table section */
244 #define SHT_DYNAMIC	6		/* dynamic section */
245 #define SHT_NOTE	7		/* note section */
246 #define SHT_NOBITS	8		/* no space section */
247 #define SHT_REL		9		/* relation section without addends */
248 #define SHT_SHLIB	10		/* reserved - purpose unknown */
249 #define SHT_DYNSYM	11		/* dynamic symbol table section */
250 #define SHT_INIT_ARRAY	14		/* array of constructors */
251 #define SHT_FINI_ARRAY	15		/* array of destructors */
252 #define SHT_PREINIT_ARRAY 16		/* array of pre-constructors */
253 #define SHT_GROUP	17		/* array of pre-constructors */
254 #define SHT_SYMTAB_SHNDX 18		/* extended section indices */
255 #define SHT_NUM		19		/* number of section types */
256 #define SHT_LOOS	0x60000000	/* First of OS specific semantics */
257 #define SHT_HIOS	0x6fffffff	/* Last of OS specific semantics */
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 /* Flags for sh_flags. */
264 #define SHF_WRITE	0x1		/* Section contains writable data. */
265 #define SHF_ALLOC	0x2		/* Section occupies memory. */
266 #define SHF_EXECINSTR	0x4		/* Section contains instructions. */
267 #define SHF_MERGE	0x10		/* Section may be merged. */
268 #define SHF_STRINGS	0x20		/* Section contains strings. */
269 #define SHF_INFO_LINK	0x40		/* sh_info contains SHT index. */
270 #define SHF_LINK_ORDER	0x80		/* Preserve order after combining. */
271 #define SHF_OS_NONCONFORMING 0x100	/* Section requires OS-specific */
272 					/* handling */
273 #define SHF_GROUP	0x200		/* Section is a member of a group. */
274 #define SHF_TLS		0x400		/* Section contains TLS data. */
275 #define SHF_MASKOS	0x0ff00000	/* Reserved for OS-specific. */
276 #define SHF_MASKPROC	0xf0000000	/* Reserved for processor-specific. */
277 
278 /* Section group flags. */
279 #define GRP_COMDAT	0x1		/* Group is a COMDAT. */
280 #define GRP_MASKOS	0x0ff00000	/* Reserved for OS-specific. */
281 #define GRP_MASKPROC	0xf0000000	/* Reserved for processor-specific. */
282 
283 /* Values for p_type. */
284 #define PT_NULL		0	/* Unused entry. */
285 #define PT_LOAD		1	/* Loadable segment. */
286 #define PT_DYNAMIC	2	/* Dynamic linking information segment. */
287 #define PT_INTERP	3	/* Pathname of interpreter. */
288 #define PT_NOTE		4	/* Auxiliary information. */
289 #define PT_SHLIB	5	/* Reserved (not used). */
290 #define PT_PHDR		6	/* Location of program header itself. */
291 #define	PT_TLS		7	/* Thread local storage segment */
292 
293 #define PT_COUNT	8	/* Number of defined p_type values. */
294 
295 #define	PT_LOOS		0x60000000	/* OS-specific */
296 #define	PT_HIOS		0x6fffffff	/* OS-specific */
297 #define PT_LOPROC	0x70000000	/* First processor-specific type. */
298 #define PT_HIPROC	0x7fffffff	/* Last processor-specific type. */
299 
300 /* Values for p_flags. */
301 #define PF_X		0x1		/* Executable. */
302 #define PF_W		0x2		/* Writable. */
303 #define PF_R		0x4		/* Readable. */
304 #define PF_MASKOS	0x0ff00000	/* Reserved for OS-specific. */
305 #define PF_MASKPROC	0xf0000000	/* Reserved for processor-specific. */
306 
307 /* Values for d_tag. */
308 #define DT_NULL		0	/* Terminating entry. */
309 #define DT_NEEDED	1	/* String table offset of a needed shared
310 				   library. */
311 #define DT_PLTRELSZ	2	/* Total size in bytes of PLT relocations. */
312 #define DT_PLTGOT	3	/* Processor-dependent address. */
313 #define DT_HASH		4	/* Address of symbol hash table. */
314 #define DT_STRTAB	5	/* Address of string table. */
315 #define DT_SYMTAB	6	/* Address of symbol table. */
316 #define DT_RELA		7	/* Address of ElfNN_Rela relocations. */
317 #define DT_RELASZ	8	/* Total size of ElfNN_Rela relocations. */
318 #define DT_RELAENT	9	/* Size of each ElfNN_Rela relocation entry. */
319 #define DT_STRSZ	10	/* Size of string table. */
320 #define DT_SYMENT	11	/* Size of each symbol table entry. */
321 #define DT_INIT		12	/* Address of initialization function. */
322 #define DT_FINI		13	/* Address of finalization function. */
323 #define DT_SONAME	14	/* String table offset of shared object
324 				   name. */
325 #define DT_RPATH	15	/* String table offset of library path. [sup] */
326 #define DT_SYMBOLIC	16	/* Indicates "symbolic" linking. [sup] */
327 #define DT_REL		17	/* Address of ElfNN_Rel relocations. */
328 #define DT_RELSZ	18	/* Total size of ElfNN_Rel relocations. */
329 #define DT_RELENT	19	/* Size of each ElfNN_Rel relocation. */
330 #define DT_PLTREL	20	/* Type of relocation used for PLT. */
331 #define DT_DEBUG	21	/* Reserved (not used). */
332 #define DT_TEXTREL	22	/* Indicates there may be relocations in
333 				   non-writable segments. [sup] */
334 #define DT_JMPREL	23	/* Address of PLT relocations. */
335 #define	DT_BIND_NOW	24	/* [sup] */
336 #define	DT_INIT_ARRAY	25	/* Address of the array of pointers to
337 				   initialization functions */
338 #define	DT_FINI_ARRAY	26	/* Address of the array of pointers to
339 				   termination functions */
340 #define	DT_INIT_ARRAYSZ	27	/* Size in bytes of the array of
341 				   initialization functions. */
342 #define	DT_FINI_ARRAYSZ	28	/* Size in bytes of the array of
343 				   terminationfunctions. */
344 #define	DT_RUNPATH	29	/* String table offset of a null-terminated
345 				   library search path string. */
346 #define	DT_FLAGS	30	/* Object specific flag values. */
347 #define	DT_ENCODING	32	/* Values greater than or equal to DT_ENCODING
348 				   and less than DT_LOOS follow the rules for
349 				   the interpretation of the d_un union
350 				   as follows: even == 'd_ptr', even == 'd_val'
351 				   or none */
352 #define	DT_PREINIT_ARRAY 32	/* Address of the array of pointers to
353 				   pre-initialization functions. */
354 #define	DT_PREINIT_ARRAYSZ 33	/* Size in bytes of the array of
355 				   pre-initialization functions. */
356 
357 #define	DT_COUNT	33	/* Number of defined d_tag values. */
358 
359 #define	DT_LOOS		0x6000000d	/* First OS-specific */
360 #define	DT_HIOS		0x6fff0000	/* Last OS-specific */
361 #define	DT_LOPROC	0x70000000	/* First processor-specific type. */
362 #define	DT_HIPROC	0x7fffffff	/* Last processor-specific type. */
363 
364 /* Values for DT_FLAGS */
365 #define	DF_ORIGIN	0x0001	/* Indicates that the object being loaded may
366 				   make reference to the $ORIGIN substitution
367 				   string */
368 #define	DF_SYMBOLIC	0x0002	/* Indicates "symbolic" linking. */
369 #define	DF_TEXTREL	0x0004	/* Indicates there may be relocations in
370 				   non-writable segments. */
371 #define	DF_BIND_NOW	0x0008	/* Indicates that the dynamic linker should
372 				   process all relocations for the object
373 				   containing this entry before transferring
374 				   control to the program. */
375 #define	DF_STATIC_TLS	0x0010	/* Indicates that the shared object or
376 				   executable contains code using a static
377 				   thread-local storage scheme. */
378 
379 /* Values for n_type.  Used in core files. */
380 #define NT_PRSTATUS	1	/* Process status. */
381 #define NT_FPREGSET	2	/* Floating point registers. */
382 #define NT_PRPSINFO	3	/* Process state info. */
383 
384 /* Symbol Binding - ELFNN_ST_BIND - st_info */
385 #define STB_LOCAL	0	/* Local symbol */
386 #define STB_GLOBAL	1	/* Global symbol */
387 #define STB_WEAK	2	/* like global - lower precedence */
388 #define STB_LOOS	10	/* reserved range for OS specific */
389 #define STB_HIOS	12	/*  symbol bindings */
390 #define STB_LOPROC	13	/* reserved range for processor */
391 #define STB_HIPROC	15	/*  specific symbol bindings */
392 
393 /* Symbol type - ELFNN_ST_TYPE - st_info */
394 #define STT_NOTYPE	0	/* Unspecified type. */
395 #define STT_OBJECT	1	/* Data object. */
396 #define STT_FUNC	2	/* Function. */
397 #define STT_SECTION	3	/* Section. */
398 #define STT_FILE	4	/* Source file. */
399 #define STT_COMMON	5	/* Unintialized common block. */
400 #define STT_TLS		6	/* TLS object. */
401 #define STT_LOOS	10	/* reserved range for OS specific */
402 #define STT_HIOS	12	/*  symbol bindings */
403 #define STT_LOPROC	13	/* reserved range for processor */
404 #define STT_HIPROC	15	/*  specific symbol types */
405 
406 /* Special symbol table indexes. */
407 #define STN_UNDEF	0	/* Undefined symbol index. */
408 
409 /* Symbol visibility flags. */
410 #define STV_DEFAULT	0	/* Default symbol visibility. */
411 #define STV_INTERNAL	1	/* Processor-specific visibility. */
412 #define STV_HIDDEN	2	/* Symbol hidden if not exported. */
413 #define STV_PROTECTED	3	/* Not preemptable, not exported. */
414 
415 #endif /* !_SYS_ELF_COMMON_H_ */
416