common.h revision 215679
1164426Ssam/* ELF support for BFD.
2164426Ssam   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3164426Ssam   2001, 2002, 2003
4164426Ssam   Free Software Foundation, Inc.
5164426Ssam
6164426Ssam   Written by Fred Fish @ Cygnus Support, from information published
7164426Ssam   in "UNIX System V Release 4, Programmers Guide: ANSI C and
8164426Ssam   Programming Support Tools".
9164426Ssam
10164426Ssam   This file is part of BFD, the Binary File Descriptor library.
11164426Ssam
12164426Ssam   This program is free software; you can redistribute it and/or modify
13164426Ssam   it under the terms of the GNU General Public License as published by
14164426Ssam   the Free Software Foundation; either version 2 of the License, or
15164426Ssam   (at your option) any later version.
16164426Ssam
17164426Ssam   This program is distributed in the hope that it will be useful,
18164426Ssam   but WITHOUT ANY WARRANTY; without even the implied warranty of
19164426Ssam   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20164426Ssam   GNU General Public License for more details.
21164426Ssam
22164426Ssam   You should have received a copy of the GNU General Public License
23164426Ssam   along with this program; if not, write to the Free Software
24164426Ssam   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
25164426Ssam
26164426Ssam
27164426Ssam/* This file is part of ELF support for BFD, and contains the portions
28164426Ssam   that are common to both the internal and external representations.
29164426Ssam   For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory)
30164426Ssam   and external (in-file) representations.  */
31164426Ssam
32164426Ssam#ifndef _ELF_COMMON_H
33164426Ssam#define _ELF_COMMON_H
34164426Ssam
35164426Ssam/* Fields in e_ident[].  */
36164426Ssam
37164426Ssam#define EI_MAG0		0	/* File identification byte 0 index */
38164426Ssam#define ELFMAG0		   0x7F	/* Magic number byte 0 */
39164426Ssam
40164426Ssam#define EI_MAG1		1	/* File identification byte 1 index */
41164426Ssam#define ELFMAG1		    'E'	/* Magic number byte 1 */
42164426Ssam
43164426Ssam#define EI_MAG2		2	/* File identification byte 2 index */
44164426Ssam#define ELFMAG2		    'L'	/* Magic number byte 2 */
45164426Ssam
46164426Ssam#define EI_MAG3		3	/* File identification byte 3 index */
47164426Ssam#define ELFMAG3		    'F'	/* Magic number byte 3 */
48164426Ssam
49164426Ssam#define EI_CLASS	4	/* File class */
50164426Ssam#define ELFCLASSNONE	      0	/* Invalid class */
51164426Ssam#define ELFCLASS32	      1	/* 32-bit objects */
52164426Ssam#define ELFCLASS64	      2	/* 64-bit objects */
53164426Ssam
54164426Ssam#define EI_DATA		5	/* Data encoding */
55164426Ssam#define ELFDATANONE	      0	/* Invalid data encoding */
56164426Ssam#define ELFDATA2LSB	      1	/* 2's complement, little endian */
57164426Ssam#define ELFDATA2MSB	      2	/* 2's complement, big endian */
58164426Ssam
59164426Ssam#define EI_VERSION	6	/* File version */
60164426Ssam
61164426Ssam#define EI_OSABI	7	/* Operating System/ABI indication */
62164426Ssam#define ELFOSABI_NONE	      0	/* UNIX System V ABI */
63164426Ssam#define ELFOSABI_HPUX	      1	/* HP-UX operating system */
64164426Ssam#define ELFOSABI_NETBSD	      2	/* NetBSD */
65164426Ssam#define ELFOSABI_LINUX	      3	/* GNU/Linux */
66164426Ssam#define ELFOSABI_HURD	      4	/* GNU/Hurd */
67186352Ssam#define ELFOSABI_SOLARIS      6	/* Solaris */
68236987Simp#define ELFOSABI_AIX	      7	/* AIX */
69164426Ssam#define ELFOSABI_IRIX	      8	/* IRIX */
70164426Ssam#define ELFOSABI_FREEBSD      9	/* FreeBSD */
71186352Ssam#define ELFOSABI_TRU64	     10	/* TRU64 UNIX */
72164426Ssam#define ELFOSABI_MODESTO     11	/* Novell Modesto */
73164426Ssam#define ELFOSABI_OPENBSD     12	/* OpenBSD */
74164426Ssam#define ELFOSABI_OPENVMS     13	/* OpenVMS */
75164426Ssam#define ELFOSABI_NSK	     14	/* Hewlett-Packard Non-Stop Kernel */
76186352Ssam#define ELFOSABI_AROS	     15	/* Amiga Research OS */
77186352Ssam#define ELFOSABI_ARM	     97	/* ARM */
78186352Ssam#define ELFOSABI_STANDALONE 255	/* Standalone (embedded) application */
79188088Ssam
80188088Ssam#define EI_ABIVERSION	8	/* ABI version */
81188088Ssam
82188088Ssam#define EI_PAD		9	/* Start of padding bytes */
83164426Ssam
84164426Ssam
85186352Ssam/* Values for e_type, which identifies the object file type.  */
86164426Ssam
87164426Ssam#define ET_NONE		0	/* No file type */
88186352Ssam#define ET_REL		1	/* Relocatable file */
89186352Ssam#define ET_EXEC		2	/* Executable file */
90164426Ssam#define ET_DYN		3	/* Shared object file */
91194654Ssam#define ET_CORE		4	/* Core file */
92194654Ssam#define ET_LOOS		0xFE00	/* Operating system-specific */
93194654Ssam#define ET_HIOS		0xFEFF	/* Operating system-specific */
94194654Ssam#define ET_LOPROC	0xFF00	/* Processor-specific */
95186352Ssam#define ET_HIPROC	0xFFFF	/* Processor-specific */
96189463Ssam
97186352Ssam/* Values for e_machine, which identifies the architecture.  These numbers
98189463Ssam   are officially assigned by registry@caldera.com.  See below for a list of
99189463Ssam   ad-hoc numbers used during initial development.  */
100189463Ssam
101189463Ssam#define EM_NONE		  0	/* No machine */
102189463Ssam#define EM_M32		  1	/* AT&T WE 32100 */
103189463Ssam#define EM_SPARC	  2	/* SUN SPARC */
104189463Ssam#define EM_386		  3	/* Intel 80386 */
105186352Ssam#define EM_68K		  4	/* Motorola m68k family */
106186352Ssam#define EM_88K		  5	/* Motorola m88k family */
107189463Ssam#define EM_486		  6	/* Intel 80486 *//* Reserved for future use */
108189463Ssam#define EM_860		  7	/* Intel 80860 */
109186352Ssam#define EM_MIPS		  8	/* MIPS R3000 (officially, big-endian only) */
110186352Ssam#define EM_S370		  9	/* IBM System/370 */
111189463Ssam#define EM_MIPS_RS3_LE	 10	/* MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated */
112186352Ssam
113186352Ssam#define EM_PARISC	 15	/* HPPA */
114186352Ssam
115186352Ssam#define EM_VPP550	 17	/* Fujitsu VPP500 */
116186352Ssam#define EM_SPARC32PLUS	 18	/* Sun's "v8plus" */
117186352Ssam#define EM_960		 19	/* Intel 80960 */
118186352Ssam#define EM_PPC		 20	/* PowerPC */
119186352Ssam#define EM_PPC64	 21	/* 64-bit PowerPC */
120186352Ssam#define EM_S390		 22	/* IBM S/390 */
121186352Ssam
122164426Ssam#define EM_V800		 36	/* NEC V800 series */
123164426Ssam#define EM_FR20		 37	/* Fujitsu FR20 */
124164426Ssam#define EM_RH32		 38	/* TRW RH32 */
125164426Ssam#define EM_MCORE	 39	/* Motorola M*Core */ /* May also be taken by Fujitsu MMA */
126164426Ssam#define EM_RCE		 39	/* Old name for MCore */
127164426Ssam#define EM_ARM		 40	/* ARM */
128164426Ssam#define EM_OLD_ALPHA	 41	/* Digital Alpha */
129164426Ssam#define EM_SH		 42	/* Renesas (formerly Hitachi) / SuperH SH */
130164426Ssam#define EM_SPARCV9	 43	/* SPARC v9 64-bit */
131164426Ssam#define EM_TRICORE	 44	/* Siemens Tricore embedded processor */
132164426Ssam#define EM_ARC		 45	/* ARC Cores */
133189463Ssam#define EM_H8_300	 46	/* Renesas (formerly Hitachi) H8/300 */
134164426Ssam#define EM_H8_300H	 47	/* Renesas (formerly Hitachi) H8/300H */
135164426Ssam#define EM_H8S		 48	/* Renesas (formerly Hitachi) H8S */
136164426Ssam#define EM_H8_500	 49	/* Renesas (formerly Hitachi) H8/500 */
137164426Ssam#define EM_IA_64	 50	/* Intel IA-64 Processor */
138164426Ssam#define EM_MIPS_X	 51	/* Stanford MIPS-X */
139164426Ssam#define EM_COLDFIRE	 52	/* Motorola Coldfire */
140164426Ssam#define EM_68HC12	 53	/* Motorola M68HC12 */
141164426Ssam#define EM_MMA		 54	/* Fujitsu Multimedia Accelerator */
142164426Ssam#define EM_PCP		 55	/* Siemens PCP */
143186352Ssam#define EM_NCPU		 56	/* Sony nCPU embedded RISC processor */
144186352Ssam#define EM_NDR1		 57	/* Denso NDR1 microprocesspr */
145164426Ssam#define EM_STARCORE	 58	/* Motorola Star*Core processor */
146189463Ssam#define EM_ME16		 59	/* Toyota ME16 processor */
147186352Ssam#define EM_ST100	 60	/* STMicroelectronics ST100 processor */
148164426Ssam#define EM_TINYJ	 61	/* Advanced Logic Corp. TinyJ embedded processor */
149164426Ssam#define EM_X86_64	 62	/* Advanced Micro Devices X86-64 processor */
150164426Ssam
151164426Ssam#define EM_PDP10	 64	/* Digital Equipment Corp. PDP-10 */
152164426Ssam#define EM_PDP11	 65	/* Digital Equipment Corp. PDP-11 */
153164426Ssam#define EM_FX66		 66	/* Siemens FX66 microcontroller */
154164426Ssam#define EM_ST9PLUS	 67	/* STMicroelectronics ST9+ 8/16 bit microcontroller */
155164426Ssam#define EM_ST7		 68	/* STMicroelectronics ST7 8-bit microcontroller */
156164426Ssam#define EM_68HC16	 69	/* Motorola MC68HC16 Microcontroller */
157164426Ssam#define EM_68HC11	 70	/* Motorola MC68HC11 Microcontroller */
158164426Ssam#define EM_68HC08	 71	/* Motorola MC68HC08 Microcontroller */
159164426Ssam#define EM_68HC05	 72	/* Motorola MC68HC05 Microcontroller */
160164426Ssam#define EM_SVX		 73	/* Silicon Graphics SVx */
161164426Ssam#define EM_ST19		 74	/* STMicroelectronics ST19 8-bit cpu */
162164426Ssam#define EM_VAX		 75	/* Digital VAX */
163164426Ssam#define EM_CRIS		 76	/* Axis Communications 32-bit embedded processor */
164164426Ssam#define EM_JAVELIN	 77	/* Infineon Technologies 32-bit embedded cpu */
165164426Ssam#define EM_FIREPATH	 78	/* Element 14 64-bit DSP processor */
166164426Ssam#define EM_ZSP		 79	/* LSI Logic's 16-bit DSP processor */
167164426Ssam#define EM_MMIX		 80	/* Donald Knuth's educational 64-bit processor */
168164426Ssam#define EM_HUANY	 81	/* Harvard's machine-independent format */
169164426Ssam#define EM_PRISM	 82	/* SiTera Prism */
170164426Ssam#define EM_AVR		 83	/* Atmel AVR 8-bit microcontroller */
171164426Ssam#define EM_FR30		 84	/* Fujitsu FR30 */
172164426Ssam#define EM_D10V		 85	/* Mitsubishi D10V */
173164426Ssam#define EM_D30V		 86	/* Mitsubishi D30V */
174164426Ssam#define EM_V850		 87	/* NEC v850 */
175164426Ssam#define EM_M32R		 88	/* Renesas M32R (formerly Mitsubishi M32R) */
176164426Ssam#define EM_MN10300	 89	/* Matsushita MN10300 */
177164426Ssam#define EM_MN10200	 90	/* Matsushita MN10200 */
178164426Ssam#define EM_PJ		 91	/* picoJava */
179164426Ssam#define EM_OPENRISC	 92	/* OpenRISC 32-bit embedded processor */
180164426Ssam#define EM_ARC_A5	 93	/* ARC Cores Tangent-A5 */
181164426Ssam#define EM_XTENSA	 94	/* Tensilica Xtensa Architecture */
182164426Ssam#define EM_IP2K		101	/* Ubicom IP2022 micro controller */
183164426Ssam#define EM_MSP430	105	/* TI msp430 micro controller */
184164426Ssam
185164426Ssam/* If it is necessary to assign new unofficial EM_* values, please pick large
186164426Ssam   random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
187164426Ssam   with official or non-GNU unofficial values.
188164426Ssam
189164426Ssam   NOTE: Do not just increment the most recent number by one.
190164426Ssam   Somebody else somewhere will do exactly the same thing, and you
191164426Ssam   will have a collision.  Instead, pick a random number.
192164426Ssam
193164426Ssam   Normally, each entity or maintainer responsible for a machine with an
194164426Ssam   unofficial e_machine number should eventually ask registry@caldera.com for
195164426Ssam   an officially blessed number to be added to the list above.	*/
196164426Ssam
197164426Ssam#define EM_PJ_OLD      99	/* picoJava */
198164426Ssam
199164426Ssam/* Cygnus PowerPC ELF backend.  Written in the absence of an ABI.  */
200164426Ssam#define EM_CYGNUS_POWERPC 0x9025
201164426Ssam
202164426Ssam/* Old version of Sparc v9, from before the ABI; this should be
203164426Ssam   removed shortly.  */
204164426Ssam#define EM_OLD_SPARCV9	11
205164426Ssam
206164426Ssam/* Old version of PowerPC, this should be removed shortly. */
207164426Ssam#define EM_PPC_OLD	17
208164426Ssam
209164426Ssam/* (Deprecated) Temporary number for the OpenRISC processor.  */
210164426Ssam#define EM_OR32		0x8472
211164426Ssam
212164426Ssam/* Cygnus M32R ELF backend.  Written in the absence of an ABI.  */
213164426Ssam#define EM_CYGNUS_M32R	0x9041
214164426Ssam
215164426Ssam/* Alpha backend magic number.  Written in the absence of an ABI.  */
216164426Ssam#define EM_ALPHA	0x9026
217164426Ssam
218164426Ssam/* old S/390 backend magic number. Written in the absence of an ABI.  */
219164426Ssam#define EM_S390_OLD	0xa390
220164426Ssam
221164426Ssam/* D10V backend magic number.  Written in the absence of an ABI.  */
222164426Ssam#define EM_CYGNUS_D10V	0x7650
223164426Ssam
224164426Ssam/* D30V backend magic number.  Written in the absence of an ABI.  */
225164426Ssam#define EM_CYGNUS_D30V	0x7676
226164426Ssam
227164426Ssam/* V850 backend magic number.  Written in the absense of an ABI.  */
228164426Ssam#define EM_CYGNUS_V850	0x9080
229164426Ssam
230164426Ssam/* mn10200 and mn10300 backend magic numbers.
231164426Ssam   Written in the absense of an ABI.  */
232164426Ssam#define EM_CYGNUS_MN10200	0xdead
233164426Ssam#define EM_CYGNUS_MN10300	0xbeef
234164426Ssam
235164426Ssam/* FR30 magic number - no EABI available.  */
236164426Ssam#define EM_CYGNUS_FR30		0x3330
237164426Ssam
238164426Ssam/* AVR magic number
239164426Ssam   Written in the absense of an ABI.  */
240164426Ssam#define EM_AVR_OLD		0x1057
241164426Ssam
242164426Ssam/* OpenRISC magic number
243164426Ssam   Written in the absense of an ABI.  */
244164426Ssam#define EM_OPENRISC_OLD		0x3426
245164426Ssam
246164426Ssam/* DLX magic number
247164426Ssam   Written in the absense of an ABI.  */
248164426Ssam#define EM_DLX			0x5aa5
249164426Ssam
250164426Ssam#define EM_XSTORMY16		0xad45
251164426Ssam
252164426Ssam/* FRV magic number - no EABI available??.  */
253164426Ssam#define EM_CYGNUS_FRV		0x5441
254164426Ssam
255164426Ssam/* Ubicom IP2xxx; no ABI */
256164426Ssam#define EM_IP2K_OLD		0x8217
257186352Ssam
258186352Ssam/* MSP430 magic number
259186352Ssam      Written in the absense everything.  */
260186352Ssam#define EM_MSP430_OLD		0x1059
261186352Ssam
262186352Ssam/* Vitesse IQ2000.  */
263186352Ssam#define EM_IQ2000		0xFEBA
264186352Ssam
265186352Ssam/* Old, unofficial value for Xtensa.  */
266186352Ssam#define EM_XTENSA_OLD		0xabc7
267186352Ssam
268186352Ssam/* See the above comment before you add a new EM_* value here.  */
269164426Ssam
270164426Ssam/* Values for e_version.  */
271164426Ssam
272164426Ssam#define EV_NONE		0		/* Invalid ELF version */
273164426Ssam#define EV_CURRENT	1		/* Current version */
274164426Ssam
275164426Ssam/* Values for program header, p_type field.  */
276164426Ssam
277164426Ssam#define PT_NULL		0		/* Program header table entry unused */
278164426Ssam#define PT_LOAD		1		/* Loadable program segment */
279164426Ssam#define PT_DYNAMIC	2		/* Dynamic linking information */
280164426Ssam#define PT_INTERP	3		/* Program interpreter */
281164426Ssam#define PT_NOTE		4		/* Auxiliary information */
282164426Ssam#define PT_SHLIB	5		/* Reserved, unspecified semantics */
283164426Ssam#define PT_PHDR		6		/* Entry for header table itself */
284186352Ssam#define PT_TLS		7		/* Thread local storage segment */
285186352Ssam#define PT_LOOS		0x60000000	/* OS-specific */
286186352Ssam#define PT_HIOS		0x6fffffff	/* OS-specific */
287186352Ssam#define PT_LOPROC	0x70000000	/* Processor-specific */
288186352Ssam#define PT_HIPROC	0x7FFFFFFF	/* Processor-specific */
289164426Ssam
290164426Ssam#define PT_GNU_EH_FRAME	(PT_LOOS + 0x474e550)
291164426Ssam#define PT_GNU_STACK	(PT_LOOS + 0x474e551)
292164426Ssam
293164426Ssam/* Program segment permissions, in program header p_flags field.  */
294164426Ssam
295164426Ssam#define PF_X		(1 << 0)	/* Segment is executable */
296164426Ssam#define PF_W		(1 << 1)	/* Segment is writable */
297164426Ssam#define PF_R		(1 << 2)	/* Segment is readable */
298164426Ssam/* #define PF_MASKOS	0x0F000000    *//* OS-specific reserved bits */
299164426Ssam#define PF_MASKOS	0x0FF00000	/* New value, Oct 4, 1999 Draft */
300164426Ssam#define PF_MASKPROC	0xF0000000	/* Processor-specific reserved bits */
301164426Ssam
302164426Ssam/* Values for section header, sh_type field.  */
303164426Ssam
304164426Ssam#define SHT_NULL	0		/* Section header table entry unused */
305164426Ssam#define SHT_PROGBITS	1		/* Program specific (private) data */
306164426Ssam#define SHT_SYMTAB	2		/* Link editing symbol table */
307164426Ssam#define SHT_STRTAB	3		/* A string table */
308164426Ssam#define SHT_RELA	4		/* Relocation entries with addends */
309164426Ssam#define SHT_HASH	5		/* A symbol hash table */
310164426Ssam#define SHT_DYNAMIC	6		/* Information for dynamic linking */
311164426Ssam#define SHT_NOTE	7		/* Information that marks file */
312164426Ssam#define SHT_NOBITS	8		/* Section occupies no space in file */
313164426Ssam#define SHT_REL		9		/* Relocation entries, no addends */
314164426Ssam#define SHT_SHLIB	10		/* Reserved, unspecified semantics */
315164426Ssam#define SHT_DYNSYM	11		/* Dynamic linking symbol table */
316164426Ssam
317164426Ssam#define SHT_INIT_ARRAY	  14		/* Array of ptrs to init functions */
318164426Ssam#define SHT_FINI_ARRAY	  15		/* Array of ptrs to finish functions */
319164426Ssam#define SHT_PREINIT_ARRAY 16		/* Array of ptrs to pre-init funcs */
320164426Ssam#define SHT_GROUP	  17		/* Section contains a section group */
321164426Ssam#define SHT_SYMTAB_SHNDX  18		/* Indicies for SHN_XINDEX entries */
322164426Ssam
323164426Ssam#define SHT_LOOS	0x60000000	/* First of OS specific semantics */
324164426Ssam#define SHT_HIOS	0x6fffffff	/* Last of OS specific semantics */
325164426Ssam
326214946Sthompsa#define SHT_GNU_LIBLIST	0x6ffffff7	/* List of prelink dependencies */
327214946Sthompsa
328164426Ssam/* The next three section types are defined by Solaris, and are named
329164426Ssam   SHT_SUNW*.  We use them in GNU code, so we also define SHT_GNU*
330164426Ssam   versions.  */
331164426Ssam#define SHT_SUNW_verdef	0x6ffffffd	/* Versions defined by file */
332189463Ssam#define SHT_SUNW_verneed 0x6ffffffe	/* Versions needed by file */
333189463Ssam#define SHT_SUNW_versym	0x6fffffff	/* Symbol versions */
334164426Ssam
335164426Ssam#define SHT_GNU_verdef	SHT_SUNW_verdef
336164426Ssam#define SHT_GNU_verneed	SHT_SUNW_verneed
337164426Ssam#define SHT_GNU_versym	SHT_SUNW_versym
338164426Ssam
339164426Ssam#define SHT_LOPROC	0x70000000	/* Processor-specific semantics, lo */
340164426Ssam#define SHT_HIPROC	0x7FFFFFFF	/* Processor-specific semantics, hi */
341164426Ssam#define SHT_LOUSER	0x80000000	/* Application-specific semantics */
342164426Ssam/* #define SHT_HIUSER	0x8FFFFFFF    *//* Application-specific semantics */
343164426Ssam#define SHT_HIUSER	0xFFFFFFFF	/* New value, defined in Oct 4, 1999 Draft */
344164426Ssam
345164426Ssam/* Values for section header, sh_flags field.  */
346164426Ssam
347164426Ssam#define SHF_WRITE	(1 << 0)	/* Writable data during execution */
348164426Ssam#define SHF_ALLOC	(1 << 1)	/* Occupies memory during execution */
349164426Ssam#define SHF_EXECINSTR	(1 << 2)	/* Executable machine instructions */
350164426Ssam#define SHF_MERGE	(1 << 4)	/* Data in this section can be merged */
351164426Ssam#define SHF_STRINGS	(1 << 5)	/* Contains null terminated character strings */
352164426Ssam#define SHF_INFO_LINK	(1 << 6)	/* sh_info holds section header table index */
353164426Ssam#define SHF_LINK_ORDER	(1 << 7)	/* Preserve section ordering when linking */
354164426Ssam#define SHF_OS_NONCONFORMING (1 << 8)	/* OS specific processing required */
355164426Ssam#define SHF_GROUP	(1 << 9)	/* Member of a section group */
356164426Ssam#define SHF_TLS		(1 << 10)	/* Thread local storage section */
357164426Ssam
358164426Ssam/* #define SHF_MASKOS	0x0F000000    *//* OS-specific semantics */
359164426Ssam#define SHF_MASKOS	0x0FF00000	/* New value, Oct 4, 1999 Draft */
360164426Ssam#define SHF_MASKPROC	0xF0000000	/* Processor-specific semantics */
361164426Ssam
362164426Ssam/* Values of note segment descriptor types for core files.  */
363164426Ssam
364164426Ssam#define NT_PRSTATUS	1		/* Contains copy of prstatus struct */
365164426Ssam#define NT_FPREGSET	2		/* Contains copy of fpregset struct */
366164426Ssam#define NT_PRPSINFO	3		/* Contains copy of prpsinfo struct */
367164426Ssam#define NT_TASKSTRUCT	4		/* Contains copy of task struct */
368164426Ssam#define NT_AUXV		6		/* Contains copy of Elfxx_auxv_t */
369164426Ssam#define NT_THRMISC	7		/* Contains copy of thrmisc struct */
370164426Ssam#define NT_PRXFPREG	0x46e62b7f	/* Contains a user_xfpregs_struct; */
371164426Ssam					/*   note name must be "LINUX".  */
372164426Ssam
373164426Ssam/* Note segments for core files on dir-style procfs systems.  */
374164426Ssam
375164426Ssam#define NT_PSTATUS	10		/* Has a struct pstatus */
376164426Ssam#define NT_FPREGS	12		/* Has a struct fpregset */
377164426Ssam#define NT_PSINFO	13		/* Has a struct psinfo */
378164426Ssam#define NT_LWPSTATUS	16		/* Has a struct lwpstatus_t */
379164426Ssam#define NT_LWPSINFO	17		/* Has a struct lwpsinfo_t */
380164426Ssam#define NT_WIN32PSTATUS	18		/* Has a struct win32_pstatus */
381164426Ssam
382164426Ssam
383164426Ssam/* Note segments for core files on NetBSD systems.  Note name
384164426Ssam   must start with "NetBSD-CORE".  */
385164426Ssam
386164426Ssam#define NT_NETBSDCORE_PROCINFO	1	/* Has a struct procinfo */
387164426Ssam#define NT_NETBSDCORE_FIRSTMACH	32	/* start of machdep note types */
388164426Ssam
389164426Ssam
390164426Ssam/* Values of note segment descriptor types for object files.  */
391164426Ssam
392164426Ssam#define NT_VERSION	1		/* Contains a version string.  */
393164426Ssam#define NT_ARCH		2		/* Contains an architecture string.  */
394164426Ssam
395164426Ssam/* Values for GNU .note.ABI-tag notes.  Note name is "GNU".  */
396164426Ssam
397164426Ssam#define NT_GNU_ABI_TAG		1
398164426Ssam#define GNU_ABI_TAG_LINUX	0
399164426Ssam#define GNU_ABI_TAG_HURD	1
400164426Ssam#define GNU_ABI_TAG_SOLARIS	2
401164426Ssam#define GNU_ABI_TAG_FREEBSD	3
402164426Ssam#define GNU_ABI_TAG_NETBSD	4
403261455Seadler
404164426Ssam/* Values for NetBSD .note.netbsd.ident notes.  Note name is "NetBSD".  */
405164426Ssam
406164426Ssam#define NT_NETBSD_IDENT		1
407164426Ssam
408164426Ssam/* Values for OpenBSD .note.openbsd.ident notes.  Note name is "OpenBSD".  */
409164426Ssam
410186418Ssam#define NT_OPENBSD_IDENT	1
411164426Ssam
412164426Ssam/* Values for FreeBSD .note.ABI-tag notes.  Note name is "FreeBSD".  */
413164426Ssam
414164426Ssam#define NT_FREEBSD_ABI_TAG	1
415164426Ssam
416164426Ssam/* These three macros disassemble and assemble a symbol table st_info field,
417164426Ssam   which contains the symbol binding and symbol type.  The STB_ and STT_
418164426Ssam   defines identify the binding and type.  */
419164426Ssam
420186418Ssam#define ELF_ST_BIND(val)		(((unsigned int)(val)) >> 4)
421186418Ssam#define ELF_ST_TYPE(val)		((val) & 0xF)
422186418Ssam#define ELF_ST_INFO(bind,type)		(((bind) << 4) + ((type) & 0xF))
423164426Ssam
424186418Ssam/* The 64bit and 32bit versions of these macros are identical, but
425186418Ssam   the ELF spec defines them, so here they are.  */
426186418Ssam#define ELF32_ST_BIND  ELF_ST_BIND
427186418Ssam#define ELF32_ST_TYPE  ELF_ST_TYPE
428186418Ssam#define ELF32_ST_INFO  ELF_ST_INFO
429186418Ssam#define ELF64_ST_BIND  ELF_ST_BIND
430186418Ssam#define ELF64_ST_TYPE  ELF_ST_TYPE
431186418Ssam#define ELF64_ST_INFO  ELF_ST_INFO
432164426Ssam
433186418Ssam/* This macro disassembles and assembles a symbol's visibility into
434186418Ssam   the st_other field.  The STV_ defines specificy the actual visibility.  */
435186418Ssam
436186418Ssam#define ELF_ST_VISIBILITY(v)		((v) & 0x3)
437186418Ssam/* The remaining bits in the st_other field are not currently used.
438186418Ssam   They should be set to zero.  */
439186418Ssam
440186418Ssam#define ELF32_ST_VISIBILITY  ELF_ST_VISIBILITY
441164426Ssam#define ELF64_ST_VISIBILITY  ELF_ST_VISIBILITY
442164426Ssam
443164426Ssam
444164426Ssam#define STN_UNDEF	0		/* Undefined symbol index */
445189463Ssam
446189463Ssam#define STB_LOCAL	0		/* Symbol not visible outside obj */
447164426Ssam#define STB_GLOBAL	1		/* Symbol visible outside obj */
448186352Ssam#define STB_WEAK	2		/* Like globals, lower precedence */
449186352Ssam#define STB_LOOS	10		/* OS-specific semantics */
450164426Ssam#define STB_HIOS	12		/* OS-specific semantics */
451164426Ssam#define STB_LOPROC	13		/* Application-specific semantics */
452164426Ssam#define STB_HIPROC	15		/* Application-specific semantics */
453164426Ssam
454164426Ssam#define STT_NOTYPE	0		/* Symbol type is unspecified */
455164426Ssam#define STT_OBJECT	1		/* Symbol is a data object */
456164426Ssam#define STT_FUNC	2		/* Symbol is a code object */
457164426Ssam#define STT_SECTION	3		/* Symbol associated with a section */
458164426Ssam#define STT_FILE	4		/* Symbol gives a file name */
459164426Ssam#define STT_COMMON	5		/* An uninitialised common block */
460164426Ssam#define STT_TLS		6		/* Thread local data object */
461164426Ssam#define STT_LOOS	10		/* OS-specific semantics */
462164426Ssam#define STT_HIOS	12		/* OS-specific semantics */
463164426Ssam#define STT_LOPROC	13		/* Application-specific semantics */
464164426Ssam#define STT_HIPROC	15		/* Application-specific semantics */
465164426Ssam
466164426Ssam/* Special section indices, which may show up in st_shndx fields, among
467164426Ssam   other places.  */
468164426Ssam
469164426Ssam#define SHN_UNDEF	0		/* Undefined section reference */
470164426Ssam#define SHN_LORESERVE	0xFF00		/* Begin range of reserved indices */
471164426Ssam#define SHN_LOPROC	0xFF00		/* Begin range of appl-specific */
472164426Ssam#define SHN_HIPROC	0xFF1F		/* End range of appl-specific */
473164426Ssam#define SHN_LOOS	0xFF20		/* OS specific semantics, lo */
474164426Ssam#define SHN_HIOS	0xFF3F		/* OS specific semantics, hi */
475164426Ssam#define SHN_ABS		0xFFF1		/* Associated symbol is absolute */
476164426Ssam#define SHN_COMMON	0xFFF2		/* Associated symbol is in common */
477164426Ssam#define SHN_XINDEX	0xFFFF		/* Section index is held elsewhere */
478164426Ssam#define SHN_HIRESERVE	0xFFFF		/* End range of reserved indices */
479164426Ssam#define SHN_BAD		((unsigned) -1) /* Used internally by bfd */
480164426Ssam
481164426Ssam/* The following constants control how a symbol may be accessed once it has
482164426Ssam   become part of an executable or shared library.  */
483164426Ssam
484164426Ssam#define STV_DEFAULT	0		/* Visibility is specified by binding type */
485164426Ssam#define STV_INTERNAL	1		/* OS specific version of STV_HIDDEN */
486164426Ssam#define STV_HIDDEN	2		/* Can only be seen inside currect component */
487164426Ssam#define STV_PROTECTED	3		/* Treat as STB_LOCAL inside current component */
488164426Ssam
489164426Ssam/* Relocation info handling macros.  */
490164426Ssam
491164426Ssam#define ELF32_R_SYM(i)		((i) >> 8)
492164426Ssam#define ELF32_R_TYPE(i)		((i) & 0xff)
493164426Ssam#define ELF32_R_INFO(s,t)	(((s) << 8) + ((t) & 0xff))
494164426Ssam
495164426Ssam#define ELF64_R_SYM(i)		((i) >> 32)
496164426Ssam#define ELF64_R_TYPE(i)		((i) & 0xffffffff)
497164426Ssam#define ELF64_R_INFO(s,t)	(((bfd_vma) (s) << 32) + (bfd_vma) (t))
498164426Ssam
499164426Ssam/* Dynamic section tags.  */
500164426Ssam
501164426Ssam#define DT_NULL		0
502164426Ssam#define DT_NEEDED	1
503164426Ssam#define DT_PLTRELSZ	2
504164426Ssam#define DT_PLTGOT	3
505164426Ssam#define DT_HASH		4
506164426Ssam#define DT_STRTAB	5
507164426Ssam#define DT_SYMTAB	6
508164426Ssam#define DT_RELA		7
509164426Ssam#define DT_RELASZ	8
510164426Ssam#define DT_RELAENT	9
511164426Ssam#define DT_STRSZ	10
512164426Ssam#define DT_SYMENT	11
513164426Ssam#define DT_INIT		12
514164426Ssam#define DT_FINI		13
515164426Ssam#define DT_SONAME	14
516164426Ssam#define DT_RPATH	15
517164426Ssam#define DT_SYMBOLIC	16
518164426Ssam#define DT_REL		17
519164426Ssam#define DT_RELSZ	18
520164426Ssam#define DT_RELENT	19
521164426Ssam#define DT_PLTREL	20
522164426Ssam#define DT_DEBUG	21
523164426Ssam#define DT_TEXTREL	22
524164426Ssam#define DT_JMPREL	23
525164426Ssam#define DT_BIND_NOW	24
526164426Ssam#define DT_INIT_ARRAY	25
527164426Ssam#define DT_FINI_ARRAY	26
528164426Ssam#define DT_INIT_ARRAYSZ 27
529164426Ssam#define DT_FINI_ARRAYSZ 28
530164426Ssam#define DT_RUNPATH	29
531164426Ssam#define DT_FLAGS	30
532164426Ssam#define DT_ENCODING	31
533164426Ssam#define DT_PREINIT_ARRAY   32
534164426Ssam#define DT_PREINIT_ARRAYSZ 33
535164426Ssam
536164426Ssam/* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
537164426Ssam   for DT_LOOS and DT_HIOS.  Some implementations however, use
538164426Ssam   values outside of the new range (see below).	 */
539164426Ssam#define OLD_DT_LOOS	0x60000000
540164426Ssam#define DT_LOOS		0x6000000d
541164426Ssam#define DT_HIOS		0x6ffff000
542164426Ssam#define OLD_DT_HIOS	0x6fffffff
543164426Ssam
544164426Ssam#define DT_LOPROC	0x70000000
545164426Ssam#define DT_HIPROC	0x7fffffff
546164426Ssam
547164426Ssam/* The next four dynamic tags are used on Solaris.  We support them
548164426Ssam   everywhere.	Note these values lie outside of the (new) range for
549164426Ssam   OS specific values.	This is a deliberate special case and we
550164426Ssam   maintain it for backwards compatability.  */
551164426Ssam#define DT_VALRNGLO	0x6ffffd00
552164426Ssam#define DT_GNU_PRELINKED 0x6ffffdf5
553164426Ssam#define DT_GNU_CONFLICTSZ 0x6ffffdf6
554164426Ssam#define DT_GNU_LIBLISTSZ 0x6ffffdf7
555164426Ssam#define DT_CHECKSUM	0x6ffffdf8
556164426Ssam#define DT_PLTPADSZ	0x6ffffdf9
557164426Ssam#define DT_MOVEENT	0x6ffffdfa
558186352Ssam#define DT_MOVESZ	0x6ffffdfb
559186352Ssam#define DT_FEATURE	0x6ffffdfc
560186352Ssam#define DT_POSFLAG_1	0x6ffffdfd
561186352Ssam#define DT_SYMINSZ	0x6ffffdfe
562186352Ssam#define DT_SYMINENT	0x6ffffdff
563186352Ssam#define DT_VALRNGHI	0x6ffffdff
564186352Ssam
565186352Ssam#define DT_ADDRRNGLO	0x6ffffe00
566186352Ssam#define DT_GNU_CONFLICT	0x6ffffef8
567186352Ssam#define DT_GNU_LIBLIST	0x6ffffef9
568186352Ssam#define DT_CONFIG	0x6ffffefa
569186352Ssam#define DT_DEPAUDIT	0x6ffffefb
570186352Ssam#define DT_AUDIT	0x6ffffefc
571186352Ssam#define DT_PLTPAD	0x6ffffefd
572186352Ssam#define DT_MOVETAB	0x6ffffefe
573186352Ssam#define DT_SYMINFO	0x6ffffeff
574186352Ssam#define DT_ADDRRNGHI	0x6ffffeff
575186352Ssam
576186352Ssam#define DT_RELACOUNT	0x6ffffff9
577186352Ssam#define DT_RELCOUNT	0x6ffffffa
578186352Ssam#define DT_FLAGS_1	0x6ffffffb
579186352Ssam#define DT_VERDEF	0x6ffffffc
580164426Ssam#define DT_VERDEFNUM	0x6ffffffd
581164426Ssam#define DT_VERNEED	0x6ffffffe
582164426Ssam#define DT_VERNEEDNUM	0x6fffffff
583164426Ssam
584164426Ssam/* This tag is a GNU extension to the Solaris version scheme.  */
585164426Ssam#define DT_VERSYM	0x6ffffff0
586164426Ssam
587164426Ssam#define DT_LOPROC	0x70000000
588164426Ssam#define DT_HIPROC	0x7fffffff
589164426Ssam
590164426Ssam/* These section tags are used on Solaris.  We support them
591164426Ssam   everywhere, and hope they do not conflict.  */
592164426Ssam
593164426Ssam#define DT_AUXILIARY	0x7ffffffd
594164426Ssam#define DT_USED		0x7ffffffe
595164426Ssam#define DT_FILTER	0x7fffffff
596164426Ssam
597164426Ssam
598164426Ssam/* Values used in DT_FEATURE .dynamic entry.  */
599164426Ssam#define DTF_1_PARINIT	0x00000001
600164426Ssam/* From
601164426Ssam
602164426Ssam   http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1
603164426Ssam
604164426Ssam   DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value
605164426Ssam   defined here is the same as the one in <sys/link.h> on Solaris 8.  */
606164426Ssam#define DTF_1_CONFEXP	0x00000002
607164426Ssam
608164426Ssam/* Flag values used in the DT_POSFLAG_1 .dynamic entry.	 */
609164426Ssam#define DF_P1_LAZYLOAD	0x00000001
610164426Ssam#define DF_P1_GROUPPERM	0x00000002
611164426Ssam
612164426Ssam/* Flag value in in the DT_FLAGS_1 .dynamic entry.  */
613164426Ssam#define DF_1_NOW	0x00000001
614164426Ssam#define DF_1_GLOBAL	0x00000002
615164426Ssam#define DF_1_GROUP	0x00000004
616236987Simp#define DF_1_NODELETE	0x00000008
617164426Ssam#define DF_1_LOADFLTR	0x00000010
618164426Ssam#define DF_1_INITFIRST	0x00000020
619164426Ssam#define DF_1_NOOPEN	0x00000040
620189463Ssam#define DF_1_ORIGIN	0x00000080
621164426Ssam#define DF_1_DIRECT	0x00000100
622164426Ssam#define DF_1_TRANS	0x00000200
623164426Ssam#define DF_1_INTERPOSE	0x00000400
624164426Ssam#define DF_1_NODEFLIB	0x00000800
625164426Ssam#define DF_1_NODUMP	0x00001000
626164426Ssam#define DF_1_CONLFAT	0x00002000
627164426Ssam
628164426Ssam/* Flag values for the DT_FLAGS entry.	*/
629164426Ssam#define DF_ORIGIN	(1 << 0)
630164426Ssam#define DF_SYMBOLIC	(1 << 1)
631164426Ssam#define DF_TEXTREL	(1 << 2)
632164426Ssam#define DF_BIND_NOW	(1 << 3)
633164426Ssam#define DF_STATIC_TLS	(1 << 4)
634164426Ssam
635164426Ssam/* These constants are used for the version number of a Elf32_Verdef
636164426Ssam   structure.  */
637164426Ssam
638164426Ssam#define VER_DEF_NONE		0
639164426Ssam#define VER_DEF_CURRENT		1
640164426Ssam
641164426Ssam/* These constants appear in the vd_flags field of a Elf32_Verdef
642186352Ssam   structure.  */
643186352Ssam
644186352Ssam#define VER_FLG_BASE		0x1
645186352Ssam#define VER_FLG_WEAK		0x2
646186352Ssam
647186352Ssam/* These special constants can be found in an Elf32_Versym field.  */
648186352Ssam
649186352Ssam#define VER_NDX_LOCAL		0
650164426Ssam#define VER_NDX_GLOBAL		1
651164426Ssam
652164426Ssam/* These constants are used for the version number of a Elf32_Verneed
653164426Ssam   structure.  */
654164426Ssam
655164426Ssam#define VER_NEED_NONE		0
656164426Ssam#define VER_NEED_CURRENT	1
657164426Ssam
658189463Ssam/* This flag appears in a Versym structure.  It means that the symbol
659167570Sjhay   is hidden, and is only visible with an explicit version number.
660189463Ssam   This is a GNU extension.  */
661167570Sjhay
662189463Ssam#define VERSYM_HIDDEN		0x8000
663188088Ssam
664188088Ssam/* This is the mask for the rest of the Versym information.  */
665189651Ssam
666188088Ssam#define VERSYM_VERSION		0x7fff
667189651Ssam
668189651Ssam/* This is a special token which appears as part of a symbol name.  It
669189651Ssam   indictes that the rest of the name is actually the name of a
670164426Ssam   version node, and is not part of the actual name.  This is a GNU
671167570Sjhay   extension.  For example, the symbol name `stat@ver2' is taken to
672189463Ssam   mean the symbol `stat' in version `ver2'.  */
673167570Sjhay
674167570Sjhay#define ELF_VER_CHR	'@'
675189463Ssam
676167570Sjhay/* Possible values for si_boundto.  */
677167570Sjhay
678189463Ssam#define SYMINFO_BT_SELF		0xffff	/* Symbol bound to self */
679167570Sjhay#define SYMINFO_BT_PARENT	0xfffe	/* Symbol bound to parent */
680167570Sjhay#define SYMINFO_BT_LOWRESERVE	0xff00	/* Beginning of reserved entries */
681189463Ssam
682164426Ssam/* Possible bitmasks for si_flags.  */
683164426Ssam
684164426Ssam#define SYMINFO_FLG_DIRECT	0x0001	/* Direct bound symbol */
685164426Ssam#define SYMINFO_FLG_PASSTHRU	0x0002	/* Pass-thru symbol for translator */
686164426Ssam#define SYMINFO_FLG_COPY	0x0004	/* Symbol is a copy-reloc */
687164426Ssam#define SYMINFO_FLG_LAZYLOAD	0x0008	/* Symbol bound to object to be lazy loaded */
688186352Ssam
689186352Ssam/* Syminfo version values.  */
690186352Ssam
691194654Ssam#define SYMINFO_NONE		0
692194654Ssam#define SYMINFO_CURRENT		1
693194654Ssam#define SYMINFO_NUM		2
694194654Ssam
695194654Ssam/* Section Group Flags.	 */
696194654Ssam
697194654Ssam#define GRP_COMDAT		0x1	/* A COMDAT group */
698194654Ssam
699186352Ssam/* Auxv a_type values.  */
700194654Ssam
701194654Ssam#define AT_NULL		0		/* End of vector */
702186352Ssam#define AT_IGNORE	1		/* Entry should be ignored */
703194654Ssam#define AT_EXECFD	2		/* File descriptor of program */
704194654Ssam#define AT_PHDR		3		/* Program headers for program */
705194654Ssam#define AT_PHENT	4		/* Size of program header entry */
706194654Ssam#define AT_PHNUM	5		/* Number of program headers */
707186352Ssam#define AT_PAGESZ	6		/* System page size */
708186352Ssam#define AT_BASE		7		/* Base address of interpreter */
709186352Ssam#define AT_FLAGS	8		/* Flags */
710186352Ssam#define AT_ENTRY	9		/* Entry point of program */
711186352Ssam#define AT_NOTELF	10		/* Program is not ELF */
712186352Ssam#define AT_UID		11		/* Real uid */
713186352Ssam#define AT_EUID		12		/* Effective uid */
714164426Ssam#define AT_GID		13		/* Real gid */
715#define AT_EGID		14		/* Effective gid */
716#define AT_CLKTCK	17		/* Frequency of times() */
717#define AT_PLATFORM	15		/* String identifying platform.  */
718#define AT_HWCAP	16		/* Machine dependent hints about
719					   processor capabilities.  */
720#define AT_FPUCW	18		/* Used FPU control word.  */
721#define AT_DCACHEBSIZE	19		/* Data cache block size.  */
722#define AT_ICACHEBSIZE	20		/* Instruction cache block size.  */
723#define AT_UCACHEBSIZE	21		/* Unified cache block size.  */
724#define AT_IGNOREPPC	22		/* Entry should be ignored */
725#define	AT_SECURE	23		/* Boolean, was exec setuid-like?  */
726/* Pointer to the global system page used for system calls and other
727   nice things.  */
728#define AT_SYSINFO	32
729#define AT_SYSINFO_EHDR	33 /* Pointer to ELF header of system-supplied DSO.  */
730
731#define AT_SUN_UID      2000    /* Effective user ID.  */
732#define AT_SUN_RUID     2001    /* Real user ID.  */
733#define AT_SUN_GID      2002    /* Effective group ID.  */
734#define AT_SUN_RGID     2003    /* Real group ID.  */
735#define AT_SUN_LDELF    2004    /* Dynamic linker's ELF header.  */
736#define AT_SUN_LDSHDR   2005    /* Dynamic linker's section headers.  */
737#define AT_SUN_LDNAME   2006    /* String giving name of dynamic linker.  */
738#define AT_SUN_LPAGESZ  2007    /* Large pagesize.   */
739#define AT_SUN_PLATFORM 2008    /* Platform name string.  */
740#define AT_SUN_HWCAP    2009	/* Machine dependent hints about
741				   processor capabilities.  */
742#define AT_SUN_IFLUSH   2010    /* Should flush icache? */
743#define AT_SUN_CPU      2011    /* CPU name string.  */
744#define AT_SUN_EMUL_ENTRY 2012	/* COFF entry point address.  */
745#define AT_SUN_EMUL_EXECFD 2013	/* COFF executable file descriptor.  */
746#define AT_SUN_EXECNAME 2014    /* Canonicalized file name given to execve.  */
747#define AT_SUN_MMU      2015    /* String for name of MMU module.   */
748#define AT_SUN_LDDATA   2016    /* Dynamic linker's data segment address.  */
749
750
751#endif /* _ELF_COMMON_H */
752