1 /* ELF support for BFD.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 Written by Fred Fish @ Cygnus Support, from information published
7 in "UNIX System V Release 4, Programmers Guide: ANSI C and
8 Programming Support Tools".
10 This file is part of BFD, the Binary File Descriptor library.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
27 /* This file is part of ELF support for BFD, and contains the portions
28 that are common to both the internal and external representations.
29 For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory)
30 and external (in-file) representations. */
35 /* Fields in e_ident[]. */
37 #define EI_MAG0 0 /* File identification byte 0 index */
38 #define ELFMAG0 0x7F /* Magic number byte 0 */
40 #define EI_MAG1 1 /* File identification byte 1 index */
41 #define ELFMAG1 'E' /* Magic number byte 1 */
43 #define EI_MAG2 2 /* File identification byte 2 index */
44 #define ELFMAG2 'L' /* Magic number byte 2 */
46 #define EI_MAG3 3 /* File identification byte 3 index */
47 #define ELFMAG3 'F' /* Magic number byte 3 */
49 #define EI_CLASS 4 /* File class */
50 #define ELFCLASSNONE 0 /* Invalid class */
51 #define ELFCLASS32 1 /* 32-bit objects */
52 #define ELFCLASS64 2 /* 64-bit objects */
54 #define EI_DATA 5 /* Data encoding */
55 #define ELFDATANONE 0 /* Invalid data encoding */
56 #define ELFDATA2LSB 1 /* 2's complement, little endian */
57 #define ELFDATA2MSB 2 /* 2's complement, big endian */
59 #define EI_VERSION 6 /* File version */
61 #define EI_OSABI 7 /* Operating System/ABI indication */
62 #define ELFOSABI_NONE 0 /* UNIX System V ABI */
63 #define ELFOSABI_HPUX 1 /* HP-UX operating system */
64 #define ELFOSABI_NETBSD 2 /* NetBSD */
65 #define ELFOSABI_LINUX 3 /* GNU/Linux */
66 #define ELFOSABI_HURD 4 /* GNU/Hurd */
67 #define ELFOSABI_SOLARIS 6 /* Solaris */
68 #define ELFOSABI_AIX 7 /* AIX */
69 #define ELFOSABI_IRIX 8 /* IRIX */
70 #define ELFOSABI_FREEBSD 9 /* FreeBSD */
71 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
72 #define ELFOSABI_MODESTO 11 /* Novell Modesto */
73 #define ELFOSABI_OPENBSD 12 /* OpenBSD */
74 #define ELFOSABI_OPENVMS 13 /* OpenVMS */
75 #define ELFOSABI_NSK 14 /* Hewlett-Packard Non-Stop Kernel */
76 #define ELFOSABI_AROS 15 /* AROS */
77 #define ELFOSABI_FENIXOS 16 /* FenixOS */
78 #define ELFOSABI_ARM 97 /* ARM */
79 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
81 #define EI_ABIVERSION 8 /* ABI version */
83 #define EI_PAD 9 /* Start of padding bytes */
86 /* Values for e_type, which identifies the object file type. */
88 #define ET_NONE 0 /* No file type */
89 #define ET_REL 1 /* Relocatable file */
90 #define ET_EXEC 2 /* Executable file */
91 #define ET_DYN 3 /* Shared object file */
92 #define ET_CORE 4 /* Core file */
93 #define ET_LOOS 0xFE00 /* Operating system-specific */
94 #define ET_HIOS 0xFEFF /* Operating system-specific */
95 #define ET_LOPROC 0xFF00 /* Processor-specific */
96 #define ET_HIPROC 0xFFFF /* Processor-specific */
98 /* Values for e_machine, which identifies the architecture. These numbers
99 are officially assigned by registry@sco.com. See below for a list of
100 ad-hoc numbers used during initial development. */
102 #define EM_NONE 0 /* No machine */
103 #define EM_M32 1 /* AT&T WE 32100 */
104 #define EM_SPARC 2 /* SUN SPARC */
105 #define EM_386 3 /* Intel 80386 */
106 #define EM_68K 4 /* Motorola m68k family */
107 #define EM_88K 5 /* Motorola m88k family */
108 #define EM_486 6 /* Intel 80486 *//* Reserved for future use */
109 #define EM_860 7 /* Intel 80860 */
110 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
111 #define EM_S370 9 /* IBM System/370 */
112 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated */
113 #define EM_res011 11 /* Reserved */
114 #define EM_res012 12 /* Reserved */
115 #define EM_res013 13 /* Reserved */
116 #define EM_res014 14 /* Reserved */
117 #define EM_PARISC 15 /* HPPA */
118 #define EM_res016 16 /* Reserved */
119 #define EM_VPP550 17 /* Fujitsu VPP500 */
120 #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
121 #define EM_960 19 /* Intel 80960 */
122 #define EM_PPC 20 /* PowerPC */
123 #define EM_PPC64 21 /* 64-bit PowerPC */
124 #define EM_S390 22 /* IBM S/390 */
125 #define EM_SPU 23 /* Sony/Toshiba/IBM SPU */
126 #define EM_res024 24 /* Reserved */
127 #define EM_res025 25 /* Reserved */
128 #define EM_res026 26 /* Reserved */
129 #define EM_res027 27 /* Reserved */
130 #define EM_res028 28 /* Reserved */
131 #define EM_res029 29 /* Reserved */
132 #define EM_res030 30 /* Reserved */
133 #define EM_res031 31 /* Reserved */
134 #define EM_res032 32 /* Reserved */
135 #define EM_res033 33 /* Reserved */
136 #define EM_res034 34 /* Reserved */
137 #define EM_res035 35 /* Reserved */
138 #define EM_V800 36 /* NEC V800 series */
139 #define EM_FR20 37 /* Fujitsu FR20 */
140 #define EM_RH32 38 /* TRW RH32 */
141 #define EM_MCORE 39 /* Motorola M*Core */ /* May also be taken by Fujitsu MMA */
142 #define EM_RCE 39 /* Old name for MCore */
143 #define EM_ARM 40 /* ARM */
144 #define EM_OLD_ALPHA 41 /* Digital Alpha */
145 #define EM_SH 42 /* Renesas (formerly Hitachi) / SuperH SH */
146 #define EM_SPARCV9 43 /* SPARC v9 64-bit */
147 #define EM_TRICORE 44 /* Siemens Tricore embedded processor */
148 #define EM_ARC 45 /* ARC Cores */
149 #define EM_H8_300 46 /* Renesas (formerly Hitachi) H8/300 */
150 #define EM_H8_300H 47 /* Renesas (formerly Hitachi) H8/300H */
151 #define EM_H8S 48 /* Renesas (formerly Hitachi) H8S */
152 #define EM_H8_500 49 /* Renesas (formerly Hitachi) H8/500 */
153 #define EM_IA_64 50 /* Intel IA-64 Processor */
154 #define EM_MIPS_X 51 /* Stanford MIPS-X */
155 #define EM_COLDFIRE 52 /* Motorola Coldfire */
156 #define EM_68HC12 53 /* Motorola M68HC12 */
157 #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */
158 #define EM_PCP 55 /* Siemens PCP */
159 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */
160 #define EM_NDR1 57 /* Denso NDR1 microprocesspr */
161 #define EM_STARCORE 58 /* Motorola Star*Core processor */
162 #define EM_ME16 59 /* Toyota ME16 processor */
163 #define EM_ST100 60 /* STMicroelectronics ST100 processor */
164 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */
165 #define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */
166 #define EM_PDSP 63 /* Sony DSP Processor */
167 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */
168 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */
169 #define EM_FX66 66 /* Siemens FX66 microcontroller */
170 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */
171 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */
172 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */
173 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */
174 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */
175 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */
176 #define EM_SVX 73 /* Silicon Graphics SVx */
177 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit cpu */
178 #define EM_VAX 75 /* Digital VAX */
179 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
180 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded cpu */
181 #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */
182 #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */
183 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */
184 #define EM_HUANY 81 /* Harvard's machine-independent format */
185 #define EM_PRISM 82 /* SiTera Prism */
186 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
187 #define EM_FR30 84 /* Fujitsu FR30 */
188 #define EM_D10V 85 /* Mitsubishi D10V */
189 #define EM_D30V 86 /* Mitsubishi D30V */
190 #define EM_V850 87 /* NEC v850 */
191 #define EM_M32R 88 /* Renesas M32R (formerly Mitsubishi M32R) */
192 #define EM_MN10300 89 /* Matsushita MN10300 */
193 #define EM_MN10200 90 /* Matsushita MN10200 */
194 #define EM_PJ 91 /* picoJava */
195 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
196 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
197 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
198 #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */
199 #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor */
200 #define EM_NS32K 97 /* National Semiconductor 32000 series */
201 #define EM_TPC 98 /* Tenor Network TPC processor */
202 #define EM_SNP1K 99 /* Trebia SNP 1000 processor */
203 #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller */
204 #define EM_IP2K 101 /* Ubicom IP2022 micro controller */
205 #define EM_MAX 102 /* MAX Processor */
206 #define EM_CR 103 /* National Semiconductor CompactRISC */
207 #define EM_F2MC16 104 /* Fujitsu F2MC16 */
208 #define EM_MSP430 105 /* TI msp430 micro controller */
209 #define EM_BLACKFIN 106 /* ADI Blackfin */
210 #define EM_SE_C33 107 /* S1C33 Family of Seiko Epson processors */
211 #define EM_SEP 108 /* Sharp embedded microprocessor */
212 #define EM_ARCA 109 /* Arca RISC Microprocessor */
213 #define EM_UNICORE 110 /* Microprocessor series from PKU-Unity Ltd. and MPRC of Peking University */
214 #define EM_EXCESS 111 /* eXcess: 16/32/64-bit configurable embedded CPU */
215 #define EM_DXP 112 /* Icera Semiconductor Inc. Deep Execution Processor */
216 #define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */
217 #define EM_CRX 114 /* National Semiconductor CRX */
218 #define EM_XGATE 115 /* Motorola XGATE embedded processor */
219 #define EM_C166 116 /* Infineon C16x/XC16x processor */
220 #define EM_M16C 117 /* Renesas M16C series microprocessors */
221 #define EM_DSPIC30F 118 /* Microchip Technology dsPIC30F Digital Signal Controller */
222 #define EM_CE 119 /* Freescale Communication Engine RISC core */
223 #define EM_M32C 120 /* Renesas M32C series microprocessors */
224 #define EM_res121 121 /* Reserved */
225 #define EM_res122 122 /* Reserved */
226 #define EM_res123 123 /* Reserved */
227 #define EM_res124 124 /* Reserved */
228 #define EM_res125 125 /* Reserved */
229 #define EM_res126 126 /* Reserved */
230 #define EM_res127 127 /* Reserved */
231 #define EM_res128 128 /* Reserved */
232 #define EM_res129 129 /* Reserved */
233 #define EM_res130 130 /* Reserved */
234 #define EM_TSK3000 131 /* Altium TSK3000 core */
235 #define EM_RS08 132 /* Freescale RS08 embedded processor */
236 #define EM_res133 133 /* Reserved */
237 #define EM_ECOG2 134 /* Cyan Technology eCOG2 microprocessor */
238 #define EM_SCORE 135 /* Sunplus Score */
239 #define EM_SCORE7 135 /* Sunplus S+core7 RISC processor */
240 #define EM_DSP24 136 /* New Japan Radio (NJR) 24-bit DSP Processor */
241 #define EM_VIDEOCORE3 137 /* Broadcom VideoCore III processor */
242 #define EM_LATTICEMICO32 138 /* RISC processor for Lattice FPGA architecture */
243 #define EM_SE_C17 139 /* Seiko Epson C17 family */
244 #define EM_TI_C6000 140 /* Texas Instruments TMS320C6000 DSP family */
245 #define EM_TI_C2000 141 /* Texas Instruments TMS320C2000 DSP family */
246 #define EM_TI_C5500 142 /* Texas Instruments TMS320C55x DSP family */
247 #define EM_res143 143 /* Reserved */
248 #define EM_res144 144 /* Reserved */
249 #define EM_res145 145 /* Reserved */
250 #define EM_res146 146 /* Reserved */
251 #define EM_res147 147 /* Reserved */
252 #define EM_res148 148 /* Reserved */
253 #define EM_res149 149 /* Reserved */
254 #define EM_res150 150 /* Reserved */
255 #define EM_res151 151 /* Reserved */
256 #define EM_res152 152 /* Reserved */
257 #define EM_res153 153 /* Reserved */
258 #define EM_res154 154 /* Reserved */
259 #define EM_res155 155 /* Reserved */
260 #define EM_res156 156 /* Reserved */
261 #define EM_res157 157 /* Reserved */
262 #define EM_res158 158 /* Reserved */
263 #define EM_res159 159 /* Reserved */
264 #define EM_MMDSP_PLUS 160 /* STMicroelectronics 64bit VLIW Data Signal Processor */
265 #define EM_CYPRESS_M8C 161 /* Cypress M8C microprocessor */
266 #define EM_R32C 162 /* Renesas R32C series microprocessors */
267 #define EM_TRIMEDIA 163 /* NXP Semiconductors TriMedia architecture family */
268 #define EM_QDSP6 164 /* QUALCOMM DSP6 Processor */
269 #define EM_8051 165 /* Intel 8051 and variants */
270 #define EM_STXP7X 166 /* STMicroelectronics STxP7x family */
271 #define EM_NDS32 167 /* Andes Technology compact code size embedded RISC processor family */
272 #define EM_ECOG1 168 /* Cyan Technology eCOG1X family */
273 #define EM_ECOG1X 168 /* Cyan Technology eCOG1X family */
274 #define EM_MAXQ30 169 /* Dallas Semiconductor MAXQ30 Core Micro-controllers */
275 #define EM_XIMO16 170 /* New Japan Radio (NJR) 16-bit DSP Processor */
276 #define EM_MANIK 171 /* M2000 Reconfigurable RISC Microprocessor */
277 #define EM_CRAYNV2 172 /* Cray Inc. NV2 vector architecture */
278 #define EM_RX 173 /* Renesas RX family */
279 #define EM_METAG 174 /* Imagination Technologies META processor architecture */
280 #define EM_MCST_ELBRUS 175 /* MCST Elbrus general purpose hardware architecture */
281 #define EM_ECOG16 176 /* Cyan Technology eCOG16 family */
282 #define EM_CR16 177 /* National Semiconductor CompactRISC 16-bit processor */
283 #define EM_ETPU 178 /* Freescale Extended Time Processing Unit */
284 #define EM_SLE9X 179 /* Infineon Technologies SLE9X core */
285 #define EM_L1OM 180 /* Intel L1OM */
286 #define EM_INTEL181 181 /* Reserved by Intel */
287 #define EM_INTEL182 182 /* Reserved by Intel */
288 #define EM_res183 183 /* Reserved by ARM */
289 #define EM_res184 184 /* Reserved by ARM */
290 #define EM_AVR32 185 /* Atmel Corporation 32-bit microprocessor family */
291 #define EM_STM8 186 /* STMicroeletronics STM8 8-bit microcontroller */
292 #define EM_TILE64 187 /* Tilera TILE64 multicore architecture family */
293 #define EM_TILEPRO 188 /* Tilera TILEPro multicore architecture family */
294 #define EM_MICROBLAZE 189 /* Xilinx MicroBlaze 32-bit RISC soft processor core */
295 #define EM_CUDA 190 /* NVIDIA CUDA architecture */
297 /* If it is necessary to assign new unofficial EM_* values, please pick large
298 random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
299 with official or non-GNU unofficial values.
301 NOTE: Do not just increment the most recent number by one.
302 Somebody else somewhere will do exactly the same thing, and you
303 will have a collision. Instead, pick a random number.
305 Normally, each entity or maintainer responsible for a machine with an
306 unofficial e_machine number should eventually ask registry@sco.com for
307 an officially blessed number to be added to the list above. */
309 /* Old version of Sparc v9, from before the ABI;
310 This should be removed shortly. */
311 #define EM_OLD_SPARCV9 11
313 /* Old version of PowerPC, this should be removed shortly. */
314 #define EM_PPC_OLD 17
319 /* Old, unofficial value for National Semiconductor CompactRISC - CR16 */
320 #define EM_CR16_OLD 115
322 /* AVR magic number. Written in the absense of an ABI. */
323 #define EM_AVR_OLD 0x1057
325 /* MSP430 magic number. Written in the absense of everything. */
326 #define EM_MSP430_OLD 0x1059
328 /* Morpho MT. Written in the absense of an ABI. */
331 /* FR30 magic number - no EABI available. */
332 #define EM_CYGNUS_FR30 0x3330
334 /* OpenRISC magic number. Written in the absense of an ABI. */
335 #define EM_OPENRISC_OLD 0x3426
337 /* DLX magic number. Written in the absense of an ABI. */
338 #define EM_DLX 0x5aa5
340 /* FRV magic number - no EABI available??. */
341 #define EM_CYGNUS_FRV 0x5441
343 /* Infineon Technologies 16-bit microcontroller with C166-V2 core. */
344 #define EM_XC16X 0x4688
346 /* D10V backend magic number. Written in the absence of an ABI. */
347 #define EM_CYGNUS_D10V 0x7650
349 /* D30V backend magic number. Written in the absence of an ABI. */
350 #define EM_CYGNUS_D30V 0x7676
352 /* Ubicom IP2xxx; Written in the absense of an ABI. */
353 #define EM_IP2K_OLD 0x8217
355 /* (Deprecated) Temporary number for the OpenRISC processor. */
356 #define EM_OR32 0x8472
358 /* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */
359 #define EM_CYGNUS_POWERPC 0x9025
361 /* Alpha backend magic number. Written in the absence of an ABI. */
362 #define EM_ALPHA 0x9026
364 /* Cygnus M32R ELF backend. Written in the absence of an ABI. */
365 #define EM_CYGNUS_M32R 0x9041
367 /* V850 backend magic number. Written in the absense of an ABI. */
368 #define EM_CYGNUS_V850 0x9080
370 /* old S/390 backend magic number. Written in the absence of an ABI. */
371 #define EM_S390_OLD 0xa390
373 /* Old, unofficial value for Xtensa. */
374 #define EM_XTENSA_OLD 0xabc7
376 #define EM_XSTORMY16 0xad45
378 /* mn10200 and mn10300 backend magic numbers.
379 Written in the absense of an ABI. */
380 #define EM_CYGNUS_MN10300 0xbeef
381 #define EM_CYGNUS_MN10200 0xdead
383 /* Renesas M32C and M16C. */
384 #define EM_M32C_OLD 0xFEB0
386 /* Vitesse IQ2000. */
387 #define EM_IQ2000 0xFEBA
389 /* NIOS magic number - no EABI available. */
390 #define EM_NIOS32 0xFEBB
392 #define EM_CYGNUS_MEP 0xF00D /* Toshiba MeP */
394 #define EM_MOXIE 0xFEED /* Moxie */
396 /* Old Sunplus S+core7 backend magic number. Written in the absence of an ABI. */
397 #define EM_SCORE_OLD 95
399 #define EM_MICROBLAZE_OLD 0xbaab /* Old MicroBlaze */
401 /* See the above comment before you add a new EM_* value here. */
403 /* Values for e_version. */
405 #define EV_NONE 0 /* Invalid ELF version */
406 #define EV_CURRENT 1 /* Current version */
408 /* Value for e_phnum. */
409 #define PN_XNUM 0xffff /* Extended numbering */
411 /* Values for program header, p_type field. */
413 #define PT_NULL 0 /* Program header table entry unused */
414 #define PT_LOAD 1 /* Loadable program segment */
415 #define PT_DYNAMIC 2 /* Dynamic linking information */
416 #define PT_INTERP 3 /* Program interpreter */
417 #define PT_NOTE 4 /* Auxiliary information */
418 #define PT_SHLIB 5 /* Reserved, unspecified semantics */
419 #define PT_PHDR 6 /* Entry for header table itself */
420 #define PT_TLS 7 /* Thread local storage segment */
421 #define PT_LOOS 0x60000000 /* OS-specific */
422 #define PT_HIOS 0x6fffffff /* OS-specific */
423 #define PT_LOPROC 0x70000000 /* Processor-specific */
424 #define PT_HIPROC 0x7FFFFFFF /* Processor-specific */
426 #define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550) /* Frame unwind information */
427 #define PT_SUNW_EH_FRAME PT_GNU_EH_FRAME /* Solaris uses the same value */
428 #define PT_GNU_STACK (PT_LOOS + 0x474e551) /* Stack flags */
429 #define PT_GNU_RELRO (PT_LOOS + 0x474e552) /* Read-only after relocation */
431 /* Program segment permissions, in program header p_flags field. */
433 #define PF_X (1 << 0) /* Segment is executable */
434 #define PF_W (1 << 1) /* Segment is writable */
435 #define PF_R (1 << 2) /* Segment is readable */
436 /* #define PF_MASKOS 0x0F000000 *//* OS-specific reserved bits */
437 #define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */
438 #define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */
440 /* Values for section header, sh_type field. */
442 #define SHT_NULL 0 /* Section header table entry unused */
443 #define SHT_PROGBITS 1 /* Program specific (private) data */
444 #define SHT_SYMTAB 2 /* Link editing symbol table */
445 #define SHT_STRTAB 3 /* A string table */
446 #define SHT_RELA 4 /* Relocation entries with addends */
447 #define SHT_HASH 5 /* A symbol hash table */
448 #define SHT_DYNAMIC 6 /* Information for dynamic linking */
449 #define SHT_NOTE 7 /* Information that marks file */
450 #define SHT_NOBITS 8 /* Section occupies no space in file */
451 #define SHT_REL 9 /* Relocation entries, no addends */
452 #define SHT_SHLIB 10 /* Reserved, unspecified semantics */
453 #define SHT_DYNSYM 11 /* Dynamic linking symbol table */
455 #define SHT_INIT_ARRAY 14 /* Array of ptrs to init functions */
456 #define SHT_FINI_ARRAY 15 /* Array of ptrs to finish functions */
457 #define SHT_PREINIT_ARRAY 16 /* Array of ptrs to pre-init funcs */
458 #define SHT_GROUP 17 /* Section contains a section group */
459 #define SHT_SYMTAB_SHNDX 18 /* Indicies for SHN_XINDEX entries */
461 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */
462 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */
464 #define SHT_GNU_INCREMENTAL_INPUTS 0x6fff4700 /* incremental build data */
465 #define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes */
466 #define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */
467 #define SHT_GNU_LIBLIST 0x6ffffff7 /* List of prelink dependencies */
469 /* The next three section types are defined by Solaris, and are named
470 SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU*
472 #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */
473 #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */
474 #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */
476 #define SHT_GNU_verdef SHT_SUNW_verdef
477 #define SHT_GNU_verneed SHT_SUNW_verneed
478 #define SHT_GNU_versym SHT_SUNW_versym
480 #define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */
481 #define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */
482 #define SHT_LOUSER 0x80000000 /* Application-specific semantics */
483 /* #define SHT_HIUSER 0x8FFFFFFF *//* Application-specific semantics */
484 #define SHT_HIUSER 0xFFFFFFFF /* New value, defined in Oct 4, 1999 Draft */
486 /* Values for section header, sh_flags field. */
488 #define SHF_WRITE (1 << 0) /* Writable data during execution */
489 #define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
490 #define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */
491 #define SHF_MERGE (1 << 4) /* Data in this section can be merged */
492 #define SHF_STRINGS (1 << 5) /* Contains null terminated character strings */
493 #define SHF_INFO_LINK (1 << 6) /* sh_info holds section header table index */
494 #define SHF_LINK_ORDER (1 << 7) /* Preserve section ordering when linking */
495 #define SHF_OS_NONCONFORMING (1 << 8) /* OS specific processing required */
496 #define SHF_GROUP (1 << 9) /* Member of a section group */
497 #define SHF_TLS (1 << 10) /* Thread local storage section */
499 /* #define SHF_MASKOS 0x0F000000 *//* OS-specific semantics */
500 #define SHF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */
501 #define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */
503 /* Values of note segment descriptor types for core files. */
505 #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
506 #define NT_FPREGSET 2 /* Contains copy of fpregset struct */
507 #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
508 #define NT_TASKSTRUCT 4 /* Contains copy of task struct */
509 #define NT_AUXV 6 /* Contains copy of Elfxx_auxv_t */
510 #define NT_PRXFPREG 0x46e62b7f /* Contains a user_xfpregs_struct; */
511 /* note name must be "LINUX". */
512 #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
513 /* note name must be "LINUX". */
514 #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
515 /* note name must be "LINUX". */
516 #define NT_X86_XSTATE 0x202 /* x86 XSAVE extended state */
517 /* note name must be "LINUX". */
518 #define NT_S390_HIGH_GPRS 0x300 /* S/390 upper halves of GPRs */
519 /* note name must be "LINUX". */
521 /* Note segments for core files on dir-style procfs systems. */
523 #define NT_PSTATUS 10 /* Has a struct pstatus */
524 #define NT_FPREGS 12 /* Has a struct fpregset */
525 #define NT_PSINFO 13 /* Has a struct psinfo */
526 #define NT_LWPSTATUS 16 /* Has a struct lwpstatus_t */
527 #define NT_LWPSINFO 17 /* Has a struct lwpsinfo_t */
528 #define NT_WIN32PSTATUS 18 /* Has a struct win32_pstatus */
531 /* Note segments for core files on NetBSD systems. Note name
532 must start with "NetBSD-CORE". */
534 #define NT_NETBSDCORE_PROCINFO 1 /* Has a struct procinfo */
535 #define NT_NETBSDCORE_FIRSTMACH 32 /* start of machdep note types */
538 /* Note segments for core files on OpenBSD systems. Note name is
541 #define NT_OPENBSD_PROCINFO 10
542 #define NT_OPENBSD_AUXV 11
543 #define NT_OPENBSD_REGS 20
544 #define NT_OPENBSD_FPREGS 21
545 #define NT_OPENBSD_XFPREGS 22
546 #define NT_OPENBSD_WCOOKIE 23
549 /* Note segments for core files on SPU systems. Note name
550 must start with "SPU/". */
554 /* Values of note segment descriptor types for object files. */
556 #define NT_VERSION 1 /* Contains a version string. */
557 #define NT_ARCH 2 /* Contains an architecture string. */
559 /* Values for notes in non-core files using name "GNU". */
561 #define NT_GNU_ABI_TAG 1
562 #define NT_GNU_HWCAP 2 /* Used by ld.so and kernel vDSO. */
563 #define NT_GNU_BUILD_ID 3 /* Generated by ld --build-id. */
564 #define NT_GNU_GOLD_VERSION 4 /* Generated by gold. */
566 /* Values used in GNU .note.ABI-tag notes (NT_GNU_ABI_TAG). */
567 #define GNU_ABI_TAG_LINUX 0
568 #define GNU_ABI_TAG_HURD 1
569 #define GNU_ABI_TAG_SOLARIS 2
570 #define GNU_ABI_TAG_FREEBSD 3
571 #define GNU_ABI_TAG_NETBSD 4
573 /* Values for NetBSD .note.netbsd.ident notes. Note name is "NetBSD". */
575 #define NT_NETBSD_IDENT 1
577 /* Values for OpenBSD .note.openbsd.ident notes. Note name is "OpenBSD". */
579 #define NT_OPENBSD_IDENT 1
581 /* Values for FreeBSD .note.ABI-tag notes. Note name is "FreeBSD". */
583 #define NT_FREEBSD_ABI_TAG 1
585 /* These three macros disassemble and assemble a symbol table st_info field,
586 which contains the symbol binding and symbol type. The STB_ and STT_
587 defines identify the binding and type. */
589 #define ELF_ST_BIND(val) (((unsigned int)(val)) >> 4)
590 #define ELF_ST_TYPE(val) ((val) & 0xF)
591 #define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF))
593 /* The 64bit and 32bit versions of these macros are identical, but
594 the ELF spec defines them, so here they are. */
595 #define ELF32_ST_BIND ELF_ST_BIND
596 #define ELF32_ST_TYPE ELF_ST_TYPE
597 #define ELF32_ST_INFO ELF_ST_INFO
598 #define ELF64_ST_BIND ELF_ST_BIND
599 #define ELF64_ST_TYPE ELF_ST_TYPE
600 #define ELF64_ST_INFO ELF_ST_INFO
602 /* This macro disassembles and assembles a symbol's visibility into
603 the st_other field. The STV_ defines specify the actual visibility. */
605 #define ELF_ST_VISIBILITY(v) ((v) & 0x3)
606 /* The remaining bits in the st_other field are not currently used.
607 They should be set to zero. */
609 #define ELF32_ST_VISIBILITY ELF_ST_VISIBILITY
610 #define ELF64_ST_VISIBILITY ELF_ST_VISIBILITY
613 #define STN_UNDEF 0 /* Undefined symbol index */
615 #define STB_LOCAL 0 /* Symbol not visible outside obj */
616 #define STB_GLOBAL 1 /* Symbol visible outside obj */
617 #define STB_WEAK 2 /* Like globals, lower precedence */
618 #define STB_LOOS 10 /* OS-specific semantics */
619 #define STB_GNU_UNIQUE 10 /* Symbol is unique in namespace */
620 #define STB_HIOS 12 /* OS-specific semantics */
621 #define STB_LOPROC 13 /* Processor-specific semantics */
622 #define STB_HIPROC 15 /* Processor-specific semantics */
624 #define STT_NOTYPE 0 /* Symbol type is unspecified */
625 #define STT_OBJECT 1 /* Symbol is a data object */
626 #define STT_FUNC 2 /* Symbol is a code object */
627 #define STT_SECTION 3 /* Symbol associated with a section */
628 #define STT_FILE 4 /* Symbol gives a file name */
629 #define STT_COMMON 5 /* An uninitialised common block */
630 #define STT_TLS 6 /* Thread local data object */
631 #define STT_RELC 8 /* Complex relocation expression */
632 #define STT_SRELC 9 /* Signed Complex relocation expression */
633 #define STT_LOOS 10 /* OS-specific semantics */
634 #define STT_GNU_IFUNC 10 /* Symbol is an indirect code object */
635 #define STT_HIOS 12 /* OS-specific semantics */
636 #define STT_LOPROC 13 /* Processor-specific semantics */
637 #define STT_HIPROC 15 /* Processor-specific semantics */
639 /* The following constants control how a symbol may be accessed once it has
640 become part of an executable or shared library. */
642 #define STV_DEFAULT 0 /* Visibility is specified by binding type */
643 #define STV_INTERNAL 1 /* OS specific version of STV_HIDDEN */
644 #define STV_HIDDEN 2 /* Can only be seen inside currect component */
645 #define STV_PROTECTED 3 /* Treat as STB_LOCAL inside current component */
647 /* Relocation info handling macros. */
649 #define ELF32_R_SYM(i) ((i) >> 8)
650 #define ELF32_R_TYPE(i) ((i) & 0xff)
651 #define ELF32_R_INFO(s,t) (((s) << 8) + ((t) & 0xff))
653 #define ELF64_R_SYM(i) ((i) >> 32)
654 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)
655 #define ELF64_R_INFO(s,t) (((bfd_vma) (s) << 31 << 1) + (bfd_vma) (t))
657 /* Dynamic section tags. */
661 #define DT_PLTRELSZ 2
675 #define DT_SYMBOLIC 16
681 #define DT_TEXTREL 22
683 #define DT_BIND_NOW 24
684 #define DT_INIT_ARRAY 25
685 #define DT_FINI_ARRAY 26
686 #define DT_INIT_ARRAYSZ 27
687 #define DT_FINI_ARRAYSZ 28
688 #define DT_RUNPATH 29
690 #define DT_ENCODING 32
691 #define DT_PREINIT_ARRAY 32
692 #define DT_PREINIT_ARRAYSZ 33
694 /* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
695 for DT_LOOS and DT_HIOS. Some implementations however, use
696 values outside of the new range (see below). */
697 #define OLD_DT_LOOS 0x60000000
698 #define DT_LOOS 0x6000000d
699 #define DT_HIOS 0x6ffff000
700 #define OLD_DT_HIOS 0x6fffffff
702 #define DT_LOPROC 0x70000000
703 #define DT_HIPROC 0x7fffffff
705 /* The next 2 dynamic tag ranges, integer value range (DT_VALRNGLO to
706 DT_VALRNGHI) and virtual address range (DT_ADDRRNGLO to DT_ADDRRNGHI),
707 are used on Solaris. We support them everywhere. Note these values
708 lie outside of the (new) range for OS specific values. This is a
709 deliberate special case and we maintain it for backwards compatability.
711 #define DT_VALRNGLO 0x6ffffd00
712 #define DT_GNU_PRELINKED 0x6ffffdf5
713 #define DT_GNU_CONFLICTSZ 0x6ffffdf6
714 #define DT_GNU_LIBLISTSZ 0x6ffffdf7
715 #define DT_CHECKSUM 0x6ffffdf8
716 #define DT_PLTPADSZ 0x6ffffdf9
717 #define DT_MOVEENT 0x6ffffdfa
718 #define DT_MOVESZ 0x6ffffdfb
719 #define DT_FEATURE 0x6ffffdfc
720 #define DT_POSFLAG_1 0x6ffffdfd
721 #define DT_SYMINSZ 0x6ffffdfe
722 #define DT_SYMINENT 0x6ffffdff
723 #define DT_VALRNGHI 0x6ffffdff
725 #define DT_ADDRRNGLO 0x6ffffe00
726 #define DT_GNU_HASH 0x6ffffef5
727 #define DT_TLSDESC_PLT 0x6ffffef6
728 #define DT_TLSDESC_GOT 0x6ffffef7
729 #define DT_GNU_CONFLICT 0x6ffffef8
730 #define DT_GNU_LIBLIST 0x6ffffef9
731 #define DT_CONFIG 0x6ffffefa
732 #define DT_DEPAUDIT 0x6ffffefb
733 #define DT_AUDIT 0x6ffffefc
734 #define DT_PLTPAD 0x6ffffefd
735 #define DT_MOVETAB 0x6ffffefe
736 #define DT_SYMINFO 0x6ffffeff
737 #define DT_ADDRRNGHI 0x6ffffeff
739 #define DT_RELACOUNT 0x6ffffff9
740 #define DT_RELCOUNT 0x6ffffffa
741 #define DT_FLAGS_1 0x6ffffffb
742 #define DT_VERDEF 0x6ffffffc
743 #define DT_VERDEFNUM 0x6ffffffd
744 #define DT_VERNEED 0x6ffffffe
745 #define DT_VERNEEDNUM 0x6fffffff
747 /* This tag is a GNU extension to the Solaris version scheme. */
748 #define DT_VERSYM 0x6ffffff0
750 #define DT_LOPROC 0x70000000
751 #define DT_HIPROC 0x7fffffff
753 /* These section tags are used on Solaris. We support them
754 everywhere, and hope they do not conflict. */
756 #define DT_AUXILIARY 0x7ffffffd
757 #define DT_USED 0x7ffffffe
758 #define DT_FILTER 0x7fffffff
761 /* Values used in DT_FEATURE .dynamic entry. */
762 #define DTF_1_PARINIT 0x00000001
765 http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1
767 DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value
768 defined here is the same as the one in <sys/link.h> on Solaris 8. */
769 #define DTF_1_CONFEXP 0x00000002
771 /* Flag values used in the DT_POSFLAG_1 .dynamic entry. */
772 #define DF_P1_LAZYLOAD 0x00000001
773 #define DF_P1_GROUPPERM 0x00000002
775 /* Flag value in in the DT_FLAGS_1 .dynamic entry. */
776 #define DF_1_NOW 0x00000001
777 #define DF_1_GLOBAL 0x00000002
778 #define DF_1_GROUP 0x00000004
779 #define DF_1_NODELETE 0x00000008
780 #define DF_1_LOADFLTR 0x00000010
781 #define DF_1_INITFIRST 0x00000020
782 #define DF_1_NOOPEN 0x00000040
783 #define DF_1_ORIGIN 0x00000080
784 #define DF_1_DIRECT 0x00000100
785 #define DF_1_TRANS 0x00000200
786 #define DF_1_INTERPOSE 0x00000400
787 #define DF_1_NODEFLIB 0x00000800
788 #define DF_1_NODUMP 0x00001000
789 #define DF_1_CONLFAT 0x00002000
791 /* Flag values for the DT_FLAGS entry. */
792 #define DF_ORIGIN (1 << 0)
793 #define DF_SYMBOLIC (1 << 1)
794 #define DF_TEXTREL (1 << 2)
795 #define DF_BIND_NOW (1 << 3)
796 #define DF_STATIC_TLS (1 << 4)
798 /* These constants are used for the version number of a Elf32_Verdef
801 #define VER_DEF_NONE 0
802 #define VER_DEF_CURRENT 1
804 /* These constants appear in the vd_flags field of a Elf32_Verdef
807 #define VER_FLG_BASE 0x1
808 #define VER_FLG_WEAK 0x2
810 /* These special constants can be found in an Elf32_Versym field. */
812 #define VER_NDX_LOCAL 0
813 #define VER_NDX_GLOBAL 1
815 /* These constants are used for the version number of a Elf32_Verneed
818 #define VER_NEED_NONE 0
819 #define VER_NEED_CURRENT 1
821 /* This flag appears in a Versym structure. It means that the symbol
822 is hidden, and is only visible with an explicit version number.
823 This is a GNU extension. */
825 #define VERSYM_HIDDEN 0x8000
827 /* This is the mask for the rest of the Versym information. */
829 #define VERSYM_VERSION 0x7fff
831 /* This is a special token which appears as part of a symbol name. It
832 indictes that the rest of the name is actually the name of a
833 version node, and is not part of the actual name. This is a GNU
834 extension. For example, the symbol name `stat@ver2' is taken to
835 mean the symbol `stat' in version `ver2'. */
837 #define ELF_VER_CHR '@'
839 /* Possible values for si_boundto. */
841 #define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */
842 #define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */
843 #define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */
845 /* Possible bitmasks for si_flags. */
847 #define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */
848 #define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */
849 #define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */
850 #define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy loaded */
852 /* Syminfo version values. */
854 #define SYMINFO_NONE 0
855 #define SYMINFO_CURRENT 1
856 #define SYMINFO_NUM 2
858 /* Section Group Flags. */
860 #define GRP_COMDAT 0x1 /* A COMDAT group */
862 /* Auxv a_type values. */
864 #define AT_NULL 0 /* End of vector */
865 #define AT_IGNORE 1 /* Entry should be ignored */
866 #define AT_EXECFD 2 /* File descriptor of program */
867 #define AT_PHDR 3 /* Program headers for program */
868 #define AT_PHENT 4 /* Size of program header entry */
869 #define AT_PHNUM 5 /* Number of program headers */
870 #define AT_PAGESZ 6 /* System page size */
871 #define AT_BASE 7 /* Base address of interpreter */
872 #define AT_FLAGS 8 /* Flags */
873 #define AT_ENTRY 9 /* Entry point of program */
874 #define AT_NOTELF 10 /* Program is not ELF */
875 #define AT_UID 11 /* Real uid */
876 #define AT_EUID 12 /* Effective uid */
877 #define AT_GID 13 /* Real gid */
878 #define AT_EGID 14 /* Effective gid */
879 #define AT_CLKTCK 17 /* Frequency of times() */
880 #define AT_PLATFORM 15 /* String identifying platform. */
881 #define AT_HWCAP 16 /* Machine dependent hints about
882 processor capabilities. */
883 #define AT_FPUCW 18 /* Used FPU control word. */
884 #define AT_DCACHEBSIZE 19 /* Data cache block size. */
885 #define AT_ICACHEBSIZE 20 /* Instruction cache block size. */
886 #define AT_UCACHEBSIZE 21 /* Unified cache block size. */
887 #define AT_IGNOREPPC 22 /* Entry should be ignored */
888 #define AT_SECURE 23 /* Boolean, was exec setuid-like? */
889 #define AT_BASE_PLATFORM 24 /* String identifying real platform,
890 may differ from AT_PLATFORM. */
891 #define AT_RANDOM 25 /* Address of 16 random bytes. */
892 #define AT_EXECFN 31 /* Filename of executable. */
893 /* Pointer to the global system page used for system calls and other
895 #define AT_SYSINFO 32
896 #define AT_SYSINFO_EHDR 33 /* Pointer to ELF header of system-supplied DSO. */
898 #define AT_SUN_UID 2000 /* Effective user ID. */
899 #define AT_SUN_RUID 2001 /* Real user ID. */
900 #define AT_SUN_GID 2002 /* Effective group ID. */
901 #define AT_SUN_RGID 2003 /* Real group ID. */
902 #define AT_SUN_LDELF 2004 /* Dynamic linker's ELF header. */
903 #define AT_SUN_LDSHDR 2005 /* Dynamic linker's section headers. */
904 #define AT_SUN_LDNAME 2006 /* String giving name of dynamic linker. */
905 #define AT_SUN_LPAGESZ 2007 /* Large pagesize. */
906 #define AT_SUN_PLATFORM 2008 /* Platform name string. */
907 #define AT_SUN_HWCAP 2009 /* Machine dependent hints about
908 processor capabilities. */
909 #define AT_SUN_IFLUSH 2010 /* Should flush icache? */
910 #define AT_SUN_CPU 2011 /* CPU name string. */
911 #define AT_SUN_EMUL_ENTRY 2012 /* COFF entry point address. */
912 #define AT_SUN_EMUL_EXECFD 2013 /* COFF executable file descriptor. */
913 #define AT_SUN_EXECNAME 2014 /* Canonicalized file name given to execve. */
914 #define AT_SUN_MMU 2015 /* String for name of MMU module. */
915 #define AT_SUN_LDDATA 2016 /* Dynamic linker's data segment address. */
916 #define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel. */
919 #endif /* _ELF_COMMON_H */
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