Commit | Line | Data |
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252b5132 | 1 | /* MIPS ELF support for BFD. |
ae990a1a | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
638632bd | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from | |
6 | information in the System V Application Binary Interface, MIPS | |
7 | Processor Supplement. | |
8 | ||
9 | This file is part of BFD, the Binary File Descriptor library. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
24 | ||
25 | /* This file holds definitions specific to the MIPS ELF ABI. Note | |
26 | that most of this is not actually implemented by BFD. */ | |
27 | ||
28 | #ifndef _ELF_MIPS_H | |
29 | #define _ELF_MIPS_H | |
30 | ||
31 | #include "elf/reloc-macros.h" | |
32 | ||
33 | /* Relocation types. */ | |
34 | START_RELOC_NUMBERS (elf_mips_reloc_type) | |
35 | RELOC_NUMBER (R_MIPS_NONE, 0) | |
36 | RELOC_NUMBER (R_MIPS_16, 1) | |
ae990a1a AM |
37 | RELOC_NUMBER (R_MIPS_32, 2) /* In Elf 64: alias R_MIPS_ADD */ |
38 | RELOC_NUMBER (R_MIPS_REL32, 3) /* In Elf 64: alias R_MIPS_REL */ | |
252b5132 RH |
39 | RELOC_NUMBER (R_MIPS_26, 4) |
40 | RELOC_NUMBER (R_MIPS_HI16, 5) | |
41 | RELOC_NUMBER (R_MIPS_LO16, 6) | |
ae990a1a | 42 | RELOC_NUMBER (R_MIPS_GPREL16, 7) /* In Elf 64: alias R_MIPS_GPREL */ |
252b5132 | 43 | RELOC_NUMBER (R_MIPS_LITERAL, 8) |
ae990a1a | 44 | RELOC_NUMBER (R_MIPS_GOT16, 9) /* In Elf 64: alias R_MIPS_GOT */ |
252b5132 | 45 | RELOC_NUMBER (R_MIPS_PC16, 10) |
ae990a1a | 46 | RELOC_NUMBER (R_MIPS_CALL16, 11) /* In Elf 64: alias R_MIPS_CALL */ |
252b5132 RH |
47 | RELOC_NUMBER (R_MIPS_GPREL32, 12) |
48 | /* The remaining relocs are defined on Irix, although they are not | |
49 | in the MIPS ELF ABI. */ | |
50 | RELOC_NUMBER (R_MIPS_UNUSED1, 13) | |
51 | RELOC_NUMBER (R_MIPS_UNUSED2, 14) | |
52 | RELOC_NUMBER (R_MIPS_UNUSED3, 15) | |
53 | RELOC_NUMBER (R_MIPS_SHIFT5, 16) | |
54 | RELOC_NUMBER (R_MIPS_SHIFT6, 17) | |
55 | RELOC_NUMBER (R_MIPS_64, 18) | |
56 | RELOC_NUMBER (R_MIPS_GOT_DISP, 19) | |
57 | RELOC_NUMBER (R_MIPS_GOT_PAGE, 20) | |
58 | RELOC_NUMBER (R_MIPS_GOT_OFST, 21) | |
59 | RELOC_NUMBER (R_MIPS_GOT_HI16, 22) | |
60 | RELOC_NUMBER (R_MIPS_GOT_LO16, 23) | |
61 | RELOC_NUMBER (R_MIPS_SUB, 24) | |
62 | RELOC_NUMBER (R_MIPS_INSERT_A, 25) | |
63 | RELOC_NUMBER (R_MIPS_INSERT_B, 26) | |
64 | RELOC_NUMBER (R_MIPS_DELETE, 27) | |
65 | RELOC_NUMBER (R_MIPS_HIGHER, 28) | |
66 | RELOC_NUMBER (R_MIPS_HIGHEST, 29) | |
67 | RELOC_NUMBER (R_MIPS_CALL_HI16, 30) | |
68 | RELOC_NUMBER (R_MIPS_CALL_LO16, 31) | |
69 | RELOC_NUMBER (R_MIPS_SCN_DISP, 32) | |
70 | RELOC_NUMBER (R_MIPS_REL16, 33) | |
71 | RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34) | |
72 | RELOC_NUMBER (R_MIPS_PJUMP, 35) | |
73 | RELOC_NUMBER (R_MIPS_RELGOT, 36) | |
74 | RELOC_NUMBER (R_MIPS_JALR, 37) | |
75 | RELOC_NUMBER (R_MIPS_max, 38) | |
76 | /* These relocs are used for the mips16. */ | |
77 | RELOC_NUMBER (R_MIPS16_26, 100) | |
78 | RELOC_NUMBER (R_MIPS16_GPREL, 101) | |
bb2d6cd7 GK |
79 | /* These are GNU extensions to handle embedded-pic. */ |
80 | RELOC_NUMBER (R_MIPS_PC32, 248) | |
81 | RELOC_NUMBER (R_MIPS_PC64, 249) | |
82 | RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250) | |
83 | RELOC_NUMBER (R_MIPS_GNU_REL_LO16, 251) | |
84 | RELOC_NUMBER (R_MIPS_GNU_REL_HI16, 252) | |
252b5132 RH |
85 | /* These are GNU extensions to enable C++ vtable garbage collection. */ |
86 | RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253) | |
87 | RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254) | |
1b452ec6 | 88 | END_RELOC_NUMBERS (R_MIPS_maxext) |
252b5132 RH |
89 | |
90 | /* Processor specific flags for the ELF header e_flags field. */ | |
91 | ||
92 | /* At least one .noreorder directive appears in the source. */ | |
93 | #define EF_MIPS_NOREORDER 0x00000001 | |
94 | ||
95 | /* File contains position independent code. */ | |
96 | #define EF_MIPS_PIC 0x00000002 | |
97 | ||
98 | /* Code in file uses the standard calling sequence for calling | |
99 | position independent code. */ | |
100 | #define EF_MIPS_CPIC 0x00000004 | |
101 | ||
ae990a1a AM |
102 | /* Code in file uses UCODE (obsolete) */ |
103 | #define EF_MIPS_UCODE 0x00000010 | |
104 | ||
252b5132 RH |
105 | /* Code in file uses new ABI (-n32 on Irix 6). */ |
106 | #define EF_MIPS_ABI2 0x00000020 | |
107 | ||
ae990a1a AM |
108 | /* Process the .MIPS.options section first by ld */ |
109 | #define EF_MIPS_OPTIONS_FIRST 0x00000080 | |
110 | ||
111 | /* Architectural Extensions used by this file */ | |
112 | #define EF_MIPS_ARCH_ASE 0x0f000000 | |
113 | ||
114 | /* Use MDMX multimedia extensions */ | |
115 | #define EF_MIPS_ARCH_ASE_MDMX 0x08000000 | |
116 | ||
117 | /* Use MIPS-16 ISA extensions */ | |
118 | #define EF_MIPS_ARCH_ASE_M16 0x04000000 | |
119 | ||
cc51ea79 | 120 | /* Indicates code compiled for a 64-bit machine in 32-bit mode. |
252b5132 RH |
121 | (regs are 32-bits wide.) */ |
122 | #define EF_MIPS_32BITMODE 0x00000100 | |
123 | ||
124 | /* Four bit MIPS architecture field. */ | |
125 | #define EF_MIPS_ARCH 0xf0000000 | |
126 | ||
127 | /* -mips1 code. */ | |
128 | #define E_MIPS_ARCH_1 0x00000000 | |
129 | ||
130 | /* -mips2 code. */ | |
131 | #define E_MIPS_ARCH_2 0x10000000 | |
132 | ||
133 | /* -mips3 code. */ | |
134 | #define E_MIPS_ARCH_3 0x20000000 | |
135 | ||
136 | /* -mips4 code. */ | |
137 | #define E_MIPS_ARCH_4 0x30000000 | |
138 | ||
84ea6cf2 | 139 | /* -mips5 code. */ |
bf40d919 | 140 | #define E_MIPS_ARCH_5 0x40000000 |
84ea6cf2 | 141 | |
e7af610e | 142 | /* -mips32 code. */ |
bf40d919 | 143 | #define E_MIPS_ARCH_32 0x50000000 |
e7af610e | 144 | |
84ea6cf2 | 145 | /* -mips64 code. */ |
bf40d919 | 146 | #define E_MIPS_ARCH_64 0x60000000 |
84ea6cf2 | 147 | |
af7ee8bf CD |
148 | /* -mips32r2 code. */ |
149 | #define E_MIPS_ARCH_32R2 0x70000000 | |
150 | ||
252b5132 RH |
151 | /* The ABI of the file. Also see EF_MIPS_ABI2 above. */ |
152 | #define EF_MIPS_ABI 0x0000F000 | |
153 | ||
154 | /* The original o32 abi. */ | |
155 | #define E_MIPS_ABI_O32 0x00001000 | |
156 | ||
157 | /* O32 extended to work on 64 bit architectures */ | |
158 | #define E_MIPS_ABI_O64 0x00002000 | |
159 | ||
160 | /* EABI in 32 bit mode */ | |
161 | #define E_MIPS_ABI_EABI32 0x00003000 | |
162 | ||
163 | /* EABI in 64 bit mode */ | |
164 | #define E_MIPS_ABI_EABI64 0x00004000 | |
165 | ||
166 | ||
167 | /* Machine variant if we know it. This field was invented at Cygnus, | |
168 | but it is hoped that other vendors will adopt it. If some standard | |
169 | is developed, this code should be changed to follow it. */ | |
170 | ||
171 | #define EF_MIPS_MACH 0x00FF0000 | |
172 | ||
173 | /* Cygnus is choosing values between 80 and 9F; | |
174 | 00 - 7F should be left for a future standard; | |
175 | the rest are open. */ | |
176 | ||
177 | #define E_MIPS_MACH_3900 0x00810000 | |
252b5132 RH |
178 | #define E_MIPS_MACH_4010 0x00820000 |
179 | #define E_MIPS_MACH_4100 0x00830000 | |
180 | #define E_MIPS_MACH_4650 0x00850000 | |
00707a0e | 181 | #define E_MIPS_MACH_4120 0x00870000 |
252b5132 | 182 | #define E_MIPS_MACH_4111 0x00880000 |
c6c98b38 | 183 | #define E_MIPS_MACH_SB1 0x008a0000 |
00707a0e RS |
184 | #define E_MIPS_MACH_5400 0x00910000 |
185 | #define E_MIPS_MACH_5500 0x00980000 | |
252b5132 RH |
186 | \f |
187 | /* Processor specific section indices. These sections do not actually | |
188 | exist. Symbols with a st_shndx field corresponding to one of these | |
189 | values have a special meaning. */ | |
190 | ||
191 | /* Defined and allocated common symbol. Value is virtual address. If | |
192 | relocated, alignment must be preserved. */ | |
193 | #define SHN_MIPS_ACOMMON 0xff00 | |
194 | ||
195 | /* Defined and allocated text symbol. Value is virtual address. | |
196 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
197 | #define SHN_MIPS_TEXT 0xff01 | |
198 | ||
199 | /* Defined and allocated data symbol. Value is virtual address. | |
200 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
201 | #define SHN_MIPS_DATA 0xff02 | |
202 | ||
203 | /* Small common symbol. */ | |
204 | #define SHN_MIPS_SCOMMON 0xff03 | |
205 | ||
206 | /* Small undefined symbol. */ | |
207 | #define SHN_MIPS_SUNDEFINED 0xff04 | |
208 | \f | |
209 | /* Processor specific section types. */ | |
210 | ||
211 | /* Section contains the set of dynamic shared objects used when | |
212 | statically linking. */ | |
213 | #define SHT_MIPS_LIBLIST 0x70000000 | |
214 | ||
215 | /* I'm not sure what this is, but it's used on Irix 5. */ | |
216 | #define SHT_MIPS_MSYM 0x70000001 | |
217 | ||
218 | /* Section contains list of symbols whose definitions conflict with | |
219 | symbols defined in shared objects. */ | |
220 | #define SHT_MIPS_CONFLICT 0x70000002 | |
221 | ||
222 | /* Section contains the global pointer table. */ | |
223 | #define SHT_MIPS_GPTAB 0x70000003 | |
224 | ||
225 | /* Section contains microcode information. The exact format is | |
226 | unspecified. */ | |
227 | #define SHT_MIPS_UCODE 0x70000004 | |
228 | ||
229 | /* Section contains some sort of debugging information. The exact | |
230 | format is unspecified. It's probably ECOFF symbols. */ | |
231 | #define SHT_MIPS_DEBUG 0x70000005 | |
232 | ||
233 | /* Section contains register usage information. */ | |
234 | #define SHT_MIPS_REGINFO 0x70000006 | |
235 | ||
236 | /* ??? */ | |
237 | #define SHT_MIPS_PACKAGE 0x70000007 | |
238 | ||
239 | /* ??? */ | |
240 | #define SHT_MIPS_PACKSYM 0x70000008 | |
241 | ||
242 | /* ??? */ | |
243 | #define SHT_MIPS_RELD 0x70000009 | |
244 | ||
245 | /* Section contains interface information. */ | |
246 | #define SHT_MIPS_IFACE 0x7000000b | |
247 | ||
248 | /* Section contains description of contents of another section. */ | |
249 | #define SHT_MIPS_CONTENT 0x7000000c | |
250 | ||
251 | /* Section contains miscellaneous options. */ | |
252 | #define SHT_MIPS_OPTIONS 0x7000000d | |
253 | ||
254 | /* ??? */ | |
255 | #define SHT_MIPS_SHDR 0x70000010 | |
256 | ||
257 | /* ??? */ | |
258 | #define SHT_MIPS_FDESC 0x70000011 | |
259 | ||
260 | /* ??? */ | |
261 | #define SHT_MIPS_EXTSYM 0x70000012 | |
262 | ||
263 | /* ??? */ | |
264 | #define SHT_MIPS_DENSE 0x70000013 | |
265 | ||
266 | /* ??? */ | |
267 | #define SHT_MIPS_PDESC 0x70000014 | |
268 | ||
269 | /* ??? */ | |
270 | #define SHT_MIPS_LOCSYM 0x70000015 | |
271 | ||
272 | /* ??? */ | |
273 | #define SHT_MIPS_AUXSYM 0x70000016 | |
274 | ||
275 | /* ??? */ | |
276 | #define SHT_MIPS_OPTSYM 0x70000017 | |
277 | ||
278 | /* ??? */ | |
279 | #define SHT_MIPS_LOCSTR 0x70000018 | |
280 | ||
281 | /* ??? */ | |
282 | #define SHT_MIPS_LINE 0x70000019 | |
283 | ||
284 | /* ??? */ | |
285 | #define SHT_MIPS_RFDESC 0x7000001a | |
286 | ||
ae990a1a | 287 | /* Delta C++: symbol table */ |
252b5132 RH |
288 | #define SHT_MIPS_DELTASYM 0x7000001b |
289 | ||
ae990a1a | 290 | /* Delta C++: instance table */ |
252b5132 RH |
291 | #define SHT_MIPS_DELTAINST 0x7000001c |
292 | ||
ae990a1a | 293 | /* Delta C++: class table */ |
252b5132 RH |
294 | #define SHT_MIPS_DELTACLASS 0x7000001d |
295 | ||
296 | /* DWARF debugging section. */ | |
297 | #define SHT_MIPS_DWARF 0x7000001e | |
298 | ||
ae990a1a | 299 | /* Delta C++: declarations */ |
252b5132 RH |
300 | #define SHT_MIPS_DELTADECL 0x7000001f |
301 | ||
302 | /* List of libraries the binary depends on. Includes a time stamp, version | |
303 | number. */ | |
304 | #define SHT_MIPS_SYMBOL_LIB 0x70000020 | |
305 | ||
306 | /* Events section. */ | |
307 | #define SHT_MIPS_EVENTS 0x70000021 | |
308 | ||
309 | /* ??? */ | |
310 | #define SHT_MIPS_TRANSLATE 0x70000022 | |
311 | ||
ae990a1a | 312 | /* Special pixie sections */ |
252b5132 RH |
313 | #define SHT_MIPS_PIXIE 0x70000023 |
314 | ||
ae990a1a | 315 | /* Address translation table (for debug info) */ |
252b5132 RH |
316 | #define SHT_MIPS_XLATE 0x70000024 |
317 | ||
ae990a1a | 318 | /* SGI internal address translation table (for debug info) */ |
252b5132 RH |
319 | #define SHT_MIPS_XLATE_DEBUG 0x70000025 |
320 | ||
ae990a1a | 321 | /* Intermediate code */ |
252b5132 RH |
322 | #define SHT_MIPS_WHIRL 0x70000026 |
323 | ||
ae990a1a | 324 | /* C++ exception handling region info */ |
252b5132 RH |
325 | #define SHT_MIPS_EH_REGION 0x70000027 |
326 | ||
ae990a1a | 327 | /* Obsolete address translation table (for debug info) */ |
252b5132 RH |
328 | #define SHT_MIPS_XLATE_OLD 0x70000028 |
329 | ||
ae990a1a | 330 | /* Runtime procedure descriptor table exception information (ucode) ??? */ |
252b5132 RH |
331 | #define SHT_MIPS_PDR_EXCEPTION 0x70000029 |
332 | ||
333 | ||
334 | /* A section of type SHT_MIPS_LIBLIST contains an array of the | |
335 | following structure. The sh_link field is the section index of the | |
336 | string table. The sh_info field is the number of entries in the | |
337 | section. */ | |
338 | typedef struct | |
339 | { | |
340 | /* String table index for name of shared object. */ | |
341 | unsigned long l_name; | |
342 | /* Time stamp. */ | |
343 | unsigned long l_time_stamp; | |
344 | /* Checksum of symbol names and common sizes. */ | |
345 | unsigned long l_checksum; | |
346 | /* String table index for version. */ | |
347 | unsigned long l_version; | |
348 | /* Flags. */ | |
349 | unsigned long l_flags; | |
350 | } Elf32_Lib; | |
351 | ||
352 | /* The external version of Elf32_Lib. */ | |
353 | typedef struct | |
354 | { | |
355 | unsigned char l_name[4]; | |
356 | unsigned char l_time_stamp[4]; | |
357 | unsigned char l_checksum[4]; | |
358 | unsigned char l_version[4]; | |
359 | unsigned char l_flags[4]; | |
360 | } Elf32_External_Lib; | |
361 | ||
362 | /* The l_flags field of an Elf32_Lib structure may contain the | |
363 | following flags. */ | |
364 | ||
365 | /* Require an exact match at runtime. */ | |
366 | #define LL_EXACT_MATCH 0x00000001 | |
367 | ||
368 | /* Ignore version incompatibilities at runtime. */ | |
369 | #define LL_IGNORE_INT_VER 0x00000002 | |
370 | ||
371 | /* Require matching minor version number. */ | |
372 | #define LL_REQUIRE_MINOR 0x00000004 | |
373 | ||
374 | /* ??? */ | |
375 | #define LL_EXPORTS 0x00000008 | |
376 | ||
377 | /* Delay loading of this library until really needed. */ | |
378 | #define LL_DELAY_LOAD 0x00000010 | |
379 | ||
380 | /* ??? Delta C++ stuff ??? */ | |
381 | #define LL_DELTA 0x00000020 | |
382 | ||
383 | ||
384 | /* A section of type SHT_MIPS_CONFLICT is an array of indices into the | |
385 | .dynsym section. Each element has the following type. */ | |
386 | typedef unsigned long Elf32_Conflict; | |
387 | typedef unsigned char Elf32_External_Conflict[4]; | |
388 | ||
389 | typedef unsigned long Elf64_Conflict; | |
390 | typedef unsigned char Elf64_External_Conflict[8]; | |
391 | ||
392 | /* A section of type SHT_MIPS_GPTAB contains information about how | |
393 | much GP space would be required for different -G arguments. This | |
394 | information is only used so that the linker can provide informative | |
395 | suggestions as to the best -G value to use. The sh_info field is | |
396 | the index of the section for which this information applies. The | |
397 | contents of the section are an array of the following union. The | |
398 | first element uses the gt_header field. The remaining elements use | |
399 | the gt_entry field. */ | |
400 | typedef union | |
401 | { | |
402 | struct | |
403 | { | |
404 | /* -G value actually used for this object file. */ | |
405 | unsigned long gt_current_g_value; | |
406 | /* Unused. */ | |
407 | unsigned long gt_unused; | |
408 | } gt_header; | |
409 | struct | |
410 | { | |
411 | /* If this -G argument has been used... */ | |
412 | unsigned long gt_g_value; | |
413 | /* ...this many GP section bytes would be required. */ | |
414 | unsigned long gt_bytes; | |
415 | } gt_entry; | |
416 | } Elf32_gptab; | |
417 | ||
418 | /* The external version of Elf32_gptab. */ | |
419 | ||
420 | typedef union | |
421 | { | |
422 | struct | |
423 | { | |
424 | unsigned char gt_current_g_value[4]; | |
425 | unsigned char gt_unused[4]; | |
426 | } gt_header; | |
427 | struct | |
428 | { | |
429 | unsigned char gt_g_value[4]; | |
430 | unsigned char gt_bytes[4]; | |
431 | } gt_entry; | |
432 | } Elf32_External_gptab; | |
433 | ||
434 | /* A section of type SHT_MIPS_REGINFO contains the following | |
435 | structure. */ | |
436 | typedef struct | |
437 | { | |
438 | /* Mask of general purpose registers used. */ | |
439 | unsigned long ri_gprmask; | |
440 | /* Mask of co-processor registers used. */ | |
441 | unsigned long ri_cprmask[4]; | |
442 | /* GP register value for this object file. */ | |
443 | long ri_gp_value; | |
444 | } Elf32_RegInfo; | |
445 | ||
446 | /* The external version of the Elf_RegInfo structure. */ | |
447 | typedef struct | |
448 | { | |
449 | unsigned char ri_gprmask[4]; | |
450 | unsigned char ri_cprmask[4][4]; | |
451 | unsigned char ri_gp_value[4]; | |
452 | } Elf32_External_RegInfo; | |
453 | ||
454 | /* MIPS ELF .reginfo swapping routines. */ | |
455 | extern void bfd_mips_elf32_swap_reginfo_in | |
456 | PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *)); | |
457 | extern void bfd_mips_elf32_swap_reginfo_out | |
458 | PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *)); | |
459 | \f | |
460 | /* Processor specific section flags. */ | |
461 | ||
462 | /* This section must be in the global data area. */ | |
463 | #define SHF_MIPS_GPREL 0x10000000 | |
464 | ||
465 | /* This section should be merged. */ | |
466 | #define SHF_MIPS_MERGE 0x20000000 | |
467 | ||
ae990a1a AM |
468 | /* This section contains address data of size implied by section |
469 | element size. */ | |
470 | #define SHF_MIPS_ADDR 0x40000000 | |
252b5132 | 471 | |
ae990a1a AM |
472 | /* This section contains string data. */ |
473 | #define SHF_MIPS_STRING 0x80000000 | |
252b5132 RH |
474 | |
475 | /* This section may not be stripped. */ | |
476 | #define SHF_MIPS_NOSTRIP 0x08000000 | |
477 | ||
478 | /* This section is local to threads. */ | |
479 | #define SHF_MIPS_LOCAL 0x04000000 | |
480 | ||
481 | /* Linker should generate implicit weak names for this section. */ | |
482 | #define SHF_MIPS_NAMES 0x02000000 | |
ae990a1a AM |
483 | |
484 | /* Section contais text/data which may be replicated in other sections. | |
485 | Linker should retain only one copy. */ | |
486 | #define SHF_MIPS_NODUPES 0x01000000 | |
252b5132 RH |
487 | \f |
488 | /* Processor specific program header types. */ | |
489 | ||
490 | /* Register usage information. Identifies one .reginfo section. */ | |
491 | #define PT_MIPS_REGINFO 0x70000000 | |
492 | ||
493 | /* Runtime procedure table. */ | |
494 | #define PT_MIPS_RTPROC 0x70000001 | |
495 | ||
ae990a1a | 496 | /* .MIPS.options section. */ |
252b5132 RH |
497 | #define PT_MIPS_OPTIONS 0x70000002 |
498 | \f | |
499 | /* Processor specific dynamic array tags. */ | |
500 | ||
501 | /* 32 bit version number for runtime linker interface. */ | |
502 | #define DT_MIPS_RLD_VERSION 0x70000001 | |
503 | ||
504 | /* Time stamp. */ | |
505 | #define DT_MIPS_TIME_STAMP 0x70000002 | |
506 | ||
507 | /* Checksum of external strings and common sizes. */ | |
508 | #define DT_MIPS_ICHECKSUM 0x70000003 | |
509 | ||
510 | /* Index of version string in string table. */ | |
511 | #define DT_MIPS_IVERSION 0x70000004 | |
512 | ||
513 | /* 32 bits of flags. */ | |
514 | #define DT_MIPS_FLAGS 0x70000005 | |
515 | ||
516 | /* Base address of the segment. */ | |
517 | #define DT_MIPS_BASE_ADDRESS 0x70000006 | |
518 | ||
519 | /* ??? */ | |
520 | #define DT_MIPS_MSYM 0x70000007 | |
521 | ||
522 | /* Address of .conflict section. */ | |
523 | #define DT_MIPS_CONFLICT 0x70000008 | |
524 | ||
525 | /* Address of .liblist section. */ | |
526 | #define DT_MIPS_LIBLIST 0x70000009 | |
527 | ||
528 | /* Number of local global offset table entries. */ | |
529 | #define DT_MIPS_LOCAL_GOTNO 0x7000000a | |
530 | ||
531 | /* Number of entries in the .conflict section. */ | |
532 | #define DT_MIPS_CONFLICTNO 0x7000000b | |
533 | ||
534 | /* Number of entries in the .liblist section. */ | |
535 | #define DT_MIPS_LIBLISTNO 0x70000010 | |
536 | ||
537 | /* Number of entries in the .dynsym section. */ | |
538 | #define DT_MIPS_SYMTABNO 0x70000011 | |
539 | ||
540 | /* Index of first external dynamic symbol not referenced locally. */ | |
541 | #define DT_MIPS_UNREFEXTNO 0x70000012 | |
542 | ||
543 | /* Index of first dynamic symbol in global offset table. */ | |
544 | #define DT_MIPS_GOTSYM 0x70000013 | |
545 | ||
546 | /* Number of page table entries in global offset table. */ | |
547 | #define DT_MIPS_HIPAGENO 0x70000014 | |
548 | ||
549 | /* Address of run time loader map, used for debugging. */ | |
550 | #define DT_MIPS_RLD_MAP 0x70000016 | |
551 | ||
552 | /* Delta C++ class definition. */ | |
553 | #define DT_MIPS_DELTA_CLASS 0x70000017 | |
554 | ||
555 | /* Number of entries in DT_MIPS_DELTA_CLASS. */ | |
556 | #define DT_MIPS_DELTA_CLASS_NO 0x70000018 | |
557 | ||
558 | /* Delta C++ class instances. */ | |
559 | #define DT_MIPS_DELTA_INSTANCE 0x70000019 | |
560 | ||
561 | /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ | |
562 | #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a | |
563 | ||
564 | /* Delta relocations. */ | |
565 | #define DT_MIPS_DELTA_RELOC 0x7000001b | |
566 | ||
567 | /* Number of entries in DT_MIPS_DELTA_RELOC. */ | |
568 | #define DT_MIPS_DELTA_RELOC_NO 0x7000001c | |
569 | ||
570 | /* Delta symbols that Delta relocations refer to. */ | |
571 | #define DT_MIPS_DELTA_SYM 0x7000001d | |
572 | ||
573 | /* Number of entries in DT_MIPS_DELTA_SYM. */ | |
574 | #define DT_MIPS_DELTA_SYM_NO 0x7000001e | |
575 | ||
576 | /* Delta symbols that hold class declarations. */ | |
577 | #define DT_MIPS_DELTA_CLASSSYM 0x70000020 | |
578 | ||
579 | /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ | |
580 | #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 | |
581 | ||
582 | /* Flags indicating information about C++ flavor. */ | |
583 | #define DT_MIPS_CXX_FLAGS 0x70000022 | |
584 | ||
585 | /* Pixie information (???). */ | |
586 | #define DT_MIPS_PIXIE_INIT 0x70000023 | |
587 | ||
ae990a1a | 588 | /* Address of .MIPS.symlib */ |
252b5132 RH |
589 | #define DT_MIPS_SYMBOL_LIB 0x70000024 |
590 | ||
ae990a1a | 591 | /* The GOT index of the first PTE for a segment */ |
252b5132 RH |
592 | #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 |
593 | ||
ae990a1a | 594 | /* The GOT index of the first PTE for a local symbol */ |
252b5132 RH |
595 | #define DT_MIPS_LOCAL_GOTIDX 0x70000026 |
596 | ||
ae990a1a | 597 | /* The GOT index of the first PTE for a hidden symbol */ |
252b5132 RH |
598 | #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 |
599 | ||
ae990a1a | 600 | /* The GOT index of the first PTE for a protected symbol */ |
252b5132 RH |
601 | #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 |
602 | ||
603 | /* Address of `.MIPS.options'. */ | |
604 | #define DT_MIPS_OPTIONS 0x70000029 | |
605 | ||
606 | /* Address of `.interface'. */ | |
607 | #define DT_MIPS_INTERFACE 0x7000002a | |
608 | ||
609 | /* ??? */ | |
610 | #define DT_MIPS_DYNSTR_ALIGN 0x7000002b | |
611 | ||
612 | /* Size of the .interface section. */ | |
613 | #define DT_MIPS_INTERFACE_SIZE 0x7000002c | |
614 | ||
615 | /* Size of rld_text_resolve function stored in the GOT. */ | |
616 | #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d | |
617 | ||
618 | /* Default suffix of DSO to be added by rld on dlopen() calls. */ | |
619 | #define DT_MIPS_PERF_SUFFIX 0x7000002e | |
620 | ||
621 | /* Size of compact relocation section (O32). */ | |
622 | #define DT_MIPS_COMPACT_SIZE 0x7000002f | |
623 | ||
624 | /* GP value for auxiliary GOTs. */ | |
625 | #define DT_MIPS_GP_VALUE 0x70000030 | |
626 | ||
627 | /* Address of auxiliary .dynamic. */ | |
628 | #define DT_MIPS_AUX_DYNAMIC 0x70000031 | |
629 | \f | |
630 | /* Flags which may appear in a DT_MIPS_FLAGS entry. */ | |
631 | ||
632 | /* No flags. */ | |
633 | #define RHF_NONE 0x00000000 | |
634 | ||
635 | /* Uses shortcut pointers. */ | |
636 | #define RHF_QUICKSTART 0x00000001 | |
637 | ||
638 | /* Hash size is not a power of two. */ | |
639 | #define RHF_NOTPOT 0x00000002 | |
640 | ||
641 | /* Ignore LD_LIBRARY_PATH. */ | |
ae990a1a | 642 | #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 |
252b5132 | 643 | |
ae990a1a AM |
644 | /* DSO address may not be relocated. */ |
645 | #define RHF_NO_MOVE 0x00000008 | |
646 | ||
647 | /* SGI specific features. */ | |
648 | #define RHF_SGI_ONLY 0x00000010 | |
649 | ||
650 | /* Guarantee that .init will finish executing before any non-init | |
651 | code in DSO is called. */ | |
252b5132 | 652 | #define RHF_GUARANTEE_INIT 0x00000020 |
ae990a1a AM |
653 | |
654 | /* Contains Delta C++ code. */ | |
252b5132 | 655 | #define RHF_DELTA_C_PLUS_PLUS 0x00000040 |
ae990a1a AM |
656 | |
657 | /* Guarantee that .init will start executing before any non-init | |
658 | code in DSO is called. */ | |
252b5132 | 659 | #define RHF_GUARANTEE_START_INIT 0x00000080 |
ae990a1a AM |
660 | |
661 | /* Generated by pixie. */ | |
252b5132 | 662 | #define RHF_PIXIE 0x00000100 |
ae990a1a AM |
663 | |
664 | /* Delay-load DSO by default. */ | |
252b5132 | 665 | #define RHF_DEFAULT_DELAY_LOAD 0x00000200 |
ae990a1a AM |
666 | |
667 | /* Object may be requickstarted */ | |
252b5132 | 668 | #define RHF_REQUICKSTART 0x00000400 |
ae990a1a AM |
669 | |
670 | /* Object has been requickstarted */ | |
252b5132 | 671 | #define RHF_REQUICKSTARTED 0x00000800 |
ae990a1a AM |
672 | |
673 | /* Generated by cord. */ | |
252b5132 | 674 | #define RHF_CORD 0x00001000 |
ae990a1a AM |
675 | |
676 | /* Object contains no unresolved undef symbols. */ | |
252b5132 | 677 | #define RHF_NO_UNRES_UNDEF 0x00002000 |
ae990a1a AM |
678 | |
679 | /* Symbol table is in a safe order. */ | |
252b5132 RH |
680 | #define RHF_RLD_ORDER_SAFE 0x00004000 |
681 | \f | |
682 | /* Special values for the st_other field in the symbol table. These | |
683 | are used in an Irix 5 dynamic symbol table. */ | |
684 | ||
4fbca453 NC |
685 | #define STO_DEFAULT STV_DEFAULT |
686 | #define STO_INTERNAL STV_INTERNAL | |
687 | #define STO_HIDDEN STV_HIDDEN | |
688 | #define STO_PROTECTED STV_PROTECTED | |
252b5132 RH |
689 | |
690 | /* This value is used for a mips16 .text symbol. */ | |
691 | #define STO_MIPS16 0xf0 | |
692 | \f | |
693 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each | |
694 | relocation entry specifies up to three actual relocations, all at | |
695 | the same address. The first relocation which required a symbol | |
696 | uses the symbol in the r_sym field. The second relocation which | |
697 | requires a symbol uses the symbol in the r_ssym field. If all | |
698 | three relocations require a symbol, the third one uses a zero | |
699 | value. */ | |
700 | ||
701 | /* An entry in a 64 bit SHT_REL section. */ | |
702 | ||
703 | typedef struct | |
704 | { | |
705 | /* Address of relocation. */ | |
706 | unsigned char r_offset[8]; | |
707 | /* Symbol index. */ | |
708 | unsigned char r_sym[4]; | |
709 | /* Special symbol. */ | |
710 | unsigned char r_ssym[1]; | |
711 | /* Third relocation. */ | |
712 | unsigned char r_type3[1]; | |
713 | /* Second relocation. */ | |
714 | unsigned char r_type2[1]; | |
715 | /* First relocation. */ | |
716 | unsigned char r_type[1]; | |
717 | } Elf64_Mips_External_Rel; | |
718 | ||
719 | typedef struct | |
720 | { | |
721 | /* Address of relocation. */ | |
722 | bfd_vma r_offset; | |
723 | /* Symbol index. */ | |
724 | unsigned long r_sym; | |
725 | /* Special symbol. */ | |
726 | unsigned char r_ssym; | |
727 | /* Third relocation. */ | |
728 | unsigned char r_type3; | |
729 | /* Second relocation. */ | |
730 | unsigned char r_type2; | |
731 | /* First relocation. */ | |
732 | unsigned char r_type; | |
733 | } Elf64_Mips_Internal_Rel; | |
734 | ||
735 | /* An entry in a 64 bit SHT_RELA section. */ | |
736 | ||
737 | typedef struct | |
738 | { | |
739 | /* Address of relocation. */ | |
740 | unsigned char r_offset[8]; | |
741 | /* Symbol index. */ | |
742 | unsigned char r_sym[4]; | |
743 | /* Special symbol. */ | |
744 | unsigned char r_ssym[1]; | |
745 | /* Third relocation. */ | |
746 | unsigned char r_type3[1]; | |
747 | /* Second relocation. */ | |
748 | unsigned char r_type2[1]; | |
749 | /* First relocation. */ | |
750 | unsigned char r_type[1]; | |
751 | /* Addend. */ | |
752 | unsigned char r_addend[8]; | |
753 | } Elf64_Mips_External_Rela; | |
754 | ||
755 | typedef struct | |
756 | { | |
757 | /* Address of relocation. */ | |
758 | bfd_vma r_offset; | |
759 | /* Symbol index. */ | |
760 | unsigned long r_sym; | |
761 | /* Special symbol. */ | |
762 | unsigned char r_ssym; | |
763 | /* Third relocation. */ | |
764 | unsigned char r_type3; | |
765 | /* Second relocation. */ | |
766 | unsigned char r_type2; | |
767 | /* First relocation. */ | |
768 | unsigned char r_type; | |
769 | /* Addend. */ | |
770 | bfd_signed_vma r_addend; | |
771 | } Elf64_Mips_Internal_Rela; | |
772 | ||
ae990a1a AM |
773 | /* MIPS ELF 64 relocation info access macros. */ |
774 | #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) | |
775 | #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) | |
776 | #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) | |
777 | #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) | |
778 | ||
252b5132 RH |
779 | /* Values found in the r_ssym field of a relocation entry. */ |
780 | ||
781 | /* No relocation. */ | |
782 | #define RSS_UNDEF 0 | |
783 | ||
784 | /* Value of GP. */ | |
785 | #define RSS_GP 1 | |
786 | ||
787 | /* Value of GP in object being relocated. */ | |
788 | #define RSS_GP0 2 | |
789 | ||
790 | /* Address of location being relocated. */ | |
791 | #define RSS_LOC 3 | |
792 | \f | |
793 | /* A SHT_MIPS_OPTIONS section contains a series of options, each of | |
794 | which starts with this header. */ | |
795 | ||
796 | typedef struct | |
797 | { | |
798 | /* Type of option. */ | |
799 | unsigned char kind[1]; | |
800 | /* Size of option descriptor, including header. */ | |
801 | unsigned char size[1]; | |
802 | /* Section index of affected section, or 0 for global option. */ | |
803 | unsigned char section[2]; | |
804 | /* Information specific to this kind of option. */ | |
805 | unsigned char info[4]; | |
806 | } Elf_External_Options; | |
807 | ||
808 | typedef struct | |
809 | { | |
810 | /* Type of option. */ | |
811 | unsigned char kind; | |
812 | /* Size of option descriptor, including header. */ | |
813 | unsigned char size; | |
814 | /* Section index of affected section, or 0 for global option. */ | |
815 | unsigned short section; | |
816 | /* Information specific to this kind of option. */ | |
817 | unsigned long info; | |
818 | } Elf_Internal_Options; | |
819 | ||
820 | /* MIPS ELF option header swapping routines. */ | |
821 | extern void bfd_mips_elf_swap_options_in | |
822 | PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *)); | |
823 | extern void bfd_mips_elf_swap_options_out | |
824 | PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *)); | |
825 | ||
826 | /* Values which may appear in the kind field of an Elf_Options | |
827 | structure. */ | |
828 | ||
829 | /* Undefined. */ | |
830 | #define ODK_NULL 0 | |
831 | ||
832 | /* Register usage and GP value. */ | |
833 | #define ODK_REGINFO 1 | |
834 | ||
835 | /* Exception processing information. */ | |
836 | #define ODK_EXCEPTIONS 2 | |
837 | ||
838 | /* Section padding information. */ | |
839 | #define ODK_PAD 3 | |
840 | ||
841 | /* Hardware workarounds performed. */ | |
842 | #define ODK_HWPATCH 4 | |
843 | ||
844 | /* Fill value used by the linker. */ | |
845 | #define ODK_FILL 5 | |
846 | ||
847 | /* Reserved space for desktop tools. */ | |
848 | #define ODK_TAGS 6 | |
849 | ||
850 | /* Hardware workarounds, AND bits when merging. */ | |
851 | #define ODK_HWAND 7 | |
852 | ||
853 | /* Hardware workarounds, OR bits when merging. */ | |
854 | #define ODK_HWOR 8 | |
855 | ||
856 | /* GP group to use for text/data sections. */ | |
857 | #define ODK_GP_GROUP 9 | |
858 | ||
859 | /* ID information. */ | |
860 | #define ODK_IDENT 10 | |
861 | ||
862 | /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo | |
863 | structure. In the 64 bit ABI, it is the following structure. The | |
864 | info field of the options header is not used. */ | |
865 | ||
866 | typedef struct | |
867 | { | |
868 | /* Mask of general purpose registers used. */ | |
869 | unsigned char ri_gprmask[4]; | |
870 | /* Padding. */ | |
871 | unsigned char ri_pad[4]; | |
872 | /* Mask of co-processor registers used. */ | |
873 | unsigned char ri_cprmask[4][4]; | |
874 | /* GP register value for this object file. */ | |
875 | unsigned char ri_gp_value[8]; | |
876 | } Elf64_External_RegInfo; | |
877 | ||
878 | typedef struct | |
879 | { | |
880 | /* Mask of general purpose registers used. */ | |
881 | unsigned long ri_gprmask; | |
882 | /* Padding. */ | |
883 | unsigned long ri_pad; | |
884 | /* Mask of co-processor registers used. */ | |
885 | unsigned long ri_cprmask[4]; | |
886 | /* GP register value for this object file. */ | |
887 | bfd_vma ri_gp_value; | |
888 | } Elf64_Internal_RegInfo; | |
889 | ||
030d863d MM |
890 | typedef struct |
891 | { | |
892 | /* The hash value computed from the name of the corresponding | |
893 | dynamic symbol. */ | |
894 | unsigned char ms_hash_value[4]; | |
895 | /* Contains both the dynamic relocation index and the symbol flags | |
896 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used | |
897 | to access the individual values. The dynamic relocation index | |
898 | identifies the first entry in the .rel.dyn section that | |
899 | references the dynamic symbol corresponding to this msym entry. | |
900 | If the index is 0, no dynamic relocations are associated with the | |
901 | symbol. The symbol flags field is reserved for future use. */ | |
902 | unsigned char ms_info[4]; | |
903 | } Elf32_External_Msym; | |
904 | ||
905 | typedef struct | |
906 | { | |
907 | /* The hash value computed from the name of the corresponding | |
908 | dynamic symbol. */ | |
909 | unsigned long ms_hash_value; | |
910 | /* Contains both the dynamic relocation index and the symbol flags | |
911 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used | |
912 | to access the individual values. The dynamic relocation index | |
913 | identifies the first entry in the .rel.dyn section that | |
914 | references the dynamic symbol corresponding to this msym entry. | |
915 | If the index is 0, no dynamic relocations are associated with the | |
916 | symbol. The symbol flags field is reserved for future use. */ | |
917 | unsigned long ms_info; | |
918 | } Elf32_Internal_Msym; | |
919 | ||
920 | #define ELF32_MS_REL_INDEX(i) ((i) >> 8) | |
921 | #define ELF32_MS_FLAGS(i) (i) & 0xff) | |
922 | #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) | |
923 | ||
252b5132 RH |
924 | /* MIPS ELF reginfo swapping routines. */ |
925 | extern void bfd_mips_elf64_swap_reginfo_in | |
926 | PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *)); | |
927 | extern void bfd_mips_elf64_swap_reginfo_out | |
928 | PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *)); | |
929 | ||
930 | /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ | |
931 | #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ | |
932 | #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ | |
933 | #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ | |
934 | #define OEX_SMM 0x20000 /* Force sequential memory mode. */ | |
ae990a1a AM |
935 | #define OEX_FPDBUG 0x40000 /* Force precise floating-point |
936 | exceptions (debug mode). */ | |
252b5132 RH |
937 | #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ |
938 | ||
939 | /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ | |
940 | #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ | |
941 | #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ | |
942 | #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ | |
943 | #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ | |
944 | #define OEX_FPU_INEX 0x01 /* Inexact exception. */ | |
945 | ||
946 | /* Masks for the info word of an ODK_PAD descriptor. */ | |
947 | #define OPAD_PREFIX 0x01 | |
948 | #define OPAD_POSTFIX 0x02 | |
949 | #define OPAD_SYMBOL 0x04 | |
950 | ||
951 | /* Masks for the info word of an ODK_HWPATCH descriptor. */ | |
ae990a1a AM |
952 | #define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ |
953 | #define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ | |
954 | #define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ | |
955 | #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug | |
956 | (clean == 1). */ | |
957 | #define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned | |
958 | load patch. */ | |
252b5132 RH |
959 | |
960 | /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ | |
961 | #define OGP_GROUP 0x0000ffff /* GP group number. */ | |
962 | #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ | |
963 | ||
964 | /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ | |
965 | #define OHWA0_R4KEOP_CHECKED 0x00000001 | |
966 | #define OHWA0_R4KEOP_CLEAN 0x00000002 | |
967 | \f | |
968 | ||
969 | #endif /* _ELF_MIPS_H */ |