Commit | Line | Data |
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252b5132 | 1 | /* MIPS ELF support for BFD. |
638632bd AM |
2 | Copyright (C) 1993, 94, 95, 96, 97, 98, 99, 2000 |
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) | |
37 | RELOC_NUMBER (R_MIPS_32, 2) | |
38 | RELOC_NUMBER (R_MIPS_REL32, 3) | |
39 | RELOC_NUMBER (R_MIPS_26, 4) | |
40 | RELOC_NUMBER (R_MIPS_HI16, 5) | |
41 | RELOC_NUMBER (R_MIPS_LO16, 6) | |
42 | RELOC_NUMBER (R_MIPS_GPREL16, 7) | |
43 | RELOC_NUMBER (R_MIPS_LITERAL, 8) | |
44 | RELOC_NUMBER (R_MIPS_GOT16, 9) | |
45 | RELOC_NUMBER (R_MIPS_PC16, 10) | |
46 | RELOC_NUMBER (R_MIPS_CALL16, 11) | |
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 | ||
102 | /* Code in file uses new ABI (-n32 on Irix 6). */ | |
103 | #define EF_MIPS_ABI2 0x00000020 | |
104 | ||
105 | /* Indicates code compiled for a 64-bit machine in 32-bit mode. | |
106 | (regs are 32-bits wide.) */ | |
107 | #define EF_MIPS_32BITMODE 0x00000100 | |
108 | ||
109 | /* Four bit MIPS architecture field. */ | |
110 | #define EF_MIPS_ARCH 0xf0000000 | |
111 | ||
112 | /* -mips1 code. */ | |
113 | #define E_MIPS_ARCH_1 0x00000000 | |
114 | ||
115 | /* -mips2 code. */ | |
116 | #define E_MIPS_ARCH_2 0x10000000 | |
117 | ||
118 | /* -mips3 code. */ | |
119 | #define E_MIPS_ARCH_3 0x20000000 | |
120 | ||
121 | /* -mips4 code. */ | |
122 | #define E_MIPS_ARCH_4 0x30000000 | |
123 | ||
84ea6cf2 NC |
124 | /* -mips5 code. */ |
125 | #define E_MIPS_ARCH_5 0x40000000 | |
126 | ||
e7af610e NC |
127 | /* -mips32 code. */ |
128 | #define E_MIPS_ARCH_32 0x50000000 | |
129 | ||
84ea6cf2 NC |
130 | /* -mips64 code. */ |
131 | #define E_MIPS_ARCH_64 0x60000000 | |
132 | ||
252b5132 RH |
133 | /* The ABI of the file. Also see EF_MIPS_ABI2 above. */ |
134 | #define EF_MIPS_ABI 0x0000F000 | |
135 | ||
136 | /* The original o32 abi. */ | |
137 | #define E_MIPS_ABI_O32 0x00001000 | |
138 | ||
139 | /* O32 extended to work on 64 bit architectures */ | |
140 | #define E_MIPS_ABI_O64 0x00002000 | |
141 | ||
142 | /* EABI in 32 bit mode */ | |
143 | #define E_MIPS_ABI_EABI32 0x00003000 | |
144 | ||
145 | /* EABI in 64 bit mode */ | |
146 | #define E_MIPS_ABI_EABI64 0x00004000 | |
147 | ||
148 | ||
149 | /* Machine variant if we know it. This field was invented at Cygnus, | |
150 | but it is hoped that other vendors will adopt it. If some standard | |
151 | is developed, this code should be changed to follow it. */ | |
152 | ||
153 | #define EF_MIPS_MACH 0x00FF0000 | |
154 | ||
155 | /* Cygnus is choosing values between 80 and 9F; | |
156 | 00 - 7F should be left for a future standard; | |
157 | the rest are open. */ | |
158 | ||
159 | #define E_MIPS_MACH_3900 0x00810000 | |
160 | ||
161 | #define E_MIPS_MACH_4010 0x00820000 | |
162 | #define E_MIPS_MACH_4100 0x00830000 | |
163 | #define E_MIPS_MACH_4650 0x00850000 | |
164 | #define E_MIPS_MACH_4111 0x00880000 | |
e7af610e | 165 | #define E_MIPS_MACH_MIPS32_4K 0x00890000 |
252b5132 RH |
166 | \f |
167 | /* Processor specific section indices. These sections do not actually | |
168 | exist. Symbols with a st_shndx field corresponding to one of these | |
169 | values have a special meaning. */ | |
170 | ||
171 | /* Defined and allocated common symbol. Value is virtual address. If | |
172 | relocated, alignment must be preserved. */ | |
173 | #define SHN_MIPS_ACOMMON 0xff00 | |
174 | ||
175 | /* Defined and allocated text symbol. Value is virtual address. | |
176 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
177 | #define SHN_MIPS_TEXT 0xff01 | |
178 | ||
179 | /* Defined and allocated data symbol. Value is virtual address. | |
180 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
181 | #define SHN_MIPS_DATA 0xff02 | |
182 | ||
183 | /* Small common symbol. */ | |
184 | #define SHN_MIPS_SCOMMON 0xff03 | |
185 | ||
186 | /* Small undefined symbol. */ | |
187 | #define SHN_MIPS_SUNDEFINED 0xff04 | |
188 | \f | |
189 | /* Processor specific section types. */ | |
190 | ||
191 | /* Section contains the set of dynamic shared objects used when | |
192 | statically linking. */ | |
193 | #define SHT_MIPS_LIBLIST 0x70000000 | |
194 | ||
195 | /* I'm not sure what this is, but it's used on Irix 5. */ | |
196 | #define SHT_MIPS_MSYM 0x70000001 | |
197 | ||
198 | /* Section contains list of symbols whose definitions conflict with | |
199 | symbols defined in shared objects. */ | |
200 | #define SHT_MIPS_CONFLICT 0x70000002 | |
201 | ||
202 | /* Section contains the global pointer table. */ | |
203 | #define SHT_MIPS_GPTAB 0x70000003 | |
204 | ||
205 | /* Section contains microcode information. The exact format is | |
206 | unspecified. */ | |
207 | #define SHT_MIPS_UCODE 0x70000004 | |
208 | ||
209 | /* Section contains some sort of debugging information. The exact | |
210 | format is unspecified. It's probably ECOFF symbols. */ | |
211 | #define SHT_MIPS_DEBUG 0x70000005 | |
212 | ||
213 | /* Section contains register usage information. */ | |
214 | #define SHT_MIPS_REGINFO 0x70000006 | |
215 | ||
216 | /* ??? */ | |
217 | #define SHT_MIPS_PACKAGE 0x70000007 | |
218 | ||
219 | /* ??? */ | |
220 | #define SHT_MIPS_PACKSYM 0x70000008 | |
221 | ||
222 | /* ??? */ | |
223 | #define SHT_MIPS_RELD 0x70000009 | |
224 | ||
225 | /* Section contains interface information. */ | |
226 | #define SHT_MIPS_IFACE 0x7000000b | |
227 | ||
228 | /* Section contains description of contents of another section. */ | |
229 | #define SHT_MIPS_CONTENT 0x7000000c | |
230 | ||
231 | /* Section contains miscellaneous options. */ | |
232 | #define SHT_MIPS_OPTIONS 0x7000000d | |
233 | ||
234 | /* ??? */ | |
235 | #define SHT_MIPS_SHDR 0x70000010 | |
236 | ||
237 | /* ??? */ | |
238 | #define SHT_MIPS_FDESC 0x70000011 | |
239 | ||
240 | /* ??? */ | |
241 | #define SHT_MIPS_EXTSYM 0x70000012 | |
242 | ||
243 | /* ??? */ | |
244 | #define SHT_MIPS_DENSE 0x70000013 | |
245 | ||
246 | /* ??? */ | |
247 | #define SHT_MIPS_PDESC 0x70000014 | |
248 | ||
249 | /* ??? */ | |
250 | #define SHT_MIPS_LOCSYM 0x70000015 | |
251 | ||
252 | /* ??? */ | |
253 | #define SHT_MIPS_AUXSYM 0x70000016 | |
254 | ||
255 | /* ??? */ | |
256 | #define SHT_MIPS_OPTSYM 0x70000017 | |
257 | ||
258 | /* ??? */ | |
259 | #define SHT_MIPS_LOCSTR 0x70000018 | |
260 | ||
261 | /* ??? */ | |
262 | #define SHT_MIPS_LINE 0x70000019 | |
263 | ||
264 | /* ??? */ | |
265 | #define SHT_MIPS_RFDESC 0x7000001a | |
266 | ||
267 | /* ??? */ | |
268 | #define SHT_MIPS_DELTASYM 0x7000001b | |
269 | ||
270 | /* ??? */ | |
271 | #define SHT_MIPS_DELTAINST 0x7000001c | |
272 | ||
273 | /* ??? */ | |
274 | #define SHT_MIPS_DELTACLASS 0x7000001d | |
275 | ||
276 | /* DWARF debugging section. */ | |
277 | #define SHT_MIPS_DWARF 0x7000001e | |
278 | ||
279 | /* ??? */ | |
280 | #define SHT_MIPS_DELTADECL 0x7000001f | |
281 | ||
282 | /* List of libraries the binary depends on. Includes a time stamp, version | |
283 | number. */ | |
284 | #define SHT_MIPS_SYMBOL_LIB 0x70000020 | |
285 | ||
286 | /* Events section. */ | |
287 | #define SHT_MIPS_EVENTS 0x70000021 | |
288 | ||
289 | /* ??? */ | |
290 | #define SHT_MIPS_TRANSLATE 0x70000022 | |
291 | ||
292 | /* ??? */ | |
293 | #define SHT_MIPS_PIXIE 0x70000023 | |
294 | ||
295 | /* ??? */ | |
296 | #define SHT_MIPS_XLATE 0x70000024 | |
297 | ||
298 | /* ??? */ | |
299 | #define SHT_MIPS_XLATE_DEBUG 0x70000025 | |
300 | ||
301 | /* ??? */ | |
302 | #define SHT_MIPS_WHIRL 0x70000026 | |
303 | ||
304 | /* ??? */ | |
305 | #define SHT_MIPS_EH_REGION 0x70000027 | |
306 | ||
307 | /* ??? */ | |
308 | #define SHT_MIPS_XLATE_OLD 0x70000028 | |
309 | ||
310 | /* ??? */ | |
311 | #define SHT_MIPS_PDR_EXCEPTION 0x70000029 | |
312 | ||
313 | ||
314 | /* A section of type SHT_MIPS_LIBLIST contains an array of the | |
315 | following structure. The sh_link field is the section index of the | |
316 | string table. The sh_info field is the number of entries in the | |
317 | section. */ | |
318 | typedef struct | |
319 | { | |
320 | /* String table index for name of shared object. */ | |
321 | unsigned long l_name; | |
322 | /* Time stamp. */ | |
323 | unsigned long l_time_stamp; | |
324 | /* Checksum of symbol names and common sizes. */ | |
325 | unsigned long l_checksum; | |
326 | /* String table index for version. */ | |
327 | unsigned long l_version; | |
328 | /* Flags. */ | |
329 | unsigned long l_flags; | |
330 | } Elf32_Lib; | |
331 | ||
332 | /* The external version of Elf32_Lib. */ | |
333 | typedef struct | |
334 | { | |
335 | unsigned char l_name[4]; | |
336 | unsigned char l_time_stamp[4]; | |
337 | unsigned char l_checksum[4]; | |
338 | unsigned char l_version[4]; | |
339 | unsigned char l_flags[4]; | |
340 | } Elf32_External_Lib; | |
341 | ||
342 | /* The l_flags field of an Elf32_Lib structure may contain the | |
343 | following flags. */ | |
344 | ||
345 | /* Require an exact match at runtime. */ | |
346 | #define LL_EXACT_MATCH 0x00000001 | |
347 | ||
348 | /* Ignore version incompatibilities at runtime. */ | |
349 | #define LL_IGNORE_INT_VER 0x00000002 | |
350 | ||
351 | /* Require matching minor version number. */ | |
352 | #define LL_REQUIRE_MINOR 0x00000004 | |
353 | ||
354 | /* ??? */ | |
355 | #define LL_EXPORTS 0x00000008 | |
356 | ||
357 | /* Delay loading of this library until really needed. */ | |
358 | #define LL_DELAY_LOAD 0x00000010 | |
359 | ||
360 | /* ??? Delta C++ stuff ??? */ | |
361 | #define LL_DELTA 0x00000020 | |
362 | ||
363 | ||
364 | /* A section of type SHT_MIPS_CONFLICT is an array of indices into the | |
365 | .dynsym section. Each element has the following type. */ | |
366 | typedef unsigned long Elf32_Conflict; | |
367 | typedef unsigned char Elf32_External_Conflict[4]; | |
368 | ||
369 | typedef unsigned long Elf64_Conflict; | |
370 | typedef unsigned char Elf64_External_Conflict[8]; | |
371 | ||
372 | /* A section of type SHT_MIPS_GPTAB contains information about how | |
373 | much GP space would be required for different -G arguments. This | |
374 | information is only used so that the linker can provide informative | |
375 | suggestions as to the best -G value to use. The sh_info field is | |
376 | the index of the section for which this information applies. The | |
377 | contents of the section are an array of the following union. The | |
378 | first element uses the gt_header field. The remaining elements use | |
379 | the gt_entry field. */ | |
380 | typedef union | |
381 | { | |
382 | struct | |
383 | { | |
384 | /* -G value actually used for this object file. */ | |
385 | unsigned long gt_current_g_value; | |
386 | /* Unused. */ | |
387 | unsigned long gt_unused; | |
388 | } gt_header; | |
389 | struct | |
390 | { | |
391 | /* If this -G argument has been used... */ | |
392 | unsigned long gt_g_value; | |
393 | /* ...this many GP section bytes would be required. */ | |
394 | unsigned long gt_bytes; | |
395 | } gt_entry; | |
396 | } Elf32_gptab; | |
397 | ||
398 | /* The external version of Elf32_gptab. */ | |
399 | ||
400 | typedef union | |
401 | { | |
402 | struct | |
403 | { | |
404 | unsigned char gt_current_g_value[4]; | |
405 | unsigned char gt_unused[4]; | |
406 | } gt_header; | |
407 | struct | |
408 | { | |
409 | unsigned char gt_g_value[4]; | |
410 | unsigned char gt_bytes[4]; | |
411 | } gt_entry; | |
412 | } Elf32_External_gptab; | |
413 | ||
414 | /* A section of type SHT_MIPS_REGINFO contains the following | |
415 | structure. */ | |
416 | typedef struct | |
417 | { | |
418 | /* Mask of general purpose registers used. */ | |
419 | unsigned long ri_gprmask; | |
420 | /* Mask of co-processor registers used. */ | |
421 | unsigned long ri_cprmask[4]; | |
422 | /* GP register value for this object file. */ | |
423 | long ri_gp_value; | |
424 | } Elf32_RegInfo; | |
425 | ||
426 | /* The external version of the Elf_RegInfo structure. */ | |
427 | typedef struct | |
428 | { | |
429 | unsigned char ri_gprmask[4]; | |
430 | unsigned char ri_cprmask[4][4]; | |
431 | unsigned char ri_gp_value[4]; | |
432 | } Elf32_External_RegInfo; | |
433 | ||
434 | /* MIPS ELF .reginfo swapping routines. */ | |
435 | extern void bfd_mips_elf32_swap_reginfo_in | |
436 | PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *)); | |
437 | extern void bfd_mips_elf32_swap_reginfo_out | |
438 | PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *)); | |
439 | \f | |
440 | /* Processor specific section flags. */ | |
441 | ||
442 | /* This section must be in the global data area. */ | |
443 | #define SHF_MIPS_GPREL 0x10000000 | |
444 | ||
445 | /* This section should be merged. */ | |
446 | #define SHF_MIPS_MERGE 0x20000000 | |
447 | ||
448 | /* This section contains 32 bit addresses. */ | |
449 | #define SHF_MIPS_ADDR32 0x40000000 | |
450 | ||
451 | /* This section contains 64 bit addresses. */ | |
452 | #define SHF_MIPS_ADDR64 0x80000000 | |
453 | ||
454 | /* This section may not be stripped. */ | |
455 | #define SHF_MIPS_NOSTRIP 0x08000000 | |
456 | ||
457 | /* This section is local to threads. */ | |
458 | #define SHF_MIPS_LOCAL 0x04000000 | |
459 | ||
460 | /* Linker should generate implicit weak names for this section. */ | |
461 | #define SHF_MIPS_NAMES 0x02000000 | |
462 | \f | |
463 | /* Processor specific program header types. */ | |
464 | ||
465 | /* Register usage information. Identifies one .reginfo section. */ | |
466 | #define PT_MIPS_REGINFO 0x70000000 | |
467 | ||
468 | /* Runtime procedure table. */ | |
469 | #define PT_MIPS_RTPROC 0x70000001 | |
470 | ||
471 | /* Options (for what ???). */ | |
472 | #define PT_MIPS_OPTIONS 0x70000002 | |
473 | \f | |
474 | /* Processor specific dynamic array tags. */ | |
475 | ||
476 | /* 32 bit version number for runtime linker interface. */ | |
477 | #define DT_MIPS_RLD_VERSION 0x70000001 | |
478 | ||
479 | /* Time stamp. */ | |
480 | #define DT_MIPS_TIME_STAMP 0x70000002 | |
481 | ||
482 | /* Checksum of external strings and common sizes. */ | |
483 | #define DT_MIPS_ICHECKSUM 0x70000003 | |
484 | ||
485 | /* Index of version string in string table. */ | |
486 | #define DT_MIPS_IVERSION 0x70000004 | |
487 | ||
488 | /* 32 bits of flags. */ | |
489 | #define DT_MIPS_FLAGS 0x70000005 | |
490 | ||
491 | /* Base address of the segment. */ | |
492 | #define DT_MIPS_BASE_ADDRESS 0x70000006 | |
493 | ||
494 | /* ??? */ | |
495 | #define DT_MIPS_MSYM 0x70000007 | |
496 | ||
497 | /* Address of .conflict section. */ | |
498 | #define DT_MIPS_CONFLICT 0x70000008 | |
499 | ||
500 | /* Address of .liblist section. */ | |
501 | #define DT_MIPS_LIBLIST 0x70000009 | |
502 | ||
503 | /* Number of local global offset table entries. */ | |
504 | #define DT_MIPS_LOCAL_GOTNO 0x7000000a | |
505 | ||
506 | /* Number of entries in the .conflict section. */ | |
507 | #define DT_MIPS_CONFLICTNO 0x7000000b | |
508 | ||
509 | /* Number of entries in the .liblist section. */ | |
510 | #define DT_MIPS_LIBLISTNO 0x70000010 | |
511 | ||
512 | /* Number of entries in the .dynsym section. */ | |
513 | #define DT_MIPS_SYMTABNO 0x70000011 | |
514 | ||
515 | /* Index of first external dynamic symbol not referenced locally. */ | |
516 | #define DT_MIPS_UNREFEXTNO 0x70000012 | |
517 | ||
518 | /* Index of first dynamic symbol in global offset table. */ | |
519 | #define DT_MIPS_GOTSYM 0x70000013 | |
520 | ||
521 | /* Number of page table entries in global offset table. */ | |
522 | #define DT_MIPS_HIPAGENO 0x70000014 | |
523 | ||
524 | /* Address of run time loader map, used for debugging. */ | |
525 | #define DT_MIPS_RLD_MAP 0x70000016 | |
526 | ||
527 | /* Delta C++ class definition. */ | |
528 | #define DT_MIPS_DELTA_CLASS 0x70000017 | |
529 | ||
530 | /* Number of entries in DT_MIPS_DELTA_CLASS. */ | |
531 | #define DT_MIPS_DELTA_CLASS_NO 0x70000018 | |
532 | ||
533 | /* Delta C++ class instances. */ | |
534 | #define DT_MIPS_DELTA_INSTANCE 0x70000019 | |
535 | ||
536 | /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ | |
537 | #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a | |
538 | ||
539 | /* Delta relocations. */ | |
540 | #define DT_MIPS_DELTA_RELOC 0x7000001b | |
541 | ||
542 | /* Number of entries in DT_MIPS_DELTA_RELOC. */ | |
543 | #define DT_MIPS_DELTA_RELOC_NO 0x7000001c | |
544 | ||
545 | /* Delta symbols that Delta relocations refer to. */ | |
546 | #define DT_MIPS_DELTA_SYM 0x7000001d | |
547 | ||
548 | /* Number of entries in DT_MIPS_DELTA_SYM. */ | |
549 | #define DT_MIPS_DELTA_SYM_NO 0x7000001e | |
550 | ||
551 | /* Delta symbols that hold class declarations. */ | |
552 | #define DT_MIPS_DELTA_CLASSSYM 0x70000020 | |
553 | ||
554 | /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ | |
555 | #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 | |
556 | ||
557 | /* Flags indicating information about C++ flavor. */ | |
558 | #define DT_MIPS_CXX_FLAGS 0x70000022 | |
559 | ||
560 | /* Pixie information (???). */ | |
561 | #define DT_MIPS_PIXIE_INIT 0x70000023 | |
562 | ||
563 | /* ??? */ | |
564 | #define DT_MIPS_SYMBOL_LIB 0x70000024 | |
565 | ||
566 | /* ??? */ | |
567 | #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 | |
568 | ||
569 | /* ??? */ | |
570 | #define DT_MIPS_LOCAL_GOTIDX 0x70000026 | |
571 | ||
572 | /* ??? */ | |
573 | #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 | |
574 | ||
575 | /* ??? */ | |
576 | #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 | |
577 | ||
578 | /* Address of `.MIPS.options'. */ | |
579 | #define DT_MIPS_OPTIONS 0x70000029 | |
580 | ||
581 | /* Address of `.interface'. */ | |
582 | #define DT_MIPS_INTERFACE 0x7000002a | |
583 | ||
584 | /* ??? */ | |
585 | #define DT_MIPS_DYNSTR_ALIGN 0x7000002b | |
586 | ||
587 | /* Size of the .interface section. */ | |
588 | #define DT_MIPS_INTERFACE_SIZE 0x7000002c | |
589 | ||
590 | /* Size of rld_text_resolve function stored in the GOT. */ | |
591 | #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d | |
592 | ||
593 | /* Default suffix of DSO to be added by rld on dlopen() calls. */ | |
594 | #define DT_MIPS_PERF_SUFFIX 0x7000002e | |
595 | ||
596 | /* Size of compact relocation section (O32). */ | |
597 | #define DT_MIPS_COMPACT_SIZE 0x7000002f | |
598 | ||
599 | /* GP value for auxiliary GOTs. */ | |
600 | #define DT_MIPS_GP_VALUE 0x70000030 | |
601 | ||
602 | /* Address of auxiliary .dynamic. */ | |
603 | #define DT_MIPS_AUX_DYNAMIC 0x70000031 | |
604 | \f | |
605 | /* Flags which may appear in a DT_MIPS_FLAGS entry. */ | |
606 | ||
607 | /* No flags. */ | |
608 | #define RHF_NONE 0x00000000 | |
609 | ||
610 | /* Uses shortcut pointers. */ | |
611 | #define RHF_QUICKSTART 0x00000001 | |
612 | ||
613 | /* Hash size is not a power of two. */ | |
614 | #define RHF_NOTPOT 0x00000002 | |
615 | ||
616 | /* Ignore LD_LIBRARY_PATH. */ | |
617 | #define RHS_NO_LIBRARY_REPLACEMENT \ | |
618 | 0x00000004 | |
619 | ||
620 | #define RHF_NO_MOVE 0x00000008 | |
621 | #define RHF_SGI_ONLY 0x00000010 | |
622 | #define RHF_GUARANTEE_INIT 0x00000020 | |
623 | #define RHF_DELTA_C_PLUS_PLUS 0x00000040 | |
624 | #define RHF_GUARANTEE_START_INIT 0x00000080 | |
625 | #define RHF_PIXIE 0x00000100 | |
626 | #define RHF_DEFAULT_DELAY_LOAD 0x00000200 | |
627 | #define RHF_REQUICKSTART 0x00000400 | |
628 | #define RHF_REQUICKSTARTED 0x00000800 | |
629 | #define RHF_CORD 0x00001000 | |
630 | #define RHF_NO_UNRES_UNDEF 0x00002000 | |
631 | #define RHF_RLD_ORDER_SAFE 0x00004000 | |
632 | \f | |
633 | /* Special values for the st_other field in the symbol table. These | |
634 | are used in an Irix 5 dynamic symbol table. */ | |
635 | ||
4fbca453 NC |
636 | #define STO_DEFAULT STV_DEFAULT |
637 | #define STO_INTERNAL STV_INTERNAL | |
638 | #define STO_HIDDEN STV_HIDDEN | |
639 | #define STO_PROTECTED STV_PROTECTED | |
252b5132 RH |
640 | |
641 | /* This value is used for a mips16 .text symbol. */ | |
642 | #define STO_MIPS16 0xf0 | |
643 | \f | |
644 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each | |
645 | relocation entry specifies up to three actual relocations, all at | |
646 | the same address. The first relocation which required a symbol | |
647 | uses the symbol in the r_sym field. The second relocation which | |
648 | requires a symbol uses the symbol in the r_ssym field. If all | |
649 | three relocations require a symbol, the third one uses a zero | |
650 | value. */ | |
651 | ||
652 | /* An entry in a 64 bit SHT_REL section. */ | |
653 | ||
654 | typedef struct | |
655 | { | |
656 | /* Address of relocation. */ | |
657 | unsigned char r_offset[8]; | |
658 | /* Symbol index. */ | |
659 | unsigned char r_sym[4]; | |
660 | /* Special symbol. */ | |
661 | unsigned char r_ssym[1]; | |
662 | /* Third relocation. */ | |
663 | unsigned char r_type3[1]; | |
664 | /* Second relocation. */ | |
665 | unsigned char r_type2[1]; | |
666 | /* First relocation. */ | |
667 | unsigned char r_type[1]; | |
668 | } Elf64_Mips_External_Rel; | |
669 | ||
670 | typedef struct | |
671 | { | |
672 | /* Address of relocation. */ | |
673 | bfd_vma r_offset; | |
674 | /* Symbol index. */ | |
675 | unsigned long r_sym; | |
676 | /* Special symbol. */ | |
677 | unsigned char r_ssym; | |
678 | /* Third relocation. */ | |
679 | unsigned char r_type3; | |
680 | /* Second relocation. */ | |
681 | unsigned char r_type2; | |
682 | /* First relocation. */ | |
683 | unsigned char r_type; | |
684 | } Elf64_Mips_Internal_Rel; | |
685 | ||
686 | /* An entry in a 64 bit SHT_RELA section. */ | |
687 | ||
688 | typedef struct | |
689 | { | |
690 | /* Address of relocation. */ | |
691 | unsigned char r_offset[8]; | |
692 | /* Symbol index. */ | |
693 | unsigned char r_sym[4]; | |
694 | /* Special symbol. */ | |
695 | unsigned char r_ssym[1]; | |
696 | /* Third relocation. */ | |
697 | unsigned char r_type3[1]; | |
698 | /* Second relocation. */ | |
699 | unsigned char r_type2[1]; | |
700 | /* First relocation. */ | |
701 | unsigned char r_type[1]; | |
702 | /* Addend. */ | |
703 | unsigned char r_addend[8]; | |
704 | } Elf64_Mips_External_Rela; | |
705 | ||
706 | typedef struct | |
707 | { | |
708 | /* Address of relocation. */ | |
709 | bfd_vma r_offset; | |
710 | /* Symbol index. */ | |
711 | unsigned long r_sym; | |
712 | /* Special symbol. */ | |
713 | unsigned char r_ssym; | |
714 | /* Third relocation. */ | |
715 | unsigned char r_type3; | |
716 | /* Second relocation. */ | |
717 | unsigned char r_type2; | |
718 | /* First relocation. */ | |
719 | unsigned char r_type; | |
720 | /* Addend. */ | |
721 | bfd_signed_vma r_addend; | |
722 | } Elf64_Mips_Internal_Rela; | |
723 | ||
724 | /* Values found in the r_ssym field of a relocation entry. */ | |
725 | ||
726 | /* No relocation. */ | |
727 | #define RSS_UNDEF 0 | |
728 | ||
729 | /* Value of GP. */ | |
730 | #define RSS_GP 1 | |
731 | ||
732 | /* Value of GP in object being relocated. */ | |
733 | #define RSS_GP0 2 | |
734 | ||
735 | /* Address of location being relocated. */ | |
736 | #define RSS_LOC 3 | |
737 | \f | |
738 | /* A SHT_MIPS_OPTIONS section contains a series of options, each of | |
739 | which starts with this header. */ | |
740 | ||
741 | typedef struct | |
742 | { | |
743 | /* Type of option. */ | |
744 | unsigned char kind[1]; | |
745 | /* Size of option descriptor, including header. */ | |
746 | unsigned char size[1]; | |
747 | /* Section index of affected section, or 0 for global option. */ | |
748 | unsigned char section[2]; | |
749 | /* Information specific to this kind of option. */ | |
750 | unsigned char info[4]; | |
751 | } Elf_External_Options; | |
752 | ||
753 | typedef struct | |
754 | { | |
755 | /* Type of option. */ | |
756 | unsigned char kind; | |
757 | /* Size of option descriptor, including header. */ | |
758 | unsigned char size; | |
759 | /* Section index of affected section, or 0 for global option. */ | |
760 | unsigned short section; | |
761 | /* Information specific to this kind of option. */ | |
762 | unsigned long info; | |
763 | } Elf_Internal_Options; | |
764 | ||
765 | /* MIPS ELF option header swapping routines. */ | |
766 | extern void bfd_mips_elf_swap_options_in | |
767 | PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *)); | |
768 | extern void bfd_mips_elf_swap_options_out | |
769 | PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *)); | |
770 | ||
771 | /* Values which may appear in the kind field of an Elf_Options | |
772 | structure. */ | |
773 | ||
774 | /* Undefined. */ | |
775 | #define ODK_NULL 0 | |
776 | ||
777 | /* Register usage and GP value. */ | |
778 | #define ODK_REGINFO 1 | |
779 | ||
780 | /* Exception processing information. */ | |
781 | #define ODK_EXCEPTIONS 2 | |
782 | ||
783 | /* Section padding information. */ | |
784 | #define ODK_PAD 3 | |
785 | ||
786 | /* Hardware workarounds performed. */ | |
787 | #define ODK_HWPATCH 4 | |
788 | ||
789 | /* Fill value used by the linker. */ | |
790 | #define ODK_FILL 5 | |
791 | ||
792 | /* Reserved space for desktop tools. */ | |
793 | #define ODK_TAGS 6 | |
794 | ||
795 | /* Hardware workarounds, AND bits when merging. */ | |
796 | #define ODK_HWAND 7 | |
797 | ||
798 | /* Hardware workarounds, OR bits when merging. */ | |
799 | #define ODK_HWOR 8 | |
800 | ||
801 | /* GP group to use for text/data sections. */ | |
802 | #define ODK_GP_GROUP 9 | |
803 | ||
804 | /* ID information. */ | |
805 | #define ODK_IDENT 10 | |
806 | ||
807 | /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo | |
808 | structure. In the 64 bit ABI, it is the following structure. The | |
809 | info field of the options header is not used. */ | |
810 | ||
811 | typedef struct | |
812 | { | |
813 | /* Mask of general purpose registers used. */ | |
814 | unsigned char ri_gprmask[4]; | |
815 | /* Padding. */ | |
816 | unsigned char ri_pad[4]; | |
817 | /* Mask of co-processor registers used. */ | |
818 | unsigned char ri_cprmask[4][4]; | |
819 | /* GP register value for this object file. */ | |
820 | unsigned char ri_gp_value[8]; | |
821 | } Elf64_External_RegInfo; | |
822 | ||
823 | typedef struct | |
824 | { | |
825 | /* Mask of general purpose registers used. */ | |
826 | unsigned long ri_gprmask; | |
827 | /* Padding. */ | |
828 | unsigned long ri_pad; | |
829 | /* Mask of co-processor registers used. */ | |
830 | unsigned long ri_cprmask[4]; | |
831 | /* GP register value for this object file. */ | |
832 | bfd_vma ri_gp_value; | |
833 | } Elf64_Internal_RegInfo; | |
834 | ||
030d863d MM |
835 | typedef struct |
836 | { | |
837 | /* The hash value computed from the name of the corresponding | |
838 | dynamic symbol. */ | |
839 | unsigned char ms_hash_value[4]; | |
840 | /* Contains both the dynamic relocation index and the symbol flags | |
841 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used | |
842 | to access the individual values. The dynamic relocation index | |
843 | identifies the first entry in the .rel.dyn section that | |
844 | references the dynamic symbol corresponding to this msym entry. | |
845 | If the index is 0, no dynamic relocations are associated with the | |
846 | symbol. The symbol flags field is reserved for future use. */ | |
847 | unsigned char ms_info[4]; | |
848 | } Elf32_External_Msym; | |
849 | ||
850 | typedef struct | |
851 | { | |
852 | /* The hash value computed from the name of the corresponding | |
853 | dynamic symbol. */ | |
854 | unsigned long ms_hash_value; | |
855 | /* Contains both the dynamic relocation index and the symbol flags | |
856 | field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used | |
857 | to access the individual values. The dynamic relocation index | |
858 | identifies the first entry in the .rel.dyn section that | |
859 | references the dynamic symbol corresponding to this msym entry. | |
860 | If the index is 0, no dynamic relocations are associated with the | |
861 | symbol. The symbol flags field is reserved for future use. */ | |
862 | unsigned long ms_info; | |
863 | } Elf32_Internal_Msym; | |
864 | ||
865 | #define ELF32_MS_REL_INDEX(i) ((i) >> 8) | |
866 | #define ELF32_MS_FLAGS(i) (i) & 0xff) | |
867 | #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) | |
868 | ||
252b5132 RH |
869 | /* MIPS ELF reginfo swapping routines. */ |
870 | extern void bfd_mips_elf64_swap_reginfo_in | |
871 | PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *)); | |
872 | extern void bfd_mips_elf64_swap_reginfo_out | |
873 | PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *)); | |
874 | ||
875 | /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ | |
876 | #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ | |
877 | #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ | |
878 | #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ | |
879 | #define OEX_SMM 0x20000 /* Force sequential memory mode. */ | |
880 | #define OEX_FPDBUG 0x40000 /* Force floating-point debug mode. */ | |
881 | #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ | |
882 | ||
883 | /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ | |
884 | #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ | |
885 | #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ | |
886 | #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ | |
887 | #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ | |
888 | #define OEX_FPU_INEX 0x01 /* Inexact exception. */ | |
889 | ||
890 | /* Masks for the info word of an ODK_PAD descriptor. */ | |
891 | #define OPAD_PREFIX 0x01 | |
892 | #define OPAD_POSTFIX 0x02 | |
893 | #define OPAD_SYMBOL 0x04 | |
894 | ||
895 | /* Masks for the info word of an ODK_HWPATCH descriptor. */ | |
896 | #define OHW_R4KEOP 0x01 /* R4000 end-of-page patch. */ | |
897 | #define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */ | |
898 | #define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */ | |
899 | #define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */ | |
900 | ||
901 | /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ | |
902 | #define OGP_GROUP 0x0000ffff /* GP group number. */ | |
903 | #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ | |
904 | ||
905 | /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ | |
906 | #define OHWA0_R4KEOP_CHECKED 0x00000001 | |
907 | #define OHWA0_R4KEOP_CLEAN 0x00000002 | |
908 | \f | |
909 | ||
910 | #endif /* _ELF_MIPS_H */ |