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252b5132 RH |
1 | /* MIPS ELF support for BFD. |
2 | Copyright (C) 1993, 1994, 1995, 1996, 1998 Free Software Foundation, Inc. | |
3 | ||
4 | By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from | |
5 | information in the System V Application Binary Interface, MIPS | |
6 | Processor Supplement. | |
7 | ||
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | /* This file holds definitions specific to the MIPS ELF ABI. Note | |
25 | that most of this is not actually implemented by BFD. */ | |
26 | ||
27 | #ifndef _ELF_MIPS_H | |
28 | #define _ELF_MIPS_H | |
29 | ||
30 | #include "elf/reloc-macros.h" | |
31 | ||
32 | /* Relocation types. */ | |
33 | START_RELOC_NUMBERS (elf_mips_reloc_type) | |
34 | RELOC_NUMBER (R_MIPS_NONE, 0) | |
35 | RELOC_NUMBER (R_MIPS_16, 1) | |
36 | RELOC_NUMBER (R_MIPS_32, 2) | |
37 | RELOC_NUMBER (R_MIPS_REL32, 3) | |
38 | RELOC_NUMBER (R_MIPS_26, 4) | |
39 | RELOC_NUMBER (R_MIPS_HI16, 5) | |
40 | RELOC_NUMBER (R_MIPS_LO16, 6) | |
41 | RELOC_NUMBER (R_MIPS_GPREL16, 7) | |
42 | RELOC_NUMBER (R_MIPS_LITERAL, 8) | |
43 | RELOC_NUMBER (R_MIPS_GOT16, 9) | |
44 | RELOC_NUMBER (R_MIPS_PC16, 10) | |
45 | RELOC_NUMBER (R_MIPS_CALL16, 11) | |
46 | RELOC_NUMBER (R_MIPS_GPREL32, 12) | |
47 | /* The remaining relocs are defined on Irix, although they are not | |
48 | in the MIPS ELF ABI. */ | |
49 | RELOC_NUMBER (R_MIPS_UNUSED1, 13) | |
50 | RELOC_NUMBER (R_MIPS_UNUSED2, 14) | |
51 | RELOC_NUMBER (R_MIPS_UNUSED3, 15) | |
52 | RELOC_NUMBER (R_MIPS_SHIFT5, 16) | |
53 | RELOC_NUMBER (R_MIPS_SHIFT6, 17) | |
54 | RELOC_NUMBER (R_MIPS_64, 18) | |
55 | RELOC_NUMBER (R_MIPS_GOT_DISP, 19) | |
56 | RELOC_NUMBER (R_MIPS_GOT_PAGE, 20) | |
57 | RELOC_NUMBER (R_MIPS_GOT_OFST, 21) | |
58 | RELOC_NUMBER (R_MIPS_GOT_HI16, 22) | |
59 | RELOC_NUMBER (R_MIPS_GOT_LO16, 23) | |
60 | RELOC_NUMBER (R_MIPS_SUB, 24) | |
61 | RELOC_NUMBER (R_MIPS_INSERT_A, 25) | |
62 | RELOC_NUMBER (R_MIPS_INSERT_B, 26) | |
63 | RELOC_NUMBER (R_MIPS_DELETE, 27) | |
64 | RELOC_NUMBER (R_MIPS_HIGHER, 28) | |
65 | RELOC_NUMBER (R_MIPS_HIGHEST, 29) | |
66 | RELOC_NUMBER (R_MIPS_CALL_HI16, 30) | |
67 | RELOC_NUMBER (R_MIPS_CALL_LO16, 31) | |
68 | RELOC_NUMBER (R_MIPS_SCN_DISP, 32) | |
69 | RELOC_NUMBER (R_MIPS_REL16, 33) | |
70 | RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34) | |
71 | RELOC_NUMBER (R_MIPS_PJUMP, 35) | |
72 | RELOC_NUMBER (R_MIPS_RELGOT, 36) | |
73 | RELOC_NUMBER (R_MIPS_JALR, 37) | |
74 | RELOC_NUMBER (R_MIPS_max, 38) | |
75 | /* These relocs are used for the mips16. */ | |
76 | RELOC_NUMBER (R_MIPS16_26, 100) | |
77 | RELOC_NUMBER (R_MIPS16_GPREL, 101) | |
78 | /* These are GNU extensions to enable C++ vtable garbage collection. */ | |
79 | RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253) | |
80 | RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254) | |
81 | END_RELOC_NUMBERS | |
82 | ||
83 | /* Processor specific flags for the ELF header e_flags field. */ | |
84 | ||
85 | /* At least one .noreorder directive appears in the source. */ | |
86 | #define EF_MIPS_NOREORDER 0x00000001 | |
87 | ||
88 | /* File contains position independent code. */ | |
89 | #define EF_MIPS_PIC 0x00000002 | |
90 | ||
91 | /* Code in file uses the standard calling sequence for calling | |
92 | position independent code. */ | |
93 | #define EF_MIPS_CPIC 0x00000004 | |
94 | ||
95 | /* Code in file uses new ABI (-n32 on Irix 6). */ | |
96 | #define EF_MIPS_ABI2 0x00000020 | |
97 | ||
98 | /* Indicates code compiled for a 64-bit machine in 32-bit mode. | |
99 | (regs are 32-bits wide.) */ | |
100 | #define EF_MIPS_32BITMODE 0x00000100 | |
101 | ||
102 | /* Four bit MIPS architecture field. */ | |
103 | #define EF_MIPS_ARCH 0xf0000000 | |
104 | ||
105 | /* -mips1 code. */ | |
106 | #define E_MIPS_ARCH_1 0x00000000 | |
107 | ||
108 | /* -mips2 code. */ | |
109 | #define E_MIPS_ARCH_2 0x10000000 | |
110 | ||
111 | /* -mips3 code. */ | |
112 | #define E_MIPS_ARCH_3 0x20000000 | |
113 | ||
114 | /* -mips4 code. */ | |
115 | #define E_MIPS_ARCH_4 0x30000000 | |
116 | ||
117 | /* The ABI of the file. Also see EF_MIPS_ABI2 above. */ | |
118 | #define EF_MIPS_ABI 0x0000F000 | |
119 | ||
120 | /* The original o32 abi. */ | |
121 | #define E_MIPS_ABI_O32 0x00001000 | |
122 | ||
123 | /* O32 extended to work on 64 bit architectures */ | |
124 | #define E_MIPS_ABI_O64 0x00002000 | |
125 | ||
126 | /* EABI in 32 bit mode */ | |
127 | #define E_MIPS_ABI_EABI32 0x00003000 | |
128 | ||
129 | /* EABI in 64 bit mode */ | |
130 | #define E_MIPS_ABI_EABI64 0x00004000 | |
131 | ||
132 | ||
133 | /* Machine variant if we know it. This field was invented at Cygnus, | |
134 | but it is hoped that other vendors will adopt it. If some standard | |
135 | is developed, this code should be changed to follow it. */ | |
136 | ||
137 | #define EF_MIPS_MACH 0x00FF0000 | |
138 | ||
139 | /* Cygnus is choosing values between 80 and 9F; | |
140 | 00 - 7F should be left for a future standard; | |
141 | the rest are open. */ | |
142 | ||
143 | #define E_MIPS_MACH_3900 0x00810000 | |
144 | ||
145 | #define E_MIPS_MACH_4010 0x00820000 | |
146 | #define E_MIPS_MACH_4100 0x00830000 | |
147 | #define E_MIPS_MACH_4650 0x00850000 | |
148 | #define E_MIPS_MACH_4111 0x00880000 | |
149 | ||
150 | \f | |
151 | /* Processor specific section indices. These sections do not actually | |
152 | exist. Symbols with a st_shndx field corresponding to one of these | |
153 | values have a special meaning. */ | |
154 | ||
155 | /* Defined and allocated common symbol. Value is virtual address. If | |
156 | relocated, alignment must be preserved. */ | |
157 | #define SHN_MIPS_ACOMMON 0xff00 | |
158 | ||
159 | /* Defined and allocated text symbol. Value is virtual address. | |
160 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
161 | #define SHN_MIPS_TEXT 0xff01 | |
162 | ||
163 | /* Defined and allocated data symbol. Value is virtual address. | |
164 | Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ | |
165 | #define SHN_MIPS_DATA 0xff02 | |
166 | ||
167 | /* Small common symbol. */ | |
168 | #define SHN_MIPS_SCOMMON 0xff03 | |
169 | ||
170 | /* Small undefined symbol. */ | |
171 | #define SHN_MIPS_SUNDEFINED 0xff04 | |
172 | \f | |
173 | /* Processor specific section types. */ | |
174 | ||
175 | /* Section contains the set of dynamic shared objects used when | |
176 | statically linking. */ | |
177 | #define SHT_MIPS_LIBLIST 0x70000000 | |
178 | ||
179 | /* I'm not sure what this is, but it's used on Irix 5. */ | |
180 | #define SHT_MIPS_MSYM 0x70000001 | |
181 | ||
182 | /* Section contains list of symbols whose definitions conflict with | |
183 | symbols defined in shared objects. */ | |
184 | #define SHT_MIPS_CONFLICT 0x70000002 | |
185 | ||
186 | /* Section contains the global pointer table. */ | |
187 | #define SHT_MIPS_GPTAB 0x70000003 | |
188 | ||
189 | /* Section contains microcode information. The exact format is | |
190 | unspecified. */ | |
191 | #define SHT_MIPS_UCODE 0x70000004 | |
192 | ||
193 | /* Section contains some sort of debugging information. The exact | |
194 | format is unspecified. It's probably ECOFF symbols. */ | |
195 | #define SHT_MIPS_DEBUG 0x70000005 | |
196 | ||
197 | /* Section contains register usage information. */ | |
198 | #define SHT_MIPS_REGINFO 0x70000006 | |
199 | ||
200 | /* ??? */ | |
201 | #define SHT_MIPS_PACKAGE 0x70000007 | |
202 | ||
203 | /* ??? */ | |
204 | #define SHT_MIPS_PACKSYM 0x70000008 | |
205 | ||
206 | /* ??? */ | |
207 | #define SHT_MIPS_RELD 0x70000009 | |
208 | ||
209 | /* Section contains interface information. */ | |
210 | #define SHT_MIPS_IFACE 0x7000000b | |
211 | ||
212 | /* Section contains description of contents of another section. */ | |
213 | #define SHT_MIPS_CONTENT 0x7000000c | |
214 | ||
215 | /* Section contains miscellaneous options. */ | |
216 | #define SHT_MIPS_OPTIONS 0x7000000d | |
217 | ||
218 | /* ??? */ | |
219 | #define SHT_MIPS_SHDR 0x70000010 | |
220 | ||
221 | /* ??? */ | |
222 | #define SHT_MIPS_FDESC 0x70000011 | |
223 | ||
224 | /* ??? */ | |
225 | #define SHT_MIPS_EXTSYM 0x70000012 | |
226 | ||
227 | /* ??? */ | |
228 | #define SHT_MIPS_DENSE 0x70000013 | |
229 | ||
230 | /* ??? */ | |
231 | #define SHT_MIPS_PDESC 0x70000014 | |
232 | ||
233 | /* ??? */ | |
234 | #define SHT_MIPS_LOCSYM 0x70000015 | |
235 | ||
236 | /* ??? */ | |
237 | #define SHT_MIPS_AUXSYM 0x70000016 | |
238 | ||
239 | /* ??? */ | |
240 | #define SHT_MIPS_OPTSYM 0x70000017 | |
241 | ||
242 | /* ??? */ | |
243 | #define SHT_MIPS_LOCSTR 0x70000018 | |
244 | ||
245 | /* ??? */ | |
246 | #define SHT_MIPS_LINE 0x70000019 | |
247 | ||
248 | /* ??? */ | |
249 | #define SHT_MIPS_RFDESC 0x7000001a | |
250 | ||
251 | /* ??? */ | |
252 | #define SHT_MIPS_DELTASYM 0x7000001b | |
253 | ||
254 | /* ??? */ | |
255 | #define SHT_MIPS_DELTAINST 0x7000001c | |
256 | ||
257 | /* ??? */ | |
258 | #define SHT_MIPS_DELTACLASS 0x7000001d | |
259 | ||
260 | /* DWARF debugging section. */ | |
261 | #define SHT_MIPS_DWARF 0x7000001e | |
262 | ||
263 | /* ??? */ | |
264 | #define SHT_MIPS_DELTADECL 0x7000001f | |
265 | ||
266 | /* List of libraries the binary depends on. Includes a time stamp, version | |
267 | number. */ | |
268 | #define SHT_MIPS_SYMBOL_LIB 0x70000020 | |
269 | ||
270 | /* Events section. */ | |
271 | #define SHT_MIPS_EVENTS 0x70000021 | |
272 | ||
273 | /* ??? */ | |
274 | #define SHT_MIPS_TRANSLATE 0x70000022 | |
275 | ||
276 | /* ??? */ | |
277 | #define SHT_MIPS_PIXIE 0x70000023 | |
278 | ||
279 | /* ??? */ | |
280 | #define SHT_MIPS_XLATE 0x70000024 | |
281 | ||
282 | /* ??? */ | |
283 | #define SHT_MIPS_XLATE_DEBUG 0x70000025 | |
284 | ||
285 | /* ??? */ | |
286 | #define SHT_MIPS_WHIRL 0x70000026 | |
287 | ||
288 | /* ??? */ | |
289 | #define SHT_MIPS_EH_REGION 0x70000027 | |
290 | ||
291 | /* ??? */ | |
292 | #define SHT_MIPS_XLATE_OLD 0x70000028 | |
293 | ||
294 | /* ??? */ | |
295 | #define SHT_MIPS_PDR_EXCEPTION 0x70000029 | |
296 | ||
297 | ||
298 | /* A section of type SHT_MIPS_LIBLIST contains an array of the | |
299 | following structure. The sh_link field is the section index of the | |
300 | string table. The sh_info field is the number of entries in the | |
301 | section. */ | |
302 | typedef struct | |
303 | { | |
304 | /* String table index for name of shared object. */ | |
305 | unsigned long l_name; | |
306 | /* Time stamp. */ | |
307 | unsigned long l_time_stamp; | |
308 | /* Checksum of symbol names and common sizes. */ | |
309 | unsigned long l_checksum; | |
310 | /* String table index for version. */ | |
311 | unsigned long l_version; | |
312 | /* Flags. */ | |
313 | unsigned long l_flags; | |
314 | } Elf32_Lib; | |
315 | ||
316 | /* The external version of Elf32_Lib. */ | |
317 | typedef struct | |
318 | { | |
319 | unsigned char l_name[4]; | |
320 | unsigned char l_time_stamp[4]; | |
321 | unsigned char l_checksum[4]; | |
322 | unsigned char l_version[4]; | |
323 | unsigned char l_flags[4]; | |
324 | } Elf32_External_Lib; | |
325 | ||
326 | /* The l_flags field of an Elf32_Lib structure may contain the | |
327 | following flags. */ | |
328 | ||
329 | /* Require an exact match at runtime. */ | |
330 | #define LL_EXACT_MATCH 0x00000001 | |
331 | ||
332 | /* Ignore version incompatibilities at runtime. */ | |
333 | #define LL_IGNORE_INT_VER 0x00000002 | |
334 | ||
335 | /* Require matching minor version number. */ | |
336 | #define LL_REQUIRE_MINOR 0x00000004 | |
337 | ||
338 | /* ??? */ | |
339 | #define LL_EXPORTS 0x00000008 | |
340 | ||
341 | /* Delay loading of this library until really needed. */ | |
342 | #define LL_DELAY_LOAD 0x00000010 | |
343 | ||
344 | /* ??? Delta C++ stuff ??? */ | |
345 | #define LL_DELTA 0x00000020 | |
346 | ||
347 | ||
348 | /* A section of type SHT_MIPS_CONFLICT is an array of indices into the | |
349 | .dynsym section. Each element has the following type. */ | |
350 | typedef unsigned long Elf32_Conflict; | |
351 | typedef unsigned char Elf32_External_Conflict[4]; | |
352 | ||
353 | typedef unsigned long Elf64_Conflict; | |
354 | typedef unsigned char Elf64_External_Conflict[8]; | |
355 | ||
356 | /* A section of type SHT_MIPS_GPTAB contains information about how | |
357 | much GP space would be required for different -G arguments. This | |
358 | information is only used so that the linker can provide informative | |
359 | suggestions as to the best -G value to use. The sh_info field is | |
360 | the index of the section for which this information applies. The | |
361 | contents of the section are an array of the following union. The | |
362 | first element uses the gt_header field. The remaining elements use | |
363 | the gt_entry field. */ | |
364 | typedef union | |
365 | { | |
366 | struct | |
367 | { | |
368 | /* -G value actually used for this object file. */ | |
369 | unsigned long gt_current_g_value; | |
370 | /* Unused. */ | |
371 | unsigned long gt_unused; | |
372 | } gt_header; | |
373 | struct | |
374 | { | |
375 | /* If this -G argument has been used... */ | |
376 | unsigned long gt_g_value; | |
377 | /* ...this many GP section bytes would be required. */ | |
378 | unsigned long gt_bytes; | |
379 | } gt_entry; | |
380 | } Elf32_gptab; | |
381 | ||
382 | /* The external version of Elf32_gptab. */ | |
383 | ||
384 | typedef union | |
385 | { | |
386 | struct | |
387 | { | |
388 | unsigned char gt_current_g_value[4]; | |
389 | unsigned char gt_unused[4]; | |
390 | } gt_header; | |
391 | struct | |
392 | { | |
393 | unsigned char gt_g_value[4]; | |
394 | unsigned char gt_bytes[4]; | |
395 | } gt_entry; | |
396 | } Elf32_External_gptab; | |
397 | ||
398 | /* A section of type SHT_MIPS_REGINFO contains the following | |
399 | structure. */ | |
400 | typedef struct | |
401 | { | |
402 | /* Mask of general purpose registers used. */ | |
403 | unsigned long ri_gprmask; | |
404 | /* Mask of co-processor registers used. */ | |
405 | unsigned long ri_cprmask[4]; | |
406 | /* GP register value for this object file. */ | |
407 | long ri_gp_value; | |
408 | } Elf32_RegInfo; | |
409 | ||
410 | /* The external version of the Elf_RegInfo structure. */ | |
411 | typedef struct | |
412 | { | |
413 | unsigned char ri_gprmask[4]; | |
414 | unsigned char ri_cprmask[4][4]; | |
415 | unsigned char ri_gp_value[4]; | |
416 | } Elf32_External_RegInfo; | |
417 | ||
418 | /* MIPS ELF .reginfo swapping routines. */ | |
419 | extern void bfd_mips_elf32_swap_reginfo_in | |
420 | PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *)); | |
421 | extern void bfd_mips_elf32_swap_reginfo_out | |
422 | PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *)); | |
423 | \f | |
424 | /* Processor specific section flags. */ | |
425 | ||
426 | /* This section must be in the global data area. */ | |
427 | #define SHF_MIPS_GPREL 0x10000000 | |
428 | ||
429 | /* This section should be merged. */ | |
430 | #define SHF_MIPS_MERGE 0x20000000 | |
431 | ||
432 | /* This section contains 32 bit addresses. */ | |
433 | #define SHF_MIPS_ADDR32 0x40000000 | |
434 | ||
435 | /* This section contains 64 bit addresses. */ | |
436 | #define SHF_MIPS_ADDR64 0x80000000 | |
437 | ||
438 | /* This section may not be stripped. */ | |
439 | #define SHF_MIPS_NOSTRIP 0x08000000 | |
440 | ||
441 | /* This section is local to threads. */ | |
442 | #define SHF_MIPS_LOCAL 0x04000000 | |
443 | ||
444 | /* Linker should generate implicit weak names for this section. */ | |
445 | #define SHF_MIPS_NAMES 0x02000000 | |
446 | \f | |
447 | /* Processor specific program header types. */ | |
448 | ||
449 | /* Register usage information. Identifies one .reginfo section. */ | |
450 | #define PT_MIPS_REGINFO 0x70000000 | |
451 | ||
452 | /* Runtime procedure table. */ | |
453 | #define PT_MIPS_RTPROC 0x70000001 | |
454 | ||
455 | /* Options (for what ???). */ | |
456 | #define PT_MIPS_OPTIONS 0x70000002 | |
457 | \f | |
458 | /* Processor specific dynamic array tags. */ | |
459 | ||
460 | /* 32 bit version number for runtime linker interface. */ | |
461 | #define DT_MIPS_RLD_VERSION 0x70000001 | |
462 | ||
463 | /* Time stamp. */ | |
464 | #define DT_MIPS_TIME_STAMP 0x70000002 | |
465 | ||
466 | /* Checksum of external strings and common sizes. */ | |
467 | #define DT_MIPS_ICHECKSUM 0x70000003 | |
468 | ||
469 | /* Index of version string in string table. */ | |
470 | #define DT_MIPS_IVERSION 0x70000004 | |
471 | ||
472 | /* 32 bits of flags. */ | |
473 | #define DT_MIPS_FLAGS 0x70000005 | |
474 | ||
475 | /* Base address of the segment. */ | |
476 | #define DT_MIPS_BASE_ADDRESS 0x70000006 | |
477 | ||
478 | /* ??? */ | |
479 | #define DT_MIPS_MSYM 0x70000007 | |
480 | ||
481 | /* Address of .conflict section. */ | |
482 | #define DT_MIPS_CONFLICT 0x70000008 | |
483 | ||
484 | /* Address of .liblist section. */ | |
485 | #define DT_MIPS_LIBLIST 0x70000009 | |
486 | ||
487 | /* Number of local global offset table entries. */ | |
488 | #define DT_MIPS_LOCAL_GOTNO 0x7000000a | |
489 | ||
490 | /* Number of entries in the .conflict section. */ | |
491 | #define DT_MIPS_CONFLICTNO 0x7000000b | |
492 | ||
493 | /* Number of entries in the .liblist section. */ | |
494 | #define DT_MIPS_LIBLISTNO 0x70000010 | |
495 | ||
496 | /* Number of entries in the .dynsym section. */ | |
497 | #define DT_MIPS_SYMTABNO 0x70000011 | |
498 | ||
499 | /* Index of first external dynamic symbol not referenced locally. */ | |
500 | #define DT_MIPS_UNREFEXTNO 0x70000012 | |
501 | ||
502 | /* Index of first dynamic symbol in global offset table. */ | |
503 | #define DT_MIPS_GOTSYM 0x70000013 | |
504 | ||
505 | /* Number of page table entries in global offset table. */ | |
506 | #define DT_MIPS_HIPAGENO 0x70000014 | |
507 | ||
508 | /* Address of run time loader map, used for debugging. */ | |
509 | #define DT_MIPS_RLD_MAP 0x70000016 | |
510 | ||
511 | /* Delta C++ class definition. */ | |
512 | #define DT_MIPS_DELTA_CLASS 0x70000017 | |
513 | ||
514 | /* Number of entries in DT_MIPS_DELTA_CLASS. */ | |
515 | #define DT_MIPS_DELTA_CLASS_NO 0x70000018 | |
516 | ||
517 | /* Delta C++ class instances. */ | |
518 | #define DT_MIPS_DELTA_INSTANCE 0x70000019 | |
519 | ||
520 | /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ | |
521 | #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a | |
522 | ||
523 | /* Delta relocations. */ | |
524 | #define DT_MIPS_DELTA_RELOC 0x7000001b | |
525 | ||
526 | /* Number of entries in DT_MIPS_DELTA_RELOC. */ | |
527 | #define DT_MIPS_DELTA_RELOC_NO 0x7000001c | |
528 | ||
529 | /* Delta symbols that Delta relocations refer to. */ | |
530 | #define DT_MIPS_DELTA_SYM 0x7000001d | |
531 | ||
532 | /* Number of entries in DT_MIPS_DELTA_SYM. */ | |
533 | #define DT_MIPS_DELTA_SYM_NO 0x7000001e | |
534 | ||
535 | /* Delta symbols that hold class declarations. */ | |
536 | #define DT_MIPS_DELTA_CLASSSYM 0x70000020 | |
537 | ||
538 | /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ | |
539 | #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 | |
540 | ||
541 | /* Flags indicating information about C++ flavor. */ | |
542 | #define DT_MIPS_CXX_FLAGS 0x70000022 | |
543 | ||
544 | /* Pixie information (???). */ | |
545 | #define DT_MIPS_PIXIE_INIT 0x70000023 | |
546 | ||
547 | /* ??? */ | |
548 | #define DT_MIPS_SYMBOL_LIB 0x70000024 | |
549 | ||
550 | /* ??? */ | |
551 | #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 | |
552 | ||
553 | /* ??? */ | |
554 | #define DT_MIPS_LOCAL_GOTIDX 0x70000026 | |
555 | ||
556 | /* ??? */ | |
557 | #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 | |
558 | ||
559 | /* ??? */ | |
560 | #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 | |
561 | ||
562 | /* Address of `.MIPS.options'. */ | |
563 | #define DT_MIPS_OPTIONS 0x70000029 | |
564 | ||
565 | /* Address of `.interface'. */ | |
566 | #define DT_MIPS_INTERFACE 0x7000002a | |
567 | ||
568 | /* ??? */ | |
569 | #define DT_MIPS_DYNSTR_ALIGN 0x7000002b | |
570 | ||
571 | /* Size of the .interface section. */ | |
572 | #define DT_MIPS_INTERFACE_SIZE 0x7000002c | |
573 | ||
574 | /* Size of rld_text_resolve function stored in the GOT. */ | |
575 | #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d | |
576 | ||
577 | /* Default suffix of DSO to be added by rld on dlopen() calls. */ | |
578 | #define DT_MIPS_PERF_SUFFIX 0x7000002e | |
579 | ||
580 | /* Size of compact relocation section (O32). */ | |
581 | #define DT_MIPS_COMPACT_SIZE 0x7000002f | |
582 | ||
583 | /* GP value for auxiliary GOTs. */ | |
584 | #define DT_MIPS_GP_VALUE 0x70000030 | |
585 | ||
586 | /* Address of auxiliary .dynamic. */ | |
587 | #define DT_MIPS_AUX_DYNAMIC 0x70000031 | |
588 | \f | |
589 | /* Flags which may appear in a DT_MIPS_FLAGS entry. */ | |
590 | ||
591 | /* No flags. */ | |
592 | #define RHF_NONE 0x00000000 | |
593 | ||
594 | /* Uses shortcut pointers. */ | |
595 | #define RHF_QUICKSTART 0x00000001 | |
596 | ||
597 | /* Hash size is not a power of two. */ | |
598 | #define RHF_NOTPOT 0x00000002 | |
599 | ||
600 | /* Ignore LD_LIBRARY_PATH. */ | |
601 | #define RHS_NO_LIBRARY_REPLACEMENT \ | |
602 | 0x00000004 | |
603 | ||
604 | #define RHF_NO_MOVE 0x00000008 | |
605 | #define RHF_SGI_ONLY 0x00000010 | |
606 | #define RHF_GUARANTEE_INIT 0x00000020 | |
607 | #define RHF_DELTA_C_PLUS_PLUS 0x00000040 | |
608 | #define RHF_GUARANTEE_START_INIT 0x00000080 | |
609 | #define RHF_PIXIE 0x00000100 | |
610 | #define RHF_DEFAULT_DELAY_LOAD 0x00000200 | |
611 | #define RHF_REQUICKSTART 0x00000400 | |
612 | #define RHF_REQUICKSTARTED 0x00000800 | |
613 | #define RHF_CORD 0x00001000 | |
614 | #define RHF_NO_UNRES_UNDEF 0x00002000 | |
615 | #define RHF_RLD_ORDER_SAFE 0x00004000 | |
616 | \f | |
617 | /* Special values for the st_other field in the symbol table. These | |
618 | are used in an Irix 5 dynamic symbol table. */ | |
619 | ||
620 | #define STO_DEFAULT 0x00 | |
621 | #define STO_INTERNAL 0x01 | |
622 | #define STO_HIDDEN 0x02 | |
623 | #define STO_PROTECTED 0x03 | |
624 | ||
625 | /* This value is used for a mips16 .text symbol. */ | |
626 | #define STO_MIPS16 0xf0 | |
627 | \f | |
628 | /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each | |
629 | relocation entry specifies up to three actual relocations, all at | |
630 | the same address. The first relocation which required a symbol | |
631 | uses the symbol in the r_sym field. The second relocation which | |
632 | requires a symbol uses the symbol in the r_ssym field. If all | |
633 | three relocations require a symbol, the third one uses a zero | |
634 | value. */ | |
635 | ||
636 | /* An entry in a 64 bit SHT_REL section. */ | |
637 | ||
638 | typedef struct | |
639 | { | |
640 | /* Address of relocation. */ | |
641 | unsigned char r_offset[8]; | |
642 | /* Symbol index. */ | |
643 | unsigned char r_sym[4]; | |
644 | /* Special symbol. */ | |
645 | unsigned char r_ssym[1]; | |
646 | /* Third relocation. */ | |
647 | unsigned char r_type3[1]; | |
648 | /* Second relocation. */ | |
649 | unsigned char r_type2[1]; | |
650 | /* First relocation. */ | |
651 | unsigned char r_type[1]; | |
652 | } Elf64_Mips_External_Rel; | |
653 | ||
654 | typedef struct | |
655 | { | |
656 | /* Address of relocation. */ | |
657 | bfd_vma r_offset; | |
658 | /* Symbol index. */ | |
659 | unsigned long r_sym; | |
660 | /* Special symbol. */ | |
661 | unsigned char r_ssym; | |
662 | /* Third relocation. */ | |
663 | unsigned char r_type3; | |
664 | /* Second relocation. */ | |
665 | unsigned char r_type2; | |
666 | /* First relocation. */ | |
667 | unsigned char r_type; | |
668 | } Elf64_Mips_Internal_Rel; | |
669 | ||
670 | /* An entry in a 64 bit SHT_RELA section. */ | |
671 | ||
672 | typedef struct | |
673 | { | |
674 | /* Address of relocation. */ | |
675 | unsigned char r_offset[8]; | |
676 | /* Symbol index. */ | |
677 | unsigned char r_sym[4]; | |
678 | /* Special symbol. */ | |
679 | unsigned char r_ssym[1]; | |
680 | /* Third relocation. */ | |
681 | unsigned char r_type3[1]; | |
682 | /* Second relocation. */ | |
683 | unsigned char r_type2[1]; | |
684 | /* First relocation. */ | |
685 | unsigned char r_type[1]; | |
686 | /* Addend. */ | |
687 | unsigned char r_addend[8]; | |
688 | } Elf64_Mips_External_Rela; | |
689 | ||
690 | typedef struct | |
691 | { | |
692 | /* Address of relocation. */ | |
693 | bfd_vma r_offset; | |
694 | /* Symbol index. */ | |
695 | unsigned long r_sym; | |
696 | /* Special symbol. */ | |
697 | unsigned char r_ssym; | |
698 | /* Third relocation. */ | |
699 | unsigned char r_type3; | |
700 | /* Second relocation. */ | |
701 | unsigned char r_type2; | |
702 | /* First relocation. */ | |
703 | unsigned char r_type; | |
704 | /* Addend. */ | |
705 | bfd_signed_vma r_addend; | |
706 | } Elf64_Mips_Internal_Rela; | |
707 | ||
708 | /* Values found in the r_ssym field of a relocation entry. */ | |
709 | ||
710 | /* No relocation. */ | |
711 | #define RSS_UNDEF 0 | |
712 | ||
713 | /* Value of GP. */ | |
714 | #define RSS_GP 1 | |
715 | ||
716 | /* Value of GP in object being relocated. */ | |
717 | #define RSS_GP0 2 | |
718 | ||
719 | /* Address of location being relocated. */ | |
720 | #define RSS_LOC 3 | |
721 | \f | |
722 | /* A SHT_MIPS_OPTIONS section contains a series of options, each of | |
723 | which starts with this header. */ | |
724 | ||
725 | typedef struct | |
726 | { | |
727 | /* Type of option. */ | |
728 | unsigned char kind[1]; | |
729 | /* Size of option descriptor, including header. */ | |
730 | unsigned char size[1]; | |
731 | /* Section index of affected section, or 0 for global option. */ | |
732 | unsigned char section[2]; | |
733 | /* Information specific to this kind of option. */ | |
734 | unsigned char info[4]; | |
735 | } Elf_External_Options; | |
736 | ||
737 | typedef struct | |
738 | { | |
739 | /* Type of option. */ | |
740 | unsigned char kind; | |
741 | /* Size of option descriptor, including header. */ | |
742 | unsigned char size; | |
743 | /* Section index of affected section, or 0 for global option. */ | |
744 | unsigned short section; | |
745 | /* Information specific to this kind of option. */ | |
746 | unsigned long info; | |
747 | } Elf_Internal_Options; | |
748 | ||
749 | /* MIPS ELF option header swapping routines. */ | |
750 | extern void bfd_mips_elf_swap_options_in | |
751 | PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *)); | |
752 | extern void bfd_mips_elf_swap_options_out | |
753 | PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *)); | |
754 | ||
755 | /* Values which may appear in the kind field of an Elf_Options | |
756 | structure. */ | |
757 | ||
758 | /* Undefined. */ | |
759 | #define ODK_NULL 0 | |
760 | ||
761 | /* Register usage and GP value. */ | |
762 | #define ODK_REGINFO 1 | |
763 | ||
764 | /* Exception processing information. */ | |
765 | #define ODK_EXCEPTIONS 2 | |
766 | ||
767 | /* Section padding information. */ | |
768 | #define ODK_PAD 3 | |
769 | ||
770 | /* Hardware workarounds performed. */ | |
771 | #define ODK_HWPATCH 4 | |
772 | ||
773 | /* Fill value used by the linker. */ | |
774 | #define ODK_FILL 5 | |
775 | ||
776 | /* Reserved space for desktop tools. */ | |
777 | #define ODK_TAGS 6 | |
778 | ||
779 | /* Hardware workarounds, AND bits when merging. */ | |
780 | #define ODK_HWAND 7 | |
781 | ||
782 | /* Hardware workarounds, OR bits when merging. */ | |
783 | #define ODK_HWOR 8 | |
784 | ||
785 | /* GP group to use for text/data sections. */ | |
786 | #define ODK_GP_GROUP 9 | |
787 | ||
788 | /* ID information. */ | |
789 | #define ODK_IDENT 10 | |
790 | ||
791 | /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo | |
792 | structure. In the 64 bit ABI, it is the following structure. The | |
793 | info field of the options header is not used. */ | |
794 | ||
795 | typedef struct | |
796 | { | |
797 | /* Mask of general purpose registers used. */ | |
798 | unsigned char ri_gprmask[4]; | |
799 | /* Padding. */ | |
800 | unsigned char ri_pad[4]; | |
801 | /* Mask of co-processor registers used. */ | |
802 | unsigned char ri_cprmask[4][4]; | |
803 | /* GP register value for this object file. */ | |
804 | unsigned char ri_gp_value[8]; | |
805 | } Elf64_External_RegInfo; | |
806 | ||
807 | typedef struct | |
808 | { | |
809 | /* Mask of general purpose registers used. */ | |
810 | unsigned long ri_gprmask; | |
811 | /* Padding. */ | |
812 | unsigned long ri_pad; | |
813 | /* Mask of co-processor registers used. */ | |
814 | unsigned long ri_cprmask[4]; | |
815 | /* GP register value for this object file. */ | |
816 | bfd_vma ri_gp_value; | |
817 | } Elf64_Internal_RegInfo; | |
818 | ||
819 | /* MIPS ELF reginfo swapping routines. */ | |
820 | extern void bfd_mips_elf64_swap_reginfo_in | |
821 | PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *)); | |
822 | extern void bfd_mips_elf64_swap_reginfo_out | |
823 | PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *)); | |
824 | ||
825 | /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ | |
826 | #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ | |
827 | #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ | |
828 | #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ | |
829 | #define OEX_SMM 0x20000 /* Force sequential memory mode. */ | |
830 | #define OEX_FPDBUG 0x40000 /* Force floating-point debug mode. */ | |
831 | #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ | |
832 | ||
833 | /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ | |
834 | #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ | |
835 | #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ | |
836 | #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ | |
837 | #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ | |
838 | #define OEX_FPU_INEX 0x01 /* Inexact exception. */ | |
839 | ||
840 | /* Masks for the info word of an ODK_PAD descriptor. */ | |
841 | #define OPAD_PREFIX 0x01 | |
842 | #define OPAD_POSTFIX 0x02 | |
843 | #define OPAD_SYMBOL 0x04 | |
844 | ||
845 | /* Masks for the info word of an ODK_HWPATCH descriptor. */ | |
846 | #define OHW_R4KEOP 0x01 /* R4000 end-of-page patch. */ | |
847 | #define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */ | |
848 | #define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */ | |
849 | #define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */ | |
850 | ||
851 | /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ | |
852 | #define OGP_GROUP 0x0000ffff /* GP group number. */ | |
853 | #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ | |
854 | ||
855 | /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ | |
856 | #define OHWA0_R4KEOP_CHECKED 0x00000001 | |
857 | #define OHWA0_R4KEOP_CLEAN 0x00000002 | |
858 | \f | |
859 | ||
860 | #endif /* _ELF_MIPS_H */ |