xref: /dragonfly/contrib/gdb-7/include/elf/mips.h (revision 2b3f93ea)
1 /* MIPS ELF support for BFD.
2    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3    2003, 2004, 2005, 2008, 2009, 2010, 2013
4    Free Software Foundation, Inc.
5 
6    By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
7    information in the System V Application Binary Interface, MIPS
8    Processor Supplement.
9 
10    This file is part of BFD, the Binary File Descriptor library.
11 
12    This program is free software; you can redistribute it and/or modify
13    it under the terms of the GNU General Public License as published by
14    the Free Software Foundation; either version 3 of the License, or
15    (at your option) any later version.
16 
17    This program is distributed in the hope that it will be useful,
18    but WITHOUT ANY WARRANTY; without even the implied warranty of
19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20    GNU General Public License for more details.
21 
22    You should have received a copy of the GNU General Public License
23    along with this program; if not, write to the Free Software
24    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25    MA 02110-1301, USA.  */
26 
27 /* This file holds definitions specific to the MIPS ELF ABI.  Note
28    that most of this is not actually implemented by BFD.  */
29 
30 #ifndef _ELF_MIPS_H
31 #define _ELF_MIPS_H
32 
33 #include "elf/reloc-macros.h"
34 
35 /* Relocation types.  */
36 START_RELOC_NUMBERS (elf_mips_reloc_type)
37   RELOC_NUMBER (R_MIPS_NONE, 0)
38   RELOC_NUMBER (R_MIPS_16, 1)
39   RELOC_NUMBER (R_MIPS_32, 2)		/* In Elf 64: alias R_MIPS_ADD */
40   RELOC_NUMBER (R_MIPS_REL32, 3)	/* In Elf 64: alias R_MIPS_REL */
41   RELOC_NUMBER (R_MIPS_26, 4)
42   RELOC_NUMBER (R_MIPS_HI16, 5)
43   RELOC_NUMBER (R_MIPS_LO16, 6)
44   RELOC_NUMBER (R_MIPS_GPREL16, 7)	/* In Elf 64: alias R_MIPS_GPREL */
45   RELOC_NUMBER (R_MIPS_LITERAL, 8)
46   RELOC_NUMBER (R_MIPS_GOT16, 9)	/* In Elf 64: alias R_MIPS_GOT */
47   RELOC_NUMBER (R_MIPS_PC16, 10)
48   RELOC_NUMBER (R_MIPS_CALL16, 11)	/* In Elf 64: alias R_MIPS_CALL */
49   RELOC_NUMBER (R_MIPS_GPREL32, 12)
50   /* The remaining relocs are defined on Irix, although they are not
51      in the MIPS ELF ABI.  */
52   RELOC_NUMBER (R_MIPS_UNUSED1, 13)
53   RELOC_NUMBER (R_MIPS_UNUSED2, 14)
54   RELOC_NUMBER (R_MIPS_UNUSED3, 15)
55   RELOC_NUMBER (R_MIPS_SHIFT5, 16)
56   RELOC_NUMBER (R_MIPS_SHIFT6, 17)
57   RELOC_NUMBER (R_MIPS_64, 18)
58   RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
59   RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
60   RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
61   RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
62   RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
63   RELOC_NUMBER (R_MIPS_SUB, 24)
64   RELOC_NUMBER (R_MIPS_INSERT_A, 25)
65   RELOC_NUMBER (R_MIPS_INSERT_B, 26)
66   RELOC_NUMBER (R_MIPS_DELETE, 27)
67   RELOC_NUMBER (R_MIPS_HIGHER, 28)
68   RELOC_NUMBER (R_MIPS_HIGHEST, 29)
69   RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
70   RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
71   RELOC_NUMBER (R_MIPS_SCN_DISP, 32)
72   RELOC_NUMBER (R_MIPS_REL16, 33)
73   RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34)
74   RELOC_NUMBER (R_MIPS_PJUMP, 35)
75   RELOC_NUMBER (R_MIPS_RELGOT, 36)
76   RELOC_NUMBER (R_MIPS_JALR, 37)
77   /* TLS relocations.  */
78   RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38)
79   RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39)
80   RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40)
81   RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41)
82   RELOC_NUMBER (R_MIPS_TLS_GD, 42)
83   RELOC_NUMBER (R_MIPS_TLS_LDM, 43)
84   RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44)
85   RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45)
86   RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46)
87   RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47)
88   RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48)
89   RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49)
90   RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50)
91   RELOC_NUMBER (R_MIPS_GLOB_DAT, 51)
92   FAKE_RELOC (R_MIPS_max, 52)
93   /* These relocs are used for the mips16.  */
94   FAKE_RELOC (R_MIPS16_min, 100)
95   RELOC_NUMBER (R_MIPS16_26, 100)
96   RELOC_NUMBER (R_MIPS16_GPREL, 101)
97   RELOC_NUMBER (R_MIPS16_GOT16, 102)
98   RELOC_NUMBER (R_MIPS16_CALL16, 103)
99   RELOC_NUMBER (R_MIPS16_HI16, 104)
100   RELOC_NUMBER (R_MIPS16_LO16, 105)
101   RELOC_NUMBER (R_MIPS16_TLS_GD, 106)
102   RELOC_NUMBER (R_MIPS16_TLS_LDM, 107)
103   RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108)
104   RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109)
105   RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110)
106   RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111)
107   RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112)
108   FAKE_RELOC (R_MIPS16_max, 113)
109   /* These relocations are specific to VxWorks.  */
110   RELOC_NUMBER (R_MIPS_COPY, 126)
111   RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127)
112 
113   /* These relocations are specific to microMIPS.  */
114   FAKE_RELOC (R_MICROMIPS_min, 130)
115   RELOC_NUMBER (R_MICROMIPS_26_S1, 133)
116   RELOC_NUMBER (R_MICROMIPS_HI16, 134)
117   RELOC_NUMBER (R_MICROMIPS_LO16, 135)
118   RELOC_NUMBER (R_MICROMIPS_GPREL16, 136)	/* In Elf 64:
119 						   alias R_MICROMIPS_GPREL */
120   RELOC_NUMBER (R_MICROMIPS_LITERAL, 137)
121   RELOC_NUMBER (R_MICROMIPS_GOT16, 138)		/* In Elf 64:
122 						   alias R_MICROMIPS_GOT */
123   RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139)
124   RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140)
125   RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141)
126   RELOC_NUMBER (R_MICROMIPS_CALL16, 142)	/* In Elf 64:
127 						   alias R_MICROMIPS_CALL */
128   RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145)
129   RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146)
130   RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147)
131   RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148)
132   RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149)
133   RELOC_NUMBER (R_MICROMIPS_SUB, 150)
134   RELOC_NUMBER (R_MICROMIPS_HIGHER, 151)
135   RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152)
136   RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153)
137   RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154)
138   RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155)
139   RELOC_NUMBER (R_MICROMIPS_JALR, 156)
140   RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157)
141   /* TLS relocations.  */
142   RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162)
143   RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163)
144   RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164)
145   RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165)
146   RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166)
147   RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169)
148   RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170)
149   /* microMIPS GP- and PC-relative relocations. */
150   RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172)
151   RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173)
152   FAKE_RELOC (R_MICROMIPS_max, 174)
153 
154   /* This was a GNU extension used by embedded-PIC.  It was co-opted by
155      mips-linux for exception-handling data.  It is no longer used, but
156      should continue to be supported by the linker for backward
157      compatibility.  (GCC stopped using it in May, 2004.)  */
158   RELOC_NUMBER (R_MIPS_PC32, 248)
159   /* FIXME: this relocation is used internally by gas.  */
160   RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
161   /* These are GNU extensions to enable C++ vtable garbage collection.  */
162   RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
163   RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
164 END_RELOC_NUMBERS (R_MIPS_maxext)
165 
166 /* Processor specific flags for the ELF header e_flags field.  */
167 
168 /* At least one .noreorder directive appears in the source.  */
169 #define EF_MIPS_NOREORDER	0x00000001
170 
171 /* File contains position independent code.  */
172 #define EF_MIPS_PIC		0x00000002
173 
174 /* Code in file uses the standard calling sequence for calling
175    position independent code.  */
176 #define EF_MIPS_CPIC		0x00000004
177 
178 /* ???  Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a.  */
179 #define EF_MIPS_XGOT		0x00000008
180 
181 /* Code in file uses UCODE (obsolete) */
182 #define EF_MIPS_UCODE		0x00000010
183 
184 /* Code in file uses new ABI (-n32 on Irix 6).  */
185 #define EF_MIPS_ABI2		0x00000020
186 
187 /* Process the .MIPS.options section first by ld */
188 #define EF_MIPS_OPTIONS_FIRST	0x00000080
189 
190 /* Indicates code compiled for a 64-bit machine in 32-bit mode
191    (regs are 32-bits wide).  */
192 #define EF_MIPS_32BITMODE	0x00000100
193 
194 /* Architectural Extensions used by this file */
195 #define EF_MIPS_ARCH_ASE	0x0f000000
196 
197 /* Use MDMX multimedia extensions */
198 #define EF_MIPS_ARCH_ASE_MDMX	0x08000000
199 
200 /* Use MIPS-16 ISA extensions */
201 #define EF_MIPS_ARCH_ASE_M16	0x04000000
202 
203 /* Use MICROMIPS ISA extensions.  */
204 #define EF_MIPS_ARCH_ASE_MICROMIPS	0x02000000
205 
206 /* Four bit MIPS architecture field.  */
207 #define EF_MIPS_ARCH		0xf0000000
208 
209 /* -mips1 code.  */
210 #define E_MIPS_ARCH_1		0x00000000
211 
212 /* -mips2 code.  */
213 #define E_MIPS_ARCH_2		0x10000000
214 
215 /* -mips3 code.  */
216 #define E_MIPS_ARCH_3		0x20000000
217 
218 /* -mips4 code.  */
219 #define E_MIPS_ARCH_4		0x30000000
220 
221 /* -mips5 code.  */
222 #define E_MIPS_ARCH_5           0x40000000
223 
224 /* -mips32 code.  */
225 #define E_MIPS_ARCH_32          0x50000000
226 
227 /* -mips64 code.  */
228 #define E_MIPS_ARCH_64          0x60000000
229 
230 /* -mips32r2 code.  */
231 #define E_MIPS_ARCH_32R2        0x70000000
232 
233 /* -mips64r2 code.  */
234 #define E_MIPS_ARCH_64R2        0x80000000
235 
236 /* The ABI of the file.  Also see EF_MIPS_ABI2 above. */
237 #define EF_MIPS_ABI		0x0000F000
238 
239 /* The original o32 abi. */
240 #define E_MIPS_ABI_O32          0x00001000
241 
242 /* O32 extended to work on 64 bit architectures */
243 #define E_MIPS_ABI_O64          0x00002000
244 
245 /* EABI in 32 bit mode */
246 #define E_MIPS_ABI_EABI32       0x00003000
247 
248 /* EABI in 64 bit mode */
249 #define E_MIPS_ABI_EABI64       0x00004000
250 
251 
252 /* Machine variant if we know it.  This field was invented at Cygnus,
253    but it is hoped that other vendors will adopt it.  If some standard
254    is developed, this code should be changed to follow it. */
255 
256 #define EF_MIPS_MACH		0x00FF0000
257 
258 /* Cygnus is choosing values between 80 and 9F;
259    00 - 7F should be left for a future standard;
260    the rest are open. */
261 
262 #define E_MIPS_MACH_3900	0x00810000
263 #define E_MIPS_MACH_4010	0x00820000
264 #define E_MIPS_MACH_4100	0x00830000
265 #define E_MIPS_MACH_4650	0x00850000
266 #define E_MIPS_MACH_4120	0x00870000
267 #define E_MIPS_MACH_4111	0x00880000
268 #define E_MIPS_MACH_SB1         0x008a0000
269 #define E_MIPS_MACH_OCTEON	0x008b0000
270 #define E_MIPS_MACH_XLR     	0x008c0000
271 #define E_MIPS_MACH_OCTEON2	0x008d0000
272 #define E_MIPS_MACH_5400	0x00910000
273 #define E_MIPS_MACH_5900	0x00920000
274 #define E_MIPS_MACH_5500	0x00980000
275 #define E_MIPS_MACH_9000	0x00990000
276 #define E_MIPS_MACH_LS2E        0x00A00000
277 #define E_MIPS_MACH_LS2F        0x00A10000
278 #define E_MIPS_MACH_LS3A        0x00A20000
279 
280 /* Processor specific section indices.  These sections do not actually
281    exist.  Symbols with a st_shndx field corresponding to one of these
282    values have a special meaning.  */
283 
284 /* Defined and allocated common symbol.  Value is virtual address.  If
285    relocated, alignment must be preserved.  */
286 #define SHN_MIPS_ACOMMON	SHN_LORESERVE
287 
288 /* Defined and allocated text symbol.  Value is virtual address.
289    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
290 #define SHN_MIPS_TEXT		(SHN_LORESERVE + 1)
291 
292 /* Defined and allocated data symbol.  Value is virtual address.
293    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
294 #define SHN_MIPS_DATA		(SHN_LORESERVE + 2)
295 
296 /* Small common symbol.  */
297 #define SHN_MIPS_SCOMMON	(SHN_LORESERVE + 3)
298 
299 /* Small undefined symbol.  */
300 #define SHN_MIPS_SUNDEFINED	(SHN_LORESERVE + 4)
301 
302 /* Processor specific section types.  */
303 
304 /* Section contains the set of dynamic shared objects used when
305    statically linking.  */
306 #define SHT_MIPS_LIBLIST	0x70000000
307 
308 /* I'm not sure what this is, but it's used on Irix 5.  */
309 #define SHT_MIPS_MSYM		0x70000001
310 
311 /* Section contains list of symbols whose definitions conflict with
312    symbols defined in shared objects.  */
313 #define SHT_MIPS_CONFLICT	0x70000002
314 
315 /* Section contains the global pointer table.  */
316 #define SHT_MIPS_GPTAB		0x70000003
317 
318 /* Section contains microcode information.  The exact format is
319    unspecified.  */
320 #define SHT_MIPS_UCODE		0x70000004
321 
322 /* Section contains some sort of debugging information.  The exact
323    format is unspecified.  It's probably ECOFF symbols.  */
324 #define SHT_MIPS_DEBUG		0x70000005
325 
326 /* Section contains register usage information.  */
327 #define SHT_MIPS_REGINFO	0x70000006
328 
329 /* ??? */
330 #define SHT_MIPS_PACKAGE	0x70000007
331 
332 /* ??? */
333 #define SHT_MIPS_PACKSYM	0x70000008
334 
335 /* ??? */
336 #define SHT_MIPS_RELD		0x70000009
337 
338 /* Section contains interface information.  */
339 #define SHT_MIPS_IFACE		0x7000000b
340 
341 /* Section contains description of contents of another section.  */
342 #define SHT_MIPS_CONTENT	0x7000000c
343 
344 /* Section contains miscellaneous options.  */
345 #define SHT_MIPS_OPTIONS	0x7000000d
346 
347 /* ??? */
348 #define SHT_MIPS_SHDR		0x70000010
349 
350 /* ??? */
351 #define SHT_MIPS_FDESC		0x70000011
352 
353 /* ??? */
354 #define SHT_MIPS_EXTSYM		0x70000012
355 
356 /* ??? */
357 #define SHT_MIPS_DENSE		0x70000013
358 
359 /* ??? */
360 #define SHT_MIPS_PDESC		0x70000014
361 
362 /* ??? */
363 #define SHT_MIPS_LOCSYM		0x70000015
364 
365 /* ??? */
366 #define SHT_MIPS_AUXSYM		0x70000016
367 
368 /* ??? */
369 #define SHT_MIPS_OPTSYM		0x70000017
370 
371 /* ??? */
372 #define SHT_MIPS_LOCSTR		0x70000018
373 
374 /* ??? */
375 #define SHT_MIPS_LINE		0x70000019
376 
377 /* ??? */
378 #define SHT_MIPS_RFDESC		0x7000001a
379 
380 /* Delta C++: symbol table */
381 #define SHT_MIPS_DELTASYM	0x7000001b
382 
383 /* Delta C++: instance table */
384 #define SHT_MIPS_DELTAINST	0x7000001c
385 
386 /* Delta C++: class table */
387 #define SHT_MIPS_DELTACLASS	0x7000001d
388 
389 /* DWARF debugging section.  */
390 #define SHT_MIPS_DWARF		0x7000001e
391 
392 /* Delta C++: declarations */
393 #define SHT_MIPS_DELTADECL	0x7000001f
394 
395 /* List of libraries the binary depends on.  Includes a time stamp, version
396    number.  */
397 #define SHT_MIPS_SYMBOL_LIB	0x70000020
398 
399 /* Events section.  */
400 #define SHT_MIPS_EVENTS		0x70000021
401 
402 /* ??? */
403 #define SHT_MIPS_TRANSLATE	0x70000022
404 
405 /* Special pixie sections */
406 #define SHT_MIPS_PIXIE		0x70000023
407 
408 /* Address translation table (for debug info) */
409 #define SHT_MIPS_XLATE		0x70000024
410 
411 /* SGI internal address translation table (for debug info) */
412 #define SHT_MIPS_XLATE_DEBUG	0x70000025
413 
414 /* Intermediate code */
415 #define SHT_MIPS_WHIRL		0x70000026
416 
417 /* C++ exception handling region info */
418 #define SHT_MIPS_EH_REGION	0x70000027
419 
420 /* Obsolete address translation table (for debug info) */
421 #define SHT_MIPS_XLATE_OLD	0x70000028
422 
423 /* Runtime procedure descriptor table exception information (ucode) ??? */
424 #define SHT_MIPS_PDR_EXCEPTION	0x70000029
425 
426 
427 /* A section of type SHT_MIPS_LIBLIST contains an array of the
428    following structure.  The sh_link field is the section index of the
429    string table.  The sh_info field is the number of entries in the
430    section.  */
431 typedef struct
432 {
433   /* String table index for name of shared object.  */
434   unsigned long l_name;
435   /* Time stamp.  */
436   unsigned long l_time_stamp;
437   /* Checksum of symbol names and common sizes.  */
438   unsigned long l_checksum;
439   /* String table index for version.  */
440   unsigned long l_version;
441   /* Flags.  */
442   unsigned long l_flags;
443 } Elf32_Lib;
444 
445 /* The external version of Elf32_Lib.  */
446 typedef struct
447 {
448   unsigned char l_name[4];
449   unsigned char l_time_stamp[4];
450   unsigned char l_checksum[4];
451   unsigned char l_version[4];
452   unsigned char l_flags[4];
453 } Elf32_External_Lib;
454 
455 /* The l_flags field of an Elf32_Lib structure may contain the
456    following flags.  */
457 
458 /* Require an exact match at runtime.  */
459 #define LL_EXACT_MATCH		0x00000001
460 
461 /* Ignore version incompatibilities at runtime.  */
462 #define LL_IGNORE_INT_VER	0x00000002
463 
464 /* Require matching minor version number.  */
465 #define LL_REQUIRE_MINOR	0x00000004
466 
467 /* ??? */
468 #define LL_EXPORTS		0x00000008
469 
470 /* Delay loading of this library until really needed.  */
471 #define LL_DELAY_LOAD		0x00000010
472 
473 /* ??? Delta C++ stuff ??? */
474 #define LL_DELTA		0x00000020
475 
476 
477 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
478    .dynsym section.  Each element has the following type.  */
479 typedef unsigned long Elf32_Conflict;
480 typedef unsigned char Elf32_External_Conflict[4];
481 
482 typedef unsigned long Elf64_Conflict;
483 typedef unsigned char Elf64_External_Conflict[8];
484 
485 /* A section of type SHT_MIPS_GPTAB contains information about how
486    much GP space would be required for different -G arguments.  This
487    information is only used so that the linker can provide informative
488    suggestions as to the best -G value to use.  The sh_info field is
489    the index of the section for which this information applies.  The
490    contents of the section are an array of the following union.  The
491    first element uses the gt_header field.  The remaining elements use
492    the gt_entry field.  */
493 typedef union
494 {
495   struct
496     {
497       /* -G value actually used for this object file.  */
498       unsigned long gt_current_g_value;
499       /* Unused.  */
500       unsigned long gt_unused;
501     } gt_header;
502   struct
503     {
504       /* If this -G argument has been used...  */
505       unsigned long gt_g_value;
506       /* ...this many GP section bytes would be required.  */
507       unsigned long gt_bytes;
508     } gt_entry;
509 } Elf32_gptab;
510 
511 /* The external version of Elf32_gptab.  */
512 
513 typedef union
514 {
515   struct
516     {
517       unsigned char gt_current_g_value[4];
518       unsigned char gt_unused[4];
519     } gt_header;
520   struct
521     {
522       unsigned char gt_g_value[4];
523       unsigned char gt_bytes[4];
524     } gt_entry;
525 } Elf32_External_gptab;
526 
527 /* A section of type SHT_MIPS_REGINFO contains the following
528    structure.  */
529 typedef struct
530 {
531   /* Mask of general purpose registers used.  */
532   unsigned long ri_gprmask;
533   /* Mask of co-processor registers used.  */
534   unsigned long ri_cprmask[4];
535   /* GP register value for this object file.  */
536   long ri_gp_value;
537 } Elf32_RegInfo;
538 
539 /* The external version of the Elf_RegInfo structure.  */
540 typedef struct
541 {
542   unsigned char ri_gprmask[4];
543   unsigned char ri_cprmask[4][4];
544   unsigned char ri_gp_value[4];
545 } Elf32_External_RegInfo;
546 
547 /* MIPS ELF .reginfo swapping routines.  */
548 extern void bfd_mips_elf32_swap_reginfo_in
549   (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *);
550 extern void bfd_mips_elf32_swap_reginfo_out
551   (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *);
552 
553 /* Processor specific section flags.  */
554 
555 /* This section must be in the global data area.  */
556 #define SHF_MIPS_GPREL		0x10000000
557 
558 /* This section should be merged.  */
559 #define SHF_MIPS_MERGE		0x20000000
560 
561 /* This section contains address data of size implied by section
562    element size.  */
563 #define SHF_MIPS_ADDR		0x40000000
564 
565 /* This section contains string data.  */
566 #define SHF_MIPS_STRING		0x80000000
567 
568 /* This section may not be stripped.  */
569 #define SHF_MIPS_NOSTRIP	0x08000000
570 
571 /* This section is local to threads.  */
572 #define SHF_MIPS_LOCAL		0x04000000
573 
574 /* Linker should generate implicit weak names for this section.  */
575 #define SHF_MIPS_NAMES		0x02000000
576 
577 /* Section contais text/data which may be replicated in other sections.
578    Linker should retain only one copy.  */
579 #define SHF_MIPS_NODUPES	0x01000000
580 
581 /* Processor specific program header types.  */
582 
583 /* Register usage information.  Identifies one .reginfo section.  */
584 #define PT_MIPS_REGINFO		0x70000000
585 
586 /* Runtime procedure table.  */
587 #define PT_MIPS_RTPROC		0x70000001
588 
589 /* .MIPS.options section.  */
590 #define PT_MIPS_OPTIONS		0x70000002
591 
592 /* Processor specific dynamic array tags.  */
593 
594 /* 32 bit version number for runtime linker interface.  */
595 #define DT_MIPS_RLD_VERSION	0x70000001
596 
597 /* Time stamp.  */
598 #define DT_MIPS_TIME_STAMP	0x70000002
599 
600 /* Checksum of external strings and common sizes.  */
601 #define DT_MIPS_ICHECKSUM	0x70000003
602 
603 /* Index of version string in string table.  */
604 #define DT_MIPS_IVERSION	0x70000004
605 
606 /* 32 bits of flags.  */
607 #define DT_MIPS_FLAGS		0x70000005
608 
609 /* Base address of the segment.  */
610 #define DT_MIPS_BASE_ADDRESS	0x70000006
611 
612 /* ??? */
613 #define DT_MIPS_MSYM		0x70000007
614 
615 /* Address of .conflict section.  */
616 #define DT_MIPS_CONFLICT	0x70000008
617 
618 /* Address of .liblist section.  */
619 #define DT_MIPS_LIBLIST		0x70000009
620 
621 /* Number of local global offset table entries.  */
622 #define DT_MIPS_LOCAL_GOTNO	0x7000000a
623 
624 /* Number of entries in the .conflict section.  */
625 #define DT_MIPS_CONFLICTNO	0x7000000b
626 
627 /* Number of entries in the .liblist section.  */
628 #define DT_MIPS_LIBLISTNO	0x70000010
629 
630 /* Number of entries in the .dynsym section.  */
631 #define DT_MIPS_SYMTABNO	0x70000011
632 
633 /* Index of first external dynamic symbol not referenced locally.  */
634 #define DT_MIPS_UNREFEXTNO	0x70000012
635 
636 /* Index of first dynamic symbol in global offset table.  */
637 #define DT_MIPS_GOTSYM		0x70000013
638 
639 /* Number of page table entries in global offset table.  */
640 #define DT_MIPS_HIPAGENO	0x70000014
641 
642 /* Address of run time loader map, used for debugging.  */
643 #define DT_MIPS_RLD_MAP		0x70000016
644 
645 /* Delta C++ class definition.  */
646 #define DT_MIPS_DELTA_CLASS	0x70000017
647 
648 /* Number of entries in DT_MIPS_DELTA_CLASS.  */
649 #define DT_MIPS_DELTA_CLASS_NO	0x70000018
650 
651 /* Delta C++ class instances.  */
652 #define DT_MIPS_DELTA_INSTANCE	0x70000019
653 
654 /* Number of entries in DT_MIPS_DELTA_INSTANCE.  */
655 #define DT_MIPS_DELTA_INSTANCE_NO	0x7000001a
656 
657 /* Delta relocations.  */
658 #define DT_MIPS_DELTA_RELOC	0x7000001b
659 
660 /* Number of entries in DT_MIPS_DELTA_RELOC.  */
661 #define DT_MIPS_DELTA_RELOC_NO	0x7000001c
662 
663 /* Delta symbols that Delta relocations refer to.  */
664 #define DT_MIPS_DELTA_SYM	0x7000001d
665 
666 /* Number of entries in DT_MIPS_DELTA_SYM.  */
667 #define DT_MIPS_DELTA_SYM_NO	0x7000001e
668 
669 /* Delta symbols that hold class declarations.  */
670 #define DT_MIPS_DELTA_CLASSSYM	0x70000020
671 
672 /* Number of entries in DT_MIPS_DELTA_CLASSSYM.  */
673 #define DT_MIPS_DELTA_CLASSSYM_NO	0x70000021
674 
675 /* Flags indicating information about C++ flavor.  */
676 #define DT_MIPS_CXX_FLAGS	0x70000022
677 
678 /* Pixie information (???).  */
679 #define DT_MIPS_PIXIE_INIT	0x70000023
680 
681 /* Address of .MIPS.symlib */
682 #define DT_MIPS_SYMBOL_LIB	0x70000024
683 
684 /* The GOT index of the first PTE for a segment */
685 #define DT_MIPS_LOCALPAGE_GOTIDX	0x70000025
686 
687 /* The GOT index of the first PTE for a local symbol */
688 #define DT_MIPS_LOCAL_GOTIDX	0x70000026
689 
690 /* The GOT index of the first PTE for a hidden symbol */
691 #define DT_MIPS_HIDDEN_GOTIDX	0x70000027
692 
693 /* The GOT index of the first PTE for a protected symbol */
694 #define DT_MIPS_PROTECTED_GOTIDX	0x70000028
695 
696 /* Address of `.MIPS.options'.  */
697 #define DT_MIPS_OPTIONS		0x70000029
698 
699 /* Address of `.interface'.  */
700 #define DT_MIPS_INTERFACE	0x7000002a
701 
702 /* ??? */
703 #define DT_MIPS_DYNSTR_ALIGN	0x7000002b
704 
705 /* Size of the .interface section.  */
706 #define DT_MIPS_INTERFACE_SIZE	0x7000002c
707 
708 /* Size of rld_text_resolve function stored in the GOT.  */
709 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR	0x7000002d
710 
711 /* Default suffix of DSO to be added by rld on dlopen() calls.  */
712 #define DT_MIPS_PERF_SUFFIX	0x7000002e
713 
714 /* Size of compact relocation section (O32).  */
715 #define DT_MIPS_COMPACT_SIZE	0x7000002f
716 
717 /* GP value for auxiliary GOTs.  */
718 #define DT_MIPS_GP_VALUE	0x70000030
719 
720 /* Address of auxiliary .dynamic.  */
721 #define DT_MIPS_AUX_DYNAMIC	0x70000031
722 
723 /* Address of the base of the PLTGOT.  */
724 #define DT_MIPS_PLTGOT         0x70000032
725 
726 /* Points to the base of a writable PLT.  */
727 #define DT_MIPS_RWPLT          0x70000034
728 
729 /* Flags which may appear in a DT_MIPS_FLAGS entry.  */
730 
731 /* No flags.  */
732 #define RHF_NONE		0x00000000
733 
734 /* Uses shortcut pointers.  */
735 #define RHF_QUICKSTART		0x00000001
736 
737 /* Hash size is not a power of two.  */
738 #define RHF_NOTPOT		0x00000002
739 
740 /* Ignore LD_LIBRARY_PATH.  */
741 #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004
742 
743 /* DSO address may not be relocated. */
744 #define RHF_NO_MOVE		0x00000008
745 
746 /* SGI specific features. */
747 #define RHF_SGI_ONLY		0x00000010
748 
749 /* Guarantee that .init will finish executing before any non-init
750    code in DSO is called. */
751 #define RHF_GUARANTEE_INIT	   0x00000020
752 
753 /* Contains Delta C++ code. */
754 #define RHF_DELTA_C_PLUS_PLUS	   0x00000040
755 
756 /* Guarantee that .init will start executing before any non-init
757    code in DSO is called. */
758 #define RHF_GUARANTEE_START_INIT   0x00000080
759 
760 /* Generated by pixie. */
761 #define RHF_PIXIE		   0x00000100
762 
763 /* Delay-load DSO by default. */
764 #define RHF_DEFAULT_DELAY_LOAD	   0x00000200
765 
766 /* Object may be requickstarted */
767 #define RHF_REQUICKSTART	   0x00000400
768 
769 /* Object has been requickstarted */
770 #define RHF_REQUICKSTARTED	   0x00000800
771 
772 /* Generated by cord. */
773 #define RHF_CORD		   0x00001000
774 
775 /* Object contains no unresolved undef symbols. */
776 #define RHF_NO_UNRES_UNDEF	   0x00002000
777 
778 /* Symbol table is in a safe order. */
779 #define RHF_RLD_ORDER_SAFE	   0x00004000
780 
781 /* Special values for the st_other field in the symbol table.  These
782    are used in an Irix 5 dynamic symbol table.  */
783 
784 #define STO_DEFAULT		STV_DEFAULT
785 #define STO_INTERNAL		STV_INTERNAL
786 #define STO_HIDDEN		STV_HIDDEN
787 #define STO_PROTECTED		STV_PROTECTED
788 
789 /* Two topmost bits denote the MIPS ISA for .text symbols:
790    + 00 -- standard MIPS code,
791    + 10 -- microMIPS code,
792    + 11 -- MIPS16 code; requires the following two bits to be set too.
793    Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.  See below
794    for details.  */
795 #define STO_MIPS_ISA		(3 << 6)
796 
797 /* The mask spanning the rest of MIPS psABI flags.  At most one is expected
798    to be set except for STO_MIPS16.  */
799 #define STO_MIPS_FLAGS		(~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1)))
800 
801 /* The MIPS psABI was updated in 2008 with support for PLTs and copy
802    relocs.  There are therefore two types of nonzero SHN_UNDEF functions:
803    PLT entries and traditional MIPS lazy binding stubs.  We mark the former
804    with STO_MIPS_PLT to distinguish them from the latter.  */
805 #define STO_MIPS_PLT		0x8
806 #define ELF_ST_IS_MIPS_PLT(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PLT)
807 #define ELF_ST_SET_MIPS_PLT(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PLT)
808 
809 /* This value is used to mark PIC functions in an object that mixes
810    PIC and non-PIC.  Note that this bit overlaps with STO_MIPS16,
811    although MIPS16 symbols are never considered to be MIPS_PIC.  */
812 #define STO_MIPS_PIC		0x20
813 #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC)
814 #define ELF_ST_SET_MIPS_PIC(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PIC)
815 
816 /* This value is used for a mips16 .text symbol.  */
817 #define STO_MIPS16		0xf0
818 #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16)
819 #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16)
820 
821 /* This value is used for a microMIPS .text symbol.  To distinguish from
822    STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS.  The
823    mask is STO_MIPS_ISA.  */
824 #define STO_MICROMIPS		(2 << 6)
825 #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS)
826 #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS)
827 
828 /* Whether code compression (either of the MIPS16 or the microMIPS ASEs)
829    has been indicated for a .text symbol.  */
830 #define ELF_ST_IS_COMPRESSED(other) \
831   (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other))
832 
833 /* This bit is used on Irix to indicate a symbol whose definition
834    is optional - if, at final link time, it cannot be found, no
835    error message should be produced.  */
836 #define STO_OPTIONAL		(1 << 2)
837 /* A macro to examine the STO_OPTIONAL bit.  */
838 #define ELF_MIPS_IS_OPTIONAL(other)	((other) & STO_OPTIONAL)
839 
840 /* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
841    relocation entry specifies up to three actual relocations, all at
842    the same address.  The first relocation which required a symbol
843    uses the symbol in the r_sym field.  The second relocation which
844    requires a symbol uses the symbol in the r_ssym field.  If all
845    three relocations require a symbol, the third one uses a zero
846    value.  */
847 
848 /* An entry in a 64 bit SHT_REL section.  */
849 
850 typedef struct
851 {
852   /* Address of relocation.  */
853   unsigned char r_offset[8];
854   /* Symbol index.  */
855   unsigned char r_sym[4];
856   /* Special symbol.  */
857   unsigned char r_ssym[1];
858   /* Third relocation.  */
859   unsigned char r_type3[1];
860   /* Second relocation.  */
861   unsigned char r_type2[1];
862   /* First relocation.  */
863   unsigned char r_type[1];
864 } Elf64_Mips_External_Rel;
865 
866 typedef struct
867 {
868   /* Address of relocation.  */
869   bfd_vma r_offset;
870   /* Symbol index.  */
871   unsigned long r_sym;
872   /* Special symbol.  */
873   unsigned char r_ssym;
874   /* Third relocation.  */
875   unsigned char r_type3;
876   /* Second relocation.  */
877   unsigned char r_type2;
878   /* First relocation.  */
879   unsigned char r_type;
880 } Elf64_Mips_Internal_Rel;
881 
882 /* An entry in a 64 bit SHT_RELA section.  */
883 
884 typedef struct
885 {
886   /* Address of relocation.  */
887   unsigned char r_offset[8];
888   /* Symbol index.  */
889   unsigned char r_sym[4];
890   /* Special symbol.  */
891   unsigned char r_ssym[1];
892   /* Third relocation.  */
893   unsigned char r_type3[1];
894   /* Second relocation.  */
895   unsigned char r_type2[1];
896   /* First relocation.  */
897   unsigned char r_type[1];
898   /* Addend.  */
899   unsigned char r_addend[8];
900 } Elf64_Mips_External_Rela;
901 
902 typedef struct
903 {
904   /* Address of relocation.  */
905   bfd_vma r_offset;
906   /* Symbol index.  */
907   unsigned long r_sym;
908   /* Special symbol.  */
909   unsigned char r_ssym;
910   /* Third relocation.  */
911   unsigned char r_type3;
912   /* Second relocation.  */
913   unsigned char r_type2;
914   /* First relocation.  */
915   unsigned char r_type;
916   /* Addend.  */
917   bfd_signed_vma r_addend;
918 } Elf64_Mips_Internal_Rela;
919 
920 /* MIPS ELF 64 relocation info access macros.  */
921 #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff)
922 #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff)
923 #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff)
924 #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff)
925 
926 /* Values found in the r_ssym field of a relocation entry.  */
927 
928 /* No relocation.  */
929 #define RSS_UNDEF	0
930 
931 /* Value of GP.  */
932 #define RSS_GP		1
933 
934 /* Value of GP in object being relocated.  */
935 #define RSS_GP0		2
936 
937 /* Address of location being relocated.  */
938 #define RSS_LOC		3
939 
940 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
941    which starts with this header.  */
942 
943 typedef struct
944 {
945   /* Type of option.  */
946   unsigned char kind[1];
947   /* Size of option descriptor, including header.  */
948   unsigned char size[1];
949   /* Section index of affected section, or 0 for global option.  */
950   unsigned char section[2];
951   /* Information specific to this kind of option.  */
952   unsigned char info[4];
953 } Elf_External_Options;
954 
955 typedef struct
956 {
957   /* Type of option.  */
958   unsigned char kind;
959   /* Size of option descriptor, including header.  */
960   unsigned char size;
961   /* Section index of affected section, or 0 for global option.  */
962   unsigned short section;
963   /* Information specific to this kind of option.  */
964   unsigned long info;
965 } Elf_Internal_Options;
966 
967 /* MIPS ELF option header swapping routines.  */
968 extern void bfd_mips_elf_swap_options_in
969   (bfd *, const Elf_External_Options *, Elf_Internal_Options *);
970 extern void bfd_mips_elf_swap_options_out
971   (bfd *, const Elf_Internal_Options *, Elf_External_Options *);
972 
973 /* Values which may appear in the kind field of an Elf_Options
974    structure.  */
975 
976 /* Undefined.  */
977 #define ODK_NULL	0
978 
979 /* Register usage and GP value.  */
980 #define ODK_REGINFO	1
981 
982 /* Exception processing information.  */
983 #define ODK_EXCEPTIONS	2
984 
985 /* Section padding information.  */
986 #define ODK_PAD		3
987 
988 /* Hardware workarounds performed.  */
989 #define ODK_HWPATCH	4
990 
991 /* Fill value used by the linker.  */
992 #define ODK_FILL	5
993 
994 /* Reserved space for desktop tools.  */
995 #define ODK_TAGS	6
996 
997 /* Hardware workarounds, AND bits when merging.  */
998 #define ODK_HWAND	7
999 
1000 /* Hardware workarounds, OR bits when merging.  */
1001 #define ODK_HWOR	8
1002 
1003 /* GP group to use for text/data sections.  */
1004 #define ODK_GP_GROUP	9
1005 
1006 /* ID information.  */
1007 #define ODK_IDENT	10
1008 
1009 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
1010    structure.  In the 64 bit ABI, it is the following structure.  The
1011    info field of the options header is not used.  */
1012 
1013 typedef struct
1014 {
1015   /* Mask of general purpose registers used.  */
1016   unsigned char ri_gprmask[4];
1017   /* Padding.  */
1018   unsigned char ri_pad[4];
1019   /* Mask of co-processor registers used.  */
1020   unsigned char ri_cprmask[4][4];
1021   /* GP register value for this object file.  */
1022   unsigned char ri_gp_value[8];
1023 } Elf64_External_RegInfo;
1024 
1025 typedef struct
1026 {
1027   /* Mask of general purpose registers used.  */
1028   unsigned long ri_gprmask;
1029   /* Padding.  */
1030   unsigned long ri_pad;
1031   /* Mask of co-processor registers used.  */
1032   unsigned long ri_cprmask[4];
1033   /* GP register value for this object file.  */
1034   bfd_vma ri_gp_value;
1035 } Elf64_Internal_RegInfo;
1036 
1037 typedef struct
1038 {
1039   /* The hash value computed from the name of the corresponding
1040      dynamic symbol.  */
1041   unsigned char ms_hash_value[4];
1042   /* Contains both the dynamic relocation index and the symbol flags
1043      field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1044      to access the individual values.  The dynamic relocation index
1045      identifies the first entry in the .rel.dyn section that
1046      references the dynamic symbol corresponding to this msym entry.
1047      If the index is 0, no dynamic relocations are associated with the
1048      symbol.  The symbol flags field is reserved for future use.  */
1049   unsigned char ms_info[4];
1050 } Elf32_External_Msym;
1051 
1052 typedef struct
1053 {
1054   /* The hash value computed from the name of the corresponding
1055      dynamic symbol.  */
1056   unsigned long ms_hash_value;
1057   /* Contains both the dynamic relocation index and the symbol flags
1058      field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1059      to access the individual values.  The dynamic relocation index
1060      identifies the first entry in the .rel.dyn section that
1061      references the dynamic symbol corresponding to this msym entry.
1062      If the index is 0, no dynamic relocations are associated with the
1063      symbol.  The symbol flags field is reserved for future use.  */
1064   unsigned long ms_info;
1065 } Elf32_Internal_Msym;
1066 
1067 #define ELF32_MS_REL_INDEX(i) ((i) >> 8)
1068 #define ELF32_MS_FLAGS(i)     (i) & 0xff)
1069 #define ELF32_MS_INFO(r, f)   (((r) << 8) + ((f) & 0xff))
1070 
1071 /* MIPS ELF reginfo swapping routines.  */
1072 extern void bfd_mips_elf64_swap_reginfo_in
1073   (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *);
1074 extern void bfd_mips_elf64_swap_reginfo_out
1075   (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *);
1076 
1077 /* Masks for the info work of an ODK_EXCEPTIONS descriptor.  */
1078 #define OEX_FPU_MIN	0x1f	/* FPEs which must be enabled.  */
1079 #define OEX_FPU_MAX	0x1f00	/* FPEs which may be enabled.  */
1080 #define OEX_PAGE0	0x10000	/* Page zero must be mapped.  */
1081 #define OEX_SMM		0x20000	/* Force sequential memory mode.  */
1082 #define OEX_FPDBUG	0x40000	/* Force precise floating-point
1083 				   exceptions (debug mode).  */
1084 #define OEX_DISMISS	0x80000	/* Dismiss invalid address faults.  */
1085 
1086 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX.  */
1087 #define OEX_FPU_INVAL	0x10	/* Invalid operation exception.  */
1088 #define OEX_FPU_DIV0	0x08	/* Division by zero exception.  */
1089 #define OEX_FPU_OFLO	0x04	/* Overflow exception.  */
1090 #define OEX_FPU_UFLO	0x02	/* Underflow exception.  */
1091 #define OEX_FPU_INEX	0x01	/* Inexact exception.  */
1092 
1093 /* Masks for the info word of an ODK_PAD descriptor.  */
1094 #define OPAD_PREFIX	0x01
1095 #define OPAD_POSTFIX	0x02
1096 #define OPAD_SYMBOL	0x04
1097 
1098 /* Masks for the info word of an ODK_HWPATCH descriptor.  */
1099 #define OHW_R4KEOP	0x00000001	/* R4000 end-of-page patch.  */
1100 #define OHW_R8KPFETCH	0x00000002	/* May need R8000 prefetch patch.  */
1101 #define OHW_R5KEOP	0x00000004	/* R5000 end-of-page patch.  */
1102 #define OHW_R5KCVTL	0x00000008	/* R5000 cvt.[ds].l bug
1103 					   (clean == 1).  */
1104 #define OHW_R10KLDL	0x00000010	/* Needs R10K misaligned
1105 					   load patch. */
1106 
1107 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor.  */
1108 #define OGP_GROUP	0x0000ffff	/* GP group number.  */
1109 #define OGP_SELF	0xffff0000	/* Self-contained GP groups.  */
1110 
1111 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor.  */
1112 #define OHWA0_R4KEOP_CHECKED	0x00000001
1113 #define OHWA0_R4KEOP_CLEAN	0x00000002
1114 
1115 
1116 /* Object attribute tags.  */
1117 enum
1118 {
1119   /* 0-3 are generic.  */
1120   Tag_GNU_MIPS_ABI_FP = 4, /* Value 1 for hard-float -mdouble-float, 2
1121 			      for hard-float -msingle-float, 3 for
1122 			      soft-float, 4 for -mips32r2 -mfp64; 0 for
1123 			      not tagged or not using any ABIs affected
1124 			      by the differences.  */
1125 };
1126 
1127 #endif /* _ELF_MIPS_H */
1128