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252b5132 1/* BFD support for handling relocation entries.
7898deda 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
28d39d1a 3 2000, 2001, 2002, 2003, 2004
252b5132
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4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
ec4530b5 7 This file is part of BFD, the Binary File Descriptor library.
252b5132 8
ec4530b5
NC
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
252b5132 13
ec4530b5
NC
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
252b5132 18
ec4530b5
NC
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
252b5132
RH
22
23/*
24SECTION
25 Relocations
26
27 BFD maintains relocations in much the same way it maintains
28 symbols: they are left alone until required, then read in
3f9b03b5 29 en-masse and translated into an internal form. A common
252b5132
RH
30 routine <<bfd_perform_relocation>> acts upon the
31 canonical form to do the fixup.
32
33 Relocations are maintained on a per section basis,
34 while symbols are maintained on a per BFD basis.
35
36 All that a back end has to do to fit the BFD interface is to create
37 a <<struct reloc_cache_entry>> for each relocation
38 in a particular section, and fill in the right bits of the structures.
39
40@menu
41@* typedef arelent::
42@* howto manager::
43@end menu
44
45*/
46
47/* DO compile in the reloc_code name table from libbfd.h. */
48#define _BFD_MAKE_TABLE_bfd_reloc_code_real
49
50#include "bfd.h"
51#include "sysdep.h"
52#include "bfdlink.h"
53#include "libbfd.h"
54/*
55DOCDD
56INODE
57 typedef arelent, howto manager, Relocations, Relocations
58
59SUBSECTION
60 typedef arelent
61
62 This is the structure of a relocation entry:
63
64CODE_FRAGMENT
65.
66.typedef enum bfd_reloc_status
67.{
b5f79c76 68. {* No errors detected. *}
252b5132
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69. bfd_reloc_ok,
70.
b5f79c76 71. {* The relocation was performed, but there was an overflow. *}
252b5132
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72. bfd_reloc_overflow,
73.
b5f79c76 74. {* The address to relocate was not within the section supplied. *}
252b5132
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75. bfd_reloc_outofrange,
76.
b5f79c76 77. {* Used by special functions. *}
252b5132
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78. bfd_reloc_continue,
79.
b5f79c76 80. {* Unsupported relocation size requested. *}
252b5132
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81. bfd_reloc_notsupported,
82.
b5f79c76 83. {* Unused. *}
252b5132
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84. bfd_reloc_other,
85.
b5f79c76 86. {* The symbol to relocate against was undefined. *}
252b5132
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87. bfd_reloc_undefined,
88.
dc810e39
AM
89. {* The relocation was performed, but may not be ok - presently
90. generated only when linking i960 coff files with i960 b.out
91. symbols. If this type is returned, the error_message argument
92. to bfd_perform_relocation will be set. *}
252b5132
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93. bfd_reloc_dangerous
94. }
95. bfd_reloc_status_type;
96.
97.
98.typedef struct reloc_cache_entry
99.{
b5f79c76 100. {* A pointer into the canonical table of pointers. *}
fc0a2244 101. struct bfd_symbol **sym_ptr_ptr;
252b5132 102.
b5f79c76 103. {* offset in section. *}
252b5132
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104. bfd_size_type address;
105.
b5f79c76 106. {* addend for relocation value. *}
252b5132
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107. bfd_vma addend;
108.
b5f79c76 109. {* Pointer to how to perform the required relocation. *}
252b5132
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110. reloc_howto_type *howto;
111.
b5f79c76
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112.}
113.arelent;
114.
252b5132
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115*/
116
117/*
118DESCRIPTION
119
120 Here is a description of each of the fields within an <<arelent>>:
121
122 o <<sym_ptr_ptr>>
123
124 The symbol table pointer points to a pointer to the symbol
6cee3f79
AC
125 associated with the relocation request. It is the pointer
126 into the table returned by the back end's
127 <<canonicalize_symtab>> action. @xref{Symbols}. The symbol is
128 referenced through a pointer to a pointer so that tools like
129 the linker can fix up all the symbols of the same name by
130 modifying only one pointer. The relocation routine looks in
131 the symbol and uses the base of the section the symbol is
132 attached to and the value of the symbol as the initial
133 relocation offset. If the symbol pointer is zero, then the
134 section provided is looked up.
252b5132
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135
136 o <<address>>
137
138 The <<address>> field gives the offset in bytes from the base of
139 the section data which owns the relocation record to the first
140 byte of relocatable information. The actual data relocated
141 will be relative to this point; for example, a relocation
142 type which modifies the bottom two bytes of a four byte word
143 would not touch the first byte pointed to in a big endian
144 world.
145
146 o <<addend>>
147
148 The <<addend>> is a value provided by the back end to be added (!)
149 to the relocation offset. Its interpretation is dependent upon
150 the howto. For example, on the 68k the code:
151
252b5132
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152| char foo[];
153| main()
154| {
155| return foo[0x12345678];
156| }
157
158 Could be compiled into:
159
160| linkw fp,#-4
161| moveb @@#12345678,d0
162| extbl d0
163| unlk fp
164| rts
165
252b5132
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166 This could create a reloc pointing to <<foo>>, but leave the
167 offset in the data, something like:
168
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169|RELOCATION RECORDS FOR [.text]:
170|offset type value
171|00000006 32 _foo
172|
173|00000000 4e56 fffc ; linkw fp,#-4
174|00000004 1039 1234 5678 ; moveb @@#12345678,d0
175|0000000a 49c0 ; extbl d0
176|0000000c 4e5e ; unlk fp
177|0000000e 4e75 ; rts
178
252b5132
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179 Using coff and an 88k, some instructions don't have enough
180 space in them to represent the full address range, and
181 pointers have to be loaded in two parts. So you'd get something like:
182
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183| or.u r13,r0,hi16(_foo+0x12345678)
184| ld.b r2,r13,lo16(_foo+0x12345678)
185| jmp r1
186
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187 This should create two relocs, both pointing to <<_foo>>, and with
188 0x12340000 in their addend field. The data would consist of:
189
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190|RELOCATION RECORDS FOR [.text]:
191|offset type value
192|00000002 HVRT16 _foo+0x12340000
193|00000006 LVRT16 _foo+0x12340000
194|
195|00000000 5da05678 ; or.u r13,r0,0x5678
196|00000004 1c4d5678 ; ld.b r2,r13,0x5678
197|00000008 f400c001 ; jmp r1
198
252b5132
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199 The relocation routine digs out the value from the data, adds
200 it to the addend to get the original offset, and then adds the
201 value of <<_foo>>. Note that all 32 bits have to be kept around
202 somewhere, to cope with carry from bit 15 to bit 16.
203
204 One further example is the sparc and the a.out format. The
205 sparc has a similar problem to the 88k, in that some
206 instructions don't have room for an entire offset, but on the
207 sparc the parts are created in odd sized lumps. The designers of
208 the a.out format chose to not use the data within the section
209 for storing part of the offset; all the offset is kept within
210 the reloc. Anything in the data should be ignored.
211
212| save %sp,-112,%sp
213| sethi %hi(_foo+0x12345678),%g2
214| ldsb [%g2+%lo(_foo+0x12345678)],%i0
215| ret
216| restore
217
218 Both relocs contain a pointer to <<foo>>, and the offsets
219 contain junk.
220
252b5132
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221|RELOCATION RECORDS FOR [.text]:
222|offset type value
223|00000004 HI22 _foo+0x12345678
224|00000008 LO10 _foo+0x12345678
225|
226|00000000 9de3bf90 ; save %sp,-112,%sp
227|00000004 05000000 ; sethi %hi(_foo+0),%g2
228|00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0
229|0000000c 81c7e008 ; ret
230|00000010 81e80000 ; restore
231
252b5132
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232 o <<howto>>
233
234 The <<howto>> field can be imagined as a
235 relocation instruction. It is a pointer to a structure which
236 contains information on what to do with all of the other
237 information in the reloc record and data section. A back end
238 would normally have a relocation instruction set and turn
239 relocations into pointers to the correct structure on input -
240 but it would be possible to create each howto field on demand.
241
242*/
243
244/*
245SUBSUBSECTION
246 <<enum complain_overflow>>
247
248 Indicates what sort of overflow checking should be done when
249 performing a relocation.
250
251CODE_FRAGMENT
252.
253.enum complain_overflow
254.{
b5f79c76 255. {* Do not complain on overflow. *}
252b5132
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256. complain_overflow_dont,
257.
dc810e39 258. {* Complain if the bitfield overflows, whether it is considered
b5f79c76 259. as signed or unsigned. *}
252b5132
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260. complain_overflow_bitfield,
261.
dc810e39 262. {* Complain if the value overflows when considered as signed
b5f79c76 263. number. *}
252b5132
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264. complain_overflow_signed,
265.
dc810e39 266. {* Complain if the value overflows when considered as an
b5f79c76 267. unsigned number. *}
252b5132
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268. complain_overflow_unsigned
269.};
270
271*/
272
273/*
274SUBSUBSECTION
275 <<reloc_howto_type>>
276
277 The <<reloc_howto_type>> is a structure which contains all the
278 information that libbfd needs to know to tie up a back end's data.
279
280CODE_FRAGMENT
fc0a2244 281.struct bfd_symbol; {* Forward declaration. *}
252b5132
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282.
283.struct reloc_howto_struct
284.{
dc810e39
AM
285. {* The type field has mainly a documentary use - the back end can
286. do what it wants with it, though normally the back end's
287. external idea of what a reloc number is stored
288. in this field. For example, a PC relative word relocation
289. in a coff environment has the type 023 - because that's
290. what the outside world calls a R_PCRWORD reloc. *}
252b5132
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291. unsigned int type;
292.
dc810e39
AM
293. {* The value the final relocation is shifted right by. This drops
294. unwanted data from the relocation. *}
252b5132
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295. unsigned int rightshift;
296.
dc810e39
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297. {* The size of the item to be relocated. This is *not* a
298. power-of-two measure. To get the number of bytes operated
299. on by a type of relocation, use bfd_get_reloc_size. *}
252b5132
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300. int size;
301.
dc810e39
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302. {* The number of bits in the item to be relocated. This is used
303. when doing overflow checking. *}
252b5132
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304. unsigned int bitsize;
305.
dc810e39
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306. {* Notes that the relocation is relative to the location in the
307. data section of the addend. The relocation function will
308. subtract from the relocation value the address of the location
309. being relocated. *}
b34976b6 310. bfd_boolean pc_relative;
252b5132 311.
dc810e39
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312. {* The bit position of the reloc value in the destination.
313. The relocated value is left shifted by this amount. *}
252b5132
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314. unsigned int bitpos;
315.
dc810e39
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316. {* What type of overflow error should be checked for when
317. relocating. *}
252b5132
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318. enum complain_overflow complain_on_overflow;
319.
dc810e39
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320. {* If this field is non null, then the supplied function is
321. called rather than the normal function. This allows really
7dee875e 322. strange relocation methods to be accommodated (e.g., i960 callj
dc810e39 323. instructions). *}
252b5132 324. bfd_reloc_status_type (*special_function)
fc0a2244 325. (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
c58b9523 326. bfd *, char **);
252b5132 327.
dc810e39 328. {* The textual name of the relocation type. *}
252b5132
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329. char *name;
330.
dc810e39
AM
331. {* Some formats record a relocation addend in the section contents
332. rather than with the relocation. For ELF formats this is the
333. distinction between USE_REL and USE_RELA (though the code checks
334. for USE_REL == 1/0). The value of this field is TRUE if the
335. addend is recorded with the section contents; when performing a
336. partial link (ld -r) the section contents (the data) will be
337. modified. The value of this field is FALSE if addends are
338. recorded with the relocation (in arelent.addend); when performing
339. a partial link the relocation will be modified.
340. All relocations for all ELF USE_RELA targets should set this field
341. to FALSE (values of TRUE should be looked on with suspicion).
342. However, the converse is not true: not all relocations of all ELF
343. USE_REL targets set this field to TRUE. Why this is so is peculiar
344. to each particular target. For relocs that aren't used in partial
345. links (e.g. GOT stuff) it doesn't matter what this is set to. *}
b34976b6 346. bfd_boolean partial_inplace;
252b5132 347.
7dc77aaa
AM
348. {* src_mask selects the part of the instruction (or data) to be used
349. in the relocation sum. If the target relocations don't have an
350. addend in the reloc, eg. ELF USE_REL, src_mask will normally equal
351. dst_mask to extract the addend from the section contents. If
352. relocations do have an addend in the reloc, eg. ELF USE_RELA, this
353. field should be zero. Non-zero values for ELF USE_RELA targets are
354. bogus as in those cases the value in the dst_mask part of the
355. section contents should be treated as garbage. *}
252b5132
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356. bfd_vma src_mask;
357.
7dc77aaa
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358. {* dst_mask selects which parts of the instruction (or data) are
359. replaced with a relocated value. *}
252b5132
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360. bfd_vma dst_mask;
361.
dc810e39
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362. {* When some formats create PC relative instructions, they leave
363. the value of the pc of the place being relocated in the offset
364. slot of the instruction, so that a PC relative relocation can
365. be made just by adding in an ordinary offset (e.g., sun3 a.out).
366. Some formats leave the displacement part of an instruction
367. empty (e.g., m88k bcs); this flag signals the fact. *}
b34976b6 368. bfd_boolean pcrel_offset;
252b5132 369.};
b5f79c76 370.
252b5132
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371*/
372
373/*
374FUNCTION
375 The HOWTO Macro
376
377DESCRIPTION
378 The HOWTO define is horrible and will go away.
379
dc810e39
AM
380.#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
381. { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC }
252b5132
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382
383DESCRIPTION
384 And will be replaced with the totally magic way. But for the
385 moment, we are compatible, so do it this way.
386
dc810e39
AM
387.#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
388. HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
b34976b6 389. NAME, FALSE, 0, 0, IN)
252b5132 390.
5f771d47
ILT
391
392DESCRIPTION
393 This is used to fill in an empty howto entry in an array.
394
395.#define EMPTY_HOWTO(C) \
b34976b6
AM
396. HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
397. NULL, FALSE, 0, 0, FALSE)
5f771d47
ILT
398.
399
252b5132
RH
400DESCRIPTION
401 Helper routine to turn a symbol into a relocation value.
402
dc810e39
AM
403.#define HOWTO_PREPARE(relocation, symbol) \
404. { \
c58b9523 405. if (symbol != NULL) \
dc810e39
AM
406. { \
407. if (bfd_is_com_section (symbol->section)) \
408. { \
409. relocation = 0; \
410. } \
411. else \
412. { \
413. relocation = symbol->value; \
414. } \
415. } \
416. }
b5f79c76 417.
252b5132
RH
418*/
419
420/*
421FUNCTION
422 bfd_get_reloc_size
423
424SYNOPSIS
425 unsigned int bfd_get_reloc_size (reloc_howto_type *);
426
427DESCRIPTION
428 For a reloc_howto_type that operates on a fixed number of bytes,
429 this returns the number of bytes operated on.
430 */
431
432unsigned int
c58b9523 433bfd_get_reloc_size (reloc_howto_type *howto)
252b5132
RH
434{
435 switch (howto->size)
436 {
437 case 0: return 1;
438 case 1: return 2;
439 case 2: return 4;
440 case 3: return 0;
441 case 4: return 8;
442 case 8: return 16;
443 case -2: return 4;
444 default: abort ();
445 }
446}
447
448/*
449TYPEDEF
450 arelent_chain
451
452DESCRIPTION
453
454 How relocs are tied together in an <<asection>>:
455
dc810e39
AM
456.typedef struct relent_chain
457.{
252b5132 458. arelent relent;
dc810e39 459. struct relent_chain *next;
b5f79c76
NC
460.}
461.arelent_chain;
462.
252b5132
RH
463*/
464
465/* N_ONES produces N one bits, without overflowing machine arithmetic. */
466#define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
467
468/*
469FUNCTION
470 bfd_check_overflow
471
472SYNOPSIS
c58b9523
AM
473 bfd_reloc_status_type bfd_check_overflow
474 (enum complain_overflow how,
475 unsigned int bitsize,
476 unsigned int rightshift,
477 unsigned int addrsize,
478 bfd_vma relocation);
252b5132
RH
479
480DESCRIPTION
481 Perform overflow checking on @var{relocation} which has
482 @var{bitsize} significant bits and will be shifted right by
483 @var{rightshift} bits, on a machine with addresses containing
484 @var{addrsize} significant bits. The result is either of
485 @code{bfd_reloc_ok} or @code{bfd_reloc_overflow}.
486
487*/
488
489bfd_reloc_status_type
c58b9523
AM
490bfd_check_overflow (enum complain_overflow how,
491 unsigned int bitsize,
492 unsigned int rightshift,
493 unsigned int addrsize,
494 bfd_vma relocation)
252b5132
RH
495{
496 bfd_vma fieldmask, addrmask, signmask, ss, a;
497 bfd_reloc_status_type flag = bfd_reloc_ok;
498
499 a = relocation;
500
501 /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not,
502 we'll be permissive: extra bits in the field mask will
503 automatically extend the address mask for purposes of the
504 overflow check. */
505 fieldmask = N_ONES (bitsize);
506 addrmask = N_ONES (addrsize) | fieldmask;
507
508 switch (how)
509 {
510 case complain_overflow_dont:
511 break;
512
513 case complain_overflow_signed:
514 /* If any sign bits are set, all sign bits must be set. That
515 is, A must be a valid negative address after shifting. */
516 a = (a & addrmask) >> rightshift;
517 signmask = ~ (fieldmask >> 1);
518 ss = a & signmask;
519 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
520 flag = bfd_reloc_overflow;
521 break;
522
523 case complain_overflow_unsigned:
524 /* We have an overflow if the address does not fit in the field. */
525 a = (a & addrmask) >> rightshift;
526 if ((a & ~ fieldmask) != 0)
527 flag = bfd_reloc_overflow;
528 break;
529
530 case complain_overflow_bitfield:
531 /* Bitfields are sometimes signed, sometimes unsigned. We
d5afc56e
AM
532 explicitly allow an address wrap too, which means a bitfield
533 of n bits is allowed to store -2**n to 2**n-1. Thus overflow
534 if the value has some, but not all, bits set outside the
535 field. */
252b5132 536 a >>= rightshift;
d5afc56e
AM
537 ss = a & ~ fieldmask;
538 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
539 flag = bfd_reloc_overflow;
252b5132
RH
540 break;
541
542 default:
543 abort ();
544 }
545
546 return flag;
547}
548
549/*
550FUNCTION
551 bfd_perform_relocation
552
553SYNOPSIS
c58b9523
AM
554 bfd_reloc_status_type bfd_perform_relocation
555 (bfd *abfd,
556 arelent *reloc_entry,
557 void *data,
558 asection *input_section,
559 bfd *output_bfd,
560 char **error_message);
252b5132
RH
561
562DESCRIPTION
563 If @var{output_bfd} is supplied to this function, the
564 generated image will be relocatable; the relocations are
565 copied to the output file after they have been changed to
566 reflect the new state of the world. There are two ways of
567 reflecting the results of partial linkage in an output file:
568 by modifying the output data in place, and by modifying the
569 relocation record. Some native formats (e.g., basic a.out and
570 basic coff) have no way of specifying an addend in the
571 relocation type, so the addend has to go in the output data.
572 This is no big deal since in these formats the output data
573 slot will always be big enough for the addend. Complex reloc
574 types with addends were invented to solve just this problem.
575 The @var{error_message} argument is set to an error message if
576 this return @code{bfd_reloc_dangerous}.
577
578*/
579
252b5132 580bfd_reloc_status_type
c58b9523
AM
581bfd_perform_relocation (bfd *abfd,
582 arelent *reloc_entry,
583 void *data,
584 asection *input_section,
585 bfd *output_bfd,
586 char **error_message)
252b5132
RH
587{
588 bfd_vma relocation;
589 bfd_reloc_status_type flag = bfd_reloc_ok;
9a968f43 590 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
252b5132
RH
591 bfd_vma output_base = 0;
592 reloc_howto_type *howto = reloc_entry->howto;
593 asection *reloc_target_output_section;
594 asymbol *symbol;
595
596 symbol = *(reloc_entry->sym_ptr_ptr);
597 if (bfd_is_abs_section (symbol->section)
c58b9523 598 && output_bfd != NULL)
252b5132
RH
599 {
600 reloc_entry->address += input_section->output_offset;
601 return bfd_reloc_ok;
602 }
603
1049f94e 604 /* If we are not producing relocatable output, return an error if
252b5132
RH
605 the symbol is not defined. An undefined weak symbol is
606 considered to have a value of zero (SVR4 ABI, p. 4-27). */
607 if (bfd_is_und_section (symbol->section)
608 && (symbol->flags & BSF_WEAK) == 0
c58b9523 609 && output_bfd == NULL)
252b5132
RH
610 flag = bfd_reloc_undefined;
611
612 /* If there is a function supplied to handle this relocation type,
613 call it. It'll return `bfd_reloc_continue' if further processing
614 can be done. */
615 if (howto->special_function)
616 {
617 bfd_reloc_status_type cont;
618 cont = howto->special_function (abfd, reloc_entry, symbol, data,
619 input_section, output_bfd,
620 error_message);
621 if (cont != bfd_reloc_continue)
622 return cont;
623 }
624
625 /* Is the address of the relocation really within the section? */
07515404 626 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
252b5132
RH
627 return bfd_reloc_outofrange;
628
7dee875e 629 /* Work out which section the relocation is targeted at and the
252b5132
RH
630 initial relocation command value. */
631
632 /* Get symbol value. (Common symbols are special.) */
633 if (bfd_is_com_section (symbol->section))
634 relocation = 0;
635 else
636 relocation = symbol->value;
637
252b5132
RH
638 reloc_target_output_section = symbol->section->output_section;
639
640 /* Convert input-section-relative symbol value to absolute. */
ec4530b5
NC
641 if ((output_bfd && ! howto->partial_inplace)
642 || reloc_target_output_section == NULL)
252b5132
RH
643 output_base = 0;
644 else
645 output_base = reloc_target_output_section->vma;
646
647 relocation += output_base + symbol->section->output_offset;
648
649 /* Add in supplied addend. */
650 relocation += reloc_entry->addend;
651
652 /* Here the variable relocation holds the final address of the
653 symbol we are relocating against, plus any addend. */
654
82e51918 655 if (howto->pc_relative)
252b5132
RH
656 {
657 /* This is a PC relative relocation. We want to set RELOCATION
658 to the distance between the address of the symbol and the
659 location. RELOCATION is already the address of the symbol.
660
661 We start by subtracting the address of the section containing
662 the location.
663
664 If pcrel_offset is set, we must further subtract the position
665 of the location within the section. Some targets arrange for
666 the addend to be the negative of the position of the location
667 within the section; for example, i386-aout does this. For
b34976b6 668 i386-aout, pcrel_offset is FALSE. Some other targets do not
252b5132 669 include the position of the location; for example, m88kbcs,
b34976b6 670 or ELF. For those targets, pcrel_offset is TRUE.
252b5132 671
1049f94e 672 If we are producing relocatable output, then we must ensure
252b5132 673 that this reloc will be correctly computed when the final
b34976b6 674 relocation is done. If pcrel_offset is FALSE we want to wind
252b5132
RH
675 up with the negative of the location within the section,
676 which means we must adjust the existing addend by the change
b34976b6 677 in the location within the section. If pcrel_offset is TRUE
252b5132
RH
678 we do not want to adjust the existing addend at all.
679
680 FIXME: This seems logical to me, but for the case of
1049f94e 681 producing relocatable output it is not what the code
252b5132
RH
682 actually does. I don't want to change it, because it seems
683 far too likely that something will break. */
684
685 relocation -=
686 input_section->output_section->vma + input_section->output_offset;
687
82e51918 688 if (howto->pcrel_offset)
252b5132
RH
689 relocation -= reloc_entry->address;
690 }
691
c58b9523 692 if (output_bfd != NULL)
252b5132 693 {
82e51918 694 if (! howto->partial_inplace)
252b5132
RH
695 {
696 /* This is a partial relocation, and we want to apply the relocation
697 to the reloc entry rather than the raw data. Modify the reloc
698 inplace to reflect what we now know. */
699 reloc_entry->addend = relocation;
700 reloc_entry->address += input_section->output_offset;
701 return flag;
702 }
703 else
704 {
705 /* This is a partial relocation, but inplace, so modify the
706 reloc record a bit.
707
708 If we've relocated with a symbol with a section, change
709 into a ref to the section belonging to the symbol. */
710
711 reloc_entry->address += input_section->output_offset;
712
713 /* WTF?? */
714 if (abfd->xvec->flavour == bfd_target_coff_flavour
252b5132
RH
715 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
716 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
717 {
252b5132
RH
718 /* For m68k-coff, the addend was being subtracted twice during
719 relocation with -r. Removing the line below this comment
720 fixes that problem; see PR 2953.
721
722However, Ian wrote the following, regarding removing the line below,
723which explains why it is still enabled: --djm
724
725If you put a patch like that into BFD you need to check all the COFF
726linkers. I am fairly certain that patch will break coff-i386 (e.g.,
727SCO); see coff_i386_reloc in coff-i386.c where I worked around the
728problem in a different way. There may very well be a reason that the
729code works as it does.
730
731Hmmm. The first obvious point is that bfd_perform_relocation should
732not have any tests that depend upon the flavour. It's seem like
733entirely the wrong place for such a thing. The second obvious point
734is that the current code ignores the reloc addend when producing
1049f94e 735relocatable output for COFF. That's peculiar. In fact, I really
252b5132
RH
736have no idea what the point of the line you want to remove is.
737
738A typical COFF reloc subtracts the old value of the symbol and adds in
739the new value to the location in the object file (if it's a pc
740relative reloc it adds the difference between the symbol value and the
741location). When relocating we need to preserve that property.
742
743BFD handles this by setting the addend to the negative of the old
744value of the symbol. Unfortunately it handles common symbols in a
745non-standard way (it doesn't subtract the old value) but that's a
746different story (we can't change it without losing backward
747compatibility with old object files) (coff-i386 does subtract the old
748value, to be compatible with existing coff-i386 targets, like SCO).
749
1049f94e
AM
750So everything works fine when not producing relocatable output. When
751we are producing relocatable output, logically we should do exactly
752what we do when not producing relocatable output. Therefore, your
252b5132
RH
753patch is correct. In fact, it should probably always just set
754reloc_entry->addend to 0 for all cases, since it is, in fact, going to
755add the value into the object file. This won't hurt the COFF code,
756which doesn't use the addend; I'm not sure what it will do to other
757formats (the thing to check for would be whether any formats both use
758the addend and set partial_inplace).
759
1049f94e 760When I wanted to make coff-i386 produce relocatable output, I ran
252b5132
RH
761into the problem that you are running into: I wanted to remove that
762line. Rather than risk it, I made the coff-i386 relocs use a special
763function; it's coff_i386_reloc in coff-i386.c. The function
764specifically adds the addend field into the object file, knowing that
765bfd_perform_relocation is not going to. If you remove that line, then
766coff-i386.c will wind up adding the addend field in twice. It's
767trivial to fix; it just needs to be done.
768
769The problem with removing the line is just that it may break some
770working code. With BFD it's hard to be sure of anything. The right
771way to deal with this is simply to build and test at least all the
772supported COFF targets. It should be straightforward if time and disk
773space consuming. For each target:
774 1) build the linker
775 2) generate some executable, and link it using -r (I would
776 probably use paranoia.o and link against newlib/libc.a, which
777 for all the supported targets would be available in
778 /usr/cygnus/progressive/H-host/target/lib/libc.a).
779 3) make the change to reloc.c
780 4) rebuild the linker
781 5) repeat step 2
782 6) if the resulting object files are the same, you have at least
783 made it no worse
784 7) if they are different you have to figure out which version is
785 right
786*/
787 relocation -= reloc_entry->addend;
252b5132
RH
788 reloc_entry->addend = 0;
789 }
790 else
791 {
792 reloc_entry->addend = relocation;
793 }
794 }
795 }
796 else
797 {
798 reloc_entry->addend = 0;
799 }
800
801 /* FIXME: This overflow checking is incomplete, because the value
802 might have overflowed before we get here. For a correct check we
803 need to compute the value in a size larger than bitsize, but we
804 can't reasonably do that for a reloc the same size as a host
805 machine word.
806 FIXME: We should also do overflow checking on the result after
807 adding in the value contained in the object file. */
808 if (howto->complain_on_overflow != complain_overflow_dont
809 && flag == bfd_reloc_ok)
810 flag = bfd_check_overflow (howto->complain_on_overflow,
811 howto->bitsize,
812 howto->rightshift,
813 bfd_arch_bits_per_address (abfd),
814 relocation);
815
b5f79c76
NC
816 /* Either we are relocating all the way, or we don't want to apply
817 the relocation to the reloc entry (probably because there isn't
818 any room in the output format to describe addends to relocs). */
252b5132
RH
819
820 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
821 (OSF version 1.3, compiler version 3.11). It miscompiles the
822 following program:
823
824 struct str
825 {
826 unsigned int i0;
827 } s = { 0 };
828
829 int
830 main ()
831 {
832 unsigned long x;
833
834 x = 0x100000000;
835 x <<= (unsigned long) s.i0;
836 if (x == 0)
837 printf ("failed\n");
838 else
839 printf ("succeeded (%lx)\n", x);
840 }
841 */
842
843 relocation >>= (bfd_vma) howto->rightshift;
844
b5f79c76 845 /* Shift everything up to where it's going to be used. */
252b5132
RH
846 relocation <<= (bfd_vma) howto->bitpos;
847
b5f79c76 848 /* Wait for the day when all have the mask in them. */
252b5132
RH
849
850 /* What we do:
851 i instruction to be left alone
852 o offset within instruction
853 r relocation offset to apply
854 S src mask
855 D dst mask
856 N ~dst mask
857 A part 1
858 B part 2
859 R result
860
861 Do this:
88b6bae0
AM
862 (( i i i i i o o o o o from bfd_get<size>
863 and S S S S S) to get the size offset we want
864 + r r r r r r r r r r) to get the final value to place
252b5132
RH
865 and D D D D D to chop to right size
866 -----------------------
88b6bae0 867 = A A A A A
252b5132 868 And this:
88b6bae0
AM
869 ( i i i i i o o o o o from bfd_get<size>
870 and N N N N N ) get instruction
252b5132 871 -----------------------
88b6bae0 872 = B B B B B
252b5132
RH
873
874 And then:
88b6bae0
AM
875 ( B B B B B
876 or A A A A A)
252b5132 877 -----------------------
88b6bae0 878 = R R R R R R R R R R put into bfd_put<size>
252b5132
RH
879 */
880
881#define DOIT(x) \
882 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
883
884 switch (howto->size)
885 {
886 case 0:
887 {
9a968f43 888 char x = bfd_get_8 (abfd, (char *) data + octets);
252b5132 889 DOIT (x);
9a968f43 890 bfd_put_8 (abfd, x, (unsigned char *) data + octets);
252b5132
RH
891 }
892 break;
893
894 case 1:
895 {
9a968f43 896 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
252b5132 897 DOIT (x);
dc810e39 898 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
252b5132
RH
899 }
900 break;
901 case 2:
902 {
9a968f43 903 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
252b5132 904 DOIT (x);
dc810e39 905 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
906 }
907 break;
908 case -2:
909 {
9a968f43 910 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
252b5132
RH
911 relocation = -relocation;
912 DOIT (x);
dc810e39 913 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
914 }
915 break;
916
917 case -1:
918 {
9a968f43 919 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
252b5132
RH
920 relocation = -relocation;
921 DOIT (x);
dc810e39 922 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
923 }
924 break;
925
926 case 3:
927 /* Do nothing */
928 break;
929
930 case 4:
931#ifdef BFD64
932 {
9a968f43 933 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
252b5132 934 DOIT (x);
9a968f43 935 bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
252b5132
RH
936 }
937#else
938 abort ();
939#endif
940 break;
941 default:
942 return bfd_reloc_other;
943 }
944
945 return flag;
946}
947
948/*
949FUNCTION
950 bfd_install_relocation
951
952SYNOPSIS
c58b9523
AM
953 bfd_reloc_status_type bfd_install_relocation
954 (bfd *abfd,
955 arelent *reloc_entry,
956 void *data, bfd_vma data_start,
957 asection *input_section,
958 char **error_message);
252b5132
RH
959
960DESCRIPTION
961 This looks remarkably like <<bfd_perform_relocation>>, except it
962 does not expect that the section contents have been filled in.
963 I.e., it's suitable for use when creating, rather than applying
964 a relocation.
965
966 For now, this function should be considered reserved for the
967 assembler.
252b5132
RH
968*/
969
252b5132 970bfd_reloc_status_type
c58b9523
AM
971bfd_install_relocation (bfd *abfd,
972 arelent *reloc_entry,
973 void *data_start,
974 bfd_vma data_start_offset,
975 asection *input_section,
976 char **error_message)
252b5132
RH
977{
978 bfd_vma relocation;
979 bfd_reloc_status_type flag = bfd_reloc_ok;
9a968f43 980 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
252b5132
RH
981 bfd_vma output_base = 0;
982 reloc_howto_type *howto = reloc_entry->howto;
983 asection *reloc_target_output_section;
984 asymbol *symbol;
985 bfd_byte *data;
986
987 symbol = *(reloc_entry->sym_ptr_ptr);
988 if (bfd_is_abs_section (symbol->section))
989 {
990 reloc_entry->address += input_section->output_offset;
991 return bfd_reloc_ok;
992 }
993
994 /* If there is a function supplied to handle this relocation type,
995 call it. It'll return `bfd_reloc_continue' if further processing
996 can be done. */
997 if (howto->special_function)
998 {
999 bfd_reloc_status_type cont;
88b6bae0 1000
252b5132
RH
1001 /* XXX - The special_function calls haven't been fixed up to deal
1002 with creating new relocations and section contents. */
1003 cont = howto->special_function (abfd, reloc_entry, symbol,
1004 /* XXX - Non-portable! */
1005 ((bfd_byte *) data_start
1006 - data_start_offset),
1007 input_section, abfd, error_message);
1008 if (cont != bfd_reloc_continue)
1009 return cont;
1010 }
1011
1012 /* Is the address of the relocation really within the section? */
07515404 1013 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
252b5132
RH
1014 return bfd_reloc_outofrange;
1015
7dee875e 1016 /* Work out which section the relocation is targeted at and the
252b5132
RH
1017 initial relocation command value. */
1018
1019 /* Get symbol value. (Common symbols are special.) */
1020 if (bfd_is_com_section (symbol->section))
1021 relocation = 0;
1022 else
1023 relocation = symbol->value;
1024
1025 reloc_target_output_section = symbol->section->output_section;
1026
1027 /* Convert input-section-relative symbol value to absolute. */
82e51918 1028 if (! howto->partial_inplace)
252b5132
RH
1029 output_base = 0;
1030 else
1031 output_base = reloc_target_output_section->vma;
1032
1033 relocation += output_base + symbol->section->output_offset;
1034
1035 /* Add in supplied addend. */
1036 relocation += reloc_entry->addend;
1037
1038 /* Here the variable relocation holds the final address of the
1039 symbol we are relocating against, plus any addend. */
1040
82e51918 1041 if (howto->pc_relative)
252b5132
RH
1042 {
1043 /* This is a PC relative relocation. We want to set RELOCATION
1044 to the distance between the address of the symbol and the
1045 location. RELOCATION is already the address of the symbol.
1046
1047 We start by subtracting the address of the section containing
1048 the location.
1049
1050 If pcrel_offset is set, we must further subtract the position
1051 of the location within the section. Some targets arrange for
1052 the addend to be the negative of the position of the location
1053 within the section; for example, i386-aout does this. For
b34976b6 1054 i386-aout, pcrel_offset is FALSE. Some other targets do not
252b5132 1055 include the position of the location; for example, m88kbcs,
b34976b6 1056 or ELF. For those targets, pcrel_offset is TRUE.
252b5132 1057
1049f94e 1058 If we are producing relocatable output, then we must ensure
252b5132 1059 that this reloc will be correctly computed when the final
b34976b6 1060 relocation is done. If pcrel_offset is FALSE we want to wind
252b5132
RH
1061 up with the negative of the location within the section,
1062 which means we must adjust the existing addend by the change
b34976b6 1063 in the location within the section. If pcrel_offset is TRUE
252b5132
RH
1064 we do not want to adjust the existing addend at all.
1065
1066 FIXME: This seems logical to me, but for the case of
1049f94e 1067 producing relocatable output it is not what the code
252b5132
RH
1068 actually does. I don't want to change it, because it seems
1069 far too likely that something will break. */
1070
1071 relocation -=
1072 input_section->output_section->vma + input_section->output_offset;
1073
82e51918 1074 if (howto->pcrel_offset && howto->partial_inplace)
252b5132
RH
1075 relocation -= reloc_entry->address;
1076 }
1077
82e51918 1078 if (! howto->partial_inplace)
252b5132
RH
1079 {
1080 /* This is a partial relocation, and we want to apply the relocation
1081 to the reloc entry rather than the raw data. Modify the reloc
1082 inplace to reflect what we now know. */
1083 reloc_entry->addend = relocation;
1084 reloc_entry->address += input_section->output_offset;
1085 return flag;
1086 }
1087 else
1088 {
1089 /* This is a partial relocation, but inplace, so modify the
1090 reloc record a bit.
1091
1092 If we've relocated with a symbol with a section, change
1093 into a ref to the section belonging to the symbol. */
252b5132
RH
1094 reloc_entry->address += input_section->output_offset;
1095
1096 /* WTF?? */
1097 if (abfd->xvec->flavour == bfd_target_coff_flavour
252b5132
RH
1098 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1099 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1100 {
0e71e495
BE
1101
1102 /* For m68k-coff, the addend was being subtracted twice during
1103 relocation with -r. Removing the line below this comment
1104 fixes that problem; see PR 2953.
252b5132
RH
1105
1106However, Ian wrote the following, regarding removing the line below,
1107which explains why it is still enabled: --djm
1108
1109If you put a patch like that into BFD you need to check all the COFF
1110linkers. I am fairly certain that patch will break coff-i386 (e.g.,
1111SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1112problem in a different way. There may very well be a reason that the
1113code works as it does.
1114
1115Hmmm. The first obvious point is that bfd_install_relocation should
1116not have any tests that depend upon the flavour. It's seem like
1117entirely the wrong place for such a thing. The second obvious point
1118is that the current code ignores the reloc addend when producing
1049f94e 1119relocatable output for COFF. That's peculiar. In fact, I really
252b5132
RH
1120have no idea what the point of the line you want to remove is.
1121
1122A typical COFF reloc subtracts the old value of the symbol and adds in
1123the new value to the location in the object file (if it's a pc
1124relative reloc it adds the difference between the symbol value and the
1125location). When relocating we need to preserve that property.
1126
1127BFD handles this by setting the addend to the negative of the old
1128value of the symbol. Unfortunately it handles common symbols in a
1129non-standard way (it doesn't subtract the old value) but that's a
1130different story (we can't change it without losing backward
1131compatibility with old object files) (coff-i386 does subtract the old
1132value, to be compatible with existing coff-i386 targets, like SCO).
1133
1049f94e
AM
1134So everything works fine when not producing relocatable output. When
1135we are producing relocatable output, logically we should do exactly
1136what we do when not producing relocatable output. Therefore, your
252b5132
RH
1137patch is correct. In fact, it should probably always just set
1138reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1139add the value into the object file. This won't hurt the COFF code,
1140which doesn't use the addend; I'm not sure what it will do to other
1141formats (the thing to check for would be whether any formats both use
1142the addend and set partial_inplace).
1143
1049f94e 1144When I wanted to make coff-i386 produce relocatable output, I ran
252b5132
RH
1145into the problem that you are running into: I wanted to remove that
1146line. Rather than risk it, I made the coff-i386 relocs use a special
1147function; it's coff_i386_reloc in coff-i386.c. The function
1148specifically adds the addend field into the object file, knowing that
1149bfd_install_relocation is not going to. If you remove that line, then
1150coff-i386.c will wind up adding the addend field in twice. It's
1151trivial to fix; it just needs to be done.
1152
1153The problem with removing the line is just that it may break some
1154working code. With BFD it's hard to be sure of anything. The right
1155way to deal with this is simply to build and test at least all the
1156supported COFF targets. It should be straightforward if time and disk
1157space consuming. For each target:
1158 1) build the linker
1159 2) generate some executable, and link it using -r (I would
1160 probably use paranoia.o and link against newlib/libc.a, which
1161 for all the supported targets would be available in
1162 /usr/cygnus/progressive/H-host/target/lib/libc.a).
1163 3) make the change to reloc.c
1164 4) rebuild the linker
1165 5) repeat step 2
1166 6) if the resulting object files are the same, you have at least
1167 made it no worse
1168 7) if they are different you have to figure out which version is
b5f79c76 1169 right. */
252b5132 1170 relocation -= reloc_entry->addend;
252b5132
RH
1171 reloc_entry->addend = 0;
1172 }
1173 else
1174 {
1175 reloc_entry->addend = relocation;
1176 }
1177 }
1178
1179 /* FIXME: This overflow checking is incomplete, because the value
1180 might have overflowed before we get here. For a correct check we
1181 need to compute the value in a size larger than bitsize, but we
1182 can't reasonably do that for a reloc the same size as a host
1183 machine word.
1184 FIXME: We should also do overflow checking on the result after
1185 adding in the value contained in the object file. */
1186 if (howto->complain_on_overflow != complain_overflow_dont)
1187 flag = bfd_check_overflow (howto->complain_on_overflow,
1188 howto->bitsize,
1189 howto->rightshift,
1190 bfd_arch_bits_per_address (abfd),
1191 relocation);
1192
b5f79c76
NC
1193 /* Either we are relocating all the way, or we don't want to apply
1194 the relocation to the reloc entry (probably because there isn't
1195 any room in the output format to describe addends to relocs). */
252b5132
RH
1196
1197 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1198 (OSF version 1.3, compiler version 3.11). It miscompiles the
1199 following program:
1200
1201 struct str
1202 {
1203 unsigned int i0;
1204 } s = { 0 };
1205
1206 int
1207 main ()
1208 {
1209 unsigned long x;
1210
1211 x = 0x100000000;
1212 x <<= (unsigned long) s.i0;
1213 if (x == 0)
1214 printf ("failed\n");
1215 else
1216 printf ("succeeded (%lx)\n", x);
1217 }
1218 */
1219
1220 relocation >>= (bfd_vma) howto->rightshift;
1221
b5f79c76 1222 /* Shift everything up to where it's going to be used. */
252b5132
RH
1223 relocation <<= (bfd_vma) howto->bitpos;
1224
b5f79c76 1225 /* Wait for the day when all have the mask in them. */
252b5132
RH
1226
1227 /* What we do:
1228 i instruction to be left alone
1229 o offset within instruction
1230 r relocation offset to apply
1231 S src mask
1232 D dst mask
1233 N ~dst mask
1234 A part 1
1235 B part 2
1236 R result
1237
1238 Do this:
88b6bae0
AM
1239 (( i i i i i o o o o o from bfd_get<size>
1240 and S S S S S) to get the size offset we want
1241 + r r r r r r r r r r) to get the final value to place
252b5132
RH
1242 and D D D D D to chop to right size
1243 -----------------------
88b6bae0 1244 = A A A A A
252b5132 1245 And this:
88b6bae0
AM
1246 ( i i i i i o o o o o from bfd_get<size>
1247 and N N N N N ) get instruction
252b5132 1248 -----------------------
88b6bae0 1249 = B B B B B
252b5132
RH
1250
1251 And then:
88b6bae0
AM
1252 ( B B B B B
1253 or A A A A A)
252b5132 1254 -----------------------
88b6bae0 1255 = R R R R R R R R R R put into bfd_put<size>
252b5132
RH
1256 */
1257
1258#define DOIT(x) \
1259 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
1260
9a968f43 1261 data = (bfd_byte *) data_start + (octets - data_start_offset);
252b5132
RH
1262
1263 switch (howto->size)
1264 {
1265 case 0:
1266 {
c58b9523 1267 char x = bfd_get_8 (abfd, data);
252b5132 1268 DOIT (x);
c58b9523 1269 bfd_put_8 (abfd, x, data);
252b5132
RH
1270 }
1271 break;
1272
1273 case 1:
1274 {
c58b9523 1275 short x = bfd_get_16 (abfd, data);
252b5132 1276 DOIT (x);
c58b9523 1277 bfd_put_16 (abfd, (bfd_vma) x, data);
252b5132
RH
1278 }
1279 break;
1280 case 2:
1281 {
c58b9523 1282 long x = bfd_get_32 (abfd, data);
252b5132 1283 DOIT (x);
c58b9523 1284 bfd_put_32 (abfd, (bfd_vma) x, data);
252b5132
RH
1285 }
1286 break;
1287 case -2:
1288 {
c58b9523 1289 long x = bfd_get_32 (abfd, data);
252b5132
RH
1290 relocation = -relocation;
1291 DOIT (x);
c58b9523 1292 bfd_put_32 (abfd, (bfd_vma) x, data);
252b5132
RH
1293 }
1294 break;
1295
1296 case 3:
1297 /* Do nothing */
1298 break;
1299
1300 case 4:
1301 {
c58b9523 1302 bfd_vma x = bfd_get_64 (abfd, data);
252b5132 1303 DOIT (x);
c58b9523 1304 bfd_put_64 (abfd, x, data);
252b5132
RH
1305 }
1306 break;
1307 default:
1308 return bfd_reloc_other;
1309 }
1310
1311 return flag;
1312}
1313
1314/* This relocation routine is used by some of the backend linkers.
1315 They do not construct asymbol or arelent structures, so there is no
1316 reason for them to use bfd_perform_relocation. Also,
1317 bfd_perform_relocation is so hacked up it is easier to write a new
1318 function than to try to deal with it.
1319
1320 This routine does a final relocation. Whether it is useful for a
1049f94e 1321 relocatable link depends upon how the object format defines
252b5132
RH
1322 relocations.
1323
1324 FIXME: This routine ignores any special_function in the HOWTO,
1325 since the existing special_function values have been written for
1326 bfd_perform_relocation.
1327
1328 HOWTO is the reloc howto information.
1329 INPUT_BFD is the BFD which the reloc applies to.
1330 INPUT_SECTION is the section which the reloc applies to.
1331 CONTENTS is the contents of the section.
1332 ADDRESS is the address of the reloc within INPUT_SECTION.
1333 VALUE is the value of the symbol the reloc refers to.
1334 ADDEND is the addend of the reloc. */
1335
1336bfd_reloc_status_type
c58b9523
AM
1337_bfd_final_link_relocate (reloc_howto_type *howto,
1338 bfd *input_bfd,
1339 asection *input_section,
1340 bfd_byte *contents,
1341 bfd_vma address,
1342 bfd_vma value,
1343 bfd_vma addend)
252b5132
RH
1344{
1345 bfd_vma relocation;
1346
1347 /* Sanity check the address. */
07515404 1348 if (address > bfd_get_section_limit (input_bfd, input_section))
252b5132
RH
1349 return bfd_reloc_outofrange;
1350
1351 /* This function assumes that we are dealing with a basic relocation
1352 against a symbol. We want to compute the value of the symbol to
1353 relocate to. This is just VALUE, the value of the symbol, plus
1354 ADDEND, any addend associated with the reloc. */
1355 relocation = value + addend;
1356
1357 /* If the relocation is PC relative, we want to set RELOCATION to
1358 the distance between the symbol (currently in RELOCATION) and the
1359 location we are relocating. Some targets (e.g., i386-aout)
1360 arrange for the contents of the section to be the negative of the
1361 offset of the location within the section; for such targets
b34976b6 1362 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
252b5132 1363 simply leave the contents of the section as zero; for such
b34976b6 1364 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
252b5132
RH
1365 need to subtract out the offset of the location within the
1366 section (which is just ADDRESS). */
1367 if (howto->pc_relative)
1368 {
1369 relocation -= (input_section->output_section->vma
1370 + input_section->output_offset);
1371 if (howto->pcrel_offset)
1372 relocation -= address;
1373 }
1374
1375 return _bfd_relocate_contents (howto, input_bfd, relocation,
1376 contents + address);
1377}
1378
1379/* Relocate a given location using a given value and howto. */
1380
1381bfd_reloc_status_type
c58b9523
AM
1382_bfd_relocate_contents (reloc_howto_type *howto,
1383 bfd *input_bfd,
1384 bfd_vma relocation,
1385 bfd_byte *location)
252b5132
RH
1386{
1387 int size;
7442e600 1388 bfd_vma x = 0;
d5afc56e 1389 bfd_reloc_status_type flag;
252b5132
RH
1390 unsigned int rightshift = howto->rightshift;
1391 unsigned int bitpos = howto->bitpos;
1392
1393 /* If the size is negative, negate RELOCATION. This isn't very
1394 general. */
1395 if (howto->size < 0)
1396 relocation = -relocation;
1397
1398 /* Get the value we are going to relocate. */
1399 size = bfd_get_reloc_size (howto);
1400 switch (size)
1401 {
1402 default:
1403 case 0:
1404 abort ();
1405 case 1:
1406 x = bfd_get_8 (input_bfd, location);
1407 break;
1408 case 2:
1409 x = bfd_get_16 (input_bfd, location);
1410 break;
1411 case 4:
1412 x = bfd_get_32 (input_bfd, location);
1413 break;
1414 case 8:
1415#ifdef BFD64
1416 x = bfd_get_64 (input_bfd, location);
1417#else
1418 abort ();
1419#endif
1420 break;
1421 }
1422
1423 /* Check for overflow. FIXME: We may drop bits during the addition
1424 which we don't check for. We must either check at every single
1425 operation, which would be tedious, or we must do the computations
1426 in a type larger than bfd_vma, which would be inefficient. */
d5afc56e 1427 flag = bfd_reloc_ok;
252b5132
RH
1428 if (howto->complain_on_overflow != complain_overflow_dont)
1429 {
1430 bfd_vma addrmask, fieldmask, signmask, ss;
1431 bfd_vma a, b, sum;
1432
1433 /* Get the values to be added together. For signed and unsigned
1434 relocations, we assume that all values should be truncated to
1435 the size of an address. For bitfields, all the bits matter.
1436 See also bfd_check_overflow. */
1437 fieldmask = N_ONES (howto->bitsize);
1438 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1439 a = relocation;
1440 b = x & howto->src_mask;
1441
1442 switch (howto->complain_on_overflow)
1443 {
1444 case complain_overflow_signed:
1445 a = (a & addrmask) >> rightshift;
1446
1447 /* If any sign bits are set, all sign bits must be set.
1448 That is, A must be a valid negative address after
1449 shifting. */
1450 signmask = ~ (fieldmask >> 1);
1451 ss = a & signmask;
1452 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
d5afc56e 1453 flag = bfd_reloc_overflow;
252b5132
RH
1454
1455 /* We only need this next bit of code if the sign bit of B
1456 is below the sign bit of A. This would only happen if
1457 SRC_MASK had fewer bits than BITSIZE. Note that if
1458 SRC_MASK has more bits than BITSIZE, we can get into
1459 trouble; we would need to verify that B is in range, as
1460 we do for A above. */
1461 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
8a4ac871
AM
1462
1463 /* Set all the bits above the sign bit. */
1464 b = (b ^ signmask) - signmask;
252b5132
RH
1465
1466 b = (b & addrmask) >> bitpos;
1467
1468 /* Now we can do the addition. */
1469 sum = a + b;
1470
1471 /* See if the result has the correct sign. Bits above the
1472 sign bit are junk now; ignore them. If the sum is
1473 positive, make sure we did not have all negative inputs;
1474 if the sum is negative, make sure we did not have all
1475 positive inputs. The test below looks only at the sign
1476 bits, and it really just
1477 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1478 */
1479 signmask = (fieldmask >> 1) + 1;
1480 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
d5afc56e 1481 flag = bfd_reloc_overflow;
252b5132
RH
1482
1483 break;
1484
1485 case complain_overflow_unsigned:
1486 /* Checking for an unsigned overflow is relatively easy:
1487 trim the addresses and add, and trim the result as well.
1488 Overflow is normally indicated when the result does not
1489 fit in the field. However, we also need to consider the
1490 case when, e.g., fieldmask is 0x7fffffff or smaller, an
1491 input is 0x80000000, and bfd_vma is only 32 bits; then we
1492 will get sum == 0, but there is an overflow, since the
1493 inputs did not fit in the field. Instead of doing a
1494 separate test, we can check for this by or-ing in the
1495 operands when testing for the sum overflowing its final
1496 field. */
1497 a = (a & addrmask) >> rightshift;
1498 b = (b & addrmask) >> bitpos;
1499 sum = (a + b) & addrmask;
1500 if ((a | b | sum) & ~ fieldmask)
d5afc56e 1501 flag = bfd_reloc_overflow;
252b5132
RH
1502
1503 break;
1504
1505 case complain_overflow_bitfield:
d5afc56e 1506 /* Much like the signed check, but for a field one bit
8a4ac871 1507 wider, and no trimming inputs with addrmask. We allow a
d5afc56e
AM
1508 bitfield to represent numbers in the range -2**n to
1509 2**n-1, where n is the number of bits in the field.
1510 Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1511 overflow, which is exactly what we want. */
252b5132 1512 a >>= rightshift;
252b5132 1513
d5afc56e
AM
1514 signmask = ~ fieldmask;
1515 ss = a & signmask;
1516 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1517 flag = bfd_reloc_overflow;
252b5132 1518
d5afc56e 1519 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
8a4ac871 1520 b = (b ^ signmask) - signmask;
252b5132 1521
d5afc56e 1522 b >>= bitpos;
44257b8b 1523
252b5132 1524 sum = a + b;
d5afc56e 1525
8a4ac871
AM
1526 /* We mask with addrmask here to explicitly allow an address
1527 wrap-around. The Linux kernel relies on it, and it is
1528 the only way to write assembler code which can run when
1529 loaded at a location 0x80000000 away from the location at
1530 which it is linked. */
d5afc56e 1531 signmask = fieldmask + 1;
8a4ac871 1532 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
d5afc56e 1533 flag = bfd_reloc_overflow;
252b5132
RH
1534
1535 break;
1536
1537 default:
1538 abort ();
1539 }
1540 }
1541
1542 /* Put RELOCATION in the right bits. */
1543 relocation >>= (bfd_vma) rightshift;
1544 relocation <<= (bfd_vma) bitpos;
1545
1546 /* Add RELOCATION to the right bits of X. */
1547 x = ((x & ~howto->dst_mask)
1548 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1549
1550 /* Put the relocated value back in the object file. */
1551 switch (size)
1552 {
1553 default:
1554 case 0:
1555 abort ();
1556 case 1:
1557 bfd_put_8 (input_bfd, x, location);
1558 break;
1559 case 2:
1560 bfd_put_16 (input_bfd, x, location);
1561 break;
1562 case 4:
1563 bfd_put_32 (input_bfd, x, location);
1564 break;
1565 case 8:
1566#ifdef BFD64
1567 bfd_put_64 (input_bfd, x, location);
1568#else
1569 abort ();
1570#endif
1571 break;
1572 }
1573
d5afc56e 1574 return flag;
252b5132
RH
1575}
1576
1577/*
1578DOCDD
1579INODE
1580 howto manager, , typedef arelent, Relocations
1581
1582SECTION
1583 The howto manager
1584
1585 When an application wants to create a relocation, but doesn't
1586 know what the target machine might call it, it can find out by
1587 using this bit of code.
1588
1589*/
1590
1591/*
1592TYPEDEF
1593 bfd_reloc_code_type
1594
1595DESCRIPTION
1596 The insides of a reloc code. The idea is that, eventually, there
1597 will be one enumerator for every type of relocation we ever do.
1598 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1599 return a howto pointer.
1600
1601 This does mean that the application must determine the correct
1602 enumerator value; you can't get a howto pointer from a random set
1603 of attributes.
1604
1605SENUM
1606 bfd_reloc_code_real
1607
1608ENUM
1609 BFD_RELOC_64
1610ENUMX
1611 BFD_RELOC_32
1612ENUMX
1613 BFD_RELOC_26
1614ENUMX
1615 BFD_RELOC_24
1616ENUMX
1617 BFD_RELOC_16
1618ENUMX
1619 BFD_RELOC_14
1620ENUMX
1621 BFD_RELOC_8
1622ENUMDOC
1623 Basic absolute relocations of N bits.
1624
1625ENUM
1626 BFD_RELOC_64_PCREL
1627ENUMX
1628 BFD_RELOC_32_PCREL
1629ENUMX
1630 BFD_RELOC_24_PCREL
1631ENUMX
1632 BFD_RELOC_16_PCREL
1633ENUMX
1634 BFD_RELOC_12_PCREL
1635ENUMX
1636 BFD_RELOC_8_PCREL
1637ENUMDOC
1638 PC-relative relocations. Sometimes these are relative to the address
1639of the relocation itself; sometimes they are relative to the start of
1640the section containing the relocation. It depends on the specific target.
1641
1642The 24-bit relocation is used in some Intel 960 configurations.
1643
6482c264
NC
1644ENUM
1645 BFD_RELOC_32_SECREL
1646ENUMDOC
1647 Section relative relocations. Some targets need this for DWARF2.
1648
252b5132
RH
1649ENUM
1650 BFD_RELOC_32_GOT_PCREL
1651ENUMX
1652 BFD_RELOC_16_GOT_PCREL
1653ENUMX
1654 BFD_RELOC_8_GOT_PCREL
1655ENUMX
1656 BFD_RELOC_32_GOTOFF
1657ENUMX
1658 BFD_RELOC_16_GOTOFF
1659ENUMX
1660 BFD_RELOC_LO16_GOTOFF
1661ENUMX
1662 BFD_RELOC_HI16_GOTOFF
1663ENUMX
1664 BFD_RELOC_HI16_S_GOTOFF
1665ENUMX
1666 BFD_RELOC_8_GOTOFF
5bd4f169
AM
1667ENUMX
1668 BFD_RELOC_64_PLT_PCREL
252b5132
RH
1669ENUMX
1670 BFD_RELOC_32_PLT_PCREL
1671ENUMX
1672 BFD_RELOC_24_PLT_PCREL
1673ENUMX
1674 BFD_RELOC_16_PLT_PCREL
1675ENUMX
1676 BFD_RELOC_8_PLT_PCREL
5bd4f169
AM
1677ENUMX
1678 BFD_RELOC_64_PLTOFF
252b5132
RH
1679ENUMX
1680 BFD_RELOC_32_PLTOFF
1681ENUMX
1682 BFD_RELOC_16_PLTOFF
1683ENUMX
1684 BFD_RELOC_LO16_PLTOFF
1685ENUMX
1686 BFD_RELOC_HI16_PLTOFF
1687ENUMX
1688 BFD_RELOC_HI16_S_PLTOFF
1689ENUMX
1690 BFD_RELOC_8_PLTOFF
1691ENUMDOC
1692 For ELF.
1693
1694ENUM
1695 BFD_RELOC_68K_GLOB_DAT
1696ENUMX
1697 BFD_RELOC_68K_JMP_SLOT
1698ENUMX
1699 BFD_RELOC_68K_RELATIVE
1700ENUMDOC
1701 Relocations used by 68K ELF.
1702
1703ENUM
1704 BFD_RELOC_32_BASEREL
1705ENUMX
1706 BFD_RELOC_16_BASEREL
1707ENUMX
1708 BFD_RELOC_LO16_BASEREL
1709ENUMX
1710 BFD_RELOC_HI16_BASEREL
1711ENUMX
1712 BFD_RELOC_HI16_S_BASEREL
1713ENUMX
1714 BFD_RELOC_8_BASEREL
1715ENUMX
1716 BFD_RELOC_RVA
1717ENUMDOC
1718 Linkage-table relative.
1719
1720ENUM
1721 BFD_RELOC_8_FFnn
1722ENUMDOC
1723 Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1724
1725ENUM
1726 BFD_RELOC_32_PCREL_S2
1727ENUMX
1728 BFD_RELOC_16_PCREL_S2
1729ENUMX
1730 BFD_RELOC_23_PCREL_S2
1731ENUMDOC
1732 These PC-relative relocations are stored as word displacements --
1733i.e., byte displacements shifted right two bits. The 30-bit word
1734displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1735SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1736signed 16-bit displacement is used on the MIPS, and the 23-bit
1737displacement is used on the Alpha.
1738
1739ENUM
1740 BFD_RELOC_HI22
1741ENUMX
1742 BFD_RELOC_LO10
1743ENUMDOC
1744 High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1745the target word. These are used on the SPARC.
1746
1747ENUM
1748 BFD_RELOC_GPREL16
1749ENUMX
1750 BFD_RELOC_GPREL32
1751ENUMDOC
1752 For systems that allocate a Global Pointer register, these are
1753displacements off that register. These relocation types are
1754handled specially, because the value the register will have is
1755decided relatively late.
1756
252b5132
RH
1757ENUM
1758 BFD_RELOC_I960_CALLJ
1759ENUMDOC
1760 Reloc types used for i960/b.out.
1761
1762ENUM
1763 BFD_RELOC_NONE
1764ENUMX
1765 BFD_RELOC_SPARC_WDISP22
1766ENUMX
1767 BFD_RELOC_SPARC22
1768ENUMX
1769 BFD_RELOC_SPARC13
1770ENUMX
1771 BFD_RELOC_SPARC_GOT10
1772ENUMX
1773 BFD_RELOC_SPARC_GOT13
1774ENUMX
1775 BFD_RELOC_SPARC_GOT22
1776ENUMX
1777 BFD_RELOC_SPARC_PC10
1778ENUMX
1779 BFD_RELOC_SPARC_PC22
1780ENUMX
1781 BFD_RELOC_SPARC_WPLT30
1782ENUMX
1783 BFD_RELOC_SPARC_COPY
1784ENUMX
1785 BFD_RELOC_SPARC_GLOB_DAT
1786ENUMX
1787 BFD_RELOC_SPARC_JMP_SLOT
1788ENUMX
1789 BFD_RELOC_SPARC_RELATIVE
0f2712ed
NC
1790ENUMX
1791 BFD_RELOC_SPARC_UA16
252b5132
RH
1792ENUMX
1793 BFD_RELOC_SPARC_UA32
0f2712ed
NC
1794ENUMX
1795 BFD_RELOC_SPARC_UA64
252b5132
RH
1796ENUMDOC
1797 SPARC ELF relocations. There is probably some overlap with other
1798 relocation types already defined.
1799
1800ENUM
1801 BFD_RELOC_SPARC_BASE13
1802ENUMX
1803 BFD_RELOC_SPARC_BASE22
1804ENUMDOC
1805 I think these are specific to SPARC a.out (e.g., Sun 4).
1806
1807ENUMEQ
1808 BFD_RELOC_SPARC_64
1809 BFD_RELOC_64
1810ENUMX
1811 BFD_RELOC_SPARC_10
1812ENUMX
1813 BFD_RELOC_SPARC_11
1814ENUMX
1815 BFD_RELOC_SPARC_OLO10
1816ENUMX
1817 BFD_RELOC_SPARC_HH22
1818ENUMX
1819 BFD_RELOC_SPARC_HM10
1820ENUMX
1821 BFD_RELOC_SPARC_LM22
1822ENUMX
1823 BFD_RELOC_SPARC_PC_HH22
1824ENUMX
1825 BFD_RELOC_SPARC_PC_HM10
1826ENUMX
1827 BFD_RELOC_SPARC_PC_LM22
1828ENUMX
1829 BFD_RELOC_SPARC_WDISP16
1830ENUMX
1831 BFD_RELOC_SPARC_WDISP19
1832ENUMX
1833 BFD_RELOC_SPARC_7
1834ENUMX
1835 BFD_RELOC_SPARC_6
1836ENUMX
1837 BFD_RELOC_SPARC_5
1838ENUMEQX
1839 BFD_RELOC_SPARC_DISP64
1840 BFD_RELOC_64_PCREL
bd5e6e7e
JJ
1841ENUMX
1842 BFD_RELOC_SPARC_PLT32
252b5132
RH
1843ENUMX
1844 BFD_RELOC_SPARC_PLT64
1845ENUMX
1846 BFD_RELOC_SPARC_HIX22
1847ENUMX
1848 BFD_RELOC_SPARC_LOX10
1849ENUMX
1850 BFD_RELOC_SPARC_H44
1851ENUMX
1852 BFD_RELOC_SPARC_M44
1853ENUMX
1854 BFD_RELOC_SPARC_L44
1855ENUMX
1856 BFD_RELOC_SPARC_REGISTER
1857ENUMDOC
1858 SPARC64 relocations
1859
1860ENUM
1861 BFD_RELOC_SPARC_REV32
1862ENUMDOC
1863 SPARC little endian relocation
b9734f35
JJ
1864ENUM
1865 BFD_RELOC_SPARC_TLS_GD_HI22
1866ENUMX
1867 BFD_RELOC_SPARC_TLS_GD_LO10
1868ENUMX
1869 BFD_RELOC_SPARC_TLS_GD_ADD
1870ENUMX
1871 BFD_RELOC_SPARC_TLS_GD_CALL
1872ENUMX
1873 BFD_RELOC_SPARC_TLS_LDM_HI22
1874ENUMX
1875 BFD_RELOC_SPARC_TLS_LDM_LO10
1876ENUMX
1877 BFD_RELOC_SPARC_TLS_LDM_ADD
1878ENUMX
1879 BFD_RELOC_SPARC_TLS_LDM_CALL
1880ENUMX
1881 BFD_RELOC_SPARC_TLS_LDO_HIX22
1882ENUMX
1883 BFD_RELOC_SPARC_TLS_LDO_LOX10
1884ENUMX
1885 BFD_RELOC_SPARC_TLS_LDO_ADD
1886ENUMX
1887 BFD_RELOC_SPARC_TLS_IE_HI22
1888ENUMX
1889 BFD_RELOC_SPARC_TLS_IE_LO10
1890ENUMX
1891 BFD_RELOC_SPARC_TLS_IE_LD
1892ENUMX
1893 BFD_RELOC_SPARC_TLS_IE_LDX
1894ENUMX
1895 BFD_RELOC_SPARC_TLS_IE_ADD
1896ENUMX
1897 BFD_RELOC_SPARC_TLS_LE_HIX22
1898ENUMX
1899 BFD_RELOC_SPARC_TLS_LE_LOX10
1900ENUMX
1901 BFD_RELOC_SPARC_TLS_DTPMOD32
1902ENUMX
1903 BFD_RELOC_SPARC_TLS_DTPMOD64
1904ENUMX
1905 BFD_RELOC_SPARC_TLS_DTPOFF32
1906ENUMX
1907 BFD_RELOC_SPARC_TLS_DTPOFF64
1908ENUMX
1909 BFD_RELOC_SPARC_TLS_TPOFF32
1910ENUMX
1911 BFD_RELOC_SPARC_TLS_TPOFF64
1912ENUMDOC
1913 SPARC TLS relocations
252b5132
RH
1914
1915ENUM
1916 BFD_RELOC_ALPHA_GPDISP_HI16
1917ENUMDOC
1918 Alpha ECOFF and ELF relocations. Some of these treat the symbol or
1919 "addend" in some special way.
1920 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1921 writing; when reading, it will be the absolute section symbol. The
1922 addend is the displacement in bytes of the "lda" instruction from
1923 the "ldah" instruction (which is at the address of this reloc).
1924ENUM
1925 BFD_RELOC_ALPHA_GPDISP_LO16
1926ENUMDOC
1927 For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1928 with GPDISP_HI16 relocs. The addend is ignored when writing the
1929 relocations out, and is filled in with the file's GP value on
1930 reading, for convenience.
1931
1932ENUM
1933 BFD_RELOC_ALPHA_GPDISP
1934ENUMDOC
1935 The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1936 relocation except that there is no accompanying GPDISP_LO16
1937 relocation.
1938
1939ENUM
1940 BFD_RELOC_ALPHA_LITERAL
1941ENUMX
1942 BFD_RELOC_ALPHA_ELF_LITERAL
1943ENUMX
1944 BFD_RELOC_ALPHA_LITUSE
1945ENUMDOC
1946 The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1947 the assembler turns it into a LDQ instruction to load the address of
1948 the symbol, and then fills in a register in the real instruction.
1949
1950 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1951 section symbol. The addend is ignored when writing, but is filled
1952 in with the file's GP value on reading, for convenience, as with the
1953 GPDISP_LO16 reloc.
1954
1955 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1956 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1957 but it generates output not based on the position within the .got
1958 section, but relative to the GP value chosen for the file during the
1959 final link stage.
1960
1961 The LITUSE reloc, on the instruction using the loaded address, gives
1962 information to the linker that it might be able to use to optimize
1963 away some literal section references. The symbol is ignored (read
1964 as the absolute section symbol), and the "addend" indicates the type
1965 of instruction using the register:
1966 1 - "memory" fmt insn
1967 2 - byte-manipulation (byte offset reg)
1968 3 - jsr (target of branch)
1969
252b5132
RH
1970ENUM
1971 BFD_RELOC_ALPHA_HINT
1972ENUMDOC
1973 The HINT relocation indicates a value that should be filled into the
1974 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1975 prediction logic which may be provided on some processors.
1976
1977ENUM
1978 BFD_RELOC_ALPHA_LINKAGE
1979ENUMDOC
1980 The LINKAGE relocation outputs a linkage pair in the object file,
1981 which is filled by the linker.
1982
1983ENUM
1984 BFD_RELOC_ALPHA_CODEADDR
1985ENUMDOC
1986 The CODEADDR relocation outputs a STO_CA in the object file,
1987 which is filled by the linker.
1988
dfe57ca0
RH
1989ENUM
1990 BFD_RELOC_ALPHA_GPREL_HI16
1991ENUMX
1992 BFD_RELOC_ALPHA_GPREL_LO16
1993ENUMDOC
dc810e39
AM
1994 The GPREL_HI/LO relocations together form a 32-bit offset from the
1995 GP register.
dfe57ca0 1996
7793f4d0
RH
1997ENUM
1998 BFD_RELOC_ALPHA_BRSGP
1999ENUMDOC
2000 Like BFD_RELOC_23_PCREL_S2, except that the source and target must
b34976b6 2001 share a common GP, and the target address is adjusted for
7793f4d0
RH
2002 STO_ALPHA_STD_GPLOAD.
2003
3765b1be
RH
2004ENUM
2005 BFD_RELOC_ALPHA_TLSGD
2006ENUMX
2007 BFD_RELOC_ALPHA_TLSLDM
2008ENUMX
2009 BFD_RELOC_ALPHA_DTPMOD64
2010ENUMX
2011 BFD_RELOC_ALPHA_GOTDTPREL16
2012ENUMX
2013 BFD_RELOC_ALPHA_DTPREL64
2014ENUMX
2015 BFD_RELOC_ALPHA_DTPREL_HI16
2016ENUMX
2017 BFD_RELOC_ALPHA_DTPREL_LO16
2018ENUMX
2019 BFD_RELOC_ALPHA_DTPREL16
2020ENUMX
2021 BFD_RELOC_ALPHA_GOTTPREL16
2022ENUMX
2023 BFD_RELOC_ALPHA_TPREL64
2024ENUMX
2025 BFD_RELOC_ALPHA_TPREL_HI16
2026ENUMX
2027 BFD_RELOC_ALPHA_TPREL_LO16
2028ENUMX
2029 BFD_RELOC_ALPHA_TPREL16
2030ENUMDOC
2031 Alpha thread-local storage relocations.
2032
252b5132
RH
2033ENUM
2034 BFD_RELOC_MIPS_JMP
2035ENUMDOC
2036 Bits 27..2 of the relocation address shifted right 2 bits;
2037 simple reloc otherwise.
2038
2039ENUM
2040 BFD_RELOC_MIPS16_JMP
2041ENUMDOC
2042 The MIPS16 jump instruction.
2043
2044ENUM
2045 BFD_RELOC_MIPS16_GPREL
2046ENUMDOC
2047 MIPS16 GP relative reloc.
2048
2049ENUM
2050 BFD_RELOC_HI16
2051ENUMDOC
2052 High 16 bits of 32-bit value; simple reloc.
2053ENUM
2054 BFD_RELOC_HI16_S
2055ENUMDOC
2056 High 16 bits of 32-bit value but the low 16 bits will be sign
2057 extended and added to form the final result. If the low 16
2058 bits form a negative number, we need to add one to the high value
2059 to compensate for the borrow when the low bits are added.
2060ENUM
2061 BFD_RELOC_LO16
2062ENUMDOC
2063 Low 16 bits.
0b25d3e6 2064
252b5132
RH
2065ENUM
2066 BFD_RELOC_MIPS_LITERAL
2067ENUMDOC
2068 Relocation against a MIPS literal section.
2069
2070ENUM
2071 BFD_RELOC_MIPS_GOT16
2072ENUMX
2073 BFD_RELOC_MIPS_CALL16
252b5132
RH
2074ENUMX
2075 BFD_RELOC_MIPS_GOT_HI16
2076ENUMX
2077 BFD_RELOC_MIPS_GOT_LO16
2078ENUMX
2079 BFD_RELOC_MIPS_CALL_HI16
2080ENUMX
2081 BFD_RELOC_MIPS_CALL_LO16
3f830999
MM
2082ENUMX
2083 BFD_RELOC_MIPS_SUB
2084ENUMX
2085 BFD_RELOC_MIPS_GOT_PAGE
2086ENUMX
2087 BFD_RELOC_MIPS_GOT_OFST
2088ENUMX
2089 BFD_RELOC_MIPS_GOT_DISP
c2feb664
NC
2090ENUMX
2091 BFD_RELOC_MIPS_SHIFT5
2092ENUMX
2093 BFD_RELOC_MIPS_SHIFT6
2094ENUMX
2095 BFD_RELOC_MIPS_INSERT_A
2096ENUMX
2097 BFD_RELOC_MIPS_INSERT_B
2098ENUMX
2099 BFD_RELOC_MIPS_DELETE
2100ENUMX
2101 BFD_RELOC_MIPS_HIGHEST
2102ENUMX
2103 BFD_RELOC_MIPS_HIGHER
2104ENUMX
2105 BFD_RELOC_MIPS_SCN_DISP
2106ENUMX
2107 BFD_RELOC_MIPS_REL16
2108ENUMX
2109 BFD_RELOC_MIPS_RELGOT
2110ENUMX
2111 BFD_RELOC_MIPS_JALR
980491e6
MR
2112ENUMDOC
2113 MIPS ELF relocations.
252b5132 2114COMMENT
980491e6 2115
4e5ba5b7
DB
2116ENUM
2117 BFD_RELOC_FRV_LABEL16
2118ENUMX
2119 BFD_RELOC_FRV_LABEL24
2120ENUMX
2121 BFD_RELOC_FRV_LO16
2122ENUMX
2123 BFD_RELOC_FRV_HI16
2124ENUMX
2125 BFD_RELOC_FRV_GPREL12
2126ENUMX
2127 BFD_RELOC_FRV_GPRELU12
2128ENUMX
2129 BFD_RELOC_FRV_GPREL32
2130ENUMX
2131 BFD_RELOC_FRV_GPRELHI
2132ENUMX
2133 BFD_RELOC_FRV_GPRELLO
51532845
AO
2134ENUMX
2135 BFD_RELOC_FRV_GOT12
2136ENUMX
2137 BFD_RELOC_FRV_GOTHI
2138ENUMX
2139 BFD_RELOC_FRV_GOTLO
2140ENUMX
2141 BFD_RELOC_FRV_FUNCDESC
2142ENUMX
2143 BFD_RELOC_FRV_FUNCDESC_GOT12
2144ENUMX
2145 BFD_RELOC_FRV_FUNCDESC_GOTHI
2146ENUMX
2147 BFD_RELOC_FRV_FUNCDESC_GOTLO
2148ENUMX
2149 BFD_RELOC_FRV_FUNCDESC_VALUE
2150ENUMX
2151 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2152ENUMX
2153 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2154ENUMX
2155 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2156ENUMX
2157 BFD_RELOC_FRV_GOTOFF12
2158ENUMX
2159 BFD_RELOC_FRV_GOTOFFHI
2160ENUMX
2161 BFD_RELOC_FRV_GOTOFFLO
90219bd0
AO
2162ENUMX
2163 BFD_RELOC_FRV_GETTLSOFF
2164ENUMX
2165 BFD_RELOC_FRV_TLSDESC_VALUE
2166ENUMX
2167 BFD_RELOC_FRV_GOTTLSDESC12
2168ENUMX
2169 BFD_RELOC_FRV_GOTTLSDESCHI
2170ENUMX
2171 BFD_RELOC_FRV_GOTTLSDESCLO
2172ENUMX
2173 BFD_RELOC_FRV_TLSMOFF12
2174ENUMX
2175 BFD_RELOC_FRV_TLSMOFFHI
2176ENUMX
2177 BFD_RELOC_FRV_TLSMOFFLO
2178ENUMX
2179 BFD_RELOC_FRV_GOTTLSOFF12
2180ENUMX
2181 BFD_RELOC_FRV_GOTTLSOFFHI
2182ENUMX
2183 BFD_RELOC_FRV_GOTTLSOFFLO
2184ENUMX
2185 BFD_RELOC_FRV_TLSOFF
2186ENUMX
2187 BFD_RELOC_FRV_TLSDESC_RELAX
2188ENUMX
2189 BFD_RELOC_FRV_GETTLSOFF_RELAX
2190ENUMX
2191 BFD_RELOC_FRV_TLSOFF_RELAX
2192ENUMX
2193 BFD_RELOC_FRV_TLSMOFF
4e5ba5b7
DB
2194ENUMDOC
2195 Fujitsu Frv Relocations.
2196COMMENT
252b5132 2197
03a12831
AO
2198ENUM
2199 BFD_RELOC_MN10300_GOTOFF24
2200ENUMDOC
2201 This is a 24bit GOT-relative reloc for the mn10300.
2202ENUM
2203 BFD_RELOC_MN10300_GOT32
2204ENUMDOC
2205 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2206 in the instruction.
2207ENUM
2208 BFD_RELOC_MN10300_GOT24
2209ENUMDOC
2210 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2211 in the instruction.
2212ENUM
2213 BFD_RELOC_MN10300_GOT16
2214ENUMDOC
2215 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2216 in the instruction.
2217ENUM
2218 BFD_RELOC_MN10300_COPY
2219ENUMDOC
2220 Copy symbol at runtime.
2221ENUM
2222 BFD_RELOC_MN10300_GLOB_DAT
2223ENUMDOC
2224 Create GOT entry.
2225ENUM
2226 BFD_RELOC_MN10300_JMP_SLOT
2227ENUMDOC
2228 Create PLT entry.
2229ENUM
2230 BFD_RELOC_MN10300_RELATIVE
2231ENUMDOC
2232 Adjust by program base.
2233COMMENT
252b5132
RH
2234
2235ENUM
2236 BFD_RELOC_386_GOT32
2237ENUMX
2238 BFD_RELOC_386_PLT32
2239ENUMX
2240 BFD_RELOC_386_COPY
2241ENUMX
2242 BFD_RELOC_386_GLOB_DAT
2243ENUMX
2244 BFD_RELOC_386_JUMP_SLOT
2245ENUMX
2246 BFD_RELOC_386_RELATIVE
2247ENUMX
2248 BFD_RELOC_386_GOTOFF
2249ENUMX
2250 BFD_RELOC_386_GOTPC
37e55690
JJ
2251ENUMX
2252 BFD_RELOC_386_TLS_TPOFF
2253ENUMX
2254 BFD_RELOC_386_TLS_IE
2255ENUMX
2256 BFD_RELOC_386_TLS_GOTIE
13ae64f3
JJ
2257ENUMX
2258 BFD_RELOC_386_TLS_LE
2259ENUMX
2260 BFD_RELOC_386_TLS_GD
2261ENUMX
2262 BFD_RELOC_386_TLS_LDM
2263ENUMX
2264 BFD_RELOC_386_TLS_LDO_32
2265ENUMX
2266 BFD_RELOC_386_TLS_IE_32
2267ENUMX
2268 BFD_RELOC_386_TLS_LE_32
2269ENUMX
2270 BFD_RELOC_386_TLS_DTPMOD32
2271ENUMX
2272 BFD_RELOC_386_TLS_DTPOFF32
2273ENUMX
2274 BFD_RELOC_386_TLS_TPOFF32
252b5132
RH
2275ENUMDOC
2276 i386/elf relocations
2277
8d88c4ca
NC
2278ENUM
2279 BFD_RELOC_X86_64_GOT32
2280ENUMX
2281 BFD_RELOC_X86_64_PLT32
2282ENUMX
2283 BFD_RELOC_X86_64_COPY
2284ENUMX
2285 BFD_RELOC_X86_64_GLOB_DAT
2286ENUMX
2287 BFD_RELOC_X86_64_JUMP_SLOT
2288ENUMX
2289 BFD_RELOC_X86_64_RELATIVE
2290ENUMX
2291 BFD_RELOC_X86_64_GOTPCREL
2292ENUMX
2293 BFD_RELOC_X86_64_32S
bffbf940
JJ
2294ENUMX
2295 BFD_RELOC_X86_64_DTPMOD64
2296ENUMX
2297 BFD_RELOC_X86_64_DTPOFF64
2298ENUMX
2299 BFD_RELOC_X86_64_TPOFF64
2300ENUMX
2301 BFD_RELOC_X86_64_TLSGD
2302ENUMX
2303 BFD_RELOC_X86_64_TLSLD
2304ENUMX
2305 BFD_RELOC_X86_64_DTPOFF32
2306ENUMX
2307 BFD_RELOC_X86_64_GOTTPOFF
2308ENUMX
2309 BFD_RELOC_X86_64_TPOFF32
8d88c4ca
NC
2310ENUMDOC
2311 x86-64/elf relocations
2312
252b5132
RH
2313ENUM
2314 BFD_RELOC_NS32K_IMM_8
2315ENUMX
2316 BFD_RELOC_NS32K_IMM_16
2317ENUMX
2318 BFD_RELOC_NS32K_IMM_32
2319ENUMX
2320 BFD_RELOC_NS32K_IMM_8_PCREL
2321ENUMX
2322 BFD_RELOC_NS32K_IMM_16_PCREL
2323ENUMX
2324 BFD_RELOC_NS32K_IMM_32_PCREL
2325ENUMX
2326 BFD_RELOC_NS32K_DISP_8
2327ENUMX
2328 BFD_RELOC_NS32K_DISP_16
2329ENUMX
2330 BFD_RELOC_NS32K_DISP_32
2331ENUMX
2332 BFD_RELOC_NS32K_DISP_8_PCREL
2333ENUMX
2334 BFD_RELOC_NS32K_DISP_16_PCREL
2335ENUMX
2336 BFD_RELOC_NS32K_DISP_32_PCREL
2337ENUMDOC
2338 ns32k relocations
2339
e135f41b
NC
2340ENUM
2341 BFD_RELOC_PDP11_DISP_8_PCREL
2342ENUMX
2343 BFD_RELOC_PDP11_DISP_6_PCREL
2344ENUMDOC
2345 PDP11 relocations
2346
0bcb993b
ILT
2347ENUM
2348 BFD_RELOC_PJ_CODE_HI16
2349ENUMX
2350 BFD_RELOC_PJ_CODE_LO16
2351ENUMX
2352 BFD_RELOC_PJ_CODE_DIR16
2353ENUMX
2354 BFD_RELOC_PJ_CODE_DIR32
2355ENUMX
2356 BFD_RELOC_PJ_CODE_REL16
2357ENUMX
2358 BFD_RELOC_PJ_CODE_REL32
2359ENUMDOC
2360 Picojava relocs. Not all of these appear in object files.
88b6bae0 2361
252b5132
RH
2362ENUM
2363 BFD_RELOC_PPC_B26
2364ENUMX
2365 BFD_RELOC_PPC_BA26
2366ENUMX
2367 BFD_RELOC_PPC_TOC16
2368ENUMX
2369 BFD_RELOC_PPC_B16
2370ENUMX
2371 BFD_RELOC_PPC_B16_BRTAKEN
2372ENUMX
2373 BFD_RELOC_PPC_B16_BRNTAKEN
2374ENUMX
2375 BFD_RELOC_PPC_BA16
2376ENUMX
2377 BFD_RELOC_PPC_BA16_BRTAKEN
2378ENUMX
2379 BFD_RELOC_PPC_BA16_BRNTAKEN
2380ENUMX
2381 BFD_RELOC_PPC_COPY
2382ENUMX
2383 BFD_RELOC_PPC_GLOB_DAT
2384ENUMX
2385 BFD_RELOC_PPC_JMP_SLOT
2386ENUMX
2387 BFD_RELOC_PPC_RELATIVE
2388ENUMX
2389 BFD_RELOC_PPC_LOCAL24PC
2390ENUMX
2391 BFD_RELOC_PPC_EMB_NADDR32
2392ENUMX
2393 BFD_RELOC_PPC_EMB_NADDR16
2394ENUMX
2395 BFD_RELOC_PPC_EMB_NADDR16_LO
2396ENUMX
2397 BFD_RELOC_PPC_EMB_NADDR16_HI
2398ENUMX
2399 BFD_RELOC_PPC_EMB_NADDR16_HA
2400ENUMX
2401 BFD_RELOC_PPC_EMB_SDAI16
2402ENUMX
2403 BFD_RELOC_PPC_EMB_SDA2I16
2404ENUMX
2405 BFD_RELOC_PPC_EMB_SDA2REL
2406ENUMX
2407 BFD_RELOC_PPC_EMB_SDA21
2408ENUMX
2409 BFD_RELOC_PPC_EMB_MRKREF
2410ENUMX
2411 BFD_RELOC_PPC_EMB_RELSEC16
2412ENUMX
2413 BFD_RELOC_PPC_EMB_RELST_LO
2414ENUMX
2415 BFD_RELOC_PPC_EMB_RELST_HI
2416ENUMX
2417 BFD_RELOC_PPC_EMB_RELST_HA
2418ENUMX
2419 BFD_RELOC_PPC_EMB_BIT_FLD
2420ENUMX
2421 BFD_RELOC_PPC_EMB_RELSDA
5bd4f169
AM
2422ENUMX
2423 BFD_RELOC_PPC64_HIGHER
2424ENUMX
2425 BFD_RELOC_PPC64_HIGHER_S
2426ENUMX
2427 BFD_RELOC_PPC64_HIGHEST
2428ENUMX
2429 BFD_RELOC_PPC64_HIGHEST_S
2430ENUMX
2431 BFD_RELOC_PPC64_TOC16_LO
2432ENUMX
2433 BFD_RELOC_PPC64_TOC16_HI
2434ENUMX
2435 BFD_RELOC_PPC64_TOC16_HA
2436ENUMX
2437 BFD_RELOC_PPC64_TOC
2438ENUMX
dc810e39 2439 BFD_RELOC_PPC64_PLTGOT16
5bd4f169
AM
2440ENUMX
2441 BFD_RELOC_PPC64_PLTGOT16_LO
2442ENUMX
2443 BFD_RELOC_PPC64_PLTGOT16_HI
2444ENUMX
2445 BFD_RELOC_PPC64_PLTGOT16_HA
2446ENUMX
2447 BFD_RELOC_PPC64_ADDR16_DS
2448ENUMX
2449 BFD_RELOC_PPC64_ADDR16_LO_DS
2450ENUMX
2451 BFD_RELOC_PPC64_GOT16_DS
2452ENUMX
2453 BFD_RELOC_PPC64_GOT16_LO_DS
2454ENUMX
2455 BFD_RELOC_PPC64_PLT16_LO_DS
2456ENUMX
2457 BFD_RELOC_PPC64_SECTOFF_DS
2458ENUMX
2459 BFD_RELOC_PPC64_SECTOFF_LO_DS
2460ENUMX
2461 BFD_RELOC_PPC64_TOC16_DS
2462ENUMX
2463 BFD_RELOC_PPC64_TOC16_LO_DS
2464ENUMX
2465 BFD_RELOC_PPC64_PLTGOT16_DS
2466ENUMX
2467 BFD_RELOC_PPC64_PLTGOT16_LO_DS
252b5132
RH
2468ENUMDOC
2469 Power(rs6000) and PowerPC relocations.
411e1bfb
AM
2470
2471ENUM
2472 BFD_RELOC_PPC_TLS
2473ENUMX
2474 BFD_RELOC_PPC_DTPMOD
2475ENUMX
2476 BFD_RELOC_PPC_TPREL16
2477ENUMX
2478 BFD_RELOC_PPC_TPREL16_LO
2479ENUMX
2480 BFD_RELOC_PPC_TPREL16_HI
2481ENUMX
2482 BFD_RELOC_PPC_TPREL16_HA
2483ENUMX
2484 BFD_RELOC_PPC_TPREL
2485ENUMX
2486 BFD_RELOC_PPC_DTPREL16
2487ENUMX
2488 BFD_RELOC_PPC_DTPREL16_LO
2489ENUMX
2490 BFD_RELOC_PPC_DTPREL16_HI
2491ENUMX
2492 BFD_RELOC_PPC_DTPREL16_HA
2493ENUMX
2494 BFD_RELOC_PPC_DTPREL
2495ENUMX
2496 BFD_RELOC_PPC_GOT_TLSGD16
2497ENUMX
2498 BFD_RELOC_PPC_GOT_TLSGD16_LO
2499ENUMX
2500 BFD_RELOC_PPC_GOT_TLSGD16_HI
2501ENUMX
2502 BFD_RELOC_PPC_GOT_TLSGD16_HA
2503ENUMX
2504 BFD_RELOC_PPC_GOT_TLSLD16
2505ENUMX
2506 BFD_RELOC_PPC_GOT_TLSLD16_LO
2507ENUMX
2508 BFD_RELOC_PPC_GOT_TLSLD16_HI
2509ENUMX
2510 BFD_RELOC_PPC_GOT_TLSLD16_HA
2511ENUMX
2512 BFD_RELOC_PPC_GOT_TPREL16
2513ENUMX
2514 BFD_RELOC_PPC_GOT_TPREL16_LO
2515ENUMX
2516 BFD_RELOC_PPC_GOT_TPREL16_HI
2517ENUMX
2518 BFD_RELOC_PPC_GOT_TPREL16_HA
2519ENUMX
2520 BFD_RELOC_PPC_GOT_DTPREL16
2521ENUMX
2522 BFD_RELOC_PPC_GOT_DTPREL16_LO
2523ENUMX
2524 BFD_RELOC_PPC_GOT_DTPREL16_HI
2525ENUMX
2526 BFD_RELOC_PPC_GOT_DTPREL16_HA
2527ENUMX
2528 BFD_RELOC_PPC64_TPREL16_DS
2529ENUMX
2530 BFD_RELOC_PPC64_TPREL16_LO_DS
2531ENUMX
2532 BFD_RELOC_PPC64_TPREL16_HIGHER
2533ENUMX
2534 BFD_RELOC_PPC64_TPREL16_HIGHERA
2535ENUMX
2536 BFD_RELOC_PPC64_TPREL16_HIGHEST
2537ENUMX
2538 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2539ENUMX
2540 BFD_RELOC_PPC64_DTPREL16_DS
2541ENUMX
2542 BFD_RELOC_PPC64_DTPREL16_LO_DS
2543ENUMX
2544 BFD_RELOC_PPC64_DTPREL16_HIGHER
2545ENUMX
2546 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2547ENUMX
2548 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2549ENUMX
2550 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2551ENUMDOC
2552 PowerPC and PowerPC64 thread-local storage relocations.
252b5132 2553
5b93d8bb
AM
2554ENUM
2555 BFD_RELOC_I370_D12
2556ENUMDOC
2557 IBM 370/390 relocations
2558
252b5132
RH
2559ENUM
2560 BFD_RELOC_CTOR
2561ENUMDOC
7dee875e 2562 The type of reloc used to build a constructor table - at the moment
252b5132
RH
2563 probably a 32 bit wide absolute relocation, but the target can choose.
2564 It generally does map to one of the other relocation types.
2565
2566ENUM
2567 BFD_RELOC_ARM_PCREL_BRANCH
2568ENUMDOC
2569 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2570 not stored in the instruction.
dfc5f959
NC
2571ENUM
2572 BFD_RELOC_ARM_PCREL_BLX
2573ENUMDOC
2574 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2575 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2576 field in the instruction.
2577ENUM
2578 BFD_RELOC_THUMB_PCREL_BLX
2579ENUMDOC
2580 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2581 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2582 field in the instruction.
252b5132
RH
2583ENUM
2584 BFD_RELOC_ARM_IMMEDIATE
752149a0
NC
2585ENUMX
2586 BFD_RELOC_ARM_ADRL_IMMEDIATE
252b5132
RH
2587ENUMX
2588 BFD_RELOC_ARM_OFFSET_IMM
2589ENUMX
2590 BFD_RELOC_ARM_SHIFT_IMM
0dd132b6
NC
2591ENUMX
2592 BFD_RELOC_ARM_SMI
252b5132
RH
2593ENUMX
2594 BFD_RELOC_ARM_SWI
2595ENUMX
2596 BFD_RELOC_ARM_MULTI
2597ENUMX
2598 BFD_RELOC_ARM_CP_OFF_IMM
e16bb312
NC
2599ENUMX
2600 BFD_RELOC_ARM_CP_OFF_IMM_S2
252b5132
RH
2601ENUMX
2602 BFD_RELOC_ARM_ADR_IMM
2603ENUMX
2604 BFD_RELOC_ARM_LDR_IMM
2605ENUMX
2606 BFD_RELOC_ARM_LITERAL
2607ENUMX
2608 BFD_RELOC_ARM_IN_POOL
2609ENUMX
2610 BFD_RELOC_ARM_OFFSET_IMM8
2611ENUMX
2612 BFD_RELOC_ARM_HWLITERAL
2613ENUMX
2614 BFD_RELOC_ARM_THUMB_ADD
2615ENUMX
2616 BFD_RELOC_ARM_THUMB_IMM
2617ENUMX
2618 BFD_RELOC_ARM_THUMB_SHIFT
2619ENUMX
2620 BFD_RELOC_ARM_THUMB_OFFSET
2621ENUMX
2622 BFD_RELOC_ARM_GOT12
2623ENUMX
2624 BFD_RELOC_ARM_GOT32
2625ENUMX
2626 BFD_RELOC_ARM_JUMP_SLOT
2627ENUMX
2628 BFD_RELOC_ARM_COPY
2629ENUMX
2630 BFD_RELOC_ARM_GLOB_DAT
2631ENUMX
2632 BFD_RELOC_ARM_PLT32
2633ENUMX
2634 BFD_RELOC_ARM_RELATIVE
2635ENUMX
2636 BFD_RELOC_ARM_GOTOFF
2637ENUMX
2638 BFD_RELOC_ARM_GOTPC
2639ENUMDOC
2640 These relocs are only used within the ARM assembler. They are not
2641 (at present) written to any object files.
db6579d4 2642ENUM
9c504268 2643 BFD_RELOC_ARM_TARGET1
db6579d4
PB
2644ENUMDOC
2645 Pc-relative or absolute relocation depending on target. Used for
2646 entries in .init_array sections.
2647ENUM
2648 BFD_RELOC_ARM_ROSEGREL32
2649ENUMDOC
2650 Read-only segment base relative address.
2651ENUM
2652 BFD_RELOC_ARM_SBREL32
2653ENUMDOC
2654 Data segment base relative address.
eb043451
PB
2655ENUM
2656 BFD_RELOC_ARM_TARGET2
2657ENUMDOC
2658 This reloc is used for References to RTTI dta from exception handling
2659 tables. The actual definition depends on the target. It may be a
2660 pc-relative or some form of GOT-indirect relocation.
2661ENUM
2662 BFD_RELOC_ARM_PREL31
2663ENUMDOC
2664 31-bit PC relative address.
252b5132
RH
2665
2666ENUM
2667 BFD_RELOC_SH_PCDISP8BY2
2668ENUMX
2669 BFD_RELOC_SH_PCDISP12BY2
1d70c7fb
AO
2670ENUMX
2671 BFD_RELOC_SH_IMM3
2672ENUMX
2673 BFD_RELOC_SH_IMM3U
2674ENUMX
2675 BFD_RELOC_SH_DISP12
2676ENUMX
2677 BFD_RELOC_SH_DISP12BY2
2678ENUMX
2679 BFD_RELOC_SH_DISP12BY4
2680ENUMX
2681 BFD_RELOC_SH_DISP12BY8
2682ENUMX
2683 BFD_RELOC_SH_DISP20
2684ENUMX
2685 BFD_RELOC_SH_DISP20BY8
252b5132
RH
2686ENUMX
2687 BFD_RELOC_SH_IMM4
2688ENUMX
2689 BFD_RELOC_SH_IMM4BY2
2690ENUMX
2691 BFD_RELOC_SH_IMM4BY4
2692ENUMX
2693 BFD_RELOC_SH_IMM8
2694ENUMX
2695 BFD_RELOC_SH_IMM8BY2
2696ENUMX
2697 BFD_RELOC_SH_IMM8BY4
2698ENUMX
2699 BFD_RELOC_SH_PCRELIMM8BY2
2700ENUMX
2701 BFD_RELOC_SH_PCRELIMM8BY4
2702ENUMX
2703 BFD_RELOC_SH_SWITCH16
2704ENUMX
2705 BFD_RELOC_SH_SWITCH32
2706ENUMX
2707 BFD_RELOC_SH_USES
2708ENUMX
2709 BFD_RELOC_SH_COUNT
2710ENUMX
2711 BFD_RELOC_SH_ALIGN
2712ENUMX
2713 BFD_RELOC_SH_CODE
2714ENUMX
2715 BFD_RELOC_SH_DATA
2716ENUMX
2717 BFD_RELOC_SH_LABEL
015551fc
JR
2718ENUMX
2719 BFD_RELOC_SH_LOOP_START
2720ENUMX
2721 BFD_RELOC_SH_LOOP_END
3d96075c
L
2722ENUMX
2723 BFD_RELOC_SH_COPY
2724ENUMX
2725 BFD_RELOC_SH_GLOB_DAT
2726ENUMX
2727 BFD_RELOC_SH_JMP_SLOT
2728ENUMX
2729 BFD_RELOC_SH_RELATIVE
2730ENUMX
2731 BFD_RELOC_SH_GOTPC
eb1e0e80
NC
2732ENUMX
2733 BFD_RELOC_SH_GOT_LOW16
2734ENUMX
2735 BFD_RELOC_SH_GOT_MEDLOW16
2736ENUMX
2737 BFD_RELOC_SH_GOT_MEDHI16
2738ENUMX
2739 BFD_RELOC_SH_GOT_HI16
2740ENUMX
2741 BFD_RELOC_SH_GOTPLT_LOW16
2742ENUMX
2743 BFD_RELOC_SH_GOTPLT_MEDLOW16
2744ENUMX
2745 BFD_RELOC_SH_GOTPLT_MEDHI16
2746ENUMX
2747 BFD_RELOC_SH_GOTPLT_HI16
2748ENUMX
2749 BFD_RELOC_SH_PLT_LOW16
2750ENUMX
2751 BFD_RELOC_SH_PLT_MEDLOW16
2752ENUMX
2753 BFD_RELOC_SH_PLT_MEDHI16
2754ENUMX
2755 BFD_RELOC_SH_PLT_HI16
2756ENUMX
2757 BFD_RELOC_SH_GOTOFF_LOW16
2758ENUMX
2759 BFD_RELOC_SH_GOTOFF_MEDLOW16
2760ENUMX
2761 BFD_RELOC_SH_GOTOFF_MEDHI16
2762ENUMX
2763 BFD_RELOC_SH_GOTOFF_HI16
2764ENUMX
2765 BFD_RELOC_SH_GOTPC_LOW16
2766ENUMX
2767 BFD_RELOC_SH_GOTPC_MEDLOW16
2768ENUMX
2769 BFD_RELOC_SH_GOTPC_MEDHI16
2770ENUMX
2771 BFD_RELOC_SH_GOTPC_HI16
2772ENUMX
2773 BFD_RELOC_SH_COPY64
2774ENUMX
2775 BFD_RELOC_SH_GLOB_DAT64
2776ENUMX
2777 BFD_RELOC_SH_JMP_SLOT64
2778ENUMX
2779 BFD_RELOC_SH_RELATIVE64
2780ENUMX
2781 BFD_RELOC_SH_GOT10BY4
2782ENUMX
2783 BFD_RELOC_SH_GOT10BY8
2784ENUMX
2785 BFD_RELOC_SH_GOTPLT10BY4
2786ENUMX
2787 BFD_RELOC_SH_GOTPLT10BY8
2788ENUMX
2789 BFD_RELOC_SH_GOTPLT32
2790ENUMX
2791 BFD_RELOC_SH_SHMEDIA_CODE
2792ENUMX
2793 BFD_RELOC_SH_IMMU5
2794ENUMX
2795 BFD_RELOC_SH_IMMS6
2796ENUMX
2797 BFD_RELOC_SH_IMMS6BY32
2798ENUMX
2799 BFD_RELOC_SH_IMMU6
2800ENUMX
2801 BFD_RELOC_SH_IMMS10
2802ENUMX
2803 BFD_RELOC_SH_IMMS10BY2
2804ENUMX
2805 BFD_RELOC_SH_IMMS10BY4
2806ENUMX
2807 BFD_RELOC_SH_IMMS10BY8
2808ENUMX
2809 BFD_RELOC_SH_IMMS16
2810ENUMX
2811 BFD_RELOC_SH_IMMU16
2812ENUMX
2813 BFD_RELOC_SH_IMM_LOW16
2814ENUMX
2815 BFD_RELOC_SH_IMM_LOW16_PCREL
2816ENUMX
2817 BFD_RELOC_SH_IMM_MEDLOW16
2818ENUMX
2819 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2820ENUMX
2821 BFD_RELOC_SH_IMM_MEDHI16
2822ENUMX
2823 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2824ENUMX
2825 BFD_RELOC_SH_IMM_HI16
2826ENUMX
2827 BFD_RELOC_SH_IMM_HI16_PCREL
2828ENUMX
2829 BFD_RELOC_SH_PT_16
3376eaf5
KK
2830ENUMX
2831 BFD_RELOC_SH_TLS_GD_32
2832ENUMX
2833 BFD_RELOC_SH_TLS_LD_32
2834ENUMX
2835 BFD_RELOC_SH_TLS_LDO_32
2836ENUMX
2837 BFD_RELOC_SH_TLS_IE_32
2838ENUMX
2839 BFD_RELOC_SH_TLS_LE_32
2840ENUMX
2841 BFD_RELOC_SH_TLS_DTPMOD32
2842ENUMX
2843 BFD_RELOC_SH_TLS_DTPOFF32
2844ENUMX
2845 BFD_RELOC_SH_TLS_TPOFF32
252b5132 2846ENUMDOC
ef230218 2847 Renesas / SuperH SH relocs. Not all of these appear in object files.
252b5132
RH
2848
2849ENUM
2850 BFD_RELOC_THUMB_PCREL_BRANCH9
2851ENUMX
2852 BFD_RELOC_THUMB_PCREL_BRANCH12
2853ENUMX
2854 BFD_RELOC_THUMB_PCREL_BRANCH23
2855ENUMDOC
2856 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2857 be zero and is not stored in the instruction.
2858
2859ENUM
2860 BFD_RELOC_ARC_B22_PCREL
2861ENUMDOC
0d2bcfaf 2862 ARC Cores relocs.
252b5132
RH
2863 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2864 not stored in the instruction. The high 20 bits are installed in bits 26
2865 through 7 of the instruction.
2866ENUM
2867 BFD_RELOC_ARC_B26
2868ENUMDOC
2869 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2870 stored in the instruction. The high 24 bits are installed in bits 23
2871 through 0.
2872
2873ENUM
2874 BFD_RELOC_D10V_10_PCREL_R
2875ENUMDOC
2876 Mitsubishi D10V relocs.
2877 This is a 10-bit reloc with the right 2 bits
2878 assumed to be 0.
2879ENUM
2880 BFD_RELOC_D10V_10_PCREL_L
2881ENUMDOC
2882 Mitsubishi D10V relocs.
2883 This is a 10-bit reloc with the right 2 bits
2884 assumed to be 0. This is the same as the previous reloc
2885 except it is in the left container, i.e.,
2886 shifted left 15 bits.
2887ENUM
2888 BFD_RELOC_D10V_18
2889ENUMDOC
2890 This is an 18-bit reloc with the right 2 bits
2891 assumed to be 0.
2892ENUM
2893 BFD_RELOC_D10V_18_PCREL
2894ENUMDOC
2895 This is an 18-bit reloc with the right 2 bits
2896 assumed to be 0.
2897
2898ENUM
2899 BFD_RELOC_D30V_6
2900ENUMDOC
2901 Mitsubishi D30V relocs.
2902 This is a 6-bit absolute reloc.
2903ENUM
2904 BFD_RELOC_D30V_9_PCREL
2905ENUMDOC
88b6bae0
AM
2906 This is a 6-bit pc-relative reloc with
2907 the right 3 bits assumed to be 0.
252b5132
RH
2908ENUM
2909 BFD_RELOC_D30V_9_PCREL_R
2910ENUMDOC
88b6bae0 2911 This is a 6-bit pc-relative reloc with
252b5132
RH
2912 the right 3 bits assumed to be 0. Same
2913 as the previous reloc but on the right side
88b6bae0 2914 of the container.
252b5132
RH
2915ENUM
2916 BFD_RELOC_D30V_15
2917ENUMDOC
88b6bae0
AM
2918 This is a 12-bit absolute reloc with the
2919 right 3 bitsassumed to be 0.
252b5132
RH
2920ENUM
2921 BFD_RELOC_D30V_15_PCREL
2922ENUMDOC
88b6bae0
AM
2923 This is a 12-bit pc-relative reloc with
2924 the right 3 bits assumed to be 0.
252b5132
RH
2925ENUM
2926 BFD_RELOC_D30V_15_PCREL_R
2927ENUMDOC
88b6bae0 2928 This is a 12-bit pc-relative reloc with
252b5132
RH
2929 the right 3 bits assumed to be 0. Same
2930 as the previous reloc but on the right side
88b6bae0 2931 of the container.
252b5132
RH
2932ENUM
2933 BFD_RELOC_D30V_21
2934ENUMDOC
88b6bae0 2935 This is an 18-bit absolute reloc with
252b5132
RH
2936 the right 3 bits assumed to be 0.
2937ENUM
2938 BFD_RELOC_D30V_21_PCREL
2939ENUMDOC
88b6bae0 2940 This is an 18-bit pc-relative reloc with
252b5132
RH
2941 the right 3 bits assumed to be 0.
2942ENUM
2943 BFD_RELOC_D30V_21_PCREL_R
2944ENUMDOC
88b6bae0 2945 This is an 18-bit pc-relative reloc with
252b5132
RH
2946 the right 3 bits assumed to be 0. Same
2947 as the previous reloc but on the right side
2948 of the container.
2949ENUM
2950 BFD_RELOC_D30V_32
2951ENUMDOC
2952 This is a 32-bit absolute reloc.
2953ENUM
2954 BFD_RELOC_D30V_32_PCREL
2955ENUMDOC
2956 This is a 32-bit pc-relative reloc.
2957
d172d4ba
NC
2958ENUM
2959 BFD_RELOC_DLX_HI16_S
2960ENUMDOC
2961 DLX relocs
2962ENUM
2963 BFD_RELOC_DLX_LO16
2964ENUMDOC
2965 DLX relocs
2966ENUM
2967 BFD_RELOC_DLX_JMP26
2968ENUMDOC
2969 DLX relocs
2970
252b5132
RH
2971ENUM
2972 BFD_RELOC_M32R_24
2973ENUMDOC
26597c86 2974 Renesas M32R (formerly Mitsubishi M32R) relocs.
252b5132
RH
2975 This is a 24 bit absolute address.
2976ENUM
2977 BFD_RELOC_M32R_10_PCREL
2978ENUMDOC
2979 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2980ENUM
2981 BFD_RELOC_M32R_18_PCREL
2982ENUMDOC
2983 This is an 18-bit reloc with the right 2 bits assumed to be 0.
2984ENUM
2985 BFD_RELOC_M32R_26_PCREL
2986ENUMDOC
2987 This is a 26-bit reloc with the right 2 bits assumed to be 0.
2988ENUM
2989 BFD_RELOC_M32R_HI16_ULO
2990ENUMDOC
2991 This is a 16-bit reloc containing the high 16 bits of an address
2992 used when the lower 16 bits are treated as unsigned.
2993ENUM
2994 BFD_RELOC_M32R_HI16_SLO
2995ENUMDOC
2996 This is a 16-bit reloc containing the high 16 bits of an address
2997 used when the lower 16 bits are treated as signed.
2998ENUM
2999 BFD_RELOC_M32R_LO16
3000ENUMDOC
3001 This is a 16-bit reloc containing the lower 16 bits of an address.
3002ENUM
3003 BFD_RELOC_M32R_SDA16
3004ENUMDOC
3005 This is a 16-bit reloc containing the small data area offset for use in
3006 add3, load, and store instructions.
6edf0760
NC
3007ENUM
3008 BFD_RELOC_M32R_GOT24
3009ENUMX
3010 BFD_RELOC_M32R_26_PLTREL
3011ENUMX
3012 BFD_RELOC_M32R_COPY
3013ENUMX
3014 BFD_RELOC_M32R_GLOB_DAT
3015ENUMX
3016 BFD_RELOC_M32R_JMP_SLOT
3017ENUMX
3018 BFD_RELOC_M32R_RELATIVE
3019ENUMX
3020 BFD_RELOC_M32R_GOTOFF
097f809a
NC
3021ENUMX
3022 BFD_RELOC_M32R_GOTOFF_HI_ULO
3023ENUMX
3024 BFD_RELOC_M32R_GOTOFF_HI_SLO
3025ENUMX
3026 BFD_RELOC_M32R_GOTOFF_LO
6edf0760
NC
3027ENUMX
3028 BFD_RELOC_M32R_GOTPC24
3029ENUMX
3030 BFD_RELOC_M32R_GOT16_HI_ULO
3031ENUMX
3032 BFD_RELOC_M32R_GOT16_HI_SLO
3033ENUMX
3034 BFD_RELOC_M32R_GOT16_LO
3035ENUMX
3036 BFD_RELOC_M32R_GOTPC_HI_ULO
3037ENUMX
3038 BFD_RELOC_M32R_GOTPC_HI_SLO
3039ENUMX
3040 BFD_RELOC_M32R_GOTPC_LO
3041ENUMDOC
3042 For PIC.
3043
252b5132
RH
3044
3045ENUM
3046 BFD_RELOC_V850_9_PCREL
3047ENUMDOC
3048 This is a 9-bit reloc
3049ENUM
3050 BFD_RELOC_V850_22_PCREL
3051ENUMDOC
3052 This is a 22-bit reloc
3053
3054ENUM
3055 BFD_RELOC_V850_SDA_16_16_OFFSET
3056ENUMDOC
3057 This is a 16 bit offset from the short data area pointer.
3058ENUM
3059 BFD_RELOC_V850_SDA_15_16_OFFSET
3060ENUMDOC
3061 This is a 16 bit offset (of which only 15 bits are used) from the
3062 short data area pointer.
3063ENUM
3064 BFD_RELOC_V850_ZDA_16_16_OFFSET
3065ENUMDOC
3066 This is a 16 bit offset from the zero data area pointer.
3067ENUM
3068 BFD_RELOC_V850_ZDA_15_16_OFFSET
3069ENUMDOC
3070 This is a 16 bit offset (of which only 15 bits are used) from the
3071 zero data area pointer.
3072ENUM
3073 BFD_RELOC_V850_TDA_6_8_OFFSET
3074ENUMDOC
3075 This is an 8 bit offset (of which only 6 bits are used) from the
3076 tiny data area pointer.
3077ENUM
3078 BFD_RELOC_V850_TDA_7_8_OFFSET
3079ENUMDOC
3080 This is an 8bit offset (of which only 7 bits are used) from the tiny
3081 data area pointer.
3082ENUM
3083 BFD_RELOC_V850_TDA_7_7_OFFSET
3084ENUMDOC
3085 This is a 7 bit offset from the tiny data area pointer.
3086ENUM
3087 BFD_RELOC_V850_TDA_16_16_OFFSET
3088ENUMDOC
3089 This is a 16 bit offset from the tiny data area pointer.
3090COMMENT
3091ENUM
3092 BFD_RELOC_V850_TDA_4_5_OFFSET
3093ENUMDOC
3094 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3095 data area pointer.
3096ENUM
3097 BFD_RELOC_V850_TDA_4_4_OFFSET
3098ENUMDOC
3099 This is a 4 bit offset from the tiny data area pointer.
3100ENUM
3101 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3102ENUMDOC
3103 This is a 16 bit offset from the short data area pointer, with the
7dee875e 3104 bits placed non-contiguously in the instruction.
252b5132
RH
3105ENUM
3106 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3107ENUMDOC
3108 This is a 16 bit offset from the zero data area pointer, with the
7dee875e 3109 bits placed non-contiguously in the instruction.
252b5132
RH
3110ENUM
3111 BFD_RELOC_V850_CALLT_6_7_OFFSET
3112ENUMDOC
3113 This is a 6 bit offset from the call table base pointer.
3114ENUM
3115 BFD_RELOC_V850_CALLT_16_16_OFFSET
3116ENUMDOC
3117 This is a 16 bit offset from the call table base pointer.
86aba9db
NC
3118ENUM
3119 BFD_RELOC_V850_LONGCALL
3120ENUMDOC
3121 Used for relaxing indirect function calls.
3122ENUM
3123 BFD_RELOC_V850_LONGJUMP
3124ENUMDOC
3125 Used for relaxing indirect jumps.
3126ENUM
3127 BFD_RELOC_V850_ALIGN
3128ENUMDOC
3129 Used to maintain alignment whilst relaxing.
1e50d24d
RS
3130ENUM
3131 BFD_RELOC_V850_LO16_SPLIT_OFFSET
3132ENUMDOC
3133 This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3134 instructions.
252b5132
RH
3135ENUM
3136 BFD_RELOC_MN10300_32_PCREL
3137ENUMDOC
3138 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3139 instruction.
3140ENUM
3141 BFD_RELOC_MN10300_16_PCREL
3142ENUMDOC
3143 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3144 instruction.
3145
3146ENUM
3147 BFD_RELOC_TIC30_LDP
3148ENUMDOC
3149 This is a 8bit DP reloc for the tms320c30, where the most
3150 significant 8 bits of a 24 bit word are placed into the least
3151 significant 8 bits of the opcode.
3152
81635ce4
TW
3153ENUM
3154 BFD_RELOC_TIC54X_PARTLS7
3155ENUMDOC
3156 This is a 7bit reloc for the tms320c54x, where the least
3157 significant 7 bits of a 16 bit word are placed into the least
3158 significant 7 bits of the opcode.
3159
3160ENUM
3161 BFD_RELOC_TIC54X_PARTMS9
3162ENUMDOC
3163 This is a 9bit DP reloc for the tms320c54x, where the most
3164 significant 9 bits of a 16 bit word are placed into the least
3165 significant 9 bits of the opcode.
3166
3167ENUM
3168 BFD_RELOC_TIC54X_23
3169ENUMDOC
3170 This is an extended address 23-bit reloc for the tms320c54x.
3171
3172ENUM
3173 BFD_RELOC_TIC54X_16_OF_23
3174ENUMDOC
3d855632
KH
3175 This is a 16-bit reloc for the tms320c54x, where the least
3176 significant 16 bits of a 23-bit extended address are placed into
81635ce4
TW
3177 the opcode.
3178
3179ENUM
3180 BFD_RELOC_TIC54X_MS7_OF_23
3181ENUMDOC
3182 This is a reloc for the tms320c54x, where the most
3d855632 3183 significant 7 bits of a 23-bit extended address are placed into
81635ce4 3184 the opcode.
81635ce4 3185
252b5132
RH
3186ENUM
3187 BFD_RELOC_FR30_48
3188ENUMDOC
3189 This is a 48 bit reloc for the FR30 that stores 32 bits.
3190ENUM
3191 BFD_RELOC_FR30_20
3192ENUMDOC
3193 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3194 two sections.
3195ENUM
3196 BFD_RELOC_FR30_6_IN_4
3197ENUMDOC
3198 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3199 4 bits.
3200ENUM
3201 BFD_RELOC_FR30_8_IN_8
3202ENUMDOC
3203 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3204 into 8 bits.
3205ENUM
3206 BFD_RELOC_FR30_9_IN_8
3207ENUMDOC
3208 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3209 into 8 bits.
3210ENUM
3211 BFD_RELOC_FR30_10_IN_8
3212ENUMDOC
3213 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3214 into 8 bits.
3215ENUM
3216 BFD_RELOC_FR30_9_PCREL
3217ENUMDOC
3218 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3219 short offset into 8 bits.
3220ENUM
3221 BFD_RELOC_FR30_12_PCREL
3222ENUMDOC
3223 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3224 short offset into 11 bits.
88b6bae0 3225
252b5132
RH
3226ENUM
3227 BFD_RELOC_MCORE_PCREL_IMM8BY4
3228ENUMX
3229 BFD_RELOC_MCORE_PCREL_IMM11BY2
3230ENUMX
3231 BFD_RELOC_MCORE_PCREL_IMM4BY2
3232ENUMX
3233 BFD_RELOC_MCORE_PCREL_32
3234ENUMX
3235 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
36797d47
NC
3236ENUMX
3237 BFD_RELOC_MCORE_RVA
252b5132
RH
3238ENUMDOC
3239 Motorola Mcore relocations.
88b6bae0 3240
3c3bdf30
NC
3241ENUM
3242 BFD_RELOC_MMIX_GETA
3243ENUMX
3244 BFD_RELOC_MMIX_GETA_1
3245ENUMX
3246 BFD_RELOC_MMIX_GETA_2
3247ENUMX
3248 BFD_RELOC_MMIX_GETA_3
3249ENUMDOC
3250 These are relocations for the GETA instruction.
3251ENUM
3252 BFD_RELOC_MMIX_CBRANCH
3253ENUMX
3254 BFD_RELOC_MMIX_CBRANCH_J
3255ENUMX
3256 BFD_RELOC_MMIX_CBRANCH_1
3257ENUMX
3258 BFD_RELOC_MMIX_CBRANCH_2
3259ENUMX
3260 BFD_RELOC_MMIX_CBRANCH_3
3261ENUMDOC
3262 These are relocations for a conditional branch instruction.
3263ENUM
3264 BFD_RELOC_MMIX_PUSHJ
3265ENUMX
3266 BFD_RELOC_MMIX_PUSHJ_1
3267ENUMX
3268 BFD_RELOC_MMIX_PUSHJ_2
3269ENUMX
3270 BFD_RELOC_MMIX_PUSHJ_3
f60ebe14
HPN
3271ENUMX
3272 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3c3bdf30
NC
3273ENUMDOC
3274 These are relocations for the PUSHJ instruction.
3275ENUM
3276 BFD_RELOC_MMIX_JMP
3277ENUMX
3278 BFD_RELOC_MMIX_JMP_1
3279ENUMX
3280 BFD_RELOC_MMIX_JMP_2
3281ENUMX
3282 BFD_RELOC_MMIX_JMP_3
3283ENUMDOC
3284 These are relocations for the JMP instruction.
3285ENUM
3286 BFD_RELOC_MMIX_ADDR19
3287ENUMDOC
3288 This is a relocation for a relative address as in a GETA instruction or
3289 a branch.
3290ENUM
3291 BFD_RELOC_MMIX_ADDR27
3292ENUMDOC
3293 This is a relocation for a relative address as in a JMP instruction.
3294ENUM
3295 BFD_RELOC_MMIX_REG_OR_BYTE
3296ENUMDOC
3297 This is a relocation for an instruction field that may be a general
3298 register or a value 0..255.
3299ENUM
3300 BFD_RELOC_MMIX_REG
3301ENUMDOC
3302 This is a relocation for an instruction field that may be a general
3303 register.
3304ENUM
3305 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3306ENUMDOC
3307 This is a relocation for two instruction fields holding a register and
3308 an offset, the equivalent of the relocation.
3309ENUM
3310 BFD_RELOC_MMIX_LOCAL
3311ENUMDOC
3312 This relocation is an assertion that the expression is not allocated as
3313 a global register. It does not modify contents.
3314
adde6300
AM
3315ENUM
3316 BFD_RELOC_AVR_7_PCREL
3317ENUMDOC
3318 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3319 short offset into 7 bits.
3320ENUM
3321 BFD_RELOC_AVR_13_PCREL
3322ENUMDOC
3323 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3324 short offset into 12 bits.
3325ENUM
3326 BFD_RELOC_AVR_16_PM
3327ENUMDOC
3328 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3d855632 3329 program memory address) into 16 bits.
adde6300
AM
3330ENUM
3331 BFD_RELOC_AVR_LO8_LDI
3332ENUMDOC
3333 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3334 data memory address) into 8 bit immediate value of LDI insn.
3335ENUM
3336 BFD_RELOC_AVR_HI8_LDI
3337ENUMDOC
3338 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3339 of data memory address) into 8 bit immediate value of LDI insn.
3340ENUM
3341 BFD_RELOC_AVR_HH8_LDI
3342ENUMDOC
3343 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3344 of program memory address) into 8 bit immediate value of LDI insn.
3345ENUM
3346 BFD_RELOC_AVR_LO8_LDI_NEG
3347ENUMDOC
3348 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3349 (usually data memory address) into 8 bit immediate value of SUBI insn.
3350ENUM
3351 BFD_RELOC_AVR_HI8_LDI_NEG
3352ENUMDOC
3353 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3354 (high 8 bit of data memory address) into 8 bit immediate value of
3355 SUBI insn.
3356ENUM
3357 BFD_RELOC_AVR_HH8_LDI_NEG
3358ENUMDOC
3359 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3360 (most high 8 bit of program memory address) into 8 bit immediate value
3361 of LDI or SUBI insn.
3362ENUM
3363 BFD_RELOC_AVR_LO8_LDI_PM
3364ENUMDOC
3365 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3366 command address) into 8 bit immediate value of LDI insn.
3367ENUM
3368 BFD_RELOC_AVR_HI8_LDI_PM
3369ENUMDOC
3370 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3371 of command address) into 8 bit immediate value of LDI insn.
3372ENUM
3373 BFD_RELOC_AVR_HH8_LDI_PM
3374ENUMDOC
3375 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3376 of command address) into 8 bit immediate value of LDI insn.
3377ENUM
3378 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3379ENUMDOC
3380 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3381 (usually command address) into 8 bit immediate value of SUBI insn.
3382ENUM
3383 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3384ENUMDOC
3385 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3386 (high 8 bit of 16 bit command address) into 8 bit immediate value
3387 of SUBI insn.
3388ENUM
3389 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3390ENUMDOC
3391 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3392 (high 6 bit of 22 bit command address) into 8 bit immediate
3393 value of SUBI insn.
3394ENUM
3395 BFD_RELOC_AVR_CALL
3396ENUMDOC
3397 This is a 32 bit reloc for the AVR that stores 23 bit value
3398 into 22 bits.
b996922c
AM
3399ENUM
3400 BFD_RELOC_AVR_LDI
3401ENUMDOC
3402 This is a 16 bit reloc for the AVR that stores all needed bits
3403 for absolute addressing with ldi with overflow check to linktime
3404ENUM
3405 BFD_RELOC_AVR_6
3406ENUMDOC
3407 This is a 6 bit reloc for the AVR that stores offset for ldd/std
3408 instructions
3409ENUM
3410 BFD_RELOC_AVR_6_ADIW
3411ENUMDOC
3412 This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3413 instructions
adde6300 3414
a85d7ed0
NC
3415ENUM
3416 BFD_RELOC_390_12
3417ENUMDOC
3418 Direct 12 bit.
3419ENUM
3420 BFD_RELOC_390_GOT12
3421ENUMDOC
3422 12 bit GOT offset.
3423ENUM
3424 BFD_RELOC_390_PLT32
3425ENUMDOC
3426 32 bit PC relative PLT address.
3427ENUM
3428 BFD_RELOC_390_COPY
3429ENUMDOC
3430 Copy symbol at runtime.
3431ENUM
3432 BFD_RELOC_390_GLOB_DAT
3433ENUMDOC
3434 Create GOT entry.
3435ENUM
3436 BFD_RELOC_390_JMP_SLOT
3437ENUMDOC
3438 Create PLT entry.
3439ENUM
3440 BFD_RELOC_390_RELATIVE
3441ENUMDOC
3442 Adjust by program base.
3443ENUM
3444 BFD_RELOC_390_GOTPC
3445ENUMDOC
3446 32 bit PC relative offset to GOT.
3447ENUM
3448 BFD_RELOC_390_GOT16
3449ENUMDOC
3450 16 bit GOT offset.
3451ENUM
3452 BFD_RELOC_390_PC16DBL
3453ENUMDOC
3454 PC relative 16 bit shifted by 1.
3455ENUM
3456 BFD_RELOC_390_PLT16DBL
3457ENUMDOC
3458 16 bit PC rel. PLT shifted by 1.
3459ENUM
3460 BFD_RELOC_390_PC32DBL
3461ENUMDOC
3462 PC relative 32 bit shifted by 1.
3463ENUM
3464 BFD_RELOC_390_PLT32DBL
3465ENUMDOC
3466 32 bit PC rel. PLT shifted by 1.
3467ENUM
3468 BFD_RELOC_390_GOTPCDBL
3469ENUMDOC
3470 32 bit PC rel. GOT shifted by 1.
3471ENUM
3472 BFD_RELOC_390_GOT64
3473ENUMDOC
3474 64 bit GOT offset.
3475ENUM
3476 BFD_RELOC_390_PLT64
3477ENUMDOC
3478 64 bit PC relative PLT address.
3479ENUM
3480 BFD_RELOC_390_GOTENT
3481ENUMDOC
3482 32 bit rel. offset to GOT entry.
5236c819
MS
3483ENUM
3484 BFD_RELOC_390_GOTOFF64
3485ENUMDOC
3486 64 bit offset to GOT.
3487ENUM
3488 BFD_RELOC_390_GOTPLT12
3489ENUMDOC
3490 12-bit offset to symbol-entry within GOT, with PLT handling.
3491ENUM
3492 BFD_RELOC_390_GOTPLT16
3493ENUMDOC
3494 16-bit offset to symbol-entry within GOT, with PLT handling.
3495ENUM
3496 BFD_RELOC_390_GOTPLT32
3497ENUMDOC
3498 32-bit offset to symbol-entry within GOT, with PLT handling.
3499ENUM
3500 BFD_RELOC_390_GOTPLT64
3501ENUMDOC
3502 64-bit offset to symbol-entry within GOT, with PLT handling.
3503ENUM
3504 BFD_RELOC_390_GOTPLTENT
3505ENUMDOC
3506 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3507ENUM
3508 BFD_RELOC_390_PLTOFF16
3509ENUMDOC
3510 16-bit rel. offset from the GOT to a PLT entry.
3511ENUM
3512 BFD_RELOC_390_PLTOFF32
3513ENUMDOC
3514 32-bit rel. offset from the GOT to a PLT entry.
3515ENUM
3516 BFD_RELOC_390_PLTOFF64
3517ENUMDOC
3518 64-bit rel. offset from the GOT to a PLT entry.
dc810e39 3519
69fc87f1
MS
3520ENUM
3521 BFD_RELOC_390_TLS_LOAD
3522ENUMX
3523 BFD_RELOC_390_TLS_GDCALL
3524ENUMX
3525 BFD_RELOC_390_TLS_LDCALL
3526ENUMX
3527 BFD_RELOC_390_TLS_GD32
3528ENUMX
3529 BFD_RELOC_390_TLS_GD64
3530ENUMX
3531 BFD_RELOC_390_TLS_GOTIE12
3532ENUMX
3533 BFD_RELOC_390_TLS_GOTIE32
3534ENUMX
3535 BFD_RELOC_390_TLS_GOTIE64
3536ENUMX
3537 BFD_RELOC_390_TLS_LDM32
3538ENUMX
3539 BFD_RELOC_390_TLS_LDM64
3540ENUMX
3541 BFD_RELOC_390_TLS_IE32
3542ENUMX
3543 BFD_RELOC_390_TLS_IE64
3544ENUMX
3545 BFD_RELOC_390_TLS_IEENT
3546ENUMX
3547 BFD_RELOC_390_TLS_LE32
3548ENUMX
3549 BFD_RELOC_390_TLS_LE64
3550ENUMX
3551 BFD_RELOC_390_TLS_LDO32
3552ENUMX
3553 BFD_RELOC_390_TLS_LDO64
3554ENUMX
3555 BFD_RELOC_390_TLS_DTPMOD
3556ENUMX
3557 BFD_RELOC_390_TLS_DTPOFF
3558ENUMX
3559 BFD_RELOC_390_TLS_TPOFF
3560ENUMDOC
3561 s390 tls relocations.
3562
bd1ea41b
MS
3563ENUM
3564 BFD_RELOC_390_20
3565ENUMX
3566 BFD_RELOC_390_GOT20
3567ENUMX
3568 BFD_RELOC_390_GOTPLT20
3569ENUMX
3570 BFD_RELOC_390_TLS_GOTIE20
3571ENUMDOC
3572 Long displacement extension.
3573
cf88bb9f
NC
3574ENUM
3575 BFD_RELOC_IP2K_FR9
3576ENUMDOC
3577 Scenix IP2K - 9-bit register number / data address
3578ENUM
3579 BFD_RELOC_IP2K_BANK
3580ENUMDOC
3581 Scenix IP2K - 4-bit register/data bank number
3582ENUM
3583 BFD_RELOC_IP2K_ADDR16CJP
3584ENUMDOC
3585 Scenix IP2K - low 13 bits of instruction word address
3586ENUM
3587 BFD_RELOC_IP2K_PAGE3
3588ENUMDOC
3589 Scenix IP2K - high 3 bits of instruction word address
3590ENUM
3591 BFD_RELOC_IP2K_LO8DATA
3592ENUMX
3593 BFD_RELOC_IP2K_HI8DATA
3594ENUMX
3595 BFD_RELOC_IP2K_EX8DATA
3596ENUMDOC
3597 Scenix IP2K - ext/low/high 8 bits of data address
3598ENUM
3599 BFD_RELOC_IP2K_LO8INSN
3600ENUMX
3601 BFD_RELOC_IP2K_HI8INSN
3602ENUMDOC
3603 Scenix IP2K - low/high 8 bits of instruction word address
3604ENUM
3605 BFD_RELOC_IP2K_PC_SKIP
3606ENUMDOC
3607 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3608ENUM
3609 BFD_RELOC_IP2K_TEXT
3610ENUMDOC
3611 Scenix IP2K - 16 bit word address in text section.
3612ENUM
3613 BFD_RELOC_IP2K_FR_OFFSET
3614ENUMDOC
3615 Scenix IP2K - 7-bit sp or dp offset
3616ENUM
3617 BFD_RELOC_VPE4KMATH_DATA
3618ENUMX
3619 BFD_RELOC_VPE4KMATH_INSN
3620ENUMDOC
3621 Scenix VPE4K coprocessor - data/insn-space addressing
3622
252b5132
RH
3623ENUM
3624 BFD_RELOC_VTABLE_INHERIT
3625ENUMX
3626 BFD_RELOC_VTABLE_ENTRY
3627ENUMDOC
88b6bae0 3628 These two relocations are used by the linker to determine which of
252b5132
RH
3629 the entries in a C++ virtual function table are actually used. When
3630 the --gc-sections option is given, the linker will zero out the entries
3631 that are not used, so that the code for those functions need not be
3632 included in the output.
3633
3634 VTABLE_INHERIT is a zero-space relocation used to describe to the
7dee875e 3635 linker the inheritance tree of a C++ virtual function table. The
252b5132
RH
3636 relocation's symbol should be the parent class' vtable, and the
3637 relocation should be located at the child vtable.
3638
3639 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3640 virtual function table entry. The reloc's symbol should refer to the
3641 table of the class mentioned in the code. Off of that base, an offset
88b6bae0 3642 describes the entry that is being used. For Rela hosts, this offset
252b5132
RH
3643 is stored in the reloc's addend. For Rel hosts, we are forced to put
3644 this offset in the reloc's section offset.
3645
800eeca4
JW
3646ENUM
3647 BFD_RELOC_IA64_IMM14
3648ENUMX
3649 BFD_RELOC_IA64_IMM22
3650ENUMX
3651 BFD_RELOC_IA64_IMM64
3652ENUMX
3653 BFD_RELOC_IA64_DIR32MSB
3654ENUMX
3655 BFD_RELOC_IA64_DIR32LSB
3656ENUMX
3657 BFD_RELOC_IA64_DIR64MSB
3658ENUMX
3659 BFD_RELOC_IA64_DIR64LSB
3660ENUMX
3661 BFD_RELOC_IA64_GPREL22
3662ENUMX
3663 BFD_RELOC_IA64_GPREL64I
3664ENUMX
3665 BFD_RELOC_IA64_GPREL32MSB
3666ENUMX
3667 BFD_RELOC_IA64_GPREL32LSB
3668ENUMX
3669 BFD_RELOC_IA64_GPREL64MSB
3670ENUMX
3671 BFD_RELOC_IA64_GPREL64LSB
3672ENUMX
3673 BFD_RELOC_IA64_LTOFF22
3674ENUMX
3675 BFD_RELOC_IA64_LTOFF64I
3676ENUMX
3677 BFD_RELOC_IA64_PLTOFF22
3678ENUMX
3679 BFD_RELOC_IA64_PLTOFF64I
3680ENUMX
3681 BFD_RELOC_IA64_PLTOFF64MSB
3682ENUMX
3683 BFD_RELOC_IA64_PLTOFF64LSB
3684ENUMX
3685 BFD_RELOC_IA64_FPTR64I
3686ENUMX
3687 BFD_RELOC_IA64_FPTR32MSB
3688ENUMX
3689 BFD_RELOC_IA64_FPTR32LSB
3690ENUMX
3691 BFD_RELOC_IA64_FPTR64MSB
3692ENUMX
3693 BFD_RELOC_IA64_FPTR64LSB
3694ENUMX
3695 BFD_RELOC_IA64_PCREL21B
748abff6
RH
3696ENUMX
3697 BFD_RELOC_IA64_PCREL21BI
800eeca4
JW
3698ENUMX
3699 BFD_RELOC_IA64_PCREL21M
3700ENUMX
3701 BFD_RELOC_IA64_PCREL21F
748abff6
RH
3702ENUMX
3703 BFD_RELOC_IA64_PCREL22
3704ENUMX
3705 BFD_RELOC_IA64_PCREL60B
3706ENUMX
3707 BFD_RELOC_IA64_PCREL64I
800eeca4
JW
3708ENUMX
3709 BFD_RELOC_IA64_PCREL32MSB
3710ENUMX
3711 BFD_RELOC_IA64_PCREL32LSB
3712ENUMX
3713 BFD_RELOC_IA64_PCREL64MSB
3714ENUMX
3715 BFD_RELOC_IA64_PCREL64LSB
3716ENUMX
3717 BFD_RELOC_IA64_LTOFF_FPTR22
3718ENUMX
3719 BFD_RELOC_IA64_LTOFF_FPTR64I
a4bd8390
JW
3720ENUMX
3721 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3722ENUMX
3723 BFD_RELOC_IA64_LTOFF_FPTR32LSB
800eeca4
JW
3724ENUMX
3725 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3726ENUMX
3727 BFD_RELOC_IA64_LTOFF_FPTR64LSB
800eeca4
JW
3728ENUMX
3729 BFD_RELOC_IA64_SEGREL32MSB
3730ENUMX
3731 BFD_RELOC_IA64_SEGREL32LSB
3732ENUMX
3733 BFD_RELOC_IA64_SEGREL64MSB
3734ENUMX
3735 BFD_RELOC_IA64_SEGREL64LSB
3736ENUMX
3737 BFD_RELOC_IA64_SECREL32MSB
3738ENUMX
3739 BFD_RELOC_IA64_SECREL32LSB
3740ENUMX
3741 BFD_RELOC_IA64_SECREL64MSB
3742ENUMX
3743 BFD_RELOC_IA64_SECREL64LSB
3744ENUMX
3745 BFD_RELOC_IA64_REL32MSB
3746ENUMX
3747 BFD_RELOC_IA64_REL32LSB
3748ENUMX
3749 BFD_RELOC_IA64_REL64MSB
3750ENUMX
3751 BFD_RELOC_IA64_REL64LSB
3752ENUMX
3753 BFD_RELOC_IA64_LTV32MSB
3754ENUMX
3755 BFD_RELOC_IA64_LTV32LSB
3756ENUMX
3757 BFD_RELOC_IA64_LTV64MSB
3758ENUMX
3759 BFD_RELOC_IA64_LTV64LSB
3760ENUMX
3761 BFD_RELOC_IA64_IPLTMSB
3762ENUMX
3763 BFD_RELOC_IA64_IPLTLSB
800eeca4
JW
3764ENUMX
3765 BFD_RELOC_IA64_COPY
13ae64f3
JJ
3766ENUMX
3767 BFD_RELOC_IA64_LTOFF22X
3768ENUMX
3769 BFD_RELOC_IA64_LDXMOV
3770ENUMX
3771 BFD_RELOC_IA64_TPREL14
800eeca4
JW
3772ENUMX
3773 BFD_RELOC_IA64_TPREL22
13ae64f3
JJ
3774ENUMX
3775 BFD_RELOC_IA64_TPREL64I
800eeca4
JW
3776ENUMX
3777 BFD_RELOC_IA64_TPREL64MSB
3778ENUMX
3779 BFD_RELOC_IA64_TPREL64LSB
3780ENUMX
13ae64f3 3781 BFD_RELOC_IA64_LTOFF_TPREL22
800eeca4 3782ENUMX
13ae64f3 3783 BFD_RELOC_IA64_DTPMOD64MSB
800eeca4 3784ENUMX
13ae64f3
JJ
3785 BFD_RELOC_IA64_DTPMOD64LSB
3786ENUMX
3787 BFD_RELOC_IA64_LTOFF_DTPMOD22
3788ENUMX
3789 BFD_RELOC_IA64_DTPREL14
3790ENUMX
3791 BFD_RELOC_IA64_DTPREL22
3792ENUMX
3793 BFD_RELOC_IA64_DTPREL64I
3794ENUMX
3795 BFD_RELOC_IA64_DTPREL32MSB
3796ENUMX
3797 BFD_RELOC_IA64_DTPREL32LSB
3798ENUMX
3799 BFD_RELOC_IA64_DTPREL64MSB
3800ENUMX
3801 BFD_RELOC_IA64_DTPREL64LSB
3802ENUMX
3803 BFD_RELOC_IA64_LTOFF_DTPREL22
800eeca4
JW
3804ENUMDOC
3805 Intel IA64 Relocations.
60bcf0fa
NC
3806
3807ENUM
3808 BFD_RELOC_M68HC11_HI8
3809ENUMDOC
3810 Motorola 68HC11 reloc.
3dbfec86 3811 This is the 8 bit high part of an absolute address.
60bcf0fa
NC
3812ENUM
3813 BFD_RELOC_M68HC11_LO8
3814ENUMDOC
3815 Motorola 68HC11 reloc.
3dbfec86 3816 This is the 8 bit low part of an absolute address.
60bcf0fa
NC
3817ENUM
3818 BFD_RELOC_M68HC11_3B
3819ENUMDOC
3820 Motorola 68HC11 reloc.
3dbfec86
SC
3821 This is the 3 bit of a value.
3822ENUM
3823 BFD_RELOC_M68HC11_RL_JUMP
3824ENUMDOC
3825 Motorola 68HC11 reloc.
3826 This reloc marks the beginning of a jump/call instruction.
3827 It is used for linker relaxation to correctly identify beginning
7dee875e 3828 of instruction and change some branches to use PC-relative
3dbfec86
SC
3829 addressing mode.
3830ENUM
3831 BFD_RELOC_M68HC11_RL_GROUP
3832ENUMDOC
3833 Motorola 68HC11 reloc.
3834 This reloc marks a group of several instructions that gcc generates
3835 and for which the linker relaxation pass can modify and/or remove
3836 some of them.
3837ENUM
3838 BFD_RELOC_M68HC11_LO16
3839ENUMDOC
3840 Motorola 68HC11 reloc.
3841 This is the 16-bit lower part of an address. It is used for 'call'
3842 instruction to specify the symbol address without any special
3843 transformation (due to memory bank window).
3844ENUM
3845 BFD_RELOC_M68HC11_PAGE
3846ENUMDOC
3847 Motorola 68HC11 reloc.
3848 This is a 8-bit reloc that specifies the page number of an address.
3849 It is used by 'call' instruction to specify the page number of
3850 the symbol.
3851ENUM
3852 BFD_RELOC_M68HC11_24
3853ENUMDOC
3854 Motorola 68HC11 reloc.
3855 This is a 24-bit reloc that represents the address with a 16-bit
3856 value and a 8-bit page number. The symbol address is transformed
3857 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
28d39d1a
NC
3858ENUM
3859 BFD_RELOC_M68HC12_5B
3860ENUMDOC
3861 Motorola 68HC12 reloc.
3862 This is the 5 bits of a value.
60bcf0fa 3863
0949843d
NC
3864ENUM
3865 BFD_RELOC_16C_NUM08
3866ENUMX
3867 BFD_RELOC_16C_NUM08_C
3868ENUMX
3869 BFD_RELOC_16C_NUM16
3870ENUMX
3871 BFD_RELOC_16C_NUM16_C
3872ENUMX
3873 BFD_RELOC_16C_NUM32
3874ENUMX
3875 BFD_RELOC_16C_NUM32_C
3876ENUMX
3877 BFD_RELOC_16C_DISP04
3878ENUMX
3879 BFD_RELOC_16C_DISP04_C
3880ENUMX
3881 BFD_RELOC_16C_DISP08
3882ENUMX
3883 BFD_RELOC_16C_DISP08_C
3884ENUMX
3885 BFD_RELOC_16C_DISP16
3886ENUMX
3887 BFD_RELOC_16C_DISP16_C
3888ENUMX
3889 BFD_RELOC_16C_DISP24
3890ENUMX
3891 BFD_RELOC_16C_DISP24_C
3892ENUMX
3893 BFD_RELOC_16C_DISP24a
3894ENUMX
3895 BFD_RELOC_16C_DISP24a_C
3896ENUMX
3897 BFD_RELOC_16C_REG04
3898ENUMX
3899 BFD_RELOC_16C_REG04_C
3900ENUMX
3901 BFD_RELOC_16C_REG04a
3902ENUMX
3903 BFD_RELOC_16C_REG04a_C
3904ENUMX
3905 BFD_RELOC_16C_REG14
3906ENUMX
3907 BFD_RELOC_16C_REG14_C
3908ENUMX
3909 BFD_RELOC_16C_REG16
3910ENUMX
3911 BFD_RELOC_16C_REG16_C
3912ENUMX
3913 BFD_RELOC_16C_REG20
3914ENUMX
3915 BFD_RELOC_16C_REG20_C
3916ENUMX
3917 BFD_RELOC_16C_ABS20
3918ENUMX
3919 BFD_RELOC_16C_ABS20_C
3920ENUMX
3921 BFD_RELOC_16C_ABS24
3922ENUMX
3923 BFD_RELOC_16C_ABS24_C
3924ENUMX
3925 BFD_RELOC_16C_IMM04
3926ENUMX
3927 BFD_RELOC_16C_IMM04_C
3928ENUMX
3929 BFD_RELOC_16C_IMM16
3930ENUMX
3931 BFD_RELOC_16C_IMM16_C
3932ENUMX
3933 BFD_RELOC_16C_IMM20
3934ENUMX
3935 BFD_RELOC_16C_IMM20_C
3936ENUMX
3937 BFD_RELOC_16C_IMM24
3938ENUMX
3939 BFD_RELOC_16C_IMM24_C
3940ENUMX
3941 BFD_RELOC_16C_IMM32
3942ENUMX
3943 BFD_RELOC_16C_IMM32_C
3944ENUMDOC
3945 NS CR16C Relocations.
3946
1fe1f39c
NC
3947ENUM
3948 BFD_RELOC_CRX_REL4
3949ENUMX
3950 BFD_RELOC_CRX_REL8
3951ENUMX
3952 BFD_RELOC_CRX_REL8_CMP
3953ENUMX
3954 BFD_RELOC_CRX_REL16
3955ENUMX
3956 BFD_RELOC_CRX_REL24
3957ENUMX
3958 BFD_RELOC_CRX_REL32
3959ENUMX
3960 BFD_RELOC_CRX_REGREL12
3961ENUMX
3962 BFD_RELOC_CRX_REGREL22
3963ENUMX
3964 BFD_RELOC_CRX_REGREL28
3965ENUMX
3966 BFD_RELOC_CRX_REGREL32
3967ENUMX
3968 BFD_RELOC_CRX_ABS16
3969ENUMX
3970 BFD_RELOC_CRX_ABS32
3971ENUMX
3972 BFD_RELOC_CRX_NUM8
3973ENUMX
3974 BFD_RELOC_CRX_NUM16
3975ENUMX
3976 BFD_RELOC_CRX_NUM32
3977ENUMX
3978 BFD_RELOC_CRX_IMM16
3979ENUMX
3980 BFD_RELOC_CRX_IMM32
670ec21d
NC
3981ENUMX
3982 BFD_RELOC_CRX_SWITCH8
3983ENUMX
3984 BFD_RELOC_CRX_SWITCH16
3985ENUMX
3986 BFD_RELOC_CRX_SWITCH32
1fe1f39c
NC
3987ENUMDOC
3988 NS CRX Relocations.
3989
06c15ad7
HPN
3990ENUM
3991 BFD_RELOC_CRIS_BDISP8
3992ENUMX
3993 BFD_RELOC_CRIS_UNSIGNED_5
3994ENUMX
3995 BFD_RELOC_CRIS_SIGNED_6
3996ENUMX
3997 BFD_RELOC_CRIS_UNSIGNED_6
bac23f82
HPN
3998ENUMX
3999 BFD_RELOC_CRIS_SIGNED_8
4000ENUMX
4001 BFD_RELOC_CRIS_UNSIGNED_8
4002ENUMX
4003 BFD_RELOC_CRIS_SIGNED_16
4004ENUMX
4005 BFD_RELOC_CRIS_UNSIGNED_16
4006ENUMX
4007 BFD_RELOC_CRIS_LAPCQ_OFFSET
06c15ad7
HPN
4008ENUMX
4009 BFD_RELOC_CRIS_UNSIGNED_4
4010ENUMDOC
4011 These relocs are only used within the CRIS assembler. They are not
4012 (at present) written to any object files.
58d29fc3
HPN
4013ENUM
4014 BFD_RELOC_CRIS_COPY
4015ENUMX
4016 BFD_RELOC_CRIS_GLOB_DAT
4017ENUMX
4018 BFD_RELOC_CRIS_JUMP_SLOT
4019ENUMX
4020 BFD_RELOC_CRIS_RELATIVE
4021ENUMDOC
4022 Relocs used in ELF shared libraries for CRIS.
4023ENUM
4024 BFD_RELOC_CRIS_32_GOT
4025ENUMDOC
4026 32-bit offset to symbol-entry within GOT.
4027ENUM
4028 BFD_RELOC_CRIS_16_GOT
4029ENUMDOC
4030 16-bit offset to symbol-entry within GOT.
4031ENUM
4032 BFD_RELOC_CRIS_32_GOTPLT
4033ENUMDOC
4034 32-bit offset to symbol-entry within GOT, with PLT handling.
4035ENUM
4036 BFD_RELOC_CRIS_16_GOTPLT
4037ENUMDOC
4038 16-bit offset to symbol-entry within GOT, with PLT handling.
4039ENUM
4040 BFD_RELOC_CRIS_32_GOTREL
4041ENUMDOC
4042 32-bit offset to symbol, relative to GOT.
4043ENUM
4044 BFD_RELOC_CRIS_32_PLT_GOTREL
4045ENUMDOC
4046 32-bit offset to symbol with PLT entry, relative to GOT.
4047ENUM
4048 BFD_RELOC_CRIS_32_PLT_PCREL
4049ENUMDOC
4050 32-bit offset to symbol with PLT entry, relative to this relocation.
06c15ad7 4051
a87fdb8d
JE
4052ENUM
4053 BFD_RELOC_860_COPY
4054ENUMX
4055 BFD_RELOC_860_GLOB_DAT
4056ENUMX
4057 BFD_RELOC_860_JUMP_SLOT
4058ENUMX
4059 BFD_RELOC_860_RELATIVE
4060ENUMX
4061 BFD_RELOC_860_PC26
4062ENUMX
4063 BFD_RELOC_860_PLT26
4064ENUMX
4065 BFD_RELOC_860_PC16
4066ENUMX
4067 BFD_RELOC_860_LOW0
4068ENUMX
4069 BFD_RELOC_860_SPLIT0
4070ENUMX
4071 BFD_RELOC_860_LOW1
4072ENUMX
4073 BFD_RELOC_860_SPLIT1
4074ENUMX
4075 BFD_RELOC_860_LOW2
4076ENUMX
4077 BFD_RELOC_860_SPLIT2
4078ENUMX
4079 BFD_RELOC_860_LOW3
4080ENUMX
4081 BFD_RELOC_860_LOGOT0
4082ENUMX
4083 BFD_RELOC_860_SPGOT0
4084ENUMX
4085 BFD_RELOC_860_LOGOT1
4086ENUMX
4087 BFD_RELOC_860_SPGOT1
4088ENUMX
4089 BFD_RELOC_860_LOGOTOFF0
4090ENUMX
4091 BFD_RELOC_860_SPGOTOFF0
4092ENUMX
4093 BFD_RELOC_860_LOGOTOFF1
4094ENUMX
4095 BFD_RELOC_860_SPGOTOFF1
4096ENUMX
4097 BFD_RELOC_860_LOGOTOFF2
4098ENUMX
4099 BFD_RELOC_860_LOGOTOFF3
4100ENUMX
4101 BFD_RELOC_860_LOPC
4102ENUMX
4103 BFD_RELOC_860_HIGHADJ
4104ENUMX
4105 BFD_RELOC_860_HAGOT
4106ENUMX
4107 BFD_RELOC_860_HAGOTOFF
4108ENUMX
4109 BFD_RELOC_860_HAPC
4110ENUMX
4111 BFD_RELOC_860_HIGH
4112ENUMX
4113 BFD_RELOC_860_HIGOT
4114ENUMX
4115 BFD_RELOC_860_HIGOTOFF
4116ENUMDOC
4117 Intel i860 Relocations.
4118
b3baf5d0
NC
4119ENUM
4120 BFD_RELOC_OPENRISC_ABS_26
4121ENUMX
4122 BFD_RELOC_OPENRISC_REL_26
4123ENUMDOC
4124 OpenRISC Relocations.
4125
e01b0e69
JR
4126ENUM
4127 BFD_RELOC_H8_DIR16A8
4128ENUMX
4129 BFD_RELOC_H8_DIR16R8
4130ENUMX
4131 BFD_RELOC_H8_DIR24A8
4132ENUMX
4133 BFD_RELOC_H8_DIR24R8
4134ENUMX
4135 BFD_RELOC_H8_DIR32A16
4136ENUMDOC
4137 H8 elf Relocations.
4138
93fbbb04
GK
4139ENUM
4140 BFD_RELOC_XSTORMY16_REL_12
5fd63999
DD
4141ENUMX
4142 BFD_RELOC_XSTORMY16_12
93fbbb04
GK
4143ENUMX
4144 BFD_RELOC_XSTORMY16_24
4145ENUMX
4146 BFD_RELOC_XSTORMY16_FPTR16
4147ENUMDOC
4148 Sony Xstormy16 Relocations.
4149
90ace9e9
JT
4150ENUM
4151 BFD_RELOC_VAX_GLOB_DAT
4152ENUMX
4153 BFD_RELOC_VAX_JMP_SLOT
4154ENUMX
4155 BFD_RELOC_VAX_RELATIVE
4156ENUMDOC
4157 Relocations used by VAX ELF.
2469cfa2
NC
4158
4159ENUM
4160 BFD_RELOC_MSP430_10_PCREL
4161ENUMX
4162 BFD_RELOC_MSP430_16_PCREL
4163ENUMX
4164 BFD_RELOC_MSP430_16
4165ENUMX
4166 BFD_RELOC_MSP430_16_PCREL_BYTE
4167ENUMX
4168 BFD_RELOC_MSP430_16_BYTE
b18c562e
NC
4169ENUMX
4170 BFD_RELOC_MSP430_2X_PCREL
4171ENUMX
4172 BFD_RELOC_MSP430_RL_PCREL
2469cfa2
NC
4173ENUMDOC
4174 msp430 specific relocation codes
90ace9e9 4175
a75473eb
SC
4176ENUM
4177 BFD_RELOC_IQ2000_OFFSET_16
4178ENUMX
4179 BFD_RELOC_IQ2000_OFFSET_21
4180ENUMX
4181 BFD_RELOC_IQ2000_UHI16
4182ENUMDOC
4183 IQ2000 Relocations.
4184
e0001a05
NC
4185ENUM
4186 BFD_RELOC_XTENSA_RTLD
4187ENUMDOC
4188 Special Xtensa relocation used only by PLT entries in ELF shared
4189 objects to indicate that the runtime linker should set the value
4190 to one of its own internal functions or data structures.
4191ENUM
4192 BFD_RELOC_XTENSA_GLOB_DAT
4193ENUMX
4194 BFD_RELOC_XTENSA_JMP_SLOT
4195ENUMX
4196 BFD_RELOC_XTENSA_RELATIVE
4197ENUMDOC
4198 Xtensa relocations for ELF shared objects.
4199ENUM
4200 BFD_RELOC_XTENSA_PLT
4201ENUMDOC
4202 Xtensa relocation used in ELF object files for symbols that may require
4203 PLT entries. Otherwise, this is just a generic 32-bit relocation.
43cd72b9
BW
4204ENUM
4205 BFD_RELOC_XTENSA_DIFF8
4206ENUMX
4207 BFD_RELOC_XTENSA_DIFF16
4208ENUMX
4209 BFD_RELOC_XTENSA_DIFF32
4210ENUMDOC
4211 Xtensa relocations to mark the difference of two local symbols.
4212 These are only needed to support linker relaxation and can be ignored
4213 when not relaxing. The field is set to the value of the difference
4214 assuming no relaxation. The relocation encodes the position of the
4215 first symbol so the linker can determine whether to adjust the field
4216 value.
4217ENUM
4218 BFD_RELOC_XTENSA_SLOT0_OP
4219ENUMX
4220 BFD_RELOC_XTENSA_SLOT1_OP
4221ENUMX
4222 BFD_RELOC_XTENSA_SLOT2_OP
4223ENUMX
4224 BFD_RELOC_XTENSA_SLOT3_OP
4225ENUMX
4226 BFD_RELOC_XTENSA_SLOT4_OP
4227ENUMX
4228 BFD_RELOC_XTENSA_SLOT5_OP
4229ENUMX
4230 BFD_RELOC_XTENSA_SLOT6_OP
4231ENUMX
4232 BFD_RELOC_XTENSA_SLOT7_OP
4233ENUMX
4234 BFD_RELOC_XTENSA_SLOT8_OP
4235ENUMX
4236 BFD_RELOC_XTENSA_SLOT9_OP
4237ENUMX
4238 BFD_RELOC_XTENSA_SLOT10_OP
4239ENUMX
4240 BFD_RELOC_XTENSA_SLOT11_OP
4241ENUMX
4242 BFD_RELOC_XTENSA_SLOT12_OP
4243ENUMX
4244 BFD_RELOC_XTENSA_SLOT13_OP
4245ENUMX
4246 BFD_RELOC_XTENSA_SLOT14_OP
4247ENUMDOC
4248 Generic Xtensa relocations for instruction operands. Only the slot
4249 number is encoded in the relocation. The relocation applies to the
4250 last PC-relative immediate operand, or if there are no PC-relative
4251 immediates, to the last immediate operand.
4252ENUM
4253 BFD_RELOC_XTENSA_SLOT0_ALT
4254ENUMX
4255 BFD_RELOC_XTENSA_SLOT1_ALT
4256ENUMX
4257 BFD_RELOC_XTENSA_SLOT2_ALT
4258ENUMX
4259 BFD_RELOC_XTENSA_SLOT3_ALT
4260ENUMX
4261 BFD_RELOC_XTENSA_SLOT4_ALT
4262ENUMX
4263 BFD_RELOC_XTENSA_SLOT5_ALT
4264ENUMX
4265 BFD_RELOC_XTENSA_SLOT6_ALT
4266ENUMX
4267 BFD_RELOC_XTENSA_SLOT7_ALT
4268ENUMX
4269 BFD_RELOC_XTENSA_SLOT8_ALT
4270ENUMX
4271 BFD_RELOC_XTENSA_SLOT9_ALT
4272ENUMX
4273 BFD_RELOC_XTENSA_SLOT10_ALT
4274ENUMX
4275 BFD_RELOC_XTENSA_SLOT11_ALT
4276ENUMX
4277 BFD_RELOC_XTENSA_SLOT12_ALT
4278ENUMX
4279 BFD_RELOC_XTENSA_SLOT13_ALT
4280ENUMX
4281 BFD_RELOC_XTENSA_SLOT14_ALT
4282ENUMDOC
4283 Alternate Xtensa relocations. Only the slot is encoded in the
4284 relocation. The meaning of these relocations is opcode-specific.
e0001a05
NC
4285ENUM
4286 BFD_RELOC_XTENSA_OP0
4287ENUMX
4288 BFD_RELOC_XTENSA_OP1
4289ENUMX
4290 BFD_RELOC_XTENSA_OP2
4291ENUMDOC
43cd72b9
BW
4292 Xtensa relocations for backward compatibility. These have all been
4293 replaced by BFD_RELOC_XTENSA_SLOT0_OP.
e0001a05
NC
4294ENUM
4295 BFD_RELOC_XTENSA_ASM_EXPAND
4296ENUMDOC
4297 Xtensa relocation to mark that the assembler expanded the
4298 instructions from an original target. The expansion size is
4299 encoded in the reloc size.
4300ENUM
4301 BFD_RELOC_XTENSA_ASM_SIMPLIFY
4302ENUMDOC
4303 Xtensa relocation to mark that the linker should simplify
4304 assembler-expanded instructions. This is commonly used
4305 internally by the linker after analysis of a
4306 BFD_RELOC_XTENSA_ASM_EXPAND.
4307
252b5132
RH
4308ENDSENUM
4309 BFD_RELOC_UNUSED
4310CODE_FRAGMENT
4311.
4312.typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4313*/
4314
252b5132
RH
4315/*
4316FUNCTION
4317 bfd_reloc_type_lookup
4318
4319SYNOPSIS
c58b9523
AM
4320 reloc_howto_type *bfd_reloc_type_lookup
4321 (bfd *abfd, bfd_reloc_code_real_type code);
252b5132
RH
4322
4323DESCRIPTION
4324 Return a pointer to a howto structure which, when
4325 invoked, will perform the relocation @var{code} on data from the
4326 architecture noted.
4327
4328*/
4329
252b5132 4330reloc_howto_type *
c58b9523 4331bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
4332{
4333 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4334}
4335
4336static reloc_howto_type bfd_howto_32 =
b34976b6 4337HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
252b5132 4338
252b5132
RH
4339/*
4340INTERNAL_FUNCTION
4341 bfd_default_reloc_type_lookup
4342
4343SYNOPSIS
4344 reloc_howto_type *bfd_default_reloc_type_lookup
c58b9523 4345 (bfd *abfd, bfd_reloc_code_real_type code);
252b5132
RH
4346
4347DESCRIPTION
4348 Provides a default relocation lookup routine for any architecture.
4349
252b5132
RH
4350*/
4351
4352reloc_howto_type *
c58b9523 4353bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
4354{
4355 switch (code)
4356 {
4357 case BFD_RELOC_CTOR:
4358 /* The type of reloc used in a ctor, which will be as wide as the
4359 address - so either a 64, 32, or 16 bitter. */
4360 switch (bfd_get_arch_info (abfd)->bits_per_address)
4361 {
4362 case 64:
4363 BFD_FAIL ();
4364 case 32:
4365 return &bfd_howto_32;
4366 case 16:
4367 BFD_FAIL ();
4368 default:
4369 BFD_FAIL ();
4370 }
4371 default:
4372 BFD_FAIL ();
4373 }
c58b9523 4374 return NULL;
252b5132
RH
4375}
4376
4377/*
4378FUNCTION
4379 bfd_get_reloc_code_name
4380
4381SYNOPSIS
4382 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4383
4384DESCRIPTION
4385 Provides a printable name for the supplied relocation code.
4386 Useful mainly for printing error messages.
4387*/
4388
4389const char *
c58b9523 4390bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
252b5132 4391{
c58b9523 4392 if (code > BFD_RELOC_UNUSED)
252b5132 4393 return 0;
c58b9523 4394 return bfd_reloc_code_real_names[code];
252b5132
RH
4395}
4396
4397/*
4398INTERNAL_FUNCTION
4399 bfd_generic_relax_section
4400
4401SYNOPSIS
b34976b6 4402 bfd_boolean bfd_generic_relax_section
c58b9523
AM
4403 (bfd *abfd,
4404 asection *section,
4405 struct bfd_link_info *,
4406 bfd_boolean *);
252b5132
RH
4407
4408DESCRIPTION
4409 Provides default handling for relaxing for back ends which
eea6121a 4410 don't do relaxing.
252b5132
RH
4411*/
4412
b34976b6 4413bfd_boolean
c58b9523
AM
4414bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4415 asection *section ATTRIBUTE_UNUSED,
4416 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4417 bfd_boolean *again)
252b5132 4418{
b34976b6
AM
4419 *again = FALSE;
4420 return TRUE;
252b5132
RH
4421}
4422
4423/*
4424INTERNAL_FUNCTION
4425 bfd_generic_gc_sections
4426
4427SYNOPSIS
b34976b6 4428 bfd_boolean bfd_generic_gc_sections
c58b9523 4429 (bfd *, struct bfd_link_info *);
252b5132
RH
4430
4431DESCRIPTION
4432 Provides default handling for relaxing for back ends which
4433 don't do section gc -- i.e., does nothing.
4434*/
4435
b34976b6 4436bfd_boolean
c58b9523
AM
4437bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4438 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
252b5132 4439{
b34976b6 4440 return TRUE;
252b5132
RH
4441}
4442
8550eb6e
JJ
4443/*
4444INTERNAL_FUNCTION
4445 bfd_generic_merge_sections
4446
4447SYNOPSIS
b34976b6 4448 bfd_boolean bfd_generic_merge_sections
c58b9523 4449 (bfd *, struct bfd_link_info *);
8550eb6e
JJ
4450
4451DESCRIPTION
4452 Provides default handling for SEC_MERGE section merging for back ends
4453 which don't have SEC_MERGE support -- i.e., does nothing.
4454*/
4455
b34976b6 4456bfd_boolean
c58b9523
AM
4457bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4458 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
8550eb6e 4459{
b34976b6 4460 return TRUE;
8550eb6e
JJ
4461}
4462
252b5132
RH
4463/*
4464INTERNAL_FUNCTION
4465 bfd_generic_get_relocated_section_contents
4466
4467SYNOPSIS
c58b9523
AM
4468 bfd_byte *bfd_generic_get_relocated_section_contents
4469 (bfd *abfd,
4470 struct bfd_link_info *link_info,
4471 struct bfd_link_order *link_order,
4472 bfd_byte *data,
4473 bfd_boolean relocatable,
4474 asymbol **symbols);
252b5132
RH
4475
4476DESCRIPTION
4477 Provides default handling of relocation effort for back ends
4478 which can't be bothered to do it efficiently.
4479
4480*/
4481
4482bfd_byte *
c58b9523
AM
4483bfd_generic_get_relocated_section_contents (bfd *abfd,
4484 struct bfd_link_info *link_info,
4485 struct bfd_link_order *link_order,
4486 bfd_byte *data,
4487 bfd_boolean relocatable,
4488 asymbol **symbols)
252b5132 4489{
b5f79c76 4490 /* Get enough memory to hold the stuff. */
252b5132
RH
4491 bfd *input_bfd = link_order->u.indirect.section->owner;
4492 asection *input_section = link_order->u.indirect.section;
4493
4494 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4495 arelent **reloc_vector = NULL;
4496 long reloc_count;
eea6121a 4497 bfd_size_type sz;
252b5132
RH
4498
4499 if (reloc_size < 0)
4500 goto error_return;
4501
c58b9523 4502 reloc_vector = bfd_malloc (reloc_size);
252b5132
RH
4503 if (reloc_vector == NULL && reloc_size != 0)
4504 goto error_return;
4505
b5f79c76 4506 /* Read in the section. */
eea6121a
AM
4507 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4508 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
252b5132
RH
4509 goto error_return;
4510
252b5132
RH
4511 reloc_count = bfd_canonicalize_reloc (input_bfd,
4512 input_section,
4513 reloc_vector,
4514 symbols);
4515 if (reloc_count < 0)
4516 goto error_return;
4517
4518 if (reloc_count > 0)
4519 {
4520 arelent **parent;
c58b9523 4521 for (parent = reloc_vector; *parent != NULL; parent++)
252b5132 4522 {
c58b9523 4523 char *error_message = NULL;
252b5132
RH
4524 bfd_reloc_status_type r =
4525 bfd_perform_relocation (input_bfd,
4526 *parent,
c58b9523 4527 data,
252b5132 4528 input_section,
c58b9523 4529 relocatable ? abfd : NULL,
252b5132
RH
4530 &error_message);
4531
1049f94e 4532 if (relocatable)
252b5132
RH
4533 {
4534 asection *os = input_section->output_section;
4535
b5f79c76 4536 /* A partial link, so keep the relocs. */
252b5132
RH
4537 os->orelocation[os->reloc_count] = *parent;
4538 os->reloc_count++;
4539 }
4540
4541 if (r != bfd_reloc_ok)
4542 {
4543 switch (r)
4544 {
4545 case bfd_reloc_undefined:
4546 if (!((*link_info->callbacks->undefined_symbol)
4547 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
5cc7c785 4548 input_bfd, input_section, (*parent)->address,
b34976b6 4549 TRUE)))
252b5132
RH
4550 goto error_return;
4551 break;
4552 case bfd_reloc_dangerous:
c58b9523 4553 BFD_ASSERT (error_message != NULL);
252b5132
RH
4554 if (!((*link_info->callbacks->reloc_dangerous)
4555 (link_info, error_message, input_bfd, input_section,
4556 (*parent)->address)))
4557 goto error_return;
4558 break;
4559 case bfd_reloc_overflow:
4560 if (!((*link_info->callbacks->reloc_overflow)
dfeffb9f
L
4561 (link_info, NULL,
4562 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
252b5132
RH
4563 (*parent)->howto->name, (*parent)->addend,
4564 input_bfd, input_section, (*parent)->address)))
4565 goto error_return;
4566 break;
4567 case bfd_reloc_outofrange:
4568 default:
4569 abort ();
4570 break;
4571 }
4572
4573 }
4574 }
4575 }
4576 if (reloc_vector != NULL)
4577 free (reloc_vector);
4578 return data;
4579
4580error_return:
4581 if (reloc_vector != NULL)
4582 free (reloc_vector);
4583 return NULL;
4584}