* bfd/bin-in.h (bfd_elf32_arm_set_target_relocs): Update prototype.
[deliverable/binutils-gdb.git] / bfd / reloc.c
CommitLineData
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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490bfd_check_overflow (enum complain_overflow how,
491 unsigned int bitsize,
492 unsigned int rightshift,
493 unsigned int addrsize,
494 bfd_vma relocation)
252b5132
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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
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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 {
718#if 1
719 /* For m68k-coff, the addend was being subtracted twice during
720 relocation with -r. Removing the line below this comment
721 fixes that problem; see PR 2953.
722
723However, Ian wrote the following, regarding removing the line below,
724which explains why it is still enabled: --djm
725
726If you put a patch like that into BFD you need to check all the COFF
727linkers. I am fairly certain that patch will break coff-i386 (e.g.,
728SCO); see coff_i386_reloc in coff-i386.c where I worked around the
729problem in a different way. There may very well be a reason that the
730code works as it does.
731
732Hmmm. The first obvious point is that bfd_perform_relocation should
733not have any tests that depend upon the flavour. It's seem like
734entirely the wrong place for such a thing. The second obvious point
735is that the current code ignores the reloc addend when producing
1049f94e 736relocatable output for COFF. That's peculiar. In fact, I really
252b5132
RH
737have no idea what the point of the line you want to remove is.
738
739A typical COFF reloc subtracts the old value of the symbol and adds in
740the new value to the location in the object file (if it's a pc
741relative reloc it adds the difference between the symbol value and the
742location). When relocating we need to preserve that property.
743
744BFD handles this by setting the addend to the negative of the old
745value of the symbol. Unfortunately it handles common symbols in a
746non-standard way (it doesn't subtract the old value) but that's a
747different story (we can't change it without losing backward
748compatibility with old object files) (coff-i386 does subtract the old
749value, to be compatible with existing coff-i386 targets, like SCO).
750
1049f94e
AM
751So everything works fine when not producing relocatable output. When
752we are producing relocatable output, logically we should do exactly
753what we do when not producing relocatable output. Therefore, your
252b5132
RH
754patch is correct. In fact, it should probably always just set
755reloc_entry->addend to 0 for all cases, since it is, in fact, going to
756add the value into the object file. This won't hurt the COFF code,
757which doesn't use the addend; I'm not sure what it will do to other
758formats (the thing to check for would be whether any formats both use
759the addend and set partial_inplace).
760
1049f94e 761When I wanted to make coff-i386 produce relocatable output, I ran
252b5132
RH
762into the problem that you are running into: I wanted to remove that
763line. Rather than risk it, I made the coff-i386 relocs use a special
764function; it's coff_i386_reloc in coff-i386.c. The function
765specifically adds the addend field into the object file, knowing that
766bfd_perform_relocation is not going to. If you remove that line, then
767coff-i386.c will wind up adding the addend field in twice. It's
768trivial to fix; it just needs to be done.
769
770The problem with removing the line is just that it may break some
771working code. With BFD it's hard to be sure of anything. The right
772way to deal with this is simply to build and test at least all the
773supported COFF targets. It should be straightforward if time and disk
774space consuming. For each target:
775 1) build the linker
776 2) generate some executable, and link it using -r (I would
777 probably use paranoia.o and link against newlib/libc.a, which
778 for all the supported targets would be available in
779 /usr/cygnus/progressive/H-host/target/lib/libc.a).
780 3) make the change to reloc.c
781 4) rebuild the linker
782 5) repeat step 2
783 6) if the resulting object files are the same, you have at least
784 made it no worse
785 7) if they are different you have to figure out which version is
786 right
787*/
788 relocation -= reloc_entry->addend;
789#endif
790 reloc_entry->addend = 0;
791 }
792 else
793 {
794 reloc_entry->addend = relocation;
795 }
796 }
797 }
798 else
799 {
800 reloc_entry->addend = 0;
801 }
802
803 /* FIXME: This overflow checking is incomplete, because the value
804 might have overflowed before we get here. For a correct check we
805 need to compute the value in a size larger than bitsize, but we
806 can't reasonably do that for a reloc the same size as a host
807 machine word.
808 FIXME: We should also do overflow checking on the result after
809 adding in the value contained in the object file. */
810 if (howto->complain_on_overflow != complain_overflow_dont
811 && flag == bfd_reloc_ok)
812 flag = bfd_check_overflow (howto->complain_on_overflow,
813 howto->bitsize,
814 howto->rightshift,
815 bfd_arch_bits_per_address (abfd),
816 relocation);
817
b5f79c76
NC
818 /* Either we are relocating all the way, or we don't want to apply
819 the relocation to the reloc entry (probably because there isn't
820 any room in the output format to describe addends to relocs). */
252b5132
RH
821
822 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
823 (OSF version 1.3, compiler version 3.11). It miscompiles the
824 following program:
825
826 struct str
827 {
828 unsigned int i0;
829 } s = { 0 };
830
831 int
832 main ()
833 {
834 unsigned long x;
835
836 x = 0x100000000;
837 x <<= (unsigned long) s.i0;
838 if (x == 0)
839 printf ("failed\n");
840 else
841 printf ("succeeded (%lx)\n", x);
842 }
843 */
844
845 relocation >>= (bfd_vma) howto->rightshift;
846
b5f79c76 847 /* Shift everything up to where it's going to be used. */
252b5132
RH
848 relocation <<= (bfd_vma) howto->bitpos;
849
b5f79c76 850 /* Wait for the day when all have the mask in them. */
252b5132
RH
851
852 /* What we do:
853 i instruction to be left alone
854 o offset within instruction
855 r relocation offset to apply
856 S src mask
857 D dst mask
858 N ~dst mask
859 A part 1
860 B part 2
861 R result
862
863 Do this:
88b6bae0
AM
864 (( i i i i i o o o o o from bfd_get<size>
865 and S S S S S) to get the size offset we want
866 + r r r r r r r r r r) to get the final value to place
252b5132
RH
867 and D D D D D to chop to right size
868 -----------------------
88b6bae0 869 = A A A A A
252b5132 870 And this:
88b6bae0
AM
871 ( i i i i i o o o o o from bfd_get<size>
872 and N N N N N ) get instruction
252b5132 873 -----------------------
88b6bae0 874 = B B B B B
252b5132
RH
875
876 And then:
88b6bae0
AM
877 ( B B B B B
878 or A A A A A)
252b5132 879 -----------------------
88b6bae0 880 = R R R R R R R R R R put into bfd_put<size>
252b5132
RH
881 */
882
883#define DOIT(x) \
884 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
885
886 switch (howto->size)
887 {
888 case 0:
889 {
9a968f43 890 char x = bfd_get_8 (abfd, (char *) data + octets);
252b5132 891 DOIT (x);
9a968f43 892 bfd_put_8 (abfd, x, (unsigned char *) data + octets);
252b5132
RH
893 }
894 break;
895
896 case 1:
897 {
9a968f43 898 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
252b5132 899 DOIT (x);
dc810e39 900 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
252b5132
RH
901 }
902 break;
903 case 2:
904 {
9a968f43 905 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
252b5132 906 DOIT (x);
dc810e39 907 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
908 }
909 break;
910 case -2:
911 {
9a968f43 912 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
252b5132
RH
913 relocation = -relocation;
914 DOIT (x);
dc810e39 915 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
916 }
917 break;
918
919 case -1:
920 {
9a968f43 921 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
252b5132
RH
922 relocation = -relocation;
923 DOIT (x);
dc810e39 924 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
252b5132
RH
925 }
926 break;
927
928 case 3:
929 /* Do nothing */
930 break;
931
932 case 4:
933#ifdef BFD64
934 {
9a968f43 935 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
252b5132 936 DOIT (x);
9a968f43 937 bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
252b5132
RH
938 }
939#else
940 abort ();
941#endif
942 break;
943 default:
944 return bfd_reloc_other;
945 }
946
947 return flag;
948}
949
950/*
951FUNCTION
952 bfd_install_relocation
953
954SYNOPSIS
c58b9523
AM
955 bfd_reloc_status_type bfd_install_relocation
956 (bfd *abfd,
957 arelent *reloc_entry,
958 void *data, bfd_vma data_start,
959 asection *input_section,
960 char **error_message);
252b5132
RH
961
962DESCRIPTION
963 This looks remarkably like <<bfd_perform_relocation>>, except it
964 does not expect that the section contents have been filled in.
965 I.e., it's suitable for use when creating, rather than applying
966 a relocation.
967
968 For now, this function should be considered reserved for the
969 assembler.
252b5132
RH
970*/
971
252b5132 972bfd_reloc_status_type
c58b9523
AM
973bfd_install_relocation (bfd *abfd,
974 arelent *reloc_entry,
975 void *data_start,
976 bfd_vma data_start_offset,
977 asection *input_section,
978 char **error_message)
252b5132
RH
979{
980 bfd_vma relocation;
981 bfd_reloc_status_type flag = bfd_reloc_ok;
9a968f43 982 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
252b5132
RH
983 bfd_vma output_base = 0;
984 reloc_howto_type *howto = reloc_entry->howto;
985 asection *reloc_target_output_section;
986 asymbol *symbol;
987 bfd_byte *data;
988
989 symbol = *(reloc_entry->sym_ptr_ptr);
990 if (bfd_is_abs_section (symbol->section))
991 {
992 reloc_entry->address += input_section->output_offset;
993 return bfd_reloc_ok;
994 }
995
996 /* If there is a function supplied to handle this relocation type,
997 call it. It'll return `bfd_reloc_continue' if further processing
998 can be done. */
999 if (howto->special_function)
1000 {
1001 bfd_reloc_status_type cont;
88b6bae0 1002
252b5132
RH
1003 /* XXX - The special_function calls haven't been fixed up to deal
1004 with creating new relocations and section contents. */
1005 cont = howto->special_function (abfd, reloc_entry, symbol,
1006 /* XXX - Non-portable! */
1007 ((bfd_byte *) data_start
1008 - data_start_offset),
1009 input_section, abfd, error_message);
1010 if (cont != bfd_reloc_continue)
1011 return cont;
1012 }
1013
1014 /* Is the address of the relocation really within the section? */
07515404 1015 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
252b5132
RH
1016 return bfd_reloc_outofrange;
1017
7dee875e 1018 /* Work out which section the relocation is targeted at and the
252b5132
RH
1019 initial relocation command value. */
1020
1021 /* Get symbol value. (Common symbols are special.) */
1022 if (bfd_is_com_section (symbol->section))
1023 relocation = 0;
1024 else
1025 relocation = symbol->value;
1026
1027 reloc_target_output_section = symbol->section->output_section;
1028
1029 /* Convert input-section-relative symbol value to absolute. */
82e51918 1030 if (! howto->partial_inplace)
252b5132
RH
1031 output_base = 0;
1032 else
1033 output_base = reloc_target_output_section->vma;
1034
1035 relocation += output_base + symbol->section->output_offset;
1036
1037 /* Add in supplied addend. */
1038 relocation += reloc_entry->addend;
1039
1040 /* Here the variable relocation holds the final address of the
1041 symbol we are relocating against, plus any addend. */
1042
82e51918 1043 if (howto->pc_relative)
252b5132
RH
1044 {
1045 /* This is a PC relative relocation. We want to set RELOCATION
1046 to the distance between the address of the symbol and the
1047 location. RELOCATION is already the address of the symbol.
1048
1049 We start by subtracting the address of the section containing
1050 the location.
1051
1052 If pcrel_offset is set, we must further subtract the position
1053 of the location within the section. Some targets arrange for
1054 the addend to be the negative of the position of the location
1055 within the section; for example, i386-aout does this. For
b34976b6 1056 i386-aout, pcrel_offset is FALSE. Some other targets do not
252b5132 1057 include the position of the location; for example, m88kbcs,
b34976b6 1058 or ELF. For those targets, pcrel_offset is TRUE.
252b5132 1059
1049f94e 1060 If we are producing relocatable output, then we must ensure
252b5132 1061 that this reloc will be correctly computed when the final
b34976b6 1062 relocation is done. If pcrel_offset is FALSE we want to wind
252b5132
RH
1063 up with the negative of the location within the section,
1064 which means we must adjust the existing addend by the change
b34976b6 1065 in the location within the section. If pcrel_offset is TRUE
252b5132
RH
1066 we do not want to adjust the existing addend at all.
1067
1068 FIXME: This seems logical to me, but for the case of
1049f94e 1069 producing relocatable output it is not what the code
252b5132
RH
1070 actually does. I don't want to change it, because it seems
1071 far too likely that something will break. */
1072
1073 relocation -=
1074 input_section->output_section->vma + input_section->output_offset;
1075
82e51918 1076 if (howto->pcrel_offset && howto->partial_inplace)
252b5132
RH
1077 relocation -= reloc_entry->address;
1078 }
1079
82e51918 1080 if (! howto->partial_inplace)
252b5132
RH
1081 {
1082 /* This is a partial relocation, and we want to apply the relocation
1083 to the reloc entry rather than the raw data. Modify the reloc
1084 inplace to reflect what we now know. */
1085 reloc_entry->addend = relocation;
1086 reloc_entry->address += input_section->output_offset;
1087 return flag;
1088 }
1089 else
1090 {
1091 /* This is a partial relocation, but inplace, so modify the
1092 reloc record a bit.
1093
1094 If we've relocated with a symbol with a section, change
1095 into a ref to the section belonging to the symbol. */
252b5132
RH
1096 reloc_entry->address += input_section->output_offset;
1097
1098 /* WTF?? */
1099 if (abfd->xvec->flavour == bfd_target_coff_flavour
252b5132
RH
1100 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1101 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1102 {
1103#if 1
1104/* For m68k-coff, the addend was being subtracted twice during
1105 relocation with -r. Removing the line below this comment
1106 fixes that problem; see PR 2953.
1107
1108However, Ian wrote the following, regarding removing the line below,
1109which explains why it is still enabled: --djm
1110
1111If you put a patch like that into BFD you need to check all the COFF
1112linkers. I am fairly certain that patch will break coff-i386 (e.g.,
1113SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1114problem in a different way. There may very well be a reason that the
1115code works as it does.
1116
1117Hmmm. The first obvious point is that bfd_install_relocation should
1118not have any tests that depend upon the flavour. It's seem like
1119entirely the wrong place for such a thing. The second obvious point
1120is that the current code ignores the reloc addend when producing
1049f94e 1121relocatable output for COFF. That's peculiar. In fact, I really
252b5132
RH
1122have no idea what the point of the line you want to remove is.
1123
1124A typical COFF reloc subtracts the old value of the symbol and adds in
1125the new value to the location in the object file (if it's a pc
1126relative reloc it adds the difference between the symbol value and the
1127location). When relocating we need to preserve that property.
1128
1129BFD handles this by setting the addend to the negative of the old
1130value of the symbol. Unfortunately it handles common symbols in a
1131non-standard way (it doesn't subtract the old value) but that's a
1132different story (we can't change it without losing backward
1133compatibility with old object files) (coff-i386 does subtract the old
1134value, to be compatible with existing coff-i386 targets, like SCO).
1135
1049f94e
AM
1136So everything works fine when not producing relocatable output. When
1137we are producing relocatable output, logically we should do exactly
1138what we do when not producing relocatable output. Therefore, your
252b5132
RH
1139patch is correct. In fact, it should probably always just set
1140reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1141add the value into the object file. This won't hurt the COFF code,
1142which doesn't use the addend; I'm not sure what it will do to other
1143formats (the thing to check for would be whether any formats both use
1144the addend and set partial_inplace).
1145
1049f94e 1146When I wanted to make coff-i386 produce relocatable output, I ran
252b5132
RH
1147into the problem that you are running into: I wanted to remove that
1148line. Rather than risk it, I made the coff-i386 relocs use a special
1149function; it's coff_i386_reloc in coff-i386.c. The function
1150specifically adds the addend field into the object file, knowing that
1151bfd_install_relocation is not going to. If you remove that line, then
1152coff-i386.c will wind up adding the addend field in twice. It's
1153trivial to fix; it just needs to be done.
1154
1155The problem with removing the line is just that it may break some
1156working code. With BFD it's hard to be sure of anything. The right
1157way to deal with this is simply to build and test at least all the
1158supported COFF targets. It should be straightforward if time and disk
1159space consuming. For each target:
1160 1) build the linker
1161 2) generate some executable, and link it using -r (I would
1162 probably use paranoia.o and link against newlib/libc.a, which
1163 for all the supported targets would be available in
1164 /usr/cygnus/progressive/H-host/target/lib/libc.a).
1165 3) make the change to reloc.c
1166 4) rebuild the linker
1167 5) repeat step 2
1168 6) if the resulting object files are the same, you have at least
1169 made it no worse
1170 7) if they are different you have to figure out which version is
b5f79c76 1171 right. */
252b5132
RH
1172 relocation -= reloc_entry->addend;
1173#endif
1174 reloc_entry->addend = 0;
1175 }
1176 else
1177 {
1178 reloc_entry->addend = relocation;
1179 }
1180 }
1181
1182 /* FIXME: This overflow checking is incomplete, because the value
1183 might have overflowed before we get here. For a correct check we
1184 need to compute the value in a size larger than bitsize, but we
1185 can't reasonably do that for a reloc the same size as a host
1186 machine word.
1187 FIXME: We should also do overflow checking on the result after
1188 adding in the value contained in the object file. */
1189 if (howto->complain_on_overflow != complain_overflow_dont)
1190 flag = bfd_check_overflow (howto->complain_on_overflow,
1191 howto->bitsize,
1192 howto->rightshift,
1193 bfd_arch_bits_per_address (abfd),
1194 relocation);
1195
b5f79c76
NC
1196 /* Either we are relocating all the way, or we don't want to apply
1197 the relocation to the reloc entry (probably because there isn't
1198 any room in the output format to describe addends to relocs). */
252b5132
RH
1199
1200 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1201 (OSF version 1.3, compiler version 3.11). It miscompiles the
1202 following program:
1203
1204 struct str
1205 {
1206 unsigned int i0;
1207 } s = { 0 };
1208
1209 int
1210 main ()
1211 {
1212 unsigned long x;
1213
1214 x = 0x100000000;
1215 x <<= (unsigned long) s.i0;
1216 if (x == 0)
1217 printf ("failed\n");
1218 else
1219 printf ("succeeded (%lx)\n", x);
1220 }
1221 */
1222
1223 relocation >>= (bfd_vma) howto->rightshift;
1224
b5f79c76 1225 /* Shift everything up to where it's going to be used. */
252b5132
RH
1226 relocation <<= (bfd_vma) howto->bitpos;
1227
b5f79c76 1228 /* Wait for the day when all have the mask in them. */
252b5132
RH
1229
1230 /* What we do:
1231 i instruction to be left alone
1232 o offset within instruction
1233 r relocation offset to apply
1234 S src mask
1235 D dst mask
1236 N ~dst mask
1237 A part 1
1238 B part 2
1239 R result
1240
1241 Do this:
88b6bae0
AM
1242 (( i i i i i o o o o o from bfd_get<size>
1243 and S S S S S) to get the size offset we want
1244 + r r r r r r r r r r) to get the final value to place
252b5132
RH
1245 and D D D D D to chop to right size
1246 -----------------------
88b6bae0 1247 = A A A A A
252b5132 1248 And this:
88b6bae0
AM
1249 ( i i i i i o o o o o from bfd_get<size>
1250 and N N N N N ) get instruction
252b5132 1251 -----------------------
88b6bae0 1252 = B B B B B
252b5132
RH
1253
1254 And then:
88b6bae0
AM
1255 ( B B B B B
1256 or A A A A A)
252b5132 1257 -----------------------
88b6bae0 1258 = R R R R R R R R R R put into bfd_put<size>
252b5132
RH
1259 */
1260
1261#define DOIT(x) \
1262 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
1263
9a968f43 1264 data = (bfd_byte *) data_start + (octets - data_start_offset);
252b5132
RH
1265
1266 switch (howto->size)
1267 {
1268 case 0:
1269 {
c58b9523 1270 char x = bfd_get_8 (abfd, data);
252b5132 1271 DOIT (x);
c58b9523 1272 bfd_put_8 (abfd, x, data);
252b5132
RH
1273 }
1274 break;
1275
1276 case 1:
1277 {
c58b9523 1278 short x = bfd_get_16 (abfd, data);
252b5132 1279 DOIT (x);
c58b9523 1280 bfd_put_16 (abfd, (bfd_vma) x, data);
252b5132
RH
1281 }
1282 break;
1283 case 2:
1284 {
c58b9523 1285 long x = bfd_get_32 (abfd, data);
252b5132 1286 DOIT (x);
c58b9523 1287 bfd_put_32 (abfd, (bfd_vma) x, data);
252b5132
RH
1288 }
1289 break;
1290 case -2:
1291 {
c58b9523 1292 long x = bfd_get_32 (abfd, data);
252b5132
RH
1293 relocation = -relocation;
1294 DOIT (x);
c58b9523 1295 bfd_put_32 (abfd, (bfd_vma) x, data);
252b5132
RH
1296 }
1297 break;
1298
1299 case 3:
1300 /* Do nothing */
1301 break;
1302
1303 case 4:
1304 {
c58b9523 1305 bfd_vma x = bfd_get_64 (abfd, data);
252b5132 1306 DOIT (x);
c58b9523 1307 bfd_put_64 (abfd, x, data);
252b5132
RH
1308 }
1309 break;
1310 default:
1311 return bfd_reloc_other;
1312 }
1313
1314 return flag;
1315}
1316
1317/* This relocation routine is used by some of the backend linkers.
1318 They do not construct asymbol or arelent structures, so there is no
1319 reason for them to use bfd_perform_relocation. Also,
1320 bfd_perform_relocation is so hacked up it is easier to write a new
1321 function than to try to deal with it.
1322
1323 This routine does a final relocation. Whether it is useful for a
1049f94e 1324 relocatable link depends upon how the object format defines
252b5132
RH
1325 relocations.
1326
1327 FIXME: This routine ignores any special_function in the HOWTO,
1328 since the existing special_function values have been written for
1329 bfd_perform_relocation.
1330
1331 HOWTO is the reloc howto information.
1332 INPUT_BFD is the BFD which the reloc applies to.
1333 INPUT_SECTION is the section which the reloc applies to.
1334 CONTENTS is the contents of the section.
1335 ADDRESS is the address of the reloc within INPUT_SECTION.
1336 VALUE is the value of the symbol the reloc refers to.
1337 ADDEND is the addend of the reloc. */
1338
1339bfd_reloc_status_type
c58b9523
AM
1340_bfd_final_link_relocate (reloc_howto_type *howto,
1341 bfd *input_bfd,
1342 asection *input_section,
1343 bfd_byte *contents,
1344 bfd_vma address,
1345 bfd_vma value,
1346 bfd_vma addend)
252b5132
RH
1347{
1348 bfd_vma relocation;
1349
1350 /* Sanity check the address. */
07515404 1351 if (address > bfd_get_section_limit (input_bfd, input_section))
252b5132
RH
1352 return bfd_reloc_outofrange;
1353
1354 /* This function assumes that we are dealing with a basic relocation
1355 against a symbol. We want to compute the value of the symbol to
1356 relocate to. This is just VALUE, the value of the symbol, plus
1357 ADDEND, any addend associated with the reloc. */
1358 relocation = value + addend;
1359
1360 /* If the relocation is PC relative, we want to set RELOCATION to
1361 the distance between the symbol (currently in RELOCATION) and the
1362 location we are relocating. Some targets (e.g., i386-aout)
1363 arrange for the contents of the section to be the negative of the
1364 offset of the location within the section; for such targets
b34976b6 1365 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
252b5132 1366 simply leave the contents of the section as zero; for such
b34976b6 1367 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
252b5132
RH
1368 need to subtract out the offset of the location within the
1369 section (which is just ADDRESS). */
1370 if (howto->pc_relative)
1371 {
1372 relocation -= (input_section->output_section->vma
1373 + input_section->output_offset);
1374 if (howto->pcrel_offset)
1375 relocation -= address;
1376 }
1377
1378 return _bfd_relocate_contents (howto, input_bfd, relocation,
1379 contents + address);
1380}
1381
1382/* Relocate a given location using a given value and howto. */
1383
1384bfd_reloc_status_type
c58b9523
AM
1385_bfd_relocate_contents (reloc_howto_type *howto,
1386 bfd *input_bfd,
1387 bfd_vma relocation,
1388 bfd_byte *location)
252b5132
RH
1389{
1390 int size;
7442e600 1391 bfd_vma x = 0;
d5afc56e 1392 bfd_reloc_status_type flag;
252b5132
RH
1393 unsigned int rightshift = howto->rightshift;
1394 unsigned int bitpos = howto->bitpos;
1395
1396 /* If the size is negative, negate RELOCATION. This isn't very
1397 general. */
1398 if (howto->size < 0)
1399 relocation = -relocation;
1400
1401 /* Get the value we are going to relocate. */
1402 size = bfd_get_reloc_size (howto);
1403 switch (size)
1404 {
1405 default:
1406 case 0:
1407 abort ();
1408 case 1:
1409 x = bfd_get_8 (input_bfd, location);
1410 break;
1411 case 2:
1412 x = bfd_get_16 (input_bfd, location);
1413 break;
1414 case 4:
1415 x = bfd_get_32 (input_bfd, location);
1416 break;
1417 case 8:
1418#ifdef BFD64
1419 x = bfd_get_64 (input_bfd, location);
1420#else
1421 abort ();
1422#endif
1423 break;
1424 }
1425
1426 /* Check for overflow. FIXME: We may drop bits during the addition
1427 which we don't check for. We must either check at every single
1428 operation, which would be tedious, or we must do the computations
1429 in a type larger than bfd_vma, which would be inefficient. */
d5afc56e 1430 flag = bfd_reloc_ok;
252b5132
RH
1431 if (howto->complain_on_overflow != complain_overflow_dont)
1432 {
1433 bfd_vma addrmask, fieldmask, signmask, ss;
1434 bfd_vma a, b, sum;
1435
1436 /* Get the values to be added together. For signed and unsigned
1437 relocations, we assume that all values should be truncated to
1438 the size of an address. For bitfields, all the bits matter.
1439 See also bfd_check_overflow. */
1440 fieldmask = N_ONES (howto->bitsize);
1441 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1442 a = relocation;
1443 b = x & howto->src_mask;
1444
1445 switch (howto->complain_on_overflow)
1446 {
1447 case complain_overflow_signed:
1448 a = (a & addrmask) >> rightshift;
1449
1450 /* If any sign bits are set, all sign bits must be set.
1451 That is, A must be a valid negative address after
1452 shifting. */
1453 signmask = ~ (fieldmask >> 1);
1454 ss = a & signmask;
1455 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
d5afc56e 1456 flag = bfd_reloc_overflow;
252b5132
RH
1457
1458 /* We only need this next bit of code if the sign bit of B
1459 is below the sign bit of A. This would only happen if
1460 SRC_MASK had fewer bits than BITSIZE. Note that if
1461 SRC_MASK has more bits than BITSIZE, we can get into
1462 trouble; we would need to verify that B is in range, as
1463 we do for A above. */
1464 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
8a4ac871
AM
1465
1466 /* Set all the bits above the sign bit. */
1467 b = (b ^ signmask) - signmask;
252b5132
RH
1468
1469 b = (b & addrmask) >> bitpos;
1470
1471 /* Now we can do the addition. */
1472 sum = a + b;
1473
1474 /* See if the result has the correct sign. Bits above the
1475 sign bit are junk now; ignore them. If the sum is
1476 positive, make sure we did not have all negative inputs;
1477 if the sum is negative, make sure we did not have all
1478 positive inputs. The test below looks only at the sign
1479 bits, and it really just
1480 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1481 */
1482 signmask = (fieldmask >> 1) + 1;
1483 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
d5afc56e 1484 flag = bfd_reloc_overflow;
252b5132
RH
1485
1486 break;
1487
1488 case complain_overflow_unsigned:
1489 /* Checking for an unsigned overflow is relatively easy:
1490 trim the addresses and add, and trim the result as well.
1491 Overflow is normally indicated when the result does not
1492 fit in the field. However, we also need to consider the
1493 case when, e.g., fieldmask is 0x7fffffff or smaller, an
1494 input is 0x80000000, and bfd_vma is only 32 bits; then we
1495 will get sum == 0, but there is an overflow, since the
1496 inputs did not fit in the field. Instead of doing a
1497 separate test, we can check for this by or-ing in the
1498 operands when testing for the sum overflowing its final
1499 field. */
1500 a = (a & addrmask) >> rightshift;
1501 b = (b & addrmask) >> bitpos;
1502 sum = (a + b) & addrmask;
1503 if ((a | b | sum) & ~ fieldmask)
d5afc56e 1504 flag = bfd_reloc_overflow;
252b5132
RH
1505
1506 break;
1507
1508 case complain_overflow_bitfield:
d5afc56e 1509 /* Much like the signed check, but for a field one bit
8a4ac871 1510 wider, and no trimming inputs with addrmask. We allow a
d5afc56e
AM
1511 bitfield to represent numbers in the range -2**n to
1512 2**n-1, where n is the number of bits in the field.
1513 Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1514 overflow, which is exactly what we want. */
252b5132 1515 a >>= rightshift;
252b5132 1516
d5afc56e
AM
1517 signmask = ~ fieldmask;
1518 ss = a & signmask;
1519 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1520 flag = bfd_reloc_overflow;
252b5132 1521
d5afc56e 1522 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
8a4ac871 1523 b = (b ^ signmask) - signmask;
252b5132 1524
d5afc56e 1525 b >>= bitpos;
44257b8b 1526
252b5132 1527 sum = a + b;
d5afc56e 1528
8a4ac871
AM
1529 /* We mask with addrmask here to explicitly allow an address
1530 wrap-around. The Linux kernel relies on it, and it is
1531 the only way to write assembler code which can run when
1532 loaded at a location 0x80000000 away from the location at
1533 which it is linked. */
d5afc56e 1534 signmask = fieldmask + 1;
8a4ac871 1535 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
d5afc56e 1536 flag = bfd_reloc_overflow;
252b5132
RH
1537
1538 break;
1539
1540 default:
1541 abort ();
1542 }
1543 }
1544
1545 /* Put RELOCATION in the right bits. */
1546 relocation >>= (bfd_vma) rightshift;
1547 relocation <<= (bfd_vma) bitpos;
1548
1549 /* Add RELOCATION to the right bits of X. */
1550 x = ((x & ~howto->dst_mask)
1551 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1552
1553 /* Put the relocated value back in the object file. */
1554 switch (size)
1555 {
1556 default:
1557 case 0:
1558 abort ();
1559 case 1:
1560 bfd_put_8 (input_bfd, x, location);
1561 break;
1562 case 2:
1563 bfd_put_16 (input_bfd, x, location);
1564 break;
1565 case 4:
1566 bfd_put_32 (input_bfd, x, location);
1567 break;
1568 case 8:
1569#ifdef BFD64
1570 bfd_put_64 (input_bfd, x, location);
1571#else
1572 abort ();
1573#endif
1574 break;
1575 }
1576
d5afc56e 1577 return flag;
252b5132
RH
1578}
1579
1580/*
1581DOCDD
1582INODE
1583 howto manager, , typedef arelent, Relocations
1584
1585SECTION
1586 The howto manager
1587
1588 When an application wants to create a relocation, but doesn't
1589 know what the target machine might call it, it can find out by
1590 using this bit of code.
1591
1592*/
1593
1594/*
1595TYPEDEF
1596 bfd_reloc_code_type
1597
1598DESCRIPTION
1599 The insides of a reloc code. The idea is that, eventually, there
1600 will be one enumerator for every type of relocation we ever do.
1601 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1602 return a howto pointer.
1603
1604 This does mean that the application must determine the correct
1605 enumerator value; you can't get a howto pointer from a random set
1606 of attributes.
1607
1608SENUM
1609 bfd_reloc_code_real
1610
1611ENUM
1612 BFD_RELOC_64
1613ENUMX
1614 BFD_RELOC_32
1615ENUMX
1616 BFD_RELOC_26
1617ENUMX
1618 BFD_RELOC_24
1619ENUMX
1620 BFD_RELOC_16
1621ENUMX
1622 BFD_RELOC_14
1623ENUMX
1624 BFD_RELOC_8
1625ENUMDOC
1626 Basic absolute relocations of N bits.
1627
1628ENUM
1629 BFD_RELOC_64_PCREL
1630ENUMX
1631 BFD_RELOC_32_PCREL
1632ENUMX
1633 BFD_RELOC_24_PCREL
1634ENUMX
1635 BFD_RELOC_16_PCREL
1636ENUMX
1637 BFD_RELOC_12_PCREL
1638ENUMX
1639 BFD_RELOC_8_PCREL
1640ENUMDOC
1641 PC-relative relocations. Sometimes these are relative to the address
1642of the relocation itself; sometimes they are relative to the start of
1643the section containing the relocation. It depends on the specific target.
1644
1645The 24-bit relocation is used in some Intel 960 configurations.
1646
6482c264
NC
1647ENUM
1648 BFD_RELOC_32_SECREL
1649ENUMDOC
1650 Section relative relocations. Some targets need this for DWARF2.
1651
252b5132
RH
1652ENUM
1653 BFD_RELOC_32_GOT_PCREL
1654ENUMX
1655 BFD_RELOC_16_GOT_PCREL
1656ENUMX
1657 BFD_RELOC_8_GOT_PCREL
1658ENUMX
1659 BFD_RELOC_32_GOTOFF
1660ENUMX
1661 BFD_RELOC_16_GOTOFF
1662ENUMX
1663 BFD_RELOC_LO16_GOTOFF
1664ENUMX
1665 BFD_RELOC_HI16_GOTOFF
1666ENUMX
1667 BFD_RELOC_HI16_S_GOTOFF
1668ENUMX
1669 BFD_RELOC_8_GOTOFF
5bd4f169
AM
1670ENUMX
1671 BFD_RELOC_64_PLT_PCREL
252b5132
RH
1672ENUMX
1673 BFD_RELOC_32_PLT_PCREL
1674ENUMX
1675 BFD_RELOC_24_PLT_PCREL
1676ENUMX
1677 BFD_RELOC_16_PLT_PCREL
1678ENUMX
1679 BFD_RELOC_8_PLT_PCREL
5bd4f169
AM
1680ENUMX
1681 BFD_RELOC_64_PLTOFF
252b5132
RH
1682ENUMX
1683 BFD_RELOC_32_PLTOFF
1684ENUMX
1685 BFD_RELOC_16_PLTOFF
1686ENUMX
1687 BFD_RELOC_LO16_PLTOFF
1688ENUMX
1689 BFD_RELOC_HI16_PLTOFF
1690ENUMX
1691 BFD_RELOC_HI16_S_PLTOFF
1692ENUMX
1693 BFD_RELOC_8_PLTOFF
1694ENUMDOC
1695 For ELF.
1696
1697ENUM
1698 BFD_RELOC_68K_GLOB_DAT
1699ENUMX
1700 BFD_RELOC_68K_JMP_SLOT
1701ENUMX
1702 BFD_RELOC_68K_RELATIVE
1703ENUMDOC
1704 Relocations used by 68K ELF.
1705
1706ENUM
1707 BFD_RELOC_32_BASEREL
1708ENUMX
1709 BFD_RELOC_16_BASEREL
1710ENUMX
1711 BFD_RELOC_LO16_BASEREL
1712ENUMX
1713 BFD_RELOC_HI16_BASEREL
1714ENUMX
1715 BFD_RELOC_HI16_S_BASEREL
1716ENUMX
1717 BFD_RELOC_8_BASEREL
1718ENUMX
1719 BFD_RELOC_RVA
1720ENUMDOC
1721 Linkage-table relative.
1722
1723ENUM
1724 BFD_RELOC_8_FFnn
1725ENUMDOC
1726 Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1727
1728ENUM
1729 BFD_RELOC_32_PCREL_S2
1730ENUMX
1731 BFD_RELOC_16_PCREL_S2
1732ENUMX
1733 BFD_RELOC_23_PCREL_S2
1734ENUMDOC
1735 These PC-relative relocations are stored as word displacements --
1736i.e., byte displacements shifted right two bits. The 30-bit word
1737displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1738SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1739signed 16-bit displacement is used on the MIPS, and the 23-bit
1740displacement is used on the Alpha.
1741
1742ENUM
1743 BFD_RELOC_HI22
1744ENUMX
1745 BFD_RELOC_LO10
1746ENUMDOC
1747 High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1748the target word. These are used on the SPARC.
1749
1750ENUM
1751 BFD_RELOC_GPREL16
1752ENUMX
1753 BFD_RELOC_GPREL32
1754ENUMDOC
1755 For systems that allocate a Global Pointer register, these are
1756displacements off that register. These relocation types are
1757handled specially, because the value the register will have is
1758decided relatively late.
1759
252b5132
RH
1760ENUM
1761 BFD_RELOC_I960_CALLJ
1762ENUMDOC
1763 Reloc types used for i960/b.out.
1764
1765ENUM
1766 BFD_RELOC_NONE
1767ENUMX
1768 BFD_RELOC_SPARC_WDISP22
1769ENUMX
1770 BFD_RELOC_SPARC22
1771ENUMX
1772 BFD_RELOC_SPARC13
1773ENUMX
1774 BFD_RELOC_SPARC_GOT10
1775ENUMX
1776 BFD_RELOC_SPARC_GOT13
1777ENUMX
1778 BFD_RELOC_SPARC_GOT22
1779ENUMX
1780 BFD_RELOC_SPARC_PC10
1781ENUMX
1782 BFD_RELOC_SPARC_PC22
1783ENUMX
1784 BFD_RELOC_SPARC_WPLT30
1785ENUMX
1786 BFD_RELOC_SPARC_COPY
1787ENUMX
1788 BFD_RELOC_SPARC_GLOB_DAT
1789ENUMX
1790 BFD_RELOC_SPARC_JMP_SLOT
1791ENUMX
1792 BFD_RELOC_SPARC_RELATIVE
0f2712ed
NC
1793ENUMX
1794 BFD_RELOC_SPARC_UA16
252b5132
RH
1795ENUMX
1796 BFD_RELOC_SPARC_UA32
0f2712ed
NC
1797ENUMX
1798 BFD_RELOC_SPARC_UA64
252b5132
RH
1799ENUMDOC
1800 SPARC ELF relocations. There is probably some overlap with other
1801 relocation types already defined.
1802
1803ENUM
1804 BFD_RELOC_SPARC_BASE13
1805ENUMX
1806 BFD_RELOC_SPARC_BASE22
1807ENUMDOC
1808 I think these are specific to SPARC a.out (e.g., Sun 4).
1809
1810ENUMEQ
1811 BFD_RELOC_SPARC_64
1812 BFD_RELOC_64
1813ENUMX
1814 BFD_RELOC_SPARC_10
1815ENUMX
1816 BFD_RELOC_SPARC_11
1817ENUMX
1818 BFD_RELOC_SPARC_OLO10
1819ENUMX
1820 BFD_RELOC_SPARC_HH22
1821ENUMX
1822 BFD_RELOC_SPARC_HM10
1823ENUMX
1824 BFD_RELOC_SPARC_LM22
1825ENUMX
1826 BFD_RELOC_SPARC_PC_HH22
1827ENUMX
1828 BFD_RELOC_SPARC_PC_HM10
1829ENUMX
1830 BFD_RELOC_SPARC_PC_LM22
1831ENUMX
1832 BFD_RELOC_SPARC_WDISP16
1833ENUMX
1834 BFD_RELOC_SPARC_WDISP19
1835ENUMX
1836 BFD_RELOC_SPARC_7
1837ENUMX
1838 BFD_RELOC_SPARC_6
1839ENUMX
1840 BFD_RELOC_SPARC_5
1841ENUMEQX
1842 BFD_RELOC_SPARC_DISP64
1843 BFD_RELOC_64_PCREL
bd5e6e7e
JJ
1844ENUMX
1845 BFD_RELOC_SPARC_PLT32
252b5132
RH
1846ENUMX
1847 BFD_RELOC_SPARC_PLT64
1848ENUMX
1849 BFD_RELOC_SPARC_HIX22
1850ENUMX
1851 BFD_RELOC_SPARC_LOX10
1852ENUMX
1853 BFD_RELOC_SPARC_H44
1854ENUMX
1855 BFD_RELOC_SPARC_M44
1856ENUMX
1857 BFD_RELOC_SPARC_L44
1858ENUMX
1859 BFD_RELOC_SPARC_REGISTER
1860ENUMDOC
1861 SPARC64 relocations
1862
1863ENUM
1864 BFD_RELOC_SPARC_REV32
1865ENUMDOC
1866 SPARC little endian relocation
b9734f35
JJ
1867ENUM
1868 BFD_RELOC_SPARC_TLS_GD_HI22
1869ENUMX
1870 BFD_RELOC_SPARC_TLS_GD_LO10
1871ENUMX
1872 BFD_RELOC_SPARC_TLS_GD_ADD
1873ENUMX
1874 BFD_RELOC_SPARC_TLS_GD_CALL
1875ENUMX
1876 BFD_RELOC_SPARC_TLS_LDM_HI22
1877ENUMX
1878 BFD_RELOC_SPARC_TLS_LDM_LO10
1879ENUMX
1880 BFD_RELOC_SPARC_TLS_LDM_ADD
1881ENUMX
1882 BFD_RELOC_SPARC_TLS_LDM_CALL
1883ENUMX
1884 BFD_RELOC_SPARC_TLS_LDO_HIX22
1885ENUMX
1886 BFD_RELOC_SPARC_TLS_LDO_LOX10
1887ENUMX
1888 BFD_RELOC_SPARC_TLS_LDO_ADD
1889ENUMX
1890 BFD_RELOC_SPARC_TLS_IE_HI22
1891ENUMX
1892 BFD_RELOC_SPARC_TLS_IE_LO10
1893ENUMX
1894 BFD_RELOC_SPARC_TLS_IE_LD
1895ENUMX
1896 BFD_RELOC_SPARC_TLS_IE_LDX
1897ENUMX
1898 BFD_RELOC_SPARC_TLS_IE_ADD
1899ENUMX
1900 BFD_RELOC_SPARC_TLS_LE_HIX22
1901ENUMX
1902 BFD_RELOC_SPARC_TLS_LE_LOX10
1903ENUMX
1904 BFD_RELOC_SPARC_TLS_DTPMOD32
1905ENUMX
1906 BFD_RELOC_SPARC_TLS_DTPMOD64
1907ENUMX
1908 BFD_RELOC_SPARC_TLS_DTPOFF32
1909ENUMX
1910 BFD_RELOC_SPARC_TLS_DTPOFF64
1911ENUMX
1912 BFD_RELOC_SPARC_TLS_TPOFF32
1913ENUMX
1914 BFD_RELOC_SPARC_TLS_TPOFF64
1915ENUMDOC
1916 SPARC TLS relocations
252b5132
RH
1917
1918ENUM
1919 BFD_RELOC_ALPHA_GPDISP_HI16
1920ENUMDOC
1921 Alpha ECOFF and ELF relocations. Some of these treat the symbol or
1922 "addend" in some special way.
1923 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1924 writing; when reading, it will be the absolute section symbol. The
1925 addend is the displacement in bytes of the "lda" instruction from
1926 the "ldah" instruction (which is at the address of this reloc).
1927ENUM
1928 BFD_RELOC_ALPHA_GPDISP_LO16
1929ENUMDOC
1930 For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1931 with GPDISP_HI16 relocs. The addend is ignored when writing the
1932 relocations out, and is filled in with the file's GP value on
1933 reading, for convenience.
1934
1935ENUM
1936 BFD_RELOC_ALPHA_GPDISP
1937ENUMDOC
1938 The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1939 relocation except that there is no accompanying GPDISP_LO16
1940 relocation.
1941
1942ENUM
1943 BFD_RELOC_ALPHA_LITERAL
1944ENUMX
1945 BFD_RELOC_ALPHA_ELF_LITERAL
1946ENUMX
1947 BFD_RELOC_ALPHA_LITUSE
1948ENUMDOC
1949 The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1950 the assembler turns it into a LDQ instruction to load the address of
1951 the symbol, and then fills in a register in the real instruction.
1952
1953 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1954 section symbol. The addend is ignored when writing, but is filled
1955 in with the file's GP value on reading, for convenience, as with the
1956 GPDISP_LO16 reloc.
1957
1958 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1959 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1960 but it generates output not based on the position within the .got
1961 section, but relative to the GP value chosen for the file during the
1962 final link stage.
1963
1964 The LITUSE reloc, on the instruction using the loaded address, gives
1965 information to the linker that it might be able to use to optimize
1966 away some literal section references. The symbol is ignored (read
1967 as the absolute section symbol), and the "addend" indicates the type
1968 of instruction using the register:
1969 1 - "memory" fmt insn
1970 2 - byte-manipulation (byte offset reg)
1971 3 - jsr (target of branch)
1972
252b5132
RH
1973ENUM
1974 BFD_RELOC_ALPHA_HINT
1975ENUMDOC
1976 The HINT relocation indicates a value that should be filled into the
1977 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1978 prediction logic which may be provided on some processors.
1979
1980ENUM
1981 BFD_RELOC_ALPHA_LINKAGE
1982ENUMDOC
1983 The LINKAGE relocation outputs a linkage pair in the object file,
1984 which is filled by the linker.
1985
1986ENUM
1987 BFD_RELOC_ALPHA_CODEADDR
1988ENUMDOC
1989 The CODEADDR relocation outputs a STO_CA in the object file,
1990 which is filled by the linker.
1991
dfe57ca0
RH
1992ENUM
1993 BFD_RELOC_ALPHA_GPREL_HI16
1994ENUMX
1995 BFD_RELOC_ALPHA_GPREL_LO16
1996ENUMDOC
dc810e39
AM
1997 The GPREL_HI/LO relocations together form a 32-bit offset from the
1998 GP register.
dfe57ca0 1999
7793f4d0
RH
2000ENUM
2001 BFD_RELOC_ALPHA_BRSGP
2002ENUMDOC
2003 Like BFD_RELOC_23_PCREL_S2, except that the source and target must
b34976b6 2004 share a common GP, and the target address is adjusted for
7793f4d0
RH
2005 STO_ALPHA_STD_GPLOAD.
2006
3765b1be
RH
2007ENUM
2008 BFD_RELOC_ALPHA_TLSGD
2009ENUMX
2010 BFD_RELOC_ALPHA_TLSLDM
2011ENUMX
2012 BFD_RELOC_ALPHA_DTPMOD64
2013ENUMX
2014 BFD_RELOC_ALPHA_GOTDTPREL16
2015ENUMX
2016 BFD_RELOC_ALPHA_DTPREL64
2017ENUMX
2018 BFD_RELOC_ALPHA_DTPREL_HI16
2019ENUMX
2020 BFD_RELOC_ALPHA_DTPREL_LO16
2021ENUMX
2022 BFD_RELOC_ALPHA_DTPREL16
2023ENUMX
2024 BFD_RELOC_ALPHA_GOTTPREL16
2025ENUMX
2026 BFD_RELOC_ALPHA_TPREL64
2027ENUMX
2028 BFD_RELOC_ALPHA_TPREL_HI16
2029ENUMX
2030 BFD_RELOC_ALPHA_TPREL_LO16
2031ENUMX
2032 BFD_RELOC_ALPHA_TPREL16
2033ENUMDOC
2034 Alpha thread-local storage relocations.
2035
252b5132
RH
2036ENUM
2037 BFD_RELOC_MIPS_JMP
2038ENUMDOC
2039 Bits 27..2 of the relocation address shifted right 2 bits;
2040 simple reloc otherwise.
2041
2042ENUM
2043 BFD_RELOC_MIPS16_JMP
2044ENUMDOC
2045 The MIPS16 jump instruction.
2046
2047ENUM
2048 BFD_RELOC_MIPS16_GPREL
2049ENUMDOC
2050 MIPS16 GP relative reloc.
2051
2052ENUM
2053 BFD_RELOC_HI16
2054ENUMDOC
2055 High 16 bits of 32-bit value; simple reloc.
2056ENUM
2057 BFD_RELOC_HI16_S
2058ENUMDOC
2059 High 16 bits of 32-bit value but the low 16 bits will be sign
2060 extended and added to form the final result. If the low 16
2061 bits form a negative number, we need to add one to the high value
2062 to compensate for the borrow when the low bits are added.
2063ENUM
2064 BFD_RELOC_LO16
2065ENUMDOC
2066 Low 16 bits.
0b25d3e6 2067
252b5132
RH
2068ENUM
2069 BFD_RELOC_MIPS_LITERAL
2070ENUMDOC
2071 Relocation against a MIPS literal section.
2072
2073ENUM
2074 BFD_RELOC_MIPS_GOT16
2075ENUMX
2076 BFD_RELOC_MIPS_CALL16
252b5132
RH
2077ENUMX
2078 BFD_RELOC_MIPS_GOT_HI16
2079ENUMX
2080 BFD_RELOC_MIPS_GOT_LO16
2081ENUMX
2082 BFD_RELOC_MIPS_CALL_HI16
2083ENUMX
2084 BFD_RELOC_MIPS_CALL_LO16
3f830999
MM
2085ENUMX
2086 BFD_RELOC_MIPS_SUB
2087ENUMX
2088 BFD_RELOC_MIPS_GOT_PAGE
2089ENUMX
2090 BFD_RELOC_MIPS_GOT_OFST
2091ENUMX
2092 BFD_RELOC_MIPS_GOT_DISP
c2feb664
NC
2093ENUMX
2094 BFD_RELOC_MIPS_SHIFT5
2095ENUMX
2096 BFD_RELOC_MIPS_SHIFT6
2097ENUMX
2098 BFD_RELOC_MIPS_INSERT_A
2099ENUMX
2100 BFD_RELOC_MIPS_INSERT_B
2101ENUMX
2102 BFD_RELOC_MIPS_DELETE
2103ENUMX
2104 BFD_RELOC_MIPS_HIGHEST
2105ENUMX
2106 BFD_RELOC_MIPS_HIGHER
2107ENUMX
2108 BFD_RELOC_MIPS_SCN_DISP
2109ENUMX
2110 BFD_RELOC_MIPS_REL16
2111ENUMX
2112 BFD_RELOC_MIPS_RELGOT
2113ENUMX
2114 BFD_RELOC_MIPS_JALR
980491e6
MR
2115ENUMDOC
2116 MIPS ELF relocations.
252b5132 2117COMMENT
980491e6 2118
4e5ba5b7
DB
2119ENUM
2120 BFD_RELOC_FRV_LABEL16
2121ENUMX
2122 BFD_RELOC_FRV_LABEL24
2123ENUMX
2124 BFD_RELOC_FRV_LO16
2125ENUMX
2126 BFD_RELOC_FRV_HI16
2127ENUMX
2128 BFD_RELOC_FRV_GPREL12
2129ENUMX
2130 BFD_RELOC_FRV_GPRELU12
2131ENUMX
2132 BFD_RELOC_FRV_GPREL32
2133ENUMX
2134 BFD_RELOC_FRV_GPRELHI
2135ENUMX
2136 BFD_RELOC_FRV_GPRELLO
51532845
AO
2137ENUMX
2138 BFD_RELOC_FRV_GOT12
2139ENUMX
2140 BFD_RELOC_FRV_GOTHI
2141ENUMX
2142 BFD_RELOC_FRV_GOTLO
2143ENUMX
2144 BFD_RELOC_FRV_FUNCDESC
2145ENUMX
2146 BFD_RELOC_FRV_FUNCDESC_GOT12
2147ENUMX
2148 BFD_RELOC_FRV_FUNCDESC_GOTHI
2149ENUMX
2150 BFD_RELOC_FRV_FUNCDESC_GOTLO
2151ENUMX
2152 BFD_RELOC_FRV_FUNCDESC_VALUE
2153ENUMX
2154 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2155ENUMX
2156 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2157ENUMX
2158 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2159ENUMX
2160 BFD_RELOC_FRV_GOTOFF12
2161ENUMX
2162 BFD_RELOC_FRV_GOTOFFHI
2163ENUMX
2164 BFD_RELOC_FRV_GOTOFFLO
90219bd0
AO
2165ENUMX
2166 BFD_RELOC_FRV_GETTLSOFF
2167ENUMX
2168 BFD_RELOC_FRV_TLSDESC_VALUE
2169ENUMX
2170 BFD_RELOC_FRV_GOTTLSDESC12
2171ENUMX
2172 BFD_RELOC_FRV_GOTTLSDESCHI
2173ENUMX
2174 BFD_RELOC_FRV_GOTTLSDESCLO
2175ENUMX
2176 BFD_RELOC_FRV_TLSMOFF12
2177ENUMX
2178 BFD_RELOC_FRV_TLSMOFFHI
2179ENUMX
2180 BFD_RELOC_FRV_TLSMOFFLO
2181ENUMX
2182 BFD_RELOC_FRV_GOTTLSOFF12
2183ENUMX
2184 BFD_RELOC_FRV_GOTTLSOFFHI
2185ENUMX
2186 BFD_RELOC_FRV_GOTTLSOFFLO
2187ENUMX
2188 BFD_RELOC_FRV_TLSOFF
2189ENUMX
2190 BFD_RELOC_FRV_TLSDESC_RELAX
2191ENUMX
2192 BFD_RELOC_FRV_GETTLSOFF_RELAX
2193ENUMX
2194 BFD_RELOC_FRV_TLSOFF_RELAX
2195ENUMX
2196 BFD_RELOC_FRV_TLSMOFF
4e5ba5b7
DB
2197ENUMDOC
2198 Fujitsu Frv Relocations.
2199COMMENT
252b5132 2200
03a12831
AO
2201ENUM
2202 BFD_RELOC_MN10300_GOTOFF24
2203ENUMDOC
2204 This is a 24bit GOT-relative reloc for the mn10300.
2205ENUM
2206 BFD_RELOC_MN10300_GOT32
2207ENUMDOC
2208 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2209 in the instruction.
2210ENUM
2211 BFD_RELOC_MN10300_GOT24
2212ENUMDOC
2213 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2214 in the instruction.
2215ENUM
2216 BFD_RELOC_MN10300_GOT16
2217ENUMDOC
2218 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2219 in the instruction.
2220ENUM
2221 BFD_RELOC_MN10300_COPY
2222ENUMDOC
2223 Copy symbol at runtime.
2224ENUM
2225 BFD_RELOC_MN10300_GLOB_DAT
2226ENUMDOC
2227 Create GOT entry.
2228ENUM
2229 BFD_RELOC_MN10300_JMP_SLOT
2230ENUMDOC
2231 Create PLT entry.
2232ENUM
2233 BFD_RELOC_MN10300_RELATIVE
2234ENUMDOC
2235 Adjust by program base.
2236COMMENT
252b5132
RH
2237
2238ENUM
2239 BFD_RELOC_386_GOT32
2240ENUMX
2241 BFD_RELOC_386_PLT32
2242ENUMX
2243 BFD_RELOC_386_COPY
2244ENUMX
2245 BFD_RELOC_386_GLOB_DAT
2246ENUMX
2247 BFD_RELOC_386_JUMP_SLOT
2248ENUMX
2249 BFD_RELOC_386_RELATIVE
2250ENUMX
2251 BFD_RELOC_386_GOTOFF
2252ENUMX
2253 BFD_RELOC_386_GOTPC
37e55690
JJ
2254ENUMX
2255 BFD_RELOC_386_TLS_TPOFF
2256ENUMX
2257 BFD_RELOC_386_TLS_IE
2258ENUMX
2259 BFD_RELOC_386_TLS_GOTIE
13ae64f3
JJ
2260ENUMX
2261 BFD_RELOC_386_TLS_LE
2262ENUMX
2263 BFD_RELOC_386_TLS_GD
2264ENUMX
2265 BFD_RELOC_386_TLS_LDM
2266ENUMX
2267 BFD_RELOC_386_TLS_LDO_32
2268ENUMX
2269 BFD_RELOC_386_TLS_IE_32
2270ENUMX
2271 BFD_RELOC_386_TLS_LE_32
2272ENUMX
2273 BFD_RELOC_386_TLS_DTPMOD32
2274ENUMX
2275 BFD_RELOC_386_TLS_DTPOFF32
2276ENUMX
2277 BFD_RELOC_386_TLS_TPOFF32
252b5132
RH
2278ENUMDOC
2279 i386/elf relocations
2280
8d88c4ca
NC
2281ENUM
2282 BFD_RELOC_X86_64_GOT32
2283ENUMX
2284 BFD_RELOC_X86_64_PLT32
2285ENUMX
2286 BFD_RELOC_X86_64_COPY
2287ENUMX
2288 BFD_RELOC_X86_64_GLOB_DAT
2289ENUMX
2290 BFD_RELOC_X86_64_JUMP_SLOT
2291ENUMX
2292 BFD_RELOC_X86_64_RELATIVE
2293ENUMX
2294 BFD_RELOC_X86_64_GOTPCREL
2295ENUMX
2296 BFD_RELOC_X86_64_32S
bffbf940
JJ
2297ENUMX
2298 BFD_RELOC_X86_64_DTPMOD64
2299ENUMX
2300 BFD_RELOC_X86_64_DTPOFF64
2301ENUMX
2302 BFD_RELOC_X86_64_TPOFF64
2303ENUMX
2304 BFD_RELOC_X86_64_TLSGD
2305ENUMX
2306 BFD_RELOC_X86_64_TLSLD
2307ENUMX
2308 BFD_RELOC_X86_64_DTPOFF32
2309ENUMX
2310 BFD_RELOC_X86_64_GOTTPOFF
2311ENUMX
2312 BFD_RELOC_X86_64_TPOFF32
8d88c4ca
NC
2313ENUMDOC
2314 x86-64/elf relocations
2315
252b5132
RH
2316ENUM
2317 BFD_RELOC_NS32K_IMM_8
2318ENUMX
2319 BFD_RELOC_NS32K_IMM_16
2320ENUMX
2321 BFD_RELOC_NS32K_IMM_32
2322ENUMX
2323 BFD_RELOC_NS32K_IMM_8_PCREL
2324ENUMX
2325 BFD_RELOC_NS32K_IMM_16_PCREL
2326ENUMX
2327 BFD_RELOC_NS32K_IMM_32_PCREL
2328ENUMX
2329 BFD_RELOC_NS32K_DISP_8
2330ENUMX
2331 BFD_RELOC_NS32K_DISP_16
2332ENUMX
2333 BFD_RELOC_NS32K_DISP_32
2334ENUMX
2335 BFD_RELOC_NS32K_DISP_8_PCREL
2336ENUMX
2337 BFD_RELOC_NS32K_DISP_16_PCREL
2338ENUMX
2339 BFD_RELOC_NS32K_DISP_32_PCREL
2340ENUMDOC
2341 ns32k relocations
2342
e135f41b
NC
2343ENUM
2344 BFD_RELOC_PDP11_DISP_8_PCREL
2345ENUMX
2346 BFD_RELOC_PDP11_DISP_6_PCREL
2347ENUMDOC
2348 PDP11 relocations
2349
0bcb993b
ILT
2350ENUM
2351 BFD_RELOC_PJ_CODE_HI16
2352ENUMX
2353 BFD_RELOC_PJ_CODE_LO16
2354ENUMX
2355 BFD_RELOC_PJ_CODE_DIR16
2356ENUMX
2357 BFD_RELOC_PJ_CODE_DIR32
2358ENUMX
2359 BFD_RELOC_PJ_CODE_REL16
2360ENUMX
2361 BFD_RELOC_PJ_CODE_REL32
2362ENUMDOC
2363 Picojava relocs. Not all of these appear in object files.
88b6bae0 2364
252b5132
RH
2365ENUM
2366 BFD_RELOC_PPC_B26
2367ENUMX
2368 BFD_RELOC_PPC_BA26
2369ENUMX
2370 BFD_RELOC_PPC_TOC16
2371ENUMX
2372 BFD_RELOC_PPC_B16
2373ENUMX
2374 BFD_RELOC_PPC_B16_BRTAKEN
2375ENUMX
2376 BFD_RELOC_PPC_B16_BRNTAKEN
2377ENUMX
2378 BFD_RELOC_PPC_BA16
2379ENUMX
2380 BFD_RELOC_PPC_BA16_BRTAKEN
2381ENUMX
2382 BFD_RELOC_PPC_BA16_BRNTAKEN
2383ENUMX
2384 BFD_RELOC_PPC_COPY
2385ENUMX
2386 BFD_RELOC_PPC_GLOB_DAT
2387ENUMX
2388 BFD_RELOC_PPC_JMP_SLOT
2389ENUMX
2390 BFD_RELOC_PPC_RELATIVE
2391ENUMX
2392 BFD_RELOC_PPC_LOCAL24PC
2393ENUMX
2394 BFD_RELOC_PPC_EMB_NADDR32
2395ENUMX
2396 BFD_RELOC_PPC_EMB_NADDR16
2397ENUMX
2398 BFD_RELOC_PPC_EMB_NADDR16_LO
2399ENUMX
2400 BFD_RELOC_PPC_EMB_NADDR16_HI
2401ENUMX
2402 BFD_RELOC_PPC_EMB_NADDR16_HA
2403ENUMX
2404 BFD_RELOC_PPC_EMB_SDAI16
2405ENUMX
2406 BFD_RELOC_PPC_EMB_SDA2I16
2407ENUMX
2408 BFD_RELOC_PPC_EMB_SDA2REL
2409ENUMX
2410 BFD_RELOC_PPC_EMB_SDA21
2411ENUMX
2412 BFD_RELOC_PPC_EMB_MRKREF
2413ENUMX
2414 BFD_RELOC_PPC_EMB_RELSEC16
2415ENUMX
2416 BFD_RELOC_PPC_EMB_RELST_LO
2417ENUMX
2418 BFD_RELOC_PPC_EMB_RELST_HI
2419ENUMX
2420 BFD_RELOC_PPC_EMB_RELST_HA
2421ENUMX
2422 BFD_RELOC_PPC_EMB_BIT_FLD
2423ENUMX
2424 BFD_RELOC_PPC_EMB_RELSDA
5bd4f169
AM
2425ENUMX
2426 BFD_RELOC_PPC64_HIGHER
2427ENUMX
2428 BFD_RELOC_PPC64_HIGHER_S
2429ENUMX
2430 BFD_RELOC_PPC64_HIGHEST
2431ENUMX
2432 BFD_RELOC_PPC64_HIGHEST_S
2433ENUMX
2434 BFD_RELOC_PPC64_TOC16_LO
2435ENUMX
2436 BFD_RELOC_PPC64_TOC16_HI
2437ENUMX
2438 BFD_RELOC_PPC64_TOC16_HA
2439ENUMX
2440 BFD_RELOC_PPC64_TOC
2441ENUMX
dc810e39 2442 BFD_RELOC_PPC64_PLTGOT16
5bd4f169
AM
2443ENUMX
2444 BFD_RELOC_PPC64_PLTGOT16_LO
2445ENUMX
2446 BFD_RELOC_PPC64_PLTGOT16_HI
2447ENUMX
2448 BFD_RELOC_PPC64_PLTGOT16_HA
2449ENUMX
2450 BFD_RELOC_PPC64_ADDR16_DS
2451ENUMX
2452 BFD_RELOC_PPC64_ADDR16_LO_DS
2453ENUMX
2454 BFD_RELOC_PPC64_GOT16_DS
2455ENUMX
2456 BFD_RELOC_PPC64_GOT16_LO_DS
2457ENUMX
2458 BFD_RELOC_PPC64_PLT16_LO_DS
2459ENUMX
2460 BFD_RELOC_PPC64_SECTOFF_DS
2461ENUMX
2462 BFD_RELOC_PPC64_SECTOFF_LO_DS
2463ENUMX
2464 BFD_RELOC_PPC64_TOC16_DS
2465ENUMX
2466 BFD_RELOC_PPC64_TOC16_LO_DS
2467ENUMX
2468 BFD_RELOC_PPC64_PLTGOT16_DS
2469ENUMX
2470 BFD_RELOC_PPC64_PLTGOT16_LO_DS
252b5132
RH
2471ENUMDOC
2472 Power(rs6000) and PowerPC relocations.
411e1bfb
AM
2473
2474ENUM
2475 BFD_RELOC_PPC_TLS
2476ENUMX
2477 BFD_RELOC_PPC_DTPMOD
2478ENUMX
2479 BFD_RELOC_PPC_TPREL16
2480ENUMX
2481 BFD_RELOC_PPC_TPREL16_LO
2482ENUMX
2483 BFD_RELOC_PPC_TPREL16_HI
2484ENUMX
2485 BFD_RELOC_PPC_TPREL16_HA
2486ENUMX
2487 BFD_RELOC_PPC_TPREL
2488ENUMX
2489 BFD_RELOC_PPC_DTPREL16
2490ENUMX
2491 BFD_RELOC_PPC_DTPREL16_LO
2492ENUMX
2493 BFD_RELOC_PPC_DTPREL16_HI
2494ENUMX
2495 BFD_RELOC_PPC_DTPREL16_HA
2496ENUMX
2497 BFD_RELOC_PPC_DTPREL
2498ENUMX
2499 BFD_RELOC_PPC_GOT_TLSGD16
2500ENUMX
2501 BFD_RELOC_PPC_GOT_TLSGD16_LO
2502ENUMX
2503 BFD_RELOC_PPC_GOT_TLSGD16_HI
2504ENUMX
2505 BFD_RELOC_PPC_GOT_TLSGD16_HA
2506ENUMX
2507 BFD_RELOC_PPC_GOT_TLSLD16
2508ENUMX
2509 BFD_RELOC_PPC_GOT_TLSLD16_LO
2510ENUMX
2511 BFD_RELOC_PPC_GOT_TLSLD16_HI
2512ENUMX
2513 BFD_RELOC_PPC_GOT_TLSLD16_HA
2514ENUMX
2515 BFD_RELOC_PPC_GOT_TPREL16
2516ENUMX
2517 BFD_RELOC_PPC_GOT_TPREL16_LO
2518ENUMX
2519 BFD_RELOC_PPC_GOT_TPREL16_HI
2520ENUMX
2521 BFD_RELOC_PPC_GOT_TPREL16_HA
2522ENUMX
2523 BFD_RELOC_PPC_GOT_DTPREL16
2524ENUMX
2525 BFD_RELOC_PPC_GOT_DTPREL16_LO
2526ENUMX
2527 BFD_RELOC_PPC_GOT_DTPREL16_HI
2528ENUMX
2529 BFD_RELOC_PPC_GOT_DTPREL16_HA
2530ENUMX
2531 BFD_RELOC_PPC64_TPREL16_DS
2532ENUMX
2533 BFD_RELOC_PPC64_TPREL16_LO_DS
2534ENUMX
2535 BFD_RELOC_PPC64_TPREL16_HIGHER
2536ENUMX
2537 BFD_RELOC_PPC64_TPREL16_HIGHERA
2538ENUMX
2539 BFD_RELOC_PPC64_TPREL16_HIGHEST
2540ENUMX
2541 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2542ENUMX
2543 BFD_RELOC_PPC64_DTPREL16_DS
2544ENUMX
2545 BFD_RELOC_PPC64_DTPREL16_LO_DS
2546ENUMX
2547 BFD_RELOC_PPC64_DTPREL16_HIGHER
2548ENUMX
2549 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2550ENUMX
2551 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2552ENUMX
2553 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2554ENUMDOC
2555 PowerPC and PowerPC64 thread-local storage relocations.
252b5132 2556
5b93d8bb
AM
2557ENUM
2558 BFD_RELOC_I370_D12
2559ENUMDOC
2560 IBM 370/390 relocations
2561
252b5132
RH
2562ENUM
2563 BFD_RELOC_CTOR
2564ENUMDOC
7dee875e 2565 The type of reloc used to build a constructor table - at the moment
252b5132
RH
2566 probably a 32 bit wide absolute relocation, but the target can choose.
2567 It generally does map to one of the other relocation types.
2568
2569ENUM
2570 BFD_RELOC_ARM_PCREL_BRANCH
2571ENUMDOC
2572 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2573 not stored in the instruction.
dfc5f959
NC
2574ENUM
2575 BFD_RELOC_ARM_PCREL_BLX
2576ENUMDOC
2577 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2578 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2579 field in the instruction.
2580ENUM
2581 BFD_RELOC_THUMB_PCREL_BLX
2582ENUMDOC
2583 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2584 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2585 field in the instruction.
252b5132
RH
2586ENUM
2587 BFD_RELOC_ARM_IMMEDIATE
752149a0
NC
2588ENUMX
2589 BFD_RELOC_ARM_ADRL_IMMEDIATE
252b5132
RH
2590ENUMX
2591 BFD_RELOC_ARM_OFFSET_IMM
2592ENUMX
2593 BFD_RELOC_ARM_SHIFT_IMM
0dd132b6
NC
2594ENUMX
2595 BFD_RELOC_ARM_SMI
252b5132
RH
2596ENUMX
2597 BFD_RELOC_ARM_SWI
2598ENUMX
2599 BFD_RELOC_ARM_MULTI
2600ENUMX
2601 BFD_RELOC_ARM_CP_OFF_IMM
e16bb312
NC
2602ENUMX
2603 BFD_RELOC_ARM_CP_OFF_IMM_S2
252b5132
RH
2604ENUMX
2605 BFD_RELOC_ARM_ADR_IMM
2606ENUMX
2607 BFD_RELOC_ARM_LDR_IMM
2608ENUMX
2609 BFD_RELOC_ARM_LITERAL
2610ENUMX
2611 BFD_RELOC_ARM_IN_POOL
2612ENUMX
2613 BFD_RELOC_ARM_OFFSET_IMM8
2614ENUMX
2615 BFD_RELOC_ARM_HWLITERAL
2616ENUMX
2617 BFD_RELOC_ARM_THUMB_ADD
2618ENUMX
2619 BFD_RELOC_ARM_THUMB_IMM
2620ENUMX
2621 BFD_RELOC_ARM_THUMB_SHIFT
2622ENUMX
2623 BFD_RELOC_ARM_THUMB_OFFSET
2624ENUMX
2625 BFD_RELOC_ARM_GOT12
2626ENUMX
2627 BFD_RELOC_ARM_GOT32
2628ENUMX
2629 BFD_RELOC_ARM_JUMP_SLOT
2630ENUMX
2631 BFD_RELOC_ARM_COPY
2632ENUMX
2633 BFD_RELOC_ARM_GLOB_DAT
2634ENUMX
2635 BFD_RELOC_ARM_PLT32
2636ENUMX
2637 BFD_RELOC_ARM_RELATIVE
2638ENUMX
2639 BFD_RELOC_ARM_GOTOFF
2640ENUMX
2641 BFD_RELOC_ARM_GOTPC
2642ENUMDOC
2643 These relocs are only used within the ARM assembler. They are not
2644 (at present) written to any object files.
db6579d4 2645ENUM
9c504268 2646 BFD_RELOC_ARM_TARGET1
db6579d4
PB
2647ENUMDOC
2648 Pc-relative or absolute relocation depending on target. Used for
2649 entries in .init_array sections.
2650ENUM
2651 BFD_RELOC_ARM_ROSEGREL32
2652ENUMDOC
2653 Read-only segment base relative address.
2654ENUM
2655 BFD_RELOC_ARM_SBREL32
2656ENUMDOC
2657 Data segment base relative address.
eb043451
PB
2658ENUM
2659 BFD_RELOC_ARM_TARGET2
2660ENUMDOC
2661 This reloc is used for References to RTTI dta from exception handling
2662 tables. The actual definition depends on the target. It may be a
2663 pc-relative or some form of GOT-indirect relocation.
2664ENUM
2665 BFD_RELOC_ARM_PREL31
2666ENUMDOC
2667 31-bit PC relative address.
252b5132
RH
2668
2669ENUM
2670 BFD_RELOC_SH_PCDISP8BY2
2671ENUMX
2672 BFD_RELOC_SH_PCDISP12BY2
1d70c7fb
AO
2673ENUMX
2674 BFD_RELOC_SH_IMM3
2675ENUMX
2676 BFD_RELOC_SH_IMM3U
2677ENUMX
2678 BFD_RELOC_SH_DISP12
2679ENUMX
2680 BFD_RELOC_SH_DISP12BY2
2681ENUMX
2682 BFD_RELOC_SH_DISP12BY4
2683ENUMX
2684 BFD_RELOC_SH_DISP12BY8
2685ENUMX
2686 BFD_RELOC_SH_DISP20
2687ENUMX
2688 BFD_RELOC_SH_DISP20BY8
252b5132
RH
2689ENUMX
2690 BFD_RELOC_SH_IMM4
2691ENUMX
2692 BFD_RELOC_SH_IMM4BY2
2693ENUMX
2694 BFD_RELOC_SH_IMM4BY4
2695ENUMX
2696 BFD_RELOC_SH_IMM8
2697ENUMX
2698 BFD_RELOC_SH_IMM8BY2
2699ENUMX
2700 BFD_RELOC_SH_IMM8BY4
2701ENUMX
2702 BFD_RELOC_SH_PCRELIMM8BY2
2703ENUMX
2704 BFD_RELOC_SH_PCRELIMM8BY4
2705ENUMX
2706 BFD_RELOC_SH_SWITCH16
2707ENUMX
2708 BFD_RELOC_SH_SWITCH32
2709ENUMX
2710 BFD_RELOC_SH_USES
2711ENUMX
2712 BFD_RELOC_SH_COUNT
2713ENUMX
2714 BFD_RELOC_SH_ALIGN
2715ENUMX
2716 BFD_RELOC_SH_CODE
2717ENUMX
2718 BFD_RELOC_SH_DATA
2719ENUMX
2720 BFD_RELOC_SH_LABEL
015551fc
JR
2721ENUMX
2722 BFD_RELOC_SH_LOOP_START
2723ENUMX
2724 BFD_RELOC_SH_LOOP_END
3d96075c
L
2725ENUMX
2726 BFD_RELOC_SH_COPY
2727ENUMX
2728 BFD_RELOC_SH_GLOB_DAT
2729ENUMX
2730 BFD_RELOC_SH_JMP_SLOT
2731ENUMX
2732 BFD_RELOC_SH_RELATIVE
2733ENUMX
2734 BFD_RELOC_SH_GOTPC
eb1e0e80
NC
2735ENUMX
2736 BFD_RELOC_SH_GOT_LOW16
2737ENUMX
2738 BFD_RELOC_SH_GOT_MEDLOW16
2739ENUMX
2740 BFD_RELOC_SH_GOT_MEDHI16
2741ENUMX
2742 BFD_RELOC_SH_GOT_HI16
2743ENUMX
2744 BFD_RELOC_SH_GOTPLT_LOW16
2745ENUMX
2746 BFD_RELOC_SH_GOTPLT_MEDLOW16
2747ENUMX
2748 BFD_RELOC_SH_GOTPLT_MEDHI16
2749ENUMX
2750 BFD_RELOC_SH_GOTPLT_HI16
2751ENUMX
2752 BFD_RELOC_SH_PLT_LOW16
2753ENUMX
2754 BFD_RELOC_SH_PLT_MEDLOW16
2755ENUMX
2756 BFD_RELOC_SH_PLT_MEDHI16
2757ENUMX
2758 BFD_RELOC_SH_PLT_HI16
2759ENUMX
2760 BFD_RELOC_SH_GOTOFF_LOW16
2761ENUMX
2762 BFD_RELOC_SH_GOTOFF_MEDLOW16
2763ENUMX
2764 BFD_RELOC_SH_GOTOFF_MEDHI16
2765ENUMX
2766 BFD_RELOC_SH_GOTOFF_HI16
2767ENUMX
2768 BFD_RELOC_SH_GOTPC_LOW16
2769ENUMX
2770 BFD_RELOC_SH_GOTPC_MEDLOW16
2771ENUMX
2772 BFD_RELOC_SH_GOTPC_MEDHI16
2773ENUMX
2774 BFD_RELOC_SH_GOTPC_HI16
2775ENUMX
2776 BFD_RELOC_SH_COPY64
2777ENUMX
2778 BFD_RELOC_SH_GLOB_DAT64
2779ENUMX
2780 BFD_RELOC_SH_JMP_SLOT64
2781ENUMX
2782 BFD_RELOC_SH_RELATIVE64
2783ENUMX
2784 BFD_RELOC_SH_GOT10BY4
2785ENUMX
2786 BFD_RELOC_SH_GOT10BY8
2787ENUMX
2788 BFD_RELOC_SH_GOTPLT10BY4
2789ENUMX
2790 BFD_RELOC_SH_GOTPLT10BY8
2791ENUMX
2792 BFD_RELOC_SH_GOTPLT32
2793ENUMX
2794 BFD_RELOC_SH_SHMEDIA_CODE
2795ENUMX
2796 BFD_RELOC_SH_IMMU5
2797ENUMX
2798 BFD_RELOC_SH_IMMS6
2799ENUMX
2800 BFD_RELOC_SH_IMMS6BY32
2801ENUMX
2802 BFD_RELOC_SH_IMMU6
2803ENUMX
2804 BFD_RELOC_SH_IMMS10
2805ENUMX
2806 BFD_RELOC_SH_IMMS10BY2
2807ENUMX
2808 BFD_RELOC_SH_IMMS10BY4
2809ENUMX
2810 BFD_RELOC_SH_IMMS10BY8
2811ENUMX
2812 BFD_RELOC_SH_IMMS16
2813ENUMX
2814 BFD_RELOC_SH_IMMU16
2815ENUMX
2816 BFD_RELOC_SH_IMM_LOW16
2817ENUMX
2818 BFD_RELOC_SH_IMM_LOW16_PCREL
2819ENUMX
2820 BFD_RELOC_SH_IMM_MEDLOW16
2821ENUMX
2822 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2823ENUMX
2824 BFD_RELOC_SH_IMM_MEDHI16
2825ENUMX
2826 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2827ENUMX
2828 BFD_RELOC_SH_IMM_HI16
2829ENUMX
2830 BFD_RELOC_SH_IMM_HI16_PCREL
2831ENUMX
2832 BFD_RELOC_SH_PT_16
3376eaf5
KK
2833ENUMX
2834 BFD_RELOC_SH_TLS_GD_32
2835ENUMX
2836 BFD_RELOC_SH_TLS_LD_32
2837ENUMX
2838 BFD_RELOC_SH_TLS_LDO_32
2839ENUMX
2840 BFD_RELOC_SH_TLS_IE_32
2841ENUMX
2842 BFD_RELOC_SH_TLS_LE_32
2843ENUMX
2844 BFD_RELOC_SH_TLS_DTPMOD32
2845ENUMX
2846 BFD_RELOC_SH_TLS_DTPOFF32
2847ENUMX
2848 BFD_RELOC_SH_TLS_TPOFF32
252b5132 2849ENUMDOC
ef230218 2850 Renesas / SuperH SH relocs. Not all of these appear in object files.
252b5132
RH
2851
2852ENUM
2853 BFD_RELOC_THUMB_PCREL_BRANCH9
2854ENUMX
2855 BFD_RELOC_THUMB_PCREL_BRANCH12
2856ENUMX
2857 BFD_RELOC_THUMB_PCREL_BRANCH23
2858ENUMDOC
2859 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2860 be zero and is not stored in the instruction.
2861
2862ENUM
2863 BFD_RELOC_ARC_B22_PCREL
2864ENUMDOC
0d2bcfaf 2865 ARC Cores relocs.
252b5132
RH
2866 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2867 not stored in the instruction. The high 20 bits are installed in bits 26
2868 through 7 of the instruction.
2869ENUM
2870 BFD_RELOC_ARC_B26
2871ENUMDOC
2872 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2873 stored in the instruction. The high 24 bits are installed in bits 23
2874 through 0.
2875
2876ENUM
2877 BFD_RELOC_D10V_10_PCREL_R
2878ENUMDOC
2879 Mitsubishi D10V relocs.
2880 This is a 10-bit reloc with the right 2 bits
2881 assumed to be 0.
2882ENUM
2883 BFD_RELOC_D10V_10_PCREL_L
2884ENUMDOC
2885 Mitsubishi D10V relocs.
2886 This is a 10-bit reloc with the right 2 bits
2887 assumed to be 0. This is the same as the previous reloc
2888 except it is in the left container, i.e.,
2889 shifted left 15 bits.
2890ENUM
2891 BFD_RELOC_D10V_18
2892ENUMDOC
2893 This is an 18-bit reloc with the right 2 bits
2894 assumed to be 0.
2895ENUM
2896 BFD_RELOC_D10V_18_PCREL
2897ENUMDOC
2898 This is an 18-bit reloc with the right 2 bits
2899 assumed to be 0.
2900
2901ENUM
2902 BFD_RELOC_D30V_6
2903ENUMDOC
2904 Mitsubishi D30V relocs.
2905 This is a 6-bit absolute reloc.
2906ENUM
2907 BFD_RELOC_D30V_9_PCREL
2908ENUMDOC
88b6bae0
AM
2909 This is a 6-bit pc-relative reloc with
2910 the right 3 bits assumed to be 0.
252b5132
RH
2911ENUM
2912 BFD_RELOC_D30V_9_PCREL_R
2913ENUMDOC
88b6bae0 2914 This is a 6-bit pc-relative reloc with
252b5132
RH
2915 the right 3 bits assumed to be 0. Same
2916 as the previous reloc but on the right side
88b6bae0 2917 of the container.
252b5132
RH
2918ENUM
2919 BFD_RELOC_D30V_15
2920ENUMDOC
88b6bae0
AM
2921 This is a 12-bit absolute reloc with the
2922 right 3 bitsassumed to be 0.
252b5132
RH
2923ENUM
2924 BFD_RELOC_D30V_15_PCREL
2925ENUMDOC
88b6bae0
AM
2926 This is a 12-bit pc-relative reloc with
2927 the right 3 bits assumed to be 0.
252b5132
RH
2928ENUM
2929 BFD_RELOC_D30V_15_PCREL_R
2930ENUMDOC
88b6bae0 2931 This is a 12-bit pc-relative reloc with
252b5132
RH
2932 the right 3 bits assumed to be 0. Same
2933 as the previous reloc but on the right side
88b6bae0 2934 of the container.
252b5132
RH
2935ENUM
2936 BFD_RELOC_D30V_21
2937ENUMDOC
88b6bae0 2938 This is an 18-bit absolute reloc with
252b5132
RH
2939 the right 3 bits assumed to be 0.
2940ENUM
2941 BFD_RELOC_D30V_21_PCREL
2942ENUMDOC
88b6bae0 2943 This is an 18-bit pc-relative reloc with
252b5132
RH
2944 the right 3 bits assumed to be 0.
2945ENUM
2946 BFD_RELOC_D30V_21_PCREL_R
2947ENUMDOC
88b6bae0 2948 This is an 18-bit pc-relative reloc with
252b5132
RH
2949 the right 3 bits assumed to be 0. Same
2950 as the previous reloc but on the right side
2951 of the container.
2952ENUM
2953 BFD_RELOC_D30V_32
2954ENUMDOC
2955 This is a 32-bit absolute reloc.
2956ENUM
2957 BFD_RELOC_D30V_32_PCREL
2958ENUMDOC
2959 This is a 32-bit pc-relative reloc.
2960
d172d4ba
NC
2961ENUM
2962 BFD_RELOC_DLX_HI16_S
2963ENUMDOC
2964 DLX relocs
2965ENUM
2966 BFD_RELOC_DLX_LO16
2967ENUMDOC
2968 DLX relocs
2969ENUM
2970 BFD_RELOC_DLX_JMP26
2971ENUMDOC
2972 DLX relocs
2973
252b5132
RH
2974ENUM
2975 BFD_RELOC_M32R_24
2976ENUMDOC
26597c86 2977 Renesas M32R (formerly Mitsubishi M32R) relocs.
252b5132
RH
2978 This is a 24 bit absolute address.
2979ENUM
2980 BFD_RELOC_M32R_10_PCREL
2981ENUMDOC
2982 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2983ENUM
2984 BFD_RELOC_M32R_18_PCREL
2985ENUMDOC
2986 This is an 18-bit reloc with the right 2 bits assumed to be 0.
2987ENUM
2988 BFD_RELOC_M32R_26_PCREL
2989ENUMDOC
2990 This is a 26-bit reloc with the right 2 bits assumed to be 0.
2991ENUM
2992 BFD_RELOC_M32R_HI16_ULO
2993ENUMDOC
2994 This is a 16-bit reloc containing the high 16 bits of an address
2995 used when the lower 16 bits are treated as unsigned.
2996ENUM
2997 BFD_RELOC_M32R_HI16_SLO
2998ENUMDOC
2999 This is a 16-bit reloc containing the high 16 bits of an address
3000 used when the lower 16 bits are treated as signed.
3001ENUM
3002 BFD_RELOC_M32R_LO16
3003ENUMDOC
3004 This is a 16-bit reloc containing the lower 16 bits of an address.
3005ENUM
3006 BFD_RELOC_M32R_SDA16
3007ENUMDOC
3008 This is a 16-bit reloc containing the small data area offset for use in
3009 add3, load, and store instructions.
6edf0760
NC
3010ENUM
3011 BFD_RELOC_M32R_GOT24
3012ENUMX
3013 BFD_RELOC_M32R_26_PLTREL
3014ENUMX
3015 BFD_RELOC_M32R_COPY
3016ENUMX
3017 BFD_RELOC_M32R_GLOB_DAT
3018ENUMX
3019 BFD_RELOC_M32R_JMP_SLOT
3020ENUMX
3021 BFD_RELOC_M32R_RELATIVE
3022ENUMX
3023 BFD_RELOC_M32R_GOTOFF
097f809a
NC
3024ENUMX
3025 BFD_RELOC_M32R_GOTOFF_HI_ULO
3026ENUMX
3027 BFD_RELOC_M32R_GOTOFF_HI_SLO
3028ENUMX
3029 BFD_RELOC_M32R_GOTOFF_LO
6edf0760
NC
3030ENUMX
3031 BFD_RELOC_M32R_GOTPC24
3032ENUMX
3033 BFD_RELOC_M32R_GOT16_HI_ULO
3034ENUMX
3035 BFD_RELOC_M32R_GOT16_HI_SLO
3036ENUMX
3037 BFD_RELOC_M32R_GOT16_LO
3038ENUMX
3039 BFD_RELOC_M32R_GOTPC_HI_ULO
3040ENUMX
3041 BFD_RELOC_M32R_GOTPC_HI_SLO
3042ENUMX
3043 BFD_RELOC_M32R_GOTPC_LO
3044ENUMDOC
3045 For PIC.
3046
252b5132
RH
3047
3048ENUM
3049 BFD_RELOC_V850_9_PCREL
3050ENUMDOC
3051 This is a 9-bit reloc
3052ENUM
3053 BFD_RELOC_V850_22_PCREL
3054ENUMDOC
3055 This is a 22-bit reloc
3056
3057ENUM
3058 BFD_RELOC_V850_SDA_16_16_OFFSET
3059ENUMDOC
3060 This is a 16 bit offset from the short data area pointer.
3061ENUM
3062 BFD_RELOC_V850_SDA_15_16_OFFSET
3063ENUMDOC
3064 This is a 16 bit offset (of which only 15 bits are used) from the
3065 short data area pointer.
3066ENUM
3067 BFD_RELOC_V850_ZDA_16_16_OFFSET
3068ENUMDOC
3069 This is a 16 bit offset from the zero data area pointer.
3070ENUM
3071 BFD_RELOC_V850_ZDA_15_16_OFFSET
3072ENUMDOC
3073 This is a 16 bit offset (of which only 15 bits are used) from the
3074 zero data area pointer.
3075ENUM
3076 BFD_RELOC_V850_TDA_6_8_OFFSET
3077ENUMDOC
3078 This is an 8 bit offset (of which only 6 bits are used) from the
3079 tiny data area pointer.
3080ENUM
3081 BFD_RELOC_V850_TDA_7_8_OFFSET
3082ENUMDOC
3083 This is an 8bit offset (of which only 7 bits are used) from the tiny
3084 data area pointer.
3085ENUM
3086 BFD_RELOC_V850_TDA_7_7_OFFSET
3087ENUMDOC
3088 This is a 7 bit offset from the tiny data area pointer.
3089ENUM
3090 BFD_RELOC_V850_TDA_16_16_OFFSET
3091ENUMDOC
3092 This is a 16 bit offset from the tiny data area pointer.
3093COMMENT
3094ENUM
3095 BFD_RELOC_V850_TDA_4_5_OFFSET
3096ENUMDOC
3097 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3098 data area pointer.
3099ENUM
3100 BFD_RELOC_V850_TDA_4_4_OFFSET
3101ENUMDOC
3102 This is a 4 bit offset from the tiny data area pointer.
3103ENUM
3104 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3105ENUMDOC
3106 This is a 16 bit offset from the short data area pointer, with the
7dee875e 3107 bits placed non-contiguously in the instruction.
252b5132
RH
3108ENUM
3109 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3110ENUMDOC
3111 This is a 16 bit offset from the zero data area pointer, with the
7dee875e 3112 bits placed non-contiguously in the instruction.
252b5132
RH
3113ENUM
3114 BFD_RELOC_V850_CALLT_6_7_OFFSET
3115ENUMDOC
3116 This is a 6 bit offset from the call table base pointer.
3117ENUM
3118 BFD_RELOC_V850_CALLT_16_16_OFFSET
3119ENUMDOC
3120 This is a 16 bit offset from the call table base pointer.
86aba9db
NC
3121ENUM
3122 BFD_RELOC_V850_LONGCALL
3123ENUMDOC
3124 Used for relaxing indirect function calls.
3125ENUM
3126 BFD_RELOC_V850_LONGJUMP
3127ENUMDOC
3128 Used for relaxing indirect jumps.
3129ENUM
3130 BFD_RELOC_V850_ALIGN
3131ENUMDOC
3132 Used to maintain alignment whilst relaxing.
1e50d24d
RS
3133ENUM
3134 BFD_RELOC_V850_LO16_SPLIT_OFFSET
3135ENUMDOC
3136 This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3137 instructions.
252b5132
RH
3138ENUM
3139 BFD_RELOC_MN10300_32_PCREL
3140ENUMDOC
3141 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3142 instruction.
3143ENUM
3144 BFD_RELOC_MN10300_16_PCREL
3145ENUMDOC
3146 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3147 instruction.
3148
3149ENUM
3150 BFD_RELOC_TIC30_LDP
3151ENUMDOC
3152 This is a 8bit DP reloc for the tms320c30, where the most
3153 significant 8 bits of a 24 bit word are placed into the least
3154 significant 8 bits of the opcode.
3155
81635ce4
TW
3156ENUM
3157 BFD_RELOC_TIC54X_PARTLS7
3158ENUMDOC
3159 This is a 7bit reloc for the tms320c54x, where the least
3160 significant 7 bits of a 16 bit word are placed into the least
3161 significant 7 bits of the opcode.
3162
3163ENUM
3164 BFD_RELOC_TIC54X_PARTMS9
3165ENUMDOC
3166 This is a 9bit DP reloc for the tms320c54x, where the most
3167 significant 9 bits of a 16 bit word are placed into the least
3168 significant 9 bits of the opcode.
3169
3170ENUM
3171 BFD_RELOC_TIC54X_23
3172ENUMDOC
3173 This is an extended address 23-bit reloc for the tms320c54x.
3174
3175ENUM
3176 BFD_RELOC_TIC54X_16_OF_23
3177ENUMDOC
3d855632
KH
3178 This is a 16-bit reloc for the tms320c54x, where the least
3179 significant 16 bits of a 23-bit extended address are placed into
81635ce4
TW
3180 the opcode.
3181
3182ENUM
3183 BFD_RELOC_TIC54X_MS7_OF_23
3184ENUMDOC
3185 This is a reloc for the tms320c54x, where the most
3d855632 3186 significant 7 bits of a 23-bit extended address are placed into
81635ce4 3187 the opcode.
81635ce4 3188
252b5132
RH
3189ENUM
3190 BFD_RELOC_FR30_48
3191ENUMDOC
3192 This is a 48 bit reloc for the FR30 that stores 32 bits.
3193ENUM
3194 BFD_RELOC_FR30_20
3195ENUMDOC
3196 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3197 two sections.
3198ENUM
3199 BFD_RELOC_FR30_6_IN_4
3200ENUMDOC
3201 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3202 4 bits.
3203ENUM
3204 BFD_RELOC_FR30_8_IN_8
3205ENUMDOC
3206 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3207 into 8 bits.
3208ENUM
3209 BFD_RELOC_FR30_9_IN_8
3210ENUMDOC
3211 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3212 into 8 bits.
3213ENUM
3214 BFD_RELOC_FR30_10_IN_8
3215ENUMDOC
3216 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3217 into 8 bits.
3218ENUM
3219 BFD_RELOC_FR30_9_PCREL
3220ENUMDOC
3221 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3222 short offset into 8 bits.
3223ENUM
3224 BFD_RELOC_FR30_12_PCREL
3225ENUMDOC
3226 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3227 short offset into 11 bits.
88b6bae0 3228
252b5132
RH
3229ENUM
3230 BFD_RELOC_MCORE_PCREL_IMM8BY4
3231ENUMX
3232 BFD_RELOC_MCORE_PCREL_IMM11BY2
3233ENUMX
3234 BFD_RELOC_MCORE_PCREL_IMM4BY2
3235ENUMX
3236 BFD_RELOC_MCORE_PCREL_32
3237ENUMX
3238 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
36797d47
NC
3239ENUMX
3240 BFD_RELOC_MCORE_RVA
252b5132
RH
3241ENUMDOC
3242 Motorola Mcore relocations.
88b6bae0 3243
3c3bdf30
NC
3244ENUM
3245 BFD_RELOC_MMIX_GETA
3246ENUMX
3247 BFD_RELOC_MMIX_GETA_1
3248ENUMX
3249 BFD_RELOC_MMIX_GETA_2
3250ENUMX
3251 BFD_RELOC_MMIX_GETA_3
3252ENUMDOC
3253 These are relocations for the GETA instruction.
3254ENUM
3255 BFD_RELOC_MMIX_CBRANCH
3256ENUMX
3257 BFD_RELOC_MMIX_CBRANCH_J
3258ENUMX
3259 BFD_RELOC_MMIX_CBRANCH_1
3260ENUMX
3261 BFD_RELOC_MMIX_CBRANCH_2
3262ENUMX
3263 BFD_RELOC_MMIX_CBRANCH_3
3264ENUMDOC
3265 These are relocations for a conditional branch instruction.
3266ENUM
3267 BFD_RELOC_MMIX_PUSHJ
3268ENUMX
3269 BFD_RELOC_MMIX_PUSHJ_1
3270ENUMX
3271 BFD_RELOC_MMIX_PUSHJ_2
3272ENUMX
3273 BFD_RELOC_MMIX_PUSHJ_3
f60ebe14
HPN
3274ENUMX
3275 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3c3bdf30
NC
3276ENUMDOC
3277 These are relocations for the PUSHJ instruction.
3278ENUM
3279 BFD_RELOC_MMIX_JMP
3280ENUMX
3281 BFD_RELOC_MMIX_JMP_1
3282ENUMX
3283 BFD_RELOC_MMIX_JMP_2
3284ENUMX
3285 BFD_RELOC_MMIX_JMP_3
3286ENUMDOC
3287 These are relocations for the JMP instruction.
3288ENUM
3289 BFD_RELOC_MMIX_ADDR19
3290ENUMDOC
3291 This is a relocation for a relative address as in a GETA instruction or
3292 a branch.
3293ENUM
3294 BFD_RELOC_MMIX_ADDR27
3295ENUMDOC
3296 This is a relocation for a relative address as in a JMP instruction.
3297ENUM
3298 BFD_RELOC_MMIX_REG_OR_BYTE
3299ENUMDOC
3300 This is a relocation for an instruction field that may be a general
3301 register or a value 0..255.
3302ENUM
3303 BFD_RELOC_MMIX_REG
3304ENUMDOC
3305 This is a relocation for an instruction field that may be a general
3306 register.
3307ENUM
3308 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3309ENUMDOC
3310 This is a relocation for two instruction fields holding a register and
3311 an offset, the equivalent of the relocation.
3312ENUM
3313 BFD_RELOC_MMIX_LOCAL
3314ENUMDOC
3315 This relocation is an assertion that the expression is not allocated as
3316 a global register. It does not modify contents.
3317
adde6300
AM
3318ENUM
3319 BFD_RELOC_AVR_7_PCREL
3320ENUMDOC
3321 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3322 short offset into 7 bits.
3323ENUM
3324 BFD_RELOC_AVR_13_PCREL
3325ENUMDOC
3326 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3327 short offset into 12 bits.
3328ENUM
3329 BFD_RELOC_AVR_16_PM
3330ENUMDOC
3331 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3d855632 3332 program memory address) into 16 bits.
adde6300
AM
3333ENUM
3334 BFD_RELOC_AVR_LO8_LDI
3335ENUMDOC
3336 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3337 data memory address) into 8 bit immediate value of LDI insn.
3338ENUM
3339 BFD_RELOC_AVR_HI8_LDI
3340ENUMDOC
3341 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3342 of data memory address) into 8 bit immediate value of LDI insn.
3343ENUM
3344 BFD_RELOC_AVR_HH8_LDI
3345ENUMDOC
3346 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3347 of program memory address) into 8 bit immediate value of LDI insn.
3348ENUM
3349 BFD_RELOC_AVR_LO8_LDI_NEG
3350ENUMDOC
3351 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3352 (usually data memory address) into 8 bit immediate value of SUBI insn.
3353ENUM
3354 BFD_RELOC_AVR_HI8_LDI_NEG
3355ENUMDOC
3356 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3357 (high 8 bit of data memory address) into 8 bit immediate value of
3358 SUBI insn.
3359ENUM
3360 BFD_RELOC_AVR_HH8_LDI_NEG
3361ENUMDOC
3362 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3363 (most high 8 bit of program memory address) into 8 bit immediate value
3364 of LDI or SUBI insn.
3365ENUM
3366 BFD_RELOC_AVR_LO8_LDI_PM
3367ENUMDOC
3368 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3369 command address) into 8 bit immediate value of LDI insn.
3370ENUM
3371 BFD_RELOC_AVR_HI8_LDI_PM
3372ENUMDOC
3373 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3374 of command address) into 8 bit immediate value of LDI insn.
3375ENUM
3376 BFD_RELOC_AVR_HH8_LDI_PM
3377ENUMDOC
3378 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3379 of command address) into 8 bit immediate value of LDI insn.
3380ENUM
3381 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3382ENUMDOC
3383 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3384 (usually command address) into 8 bit immediate value of SUBI insn.
3385ENUM
3386 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3387ENUMDOC
3388 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3389 (high 8 bit of 16 bit command address) into 8 bit immediate value
3390 of SUBI insn.
3391ENUM
3392 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3393ENUMDOC
3394 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3395 (high 6 bit of 22 bit command address) into 8 bit immediate
3396 value of SUBI insn.
3397ENUM
3398 BFD_RELOC_AVR_CALL
3399ENUMDOC
3400 This is a 32 bit reloc for the AVR that stores 23 bit value
3401 into 22 bits.
b996922c
AM
3402ENUM
3403 BFD_RELOC_AVR_LDI
3404ENUMDOC
3405 This is a 16 bit reloc for the AVR that stores all needed bits
3406 for absolute addressing with ldi with overflow check to linktime
3407ENUM
3408 BFD_RELOC_AVR_6
3409ENUMDOC
3410 This is a 6 bit reloc for the AVR that stores offset for ldd/std
3411 instructions
3412ENUM
3413 BFD_RELOC_AVR_6_ADIW
3414ENUMDOC
3415 This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3416 instructions
adde6300 3417
a85d7ed0
NC
3418ENUM
3419 BFD_RELOC_390_12
3420ENUMDOC
3421 Direct 12 bit.
3422ENUM
3423 BFD_RELOC_390_GOT12
3424ENUMDOC
3425 12 bit GOT offset.
3426ENUM
3427 BFD_RELOC_390_PLT32
3428ENUMDOC
3429 32 bit PC relative PLT address.
3430ENUM
3431 BFD_RELOC_390_COPY
3432ENUMDOC
3433 Copy symbol at runtime.
3434ENUM
3435 BFD_RELOC_390_GLOB_DAT
3436ENUMDOC
3437 Create GOT entry.
3438ENUM
3439 BFD_RELOC_390_JMP_SLOT
3440ENUMDOC
3441 Create PLT entry.
3442ENUM
3443 BFD_RELOC_390_RELATIVE
3444ENUMDOC
3445 Adjust by program base.
3446ENUM
3447 BFD_RELOC_390_GOTPC
3448ENUMDOC
3449 32 bit PC relative offset to GOT.
3450ENUM
3451 BFD_RELOC_390_GOT16
3452ENUMDOC
3453 16 bit GOT offset.
3454ENUM
3455 BFD_RELOC_390_PC16DBL
3456ENUMDOC
3457 PC relative 16 bit shifted by 1.
3458ENUM
3459 BFD_RELOC_390_PLT16DBL
3460ENUMDOC
3461 16 bit PC rel. PLT shifted by 1.
3462ENUM
3463 BFD_RELOC_390_PC32DBL
3464ENUMDOC
3465 PC relative 32 bit shifted by 1.
3466ENUM
3467 BFD_RELOC_390_PLT32DBL
3468ENUMDOC
3469 32 bit PC rel. PLT shifted by 1.
3470ENUM
3471 BFD_RELOC_390_GOTPCDBL
3472ENUMDOC
3473 32 bit PC rel. GOT shifted by 1.
3474ENUM
3475 BFD_RELOC_390_GOT64
3476ENUMDOC
3477 64 bit GOT offset.
3478ENUM
3479 BFD_RELOC_390_PLT64
3480ENUMDOC
3481 64 bit PC relative PLT address.
3482ENUM
3483 BFD_RELOC_390_GOTENT
3484ENUMDOC
3485 32 bit rel. offset to GOT entry.
5236c819
MS
3486ENUM
3487 BFD_RELOC_390_GOTOFF64
3488ENUMDOC
3489 64 bit offset to GOT.
3490ENUM
3491 BFD_RELOC_390_GOTPLT12
3492ENUMDOC
3493 12-bit offset to symbol-entry within GOT, with PLT handling.
3494ENUM
3495 BFD_RELOC_390_GOTPLT16
3496ENUMDOC
3497 16-bit offset to symbol-entry within GOT, with PLT handling.
3498ENUM
3499 BFD_RELOC_390_GOTPLT32
3500ENUMDOC
3501 32-bit offset to symbol-entry within GOT, with PLT handling.
3502ENUM
3503 BFD_RELOC_390_GOTPLT64
3504ENUMDOC
3505 64-bit offset to symbol-entry within GOT, with PLT handling.
3506ENUM
3507 BFD_RELOC_390_GOTPLTENT
3508ENUMDOC
3509 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3510ENUM
3511 BFD_RELOC_390_PLTOFF16
3512ENUMDOC
3513 16-bit rel. offset from the GOT to a PLT entry.
3514ENUM
3515 BFD_RELOC_390_PLTOFF32
3516ENUMDOC
3517 32-bit rel. offset from the GOT to a PLT entry.
3518ENUM
3519 BFD_RELOC_390_PLTOFF64
3520ENUMDOC
3521 64-bit rel. offset from the GOT to a PLT entry.
dc810e39 3522
69fc87f1
MS
3523ENUM
3524 BFD_RELOC_390_TLS_LOAD
3525ENUMX
3526 BFD_RELOC_390_TLS_GDCALL
3527ENUMX
3528 BFD_RELOC_390_TLS_LDCALL
3529ENUMX
3530 BFD_RELOC_390_TLS_GD32
3531ENUMX
3532 BFD_RELOC_390_TLS_GD64
3533ENUMX
3534 BFD_RELOC_390_TLS_GOTIE12
3535ENUMX
3536 BFD_RELOC_390_TLS_GOTIE32
3537ENUMX
3538 BFD_RELOC_390_TLS_GOTIE64
3539ENUMX
3540 BFD_RELOC_390_TLS_LDM32
3541ENUMX
3542 BFD_RELOC_390_TLS_LDM64
3543ENUMX
3544 BFD_RELOC_390_TLS_IE32
3545ENUMX
3546 BFD_RELOC_390_TLS_IE64
3547ENUMX
3548 BFD_RELOC_390_TLS_IEENT
3549ENUMX
3550 BFD_RELOC_390_TLS_LE32
3551ENUMX
3552 BFD_RELOC_390_TLS_LE64
3553ENUMX
3554 BFD_RELOC_390_TLS_LDO32
3555ENUMX
3556 BFD_RELOC_390_TLS_LDO64
3557ENUMX
3558 BFD_RELOC_390_TLS_DTPMOD
3559ENUMX
3560 BFD_RELOC_390_TLS_DTPOFF
3561ENUMX
3562 BFD_RELOC_390_TLS_TPOFF
3563ENUMDOC
3564 s390 tls relocations.
3565
bd1ea41b
MS
3566ENUM
3567 BFD_RELOC_390_20
3568ENUMX
3569 BFD_RELOC_390_GOT20
3570ENUMX
3571 BFD_RELOC_390_GOTPLT20
3572ENUMX
3573 BFD_RELOC_390_TLS_GOTIE20
3574ENUMDOC
3575 Long displacement extension.
3576
cf88bb9f
NC
3577ENUM
3578 BFD_RELOC_IP2K_FR9
3579ENUMDOC
3580 Scenix IP2K - 9-bit register number / data address
3581ENUM
3582 BFD_RELOC_IP2K_BANK
3583ENUMDOC
3584 Scenix IP2K - 4-bit register/data bank number
3585ENUM
3586 BFD_RELOC_IP2K_ADDR16CJP
3587ENUMDOC
3588 Scenix IP2K - low 13 bits of instruction word address
3589ENUM
3590 BFD_RELOC_IP2K_PAGE3
3591ENUMDOC
3592 Scenix IP2K - high 3 bits of instruction word address
3593ENUM
3594 BFD_RELOC_IP2K_LO8DATA
3595ENUMX
3596 BFD_RELOC_IP2K_HI8DATA
3597ENUMX
3598 BFD_RELOC_IP2K_EX8DATA
3599ENUMDOC
3600 Scenix IP2K - ext/low/high 8 bits of data address
3601ENUM
3602 BFD_RELOC_IP2K_LO8INSN
3603ENUMX
3604 BFD_RELOC_IP2K_HI8INSN
3605ENUMDOC
3606 Scenix IP2K - low/high 8 bits of instruction word address
3607ENUM
3608 BFD_RELOC_IP2K_PC_SKIP
3609ENUMDOC
3610 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3611ENUM
3612 BFD_RELOC_IP2K_TEXT
3613ENUMDOC
3614 Scenix IP2K - 16 bit word address in text section.
3615ENUM
3616 BFD_RELOC_IP2K_FR_OFFSET
3617ENUMDOC
3618 Scenix IP2K - 7-bit sp or dp offset
3619ENUM
3620 BFD_RELOC_VPE4KMATH_DATA
3621ENUMX
3622 BFD_RELOC_VPE4KMATH_INSN
3623ENUMDOC
3624 Scenix VPE4K coprocessor - data/insn-space addressing
3625
252b5132
RH
3626ENUM
3627 BFD_RELOC_VTABLE_INHERIT
3628ENUMX
3629 BFD_RELOC_VTABLE_ENTRY
3630ENUMDOC
88b6bae0 3631 These two relocations are used by the linker to determine which of
252b5132
RH
3632 the entries in a C++ virtual function table are actually used. When
3633 the --gc-sections option is given, the linker will zero out the entries
3634 that are not used, so that the code for those functions need not be
3635 included in the output.
3636
3637 VTABLE_INHERIT is a zero-space relocation used to describe to the
7dee875e 3638 linker the inheritance tree of a C++ virtual function table. The
252b5132
RH
3639 relocation's symbol should be the parent class' vtable, and the
3640 relocation should be located at the child vtable.
3641
3642 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3643 virtual function table entry. The reloc's symbol should refer to the
3644 table of the class mentioned in the code. Off of that base, an offset
88b6bae0 3645 describes the entry that is being used. For Rela hosts, this offset
252b5132
RH
3646 is stored in the reloc's addend. For Rel hosts, we are forced to put
3647 this offset in the reloc's section offset.
3648
800eeca4
JW
3649ENUM
3650 BFD_RELOC_IA64_IMM14
3651ENUMX
3652 BFD_RELOC_IA64_IMM22
3653ENUMX
3654 BFD_RELOC_IA64_IMM64
3655ENUMX
3656 BFD_RELOC_IA64_DIR32MSB
3657ENUMX
3658 BFD_RELOC_IA64_DIR32LSB
3659ENUMX
3660 BFD_RELOC_IA64_DIR64MSB
3661ENUMX
3662 BFD_RELOC_IA64_DIR64LSB
3663ENUMX
3664 BFD_RELOC_IA64_GPREL22
3665ENUMX
3666 BFD_RELOC_IA64_GPREL64I
3667ENUMX
3668 BFD_RELOC_IA64_GPREL32MSB
3669ENUMX
3670 BFD_RELOC_IA64_GPREL32LSB
3671ENUMX
3672 BFD_RELOC_IA64_GPREL64MSB
3673ENUMX
3674 BFD_RELOC_IA64_GPREL64LSB
3675ENUMX
3676 BFD_RELOC_IA64_LTOFF22
3677ENUMX
3678 BFD_RELOC_IA64_LTOFF64I
3679ENUMX
3680 BFD_RELOC_IA64_PLTOFF22
3681ENUMX
3682 BFD_RELOC_IA64_PLTOFF64I
3683ENUMX
3684 BFD_RELOC_IA64_PLTOFF64MSB
3685ENUMX
3686 BFD_RELOC_IA64_PLTOFF64LSB
3687ENUMX
3688 BFD_RELOC_IA64_FPTR64I
3689ENUMX
3690 BFD_RELOC_IA64_FPTR32MSB
3691ENUMX
3692 BFD_RELOC_IA64_FPTR32LSB
3693ENUMX
3694 BFD_RELOC_IA64_FPTR64MSB
3695ENUMX
3696 BFD_RELOC_IA64_FPTR64LSB
3697ENUMX
3698 BFD_RELOC_IA64_PCREL21B
748abff6
RH
3699ENUMX
3700 BFD_RELOC_IA64_PCREL21BI
800eeca4
JW
3701ENUMX
3702 BFD_RELOC_IA64_PCREL21M
3703ENUMX
3704 BFD_RELOC_IA64_PCREL21F
748abff6
RH
3705ENUMX
3706 BFD_RELOC_IA64_PCREL22
3707ENUMX
3708 BFD_RELOC_IA64_PCREL60B
3709ENUMX
3710 BFD_RELOC_IA64_PCREL64I
800eeca4
JW
3711ENUMX
3712 BFD_RELOC_IA64_PCREL32MSB
3713ENUMX
3714 BFD_RELOC_IA64_PCREL32LSB
3715ENUMX
3716 BFD_RELOC_IA64_PCREL64MSB
3717ENUMX
3718 BFD_RELOC_IA64_PCREL64LSB
3719ENUMX
3720 BFD_RELOC_IA64_LTOFF_FPTR22
3721ENUMX
3722 BFD_RELOC_IA64_LTOFF_FPTR64I
a4bd8390
JW
3723ENUMX
3724 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3725ENUMX
3726 BFD_RELOC_IA64_LTOFF_FPTR32LSB
800eeca4
JW
3727ENUMX
3728 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3729ENUMX
3730 BFD_RELOC_IA64_LTOFF_FPTR64LSB
800eeca4
JW
3731ENUMX
3732 BFD_RELOC_IA64_SEGREL32MSB
3733ENUMX
3734 BFD_RELOC_IA64_SEGREL32LSB
3735ENUMX
3736 BFD_RELOC_IA64_SEGREL64MSB
3737ENUMX
3738 BFD_RELOC_IA64_SEGREL64LSB
3739ENUMX
3740 BFD_RELOC_IA64_SECREL32MSB
3741ENUMX
3742 BFD_RELOC_IA64_SECREL32LSB
3743ENUMX
3744 BFD_RELOC_IA64_SECREL64MSB
3745ENUMX
3746 BFD_RELOC_IA64_SECREL64LSB
3747ENUMX
3748 BFD_RELOC_IA64_REL32MSB
3749ENUMX
3750 BFD_RELOC_IA64_REL32LSB
3751ENUMX
3752 BFD_RELOC_IA64_REL64MSB
3753ENUMX
3754 BFD_RELOC_IA64_REL64LSB
3755ENUMX
3756 BFD_RELOC_IA64_LTV32MSB
3757ENUMX
3758 BFD_RELOC_IA64_LTV32LSB
3759ENUMX
3760 BFD_RELOC_IA64_LTV64MSB
3761ENUMX
3762 BFD_RELOC_IA64_LTV64LSB
3763ENUMX
3764 BFD_RELOC_IA64_IPLTMSB
3765ENUMX
3766 BFD_RELOC_IA64_IPLTLSB
800eeca4
JW
3767ENUMX
3768 BFD_RELOC_IA64_COPY
13ae64f3
JJ
3769ENUMX
3770 BFD_RELOC_IA64_LTOFF22X
3771ENUMX
3772 BFD_RELOC_IA64_LDXMOV
3773ENUMX
3774 BFD_RELOC_IA64_TPREL14
800eeca4
JW
3775ENUMX
3776 BFD_RELOC_IA64_TPREL22
13ae64f3
JJ
3777ENUMX
3778 BFD_RELOC_IA64_TPREL64I
800eeca4
JW
3779ENUMX
3780 BFD_RELOC_IA64_TPREL64MSB
3781ENUMX
3782 BFD_RELOC_IA64_TPREL64LSB
3783ENUMX
13ae64f3 3784 BFD_RELOC_IA64_LTOFF_TPREL22
800eeca4 3785ENUMX
13ae64f3 3786 BFD_RELOC_IA64_DTPMOD64MSB
800eeca4 3787ENUMX
13ae64f3
JJ
3788 BFD_RELOC_IA64_DTPMOD64LSB
3789ENUMX
3790 BFD_RELOC_IA64_LTOFF_DTPMOD22
3791ENUMX
3792 BFD_RELOC_IA64_DTPREL14
3793ENUMX
3794 BFD_RELOC_IA64_DTPREL22
3795ENUMX
3796 BFD_RELOC_IA64_DTPREL64I
3797ENUMX
3798 BFD_RELOC_IA64_DTPREL32MSB
3799ENUMX
3800 BFD_RELOC_IA64_DTPREL32LSB
3801ENUMX
3802 BFD_RELOC_IA64_DTPREL64MSB
3803ENUMX
3804 BFD_RELOC_IA64_DTPREL64LSB
3805ENUMX
3806 BFD_RELOC_IA64_LTOFF_DTPREL22
800eeca4
JW
3807ENUMDOC
3808 Intel IA64 Relocations.
60bcf0fa
NC
3809
3810ENUM
3811 BFD_RELOC_M68HC11_HI8
3812ENUMDOC
3813 Motorola 68HC11 reloc.
3dbfec86 3814 This is the 8 bit high part of an absolute address.
60bcf0fa
NC
3815ENUM
3816 BFD_RELOC_M68HC11_LO8
3817ENUMDOC
3818 Motorola 68HC11 reloc.
3dbfec86 3819 This is the 8 bit low part of an absolute address.
60bcf0fa
NC
3820ENUM
3821 BFD_RELOC_M68HC11_3B
3822ENUMDOC
3823 Motorola 68HC11 reloc.
3dbfec86
SC
3824 This is the 3 bit of a value.
3825ENUM
3826 BFD_RELOC_M68HC11_RL_JUMP
3827ENUMDOC
3828 Motorola 68HC11 reloc.
3829 This reloc marks the beginning of a jump/call instruction.
3830 It is used for linker relaxation to correctly identify beginning
7dee875e 3831 of instruction and change some branches to use PC-relative
3dbfec86
SC
3832 addressing mode.
3833ENUM
3834 BFD_RELOC_M68HC11_RL_GROUP
3835ENUMDOC
3836 Motorola 68HC11 reloc.
3837 This reloc marks a group of several instructions that gcc generates
3838 and for which the linker relaxation pass can modify and/or remove
3839 some of them.
3840ENUM
3841 BFD_RELOC_M68HC11_LO16
3842ENUMDOC
3843 Motorola 68HC11 reloc.
3844 This is the 16-bit lower part of an address. It is used for 'call'
3845 instruction to specify the symbol address without any special
3846 transformation (due to memory bank window).
3847ENUM
3848 BFD_RELOC_M68HC11_PAGE
3849ENUMDOC
3850 Motorola 68HC11 reloc.
3851 This is a 8-bit reloc that specifies the page number of an address.
3852 It is used by 'call' instruction to specify the page number of
3853 the symbol.
3854ENUM
3855 BFD_RELOC_M68HC11_24
3856ENUMDOC
3857 Motorola 68HC11 reloc.
3858 This is a 24-bit reloc that represents the address with a 16-bit
3859 value and a 8-bit page number. The symbol address is transformed
3860 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
28d39d1a
NC
3861ENUM
3862 BFD_RELOC_M68HC12_5B
3863ENUMDOC
3864 Motorola 68HC12 reloc.
3865 This is the 5 bits of a value.
60bcf0fa 3866
0949843d
NC
3867ENUM
3868 BFD_RELOC_16C_NUM08
3869ENUMX
3870 BFD_RELOC_16C_NUM08_C
3871ENUMX
3872 BFD_RELOC_16C_NUM16
3873ENUMX
3874 BFD_RELOC_16C_NUM16_C
3875ENUMX
3876 BFD_RELOC_16C_NUM32
3877ENUMX
3878 BFD_RELOC_16C_NUM32_C
3879ENUMX
3880 BFD_RELOC_16C_DISP04
3881ENUMX
3882 BFD_RELOC_16C_DISP04_C
3883ENUMX
3884 BFD_RELOC_16C_DISP08
3885ENUMX
3886 BFD_RELOC_16C_DISP08_C
3887ENUMX
3888 BFD_RELOC_16C_DISP16
3889ENUMX
3890 BFD_RELOC_16C_DISP16_C
3891ENUMX
3892 BFD_RELOC_16C_DISP24
3893ENUMX
3894 BFD_RELOC_16C_DISP24_C
3895ENUMX
3896 BFD_RELOC_16C_DISP24a
3897ENUMX
3898 BFD_RELOC_16C_DISP24a_C
3899ENUMX
3900 BFD_RELOC_16C_REG04
3901ENUMX
3902 BFD_RELOC_16C_REG04_C
3903ENUMX
3904 BFD_RELOC_16C_REG04a
3905ENUMX
3906 BFD_RELOC_16C_REG04a_C
3907ENUMX
3908 BFD_RELOC_16C_REG14
3909ENUMX
3910 BFD_RELOC_16C_REG14_C
3911ENUMX
3912 BFD_RELOC_16C_REG16
3913ENUMX
3914 BFD_RELOC_16C_REG16_C
3915ENUMX
3916 BFD_RELOC_16C_REG20
3917ENUMX
3918 BFD_RELOC_16C_REG20_C
3919ENUMX
3920 BFD_RELOC_16C_ABS20
3921ENUMX
3922 BFD_RELOC_16C_ABS20_C
3923ENUMX
3924 BFD_RELOC_16C_ABS24
3925ENUMX
3926 BFD_RELOC_16C_ABS24_C
3927ENUMX
3928 BFD_RELOC_16C_IMM04
3929ENUMX
3930 BFD_RELOC_16C_IMM04_C
3931ENUMX
3932 BFD_RELOC_16C_IMM16
3933ENUMX
3934 BFD_RELOC_16C_IMM16_C
3935ENUMX
3936 BFD_RELOC_16C_IMM20
3937ENUMX
3938 BFD_RELOC_16C_IMM20_C
3939ENUMX
3940 BFD_RELOC_16C_IMM24
3941ENUMX
3942 BFD_RELOC_16C_IMM24_C
3943ENUMX
3944 BFD_RELOC_16C_IMM32
3945ENUMX
3946 BFD_RELOC_16C_IMM32_C
3947ENUMDOC
3948 NS CR16C Relocations.
3949
1fe1f39c
NC
3950ENUM
3951 BFD_RELOC_CRX_REL4
3952ENUMX
3953 BFD_RELOC_CRX_REL8
3954ENUMX
3955 BFD_RELOC_CRX_REL8_CMP
3956ENUMX
3957 BFD_RELOC_CRX_REL16
3958ENUMX
3959 BFD_RELOC_CRX_REL24
3960ENUMX
3961 BFD_RELOC_CRX_REL32
3962ENUMX
3963 BFD_RELOC_CRX_REGREL12
3964ENUMX
3965 BFD_RELOC_CRX_REGREL22
3966ENUMX
3967 BFD_RELOC_CRX_REGREL28
3968ENUMX
3969 BFD_RELOC_CRX_REGREL32
3970ENUMX
3971 BFD_RELOC_CRX_ABS16
3972ENUMX
3973 BFD_RELOC_CRX_ABS32
3974ENUMX
3975 BFD_RELOC_CRX_NUM8
3976ENUMX
3977 BFD_RELOC_CRX_NUM16
3978ENUMX
3979 BFD_RELOC_CRX_NUM32
3980ENUMX
3981 BFD_RELOC_CRX_IMM16
3982ENUMX
3983 BFD_RELOC_CRX_IMM32
670ec21d
NC
3984ENUMX
3985 BFD_RELOC_CRX_SWITCH8
3986ENUMX
3987 BFD_RELOC_CRX_SWITCH16
3988ENUMX
3989 BFD_RELOC_CRX_SWITCH32
1fe1f39c
NC
3990ENUMDOC
3991 NS CRX Relocations.
3992
06c15ad7
HPN
3993ENUM
3994 BFD_RELOC_CRIS_BDISP8
3995ENUMX
3996 BFD_RELOC_CRIS_UNSIGNED_5
3997ENUMX
3998 BFD_RELOC_CRIS_SIGNED_6
3999ENUMX
4000 BFD_RELOC_CRIS_UNSIGNED_6
bac23f82
HPN
4001ENUMX
4002 BFD_RELOC_CRIS_SIGNED_8
4003ENUMX
4004 BFD_RELOC_CRIS_UNSIGNED_8
4005ENUMX
4006 BFD_RELOC_CRIS_SIGNED_16
4007ENUMX
4008 BFD_RELOC_CRIS_UNSIGNED_16
4009ENUMX
4010 BFD_RELOC_CRIS_LAPCQ_OFFSET
06c15ad7
HPN
4011ENUMX
4012 BFD_RELOC_CRIS_UNSIGNED_4
4013ENUMDOC
4014 These relocs are only used within the CRIS assembler. They are not
4015 (at present) written to any object files.
58d29fc3
HPN
4016ENUM
4017 BFD_RELOC_CRIS_COPY
4018ENUMX
4019 BFD_RELOC_CRIS_GLOB_DAT
4020ENUMX
4021 BFD_RELOC_CRIS_JUMP_SLOT
4022ENUMX
4023 BFD_RELOC_CRIS_RELATIVE
4024ENUMDOC
4025 Relocs used in ELF shared libraries for CRIS.
4026ENUM
4027 BFD_RELOC_CRIS_32_GOT
4028ENUMDOC
4029 32-bit offset to symbol-entry within GOT.
4030ENUM
4031 BFD_RELOC_CRIS_16_GOT
4032ENUMDOC
4033 16-bit offset to symbol-entry within GOT.
4034ENUM
4035 BFD_RELOC_CRIS_32_GOTPLT
4036ENUMDOC
4037 32-bit offset to symbol-entry within GOT, with PLT handling.
4038ENUM
4039 BFD_RELOC_CRIS_16_GOTPLT
4040ENUMDOC
4041 16-bit offset to symbol-entry within GOT, with PLT handling.
4042ENUM
4043 BFD_RELOC_CRIS_32_GOTREL
4044ENUMDOC
4045 32-bit offset to symbol, relative to GOT.
4046ENUM
4047 BFD_RELOC_CRIS_32_PLT_GOTREL
4048ENUMDOC
4049 32-bit offset to symbol with PLT entry, relative to GOT.
4050ENUM
4051 BFD_RELOC_CRIS_32_PLT_PCREL
4052ENUMDOC
4053 32-bit offset to symbol with PLT entry, relative to this relocation.
06c15ad7 4054
a87fdb8d
JE
4055ENUM
4056 BFD_RELOC_860_COPY
4057ENUMX
4058 BFD_RELOC_860_GLOB_DAT
4059ENUMX
4060 BFD_RELOC_860_JUMP_SLOT
4061ENUMX
4062 BFD_RELOC_860_RELATIVE
4063ENUMX
4064 BFD_RELOC_860_PC26
4065ENUMX
4066 BFD_RELOC_860_PLT26
4067ENUMX
4068 BFD_RELOC_860_PC16
4069ENUMX
4070 BFD_RELOC_860_LOW0
4071ENUMX
4072 BFD_RELOC_860_SPLIT0
4073ENUMX
4074 BFD_RELOC_860_LOW1
4075ENUMX
4076 BFD_RELOC_860_SPLIT1
4077ENUMX
4078 BFD_RELOC_860_LOW2
4079ENUMX
4080 BFD_RELOC_860_SPLIT2
4081ENUMX
4082 BFD_RELOC_860_LOW3
4083ENUMX
4084 BFD_RELOC_860_LOGOT0
4085ENUMX
4086 BFD_RELOC_860_SPGOT0
4087ENUMX
4088 BFD_RELOC_860_LOGOT1
4089ENUMX
4090 BFD_RELOC_860_SPGOT1
4091ENUMX
4092 BFD_RELOC_860_LOGOTOFF0
4093ENUMX
4094 BFD_RELOC_860_SPGOTOFF0
4095ENUMX
4096 BFD_RELOC_860_LOGOTOFF1
4097ENUMX
4098 BFD_RELOC_860_SPGOTOFF1
4099ENUMX
4100 BFD_RELOC_860_LOGOTOFF2
4101ENUMX
4102 BFD_RELOC_860_LOGOTOFF3
4103ENUMX
4104 BFD_RELOC_860_LOPC
4105ENUMX
4106 BFD_RELOC_860_HIGHADJ
4107ENUMX
4108 BFD_RELOC_860_HAGOT
4109ENUMX
4110 BFD_RELOC_860_HAGOTOFF
4111ENUMX
4112 BFD_RELOC_860_HAPC
4113ENUMX
4114 BFD_RELOC_860_HIGH
4115ENUMX
4116 BFD_RELOC_860_HIGOT
4117ENUMX
4118 BFD_RELOC_860_HIGOTOFF
4119ENUMDOC
4120 Intel i860 Relocations.
4121
b3baf5d0
NC
4122ENUM
4123 BFD_RELOC_OPENRISC_ABS_26
4124ENUMX
4125 BFD_RELOC_OPENRISC_REL_26
4126ENUMDOC
4127 OpenRISC Relocations.
4128
e01b0e69
JR
4129ENUM
4130 BFD_RELOC_H8_DIR16A8
4131ENUMX
4132 BFD_RELOC_H8_DIR16R8
4133ENUMX
4134 BFD_RELOC_H8_DIR24A8
4135ENUMX
4136 BFD_RELOC_H8_DIR24R8
4137ENUMX
4138 BFD_RELOC_H8_DIR32A16
4139ENUMDOC
4140 H8 elf Relocations.
4141
93fbbb04
GK
4142ENUM
4143 BFD_RELOC_XSTORMY16_REL_12
5fd63999
DD
4144ENUMX
4145 BFD_RELOC_XSTORMY16_12
93fbbb04
GK
4146ENUMX
4147 BFD_RELOC_XSTORMY16_24
4148ENUMX
4149 BFD_RELOC_XSTORMY16_FPTR16
4150ENUMDOC
4151 Sony Xstormy16 Relocations.
4152
90ace9e9
JT
4153ENUM
4154 BFD_RELOC_VAX_GLOB_DAT
4155ENUMX
4156 BFD_RELOC_VAX_JMP_SLOT
4157ENUMX
4158 BFD_RELOC_VAX_RELATIVE
4159ENUMDOC
4160 Relocations used by VAX ELF.
2469cfa2
NC
4161
4162ENUM
4163 BFD_RELOC_MSP430_10_PCREL
4164ENUMX
4165 BFD_RELOC_MSP430_16_PCREL
4166ENUMX
4167 BFD_RELOC_MSP430_16
4168ENUMX
4169 BFD_RELOC_MSP430_16_PCREL_BYTE
4170ENUMX
4171 BFD_RELOC_MSP430_16_BYTE
b18c562e
NC
4172ENUMX
4173 BFD_RELOC_MSP430_2X_PCREL
4174ENUMX
4175 BFD_RELOC_MSP430_RL_PCREL
2469cfa2
NC
4176ENUMDOC
4177 msp430 specific relocation codes
90ace9e9 4178
a75473eb
SC
4179ENUM
4180 BFD_RELOC_IQ2000_OFFSET_16
4181ENUMX
4182 BFD_RELOC_IQ2000_OFFSET_21
4183ENUMX
4184 BFD_RELOC_IQ2000_UHI16
4185ENUMDOC
4186 IQ2000 Relocations.
4187
e0001a05
NC
4188ENUM
4189 BFD_RELOC_XTENSA_RTLD
4190ENUMDOC
4191 Special Xtensa relocation used only by PLT entries in ELF shared
4192 objects to indicate that the runtime linker should set the value
4193 to one of its own internal functions or data structures.
4194ENUM
4195 BFD_RELOC_XTENSA_GLOB_DAT
4196ENUMX
4197 BFD_RELOC_XTENSA_JMP_SLOT
4198ENUMX
4199 BFD_RELOC_XTENSA_RELATIVE
4200ENUMDOC
4201 Xtensa relocations for ELF shared objects.
4202ENUM
4203 BFD_RELOC_XTENSA_PLT
4204ENUMDOC
4205 Xtensa relocation used in ELF object files for symbols that may require
4206 PLT entries. Otherwise, this is just a generic 32-bit relocation.
43cd72b9
BW
4207ENUM
4208 BFD_RELOC_XTENSA_DIFF8
4209ENUMX
4210 BFD_RELOC_XTENSA_DIFF16
4211ENUMX
4212 BFD_RELOC_XTENSA_DIFF32
4213ENUMDOC
4214 Xtensa relocations to mark the difference of two local symbols.
4215 These are only needed to support linker relaxation and can be ignored
4216 when not relaxing. The field is set to the value of the difference
4217 assuming no relaxation. The relocation encodes the position of the
4218 first symbol so the linker can determine whether to adjust the field
4219 value.
4220ENUM
4221 BFD_RELOC_XTENSA_SLOT0_OP
4222ENUMX
4223 BFD_RELOC_XTENSA_SLOT1_OP
4224ENUMX
4225 BFD_RELOC_XTENSA_SLOT2_OP
4226ENUMX
4227 BFD_RELOC_XTENSA_SLOT3_OP
4228ENUMX
4229 BFD_RELOC_XTENSA_SLOT4_OP
4230ENUMX
4231 BFD_RELOC_XTENSA_SLOT5_OP
4232ENUMX
4233 BFD_RELOC_XTENSA_SLOT6_OP
4234ENUMX
4235 BFD_RELOC_XTENSA_SLOT7_OP
4236ENUMX
4237 BFD_RELOC_XTENSA_SLOT8_OP
4238ENUMX
4239 BFD_RELOC_XTENSA_SLOT9_OP
4240ENUMX
4241 BFD_RELOC_XTENSA_SLOT10_OP
4242ENUMX
4243 BFD_RELOC_XTENSA_SLOT11_OP
4244ENUMX
4245 BFD_RELOC_XTENSA_SLOT12_OP
4246ENUMX
4247 BFD_RELOC_XTENSA_SLOT13_OP
4248ENUMX
4249 BFD_RELOC_XTENSA_SLOT14_OP
4250ENUMDOC
4251 Generic Xtensa relocations for instruction operands. Only the slot
4252 number is encoded in the relocation. The relocation applies to the
4253 last PC-relative immediate operand, or if there are no PC-relative
4254 immediates, to the last immediate operand.
4255ENUM
4256 BFD_RELOC_XTENSA_SLOT0_ALT
4257ENUMX
4258 BFD_RELOC_XTENSA_SLOT1_ALT
4259ENUMX
4260 BFD_RELOC_XTENSA_SLOT2_ALT
4261ENUMX
4262 BFD_RELOC_XTENSA_SLOT3_ALT
4263ENUMX
4264 BFD_RELOC_XTENSA_SLOT4_ALT
4265ENUMX
4266 BFD_RELOC_XTENSA_SLOT5_ALT
4267ENUMX
4268 BFD_RELOC_XTENSA_SLOT6_ALT
4269ENUMX
4270 BFD_RELOC_XTENSA_SLOT7_ALT
4271ENUMX
4272 BFD_RELOC_XTENSA_SLOT8_ALT
4273ENUMX
4274 BFD_RELOC_XTENSA_SLOT9_ALT
4275ENUMX
4276 BFD_RELOC_XTENSA_SLOT10_ALT
4277ENUMX
4278 BFD_RELOC_XTENSA_SLOT11_ALT
4279ENUMX
4280 BFD_RELOC_XTENSA_SLOT12_ALT
4281ENUMX
4282 BFD_RELOC_XTENSA_SLOT13_ALT
4283ENUMX
4284 BFD_RELOC_XTENSA_SLOT14_ALT
4285ENUMDOC
4286 Alternate Xtensa relocations. Only the slot is encoded in the
4287 relocation. The meaning of these relocations is opcode-specific.
e0001a05
NC
4288ENUM
4289 BFD_RELOC_XTENSA_OP0
4290ENUMX
4291 BFD_RELOC_XTENSA_OP1
4292ENUMX
4293 BFD_RELOC_XTENSA_OP2
4294ENUMDOC
43cd72b9
BW
4295 Xtensa relocations for backward compatibility. These have all been
4296 replaced by BFD_RELOC_XTENSA_SLOT0_OP.
e0001a05
NC
4297ENUM
4298 BFD_RELOC_XTENSA_ASM_EXPAND
4299ENUMDOC
4300 Xtensa relocation to mark that the assembler expanded the
4301 instructions from an original target. The expansion size is
4302 encoded in the reloc size.
4303ENUM
4304 BFD_RELOC_XTENSA_ASM_SIMPLIFY
4305ENUMDOC
4306 Xtensa relocation to mark that the linker should simplify
4307 assembler-expanded instructions. This is commonly used
4308 internally by the linker after analysis of a
4309 BFD_RELOC_XTENSA_ASM_EXPAND.
4310
252b5132
RH
4311ENDSENUM
4312 BFD_RELOC_UNUSED
4313CODE_FRAGMENT
4314.
4315.typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4316*/
4317
252b5132
RH
4318/*
4319FUNCTION
4320 bfd_reloc_type_lookup
4321
4322SYNOPSIS
c58b9523
AM
4323 reloc_howto_type *bfd_reloc_type_lookup
4324 (bfd *abfd, bfd_reloc_code_real_type code);
252b5132
RH
4325
4326DESCRIPTION
4327 Return a pointer to a howto structure which, when
4328 invoked, will perform the relocation @var{code} on data from the
4329 architecture noted.
4330
4331*/
4332
252b5132 4333reloc_howto_type *
c58b9523 4334bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
4335{
4336 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4337}
4338
4339static reloc_howto_type bfd_howto_32 =
b34976b6 4340HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
252b5132 4341
252b5132
RH
4342/*
4343INTERNAL_FUNCTION
4344 bfd_default_reloc_type_lookup
4345
4346SYNOPSIS
4347 reloc_howto_type *bfd_default_reloc_type_lookup
c58b9523 4348 (bfd *abfd, bfd_reloc_code_real_type code);
252b5132
RH
4349
4350DESCRIPTION
4351 Provides a default relocation lookup routine for any architecture.
4352
252b5132
RH
4353*/
4354
4355reloc_howto_type *
c58b9523 4356bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
4357{
4358 switch (code)
4359 {
4360 case BFD_RELOC_CTOR:
4361 /* The type of reloc used in a ctor, which will be as wide as the
4362 address - so either a 64, 32, or 16 bitter. */
4363 switch (bfd_get_arch_info (abfd)->bits_per_address)
4364 {
4365 case 64:
4366 BFD_FAIL ();
4367 case 32:
4368 return &bfd_howto_32;
4369 case 16:
4370 BFD_FAIL ();
4371 default:
4372 BFD_FAIL ();
4373 }
4374 default:
4375 BFD_FAIL ();
4376 }
c58b9523 4377 return NULL;
252b5132
RH
4378}
4379
4380/*
4381FUNCTION
4382 bfd_get_reloc_code_name
4383
4384SYNOPSIS
4385 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4386
4387DESCRIPTION
4388 Provides a printable name for the supplied relocation code.
4389 Useful mainly for printing error messages.
4390*/
4391
4392const char *
c58b9523 4393bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
252b5132 4394{
c58b9523 4395 if (code > BFD_RELOC_UNUSED)
252b5132 4396 return 0;
c58b9523 4397 return bfd_reloc_code_real_names[code];
252b5132
RH
4398}
4399
4400/*
4401INTERNAL_FUNCTION
4402 bfd_generic_relax_section
4403
4404SYNOPSIS
b34976b6 4405 bfd_boolean bfd_generic_relax_section
c58b9523
AM
4406 (bfd *abfd,
4407 asection *section,
4408 struct bfd_link_info *,
4409 bfd_boolean *);
252b5132
RH
4410
4411DESCRIPTION
4412 Provides default handling for relaxing for back ends which
eea6121a 4413 don't do relaxing.
252b5132
RH
4414*/
4415
b34976b6 4416bfd_boolean
c58b9523
AM
4417bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4418 asection *section ATTRIBUTE_UNUSED,
4419 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4420 bfd_boolean *again)
252b5132 4421{
b34976b6
AM
4422 *again = FALSE;
4423 return TRUE;
252b5132
RH
4424}
4425
4426/*
4427INTERNAL_FUNCTION
4428 bfd_generic_gc_sections
4429
4430SYNOPSIS
b34976b6 4431 bfd_boolean bfd_generic_gc_sections
c58b9523 4432 (bfd *, struct bfd_link_info *);
252b5132
RH
4433
4434DESCRIPTION
4435 Provides default handling for relaxing for back ends which
4436 don't do section gc -- i.e., does nothing.
4437*/
4438
b34976b6 4439bfd_boolean
c58b9523
AM
4440bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4441 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
252b5132 4442{
b34976b6 4443 return TRUE;
252b5132
RH
4444}
4445
8550eb6e
JJ
4446/*
4447INTERNAL_FUNCTION
4448 bfd_generic_merge_sections
4449
4450SYNOPSIS
b34976b6 4451 bfd_boolean bfd_generic_merge_sections
c58b9523 4452 (bfd *, struct bfd_link_info *);
8550eb6e
JJ
4453
4454DESCRIPTION
4455 Provides default handling for SEC_MERGE section merging for back ends
4456 which don't have SEC_MERGE support -- i.e., does nothing.
4457*/
4458
b34976b6 4459bfd_boolean
c58b9523
AM
4460bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4461 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
8550eb6e 4462{
b34976b6 4463 return TRUE;
8550eb6e
JJ
4464}
4465
252b5132
RH
4466/*
4467INTERNAL_FUNCTION
4468 bfd_generic_get_relocated_section_contents
4469
4470SYNOPSIS
c58b9523
AM
4471 bfd_byte *bfd_generic_get_relocated_section_contents
4472 (bfd *abfd,
4473 struct bfd_link_info *link_info,
4474 struct bfd_link_order *link_order,
4475 bfd_byte *data,
4476 bfd_boolean relocatable,
4477 asymbol **symbols);
252b5132
RH
4478
4479DESCRIPTION
4480 Provides default handling of relocation effort for back ends
4481 which can't be bothered to do it efficiently.
4482
4483*/
4484
4485bfd_byte *
c58b9523
AM
4486bfd_generic_get_relocated_section_contents (bfd *abfd,
4487 struct bfd_link_info *link_info,
4488 struct bfd_link_order *link_order,
4489 bfd_byte *data,
4490 bfd_boolean relocatable,
4491 asymbol **symbols)
252b5132 4492{
b5f79c76 4493 /* Get enough memory to hold the stuff. */
252b5132
RH
4494 bfd *input_bfd = link_order->u.indirect.section->owner;
4495 asection *input_section = link_order->u.indirect.section;
4496
4497 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4498 arelent **reloc_vector = NULL;
4499 long reloc_count;
eea6121a 4500 bfd_size_type sz;
252b5132
RH
4501
4502 if (reloc_size < 0)
4503 goto error_return;
4504
c58b9523 4505 reloc_vector = bfd_malloc (reloc_size);
252b5132
RH
4506 if (reloc_vector == NULL && reloc_size != 0)
4507 goto error_return;
4508
b5f79c76 4509 /* Read in the section. */
eea6121a
AM
4510 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4511 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
252b5132
RH
4512 goto error_return;
4513
252b5132
RH
4514 reloc_count = bfd_canonicalize_reloc (input_bfd,
4515 input_section,
4516 reloc_vector,
4517 symbols);
4518 if (reloc_count < 0)
4519 goto error_return;
4520
4521 if (reloc_count > 0)
4522 {
4523 arelent **parent;
c58b9523 4524 for (parent = reloc_vector; *parent != NULL; parent++)
252b5132 4525 {
c58b9523 4526 char *error_message = NULL;
252b5132
RH
4527 bfd_reloc_status_type r =
4528 bfd_perform_relocation (input_bfd,
4529 *parent,
c58b9523 4530 data,
252b5132 4531 input_section,
c58b9523 4532 relocatable ? abfd : NULL,
252b5132
RH
4533 &error_message);
4534
1049f94e 4535 if (relocatable)
252b5132
RH
4536 {
4537 asection *os = input_section->output_section;
4538
b5f79c76 4539 /* A partial link, so keep the relocs. */
252b5132
RH
4540 os->orelocation[os->reloc_count] = *parent;
4541 os->reloc_count++;
4542 }
4543
4544 if (r != bfd_reloc_ok)
4545 {
4546 switch (r)
4547 {
4548 case bfd_reloc_undefined:
4549 if (!((*link_info->callbacks->undefined_symbol)
4550 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
5cc7c785 4551 input_bfd, input_section, (*parent)->address,
b34976b6 4552 TRUE)))
252b5132
RH
4553 goto error_return;
4554 break;
4555 case bfd_reloc_dangerous:
c58b9523 4556 BFD_ASSERT (error_message != NULL);
252b5132
RH
4557 if (!((*link_info->callbacks->reloc_dangerous)
4558 (link_info, error_message, input_bfd, input_section,
4559 (*parent)->address)))
4560 goto error_return;
4561 break;
4562 case bfd_reloc_overflow:
4563 if (!((*link_info->callbacks->reloc_overflow)
dfeffb9f
L
4564 (link_info, NULL,
4565 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
252b5132
RH
4566 (*parent)->howto->name, (*parent)->addend,
4567 input_bfd, input_section, (*parent)->address)))
4568 goto error_return;
4569 break;
4570 case bfd_reloc_outofrange:
4571 default:
4572 abort ();
4573 break;
4574 }
4575
4576 }
4577 }
4578 }
4579 if (reloc_vector != NULL)
4580 free (reloc_vector);
4581 return data;
4582
4583error_return:
4584 if (reloc_vector != NULL)
4585 free (reloc_vector);
4586 return NULL;
4587}
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