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* elf32-arm.c (elf32_arm_check_relocs): Increment count for all
[deliverable/binutils-gdb.git] / bfd / reloc.c
1 /* BFD support for handling relocation entries.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
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.
13
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.
18
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. */
22
23 /*
24 SECTION
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
29 en-masse and translated into an internal form. A common
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 /*
55 DOCDD
56 INODE
57 typedef arelent, howto manager, Relocations, Relocations
58
59 SUBSECTION
60 typedef arelent
61
62 This is the structure of a relocation entry:
63
64 CODE_FRAGMENT
65 .
66 .typedef enum bfd_reloc_status
67 .{
68 . {* No errors detected. *}
69 . bfd_reloc_ok,
70 .
71 . {* The relocation was performed, but there was an overflow. *}
72 . bfd_reloc_overflow,
73 .
74 . {* The address to relocate was not within the section supplied. *}
75 . bfd_reloc_outofrange,
76 .
77 . {* Used by special functions. *}
78 . bfd_reloc_continue,
79 .
80 . {* Unsupported relocation size requested. *}
81 . bfd_reloc_notsupported,
82 .
83 . {* Unused. *}
84 . bfd_reloc_other,
85 .
86 . {* The symbol to relocate against was undefined. *}
87 . bfd_reloc_undefined,
88 .
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. *}
93 . bfd_reloc_dangerous
94 . }
95 . bfd_reloc_status_type;
96 .
97 .
98 .typedef struct reloc_cache_entry
99 .{
100 . {* A pointer into the canonical table of pointers. *}
101 . struct bfd_symbol **sym_ptr_ptr;
102 .
103 . {* offset in section. *}
104 . bfd_size_type address;
105 .
106 . {* addend for relocation value. *}
107 . bfd_vma addend;
108 .
109 . {* Pointer to how to perform the required relocation. *}
110 . reloc_howto_type *howto;
111 .
112 .}
113 .arelent;
114 .
115 */
116
117 /*
118 DESCRIPTION
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
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.
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
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
166 This could create a reloc pointing to <<foo>>, but leave the
167 offset in the data, something like:
168
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
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
183 | or.u r13,r0,hi16(_foo+0x12345678)
184 | ld.b r2,r13,lo16(_foo+0x12345678)
185 | jmp r1
186
187 This should create two relocs, both pointing to <<_foo>>, and with
188 0x12340000 in their addend field. The data would consist of:
189
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
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
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
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 /*
245 SUBSUBSECTION
246 <<enum complain_overflow>>
247
248 Indicates what sort of overflow checking should be done when
249 performing a relocation.
250
251 CODE_FRAGMENT
252 .
253 .enum complain_overflow
254 .{
255 . {* Do not complain on overflow. *}
256 . complain_overflow_dont,
257 .
258 . {* Complain if the bitfield overflows, whether it is considered
259 . as signed or unsigned. *}
260 . complain_overflow_bitfield,
261 .
262 . {* Complain if the value overflows when considered as signed
263 . number. *}
264 . complain_overflow_signed,
265 .
266 . {* Complain if the value overflows when considered as an
267 . unsigned number. *}
268 . complain_overflow_unsigned
269 .};
270
271 */
272
273 /*
274 SUBSUBSECTION
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
280 CODE_FRAGMENT
281 .struct bfd_symbol; {* Forward declaration. *}
282 .
283 .struct reloc_howto_struct
284 .{
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. *}
291 . unsigned int type;
292 .
293 . {* The value the final relocation is shifted right by. This drops
294 . unwanted data from the relocation. *}
295 . unsigned int rightshift;
296 .
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. *}
300 . int size;
301 .
302 . {* The number of bits in the item to be relocated. This is used
303 . when doing overflow checking. *}
304 . unsigned int bitsize;
305 .
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. *}
310 . bfd_boolean pc_relative;
311 .
312 . {* The bit position of the reloc value in the destination.
313 . The relocated value is left shifted by this amount. *}
314 . unsigned int bitpos;
315 .
316 . {* What type of overflow error should be checked for when
317 . relocating. *}
318 . enum complain_overflow complain_on_overflow;
319 .
320 . {* If this field is non null, then the supplied function is
321 . called rather than the normal function. This allows really
322 . strange relocation methods to be accommodated (e.g., i960 callj
323 . instructions). *}
324 . bfd_reloc_status_type (*special_function)
325 . (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
326 . bfd *, char **);
327 .
328 . {* The textual name of the relocation type. *}
329 . char *name;
330 .
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. *}
346 . bfd_boolean partial_inplace;
347 .
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. *}
356 . bfd_vma src_mask;
357 .
358 . {* dst_mask selects which parts of the instruction (or data) are
359 . replaced with a relocated value. *}
360 . bfd_vma dst_mask;
361 .
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. *}
368 . bfd_boolean pcrel_offset;
369 .};
370 .
371 */
372
373 /*
374 FUNCTION
375 The HOWTO Macro
376
377 DESCRIPTION
378 The HOWTO define is horrible and will go away.
379
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 }
382
383 DESCRIPTION
384 And will be replaced with the totally magic way. But for the
385 moment, we are compatible, so do it this way.
386
387 .#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
388 . HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
389 . NAME, FALSE, 0, 0, IN)
390 .
391
392 DESCRIPTION
393 This is used to fill in an empty howto entry in an array.
394
395 .#define EMPTY_HOWTO(C) \
396 . HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
397 . NULL, FALSE, 0, 0, FALSE)
398 .
399
400 DESCRIPTION
401 Helper routine to turn a symbol into a relocation value.
402
403 .#define HOWTO_PREPARE(relocation, symbol) \
404 . { \
405 . if (symbol != NULL) \
406 . { \
407 . if (bfd_is_com_section (symbol->section)) \
408 . { \
409 . relocation = 0; \
410 . } \
411 . else \
412 . { \
413 . relocation = symbol->value; \
414 . } \
415 . } \
416 . }
417 .
418 */
419
420 /*
421 FUNCTION
422 bfd_get_reloc_size
423
424 SYNOPSIS
425 unsigned int bfd_get_reloc_size (reloc_howto_type *);
426
427 DESCRIPTION
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
432 unsigned int
433 bfd_get_reloc_size (reloc_howto_type *howto)
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 /*
449 TYPEDEF
450 arelent_chain
451
452 DESCRIPTION
453
454 How relocs are tied together in an <<asection>>:
455
456 .typedef struct relent_chain
457 .{
458 . arelent relent;
459 . struct relent_chain *next;
460 .}
461 .arelent_chain;
462 .
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 /*
469 FUNCTION
470 bfd_check_overflow
471
472 SYNOPSIS
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);
479
480 DESCRIPTION
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
489 bfd_reloc_status_type
490 bfd_check_overflow (enum complain_overflow how,
491 unsigned int bitsize,
492 unsigned int rightshift,
493 unsigned int addrsize,
494 bfd_vma relocation)
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
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. */
536 a >>= rightshift;
537 ss = a & ~ fieldmask;
538 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
539 flag = bfd_reloc_overflow;
540 break;
541
542 default:
543 abort ();
544 }
545
546 return flag;
547 }
548
549 /*
550 FUNCTION
551 bfd_perform_relocation
552
553 SYNOPSIS
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);
561
562 DESCRIPTION
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
580 bfd_reloc_status_type
581 bfd_perform_relocation (bfd *abfd,
582 arelent *reloc_entry,
583 void *data,
584 asection *input_section,
585 bfd *output_bfd,
586 char **error_message)
587 {
588 bfd_vma relocation;
589 bfd_reloc_status_type flag = bfd_reloc_ok;
590 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
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)
598 && output_bfd != NULL)
599 {
600 reloc_entry->address += input_section->output_offset;
601 return bfd_reloc_ok;
602 }
603
604 /* If we are not producing relocatable output, return an error if
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
609 && output_bfd == NULL)
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? */
626 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
627 return bfd_reloc_outofrange;
628
629 /* Work out which section the relocation is targeted at and the
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
638 reloc_target_output_section = symbol->section->output_section;
639
640 /* Convert input-section-relative symbol value to absolute. */
641 if ((output_bfd && ! howto->partial_inplace)
642 || reloc_target_output_section == NULL)
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
655 if (howto->pc_relative)
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
668 i386-aout, pcrel_offset is FALSE. Some other targets do not
669 include the position of the location; for example, m88kbcs,
670 or ELF. For those targets, pcrel_offset is TRUE.
671
672 If we are producing relocatable output, then we must ensure
673 that this reloc will be correctly computed when the final
674 relocation is done. If pcrel_offset is FALSE we want to wind
675 up with the negative of the location within the section,
676 which means we must adjust the existing addend by the change
677 in the location within the section. If pcrel_offset is TRUE
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
681 producing relocatable output it is not what the code
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
688 if (howto->pcrel_offset)
689 relocation -= reloc_entry->address;
690 }
691
692 if (output_bfd != NULL)
693 {
694 if (! howto->partial_inplace)
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
715 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
716 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
717 {
718 /* For m68k-coff, the addend was being subtracted twice during
719 relocation with -r. Removing the line below this comment
720 fixes that problem; see PR 2953.
721
722 However, Ian wrote the following, regarding removing the line below,
723 which explains why it is still enabled: --djm
724
725 If you put a patch like that into BFD you need to check all the COFF
726 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
727 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
728 problem in a different way. There may very well be a reason that the
729 code works as it does.
730
731 Hmmm. The first obvious point is that bfd_perform_relocation should
732 not have any tests that depend upon the flavour. It's seem like
733 entirely the wrong place for such a thing. The second obvious point
734 is that the current code ignores the reloc addend when producing
735 relocatable output for COFF. That's peculiar. In fact, I really
736 have no idea what the point of the line you want to remove is.
737
738 A typical COFF reloc subtracts the old value of the symbol and adds in
739 the new value to the location in the object file (if it's a pc
740 relative reloc it adds the difference between the symbol value and the
741 location). When relocating we need to preserve that property.
742
743 BFD handles this by setting the addend to the negative of the old
744 value of the symbol. Unfortunately it handles common symbols in a
745 non-standard way (it doesn't subtract the old value) but that's a
746 different story (we can't change it without losing backward
747 compatibility with old object files) (coff-i386 does subtract the old
748 value, to be compatible with existing coff-i386 targets, like SCO).
749
750 So everything works fine when not producing relocatable output. When
751 we are producing relocatable output, logically we should do exactly
752 what we do when not producing relocatable output. Therefore, your
753 patch is correct. In fact, it should probably always just set
754 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
755 add the value into the object file. This won't hurt the COFF code,
756 which doesn't use the addend; I'm not sure what it will do to other
757 formats (the thing to check for would be whether any formats both use
758 the addend and set partial_inplace).
759
760 When I wanted to make coff-i386 produce relocatable output, I ran
761 into the problem that you are running into: I wanted to remove that
762 line. Rather than risk it, I made the coff-i386 relocs use a special
763 function; it's coff_i386_reloc in coff-i386.c. The function
764 specifically adds the addend field into the object file, knowing that
765 bfd_perform_relocation is not going to. If you remove that line, then
766 coff-i386.c will wind up adding the addend field in twice. It's
767 trivial to fix; it just needs to be done.
768
769 The problem with removing the line is just that it may break some
770 working code. With BFD it's hard to be sure of anything. The right
771 way to deal with this is simply to build and test at least all the
772 supported COFF targets. It should be straightforward if time and disk
773 space consuming. For each target:
774 1) build the linker
775 2) generate some executable, and link it using -r (I would
776 probably use paranoia.o and link against newlib/libc.a, which
777 for all the supported targets would be available in
778 /usr/cygnus/progressive/H-host/target/lib/libc.a).
779 3) make the change to reloc.c
780 4) rebuild the linker
781 5) repeat step 2
782 6) if the resulting object files are the same, you have at least
783 made it no worse
784 7) if they are different you have to figure out which version is
785 right
786 */
787 relocation -= reloc_entry->addend;
788 reloc_entry->addend = 0;
789 }
790 else
791 {
792 reloc_entry->addend = relocation;
793 }
794 }
795 }
796 else
797 {
798 reloc_entry->addend = 0;
799 }
800
801 /* FIXME: This overflow checking is incomplete, because the value
802 might have overflowed before we get here. For a correct check we
803 need to compute the value in a size larger than bitsize, but we
804 can't reasonably do that for a reloc the same size as a host
805 machine word.
806 FIXME: We should also do overflow checking on the result after
807 adding in the value contained in the object file. */
808 if (howto->complain_on_overflow != complain_overflow_dont
809 && flag == bfd_reloc_ok)
810 flag = bfd_check_overflow (howto->complain_on_overflow,
811 howto->bitsize,
812 howto->rightshift,
813 bfd_arch_bits_per_address (abfd),
814 relocation);
815
816 /* Either we are relocating all the way, or we don't want to apply
817 the relocation to the reloc entry (probably because there isn't
818 any room in the output format to describe addends to relocs). */
819
820 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
821 (OSF version 1.3, compiler version 3.11). It miscompiles the
822 following program:
823
824 struct str
825 {
826 unsigned int i0;
827 } s = { 0 };
828
829 int
830 main ()
831 {
832 unsigned long x;
833
834 x = 0x100000000;
835 x <<= (unsigned long) s.i0;
836 if (x == 0)
837 printf ("failed\n");
838 else
839 printf ("succeeded (%lx)\n", x);
840 }
841 */
842
843 relocation >>= (bfd_vma) howto->rightshift;
844
845 /* Shift everything up to where it's going to be used. */
846 relocation <<= (bfd_vma) howto->bitpos;
847
848 /* Wait for the day when all have the mask in them. */
849
850 /* What we do:
851 i instruction to be left alone
852 o offset within instruction
853 r relocation offset to apply
854 S src mask
855 D dst mask
856 N ~dst mask
857 A part 1
858 B part 2
859 R result
860
861 Do this:
862 (( i i i i i o o o o o from bfd_get<size>
863 and S S S S S) to get the size offset we want
864 + r r r r r r r r r r) to get the final value to place
865 and D D D D D to chop to right size
866 -----------------------
867 = A A A A A
868 And this:
869 ( i i i i i o o o o o from bfd_get<size>
870 and N N N N N ) get instruction
871 -----------------------
872 = B B B B B
873
874 And then:
875 ( B B B B B
876 or A A A A A)
877 -----------------------
878 = R R R R R R R R R R put into bfd_put<size>
879 */
880
881 #define DOIT(x) \
882 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
883
884 switch (howto->size)
885 {
886 case 0:
887 {
888 char x = bfd_get_8 (abfd, (char *) data + octets);
889 DOIT (x);
890 bfd_put_8 (abfd, x, (unsigned char *) data + octets);
891 }
892 break;
893
894 case 1:
895 {
896 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
897 DOIT (x);
898 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
899 }
900 break;
901 case 2:
902 {
903 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
904 DOIT (x);
905 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
906 }
907 break;
908 case -2:
909 {
910 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
911 relocation = -relocation;
912 DOIT (x);
913 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
914 }
915 break;
916
917 case -1:
918 {
919 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
920 relocation = -relocation;
921 DOIT (x);
922 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
923 }
924 break;
925
926 case 3:
927 /* Do nothing */
928 break;
929
930 case 4:
931 #ifdef BFD64
932 {
933 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
934 DOIT (x);
935 bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
936 }
937 #else
938 abort ();
939 #endif
940 break;
941 default:
942 return bfd_reloc_other;
943 }
944
945 return flag;
946 }
947
948 /*
949 FUNCTION
950 bfd_install_relocation
951
952 SYNOPSIS
953 bfd_reloc_status_type bfd_install_relocation
954 (bfd *abfd,
955 arelent *reloc_entry,
956 void *data, bfd_vma data_start,
957 asection *input_section,
958 char **error_message);
959
960 DESCRIPTION
961 This looks remarkably like <<bfd_perform_relocation>>, except it
962 does not expect that the section contents have been filled in.
963 I.e., it's suitable for use when creating, rather than applying
964 a relocation.
965
966 For now, this function should be considered reserved for the
967 assembler.
968 */
969
970 bfd_reloc_status_type
971 bfd_install_relocation (bfd *abfd,
972 arelent *reloc_entry,
973 void *data_start,
974 bfd_vma data_start_offset,
975 asection *input_section,
976 char **error_message)
977 {
978 bfd_vma relocation;
979 bfd_reloc_status_type flag = bfd_reloc_ok;
980 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
981 bfd_vma output_base = 0;
982 reloc_howto_type *howto = reloc_entry->howto;
983 asection *reloc_target_output_section;
984 asymbol *symbol;
985 bfd_byte *data;
986
987 symbol = *(reloc_entry->sym_ptr_ptr);
988 if (bfd_is_abs_section (symbol->section))
989 {
990 reloc_entry->address += input_section->output_offset;
991 return bfd_reloc_ok;
992 }
993
994 /* If there is a function supplied to handle this relocation type,
995 call it. It'll return `bfd_reloc_continue' if further processing
996 can be done. */
997 if (howto->special_function)
998 {
999 bfd_reloc_status_type cont;
1000
1001 /* XXX - The special_function calls haven't been fixed up to deal
1002 with creating new relocations and section contents. */
1003 cont = howto->special_function (abfd, reloc_entry, symbol,
1004 /* XXX - Non-portable! */
1005 ((bfd_byte *) data_start
1006 - data_start_offset),
1007 input_section, abfd, error_message);
1008 if (cont != bfd_reloc_continue)
1009 return cont;
1010 }
1011
1012 /* Is the address of the relocation really within the section? */
1013 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1014 return bfd_reloc_outofrange;
1015
1016 /* Work out which section the relocation is targeted at and the
1017 initial relocation command value. */
1018
1019 /* Get symbol value. (Common symbols are special.) */
1020 if (bfd_is_com_section (symbol->section))
1021 relocation = 0;
1022 else
1023 relocation = symbol->value;
1024
1025 reloc_target_output_section = symbol->section->output_section;
1026
1027 /* Convert input-section-relative symbol value to absolute. */
1028 if (! howto->partial_inplace)
1029 output_base = 0;
1030 else
1031 output_base = reloc_target_output_section->vma;
1032
1033 relocation += output_base + symbol->section->output_offset;
1034
1035 /* Add in supplied addend. */
1036 relocation += reloc_entry->addend;
1037
1038 /* Here the variable relocation holds the final address of the
1039 symbol we are relocating against, plus any addend. */
1040
1041 if (howto->pc_relative)
1042 {
1043 /* This is a PC relative relocation. We want to set RELOCATION
1044 to the distance between the address of the symbol and the
1045 location. RELOCATION is already the address of the symbol.
1046
1047 We start by subtracting the address of the section containing
1048 the location.
1049
1050 If pcrel_offset is set, we must further subtract the position
1051 of the location within the section. Some targets arrange for
1052 the addend to be the negative of the position of the location
1053 within the section; for example, i386-aout does this. For
1054 i386-aout, pcrel_offset is FALSE. Some other targets do not
1055 include the position of the location; for example, m88kbcs,
1056 or ELF. For those targets, pcrel_offset is TRUE.
1057
1058 If we are producing relocatable output, then we must ensure
1059 that this reloc will be correctly computed when the final
1060 relocation is done. If pcrel_offset is FALSE we want to wind
1061 up with the negative of the location within the section,
1062 which means we must adjust the existing addend by the change
1063 in the location within the section. If pcrel_offset is TRUE
1064 we do not want to adjust the existing addend at all.
1065
1066 FIXME: This seems logical to me, but for the case of
1067 producing relocatable output it is not what the code
1068 actually does. I don't want to change it, because it seems
1069 far too likely that something will break. */
1070
1071 relocation -=
1072 input_section->output_section->vma + input_section->output_offset;
1073
1074 if (howto->pcrel_offset && howto->partial_inplace)
1075 relocation -= reloc_entry->address;
1076 }
1077
1078 if (! howto->partial_inplace)
1079 {
1080 /* This is a partial relocation, and we want to apply the relocation
1081 to the reloc entry rather than the raw data. Modify the reloc
1082 inplace to reflect what we now know. */
1083 reloc_entry->addend = relocation;
1084 reloc_entry->address += input_section->output_offset;
1085 return flag;
1086 }
1087 else
1088 {
1089 /* This is a partial relocation, but inplace, so modify the
1090 reloc record a bit.
1091
1092 If we've relocated with a symbol with a section, change
1093 into a ref to the section belonging to the symbol. */
1094 reloc_entry->address += input_section->output_offset;
1095
1096 /* WTF?? */
1097 if (abfd->xvec->flavour == bfd_target_coff_flavour
1098 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1099 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1100 {
1101
1102 /* For m68k-coff, the addend was being subtracted twice during
1103 relocation with -r. Removing the line below this comment
1104 fixes that problem; see PR 2953.
1105
1106 However, Ian wrote the following, regarding removing the line below,
1107 which explains why it is still enabled: --djm
1108
1109 If you put a patch like that into BFD you need to check all the COFF
1110 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
1111 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1112 problem in a different way. There may very well be a reason that the
1113 code works as it does.
1114
1115 Hmmm. The first obvious point is that bfd_install_relocation should
1116 not have any tests that depend upon the flavour. It's seem like
1117 entirely the wrong place for such a thing. The second obvious point
1118 is that the current code ignores the reloc addend when producing
1119 relocatable output for COFF. That's peculiar. In fact, I really
1120 have no idea what the point of the line you want to remove is.
1121
1122 A typical COFF reloc subtracts the old value of the symbol and adds in
1123 the new value to the location in the object file (if it's a pc
1124 relative reloc it adds the difference between the symbol value and the
1125 location). When relocating we need to preserve that property.
1126
1127 BFD handles this by setting the addend to the negative of the old
1128 value of the symbol. Unfortunately it handles common symbols in a
1129 non-standard way (it doesn't subtract the old value) but that's a
1130 different story (we can't change it without losing backward
1131 compatibility with old object files) (coff-i386 does subtract the old
1132 value, to be compatible with existing coff-i386 targets, like SCO).
1133
1134 So everything works fine when not producing relocatable output. When
1135 we are producing relocatable output, logically we should do exactly
1136 what we do when not producing relocatable output. Therefore, your
1137 patch is correct. In fact, it should probably always just set
1138 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1139 add the value into the object file. This won't hurt the COFF code,
1140 which doesn't use the addend; I'm not sure what it will do to other
1141 formats (the thing to check for would be whether any formats both use
1142 the addend and set partial_inplace).
1143
1144 When I wanted to make coff-i386 produce relocatable output, I ran
1145 into the problem that you are running into: I wanted to remove that
1146 line. Rather than risk it, I made the coff-i386 relocs use a special
1147 function; it's coff_i386_reloc in coff-i386.c. The function
1148 specifically adds the addend field into the object file, knowing that
1149 bfd_install_relocation is not going to. If you remove that line, then
1150 coff-i386.c will wind up adding the addend field in twice. It's
1151 trivial to fix; it just needs to be done.
1152
1153 The problem with removing the line is just that it may break some
1154 working code. With BFD it's hard to be sure of anything. The right
1155 way to deal with this is simply to build and test at least all the
1156 supported COFF targets. It should be straightforward if time and disk
1157 space consuming. For each target:
1158 1) build the linker
1159 2) generate some executable, and link it using -r (I would
1160 probably use paranoia.o and link against newlib/libc.a, which
1161 for all the supported targets would be available in
1162 /usr/cygnus/progressive/H-host/target/lib/libc.a).
1163 3) make the change to reloc.c
1164 4) rebuild the linker
1165 5) repeat step 2
1166 6) if the resulting object files are the same, you have at least
1167 made it no worse
1168 7) if they are different you have to figure out which version is
1169 right. */
1170 relocation -= reloc_entry->addend;
1171 reloc_entry->addend = 0;
1172 }
1173 else
1174 {
1175 reloc_entry->addend = relocation;
1176 }
1177 }
1178
1179 /* FIXME: This overflow checking is incomplete, because the value
1180 might have overflowed before we get here. For a correct check we
1181 need to compute the value in a size larger than bitsize, but we
1182 can't reasonably do that for a reloc the same size as a host
1183 machine word.
1184 FIXME: We should also do overflow checking on the result after
1185 adding in the value contained in the object file. */
1186 if (howto->complain_on_overflow != complain_overflow_dont)
1187 flag = bfd_check_overflow (howto->complain_on_overflow,
1188 howto->bitsize,
1189 howto->rightshift,
1190 bfd_arch_bits_per_address (abfd),
1191 relocation);
1192
1193 /* Either we are relocating all the way, or we don't want to apply
1194 the relocation to the reloc entry (probably because there isn't
1195 any room in the output format to describe addends to relocs). */
1196
1197 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1198 (OSF version 1.3, compiler version 3.11). It miscompiles the
1199 following program:
1200
1201 struct str
1202 {
1203 unsigned int i0;
1204 } s = { 0 };
1205
1206 int
1207 main ()
1208 {
1209 unsigned long x;
1210
1211 x = 0x100000000;
1212 x <<= (unsigned long) s.i0;
1213 if (x == 0)
1214 printf ("failed\n");
1215 else
1216 printf ("succeeded (%lx)\n", x);
1217 }
1218 */
1219
1220 relocation >>= (bfd_vma) howto->rightshift;
1221
1222 /* Shift everything up to where it's going to be used. */
1223 relocation <<= (bfd_vma) howto->bitpos;
1224
1225 /* Wait for the day when all have the mask in them. */
1226
1227 /* What we do:
1228 i instruction to be left alone
1229 o offset within instruction
1230 r relocation offset to apply
1231 S src mask
1232 D dst mask
1233 N ~dst mask
1234 A part 1
1235 B part 2
1236 R result
1237
1238 Do this:
1239 (( i i i i i o o o o o from bfd_get<size>
1240 and S S S S S) to get the size offset we want
1241 + r r r r r r r r r r) to get the final value to place
1242 and D D D D D to chop to right size
1243 -----------------------
1244 = A A A A A
1245 And this:
1246 ( i i i i i o o o o o from bfd_get<size>
1247 and N N N N N ) get instruction
1248 -----------------------
1249 = B B B B B
1250
1251 And then:
1252 ( B B B B B
1253 or A A A A A)
1254 -----------------------
1255 = R R R R R R R R R R put into bfd_put<size>
1256 */
1257
1258 #define DOIT(x) \
1259 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
1260
1261 data = (bfd_byte *) data_start + (octets - data_start_offset);
1262
1263 switch (howto->size)
1264 {
1265 case 0:
1266 {
1267 char x = bfd_get_8 (abfd, data);
1268 DOIT (x);
1269 bfd_put_8 (abfd, x, data);
1270 }
1271 break;
1272
1273 case 1:
1274 {
1275 short x = bfd_get_16 (abfd, data);
1276 DOIT (x);
1277 bfd_put_16 (abfd, (bfd_vma) x, data);
1278 }
1279 break;
1280 case 2:
1281 {
1282 long x = bfd_get_32 (abfd, data);
1283 DOIT (x);
1284 bfd_put_32 (abfd, (bfd_vma) x, data);
1285 }
1286 break;
1287 case -2:
1288 {
1289 long x = bfd_get_32 (abfd, data);
1290 relocation = -relocation;
1291 DOIT (x);
1292 bfd_put_32 (abfd, (bfd_vma) x, data);
1293 }
1294 break;
1295
1296 case 3:
1297 /* Do nothing */
1298 break;
1299
1300 case 4:
1301 {
1302 bfd_vma x = bfd_get_64 (abfd, data);
1303 DOIT (x);
1304 bfd_put_64 (abfd, x, data);
1305 }
1306 break;
1307 default:
1308 return bfd_reloc_other;
1309 }
1310
1311 return flag;
1312 }
1313
1314 /* This relocation routine is used by some of the backend linkers.
1315 They do not construct asymbol or arelent structures, so there is no
1316 reason for them to use bfd_perform_relocation. Also,
1317 bfd_perform_relocation is so hacked up it is easier to write a new
1318 function than to try to deal with it.
1319
1320 This routine does a final relocation. Whether it is useful for a
1321 relocatable link depends upon how the object format defines
1322 relocations.
1323
1324 FIXME: This routine ignores any special_function in the HOWTO,
1325 since the existing special_function values have been written for
1326 bfd_perform_relocation.
1327
1328 HOWTO is the reloc howto information.
1329 INPUT_BFD is the BFD which the reloc applies to.
1330 INPUT_SECTION is the section which the reloc applies to.
1331 CONTENTS is the contents of the section.
1332 ADDRESS is the address of the reloc within INPUT_SECTION.
1333 VALUE is the value of the symbol the reloc refers to.
1334 ADDEND is the addend of the reloc. */
1335
1336 bfd_reloc_status_type
1337 _bfd_final_link_relocate (reloc_howto_type *howto,
1338 bfd *input_bfd,
1339 asection *input_section,
1340 bfd_byte *contents,
1341 bfd_vma address,
1342 bfd_vma value,
1343 bfd_vma addend)
1344 {
1345 bfd_vma relocation;
1346
1347 /* Sanity check the address. */
1348 if (address > bfd_get_section_limit (input_bfd, input_section))
1349 return bfd_reloc_outofrange;
1350
1351 /* This function assumes that we are dealing with a basic relocation
1352 against a symbol. We want to compute the value of the symbol to
1353 relocate to. This is just VALUE, the value of the symbol, plus
1354 ADDEND, any addend associated with the reloc. */
1355 relocation = value + addend;
1356
1357 /* If the relocation is PC relative, we want to set RELOCATION to
1358 the distance between the symbol (currently in RELOCATION) and the
1359 location we are relocating. Some targets (e.g., i386-aout)
1360 arrange for the contents of the section to be the negative of the
1361 offset of the location within the section; for such targets
1362 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
1363 simply leave the contents of the section as zero; for such
1364 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
1365 need to subtract out the offset of the location within the
1366 section (which is just ADDRESS). */
1367 if (howto->pc_relative)
1368 {
1369 relocation -= (input_section->output_section->vma
1370 + input_section->output_offset);
1371 if (howto->pcrel_offset)
1372 relocation -= address;
1373 }
1374
1375 return _bfd_relocate_contents (howto, input_bfd, relocation,
1376 contents + address);
1377 }
1378
1379 /* Relocate a given location using a given value and howto. */
1380
1381 bfd_reloc_status_type
1382 _bfd_relocate_contents (reloc_howto_type *howto,
1383 bfd *input_bfd,
1384 bfd_vma relocation,
1385 bfd_byte *location)
1386 {
1387 int size;
1388 bfd_vma x = 0;
1389 bfd_reloc_status_type flag;
1390 unsigned int rightshift = howto->rightshift;
1391 unsigned int bitpos = howto->bitpos;
1392
1393 /* If the size is negative, negate RELOCATION. This isn't very
1394 general. */
1395 if (howto->size < 0)
1396 relocation = -relocation;
1397
1398 /* Get the value we are going to relocate. */
1399 size = bfd_get_reloc_size (howto);
1400 switch (size)
1401 {
1402 default:
1403 case 0:
1404 abort ();
1405 case 1:
1406 x = bfd_get_8 (input_bfd, location);
1407 break;
1408 case 2:
1409 x = bfd_get_16 (input_bfd, location);
1410 break;
1411 case 4:
1412 x = bfd_get_32 (input_bfd, location);
1413 break;
1414 case 8:
1415 #ifdef BFD64
1416 x = bfd_get_64 (input_bfd, location);
1417 #else
1418 abort ();
1419 #endif
1420 break;
1421 }
1422
1423 /* Check for overflow. FIXME: We may drop bits during the addition
1424 which we don't check for. We must either check at every single
1425 operation, which would be tedious, or we must do the computations
1426 in a type larger than bfd_vma, which would be inefficient. */
1427 flag = bfd_reloc_ok;
1428 if (howto->complain_on_overflow != complain_overflow_dont)
1429 {
1430 bfd_vma addrmask, fieldmask, signmask, ss;
1431 bfd_vma a, b, sum;
1432
1433 /* Get the values to be added together. For signed and unsigned
1434 relocations, we assume that all values should be truncated to
1435 the size of an address. For bitfields, all the bits matter.
1436 See also bfd_check_overflow. */
1437 fieldmask = N_ONES (howto->bitsize);
1438 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1439 a = relocation;
1440 b = x & howto->src_mask;
1441
1442 switch (howto->complain_on_overflow)
1443 {
1444 case complain_overflow_signed:
1445 a = (a & addrmask) >> rightshift;
1446
1447 /* If any sign bits are set, all sign bits must be set.
1448 That is, A must be a valid negative address after
1449 shifting. */
1450 signmask = ~ (fieldmask >> 1);
1451 ss = a & signmask;
1452 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
1453 flag = bfd_reloc_overflow;
1454
1455 /* We only need this next bit of code if the sign bit of B
1456 is below the sign bit of A. This would only happen if
1457 SRC_MASK had fewer bits than BITSIZE. Note that if
1458 SRC_MASK has more bits than BITSIZE, we can get into
1459 trouble; we would need to verify that B is in range, as
1460 we do for A above. */
1461 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1462
1463 /* Set all the bits above the sign bit. */
1464 b = (b ^ signmask) - signmask;
1465
1466 b = (b & addrmask) >> bitpos;
1467
1468 /* Now we can do the addition. */
1469 sum = a + b;
1470
1471 /* See if the result has the correct sign. Bits above the
1472 sign bit are junk now; ignore them. If the sum is
1473 positive, make sure we did not have all negative inputs;
1474 if the sum is negative, make sure we did not have all
1475 positive inputs. The test below looks only at the sign
1476 bits, and it really just
1477 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1478 */
1479 signmask = (fieldmask >> 1) + 1;
1480 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
1481 flag = bfd_reloc_overflow;
1482
1483 break;
1484
1485 case complain_overflow_unsigned:
1486 /* Checking for an unsigned overflow is relatively easy:
1487 trim the addresses and add, and trim the result as well.
1488 Overflow is normally indicated when the result does not
1489 fit in the field. However, we also need to consider the
1490 case when, e.g., fieldmask is 0x7fffffff or smaller, an
1491 input is 0x80000000, and bfd_vma is only 32 bits; then we
1492 will get sum == 0, but there is an overflow, since the
1493 inputs did not fit in the field. Instead of doing a
1494 separate test, we can check for this by or-ing in the
1495 operands when testing for the sum overflowing its final
1496 field. */
1497 a = (a & addrmask) >> rightshift;
1498 b = (b & addrmask) >> bitpos;
1499 sum = (a + b) & addrmask;
1500 if ((a | b | sum) & ~ fieldmask)
1501 flag = bfd_reloc_overflow;
1502
1503 break;
1504
1505 case complain_overflow_bitfield:
1506 /* Much like the signed check, but for a field one bit
1507 wider, and no trimming inputs with addrmask. We allow a
1508 bitfield to represent numbers in the range -2**n to
1509 2**n-1, where n is the number of bits in the field.
1510 Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1511 overflow, which is exactly what we want. */
1512 a >>= rightshift;
1513
1514 signmask = ~ fieldmask;
1515 ss = a & signmask;
1516 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1517 flag = bfd_reloc_overflow;
1518
1519 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1520 b = (b ^ signmask) - signmask;
1521
1522 b >>= bitpos;
1523
1524 sum = a + b;
1525
1526 /* We mask with addrmask here to explicitly allow an address
1527 wrap-around. The Linux kernel relies on it, and it is
1528 the only way to write assembler code which can run when
1529 loaded at a location 0x80000000 away from the location at
1530 which it is linked. */
1531 signmask = fieldmask + 1;
1532 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
1533 flag = bfd_reloc_overflow;
1534
1535 break;
1536
1537 default:
1538 abort ();
1539 }
1540 }
1541
1542 /* Put RELOCATION in the right bits. */
1543 relocation >>= (bfd_vma) rightshift;
1544 relocation <<= (bfd_vma) bitpos;
1545
1546 /* Add RELOCATION to the right bits of X. */
1547 x = ((x & ~howto->dst_mask)
1548 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1549
1550 /* Put the relocated value back in the object file. */
1551 switch (size)
1552 {
1553 default:
1554 case 0:
1555 abort ();
1556 case 1:
1557 bfd_put_8 (input_bfd, x, location);
1558 break;
1559 case 2:
1560 bfd_put_16 (input_bfd, x, location);
1561 break;
1562 case 4:
1563 bfd_put_32 (input_bfd, x, location);
1564 break;
1565 case 8:
1566 #ifdef BFD64
1567 bfd_put_64 (input_bfd, x, location);
1568 #else
1569 abort ();
1570 #endif
1571 break;
1572 }
1573
1574 return flag;
1575 }
1576
1577 /*
1578 DOCDD
1579 INODE
1580 howto manager, , typedef arelent, Relocations
1581
1582 SECTION
1583 The howto manager
1584
1585 When an application wants to create a relocation, but doesn't
1586 know what the target machine might call it, it can find out by
1587 using this bit of code.
1588
1589 */
1590
1591 /*
1592 TYPEDEF
1593 bfd_reloc_code_type
1594
1595 DESCRIPTION
1596 The insides of a reloc code. The idea is that, eventually, there
1597 will be one enumerator for every type of relocation we ever do.
1598 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1599 return a howto pointer.
1600
1601 This does mean that the application must determine the correct
1602 enumerator value; you can't get a howto pointer from a random set
1603 of attributes.
1604
1605 SENUM
1606 bfd_reloc_code_real
1607
1608 ENUM
1609 BFD_RELOC_64
1610 ENUMX
1611 BFD_RELOC_32
1612 ENUMX
1613 BFD_RELOC_26
1614 ENUMX
1615 BFD_RELOC_24
1616 ENUMX
1617 BFD_RELOC_16
1618 ENUMX
1619 BFD_RELOC_14
1620 ENUMX
1621 BFD_RELOC_8
1622 ENUMDOC
1623 Basic absolute relocations of N bits.
1624
1625 ENUM
1626 BFD_RELOC_64_PCREL
1627 ENUMX
1628 BFD_RELOC_32_PCREL
1629 ENUMX
1630 BFD_RELOC_24_PCREL
1631 ENUMX
1632 BFD_RELOC_16_PCREL
1633 ENUMX
1634 BFD_RELOC_12_PCREL
1635 ENUMX
1636 BFD_RELOC_8_PCREL
1637 ENUMDOC
1638 PC-relative relocations. Sometimes these are relative to the address
1639 of the relocation itself; sometimes they are relative to the start of
1640 the section containing the relocation. It depends on the specific target.
1641
1642 The 24-bit relocation is used in some Intel 960 configurations.
1643
1644 ENUM
1645 BFD_RELOC_32_SECREL
1646 ENUMDOC
1647 Section relative relocations. Some targets need this for DWARF2.
1648
1649 ENUM
1650 BFD_RELOC_32_GOT_PCREL
1651 ENUMX
1652 BFD_RELOC_16_GOT_PCREL
1653 ENUMX
1654 BFD_RELOC_8_GOT_PCREL
1655 ENUMX
1656 BFD_RELOC_32_GOTOFF
1657 ENUMX
1658 BFD_RELOC_16_GOTOFF
1659 ENUMX
1660 BFD_RELOC_LO16_GOTOFF
1661 ENUMX
1662 BFD_RELOC_HI16_GOTOFF
1663 ENUMX
1664 BFD_RELOC_HI16_S_GOTOFF
1665 ENUMX
1666 BFD_RELOC_8_GOTOFF
1667 ENUMX
1668 BFD_RELOC_64_PLT_PCREL
1669 ENUMX
1670 BFD_RELOC_32_PLT_PCREL
1671 ENUMX
1672 BFD_RELOC_24_PLT_PCREL
1673 ENUMX
1674 BFD_RELOC_16_PLT_PCREL
1675 ENUMX
1676 BFD_RELOC_8_PLT_PCREL
1677 ENUMX
1678 BFD_RELOC_64_PLTOFF
1679 ENUMX
1680 BFD_RELOC_32_PLTOFF
1681 ENUMX
1682 BFD_RELOC_16_PLTOFF
1683 ENUMX
1684 BFD_RELOC_LO16_PLTOFF
1685 ENUMX
1686 BFD_RELOC_HI16_PLTOFF
1687 ENUMX
1688 BFD_RELOC_HI16_S_PLTOFF
1689 ENUMX
1690 BFD_RELOC_8_PLTOFF
1691 ENUMDOC
1692 For ELF.
1693
1694 ENUM
1695 BFD_RELOC_68K_GLOB_DAT
1696 ENUMX
1697 BFD_RELOC_68K_JMP_SLOT
1698 ENUMX
1699 BFD_RELOC_68K_RELATIVE
1700 ENUMDOC
1701 Relocations used by 68K ELF.
1702
1703 ENUM
1704 BFD_RELOC_32_BASEREL
1705 ENUMX
1706 BFD_RELOC_16_BASEREL
1707 ENUMX
1708 BFD_RELOC_LO16_BASEREL
1709 ENUMX
1710 BFD_RELOC_HI16_BASEREL
1711 ENUMX
1712 BFD_RELOC_HI16_S_BASEREL
1713 ENUMX
1714 BFD_RELOC_8_BASEREL
1715 ENUMX
1716 BFD_RELOC_RVA
1717 ENUMDOC
1718 Linkage-table relative.
1719
1720 ENUM
1721 BFD_RELOC_8_FFnn
1722 ENUMDOC
1723 Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1724
1725 ENUM
1726 BFD_RELOC_32_PCREL_S2
1727 ENUMX
1728 BFD_RELOC_16_PCREL_S2
1729 ENUMX
1730 BFD_RELOC_23_PCREL_S2
1731 ENUMDOC
1732 These PC-relative relocations are stored as word displacements --
1733 i.e., byte displacements shifted right two bits. The 30-bit word
1734 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1735 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1736 signed 16-bit displacement is used on the MIPS, and the 23-bit
1737 displacement is used on the Alpha.
1738
1739 ENUM
1740 BFD_RELOC_HI22
1741 ENUMX
1742 BFD_RELOC_LO10
1743 ENUMDOC
1744 High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1745 the target word. These are used on the SPARC.
1746
1747 ENUM
1748 BFD_RELOC_GPREL16
1749 ENUMX
1750 BFD_RELOC_GPREL32
1751 ENUMDOC
1752 For systems that allocate a Global Pointer register, these are
1753 displacements off that register. These relocation types are
1754 handled specially, because the value the register will have is
1755 decided relatively late.
1756
1757 ENUM
1758 BFD_RELOC_I960_CALLJ
1759 ENUMDOC
1760 Reloc types used for i960/b.out.
1761
1762 ENUM
1763 BFD_RELOC_NONE
1764 ENUMX
1765 BFD_RELOC_SPARC_WDISP22
1766 ENUMX
1767 BFD_RELOC_SPARC22
1768 ENUMX
1769 BFD_RELOC_SPARC13
1770 ENUMX
1771 BFD_RELOC_SPARC_GOT10
1772 ENUMX
1773 BFD_RELOC_SPARC_GOT13
1774 ENUMX
1775 BFD_RELOC_SPARC_GOT22
1776 ENUMX
1777 BFD_RELOC_SPARC_PC10
1778 ENUMX
1779 BFD_RELOC_SPARC_PC22
1780 ENUMX
1781 BFD_RELOC_SPARC_WPLT30
1782 ENUMX
1783 BFD_RELOC_SPARC_COPY
1784 ENUMX
1785 BFD_RELOC_SPARC_GLOB_DAT
1786 ENUMX
1787 BFD_RELOC_SPARC_JMP_SLOT
1788 ENUMX
1789 BFD_RELOC_SPARC_RELATIVE
1790 ENUMX
1791 BFD_RELOC_SPARC_UA16
1792 ENUMX
1793 BFD_RELOC_SPARC_UA32
1794 ENUMX
1795 BFD_RELOC_SPARC_UA64
1796 ENUMDOC
1797 SPARC ELF relocations. There is probably some overlap with other
1798 relocation types already defined.
1799
1800 ENUM
1801 BFD_RELOC_SPARC_BASE13
1802 ENUMX
1803 BFD_RELOC_SPARC_BASE22
1804 ENUMDOC
1805 I think these are specific to SPARC a.out (e.g., Sun 4).
1806
1807 ENUMEQ
1808 BFD_RELOC_SPARC_64
1809 BFD_RELOC_64
1810 ENUMX
1811 BFD_RELOC_SPARC_10
1812 ENUMX
1813 BFD_RELOC_SPARC_11
1814 ENUMX
1815 BFD_RELOC_SPARC_OLO10
1816 ENUMX
1817 BFD_RELOC_SPARC_HH22
1818 ENUMX
1819 BFD_RELOC_SPARC_HM10
1820 ENUMX
1821 BFD_RELOC_SPARC_LM22
1822 ENUMX
1823 BFD_RELOC_SPARC_PC_HH22
1824 ENUMX
1825 BFD_RELOC_SPARC_PC_HM10
1826 ENUMX
1827 BFD_RELOC_SPARC_PC_LM22
1828 ENUMX
1829 BFD_RELOC_SPARC_WDISP16
1830 ENUMX
1831 BFD_RELOC_SPARC_WDISP19
1832 ENUMX
1833 BFD_RELOC_SPARC_7
1834 ENUMX
1835 BFD_RELOC_SPARC_6
1836 ENUMX
1837 BFD_RELOC_SPARC_5
1838 ENUMEQX
1839 BFD_RELOC_SPARC_DISP64
1840 BFD_RELOC_64_PCREL
1841 ENUMX
1842 BFD_RELOC_SPARC_PLT32
1843 ENUMX
1844 BFD_RELOC_SPARC_PLT64
1845 ENUMX
1846 BFD_RELOC_SPARC_HIX22
1847 ENUMX
1848 BFD_RELOC_SPARC_LOX10
1849 ENUMX
1850 BFD_RELOC_SPARC_H44
1851 ENUMX
1852 BFD_RELOC_SPARC_M44
1853 ENUMX
1854 BFD_RELOC_SPARC_L44
1855 ENUMX
1856 BFD_RELOC_SPARC_REGISTER
1857 ENUMDOC
1858 SPARC64 relocations
1859
1860 ENUM
1861 BFD_RELOC_SPARC_REV32
1862 ENUMDOC
1863 SPARC little endian relocation
1864 ENUM
1865 BFD_RELOC_SPARC_TLS_GD_HI22
1866 ENUMX
1867 BFD_RELOC_SPARC_TLS_GD_LO10
1868 ENUMX
1869 BFD_RELOC_SPARC_TLS_GD_ADD
1870 ENUMX
1871 BFD_RELOC_SPARC_TLS_GD_CALL
1872 ENUMX
1873 BFD_RELOC_SPARC_TLS_LDM_HI22
1874 ENUMX
1875 BFD_RELOC_SPARC_TLS_LDM_LO10
1876 ENUMX
1877 BFD_RELOC_SPARC_TLS_LDM_ADD
1878 ENUMX
1879 BFD_RELOC_SPARC_TLS_LDM_CALL
1880 ENUMX
1881 BFD_RELOC_SPARC_TLS_LDO_HIX22
1882 ENUMX
1883 BFD_RELOC_SPARC_TLS_LDO_LOX10
1884 ENUMX
1885 BFD_RELOC_SPARC_TLS_LDO_ADD
1886 ENUMX
1887 BFD_RELOC_SPARC_TLS_IE_HI22
1888 ENUMX
1889 BFD_RELOC_SPARC_TLS_IE_LO10
1890 ENUMX
1891 BFD_RELOC_SPARC_TLS_IE_LD
1892 ENUMX
1893 BFD_RELOC_SPARC_TLS_IE_LDX
1894 ENUMX
1895 BFD_RELOC_SPARC_TLS_IE_ADD
1896 ENUMX
1897 BFD_RELOC_SPARC_TLS_LE_HIX22
1898 ENUMX
1899 BFD_RELOC_SPARC_TLS_LE_LOX10
1900 ENUMX
1901 BFD_RELOC_SPARC_TLS_DTPMOD32
1902 ENUMX
1903 BFD_RELOC_SPARC_TLS_DTPMOD64
1904 ENUMX
1905 BFD_RELOC_SPARC_TLS_DTPOFF32
1906 ENUMX
1907 BFD_RELOC_SPARC_TLS_DTPOFF64
1908 ENUMX
1909 BFD_RELOC_SPARC_TLS_TPOFF32
1910 ENUMX
1911 BFD_RELOC_SPARC_TLS_TPOFF64
1912 ENUMDOC
1913 SPARC TLS relocations
1914
1915 ENUM
1916 BFD_RELOC_ALPHA_GPDISP_HI16
1917 ENUMDOC
1918 Alpha ECOFF and ELF relocations. Some of these treat the symbol or
1919 "addend" in some special way.
1920 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1921 writing; when reading, it will be the absolute section symbol. The
1922 addend is the displacement in bytes of the "lda" instruction from
1923 the "ldah" instruction (which is at the address of this reloc).
1924 ENUM
1925 BFD_RELOC_ALPHA_GPDISP_LO16
1926 ENUMDOC
1927 For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1928 with GPDISP_HI16 relocs. The addend is ignored when writing the
1929 relocations out, and is filled in with the file's GP value on
1930 reading, for convenience.
1931
1932 ENUM
1933 BFD_RELOC_ALPHA_GPDISP
1934 ENUMDOC
1935 The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1936 relocation except that there is no accompanying GPDISP_LO16
1937 relocation.
1938
1939 ENUM
1940 BFD_RELOC_ALPHA_LITERAL
1941 ENUMX
1942 BFD_RELOC_ALPHA_ELF_LITERAL
1943 ENUMX
1944 BFD_RELOC_ALPHA_LITUSE
1945 ENUMDOC
1946 The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1947 the assembler turns it into a LDQ instruction to load the address of
1948 the symbol, and then fills in a register in the real instruction.
1949
1950 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1951 section symbol. The addend is ignored when writing, but is filled
1952 in with the file's GP value on reading, for convenience, as with the
1953 GPDISP_LO16 reloc.
1954
1955 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1956 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1957 but it generates output not based on the position within the .got
1958 section, but relative to the GP value chosen for the file during the
1959 final link stage.
1960
1961 The LITUSE reloc, on the instruction using the loaded address, gives
1962 information to the linker that it might be able to use to optimize
1963 away some literal section references. The symbol is ignored (read
1964 as the absolute section symbol), and the "addend" indicates the type
1965 of instruction using the register:
1966 1 - "memory" fmt insn
1967 2 - byte-manipulation (byte offset reg)
1968 3 - jsr (target of branch)
1969
1970 ENUM
1971 BFD_RELOC_ALPHA_HINT
1972 ENUMDOC
1973 The HINT relocation indicates a value that should be filled into the
1974 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1975 prediction logic which may be provided on some processors.
1976
1977 ENUM
1978 BFD_RELOC_ALPHA_LINKAGE
1979 ENUMDOC
1980 The LINKAGE relocation outputs a linkage pair in the object file,
1981 which is filled by the linker.
1982
1983 ENUM
1984 BFD_RELOC_ALPHA_CODEADDR
1985 ENUMDOC
1986 The CODEADDR relocation outputs a STO_CA in the object file,
1987 which is filled by the linker.
1988
1989 ENUM
1990 BFD_RELOC_ALPHA_GPREL_HI16
1991 ENUMX
1992 BFD_RELOC_ALPHA_GPREL_LO16
1993 ENUMDOC
1994 The GPREL_HI/LO relocations together form a 32-bit offset from the
1995 GP register.
1996
1997 ENUM
1998 BFD_RELOC_ALPHA_BRSGP
1999 ENUMDOC
2000 Like BFD_RELOC_23_PCREL_S2, except that the source and target must
2001 share a common GP, and the target address is adjusted for
2002 STO_ALPHA_STD_GPLOAD.
2003
2004 ENUM
2005 BFD_RELOC_ALPHA_TLSGD
2006 ENUMX
2007 BFD_RELOC_ALPHA_TLSLDM
2008 ENUMX
2009 BFD_RELOC_ALPHA_DTPMOD64
2010 ENUMX
2011 BFD_RELOC_ALPHA_GOTDTPREL16
2012 ENUMX
2013 BFD_RELOC_ALPHA_DTPREL64
2014 ENUMX
2015 BFD_RELOC_ALPHA_DTPREL_HI16
2016 ENUMX
2017 BFD_RELOC_ALPHA_DTPREL_LO16
2018 ENUMX
2019 BFD_RELOC_ALPHA_DTPREL16
2020 ENUMX
2021 BFD_RELOC_ALPHA_GOTTPREL16
2022 ENUMX
2023 BFD_RELOC_ALPHA_TPREL64
2024 ENUMX
2025 BFD_RELOC_ALPHA_TPREL_HI16
2026 ENUMX
2027 BFD_RELOC_ALPHA_TPREL_LO16
2028 ENUMX
2029 BFD_RELOC_ALPHA_TPREL16
2030 ENUMDOC
2031 Alpha thread-local storage relocations.
2032
2033 ENUM
2034 BFD_RELOC_MIPS_JMP
2035 ENUMDOC
2036 Bits 27..2 of the relocation address shifted right 2 bits;
2037 simple reloc otherwise.
2038
2039 ENUM
2040 BFD_RELOC_MIPS16_JMP
2041 ENUMDOC
2042 The MIPS16 jump instruction.
2043
2044 ENUM
2045 BFD_RELOC_MIPS16_GPREL
2046 ENUMDOC
2047 MIPS16 GP relative reloc.
2048
2049 ENUM
2050 BFD_RELOC_HI16
2051 ENUMDOC
2052 High 16 bits of 32-bit value; simple reloc.
2053 ENUM
2054 BFD_RELOC_HI16_S
2055 ENUMDOC
2056 High 16 bits of 32-bit value but the low 16 bits will be sign
2057 extended and added to form the final result. If the low 16
2058 bits form a negative number, we need to add one to the high value
2059 to compensate for the borrow when the low bits are added.
2060 ENUM
2061 BFD_RELOC_LO16
2062 ENUMDOC
2063 Low 16 bits.
2064
2065 ENUM
2066 BFD_RELOC_MIPS16_HI16
2067 ENUMDOC
2068 MIPS16 high 16 bits of 32-bit value.
2069 ENUM
2070 BFD_RELOC_MIPS16_HI16_S
2071 ENUMDOC
2072 MIPS16 high 16 bits of 32-bit value but the low 16 bits will be sign
2073 extended and added to form the final result. If the low 16
2074 bits form a negative number, we need to add one to the high value
2075 to compensate for the borrow when the low bits are added.
2076 ENUM
2077 BFD_RELOC_MIPS16_LO16
2078 ENUMDOC
2079 MIPS16 low 16 bits.
2080
2081 ENUM
2082 BFD_RELOC_MIPS_LITERAL
2083 ENUMDOC
2084 Relocation against a MIPS literal section.
2085
2086 ENUM
2087 BFD_RELOC_MIPS_GOT16
2088 ENUMX
2089 BFD_RELOC_MIPS_CALL16
2090 ENUMX
2091 BFD_RELOC_MIPS_GOT_HI16
2092 ENUMX
2093 BFD_RELOC_MIPS_GOT_LO16
2094 ENUMX
2095 BFD_RELOC_MIPS_CALL_HI16
2096 ENUMX
2097 BFD_RELOC_MIPS_CALL_LO16
2098 ENUMX
2099 BFD_RELOC_MIPS_SUB
2100 ENUMX
2101 BFD_RELOC_MIPS_GOT_PAGE
2102 ENUMX
2103 BFD_RELOC_MIPS_GOT_OFST
2104 ENUMX
2105 BFD_RELOC_MIPS_GOT_DISP
2106 ENUMX
2107 BFD_RELOC_MIPS_SHIFT5
2108 ENUMX
2109 BFD_RELOC_MIPS_SHIFT6
2110 ENUMX
2111 BFD_RELOC_MIPS_INSERT_A
2112 ENUMX
2113 BFD_RELOC_MIPS_INSERT_B
2114 ENUMX
2115 BFD_RELOC_MIPS_DELETE
2116 ENUMX
2117 BFD_RELOC_MIPS_HIGHEST
2118 ENUMX
2119 BFD_RELOC_MIPS_HIGHER
2120 ENUMX
2121 BFD_RELOC_MIPS_SCN_DISP
2122 ENUMX
2123 BFD_RELOC_MIPS_REL16
2124 ENUMX
2125 BFD_RELOC_MIPS_RELGOT
2126 ENUMX
2127 BFD_RELOC_MIPS_JALR
2128 ENUMX
2129 BFD_RELOC_MIPS_TLS_DTPMOD32
2130 ENUMX
2131 BFD_RELOC_MIPS_TLS_DTPREL32
2132 ENUMX
2133 BFD_RELOC_MIPS_TLS_DTPMOD64
2134 ENUMX
2135 BFD_RELOC_MIPS_TLS_DTPREL64
2136 ENUMX
2137 BFD_RELOC_MIPS_TLS_GD
2138 ENUMX
2139 BFD_RELOC_MIPS_TLS_LDM
2140 ENUMX
2141 BFD_RELOC_MIPS_TLS_DTPREL_HI16
2142 ENUMX
2143 BFD_RELOC_MIPS_TLS_DTPREL_LO16
2144 ENUMX
2145 BFD_RELOC_MIPS_TLS_GOTTPREL
2146 ENUMX
2147 BFD_RELOC_MIPS_TLS_TPREL32
2148 ENUMX
2149 BFD_RELOC_MIPS_TLS_TPREL64
2150 ENUMX
2151 BFD_RELOC_MIPS_TLS_TPREL_HI16
2152 ENUMX
2153 BFD_RELOC_MIPS_TLS_TPREL_LO16
2154 ENUMDOC
2155 MIPS ELF relocations.
2156 COMMENT
2157
2158 ENUM
2159 BFD_RELOC_FRV_LABEL16
2160 ENUMX
2161 BFD_RELOC_FRV_LABEL24
2162 ENUMX
2163 BFD_RELOC_FRV_LO16
2164 ENUMX
2165 BFD_RELOC_FRV_HI16
2166 ENUMX
2167 BFD_RELOC_FRV_GPREL12
2168 ENUMX
2169 BFD_RELOC_FRV_GPRELU12
2170 ENUMX
2171 BFD_RELOC_FRV_GPREL32
2172 ENUMX
2173 BFD_RELOC_FRV_GPRELHI
2174 ENUMX
2175 BFD_RELOC_FRV_GPRELLO
2176 ENUMX
2177 BFD_RELOC_FRV_GOT12
2178 ENUMX
2179 BFD_RELOC_FRV_GOTHI
2180 ENUMX
2181 BFD_RELOC_FRV_GOTLO
2182 ENUMX
2183 BFD_RELOC_FRV_FUNCDESC
2184 ENUMX
2185 BFD_RELOC_FRV_FUNCDESC_GOT12
2186 ENUMX
2187 BFD_RELOC_FRV_FUNCDESC_GOTHI
2188 ENUMX
2189 BFD_RELOC_FRV_FUNCDESC_GOTLO
2190 ENUMX
2191 BFD_RELOC_FRV_FUNCDESC_VALUE
2192 ENUMX
2193 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2194 ENUMX
2195 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2196 ENUMX
2197 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2198 ENUMX
2199 BFD_RELOC_FRV_GOTOFF12
2200 ENUMX
2201 BFD_RELOC_FRV_GOTOFFHI
2202 ENUMX
2203 BFD_RELOC_FRV_GOTOFFLO
2204 ENUMX
2205 BFD_RELOC_FRV_GETTLSOFF
2206 ENUMX
2207 BFD_RELOC_FRV_TLSDESC_VALUE
2208 ENUMX
2209 BFD_RELOC_FRV_GOTTLSDESC12
2210 ENUMX
2211 BFD_RELOC_FRV_GOTTLSDESCHI
2212 ENUMX
2213 BFD_RELOC_FRV_GOTTLSDESCLO
2214 ENUMX
2215 BFD_RELOC_FRV_TLSMOFF12
2216 ENUMX
2217 BFD_RELOC_FRV_TLSMOFFHI
2218 ENUMX
2219 BFD_RELOC_FRV_TLSMOFFLO
2220 ENUMX
2221 BFD_RELOC_FRV_GOTTLSOFF12
2222 ENUMX
2223 BFD_RELOC_FRV_GOTTLSOFFHI
2224 ENUMX
2225 BFD_RELOC_FRV_GOTTLSOFFLO
2226 ENUMX
2227 BFD_RELOC_FRV_TLSOFF
2228 ENUMX
2229 BFD_RELOC_FRV_TLSDESC_RELAX
2230 ENUMX
2231 BFD_RELOC_FRV_GETTLSOFF_RELAX
2232 ENUMX
2233 BFD_RELOC_FRV_TLSOFF_RELAX
2234 ENUMX
2235 BFD_RELOC_FRV_TLSMOFF
2236 ENUMDOC
2237 Fujitsu Frv Relocations.
2238 COMMENT
2239
2240 ENUM
2241 BFD_RELOC_MN10300_GOTOFF24
2242 ENUMDOC
2243 This is a 24bit GOT-relative reloc for the mn10300.
2244 ENUM
2245 BFD_RELOC_MN10300_GOT32
2246 ENUMDOC
2247 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2248 in the instruction.
2249 ENUM
2250 BFD_RELOC_MN10300_GOT24
2251 ENUMDOC
2252 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2253 in the instruction.
2254 ENUM
2255 BFD_RELOC_MN10300_GOT16
2256 ENUMDOC
2257 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2258 in the instruction.
2259 ENUM
2260 BFD_RELOC_MN10300_COPY
2261 ENUMDOC
2262 Copy symbol at runtime.
2263 ENUM
2264 BFD_RELOC_MN10300_GLOB_DAT
2265 ENUMDOC
2266 Create GOT entry.
2267 ENUM
2268 BFD_RELOC_MN10300_JMP_SLOT
2269 ENUMDOC
2270 Create PLT entry.
2271 ENUM
2272 BFD_RELOC_MN10300_RELATIVE
2273 ENUMDOC
2274 Adjust by program base.
2275 COMMENT
2276
2277 ENUM
2278 BFD_RELOC_386_GOT32
2279 ENUMX
2280 BFD_RELOC_386_PLT32
2281 ENUMX
2282 BFD_RELOC_386_COPY
2283 ENUMX
2284 BFD_RELOC_386_GLOB_DAT
2285 ENUMX
2286 BFD_RELOC_386_JUMP_SLOT
2287 ENUMX
2288 BFD_RELOC_386_RELATIVE
2289 ENUMX
2290 BFD_RELOC_386_GOTOFF
2291 ENUMX
2292 BFD_RELOC_386_GOTPC
2293 ENUMX
2294 BFD_RELOC_386_TLS_TPOFF
2295 ENUMX
2296 BFD_RELOC_386_TLS_IE
2297 ENUMX
2298 BFD_RELOC_386_TLS_GOTIE
2299 ENUMX
2300 BFD_RELOC_386_TLS_LE
2301 ENUMX
2302 BFD_RELOC_386_TLS_GD
2303 ENUMX
2304 BFD_RELOC_386_TLS_LDM
2305 ENUMX
2306 BFD_RELOC_386_TLS_LDO_32
2307 ENUMX
2308 BFD_RELOC_386_TLS_IE_32
2309 ENUMX
2310 BFD_RELOC_386_TLS_LE_32
2311 ENUMX
2312 BFD_RELOC_386_TLS_DTPMOD32
2313 ENUMX
2314 BFD_RELOC_386_TLS_DTPOFF32
2315 ENUMX
2316 BFD_RELOC_386_TLS_TPOFF32
2317 ENUMDOC
2318 i386/elf relocations
2319
2320 ENUM
2321 BFD_RELOC_X86_64_GOT32
2322 ENUMX
2323 BFD_RELOC_X86_64_PLT32
2324 ENUMX
2325 BFD_RELOC_X86_64_COPY
2326 ENUMX
2327 BFD_RELOC_X86_64_GLOB_DAT
2328 ENUMX
2329 BFD_RELOC_X86_64_JUMP_SLOT
2330 ENUMX
2331 BFD_RELOC_X86_64_RELATIVE
2332 ENUMX
2333 BFD_RELOC_X86_64_GOTPCREL
2334 ENUMX
2335 BFD_RELOC_X86_64_32S
2336 ENUMX
2337 BFD_RELOC_X86_64_DTPMOD64
2338 ENUMX
2339 BFD_RELOC_X86_64_DTPOFF64
2340 ENUMX
2341 BFD_RELOC_X86_64_TPOFF64
2342 ENUMX
2343 BFD_RELOC_X86_64_TLSGD
2344 ENUMX
2345 BFD_RELOC_X86_64_TLSLD
2346 ENUMX
2347 BFD_RELOC_X86_64_DTPOFF32
2348 ENUMX
2349 BFD_RELOC_X86_64_GOTTPOFF
2350 ENUMX
2351 BFD_RELOC_X86_64_TPOFF32
2352 ENUMDOC
2353 x86-64/elf relocations
2354
2355 ENUM
2356 BFD_RELOC_NS32K_IMM_8
2357 ENUMX
2358 BFD_RELOC_NS32K_IMM_16
2359 ENUMX
2360 BFD_RELOC_NS32K_IMM_32
2361 ENUMX
2362 BFD_RELOC_NS32K_IMM_8_PCREL
2363 ENUMX
2364 BFD_RELOC_NS32K_IMM_16_PCREL
2365 ENUMX
2366 BFD_RELOC_NS32K_IMM_32_PCREL
2367 ENUMX
2368 BFD_RELOC_NS32K_DISP_8
2369 ENUMX
2370 BFD_RELOC_NS32K_DISP_16
2371 ENUMX
2372 BFD_RELOC_NS32K_DISP_32
2373 ENUMX
2374 BFD_RELOC_NS32K_DISP_8_PCREL
2375 ENUMX
2376 BFD_RELOC_NS32K_DISP_16_PCREL
2377 ENUMX
2378 BFD_RELOC_NS32K_DISP_32_PCREL
2379 ENUMDOC
2380 ns32k relocations
2381
2382 ENUM
2383 BFD_RELOC_PDP11_DISP_8_PCREL
2384 ENUMX
2385 BFD_RELOC_PDP11_DISP_6_PCREL
2386 ENUMDOC
2387 PDP11 relocations
2388
2389 ENUM
2390 BFD_RELOC_PJ_CODE_HI16
2391 ENUMX
2392 BFD_RELOC_PJ_CODE_LO16
2393 ENUMX
2394 BFD_RELOC_PJ_CODE_DIR16
2395 ENUMX
2396 BFD_RELOC_PJ_CODE_DIR32
2397 ENUMX
2398 BFD_RELOC_PJ_CODE_REL16
2399 ENUMX
2400 BFD_RELOC_PJ_CODE_REL32
2401 ENUMDOC
2402 Picojava relocs. Not all of these appear in object files.
2403
2404 ENUM
2405 BFD_RELOC_PPC_B26
2406 ENUMX
2407 BFD_RELOC_PPC_BA26
2408 ENUMX
2409 BFD_RELOC_PPC_TOC16
2410 ENUMX
2411 BFD_RELOC_PPC_B16
2412 ENUMX
2413 BFD_RELOC_PPC_B16_BRTAKEN
2414 ENUMX
2415 BFD_RELOC_PPC_B16_BRNTAKEN
2416 ENUMX
2417 BFD_RELOC_PPC_BA16
2418 ENUMX
2419 BFD_RELOC_PPC_BA16_BRTAKEN
2420 ENUMX
2421 BFD_RELOC_PPC_BA16_BRNTAKEN
2422 ENUMX
2423 BFD_RELOC_PPC_COPY
2424 ENUMX
2425 BFD_RELOC_PPC_GLOB_DAT
2426 ENUMX
2427 BFD_RELOC_PPC_JMP_SLOT
2428 ENUMX
2429 BFD_RELOC_PPC_RELATIVE
2430 ENUMX
2431 BFD_RELOC_PPC_LOCAL24PC
2432 ENUMX
2433 BFD_RELOC_PPC_EMB_NADDR32
2434 ENUMX
2435 BFD_RELOC_PPC_EMB_NADDR16
2436 ENUMX
2437 BFD_RELOC_PPC_EMB_NADDR16_LO
2438 ENUMX
2439 BFD_RELOC_PPC_EMB_NADDR16_HI
2440 ENUMX
2441 BFD_RELOC_PPC_EMB_NADDR16_HA
2442 ENUMX
2443 BFD_RELOC_PPC_EMB_SDAI16
2444 ENUMX
2445 BFD_RELOC_PPC_EMB_SDA2I16
2446 ENUMX
2447 BFD_RELOC_PPC_EMB_SDA2REL
2448 ENUMX
2449 BFD_RELOC_PPC_EMB_SDA21
2450 ENUMX
2451 BFD_RELOC_PPC_EMB_MRKREF
2452 ENUMX
2453 BFD_RELOC_PPC_EMB_RELSEC16
2454 ENUMX
2455 BFD_RELOC_PPC_EMB_RELST_LO
2456 ENUMX
2457 BFD_RELOC_PPC_EMB_RELST_HI
2458 ENUMX
2459 BFD_RELOC_PPC_EMB_RELST_HA
2460 ENUMX
2461 BFD_RELOC_PPC_EMB_BIT_FLD
2462 ENUMX
2463 BFD_RELOC_PPC_EMB_RELSDA
2464 ENUMX
2465 BFD_RELOC_PPC64_HIGHER
2466 ENUMX
2467 BFD_RELOC_PPC64_HIGHER_S
2468 ENUMX
2469 BFD_RELOC_PPC64_HIGHEST
2470 ENUMX
2471 BFD_RELOC_PPC64_HIGHEST_S
2472 ENUMX
2473 BFD_RELOC_PPC64_TOC16_LO
2474 ENUMX
2475 BFD_RELOC_PPC64_TOC16_HI
2476 ENUMX
2477 BFD_RELOC_PPC64_TOC16_HA
2478 ENUMX
2479 BFD_RELOC_PPC64_TOC
2480 ENUMX
2481 BFD_RELOC_PPC64_PLTGOT16
2482 ENUMX
2483 BFD_RELOC_PPC64_PLTGOT16_LO
2484 ENUMX
2485 BFD_RELOC_PPC64_PLTGOT16_HI
2486 ENUMX
2487 BFD_RELOC_PPC64_PLTGOT16_HA
2488 ENUMX
2489 BFD_RELOC_PPC64_ADDR16_DS
2490 ENUMX
2491 BFD_RELOC_PPC64_ADDR16_LO_DS
2492 ENUMX
2493 BFD_RELOC_PPC64_GOT16_DS
2494 ENUMX
2495 BFD_RELOC_PPC64_GOT16_LO_DS
2496 ENUMX
2497 BFD_RELOC_PPC64_PLT16_LO_DS
2498 ENUMX
2499 BFD_RELOC_PPC64_SECTOFF_DS
2500 ENUMX
2501 BFD_RELOC_PPC64_SECTOFF_LO_DS
2502 ENUMX
2503 BFD_RELOC_PPC64_TOC16_DS
2504 ENUMX
2505 BFD_RELOC_PPC64_TOC16_LO_DS
2506 ENUMX
2507 BFD_RELOC_PPC64_PLTGOT16_DS
2508 ENUMX
2509 BFD_RELOC_PPC64_PLTGOT16_LO_DS
2510 ENUMDOC
2511 Power(rs6000) and PowerPC relocations.
2512
2513 ENUM
2514 BFD_RELOC_PPC_TLS
2515 ENUMX
2516 BFD_RELOC_PPC_DTPMOD
2517 ENUMX
2518 BFD_RELOC_PPC_TPREL16
2519 ENUMX
2520 BFD_RELOC_PPC_TPREL16_LO
2521 ENUMX
2522 BFD_RELOC_PPC_TPREL16_HI
2523 ENUMX
2524 BFD_RELOC_PPC_TPREL16_HA
2525 ENUMX
2526 BFD_RELOC_PPC_TPREL
2527 ENUMX
2528 BFD_RELOC_PPC_DTPREL16
2529 ENUMX
2530 BFD_RELOC_PPC_DTPREL16_LO
2531 ENUMX
2532 BFD_RELOC_PPC_DTPREL16_HI
2533 ENUMX
2534 BFD_RELOC_PPC_DTPREL16_HA
2535 ENUMX
2536 BFD_RELOC_PPC_DTPREL
2537 ENUMX
2538 BFD_RELOC_PPC_GOT_TLSGD16
2539 ENUMX
2540 BFD_RELOC_PPC_GOT_TLSGD16_LO
2541 ENUMX
2542 BFD_RELOC_PPC_GOT_TLSGD16_HI
2543 ENUMX
2544 BFD_RELOC_PPC_GOT_TLSGD16_HA
2545 ENUMX
2546 BFD_RELOC_PPC_GOT_TLSLD16
2547 ENUMX
2548 BFD_RELOC_PPC_GOT_TLSLD16_LO
2549 ENUMX
2550 BFD_RELOC_PPC_GOT_TLSLD16_HI
2551 ENUMX
2552 BFD_RELOC_PPC_GOT_TLSLD16_HA
2553 ENUMX
2554 BFD_RELOC_PPC_GOT_TPREL16
2555 ENUMX
2556 BFD_RELOC_PPC_GOT_TPREL16_LO
2557 ENUMX
2558 BFD_RELOC_PPC_GOT_TPREL16_HI
2559 ENUMX
2560 BFD_RELOC_PPC_GOT_TPREL16_HA
2561 ENUMX
2562 BFD_RELOC_PPC_GOT_DTPREL16
2563 ENUMX
2564 BFD_RELOC_PPC_GOT_DTPREL16_LO
2565 ENUMX
2566 BFD_RELOC_PPC_GOT_DTPREL16_HI
2567 ENUMX
2568 BFD_RELOC_PPC_GOT_DTPREL16_HA
2569 ENUMX
2570 BFD_RELOC_PPC64_TPREL16_DS
2571 ENUMX
2572 BFD_RELOC_PPC64_TPREL16_LO_DS
2573 ENUMX
2574 BFD_RELOC_PPC64_TPREL16_HIGHER
2575 ENUMX
2576 BFD_RELOC_PPC64_TPREL16_HIGHERA
2577 ENUMX
2578 BFD_RELOC_PPC64_TPREL16_HIGHEST
2579 ENUMX
2580 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2581 ENUMX
2582 BFD_RELOC_PPC64_DTPREL16_DS
2583 ENUMX
2584 BFD_RELOC_PPC64_DTPREL16_LO_DS
2585 ENUMX
2586 BFD_RELOC_PPC64_DTPREL16_HIGHER
2587 ENUMX
2588 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2589 ENUMX
2590 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2591 ENUMX
2592 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2593 ENUMDOC
2594 PowerPC and PowerPC64 thread-local storage relocations.
2595
2596 ENUM
2597 BFD_RELOC_I370_D12
2598 ENUMDOC
2599 IBM 370/390 relocations
2600
2601 ENUM
2602 BFD_RELOC_CTOR
2603 ENUMDOC
2604 The type of reloc used to build a constructor table - at the moment
2605 probably a 32 bit wide absolute relocation, but the target can choose.
2606 It generally does map to one of the other relocation types.
2607
2608 ENUM
2609 BFD_RELOC_ARM_PCREL_BRANCH
2610 ENUMDOC
2611 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2612 not stored in the instruction.
2613 ENUM
2614 BFD_RELOC_ARM_PCREL_BLX
2615 ENUMDOC
2616 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2617 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2618 field in the instruction.
2619 ENUM
2620 BFD_RELOC_THUMB_PCREL_BLX
2621 ENUMDOC
2622 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2623 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2624 field in the instruction.
2625 ENUM
2626 BFD_RELOC_ARM_IMMEDIATE
2627 ENUMX
2628 BFD_RELOC_ARM_ADRL_IMMEDIATE
2629 ENUMX
2630 BFD_RELOC_ARM_OFFSET_IMM
2631 ENUMX
2632 BFD_RELOC_ARM_SHIFT_IMM
2633 ENUMX
2634 BFD_RELOC_ARM_SMI
2635 ENUMX
2636 BFD_RELOC_ARM_SWI
2637 ENUMX
2638 BFD_RELOC_ARM_MULTI
2639 ENUMX
2640 BFD_RELOC_ARM_CP_OFF_IMM
2641 ENUMX
2642 BFD_RELOC_ARM_CP_OFF_IMM_S2
2643 ENUMX
2644 BFD_RELOC_ARM_ADR_IMM
2645 ENUMX
2646 BFD_RELOC_ARM_LDR_IMM
2647 ENUMX
2648 BFD_RELOC_ARM_LITERAL
2649 ENUMX
2650 BFD_RELOC_ARM_IN_POOL
2651 ENUMX
2652 BFD_RELOC_ARM_OFFSET_IMM8
2653 ENUMX
2654 BFD_RELOC_ARM_HWLITERAL
2655 ENUMX
2656 BFD_RELOC_ARM_THUMB_ADD
2657 ENUMX
2658 BFD_RELOC_ARM_THUMB_IMM
2659 ENUMX
2660 BFD_RELOC_ARM_THUMB_SHIFT
2661 ENUMX
2662 BFD_RELOC_ARM_THUMB_OFFSET
2663 ENUMX
2664 BFD_RELOC_ARM_GOT12
2665 ENUMX
2666 BFD_RELOC_ARM_GOT32
2667 ENUMX
2668 BFD_RELOC_ARM_JUMP_SLOT
2669 ENUMX
2670 BFD_RELOC_ARM_COPY
2671 ENUMX
2672 BFD_RELOC_ARM_GLOB_DAT
2673 ENUMX
2674 BFD_RELOC_ARM_PLT32
2675 ENUMX
2676 BFD_RELOC_ARM_RELATIVE
2677 ENUMX
2678 BFD_RELOC_ARM_GOTOFF
2679 ENUMX
2680 BFD_RELOC_ARM_GOTPC
2681 ENUMDOC
2682 These relocs are only used within the ARM assembler. They are not
2683 (at present) written to any object files.
2684 ENUM
2685 BFD_RELOC_ARM_TARGET1
2686 ENUMDOC
2687 Pc-relative or absolute relocation depending on target. Used for
2688 entries in .init_array sections.
2689 ENUM
2690 BFD_RELOC_ARM_ROSEGREL32
2691 ENUMDOC
2692 Read-only segment base relative address.
2693 ENUM
2694 BFD_RELOC_ARM_SBREL32
2695 ENUMDOC
2696 Data segment base relative address.
2697 ENUM
2698 BFD_RELOC_ARM_TARGET2
2699 ENUMDOC
2700 This reloc is used for References to RTTI dta from exception handling
2701 tables. The actual definition depends on the target. It may be a
2702 pc-relative or some form of GOT-indirect relocation.
2703 ENUM
2704 BFD_RELOC_ARM_PREL31
2705 ENUMDOC
2706 31-bit PC relative address.
2707
2708 ENUM
2709 BFD_RELOC_SH_PCDISP8BY2
2710 ENUMX
2711 BFD_RELOC_SH_PCDISP12BY2
2712 ENUMX
2713 BFD_RELOC_SH_IMM3
2714 ENUMX
2715 BFD_RELOC_SH_IMM3U
2716 ENUMX
2717 BFD_RELOC_SH_DISP12
2718 ENUMX
2719 BFD_RELOC_SH_DISP12BY2
2720 ENUMX
2721 BFD_RELOC_SH_DISP12BY4
2722 ENUMX
2723 BFD_RELOC_SH_DISP12BY8
2724 ENUMX
2725 BFD_RELOC_SH_DISP20
2726 ENUMX
2727 BFD_RELOC_SH_DISP20BY8
2728 ENUMX
2729 BFD_RELOC_SH_IMM4
2730 ENUMX
2731 BFD_RELOC_SH_IMM4BY2
2732 ENUMX
2733 BFD_RELOC_SH_IMM4BY4
2734 ENUMX
2735 BFD_RELOC_SH_IMM8
2736 ENUMX
2737 BFD_RELOC_SH_IMM8BY2
2738 ENUMX
2739 BFD_RELOC_SH_IMM8BY4
2740 ENUMX
2741 BFD_RELOC_SH_PCRELIMM8BY2
2742 ENUMX
2743 BFD_RELOC_SH_PCRELIMM8BY4
2744 ENUMX
2745 BFD_RELOC_SH_SWITCH16
2746 ENUMX
2747 BFD_RELOC_SH_SWITCH32
2748 ENUMX
2749 BFD_RELOC_SH_USES
2750 ENUMX
2751 BFD_RELOC_SH_COUNT
2752 ENUMX
2753 BFD_RELOC_SH_ALIGN
2754 ENUMX
2755 BFD_RELOC_SH_CODE
2756 ENUMX
2757 BFD_RELOC_SH_DATA
2758 ENUMX
2759 BFD_RELOC_SH_LABEL
2760 ENUMX
2761 BFD_RELOC_SH_LOOP_START
2762 ENUMX
2763 BFD_RELOC_SH_LOOP_END
2764 ENUMX
2765 BFD_RELOC_SH_COPY
2766 ENUMX
2767 BFD_RELOC_SH_GLOB_DAT
2768 ENUMX
2769 BFD_RELOC_SH_JMP_SLOT
2770 ENUMX
2771 BFD_RELOC_SH_RELATIVE
2772 ENUMX
2773 BFD_RELOC_SH_GOTPC
2774 ENUMX
2775 BFD_RELOC_SH_GOT_LOW16
2776 ENUMX
2777 BFD_RELOC_SH_GOT_MEDLOW16
2778 ENUMX
2779 BFD_RELOC_SH_GOT_MEDHI16
2780 ENUMX
2781 BFD_RELOC_SH_GOT_HI16
2782 ENUMX
2783 BFD_RELOC_SH_GOTPLT_LOW16
2784 ENUMX
2785 BFD_RELOC_SH_GOTPLT_MEDLOW16
2786 ENUMX
2787 BFD_RELOC_SH_GOTPLT_MEDHI16
2788 ENUMX
2789 BFD_RELOC_SH_GOTPLT_HI16
2790 ENUMX
2791 BFD_RELOC_SH_PLT_LOW16
2792 ENUMX
2793 BFD_RELOC_SH_PLT_MEDLOW16
2794 ENUMX
2795 BFD_RELOC_SH_PLT_MEDHI16
2796 ENUMX
2797 BFD_RELOC_SH_PLT_HI16
2798 ENUMX
2799 BFD_RELOC_SH_GOTOFF_LOW16
2800 ENUMX
2801 BFD_RELOC_SH_GOTOFF_MEDLOW16
2802 ENUMX
2803 BFD_RELOC_SH_GOTOFF_MEDHI16
2804 ENUMX
2805 BFD_RELOC_SH_GOTOFF_HI16
2806 ENUMX
2807 BFD_RELOC_SH_GOTPC_LOW16
2808 ENUMX
2809 BFD_RELOC_SH_GOTPC_MEDLOW16
2810 ENUMX
2811 BFD_RELOC_SH_GOTPC_MEDHI16
2812 ENUMX
2813 BFD_RELOC_SH_GOTPC_HI16
2814 ENUMX
2815 BFD_RELOC_SH_COPY64
2816 ENUMX
2817 BFD_RELOC_SH_GLOB_DAT64
2818 ENUMX
2819 BFD_RELOC_SH_JMP_SLOT64
2820 ENUMX
2821 BFD_RELOC_SH_RELATIVE64
2822 ENUMX
2823 BFD_RELOC_SH_GOT10BY4
2824 ENUMX
2825 BFD_RELOC_SH_GOT10BY8
2826 ENUMX
2827 BFD_RELOC_SH_GOTPLT10BY4
2828 ENUMX
2829 BFD_RELOC_SH_GOTPLT10BY8
2830 ENUMX
2831 BFD_RELOC_SH_GOTPLT32
2832 ENUMX
2833 BFD_RELOC_SH_SHMEDIA_CODE
2834 ENUMX
2835 BFD_RELOC_SH_IMMU5
2836 ENUMX
2837 BFD_RELOC_SH_IMMS6
2838 ENUMX
2839 BFD_RELOC_SH_IMMS6BY32
2840 ENUMX
2841 BFD_RELOC_SH_IMMU6
2842 ENUMX
2843 BFD_RELOC_SH_IMMS10
2844 ENUMX
2845 BFD_RELOC_SH_IMMS10BY2
2846 ENUMX
2847 BFD_RELOC_SH_IMMS10BY4
2848 ENUMX
2849 BFD_RELOC_SH_IMMS10BY8
2850 ENUMX
2851 BFD_RELOC_SH_IMMS16
2852 ENUMX
2853 BFD_RELOC_SH_IMMU16
2854 ENUMX
2855 BFD_RELOC_SH_IMM_LOW16
2856 ENUMX
2857 BFD_RELOC_SH_IMM_LOW16_PCREL
2858 ENUMX
2859 BFD_RELOC_SH_IMM_MEDLOW16
2860 ENUMX
2861 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2862 ENUMX
2863 BFD_RELOC_SH_IMM_MEDHI16
2864 ENUMX
2865 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2866 ENUMX
2867 BFD_RELOC_SH_IMM_HI16
2868 ENUMX
2869 BFD_RELOC_SH_IMM_HI16_PCREL
2870 ENUMX
2871 BFD_RELOC_SH_PT_16
2872 ENUMX
2873 BFD_RELOC_SH_TLS_GD_32
2874 ENUMX
2875 BFD_RELOC_SH_TLS_LD_32
2876 ENUMX
2877 BFD_RELOC_SH_TLS_LDO_32
2878 ENUMX
2879 BFD_RELOC_SH_TLS_IE_32
2880 ENUMX
2881 BFD_RELOC_SH_TLS_LE_32
2882 ENUMX
2883 BFD_RELOC_SH_TLS_DTPMOD32
2884 ENUMX
2885 BFD_RELOC_SH_TLS_DTPOFF32
2886 ENUMX
2887 BFD_RELOC_SH_TLS_TPOFF32
2888 ENUMDOC
2889 Renesas / SuperH SH relocs. Not all of these appear in object files.
2890
2891 ENUM
2892 BFD_RELOC_THUMB_PCREL_BRANCH9
2893 ENUMX
2894 BFD_RELOC_THUMB_PCREL_BRANCH12
2895 ENUMX
2896 BFD_RELOC_THUMB_PCREL_BRANCH23
2897 ENUMDOC
2898 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2899 be zero and is not stored in the instruction.
2900
2901 ENUM
2902 BFD_RELOC_ARC_B22_PCREL
2903 ENUMDOC
2904 ARC Cores relocs.
2905 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2906 not stored in the instruction. The high 20 bits are installed in bits 26
2907 through 7 of the instruction.
2908 ENUM
2909 BFD_RELOC_ARC_B26
2910 ENUMDOC
2911 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2912 stored in the instruction. The high 24 bits are installed in bits 23
2913 through 0.
2914
2915 ENUM
2916 BFD_RELOC_D10V_10_PCREL_R
2917 ENUMDOC
2918 Mitsubishi D10V relocs.
2919 This is a 10-bit reloc with the right 2 bits
2920 assumed to be 0.
2921 ENUM
2922 BFD_RELOC_D10V_10_PCREL_L
2923 ENUMDOC
2924 Mitsubishi D10V relocs.
2925 This is a 10-bit reloc with the right 2 bits
2926 assumed to be 0. This is the same as the previous reloc
2927 except it is in the left container, i.e.,
2928 shifted left 15 bits.
2929 ENUM
2930 BFD_RELOC_D10V_18
2931 ENUMDOC
2932 This is an 18-bit reloc with the right 2 bits
2933 assumed to be 0.
2934 ENUM
2935 BFD_RELOC_D10V_18_PCREL
2936 ENUMDOC
2937 This is an 18-bit reloc with the right 2 bits
2938 assumed to be 0.
2939
2940 ENUM
2941 BFD_RELOC_D30V_6
2942 ENUMDOC
2943 Mitsubishi D30V relocs.
2944 This is a 6-bit absolute reloc.
2945 ENUM
2946 BFD_RELOC_D30V_9_PCREL
2947 ENUMDOC
2948 This is a 6-bit pc-relative reloc with
2949 the right 3 bits assumed to be 0.
2950 ENUM
2951 BFD_RELOC_D30V_9_PCREL_R
2952 ENUMDOC
2953 This is a 6-bit pc-relative reloc with
2954 the right 3 bits assumed to be 0. Same
2955 as the previous reloc but on the right side
2956 of the container.
2957 ENUM
2958 BFD_RELOC_D30V_15
2959 ENUMDOC
2960 This is a 12-bit absolute reloc with the
2961 right 3 bitsassumed to be 0.
2962 ENUM
2963 BFD_RELOC_D30V_15_PCREL
2964 ENUMDOC
2965 This is a 12-bit pc-relative reloc with
2966 the right 3 bits assumed to be 0.
2967 ENUM
2968 BFD_RELOC_D30V_15_PCREL_R
2969 ENUMDOC
2970 This is a 12-bit pc-relative reloc with
2971 the right 3 bits assumed to be 0. Same
2972 as the previous reloc but on the right side
2973 of the container.
2974 ENUM
2975 BFD_RELOC_D30V_21
2976 ENUMDOC
2977 This is an 18-bit absolute reloc with
2978 the right 3 bits assumed to be 0.
2979 ENUM
2980 BFD_RELOC_D30V_21_PCREL
2981 ENUMDOC
2982 This is an 18-bit pc-relative reloc with
2983 the right 3 bits assumed to be 0.
2984 ENUM
2985 BFD_RELOC_D30V_21_PCREL_R
2986 ENUMDOC
2987 This is an 18-bit pc-relative reloc with
2988 the right 3 bits assumed to be 0. Same
2989 as the previous reloc but on the right side
2990 of the container.
2991 ENUM
2992 BFD_RELOC_D30V_32
2993 ENUMDOC
2994 This is a 32-bit absolute reloc.
2995 ENUM
2996 BFD_RELOC_D30V_32_PCREL
2997 ENUMDOC
2998 This is a 32-bit pc-relative reloc.
2999
3000 ENUM
3001 BFD_RELOC_DLX_HI16_S
3002 ENUMDOC
3003 DLX relocs
3004 ENUM
3005 BFD_RELOC_DLX_LO16
3006 ENUMDOC
3007 DLX relocs
3008 ENUM
3009 BFD_RELOC_DLX_JMP26
3010 ENUMDOC
3011 DLX relocs
3012
3013 ENUM
3014 BFD_RELOC_M32R_24
3015 ENUMDOC
3016 Renesas M32R (formerly Mitsubishi M32R) relocs.
3017 This is a 24 bit absolute address.
3018 ENUM
3019 BFD_RELOC_M32R_10_PCREL
3020 ENUMDOC
3021 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
3022 ENUM
3023 BFD_RELOC_M32R_18_PCREL
3024 ENUMDOC
3025 This is an 18-bit reloc with the right 2 bits assumed to be 0.
3026 ENUM
3027 BFD_RELOC_M32R_26_PCREL
3028 ENUMDOC
3029 This is a 26-bit reloc with the right 2 bits assumed to be 0.
3030 ENUM
3031 BFD_RELOC_M32R_HI16_ULO
3032 ENUMDOC
3033 This is a 16-bit reloc containing the high 16 bits of an address
3034 used when the lower 16 bits are treated as unsigned.
3035 ENUM
3036 BFD_RELOC_M32R_HI16_SLO
3037 ENUMDOC
3038 This is a 16-bit reloc containing the high 16 bits of an address
3039 used when the lower 16 bits are treated as signed.
3040 ENUM
3041 BFD_RELOC_M32R_LO16
3042 ENUMDOC
3043 This is a 16-bit reloc containing the lower 16 bits of an address.
3044 ENUM
3045 BFD_RELOC_M32R_SDA16
3046 ENUMDOC
3047 This is a 16-bit reloc containing the small data area offset for use in
3048 add3, load, and store instructions.
3049 ENUM
3050 BFD_RELOC_M32R_GOT24
3051 ENUMX
3052 BFD_RELOC_M32R_26_PLTREL
3053 ENUMX
3054 BFD_RELOC_M32R_COPY
3055 ENUMX
3056 BFD_RELOC_M32R_GLOB_DAT
3057 ENUMX
3058 BFD_RELOC_M32R_JMP_SLOT
3059 ENUMX
3060 BFD_RELOC_M32R_RELATIVE
3061 ENUMX
3062 BFD_RELOC_M32R_GOTOFF
3063 ENUMX
3064 BFD_RELOC_M32R_GOTOFF_HI_ULO
3065 ENUMX
3066 BFD_RELOC_M32R_GOTOFF_HI_SLO
3067 ENUMX
3068 BFD_RELOC_M32R_GOTOFF_LO
3069 ENUMX
3070 BFD_RELOC_M32R_GOTPC24
3071 ENUMX
3072 BFD_RELOC_M32R_GOT16_HI_ULO
3073 ENUMX
3074 BFD_RELOC_M32R_GOT16_HI_SLO
3075 ENUMX
3076 BFD_RELOC_M32R_GOT16_LO
3077 ENUMX
3078 BFD_RELOC_M32R_GOTPC_HI_ULO
3079 ENUMX
3080 BFD_RELOC_M32R_GOTPC_HI_SLO
3081 ENUMX
3082 BFD_RELOC_M32R_GOTPC_LO
3083 ENUMDOC
3084 For PIC.
3085
3086
3087 ENUM
3088 BFD_RELOC_V850_9_PCREL
3089 ENUMDOC
3090 This is a 9-bit reloc
3091 ENUM
3092 BFD_RELOC_V850_22_PCREL
3093 ENUMDOC
3094 This is a 22-bit reloc
3095
3096 ENUM
3097 BFD_RELOC_V850_SDA_16_16_OFFSET
3098 ENUMDOC
3099 This is a 16 bit offset from the short data area pointer.
3100 ENUM
3101 BFD_RELOC_V850_SDA_15_16_OFFSET
3102 ENUMDOC
3103 This is a 16 bit offset (of which only 15 bits are used) from the
3104 short data area pointer.
3105 ENUM
3106 BFD_RELOC_V850_ZDA_16_16_OFFSET
3107 ENUMDOC
3108 This is a 16 bit offset from the zero data area pointer.
3109 ENUM
3110 BFD_RELOC_V850_ZDA_15_16_OFFSET
3111 ENUMDOC
3112 This is a 16 bit offset (of which only 15 bits are used) from the
3113 zero data area pointer.
3114 ENUM
3115 BFD_RELOC_V850_TDA_6_8_OFFSET
3116 ENUMDOC
3117 This is an 8 bit offset (of which only 6 bits are used) from the
3118 tiny data area pointer.
3119 ENUM
3120 BFD_RELOC_V850_TDA_7_8_OFFSET
3121 ENUMDOC
3122 This is an 8bit offset (of which only 7 bits are used) from the tiny
3123 data area pointer.
3124 ENUM
3125 BFD_RELOC_V850_TDA_7_7_OFFSET
3126 ENUMDOC
3127 This is a 7 bit offset from the tiny data area pointer.
3128 ENUM
3129 BFD_RELOC_V850_TDA_16_16_OFFSET
3130 ENUMDOC
3131 This is a 16 bit offset from the tiny data area pointer.
3132 COMMENT
3133 ENUM
3134 BFD_RELOC_V850_TDA_4_5_OFFSET
3135 ENUMDOC
3136 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3137 data area pointer.
3138 ENUM
3139 BFD_RELOC_V850_TDA_4_4_OFFSET
3140 ENUMDOC
3141 This is a 4 bit offset from the tiny data area pointer.
3142 ENUM
3143 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3144 ENUMDOC
3145 This is a 16 bit offset from the short data area pointer, with the
3146 bits placed non-contiguously in the instruction.
3147 ENUM
3148 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3149 ENUMDOC
3150 This is a 16 bit offset from the zero data area pointer, with the
3151 bits placed non-contiguously in the instruction.
3152 ENUM
3153 BFD_RELOC_V850_CALLT_6_7_OFFSET
3154 ENUMDOC
3155 This is a 6 bit offset from the call table base pointer.
3156 ENUM
3157 BFD_RELOC_V850_CALLT_16_16_OFFSET
3158 ENUMDOC
3159 This is a 16 bit offset from the call table base pointer.
3160 ENUM
3161 BFD_RELOC_V850_LONGCALL
3162 ENUMDOC
3163 Used for relaxing indirect function calls.
3164 ENUM
3165 BFD_RELOC_V850_LONGJUMP
3166 ENUMDOC
3167 Used for relaxing indirect jumps.
3168 ENUM
3169 BFD_RELOC_V850_ALIGN
3170 ENUMDOC
3171 Used to maintain alignment whilst relaxing.
3172 ENUM
3173 BFD_RELOC_V850_LO16_SPLIT_OFFSET
3174 ENUMDOC
3175 This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3176 instructions.
3177 ENUM
3178 BFD_RELOC_MN10300_32_PCREL
3179 ENUMDOC
3180 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3181 instruction.
3182 ENUM
3183 BFD_RELOC_MN10300_16_PCREL
3184 ENUMDOC
3185 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3186 instruction.
3187
3188 ENUM
3189 BFD_RELOC_TIC30_LDP
3190 ENUMDOC
3191 This is a 8bit DP reloc for the tms320c30, where the most
3192 significant 8 bits of a 24 bit word are placed into the least
3193 significant 8 bits of the opcode.
3194
3195 ENUM
3196 BFD_RELOC_TIC54X_PARTLS7
3197 ENUMDOC
3198 This is a 7bit reloc for the tms320c54x, where the least
3199 significant 7 bits of a 16 bit word are placed into the least
3200 significant 7 bits of the opcode.
3201
3202 ENUM
3203 BFD_RELOC_TIC54X_PARTMS9
3204 ENUMDOC
3205 This is a 9bit DP reloc for the tms320c54x, where the most
3206 significant 9 bits of a 16 bit word are placed into the least
3207 significant 9 bits of the opcode.
3208
3209 ENUM
3210 BFD_RELOC_TIC54X_23
3211 ENUMDOC
3212 This is an extended address 23-bit reloc for the tms320c54x.
3213
3214 ENUM
3215 BFD_RELOC_TIC54X_16_OF_23
3216 ENUMDOC
3217 This is a 16-bit reloc for the tms320c54x, where the least
3218 significant 16 bits of a 23-bit extended address are placed into
3219 the opcode.
3220
3221 ENUM
3222 BFD_RELOC_TIC54X_MS7_OF_23
3223 ENUMDOC
3224 This is a reloc for the tms320c54x, where the most
3225 significant 7 bits of a 23-bit extended address are placed into
3226 the opcode.
3227
3228 ENUM
3229 BFD_RELOC_FR30_48
3230 ENUMDOC
3231 This is a 48 bit reloc for the FR30 that stores 32 bits.
3232 ENUM
3233 BFD_RELOC_FR30_20
3234 ENUMDOC
3235 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3236 two sections.
3237 ENUM
3238 BFD_RELOC_FR30_6_IN_4
3239 ENUMDOC
3240 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3241 4 bits.
3242 ENUM
3243 BFD_RELOC_FR30_8_IN_8
3244 ENUMDOC
3245 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3246 into 8 bits.
3247 ENUM
3248 BFD_RELOC_FR30_9_IN_8
3249 ENUMDOC
3250 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3251 into 8 bits.
3252 ENUM
3253 BFD_RELOC_FR30_10_IN_8
3254 ENUMDOC
3255 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3256 into 8 bits.
3257 ENUM
3258 BFD_RELOC_FR30_9_PCREL
3259 ENUMDOC
3260 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3261 short offset into 8 bits.
3262 ENUM
3263 BFD_RELOC_FR30_12_PCREL
3264 ENUMDOC
3265 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3266 short offset into 11 bits.
3267
3268 ENUM
3269 BFD_RELOC_MCORE_PCREL_IMM8BY4
3270 ENUMX
3271 BFD_RELOC_MCORE_PCREL_IMM11BY2
3272 ENUMX
3273 BFD_RELOC_MCORE_PCREL_IMM4BY2
3274 ENUMX
3275 BFD_RELOC_MCORE_PCREL_32
3276 ENUMX
3277 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3278 ENUMX
3279 BFD_RELOC_MCORE_RVA
3280 ENUMDOC
3281 Motorola Mcore relocations.
3282
3283 ENUM
3284 BFD_RELOC_MMIX_GETA
3285 ENUMX
3286 BFD_RELOC_MMIX_GETA_1
3287 ENUMX
3288 BFD_RELOC_MMIX_GETA_2
3289 ENUMX
3290 BFD_RELOC_MMIX_GETA_3
3291 ENUMDOC
3292 These are relocations for the GETA instruction.
3293 ENUM
3294 BFD_RELOC_MMIX_CBRANCH
3295 ENUMX
3296 BFD_RELOC_MMIX_CBRANCH_J
3297 ENUMX
3298 BFD_RELOC_MMIX_CBRANCH_1
3299 ENUMX
3300 BFD_RELOC_MMIX_CBRANCH_2
3301 ENUMX
3302 BFD_RELOC_MMIX_CBRANCH_3
3303 ENUMDOC
3304 These are relocations for a conditional branch instruction.
3305 ENUM
3306 BFD_RELOC_MMIX_PUSHJ
3307 ENUMX
3308 BFD_RELOC_MMIX_PUSHJ_1
3309 ENUMX
3310 BFD_RELOC_MMIX_PUSHJ_2
3311 ENUMX
3312 BFD_RELOC_MMIX_PUSHJ_3
3313 ENUMX
3314 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3315 ENUMDOC
3316 These are relocations for the PUSHJ instruction.
3317 ENUM
3318 BFD_RELOC_MMIX_JMP
3319 ENUMX
3320 BFD_RELOC_MMIX_JMP_1
3321 ENUMX
3322 BFD_RELOC_MMIX_JMP_2
3323 ENUMX
3324 BFD_RELOC_MMIX_JMP_3
3325 ENUMDOC
3326 These are relocations for the JMP instruction.
3327 ENUM
3328 BFD_RELOC_MMIX_ADDR19
3329 ENUMDOC
3330 This is a relocation for a relative address as in a GETA instruction or
3331 a branch.
3332 ENUM
3333 BFD_RELOC_MMIX_ADDR27
3334 ENUMDOC
3335 This is a relocation for a relative address as in a JMP instruction.
3336 ENUM
3337 BFD_RELOC_MMIX_REG_OR_BYTE
3338 ENUMDOC
3339 This is a relocation for an instruction field that may be a general
3340 register or a value 0..255.
3341 ENUM
3342 BFD_RELOC_MMIX_REG
3343 ENUMDOC
3344 This is a relocation for an instruction field that may be a general
3345 register.
3346 ENUM
3347 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3348 ENUMDOC
3349 This is a relocation for two instruction fields holding a register and
3350 an offset, the equivalent of the relocation.
3351 ENUM
3352 BFD_RELOC_MMIX_LOCAL
3353 ENUMDOC
3354 This relocation is an assertion that the expression is not allocated as
3355 a global register. It does not modify contents.
3356
3357 ENUM
3358 BFD_RELOC_AVR_7_PCREL
3359 ENUMDOC
3360 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3361 short offset into 7 bits.
3362 ENUM
3363 BFD_RELOC_AVR_13_PCREL
3364 ENUMDOC
3365 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3366 short offset into 12 bits.
3367 ENUM
3368 BFD_RELOC_AVR_16_PM
3369 ENUMDOC
3370 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3371 program memory address) into 16 bits.
3372 ENUM
3373 BFD_RELOC_AVR_LO8_LDI
3374 ENUMDOC
3375 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3376 data memory address) into 8 bit immediate value of LDI insn.
3377 ENUM
3378 BFD_RELOC_AVR_HI8_LDI
3379 ENUMDOC
3380 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3381 of data memory address) into 8 bit immediate value of LDI insn.
3382 ENUM
3383 BFD_RELOC_AVR_HH8_LDI
3384 ENUMDOC
3385 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3386 of program memory address) into 8 bit immediate value of LDI insn.
3387 ENUM
3388 BFD_RELOC_AVR_LO8_LDI_NEG
3389 ENUMDOC
3390 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3391 (usually data memory address) into 8 bit immediate value of SUBI insn.
3392 ENUM
3393 BFD_RELOC_AVR_HI8_LDI_NEG
3394 ENUMDOC
3395 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3396 (high 8 bit of data memory address) into 8 bit immediate value of
3397 SUBI insn.
3398 ENUM
3399 BFD_RELOC_AVR_HH8_LDI_NEG
3400 ENUMDOC
3401 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3402 (most high 8 bit of program memory address) into 8 bit immediate value
3403 of LDI or SUBI insn.
3404 ENUM
3405 BFD_RELOC_AVR_LO8_LDI_PM
3406 ENUMDOC
3407 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3408 command address) into 8 bit immediate value of LDI insn.
3409 ENUM
3410 BFD_RELOC_AVR_HI8_LDI_PM
3411 ENUMDOC
3412 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3413 of command address) into 8 bit immediate value of LDI insn.
3414 ENUM
3415 BFD_RELOC_AVR_HH8_LDI_PM
3416 ENUMDOC
3417 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3418 of command address) into 8 bit immediate value of LDI insn.
3419 ENUM
3420 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3421 ENUMDOC
3422 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3423 (usually command address) into 8 bit immediate value of SUBI insn.
3424 ENUM
3425 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3426 ENUMDOC
3427 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3428 (high 8 bit of 16 bit command address) into 8 bit immediate value
3429 of SUBI insn.
3430 ENUM
3431 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3432 ENUMDOC
3433 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3434 (high 6 bit of 22 bit command address) into 8 bit immediate
3435 value of SUBI insn.
3436 ENUM
3437 BFD_RELOC_AVR_CALL
3438 ENUMDOC
3439 This is a 32 bit reloc for the AVR that stores 23 bit value
3440 into 22 bits.
3441 ENUM
3442 BFD_RELOC_AVR_LDI
3443 ENUMDOC
3444 This is a 16 bit reloc for the AVR that stores all needed bits
3445 for absolute addressing with ldi with overflow check to linktime
3446 ENUM
3447 BFD_RELOC_AVR_6
3448 ENUMDOC
3449 This is a 6 bit reloc for the AVR that stores offset for ldd/std
3450 instructions
3451 ENUM
3452 BFD_RELOC_AVR_6_ADIW
3453 ENUMDOC
3454 This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3455 instructions
3456
3457 ENUM
3458 BFD_RELOC_390_12
3459 ENUMDOC
3460 Direct 12 bit.
3461 ENUM
3462 BFD_RELOC_390_GOT12
3463 ENUMDOC
3464 12 bit GOT offset.
3465 ENUM
3466 BFD_RELOC_390_PLT32
3467 ENUMDOC
3468 32 bit PC relative PLT address.
3469 ENUM
3470 BFD_RELOC_390_COPY
3471 ENUMDOC
3472 Copy symbol at runtime.
3473 ENUM
3474 BFD_RELOC_390_GLOB_DAT
3475 ENUMDOC
3476 Create GOT entry.
3477 ENUM
3478 BFD_RELOC_390_JMP_SLOT
3479 ENUMDOC
3480 Create PLT entry.
3481 ENUM
3482 BFD_RELOC_390_RELATIVE
3483 ENUMDOC
3484 Adjust by program base.
3485 ENUM
3486 BFD_RELOC_390_GOTPC
3487 ENUMDOC
3488 32 bit PC relative offset to GOT.
3489 ENUM
3490 BFD_RELOC_390_GOT16
3491 ENUMDOC
3492 16 bit GOT offset.
3493 ENUM
3494 BFD_RELOC_390_PC16DBL
3495 ENUMDOC
3496 PC relative 16 bit shifted by 1.
3497 ENUM
3498 BFD_RELOC_390_PLT16DBL
3499 ENUMDOC
3500 16 bit PC rel. PLT shifted by 1.
3501 ENUM
3502 BFD_RELOC_390_PC32DBL
3503 ENUMDOC
3504 PC relative 32 bit shifted by 1.
3505 ENUM
3506 BFD_RELOC_390_PLT32DBL
3507 ENUMDOC
3508 32 bit PC rel. PLT shifted by 1.
3509 ENUM
3510 BFD_RELOC_390_GOTPCDBL
3511 ENUMDOC
3512 32 bit PC rel. GOT shifted by 1.
3513 ENUM
3514 BFD_RELOC_390_GOT64
3515 ENUMDOC
3516 64 bit GOT offset.
3517 ENUM
3518 BFD_RELOC_390_PLT64
3519 ENUMDOC
3520 64 bit PC relative PLT address.
3521 ENUM
3522 BFD_RELOC_390_GOTENT
3523 ENUMDOC
3524 32 bit rel. offset to GOT entry.
3525 ENUM
3526 BFD_RELOC_390_GOTOFF64
3527 ENUMDOC
3528 64 bit offset to GOT.
3529 ENUM
3530 BFD_RELOC_390_GOTPLT12
3531 ENUMDOC
3532 12-bit offset to symbol-entry within GOT, with PLT handling.
3533 ENUM
3534 BFD_RELOC_390_GOTPLT16
3535 ENUMDOC
3536 16-bit offset to symbol-entry within GOT, with PLT handling.
3537 ENUM
3538 BFD_RELOC_390_GOTPLT32
3539 ENUMDOC
3540 32-bit offset to symbol-entry within GOT, with PLT handling.
3541 ENUM
3542 BFD_RELOC_390_GOTPLT64
3543 ENUMDOC
3544 64-bit offset to symbol-entry within GOT, with PLT handling.
3545 ENUM
3546 BFD_RELOC_390_GOTPLTENT
3547 ENUMDOC
3548 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3549 ENUM
3550 BFD_RELOC_390_PLTOFF16
3551 ENUMDOC
3552 16-bit rel. offset from the GOT to a PLT entry.
3553 ENUM
3554 BFD_RELOC_390_PLTOFF32
3555 ENUMDOC
3556 32-bit rel. offset from the GOT to a PLT entry.
3557 ENUM
3558 BFD_RELOC_390_PLTOFF64
3559 ENUMDOC
3560 64-bit rel. offset from the GOT to a PLT entry.
3561
3562 ENUM
3563 BFD_RELOC_390_TLS_LOAD
3564 ENUMX
3565 BFD_RELOC_390_TLS_GDCALL
3566 ENUMX
3567 BFD_RELOC_390_TLS_LDCALL
3568 ENUMX
3569 BFD_RELOC_390_TLS_GD32
3570 ENUMX
3571 BFD_RELOC_390_TLS_GD64
3572 ENUMX
3573 BFD_RELOC_390_TLS_GOTIE12
3574 ENUMX
3575 BFD_RELOC_390_TLS_GOTIE32
3576 ENUMX
3577 BFD_RELOC_390_TLS_GOTIE64
3578 ENUMX
3579 BFD_RELOC_390_TLS_LDM32
3580 ENUMX
3581 BFD_RELOC_390_TLS_LDM64
3582 ENUMX
3583 BFD_RELOC_390_TLS_IE32
3584 ENUMX
3585 BFD_RELOC_390_TLS_IE64
3586 ENUMX
3587 BFD_RELOC_390_TLS_IEENT
3588 ENUMX
3589 BFD_RELOC_390_TLS_LE32
3590 ENUMX
3591 BFD_RELOC_390_TLS_LE64
3592 ENUMX
3593 BFD_RELOC_390_TLS_LDO32
3594 ENUMX
3595 BFD_RELOC_390_TLS_LDO64
3596 ENUMX
3597 BFD_RELOC_390_TLS_DTPMOD
3598 ENUMX
3599 BFD_RELOC_390_TLS_DTPOFF
3600 ENUMX
3601 BFD_RELOC_390_TLS_TPOFF
3602 ENUMDOC
3603 s390 tls relocations.
3604
3605 ENUM
3606 BFD_RELOC_390_20
3607 ENUMX
3608 BFD_RELOC_390_GOT20
3609 ENUMX
3610 BFD_RELOC_390_GOTPLT20
3611 ENUMX
3612 BFD_RELOC_390_TLS_GOTIE20
3613 ENUMDOC
3614 Long displacement extension.
3615
3616 ENUM
3617 BFD_RELOC_IP2K_FR9
3618 ENUMDOC
3619 Scenix IP2K - 9-bit register number / data address
3620 ENUM
3621 BFD_RELOC_IP2K_BANK
3622 ENUMDOC
3623 Scenix IP2K - 4-bit register/data bank number
3624 ENUM
3625 BFD_RELOC_IP2K_ADDR16CJP
3626 ENUMDOC
3627 Scenix IP2K - low 13 bits of instruction word address
3628 ENUM
3629 BFD_RELOC_IP2K_PAGE3
3630 ENUMDOC
3631 Scenix IP2K - high 3 bits of instruction word address
3632 ENUM
3633 BFD_RELOC_IP2K_LO8DATA
3634 ENUMX
3635 BFD_RELOC_IP2K_HI8DATA
3636 ENUMX
3637 BFD_RELOC_IP2K_EX8DATA
3638 ENUMDOC
3639 Scenix IP2K - ext/low/high 8 bits of data address
3640 ENUM
3641 BFD_RELOC_IP2K_LO8INSN
3642 ENUMX
3643 BFD_RELOC_IP2K_HI8INSN
3644 ENUMDOC
3645 Scenix IP2K - low/high 8 bits of instruction word address
3646 ENUM
3647 BFD_RELOC_IP2K_PC_SKIP
3648 ENUMDOC
3649 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3650 ENUM
3651 BFD_RELOC_IP2K_TEXT
3652 ENUMDOC
3653 Scenix IP2K - 16 bit word address in text section.
3654 ENUM
3655 BFD_RELOC_IP2K_FR_OFFSET
3656 ENUMDOC
3657 Scenix IP2K - 7-bit sp or dp offset
3658 ENUM
3659 BFD_RELOC_VPE4KMATH_DATA
3660 ENUMX
3661 BFD_RELOC_VPE4KMATH_INSN
3662 ENUMDOC
3663 Scenix VPE4K coprocessor - data/insn-space addressing
3664
3665 ENUM
3666 BFD_RELOC_VTABLE_INHERIT
3667 ENUMX
3668 BFD_RELOC_VTABLE_ENTRY
3669 ENUMDOC
3670 These two relocations are used by the linker to determine which of
3671 the entries in a C++ virtual function table are actually used. When
3672 the --gc-sections option is given, the linker will zero out the entries
3673 that are not used, so that the code for those functions need not be
3674 included in the output.
3675
3676 VTABLE_INHERIT is a zero-space relocation used to describe to the
3677 linker the inheritance tree of a C++ virtual function table. The
3678 relocation's symbol should be the parent class' vtable, and the
3679 relocation should be located at the child vtable.
3680
3681 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3682 virtual function table entry. The reloc's symbol should refer to the
3683 table of the class mentioned in the code. Off of that base, an offset
3684 describes the entry that is being used. For Rela hosts, this offset
3685 is stored in the reloc's addend. For Rel hosts, we are forced to put
3686 this offset in the reloc's section offset.
3687
3688 ENUM
3689 BFD_RELOC_IA64_IMM14
3690 ENUMX
3691 BFD_RELOC_IA64_IMM22
3692 ENUMX
3693 BFD_RELOC_IA64_IMM64
3694 ENUMX
3695 BFD_RELOC_IA64_DIR32MSB
3696 ENUMX
3697 BFD_RELOC_IA64_DIR32LSB
3698 ENUMX
3699 BFD_RELOC_IA64_DIR64MSB
3700 ENUMX
3701 BFD_RELOC_IA64_DIR64LSB
3702 ENUMX
3703 BFD_RELOC_IA64_GPREL22
3704 ENUMX
3705 BFD_RELOC_IA64_GPREL64I
3706 ENUMX
3707 BFD_RELOC_IA64_GPREL32MSB
3708 ENUMX
3709 BFD_RELOC_IA64_GPREL32LSB
3710 ENUMX
3711 BFD_RELOC_IA64_GPREL64MSB
3712 ENUMX
3713 BFD_RELOC_IA64_GPREL64LSB
3714 ENUMX
3715 BFD_RELOC_IA64_LTOFF22
3716 ENUMX
3717 BFD_RELOC_IA64_LTOFF64I
3718 ENUMX
3719 BFD_RELOC_IA64_PLTOFF22
3720 ENUMX
3721 BFD_RELOC_IA64_PLTOFF64I
3722 ENUMX
3723 BFD_RELOC_IA64_PLTOFF64MSB
3724 ENUMX
3725 BFD_RELOC_IA64_PLTOFF64LSB
3726 ENUMX
3727 BFD_RELOC_IA64_FPTR64I
3728 ENUMX
3729 BFD_RELOC_IA64_FPTR32MSB
3730 ENUMX
3731 BFD_RELOC_IA64_FPTR32LSB
3732 ENUMX
3733 BFD_RELOC_IA64_FPTR64MSB
3734 ENUMX
3735 BFD_RELOC_IA64_FPTR64LSB
3736 ENUMX
3737 BFD_RELOC_IA64_PCREL21B
3738 ENUMX
3739 BFD_RELOC_IA64_PCREL21BI
3740 ENUMX
3741 BFD_RELOC_IA64_PCREL21M
3742 ENUMX
3743 BFD_RELOC_IA64_PCREL21F
3744 ENUMX
3745 BFD_RELOC_IA64_PCREL22
3746 ENUMX
3747 BFD_RELOC_IA64_PCREL60B
3748 ENUMX
3749 BFD_RELOC_IA64_PCREL64I
3750 ENUMX
3751 BFD_RELOC_IA64_PCREL32MSB
3752 ENUMX
3753 BFD_RELOC_IA64_PCREL32LSB
3754 ENUMX
3755 BFD_RELOC_IA64_PCREL64MSB
3756 ENUMX
3757 BFD_RELOC_IA64_PCREL64LSB
3758 ENUMX
3759 BFD_RELOC_IA64_LTOFF_FPTR22
3760 ENUMX
3761 BFD_RELOC_IA64_LTOFF_FPTR64I
3762 ENUMX
3763 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3764 ENUMX
3765 BFD_RELOC_IA64_LTOFF_FPTR32LSB
3766 ENUMX
3767 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3768 ENUMX
3769 BFD_RELOC_IA64_LTOFF_FPTR64LSB
3770 ENUMX
3771 BFD_RELOC_IA64_SEGREL32MSB
3772 ENUMX
3773 BFD_RELOC_IA64_SEGREL32LSB
3774 ENUMX
3775 BFD_RELOC_IA64_SEGREL64MSB
3776 ENUMX
3777 BFD_RELOC_IA64_SEGREL64LSB
3778 ENUMX
3779 BFD_RELOC_IA64_SECREL32MSB
3780 ENUMX
3781 BFD_RELOC_IA64_SECREL32LSB
3782 ENUMX
3783 BFD_RELOC_IA64_SECREL64MSB
3784 ENUMX
3785 BFD_RELOC_IA64_SECREL64LSB
3786 ENUMX
3787 BFD_RELOC_IA64_REL32MSB
3788 ENUMX
3789 BFD_RELOC_IA64_REL32LSB
3790 ENUMX
3791 BFD_RELOC_IA64_REL64MSB
3792 ENUMX
3793 BFD_RELOC_IA64_REL64LSB
3794 ENUMX
3795 BFD_RELOC_IA64_LTV32MSB
3796 ENUMX
3797 BFD_RELOC_IA64_LTV32LSB
3798 ENUMX
3799 BFD_RELOC_IA64_LTV64MSB
3800 ENUMX
3801 BFD_RELOC_IA64_LTV64LSB
3802 ENUMX
3803 BFD_RELOC_IA64_IPLTMSB
3804 ENUMX
3805 BFD_RELOC_IA64_IPLTLSB
3806 ENUMX
3807 BFD_RELOC_IA64_COPY
3808 ENUMX
3809 BFD_RELOC_IA64_LTOFF22X
3810 ENUMX
3811 BFD_RELOC_IA64_LDXMOV
3812 ENUMX
3813 BFD_RELOC_IA64_TPREL14
3814 ENUMX
3815 BFD_RELOC_IA64_TPREL22
3816 ENUMX
3817 BFD_RELOC_IA64_TPREL64I
3818 ENUMX
3819 BFD_RELOC_IA64_TPREL64MSB
3820 ENUMX
3821 BFD_RELOC_IA64_TPREL64LSB
3822 ENUMX
3823 BFD_RELOC_IA64_LTOFF_TPREL22
3824 ENUMX
3825 BFD_RELOC_IA64_DTPMOD64MSB
3826 ENUMX
3827 BFD_RELOC_IA64_DTPMOD64LSB
3828 ENUMX
3829 BFD_RELOC_IA64_LTOFF_DTPMOD22
3830 ENUMX
3831 BFD_RELOC_IA64_DTPREL14
3832 ENUMX
3833 BFD_RELOC_IA64_DTPREL22
3834 ENUMX
3835 BFD_RELOC_IA64_DTPREL64I
3836 ENUMX
3837 BFD_RELOC_IA64_DTPREL32MSB
3838 ENUMX
3839 BFD_RELOC_IA64_DTPREL32LSB
3840 ENUMX
3841 BFD_RELOC_IA64_DTPREL64MSB
3842 ENUMX
3843 BFD_RELOC_IA64_DTPREL64LSB
3844 ENUMX
3845 BFD_RELOC_IA64_LTOFF_DTPREL22
3846 ENUMDOC
3847 Intel IA64 Relocations.
3848
3849 ENUM
3850 BFD_RELOC_M68HC11_HI8
3851 ENUMDOC
3852 Motorola 68HC11 reloc.
3853 This is the 8 bit high part of an absolute address.
3854 ENUM
3855 BFD_RELOC_M68HC11_LO8
3856 ENUMDOC
3857 Motorola 68HC11 reloc.
3858 This is the 8 bit low part of an absolute address.
3859 ENUM
3860 BFD_RELOC_M68HC11_3B
3861 ENUMDOC
3862 Motorola 68HC11 reloc.
3863 This is the 3 bit of a value.
3864 ENUM
3865 BFD_RELOC_M68HC11_RL_JUMP
3866 ENUMDOC
3867 Motorola 68HC11 reloc.
3868 This reloc marks the beginning of a jump/call instruction.
3869 It is used for linker relaxation to correctly identify beginning
3870 of instruction and change some branches to use PC-relative
3871 addressing mode.
3872 ENUM
3873 BFD_RELOC_M68HC11_RL_GROUP
3874 ENUMDOC
3875 Motorola 68HC11 reloc.
3876 This reloc marks a group of several instructions that gcc generates
3877 and for which the linker relaxation pass can modify and/or remove
3878 some of them.
3879 ENUM
3880 BFD_RELOC_M68HC11_LO16
3881 ENUMDOC
3882 Motorola 68HC11 reloc.
3883 This is the 16-bit lower part of an address. It is used for 'call'
3884 instruction to specify the symbol address without any special
3885 transformation (due to memory bank window).
3886 ENUM
3887 BFD_RELOC_M68HC11_PAGE
3888 ENUMDOC
3889 Motorola 68HC11 reloc.
3890 This is a 8-bit reloc that specifies the page number of an address.
3891 It is used by 'call' instruction to specify the page number of
3892 the symbol.
3893 ENUM
3894 BFD_RELOC_M68HC11_24
3895 ENUMDOC
3896 Motorola 68HC11 reloc.
3897 This is a 24-bit reloc that represents the address with a 16-bit
3898 value and a 8-bit page number. The symbol address is transformed
3899 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3900 ENUM
3901 BFD_RELOC_M68HC12_5B
3902 ENUMDOC
3903 Motorola 68HC12 reloc.
3904 This is the 5 bits of a value.
3905
3906 ENUM
3907 BFD_RELOC_16C_NUM08
3908 ENUMX
3909 BFD_RELOC_16C_NUM08_C
3910 ENUMX
3911 BFD_RELOC_16C_NUM16
3912 ENUMX
3913 BFD_RELOC_16C_NUM16_C
3914 ENUMX
3915 BFD_RELOC_16C_NUM32
3916 ENUMX
3917 BFD_RELOC_16C_NUM32_C
3918 ENUMX
3919 BFD_RELOC_16C_DISP04
3920 ENUMX
3921 BFD_RELOC_16C_DISP04_C
3922 ENUMX
3923 BFD_RELOC_16C_DISP08
3924 ENUMX
3925 BFD_RELOC_16C_DISP08_C
3926 ENUMX
3927 BFD_RELOC_16C_DISP16
3928 ENUMX
3929 BFD_RELOC_16C_DISP16_C
3930 ENUMX
3931 BFD_RELOC_16C_DISP24
3932 ENUMX
3933 BFD_RELOC_16C_DISP24_C
3934 ENUMX
3935 BFD_RELOC_16C_DISP24a
3936 ENUMX
3937 BFD_RELOC_16C_DISP24a_C
3938 ENUMX
3939 BFD_RELOC_16C_REG04
3940 ENUMX
3941 BFD_RELOC_16C_REG04_C
3942 ENUMX
3943 BFD_RELOC_16C_REG04a
3944 ENUMX
3945 BFD_RELOC_16C_REG04a_C
3946 ENUMX
3947 BFD_RELOC_16C_REG14
3948 ENUMX
3949 BFD_RELOC_16C_REG14_C
3950 ENUMX
3951 BFD_RELOC_16C_REG16
3952 ENUMX
3953 BFD_RELOC_16C_REG16_C
3954 ENUMX
3955 BFD_RELOC_16C_REG20
3956 ENUMX
3957 BFD_RELOC_16C_REG20_C
3958 ENUMX
3959 BFD_RELOC_16C_ABS20
3960 ENUMX
3961 BFD_RELOC_16C_ABS20_C
3962 ENUMX
3963 BFD_RELOC_16C_ABS24
3964 ENUMX
3965 BFD_RELOC_16C_ABS24_C
3966 ENUMX
3967 BFD_RELOC_16C_IMM04
3968 ENUMX
3969 BFD_RELOC_16C_IMM04_C
3970 ENUMX
3971 BFD_RELOC_16C_IMM16
3972 ENUMX
3973 BFD_RELOC_16C_IMM16_C
3974 ENUMX
3975 BFD_RELOC_16C_IMM20
3976 ENUMX
3977 BFD_RELOC_16C_IMM20_C
3978 ENUMX
3979 BFD_RELOC_16C_IMM24
3980 ENUMX
3981 BFD_RELOC_16C_IMM24_C
3982 ENUMX
3983 BFD_RELOC_16C_IMM32
3984 ENUMX
3985 BFD_RELOC_16C_IMM32_C
3986 ENUMDOC
3987 NS CR16C Relocations.
3988
3989 ENUM
3990 BFD_RELOC_CRX_REL4
3991 ENUMX
3992 BFD_RELOC_CRX_REL8
3993 ENUMX
3994 BFD_RELOC_CRX_REL8_CMP
3995 ENUMX
3996 BFD_RELOC_CRX_REL16
3997 ENUMX
3998 BFD_RELOC_CRX_REL24
3999 ENUMX
4000 BFD_RELOC_CRX_REL32
4001 ENUMX
4002 BFD_RELOC_CRX_REGREL12
4003 ENUMX
4004 BFD_RELOC_CRX_REGREL22
4005 ENUMX
4006 BFD_RELOC_CRX_REGREL28
4007 ENUMX
4008 BFD_RELOC_CRX_REGREL32
4009 ENUMX
4010 BFD_RELOC_CRX_ABS16
4011 ENUMX
4012 BFD_RELOC_CRX_ABS32
4013 ENUMX
4014 BFD_RELOC_CRX_NUM8
4015 ENUMX
4016 BFD_RELOC_CRX_NUM16
4017 ENUMX
4018 BFD_RELOC_CRX_NUM32
4019 ENUMX
4020 BFD_RELOC_CRX_IMM16
4021 ENUMX
4022 BFD_RELOC_CRX_IMM32
4023 ENUMX
4024 BFD_RELOC_CRX_SWITCH8
4025 ENUMX
4026 BFD_RELOC_CRX_SWITCH16
4027 ENUMX
4028 BFD_RELOC_CRX_SWITCH32
4029 ENUMDOC
4030 NS CRX Relocations.
4031
4032 ENUM
4033 BFD_RELOC_CRIS_BDISP8
4034 ENUMX
4035 BFD_RELOC_CRIS_UNSIGNED_5
4036 ENUMX
4037 BFD_RELOC_CRIS_SIGNED_6
4038 ENUMX
4039 BFD_RELOC_CRIS_UNSIGNED_6
4040 ENUMX
4041 BFD_RELOC_CRIS_SIGNED_8
4042 ENUMX
4043 BFD_RELOC_CRIS_UNSIGNED_8
4044 ENUMX
4045 BFD_RELOC_CRIS_SIGNED_16
4046 ENUMX
4047 BFD_RELOC_CRIS_UNSIGNED_16
4048 ENUMX
4049 BFD_RELOC_CRIS_LAPCQ_OFFSET
4050 ENUMX
4051 BFD_RELOC_CRIS_UNSIGNED_4
4052 ENUMDOC
4053 These relocs are only used within the CRIS assembler. They are not
4054 (at present) written to any object files.
4055 ENUM
4056 BFD_RELOC_CRIS_COPY
4057 ENUMX
4058 BFD_RELOC_CRIS_GLOB_DAT
4059 ENUMX
4060 BFD_RELOC_CRIS_JUMP_SLOT
4061 ENUMX
4062 BFD_RELOC_CRIS_RELATIVE
4063 ENUMDOC
4064 Relocs used in ELF shared libraries for CRIS.
4065 ENUM
4066 BFD_RELOC_CRIS_32_GOT
4067 ENUMDOC
4068 32-bit offset to symbol-entry within GOT.
4069 ENUM
4070 BFD_RELOC_CRIS_16_GOT
4071 ENUMDOC
4072 16-bit offset to symbol-entry within GOT.
4073 ENUM
4074 BFD_RELOC_CRIS_32_GOTPLT
4075 ENUMDOC
4076 32-bit offset to symbol-entry within GOT, with PLT handling.
4077 ENUM
4078 BFD_RELOC_CRIS_16_GOTPLT
4079 ENUMDOC
4080 16-bit offset to symbol-entry within GOT, with PLT handling.
4081 ENUM
4082 BFD_RELOC_CRIS_32_GOTREL
4083 ENUMDOC
4084 32-bit offset to symbol, relative to GOT.
4085 ENUM
4086 BFD_RELOC_CRIS_32_PLT_GOTREL
4087 ENUMDOC
4088 32-bit offset to symbol with PLT entry, relative to GOT.
4089 ENUM
4090 BFD_RELOC_CRIS_32_PLT_PCREL
4091 ENUMDOC
4092 32-bit offset to symbol with PLT entry, relative to this relocation.
4093
4094 ENUM
4095 BFD_RELOC_860_COPY
4096 ENUMX
4097 BFD_RELOC_860_GLOB_DAT
4098 ENUMX
4099 BFD_RELOC_860_JUMP_SLOT
4100 ENUMX
4101 BFD_RELOC_860_RELATIVE
4102 ENUMX
4103 BFD_RELOC_860_PC26
4104 ENUMX
4105 BFD_RELOC_860_PLT26
4106 ENUMX
4107 BFD_RELOC_860_PC16
4108 ENUMX
4109 BFD_RELOC_860_LOW0
4110 ENUMX
4111 BFD_RELOC_860_SPLIT0
4112 ENUMX
4113 BFD_RELOC_860_LOW1
4114 ENUMX
4115 BFD_RELOC_860_SPLIT1
4116 ENUMX
4117 BFD_RELOC_860_LOW2
4118 ENUMX
4119 BFD_RELOC_860_SPLIT2
4120 ENUMX
4121 BFD_RELOC_860_LOW3
4122 ENUMX
4123 BFD_RELOC_860_LOGOT0
4124 ENUMX
4125 BFD_RELOC_860_SPGOT0
4126 ENUMX
4127 BFD_RELOC_860_LOGOT1
4128 ENUMX
4129 BFD_RELOC_860_SPGOT1
4130 ENUMX
4131 BFD_RELOC_860_LOGOTOFF0
4132 ENUMX
4133 BFD_RELOC_860_SPGOTOFF0
4134 ENUMX
4135 BFD_RELOC_860_LOGOTOFF1
4136 ENUMX
4137 BFD_RELOC_860_SPGOTOFF1
4138 ENUMX
4139 BFD_RELOC_860_LOGOTOFF2
4140 ENUMX
4141 BFD_RELOC_860_LOGOTOFF3
4142 ENUMX
4143 BFD_RELOC_860_LOPC
4144 ENUMX
4145 BFD_RELOC_860_HIGHADJ
4146 ENUMX
4147 BFD_RELOC_860_HAGOT
4148 ENUMX
4149 BFD_RELOC_860_HAGOTOFF
4150 ENUMX
4151 BFD_RELOC_860_HAPC
4152 ENUMX
4153 BFD_RELOC_860_HIGH
4154 ENUMX
4155 BFD_RELOC_860_HIGOT
4156 ENUMX
4157 BFD_RELOC_860_HIGOTOFF
4158 ENUMDOC
4159 Intel i860 Relocations.
4160
4161 ENUM
4162 BFD_RELOC_OPENRISC_ABS_26
4163 ENUMX
4164 BFD_RELOC_OPENRISC_REL_26
4165 ENUMDOC
4166 OpenRISC Relocations.
4167
4168 ENUM
4169 BFD_RELOC_H8_DIR16A8
4170 ENUMX
4171 BFD_RELOC_H8_DIR16R8
4172 ENUMX
4173 BFD_RELOC_H8_DIR24A8
4174 ENUMX
4175 BFD_RELOC_H8_DIR24R8
4176 ENUMX
4177 BFD_RELOC_H8_DIR32A16
4178 ENUMDOC
4179 H8 elf Relocations.
4180
4181 ENUM
4182 BFD_RELOC_XSTORMY16_REL_12
4183 ENUMX
4184 BFD_RELOC_XSTORMY16_12
4185 ENUMX
4186 BFD_RELOC_XSTORMY16_24
4187 ENUMX
4188 BFD_RELOC_XSTORMY16_FPTR16
4189 ENUMDOC
4190 Sony Xstormy16 Relocations.
4191
4192 ENUM
4193 BFD_RELOC_VAX_GLOB_DAT
4194 ENUMX
4195 BFD_RELOC_VAX_JMP_SLOT
4196 ENUMX
4197 BFD_RELOC_VAX_RELATIVE
4198 ENUMDOC
4199 Relocations used by VAX ELF.
4200
4201 ENUM
4202 BFD_RELOC_MSP430_10_PCREL
4203 ENUMX
4204 BFD_RELOC_MSP430_16_PCREL
4205 ENUMX
4206 BFD_RELOC_MSP430_16
4207 ENUMX
4208 BFD_RELOC_MSP430_16_PCREL_BYTE
4209 ENUMX
4210 BFD_RELOC_MSP430_16_BYTE
4211 ENUMX
4212 BFD_RELOC_MSP430_2X_PCREL
4213 ENUMX
4214 BFD_RELOC_MSP430_RL_PCREL
4215 ENUMDOC
4216 msp430 specific relocation codes
4217
4218 ENUM
4219 BFD_RELOC_IQ2000_OFFSET_16
4220 ENUMX
4221 BFD_RELOC_IQ2000_OFFSET_21
4222 ENUMX
4223 BFD_RELOC_IQ2000_UHI16
4224 ENUMDOC
4225 IQ2000 Relocations.
4226
4227 ENUM
4228 BFD_RELOC_XTENSA_RTLD
4229 ENUMDOC
4230 Special Xtensa relocation used only by PLT entries in ELF shared
4231 objects to indicate that the runtime linker should set the value
4232 to one of its own internal functions or data structures.
4233 ENUM
4234 BFD_RELOC_XTENSA_GLOB_DAT
4235 ENUMX
4236 BFD_RELOC_XTENSA_JMP_SLOT
4237 ENUMX
4238 BFD_RELOC_XTENSA_RELATIVE
4239 ENUMDOC
4240 Xtensa relocations for ELF shared objects.
4241 ENUM
4242 BFD_RELOC_XTENSA_PLT
4243 ENUMDOC
4244 Xtensa relocation used in ELF object files for symbols that may require
4245 PLT entries. Otherwise, this is just a generic 32-bit relocation.
4246 ENUM
4247 BFD_RELOC_XTENSA_DIFF8
4248 ENUMX
4249 BFD_RELOC_XTENSA_DIFF16
4250 ENUMX
4251 BFD_RELOC_XTENSA_DIFF32
4252 ENUMDOC
4253 Xtensa relocations to mark the difference of two local symbols.
4254 These are only needed to support linker relaxation and can be ignored
4255 when not relaxing. The field is set to the value of the difference
4256 assuming no relaxation. The relocation encodes the position of the
4257 first symbol so the linker can determine whether to adjust the field
4258 value.
4259 ENUM
4260 BFD_RELOC_XTENSA_SLOT0_OP
4261 ENUMX
4262 BFD_RELOC_XTENSA_SLOT1_OP
4263 ENUMX
4264 BFD_RELOC_XTENSA_SLOT2_OP
4265 ENUMX
4266 BFD_RELOC_XTENSA_SLOT3_OP
4267 ENUMX
4268 BFD_RELOC_XTENSA_SLOT4_OP
4269 ENUMX
4270 BFD_RELOC_XTENSA_SLOT5_OP
4271 ENUMX
4272 BFD_RELOC_XTENSA_SLOT6_OP
4273 ENUMX
4274 BFD_RELOC_XTENSA_SLOT7_OP
4275 ENUMX
4276 BFD_RELOC_XTENSA_SLOT8_OP
4277 ENUMX
4278 BFD_RELOC_XTENSA_SLOT9_OP
4279 ENUMX
4280 BFD_RELOC_XTENSA_SLOT10_OP
4281 ENUMX
4282 BFD_RELOC_XTENSA_SLOT11_OP
4283 ENUMX
4284 BFD_RELOC_XTENSA_SLOT12_OP
4285 ENUMX
4286 BFD_RELOC_XTENSA_SLOT13_OP
4287 ENUMX
4288 BFD_RELOC_XTENSA_SLOT14_OP
4289 ENUMDOC
4290 Generic Xtensa relocations for instruction operands. Only the slot
4291 number is encoded in the relocation. The relocation applies to the
4292 last PC-relative immediate operand, or if there are no PC-relative
4293 immediates, to the last immediate operand.
4294 ENUM
4295 BFD_RELOC_XTENSA_SLOT0_ALT
4296 ENUMX
4297 BFD_RELOC_XTENSA_SLOT1_ALT
4298 ENUMX
4299 BFD_RELOC_XTENSA_SLOT2_ALT
4300 ENUMX
4301 BFD_RELOC_XTENSA_SLOT3_ALT
4302 ENUMX
4303 BFD_RELOC_XTENSA_SLOT4_ALT
4304 ENUMX
4305 BFD_RELOC_XTENSA_SLOT5_ALT
4306 ENUMX
4307 BFD_RELOC_XTENSA_SLOT6_ALT
4308 ENUMX
4309 BFD_RELOC_XTENSA_SLOT7_ALT
4310 ENUMX
4311 BFD_RELOC_XTENSA_SLOT8_ALT
4312 ENUMX
4313 BFD_RELOC_XTENSA_SLOT9_ALT
4314 ENUMX
4315 BFD_RELOC_XTENSA_SLOT10_ALT
4316 ENUMX
4317 BFD_RELOC_XTENSA_SLOT11_ALT
4318 ENUMX
4319 BFD_RELOC_XTENSA_SLOT12_ALT
4320 ENUMX
4321 BFD_RELOC_XTENSA_SLOT13_ALT
4322 ENUMX
4323 BFD_RELOC_XTENSA_SLOT14_ALT
4324 ENUMDOC
4325 Alternate Xtensa relocations. Only the slot is encoded in the
4326 relocation. The meaning of these relocations is opcode-specific.
4327 ENUM
4328 BFD_RELOC_XTENSA_OP0
4329 ENUMX
4330 BFD_RELOC_XTENSA_OP1
4331 ENUMX
4332 BFD_RELOC_XTENSA_OP2
4333 ENUMDOC
4334 Xtensa relocations for backward compatibility. These have all been
4335 replaced by BFD_RELOC_XTENSA_SLOT0_OP.
4336 ENUM
4337 BFD_RELOC_XTENSA_ASM_EXPAND
4338 ENUMDOC
4339 Xtensa relocation to mark that the assembler expanded the
4340 instructions from an original target. The expansion size is
4341 encoded in the reloc size.
4342 ENUM
4343 BFD_RELOC_XTENSA_ASM_SIMPLIFY
4344 ENUMDOC
4345 Xtensa relocation to mark that the linker should simplify
4346 assembler-expanded instructions. This is commonly used
4347 internally by the linker after analysis of a
4348 BFD_RELOC_XTENSA_ASM_EXPAND.
4349
4350 ENDSENUM
4351 BFD_RELOC_UNUSED
4352 CODE_FRAGMENT
4353 .
4354 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4355 */
4356
4357 /*
4358 FUNCTION
4359 bfd_reloc_type_lookup
4360
4361 SYNOPSIS
4362 reloc_howto_type *bfd_reloc_type_lookup
4363 (bfd *abfd, bfd_reloc_code_real_type code);
4364
4365 DESCRIPTION
4366 Return a pointer to a howto structure which, when
4367 invoked, will perform the relocation @var{code} on data from the
4368 architecture noted.
4369
4370 */
4371
4372 reloc_howto_type *
4373 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4374 {
4375 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4376 }
4377
4378 static reloc_howto_type bfd_howto_32 =
4379 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
4380
4381 /*
4382 INTERNAL_FUNCTION
4383 bfd_default_reloc_type_lookup
4384
4385 SYNOPSIS
4386 reloc_howto_type *bfd_default_reloc_type_lookup
4387 (bfd *abfd, bfd_reloc_code_real_type code);
4388
4389 DESCRIPTION
4390 Provides a default relocation lookup routine for any architecture.
4391
4392 */
4393
4394 reloc_howto_type *
4395 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4396 {
4397 switch (code)
4398 {
4399 case BFD_RELOC_CTOR:
4400 /* The type of reloc used in a ctor, which will be as wide as the
4401 address - so either a 64, 32, or 16 bitter. */
4402 switch (bfd_get_arch_info (abfd)->bits_per_address)
4403 {
4404 case 64:
4405 BFD_FAIL ();
4406 case 32:
4407 return &bfd_howto_32;
4408 case 16:
4409 BFD_FAIL ();
4410 default:
4411 BFD_FAIL ();
4412 }
4413 default:
4414 BFD_FAIL ();
4415 }
4416 return NULL;
4417 }
4418
4419 /*
4420 FUNCTION
4421 bfd_get_reloc_code_name
4422
4423 SYNOPSIS
4424 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4425
4426 DESCRIPTION
4427 Provides a printable name for the supplied relocation code.
4428 Useful mainly for printing error messages.
4429 */
4430
4431 const char *
4432 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4433 {
4434 if (code > BFD_RELOC_UNUSED)
4435 return 0;
4436 return bfd_reloc_code_real_names[code];
4437 }
4438
4439 /*
4440 INTERNAL_FUNCTION
4441 bfd_generic_relax_section
4442
4443 SYNOPSIS
4444 bfd_boolean bfd_generic_relax_section
4445 (bfd *abfd,
4446 asection *section,
4447 struct bfd_link_info *,
4448 bfd_boolean *);
4449
4450 DESCRIPTION
4451 Provides default handling for relaxing for back ends which
4452 don't do relaxing.
4453 */
4454
4455 bfd_boolean
4456 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4457 asection *section ATTRIBUTE_UNUSED,
4458 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4459 bfd_boolean *again)
4460 {
4461 *again = FALSE;
4462 return TRUE;
4463 }
4464
4465 /*
4466 INTERNAL_FUNCTION
4467 bfd_generic_gc_sections
4468
4469 SYNOPSIS
4470 bfd_boolean bfd_generic_gc_sections
4471 (bfd *, struct bfd_link_info *);
4472
4473 DESCRIPTION
4474 Provides default handling for relaxing for back ends which
4475 don't do section gc -- i.e., does nothing.
4476 */
4477
4478 bfd_boolean
4479 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4480 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4481 {
4482 return TRUE;
4483 }
4484
4485 /*
4486 INTERNAL_FUNCTION
4487 bfd_generic_merge_sections
4488
4489 SYNOPSIS
4490 bfd_boolean bfd_generic_merge_sections
4491 (bfd *, struct bfd_link_info *);
4492
4493 DESCRIPTION
4494 Provides default handling for SEC_MERGE section merging for back ends
4495 which don't have SEC_MERGE support -- i.e., does nothing.
4496 */
4497
4498 bfd_boolean
4499 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4500 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4501 {
4502 return TRUE;
4503 }
4504
4505 /*
4506 INTERNAL_FUNCTION
4507 bfd_generic_get_relocated_section_contents
4508
4509 SYNOPSIS
4510 bfd_byte *bfd_generic_get_relocated_section_contents
4511 (bfd *abfd,
4512 struct bfd_link_info *link_info,
4513 struct bfd_link_order *link_order,
4514 bfd_byte *data,
4515 bfd_boolean relocatable,
4516 asymbol **symbols);
4517
4518 DESCRIPTION
4519 Provides default handling of relocation effort for back ends
4520 which can't be bothered to do it efficiently.
4521
4522 */
4523
4524 bfd_byte *
4525 bfd_generic_get_relocated_section_contents (bfd *abfd,
4526 struct bfd_link_info *link_info,
4527 struct bfd_link_order *link_order,
4528 bfd_byte *data,
4529 bfd_boolean relocatable,
4530 asymbol **symbols)
4531 {
4532 /* Get enough memory to hold the stuff. */
4533 bfd *input_bfd = link_order->u.indirect.section->owner;
4534 asection *input_section = link_order->u.indirect.section;
4535
4536 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4537 arelent **reloc_vector = NULL;
4538 long reloc_count;
4539 bfd_size_type sz;
4540
4541 if (reloc_size < 0)
4542 goto error_return;
4543
4544 reloc_vector = bfd_malloc (reloc_size);
4545 if (reloc_vector == NULL && reloc_size != 0)
4546 goto error_return;
4547
4548 /* Read in the section. */
4549 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4550 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
4551 goto error_return;
4552
4553 reloc_count = bfd_canonicalize_reloc (input_bfd,
4554 input_section,
4555 reloc_vector,
4556 symbols);
4557 if (reloc_count < 0)
4558 goto error_return;
4559
4560 if (reloc_count > 0)
4561 {
4562 arelent **parent;
4563 for (parent = reloc_vector; *parent != NULL; parent++)
4564 {
4565 char *error_message = NULL;
4566 bfd_reloc_status_type r =
4567 bfd_perform_relocation (input_bfd,
4568 *parent,
4569 data,
4570 input_section,
4571 relocatable ? abfd : NULL,
4572 &error_message);
4573
4574 if (relocatable)
4575 {
4576 asection *os = input_section->output_section;
4577
4578 /* A partial link, so keep the relocs. */
4579 os->orelocation[os->reloc_count] = *parent;
4580 os->reloc_count++;
4581 }
4582
4583 if (r != bfd_reloc_ok)
4584 {
4585 switch (r)
4586 {
4587 case bfd_reloc_undefined:
4588 if (!((*link_info->callbacks->undefined_symbol)
4589 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4590 input_bfd, input_section, (*parent)->address,
4591 TRUE)))
4592 goto error_return;
4593 break;
4594 case bfd_reloc_dangerous:
4595 BFD_ASSERT (error_message != NULL);
4596 if (!((*link_info->callbacks->reloc_dangerous)
4597 (link_info, error_message, input_bfd, input_section,
4598 (*parent)->address)))
4599 goto error_return;
4600 break;
4601 case bfd_reloc_overflow:
4602 if (!((*link_info->callbacks->reloc_overflow)
4603 (link_info, NULL,
4604 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4605 (*parent)->howto->name, (*parent)->addend,
4606 input_bfd, input_section, (*parent)->address)))
4607 goto error_return;
4608 break;
4609 case bfd_reloc_outofrange:
4610 default:
4611 abort ();
4612 break;
4613 }
4614
4615 }
4616 }
4617 }
4618 if (reloc_vector != NULL)
4619 free (reloc_vector);
4620 return data;
4621
4622 error_return:
4623 if (reloc_vector != NULL)
4624 free (reloc_vector);
4625 return NULL;
4626 }
GDB Binutils - Deliverables
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