bfd/:
[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
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 ENUMDOC
2129 MIPS ELF relocations.
2130 COMMENT
2131
2132 ENUM
2133 BFD_RELOC_FRV_LABEL16
2134 ENUMX
2135 BFD_RELOC_FRV_LABEL24
2136 ENUMX
2137 BFD_RELOC_FRV_LO16
2138 ENUMX
2139 BFD_RELOC_FRV_HI16
2140 ENUMX
2141 BFD_RELOC_FRV_GPREL12
2142 ENUMX
2143 BFD_RELOC_FRV_GPRELU12
2144 ENUMX
2145 BFD_RELOC_FRV_GPREL32
2146 ENUMX
2147 BFD_RELOC_FRV_GPRELHI
2148 ENUMX
2149 BFD_RELOC_FRV_GPRELLO
2150 ENUMX
2151 BFD_RELOC_FRV_GOT12
2152 ENUMX
2153 BFD_RELOC_FRV_GOTHI
2154 ENUMX
2155 BFD_RELOC_FRV_GOTLO
2156 ENUMX
2157 BFD_RELOC_FRV_FUNCDESC
2158 ENUMX
2159 BFD_RELOC_FRV_FUNCDESC_GOT12
2160 ENUMX
2161 BFD_RELOC_FRV_FUNCDESC_GOTHI
2162 ENUMX
2163 BFD_RELOC_FRV_FUNCDESC_GOTLO
2164 ENUMX
2165 BFD_RELOC_FRV_FUNCDESC_VALUE
2166 ENUMX
2167 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2168 ENUMX
2169 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2170 ENUMX
2171 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2172 ENUMX
2173 BFD_RELOC_FRV_GOTOFF12
2174 ENUMX
2175 BFD_RELOC_FRV_GOTOFFHI
2176 ENUMX
2177 BFD_RELOC_FRV_GOTOFFLO
2178 ENUMX
2179 BFD_RELOC_FRV_GETTLSOFF
2180 ENUMX
2181 BFD_RELOC_FRV_TLSDESC_VALUE
2182 ENUMX
2183 BFD_RELOC_FRV_GOTTLSDESC12
2184 ENUMX
2185 BFD_RELOC_FRV_GOTTLSDESCHI
2186 ENUMX
2187 BFD_RELOC_FRV_GOTTLSDESCLO
2188 ENUMX
2189 BFD_RELOC_FRV_TLSMOFF12
2190 ENUMX
2191 BFD_RELOC_FRV_TLSMOFFHI
2192 ENUMX
2193 BFD_RELOC_FRV_TLSMOFFLO
2194 ENUMX
2195 BFD_RELOC_FRV_GOTTLSOFF12
2196 ENUMX
2197 BFD_RELOC_FRV_GOTTLSOFFHI
2198 ENUMX
2199 BFD_RELOC_FRV_GOTTLSOFFLO
2200 ENUMX
2201 BFD_RELOC_FRV_TLSOFF
2202 ENUMX
2203 BFD_RELOC_FRV_TLSDESC_RELAX
2204 ENUMX
2205 BFD_RELOC_FRV_GETTLSOFF_RELAX
2206 ENUMX
2207 BFD_RELOC_FRV_TLSOFF_RELAX
2208 ENUMX
2209 BFD_RELOC_FRV_TLSMOFF
2210 ENUMDOC
2211 Fujitsu Frv Relocations.
2212 COMMENT
2213
2214 ENUM
2215 BFD_RELOC_MN10300_GOTOFF24
2216 ENUMDOC
2217 This is a 24bit GOT-relative reloc for the mn10300.
2218 ENUM
2219 BFD_RELOC_MN10300_GOT32
2220 ENUMDOC
2221 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2222 in the instruction.
2223 ENUM
2224 BFD_RELOC_MN10300_GOT24
2225 ENUMDOC
2226 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2227 in the instruction.
2228 ENUM
2229 BFD_RELOC_MN10300_GOT16
2230 ENUMDOC
2231 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2232 in the instruction.
2233 ENUM
2234 BFD_RELOC_MN10300_COPY
2235 ENUMDOC
2236 Copy symbol at runtime.
2237 ENUM
2238 BFD_RELOC_MN10300_GLOB_DAT
2239 ENUMDOC
2240 Create GOT entry.
2241 ENUM
2242 BFD_RELOC_MN10300_JMP_SLOT
2243 ENUMDOC
2244 Create PLT entry.
2245 ENUM
2246 BFD_RELOC_MN10300_RELATIVE
2247 ENUMDOC
2248 Adjust by program base.
2249 COMMENT
2250
2251 ENUM
2252 BFD_RELOC_386_GOT32
2253 ENUMX
2254 BFD_RELOC_386_PLT32
2255 ENUMX
2256 BFD_RELOC_386_COPY
2257 ENUMX
2258 BFD_RELOC_386_GLOB_DAT
2259 ENUMX
2260 BFD_RELOC_386_JUMP_SLOT
2261 ENUMX
2262 BFD_RELOC_386_RELATIVE
2263 ENUMX
2264 BFD_RELOC_386_GOTOFF
2265 ENUMX
2266 BFD_RELOC_386_GOTPC
2267 ENUMX
2268 BFD_RELOC_386_TLS_TPOFF
2269 ENUMX
2270 BFD_RELOC_386_TLS_IE
2271 ENUMX
2272 BFD_RELOC_386_TLS_GOTIE
2273 ENUMX
2274 BFD_RELOC_386_TLS_LE
2275 ENUMX
2276 BFD_RELOC_386_TLS_GD
2277 ENUMX
2278 BFD_RELOC_386_TLS_LDM
2279 ENUMX
2280 BFD_RELOC_386_TLS_LDO_32
2281 ENUMX
2282 BFD_RELOC_386_TLS_IE_32
2283 ENUMX
2284 BFD_RELOC_386_TLS_LE_32
2285 ENUMX
2286 BFD_RELOC_386_TLS_DTPMOD32
2287 ENUMX
2288 BFD_RELOC_386_TLS_DTPOFF32
2289 ENUMX
2290 BFD_RELOC_386_TLS_TPOFF32
2291 ENUMDOC
2292 i386/elf relocations
2293
2294 ENUM
2295 BFD_RELOC_X86_64_GOT32
2296 ENUMX
2297 BFD_RELOC_X86_64_PLT32
2298 ENUMX
2299 BFD_RELOC_X86_64_COPY
2300 ENUMX
2301 BFD_RELOC_X86_64_GLOB_DAT
2302 ENUMX
2303 BFD_RELOC_X86_64_JUMP_SLOT
2304 ENUMX
2305 BFD_RELOC_X86_64_RELATIVE
2306 ENUMX
2307 BFD_RELOC_X86_64_GOTPCREL
2308 ENUMX
2309 BFD_RELOC_X86_64_32S
2310 ENUMX
2311 BFD_RELOC_X86_64_DTPMOD64
2312 ENUMX
2313 BFD_RELOC_X86_64_DTPOFF64
2314 ENUMX
2315 BFD_RELOC_X86_64_TPOFF64
2316 ENUMX
2317 BFD_RELOC_X86_64_TLSGD
2318 ENUMX
2319 BFD_RELOC_X86_64_TLSLD
2320 ENUMX
2321 BFD_RELOC_X86_64_DTPOFF32
2322 ENUMX
2323 BFD_RELOC_X86_64_GOTTPOFF
2324 ENUMX
2325 BFD_RELOC_X86_64_TPOFF32
2326 ENUMDOC
2327 x86-64/elf relocations
2328
2329 ENUM
2330 BFD_RELOC_NS32K_IMM_8
2331 ENUMX
2332 BFD_RELOC_NS32K_IMM_16
2333 ENUMX
2334 BFD_RELOC_NS32K_IMM_32
2335 ENUMX
2336 BFD_RELOC_NS32K_IMM_8_PCREL
2337 ENUMX
2338 BFD_RELOC_NS32K_IMM_16_PCREL
2339 ENUMX
2340 BFD_RELOC_NS32K_IMM_32_PCREL
2341 ENUMX
2342 BFD_RELOC_NS32K_DISP_8
2343 ENUMX
2344 BFD_RELOC_NS32K_DISP_16
2345 ENUMX
2346 BFD_RELOC_NS32K_DISP_32
2347 ENUMX
2348 BFD_RELOC_NS32K_DISP_8_PCREL
2349 ENUMX
2350 BFD_RELOC_NS32K_DISP_16_PCREL
2351 ENUMX
2352 BFD_RELOC_NS32K_DISP_32_PCREL
2353 ENUMDOC
2354 ns32k relocations
2355
2356 ENUM
2357 BFD_RELOC_PDP11_DISP_8_PCREL
2358 ENUMX
2359 BFD_RELOC_PDP11_DISP_6_PCREL
2360 ENUMDOC
2361 PDP11 relocations
2362
2363 ENUM
2364 BFD_RELOC_PJ_CODE_HI16
2365 ENUMX
2366 BFD_RELOC_PJ_CODE_LO16
2367 ENUMX
2368 BFD_RELOC_PJ_CODE_DIR16
2369 ENUMX
2370 BFD_RELOC_PJ_CODE_DIR32
2371 ENUMX
2372 BFD_RELOC_PJ_CODE_REL16
2373 ENUMX
2374 BFD_RELOC_PJ_CODE_REL32
2375 ENUMDOC
2376 Picojava relocs. Not all of these appear in object files.
2377
2378 ENUM
2379 BFD_RELOC_PPC_B26
2380 ENUMX
2381 BFD_RELOC_PPC_BA26
2382 ENUMX
2383 BFD_RELOC_PPC_TOC16
2384 ENUMX
2385 BFD_RELOC_PPC_B16
2386 ENUMX
2387 BFD_RELOC_PPC_B16_BRTAKEN
2388 ENUMX
2389 BFD_RELOC_PPC_B16_BRNTAKEN
2390 ENUMX
2391 BFD_RELOC_PPC_BA16
2392 ENUMX
2393 BFD_RELOC_PPC_BA16_BRTAKEN
2394 ENUMX
2395 BFD_RELOC_PPC_BA16_BRNTAKEN
2396 ENUMX
2397 BFD_RELOC_PPC_COPY
2398 ENUMX
2399 BFD_RELOC_PPC_GLOB_DAT
2400 ENUMX
2401 BFD_RELOC_PPC_JMP_SLOT
2402 ENUMX
2403 BFD_RELOC_PPC_RELATIVE
2404 ENUMX
2405 BFD_RELOC_PPC_LOCAL24PC
2406 ENUMX
2407 BFD_RELOC_PPC_EMB_NADDR32
2408 ENUMX
2409 BFD_RELOC_PPC_EMB_NADDR16
2410 ENUMX
2411 BFD_RELOC_PPC_EMB_NADDR16_LO
2412 ENUMX
2413 BFD_RELOC_PPC_EMB_NADDR16_HI
2414 ENUMX
2415 BFD_RELOC_PPC_EMB_NADDR16_HA
2416 ENUMX
2417 BFD_RELOC_PPC_EMB_SDAI16
2418 ENUMX
2419 BFD_RELOC_PPC_EMB_SDA2I16
2420 ENUMX
2421 BFD_RELOC_PPC_EMB_SDA2REL
2422 ENUMX
2423 BFD_RELOC_PPC_EMB_SDA21
2424 ENUMX
2425 BFD_RELOC_PPC_EMB_MRKREF
2426 ENUMX
2427 BFD_RELOC_PPC_EMB_RELSEC16
2428 ENUMX
2429 BFD_RELOC_PPC_EMB_RELST_LO
2430 ENUMX
2431 BFD_RELOC_PPC_EMB_RELST_HI
2432 ENUMX
2433 BFD_RELOC_PPC_EMB_RELST_HA
2434 ENUMX
2435 BFD_RELOC_PPC_EMB_BIT_FLD
2436 ENUMX
2437 BFD_RELOC_PPC_EMB_RELSDA
2438 ENUMX
2439 BFD_RELOC_PPC64_HIGHER
2440 ENUMX
2441 BFD_RELOC_PPC64_HIGHER_S
2442 ENUMX
2443 BFD_RELOC_PPC64_HIGHEST
2444 ENUMX
2445 BFD_RELOC_PPC64_HIGHEST_S
2446 ENUMX
2447 BFD_RELOC_PPC64_TOC16_LO
2448 ENUMX
2449 BFD_RELOC_PPC64_TOC16_HI
2450 ENUMX
2451 BFD_RELOC_PPC64_TOC16_HA
2452 ENUMX
2453 BFD_RELOC_PPC64_TOC
2454 ENUMX
2455 BFD_RELOC_PPC64_PLTGOT16
2456 ENUMX
2457 BFD_RELOC_PPC64_PLTGOT16_LO
2458 ENUMX
2459 BFD_RELOC_PPC64_PLTGOT16_HI
2460 ENUMX
2461 BFD_RELOC_PPC64_PLTGOT16_HA
2462 ENUMX
2463 BFD_RELOC_PPC64_ADDR16_DS
2464 ENUMX
2465 BFD_RELOC_PPC64_ADDR16_LO_DS
2466 ENUMX
2467 BFD_RELOC_PPC64_GOT16_DS
2468 ENUMX
2469 BFD_RELOC_PPC64_GOT16_LO_DS
2470 ENUMX
2471 BFD_RELOC_PPC64_PLT16_LO_DS
2472 ENUMX
2473 BFD_RELOC_PPC64_SECTOFF_DS
2474 ENUMX
2475 BFD_RELOC_PPC64_SECTOFF_LO_DS
2476 ENUMX
2477 BFD_RELOC_PPC64_TOC16_DS
2478 ENUMX
2479 BFD_RELOC_PPC64_TOC16_LO_DS
2480 ENUMX
2481 BFD_RELOC_PPC64_PLTGOT16_DS
2482 ENUMX
2483 BFD_RELOC_PPC64_PLTGOT16_LO_DS
2484 ENUMDOC
2485 Power(rs6000) and PowerPC relocations.
2486
2487 ENUM
2488 BFD_RELOC_PPC_TLS
2489 ENUMX
2490 BFD_RELOC_PPC_DTPMOD
2491 ENUMX
2492 BFD_RELOC_PPC_TPREL16
2493 ENUMX
2494 BFD_RELOC_PPC_TPREL16_LO
2495 ENUMX
2496 BFD_RELOC_PPC_TPREL16_HI
2497 ENUMX
2498 BFD_RELOC_PPC_TPREL16_HA
2499 ENUMX
2500 BFD_RELOC_PPC_TPREL
2501 ENUMX
2502 BFD_RELOC_PPC_DTPREL16
2503 ENUMX
2504 BFD_RELOC_PPC_DTPREL16_LO
2505 ENUMX
2506 BFD_RELOC_PPC_DTPREL16_HI
2507 ENUMX
2508 BFD_RELOC_PPC_DTPREL16_HA
2509 ENUMX
2510 BFD_RELOC_PPC_DTPREL
2511 ENUMX
2512 BFD_RELOC_PPC_GOT_TLSGD16
2513 ENUMX
2514 BFD_RELOC_PPC_GOT_TLSGD16_LO
2515 ENUMX
2516 BFD_RELOC_PPC_GOT_TLSGD16_HI
2517 ENUMX
2518 BFD_RELOC_PPC_GOT_TLSGD16_HA
2519 ENUMX
2520 BFD_RELOC_PPC_GOT_TLSLD16
2521 ENUMX
2522 BFD_RELOC_PPC_GOT_TLSLD16_LO
2523 ENUMX
2524 BFD_RELOC_PPC_GOT_TLSLD16_HI
2525 ENUMX
2526 BFD_RELOC_PPC_GOT_TLSLD16_HA
2527 ENUMX
2528 BFD_RELOC_PPC_GOT_TPREL16
2529 ENUMX
2530 BFD_RELOC_PPC_GOT_TPREL16_LO
2531 ENUMX
2532 BFD_RELOC_PPC_GOT_TPREL16_HI
2533 ENUMX
2534 BFD_RELOC_PPC_GOT_TPREL16_HA
2535 ENUMX
2536 BFD_RELOC_PPC_GOT_DTPREL16
2537 ENUMX
2538 BFD_RELOC_PPC_GOT_DTPREL16_LO
2539 ENUMX
2540 BFD_RELOC_PPC_GOT_DTPREL16_HI
2541 ENUMX
2542 BFD_RELOC_PPC_GOT_DTPREL16_HA
2543 ENUMX
2544 BFD_RELOC_PPC64_TPREL16_DS
2545 ENUMX
2546 BFD_RELOC_PPC64_TPREL16_LO_DS
2547 ENUMX
2548 BFD_RELOC_PPC64_TPREL16_HIGHER
2549 ENUMX
2550 BFD_RELOC_PPC64_TPREL16_HIGHERA
2551 ENUMX
2552 BFD_RELOC_PPC64_TPREL16_HIGHEST
2553 ENUMX
2554 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2555 ENUMX
2556 BFD_RELOC_PPC64_DTPREL16_DS
2557 ENUMX
2558 BFD_RELOC_PPC64_DTPREL16_LO_DS
2559 ENUMX
2560 BFD_RELOC_PPC64_DTPREL16_HIGHER
2561 ENUMX
2562 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2563 ENUMX
2564 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2565 ENUMX
2566 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2567 ENUMDOC
2568 PowerPC and PowerPC64 thread-local storage relocations.
2569
2570 ENUM
2571 BFD_RELOC_I370_D12
2572 ENUMDOC
2573 IBM 370/390 relocations
2574
2575 ENUM
2576 BFD_RELOC_CTOR
2577 ENUMDOC
2578 The type of reloc used to build a constructor table - at the moment
2579 probably a 32 bit wide absolute relocation, but the target can choose.
2580 It generally does map to one of the other relocation types.
2581
2582 ENUM
2583 BFD_RELOC_ARM_PCREL_BRANCH
2584 ENUMDOC
2585 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2586 not stored in the instruction.
2587 ENUM
2588 BFD_RELOC_ARM_PCREL_BLX
2589 ENUMDOC
2590 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2591 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2592 field in the instruction.
2593 ENUM
2594 BFD_RELOC_THUMB_PCREL_BLX
2595 ENUMDOC
2596 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2597 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2598 field in the instruction.
2599 ENUM
2600 BFD_RELOC_ARM_IMMEDIATE
2601 ENUMX
2602 BFD_RELOC_ARM_ADRL_IMMEDIATE
2603 ENUMX
2604 BFD_RELOC_ARM_OFFSET_IMM
2605 ENUMX
2606 BFD_RELOC_ARM_SHIFT_IMM
2607 ENUMX
2608 BFD_RELOC_ARM_SMI
2609 ENUMX
2610 BFD_RELOC_ARM_SWI
2611 ENUMX
2612 BFD_RELOC_ARM_MULTI
2613 ENUMX
2614 BFD_RELOC_ARM_CP_OFF_IMM
2615 ENUMX
2616 BFD_RELOC_ARM_CP_OFF_IMM_S2
2617 ENUMX
2618 BFD_RELOC_ARM_ADR_IMM
2619 ENUMX
2620 BFD_RELOC_ARM_LDR_IMM
2621 ENUMX
2622 BFD_RELOC_ARM_LITERAL
2623 ENUMX
2624 BFD_RELOC_ARM_IN_POOL
2625 ENUMX
2626 BFD_RELOC_ARM_OFFSET_IMM8
2627 ENUMX
2628 BFD_RELOC_ARM_HWLITERAL
2629 ENUMX
2630 BFD_RELOC_ARM_THUMB_ADD
2631 ENUMX
2632 BFD_RELOC_ARM_THUMB_IMM
2633 ENUMX
2634 BFD_RELOC_ARM_THUMB_SHIFT
2635 ENUMX
2636 BFD_RELOC_ARM_THUMB_OFFSET
2637 ENUMX
2638 BFD_RELOC_ARM_GOT12
2639 ENUMX
2640 BFD_RELOC_ARM_GOT32
2641 ENUMX
2642 BFD_RELOC_ARM_JUMP_SLOT
2643 ENUMX
2644 BFD_RELOC_ARM_COPY
2645 ENUMX
2646 BFD_RELOC_ARM_GLOB_DAT
2647 ENUMX
2648 BFD_RELOC_ARM_PLT32
2649 ENUMX
2650 BFD_RELOC_ARM_RELATIVE
2651 ENUMX
2652 BFD_RELOC_ARM_GOTOFF
2653 ENUMX
2654 BFD_RELOC_ARM_GOTPC
2655 ENUMDOC
2656 These relocs are only used within the ARM assembler. They are not
2657 (at present) written to any object files.
2658 ENUM
2659 BFD_RELOC_ARM_TARGET1
2660 ENUMDOC
2661 Pc-relative or absolute relocation depending on target. Used for
2662 entries in .init_array sections.
2663 ENUM
2664 BFD_RELOC_ARM_ROSEGREL32
2665 ENUMDOC
2666 Read-only segment base relative address.
2667 ENUM
2668 BFD_RELOC_ARM_SBREL32
2669 ENUMDOC
2670 Data segment base relative address.
2671 ENUM
2672 BFD_RELOC_ARM_TARGET2
2673 ENUMDOC
2674 This reloc is used for References to RTTI dta from exception handling
2675 tables. The actual definition depends on the target. It may be a
2676 pc-relative or some form of GOT-indirect relocation.
2677 ENUM
2678 BFD_RELOC_ARM_PREL31
2679 ENUMDOC
2680 31-bit PC relative address.
2681
2682 ENUM
2683 BFD_RELOC_SH_PCDISP8BY2
2684 ENUMX
2685 BFD_RELOC_SH_PCDISP12BY2
2686 ENUMX
2687 BFD_RELOC_SH_IMM3
2688 ENUMX
2689 BFD_RELOC_SH_IMM3U
2690 ENUMX
2691 BFD_RELOC_SH_DISP12
2692 ENUMX
2693 BFD_RELOC_SH_DISP12BY2
2694 ENUMX
2695 BFD_RELOC_SH_DISP12BY4
2696 ENUMX
2697 BFD_RELOC_SH_DISP12BY8
2698 ENUMX
2699 BFD_RELOC_SH_DISP20
2700 ENUMX
2701 BFD_RELOC_SH_DISP20BY8
2702 ENUMX
2703 BFD_RELOC_SH_IMM4
2704 ENUMX
2705 BFD_RELOC_SH_IMM4BY2
2706 ENUMX
2707 BFD_RELOC_SH_IMM4BY4
2708 ENUMX
2709 BFD_RELOC_SH_IMM8
2710 ENUMX
2711 BFD_RELOC_SH_IMM8BY2
2712 ENUMX
2713 BFD_RELOC_SH_IMM8BY4
2714 ENUMX
2715 BFD_RELOC_SH_PCRELIMM8BY2
2716 ENUMX
2717 BFD_RELOC_SH_PCRELIMM8BY4
2718 ENUMX
2719 BFD_RELOC_SH_SWITCH16
2720 ENUMX
2721 BFD_RELOC_SH_SWITCH32
2722 ENUMX
2723 BFD_RELOC_SH_USES
2724 ENUMX
2725 BFD_RELOC_SH_COUNT
2726 ENUMX
2727 BFD_RELOC_SH_ALIGN
2728 ENUMX
2729 BFD_RELOC_SH_CODE
2730 ENUMX
2731 BFD_RELOC_SH_DATA
2732 ENUMX
2733 BFD_RELOC_SH_LABEL
2734 ENUMX
2735 BFD_RELOC_SH_LOOP_START
2736 ENUMX
2737 BFD_RELOC_SH_LOOP_END
2738 ENUMX
2739 BFD_RELOC_SH_COPY
2740 ENUMX
2741 BFD_RELOC_SH_GLOB_DAT
2742 ENUMX
2743 BFD_RELOC_SH_JMP_SLOT
2744 ENUMX
2745 BFD_RELOC_SH_RELATIVE
2746 ENUMX
2747 BFD_RELOC_SH_GOTPC
2748 ENUMX
2749 BFD_RELOC_SH_GOT_LOW16
2750 ENUMX
2751 BFD_RELOC_SH_GOT_MEDLOW16
2752 ENUMX
2753 BFD_RELOC_SH_GOT_MEDHI16
2754 ENUMX
2755 BFD_RELOC_SH_GOT_HI16
2756 ENUMX
2757 BFD_RELOC_SH_GOTPLT_LOW16
2758 ENUMX
2759 BFD_RELOC_SH_GOTPLT_MEDLOW16
2760 ENUMX
2761 BFD_RELOC_SH_GOTPLT_MEDHI16
2762 ENUMX
2763 BFD_RELOC_SH_GOTPLT_HI16
2764 ENUMX
2765 BFD_RELOC_SH_PLT_LOW16
2766 ENUMX
2767 BFD_RELOC_SH_PLT_MEDLOW16
2768 ENUMX
2769 BFD_RELOC_SH_PLT_MEDHI16
2770 ENUMX
2771 BFD_RELOC_SH_PLT_HI16
2772 ENUMX
2773 BFD_RELOC_SH_GOTOFF_LOW16
2774 ENUMX
2775 BFD_RELOC_SH_GOTOFF_MEDLOW16
2776 ENUMX
2777 BFD_RELOC_SH_GOTOFF_MEDHI16
2778 ENUMX
2779 BFD_RELOC_SH_GOTOFF_HI16
2780 ENUMX
2781 BFD_RELOC_SH_GOTPC_LOW16
2782 ENUMX
2783 BFD_RELOC_SH_GOTPC_MEDLOW16
2784 ENUMX
2785 BFD_RELOC_SH_GOTPC_MEDHI16
2786 ENUMX
2787 BFD_RELOC_SH_GOTPC_HI16
2788 ENUMX
2789 BFD_RELOC_SH_COPY64
2790 ENUMX
2791 BFD_RELOC_SH_GLOB_DAT64
2792 ENUMX
2793 BFD_RELOC_SH_JMP_SLOT64
2794 ENUMX
2795 BFD_RELOC_SH_RELATIVE64
2796 ENUMX
2797 BFD_RELOC_SH_GOT10BY4
2798 ENUMX
2799 BFD_RELOC_SH_GOT10BY8
2800 ENUMX
2801 BFD_RELOC_SH_GOTPLT10BY4
2802 ENUMX
2803 BFD_RELOC_SH_GOTPLT10BY8
2804 ENUMX
2805 BFD_RELOC_SH_GOTPLT32
2806 ENUMX
2807 BFD_RELOC_SH_SHMEDIA_CODE
2808 ENUMX
2809 BFD_RELOC_SH_IMMU5
2810 ENUMX
2811 BFD_RELOC_SH_IMMS6
2812 ENUMX
2813 BFD_RELOC_SH_IMMS6BY32
2814 ENUMX
2815 BFD_RELOC_SH_IMMU6
2816 ENUMX
2817 BFD_RELOC_SH_IMMS10
2818 ENUMX
2819 BFD_RELOC_SH_IMMS10BY2
2820 ENUMX
2821 BFD_RELOC_SH_IMMS10BY4
2822 ENUMX
2823 BFD_RELOC_SH_IMMS10BY8
2824 ENUMX
2825 BFD_RELOC_SH_IMMS16
2826 ENUMX
2827 BFD_RELOC_SH_IMMU16
2828 ENUMX
2829 BFD_RELOC_SH_IMM_LOW16
2830 ENUMX
2831 BFD_RELOC_SH_IMM_LOW16_PCREL
2832 ENUMX
2833 BFD_RELOC_SH_IMM_MEDLOW16
2834 ENUMX
2835 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2836 ENUMX
2837 BFD_RELOC_SH_IMM_MEDHI16
2838 ENUMX
2839 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2840 ENUMX
2841 BFD_RELOC_SH_IMM_HI16
2842 ENUMX
2843 BFD_RELOC_SH_IMM_HI16_PCREL
2844 ENUMX
2845 BFD_RELOC_SH_PT_16
2846 ENUMX
2847 BFD_RELOC_SH_TLS_GD_32
2848 ENUMX
2849 BFD_RELOC_SH_TLS_LD_32
2850 ENUMX
2851 BFD_RELOC_SH_TLS_LDO_32
2852 ENUMX
2853 BFD_RELOC_SH_TLS_IE_32
2854 ENUMX
2855 BFD_RELOC_SH_TLS_LE_32
2856 ENUMX
2857 BFD_RELOC_SH_TLS_DTPMOD32
2858 ENUMX
2859 BFD_RELOC_SH_TLS_DTPOFF32
2860 ENUMX
2861 BFD_RELOC_SH_TLS_TPOFF32
2862 ENUMDOC
2863 Renesas / SuperH SH relocs. Not all of these appear in object files.
2864
2865 ENUM
2866 BFD_RELOC_THUMB_PCREL_BRANCH9
2867 ENUMX
2868 BFD_RELOC_THUMB_PCREL_BRANCH12
2869 ENUMX
2870 BFD_RELOC_THUMB_PCREL_BRANCH23
2871 ENUMDOC
2872 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2873 be zero and is not stored in the instruction.
2874
2875 ENUM
2876 BFD_RELOC_ARC_B22_PCREL
2877 ENUMDOC
2878 ARC Cores relocs.
2879 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2880 not stored in the instruction. The high 20 bits are installed in bits 26
2881 through 7 of the instruction.
2882 ENUM
2883 BFD_RELOC_ARC_B26
2884 ENUMDOC
2885 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2886 stored in the instruction. The high 24 bits are installed in bits 23
2887 through 0.
2888
2889 ENUM
2890 BFD_RELOC_D10V_10_PCREL_R
2891 ENUMDOC
2892 Mitsubishi D10V relocs.
2893 This is a 10-bit reloc with the right 2 bits
2894 assumed to be 0.
2895 ENUM
2896 BFD_RELOC_D10V_10_PCREL_L
2897 ENUMDOC
2898 Mitsubishi D10V relocs.
2899 This is a 10-bit reloc with the right 2 bits
2900 assumed to be 0. This is the same as the previous reloc
2901 except it is in the left container, i.e.,
2902 shifted left 15 bits.
2903 ENUM
2904 BFD_RELOC_D10V_18
2905 ENUMDOC
2906 This is an 18-bit reloc with the right 2 bits
2907 assumed to be 0.
2908 ENUM
2909 BFD_RELOC_D10V_18_PCREL
2910 ENUMDOC
2911 This is an 18-bit reloc with the right 2 bits
2912 assumed to be 0.
2913
2914 ENUM
2915 BFD_RELOC_D30V_6
2916 ENUMDOC
2917 Mitsubishi D30V relocs.
2918 This is a 6-bit absolute reloc.
2919 ENUM
2920 BFD_RELOC_D30V_9_PCREL
2921 ENUMDOC
2922 This is a 6-bit pc-relative reloc with
2923 the right 3 bits assumed to be 0.
2924 ENUM
2925 BFD_RELOC_D30V_9_PCREL_R
2926 ENUMDOC
2927 This is a 6-bit pc-relative reloc with
2928 the right 3 bits assumed to be 0. Same
2929 as the previous reloc but on the right side
2930 of the container.
2931 ENUM
2932 BFD_RELOC_D30V_15
2933 ENUMDOC
2934 This is a 12-bit absolute reloc with the
2935 right 3 bitsassumed to be 0.
2936 ENUM
2937 BFD_RELOC_D30V_15_PCREL
2938 ENUMDOC
2939 This is a 12-bit pc-relative reloc with
2940 the right 3 bits assumed to be 0.
2941 ENUM
2942 BFD_RELOC_D30V_15_PCREL_R
2943 ENUMDOC
2944 This is a 12-bit pc-relative reloc with
2945 the right 3 bits assumed to be 0. Same
2946 as the previous reloc but on the right side
2947 of the container.
2948 ENUM
2949 BFD_RELOC_D30V_21
2950 ENUMDOC
2951 This is an 18-bit absolute reloc with
2952 the right 3 bits assumed to be 0.
2953 ENUM
2954 BFD_RELOC_D30V_21_PCREL
2955 ENUMDOC
2956 This is an 18-bit pc-relative reloc with
2957 the right 3 bits assumed to be 0.
2958 ENUM
2959 BFD_RELOC_D30V_21_PCREL_R
2960 ENUMDOC
2961 This is an 18-bit pc-relative reloc with
2962 the right 3 bits assumed to be 0. Same
2963 as the previous reloc but on the right side
2964 of the container.
2965 ENUM
2966 BFD_RELOC_D30V_32
2967 ENUMDOC
2968 This is a 32-bit absolute reloc.
2969 ENUM
2970 BFD_RELOC_D30V_32_PCREL
2971 ENUMDOC
2972 This is a 32-bit pc-relative reloc.
2973
2974 ENUM
2975 BFD_RELOC_DLX_HI16_S
2976 ENUMDOC
2977 DLX relocs
2978 ENUM
2979 BFD_RELOC_DLX_LO16
2980 ENUMDOC
2981 DLX relocs
2982 ENUM
2983 BFD_RELOC_DLX_JMP26
2984 ENUMDOC
2985 DLX relocs
2986
2987 ENUM
2988 BFD_RELOC_M32R_24
2989 ENUMDOC
2990 Renesas M32R (formerly Mitsubishi M32R) relocs.
2991 This is a 24 bit absolute address.
2992 ENUM
2993 BFD_RELOC_M32R_10_PCREL
2994 ENUMDOC
2995 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2996 ENUM
2997 BFD_RELOC_M32R_18_PCREL
2998 ENUMDOC
2999 This is an 18-bit reloc with the right 2 bits assumed to be 0.
3000 ENUM
3001 BFD_RELOC_M32R_26_PCREL
3002 ENUMDOC
3003 This is a 26-bit reloc with the right 2 bits assumed to be 0.
3004 ENUM
3005 BFD_RELOC_M32R_HI16_ULO
3006 ENUMDOC
3007 This is a 16-bit reloc containing the high 16 bits of an address
3008 used when the lower 16 bits are treated as unsigned.
3009 ENUM
3010 BFD_RELOC_M32R_HI16_SLO
3011 ENUMDOC
3012 This is a 16-bit reloc containing the high 16 bits of an address
3013 used when the lower 16 bits are treated as signed.
3014 ENUM
3015 BFD_RELOC_M32R_LO16
3016 ENUMDOC
3017 This is a 16-bit reloc containing the lower 16 bits of an address.
3018 ENUM
3019 BFD_RELOC_M32R_SDA16
3020 ENUMDOC
3021 This is a 16-bit reloc containing the small data area offset for use in
3022 add3, load, and store instructions.
3023 ENUM
3024 BFD_RELOC_M32R_GOT24
3025 ENUMX
3026 BFD_RELOC_M32R_26_PLTREL
3027 ENUMX
3028 BFD_RELOC_M32R_COPY
3029 ENUMX
3030 BFD_RELOC_M32R_GLOB_DAT
3031 ENUMX
3032 BFD_RELOC_M32R_JMP_SLOT
3033 ENUMX
3034 BFD_RELOC_M32R_RELATIVE
3035 ENUMX
3036 BFD_RELOC_M32R_GOTOFF
3037 ENUMX
3038 BFD_RELOC_M32R_GOTOFF_HI_ULO
3039 ENUMX
3040 BFD_RELOC_M32R_GOTOFF_HI_SLO
3041 ENUMX
3042 BFD_RELOC_M32R_GOTOFF_LO
3043 ENUMX
3044 BFD_RELOC_M32R_GOTPC24
3045 ENUMX
3046 BFD_RELOC_M32R_GOT16_HI_ULO
3047 ENUMX
3048 BFD_RELOC_M32R_GOT16_HI_SLO
3049 ENUMX
3050 BFD_RELOC_M32R_GOT16_LO
3051 ENUMX
3052 BFD_RELOC_M32R_GOTPC_HI_ULO
3053 ENUMX
3054 BFD_RELOC_M32R_GOTPC_HI_SLO
3055 ENUMX
3056 BFD_RELOC_M32R_GOTPC_LO
3057 ENUMDOC
3058 For PIC.
3059
3060
3061 ENUM
3062 BFD_RELOC_V850_9_PCREL
3063 ENUMDOC
3064 This is a 9-bit reloc
3065 ENUM
3066 BFD_RELOC_V850_22_PCREL
3067 ENUMDOC
3068 This is a 22-bit reloc
3069
3070 ENUM
3071 BFD_RELOC_V850_SDA_16_16_OFFSET
3072 ENUMDOC
3073 This is a 16 bit offset from the short data area pointer.
3074 ENUM
3075 BFD_RELOC_V850_SDA_15_16_OFFSET
3076 ENUMDOC
3077 This is a 16 bit offset (of which only 15 bits are used) from the
3078 short data area pointer.
3079 ENUM
3080 BFD_RELOC_V850_ZDA_16_16_OFFSET
3081 ENUMDOC
3082 This is a 16 bit offset from the zero data area pointer.
3083 ENUM
3084 BFD_RELOC_V850_ZDA_15_16_OFFSET
3085 ENUMDOC
3086 This is a 16 bit offset (of which only 15 bits are used) from the
3087 zero data area pointer.
3088 ENUM
3089 BFD_RELOC_V850_TDA_6_8_OFFSET
3090 ENUMDOC
3091 This is an 8 bit offset (of which only 6 bits are used) from the
3092 tiny data area pointer.
3093 ENUM
3094 BFD_RELOC_V850_TDA_7_8_OFFSET
3095 ENUMDOC
3096 This is an 8bit offset (of which only 7 bits are used) from the tiny
3097 data area pointer.
3098 ENUM
3099 BFD_RELOC_V850_TDA_7_7_OFFSET
3100 ENUMDOC
3101 This is a 7 bit offset from the tiny data area pointer.
3102 ENUM
3103 BFD_RELOC_V850_TDA_16_16_OFFSET
3104 ENUMDOC
3105 This is a 16 bit offset from the tiny data area pointer.
3106 COMMENT
3107 ENUM
3108 BFD_RELOC_V850_TDA_4_5_OFFSET
3109 ENUMDOC
3110 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3111 data area pointer.
3112 ENUM
3113 BFD_RELOC_V850_TDA_4_4_OFFSET
3114 ENUMDOC
3115 This is a 4 bit offset from the tiny data area pointer.
3116 ENUM
3117 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3118 ENUMDOC
3119 This is a 16 bit offset from the short data area pointer, with the
3120 bits placed non-contiguously in the instruction.
3121 ENUM
3122 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3123 ENUMDOC
3124 This is a 16 bit offset from the zero data area pointer, with the
3125 bits placed non-contiguously in the instruction.
3126 ENUM
3127 BFD_RELOC_V850_CALLT_6_7_OFFSET
3128 ENUMDOC
3129 This is a 6 bit offset from the call table base pointer.
3130 ENUM
3131 BFD_RELOC_V850_CALLT_16_16_OFFSET
3132 ENUMDOC
3133 This is a 16 bit offset from the call table base pointer.
3134 ENUM
3135 BFD_RELOC_V850_LONGCALL
3136 ENUMDOC
3137 Used for relaxing indirect function calls.
3138 ENUM
3139 BFD_RELOC_V850_LONGJUMP
3140 ENUMDOC
3141 Used for relaxing indirect jumps.
3142 ENUM
3143 BFD_RELOC_V850_ALIGN
3144 ENUMDOC
3145 Used to maintain alignment whilst relaxing.
3146 ENUM
3147 BFD_RELOC_V850_LO16_SPLIT_OFFSET
3148 ENUMDOC
3149 This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3150 instructions.
3151 ENUM
3152 BFD_RELOC_MN10300_32_PCREL
3153 ENUMDOC
3154 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3155 instruction.
3156 ENUM
3157 BFD_RELOC_MN10300_16_PCREL
3158 ENUMDOC
3159 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3160 instruction.
3161
3162 ENUM
3163 BFD_RELOC_TIC30_LDP
3164 ENUMDOC
3165 This is a 8bit DP reloc for the tms320c30, where the most
3166 significant 8 bits of a 24 bit word are placed into the least
3167 significant 8 bits of the opcode.
3168
3169 ENUM
3170 BFD_RELOC_TIC54X_PARTLS7
3171 ENUMDOC
3172 This is a 7bit reloc for the tms320c54x, where the least
3173 significant 7 bits of a 16 bit word are placed into the least
3174 significant 7 bits of the opcode.
3175
3176 ENUM
3177 BFD_RELOC_TIC54X_PARTMS9
3178 ENUMDOC
3179 This is a 9bit DP reloc for the tms320c54x, where the most
3180 significant 9 bits of a 16 bit word are placed into the least
3181 significant 9 bits of the opcode.
3182
3183 ENUM
3184 BFD_RELOC_TIC54X_23
3185 ENUMDOC
3186 This is an extended address 23-bit reloc for the tms320c54x.
3187
3188 ENUM
3189 BFD_RELOC_TIC54X_16_OF_23
3190 ENUMDOC
3191 This is a 16-bit reloc for the tms320c54x, where the least
3192 significant 16 bits of a 23-bit extended address are placed into
3193 the opcode.
3194
3195 ENUM
3196 BFD_RELOC_TIC54X_MS7_OF_23
3197 ENUMDOC
3198 This is a reloc for the tms320c54x, where the most
3199 significant 7 bits of a 23-bit extended address are placed into
3200 the opcode.
3201
3202 ENUM
3203 BFD_RELOC_FR30_48
3204 ENUMDOC
3205 This is a 48 bit reloc for the FR30 that stores 32 bits.
3206 ENUM
3207 BFD_RELOC_FR30_20
3208 ENUMDOC
3209 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3210 two sections.
3211 ENUM
3212 BFD_RELOC_FR30_6_IN_4
3213 ENUMDOC
3214 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3215 4 bits.
3216 ENUM
3217 BFD_RELOC_FR30_8_IN_8
3218 ENUMDOC
3219 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3220 into 8 bits.
3221 ENUM
3222 BFD_RELOC_FR30_9_IN_8
3223 ENUMDOC
3224 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3225 into 8 bits.
3226 ENUM
3227 BFD_RELOC_FR30_10_IN_8
3228 ENUMDOC
3229 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3230 into 8 bits.
3231 ENUM
3232 BFD_RELOC_FR30_9_PCREL
3233 ENUMDOC
3234 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3235 short offset into 8 bits.
3236 ENUM
3237 BFD_RELOC_FR30_12_PCREL
3238 ENUMDOC
3239 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3240 short offset into 11 bits.
3241
3242 ENUM
3243 BFD_RELOC_MCORE_PCREL_IMM8BY4
3244 ENUMX
3245 BFD_RELOC_MCORE_PCREL_IMM11BY2
3246 ENUMX
3247 BFD_RELOC_MCORE_PCREL_IMM4BY2
3248 ENUMX
3249 BFD_RELOC_MCORE_PCREL_32
3250 ENUMX
3251 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3252 ENUMX
3253 BFD_RELOC_MCORE_RVA
3254 ENUMDOC
3255 Motorola Mcore relocations.
3256
3257 ENUM
3258 BFD_RELOC_MMIX_GETA
3259 ENUMX
3260 BFD_RELOC_MMIX_GETA_1
3261 ENUMX
3262 BFD_RELOC_MMIX_GETA_2
3263 ENUMX
3264 BFD_RELOC_MMIX_GETA_3
3265 ENUMDOC
3266 These are relocations for the GETA instruction.
3267 ENUM
3268 BFD_RELOC_MMIX_CBRANCH
3269 ENUMX
3270 BFD_RELOC_MMIX_CBRANCH_J
3271 ENUMX
3272 BFD_RELOC_MMIX_CBRANCH_1
3273 ENUMX
3274 BFD_RELOC_MMIX_CBRANCH_2
3275 ENUMX
3276 BFD_RELOC_MMIX_CBRANCH_3
3277 ENUMDOC
3278 These are relocations for a conditional branch instruction.
3279 ENUM
3280 BFD_RELOC_MMIX_PUSHJ
3281 ENUMX
3282 BFD_RELOC_MMIX_PUSHJ_1
3283 ENUMX
3284 BFD_RELOC_MMIX_PUSHJ_2
3285 ENUMX
3286 BFD_RELOC_MMIX_PUSHJ_3
3287 ENUMX
3288 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3289 ENUMDOC
3290 These are relocations for the PUSHJ instruction.
3291 ENUM
3292 BFD_RELOC_MMIX_JMP
3293 ENUMX
3294 BFD_RELOC_MMIX_JMP_1
3295 ENUMX
3296 BFD_RELOC_MMIX_JMP_2
3297 ENUMX
3298 BFD_RELOC_MMIX_JMP_3
3299 ENUMDOC
3300 These are relocations for the JMP instruction.
3301 ENUM
3302 BFD_RELOC_MMIX_ADDR19
3303 ENUMDOC
3304 This is a relocation for a relative address as in a GETA instruction or
3305 a branch.
3306 ENUM
3307 BFD_RELOC_MMIX_ADDR27
3308 ENUMDOC
3309 This is a relocation for a relative address as in a JMP instruction.
3310 ENUM
3311 BFD_RELOC_MMIX_REG_OR_BYTE
3312 ENUMDOC
3313 This is a relocation for an instruction field that may be a general
3314 register or a value 0..255.
3315 ENUM
3316 BFD_RELOC_MMIX_REG
3317 ENUMDOC
3318 This is a relocation for an instruction field that may be a general
3319 register.
3320 ENUM
3321 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3322 ENUMDOC
3323 This is a relocation for two instruction fields holding a register and
3324 an offset, the equivalent of the relocation.
3325 ENUM
3326 BFD_RELOC_MMIX_LOCAL
3327 ENUMDOC
3328 This relocation is an assertion that the expression is not allocated as
3329 a global register. It does not modify contents.
3330
3331 ENUM
3332 BFD_RELOC_AVR_7_PCREL
3333 ENUMDOC
3334 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3335 short offset into 7 bits.
3336 ENUM
3337 BFD_RELOC_AVR_13_PCREL
3338 ENUMDOC
3339 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3340 short offset into 12 bits.
3341 ENUM
3342 BFD_RELOC_AVR_16_PM
3343 ENUMDOC
3344 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3345 program memory address) into 16 bits.
3346 ENUM
3347 BFD_RELOC_AVR_LO8_LDI
3348 ENUMDOC
3349 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3350 data memory address) into 8 bit immediate value of LDI insn.
3351 ENUM
3352 BFD_RELOC_AVR_HI8_LDI
3353 ENUMDOC
3354 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3355 of data memory address) into 8 bit immediate value of LDI insn.
3356 ENUM
3357 BFD_RELOC_AVR_HH8_LDI
3358 ENUMDOC
3359 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3360 of program memory address) into 8 bit immediate value of LDI insn.
3361 ENUM
3362 BFD_RELOC_AVR_LO8_LDI_NEG
3363 ENUMDOC
3364 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3365 (usually data memory address) into 8 bit immediate value of SUBI insn.
3366 ENUM
3367 BFD_RELOC_AVR_HI8_LDI_NEG
3368 ENUMDOC
3369 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3370 (high 8 bit of data memory address) into 8 bit immediate value of
3371 SUBI insn.
3372 ENUM
3373 BFD_RELOC_AVR_HH8_LDI_NEG
3374 ENUMDOC
3375 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3376 (most high 8 bit of program memory address) into 8 bit immediate value
3377 of LDI or SUBI insn.
3378 ENUM
3379 BFD_RELOC_AVR_LO8_LDI_PM
3380 ENUMDOC
3381 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3382 command address) into 8 bit immediate value of LDI insn.
3383 ENUM
3384 BFD_RELOC_AVR_HI8_LDI_PM
3385 ENUMDOC
3386 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3387 of command address) into 8 bit immediate value of LDI insn.
3388 ENUM
3389 BFD_RELOC_AVR_HH8_LDI_PM
3390 ENUMDOC
3391 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3392 of command address) into 8 bit immediate value of LDI insn.
3393 ENUM
3394 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3395 ENUMDOC
3396 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3397 (usually command address) into 8 bit immediate value of SUBI insn.
3398 ENUM
3399 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3400 ENUMDOC
3401 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3402 (high 8 bit of 16 bit command address) into 8 bit immediate value
3403 of SUBI insn.
3404 ENUM
3405 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3406 ENUMDOC
3407 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3408 (high 6 bit of 22 bit command address) into 8 bit immediate
3409 value of SUBI insn.
3410 ENUM
3411 BFD_RELOC_AVR_CALL
3412 ENUMDOC
3413 This is a 32 bit reloc for the AVR that stores 23 bit value
3414 into 22 bits.
3415 ENUM
3416 BFD_RELOC_AVR_LDI
3417 ENUMDOC
3418 This is a 16 bit reloc for the AVR that stores all needed bits
3419 for absolute addressing with ldi with overflow check to linktime
3420 ENUM
3421 BFD_RELOC_AVR_6
3422 ENUMDOC
3423 This is a 6 bit reloc for the AVR that stores offset for ldd/std
3424 instructions
3425 ENUM
3426 BFD_RELOC_AVR_6_ADIW
3427 ENUMDOC
3428 This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3429 instructions
3430
3431 ENUM
3432 BFD_RELOC_390_12
3433 ENUMDOC
3434 Direct 12 bit.
3435 ENUM
3436 BFD_RELOC_390_GOT12
3437 ENUMDOC
3438 12 bit GOT offset.
3439 ENUM
3440 BFD_RELOC_390_PLT32
3441 ENUMDOC
3442 32 bit PC relative PLT address.
3443 ENUM
3444 BFD_RELOC_390_COPY
3445 ENUMDOC
3446 Copy symbol at runtime.
3447 ENUM
3448 BFD_RELOC_390_GLOB_DAT
3449 ENUMDOC
3450 Create GOT entry.
3451 ENUM
3452 BFD_RELOC_390_JMP_SLOT
3453 ENUMDOC
3454 Create PLT entry.
3455 ENUM
3456 BFD_RELOC_390_RELATIVE
3457 ENUMDOC
3458 Adjust by program base.
3459 ENUM
3460 BFD_RELOC_390_GOTPC
3461 ENUMDOC
3462 32 bit PC relative offset to GOT.
3463 ENUM
3464 BFD_RELOC_390_GOT16
3465 ENUMDOC
3466 16 bit GOT offset.
3467 ENUM
3468 BFD_RELOC_390_PC16DBL
3469 ENUMDOC
3470 PC relative 16 bit shifted by 1.
3471 ENUM
3472 BFD_RELOC_390_PLT16DBL
3473 ENUMDOC
3474 16 bit PC rel. PLT shifted by 1.
3475 ENUM
3476 BFD_RELOC_390_PC32DBL
3477 ENUMDOC
3478 PC relative 32 bit shifted by 1.
3479 ENUM
3480 BFD_RELOC_390_PLT32DBL
3481 ENUMDOC
3482 32 bit PC rel. PLT shifted by 1.
3483 ENUM
3484 BFD_RELOC_390_GOTPCDBL
3485 ENUMDOC
3486 32 bit PC rel. GOT shifted by 1.
3487 ENUM
3488 BFD_RELOC_390_GOT64
3489 ENUMDOC
3490 64 bit GOT offset.
3491 ENUM
3492 BFD_RELOC_390_PLT64
3493 ENUMDOC
3494 64 bit PC relative PLT address.
3495 ENUM
3496 BFD_RELOC_390_GOTENT
3497 ENUMDOC
3498 32 bit rel. offset to GOT entry.
3499 ENUM
3500 BFD_RELOC_390_GOTOFF64
3501 ENUMDOC
3502 64 bit offset to GOT.
3503 ENUM
3504 BFD_RELOC_390_GOTPLT12
3505 ENUMDOC
3506 12-bit offset to symbol-entry within GOT, with PLT handling.
3507 ENUM
3508 BFD_RELOC_390_GOTPLT16
3509 ENUMDOC
3510 16-bit offset to symbol-entry within GOT, with PLT handling.
3511 ENUM
3512 BFD_RELOC_390_GOTPLT32
3513 ENUMDOC
3514 32-bit offset to symbol-entry within GOT, with PLT handling.
3515 ENUM
3516 BFD_RELOC_390_GOTPLT64
3517 ENUMDOC
3518 64-bit offset to symbol-entry within GOT, with PLT handling.
3519 ENUM
3520 BFD_RELOC_390_GOTPLTENT
3521 ENUMDOC
3522 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3523 ENUM
3524 BFD_RELOC_390_PLTOFF16
3525 ENUMDOC
3526 16-bit rel. offset from the GOT to a PLT entry.
3527 ENUM
3528 BFD_RELOC_390_PLTOFF32
3529 ENUMDOC
3530 32-bit rel. offset from the GOT to a PLT entry.
3531 ENUM
3532 BFD_RELOC_390_PLTOFF64
3533 ENUMDOC
3534 64-bit rel. offset from the GOT to a PLT entry.
3535
3536 ENUM
3537 BFD_RELOC_390_TLS_LOAD
3538 ENUMX
3539 BFD_RELOC_390_TLS_GDCALL
3540 ENUMX
3541 BFD_RELOC_390_TLS_LDCALL
3542 ENUMX
3543 BFD_RELOC_390_TLS_GD32
3544 ENUMX
3545 BFD_RELOC_390_TLS_GD64
3546 ENUMX
3547 BFD_RELOC_390_TLS_GOTIE12
3548 ENUMX
3549 BFD_RELOC_390_TLS_GOTIE32
3550 ENUMX
3551 BFD_RELOC_390_TLS_GOTIE64
3552 ENUMX
3553 BFD_RELOC_390_TLS_LDM32
3554 ENUMX
3555 BFD_RELOC_390_TLS_LDM64
3556 ENUMX
3557 BFD_RELOC_390_TLS_IE32
3558 ENUMX
3559 BFD_RELOC_390_TLS_IE64
3560 ENUMX
3561 BFD_RELOC_390_TLS_IEENT
3562 ENUMX
3563 BFD_RELOC_390_TLS_LE32
3564 ENUMX
3565 BFD_RELOC_390_TLS_LE64
3566 ENUMX
3567 BFD_RELOC_390_TLS_LDO32
3568 ENUMX
3569 BFD_RELOC_390_TLS_LDO64
3570 ENUMX
3571 BFD_RELOC_390_TLS_DTPMOD
3572 ENUMX
3573 BFD_RELOC_390_TLS_DTPOFF
3574 ENUMX
3575 BFD_RELOC_390_TLS_TPOFF
3576 ENUMDOC
3577 s390 tls relocations.
3578
3579 ENUM
3580 BFD_RELOC_390_20
3581 ENUMX
3582 BFD_RELOC_390_GOT20
3583 ENUMX
3584 BFD_RELOC_390_GOTPLT20
3585 ENUMX
3586 BFD_RELOC_390_TLS_GOTIE20
3587 ENUMDOC
3588 Long displacement extension.
3589
3590 ENUM
3591 BFD_RELOC_IP2K_FR9
3592 ENUMDOC
3593 Scenix IP2K - 9-bit register number / data address
3594 ENUM
3595 BFD_RELOC_IP2K_BANK
3596 ENUMDOC
3597 Scenix IP2K - 4-bit register/data bank number
3598 ENUM
3599 BFD_RELOC_IP2K_ADDR16CJP
3600 ENUMDOC
3601 Scenix IP2K - low 13 bits of instruction word address
3602 ENUM
3603 BFD_RELOC_IP2K_PAGE3
3604 ENUMDOC
3605 Scenix IP2K - high 3 bits of instruction word address
3606 ENUM
3607 BFD_RELOC_IP2K_LO8DATA
3608 ENUMX
3609 BFD_RELOC_IP2K_HI8DATA
3610 ENUMX
3611 BFD_RELOC_IP2K_EX8DATA
3612 ENUMDOC
3613 Scenix IP2K - ext/low/high 8 bits of data address
3614 ENUM
3615 BFD_RELOC_IP2K_LO8INSN
3616 ENUMX
3617 BFD_RELOC_IP2K_HI8INSN
3618 ENUMDOC
3619 Scenix IP2K - low/high 8 bits of instruction word address
3620 ENUM
3621 BFD_RELOC_IP2K_PC_SKIP
3622 ENUMDOC
3623 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3624 ENUM
3625 BFD_RELOC_IP2K_TEXT
3626 ENUMDOC
3627 Scenix IP2K - 16 bit word address in text section.
3628 ENUM
3629 BFD_RELOC_IP2K_FR_OFFSET
3630 ENUMDOC
3631 Scenix IP2K - 7-bit sp or dp offset
3632 ENUM
3633 BFD_RELOC_VPE4KMATH_DATA
3634 ENUMX
3635 BFD_RELOC_VPE4KMATH_INSN
3636 ENUMDOC
3637 Scenix VPE4K coprocessor - data/insn-space addressing
3638
3639 ENUM
3640 BFD_RELOC_VTABLE_INHERIT
3641 ENUMX
3642 BFD_RELOC_VTABLE_ENTRY
3643 ENUMDOC
3644 These two relocations are used by the linker to determine which of
3645 the entries in a C++ virtual function table are actually used. When
3646 the --gc-sections option is given, the linker will zero out the entries
3647 that are not used, so that the code for those functions need not be
3648 included in the output.
3649
3650 VTABLE_INHERIT is a zero-space relocation used to describe to the
3651 linker the inheritance tree of a C++ virtual function table. The
3652 relocation's symbol should be the parent class' vtable, and the
3653 relocation should be located at the child vtable.
3654
3655 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3656 virtual function table entry. The reloc's symbol should refer to the
3657 table of the class mentioned in the code. Off of that base, an offset
3658 describes the entry that is being used. For Rela hosts, this offset
3659 is stored in the reloc's addend. For Rel hosts, we are forced to put
3660 this offset in the reloc's section offset.
3661
3662 ENUM
3663 BFD_RELOC_IA64_IMM14
3664 ENUMX
3665 BFD_RELOC_IA64_IMM22
3666 ENUMX
3667 BFD_RELOC_IA64_IMM64
3668 ENUMX
3669 BFD_RELOC_IA64_DIR32MSB
3670 ENUMX
3671 BFD_RELOC_IA64_DIR32LSB
3672 ENUMX
3673 BFD_RELOC_IA64_DIR64MSB
3674 ENUMX
3675 BFD_RELOC_IA64_DIR64LSB
3676 ENUMX
3677 BFD_RELOC_IA64_GPREL22
3678 ENUMX
3679 BFD_RELOC_IA64_GPREL64I
3680 ENUMX
3681 BFD_RELOC_IA64_GPREL32MSB
3682 ENUMX
3683 BFD_RELOC_IA64_GPREL32LSB
3684 ENUMX
3685 BFD_RELOC_IA64_GPREL64MSB
3686 ENUMX
3687 BFD_RELOC_IA64_GPREL64LSB
3688 ENUMX
3689 BFD_RELOC_IA64_LTOFF22
3690 ENUMX
3691 BFD_RELOC_IA64_LTOFF64I
3692 ENUMX
3693 BFD_RELOC_IA64_PLTOFF22
3694 ENUMX
3695 BFD_RELOC_IA64_PLTOFF64I
3696 ENUMX
3697 BFD_RELOC_IA64_PLTOFF64MSB
3698 ENUMX
3699 BFD_RELOC_IA64_PLTOFF64LSB
3700 ENUMX
3701 BFD_RELOC_IA64_FPTR64I
3702 ENUMX
3703 BFD_RELOC_IA64_FPTR32MSB
3704 ENUMX
3705 BFD_RELOC_IA64_FPTR32LSB
3706 ENUMX
3707 BFD_RELOC_IA64_FPTR64MSB
3708 ENUMX
3709 BFD_RELOC_IA64_FPTR64LSB
3710 ENUMX
3711 BFD_RELOC_IA64_PCREL21B
3712 ENUMX
3713 BFD_RELOC_IA64_PCREL21BI
3714 ENUMX
3715 BFD_RELOC_IA64_PCREL21M
3716 ENUMX
3717 BFD_RELOC_IA64_PCREL21F
3718 ENUMX
3719 BFD_RELOC_IA64_PCREL22
3720 ENUMX
3721 BFD_RELOC_IA64_PCREL60B
3722 ENUMX
3723 BFD_RELOC_IA64_PCREL64I
3724 ENUMX
3725 BFD_RELOC_IA64_PCREL32MSB
3726 ENUMX
3727 BFD_RELOC_IA64_PCREL32LSB
3728 ENUMX
3729 BFD_RELOC_IA64_PCREL64MSB
3730 ENUMX
3731 BFD_RELOC_IA64_PCREL64LSB
3732 ENUMX
3733 BFD_RELOC_IA64_LTOFF_FPTR22
3734 ENUMX
3735 BFD_RELOC_IA64_LTOFF_FPTR64I
3736 ENUMX
3737 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3738 ENUMX
3739 BFD_RELOC_IA64_LTOFF_FPTR32LSB
3740 ENUMX
3741 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3742 ENUMX
3743 BFD_RELOC_IA64_LTOFF_FPTR64LSB
3744 ENUMX
3745 BFD_RELOC_IA64_SEGREL32MSB
3746 ENUMX
3747 BFD_RELOC_IA64_SEGREL32LSB
3748 ENUMX
3749 BFD_RELOC_IA64_SEGREL64MSB
3750 ENUMX
3751 BFD_RELOC_IA64_SEGREL64LSB
3752 ENUMX
3753 BFD_RELOC_IA64_SECREL32MSB
3754 ENUMX
3755 BFD_RELOC_IA64_SECREL32LSB
3756 ENUMX
3757 BFD_RELOC_IA64_SECREL64MSB
3758 ENUMX
3759 BFD_RELOC_IA64_SECREL64LSB
3760 ENUMX
3761 BFD_RELOC_IA64_REL32MSB
3762 ENUMX
3763 BFD_RELOC_IA64_REL32LSB
3764 ENUMX
3765 BFD_RELOC_IA64_REL64MSB
3766 ENUMX
3767 BFD_RELOC_IA64_REL64LSB
3768 ENUMX
3769 BFD_RELOC_IA64_LTV32MSB
3770 ENUMX
3771 BFD_RELOC_IA64_LTV32LSB
3772 ENUMX
3773 BFD_RELOC_IA64_LTV64MSB
3774 ENUMX
3775 BFD_RELOC_IA64_LTV64LSB
3776 ENUMX
3777 BFD_RELOC_IA64_IPLTMSB
3778 ENUMX
3779 BFD_RELOC_IA64_IPLTLSB
3780 ENUMX
3781 BFD_RELOC_IA64_COPY
3782 ENUMX
3783 BFD_RELOC_IA64_LTOFF22X
3784 ENUMX
3785 BFD_RELOC_IA64_LDXMOV
3786 ENUMX
3787 BFD_RELOC_IA64_TPREL14
3788 ENUMX
3789 BFD_RELOC_IA64_TPREL22
3790 ENUMX
3791 BFD_RELOC_IA64_TPREL64I
3792 ENUMX
3793 BFD_RELOC_IA64_TPREL64MSB
3794 ENUMX
3795 BFD_RELOC_IA64_TPREL64LSB
3796 ENUMX
3797 BFD_RELOC_IA64_LTOFF_TPREL22
3798 ENUMX
3799 BFD_RELOC_IA64_DTPMOD64MSB
3800 ENUMX
3801 BFD_RELOC_IA64_DTPMOD64LSB
3802 ENUMX
3803 BFD_RELOC_IA64_LTOFF_DTPMOD22
3804 ENUMX
3805 BFD_RELOC_IA64_DTPREL14
3806 ENUMX
3807 BFD_RELOC_IA64_DTPREL22
3808 ENUMX
3809 BFD_RELOC_IA64_DTPREL64I
3810 ENUMX
3811 BFD_RELOC_IA64_DTPREL32MSB
3812 ENUMX
3813 BFD_RELOC_IA64_DTPREL32LSB
3814 ENUMX
3815 BFD_RELOC_IA64_DTPREL64MSB
3816 ENUMX
3817 BFD_RELOC_IA64_DTPREL64LSB
3818 ENUMX
3819 BFD_RELOC_IA64_LTOFF_DTPREL22
3820 ENUMDOC
3821 Intel IA64 Relocations.
3822
3823 ENUM
3824 BFD_RELOC_M68HC11_HI8
3825 ENUMDOC
3826 Motorola 68HC11 reloc.
3827 This is the 8 bit high part of an absolute address.
3828 ENUM
3829 BFD_RELOC_M68HC11_LO8
3830 ENUMDOC
3831 Motorola 68HC11 reloc.
3832 This is the 8 bit low part of an absolute address.
3833 ENUM
3834 BFD_RELOC_M68HC11_3B
3835 ENUMDOC
3836 Motorola 68HC11 reloc.
3837 This is the 3 bit of a value.
3838 ENUM
3839 BFD_RELOC_M68HC11_RL_JUMP
3840 ENUMDOC
3841 Motorola 68HC11 reloc.
3842 This reloc marks the beginning of a jump/call instruction.
3843 It is used for linker relaxation to correctly identify beginning
3844 of instruction and change some branches to use PC-relative
3845 addressing mode.
3846 ENUM
3847 BFD_RELOC_M68HC11_RL_GROUP
3848 ENUMDOC
3849 Motorola 68HC11 reloc.
3850 This reloc marks a group of several instructions that gcc generates
3851 and for which the linker relaxation pass can modify and/or remove
3852 some of them.
3853 ENUM
3854 BFD_RELOC_M68HC11_LO16
3855 ENUMDOC
3856 Motorola 68HC11 reloc.
3857 This is the 16-bit lower part of an address. It is used for 'call'
3858 instruction to specify the symbol address without any special
3859 transformation (due to memory bank window).
3860 ENUM
3861 BFD_RELOC_M68HC11_PAGE
3862 ENUMDOC
3863 Motorola 68HC11 reloc.
3864 This is a 8-bit reloc that specifies the page number of an address.
3865 It is used by 'call' instruction to specify the page number of
3866 the symbol.
3867 ENUM
3868 BFD_RELOC_M68HC11_24
3869 ENUMDOC
3870 Motorola 68HC11 reloc.
3871 This is a 24-bit reloc that represents the address with a 16-bit
3872 value and a 8-bit page number. The symbol address is transformed
3873 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3874 ENUM
3875 BFD_RELOC_M68HC12_5B
3876 ENUMDOC
3877 Motorola 68HC12 reloc.
3878 This is the 5 bits of a value.
3879
3880 ENUM
3881 BFD_RELOC_16C_NUM08
3882 ENUMX
3883 BFD_RELOC_16C_NUM08_C
3884 ENUMX
3885 BFD_RELOC_16C_NUM16
3886 ENUMX
3887 BFD_RELOC_16C_NUM16_C
3888 ENUMX
3889 BFD_RELOC_16C_NUM32
3890 ENUMX
3891 BFD_RELOC_16C_NUM32_C
3892 ENUMX
3893 BFD_RELOC_16C_DISP04
3894 ENUMX
3895 BFD_RELOC_16C_DISP04_C
3896 ENUMX
3897 BFD_RELOC_16C_DISP08
3898 ENUMX
3899 BFD_RELOC_16C_DISP08_C
3900 ENUMX
3901 BFD_RELOC_16C_DISP16
3902 ENUMX
3903 BFD_RELOC_16C_DISP16_C
3904 ENUMX
3905 BFD_RELOC_16C_DISP24
3906 ENUMX
3907 BFD_RELOC_16C_DISP24_C
3908 ENUMX
3909 BFD_RELOC_16C_DISP24a
3910 ENUMX
3911 BFD_RELOC_16C_DISP24a_C
3912 ENUMX
3913 BFD_RELOC_16C_REG04
3914 ENUMX
3915 BFD_RELOC_16C_REG04_C
3916 ENUMX
3917 BFD_RELOC_16C_REG04a
3918 ENUMX
3919 BFD_RELOC_16C_REG04a_C
3920 ENUMX
3921 BFD_RELOC_16C_REG14
3922 ENUMX
3923 BFD_RELOC_16C_REG14_C
3924 ENUMX
3925 BFD_RELOC_16C_REG16
3926 ENUMX
3927 BFD_RELOC_16C_REG16_C
3928 ENUMX
3929 BFD_RELOC_16C_REG20
3930 ENUMX
3931 BFD_RELOC_16C_REG20_C
3932 ENUMX
3933 BFD_RELOC_16C_ABS20
3934 ENUMX
3935 BFD_RELOC_16C_ABS20_C
3936 ENUMX
3937 BFD_RELOC_16C_ABS24
3938 ENUMX
3939 BFD_RELOC_16C_ABS24_C
3940 ENUMX
3941 BFD_RELOC_16C_IMM04
3942 ENUMX
3943 BFD_RELOC_16C_IMM04_C
3944 ENUMX
3945 BFD_RELOC_16C_IMM16
3946 ENUMX
3947 BFD_RELOC_16C_IMM16_C
3948 ENUMX
3949 BFD_RELOC_16C_IMM20
3950 ENUMX
3951 BFD_RELOC_16C_IMM20_C
3952 ENUMX
3953 BFD_RELOC_16C_IMM24
3954 ENUMX
3955 BFD_RELOC_16C_IMM24_C
3956 ENUMX
3957 BFD_RELOC_16C_IMM32
3958 ENUMX
3959 BFD_RELOC_16C_IMM32_C
3960 ENUMDOC
3961 NS CR16C Relocations.
3962
3963 ENUM
3964 BFD_RELOC_CRX_REL4
3965 ENUMX
3966 BFD_RELOC_CRX_REL8
3967 ENUMX
3968 BFD_RELOC_CRX_REL8_CMP
3969 ENUMX
3970 BFD_RELOC_CRX_REL16
3971 ENUMX
3972 BFD_RELOC_CRX_REL24
3973 ENUMX
3974 BFD_RELOC_CRX_REL32
3975 ENUMX
3976 BFD_RELOC_CRX_REGREL12
3977 ENUMX
3978 BFD_RELOC_CRX_REGREL22
3979 ENUMX
3980 BFD_RELOC_CRX_REGREL28
3981 ENUMX
3982 BFD_RELOC_CRX_REGREL32
3983 ENUMX
3984 BFD_RELOC_CRX_ABS16
3985 ENUMX
3986 BFD_RELOC_CRX_ABS32
3987 ENUMX
3988 BFD_RELOC_CRX_NUM8
3989 ENUMX
3990 BFD_RELOC_CRX_NUM16
3991 ENUMX
3992 BFD_RELOC_CRX_NUM32
3993 ENUMX
3994 BFD_RELOC_CRX_IMM16
3995 ENUMX
3996 BFD_RELOC_CRX_IMM32
3997 ENUMX
3998 BFD_RELOC_CRX_SWITCH8
3999 ENUMX
4000 BFD_RELOC_CRX_SWITCH16
4001 ENUMX
4002 BFD_RELOC_CRX_SWITCH32
4003 ENUMDOC
4004 NS CRX Relocations.
4005
4006 ENUM
4007 BFD_RELOC_CRIS_BDISP8
4008 ENUMX
4009 BFD_RELOC_CRIS_UNSIGNED_5
4010 ENUMX
4011 BFD_RELOC_CRIS_SIGNED_6
4012 ENUMX
4013 BFD_RELOC_CRIS_UNSIGNED_6
4014 ENUMX
4015 BFD_RELOC_CRIS_SIGNED_8
4016 ENUMX
4017 BFD_RELOC_CRIS_UNSIGNED_8
4018 ENUMX
4019 BFD_RELOC_CRIS_SIGNED_16
4020 ENUMX
4021 BFD_RELOC_CRIS_UNSIGNED_16
4022 ENUMX
4023 BFD_RELOC_CRIS_LAPCQ_OFFSET
4024 ENUMX
4025 BFD_RELOC_CRIS_UNSIGNED_4
4026 ENUMDOC
4027 These relocs are only used within the CRIS assembler. They are not
4028 (at present) written to any object files.
4029 ENUM
4030 BFD_RELOC_CRIS_COPY
4031 ENUMX
4032 BFD_RELOC_CRIS_GLOB_DAT
4033 ENUMX
4034 BFD_RELOC_CRIS_JUMP_SLOT
4035 ENUMX
4036 BFD_RELOC_CRIS_RELATIVE
4037 ENUMDOC
4038 Relocs used in ELF shared libraries for CRIS.
4039 ENUM
4040 BFD_RELOC_CRIS_32_GOT
4041 ENUMDOC
4042 32-bit offset to symbol-entry within GOT.
4043 ENUM
4044 BFD_RELOC_CRIS_16_GOT
4045 ENUMDOC
4046 16-bit offset to symbol-entry within GOT.
4047 ENUM
4048 BFD_RELOC_CRIS_32_GOTPLT
4049 ENUMDOC
4050 32-bit offset to symbol-entry within GOT, with PLT handling.
4051 ENUM
4052 BFD_RELOC_CRIS_16_GOTPLT
4053 ENUMDOC
4054 16-bit offset to symbol-entry within GOT, with PLT handling.
4055 ENUM
4056 BFD_RELOC_CRIS_32_GOTREL
4057 ENUMDOC
4058 32-bit offset to symbol, relative to GOT.
4059 ENUM
4060 BFD_RELOC_CRIS_32_PLT_GOTREL
4061 ENUMDOC
4062 32-bit offset to symbol with PLT entry, relative to GOT.
4063 ENUM
4064 BFD_RELOC_CRIS_32_PLT_PCREL
4065 ENUMDOC
4066 32-bit offset to symbol with PLT entry, relative to this relocation.
4067
4068 ENUM
4069 BFD_RELOC_860_COPY
4070 ENUMX
4071 BFD_RELOC_860_GLOB_DAT
4072 ENUMX
4073 BFD_RELOC_860_JUMP_SLOT
4074 ENUMX
4075 BFD_RELOC_860_RELATIVE
4076 ENUMX
4077 BFD_RELOC_860_PC26
4078 ENUMX
4079 BFD_RELOC_860_PLT26
4080 ENUMX
4081 BFD_RELOC_860_PC16
4082 ENUMX
4083 BFD_RELOC_860_LOW0
4084 ENUMX
4085 BFD_RELOC_860_SPLIT0
4086 ENUMX
4087 BFD_RELOC_860_LOW1
4088 ENUMX
4089 BFD_RELOC_860_SPLIT1
4090 ENUMX
4091 BFD_RELOC_860_LOW2
4092 ENUMX
4093 BFD_RELOC_860_SPLIT2
4094 ENUMX
4095 BFD_RELOC_860_LOW3
4096 ENUMX
4097 BFD_RELOC_860_LOGOT0
4098 ENUMX
4099 BFD_RELOC_860_SPGOT0
4100 ENUMX
4101 BFD_RELOC_860_LOGOT1
4102 ENUMX
4103 BFD_RELOC_860_SPGOT1
4104 ENUMX
4105 BFD_RELOC_860_LOGOTOFF0
4106 ENUMX
4107 BFD_RELOC_860_SPGOTOFF0
4108 ENUMX
4109 BFD_RELOC_860_LOGOTOFF1
4110 ENUMX
4111 BFD_RELOC_860_SPGOTOFF1
4112 ENUMX
4113 BFD_RELOC_860_LOGOTOFF2
4114 ENUMX
4115 BFD_RELOC_860_LOGOTOFF3
4116 ENUMX
4117 BFD_RELOC_860_LOPC
4118 ENUMX
4119 BFD_RELOC_860_HIGHADJ
4120 ENUMX
4121 BFD_RELOC_860_HAGOT
4122 ENUMX
4123 BFD_RELOC_860_HAGOTOFF
4124 ENUMX
4125 BFD_RELOC_860_HAPC
4126 ENUMX
4127 BFD_RELOC_860_HIGH
4128 ENUMX
4129 BFD_RELOC_860_HIGOT
4130 ENUMX
4131 BFD_RELOC_860_HIGOTOFF
4132 ENUMDOC
4133 Intel i860 Relocations.
4134
4135 ENUM
4136 BFD_RELOC_OPENRISC_ABS_26
4137 ENUMX
4138 BFD_RELOC_OPENRISC_REL_26
4139 ENUMDOC
4140 OpenRISC Relocations.
4141
4142 ENUM
4143 BFD_RELOC_H8_DIR16A8
4144 ENUMX
4145 BFD_RELOC_H8_DIR16R8
4146 ENUMX
4147 BFD_RELOC_H8_DIR24A8
4148 ENUMX
4149 BFD_RELOC_H8_DIR24R8
4150 ENUMX
4151 BFD_RELOC_H8_DIR32A16
4152 ENUMDOC
4153 H8 elf Relocations.
4154
4155 ENUM
4156 BFD_RELOC_XSTORMY16_REL_12
4157 ENUMX
4158 BFD_RELOC_XSTORMY16_12
4159 ENUMX
4160 BFD_RELOC_XSTORMY16_24
4161 ENUMX
4162 BFD_RELOC_XSTORMY16_FPTR16
4163 ENUMDOC
4164 Sony Xstormy16 Relocations.
4165
4166 ENUM
4167 BFD_RELOC_VAX_GLOB_DAT
4168 ENUMX
4169 BFD_RELOC_VAX_JMP_SLOT
4170 ENUMX
4171 BFD_RELOC_VAX_RELATIVE
4172 ENUMDOC
4173 Relocations used by VAX ELF.
4174
4175 ENUM
4176 BFD_RELOC_MSP430_10_PCREL
4177 ENUMX
4178 BFD_RELOC_MSP430_16_PCREL
4179 ENUMX
4180 BFD_RELOC_MSP430_16
4181 ENUMX
4182 BFD_RELOC_MSP430_16_PCREL_BYTE
4183 ENUMX
4184 BFD_RELOC_MSP430_16_BYTE
4185 ENUMX
4186 BFD_RELOC_MSP430_2X_PCREL
4187 ENUMX
4188 BFD_RELOC_MSP430_RL_PCREL
4189 ENUMDOC
4190 msp430 specific relocation codes
4191
4192 ENUM
4193 BFD_RELOC_IQ2000_OFFSET_16
4194 ENUMX
4195 BFD_RELOC_IQ2000_OFFSET_21
4196 ENUMX
4197 BFD_RELOC_IQ2000_UHI16
4198 ENUMDOC
4199 IQ2000 Relocations.
4200
4201 ENUM
4202 BFD_RELOC_XTENSA_RTLD
4203 ENUMDOC
4204 Special Xtensa relocation used only by PLT entries in ELF shared
4205 objects to indicate that the runtime linker should set the value
4206 to one of its own internal functions or data structures.
4207 ENUM
4208 BFD_RELOC_XTENSA_GLOB_DAT
4209 ENUMX
4210 BFD_RELOC_XTENSA_JMP_SLOT
4211 ENUMX
4212 BFD_RELOC_XTENSA_RELATIVE
4213 ENUMDOC
4214 Xtensa relocations for ELF shared objects.
4215 ENUM
4216 BFD_RELOC_XTENSA_PLT
4217 ENUMDOC
4218 Xtensa relocation used in ELF object files for symbols that may require
4219 PLT entries. Otherwise, this is just a generic 32-bit relocation.
4220 ENUM
4221 BFD_RELOC_XTENSA_DIFF8
4222 ENUMX
4223 BFD_RELOC_XTENSA_DIFF16
4224 ENUMX
4225 BFD_RELOC_XTENSA_DIFF32
4226 ENUMDOC
4227 Xtensa relocations to mark the difference of two local symbols.
4228 These are only needed to support linker relaxation and can be ignored
4229 when not relaxing. The field is set to the value of the difference
4230 assuming no relaxation. The relocation encodes the position of the
4231 first symbol so the linker can determine whether to adjust the field
4232 value.
4233 ENUM
4234 BFD_RELOC_XTENSA_SLOT0_OP
4235 ENUMX
4236 BFD_RELOC_XTENSA_SLOT1_OP
4237 ENUMX
4238 BFD_RELOC_XTENSA_SLOT2_OP
4239 ENUMX
4240 BFD_RELOC_XTENSA_SLOT3_OP
4241 ENUMX
4242 BFD_RELOC_XTENSA_SLOT4_OP
4243 ENUMX
4244 BFD_RELOC_XTENSA_SLOT5_OP
4245 ENUMX
4246 BFD_RELOC_XTENSA_SLOT6_OP
4247 ENUMX
4248 BFD_RELOC_XTENSA_SLOT7_OP
4249 ENUMX
4250 BFD_RELOC_XTENSA_SLOT8_OP
4251 ENUMX
4252 BFD_RELOC_XTENSA_SLOT9_OP
4253 ENUMX
4254 BFD_RELOC_XTENSA_SLOT10_OP
4255 ENUMX
4256 BFD_RELOC_XTENSA_SLOT11_OP
4257 ENUMX
4258 BFD_RELOC_XTENSA_SLOT12_OP
4259 ENUMX
4260 BFD_RELOC_XTENSA_SLOT13_OP
4261 ENUMX
4262 BFD_RELOC_XTENSA_SLOT14_OP
4263 ENUMDOC
4264 Generic Xtensa relocations for instruction operands. Only the slot
4265 number is encoded in the relocation. The relocation applies to the
4266 last PC-relative immediate operand, or if there are no PC-relative
4267 immediates, to the last immediate operand.
4268 ENUM
4269 BFD_RELOC_XTENSA_SLOT0_ALT
4270 ENUMX
4271 BFD_RELOC_XTENSA_SLOT1_ALT
4272 ENUMX
4273 BFD_RELOC_XTENSA_SLOT2_ALT
4274 ENUMX
4275 BFD_RELOC_XTENSA_SLOT3_ALT
4276 ENUMX
4277 BFD_RELOC_XTENSA_SLOT4_ALT
4278 ENUMX
4279 BFD_RELOC_XTENSA_SLOT5_ALT
4280 ENUMX
4281 BFD_RELOC_XTENSA_SLOT6_ALT
4282 ENUMX
4283 BFD_RELOC_XTENSA_SLOT7_ALT
4284 ENUMX
4285 BFD_RELOC_XTENSA_SLOT8_ALT
4286 ENUMX
4287 BFD_RELOC_XTENSA_SLOT9_ALT
4288 ENUMX
4289 BFD_RELOC_XTENSA_SLOT10_ALT
4290 ENUMX
4291 BFD_RELOC_XTENSA_SLOT11_ALT
4292 ENUMX
4293 BFD_RELOC_XTENSA_SLOT12_ALT
4294 ENUMX
4295 BFD_RELOC_XTENSA_SLOT13_ALT
4296 ENUMX
4297 BFD_RELOC_XTENSA_SLOT14_ALT
4298 ENUMDOC
4299 Alternate Xtensa relocations. Only the slot is encoded in the
4300 relocation. The meaning of these relocations is opcode-specific.
4301 ENUM
4302 BFD_RELOC_XTENSA_OP0
4303 ENUMX
4304 BFD_RELOC_XTENSA_OP1
4305 ENUMX
4306 BFD_RELOC_XTENSA_OP2
4307 ENUMDOC
4308 Xtensa relocations for backward compatibility. These have all been
4309 replaced by BFD_RELOC_XTENSA_SLOT0_OP.
4310 ENUM
4311 BFD_RELOC_XTENSA_ASM_EXPAND
4312 ENUMDOC
4313 Xtensa relocation to mark that the assembler expanded the
4314 instructions from an original target. The expansion size is
4315 encoded in the reloc size.
4316 ENUM
4317 BFD_RELOC_XTENSA_ASM_SIMPLIFY
4318 ENUMDOC
4319 Xtensa relocation to mark that the linker should simplify
4320 assembler-expanded instructions. This is commonly used
4321 internally by the linker after analysis of a
4322 BFD_RELOC_XTENSA_ASM_EXPAND.
4323
4324 ENDSENUM
4325 BFD_RELOC_UNUSED
4326 CODE_FRAGMENT
4327 .
4328 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4329 */
4330
4331 /*
4332 FUNCTION
4333 bfd_reloc_type_lookup
4334
4335 SYNOPSIS
4336 reloc_howto_type *bfd_reloc_type_lookup
4337 (bfd *abfd, bfd_reloc_code_real_type code);
4338
4339 DESCRIPTION
4340 Return a pointer to a howto structure which, when
4341 invoked, will perform the relocation @var{code} on data from the
4342 architecture noted.
4343
4344 */
4345
4346 reloc_howto_type *
4347 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4348 {
4349 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4350 }
4351
4352 static reloc_howto_type bfd_howto_32 =
4353 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
4354
4355 /*
4356 INTERNAL_FUNCTION
4357 bfd_default_reloc_type_lookup
4358
4359 SYNOPSIS
4360 reloc_howto_type *bfd_default_reloc_type_lookup
4361 (bfd *abfd, bfd_reloc_code_real_type code);
4362
4363 DESCRIPTION
4364 Provides a default relocation lookup routine for any architecture.
4365
4366 */
4367
4368 reloc_howto_type *
4369 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4370 {
4371 switch (code)
4372 {
4373 case BFD_RELOC_CTOR:
4374 /* The type of reloc used in a ctor, which will be as wide as the
4375 address - so either a 64, 32, or 16 bitter. */
4376 switch (bfd_get_arch_info (abfd)->bits_per_address)
4377 {
4378 case 64:
4379 BFD_FAIL ();
4380 case 32:
4381 return &bfd_howto_32;
4382 case 16:
4383 BFD_FAIL ();
4384 default:
4385 BFD_FAIL ();
4386 }
4387 default:
4388 BFD_FAIL ();
4389 }
4390 return NULL;
4391 }
4392
4393 /*
4394 FUNCTION
4395 bfd_get_reloc_code_name
4396
4397 SYNOPSIS
4398 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4399
4400 DESCRIPTION
4401 Provides a printable name for the supplied relocation code.
4402 Useful mainly for printing error messages.
4403 */
4404
4405 const char *
4406 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4407 {
4408 if (code > BFD_RELOC_UNUSED)
4409 return 0;
4410 return bfd_reloc_code_real_names[code];
4411 }
4412
4413 /*
4414 INTERNAL_FUNCTION
4415 bfd_generic_relax_section
4416
4417 SYNOPSIS
4418 bfd_boolean bfd_generic_relax_section
4419 (bfd *abfd,
4420 asection *section,
4421 struct bfd_link_info *,
4422 bfd_boolean *);
4423
4424 DESCRIPTION
4425 Provides default handling for relaxing for back ends which
4426 don't do relaxing.
4427 */
4428
4429 bfd_boolean
4430 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4431 asection *section ATTRIBUTE_UNUSED,
4432 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4433 bfd_boolean *again)
4434 {
4435 *again = FALSE;
4436 return TRUE;
4437 }
4438
4439 /*
4440 INTERNAL_FUNCTION
4441 bfd_generic_gc_sections
4442
4443 SYNOPSIS
4444 bfd_boolean bfd_generic_gc_sections
4445 (bfd *, struct bfd_link_info *);
4446
4447 DESCRIPTION
4448 Provides default handling for relaxing for back ends which
4449 don't do section gc -- i.e., does nothing.
4450 */
4451
4452 bfd_boolean
4453 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4454 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4455 {
4456 return TRUE;
4457 }
4458
4459 /*
4460 INTERNAL_FUNCTION
4461 bfd_generic_merge_sections
4462
4463 SYNOPSIS
4464 bfd_boolean bfd_generic_merge_sections
4465 (bfd *, struct bfd_link_info *);
4466
4467 DESCRIPTION
4468 Provides default handling for SEC_MERGE section merging for back ends
4469 which don't have SEC_MERGE support -- i.e., does nothing.
4470 */
4471
4472 bfd_boolean
4473 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4474 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4475 {
4476 return TRUE;
4477 }
4478
4479 /*
4480 INTERNAL_FUNCTION
4481 bfd_generic_get_relocated_section_contents
4482
4483 SYNOPSIS
4484 bfd_byte *bfd_generic_get_relocated_section_contents
4485 (bfd *abfd,
4486 struct bfd_link_info *link_info,
4487 struct bfd_link_order *link_order,
4488 bfd_byte *data,
4489 bfd_boolean relocatable,
4490 asymbol **symbols);
4491
4492 DESCRIPTION
4493 Provides default handling of relocation effort for back ends
4494 which can't be bothered to do it efficiently.
4495
4496 */
4497
4498 bfd_byte *
4499 bfd_generic_get_relocated_section_contents (bfd *abfd,
4500 struct bfd_link_info *link_info,
4501 struct bfd_link_order *link_order,
4502 bfd_byte *data,
4503 bfd_boolean relocatable,
4504 asymbol **symbols)
4505 {
4506 /* Get enough memory to hold the stuff. */
4507 bfd *input_bfd = link_order->u.indirect.section->owner;
4508 asection *input_section = link_order->u.indirect.section;
4509
4510 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4511 arelent **reloc_vector = NULL;
4512 long reloc_count;
4513 bfd_size_type sz;
4514
4515 if (reloc_size < 0)
4516 goto error_return;
4517
4518 reloc_vector = bfd_malloc (reloc_size);
4519 if (reloc_vector == NULL && reloc_size != 0)
4520 goto error_return;
4521
4522 /* Read in the section. */
4523 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4524 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
4525 goto error_return;
4526
4527 reloc_count = bfd_canonicalize_reloc (input_bfd,
4528 input_section,
4529 reloc_vector,
4530 symbols);
4531 if (reloc_count < 0)
4532 goto error_return;
4533
4534 if (reloc_count > 0)
4535 {
4536 arelent **parent;
4537 for (parent = reloc_vector; *parent != NULL; parent++)
4538 {
4539 char *error_message = NULL;
4540 bfd_reloc_status_type r =
4541 bfd_perform_relocation (input_bfd,
4542 *parent,
4543 data,
4544 input_section,
4545 relocatable ? abfd : NULL,
4546 &error_message);
4547
4548 if (relocatable)
4549 {
4550 asection *os = input_section->output_section;
4551
4552 /* A partial link, so keep the relocs. */
4553 os->orelocation[os->reloc_count] = *parent;
4554 os->reloc_count++;
4555 }
4556
4557 if (r != bfd_reloc_ok)
4558 {
4559 switch (r)
4560 {
4561 case bfd_reloc_undefined:
4562 if (!((*link_info->callbacks->undefined_symbol)
4563 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4564 input_bfd, input_section, (*parent)->address,
4565 TRUE)))
4566 goto error_return;
4567 break;
4568 case bfd_reloc_dangerous:
4569 BFD_ASSERT (error_message != NULL);
4570 if (!((*link_info->callbacks->reloc_dangerous)
4571 (link_info, error_message, input_bfd, input_section,
4572 (*parent)->address)))
4573 goto error_return;
4574 break;
4575 case bfd_reloc_overflow:
4576 if (!((*link_info->callbacks->reloc_overflow)
4577 (link_info, NULL,
4578 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4579 (*parent)->howto->name, (*parent)->addend,
4580 input_bfd, input_section, (*parent)->address)))
4581 goto error_return;
4582 break;
4583 case bfd_reloc_outofrange:
4584 default:
4585 abort ();
4586 break;
4587 }
4588
4589 }
4590 }
4591 }
4592 if (reloc_vector != NULL)
4593 free (reloc_vector);
4594 return data;
4595
4596 error_return:
4597 if (reloc_vector != NULL)
4598 free (reloc_vector);
4599 return NULL;
4600 }
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