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Fix building for MS1 and M32C.
[deliverable/binutils-gdb.git] / bfd / reloc.c
1 /* BFD support for handling relocation entries.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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_HI16_PCREL
2067 ENUMDOC
2068 High 16 bits of 32-bit pc-relative value
2069 ENUM
2070 BFD_RELOC_HI16_S_PCREL
2071 ENUMDOC
2072 High 16 bits of 32-bit pc-relative value, adjusted
2073 ENUM
2074 BFD_RELOC_LO16_PCREL
2075 ENUMDOC
2076 Low 16 bits of pc-relative value
2077
2078 ENUM
2079 BFD_RELOC_MIPS16_HI16
2080 ENUMDOC
2081 MIPS16 high 16 bits of 32-bit value.
2082 ENUM
2083 BFD_RELOC_MIPS16_HI16_S
2084 ENUMDOC
2085 MIPS16 high 16 bits of 32-bit value but the low 16 bits will be sign
2086 extended and added to form the final result. If the low 16
2087 bits form a negative number, we need to add one to the high value
2088 to compensate for the borrow when the low bits are added.
2089 ENUM
2090 BFD_RELOC_MIPS16_LO16
2091 ENUMDOC
2092 MIPS16 low 16 bits.
2093
2094 ENUM
2095 BFD_RELOC_MIPS_LITERAL
2096 ENUMDOC
2097 Relocation against a MIPS literal section.
2098
2099 ENUM
2100 BFD_RELOC_MIPS_GOT16
2101 ENUMX
2102 BFD_RELOC_MIPS_CALL16
2103 ENUMX
2104 BFD_RELOC_MIPS_GOT_HI16
2105 ENUMX
2106 BFD_RELOC_MIPS_GOT_LO16
2107 ENUMX
2108 BFD_RELOC_MIPS_CALL_HI16
2109 ENUMX
2110 BFD_RELOC_MIPS_CALL_LO16
2111 ENUMX
2112 BFD_RELOC_MIPS_SUB
2113 ENUMX
2114 BFD_RELOC_MIPS_GOT_PAGE
2115 ENUMX
2116 BFD_RELOC_MIPS_GOT_OFST
2117 ENUMX
2118 BFD_RELOC_MIPS_GOT_DISP
2119 ENUMX
2120 BFD_RELOC_MIPS_SHIFT5
2121 ENUMX
2122 BFD_RELOC_MIPS_SHIFT6
2123 ENUMX
2124 BFD_RELOC_MIPS_INSERT_A
2125 ENUMX
2126 BFD_RELOC_MIPS_INSERT_B
2127 ENUMX
2128 BFD_RELOC_MIPS_DELETE
2129 ENUMX
2130 BFD_RELOC_MIPS_HIGHEST
2131 ENUMX
2132 BFD_RELOC_MIPS_HIGHER
2133 ENUMX
2134 BFD_RELOC_MIPS_SCN_DISP
2135 ENUMX
2136 BFD_RELOC_MIPS_REL16
2137 ENUMX
2138 BFD_RELOC_MIPS_RELGOT
2139 ENUMX
2140 BFD_RELOC_MIPS_JALR
2141 ENUMX
2142 BFD_RELOC_MIPS_TLS_DTPMOD32
2143 ENUMX
2144 BFD_RELOC_MIPS_TLS_DTPREL32
2145 ENUMX
2146 BFD_RELOC_MIPS_TLS_DTPMOD64
2147 ENUMX
2148 BFD_RELOC_MIPS_TLS_DTPREL64
2149 ENUMX
2150 BFD_RELOC_MIPS_TLS_GD
2151 ENUMX
2152 BFD_RELOC_MIPS_TLS_LDM
2153 ENUMX
2154 BFD_RELOC_MIPS_TLS_DTPREL_HI16
2155 ENUMX
2156 BFD_RELOC_MIPS_TLS_DTPREL_LO16
2157 ENUMX
2158 BFD_RELOC_MIPS_TLS_GOTTPREL
2159 ENUMX
2160 BFD_RELOC_MIPS_TLS_TPREL32
2161 ENUMX
2162 BFD_RELOC_MIPS_TLS_TPREL64
2163 ENUMX
2164 BFD_RELOC_MIPS_TLS_TPREL_HI16
2165 ENUMX
2166 BFD_RELOC_MIPS_TLS_TPREL_LO16
2167 ENUMDOC
2168 MIPS ELF relocations.
2169 COMMENT
2170
2171 ENUM
2172 BFD_RELOC_FRV_LABEL16
2173 ENUMX
2174 BFD_RELOC_FRV_LABEL24
2175 ENUMX
2176 BFD_RELOC_FRV_LO16
2177 ENUMX
2178 BFD_RELOC_FRV_HI16
2179 ENUMX
2180 BFD_RELOC_FRV_GPREL12
2181 ENUMX
2182 BFD_RELOC_FRV_GPRELU12
2183 ENUMX
2184 BFD_RELOC_FRV_GPREL32
2185 ENUMX
2186 BFD_RELOC_FRV_GPRELHI
2187 ENUMX
2188 BFD_RELOC_FRV_GPRELLO
2189 ENUMX
2190 BFD_RELOC_FRV_GOT12
2191 ENUMX
2192 BFD_RELOC_FRV_GOTHI
2193 ENUMX
2194 BFD_RELOC_FRV_GOTLO
2195 ENUMX
2196 BFD_RELOC_FRV_FUNCDESC
2197 ENUMX
2198 BFD_RELOC_FRV_FUNCDESC_GOT12
2199 ENUMX
2200 BFD_RELOC_FRV_FUNCDESC_GOTHI
2201 ENUMX
2202 BFD_RELOC_FRV_FUNCDESC_GOTLO
2203 ENUMX
2204 BFD_RELOC_FRV_FUNCDESC_VALUE
2205 ENUMX
2206 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2207 ENUMX
2208 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2209 ENUMX
2210 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2211 ENUMX
2212 BFD_RELOC_FRV_GOTOFF12
2213 ENUMX
2214 BFD_RELOC_FRV_GOTOFFHI
2215 ENUMX
2216 BFD_RELOC_FRV_GOTOFFLO
2217 ENUMX
2218 BFD_RELOC_FRV_GETTLSOFF
2219 ENUMX
2220 BFD_RELOC_FRV_TLSDESC_VALUE
2221 ENUMX
2222 BFD_RELOC_FRV_GOTTLSDESC12
2223 ENUMX
2224 BFD_RELOC_FRV_GOTTLSDESCHI
2225 ENUMX
2226 BFD_RELOC_FRV_GOTTLSDESCLO
2227 ENUMX
2228 BFD_RELOC_FRV_TLSMOFF12
2229 ENUMX
2230 BFD_RELOC_FRV_TLSMOFFHI
2231 ENUMX
2232 BFD_RELOC_FRV_TLSMOFFLO
2233 ENUMX
2234 BFD_RELOC_FRV_GOTTLSOFF12
2235 ENUMX
2236 BFD_RELOC_FRV_GOTTLSOFFHI
2237 ENUMX
2238 BFD_RELOC_FRV_GOTTLSOFFLO
2239 ENUMX
2240 BFD_RELOC_FRV_TLSOFF
2241 ENUMX
2242 BFD_RELOC_FRV_TLSDESC_RELAX
2243 ENUMX
2244 BFD_RELOC_FRV_GETTLSOFF_RELAX
2245 ENUMX
2246 BFD_RELOC_FRV_TLSOFF_RELAX
2247 ENUMX
2248 BFD_RELOC_FRV_TLSMOFF
2249 ENUMDOC
2250 Fujitsu Frv Relocations.
2251 COMMENT
2252
2253 ENUM
2254 BFD_RELOC_MN10300_GOTOFF24
2255 ENUMDOC
2256 This is a 24bit GOT-relative reloc for the mn10300.
2257 ENUM
2258 BFD_RELOC_MN10300_GOT32
2259 ENUMDOC
2260 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2261 in the instruction.
2262 ENUM
2263 BFD_RELOC_MN10300_GOT24
2264 ENUMDOC
2265 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2266 in the instruction.
2267 ENUM
2268 BFD_RELOC_MN10300_GOT16
2269 ENUMDOC
2270 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2271 in the instruction.
2272 ENUM
2273 BFD_RELOC_MN10300_COPY
2274 ENUMDOC
2275 Copy symbol at runtime.
2276 ENUM
2277 BFD_RELOC_MN10300_GLOB_DAT
2278 ENUMDOC
2279 Create GOT entry.
2280 ENUM
2281 BFD_RELOC_MN10300_JMP_SLOT
2282 ENUMDOC
2283 Create PLT entry.
2284 ENUM
2285 BFD_RELOC_MN10300_RELATIVE
2286 ENUMDOC
2287 Adjust by program base.
2288 COMMENT
2289
2290 ENUM
2291 BFD_RELOC_386_GOT32
2292 ENUMX
2293 BFD_RELOC_386_PLT32
2294 ENUMX
2295 BFD_RELOC_386_COPY
2296 ENUMX
2297 BFD_RELOC_386_GLOB_DAT
2298 ENUMX
2299 BFD_RELOC_386_JUMP_SLOT
2300 ENUMX
2301 BFD_RELOC_386_RELATIVE
2302 ENUMX
2303 BFD_RELOC_386_GOTOFF
2304 ENUMX
2305 BFD_RELOC_386_GOTPC
2306 ENUMX
2307 BFD_RELOC_386_TLS_TPOFF
2308 ENUMX
2309 BFD_RELOC_386_TLS_IE
2310 ENUMX
2311 BFD_RELOC_386_TLS_GOTIE
2312 ENUMX
2313 BFD_RELOC_386_TLS_LE
2314 ENUMX
2315 BFD_RELOC_386_TLS_GD
2316 ENUMX
2317 BFD_RELOC_386_TLS_LDM
2318 ENUMX
2319 BFD_RELOC_386_TLS_LDO_32
2320 ENUMX
2321 BFD_RELOC_386_TLS_IE_32
2322 ENUMX
2323 BFD_RELOC_386_TLS_LE_32
2324 ENUMX
2325 BFD_RELOC_386_TLS_DTPMOD32
2326 ENUMX
2327 BFD_RELOC_386_TLS_DTPOFF32
2328 ENUMX
2329 BFD_RELOC_386_TLS_TPOFF32
2330 ENUMDOC
2331 i386/elf relocations
2332
2333 ENUM
2334 BFD_RELOC_X86_64_GOT32
2335 ENUMX
2336 BFD_RELOC_X86_64_PLT32
2337 ENUMX
2338 BFD_RELOC_X86_64_COPY
2339 ENUMX
2340 BFD_RELOC_X86_64_GLOB_DAT
2341 ENUMX
2342 BFD_RELOC_X86_64_JUMP_SLOT
2343 ENUMX
2344 BFD_RELOC_X86_64_RELATIVE
2345 ENUMX
2346 BFD_RELOC_X86_64_GOTPCREL
2347 ENUMX
2348 BFD_RELOC_X86_64_32S
2349 ENUMX
2350 BFD_RELOC_X86_64_DTPMOD64
2351 ENUMX
2352 BFD_RELOC_X86_64_DTPOFF64
2353 ENUMX
2354 BFD_RELOC_X86_64_TPOFF64
2355 ENUMX
2356 BFD_RELOC_X86_64_TLSGD
2357 ENUMX
2358 BFD_RELOC_X86_64_TLSLD
2359 ENUMX
2360 BFD_RELOC_X86_64_DTPOFF32
2361 ENUMX
2362 BFD_RELOC_X86_64_GOTTPOFF
2363 ENUMX
2364 BFD_RELOC_X86_64_TPOFF32
2365 ENUMX
2366 BFD_RELOC_X86_64_GOTOFF64
2367 ENUMX
2368 BFD_RELOC_X86_64_GOTPC32
2369 ENUMDOC
2370 x86-64/elf relocations
2371
2372 ENUM
2373 BFD_RELOC_NS32K_IMM_8
2374 ENUMX
2375 BFD_RELOC_NS32K_IMM_16
2376 ENUMX
2377 BFD_RELOC_NS32K_IMM_32
2378 ENUMX
2379 BFD_RELOC_NS32K_IMM_8_PCREL
2380 ENUMX
2381 BFD_RELOC_NS32K_IMM_16_PCREL
2382 ENUMX
2383 BFD_RELOC_NS32K_IMM_32_PCREL
2384 ENUMX
2385 BFD_RELOC_NS32K_DISP_8
2386 ENUMX
2387 BFD_RELOC_NS32K_DISP_16
2388 ENUMX
2389 BFD_RELOC_NS32K_DISP_32
2390 ENUMX
2391 BFD_RELOC_NS32K_DISP_8_PCREL
2392 ENUMX
2393 BFD_RELOC_NS32K_DISP_16_PCREL
2394 ENUMX
2395 BFD_RELOC_NS32K_DISP_32_PCREL
2396 ENUMDOC
2397 ns32k relocations
2398
2399 ENUM
2400 BFD_RELOC_PDP11_DISP_8_PCREL
2401 ENUMX
2402 BFD_RELOC_PDP11_DISP_6_PCREL
2403 ENUMDOC
2404 PDP11 relocations
2405
2406 ENUM
2407 BFD_RELOC_PJ_CODE_HI16
2408 ENUMX
2409 BFD_RELOC_PJ_CODE_LO16
2410 ENUMX
2411 BFD_RELOC_PJ_CODE_DIR16
2412 ENUMX
2413 BFD_RELOC_PJ_CODE_DIR32
2414 ENUMX
2415 BFD_RELOC_PJ_CODE_REL16
2416 ENUMX
2417 BFD_RELOC_PJ_CODE_REL32
2418 ENUMDOC
2419 Picojava relocs. Not all of these appear in object files.
2420
2421 ENUM
2422 BFD_RELOC_PPC_B26
2423 ENUMX
2424 BFD_RELOC_PPC_BA26
2425 ENUMX
2426 BFD_RELOC_PPC_TOC16
2427 ENUMX
2428 BFD_RELOC_PPC_B16
2429 ENUMX
2430 BFD_RELOC_PPC_B16_BRTAKEN
2431 ENUMX
2432 BFD_RELOC_PPC_B16_BRNTAKEN
2433 ENUMX
2434 BFD_RELOC_PPC_BA16
2435 ENUMX
2436 BFD_RELOC_PPC_BA16_BRTAKEN
2437 ENUMX
2438 BFD_RELOC_PPC_BA16_BRNTAKEN
2439 ENUMX
2440 BFD_RELOC_PPC_COPY
2441 ENUMX
2442 BFD_RELOC_PPC_GLOB_DAT
2443 ENUMX
2444 BFD_RELOC_PPC_JMP_SLOT
2445 ENUMX
2446 BFD_RELOC_PPC_RELATIVE
2447 ENUMX
2448 BFD_RELOC_PPC_LOCAL24PC
2449 ENUMX
2450 BFD_RELOC_PPC_EMB_NADDR32
2451 ENUMX
2452 BFD_RELOC_PPC_EMB_NADDR16
2453 ENUMX
2454 BFD_RELOC_PPC_EMB_NADDR16_LO
2455 ENUMX
2456 BFD_RELOC_PPC_EMB_NADDR16_HI
2457 ENUMX
2458 BFD_RELOC_PPC_EMB_NADDR16_HA
2459 ENUMX
2460 BFD_RELOC_PPC_EMB_SDAI16
2461 ENUMX
2462 BFD_RELOC_PPC_EMB_SDA2I16
2463 ENUMX
2464 BFD_RELOC_PPC_EMB_SDA2REL
2465 ENUMX
2466 BFD_RELOC_PPC_EMB_SDA21
2467 ENUMX
2468 BFD_RELOC_PPC_EMB_MRKREF
2469 ENUMX
2470 BFD_RELOC_PPC_EMB_RELSEC16
2471 ENUMX
2472 BFD_RELOC_PPC_EMB_RELST_LO
2473 ENUMX
2474 BFD_RELOC_PPC_EMB_RELST_HI
2475 ENUMX
2476 BFD_RELOC_PPC_EMB_RELST_HA
2477 ENUMX
2478 BFD_RELOC_PPC_EMB_BIT_FLD
2479 ENUMX
2480 BFD_RELOC_PPC_EMB_RELSDA
2481 ENUMX
2482 BFD_RELOC_PPC64_HIGHER
2483 ENUMX
2484 BFD_RELOC_PPC64_HIGHER_S
2485 ENUMX
2486 BFD_RELOC_PPC64_HIGHEST
2487 ENUMX
2488 BFD_RELOC_PPC64_HIGHEST_S
2489 ENUMX
2490 BFD_RELOC_PPC64_TOC16_LO
2491 ENUMX
2492 BFD_RELOC_PPC64_TOC16_HI
2493 ENUMX
2494 BFD_RELOC_PPC64_TOC16_HA
2495 ENUMX
2496 BFD_RELOC_PPC64_TOC
2497 ENUMX
2498 BFD_RELOC_PPC64_PLTGOT16
2499 ENUMX
2500 BFD_RELOC_PPC64_PLTGOT16_LO
2501 ENUMX
2502 BFD_RELOC_PPC64_PLTGOT16_HI
2503 ENUMX
2504 BFD_RELOC_PPC64_PLTGOT16_HA
2505 ENUMX
2506 BFD_RELOC_PPC64_ADDR16_DS
2507 ENUMX
2508 BFD_RELOC_PPC64_ADDR16_LO_DS
2509 ENUMX
2510 BFD_RELOC_PPC64_GOT16_DS
2511 ENUMX
2512 BFD_RELOC_PPC64_GOT16_LO_DS
2513 ENUMX
2514 BFD_RELOC_PPC64_PLT16_LO_DS
2515 ENUMX
2516 BFD_RELOC_PPC64_SECTOFF_DS
2517 ENUMX
2518 BFD_RELOC_PPC64_SECTOFF_LO_DS
2519 ENUMX
2520 BFD_RELOC_PPC64_TOC16_DS
2521 ENUMX
2522 BFD_RELOC_PPC64_TOC16_LO_DS
2523 ENUMX
2524 BFD_RELOC_PPC64_PLTGOT16_DS
2525 ENUMX
2526 BFD_RELOC_PPC64_PLTGOT16_LO_DS
2527 ENUMDOC
2528 Power(rs6000) and PowerPC relocations.
2529
2530 ENUM
2531 BFD_RELOC_PPC_TLS
2532 ENUMX
2533 BFD_RELOC_PPC_DTPMOD
2534 ENUMX
2535 BFD_RELOC_PPC_TPREL16
2536 ENUMX
2537 BFD_RELOC_PPC_TPREL16_LO
2538 ENUMX
2539 BFD_RELOC_PPC_TPREL16_HI
2540 ENUMX
2541 BFD_RELOC_PPC_TPREL16_HA
2542 ENUMX
2543 BFD_RELOC_PPC_TPREL
2544 ENUMX
2545 BFD_RELOC_PPC_DTPREL16
2546 ENUMX
2547 BFD_RELOC_PPC_DTPREL16_LO
2548 ENUMX
2549 BFD_RELOC_PPC_DTPREL16_HI
2550 ENUMX
2551 BFD_RELOC_PPC_DTPREL16_HA
2552 ENUMX
2553 BFD_RELOC_PPC_DTPREL
2554 ENUMX
2555 BFD_RELOC_PPC_GOT_TLSGD16
2556 ENUMX
2557 BFD_RELOC_PPC_GOT_TLSGD16_LO
2558 ENUMX
2559 BFD_RELOC_PPC_GOT_TLSGD16_HI
2560 ENUMX
2561 BFD_RELOC_PPC_GOT_TLSGD16_HA
2562 ENUMX
2563 BFD_RELOC_PPC_GOT_TLSLD16
2564 ENUMX
2565 BFD_RELOC_PPC_GOT_TLSLD16_LO
2566 ENUMX
2567 BFD_RELOC_PPC_GOT_TLSLD16_HI
2568 ENUMX
2569 BFD_RELOC_PPC_GOT_TLSLD16_HA
2570 ENUMX
2571 BFD_RELOC_PPC_GOT_TPREL16
2572 ENUMX
2573 BFD_RELOC_PPC_GOT_TPREL16_LO
2574 ENUMX
2575 BFD_RELOC_PPC_GOT_TPREL16_HI
2576 ENUMX
2577 BFD_RELOC_PPC_GOT_TPREL16_HA
2578 ENUMX
2579 BFD_RELOC_PPC_GOT_DTPREL16
2580 ENUMX
2581 BFD_RELOC_PPC_GOT_DTPREL16_LO
2582 ENUMX
2583 BFD_RELOC_PPC_GOT_DTPREL16_HI
2584 ENUMX
2585 BFD_RELOC_PPC_GOT_DTPREL16_HA
2586 ENUMX
2587 BFD_RELOC_PPC64_TPREL16_DS
2588 ENUMX
2589 BFD_RELOC_PPC64_TPREL16_LO_DS
2590 ENUMX
2591 BFD_RELOC_PPC64_TPREL16_HIGHER
2592 ENUMX
2593 BFD_RELOC_PPC64_TPREL16_HIGHERA
2594 ENUMX
2595 BFD_RELOC_PPC64_TPREL16_HIGHEST
2596 ENUMX
2597 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2598 ENUMX
2599 BFD_RELOC_PPC64_DTPREL16_DS
2600 ENUMX
2601 BFD_RELOC_PPC64_DTPREL16_LO_DS
2602 ENUMX
2603 BFD_RELOC_PPC64_DTPREL16_HIGHER
2604 ENUMX
2605 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2606 ENUMX
2607 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2608 ENUMX
2609 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2610 ENUMDOC
2611 PowerPC and PowerPC64 thread-local storage relocations.
2612
2613 ENUM
2614 BFD_RELOC_I370_D12
2615 ENUMDOC
2616 IBM 370/390 relocations
2617
2618 ENUM
2619 BFD_RELOC_CTOR
2620 ENUMDOC
2621 The type of reloc used to build a constructor table - at the moment
2622 probably a 32 bit wide absolute relocation, but the target can choose.
2623 It generally does map to one of the other relocation types.
2624
2625 ENUM
2626 BFD_RELOC_ARM_PCREL_BRANCH
2627 ENUMDOC
2628 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2629 not stored in the instruction.
2630 ENUM
2631 BFD_RELOC_ARM_PCREL_BLX
2632 ENUMDOC
2633 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2634 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2635 field in the instruction.
2636 ENUM
2637 BFD_RELOC_THUMB_PCREL_BLX
2638 ENUMDOC
2639 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2640 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2641 field in the instruction.
2642
2643 ENUM
2644 BFD_RELOC_THUMB_PCREL_BRANCH7
2645 ENUMX
2646 BFD_RELOC_THUMB_PCREL_BRANCH9
2647 ENUMX
2648 BFD_RELOC_THUMB_PCREL_BRANCH12
2649 ENUMX
2650 BFD_RELOC_THUMB_PCREL_BRANCH20
2651 ENUMX
2652 BFD_RELOC_THUMB_PCREL_BRANCH23
2653 ENUMX
2654 BFD_RELOC_THUMB_PCREL_BRANCH25
2655 ENUMDOC
2656 Thumb 7-, 9-, 12-, 20-, 23-, and 25-bit pc-relative branches.
2657 The lowest bit must be zero and is not stored in the instruction.
2658 Note that the corresponding ELF R_ARM_THM_JUMPnn constant has an
2659 "nn" one smaller in all cases. Note further that BRANCH23
2660 corresponds to R_ARM_THM_CALL.
2661
2662 ENUM
2663 BFD_RELOC_ARM_OFFSET_IMM
2664 ENUMDOC
2665 12-bit immediate offset, used in ARM-format ldr and str instructions.
2666
2667 ENUM
2668 BFD_RELOC_ARM_THUMB_OFFSET
2669 ENUMDOC
2670 5-bit immediate offset, used in Thumb-format ldr and str instructions.
2671
2672 ENUM
2673 BFD_RELOC_ARM_TARGET1
2674 ENUMDOC
2675 Pc-relative or absolute relocation depending on target. Used for
2676 entries in .init_array sections.
2677 ENUM
2678 BFD_RELOC_ARM_ROSEGREL32
2679 ENUMDOC
2680 Read-only segment base relative address.
2681 ENUM
2682 BFD_RELOC_ARM_SBREL32
2683 ENUMDOC
2684 Data segment base relative address.
2685 ENUM
2686 BFD_RELOC_ARM_TARGET2
2687 ENUMDOC
2688 This reloc is used for references to RTTI data from exception handling
2689 tables. The actual definition depends on the target. It may be a
2690 pc-relative or some form of GOT-indirect relocation.
2691 ENUM
2692 BFD_RELOC_ARM_PREL31
2693 ENUMDOC
2694 31-bit PC relative address.
2695
2696 ENUM
2697 BFD_RELOC_ARM_JUMP_SLOT
2698 ENUMX
2699 BFD_RELOC_ARM_GLOB_DAT
2700 ENUMX
2701 BFD_RELOC_ARM_GOT32
2702 ENUMX
2703 BFD_RELOC_ARM_PLT32
2704 ENUMX
2705 BFD_RELOC_ARM_RELATIVE
2706 ENUMX
2707 BFD_RELOC_ARM_GOTOFF
2708 ENUMX
2709 BFD_RELOC_ARM_GOTPC
2710 ENUMDOC
2711 Relocations for setting up GOTs and PLTs for shared libraries.
2712
2713 ENUM
2714 BFD_RELOC_ARM_TLS_GD32
2715 ENUMX
2716 BFD_RELOC_ARM_TLS_LDO32
2717 ENUMX
2718 BFD_RELOC_ARM_TLS_LDM32
2719 ENUMX
2720 BFD_RELOC_ARM_TLS_DTPOFF32
2721 ENUMX
2722 BFD_RELOC_ARM_TLS_DTPMOD32
2723 ENUMX
2724 BFD_RELOC_ARM_TLS_TPOFF32
2725 ENUMX
2726 BFD_RELOC_ARM_TLS_IE32
2727 ENUMX
2728 BFD_RELOC_ARM_TLS_LE32
2729 ENUMDOC
2730 ARM thread-local storage relocations.
2731
2732 ENUM
2733 BFD_RELOC_ARM_IMMEDIATE
2734 ENUMX
2735 BFD_RELOC_ARM_ADRL_IMMEDIATE
2736 ENUMX
2737 BFD_RELOC_ARM_T32_IMMEDIATE
2738 ENUMX
2739 BFD_RELOC_ARM_SHIFT_IMM
2740 ENUMX
2741 BFD_RELOC_ARM_SMI
2742 ENUMX
2743 BFD_RELOC_ARM_SWI
2744 ENUMX
2745 BFD_RELOC_ARM_MULTI
2746 ENUMX
2747 BFD_RELOC_ARM_CP_OFF_IMM
2748 ENUMX
2749 BFD_RELOC_ARM_CP_OFF_IMM_S2
2750 ENUMX
2751 BFD_RELOC_ARM_ADR_IMM
2752 ENUMX
2753 BFD_RELOC_ARM_LDR_IMM
2754 ENUMX
2755 BFD_RELOC_ARM_LITERAL
2756 ENUMX
2757 BFD_RELOC_ARM_IN_POOL
2758 ENUMX
2759 BFD_RELOC_ARM_OFFSET_IMM8
2760 ENUMX
2761 BFD_RELOC_ARM_T32_OFFSET_U8
2762 ENUMX
2763 BFD_RELOC_ARM_T32_OFFSET_IMM
2764 ENUMX
2765 BFD_RELOC_ARM_HWLITERAL
2766 ENUMX
2767 BFD_RELOC_ARM_THUMB_ADD
2768 ENUMX
2769 BFD_RELOC_ARM_THUMB_IMM
2770 ENUMX
2771 BFD_RELOC_ARM_THUMB_SHIFT
2772 ENUMDOC
2773 These relocs are only used within the ARM assembler. They are not
2774 (at present) written to any object files.
2775
2776 ENUM
2777 BFD_RELOC_SH_PCDISP8BY2
2778 ENUMX
2779 BFD_RELOC_SH_PCDISP12BY2
2780 ENUMX
2781 BFD_RELOC_SH_IMM3
2782 ENUMX
2783 BFD_RELOC_SH_IMM3U
2784 ENUMX
2785 BFD_RELOC_SH_DISP12
2786 ENUMX
2787 BFD_RELOC_SH_DISP12BY2
2788 ENUMX
2789 BFD_RELOC_SH_DISP12BY4
2790 ENUMX
2791 BFD_RELOC_SH_DISP12BY8
2792 ENUMX
2793 BFD_RELOC_SH_DISP20
2794 ENUMX
2795 BFD_RELOC_SH_DISP20BY8
2796 ENUMX
2797 BFD_RELOC_SH_IMM4
2798 ENUMX
2799 BFD_RELOC_SH_IMM4BY2
2800 ENUMX
2801 BFD_RELOC_SH_IMM4BY4
2802 ENUMX
2803 BFD_RELOC_SH_IMM8
2804 ENUMX
2805 BFD_RELOC_SH_IMM8BY2
2806 ENUMX
2807 BFD_RELOC_SH_IMM8BY4
2808 ENUMX
2809 BFD_RELOC_SH_PCRELIMM8BY2
2810 ENUMX
2811 BFD_RELOC_SH_PCRELIMM8BY4
2812 ENUMX
2813 BFD_RELOC_SH_SWITCH16
2814 ENUMX
2815 BFD_RELOC_SH_SWITCH32
2816 ENUMX
2817 BFD_RELOC_SH_USES
2818 ENUMX
2819 BFD_RELOC_SH_COUNT
2820 ENUMX
2821 BFD_RELOC_SH_ALIGN
2822 ENUMX
2823 BFD_RELOC_SH_CODE
2824 ENUMX
2825 BFD_RELOC_SH_DATA
2826 ENUMX
2827 BFD_RELOC_SH_LABEL
2828 ENUMX
2829 BFD_RELOC_SH_LOOP_START
2830 ENUMX
2831 BFD_RELOC_SH_LOOP_END
2832 ENUMX
2833 BFD_RELOC_SH_COPY
2834 ENUMX
2835 BFD_RELOC_SH_GLOB_DAT
2836 ENUMX
2837 BFD_RELOC_SH_JMP_SLOT
2838 ENUMX
2839 BFD_RELOC_SH_RELATIVE
2840 ENUMX
2841 BFD_RELOC_SH_GOTPC
2842 ENUMX
2843 BFD_RELOC_SH_GOT_LOW16
2844 ENUMX
2845 BFD_RELOC_SH_GOT_MEDLOW16
2846 ENUMX
2847 BFD_RELOC_SH_GOT_MEDHI16
2848 ENUMX
2849 BFD_RELOC_SH_GOT_HI16
2850 ENUMX
2851 BFD_RELOC_SH_GOTPLT_LOW16
2852 ENUMX
2853 BFD_RELOC_SH_GOTPLT_MEDLOW16
2854 ENUMX
2855 BFD_RELOC_SH_GOTPLT_MEDHI16
2856 ENUMX
2857 BFD_RELOC_SH_GOTPLT_HI16
2858 ENUMX
2859 BFD_RELOC_SH_PLT_LOW16
2860 ENUMX
2861 BFD_RELOC_SH_PLT_MEDLOW16
2862 ENUMX
2863 BFD_RELOC_SH_PLT_MEDHI16
2864 ENUMX
2865 BFD_RELOC_SH_PLT_HI16
2866 ENUMX
2867 BFD_RELOC_SH_GOTOFF_LOW16
2868 ENUMX
2869 BFD_RELOC_SH_GOTOFF_MEDLOW16
2870 ENUMX
2871 BFD_RELOC_SH_GOTOFF_MEDHI16
2872 ENUMX
2873 BFD_RELOC_SH_GOTOFF_HI16
2874 ENUMX
2875 BFD_RELOC_SH_GOTPC_LOW16
2876 ENUMX
2877 BFD_RELOC_SH_GOTPC_MEDLOW16
2878 ENUMX
2879 BFD_RELOC_SH_GOTPC_MEDHI16
2880 ENUMX
2881 BFD_RELOC_SH_GOTPC_HI16
2882 ENUMX
2883 BFD_RELOC_SH_COPY64
2884 ENUMX
2885 BFD_RELOC_SH_GLOB_DAT64
2886 ENUMX
2887 BFD_RELOC_SH_JMP_SLOT64
2888 ENUMX
2889 BFD_RELOC_SH_RELATIVE64
2890 ENUMX
2891 BFD_RELOC_SH_GOT10BY4
2892 ENUMX
2893 BFD_RELOC_SH_GOT10BY8
2894 ENUMX
2895 BFD_RELOC_SH_GOTPLT10BY4
2896 ENUMX
2897 BFD_RELOC_SH_GOTPLT10BY8
2898 ENUMX
2899 BFD_RELOC_SH_GOTPLT32
2900 ENUMX
2901 BFD_RELOC_SH_SHMEDIA_CODE
2902 ENUMX
2903 BFD_RELOC_SH_IMMU5
2904 ENUMX
2905 BFD_RELOC_SH_IMMS6
2906 ENUMX
2907 BFD_RELOC_SH_IMMS6BY32
2908 ENUMX
2909 BFD_RELOC_SH_IMMU6
2910 ENUMX
2911 BFD_RELOC_SH_IMMS10
2912 ENUMX
2913 BFD_RELOC_SH_IMMS10BY2
2914 ENUMX
2915 BFD_RELOC_SH_IMMS10BY4
2916 ENUMX
2917 BFD_RELOC_SH_IMMS10BY8
2918 ENUMX
2919 BFD_RELOC_SH_IMMS16
2920 ENUMX
2921 BFD_RELOC_SH_IMMU16
2922 ENUMX
2923 BFD_RELOC_SH_IMM_LOW16
2924 ENUMX
2925 BFD_RELOC_SH_IMM_LOW16_PCREL
2926 ENUMX
2927 BFD_RELOC_SH_IMM_MEDLOW16
2928 ENUMX
2929 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2930 ENUMX
2931 BFD_RELOC_SH_IMM_MEDHI16
2932 ENUMX
2933 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2934 ENUMX
2935 BFD_RELOC_SH_IMM_HI16
2936 ENUMX
2937 BFD_RELOC_SH_IMM_HI16_PCREL
2938 ENUMX
2939 BFD_RELOC_SH_PT_16
2940 ENUMX
2941 BFD_RELOC_SH_TLS_GD_32
2942 ENUMX
2943 BFD_RELOC_SH_TLS_LD_32
2944 ENUMX
2945 BFD_RELOC_SH_TLS_LDO_32
2946 ENUMX
2947 BFD_RELOC_SH_TLS_IE_32
2948 ENUMX
2949 BFD_RELOC_SH_TLS_LE_32
2950 ENUMX
2951 BFD_RELOC_SH_TLS_DTPMOD32
2952 ENUMX
2953 BFD_RELOC_SH_TLS_DTPOFF32
2954 ENUMX
2955 BFD_RELOC_SH_TLS_TPOFF32
2956 ENUMDOC
2957 Renesas / SuperH SH relocs. Not all of these appear in object files.
2958
2959 ENUM
2960 BFD_RELOC_ARC_B22_PCREL
2961 ENUMDOC
2962 ARC Cores relocs.
2963 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2964 not stored in the instruction. The high 20 bits are installed in bits 26
2965 through 7 of the instruction.
2966 ENUM
2967 BFD_RELOC_ARC_B26
2968 ENUMDOC
2969 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2970 stored in the instruction. The high 24 bits are installed in bits 23
2971 through 0.
2972
2973 ENUM
2974 BFD_RELOC_D10V_10_PCREL_R
2975 ENUMDOC
2976 Mitsubishi D10V relocs.
2977 This is a 10-bit reloc with the right 2 bits
2978 assumed to be 0.
2979 ENUM
2980 BFD_RELOC_D10V_10_PCREL_L
2981 ENUMDOC
2982 Mitsubishi D10V relocs.
2983 This is a 10-bit reloc with the right 2 bits
2984 assumed to be 0. This is the same as the previous reloc
2985 except it is in the left container, i.e.,
2986 shifted left 15 bits.
2987 ENUM
2988 BFD_RELOC_D10V_18
2989 ENUMDOC
2990 This is an 18-bit reloc with the right 2 bits
2991 assumed to be 0.
2992 ENUM
2993 BFD_RELOC_D10V_18_PCREL
2994 ENUMDOC
2995 This is an 18-bit reloc with the right 2 bits
2996 assumed to be 0.
2997
2998 ENUM
2999 BFD_RELOC_D30V_6
3000 ENUMDOC
3001 Mitsubishi D30V relocs.
3002 This is a 6-bit absolute reloc.
3003 ENUM
3004 BFD_RELOC_D30V_9_PCREL
3005 ENUMDOC
3006 This is a 6-bit pc-relative reloc with
3007 the right 3 bits assumed to be 0.
3008 ENUM
3009 BFD_RELOC_D30V_9_PCREL_R
3010 ENUMDOC
3011 This is a 6-bit pc-relative reloc with
3012 the right 3 bits assumed to be 0. Same
3013 as the previous reloc but on the right side
3014 of the container.
3015 ENUM
3016 BFD_RELOC_D30V_15
3017 ENUMDOC
3018 This is a 12-bit absolute reloc with the
3019 right 3 bitsassumed to be 0.
3020 ENUM
3021 BFD_RELOC_D30V_15_PCREL
3022 ENUMDOC
3023 This is a 12-bit pc-relative reloc with
3024 the right 3 bits assumed to be 0.
3025 ENUM
3026 BFD_RELOC_D30V_15_PCREL_R
3027 ENUMDOC
3028 This is a 12-bit pc-relative reloc with
3029 the right 3 bits assumed to be 0. Same
3030 as the previous reloc but on the right side
3031 of the container.
3032 ENUM
3033 BFD_RELOC_D30V_21
3034 ENUMDOC
3035 This is an 18-bit absolute reloc with
3036 the right 3 bits assumed to be 0.
3037 ENUM
3038 BFD_RELOC_D30V_21_PCREL
3039 ENUMDOC
3040 This is an 18-bit pc-relative reloc with
3041 the right 3 bits assumed to be 0.
3042 ENUM
3043 BFD_RELOC_D30V_21_PCREL_R
3044 ENUMDOC
3045 This is an 18-bit pc-relative reloc with
3046 the right 3 bits assumed to be 0. Same
3047 as the previous reloc but on the right side
3048 of the container.
3049 ENUM
3050 BFD_RELOC_D30V_32
3051 ENUMDOC
3052 This is a 32-bit absolute reloc.
3053 ENUM
3054 BFD_RELOC_D30V_32_PCREL
3055 ENUMDOC
3056 This is a 32-bit pc-relative reloc.
3057
3058 ENUM
3059 BFD_RELOC_DLX_HI16_S
3060 ENUMDOC
3061 DLX relocs
3062 ENUM
3063 BFD_RELOC_DLX_LO16
3064 ENUMDOC
3065 DLX relocs
3066 ENUM
3067 BFD_RELOC_DLX_JMP26
3068 ENUMDOC
3069 DLX relocs
3070
3071 ENUM
3072 BFD_RELOC_M16C_8_PCREL8
3073 ENUMX
3074 BFD_RELOC_M16C_16_PCREL8
3075 ENUMX
3076 BFD_RELOC_M16C_8_PCREL16
3077 ENUMX
3078 BFD_RELOC_M16C_8_ELABEL24
3079 ENUMX
3080 BFD_RELOC_M16C_8_ABS16
3081 ENUMX
3082 BFD_RELOC_M16C_16_ABS16
3083 ENUMX
3084 BFD_RELOC_M16C_16_ABS24
3085 ENUMX
3086 BFD_RELOC_M16C_16_ABS32
3087 ENUMX
3088 BFD_RELOC_M16C_24_ABS16
3089 ENUMX
3090 BFD_RELOC_M16C_24_ABS24
3091 ENUMX
3092 BFD_RELOC_M16C_24_ABS32
3093 ENUMX
3094 BFD_RELOC_M16C_32_ABS16
3095 ENUMX
3096 BFD_RELOC_M16C_32_ABS24
3097 ENUMX
3098 BFD_RELOC_M16C_32_ABS32
3099 ENUMX
3100 BFD_RELOC_M16C_40_ABS16
3101 ENUMX
3102 BFD_RELOC_M16C_40_ABS24
3103 ENUMX
3104 BFD_RELOC_M16C_40_ABS32
3105 ENUMDOC
3106 Renesas M16C/M32C Relocations.
3107
3108 ENUM
3109 BFD_RELOC_M32R_24
3110 ENUMDOC
3111 Renesas M32R (formerly Mitsubishi M32R) relocs.
3112 This is a 24 bit absolute address.
3113 ENUM
3114 BFD_RELOC_M32R_10_PCREL
3115 ENUMDOC
3116 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
3117 ENUM
3118 BFD_RELOC_M32R_18_PCREL
3119 ENUMDOC
3120 This is an 18-bit reloc with the right 2 bits assumed to be 0.
3121 ENUM
3122 BFD_RELOC_M32R_26_PCREL
3123 ENUMDOC
3124 This is a 26-bit reloc with the right 2 bits assumed to be 0.
3125 ENUM
3126 BFD_RELOC_M32R_HI16_ULO
3127 ENUMDOC
3128 This is a 16-bit reloc containing the high 16 bits of an address
3129 used when the lower 16 bits are treated as unsigned.
3130 ENUM
3131 BFD_RELOC_M32R_HI16_SLO
3132 ENUMDOC
3133 This is a 16-bit reloc containing the high 16 bits of an address
3134 used when the lower 16 bits are treated as signed.
3135 ENUM
3136 BFD_RELOC_M32R_LO16
3137 ENUMDOC
3138 This is a 16-bit reloc containing the lower 16 bits of an address.
3139 ENUM
3140 BFD_RELOC_M32R_SDA16
3141 ENUMDOC
3142 This is a 16-bit reloc containing the small data area offset for use in
3143 add3, load, and store instructions.
3144 ENUM
3145 BFD_RELOC_M32R_GOT24
3146 ENUMX
3147 BFD_RELOC_M32R_26_PLTREL
3148 ENUMX
3149 BFD_RELOC_M32R_COPY
3150 ENUMX
3151 BFD_RELOC_M32R_GLOB_DAT
3152 ENUMX
3153 BFD_RELOC_M32R_JMP_SLOT
3154 ENUMX
3155 BFD_RELOC_M32R_RELATIVE
3156 ENUMX
3157 BFD_RELOC_M32R_GOTOFF
3158 ENUMX
3159 BFD_RELOC_M32R_GOTOFF_HI_ULO
3160 ENUMX
3161 BFD_RELOC_M32R_GOTOFF_HI_SLO
3162 ENUMX
3163 BFD_RELOC_M32R_GOTOFF_LO
3164 ENUMX
3165 BFD_RELOC_M32R_GOTPC24
3166 ENUMX
3167 BFD_RELOC_M32R_GOT16_HI_ULO
3168 ENUMX
3169 BFD_RELOC_M32R_GOT16_HI_SLO
3170 ENUMX
3171 BFD_RELOC_M32R_GOT16_LO
3172 ENUMX
3173 BFD_RELOC_M32R_GOTPC_HI_ULO
3174 ENUMX
3175 BFD_RELOC_M32R_GOTPC_HI_SLO
3176 ENUMX
3177 BFD_RELOC_M32R_GOTPC_LO
3178 ENUMDOC
3179 For PIC.
3180
3181
3182 ENUM
3183 BFD_RELOC_V850_9_PCREL
3184 ENUMDOC
3185 This is a 9-bit reloc
3186 ENUM
3187 BFD_RELOC_V850_22_PCREL
3188 ENUMDOC
3189 This is a 22-bit reloc
3190
3191 ENUM
3192 BFD_RELOC_V850_SDA_16_16_OFFSET
3193 ENUMDOC
3194 This is a 16 bit offset from the short data area pointer.
3195 ENUM
3196 BFD_RELOC_V850_SDA_15_16_OFFSET
3197 ENUMDOC
3198 This is a 16 bit offset (of which only 15 bits are used) from the
3199 short data area pointer.
3200 ENUM
3201 BFD_RELOC_V850_ZDA_16_16_OFFSET
3202 ENUMDOC
3203 This is a 16 bit offset from the zero data area pointer.
3204 ENUM
3205 BFD_RELOC_V850_ZDA_15_16_OFFSET
3206 ENUMDOC
3207 This is a 16 bit offset (of which only 15 bits are used) from the
3208 zero data area pointer.
3209 ENUM
3210 BFD_RELOC_V850_TDA_6_8_OFFSET
3211 ENUMDOC
3212 This is an 8 bit offset (of which only 6 bits are used) from the
3213 tiny data area pointer.
3214 ENUM
3215 BFD_RELOC_V850_TDA_7_8_OFFSET
3216 ENUMDOC
3217 This is an 8bit offset (of which only 7 bits are used) from the tiny
3218 data area pointer.
3219 ENUM
3220 BFD_RELOC_V850_TDA_7_7_OFFSET
3221 ENUMDOC
3222 This is a 7 bit offset from the tiny data area pointer.
3223 ENUM
3224 BFD_RELOC_V850_TDA_16_16_OFFSET
3225 ENUMDOC
3226 This is a 16 bit offset from the tiny data area pointer.
3227 COMMENT
3228 ENUM
3229 BFD_RELOC_V850_TDA_4_5_OFFSET
3230 ENUMDOC
3231 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3232 data area pointer.
3233 ENUM
3234 BFD_RELOC_V850_TDA_4_4_OFFSET
3235 ENUMDOC
3236 This is a 4 bit offset from the tiny data area pointer.
3237 ENUM
3238 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3239 ENUMDOC
3240 This is a 16 bit offset from the short data area pointer, with the
3241 bits placed non-contiguously in the instruction.
3242 ENUM
3243 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3244 ENUMDOC
3245 This is a 16 bit offset from the zero data area pointer, with the
3246 bits placed non-contiguously in the instruction.
3247 ENUM
3248 BFD_RELOC_V850_CALLT_6_7_OFFSET
3249 ENUMDOC
3250 This is a 6 bit offset from the call table base pointer.
3251 ENUM
3252 BFD_RELOC_V850_CALLT_16_16_OFFSET
3253 ENUMDOC
3254 This is a 16 bit offset from the call table base pointer.
3255 ENUM
3256 BFD_RELOC_V850_LONGCALL
3257 ENUMDOC
3258 Used for relaxing indirect function calls.
3259 ENUM
3260 BFD_RELOC_V850_LONGJUMP
3261 ENUMDOC
3262 Used for relaxing indirect jumps.
3263 ENUM
3264 BFD_RELOC_V850_ALIGN
3265 ENUMDOC
3266 Used to maintain alignment whilst relaxing.
3267 ENUM
3268 BFD_RELOC_V850_LO16_SPLIT_OFFSET
3269 ENUMDOC
3270 This is a variation of BFD_RELOC_LO16 that can be used in v850e ld.bu
3271 instructions.
3272 ENUM
3273 BFD_RELOC_MN10300_32_PCREL
3274 ENUMDOC
3275 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3276 instruction.
3277 ENUM
3278 BFD_RELOC_MN10300_16_PCREL
3279 ENUMDOC
3280 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3281 instruction.
3282
3283 ENUM
3284 BFD_RELOC_TIC30_LDP
3285 ENUMDOC
3286 This is a 8bit DP reloc for the tms320c30, where the most
3287 significant 8 bits of a 24 bit word are placed into the least
3288 significant 8 bits of the opcode.
3289
3290 ENUM
3291 BFD_RELOC_TIC54X_PARTLS7
3292 ENUMDOC
3293 This is a 7bit reloc for the tms320c54x, where the least
3294 significant 7 bits of a 16 bit word are placed into the least
3295 significant 7 bits of the opcode.
3296
3297 ENUM
3298 BFD_RELOC_TIC54X_PARTMS9
3299 ENUMDOC
3300 This is a 9bit DP reloc for the tms320c54x, where the most
3301 significant 9 bits of a 16 bit word are placed into the least
3302 significant 9 bits of the opcode.
3303
3304 ENUM
3305 BFD_RELOC_TIC54X_23
3306 ENUMDOC
3307 This is an extended address 23-bit reloc for the tms320c54x.
3308
3309 ENUM
3310 BFD_RELOC_TIC54X_16_OF_23
3311 ENUMDOC
3312 This is a 16-bit reloc for the tms320c54x, where the least
3313 significant 16 bits of a 23-bit extended address are placed into
3314 the opcode.
3315
3316 ENUM
3317 BFD_RELOC_TIC54X_MS7_OF_23
3318 ENUMDOC
3319 This is a reloc for the tms320c54x, where the most
3320 significant 7 bits of a 23-bit extended address are placed into
3321 the opcode.
3322
3323 ENUM
3324 BFD_RELOC_FR30_48
3325 ENUMDOC
3326 This is a 48 bit reloc for the FR30 that stores 32 bits.
3327 ENUM
3328 BFD_RELOC_FR30_20
3329 ENUMDOC
3330 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3331 two sections.
3332 ENUM
3333 BFD_RELOC_FR30_6_IN_4
3334 ENUMDOC
3335 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3336 4 bits.
3337 ENUM
3338 BFD_RELOC_FR30_8_IN_8
3339 ENUMDOC
3340 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3341 into 8 bits.
3342 ENUM
3343 BFD_RELOC_FR30_9_IN_8
3344 ENUMDOC
3345 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3346 into 8 bits.
3347 ENUM
3348 BFD_RELOC_FR30_10_IN_8
3349 ENUMDOC
3350 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3351 into 8 bits.
3352 ENUM
3353 BFD_RELOC_FR30_9_PCREL
3354 ENUMDOC
3355 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3356 short offset into 8 bits.
3357 ENUM
3358 BFD_RELOC_FR30_12_PCREL
3359 ENUMDOC
3360 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3361 short offset into 11 bits.
3362
3363 ENUM
3364 BFD_RELOC_MCORE_PCREL_IMM8BY4
3365 ENUMX
3366 BFD_RELOC_MCORE_PCREL_IMM11BY2
3367 ENUMX
3368 BFD_RELOC_MCORE_PCREL_IMM4BY2
3369 ENUMX
3370 BFD_RELOC_MCORE_PCREL_32
3371 ENUMX
3372 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3373 ENUMX
3374 BFD_RELOC_MCORE_RVA
3375 ENUMDOC
3376 Motorola Mcore relocations.
3377
3378 ENUM
3379 BFD_RELOC_MMIX_GETA
3380 ENUMX
3381 BFD_RELOC_MMIX_GETA_1
3382 ENUMX
3383 BFD_RELOC_MMIX_GETA_2
3384 ENUMX
3385 BFD_RELOC_MMIX_GETA_3
3386 ENUMDOC
3387 These are relocations for the GETA instruction.
3388 ENUM
3389 BFD_RELOC_MMIX_CBRANCH
3390 ENUMX
3391 BFD_RELOC_MMIX_CBRANCH_J
3392 ENUMX
3393 BFD_RELOC_MMIX_CBRANCH_1
3394 ENUMX
3395 BFD_RELOC_MMIX_CBRANCH_2
3396 ENUMX
3397 BFD_RELOC_MMIX_CBRANCH_3
3398 ENUMDOC
3399 These are relocations for a conditional branch instruction.
3400 ENUM
3401 BFD_RELOC_MMIX_PUSHJ
3402 ENUMX
3403 BFD_RELOC_MMIX_PUSHJ_1
3404 ENUMX
3405 BFD_RELOC_MMIX_PUSHJ_2
3406 ENUMX
3407 BFD_RELOC_MMIX_PUSHJ_3
3408 ENUMX
3409 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3410 ENUMDOC
3411 These are relocations for the PUSHJ instruction.
3412 ENUM
3413 BFD_RELOC_MMIX_JMP
3414 ENUMX
3415 BFD_RELOC_MMIX_JMP_1
3416 ENUMX
3417 BFD_RELOC_MMIX_JMP_2
3418 ENUMX
3419 BFD_RELOC_MMIX_JMP_3
3420 ENUMDOC
3421 These are relocations for the JMP instruction.
3422 ENUM
3423 BFD_RELOC_MMIX_ADDR19
3424 ENUMDOC
3425 This is a relocation for a relative address as in a GETA instruction or
3426 a branch.
3427 ENUM
3428 BFD_RELOC_MMIX_ADDR27
3429 ENUMDOC
3430 This is a relocation for a relative address as in a JMP instruction.
3431 ENUM
3432 BFD_RELOC_MMIX_REG_OR_BYTE
3433 ENUMDOC
3434 This is a relocation for an instruction field that may be a general
3435 register or a value 0..255.
3436 ENUM
3437 BFD_RELOC_MMIX_REG
3438 ENUMDOC
3439 This is a relocation for an instruction field that may be a general
3440 register.
3441 ENUM
3442 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3443 ENUMDOC
3444 This is a relocation for two instruction fields holding a register and
3445 an offset, the equivalent of the relocation.
3446 ENUM
3447 BFD_RELOC_MMIX_LOCAL
3448 ENUMDOC
3449 This relocation is an assertion that the expression is not allocated as
3450 a global register. It does not modify contents.
3451
3452 ENUM
3453 BFD_RELOC_AVR_7_PCREL
3454 ENUMDOC
3455 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3456 short offset into 7 bits.
3457 ENUM
3458 BFD_RELOC_AVR_13_PCREL
3459 ENUMDOC
3460 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3461 short offset into 12 bits.
3462 ENUM
3463 BFD_RELOC_AVR_16_PM
3464 ENUMDOC
3465 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3466 program memory address) into 16 bits.
3467 ENUM
3468 BFD_RELOC_AVR_LO8_LDI
3469 ENUMDOC
3470 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3471 data memory address) into 8 bit immediate value of LDI insn.
3472 ENUM
3473 BFD_RELOC_AVR_HI8_LDI
3474 ENUMDOC
3475 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3476 of data memory address) into 8 bit immediate value of LDI insn.
3477 ENUM
3478 BFD_RELOC_AVR_HH8_LDI
3479 ENUMDOC
3480 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3481 of program memory address) into 8 bit immediate value of LDI insn.
3482 ENUM
3483 BFD_RELOC_AVR_LO8_LDI_NEG
3484 ENUMDOC
3485 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3486 (usually data memory address) into 8 bit immediate value of SUBI insn.
3487 ENUM
3488 BFD_RELOC_AVR_HI8_LDI_NEG
3489 ENUMDOC
3490 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3491 (high 8 bit of data memory address) into 8 bit immediate value of
3492 SUBI insn.
3493 ENUM
3494 BFD_RELOC_AVR_HH8_LDI_NEG
3495 ENUMDOC
3496 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3497 (most high 8 bit of program memory address) into 8 bit immediate value
3498 of LDI or SUBI insn.
3499 ENUM
3500 BFD_RELOC_AVR_LO8_LDI_PM
3501 ENUMDOC
3502 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3503 command address) into 8 bit immediate value of LDI insn.
3504 ENUM
3505 BFD_RELOC_AVR_HI8_LDI_PM
3506 ENUMDOC
3507 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3508 of command address) into 8 bit immediate value of LDI insn.
3509 ENUM
3510 BFD_RELOC_AVR_HH8_LDI_PM
3511 ENUMDOC
3512 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3513 of command address) into 8 bit immediate value of LDI insn.
3514 ENUM
3515 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3516 ENUMDOC
3517 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3518 (usually command address) into 8 bit immediate value of SUBI insn.
3519 ENUM
3520 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3521 ENUMDOC
3522 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3523 (high 8 bit of 16 bit command address) into 8 bit immediate value
3524 of SUBI insn.
3525 ENUM
3526 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3527 ENUMDOC
3528 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3529 (high 6 bit of 22 bit command address) into 8 bit immediate
3530 value of SUBI insn.
3531 ENUM
3532 BFD_RELOC_AVR_CALL
3533 ENUMDOC
3534 This is a 32 bit reloc for the AVR that stores 23 bit value
3535 into 22 bits.
3536 ENUM
3537 BFD_RELOC_AVR_LDI
3538 ENUMDOC
3539 This is a 16 bit reloc for the AVR that stores all needed bits
3540 for absolute addressing with ldi with overflow check to linktime
3541 ENUM
3542 BFD_RELOC_AVR_6
3543 ENUMDOC
3544 This is a 6 bit reloc for the AVR that stores offset for ldd/std
3545 instructions
3546 ENUM
3547 BFD_RELOC_AVR_6_ADIW
3548 ENUMDOC
3549 This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw
3550 instructions
3551
3552 ENUM
3553 BFD_RELOC_390_12
3554 ENUMDOC
3555 Direct 12 bit.
3556 ENUM
3557 BFD_RELOC_390_GOT12
3558 ENUMDOC
3559 12 bit GOT offset.
3560 ENUM
3561 BFD_RELOC_390_PLT32
3562 ENUMDOC
3563 32 bit PC relative PLT address.
3564 ENUM
3565 BFD_RELOC_390_COPY
3566 ENUMDOC
3567 Copy symbol at runtime.
3568 ENUM
3569 BFD_RELOC_390_GLOB_DAT
3570 ENUMDOC
3571 Create GOT entry.
3572 ENUM
3573 BFD_RELOC_390_JMP_SLOT
3574 ENUMDOC
3575 Create PLT entry.
3576 ENUM
3577 BFD_RELOC_390_RELATIVE
3578 ENUMDOC
3579 Adjust by program base.
3580 ENUM
3581 BFD_RELOC_390_GOTPC
3582 ENUMDOC
3583 32 bit PC relative offset to GOT.
3584 ENUM
3585 BFD_RELOC_390_GOT16
3586 ENUMDOC
3587 16 bit GOT offset.
3588 ENUM
3589 BFD_RELOC_390_PC16DBL
3590 ENUMDOC
3591 PC relative 16 bit shifted by 1.
3592 ENUM
3593 BFD_RELOC_390_PLT16DBL
3594 ENUMDOC
3595 16 bit PC rel. PLT shifted by 1.
3596 ENUM
3597 BFD_RELOC_390_PC32DBL
3598 ENUMDOC
3599 PC relative 32 bit shifted by 1.
3600 ENUM
3601 BFD_RELOC_390_PLT32DBL
3602 ENUMDOC
3603 32 bit PC rel. PLT shifted by 1.
3604 ENUM
3605 BFD_RELOC_390_GOTPCDBL
3606 ENUMDOC
3607 32 bit PC rel. GOT shifted by 1.
3608 ENUM
3609 BFD_RELOC_390_GOT64
3610 ENUMDOC
3611 64 bit GOT offset.
3612 ENUM
3613 BFD_RELOC_390_PLT64
3614 ENUMDOC
3615 64 bit PC relative PLT address.
3616 ENUM
3617 BFD_RELOC_390_GOTENT
3618 ENUMDOC
3619 32 bit rel. offset to GOT entry.
3620 ENUM
3621 BFD_RELOC_390_GOTOFF64
3622 ENUMDOC
3623 64 bit offset to GOT.
3624 ENUM
3625 BFD_RELOC_390_GOTPLT12
3626 ENUMDOC
3627 12-bit offset to symbol-entry within GOT, with PLT handling.
3628 ENUM
3629 BFD_RELOC_390_GOTPLT16
3630 ENUMDOC
3631 16-bit offset to symbol-entry within GOT, with PLT handling.
3632 ENUM
3633 BFD_RELOC_390_GOTPLT32
3634 ENUMDOC
3635 32-bit offset to symbol-entry within GOT, with PLT handling.
3636 ENUM
3637 BFD_RELOC_390_GOTPLT64
3638 ENUMDOC
3639 64-bit offset to symbol-entry within GOT, with PLT handling.
3640 ENUM
3641 BFD_RELOC_390_GOTPLTENT
3642 ENUMDOC
3643 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3644 ENUM
3645 BFD_RELOC_390_PLTOFF16
3646 ENUMDOC
3647 16-bit rel. offset from the GOT to a PLT entry.
3648 ENUM
3649 BFD_RELOC_390_PLTOFF32
3650 ENUMDOC
3651 32-bit rel. offset from the GOT to a PLT entry.
3652 ENUM
3653 BFD_RELOC_390_PLTOFF64
3654 ENUMDOC
3655 64-bit rel. offset from the GOT to a PLT entry.
3656
3657 ENUM
3658 BFD_RELOC_390_TLS_LOAD
3659 ENUMX
3660 BFD_RELOC_390_TLS_GDCALL
3661 ENUMX
3662 BFD_RELOC_390_TLS_LDCALL
3663 ENUMX
3664 BFD_RELOC_390_TLS_GD32
3665 ENUMX
3666 BFD_RELOC_390_TLS_GD64
3667 ENUMX
3668 BFD_RELOC_390_TLS_GOTIE12
3669 ENUMX
3670 BFD_RELOC_390_TLS_GOTIE32
3671 ENUMX
3672 BFD_RELOC_390_TLS_GOTIE64
3673 ENUMX
3674 BFD_RELOC_390_TLS_LDM32
3675 ENUMX
3676 BFD_RELOC_390_TLS_LDM64
3677 ENUMX
3678 BFD_RELOC_390_TLS_IE32
3679 ENUMX
3680 BFD_RELOC_390_TLS_IE64
3681 ENUMX
3682 BFD_RELOC_390_TLS_IEENT
3683 ENUMX
3684 BFD_RELOC_390_TLS_LE32
3685 ENUMX
3686 BFD_RELOC_390_TLS_LE64
3687 ENUMX
3688 BFD_RELOC_390_TLS_LDO32
3689 ENUMX
3690 BFD_RELOC_390_TLS_LDO64
3691 ENUMX
3692 BFD_RELOC_390_TLS_DTPMOD
3693 ENUMX
3694 BFD_RELOC_390_TLS_DTPOFF
3695 ENUMX
3696 BFD_RELOC_390_TLS_TPOFF
3697 ENUMDOC
3698 s390 tls relocations.
3699
3700 ENUM
3701 BFD_RELOC_390_20
3702 ENUMX
3703 BFD_RELOC_390_GOT20
3704 ENUMX
3705 BFD_RELOC_390_GOTPLT20
3706 ENUMX
3707 BFD_RELOC_390_TLS_GOTIE20
3708 ENUMDOC
3709 Long displacement extension.
3710
3711 ENUM
3712 BFD_RELOC_IP2K_FR9
3713 ENUMDOC
3714 Scenix IP2K - 9-bit register number / data address
3715 ENUM
3716 BFD_RELOC_IP2K_BANK
3717 ENUMDOC
3718 Scenix IP2K - 4-bit register/data bank number
3719 ENUM
3720 BFD_RELOC_IP2K_ADDR16CJP
3721 ENUMDOC
3722 Scenix IP2K - low 13 bits of instruction word address
3723 ENUM
3724 BFD_RELOC_IP2K_PAGE3
3725 ENUMDOC
3726 Scenix IP2K - high 3 bits of instruction word address
3727 ENUM
3728 BFD_RELOC_IP2K_LO8DATA
3729 ENUMX
3730 BFD_RELOC_IP2K_HI8DATA
3731 ENUMX
3732 BFD_RELOC_IP2K_EX8DATA
3733 ENUMDOC
3734 Scenix IP2K - ext/low/high 8 bits of data address
3735 ENUM
3736 BFD_RELOC_IP2K_LO8INSN
3737 ENUMX
3738 BFD_RELOC_IP2K_HI8INSN
3739 ENUMDOC
3740 Scenix IP2K - low/high 8 bits of instruction word address
3741 ENUM
3742 BFD_RELOC_IP2K_PC_SKIP
3743 ENUMDOC
3744 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3745 ENUM
3746 BFD_RELOC_IP2K_TEXT
3747 ENUMDOC
3748 Scenix IP2K - 16 bit word address in text section.
3749 ENUM
3750 BFD_RELOC_IP2K_FR_OFFSET
3751 ENUMDOC
3752 Scenix IP2K - 7-bit sp or dp offset
3753 ENUM
3754 BFD_RELOC_VPE4KMATH_DATA
3755 ENUMX
3756 BFD_RELOC_VPE4KMATH_INSN
3757 ENUMDOC
3758 Scenix VPE4K coprocessor - data/insn-space addressing
3759
3760 ENUM
3761 BFD_RELOC_VTABLE_INHERIT
3762 ENUMX
3763 BFD_RELOC_VTABLE_ENTRY
3764 ENUMDOC
3765 These two relocations are used by the linker to determine which of
3766 the entries in a C++ virtual function table are actually used. When
3767 the --gc-sections option is given, the linker will zero out the entries
3768 that are not used, so that the code for those functions need not be
3769 included in the output.
3770
3771 VTABLE_INHERIT is a zero-space relocation used to describe to the
3772 linker the inheritance tree of a C++ virtual function table. The
3773 relocation's symbol should be the parent class' vtable, and the
3774 relocation should be located at the child vtable.
3775
3776 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3777 virtual function table entry. The reloc's symbol should refer to the
3778 table of the class mentioned in the code. Off of that base, an offset
3779 describes the entry that is being used. For Rela hosts, this offset
3780 is stored in the reloc's addend. For Rel hosts, we are forced to put
3781 this offset in the reloc's section offset.
3782
3783 ENUM
3784 BFD_RELOC_IA64_IMM14
3785 ENUMX
3786 BFD_RELOC_IA64_IMM22
3787 ENUMX
3788 BFD_RELOC_IA64_IMM64
3789 ENUMX
3790 BFD_RELOC_IA64_DIR32MSB
3791 ENUMX
3792 BFD_RELOC_IA64_DIR32LSB
3793 ENUMX
3794 BFD_RELOC_IA64_DIR64MSB
3795 ENUMX
3796 BFD_RELOC_IA64_DIR64LSB
3797 ENUMX
3798 BFD_RELOC_IA64_GPREL22
3799 ENUMX
3800 BFD_RELOC_IA64_GPREL64I
3801 ENUMX
3802 BFD_RELOC_IA64_GPREL32MSB
3803 ENUMX
3804 BFD_RELOC_IA64_GPREL32LSB
3805 ENUMX
3806 BFD_RELOC_IA64_GPREL64MSB
3807 ENUMX
3808 BFD_RELOC_IA64_GPREL64LSB
3809 ENUMX
3810 BFD_RELOC_IA64_LTOFF22
3811 ENUMX
3812 BFD_RELOC_IA64_LTOFF64I
3813 ENUMX
3814 BFD_RELOC_IA64_PLTOFF22
3815 ENUMX
3816 BFD_RELOC_IA64_PLTOFF64I
3817 ENUMX
3818 BFD_RELOC_IA64_PLTOFF64MSB
3819 ENUMX
3820 BFD_RELOC_IA64_PLTOFF64LSB
3821 ENUMX
3822 BFD_RELOC_IA64_FPTR64I
3823 ENUMX
3824 BFD_RELOC_IA64_FPTR32MSB
3825 ENUMX
3826 BFD_RELOC_IA64_FPTR32LSB
3827 ENUMX
3828 BFD_RELOC_IA64_FPTR64MSB
3829 ENUMX
3830 BFD_RELOC_IA64_FPTR64LSB
3831 ENUMX
3832 BFD_RELOC_IA64_PCREL21B
3833 ENUMX
3834 BFD_RELOC_IA64_PCREL21BI
3835 ENUMX
3836 BFD_RELOC_IA64_PCREL21M
3837 ENUMX
3838 BFD_RELOC_IA64_PCREL21F
3839 ENUMX
3840 BFD_RELOC_IA64_PCREL22
3841 ENUMX
3842 BFD_RELOC_IA64_PCREL60B
3843 ENUMX
3844 BFD_RELOC_IA64_PCREL64I
3845 ENUMX
3846 BFD_RELOC_IA64_PCREL32MSB
3847 ENUMX
3848 BFD_RELOC_IA64_PCREL32LSB
3849 ENUMX
3850 BFD_RELOC_IA64_PCREL64MSB
3851 ENUMX
3852 BFD_RELOC_IA64_PCREL64LSB
3853 ENUMX
3854 BFD_RELOC_IA64_LTOFF_FPTR22
3855 ENUMX
3856 BFD_RELOC_IA64_LTOFF_FPTR64I
3857 ENUMX
3858 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3859 ENUMX
3860 BFD_RELOC_IA64_LTOFF_FPTR32LSB
3861 ENUMX
3862 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3863 ENUMX
3864 BFD_RELOC_IA64_LTOFF_FPTR64LSB
3865 ENUMX
3866 BFD_RELOC_IA64_SEGREL32MSB
3867 ENUMX
3868 BFD_RELOC_IA64_SEGREL32LSB
3869 ENUMX
3870 BFD_RELOC_IA64_SEGREL64MSB
3871 ENUMX
3872 BFD_RELOC_IA64_SEGREL64LSB
3873 ENUMX
3874 BFD_RELOC_IA64_SECREL32MSB
3875 ENUMX
3876 BFD_RELOC_IA64_SECREL32LSB
3877 ENUMX
3878 BFD_RELOC_IA64_SECREL64MSB
3879 ENUMX
3880 BFD_RELOC_IA64_SECREL64LSB
3881 ENUMX
3882 BFD_RELOC_IA64_REL32MSB
3883 ENUMX
3884 BFD_RELOC_IA64_REL32LSB
3885 ENUMX
3886 BFD_RELOC_IA64_REL64MSB
3887 ENUMX
3888 BFD_RELOC_IA64_REL64LSB
3889 ENUMX
3890 BFD_RELOC_IA64_LTV32MSB
3891 ENUMX
3892 BFD_RELOC_IA64_LTV32LSB
3893 ENUMX
3894 BFD_RELOC_IA64_LTV64MSB
3895 ENUMX
3896 BFD_RELOC_IA64_LTV64LSB
3897 ENUMX
3898 BFD_RELOC_IA64_IPLTMSB
3899 ENUMX
3900 BFD_RELOC_IA64_IPLTLSB
3901 ENUMX
3902 BFD_RELOC_IA64_COPY
3903 ENUMX
3904 BFD_RELOC_IA64_LTOFF22X
3905 ENUMX
3906 BFD_RELOC_IA64_LDXMOV
3907 ENUMX
3908 BFD_RELOC_IA64_TPREL14
3909 ENUMX
3910 BFD_RELOC_IA64_TPREL22
3911 ENUMX
3912 BFD_RELOC_IA64_TPREL64I
3913 ENUMX
3914 BFD_RELOC_IA64_TPREL64MSB
3915 ENUMX
3916 BFD_RELOC_IA64_TPREL64LSB
3917 ENUMX
3918 BFD_RELOC_IA64_LTOFF_TPREL22
3919 ENUMX
3920 BFD_RELOC_IA64_DTPMOD64MSB
3921 ENUMX
3922 BFD_RELOC_IA64_DTPMOD64LSB
3923 ENUMX
3924 BFD_RELOC_IA64_LTOFF_DTPMOD22
3925 ENUMX
3926 BFD_RELOC_IA64_DTPREL14
3927 ENUMX
3928 BFD_RELOC_IA64_DTPREL22
3929 ENUMX
3930 BFD_RELOC_IA64_DTPREL64I
3931 ENUMX
3932 BFD_RELOC_IA64_DTPREL32MSB
3933 ENUMX
3934 BFD_RELOC_IA64_DTPREL32LSB
3935 ENUMX
3936 BFD_RELOC_IA64_DTPREL64MSB
3937 ENUMX
3938 BFD_RELOC_IA64_DTPREL64LSB
3939 ENUMX
3940 BFD_RELOC_IA64_LTOFF_DTPREL22
3941 ENUMDOC
3942 Intel IA64 Relocations.
3943
3944 ENUM
3945 BFD_RELOC_M68HC11_HI8
3946 ENUMDOC
3947 Motorola 68HC11 reloc.
3948 This is the 8 bit high part of an absolute address.
3949 ENUM
3950 BFD_RELOC_M68HC11_LO8
3951 ENUMDOC
3952 Motorola 68HC11 reloc.
3953 This is the 8 bit low part of an absolute address.
3954 ENUM
3955 BFD_RELOC_M68HC11_3B
3956 ENUMDOC
3957 Motorola 68HC11 reloc.
3958 This is the 3 bit of a value.
3959 ENUM
3960 BFD_RELOC_M68HC11_RL_JUMP
3961 ENUMDOC
3962 Motorola 68HC11 reloc.
3963 This reloc marks the beginning of a jump/call instruction.
3964 It is used for linker relaxation to correctly identify beginning
3965 of instruction and change some branches to use PC-relative
3966 addressing mode.
3967 ENUM
3968 BFD_RELOC_M68HC11_RL_GROUP
3969 ENUMDOC
3970 Motorola 68HC11 reloc.
3971 This reloc marks a group of several instructions that gcc generates
3972 and for which the linker relaxation pass can modify and/or remove
3973 some of them.
3974 ENUM
3975 BFD_RELOC_M68HC11_LO16
3976 ENUMDOC
3977 Motorola 68HC11 reloc.
3978 This is the 16-bit lower part of an address. It is used for 'call'
3979 instruction to specify the symbol address without any special
3980 transformation (due to memory bank window).
3981 ENUM
3982 BFD_RELOC_M68HC11_PAGE
3983 ENUMDOC
3984 Motorola 68HC11 reloc.
3985 This is a 8-bit reloc that specifies the page number of an address.
3986 It is used by 'call' instruction to specify the page number of
3987 the symbol.
3988 ENUM
3989 BFD_RELOC_M68HC11_24
3990 ENUMDOC
3991 Motorola 68HC11 reloc.
3992 This is a 24-bit reloc that represents the address with a 16-bit
3993 value and a 8-bit page number. The symbol address is transformed
3994 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3995 ENUM
3996 BFD_RELOC_M68HC12_5B
3997 ENUMDOC
3998 Motorola 68HC12 reloc.
3999 This is the 5 bits of a value.
4000
4001 ENUM
4002 BFD_RELOC_16C_NUM08
4003 ENUMX
4004 BFD_RELOC_16C_NUM08_C
4005 ENUMX
4006 BFD_RELOC_16C_NUM16
4007 ENUMX
4008 BFD_RELOC_16C_NUM16_C
4009 ENUMX
4010 BFD_RELOC_16C_NUM32
4011 ENUMX
4012 BFD_RELOC_16C_NUM32_C
4013 ENUMX
4014 BFD_RELOC_16C_DISP04
4015 ENUMX
4016 BFD_RELOC_16C_DISP04_C
4017 ENUMX
4018 BFD_RELOC_16C_DISP08
4019 ENUMX
4020 BFD_RELOC_16C_DISP08_C
4021 ENUMX
4022 BFD_RELOC_16C_DISP16
4023 ENUMX
4024 BFD_RELOC_16C_DISP16_C
4025 ENUMX
4026 BFD_RELOC_16C_DISP24
4027 ENUMX
4028 BFD_RELOC_16C_DISP24_C
4029 ENUMX
4030 BFD_RELOC_16C_DISP24a
4031 ENUMX
4032 BFD_RELOC_16C_DISP24a_C
4033 ENUMX
4034 BFD_RELOC_16C_REG04
4035 ENUMX
4036 BFD_RELOC_16C_REG04_C
4037 ENUMX
4038 BFD_RELOC_16C_REG04a
4039 ENUMX
4040 BFD_RELOC_16C_REG04a_C
4041 ENUMX
4042 BFD_RELOC_16C_REG14
4043 ENUMX
4044 BFD_RELOC_16C_REG14_C
4045 ENUMX
4046 BFD_RELOC_16C_REG16
4047 ENUMX
4048 BFD_RELOC_16C_REG16_C
4049 ENUMX
4050 BFD_RELOC_16C_REG20
4051 ENUMX
4052 BFD_RELOC_16C_REG20_C
4053 ENUMX
4054 BFD_RELOC_16C_ABS20
4055 ENUMX
4056 BFD_RELOC_16C_ABS20_C
4057 ENUMX
4058 BFD_RELOC_16C_ABS24
4059 ENUMX
4060 BFD_RELOC_16C_ABS24_C
4061 ENUMX
4062 BFD_RELOC_16C_IMM04
4063 ENUMX
4064 BFD_RELOC_16C_IMM04_C
4065 ENUMX
4066 BFD_RELOC_16C_IMM16
4067 ENUMX
4068 BFD_RELOC_16C_IMM16_C
4069 ENUMX
4070 BFD_RELOC_16C_IMM20
4071 ENUMX
4072 BFD_RELOC_16C_IMM20_C
4073 ENUMX
4074 BFD_RELOC_16C_IMM24
4075 ENUMX
4076 BFD_RELOC_16C_IMM24_C
4077 ENUMX
4078 BFD_RELOC_16C_IMM32
4079 ENUMX
4080 BFD_RELOC_16C_IMM32_C
4081 ENUMDOC
4082 NS CR16C Relocations.
4083
4084 ENUM
4085 BFD_RELOC_CRX_REL4
4086 ENUMX
4087 BFD_RELOC_CRX_REL8
4088 ENUMX
4089 BFD_RELOC_CRX_REL8_CMP
4090 ENUMX
4091 BFD_RELOC_CRX_REL16
4092 ENUMX
4093 BFD_RELOC_CRX_REL24
4094 ENUMX
4095 BFD_RELOC_CRX_REL32
4096 ENUMX
4097 BFD_RELOC_CRX_REGREL12
4098 ENUMX
4099 BFD_RELOC_CRX_REGREL22
4100 ENUMX
4101 BFD_RELOC_CRX_REGREL28
4102 ENUMX
4103 BFD_RELOC_CRX_REGREL32
4104 ENUMX
4105 BFD_RELOC_CRX_ABS16
4106 ENUMX
4107 BFD_RELOC_CRX_ABS32
4108 ENUMX
4109 BFD_RELOC_CRX_NUM8
4110 ENUMX
4111 BFD_RELOC_CRX_NUM16
4112 ENUMX
4113 BFD_RELOC_CRX_NUM32
4114 ENUMX
4115 BFD_RELOC_CRX_IMM16
4116 ENUMX
4117 BFD_RELOC_CRX_IMM32
4118 ENUMX
4119 BFD_RELOC_CRX_SWITCH8
4120 ENUMX
4121 BFD_RELOC_CRX_SWITCH16
4122 ENUMX
4123 BFD_RELOC_CRX_SWITCH32
4124 ENUMDOC
4125 NS CRX Relocations.
4126
4127 ENUM
4128 BFD_RELOC_CRIS_BDISP8
4129 ENUMX
4130 BFD_RELOC_CRIS_UNSIGNED_5
4131 ENUMX
4132 BFD_RELOC_CRIS_SIGNED_6
4133 ENUMX
4134 BFD_RELOC_CRIS_UNSIGNED_6
4135 ENUMX
4136 BFD_RELOC_CRIS_SIGNED_8
4137 ENUMX
4138 BFD_RELOC_CRIS_UNSIGNED_8
4139 ENUMX
4140 BFD_RELOC_CRIS_SIGNED_16
4141 ENUMX
4142 BFD_RELOC_CRIS_UNSIGNED_16
4143 ENUMX
4144 BFD_RELOC_CRIS_LAPCQ_OFFSET
4145 ENUMX
4146 BFD_RELOC_CRIS_UNSIGNED_4
4147 ENUMDOC
4148 These relocs are only used within the CRIS assembler. They are not
4149 (at present) written to any object files.
4150 ENUM
4151 BFD_RELOC_CRIS_COPY
4152 ENUMX
4153 BFD_RELOC_CRIS_GLOB_DAT
4154 ENUMX
4155 BFD_RELOC_CRIS_JUMP_SLOT
4156 ENUMX
4157 BFD_RELOC_CRIS_RELATIVE
4158 ENUMDOC
4159 Relocs used in ELF shared libraries for CRIS.
4160 ENUM
4161 BFD_RELOC_CRIS_32_GOT
4162 ENUMDOC
4163 32-bit offset to symbol-entry within GOT.
4164 ENUM
4165 BFD_RELOC_CRIS_16_GOT
4166 ENUMDOC
4167 16-bit offset to symbol-entry within GOT.
4168 ENUM
4169 BFD_RELOC_CRIS_32_GOTPLT
4170 ENUMDOC
4171 32-bit offset to symbol-entry within GOT, with PLT handling.
4172 ENUM
4173 BFD_RELOC_CRIS_16_GOTPLT
4174 ENUMDOC
4175 16-bit offset to symbol-entry within GOT, with PLT handling.
4176 ENUM
4177 BFD_RELOC_CRIS_32_GOTREL
4178 ENUMDOC
4179 32-bit offset to symbol, relative to GOT.
4180 ENUM
4181 BFD_RELOC_CRIS_32_PLT_GOTREL
4182 ENUMDOC
4183 32-bit offset to symbol with PLT entry, relative to GOT.
4184 ENUM
4185 BFD_RELOC_CRIS_32_PLT_PCREL
4186 ENUMDOC
4187 32-bit offset to symbol with PLT entry, relative to this relocation.
4188
4189 ENUM
4190 BFD_RELOC_860_COPY
4191 ENUMX
4192 BFD_RELOC_860_GLOB_DAT
4193 ENUMX
4194 BFD_RELOC_860_JUMP_SLOT
4195 ENUMX
4196 BFD_RELOC_860_RELATIVE
4197 ENUMX
4198 BFD_RELOC_860_PC26
4199 ENUMX
4200 BFD_RELOC_860_PLT26
4201 ENUMX
4202 BFD_RELOC_860_PC16
4203 ENUMX
4204 BFD_RELOC_860_LOW0
4205 ENUMX
4206 BFD_RELOC_860_SPLIT0
4207 ENUMX
4208 BFD_RELOC_860_LOW1
4209 ENUMX
4210 BFD_RELOC_860_SPLIT1
4211 ENUMX
4212 BFD_RELOC_860_LOW2
4213 ENUMX
4214 BFD_RELOC_860_SPLIT2
4215 ENUMX
4216 BFD_RELOC_860_LOW3
4217 ENUMX
4218 BFD_RELOC_860_LOGOT0
4219 ENUMX
4220 BFD_RELOC_860_SPGOT0
4221 ENUMX
4222 BFD_RELOC_860_LOGOT1
4223 ENUMX
4224 BFD_RELOC_860_SPGOT1
4225 ENUMX
4226 BFD_RELOC_860_LOGOTOFF0
4227 ENUMX
4228 BFD_RELOC_860_SPGOTOFF0
4229 ENUMX
4230 BFD_RELOC_860_LOGOTOFF1
4231 ENUMX
4232 BFD_RELOC_860_SPGOTOFF1
4233 ENUMX
4234 BFD_RELOC_860_LOGOTOFF2
4235 ENUMX
4236 BFD_RELOC_860_LOGOTOFF3
4237 ENUMX
4238 BFD_RELOC_860_LOPC
4239 ENUMX
4240 BFD_RELOC_860_HIGHADJ
4241 ENUMX
4242 BFD_RELOC_860_HAGOT
4243 ENUMX
4244 BFD_RELOC_860_HAGOTOFF
4245 ENUMX
4246 BFD_RELOC_860_HAPC
4247 ENUMX
4248 BFD_RELOC_860_HIGH
4249 ENUMX
4250 BFD_RELOC_860_HIGOT
4251 ENUMX
4252 BFD_RELOC_860_HIGOTOFF
4253 ENUMDOC
4254 Intel i860 Relocations.
4255
4256 ENUM
4257 BFD_RELOC_OPENRISC_ABS_26
4258 ENUMX
4259 BFD_RELOC_OPENRISC_REL_26
4260 ENUMDOC
4261 OpenRISC Relocations.
4262
4263 ENUM
4264 BFD_RELOC_H8_DIR16A8
4265 ENUMX
4266 BFD_RELOC_H8_DIR16R8
4267 ENUMX
4268 BFD_RELOC_H8_DIR24A8
4269 ENUMX
4270 BFD_RELOC_H8_DIR24R8
4271 ENUMX
4272 BFD_RELOC_H8_DIR32A16
4273 ENUMDOC
4274 H8 elf Relocations.
4275
4276 ENUM
4277 BFD_RELOC_XSTORMY16_REL_12
4278 ENUMX
4279 BFD_RELOC_XSTORMY16_12
4280 ENUMX
4281 BFD_RELOC_XSTORMY16_24
4282 ENUMX
4283 BFD_RELOC_XSTORMY16_FPTR16
4284 ENUMDOC
4285 Sony Xstormy16 Relocations.
4286
4287 ENUM
4288 BFD_RELOC_VAX_GLOB_DAT
4289 ENUMX
4290 BFD_RELOC_VAX_JMP_SLOT
4291 ENUMX
4292 BFD_RELOC_VAX_RELATIVE
4293 ENUMDOC
4294 Relocations used by VAX ELF.
4295
4296 ENUM
4297 BFD_RELOC_MS1_PC16
4298 ENUMDOC
4299 Morpho MS1 - 16 bit immediate relocation.
4300 ENUM
4301 BFD_RELOC_MS1_HI16
4302 ENUMDOC
4303 Morpho MS1 - Hi 16 bits of an address.
4304 ENUM
4305 BFD_RELOC_MS1_LO16
4306 ENUMDOC
4307 Morpho MS1 - Low 16 bits of an address.
4308 ENUM
4309 BFD_RELOC_MS1_GNU_VTINHERIT
4310 ENUMDOC
4311 Morpho MS1 - Used to tell the linker which vtable entries are used.
4312 ENUM
4313 BFD_RELOC_MS1_GNU_VTENTRY
4314 ENUMDOC
4315 Morpho MS1 - Used to tell the linker which vtable entries are used.
4316
4317 ENUM
4318 BFD_RELOC_MSP430_10_PCREL
4319 ENUMX
4320 BFD_RELOC_MSP430_16_PCREL
4321 ENUMX
4322 BFD_RELOC_MSP430_16
4323 ENUMX
4324 BFD_RELOC_MSP430_16_PCREL_BYTE
4325 ENUMX
4326 BFD_RELOC_MSP430_16_BYTE
4327 ENUMX
4328 BFD_RELOC_MSP430_2X_PCREL
4329 ENUMX
4330 BFD_RELOC_MSP430_RL_PCREL
4331 ENUMDOC
4332 msp430 specific relocation codes
4333
4334 ENUM
4335 BFD_RELOC_IQ2000_OFFSET_16
4336 ENUMX
4337 BFD_RELOC_IQ2000_OFFSET_21
4338 ENUMX
4339 BFD_RELOC_IQ2000_UHI16
4340 ENUMDOC
4341 IQ2000 Relocations.
4342
4343 ENUM
4344 BFD_RELOC_XTENSA_RTLD
4345 ENUMDOC
4346 Special Xtensa relocation used only by PLT entries in ELF shared
4347 objects to indicate that the runtime linker should set the value
4348 to one of its own internal functions or data structures.
4349 ENUM
4350 BFD_RELOC_XTENSA_GLOB_DAT
4351 ENUMX
4352 BFD_RELOC_XTENSA_JMP_SLOT
4353 ENUMX
4354 BFD_RELOC_XTENSA_RELATIVE
4355 ENUMDOC
4356 Xtensa relocations for ELF shared objects.
4357 ENUM
4358 BFD_RELOC_XTENSA_PLT
4359 ENUMDOC
4360 Xtensa relocation used in ELF object files for symbols that may require
4361 PLT entries. Otherwise, this is just a generic 32-bit relocation.
4362 ENUM
4363 BFD_RELOC_XTENSA_DIFF8
4364 ENUMX
4365 BFD_RELOC_XTENSA_DIFF16
4366 ENUMX
4367 BFD_RELOC_XTENSA_DIFF32
4368 ENUMDOC
4369 Xtensa relocations to mark the difference of two local symbols.
4370 These are only needed to support linker relaxation and can be ignored
4371 when not relaxing. The field is set to the value of the difference
4372 assuming no relaxation. The relocation encodes the position of the
4373 first symbol so the linker can determine whether to adjust the field
4374 value.
4375 ENUM
4376 BFD_RELOC_XTENSA_SLOT0_OP
4377 ENUMX
4378 BFD_RELOC_XTENSA_SLOT1_OP
4379 ENUMX
4380 BFD_RELOC_XTENSA_SLOT2_OP
4381 ENUMX
4382 BFD_RELOC_XTENSA_SLOT3_OP
4383 ENUMX
4384 BFD_RELOC_XTENSA_SLOT4_OP
4385 ENUMX
4386 BFD_RELOC_XTENSA_SLOT5_OP
4387 ENUMX
4388 BFD_RELOC_XTENSA_SLOT6_OP
4389 ENUMX
4390 BFD_RELOC_XTENSA_SLOT7_OP
4391 ENUMX
4392 BFD_RELOC_XTENSA_SLOT8_OP
4393 ENUMX
4394 BFD_RELOC_XTENSA_SLOT9_OP
4395 ENUMX
4396 BFD_RELOC_XTENSA_SLOT10_OP
4397 ENUMX
4398 BFD_RELOC_XTENSA_SLOT11_OP
4399 ENUMX
4400 BFD_RELOC_XTENSA_SLOT12_OP
4401 ENUMX
4402 BFD_RELOC_XTENSA_SLOT13_OP
4403 ENUMX
4404 BFD_RELOC_XTENSA_SLOT14_OP
4405 ENUMDOC
4406 Generic Xtensa relocations for instruction operands. Only the slot
4407 number is encoded in the relocation. The relocation applies to the
4408 last PC-relative immediate operand, or if there are no PC-relative
4409 immediates, to the last immediate operand.
4410 ENUM
4411 BFD_RELOC_XTENSA_SLOT0_ALT
4412 ENUMX
4413 BFD_RELOC_XTENSA_SLOT1_ALT
4414 ENUMX
4415 BFD_RELOC_XTENSA_SLOT2_ALT
4416 ENUMX
4417 BFD_RELOC_XTENSA_SLOT3_ALT
4418 ENUMX
4419 BFD_RELOC_XTENSA_SLOT4_ALT
4420 ENUMX
4421 BFD_RELOC_XTENSA_SLOT5_ALT
4422 ENUMX
4423 BFD_RELOC_XTENSA_SLOT6_ALT
4424 ENUMX
4425 BFD_RELOC_XTENSA_SLOT7_ALT
4426 ENUMX
4427 BFD_RELOC_XTENSA_SLOT8_ALT
4428 ENUMX
4429 BFD_RELOC_XTENSA_SLOT9_ALT
4430 ENUMX
4431 BFD_RELOC_XTENSA_SLOT10_ALT
4432 ENUMX
4433 BFD_RELOC_XTENSA_SLOT11_ALT
4434 ENUMX
4435 BFD_RELOC_XTENSA_SLOT12_ALT
4436 ENUMX
4437 BFD_RELOC_XTENSA_SLOT13_ALT
4438 ENUMX
4439 BFD_RELOC_XTENSA_SLOT14_ALT
4440 ENUMDOC
4441 Alternate Xtensa relocations. Only the slot is encoded in the
4442 relocation. The meaning of these relocations is opcode-specific.
4443 ENUM
4444 BFD_RELOC_XTENSA_OP0
4445 ENUMX
4446 BFD_RELOC_XTENSA_OP1
4447 ENUMX
4448 BFD_RELOC_XTENSA_OP2
4449 ENUMDOC
4450 Xtensa relocations for backward compatibility. These have all been
4451 replaced by BFD_RELOC_XTENSA_SLOT0_OP.
4452 ENUM
4453 BFD_RELOC_XTENSA_ASM_EXPAND
4454 ENUMDOC
4455 Xtensa relocation to mark that the assembler expanded the
4456 instructions from an original target. The expansion size is
4457 encoded in the reloc size.
4458 ENUM
4459 BFD_RELOC_XTENSA_ASM_SIMPLIFY
4460 ENUMDOC
4461 Xtensa relocation to mark that the linker should simplify
4462 assembler-expanded instructions. This is commonly used
4463 internally by the linker after analysis of a
4464 BFD_RELOC_XTENSA_ASM_EXPAND.
4465
4466 ENDSENUM
4467 BFD_RELOC_UNUSED
4468 CODE_FRAGMENT
4469 .
4470 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
4471 */
4472
4473 /*
4474 FUNCTION
4475 bfd_reloc_type_lookup
4476
4477 SYNOPSIS
4478 reloc_howto_type *bfd_reloc_type_lookup
4479 (bfd *abfd, bfd_reloc_code_real_type code);
4480
4481 DESCRIPTION
4482 Return a pointer to a howto structure which, when
4483 invoked, will perform the relocation @var{code} on data from the
4484 architecture noted.
4485
4486 */
4487
4488 reloc_howto_type *
4489 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4490 {
4491 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4492 }
4493
4494 static reloc_howto_type bfd_howto_32 =
4495 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
4496
4497 /*
4498 INTERNAL_FUNCTION
4499 bfd_default_reloc_type_lookup
4500
4501 SYNOPSIS
4502 reloc_howto_type *bfd_default_reloc_type_lookup
4503 (bfd *abfd, bfd_reloc_code_real_type code);
4504
4505 DESCRIPTION
4506 Provides a default relocation lookup routine for any architecture.
4507
4508 */
4509
4510 reloc_howto_type *
4511 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4512 {
4513 switch (code)
4514 {
4515 case BFD_RELOC_CTOR:
4516 /* The type of reloc used in a ctor, which will be as wide as the
4517 address - so either a 64, 32, or 16 bitter. */
4518 switch (bfd_get_arch_info (abfd)->bits_per_address)
4519 {
4520 case 64:
4521 BFD_FAIL ();
4522 case 32:
4523 return &bfd_howto_32;
4524 case 16:
4525 BFD_FAIL ();
4526 default:
4527 BFD_FAIL ();
4528 }
4529 default:
4530 BFD_FAIL ();
4531 }
4532 return NULL;
4533 }
4534
4535 /*
4536 FUNCTION
4537 bfd_get_reloc_code_name
4538
4539 SYNOPSIS
4540 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4541
4542 DESCRIPTION
4543 Provides a printable name for the supplied relocation code.
4544 Useful mainly for printing error messages.
4545 */
4546
4547 const char *
4548 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4549 {
4550 if (code > BFD_RELOC_UNUSED)
4551 return 0;
4552 return bfd_reloc_code_real_names[code];
4553 }
4554
4555 /*
4556 INTERNAL_FUNCTION
4557 bfd_generic_relax_section
4558
4559 SYNOPSIS
4560 bfd_boolean bfd_generic_relax_section
4561 (bfd *abfd,
4562 asection *section,
4563 struct bfd_link_info *,
4564 bfd_boolean *);
4565
4566 DESCRIPTION
4567 Provides default handling for relaxing for back ends which
4568 don't do relaxing.
4569 */
4570
4571 bfd_boolean
4572 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4573 asection *section ATTRIBUTE_UNUSED,
4574 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4575 bfd_boolean *again)
4576 {
4577 *again = FALSE;
4578 return TRUE;
4579 }
4580
4581 /*
4582 INTERNAL_FUNCTION
4583 bfd_generic_gc_sections
4584
4585 SYNOPSIS
4586 bfd_boolean bfd_generic_gc_sections
4587 (bfd *, struct bfd_link_info *);
4588
4589 DESCRIPTION
4590 Provides default handling for relaxing for back ends which
4591 don't do section gc -- i.e., does nothing.
4592 */
4593
4594 bfd_boolean
4595 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4596 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4597 {
4598 return TRUE;
4599 }
4600
4601 /*
4602 INTERNAL_FUNCTION
4603 bfd_generic_merge_sections
4604
4605 SYNOPSIS
4606 bfd_boolean bfd_generic_merge_sections
4607 (bfd *, struct bfd_link_info *);
4608
4609 DESCRIPTION
4610 Provides default handling for SEC_MERGE section merging for back ends
4611 which don't have SEC_MERGE support -- i.e., does nothing.
4612 */
4613
4614 bfd_boolean
4615 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4616 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4617 {
4618 return TRUE;
4619 }
4620
4621 /*
4622 INTERNAL_FUNCTION
4623 bfd_generic_get_relocated_section_contents
4624
4625 SYNOPSIS
4626 bfd_byte *bfd_generic_get_relocated_section_contents
4627 (bfd *abfd,
4628 struct bfd_link_info *link_info,
4629 struct bfd_link_order *link_order,
4630 bfd_byte *data,
4631 bfd_boolean relocatable,
4632 asymbol **symbols);
4633
4634 DESCRIPTION
4635 Provides default handling of relocation effort for back ends
4636 which can't be bothered to do it efficiently.
4637
4638 */
4639
4640 bfd_byte *
4641 bfd_generic_get_relocated_section_contents (bfd *abfd,
4642 struct bfd_link_info *link_info,
4643 struct bfd_link_order *link_order,
4644 bfd_byte *data,
4645 bfd_boolean relocatable,
4646 asymbol **symbols)
4647 {
4648 /* Get enough memory to hold the stuff. */
4649 bfd *input_bfd = link_order->u.indirect.section->owner;
4650 asection *input_section = link_order->u.indirect.section;
4651
4652 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4653 arelent **reloc_vector = NULL;
4654 long reloc_count;
4655 bfd_size_type sz;
4656
4657 if (reloc_size < 0)
4658 goto error_return;
4659
4660 reloc_vector = bfd_malloc (reloc_size);
4661 if (reloc_vector == NULL && reloc_size != 0)
4662 goto error_return;
4663
4664 /* Read in the section. */
4665 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
4666 if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
4667 goto error_return;
4668
4669 reloc_count = bfd_canonicalize_reloc (input_bfd,
4670 input_section,
4671 reloc_vector,
4672 symbols);
4673 if (reloc_count < 0)
4674 goto error_return;
4675
4676 if (reloc_count > 0)
4677 {
4678 arelent **parent;
4679 for (parent = reloc_vector; *parent != NULL; parent++)
4680 {
4681 char *error_message = NULL;
4682 bfd_reloc_status_type r =
4683 bfd_perform_relocation (input_bfd,
4684 *parent,
4685 data,
4686 input_section,
4687 relocatable ? abfd : NULL,
4688 &error_message);
4689
4690 if (relocatable)
4691 {
4692 asection *os = input_section->output_section;
4693
4694 /* A partial link, so keep the relocs. */
4695 os->orelocation[os->reloc_count] = *parent;
4696 os->reloc_count++;
4697 }
4698
4699 if (r != bfd_reloc_ok)
4700 {
4701 switch (r)
4702 {
4703 case bfd_reloc_undefined:
4704 if (!((*link_info->callbacks->undefined_symbol)
4705 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4706 input_bfd, input_section, (*parent)->address,
4707 TRUE)))
4708 goto error_return;
4709 break;
4710 case bfd_reloc_dangerous:
4711 BFD_ASSERT (error_message != NULL);
4712 if (!((*link_info->callbacks->reloc_dangerous)
4713 (link_info, error_message, input_bfd, input_section,
4714 (*parent)->address)))
4715 goto error_return;
4716 break;
4717 case bfd_reloc_overflow:
4718 if (!((*link_info->callbacks->reloc_overflow)
4719 (link_info, NULL,
4720 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4721 (*parent)->howto->name, (*parent)->addend,
4722 input_bfd, input_section, (*parent)->address)))
4723 goto error_return;
4724 break;
4725 case bfd_reloc_outofrange:
4726 default:
4727 abort ();
4728 break;
4729 }
4730
4731 }
4732 }
4733 }
4734 if (reloc_vector != NULL)
4735 free (reloc_vector);
4736 return data;
4737
4738 error_return:
4739 if (reloc_vector != NULL)
4740 free (reloc_vector);
4741 return NULL;
4742 }
GDB Binutils - Deliverables
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