]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - bfd/reloc.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
2003-12-17 Alexandre Oliva <aoliva@redhat.com>
[thirdparty/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
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23 /*
24 SECTION
25 Relocations
26
27 BFD maintains relocations in much the same way it maintains
28 symbols: they are left alone until required, then read in
29 en-masse and translated into an internal form. A common
30 routine <<bfd_perform_relocation>> acts upon the
31 canonical form to do the fixup.
32
33 Relocations are maintained on a per section basis,
34 while symbols are maintained on a per BFD basis.
35
36 All that a back end has to do to fit the BFD interface is to create
37 a <<struct reloc_cache_entry>> for each relocation
38 in a particular section, and fill in the right bits of the structures.
39
40 @menu
41 @* typedef arelent::
42 @* howto manager::
43 @end menu
44
45 */
46
47 /* DO compile in the reloc_code name table from libbfd.h. */
48 #define _BFD_MAKE_TABLE_bfd_reloc_code_real
49
50 #include "bfd.h"
51 #include "sysdep.h"
52 #include "bfdlink.h"
53 #include "libbfd.h"
54 /*
55 DOCDD
56 INODE
57 typedef arelent, howto manager, Relocations, Relocations
58
59 SUBSECTION
60 typedef arelent
61
62 This is the structure of a relocation entry:
63
64 CODE_FRAGMENT
65 .
66 .typedef enum bfd_reloc_status
67 .{
68 . {* No errors detected. *}
69 . bfd_reloc_ok,
70 .
71 . {* The relocation was performed, but there was an overflow. *}
72 . bfd_reloc_overflow,
73 .
74 . {* The address to relocate was not within the section supplied. *}
75 . bfd_reloc_outofrange,
76 .
77 . {* Used by special functions. *}
78 . bfd_reloc_continue,
79 .
80 . {* Unsupported relocation size requested. *}
81 . bfd_reloc_notsupported,
82 .
83 . {* Unused. *}
84 . bfd_reloc_other,
85 .
86 . {* The symbol to relocate against was undefined. *}
87 . bfd_reloc_undefined,
88 .
89 . {* The relocation was performed, but may not be ok - presently
90 . generated only when linking i960 coff files with i960 b.out
91 . symbols. If this type is returned, the error_message argument
92 . to bfd_perform_relocation will be set. *}
93 . bfd_reloc_dangerous
94 . }
95 . bfd_reloc_status_type;
96 .
97 .
98 .typedef struct reloc_cache_entry
99 .{
100 . {* A pointer into the canonical table of pointers. *}
101 . struct bfd_symbol **sym_ptr_ptr;
102 .
103 . {* offset in section. *}
104 . bfd_size_type address;
105 .
106 . {* addend for relocation value. *}
107 . bfd_vma addend;
108 .
109 . {* Pointer to how to perform the required relocation. *}
110 . reloc_howto_type *howto;
111 .
112 .}
113 .arelent;
114 .
115 */
116
117 /*
118 DESCRIPTION
119
120 Here is a description of each of the fields within an <<arelent>>:
121
122 o <<sym_ptr_ptr>>
123
124 The symbol table pointer points to a pointer to the symbol
125 associated with the relocation request. It is the pointer
126 into the table returned by the back end's
127 <<canonicalize_symtab>> action. @xref{Symbols}. The symbol is
128 referenced through a pointer to a pointer so that tools like
129 the linker can fix up all the symbols of the same name by
130 modifying only one pointer. The relocation routine looks in
131 the symbol and uses the base of the section the symbol is
132 attached to and the value of the symbol as the initial
133 relocation offset. If the symbol pointer is zero, then the
134 section provided is looked up.
135
136 o <<address>>
137
138 The <<address>> field gives the offset in bytes from the base of
139 the section data which owns the relocation record to the first
140 byte of relocatable information. The actual data relocated
141 will be relative to this point; for example, a relocation
142 type which modifies the bottom two bytes of a four byte word
143 would not touch the first byte pointed to in a big endian
144 world.
145
146 o <<addend>>
147
148 The <<addend>> is a value provided by the back end to be added (!)
149 to the relocation offset. Its interpretation is dependent upon
150 the howto. For example, on the 68k the code:
151
152 | char foo[];
153 | main()
154 | {
155 | return foo[0x12345678];
156 | }
157
158 Could be compiled into:
159
160 | linkw fp,#-4
161 | moveb @@#12345678,d0
162 | extbl d0
163 | unlk fp
164 | rts
165
166 This could create a reloc pointing to <<foo>>, but leave the
167 offset in the data, something like:
168
169 |RELOCATION RECORDS FOR [.text]:
170 |offset type value
171 |00000006 32 _foo
172 |
173 |00000000 4e56 fffc ; linkw fp,#-4
174 |00000004 1039 1234 5678 ; moveb @@#12345678,d0
175 |0000000a 49c0 ; extbl d0
176 |0000000c 4e5e ; unlk fp
177 |0000000e 4e75 ; rts
178
179 Using coff and an 88k, some instructions don't have enough
180 space in them to represent the full address range, and
181 pointers have to be loaded in two parts. So you'd get something like:
182
183 | or.u r13,r0,hi16(_foo+0x12345678)
184 | ld.b r2,r13,lo16(_foo+0x12345678)
185 | jmp r1
186
187 This should create two relocs, both pointing to <<_foo>>, and with
188 0x12340000 in their addend field. The data would consist of:
189
190 |RELOCATION RECORDS FOR [.text]:
191 |offset type value
192 |00000002 HVRT16 _foo+0x12340000
193 |00000006 LVRT16 _foo+0x12340000
194 |
195 |00000000 5da05678 ; or.u r13,r0,0x5678
196 |00000004 1c4d5678 ; ld.b r2,r13,0x5678
197 |00000008 f400c001 ; jmp r1
198
199 The relocation routine digs out the value from the data, adds
200 it to the addend to get the original offset, and then adds the
201 value of <<_foo>>. Note that all 32 bits have to be kept around
202 somewhere, to cope with carry from bit 15 to bit 16.
203
204 One further example is the sparc and the a.out format. The
205 sparc has a similar problem to the 88k, in that some
206 instructions don't have room for an entire offset, but on the
207 sparc the parts are created in odd sized lumps. The designers of
208 the a.out format chose to not use the data within the section
209 for storing part of the offset; all the offset is kept within
210 the reloc. Anything in the data should be ignored.
211
212 | save %sp,-112,%sp
213 | sethi %hi(_foo+0x12345678),%g2
214 | ldsb [%g2+%lo(_foo+0x12345678)],%i0
215 | ret
216 | restore
217
218 Both relocs contain a pointer to <<foo>>, and the offsets
219 contain junk.
220
221 |RELOCATION RECORDS FOR [.text]:
222 |offset type value
223 |00000004 HI22 _foo+0x12345678
224 |00000008 LO10 _foo+0x12345678
225 |
226 |00000000 9de3bf90 ; save %sp,-112,%sp
227 |00000004 05000000 ; sethi %hi(_foo+0),%g2
228 |00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0
229 |0000000c 81c7e008 ; ret
230 |00000010 81e80000 ; restore
231
232 o <<howto>>
233
234 The <<howto>> field can be imagined as a
235 relocation instruction. It is a pointer to a structure which
236 contains information on what to do with all of the other
237 information in the reloc record and data section. A back end
238 would normally have a relocation instruction set and turn
239 relocations into pointers to the correct structure on input -
240 but it would be possible to create each howto field on demand.
241
242 */
243
244 /*
245 SUBSUBSECTION
246 <<enum complain_overflow>>
247
248 Indicates what sort of overflow checking should be done when
249 performing a relocation.
250
251 CODE_FRAGMENT
252 .
253 .enum complain_overflow
254 .{
255 . {* Do not complain on overflow. *}
256 . complain_overflow_dont,
257 .
258 . {* Complain if the bitfield overflows, whether it is considered
259 . as signed or unsigned. *}
260 . complain_overflow_bitfield,
261 .
262 . {* Complain if the value overflows when considered as signed
263 . number. *}
264 . complain_overflow_signed,
265 .
266 . {* Complain if the value overflows when considered as an
267 . unsigned number. *}
268 . complain_overflow_unsigned
269 .};
270
271 */
272
273 /*
274 SUBSUBSECTION
275 <<reloc_howto_type>>
276
277 The <<reloc_howto_type>> is a structure which contains all the
278 information that libbfd needs to know to tie up a back end's data.
279
280 CODE_FRAGMENT
281 .struct bfd_symbol; {* Forward declaration. *}
282 .
283 .struct reloc_howto_struct
284 .{
285 . {* The type field has mainly a documentary use - the back end can
286 . do what it wants with it, though normally the back end's
287 . external idea of what a reloc number is stored
288 . in this field. For example, a PC relative word relocation
289 . in a coff environment has the type 023 - because that's
290 . what the outside world calls a R_PCRWORD reloc. *}
291 . unsigned int type;
292 .
293 . {* The value the final relocation is shifted right by. This drops
294 . unwanted data from the relocation. *}
295 . unsigned int rightshift;
296 .
297 . {* The size of the item to be relocated. This is *not* a
298 . power-of-two measure. To get the number of bytes operated
299 . on by a type of relocation, use bfd_get_reloc_size. *}
300 . int size;
301 .
302 . {* The number of bits in the item to be relocated. This is used
303 . when doing overflow checking. *}
304 . unsigned int bitsize;
305 .
306 . {* Notes that the relocation is relative to the location in the
307 . data section of the addend. The relocation function will
308 . subtract from the relocation value the address of the location
309 . being relocated. *}
310 . bfd_boolean pc_relative;
311 .
312 . {* The bit position of the reloc value in the destination.
313 . The relocated value is left shifted by this amount. *}
314 . unsigned int bitpos;
315 .
316 . {* What type of overflow error should be checked for when
317 . relocating. *}
318 . enum complain_overflow complain_on_overflow;
319 .
320 . {* If this field is non null, then the supplied function is
321 . called rather than the normal function. This allows really
322 . strange relocation methods to be accommodated (e.g., i960 callj
323 . instructions). *}
324 . bfd_reloc_status_type (*special_function)
325 . (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
326 . bfd *, char **);
327 .
328 . {* The textual name of the relocation type. *}
329 . char *name;
330 .
331 . {* Some formats record a relocation addend in the section contents
332 . rather than with the relocation. For ELF formats this is the
333 . distinction between USE_REL and USE_RELA (though the code checks
334 . for USE_REL == 1/0). The value of this field is TRUE if the
335 . addend is recorded with the section contents; when performing a
336 . partial link (ld -r) the section contents (the data) will be
337 . modified. The value of this field is FALSE if addends are
338 . recorded with the relocation (in arelent.addend); when performing
339 . a partial link the relocation will be modified.
340 . All relocations for all ELF USE_RELA targets should set this field
341 . to FALSE (values of TRUE should be looked on with suspicion).
342 . However, the converse is not true: not all relocations of all ELF
343 . USE_REL targets set this field to TRUE. Why this is so is peculiar
344 . to each particular target. For relocs that aren't used in partial
345 . links (e.g. GOT stuff) it doesn't matter what this is set to. *}
346 . bfd_boolean partial_inplace;
347 .
348 . {* src_mask selects the part of the instruction (or data) to be used
349 . in the relocation sum. If the target relocations don't have an
350 . addend in the reloc, eg. ELF USE_REL, src_mask will normally equal
351 . dst_mask to extract the addend from the section contents. If
352 . relocations do have an addend in the reloc, eg. ELF USE_RELA, this
353 . field should be zero. Non-zero values for ELF USE_RELA targets are
354 . bogus as in those cases the value in the dst_mask part of the
355 . section contents should be treated as garbage. *}
356 . bfd_vma src_mask;
357 .
358 . {* dst_mask selects which parts of the instruction (or data) are
359 . replaced with a relocated value. *}
360 . bfd_vma dst_mask;
361 .
362 . {* When some formats create PC relative instructions, they leave
363 . the value of the pc of the place being relocated in the offset
364 . slot of the instruction, so that a PC relative relocation can
365 . be made just by adding in an ordinary offset (e.g., sun3 a.out).
366 . Some formats leave the displacement part of an instruction
367 . empty (e.g., m88k bcs); this flag signals the fact. *}
368 . bfd_boolean pcrel_offset;
369 .};
370 .
371 */
372
373 /*
374 FUNCTION
375 The HOWTO Macro
376
377 DESCRIPTION
378 The HOWTO define is horrible and will go away.
379
380 .#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
381 . { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC }
382
383 DESCRIPTION
384 And will be replaced with the totally magic way. But for the
385 moment, we are compatible, so do it this way.
386
387 .#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
388 . HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
389 . NAME, FALSE, 0, 0, IN)
390 .
391
392 DESCRIPTION
393 This is used to fill in an empty howto entry in an array.
394
395 .#define EMPTY_HOWTO(C) \
396 . HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
397 . NULL, FALSE, 0, 0, FALSE)
398 .
399
400 DESCRIPTION
401 Helper routine to turn a symbol into a relocation value.
402
403 .#define HOWTO_PREPARE(relocation, symbol) \
404 . { \
405 . if (symbol != NULL) \
406 . { \
407 . if (bfd_is_com_section (symbol->section)) \
408 . { \
409 . relocation = 0; \
410 . } \
411 . else \
412 . { \
413 . relocation = symbol->value; \
414 . } \
415 . } \
416 . }
417 .
418 */
419
420 /*
421 FUNCTION
422 bfd_get_reloc_size
423
424 SYNOPSIS
425 unsigned int bfd_get_reloc_size (reloc_howto_type *);
426
427 DESCRIPTION
428 For a reloc_howto_type that operates on a fixed number of bytes,
429 this returns the number of bytes operated on.
430 */
431
432 unsigned int
433 bfd_get_reloc_size (reloc_howto_type *howto)
434 {
435 switch (howto->size)
436 {
437 case 0: return 1;
438 case 1: return 2;
439 case 2: return 4;
440 case 3: return 0;
441 case 4: return 8;
442 case 8: return 16;
443 case -2: return 4;
444 default: abort ();
445 }
446 }
447
448 /*
449 TYPEDEF
450 arelent_chain
451
452 DESCRIPTION
453
454 How relocs are tied together in an <<asection>>:
455
456 .typedef struct relent_chain
457 .{
458 . arelent relent;
459 . struct relent_chain *next;
460 .}
461 .arelent_chain;
462 .
463 */
464
465 /* N_ONES produces N one bits, without overflowing machine arithmetic. */
466 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
467
468 /*
469 FUNCTION
470 bfd_check_overflow
471
472 SYNOPSIS
473 bfd_reloc_status_type bfd_check_overflow
474 (enum complain_overflow how,
475 unsigned int bitsize,
476 unsigned int rightshift,
477 unsigned int addrsize,
478 bfd_vma relocation);
479
480 DESCRIPTION
481 Perform overflow checking on @var{relocation} which has
482 @var{bitsize} significant bits and will be shifted right by
483 @var{rightshift} bits, on a machine with addresses containing
484 @var{addrsize} significant bits. The result is either of
485 @code{bfd_reloc_ok} or @code{bfd_reloc_overflow}.
486
487 */
488
489 bfd_reloc_status_type
490 bfd_check_overflow (enum complain_overflow how,
491 unsigned int bitsize,
492 unsigned int rightshift,
493 unsigned int addrsize,
494 bfd_vma relocation)
495 {
496 bfd_vma fieldmask, addrmask, signmask, ss, a;
497 bfd_reloc_status_type flag = bfd_reloc_ok;
498
499 a = relocation;
500
501 /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not,
502 we'll be permissive: extra bits in the field mask will
503 automatically extend the address mask for purposes of the
504 overflow check. */
505 fieldmask = N_ONES (bitsize);
506 addrmask = N_ONES (addrsize) | fieldmask;
507
508 switch (how)
509 {
510 case complain_overflow_dont:
511 break;
512
513 case complain_overflow_signed:
514 /* If any sign bits are set, all sign bits must be set. That
515 is, A must be a valid negative address after shifting. */
516 a = (a & addrmask) >> rightshift;
517 signmask = ~ (fieldmask >> 1);
518 ss = a & signmask;
519 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
520 flag = bfd_reloc_overflow;
521 break;
522
523 case complain_overflow_unsigned:
524 /* We have an overflow if the address does not fit in the field. */
525 a = (a & addrmask) >> rightshift;
526 if ((a & ~ fieldmask) != 0)
527 flag = bfd_reloc_overflow;
528 break;
529
530 case complain_overflow_bitfield:
531 /* Bitfields are sometimes signed, sometimes unsigned. We
532 explicitly allow an address wrap too, which means a bitfield
533 of n bits is allowed to store -2**n to 2**n-1. Thus overflow
534 if the value has some, but not all, bits set outside the
535 field. */
536 a >>= rightshift;
537 ss = a & ~ fieldmask;
538 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
539 flag = bfd_reloc_overflow;
540 break;
541
542 default:
543 abort ();
544 }
545
546 return flag;
547 }
548
549 /*
550 FUNCTION
551 bfd_perform_relocation
552
553 SYNOPSIS
554 bfd_reloc_status_type bfd_perform_relocation
555 (bfd *abfd,
556 arelent *reloc_entry,
557 void *data,
558 asection *input_section,
559 bfd *output_bfd,
560 char **error_message);
561
562 DESCRIPTION
563 If @var{output_bfd} is supplied to this function, the
564 generated image will be relocatable; the relocations are
565 copied to the output file after they have been changed to
566 reflect the new state of the world. There are two ways of
567 reflecting the results of partial linkage in an output file:
568 by modifying the output data in place, and by modifying the
569 relocation record. Some native formats (e.g., basic a.out and
570 basic coff) have no way of specifying an addend in the
571 relocation type, so the addend has to go in the output data.
572 This is no big deal since in these formats the output data
573 slot will always be big enough for the addend. Complex reloc
574 types with addends were invented to solve just this problem.
575 The @var{error_message} argument is set to an error message if
576 this return @code{bfd_reloc_dangerous}.
577
578 */
579
580 bfd_reloc_status_type
581 bfd_perform_relocation (bfd *abfd,
582 arelent *reloc_entry,
583 void *data,
584 asection *input_section,
585 bfd *output_bfd,
586 char **error_message)
587 {
588 bfd_vma relocation;
589 bfd_reloc_status_type flag = bfd_reloc_ok;
590 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
591 bfd_vma output_base = 0;
592 reloc_howto_type *howto = reloc_entry->howto;
593 asection *reloc_target_output_section;
594 asymbol *symbol;
595
596 symbol = *(reloc_entry->sym_ptr_ptr);
597 if (bfd_is_abs_section (symbol->section)
598 && output_bfd != NULL)
599 {
600 reloc_entry->address += input_section->output_offset;
601 return bfd_reloc_ok;
602 }
603
604 /* If we are not producing relocatable output, return an error if
605 the symbol is not defined. An undefined weak symbol is
606 considered to have a value of zero (SVR4 ABI, p. 4-27). */
607 if (bfd_is_und_section (symbol->section)
608 && (symbol->flags & BSF_WEAK) == 0
609 && output_bfd == NULL)
610 flag = bfd_reloc_undefined;
611
612 /* If there is a function supplied to handle this relocation type,
613 call it. It'll return `bfd_reloc_continue' if further processing
614 can be done. */
615 if (howto->special_function)
616 {
617 bfd_reloc_status_type cont;
618 cont = howto->special_function (abfd, reloc_entry, symbol, data,
619 input_section, output_bfd,
620 error_message);
621 if (cont != bfd_reloc_continue)
622 return cont;
623 }
624
625 /* Is the address of the relocation really within the section? */
626 if (reloc_entry->address > (input_section->_cooked_size
627 / bfd_octets_per_byte (abfd)))
628 return bfd_reloc_outofrange;
629
630 /* Work out which section the relocation is targeted at and the
631 initial relocation command value. */
632
633 /* Get symbol value. (Common symbols are special.) */
634 if (bfd_is_com_section (symbol->section))
635 relocation = 0;
636 else
637 relocation = symbol->value;
638
639 reloc_target_output_section = symbol->section->output_section;
640
641 /* Convert input-section-relative symbol value to absolute. */
642 if ((output_bfd && ! howto->partial_inplace)
643 || reloc_target_output_section == NULL)
644 output_base = 0;
645 else
646 output_base = reloc_target_output_section->vma;
647
648 relocation += output_base + symbol->section->output_offset;
649
650 /* Add in supplied addend. */
651 relocation += reloc_entry->addend;
652
653 /* Here the variable relocation holds the final address of the
654 symbol we are relocating against, plus any addend. */
655
656 if (howto->pc_relative)
657 {
658 /* This is a PC relative relocation. We want to set RELOCATION
659 to the distance between the address of the symbol and the
660 location. RELOCATION is already the address of the symbol.
661
662 We start by subtracting the address of the section containing
663 the location.
664
665 If pcrel_offset is set, we must further subtract the position
666 of the location within the section. Some targets arrange for
667 the addend to be the negative of the position of the location
668 within the section; for example, i386-aout does this. For
669 i386-aout, pcrel_offset is FALSE. Some other targets do not
670 include the position of the location; for example, m88kbcs,
671 or ELF. For those targets, pcrel_offset is TRUE.
672
673 If we are producing relocatable output, then we must ensure
674 that this reloc will be correctly computed when the final
675 relocation is done. If pcrel_offset is FALSE we want to wind
676 up with the negative of the location within the section,
677 which means we must adjust the existing addend by the change
678 in the location within the section. If pcrel_offset is TRUE
679 we do not want to adjust the existing addend at all.
680
681 FIXME: This seems logical to me, but for the case of
682 producing relocatable output it is not what the code
683 actually does. I don't want to change it, because it seems
684 far too likely that something will break. */
685
686 relocation -=
687 input_section->output_section->vma + input_section->output_offset;
688
689 if (howto->pcrel_offset)
690 relocation -= reloc_entry->address;
691 }
692
693 if (output_bfd != NULL)
694 {
695 if (! howto->partial_inplace)
696 {
697 /* This is a partial relocation, and we want to apply the relocation
698 to the reloc entry rather than the raw data. Modify the reloc
699 inplace to reflect what we now know. */
700 reloc_entry->addend = relocation;
701 reloc_entry->address += input_section->output_offset;
702 return flag;
703 }
704 else
705 {
706 /* This is a partial relocation, but inplace, so modify the
707 reloc record a bit.
708
709 If we've relocated with a symbol with a section, change
710 into a ref to the section belonging to the symbol. */
711
712 reloc_entry->address += input_section->output_offset;
713
714 /* WTF?? */
715 if (abfd->xvec->flavour == bfd_target_coff_flavour
716 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
717 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
718 {
719 #if 1
720 /* For m68k-coff, the addend was being subtracted twice during
721 relocation with -r. Removing the line below this comment
722 fixes that problem; see PR 2953.
723
724 However, Ian wrote the following, regarding removing the line below,
725 which explains why it is still enabled: --djm
726
727 If you put a patch like that into BFD you need to check all the COFF
728 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
729 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
730 problem in a different way. There may very well be a reason that the
731 code works as it does.
732
733 Hmmm. The first obvious point is that bfd_perform_relocation should
734 not have any tests that depend upon the flavour. It's seem like
735 entirely the wrong place for such a thing. The second obvious point
736 is that the current code ignores the reloc addend when producing
737 relocatable output for COFF. That's peculiar. In fact, I really
738 have no idea what the point of the line you want to remove is.
739
740 A typical COFF reloc subtracts the old value of the symbol and adds in
741 the new value to the location in the object file (if it's a pc
742 relative reloc it adds the difference between the symbol value and the
743 location). When relocating we need to preserve that property.
744
745 BFD handles this by setting the addend to the negative of the old
746 value of the symbol. Unfortunately it handles common symbols in a
747 non-standard way (it doesn't subtract the old value) but that's a
748 different story (we can't change it without losing backward
749 compatibility with old object files) (coff-i386 does subtract the old
750 value, to be compatible with existing coff-i386 targets, like SCO).
751
752 So everything works fine when not producing relocatable output. When
753 we are producing relocatable output, logically we should do exactly
754 what we do when not producing relocatable output. Therefore, your
755 patch is correct. In fact, it should probably always just set
756 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
757 add the value into the object file. This won't hurt the COFF code,
758 which doesn't use the addend; I'm not sure what it will do to other
759 formats (the thing to check for would be whether any formats both use
760 the addend and set partial_inplace).
761
762 When I wanted to make coff-i386 produce relocatable output, I ran
763 into the problem that you are running into: I wanted to remove that
764 line. Rather than risk it, I made the coff-i386 relocs use a special
765 function; it's coff_i386_reloc in coff-i386.c. The function
766 specifically adds the addend field into the object file, knowing that
767 bfd_perform_relocation is not going to. If you remove that line, then
768 coff-i386.c will wind up adding the addend field in twice. It's
769 trivial to fix; it just needs to be done.
770
771 The problem with removing the line is just that it may break some
772 working code. With BFD it's hard to be sure of anything. The right
773 way to deal with this is simply to build and test at least all the
774 supported COFF targets. It should be straightforward if time and disk
775 space consuming. For each target:
776 1) build the linker
777 2) generate some executable, and link it using -r (I would
778 probably use paranoia.o and link against newlib/libc.a, which
779 for all the supported targets would be available in
780 /usr/cygnus/progressive/H-host/target/lib/libc.a).
781 3) make the change to reloc.c
782 4) rebuild the linker
783 5) repeat step 2
784 6) if the resulting object files are the same, you have at least
785 made it no worse
786 7) if they are different you have to figure out which version is
787 right
788 */
789 relocation -= reloc_entry->addend;
790 #endif
791 reloc_entry->addend = 0;
792 }
793 else
794 {
795 reloc_entry->addend = relocation;
796 }
797 }
798 }
799 else
800 {
801 reloc_entry->addend = 0;
802 }
803
804 /* FIXME: This overflow checking is incomplete, because the value
805 might have overflowed before we get here. For a correct check we
806 need to compute the value in a size larger than bitsize, but we
807 can't reasonably do that for a reloc the same size as a host
808 machine word.
809 FIXME: We should also do overflow checking on the result after
810 adding in the value contained in the object file. */
811 if (howto->complain_on_overflow != complain_overflow_dont
812 && flag == bfd_reloc_ok)
813 flag = bfd_check_overflow (howto->complain_on_overflow,
814 howto->bitsize,
815 howto->rightshift,
816 bfd_arch_bits_per_address (abfd),
817 relocation);
818
819 /* Either we are relocating all the way, or we don't want to apply
820 the relocation to the reloc entry (probably because there isn't
821 any room in the output format to describe addends to relocs). */
822
823 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
824 (OSF version 1.3, compiler version 3.11). It miscompiles the
825 following program:
826
827 struct str
828 {
829 unsigned int i0;
830 } s = { 0 };
831
832 int
833 main ()
834 {
835 unsigned long x;
836
837 x = 0x100000000;
838 x <<= (unsigned long) s.i0;
839 if (x == 0)
840 printf ("failed\n");
841 else
842 printf ("succeeded (%lx)\n", x);
843 }
844 */
845
846 relocation >>= (bfd_vma) howto->rightshift;
847
848 /* Shift everything up to where it's going to be used. */
849 relocation <<= (bfd_vma) howto->bitpos;
850
851 /* Wait for the day when all have the mask in them. */
852
853 /* What we do:
854 i instruction to be left alone
855 o offset within instruction
856 r relocation offset to apply
857 S src mask
858 D dst mask
859 N ~dst mask
860 A part 1
861 B part 2
862 R result
863
864 Do this:
865 (( i i i i i o o o o o from bfd_get<size>
866 and S S S S S) to get the size offset we want
867 + r r r r r r r r r r) to get the final value to place
868 and D D D D D to chop to right size
869 -----------------------
870 = A A A A A
871 And this:
872 ( i i i i i o o o o o from bfd_get<size>
873 and N N N N N ) get instruction
874 -----------------------
875 = B B B B B
876
877 And then:
878 ( B B B B B
879 or A A A A A)
880 -----------------------
881 = R R R R R R R R R R put into bfd_put<size>
882 */
883
884 #define DOIT(x) \
885 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
886
887 switch (howto->size)
888 {
889 case 0:
890 {
891 char x = bfd_get_8 (abfd, (char *) data + octets);
892 DOIT (x);
893 bfd_put_8 (abfd, x, (unsigned char *) data + octets);
894 }
895 break;
896
897 case 1:
898 {
899 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
900 DOIT (x);
901 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
902 }
903 break;
904 case 2:
905 {
906 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
907 DOIT (x);
908 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
909 }
910 break;
911 case -2:
912 {
913 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
914 relocation = -relocation;
915 DOIT (x);
916 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
917 }
918 break;
919
920 case -1:
921 {
922 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
923 relocation = -relocation;
924 DOIT (x);
925 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
926 }
927 break;
928
929 case 3:
930 /* Do nothing */
931 break;
932
933 case 4:
934 #ifdef BFD64
935 {
936 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
937 DOIT (x);
938 bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
939 }
940 #else
941 abort ();
942 #endif
943 break;
944 default:
945 return bfd_reloc_other;
946 }
947
948 return flag;
949 }
950
951 /*
952 FUNCTION
953 bfd_install_relocation
954
955 SYNOPSIS
956 bfd_reloc_status_type bfd_install_relocation
957 (bfd *abfd,
958 arelent *reloc_entry,
959 void *data, bfd_vma data_start,
960 asection *input_section,
961 char **error_message);
962
963 DESCRIPTION
964 This looks remarkably like <<bfd_perform_relocation>>, except it
965 does not expect that the section contents have been filled in.
966 I.e., it's suitable for use when creating, rather than applying
967 a relocation.
968
969 For now, this function should be considered reserved for the
970 assembler.
971 */
972
973 bfd_reloc_status_type
974 bfd_install_relocation (bfd *abfd,
975 arelent *reloc_entry,
976 void *data_start,
977 bfd_vma data_start_offset,
978 asection *input_section,
979 char **error_message)
980 {
981 bfd_vma relocation;
982 bfd_reloc_status_type flag = bfd_reloc_ok;
983 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
984 bfd_vma output_base = 0;
985 reloc_howto_type *howto = reloc_entry->howto;
986 asection *reloc_target_output_section;
987 asymbol *symbol;
988 bfd_byte *data;
989
990 symbol = *(reloc_entry->sym_ptr_ptr);
991 if (bfd_is_abs_section (symbol->section))
992 {
993 reloc_entry->address += input_section->output_offset;
994 return bfd_reloc_ok;
995 }
996
997 /* If there is a function supplied to handle this relocation type,
998 call it. It'll return `bfd_reloc_continue' if further processing
999 can be done. */
1000 if (howto->special_function)
1001 {
1002 bfd_reloc_status_type cont;
1003
1004 /* XXX - The special_function calls haven't been fixed up to deal
1005 with creating new relocations and section contents. */
1006 cont = howto->special_function (abfd, reloc_entry, symbol,
1007 /* XXX - Non-portable! */
1008 ((bfd_byte *) data_start
1009 - data_start_offset),
1010 input_section, abfd, error_message);
1011 if (cont != bfd_reloc_continue)
1012 return cont;
1013 }
1014
1015 /* Is the address of the relocation really within the section? */
1016 if (reloc_entry->address > (input_section->_cooked_size
1017 / bfd_octets_per_byte (abfd)))
1018 return bfd_reloc_outofrange;
1019
1020 /* Work out which section the relocation is targeted at and the
1021 initial relocation command value. */
1022
1023 /* Get symbol value. (Common symbols are special.) */
1024 if (bfd_is_com_section (symbol->section))
1025 relocation = 0;
1026 else
1027 relocation = symbol->value;
1028
1029 reloc_target_output_section = symbol->section->output_section;
1030
1031 /* Convert input-section-relative symbol value to absolute. */
1032 if (! howto->partial_inplace)
1033 output_base = 0;
1034 else
1035 output_base = reloc_target_output_section->vma;
1036
1037 relocation += output_base + symbol->section->output_offset;
1038
1039 /* Add in supplied addend. */
1040 relocation += reloc_entry->addend;
1041
1042 /* Here the variable relocation holds the final address of the
1043 symbol we are relocating against, plus any addend. */
1044
1045 if (howto->pc_relative)
1046 {
1047 /* This is a PC relative relocation. We want to set RELOCATION
1048 to the distance between the address of the symbol and the
1049 location. RELOCATION is already the address of the symbol.
1050
1051 We start by subtracting the address of the section containing
1052 the location.
1053
1054 If pcrel_offset is set, we must further subtract the position
1055 of the location within the section. Some targets arrange for
1056 the addend to be the negative of the position of the location
1057 within the section; for example, i386-aout does this. For
1058 i386-aout, pcrel_offset is FALSE. Some other targets do not
1059 include the position of the location; for example, m88kbcs,
1060 or ELF. For those targets, pcrel_offset is TRUE.
1061
1062 If we are producing relocatable output, then we must ensure
1063 that this reloc will be correctly computed when the final
1064 relocation is done. If pcrel_offset is FALSE we want to wind
1065 up with the negative of the location within the section,
1066 which means we must adjust the existing addend by the change
1067 in the location within the section. If pcrel_offset is TRUE
1068 we do not want to adjust the existing addend at all.
1069
1070 FIXME: This seems logical to me, but for the case of
1071 producing relocatable output it is not what the code
1072 actually does. I don't want to change it, because it seems
1073 far too likely that something will break. */
1074
1075 relocation -=
1076 input_section->output_section->vma + input_section->output_offset;
1077
1078 if (howto->pcrel_offset && howto->partial_inplace)
1079 relocation -= reloc_entry->address;
1080 }
1081
1082 if (! howto->partial_inplace)
1083 {
1084 /* This is a partial relocation, and we want to apply the relocation
1085 to the reloc entry rather than the raw data. Modify the reloc
1086 inplace to reflect what we now know. */
1087 reloc_entry->addend = relocation;
1088 reloc_entry->address += input_section->output_offset;
1089 return flag;
1090 }
1091 else
1092 {
1093 /* This is a partial relocation, but inplace, so modify the
1094 reloc record a bit.
1095
1096 If we've relocated with a symbol with a section, change
1097 into a ref to the section belonging to the symbol. */
1098 reloc_entry->address += input_section->output_offset;
1099
1100 /* WTF?? */
1101 if (abfd->xvec->flavour == bfd_target_coff_flavour
1102 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1103 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1104 {
1105 #if 1
1106 /* For m68k-coff, the addend was being subtracted twice during
1107 relocation with -r. Removing the line below this comment
1108 fixes that problem; see PR 2953.
1109
1110 However, Ian wrote the following, regarding removing the line below,
1111 which explains why it is still enabled: --djm
1112
1113 If you put a patch like that into BFD you need to check all the COFF
1114 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
1115 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1116 problem in a different way. There may very well be a reason that the
1117 code works as it does.
1118
1119 Hmmm. The first obvious point is that bfd_install_relocation should
1120 not have any tests that depend upon the flavour. It's seem like
1121 entirely the wrong place for such a thing. The second obvious point
1122 is that the current code ignores the reloc addend when producing
1123 relocatable output for COFF. That's peculiar. In fact, I really
1124 have no idea what the point of the line you want to remove is.
1125
1126 A typical COFF reloc subtracts the old value of the symbol and adds in
1127 the new value to the location in the object file (if it's a pc
1128 relative reloc it adds the difference between the symbol value and the
1129 location). When relocating we need to preserve that property.
1130
1131 BFD handles this by setting the addend to the negative of the old
1132 value of the symbol. Unfortunately it handles common symbols in a
1133 non-standard way (it doesn't subtract the old value) but that's a
1134 different story (we can't change it without losing backward
1135 compatibility with old object files) (coff-i386 does subtract the old
1136 value, to be compatible with existing coff-i386 targets, like SCO).
1137
1138 So everything works fine when not producing relocatable output. When
1139 we are producing relocatable output, logically we should do exactly
1140 what we do when not producing relocatable output. Therefore, your
1141 patch is correct. In fact, it should probably always just set
1142 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1143 add the value into the object file. This won't hurt the COFF code,
1144 which doesn't use the addend; I'm not sure what it will do to other
1145 formats (the thing to check for would be whether any formats both use
1146 the addend and set partial_inplace).
1147
1148 When I wanted to make coff-i386 produce relocatable output, I ran
1149 into the problem that you are running into: I wanted to remove that
1150 line. Rather than risk it, I made the coff-i386 relocs use a special
1151 function; it's coff_i386_reloc in coff-i386.c. The function
1152 specifically adds the addend field into the object file, knowing that
1153 bfd_install_relocation is not going to. If you remove that line, then
1154 coff-i386.c will wind up adding the addend field in twice. It's
1155 trivial to fix; it just needs to be done.
1156
1157 The problem with removing the line is just that it may break some
1158 working code. With BFD it's hard to be sure of anything. The right
1159 way to deal with this is simply to build and test at least all the
1160 supported COFF targets. It should be straightforward if time and disk
1161 space consuming. For each target:
1162 1) build the linker
1163 2) generate some executable, and link it using -r (I would
1164 probably use paranoia.o and link against newlib/libc.a, which
1165 for all the supported targets would be available in
1166 /usr/cygnus/progressive/H-host/target/lib/libc.a).
1167 3) make the change to reloc.c
1168 4) rebuild the linker
1169 5) repeat step 2
1170 6) if the resulting object files are the same, you have at least
1171 made it no worse
1172 7) if they are different you have to figure out which version is
1173 right. */
1174 relocation -= reloc_entry->addend;
1175 #endif
1176 reloc_entry->addend = 0;
1177 }
1178 else
1179 {
1180 reloc_entry->addend = relocation;
1181 }
1182 }
1183
1184 /* FIXME: This overflow checking is incomplete, because the value
1185 might have overflowed before we get here. For a correct check we
1186 need to compute the value in a size larger than bitsize, but we
1187 can't reasonably do that for a reloc the same size as a host
1188 machine word.
1189 FIXME: We should also do overflow checking on the result after
1190 adding in the value contained in the object file. */
1191 if (howto->complain_on_overflow != complain_overflow_dont)
1192 flag = bfd_check_overflow (howto->complain_on_overflow,
1193 howto->bitsize,
1194 howto->rightshift,
1195 bfd_arch_bits_per_address (abfd),
1196 relocation);
1197
1198 /* Either we are relocating all the way, or we don't want to apply
1199 the relocation to the reloc entry (probably because there isn't
1200 any room in the output format to describe addends to relocs). */
1201
1202 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1203 (OSF version 1.3, compiler version 3.11). It miscompiles the
1204 following program:
1205
1206 struct str
1207 {
1208 unsigned int i0;
1209 } s = { 0 };
1210
1211 int
1212 main ()
1213 {
1214 unsigned long x;
1215
1216 x = 0x100000000;
1217 x <<= (unsigned long) s.i0;
1218 if (x == 0)
1219 printf ("failed\n");
1220 else
1221 printf ("succeeded (%lx)\n", x);
1222 }
1223 */
1224
1225 relocation >>= (bfd_vma) howto->rightshift;
1226
1227 /* Shift everything up to where it's going to be used. */
1228 relocation <<= (bfd_vma) howto->bitpos;
1229
1230 /* Wait for the day when all have the mask in them. */
1231
1232 /* What we do:
1233 i instruction to be left alone
1234 o offset within instruction
1235 r relocation offset to apply
1236 S src mask
1237 D dst mask
1238 N ~dst mask
1239 A part 1
1240 B part 2
1241 R result
1242
1243 Do this:
1244 (( i i i i i o o o o o from bfd_get<size>
1245 and S S S S S) to get the size offset we want
1246 + r r r r r r r r r r) to get the final value to place
1247 and D D D D D to chop to right size
1248 -----------------------
1249 = A A A A A
1250 And this:
1251 ( i i i i i o o o o o from bfd_get<size>
1252 and N N N N N ) get instruction
1253 -----------------------
1254 = B B B B B
1255
1256 And then:
1257 ( B B B B B
1258 or A A A A A)
1259 -----------------------
1260 = R R R R R R R R R R put into bfd_put<size>
1261 */
1262
1263 #define DOIT(x) \
1264 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
1265
1266 data = (bfd_byte *) data_start + (octets - data_start_offset);
1267
1268 switch (howto->size)
1269 {
1270 case 0:
1271 {
1272 char x = bfd_get_8 (abfd, data);
1273 DOIT (x);
1274 bfd_put_8 (abfd, x, data);
1275 }
1276 break;
1277
1278 case 1:
1279 {
1280 short x = bfd_get_16 (abfd, data);
1281 DOIT (x);
1282 bfd_put_16 (abfd, (bfd_vma) x, data);
1283 }
1284 break;
1285 case 2:
1286 {
1287 long x = bfd_get_32 (abfd, data);
1288 DOIT (x);
1289 bfd_put_32 (abfd, (bfd_vma) x, data);
1290 }
1291 break;
1292 case -2:
1293 {
1294 long x = bfd_get_32 (abfd, data);
1295 relocation = -relocation;
1296 DOIT (x);
1297 bfd_put_32 (abfd, (bfd_vma) x, data);
1298 }
1299 break;
1300
1301 case 3:
1302 /* Do nothing */
1303 break;
1304
1305 case 4:
1306 {
1307 bfd_vma x = bfd_get_64 (abfd, data);
1308 DOIT (x);
1309 bfd_put_64 (abfd, x, data);
1310 }
1311 break;
1312 default:
1313 return bfd_reloc_other;
1314 }
1315
1316 return flag;
1317 }
1318
1319 /* This relocation routine is used by some of the backend linkers.
1320 They do not construct asymbol or arelent structures, so there is no
1321 reason for them to use bfd_perform_relocation. Also,
1322 bfd_perform_relocation is so hacked up it is easier to write a new
1323 function than to try to deal with it.
1324
1325 This routine does a final relocation. Whether it is useful for a
1326 relocatable link depends upon how the object format defines
1327 relocations.
1328
1329 FIXME: This routine ignores any special_function in the HOWTO,
1330 since the existing special_function values have been written for
1331 bfd_perform_relocation.
1332
1333 HOWTO is the reloc howto information.
1334 INPUT_BFD is the BFD which the reloc applies to.
1335 INPUT_SECTION is the section which the reloc applies to.
1336 CONTENTS is the contents of the section.
1337 ADDRESS is the address of the reloc within INPUT_SECTION.
1338 VALUE is the value of the symbol the reloc refers to.
1339 ADDEND is the addend of the reloc. */
1340
1341 bfd_reloc_status_type
1342 _bfd_final_link_relocate (reloc_howto_type *howto,
1343 bfd *input_bfd,
1344 asection *input_section,
1345 bfd_byte *contents,
1346 bfd_vma address,
1347 bfd_vma value,
1348 bfd_vma addend)
1349 {
1350 bfd_vma relocation;
1351
1352 /* Sanity check the address. */
1353 if (address > input_section->_raw_size)
1354 return bfd_reloc_outofrange;
1355
1356 /* This function assumes that we are dealing with a basic relocation
1357 against a symbol. We want to compute the value of the symbol to
1358 relocate to. This is just VALUE, the value of the symbol, plus
1359 ADDEND, any addend associated with the reloc. */
1360 relocation = value + addend;
1361
1362 /* If the relocation is PC relative, we want to set RELOCATION to
1363 the distance between the symbol (currently in RELOCATION) and the
1364 location we are relocating. Some targets (e.g., i386-aout)
1365 arrange for the contents of the section to be the negative of the
1366 offset of the location within the section; for such targets
1367 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
1368 simply leave the contents of the section as zero; for such
1369 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
1370 need to subtract out the offset of the location within the
1371 section (which is just ADDRESS). */
1372 if (howto->pc_relative)
1373 {
1374 relocation -= (input_section->output_section->vma
1375 + input_section->output_offset);
1376 if (howto->pcrel_offset)
1377 relocation -= address;
1378 }
1379
1380 return _bfd_relocate_contents (howto, input_bfd, relocation,
1381 contents + address);
1382 }
1383
1384 /* Relocate a given location using a given value and howto. */
1385
1386 bfd_reloc_status_type
1387 _bfd_relocate_contents (reloc_howto_type *howto,
1388 bfd *input_bfd,
1389 bfd_vma relocation,
1390 bfd_byte *location)
1391 {
1392 int size;
1393 bfd_vma x = 0;
1394 bfd_reloc_status_type flag;
1395 unsigned int rightshift = howto->rightshift;
1396 unsigned int bitpos = howto->bitpos;
1397
1398 /* If the size is negative, negate RELOCATION. This isn't very
1399 general. */
1400 if (howto->size < 0)
1401 relocation = -relocation;
1402
1403 /* Get the value we are going to relocate. */
1404 size = bfd_get_reloc_size (howto);
1405 switch (size)
1406 {
1407 default:
1408 case 0:
1409 abort ();
1410 case 1:
1411 x = bfd_get_8 (input_bfd, location);
1412 break;
1413 case 2:
1414 x = bfd_get_16 (input_bfd, location);
1415 break;
1416 case 4:
1417 x = bfd_get_32 (input_bfd, location);
1418 break;
1419 case 8:
1420 #ifdef BFD64
1421 x = bfd_get_64 (input_bfd, location);
1422 #else
1423 abort ();
1424 #endif
1425 break;
1426 }
1427
1428 /* Check for overflow. FIXME: We may drop bits during the addition
1429 which we don't check for. We must either check at every single
1430 operation, which would be tedious, or we must do the computations
1431 in a type larger than bfd_vma, which would be inefficient. */
1432 flag = bfd_reloc_ok;
1433 if (howto->complain_on_overflow != complain_overflow_dont)
1434 {
1435 bfd_vma addrmask, fieldmask, signmask, ss;
1436 bfd_vma a, b, sum;
1437
1438 /* Get the values to be added together. For signed and unsigned
1439 relocations, we assume that all values should be truncated to
1440 the size of an address. For bitfields, all the bits matter.
1441 See also bfd_check_overflow. */
1442 fieldmask = N_ONES (howto->bitsize);
1443 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1444 a = relocation;
1445 b = x & howto->src_mask;
1446
1447 switch (howto->complain_on_overflow)
1448 {
1449 case complain_overflow_signed:
1450 a = (a & addrmask) >> rightshift;
1451
1452 /* If any sign bits are set, all sign bits must be set.
1453 That is, A must be a valid negative address after
1454 shifting. */
1455 signmask = ~ (fieldmask >> 1);
1456 ss = a & signmask;
1457 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
1458 flag = bfd_reloc_overflow;
1459
1460 /* We only need this next bit of code if the sign bit of B
1461 is below the sign bit of A. This would only happen if
1462 SRC_MASK had fewer bits than BITSIZE. Note that if
1463 SRC_MASK has more bits than BITSIZE, we can get into
1464 trouble; we would need to verify that B is in range, as
1465 we do for A above. */
1466 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1467
1468 /* Set all the bits above the sign bit. */
1469 b = (b ^ signmask) - signmask;
1470
1471 b = (b & addrmask) >> bitpos;
1472
1473 /* Now we can do the addition. */
1474 sum = a + b;
1475
1476 /* See if the result has the correct sign. Bits above the
1477 sign bit are junk now; ignore them. If the sum is
1478 positive, make sure we did not have all negative inputs;
1479 if the sum is negative, make sure we did not have all
1480 positive inputs. The test below looks only at the sign
1481 bits, and it really just
1482 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1483 */
1484 signmask = (fieldmask >> 1) + 1;
1485 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
1486 flag = bfd_reloc_overflow;
1487
1488 break;
1489
1490 case complain_overflow_unsigned:
1491 /* Checking for an unsigned overflow is relatively easy:
1492 trim the addresses and add, and trim the result as well.
1493 Overflow is normally indicated when the result does not
1494 fit in the field. However, we also need to consider the
1495 case when, e.g., fieldmask is 0x7fffffff or smaller, an
1496 input is 0x80000000, and bfd_vma is only 32 bits; then we
1497 will get sum == 0, but there is an overflow, since the
1498 inputs did not fit in the field. Instead of doing a
1499 separate test, we can check for this by or-ing in the
1500 operands when testing for the sum overflowing its final
1501 field. */
1502 a = (a & addrmask) >> rightshift;
1503 b = (b & addrmask) >> bitpos;
1504 sum = (a + b) & addrmask;
1505 if ((a | b | sum) & ~ fieldmask)
1506 flag = bfd_reloc_overflow;
1507
1508 break;
1509
1510 case complain_overflow_bitfield:
1511 /* Much like the signed check, but for a field one bit
1512 wider, and no trimming inputs with addrmask. We allow a
1513 bitfield to represent numbers in the range -2**n to
1514 2**n-1, where n is the number of bits in the field.
1515 Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1516 overflow, which is exactly what we want. */
1517 a >>= rightshift;
1518
1519 signmask = ~ fieldmask;
1520 ss = a & signmask;
1521 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1522 flag = bfd_reloc_overflow;
1523
1524 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1525 b = (b ^ signmask) - signmask;
1526
1527 b >>= bitpos;
1528
1529 sum = a + b;
1530
1531 /* We mask with addrmask here to explicitly allow an address
1532 wrap-around. The Linux kernel relies on it, and it is
1533 the only way to write assembler code which can run when
1534 loaded at a location 0x80000000 away from the location at
1535 which it is linked. */
1536 signmask = fieldmask + 1;
1537 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
1538 flag = bfd_reloc_overflow;
1539
1540 break;
1541
1542 default:
1543 abort ();
1544 }
1545 }
1546
1547 /* Put RELOCATION in the right bits. */
1548 relocation >>= (bfd_vma) rightshift;
1549 relocation <<= (bfd_vma) bitpos;
1550
1551 /* Add RELOCATION to the right bits of X. */
1552 x = ((x & ~howto->dst_mask)
1553 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1554
1555 /* Put the relocated value back in the object file. */
1556 switch (size)
1557 {
1558 default:
1559 case 0:
1560 abort ();
1561 case 1:
1562 bfd_put_8 (input_bfd, x, location);
1563 break;
1564 case 2:
1565 bfd_put_16 (input_bfd, x, location);
1566 break;
1567 case 4:
1568 bfd_put_32 (input_bfd, x, location);
1569 break;
1570 case 8:
1571 #ifdef BFD64
1572 bfd_put_64 (input_bfd, x, location);
1573 #else
1574 abort ();
1575 #endif
1576 break;
1577 }
1578
1579 return flag;
1580 }
1581
1582 /*
1583 DOCDD
1584 INODE
1585 howto manager, , typedef arelent, Relocations
1586
1587 SECTION
1588 The howto manager
1589
1590 When an application wants to create a relocation, but doesn't
1591 know what the target machine might call it, it can find out by
1592 using this bit of code.
1593
1594 */
1595
1596 /*
1597 TYPEDEF
1598 bfd_reloc_code_type
1599
1600 DESCRIPTION
1601 The insides of a reloc code. The idea is that, eventually, there
1602 will be one enumerator for every type of relocation we ever do.
1603 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1604 return a howto pointer.
1605
1606 This does mean that the application must determine the correct
1607 enumerator value; you can't get a howto pointer from a random set
1608 of attributes.
1609
1610 SENUM
1611 bfd_reloc_code_real
1612
1613 ENUM
1614 BFD_RELOC_64
1615 ENUMX
1616 BFD_RELOC_32
1617 ENUMX
1618 BFD_RELOC_26
1619 ENUMX
1620 BFD_RELOC_24
1621 ENUMX
1622 BFD_RELOC_16
1623 ENUMX
1624 BFD_RELOC_14
1625 ENUMX
1626 BFD_RELOC_8
1627 ENUMDOC
1628 Basic absolute relocations of N bits.
1629
1630 ENUM
1631 BFD_RELOC_64_PCREL
1632 ENUMX
1633 BFD_RELOC_32_PCREL
1634 ENUMX
1635 BFD_RELOC_24_PCREL
1636 ENUMX
1637 BFD_RELOC_16_PCREL
1638 ENUMX
1639 BFD_RELOC_12_PCREL
1640 ENUMX
1641 BFD_RELOC_8_PCREL
1642 ENUMDOC
1643 PC-relative relocations. Sometimes these are relative to the address
1644 of the relocation itself; sometimes they are relative to the start of
1645 the section containing the relocation. It depends on the specific target.
1646
1647 The 24-bit relocation is used in some Intel 960 configurations.
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 ENUM
2065 BFD_RELOC_PCREL_HI16_S
2066 ENUMDOC
2067 Like BFD_RELOC_HI16_S, but PC relative.
2068 ENUM
2069 BFD_RELOC_PCREL_LO16
2070 ENUMDOC
2071 Like BFD_RELOC_LO16, but PC relative.
2072
2073 ENUM
2074 BFD_RELOC_MIPS_LITERAL
2075 ENUMDOC
2076 Relocation against a MIPS literal section.
2077
2078 ENUM
2079 BFD_RELOC_MIPS_GOT16
2080 ENUMX
2081 BFD_RELOC_MIPS_CALL16
2082 ENUMX
2083 BFD_RELOC_MIPS_GOT_HI16
2084 ENUMX
2085 BFD_RELOC_MIPS_GOT_LO16
2086 ENUMX
2087 BFD_RELOC_MIPS_CALL_HI16
2088 ENUMX
2089 BFD_RELOC_MIPS_CALL_LO16
2090 ENUMX
2091 BFD_RELOC_MIPS_SUB
2092 ENUMX
2093 BFD_RELOC_MIPS_GOT_PAGE
2094 ENUMX
2095 BFD_RELOC_MIPS_GOT_OFST
2096 ENUMX
2097 BFD_RELOC_MIPS_GOT_DISP
2098 ENUMX
2099 BFD_RELOC_MIPS_SHIFT5
2100 ENUMX
2101 BFD_RELOC_MIPS_SHIFT6
2102 ENUMX
2103 BFD_RELOC_MIPS_INSERT_A
2104 ENUMX
2105 BFD_RELOC_MIPS_INSERT_B
2106 ENUMX
2107 BFD_RELOC_MIPS_DELETE
2108 ENUMX
2109 BFD_RELOC_MIPS_HIGHEST
2110 ENUMX
2111 BFD_RELOC_MIPS_HIGHER
2112 ENUMX
2113 BFD_RELOC_MIPS_SCN_DISP
2114 ENUMX
2115 BFD_RELOC_MIPS_REL16
2116 ENUMX
2117 BFD_RELOC_MIPS_RELGOT
2118 ENUMX
2119 BFD_RELOC_MIPS_JALR
2120 ENUMDOC
2121 MIPS ELF relocations.
2122 COMMENT
2123
2124 ENUM
2125 BFD_RELOC_FRV_LABEL16
2126 ENUMX
2127 BFD_RELOC_FRV_LABEL24
2128 ENUMX
2129 BFD_RELOC_FRV_LO16
2130 ENUMX
2131 BFD_RELOC_FRV_HI16
2132 ENUMX
2133 BFD_RELOC_FRV_GPREL12
2134 ENUMX
2135 BFD_RELOC_FRV_GPRELU12
2136 ENUMX
2137 BFD_RELOC_FRV_GPREL32
2138 ENUMX
2139 BFD_RELOC_FRV_GPRELHI
2140 ENUMX
2141 BFD_RELOC_FRV_GPRELLO
2142 ENUMX
2143 BFD_RELOC_FRV_GOT12
2144 ENUMX
2145 BFD_RELOC_FRV_GOTHI
2146 ENUMX
2147 BFD_RELOC_FRV_GOTLO
2148 ENUMX
2149 BFD_RELOC_FRV_FUNCDESC
2150 ENUMX
2151 BFD_RELOC_FRV_FUNCDESC_GOT12
2152 ENUMX
2153 BFD_RELOC_FRV_FUNCDESC_GOTHI
2154 ENUMX
2155 BFD_RELOC_FRV_FUNCDESC_GOTLO
2156 ENUMX
2157 BFD_RELOC_FRV_FUNCDESC_VALUE
2158 ENUMX
2159 BFD_RELOC_FRV_FUNCDESC_GOTOFF12
2160 ENUMX
2161 BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
2162 ENUMX
2163 BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
2164 ENUMX
2165 BFD_RELOC_FRV_GOTOFF12
2166 ENUMX
2167 BFD_RELOC_FRV_GOTOFFHI
2168 ENUMX
2169 BFD_RELOC_FRV_GOTOFFLO
2170 ENUMDOC
2171 Fujitsu Frv Relocations.
2172 COMMENT
2173
2174 ENUM
2175 BFD_RELOC_MN10300_GOTOFF24
2176 ENUMDOC
2177 This is a 24bit GOT-relative reloc for the mn10300.
2178 ENUM
2179 BFD_RELOC_MN10300_GOT32
2180 ENUMDOC
2181 This is a 32bit GOT-relative reloc for the mn10300, offset by two bytes
2182 in the instruction.
2183 ENUM
2184 BFD_RELOC_MN10300_GOT24
2185 ENUMDOC
2186 This is a 24bit GOT-relative reloc for the mn10300, offset by two bytes
2187 in the instruction.
2188 ENUM
2189 BFD_RELOC_MN10300_GOT16
2190 ENUMDOC
2191 This is a 16bit GOT-relative reloc for the mn10300, offset by two bytes
2192 in the instruction.
2193 ENUM
2194 BFD_RELOC_MN10300_COPY
2195 ENUMDOC
2196 Copy symbol at runtime.
2197 ENUM
2198 BFD_RELOC_MN10300_GLOB_DAT
2199 ENUMDOC
2200 Create GOT entry.
2201 ENUM
2202 BFD_RELOC_MN10300_JMP_SLOT
2203 ENUMDOC
2204 Create PLT entry.
2205 ENUM
2206 BFD_RELOC_MN10300_RELATIVE
2207 ENUMDOC
2208 Adjust by program base.
2209 COMMENT
2210
2211 ENUM
2212 BFD_RELOC_386_GOT32
2213 ENUMX
2214 BFD_RELOC_386_PLT32
2215 ENUMX
2216 BFD_RELOC_386_COPY
2217 ENUMX
2218 BFD_RELOC_386_GLOB_DAT
2219 ENUMX
2220 BFD_RELOC_386_JUMP_SLOT
2221 ENUMX
2222 BFD_RELOC_386_RELATIVE
2223 ENUMX
2224 BFD_RELOC_386_GOTOFF
2225 ENUMX
2226 BFD_RELOC_386_GOTPC
2227 ENUMX
2228 BFD_RELOC_386_TLS_TPOFF
2229 ENUMX
2230 BFD_RELOC_386_TLS_IE
2231 ENUMX
2232 BFD_RELOC_386_TLS_GOTIE
2233 ENUMX
2234 BFD_RELOC_386_TLS_LE
2235 ENUMX
2236 BFD_RELOC_386_TLS_GD
2237 ENUMX
2238 BFD_RELOC_386_TLS_LDM
2239 ENUMX
2240 BFD_RELOC_386_TLS_LDO_32
2241 ENUMX
2242 BFD_RELOC_386_TLS_IE_32
2243 ENUMX
2244 BFD_RELOC_386_TLS_LE_32
2245 ENUMX
2246 BFD_RELOC_386_TLS_DTPMOD32
2247 ENUMX
2248 BFD_RELOC_386_TLS_DTPOFF32
2249 ENUMX
2250 BFD_RELOC_386_TLS_TPOFF32
2251 ENUMDOC
2252 i386/elf relocations
2253
2254 ENUM
2255 BFD_RELOC_X86_64_GOT32
2256 ENUMX
2257 BFD_RELOC_X86_64_PLT32
2258 ENUMX
2259 BFD_RELOC_X86_64_COPY
2260 ENUMX
2261 BFD_RELOC_X86_64_GLOB_DAT
2262 ENUMX
2263 BFD_RELOC_X86_64_JUMP_SLOT
2264 ENUMX
2265 BFD_RELOC_X86_64_RELATIVE
2266 ENUMX
2267 BFD_RELOC_X86_64_GOTPCREL
2268 ENUMX
2269 BFD_RELOC_X86_64_32S
2270 ENUMX
2271 BFD_RELOC_X86_64_DTPMOD64
2272 ENUMX
2273 BFD_RELOC_X86_64_DTPOFF64
2274 ENUMX
2275 BFD_RELOC_X86_64_TPOFF64
2276 ENUMX
2277 BFD_RELOC_X86_64_TLSGD
2278 ENUMX
2279 BFD_RELOC_X86_64_TLSLD
2280 ENUMX
2281 BFD_RELOC_X86_64_DTPOFF32
2282 ENUMX
2283 BFD_RELOC_X86_64_GOTTPOFF
2284 ENUMX
2285 BFD_RELOC_X86_64_TPOFF32
2286 ENUMDOC
2287 x86-64/elf relocations
2288
2289 ENUM
2290 BFD_RELOC_NS32K_IMM_8
2291 ENUMX
2292 BFD_RELOC_NS32K_IMM_16
2293 ENUMX
2294 BFD_RELOC_NS32K_IMM_32
2295 ENUMX
2296 BFD_RELOC_NS32K_IMM_8_PCREL
2297 ENUMX
2298 BFD_RELOC_NS32K_IMM_16_PCREL
2299 ENUMX
2300 BFD_RELOC_NS32K_IMM_32_PCREL
2301 ENUMX
2302 BFD_RELOC_NS32K_DISP_8
2303 ENUMX
2304 BFD_RELOC_NS32K_DISP_16
2305 ENUMX
2306 BFD_RELOC_NS32K_DISP_32
2307 ENUMX
2308 BFD_RELOC_NS32K_DISP_8_PCREL
2309 ENUMX
2310 BFD_RELOC_NS32K_DISP_16_PCREL
2311 ENUMX
2312 BFD_RELOC_NS32K_DISP_32_PCREL
2313 ENUMDOC
2314 ns32k relocations
2315
2316 ENUM
2317 BFD_RELOC_PDP11_DISP_8_PCREL
2318 ENUMX
2319 BFD_RELOC_PDP11_DISP_6_PCREL
2320 ENUMDOC
2321 PDP11 relocations
2322
2323 ENUM
2324 BFD_RELOC_PJ_CODE_HI16
2325 ENUMX
2326 BFD_RELOC_PJ_CODE_LO16
2327 ENUMX
2328 BFD_RELOC_PJ_CODE_DIR16
2329 ENUMX
2330 BFD_RELOC_PJ_CODE_DIR32
2331 ENUMX
2332 BFD_RELOC_PJ_CODE_REL16
2333 ENUMX
2334 BFD_RELOC_PJ_CODE_REL32
2335 ENUMDOC
2336 Picojava relocs. Not all of these appear in object files.
2337
2338 ENUM
2339 BFD_RELOC_PPC_B26
2340 ENUMX
2341 BFD_RELOC_PPC_BA26
2342 ENUMX
2343 BFD_RELOC_PPC_TOC16
2344 ENUMX
2345 BFD_RELOC_PPC_B16
2346 ENUMX
2347 BFD_RELOC_PPC_B16_BRTAKEN
2348 ENUMX
2349 BFD_RELOC_PPC_B16_BRNTAKEN
2350 ENUMX
2351 BFD_RELOC_PPC_BA16
2352 ENUMX
2353 BFD_RELOC_PPC_BA16_BRTAKEN
2354 ENUMX
2355 BFD_RELOC_PPC_BA16_BRNTAKEN
2356 ENUMX
2357 BFD_RELOC_PPC_COPY
2358 ENUMX
2359 BFD_RELOC_PPC_GLOB_DAT
2360 ENUMX
2361 BFD_RELOC_PPC_JMP_SLOT
2362 ENUMX
2363 BFD_RELOC_PPC_RELATIVE
2364 ENUMX
2365 BFD_RELOC_PPC_LOCAL24PC
2366 ENUMX
2367 BFD_RELOC_PPC_EMB_NADDR32
2368 ENUMX
2369 BFD_RELOC_PPC_EMB_NADDR16
2370 ENUMX
2371 BFD_RELOC_PPC_EMB_NADDR16_LO
2372 ENUMX
2373 BFD_RELOC_PPC_EMB_NADDR16_HI
2374 ENUMX
2375 BFD_RELOC_PPC_EMB_NADDR16_HA
2376 ENUMX
2377 BFD_RELOC_PPC_EMB_SDAI16
2378 ENUMX
2379 BFD_RELOC_PPC_EMB_SDA2I16
2380 ENUMX
2381 BFD_RELOC_PPC_EMB_SDA2REL
2382 ENUMX
2383 BFD_RELOC_PPC_EMB_SDA21
2384 ENUMX
2385 BFD_RELOC_PPC_EMB_MRKREF
2386 ENUMX
2387 BFD_RELOC_PPC_EMB_RELSEC16
2388 ENUMX
2389 BFD_RELOC_PPC_EMB_RELST_LO
2390 ENUMX
2391 BFD_RELOC_PPC_EMB_RELST_HI
2392 ENUMX
2393 BFD_RELOC_PPC_EMB_RELST_HA
2394 ENUMX
2395 BFD_RELOC_PPC_EMB_BIT_FLD
2396 ENUMX
2397 BFD_RELOC_PPC_EMB_RELSDA
2398 ENUMX
2399 BFD_RELOC_PPC64_HIGHER
2400 ENUMX
2401 BFD_RELOC_PPC64_HIGHER_S
2402 ENUMX
2403 BFD_RELOC_PPC64_HIGHEST
2404 ENUMX
2405 BFD_RELOC_PPC64_HIGHEST_S
2406 ENUMX
2407 BFD_RELOC_PPC64_TOC16_LO
2408 ENUMX
2409 BFD_RELOC_PPC64_TOC16_HI
2410 ENUMX
2411 BFD_RELOC_PPC64_TOC16_HA
2412 ENUMX
2413 BFD_RELOC_PPC64_TOC
2414 ENUMX
2415 BFD_RELOC_PPC64_PLTGOT16
2416 ENUMX
2417 BFD_RELOC_PPC64_PLTGOT16_LO
2418 ENUMX
2419 BFD_RELOC_PPC64_PLTGOT16_HI
2420 ENUMX
2421 BFD_RELOC_PPC64_PLTGOT16_HA
2422 ENUMX
2423 BFD_RELOC_PPC64_ADDR16_DS
2424 ENUMX
2425 BFD_RELOC_PPC64_ADDR16_LO_DS
2426 ENUMX
2427 BFD_RELOC_PPC64_GOT16_DS
2428 ENUMX
2429 BFD_RELOC_PPC64_GOT16_LO_DS
2430 ENUMX
2431 BFD_RELOC_PPC64_PLT16_LO_DS
2432 ENUMX
2433 BFD_RELOC_PPC64_SECTOFF_DS
2434 ENUMX
2435 BFD_RELOC_PPC64_SECTOFF_LO_DS
2436 ENUMX
2437 BFD_RELOC_PPC64_TOC16_DS
2438 ENUMX
2439 BFD_RELOC_PPC64_TOC16_LO_DS
2440 ENUMX
2441 BFD_RELOC_PPC64_PLTGOT16_DS
2442 ENUMX
2443 BFD_RELOC_PPC64_PLTGOT16_LO_DS
2444 ENUMDOC
2445 Power(rs6000) and PowerPC relocations.
2446
2447 ENUM
2448 BFD_RELOC_PPC_TLS
2449 ENUMX
2450 BFD_RELOC_PPC_DTPMOD
2451 ENUMX
2452 BFD_RELOC_PPC_TPREL16
2453 ENUMX
2454 BFD_RELOC_PPC_TPREL16_LO
2455 ENUMX
2456 BFD_RELOC_PPC_TPREL16_HI
2457 ENUMX
2458 BFD_RELOC_PPC_TPREL16_HA
2459 ENUMX
2460 BFD_RELOC_PPC_TPREL
2461 ENUMX
2462 BFD_RELOC_PPC_DTPREL16
2463 ENUMX
2464 BFD_RELOC_PPC_DTPREL16_LO
2465 ENUMX
2466 BFD_RELOC_PPC_DTPREL16_HI
2467 ENUMX
2468 BFD_RELOC_PPC_DTPREL16_HA
2469 ENUMX
2470 BFD_RELOC_PPC_DTPREL
2471 ENUMX
2472 BFD_RELOC_PPC_GOT_TLSGD16
2473 ENUMX
2474 BFD_RELOC_PPC_GOT_TLSGD16_LO
2475 ENUMX
2476 BFD_RELOC_PPC_GOT_TLSGD16_HI
2477 ENUMX
2478 BFD_RELOC_PPC_GOT_TLSGD16_HA
2479 ENUMX
2480 BFD_RELOC_PPC_GOT_TLSLD16
2481 ENUMX
2482 BFD_RELOC_PPC_GOT_TLSLD16_LO
2483 ENUMX
2484 BFD_RELOC_PPC_GOT_TLSLD16_HI
2485 ENUMX
2486 BFD_RELOC_PPC_GOT_TLSLD16_HA
2487 ENUMX
2488 BFD_RELOC_PPC_GOT_TPREL16
2489 ENUMX
2490 BFD_RELOC_PPC_GOT_TPREL16_LO
2491 ENUMX
2492 BFD_RELOC_PPC_GOT_TPREL16_HI
2493 ENUMX
2494 BFD_RELOC_PPC_GOT_TPREL16_HA
2495 ENUMX
2496 BFD_RELOC_PPC_GOT_DTPREL16
2497 ENUMX
2498 BFD_RELOC_PPC_GOT_DTPREL16_LO
2499 ENUMX
2500 BFD_RELOC_PPC_GOT_DTPREL16_HI
2501 ENUMX
2502 BFD_RELOC_PPC_GOT_DTPREL16_HA
2503 ENUMX
2504 BFD_RELOC_PPC64_TPREL16_DS
2505 ENUMX
2506 BFD_RELOC_PPC64_TPREL16_LO_DS
2507 ENUMX
2508 BFD_RELOC_PPC64_TPREL16_HIGHER
2509 ENUMX
2510 BFD_RELOC_PPC64_TPREL16_HIGHERA
2511 ENUMX
2512 BFD_RELOC_PPC64_TPREL16_HIGHEST
2513 ENUMX
2514 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2515 ENUMX
2516 BFD_RELOC_PPC64_DTPREL16_DS
2517 ENUMX
2518 BFD_RELOC_PPC64_DTPREL16_LO_DS
2519 ENUMX
2520 BFD_RELOC_PPC64_DTPREL16_HIGHER
2521 ENUMX
2522 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2523 ENUMX
2524 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2525 ENUMX
2526 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2527 ENUMDOC
2528 PowerPC and PowerPC64 thread-local storage relocations.
2529
2530 ENUM
2531 BFD_RELOC_I370_D12
2532 ENUMDOC
2533 IBM 370/390 relocations
2534
2535 ENUM
2536 BFD_RELOC_CTOR
2537 ENUMDOC
2538 The type of reloc used to build a constructor table - at the moment
2539 probably a 32 bit wide absolute relocation, but the target can choose.
2540 It generally does map to one of the other relocation types.
2541
2542 ENUM
2543 BFD_RELOC_ARM_PCREL_BRANCH
2544 ENUMDOC
2545 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2546 not stored in the instruction.
2547 ENUM
2548 BFD_RELOC_ARM_PCREL_BLX
2549 ENUMDOC
2550 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2551 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2552 field in the instruction.
2553 ENUM
2554 BFD_RELOC_THUMB_PCREL_BLX
2555 ENUMDOC
2556 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2557 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2558 field in the instruction.
2559 ENUM
2560 BFD_RELOC_ARM_IMMEDIATE
2561 ENUMX
2562 BFD_RELOC_ARM_ADRL_IMMEDIATE
2563 ENUMX
2564 BFD_RELOC_ARM_OFFSET_IMM
2565 ENUMX
2566 BFD_RELOC_ARM_SHIFT_IMM
2567 ENUMX
2568 BFD_RELOC_ARM_SWI
2569 ENUMX
2570 BFD_RELOC_ARM_MULTI
2571 ENUMX
2572 BFD_RELOC_ARM_CP_OFF_IMM
2573 ENUMX
2574 BFD_RELOC_ARM_CP_OFF_IMM_S2
2575 ENUMX
2576 BFD_RELOC_ARM_ADR_IMM
2577 ENUMX
2578 BFD_RELOC_ARM_LDR_IMM
2579 ENUMX
2580 BFD_RELOC_ARM_LITERAL
2581 ENUMX
2582 BFD_RELOC_ARM_IN_POOL
2583 ENUMX
2584 BFD_RELOC_ARM_OFFSET_IMM8
2585 ENUMX
2586 BFD_RELOC_ARM_HWLITERAL
2587 ENUMX
2588 BFD_RELOC_ARM_THUMB_ADD
2589 ENUMX
2590 BFD_RELOC_ARM_THUMB_IMM
2591 ENUMX
2592 BFD_RELOC_ARM_THUMB_SHIFT
2593 ENUMX
2594 BFD_RELOC_ARM_THUMB_OFFSET
2595 ENUMX
2596 BFD_RELOC_ARM_GOT12
2597 ENUMX
2598 BFD_RELOC_ARM_GOT32
2599 ENUMX
2600 BFD_RELOC_ARM_JUMP_SLOT
2601 ENUMX
2602 BFD_RELOC_ARM_COPY
2603 ENUMX
2604 BFD_RELOC_ARM_GLOB_DAT
2605 ENUMX
2606 BFD_RELOC_ARM_PLT32
2607 ENUMX
2608 BFD_RELOC_ARM_RELATIVE
2609 ENUMX
2610 BFD_RELOC_ARM_GOTOFF
2611 ENUMX
2612 BFD_RELOC_ARM_GOTPC
2613 ENUMDOC
2614 These relocs are only used within the ARM assembler. They are not
2615 (at present) written to any object files.
2616
2617 ENUM
2618 BFD_RELOC_SH_PCDISP8BY2
2619 ENUMX
2620 BFD_RELOC_SH_PCDISP12BY2
2621 ENUMX
2622 BFD_RELOC_SH_IMM4
2623 ENUMX
2624 BFD_RELOC_SH_IMM4BY2
2625 ENUMX
2626 BFD_RELOC_SH_IMM4BY4
2627 ENUMX
2628 BFD_RELOC_SH_IMM8
2629 ENUMX
2630 BFD_RELOC_SH_IMM8BY2
2631 ENUMX
2632 BFD_RELOC_SH_IMM8BY4
2633 ENUMX
2634 BFD_RELOC_SH_PCRELIMM8BY2
2635 ENUMX
2636 BFD_RELOC_SH_PCRELIMM8BY4
2637 ENUMX
2638 BFD_RELOC_SH_SWITCH16
2639 ENUMX
2640 BFD_RELOC_SH_SWITCH32
2641 ENUMX
2642 BFD_RELOC_SH_USES
2643 ENUMX
2644 BFD_RELOC_SH_COUNT
2645 ENUMX
2646 BFD_RELOC_SH_ALIGN
2647 ENUMX
2648 BFD_RELOC_SH_CODE
2649 ENUMX
2650 BFD_RELOC_SH_DATA
2651 ENUMX
2652 BFD_RELOC_SH_LABEL
2653 ENUMX
2654 BFD_RELOC_SH_LOOP_START
2655 ENUMX
2656 BFD_RELOC_SH_LOOP_END
2657 ENUMX
2658 BFD_RELOC_SH_COPY
2659 ENUMX
2660 BFD_RELOC_SH_GLOB_DAT
2661 ENUMX
2662 BFD_RELOC_SH_JMP_SLOT
2663 ENUMX
2664 BFD_RELOC_SH_RELATIVE
2665 ENUMX
2666 BFD_RELOC_SH_GOTPC
2667 ENUMX
2668 BFD_RELOC_SH_GOT_LOW16
2669 ENUMX
2670 BFD_RELOC_SH_GOT_MEDLOW16
2671 ENUMX
2672 BFD_RELOC_SH_GOT_MEDHI16
2673 ENUMX
2674 BFD_RELOC_SH_GOT_HI16
2675 ENUMX
2676 BFD_RELOC_SH_GOTPLT_LOW16
2677 ENUMX
2678 BFD_RELOC_SH_GOTPLT_MEDLOW16
2679 ENUMX
2680 BFD_RELOC_SH_GOTPLT_MEDHI16
2681 ENUMX
2682 BFD_RELOC_SH_GOTPLT_HI16
2683 ENUMX
2684 BFD_RELOC_SH_PLT_LOW16
2685 ENUMX
2686 BFD_RELOC_SH_PLT_MEDLOW16
2687 ENUMX
2688 BFD_RELOC_SH_PLT_MEDHI16
2689 ENUMX
2690 BFD_RELOC_SH_PLT_HI16
2691 ENUMX
2692 BFD_RELOC_SH_GOTOFF_LOW16
2693 ENUMX
2694 BFD_RELOC_SH_GOTOFF_MEDLOW16
2695 ENUMX
2696 BFD_RELOC_SH_GOTOFF_MEDHI16
2697 ENUMX
2698 BFD_RELOC_SH_GOTOFF_HI16
2699 ENUMX
2700 BFD_RELOC_SH_GOTPC_LOW16
2701 ENUMX
2702 BFD_RELOC_SH_GOTPC_MEDLOW16
2703 ENUMX
2704 BFD_RELOC_SH_GOTPC_MEDHI16
2705 ENUMX
2706 BFD_RELOC_SH_GOTPC_HI16
2707 ENUMX
2708 BFD_RELOC_SH_COPY64
2709 ENUMX
2710 BFD_RELOC_SH_GLOB_DAT64
2711 ENUMX
2712 BFD_RELOC_SH_JMP_SLOT64
2713 ENUMX
2714 BFD_RELOC_SH_RELATIVE64
2715 ENUMX
2716 BFD_RELOC_SH_GOT10BY4
2717 ENUMX
2718 BFD_RELOC_SH_GOT10BY8
2719 ENUMX
2720 BFD_RELOC_SH_GOTPLT10BY4
2721 ENUMX
2722 BFD_RELOC_SH_GOTPLT10BY8
2723 ENUMX
2724 BFD_RELOC_SH_GOTPLT32
2725 ENUMX
2726 BFD_RELOC_SH_SHMEDIA_CODE
2727 ENUMX
2728 BFD_RELOC_SH_IMMU5
2729 ENUMX
2730 BFD_RELOC_SH_IMMS6
2731 ENUMX
2732 BFD_RELOC_SH_IMMS6BY32
2733 ENUMX
2734 BFD_RELOC_SH_IMMU6
2735 ENUMX
2736 BFD_RELOC_SH_IMMS10
2737 ENUMX
2738 BFD_RELOC_SH_IMMS10BY2
2739 ENUMX
2740 BFD_RELOC_SH_IMMS10BY4
2741 ENUMX
2742 BFD_RELOC_SH_IMMS10BY8
2743 ENUMX
2744 BFD_RELOC_SH_IMMS16
2745 ENUMX
2746 BFD_RELOC_SH_IMMU16
2747 ENUMX
2748 BFD_RELOC_SH_IMM_LOW16
2749 ENUMX
2750 BFD_RELOC_SH_IMM_LOW16_PCREL
2751 ENUMX
2752 BFD_RELOC_SH_IMM_MEDLOW16
2753 ENUMX
2754 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2755 ENUMX
2756 BFD_RELOC_SH_IMM_MEDHI16
2757 ENUMX
2758 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2759 ENUMX
2760 BFD_RELOC_SH_IMM_HI16
2761 ENUMX
2762 BFD_RELOC_SH_IMM_HI16_PCREL
2763 ENUMX
2764 BFD_RELOC_SH_PT_16
2765 ENUMX
2766 BFD_RELOC_SH_TLS_GD_32
2767 ENUMX
2768 BFD_RELOC_SH_TLS_LD_32
2769 ENUMX
2770 BFD_RELOC_SH_TLS_LDO_32
2771 ENUMX
2772 BFD_RELOC_SH_TLS_IE_32
2773 ENUMX
2774 BFD_RELOC_SH_TLS_LE_32
2775 ENUMX
2776 BFD_RELOC_SH_TLS_DTPMOD32
2777 ENUMX
2778 BFD_RELOC_SH_TLS_DTPOFF32
2779 ENUMX
2780 BFD_RELOC_SH_TLS_TPOFF32
2781 ENUMDOC
2782 Renesas / SuperH SH relocs. Not all of these appear in object files.
2783
2784 ENUM
2785 BFD_RELOC_THUMB_PCREL_BRANCH9
2786 ENUMX
2787 BFD_RELOC_THUMB_PCREL_BRANCH12
2788 ENUMX
2789 BFD_RELOC_THUMB_PCREL_BRANCH23
2790 ENUMDOC
2791 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2792 be zero and is not stored in the instruction.
2793
2794 ENUM
2795 BFD_RELOC_ARC_B22_PCREL
2796 ENUMDOC
2797 ARC Cores relocs.
2798 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2799 not stored in the instruction. The high 20 bits are installed in bits 26
2800 through 7 of the instruction.
2801 ENUM
2802 BFD_RELOC_ARC_B26
2803 ENUMDOC
2804 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2805 stored in the instruction. The high 24 bits are installed in bits 23
2806 through 0.
2807
2808 ENUM
2809 BFD_RELOC_D10V_10_PCREL_R
2810 ENUMDOC
2811 Mitsubishi D10V relocs.
2812 This is a 10-bit reloc with the right 2 bits
2813 assumed to be 0.
2814 ENUM
2815 BFD_RELOC_D10V_10_PCREL_L
2816 ENUMDOC
2817 Mitsubishi D10V relocs.
2818 This is a 10-bit reloc with the right 2 bits
2819 assumed to be 0. This is the same as the previous reloc
2820 except it is in the left container, i.e.,
2821 shifted left 15 bits.
2822 ENUM
2823 BFD_RELOC_D10V_18
2824 ENUMDOC
2825 This is an 18-bit reloc with the right 2 bits
2826 assumed to be 0.
2827 ENUM
2828 BFD_RELOC_D10V_18_PCREL
2829 ENUMDOC
2830 This is an 18-bit reloc with the right 2 bits
2831 assumed to be 0.
2832
2833 ENUM
2834 BFD_RELOC_D30V_6
2835 ENUMDOC
2836 Mitsubishi D30V relocs.
2837 This is a 6-bit absolute reloc.
2838 ENUM
2839 BFD_RELOC_D30V_9_PCREL
2840 ENUMDOC
2841 This is a 6-bit pc-relative reloc with
2842 the right 3 bits assumed to be 0.
2843 ENUM
2844 BFD_RELOC_D30V_9_PCREL_R
2845 ENUMDOC
2846 This is a 6-bit pc-relative reloc with
2847 the right 3 bits assumed to be 0. Same
2848 as the previous reloc but on the right side
2849 of the container.
2850 ENUM
2851 BFD_RELOC_D30V_15
2852 ENUMDOC
2853 This is a 12-bit absolute reloc with the
2854 right 3 bitsassumed to be 0.
2855 ENUM
2856 BFD_RELOC_D30V_15_PCREL
2857 ENUMDOC
2858 This is a 12-bit pc-relative reloc with
2859 the right 3 bits assumed to be 0.
2860 ENUM
2861 BFD_RELOC_D30V_15_PCREL_R
2862 ENUMDOC
2863 This is a 12-bit pc-relative reloc with
2864 the right 3 bits assumed to be 0. Same
2865 as the previous reloc but on the right side
2866 of the container.
2867 ENUM
2868 BFD_RELOC_D30V_21
2869 ENUMDOC
2870 This is an 18-bit absolute reloc with
2871 the right 3 bits assumed to be 0.
2872 ENUM
2873 BFD_RELOC_D30V_21_PCREL
2874 ENUMDOC
2875 This is an 18-bit pc-relative reloc with
2876 the right 3 bits assumed to be 0.
2877 ENUM
2878 BFD_RELOC_D30V_21_PCREL_R
2879 ENUMDOC
2880 This is an 18-bit pc-relative reloc with
2881 the right 3 bits assumed to be 0. Same
2882 as the previous reloc but on the right side
2883 of the container.
2884 ENUM
2885 BFD_RELOC_D30V_32
2886 ENUMDOC
2887 This is a 32-bit absolute reloc.
2888 ENUM
2889 BFD_RELOC_D30V_32_PCREL
2890 ENUMDOC
2891 This is a 32-bit pc-relative reloc.
2892
2893 ENUM
2894 BFD_RELOC_DLX_HI16_S
2895 ENUMDOC
2896 DLX relocs
2897 ENUM
2898 BFD_RELOC_DLX_LO16
2899 ENUMDOC
2900 DLX relocs
2901 ENUM
2902 BFD_RELOC_DLX_JMP26
2903 ENUMDOC
2904 DLX relocs
2905
2906 ENUM
2907 BFD_RELOC_M32R_24
2908 ENUMDOC
2909 Renesas M32R (formerly Mitsubishi M32R) relocs.
2910 This is a 24 bit absolute address.
2911 ENUM
2912 BFD_RELOC_M32R_10_PCREL
2913 ENUMDOC
2914 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2915 ENUM
2916 BFD_RELOC_M32R_18_PCREL
2917 ENUMDOC
2918 This is an 18-bit reloc with the right 2 bits assumed to be 0.
2919 ENUM
2920 BFD_RELOC_M32R_26_PCREL
2921 ENUMDOC
2922 This is a 26-bit reloc with the right 2 bits assumed to be 0.
2923 ENUM
2924 BFD_RELOC_M32R_HI16_ULO
2925 ENUMDOC
2926 This is a 16-bit reloc containing the high 16 bits of an address
2927 used when the lower 16 bits are treated as unsigned.
2928 ENUM
2929 BFD_RELOC_M32R_HI16_SLO
2930 ENUMDOC
2931 This is a 16-bit reloc containing the high 16 bits of an address
2932 used when the lower 16 bits are treated as signed.
2933 ENUM
2934 BFD_RELOC_M32R_LO16
2935 ENUMDOC
2936 This is a 16-bit reloc containing the lower 16 bits of an address.
2937 ENUM
2938 BFD_RELOC_M32R_SDA16
2939 ENUMDOC
2940 This is a 16-bit reloc containing the small data area offset for use in
2941 add3, load, and store instructions.
2942 ENUM
2943 BFD_RELOC_M32R_GOT24
2944 ENUMX
2945 BFD_RELOC_M32R_26_PLTREL
2946 ENUMX
2947 BFD_RELOC_M32R_COPY
2948 ENUMX
2949 BFD_RELOC_M32R_GLOB_DAT
2950 ENUMX
2951 BFD_RELOC_M32R_JMP_SLOT
2952 ENUMX
2953 BFD_RELOC_M32R_RELATIVE
2954 ENUMX
2955 BFD_RELOC_M32R_GOTOFF
2956 ENUMX
2957 BFD_RELOC_M32R_GOTPC24
2958 ENUMX
2959 BFD_RELOC_M32R_GOT16_HI_ULO
2960 ENUMX
2961 BFD_RELOC_M32R_GOT16_HI_SLO
2962 ENUMX
2963 BFD_RELOC_M32R_GOT16_LO
2964 ENUMX
2965 BFD_RELOC_M32R_GOTPC_HI_ULO
2966 ENUMX
2967 BFD_RELOC_M32R_GOTPC_HI_SLO
2968 ENUMX
2969 BFD_RELOC_M32R_GOTPC_LO
2970 ENUMDOC
2971 For PIC.
2972
2973
2974 ENUM
2975 BFD_RELOC_V850_9_PCREL
2976 ENUMDOC
2977 This is a 9-bit reloc
2978 ENUM
2979 BFD_RELOC_V850_22_PCREL
2980 ENUMDOC
2981 This is a 22-bit reloc
2982
2983 ENUM
2984 BFD_RELOC_V850_SDA_16_16_OFFSET
2985 ENUMDOC
2986 This is a 16 bit offset from the short data area pointer.
2987 ENUM
2988 BFD_RELOC_V850_SDA_15_16_OFFSET
2989 ENUMDOC
2990 This is a 16 bit offset (of which only 15 bits are used) from the
2991 short data area pointer.
2992 ENUM
2993 BFD_RELOC_V850_ZDA_16_16_OFFSET
2994 ENUMDOC
2995 This is a 16 bit offset from the zero data area pointer.
2996 ENUM
2997 BFD_RELOC_V850_ZDA_15_16_OFFSET
2998 ENUMDOC
2999 This is a 16 bit offset (of which only 15 bits are used) from the
3000 zero data area pointer.
3001 ENUM
3002 BFD_RELOC_V850_TDA_6_8_OFFSET
3003 ENUMDOC
3004 This is an 8 bit offset (of which only 6 bits are used) from the
3005 tiny data area pointer.
3006 ENUM
3007 BFD_RELOC_V850_TDA_7_8_OFFSET
3008 ENUMDOC
3009 This is an 8bit offset (of which only 7 bits are used) from the tiny
3010 data area pointer.
3011 ENUM
3012 BFD_RELOC_V850_TDA_7_7_OFFSET
3013 ENUMDOC
3014 This is a 7 bit offset from the tiny data area pointer.
3015 ENUM
3016 BFD_RELOC_V850_TDA_16_16_OFFSET
3017 ENUMDOC
3018 This is a 16 bit offset from the tiny data area pointer.
3019 COMMENT
3020 ENUM
3021 BFD_RELOC_V850_TDA_4_5_OFFSET
3022 ENUMDOC
3023 This is a 5 bit offset (of which only 4 bits are used) from the tiny
3024 data area pointer.
3025 ENUM
3026 BFD_RELOC_V850_TDA_4_4_OFFSET
3027 ENUMDOC
3028 This is a 4 bit offset from the tiny data area pointer.
3029 ENUM
3030 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
3031 ENUMDOC
3032 This is a 16 bit offset from the short data area pointer, with the
3033 bits placed non-contiguously in the instruction.
3034 ENUM
3035 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
3036 ENUMDOC
3037 This is a 16 bit offset from the zero data area pointer, with the
3038 bits placed non-contiguously in the instruction.
3039 ENUM
3040 BFD_RELOC_V850_CALLT_6_7_OFFSET
3041 ENUMDOC
3042 This is a 6 bit offset from the call table base pointer.
3043 ENUM
3044 BFD_RELOC_V850_CALLT_16_16_OFFSET
3045 ENUMDOC
3046 This is a 16 bit offset from the call table base pointer.
3047 ENUM
3048 BFD_RELOC_V850_LONGCALL
3049 ENUMDOC
3050 Used for relaxing indirect function calls.
3051 ENUM
3052 BFD_RELOC_V850_LONGJUMP
3053 ENUMDOC
3054 Used for relaxing indirect jumps.
3055 ENUM
3056 BFD_RELOC_V850_ALIGN
3057 ENUMDOC
3058 Used to maintain alignment whilst relaxing.
3059 ENUM
3060 BFD_RELOC_MN10300_32_PCREL
3061 ENUMDOC
3062 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
3063 instruction.
3064 ENUM
3065 BFD_RELOC_MN10300_16_PCREL
3066 ENUMDOC
3067 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
3068 instruction.
3069
3070 ENUM
3071 BFD_RELOC_TIC30_LDP
3072 ENUMDOC
3073 This is a 8bit DP reloc for the tms320c30, where the most
3074 significant 8 bits of a 24 bit word are placed into the least
3075 significant 8 bits of the opcode.
3076
3077 ENUM
3078 BFD_RELOC_TIC54X_PARTLS7
3079 ENUMDOC
3080 This is a 7bit reloc for the tms320c54x, where the least
3081 significant 7 bits of a 16 bit word are placed into the least
3082 significant 7 bits of the opcode.
3083
3084 ENUM
3085 BFD_RELOC_TIC54X_PARTMS9
3086 ENUMDOC
3087 This is a 9bit DP reloc for the tms320c54x, where the most
3088 significant 9 bits of a 16 bit word are placed into the least
3089 significant 9 bits of the opcode.
3090
3091 ENUM
3092 BFD_RELOC_TIC54X_23
3093 ENUMDOC
3094 This is an extended address 23-bit reloc for the tms320c54x.
3095
3096 ENUM
3097 BFD_RELOC_TIC54X_16_OF_23
3098 ENUMDOC
3099 This is a 16-bit reloc for the tms320c54x, where the least
3100 significant 16 bits of a 23-bit extended address are placed into
3101 the opcode.
3102
3103 ENUM
3104 BFD_RELOC_TIC54X_MS7_OF_23
3105 ENUMDOC
3106 This is a reloc for the tms320c54x, where the most
3107 significant 7 bits of a 23-bit extended address are placed into
3108 the opcode.
3109
3110 ENUM
3111 BFD_RELOC_FR30_48
3112 ENUMDOC
3113 This is a 48 bit reloc for the FR30 that stores 32 bits.
3114 ENUM
3115 BFD_RELOC_FR30_20
3116 ENUMDOC
3117 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3118 two sections.
3119 ENUM
3120 BFD_RELOC_FR30_6_IN_4
3121 ENUMDOC
3122 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3123 4 bits.
3124 ENUM
3125 BFD_RELOC_FR30_8_IN_8
3126 ENUMDOC
3127 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3128 into 8 bits.
3129 ENUM
3130 BFD_RELOC_FR30_9_IN_8
3131 ENUMDOC
3132 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3133 into 8 bits.
3134 ENUM
3135 BFD_RELOC_FR30_10_IN_8
3136 ENUMDOC
3137 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3138 into 8 bits.
3139 ENUM
3140 BFD_RELOC_FR30_9_PCREL
3141 ENUMDOC
3142 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3143 short offset into 8 bits.
3144 ENUM
3145 BFD_RELOC_FR30_12_PCREL
3146 ENUMDOC
3147 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3148 short offset into 11 bits.
3149
3150 ENUM
3151 BFD_RELOC_MCORE_PCREL_IMM8BY4
3152 ENUMX
3153 BFD_RELOC_MCORE_PCREL_IMM11BY2
3154 ENUMX
3155 BFD_RELOC_MCORE_PCREL_IMM4BY2
3156 ENUMX
3157 BFD_RELOC_MCORE_PCREL_32
3158 ENUMX
3159 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3160 ENUMX
3161 BFD_RELOC_MCORE_RVA
3162 ENUMDOC
3163 Motorola Mcore relocations.
3164
3165 ENUM
3166 BFD_RELOC_MMIX_GETA
3167 ENUMX
3168 BFD_RELOC_MMIX_GETA_1
3169 ENUMX
3170 BFD_RELOC_MMIX_GETA_2
3171 ENUMX
3172 BFD_RELOC_MMIX_GETA_3
3173 ENUMDOC
3174 These are relocations for the GETA instruction.
3175 ENUM
3176 BFD_RELOC_MMIX_CBRANCH
3177 ENUMX
3178 BFD_RELOC_MMIX_CBRANCH_J
3179 ENUMX
3180 BFD_RELOC_MMIX_CBRANCH_1
3181 ENUMX
3182 BFD_RELOC_MMIX_CBRANCH_2
3183 ENUMX
3184 BFD_RELOC_MMIX_CBRANCH_3
3185 ENUMDOC
3186 These are relocations for a conditional branch instruction.
3187 ENUM
3188 BFD_RELOC_MMIX_PUSHJ
3189 ENUMX
3190 BFD_RELOC_MMIX_PUSHJ_1
3191 ENUMX
3192 BFD_RELOC_MMIX_PUSHJ_2
3193 ENUMX
3194 BFD_RELOC_MMIX_PUSHJ_3
3195 ENUMX
3196 BFD_RELOC_MMIX_PUSHJ_STUBBABLE
3197 ENUMDOC
3198 These are relocations for the PUSHJ instruction.
3199 ENUM
3200 BFD_RELOC_MMIX_JMP
3201 ENUMX
3202 BFD_RELOC_MMIX_JMP_1
3203 ENUMX
3204 BFD_RELOC_MMIX_JMP_2
3205 ENUMX
3206 BFD_RELOC_MMIX_JMP_3
3207 ENUMDOC
3208 These are relocations for the JMP instruction.
3209 ENUM
3210 BFD_RELOC_MMIX_ADDR19
3211 ENUMDOC
3212 This is a relocation for a relative address as in a GETA instruction or
3213 a branch.
3214 ENUM
3215 BFD_RELOC_MMIX_ADDR27
3216 ENUMDOC
3217 This is a relocation for a relative address as in a JMP instruction.
3218 ENUM
3219 BFD_RELOC_MMIX_REG_OR_BYTE
3220 ENUMDOC
3221 This is a relocation for an instruction field that may be a general
3222 register or a value 0..255.
3223 ENUM
3224 BFD_RELOC_MMIX_REG
3225 ENUMDOC
3226 This is a relocation for an instruction field that may be a general
3227 register.
3228 ENUM
3229 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3230 ENUMDOC
3231 This is a relocation for two instruction fields holding a register and
3232 an offset, the equivalent of the relocation.
3233 ENUM
3234 BFD_RELOC_MMIX_LOCAL
3235 ENUMDOC
3236 This relocation is an assertion that the expression is not allocated as
3237 a global register. It does not modify contents.
3238
3239 ENUM
3240 BFD_RELOC_AVR_7_PCREL
3241 ENUMDOC
3242 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3243 short offset into 7 bits.
3244 ENUM
3245 BFD_RELOC_AVR_13_PCREL
3246 ENUMDOC
3247 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3248 short offset into 12 bits.
3249 ENUM
3250 BFD_RELOC_AVR_16_PM
3251 ENUMDOC
3252 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3253 program memory address) into 16 bits.
3254 ENUM
3255 BFD_RELOC_AVR_LO8_LDI
3256 ENUMDOC
3257 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3258 data memory address) into 8 bit immediate value of LDI insn.
3259 ENUM
3260 BFD_RELOC_AVR_HI8_LDI
3261 ENUMDOC
3262 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3263 of data memory address) into 8 bit immediate value of LDI insn.
3264 ENUM
3265 BFD_RELOC_AVR_HH8_LDI
3266 ENUMDOC
3267 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3268 of program memory address) into 8 bit immediate value of LDI insn.
3269 ENUM
3270 BFD_RELOC_AVR_LO8_LDI_NEG
3271 ENUMDOC
3272 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3273 (usually data memory address) into 8 bit immediate value of SUBI insn.
3274 ENUM
3275 BFD_RELOC_AVR_HI8_LDI_NEG
3276 ENUMDOC
3277 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3278 (high 8 bit of data memory address) into 8 bit immediate value of
3279 SUBI insn.
3280 ENUM
3281 BFD_RELOC_AVR_HH8_LDI_NEG
3282 ENUMDOC
3283 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3284 (most high 8 bit of program memory address) into 8 bit immediate value
3285 of LDI or SUBI insn.
3286 ENUM
3287 BFD_RELOC_AVR_LO8_LDI_PM
3288 ENUMDOC
3289 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3290 command address) into 8 bit immediate value of LDI insn.
3291 ENUM
3292 BFD_RELOC_AVR_HI8_LDI_PM
3293 ENUMDOC
3294 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3295 of command address) into 8 bit immediate value of LDI insn.
3296 ENUM
3297 BFD_RELOC_AVR_HH8_LDI_PM
3298 ENUMDOC
3299 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3300 of command address) into 8 bit immediate value of LDI insn.
3301 ENUM
3302 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3303 ENUMDOC
3304 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3305 (usually command address) into 8 bit immediate value of SUBI insn.
3306 ENUM
3307 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3308 ENUMDOC
3309 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3310 (high 8 bit of 16 bit command address) into 8 bit immediate value
3311 of SUBI insn.
3312 ENUM
3313 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3314 ENUMDOC
3315 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3316 (high 6 bit of 22 bit command address) into 8 bit immediate
3317 value of SUBI insn.
3318 ENUM
3319 BFD_RELOC_AVR_CALL
3320 ENUMDOC
3321 This is a 32 bit reloc for the AVR that stores 23 bit value
3322 into 22 bits.
3323
3324 ENUM
3325 BFD_RELOC_390_12
3326 ENUMDOC
3327 Direct 12 bit.
3328 ENUM
3329 BFD_RELOC_390_GOT12
3330 ENUMDOC
3331 12 bit GOT offset.
3332 ENUM
3333 BFD_RELOC_390_PLT32
3334 ENUMDOC
3335 32 bit PC relative PLT address.
3336 ENUM
3337 BFD_RELOC_390_COPY
3338 ENUMDOC
3339 Copy symbol at runtime.
3340 ENUM
3341 BFD_RELOC_390_GLOB_DAT
3342 ENUMDOC
3343 Create GOT entry.
3344 ENUM
3345 BFD_RELOC_390_JMP_SLOT
3346 ENUMDOC
3347 Create PLT entry.
3348 ENUM
3349 BFD_RELOC_390_RELATIVE
3350 ENUMDOC
3351 Adjust by program base.
3352 ENUM
3353 BFD_RELOC_390_GOTPC
3354 ENUMDOC
3355 32 bit PC relative offset to GOT.
3356 ENUM
3357 BFD_RELOC_390_GOT16
3358 ENUMDOC
3359 16 bit GOT offset.
3360 ENUM
3361 BFD_RELOC_390_PC16DBL
3362 ENUMDOC
3363 PC relative 16 bit shifted by 1.
3364 ENUM
3365 BFD_RELOC_390_PLT16DBL
3366 ENUMDOC
3367 16 bit PC rel. PLT shifted by 1.
3368 ENUM
3369 BFD_RELOC_390_PC32DBL
3370 ENUMDOC
3371 PC relative 32 bit shifted by 1.
3372 ENUM
3373 BFD_RELOC_390_PLT32DBL
3374 ENUMDOC
3375 32 bit PC rel. PLT shifted by 1.
3376 ENUM
3377 BFD_RELOC_390_GOTPCDBL
3378 ENUMDOC
3379 32 bit PC rel. GOT shifted by 1.
3380 ENUM
3381 BFD_RELOC_390_GOT64
3382 ENUMDOC
3383 64 bit GOT offset.
3384 ENUM
3385 BFD_RELOC_390_PLT64
3386 ENUMDOC
3387 64 bit PC relative PLT address.
3388 ENUM
3389 BFD_RELOC_390_GOTENT
3390 ENUMDOC
3391 32 bit rel. offset to GOT entry.
3392 ENUM
3393 BFD_RELOC_390_GOTOFF64
3394 ENUMDOC
3395 64 bit offset to GOT.
3396 ENUM
3397 BFD_RELOC_390_GOTPLT12
3398 ENUMDOC
3399 12-bit offset to symbol-entry within GOT, with PLT handling.
3400 ENUM
3401 BFD_RELOC_390_GOTPLT16
3402 ENUMDOC
3403 16-bit offset to symbol-entry within GOT, with PLT handling.
3404 ENUM
3405 BFD_RELOC_390_GOTPLT32
3406 ENUMDOC
3407 32-bit offset to symbol-entry within GOT, with PLT handling.
3408 ENUM
3409 BFD_RELOC_390_GOTPLT64
3410 ENUMDOC
3411 64-bit offset to symbol-entry within GOT, with PLT handling.
3412 ENUM
3413 BFD_RELOC_390_GOTPLTENT
3414 ENUMDOC
3415 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3416 ENUM
3417 BFD_RELOC_390_PLTOFF16
3418 ENUMDOC
3419 16-bit rel. offset from the GOT to a PLT entry.
3420 ENUM
3421 BFD_RELOC_390_PLTOFF32
3422 ENUMDOC
3423 32-bit rel. offset from the GOT to a PLT entry.
3424 ENUM
3425 BFD_RELOC_390_PLTOFF64
3426 ENUMDOC
3427 64-bit rel. offset from the GOT to a PLT entry.
3428
3429 ENUM
3430 BFD_RELOC_390_TLS_LOAD
3431 ENUMX
3432 BFD_RELOC_390_TLS_GDCALL
3433 ENUMX
3434 BFD_RELOC_390_TLS_LDCALL
3435 ENUMX
3436 BFD_RELOC_390_TLS_GD32
3437 ENUMX
3438 BFD_RELOC_390_TLS_GD64
3439 ENUMX
3440 BFD_RELOC_390_TLS_GOTIE12
3441 ENUMX
3442 BFD_RELOC_390_TLS_GOTIE32
3443 ENUMX
3444 BFD_RELOC_390_TLS_GOTIE64
3445 ENUMX
3446 BFD_RELOC_390_TLS_LDM32
3447 ENUMX
3448 BFD_RELOC_390_TLS_LDM64
3449 ENUMX
3450 BFD_RELOC_390_TLS_IE32
3451 ENUMX
3452 BFD_RELOC_390_TLS_IE64
3453 ENUMX
3454 BFD_RELOC_390_TLS_IEENT
3455 ENUMX
3456 BFD_RELOC_390_TLS_LE32
3457 ENUMX
3458 BFD_RELOC_390_TLS_LE64
3459 ENUMX
3460 BFD_RELOC_390_TLS_LDO32
3461 ENUMX
3462 BFD_RELOC_390_TLS_LDO64
3463 ENUMX
3464 BFD_RELOC_390_TLS_DTPMOD
3465 ENUMX
3466 BFD_RELOC_390_TLS_DTPOFF
3467 ENUMX
3468 BFD_RELOC_390_TLS_TPOFF
3469 ENUMDOC
3470 s390 tls relocations.
3471
3472 ENUM
3473 BFD_RELOC_390_20
3474 ENUMX
3475 BFD_RELOC_390_GOT20
3476 ENUMX
3477 BFD_RELOC_390_GOTPLT20
3478 ENUMX
3479 BFD_RELOC_390_TLS_GOTIE20
3480 ENUMDOC
3481 Long displacement extension.
3482
3483 ENUM
3484 BFD_RELOC_IP2K_FR9
3485 ENUMDOC
3486 Scenix IP2K - 9-bit register number / data address
3487 ENUM
3488 BFD_RELOC_IP2K_BANK
3489 ENUMDOC
3490 Scenix IP2K - 4-bit register/data bank number
3491 ENUM
3492 BFD_RELOC_IP2K_ADDR16CJP
3493 ENUMDOC
3494 Scenix IP2K - low 13 bits of instruction word address
3495 ENUM
3496 BFD_RELOC_IP2K_PAGE3
3497 ENUMDOC
3498 Scenix IP2K - high 3 bits of instruction word address
3499 ENUM
3500 BFD_RELOC_IP2K_LO8DATA
3501 ENUMX
3502 BFD_RELOC_IP2K_HI8DATA
3503 ENUMX
3504 BFD_RELOC_IP2K_EX8DATA
3505 ENUMDOC
3506 Scenix IP2K - ext/low/high 8 bits of data address
3507 ENUM
3508 BFD_RELOC_IP2K_LO8INSN
3509 ENUMX
3510 BFD_RELOC_IP2K_HI8INSN
3511 ENUMDOC
3512 Scenix IP2K - low/high 8 bits of instruction word address
3513 ENUM
3514 BFD_RELOC_IP2K_PC_SKIP
3515 ENUMDOC
3516 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3517 ENUM
3518 BFD_RELOC_IP2K_TEXT
3519 ENUMDOC
3520 Scenix IP2K - 16 bit word address in text section.
3521 ENUM
3522 BFD_RELOC_IP2K_FR_OFFSET
3523 ENUMDOC
3524 Scenix IP2K - 7-bit sp or dp offset
3525 ENUM
3526 BFD_RELOC_VPE4KMATH_DATA
3527 ENUMX
3528 BFD_RELOC_VPE4KMATH_INSN
3529 ENUMDOC
3530 Scenix VPE4K coprocessor - data/insn-space addressing
3531
3532 ENUM
3533 BFD_RELOC_VTABLE_INHERIT
3534 ENUMX
3535 BFD_RELOC_VTABLE_ENTRY
3536 ENUMDOC
3537 These two relocations are used by the linker to determine which of
3538 the entries in a C++ virtual function table are actually used. When
3539 the --gc-sections option is given, the linker will zero out the entries
3540 that are not used, so that the code for those functions need not be
3541 included in the output.
3542
3543 VTABLE_INHERIT is a zero-space relocation used to describe to the
3544 linker the inheritance tree of a C++ virtual function table. The
3545 relocation's symbol should be the parent class' vtable, and the
3546 relocation should be located at the child vtable.
3547
3548 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3549 virtual function table entry. The reloc's symbol should refer to the
3550 table of the class mentioned in the code. Off of that base, an offset
3551 describes the entry that is being used. For Rela hosts, this offset
3552 is stored in the reloc's addend. For Rel hosts, we are forced to put
3553 this offset in the reloc's section offset.
3554
3555 ENUM
3556 BFD_RELOC_IA64_IMM14
3557 ENUMX
3558 BFD_RELOC_IA64_IMM22
3559 ENUMX
3560 BFD_RELOC_IA64_IMM64
3561 ENUMX
3562 BFD_RELOC_IA64_DIR32MSB
3563 ENUMX
3564 BFD_RELOC_IA64_DIR32LSB
3565 ENUMX
3566 BFD_RELOC_IA64_DIR64MSB
3567 ENUMX
3568 BFD_RELOC_IA64_DIR64LSB
3569 ENUMX
3570 BFD_RELOC_IA64_GPREL22
3571 ENUMX
3572 BFD_RELOC_IA64_GPREL64I
3573 ENUMX
3574 BFD_RELOC_IA64_GPREL32MSB
3575 ENUMX
3576 BFD_RELOC_IA64_GPREL32LSB
3577 ENUMX
3578 BFD_RELOC_IA64_GPREL64MSB
3579 ENUMX
3580 BFD_RELOC_IA64_GPREL64LSB
3581 ENUMX
3582 BFD_RELOC_IA64_LTOFF22
3583 ENUMX
3584 BFD_RELOC_IA64_LTOFF64I
3585 ENUMX
3586 BFD_RELOC_IA64_PLTOFF22
3587 ENUMX
3588 BFD_RELOC_IA64_PLTOFF64I
3589 ENUMX
3590 BFD_RELOC_IA64_PLTOFF64MSB
3591 ENUMX
3592 BFD_RELOC_IA64_PLTOFF64LSB
3593 ENUMX
3594 BFD_RELOC_IA64_FPTR64I
3595 ENUMX
3596 BFD_RELOC_IA64_FPTR32MSB
3597 ENUMX
3598 BFD_RELOC_IA64_FPTR32LSB
3599 ENUMX
3600 BFD_RELOC_IA64_FPTR64MSB
3601 ENUMX
3602 BFD_RELOC_IA64_FPTR64LSB
3603 ENUMX
3604 BFD_RELOC_IA64_PCREL21B
3605 ENUMX
3606 BFD_RELOC_IA64_PCREL21BI
3607 ENUMX
3608 BFD_RELOC_IA64_PCREL21M
3609 ENUMX
3610 BFD_RELOC_IA64_PCREL21F
3611 ENUMX
3612 BFD_RELOC_IA64_PCREL22
3613 ENUMX
3614 BFD_RELOC_IA64_PCREL60B
3615 ENUMX
3616 BFD_RELOC_IA64_PCREL64I
3617 ENUMX
3618 BFD_RELOC_IA64_PCREL32MSB
3619 ENUMX
3620 BFD_RELOC_IA64_PCREL32LSB
3621 ENUMX
3622 BFD_RELOC_IA64_PCREL64MSB
3623 ENUMX
3624 BFD_RELOC_IA64_PCREL64LSB
3625 ENUMX
3626 BFD_RELOC_IA64_LTOFF_FPTR22
3627 ENUMX
3628 BFD_RELOC_IA64_LTOFF_FPTR64I
3629 ENUMX
3630 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3631 ENUMX
3632 BFD_RELOC_IA64_LTOFF_FPTR32LSB
3633 ENUMX
3634 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3635 ENUMX
3636 BFD_RELOC_IA64_LTOFF_FPTR64LSB
3637 ENUMX
3638 BFD_RELOC_IA64_SEGREL32MSB
3639 ENUMX
3640 BFD_RELOC_IA64_SEGREL32LSB
3641 ENUMX
3642 BFD_RELOC_IA64_SEGREL64MSB
3643 ENUMX
3644 BFD_RELOC_IA64_SEGREL64LSB
3645 ENUMX
3646 BFD_RELOC_IA64_SECREL32MSB
3647 ENUMX
3648 BFD_RELOC_IA64_SECREL32LSB
3649 ENUMX
3650 BFD_RELOC_IA64_SECREL64MSB
3651 ENUMX
3652 BFD_RELOC_IA64_SECREL64LSB
3653 ENUMX
3654 BFD_RELOC_IA64_REL32MSB
3655 ENUMX
3656 BFD_RELOC_IA64_REL32LSB
3657 ENUMX
3658 BFD_RELOC_IA64_REL64MSB
3659 ENUMX
3660 BFD_RELOC_IA64_REL64LSB
3661 ENUMX
3662 BFD_RELOC_IA64_LTV32MSB
3663 ENUMX
3664 BFD_RELOC_IA64_LTV32LSB
3665 ENUMX
3666 BFD_RELOC_IA64_LTV64MSB
3667 ENUMX
3668 BFD_RELOC_IA64_LTV64LSB
3669 ENUMX
3670 BFD_RELOC_IA64_IPLTMSB
3671 ENUMX
3672 BFD_RELOC_IA64_IPLTLSB
3673 ENUMX
3674 BFD_RELOC_IA64_COPY
3675 ENUMX
3676 BFD_RELOC_IA64_LTOFF22X
3677 ENUMX
3678 BFD_RELOC_IA64_LDXMOV
3679 ENUMX
3680 BFD_RELOC_IA64_TPREL14
3681 ENUMX
3682 BFD_RELOC_IA64_TPREL22
3683 ENUMX
3684 BFD_RELOC_IA64_TPREL64I
3685 ENUMX
3686 BFD_RELOC_IA64_TPREL64MSB
3687 ENUMX
3688 BFD_RELOC_IA64_TPREL64LSB
3689 ENUMX
3690 BFD_RELOC_IA64_LTOFF_TPREL22
3691 ENUMX
3692 BFD_RELOC_IA64_DTPMOD64MSB
3693 ENUMX
3694 BFD_RELOC_IA64_DTPMOD64LSB
3695 ENUMX
3696 BFD_RELOC_IA64_LTOFF_DTPMOD22
3697 ENUMX
3698 BFD_RELOC_IA64_DTPREL14
3699 ENUMX
3700 BFD_RELOC_IA64_DTPREL22
3701 ENUMX
3702 BFD_RELOC_IA64_DTPREL64I
3703 ENUMX
3704 BFD_RELOC_IA64_DTPREL32MSB
3705 ENUMX
3706 BFD_RELOC_IA64_DTPREL32LSB
3707 ENUMX
3708 BFD_RELOC_IA64_DTPREL64MSB
3709 ENUMX
3710 BFD_RELOC_IA64_DTPREL64LSB
3711 ENUMX
3712 BFD_RELOC_IA64_LTOFF_DTPREL22
3713 ENUMDOC
3714 Intel IA64 Relocations.
3715
3716 ENUM
3717 BFD_RELOC_M68HC11_HI8
3718 ENUMDOC
3719 Motorola 68HC11 reloc.
3720 This is the 8 bit high part of an absolute address.
3721 ENUM
3722 BFD_RELOC_M68HC11_LO8
3723 ENUMDOC
3724 Motorola 68HC11 reloc.
3725 This is the 8 bit low part of an absolute address.
3726 ENUM
3727 BFD_RELOC_M68HC11_3B
3728 ENUMDOC
3729 Motorola 68HC11 reloc.
3730 This is the 3 bit of a value.
3731 ENUM
3732 BFD_RELOC_M68HC11_RL_JUMP
3733 ENUMDOC
3734 Motorola 68HC11 reloc.
3735 This reloc marks the beginning of a jump/call instruction.
3736 It is used for linker relaxation to correctly identify beginning
3737 of instruction and change some branches to use PC-relative
3738 addressing mode.
3739 ENUM
3740 BFD_RELOC_M68HC11_RL_GROUP
3741 ENUMDOC
3742 Motorola 68HC11 reloc.
3743 This reloc marks a group of several instructions that gcc generates
3744 and for which the linker relaxation pass can modify and/or remove
3745 some of them.
3746 ENUM
3747 BFD_RELOC_M68HC11_LO16
3748 ENUMDOC
3749 Motorola 68HC11 reloc.
3750 This is the 16-bit lower part of an address. It is used for 'call'
3751 instruction to specify the symbol address without any special
3752 transformation (due to memory bank window).
3753 ENUM
3754 BFD_RELOC_M68HC11_PAGE
3755 ENUMDOC
3756 Motorola 68HC11 reloc.
3757 This is a 8-bit reloc that specifies the page number of an address.
3758 It is used by 'call' instruction to specify the page number of
3759 the symbol.
3760 ENUM
3761 BFD_RELOC_M68HC11_24
3762 ENUMDOC
3763 Motorola 68HC11 reloc.
3764 This is a 24-bit reloc that represents the address with a 16-bit
3765 value and a 8-bit page number. The symbol address is transformed
3766 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3767
3768 ENUM
3769 BFD_RELOC_CRIS_BDISP8
3770 ENUMX
3771 BFD_RELOC_CRIS_UNSIGNED_5
3772 ENUMX
3773 BFD_RELOC_CRIS_SIGNED_6
3774 ENUMX
3775 BFD_RELOC_CRIS_UNSIGNED_6
3776 ENUMX
3777 BFD_RELOC_CRIS_UNSIGNED_4
3778 ENUMDOC
3779 These relocs are only used within the CRIS assembler. They are not
3780 (at present) written to any object files.
3781 ENUM
3782 BFD_RELOC_CRIS_COPY
3783 ENUMX
3784 BFD_RELOC_CRIS_GLOB_DAT
3785 ENUMX
3786 BFD_RELOC_CRIS_JUMP_SLOT
3787 ENUMX
3788 BFD_RELOC_CRIS_RELATIVE
3789 ENUMDOC
3790 Relocs used in ELF shared libraries for CRIS.
3791 ENUM
3792 BFD_RELOC_CRIS_32_GOT
3793 ENUMDOC
3794 32-bit offset to symbol-entry within GOT.
3795 ENUM
3796 BFD_RELOC_CRIS_16_GOT
3797 ENUMDOC
3798 16-bit offset to symbol-entry within GOT.
3799 ENUM
3800 BFD_RELOC_CRIS_32_GOTPLT
3801 ENUMDOC
3802 32-bit offset to symbol-entry within GOT, with PLT handling.
3803 ENUM
3804 BFD_RELOC_CRIS_16_GOTPLT
3805 ENUMDOC
3806 16-bit offset to symbol-entry within GOT, with PLT handling.
3807 ENUM
3808 BFD_RELOC_CRIS_32_GOTREL
3809 ENUMDOC
3810 32-bit offset to symbol, relative to GOT.
3811 ENUM
3812 BFD_RELOC_CRIS_32_PLT_GOTREL
3813 ENUMDOC
3814 32-bit offset to symbol with PLT entry, relative to GOT.
3815 ENUM
3816 BFD_RELOC_CRIS_32_PLT_PCREL
3817 ENUMDOC
3818 32-bit offset to symbol with PLT entry, relative to this relocation.
3819
3820 ENUM
3821 BFD_RELOC_860_COPY
3822 ENUMX
3823 BFD_RELOC_860_GLOB_DAT
3824 ENUMX
3825 BFD_RELOC_860_JUMP_SLOT
3826 ENUMX
3827 BFD_RELOC_860_RELATIVE
3828 ENUMX
3829 BFD_RELOC_860_PC26
3830 ENUMX
3831 BFD_RELOC_860_PLT26
3832 ENUMX
3833 BFD_RELOC_860_PC16
3834 ENUMX
3835 BFD_RELOC_860_LOW0
3836 ENUMX
3837 BFD_RELOC_860_SPLIT0
3838 ENUMX
3839 BFD_RELOC_860_LOW1
3840 ENUMX
3841 BFD_RELOC_860_SPLIT1
3842 ENUMX
3843 BFD_RELOC_860_LOW2
3844 ENUMX
3845 BFD_RELOC_860_SPLIT2
3846 ENUMX
3847 BFD_RELOC_860_LOW3
3848 ENUMX
3849 BFD_RELOC_860_LOGOT0
3850 ENUMX
3851 BFD_RELOC_860_SPGOT0
3852 ENUMX
3853 BFD_RELOC_860_LOGOT1
3854 ENUMX
3855 BFD_RELOC_860_SPGOT1
3856 ENUMX
3857 BFD_RELOC_860_LOGOTOFF0
3858 ENUMX
3859 BFD_RELOC_860_SPGOTOFF0
3860 ENUMX
3861 BFD_RELOC_860_LOGOTOFF1
3862 ENUMX
3863 BFD_RELOC_860_SPGOTOFF1
3864 ENUMX
3865 BFD_RELOC_860_LOGOTOFF2
3866 ENUMX
3867 BFD_RELOC_860_LOGOTOFF3
3868 ENUMX
3869 BFD_RELOC_860_LOPC
3870 ENUMX
3871 BFD_RELOC_860_HIGHADJ
3872 ENUMX
3873 BFD_RELOC_860_HAGOT
3874 ENUMX
3875 BFD_RELOC_860_HAGOTOFF
3876 ENUMX
3877 BFD_RELOC_860_HAPC
3878 ENUMX
3879 BFD_RELOC_860_HIGH
3880 ENUMX
3881 BFD_RELOC_860_HIGOT
3882 ENUMX
3883 BFD_RELOC_860_HIGOTOFF
3884 ENUMDOC
3885 Intel i860 Relocations.
3886
3887 ENUM
3888 BFD_RELOC_OPENRISC_ABS_26
3889 ENUMX
3890 BFD_RELOC_OPENRISC_REL_26
3891 ENUMDOC
3892 OpenRISC Relocations.
3893
3894 ENUM
3895 BFD_RELOC_H8_DIR16A8
3896 ENUMX
3897 BFD_RELOC_H8_DIR16R8
3898 ENUMX
3899 BFD_RELOC_H8_DIR24A8
3900 ENUMX
3901 BFD_RELOC_H8_DIR24R8
3902 ENUMX
3903 BFD_RELOC_H8_DIR32A16
3904 ENUMDOC
3905 H8 elf Relocations.
3906
3907 ENUM
3908 BFD_RELOC_XSTORMY16_REL_12
3909 ENUMX
3910 BFD_RELOC_XSTORMY16_12
3911 ENUMX
3912 BFD_RELOC_XSTORMY16_24
3913 ENUMX
3914 BFD_RELOC_XSTORMY16_FPTR16
3915 ENUMDOC
3916 Sony Xstormy16 Relocations.
3917
3918 ENUM
3919 BFD_RELOC_VAX_GLOB_DAT
3920 ENUMX
3921 BFD_RELOC_VAX_JMP_SLOT
3922 ENUMX
3923 BFD_RELOC_VAX_RELATIVE
3924 ENUMDOC
3925 Relocations used by VAX ELF.
3926
3927 ENUM
3928 BFD_RELOC_MSP430_10_PCREL
3929 ENUMX
3930 BFD_RELOC_MSP430_16_PCREL
3931 ENUMX
3932 BFD_RELOC_MSP430_16
3933 ENUMX
3934 BFD_RELOC_MSP430_16_PCREL_BYTE
3935 ENUMX
3936 BFD_RELOC_MSP430_16_BYTE
3937 ENUMDOC
3938 msp430 specific relocation codes
3939
3940 ENUM
3941 BFD_RELOC_IQ2000_OFFSET_16
3942 ENUMX
3943 BFD_RELOC_IQ2000_OFFSET_21
3944 ENUMX
3945 BFD_RELOC_IQ2000_UHI16
3946 ENUMDOC
3947 IQ2000 Relocations.
3948
3949 ENUM
3950 BFD_RELOC_XTENSA_RTLD
3951 ENUMDOC
3952 Special Xtensa relocation used only by PLT entries in ELF shared
3953 objects to indicate that the runtime linker should set the value
3954 to one of its own internal functions or data structures.
3955 ENUM
3956 BFD_RELOC_XTENSA_GLOB_DAT
3957 ENUMX
3958 BFD_RELOC_XTENSA_JMP_SLOT
3959 ENUMX
3960 BFD_RELOC_XTENSA_RELATIVE
3961 ENUMDOC
3962 Xtensa relocations for ELF shared objects.
3963 ENUM
3964 BFD_RELOC_XTENSA_PLT
3965 ENUMDOC
3966 Xtensa relocation used in ELF object files for symbols that may require
3967 PLT entries. Otherwise, this is just a generic 32-bit relocation.
3968 ENUM
3969 BFD_RELOC_XTENSA_OP0
3970 ENUMX
3971 BFD_RELOC_XTENSA_OP1
3972 ENUMX
3973 BFD_RELOC_XTENSA_OP2
3974 ENUMDOC
3975 Generic Xtensa relocations. Only the operand number is encoded
3976 in the relocation. The details are determined by extracting the
3977 instruction opcode.
3978 ENUM
3979 BFD_RELOC_XTENSA_ASM_EXPAND
3980 ENUMDOC
3981 Xtensa relocation to mark that the assembler expanded the
3982 instructions from an original target. The expansion size is
3983 encoded in the reloc size.
3984 ENUM
3985 BFD_RELOC_XTENSA_ASM_SIMPLIFY
3986 ENUMDOC
3987 Xtensa relocation to mark that the linker should simplify
3988 assembler-expanded instructions. This is commonly used
3989 internally by the linker after analysis of a
3990 BFD_RELOC_XTENSA_ASM_EXPAND.
3991
3992 ENDSENUM
3993 BFD_RELOC_UNUSED
3994 CODE_FRAGMENT
3995 .
3996 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
3997 */
3998
3999 /*
4000 FUNCTION
4001 bfd_reloc_type_lookup
4002
4003 SYNOPSIS
4004 reloc_howto_type *bfd_reloc_type_lookup
4005 (bfd *abfd, bfd_reloc_code_real_type code);
4006
4007 DESCRIPTION
4008 Return a pointer to a howto structure which, when
4009 invoked, will perform the relocation @var{code} on data from the
4010 architecture noted.
4011
4012 */
4013
4014 reloc_howto_type *
4015 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4016 {
4017 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
4018 }
4019
4020 static reloc_howto_type bfd_howto_32 =
4021 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
4022
4023 /*
4024 INTERNAL_FUNCTION
4025 bfd_default_reloc_type_lookup
4026
4027 SYNOPSIS
4028 reloc_howto_type *bfd_default_reloc_type_lookup
4029 (bfd *abfd, bfd_reloc_code_real_type code);
4030
4031 DESCRIPTION
4032 Provides a default relocation lookup routine for any architecture.
4033
4034 */
4035
4036 reloc_howto_type *
4037 bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
4038 {
4039 switch (code)
4040 {
4041 case BFD_RELOC_CTOR:
4042 /* The type of reloc used in a ctor, which will be as wide as the
4043 address - so either a 64, 32, or 16 bitter. */
4044 switch (bfd_get_arch_info (abfd)->bits_per_address)
4045 {
4046 case 64:
4047 BFD_FAIL ();
4048 case 32:
4049 return &bfd_howto_32;
4050 case 16:
4051 BFD_FAIL ();
4052 default:
4053 BFD_FAIL ();
4054 }
4055 default:
4056 BFD_FAIL ();
4057 }
4058 return NULL;
4059 }
4060
4061 /*
4062 FUNCTION
4063 bfd_get_reloc_code_name
4064
4065 SYNOPSIS
4066 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
4067
4068 DESCRIPTION
4069 Provides a printable name for the supplied relocation code.
4070 Useful mainly for printing error messages.
4071 */
4072
4073 const char *
4074 bfd_get_reloc_code_name (bfd_reloc_code_real_type code)
4075 {
4076 if (code > BFD_RELOC_UNUSED)
4077 return 0;
4078 return bfd_reloc_code_real_names[code];
4079 }
4080
4081 /*
4082 INTERNAL_FUNCTION
4083 bfd_generic_relax_section
4084
4085 SYNOPSIS
4086 bfd_boolean bfd_generic_relax_section
4087 (bfd *abfd,
4088 asection *section,
4089 struct bfd_link_info *,
4090 bfd_boolean *);
4091
4092 DESCRIPTION
4093 Provides default handling for relaxing for back ends which
4094 don't do relaxing -- i.e., does nothing except make sure that the
4095 final size of the section is set.
4096 */
4097
4098 bfd_boolean
4099 bfd_generic_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
4100 asection *section ATTRIBUTE_UNUSED,
4101 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
4102 bfd_boolean *again)
4103 {
4104 /* We're not relaxing the section, so just copy the size info if it's
4105 zero. Someone else, like bfd_merge_sections, might have set it, so
4106 don't overwrite a non-zero value. */
4107 if (section->_cooked_size == 0)
4108 section->_cooked_size = section->_raw_size;
4109 *again = FALSE;
4110 return TRUE;
4111 }
4112
4113 /*
4114 INTERNAL_FUNCTION
4115 bfd_generic_gc_sections
4116
4117 SYNOPSIS
4118 bfd_boolean bfd_generic_gc_sections
4119 (bfd *, struct bfd_link_info *);
4120
4121 DESCRIPTION
4122 Provides default handling for relaxing for back ends which
4123 don't do section gc -- i.e., does nothing.
4124 */
4125
4126 bfd_boolean
4127 bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
4128 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4129 {
4130 return TRUE;
4131 }
4132
4133 /*
4134 INTERNAL_FUNCTION
4135 bfd_generic_merge_sections
4136
4137 SYNOPSIS
4138 bfd_boolean bfd_generic_merge_sections
4139 (bfd *, struct bfd_link_info *);
4140
4141 DESCRIPTION
4142 Provides default handling for SEC_MERGE section merging for back ends
4143 which don't have SEC_MERGE support -- i.e., does nothing.
4144 */
4145
4146 bfd_boolean
4147 bfd_generic_merge_sections (bfd *abfd ATTRIBUTE_UNUSED,
4148 struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
4149 {
4150 return TRUE;
4151 }
4152
4153 /*
4154 INTERNAL_FUNCTION
4155 bfd_generic_get_relocated_section_contents
4156
4157 SYNOPSIS
4158 bfd_byte *bfd_generic_get_relocated_section_contents
4159 (bfd *abfd,
4160 struct bfd_link_info *link_info,
4161 struct bfd_link_order *link_order,
4162 bfd_byte *data,
4163 bfd_boolean relocatable,
4164 asymbol **symbols);
4165
4166 DESCRIPTION
4167 Provides default handling of relocation effort for back ends
4168 which can't be bothered to do it efficiently.
4169
4170 */
4171
4172 bfd_byte *
4173 bfd_generic_get_relocated_section_contents (bfd *abfd,
4174 struct bfd_link_info *link_info,
4175 struct bfd_link_order *link_order,
4176 bfd_byte *data,
4177 bfd_boolean relocatable,
4178 asymbol **symbols)
4179 {
4180 /* Get enough memory to hold the stuff. */
4181 bfd *input_bfd = link_order->u.indirect.section->owner;
4182 asection *input_section = link_order->u.indirect.section;
4183
4184 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4185 arelent **reloc_vector = NULL;
4186 long reloc_count;
4187
4188 if (reloc_size < 0)
4189 goto error_return;
4190
4191 reloc_vector = bfd_malloc (reloc_size);
4192 if (reloc_vector == NULL && reloc_size != 0)
4193 goto error_return;
4194
4195 /* Read in the section. */
4196 if (!bfd_get_section_contents (input_bfd,
4197 input_section,
4198 data,
4199 0,
4200 input_section->_raw_size))
4201 goto error_return;
4202
4203 /* Don't set input_section->_cooked_size here. The caller has set
4204 _cooked_size or called bfd_relax_section, which sets _cooked_size.
4205 Despite using this generic relocation function, some targets perform
4206 target-specific relaxation or string merging, which happens before
4207 this function is called. We do not want to clobber the _cooked_size
4208 they computed. */
4209
4210 input_section->reloc_done = TRUE;
4211
4212 reloc_count = bfd_canonicalize_reloc (input_bfd,
4213 input_section,
4214 reloc_vector,
4215 symbols);
4216 if (reloc_count < 0)
4217 goto error_return;
4218
4219 if (reloc_count > 0)
4220 {
4221 arelent **parent;
4222 for (parent = reloc_vector; *parent != NULL; parent++)
4223 {
4224 char *error_message = NULL;
4225 bfd_reloc_status_type r =
4226 bfd_perform_relocation (input_bfd,
4227 *parent,
4228 data,
4229 input_section,
4230 relocatable ? abfd : NULL,
4231 &error_message);
4232
4233 if (relocatable)
4234 {
4235 asection *os = input_section->output_section;
4236
4237 /* A partial link, so keep the relocs. */
4238 os->orelocation[os->reloc_count] = *parent;
4239 os->reloc_count++;
4240 }
4241
4242 if (r != bfd_reloc_ok)
4243 {
4244 switch (r)
4245 {
4246 case bfd_reloc_undefined:
4247 if (!((*link_info->callbacks->undefined_symbol)
4248 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4249 input_bfd, input_section, (*parent)->address,
4250 TRUE)))
4251 goto error_return;
4252 break;
4253 case bfd_reloc_dangerous:
4254 BFD_ASSERT (error_message != NULL);
4255 if (!((*link_info->callbacks->reloc_dangerous)
4256 (link_info, error_message, input_bfd, input_section,
4257 (*parent)->address)))
4258 goto error_return;
4259 break;
4260 case bfd_reloc_overflow:
4261 if (!((*link_info->callbacks->reloc_overflow)
4262 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4263 (*parent)->howto->name, (*parent)->addend,
4264 input_bfd, input_section, (*parent)->address)))
4265 goto error_return;
4266 break;
4267 case bfd_reloc_outofrange:
4268 default:
4269 abort ();
4270 break;
4271 }
4272
4273 }
4274 }
4275 }
4276 if (reloc_vector != NULL)
4277 free (reloc_vector);
4278 return data;
4279
4280 error_return:
4281 if (reloc_vector != NULL)
4282 free (reloc_vector);
4283 return NULL;
4284 }
A mirror of the official binutils-gdb repository