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* Reverted 2003-03-02's patch.
[deliverable/binutils-gdb.git] / bfd / reloc.c
1 /* BFD support for handling relocation entries.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003
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 symbol_cache_entry **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
126 the pointer into the table returned by the back end's
127 <<get_symtab>> action. @xref{Symbols}. The symbol is referenced
128 through a pointer to a pointer so that tools like the linker
129 can fix up all the symbols of the same name by modifying only
130 one pointer. The relocation routine looks in the symbol and
131 uses the base of the section the symbol is attached to and the
132 value of the symbol as the initial relocation offset. If the
133 symbol pointer is zero, then the section provided is looked up.
134
135 o <<address>>
136
137 The <<address>> field gives the offset in bytes from the base of
138 the section data which owns the relocation record to the first
139 byte of relocatable information. The actual data relocated
140 will be relative to this point; for example, a relocation
141 type which modifies the bottom two bytes of a four byte word
142 would not touch the first byte pointed to in a big endian
143 world.
144
145 o <<addend>>
146
147 The <<addend>> is a value provided by the back end to be added (!)
148 to the relocation offset. Its interpretation is dependent upon
149 the howto. For example, on the 68k the code:
150
151 | char foo[];
152 | main()
153 | {
154 | return foo[0x12345678];
155 | }
156
157 Could be compiled into:
158
159 | linkw fp,#-4
160 | moveb @@#12345678,d0
161 | extbl d0
162 | unlk fp
163 | rts
164
165 This could create a reloc pointing to <<foo>>, but leave the
166 offset in the data, something like:
167
168 |RELOCATION RECORDS FOR [.text]:
169 |offset type value
170 |00000006 32 _foo
171 |
172 |00000000 4e56 fffc ; linkw fp,#-4
173 |00000004 1039 1234 5678 ; moveb @@#12345678,d0
174 |0000000a 49c0 ; extbl d0
175 |0000000c 4e5e ; unlk fp
176 |0000000e 4e75 ; rts
177
178 Using coff and an 88k, some instructions don't have enough
179 space in them to represent the full address range, and
180 pointers have to be loaded in two parts. So you'd get something like:
181
182 | or.u r13,r0,hi16(_foo+0x12345678)
183 | ld.b r2,r13,lo16(_foo+0x12345678)
184 | jmp r1
185
186 This should create two relocs, both pointing to <<_foo>>, and with
187 0x12340000 in their addend field. The data would consist of:
188
189 |RELOCATION RECORDS FOR [.text]:
190 |offset type value
191 |00000002 HVRT16 _foo+0x12340000
192 |00000006 LVRT16 _foo+0x12340000
193 |
194 |00000000 5da05678 ; or.u r13,r0,0x5678
195 |00000004 1c4d5678 ; ld.b r2,r13,0x5678
196 |00000008 f400c001 ; jmp r1
197
198 The relocation routine digs out the value from the data, adds
199 it to the addend to get the original offset, and then adds the
200 value of <<_foo>>. Note that all 32 bits have to be kept around
201 somewhere, to cope with carry from bit 15 to bit 16.
202
203 One further example is the sparc and the a.out format. The
204 sparc has a similar problem to the 88k, in that some
205 instructions don't have room for an entire offset, but on the
206 sparc the parts are created in odd sized lumps. The designers of
207 the a.out format chose to not use the data within the section
208 for storing part of the offset; all the offset is kept within
209 the reloc. Anything in the data should be ignored.
210
211 | save %sp,-112,%sp
212 | sethi %hi(_foo+0x12345678),%g2
213 | ldsb [%g2+%lo(_foo+0x12345678)],%i0
214 | ret
215 | restore
216
217 Both relocs contain a pointer to <<foo>>, and the offsets
218 contain junk.
219
220 |RELOCATION RECORDS FOR [.text]:
221 |offset type value
222 |00000004 HI22 _foo+0x12345678
223 |00000008 LO10 _foo+0x12345678
224 |
225 |00000000 9de3bf90 ; save %sp,-112,%sp
226 |00000004 05000000 ; sethi %hi(_foo+0),%g2
227 |00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0
228 |0000000c 81c7e008 ; ret
229 |00000010 81e80000 ; restore
230
231 o <<howto>>
232
233 The <<howto>> field can be imagined as a
234 relocation instruction. It is a pointer to a structure which
235 contains information on what to do with all of the other
236 information in the reloc record and data section. A back end
237 would normally have a relocation instruction set and turn
238 relocations into pointers to the correct structure on input -
239 but it would be possible to create each howto field on demand.
240
241 */
242
243 /*
244 SUBSUBSECTION
245 <<enum complain_overflow>>
246
247 Indicates what sort of overflow checking should be done when
248 performing a relocation.
249
250 CODE_FRAGMENT
251 .
252 .enum complain_overflow
253 .{
254 . {* Do not complain on overflow. *}
255 . complain_overflow_dont,
256 .
257 . {* Complain if the bitfield overflows, whether it is considered
258 . as signed or unsigned. *}
259 . complain_overflow_bitfield,
260 .
261 . {* Complain if the value overflows when considered as signed
262 . number. *}
263 . complain_overflow_signed,
264 .
265 . {* Complain if the value overflows when considered as an
266 . unsigned number. *}
267 . complain_overflow_unsigned
268 .};
269
270 */
271
272 /*
273 SUBSUBSECTION
274 <<reloc_howto_type>>
275
276 The <<reloc_howto_type>> is a structure which contains all the
277 information that libbfd needs to know to tie up a back end's data.
278
279 CODE_FRAGMENT
280 .struct symbol_cache_entry; {* Forward declaration. *}
281 .
282 .struct reloc_howto_struct
283 .{
284 . {* The type field has mainly a documentary use - the back end can
285 . do what it wants with it, though normally the back end's
286 . external idea of what a reloc number is stored
287 . in this field. For example, a PC relative word relocation
288 . in a coff environment has the type 023 - because that's
289 . what the outside world calls a R_PCRWORD reloc. *}
290 . unsigned int type;
291 .
292 . {* The value the final relocation is shifted right by. This drops
293 . unwanted data from the relocation. *}
294 . unsigned int rightshift;
295 .
296 . {* The size of the item to be relocated. This is *not* a
297 . power-of-two measure. To get the number of bytes operated
298 . on by a type of relocation, use bfd_get_reloc_size. *}
299 . int size;
300 .
301 . {* The number of bits in the item to be relocated. This is used
302 . when doing overflow checking. *}
303 . unsigned int bitsize;
304 .
305 . {* Notes that the relocation is relative to the location in the
306 . data section of the addend. The relocation function will
307 . subtract from the relocation value the address of the location
308 . being relocated. *}
309 . bfd_boolean pc_relative;
310 .
311 . {* The bit position of the reloc value in the destination.
312 . The relocated value is left shifted by this amount. *}
313 . unsigned int bitpos;
314 .
315 . {* What type of overflow error should be checked for when
316 . relocating. *}
317 . enum complain_overflow complain_on_overflow;
318 .
319 . {* If this field is non null, then the supplied function is
320 . called rather than the normal function. This allows really
321 . strange relocation methods to be accomodated (e.g., i960 callj
322 . instructions). *}
323 . bfd_reloc_status_type (*special_function)
324 . PARAMS ((bfd *, arelent *, struct symbol_cache_entry *, PTR, asection *,
325 . bfd *, char **));
326 .
327 . {* The textual name of the relocation type. *}
328 . char *name;
329 .
330 . {* Some formats record a relocation addend in the section contents
331 . rather than with the relocation. For ELF formats this is the
332 . distinction between USE_REL and USE_RELA (though the code checks
333 . for USE_REL == 1/0). The value of this field is TRUE if the
334 . addend is recorded with the section contents; when performing a
335 . partial link (ld -r) the section contents (the data) will be
336 . modified. The value of this field is FALSE if addends are
337 . recorded with the relocation (in arelent.addend); when performing
338 . a partial link the relocation will be modified.
339 . All relocations for all ELF USE_RELA targets should set this field
340 . to FALSE (values of TRUE should be looked on with suspicion).
341 . However, the converse is not true: not all relocations of all ELF
342 . USE_REL targets set this field to TRUE. Why this is so is peculiar
343 . to each particular target. For relocs that aren't used in partial
344 . links (e.g. GOT stuff) it doesn't matter what this is set to. *}
345 . bfd_boolean partial_inplace;
346 .
347 . {* src_mask selects the part of the instruction (or data) to be used
348 . in the relocation sum. If the target relocations don't have an
349 . addend in the reloc, eg. ELF USE_REL, src_mask will normally equal
350 . dst_mask to extract the addend from the section contents. If
351 . relocations do have an addend in the reloc, eg. ELF USE_RELA, this
352 . field should be zero. Non-zero values for ELF USE_RELA targets are
353 . bogus as in those cases the value in the dst_mask part of the
354 . section contents should be treated as garbage. *}
355 . bfd_vma src_mask;
356 .
357 . {* dst_mask selects which parts of the instruction (or data) are
358 . replaced with a relocated value. *}
359 . bfd_vma dst_mask;
360 .
361 . {* When some formats create PC relative instructions, they leave
362 . the value of the pc of the place being relocated in the offset
363 . slot of the instruction, so that a PC relative relocation can
364 . be made just by adding in an ordinary offset (e.g., sun3 a.out).
365 . Some formats leave the displacement part of an instruction
366 . empty (e.g., m88k bcs); this flag signals the fact. *}
367 . bfd_boolean pcrel_offset;
368 .};
369 .
370 */
371
372 /*
373 FUNCTION
374 The HOWTO Macro
375
376 DESCRIPTION
377 The HOWTO define is horrible and will go away.
378
379 .#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
380 . { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC }
381
382 DESCRIPTION
383 And will be replaced with the totally magic way. But for the
384 moment, we are compatible, so do it this way.
385
386 .#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
387 . HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
388 . NAME, FALSE, 0, 0, IN)
389 .
390
391 DESCRIPTION
392 This is used to fill in an empty howto entry in an array.
393
394 .#define EMPTY_HOWTO(C) \
395 . HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
396 . NULL, FALSE, 0, 0, FALSE)
397 .
398
399 DESCRIPTION
400 Helper routine to turn a symbol into a relocation value.
401
402 .#define HOWTO_PREPARE(relocation, symbol) \
403 . { \
404 . if (symbol != (asymbol *) NULL) \
405 . { \
406 . if (bfd_is_com_section (symbol->section)) \
407 . { \
408 . relocation = 0; \
409 . } \
410 . else \
411 . { \
412 . relocation = symbol->value; \
413 . } \
414 . } \
415 . }
416 .
417 */
418
419 /*
420 FUNCTION
421 bfd_get_reloc_size
422
423 SYNOPSIS
424 unsigned int bfd_get_reloc_size (reloc_howto_type *);
425
426 DESCRIPTION
427 For a reloc_howto_type that operates on a fixed number of bytes,
428 this returns the number of bytes operated on.
429 */
430
431 unsigned int
432 bfd_get_reloc_size (howto)
433 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
474 bfd_check_overflow
475 (enum complain_overflow how,
476 unsigned int bitsize,
477 unsigned int rightshift,
478 unsigned int addrsize,
479 bfd_vma relocation);
480
481 DESCRIPTION
482 Perform overflow checking on @var{relocation} which has
483 @var{bitsize} significant bits and will be shifted right by
484 @var{rightshift} bits, on a machine with addresses containing
485 @var{addrsize} significant bits. The result is either of
486 @code{bfd_reloc_ok} or @code{bfd_reloc_overflow}.
487
488 */
489
490 bfd_reloc_status_type
491 bfd_check_overflow (how, bitsize, rightshift, addrsize, relocation)
492 enum complain_overflow how;
493 unsigned int bitsize;
494 unsigned int rightshift;
495 unsigned int addrsize;
496 bfd_vma relocation;
497 {
498 bfd_vma fieldmask, addrmask, signmask, ss, a;
499 bfd_reloc_status_type flag = bfd_reloc_ok;
500
501 a = relocation;
502
503 /* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not,
504 we'll be permissive: extra bits in the field mask will
505 automatically extend the address mask for purposes of the
506 overflow check. */
507 fieldmask = N_ONES (bitsize);
508 addrmask = N_ONES (addrsize) | fieldmask;
509
510 switch (how)
511 {
512 case complain_overflow_dont:
513 break;
514
515 case complain_overflow_signed:
516 /* If any sign bits are set, all sign bits must be set. That
517 is, A must be a valid negative address after shifting. */
518 a = (a & addrmask) >> rightshift;
519 signmask = ~ (fieldmask >> 1);
520 ss = a & signmask;
521 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
522 flag = bfd_reloc_overflow;
523 break;
524
525 case complain_overflow_unsigned:
526 /* We have an overflow if the address does not fit in the field. */
527 a = (a & addrmask) >> rightshift;
528 if ((a & ~ fieldmask) != 0)
529 flag = bfd_reloc_overflow;
530 break;
531
532 case complain_overflow_bitfield:
533 /* Bitfields are sometimes signed, sometimes unsigned. We
534 explicitly allow an address wrap too, which means a bitfield
535 of n bits is allowed to store -2**n to 2**n-1. Thus overflow
536 if the value has some, but not all, bits set outside the
537 field. */
538 a >>= rightshift;
539 ss = a & ~ fieldmask;
540 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
541 flag = bfd_reloc_overflow;
542 break;
543
544 default:
545 abort ();
546 }
547
548 return flag;
549 }
550
551 /*
552 FUNCTION
553 bfd_perform_relocation
554
555 SYNOPSIS
556 bfd_reloc_status_type
557 bfd_perform_relocation
558 (bfd *abfd,
559 arelent *reloc_entry,
560 PTR data,
561 asection *input_section,
562 bfd *output_bfd,
563 char **error_message);
564
565 DESCRIPTION
566 If @var{output_bfd} is supplied to this function, the
567 generated image will be relocatable; the relocations are
568 copied to the output file after they have been changed to
569 reflect the new state of the world. There are two ways of
570 reflecting the results of partial linkage in an output file:
571 by modifying the output data in place, and by modifying the
572 relocation record. Some native formats (e.g., basic a.out and
573 basic coff) have no way of specifying an addend in the
574 relocation type, so the addend has to go in the output data.
575 This is no big deal since in these formats the output data
576 slot will always be big enough for the addend. Complex reloc
577 types with addends were invented to solve just this problem.
578 The @var{error_message} argument is set to an error message if
579 this return @code{bfd_reloc_dangerous}.
580
581 */
582
583 bfd_reloc_status_type
584 bfd_perform_relocation (abfd, reloc_entry, data, input_section, output_bfd,
585 error_message)
586 bfd *abfd;
587 arelent *reloc_entry;
588 PTR data;
589 asection *input_section;
590 bfd *output_bfd;
591 char **error_message;
592 {
593 bfd_vma relocation;
594 bfd_reloc_status_type flag = bfd_reloc_ok;
595 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
596 bfd_vma output_base = 0;
597 reloc_howto_type *howto = reloc_entry->howto;
598 asection *reloc_target_output_section;
599 asymbol *symbol;
600
601 symbol = *(reloc_entry->sym_ptr_ptr);
602 if (bfd_is_abs_section (symbol->section)
603 && output_bfd != (bfd *) NULL)
604 {
605 reloc_entry->address += input_section->output_offset;
606 return bfd_reloc_ok;
607 }
608
609 /* If we are not producing relocateable output, return an error if
610 the symbol is not defined. An undefined weak symbol is
611 considered to have a value of zero (SVR4 ABI, p. 4-27). */
612 if (bfd_is_und_section (symbol->section)
613 && (symbol->flags & BSF_WEAK) == 0
614 && output_bfd == (bfd *) NULL)
615 flag = bfd_reloc_undefined;
616
617 /* If there is a function supplied to handle this relocation type,
618 call it. It'll return `bfd_reloc_continue' if further processing
619 can be done. */
620 if (howto->special_function)
621 {
622 bfd_reloc_status_type cont;
623 cont = howto->special_function (abfd, reloc_entry, symbol, data,
624 input_section, output_bfd,
625 error_message);
626 if (cont != bfd_reloc_continue)
627 return cont;
628 }
629
630 /* Is the address of the relocation really within the section? */
631 if (reloc_entry->address > (input_section->_cooked_size
632 / bfd_octets_per_byte (abfd)))
633 return bfd_reloc_outofrange;
634
635 /* Work out which section the relocation is targetted at and the
636 initial relocation command value. */
637
638 /* Get symbol value. (Common symbols are special.) */
639 if (bfd_is_com_section (symbol->section))
640 relocation = 0;
641 else
642 relocation = symbol->value;
643
644 reloc_target_output_section = symbol->section->output_section;
645
646 /* Convert input-section-relative symbol value to absolute. */
647 if ((output_bfd && ! howto->partial_inplace)
648 || reloc_target_output_section == NULL)
649 output_base = 0;
650 else
651 output_base = reloc_target_output_section->vma;
652
653 relocation += output_base + symbol->section->output_offset;
654
655 /* Add in supplied addend. */
656 relocation += reloc_entry->addend;
657
658 /* Here the variable relocation holds the final address of the
659 symbol we are relocating against, plus any addend. */
660
661 if (howto->pc_relative)
662 {
663 /* This is a PC relative relocation. We want to set RELOCATION
664 to the distance between the address of the symbol and the
665 location. RELOCATION is already the address of the symbol.
666
667 We start by subtracting the address of the section containing
668 the location.
669
670 If pcrel_offset is set, we must further subtract the position
671 of the location within the section. Some targets arrange for
672 the addend to be the negative of the position of the location
673 within the section; for example, i386-aout does this. For
674 i386-aout, pcrel_offset is FALSE. Some other targets do not
675 include the position of the location; for example, m88kbcs,
676 or ELF. For those targets, pcrel_offset is TRUE.
677
678 If we are producing relocateable output, then we must ensure
679 that this reloc will be correctly computed when the final
680 relocation is done. If pcrel_offset is FALSE we want to wind
681 up with the negative of the location within the section,
682 which means we must adjust the existing addend by the change
683 in the location within the section. If pcrel_offset is TRUE
684 we do not want to adjust the existing addend at all.
685
686 FIXME: This seems logical to me, but for the case of
687 producing relocateable output it is not what the code
688 actually does. I don't want to change it, because it seems
689 far too likely that something will break. */
690
691 relocation -=
692 input_section->output_section->vma + input_section->output_offset;
693
694 if (howto->pcrel_offset)
695 relocation -= reloc_entry->address;
696 }
697
698 if (output_bfd != (bfd *) NULL)
699 {
700 if (! howto->partial_inplace)
701 {
702 /* This is a partial relocation, and we want to apply the relocation
703 to the reloc entry rather than the raw data. Modify the reloc
704 inplace to reflect what we now know. */
705 reloc_entry->addend = relocation;
706 reloc_entry->address += input_section->output_offset;
707 return flag;
708 }
709 else
710 {
711 /* This is a partial relocation, but inplace, so modify the
712 reloc record a bit.
713
714 If we've relocated with a symbol with a section, change
715 into a ref to the section belonging to the symbol. */
716
717 reloc_entry->address += input_section->output_offset;
718
719 /* WTF?? */
720 if (abfd->xvec->flavour == bfd_target_coff_flavour
721 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
722 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
723 {
724 #if 1
725 /* For m68k-coff, the addend was being subtracted twice during
726 relocation with -r. Removing the line below this comment
727 fixes that problem; see PR 2953.
728
729 However, Ian wrote the following, regarding removing the line below,
730 which explains why it is still enabled: --djm
731
732 If you put a patch like that into BFD you need to check all the COFF
733 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
734 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
735 problem in a different way. There may very well be a reason that the
736 code works as it does.
737
738 Hmmm. The first obvious point is that bfd_perform_relocation should
739 not have any tests that depend upon the flavour. It's seem like
740 entirely the wrong place for such a thing. The second obvious point
741 is that the current code ignores the reloc addend when producing
742 relocateable output for COFF. That's peculiar. In fact, I really
743 have no idea what the point of the line you want to remove is.
744
745 A typical COFF reloc subtracts the old value of the symbol and adds in
746 the new value to the location in the object file (if it's a pc
747 relative reloc it adds the difference between the symbol value and the
748 location). When relocating we need to preserve that property.
749
750 BFD handles this by setting the addend to the negative of the old
751 value of the symbol. Unfortunately it handles common symbols in a
752 non-standard way (it doesn't subtract the old value) but that's a
753 different story (we can't change it without losing backward
754 compatibility with old object files) (coff-i386 does subtract the old
755 value, to be compatible with existing coff-i386 targets, like SCO).
756
757 So everything works fine when not producing relocateable output. When
758 we are producing relocateable output, logically we should do exactly
759 what we do when not producing relocateable output. Therefore, your
760 patch is correct. In fact, it should probably always just set
761 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
762 add the value into the object file. This won't hurt the COFF code,
763 which doesn't use the addend; I'm not sure what it will do to other
764 formats (the thing to check for would be whether any formats both use
765 the addend and set partial_inplace).
766
767 When I wanted to make coff-i386 produce relocateable output, I ran
768 into the problem that you are running into: I wanted to remove that
769 line. Rather than risk it, I made the coff-i386 relocs use a special
770 function; it's coff_i386_reloc in coff-i386.c. The function
771 specifically adds the addend field into the object file, knowing that
772 bfd_perform_relocation is not going to. If you remove that line, then
773 coff-i386.c will wind up adding the addend field in twice. It's
774 trivial to fix; it just needs to be done.
775
776 The problem with removing the line is just that it may break some
777 working code. With BFD it's hard to be sure of anything. The right
778 way to deal with this is simply to build and test at least all the
779 supported COFF targets. It should be straightforward if time and disk
780 space consuming. For each target:
781 1) build the linker
782 2) generate some executable, and link it using -r (I would
783 probably use paranoia.o and link against newlib/libc.a, which
784 for all the supported targets would be available in
785 /usr/cygnus/progressive/H-host/target/lib/libc.a).
786 3) make the change to reloc.c
787 4) rebuild the linker
788 5) repeat step 2
789 6) if the resulting object files are the same, you have at least
790 made it no worse
791 7) if they are different you have to figure out which version is
792 right
793 */
794 relocation -= reloc_entry->addend;
795 #endif
796 reloc_entry->addend = 0;
797 }
798 else
799 {
800 reloc_entry->addend = relocation;
801 }
802 }
803 }
804 else
805 {
806 reloc_entry->addend = 0;
807 }
808
809 /* FIXME: This overflow checking is incomplete, because the value
810 might have overflowed before we get here. For a correct check we
811 need to compute the value in a size larger than bitsize, but we
812 can't reasonably do that for a reloc the same size as a host
813 machine word.
814 FIXME: We should also do overflow checking on the result after
815 adding in the value contained in the object file. */
816 if (howto->complain_on_overflow != complain_overflow_dont
817 && flag == bfd_reloc_ok)
818 flag = bfd_check_overflow (howto->complain_on_overflow,
819 howto->bitsize,
820 howto->rightshift,
821 bfd_arch_bits_per_address (abfd),
822 relocation);
823
824 /* Either we are relocating all the way, or we don't want to apply
825 the relocation to the reloc entry (probably because there isn't
826 any room in the output format to describe addends to relocs). */
827
828 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
829 (OSF version 1.3, compiler version 3.11). It miscompiles the
830 following program:
831
832 struct str
833 {
834 unsigned int i0;
835 } s = { 0 };
836
837 int
838 main ()
839 {
840 unsigned long x;
841
842 x = 0x100000000;
843 x <<= (unsigned long) s.i0;
844 if (x == 0)
845 printf ("failed\n");
846 else
847 printf ("succeeded (%lx)\n", x);
848 }
849 */
850
851 relocation >>= (bfd_vma) howto->rightshift;
852
853 /* Shift everything up to where it's going to be used. */
854 relocation <<= (bfd_vma) howto->bitpos;
855
856 /* Wait for the day when all have the mask in them. */
857
858 /* What we do:
859 i instruction to be left alone
860 o offset within instruction
861 r relocation offset to apply
862 S src mask
863 D dst mask
864 N ~dst mask
865 A part 1
866 B part 2
867 R result
868
869 Do this:
870 (( i i i i i o o o o o from bfd_get<size>
871 and S S S S S) to get the size offset we want
872 + r r r r r r r r r r) to get the final value to place
873 and D D D D D to chop to right size
874 -----------------------
875 = A A A A A
876 And this:
877 ( i i i i i o o o o o from bfd_get<size>
878 and N N N N N ) get instruction
879 -----------------------
880 = B B B B B
881
882 And then:
883 ( B B B B B
884 or A A A A A)
885 -----------------------
886 = R R R R R R R R R R put into bfd_put<size>
887 */
888
889 #define DOIT(x) \
890 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
891
892 switch (howto->size)
893 {
894 case 0:
895 {
896 char x = bfd_get_8 (abfd, (char *) data + octets);
897 DOIT (x);
898 bfd_put_8 (abfd, x, (unsigned char *) data + octets);
899 }
900 break;
901
902 case 1:
903 {
904 short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
905 DOIT (x);
906 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
907 }
908 break;
909 case 2:
910 {
911 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
912 DOIT (x);
913 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
914 }
915 break;
916 case -2:
917 {
918 long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
919 relocation = -relocation;
920 DOIT (x);
921 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
922 }
923 break;
924
925 case -1:
926 {
927 long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
928 relocation = -relocation;
929 DOIT (x);
930 bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
931 }
932 break;
933
934 case 3:
935 /* Do nothing */
936 break;
937
938 case 4:
939 #ifdef BFD64
940 {
941 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
942 DOIT (x);
943 bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
944 }
945 #else
946 abort ();
947 #endif
948 break;
949 default:
950 return bfd_reloc_other;
951 }
952
953 return flag;
954 }
955
956 /*
957 FUNCTION
958 bfd_install_relocation
959
960 SYNOPSIS
961 bfd_reloc_status_type
962 bfd_install_relocation
963 (bfd *abfd,
964 arelent *reloc_entry,
965 PTR data, bfd_vma data_start,
966 asection *input_section,
967 char **error_message);
968
969 DESCRIPTION
970 This looks remarkably like <<bfd_perform_relocation>>, except it
971 does not expect that the section contents have been filled in.
972 I.e., it's suitable for use when creating, rather than applying
973 a relocation.
974
975 For now, this function should be considered reserved for the
976 assembler.
977 */
978
979 bfd_reloc_status_type
980 bfd_install_relocation (abfd, reloc_entry, data_start, data_start_offset,
981 input_section, error_message)
982 bfd *abfd;
983 arelent *reloc_entry;
984 PTR data_start;
985 bfd_vma data_start_offset;
986 asection *input_section;
987 char **error_message;
988 {
989 bfd_vma relocation;
990 bfd_reloc_status_type flag = bfd_reloc_ok;
991 bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
992 bfd_vma output_base = 0;
993 reloc_howto_type *howto = reloc_entry->howto;
994 asection *reloc_target_output_section;
995 asymbol *symbol;
996 bfd_byte *data;
997
998 symbol = *(reloc_entry->sym_ptr_ptr);
999 if (bfd_is_abs_section (symbol->section))
1000 {
1001 reloc_entry->address += input_section->output_offset;
1002 return bfd_reloc_ok;
1003 }
1004
1005 /* If there is a function supplied to handle this relocation type,
1006 call it. It'll return `bfd_reloc_continue' if further processing
1007 can be done. */
1008 if (howto->special_function)
1009 {
1010 bfd_reloc_status_type cont;
1011
1012 /* XXX - The special_function calls haven't been fixed up to deal
1013 with creating new relocations and section contents. */
1014 cont = howto->special_function (abfd, reloc_entry, symbol,
1015 /* XXX - Non-portable! */
1016 ((bfd_byte *) data_start
1017 - data_start_offset),
1018 input_section, abfd, error_message);
1019 if (cont != bfd_reloc_continue)
1020 return cont;
1021 }
1022
1023 /* Is the address of the relocation really within the section? */
1024 if (reloc_entry->address > (input_section->_cooked_size
1025 / bfd_octets_per_byte (abfd)))
1026 return bfd_reloc_outofrange;
1027
1028 /* Work out which section the relocation is targetted at and the
1029 initial relocation command value. */
1030
1031 /* Get symbol value. (Common symbols are special.) */
1032 if (bfd_is_com_section (symbol->section))
1033 relocation = 0;
1034 else
1035 relocation = symbol->value;
1036
1037 reloc_target_output_section = symbol->section->output_section;
1038
1039 /* Convert input-section-relative symbol value to absolute. */
1040 if (! howto->partial_inplace)
1041 output_base = 0;
1042 else
1043 output_base = reloc_target_output_section->vma;
1044
1045 relocation += output_base + symbol->section->output_offset;
1046
1047 /* Add in supplied addend. */
1048 relocation += reloc_entry->addend;
1049
1050 /* Here the variable relocation holds the final address of the
1051 symbol we are relocating against, plus any addend. */
1052
1053 if (howto->pc_relative)
1054 {
1055 /* This is a PC relative relocation. We want to set RELOCATION
1056 to the distance between the address of the symbol and the
1057 location. RELOCATION is already the address of the symbol.
1058
1059 We start by subtracting the address of the section containing
1060 the location.
1061
1062 If pcrel_offset is set, we must further subtract the position
1063 of the location within the section. Some targets arrange for
1064 the addend to be the negative of the position of the location
1065 within the section; for example, i386-aout does this. For
1066 i386-aout, pcrel_offset is FALSE. Some other targets do not
1067 include the position of the location; for example, m88kbcs,
1068 or ELF. For those targets, pcrel_offset is TRUE.
1069
1070 If we are producing relocateable output, then we must ensure
1071 that this reloc will be correctly computed when the final
1072 relocation is done. If pcrel_offset is FALSE we want to wind
1073 up with the negative of the location within the section,
1074 which means we must adjust the existing addend by the change
1075 in the location within the section. If pcrel_offset is TRUE
1076 we do not want to adjust the existing addend at all.
1077
1078 FIXME: This seems logical to me, but for the case of
1079 producing relocateable output it is not what the code
1080 actually does. I don't want to change it, because it seems
1081 far too likely that something will break. */
1082
1083 relocation -=
1084 input_section->output_section->vma + input_section->output_offset;
1085
1086 if (howto->pcrel_offset && howto->partial_inplace)
1087 relocation -= reloc_entry->address;
1088 }
1089
1090 if (! howto->partial_inplace)
1091 {
1092 /* This is a partial relocation, and we want to apply the relocation
1093 to the reloc entry rather than the raw data. Modify the reloc
1094 inplace to reflect what we now know. */
1095 reloc_entry->addend = relocation;
1096 reloc_entry->address += input_section->output_offset;
1097 return flag;
1098 }
1099 else
1100 {
1101 /* This is a partial relocation, but inplace, so modify the
1102 reloc record a bit.
1103
1104 If we've relocated with a symbol with a section, change
1105 into a ref to the section belonging to the symbol. */
1106 reloc_entry->address += input_section->output_offset;
1107
1108 /* WTF?? */
1109 if (abfd->xvec->flavour == bfd_target_coff_flavour
1110 && strcmp (abfd->xvec->name, "coff-Intel-little") != 0
1111 && strcmp (abfd->xvec->name, "coff-Intel-big") != 0)
1112 {
1113 #if 1
1114 /* For m68k-coff, the addend was being subtracted twice during
1115 relocation with -r. Removing the line below this comment
1116 fixes that problem; see PR 2953.
1117
1118 However, Ian wrote the following, regarding removing the line below,
1119 which explains why it is still enabled: --djm
1120
1121 If you put a patch like that into BFD you need to check all the COFF
1122 linkers. I am fairly certain that patch will break coff-i386 (e.g.,
1123 SCO); see coff_i386_reloc in coff-i386.c where I worked around the
1124 problem in a different way. There may very well be a reason that the
1125 code works as it does.
1126
1127 Hmmm. The first obvious point is that bfd_install_relocation should
1128 not have any tests that depend upon the flavour. It's seem like
1129 entirely the wrong place for such a thing. The second obvious point
1130 is that the current code ignores the reloc addend when producing
1131 relocateable output for COFF. That's peculiar. In fact, I really
1132 have no idea what the point of the line you want to remove is.
1133
1134 A typical COFF reloc subtracts the old value of the symbol and adds in
1135 the new value to the location in the object file (if it's a pc
1136 relative reloc it adds the difference between the symbol value and the
1137 location). When relocating we need to preserve that property.
1138
1139 BFD handles this by setting the addend to the negative of the old
1140 value of the symbol. Unfortunately it handles common symbols in a
1141 non-standard way (it doesn't subtract the old value) but that's a
1142 different story (we can't change it without losing backward
1143 compatibility with old object files) (coff-i386 does subtract the old
1144 value, to be compatible with existing coff-i386 targets, like SCO).
1145
1146 So everything works fine when not producing relocateable output. When
1147 we are producing relocateable output, logically we should do exactly
1148 what we do when not producing relocateable output. Therefore, your
1149 patch is correct. In fact, it should probably always just set
1150 reloc_entry->addend to 0 for all cases, since it is, in fact, going to
1151 add the value into the object file. This won't hurt the COFF code,
1152 which doesn't use the addend; I'm not sure what it will do to other
1153 formats (the thing to check for would be whether any formats both use
1154 the addend and set partial_inplace).
1155
1156 When I wanted to make coff-i386 produce relocateable output, I ran
1157 into the problem that you are running into: I wanted to remove that
1158 line. Rather than risk it, I made the coff-i386 relocs use a special
1159 function; it's coff_i386_reloc in coff-i386.c. The function
1160 specifically adds the addend field into the object file, knowing that
1161 bfd_install_relocation is not going to. If you remove that line, then
1162 coff-i386.c will wind up adding the addend field in twice. It's
1163 trivial to fix; it just needs to be done.
1164
1165 The problem with removing the line is just that it may break some
1166 working code. With BFD it's hard to be sure of anything. The right
1167 way to deal with this is simply to build and test at least all the
1168 supported COFF targets. It should be straightforward if time and disk
1169 space consuming. For each target:
1170 1) build the linker
1171 2) generate some executable, and link it using -r (I would
1172 probably use paranoia.o and link against newlib/libc.a, which
1173 for all the supported targets would be available in
1174 /usr/cygnus/progressive/H-host/target/lib/libc.a).
1175 3) make the change to reloc.c
1176 4) rebuild the linker
1177 5) repeat step 2
1178 6) if the resulting object files are the same, you have at least
1179 made it no worse
1180 7) if they are different you have to figure out which version is
1181 right. */
1182 relocation -= reloc_entry->addend;
1183 #endif
1184 reloc_entry->addend = 0;
1185 }
1186 else
1187 {
1188 reloc_entry->addend = relocation;
1189 }
1190 }
1191
1192 /* FIXME: This overflow checking is incomplete, because the value
1193 might have overflowed before we get here. For a correct check we
1194 need to compute the value in a size larger than bitsize, but we
1195 can't reasonably do that for a reloc the same size as a host
1196 machine word.
1197 FIXME: We should also do overflow checking on the result after
1198 adding in the value contained in the object file. */
1199 if (howto->complain_on_overflow != complain_overflow_dont)
1200 flag = bfd_check_overflow (howto->complain_on_overflow,
1201 howto->bitsize,
1202 howto->rightshift,
1203 bfd_arch_bits_per_address (abfd),
1204 relocation);
1205
1206 /* Either we are relocating all the way, or we don't want to apply
1207 the relocation to the reloc entry (probably because there isn't
1208 any room in the output format to describe addends to relocs). */
1209
1210 /* The cast to bfd_vma avoids a bug in the Alpha OSF/1 C compiler
1211 (OSF version 1.3, compiler version 3.11). It miscompiles the
1212 following program:
1213
1214 struct str
1215 {
1216 unsigned int i0;
1217 } s = { 0 };
1218
1219 int
1220 main ()
1221 {
1222 unsigned long x;
1223
1224 x = 0x100000000;
1225 x <<= (unsigned long) s.i0;
1226 if (x == 0)
1227 printf ("failed\n");
1228 else
1229 printf ("succeeded (%lx)\n", x);
1230 }
1231 */
1232
1233 relocation >>= (bfd_vma) howto->rightshift;
1234
1235 /* Shift everything up to where it's going to be used. */
1236 relocation <<= (bfd_vma) howto->bitpos;
1237
1238 /* Wait for the day when all have the mask in them. */
1239
1240 /* What we do:
1241 i instruction to be left alone
1242 o offset within instruction
1243 r relocation offset to apply
1244 S src mask
1245 D dst mask
1246 N ~dst mask
1247 A part 1
1248 B part 2
1249 R result
1250
1251 Do this:
1252 (( i i i i i o o o o o from bfd_get<size>
1253 and S S S S S) to get the size offset we want
1254 + r r r r r r r r r r) to get the final value to place
1255 and D D D D D to chop to right size
1256 -----------------------
1257 = A A A A A
1258 And this:
1259 ( i i i i i o o o o o from bfd_get<size>
1260 and N N N N N ) get instruction
1261 -----------------------
1262 = B B B B B
1263
1264 And then:
1265 ( B B B B B
1266 or A A A A A)
1267 -----------------------
1268 = R R R R R R R R R R put into bfd_put<size>
1269 */
1270
1271 #define DOIT(x) \
1272 x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
1273
1274 data = (bfd_byte *) data_start + (octets - data_start_offset);
1275
1276 switch (howto->size)
1277 {
1278 case 0:
1279 {
1280 char x = bfd_get_8 (abfd, (char *) data);
1281 DOIT (x);
1282 bfd_put_8 (abfd, x, (unsigned char *) data);
1283 }
1284 break;
1285
1286 case 1:
1287 {
1288 short x = bfd_get_16 (abfd, (bfd_byte *) data);
1289 DOIT (x);
1290 bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data);
1291 }
1292 break;
1293 case 2:
1294 {
1295 long x = bfd_get_32 (abfd, (bfd_byte *) data);
1296 DOIT (x);
1297 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data);
1298 }
1299 break;
1300 case -2:
1301 {
1302 long x = bfd_get_32 (abfd, (bfd_byte *) data);
1303 relocation = -relocation;
1304 DOIT (x);
1305 bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data);
1306 }
1307 break;
1308
1309 case 3:
1310 /* Do nothing */
1311 break;
1312
1313 case 4:
1314 {
1315 bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data);
1316 DOIT (x);
1317 bfd_put_64 (abfd, x, (bfd_byte *) data);
1318 }
1319 break;
1320 default:
1321 return bfd_reloc_other;
1322 }
1323
1324 return flag;
1325 }
1326
1327 /* This relocation routine is used by some of the backend linkers.
1328 They do not construct asymbol or arelent structures, so there is no
1329 reason for them to use bfd_perform_relocation. Also,
1330 bfd_perform_relocation is so hacked up it is easier to write a new
1331 function than to try to deal with it.
1332
1333 This routine does a final relocation. Whether it is useful for a
1334 relocateable link depends upon how the object format defines
1335 relocations.
1336
1337 FIXME: This routine ignores any special_function in the HOWTO,
1338 since the existing special_function values have been written for
1339 bfd_perform_relocation.
1340
1341 HOWTO is the reloc howto information.
1342 INPUT_BFD is the BFD which the reloc applies to.
1343 INPUT_SECTION is the section which the reloc applies to.
1344 CONTENTS is the contents of the section.
1345 ADDRESS is the address of the reloc within INPUT_SECTION.
1346 VALUE is the value of the symbol the reloc refers to.
1347 ADDEND is the addend of the reloc. */
1348
1349 bfd_reloc_status_type
1350 _bfd_final_link_relocate (howto, input_bfd, input_section, contents, address,
1351 value, addend)
1352 reloc_howto_type *howto;
1353 bfd *input_bfd;
1354 asection *input_section;
1355 bfd_byte *contents;
1356 bfd_vma address;
1357 bfd_vma value;
1358 bfd_vma addend;
1359 {
1360 bfd_vma relocation;
1361
1362 /* Sanity check the address. */
1363 if (address > input_section->_raw_size)
1364 return bfd_reloc_outofrange;
1365
1366 /* This function assumes that we are dealing with a basic relocation
1367 against a symbol. We want to compute the value of the symbol to
1368 relocate to. This is just VALUE, the value of the symbol, plus
1369 ADDEND, any addend associated with the reloc. */
1370 relocation = value + addend;
1371
1372 /* If the relocation is PC relative, we want to set RELOCATION to
1373 the distance between the symbol (currently in RELOCATION) and the
1374 location we are relocating. Some targets (e.g., i386-aout)
1375 arrange for the contents of the section to be the negative of the
1376 offset of the location within the section; for such targets
1377 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
1378 simply leave the contents of the section as zero; for such
1379 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
1380 need to subtract out the offset of the location within the
1381 section (which is just ADDRESS). */
1382 if (howto->pc_relative)
1383 {
1384 relocation -= (input_section->output_section->vma
1385 + input_section->output_offset);
1386 if (howto->pcrel_offset)
1387 relocation -= address;
1388 }
1389
1390 return _bfd_relocate_contents (howto, input_bfd, relocation,
1391 contents + address);
1392 }
1393
1394 /* Relocate a given location using a given value and howto. */
1395
1396 bfd_reloc_status_type
1397 _bfd_relocate_contents (howto, input_bfd, relocation, location)
1398 reloc_howto_type *howto;
1399 bfd *input_bfd;
1400 bfd_vma relocation;
1401 bfd_byte *location;
1402 {
1403 int size;
1404 bfd_vma x = 0;
1405 bfd_reloc_status_type flag;
1406 unsigned int rightshift = howto->rightshift;
1407 unsigned int bitpos = howto->bitpos;
1408
1409 /* If the size is negative, negate RELOCATION. This isn't very
1410 general. */
1411 if (howto->size < 0)
1412 relocation = -relocation;
1413
1414 /* Get the value we are going to relocate. */
1415 size = bfd_get_reloc_size (howto);
1416 switch (size)
1417 {
1418 default:
1419 case 0:
1420 abort ();
1421 case 1:
1422 x = bfd_get_8 (input_bfd, location);
1423 break;
1424 case 2:
1425 x = bfd_get_16 (input_bfd, location);
1426 break;
1427 case 4:
1428 x = bfd_get_32 (input_bfd, location);
1429 break;
1430 case 8:
1431 #ifdef BFD64
1432 x = bfd_get_64 (input_bfd, location);
1433 #else
1434 abort ();
1435 #endif
1436 break;
1437 }
1438
1439 /* Check for overflow. FIXME: We may drop bits during the addition
1440 which we don't check for. We must either check at every single
1441 operation, which would be tedious, or we must do the computations
1442 in a type larger than bfd_vma, which would be inefficient. */
1443 flag = bfd_reloc_ok;
1444 if (howto->complain_on_overflow != complain_overflow_dont)
1445 {
1446 bfd_vma addrmask, fieldmask, signmask, ss;
1447 bfd_vma a, b, sum;
1448
1449 /* Get the values to be added together. For signed and unsigned
1450 relocations, we assume that all values should be truncated to
1451 the size of an address. For bitfields, all the bits matter.
1452 See also bfd_check_overflow. */
1453 fieldmask = N_ONES (howto->bitsize);
1454 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
1455 a = relocation;
1456 b = x & howto->src_mask;
1457
1458 switch (howto->complain_on_overflow)
1459 {
1460 case complain_overflow_signed:
1461 a = (a & addrmask) >> rightshift;
1462
1463 /* If any sign bits are set, all sign bits must be set.
1464 That is, A must be a valid negative address after
1465 shifting. */
1466 signmask = ~ (fieldmask >> 1);
1467 ss = a & signmask;
1468 if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
1469 flag = bfd_reloc_overflow;
1470
1471 /* We only need this next bit of code if the sign bit of B
1472 is below the sign bit of A. This would only happen if
1473 SRC_MASK had fewer bits than BITSIZE. Note that if
1474 SRC_MASK has more bits than BITSIZE, we can get into
1475 trouble; we would need to verify that B is in range, as
1476 we do for A above. */
1477 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1478
1479 /* Set all the bits above the sign bit. */
1480 b = (b ^ signmask) - signmask;
1481
1482 b = (b & addrmask) >> bitpos;
1483
1484 /* Now we can do the addition. */
1485 sum = a + b;
1486
1487 /* See if the result has the correct sign. Bits above the
1488 sign bit are junk now; ignore them. If the sum is
1489 positive, make sure we did not have all negative inputs;
1490 if the sum is negative, make sure we did not have all
1491 positive inputs. The test below looks only at the sign
1492 bits, and it really just
1493 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
1494 */
1495 signmask = (fieldmask >> 1) + 1;
1496 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
1497 flag = bfd_reloc_overflow;
1498
1499 break;
1500
1501 case complain_overflow_unsigned:
1502 /* Checking for an unsigned overflow is relatively easy:
1503 trim the addresses and add, and trim the result as well.
1504 Overflow is normally indicated when the result does not
1505 fit in the field. However, we also need to consider the
1506 case when, e.g., fieldmask is 0x7fffffff or smaller, an
1507 input is 0x80000000, and bfd_vma is only 32 bits; then we
1508 will get sum == 0, but there is an overflow, since the
1509 inputs did not fit in the field. Instead of doing a
1510 separate test, we can check for this by or-ing in the
1511 operands when testing for the sum overflowing its final
1512 field. */
1513 a = (a & addrmask) >> rightshift;
1514 b = (b & addrmask) >> bitpos;
1515 sum = (a + b) & addrmask;
1516 if ((a | b | sum) & ~ fieldmask)
1517 flag = bfd_reloc_overflow;
1518
1519 break;
1520
1521 case complain_overflow_bitfield:
1522 /* Much like the signed check, but for a field one bit
1523 wider, and no trimming inputs with addrmask. We allow a
1524 bitfield to represent numbers in the range -2**n to
1525 2**n-1, where n is the number of bits in the field.
1526 Note that when bfd_vma is 32 bits, a 32-bit reloc can't
1527 overflow, which is exactly what we want. */
1528 a >>= rightshift;
1529
1530 signmask = ~ fieldmask;
1531 ss = a & signmask;
1532 if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
1533 flag = bfd_reloc_overflow;
1534
1535 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
1536 b = (b ^ signmask) - signmask;
1537
1538 b >>= bitpos;
1539
1540 sum = a + b;
1541
1542 /* We mask with addrmask here to explicitly allow an address
1543 wrap-around. The Linux kernel relies on it, and it is
1544 the only way to write assembler code which can run when
1545 loaded at a location 0x80000000 away from the location at
1546 which it is linked. */
1547 signmask = fieldmask + 1;
1548 if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
1549 flag = bfd_reloc_overflow;
1550
1551 break;
1552
1553 default:
1554 abort ();
1555 }
1556 }
1557
1558 /* Put RELOCATION in the right bits. */
1559 relocation >>= (bfd_vma) rightshift;
1560 relocation <<= (bfd_vma) bitpos;
1561
1562 /* Add RELOCATION to the right bits of X. */
1563 x = ((x & ~howto->dst_mask)
1564 | (((x & howto->src_mask) + relocation) & howto->dst_mask));
1565
1566 /* Put the relocated value back in the object file. */
1567 switch (size)
1568 {
1569 default:
1570 case 0:
1571 abort ();
1572 case 1:
1573 bfd_put_8 (input_bfd, x, location);
1574 break;
1575 case 2:
1576 bfd_put_16 (input_bfd, x, location);
1577 break;
1578 case 4:
1579 bfd_put_32 (input_bfd, x, location);
1580 break;
1581 case 8:
1582 #ifdef BFD64
1583 bfd_put_64 (input_bfd, x, location);
1584 #else
1585 abort ();
1586 #endif
1587 break;
1588 }
1589
1590 return flag;
1591 }
1592
1593 /*
1594 DOCDD
1595 INODE
1596 howto manager, , typedef arelent, Relocations
1597
1598 SECTION
1599 The howto manager
1600
1601 When an application wants to create a relocation, but doesn't
1602 know what the target machine might call it, it can find out by
1603 using this bit of code.
1604
1605 */
1606
1607 /*
1608 TYPEDEF
1609 bfd_reloc_code_type
1610
1611 DESCRIPTION
1612 The insides of a reloc code. The idea is that, eventually, there
1613 will be one enumerator for every type of relocation we ever do.
1614 Pass one of these values to <<bfd_reloc_type_lookup>>, and it'll
1615 return a howto pointer.
1616
1617 This does mean that the application must determine the correct
1618 enumerator value; you can't get a howto pointer from a random set
1619 of attributes.
1620
1621 SENUM
1622 bfd_reloc_code_real
1623
1624 ENUM
1625 BFD_RELOC_64
1626 ENUMX
1627 BFD_RELOC_32
1628 ENUMX
1629 BFD_RELOC_26
1630 ENUMX
1631 BFD_RELOC_24
1632 ENUMX
1633 BFD_RELOC_16
1634 ENUMX
1635 BFD_RELOC_14
1636 ENUMX
1637 BFD_RELOC_8
1638 ENUMDOC
1639 Basic absolute relocations of N bits.
1640
1641 ENUM
1642 BFD_RELOC_64_PCREL
1643 ENUMX
1644 BFD_RELOC_32_PCREL
1645 ENUMX
1646 BFD_RELOC_24_PCREL
1647 ENUMX
1648 BFD_RELOC_16_PCREL
1649 ENUMX
1650 BFD_RELOC_12_PCREL
1651 ENUMX
1652 BFD_RELOC_8_PCREL
1653 ENUMDOC
1654 PC-relative relocations. Sometimes these are relative to the address
1655 of the relocation itself; sometimes they are relative to the start of
1656 the section containing the relocation. It depends on the specific target.
1657
1658 The 24-bit relocation is used in some Intel 960 configurations.
1659
1660 ENUM
1661 BFD_RELOC_32_GOT_PCREL
1662 ENUMX
1663 BFD_RELOC_16_GOT_PCREL
1664 ENUMX
1665 BFD_RELOC_8_GOT_PCREL
1666 ENUMX
1667 BFD_RELOC_32_GOTOFF
1668 ENUMX
1669 BFD_RELOC_16_GOTOFF
1670 ENUMX
1671 BFD_RELOC_LO16_GOTOFF
1672 ENUMX
1673 BFD_RELOC_HI16_GOTOFF
1674 ENUMX
1675 BFD_RELOC_HI16_S_GOTOFF
1676 ENUMX
1677 BFD_RELOC_8_GOTOFF
1678 ENUMX
1679 BFD_RELOC_64_PLT_PCREL
1680 ENUMX
1681 BFD_RELOC_32_PLT_PCREL
1682 ENUMX
1683 BFD_RELOC_24_PLT_PCREL
1684 ENUMX
1685 BFD_RELOC_16_PLT_PCREL
1686 ENUMX
1687 BFD_RELOC_8_PLT_PCREL
1688 ENUMX
1689 BFD_RELOC_64_PLTOFF
1690 ENUMX
1691 BFD_RELOC_32_PLTOFF
1692 ENUMX
1693 BFD_RELOC_16_PLTOFF
1694 ENUMX
1695 BFD_RELOC_LO16_PLTOFF
1696 ENUMX
1697 BFD_RELOC_HI16_PLTOFF
1698 ENUMX
1699 BFD_RELOC_HI16_S_PLTOFF
1700 ENUMX
1701 BFD_RELOC_8_PLTOFF
1702 ENUMDOC
1703 For ELF.
1704
1705 ENUM
1706 BFD_RELOC_68K_GLOB_DAT
1707 ENUMX
1708 BFD_RELOC_68K_JMP_SLOT
1709 ENUMX
1710 BFD_RELOC_68K_RELATIVE
1711 ENUMDOC
1712 Relocations used by 68K ELF.
1713
1714 ENUM
1715 BFD_RELOC_32_BASEREL
1716 ENUMX
1717 BFD_RELOC_16_BASEREL
1718 ENUMX
1719 BFD_RELOC_LO16_BASEREL
1720 ENUMX
1721 BFD_RELOC_HI16_BASEREL
1722 ENUMX
1723 BFD_RELOC_HI16_S_BASEREL
1724 ENUMX
1725 BFD_RELOC_8_BASEREL
1726 ENUMX
1727 BFD_RELOC_RVA
1728 ENUMDOC
1729 Linkage-table relative.
1730
1731 ENUM
1732 BFD_RELOC_8_FFnn
1733 ENUMDOC
1734 Absolute 8-bit relocation, but used to form an address like 0xFFnn.
1735
1736 ENUM
1737 BFD_RELOC_32_PCREL_S2
1738 ENUMX
1739 BFD_RELOC_16_PCREL_S2
1740 ENUMX
1741 BFD_RELOC_23_PCREL_S2
1742 ENUMDOC
1743 These PC-relative relocations are stored as word displacements --
1744 i.e., byte displacements shifted right two bits. The 30-bit word
1745 displacement (<<32_PCREL_S2>> -- 32 bits, shifted 2) is used on the
1746 SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The
1747 signed 16-bit displacement is used on the MIPS, and the 23-bit
1748 displacement is used on the Alpha.
1749
1750 ENUM
1751 BFD_RELOC_HI22
1752 ENUMX
1753 BFD_RELOC_LO10
1754 ENUMDOC
1755 High 22 bits and low 10 bits of 32-bit value, placed into lower bits of
1756 the target word. These are used on the SPARC.
1757
1758 ENUM
1759 BFD_RELOC_GPREL16
1760 ENUMX
1761 BFD_RELOC_GPREL32
1762 ENUMDOC
1763 For systems that allocate a Global Pointer register, these are
1764 displacements off that register. These relocation types are
1765 handled specially, because the value the register will have is
1766 decided relatively late.
1767
1768 ENUM
1769 BFD_RELOC_I960_CALLJ
1770 ENUMDOC
1771 Reloc types used for i960/b.out.
1772
1773 ENUM
1774 BFD_RELOC_NONE
1775 ENUMX
1776 BFD_RELOC_SPARC_WDISP22
1777 ENUMX
1778 BFD_RELOC_SPARC22
1779 ENUMX
1780 BFD_RELOC_SPARC13
1781 ENUMX
1782 BFD_RELOC_SPARC_GOT10
1783 ENUMX
1784 BFD_RELOC_SPARC_GOT13
1785 ENUMX
1786 BFD_RELOC_SPARC_GOT22
1787 ENUMX
1788 BFD_RELOC_SPARC_PC10
1789 ENUMX
1790 BFD_RELOC_SPARC_PC22
1791 ENUMX
1792 BFD_RELOC_SPARC_WPLT30
1793 ENUMX
1794 BFD_RELOC_SPARC_COPY
1795 ENUMX
1796 BFD_RELOC_SPARC_GLOB_DAT
1797 ENUMX
1798 BFD_RELOC_SPARC_JMP_SLOT
1799 ENUMX
1800 BFD_RELOC_SPARC_RELATIVE
1801 ENUMX
1802 BFD_RELOC_SPARC_UA16
1803 ENUMX
1804 BFD_RELOC_SPARC_UA32
1805 ENUMX
1806 BFD_RELOC_SPARC_UA64
1807 ENUMDOC
1808 SPARC ELF relocations. There is probably some overlap with other
1809 relocation types already defined.
1810
1811 ENUM
1812 BFD_RELOC_SPARC_BASE13
1813 ENUMX
1814 BFD_RELOC_SPARC_BASE22
1815 ENUMDOC
1816 I think these are specific to SPARC a.out (e.g., Sun 4).
1817
1818 ENUMEQ
1819 BFD_RELOC_SPARC_64
1820 BFD_RELOC_64
1821 ENUMX
1822 BFD_RELOC_SPARC_10
1823 ENUMX
1824 BFD_RELOC_SPARC_11
1825 ENUMX
1826 BFD_RELOC_SPARC_OLO10
1827 ENUMX
1828 BFD_RELOC_SPARC_HH22
1829 ENUMX
1830 BFD_RELOC_SPARC_HM10
1831 ENUMX
1832 BFD_RELOC_SPARC_LM22
1833 ENUMX
1834 BFD_RELOC_SPARC_PC_HH22
1835 ENUMX
1836 BFD_RELOC_SPARC_PC_HM10
1837 ENUMX
1838 BFD_RELOC_SPARC_PC_LM22
1839 ENUMX
1840 BFD_RELOC_SPARC_WDISP16
1841 ENUMX
1842 BFD_RELOC_SPARC_WDISP19
1843 ENUMX
1844 BFD_RELOC_SPARC_7
1845 ENUMX
1846 BFD_RELOC_SPARC_6
1847 ENUMX
1848 BFD_RELOC_SPARC_5
1849 ENUMEQX
1850 BFD_RELOC_SPARC_DISP64
1851 BFD_RELOC_64_PCREL
1852 ENUMX
1853 BFD_RELOC_SPARC_PLT32
1854 ENUMX
1855 BFD_RELOC_SPARC_PLT64
1856 ENUMX
1857 BFD_RELOC_SPARC_HIX22
1858 ENUMX
1859 BFD_RELOC_SPARC_LOX10
1860 ENUMX
1861 BFD_RELOC_SPARC_H44
1862 ENUMX
1863 BFD_RELOC_SPARC_M44
1864 ENUMX
1865 BFD_RELOC_SPARC_L44
1866 ENUMX
1867 BFD_RELOC_SPARC_REGISTER
1868 ENUMDOC
1869 SPARC64 relocations
1870
1871 ENUM
1872 BFD_RELOC_SPARC_REV32
1873 ENUMDOC
1874 SPARC little endian relocation
1875 ENUM
1876 BFD_RELOC_SPARC_TLS_GD_HI22
1877 ENUMX
1878 BFD_RELOC_SPARC_TLS_GD_LO10
1879 ENUMX
1880 BFD_RELOC_SPARC_TLS_GD_ADD
1881 ENUMX
1882 BFD_RELOC_SPARC_TLS_GD_CALL
1883 ENUMX
1884 BFD_RELOC_SPARC_TLS_LDM_HI22
1885 ENUMX
1886 BFD_RELOC_SPARC_TLS_LDM_LO10
1887 ENUMX
1888 BFD_RELOC_SPARC_TLS_LDM_ADD
1889 ENUMX
1890 BFD_RELOC_SPARC_TLS_LDM_CALL
1891 ENUMX
1892 BFD_RELOC_SPARC_TLS_LDO_HIX22
1893 ENUMX
1894 BFD_RELOC_SPARC_TLS_LDO_LOX10
1895 ENUMX
1896 BFD_RELOC_SPARC_TLS_LDO_ADD
1897 ENUMX
1898 BFD_RELOC_SPARC_TLS_IE_HI22
1899 ENUMX
1900 BFD_RELOC_SPARC_TLS_IE_LO10
1901 ENUMX
1902 BFD_RELOC_SPARC_TLS_IE_LD
1903 ENUMX
1904 BFD_RELOC_SPARC_TLS_IE_LDX
1905 ENUMX
1906 BFD_RELOC_SPARC_TLS_IE_ADD
1907 ENUMX
1908 BFD_RELOC_SPARC_TLS_LE_HIX22
1909 ENUMX
1910 BFD_RELOC_SPARC_TLS_LE_LOX10
1911 ENUMX
1912 BFD_RELOC_SPARC_TLS_DTPMOD32
1913 ENUMX
1914 BFD_RELOC_SPARC_TLS_DTPMOD64
1915 ENUMX
1916 BFD_RELOC_SPARC_TLS_DTPOFF32
1917 ENUMX
1918 BFD_RELOC_SPARC_TLS_DTPOFF64
1919 ENUMX
1920 BFD_RELOC_SPARC_TLS_TPOFF32
1921 ENUMX
1922 BFD_RELOC_SPARC_TLS_TPOFF64
1923 ENUMDOC
1924 SPARC TLS relocations
1925
1926 ENUM
1927 BFD_RELOC_ALPHA_GPDISP_HI16
1928 ENUMDOC
1929 Alpha ECOFF and ELF relocations. Some of these treat the symbol or
1930 "addend" in some special way.
1931 For GPDISP_HI16 ("gpdisp") relocations, the symbol is ignored when
1932 writing; when reading, it will be the absolute section symbol. The
1933 addend is the displacement in bytes of the "lda" instruction from
1934 the "ldah" instruction (which is at the address of this reloc).
1935 ENUM
1936 BFD_RELOC_ALPHA_GPDISP_LO16
1937 ENUMDOC
1938 For GPDISP_LO16 ("ignore") relocations, the symbol is handled as
1939 with GPDISP_HI16 relocs. The addend is ignored when writing the
1940 relocations out, and is filled in with the file's GP value on
1941 reading, for convenience.
1942
1943 ENUM
1944 BFD_RELOC_ALPHA_GPDISP
1945 ENUMDOC
1946 The ELF GPDISP relocation is exactly the same as the GPDISP_HI16
1947 relocation except that there is no accompanying GPDISP_LO16
1948 relocation.
1949
1950 ENUM
1951 BFD_RELOC_ALPHA_LITERAL
1952 ENUMX
1953 BFD_RELOC_ALPHA_ELF_LITERAL
1954 ENUMX
1955 BFD_RELOC_ALPHA_LITUSE
1956 ENUMDOC
1957 The Alpha LITERAL/LITUSE relocs are produced by a symbol reference;
1958 the assembler turns it into a LDQ instruction to load the address of
1959 the symbol, and then fills in a register in the real instruction.
1960
1961 The LITERAL reloc, at the LDQ instruction, refers to the .lita
1962 section symbol. The addend is ignored when writing, but is filled
1963 in with the file's GP value on reading, for convenience, as with the
1964 GPDISP_LO16 reloc.
1965
1966 The ELF_LITERAL reloc is somewhere between 16_GOTOFF and GPDISP_LO16.
1967 It should refer to the symbol to be referenced, as with 16_GOTOFF,
1968 but it generates output not based on the position within the .got
1969 section, but relative to the GP value chosen for the file during the
1970 final link stage.
1971
1972 The LITUSE reloc, on the instruction using the loaded address, gives
1973 information to the linker that it might be able to use to optimize
1974 away some literal section references. The symbol is ignored (read
1975 as the absolute section symbol), and the "addend" indicates the type
1976 of instruction using the register:
1977 1 - "memory" fmt insn
1978 2 - byte-manipulation (byte offset reg)
1979 3 - jsr (target of branch)
1980
1981 ENUM
1982 BFD_RELOC_ALPHA_HINT
1983 ENUMDOC
1984 The HINT relocation indicates a value that should be filled into the
1985 "hint" field of a jmp/jsr/ret instruction, for possible branch-
1986 prediction logic which may be provided on some processors.
1987
1988 ENUM
1989 BFD_RELOC_ALPHA_LINKAGE
1990 ENUMDOC
1991 The LINKAGE relocation outputs a linkage pair in the object file,
1992 which is filled by the linker.
1993
1994 ENUM
1995 BFD_RELOC_ALPHA_CODEADDR
1996 ENUMDOC
1997 The CODEADDR relocation outputs a STO_CA in the object file,
1998 which is filled by the linker.
1999
2000 ENUM
2001 BFD_RELOC_ALPHA_GPREL_HI16
2002 ENUMX
2003 BFD_RELOC_ALPHA_GPREL_LO16
2004 ENUMDOC
2005 The GPREL_HI/LO relocations together form a 32-bit offset from the
2006 GP register.
2007
2008 ENUM
2009 BFD_RELOC_ALPHA_BRSGP
2010 ENUMDOC
2011 Like BFD_RELOC_23_PCREL_S2, except that the source and target must
2012 share a common GP, and the target address is adjusted for
2013 STO_ALPHA_STD_GPLOAD.
2014
2015 ENUM
2016 BFD_RELOC_ALPHA_TLSGD
2017 ENUMX
2018 BFD_RELOC_ALPHA_TLSLDM
2019 ENUMX
2020 BFD_RELOC_ALPHA_DTPMOD64
2021 ENUMX
2022 BFD_RELOC_ALPHA_GOTDTPREL16
2023 ENUMX
2024 BFD_RELOC_ALPHA_DTPREL64
2025 ENUMX
2026 BFD_RELOC_ALPHA_DTPREL_HI16
2027 ENUMX
2028 BFD_RELOC_ALPHA_DTPREL_LO16
2029 ENUMX
2030 BFD_RELOC_ALPHA_DTPREL16
2031 ENUMX
2032 BFD_RELOC_ALPHA_GOTTPREL16
2033 ENUMX
2034 BFD_RELOC_ALPHA_TPREL64
2035 ENUMX
2036 BFD_RELOC_ALPHA_TPREL_HI16
2037 ENUMX
2038 BFD_RELOC_ALPHA_TPREL_LO16
2039 ENUMX
2040 BFD_RELOC_ALPHA_TPREL16
2041 ENUMDOC
2042 Alpha thread-local storage relocations.
2043
2044 ENUM
2045 BFD_RELOC_MIPS_JMP
2046 ENUMDOC
2047 Bits 27..2 of the relocation address shifted right 2 bits;
2048 simple reloc otherwise.
2049
2050 ENUM
2051 BFD_RELOC_MIPS16_JMP
2052 ENUMDOC
2053 The MIPS16 jump instruction.
2054
2055 ENUM
2056 BFD_RELOC_MIPS16_GPREL
2057 ENUMDOC
2058 MIPS16 GP relative reloc.
2059
2060 ENUM
2061 BFD_RELOC_HI16
2062 ENUMDOC
2063 High 16 bits of 32-bit value; simple reloc.
2064 ENUM
2065 BFD_RELOC_HI16_S
2066 ENUMDOC
2067 High 16 bits of 32-bit value but the low 16 bits will be sign
2068 extended and added to form the final result. If the low 16
2069 bits form a negative number, we need to add one to the high value
2070 to compensate for the borrow when the low bits are added.
2071 ENUM
2072 BFD_RELOC_LO16
2073 ENUMDOC
2074 Low 16 bits.
2075 ENUM
2076 BFD_RELOC_PCREL_HI16_S
2077 ENUMDOC
2078 Like BFD_RELOC_HI16_S, but PC relative.
2079 ENUM
2080 BFD_RELOC_PCREL_LO16
2081 ENUMDOC
2082 Like BFD_RELOC_LO16, but PC relative.
2083
2084 ENUM
2085 BFD_RELOC_MIPS_LITERAL
2086 ENUMDOC
2087 Relocation against a MIPS literal section.
2088
2089 ENUM
2090 BFD_RELOC_MIPS_GOT16
2091 ENUMX
2092 BFD_RELOC_MIPS_CALL16
2093 ENUMX
2094 BFD_RELOC_MIPS_GOT_HI16
2095 ENUMX
2096 BFD_RELOC_MIPS_GOT_LO16
2097 ENUMX
2098 BFD_RELOC_MIPS_CALL_HI16
2099 ENUMX
2100 BFD_RELOC_MIPS_CALL_LO16
2101 ENUMX
2102 BFD_RELOC_MIPS_SUB
2103 ENUMX
2104 BFD_RELOC_MIPS_GOT_PAGE
2105 ENUMX
2106 BFD_RELOC_MIPS_GOT_OFST
2107 ENUMX
2108 BFD_RELOC_MIPS_GOT_DISP
2109 ENUMX
2110 BFD_RELOC_MIPS_SHIFT5
2111 ENUMX
2112 BFD_RELOC_MIPS_SHIFT6
2113 ENUMX
2114 BFD_RELOC_MIPS_INSERT_A
2115 ENUMX
2116 BFD_RELOC_MIPS_INSERT_B
2117 ENUMX
2118 BFD_RELOC_MIPS_DELETE
2119 ENUMX
2120 BFD_RELOC_MIPS_HIGHEST
2121 ENUMX
2122 BFD_RELOC_MIPS_HIGHER
2123 ENUMX
2124 BFD_RELOC_MIPS_SCN_DISP
2125 ENUMX
2126 BFD_RELOC_MIPS_REL16
2127 ENUMX
2128 BFD_RELOC_MIPS_RELGOT
2129 ENUMX
2130 BFD_RELOC_MIPS_JALR
2131 COMMENT
2132 ENUM
2133 BFD_RELOC_FRV_LABEL16
2134 ENUMX
2135 BFD_RELOC_FRV_LABEL24
2136 ENUMX
2137 BFD_RELOC_FRV_LO16
2138 ENUMX
2139 BFD_RELOC_FRV_HI16
2140 ENUMX
2141 BFD_RELOC_FRV_GPREL12
2142 ENUMX
2143 BFD_RELOC_FRV_GPRELU12
2144 ENUMX
2145 BFD_RELOC_FRV_GPREL32
2146 ENUMX
2147 BFD_RELOC_FRV_GPRELHI
2148 ENUMX
2149 BFD_RELOC_FRV_GPRELLO
2150 ENUMDOC
2151 Fujitsu Frv Relocations.
2152 COMMENT
2153 COMMENT
2154 ENUMDOC
2155 MIPS ELF relocations.
2156
2157 COMMENT
2158
2159 ENUM
2160 BFD_RELOC_386_GOT32
2161 ENUMX
2162 BFD_RELOC_386_PLT32
2163 ENUMX
2164 BFD_RELOC_386_COPY
2165 ENUMX
2166 BFD_RELOC_386_GLOB_DAT
2167 ENUMX
2168 BFD_RELOC_386_JUMP_SLOT
2169 ENUMX
2170 BFD_RELOC_386_RELATIVE
2171 ENUMX
2172 BFD_RELOC_386_GOTOFF
2173 ENUMX
2174 BFD_RELOC_386_GOTPC
2175 ENUMX
2176 BFD_RELOC_386_TLS_TPOFF
2177 ENUMX
2178 BFD_RELOC_386_TLS_IE
2179 ENUMX
2180 BFD_RELOC_386_TLS_GOTIE
2181 ENUMX
2182 BFD_RELOC_386_TLS_LE
2183 ENUMX
2184 BFD_RELOC_386_TLS_GD
2185 ENUMX
2186 BFD_RELOC_386_TLS_LDM
2187 ENUMX
2188 BFD_RELOC_386_TLS_LDO_32
2189 ENUMX
2190 BFD_RELOC_386_TLS_IE_32
2191 ENUMX
2192 BFD_RELOC_386_TLS_LE_32
2193 ENUMX
2194 BFD_RELOC_386_TLS_DTPMOD32
2195 ENUMX
2196 BFD_RELOC_386_TLS_DTPOFF32
2197 ENUMX
2198 BFD_RELOC_386_TLS_TPOFF32
2199 ENUMDOC
2200 i386/elf relocations
2201
2202 ENUM
2203 BFD_RELOC_X86_64_GOT32
2204 ENUMX
2205 BFD_RELOC_X86_64_PLT32
2206 ENUMX
2207 BFD_RELOC_X86_64_COPY
2208 ENUMX
2209 BFD_RELOC_X86_64_GLOB_DAT
2210 ENUMX
2211 BFD_RELOC_X86_64_JUMP_SLOT
2212 ENUMX
2213 BFD_RELOC_X86_64_RELATIVE
2214 ENUMX
2215 BFD_RELOC_X86_64_GOTPCREL
2216 ENUMX
2217 BFD_RELOC_X86_64_32S
2218 ENUMX
2219 BFD_RELOC_X86_64_DTPMOD64
2220 ENUMX
2221 BFD_RELOC_X86_64_DTPOFF64
2222 ENUMX
2223 BFD_RELOC_X86_64_TPOFF64
2224 ENUMX
2225 BFD_RELOC_X86_64_TLSGD
2226 ENUMX
2227 BFD_RELOC_X86_64_TLSLD
2228 ENUMX
2229 BFD_RELOC_X86_64_DTPOFF32
2230 ENUMX
2231 BFD_RELOC_X86_64_GOTTPOFF
2232 ENUMX
2233 BFD_RELOC_X86_64_TPOFF32
2234 ENUMDOC
2235 x86-64/elf relocations
2236
2237 ENUM
2238 BFD_RELOC_NS32K_IMM_8
2239 ENUMX
2240 BFD_RELOC_NS32K_IMM_16
2241 ENUMX
2242 BFD_RELOC_NS32K_IMM_32
2243 ENUMX
2244 BFD_RELOC_NS32K_IMM_8_PCREL
2245 ENUMX
2246 BFD_RELOC_NS32K_IMM_16_PCREL
2247 ENUMX
2248 BFD_RELOC_NS32K_IMM_32_PCREL
2249 ENUMX
2250 BFD_RELOC_NS32K_DISP_8
2251 ENUMX
2252 BFD_RELOC_NS32K_DISP_16
2253 ENUMX
2254 BFD_RELOC_NS32K_DISP_32
2255 ENUMX
2256 BFD_RELOC_NS32K_DISP_8_PCREL
2257 ENUMX
2258 BFD_RELOC_NS32K_DISP_16_PCREL
2259 ENUMX
2260 BFD_RELOC_NS32K_DISP_32_PCREL
2261 ENUMDOC
2262 ns32k relocations
2263
2264 ENUM
2265 BFD_RELOC_PDP11_DISP_8_PCREL
2266 ENUMX
2267 BFD_RELOC_PDP11_DISP_6_PCREL
2268 ENUMDOC
2269 PDP11 relocations
2270
2271 ENUM
2272 BFD_RELOC_PJ_CODE_HI16
2273 ENUMX
2274 BFD_RELOC_PJ_CODE_LO16
2275 ENUMX
2276 BFD_RELOC_PJ_CODE_DIR16
2277 ENUMX
2278 BFD_RELOC_PJ_CODE_DIR32
2279 ENUMX
2280 BFD_RELOC_PJ_CODE_REL16
2281 ENUMX
2282 BFD_RELOC_PJ_CODE_REL32
2283 ENUMDOC
2284 Picojava relocs. Not all of these appear in object files.
2285
2286 ENUM
2287 BFD_RELOC_PPC_B26
2288 ENUMX
2289 BFD_RELOC_PPC_BA26
2290 ENUMX
2291 BFD_RELOC_PPC_TOC16
2292 ENUMX
2293 BFD_RELOC_PPC_B16
2294 ENUMX
2295 BFD_RELOC_PPC_B16_BRTAKEN
2296 ENUMX
2297 BFD_RELOC_PPC_B16_BRNTAKEN
2298 ENUMX
2299 BFD_RELOC_PPC_BA16
2300 ENUMX
2301 BFD_RELOC_PPC_BA16_BRTAKEN
2302 ENUMX
2303 BFD_RELOC_PPC_BA16_BRNTAKEN
2304 ENUMX
2305 BFD_RELOC_PPC_COPY
2306 ENUMX
2307 BFD_RELOC_PPC_GLOB_DAT
2308 ENUMX
2309 BFD_RELOC_PPC_JMP_SLOT
2310 ENUMX
2311 BFD_RELOC_PPC_RELATIVE
2312 ENUMX
2313 BFD_RELOC_PPC_LOCAL24PC
2314 ENUMX
2315 BFD_RELOC_PPC_EMB_NADDR32
2316 ENUMX
2317 BFD_RELOC_PPC_EMB_NADDR16
2318 ENUMX
2319 BFD_RELOC_PPC_EMB_NADDR16_LO
2320 ENUMX
2321 BFD_RELOC_PPC_EMB_NADDR16_HI
2322 ENUMX
2323 BFD_RELOC_PPC_EMB_NADDR16_HA
2324 ENUMX
2325 BFD_RELOC_PPC_EMB_SDAI16
2326 ENUMX
2327 BFD_RELOC_PPC_EMB_SDA2I16
2328 ENUMX
2329 BFD_RELOC_PPC_EMB_SDA2REL
2330 ENUMX
2331 BFD_RELOC_PPC_EMB_SDA21
2332 ENUMX
2333 BFD_RELOC_PPC_EMB_MRKREF
2334 ENUMX
2335 BFD_RELOC_PPC_EMB_RELSEC16
2336 ENUMX
2337 BFD_RELOC_PPC_EMB_RELST_LO
2338 ENUMX
2339 BFD_RELOC_PPC_EMB_RELST_HI
2340 ENUMX
2341 BFD_RELOC_PPC_EMB_RELST_HA
2342 ENUMX
2343 BFD_RELOC_PPC_EMB_BIT_FLD
2344 ENUMX
2345 BFD_RELOC_PPC_EMB_RELSDA
2346 ENUMX
2347 BFD_RELOC_PPC64_HIGHER
2348 ENUMX
2349 BFD_RELOC_PPC64_HIGHER_S
2350 ENUMX
2351 BFD_RELOC_PPC64_HIGHEST
2352 ENUMX
2353 BFD_RELOC_PPC64_HIGHEST_S
2354 ENUMX
2355 BFD_RELOC_PPC64_TOC16_LO
2356 ENUMX
2357 BFD_RELOC_PPC64_TOC16_HI
2358 ENUMX
2359 BFD_RELOC_PPC64_TOC16_HA
2360 ENUMX
2361 BFD_RELOC_PPC64_TOC
2362 ENUMX
2363 BFD_RELOC_PPC64_PLTGOT16
2364 ENUMX
2365 BFD_RELOC_PPC64_PLTGOT16_LO
2366 ENUMX
2367 BFD_RELOC_PPC64_PLTGOT16_HI
2368 ENUMX
2369 BFD_RELOC_PPC64_PLTGOT16_HA
2370 ENUMX
2371 BFD_RELOC_PPC64_ADDR16_DS
2372 ENUMX
2373 BFD_RELOC_PPC64_ADDR16_LO_DS
2374 ENUMX
2375 BFD_RELOC_PPC64_GOT16_DS
2376 ENUMX
2377 BFD_RELOC_PPC64_GOT16_LO_DS
2378 ENUMX
2379 BFD_RELOC_PPC64_PLT16_LO_DS
2380 ENUMX
2381 BFD_RELOC_PPC64_SECTOFF_DS
2382 ENUMX
2383 BFD_RELOC_PPC64_SECTOFF_LO_DS
2384 ENUMX
2385 BFD_RELOC_PPC64_TOC16_DS
2386 ENUMX
2387 BFD_RELOC_PPC64_TOC16_LO_DS
2388 ENUMX
2389 BFD_RELOC_PPC64_PLTGOT16_DS
2390 ENUMX
2391 BFD_RELOC_PPC64_PLTGOT16_LO_DS
2392 ENUMDOC
2393 Power(rs6000) and PowerPC relocations.
2394
2395 ENUM
2396 BFD_RELOC_PPC_TLS
2397 ENUMX
2398 BFD_RELOC_PPC_DTPMOD
2399 ENUMX
2400 BFD_RELOC_PPC_TPREL16
2401 ENUMX
2402 BFD_RELOC_PPC_TPREL16_LO
2403 ENUMX
2404 BFD_RELOC_PPC_TPREL16_HI
2405 ENUMX
2406 BFD_RELOC_PPC_TPREL16_HA
2407 ENUMX
2408 BFD_RELOC_PPC_TPREL
2409 ENUMX
2410 BFD_RELOC_PPC_DTPREL16
2411 ENUMX
2412 BFD_RELOC_PPC_DTPREL16_LO
2413 ENUMX
2414 BFD_RELOC_PPC_DTPREL16_HI
2415 ENUMX
2416 BFD_RELOC_PPC_DTPREL16_HA
2417 ENUMX
2418 BFD_RELOC_PPC_DTPREL
2419 ENUMX
2420 BFD_RELOC_PPC_GOT_TLSGD16
2421 ENUMX
2422 BFD_RELOC_PPC_GOT_TLSGD16_LO
2423 ENUMX
2424 BFD_RELOC_PPC_GOT_TLSGD16_HI
2425 ENUMX
2426 BFD_RELOC_PPC_GOT_TLSGD16_HA
2427 ENUMX
2428 BFD_RELOC_PPC_GOT_TLSLD16
2429 ENUMX
2430 BFD_RELOC_PPC_GOT_TLSLD16_LO
2431 ENUMX
2432 BFD_RELOC_PPC_GOT_TLSLD16_HI
2433 ENUMX
2434 BFD_RELOC_PPC_GOT_TLSLD16_HA
2435 ENUMX
2436 BFD_RELOC_PPC_GOT_TPREL16
2437 ENUMX
2438 BFD_RELOC_PPC_GOT_TPREL16_LO
2439 ENUMX
2440 BFD_RELOC_PPC_GOT_TPREL16_HI
2441 ENUMX
2442 BFD_RELOC_PPC_GOT_TPREL16_HA
2443 ENUMX
2444 BFD_RELOC_PPC_GOT_DTPREL16
2445 ENUMX
2446 BFD_RELOC_PPC_GOT_DTPREL16_LO
2447 ENUMX
2448 BFD_RELOC_PPC_GOT_DTPREL16_HI
2449 ENUMX
2450 BFD_RELOC_PPC_GOT_DTPREL16_HA
2451 ENUMX
2452 BFD_RELOC_PPC64_TPREL16_DS
2453 ENUMX
2454 BFD_RELOC_PPC64_TPREL16_LO_DS
2455 ENUMX
2456 BFD_RELOC_PPC64_TPREL16_HIGHER
2457 ENUMX
2458 BFD_RELOC_PPC64_TPREL16_HIGHERA
2459 ENUMX
2460 BFD_RELOC_PPC64_TPREL16_HIGHEST
2461 ENUMX
2462 BFD_RELOC_PPC64_TPREL16_HIGHESTA
2463 ENUMX
2464 BFD_RELOC_PPC64_DTPREL16_DS
2465 ENUMX
2466 BFD_RELOC_PPC64_DTPREL16_LO_DS
2467 ENUMX
2468 BFD_RELOC_PPC64_DTPREL16_HIGHER
2469 ENUMX
2470 BFD_RELOC_PPC64_DTPREL16_HIGHERA
2471 ENUMX
2472 BFD_RELOC_PPC64_DTPREL16_HIGHEST
2473 ENUMX
2474 BFD_RELOC_PPC64_DTPREL16_HIGHESTA
2475 ENUMDOC
2476 PowerPC and PowerPC64 thread-local storage relocations.
2477
2478 ENUM
2479 BFD_RELOC_I370_D12
2480 ENUMDOC
2481 IBM 370/390 relocations
2482
2483 ENUM
2484 BFD_RELOC_CTOR
2485 ENUMDOC
2486 The type of reloc used to build a contructor table - at the moment
2487 probably a 32 bit wide absolute relocation, but the target can choose.
2488 It generally does map to one of the other relocation types.
2489
2490 ENUM
2491 BFD_RELOC_ARM_PCREL_BRANCH
2492 ENUMDOC
2493 ARM 26 bit pc-relative branch. The lowest two bits must be zero and are
2494 not stored in the instruction.
2495 ENUM
2496 BFD_RELOC_ARM_PCREL_BLX
2497 ENUMDOC
2498 ARM 26 bit pc-relative branch. The lowest bit must be zero and is
2499 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2500 field in the instruction.
2501 ENUM
2502 BFD_RELOC_THUMB_PCREL_BLX
2503 ENUMDOC
2504 Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
2505 not stored in the instruction. The 2nd lowest bit comes from a 1 bit
2506 field in the instruction.
2507 ENUM
2508 BFD_RELOC_ARM_IMMEDIATE
2509 ENUMX
2510 BFD_RELOC_ARM_ADRL_IMMEDIATE
2511 ENUMX
2512 BFD_RELOC_ARM_OFFSET_IMM
2513 ENUMX
2514 BFD_RELOC_ARM_SHIFT_IMM
2515 ENUMX
2516 BFD_RELOC_ARM_SWI
2517 ENUMX
2518 BFD_RELOC_ARM_MULTI
2519 ENUMX
2520 BFD_RELOC_ARM_CP_OFF_IMM
2521 ENUMX
2522 BFD_RELOC_ARM_ADR_IMM
2523 ENUMX
2524 BFD_RELOC_ARM_LDR_IMM
2525 ENUMX
2526 BFD_RELOC_ARM_LITERAL
2527 ENUMX
2528 BFD_RELOC_ARM_IN_POOL
2529 ENUMX
2530 BFD_RELOC_ARM_OFFSET_IMM8
2531 ENUMX
2532 BFD_RELOC_ARM_HWLITERAL
2533 ENUMX
2534 BFD_RELOC_ARM_THUMB_ADD
2535 ENUMX
2536 BFD_RELOC_ARM_THUMB_IMM
2537 ENUMX
2538 BFD_RELOC_ARM_THUMB_SHIFT
2539 ENUMX
2540 BFD_RELOC_ARM_THUMB_OFFSET
2541 ENUMX
2542 BFD_RELOC_ARM_GOT12
2543 ENUMX
2544 BFD_RELOC_ARM_GOT32
2545 ENUMX
2546 BFD_RELOC_ARM_JUMP_SLOT
2547 ENUMX
2548 BFD_RELOC_ARM_COPY
2549 ENUMX
2550 BFD_RELOC_ARM_GLOB_DAT
2551 ENUMX
2552 BFD_RELOC_ARM_PLT32
2553 ENUMX
2554 BFD_RELOC_ARM_RELATIVE
2555 ENUMX
2556 BFD_RELOC_ARM_GOTOFF
2557 ENUMX
2558 BFD_RELOC_ARM_GOTPC
2559 ENUMDOC
2560 These relocs are only used within the ARM assembler. They are not
2561 (at present) written to any object files.
2562
2563 ENUM
2564 BFD_RELOC_SH_PCDISP8BY2
2565 ENUMX
2566 BFD_RELOC_SH_PCDISP12BY2
2567 ENUMX
2568 BFD_RELOC_SH_IMM4
2569 ENUMX
2570 BFD_RELOC_SH_IMM4BY2
2571 ENUMX
2572 BFD_RELOC_SH_IMM4BY4
2573 ENUMX
2574 BFD_RELOC_SH_IMM8
2575 ENUMX
2576 BFD_RELOC_SH_IMM8BY2
2577 ENUMX
2578 BFD_RELOC_SH_IMM8BY4
2579 ENUMX
2580 BFD_RELOC_SH_PCRELIMM8BY2
2581 ENUMX
2582 BFD_RELOC_SH_PCRELIMM8BY4
2583 ENUMX
2584 BFD_RELOC_SH_SWITCH16
2585 ENUMX
2586 BFD_RELOC_SH_SWITCH32
2587 ENUMX
2588 BFD_RELOC_SH_USES
2589 ENUMX
2590 BFD_RELOC_SH_COUNT
2591 ENUMX
2592 BFD_RELOC_SH_ALIGN
2593 ENUMX
2594 BFD_RELOC_SH_CODE
2595 ENUMX
2596 BFD_RELOC_SH_DATA
2597 ENUMX
2598 BFD_RELOC_SH_LABEL
2599 ENUMX
2600 BFD_RELOC_SH_LOOP_START
2601 ENUMX
2602 BFD_RELOC_SH_LOOP_END
2603 ENUMX
2604 BFD_RELOC_SH_COPY
2605 ENUMX
2606 BFD_RELOC_SH_GLOB_DAT
2607 ENUMX
2608 BFD_RELOC_SH_JMP_SLOT
2609 ENUMX
2610 BFD_RELOC_SH_RELATIVE
2611 ENUMX
2612 BFD_RELOC_SH_GOTPC
2613 ENUMX
2614 BFD_RELOC_SH_GOT_LOW16
2615 ENUMX
2616 BFD_RELOC_SH_GOT_MEDLOW16
2617 ENUMX
2618 BFD_RELOC_SH_GOT_MEDHI16
2619 ENUMX
2620 BFD_RELOC_SH_GOT_HI16
2621 ENUMX
2622 BFD_RELOC_SH_GOTPLT_LOW16
2623 ENUMX
2624 BFD_RELOC_SH_GOTPLT_MEDLOW16
2625 ENUMX
2626 BFD_RELOC_SH_GOTPLT_MEDHI16
2627 ENUMX
2628 BFD_RELOC_SH_GOTPLT_HI16
2629 ENUMX
2630 BFD_RELOC_SH_PLT_LOW16
2631 ENUMX
2632 BFD_RELOC_SH_PLT_MEDLOW16
2633 ENUMX
2634 BFD_RELOC_SH_PLT_MEDHI16
2635 ENUMX
2636 BFD_RELOC_SH_PLT_HI16
2637 ENUMX
2638 BFD_RELOC_SH_GOTOFF_LOW16
2639 ENUMX
2640 BFD_RELOC_SH_GOTOFF_MEDLOW16
2641 ENUMX
2642 BFD_RELOC_SH_GOTOFF_MEDHI16
2643 ENUMX
2644 BFD_RELOC_SH_GOTOFF_HI16
2645 ENUMX
2646 BFD_RELOC_SH_GOTPC_LOW16
2647 ENUMX
2648 BFD_RELOC_SH_GOTPC_MEDLOW16
2649 ENUMX
2650 BFD_RELOC_SH_GOTPC_MEDHI16
2651 ENUMX
2652 BFD_RELOC_SH_GOTPC_HI16
2653 ENUMX
2654 BFD_RELOC_SH_COPY64
2655 ENUMX
2656 BFD_RELOC_SH_GLOB_DAT64
2657 ENUMX
2658 BFD_RELOC_SH_JMP_SLOT64
2659 ENUMX
2660 BFD_RELOC_SH_RELATIVE64
2661 ENUMX
2662 BFD_RELOC_SH_GOT10BY4
2663 ENUMX
2664 BFD_RELOC_SH_GOT10BY8
2665 ENUMX
2666 BFD_RELOC_SH_GOTPLT10BY4
2667 ENUMX
2668 BFD_RELOC_SH_GOTPLT10BY8
2669 ENUMX
2670 BFD_RELOC_SH_GOTPLT32
2671 ENUMX
2672 BFD_RELOC_SH_SHMEDIA_CODE
2673 ENUMX
2674 BFD_RELOC_SH_IMMU5
2675 ENUMX
2676 BFD_RELOC_SH_IMMS6
2677 ENUMX
2678 BFD_RELOC_SH_IMMS6BY32
2679 ENUMX
2680 BFD_RELOC_SH_IMMU6
2681 ENUMX
2682 BFD_RELOC_SH_IMMS10
2683 ENUMX
2684 BFD_RELOC_SH_IMMS10BY2
2685 ENUMX
2686 BFD_RELOC_SH_IMMS10BY4
2687 ENUMX
2688 BFD_RELOC_SH_IMMS10BY8
2689 ENUMX
2690 BFD_RELOC_SH_IMMS16
2691 ENUMX
2692 BFD_RELOC_SH_IMMU16
2693 ENUMX
2694 BFD_RELOC_SH_IMM_LOW16
2695 ENUMX
2696 BFD_RELOC_SH_IMM_LOW16_PCREL
2697 ENUMX
2698 BFD_RELOC_SH_IMM_MEDLOW16
2699 ENUMX
2700 BFD_RELOC_SH_IMM_MEDLOW16_PCREL
2701 ENUMX
2702 BFD_RELOC_SH_IMM_MEDHI16
2703 ENUMX
2704 BFD_RELOC_SH_IMM_MEDHI16_PCREL
2705 ENUMX
2706 BFD_RELOC_SH_IMM_HI16
2707 ENUMX
2708 BFD_RELOC_SH_IMM_HI16_PCREL
2709 ENUMX
2710 BFD_RELOC_SH_PT_16
2711 ENUMX
2712 BFD_RELOC_SH_TLS_GD_32
2713 ENUMX
2714 BFD_RELOC_SH_TLS_LD_32
2715 ENUMX
2716 BFD_RELOC_SH_TLS_LDO_32
2717 ENUMX
2718 BFD_RELOC_SH_TLS_IE_32
2719 ENUMX
2720 BFD_RELOC_SH_TLS_LE_32
2721 ENUMX
2722 BFD_RELOC_SH_TLS_DTPMOD32
2723 ENUMX
2724 BFD_RELOC_SH_TLS_DTPOFF32
2725 ENUMX
2726 BFD_RELOC_SH_TLS_TPOFF32
2727 ENUMDOC
2728 Hitachi SH relocs. Not all of these appear in object files.
2729
2730 ENUM
2731 BFD_RELOC_THUMB_PCREL_BRANCH9
2732 ENUMX
2733 BFD_RELOC_THUMB_PCREL_BRANCH12
2734 ENUMX
2735 BFD_RELOC_THUMB_PCREL_BRANCH23
2736 ENUMDOC
2737 Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must
2738 be zero and is not stored in the instruction.
2739
2740 ENUM
2741 BFD_RELOC_ARC_B22_PCREL
2742 ENUMDOC
2743 ARC Cores relocs.
2744 ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
2745 not stored in the instruction. The high 20 bits are installed in bits 26
2746 through 7 of the instruction.
2747 ENUM
2748 BFD_RELOC_ARC_B26
2749 ENUMDOC
2750 ARC 26 bit absolute branch. The lowest two bits must be zero and are not
2751 stored in the instruction. The high 24 bits are installed in bits 23
2752 through 0.
2753
2754 ENUM
2755 BFD_RELOC_D10V_10_PCREL_R
2756 ENUMDOC
2757 Mitsubishi D10V relocs.
2758 This is a 10-bit reloc with the right 2 bits
2759 assumed to be 0.
2760 ENUM
2761 BFD_RELOC_D10V_10_PCREL_L
2762 ENUMDOC
2763 Mitsubishi D10V relocs.
2764 This is a 10-bit reloc with the right 2 bits
2765 assumed to be 0. This is the same as the previous reloc
2766 except it is in the left container, i.e.,
2767 shifted left 15 bits.
2768 ENUM
2769 BFD_RELOC_D10V_18
2770 ENUMDOC
2771 This is an 18-bit reloc with the right 2 bits
2772 assumed to be 0.
2773 ENUM
2774 BFD_RELOC_D10V_18_PCREL
2775 ENUMDOC
2776 This is an 18-bit reloc with the right 2 bits
2777 assumed to be 0.
2778
2779 ENUM
2780 BFD_RELOC_D30V_6
2781 ENUMDOC
2782 Mitsubishi D30V relocs.
2783 This is a 6-bit absolute reloc.
2784 ENUM
2785 BFD_RELOC_D30V_9_PCREL
2786 ENUMDOC
2787 This is a 6-bit pc-relative reloc with
2788 the right 3 bits assumed to be 0.
2789 ENUM
2790 BFD_RELOC_D30V_9_PCREL_R
2791 ENUMDOC
2792 This is a 6-bit pc-relative reloc with
2793 the right 3 bits assumed to be 0. Same
2794 as the previous reloc but on the right side
2795 of the container.
2796 ENUM
2797 BFD_RELOC_D30V_15
2798 ENUMDOC
2799 This is a 12-bit absolute reloc with the
2800 right 3 bitsassumed to be 0.
2801 ENUM
2802 BFD_RELOC_D30V_15_PCREL
2803 ENUMDOC
2804 This is a 12-bit pc-relative reloc with
2805 the right 3 bits assumed to be 0.
2806 ENUM
2807 BFD_RELOC_D30V_15_PCREL_R
2808 ENUMDOC
2809 This is a 12-bit pc-relative reloc with
2810 the right 3 bits assumed to be 0. Same
2811 as the previous reloc but on the right side
2812 of the container.
2813 ENUM
2814 BFD_RELOC_D30V_21
2815 ENUMDOC
2816 This is an 18-bit absolute reloc with
2817 the right 3 bits assumed to be 0.
2818 ENUM
2819 BFD_RELOC_D30V_21_PCREL
2820 ENUMDOC
2821 This is an 18-bit pc-relative reloc with
2822 the right 3 bits assumed to be 0.
2823 ENUM
2824 BFD_RELOC_D30V_21_PCREL_R
2825 ENUMDOC
2826 This is an 18-bit pc-relative reloc with
2827 the right 3 bits assumed to be 0. Same
2828 as the previous reloc but on the right side
2829 of the container.
2830 ENUM
2831 BFD_RELOC_D30V_32
2832 ENUMDOC
2833 This is a 32-bit absolute reloc.
2834 ENUM
2835 BFD_RELOC_D30V_32_PCREL
2836 ENUMDOC
2837 This is a 32-bit pc-relative reloc.
2838
2839 ENUM
2840 BFD_RELOC_DLX_HI16_S
2841 ENUMDOC
2842 DLX relocs
2843 ENUM
2844 BFD_RELOC_DLX_LO16
2845 ENUMDOC
2846 DLX relocs
2847 ENUM
2848 BFD_RELOC_DLX_JMP26
2849 ENUMDOC
2850 DLX relocs
2851
2852 ENUM
2853 BFD_RELOC_M32R_24
2854 ENUMDOC
2855 Mitsubishi M32R relocs.
2856 This is a 24 bit absolute address.
2857 ENUM
2858 BFD_RELOC_M32R_10_PCREL
2859 ENUMDOC
2860 This is a 10-bit pc-relative reloc with the right 2 bits assumed to be 0.
2861 ENUM
2862 BFD_RELOC_M32R_18_PCREL
2863 ENUMDOC
2864 This is an 18-bit reloc with the right 2 bits assumed to be 0.
2865 ENUM
2866 BFD_RELOC_M32R_26_PCREL
2867 ENUMDOC
2868 This is a 26-bit reloc with the right 2 bits assumed to be 0.
2869 ENUM
2870 BFD_RELOC_M32R_HI16_ULO
2871 ENUMDOC
2872 This is a 16-bit reloc containing the high 16 bits of an address
2873 used when the lower 16 bits are treated as unsigned.
2874 ENUM
2875 BFD_RELOC_M32R_HI16_SLO
2876 ENUMDOC
2877 This is a 16-bit reloc containing the high 16 bits of an address
2878 used when the lower 16 bits are treated as signed.
2879 ENUM
2880 BFD_RELOC_M32R_LO16
2881 ENUMDOC
2882 This is a 16-bit reloc containing the lower 16 bits of an address.
2883 ENUM
2884 BFD_RELOC_M32R_SDA16
2885 ENUMDOC
2886 This is a 16-bit reloc containing the small data area offset for use in
2887 add3, load, and store instructions.
2888
2889 ENUM
2890 BFD_RELOC_V850_9_PCREL
2891 ENUMDOC
2892 This is a 9-bit reloc
2893 ENUM
2894 BFD_RELOC_V850_22_PCREL
2895 ENUMDOC
2896 This is a 22-bit reloc
2897
2898 ENUM
2899 BFD_RELOC_V850_SDA_16_16_OFFSET
2900 ENUMDOC
2901 This is a 16 bit offset from the short data area pointer.
2902 ENUM
2903 BFD_RELOC_V850_SDA_15_16_OFFSET
2904 ENUMDOC
2905 This is a 16 bit offset (of which only 15 bits are used) from the
2906 short data area pointer.
2907 ENUM
2908 BFD_RELOC_V850_ZDA_16_16_OFFSET
2909 ENUMDOC
2910 This is a 16 bit offset from the zero data area pointer.
2911 ENUM
2912 BFD_RELOC_V850_ZDA_15_16_OFFSET
2913 ENUMDOC
2914 This is a 16 bit offset (of which only 15 bits are used) from the
2915 zero data area pointer.
2916 ENUM
2917 BFD_RELOC_V850_TDA_6_8_OFFSET
2918 ENUMDOC
2919 This is an 8 bit offset (of which only 6 bits are used) from the
2920 tiny data area pointer.
2921 ENUM
2922 BFD_RELOC_V850_TDA_7_8_OFFSET
2923 ENUMDOC
2924 This is an 8bit offset (of which only 7 bits are used) from the tiny
2925 data area pointer.
2926 ENUM
2927 BFD_RELOC_V850_TDA_7_7_OFFSET
2928 ENUMDOC
2929 This is a 7 bit offset from the tiny data area pointer.
2930 ENUM
2931 BFD_RELOC_V850_TDA_16_16_OFFSET
2932 ENUMDOC
2933 This is a 16 bit offset from the tiny data area pointer.
2934 COMMENT
2935 ENUM
2936 BFD_RELOC_V850_TDA_4_5_OFFSET
2937 ENUMDOC
2938 This is a 5 bit offset (of which only 4 bits are used) from the tiny
2939 data area pointer.
2940 ENUM
2941 BFD_RELOC_V850_TDA_4_4_OFFSET
2942 ENUMDOC
2943 This is a 4 bit offset from the tiny data area pointer.
2944 ENUM
2945 BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
2946 ENUMDOC
2947 This is a 16 bit offset from the short data area pointer, with the
2948 bits placed non-contigously in the instruction.
2949 ENUM
2950 BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
2951 ENUMDOC
2952 This is a 16 bit offset from the zero data area pointer, with the
2953 bits placed non-contigously in the instruction.
2954 ENUM
2955 BFD_RELOC_V850_CALLT_6_7_OFFSET
2956 ENUMDOC
2957 This is a 6 bit offset from the call table base pointer.
2958 ENUM
2959 BFD_RELOC_V850_CALLT_16_16_OFFSET
2960 ENUMDOC
2961 This is a 16 bit offset from the call table base pointer.
2962 ENUM
2963 BFD_RELOC_V850_LONGCALL
2964 ENUMDOC
2965 Used for relaxing indirect function calls.
2966 ENUM
2967 BFD_RELOC_V850_LONGJUMP
2968 ENUMDOC
2969 Used for relaxing indirect jumps.
2970 ENUM
2971 BFD_RELOC_V850_ALIGN
2972 ENUMDOC
2973 Used to maintain alignment whilst relaxing.
2974 ENUM
2975 BFD_RELOC_MN10300_32_PCREL
2976 ENUMDOC
2977 This is a 32bit pcrel reloc for the mn10300, offset by two bytes in the
2978 instruction.
2979 ENUM
2980 BFD_RELOC_MN10300_16_PCREL
2981 ENUMDOC
2982 This is a 16bit pcrel reloc for the mn10300, offset by two bytes in the
2983 instruction.
2984
2985 ENUM
2986 BFD_RELOC_TIC30_LDP
2987 ENUMDOC
2988 This is a 8bit DP reloc for the tms320c30, where the most
2989 significant 8 bits of a 24 bit word are placed into the least
2990 significant 8 bits of the opcode.
2991
2992 ENUM
2993 BFD_RELOC_TIC54X_PARTLS7
2994 ENUMDOC
2995 This is a 7bit reloc for the tms320c54x, where the least
2996 significant 7 bits of a 16 bit word are placed into the least
2997 significant 7 bits of the opcode.
2998
2999 ENUM
3000 BFD_RELOC_TIC54X_PARTMS9
3001 ENUMDOC
3002 This is a 9bit DP reloc for the tms320c54x, where the most
3003 significant 9 bits of a 16 bit word are placed into the least
3004 significant 9 bits of the opcode.
3005
3006 ENUM
3007 BFD_RELOC_TIC54X_23
3008 ENUMDOC
3009 This is an extended address 23-bit reloc for the tms320c54x.
3010
3011 ENUM
3012 BFD_RELOC_TIC54X_16_OF_23
3013 ENUMDOC
3014 This is a 16-bit reloc for the tms320c54x, where the least
3015 significant 16 bits of a 23-bit extended address are placed into
3016 the opcode.
3017
3018 ENUM
3019 BFD_RELOC_TIC54X_MS7_OF_23
3020 ENUMDOC
3021 This is a reloc for the tms320c54x, where the most
3022 significant 7 bits of a 23-bit extended address are placed into
3023 the opcode.
3024
3025 ENUM
3026 BFD_RELOC_FR30_48
3027 ENUMDOC
3028 This is a 48 bit reloc for the FR30 that stores 32 bits.
3029 ENUM
3030 BFD_RELOC_FR30_20
3031 ENUMDOC
3032 This is a 32 bit reloc for the FR30 that stores 20 bits split up into
3033 two sections.
3034 ENUM
3035 BFD_RELOC_FR30_6_IN_4
3036 ENUMDOC
3037 This is a 16 bit reloc for the FR30 that stores a 6 bit word offset in
3038 4 bits.
3039 ENUM
3040 BFD_RELOC_FR30_8_IN_8
3041 ENUMDOC
3042 This is a 16 bit reloc for the FR30 that stores an 8 bit byte offset
3043 into 8 bits.
3044 ENUM
3045 BFD_RELOC_FR30_9_IN_8
3046 ENUMDOC
3047 This is a 16 bit reloc for the FR30 that stores a 9 bit short offset
3048 into 8 bits.
3049 ENUM
3050 BFD_RELOC_FR30_10_IN_8
3051 ENUMDOC
3052 This is a 16 bit reloc for the FR30 that stores a 10 bit word offset
3053 into 8 bits.
3054 ENUM
3055 BFD_RELOC_FR30_9_PCREL
3056 ENUMDOC
3057 This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative
3058 short offset into 8 bits.
3059 ENUM
3060 BFD_RELOC_FR30_12_PCREL
3061 ENUMDOC
3062 This is a 16 bit reloc for the FR30 that stores a 12 bit pc relative
3063 short offset into 11 bits.
3064
3065 ENUM
3066 BFD_RELOC_MCORE_PCREL_IMM8BY4
3067 ENUMX
3068 BFD_RELOC_MCORE_PCREL_IMM11BY2
3069 ENUMX
3070 BFD_RELOC_MCORE_PCREL_IMM4BY2
3071 ENUMX
3072 BFD_RELOC_MCORE_PCREL_32
3073 ENUMX
3074 BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2
3075 ENUMX
3076 BFD_RELOC_MCORE_RVA
3077 ENUMDOC
3078 Motorola Mcore relocations.
3079
3080 ENUM
3081 BFD_RELOC_MMIX_GETA
3082 ENUMX
3083 BFD_RELOC_MMIX_GETA_1
3084 ENUMX
3085 BFD_RELOC_MMIX_GETA_2
3086 ENUMX
3087 BFD_RELOC_MMIX_GETA_3
3088 ENUMDOC
3089 These are relocations for the GETA instruction.
3090 ENUM
3091 BFD_RELOC_MMIX_CBRANCH
3092 ENUMX
3093 BFD_RELOC_MMIX_CBRANCH_J
3094 ENUMX
3095 BFD_RELOC_MMIX_CBRANCH_1
3096 ENUMX
3097 BFD_RELOC_MMIX_CBRANCH_2
3098 ENUMX
3099 BFD_RELOC_MMIX_CBRANCH_3
3100 ENUMDOC
3101 These are relocations for a conditional branch instruction.
3102 ENUM
3103 BFD_RELOC_MMIX_PUSHJ
3104 ENUMX
3105 BFD_RELOC_MMIX_PUSHJ_1
3106 ENUMX
3107 BFD_RELOC_MMIX_PUSHJ_2
3108 ENUMX
3109 BFD_RELOC_MMIX_PUSHJ_3
3110 ENUMDOC
3111 These are relocations for the PUSHJ instruction.
3112 ENUM
3113 BFD_RELOC_MMIX_JMP
3114 ENUMX
3115 BFD_RELOC_MMIX_JMP_1
3116 ENUMX
3117 BFD_RELOC_MMIX_JMP_2
3118 ENUMX
3119 BFD_RELOC_MMIX_JMP_3
3120 ENUMDOC
3121 These are relocations for the JMP instruction.
3122 ENUM
3123 BFD_RELOC_MMIX_ADDR19
3124 ENUMDOC
3125 This is a relocation for a relative address as in a GETA instruction or
3126 a branch.
3127 ENUM
3128 BFD_RELOC_MMIX_ADDR27
3129 ENUMDOC
3130 This is a relocation for a relative address as in a JMP instruction.
3131 ENUM
3132 BFD_RELOC_MMIX_REG_OR_BYTE
3133 ENUMDOC
3134 This is a relocation for an instruction field that may be a general
3135 register or a value 0..255.
3136 ENUM
3137 BFD_RELOC_MMIX_REG
3138 ENUMDOC
3139 This is a relocation for an instruction field that may be a general
3140 register.
3141 ENUM
3142 BFD_RELOC_MMIX_BASE_PLUS_OFFSET
3143 ENUMDOC
3144 This is a relocation for two instruction fields holding a register and
3145 an offset, the equivalent of the relocation.
3146 ENUM
3147 BFD_RELOC_MMIX_LOCAL
3148 ENUMDOC
3149 This relocation is an assertion that the expression is not allocated as
3150 a global register. It does not modify contents.
3151
3152 ENUM
3153 BFD_RELOC_AVR_7_PCREL
3154 ENUMDOC
3155 This is a 16 bit reloc for the AVR that stores 8 bit pc relative
3156 short offset into 7 bits.
3157 ENUM
3158 BFD_RELOC_AVR_13_PCREL
3159 ENUMDOC
3160 This is a 16 bit reloc for the AVR that stores 13 bit pc relative
3161 short offset into 12 bits.
3162 ENUM
3163 BFD_RELOC_AVR_16_PM
3164 ENUMDOC
3165 This is a 16 bit reloc for the AVR that stores 17 bit value (usually
3166 program memory address) into 16 bits.
3167 ENUM
3168 BFD_RELOC_AVR_LO8_LDI
3169 ENUMDOC
3170 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3171 data memory address) into 8 bit immediate value of LDI insn.
3172 ENUM
3173 BFD_RELOC_AVR_HI8_LDI
3174 ENUMDOC
3175 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3176 of data memory address) into 8 bit immediate value of LDI insn.
3177 ENUM
3178 BFD_RELOC_AVR_HH8_LDI
3179 ENUMDOC
3180 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3181 of program memory address) into 8 bit immediate value of LDI insn.
3182 ENUM
3183 BFD_RELOC_AVR_LO8_LDI_NEG
3184 ENUMDOC
3185 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3186 (usually data memory address) into 8 bit immediate value of SUBI insn.
3187 ENUM
3188 BFD_RELOC_AVR_HI8_LDI_NEG
3189 ENUMDOC
3190 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3191 (high 8 bit of data memory address) into 8 bit immediate value of
3192 SUBI insn.
3193 ENUM
3194 BFD_RELOC_AVR_HH8_LDI_NEG
3195 ENUMDOC
3196 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3197 (most high 8 bit of program memory address) into 8 bit immediate value
3198 of LDI or SUBI insn.
3199 ENUM
3200 BFD_RELOC_AVR_LO8_LDI_PM
3201 ENUMDOC
3202 This is a 16 bit reloc for the AVR that stores 8 bit value (usually
3203 command address) into 8 bit immediate value of LDI insn.
3204 ENUM
3205 BFD_RELOC_AVR_HI8_LDI_PM
3206 ENUMDOC
3207 This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
3208 of command address) into 8 bit immediate value of LDI insn.
3209 ENUM
3210 BFD_RELOC_AVR_HH8_LDI_PM
3211 ENUMDOC
3212 This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
3213 of command address) into 8 bit immediate value of LDI insn.
3214 ENUM
3215 BFD_RELOC_AVR_LO8_LDI_PM_NEG
3216 ENUMDOC
3217 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3218 (usually command address) into 8 bit immediate value of SUBI insn.
3219 ENUM
3220 BFD_RELOC_AVR_HI8_LDI_PM_NEG
3221 ENUMDOC
3222 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3223 (high 8 bit of 16 bit command address) into 8 bit immediate value
3224 of SUBI insn.
3225 ENUM
3226 BFD_RELOC_AVR_HH8_LDI_PM_NEG
3227 ENUMDOC
3228 This is a 16 bit reloc for the AVR that stores negated 8 bit value
3229 (high 6 bit of 22 bit command address) into 8 bit immediate
3230 value of SUBI insn.
3231 ENUM
3232 BFD_RELOC_AVR_CALL
3233 ENUMDOC
3234 This is a 32 bit reloc for the AVR that stores 23 bit value
3235 into 22 bits.
3236
3237 ENUM
3238 BFD_RELOC_390_12
3239 ENUMDOC
3240 Direct 12 bit.
3241 ENUM
3242 BFD_RELOC_390_GOT12
3243 ENUMDOC
3244 12 bit GOT offset.
3245 ENUM
3246 BFD_RELOC_390_PLT32
3247 ENUMDOC
3248 32 bit PC relative PLT address.
3249 ENUM
3250 BFD_RELOC_390_COPY
3251 ENUMDOC
3252 Copy symbol at runtime.
3253 ENUM
3254 BFD_RELOC_390_GLOB_DAT
3255 ENUMDOC
3256 Create GOT entry.
3257 ENUM
3258 BFD_RELOC_390_JMP_SLOT
3259 ENUMDOC
3260 Create PLT entry.
3261 ENUM
3262 BFD_RELOC_390_RELATIVE
3263 ENUMDOC
3264 Adjust by program base.
3265 ENUM
3266 BFD_RELOC_390_GOTPC
3267 ENUMDOC
3268 32 bit PC relative offset to GOT.
3269 ENUM
3270 BFD_RELOC_390_GOT16
3271 ENUMDOC
3272 16 bit GOT offset.
3273 ENUM
3274 BFD_RELOC_390_PC16DBL
3275 ENUMDOC
3276 PC relative 16 bit shifted by 1.
3277 ENUM
3278 BFD_RELOC_390_PLT16DBL
3279 ENUMDOC
3280 16 bit PC rel. PLT shifted by 1.
3281 ENUM
3282 BFD_RELOC_390_PC32DBL
3283 ENUMDOC
3284 PC relative 32 bit shifted by 1.
3285 ENUM
3286 BFD_RELOC_390_PLT32DBL
3287 ENUMDOC
3288 32 bit PC rel. PLT shifted by 1.
3289 ENUM
3290 BFD_RELOC_390_GOTPCDBL
3291 ENUMDOC
3292 32 bit PC rel. GOT shifted by 1.
3293 ENUM
3294 BFD_RELOC_390_GOT64
3295 ENUMDOC
3296 64 bit GOT offset.
3297 ENUM
3298 BFD_RELOC_390_PLT64
3299 ENUMDOC
3300 64 bit PC relative PLT address.
3301 ENUM
3302 BFD_RELOC_390_GOTENT
3303 ENUMDOC
3304 32 bit rel. offset to GOT entry.
3305 ENUM
3306 BFD_RELOC_390_GOTOFF64
3307 ENUMDOC
3308 64 bit offset to GOT.
3309 ENUM
3310 BFD_RELOC_390_GOTPLT12
3311 ENUMDOC
3312 12-bit offset to symbol-entry within GOT, with PLT handling.
3313 ENUM
3314 BFD_RELOC_390_GOTPLT16
3315 ENUMDOC
3316 16-bit offset to symbol-entry within GOT, with PLT handling.
3317 ENUM
3318 BFD_RELOC_390_GOTPLT32
3319 ENUMDOC
3320 32-bit offset to symbol-entry within GOT, with PLT handling.
3321 ENUM
3322 BFD_RELOC_390_GOTPLT64
3323 ENUMDOC
3324 64-bit offset to symbol-entry within GOT, with PLT handling.
3325 ENUM
3326 BFD_RELOC_390_GOTPLTENT
3327 ENUMDOC
3328 32-bit rel. offset to symbol-entry within GOT, with PLT handling.
3329 ENUM
3330 BFD_RELOC_390_PLTOFF16
3331 ENUMDOC
3332 16-bit rel. offset from the GOT to a PLT entry.
3333 ENUM
3334 BFD_RELOC_390_PLTOFF32
3335 ENUMDOC
3336 32-bit rel. offset from the GOT to a PLT entry.
3337 ENUM
3338 BFD_RELOC_390_PLTOFF64
3339 ENUMDOC
3340 64-bit rel. offset from the GOT to a PLT entry.
3341
3342 ENUM
3343 BFD_RELOC_390_TLS_LOAD
3344 ENUMX
3345 BFD_RELOC_390_TLS_GDCALL
3346 ENUMX
3347 BFD_RELOC_390_TLS_LDCALL
3348 ENUMX
3349 BFD_RELOC_390_TLS_GD32
3350 ENUMX
3351 BFD_RELOC_390_TLS_GD64
3352 ENUMX
3353 BFD_RELOC_390_TLS_GOTIE12
3354 ENUMX
3355 BFD_RELOC_390_TLS_GOTIE32
3356 ENUMX
3357 BFD_RELOC_390_TLS_GOTIE64
3358 ENUMX
3359 BFD_RELOC_390_TLS_LDM32
3360 ENUMX
3361 BFD_RELOC_390_TLS_LDM64
3362 ENUMX
3363 BFD_RELOC_390_TLS_IE32
3364 ENUMX
3365 BFD_RELOC_390_TLS_IE64
3366 ENUMX
3367 BFD_RELOC_390_TLS_IEENT
3368 ENUMX
3369 BFD_RELOC_390_TLS_LE32
3370 ENUMX
3371 BFD_RELOC_390_TLS_LE64
3372 ENUMX
3373 BFD_RELOC_390_TLS_LDO32
3374 ENUMX
3375 BFD_RELOC_390_TLS_LDO64
3376 ENUMX
3377 BFD_RELOC_390_TLS_DTPMOD
3378 ENUMX
3379 BFD_RELOC_390_TLS_DTPOFF
3380 ENUMX
3381 BFD_RELOC_390_TLS_TPOFF
3382 ENUMDOC
3383 s390 tls relocations.
3384
3385 ENUM
3386 BFD_RELOC_IP2K_FR9
3387 ENUMDOC
3388 Scenix IP2K - 9-bit register number / data address
3389 ENUM
3390 BFD_RELOC_IP2K_BANK
3391 ENUMDOC
3392 Scenix IP2K - 4-bit register/data bank number
3393 ENUM
3394 BFD_RELOC_IP2K_ADDR16CJP
3395 ENUMDOC
3396 Scenix IP2K - low 13 bits of instruction word address
3397 ENUM
3398 BFD_RELOC_IP2K_PAGE3
3399 ENUMDOC
3400 Scenix IP2K - high 3 bits of instruction word address
3401 ENUM
3402 BFD_RELOC_IP2K_LO8DATA
3403 ENUMX
3404 BFD_RELOC_IP2K_HI8DATA
3405 ENUMX
3406 BFD_RELOC_IP2K_EX8DATA
3407 ENUMDOC
3408 Scenix IP2K - ext/low/high 8 bits of data address
3409 ENUM
3410 BFD_RELOC_IP2K_LO8INSN
3411 ENUMX
3412 BFD_RELOC_IP2K_HI8INSN
3413 ENUMDOC
3414 Scenix IP2K - low/high 8 bits of instruction word address
3415 ENUM
3416 BFD_RELOC_IP2K_PC_SKIP
3417 ENUMDOC
3418 Scenix IP2K - even/odd PC modifier to modify snb pcl.0
3419 ENUM
3420 BFD_RELOC_IP2K_TEXT
3421 ENUMDOC
3422 Scenix IP2K - 16 bit word address in text section.
3423 ENUM
3424 BFD_RELOC_IP2K_FR_OFFSET
3425 ENUMDOC
3426 Scenix IP2K - 7-bit sp or dp offset
3427 ENUM
3428 BFD_RELOC_VPE4KMATH_DATA
3429 ENUMX
3430 BFD_RELOC_VPE4KMATH_INSN
3431 ENUMDOC
3432 Scenix VPE4K coprocessor - data/insn-space addressing
3433
3434 ENUM
3435 BFD_RELOC_VTABLE_INHERIT
3436 ENUMX
3437 BFD_RELOC_VTABLE_ENTRY
3438 ENUMDOC
3439 These two relocations are used by the linker to determine which of
3440 the entries in a C++ virtual function table are actually used. When
3441 the --gc-sections option is given, the linker will zero out the entries
3442 that are not used, so that the code for those functions need not be
3443 included in the output.
3444
3445 VTABLE_INHERIT is a zero-space relocation used to describe to the
3446 linker the inheritence tree of a C++ virtual function table. The
3447 relocation's symbol should be the parent class' vtable, and the
3448 relocation should be located at the child vtable.
3449
3450 VTABLE_ENTRY is a zero-space relocation that describes the use of a
3451 virtual function table entry. The reloc's symbol should refer to the
3452 table of the class mentioned in the code. Off of that base, an offset
3453 describes the entry that is being used. For Rela hosts, this offset
3454 is stored in the reloc's addend. For Rel hosts, we are forced to put
3455 this offset in the reloc's section offset.
3456
3457 ENUM
3458 BFD_RELOC_IA64_IMM14
3459 ENUMX
3460 BFD_RELOC_IA64_IMM22
3461 ENUMX
3462 BFD_RELOC_IA64_IMM64
3463 ENUMX
3464 BFD_RELOC_IA64_DIR32MSB
3465 ENUMX
3466 BFD_RELOC_IA64_DIR32LSB
3467 ENUMX
3468 BFD_RELOC_IA64_DIR64MSB
3469 ENUMX
3470 BFD_RELOC_IA64_DIR64LSB
3471 ENUMX
3472 BFD_RELOC_IA64_GPREL22
3473 ENUMX
3474 BFD_RELOC_IA64_GPREL64I
3475 ENUMX
3476 BFD_RELOC_IA64_GPREL32MSB
3477 ENUMX
3478 BFD_RELOC_IA64_GPREL32LSB
3479 ENUMX
3480 BFD_RELOC_IA64_GPREL64MSB
3481 ENUMX
3482 BFD_RELOC_IA64_GPREL64LSB
3483 ENUMX
3484 BFD_RELOC_IA64_LTOFF22
3485 ENUMX
3486 BFD_RELOC_IA64_LTOFF64I
3487 ENUMX
3488 BFD_RELOC_IA64_PLTOFF22
3489 ENUMX
3490 BFD_RELOC_IA64_PLTOFF64I
3491 ENUMX
3492 BFD_RELOC_IA64_PLTOFF64MSB
3493 ENUMX
3494 BFD_RELOC_IA64_PLTOFF64LSB
3495 ENUMX
3496 BFD_RELOC_IA64_FPTR64I
3497 ENUMX
3498 BFD_RELOC_IA64_FPTR32MSB
3499 ENUMX
3500 BFD_RELOC_IA64_FPTR32LSB
3501 ENUMX
3502 BFD_RELOC_IA64_FPTR64MSB
3503 ENUMX
3504 BFD_RELOC_IA64_FPTR64LSB
3505 ENUMX
3506 BFD_RELOC_IA64_PCREL21B
3507 ENUMX
3508 BFD_RELOC_IA64_PCREL21BI
3509 ENUMX
3510 BFD_RELOC_IA64_PCREL21M
3511 ENUMX
3512 BFD_RELOC_IA64_PCREL21F
3513 ENUMX
3514 BFD_RELOC_IA64_PCREL22
3515 ENUMX
3516 BFD_RELOC_IA64_PCREL60B
3517 ENUMX
3518 BFD_RELOC_IA64_PCREL64I
3519 ENUMX
3520 BFD_RELOC_IA64_PCREL32MSB
3521 ENUMX
3522 BFD_RELOC_IA64_PCREL32LSB
3523 ENUMX
3524 BFD_RELOC_IA64_PCREL64MSB
3525 ENUMX
3526 BFD_RELOC_IA64_PCREL64LSB
3527 ENUMX
3528 BFD_RELOC_IA64_LTOFF_FPTR22
3529 ENUMX
3530 BFD_RELOC_IA64_LTOFF_FPTR64I
3531 ENUMX
3532 BFD_RELOC_IA64_LTOFF_FPTR32MSB
3533 ENUMX
3534 BFD_RELOC_IA64_LTOFF_FPTR32LSB
3535 ENUMX
3536 BFD_RELOC_IA64_LTOFF_FPTR64MSB
3537 ENUMX
3538 BFD_RELOC_IA64_LTOFF_FPTR64LSB
3539 ENUMX
3540 BFD_RELOC_IA64_SEGREL32MSB
3541 ENUMX
3542 BFD_RELOC_IA64_SEGREL32LSB
3543 ENUMX
3544 BFD_RELOC_IA64_SEGREL64MSB
3545 ENUMX
3546 BFD_RELOC_IA64_SEGREL64LSB
3547 ENUMX
3548 BFD_RELOC_IA64_SECREL32MSB
3549 ENUMX
3550 BFD_RELOC_IA64_SECREL32LSB
3551 ENUMX
3552 BFD_RELOC_IA64_SECREL64MSB
3553 ENUMX
3554 BFD_RELOC_IA64_SECREL64LSB
3555 ENUMX
3556 BFD_RELOC_IA64_REL32MSB
3557 ENUMX
3558 BFD_RELOC_IA64_REL32LSB
3559 ENUMX
3560 BFD_RELOC_IA64_REL64MSB
3561 ENUMX
3562 BFD_RELOC_IA64_REL64LSB
3563 ENUMX
3564 BFD_RELOC_IA64_LTV32MSB
3565 ENUMX
3566 BFD_RELOC_IA64_LTV32LSB
3567 ENUMX
3568 BFD_RELOC_IA64_LTV64MSB
3569 ENUMX
3570 BFD_RELOC_IA64_LTV64LSB
3571 ENUMX
3572 BFD_RELOC_IA64_IPLTMSB
3573 ENUMX
3574 BFD_RELOC_IA64_IPLTLSB
3575 ENUMX
3576 BFD_RELOC_IA64_COPY
3577 ENUMX
3578 BFD_RELOC_IA64_LTOFF22X
3579 ENUMX
3580 BFD_RELOC_IA64_LDXMOV
3581 ENUMX
3582 BFD_RELOC_IA64_TPREL14
3583 ENUMX
3584 BFD_RELOC_IA64_TPREL22
3585 ENUMX
3586 BFD_RELOC_IA64_TPREL64I
3587 ENUMX
3588 BFD_RELOC_IA64_TPREL64MSB
3589 ENUMX
3590 BFD_RELOC_IA64_TPREL64LSB
3591 ENUMX
3592 BFD_RELOC_IA64_LTOFF_TPREL22
3593 ENUMX
3594 BFD_RELOC_IA64_DTPMOD64MSB
3595 ENUMX
3596 BFD_RELOC_IA64_DTPMOD64LSB
3597 ENUMX
3598 BFD_RELOC_IA64_LTOFF_DTPMOD22
3599 ENUMX
3600 BFD_RELOC_IA64_DTPREL14
3601 ENUMX
3602 BFD_RELOC_IA64_DTPREL22
3603 ENUMX
3604 BFD_RELOC_IA64_DTPREL64I
3605 ENUMX
3606 BFD_RELOC_IA64_DTPREL32MSB
3607 ENUMX
3608 BFD_RELOC_IA64_DTPREL32LSB
3609 ENUMX
3610 BFD_RELOC_IA64_DTPREL64MSB
3611 ENUMX
3612 BFD_RELOC_IA64_DTPREL64LSB
3613 ENUMX
3614 BFD_RELOC_IA64_LTOFF_DTPREL22
3615 ENUMDOC
3616 Intel IA64 Relocations.
3617
3618 ENUM
3619 BFD_RELOC_M68HC11_HI8
3620 ENUMDOC
3621 Motorola 68HC11 reloc.
3622 This is the 8 bit high part of an absolute address.
3623 ENUM
3624 BFD_RELOC_M68HC11_LO8
3625 ENUMDOC
3626 Motorola 68HC11 reloc.
3627 This is the 8 bit low part of an absolute address.
3628 ENUM
3629 BFD_RELOC_M68HC11_3B
3630 ENUMDOC
3631 Motorola 68HC11 reloc.
3632 This is the 3 bit of a value.
3633 ENUM
3634 BFD_RELOC_M68HC11_RL_JUMP
3635 ENUMDOC
3636 Motorola 68HC11 reloc.
3637 This reloc marks the beginning of a jump/call instruction.
3638 It is used for linker relaxation to correctly identify beginning
3639 of instruction and change some branchs to use PC-relative
3640 addressing mode.
3641 ENUM
3642 BFD_RELOC_M68HC11_RL_GROUP
3643 ENUMDOC
3644 Motorola 68HC11 reloc.
3645 This reloc marks a group of several instructions that gcc generates
3646 and for which the linker relaxation pass can modify and/or remove
3647 some of them.
3648 ENUM
3649 BFD_RELOC_M68HC11_LO16
3650 ENUMDOC
3651 Motorola 68HC11 reloc.
3652 This is the 16-bit lower part of an address. It is used for 'call'
3653 instruction to specify the symbol address without any special
3654 transformation (due to memory bank window).
3655 ENUM
3656 BFD_RELOC_M68HC11_PAGE
3657 ENUMDOC
3658 Motorola 68HC11 reloc.
3659 This is a 8-bit reloc that specifies the page number of an address.
3660 It is used by 'call' instruction to specify the page number of
3661 the symbol.
3662 ENUM
3663 BFD_RELOC_M68HC11_24
3664 ENUMDOC
3665 Motorola 68HC11 reloc.
3666 This is a 24-bit reloc that represents the address with a 16-bit
3667 value and a 8-bit page number. The symbol address is transformed
3668 to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
3669
3670 ENUM
3671 BFD_RELOC_CRIS_BDISP8
3672 ENUMX
3673 BFD_RELOC_CRIS_UNSIGNED_5
3674 ENUMX
3675 BFD_RELOC_CRIS_SIGNED_6
3676 ENUMX
3677 BFD_RELOC_CRIS_UNSIGNED_6
3678 ENUMX
3679 BFD_RELOC_CRIS_UNSIGNED_4
3680 ENUMDOC
3681 These relocs are only used within the CRIS assembler. They are not
3682 (at present) written to any object files.
3683 ENUM
3684 BFD_RELOC_CRIS_COPY
3685 ENUMX
3686 BFD_RELOC_CRIS_GLOB_DAT
3687 ENUMX
3688 BFD_RELOC_CRIS_JUMP_SLOT
3689 ENUMX
3690 BFD_RELOC_CRIS_RELATIVE
3691 ENUMDOC
3692 Relocs used in ELF shared libraries for CRIS.
3693 ENUM
3694 BFD_RELOC_CRIS_32_GOT
3695 ENUMDOC
3696 32-bit offset to symbol-entry within GOT.
3697 ENUM
3698 BFD_RELOC_CRIS_16_GOT
3699 ENUMDOC
3700 16-bit offset to symbol-entry within GOT.
3701 ENUM
3702 BFD_RELOC_CRIS_32_GOTPLT
3703 ENUMDOC
3704 32-bit offset to symbol-entry within GOT, with PLT handling.
3705 ENUM
3706 BFD_RELOC_CRIS_16_GOTPLT
3707 ENUMDOC
3708 16-bit offset to symbol-entry within GOT, with PLT handling.
3709 ENUM
3710 BFD_RELOC_CRIS_32_GOTREL
3711 ENUMDOC
3712 32-bit offset to symbol, relative to GOT.
3713 ENUM
3714 BFD_RELOC_CRIS_32_PLT_GOTREL
3715 ENUMDOC
3716 32-bit offset to symbol with PLT entry, relative to GOT.
3717 ENUM
3718 BFD_RELOC_CRIS_32_PLT_PCREL
3719 ENUMDOC
3720 32-bit offset to symbol with PLT entry, relative to this relocation.
3721
3722 ENUM
3723 BFD_RELOC_860_COPY
3724 ENUMX
3725 BFD_RELOC_860_GLOB_DAT
3726 ENUMX
3727 BFD_RELOC_860_JUMP_SLOT
3728 ENUMX
3729 BFD_RELOC_860_RELATIVE
3730 ENUMX
3731 BFD_RELOC_860_PC26
3732 ENUMX
3733 BFD_RELOC_860_PLT26
3734 ENUMX
3735 BFD_RELOC_860_PC16
3736 ENUMX
3737 BFD_RELOC_860_LOW0
3738 ENUMX
3739 BFD_RELOC_860_SPLIT0
3740 ENUMX
3741 BFD_RELOC_860_LOW1
3742 ENUMX
3743 BFD_RELOC_860_SPLIT1
3744 ENUMX
3745 BFD_RELOC_860_LOW2
3746 ENUMX
3747 BFD_RELOC_860_SPLIT2
3748 ENUMX
3749 BFD_RELOC_860_LOW3
3750 ENUMX
3751 BFD_RELOC_860_LOGOT0
3752 ENUMX
3753 BFD_RELOC_860_SPGOT0
3754 ENUMX
3755 BFD_RELOC_860_LOGOT1
3756 ENUMX
3757 BFD_RELOC_860_SPGOT1
3758 ENUMX
3759 BFD_RELOC_860_LOGOTOFF0
3760 ENUMX
3761 BFD_RELOC_860_SPGOTOFF0
3762 ENUMX
3763 BFD_RELOC_860_LOGOTOFF1
3764 ENUMX
3765 BFD_RELOC_860_SPGOTOFF1
3766 ENUMX
3767 BFD_RELOC_860_LOGOTOFF2
3768 ENUMX
3769 BFD_RELOC_860_LOGOTOFF3
3770 ENUMX
3771 BFD_RELOC_860_LOPC
3772 ENUMX
3773 BFD_RELOC_860_HIGHADJ
3774 ENUMX
3775 BFD_RELOC_860_HAGOT
3776 ENUMX
3777 BFD_RELOC_860_HAGOTOFF
3778 ENUMX
3779 BFD_RELOC_860_HAPC
3780 ENUMX
3781 BFD_RELOC_860_HIGH
3782 ENUMX
3783 BFD_RELOC_860_HIGOT
3784 ENUMX
3785 BFD_RELOC_860_HIGOTOFF
3786 ENUMDOC
3787 Intel i860 Relocations.
3788
3789 ENUM
3790 BFD_RELOC_OPENRISC_ABS_26
3791 ENUMX
3792 BFD_RELOC_OPENRISC_REL_26
3793 ENUMDOC
3794 OpenRISC Relocations.
3795
3796 ENUM
3797 BFD_RELOC_H8_DIR16A8
3798 ENUMX
3799 BFD_RELOC_H8_DIR16R8
3800 ENUMX
3801 BFD_RELOC_H8_DIR24A8
3802 ENUMX
3803 BFD_RELOC_H8_DIR24R8
3804 ENUMX
3805 BFD_RELOC_H8_DIR32A16
3806 ENUMDOC
3807 H8 elf Relocations.
3808
3809 ENUM
3810 BFD_RELOC_XSTORMY16_REL_12
3811 ENUMX
3812 BFD_RELOC_XSTORMY16_12
3813 ENUMX
3814 BFD_RELOC_XSTORMY16_24
3815 ENUMX
3816 BFD_RELOC_XSTORMY16_FPTR16
3817 ENUMDOC
3818 Sony Xstormy16 Relocations.
3819
3820 ENUM
3821 BFD_RELOC_VAX_GLOB_DAT
3822 ENUMX
3823 BFD_RELOC_VAX_JMP_SLOT
3824 ENUMX
3825 BFD_RELOC_VAX_RELATIVE
3826 ENUMDOC
3827 Relocations used by VAX ELF.
3828
3829 ENUM
3830 BFD_RELOC_MSP430_10_PCREL
3831 ENUMX
3832 BFD_RELOC_MSP430_16_PCREL
3833 ENUMX
3834 BFD_RELOC_MSP430_16
3835 ENUMX
3836 BFD_RELOC_MSP430_16_PCREL_BYTE
3837 ENUMX
3838 BFD_RELOC_MSP430_16_BYTE
3839 ENUMDOC
3840 msp430 specific relocation codes
3841
3842 ENUM
3843 BFD_RELOC_IQ2000_OFFSET_16
3844 ENUMX
3845 BFD_RELOC_IQ2000_OFFSET_21
3846 ENUMX
3847 BFD_RELOC_IQ2000_UHI16
3848 ENUMDOC
3849 IQ2000 Relocations.
3850
3851 ENDSENUM
3852 BFD_RELOC_UNUSED
3853 CODE_FRAGMENT
3854 .
3855 .typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
3856 */
3857
3858 /*
3859 FUNCTION
3860 bfd_reloc_type_lookup
3861
3862 SYNOPSIS
3863 reloc_howto_type *
3864 bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code);
3865
3866 DESCRIPTION
3867 Return a pointer to a howto structure which, when
3868 invoked, will perform the relocation @var{code} on data from the
3869 architecture noted.
3870
3871 */
3872
3873 reloc_howto_type *
3874 bfd_reloc_type_lookup (abfd, code)
3875 bfd *abfd;
3876 bfd_reloc_code_real_type code;
3877 {
3878 return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
3879 }
3880
3881 static reloc_howto_type bfd_howto_32 =
3882 HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
3883
3884 /*
3885 INTERNAL_FUNCTION
3886 bfd_default_reloc_type_lookup
3887
3888 SYNOPSIS
3889 reloc_howto_type *bfd_default_reloc_type_lookup
3890 (bfd *abfd, bfd_reloc_code_real_type code);
3891
3892 DESCRIPTION
3893 Provides a default relocation lookup routine for any architecture.
3894
3895 */
3896
3897 reloc_howto_type *
3898 bfd_default_reloc_type_lookup (abfd, code)
3899 bfd *abfd;
3900 bfd_reloc_code_real_type code;
3901 {
3902 switch (code)
3903 {
3904 case BFD_RELOC_CTOR:
3905 /* The type of reloc used in a ctor, which will be as wide as the
3906 address - so either a 64, 32, or 16 bitter. */
3907 switch (bfd_get_arch_info (abfd)->bits_per_address)
3908 {
3909 case 64:
3910 BFD_FAIL ();
3911 case 32:
3912 return &bfd_howto_32;
3913 case 16:
3914 BFD_FAIL ();
3915 default:
3916 BFD_FAIL ();
3917 }
3918 default:
3919 BFD_FAIL ();
3920 }
3921 return (reloc_howto_type *) NULL;
3922 }
3923
3924 /*
3925 FUNCTION
3926 bfd_get_reloc_code_name
3927
3928 SYNOPSIS
3929 const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code);
3930
3931 DESCRIPTION
3932 Provides a printable name for the supplied relocation code.
3933 Useful mainly for printing error messages.
3934 */
3935
3936 const char *
3937 bfd_get_reloc_code_name (code)
3938 bfd_reloc_code_real_type code;
3939 {
3940 if ((int) code > (int) BFD_RELOC_UNUSED)
3941 return 0;
3942 return bfd_reloc_code_real_names[(int)code];
3943 }
3944
3945 /*
3946 INTERNAL_FUNCTION
3947 bfd_generic_relax_section
3948
3949 SYNOPSIS
3950 bfd_boolean bfd_generic_relax_section
3951 (bfd *abfd,
3952 asection *section,
3953 struct bfd_link_info *,
3954 bfd_boolean *);
3955
3956 DESCRIPTION
3957 Provides default handling for relaxing for back ends which
3958 don't do relaxing -- i.e., does nothing.
3959 */
3960
3961 bfd_boolean
3962 bfd_generic_relax_section (abfd, section, link_info, again)
3963 bfd *abfd ATTRIBUTE_UNUSED;
3964 asection *section ATTRIBUTE_UNUSED;
3965 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
3966 bfd_boolean *again;
3967 {
3968 *again = FALSE;
3969 return TRUE;
3970 }
3971
3972 /*
3973 INTERNAL_FUNCTION
3974 bfd_generic_gc_sections
3975
3976 SYNOPSIS
3977 bfd_boolean bfd_generic_gc_sections
3978 (bfd *, struct bfd_link_info *);
3979
3980 DESCRIPTION
3981 Provides default handling for relaxing for back ends which
3982 don't do section gc -- i.e., does nothing.
3983 */
3984
3985 bfd_boolean
3986 bfd_generic_gc_sections (abfd, link_info)
3987 bfd *abfd ATTRIBUTE_UNUSED;
3988 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
3989 {
3990 return TRUE;
3991 }
3992
3993 /*
3994 INTERNAL_FUNCTION
3995 bfd_generic_merge_sections
3996
3997 SYNOPSIS
3998 bfd_boolean bfd_generic_merge_sections
3999 (bfd *, struct bfd_link_info *);
4000
4001 DESCRIPTION
4002 Provides default handling for SEC_MERGE section merging for back ends
4003 which don't have SEC_MERGE support -- i.e., does nothing.
4004 */
4005
4006 bfd_boolean
4007 bfd_generic_merge_sections (abfd, link_info)
4008 bfd *abfd ATTRIBUTE_UNUSED;
4009 struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
4010 {
4011 return TRUE;
4012 }
4013
4014 /*
4015 INTERNAL_FUNCTION
4016 bfd_generic_get_relocated_section_contents
4017
4018 SYNOPSIS
4019 bfd_byte *
4020 bfd_generic_get_relocated_section_contents (bfd *abfd,
4021 struct bfd_link_info *link_info,
4022 struct bfd_link_order *link_order,
4023 bfd_byte *data,
4024 bfd_boolean relocateable,
4025 asymbol **symbols);
4026
4027 DESCRIPTION
4028 Provides default handling of relocation effort for back ends
4029 which can't be bothered to do it efficiently.
4030
4031 */
4032
4033 bfd_byte *
4034 bfd_generic_get_relocated_section_contents (abfd, link_info, link_order, data,
4035 relocateable, symbols)
4036 bfd *abfd;
4037 struct bfd_link_info *link_info;
4038 struct bfd_link_order *link_order;
4039 bfd_byte *data;
4040 bfd_boolean relocateable;
4041 asymbol **symbols;
4042 {
4043 /* Get enough memory to hold the stuff. */
4044 bfd *input_bfd = link_order->u.indirect.section->owner;
4045 asection *input_section = link_order->u.indirect.section;
4046
4047 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
4048 arelent **reloc_vector = NULL;
4049 long reloc_count;
4050
4051 if (reloc_size < 0)
4052 goto error_return;
4053
4054 reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
4055 if (reloc_vector == NULL && reloc_size != 0)
4056 goto error_return;
4057
4058 /* Read in the section. */
4059 if (!bfd_get_section_contents (input_bfd,
4060 input_section,
4061 (PTR) data,
4062 (bfd_vma) 0,
4063 input_section->_raw_size))
4064 goto error_return;
4065
4066 /* We're not relaxing the section, so just copy the size info. */
4067 input_section->_cooked_size = input_section->_raw_size;
4068 input_section->reloc_done = TRUE;
4069
4070 reloc_count = bfd_canonicalize_reloc (input_bfd,
4071 input_section,
4072 reloc_vector,
4073 symbols);
4074 if (reloc_count < 0)
4075 goto error_return;
4076
4077 if (reloc_count > 0)
4078 {
4079 arelent **parent;
4080 for (parent = reloc_vector; *parent != (arelent *) NULL;
4081 parent++)
4082 {
4083 char *error_message = (char *) NULL;
4084 bfd_reloc_status_type r =
4085 bfd_perform_relocation (input_bfd,
4086 *parent,
4087 (PTR) data,
4088 input_section,
4089 relocateable ? abfd : (bfd *) NULL,
4090 &error_message);
4091
4092 if (relocateable)
4093 {
4094 asection *os = input_section->output_section;
4095
4096 /* A partial link, so keep the relocs. */
4097 os->orelocation[os->reloc_count] = *parent;
4098 os->reloc_count++;
4099 }
4100
4101 if (r != bfd_reloc_ok)
4102 {
4103 switch (r)
4104 {
4105 case bfd_reloc_undefined:
4106 if (!((*link_info->callbacks->undefined_symbol)
4107 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4108 input_bfd, input_section, (*parent)->address,
4109 TRUE)))
4110 goto error_return;
4111 break;
4112 case bfd_reloc_dangerous:
4113 BFD_ASSERT (error_message != (char *) NULL);
4114 if (!((*link_info->callbacks->reloc_dangerous)
4115 (link_info, error_message, input_bfd, input_section,
4116 (*parent)->address)))
4117 goto error_return;
4118 break;
4119 case bfd_reloc_overflow:
4120 if (!((*link_info->callbacks->reloc_overflow)
4121 (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
4122 (*parent)->howto->name, (*parent)->addend,
4123 input_bfd, input_section, (*parent)->address)))
4124 goto error_return;
4125 break;
4126 case bfd_reloc_outofrange:
4127 default:
4128 abort ();
4129 break;
4130 }
4131
4132 }
4133 }
4134 }
4135 if (reloc_vector != NULL)
4136 free (reloc_vector);
4137 return data;
4138
4139 error_return:
4140 if (reloc_vector != NULL)
4141 free (reloc_vector);
4142 return NULL;
4143 }
GDB Binutils - Deliverables
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