1 /* PowerPC-specific support for 32-bit ELF
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the
20 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* This file is based on a preliminary PowerPC ELF ABI. The
24 information may not match the final PowerPC ELF ABI. It includes
25 suggestions from the in-progress Embedded PowerPC ABI, and that
26 information may also not match. */
34 #include "elf32-ppc.h"
36 /* RELA relocations are used here. */
38 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
39 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
40 static bfd_reloc_status_type ppc_elf_unhandled_reloc
41 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
43 /* Branch prediction bit for branch taken relocs. */
44 #define BRANCH_PREDICT_BIT 0x200000
45 /* Mask to set RA in memory instructions. */
46 #define RA_REGISTER_MASK 0x001f0000
47 /* Value to shift register by to insert RA. */
48 #define RA_REGISTER_SHIFT 16
50 /* The name of the dynamic interpreter. This is put in the .interp
52 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
54 /* The size in bytes of an entry in the procedure linkage table. */
55 #define PLT_ENTRY_SIZE 12
56 /* The initial size of the plt reserved for the dynamic linker. */
57 #define PLT_INITIAL_ENTRY_SIZE 72
58 /* The size of the gap between entries in the PLT. */
59 #define PLT_SLOT_SIZE 8
60 /* The number of single-slot PLT entries (the rest use two slots). */
61 #define PLT_NUM_SINGLE_ENTRIES 8192
63 /* Some nop instructions. */
64 #define NOP 0x60000000
65 #define CROR_151515 0x4def7b82
66 #define CROR_313131 0x4ffffb82
68 /* Offset of tp and dtp pointers from start of TLS block. */
69 #define TP_OFFSET 0x7000
70 #define DTP_OFFSET 0x8000
73 /* The PPC linker needs to keep track of the number of relocs that it
74 decides to copy as dynamic relocs in check_relocs for each symbol.
75 This is so that it can later discard them if they are found to be
76 unnecessary. We store the information in a field extending the
77 regular ELF linker hash table. */
79 struct ppc_elf_dyn_relocs
81 struct ppc_elf_dyn_relocs
*next
;
83 /* The input section of the reloc. */
86 /* Total number of relocs copied for the input section. */
89 /* Number of pc-relative relocs copied for the input section. */
90 bfd_size_type pc_count
;
93 /* PPC ELF linker hash entry. */
95 struct ppc_elf_link_hash_entry
97 struct elf_link_hash_entry elf
;
99 /* Track dynamic relocs copied for this symbol. */
100 struct ppc_elf_dyn_relocs
*dyn_relocs
;
102 /* Contexts in which symbol is used in the GOT (or TOC).
103 TLS_GD .. TLS_TLS bits are or'd into the mask as the
104 corresponding relocs are encountered during check_relocs.
105 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
106 indicate the corresponding GOT entry type is not needed. */
107 #define TLS_GD 1 /* GD reloc. */
108 #define TLS_LD 2 /* LD reloc. */
109 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
110 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
111 #define TLS_TLS 16 /* Any TLS reloc. */
112 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
116 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
118 /* PPC ELF linker hash table. */
120 struct ppc_elf_link_hash_table
122 struct elf_link_hash_table elf
;
124 /* Short-cuts to get to dynamic linker sections. */
133 elf_linker_section_t
*sdata
;
134 elf_linker_section_t
*sdata2
;
136 /* Short-cut to first output tls section. */
139 /* Shortcut to .__tls_get_addr. */
140 struct elf_link_hash_entry
*tls_get_addr
;
142 /* TLS local dynamic got entry handling. */
144 bfd_signed_vma refcount
;
148 /* Small local sym to section mapping cache. */
149 struct sym_sec_cache sym_sec
;
152 /* Get the PPC ELF linker hash table from a link_info structure. */
154 #define ppc_elf_hash_table(p) \
155 ((struct ppc_elf_link_hash_table *) (p)->hash)
157 /* Create an entry in a PPC ELF linker hash table. */
159 static struct bfd_hash_entry
*
160 ppc_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
161 struct bfd_hash_table
*table
,
164 /* Allocate the structure if it has not already been allocated by a
168 entry
= bfd_hash_allocate (table
,
169 sizeof (struct ppc_elf_link_hash_entry
));
174 /* Call the allocation method of the superclass. */
175 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
178 ppc_elf_hash_entry (entry
)->dyn_relocs
= NULL
;
179 ppc_elf_hash_entry (entry
)->tls_mask
= 0;
185 /* Create a PPC ELF linker hash table. */
187 static struct bfd_link_hash_table
*
188 ppc_elf_link_hash_table_create (bfd
*abfd
)
190 struct ppc_elf_link_hash_table
*ret
;
192 ret
= bfd_malloc (sizeof (struct ppc_elf_link_hash_table
));
196 if (! _bfd_elf_link_hash_table_init (&ret
->elf
, abfd
,
197 ppc_elf_link_hash_newfunc
))
214 ret
->tls_get_addr
= NULL
;
215 ret
->tlsld_got
.refcount
= 0;
216 ret
->sym_sec
.abfd
= NULL
;
218 return &ret
->elf
.root
;
221 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
222 copying dynamic variables from a shared lib into an app's dynbss
223 section, and instead use a dynamic relocation to point into the
225 #define ELIMINATE_COPY_RELOCS 1
227 /* Copy the extra info we tack onto an elf_link_hash_entry. */
230 ppc_elf_copy_indirect_symbol (struct elf_backend_data
*bed
,
231 struct elf_link_hash_entry
*dir
,
232 struct elf_link_hash_entry
*ind
)
234 struct ppc_elf_link_hash_entry
*edir
, *eind
;
236 edir
= (struct ppc_elf_link_hash_entry
*) dir
;
237 eind
= (struct ppc_elf_link_hash_entry
*) ind
;
239 if (eind
->dyn_relocs
!= NULL
)
241 if (edir
->dyn_relocs
!= NULL
)
243 struct ppc_elf_dyn_relocs
**pp
;
244 struct ppc_elf_dyn_relocs
*p
;
246 if (ind
->root
.type
== bfd_link_hash_indirect
)
249 /* Add reloc counts against the weak sym to the strong sym
250 list. Merge any entries against the same section. */
251 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
253 struct ppc_elf_dyn_relocs
*q
;
255 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
256 if (q
->sec
== p
->sec
)
258 q
->pc_count
+= p
->pc_count
;
259 q
->count
+= p
->count
;
266 *pp
= edir
->dyn_relocs
;
269 edir
->dyn_relocs
= eind
->dyn_relocs
;
270 eind
->dyn_relocs
= NULL
;
273 edir
->tls_mask
|= eind
->tls_mask
;
275 if (ELIMINATE_COPY_RELOCS
276 && ind
->root
.type
!= bfd_link_hash_indirect
277 && (dir
->elf_link_hash_flags
& ELF_LINK_HASH_DYNAMIC_ADJUSTED
) != 0)
278 /* If called to transfer flags for a weakdef during processing
279 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
280 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
281 dir
->elf_link_hash_flags
|=
282 (ind
->elf_link_hash_flags
& (ELF_LINK_HASH_REF_DYNAMIC
283 | ELF_LINK_HASH_REF_REGULAR
284 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
));
286 _bfd_elf_link_hash_copy_indirect (bed
, dir
, ind
);
289 static reloc_howto_type
*ppc_elf_howto_table
[(int) R_PPC_max
];
291 static reloc_howto_type ppc_elf_howto_raw
[] = {
292 /* This reloc does nothing. */
293 HOWTO (R_PPC_NONE
, /* type */
295 2, /* size (0 = byte, 1 = short, 2 = long) */
297 FALSE
, /* pc_relative */
299 complain_overflow_bitfield
, /* complain_on_overflow */
300 bfd_elf_generic_reloc
, /* special_function */
301 "R_PPC_NONE", /* name */
302 FALSE
, /* partial_inplace */
305 FALSE
), /* pcrel_offset */
307 /* A standard 32 bit relocation. */
308 HOWTO (R_PPC_ADDR32
, /* type */
310 2, /* size (0 = byte, 1 = short, 2 = long) */
312 FALSE
, /* pc_relative */
314 complain_overflow_bitfield
, /* complain_on_overflow */
315 bfd_elf_generic_reloc
, /* special_function */
316 "R_PPC_ADDR32", /* name */
317 FALSE
, /* partial_inplace */
319 0xffffffff, /* dst_mask */
320 FALSE
), /* pcrel_offset */
322 /* An absolute 26 bit branch; the lower two bits must be zero.
323 FIXME: we don't check that, we just clear them. */
324 HOWTO (R_PPC_ADDR24
, /* type */
326 2, /* size (0 = byte, 1 = short, 2 = long) */
328 FALSE
, /* pc_relative */
330 complain_overflow_bitfield
, /* complain_on_overflow */
331 bfd_elf_generic_reloc
, /* special_function */
332 "R_PPC_ADDR24", /* name */
333 FALSE
, /* partial_inplace */
335 0x3fffffc, /* dst_mask */
336 FALSE
), /* pcrel_offset */
338 /* A standard 16 bit relocation. */
339 HOWTO (R_PPC_ADDR16
, /* type */
341 1, /* size (0 = byte, 1 = short, 2 = long) */
343 FALSE
, /* pc_relative */
345 complain_overflow_bitfield
, /* complain_on_overflow */
346 bfd_elf_generic_reloc
, /* special_function */
347 "R_PPC_ADDR16", /* name */
348 FALSE
, /* partial_inplace */
350 0xffff, /* dst_mask */
351 FALSE
), /* pcrel_offset */
353 /* A 16 bit relocation without overflow. */
354 HOWTO (R_PPC_ADDR16_LO
, /* type */
356 1, /* size (0 = byte, 1 = short, 2 = long) */
358 FALSE
, /* pc_relative */
360 complain_overflow_dont
,/* complain_on_overflow */
361 bfd_elf_generic_reloc
, /* special_function */
362 "R_PPC_ADDR16_LO", /* name */
363 FALSE
, /* partial_inplace */
365 0xffff, /* dst_mask */
366 FALSE
), /* pcrel_offset */
368 /* The high order 16 bits of an address. */
369 HOWTO (R_PPC_ADDR16_HI
, /* type */
371 1, /* size (0 = byte, 1 = short, 2 = long) */
373 FALSE
, /* pc_relative */
375 complain_overflow_dont
, /* complain_on_overflow */
376 bfd_elf_generic_reloc
, /* special_function */
377 "R_PPC_ADDR16_HI", /* name */
378 FALSE
, /* partial_inplace */
380 0xffff, /* dst_mask */
381 FALSE
), /* pcrel_offset */
383 /* The high order 16 bits of an address, plus 1 if the contents of
384 the low 16 bits, treated as a signed number, is negative. */
385 HOWTO (R_PPC_ADDR16_HA
, /* type */
387 1, /* size (0 = byte, 1 = short, 2 = long) */
389 FALSE
, /* pc_relative */
391 complain_overflow_dont
, /* complain_on_overflow */
392 ppc_elf_addr16_ha_reloc
, /* special_function */
393 "R_PPC_ADDR16_HA", /* name */
394 FALSE
, /* partial_inplace */
396 0xffff, /* dst_mask */
397 FALSE
), /* pcrel_offset */
399 /* An absolute 16 bit branch; the lower two bits must be zero.
400 FIXME: we don't check that, we just clear them. */
401 HOWTO (R_PPC_ADDR14
, /* type */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
405 FALSE
, /* pc_relative */
407 complain_overflow_bitfield
, /* complain_on_overflow */
408 bfd_elf_generic_reloc
, /* special_function */
409 "R_PPC_ADDR14", /* name */
410 FALSE
, /* partial_inplace */
412 0xfffc, /* dst_mask */
413 FALSE
), /* pcrel_offset */
415 /* An absolute 16 bit branch, for which bit 10 should be set to
416 indicate that the branch is expected to be taken. The lower two
417 bits must be zero. */
418 HOWTO (R_PPC_ADDR14_BRTAKEN
, /* type */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
422 FALSE
, /* pc_relative */
424 complain_overflow_bitfield
, /* complain_on_overflow */
425 bfd_elf_generic_reloc
, /* special_function */
426 "R_PPC_ADDR14_BRTAKEN",/* name */
427 FALSE
, /* partial_inplace */
429 0xfffc, /* dst_mask */
430 FALSE
), /* pcrel_offset */
432 /* An absolute 16 bit branch, for which bit 10 should be set to
433 indicate that the branch is not expected to be taken. The lower
434 two bits must be zero. */
435 HOWTO (R_PPC_ADDR14_BRNTAKEN
, /* type */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
439 FALSE
, /* pc_relative */
441 complain_overflow_bitfield
, /* complain_on_overflow */
442 bfd_elf_generic_reloc
, /* special_function */
443 "R_PPC_ADDR14_BRNTAKEN",/* name */
444 FALSE
, /* partial_inplace */
446 0xfffc, /* dst_mask */
447 FALSE
), /* pcrel_offset */
449 /* A relative 26 bit branch; the lower two bits must be zero. */
450 HOWTO (R_PPC_REL24
, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 TRUE
, /* pc_relative */
456 complain_overflow_signed
, /* complain_on_overflow */
457 bfd_elf_generic_reloc
, /* special_function */
458 "R_PPC_REL24", /* name */
459 FALSE
, /* partial_inplace */
461 0x3fffffc, /* dst_mask */
462 TRUE
), /* pcrel_offset */
464 /* A relative 16 bit branch; the lower two bits must be zero. */
465 HOWTO (R_PPC_REL14
, /* type */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
469 TRUE
, /* pc_relative */
471 complain_overflow_signed
, /* complain_on_overflow */
472 bfd_elf_generic_reloc
, /* special_function */
473 "R_PPC_REL14", /* name */
474 FALSE
, /* partial_inplace */
476 0xfffc, /* dst_mask */
477 TRUE
), /* pcrel_offset */
479 /* A relative 16 bit branch. Bit 10 should be set to indicate that
480 the branch is expected to be taken. The lower two bits must be
482 HOWTO (R_PPC_REL14_BRTAKEN
, /* type */
484 2, /* size (0 = byte, 1 = short, 2 = long) */
486 TRUE
, /* pc_relative */
488 complain_overflow_signed
, /* complain_on_overflow */
489 bfd_elf_generic_reloc
, /* special_function */
490 "R_PPC_REL14_BRTAKEN", /* name */
491 FALSE
, /* partial_inplace */
493 0xfffc, /* dst_mask */
494 TRUE
), /* pcrel_offset */
496 /* A relative 16 bit branch. Bit 10 should be set to indicate that
497 the branch is not expected to be taken. The lower two bits must
499 HOWTO (R_PPC_REL14_BRNTAKEN
, /* type */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
503 TRUE
, /* pc_relative */
505 complain_overflow_signed
, /* complain_on_overflow */
506 bfd_elf_generic_reloc
, /* special_function */
507 "R_PPC_REL14_BRNTAKEN",/* name */
508 FALSE
, /* partial_inplace */
510 0xfffc, /* dst_mask */
511 TRUE
), /* pcrel_offset */
513 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
515 HOWTO (R_PPC_GOT16
, /* type */
517 1, /* size (0 = byte, 1 = short, 2 = long) */
519 FALSE
, /* pc_relative */
521 complain_overflow_signed
, /* complain_on_overflow */
522 bfd_elf_generic_reloc
, /* special_function */
523 "R_PPC_GOT16", /* name */
524 FALSE
, /* partial_inplace */
526 0xffff, /* dst_mask */
527 FALSE
), /* pcrel_offset */
529 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
531 HOWTO (R_PPC_GOT16_LO
, /* type */
533 1, /* size (0 = byte, 1 = short, 2 = long) */
535 FALSE
, /* pc_relative */
537 complain_overflow_dont
, /* complain_on_overflow */
538 bfd_elf_generic_reloc
, /* special_function */
539 "R_PPC_GOT16_LO", /* name */
540 FALSE
, /* partial_inplace */
542 0xffff, /* dst_mask */
543 FALSE
), /* pcrel_offset */
545 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
547 HOWTO (R_PPC_GOT16_HI
, /* type */
549 1, /* size (0 = byte, 1 = short, 2 = long) */
551 FALSE
, /* pc_relative */
553 complain_overflow_bitfield
, /* complain_on_overflow */
554 bfd_elf_generic_reloc
, /* special_function */
555 "R_PPC_GOT16_HI", /* name */
556 FALSE
, /* partial_inplace */
558 0xffff, /* dst_mask */
559 FALSE
), /* pcrel_offset */
561 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
563 HOWTO (R_PPC_GOT16_HA
, /* type */
565 1, /* size (0 = byte, 1 = short, 2 = long) */
567 FALSE
, /* pc_relative */
569 complain_overflow_bitfield
, /* complain_on_overflow */
570 ppc_elf_addr16_ha_reloc
, /* special_function */
571 "R_PPC_GOT16_HA", /* name */
572 FALSE
, /* partial_inplace */
574 0xffff, /* dst_mask */
575 FALSE
), /* pcrel_offset */
577 /* Like R_PPC_REL24, but referring to the procedure linkage table
578 entry for the symbol. */
579 HOWTO (R_PPC_PLTREL24
, /* type */
581 2, /* size (0 = byte, 1 = short, 2 = long) */
583 TRUE
, /* pc_relative */
585 complain_overflow_signed
, /* complain_on_overflow */
586 bfd_elf_generic_reloc
, /* special_function */
587 "R_PPC_PLTREL24", /* name */
588 FALSE
, /* partial_inplace */
590 0x3fffffc, /* dst_mask */
591 TRUE
), /* pcrel_offset */
593 /* This is used only by the dynamic linker. The symbol should exist
594 both in the object being run and in some shared library. The
595 dynamic linker copies the data addressed by the symbol from the
596 shared library into the object, because the object being
597 run has to have the data at some particular address. */
598 HOWTO (R_PPC_COPY
, /* type */
600 2, /* size (0 = byte, 1 = short, 2 = long) */
602 FALSE
, /* pc_relative */
604 complain_overflow_bitfield
, /* complain_on_overflow */
605 bfd_elf_generic_reloc
, /* special_function */
606 "R_PPC_COPY", /* name */
607 FALSE
, /* partial_inplace */
610 FALSE
), /* pcrel_offset */
612 /* Like R_PPC_ADDR32, but used when setting global offset table
614 HOWTO (R_PPC_GLOB_DAT
, /* type */
616 2, /* size (0 = byte, 1 = short, 2 = long) */
618 FALSE
, /* pc_relative */
620 complain_overflow_bitfield
, /* complain_on_overflow */
621 bfd_elf_generic_reloc
, /* special_function */
622 "R_PPC_GLOB_DAT", /* name */
623 FALSE
, /* partial_inplace */
625 0xffffffff, /* dst_mask */
626 FALSE
), /* pcrel_offset */
628 /* Marks a procedure linkage table entry for a symbol. */
629 HOWTO (R_PPC_JMP_SLOT
, /* type */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
633 FALSE
, /* pc_relative */
635 complain_overflow_bitfield
, /* complain_on_overflow */
636 bfd_elf_generic_reloc
, /* special_function */
637 "R_PPC_JMP_SLOT", /* name */
638 FALSE
, /* partial_inplace */
641 FALSE
), /* pcrel_offset */
643 /* Used only by the dynamic linker. When the object is run, this
644 longword is set to the load address of the object, plus the
646 HOWTO (R_PPC_RELATIVE
, /* type */
648 2, /* size (0 = byte, 1 = short, 2 = long) */
650 FALSE
, /* pc_relative */
652 complain_overflow_bitfield
, /* complain_on_overflow */
653 bfd_elf_generic_reloc
, /* special_function */
654 "R_PPC_RELATIVE", /* name */
655 FALSE
, /* partial_inplace */
657 0xffffffff, /* dst_mask */
658 FALSE
), /* pcrel_offset */
660 /* Like R_PPC_REL24, but uses the value of the symbol within the
661 object rather than the final value. Normally used for
662 _GLOBAL_OFFSET_TABLE_. */
663 HOWTO (R_PPC_LOCAL24PC
, /* type */
665 2, /* size (0 = byte, 1 = short, 2 = long) */
667 TRUE
, /* pc_relative */
669 complain_overflow_signed
, /* complain_on_overflow */
670 bfd_elf_generic_reloc
, /* special_function */
671 "R_PPC_LOCAL24PC", /* name */
672 FALSE
, /* partial_inplace */
674 0x3fffffc, /* dst_mask */
675 TRUE
), /* pcrel_offset */
677 /* Like R_PPC_ADDR32, but may be unaligned. */
678 HOWTO (R_PPC_UADDR32
, /* type */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
682 FALSE
, /* pc_relative */
684 complain_overflow_bitfield
, /* complain_on_overflow */
685 bfd_elf_generic_reloc
, /* special_function */
686 "R_PPC_UADDR32", /* name */
687 FALSE
, /* partial_inplace */
689 0xffffffff, /* dst_mask */
690 FALSE
), /* pcrel_offset */
692 /* Like R_PPC_ADDR16, but may be unaligned. */
693 HOWTO (R_PPC_UADDR16
, /* type */
695 1, /* size (0 = byte, 1 = short, 2 = long) */
697 FALSE
, /* pc_relative */
699 complain_overflow_bitfield
, /* complain_on_overflow */
700 bfd_elf_generic_reloc
, /* special_function */
701 "R_PPC_UADDR16", /* name */
702 FALSE
, /* partial_inplace */
704 0xffff, /* dst_mask */
705 FALSE
), /* pcrel_offset */
707 /* 32-bit PC relative */
708 HOWTO (R_PPC_REL32
, /* type */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
712 TRUE
, /* pc_relative */
714 complain_overflow_bitfield
, /* complain_on_overflow */
715 bfd_elf_generic_reloc
, /* special_function */
716 "R_PPC_REL32", /* name */
717 FALSE
, /* partial_inplace */
719 0xffffffff, /* dst_mask */
720 TRUE
), /* pcrel_offset */
722 /* 32-bit relocation to the symbol's procedure linkage table.
723 FIXME: not supported. */
724 HOWTO (R_PPC_PLT32
, /* type */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
728 FALSE
, /* pc_relative */
730 complain_overflow_bitfield
, /* complain_on_overflow */
731 bfd_elf_generic_reloc
, /* special_function */
732 "R_PPC_PLT32", /* name */
733 FALSE
, /* partial_inplace */
736 FALSE
), /* pcrel_offset */
738 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
739 FIXME: not supported. */
740 HOWTO (R_PPC_PLTREL32
, /* type */
742 2, /* size (0 = byte, 1 = short, 2 = long) */
744 TRUE
, /* pc_relative */
746 complain_overflow_bitfield
, /* complain_on_overflow */
747 bfd_elf_generic_reloc
, /* special_function */
748 "R_PPC_PLTREL32", /* name */
749 FALSE
, /* partial_inplace */
752 TRUE
), /* pcrel_offset */
754 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
756 HOWTO (R_PPC_PLT16_LO
, /* type */
758 1, /* size (0 = byte, 1 = short, 2 = long) */
760 FALSE
, /* pc_relative */
762 complain_overflow_dont
, /* complain_on_overflow */
763 bfd_elf_generic_reloc
, /* special_function */
764 "R_PPC_PLT16_LO", /* name */
765 FALSE
, /* partial_inplace */
767 0xffff, /* dst_mask */
768 FALSE
), /* pcrel_offset */
770 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
772 HOWTO (R_PPC_PLT16_HI
, /* type */
774 1, /* size (0 = byte, 1 = short, 2 = long) */
776 FALSE
, /* pc_relative */
778 complain_overflow_bitfield
, /* complain_on_overflow */
779 bfd_elf_generic_reloc
, /* special_function */
780 "R_PPC_PLT16_HI", /* name */
781 FALSE
, /* partial_inplace */
783 0xffff, /* dst_mask */
784 FALSE
), /* pcrel_offset */
786 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
788 HOWTO (R_PPC_PLT16_HA
, /* type */
790 1, /* size (0 = byte, 1 = short, 2 = long) */
792 FALSE
, /* pc_relative */
794 complain_overflow_bitfield
, /* complain_on_overflow */
795 ppc_elf_addr16_ha_reloc
, /* special_function */
796 "R_PPC_PLT16_HA", /* name */
797 FALSE
, /* partial_inplace */
799 0xffff, /* dst_mask */
800 FALSE
), /* pcrel_offset */
802 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
804 HOWTO (R_PPC_SDAREL16
, /* type */
806 1, /* size (0 = byte, 1 = short, 2 = long) */
808 FALSE
, /* pc_relative */
810 complain_overflow_signed
, /* complain_on_overflow */
811 bfd_elf_generic_reloc
, /* special_function */
812 "R_PPC_SDAREL16", /* name */
813 FALSE
, /* partial_inplace */
815 0xffff, /* dst_mask */
816 FALSE
), /* pcrel_offset */
818 /* 16-bit section relative relocation. */
819 HOWTO (R_PPC_SECTOFF
, /* type */
821 1, /* size (0 = byte, 1 = short, 2 = long) */
823 FALSE
, /* pc_relative */
825 complain_overflow_bitfield
, /* complain_on_overflow */
826 bfd_elf_generic_reloc
, /* special_function */
827 "R_PPC_SECTOFF", /* name */
828 FALSE
, /* partial_inplace */
830 0xffff, /* dst_mask */
831 FALSE
), /* pcrel_offset */
833 /* 16-bit lower half section relative relocation. */
834 HOWTO (R_PPC_SECTOFF_LO
, /* type */
836 1, /* size (0 = byte, 1 = short, 2 = long) */
838 FALSE
, /* pc_relative */
840 complain_overflow_dont
, /* complain_on_overflow */
841 bfd_elf_generic_reloc
, /* special_function */
842 "R_PPC_SECTOFF_LO", /* name */
843 FALSE
, /* partial_inplace */
845 0xffff, /* dst_mask */
846 FALSE
), /* pcrel_offset */
848 /* 16-bit upper half section relative relocation. */
849 HOWTO (R_PPC_SECTOFF_HI
, /* type */
851 1, /* size (0 = byte, 1 = short, 2 = long) */
853 FALSE
, /* pc_relative */
855 complain_overflow_bitfield
, /* complain_on_overflow */
856 bfd_elf_generic_reloc
, /* special_function */
857 "R_PPC_SECTOFF_HI", /* name */
858 FALSE
, /* partial_inplace */
860 0xffff, /* dst_mask */
861 FALSE
), /* pcrel_offset */
863 /* 16-bit upper half adjusted section relative relocation. */
864 HOWTO (R_PPC_SECTOFF_HA
, /* type */
866 1, /* size (0 = byte, 1 = short, 2 = long) */
868 FALSE
, /* pc_relative */
870 complain_overflow_bitfield
, /* complain_on_overflow */
871 ppc_elf_addr16_ha_reloc
, /* special_function */
872 "R_PPC_SECTOFF_HA", /* name */
873 FALSE
, /* partial_inplace */
875 0xffff, /* dst_mask */
876 FALSE
), /* pcrel_offset */
878 /* Marker reloc for TLS. */
881 2, /* size (0 = byte, 1 = short, 2 = long) */
883 FALSE
, /* pc_relative */
885 complain_overflow_dont
, /* complain_on_overflow */
886 bfd_elf_generic_reloc
, /* special_function */
887 "R_PPC_TLS", /* name */
888 FALSE
, /* partial_inplace */
891 FALSE
), /* pcrel_offset */
893 /* Computes the load module index of the load module that contains the
894 definition of its TLS sym. */
895 HOWTO (R_PPC_DTPMOD32
,
897 2, /* size (0 = byte, 1 = short, 2 = long) */
899 FALSE
, /* pc_relative */
901 complain_overflow_dont
, /* complain_on_overflow */
902 ppc_elf_unhandled_reloc
, /* special_function */
903 "R_PPC_DTPMOD32", /* name */
904 FALSE
, /* partial_inplace */
906 0xffffffff, /* dst_mask */
907 FALSE
), /* pcrel_offset */
909 /* Computes a dtv-relative displacement, the difference between the value
910 of sym+add and the base address of the thread-local storage block that
911 contains the definition of sym, minus 0x8000. */
912 HOWTO (R_PPC_DTPREL32
,
914 2, /* size (0 = byte, 1 = short, 2 = long) */
916 FALSE
, /* pc_relative */
918 complain_overflow_dont
, /* complain_on_overflow */
919 ppc_elf_unhandled_reloc
, /* special_function */
920 "R_PPC_DTPREL32", /* name */
921 FALSE
, /* partial_inplace */
923 0xffffffff, /* dst_mask */
924 FALSE
), /* pcrel_offset */
926 /* A 16 bit dtprel reloc. */
927 HOWTO (R_PPC_DTPREL16
,
929 1, /* size (0 = byte, 1 = short, 2 = long) */
931 FALSE
, /* pc_relative */
933 complain_overflow_signed
, /* complain_on_overflow */
934 ppc_elf_unhandled_reloc
, /* special_function */
935 "R_PPC_DTPREL16", /* name */
936 FALSE
, /* partial_inplace */
938 0xffff, /* dst_mask */
939 FALSE
), /* pcrel_offset */
941 /* Like DTPREL16, but no overflow. */
942 HOWTO (R_PPC_DTPREL16_LO
,
944 1, /* size (0 = byte, 1 = short, 2 = long) */
946 FALSE
, /* pc_relative */
948 complain_overflow_dont
, /* complain_on_overflow */
949 ppc_elf_unhandled_reloc
, /* special_function */
950 "R_PPC_DTPREL16_LO", /* name */
951 FALSE
, /* partial_inplace */
953 0xffff, /* dst_mask */
954 FALSE
), /* pcrel_offset */
956 /* Like DTPREL16_LO, but next higher group of 16 bits. */
957 HOWTO (R_PPC_DTPREL16_HI
,
959 1, /* size (0 = byte, 1 = short, 2 = long) */
961 FALSE
, /* pc_relative */
963 complain_overflow_dont
, /* complain_on_overflow */
964 ppc_elf_unhandled_reloc
, /* special_function */
965 "R_PPC_DTPREL16_HI", /* name */
966 FALSE
, /* partial_inplace */
968 0xffff, /* dst_mask */
969 FALSE
), /* pcrel_offset */
971 /* Like DTPREL16_HI, but adjust for low 16 bits. */
972 HOWTO (R_PPC_DTPREL16_HA
,
974 1, /* size (0 = byte, 1 = short, 2 = long) */
976 FALSE
, /* pc_relative */
978 complain_overflow_dont
, /* complain_on_overflow */
979 ppc_elf_unhandled_reloc
, /* special_function */
980 "R_PPC_DTPREL16_HA", /* name */
981 FALSE
, /* partial_inplace */
983 0xffff, /* dst_mask */
984 FALSE
), /* pcrel_offset */
986 /* Computes a tp-relative displacement, the difference between the value of
987 sym+add and the value of the thread pointer (r13). */
988 HOWTO (R_PPC_TPREL32
,
990 2, /* size (0 = byte, 1 = short, 2 = long) */
992 FALSE
, /* pc_relative */
994 complain_overflow_dont
, /* complain_on_overflow */
995 ppc_elf_unhandled_reloc
, /* special_function */
996 "R_PPC_TPREL32", /* name */
997 FALSE
, /* partial_inplace */
999 0xffffffff, /* dst_mask */
1000 FALSE
), /* pcrel_offset */
1002 /* A 16 bit tprel reloc. */
1003 HOWTO (R_PPC_TPREL16
,
1005 1, /* size (0 = byte, 1 = short, 2 = long) */
1007 FALSE
, /* pc_relative */
1009 complain_overflow_signed
, /* complain_on_overflow */
1010 ppc_elf_unhandled_reloc
, /* special_function */
1011 "R_PPC_TPREL16", /* name */
1012 FALSE
, /* partial_inplace */
1014 0xffff, /* dst_mask */
1015 FALSE
), /* pcrel_offset */
1017 /* Like TPREL16, but no overflow. */
1018 HOWTO (R_PPC_TPREL16_LO
,
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1022 FALSE
, /* pc_relative */
1024 complain_overflow_dont
, /* complain_on_overflow */
1025 ppc_elf_unhandled_reloc
, /* special_function */
1026 "R_PPC_TPREL16_LO", /* name */
1027 FALSE
, /* partial_inplace */
1029 0xffff, /* dst_mask */
1030 FALSE
), /* pcrel_offset */
1032 /* Like TPREL16_LO, but next higher group of 16 bits. */
1033 HOWTO (R_PPC_TPREL16_HI
,
1034 16, /* rightshift */
1035 1, /* size (0 = byte, 1 = short, 2 = long) */
1037 FALSE
, /* pc_relative */
1039 complain_overflow_dont
, /* complain_on_overflow */
1040 ppc_elf_unhandled_reloc
, /* special_function */
1041 "R_PPC_TPREL16_HI", /* name */
1042 FALSE
, /* partial_inplace */
1044 0xffff, /* dst_mask */
1045 FALSE
), /* pcrel_offset */
1047 /* Like TPREL16_HI, but adjust for low 16 bits. */
1048 HOWTO (R_PPC_TPREL16_HA
,
1049 16, /* rightshift */
1050 1, /* size (0 = byte, 1 = short, 2 = long) */
1052 FALSE
, /* pc_relative */
1054 complain_overflow_dont
, /* complain_on_overflow */
1055 ppc_elf_unhandled_reloc
, /* special_function */
1056 "R_PPC_TPREL16_HA", /* name */
1057 FALSE
, /* partial_inplace */
1059 0xffff, /* dst_mask */
1060 FALSE
), /* pcrel_offset */
1062 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1063 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1064 to the first entry. */
1065 HOWTO (R_PPC_GOT_TLSGD16
,
1067 1, /* size (0 = byte, 1 = short, 2 = long) */
1069 FALSE
, /* pc_relative */
1071 complain_overflow_signed
, /* complain_on_overflow */
1072 ppc_elf_unhandled_reloc
, /* special_function */
1073 "R_PPC_GOT_TLSGD16", /* name */
1074 FALSE
, /* partial_inplace */
1076 0xffff, /* dst_mask */
1077 FALSE
), /* pcrel_offset */
1079 /* Like GOT_TLSGD16, but no overflow. */
1080 HOWTO (R_PPC_GOT_TLSGD16_LO
,
1082 1, /* size (0 = byte, 1 = short, 2 = long) */
1084 FALSE
, /* pc_relative */
1086 complain_overflow_dont
, /* complain_on_overflow */
1087 ppc_elf_unhandled_reloc
, /* special_function */
1088 "R_PPC_GOT_TLSGD16_LO", /* name */
1089 FALSE
, /* partial_inplace */
1091 0xffff, /* dst_mask */
1092 FALSE
), /* pcrel_offset */
1094 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1095 HOWTO (R_PPC_GOT_TLSGD16_HI
,
1096 16, /* rightshift */
1097 1, /* size (0 = byte, 1 = short, 2 = long) */
1099 FALSE
, /* pc_relative */
1101 complain_overflow_dont
, /* complain_on_overflow */
1102 ppc_elf_unhandled_reloc
, /* special_function */
1103 "R_PPC_GOT_TLSGD16_HI", /* name */
1104 FALSE
, /* partial_inplace */
1106 0xffff, /* dst_mask */
1107 FALSE
), /* pcrel_offset */
1109 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1110 HOWTO (R_PPC_GOT_TLSGD16_HA
,
1111 16, /* rightshift */
1112 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 FALSE
, /* pc_relative */
1116 complain_overflow_dont
, /* complain_on_overflow */
1117 ppc_elf_unhandled_reloc
, /* special_function */
1118 "R_PPC_GOT_TLSGD16_HA", /* name */
1119 FALSE
, /* partial_inplace */
1121 0xffff, /* dst_mask */
1122 FALSE
), /* pcrel_offset */
1124 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1125 with values (sym+add)@dtpmod and zero, and computes the offset to the
1127 HOWTO (R_PPC_GOT_TLSLD16
,
1129 1, /* size (0 = byte, 1 = short, 2 = long) */
1131 FALSE
, /* pc_relative */
1133 complain_overflow_signed
, /* complain_on_overflow */
1134 ppc_elf_unhandled_reloc
, /* special_function */
1135 "R_PPC_GOT_TLSLD16", /* name */
1136 FALSE
, /* partial_inplace */
1138 0xffff, /* dst_mask */
1139 FALSE
), /* pcrel_offset */
1141 /* Like GOT_TLSLD16, but no overflow. */
1142 HOWTO (R_PPC_GOT_TLSLD16_LO
,
1144 1, /* size (0 = byte, 1 = short, 2 = long) */
1146 FALSE
, /* pc_relative */
1148 complain_overflow_dont
, /* complain_on_overflow */
1149 ppc_elf_unhandled_reloc
, /* special_function */
1150 "R_PPC_GOT_TLSLD16_LO", /* name */
1151 FALSE
, /* partial_inplace */
1153 0xffff, /* dst_mask */
1154 FALSE
), /* pcrel_offset */
1156 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1157 HOWTO (R_PPC_GOT_TLSLD16_HI
,
1158 16, /* rightshift */
1159 1, /* size (0 = byte, 1 = short, 2 = long) */
1161 FALSE
, /* pc_relative */
1163 complain_overflow_dont
, /* complain_on_overflow */
1164 ppc_elf_unhandled_reloc
, /* special_function */
1165 "R_PPC_GOT_TLSLD16_HI", /* name */
1166 FALSE
, /* partial_inplace */
1168 0xffff, /* dst_mask */
1169 FALSE
), /* pcrel_offset */
1171 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1172 HOWTO (R_PPC_GOT_TLSLD16_HA
,
1173 16, /* rightshift */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1176 FALSE
, /* pc_relative */
1178 complain_overflow_dont
, /* complain_on_overflow */
1179 ppc_elf_unhandled_reloc
, /* special_function */
1180 "R_PPC_GOT_TLSLD16_HA", /* name */
1181 FALSE
, /* partial_inplace */
1183 0xffff, /* dst_mask */
1184 FALSE
), /* pcrel_offset */
1186 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1187 the offset to the entry. */
1188 HOWTO (R_PPC_GOT_DTPREL16
,
1190 1, /* size (0 = byte, 1 = short, 2 = long) */
1192 FALSE
, /* pc_relative */
1194 complain_overflow_signed
, /* complain_on_overflow */
1195 ppc_elf_unhandled_reloc
, /* special_function */
1196 "R_PPC_GOT_DTPREL16", /* name */
1197 FALSE
, /* partial_inplace */
1199 0xffff, /* dst_mask */
1200 FALSE
), /* pcrel_offset */
1202 /* Like GOT_DTPREL16, but no overflow. */
1203 HOWTO (R_PPC_GOT_DTPREL16_LO
,
1205 1, /* size (0 = byte, 1 = short, 2 = long) */
1207 FALSE
, /* pc_relative */
1209 complain_overflow_dont
, /* complain_on_overflow */
1210 ppc_elf_unhandled_reloc
, /* special_function */
1211 "R_PPC_GOT_DTPREL16_LO", /* name */
1212 FALSE
, /* partial_inplace */
1214 0xffff, /* dst_mask */
1215 FALSE
), /* pcrel_offset */
1217 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1218 HOWTO (R_PPC_GOT_DTPREL16_HI
,
1219 16, /* rightshift */
1220 1, /* size (0 = byte, 1 = short, 2 = long) */
1222 FALSE
, /* pc_relative */
1224 complain_overflow_dont
, /* complain_on_overflow */
1225 ppc_elf_unhandled_reloc
, /* special_function */
1226 "R_PPC_GOT_DTPREL16_HI", /* name */
1227 FALSE
, /* partial_inplace */
1229 0xffff, /* dst_mask */
1230 FALSE
), /* pcrel_offset */
1232 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1233 HOWTO (R_PPC_GOT_DTPREL16_HA
,
1234 16, /* rightshift */
1235 1, /* size (0 = byte, 1 = short, 2 = long) */
1237 FALSE
, /* pc_relative */
1239 complain_overflow_dont
, /* complain_on_overflow */
1240 ppc_elf_unhandled_reloc
, /* special_function */
1241 "R_PPC_GOT_DTPREL16_HA", /* name */
1242 FALSE
, /* partial_inplace */
1244 0xffff, /* dst_mask */
1245 FALSE
), /* pcrel_offset */
1247 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1248 offset to the entry. */
1249 HOWTO (R_PPC_GOT_TPREL16
,
1251 1, /* size (0 = byte, 1 = short, 2 = long) */
1253 FALSE
, /* pc_relative */
1255 complain_overflow_signed
, /* complain_on_overflow */
1256 ppc_elf_unhandled_reloc
, /* special_function */
1257 "R_PPC_GOT_TPREL16", /* name */
1258 FALSE
, /* partial_inplace */
1260 0xffff, /* dst_mask */
1261 FALSE
), /* pcrel_offset */
1263 /* Like GOT_TPREL16, but no overflow. */
1264 HOWTO (R_PPC_GOT_TPREL16_LO
,
1266 1, /* size (0 = byte, 1 = short, 2 = long) */
1268 FALSE
, /* pc_relative */
1270 complain_overflow_dont
, /* complain_on_overflow */
1271 ppc_elf_unhandled_reloc
, /* special_function */
1272 "R_PPC_GOT_TPREL16_LO", /* name */
1273 FALSE
, /* partial_inplace */
1275 0xffff, /* dst_mask */
1276 FALSE
), /* pcrel_offset */
1278 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1279 HOWTO (R_PPC_GOT_TPREL16_HI
,
1280 16, /* rightshift */
1281 1, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE
, /* pc_relative */
1285 complain_overflow_dont
, /* complain_on_overflow */
1286 ppc_elf_unhandled_reloc
, /* special_function */
1287 "R_PPC_GOT_TPREL16_HI", /* name */
1288 FALSE
, /* partial_inplace */
1290 0xffff, /* dst_mask */
1291 FALSE
), /* pcrel_offset */
1293 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1294 HOWTO (R_PPC_GOT_TPREL16_HA
,
1295 16, /* rightshift */
1296 1, /* size (0 = byte, 1 = short, 2 = long) */
1298 FALSE
, /* pc_relative */
1300 complain_overflow_dont
, /* complain_on_overflow */
1301 ppc_elf_unhandled_reloc
, /* special_function */
1302 "R_PPC_GOT_TPREL16_HA", /* name */
1303 FALSE
, /* partial_inplace */
1305 0xffff, /* dst_mask */
1306 FALSE
), /* pcrel_offset */
1308 /* The remaining relocs are from the Embedded ELF ABI, and are not
1309 in the SVR4 ELF ABI. */
1311 /* 32 bit value resulting from the addend minus the symbol. */
1312 HOWTO (R_PPC_EMB_NADDR32
, /* type */
1314 2, /* size (0 = byte, 1 = short, 2 = long) */
1316 FALSE
, /* pc_relative */
1318 complain_overflow_bitfield
, /* complain_on_overflow */
1319 bfd_elf_generic_reloc
, /* special_function */
1320 "R_PPC_EMB_NADDR32", /* name */
1321 FALSE
, /* partial_inplace */
1323 0xffffffff, /* dst_mask */
1324 FALSE
), /* pcrel_offset */
1326 /* 16 bit value resulting from the addend minus the symbol. */
1327 HOWTO (R_PPC_EMB_NADDR16
, /* type */
1329 1, /* size (0 = byte, 1 = short, 2 = long) */
1331 FALSE
, /* pc_relative */
1333 complain_overflow_bitfield
, /* complain_on_overflow */
1334 bfd_elf_generic_reloc
, /* special_function */
1335 "R_PPC_EMB_NADDR16", /* name */
1336 FALSE
, /* partial_inplace */
1338 0xffff, /* dst_mask */
1339 FALSE
), /* pcrel_offset */
1341 /* 16 bit value resulting from the addend minus the symbol. */
1342 HOWTO (R_PPC_EMB_NADDR16_LO
, /* type */
1344 1, /* size (0 = byte, 1 = short, 2 = long) */
1346 FALSE
, /* pc_relative */
1348 complain_overflow_dont
,/* complain_on_overflow */
1349 bfd_elf_generic_reloc
, /* special_function */
1350 "R_PPC_EMB_ADDR16_LO", /* name */
1351 FALSE
, /* partial_inplace */
1353 0xffff, /* dst_mask */
1354 FALSE
), /* pcrel_offset */
1356 /* The high order 16 bits of the addend minus the symbol. */
1357 HOWTO (R_PPC_EMB_NADDR16_HI
, /* type */
1358 16, /* rightshift */
1359 1, /* size (0 = byte, 1 = short, 2 = long) */
1361 FALSE
, /* pc_relative */
1363 complain_overflow_dont
, /* complain_on_overflow */
1364 bfd_elf_generic_reloc
, /* special_function */
1365 "R_PPC_EMB_NADDR16_HI", /* name */
1366 FALSE
, /* partial_inplace */
1368 0xffff, /* dst_mask */
1369 FALSE
), /* pcrel_offset */
1371 /* The high order 16 bits of the result of the addend minus the address,
1372 plus 1 if the contents of the low 16 bits, treated as a signed number,
1374 HOWTO (R_PPC_EMB_NADDR16_HA
, /* type */
1375 16, /* rightshift */
1376 1, /* size (0 = byte, 1 = short, 2 = long) */
1378 FALSE
, /* pc_relative */
1380 complain_overflow_dont
, /* complain_on_overflow */
1381 ppc_elf_addr16_ha_reloc
, /* special_function */
1382 "R_PPC_EMB_NADDR16_HA", /* name */
1383 FALSE
, /* partial_inplace */
1385 0xffff, /* dst_mask */
1386 FALSE
), /* pcrel_offset */
1388 /* 16 bit value resulting from allocating a 4 byte word to hold an
1389 address in the .sdata section, and returning the offset from
1390 _SDA_BASE_ for that relocation. */
1391 HOWTO (R_PPC_EMB_SDAI16
, /* type */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 FALSE
, /* pc_relative */
1397 complain_overflow_bitfield
, /* complain_on_overflow */
1398 bfd_elf_generic_reloc
, /* special_function */
1399 "R_PPC_EMB_SDAI16", /* name */
1400 FALSE
, /* partial_inplace */
1402 0xffff, /* dst_mask */
1403 FALSE
), /* pcrel_offset */
1405 /* 16 bit value resulting from allocating a 4 byte word to hold an
1406 address in the .sdata2 section, and returning the offset from
1407 _SDA2_BASE_ for that relocation. */
1408 HOWTO (R_PPC_EMB_SDA2I16
, /* type */
1410 1, /* size (0 = byte, 1 = short, 2 = long) */
1412 FALSE
, /* pc_relative */
1414 complain_overflow_bitfield
, /* complain_on_overflow */
1415 bfd_elf_generic_reloc
, /* special_function */
1416 "R_PPC_EMB_SDA2I16", /* name */
1417 FALSE
, /* partial_inplace */
1419 0xffff, /* dst_mask */
1420 FALSE
), /* pcrel_offset */
1422 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1423 small data items. */
1424 HOWTO (R_PPC_EMB_SDA2REL
, /* type */
1426 1, /* size (0 = byte, 1 = short, 2 = long) */
1428 FALSE
, /* pc_relative */
1430 complain_overflow_signed
, /* complain_on_overflow */
1431 bfd_elf_generic_reloc
, /* special_function */
1432 "R_PPC_EMB_SDA2REL", /* name */
1433 FALSE
, /* partial_inplace */
1435 0xffff, /* dst_mask */
1436 FALSE
), /* pcrel_offset */
1438 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1439 signed offset from the appropriate base, and filling in the register
1440 field with the appropriate register (0, 2, or 13). */
1441 HOWTO (R_PPC_EMB_SDA21
, /* type */
1443 2, /* size (0 = byte, 1 = short, 2 = long) */
1445 FALSE
, /* pc_relative */
1447 complain_overflow_signed
, /* complain_on_overflow */
1448 bfd_elf_generic_reloc
, /* special_function */
1449 "R_PPC_EMB_SDA21", /* name */
1450 FALSE
, /* partial_inplace */
1452 0xffff, /* dst_mask */
1453 FALSE
), /* pcrel_offset */
1455 /* Relocation not handled: R_PPC_EMB_MRKREF */
1456 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1457 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1458 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1459 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1460 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1462 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1463 in the 16 bit signed offset from the appropriate base, and filling in the
1464 register field with the appropriate register (0, 2, or 13). */
1465 HOWTO (R_PPC_EMB_RELSDA
, /* type */
1467 1, /* size (0 = byte, 1 = short, 2 = long) */
1469 TRUE
, /* pc_relative */
1471 complain_overflow_signed
, /* complain_on_overflow */
1472 bfd_elf_generic_reloc
, /* special_function */
1473 "R_PPC_EMB_RELSDA", /* name */
1474 FALSE
, /* partial_inplace */
1476 0xffff, /* dst_mask */
1477 FALSE
), /* pcrel_offset */
1479 /* GNU extension to record C++ vtable hierarchy. */
1480 HOWTO (R_PPC_GNU_VTINHERIT
, /* type */
1482 0, /* size (0 = byte, 1 = short, 2 = long) */
1484 FALSE
, /* pc_relative */
1486 complain_overflow_dont
, /* complain_on_overflow */
1487 NULL
, /* special_function */
1488 "R_PPC_GNU_VTINHERIT", /* name */
1489 FALSE
, /* partial_inplace */
1492 FALSE
), /* pcrel_offset */
1494 /* GNU extension to record C++ vtable member usage. */
1495 HOWTO (R_PPC_GNU_VTENTRY
, /* type */
1497 0, /* size (0 = byte, 1 = short, 2 = long) */
1499 FALSE
, /* pc_relative */
1501 complain_overflow_dont
, /* complain_on_overflow */
1502 NULL
, /* special_function */
1503 "R_PPC_GNU_VTENTRY", /* name */
1504 FALSE
, /* partial_inplace */
1507 FALSE
), /* pcrel_offset */
1509 /* Phony reloc to handle AIX style TOC entries. */
1510 HOWTO (R_PPC_TOC16
, /* type */
1512 1, /* size (0 = byte, 1 = short, 2 = long) */
1514 FALSE
, /* pc_relative */
1516 complain_overflow_signed
, /* complain_on_overflow */
1517 bfd_elf_generic_reloc
, /* special_function */
1518 "R_PPC_TOC16", /* name */
1519 FALSE
, /* partial_inplace */
1521 0xffff, /* dst_mask */
1522 FALSE
), /* pcrel_offset */
1525 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1528 ppc_elf_howto_init (void)
1530 unsigned int i
, type
;
1533 i
< sizeof (ppc_elf_howto_raw
) / sizeof (ppc_elf_howto_raw
[0]);
1536 type
= ppc_elf_howto_raw
[i
].type
;
1537 if (type
>= (sizeof (ppc_elf_howto_table
)
1538 / sizeof (ppc_elf_howto_table
[0])))
1540 ppc_elf_howto_table
[type
] = &ppc_elf_howto_raw
[i
];
1544 /* This function handles relaxing for the PPC with option --mpc860c0[=<n>].
1546 The MPC860, revision C0 or earlier contains a bug in the die.
1547 If all of the following conditions are true, the next instruction
1548 to be executed *may* be treated as a no-op.
1549 1/ A forward branch is executed.
1550 2/ The branch is predicted as not taken.
1551 3/ The branch is taken.
1552 4/ The branch is located in the last 5 words of a page.
1553 (The EOP limit is 5 by default but may be specified as any value
1556 Our software solution is to detect these problematic branches in a
1557 linker pass and modify them as follows:
1558 1/ Unconditional branches - Since these are always predicted taken,
1559 there is no problem and no action is required.
1560 2/ Conditional backward branches - No problem, no action required.
1561 3/ Conditional forward branches - Ensure that the "inverse prediction
1562 bit" is set (ensure it is predicted taken).
1563 4/ Conditional register branches - Ensure that the "y bit" is set
1564 (ensure it is predicted taken). */
1566 /* Sort sections by address. */
1569 ppc_elf_sort_rela (const void *arg1
, const void *arg2
)
1571 const Elf_Internal_Rela
* const *rela1
= arg1
;
1572 const Elf_Internal_Rela
* const *rela2
= arg2
;
1574 /* Sort by offset. */
1575 return ((*rela1
)->r_offset
- (*rela2
)->r_offset
);
1579 ppc_elf_relax_section (bfd
*abfd
,
1581 struct bfd_link_info
*link_info
,
1584 #define PAGESIZE 0x1000
1586 bfd_byte
*contents
= NULL
;
1587 bfd_byte
*free_contents
= NULL
;
1588 Elf_Internal_Rela
*internal_relocs
= NULL
;
1589 Elf_Internal_Rela
*free_relocs
= NULL
;
1590 Elf_Internal_Rela
**rela_comb
= NULL
;
1591 int comb_curr
, comb_count
;
1593 /* We never have to do this more than once per input section. */
1596 /* If needed, initialize this section's cooked size. */
1597 if (isec
->_cooked_size
== 0)
1598 isec
->_cooked_size
= isec
->_raw_size
;
1600 /* We're only interested in text sections which overlap the
1601 troublesome area at the end of a page. */
1602 if (link_info
->mpc860c0
&& (isec
->flags
& SEC_CODE
) && isec
->_cooked_size
)
1604 bfd_vma dot
, end_page
, end_section
;
1605 bfd_boolean section_modified
;
1607 /* Get the section contents. */
1608 /* Get cached copy if it exists. */
1609 if (elf_section_data (isec
)->this_hdr
.contents
!= NULL
)
1610 contents
= elf_section_data (isec
)->this_hdr
.contents
;
1613 /* Go get them off disk. */
1614 contents
= bfd_malloc (isec
->_raw_size
);
1615 if (contents
== NULL
)
1617 free_contents
= contents
;
1619 if (! bfd_get_section_contents (abfd
, isec
, contents
,
1620 (file_ptr
) 0, isec
->_raw_size
))
1626 if (isec
->reloc_count
)
1631 /* Get a copy of the native relocations. */
1633 = _bfd_elf_link_read_relocs (abfd
, isec
, NULL
, NULL
,
1634 link_info
->keep_memory
);
1635 if (internal_relocs
== NULL
)
1637 if (! link_info
->keep_memory
)
1638 free_relocs
= internal_relocs
;
1640 /* Setup a faster access method for the reloc info we need. */
1641 amt
= isec
->reloc_count
;
1642 amt
*= sizeof (Elf_Internal_Rela
*);
1643 rela_comb
= bfd_malloc (amt
);
1644 if (rela_comb
== NULL
)
1646 for (n
= 0; n
< isec
->reloc_count
; ++n
)
1648 enum elf_ppc_reloc_type r_type
;
1650 r_type
= ELF32_R_TYPE (internal_relocs
[n
].r_info
);
1651 if (r_type
>= R_PPC_max
)
1654 /* Prologue constants are sometimes present in the ".text"
1655 sections and they can be identified by their associated
1656 relocation. We don't want to process those words and
1657 some others which can also be identified by their
1658 relocations. However, not all conditional branches will
1659 have a relocation so we will only ignore words that
1660 1) have a reloc, and 2) the reloc is not applicable to a
1661 conditional branch. The array rela_comb is built here
1662 for use in the EOP scan loop. */
1665 case R_PPC_ADDR14_BRNTAKEN
:
1667 case R_PPC_REL14_BRNTAKEN
:
1668 /* We should check the instruction. */
1671 /* The word is not a conditional branch - ignore it. */
1672 rela_comb
[comb_count
++] = &internal_relocs
[n
];
1677 qsort (rela_comb
, (size_t) comb_count
, sizeof (int),
1681 /* Enumerate each EOP region that overlaps this section. */
1682 end_section
= isec
->vma
+ isec
->_cooked_size
;
1683 dot
= end_page
= (isec
->vma
| (PAGESIZE
- 1)) + 1;
1684 dot
-= link_info
->mpc860c0
;
1685 section_modified
= FALSE
;
1686 /* Increment the start position if this section begins in the
1687 middle of its first EOP region. */
1688 if (dot
< isec
->vma
)
1692 dot
+= PAGESIZE
, end_page
+= PAGESIZE
)
1694 /* Check each word in this EOP region. */
1695 for (; dot
< end_page
; dot
+= 4)
1697 bfd_vma isec_offset
;
1699 bfd_boolean skip
, modified
;
1701 /* Don't process this word if there is a relocation for it
1702 and the relocation indicates the word is not a
1703 conditional branch. */
1705 isec_offset
= dot
- isec
->vma
;
1706 for (; comb_curr
<comb_count
; ++comb_curr
)
1710 r_offset
= rela_comb
[comb_curr
]->r_offset
;
1711 if (r_offset
>= isec_offset
)
1713 if (r_offset
== isec_offset
) skip
= TRUE
;
1719 /* Check the current word for a problematic conditional
1721 #define BO0(insn) ((insn) & 0x02000000)
1722 #define BO2(insn) ((insn) & 0x00800000)
1723 #define BO4(insn) ((insn) & 0x00200000)
1724 insn
= (unsigned long) bfd_get_32 (abfd
, contents
+ isec_offset
);
1726 if ((insn
& 0xFc000000) == 0x40000000)
1728 /* Instruction is BCx */
1729 if ((!BO0(insn
) || !BO2(insn
)) && !BO4(insn
))
1733 /* This branch is predicted as "normal".
1734 If this is a forward branch, it is problematic. */
1735 target
= insn
& 0x0000Fffc;
1736 target
= (target
^ 0x8000) - 0x8000;
1737 if ((insn
& 0x00000002) == 0)
1738 /* Convert to abs. */
1742 /* Set the prediction bit. */
1748 else if ((insn
& 0xFc00Fffe) == 0x4c000420)
1750 /* Instruction is BCCTRx. */
1751 if ((!BO0(insn
) || !BO2(insn
)) && !BO4(insn
))
1753 /* This branch is predicted as not-taken.
1754 If this is a forward branch, it is problematic.
1755 Since we can't tell statically if it will branch
1756 forward, always set the prediction bit. */
1761 else if ((insn
& 0xFc00Fffe) == 0x4c000020)
1763 /* Instruction is BCLRx */
1764 if ((!BO0(insn
) || !BO2(insn
)) && !BO4(insn
))
1766 /* This branch is predicted as not-taken.
1767 If this is a forward branch, it is problematic.
1768 Since we can't tell statically if it will branch
1769 forward, always set the prediction bit. */
1779 bfd_put_32 (abfd
, insn
, contents
+ isec_offset
);
1780 section_modified
= TRUE
;
1784 if (section_modified
)
1786 elf_section_data (isec
)->this_hdr
.contents
= contents
;
1787 free_contents
= NULL
;
1791 if (rela_comb
!= NULL
)
1797 if (free_relocs
!= NULL
)
1803 if (free_contents
!= NULL
)
1805 if (! link_info
->keep_memory
)
1806 free (free_contents
);
1809 /* Cache the section contents for elf_link_input_bfd. */
1810 elf_section_data (isec
)->this_hdr
.contents
= contents
;
1812 free_contents
= NULL
;
1818 if (rela_comb
!= NULL
)
1820 if (free_relocs
!= NULL
)
1822 if (free_contents
!= NULL
)
1823 free (free_contents
);
1827 static reloc_howto_type
*
1828 ppc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1829 bfd_reloc_code_real_type code
)
1831 enum elf_ppc_reloc_type r
;
1833 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
1834 /* Initialize howto table if needed. */
1835 ppc_elf_howto_init ();
1842 case BFD_RELOC_NONE
: r
= R_PPC_NONE
; break;
1843 case BFD_RELOC_32
: r
= R_PPC_ADDR32
; break;
1844 case BFD_RELOC_PPC_BA26
: r
= R_PPC_ADDR24
; break;
1845 case BFD_RELOC_16
: r
= R_PPC_ADDR16
; break;
1846 case BFD_RELOC_LO16
: r
= R_PPC_ADDR16_LO
; break;
1847 case BFD_RELOC_HI16
: r
= R_PPC_ADDR16_HI
; break;
1848 case BFD_RELOC_HI16_S
: r
= R_PPC_ADDR16_HA
; break;
1849 case BFD_RELOC_PPC_BA16
: r
= R_PPC_ADDR14
; break;
1850 case BFD_RELOC_PPC_BA16_BRTAKEN
: r
= R_PPC_ADDR14_BRTAKEN
; break;
1851 case BFD_RELOC_PPC_BA16_BRNTAKEN
: r
= R_PPC_ADDR14_BRNTAKEN
; break;
1852 case BFD_RELOC_PPC_B26
: r
= R_PPC_REL24
; break;
1853 case BFD_RELOC_PPC_B16
: r
= R_PPC_REL14
; break;
1854 case BFD_RELOC_PPC_B16_BRTAKEN
: r
= R_PPC_REL14_BRTAKEN
; break;
1855 case BFD_RELOC_PPC_B16_BRNTAKEN
: r
= R_PPC_REL14_BRNTAKEN
; break;
1856 case BFD_RELOC_16_GOTOFF
: r
= R_PPC_GOT16
; break;
1857 case BFD_RELOC_LO16_GOTOFF
: r
= R_PPC_GOT16_LO
; break;
1858 case BFD_RELOC_HI16_GOTOFF
: r
= R_PPC_GOT16_HI
; break;
1859 case BFD_RELOC_HI16_S_GOTOFF
: r
= R_PPC_GOT16_HA
; break;
1860 case BFD_RELOC_24_PLT_PCREL
: r
= R_PPC_PLTREL24
; break;
1861 case BFD_RELOC_PPC_COPY
: r
= R_PPC_COPY
; break;
1862 case BFD_RELOC_PPC_GLOB_DAT
: r
= R_PPC_GLOB_DAT
; break;
1863 case BFD_RELOC_PPC_LOCAL24PC
: r
= R_PPC_LOCAL24PC
; break;
1864 case BFD_RELOC_32_PCREL
: r
= R_PPC_REL32
; break;
1865 case BFD_RELOC_32_PLTOFF
: r
= R_PPC_PLT32
; break;
1866 case BFD_RELOC_32_PLT_PCREL
: r
= R_PPC_PLTREL32
; break;
1867 case BFD_RELOC_LO16_PLTOFF
: r
= R_PPC_PLT16_LO
; break;
1868 case BFD_RELOC_HI16_PLTOFF
: r
= R_PPC_PLT16_HI
; break;
1869 case BFD_RELOC_HI16_S_PLTOFF
: r
= R_PPC_PLT16_HA
; break;
1870 case BFD_RELOC_GPREL16
: r
= R_PPC_SDAREL16
; break;
1871 case BFD_RELOC_16_BASEREL
: r
= R_PPC_SECTOFF
; break;
1872 case BFD_RELOC_LO16_BASEREL
: r
= R_PPC_SECTOFF_LO
; break;
1873 case BFD_RELOC_HI16_BASEREL
: r
= R_PPC_SECTOFF_HI
; break;
1874 case BFD_RELOC_HI16_S_BASEREL
: r
= R_PPC_SECTOFF_HA
; break;
1875 case BFD_RELOC_CTOR
: r
= R_PPC_ADDR32
; break;
1876 case BFD_RELOC_PPC_TOC16
: r
= R_PPC_TOC16
; break;
1877 case BFD_RELOC_PPC_TLS
: r
= R_PPC_TLS
; break;
1878 case BFD_RELOC_PPC_DTPMOD
: r
= R_PPC_DTPMOD32
; break;
1879 case BFD_RELOC_PPC_TPREL16
: r
= R_PPC_TPREL16
; break;
1880 case BFD_RELOC_PPC_TPREL16_LO
: r
= R_PPC_TPREL16_LO
; break;
1881 case BFD_RELOC_PPC_TPREL16_HI
: r
= R_PPC_TPREL16_HI
; break;
1882 case BFD_RELOC_PPC_TPREL16_HA
: r
= R_PPC_TPREL16_HA
; break;
1883 case BFD_RELOC_PPC_TPREL
: r
= R_PPC_TPREL32
; break;
1884 case BFD_RELOC_PPC_DTPREL16
: r
= R_PPC_DTPREL16
; break;
1885 case BFD_RELOC_PPC_DTPREL16_LO
: r
= R_PPC_DTPREL16_LO
; break;
1886 case BFD_RELOC_PPC_DTPREL16_HI
: r
= R_PPC_DTPREL16_HI
; break;
1887 case BFD_RELOC_PPC_DTPREL16_HA
: r
= R_PPC_DTPREL16_HA
; break;
1888 case BFD_RELOC_PPC_DTPREL
: r
= R_PPC_DTPREL32
; break;
1889 case BFD_RELOC_PPC_GOT_TLSGD16
: r
= R_PPC_GOT_TLSGD16
; break;
1890 case BFD_RELOC_PPC_GOT_TLSGD16_LO
: r
= R_PPC_GOT_TLSGD16_LO
; break;
1891 case BFD_RELOC_PPC_GOT_TLSGD16_HI
: r
= R_PPC_GOT_TLSGD16_HI
; break;
1892 case BFD_RELOC_PPC_GOT_TLSGD16_HA
: r
= R_PPC_GOT_TLSGD16_HA
; break;
1893 case BFD_RELOC_PPC_GOT_TLSLD16
: r
= R_PPC_GOT_TLSLD16
; break;
1894 case BFD_RELOC_PPC_GOT_TLSLD16_LO
: r
= R_PPC_GOT_TLSLD16_LO
; break;
1895 case BFD_RELOC_PPC_GOT_TLSLD16_HI
: r
= R_PPC_GOT_TLSLD16_HI
; break;
1896 case BFD_RELOC_PPC_GOT_TLSLD16_HA
: r
= R_PPC_GOT_TLSLD16_HA
; break;
1897 case BFD_RELOC_PPC_GOT_TPREL16
: r
= R_PPC_GOT_TPREL16
; break;
1898 case BFD_RELOC_PPC_GOT_TPREL16_LO
: r
= R_PPC_GOT_TPREL16_LO
; break;
1899 case BFD_RELOC_PPC_GOT_TPREL16_HI
: r
= R_PPC_GOT_TPREL16_HI
; break;
1900 case BFD_RELOC_PPC_GOT_TPREL16_HA
: r
= R_PPC_GOT_TPREL16_HA
; break;
1901 case BFD_RELOC_PPC_GOT_DTPREL16
: r
= R_PPC_GOT_DTPREL16
; break;
1902 case BFD_RELOC_PPC_GOT_DTPREL16_LO
: r
= R_PPC_GOT_DTPREL16_LO
; break;
1903 case BFD_RELOC_PPC_GOT_DTPREL16_HI
: r
= R_PPC_GOT_DTPREL16_HI
; break;
1904 case BFD_RELOC_PPC_GOT_DTPREL16_HA
: r
= R_PPC_GOT_DTPREL16_HA
; break;
1905 case BFD_RELOC_PPC_EMB_NADDR32
: r
= R_PPC_EMB_NADDR32
; break;
1906 case BFD_RELOC_PPC_EMB_NADDR16
: r
= R_PPC_EMB_NADDR16
; break;
1907 case BFD_RELOC_PPC_EMB_NADDR16_LO
: r
= R_PPC_EMB_NADDR16_LO
; break;
1908 case BFD_RELOC_PPC_EMB_NADDR16_HI
: r
= R_PPC_EMB_NADDR16_HI
; break;
1909 case BFD_RELOC_PPC_EMB_NADDR16_HA
: r
= R_PPC_EMB_NADDR16_HA
; break;
1910 case BFD_RELOC_PPC_EMB_SDAI16
: r
= R_PPC_EMB_SDAI16
; break;
1911 case BFD_RELOC_PPC_EMB_SDA2I16
: r
= R_PPC_EMB_SDA2I16
; break;
1912 case BFD_RELOC_PPC_EMB_SDA2REL
: r
= R_PPC_EMB_SDA2REL
; break;
1913 case BFD_RELOC_PPC_EMB_SDA21
: r
= R_PPC_EMB_SDA21
; break;
1914 case BFD_RELOC_PPC_EMB_MRKREF
: r
= R_PPC_EMB_MRKREF
; break;
1915 case BFD_RELOC_PPC_EMB_RELSEC16
: r
= R_PPC_EMB_RELSEC16
; break;
1916 case BFD_RELOC_PPC_EMB_RELST_LO
: r
= R_PPC_EMB_RELST_LO
; break;
1917 case BFD_RELOC_PPC_EMB_RELST_HI
: r
= R_PPC_EMB_RELST_HI
; break;
1918 case BFD_RELOC_PPC_EMB_RELST_HA
: r
= R_PPC_EMB_RELST_HA
; break;
1919 case BFD_RELOC_PPC_EMB_BIT_FLD
: r
= R_PPC_EMB_BIT_FLD
; break;
1920 case BFD_RELOC_PPC_EMB_RELSDA
: r
= R_PPC_EMB_RELSDA
; break;
1921 case BFD_RELOC_VTABLE_INHERIT
: r
= R_PPC_GNU_VTINHERIT
; break;
1922 case BFD_RELOC_VTABLE_ENTRY
: r
= R_PPC_GNU_VTENTRY
; break;
1925 return ppc_elf_howto_table
[r
];
1928 /* Set the howto pointer for a PowerPC ELF reloc. */
1931 ppc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
1933 Elf_Internal_Rela
*dst
)
1935 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
1936 /* Initialize howto table if needed. */
1937 ppc_elf_howto_init ();
1939 BFD_ASSERT (ELF32_R_TYPE (dst
->r_info
) < (unsigned int) R_PPC_max
);
1940 cache_ptr
->howto
= ppc_elf_howto_table
[ELF32_R_TYPE (dst
->r_info
)];
1943 /* Handle the R_PPC_ADDR16_HA reloc. */
1945 static bfd_reloc_status_type
1946 ppc_elf_addr16_ha_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
1947 arelent
*reloc_entry
,
1949 void *data ATTRIBUTE_UNUSED
,
1950 asection
*input_section
,
1952 char **error_message ATTRIBUTE_UNUSED
)
1956 if (output_bfd
!= NULL
)
1958 reloc_entry
->address
+= input_section
->output_offset
;
1959 return bfd_reloc_ok
;
1962 if (reloc_entry
->address
> input_section
->_cooked_size
)
1963 return bfd_reloc_outofrange
;
1965 if (bfd_is_com_section (symbol
->section
))
1968 relocation
= symbol
->value
;
1970 relocation
+= symbol
->section
->output_section
->vma
;
1971 relocation
+= symbol
->section
->output_offset
;
1972 relocation
+= reloc_entry
->addend
;
1974 reloc_entry
->addend
+= (relocation
& 0x8000) << 1;
1976 return bfd_reloc_continue
;
1979 static bfd_reloc_status_type
1980 ppc_elf_unhandled_reloc (bfd
*abfd
,
1981 arelent
*reloc_entry
,
1984 asection
*input_section
,
1986 char **error_message
)
1988 /* If this is a relocatable link (output_bfd test tells us), just
1989 call the generic function. Any adjustment will be done at final
1991 if (output_bfd
!= NULL
)
1992 return bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
1993 input_section
, output_bfd
, error_message
);
1995 if (error_message
!= NULL
)
1997 static char buf
[60];
1998 sprintf (buf
, _("generic linker can't handle %s"),
1999 reloc_entry
->howto
->name
);
2000 *error_message
= buf
;
2002 return bfd_reloc_dangerous
;
2005 /* Fix bad default arch selected for a 32 bit input bfd when the
2006 default is 64 bit. */
2009 ppc_elf_object_p (bfd
*abfd
)
2011 if (abfd
->arch_info
->the_default
&& abfd
->arch_info
->bits_per_word
== 64)
2013 Elf_Internal_Ehdr
*i_ehdr
= elf_elfheader (abfd
);
2015 if (i_ehdr
->e_ident
[EI_CLASS
] == ELFCLASS32
)
2017 /* Relies on arch after 64 bit default being 32 bit default. */
2018 abfd
->arch_info
= abfd
->arch_info
->next
;
2019 BFD_ASSERT (abfd
->arch_info
->bits_per_word
== 32);
2025 /* Function to set whether a module needs the -mrelocatable bit set. */
2028 ppc_elf_set_private_flags (bfd
*abfd
, flagword flags
)
2030 BFD_ASSERT (!elf_flags_init (abfd
)
2031 || elf_elfheader (abfd
)->e_flags
== flags
);
2033 elf_elfheader (abfd
)->e_flags
= flags
;
2034 elf_flags_init (abfd
) = TRUE
;
2038 /* Merge backend specific data from an object file to the output
2039 object file when linking. */
2042 ppc_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
2048 /* Check if we have the same endianess. */
2049 if (! _bfd_generic_verify_endian_match (ibfd
, obfd
))
2052 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2053 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2056 new_flags
= elf_elfheader (ibfd
)->e_flags
;
2057 old_flags
= elf_elfheader (obfd
)->e_flags
;
2058 if (!elf_flags_init (obfd
))
2060 /* First call, no flags set. */
2061 elf_flags_init (obfd
) = TRUE
;
2062 elf_elfheader (obfd
)->e_flags
= new_flags
;
2065 /* Compatible flags are ok. */
2066 else if (new_flags
== old_flags
)
2069 /* Incompatible flags. */
2072 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
2073 to be linked with either. */
2075 if ((new_flags
& EF_PPC_RELOCATABLE
) != 0
2076 && (old_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0)
2079 (*_bfd_error_handler
)
2080 (_("%s: compiled with -mrelocatable and linked with "
2081 "modules compiled normally"),
2082 bfd_archive_filename (ibfd
));
2084 else if ((new_flags
& (EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
)) == 0
2085 && (old_flags
& EF_PPC_RELOCATABLE
) != 0)
2088 (*_bfd_error_handler
)
2089 (_("%s: compiled normally and linked with "
2090 "modules compiled with -mrelocatable"),
2091 bfd_archive_filename (ibfd
));
2094 /* The output is -mrelocatable-lib iff both the input files are. */
2095 if (! (new_flags
& EF_PPC_RELOCATABLE_LIB
))
2096 elf_elfheader (obfd
)->e_flags
&= ~EF_PPC_RELOCATABLE_LIB
;
2098 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
2099 but each input file is either -mrelocatable or -mrelocatable-lib. */
2100 if (! (elf_elfheader (obfd
)->e_flags
& EF_PPC_RELOCATABLE_LIB
)
2101 && (new_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
))
2102 && (old_flags
& (EF_PPC_RELOCATABLE_LIB
| EF_PPC_RELOCATABLE
)))
2103 elf_elfheader (obfd
)->e_flags
|= EF_PPC_RELOCATABLE
;
2105 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
2106 any module uses it. */
2107 elf_elfheader (obfd
)->e_flags
|= (new_flags
& EF_PPC_EMB
);
2109 new_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
2110 old_flags
&= ~(EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB
| EF_PPC_EMB
);
2112 /* Warn about any other mismatches. */
2113 if (new_flags
!= old_flags
)
2116 (*_bfd_error_handler
)
2117 (_("%s: uses different e_flags (0x%lx) fields "
2118 "than previous modules (0x%lx)"),
2119 bfd_archive_filename (ibfd
), (long) new_flags
, (long) old_flags
);
2124 bfd_set_error (bfd_error_bad_value
);
2132 /* Handle a PowerPC specific section when reading an object file. This
2133 is called when elfcode.h finds a section with an unknown type. */
2136 ppc_elf_section_from_shdr (bfd
*abfd
, Elf_Internal_Shdr
*hdr
, const char *name
)
2141 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
2144 newsect
= hdr
->bfd_section
;
2145 flags
= bfd_get_section_flags (abfd
, newsect
);
2146 if (hdr
->sh_flags
& SHF_EXCLUDE
)
2147 flags
|= SEC_EXCLUDE
;
2149 if (hdr
->sh_type
== SHT_ORDERED
)
2150 flags
|= SEC_SORT_ENTRIES
;
2152 bfd_set_section_flags (abfd
, newsect
, flags
);
2156 /* Set up any other section flags and such that may be necessary. */
2159 ppc_elf_fake_sections (bfd
*abfd ATTRIBUTE_UNUSED
,
2160 Elf_Internal_Shdr
*shdr
,
2163 if ((asect
->flags
& SEC_EXCLUDE
) != 0)
2164 shdr
->sh_flags
|= SHF_EXCLUDE
;
2166 if ((asect
->flags
& SEC_SORT_ENTRIES
) != 0)
2167 shdr
->sh_type
= SHT_ORDERED
;
2172 /* Create a special linker section */
2173 static elf_linker_section_t
*
2174 ppc_elf_create_linker_section (bfd
*abfd
,
2175 struct bfd_link_info
*info
,
2176 enum elf_linker_section_enum which
)
2178 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
2179 elf_linker_section_t
*lsect
;
2181 /* Record the first bfd section that needs the special section. */
2183 dynobj
= elf_hash_table (info
)->dynobj
= abfd
;
2185 /* If this is the first time, create the section. */
2186 lsect
= elf_linker_section (dynobj
, which
);
2189 elf_linker_section_t defaults
;
2190 static elf_linker_section_t zero_section
;
2192 defaults
= zero_section
;
2193 defaults
.which
= which
;
2194 defaults
.hole_written_p
= FALSE
;
2195 defaults
.alignment
= 2;
2197 /* Both of these sections are (technically) created by the user
2198 putting data in them, so they shouldn't be marked
2201 The linker creates them so it has somewhere to attach their
2202 respective symbols. In fact, if they were empty it would
2203 be OK to leave the symbol set to 0 (or any random number), because
2204 the appropriate register should never be used. */
2205 defaults
.flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
2211 (*_bfd_error_handler
) (_("%s: unknown special linker type %d"),
2212 bfd_get_filename (abfd
),
2215 bfd_set_error (bfd_error_bad_value
);
2218 case LINKER_SECTION_SDATA
: /* .sdata/.sbss section */
2219 defaults
.name
= ".sdata";
2220 defaults
.rel_name
= ".rela.sdata";
2221 defaults
.bss_name
= ".sbss";
2222 defaults
.sym_name
= "_SDA_BASE_";
2223 defaults
.sym_offset
= 32768;
2226 case LINKER_SECTION_SDATA2
: /* .sdata2/.sbss2 section */
2227 defaults
.name
= ".sdata2";
2228 defaults
.rel_name
= ".rela.sdata2";
2229 defaults
.bss_name
= ".sbss2";
2230 defaults
.sym_name
= "_SDA2_BASE_";
2231 defaults
.sym_offset
= 32768;
2232 defaults
.flags
|= SEC_READONLY
;
2236 lsect
= _bfd_elf_create_linker_section (abfd
, info
, which
, &defaults
);
2242 /* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we
2243 need to bump up the number of section headers. */
2246 ppc_elf_additional_program_headers (bfd
*abfd
)
2253 s
= bfd_get_section_by_name (abfd
, ".interp");
2257 s
= bfd_get_section_by_name (abfd
, ".sbss2");
2258 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0 && s
->_raw_size
> 0)
2261 s
= bfd_get_section_by_name (abfd
, ".PPC.EMB.sbss0");
2262 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0 && s
->_raw_size
> 0)
2268 /* Modify the segment map if needed. */
2271 ppc_elf_modify_segment_map (bfd
*abfd ATTRIBUTE_UNUSED
)
2276 /* The powerpc .got has a blrl instruction in it. Mark it executable. */
2279 ppc_elf_create_got (bfd
*abfd
, struct bfd_link_info
*info
)
2281 struct ppc_elf_link_hash_table
*htab
;
2285 if (!_bfd_elf_create_got_section (abfd
, info
))
2288 htab
= ppc_elf_hash_table (info
);
2289 htab
->got
= s
= bfd_get_section_by_name (abfd
, ".got");
2293 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_CODE
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
2294 | SEC_LINKER_CREATED
);
2295 if (!bfd_set_section_flags (abfd
, s
, flags
))
2298 htab
->relgot
= bfd_make_section (abfd
, ".rela.got");
2300 || ! bfd_set_section_flags (abfd
, htab
->relgot
,
2301 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
2302 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
2304 || ! bfd_set_section_alignment (abfd
, htab
->relgot
, 2))
2310 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
2311 to output sections (just like _bfd_elf_create_dynamic_sections has
2312 to create .dynbss and .rela.bss). */
2315 ppc_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
2317 struct ppc_elf_link_hash_table
*htab
;
2321 if (!ppc_elf_create_got (abfd
, info
))
2324 if (!_bfd_elf_create_dynamic_sections (abfd
, info
))
2327 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
2328 | SEC_LINKER_CREATED
);
2330 htab
= ppc_elf_hash_table (info
);
2331 htab
->dynbss
= bfd_get_section_by_name (abfd
, ".dynbss");
2332 htab
->dynsbss
= s
= bfd_make_section (abfd
, ".dynsbss");
2334 || ! bfd_set_section_flags (abfd
, s
, SEC_ALLOC
))
2339 htab
->relbss
= bfd_get_section_by_name (abfd
, ".rela.bss");
2340 htab
->relsbss
= s
= bfd_make_section (abfd
, ".rela.sbss");
2342 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
2343 || ! bfd_set_section_alignment (abfd
, s
, 2))
2347 htab
->relplt
= bfd_get_section_by_name (abfd
, ".rela.plt");
2348 htab
->plt
= s
= bfd_get_section_by_name (abfd
, ".plt");
2352 flags
= SEC_ALLOC
| SEC_CODE
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
;
2353 return bfd_set_section_flags (abfd
, s
, flags
);
2356 /* Adjust a symbol defined by a dynamic object and referenced by a
2357 regular object. The current definition is in some section of the
2358 dynamic object, but we're not including those sections. We have to
2359 change the definition to something the rest of the link can
2363 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2364 struct elf_link_hash_entry
*h
)
2366 struct ppc_elf_link_hash_table
*htab
;
2368 unsigned int power_of_two
;
2371 fprintf (stderr
, "ppc_elf_adjust_dynamic_symbol called for %s\n",
2372 h
->root
.root
.string
);
2375 /* Make sure we know what is going on here. */
2376 htab
= ppc_elf_hash_table (info
);
2377 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
2378 && ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
)
2379 || h
->weakdef
!= NULL
2380 || ((h
->elf_link_hash_flags
2381 & ELF_LINK_HASH_DEF_DYNAMIC
) != 0
2382 && (h
->elf_link_hash_flags
2383 & ELF_LINK_HASH_REF_REGULAR
) != 0
2384 && (h
->elf_link_hash_flags
2385 & ELF_LINK_HASH_DEF_REGULAR
) == 0)));
2387 /* Deal with function syms. */
2388 if (h
->type
== STT_FUNC
2389 || (h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
2391 /* Clear procedure linkage table information for any symbol that
2392 won't need a .plt entry. */
2393 if (h
->plt
.refcount
<= 0
2394 || SYMBOL_CALLS_LOCAL (info
, h
)
2395 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2396 && h
->root
.type
== bfd_link_hash_undefweak
))
2398 /* A PLT entry is not required/allowed when:
2400 1. We are not using ld.so; because then the PLT entry
2401 can't be set up, so we can't use one. In this case,
2402 ppc_elf_adjust_dynamic_symbol won't even be called.
2404 2. GC has rendered the entry unused.
2406 3. We know for certain that a call to this symbol
2407 will go to this object, or will remain undefined. */
2408 h
->plt
.offset
= (bfd_vma
) -1;
2409 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
2414 h
->plt
.offset
= (bfd_vma
) -1;
2416 /* If this is a weak symbol, and there is a real definition, the
2417 processor independent code will have arranged for us to see the
2418 real definition first, and we can just use the same value. */
2419 if (h
->weakdef
!= NULL
)
2421 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2422 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2423 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2424 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2425 if (ELIMINATE_COPY_RELOCS
)
2426 h
->elf_link_hash_flags
2427 = ((h
->elf_link_hash_flags
& ~ELF_LINK_NON_GOT_REF
)
2428 | (h
->weakdef
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
));
2432 /* This is a reference to a symbol defined by a dynamic object which
2433 is not a function. */
2435 /* If we are creating a shared library, we must presume that the
2436 only references to the symbol are via the global offset table.
2437 For such cases we need not do anything here; the relocations will
2438 be handled correctly by relocate_section. */
2442 /* If there are no references to this symbol that do not use the
2443 GOT, we don't need to generate a copy reloc. */
2444 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0)
2447 if (ELIMINATE_COPY_RELOCS
)
2449 struct ppc_elf_dyn_relocs
*p
;
2450 for (p
= ppc_elf_hash_entry (h
)->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2452 s
= p
->sec
->output_section
;
2453 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2457 /* If we didn't find any dynamic relocs in read-only sections, then
2458 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2461 h
->elf_link_hash_flags
&= ~ELF_LINK_NON_GOT_REF
;
2466 /* We must allocate the symbol in our .dynbss section, which will
2467 become part of the .bss section of the executable. There will be
2468 an entry for this symbol in the .dynsym section. The dynamic
2469 object will contain position independent code, so all references
2470 from the dynamic object to this symbol will go through the global
2471 offset table. The dynamic linker will use the .dynsym entry to
2472 determine the address it must put in the global offset table, so
2473 both the dynamic object and the regular object will refer to the
2474 same memory location for the variable.
2476 Of course, if the symbol is sufficiently small, we must instead
2477 allocate it in .sbss. FIXME: It would be better to do this if and
2478 only if there were actually SDAREL relocs for that symbol. */
2480 if (h
->size
<= elf_gp_size (htab
->elf
.dynobj
))
2484 BFD_ASSERT (s
!= NULL
);
2486 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
2487 copy the initial value out of the dynamic object and into the
2488 runtime process image. We need to remember the offset into the
2489 .rela.bss section we are going to use. */
2490 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
2494 if (h
->size
<= elf_gp_size (htab
->elf
.dynobj
))
2495 srel
= htab
->relsbss
;
2497 srel
= htab
->relbss
;
2498 BFD_ASSERT (srel
!= NULL
);
2499 srel
->_raw_size
+= sizeof (Elf32_External_Rela
);
2500 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_COPY
;
2503 /* We need to figure out the alignment required for this symbol. I
2504 have no idea how ELF linkers handle this. */
2505 power_of_two
= bfd_log2 (h
->size
);
2506 if (power_of_two
> 4)
2509 /* Apply the required alignment. */
2510 s
->_raw_size
= BFD_ALIGN (s
->_raw_size
,
2511 (bfd_size_type
) (1 << power_of_two
));
2512 if (power_of_two
> bfd_get_section_alignment (htab
->elf
.dynobj
, s
))
2514 if (! bfd_set_section_alignment (htab
->elf
.dynobj
, s
, power_of_two
))
2518 /* Define the symbol as being at this point in the section. */
2519 h
->root
.u
.def
.section
= s
;
2520 h
->root
.u
.def
.value
= s
->_raw_size
;
2522 /* Increment the section size to make room for the symbol. */
2523 s
->_raw_size
+= h
->size
;
2528 /* This is the condition under which finish_dynamic_symbol will be
2529 called from elflink.h. If elflink.h doesn't call our
2530 finish_dynamic_symbol routine, we'll need to do something about
2531 initializing any .plt and .got entries in relocate_section. */
2532 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
2535 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
2536 && ((H)->dynindx != -1 \
2537 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
2539 /* Of those relocs that might be copied as dynamic relocs, this macro
2540 selects those that must be copied when linking a shared library,
2541 even when the symbol is local. */
2543 #define MUST_BE_DYN_RELOC(RTYPE) \
2544 ((RTYPE) != R_PPC_REL24 \
2545 && (RTYPE) != R_PPC_REL14 \
2546 && (RTYPE) != R_PPC_REL14_BRTAKEN \
2547 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
2548 && (RTYPE) != R_PPC_REL32)
2550 /* Allocate space in associated reloc sections for dynamic relocs. */
2553 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2555 struct bfd_link_info
*info
= inf
;
2556 struct ppc_elf_link_hash_entry
*eh
;
2557 struct ppc_elf_link_hash_table
*htab
;
2558 struct ppc_elf_dyn_relocs
*p
;
2560 if (h
->root
.type
== bfd_link_hash_indirect
)
2563 if (h
->root
.type
== bfd_link_hash_warning
)
2564 /* When warning symbols are created, they **replace** the "real"
2565 entry in the hash table, thus we never get to see the real
2566 symbol in a hash traversal. So look at it now. */
2567 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2569 htab
= ppc_elf_hash_table (info
);
2570 if (htab
->elf
.dynamic_sections_created
2571 && h
->plt
.refcount
> 0)
2573 /* Make sure this symbol is output as a dynamic symbol. */
2574 if (h
->dynindx
== -1
2575 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
2577 if (! bfd_elf32_link_record_dynamic_symbol (info
, h
))
2582 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2584 asection
*s
= htab
->plt
;
2586 /* If this is the first .plt entry, make room for the special
2588 if (s
->_raw_size
== 0)
2589 s
->_raw_size
+= PLT_INITIAL_ENTRY_SIZE
;
2591 /* The PowerPC PLT is actually composed of two parts, the
2592 first part is 2 words (for a load and a jump), and then
2593 there is a remaining word available at the end. */
2594 h
->plt
.offset
= (PLT_INITIAL_ENTRY_SIZE
2596 * ((s
->_raw_size
- PLT_INITIAL_ENTRY_SIZE
)
2597 / PLT_ENTRY_SIZE
)));
2599 /* If this symbol is not defined in a regular file, and we
2600 are not generating a shared library, then set the symbol
2601 to this location in the .plt. This is required to make
2602 function pointers compare as equal between the normal
2603 executable and the shared library. */
2605 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
2607 h
->root
.u
.def
.section
= s
;
2608 h
->root
.u
.def
.value
= h
->plt
.offset
;
2611 /* Make room for this entry. After the 8192nd entry, room
2612 for two entries is allocated. */
2613 s
->_raw_size
+= PLT_ENTRY_SIZE
;
2614 if ((s
->_raw_size
- PLT_INITIAL_ENTRY_SIZE
) / PLT_ENTRY_SIZE
2615 > PLT_NUM_SINGLE_ENTRIES
)
2616 s
->_raw_size
+= PLT_ENTRY_SIZE
;
2618 /* We also need to make an entry in the .rela.plt section. */
2619 htab
->relplt
->_raw_size
+= sizeof (Elf32_External_Rela
);
2623 h
->plt
.offset
= (bfd_vma
) -1;
2624 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
2629 h
->plt
.offset
= (bfd_vma
) -1;
2630 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
2633 eh
= (struct ppc_elf_link_hash_entry
*) h
;
2634 if (eh
->elf
.got
.refcount
> 0)
2636 /* Make sure this symbol is output as a dynamic symbol. */
2637 if (eh
->elf
.dynindx
== -1
2638 && (eh
->elf
.elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
2640 if (!bfd_elf32_link_record_dynamic_symbol (info
, &eh
->elf
))
2644 if (eh
->tls_mask
== (TLS_TLS
| TLS_LD
)
2645 && !(eh
->elf
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
2646 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
2647 eh
->elf
.got
.offset
= (bfd_vma
) -1;
2651 eh
->elf
.got
.offset
= htab
->got
->_raw_size
;
2652 if ((eh
->tls_mask
& TLS_TLS
) != 0)
2654 if ((eh
->tls_mask
& TLS_LD
) != 0)
2655 htab
->got
->_raw_size
+= 8;
2656 if ((eh
->tls_mask
& TLS_GD
) != 0)
2657 htab
->got
->_raw_size
+= 8;
2658 if ((eh
->tls_mask
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
2659 htab
->got
->_raw_size
+= 4;
2660 if ((eh
->tls_mask
& TLS_DTPREL
) != 0)
2661 htab
->got
->_raw_size
+= 4;
2664 htab
->got
->_raw_size
+= 4;
2665 dyn
= htab
->elf
.dynamic_sections_created
;
2667 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, &eh
->elf
))
2668 && (ELF_ST_VISIBILITY (eh
->elf
.other
) == STV_DEFAULT
2669 || eh
->elf
.root
.type
!= bfd_link_hash_undefweak
))
2671 /* All the entries we allocated need relocs. */
2672 htab
->relgot
->_raw_size
2673 += ((htab
->got
->_raw_size
- eh
->elf
.got
.offset
) / 4
2674 * sizeof (Elf32_External_Rela
));
2675 /* Except LD only needs one. */
2676 if ((eh
->tls_mask
& TLS_LD
) != 0)
2677 htab
->relgot
->_raw_size
-= sizeof (Elf32_External_Rela
);
2682 eh
->elf
.got
.offset
= (bfd_vma
) -1;
2684 if (eh
->dyn_relocs
== NULL
)
2687 /* In the shared -Bsymbolic case, discard space allocated for
2688 dynamic pc-relative relocs against symbols which turn out to be
2689 defined in regular objects. For the normal shared case, discard
2690 space for relocs that have become local due to symbol visibility
2695 /* Relocs that use pc_count are those that appear on a call insn,
2696 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
2697 generated via assembly. We want calls to protected symbols to
2698 resolve directly to the function rather than going via the plt.
2699 If people want function pointer comparisons to work as expected
2700 then they should avoid writing weird assembly. */
2701 if (SYMBOL_CALLS_LOCAL (info
, h
))
2703 struct ppc_elf_dyn_relocs
**pp
;
2705 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
2707 p
->count
-= p
->pc_count
;
2716 /* Also discard relocs on undefined weak syms with non-default
2718 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2719 && h
->root
.type
== bfd_link_hash_undefweak
)
2720 eh
->dyn_relocs
= NULL
;
2722 else if (ELIMINATE_COPY_RELOCS
)
2724 /* For the non-shared case, discard space for relocs against
2725 symbols which turn out to need copy relocs or are not
2728 if ((h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
2729 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
2730 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
2732 /* Make sure this symbol is output as a dynamic symbol.
2733 Undefined weak syms won't yet be marked as dynamic. */
2734 if (h
->dynindx
== -1
2735 && (h
->elf_link_hash_flags
& ELF_LINK_FORCED_LOCAL
) == 0)
2737 if (! bfd_elf64_link_record_dynamic_symbol (info
, h
))
2741 /* If that succeeded, we know we'll be keeping all the
2743 if (h
->dynindx
!= -1)
2747 eh
->dyn_relocs
= NULL
;
2752 /* Finally, allocate space. */
2753 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2755 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2756 sreloc
->_raw_size
+= p
->count
* sizeof (Elf32_External_Rela
);
2762 /* Find any dynamic relocs that apply to read-only sections. */
2765 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *info
)
2767 struct ppc_elf_dyn_relocs
*p
;
2769 if (h
->root
.type
== bfd_link_hash_indirect
)
2772 if (h
->root
.type
== bfd_link_hash_warning
)
2773 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2775 for (p
= ppc_elf_hash_entry (h
)->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2777 asection
*s
= p
->sec
->output_section
;
2780 && ((s
->flags
& (SEC_READONLY
| SEC_ALLOC
))
2781 == (SEC_READONLY
| SEC_ALLOC
)))
2783 ((struct bfd_link_info
*) info
)->flags
|= DF_TEXTREL
;
2785 /* Not an error, just cut short the traversal. */
2792 /* Set the sizes of the dynamic sections. */
2795 ppc_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2796 struct bfd_link_info
*info
)
2798 struct ppc_elf_link_hash_table
*htab
;
2804 fprintf (stderr
, "ppc_elf_size_dynamic_sections called\n");
2807 htab
= ppc_elf_hash_table (info
);
2808 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
2810 if (elf_hash_table (info
)->dynamic_sections_created
)
2812 /* Set the contents of the .interp section to the interpreter. */
2813 if (info
->executable
)
2815 s
= bfd_get_section_by_name (htab
->elf
.dynobj
, ".interp");
2816 BFD_ASSERT (s
!= NULL
);
2817 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2818 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2822 if (htab
->tlsld_got
.refcount
> 0)
2824 htab
->tlsld_got
.offset
= htab
->got
->_raw_size
;
2825 htab
->got
->_raw_size
+= 8;
2827 htab
->relgot
->_raw_size
+= sizeof (Elf32_External_Rela
);
2830 htab
->tlsld_got
.offset
= (bfd_vma
) -1;
2832 /* Set up .got offsets for local syms, and space for local dynamic
2834 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2836 bfd_signed_vma
*local_got
;
2837 bfd_signed_vma
*end_local_got
;
2839 bfd_size_type locsymcount
;
2840 Elf_Internal_Shdr
*symtab_hdr
;
2843 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2846 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2848 struct ppc_elf_dyn_relocs
*p
;
2850 for (p
= ((struct ppc_elf_dyn_relocs
*)
2851 elf_section_data (s
)->local_dynrel
);
2855 if (!bfd_is_abs_section (p
->sec
)
2856 && bfd_is_abs_section (p
->sec
->output_section
))
2858 /* Input section has been discarded, either because
2859 it is a copy of a linkonce section or due to
2860 linker script /DISCARD/, so we'll be discarding
2863 else if (p
->count
!= 0)
2865 elf_section_data (p
->sec
)->sreloc
->_raw_size
2866 += p
->count
* sizeof (Elf32_External_Rela
);
2867 if ((p
->sec
->output_section
->flags
2868 & (SEC_READONLY
| SEC_ALLOC
))
2869 == (SEC_READONLY
| SEC_ALLOC
))
2870 info
->flags
|= DF_TEXTREL
;
2875 local_got
= elf_local_got_refcounts (ibfd
);
2879 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2880 locsymcount
= symtab_hdr
->sh_info
;
2881 end_local_got
= local_got
+ locsymcount
;
2882 lgot_masks
= (char *) end_local_got
;
2884 srel
= htab
->relgot
;
2885 for (; local_got
< end_local_got
; ++local_got
, ++lgot_masks
)
2888 if (*lgot_masks
== (TLS_TLS
| TLS_LD
))
2890 /* If just an LD reloc, we'll just use
2891 htab->tlsld_got.offset. */
2892 if (htab
->tlsld_got
.offset
== (bfd_vma
) -1)
2894 htab
->tlsld_got
.offset
= s
->_raw_size
;
2897 srel
->_raw_size
+= sizeof (Elf32_External_Rela
);
2899 *local_got
= (bfd_vma
) -1;
2903 *local_got
= s
->_raw_size
;
2904 if ((*lgot_masks
& TLS_TLS
) != 0)
2906 if ((*lgot_masks
& TLS_GD
) != 0)
2908 if ((*lgot_masks
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
2910 if ((*lgot_masks
& TLS_DTPREL
) != 0)
2916 srel
->_raw_size
+= ((s
->_raw_size
- *local_got
) / 4
2917 * sizeof (Elf32_External_Rela
));
2921 *local_got
= (bfd_vma
) -1;
2924 /* Allocate space for global sym dynamic relocs. */
2925 elf_link_hash_traverse (elf_hash_table (info
), allocate_dynrelocs
, info
);
2927 /* We've now determined the sizes of the various dynamic sections.
2928 Allocate memory for them. */
2930 for (s
= htab
->elf
.dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2932 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2937 || (htab
->sdata
!= NULL
&& s
== htab
->sdata
->section
)
2938 || (htab
->sdata2
!= NULL
&& s
== htab
->sdata2
->section
))
2940 /* Strip this section if we don't need it; see the
2943 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
2945 if (s
->_raw_size
== 0)
2947 /* If we don't need this section, strip it from the
2948 output file. This is mostly to handle .rela.bss and
2949 .rela.plt. We must create both sections in
2950 create_dynamic_sections, because they must be created
2951 before the linker maps input sections to output
2952 sections. The linker does that before
2953 adjust_dynamic_symbol is called, and it is that
2954 function which decides whether anything needs to go
2955 into these sections. */
2959 /* Remember whether there are any relocation sections. */
2962 /* We use the reloc_count field as a counter if we need
2963 to copy relocs into the output file. */
2969 /* It's not one of our sections, so don't allocate space. */
2973 if (s
->_raw_size
== 0)
2975 _bfd_strip_section_from_output (info
, s
);
2979 /* Allocate memory for the section contents. */
2980 s
->contents
= bfd_zalloc (htab
->elf
.dynobj
, s
->_raw_size
);
2981 if (s
->contents
== NULL
)
2985 if (htab
->elf
.dynamic_sections_created
)
2987 /* Add some entries to the .dynamic section. We fill in the
2988 values later, in ppc_elf_finish_dynamic_sections, but we
2989 must add the entries now so that we get the correct size for
2990 the .dynamic section. The DT_DEBUG entry is filled in by the
2991 dynamic linker and used by the debugger. */
2992 #define add_dynamic_entry(TAG, VAL) \
2993 bfd_elf32_add_dynamic_entry (info, (TAG), (VAL))
2995 if (info
->executable
)
2997 if (!add_dynamic_entry (DT_DEBUG
, 0))
3001 if (htab
->plt
!= NULL
&& htab
->plt
->_raw_size
!= 0)
3003 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3004 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3005 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3006 || !add_dynamic_entry (DT_JMPREL
, 0))
3012 if (!add_dynamic_entry (DT_RELA
, 0)
3013 || !add_dynamic_entry (DT_RELASZ
, 0)
3014 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3018 /* If any dynamic relocs apply to a read-only section, then we
3019 need a DT_TEXTREL entry. */
3020 if ((info
->flags
& DF_TEXTREL
) == 0)
3021 elf_link_hash_traverse (elf_hash_table (info
), readonly_dynrelocs
,
3024 if ((info
->flags
& DF_TEXTREL
) != 0)
3026 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3030 #undef add_dynamic_entry
3036 update_local_sym_info (bfd
*abfd
,
3037 Elf_Internal_Shdr
*symtab_hdr
,
3038 unsigned long r_symndx
,
3041 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (abfd
);
3042 char *local_got_tls_masks
;
3044 if (local_got_refcounts
== NULL
)
3046 bfd_size_type size
= symtab_hdr
->sh_info
;
3048 size
*= sizeof (*local_got_refcounts
) + sizeof (*local_got_tls_masks
);
3049 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3050 if (local_got_refcounts
== NULL
)
3052 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3055 local_got_refcounts
[r_symndx
] += 1;
3056 local_got_tls_masks
= (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
3057 local_got_tls_masks
[r_symndx
] |= tls_type
;
3062 bad_shared_reloc (bfd
*abfd
, enum elf_ppc_reloc_type r_type
)
3064 (*_bfd_error_handler
)
3065 (_("%s: relocation %s cannot be used when making a shared object"),
3066 bfd_archive_filename (abfd
),
3067 ppc_elf_howto_table
[r_type
]->name
);
3068 bfd_set_error (bfd_error_bad_value
);
3071 /* Look through the relocs for a section during the first phase, and
3072 allocate space in the global offset table or procedure linkage
3076 ppc_elf_check_relocs (bfd
*abfd
,
3077 struct bfd_link_info
*info
,
3079 const Elf_Internal_Rela
*relocs
)
3081 struct ppc_elf_link_hash_table
*htab
;
3082 Elf_Internal_Shdr
*symtab_hdr
;
3083 struct elf_link_hash_entry
**sym_hashes
;
3084 const Elf_Internal_Rela
*rel
;
3085 const Elf_Internal_Rela
*rel_end
;
3088 if (info
->relocateable
)
3092 fprintf (stderr
, "ppc_elf_check_relocs called for section %s in %s\n",
3093 bfd_get_section_name (abfd
, sec
),
3094 bfd_archive_filename (abfd
));
3097 /* Create the linker generated sections all the time so that the
3098 special symbols are created. */
3100 htab
= ppc_elf_hash_table (info
);
3101 if (htab
->sdata
== NULL
)
3103 htab
->sdata
= elf_linker_section (abfd
, LINKER_SECTION_SDATA
);
3104 if (htab
->sdata
== NULL
)
3105 htab
->sdata
= ppc_elf_create_linker_section (abfd
, info
,
3106 LINKER_SECTION_SDATA
);
3107 if (htab
->sdata
== NULL
)
3111 if (htab
->sdata2
== NULL
)
3113 htab
->sdata2
= elf_linker_section (abfd
, LINKER_SECTION_SDATA2
);
3114 if (htab
->sdata2
== NULL
)
3115 htab
->sdata2
= ppc_elf_create_linker_section (abfd
, info
,
3116 LINKER_SECTION_SDATA2
);
3117 if (htab
->sdata2
== NULL
)
3121 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3122 sym_hashes
= elf_sym_hashes (abfd
);
3125 rel_end
= relocs
+ sec
->reloc_count
;
3126 for (rel
= relocs
; rel
< rel_end
; rel
++)
3128 unsigned long r_symndx
;
3129 enum elf_ppc_reloc_type r_type
;
3130 struct elf_link_hash_entry
*h
;
3133 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3134 if (r_symndx
< symtab_hdr
->sh_info
)
3137 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3139 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3140 This shows up in particular in an R_PPC_ADDR32 in the eabi
3142 if (h
&& strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3144 if (htab
->got
== NULL
)
3146 if (htab
->elf
.dynobj
== NULL
)
3147 htab
->elf
.dynobj
= abfd
;
3148 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
3153 r_type
= ELF32_R_TYPE (rel
->r_info
);
3156 case R_PPC_GOT_TLSLD16
:
3157 case R_PPC_GOT_TLSLD16_LO
:
3158 case R_PPC_GOT_TLSLD16_HI
:
3159 case R_PPC_GOT_TLSLD16_HA
:
3160 htab
->tlsld_got
.refcount
+= 1;
3161 tls_type
= TLS_TLS
| TLS_LD
;
3164 case R_PPC_GOT_TLSGD16
:
3165 case R_PPC_GOT_TLSGD16_LO
:
3166 case R_PPC_GOT_TLSGD16_HI
:
3167 case R_PPC_GOT_TLSGD16_HA
:
3168 tls_type
= TLS_TLS
| TLS_GD
;
3171 case R_PPC_GOT_TPREL16
:
3172 case R_PPC_GOT_TPREL16_LO
:
3173 case R_PPC_GOT_TPREL16_HI
:
3174 case R_PPC_GOT_TPREL16_HA
:
3176 info
->flags
|= DF_STATIC_TLS
;
3177 tls_type
= TLS_TLS
| TLS_TPREL
;
3180 case R_PPC_GOT_DTPREL16
:
3181 case R_PPC_GOT_DTPREL16_LO
:
3182 case R_PPC_GOT_DTPREL16_HI
:
3183 case R_PPC_GOT_DTPREL16_HA
:
3184 tls_type
= TLS_TLS
| TLS_DTPREL
;
3186 sec
->has_tls_reloc
= 1;
3189 /* GOT16 relocations */
3191 case R_PPC_GOT16_LO
:
3192 case R_PPC_GOT16_HI
:
3193 case R_PPC_GOT16_HA
:
3194 /* This symbol requires a global offset table entry. */
3195 if (htab
->got
== NULL
)
3197 if (htab
->elf
.dynobj
== NULL
)
3198 htab
->elf
.dynobj
= abfd
;
3199 if (!ppc_elf_create_got (htab
->elf
.dynobj
, info
))
3204 h
->got
.refcount
+= 1;
3205 ppc_elf_hash_entry (h
)->tls_mask
|= tls_type
;
3208 /* This is a global offset table entry for a local symbol. */
3209 if (!update_local_sym_info (abfd
, symtab_hdr
, r_symndx
, tls_type
))
3213 /* Indirect .sdata relocation. */
3214 case R_PPC_EMB_SDAI16
:
3217 bad_shared_reloc (abfd
, r_type
);
3220 if (!bfd_elf32_create_pointer_linker_section (abfd
, info
,
3221 htab
->sdata
, h
, rel
))
3225 /* Indirect .sdata2 relocation. */
3226 case R_PPC_EMB_SDA2I16
:
3229 bad_shared_reloc (abfd
, r_type
);
3232 if (!bfd_elf32_create_pointer_linker_section (abfd
, info
,
3233 htab
->sdata2
, h
, rel
))
3237 case R_PPC_SDAREL16
:
3238 case R_PPC_EMB_SDA2REL
:
3239 case R_PPC_EMB_SDA21
:
3240 case R_PPC_EMB_RELSDA
:
3241 case R_PPC_EMB_NADDR32
:
3242 case R_PPC_EMB_NADDR16
:
3243 case R_PPC_EMB_NADDR16_LO
:
3244 case R_PPC_EMB_NADDR16_HI
:
3245 case R_PPC_EMB_NADDR16_HA
:
3248 bad_shared_reloc (abfd
, r_type
);
3254 case R_PPC_PLTREL24
:
3255 case R_PPC_PLTREL32
:
3256 case R_PPC_PLT16_LO
:
3257 case R_PPC_PLT16_HI
:
3258 case R_PPC_PLT16_HA
:
3260 fprintf (stderr
, "Reloc requires a PLT entry\n");
3262 /* This symbol requires a procedure linkage table entry. We
3263 actually build the entry in finish_dynamic_symbol,
3264 because this might be a case of linking PIC code without
3265 linking in any dynamic objects, in which case we don't
3266 need to generate a procedure linkage table after all. */
3270 /* It does not make sense to have a procedure linkage
3271 table entry for a local symbol. */
3272 (*_bfd_error_handler
) (_("%s(%s+0x%lx): %s reloc against "
3274 bfd_archive_filename (abfd
),
3276 (long) rel
->r_offset
,
3277 ppc_elf_howto_table
[r_type
]->name
);
3278 bfd_set_error (bfd_error_bad_value
);
3282 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
3286 /* The following relocations don't need to propagate the
3287 relocation if linking a shared object since they are
3288 section relative. */
3290 case R_PPC_SECTOFF_LO
:
3291 case R_PPC_SECTOFF_HI
:
3292 case R_PPC_SECTOFF_HA
:
3293 case R_PPC_DTPREL16
:
3294 case R_PPC_DTPREL16_LO
:
3295 case R_PPC_DTPREL16_HI
:
3296 case R_PPC_DTPREL16_HA
:
3300 /* This are just markers. */
3302 case R_PPC_EMB_MRKREF
:
3307 /* These should only appear in dynamic objects. */
3309 case R_PPC_GLOB_DAT
:
3310 case R_PPC_JMP_SLOT
:
3311 case R_PPC_RELATIVE
:
3314 /* These aren't handled yet. We'll report an error later. */
3316 case R_PPC_EMB_RELSEC16
:
3317 case R_PPC_EMB_RELST_LO
:
3318 case R_PPC_EMB_RELST_HI
:
3319 case R_PPC_EMB_RELST_HA
:
3320 case R_PPC_EMB_BIT_FLD
:
3323 /* This refers only to functions defined in the shared library. */
3324 case R_PPC_LOCAL24PC
:
3327 /* This relocation describes the C++ object vtable hierarchy.
3328 Reconstruct it for later use during GC. */
3329 case R_PPC_GNU_VTINHERIT
:
3330 if (!_bfd_elf32_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3334 /* This relocation describes which C++ vtable entries are actually
3335 used. Record for later use during GC. */
3336 case R_PPC_GNU_VTENTRY
:
3337 if (!_bfd_elf32_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3341 /* We shouldn't really be seeing these. */
3344 info
->flags
|= DF_STATIC_TLS
;
3348 case R_PPC_DTPMOD32
:
3349 case R_PPC_DTPREL32
:
3353 case R_PPC_TPREL16_LO
:
3354 case R_PPC_TPREL16_HI
:
3355 case R_PPC_TPREL16_HA
:
3357 info
->flags
|= DF_STATIC_TLS
;
3360 /* When creating a shared object, we must copy these
3361 relocs into the output file. We create a reloc
3362 section in dynobj and make room for the reloc. */
3365 case R_PPC_REL14_BRTAKEN
:
3366 case R_PPC_REL14_BRNTAKEN
:
3369 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3376 case R_PPC_ADDR16_LO
:
3377 case R_PPC_ADDR16_HI
:
3378 case R_PPC_ADDR16_HA
:
3380 case R_PPC_ADDR14_BRTAKEN
:
3381 case R_PPC_ADDR14_BRNTAKEN
:
3384 if (h
!= NULL
&& !info
->shared
)
3386 /* We may need a plt entry if the symbol turns out to be
3387 a function defined in a dynamic object. */
3390 /* We may need a copy reloc too. */
3391 h
->elf_link_hash_flags
|= ELF_LINK_NON_GOT_REF
;
3395 /* If we are creating a shared library, and this is a reloc
3396 against a global symbol, or a non PC relative reloc
3397 against a local symbol, then we need to copy the reloc
3398 into the shared library. However, if we are linking with
3399 -Bsymbolic, we do not need to copy a reloc against a
3400 global symbol which is defined in an object we are
3401 including in the link (i.e., DEF_REGULAR is set). At
3402 this point we have not seen all the input files, so it is
3403 possible that DEF_REGULAR is not set now but will be set
3404 later (it is never cleared). In case of a weak definition,
3405 DEF_REGULAR may be cleared later by a strong definition in
3406 a shared library. We account for that possibility below by
3407 storing information in the dyn_relocs field of the hash
3408 table entry. A similar situation occurs when creating
3409 shared libraries and symbol visibility changes render the
3412 If on the other hand, we are creating an executable, we
3413 may need to keep relocations for symbols satisfied by a
3414 dynamic library if we manage to avoid copy relocs for the
3417 && (MUST_BE_DYN_RELOC (r_type
)
3419 && (! info
->symbolic
3420 || h
->root
.type
== bfd_link_hash_defweak
3421 || (h
->elf_link_hash_flags
3422 & ELF_LINK_HASH_DEF_REGULAR
) == 0))))
3423 || (ELIMINATE_COPY_RELOCS
3425 && (sec
->flags
& SEC_ALLOC
) != 0
3427 && (h
->root
.type
== bfd_link_hash_defweak
3428 || (h
->elf_link_hash_flags
3429 & ELF_LINK_HASH_DEF_REGULAR
) == 0)))
3431 struct ppc_elf_dyn_relocs
*p
;
3432 struct ppc_elf_dyn_relocs
**head
;
3436 "ppc_elf_check_relocs needs to "
3437 "create relocation for %s\n",
3438 (h
&& h
->root
.root
.string
3439 ? h
->root
.root
.string
: "<unknown>"));
3445 name
= (bfd_elf_string_from_elf_section
3447 elf_elfheader (abfd
)->e_shstrndx
,
3448 elf_section_data (sec
)->rel_hdr
.sh_name
));
3452 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
3453 && strcmp (bfd_get_section_name (abfd
, sec
),
3456 sreloc
= bfd_get_section_by_name (htab
->elf
.dynobj
, name
);
3461 sreloc
= bfd_make_section (htab
->elf
.dynobj
, name
);
3462 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3463 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3464 if ((sec
->flags
& SEC_ALLOC
) != 0)
3465 flags
|= SEC_ALLOC
| SEC_LOAD
;
3467 || ! bfd_set_section_flags (htab
->elf
.dynobj
,
3469 || ! bfd_set_section_alignment (htab
->elf
.dynobj
,
3473 elf_section_data (sec
)->sreloc
= sreloc
;
3476 /* If this is a global symbol, we count the number of
3477 relocations we need for this symbol. */
3480 head
= &ppc_elf_hash_entry (h
)->dyn_relocs
;
3484 /* Track dynamic relocs needed for local syms too.
3485 We really need local syms available to do this
3489 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
3494 head
= ((struct ppc_elf_dyn_relocs
**)
3495 &elf_section_data (s
)->local_dynrel
);
3499 if (p
== NULL
|| p
->sec
!= sec
)
3501 p
= bfd_alloc (htab
->elf
.dynobj
, sizeof *p
);
3512 if (!MUST_BE_DYN_RELOC (r_type
))
3523 /* Return the section that should be marked against GC for a given
3527 ppc_elf_gc_mark_hook (asection
*sec
,
3528 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3529 Elf_Internal_Rela
*rel
,
3530 struct elf_link_hash_entry
*h
,
3531 Elf_Internal_Sym
*sym
)
3535 switch (ELF32_R_TYPE (rel
->r_info
))
3537 case R_PPC_GNU_VTINHERIT
:
3538 case R_PPC_GNU_VTENTRY
:
3542 switch (h
->root
.type
)
3544 case bfd_link_hash_defined
:
3545 case bfd_link_hash_defweak
:
3546 return h
->root
.u
.def
.section
;
3548 case bfd_link_hash_common
:
3549 return h
->root
.u
.c
.p
->section
;
3557 return bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
3562 /* Update the got, plt and dynamic reloc reference counts for the
3563 section being removed. */
3566 ppc_elf_gc_sweep_hook (bfd
*abfd
,
3567 struct bfd_link_info
*info
,
3569 const Elf_Internal_Rela
*relocs
)
3571 struct ppc_elf_link_hash_table
*htab
;
3572 Elf_Internal_Shdr
*symtab_hdr
;
3573 struct elf_link_hash_entry
**sym_hashes
;
3574 bfd_signed_vma
*local_got_refcounts
;
3575 const Elf_Internal_Rela
*rel
, *relend
;
3577 elf_section_data (sec
)->local_dynrel
= NULL
;
3579 htab
= ppc_elf_hash_table (info
);
3580 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3581 sym_hashes
= elf_sym_hashes (abfd
);
3582 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3584 relend
= relocs
+ sec
->reloc_count
;
3585 for (rel
= relocs
; rel
< relend
; rel
++)
3587 unsigned long r_symndx
;
3588 enum elf_ppc_reloc_type r_type
;
3589 struct elf_link_hash_entry
*h
= NULL
;
3591 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3592 if (r_symndx
>= symtab_hdr
->sh_info
)
3594 struct ppc_elf_dyn_relocs
**pp
, *p
;
3595 struct ppc_elf_link_hash_entry
*eh
;
3597 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3598 eh
= (struct ppc_elf_link_hash_entry
*) h
;
3600 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
3603 /* Everything must go for SEC. */
3609 r_type
= ELF32_R_TYPE (rel
->r_info
);
3612 case R_PPC_GOT_TLSLD16
:
3613 case R_PPC_GOT_TLSLD16_LO
:
3614 case R_PPC_GOT_TLSLD16_HI
:
3615 case R_PPC_GOT_TLSLD16_HA
:
3616 htab
->tlsld_got
.refcount
-= 1;
3619 case R_PPC_GOT_TLSGD16
:
3620 case R_PPC_GOT_TLSGD16_LO
:
3621 case R_PPC_GOT_TLSGD16_HI
:
3622 case R_PPC_GOT_TLSGD16_HA
:
3623 case R_PPC_GOT_TPREL16
:
3624 case R_PPC_GOT_TPREL16_LO
:
3625 case R_PPC_GOT_TPREL16_HI
:
3626 case R_PPC_GOT_TPREL16_HA
:
3627 case R_PPC_GOT_DTPREL16
:
3628 case R_PPC_GOT_DTPREL16_LO
:
3629 case R_PPC_GOT_DTPREL16_HI
:
3630 case R_PPC_GOT_DTPREL16_HA
:
3632 case R_PPC_GOT16_LO
:
3633 case R_PPC_GOT16_HI
:
3634 case R_PPC_GOT16_HA
:
3637 if (h
->got
.refcount
> 0)
3640 else if (local_got_refcounts
!= NULL
)
3642 if (local_got_refcounts
[r_symndx
] > 0)
3643 local_got_refcounts
[r_symndx
]--;
3649 case R_PPC_REL14_BRTAKEN
:
3650 case R_PPC_REL14_BRNTAKEN
:
3653 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3660 case R_PPC_ADDR16_LO
:
3661 case R_PPC_ADDR16_HI
:
3662 case R_PPC_ADDR16_HA
:
3664 case R_PPC_ADDR14_BRTAKEN
:
3665 case R_PPC_ADDR14_BRNTAKEN
:
3669 case R_PPC_PLTREL24
:
3670 case R_PPC_PLT16_LO
:
3671 case R_PPC_PLT16_HI
:
3672 case R_PPC_PLT16_HA
:
3675 if (h
->plt
.refcount
> 0)
3687 /* Set htab->tls_sec and htab->tls_get_addr. */
3690 ppc_elf_tls_setup (bfd
*obfd
, struct bfd_link_info
*info
)
3693 struct ppc_elf_link_hash_table
*htab
;
3695 htab
= ppc_elf_hash_table (info
);
3696 htab
->tls_get_addr
= elf_link_hash_lookup (&htab
->elf
, "__tls_get_addr",
3697 FALSE
, FALSE
, TRUE
);
3699 for (tls
= obfd
->sections
; tls
!= NULL
; tls
= tls
->next
)
3700 if ((tls
->flags
& (SEC_THREAD_LOCAL
| SEC_LOAD
))
3701 == (SEC_THREAD_LOCAL
| SEC_LOAD
))
3703 htab
->tls_sec
= tls
;
3708 /* Run through all the TLS relocs looking for optimization
3712 ppc_elf_tls_optimize (bfd
*obfd ATTRIBUTE_UNUSED
,
3713 struct bfd_link_info
*info
)
3717 struct ppc_elf_link_hash_table
*htab
;
3719 if (info
->relocateable
|| info
->shared
)
3722 htab
= ppc_elf_hash_table (info
);
3723 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
3725 Elf_Internal_Sym
*locsyms
= NULL
;
3726 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
3728 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
3729 if (sec
->has_tls_reloc
&& !bfd_is_abs_section (sec
->output_section
))
3731 Elf_Internal_Rela
*relstart
, *rel
, *relend
;
3732 int expecting_tls_get_addr
;
3734 /* Read the relocations. */
3735 relstart
= _bfd_elf_link_read_relocs (ibfd
, sec
, NULL
, NULL
,
3737 if (relstart
== NULL
)
3740 expecting_tls_get_addr
= 0;
3741 relend
= relstart
+ sec
->reloc_count
;
3742 for (rel
= relstart
; rel
< relend
; rel
++)
3744 enum elf_ppc_reloc_type r_type
;
3745 unsigned long r_symndx
;
3746 struct elf_link_hash_entry
*h
= NULL
;
3748 char tls_set
, tls_clear
;
3749 bfd_boolean is_local
;
3751 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3752 if (r_symndx
>= symtab_hdr
->sh_info
)
3754 struct elf_link_hash_entry
**sym_hashes
;
3756 sym_hashes
= elf_sym_hashes (ibfd
);
3757 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3758 while (h
->root
.type
== bfd_link_hash_indirect
3759 || h
->root
.type
== bfd_link_hash_warning
)
3760 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3765 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
))
3768 r_type
= ELF32_R_TYPE (rel
->r_info
);
3771 case R_PPC_GOT_TLSLD16
:
3772 case R_PPC_GOT_TLSLD16_LO
:
3773 case R_PPC_GOT_TLSLD16_HI
:
3774 case R_PPC_GOT_TLSLD16_HA
:
3775 /* These relocs should never be against a symbol
3776 defined in a shared lib. Leave them alone if
3777 that turns out to be the case. */
3778 expecting_tls_get_addr
= 0;
3779 htab
->tlsld_got
.refcount
-= 1;
3786 expecting_tls_get_addr
= 1;
3789 case R_PPC_GOT_TLSGD16
:
3790 case R_PPC_GOT_TLSGD16_LO
:
3791 case R_PPC_GOT_TLSGD16_HI
:
3792 case R_PPC_GOT_TLSGD16_HA
:
3798 tls_set
= TLS_TLS
| TLS_TPRELGD
;
3800 expecting_tls_get_addr
= 1;
3803 case R_PPC_GOT_TPREL16
:
3804 case R_PPC_GOT_TPREL16_LO
:
3805 case R_PPC_GOT_TPREL16_HI
:
3806 case R_PPC_GOT_TPREL16_HA
:
3807 expecting_tls_get_addr
= 0;
3812 tls_clear
= TLS_TPREL
;
3819 case R_PPC_REL14_BRTAKEN
:
3820 case R_PPC_REL14_BRNTAKEN
:
3822 if (expecting_tls_get_addr
3824 && h
== htab
->tls_get_addr
)
3826 if (h
->plt
.refcount
> 0)
3827 h
->plt
.refcount
-= 1;
3829 expecting_tls_get_addr
= 0;
3833 expecting_tls_get_addr
= 0;
3841 /* We managed to get rid of a got entry. */
3842 if (h
->got
.refcount
> 0)
3843 h
->got
.refcount
-= 1;
3845 tls_mask
= &ppc_elf_hash_entry (h
)->tls_mask
;
3849 Elf_Internal_Sym
*sym
;
3850 bfd_signed_vma
*lgot_refs
;
3853 if (locsyms
== NULL
)
3855 locsyms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
3856 if (locsyms
== NULL
)
3857 locsyms
= bfd_elf_get_elf_syms (ibfd
, symtab_hdr
,
3858 symtab_hdr
->sh_info
,
3859 0, NULL
, NULL
, NULL
);
3860 if (locsyms
== NULL
)
3862 if (elf_section_data (sec
)->relocs
!= relstart
)
3867 sym
= locsyms
+ r_symndx
;
3868 lgot_refs
= elf_local_got_refcounts (ibfd
);
3869 if (lgot_refs
== NULL
)
3873 /* We managed to get rid of a got entry. */
3874 if (lgot_refs
[r_symndx
] > 0)
3875 lgot_refs
[r_symndx
] -= 1;
3877 lgot_masks
= (char *) (lgot_refs
+ symtab_hdr
->sh_info
);
3878 tls_mask
= &lgot_masks
[r_symndx
];
3881 *tls_mask
|= tls_set
;
3882 *tls_mask
&= ~tls_clear
;
3885 if (elf_section_data (sec
)->relocs
!= relstart
)
3890 && (symtab_hdr
->contents
!= (unsigned char *) locsyms
))
3892 if (!info
->keep_memory
)
3895 symtab_hdr
->contents
= (unsigned char *) locsyms
;
3901 /* Hook called by the linker routine which adds symbols from an object
3902 file. We use it to put .comm items in .sbss, and not .bss. */
3905 ppc_elf_add_symbol_hook (bfd
*abfd
,
3906 struct bfd_link_info
*info
,
3907 const Elf_Internal_Sym
*sym
,
3908 const char **namep ATTRIBUTE_UNUSED
,
3909 flagword
*flagsp ATTRIBUTE_UNUSED
,
3913 if (sym
->st_shndx
== SHN_COMMON
3914 && !info
->relocateable
3915 && sym
->st_size
<= elf_gp_size (abfd
)
3916 && info
->hash
->creator
->flavour
== bfd_target_elf_flavour
)
3918 /* Common symbols less than or equal to -G nn bytes are automatically
3920 elf_linker_section_t
*sdata
3921 = ppc_elf_create_linker_section (abfd
, info
, LINKER_SECTION_SDATA
);
3923 if (!sdata
->bss_section
)
3927 /* We don't go through bfd_make_section, because we don't
3928 want to attach this common section to DYNOBJ. The linker
3929 will move the symbols to the appropriate output section
3930 when it defines common symbols. */
3931 amt
= sizeof (asection
);
3932 sdata
->bss_section
= bfd_zalloc (abfd
, amt
);
3933 if (sdata
->bss_section
== NULL
)
3935 sdata
->bss_section
->name
= sdata
->bss_name
;
3936 sdata
->bss_section
->flags
= SEC_IS_COMMON
;
3937 sdata
->bss_section
->output_section
= sdata
->bss_section
;
3938 amt
= sizeof (asymbol
);
3939 sdata
->bss_section
->symbol
= bfd_zalloc (abfd
, amt
);
3940 amt
= sizeof (asymbol
*);
3941 sdata
->bss_section
->symbol_ptr_ptr
= bfd_zalloc (abfd
, amt
);
3942 if (sdata
->bss_section
->symbol
== NULL
3943 || sdata
->bss_section
->symbol_ptr_ptr
== NULL
)
3945 sdata
->bss_section
->symbol
->name
= sdata
->bss_name
;
3946 sdata
->bss_section
->symbol
->flags
= BSF_SECTION_SYM
;
3947 sdata
->bss_section
->symbol
->section
= sdata
->bss_section
;
3948 *sdata
->bss_section
->symbol_ptr_ptr
= sdata
->bss_section
->symbol
;
3951 *secp
= sdata
->bss_section
;
3952 *valp
= sym
->st_size
;
3958 /* Finish up dynamic symbol handling. We set the contents of various
3959 dynamic sections here. */
3962 ppc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3963 struct bfd_link_info
*info
,
3964 struct elf_link_hash_entry
*h
,
3965 Elf_Internal_Sym
*sym
)
3967 struct ppc_elf_link_hash_table
*htab
;
3970 fprintf (stderr
, "ppc_elf_finish_dynamic_symbol called for %s",
3971 h
->root
.root
.string
);
3974 htab
= ppc_elf_hash_table (info
);
3975 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
);
3977 if (h
->plt
.offset
!= (bfd_vma
) -1)
3979 Elf_Internal_Rela rela
;
3981 bfd_vma reloc_index
;
3984 fprintf (stderr
, ", plt_offset = %d", h
->plt
.offset
);
3987 /* This symbol has an entry in the procedure linkage table. Set
3990 BFD_ASSERT (h
->dynindx
!= -1);
3991 BFD_ASSERT (htab
->plt
!= NULL
&& htab
->relplt
!= NULL
);
3993 /* We don't need to fill in the .plt. The ppc dynamic linker
3996 /* Fill in the entry in the .rela.plt section. */
3997 rela
.r_offset
= (htab
->plt
->output_section
->vma
3998 + htab
->plt
->output_offset
4000 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_JMP_SLOT
);
4003 reloc_index
= (h
->plt
.offset
- PLT_INITIAL_ENTRY_SIZE
) / PLT_SLOT_SIZE
;
4004 if (reloc_index
> PLT_NUM_SINGLE_ENTRIES
)
4005 reloc_index
-= (reloc_index
- PLT_NUM_SINGLE_ENTRIES
) / 2;
4006 loc
= (htab
->relplt
->contents
4007 + reloc_index
* sizeof (Elf32_External_Rela
));
4008 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4010 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4012 /* Mark the symbol as undefined, rather than as defined in
4013 the .plt section. Leave the value alone. */
4014 sym
->st_shndx
= SHN_UNDEF
;
4015 /* If the symbol is weak, we do need to clear the value.
4016 Otherwise, the PLT entry would provide a definition for
4017 the symbol even if the symbol wasn't defined anywhere,
4018 and so the symbol would never be NULL. */
4019 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR_NONWEAK
)
4025 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_COPY
) != 0)
4028 Elf_Internal_Rela rela
;
4031 /* This symbols needs a copy reloc. Set it up. */
4034 fprintf (stderr
, ", copy");
4037 BFD_ASSERT (h
->dynindx
!= -1);
4039 if (h
->size
<= elf_gp_size (htab
->elf
.dynobj
))
4043 BFD_ASSERT (s
!= NULL
);
4045 rela
.r_offset
= (h
->root
.u
.def
.value
4046 + h
->root
.u
.def
.section
->output_section
->vma
4047 + h
->root
.u
.def
.section
->output_offset
);
4048 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_PPC_COPY
);
4050 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4051 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4055 fprintf (stderr
, "\n");
4058 /* Mark some specially defined symbols as absolute. */
4059 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4060 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4061 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4062 sym
->st_shndx
= SHN_ABS
;
4067 /* Finish up the dynamic sections. */
4070 ppc_elf_finish_dynamic_sections (bfd
*output_bfd
,
4071 struct bfd_link_info
*info
)
4074 struct ppc_elf_link_hash_table
*htab
;
4077 fprintf (stderr
, "ppc_elf_finish_dynamic_sections called\n");
4080 htab
= ppc_elf_hash_table (info
);
4081 sdyn
= bfd_get_section_by_name (htab
->elf
.dynobj
, ".dynamic");
4083 if (htab
->elf
.dynamic_sections_created
)
4085 Elf32_External_Dyn
*dyncon
, *dynconend
;
4087 BFD_ASSERT (htab
->plt
!= NULL
&& sdyn
!= NULL
);
4089 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4090 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
4091 for (; dyncon
< dynconend
; dyncon
++)
4093 Elf_Internal_Dyn dyn
;
4096 bfd_elf32_swap_dyn_in (htab
->elf
.dynobj
, dyncon
, &dyn
);
4102 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4106 dyn
.d_un
.d_val
= htab
->relplt
->_raw_size
;
4111 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4118 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4122 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
4123 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
4126 unsigned char *contents
= htab
->got
->contents
;
4127 bfd_put_32 (output_bfd
, 0x4e800021 /* blrl */, contents
);
4130 bfd_put_32 (output_bfd
, 0, contents
+ 4);
4132 bfd_put_32 (output_bfd
,
4133 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
4136 elf_section_data (htab
->got
->output_section
)->this_hdr
.sh_entsize
= 4;
4142 /* The RELOCATE_SECTION function is called by the ELF backend linker
4143 to handle the relocations for a section.
4145 The relocs are always passed as Rela structures; if the section
4146 actually uses Rel structures, the r_addend field will always be
4149 This function is responsible for adjust the section contents as
4150 necessary, and (if using Rela relocs and generating a
4151 relocateable output file) adjusting the reloc addend as
4154 This function does not have to worry about setting the reloc
4155 address or the reloc symbol index.
4157 LOCAL_SYMS is a pointer to the swapped in local symbols.
4159 LOCAL_SECTIONS is an array giving the section in the input file
4160 corresponding to the st_shndx field of each local symbol.
4162 The global hash table entry for the global symbols can be found
4163 via elf_sym_hashes (input_bfd).
4165 When generating relocateable output, this function must handle
4166 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4167 going to be the section symbol corresponding to the output
4168 section, which means that the addend must be adjusted
4172 ppc_elf_relocate_section (bfd
*output_bfd
,
4173 struct bfd_link_info
*info
,
4175 asection
*input_section
,
4177 Elf_Internal_Rela
*relocs
,
4178 Elf_Internal_Sym
*local_syms
,
4179 asection
**local_sections
)
4181 Elf_Internal_Shdr
*symtab_hdr
;
4182 struct elf_link_hash_entry
**sym_hashes
;
4183 struct ppc_elf_link_hash_table
*htab
;
4184 Elf_Internal_Rela
*rel
;
4185 Elf_Internal_Rela
*relend
;
4186 Elf_Internal_Rela outrel
;
4188 asection
*sreloc
= NULL
;
4189 bfd_vma
*local_got_offsets
;
4190 bfd_boolean ret
= TRUE
;
4193 fprintf (stderr
, "ppc_elf_relocate_section called for %s section %s, "
4194 "%ld relocations%s\n",
4195 bfd_archive_filename (input_bfd
),
4196 bfd_section_name(input_bfd
, input_section
),
4197 (long) input_section
->reloc_count
,
4198 (info
->relocateable
) ? " (relocatable)" : "");
4201 if (info
->relocateable
)
4204 if (!ppc_elf_howto_table
[R_PPC_ADDR32
])
4205 /* Initialize howto table if needed. */
4206 ppc_elf_howto_init ();
4208 htab
= ppc_elf_hash_table (info
);
4209 local_got_offsets
= elf_local_got_offsets (input_bfd
);
4210 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4211 sym_hashes
= elf_sym_hashes (input_bfd
);
4213 relend
= relocs
+ input_section
->reloc_count
;
4214 for (; rel
< relend
; rel
++)
4216 enum elf_ppc_reloc_type r_type
;
4218 bfd_reloc_status_type r
;
4219 Elf_Internal_Sym
*sym
;
4221 struct elf_link_hash_entry
*h
;
4222 const char *sym_name
;
4223 reloc_howto_type
*howto
;
4224 unsigned long r_symndx
;
4226 bfd_vma branch_bit
, insn
, from
;
4227 bfd_boolean unresolved_reloc
;
4229 unsigned int tls_type
, tls_mask
, tls_gd
;
4231 r_type
= ELF32_R_TYPE (rel
->r_info
);
4235 unresolved_reloc
= FALSE
;
4237 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4238 if (r_symndx
< symtab_hdr
->sh_info
)
4240 sym
= local_syms
+ r_symndx
;
4241 sec
= local_sections
[r_symndx
];
4242 sym_name
= bfd_elf_local_sym_name (input_bfd
, sym
);
4244 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sec
, rel
);
4248 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4249 while (h
->root
.type
== bfd_link_hash_indirect
4250 || h
->root
.type
== bfd_link_hash_warning
)
4251 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4252 sym_name
= h
->root
.root
.string
;
4255 if (h
->root
.type
== bfd_link_hash_defined
4256 || h
->root
.type
== bfd_link_hash_defweak
)
4258 sec
= h
->root
.u
.def
.section
;
4259 /* Set a flag that will be cleared later if we find a
4260 relocation value for this symbol. output_section
4261 is typically NULL for symbols satisfied by a shared
4263 if (sec
->output_section
== NULL
)
4264 unresolved_reloc
= TRUE
;
4266 relocation
= (h
->root
.u
.def
.value
4267 + sec
->output_section
->vma
4268 + sec
->output_offset
);
4270 else if (h
->root
.type
== bfd_link_hash_undefweak
)
4272 else if (info
->shared
4273 && !info
->no_undefined
4274 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4278 if (! ((*info
->callbacks
->undefined_symbol
)
4279 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
4280 rel
->r_offset
, (!info
->shared
4281 || info
->no_undefined
4282 || ELF_ST_VISIBILITY (h
->other
)))))
4288 /* TLS optimizations. Replace instruction sequences and relocs
4289 based on information we collected in tls_optimize. We edit
4290 RELOCS so that --emit-relocs will output something sensible
4291 for the final instruction stream. */
4294 if (IS_PPC_TLS_RELOC (r_type
))
4297 tls_mask
= ((struct ppc_elf_link_hash_entry
*) h
)->tls_mask
;
4298 else if (local_got_offsets
!= NULL
)
4301 lgot_masks
= (char *) (local_got_offsets
+ symtab_hdr
->sh_info
);
4302 tls_mask
= lgot_masks
[r_symndx
];
4306 /* Ensure reloc mapping code below stays sane. */
4307 if ((R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TLSGD16
& 3)
4308 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TLSGD16_LO
& 3)
4309 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TLSGD16_HI
& 3)
4310 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TLSGD16_HA
& 3)
4311 || (R_PPC_GOT_TLSLD16
& 3) != (R_PPC_GOT_TPREL16
& 3)
4312 || (R_PPC_GOT_TLSLD16_LO
& 3) != (R_PPC_GOT_TPREL16_LO
& 3)
4313 || (R_PPC_GOT_TLSLD16_HI
& 3) != (R_PPC_GOT_TPREL16_HI
& 3)
4314 || (R_PPC_GOT_TLSLD16_HA
& 3) != (R_PPC_GOT_TPREL16_HA
& 3))
4321 case R_PPC_GOT_TPREL16
:
4322 case R_PPC_GOT_TPREL16_LO
:
4324 && (tls_mask
& TLS_TPREL
) == 0)
4327 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
- 2);
4329 insn
|= 0x3c020000; /* addis 0,2,0 */
4330 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
- 2);
4331 r_type
= R_PPC_TPREL16_HA
;
4332 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
4338 && (tls_mask
& TLS_TPREL
) == 0)
4341 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
4342 if ((insn
& ((31 << 26) | (31 << 11)))
4343 == ((31 << 26) | (2 << 11)))
4344 rtra
= insn
& ((1 << 26) - (1 << 16));
4345 else if ((insn
& ((31 << 26) | (31 << 16)))
4346 == ((31 << 26) | (2 << 16)))
4347 rtra
= (insn
& (31 << 21)) | ((insn
& (31 << 11)) << 5);
4350 if ((insn
& ((1 << 11) - (1 << 1))) == 266 << 1)
4353 else if ((insn
& (31 << 1)) == 23 << 1
4354 && ((insn
& (31 << 6)) < 14 << 6
4355 || ((insn
& (31 << 6)) >= 16 << 6
4356 && (insn
& (31 << 6)) < 24 << 6)))
4357 /* load and store indexed -> dform. */
4358 insn
= (32 | ((insn
>> 6) & 31)) << 26;
4359 else if ((insn
& (31 << 1)) == 21 << 1
4360 && (insn
& (0x1a << 6)) == 0)
4361 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
4362 insn
= (((58 | ((insn
>> 6) & 4)) << 26)
4363 | ((insn
>> 6) & 1));
4364 else if ((insn
& (31 << 1)) == 21 << 1
4365 && (insn
& ((1 << 11) - (1 << 1))) == 341 << 1)
4367 insn
= (58 << 26) | 2;
4371 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
4372 r_type
= R_PPC_TPREL16_LO
;
4373 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
4374 /* Was PPC_TLS which sits on insn boundary, now
4375 PPC_TPREL16_LO which is at insn+2. */
4380 case R_PPC_GOT_TLSGD16_HI
:
4381 case R_PPC_GOT_TLSGD16_HA
:
4382 tls_gd
= TLS_TPRELGD
;
4383 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
4387 case R_PPC_GOT_TLSLD16_HI
:
4388 case R_PPC_GOT_TLSLD16_HA
:
4389 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
4392 if ((tls_mask
& tls_gd
) != 0)
4393 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
4394 + R_PPC_GOT_TPREL16
);
4397 bfd_put_32 (output_bfd
, NOP
, contents
+ rel
->r_offset
);
4399 r_type
= R_PPC_NONE
;
4401 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
4405 case R_PPC_GOT_TLSGD16
:
4406 case R_PPC_GOT_TLSGD16_LO
:
4407 tls_gd
= TLS_TPRELGD
;
4408 if (tls_mask
!= 0 && (tls_mask
& TLS_GD
) == 0)
4409 goto tls_get_addr_check
;
4412 case R_PPC_GOT_TLSLD16
:
4413 case R_PPC_GOT_TLSLD16_LO
:
4414 if (tls_mask
!= 0 && (tls_mask
& TLS_LD
) == 0)
4417 if (rel
+ 1 < relend
)
4419 enum elf_ppc_reloc_type r_type2
;
4420 unsigned long r_symndx2
;
4421 struct elf_link_hash_entry
*h2
;
4422 bfd_vma insn1
, insn2
;
4425 /* The next instruction should be a call to
4426 __tls_get_addr. Peek at the reloc to be sure. */
4427 r_type2
= ELF32_R_TYPE (rel
[1].r_info
);
4428 r_symndx2
= ELF32_R_SYM (rel
[1].r_info
);
4429 if (r_symndx2
< symtab_hdr
->sh_info
4430 || (r_type2
!= R_PPC_REL14
4431 && r_type2
!= R_PPC_REL14_BRTAKEN
4432 && r_type2
!= R_PPC_REL14_BRNTAKEN
4433 && r_type2
!= R_PPC_REL24
4434 && r_type2
!= R_PPC_PLTREL24
))
4437 h2
= sym_hashes
[r_symndx2
- symtab_hdr
->sh_info
];
4438 while (h2
->root
.type
== bfd_link_hash_indirect
4439 || h2
->root
.type
== bfd_link_hash_warning
)
4440 h2
= (struct elf_link_hash_entry
*) h2
->root
.u
.i
.link
;
4441 if (h2
== NULL
|| h2
!= htab
->tls_get_addr
)
4444 /* OK, it checks out. Replace the call. */
4445 offset
= rel
[1].r_offset
;
4446 insn1
= bfd_get_32 (output_bfd
,
4447 contents
+ rel
->r_offset
- 2);
4448 if ((tls_mask
& tls_gd
) != 0)
4451 insn1
&= (1 << 26) - 1;
4452 insn1
|= 32 << 26; /* lwz */
4453 insn2
= 0x7c631214; /* add 3,3,2 */
4454 rel
[1].r_info
= ELF32_R_INFO (r_symndx2
, R_PPC_NONE
);
4455 r_type
= (((r_type
- (R_PPC_GOT_TLSGD16
& 3)) & 3)
4456 + R_PPC_GOT_TPREL16
);
4457 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
4462 insn1
= 0x3c620000; /* addis 3,2,0 */
4463 insn2
= 0x38630000; /* addi 3,3,0 */
4466 /* Was an LD reloc. */
4468 rel
->r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
4469 rel
[1].r_addend
= htab
->tls_sec
->vma
+ DTP_OFFSET
;
4471 r_type
= R_PPC_TPREL16_HA
;
4472 rel
->r_info
= ELF32_R_INFO (r_symndx
, r_type
);
4473 rel
[1].r_info
= ELF32_R_INFO (r_symndx
,
4475 rel
[1].r_offset
+= 2;
4477 bfd_put_32 (output_bfd
, insn1
, contents
+ rel
->r_offset
- 2);
4478 bfd_put_32 (output_bfd
, insn2
, contents
+ offset
);
4481 /* We changed the symbol on an LD reloc. Start over
4482 in order to get h, sym, sec etc. right. */
4491 /* Handle other relocations that tweak non-addend part of insn. */
4498 /* Branch taken prediction relocations. */
4499 case R_PPC_ADDR14_BRTAKEN
:
4500 case R_PPC_REL14_BRTAKEN
:
4501 branch_bit
= BRANCH_PREDICT_BIT
;
4504 /* Branch not taken predicition relocations. */
4505 case R_PPC_ADDR14_BRNTAKEN
:
4506 case R_PPC_REL14_BRNTAKEN
:
4507 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
4508 insn
&= ~BRANCH_PREDICT_BIT
;
4511 from
= (rel
->r_offset
4512 + input_section
->output_offset
4513 + input_section
->output_section
->vma
);
4515 /* Invert 'y' bit if not the default. */
4516 if ((bfd_signed_vma
) (relocation
+ rel
->r_addend
- from
) < 0)
4517 insn
^= BRANCH_PREDICT_BIT
;
4519 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
4523 addend
= rel
->r_addend
;
4526 if (r_type
< R_PPC_max
)
4527 howto
= ppc_elf_howto_table
[r_type
];
4531 (*_bfd_error_handler
)
4532 (_("%s: unknown relocation type %d for symbol %s"),
4533 bfd_archive_filename (input_bfd
), (int) r_type
, sym_name
);
4535 bfd_set_error (bfd_error_bad_value
);
4541 case R_PPC_EMB_MRKREF
:
4542 case R_PPC_GNU_VTINHERIT
:
4543 case R_PPC_GNU_VTENTRY
:
4546 /* GOT16 relocations. Like an ADDR16 using the symbol's
4547 address in the GOT as relocation value instead of the
4548 symbol's value itself. Also, create a GOT entry for the
4549 symbol and put the symbol value there. */
4550 case R_PPC_GOT_TLSGD16
:
4551 case R_PPC_GOT_TLSGD16_LO
:
4552 case R_PPC_GOT_TLSGD16_HI
:
4553 case R_PPC_GOT_TLSGD16_HA
:
4554 tls_type
= TLS_TLS
| TLS_GD
;
4557 case R_PPC_GOT_TLSLD16
:
4558 case R_PPC_GOT_TLSLD16_LO
:
4559 case R_PPC_GOT_TLSLD16_HI
:
4560 case R_PPC_GOT_TLSLD16_HA
:
4561 tls_type
= TLS_TLS
| TLS_LD
;
4564 case R_PPC_GOT_TPREL16
:
4565 case R_PPC_GOT_TPREL16_LO
:
4566 case R_PPC_GOT_TPREL16_HI
:
4567 case R_PPC_GOT_TPREL16_HA
:
4568 tls_type
= TLS_TLS
| TLS_TPREL
;
4571 case R_PPC_GOT_DTPREL16
:
4572 case R_PPC_GOT_DTPREL16_LO
:
4573 case R_PPC_GOT_DTPREL16_HI
:
4574 case R_PPC_GOT_DTPREL16_HA
:
4575 tls_type
= TLS_TLS
| TLS_DTPREL
;
4579 case R_PPC_GOT16_LO
:
4580 case R_PPC_GOT16_HI
:
4581 case R_PPC_GOT16_HA
:
4584 /* Relocation is to the entry for this symbol in the global
4590 if (htab
->got
== NULL
)
4594 if (tls_type
== (TLS_TLS
| TLS_LD
)
4596 || !(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
)))
4597 offp
= &htab
->tlsld_got
.offset
;
4601 dyn
= htab
->elf
.dynamic_sections_created
;
4602 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
4604 && SYMBOL_REFERENCES_LOCAL (info
, h
)))
4605 /* This is actually a static link, or it is a
4606 -Bsymbolic link and the symbol is defined
4607 locally, or the symbol was forced to be local
4608 because of a version file. */
4613 unresolved_reloc
= FALSE
;
4615 offp
= &h
->got
.offset
;
4619 if (local_got_offsets
== NULL
)
4621 offp
= &local_got_offsets
[r_symndx
];
4624 /* The offset must always be a multiple of 4. We use the
4625 least significant bit to record whether we have already
4626 processed this entry. */
4632 unsigned int tls_m
= (tls_mask
4633 & (TLS_LD
| TLS_GD
| TLS_DTPREL
4634 | TLS_TPREL
| TLS_TPRELGD
));
4636 if (offp
== &htab
->tlsld_got
.offset
)
4639 || !(h
->elf_link_hash_flags
4640 & ELF_LINK_HASH_DEF_DYNAMIC
))
4643 /* We might have multiple got entries for this sym.
4644 Initialize them all. */
4649 if ((tls_m
& TLS_LD
) != 0)
4651 tls_ty
= TLS_TLS
| TLS_LD
;
4654 else if ((tls_m
& TLS_GD
) != 0)
4656 tls_ty
= TLS_TLS
| TLS_GD
;
4659 else if ((tls_m
& TLS_DTPREL
) != 0)
4661 tls_ty
= TLS_TLS
| TLS_DTPREL
;
4662 tls_m
&= ~TLS_DTPREL
;
4664 else if ((tls_m
& (TLS_TPREL
| TLS_TPRELGD
)) != 0)
4666 tls_ty
= TLS_TLS
| TLS_TPREL
;
4670 /* Generate relocs for the dynamic linker. */
4671 if ((info
->shared
|| indx
!= 0)
4673 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
4674 || h
->root
.type
!= bfd_link_hash_undefweak
))
4676 outrel
.r_offset
= (htab
->got
->output_section
->vma
4677 + htab
->got
->output_offset
4679 outrel
.r_addend
= 0;
4680 if (tls_ty
& (TLS_LD
| TLS_GD
))
4682 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPMOD32
);
4683 if (tls_ty
== (TLS_TLS
| TLS_GD
))
4685 loc
= htab
->relgot
->contents
;
4686 loc
+= (htab
->relgot
->reloc_count
++
4687 * sizeof (Elf32_External_Rela
));
4688 bfd_elf32_swap_reloca_out (output_bfd
,
4690 outrel
.r_offset
+= 4;
4692 = ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
4695 else if (tls_ty
== (TLS_TLS
| TLS_DTPREL
))
4696 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_DTPREL32
);
4697 else if (tls_ty
== (TLS_TLS
| TLS_TPREL
))
4698 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_TPREL32
);
4700 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_RELATIVE
);
4702 outrel
.r_info
= ELF32_R_INFO (indx
, R_PPC_GLOB_DAT
);
4705 outrel
.r_addend
+= relocation
;
4706 if (tls_ty
& (TLS_GD
| TLS_DTPREL
| TLS_TPREL
))
4707 outrel
.r_addend
-= htab
->tls_sec
->vma
;
4709 loc
= htab
->relgot
->contents
;
4710 loc
+= (htab
->relgot
->reloc_count
++
4711 * sizeof (Elf32_External_Rela
));
4712 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4715 /* Init the .got section contents if we're not
4716 emitting a reloc. */
4719 bfd_vma value
= relocation
;
4721 if (tls_ty
== (TLS_TLS
| TLS_LD
))
4723 else if (tls_ty
!= 0)
4725 value
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
4726 if (tls_ty
== (TLS_TLS
| TLS_TPREL
))
4727 value
+= DTP_OFFSET
- TP_OFFSET
;
4729 if (tls_ty
== (TLS_TLS
| TLS_GD
))
4731 bfd_put_32 (output_bfd
, value
,
4732 htab
->got
->contents
+ off
+ 4);
4736 bfd_put_32 (output_bfd
, value
,
4737 htab
->got
->contents
+ off
);
4741 if (tls_ty
& (TLS_LD
| TLS_GD
))
4750 if (off
>= (bfd_vma
) -2)
4753 if ((tls_type
& TLS_TLS
) != 0)
4755 if (tls_type
!= (TLS_TLS
| TLS_LD
))
4757 if ((tls_mask
& TLS_LD
) != 0
4759 || !(h
->elf_link_hash_flags
4760 & ELF_LINK_HASH_DEF_DYNAMIC
)))
4762 if (tls_type
!= (TLS_TLS
| TLS_GD
))
4764 if ((tls_mask
& TLS_GD
) != 0)
4766 if (tls_type
!= (TLS_TLS
| TLS_DTPREL
))
4768 if ((tls_mask
& TLS_DTPREL
) != 0)
4775 relocation
= htab
->got
->output_offset
+ off
- 4;
4777 /* Addends on got relocations don't make much sense.
4778 x+off@got is actually x@got+off, and since the got is
4779 generated by a hash table traversal, the value in the
4780 got at entry m+n bears little relation to the entry m. */
4782 (*_bfd_error_handler
)
4783 (_("%s(%s+0x%lx): non-zero addend on %s reloc against `%s'"),
4784 bfd_archive_filename (input_bfd
),
4785 bfd_get_section_name (input_bfd
, input_section
),
4786 (long) rel
->r_offset
,
4792 /* Relocations that need no special processing. */
4793 case R_PPC_LOCAL24PC
:
4794 /* It makes no sense to point a local relocation
4795 at a symbol not in this object. */
4796 if (unresolved_reloc
)
4798 if (! (*info
->callbacks
->undefined_symbol
) (info
,
4799 h
->root
.root
.string
,
4809 case R_PPC_DTPREL16
:
4810 case R_PPC_DTPREL16_LO
:
4811 case R_PPC_DTPREL16_HI
:
4812 case R_PPC_DTPREL16_HA
:
4813 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
4816 /* Relocations that may need to be propagated if this is a shared
4819 case R_PPC_TPREL16_LO
:
4820 case R_PPC_TPREL16_HI
:
4821 case R_PPC_TPREL16_HA
:
4822 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
4823 /* The TPREL16 relocs shouldn't really be used in shared
4824 libs as they will result in DT_TEXTREL being set, but
4825 support them anyway. */
4829 addend
-= htab
->tls_sec
->vma
+ TP_OFFSET
;
4832 case R_PPC_DTPREL32
:
4833 addend
-= htab
->tls_sec
->vma
+ DTP_OFFSET
;
4836 case R_PPC_DTPMOD32
:
4844 case R_PPC_REL14_BRTAKEN
:
4845 case R_PPC_REL14_BRNTAKEN
:
4846 /* If these relocations are not to a named symbol, they can be
4847 handled right here, no need to bother the dynamic linker. */
4849 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4850 || SYMBOL_REFERENCES_LOCAL (info
, h
))
4854 /* Relocations that always need to be propagated if this is a shared
4859 case R_PPC_ADDR16_LO
:
4860 case R_PPC_ADDR16_HI
:
4861 case R_PPC_ADDR16_HA
:
4863 case R_PPC_ADDR14_BRTAKEN
:
4864 case R_PPC_ADDR14_BRNTAKEN
:
4867 /* r_symndx will be zero only for relocs against symbols
4868 from removed linkonce sections, or sections discarded by
4877 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
4878 || h
->root
.type
!= bfd_link_hash_undefweak
)
4879 && (MUST_BE_DYN_RELOC (r_type
)
4881 && !SYMBOL_CALLS_LOCAL (info
, h
))))
4882 || (ELIMINATE_COPY_RELOCS
4884 && (input_section
->flags
& SEC_ALLOC
) != 0
4887 && (h
->elf_link_hash_flags
& ELF_LINK_NON_GOT_REF
) == 0
4888 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
4889 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0))
4894 fprintf (stderr
, "ppc_elf_relocate_section needs to "
4895 "create relocation for %s\n",
4896 (h
&& h
->root
.root
.string
4897 ? h
->root
.root
.string
: "<unknown>"));
4900 /* When generating a shared object, these relocations
4901 are copied into the output file to be resolved at run
4907 name
= (bfd_elf_string_from_elf_section
4909 elf_elfheader (input_bfd
)->e_shstrndx
,
4910 elf_section_data (input_section
)->rel_hdr
.sh_name
));
4914 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
4915 && strcmp (bfd_get_section_name (input_bfd
,
4919 sreloc
= bfd_get_section_by_name (htab
->elf
.dynobj
, name
);
4920 BFD_ASSERT (sreloc
!= NULL
);
4926 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
4928 if (outrel
.r_offset
== (bfd_vma
) -1
4929 || outrel
.r_offset
== (bfd_vma
) -2)
4930 skip
= (int) outrel
.r_offset
;
4931 outrel
.r_offset
+= (input_section
->output_section
->vma
4932 + input_section
->output_offset
);
4935 memset (&outrel
, 0, sizeof outrel
);
4937 && !SYMBOL_REFERENCES_LOCAL (info
, h
))
4939 unresolved_reloc
= FALSE
;
4940 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4941 outrel
.r_addend
= rel
->r_addend
;
4945 outrel
.r_addend
= relocation
+ rel
->r_addend
;
4947 if (r_type
== R_PPC_ADDR32
)
4948 outrel
.r_info
= ELF32_R_INFO (0, R_PPC_RELATIVE
);
4953 if (bfd_is_abs_section (sec
))
4955 else if (sec
== NULL
|| sec
->owner
== NULL
)
4957 bfd_set_error (bfd_error_bad_value
);
4964 /* We are turning this relocation into one
4965 against a section symbol. It would be
4966 proper to subtract the symbol's value,
4967 osec->vma, from the emitted reloc addend,
4968 but ld.so expects buggy relocs. */
4969 osec
= sec
->output_section
;
4970 indx
= elf_section_data (osec
)->dynindx
;
4971 BFD_ASSERT (indx
> 0);
4974 printf ("indx=%d section=%s flags=%08x name=%s\n",
4975 indx
, osec
->name
, osec
->flags
,
4976 h
->root
.root
.string
);
4980 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4984 loc
= sreloc
->contents
;
4985 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4986 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4991 /* This reloc will be computed at runtime. We clear the memory
4992 so that it contains predictable value. */
4994 && ((input_section
->flags
& SEC_ALLOC
) != 0
4995 || ELF32_R_TYPE (outrel
.r_info
) != R_PPC_RELATIVE
))
4997 relocation
= howto
->pc_relative
? outrel
.r_offset
: 0;
5004 /* Indirect .sdata relocation. */
5005 case R_PPC_EMB_SDAI16
:
5006 BFD_ASSERT (htab
->sdata
!= NULL
);
5008 = bfd_elf32_finish_pointer_linker_section (output_bfd
, input_bfd
,
5009 info
, htab
->sdata
, h
,
5014 /* Indirect .sdata2 relocation. */
5015 case R_PPC_EMB_SDA2I16
:
5016 BFD_ASSERT (htab
->sdata2
!= NULL
);
5018 = bfd_elf32_finish_pointer_linker_section (output_bfd
, input_bfd
,
5019 info
, htab
->sdata2
, h
,
5024 /* Handle the TOC16 reloc. We want to use the offset within the .got
5025 section, not the actual VMA. This is appropriate when generating
5026 an embedded ELF object, for which the .got section acts like the
5027 AIX .toc section. */
5028 case R_PPC_TOC16
: /* phony GOT16 relocations */
5029 BFD_ASSERT (sec
!= NULL
);
5030 BFD_ASSERT (bfd_is_und_section (sec
)
5031 || strcmp (bfd_get_section_name (abfd
, sec
), ".got") == 0
5032 || strcmp (bfd_get_section_name (abfd
, sec
), ".cgot") == 0)
5034 addend
-= sec
->output_section
->vma
+ sec
->output_offset
+ 0x8000;
5037 case R_PPC_PLTREL24
:
5038 /* Relocation is to the entry for this symbol in the
5039 procedure linkage table. */
5040 BFD_ASSERT (h
!= NULL
);
5042 if (h
->plt
.offset
== (bfd_vma
) -1
5043 || htab
->plt
== NULL
)
5045 /* We didn't make a PLT entry for this symbol. This
5046 happens when statically linking PIC code, or when
5047 using -Bsymbolic. */
5051 unresolved_reloc
= FALSE
;
5052 relocation
= (htab
->plt
->output_section
->vma
5053 + htab
->plt
->output_offset
5057 /* Relocate against _SDA_BASE_. */
5058 case R_PPC_SDAREL16
:
5061 const struct elf_link_hash_entry
*sh
;
5063 BFD_ASSERT (sec
!= NULL
);
5064 name
= bfd_get_section_name (abfd
, sec
->output_section
);
5065 if (! ((strncmp (name
, ".sdata", 6) == 0
5066 && (name
[6] == 0 || name
[6] == '.'))
5067 || (strncmp (name
, ".sbss", 5) == 0
5068 && (name
[5] == 0 || name
[5] == '.'))))
5070 (*_bfd_error_handler
)
5071 (_("%s: the target (%s) of a %s relocation is "
5072 "in the wrong output section (%s)"),
5073 bfd_archive_filename (input_bfd
),
5078 sh
= htab
->sdata
->sym_hash
;
5079 addend
-= (sh
->root
.u
.def
.value
5080 + sh
->root
.u
.def
.section
->output_section
->vma
5081 + sh
->root
.u
.def
.section
->output_offset
);
5085 /* Relocate against _SDA2_BASE_. */
5086 case R_PPC_EMB_SDA2REL
:
5089 const struct elf_link_hash_entry
*sh
;
5091 BFD_ASSERT (sec
!= NULL
);
5092 name
= bfd_get_section_name (abfd
, sec
->output_section
);
5093 if (! (strncmp (name
, ".sdata2", 7) == 0
5094 || strncmp (name
, ".sbss2", 6) == 0))
5096 (*_bfd_error_handler
)
5097 (_("%s: the target (%s) of a %s relocation is "
5098 "in the wrong output section (%s)"),
5099 bfd_archive_filename (input_bfd
),
5104 bfd_set_error (bfd_error_bad_value
);
5108 sh
= htab
->sdata2
->sym_hash
;
5109 addend
-= (sh
->root
.u
.def
.value
5110 + sh
->root
.u
.def
.section
->output_section
->vma
5111 + sh
->root
.u
.def
.section
->output_offset
);
5115 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
5116 case R_PPC_EMB_SDA21
:
5117 case R_PPC_EMB_RELSDA
:
5120 const struct elf_link_hash_entry
*sh
;
5123 BFD_ASSERT (sec
!= NULL
);
5124 name
= bfd_get_section_name (abfd
, sec
->output_section
);
5125 if (((strncmp (name
, ".sdata", 6) == 0
5126 && (name
[6] == 0 || name
[6] == '.'))
5127 || (strncmp (name
, ".sbss", 5) == 0
5128 && (name
[5] == 0 || name
[5] == '.'))))
5131 sh
= htab
->sdata
->sym_hash
;
5132 addend
-= (sh
->root
.u
.def
.value
5133 + sh
->root
.u
.def
.section
->output_section
->vma
5134 + sh
->root
.u
.def
.section
->output_offset
);
5137 else if (strncmp (name
, ".sdata2", 7) == 0
5138 || strncmp (name
, ".sbss2", 6) == 0)
5141 sh
= htab
->sdata2
->sym_hash
;
5142 addend
-= (sh
->root
.u
.def
.value
5143 + sh
->root
.u
.def
.section
->output_section
->vma
5144 + sh
->root
.u
.def
.section
->output_offset
);
5147 else if (strcmp (name
, ".PPC.EMB.sdata0") == 0
5148 || strcmp (name
, ".PPC.EMB.sbss0") == 0)
5155 (*_bfd_error_handler
)
5156 (_("%s: the target (%s) of a %s relocation is "
5157 "in the wrong output section (%s)"),
5158 bfd_archive_filename (input_bfd
),
5163 bfd_set_error (bfd_error_bad_value
);
5168 if (r_type
== R_PPC_EMB_SDA21
)
5169 { /* fill in register field */
5170 insn
= bfd_get_32 (output_bfd
, contents
+ rel
->r_offset
);
5171 insn
= (insn
& ~RA_REGISTER_MASK
) | (reg
<< RA_REGISTER_SHIFT
);
5172 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
5177 /* Relocate against the beginning of the section. */
5179 case R_PPC_SECTOFF_LO
:
5180 case R_PPC_SECTOFF_HI
:
5181 case R_PPC_SECTOFF_HA
:
5182 BFD_ASSERT (sec
!= NULL
);
5183 addend
-= sec
->output_section
->vma
;
5186 /* Negative relocations. */
5187 case R_PPC_EMB_NADDR32
:
5188 case R_PPC_EMB_NADDR16
:
5189 case R_PPC_EMB_NADDR16_LO
:
5190 case R_PPC_EMB_NADDR16_HI
:
5191 case R_PPC_EMB_NADDR16_HA
:
5192 addend
-= 2 * relocation
;
5196 case R_PPC_GLOB_DAT
:
5197 case R_PPC_JMP_SLOT
:
5198 case R_PPC_RELATIVE
:
5200 case R_PPC_PLTREL32
:
5201 case R_PPC_PLT16_LO
:
5202 case R_PPC_PLT16_HI
:
5203 case R_PPC_PLT16_HA
:
5205 case R_PPC_EMB_RELSEC16
:
5206 case R_PPC_EMB_RELST_LO
:
5207 case R_PPC_EMB_RELST_HI
:
5208 case R_PPC_EMB_RELST_HA
:
5209 case R_PPC_EMB_BIT_FLD
:
5210 (*_bfd_error_handler
)
5211 (_("%s: relocation %s is not yet supported for symbol %s."),
5212 bfd_archive_filename (input_bfd
),
5216 bfd_set_error (bfd_error_invalid_operation
);
5221 /* Do any further special processing. */
5227 case R_PPC_ADDR16_HA
:
5228 case R_PPC_GOT16_HA
:
5229 case R_PPC_PLT16_HA
:
5230 case R_PPC_SECTOFF_HA
:
5231 case R_PPC_TPREL16_HA
:
5232 case R_PPC_DTPREL16_HA
:
5233 case R_PPC_GOT_TLSGD16_HA
:
5234 case R_PPC_GOT_TLSLD16_HA
:
5235 case R_PPC_GOT_TPREL16_HA
:
5236 case R_PPC_GOT_DTPREL16_HA
:
5237 case R_PPC_EMB_NADDR16_HA
:
5238 case R_PPC_EMB_RELST_HA
:
5239 /* It's just possible that this symbol is a weak symbol
5240 that's not actually defined anywhere. In that case,
5241 'sec' would be NULL, and we should leave the symbol
5242 alone (it will be set to zero elsewhere in the link). */
5244 /* Add 0x10000 if sign bit in 0:15 is set.
5245 Bits 0:15 are not used. */
5251 fprintf (stderr
, "\ttype = %s (%d), name = %s, symbol index = %ld, "
5252 "offset = %ld, addend = %ld\n",
5257 (long) rel
->r_offset
,
5261 if (unresolved_reloc
5262 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
5263 && (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0))
5265 (*_bfd_error_handler
)
5266 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
5267 bfd_archive_filename (input_bfd
),
5268 bfd_get_section_name (input_bfd
, input_section
),
5269 (long) rel
->r_offset
,
5275 r
= _bfd_final_link_relocate (howto
,
5283 if (r
!= bfd_reloc_ok
)
5285 if (sym_name
== NULL
)
5286 sym_name
= "(null)";
5287 if (r
== bfd_reloc_overflow
)
5292 && h
->root
.type
== bfd_link_hash_undefweak
5293 && howto
->pc_relative
)
5295 /* Assume this is a call protected by other code that
5296 detect the symbol is undefined. If this is the case,
5297 we can safely ignore the overflow. If not, the
5298 program is hosed anyway, and a little warning isn't
5304 if (! (*info
->callbacks
->reloc_overflow
) (info
,
5315 (*_bfd_error_handler
)
5316 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
5317 bfd_archive_filename (input_bfd
),
5318 bfd_get_section_name (input_bfd
, input_section
),
5319 (long) rel
->r_offset
, howto
->name
, sym_name
, (int) r
);
5326 fprintf (stderr
, "\n");
5332 static enum elf_reloc_type_class
5333 ppc_elf_reloc_type_class (const Elf_Internal_Rela
*rela
)
5335 switch (ELF32_R_TYPE (rela
->r_info
))
5337 case R_PPC_RELATIVE
:
5338 return reloc_class_relative
;
5341 case R_PPC_JMP_SLOT
:
5342 return reloc_class_plt
;
5344 return reloc_class_copy
;
5346 return reloc_class_normal
;
5350 /* Support for core dump NOTE sections. */
5353 ppc_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
5356 unsigned int raw_size
;
5358 switch (note
->descsz
)
5363 case 268: /* Linux/PPC. */
5365 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
5368 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
5377 /* Make a ".reg/999" section. */
5378 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
5379 raw_size
, note
->descpos
+ offset
);
5383 ppc_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
5385 switch (note
->descsz
)
5390 case 128: /* Linux/PPC elf_prpsinfo. */
5391 elf_tdata (abfd
)->core_program
5392 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 32, 16);
5393 elf_tdata (abfd
)->core_command
5394 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 48, 80);
5397 /* Note that for some reason, a spurious space is tacked
5398 onto the end of the args in some (at least one anyway)
5399 implementations, so strip it off if it exists. */
5402 char *command
= elf_tdata (abfd
)->core_command
;
5403 int n
= strlen (command
);
5405 if (0 < n
&& command
[n
- 1] == ' ')
5406 command
[n
- 1] = '\0';
5412 /* Very simple linked list structure for recording apuinfo values. */
5413 typedef struct apuinfo_list
5415 struct apuinfo_list
*next
;
5416 unsigned long value
;
5420 static apuinfo_list
*head
;
5424 apuinfo_list_init (void)
5430 apuinfo_list_add (unsigned long value
)
5432 apuinfo_list
*entry
= head
;
5434 while (entry
!= NULL
)
5436 if (entry
->value
== value
)
5438 entry
= entry
->next
;
5441 entry
= bfd_malloc (sizeof (* entry
));
5445 entry
->value
= value
;
5451 apuinfo_list_length (void)
5453 apuinfo_list
*entry
;
5454 unsigned long count
;
5456 for (entry
= head
, count
= 0;
5458 entry
= entry
->next
)
5464 static inline unsigned long
5465 apuinfo_list_element (unsigned long number
)
5467 apuinfo_list
* entry
;
5471 entry
= entry
->next
)
5474 return entry
? entry
->value
: 0;
5478 apuinfo_list_finish (void)
5480 apuinfo_list
*entry
;
5482 for (entry
= head
; entry
;)
5484 apuinfo_list
*next
= entry
->next
;
5492 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
5493 #define APUINFO_LABEL "APUinfo"
5495 /* Scan the input BFDs and create a linked list of
5496 the APUinfo values that will need to be emitted. */
5499 ppc_elf_begin_write_processing (bfd
*abfd
, struct bfd_link_info
*link_info
)
5504 unsigned num_input_sections
;
5505 bfd_size_type output_section_size
;
5507 unsigned num_entries
;
5508 unsigned long offset
;
5509 unsigned long length
;
5510 const char *error_message
= NULL
;
5512 if (link_info
== NULL
)
5515 /* Scan the input bfds, looking for apuinfo sections. */
5516 num_input_sections
= 0;
5517 output_section_size
= 0;
5519 for (ibfd
= link_info
->input_bfds
; ibfd
; ibfd
= ibfd
->link_next
)
5521 asec
= bfd_get_section_by_name (ibfd
, APUINFO_SECTION_NAME
);
5524 ++ num_input_sections
;
5525 output_section_size
+= asec
->_raw_size
;
5529 /* We need at least one input sections
5530 in order to make merging worthwhile. */
5531 if (num_input_sections
< 1)
5534 /* Just make sure that the output section exists as well. */
5535 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
5539 /* Allocate a buffer for the contents of the input sections. */
5540 buffer
= bfd_malloc (output_section_size
);
5545 apuinfo_list_init ();
5547 /* Read in the input sections contents. */
5548 for (ibfd
= link_info
->input_bfds
; ibfd
; ibfd
= ibfd
->link_next
)
5550 unsigned long datum
;
5553 asec
= bfd_get_section_by_name (ibfd
, APUINFO_SECTION_NAME
);
5557 length
= asec
->_raw_size
;
5560 error_message
= _("corrupt or empty %s section in %s");
5564 if (bfd_seek (ibfd
, asec
->filepos
, SEEK_SET
) != 0
5565 || (bfd_bread (buffer
+ offset
, length
, ibfd
) != length
))
5567 error_message
= _("unable to read in %s section from %s");
5571 /* Process the contents of the section. */
5572 ptr
= buffer
+ offset
;
5573 error_message
= _("corrupt %s section in %s");
5575 /* Verify the contents of the header. Note - we have to
5576 extract the values this way in order to allow for a
5577 host whose endian-ness is different from the target. */
5578 datum
= bfd_get_32 (ibfd
, ptr
);
5579 if (datum
!= sizeof APUINFO_LABEL
)
5582 datum
= bfd_get_32 (ibfd
, ptr
+ 8);
5586 if (strcmp (ptr
+ 12, APUINFO_LABEL
) != 0)
5589 /* Get the number of bytes used for apuinfo entries. */
5590 datum
= bfd_get_32 (ibfd
, ptr
+ 4);
5591 if (datum
+ 20 != length
)
5594 /* Make sure that we do not run off the end of the section. */
5595 if (offset
+ length
> output_section_size
)
5598 /* Scan the apuinfo section, building a list of apuinfo numbers. */
5599 for (i
= 0; i
< datum
; i
+= 4)
5600 apuinfo_list_add (bfd_get_32 (ibfd
, ptr
+ 20 + i
));
5602 /* Update the offset. */
5606 error_message
= NULL
;
5608 /* Compute the size of the output section. */
5609 num_entries
= apuinfo_list_length ();
5610 output_section_size
= 20 + num_entries
* 4;
5612 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
5614 if (! bfd_set_section_size (abfd
, asec
, output_section_size
))
5616 error_message
= _("warning: unable to set size of %s section in %s");
5622 (*_bfd_error_handler
) (error_message
, APUINFO_SECTION_NAME
,
5623 bfd_archive_filename (ibfd
));
5627 /* Prevent the output section from accumulating the input sections'
5628 contents. We have already stored this in our linked list structure. */
5631 ppc_elf_write_section (bfd
*abfd ATTRIBUTE_UNUSED
,
5633 bfd_byte
*contents ATTRIBUTE_UNUSED
)
5635 return (apuinfo_list_length ()
5636 && strcmp (asec
->name
, APUINFO_SECTION_NAME
) == 0);
5640 /* Finally we can generate the output section. */
5643 ppc_elf_final_write_processing (bfd
*abfd
, bfd_boolean linker ATTRIBUTE_UNUSED
)
5648 unsigned num_entries
;
5649 bfd_size_type length
;
5651 asec
= bfd_get_section_by_name (abfd
, APUINFO_SECTION_NAME
);
5655 if (apuinfo_list_length () == 0)
5658 length
= asec
->_raw_size
;
5662 buffer
= bfd_malloc (length
);
5665 (*_bfd_error_handler
)
5666 (_("failed to allocate space for new APUinfo section."));
5670 /* Create the apuinfo header. */
5671 num_entries
= apuinfo_list_length ();
5672 bfd_put_32 (abfd
, sizeof APUINFO_LABEL
, buffer
);
5673 bfd_put_32 (abfd
, num_entries
* 4, buffer
+ 4);
5674 bfd_put_32 (abfd
, 0x2, buffer
+ 8);
5675 strcpy (buffer
+ 12, APUINFO_LABEL
);
5678 for (i
= 0; i
< num_entries
; i
++)
5680 bfd_put_32 (abfd
, apuinfo_list_element (i
), buffer
+ length
);
5684 if (length
!= asec
->_raw_size
)
5685 (*_bfd_error_handler
) (_("failed to compute new APUinfo section."));
5687 if (! bfd_set_section_contents (abfd
, asec
, buffer
, (file_ptr
) 0, length
))
5688 (*_bfd_error_handler
) (_("failed to install new APUinfo section."));
5692 apuinfo_list_finish ();
5695 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
5696 #define TARGET_LITTLE_NAME "elf32-powerpcle"
5697 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
5698 #define TARGET_BIG_NAME "elf32-powerpc"
5699 #define ELF_ARCH bfd_arch_powerpc
5700 #define ELF_MACHINE_CODE EM_PPC
5701 #define ELF_MAXPAGESIZE 0x10000
5702 #define elf_info_to_howto ppc_elf_info_to_howto
5704 #ifdef EM_CYGNUS_POWERPC
5705 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
5709 #define ELF_MACHINE_ALT2 EM_PPC_OLD
5712 #define elf_backend_plt_not_loaded 1
5713 #define elf_backend_got_symbol_offset 4
5714 #define elf_backend_can_gc_sections 1
5715 #define elf_backend_can_refcount 1
5716 #define elf_backend_got_header_size 12
5717 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
5718 #define elf_backend_rela_normal 1
5720 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
5721 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
5722 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
5723 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
5724 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
5726 #define elf_backend_object_p ppc_elf_object_p
5727 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
5728 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
5729 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
5730 #define elf_backend_relocate_section ppc_elf_relocate_section
5731 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
5732 #define elf_backend_check_relocs ppc_elf_check_relocs
5733 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
5734 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
5735 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
5736 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
5737 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
5738 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
5739 #define elf_backend_fake_sections ppc_elf_fake_sections
5740 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
5741 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
5742 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
5743 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
5744 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
5745 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
5746 #define elf_backend_final_write_processing ppc_elf_final_write_processing
5747 #define elf_backend_write_section ppc_elf_write_section
5749 #include "elf32-target.h"