1 /* PowerPC-specific support for 32-bit ELF
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004 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 /* Enumeration to specify the special section. */
74 enum elf_linker_section_enum
80 /* Sections created by the linker. */
82 typedef struct elf_linker_section
84 /* pointer to the section */
86 /* pointer to the relocations needed for this section */
87 asection *rel_section;
88 /* pointer to the created symbol hash value */
89 struct elf_link_hash_entry *sym_hash;
90 /* offset of symbol from beginning of section */
92 } elf_linker_section_t;
94 /* Linked list of allocated pointer entries. This hangs off of the
95 symbol lists, and provides allows us to return different pointers,
96 based on different addend's. */
98 typedef struct elf_linker_section_pointers
100 /* next allocated pointer for this symbol */
101 struct elf_linker_section_pointers *next;
102 /* offset of pointer from beginning of section */
106 /* which linker section this is */
107 elf_linker_section_t *lsect;
108 /* whether address was written yet */
109 bfd_boolean written_address_p;
110 } elf_linker_section_pointers_t;
112 struct ppc_elf_obj_tdata
114 struct elf_obj_tdata elf;
116 /* A mapping from local symbols to offsets into the various linker
117 sections added. This is index by the symbol index. */
118 elf_linker_section_pointers_t **linker_section_pointers;
121 #define ppc_elf_tdata(bfd) \
122 ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
124 #define elf_local_ptr_offsets(bfd) \
125 (ppc_elf_tdata (bfd)->linker_section_pointers)
127 /* Override the generic function because we store some extras. */
130 ppc_elf_mkobject (bfd *abfd)
132 bfd_size_type amt = sizeof (struct ppc_elf_obj_tdata);
133 abfd->tdata.any = bfd_zalloc (abfd, amt);
134 if (abfd->tdata.any == NULL)
139 /* The PPC linker needs to keep track of the number of relocs that it
140 decides to copy as dynamic relocs in check_relocs for each symbol.
141 This is so that it can later discard them if they are found to be
142 unnecessary. We store the information in a field extending the
143 regular ELF linker hash table. */
145 struct ppc_elf_dyn_relocs
147 struct ppc_elf_dyn_relocs *next;
149 /* The input section of the reloc. */
152 /* Total number of relocs copied for the input section. */
155 /* Number of pc-relative relocs copied for the input section. */
156 bfd_size_type pc_count;
159 /* PPC ELF linker hash entry. */
161 struct ppc_elf_link_hash_entry
163 struct elf_link_hash_entry elf;
165 /* If this symbol is used in the linker created sections, the processor
166 specific backend uses this field to map the field into the offset
167 from the beginning of the section. */
168 elf_linker_section_pointers_t *linker_section_pointer;
170 /* Track dynamic relocs copied for this symbol. */
171 struct ppc_elf_dyn_relocs *dyn_relocs;
173 /* Contexts in which symbol is used in the GOT (or TOC).
174 TLS_GD .. TLS_TLS bits are or'd into the mask as the
175 corresponding relocs are encountered during check_relocs.
176 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
177 indicate the corresponding GOT entry type is not needed. */
178 #define TLS_GD 1 /* GD reloc. */
179 #define TLS_LD 2 /* LD reloc. */
180 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
181 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
182 #define TLS_TLS 16 /* Any TLS reloc. */
183 #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */
187 #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
189 /* PPC ELF linker hash table. */
191 struct ppc_elf_link_hash_table
193 struct elf_link_hash_table elf;
195 /* Short-cuts to get to dynamic linker sections. */
204 elf_linker_section_t *sdata;
205 elf_linker_section_t *sdata2;
208 /* Shortcut to .__tls_get_addr. */
209 struct elf_link_hash_entry *tls_get_addr;
211 /* TLS local dynamic got entry handling. */
213 bfd_signed_vma refcount;
217 /* Small local sym to section mapping cache. */
218 struct sym_sec_cache sym_sec;
221 /* Get the PPC ELF linker hash table from a link_info structure. */
223 #define ppc_elf_hash_table(p) \
224 ((struct ppc_elf_link_hash_table *) (p)->hash)
226 /* Create an entry in a PPC ELF linker hash table. */
228 static struct bfd_hash_entry *
229 ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
230 struct bfd_hash_table *table,
233 /* Allocate the structure if it has not already been allocated by a
237 entry = bfd_hash_allocate (table,
238 sizeof (struct ppc_elf_link_hash_entry));
243 /* Call the allocation method of the superclass. */
244 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
247 ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
248 ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
249 ppc_elf_hash_entry (entry)->tls_mask = 0;
255 /* Create a PPC ELF linker hash table. */
257 static struct bfd_link_hash_table *
258 ppc_elf_link_hash_table_create (bfd *abfd)
260 struct ppc_elf_link_hash_table *ret;
262 ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
266 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd,
267 ppc_elf_link_hash_newfunc))
273 return &ret->elf.root;
276 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
277 copying dynamic variables from a shared lib into an app's dynbss
278 section, and instead use a dynamic relocation to point into the
280 #define ELIMINATE_COPY_RELOCS 1
282 /* Copy the extra info we tack onto an elf_link_hash_entry. */
285 ppc_elf_copy_indirect_symbol (const struct elf_backend_data *bed,
286 struct elf_link_hash_entry *dir,
287 struct elf_link_hash_entry *ind)
289 struct ppc_elf_link_hash_entry *edir, *eind;
291 edir = (struct ppc_elf_link_hash_entry *) dir;
292 eind = (struct ppc_elf_link_hash_entry *) ind;
294 if (eind->dyn_relocs != NULL)
296 if (edir->dyn_relocs != NULL)
298 struct ppc_elf_dyn_relocs **pp;
299 struct ppc_elf_dyn_relocs *p;
301 if (ind->root.type == bfd_link_hash_indirect)
304 /* Add reloc counts against the weak sym to the strong sym
305 list. Merge any entries against the same section. */
306 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
308 struct ppc_elf_dyn_relocs *q;
310 for (q = edir->dyn_relocs; q != NULL; q = q->next)
311 if (q->sec == p->sec)
313 q->pc_count += p->pc_count;
314 q->count += p->count;
321 *pp = edir->dyn_relocs;
324 edir->dyn_relocs = eind->dyn_relocs;
325 eind->dyn_relocs = NULL;
328 edir->tls_mask |= eind->tls_mask;
330 if (ELIMINATE_COPY_RELOCS
331 && ind->root.type != bfd_link_hash_indirect
332 && (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
333 /* If called to transfer flags for a weakdef during processing
334 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
335 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
336 dir->elf_link_hash_flags |=
337 (ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
338 | ELF_LINK_HASH_REF_REGULAR
339 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
340 | ELF_LINK_HASH_NEEDS_PLT));
342 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
345 static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
347 static reloc_howto_type ppc_elf_howto_raw[] = {
348 /* This reloc does nothing. */
349 HOWTO (R_PPC_NONE, /* type */
351 2, /* size (0 = byte, 1 = short, 2 = long) */
353 FALSE, /* pc_relative */
355 complain_overflow_bitfield, /* complain_on_overflow */
356 bfd_elf_generic_reloc, /* special_function */
357 "R_PPC_NONE", /* name */
358 FALSE, /* partial_inplace */
361 FALSE), /* pcrel_offset */
363 /* A standard 32 bit relocation. */
364 HOWTO (R_PPC_ADDR32, /* type */
366 2, /* size (0 = byte, 1 = short, 2 = long) */
368 FALSE, /* pc_relative */
370 complain_overflow_bitfield, /* complain_on_overflow */
371 bfd_elf_generic_reloc, /* special_function */
372 "R_PPC_ADDR32", /* name */
373 FALSE, /* partial_inplace */
375 0xffffffff, /* dst_mask */
376 FALSE), /* pcrel_offset */
378 /* An absolute 26 bit branch; the lower two bits must be zero.
379 FIXME: we don't check that, we just clear them. */
380 HOWTO (R_PPC_ADDR24, /* type */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
384 FALSE, /* pc_relative */
386 complain_overflow_bitfield, /* complain_on_overflow */
387 bfd_elf_generic_reloc, /* special_function */
388 "R_PPC_ADDR24", /* name */
389 FALSE, /* partial_inplace */
391 0x3fffffc, /* dst_mask */
392 FALSE), /* pcrel_offset */
394 /* A standard 16 bit relocation. */
395 HOWTO (R_PPC_ADDR16, /* type */
397 1, /* size (0 = byte, 1 = short, 2 = long) */
399 FALSE, /* pc_relative */
401 complain_overflow_bitfield, /* complain_on_overflow */
402 bfd_elf_generic_reloc, /* special_function */
403 "R_PPC_ADDR16", /* name */
404 FALSE, /* partial_inplace */
406 0xffff, /* dst_mask */
407 FALSE), /* pcrel_offset */
409 /* A 16 bit relocation without overflow. */
410 HOWTO (R_PPC_ADDR16_LO, /* type */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
414 FALSE, /* pc_relative */
416 complain_overflow_dont,/* complain_on_overflow */
417 bfd_elf_generic_reloc, /* special_function */
418 "R_PPC_ADDR16_LO", /* name */
419 FALSE, /* partial_inplace */
421 0xffff, /* dst_mask */
422 FALSE), /* pcrel_offset */
424 /* The high order 16 bits of an address. */
425 HOWTO (R_PPC_ADDR16_HI, /* type */
427 1, /* size (0 = byte, 1 = short, 2 = long) */
429 FALSE, /* pc_relative */
431 complain_overflow_dont, /* complain_on_overflow */
432 bfd_elf_generic_reloc, /* special_function */
433 "R_PPC_ADDR16_HI", /* name */
434 FALSE, /* partial_inplace */
436 0xffff, /* dst_mask */
437 FALSE), /* pcrel_offset */
439 /* The high order 16 bits of an address, plus 1 if the contents of
440 the low 16 bits, treated as a signed number, is negative. */
441 HOWTO (R_PPC_ADDR16_HA, /* type */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
445 FALSE, /* pc_relative */
447 complain_overflow_dont, /* complain_on_overflow */
448 ppc_elf_addr16_ha_reloc, /* special_function */
449 "R_PPC_ADDR16_HA", /* name */
450 FALSE, /* partial_inplace */
452 0xffff, /* dst_mask */
453 FALSE), /* pcrel_offset */
455 /* An absolute 16 bit branch; the lower two bits must be zero.
456 FIXME: we don't check that, we just clear them. */
457 HOWTO (R_PPC_ADDR14, /* type */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
461 FALSE, /* pc_relative */
463 complain_overflow_bitfield, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_PPC_ADDR14", /* name */
466 FALSE, /* partial_inplace */
468 0xfffc, /* dst_mask */
469 FALSE), /* pcrel_offset */
471 /* An absolute 16 bit branch, for which bit 10 should be set to
472 indicate that the branch is expected to be taken. The lower two
473 bits must be zero. */
474 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
476 2, /* size (0 = byte, 1 = short, 2 = long) */
478 FALSE, /* pc_relative */
480 complain_overflow_bitfield, /* complain_on_overflow */
481 bfd_elf_generic_reloc, /* special_function */
482 "R_PPC_ADDR14_BRTAKEN",/* name */
483 FALSE, /* partial_inplace */
485 0xfffc, /* dst_mask */
486 FALSE), /* pcrel_offset */
488 /* An absolute 16 bit branch, for which bit 10 should be set to
489 indicate that the branch is not expected to be taken. The lower
490 two bits must be zero. */
491 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
493 2, /* size (0 = byte, 1 = short, 2 = long) */
495 FALSE, /* pc_relative */
497 complain_overflow_bitfield, /* complain_on_overflow */
498 bfd_elf_generic_reloc, /* special_function */
499 "R_PPC_ADDR14_BRNTAKEN",/* name */
500 FALSE, /* partial_inplace */
502 0xfffc, /* dst_mask */
503 FALSE), /* pcrel_offset */
505 /* A relative 26 bit branch; the lower two bits must be zero. */
506 HOWTO (R_PPC_REL24, /* type */
508 2, /* size (0 = byte, 1 = short, 2 = long) */
510 TRUE, /* pc_relative */
512 complain_overflow_signed, /* complain_on_overflow */
513 bfd_elf_generic_reloc, /* special_function */
514 "R_PPC_REL24", /* name */
515 FALSE, /* partial_inplace */
517 0x3fffffc, /* dst_mask */
518 TRUE), /* pcrel_offset */
520 /* A relative 16 bit branch; the lower two bits must be zero. */
521 HOWTO (R_PPC_REL14, /* type */
523 2, /* size (0 = byte, 1 = short, 2 = long) */
525 TRUE, /* pc_relative */
527 complain_overflow_signed, /* complain_on_overflow */
528 bfd_elf_generic_reloc, /* special_function */
529 "R_PPC_REL14", /* name */
530 FALSE, /* partial_inplace */
532 0xfffc, /* dst_mask */
533 TRUE), /* pcrel_offset */
535 /* A relative 16 bit branch. Bit 10 should be set to indicate that
536 the branch is expected to be taken. The lower two bits must be
538 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
540 2, /* size (0 = byte, 1 = short, 2 = long) */
542 TRUE, /* pc_relative */
544 complain_overflow_signed, /* complain_on_overflow */
545 bfd_elf_generic_reloc, /* special_function */
546 "R_PPC_REL14_BRTAKEN", /* name */
547 FALSE, /* partial_inplace */
549 0xfffc, /* dst_mask */
550 TRUE), /* pcrel_offset */
552 /* A relative 16 bit branch. Bit 10 should be set to indicate that
553 the branch is not expected to be taken. The lower two bits must
555 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
557 2, /* size (0 = byte, 1 = short, 2 = long) */
559 TRUE, /* pc_relative */
561 complain_overflow_signed, /* complain_on_overflow */
562 bfd_elf_generic_reloc, /* special_function */
563 "R_PPC_REL14_BRNTAKEN",/* name */
564 FALSE, /* partial_inplace */
566 0xfffc, /* dst_mask */
567 TRUE), /* pcrel_offset */
569 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
571 HOWTO (R_PPC_GOT16, /* type */
573 1, /* size (0 = byte, 1 = short, 2 = long) */
575 FALSE, /* pc_relative */
577 complain_overflow_signed, /* complain_on_overflow */
578 bfd_elf_generic_reloc, /* special_function */
579 "R_PPC_GOT16", /* name */
580 FALSE, /* partial_inplace */
582 0xffff, /* dst_mask */
583 FALSE), /* pcrel_offset */
585 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
587 HOWTO (R_PPC_GOT16_LO, /* type */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
591 FALSE, /* pc_relative */
593 complain_overflow_dont, /* complain_on_overflow */
594 bfd_elf_generic_reloc, /* special_function */
595 "R_PPC_GOT16_LO", /* name */
596 FALSE, /* partial_inplace */
598 0xffff, /* dst_mask */
599 FALSE), /* pcrel_offset */
601 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
603 HOWTO (R_PPC_GOT16_HI, /* type */
605 1, /* size (0 = byte, 1 = short, 2 = long) */
607 FALSE, /* pc_relative */
609 complain_overflow_bitfield, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC_GOT16_HI", /* name */
612 FALSE, /* partial_inplace */
614 0xffff, /* dst_mask */
615 FALSE), /* pcrel_offset */
617 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
619 HOWTO (R_PPC_GOT16_HA, /* type */
621 1, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE, /* pc_relative */
625 complain_overflow_bitfield, /* complain_on_overflow */
626 ppc_elf_addr16_ha_reloc, /* special_function */
627 "R_PPC_GOT16_HA", /* name */
628 FALSE, /* partial_inplace */
630 0xffff, /* dst_mask */
631 FALSE), /* pcrel_offset */
633 /* Like R_PPC_REL24, but referring to the procedure linkage table
634 entry for the symbol. */
635 HOWTO (R_PPC_PLTREL24, /* type */
637 2, /* size (0 = byte, 1 = short, 2 = long) */
639 TRUE, /* pc_relative */
641 complain_overflow_signed, /* complain_on_overflow */
642 bfd_elf_generic_reloc, /* special_function */
643 "R_PPC_PLTREL24", /* name */
644 FALSE, /* partial_inplace */
646 0x3fffffc, /* dst_mask */
647 TRUE), /* pcrel_offset */
649 /* This is used only by the dynamic linker. The symbol should exist
650 both in the object being run and in some shared library. The
651 dynamic linker copies the data addressed by the symbol from the
652 shared library into the object, because the object being
653 run has to have the data at some particular address. */
654 HOWTO (R_PPC_COPY, /* type */
656 2, /* size (0 = byte, 1 = short, 2 = long) */
658 FALSE, /* pc_relative */
660 complain_overflow_bitfield, /* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
662 "R_PPC_COPY", /* name */
663 FALSE, /* partial_inplace */
666 FALSE), /* pcrel_offset */
668 /* Like R_PPC_ADDR32, but used when setting global offset table
670 HOWTO (R_PPC_GLOB_DAT, /* type */
672 2, /* size (0 = byte, 1 = short, 2 = long) */
674 FALSE, /* pc_relative */
676 complain_overflow_bitfield, /* complain_on_overflow */
677 bfd_elf_generic_reloc, /* special_function */
678 "R_PPC_GLOB_DAT", /* name */
679 FALSE, /* partial_inplace */
681 0xffffffff, /* dst_mask */
682 FALSE), /* pcrel_offset */
684 /* Marks a procedure linkage table entry for a symbol. */
685 HOWTO (R_PPC_JMP_SLOT, /* type */
687 2, /* size (0 = byte, 1 = short, 2 = long) */
689 FALSE, /* pc_relative */
691 complain_overflow_bitfield, /* complain_on_overflow */
692 bfd_elf_generic_reloc, /* special_function */
693 "R_PPC_JMP_SLOT", /* name */
694 FALSE, /* partial_inplace */
697 FALSE), /* pcrel_offset */
699 /* Used only by the dynamic linker. When the object is run, this
700 longword is set to the load address of the object, plus the
702 HOWTO (R_PPC_RELATIVE, /* type */
704 2, /* size (0 = byte, 1 = short, 2 = long) */
706 FALSE, /* pc_relative */
708 complain_overflow_bitfield, /* complain_on_overflow */
709 bfd_elf_generic_reloc, /* special_function */
710 "R_PPC_RELATIVE", /* name */
711 FALSE, /* partial_inplace */
713 0xffffffff, /* dst_mask */
714 FALSE), /* pcrel_offset */
716 /* Like R_PPC_REL24, but uses the value of the symbol within the
717 object rather than the final value. Normally used for
718 _GLOBAL_OFFSET_TABLE_. */
719 HOWTO (R_PPC_LOCAL24PC, /* type */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
723 TRUE, /* pc_relative */
725 complain_overflow_signed, /* complain_on_overflow */
726 bfd_elf_generic_reloc, /* special_function */
727 "R_PPC_LOCAL24PC", /* name */
728 FALSE, /* partial_inplace */
730 0x3fffffc, /* dst_mask */
731 TRUE), /* pcrel_offset */
733 /* Like R_PPC_ADDR32, but may be unaligned. */
734 HOWTO (R_PPC_UADDR32, /* type */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
738 FALSE, /* pc_relative */
740 complain_overflow_bitfield, /* complain_on_overflow */
741 bfd_elf_generic_reloc, /* special_function */
742 "R_PPC_UADDR32", /* name */
743 FALSE, /* partial_inplace */
745 0xffffffff, /* dst_mask */
746 FALSE), /* pcrel_offset */
748 /* Like R_PPC_ADDR16, but may be unaligned. */
749 HOWTO (R_PPC_UADDR16, /* type */
751 1, /* size (0 = byte, 1 = short, 2 = long) */
753 FALSE, /* pc_relative */
755 complain_overflow_bitfield, /* complain_on_overflow */
756 bfd_elf_generic_reloc, /* special_function */
757 "R_PPC_UADDR16", /* name */
758 FALSE, /* partial_inplace */
760 0xffff, /* dst_mask */
761 FALSE), /* pcrel_offset */
763 /* 32-bit PC relative */
764 HOWTO (R_PPC_REL32, /* type */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
768 TRUE, /* pc_relative */
770 complain_overflow_bitfield, /* complain_on_overflow */
771 bfd_elf_generic_reloc, /* special_function */
772 "R_PPC_REL32", /* name */
773 FALSE, /* partial_inplace */
775 0xffffffff, /* dst_mask */
776 TRUE), /* pcrel_offset */
778 /* 32-bit relocation to the symbol's procedure linkage table.
779 FIXME: not supported. */
780 HOWTO (R_PPC_PLT32, /* type */
782 2, /* size (0 = byte, 1 = short, 2 = long) */
784 FALSE, /* pc_relative */
786 complain_overflow_bitfield, /* complain_on_overflow */
787 bfd_elf_generic_reloc, /* special_function */
788 "R_PPC_PLT32", /* name */
789 FALSE, /* partial_inplace */
792 FALSE), /* pcrel_offset */
794 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
795 FIXME: not supported. */
796 HOWTO (R_PPC_PLTREL32, /* type */
798 2, /* size (0 = byte, 1 = short, 2 = long) */
800 TRUE, /* pc_relative */
802 complain_overflow_bitfield, /* complain_on_overflow */
803 bfd_elf_generic_reloc, /* special_function */
804 "R_PPC_PLTREL32", /* name */
805 FALSE, /* partial_inplace */
808 TRUE), /* pcrel_offset */
810 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
812 HOWTO (R_PPC_PLT16_LO, /* type */
814 1, /* size (0 = byte, 1 = short, 2 = long) */
816 FALSE, /* pc_relative */
818 complain_overflow_dont, /* complain_on_overflow */
819 bfd_elf_generic_reloc, /* special_function */
820 "R_PPC_PLT16_LO", /* name */
821 FALSE, /* partial_inplace */
823 0xffff, /* dst_mask */
824 FALSE), /* pcrel_offset */
826 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
828 HOWTO (R_PPC_PLT16_HI, /* type */
830 1, /* size (0 = byte, 1 = short, 2 = long) */
832 FALSE, /* pc_relative */
834 complain_overflow_bitfield, /* complain_on_overflow */
835 bfd_elf_generic_reloc, /* special_function */
836 "R_PPC_PLT16_HI", /* name */
837 FALSE, /* partial_inplace */
839 0xffff, /* dst_mask */
840 FALSE), /* pcrel_offset */
842 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
844 HOWTO (R_PPC_PLT16_HA, /* type */
846 1, /* size (0 = byte, 1 = short, 2 = long) */
848 FALSE, /* pc_relative */
850 complain_overflow_bitfield, /* complain_on_overflow */
851 ppc_elf_addr16_ha_reloc, /* special_function */
852 "R_PPC_PLT16_HA", /* name */
853 FALSE, /* partial_inplace */
855 0xffff, /* dst_mask */
856 FALSE), /* pcrel_offset */
858 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
860 HOWTO (R_PPC_SDAREL16, /* type */
862 1, /* size (0 = byte, 1 = short, 2 = long) */
864 FALSE, /* pc_relative */
866 complain_overflow_signed, /* complain_on_overflow */
867 bfd_elf_generic_reloc, /* special_function */
868 "R_PPC_SDAREL16", /* name */
869 FALSE, /* partial_inplace */
871 0xffff, /* dst_mask */
872 FALSE), /* pcrel_offset */
874 /* 16-bit section relative relocation. */
875 HOWTO (R_PPC_SECTOFF, /* type */
877 1, /* size (0 = byte, 1 = short, 2 = long) */
879 FALSE, /* pc_relative */
881 complain_overflow_bitfield, /* complain_on_overflow */
882 bfd_elf_generic_reloc, /* special_function */
883 "R_PPC_SECTOFF", /* name */
884 FALSE, /* partial_inplace */
886 0xffff, /* dst_mask */
887 FALSE), /* pcrel_offset */
889 /* 16-bit lower half section relative relocation. */
890 HOWTO (R_PPC_SECTOFF_LO, /* type */
892 1, /* size (0 = byte, 1 = short, 2 = long) */
894 FALSE, /* pc_relative */
896 complain_overflow_dont, /* complain_on_overflow */
897 bfd_elf_generic_reloc, /* special_function */
898 "R_PPC_SECTOFF_LO", /* name */
899 FALSE, /* partial_inplace */
901 0xffff, /* dst_mask */
902 FALSE), /* pcrel_offset */
904 /* 16-bit upper half section relative relocation. */
905 HOWTO (R_PPC_SECTOFF_HI, /* type */
907 1, /* size (0 = byte, 1 = short, 2 = long) */
909 FALSE, /* pc_relative */
911 complain_overflow_bitfield, /* complain_on_overflow */
912 bfd_elf_generic_reloc, /* special_function */
913 "R_PPC_SECTOFF_HI", /* name */
914 FALSE, /* partial_inplace */
916 0xffff, /* dst_mask */
917 FALSE), /* pcrel_offset */
919 /* 16-bit upper half adjusted section relative relocation. */
920 HOWTO (R_PPC_SECTOFF_HA, /* type */
922 1, /* size (0 = byte, 1 = short, 2 = long) */
924 FALSE, /* pc_relative */
926 complain_overflow_bitfield, /* complain_on_overflow */
927 ppc_elf_addr16_ha_reloc, /* special_function */
928 "R_PPC_SECTOFF_HA", /* name */
929 FALSE, /* partial_inplace */
931 0xffff, /* dst_mask */
932 FALSE), /* pcrel_offset */
934 /* Marker reloc for TLS. */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
939 FALSE, /* pc_relative */
941 complain_overflow_dont, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_PPC_TLS", /* name */
944 FALSE, /* partial_inplace */
947 FALSE), /* pcrel_offset */
949 /* Computes the load module index of the load module that contains the
950 definition of its TLS sym. */
951 HOWTO (R_PPC_DTPMOD32,
953 2, /* size (0 = byte, 1 = short, 2 = long) */
955 FALSE, /* pc_relative */
957 complain_overflow_dont, /* complain_on_overflow */
958 ppc_elf_unhandled_reloc, /* special_function */
959 "R_PPC_DTPMOD32", /* name */
960 FALSE, /* partial_inplace */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
965 /* Computes a dtv-relative displacement, the difference between the value
966 of sym+add and the base address of the thread-local storage block that
967 contains the definition of sym, minus 0x8000. */
968 HOWTO (R_PPC_DTPREL32,
970 2, /* size (0 = byte, 1 = short, 2 = long) */
972 FALSE, /* pc_relative */
974 complain_overflow_dont, /* complain_on_overflow */
975 ppc_elf_unhandled_reloc, /* special_function */
976 "R_PPC_DTPREL32", /* name */
977 FALSE, /* partial_inplace */
979 0xffffffff, /* dst_mask */
980 FALSE), /* pcrel_offset */
982 /* A 16 bit dtprel reloc. */
983 HOWTO (R_PPC_DTPREL16,
985 1, /* size (0 = byte, 1 = short, 2 = long) */
987 FALSE, /* pc_relative */
989 complain_overflow_signed, /* complain_on_overflow */
990 ppc_elf_unhandled_reloc, /* special_function */
991 "R_PPC_DTPREL16", /* name */
992 FALSE, /* partial_inplace */
994 0xffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
997 /* Like DTPREL16, but no overflow. */
998 HOWTO (R_PPC_DTPREL16_LO,
1000 1, /* size (0 = byte, 1 = short, 2 = long) */
1002 FALSE, /* pc_relative */
1004 complain_overflow_dont, /* complain_on_overflow */
1005 ppc_elf_unhandled_reloc, /* special_function */
1006 "R_PPC_DTPREL16_LO", /* name */
1007 FALSE, /* partial_inplace */
1009 0xffff, /* dst_mask */
1010 FALSE), /* pcrel_offset */
1012 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1013 HOWTO (R_PPC_DTPREL16_HI,
1014 16, /* rightshift */
1015 1, /* size (0 = byte, 1 = short, 2 = long) */
1017 FALSE, /* pc_relative */
1019 complain_overflow_dont, /* complain_on_overflow */
1020 ppc_elf_unhandled_reloc, /* special_function */
1021 "R_PPC_DTPREL16_HI", /* name */
1022 FALSE, /* partial_inplace */
1024 0xffff, /* dst_mask */
1025 FALSE), /* pcrel_offset */
1027 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1028 HOWTO (R_PPC_DTPREL16_HA,
1029 16, /* rightshift */
1030 1, /* size (0 = byte, 1 = short, 2 = long) */
1032 FALSE, /* pc_relative */
1034 complain_overflow_dont, /* complain_on_overflow */
1035 ppc_elf_unhandled_reloc, /* special_function */
1036 "R_PPC_DTPREL16_HA", /* name */
1037 FALSE, /* partial_inplace */
1039 0xffff, /* dst_mask */
1040 FALSE), /* pcrel_offset */
1042 /* Computes a tp-relative displacement, the difference between the value of
1043 sym+add and the value of the thread pointer (r13). */
1044 HOWTO (R_PPC_TPREL32,
1046 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 FALSE, /* pc_relative */
1050 complain_overflow_dont, /* complain_on_overflow */
1051 ppc_elf_unhandled_reloc, /* special_function */
1052 "R_PPC_TPREL32", /* name */
1053 FALSE, /* partial_inplace */
1055 0xffffffff, /* dst_mask */
1056 FALSE), /* pcrel_offset */
1058 /* A 16 bit tprel reloc. */
1059 HOWTO (R_PPC_TPREL16,
1061 1, /* size (0 = byte, 1 = short, 2 = long) */
1063 FALSE, /* pc_relative */
1065 complain_overflow_signed, /* complain_on_overflow */
1066 ppc_elf_unhandled_reloc, /* special_function */
1067 "R_PPC_TPREL16", /* name */
1068 FALSE, /* partial_inplace */
1070 0xffff, /* dst_mask */
1071 FALSE), /* pcrel_offset */
1073 /* Like TPREL16, but no overflow. */
1074 HOWTO (R_PPC_TPREL16_LO,
1076 1, /* size (0 = byte, 1 = short, 2 = long) */
1078 FALSE, /* pc_relative */
1080 complain_overflow_dont, /* complain_on_overflow */
1081 ppc_elf_unhandled_reloc, /* special_function */
1082 "R_PPC_TPREL16_LO", /* name */
1083 FALSE, /* partial_inplace */
1085 0xffff, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1088 /* Like TPREL16_LO, but next higher group of 16 bits. */
1089 HOWTO (R_PPC_TPREL16_HI,
1090 16, /* rightshift */
1091 1, /* size (0 = byte, 1 = short, 2 = long) */
1093 FALSE, /* pc_relative */
1095 complain_overflow_dont, /* complain_on_overflow */
1096 ppc_elf_unhandled_reloc, /* special_function */
1097 "R_PPC_TPREL16_HI", /* name */
1098 FALSE, /* partial_inplace */
1100 0xffff, /* dst_mask */
1101 FALSE), /* pcrel_offset */
1103 /* Like TPREL16_HI, but adjust for low 16 bits. */
1104 HOWTO (R_PPC_TPREL16_HA,
1105 16, /* rightshift */
1106 1, /* size (0 = byte, 1 = short, 2 = long) */
1108 FALSE, /* pc_relative */
1110 complain_overflow_dont, /* complain_on_overflow */
1111 ppc_elf_unhandled_reloc, /* special_function */
1112 "R_PPC_TPREL16_HA", /* name */
1113 FALSE, /* partial_inplace */
1115 0xffff, /* dst_mask */
1116 FALSE), /* pcrel_offset */
1118 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1119 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1120 to the first entry. */
1121 HOWTO (R_PPC_GOT_TLSGD16,
1123 1, /* size (0 = byte, 1 = short, 2 = long) */
1125 FALSE, /* pc_relative */
1127 complain_overflow_signed, /* complain_on_overflow */
1128 ppc_elf_unhandled_reloc, /* special_function */
1129 "R_PPC_GOT_TLSGD16", /* name */
1130 FALSE, /* partial_inplace */
1132 0xffff, /* dst_mask */
1133 FALSE), /* pcrel_offset */
1135 /* Like GOT_TLSGD16, but no overflow. */
1136 HOWTO (R_PPC_GOT_TLSGD16_LO,
1138 1, /* size (0 = byte, 1 = short, 2 = long) */
1140 FALSE, /* pc_relative */
1142 complain_overflow_dont, /* complain_on_overflow */
1143 ppc_elf_unhandled_reloc, /* special_function */
1144 "R_PPC_GOT_TLSGD16_LO", /* name */
1145 FALSE, /* partial_inplace */
1147 0xffff, /* dst_mask */
1148 FALSE), /* pcrel_offset */
1150 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1151 HOWTO (R_PPC_GOT_TLSGD16_HI,
1152 16, /* rightshift */
1153 1, /* size (0 = byte, 1 = short, 2 = long) */
1155 FALSE, /* pc_relative */
1157 complain_overflow_dont, /* complain_on_overflow */
1158 ppc_elf_unhandled_reloc, /* special_function */
1159 "R_PPC_GOT_TLSGD16_HI", /* name */
1160 FALSE, /* partial_inplace */
1162 0xffff, /* dst_mask */
1163 FALSE), /* pcrel_offset */
1165 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1166 HOWTO (R_PPC_GOT_TLSGD16_HA,
1167 16, /* rightshift */
1168 1, /* size (0 = byte, 1 = short, 2 = long) */
1170 FALSE, /* pc_relative */
1172 complain_overflow_dont, /* complain_on_overflow */
1173 ppc_elf_unhandled_reloc, /* special_function */
1174 "R_PPC_GOT_TLSGD16_HA", /* name */
1175 FALSE, /* partial_inplace */
1177 0xffff, /* dst_mask */
1178 FALSE), /* pcrel_offset */
1180 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1181 with values (sym+add)@dtpmod and zero, and computes the offset to the
1183 HOWTO (R_PPC_GOT_TLSLD16,
1185 1, /* size (0 = byte, 1 = short, 2 = long) */
1187 FALSE, /* pc_relative */
1189 complain_overflow_signed, /* complain_on_overflow */
1190 ppc_elf_unhandled_reloc, /* special_function */
1191 "R_PPC_GOT_TLSLD16", /* name */
1192 FALSE, /* partial_inplace */
1194 0xffff, /* dst_mask */
1195 FALSE), /* pcrel_offset */
1197 /* Like GOT_TLSLD16, but no overflow. */
1198 HOWTO (R_PPC_GOT_TLSLD16_LO,
1200 1, /* size (0 = byte, 1 = short, 2 = long) */
1202 FALSE, /* pc_relative */
1204 complain_overflow_dont, /* complain_on_overflow */
1205 ppc_elf_unhandled_reloc, /* special_function */
1206 "R_PPC_GOT_TLSLD16_LO", /* name */
1207 FALSE, /* partial_inplace */
1209 0xffff, /* dst_mask */
1210 FALSE), /* pcrel_offset */
1212 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1213 HOWTO (R_PPC_GOT_TLSLD16_HI,
1214 16, /* rightshift */
1215 1, /* size (0 = byte, 1 = short, 2 = long) */
1217 FALSE, /* pc_relative */
1219 complain_overflow_dont, /* complain_on_overflow */
1220 ppc_elf_unhandled_reloc, /* special_function */
1221 "R_PPC_GOT_TLSLD16_HI", /* name */
1222 FALSE, /* partial_inplace */
1224 0xffff, /* dst_mask */
1225 FALSE), /* pcrel_offset */
1227 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1228 HOWTO (R_PPC_GOT_TLSLD16_HA,
1229 16, /* rightshift */
1230 1, /* size (0 = byte, 1 = short, 2 = long) */
1232 FALSE, /* pc_relative */
1234 complain_overflow_dont, /* complain_on_overflow */
1235 ppc_elf_unhandled_reloc, /* special_function */
1236 "R_PPC_GOT_TLSLD16_HA", /* name */
1237 FALSE, /* partial_inplace */
1239 0xffff, /* dst_mask */
1240 FALSE), /* pcrel_offset */
1242 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1243 the offset to the entry. */
1244 HOWTO (R_PPC_GOT_DTPREL16,
1246 1, /* size (0 = byte, 1 = short, 2 = long) */
1248 FALSE, /* pc_relative */
1250 complain_overflow_signed, /* complain_on_overflow */
1251 ppc_elf_unhandled_reloc, /* special_function */
1252 "R_PPC_GOT_DTPREL16", /* name */
1253 FALSE, /* partial_inplace */
1255 0xffff, /* dst_mask */
1256 FALSE), /* pcrel_offset */
1258 /* Like GOT_DTPREL16, but no overflow. */
1259 HOWTO (R_PPC_GOT_DTPREL16_LO,
1261 1, /* size (0 = byte, 1 = short, 2 = long) */
1263 FALSE, /* pc_relative */
1265 complain_overflow_dont, /* complain_on_overflow */
1266 ppc_elf_unhandled_reloc, /* special_function */
1267 "R_PPC_GOT_DTPREL16_LO", /* name */
1268 FALSE, /* partial_inplace */
1270 0xffff, /* dst_mask */
1271 FALSE), /* pcrel_offset */
1273 /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */
1274 HOWTO (R_PPC_GOT_DTPREL16_HI,
1275 16, /* rightshift */
1276 1, /* size (0 = byte, 1 = short, 2 = long) */
1278 FALSE, /* pc_relative */
1280 complain_overflow_dont, /* complain_on_overflow */
1281 ppc_elf_unhandled_reloc, /* special_function */
1282 "R_PPC_GOT_DTPREL16_HI", /* name */
1283 FALSE, /* partial_inplace */
1285 0xffff, /* dst_mask */
1286 FALSE), /* pcrel_offset */
1288 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1289 HOWTO (R_PPC_GOT_DTPREL16_HA,
1290 16, /* rightshift */
1291 1, /* size (0 = byte, 1 = short, 2 = long) */
1293 FALSE, /* pc_relative */
1295 complain_overflow_dont, /* complain_on_overflow */
1296 ppc_elf_unhandled_reloc, /* special_function */
1297 "R_PPC_GOT_DTPREL16_HA", /* name */
1298 FALSE, /* partial_inplace */
1300 0xffff, /* dst_mask */
1301 FALSE), /* pcrel_offset */
1303 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1304 offset to the entry. */
1305 HOWTO (R_PPC_GOT_TPREL16,
1307 1, /* size (0 = byte, 1 = short, 2 = long) */
1309 FALSE, /* pc_relative */
1311 complain_overflow_signed, /* complain_on_overflow */
1312 ppc_elf_unhandled_reloc, /* special_function */
1313 "R_PPC_GOT_TPREL16", /* name */
1314 FALSE, /* partial_inplace */
1316 0xffff, /* dst_mask */
1317 FALSE), /* pcrel_offset */
1319 /* Like GOT_TPREL16, but no overflow. */
1320 HOWTO (R_PPC_GOT_TPREL16_LO,
1322 1, /* size (0 = byte, 1 = short, 2 = long) */
1324 FALSE, /* pc_relative */
1326 complain_overflow_dont, /* complain_on_overflow */
1327 ppc_elf_unhandled_reloc, /* special_function */
1328 "R_PPC_GOT_TPREL16_LO", /* name */
1329 FALSE, /* partial_inplace */
1331 0xffff, /* dst_mask */
1332 FALSE), /* pcrel_offset */
1334 /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */
1335 HOWTO (R_PPC_GOT_TPREL16_HI,
1336 16, /* rightshift */
1337 1, /* size (0 = byte, 1 = short, 2 = long) */
1339 FALSE, /* pc_relative */
1341 complain_overflow_dont, /* complain_on_overflow */
1342 ppc_elf_unhandled_reloc, /* special_function */
1343 "R_PPC_GOT_TPREL16_HI", /* name */
1344 FALSE, /* partial_inplace */
1346 0xffff, /* dst_mask */
1347 FALSE), /* pcrel_offset */
1349 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1350 HOWTO (R_PPC_GOT_TPREL16_HA,
1351 16, /* rightshift */
1352 1, /* size (0 = byte, 1 = short, 2 = long) */
1354 FALSE, /* pc_relative */
1356 complain_overflow_dont, /* complain_on_overflow */
1357 ppc_elf_unhandled_reloc, /* special_function */
1358 "R_PPC_GOT_TPREL16_HA", /* name */
1359 FALSE, /* partial_inplace */
1361 0xffff, /* dst_mask */
1362 FALSE), /* pcrel_offset */
1364 /* The remaining relocs are from the Embedded ELF ABI, and are not
1365 in the SVR4 ELF ABI. */
1367 /* 32 bit value resulting from the addend minus the symbol. */
1368 HOWTO (R_PPC_EMB_NADDR32, /* type */
1370 2, /* size (0 = byte, 1 = short, 2 = long) */
1372 FALSE, /* pc_relative */
1374 complain_overflow_bitfield, /* complain_on_overflow */
1375 bfd_elf_generic_reloc, /* special_function */
1376 "R_PPC_EMB_NADDR32", /* name */
1377 FALSE, /* partial_inplace */
1379 0xffffffff, /* dst_mask */
1380 FALSE), /* pcrel_offset */
1382 /* 16 bit value resulting from the addend minus the symbol. */
1383 HOWTO (R_PPC_EMB_NADDR16, /* type */
1385 1, /* size (0 = byte, 1 = short, 2 = long) */
1387 FALSE, /* pc_relative */
1389 complain_overflow_bitfield, /* complain_on_overflow */
1390 bfd_elf_generic_reloc, /* special_function */
1391 "R_PPC_EMB_NADDR16", /* name */
1392 FALSE, /* partial_inplace */
1394 0xffff, /* dst_mask */
1395 FALSE), /* pcrel_offset */
1397 /* 16 bit value resulting from the addend minus the symbol. */
1398 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
1400 1, /* size (0 = byte, 1 = short, 2 = long) */
1402 FALSE, /* pc_relative */
1404 complain_overflow_dont,/* complain_on_overflow */
1405 bfd_elf_generic_reloc, /* special_function */
1406 "R_PPC_EMB_ADDR16_LO", /* name */
1407 FALSE, /* partial_inplace */
1409 0xffff, /* dst_mask */
1410 FALSE), /* pcrel_offset */
1412 /* The high order 16 bits of the addend minus the symbol. */
1413 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
1414 16, /* rightshift */
1415 1, /* size (0 = byte, 1 = short, 2 = long) */
1417 FALSE, /* pc_relative */
1419 complain_overflow_dont, /* complain_on_overflow */
1420 bfd_elf_generic_reloc, /* special_function */
1421 "R_PPC_EMB_NADDR16_HI", /* name */
1422 FALSE, /* partial_inplace */
1424 0xffff, /* dst_mask */
1425 FALSE), /* pcrel_offset */
1427 /* The high order 16 bits of the result of the addend minus the address,
1428 plus 1 if the contents of the low 16 bits, treated as a signed number,
1430 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
1431 16, /* rightshift */
1432 1, /* size (0 = byte, 1 = short, 2 = long) */
1434 FALSE, /* pc_relative */
1436 complain_overflow_dont, /* complain_on_overflow */
1437 ppc_elf_addr16_ha_reloc, /* special_function */
1438 "R_PPC_EMB_NADDR16_HA", /* name */
1439 FALSE, /* partial_inplace */
1441 0xffff, /* dst_mask */
1442 FALSE), /* pcrel_offset */
1444 /* 16 bit value resulting from allocating a 4 byte word to hold an
1445 address in the .sdata section, and returning the offset from
1446 _SDA_BASE_ for that relocation. */
1447 HOWTO (R_PPC_EMB_SDAI16, /* type */
1449 1, /* size (0 = byte, 1 = short, 2 = long) */
1451 FALSE, /* pc_relative */
1453 complain_overflow_bitfield, /* complain_on_overflow */
1454 bfd_elf_generic_reloc, /* special_function */
1455 "R_PPC_EMB_SDAI16", /* name */
1456 FALSE, /* partial_inplace */
1458 0xffff, /* dst_mask */
1459 FALSE), /* pcrel_offset */
1461 /* 16 bit value resulting from allocating a 4 byte word to hold an
1462 address in the .sdata2 section, and returning the offset from
1463 _SDA2_BASE_ for that relocation. */
1464 HOWTO (R_PPC_EMB_SDA2I16, /* type */
1466 1, /* size (0 = byte, 1 = short, 2 = long) */
1468 FALSE, /* pc_relative */
1470 complain_overflow_bitfield, /* complain_on_overflow */
1471 bfd_elf_generic_reloc, /* special_function */
1472 "R_PPC_EMB_SDA2I16", /* name */
1473 FALSE, /* partial_inplace */
1475 0xffff, /* dst_mask */
1476 FALSE), /* pcrel_offset */
1478 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
1479 small data items. */
1480 HOWTO (R_PPC_EMB_SDA2REL, /* type */
1482 1, /* size (0 = byte, 1 = short, 2 = long) */
1484 FALSE, /* pc_relative */
1486 complain_overflow_signed, /* complain_on_overflow */
1487 bfd_elf_generic_reloc, /* special_function */
1488 "R_PPC_EMB_SDA2REL", /* name */
1489 FALSE, /* partial_inplace */
1491 0xffff, /* dst_mask */
1492 FALSE), /* pcrel_offset */
1494 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
1495 signed offset from the appropriate base, and filling in the register
1496 field with the appropriate register (0, 2, or 13). */
1497 HOWTO (R_PPC_EMB_SDA21, /* type */
1499 2, /* size (0 = byte, 1 = short, 2 = long) */
1501 FALSE, /* pc_relative */
1503 complain_overflow_signed, /* complain_on_overflow */
1504 bfd_elf_generic_reloc, /* special_function */
1505 "R_PPC_EMB_SDA21", /* name */
1506 FALSE, /* partial_inplace */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1511 /* Relocation not handled: R_PPC_EMB_MRKREF */
1512 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
1513 /* Relocation not handled: R_PPC_EMB_RELST_LO */
1514 /* Relocation not handled: R_PPC_EMB_RELST_HI */
1515 /* Relocation not handled: R_PPC_EMB_RELST_HA */
1516 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
1518 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
1519 in the 16 bit signed offset from the appropriate base, and filling in the
1520 register field with the appropriate register (0, 2, or 13). */
1521 HOWTO (R_PPC_EMB_RELSDA, /* type */
1523 1, /* size (0 = byte, 1 = short, 2 = long) */
1525 TRUE, /* pc_relative */
1527 complain_overflow_signed, /* complain_on_overflow */
1528 bfd_elf_generic_reloc, /* special_function */
1529 "R_PPC_EMB_RELSDA", /* name */
1530 FALSE, /* partial_inplace */
1532 0xffff, /* dst_mask */
1533 FALSE), /* pcrel_offset */
1535 /* Phony relocs to handle branch stubs. */
1536 HOWTO (R_PPC_RELAX32, /* type */
1540 FALSE, /* pc_relative */
1542 complain_overflow_dont, /* complain_on_overflow */
1543 bfd_elf_generic_reloc, /* special_function */
1544 "R_PPC_RELAX32", /* name */
1545 FALSE, /* partial_inplace */
1548 FALSE), /* pcrel_offset */
1550 HOWTO (R_PPC_RELAX32PC, /* type */
1554 FALSE, /* pc_relative */
1556 complain_overflow_dont, /* complain_on_overflow */
1557 bfd_elf_generic_reloc, /* special_function */
1558 "R_PPC_RELAX32PC", /* name */
1559 FALSE, /* partial_inplace */
1562 FALSE), /* pcrel_offset */
1564 /* GNU extension to record C++ vtable hierarchy. */
1565 HOWTO (R_PPC_GNU_VTINHERIT, /* type */
1567 0, /* size (0 = byte, 1 = short, 2 = long) */
1569 FALSE, /* pc_relative */
1571 complain_overflow_dont, /* complain_on_overflow */
1572 NULL, /* special_function */
1573 "R_PPC_GNU_VTINHERIT", /* name */
1574 FALSE, /* partial_inplace */
1577 FALSE), /* pcrel_offset */
1579 /* GNU extension to record C++ vtable member usage. */
1580 HOWTO (R_PPC_GNU_VTENTRY, /* type */
1582 0, /* size (0 = byte, 1 = short, 2 = long) */
1584 FALSE, /* pc_relative */
1586 complain_overflow_dont, /* complain_on_overflow */
1587 NULL, /* special_function */
1588 "R_PPC_GNU_VTENTRY", /* name */
1589 FALSE, /* partial_inplace */
1592 FALSE), /* pcrel_offset */
1594 /* Phony reloc to handle AIX style TOC entries. */
1595 HOWTO (R_PPC_TOC16, /* type */
1597 1, /* size (0 = byte, 1 = short, 2 = long) */
1599 FALSE, /* pc_relative */
1601 complain_overflow_signed, /* complain_on_overflow */
1602 bfd_elf_generic_reloc, /* special_function */
1603 "R_PPC_TOC16", /* name */
1604 FALSE, /* partial_inplace */
1606 0xffff, /* dst_mask */
1607 FALSE), /* pcrel_offset */
1610 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
1613 ppc_elf_howto_init (void)
1615 unsigned int i, type;
1618 i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
1621 type = ppc_elf_howto_raw[i].type;
1622 if (type >= (sizeof (ppc_elf_howto_table)
1623 / sizeof (ppc_elf_howto_table[0])))
1625 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
1629 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
1631 static const int shared_stub_entry[] =
1633 0x7c0802a6, /* mflr 0 */
1634 0x429f0005, /* bcl 20, 31, .Lxxx */
1635 0x7d6802a6, /* mflr 11 */
1636 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */
1637 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */
1638 0x7c0803a6, /* mtlr 0 */
1639 0x7d6903a6, /* mtctr 11 */
1640 0x4e800420, /* bctr */
1643 static const int stub_entry[] =
1645 0x3d600000, /* lis 11,xxx@ha */
1646 0x396b0000, /* addi 11,11,xxx@l */
1647 0x7d6903a6, /* mtctr 11 */
1648 0x4e800420, /* bctr */
1653 ppc_elf_relax_section (bfd *abfd,
1655 struct bfd_link_info *link_info,
1660 struct one_fixup *next;
1666 Elf_Internal_Shdr *symtab_hdr;
1667 bfd_byte *contents = NULL;
1668 Elf_Internal_Sym *isymbuf = NULL;
1669 Elf_Internal_Rela *internal_relocs = NULL;
1670 Elf_Internal_Rela *irel, *irelend;
1671 struct one_fixup *fixups = NULL;
1672 bfd_boolean changed;
1673 struct ppc_elf_link_hash_table *ppc_info;
1674 bfd_size_type trampoff;
1678 /* Nothing to do if there are no relocations. */
1679 if ((isec->flags & SEC_RELOC) == 0 || isec->reloc_count == 0)
1682 /* If needed, initialize this section's cooked size. */
1683 if (isec->_cooked_size == 0)
1684 isec->_cooked_size = isec->_raw_size;
1686 trampoff = (isec->_cooked_size + 3) & (bfd_vma) -4;
1687 /* Space for a branch around any trampolines. */
1690 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1692 /* Get a copy of the native relocations. */
1693 internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
1694 link_info->keep_memory);
1695 if (internal_relocs == NULL)
1698 ppc_info = ppc_elf_hash_table (link_info);
1699 irelend = internal_relocs + isec->reloc_count;
1701 /* Get the section contents. */
1702 /* Get cached copy if it exists. */
1703 if (elf_section_data (isec)->this_hdr.contents != NULL)
1704 contents = elf_section_data (isec)->this_hdr.contents;
1707 /* Go get them off disk. */
1708 contents = bfd_malloc (isec->_raw_size);
1709 if (contents == NULL)
1712 if (!bfd_get_section_contents (abfd, isec, contents, 0, isec->_raw_size))
1716 for (irel = internal_relocs; irel < irelend; irel++)
1718 unsigned long r_type = ELF32_R_TYPE (irel->r_info);
1719 bfd_vma symaddr, reladdr, toff, roff;
1721 struct one_fixup *f;
1722 size_t insn_offset = 0;
1723 bfd_vma max_branch_offset, val;
1730 case R_PPC_LOCAL24PC:
1731 case R_PPC_PLTREL24:
1732 max_branch_offset = 1 << 25;
1736 case R_PPC_REL14_BRTAKEN:
1737 case R_PPC_REL14_BRNTAKEN:
1738 max_branch_offset = 1 << 15;
1745 /* Get the value of the symbol referred to by the reloc. */
1746 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
1748 /* A local symbol. */
1749 Elf_Internal_Sym *isym;
1751 /* Read this BFD's local symbols. */
1752 if (isymbuf == NULL)
1754 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1755 if (isymbuf == NULL)
1756 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
1757 symtab_hdr->sh_info, 0,
1762 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1763 if (isym->st_shndx == SHN_UNDEF)
1764 continue; /* We can't do anything with undefined symbols. */
1765 else if (isym->st_shndx == SHN_ABS)
1766 tsec = bfd_abs_section_ptr;
1767 else if (isym->st_shndx == SHN_COMMON)
1768 tsec = bfd_com_section_ptr;
1770 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1772 toff = isym->st_value;
1776 /* Global symbol handling. */
1778 struct elf_link_hash_entry *h;
1780 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1781 h = elf_sym_hashes (abfd)[indx];
1783 while (h->root.type == bfd_link_hash_indirect
1784 || h->root.type == bfd_link_hash_warning)
1785 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1787 if (r_type == R_PPC_PLTREL24
1788 && ppc_info->plt != NULL
1789 && h->plt.offset != (bfd_vma) -1)
1791 tsec = ppc_info->plt;
1792 toff = h->plt.offset;
1794 else if (h->root.type == bfd_link_hash_defined
1795 || h->root.type == bfd_link_hash_defweak)
1797 tsec = h->root.u.def.section;
1798 toff = h->root.u.def.value;
1804 /* If the branch and target are in the same section, you have
1805 no hope of adding stubs. We'll error out later should the
1810 toff += irel->r_addend;
1811 if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
1812 toff = _bfd_merged_section_offset (abfd, &tsec,
1813 elf_section_data (tsec)->sec_info,
1816 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
1818 roff = irel->r_offset;
1819 reladdr = isec->output_section->vma + isec->output_offset + roff;
1821 /* If the branch is in range, no need to do anything. */
1822 if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
1825 /* Look for an existing fixup to this address. */
1826 for (f = fixups; f ; f = f->next)
1827 if (f->tsec == tsec && f->toff == toff)
1833 unsigned long stub_rtype;
1835 val = trampoff - roff;
1836 if (val >= max_branch_offset)
1837 /* Oh dear, we can't reach a trampoline. Don't try to add
1838 one. We'll report an error later. */
1841 if (link_info->shared)
1843 size = 4 * ARRAY_SIZE (shared_stub_entry);
1845 stub_rtype = R_PPC_RELAX32PC;
1849 size = 4 * ARRAY_SIZE (stub_entry);
1851 stub_rtype = R_PPC_RELAX32;
1854 /* Hijack the old relocation. Since we need two
1855 relocations for this use a "composite" reloc. */
1856 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1858 irel->r_offset = trampoff + insn_offset;
1860 /* Record the fixup so we don't do it again this section. */
1861 f = bfd_malloc (sizeof (*f));
1865 f->trampoff = trampoff;
1872 val = f->trampoff - roff;
1873 if (val >= max_branch_offset)
1876 /* Nop out the reloc, since we're finalizing things here. */
1877 irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
1880 /* Fix up the existing branch to hit the trampoline. */
1881 hit_addr = contents + roff;
1885 case R_PPC_LOCAL24PC:
1886 case R_PPC_PLTREL24:
1887 t0 = bfd_get_32 (abfd, hit_addr);
1889 t0 |= val & 0x3fffffc;
1890 bfd_put_32 (abfd, t0, hit_addr);
1894 case R_PPC_REL14_BRTAKEN:
1895 case R_PPC_REL14_BRNTAKEN:
1896 t0 = bfd_get_32 (abfd, hit_addr);
1899 bfd_put_32 (abfd, t0, hit_addr);
1904 /* Write out the trampolines. */
1905 changed = fixups != NULL;
1915 struct one_fixup *f = fixups;
1916 fixups = fixups->next;
1921 contents = bfd_realloc (contents, trampoff);
1922 if (contents == NULL)
1925 isec->_cooked_size = (isec->_cooked_size + 3) & (bfd_vma) -4;
1926 /* Branch around the trampolines. */
1927 val = trampoff - isec->_cooked_size + 0x48000000;
1928 dest = contents + isec->_cooked_size;
1929 isec->_cooked_size = trampoff;
1930 bfd_put_32 (abfd, val, dest);
1933 if (link_info->shared)
1935 stub = shared_stub_entry;
1936 size = ARRAY_SIZE (shared_stub_entry);
1941 size = ARRAY_SIZE (stub_entry);
1945 while (dest < contents + trampoff)
1947 bfd_put_32 (abfd, stub[i], dest);
1953 BFD_ASSERT (i == 0);
1957 && symtab_hdr->contents != (unsigned char *) isymbuf)
1959 if (! link_info->keep_memory)
1963 /* Cache the symbols for elf_link_input_bfd. */
1964 symtab_hdr->contents = (unsigned char *) isymbuf;
1968 if (contents != NULL
1969 && elf_section_data (isec)->this_hdr.contents != contents)
1971 if (!changed && !link_info->keep_memory)
1975 /* Cache the section contents for elf_link_input_bfd. */
1976 elf_section_data (isec)->this_hdr.contents = contents;
1980 if (elf_section_data (isec)->relocs != internal_relocs)
1983 free (internal_relocs);
1985 elf_section_data (isec)->relocs = internal_relocs;
1992 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
1994 if (contents != NULL
1995 && elf_section_data (isec)->this_hdr.contents != contents)
1997 if (internal_relocs != NULL
1998 && elf_section_data (isec)->relocs != internal_relocs)
1999 free (internal_relocs);
2003 static reloc_howto_type *
2004 ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2005 bfd_reloc_code_real_type code)
2007 enum elf_ppc_reloc_type r;
2009 /* Initialize howto table if not already done. */
2010 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2011 ppc_elf_howto_init ();
2018 case BFD_RELOC_NONE: r = R_PPC_NONE; break;
2019 case BFD_RELOC_32: r = R_PPC_ADDR32; break;
2020 case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break;
2021 case BFD_RELOC_16: r = R_PPC_ADDR16; break;
2022 case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break;
2023 case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break;
2024 case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break;
2025 case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break;
2026 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break;
2027 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break;
2028 case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break;
2029 case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break;
2030 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break;
2031 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break;
2032 case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break;
2033 case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break;
2034 case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break;
2035 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break;
2036 case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break;
2037 case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break;
2038 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break;
2039 case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break;
2040 case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break;
2041 case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break;
2042 case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break;
2043 case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break;
2044 case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break;
2045 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break;
2046 case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break;
2047 case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break;
2048 case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break;
2049 case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break;
2050 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break;
2051 case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break;
2052 case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break;
2053 case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break;
2054 case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break;
2055 case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break;
2056 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break;
2057 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break;
2058 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break;
2059 case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break;
2060 case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break;
2061 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break;
2062 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break;
2063 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break;
2064 case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break;
2065 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break;
2066 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break;
2067 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break;
2068 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break;
2069 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break;
2070 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break;
2071 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break;
2072 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break;
2073 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break;
2074 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break;
2075 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break;
2076 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break;
2077 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break;
2078 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break;
2079 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break;
2080 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break;
2081 case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break;
2082 case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break;
2083 case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break;
2084 case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break;
2085 case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break;
2086 case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break;
2087 case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break;
2088 case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break;
2089 case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break;
2090 case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break;
2091 case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break;
2092 case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break;
2093 case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break;
2094 case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break;
2095 case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break;
2096 case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break;
2097 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break;
2098 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break;
2101 return ppc_elf_howto_table[r];
2104 /* Set the howto pointer for a PowerPC ELF reloc. */
2107 ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
2109 Elf_Internal_Rela *dst)
2111 /* Initialize howto table if not already done. */
2112 if (!ppc_elf_howto_table[R_PPC_ADDR32])
2113 ppc_elf_howto_init ();
2115 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
2116 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
2119 /* Handle the R_PPC_ADDR16_HA reloc. */
2121 static bfd_reloc_status_type
2122 ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
2123 arelent *reloc_entry,
2125 void *data ATTRIBUTE_UNUSED,
2126 asection *input_section,
2128 char **error_message ATTRIBUTE_UNUSED)
2132 if (output_bfd != NULL)
2134 reloc_entry->address += input_section->output_offset;
2135 return bfd_reloc_ok;
2138 if (reloc_entry->address > input_section->_cooked_size)
2139 return bfd_reloc_outofrange;
2141 if (bfd_is_com_section (symbol->section))
2144 relocation = symbol->value;
2146 relocation += symbol->section->output_section->vma;
2147 relocation += symbol->section->output_offset;
2148 relocation += reloc_entry->addend;
2150 reloc_entry->addend += (relocation & 0x8000) << 1;
2152 return bfd_reloc_continue;
2155 static bfd_reloc_status_type
2156 ppc_elf_unhandled_reloc (bfd *abfd,
2157 arelent *reloc_entry,
2160 asection *input_section,
2162 char **error_message)
2164 /* If this is a relocatable link (output_bfd test tells us), just
2165 call the generic function. Any adjustment will be done at final
2167 if (output_bfd != NULL)
2168 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2169 input_section, output_bfd, error_message);
2171 if (error_message != NULL)
2173 static char buf[60];
2174 sprintf (buf, _("generic linker can't handle %s"),
2175 reloc_entry->howto->name);
2176 *error_message = buf;
2178 return bfd_reloc_dangerous;
2181 /* Fix bad default arch selected for a 32 bit input bfd when the
2182 default is 64 bit. */
2185 ppc_elf_object_p (bfd *abfd)
2187 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
2189 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2191 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
2193 /* Relies on arch after 64 bit default being 32 bit default. */
2194 abfd->arch_info = abfd->arch_info->next;
2195 BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
2201 /* Function to set whether a module needs the -mrelocatable bit set. */
2204 ppc_elf_set_private_flags (bfd *abfd, flagword flags)
2206 BFD_ASSERT (!elf_flags_init (abfd)
2207 || elf_elfheader (abfd)->e_flags == flags);
2209 elf_elfheader (abfd)->e_flags = flags;
2210 elf_flags_init (abfd) = TRUE;
2214 /* Merge backend specific data from an object file to the output
2215 object file when linking. */
2218 ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2224 /* Check if we have the same endianess. */
2225 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2228 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2229 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2232 new_flags = elf_elfheader (ibfd)->e_flags;
2233 old_flags = elf_elfheader (obfd)->e_flags;
2234 if (!elf_flags_init (obfd))
2236 /* First call, no flags set. */
2237 elf_flags_init (obfd) = TRUE;
2238 elf_elfheader (obfd)->e_flags = new_flags;
2241 /* Compatible flags are ok. */
2242 else if (new_flags == old_flags)
2245 /* Incompatible flags. */
2248 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib
2249 to be linked with either. */
2251 if ((new_flags & EF_PPC_RELOCATABLE) != 0
2252 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
2255 (*_bfd_error_handler)
2256 (_("%s: compiled with -mrelocatable and linked with "
2257 "modules compiled normally"),
2258 bfd_archive_filename (ibfd));
2260 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
2261 && (old_flags & EF_PPC_RELOCATABLE) != 0)
2264 (*_bfd_error_handler)
2265 (_("%s: compiled normally and linked with "
2266 "modules compiled with -mrelocatable"),
2267 bfd_archive_filename (ibfd));
2270 /* The output is -mrelocatable-lib iff both the input files are. */
2271 if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
2272 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
2274 /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
2275 but each input file is either -mrelocatable or -mrelocatable-lib. */
2276 if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
2277 && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
2278 && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
2279 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
2281 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
2282 any module uses it. */
2283 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
2285 new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
2286 old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
2288 /* Warn about any other mismatches. */
2289 if (new_flags != old_flags)
2292 (*_bfd_error_handler)
2293 (_("%s: uses different e_flags (0x%lx) fields "
2294 "than previous modules (0x%lx)"),
2295 bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags);
2300 bfd_set_error (bfd_error_bad_value);
2308 /* Handle a PowerPC specific section when reading an object file. This
2309 is called when elfcode.h finds a section with an unknown type. */
2312 ppc_elf_section_from_shdr (bfd *abfd, Elf_Internal_Shdr *hdr, const char *name)
2317 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
2320 newsect = hdr->bfd_section;
2321 flags = bfd_get_section_flags (abfd, newsect);
2322 if (hdr->sh_flags & SHF_EXCLUDE)
2323 flags |= SEC_EXCLUDE;
2325 if (hdr->sh_type == SHT_ORDERED)
2326 flags |= SEC_SORT_ENTRIES;
2328 bfd_set_section_flags (abfd, newsect, flags);
2332 /* Set up any other section flags and such that may be necessary. */
2335 ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2336 Elf_Internal_Shdr *shdr,
2339 if ((asect->flags & SEC_EXCLUDE) != 0)
2340 shdr->sh_flags |= SHF_EXCLUDE;
2342 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
2343 shdr->sh_type = SHT_ORDERED;
2348 /* Find a linker generated pointer with a given addend and type. */
2350 static elf_linker_section_pointers_t *
2351 elf_find_pointer_linker_section
2352 (elf_linker_section_pointers_t *linker_pointers,
2354 elf_linker_section_t *lsect)
2356 for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
2357 if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
2358 return linker_pointers;
2363 /* Allocate a pointer to live in a linker created section. */
2366 elf_create_pointer_linker_section (bfd *abfd,
2367 struct bfd_link_info *info,
2368 elf_linker_section_t *lsect,
2369 struct elf_link_hash_entry *h,
2370 const Elf_Internal_Rela *rel)
2372 elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
2373 elf_linker_section_pointers_t *linker_section_ptr;
2374 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2377 BFD_ASSERT (lsect != NULL);
2379 /* Is this a global symbol? */
2382 struct ppc_elf_link_hash_entry *eh;
2384 /* Has this symbol already been allocated? If so, our work is done. */
2385 eh = (struct ppc_elf_link_hash_entry *) h;
2386 if (elf_find_pointer_linker_section (eh->linker_section_pointer,
2391 ptr_linker_section_ptr = &eh->linker_section_pointer;
2392 /* Make sure this symbol is output as a dynamic symbol. */
2393 if (h->dynindx == -1)
2395 if (! _bfd_elf_link_record_dynamic_symbol (info, h))
2399 if (lsect->rel_section)
2400 lsect->rel_section->_raw_size += sizeof (Elf32_External_Rela);
2404 /* Allocation of a pointer to a local symbol. */
2405 elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
2407 /* Allocate a table to hold the local symbols if first time. */
2410 unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
2413 amt *= sizeof (elf_linker_section_pointers_t *);
2414 ptr = bfd_zalloc (abfd, amt);
2419 elf_local_ptr_offsets (abfd) = ptr;
2422 /* Has this symbol already been allocated? If so, our work is done. */
2423 if (elf_find_pointer_linker_section (ptr[r_symndx],
2428 ptr_linker_section_ptr = &ptr[r_symndx];
2432 /* If we are generating a shared object, we need to
2433 output a R_<xxx>_RELATIVE reloc so that the
2434 dynamic linker can adjust this GOT entry. */
2435 BFD_ASSERT (lsect->rel_section != NULL);
2436 lsect->rel_section->_raw_size += sizeof (Elf32_External_Rela);
2440 /* Allocate space for a pointer in the linker section, and allocate
2441 a new pointer record from internal memory. */
2442 BFD_ASSERT (ptr_linker_section_ptr != NULL);
2443 amt = sizeof (elf_linker_section_pointers_t);
2444 linker_section_ptr = bfd_alloc (abfd, amt);
2446 if (!linker_section_ptr)
2449 linker_section_ptr->next = *ptr_linker_section_ptr;
2450 linker_section_ptr->addend = rel->r_addend;
2451 linker_section_ptr->lsect = lsect;
2452 linker_section_ptr->written_address_p = FALSE;
2453 *ptr_linker_section_ptr = linker_section_ptr;
2455 linker_section_ptr->offset = lsect->section->_raw_size;
2456 lsect->section->_raw_size += 4;
2460 "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
2461 lsect->name, (long) linker_section_ptr->offset,
2462 (long) lsect->section->_raw_size);
2468 #define bfd_put_ptr(BFD, VAL, ADDR) bfd_put_32 (BFD, VAL, ADDR)
2470 /* Fill in the address for a pointer generated in a linker section. */
2473 elf_finish_pointer_linker_section (bfd *output_bfd,
2475 struct bfd_link_info *info,
2476 elf_linker_section_t *lsect,
2477 struct elf_link_hash_entry *h,
2479 const Elf_Internal_Rela *rel,
2482 elf_linker_section_pointers_t *linker_section_ptr;
2484 BFD_ASSERT (lsect != NULL);
2488 /* Handle global symbol. */
2489 struct ppc_elf_link_hash_entry *eh;
2491 eh = (struct ppc_elf_link_hash_entry *) h;
2493 = elf_find_pointer_linker_section (eh->linker_section_pointer,
2497 BFD_ASSERT (linker_section_ptr != NULL);
2499 if (! elf_hash_table (info)->dynamic_sections_created
2502 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
2504 /* This is actually a static link, or it is a
2505 -Bsymbolic link and the symbol is defined
2506 locally. We must initialize this entry in the
2509 When doing a dynamic link, we create a .rela.<xxx>
2510 relocation entry to initialize the value. This
2511 is done in the finish_dynamic_symbol routine. */
2512 if (!linker_section_ptr->written_address_p)
2514 linker_section_ptr->written_address_p = TRUE;
2515 bfd_put_ptr (output_bfd,
2516 relocation + linker_section_ptr->addend,
2517 (lsect->section->contents
2518 + linker_section_ptr->offset));
2524 /* Handle local symbol. */
2525 unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
2526 BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
2527 BFD_ASSERT (elf_local_ptr_offsets (input_bfd)[r_symndx] != NULL);
2528 linker_section_ptr = (elf_find_pointer_linker_section
2529 (elf_local_ptr_offsets (input_bfd)[r_symndx],
2533 BFD_ASSERT (linker_section_ptr != NULL);
2535 /* Write out pointer if it hasn't been rewritten out before. */
2536 if (!linker_section_ptr->written_address_p)
2538 linker_section_ptr->written_address_p = TRUE;
2539 bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
2540 lsect->section->contents + linker_section_ptr->offset);
2544 /* We need to generate a relative reloc for the dynamic
2547 asection *srel = lsect->rel_section;
2548 Elf_Internal_Rela outrel[MAX_INT_RELS_PER_EXT_REL];
2550 const struct elf_backend_data *bed;
2553 BFD_ASSERT (srel != NULL);
2555 bed = get_elf_backend_data (output_bfd);
2556 for (i = 0; i < bed->s->int_rels_per_ext_rel; i++)
2558 outrel[i].r_offset = (lsect->section->output_section->vma
2559 + lsect->section->output_offset
2560 + linker_section_ptr->offset);
2561 outrel[i].r_info = 0;
2562 outrel[i].r_addend = 0;
2564 outrel[0].r_info = ELF32_R_INFO (0, relative_reloc);
2565 erel = lsect->section->contents;
2566 erel += (elf_section_data (lsect->section)->rel_count++
2567 * sizeof (Elf32_External_Rela));
2568 bfd_elf32_swap_reloca_out (output_bfd, outrel, erel);
2573 relocation = (lsect->section->output_offset
2574 + linker_section_ptr->offset
2575 - lsect->sym_offset);
2579 "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
2580 lsect->name, (long) relocation, (long) relocation);
2583 /* Subtract out the addend, because it will get added back in by the normal
2585 return relocation - linker_section_ptr->addend;
2588 /* Create a special linker section */
2589 static elf_linker_section_t *
2590 ppc_elf_create_linker_section (bfd *abfd,
2591 struct bfd_link_info *info,
2592 enum elf_linker_section_enum which)
2594 elf_linker_section_t *lsect;
2595 struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
2600 const char *rel_name;
2601 const char *sym_name;
2604 /* Both of these sections are (technically) created by the user
2605 putting data in them, so they shouldn't be marked
2608 The linker creates them so it has somewhere to attach their
2609 respective symbols. In fact, if they were empty it would
2610 be OK to leave the symbol set to 0 (or any random number), because
2611 the appropriate register should never be used. */
2612 flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
2621 case LINKER_SECTION_SDATA: /* .sdata/.sbss section */
2623 rel_name = ".rela.sdata";
2624 sym_name = "_SDA_BASE_";
2627 case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */
2629 rel_name = ".rela.sdata2";
2630 sym_name = "_SDA2_BASE_";
2631 flags |= SEC_READONLY;
2635 /* Record the first bfd that needs the special sections. */
2636 if (!htab->elf.dynobj)
2637 htab->elf.dynobj = abfd;
2639 amt = sizeof (elf_linker_section_t);
2640 lsect = bfd_zalloc (htab->elf.dynobj, amt);
2642 lsect->sym_offset = sym_offset;
2644 /* See if the sections already exist. */
2645 s = bfd_get_section_by_name (htab->elf.dynobj, name);
2646 if (s == NULL || (s->flags & flags) != flags)
2648 s = bfd_make_section_anyway (htab->elf.dynobj, name);
2650 || !bfd_set_section_flags (htab->elf.dynobj, s, flags))
2655 if (bfd_get_section_alignment (htab->elf.dynobj, s) < 2
2656 && !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
2659 s->_raw_size = align_power (s->_raw_size, 2);
2662 fprintf (stderr, "Creating section %s, current size = %ld\n",
2663 name, (long) s->_raw_size);
2668 struct elf_link_hash_entry *h;
2669 struct bfd_link_hash_entry *bh;
2672 fprintf (stderr, "Adding %s to section %s\n", sym_name, name);
2674 bh = bfd_link_hash_lookup (info->hash, sym_name,
2675 FALSE, FALSE, FALSE);
2677 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
2678 && !(_bfd_generic_link_add_one_symbol
2679 (info, abfd, sym_name, BSF_GLOBAL, s, sym_offset, NULL,
2680 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
2682 h = (struct elf_link_hash_entry *) bh;
2684 h->type = STT_OBJECT;
2685 lsect->sym_hash = h;
2688 && ! _bfd_elf_link_record_dynamic_symbol (info, h))
2694 s = bfd_make_section_anyway (htab->elf.dynobj, rel_name);
2695 lsect->rel_section = s;
2696 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2697 | SEC_LINKER_CREATED | SEC_READONLY);
2699 || ! bfd_set_section_flags (htab->elf.dynobj, s, flags)
2700 || ! bfd_set_section_alignment (htab->elf.dynobj, s, 2))
2707 /* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we
2708 need to bump up the number of section headers. */
2711 ppc_elf_additional_program_headers (bfd *abfd)
2718 s = bfd_get_section_by_name (abfd, ".interp");
2722 s = bfd_get_section_by_name (abfd, ".sbss2");
2723 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
2726 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
2727 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
2733 /* Modify the segment map if needed. */
2736 ppc_elf_modify_segment_map (bfd *abfd ATTRIBUTE_UNUSED,
2737 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2742 /* The powerpc .got has a blrl instruction in it. Mark it executable. */
2745 ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
2747 struct ppc_elf_link_hash_table *htab;
2751 if (!_bfd_elf_create_got_section (abfd, info))
2754 htab = ppc_elf_hash_table (info);
2755 htab->got = s = bfd_get_section_by_name (abfd, ".got");
2759 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2760 | SEC_LINKER_CREATED);
2761 if (!bfd_set_section_flags (abfd, s, flags))
2764 htab->relgot = bfd_make_section (abfd, ".rela.got");
2766 || ! bfd_set_section_flags (abfd, htab->relgot,
2767 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
2768 | SEC_IN_MEMORY | SEC_LINKER_CREATED
2770 || ! bfd_set_section_alignment (abfd, htab->relgot, 2))
2776 /* We have to create .dynsbss and .rela.sbss here so that they get mapped
2777 to output sections (just like _bfd_elf_create_dynamic_sections has
2778 to create .dynbss and .rela.bss). */
2781 ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2783 struct ppc_elf_link_hash_table *htab;
2787 htab = ppc_elf_hash_table (info);
2789 if (htab->got == NULL
2790 && !ppc_elf_create_got (abfd, info))
2793 if (!_bfd_elf_create_dynamic_sections (abfd, info))
2796 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2797 | SEC_LINKER_CREATED);
2799 htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss");
2800 htab->dynsbss = s = bfd_make_section (abfd, ".dynsbss");
2802 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
2807 htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss");
2808 htab->relsbss = s = bfd_make_section (abfd, ".rela.sbss");
2810 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
2811 || ! bfd_set_section_alignment (abfd, s, 2))
2815 htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt");
2816 htab->plt = s = bfd_get_section_by_name (abfd, ".plt");
2820 flags = SEC_ALLOC | SEC_CODE | SEC_IN_MEMORY | SEC_LINKER_CREATED;
2821 return bfd_set_section_flags (abfd, s, flags);
2824 /* Adjust a symbol defined by a dynamic object and referenced by a
2825 regular object. The current definition is in some section of the
2826 dynamic object, but we're not including those sections. We have to
2827 change the definition to something the rest of the link can
2831 ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2832 struct elf_link_hash_entry *h)
2834 struct ppc_elf_link_hash_table *htab;
2836 unsigned int power_of_two;
2839 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
2840 h->root.root.string);
2843 /* Make sure we know what is going on here. */
2844 htab = ppc_elf_hash_table (info);
2845 BFD_ASSERT (htab->elf.dynobj != NULL
2846 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
2847 || h->weakdef != NULL
2848 || ((h->elf_link_hash_flags
2849 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2850 && (h->elf_link_hash_flags
2851 & ELF_LINK_HASH_REF_REGULAR) != 0
2852 && (h->elf_link_hash_flags
2853 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
2855 /* Deal with function syms. */
2856 if (h->type == STT_FUNC
2857 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
2859 /* Clear procedure linkage table information for any symbol that
2860 won't need a .plt entry. */
2861 if (h->plt.refcount <= 0
2862 || SYMBOL_CALLS_LOCAL (info, h)
2863 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2864 && h->root.type == bfd_link_hash_undefweak))
2866 /* A PLT entry is not required/allowed when:
2868 1. We are not using ld.so; because then the PLT entry
2869 can't be set up, so we can't use one. In this case,
2870 ppc_elf_adjust_dynamic_symbol won't even be called.
2872 2. GC has rendered the entry unused.
2874 3. We know for certain that a call to this symbol
2875 will go to this object, or will remain undefined. */
2876 h->plt.offset = (bfd_vma) -1;
2877 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
2882 h->plt.offset = (bfd_vma) -1;
2884 /* If this is a weak symbol, and there is a real definition, the
2885 processor independent code will have arranged for us to see the
2886 real definition first, and we can just use the same value. */
2887 if (h->weakdef != NULL)
2889 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2890 || h->weakdef->root.type == bfd_link_hash_defweak);
2891 h->root.u.def.section = h->weakdef->root.u.def.section;
2892 h->root.u.def.value = h->weakdef->root.u.def.value;
2893 if (ELIMINATE_COPY_RELOCS)
2894 h->elf_link_hash_flags
2895 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
2896 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
2900 /* This is a reference to a symbol defined by a dynamic object which
2901 is not a function. */
2903 /* If we are creating a shared library, we must presume that the
2904 only references to the symbol are via the global offset table.
2905 For such cases we need not do anything here; the relocations will
2906 be handled correctly by relocate_section. */
2910 /* If there are no references to this symbol that do not use the
2911 GOT, we don't need to generate a copy reloc. */
2912 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
2915 if (ELIMINATE_COPY_RELOCS)
2917 struct ppc_elf_dyn_relocs *p;
2918 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2920 s = p->sec->output_section;
2921 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2925 /* If we didn't find any dynamic relocs in read-only sections, then
2926 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2929 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
2934 /* We must allocate the symbol in our .dynbss section, which will
2935 become part of the .bss section of the executable. There will be
2936 an entry for this symbol in the .dynsym section. The dynamic
2937 object will contain position independent code, so all references
2938 from the dynamic object to this symbol will go through the global
2939 offset table. The dynamic linker will use the .dynsym entry to
2940 determine the address it must put in the global offset table, so
2941 both the dynamic object and the regular object will refer to the
2942 same memory location for the variable.
2944 Of course, if the symbol is sufficiently small, we must instead
2945 allocate it in .sbss. FIXME: It would be better to do this if and
2946 only if there were actually SDAREL relocs for that symbol. */
2948 if (h->size <= elf_gp_size (htab->elf.dynobj))
2952 BFD_ASSERT (s != NULL);
2954 /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
2955 copy the initial value out of the dynamic object and into the
2956 runtime process image. We need to remember the offset into the
2957 .rela.bss section we are going to use. */
2958 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2962 if (h->size <= elf_gp_size (htab->elf.dynobj))
2963 srel = htab->relsbss;
2965 srel = htab->relbss;
2966 BFD_ASSERT (srel != NULL);
2967 srel->_raw_size += sizeof (Elf32_External_Rela);
2968 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
2971 /* We need to figure out the alignment required for this symbol. I
2972 have no idea how ELF linkers handle this. */
2973 power_of_two = bfd_log2 (h->size);
2974 if (power_of_two > 4)
2977 /* Apply the required alignment. */
2978 s->_raw_size = BFD_ALIGN (s->_raw_size,
2979 (bfd_size_type) (1 << power_of_two));
2980 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
2982 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
2986 /* Define the symbol as being at this point in the section. */
2987 h->root.u.def.section = s;
2988 h->root.u.def.value = s->_raw_size;
2990 /* Increment the section size to make room for the symbol. */
2991 s->_raw_size += h->size;
2996 /* This is the condition under which finish_dynamic_symbol will be
2997 called from elflink.h. If elflink.h doesn't call our
2998 finish_dynamic_symbol routine, we'll need to do something about
2999 initializing any .plt and .got entries in relocate_section. */
3000 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
3003 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
3004 && ((H)->dynindx != -1 \
3005 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
3007 /* Of those relocs that might be copied as dynamic relocs, this macro
3008 selects those that must be copied when linking a shared library,
3009 even when the symbol is local. */
3011 #define MUST_BE_DYN_RELOC(RTYPE) \
3012 ((RTYPE) != R_PPC_REL24 \
3013 && (RTYPE) != R_PPC_REL14 \
3014 && (RTYPE) != R_PPC_REL14_BRTAKEN \
3015 && (RTYPE) != R_PPC_REL14_BRNTAKEN \
3016 && (RTYPE) != R_PPC_REL32)
3018 /* Allocate space in associated reloc sections for dynamic relocs. */
3021 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3023 struct bfd_link_info *info = inf;
3024 struct ppc_elf_link_hash_entry *eh;
3025 struct ppc_elf_link_hash_table *htab;
3026 struct ppc_elf_dyn_relocs *p;
3028 if (h->root.type == bfd_link_hash_indirect)
3031 if (h->root.type == bfd_link_hash_warning)
3032 /* When warning symbols are created, they **replace** the "real"
3033 entry in the hash table, thus we never get to see the real
3034 symbol in a hash traversal. So look at it now. */
3035 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3037 htab = ppc_elf_hash_table (info);
3038 if (htab->elf.dynamic_sections_created
3039 && h->plt.refcount > 0)
3041 /* Make sure this symbol is output as a dynamic symbol. */
3042 if (h->dynindx == -1
3043 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3045 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
3050 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3052 asection *s = htab->plt;
3054 /* If this is the first .plt entry, make room for the special
3056 if (s->_raw_size == 0)
3057 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
3059 /* The PowerPC PLT is actually composed of two parts, the
3060 first part is 2 words (for a load and a jump), and then
3061 there is a remaining word available at the end. */
3062 h->plt.offset = (PLT_INITIAL_ENTRY_SIZE
3064 * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE)
3065 / PLT_ENTRY_SIZE)));
3067 /* If this symbol is not defined in a regular file, and we
3068 are not generating a shared library, then set the symbol
3069 to this location in the .plt. This is required to make
3070 function pointers compare as equal between the normal
3071 executable and the shared library. */
3073 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3075 h->root.u.def.section = s;
3076 h->root.u.def.value = h->plt.offset;
3079 /* Make room for this entry. After the 8192nd entry, room
3080 for two entries is allocated. */
3081 s->_raw_size += PLT_ENTRY_SIZE;
3082 if ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
3083 > PLT_NUM_SINGLE_ENTRIES)
3084 s->_raw_size += PLT_ENTRY_SIZE;
3086 /* We also need to make an entry in the .rela.plt section. */
3087 htab->relplt->_raw_size += sizeof (Elf32_External_Rela);
3091 h->plt.offset = (bfd_vma) -1;
3092 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
3097 h->plt.offset = (bfd_vma) -1;
3098 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
3101 eh = (struct ppc_elf_link_hash_entry *) h;
3102 if (eh->elf.got.refcount > 0)
3104 /* Make sure this symbol is output as a dynamic symbol. */
3105 if (eh->elf.dynindx == -1
3106 && (eh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3108 if (!bfd_elf32_link_record_dynamic_symbol (info, &eh->elf))
3112 if (eh->tls_mask == (TLS_TLS | TLS_LD)
3113 && !(eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
3114 /* If just an LD reloc, we'll just use htab->tlsld_got.offset. */
3115 eh->elf.got.offset = (bfd_vma) -1;
3119 eh->elf.got.offset = htab->got->_raw_size;
3120 if ((eh->tls_mask & TLS_TLS) != 0)
3122 if ((eh->tls_mask & TLS_LD) != 0)
3123 htab->got->_raw_size += 8;
3124 if ((eh->tls_mask & TLS_GD) != 0)
3125 htab->got->_raw_size += 8;
3126 if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
3127 htab->got->_raw_size += 4;
3128 if ((eh->tls_mask & TLS_DTPREL) != 0)
3129 htab->got->_raw_size += 4;
3132 htab->got->_raw_size += 4;
3133 dyn = htab->elf.dynamic_sections_created;
3135 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
3136 && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
3137 || eh->elf.root.type != bfd_link_hash_undefweak))
3139 /* All the entries we allocated need relocs. */
3140 htab->relgot->_raw_size
3141 += ((htab->got->_raw_size - eh->elf.got.offset) / 4
3142 * sizeof (Elf32_External_Rela));
3143 /* Except LD only needs one. */
3144 if ((eh->tls_mask & TLS_LD) != 0)
3145 htab->relgot->_raw_size -= sizeof (Elf32_External_Rela);
3150 eh->elf.got.offset = (bfd_vma) -1;
3152 if (eh->dyn_relocs == NULL)
3155 /* In the shared -Bsymbolic case, discard space allocated for
3156 dynamic pc-relative relocs against symbols which turn out to be
3157 defined in regular objects. For the normal shared case, discard
3158 space for relocs that have become local due to symbol visibility
3163 /* Relocs that use pc_count are those that appear on a call insn,
3164 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
3165 generated via assembly. We want calls to protected symbols to
3166 resolve directly to the function rather than going via the plt.
3167 If people want function pointer comparisons to work as expected
3168 then they should avoid writing weird assembly. */
3169 if (SYMBOL_CALLS_LOCAL (info, h))
3171 struct ppc_elf_dyn_relocs **pp;
3173 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3175 p->count -= p->pc_count;
3184 /* Also discard relocs on undefined weak syms with non-default
3186 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3187 && h->root.type == bfd_link_hash_undefweak)
3188 eh->dyn_relocs = NULL;
3190 /* Make sure undefined weak symbols are output as a dynamic symbol
3193 && eh->dyn_relocs != NULL
3195 && h->root.type == bfd_link_hash_undefweak
3196 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3198 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
3202 else if (ELIMINATE_COPY_RELOCS)
3204 /* For the non-shared case, discard space for relocs against
3205 symbols which turn out to need copy relocs or are not
3208 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
3209 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3210 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3212 /* Make sure this symbol is output as a dynamic symbol.
3213 Undefined weak syms won't yet be marked as dynamic. */
3214 if (h->dynindx == -1
3215 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
3217 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
3221 /* If that succeeded, we know we'll be keeping all the
3223 if (h->dynindx != -1)
3227 eh->dyn_relocs = NULL;
3232 /* Finally, allocate space. */
3233 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3235 asection *sreloc = elf_section_data (p->sec)->sreloc;
3236 sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela);
3242 /* Find any dynamic relocs that apply to read-only sections. */
3245 readonly_dynrelocs (struct elf_link_hash_entry *h, void *info)
3247 struct ppc_elf_dyn_relocs *p;
3249 if (h->root.type == bfd_link_hash_indirect)
3252 if (h->root.type == bfd_link_hash_warning)
3253 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3255 for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
3257 asection *s = p->sec->output_section;
3260 && ((s->flags & (SEC_READONLY | SEC_ALLOC))
3261 == (SEC_READONLY | SEC_ALLOC)))
3263 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
3265 /* Not an error, just cut short the traversal. */
3272 /* Set the sizes of the dynamic sections. */
3275 ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3276 struct bfd_link_info *info)
3278 struct ppc_elf_link_hash_table *htab;
3284 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
3287 htab = ppc_elf_hash_table (info);
3288 BFD_ASSERT (htab->elf.dynobj != NULL);
3290 if (elf_hash_table (info)->dynamic_sections_created)
3292 /* Set the contents of the .interp section to the interpreter. */
3293 if (info->executable)
3295 s = bfd_get_section_by_name (htab->elf.dynobj, ".interp");
3296 BFD_ASSERT (s != NULL);
3297 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3298 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3302 if (htab->tlsld_got.refcount > 0)
3304 htab->tlsld_got.offset = htab->got->_raw_size;
3305 htab->got->_raw_size += 8;
3307 htab->relgot->_raw_size += sizeof (Elf32_External_Rela);
3310 htab->tlsld_got.offset = (bfd_vma) -1;
3312 /* Set up .got offsets for local syms, and space for local dynamic
3314 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3316 bfd_signed_vma *local_got;
3317 bfd_signed_vma *end_local_got;
3319 bfd_size_type locsymcount;
3320 Elf_Internal_Shdr *symtab_hdr;
3323 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
3326 for (s = ibfd->sections; s != NULL; s = s->next)
3328 struct ppc_elf_dyn_relocs *p;
3330 for (p = ((struct ppc_elf_dyn_relocs *)
3331 elf_section_data (s)->local_dynrel);
3335 if (!bfd_is_abs_section (p->sec)
3336 && bfd_is_abs_section (p->sec->output_section))
3338 /* Input section has been discarded, either because
3339 it is a copy of a linkonce section or due to
3340 linker script /DISCARD/, so we'll be discarding
3343 else if (p->count != 0)
3345 elf_section_data (p->sec)->sreloc->_raw_size
3346 += p->count * sizeof (Elf32_External_Rela);
3347 if ((p->sec->output_section->flags
3348 & (SEC_READONLY | SEC_ALLOC))
3349 == (SEC_READONLY | SEC_ALLOC))
3350 info->flags |= DF_TEXTREL;
3355 local_got = elf_local_got_refcounts (ibfd);
3359 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
3360 locsymcount = symtab_hdr->sh_info;
3361 end_local_got = local_got + locsymcount;
3362 lgot_masks = (char *) end_local_got;
3364 srel = htab->relgot;
3365 for (; local_got < end_local_got; ++local_got, ++lgot_masks)
3368 if (*lgot_masks == (TLS_TLS | TLS_LD))
3370 /* If just an LD reloc, we'll just use
3371 htab->tlsld_got.offset. */
3372 if (htab->tlsld_got.offset == (bfd_vma) -1)
3374 htab->tlsld_got.offset = s->_raw_size;
3377 srel->_raw_size += sizeof (Elf32_External_Rela);
3379 *local_got = (bfd_vma) -1;
3383 *local_got = s->_raw_size;
3384 if ((*lgot_masks & TLS_TLS) != 0)
3386 if ((*lgot_masks & TLS_GD) != 0)
3388 if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
3390 if ((*lgot_masks & TLS_DTPREL) != 0)
3396 srel->_raw_size += ((s->_raw_size - *local_got) / 4
3397 * sizeof (Elf32_External_Rela));
3401 *local_got = (bfd_vma) -1;
3404 /* Allocate space for global sym dynamic relocs. */
3405 elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
3407 /* We've now determined the sizes of the various dynamic sections.
3408 Allocate memory for them. */
3410 for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
3412 if ((s->flags & SEC_LINKER_CREATED) == 0)
3417 || (htab->sdata != NULL && s == htab->sdata->section)
3418 || (htab->sdata2 != NULL && s == htab->sdata2->section))
3420 /* Strip this section if we don't need it; see the
3423 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
3425 if (s->_raw_size == 0)
3427 /* If we don't need this section, strip it from the
3428 output file. This is mostly to handle .rela.bss and
3429 .rela.plt. We must create both sections in
3430 create_dynamic_sections, because they must be created
3431 before the linker maps input sections to output
3432 sections. The linker does that before
3433 adjust_dynamic_symbol is called, and it is that
3434 function which decides whether anything needs to go
3435 into these sections. */
3439 /* Remember whether there are any relocation sections. */
3442 /* We use the reloc_count field as a counter if we need
3443 to copy relocs into the output file. */
3449 /* It's not one of our sections, so don't allocate space. */
3453 if (s->_raw_size == 0)
3455 _bfd_strip_section_from_output (info, s);
3459 /* Allocate memory for the section contents. */
3460 s->contents = bfd_zalloc (htab->elf.dynobj, s->_raw_size);
3461 if (s->contents == NULL)
3465 if (htab->elf.dynamic_sections_created)
3467 /* Add some entries to the .dynamic section. We fill in the
3468 values later, in ppc_elf_finish_dynamic_sections, but we
3469 must add the entries now so that we get the correct size for
3470 the .dynamic section. The DT_DEBUG entry is filled in by the
3471 dynamic linker and used by the debugger. */
3472 #define add_dynamic_entry(TAG, VAL) \
3473 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3475 if (info->executable)
3477 if (!add_dynamic_entry (DT_DEBUG, 0))
3481 if (htab->plt != NULL && htab->plt->_raw_size != 0)
3483 if (!add_dynamic_entry (DT_PLTGOT, 0)
3484 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3485 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3486 || !add_dynamic_entry (DT_JMPREL, 0))
3492 if (!add_dynamic_entry (DT_RELA, 0)
3493 || !add_dynamic_entry (DT_RELASZ, 0)
3494 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3498 /* If any dynamic relocs apply to a read-only section, then we
3499 need a DT_TEXTREL entry. */
3500 if ((info->flags & DF_TEXTREL) == 0)
3501 elf_link_hash_traverse (elf_hash_table (info), readonly_dynrelocs,
3504 if ((info->flags & DF_TEXTREL) != 0)
3506 if (!add_dynamic_entry (DT_TEXTREL, 0))
3510 #undef add_dynamic_entry
3516 update_local_sym_info (bfd *abfd,
3517 Elf_Internal_Shdr *symtab_hdr,
3518 unsigned long r_symndx,
3521 bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
3522 char *local_got_tls_masks;
3524 if (local_got_refcounts == NULL)
3526 bfd_size_type size = symtab_hdr->sh_info;
3528 size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks);
3529 local_got_refcounts = bfd_zalloc (abfd, size);
3530 if (local_got_refcounts == NULL)
3532 elf_local_got_refcounts (abfd) = local_got_refcounts;
3535 local_got_refcounts[r_symndx] += 1;
3536 local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info);
3537 local_got_tls_masks[r_symndx] |= tls_type;
3542 bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
3544 (*_bfd_error_handler)
3545 (_("%s: relocation %s cannot be used when making a shared object"),
3546 bfd_archive_filename (abfd),
3547 ppc_elf_howto_table[r_type]->name);
3548 bfd_set_error (bfd_error_bad_value);
3551 /* Look through the relocs for a section during the first phase, and
3552 allocate space in the global offset table or procedure linkage
3556 ppc_elf_check_relocs (bfd *abfd,
3557 struct bfd_link_info *info,
3559 const Elf_Internal_Rela *relocs)
3561 struct ppc_elf_link_hash_table *htab;
3562 Elf_Internal_Shdr *symtab_hdr;
3563 struct elf_link_hash_entry **sym_hashes;
3564 const Elf_Internal_Rela *rel;
3565 const Elf_Internal_Rela *rel_end;
3568 if (info->relocatable)
3572 fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n",
3573 bfd_get_section_name (abfd, sec),
3574 bfd_archive_filename (abfd));
3577 /* Initialize howto table if not already done. */
3578 if (!ppc_elf_howto_table[R_PPC_ADDR32])
3579 ppc_elf_howto_init ();
3581 /* Create the linker generated sections all the time so that the
3582 special symbols are created. */
3583 htab = ppc_elf_hash_table (info);
3584 if (htab->sdata == NULL)
3586 htab->sdata = ppc_elf_create_linker_section (abfd, info,
3587 LINKER_SECTION_SDATA);
3588 if (htab->sdata == NULL)
3592 if (htab->sdata2 == NULL)
3594 htab->sdata2 = ppc_elf_create_linker_section (abfd, info,
3595 LINKER_SECTION_SDATA2);
3596 if (htab->sdata2 == NULL)
3600 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3601 sym_hashes = elf_sym_hashes (abfd);
3604 rel_end = relocs + sec->reloc_count;
3605 for (rel = relocs; rel < rel_end; rel++)
3607 unsigned long r_symndx;
3608 enum elf_ppc_reloc_type r_type;
3609 struct elf_link_hash_entry *h;
3612 r_symndx = ELF32_R_SYM (rel->r_info);
3613 if (r_symndx < symtab_hdr->sh_info)
3616 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3618 /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
3619 This shows up in particular in an R_PPC_ADDR32 in the eabi
3621 if (h && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3623 if (htab->got == NULL)
3625 if (htab->elf.dynobj == NULL)
3626 htab->elf.dynobj = abfd;
3627 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3632 r_type = ELF32_R_TYPE (rel->r_info);
3635 case R_PPC_GOT_TLSLD16:
3636 case R_PPC_GOT_TLSLD16_LO:
3637 case R_PPC_GOT_TLSLD16_HI:
3638 case R_PPC_GOT_TLSLD16_HA:
3639 htab->tlsld_got.refcount += 1;
3640 tls_type = TLS_TLS | TLS_LD;
3643 case R_PPC_GOT_TLSGD16:
3644 case R_PPC_GOT_TLSGD16_LO:
3645 case R_PPC_GOT_TLSGD16_HI:
3646 case R_PPC_GOT_TLSGD16_HA:
3647 tls_type = TLS_TLS | TLS_GD;
3650 case R_PPC_GOT_TPREL16:
3651 case R_PPC_GOT_TPREL16_LO:
3652 case R_PPC_GOT_TPREL16_HI:
3653 case R_PPC_GOT_TPREL16_HA:
3655 info->flags |= DF_STATIC_TLS;
3656 tls_type = TLS_TLS | TLS_TPREL;
3659 case R_PPC_GOT_DTPREL16:
3660 case R_PPC_GOT_DTPREL16_LO:
3661 case R_PPC_GOT_DTPREL16_HI:
3662 case R_PPC_GOT_DTPREL16_HA:
3663 tls_type = TLS_TLS | TLS_DTPREL;
3665 sec->has_tls_reloc = 1;
3668 /* GOT16 relocations */
3670 case R_PPC_GOT16_LO:
3671 case R_PPC_GOT16_HI:
3672 case R_PPC_GOT16_HA:
3673 /* This symbol requires a global offset table entry. */
3674 if (htab->got == NULL)
3676 if (htab->elf.dynobj == NULL)
3677 htab->elf.dynobj = abfd;
3678 if (!ppc_elf_create_got (htab->elf.dynobj, info))
3683 h->got.refcount += 1;
3684 ppc_elf_hash_entry (h)->tls_mask |= tls_type;
3687 /* This is a global offset table entry for a local symbol. */
3688 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
3692 /* Indirect .sdata relocation. */
3693 case R_PPC_EMB_SDAI16:
3696 bad_shared_reloc (abfd, r_type);
3699 if (!elf_create_pointer_linker_section (abfd, info,
3700 htab->sdata, h, rel))
3704 /* Indirect .sdata2 relocation. */
3705 case R_PPC_EMB_SDA2I16:
3708 bad_shared_reloc (abfd, r_type);
3711 if (!elf_create_pointer_linker_section (abfd, info,
3712 htab->sdata2, h, rel))
3716 case R_PPC_SDAREL16:
3717 case R_PPC_EMB_SDA2REL:
3718 case R_PPC_EMB_SDA21:
3719 case R_PPC_EMB_RELSDA:
3720 case R_PPC_EMB_NADDR32:
3721 case R_PPC_EMB_NADDR16:
3722 case R_PPC_EMB_NADDR16_LO:
3723 case R_PPC_EMB_NADDR16_HI:
3724 case R_PPC_EMB_NADDR16_HA:
3727 bad_shared_reloc (abfd, r_type);
3733 case R_PPC_PLTREL24:
3734 case R_PPC_PLTREL32:
3735 case R_PPC_PLT16_LO:
3736 case R_PPC_PLT16_HI:
3737 case R_PPC_PLT16_HA:
3739 fprintf (stderr, "Reloc requires a PLT entry\n");
3741 /* This symbol requires a procedure linkage table entry. We
3742 actually build the entry in finish_dynamic_symbol,
3743 because this might be a case of linking PIC code without
3744 linking in any dynamic objects, in which case we don't
3745 need to generate a procedure linkage table after all. */
3749 /* It does not make sense to have a procedure linkage
3750 table entry for a local symbol. */
3751 (*_bfd_error_handler) (_("%s(%s+0x%lx): %s reloc against "
3753 bfd_archive_filename (abfd),
3755 (long) rel->r_offset,
3756 ppc_elf_howto_table[r_type]->name);
3757 bfd_set_error (bfd_error_bad_value);
3761 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3765 /* The following relocations don't need to propagate the
3766 relocation if linking a shared object since they are
3767 section relative. */
3769 case R_PPC_SECTOFF_LO:
3770 case R_PPC_SECTOFF_HI:
3771 case R_PPC_SECTOFF_HA:
3772 case R_PPC_DTPREL16:
3773 case R_PPC_DTPREL16_LO:
3774 case R_PPC_DTPREL16_HI:
3775 case R_PPC_DTPREL16_HA:
3779 /* This are just markers. */
3781 case R_PPC_EMB_MRKREF:
3786 /* These should only appear in dynamic objects. */
3788 case R_PPC_GLOB_DAT:
3789 case R_PPC_JMP_SLOT:
3790 case R_PPC_RELATIVE:
3793 /* These aren't handled yet. We'll report an error later. */
3795 case R_PPC_EMB_RELSEC16:
3796 case R_PPC_EMB_RELST_LO:
3797 case R_PPC_EMB_RELST_HI:
3798 case R_PPC_EMB_RELST_HA:
3799 case R_PPC_EMB_BIT_FLD:
3802 /* This refers only to functions defined in the shared library. */
3803 case R_PPC_LOCAL24PC:
3806 /* This relocation describes the C++ object vtable hierarchy.
3807 Reconstruct it for later use during GC. */
3808 case R_PPC_GNU_VTINHERIT:
3809 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3813 /* This relocation describes which C++ vtable entries are actually
3814 used. Record for later use during GC. */
3815 case R_PPC_GNU_VTENTRY:
3816 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3820 /* We shouldn't really be seeing these. */
3823 info->flags |= DF_STATIC_TLS;
3827 case R_PPC_DTPMOD32:
3828 case R_PPC_DTPREL32:
3832 case R_PPC_TPREL16_LO:
3833 case R_PPC_TPREL16_HI:
3834 case R_PPC_TPREL16_HA:
3836 info->flags |= DF_STATIC_TLS;
3839 /* When creating a shared object, we must copy these
3840 relocs into the output file. We create a reloc
3841 section in dynobj and make room for the reloc. */
3844 case R_PPC_REL14_BRTAKEN:
3845 case R_PPC_REL14_BRNTAKEN:
3848 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3855 case R_PPC_ADDR16_LO:
3856 case R_PPC_ADDR16_HI:
3857 case R_PPC_ADDR16_HA:
3859 case R_PPC_ADDR14_BRTAKEN:
3860 case R_PPC_ADDR14_BRNTAKEN:
3863 if (h != NULL && !info->shared)
3865 /* We may need a plt entry if the symbol turns out to be
3866 a function defined in a dynamic object. */
3869 /* We may need a copy reloc too. */
3870 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3874 /* If we are creating a shared library, and this is a reloc
3875 against a global symbol, or a non PC relative reloc
3876 against a local symbol, then we need to copy the reloc
3877 into the shared library. However, if we are linking with
3878 -Bsymbolic, we do not need to copy a reloc against a
3879 global symbol which is defined in an object we are
3880 including in the link (i.e., DEF_REGULAR is set). At
3881 this point we have not seen all the input files, so it is
3882 possible that DEF_REGULAR is not set now but will be set
3883 later (it is never cleared). In case of a weak definition,
3884 DEF_REGULAR may be cleared later by a strong definition in
3885 a shared library. We account for that possibility below by
3886 storing information in the dyn_relocs field of the hash
3887 table entry. A similar situation occurs when creating
3888 shared libraries and symbol visibility changes render the
3891 If on the other hand, we are creating an executable, we
3892 may need to keep relocations for symbols satisfied by a
3893 dynamic library if we manage to avoid copy relocs for the
3896 && (MUST_BE_DYN_RELOC (r_type)
3898 && (! info->symbolic
3899 || h->root.type == bfd_link_hash_defweak
3900 || (h->elf_link_hash_flags
3901 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
3902 || (ELIMINATE_COPY_RELOCS
3904 && (sec->flags & SEC_ALLOC) != 0
3906 && (h->root.type == bfd_link_hash_defweak
3907 || (h->elf_link_hash_flags
3908 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
3910 struct ppc_elf_dyn_relocs *p;
3911 struct ppc_elf_dyn_relocs **head;
3915 "ppc_elf_check_relocs needs to "
3916 "create relocation for %s\n",
3917 (h && h->root.root.string
3918 ? h->root.root.string : "<unknown>"));
3924 name = (bfd_elf_string_from_elf_section
3926 elf_elfheader (abfd)->e_shstrndx,
3927 elf_section_data (sec)->rel_hdr.sh_name));
3931 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
3932 && strcmp (bfd_get_section_name (abfd, sec),
3935 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
3940 sreloc = bfd_make_section (htab->elf.dynobj, name);
3941 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3942 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3943 if ((sec->flags & SEC_ALLOC) != 0)
3944 flags |= SEC_ALLOC | SEC_LOAD;
3946 || ! bfd_set_section_flags (htab->elf.dynobj,
3948 || ! bfd_set_section_alignment (htab->elf.dynobj,
3952 elf_section_data (sec)->sreloc = sreloc;
3955 /* If this is a global symbol, we count the number of
3956 relocations we need for this symbol. */
3959 head = &ppc_elf_hash_entry (h)->dyn_relocs;
3963 /* Track dynamic relocs needed for local syms too.
3964 We really need local syms available to do this
3968 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3973 head = ((struct ppc_elf_dyn_relocs **)
3974 &elf_section_data (s)->local_dynrel);
3978 if (p == NULL || p->sec != sec)
3980 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
3991 if (!MUST_BE_DYN_RELOC (r_type))
4002 /* Return the section that should be marked against GC for a given
4006 ppc_elf_gc_mark_hook (asection *sec,
4007 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4008 Elf_Internal_Rela *rel,
4009 struct elf_link_hash_entry *h,
4010 Elf_Internal_Sym *sym)
4014 switch (ELF32_R_TYPE (rel->r_info))
4016 case R_PPC_GNU_VTINHERIT:
4017 case R_PPC_GNU_VTENTRY:
4021 switch (h->root.type)
4023 case bfd_link_hash_defined:
4024 case bfd_link_hash_defweak:
4025 return h->root.u.def.section;
4027 case bfd_link_hash_common:
4028 return h->root.u.c.p->section;
4036 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4041 /* Update the got, plt and dynamic reloc reference counts for the
4042 section being removed. */
4045 ppc_elf_gc_sweep_hook (bfd *abfd,
4046 struct bfd_link_info *info,
4048 const Elf_Internal_Rela *relocs)
4050 struct ppc_elf_link_hash_table *htab;
4051 Elf_Internal_Shdr *symtab_hdr;
4052 struct elf_link_hash_entry **sym_hashes;
4053 bfd_signed_vma *local_got_refcounts;
4054 const Elf_Internal_Rela *rel, *relend;
4056 elf_section_data (sec)->local_dynrel = NULL;
4058 htab = ppc_elf_hash_table (info);
4059 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4060 sym_hashes = elf_sym_hashes (abfd);
4061 local_got_refcounts = elf_local_got_refcounts (abfd);
4063 relend = relocs + sec->reloc_count;
4064 for (rel = relocs; rel < relend; rel++)
4066 unsigned long r_symndx;
4067 enum elf_ppc_reloc_type r_type;
4068 struct elf_link_hash_entry *h = NULL;
4070 r_symndx = ELF32_R_SYM (rel->r_info);
4071 if (r_symndx >= symtab_hdr->sh_info)
4073 struct ppc_elf_dyn_relocs **pp, *p;
4074 struct ppc_elf_link_hash_entry *eh;
4076 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4077 eh = (struct ppc_elf_link_hash_entry *) h;
4079 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4082 /* Everything must go for SEC. */
4088 r_type = ELF32_R_TYPE (rel->r_info);
4091 case R_PPC_GOT_TLSLD16:
4092 case R_PPC_GOT_TLSLD16_LO:
4093 case R_PPC_GOT_TLSLD16_HI:
4094 case R_PPC_GOT_TLSLD16_HA:
4095 htab->tlsld_got.refcount -= 1;
4098 case R_PPC_GOT_TLSGD16:
4099 case R_PPC_GOT_TLSGD16_LO:
4100 case R_PPC_GOT_TLSGD16_HI:
4101 case R_PPC_GOT_TLSGD16_HA:
4102 case R_PPC_GOT_TPREL16:
4103 case R_PPC_GOT_TPREL16_LO:
4104 case R_PPC_GOT_TPREL16_HI:
4105 case R_PPC_GOT_TPREL16_HA:
4106 case R_PPC_GOT_DTPREL16:
4107 case R_PPC_GOT_DTPREL16_LO:
4108 case R_PPC_GOT_DTPREL16_HI:
4109 case R_PPC_GOT_DTPREL16_HA:
4111 case R_PPC_GOT16_LO:
4112 case R_PPC_GOT16_HI:
4113 case R_PPC_GOT16_HA:
4116 if (h->got.refcount > 0)
4119 else if (local_got_refcounts != NULL)
4121 if (local_got_refcounts[r_symndx] > 0)
4122 local_got_refcounts[r_symndx]--;
4128 case R_PPC_REL14_BRTAKEN:
4129 case R_PPC_REL14_BRNTAKEN:
4132 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
4139 case R_PPC_ADDR16_LO:
4140 case R_PPC_ADDR16_HI:
4141 case R_PPC_ADDR16_HA:
4143 case R_PPC_ADDR14_BRTAKEN:
4144 case R_PPC_ADDR14_BRNTAKEN:
4148 case R_PPC_PLTREL24:
4149 case R_PPC_PLT16_LO:
4150 case R_PPC_PLT16_HI:
4151 case R_PPC_PLT16_HA:
4154 if (h->plt.refcount > 0)
4166 /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
4169 ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
4171 struct ppc_elf_link_hash_table *htab;
4173 htab = ppc_elf_hash_table (info);
4174 htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4175 FALSE, FALSE, TRUE);
4177 return _bfd_elf_tls_setup (obfd, info);
4180 /* Run through all the TLS relocs looking for optimization
4184 ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
4185 struct bfd_link_info *info)
4189 struct ppc_elf_link_hash_table *htab;
4191 if (info->relocatable || info->shared)
4194 htab = ppc_elf_hash_table (info);
4195 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4197 Elf_Internal_Sym *locsyms = NULL;
4198 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4200 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
4201 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
4203 Elf_Internal_Rela *relstart, *rel, *relend;
4204 int expecting_tls_get_addr;
4206 /* Read the relocations. */
4207 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
4209 if (relstart == NULL)
4212 expecting_tls_get_addr = 0;
4213 relend = relstart + sec->reloc_count;
4214 for (rel = relstart; rel < relend; rel++)
4216 enum elf_ppc_reloc_type r_type;
4217 unsigned long r_symndx;
4218 struct elf_link_hash_entry *h = NULL;
4220 char tls_set, tls_clear;
4221 bfd_boolean is_local;
4223 r_symndx = ELF32_R_SYM (rel->r_info);
4224 if (r_symndx >= symtab_hdr->sh_info)
4226 struct elf_link_hash_entry **sym_hashes;
4228 sym_hashes = elf_sym_hashes (ibfd);
4229 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4230 while (h->root.type == bfd_link_hash_indirect
4231 || h->root.type == bfd_link_hash_warning)
4232 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4237 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
4240 r_type = ELF32_R_TYPE (rel->r_info);
4243 case R_PPC_GOT_TLSLD16:
4244 case R_PPC_GOT_TLSLD16_LO:
4245 case R_PPC_GOT_TLSLD16_HI:
4246 case R_PPC_GOT_TLSLD16_HA:
4247 /* These relocs should never be against a symbol
4248 defined in a shared lib. Leave them alone if
4249 that turns out to be the case. */
4250 expecting_tls_get_addr = 0;
4251 htab->tlsld_got.refcount -= 1;
4258 expecting_tls_get_addr = 1;
4261 case R_PPC_GOT_TLSGD16:
4262 case R_PPC_GOT_TLSGD16_LO:
4263 case R_PPC_GOT_TLSGD16_HI:
4264 case R_PPC_GOT_TLSGD16_HA:
4270 tls_set = TLS_TLS | TLS_TPRELGD;
4272 expecting_tls_get_addr = 1;
4275 case R_PPC_GOT_TPREL16:
4276 case R_PPC_GOT_TPREL16_LO:
4277 case R_PPC_GOT_TPREL16_HI:
4278 case R_PPC_GOT_TPREL16_HA:
4279 expecting_tls_get_addr = 0;
4284 tls_clear = TLS_TPREL;
4291 case R_PPC_REL14_BRTAKEN:
4292 case R_PPC_REL14_BRNTAKEN:
4294 if (expecting_tls_get_addr
4296 && h == htab->tls_get_addr)
4298 if (h->plt.refcount > 0)
4299 h->plt.refcount -= 1;
4301 expecting_tls_get_addr = 0;
4305 expecting_tls_get_addr = 0;
4313 /* We managed to get rid of a got entry. */
4314 if (h->got.refcount > 0)
4315 h->got.refcount -= 1;
4317 tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
4321 Elf_Internal_Sym *sym;
4322 bfd_signed_vma *lgot_refs;
4325 if (locsyms == NULL)
4327 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4328 if (locsyms == NULL)
4329 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4330 symtab_hdr->sh_info,
4331 0, NULL, NULL, NULL);
4332 if (locsyms == NULL)
4334 if (elf_section_data (sec)->relocs != relstart)
4339 sym = locsyms + r_symndx;
4340 lgot_refs = elf_local_got_refcounts (ibfd);
4341 if (lgot_refs == NULL)
4345 /* We managed to get rid of a got entry. */
4346 if (lgot_refs[r_symndx] > 0)
4347 lgot_refs[r_symndx] -= 1;
4349 lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info);
4350 tls_mask = &lgot_masks[r_symndx];
4353 *tls_mask |= tls_set;
4354 *tls_mask &= ~tls_clear;
4357 if (elf_section_data (sec)->relocs != relstart)
4362 && (symtab_hdr->contents != (unsigned char *) locsyms))
4364 if (!info->keep_memory)
4367 symtab_hdr->contents = (unsigned char *) locsyms;
4373 /* Hook called by the linker routine which adds symbols from an object
4374 file. We use it to put .comm items in .sbss, and not .bss. */
4377 ppc_elf_add_symbol_hook (bfd *abfd,
4378 struct bfd_link_info *info,
4379 Elf_Internal_Sym *sym,
4380 const char **namep ATTRIBUTE_UNUSED,
4381 flagword *flagsp ATTRIBUTE_UNUSED,
4385 if (sym->st_shndx == SHN_COMMON
4386 && !info->relocatable
4387 && sym->st_size <= elf_gp_size (abfd)
4388 && (info->hash->creator == abfd->xvec
4389 || info->hash->creator == abfd->xvec->alternative_target))
4391 /* Common symbols less than or equal to -G nn bytes are automatically
4393 struct ppc_elf_link_hash_table *htab;
4395 htab = ppc_elf_hash_table (info);
4396 if (htab->sbss == NULL)
4398 flagword flags = SEC_IS_COMMON;
4400 htab->sbss = bfd_make_section_anyway (abfd, ".sbss");
4401 if (htab->sbss == NULL
4402 || ! bfd_set_section_flags (abfd, htab->sbss, flags))
4407 *valp = sym->st_size;
4413 /* Finish up dynamic symbol handling. We set the contents of various
4414 dynamic sections here. */
4417 ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
4418 struct bfd_link_info *info,
4419 struct elf_link_hash_entry *h,
4420 Elf_Internal_Sym *sym)
4422 struct ppc_elf_link_hash_table *htab;
4425 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
4426 h->root.root.string);
4429 htab = ppc_elf_hash_table (info);
4430 BFD_ASSERT (htab->elf.dynobj != NULL);
4432 if (h->plt.offset != (bfd_vma) -1)
4434 Elf_Internal_Rela rela;
4436 bfd_vma reloc_index;
4439 fprintf (stderr, ", plt_offset = %d", h->plt.offset);
4442 /* This symbol has an entry in the procedure linkage table. Set
4445 BFD_ASSERT (h->dynindx != -1);
4446 BFD_ASSERT (htab->plt != NULL && htab->relplt != NULL);
4448 /* We don't need to fill in the .plt. The ppc dynamic linker
4451 /* Fill in the entry in the .rela.plt section. */
4452 rela.r_offset = (htab->plt->output_section->vma
4453 + htab->plt->output_offset
4455 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
4458 reloc_index = (h->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_SLOT_SIZE;
4459 if (reloc_index > PLT_NUM_SINGLE_ENTRIES)
4460 reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
4461 loc = (htab->relplt->contents
4462 + reloc_index * sizeof (Elf32_External_Rela));
4463 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4465 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4467 /* Mark the symbol as undefined, rather than as defined in
4468 the .plt section. Leave the value alone. */
4469 sym->st_shndx = SHN_UNDEF;
4470 /* If the symbol is weak, we do need to clear the value.
4471 Otherwise, the PLT entry would provide a definition for
4472 the symbol even if the symbol wasn't defined anywhere,
4473 and so the symbol would never be NULL. */
4474 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
4480 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
4483 Elf_Internal_Rela rela;
4486 /* This symbols needs a copy reloc. Set it up. */
4489 fprintf (stderr, ", copy");
4492 BFD_ASSERT (h->dynindx != -1);
4494 if (h->size <= elf_gp_size (htab->elf.dynobj))
4498 BFD_ASSERT (s != NULL);
4500 rela.r_offset = (h->root.u.def.value
4501 + h->root.u.def.section->output_section->vma
4502 + h->root.u.def.section->output_offset);
4503 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
4505 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
4506 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4510 fprintf (stderr, "\n");
4513 /* Mark some specially defined symbols as absolute. */
4514 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4515 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4516 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4517 sym->st_shndx = SHN_ABS;
4522 /* Finish up the dynamic sections. */
4525 ppc_elf_finish_dynamic_sections (bfd *output_bfd,
4526 struct bfd_link_info *info)
4529 struct ppc_elf_link_hash_table *htab;
4532 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
4535 htab = ppc_elf_hash_table (info);
4536 sdyn = bfd_get_section_by_name (htab->elf.dynobj, ".dynamic");
4538 if (htab->elf.dynamic_sections_created)
4540 Elf32_External_Dyn *dyncon, *dynconend;
4542 BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
4544 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4545 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
4546 for (; dyncon < dynconend; dyncon++)
4548 Elf_Internal_Dyn dyn;
4551 bfd_elf32_swap_dyn_in (htab->elf.dynobj, dyncon, &dyn);
4557 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4561 dyn.d_un.d_val = htab->relplt->_raw_size;
4566 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4573 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4577 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
4578 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
4581 unsigned char *contents = htab->got->contents;
4582 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents);
4585 bfd_put_32 (output_bfd, 0, contents + 4);
4587 bfd_put_32 (output_bfd,
4588 sdyn->output_section->vma + sdyn->output_offset,
4591 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
4597 /* The RELOCATE_SECTION function is called by the ELF backend linker
4598 to handle the relocations for a section.
4600 The relocs are always passed as Rela structures; if the section
4601 actually uses Rel structures, the r_addend field will always be
4604 This function is responsible for adjust the section contents as
4605 necessary, and (if using Rela relocs and generating a
4606 relocatable output file) adjusting the reloc addend as
4609 This function does not have to worry about setting the reloc
4610 address or the reloc symbol index.
4612 LOCAL_SYMS is a pointer to the swapped in local symbols.
4614 LOCAL_SECTIONS is an array giving the section in the input file
4615 corresponding to the st_shndx field of each local symbol.
4617 The global hash table entry for the global symbols can be found
4618 via elf_sym_hashes (input_bfd).
4620 When generating relocatable output, this function must handle
4621 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4622 going to be the section symbol corresponding to the output
4623 section, which means that the addend must be adjusted
4627 ppc_elf_relocate_section (bfd *output_bfd,
4628 struct bfd_link_info *info,
4630 asection *input_section,
4632 Elf_Internal_Rela *relocs,
4633 Elf_Internal_Sym *local_syms,
4634 asection **local_sections)
4636 Elf_Internal_Shdr *symtab_hdr;
4637 struct elf_link_hash_entry **sym_hashes;
4638 struct ppc_elf_link_hash_table *htab;
4639 Elf_Internal_Rela *rel;
4640 Elf_Internal_Rela *relend;
4641 Elf_Internal_Rela outrel;
4643 asection *sreloc = NULL;
4644 bfd_vma *local_got_offsets;
4645 bfd_boolean ret = TRUE;
4648 fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, "
4649 "%ld relocations%s\n",
4650 bfd_archive_filename (input_bfd),
4651 bfd_section_name(input_bfd, input_section),
4652 (long) input_section->reloc_count,
4653 (info->relocatable) ? " (relocatable)" : "");
4656 if (info->relocatable)
4659 /* Initialize howto table if not already done. */
4660 if (!ppc_elf_howto_table[R_PPC_ADDR32])
4661 ppc_elf_howto_init ();
4663 htab = ppc_elf_hash_table (info);
4664 local_got_offsets = elf_local_got_offsets (input_bfd);
4665 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4666 sym_hashes = elf_sym_hashes (input_bfd);
4668 relend = relocs + input_section->reloc_count;
4669 for (; rel < relend; rel++)
4671 enum elf_ppc_reloc_type r_type;
4673 bfd_reloc_status_type r;
4674 Elf_Internal_Sym *sym;
4676 struct elf_link_hash_entry *h;
4677 const char *sym_name;
4678 reloc_howto_type *howto;
4679 unsigned long r_symndx;
4681 bfd_vma branch_bit, insn, from;
4682 bfd_boolean unresolved_reloc;
4684 unsigned int tls_type, tls_mask, tls_gd;
4686 r_type = ELF32_R_TYPE (rel->r_info);
4690 unresolved_reloc = FALSE;
4692 r_symndx = ELF32_R_SYM (rel->r_info);
4694 if (r_symndx < symtab_hdr->sh_info)
4696 sym = local_syms + r_symndx;
4697 sec = local_sections[r_symndx];
4698 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
4700 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4704 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4705 r_symndx, symtab_hdr, sym_hashes,
4707 unresolved_reloc, warned);
4709 sym_name = h->root.root.string;
4712 /* TLS optimizations. Replace instruction sequences and relocs
4713 based on information we collected in tls_optimize. We edit
4714 RELOCS so that --emit-relocs will output something sensible
4715 for the final instruction stream. */
4718 if (IS_PPC_TLS_RELOC (r_type))
4721 tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
4722 else if (local_got_offsets != NULL)
4725 lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info);
4726 tls_mask = lgot_masks[r_symndx];
4730 /* Ensure reloc mapping code below stays sane. */
4731 if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3)
4732 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
4733 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
4734 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
4735 || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3)
4736 || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
4737 || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
4738 || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
4745 case R_PPC_GOT_TPREL16:
4746 case R_PPC_GOT_TPREL16_LO:
4748 && (tls_mask & TLS_TPREL) == 0)
4751 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
4753 insn |= 0x3c020000; /* addis 0,2,0 */
4754 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
4755 r_type = R_PPC_TPREL16_HA;
4756 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4762 && (tls_mask & TLS_TPREL) == 0)
4765 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
4766 if ((insn & ((31 << 26) | (31 << 11)))
4767 == ((31 << 26) | (2 << 11)))
4768 rtra = insn & ((1 << 26) - (1 << 16));
4769 else if ((insn & ((31 << 26) | (31 << 16)))
4770 == ((31 << 26) | (2 << 16)))
4771 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
4774 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
4777 else if ((insn & (31 << 1)) == 23 << 1
4778 && ((insn & (31 << 6)) < 14 << 6
4779 || ((insn & (31 << 6)) >= 16 << 6
4780 && (insn & (31 << 6)) < 24 << 6)))
4781 /* load and store indexed -> dform. */
4782 insn = (32 | ((insn >> 6) & 31)) << 26;
4783 else if ((insn & (31 << 1)) == 21 << 1
4784 && (insn & (0x1a << 6)) == 0)
4785 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
4786 insn = (((58 | ((insn >> 6) & 4)) << 26)
4787 | ((insn >> 6) & 1));
4788 else if ((insn & (31 << 1)) == 21 << 1
4789 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
4791 insn = (58 << 26) | 2;
4795 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4796 r_type = R_PPC_TPREL16_LO;
4797 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4798 /* Was PPC_TLS which sits on insn boundary, now
4799 PPC_TPREL16_LO which is at insn+2. */
4804 case R_PPC_GOT_TLSGD16_HI:
4805 case R_PPC_GOT_TLSGD16_HA:
4806 tls_gd = TLS_TPRELGD;
4807 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
4811 case R_PPC_GOT_TLSLD16_HI:
4812 case R_PPC_GOT_TLSLD16_HA:
4813 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
4816 if ((tls_mask & tls_gd) != 0)
4817 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
4818 + R_PPC_GOT_TPREL16);
4821 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4823 r_type = R_PPC_NONE;
4825 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4829 case R_PPC_GOT_TLSGD16:
4830 case R_PPC_GOT_TLSGD16_LO:
4831 tls_gd = TLS_TPRELGD;
4832 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
4833 goto tls_get_addr_check;
4836 case R_PPC_GOT_TLSLD16:
4837 case R_PPC_GOT_TLSLD16_LO:
4838 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
4841 if (rel + 1 < relend)
4843 enum elf_ppc_reloc_type r_type2;
4844 unsigned long r_symndx2;
4845 struct elf_link_hash_entry *h2;
4846 bfd_vma insn1, insn2;
4849 /* The next instruction should be a call to
4850 __tls_get_addr. Peek at the reloc to be sure. */
4851 r_type2 = ELF32_R_TYPE (rel[1].r_info);
4852 r_symndx2 = ELF32_R_SYM (rel[1].r_info);
4853 if (r_symndx2 < symtab_hdr->sh_info
4854 || (r_type2 != R_PPC_REL14
4855 && r_type2 != R_PPC_REL14_BRTAKEN
4856 && r_type2 != R_PPC_REL14_BRNTAKEN
4857 && r_type2 != R_PPC_REL24
4858 && r_type2 != R_PPC_PLTREL24))
4861 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
4862 while (h2->root.type == bfd_link_hash_indirect
4863 || h2->root.type == bfd_link_hash_warning)
4864 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
4865 if (h2 == NULL || h2 != htab->tls_get_addr)
4868 /* OK, it checks out. Replace the call. */
4869 offset = rel[1].r_offset;
4870 insn1 = bfd_get_32 (output_bfd,
4871 contents + rel->r_offset - 2);
4872 if ((tls_mask & tls_gd) != 0)
4875 insn1 &= (1 << 26) - 1;
4876 insn1 |= 32 << 26; /* lwz */
4877 insn2 = 0x7c631214; /* add 3,3,2 */
4878 rel[1].r_info = ELF32_R_INFO (r_symndx2, R_PPC_NONE);
4879 r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
4880 + R_PPC_GOT_TPREL16);
4881 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4886 insn1 = 0x3c620000; /* addis 3,2,0 */
4887 insn2 = 0x38630000; /* addi 3,3,0 */
4890 /* Was an LD reloc. */
4892 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
4893 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
4895 r_type = R_PPC_TPREL16_HA;
4896 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
4897 rel[1].r_info = ELF32_R_INFO (r_symndx,
4899 rel[1].r_offset += 2;
4901 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
4902 bfd_put_32 (output_bfd, insn2, contents + offset);
4905 /* We changed the symbol on an LD reloc. Start over
4906 in order to get h, sym, sec etc. right. */
4915 /* Handle other relocations that tweak non-addend part of insn. */
4922 /* Branch taken prediction relocations. */
4923 case R_PPC_ADDR14_BRTAKEN:
4924 case R_PPC_REL14_BRTAKEN:
4925 branch_bit = BRANCH_PREDICT_BIT;
4928 /* Branch not taken prediction relocations. */
4929 case R_PPC_ADDR14_BRNTAKEN:
4930 case R_PPC_REL14_BRNTAKEN:
4931 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
4932 insn &= ~BRANCH_PREDICT_BIT;
4935 from = (rel->r_offset
4936 + input_section->output_offset
4937 + input_section->output_section->vma);
4939 /* Invert 'y' bit if not the default. */
4940 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
4941 insn ^= BRANCH_PREDICT_BIT;
4943 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4947 addend = rel->r_addend;
4950 if (r_type < R_PPC_max)
4951 howto = ppc_elf_howto_table[r_type];
4955 (*_bfd_error_handler)
4956 (_("%s: unknown relocation type %d for symbol %s"),
4957 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
4959 bfd_set_error (bfd_error_bad_value);
4965 case R_PPC_EMB_MRKREF:
4966 case R_PPC_GNU_VTINHERIT:
4967 case R_PPC_GNU_VTENTRY:
4970 /* GOT16 relocations. Like an ADDR16 using the symbol's
4971 address in the GOT as relocation value instead of the
4972 symbol's value itself. Also, create a GOT entry for the
4973 symbol and put the symbol value there. */
4974 case R_PPC_GOT_TLSGD16:
4975 case R_PPC_GOT_TLSGD16_LO:
4976 case R_PPC_GOT_TLSGD16_HI:
4977 case R_PPC_GOT_TLSGD16_HA:
4978 tls_type = TLS_TLS | TLS_GD;
4981 case R_PPC_GOT_TLSLD16:
4982 case R_PPC_GOT_TLSLD16_LO:
4983 case R_PPC_GOT_TLSLD16_HI:
4984 case R_PPC_GOT_TLSLD16_HA:
4985 tls_type = TLS_TLS | TLS_LD;
4988 case R_PPC_GOT_TPREL16:
4989 case R_PPC_GOT_TPREL16_LO:
4990 case R_PPC_GOT_TPREL16_HI:
4991 case R_PPC_GOT_TPREL16_HA:
4992 tls_type = TLS_TLS | TLS_TPREL;
4995 case R_PPC_GOT_DTPREL16:
4996 case R_PPC_GOT_DTPREL16_LO:
4997 case R_PPC_GOT_DTPREL16_HI:
4998 case R_PPC_GOT_DTPREL16_HA:
4999 tls_type = TLS_TLS | TLS_DTPREL;
5003 case R_PPC_GOT16_LO:
5004 case R_PPC_GOT16_HI:
5005 case R_PPC_GOT16_HA:
5008 /* Relocation is to the entry for this symbol in the global
5014 if (htab->got == NULL)
5018 if (tls_type == (TLS_TLS | TLS_LD)
5020 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
5021 offp = &htab->tlsld_got.offset;
5025 dyn = htab->elf.dynamic_sections_created;
5026 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
5028 && SYMBOL_REFERENCES_LOCAL (info, h)))
5029 /* This is actually a static link, or it is a
5030 -Bsymbolic link and the symbol is defined
5031 locally, or the symbol was forced to be local
5032 because of a version file. */
5037 unresolved_reloc = FALSE;
5039 offp = &h->got.offset;
5043 if (local_got_offsets == NULL)
5045 offp = &local_got_offsets[r_symndx];
5048 /* The offset must always be a multiple of 4. We use the
5049 least significant bit to record whether we have already
5050 processed this entry. */
5056 unsigned int tls_m = (tls_mask
5057 & (TLS_LD | TLS_GD | TLS_DTPREL
5058 | TLS_TPREL | TLS_TPRELGD));
5060 if (offp == &htab->tlsld_got.offset)
5063 || !(h->elf_link_hash_flags
5064 & ELF_LINK_HASH_DEF_DYNAMIC))
5067 /* We might have multiple got entries for this sym.
5068 Initialize them all. */
5073 if ((tls_m & TLS_LD) != 0)
5075 tls_ty = TLS_TLS | TLS_LD;
5078 else if ((tls_m & TLS_GD) != 0)
5080 tls_ty = TLS_TLS | TLS_GD;
5083 else if ((tls_m & TLS_DTPREL) != 0)
5085 tls_ty = TLS_TLS | TLS_DTPREL;
5086 tls_m &= ~TLS_DTPREL;
5088 else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
5090 tls_ty = TLS_TLS | TLS_TPREL;
5094 /* Generate relocs for the dynamic linker. */
5095 if ((info->shared || indx != 0)
5097 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5098 || h->root.type != bfd_link_hash_undefweak))
5100 outrel.r_offset = (htab->got->output_section->vma
5101 + htab->got->output_offset
5103 outrel.r_addend = 0;
5104 if (tls_ty & (TLS_LD | TLS_GD))
5106 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
5107 if (tls_ty == (TLS_TLS | TLS_GD))
5109 loc = htab->relgot->contents;
5110 loc += (htab->relgot->reloc_count++
5111 * sizeof (Elf32_External_Rela));
5112 bfd_elf32_swap_reloca_out (output_bfd,
5114 outrel.r_offset += 4;
5116 = ELF32_R_INFO (indx, R_PPC_DTPREL32);
5119 else if (tls_ty == (TLS_TLS | TLS_DTPREL))
5120 outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
5121 else if (tls_ty == (TLS_TLS | TLS_TPREL))
5122 outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
5124 outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE);
5126 outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
5129 outrel.r_addend += relocation;
5130 if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
5131 outrel.r_addend -= htab->elf.tls_sec->vma;
5133 loc = htab->relgot->contents;
5134 loc += (htab->relgot->reloc_count++
5135 * sizeof (Elf32_External_Rela));
5136 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5139 /* Init the .got section contents if we're not
5140 emitting a reloc. */
5143 bfd_vma value = relocation;
5145 if (tls_ty == (TLS_TLS | TLS_LD))
5147 else if (tls_ty != 0)
5149 value -= htab->elf.tls_sec->vma + DTP_OFFSET;
5150 if (tls_ty == (TLS_TLS | TLS_TPREL))
5151 value += DTP_OFFSET - TP_OFFSET;
5153 if (tls_ty == (TLS_TLS | TLS_GD))
5155 bfd_put_32 (output_bfd, value,
5156 htab->got->contents + off + 4);
5160 bfd_put_32 (output_bfd, value,
5161 htab->got->contents + off);
5165 if (tls_ty & (TLS_LD | TLS_GD))
5174 if (off >= (bfd_vma) -2)
5177 if ((tls_type & TLS_TLS) != 0)
5179 if (tls_type != (TLS_TLS | TLS_LD))
5181 if ((tls_mask & TLS_LD) != 0
5183 || !(h->elf_link_hash_flags
5184 & ELF_LINK_HASH_DEF_DYNAMIC)))
5186 if (tls_type != (TLS_TLS | TLS_GD))
5188 if ((tls_mask & TLS_GD) != 0)
5190 if (tls_type != (TLS_TLS | TLS_DTPREL))
5192 if ((tls_mask & TLS_DTPREL) != 0)
5199 relocation = htab->got->output_offset + off - 4;
5201 /* Addends on got relocations don't make much sense.
5202 x+off@got is actually x@got+off, and since the got is
5203 generated by a hash table traversal, the value in the
5204 got at entry m+n bears little relation to the entry m. */
5206 (*_bfd_error_handler)
5207 (_("%s(%s+0x%lx): non-zero addend on %s reloc against `%s'"),
5208 bfd_archive_filename (input_bfd),
5209 bfd_get_section_name (input_bfd, input_section),
5210 (long) rel->r_offset,
5216 /* Relocations that need no special processing. */
5217 case R_PPC_LOCAL24PC:
5218 /* It makes no sense to point a local relocation
5219 at a symbol not in this object. */
5220 if (unresolved_reloc)
5222 if (! (*info->callbacks->undefined_symbol) (info,
5223 h->root.root.string,
5233 case R_PPC_DTPREL16:
5234 case R_PPC_DTPREL16_LO:
5235 case R_PPC_DTPREL16_HI:
5236 case R_PPC_DTPREL16_HA:
5237 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
5240 /* Relocations that may need to be propagated if this is a shared
5243 case R_PPC_TPREL16_LO:
5244 case R_PPC_TPREL16_HI:
5245 case R_PPC_TPREL16_HA:
5246 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
5247 /* The TPREL16 relocs shouldn't really be used in shared
5248 libs as they will result in DT_TEXTREL being set, but
5249 support them anyway. */
5253 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
5256 case R_PPC_DTPREL32:
5257 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
5260 case R_PPC_DTPMOD32:
5268 case R_PPC_REL14_BRTAKEN:
5269 case R_PPC_REL14_BRNTAKEN:
5270 /* If these relocations are not to a named symbol, they can be
5271 handled right here, no need to bother the dynamic linker. */
5272 if (SYMBOL_REFERENCES_LOCAL (info, h)
5273 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
5277 /* Relocations that always need to be propagated if this is a shared
5282 case R_PPC_ADDR16_LO:
5283 case R_PPC_ADDR16_HI:
5284 case R_PPC_ADDR16_HA:
5286 case R_PPC_ADDR14_BRTAKEN:
5287 case R_PPC_ADDR14_BRNTAKEN:
5290 /* r_symndx will be zero only for relocs against symbols
5291 from removed linkonce sections, or sections discarded by
5300 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5301 || h->root.type != bfd_link_hash_undefweak)
5302 && (MUST_BE_DYN_RELOC (r_type)
5303 || !SYMBOL_CALLS_LOCAL (info, h)))
5304 || (ELIMINATE_COPY_RELOCS
5306 && (input_section->flags & SEC_ALLOC) != 0
5309 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
5310 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5311 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
5316 fprintf (stderr, "ppc_elf_relocate_section needs to "
5317 "create relocation for %s\n",
5318 (h && h->root.root.string
5319 ? h->root.root.string : "<unknown>"));
5322 /* When generating a shared object, these relocations
5323 are copied into the output file to be resolved at run
5329 name = (bfd_elf_string_from_elf_section
5331 elf_elfheader (input_bfd)->e_shstrndx,
5332 elf_section_data (input_section)->rel_hdr.sh_name));
5336 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
5337 && strcmp (bfd_get_section_name (input_bfd,
5341 sreloc = bfd_get_section_by_name (htab->elf.dynobj, name);
5342 BFD_ASSERT (sreloc != NULL);
5348 _bfd_elf_section_offset (output_bfd, info, input_section,
5350 if (outrel.r_offset == (bfd_vma) -1
5351 || outrel.r_offset == (bfd_vma) -2)
5352 skip = (int) outrel.r_offset;
5353 outrel.r_offset += (input_section->output_section->vma
5354 + input_section->output_offset);
5357 memset (&outrel, 0, sizeof outrel);
5358 else if (!SYMBOL_REFERENCES_LOCAL (info, h))
5360 unresolved_reloc = FALSE;
5361 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
5362 outrel.r_addend = rel->r_addend;
5366 outrel.r_addend = relocation + rel->r_addend;
5368 if (r_type == R_PPC_ADDR32)
5369 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
5374 if (bfd_is_abs_section (sec))
5376 else if (sec == NULL || sec->owner == NULL)
5378 bfd_set_error (bfd_error_bad_value);
5385 /* We are turning this relocation into one
5386 against a section symbol. It would be
5387 proper to subtract the symbol's value,
5388 osec->vma, from the emitted reloc addend,
5389 but ld.so expects buggy relocs. */
5390 osec = sec->output_section;
5391 indx = elf_section_data (osec)->dynindx;
5392 BFD_ASSERT (indx > 0);
5395 printf ("indx=%d section=%s flags=%08x name=%s\n",
5396 indx, osec->name, osec->flags,
5397 h->root.root.string);
5401 outrel.r_info = ELF32_R_INFO (indx, r_type);
5405 loc = sreloc->contents;
5406 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5407 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5412 /* This reloc will be computed at runtime. We clear the memory
5413 so that it contains predictable value. */
5415 && ((input_section->flags & SEC_ALLOC) != 0
5416 || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
5418 relocation = howto->pc_relative ? outrel.r_offset : 0;
5425 case R_PPC_RELAX32PC:
5426 relocation -= (input_section->output_section->vma
5427 + input_section->output_offset
5428 + rel->r_offset - 4);
5435 t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
5436 t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
5438 /* We're clearing the bits for R_PPC_ADDR16_HA
5439 and R_PPC_ADDR16_LO here. */
5443 /* t0 is HA, t1 is LO */
5444 relocation += addend;
5445 t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
5446 t1 |= relocation & 0xffff;
5448 bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
5449 bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
5453 /* Indirect .sdata relocation. */
5454 case R_PPC_EMB_SDAI16:
5455 BFD_ASSERT (htab->sdata != NULL);
5457 = elf_finish_pointer_linker_section (output_bfd, input_bfd, info,
5458 htab->sdata, h, relocation,
5459 rel, R_PPC_RELATIVE);
5462 /* Indirect .sdata2 relocation. */
5463 case R_PPC_EMB_SDA2I16:
5464 BFD_ASSERT (htab->sdata2 != NULL);
5466 = elf_finish_pointer_linker_section (output_bfd, input_bfd, info,
5467 htab->sdata2, h, relocation,
5468 rel, R_PPC_RELATIVE);
5471 /* Handle the TOC16 reloc. We want to use the offset within the .got
5472 section, not the actual VMA. This is appropriate when generating
5473 an embedded ELF object, for which the .got section acts like the
5474 AIX .toc section. */
5475 case R_PPC_TOC16: /* phony GOT16 relocations */
5476 BFD_ASSERT (sec != NULL);
5477 BFD_ASSERT (bfd_is_und_section (sec)
5478 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
5479 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0)
5481 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
5484 case R_PPC_PLTREL24:
5485 /* Relocation is to the entry for this symbol in the
5486 procedure linkage table. */
5487 BFD_ASSERT (h != NULL);
5489 if (h->plt.offset == (bfd_vma) -1
5490 || htab->plt == NULL)
5492 /* We didn't make a PLT entry for this symbol. This
5493 happens when statically linking PIC code, or when
5494 using -Bsymbolic. */
5498 unresolved_reloc = FALSE;
5499 relocation = (htab->plt->output_section->vma
5500 + htab->plt->output_offset
5504 /* Relocate against _SDA_BASE_. */
5505 case R_PPC_SDAREL16:
5508 const struct elf_link_hash_entry *sh;
5510 BFD_ASSERT (sec != NULL);
5511 name = bfd_get_section_name (abfd, sec->output_section);
5512 if (! ((strncmp (name, ".sdata", 6) == 0
5513 && (name[6] == 0 || name[6] == '.'))
5514 || (strncmp (name, ".sbss", 5) == 0
5515 && (name[5] == 0 || name[5] == '.'))))
5517 (*_bfd_error_handler)
5518 (_("%s: the target (%s) of a %s relocation is "
5519 "in the wrong output section (%s)"),
5520 bfd_archive_filename (input_bfd),
5525 sh = htab->sdata->sym_hash;
5526 addend -= (sh->root.u.def.value
5527 + sh->root.u.def.section->output_section->vma
5528 + sh->root.u.def.section->output_offset);
5532 /* Relocate against _SDA2_BASE_. */
5533 case R_PPC_EMB_SDA2REL:
5536 const struct elf_link_hash_entry *sh;
5538 BFD_ASSERT (sec != NULL);
5539 name = bfd_get_section_name (abfd, sec->output_section);
5540 if (! (strncmp (name, ".sdata2", 7) == 0
5541 || strncmp (name, ".sbss2", 6) == 0))
5543 (*_bfd_error_handler)
5544 (_("%s: the target (%s) of a %s relocation is "
5545 "in the wrong output section (%s)"),
5546 bfd_archive_filename (input_bfd),
5551 bfd_set_error (bfd_error_bad_value);
5555 sh = htab->sdata2->sym_hash;
5556 addend -= (sh->root.u.def.value
5557 + sh->root.u.def.section->output_section->vma
5558 + sh->root.u.def.section->output_offset);
5562 /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */
5563 case R_PPC_EMB_SDA21:
5564 case R_PPC_EMB_RELSDA:
5567 const struct elf_link_hash_entry *sh;
5570 BFD_ASSERT (sec != NULL);
5571 name = bfd_get_section_name (abfd, sec->output_section);
5572 if (((strncmp (name, ".sdata", 6) == 0
5573 && (name[6] == 0 || name[6] == '.'))
5574 || (strncmp (name, ".sbss", 5) == 0
5575 && (name[5] == 0 || name[5] == '.'))))
5578 sh = htab->sdata->sym_hash;
5579 addend -= (sh->root.u.def.value
5580 + sh->root.u.def.section->output_section->vma
5581 + sh->root.u.def.section->output_offset);
5584 else if (strncmp (name, ".sdata2", 7) == 0
5585 || strncmp (name, ".sbss2", 6) == 0)
5588 sh = htab->sdata2->sym_hash;
5589 addend -= (sh->root.u.def.value
5590 + sh->root.u.def.section->output_section->vma
5591 + sh->root.u.def.section->output_offset);
5594 else if (strcmp (name, ".PPC.EMB.sdata0") == 0
5595 || strcmp (name, ".PPC.EMB.sbss0") == 0)
5602 (*_bfd_error_handler)
5603 (_("%s: the target (%s) of a %s relocation is "
5604 "in the wrong output section (%s)"),
5605 bfd_archive_filename (input_bfd),
5610 bfd_set_error (bfd_error_bad_value);
5615 if (r_type == R_PPC_EMB_SDA21)
5616 { /* fill in register field */
5617 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
5618 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
5619 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5624 /* Relocate against the beginning of the section. */
5626 case R_PPC_SECTOFF_LO:
5627 case R_PPC_SECTOFF_HI:
5628 case R_PPC_SECTOFF_HA:
5629 BFD_ASSERT (sec != NULL);
5630 addend -= sec->output_section->vma;
5633 /* Negative relocations. */
5634 case R_PPC_EMB_NADDR32:
5635 case R_PPC_EMB_NADDR16:
5636 case R_PPC_EMB_NADDR16_LO:
5637 case R_PPC_EMB_NADDR16_HI:
5638 case R_PPC_EMB_NADDR16_HA:
5639 addend -= 2 * relocation;
5643 case R_PPC_GLOB_DAT:
5644 case R_PPC_JMP_SLOT:
5645 case R_PPC_RELATIVE:
5647 case R_PPC_PLTREL32:
5648 case R_PPC_PLT16_LO:
5649 case R_PPC_PLT16_HI:
5650 case R_PPC_PLT16_HA:
5652 case R_PPC_EMB_RELSEC16:
5653 case R_PPC_EMB_RELST_LO:
5654 case R_PPC_EMB_RELST_HI:
5655 case R_PPC_EMB_RELST_HA:
5656 case R_PPC_EMB_BIT_FLD:
5657 (*_bfd_error_handler)
5658 (_("%s: relocation %s is not yet supported for symbol %s."),
5659 bfd_archive_filename (input_bfd),
5663 bfd_set_error (bfd_error_invalid_operation);
5668 /* Do any further special processing. */
5674 case R_PPC_ADDR16_HA:
5675 case R_PPC_GOT16_HA:
5676 case R_PPC_PLT16_HA:
5677 case R_PPC_SECTOFF_HA:
5678 case R_PPC_TPREL16_HA:
5679 case R_PPC_DTPREL16_HA:
5680 case R_PPC_GOT_TLSGD16_HA:
5681 case R_PPC_GOT_TLSLD16_HA:
5682 case R_PPC_GOT_TPREL16_HA:
5683 case R_PPC_GOT_DTPREL16_HA:
5684 case R_PPC_EMB_NADDR16_HA:
5685 case R_PPC_EMB_RELST_HA:
5686 /* It's just possible that this symbol is a weak symbol
5687 that's not actually defined anywhere. In that case,
5688 'sec' would be NULL, and we should leave the symbol
5689 alone (it will be set to zero elsewhere in the link). */
5691 /* Add 0x10000 if sign bit in 0:15 is set.
5692 Bits 0:15 are not used. */
5698 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
5699 "offset = %ld, addend = %ld\n",
5704 (long) rel->r_offset,
5708 if (unresolved_reloc
5709 && !((input_section->flags & SEC_DEBUGGING) != 0
5710 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
5712 (*_bfd_error_handler)
5713 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
5714 bfd_archive_filename (input_bfd),
5715 bfd_get_section_name (input_bfd, input_section),
5716 (long) rel->r_offset,
5722 r = _bfd_final_link_relocate (howto,
5730 if (r != bfd_reloc_ok)
5732 if (sym_name == NULL)
5733 sym_name = "(null)";
5734 if (r == bfd_reloc_overflow)
5739 && h->root.type == bfd_link_hash_undefweak
5740 && howto->pc_relative)
5742 /* Assume this is a call protected by other code that
5743 detect the symbol is undefined. If this is the case,
5744 we can safely ignore the overflow. If not, the
5745 program is hosed anyway, and a little warning isn't
5751 if (! (*info->callbacks->reloc_overflow) (info,
5762 (*_bfd_error_handler)
5763 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
5764 bfd_archive_filename (input_bfd),
5765 bfd_get_section_name (input_bfd, input_section),
5766 (long) rel->r_offset, howto->name, sym_name, (int) r);
5773 fprintf (stderr, "\n");
5779 static enum elf_reloc_type_class
5780 ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela)
5782 switch (ELF32_R_TYPE (rela->r_info))
5784 case R_PPC_RELATIVE:
5785 return reloc_class_relative;
5788 case R_PPC_JMP_SLOT:
5789 return reloc_class_plt;
5791 return reloc_class_copy;
5793 return reloc_class_normal;
5797 /* Support for core dump NOTE sections. */
5800 ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
5803 unsigned int raw_size;
5805 switch (note->descsz)
5810 case 268: /* Linux/PPC. */
5812 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
5815 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
5824 /* Make a ".reg/999" section. */
5825 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
5826 raw_size, note->descpos + offset);
5830 ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
5832 switch (note->descsz)
5837 case 128: /* Linux/PPC elf_prpsinfo. */
5838 elf_tdata (abfd)->core_program
5839 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
5840 elf_tdata (abfd)->core_command
5841 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
5844 /* Note that for some reason, a spurious space is tacked
5845 onto the end of the args in some (at least one anyway)
5846 implementations, so strip it off if it exists. */
5849 char *command = elf_tdata (abfd)->core_command;
5850 int n = strlen (command);
5852 if (0 < n && command[n - 1] == ' ')
5853 command[n - 1] = '\0';
5859 /* Very simple linked list structure for recording apuinfo values. */
5860 typedef struct apuinfo_list
5862 struct apuinfo_list *next;
5863 unsigned long value;
5867 static apuinfo_list *head;
5871 apuinfo_list_init (void)
5877 apuinfo_list_add (unsigned long value)
5879 apuinfo_list *entry = head;
5881 while (entry != NULL)
5883 if (entry->value == value)
5885 entry = entry->next;
5888 entry = bfd_malloc (sizeof (* entry));
5892 entry->value = value;
5898 apuinfo_list_length (void)
5900 apuinfo_list *entry;
5901 unsigned long count;
5903 for (entry = head, count = 0;
5905 entry = entry->next)
5911 static inline unsigned long
5912 apuinfo_list_element (unsigned long number)
5914 apuinfo_list * entry;
5918 entry = entry->next)
5921 return entry ? entry->value : 0;
5925 apuinfo_list_finish (void)
5927 apuinfo_list *entry;
5929 for (entry = head; entry;)
5931 apuinfo_list *next = entry->next;
5939 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
5940 #define APUINFO_LABEL "APUinfo"
5942 /* Scan the input BFDs and create a linked list of
5943 the APUinfo values that will need to be emitted. */
5946 ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
5951 unsigned num_input_sections;
5952 bfd_size_type output_section_size;
5954 unsigned num_entries;
5955 unsigned long offset;
5956 unsigned long length;
5957 const char *error_message = NULL;
5959 if (link_info == NULL)
5962 /* Scan the input bfds, looking for apuinfo sections. */
5963 num_input_sections = 0;
5964 output_section_size = 0;
5966 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
5968 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
5971 ++ num_input_sections;
5972 output_section_size += asec->_raw_size;
5976 /* We need at least one input sections
5977 in order to make merging worthwhile. */
5978 if (num_input_sections < 1)
5981 /* Just make sure that the output section exists as well. */
5982 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
5986 /* Allocate a buffer for the contents of the input sections. */
5987 buffer = bfd_malloc (output_section_size);
5992 apuinfo_list_init ();
5994 /* Read in the input sections contents. */
5995 for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
5997 unsigned long datum;
6000 asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
6004 length = asec->_raw_size;
6007 error_message = _("corrupt or empty %s section in %s");
6011 if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
6012 || (bfd_bread (buffer + offset, length, ibfd) != length))
6014 error_message = _("unable to read in %s section from %s");
6018 /* Process the contents of the section. */
6019 ptr = buffer + offset;
6020 error_message = _("corrupt %s section in %s");
6022 /* Verify the contents of the header. Note - we have to
6023 extract the values this way in order to allow for a
6024 host whose endian-ness is different from the target. */
6025 datum = bfd_get_32 (ibfd, ptr);
6026 if (datum != sizeof APUINFO_LABEL)
6029 datum = bfd_get_32 (ibfd, ptr + 8);
6033 if (strcmp (ptr + 12, APUINFO_LABEL) != 0)
6036 /* Get the number of bytes used for apuinfo entries. */
6037 datum = bfd_get_32 (ibfd, ptr + 4);
6038 if (datum + 20 != length)
6041 /* Make sure that we do not run off the end of the section. */
6042 if (offset + length > output_section_size)
6045 /* Scan the apuinfo section, building a list of apuinfo numbers. */
6046 for (i = 0; i < datum; i += 4)
6047 apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i));
6049 /* Update the offset. */
6053 error_message = NULL;
6055 /* Compute the size of the output section. */
6056 num_entries = apuinfo_list_length ();
6057 output_section_size = 20 + num_entries * 4;
6059 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
6061 if (! bfd_set_section_size (abfd, asec, output_section_size))
6063 error_message = _("warning: unable to set size of %s section in %s");
6069 (*_bfd_error_handler) (error_message, APUINFO_SECTION_NAME,
6070 bfd_archive_filename (ibfd));
6074 /* Prevent the output section from accumulating the input sections'
6075 contents. We have already stored this in our linked list structure. */
6078 ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
6080 bfd_byte *contents ATTRIBUTE_UNUSED)
6082 return (apuinfo_list_length ()
6083 && strcmp (asec->name, APUINFO_SECTION_NAME) == 0);
6087 /* Finally we can generate the output section. */
6090 ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
6095 unsigned num_entries;
6096 bfd_size_type length;
6098 asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
6102 if (apuinfo_list_length () == 0)
6105 length = asec->_raw_size;
6109 buffer = bfd_malloc (length);
6112 (*_bfd_error_handler)
6113 (_("failed to allocate space for new APUinfo section."));
6117 /* Create the apuinfo header. */
6118 num_entries = apuinfo_list_length ();
6119 bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
6120 bfd_put_32 (abfd, num_entries * 4, buffer + 4);
6121 bfd_put_32 (abfd, 0x2, buffer + 8);
6122 strcpy (buffer + 12, APUINFO_LABEL);
6125 for (i = 0; i < num_entries; i++)
6127 bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
6131 if (length != asec->_raw_size)
6132 (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
6134 if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
6135 (*_bfd_error_handler) (_("failed to install new APUinfo section."));
6139 apuinfo_list_finish ();
6142 /* Add extra PPC sections -- Note, for now, make .sbss2 and
6143 .PPC.EMB.sbss0 a normal section, and not a bss section so
6144 that the linker doesn't crater when trying to make more than
6147 static struct bfd_elf_special_section const ppc_elf_special_sections[]=
6149 { ".tags", 5, 0, SHT_ORDERED, SHF_ALLOC },
6150 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
6151 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
6152 { ".sdata2", 7, -2, SHT_PROGBITS, SHF_ALLOC },
6153 { ".sbss2", 6, -2, SHT_PROGBITS, SHF_ALLOC },
6154 { ".PPC.EMB.apuinfo", 16, 0, SHT_NOTE, 0 },
6155 { ".PPC.EMB.sdata0", 15, 0, SHT_PROGBITS, SHF_ALLOC },
6156 { ".PPC.EMB.sbss0", 14, 0, SHT_PROGBITS, SHF_ALLOC },
6157 { ".plt", 4, 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
6158 { NULL, 0, 0, 0, 0 }
6161 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
6162 #define TARGET_LITTLE_NAME "elf32-powerpcle"
6163 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
6164 #define TARGET_BIG_NAME "elf32-powerpc"
6165 #define ELF_ARCH bfd_arch_powerpc
6166 #define ELF_MACHINE_CODE EM_PPC
6167 #ifdef __QNXTARGET__
6168 #define ELF_MAXPAGESIZE 0x1000
6170 #define ELF_MAXPAGESIZE 0x10000
6172 #define elf_info_to_howto ppc_elf_info_to_howto
6174 #ifdef EM_CYGNUS_POWERPC
6175 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
6179 #define ELF_MACHINE_ALT2 EM_PPC_OLD
6182 #define elf_backend_plt_not_loaded 1
6183 #define elf_backend_got_symbol_offset 4
6184 #define elf_backend_can_gc_sections 1
6185 #define elf_backend_can_refcount 1
6186 #define elf_backend_got_header_size 12
6187 #define elf_backend_rela_normal 1
6189 #define bfd_elf32_mkobject ppc_elf_mkobject
6190 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
6191 #define bfd_elf32_bfd_relax_section ppc_elf_relax_section
6192 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
6193 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
6194 #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create
6196 #define elf_backend_object_p ppc_elf_object_p
6197 #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook
6198 #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook
6199 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
6200 #define elf_backend_relocate_section ppc_elf_relocate_section
6201 #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections
6202 #define elf_backend_check_relocs ppc_elf_check_relocs
6203 #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol
6204 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
6205 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
6206 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
6207 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
6208 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
6209 #define elf_backend_fake_sections ppc_elf_fake_sections
6210 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
6211 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
6212 #define elf_backend_grok_prstatus ppc_elf_grok_prstatus
6213 #define elf_backend_grok_psinfo ppc_elf_grok_psinfo
6214 #define elf_backend_reloc_type_class ppc_elf_reloc_type_class
6215 #define elf_backend_begin_write_processing ppc_elf_begin_write_processing
6216 #define elf_backend_final_write_processing ppc_elf_final_write_processing
6217 #define elf_backend_write_section ppc_elf_write_section
6218 #define elf_backend_special_sections ppc_elf_special_sections
6220 #include "elf32-target.h"
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