1 /* Alpha specific support for 64-bit ELF
2 Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
3 Contributed by Richard Henderson <rth@tamu.edu>.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 /* We need a published ABI spec for this. Until one comes out, don't
22 assume this'll remain unchanged forever. */
29 #include "elf/alpha.h"
33 #define NO_COFF_RELOCS
34 #define NO_COFF_SYMBOLS
35 #define NO_COFF_LINENOS
37 /* Get the ECOFF swapping routines. Needed for the debug information. */
38 #include "coff/internal.h"
40 #include "coff/symconst.h"
41 #include "coff/ecoff.h"
42 #include "coff/alpha.h"
47 #include "ecoffswap.h"
49 static boolean elf64_alpha_mkobject
PARAMS ((bfd
*));
50 static struct bfd_hash_entry
* elf64_alpha_link_hash_newfunc
51 PARAMS((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
52 static struct bfd_link_hash_table
* elf64_alpha_bfd_link_hash_table_create
55 static bfd_reloc_status_type elf64_alpha_reloc_nil
56 PARAMS((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
57 static bfd_reloc_status_type elf64_alpha_reloc_bad
58 PARAMS((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
59 static bfd_reloc_status_type elf64_alpha_do_reloc_gpdisp
60 PARAMS((bfd
*, bfd_vma
, bfd_byte
*, bfd_byte
*));
61 static bfd_reloc_status_type elf64_alpha_reloc_gpdisp
62 PARAMS((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
64 static reloc_howto_type
* elf64_alpha_bfd_reloc_type_lookup
65 PARAMS((bfd
*, bfd_reloc_code_real_type
));
66 static void elf64_alpha_info_to_howto
67 PARAMS((bfd
*, arelent
*, Elf64_Internal_Rela
*));
69 static boolean elf64_alpha_object_p
71 static boolean elf64_alpha_section_from_shdr
72 PARAMS((bfd
*, Elf64_Internal_Shdr
*, char *));
73 static boolean elf64_alpha_fake_sections
74 PARAMS((bfd
*, Elf64_Internal_Shdr
*, asection
*));
75 static int elf64_alpha_additional_program_headers
77 static boolean elf64_alpha_create_got_section
78 PARAMS((bfd
*, struct bfd_link_info
*));
79 static boolean elf64_alpha_create_dynamic_sections
80 PARAMS((bfd
*, struct bfd_link_info
*));
82 static boolean elf64_alpha_read_ecoff_info
83 PARAMS((bfd
*, asection
*, struct ecoff_debug_info
*));
84 static boolean elf64_alpha_is_local_label_name
85 PARAMS((bfd
*, const char *));
86 static boolean elf64_alpha_find_nearest_line
87 PARAMS((bfd
*, asection
*, asymbol
**, bfd_vma
, const char **,
88 const char **, unsigned int *));
90 #if defined(__STDC__) || defined(ALMOST_STDC)
91 struct alpha_elf_link_hash_entry
;
94 static boolean elf64_alpha_output_extsym
95 PARAMS((struct alpha_elf_link_hash_entry
*, PTR
));
97 static boolean elf64_alpha_can_merge_gots
98 PARAMS((bfd
*, bfd
*));
99 static void elf64_alpha_merge_gots
100 PARAMS((bfd
*, bfd
*));
101 static boolean elf64_alpha_calc_got_offsets_for_symbol
102 PARAMS ((struct alpha_elf_link_hash_entry
*, PTR
));
103 static void elf64_alpha_calc_got_offsets
PARAMS ((struct bfd_link_info
*));
104 static void elf64_alpha_strip_section_from_output
PARAMS ((asection
*));
105 static boolean elf64_alpha_size_got_sections
106 PARAMS ((bfd
*, struct bfd_link_info
*));
107 static boolean elf64_alpha_always_size_sections
108 PARAMS ((bfd
*, struct bfd_link_info
*));
109 static boolean elf64_alpha_calc_dynrel_sizes
110 PARAMS ((struct alpha_elf_link_hash_entry
*, struct bfd_link_info
*));
111 static boolean elf64_alpha_add_symbol_hook
112 PARAMS ((bfd
*, struct bfd_link_info
*, const Elf_Internal_Sym
*,
113 const char **, flagword
*, asection
**, bfd_vma
*));
114 static boolean elf64_alpha_check_relocs
115 PARAMS((bfd
*, struct bfd_link_info
*, asection
*sec
,
116 const Elf_Internal_Rela
*));
117 static boolean elf64_alpha_adjust_dynamic_symbol
118 PARAMS((struct bfd_link_info
*, struct elf_link_hash_entry
*));
119 static boolean elf64_alpha_size_dynamic_sections
120 PARAMS((bfd
*, struct bfd_link_info
*));
121 static boolean elf64_alpha_adjust_dynindx
122 PARAMS((struct elf_link_hash_entry
*, PTR
));
123 static boolean elf64_alpha_relocate_section
124 PARAMS((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
125 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**));
126 static boolean elf64_alpha_finish_dynamic_symbol
127 PARAMS((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
128 Elf_Internal_Sym
*));
129 static boolean elf64_alpha_finish_dynamic_sections
130 PARAMS((bfd
*, struct bfd_link_info
*));
131 static boolean elf64_alpha_final_link
132 PARAMS((bfd
*, struct bfd_link_info
*));
135 struct alpha_elf_link_hash_entry
137 struct elf_link_hash_entry root
;
139 /* External symbol information. */
142 /* Cumulative flags for all the .got entries. */
145 /* Contexts (LITUSE) in which a literal was referenced. */
146 #define ALPHA_ELF_LINK_HASH_LU_ADDR 0x01
147 #define ALPHA_ELF_LINK_HASH_LU_MEM 0x02
148 #define ALPHA_ELF_LINK_HASH_LU_BYTE 0x04
149 #define ALPHA_ELF_LINK_HASH_LU_FUNC 0x08
151 /* Used to implement multiple .got subsections. */
152 struct alpha_elf_got_entry
154 struct alpha_elf_got_entry
*next
;
156 /* which .got subsection? */
159 /* the addend in effect for this entry. */
162 /* the .got offset for this entry. */
167 /* An additional flag. */
168 #define ALPHA_ELF_GOT_ENTRY_RELOCS_DONE 0x10
173 /* used to count non-got, non-plt relocations for delayed sizing
174 of relocation sections. */
175 struct alpha_elf_reloc_entry
177 struct alpha_elf_reloc_entry
*next
;
179 /* which .reloc section? */
182 /* what kind of relocation? */
185 /* how many did we find? */
190 /* Alpha ELF linker hash table. */
192 struct alpha_elf_link_hash_table
194 struct elf_link_hash_table root
;
196 /* The head of a list of .got subsections linked through
197 alpha_elf_tdata(abfd)->got_link_next. */
201 /* Look up an entry in a Alpha ELF linker hash table. */
203 #define alpha_elf_link_hash_lookup(table, string, create, copy, follow) \
204 ((struct alpha_elf_link_hash_entry *) \
205 elf_link_hash_lookup (&(table)->root, (string), (create), \
208 /* Traverse a Alpha ELF linker hash table. */
210 #define alpha_elf_link_hash_traverse(table, func, info) \
211 (elf_link_hash_traverse \
213 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
216 /* Get the Alpha ELF linker hash table from a link_info structure. */
218 #define alpha_elf_hash_table(p) \
219 ((struct alpha_elf_link_hash_table *) ((p)->hash))
221 /* Get the object's symbols as our own entry type. */
223 #define alpha_elf_sym_hashes(abfd) \
224 ((struct alpha_elf_link_hash_entry **)elf_sym_hashes(abfd))
226 /* Should we do dynamic things to this symbol? */
228 #define alpha_elf_dynamic_symbol_p(h, info) \
229 (((info)->shared && !(info)->symbolic && (h)->dynindx != -1) \
230 || (((h)->elf_link_hash_flags \
231 & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)) \
232 == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)))
234 /* Create an entry in a Alpha ELF linker hash table. */
236 static struct bfd_hash_entry
*
237 elf64_alpha_link_hash_newfunc (entry
, table
, string
)
238 struct bfd_hash_entry
*entry
;
239 struct bfd_hash_table
*table
;
242 struct alpha_elf_link_hash_entry
*ret
=
243 (struct alpha_elf_link_hash_entry
*) entry
;
245 /* Allocate the structure if it has not already been allocated by a
247 if (ret
== (struct alpha_elf_link_hash_entry
*) NULL
)
248 ret
= ((struct alpha_elf_link_hash_entry
*)
249 bfd_hash_allocate (table
,
250 sizeof (struct alpha_elf_link_hash_entry
)));
251 if (ret
== (struct alpha_elf_link_hash_entry
*) NULL
)
252 return (struct bfd_hash_entry
*) ret
;
254 /* Call the allocation method of the superclass. */
255 ret
= ((struct alpha_elf_link_hash_entry
*)
256 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
258 if (ret
!= (struct alpha_elf_link_hash_entry
*) NULL
)
260 /* Set local fields. */
261 memset (&ret
->esym
, 0, sizeof (EXTR
));
262 /* We use -2 as a marker to indicate that the information has
263 not been set. -1 means there is no associated ifd. */
266 ret
->got_entries
= NULL
;
267 ret
->reloc_entries
= NULL
;
270 return (struct bfd_hash_entry
*) ret
;
273 /* Create a Alpha ELF linker hash table. */
275 static struct bfd_link_hash_table
*
276 elf64_alpha_bfd_link_hash_table_create (abfd
)
279 struct alpha_elf_link_hash_table
*ret
;
281 ret
= ((struct alpha_elf_link_hash_table
*)
282 bfd_zalloc (abfd
, sizeof (struct alpha_elf_link_hash_table
)));
283 if (ret
== (struct alpha_elf_link_hash_table
*) NULL
)
286 if (! _bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
287 elf64_alpha_link_hash_newfunc
))
289 bfd_release (abfd
, ret
);
293 return &ret
->root
.root
;
296 /* We have some private fields hanging off of the elf_tdata structure. */
298 struct alpha_elf_obj_tdata
300 struct elf_obj_tdata root
;
302 /* For every input file, these are the got entries for that object's
304 struct alpha_elf_got_entry
** local_got_entries
;
306 /* For every input file, this is the object that owns the got that
307 this input file uses. */
310 /* For every got, this is a linked list through the objects using this got */
311 bfd
*in_got_link_next
;
313 /* For every got, this is a link to the next got subsegment. */
316 /* For every got, this is the section. */
319 /* For every got, this is it's total number of *entries*. */
320 int total_got_entries
;
322 /* For every got, this is the sum of the number of *entries* required
323 to hold all of the member object's local got. */
324 int n_local_got_entries
;
327 #define alpha_elf_tdata(abfd) \
328 ((struct alpha_elf_obj_tdata *) (abfd)->tdata.any)
331 elf64_alpha_mkobject (abfd
)
334 abfd
->tdata
.any
= bfd_zalloc (abfd
, sizeof (struct alpha_elf_obj_tdata
));
335 if (abfd
->tdata
.any
== NULL
)
341 elf64_alpha_object_p (abfd
)
344 /* Allocate our special target data. */
345 struct alpha_elf_obj_tdata
*new_tdata
;
346 new_tdata
= bfd_zalloc (abfd
, sizeof (struct alpha_elf_obj_tdata
));
347 if (new_tdata
== NULL
)
349 new_tdata
->root
= *abfd
->tdata
.elf_obj_data
;
350 abfd
->tdata
.any
= new_tdata
;
352 /* Set the right machine number for an Alpha ELF file. */
353 return bfd_default_set_arch_mach (abfd
, bfd_arch_alpha
, 0);
356 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
357 from smaller values. Start with zero, widen, *then* decrement. */
358 #define MINUS_ONE (((bfd_vma)0) - 1)
360 static reloc_howto_type elf64_alpha_howto_table
[] =
362 HOWTO (R_ALPHA_NONE
, /* type */
364 0, /* size (0 = byte, 1 = short, 2 = long) */
366 true, /* pc_relative */
368 complain_overflow_dont
, /* complain_on_overflow */
369 elf64_alpha_reloc_nil
, /* special_function */
371 false, /* partial_inplace */
374 true), /* pcrel_offset */
376 /* A 32 bit reference to a symbol. */
377 HOWTO (R_ALPHA_REFLONG
, /* type */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
381 false, /* pc_relative */
383 complain_overflow_bitfield
, /* complain_on_overflow */
384 0, /* special_function */
385 "REFLONG", /* name */
386 false, /* partial_inplace */
387 0xffffffff, /* src_mask */
388 0xffffffff, /* dst_mask */
389 false), /* pcrel_offset */
391 /* A 64 bit reference to a symbol. */
392 HOWTO (R_ALPHA_REFQUAD
, /* type */
394 4, /* size (0 = byte, 1 = short, 2 = long) */
396 false, /* pc_relative */
398 complain_overflow_bitfield
, /* complain_on_overflow */
399 0, /* special_function */
400 "REFQUAD", /* name */
401 false, /* partial_inplace */
402 MINUS_ONE
, /* src_mask */
403 MINUS_ONE
, /* dst_mask */
404 false), /* pcrel_offset */
406 /* A 32 bit GP relative offset. This is just like REFLONG except
407 that when the value is used the value of the gp register will be
409 HOWTO (R_ALPHA_GPREL32
, /* type */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
413 false, /* pc_relative */
415 complain_overflow_bitfield
, /* complain_on_overflow */
416 0, /* special_function */
417 "GPREL32", /* name */
418 false, /* partial_inplace */
419 0xffffffff, /* src_mask */
420 0xffffffff, /* dst_mask */
421 false), /* pcrel_offset */
423 /* Used for an instruction that refers to memory off the GP register. */
424 HOWTO (R_ALPHA_LITERAL
, /* type */
426 2, /* size (0 = byte, 1 = short, 2 = long) */
428 false, /* pc_relative */
430 complain_overflow_signed
, /* complain_on_overflow */
431 0, /* special_function */
432 "ELF_LITERAL", /* name */
433 false, /* partial_inplace */
434 0xffff, /* src_mask */
435 0xffff, /* dst_mask */
436 false), /* pcrel_offset */
438 /* This reloc only appears immediately following an ELF_LITERAL reloc.
439 It identifies a use of the literal. The symbol index is special:
440 1 means the literal address is in the base register of a memory
441 format instruction; 2 means the literal address is in the byte
442 offset register of a byte-manipulation instruction; 3 means the
443 literal address is in the target register of a jsr instruction.
444 This does not actually do any relocation. */
445 HOWTO (R_ALPHA_LITUSE
, /* type */
447 2, /* size (0 = byte, 1 = short, 2 = long) */
449 false, /* pc_relative */
451 complain_overflow_dont
, /* complain_on_overflow */
452 elf64_alpha_reloc_nil
, /* special_function */
454 false, /* partial_inplace */
457 false), /* pcrel_offset */
459 /* Load the gp register. This is always used for a ldah instruction
460 which loads the upper 16 bits of the gp register. The symbol
461 index of the GPDISP instruction is an offset in bytes to the lda
462 instruction that loads the lower 16 bits. The value to use for
463 the relocation is the difference between the GP value and the
464 current location; the load will always be done against a register
465 holding the current address.
467 NOTE: Unlike ECOFF, partial in-place relocation is not done. If
468 any offset is present in the instructions, it is an offset from
469 the register to the ldah instruction. This lets us avoid any
470 stupid hackery like inventing a gp value to do partial relocation
471 against. Also unlike ECOFF, we do the whole relocation off of
472 the GPDISP rather than a GPDISP_HI16/GPDISP_LO16 pair. An odd,
473 space consuming bit, that, since all the information was present
474 in the GPDISP_HI16 reloc. */
475 HOWTO (R_ALPHA_GPDISP
, /* type */
477 2, /* size (0 = byte, 1 = short, 2 = long) */
479 false, /* pc_relative */
481 complain_overflow_dont
, /* complain_on_overflow */
482 elf64_alpha_reloc_gpdisp
, /* special_function */
484 false, /* partial_inplace */
485 0xffff, /* src_mask */
486 0xffff, /* dst_mask */
487 true), /* pcrel_offset */
489 /* A 21 bit branch. */
490 HOWTO (R_ALPHA_BRADDR
, /* type */
492 2, /* size (0 = byte, 1 = short, 2 = long) */
494 true, /* pc_relative */
496 complain_overflow_signed
, /* complain_on_overflow */
497 0, /* special_function */
499 false, /* partial_inplace */
500 0x1fffff, /* src_mask */
501 0x1fffff, /* dst_mask */
502 true), /* pcrel_offset */
504 /* A hint for a jump to a register. */
505 HOWTO (R_ALPHA_HINT
, /* type */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
509 true, /* pc_relative */
511 complain_overflow_dont
, /* complain_on_overflow */
512 0, /* special_function */
514 false, /* partial_inplace */
515 0x3fff, /* src_mask */
516 0x3fff, /* dst_mask */
517 true), /* pcrel_offset */
519 /* 16 bit PC relative offset. */
520 HOWTO (R_ALPHA_SREL16
, /* type */
522 1, /* size (0 = byte, 1 = short, 2 = long) */
524 true, /* pc_relative */
526 complain_overflow_signed
, /* complain_on_overflow */
527 0, /* special_function */
529 false, /* partial_inplace */
530 0xffff, /* src_mask */
531 0xffff, /* dst_mask */
532 false), /* pcrel_offset */
534 /* 32 bit PC relative offset. */
535 HOWTO (R_ALPHA_SREL32
, /* type */
537 2, /* size (0 = byte, 1 = short, 2 = long) */
539 true, /* pc_relative */
541 complain_overflow_signed
, /* complain_on_overflow */
542 0, /* special_function */
544 false, /* partial_inplace */
545 0xffffffff, /* src_mask */
546 0xffffffff, /* dst_mask */
547 false), /* pcrel_offset */
549 /* A 64 bit PC relative offset. */
550 HOWTO (R_ALPHA_SREL64
, /* type */
552 4, /* size (0 = byte, 1 = short, 2 = long) */
554 true, /* pc_relative */
556 complain_overflow_signed
, /* complain_on_overflow */
557 0, /* special_function */
559 false, /* partial_inplace */
560 MINUS_ONE
, /* src_mask */
561 MINUS_ONE
, /* dst_mask */
562 false), /* pcrel_offset */
564 /* Push a value on the reloc evaluation stack. */
565 /* Not implemented -- it's dumb. */
566 HOWTO (R_ALPHA_OP_PUSH
, /* type */
568 0, /* size (0 = byte, 1 = short, 2 = long) */
570 false, /* pc_relative */
572 complain_overflow_dont
, /* complain_on_overflow */
573 elf64_alpha_reloc_bad
, /* special_function */
574 "OP_PUSH", /* name */
575 false, /* partial_inplace */
578 false), /* pcrel_offset */
580 /* Store the value from the stack at the given address. Store it in
581 a bitfield of size r_size starting at bit position r_offset. */
582 /* Not implemented -- it's dumb. */
583 HOWTO (R_ALPHA_OP_STORE
, /* type */
585 4, /* size (0 = byte, 1 = short, 2 = long) */
587 false, /* pc_relative */
589 complain_overflow_dont
, /* complain_on_overflow */
590 elf64_alpha_reloc_bad
, /* special_function */
591 "OP_STORE", /* name */
592 false, /* partial_inplace */
594 MINUS_ONE
, /* dst_mask */
595 false), /* pcrel_offset */
597 /* Subtract the reloc address from the value on the top of the
599 /* Not implemented -- it's dumb. */
600 HOWTO (R_ALPHA_OP_PSUB
, /* type */
602 0, /* size (0 = byte, 1 = short, 2 = long) */
604 false, /* pc_relative */
606 complain_overflow_dont
, /* complain_on_overflow */
607 elf64_alpha_reloc_bad
, /* special_function */
608 "OP_PSUB", /* name */
609 false, /* partial_inplace */
612 false), /* pcrel_offset */
614 /* Shift the value on the top of the relocation stack right by the
616 /* Not implemented -- it's dumb. */
617 HOWTO (R_ALPHA_OP_PRSHIFT
, /* type */
619 0, /* size (0 = byte, 1 = short, 2 = long) */
621 false, /* pc_relative */
623 complain_overflow_dont
, /* complain_on_overflow */
624 elf64_alpha_reloc_bad
, /* special_function */
625 "OP_PRSHIFT", /* name */
626 false, /* partial_inplace */
629 false), /* pcrel_offset */
631 /* Change the value of GP used by +r_addend until the next GPVALUE or the
632 end of the input bfd. */
633 /* Not implemented -- it's dumb. */
634 HOWTO (R_ALPHA_GPVALUE
,
636 0, /* size (0 = byte, 1 = short, 2 = long) */
638 false, /* pc_relative */
640 complain_overflow_dont
, /* complain_on_overflow */
641 elf64_alpha_reloc_bad
, /* special_function */
642 "GPVALUE", /* name */
643 false, /* partial_inplace */
646 false), /* pcrel_offset */
648 /* The high 16 bits of the displacement from GP to the target. */
649 HOWTO (R_ALPHA_GPRELHIGH
,
651 2, /* size (0 = byte, 1 = short, 2 = long) */
653 false, /* pc_relative */
655 complain_overflow_signed
, /* complain_on_overflow */
656 elf64_alpha_reloc_bad
, /* special_function */
657 "GPRELHIGH", /* name */
658 false, /* partial_inplace */
659 0xffff, /* src_mask */
660 0xffff, /* dst_mask */
661 false), /* pcrel_offset */
663 /* The low 16 bits of the displacement from GP to the target. */
664 HOWTO (R_ALPHA_GPRELLOW
,
666 2, /* size (0 = byte, 1 = short, 2 = long) */
668 false, /* pc_relative */
670 complain_overflow_dont
, /* complain_on_overflow */
671 elf64_alpha_reloc_bad
, /* special_function */
672 "GPRELLOW", /* name */
673 false, /* partial_inplace */
674 0xffff, /* src_mask */
675 0xffff, /* dst_mask */
676 false), /* pcrel_offset */
678 /* A 16-bit displacement from the GP to the target. */
679 /* XXX: Not implemented. */
680 HOWTO (R_ALPHA_IMMED_GP_16
,
682 2, /* size (0 = byte, 1 = short, 2 = long) */
684 false, /* pc_relative */
686 complain_overflow_signed
, /* complain_on_overflow */
687 0, /* special_function */
688 "IMMED_GP_16", /* name */
689 false, /* partial_inplace */
690 0xffff, /* src_mask */
691 0xffff, /* dst_mask */
692 false), /* pcrel_offset */
694 /* The high bits of a 32-bit displacement from the GP to the target; the
695 low bits are supplied in the subsequent R_ALPHA_IMMED_LO32 relocs. */
696 /* XXX: Not implemented. */
697 HOWTO (R_ALPHA_IMMED_GP_HI32
,
699 0, /* size (0 = byte, 1 = short, 2 = long) */
701 false, /* pc_relative */
703 complain_overflow_dont
, /* complain_on_overflow */
704 elf64_alpha_reloc_bad
, /* special_function */
705 "IMMED_GP_HI32", /* name */
706 false, /* partial_inplace */
709 false), /* pcrel_offset */
711 /* The high bits of a 32-bit displacement to the starting address of the
712 current section (the relocation target is ignored); the low bits are
713 supplied in the subsequent R_ALPHA_IMMED_LO32 relocs. */
714 /* XXX: Not implemented. */
715 HOWTO (R_ALPHA_IMMED_SCN_HI32
,
717 0, /* size (0 = byte, 1 = short, 2 = long) */
719 false, /* pc_relative */
721 complain_overflow_dont
, /* complain_on_overflow */
722 elf64_alpha_reloc_bad
, /* special_function */
723 "IMMED_SCN_HI32", /* name */
724 false, /* partial_inplace */
727 false), /* pcrel_offset */
729 /* The high bits of a 32-bit displacement from the previous br, bsr, jsr
730 or jmp insn (as tagged by a BRADDR or HINT reloc) to the target; the
731 low bits are supplied by subsequent R_ALPHA_IMMED_LO32 relocs. */
732 /* XXX: Not implemented. */
733 HOWTO (R_ALPHA_IMMED_BR_HI32
,
735 0, /* size (0 = byte, 1 = short, 2 = long) */
737 false, /* pc_relative */
739 complain_overflow_dont
, /* complain_on_overflow */
740 elf64_alpha_reloc_bad
, /* special_function */
741 "IMMED_BR_HI32", /* name */
742 false, /* partial_inplace */
745 false), /* pcrel_offset */
747 /* The low 16 bits of a displacement calculated in a previous HI32 reloc. */
748 /* XXX: Not implemented. */
749 HOWTO (R_ALPHA_IMMED_LO32
,
751 0, /* size (0 = byte, 1 = short, 2 = long) */
753 false, /* pc_relative */
755 complain_overflow_dont
, /* complain_on_overflow */
756 elf64_alpha_reloc_bad
, /* special_function */
757 "IMMED_LO32", /* name */
758 false, /* partial_inplace */
761 false), /* pcrel_offset */
763 /* Misc ELF relocations. */
765 /* A dynamic relocation to copy the target into our .dynbss section. */
766 /* Not generated, as all Alpha objects use PIC, so it is not needed. It
767 is present because every other ELF has one, but should not be used
768 because .dynbss is an ugly thing. */
775 complain_overflow_dont
,
776 bfd_elf_generic_reloc
,
783 /* A dynamic relocation for a .got entry. */
784 HOWTO (R_ALPHA_GLOB_DAT
,
790 complain_overflow_dont
,
791 bfd_elf_generic_reloc
,
798 /* A dynamic relocation for a .plt entry. */
799 HOWTO (R_ALPHA_JMP_SLOT
,
805 complain_overflow_dont
,
806 bfd_elf_generic_reloc
,
813 /* A dynamic relocation to add the base of the DSO to a 64-bit field. */
814 HOWTO (R_ALPHA_RELATIVE
,
820 complain_overflow_dont
,
821 bfd_elf_generic_reloc
,
829 /* A relocation function which doesn't do anything. */
831 static bfd_reloc_status_type
832 elf64_alpha_reloc_nil (abfd
, reloc
, sym
, data
, sec
, output_bfd
, error_message
)
839 char **error_message
;
842 reloc
->address
+= sec
->output_offset
;
846 /* A relocation function used for an unsupported reloc. */
848 static bfd_reloc_status_type
849 elf64_alpha_reloc_bad (abfd
, reloc
, sym
, data
, sec
, output_bfd
, error_message
)
856 char **error_message
;
859 reloc
->address
+= sec
->output_offset
;
860 return bfd_reloc_notsupported
;
863 /* Do the work of the GPDISP relocation. */
865 static bfd_reloc_status_type
866 elf64_alpha_do_reloc_gpdisp (abfd
, gpdisp
, p_ldah
, p_lda
)
872 bfd_reloc_status_type ret
= bfd_reloc_ok
;
874 unsigned long i_ldah
, i_lda
;
876 i_ldah
= bfd_get_32 (abfd
, p_ldah
);
877 i_lda
= bfd_get_32 (abfd
, p_lda
);
879 /* Complain if the instructions are not correct. */
880 if (((i_ldah
>> 26) & 0x3f) != 0x09
881 || ((i_lda
>> 26) & 0x3f) != 0x08)
882 ret
= bfd_reloc_dangerous
;
884 /* Extract the user-supplied offset, mirroring the sign extensions
885 that the instructions perform. */
886 addend
= ((i_ldah
& 0xffff) << 16) | (i_lda
& 0xffff);
887 addend
= (addend
^ 0x80008000) - 0x80008000;
891 if ((bfd_signed_vma
) gpdisp
< -(bfd_signed_vma
) 0x80000000
892 || (bfd_signed_vma
) gpdisp
>= (bfd_signed_vma
) 0x7fff8000)
893 ret
= bfd_reloc_overflow
;
895 /* compensate for the sign extension again. */
896 i_ldah
= ((i_ldah
& 0xffff0000)
897 | (((gpdisp
>> 16) + ((gpdisp
>> 15) & 1)) & 0xffff));
898 i_lda
= (i_lda
& 0xffff0000) | (gpdisp
& 0xffff);
900 bfd_put_32 (abfd
, i_ldah
, p_ldah
);
901 bfd_put_32 (abfd
, i_lda
, p_lda
);
906 /* The special function for the GPDISP reloc. */
908 static bfd_reloc_status_type
909 elf64_alpha_reloc_gpdisp (abfd
, reloc_entry
, sym
, data
, input_section
,
912 arelent
*reloc_entry
;
915 asection
*input_section
;
919 bfd_reloc_status_type ret
;
920 bfd_vma gp
, relocation
;
921 bfd_byte
*p_ldah
, *p_lda
;
923 /* Don't do anything if we're not doing a final link. */
926 reloc_entry
->address
+= input_section
->output_offset
;
930 if (reloc_entry
->address
> input_section
->_cooked_size
||
931 reloc_entry
->address
+ reloc_entry
->addend
> input_section
->_cooked_size
)
932 return bfd_reloc_outofrange
;
934 /* The gp used in the portion of the output object to which this
935 input object belongs is cached on the input bfd. */
936 gp
= _bfd_get_gp_value (abfd
);
938 relocation
= (input_section
->output_section
->vma
939 + input_section
->output_offset
940 + reloc_entry
->address
);
942 p_ldah
= (bfd_byte
*) data
+ reloc_entry
->address
;
943 p_lda
= p_ldah
+ reloc_entry
->addend
;
945 ret
= elf64_alpha_do_reloc_gpdisp (abfd
, gp
- relocation
, p_ldah
, p_lda
);
947 /* Complain if the instructions are not correct. */
948 if (ret
== bfd_reloc_dangerous
)
949 *err_msg
= _("GPDISP relocation did not find ldah and lda instructions");
954 /* A mapping from BFD reloc types to Alpha ELF reloc types. */
958 bfd_reloc_code_real_type bfd_reloc_val
;
962 static const struct elf_reloc_map elf64_alpha_reloc_map
[] =
964 {BFD_RELOC_NONE
, R_ALPHA_NONE
},
965 {BFD_RELOC_32
, R_ALPHA_REFLONG
},
966 {BFD_RELOC_64
, R_ALPHA_REFQUAD
},
967 {BFD_RELOC_CTOR
, R_ALPHA_REFQUAD
},
968 {BFD_RELOC_GPREL32
, R_ALPHA_GPREL32
},
969 {BFD_RELOC_ALPHA_ELF_LITERAL
, R_ALPHA_LITERAL
},
970 {BFD_RELOC_ALPHA_LITUSE
, R_ALPHA_LITUSE
},
971 {BFD_RELOC_ALPHA_GPDISP
, R_ALPHA_GPDISP
},
972 {BFD_RELOC_23_PCREL_S2
, R_ALPHA_BRADDR
},
973 {BFD_RELOC_ALPHA_HINT
, R_ALPHA_HINT
},
974 {BFD_RELOC_16_PCREL
, R_ALPHA_SREL16
},
975 {BFD_RELOC_32_PCREL
, R_ALPHA_SREL32
},
976 {BFD_RELOC_64_PCREL
, R_ALPHA_SREL64
},
979 /* Given a BFD reloc type, return a HOWTO structure. */
981 static reloc_howto_type
*
982 elf64_alpha_bfd_reloc_type_lookup (abfd
, code
)
984 bfd_reloc_code_real_type code
;
986 const struct elf_reloc_map
*i
, *e
;
987 i
= e
= elf64_alpha_reloc_map
;
988 e
+= sizeof (elf64_alpha_reloc_map
) / sizeof (struct elf_reloc_map
);
991 if (i
->bfd_reloc_val
== code
)
992 return &elf64_alpha_howto_table
[i
->elf_reloc_val
];
997 /* Given an Alpha ELF reloc type, fill in an arelent structure. */
1000 elf64_alpha_info_to_howto (abfd
, cache_ptr
, dst
)
1003 Elf64_Internal_Rela
*dst
;
1007 r_type
= ELF64_R_TYPE(dst
->r_info
);
1008 BFD_ASSERT (r_type
< (unsigned int) R_ALPHA_max
);
1009 cache_ptr
->howto
= &elf64_alpha_howto_table
[r_type
];
1012 /* These functions do relaxation for Alpha ELF.
1014 Currently I'm only handling what I can do with existing compiler
1015 and assembler support, which means no instructions are removed,
1016 though some may be nopped. At this time GCC does not emit enough
1017 information to do all of the relaxing that is possible. It will
1018 take some not small amount of work for that to happen.
1020 There are a couple of interesting papers that I once read on this
1021 subject, that I cannot find references to at the moment, that
1022 related to Alpha in particular. They are by David Wall, then of
1026 #define OP_LDAH 0x09
1027 #define INSN_JSR 0x68004000
1028 #define INSN_JSR_MASK 0xfc00c000
1032 #define INSN_UNOP 0x2fe00000
1034 struct alpha_relax_info
1039 Elf_Internal_Rela
*relocs
, *relend
;
1040 struct bfd_link_info
*link_info
;
1041 boolean changed_contents
;
1042 boolean changed_relocs
;
1045 struct alpha_elf_link_hash_entry
*h
;
1046 struct alpha_elf_got_entry
*gotent
;
1049 static Elf_Internal_Rela
* elf64_alpha_relax_with_lituse
1050 PARAMS((struct alpha_relax_info
*info
, bfd_vma symval
,
1051 Elf_Internal_Rela
*irel
, Elf_Internal_Rela
*irelend
));
1053 static boolean elf64_alpha_relax_without_lituse
1054 PARAMS((struct alpha_relax_info
*info
, bfd_vma symval
,
1055 Elf_Internal_Rela
*irel
));
1057 static bfd_vma elf64_alpha_relax_opt_call
1058 PARAMS((struct alpha_relax_info
*info
, bfd_vma symval
));
1060 static boolean elf64_alpha_relax_section
1061 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
1064 static Elf_Internal_Rela
*
1065 elf64_alpha_find_reloc_at_ofs (rel
, relend
, offset
, type
)
1066 Elf_Internal_Rela
*rel
, *relend
;
1070 while (rel
< relend
)
1072 if (rel
->r_offset
== offset
&& ELF64_R_TYPE (rel
->r_info
) == type
)
1079 static Elf_Internal_Rela
*
1080 elf64_alpha_relax_with_lituse (info
, symval
, irel
, irelend
)
1081 struct alpha_relax_info
*info
;
1083 Elf_Internal_Rela
*irel
, *irelend
;
1085 Elf_Internal_Rela
*urel
;
1086 int flags
, count
, i
;
1087 bfd_signed_vma disp
;
1090 boolean lit_reused
= false;
1091 boolean all_optimized
= true;
1092 unsigned int lit_insn
;
1094 lit_insn
= bfd_get_32 (info
->abfd
, info
->contents
+ irel
->r_offset
);
1095 if (lit_insn
>> 26 != OP_LDQ
)
1097 ((*_bfd_error_handler
)
1098 ("%s: %s+0x%lx: warning: LITERAL relocation against unexpected insn",
1099 bfd_get_filename (info
->abfd
), info
->sec
->name
,
1100 (unsigned long)irel
->r_offset
));
1104 /* Summarize how this particular LITERAL is used. */
1105 for (urel
= irel
+1, flags
= count
= 0; urel
< irelend
; ++urel
, ++count
)
1107 if (ELF64_R_TYPE (urel
->r_info
) != R_ALPHA_LITUSE
)
1109 if (urel
->r_addend
>= 0 && urel
->r_addend
<= 3)
1110 flags
|= 1 << urel
->r_addend
;
1113 /* A little preparation for the loop... */
1114 disp
= symval
- info
->gp
;
1115 fits16
= (disp
>= -(bfd_signed_vma
)0x8000 && disp
< 0x8000);
1116 fits32
= (disp
>= -(bfd_signed_vma
)0x80000000 && disp
< 0x7fff8000);
1118 for (urel
= irel
+1, i
= 0; i
< count
; ++i
, ++urel
)
1121 insn
= bfd_get_32 (info
->abfd
, info
->contents
+ urel
->r_offset
);
1123 switch (urel
->r_addend
)
1125 default: /* 0 = ADDRESS FORMAT */
1126 /* This type is really just a placeholder to note that all
1127 uses cannot be optimized, but to still allow some. */
1128 all_optimized
= false;
1131 case 1: /* MEM FORMAT */
1132 /* We can always optimize 16-bit displacements. */
1135 /* FIXME: sanity check the insn for mem format with
1138 /* Take the op code and dest from this insn, take the base
1139 register from the literal insn. Leave the offset alone. */
1140 insn
= (insn
& 0xffe00000) | (lit_insn
& 0x001f0000);
1141 urel
->r_info
= ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
1143 urel
->r_addend
= irel
->r_addend
;
1144 info
->changed_relocs
= true;
1146 bfd_put_32 (info
->abfd
, insn
, info
->contents
+ urel
->r_offset
);
1147 info
->changed_contents
= true;
1150 /* If all mem+byte, we can optimize 32-bit mem displacements. */
1151 else if (fits32
&& !(flags
& ~6))
1153 /* FIXME: sanity check that lit insn Ra is mem insn Rb, and
1154 that mem_insn disp is zero. */
1156 irel
->r_info
= ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
1158 lit_insn
= (OP_LDAH
<< 26) | (lit_insn
& 0x03ff0000);
1159 bfd_put_32 (info
->abfd
, lit_insn
,
1160 info
->contents
+ irel
->r_offset
);
1162 info
->changed_contents
= true;
1164 urel
->r_info
= ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
1166 urel
->r_addend
= irel
->r_addend
;
1167 info
->changed_relocs
= true;
1170 all_optimized
= false;
1173 case 2: /* BYTE OFFSET FORMAT */
1174 /* We can always optimize byte instructions. */
1176 /* FIXME: sanity check the insn for byte op. Check that the
1177 literal dest reg is indeed Rb in the byte insn. */
1179 insn
= (insn
& ~0x001ff000) | ((symval
& 7) << 13) | 0x1000;
1181 urel
->r_info
= ELF64_R_INFO (0, R_ALPHA_NONE
);
1183 info
->changed_relocs
= true;
1185 bfd_put_32 (info
->abfd
, insn
, info
->contents
+ urel
->r_offset
);
1186 info
->changed_contents
= true;
1189 case 3: /* CALL FORMAT */
1191 /* If not zero, place to jump without needing pv. */
1192 bfd_vma optdest
= elf64_alpha_relax_opt_call (info
, symval
);
1193 bfd_vma org
= (info
->sec
->output_section
->vma
1194 + info
->sec
->output_offset
1195 + urel
->r_offset
+ 4);
1196 bfd_signed_vma odisp
;
1198 odisp
= (optdest
? optdest
: symval
) - org
;
1199 if (odisp
>= -0x400000 && odisp
< 0x400000)
1201 Elf_Internal_Rela
*xrel
;
1203 /* Preserve branch prediction call stack when possible. */
1204 if ((insn
& INSN_JSR_MASK
) == INSN_JSR
)
1205 insn
= (OP_BSR
<< 26) | (insn
& 0x03e00000);
1207 insn
= (OP_BR
<< 26) | (insn
& 0x03e00000);
1209 urel
->r_info
= ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
1211 urel
->r_addend
= irel
->r_addend
;
1212 info
->changed_relocs
= true;
1214 /* Kill any HINT reloc that might exist for this insn. */
1215 xrel
= (elf64_alpha_find_reloc_at_ofs
1216 (info
->relocs
, info
->relend
, urel
->r_offset
,
1219 xrel
->r_info
= ELF64_R_INFO (0, R_ALPHA_NONE
);
1222 urel
->r_addend
+= optdest
- symval
;
1224 all_optimized
= false;
1226 bfd_put_32 (info
->abfd
, insn
, info
->contents
+ urel
->r_offset
);
1227 info
->changed_contents
= true;
1230 all_optimized
= false;
1232 /* ??? If target gp == current gp we can eliminate the gp reload.
1233 This does depend on every place a gp could be reloaded will
1234 be, which currently happens for all code produced by gcc, but
1235 not necessarily by hand-coded assembly, or if sibling calls
1238 Perhaps conditionalize this on a flag being set in the target
1239 object file's header, and have gcc set it? */
1245 /* If all cases were optimized, we can reduce the use count on this
1246 got entry by one, possibly eliminating it. */
1249 info
->gotent
->use_count
-= 1;
1250 alpha_elf_tdata (info
->gotent
->gotobj
)->total_got_entries
-= 1;
1252 alpha_elf_tdata (info
->gotent
->gotobj
)->n_local_got_entries
-= 1;
1254 /* If the literal instruction is no longer needed (it may have been
1255 reused. We can eliminate it.
1256 ??? For now, I don't want to deal with compacting the section,
1257 so just nop it out. */
1260 irel
->r_info
= ELF64_R_INFO (0, R_ALPHA_NONE
);
1261 info
->changed_relocs
= true;
1263 bfd_put_32 (info
->abfd
, INSN_UNOP
, info
->contents
+ irel
->r_offset
);
1264 info
->changed_contents
= true;
1268 return irel
+ count
;
1272 elf64_alpha_relax_opt_call (info
, symval
)
1273 struct alpha_relax_info
*info
;
1276 /* If the function has the same gp, and we can identify that the
1277 function does not use its function pointer, we can eliminate the
1280 ??? The .prologue [0,1] information is what we need. How do we
1281 get it out of the mdebug uglyness? What shall we do when we drop
1282 that crap for dwarf2?
1284 For now, only consider the case in which there is an identifyable
1285 GP load in the first two words. We can then skip over that load. */
1291 elf64_alpha_relax_without_lituse (info
, symval
, irel
)
1292 struct alpha_relax_info
*info
;
1294 Elf_Internal_Rela
*irel
;
1297 bfd_signed_vma disp
;
1299 /* Get the instruction. */
1300 insn
= bfd_get_32 (info
->abfd
, info
->contents
+ irel
->r_offset
);
1302 if (insn
>> 26 != OP_LDQ
)
1304 ((*_bfd_error_handler
)
1305 ("%s: %s+0x%lx: warning: LITERAL relocation against unexpected insn",
1306 bfd_get_filename (info
->abfd
), info
->sec
->name
,
1307 (unsigned long) irel
->r_offset
));
1311 /* So we aren't told much. Do what we can with the address load and
1312 fake the rest. All of the optimizations here require that the
1313 offset from the GP fit in 16 bits. */
1315 disp
= symval
- info
->gp
;
1316 if (disp
< -0x8000 || disp
>= 0x8000)
1319 /* On the LITERAL instruction itself, consider exchanging
1320 `ldq R,X(gp)' for `lda R,Y(gp)'. */
1322 insn
= (OP_LDA
<< 26) | (insn
& 0x03ff0000);
1323 bfd_put_32 (info
->abfd
, insn
, info
->contents
+ irel
->r_offset
);
1324 info
->changed_contents
= true;
1326 irel
->r_info
= ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
), R_ALPHA_GPRELLOW
);
1327 info
->changed_relocs
= true;
1329 /* Reduce the use count on this got entry by one, possibly
1331 info
->gotent
->use_count
-= 1;
1332 alpha_elf_tdata (info
->gotent
->gotobj
)->total_got_entries
-= 1;
1334 alpha_elf_tdata (info
->gotent
->gotobj
)->n_local_got_entries
-= 1;
1336 /* ??? Search forward through this basic block looking for insns
1337 that use the target register. Stop after an insn modifying the
1338 register is seen, or after a branch or call.
1340 Any such memory load insn may be substituted by a load directly
1341 off the GP. This allows the memory load insn to be issued before
1342 the calculated GP register would otherwise be ready.
1344 Any such jsr insn can be replaced by a bsr if it is in range.
1346 This would mean that we'd have to _add_ relocations, the pain of
1347 which gives one pause. */
1353 elf64_alpha_relax_section (abfd
, sec
, link_info
, again
)
1356 struct bfd_link_info
*link_info
;
1359 Elf_Internal_Shdr
*symtab_hdr
;
1360 Elf_Internal_Rela
*internal_relocs
;
1361 Elf_Internal_Rela
*free_relocs
= NULL
;
1362 Elf_Internal_Rela
*irel
, *irelend
;
1363 bfd_byte
*free_contents
= NULL
;
1364 Elf64_External_Sym
*extsyms
= NULL
;
1365 Elf64_External_Sym
*free_extsyms
= NULL
;
1366 struct alpha_elf_got_entry
**local_got_entries
;
1367 struct alpha_relax_info info
;
1369 /* We are not currently changing any sizes, so only one pass. */
1372 if (link_info
->relocateable
1373 || (sec
->flags
& SEC_RELOC
) == 0
1374 || sec
->reloc_count
== 0)
1377 /* If this is the first time we have been called for this section,
1378 initialize the cooked size. */
1379 if (sec
->_cooked_size
== 0)
1380 sec
->_cooked_size
= sec
->_raw_size
;
1382 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1383 local_got_entries
= alpha_elf_tdata(abfd
)->local_got_entries
;
1385 /* Load the relocations for this section. */
1386 internal_relocs
= (_bfd_elf64_link_read_relocs
1387 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
1388 link_info
->keep_memory
));
1389 if (internal_relocs
== NULL
)
1391 if (! link_info
->keep_memory
)
1392 free_relocs
= internal_relocs
;
1394 memset(&info
, 0, sizeof(info
));
1397 info
.link_info
= link_info
;
1398 info
.relocs
= internal_relocs
;
1399 info
.relend
= irelend
= internal_relocs
+ sec
->reloc_count
;
1401 /* Find the GP for this object. */
1402 info
.gotobj
= alpha_elf_tdata (abfd
)->gotobj
;
1405 asection
*sgot
= alpha_elf_tdata (info
.gotobj
)->got
;
1406 info
.gp
= _bfd_get_gp_value (info
.gotobj
);
1409 info
.gp
= (sgot
->output_section
->vma
1410 + sgot
->output_offset
1412 _bfd_set_gp_value (info
.gotobj
, info
.gp
);
1416 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1421 if (ELF64_R_TYPE (irel
->r_info
) != (int) R_ALPHA_LITERAL
)
1424 /* Get the section contents. */
1425 if (info
.contents
== NULL
)
1427 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
1428 info
.contents
= elf_section_data (sec
)->this_hdr
.contents
;
1431 info
.contents
= (bfd_byte
*) bfd_malloc (sec
->_raw_size
);
1432 if (info
.contents
== NULL
)
1434 free_contents
= info
.contents
;
1436 if (! bfd_get_section_contents (abfd
, sec
, info
.contents
,
1437 (file_ptr
) 0, sec
->_raw_size
))
1442 /* Read this BFD's symbols if we haven't done so already. */
1443 if (extsyms
== NULL
)
1445 if (symtab_hdr
->contents
!= NULL
)
1446 extsyms
= (Elf64_External_Sym
*) symtab_hdr
->contents
;
1449 extsyms
= ((Elf64_External_Sym
*)
1450 bfd_malloc (symtab_hdr
->sh_size
));
1451 if (extsyms
== NULL
)
1453 free_extsyms
= extsyms
;
1454 if (bfd_seek (abfd
, symtab_hdr
->sh_offset
, SEEK_SET
) != 0
1455 || (bfd_read (extsyms
, 1, symtab_hdr
->sh_size
, abfd
)
1456 != symtab_hdr
->sh_size
))
1461 /* Get the value of the symbol referred to by the reloc. */
1462 if (ELF64_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
1464 Elf_Internal_Sym isym
;
1467 /* A local symbol. */
1468 bfd_elf64_swap_symbol_in (abfd
,
1469 extsyms
+ ELF64_R_SYM (irel
->r_info
),
1471 if (isym
.st_shndx
== SHN_UNDEF
)
1472 lsec
= bfd_und_section_ptr
;
1473 else if (isym
.st_shndx
> 0 && isym
.st_shndx
< SHN_LORESERVE
)
1474 lsec
= bfd_section_from_elf_index (abfd
, isym
.st_shndx
);
1475 else if (isym
.st_shndx
== SHN_ABS
)
1476 lsec
= bfd_abs_section_ptr
;
1477 else if (isym
.st_shndx
== SHN_COMMON
)
1478 lsec
= bfd_com_section_ptr
;
1480 continue; /* who knows. */
1483 info
.gotent
= local_got_entries
[ELF64_R_SYM(irel
->r_info
)];
1484 symval
= (isym
.st_value
1485 + lsec
->output_section
->vma
1486 + lsec
->output_offset
);
1491 struct alpha_elf_link_hash_entry
*h
;
1492 struct alpha_elf_got_entry
*gotent
;
1494 indx
= ELF64_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
1495 h
= alpha_elf_sym_hashes (abfd
)[indx
];
1496 BFD_ASSERT (h
!= NULL
);
1498 /* We can't do anthing with undefined or dynamic symbols. */
1499 if (h
->root
.root
.type
== bfd_link_hash_undefined
1500 || h
->root
.root
.type
== bfd_link_hash_undefweak
1501 || alpha_elf_dynamic_symbol_p (&h
->root
, link_info
))
1504 /* Search for the got entry to be used by this relocation. */
1505 for (gotent
= h
->got_entries
; gotent
; gotent
= gotent
->next
)
1506 if (gotent
->gotobj
== info
.gotobj
1507 && gotent
->addend
== irel
->r_addend
)
1511 info
.gotent
= gotent
;
1512 symval
= (h
->root
.root
.u
.def
.value
1513 + h
->root
.root
.u
.def
.section
->output_section
->vma
1514 + h
->root
.root
.u
.def
.section
->output_offset
);
1516 symval
+= irel
->r_addend
;
1518 BFD_ASSERT(info
.gotent
!= NULL
);
1520 /* If there exist LITUSE relocations immediately following, this
1521 opens up all sorts of interesting optimizations, because we
1522 now know every location that this address load is used. */
1524 if (irel
+1 < irelend
&& ELF64_R_TYPE (irel
[1].r_info
) == R_ALPHA_LITUSE
)
1526 irel
= elf64_alpha_relax_with_lituse (&info
, symval
, irel
, irelend
);
1532 if (!elf64_alpha_relax_without_lituse (&info
, symval
, irel
))
1537 if (!elf64_alpha_size_got_sections (abfd
, link_info
))
1540 if (info
.changed_relocs
)
1542 elf_section_data (sec
)->relocs
= internal_relocs
;
1544 else if (free_relocs
!= NULL
)
1549 if (info
.changed_contents
)
1551 elf_section_data (sec
)->this_hdr
.contents
= info
.contents
;
1553 else if (free_contents
!= NULL
)
1555 if (! link_info
->keep_memory
)
1556 free (free_contents
);
1559 /* Cache the section contents for elf_link_input_bfd. */
1560 elf_section_data (sec
)->this_hdr
.contents
= info
.contents
;
1564 if (free_extsyms
!= NULL
)
1566 if (! link_info
->keep_memory
)
1567 free (free_extsyms
);
1570 /* Cache the symbols for elf_link_input_bfd. */
1571 symtab_hdr
->contents
= extsyms
;
1578 if (free_relocs
!= NULL
)
1580 if (free_contents
!= NULL
)
1581 free (free_contents
);
1582 if (free_extsyms
!= NULL
)
1583 free (free_extsyms
);
1588 #define PLT_HEADER_SIZE 32
1589 #define PLT_HEADER_WORD1 0xc3600000 /* br $27,.+4 */
1590 #define PLT_HEADER_WORD2 0xa77b000c /* ldq $27,12($27) */
1591 #define PLT_HEADER_WORD3 0x47ff041f /* nop */
1592 #define PLT_HEADER_WORD4 0x6b7b0000 /* jmp $27,($27) */
1594 #define PLT_ENTRY_SIZE 12
1595 #define PLT_ENTRY_WORD1 0xc3800000 /* br $28, plt0 */
1596 #define PLT_ENTRY_WORD2 0
1597 #define PLT_ENTRY_WORD3 0
1599 #define MAX_GOT_ENTRIES (64*1024 / 8)
1601 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so"
1603 /* Handle an Alpha specific section when reading an object file. This
1604 is called when elfcode.h finds a section with an unknown type.
1605 FIXME: We need to handle the SHF_ALPHA_GPREL flag, but I'm not sure
1609 elf64_alpha_section_from_shdr (abfd
, hdr
, name
)
1611 Elf64_Internal_Shdr
*hdr
;
1616 /* There ought to be a place to keep ELF backend specific flags, but
1617 at the moment there isn't one. We just keep track of the
1618 sections by their name, instead. Fortunately, the ABI gives
1619 suggested names for all the MIPS specific sections, so we will
1620 probably get away with this. */
1621 switch (hdr
->sh_type
)
1623 case SHT_ALPHA_DEBUG
:
1624 if (strcmp (name
, ".mdebug") != 0)
1627 #ifdef ERIC_neverdef
1628 case SHT_ALPHA_REGINFO
:
1629 if (strcmp (name
, ".reginfo") != 0
1630 || hdr
->sh_size
!= sizeof (Elf64_External_RegInfo
))
1638 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
1640 newsect
= hdr
->bfd_section
;
1642 if (hdr
->sh_type
== SHT_ALPHA_DEBUG
)
1644 if (! bfd_set_section_flags (abfd
, newsect
,
1645 (bfd_get_section_flags (abfd
, newsect
)
1650 #ifdef ERIC_neverdef
1651 /* For a .reginfo section, set the gp value in the tdata information
1652 from the contents of this section. We need the gp value while
1653 processing relocs, so we just get it now. */
1654 if (hdr
->sh_type
== SHT_ALPHA_REGINFO
)
1656 Elf64_External_RegInfo ext
;
1659 if (! bfd_get_section_contents (abfd
, newsect
, (PTR
) &ext
,
1660 (file_ptr
) 0, sizeof ext
))
1662 bfd_alpha_elf64_swap_reginfo_in (abfd
, &ext
, &s
);
1663 elf_gp (abfd
) = s
.ri_gp_value
;
1670 /* Set the correct type for an Alpha ELF section. We do this by the
1671 section name, which is a hack, but ought to work. */
1674 elf64_alpha_fake_sections (abfd
, hdr
, sec
)
1676 Elf64_Internal_Shdr
*hdr
;
1679 register const char *name
;
1681 name
= bfd_get_section_name (abfd
, sec
);
1683 if (strcmp (name
, ".mdebug") == 0)
1685 hdr
->sh_type
= SHT_ALPHA_DEBUG
;
1686 /* In a shared object on Irix 5.3, the .mdebug section has an
1687 entsize of 0. FIXME: Does this matter? */
1688 if ((abfd
->flags
& DYNAMIC
) != 0 )
1689 hdr
->sh_entsize
= 0;
1691 hdr
->sh_entsize
= 1;
1693 #ifdef ERIC_neverdef
1694 else if (strcmp (name
, ".reginfo") == 0)
1696 hdr
->sh_type
= SHT_ALPHA_REGINFO
;
1697 /* In a shared object on Irix 5.3, the .reginfo section has an
1698 entsize of 0x18. FIXME: Does this matter? */
1699 if ((abfd
->flags
& DYNAMIC
) != 0)
1700 hdr
->sh_entsize
= sizeof (Elf64_External_RegInfo
);
1702 hdr
->sh_entsize
= 1;
1704 /* Force the section size to the correct value, even if the
1705 linker thinks it is larger. The link routine below will only
1706 write out this much data for .reginfo. */
1707 hdr
->sh_size
= sec
->_raw_size
= sizeof (Elf64_External_RegInfo
);
1709 else if (strcmp (name
, ".hash") == 0
1710 || strcmp (name
, ".dynamic") == 0
1711 || strcmp (name
, ".dynstr") == 0)
1713 hdr
->sh_entsize
= 0;
1714 hdr
->sh_info
= SIZEOF_ALPHA_DYNSYM_SECNAMES
;
1717 else if (strcmp (name
, ".sdata") == 0
1718 || strcmp (name
, ".sbss") == 0
1719 || strcmp (name
, ".lit4") == 0
1720 || strcmp (name
, ".lit8") == 0)
1721 hdr
->sh_flags
|= SHF_ALPHA_GPREL
;
1726 /* Hook called by the linker routine which adds symbols from an object
1727 file. We use it to put .comm items in .sbss, and not .bss. */
1730 elf64_alpha_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1732 struct bfd_link_info
*info
;
1733 const Elf_Internal_Sym
*sym
;
1739 if (sym
->st_shndx
== SHN_COMMON
1740 && !info
->relocateable
1741 && sym
->st_size
<= bfd_get_gp_size (abfd
))
1743 /* Common symbols less than or equal to -G nn bytes are
1744 automatically put into .sbss. */
1746 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1750 scomm
= bfd_make_section (abfd
, ".scommon");
1752 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
| SEC_LOAD
1754 | SEC_LINKER_CREATED
)))
1758 if (bfd_get_section_alignment (abfd
, scomm
) < sym
->st_value
)
1760 if (!bfd_set_section_alignment (abfd
, scomm
, sym
->st_value
))
1765 *valp
= sym
->st_size
;
1771 /* Return the number of additional phdrs we will need. */
1774 elf64_alpha_additional_program_headers (abfd
)
1782 s
= bfd_get_section_by_name (abfd
, ".reginfo");
1783 if (s
!= NULL
&& (s
->flags
& SEC_LOAD
) != 0)
1785 /* We need a PT_ALPHA_REGINFO segment. */
1789 if (bfd_get_section_by_name (abfd
, ".dynamic") != NULL
1790 && bfd_get_section_by_name (abfd
, ".mdebug") != NULL
)
1792 /* We need a PT_ALPHA_RTPROC segment. */
1799 /* Create the .got section. */
1802 elf64_alpha_create_got_section(abfd
, info
)
1804 struct bfd_link_info
*info
;
1808 if (bfd_get_section_by_name (abfd
, ".got"))
1811 s
= bfd_make_section (abfd
, ".got");
1813 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1816 | SEC_LINKER_CREATED
))
1817 || !bfd_set_section_alignment (abfd
, s
, 3))
1820 alpha_elf_tdata (abfd
)->got
= s
;
1825 /* Create all the dynamic sections. */
1828 elf64_alpha_create_dynamic_sections (abfd
, info
)
1830 struct bfd_link_info
*info
;
1833 struct elf_link_hash_entry
*h
;
1835 /* We need to create .plt, .rela.plt, .got, and .rela.got sections. */
1837 s
= bfd_make_section (abfd
, ".plt");
1839 || ! bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1842 | SEC_LINKER_CREATED
1844 || ! bfd_set_section_alignment (abfd
, s
, 3))
1847 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1850 if (! (_bfd_generic_link_add_one_symbol
1851 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
1852 (bfd_vma
) 0, (const char *) NULL
, false,
1853 get_elf_backend_data (abfd
)->collect
,
1854 (struct bfd_link_hash_entry
**) &h
)))
1856 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
1857 h
->type
= STT_OBJECT
;
1860 && ! _bfd_elf_link_record_dynamic_symbol (info
, h
))
1863 s
= bfd_make_section (abfd
, ".rela.plt");
1865 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1868 | SEC_LINKER_CREATED
1870 || ! bfd_set_section_alignment (abfd
, s
, 3))
1873 /* We may or may not have created a .got section for this object, but
1874 we definitely havn't done the rest of the work. */
1876 if (!elf64_alpha_create_got_section (abfd
, info
))
1879 s
= bfd_make_section(abfd
, ".rela.got");
1881 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1884 | SEC_LINKER_CREATED
1886 || !bfd_set_section_alignment (abfd
, s
, 3))
1889 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the
1890 dynobj's .got section. We don't do this in the linker script
1891 because we don't want to define the symbol if we are not creating
1892 a global offset table. */
1894 if (!(_bfd_generic_link_add_one_symbol
1895 (info
, abfd
, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL
,
1896 alpha_elf_tdata(abfd
)->got
, (bfd_vma
) 0, (const char *) NULL
,
1897 false, get_elf_backend_data (abfd
)->collect
,
1898 (struct bfd_link_hash_entry
**) &h
)))
1900 h
->elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
1901 h
->type
= STT_OBJECT
;
1904 && ! _bfd_elf_link_record_dynamic_symbol (info
, h
))
1907 elf_hash_table (info
)->hgot
= h
;
1912 /* Read ECOFF debugging information from a .mdebug section into a
1913 ecoff_debug_info structure. */
1916 elf64_alpha_read_ecoff_info (abfd
, section
, debug
)
1919 struct ecoff_debug_info
*debug
;
1922 const struct ecoff_debug_swap
*swap
;
1923 char *ext_hdr
= NULL
;
1925 swap
= get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
1927 ext_hdr
= (char *) bfd_malloc ((size_t) swap
->external_hdr_size
);
1928 if (ext_hdr
== NULL
&& swap
->external_hdr_size
!= 0)
1931 if (bfd_get_section_contents (abfd
, section
, ext_hdr
, (file_ptr
) 0,
1932 swap
->external_hdr_size
)
1936 symhdr
= &debug
->symbolic_header
;
1937 (*swap
->swap_hdr_in
) (abfd
, ext_hdr
, symhdr
);
1939 /* The symbolic header contains absolute file offsets and sizes to
1941 #define READ(ptr, offset, count, size, type) \
1942 if (symhdr->count == 0) \
1943 debug->ptr = NULL; \
1946 debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
1947 if (debug->ptr == NULL) \
1948 goto error_return; \
1949 if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
1950 || (bfd_read (debug->ptr, size, symhdr->count, \
1951 abfd) != size * symhdr->count)) \
1952 goto error_return; \
1955 READ (line
, cbLineOffset
, cbLine
, sizeof (unsigned char), unsigned char *);
1956 READ (external_dnr
, cbDnOffset
, idnMax
, swap
->external_dnr_size
, PTR
);
1957 READ (external_pdr
, cbPdOffset
, ipdMax
, swap
->external_pdr_size
, PTR
);
1958 READ (external_sym
, cbSymOffset
, isymMax
, swap
->external_sym_size
, PTR
);
1959 READ (external_opt
, cbOptOffset
, ioptMax
, swap
->external_opt_size
, PTR
);
1960 READ (external_aux
, cbAuxOffset
, iauxMax
, sizeof (union aux_ext
),
1962 READ (ss
, cbSsOffset
, issMax
, sizeof (char), char *);
1963 READ (ssext
, cbSsExtOffset
, issExtMax
, sizeof (char), char *);
1964 READ (external_fdr
, cbFdOffset
, ifdMax
, swap
->external_fdr_size
, PTR
);
1965 READ (external_rfd
, cbRfdOffset
, crfd
, swap
->external_rfd_size
, PTR
);
1966 READ (external_ext
, cbExtOffset
, iextMax
, swap
->external_ext_size
, PTR
);
1970 debug
->adjust
= NULL
;
1975 if (ext_hdr
!= NULL
)
1977 if (debug
->line
!= NULL
)
1979 if (debug
->external_dnr
!= NULL
)
1980 free (debug
->external_dnr
);
1981 if (debug
->external_pdr
!= NULL
)
1982 free (debug
->external_pdr
);
1983 if (debug
->external_sym
!= NULL
)
1984 free (debug
->external_sym
);
1985 if (debug
->external_opt
!= NULL
)
1986 free (debug
->external_opt
);
1987 if (debug
->external_aux
!= NULL
)
1988 free (debug
->external_aux
);
1989 if (debug
->ss
!= NULL
)
1991 if (debug
->ssext
!= NULL
)
1992 free (debug
->ssext
);
1993 if (debug
->external_fdr
!= NULL
)
1994 free (debug
->external_fdr
);
1995 if (debug
->external_rfd
!= NULL
)
1996 free (debug
->external_rfd
);
1997 if (debug
->external_ext
!= NULL
)
1998 free (debug
->external_ext
);
2002 /* Alpha ELF local labels start with '$'. */
2005 elf64_alpha_is_local_label_name (abfd
, name
)
2009 return name
[0] == '$';
2012 /* Alpha ELF follows MIPS ELF in using a special find_nearest_line
2013 routine in order to handle the ECOFF debugging information. We
2014 still call this mips_elf_find_line because of the slot
2015 find_line_info in elf_obj_tdata is declared that way. */
2017 struct mips_elf_find_line
2019 struct ecoff_debug_info d
;
2020 struct ecoff_find_line i
;
2024 elf64_alpha_find_nearest_line (abfd
, section
, symbols
, offset
, filename_ptr
,
2025 functionname_ptr
, line_ptr
)
2030 const char **filename_ptr
;
2031 const char **functionname_ptr
;
2032 unsigned int *line_ptr
;
2036 msec
= bfd_get_section_by_name (abfd
, ".mdebug");
2040 struct mips_elf_find_line
*fi
;
2041 const struct ecoff_debug_swap
* const swap
=
2042 get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
2044 /* If we are called during a link, alpha_elf_final_link may have
2045 cleared the SEC_HAS_CONTENTS field. We force it back on here
2046 if appropriate (which it normally will be). */
2047 origflags
= msec
->flags
;
2048 if (elf_section_data (msec
)->this_hdr
.sh_type
!= SHT_NOBITS
)
2049 msec
->flags
|= SEC_HAS_CONTENTS
;
2051 fi
= elf_tdata (abfd
)->find_line_info
;
2054 bfd_size_type external_fdr_size
;
2057 struct fdr
*fdr_ptr
;
2059 fi
= ((struct mips_elf_find_line
*)
2060 bfd_zalloc (abfd
, sizeof (struct mips_elf_find_line
)));
2063 msec
->flags
= origflags
;
2067 if (!elf64_alpha_read_ecoff_info (abfd
, msec
, &fi
->d
))
2069 msec
->flags
= origflags
;
2073 /* Swap in the FDR information. */
2074 fi
->d
.fdr
= ((struct fdr
*)
2076 (fi
->d
.symbolic_header
.ifdMax
*
2077 sizeof (struct fdr
))));
2078 if (fi
->d
.fdr
== NULL
)
2080 msec
->flags
= origflags
;
2083 external_fdr_size
= swap
->external_fdr_size
;
2084 fdr_ptr
= fi
->d
.fdr
;
2085 fraw_src
= (char *) fi
->d
.external_fdr
;
2086 fraw_end
= (fraw_src
2087 + fi
->d
.symbolic_header
.ifdMax
* external_fdr_size
);
2088 for (; fraw_src
< fraw_end
; fraw_src
+= external_fdr_size
, fdr_ptr
++)
2089 (*swap
->swap_fdr_in
) (abfd
, (PTR
) fraw_src
, fdr_ptr
);
2091 elf_tdata (abfd
)->find_line_info
= fi
;
2093 /* Note that we don't bother to ever free this information.
2094 find_nearest_line is either called all the time, as in
2095 objdump -l, so the information should be saved, or it is
2096 rarely called, as in ld error messages, so the memory
2097 wasted is unimportant. Still, it would probably be a
2098 good idea for free_cached_info to throw it away. */
2101 if (_bfd_ecoff_locate_line (abfd
, section
, offset
, &fi
->d
, swap
,
2102 &fi
->i
, filename_ptr
, functionname_ptr
,
2105 msec
->flags
= origflags
;
2109 msec
->flags
= origflags
;
2112 /* Fall back on the generic ELF find_nearest_line routine. */
2114 return _bfd_elf_find_nearest_line (abfd
, section
, symbols
, offset
,
2115 filename_ptr
, functionname_ptr
,
2119 /* Structure used to pass information to alpha_elf_output_extsym. */
2124 struct bfd_link_info
*info
;
2125 struct ecoff_debug_info
*debug
;
2126 const struct ecoff_debug_swap
*swap
;
2131 elf64_alpha_output_extsym (h
, data
)
2132 struct alpha_elf_link_hash_entry
*h
;
2135 struct extsym_info
*einfo
= (struct extsym_info
*) data
;
2137 asection
*sec
, *output_section
;
2139 if (h
->root
.indx
== -2)
2141 else if (((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_DYNAMIC
) != 0
2142 || (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_DYNAMIC
) != 0)
2143 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0
2144 && (h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_REF_REGULAR
) == 0)
2146 else if (einfo
->info
->strip
== strip_all
2147 || (einfo
->info
->strip
== strip_some
2148 && bfd_hash_lookup (einfo
->info
->keep_hash
,
2149 h
->root
.root
.root
.string
,
2150 false, false) == NULL
))
2158 if (h
->esym
.ifd
== -2)
2161 h
->esym
.cobol_main
= 0;
2162 h
->esym
.weakext
= 0;
2163 h
->esym
.reserved
= 0;
2164 h
->esym
.ifd
= ifdNil
;
2165 h
->esym
.asym
.value
= 0;
2166 h
->esym
.asym
.st
= stGlobal
;
2168 if (h
->root
.root
.type
!= bfd_link_hash_defined
2169 && h
->root
.root
.type
!= bfd_link_hash_defweak
)
2170 h
->esym
.asym
.sc
= scAbs
;
2175 sec
= h
->root
.root
.u
.def
.section
;
2176 output_section
= sec
->output_section
;
2178 /* When making a shared library and symbol h is the one from
2179 the another shared library, OUTPUT_SECTION may be null. */
2180 if (output_section
== NULL
)
2181 h
->esym
.asym
.sc
= scUndefined
;
2184 name
= bfd_section_name (output_section
->owner
, output_section
);
2186 if (strcmp (name
, ".text") == 0)
2187 h
->esym
.asym
.sc
= scText
;
2188 else if (strcmp (name
, ".data") == 0)
2189 h
->esym
.asym
.sc
= scData
;
2190 else if (strcmp (name
, ".sdata") == 0)
2191 h
->esym
.asym
.sc
= scSData
;
2192 else if (strcmp (name
, ".rodata") == 0
2193 || strcmp (name
, ".rdata") == 0)
2194 h
->esym
.asym
.sc
= scRData
;
2195 else if (strcmp (name
, ".bss") == 0)
2196 h
->esym
.asym
.sc
= scBss
;
2197 else if (strcmp (name
, ".sbss") == 0)
2198 h
->esym
.asym
.sc
= scSBss
;
2199 else if (strcmp (name
, ".init") == 0)
2200 h
->esym
.asym
.sc
= scInit
;
2201 else if (strcmp (name
, ".fini") == 0)
2202 h
->esym
.asym
.sc
= scFini
;
2204 h
->esym
.asym
.sc
= scAbs
;
2208 h
->esym
.asym
.reserved
= 0;
2209 h
->esym
.asym
.index
= indexNil
;
2212 if (h
->root
.root
.type
== bfd_link_hash_common
)
2213 h
->esym
.asym
.value
= h
->root
.root
.u
.c
.size
;
2214 else if (h
->root
.root
.type
== bfd_link_hash_defined
2215 || h
->root
.root
.type
== bfd_link_hash_defweak
)
2217 if (h
->esym
.asym
.sc
== scCommon
)
2218 h
->esym
.asym
.sc
= scBss
;
2219 else if (h
->esym
.asym
.sc
== scSCommon
)
2220 h
->esym
.asym
.sc
= scSBss
;
2222 sec
= h
->root
.root
.u
.def
.section
;
2223 output_section
= sec
->output_section
;
2224 if (output_section
!= NULL
)
2225 h
->esym
.asym
.value
= (h
->root
.root
.u
.def
.value
2226 + sec
->output_offset
2227 + output_section
->vma
);
2229 h
->esym
.asym
.value
= 0;
2231 else if ((h
->root
.elf_link_hash_flags
& ELF_LINK_HASH_NEEDS_PLT
) != 0)
2233 /* Set type and value for a symbol with a function stub. */
2234 h
->esym
.asym
.st
= stProc
;
2235 sec
= bfd_get_section_by_name (einfo
->abfd
, ".plt");
2237 h
->esym
.asym
.value
= 0;
2240 output_section
= sec
->output_section
;
2241 if (output_section
!= NULL
)
2242 h
->esym
.asym
.value
= (h
->root
.plt_offset
2243 + sec
->output_offset
2244 + output_section
->vma
);
2246 h
->esym
.asym
.value
= 0;
2253 if (! bfd_ecoff_debug_one_external (einfo
->abfd
, einfo
->debug
, einfo
->swap
,
2254 h
->root
.root
.root
.string
,
2257 einfo
->failed
= true;
2264 /* FIXME: Create a runtime procedure table from the .mdebug section.
2267 mips_elf_create_procedure_table (handle, abfd, info, s, debug)
2270 struct bfd_link_info *info;
2272 struct ecoff_debug_info *debug;
2275 /* Handle dynamic relocations when doing an Alpha ELF link. */
2278 elf64_alpha_check_relocs (abfd
, info
, sec
, relocs
)
2280 struct bfd_link_info
*info
;
2282 const Elf_Internal_Rela
*relocs
;
2286 const char *rel_sec_name
;
2287 Elf_Internal_Shdr
*symtab_hdr
;
2288 struct alpha_elf_link_hash_entry
**sym_hashes
;
2289 struct alpha_elf_got_entry
**local_got_entries
;
2290 const Elf_Internal_Rela
*rel
, *relend
;
2293 if (info
->relocateable
)
2296 dynobj
= elf_hash_table(info
)->dynobj
;
2298 elf_hash_table(info
)->dynobj
= dynobj
= abfd
;
2301 rel_sec_name
= NULL
;
2302 symtab_hdr
= &elf_tdata(abfd
)->symtab_hdr
;
2303 sym_hashes
= alpha_elf_sym_hashes(abfd
);
2304 local_got_entries
= alpha_elf_tdata(abfd
)->local_got_entries
;
2307 relend
= relocs
+ sec
->reloc_count
;
2308 for (rel
= relocs
; rel
< relend
; ++rel
)
2310 unsigned long r_symndx
, r_type
;
2311 struct alpha_elf_link_hash_entry
*h
;
2313 r_symndx
= ELF64_R_SYM (rel
->r_info
);
2314 if (r_symndx
< symtab_hdr
->sh_info
)
2318 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2320 while (h
->root
.root
.type
== bfd_link_hash_indirect
2321 || h
->root
.root
.type
== bfd_link_hash_warning
)
2322 h
= (struct alpha_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
2324 h
->root
.elf_link_hash_flags
|= ELF_LINK_HASH_REF_REGULAR
;
2326 r_type
= ELF64_R_TYPE (rel
->r_info
);
2330 case R_ALPHA_LITERAL
:
2332 struct alpha_elf_got_entry
*gotent
;
2337 /* Search for and possibly create a got entry. */
2338 for (gotent
= h
->got_entries
; gotent
; gotent
= gotent
->next
)
2339 if (gotent
->gotobj
== abfd
&&
2340 gotent
->addend
== rel
->r_addend
)
2345 gotent
= ((struct alpha_elf_got_entry
*)
2347 sizeof (struct alpha_elf_got_entry
)));
2351 gotent
->gotobj
= abfd
;
2352 gotent
->addend
= rel
->r_addend
;
2353 gotent
->got_offset
= -1;
2355 gotent
->use_count
= 1;
2357 gotent
->next
= h
->got_entries
;
2358 h
->got_entries
= gotent
;
2360 alpha_elf_tdata (abfd
)->total_got_entries
++;
2363 gotent
->use_count
+= 1;
2367 /* This is a local .got entry -- record for merge. */
2368 if (!local_got_entries
)
2371 size
= (symtab_hdr
->sh_info
2372 * sizeof (struct alpha_elf_got_entry
*));
2374 local_got_entries
= ((struct alpha_elf_got_entry
**)
2375 bfd_alloc (abfd
, size
));
2376 if (!local_got_entries
)
2379 memset (local_got_entries
, 0, size
);
2380 alpha_elf_tdata (abfd
)->local_got_entries
=
2384 for (gotent
= local_got_entries
[ELF64_R_SYM(rel
->r_info
)];
2385 gotent
!= NULL
&& gotent
->addend
!= rel
->r_addend
;
2386 gotent
= gotent
->next
)
2390 gotent
= ((struct alpha_elf_got_entry
*)
2392 sizeof (struct alpha_elf_got_entry
)));
2396 gotent
->gotobj
= abfd
;
2397 gotent
->addend
= rel
->r_addend
;
2398 gotent
->got_offset
= -1;
2400 gotent
->use_count
= 1;
2402 gotent
->next
= local_got_entries
[ELF64_R_SYM(rel
->r_info
)];
2403 local_got_entries
[ELF64_R_SYM(rel
->r_info
)] = gotent
;
2405 alpha_elf_tdata(abfd
)->total_got_entries
++;
2406 alpha_elf_tdata(abfd
)->n_local_got_entries
++;
2409 gotent
->use_count
+= 1;
2412 /* Remember how this literal is used from its LITUSEs.
2413 This will be important when it comes to decide if we can
2414 create a .plt entry for a function symbol. */
2416 && ELF64_R_TYPE (rel
[1].r_info
) == R_ALPHA_LITUSE
)
2421 if (rel
->r_addend
>= 1 && rel
->r_addend
<= 3)
2422 flags
|= 1 << rel
->r_addend
;
2424 while (rel
+1 < relend
&&
2425 ELF64_R_TYPE (rel
[1].r_info
) == R_ALPHA_LITUSE
);
2429 /* No LITUSEs -- presumably the address is not being
2430 loaded for nothing. */
2431 flags
= ALPHA_ELF_LINK_HASH_LU_ADDR
;
2434 gotent
->flags
|= flags
;
2437 /* Make a guess as to whether a .plt entry will be needed. */
2438 if ((h
->flags
|= flags
) == ALPHA_ELF_LINK_HASH_LU_FUNC
)
2439 h
->root
.elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
2441 h
->root
.elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
2446 case R_ALPHA_GPDISP
:
2447 case R_ALPHA_GPREL32
:
2448 case R_ALPHA_GPRELHIGH
:
2449 case R_ALPHA_GPRELLOW
:
2450 /* We don't actually use the .got here, but the sections must
2451 be created before the linker maps input sections to output
2455 if (!elf64_alpha_create_got_section (abfd
, info
))
2458 /* Make sure the object's gotobj is set to itself so
2459 that we default to every object with its own .got.
2460 We'll merge .gots later once we've collected each
2462 alpha_elf_tdata(abfd
)->gotobj
= abfd
;
2468 case R_ALPHA_SREL16
:
2469 case R_ALPHA_SREL32
:
2470 case R_ALPHA_SREL64
:
2475 case R_ALPHA_REFLONG
:
2476 case R_ALPHA_REFQUAD
:
2477 if (rel_sec_name
== NULL
)
2479 rel_sec_name
= (bfd_elf_string_from_elf_section
2480 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2481 elf_section_data(sec
)->rel_hdr
.sh_name
));
2482 if (rel_sec_name
== NULL
)
2485 BFD_ASSERT (strncmp (rel_sec_name
, ".rela", 5) == 0
2486 && strcmp (bfd_get_section_name (abfd
, sec
),
2487 rel_sec_name
+5) == 0);
2490 /* We need to create the section here now whether we eventually
2491 use it or not so that it gets mapped to an output section by
2492 the linker. If not used, we'll kill it in
2493 size_dynamic_sections. */
2496 sreloc
= bfd_get_section_by_name (dynobj
, rel_sec_name
);
2499 sreloc
= bfd_make_section (dynobj
, rel_sec_name
);
2501 || !bfd_set_section_flags (dynobj
, sreloc
,
2505 | SEC_LINKER_CREATED
2507 || !bfd_set_section_alignment (dynobj
, sreloc
, 3))
2514 /* Since we havn't seen all of the input symbols yet, we
2515 don't know whether we'll actually need a dynamic relocation
2516 entry for this reloc. So make a record of it. Once we
2517 find out if this thing needs dynamic relocation we'll
2518 expand the relocation sections by the appropriate amount. */
2520 struct alpha_elf_reloc_entry
*rent
;
2522 for (rent
= h
->reloc_entries
; rent
; rent
= rent
->next
)
2523 if (rent
->rtype
== r_type
&& rent
->srel
== sreloc
)
2528 rent
= ((struct alpha_elf_reloc_entry
*)
2530 sizeof (struct alpha_elf_reloc_entry
)));
2534 rent
->srel
= sreloc
;
2535 rent
->rtype
= r_type
;
2538 rent
->next
= h
->reloc_entries
;
2539 h
->reloc_entries
= rent
;
2544 else if (info
->shared
)
2546 /* If this is a shared library, we need a RELATIVE reloc. */
2547 sreloc
->_raw_size
+= sizeof (Elf64_External_Rela
);
2556 /* Adjust a symbol defined by a dynamic object and referenced by a
2557 regular object. The current definition is in some section of the
2558 dynamic object, but we're not including those sections. We have to
2559 change the definition to something the rest of the link can
2563 elf64_alpha_adjust_dynamic_symbol (info
, h
)
2564 struct bfd_link_info
*info
;
2565 struct elf_link_hash_entry
*h
;
2569 struct alpha_elf_link_hash_entry
*ah
;
2571 dynobj
= elf_hash_table(info
)->dynobj
;
2572 ah
= (struct alpha_elf_link_hash_entry
*)h
;
2574 /* Now that we've seen all of the input symbols, finalize our decision
2575 about whether this symbol should get a .plt entry. */
2577 if (h
->root
.type
!= bfd_link_hash_undefweak
2578 && alpha_elf_dynamic_symbol_p (h
, info
)
2579 && ((h
->type
== STT_FUNC
2580 && !(ah
->flags
& ALPHA_ELF_LINK_HASH_LU_ADDR
))
2581 || (h
->type
== STT_NOTYPE
2582 && ah
->flags
== ALPHA_ELF_LINK_HASH_LU_FUNC
))
2583 /* Don't prevent otherwise valid programs from linking by attempting
2584 to create a new .got entry somewhere. A Correct Solution would be
2585 to add a new .got section to a new object file and let it be merged
2586 somewhere later. But for now don't bother. */
2589 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
2591 s
= bfd_get_section_by_name(dynobj
, ".plt");
2592 if (!s
&& !elf64_alpha_create_dynamic_sections (dynobj
, info
))
2595 /* The first bit of the .plt is reserved. */
2596 if (s
->_raw_size
== 0)
2597 s
->_raw_size
= PLT_HEADER_SIZE
;
2599 h
->plt_offset
= s
->_raw_size
;
2600 s
->_raw_size
+= PLT_ENTRY_SIZE
;
2602 /* If this symbol is not defined in a regular file, and we are not
2603 generating a shared library, then set the symbol to the location
2604 in the .plt. This is required to make function pointers compare
2605 equal between the normal executable and the shared library. */
2608 h
->root
.u
.def
.section
= s
;
2609 h
->root
.u
.def
.value
= h
->plt_offset
;
2612 /* We also need a JMP_SLOT entry in the .rela.plt section. */
2613 s
= bfd_get_section_by_name (dynobj
, ".rela.plt");
2614 BFD_ASSERT (s
!= NULL
);
2615 s
->_raw_size
+= sizeof (Elf64_External_Rela
);
2620 h
->elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
2622 /* If this is a weak symbol, and there is a real definition, the
2623 processor independent code will have arranged for us to see the
2624 real definition first, and we can just use the same value. */
2625 if (h
->weakdef
!= NULL
)
2627 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2628 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2629 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2630 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2634 /* This is a reference to a symbol defined by a dynamic object which
2635 is not a function. The Alpha, since it uses .got entries for all
2636 symbols even in regular objects, does not need the hackery of a
2637 .dynbss section and COPY dynamic relocations. */
2642 /* Symbol versioning can create new symbols, and make our old symbols
2643 indirect to the new ones. Consolidate the got and reloc information
2644 in these situations. */
2647 elf64_alpha_merge_ind_symbols (hi
, dummy
)
2648 struct alpha_elf_link_hash_entry
*hi
;
2651 struct alpha_elf_link_hash_entry
*hs
;
2653 if (hi
->root
.root
.type
!= bfd_link_hash_indirect
)
2657 hs
= (struct alpha_elf_link_hash_entry
*)hs
->root
.root
.u
.i
.link
;
2658 } while (hs
->root
.root
.type
== bfd_link_hash_indirect
);
2660 /* Merge the flags. Whee. */
2662 hs
->flags
|= hi
->flags
;
2664 /* Merge the .got entries. Cannibalize the old symbol's list in
2665 doing so, since we don't need it anymore. */
2667 if (hs
->got_entries
== NULL
)
2668 hs
->got_entries
= hi
->got_entries
;
2671 struct alpha_elf_got_entry
*gi
, *gs
, *gin
, *gsh
;
2673 gsh
= hs
->got_entries
;
2674 for (gi
= hi
->got_entries
; gi
; gi
= gin
)
2677 for (gs
= gsh
; gs
; gs
= gs
->next
)
2678 if (gi
->gotobj
== gs
->gotobj
&& gi
->addend
== gs
->addend
)
2680 gi
->next
= hs
->got_entries
;
2681 hs
->got_entries
= gi
;
2685 hi
->got_entries
= NULL
;
2687 /* And similar for the reloc entries. */
2689 if (hs
->reloc_entries
== NULL
)
2690 hs
->reloc_entries
= hi
->reloc_entries
;
2693 struct alpha_elf_reloc_entry
*ri
, *rs
, *rin
, *rsh
;
2695 rsh
= hs
->reloc_entries
;
2696 for (ri
= hi
->reloc_entries
; ri
; ri
= rin
)
2699 for (rs
= rsh
; rs
; rs
= rs
->next
)
2700 if (ri
->rtype
== rs
->rtype
)
2702 rs
->count
+= ri
->count
;
2705 ri
->next
= hs
->reloc_entries
;
2706 hs
->reloc_entries
= ri
;
2710 hi
->reloc_entries
= NULL
;
2715 /* Is it possible to merge two object file's .got tables? */
2718 elf64_alpha_can_merge_gots (a
, b
)
2721 int total
= alpha_elf_tdata (a
)->total_got_entries
;
2723 /* Trivial quick fallout test. */
2724 if (total
+ alpha_elf_tdata (b
)->total_got_entries
<= MAX_GOT_ENTRIES
)
2727 /* By their nature, local .got entries cannot be merged. */
2728 if ((total
+= alpha_elf_tdata (b
)->n_local_got_entries
) > MAX_GOT_ENTRIES
)
2731 /* Failing the common trivial comparison, we must effectively
2732 perform the merge. Not actually performing the merge means that
2733 we don't have to store undo information in case we fail. */
2735 struct alpha_elf_link_hash_entry
**hashes
= alpha_elf_sym_hashes(b
);
2736 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata(b
)->symtab_hdr
;
2739 n
= symtab_hdr
->sh_size
/ symtab_hdr
->sh_entsize
- symtab_hdr
->sh_info
;
2740 for (i
= 0; i
< n
; ++i
)
2742 struct alpha_elf_got_entry
*ae
, *be
;
2743 struct alpha_elf_link_hash_entry
*h
;
2746 while (h
->root
.root
.type
== bfd_link_hash_indirect
2747 || h
->root
.root
.type
== bfd_link_hash_warning
)
2748 h
= (struct alpha_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
2750 for (be
= h
->got_entries
; be
; be
= be
->next
)
2752 if (be
->use_count
== 0)
2754 if (be
->gotobj
!= b
)
2757 for (ae
= h
->got_entries
; ae
; ae
= ae
->next
)
2758 if (ae
->gotobj
== a
&& ae
->addend
== be
->addend
)
2761 if (++total
> MAX_GOT_ENTRIES
)
2771 /* Actually merge two .got tables. */
2774 elf64_alpha_merge_gots (a
, b
)
2777 int total
= alpha_elf_tdata(a
)->total_got_entries
;
2779 /* Remember local expansion. */
2781 int e
= alpha_elf_tdata(b
)->n_local_got_entries
;
2783 alpha_elf_tdata(a
)->n_local_got_entries
+= e
;
2786 /* Let the local .got entries know they are part of a new subsegment. */
2788 struct alpha_elf_got_entry
**local_got_entries
;
2789 local_got_entries
= alpha_elf_tdata(b
)->local_got_entries
;
2790 if (local_got_entries
)
2794 n
= elf_tdata(b
)->symtab_hdr
.sh_info
;
2795 for (i
= 0; i
< n
; ++i
)
2797 struct alpha_elf_got_entry
*gotent
;
2798 for (gotent
= local_got_entries
[i
]; gotent
; gotent
= gotent
->next
)
2804 /* Merge the global .got entries. */
2806 struct alpha_elf_link_hash_entry
**hashes
= alpha_elf_sym_hashes(b
);
2807 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata(b
)->symtab_hdr
;
2810 n
= symtab_hdr
->sh_size
/ symtab_hdr
->sh_entsize
- symtab_hdr
->sh_info
;
2811 for (i
= 0; i
< n
; ++i
)
2813 struct alpha_elf_got_entry
*ae
, *be
, **pbe
, **start
;
2814 struct alpha_elf_link_hash_entry
*h
;
2817 while (h
->root
.root
.type
== bfd_link_hash_indirect
2818 || h
->root
.root
.type
== bfd_link_hash_warning
)
2819 h
= (struct alpha_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
2821 start
= &h
->got_entries
;
2822 for (pbe
= start
, be
= *start
; be
; pbe
= &be
->next
, be
= be
->next
)
2824 if (be
->use_count
== 0)
2829 if (be
->gotobj
!= b
)
2832 for (ae
= *start
; ae
; ae
= ae
->next
)
2833 if (ae
->gotobj
== a
&& ae
->addend
== be
->addend
)
2835 ae
->flags
|= be
->flags
;
2847 alpha_elf_tdata(a
)->total_got_entries
= total
;
2848 alpha_elf_tdata(b
)->gotobj
= a
;
2851 /* Calculate the offsets for the got entries. */
2854 elf64_alpha_calc_got_offsets_for_symbol (h
, arg
)
2855 struct alpha_elf_link_hash_entry
*h
;
2858 struct alpha_elf_got_entry
*gotent
;
2860 for (gotent
= h
->got_entries
; gotent
; gotent
= gotent
->next
)
2861 if (gotent
->use_count
> 0)
2864 = &alpha_elf_tdata (gotent
->gotobj
)->got
->_raw_size
;
2866 gotent
->got_offset
= *plge
;
2874 elf64_alpha_calc_got_offsets (info
)
2875 struct bfd_link_info
*info
;
2877 bfd
*i
, *got_list
= alpha_elf_hash_table(info
)->got_list
;
2879 /* First, zero out the .got sizes, as we may be recalculating the
2880 .got after optimizing it. */
2881 for (i
= got_list
; i
; i
= alpha_elf_tdata(i
)->got_link_next
)
2882 alpha_elf_tdata(i
)->got
->_raw_size
= 0;
2884 /* Next, fill in the offsets for all the global entries. */
2885 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info
),
2886 elf64_alpha_calc_got_offsets_for_symbol
,
2889 /* Finally, fill in the offsets for the local entries. */
2890 for (i
= got_list
; i
; i
= alpha_elf_tdata(i
)->got_link_next
)
2892 bfd_size_type got_offset
= alpha_elf_tdata(i
)->got
->_raw_size
;
2895 for (j
= i
; j
; j
= alpha_elf_tdata(j
)->in_got_link_next
)
2897 struct alpha_elf_got_entry
**local_got_entries
, *gotent
;
2900 local_got_entries
= alpha_elf_tdata(j
)->local_got_entries
;
2901 if (!local_got_entries
)
2904 for (k
= 0, n
= elf_tdata(j
)->symtab_hdr
.sh_info
; k
< n
; ++k
)
2905 for (gotent
= local_got_entries
[k
]; gotent
; gotent
= gotent
->next
)
2906 if (gotent
->use_count
> 0)
2908 gotent
->got_offset
= got_offset
;
2913 alpha_elf_tdata(i
)->got
->_raw_size
= got_offset
;
2914 alpha_elf_tdata(i
)->got
->_cooked_size
= got_offset
;
2918 /* Remove a section from the output BFD. */
2921 elf64_alpha_strip_section_from_output (s
)
2926 for (spp
= &s
->output_section
->owner
->sections
;
2927 *spp
!= s
->output_section
;
2928 spp
= &(*spp
)->next
)
2930 *spp
= s
->output_section
->next
;
2931 --s
->output_section
->owner
->section_count
;
2934 /* Constructs the gots. */
2937 elf64_alpha_size_got_sections (output_bfd
, info
)
2939 struct bfd_link_info
*info
;
2941 bfd
*i
, *got_list
, *cur_got_obj
, **cur_got_tail
;
2947 cur_got_tail
= NULL
;
2948 for (i
= info
->input_bfds
; i
; i
= i
->link_next
)
2950 bfd
*this_got
= alpha_elf_tdata (i
)->gotobj
;
2952 /* Don't play if there is no .got for this input file. */
2953 if (this_got
== NULL
)
2956 if (alpha_elf_tdata (this_got
)->total_got_entries
> MAX_GOT_ENTRIES
)
2958 /* Yikes! A single object file has too many entries. */
2959 (*_bfd_error_handler
)
2960 (_("%s: .got subsegment exceeds 64K (size %d)"),
2961 bfd_get_filename(i
),
2962 alpha_elf_tdata(this_got
)->total_got_entries
* 8);
2968 if (this_got
== cur_got_obj
)
2969 ; /* Some previous pass merged us already. */
2970 else if (elf64_alpha_can_merge_gots (cur_got_obj
, i
))
2972 elf64_alpha_merge_gots (cur_got_obj
, i
);
2979 (*info
->callbacks
->warning
)
2980 (info
, _("using multiple gp values"), (char *) NULL
,
2981 output_bfd
, (asection
*) NULL
, (bfd_vma
) 0);
2983 *cur_got_tail
= NULL
;
2984 alpha_elf_tdata(cur_got_obj
)->got_link_next
= got_list
;
2985 got_list
= cur_got_obj
;
2994 cur_got_tail
= &alpha_elf_tdata(i
)->in_got_link_next
;
2998 alpha_elf_tdata (cur_got_obj
)->got_link_next
= got_list
;
2999 alpha_elf_hash_table (info
)->got_list
= cur_got_obj
;
3001 /* Once the gots have been merged, fill in the got offsets for everything
3003 elf64_alpha_calc_got_offsets (info
);
3009 elf64_alpha_always_size_sections (output_bfd
, info
)
3011 struct bfd_link_info
*info
;
3015 if (info
->relocateable
)
3018 /* First, take care of the indirect symbols created by versioning. */
3019 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info
),
3020 elf64_alpha_merge_ind_symbols
,
3023 if (!elf64_alpha_size_got_sections (output_bfd
, info
))
3026 /* Allocate space for all of the .got subsections. */
3027 i
= alpha_elf_hash_table (info
)->got_list
;
3028 for ( ; i
; i
= alpha_elf_tdata(i
)->got_link_next
)
3030 asection
*s
= alpha_elf_tdata(i
)->got
;
3031 if (s
->_raw_size
> 0)
3033 s
->contents
= (bfd_byte
*) bfd_zalloc (i
, s
->_raw_size
);
3034 if (s
->contents
== NULL
)
3042 /* Work out the sizes of the dynamic relocation entries. */
3045 elf64_alpha_calc_dynrel_sizes (h
, info
)
3046 struct alpha_elf_link_hash_entry
*h
;
3047 struct bfd_link_info
*info
;
3049 /* If the symbol was defined as a common symbol in a regular object
3050 file, and there was no definition in any dynamic object, then the
3051 linker will have allocated space for the symbol in a common
3052 section but the ELF_LINK_HASH_DEF_REGULAR flag will not have been
3053 set. This is done for dynamic symbols in
3054 elf_adjust_dynamic_symbol but this is not done for non-dynamic
3055 symbols, somehow. */
3056 if (((h
->root
.elf_link_hash_flags
3057 & (ELF_LINK_HASH_DEF_REGULAR
3058 | ELF_LINK_HASH_REF_REGULAR
3059 | ELF_LINK_HASH_DEF_DYNAMIC
))
3060 == ELF_LINK_HASH_REF_REGULAR
)
3061 && (h
->root
.root
.type
== bfd_link_hash_defined
3062 || h
->root
.root
.type
== bfd_link_hash_defweak
)
3063 && !(h
->root
.root
.u
.def
.section
->owner
->flags
& DYNAMIC
))
3065 h
->root
.elf_link_hash_flags
|= ELF_LINK_HASH_DEF_REGULAR
;
3068 /* If the symbol is dynamic, we'll need all the relocations in their
3069 natural form. If it has been forced local, we'll need the same
3070 number of RELATIVE relocations. */
3071 if (alpha_elf_dynamic_symbol_p (&h
->root
, info
)
3072 || (info
->shared
&& h
->root
.dynindx
== -1))
3074 struct alpha_elf_reloc_entry
*relent
;
3076 for (relent
= h
->reloc_entries
; relent
; relent
= relent
->next
)
3078 relent
->srel
->_raw_size
+=
3079 sizeof (Elf64_External_Rela
) * relent
->count
;
3082 /* Only add a .rela.got entry if we're not using a .plt entry. */
3083 if (h
->root
.plt_offset
== MINUS_ONE
)
3085 bfd
*dynobj
= elf_hash_table(info
)->dynobj
;
3086 struct alpha_elf_got_entry
*gotent
;
3087 bfd_size_type count
= 0;
3090 for (gotent
= h
->got_entries
; gotent
; gotent
= gotent
->next
)
3094 srel
= bfd_get_section_by_name (dynobj
, ".rela.got");
3095 BFD_ASSERT (srel
!= NULL
);
3096 srel
->_raw_size
+= sizeof (Elf64_External_Rela
) * count
;
3100 /* Otherwise, shared objects require RELATIVE relocs for all REFQUAD
3101 and REFLONG relocations. */
3102 else if (info
->shared
)
3104 struct alpha_elf_reloc_entry
*relent
;
3106 for (relent
= h
->reloc_entries
; relent
; relent
= relent
->next
)
3107 if (relent
->rtype
== R_ALPHA_REFLONG
3108 || relent
->rtype
== R_ALPHA_REFQUAD
)
3110 relent
->srel
->_raw_size
+=
3111 sizeof(Elf64_External_Rela
) * relent
->count
;
3118 /* Set the sizes of the dynamic sections. */
3121 elf64_alpha_size_dynamic_sections (output_bfd
, info
)
3123 struct bfd_link_info
*info
;
3130 dynobj
= elf_hash_table(info
)->dynobj
;
3131 BFD_ASSERT(dynobj
!= NULL
);
3133 if (elf_hash_table (info
)->dynamic_sections_created
)
3135 /* Set the contents of the .interp section to the interpreter. */
3138 s
= bfd_get_section_by_name (dynobj
, ".interp");
3139 BFD_ASSERT (s
!= NULL
);
3140 s
->_raw_size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3141 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3144 /* Now that we've seen all of the input files, we can decide which
3145 symbols need dynamic relocation entries and which don't. We've
3146 collected information in check_relocs that we can now apply to
3147 size the dynamic relocation sections. */
3148 alpha_elf_link_hash_traverse (alpha_elf_hash_table (info
),
3149 elf64_alpha_calc_dynrel_sizes
,
3152 /* When building shared libraries, each local .got entry needs a
3158 bfd_size_type count
;
3160 srel
= bfd_get_section_by_name (dynobj
, ".rela.got");
3161 BFD_ASSERT (srel
!= NULL
);
3163 for (i
= alpha_elf_hash_table(info
)->got_list
, count
= 0;
3165 i
= alpha_elf_tdata(i
)->got_link_next
)
3166 count
+= alpha_elf_tdata(i
)->n_local_got_entries
;
3168 srel
->_raw_size
+= count
* sizeof(Elf64_External_Rela
);
3171 /* else we're not dynamic and by definition we don't need such things. */
3173 /* The check_relocs and adjust_dynamic_symbol entry points have
3174 determined the sizes of the various dynamic sections. Allocate
3178 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3183 if (!(s
->flags
& SEC_LINKER_CREATED
))
3186 /* It's OK to base decisions on the section name, because none
3187 of the dynobj section names depend upon the input files. */
3188 name
= bfd_get_section_name (dynobj
, s
);
3190 /* If we don't need this section, strip it from the output file.
3191 This is to handle .rela.bss and .rela.plt. We must create it
3192 in create_dynamic_sections, because it must be created before
3193 the linker maps input sections to output sections. The
3194 linker does that before adjust_dynamic_symbol is called, and
3195 it is that function which decides whether anything needs to
3196 go into these sections. */
3200 if (strncmp (name
, ".rela", 5) == 0)
3202 strip
= (s
->_raw_size
== 0);
3206 const char *outname
;
3209 /* If this relocation section applies to a read only
3210 section, then we probably need a DT_TEXTREL entry. */
3211 outname
= bfd_get_section_name (output_bfd
,
3213 target
= bfd_get_section_by_name (output_bfd
, outname
+ 5);
3215 && (target
->flags
& SEC_READONLY
) != 0
3216 && (target
->flags
& SEC_ALLOC
) != 0)
3219 if (strcmp(name
, ".rela.plt") == 0)
3222 /* We use the reloc_count field as a counter if we need
3223 to copy relocs into the output file. */
3227 else if (strcmp (name
, ".plt") != 0)
3229 /* It's not one of our dynamic sections, so don't allocate space. */
3234 elf64_alpha_strip_section_from_output (s
);
3237 /* Allocate memory for the section contents. */
3238 s
->contents
= (bfd_byte
*) bfd_zalloc(dynobj
, s
->_raw_size
);
3239 if (s
->contents
== NULL
&& s
->_raw_size
!= 0)
3244 /* If we are generating a shared library, we generate a section
3245 symbol for each output section. These are local symbols, which
3246 means that they must come first in the dynamic symbol table.
3247 That means we must increment the dynamic symbol index of every
3248 other dynamic symbol. */
3255 c
[1] = bfd_count_sections (output_bfd
);
3257 elf_hash_table (info
)->dynsymcount
+= c
[1];
3258 elf_link_hash_traverse (elf_hash_table(info
),
3259 elf64_alpha_adjust_dynindx
,
3262 for (i
= 1, p
= output_bfd
->sections
;
3266 elf_section_data (p
)->dynindx
= i
;
3267 /* These symbols will have no names, so we don't need to
3268 fiddle with dynstr_index. */
3272 if (elf_hash_table (info
)->dynamic_sections_created
)
3274 /* Add some entries to the .dynamic section. We fill in the
3275 values later, in elf64_alpha_finish_dynamic_sections, but we
3276 must add the entries now so that we get the correct size for
3277 the .dynamic section. The DT_DEBUG entry is filled in by the
3278 dynamic linker and used by the debugger. */
3281 if (!bfd_elf64_add_dynamic_entry (info
, DT_DEBUG
, 0))
3285 if (! bfd_elf64_add_dynamic_entry (info
, DT_PLTGOT
, 0))
3290 if (! bfd_elf64_add_dynamic_entry (info
, DT_PLTRELSZ
, 0)
3291 || ! bfd_elf64_add_dynamic_entry (info
, DT_PLTREL
, DT_RELA
)
3292 || ! bfd_elf64_add_dynamic_entry (info
, DT_JMPREL
, 0))
3296 if (! bfd_elf64_add_dynamic_entry (info
, DT_RELA
, 0)
3297 || ! bfd_elf64_add_dynamic_entry (info
, DT_RELASZ
, 0)
3298 || ! bfd_elf64_add_dynamic_entry (info
, DT_RELAENT
,
3299 sizeof(Elf64_External_Rela
)))
3304 if (! bfd_elf64_add_dynamic_entry (info
, DT_TEXTREL
, 0))
3312 /* Increment the index of a dynamic symbol by a given amount. Called
3313 via elf_link_hash_traverse. */
3316 elf64_alpha_adjust_dynindx (h
, cparg
)
3317 struct elf_link_hash_entry
*h
;
3320 long *cp
= (long *)cparg
;
3322 if (h
->dynindx
>= cp
[0])
3323 h
->dynindx
+= cp
[1];
3328 /* Relocate an Alpha ELF section. */
3331 elf64_alpha_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3332 contents
, relocs
, local_syms
, local_sections
)
3334 struct bfd_link_info
*info
;
3336 asection
*input_section
;
3338 Elf_Internal_Rela
*relocs
;
3339 Elf_Internal_Sym
*local_syms
;
3340 asection
**local_sections
;
3342 Elf_Internal_Shdr
*symtab_hdr
;
3343 Elf_Internal_Rela
*rel
;
3344 Elf_Internal_Rela
*relend
;
3345 asection
*sec
, *sgot
, *srel
, *srelgot
;
3346 bfd
*dynobj
, *gotobj
;
3349 srelgot
= srel
= NULL
;
3350 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3351 dynobj
= elf_hash_table (info
)->dynobj
;
3354 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3357 /* Find the gp value for this input bfd. */
3360 gotobj
= alpha_elf_tdata (input_bfd
)->gotobj
;
3363 sgot
= alpha_elf_tdata (gotobj
)->got
;
3364 gp
= _bfd_get_gp_value (gotobj
);
3367 gp
= (sgot
->output_section
->vma
3368 + sgot
->output_offset
3370 _bfd_set_gp_value (gotobj
, gp
);
3375 relend
= relocs
+ input_section
->reloc_count
;
3376 for (; rel
< relend
; rel
++)
3379 reloc_howto_type
*howto
;
3380 unsigned long r_symndx
;
3381 struct alpha_elf_link_hash_entry
*h
;
3382 Elf_Internal_Sym
*sym
;
3385 bfd_reloc_status_type r
;
3387 r_type
= ELF64_R_TYPE(rel
->r_info
);
3388 if (r_type
< 0 || r_type
>= (int) R_ALPHA_max
)
3390 bfd_set_error (bfd_error_bad_value
);
3393 howto
= elf64_alpha_howto_table
+ r_type
;
3395 r_symndx
= ELF64_R_SYM(rel
->r_info
);
3397 if (info
->relocateable
)
3399 /* This is a relocateable link. We don't have to change
3400 anything, unless the reloc is against a section symbol,
3401 in which case we have to adjust according to where the
3402 section symbol winds up in the output section. */
3403 if (r_symndx
< symtab_hdr
->sh_info
)
3405 sym
= local_syms
+ r_symndx
;
3406 if (ELF_ST_TYPE(sym
->st_info
) == STT_SECTION
)
3408 sec
= local_sections
[r_symndx
];
3409 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
3416 /* This is a final link. */
3422 if (r_symndx
< symtab_hdr
->sh_info
)
3424 sym
= local_syms
+ r_symndx
;
3425 sec
= local_sections
[r_symndx
];
3426 relocation
= (sec
->output_section
->vma
3427 + sec
->output_offset
3432 h
= alpha_elf_sym_hashes (input_bfd
)[r_symndx
- symtab_hdr
->sh_info
];
3434 while (h
->root
.root
.type
== bfd_link_hash_indirect
3435 || h
->root
.root
.type
== bfd_link_hash_warning
)
3436 h
= (struct alpha_elf_link_hash_entry
*)h
->root
.root
.u
.i
.link
;
3438 if (h
->root
.root
.type
== bfd_link_hash_defined
3439 || h
->root
.root
.type
== bfd_link_hash_defweak
)
3441 sec
= h
->root
.root
.u
.def
.section
;
3444 if ((r_type
== R_ALPHA_LITERAL
3445 && elf_hash_table(info
)->dynamic_sections_created
3448 || !(h
->root
.elf_link_hash_flags
3449 & ELF_LINK_HASH_DEF_REGULAR
)))
3452 || !(h
->root
.elf_link_hash_flags
3453 & ELF_LINK_HASH_DEF_REGULAR
))
3454 && (input_section
->flags
& SEC_ALLOC
)
3455 && (r_type
== R_ALPHA_REFLONG
3456 || r_type
== R_ALPHA_REFQUAD
3457 || r_type
== R_ALPHA_LITERAL
)))
3459 /* In these cases, we don't need the relocation value.
3460 We check specially because in some obscure cases
3461 sec->output_section will be NULL. */
3465 /* FIXME: Are not these obscure cases simply bugs? Let's
3466 get something working and come back to this. */
3467 if (sec
->output_section
== NULL
)
3469 #endif /* rth_notdef */
3472 relocation
= (h
->root
.root
.u
.def
.value
3473 + sec
->output_section
->vma
3474 + sec
->output_offset
);
3477 else if (h
->root
.root
.type
== bfd_link_hash_undefweak
)
3479 else if (info
->shared
&& !info
->symbolic
)
3483 if (!((*info
->callbacks
->undefined_symbol
)
3484 (info
, h
->root
.root
.root
.string
, input_bfd
,
3485 input_section
, rel
->r_offset
)))
3490 addend
= rel
->r_addend
;
3494 case R_ALPHA_GPDISP
:
3496 bfd_byte
*p_ldah
, *p_lda
;
3498 BFD_ASSERT(gp
!= 0);
3500 relocation
= (input_section
->output_section
->vma
3501 + input_section
->output_offset
3504 p_ldah
= contents
+ rel
->r_offset
- input_section
->vma
;
3505 p_lda
= p_ldah
+ rel
->r_addend
;
3507 r
= elf64_alpha_do_reloc_gpdisp (input_bfd
, gp
- relocation
,
3512 case R_ALPHA_OP_PUSH
:
3513 case R_ALPHA_OP_STORE
:
3514 case R_ALPHA_OP_PSUB
:
3515 case R_ALPHA_OP_PRSHIFT
:
3516 /* We hate these silly beasts. */
3519 case R_ALPHA_LITERAL
:
3521 struct alpha_elf_got_entry
*gotent
;
3523 BFD_ASSERT(sgot
!= NULL
);
3524 BFD_ASSERT(gp
!= 0);
3528 gotent
= h
->got_entries
;
3529 BFD_ASSERT(gotent
!= NULL
);
3531 while (gotent
->gotobj
!= gotobj
|| gotent
->addend
!= addend
)
3532 gotent
= gotent
->next
;
3534 /* Initialize the .got entry's value. */
3535 if (!(gotent
->flags
& ALPHA_ELF_GOT_ENTRY_RELOCS_DONE
))
3537 bfd_put_64 (output_bfd
, relocation
+addend
,
3538 sgot
->contents
+ gotent
->got_offset
);
3540 /* If the symbol has been forced local, output a
3541 RELATIVE reloc, otherwise it will be handled in
3542 finish_dynamic_symbol. */
3543 if (info
->shared
&& h
->root
.dynindx
== -1)
3545 Elf_Internal_Rela outrel
;
3547 BFD_ASSERT(srelgot
!= NULL
);
3549 outrel
.r_offset
= (sgot
->output_section
->vma
3550 + sgot
->output_offset
3551 + gotent
->got_offset
);
3552 outrel
.r_info
= ELF64_R_INFO(0, R_ALPHA_RELATIVE
);
3553 outrel
.r_addend
= 0;
3555 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
,
3556 ((Elf64_External_Rela
*)
3558 + srelgot
->reloc_count
++);
3561 gotent
->flags
|= ALPHA_ELF_GOT_ENTRY_RELOCS_DONE
;
3566 gotent
= (alpha_elf_tdata(input_bfd
)->
3567 local_got_entries
[r_symndx
]);
3568 while (gotent
->addend
!= addend
)
3569 gotent
= gotent
->next
;
3571 if (!(gotent
->flags
& ALPHA_ELF_GOT_ENTRY_RELOCS_DONE
))
3573 bfd_put_64 (output_bfd
, relocation
+addend
,
3574 sgot
->contents
+ gotent
->got_offset
);
3576 /* Local got entries need RELATIVE relocs in shared
3580 Elf_Internal_Rela outrel
;
3582 BFD_ASSERT(srelgot
!= NULL
);
3584 outrel
.r_offset
= (sgot
->output_section
->vma
3585 + sgot
->output_offset
3586 + gotent
->got_offset
);
3587 outrel
.r_info
= ELF64_R_INFO(0, R_ALPHA_RELATIVE
);
3588 outrel
.r_addend
= 0;
3590 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
,
3591 ((Elf64_External_Rela
*)
3593 + srelgot
->reloc_count
++);
3596 gotent
->flags
|= ALPHA_ELF_GOT_ENTRY_RELOCS_DONE
;
3600 /* Figure the gprel relocation. */
3602 relocation
= (sgot
->output_section
->vma
3603 + sgot
->output_offset
3604 + gotent
->got_offset
);
3607 /* overflow handled by _bfd_final_link_relocate */
3610 case R_ALPHA_GPREL32
:
3611 case R_ALPHA_GPRELLOW
:
3612 BFD_ASSERT(gp
!= 0);
3616 case R_ALPHA_GPRELHIGH
:
3617 BFD_ASSERT(gp
!= 0);
3619 relocation
+= addend
;
3621 relocation
= (((bfd_signed_vma
) relocation
>> 16)
3622 + ((relocation
>> 15) & 1));
3625 case R_ALPHA_BRADDR
:
3627 /* The regular PC-relative stuff measures from the start of
3628 the instruction rather than the end. */
3632 case R_ALPHA_REFLONG
:
3633 case R_ALPHA_REFQUAD
:
3635 Elf_Internal_Rela outrel
;
3638 /* Careful here to remember RELATIVE relocations for global
3639 variables for symbolic shared objects. */
3641 if (h
&& alpha_elf_dynamic_symbol_p (&h
->root
, info
))
3643 BFD_ASSERT(h
->root
.dynindx
!= -1);
3644 outrel
.r_info
= ELF64_R_INFO(h
->root
.dynindx
, r_type
);
3645 outrel
.r_addend
= addend
;
3646 addend
= 0, relocation
= 0;
3648 else if (info
->shared
)
3650 outrel
.r_info
= ELF64_R_INFO(0, R_ALPHA_RELATIVE
);
3651 outrel
.r_addend
= 0;
3660 name
= (bfd_elf_string_from_elf_section
3661 (input_bfd
, elf_elfheader(input_bfd
)->e_shstrndx
,
3662 elf_section_data(input_section
)->rel_hdr
.sh_name
));
3663 BFD_ASSERT(name
!= NULL
);
3665 srel
= bfd_get_section_by_name (dynobj
, name
);
3666 BFD_ASSERT(srel
!= NULL
);
3671 if (elf_section_data (input_section
)->stab_info
== NULL
)
3672 outrel
.r_offset
= rel
->r_offset
;
3677 off
= (_bfd_stab_section_offset
3678 (output_bfd
, &elf_hash_table (info
)->stab_info
,
3680 &elf_section_data (input_section
)->stab_info
,
3682 if (off
== (bfd_vma
) -1)
3684 outrel
.r_offset
= off
;
3688 outrel
.r_offset
+= (input_section
->output_section
->vma
3689 + input_section
->output_offset
);
3691 memset (&outrel
, 0, sizeof outrel
);
3693 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
,
3694 ((Elf64_External_Rela
*)
3696 + srel
->reloc_count
++);
3702 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3703 contents
, rel
->r_offset
, relocation
,
3713 case bfd_reloc_overflow
:
3718 name
= h
->root
.root
.root
.string
;
3721 name
= (bfd_elf_string_from_elf_section
3722 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
3726 name
= bfd_section_name (input_bfd
, sec
);
3728 if (! ((*info
->callbacks
->reloc_overflow
)
3729 (info
, name
, howto
->name
, (bfd_vma
) 0,
3730 input_bfd
, input_section
, rel
->r_offset
)))
3736 case bfd_reloc_outofrange
:
3744 /* Finish up dynamic symbol handling. We set the contents of various
3745 dynamic sections here. */
3748 elf64_alpha_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
3750 struct bfd_link_info
*info
;
3751 struct elf_link_hash_entry
*h
;
3752 Elf_Internal_Sym
*sym
;
3754 bfd
*dynobj
= elf_hash_table(info
)->dynobj
;
3756 if (h
->plt_offset
!= MINUS_ONE
)
3758 /* Fill in the .plt entry for this symbol. */
3759 asection
*splt
, *sgot
, *srel
;
3760 Elf_Internal_Rela outrel
;
3761 bfd_vma got_addr
, plt_addr
;
3763 struct alpha_elf_got_entry
*gotent
;
3765 BFD_ASSERT (h
->dynindx
!= -1);
3767 /* The first .got entry will be updated by the .plt with the
3768 address of the target function. */
3769 gotent
= ((struct alpha_elf_link_hash_entry
*) h
)->got_entries
;
3770 BFD_ASSERT (gotent
&& gotent
->addend
== 0);
3772 splt
= bfd_get_section_by_name (dynobj
, ".plt");
3773 BFD_ASSERT (splt
!= NULL
);
3774 srel
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3775 BFD_ASSERT (srel
!= NULL
);
3776 sgot
= alpha_elf_tdata (gotent
->gotobj
)->got
;
3777 BFD_ASSERT (sgot
!= NULL
);
3779 got_addr
= (sgot
->output_section
->vma
3780 + sgot
->output_offset
3781 + gotent
->got_offset
);
3782 plt_addr
= (splt
->output_section
->vma
3783 + splt
->output_offset
3786 plt_index
= (h
->plt_offset
- PLT_HEADER_SIZE
) / PLT_ENTRY_SIZE
;
3788 /* Fill in the entry in the procedure linkage table. */
3790 unsigned insn1
, insn2
, insn3
;
3792 insn1
= PLT_ENTRY_WORD1
| ((-(h
->plt_offset
+ 4) >> 2) & 0x1fffff);
3793 insn2
= PLT_ENTRY_WORD2
;
3794 insn3
= PLT_ENTRY_WORD3
;
3796 bfd_put_32 (output_bfd
, insn1
, splt
->contents
+ h
->plt_offset
);
3797 bfd_put_32 (output_bfd
, insn2
, splt
->contents
+ h
->plt_offset
+ 4);
3798 bfd_put_32 (output_bfd
, insn3
, splt
->contents
+ h
->plt_offset
+ 8);
3801 /* Fill in the entry in the .rela.plt section. */
3802 outrel
.r_offset
= got_addr
;
3803 outrel
.r_info
= ELF64_R_INFO(h
->dynindx
, R_ALPHA_JMP_SLOT
);
3804 outrel
.r_addend
= 0;
3806 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
,
3807 ((Elf64_External_Rela
*)srel
->contents
3810 if (!(h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
))
3812 /* Mark the symbol as undefined, rather than as defined in the
3813 .plt section. Leave the value alone. */
3814 sym
->st_shndx
= SHN_UNDEF
;
3817 /* Fill in the entries in the .got. */
3818 bfd_put_64 (output_bfd
, plt_addr
, sgot
->contents
+ gotent
->got_offset
);
3820 /* Subsequent .got entries will continue to bounce through the .plt. */
3821 while ((gotent
= gotent
->next
) != NULL
)
3823 sgot
= alpha_elf_tdata(gotent
->gotobj
)->got
;
3824 BFD_ASSERT(sgot
!= NULL
);
3825 BFD_ASSERT(gotent
->addend
== 0);
3827 bfd_put_64 (output_bfd
, plt_addr
,
3828 sgot
->contents
+ gotent
->got_offset
);
3831 else if (alpha_elf_dynamic_symbol_p (h
, info
))
3833 /* Fill in the dynamic relocations for this symbol's .got entries. */
3835 Elf_Internal_Rela outrel
;
3836 struct alpha_elf_got_entry
*gotent
;
3838 srel
= bfd_get_section_by_name (dynobj
, ".rela.got");
3839 BFD_ASSERT (srel
!= NULL
);
3841 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_ALPHA_GLOB_DAT
);
3842 for (gotent
= ((struct alpha_elf_link_hash_entry
*) h
)->got_entries
;
3844 gotent
= gotent
->next
)
3846 asection
*sgot
= alpha_elf_tdata (gotent
->gotobj
)->got
;
3847 outrel
.r_offset
= (sgot
->output_section
->vma
3848 + sgot
->output_offset
3849 + gotent
->got_offset
);
3850 outrel
.r_addend
= gotent
->addend
;
3852 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
,
3853 ((Elf64_External_Rela
*)srel
->contents
3854 + srel
->reloc_count
++));
3858 /* Mark some specially defined symbols as absolute. */
3859 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3860 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
3861 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3862 sym
->st_shndx
= SHN_ABS
;
3867 /* Finish up the dynamic sections. */
3870 elf64_alpha_finish_dynamic_sections (output_bfd
, info
)
3872 struct bfd_link_info
*info
;
3877 dynobj
= elf_hash_table (info
)->dynobj
;
3878 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3880 if (elf_hash_table (info
)->dynamic_sections_created
)
3883 Elf64_External_Dyn
*dyncon
, *dynconend
;
3885 splt
= bfd_get_section_by_name (dynobj
, ".plt");
3886 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
3888 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
3889 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
3890 for (; dyncon
< dynconend
; dyncon
++)
3892 Elf_Internal_Dyn dyn
;
3896 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3911 /* My interpretation of the TIS v1.1 ELF document indicates
3912 that RELASZ should not include JMPREL. This is not what
3913 the rest of the BFD does. It is, however, what the
3914 glibc ld.so wants. Do this fixup here until we found
3915 out who is right. */
3916 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
3920 (s
->_cooked_size
? s
->_cooked_size
: s
->_raw_size
);
3925 s
= bfd_get_section_by_name (output_bfd
, name
);
3926 dyn
.d_un
.d_ptr
= (s
? s
->vma
: 0);
3930 s
= bfd_get_section_by_name (output_bfd
, name
);
3932 (s
->_cooked_size
? s
->_cooked_size
: s
->_raw_size
);
3936 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3939 /* Initialize the PLT0 entry */
3940 if (splt
->_raw_size
> 0)
3942 bfd_put_32 (output_bfd
, PLT_HEADER_WORD1
, splt
->contents
);
3943 bfd_put_32 (output_bfd
, PLT_HEADER_WORD2
, splt
->contents
+ 4);
3944 bfd_put_32 (output_bfd
, PLT_HEADER_WORD3
, splt
->contents
+ 8);
3945 bfd_put_32 (output_bfd
, PLT_HEADER_WORD4
, splt
->contents
+ 12);
3947 /* The next two words will be filled in by ld.so */
3948 bfd_put_64 (output_bfd
, 0, splt
->contents
+ 16);
3949 bfd_put_64 (output_bfd
, 0, splt
->contents
+ 24);
3951 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
3960 Elf_Internal_Sym sym
;
3962 /* Set up the section symbols for the output sections. */
3964 sdynsym
= bfd_get_section_by_name (dynobj
, ".dynsym");
3965 BFD_ASSERT (sdynsym
!= NULL
);
3969 sym
.st_info
= ELF_ST_INFO (STB_LOCAL
, STT_SECTION
);
3972 for (s
= output_bfd
->sections
; s
!= NULL
; s
= s
->next
)
3976 sym
.st_value
= s
->vma
;
3978 indx
= elf_section_data (s
)->this_idx
;
3979 BFD_ASSERT (indx
> 0);
3980 sym
.st_shndx
= indx
;
3982 bfd_elf64_swap_symbol_out (output_bfd
, &sym
,
3983 (PTR
) (((Elf64_External_Sym
*)
3985 + elf_section_data (s
)->dynindx
));
3988 /* Set the sh_info field of the output .dynsym section to the
3989 index of the first global symbol. */
3990 elf_section_data (sdynsym
->output_section
)->this_hdr
.sh_info
=
3991 bfd_count_sections (output_bfd
) + 1;
3997 /* We need to use a special link routine to handle the .reginfo and
3998 the .mdebug sections. We need to merge all instances of these
3999 sections together, not write them all out sequentially. */
4002 elf64_alpha_final_link (abfd
, info
)
4004 struct bfd_link_info
*info
;
4007 struct bfd_link_order
*p
;
4008 asection
*reginfo_sec
, *mdebug_sec
, *gptab_data_sec
, *gptab_bss_sec
;
4009 struct ecoff_debug_info debug
;
4010 const struct ecoff_debug_swap
*swap
4011 = get_elf_backend_data (abfd
)->elf_backend_ecoff_debug_swap
;
4012 HDRR
*symhdr
= &debug
.symbolic_header
;
4013 PTR mdebug_handle
= NULL
;
4015 /* Go through the sections and collect the .reginfo and .mdebug
4019 gptab_data_sec
= NULL
;
4020 gptab_bss_sec
= NULL
;
4021 for (o
= abfd
->sections
; o
!= (asection
*) NULL
; o
= o
->next
)
4023 #ifdef ERIC_neverdef
4024 if (strcmp (o
->name
, ".reginfo") == 0)
4026 memset (®info
, 0, sizeof reginfo
);
4028 /* We have found the .reginfo section in the output file.
4029 Look through all the link_orders comprising it and merge
4030 the information together. */
4031 for (p
= o
->link_order_head
;
4032 p
!= (struct bfd_link_order
*) NULL
;
4035 asection
*input_section
;
4037 Elf64_External_RegInfo ext
;
4040 if (p
->type
!= bfd_indirect_link_order
)
4042 if (p
->type
== bfd_fill_link_order
)
4047 input_section
= p
->u
.indirect
.section
;
4048 input_bfd
= input_section
->owner
;
4050 /* The linker emulation code has probably clobbered the
4051 size to be zero bytes. */
4052 if (input_section
->_raw_size
== 0)
4053 input_section
->_raw_size
= sizeof (Elf64_External_RegInfo
);
4055 if (! bfd_get_section_contents (input_bfd
, input_section
,
4061 bfd_alpha_elf64_swap_reginfo_in (input_bfd
, &ext
, &sub
);
4063 reginfo
.ri_gprmask
|= sub
.ri_gprmask
;
4064 reginfo
.ri_cprmask
[0] |= sub
.ri_cprmask
[0];
4065 reginfo
.ri_cprmask
[1] |= sub
.ri_cprmask
[1];
4066 reginfo
.ri_cprmask
[2] |= sub
.ri_cprmask
[2];
4067 reginfo
.ri_cprmask
[3] |= sub
.ri_cprmask
[3];
4069 /* ri_gp_value is set by the function
4070 alpha_elf_section_processing when the section is
4071 finally written out. */
4073 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4074 elf_link_input_bfd ignores this section. */
4075 input_section
->flags
&=~ SEC_HAS_CONTENTS
;
4078 /* Force the section size to the value we want. */
4079 o
->_raw_size
= sizeof (Elf64_External_RegInfo
);
4081 /* Skip this section later on (I don't think this currently
4082 matters, but someday it might). */
4083 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4089 if (strcmp (o
->name
, ".mdebug") == 0)
4091 struct extsym_info einfo
;
4093 /* We have found the .mdebug section in the output file.
4094 Look through all the link_orders comprising it and merge
4095 the information together. */
4096 symhdr
->magic
= swap
->sym_magic
;
4097 /* FIXME: What should the version stamp be? */
4099 symhdr
->ilineMax
= 0;
4103 symhdr
->isymMax
= 0;
4104 symhdr
->ioptMax
= 0;
4105 symhdr
->iauxMax
= 0;
4107 symhdr
->issExtMax
= 0;
4110 symhdr
->iextMax
= 0;
4112 /* We accumulate the debugging information itself in the
4113 debug_info structure. */
4115 debug
.external_dnr
= NULL
;
4116 debug
.external_pdr
= NULL
;
4117 debug
.external_sym
= NULL
;
4118 debug
.external_opt
= NULL
;
4119 debug
.external_aux
= NULL
;
4121 debug
.ssext
= debug
.ssext_end
= NULL
;
4122 debug
.external_fdr
= NULL
;
4123 debug
.external_rfd
= NULL
;
4124 debug
.external_ext
= debug
.external_ext_end
= NULL
;
4126 mdebug_handle
= bfd_ecoff_debug_init (abfd
, &debug
, swap
, info
);
4127 if (mdebug_handle
== (PTR
) NULL
)
4136 static const char * const name
[] =
4138 ".text", ".init", ".fini", ".data",
4139 ".rodata", ".sdata", ".sbss", ".bss"
4141 static const int sc
[] = { scText
, scInit
, scFini
, scData
,
4142 scRData
, scSData
, scSBss
, scBss
};
4145 esym
.cobol_main
= 0;
4149 esym
.asym
.iss
= issNil
;
4150 esym
.asym
.st
= stLocal
;
4151 esym
.asym
.reserved
= 0;
4152 esym
.asym
.index
= indexNil
;
4153 for (i
= 0; i
< 8; i
++)
4155 esym
.asym
.sc
= sc
[i
];
4156 s
= bfd_get_section_by_name (abfd
, name
[i
]);
4159 esym
.asym
.value
= s
->vma
;
4160 last
= s
->vma
+ s
->_raw_size
;
4163 esym
.asym
.value
= last
;
4165 if (! bfd_ecoff_debug_one_external (abfd
, &debug
, swap
,
4171 for (p
= o
->link_order_head
;
4172 p
!= (struct bfd_link_order
*) NULL
;
4175 asection
*input_section
;
4177 const struct ecoff_debug_swap
*input_swap
;
4178 struct ecoff_debug_info input_debug
;
4182 if (p
->type
!= bfd_indirect_link_order
)
4184 if (p
->type
== bfd_fill_link_order
)
4189 input_section
= p
->u
.indirect
.section
;
4190 input_bfd
= input_section
->owner
;
4192 if (bfd_get_flavour (input_bfd
) != bfd_target_elf_flavour
4193 || (get_elf_backend_data (input_bfd
)
4194 ->elf_backend_ecoff_debug_swap
) == NULL
)
4196 /* I don't know what a non ALPHA ELF bfd would be
4197 doing with a .mdebug section, but I don't really
4198 want to deal with it. */
4202 input_swap
= (get_elf_backend_data (input_bfd
)
4203 ->elf_backend_ecoff_debug_swap
);
4205 BFD_ASSERT (p
->size
== input_section
->_raw_size
);
4207 /* The ECOFF linking code expects that we have already
4208 read in the debugging information and set up an
4209 ecoff_debug_info structure, so we do that now. */
4210 if (!elf64_alpha_read_ecoff_info (input_bfd
, input_section
,
4214 if (! (bfd_ecoff_debug_accumulate
4215 (mdebug_handle
, abfd
, &debug
, swap
, input_bfd
,
4216 &input_debug
, input_swap
, info
)))
4219 /* Loop through the external symbols. For each one with
4220 interesting information, try to find the symbol in
4221 the linker global hash table and save the information
4222 for the output external symbols. */
4223 eraw_src
= input_debug
.external_ext
;
4224 eraw_end
= (eraw_src
4225 + (input_debug
.symbolic_header
.iextMax
4226 * input_swap
->external_ext_size
));
4228 eraw_src
< eraw_end
;
4229 eraw_src
+= input_swap
->external_ext_size
)
4233 struct alpha_elf_link_hash_entry
*h
;
4235 (*input_swap
->swap_ext_in
) (input_bfd
, (PTR
) eraw_src
, &ext
);
4236 if (ext
.asym
.sc
== scNil
4237 || ext
.asym
.sc
== scUndefined
4238 || ext
.asym
.sc
== scSUndefined
)
4241 name
= input_debug
.ssext
+ ext
.asym
.iss
;
4242 h
= alpha_elf_link_hash_lookup (alpha_elf_hash_table (info
),
4243 name
, false, false, true);
4244 if (h
== NULL
|| h
->esym
.ifd
!= -2)
4250 < input_debug
.symbolic_header
.ifdMax
);
4251 ext
.ifd
= input_debug
.ifdmap
[ext
.ifd
];
4257 /* Free up the information we just read. */
4258 free (input_debug
.line
);
4259 free (input_debug
.external_dnr
);
4260 free (input_debug
.external_pdr
);
4261 free (input_debug
.external_sym
);
4262 free (input_debug
.external_opt
);
4263 free (input_debug
.external_aux
);
4264 free (input_debug
.ss
);
4265 free (input_debug
.ssext
);
4266 free (input_debug
.external_fdr
);
4267 free (input_debug
.external_rfd
);
4268 free (input_debug
.external_ext
);
4270 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4271 elf_link_input_bfd ignores this section. */
4272 input_section
->flags
&=~ SEC_HAS_CONTENTS
;
4275 #ifdef ERIC_neverdef
4278 /* Create .rtproc section. */
4279 rtproc_sec
= bfd_get_section_by_name (abfd
, ".rtproc");
4280 if (rtproc_sec
== NULL
)
4282 flagword flags
= (SEC_HAS_CONTENTS
4284 | SEC_LINKER_CREATED
4287 rtproc_sec
= bfd_make_section (abfd
, ".rtproc");
4288 if (rtproc_sec
== NULL
4289 || ! bfd_set_section_flags (abfd
, rtproc_sec
, flags
)
4290 || ! bfd_set_section_alignment (abfd
, rtproc_sec
, 12))
4294 if (! alpha_elf_create_procedure_table (mdebug_handle
, abfd
,
4295 info
, rtproc_sec
, &debug
))
4301 /* Build the external symbol information. */
4304 einfo
.debug
= &debug
;
4306 einfo
.failed
= false;
4307 elf_link_hash_traverse (elf_hash_table (info
),
4308 elf64_alpha_output_extsym
,
4313 /* Set the size of the .mdebug section. */
4314 o
->_raw_size
= bfd_ecoff_debug_size (abfd
, &debug
, swap
);
4316 /* Skip this section later on (I don't think this currently
4317 matters, but someday it might). */
4318 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4323 #ifdef ERIC_neverdef
4324 if (strncmp (o
->name
, ".gptab.", sizeof ".gptab." - 1) == 0)
4326 const char *subname
;
4329 Elf64_External_gptab
*ext_tab
;
4332 /* The .gptab.sdata and .gptab.sbss sections hold
4333 information describing how the small data area would
4334 change depending upon the -G switch. These sections
4335 not used in executables files. */
4336 if (! info
->relocateable
)
4340 for (p
= o
->link_order_head
;
4341 p
!= (struct bfd_link_order
*) NULL
;
4344 asection
*input_section
;
4346 if (p
->type
!= bfd_indirect_link_order
)
4348 if (p
->type
== bfd_fill_link_order
)
4353 input_section
= p
->u
.indirect
.section
;
4355 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4356 elf_link_input_bfd ignores this section. */
4357 input_section
->flags
&=~ SEC_HAS_CONTENTS
;
4360 /* Skip this section later on (I don't think this
4361 currently matters, but someday it might). */
4362 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4364 /* Really remove the section. */
4365 for (secpp
= &abfd
->sections
;
4367 secpp
= &(*secpp
)->next
)
4369 *secpp
= (*secpp
)->next
;
4370 --abfd
->section_count
;
4375 /* There is one gptab for initialized data, and one for
4376 uninitialized data. */
4377 if (strcmp (o
->name
, ".gptab.sdata") == 0)
4379 else if (strcmp (o
->name
, ".gptab.sbss") == 0)
4383 (*_bfd_error_handler
)
4384 (_("%s: illegal section name `%s'"),
4385 bfd_get_filename (abfd
), o
->name
);
4386 bfd_set_error (bfd_error_nonrepresentable_section
);
4390 /* The linker script always combines .gptab.data and
4391 .gptab.sdata into .gptab.sdata, and likewise for
4392 .gptab.bss and .gptab.sbss. It is possible that there is
4393 no .sdata or .sbss section in the output file, in which
4394 case we must change the name of the output section. */
4395 subname
= o
->name
+ sizeof ".gptab" - 1;
4396 if (bfd_get_section_by_name (abfd
, subname
) == NULL
)
4398 if (o
== gptab_data_sec
)
4399 o
->name
= ".gptab.data";
4401 o
->name
= ".gptab.bss";
4402 subname
= o
->name
+ sizeof ".gptab" - 1;
4403 BFD_ASSERT (bfd_get_section_by_name (abfd
, subname
) != NULL
);
4406 /* Set up the first entry. */
4408 tab
= (Elf64_gptab
*) bfd_malloc (c
* sizeof (Elf64_gptab
));
4411 tab
[0].gt_header
.gt_current_g_value
= elf_gp_size (abfd
);
4412 tab
[0].gt_header
.gt_unused
= 0;
4414 /* Combine the input sections. */
4415 for (p
= o
->link_order_head
;
4416 p
!= (struct bfd_link_order
*) NULL
;
4419 asection
*input_section
;
4423 bfd_size_type gpentry
;
4425 if (p
->type
!= bfd_indirect_link_order
)
4427 if (p
->type
== bfd_fill_link_order
)
4432 input_section
= p
->u
.indirect
.section
;
4433 input_bfd
= input_section
->owner
;
4435 /* Combine the gptab entries for this input section one
4436 by one. We know that the input gptab entries are
4437 sorted by ascending -G value. */
4438 size
= bfd_section_size (input_bfd
, input_section
);
4440 for (gpentry
= sizeof (Elf64_External_gptab
);
4442 gpentry
+= sizeof (Elf64_External_gptab
))
4444 Elf64_External_gptab ext_gptab
;
4445 Elf64_gptab int_gptab
;
4451 if (! (bfd_get_section_contents
4452 (input_bfd
, input_section
, (PTR
) &ext_gptab
,
4453 gpentry
, sizeof (Elf64_External_gptab
))))
4459 bfd_alpha_elf64_swap_gptab_in (input_bfd
, &ext_gptab
,
4461 val
= int_gptab
.gt_entry
.gt_g_value
;
4462 add
= int_gptab
.gt_entry
.gt_bytes
- last
;
4465 for (look
= 1; look
< c
; look
++)
4467 if (tab
[look
].gt_entry
.gt_g_value
>= val
)
4468 tab
[look
].gt_entry
.gt_bytes
+= add
;
4470 if (tab
[look
].gt_entry
.gt_g_value
== val
)
4476 Elf64_gptab
*new_tab
;
4479 /* We need a new table entry. */
4480 new_tab
= ((Elf64_gptab
*)
4481 bfd_realloc ((PTR
) tab
,
4482 (c
+ 1) * sizeof (Elf64_gptab
)));
4483 if (new_tab
== NULL
)
4489 tab
[c
].gt_entry
.gt_g_value
= val
;
4490 tab
[c
].gt_entry
.gt_bytes
= add
;
4492 /* Merge in the size for the next smallest -G
4493 value, since that will be implied by this new
4496 for (look
= 1; look
< c
; look
++)
4498 if (tab
[look
].gt_entry
.gt_g_value
< val
4500 || (tab
[look
].gt_entry
.gt_g_value
4501 > tab
[max
].gt_entry
.gt_g_value
)))
4505 tab
[c
].gt_entry
.gt_bytes
+=
4506 tab
[max
].gt_entry
.gt_bytes
;
4511 last
= int_gptab
.gt_entry
.gt_bytes
;
4514 /* Hack: reset the SEC_HAS_CONTENTS flag so that
4515 elf_link_input_bfd ignores this section. */
4516 input_section
->flags
&=~ SEC_HAS_CONTENTS
;
4519 /* The table must be sorted by -G value. */
4521 qsort (tab
+ 1, c
- 1, sizeof (tab
[0]), gptab_compare
);
4523 /* Swap out the table. */
4524 ext_tab
= ((Elf64_External_gptab
*)
4525 bfd_alloc (abfd
, c
* sizeof (Elf64_External_gptab
)));
4526 if (ext_tab
== NULL
)
4532 for (i
= 0; i
< c
; i
++)
4533 bfd_alpha_elf64_swap_gptab_out (abfd
, tab
+ i
, ext_tab
+ i
);
4536 o
->_raw_size
= c
* sizeof (Elf64_External_gptab
);
4537 o
->contents
= (bfd_byte
*) ext_tab
;
4539 /* Skip this section later on (I don't think this currently
4540 matters, but someday it might). */
4541 o
->link_order_head
= (struct bfd_link_order
*) NULL
;
4547 /* Invoke the regular ELF backend linker to do all the work. */
4548 if (! bfd_elf64_bfd_final_link (abfd
, info
))
4551 /* Now write out the computed sections. */
4553 /* The .got subsections... */
4555 bfd
*i
, *dynobj
= elf_hash_table(info
)->dynobj
;
4556 for (i
= alpha_elf_hash_table(info
)->got_list
;
4558 i
= alpha_elf_tdata(i
)->got_link_next
)
4562 /* elf_bfd_final_link already did everything in dynobj. */
4566 sgot
= alpha_elf_tdata(i
)->got
;
4567 if (! bfd_set_section_contents (abfd
, sgot
->output_section
,
4568 sgot
->contents
, sgot
->output_offset
,
4574 #ifdef ERIC_neverdef
4575 if (reginfo_sec
!= (asection
*) NULL
)
4577 Elf64_External_RegInfo ext
;
4579 bfd_alpha_elf64_swap_reginfo_out (abfd
, ®info
, &ext
);
4580 if (! bfd_set_section_contents (abfd
, reginfo_sec
, (PTR
) &ext
,
4581 (file_ptr
) 0, sizeof ext
))
4586 if (mdebug_sec
!= (asection
*) NULL
)
4588 BFD_ASSERT (abfd
->output_has_begun
);
4589 if (! bfd_ecoff_write_accumulated_debug (mdebug_handle
, abfd
, &debug
,
4591 mdebug_sec
->filepos
))
4594 bfd_ecoff_debug_free (mdebug_handle
, abfd
, &debug
, swap
, info
);
4597 if (gptab_data_sec
!= (asection
*) NULL
)
4599 if (! bfd_set_section_contents (abfd
, gptab_data_sec
,
4600 gptab_data_sec
->contents
,
4602 gptab_data_sec
->_raw_size
))
4606 if (gptab_bss_sec
!= (asection
*) NULL
)
4608 if (! bfd_set_section_contents (abfd
, gptab_bss_sec
,
4609 gptab_bss_sec
->contents
,
4611 gptab_bss_sec
->_raw_size
))
4618 /* ECOFF swapping routines. These are used when dealing with the
4619 .mdebug section, which is in the ECOFF debugging format. Copied
4620 from elf32-mips.c. */
4621 static const struct ecoff_debug_swap
4622 elf64_alpha_ecoff_debug_swap
=
4624 /* Symbol table magic number. */
4626 /* Alignment of debugging information. E.g., 4. */
4628 /* Sizes of external symbolic information. */
4629 sizeof (struct hdr_ext
),
4630 sizeof (struct dnr_ext
),
4631 sizeof (struct pdr_ext
),
4632 sizeof (struct sym_ext
),
4633 sizeof (struct opt_ext
),
4634 sizeof (struct fdr_ext
),
4635 sizeof (struct rfd_ext
),
4636 sizeof (struct ext_ext
),
4637 /* Functions to swap in external symbolic data. */
4646 _bfd_ecoff_swap_tir_in
,
4647 _bfd_ecoff_swap_rndx_in
,
4648 /* Functions to swap out external symbolic data. */
4657 _bfd_ecoff_swap_tir_out
,
4658 _bfd_ecoff_swap_rndx_out
,
4659 /* Function to read in symbolic data. */
4660 elf64_alpha_read_ecoff_info
4663 #define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
4664 #define TARGET_LITTLE_NAME "elf64-alpha"
4665 #define ELF_ARCH bfd_arch_alpha
4666 #define ELF_MACHINE_CODE EM_ALPHA
4667 #define ELF_MAXPAGESIZE 0x10000
4669 #define bfd_elf64_bfd_link_hash_table_create \
4670 elf64_alpha_bfd_link_hash_table_create
4672 #define bfd_elf64_bfd_reloc_type_lookup \
4673 elf64_alpha_bfd_reloc_type_lookup
4674 #define elf_info_to_howto \
4675 elf64_alpha_info_to_howto
4677 #define bfd_elf64_mkobject \
4678 elf64_alpha_mkobject
4679 #define elf_backend_object_p \
4680 elf64_alpha_object_p
4682 #define elf_backend_section_from_shdr \
4683 elf64_alpha_section_from_shdr
4684 #define elf_backend_fake_sections \
4685 elf64_alpha_fake_sections
4686 #define elf_backend_additional_program_headers \
4687 elf64_alpha_additional_program_headers
4689 #define bfd_elf64_bfd_is_local_label_name \
4690 elf64_alpha_is_local_label_name
4691 #define bfd_elf64_find_nearest_line \
4692 elf64_alpha_find_nearest_line
4693 #define bfd_elf64_bfd_relax_section \
4694 elf64_alpha_relax_section
4696 #define elf_backend_add_symbol_hook \
4697 elf64_alpha_add_symbol_hook
4698 #define elf_backend_check_relocs \
4699 elf64_alpha_check_relocs
4700 #define elf_backend_create_dynamic_sections \
4701 elf64_alpha_create_dynamic_sections
4702 #define elf_backend_adjust_dynamic_symbol \
4703 elf64_alpha_adjust_dynamic_symbol
4704 #define elf_backend_always_size_sections \
4705 elf64_alpha_always_size_sections
4706 #define elf_backend_size_dynamic_sections \
4707 elf64_alpha_size_dynamic_sections
4708 #define elf_backend_relocate_section \
4709 elf64_alpha_relocate_section
4710 #define elf_backend_finish_dynamic_symbol \
4711 elf64_alpha_finish_dynamic_symbol
4712 #define elf_backend_finish_dynamic_sections \
4713 elf64_alpha_finish_dynamic_sections
4714 #define bfd_elf64_bfd_final_link \
4715 elf64_alpha_final_link
4717 #define elf_backend_ecoff_debug_swap \
4718 &elf64_alpha_ecoff_debug_swap
4721 * A few constants that determine how the .plt section is set up.
4723 #define elf_backend_want_got_plt 0
4724 #define elf_backend_plt_readonly 0
4725 #define elf_backend_want_plt_sym 1
4727 #include "elf64-target.h"