1 /* BFD backend for SunOS binaries.
2 Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
3 Written by Cygnus Support.
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 #define TARGETNAME "a.out-sunos-big"
22 #define MY(OP) CAT(sunos_big_,OP)
28 /* Static routines defined in this file. */
30 static boolean sunos_read_dynamic_info
PARAMS ((bfd
*));
31 static long sunos_get_dynamic_symtab_upper_bound
PARAMS ((bfd
*));
32 static boolean sunos_slurp_dynamic_symtab
PARAMS ((bfd
*));
33 static long sunos_canonicalize_dynamic_symtab
PARAMS ((bfd
*, asymbol
**));
34 static long sunos_get_dynamic_reloc_upper_bound
PARAMS ((bfd
*));
35 static long sunos_canonicalize_dynamic_reloc
36 PARAMS ((bfd
*, arelent
**, asymbol
**));
37 static struct bfd_hash_entry
*sunos_link_hash_newfunc
38 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
39 static struct bfd_link_hash_table
*sunos_link_hash_table_create
41 static boolean sunos_create_dynamic_sections
42 PARAMS ((bfd
*, struct bfd_link_info
*, boolean
));
43 static boolean sunos_add_dynamic_symbols
44 PARAMS ((bfd
*, struct bfd_link_info
*, struct external_nlist
**,
45 bfd_size_type
*, char **));
46 static boolean sunos_add_one_symbol
47 PARAMS ((struct bfd_link_info
*, bfd
*, const char *, flagword
, asection
*,
48 bfd_vma
, const char *, boolean
, boolean
,
49 struct bfd_link_hash_entry
**));
50 static boolean sunos_scan_relocs
51 PARAMS ((struct bfd_link_info
*, bfd
*, asection
*, bfd_size_type
));
52 static boolean sunos_scan_std_relocs
53 PARAMS ((struct bfd_link_info
*, bfd
*, asection
*,
54 const struct reloc_std_external
*, bfd_size_type
));
55 static boolean sunos_scan_ext_relocs
56 PARAMS ((struct bfd_link_info
*, bfd
*, asection
*,
57 const struct reloc_ext_external
*, bfd_size_type
));
58 static boolean sunos_link_dynamic_object
59 PARAMS ((struct bfd_link_info
*, bfd
*));
60 static boolean sunos_write_dynamic_symbol
61 PARAMS ((bfd
*, struct bfd_link_info
*, struct aout_link_hash_entry
*));
62 static boolean sunos_check_dynamic_reloc
63 PARAMS ((struct bfd_link_info
*, bfd
*, asection
*,
64 struct aout_link_hash_entry
*, PTR
, bfd_byte
*, boolean
*,
66 static boolean sunos_finish_dynamic_link
67 PARAMS ((bfd
*, struct bfd_link_info
*));
69 #define MY_get_dynamic_symtab_upper_bound sunos_get_dynamic_symtab_upper_bound
70 #define MY_canonicalize_dynamic_symtab sunos_canonicalize_dynamic_symtab
71 #define MY_get_dynamic_reloc_upper_bound sunos_get_dynamic_reloc_upper_bound
72 #define MY_canonicalize_dynamic_reloc sunos_canonicalize_dynamic_reloc
73 #define MY_bfd_link_hash_table_create sunos_link_hash_table_create
74 #define MY_add_dynamic_symbols sunos_add_dynamic_symbols
75 #define MY_add_one_symbol sunos_add_one_symbol
76 #define MY_link_dynamic_object sunos_link_dynamic_object
77 #define MY_write_dynamic_symbol sunos_write_dynamic_symbol
78 #define MY_check_dynamic_reloc sunos_check_dynamic_reloc
79 #define MY_finish_dynamic_link sunos_finish_dynamic_link
81 /* Include the usual a.out support. */
84 /* SunOS shared library support. We store a pointer to this structure
85 in obj_aout_dynamic_info (abfd). */
87 struct sunos_dynamic_info
89 /* Whether we found any dynamic information. */
91 /* Dynamic information. */
92 struct internal_sun4_dynamic_link dyninfo
;
93 /* Number of dynamic symbols. */
94 unsigned long dynsym_count
;
95 /* Read in nlists for dynamic symbols. */
96 struct external_nlist
*dynsym
;
97 /* asymbol structures for dynamic symbols. */
98 aout_symbol_type
*canonical_dynsym
;
99 /* Read in dynamic string table. */
101 /* Number of dynamic relocs. */
102 unsigned long dynrel_count
;
103 /* Read in dynamic relocs. This may be reloc_std_external or
104 reloc_ext_external. */
106 /* arelent structures for dynamic relocs. */
107 arelent
*canonical_dynrel
;
110 /* The hash table of dynamic symbols is composed of two word entries.
111 See include/aout/sun4.h for details. */
113 #define HASH_ENTRY_SIZE (2 * BYTES_IN_WORD)
115 /* Read in the basic dynamic information. This locates the __DYNAMIC
116 structure and uses it to find the dynamic_link structure. It
117 creates and saves a sunos_dynamic_info structure. If it can't find
118 __DYNAMIC, it sets the valid field of the sunos_dynamic_info
119 structure to false to avoid doing this work again. */
122 sunos_read_dynamic_info (abfd
)
125 struct sunos_dynamic_info
*info
;
128 struct external_sun4_dynamic dyninfo
;
129 unsigned long dynver
;
130 struct external_sun4_dynamic_link linkinfo
;
132 if (obj_aout_dynamic_info (abfd
) != (PTR
) NULL
)
135 if ((abfd
->flags
& DYNAMIC
) == 0)
137 bfd_set_error (bfd_error_invalid_operation
);
141 info
= ((struct sunos_dynamic_info
*)
142 bfd_zalloc (abfd
, sizeof (struct sunos_dynamic_info
)));
145 bfd_set_error (bfd_error_no_memory
);
151 info
->canonical_dynsym
= NULL
;
153 info
->canonical_dynrel
= NULL
;
154 obj_aout_dynamic_info (abfd
) = (PTR
) info
;
156 /* This code used to look for the __DYNAMIC symbol to locate the dynamic
158 However this inhibits recovering the dynamic symbols from a
159 stripped object file, so blindly assume that the dynamic linking
160 information is located at the start of the data section.
161 We could verify this assumption later by looking through the dynamic
162 symbols for the __DYNAMIC symbol. */
163 if ((abfd
->flags
& DYNAMIC
) == 0)
165 if (! bfd_get_section_contents (abfd
, obj_datasec (abfd
), (PTR
) &dyninfo
,
166 (file_ptr
) 0, sizeof dyninfo
))
169 dynver
= GET_WORD (abfd
, dyninfo
.ld_version
);
170 if (dynver
!= 2 && dynver
!= 3)
173 dynoff
= GET_WORD (abfd
, dyninfo
.ld
);
175 /* dynoff is a virtual address. It is probably always in the .data
176 section, but this code should work even if it moves. */
177 if (dynoff
< bfd_get_section_vma (abfd
, obj_datasec (abfd
)))
178 dynsec
= obj_textsec (abfd
);
180 dynsec
= obj_datasec (abfd
);
181 dynoff
-= bfd_get_section_vma (abfd
, dynsec
);
182 if (dynoff
> bfd_section_size (abfd
, dynsec
))
185 /* This executable appears to be dynamically linked in a way that we
187 if (! bfd_get_section_contents (abfd
, dynsec
, (PTR
) &linkinfo
, dynoff
,
188 (bfd_size_type
) sizeof linkinfo
))
191 /* Swap in the dynamic link information. */
192 info
->dyninfo
.ld_loaded
= GET_WORD (abfd
, linkinfo
.ld_loaded
);
193 info
->dyninfo
.ld_need
= GET_WORD (abfd
, linkinfo
.ld_need
);
194 info
->dyninfo
.ld_rules
= GET_WORD (abfd
, linkinfo
.ld_rules
);
195 info
->dyninfo
.ld_got
= GET_WORD (abfd
, linkinfo
.ld_got
);
196 info
->dyninfo
.ld_plt
= GET_WORD (abfd
, linkinfo
.ld_plt
);
197 info
->dyninfo
.ld_rel
= GET_WORD (abfd
, linkinfo
.ld_rel
);
198 info
->dyninfo
.ld_hash
= GET_WORD (abfd
, linkinfo
.ld_hash
);
199 info
->dyninfo
.ld_stab
= GET_WORD (abfd
, linkinfo
.ld_stab
);
200 info
->dyninfo
.ld_stab_hash
= GET_WORD (abfd
, linkinfo
.ld_stab_hash
);
201 info
->dyninfo
.ld_buckets
= GET_WORD (abfd
, linkinfo
.ld_buckets
);
202 info
->dyninfo
.ld_symbols
= GET_WORD (abfd
, linkinfo
.ld_symbols
);
203 info
->dyninfo
.ld_symb_size
= GET_WORD (abfd
, linkinfo
.ld_symb_size
);
204 info
->dyninfo
.ld_text
= GET_WORD (abfd
, linkinfo
.ld_text
);
205 info
->dyninfo
.ld_plt_sz
= GET_WORD (abfd
, linkinfo
.ld_plt_sz
);
207 /* Reportedly the addresses need to be offset by the size of the
208 exec header in an NMAGIC file. */
209 if (adata (abfd
).magic
== n_magic
)
211 unsigned long exec_bytes_size
= adata (abfd
).exec_bytes_size
;
213 info
->dyninfo
.ld_need
+= exec_bytes_size
;
214 info
->dyninfo
.ld_rules
+= exec_bytes_size
;
215 info
->dyninfo
.ld_rel
+= exec_bytes_size
;
216 info
->dyninfo
.ld_hash
+= exec_bytes_size
;
217 info
->dyninfo
.ld_stab
+= exec_bytes_size
;
218 info
->dyninfo
.ld_symbols
+= exec_bytes_size
;
221 /* The only way to get the size of the symbol information appears to
222 be to determine the distance between it and the string table. */
223 info
->dynsym_count
= ((info
->dyninfo
.ld_symbols
- info
->dyninfo
.ld_stab
)
224 / EXTERNAL_NLIST_SIZE
);
225 BFD_ASSERT (info
->dynsym_count
* EXTERNAL_NLIST_SIZE
226 == (unsigned long) (info
->dyninfo
.ld_symbols
227 - info
->dyninfo
.ld_stab
));
229 /* Similarly, the relocs end at the hash table. */
230 info
->dynrel_count
= ((info
->dyninfo
.ld_hash
- info
->dyninfo
.ld_rel
)
231 / obj_reloc_entry_size (abfd
));
232 BFD_ASSERT (info
->dynrel_count
* obj_reloc_entry_size (abfd
)
233 == (unsigned long) (info
->dyninfo
.ld_hash
234 - info
->dyninfo
.ld_rel
));
241 /* Return the amount of memory required for the dynamic symbols. */
244 sunos_get_dynamic_symtab_upper_bound (abfd
)
247 struct sunos_dynamic_info
*info
;
249 if (! sunos_read_dynamic_info (abfd
))
252 info
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
255 bfd_set_error (bfd_error_no_symbols
);
259 return (info
->dynsym_count
+ 1) * sizeof (asymbol
*);
262 /* Read the external dynamic symbols. */
265 sunos_slurp_dynamic_symtab (abfd
)
268 struct sunos_dynamic_info
*info
;
270 /* Get the general dynamic information. */
271 if (obj_aout_dynamic_info (abfd
) == NULL
)
273 if (! sunos_read_dynamic_info (abfd
))
277 info
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
280 bfd_set_error (bfd_error_no_symbols
);
284 /* Get the dynamic nlist structures. */
285 if (info
->dynsym
== (struct external_nlist
*) NULL
)
287 info
->dynsym
= ((struct external_nlist
*)
290 * EXTERNAL_NLIST_SIZE
)));
291 if (info
->dynsym
== NULL
&& info
->dynsym_count
!= 0)
293 bfd_set_error (bfd_error_no_memory
);
296 if (bfd_seek (abfd
, info
->dyninfo
.ld_stab
, SEEK_SET
) != 0
297 || (bfd_read ((PTR
) info
->dynsym
, info
->dynsym_count
,
298 EXTERNAL_NLIST_SIZE
, abfd
)
299 != info
->dynsym_count
* EXTERNAL_NLIST_SIZE
))
301 if (info
->dynsym
!= NULL
)
303 bfd_release (abfd
, info
->dynsym
);
310 /* Get the dynamic strings. */
311 if (info
->dynstr
== (char *) NULL
)
313 info
->dynstr
= (char *) bfd_alloc (abfd
, info
->dyninfo
.ld_symb_size
);
314 if (info
->dynstr
== NULL
&& info
->dyninfo
.ld_symb_size
!= 0)
316 bfd_set_error (bfd_error_no_memory
);
319 if (bfd_seek (abfd
, info
->dyninfo
.ld_symbols
, SEEK_SET
) != 0
320 || (bfd_read ((PTR
) info
->dynstr
, 1, info
->dyninfo
.ld_symb_size
,
322 != info
->dyninfo
.ld_symb_size
))
324 if (info
->dynstr
!= NULL
)
326 bfd_release (abfd
, info
->dynstr
);
336 /* Read in the dynamic symbols. */
339 sunos_canonicalize_dynamic_symtab (abfd
, storage
)
343 struct sunos_dynamic_info
*info
;
346 if (! sunos_slurp_dynamic_symtab (abfd
))
349 info
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
351 #ifdef CHECK_DYNAMIC_HASH
352 /* Check my understanding of the dynamic hash table by making sure
353 that each symbol can be located in the hash table. */
355 bfd_size_type table_size
;
359 if (info
->dyninfo
.ld_buckets
> info
->dynsym_count
)
361 table_size
= info
->dyninfo
.ld_stab
- info
->dyninfo
.ld_hash
;
362 table
= (bfd_byte
*) malloc (table_size
);
363 if (table
== NULL
&& table_size
!= 0)
365 if (bfd_seek (abfd
, info
->dyninfo
.ld_hash
, SEEK_SET
) != 0
366 || bfd_read ((PTR
) table
, 1, table_size
, abfd
) != table_size
)
368 for (i
= 0; i
< info
->dynsym_count
; i
++)
373 name
= ((unsigned char *) info
->dynstr
374 + GET_WORD (abfd
, info
->dynsym
[i
].e_strx
));
376 while (*name
!= '\0')
377 hash
= (hash
<< 1) + *name
++;
379 hash
%= info
->dyninfo
.ld_buckets
;
380 while (GET_WORD (abfd
, table
+ hash
* HASH_ENTRY_SIZE
) != i
)
382 hash
= GET_WORD (abfd
,
383 table
+ hash
* HASH_ENTRY_SIZE
+ BYTES_IN_WORD
);
384 if (hash
== 0 || hash
>= table_size
/ HASH_ENTRY_SIZE
)
390 #endif /* CHECK_DYNAMIC_HASH */
392 /* Get the asymbol structures corresponding to the dynamic nlist
394 if (info
->canonical_dynsym
== (aout_symbol_type
*) NULL
)
396 info
->canonical_dynsym
= ((aout_symbol_type
*)
399 * sizeof (aout_symbol_type
))));
400 if (info
->canonical_dynsym
== NULL
&& info
->dynsym_count
!= 0)
402 bfd_set_error (bfd_error_no_memory
);
406 if (! aout_32_translate_symbol_table (abfd
, info
->canonical_dynsym
,
407 info
->dynsym
, info
->dynsym_count
,
409 info
->dyninfo
.ld_symb_size
,
412 if (info
->canonical_dynsym
!= NULL
)
414 bfd_release (abfd
, info
->canonical_dynsym
);
415 info
->canonical_dynsym
= NULL
;
421 /* Return pointers to the dynamic asymbol structures. */
422 for (i
= 0; i
< info
->dynsym_count
; i
++)
423 *storage
++ = (asymbol
*) (info
->canonical_dynsym
+ i
);
426 return info
->dynsym_count
;
429 /* Return the amount of memory required for the dynamic relocs. */
432 sunos_get_dynamic_reloc_upper_bound (abfd
)
435 struct sunos_dynamic_info
*info
;
437 if (! sunos_read_dynamic_info (abfd
))
440 info
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
443 bfd_set_error (bfd_error_no_symbols
);
447 return (info
->dynrel_count
+ 1) * sizeof (arelent
*);
450 /* Read in the dynamic relocs. */
453 sunos_canonicalize_dynamic_reloc (abfd
, storage
, syms
)
458 struct sunos_dynamic_info
*info
;
461 /* Get the general dynamic information. */
462 if (obj_aout_dynamic_info (abfd
) == (PTR
) NULL
)
464 if (! sunos_read_dynamic_info (abfd
))
468 info
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
471 bfd_set_error (bfd_error_no_symbols
);
475 /* Get the dynamic reloc information. */
476 if (info
->dynrel
== NULL
)
478 info
->dynrel
= (PTR
) bfd_alloc (abfd
,
480 * obj_reloc_entry_size (abfd
)));
481 if (info
->dynrel
== NULL
&& info
->dynrel_count
!= 0)
483 bfd_set_error (bfd_error_no_memory
);
486 if (bfd_seek (abfd
, info
->dyninfo
.ld_rel
, SEEK_SET
) != 0
487 || (bfd_read ((PTR
) info
->dynrel
, info
->dynrel_count
,
488 obj_reloc_entry_size (abfd
), abfd
)
489 != info
->dynrel_count
* obj_reloc_entry_size (abfd
)))
491 if (info
->dynrel
!= NULL
)
493 bfd_release (abfd
, info
->dynrel
);
500 /* Get the arelent structures corresponding to the dynamic reloc
502 if (info
->canonical_dynrel
== (arelent
*) NULL
)
506 info
->canonical_dynrel
= ((arelent
*)
509 * sizeof (arelent
))));
510 if (info
->canonical_dynrel
== NULL
&& info
->dynrel_count
!= 0)
512 bfd_set_error (bfd_error_no_memory
);
516 to
= info
->canonical_dynrel
;
518 if (obj_reloc_entry_size (abfd
) == RELOC_EXT_SIZE
)
520 register struct reloc_ext_external
*p
;
521 struct reloc_ext_external
*pend
;
523 p
= (struct reloc_ext_external
*) info
->dynrel
;
524 pend
= p
+ info
->dynrel_count
;
525 for (; p
< pend
; p
++, to
++)
526 NAME(aout
,swap_ext_reloc_in
) (abfd
, p
, to
, syms
,
531 register struct reloc_std_external
*p
;
532 struct reloc_std_external
*pend
;
534 p
= (struct reloc_std_external
*) info
->dynrel
;
535 pend
= p
+ info
->dynrel_count
;
536 for (; p
< pend
; p
++, to
++)
537 NAME(aout
,swap_std_reloc_in
) (abfd
, p
, to
, syms
,
542 /* Return pointers to the dynamic arelent structures. */
543 for (i
= 0; i
< info
->dynrel_count
; i
++)
544 *storage
++ = info
->canonical_dynrel
+ i
;
547 return info
->dynrel_count
;
550 /* Code to handle linking of SunOS shared libraries. */
552 /* A SPARC procedure linkage table entry is 12 bytes. The first entry
553 in the table is a jump which is filled in by the runtime linker.
554 The remaining entries are branches back to the first entry,
555 followed by an index into the relocation table encoded to look like
558 #define SPARC_PLT_ENTRY_SIZE (12)
560 static const bfd_byte sparc_plt_first_entry
[SPARC_PLT_ENTRY_SIZE
] =
562 /* sethi %hi(0),%g1; address filled in by runtime linker. */
564 /* jmp %g1; offset filled in by runtime linker. */
570 /* save %sp, -96, %sp */
571 #define SPARC_PLT_ENTRY_WORD0 0x9de3bfa0
572 /* call; address filled in later. */
573 #define SPARC_PLT_ENTRY_WORD1 0x40000000
574 /* sethi; reloc index filled in later. */
575 #define SPARC_PLT_ENTRY_WORD2 0x01000000
577 /* This sequence is used when for the jump table entry to a defined
578 symbol in a complete executable. It is used when linking PIC
579 compiled code which is not being put into a shared library. */
580 /* sethi <address to be filled in later>, %g1 */
581 #define SPARC_PLT_PIC_WORD0 0x03000000
582 /* jmp %g1 + <address to be filled in later> */
583 #define SPARC_PLT_PIC_WORD1 0x81c06000
585 #define SPARC_PLT_PIC_WORD2 0x01000000
587 /* An m68k procedure linkage table entry is 8 bytes. The first entry
588 in the table is a jump which is filled in the by the runtime
589 linker. The remaining entries are branches back to the first
590 entry, followed by a two byte index into the relocation table. */
592 #define M68K_PLT_ENTRY_SIZE (8)
594 static const bfd_byte m68k_plt_first_entry
[M68K_PLT_ENTRY_SIZE
] =
598 /* Filled in by runtime linker with a magic address. */
605 #define M68K_PLT_ENTRY_WORD0 (0x61ff)
606 /* Remaining words filled in later. */
608 /* An entry in the SunOS linker hash table. */
610 struct sunos_link_hash_entry
612 struct aout_link_hash_entry root
;
614 /* If this is a dynamic symbol, this is its index into the dynamic
615 symbol table. This is initialized to -1. As the linker looks at
616 the input files, it changes this to -2 if it will be added to the
617 dynamic symbol table. After all the input files have been seen,
618 the linker will know whether to build a dynamic symbol table; if
619 it does build one, this becomes the index into the table. */
622 /* If this is a dynamic symbol, this is the index of the name in the
623 dynamic symbol string table. */
626 /* The offset into the global offset table used for this symbol. If
627 the symbol does not require a GOT entry, this is 0. */
630 /* The offset into the procedure linkage table used for this symbol.
631 If the symbol does not require a PLT entry, this is 0. */
634 /* Some linker flags. */
636 /* Symbol is referenced by a regular object. */
637 #define SUNOS_REF_REGULAR 01
638 /* Symbol is defined by a regular object. */
639 #define SUNOS_DEF_REGULAR 02
640 /* Symbol is referenced by a dynamic object. */
641 #define SUNOS_REF_DYNAMIC 010
642 /* Symbol is defined by a dynamic object. */
643 #define SUNOS_DEF_DYNAMIC 020
646 /* The SunOS linker hash table. */
648 struct sunos_link_hash_table
650 struct aout_link_hash_table root
;
652 /* The object which holds the dynamic sections. */
655 /* Whether we have created the dynamic sections. */
656 boolean dynamic_sections_created
;
658 /* Whether we need the dynamic sections. */
659 boolean dynamic_sections_needed
;
661 /* The number of dynamic symbols. */
664 /* The number of buckets in the hash table. */
667 /* The list of dynamic objects needed by dynamic objects included in
669 struct bfd_link_needed_list
*needed
;
672 /* Routine to create an entry in an SunOS link hash table. */
674 static struct bfd_hash_entry
*
675 sunos_link_hash_newfunc (entry
, table
, string
)
676 struct bfd_hash_entry
*entry
;
677 struct bfd_hash_table
*table
;
680 struct sunos_link_hash_entry
*ret
= (struct sunos_link_hash_entry
*) entry
;
682 /* Allocate the structure if it has not already been allocated by a
684 if (ret
== (struct sunos_link_hash_entry
*) NULL
)
685 ret
= ((struct sunos_link_hash_entry
*)
686 bfd_hash_allocate (table
, sizeof (struct sunos_link_hash_entry
)));
687 if (ret
== (struct sunos_link_hash_entry
*) NULL
)
689 bfd_set_error (bfd_error_no_memory
);
690 return (struct bfd_hash_entry
*) ret
;
693 /* Call the allocation method of the superclass. */
694 ret
= ((struct sunos_link_hash_entry
*)
695 NAME(aout
,link_hash_newfunc
) ((struct bfd_hash_entry
*) ret
,
699 /* Set local fields. */
701 ret
->dynstr_index
= -1;
707 return (struct bfd_hash_entry
*) ret
;
710 /* Create a SunOS link hash table. */
712 static struct bfd_link_hash_table
*
713 sunos_link_hash_table_create (abfd
)
716 struct sunos_link_hash_table
*ret
;
718 ret
= ((struct sunos_link_hash_table
*)
719 bfd_alloc (abfd
, sizeof (struct sunos_link_hash_table
)));
720 if (ret
== (struct sunos_link_hash_table
*) NULL
)
722 bfd_set_error (bfd_error_no_memory
);
723 return (struct bfd_link_hash_table
*) NULL
;
725 if (! NAME(aout
,link_hash_table_init
) (&ret
->root
, abfd
,
726 sunos_link_hash_newfunc
))
728 bfd_release (abfd
, ret
);
729 return (struct bfd_link_hash_table
*) NULL
;
733 ret
->dynamic_sections_created
= false;
734 ret
->dynamic_sections_needed
= false;
735 ret
->dynsymcount
= 0;
736 ret
->bucketcount
= 0;
739 return &ret
->root
.root
;
742 /* Look up an entry in an SunOS link hash table. */
744 #define sunos_link_hash_lookup(table, string, create, copy, follow) \
745 ((struct sunos_link_hash_entry *) \
746 aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\
749 /* Traverse a SunOS link hash table. */
751 #define sunos_link_hash_traverse(table, func, info) \
752 (aout_link_hash_traverse \
754 (boolean (*) PARAMS ((struct aout_link_hash_entry *, PTR))) (func), \
757 /* Get the SunOS link hash table from the info structure. This is
760 #define sunos_hash_table(p) ((struct sunos_link_hash_table *) ((p)->hash))
762 static boolean sunos_scan_dynamic_symbol
763 PARAMS ((struct sunos_link_hash_entry
*, PTR
));
765 /* Create the dynamic sections needed if we are linking against a
766 dynamic object, or if we are linking PIC compiled code. ABFD is a
767 bfd we can attach the dynamic sections to. The linker script will
768 look for these special sections names and put them in the right
769 place in the output file. See include/aout/sun4.h for more details
770 of the dynamic linking information. */
773 sunos_create_dynamic_sections (abfd
, info
, needed
)
775 struct bfd_link_info
*info
;
780 if (! sunos_hash_table (info
)->dynamic_sections_created
)
784 sunos_hash_table (info
)->dynobj
= abfd
;
786 flags
= SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
;
788 /* The .dynamic section holds the basic dynamic information: the
789 sun4_dynamic structure, the dynamic debugger information, and
790 the sun4_dynamic_link structure. */
791 s
= bfd_make_section (abfd
, ".dynamic");
793 || ! bfd_set_section_flags (abfd
, s
, flags
)
794 || ! bfd_set_section_alignment (abfd
, s
, 2))
797 /* The .got section holds the global offset table. The address
798 is put in the ld_got field. */
799 s
= bfd_make_section (abfd
, ".got");
801 || ! bfd_set_section_flags (abfd
, s
, flags
)
802 || ! bfd_set_section_alignment (abfd
, s
, 2))
805 /* The .plt section holds the procedure linkage table. The
806 address is put in the ld_plt field. */
807 s
= bfd_make_section (abfd
, ".plt");
809 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_CODE
)
810 || ! bfd_set_section_alignment (abfd
, s
, 2))
813 /* The .dynrel section holds the dynamic relocs. The address is
814 put in the ld_rel field. */
815 s
= bfd_make_section (abfd
, ".dynrel");
817 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
818 || ! bfd_set_section_alignment (abfd
, s
, 2))
821 /* The .hash section holds the dynamic hash table. The address
822 is put in the ld_hash field. */
823 s
= bfd_make_section (abfd
, ".hash");
825 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
826 || ! bfd_set_section_alignment (abfd
, s
, 2))
829 /* The .dynsym section holds the dynamic symbols. The address
830 is put in the ld_stab field. */
831 s
= bfd_make_section (abfd
, ".dynsym");
833 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
834 || ! bfd_set_section_alignment (abfd
, s
, 2))
837 /* The .dynstr section holds the dynamic symbol string table.
838 The address is put in the ld_symbols field. */
839 s
= bfd_make_section (abfd
, ".dynstr");
841 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
842 || ! bfd_set_section_alignment (abfd
, s
, 2))
845 sunos_hash_table (info
)->dynamic_sections_created
= true;
848 if (needed
&& ! sunos_hash_table (info
)->dynamic_sections_needed
)
852 dynobj
= sunos_hash_table (info
)->dynobj
;
854 s
= bfd_get_section_by_name (dynobj
, ".got");
855 s
->_raw_size
= BYTES_IN_WORD
;
857 sunos_hash_table (info
)->dynamic_sections_needed
= true;
863 /* Add dynamic symbols during a link. This is called by the a.out
864 backend linker when it encounters an object with the DYNAMIC flag
868 sunos_add_dynamic_symbols (abfd
, info
, symsp
, sym_countp
, stringsp
)
870 struct bfd_link_info
*info
;
871 struct external_nlist
**symsp
;
872 bfd_size_type
*sym_countp
;
877 struct sunos_dynamic_info
*dinfo
;
880 /* We do not want to include the sections in a dynamic object in the
881 output file. We hack by simply clobbering the list of sections
882 in the BFD. This could be handled more cleanly by, say, a new
883 section flag; the existing SEC_NEVER_LOAD flag is not the one we
884 want, because that one still implies that the section takes up
885 space in the output file. */
886 abfd
->sections
= NULL
;
888 /* The native linker seems to just ignore dynamic objects when -r is
890 if (info
->relocateable
)
893 /* There's no hope of using a dynamic object which does not exactly
894 match the format of the output file. */
895 if (info
->hash
->creator
!= abfd
->xvec
)
897 bfd_set_error (bfd_error_invalid_operation
);
901 /* Make sure we have all the required information. */
902 if (! sunos_create_dynamic_sections (abfd
, info
, true))
905 /* Make sure we have a .need and a .rules sections. These are only
906 needed if there really is a dynamic object in the link, so they
907 are not added by sunos_create_dynamic_sections. */
908 dynobj
= sunos_hash_table (info
)->dynobj
;
909 if (bfd_get_section_by_name (dynobj
, ".need") == NULL
)
911 /* The .need section holds the list of names of shared objets
912 which must be included at runtime. The address of this
913 section is put in the ld_need field. */
914 s
= bfd_make_section (dynobj
, ".need");
916 || ! bfd_set_section_flags (dynobj
, s
,
922 || ! bfd_set_section_alignment (dynobj
, s
, 2))
926 if (bfd_get_section_by_name (dynobj
, ".rules") == NULL
)
928 /* The .rules section holds the path to search for shared
929 objects. The address of this section is put in the ld_rules
931 s
= bfd_make_section (dynobj
, ".rules");
933 || ! bfd_set_section_flags (dynobj
, s
,
939 || ! bfd_set_section_alignment (dynobj
, s
, 2))
943 /* Pick up the dynamic symbols and return them to the caller. */
944 if (! sunos_slurp_dynamic_symtab (abfd
))
947 dinfo
= (struct sunos_dynamic_info
*) obj_aout_dynamic_info (abfd
);
948 *symsp
= dinfo
->dynsym
;
949 *sym_countp
= dinfo
->dynsym_count
;
950 *stringsp
= dinfo
->dynstr
;
952 /* Record information about any other objects needed by this one. */
953 need
= dinfo
->dyninfo
.ld_need
;
957 unsigned long name
, flags
;
958 unsigned short major_vno
, minor_vno
;
959 struct bfd_link_needed_list
*needed
, **pp
;
962 if (bfd_seek (abfd
, need
, SEEK_SET
) != 0
963 || bfd_read (buf
, 1, 16, abfd
) != 16)
966 /* For the format of an ld_need entry, see aout/sun4.h. We
967 should probably define structs for this manipulation. */
969 name
= bfd_get_32 (abfd
, buf
);
970 flags
= bfd_get_32 (abfd
, buf
+ 4);
971 major_vno
= bfd_get_16 (abfd
, buf
+ 8);
972 minor_vno
= bfd_get_16 (abfd
, buf
+ 10);
973 need
= bfd_get_32 (abfd
, buf
+ 12);
975 needed
= (struct bfd_link_needed_list
*) bfd_alloc (abfd
, sizeof (struct bfd_link_needed_list
));
978 bfd_set_error (bfd_error_no_memory
);
983 /* We return the name as [-l]name[.maj][.min]. */
985 if ((flags
& 0x80000000) != 0)
986 bfd_alloc_grow (abfd
, "-l", 2);
987 if (bfd_seek (abfd
, name
, SEEK_SET
) != 0)
991 if (bfd_read (&b
, 1, 1, abfd
) != 1)
993 bfd_alloc_grow (abfd
, &b
, 1);
1000 sprintf (verbuf
, ".%d", major_vno
);
1001 bfd_alloc_grow (abfd
, verbuf
, strlen (verbuf
));
1004 sprintf (verbuf
, ".%d", minor_vno
);
1005 bfd_alloc_grow (abfd
, verbuf
, strlen (verbuf
));
1008 needed
->name
= bfd_alloc_finish (abfd
);
1009 if (needed
->name
== NULL
)
1011 bfd_set_error (bfd_error_no_memory
);
1015 needed
->next
= NULL
;
1017 for (pp
= &sunos_hash_table (info
)->needed
;
1027 /* Function to add a single symbol to the linker hash table. This is
1028 a wrapper around _bfd_generic_link_add_one_symbol which handles the
1029 tweaking needed for dynamic linking support. */
1032 sunos_add_one_symbol (info
, abfd
, name
, flags
, section
, value
, string
,
1033 copy
, collect
, hashp
)
1034 struct bfd_link_info
*info
;
1043 struct bfd_link_hash_entry
**hashp
;
1045 struct sunos_link_hash_entry
*h
;
1048 if (! sunos_hash_table (info
)->dynamic_sections_created
)
1050 /* We must create the dynamic sections while reading the input
1051 files, even though at this point we don't know if any of the
1052 sections will be needed. This will ensure that the dynamic
1053 sections are mapped to the right output section. It does no
1054 harm to create these sections if they are not needed. */
1055 if (! sunos_create_dynamic_sections (abfd
, info
, false))
1059 h
= sunos_link_hash_lookup (sunos_hash_table (info
), name
, true, copy
,
1065 *hashp
= (struct bfd_link_hash_entry
*) h
;
1067 /* Treat a common symbol in a dynamic object as defined in the .bss
1068 section of the dynamic object. We don't want to allocate space
1069 for it in our process image. */
1070 if ((abfd
->flags
& DYNAMIC
) != 0
1071 && bfd_is_com_section (section
))
1072 section
= obj_bsssec (abfd
);
1074 if (! bfd_is_und_section (section
)
1075 && h
->root
.root
.type
!= bfd_link_hash_new
1076 && h
->root
.root
.type
!= bfd_link_hash_undefined
1077 && h
->root
.root
.type
!= bfd_link_hash_defweak
)
1079 /* We are defining the symbol, and it is already defined. This
1080 is a potential multiple definition error. */
1081 if ((abfd
->flags
& DYNAMIC
) != 0)
1083 /* The definition we are adding is from a dynamic object.
1084 We do not want this new definition to override the
1085 existing definition, so we pretend it is just a
1087 section
= bfd_und_section_ptr
;
1089 else if (h
->root
.root
.type
== bfd_link_hash_defined
1090 && h
->root
.root
.u
.def
.section
->owner
!= NULL
1091 && (h
->root
.root
.u
.def
.section
->owner
->flags
& DYNAMIC
) != 0)
1093 /* The existing definition is from a dynamic object. We
1094 want to override it with the definition we just found.
1095 Clobber the existing definition. */
1096 h
->root
.root
.type
= bfd_link_hash_new
;
1098 else if (h
->root
.root
.type
== bfd_link_hash_common
1099 && (h
->root
.root
.u
.c
.p
->section
->owner
->flags
& DYNAMIC
) != 0)
1101 /* The existing definition is from a dynamic object. We
1102 want to override it with the definition we just found.
1103 Clobber the existing definition. We can't set it to new,
1104 because it is on the undefined list. */
1105 h
->root
.root
.type
= bfd_link_hash_undefined
;
1106 h
->root
.root
.u
.undef
.abfd
= h
->root
.root
.u
.c
.p
->section
->owner
;
1110 /* Do the usual procedure for adding a symbol. */
1111 if (! _bfd_generic_link_add_one_symbol (info
, abfd
, name
, flags
, section
,
1112 value
, string
, copy
, collect
,
1116 if (abfd
->xvec
== info
->hash
->creator
)
1118 /* Set a flag in the hash table entry indicating the type of
1119 reference or definition we just found. Keep a count of the
1120 number of dynamic symbols we find. A dynamic symbol is one
1121 which is referenced or defined by both a regular object and a
1123 if ((abfd
->flags
& DYNAMIC
) == 0)
1125 if (bfd_is_und_section (section
))
1126 new_flag
= SUNOS_REF_REGULAR
;
1128 new_flag
= SUNOS_DEF_REGULAR
;
1132 if (bfd_is_und_section (section
))
1133 new_flag
= SUNOS_REF_DYNAMIC
;
1135 new_flag
= SUNOS_DEF_DYNAMIC
;
1137 h
->flags
|= new_flag
;
1139 if (h
->dynindx
== -1
1140 && (h
->flags
& (SUNOS_DEF_REGULAR
| SUNOS_REF_REGULAR
)) != 0)
1142 ++sunos_hash_table (info
)->dynsymcount
;
1150 /* Return the list of objects needed by BFD. */
1153 struct bfd_link_needed_list
*
1154 bfd_sunos_get_needed_list (abfd
, info
)
1156 struct bfd_link_info
*info
;
1158 return sunos_hash_table (info
)->needed
;
1161 /* Record an assignment made to a symbol by a linker script. We need
1162 this in case some dynamic object refers to this symbol. */
1165 bfd_sunos_record_link_assignment (output_bfd
, info
, name
)
1167 struct bfd_link_info
*info
;
1170 struct sunos_link_hash_entry
*h
;
1172 if (output_bfd
->xvec
!= &MY(vec
))
1175 /* This is called after we have examined all the input objects. If
1176 the symbol does not exist, it merely means that no object refers
1177 to it, and we can just ignore it at this point. */
1178 h
= sunos_link_hash_lookup (sunos_hash_table (info
), name
,
1179 false, false, false);
1183 /* In a shared library, the __DYNAMIC symbol does not appear in the
1184 dynamic symbol table. */
1185 if (! info
->shared
|| strcmp (name
, "__DYNAMIC") != 0)
1187 h
->flags
|= SUNOS_DEF_REGULAR
;
1189 if (h
->dynindx
== -1)
1191 ++sunos_hash_table (info
)->dynsymcount
;
1199 /* Set up the sizes and contents of the dynamic sections created in
1200 sunos_add_dynamic_symbols. This is called by the SunOS linker
1201 emulation before_allocation routine. We must set the sizes of the
1202 sections before the linker sets the addresses of the various
1203 sections. This unfortunately requires reading all the relocs so
1204 that we can work out which ones need to become dynamic relocs. If
1205 info->keep_memory is true, we keep the relocs in memory; otherwise,
1206 we discard them, and will read them again later. */
1209 bfd_sunos_size_dynamic_sections (output_bfd
, info
, sdynptr
, sneedptr
,
1212 struct bfd_link_info
*info
;
1214 asection
**sneedptr
;
1215 asection
**srulesptr
;
1219 struct sunos_link_hash_entry
*h
;
1230 if (output_bfd
->xvec
!= &MY(vec
))
1233 /* Look through all the input BFD's and read their relocs. It would
1234 be better if we didn't have to do this, but there is no other way
1235 to determine the number of dynamic relocs we need, and, more
1236 importantly, there is no other way to know which symbols should
1237 get an entry in the procedure linkage table. */
1238 for (sub
= info
->input_bfds
; sub
!= NULL
; sub
= sub
->link_next
)
1240 if ((sub
->flags
& DYNAMIC
) == 0
1241 && sub
->xvec
== output_bfd
->xvec
)
1243 if (! sunos_scan_relocs (info
, sub
, obj_textsec (sub
),
1244 exec_hdr (sub
)->a_trsize
)
1245 || ! sunos_scan_relocs (info
, sub
, obj_datasec (sub
),
1246 exec_hdr (sub
)->a_drsize
))
1251 dynobj
= sunos_hash_table (info
)->dynobj
;
1252 dynsymcount
= sunos_hash_table (info
)->dynsymcount
;
1254 /* If there were no dynamic objects in the link, and we don't need
1255 to build a global offset table, there is nothing to do here. */
1256 if (! sunos_hash_table (info
)->dynamic_sections_needed
)
1259 /* If __GLOBAL_OFFSET_TABLE_ was mentioned, define it. */
1260 h
= sunos_link_hash_lookup (sunos_hash_table (info
),
1261 "__GLOBAL_OFFSET_TABLE_", false, false, false);
1262 if (h
!= NULL
&& (h
->flags
& SUNOS_REF_REGULAR
) != 0)
1264 h
->flags
|= SUNOS_DEF_REGULAR
;
1265 if (h
->dynindx
== -1)
1267 ++sunos_hash_table (info
)->dynsymcount
;
1270 h
->root
.root
.type
= bfd_link_hash_defined
;
1271 h
->root
.root
.u
.def
.section
= bfd_get_section_by_name (dynobj
, ".got");
1272 h
->root
.root
.u
.def
.value
= 0;
1275 /* The .dynamic section is always the same size. */
1276 s
= bfd_get_section_by_name (dynobj
, ".dynamic");
1277 BFD_ASSERT (s
!= NULL
);
1278 s
->_raw_size
= (sizeof (struct external_sun4_dynamic
)
1279 + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE
1280 + sizeof (struct external_sun4_dynamic_link
));
1282 /* Set the size of the .dynsym and .hash sections. We counted the
1283 number of dynamic symbols as we read the input files. We will
1284 build the dynamic symbol table (.dynsym) and the hash table
1285 (.hash) when we build the final symbol table, because until then
1286 we do not know the correct value to give the symbols. We build
1287 the dynamic symbol string table (.dynstr) in a traversal of the
1288 symbol table using sunos_scan_dynamic_symbol. */
1289 s
= bfd_get_section_by_name (dynobj
, ".dynsym");
1290 BFD_ASSERT (s
!= NULL
);
1291 s
->_raw_size
= dynsymcount
* sizeof (struct external_nlist
);
1292 s
->contents
= (bfd_byte
*) bfd_alloc (output_bfd
, s
->_raw_size
);
1293 if (s
->contents
== NULL
&& s
->_raw_size
!= 0)
1295 bfd_set_error (bfd_error_no_memory
);
1299 /* The number of buckets is just the number of symbols divided by
1300 four. To compute the final size of the hash table, we must
1301 actually compute the hash table. Normally we need exactly as
1302 many entries in the hash table as there are dynamic symbols, but
1303 if some of the buckets are not used we will need additional
1304 entries. In the worst case, every symbol will hash to the same
1305 bucket, and we will need BUCKETCOUNT - 1 extra entries. */
1306 if (dynsymcount
>= 4)
1307 bucketcount
= dynsymcount
/ 4;
1308 else if (dynsymcount
> 0)
1309 bucketcount
= dynsymcount
;
1312 s
= bfd_get_section_by_name (dynobj
, ".hash");
1313 BFD_ASSERT (s
!= NULL
);
1314 hashalloc
= (dynsymcount
+ bucketcount
- 1) * HASH_ENTRY_SIZE
;
1315 s
->contents
= (bfd_byte
*) bfd_alloc (dynobj
, hashalloc
);
1316 if (s
->contents
== NULL
&& dynsymcount
> 0)
1318 bfd_set_error (bfd_error_no_memory
);
1321 memset (s
->contents
, 0, hashalloc
);
1322 for (i
= 0; i
< bucketcount
; i
++)
1323 PUT_WORD (output_bfd
, (bfd_vma
) -1, s
->contents
+ i
* HASH_ENTRY_SIZE
);
1324 s
->_raw_size
= bucketcount
* HASH_ENTRY_SIZE
;
1326 sunos_hash_table (info
)->bucketcount
= bucketcount
;
1328 /* Scan all the symbols, place them in the dynamic symbol table, and
1329 build the dynamic hash table. We reuse dynsymcount as a counter
1330 for the number of symbols we have added so far. */
1331 sunos_hash_table (info
)->dynsymcount
= 0;
1332 sunos_link_hash_traverse (sunos_hash_table (info
),
1333 sunos_scan_dynamic_symbol
,
1335 BFD_ASSERT (sunos_hash_table (info
)->dynsymcount
== dynsymcount
);
1337 /* The SunOS native linker seems to align the total size of the
1338 symbol strings to a multiple of 8. I don't know if this is
1339 important, but it can't hurt much. */
1340 s
= bfd_get_section_by_name (dynobj
, ".dynstr");
1341 BFD_ASSERT (s
!= NULL
);
1342 if ((s
->_raw_size
& 7) != 0)
1347 add
= 8 - (s
->_raw_size
& 7);
1348 contents
= (bfd_byte
*) realloc (s
->contents
,
1349 (size_t) (s
->_raw_size
+ add
));
1350 if (contents
== NULL
)
1352 bfd_set_error (bfd_error_no_memory
);
1355 memset (contents
+ s
->_raw_size
, 0, (size_t) add
);
1356 s
->contents
= contents
;
1357 s
->_raw_size
+= add
;
1360 /* Now that we have worked out the sizes of the procedure linkage
1361 table and the dynamic relocs, allocate storage for them. */
1362 s
= bfd_get_section_by_name (dynobj
, ".plt");
1363 BFD_ASSERT (s
!= NULL
);
1364 if (s
->_raw_size
!= 0)
1366 s
->contents
= (bfd_byte
*) bfd_alloc (dynobj
, s
->_raw_size
);
1367 if (s
->contents
== NULL
)
1369 bfd_set_error (bfd_error_no_memory
);
1373 /* Fill in the first entry in the table. */
1374 switch (bfd_get_arch (dynobj
))
1376 case bfd_arch_sparc
:
1377 memcpy (s
->contents
, sparc_plt_first_entry
, SPARC_PLT_ENTRY_SIZE
);
1381 memcpy (s
->contents
, m68k_plt_first_entry
, M68K_PLT_ENTRY_SIZE
);
1389 s
= bfd_get_section_by_name (dynobj
, ".dynrel");
1390 if (s
->_raw_size
!= 0)
1392 s
->contents
= (bfd_byte
*) bfd_alloc (dynobj
, s
->_raw_size
);
1393 if (s
->contents
== NULL
)
1395 bfd_set_error (bfd_error_no_memory
);
1399 /* We use the reloc_count field to keep track of how many of the
1400 relocs we have output so far. */
1403 /* Make space for the global offset table. */
1404 s
= bfd_get_section_by_name (dynobj
, ".got");
1405 s
->contents
= (bfd_byte
*) bfd_alloc (dynobj
, s
->_raw_size
);
1406 if (s
->contents
== NULL
)
1408 bfd_set_error (bfd_error_no_memory
);
1412 *sdynptr
= bfd_get_section_by_name (dynobj
, ".dynamic");
1413 *sneedptr
= bfd_get_section_by_name (dynobj
, ".need");
1414 *srulesptr
= bfd_get_section_by_name (dynobj
, ".rules");
1419 /* Scan the relocs for an input section. */
1422 sunos_scan_relocs (info
, abfd
, sec
, rel_size
)
1423 struct bfd_link_info
*info
;
1426 bfd_size_type rel_size
;
1429 PTR free_relocs
= NULL
;
1434 if (! info
->keep_memory
)
1435 relocs
= free_relocs
= malloc ((size_t) rel_size
);
1438 struct aout_section_data_struct
*n
;
1440 n
= ((struct aout_section_data_struct
*)
1441 bfd_alloc (abfd
, sizeof (struct aout_section_data_struct
)));
1446 set_aout_section_data (sec
, n
);
1447 relocs
= malloc ((size_t) rel_size
);
1448 aout_section_data (sec
)->relocs
= relocs
;
1453 bfd_set_error (bfd_error_no_memory
);
1457 if (bfd_seek (abfd
, sec
->rel_filepos
, SEEK_SET
) != 0
1458 || bfd_read (relocs
, 1, rel_size
, abfd
) != rel_size
)
1461 if (obj_reloc_entry_size (abfd
) == RELOC_STD_SIZE
)
1463 if (! sunos_scan_std_relocs (info
, abfd
, sec
,
1464 (struct reloc_std_external
*) relocs
,
1470 if (! sunos_scan_ext_relocs (info
, abfd
, sec
,
1471 (struct reloc_ext_external
*) relocs
,
1476 if (free_relocs
!= NULL
)
1482 if (free_relocs
!= NULL
)
1487 /* Scan the relocs for an input section using standard relocs. We
1488 need to figure out what to do for each reloc against a dynamic
1489 symbol. If the symbol is in the .text section, an entry is made in
1490 the procedure linkage table. Note that this will do the wrong
1491 thing if the symbol is actually data; I don't think the Sun 3
1492 native linker handles this case correctly either. If the symbol is
1493 not in the .text section, we must preserve the reloc as a dynamic
1494 reloc. FIXME: We should also handle the PIC relocs here by
1495 building global offset table entries. */
1498 sunos_scan_std_relocs (info
, abfd
, sec
, relocs
, rel_size
)
1499 struct bfd_link_info
*info
;
1502 const struct reloc_std_external
*relocs
;
1503 bfd_size_type rel_size
;
1506 asection
*splt
= NULL
;
1507 asection
*srel
= NULL
;
1508 struct sunos_link_hash_entry
**sym_hashes
;
1509 const struct reloc_std_external
*rel
, *relend
;
1511 /* We only know how to handle m68k plt entries. */
1512 if (bfd_get_arch (abfd
) != bfd_arch_m68k
)
1514 bfd_set_error (bfd_error_invalid_target
);
1520 sym_hashes
= (struct sunos_link_hash_entry
**) obj_aout_sym_hashes (abfd
);
1522 relend
= relocs
+ rel_size
/ RELOC_STD_SIZE
;
1523 for (rel
= relocs
; rel
< relend
; rel
++)
1526 struct sunos_link_hash_entry
*h
;
1528 /* We only want relocs against external symbols. */
1529 if (abfd
->xvec
->header_byteorder_big_p
)
1531 if ((rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_BIG
) == 0)
1536 if ((rel
->r_type
[0] & RELOC_STD_BITS_EXTERN_LITTLE
) == 0)
1540 /* Get the symbol index. */
1541 if (abfd
->xvec
->header_byteorder_big_p
)
1542 r_index
= ((rel
->r_index
[0] << 16)
1543 | (rel
->r_index
[1] << 8)
1546 r_index
= ((rel
->r_index
[2] << 16)
1547 | (rel
->r_index
[1] << 8)
1550 /* Get the hash table entry. */
1551 h
= sym_hashes
[r_index
];
1554 /* This should not normally happen, but it will in any case
1555 be caught in the relocation phase. */
1559 /* At this point common symbols have already been allocated, so
1560 we don't have to worry about them. We need to consider that
1561 we may have already seen this symbol and marked it undefined;
1562 if the symbol is really undefined, then SUNOS_DEF_DYNAMIC
1564 if (h
->root
.root
.type
!= bfd_link_hash_defined
1565 && h
->root
.root
.type
!= bfd_link_hash_defweak
1566 && h
->root
.root
.type
!= bfd_link_hash_undefined
)
1569 if ((h
->flags
& SUNOS_DEF_DYNAMIC
) == 0
1570 || (h
->flags
& SUNOS_DEF_REGULAR
) != 0)
1575 if (! sunos_create_dynamic_sections (abfd
, info
, true))
1577 dynobj
= sunos_hash_table (info
)->dynobj
;
1578 splt
= bfd_get_section_by_name (dynobj
, ".plt");
1579 srel
= bfd_get_section_by_name (dynobj
, ".dynrel");
1580 BFD_ASSERT (splt
!= NULL
&& srel
!= NULL
);
1583 BFD_ASSERT ((h
->flags
& SUNOS_REF_REGULAR
) != 0);
1584 BFD_ASSERT (h
->plt_offset
!= 0
1585 || ((h
->root
.root
.type
== bfd_link_hash_defined
1586 || h
->root
.root
.type
== bfd_link_hash_defweak
)
1587 ? (h
->root
.root
.u
.def
.section
->owner
->flags
1589 : (h
->root
.root
.u
.undef
.abfd
->flags
& DYNAMIC
) != 0));
1591 /* This reloc is against a symbol defined only by a dynamic
1594 if (h
->root
.root
.type
== bfd_link_hash_undefined
)
1596 /* Presumably this symbol was marked as being undefined by
1597 an earlier reloc. */
1598 srel
->_raw_size
+= RELOC_STD_SIZE
;
1600 else if ((h
->root
.root
.u
.def
.section
->flags
& SEC_CODE
) == 0)
1604 /* This reloc is not in the .text section. It must be
1605 copied into the dynamic relocs. We mark the symbol as
1607 srel
->_raw_size
+= RELOC_STD_SIZE
;
1608 sub
= h
->root
.root
.u
.def
.section
->owner
;
1609 h
->root
.root
.type
= bfd_link_hash_undefined
;
1610 h
->root
.root
.u
.undef
.abfd
= sub
;
1614 /* This symbol is in the .text section. We must give it an
1615 entry in the procedure linkage table, if we have not
1616 already done so. We change the definition of the symbol
1617 to the .plt section; this will cause relocs against it to
1618 be handled correctly. */
1619 if (h
->plt_offset
== 0)
1621 if (splt
->_raw_size
== 0)
1622 splt
->_raw_size
= M68K_PLT_ENTRY_SIZE
;
1623 h
->plt_offset
= splt
->_raw_size
;
1625 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0)
1627 h
->root
.root
.u
.def
.section
= splt
;
1628 h
->root
.root
.u
.def
.value
= splt
->_raw_size
;
1631 splt
->_raw_size
+= M68K_PLT_ENTRY_SIZE
;
1633 /* We may also need a dynamic reloc entry. */
1634 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0)
1635 srel
->_raw_size
+= RELOC_STD_SIZE
;
1643 /* Scan the relocs for an input section using extended relocs. We
1644 need to figure out what to do for each reloc against a dynamic
1645 symbol. If the reloc is a WDISP30, and the symbol is in the .text
1646 section, an entry is made in the procedure linkage table.
1647 Otherwise, we must preserve the reloc as a dynamic reloc. */
1650 sunos_scan_ext_relocs (info
, abfd
, sec
, relocs
, rel_size
)
1651 struct bfd_link_info
*info
;
1654 const struct reloc_ext_external
*relocs
;
1655 bfd_size_type rel_size
;
1658 struct sunos_link_hash_entry
**sym_hashes
;
1659 const struct reloc_ext_external
*rel
, *relend
;
1660 asection
*splt
= NULL
;
1661 asection
*sgot
= NULL
;
1662 asection
*srel
= NULL
;
1664 /* We only know how to handle SPARC plt entries. */
1665 if (bfd_get_arch (abfd
) != bfd_arch_sparc
)
1667 bfd_set_error (bfd_error_invalid_target
);
1673 sym_hashes
= (struct sunos_link_hash_entry
**) obj_aout_sym_hashes (abfd
);
1675 relend
= relocs
+ rel_size
/ RELOC_EXT_SIZE
;
1676 for (rel
= relocs
; rel
< relend
; rel
++)
1678 unsigned int r_index
;
1681 struct sunos_link_hash_entry
*h
= NULL
;
1683 /* Swap in the reloc information. */
1684 if (abfd
->xvec
->header_byteorder_big_p
)
1686 r_index
= ((rel
->r_index
[0] << 16)
1687 | (rel
->r_index
[1] << 8)
1689 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_BIG
));
1690 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
1691 >> RELOC_EXT_BITS_TYPE_SH_BIG
);
1695 r_index
= ((rel
->r_index
[2] << 16)
1696 | (rel
->r_index
[1] << 8)
1698 r_extern
= (0 != (rel
->r_type
[0] & RELOC_EXT_BITS_EXTERN_LITTLE
));
1699 r_type
= ((rel
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
1700 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
);
1705 h
= sym_hashes
[r_index
];
1708 /* This should not normally happen, but it will in any
1709 case be caught in the relocation phase. */
1714 /* If this is a base relative reloc, we need to make an entry in
1715 the .got section. */
1716 if (r_type
== RELOC_BASE10
1717 || r_type
== RELOC_BASE13
1718 || r_type
== RELOC_BASE22
)
1722 if (! sunos_create_dynamic_sections (abfd
, info
, true))
1724 dynobj
= sunos_hash_table (info
)->dynobj
;
1725 splt
= bfd_get_section_by_name (dynobj
, ".plt");
1726 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1727 srel
= bfd_get_section_by_name (dynobj
, ".dynrel");
1728 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srel
!= NULL
);
1733 if (h
->got_offset
!= 0)
1736 h
->got_offset
= sgot
->_raw_size
;
1740 if (r_index
>= bfd_get_symcount (abfd
))
1742 /* This is abnormal, but should be caught in the
1743 relocation phase. */
1747 if (adata (abfd
).local_got_offsets
== NULL
)
1749 adata (abfd
).local_got_offsets
=
1750 (bfd_vma
*) bfd_zalloc (abfd
,
1751 (bfd_get_symcount (abfd
)
1752 * sizeof (bfd_vma
)));
1753 if (adata (abfd
).local_got_offsets
== NULL
)
1755 bfd_set_error (bfd_error_no_memory
);
1760 if (adata (abfd
).local_got_offsets
[r_index
] != 0)
1763 adata (abfd
).local_got_offsets
[r_index
] = sgot
->_raw_size
;
1766 sgot
->_raw_size
+= BYTES_IN_WORD
;
1768 /* If we are making a shared library, or if the symbol is
1769 defined by a dynamic object, we will need a dynamic reloc
1773 && (h
->flags
& SUNOS_DEF_DYNAMIC
) != 0
1774 && (h
->flags
& SUNOS_DEF_REGULAR
) == 0))
1775 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1780 /* Otherwise, we are only interested in relocs against symbols
1781 defined in dynamic objects but not in regular objects. We
1782 only need to consider relocs against external symbols. */
1785 /* But, if we are creating a shared library, we need to
1786 generate an absolute reloc. */
1791 if (! sunos_create_dynamic_sections (abfd
, info
, true))
1793 dynobj
= sunos_hash_table (info
)->dynobj
;
1794 splt
= bfd_get_section_by_name (dynobj
, ".plt");
1795 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1796 srel
= bfd_get_section_by_name (dynobj
, ".dynrel");
1797 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srel
!= NULL
);
1800 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1806 /* At this point common symbols have already been allocated, so
1807 we don't have to worry about them. We need to consider that
1808 we may have already seen this symbol and marked it undefined;
1809 if the symbol is really undefined, then SUNOS_DEF_DYNAMIC
1811 if (h
->root
.root
.type
!= bfd_link_hash_defined
1812 && h
->root
.root
.type
!= bfd_link_hash_defweak
1813 && h
->root
.root
.type
!= bfd_link_hash_undefined
)
1816 if (r_type
!= RELOC_JMP_TBL
1818 && ((h
->flags
& SUNOS_DEF_DYNAMIC
) == 0
1819 || (h
->flags
& SUNOS_DEF_REGULAR
) != 0))
1822 if (strcmp (h
->root
.root
.root
.string
, "__GLOBAL_OFFSET_TABLE_") == 0)
1827 if (! sunos_create_dynamic_sections (abfd
, info
, true))
1829 dynobj
= sunos_hash_table (info
)->dynobj
;
1830 splt
= bfd_get_section_by_name (dynobj
, ".plt");
1831 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1832 srel
= bfd_get_section_by_name (dynobj
, ".dynrel");
1833 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srel
!= NULL
);
1836 BFD_ASSERT (r_type
== RELOC_JMP_TBL
1837 || (h
->flags
& SUNOS_REF_REGULAR
) != 0);
1838 BFD_ASSERT (r_type
== RELOC_JMP_TBL
1840 || h
->plt_offset
!= 0
1841 || ((h
->root
.root
.type
== bfd_link_hash_defined
1842 || h
->root
.root
.type
== bfd_link_hash_defweak
)
1843 ? (h
->root
.root
.u
.def
.section
->owner
->flags
1845 : (h
->root
.root
.u
.undef
.abfd
->flags
& DYNAMIC
) != 0));
1847 /* This reloc is against a symbol defined only by a dynamic
1848 object, or it is a jump table reloc from PIC compiled code. */
1850 if (r_type
!= RELOC_JMP_TBL
1851 && h
->root
.root
.type
== bfd_link_hash_undefined
)
1853 /* Presumably this symbol was marked as being undefined by
1854 an earlier reloc. */
1855 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1857 else if (r_type
!= RELOC_JMP_TBL
1858 && (h
->root
.root
.u
.def
.section
->flags
& SEC_CODE
) == 0)
1862 /* This reloc is not in the .text section. It must be
1863 copied into the dynamic relocs. We mark the symbol as
1865 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1866 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0)
1868 sub
= h
->root
.root
.u
.def
.section
->owner
;
1869 h
->root
.root
.type
= bfd_link_hash_undefined
;
1870 h
->root
.root
.u
.undef
.abfd
= sub
;
1875 /* This symbol is in the .text section. We must give it an
1876 entry in the procedure linkage table, if we have not
1877 already done so. We change the definition of the symbol
1878 to the .plt section; this will cause relocs against it to
1879 be handled correctly. */
1880 if (h
->plt_offset
== 0)
1882 if (splt
->_raw_size
== 0)
1883 splt
->_raw_size
= SPARC_PLT_ENTRY_SIZE
;
1884 h
->plt_offset
= splt
->_raw_size
;
1886 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0)
1888 if (h
->root
.root
.type
== bfd_link_hash_undefined
)
1889 h
->root
.root
.type
= bfd_link_hash_defined
;
1890 h
->root
.root
.u
.def
.section
= splt
;
1891 h
->root
.root
.u
.def
.value
= splt
->_raw_size
;
1894 splt
->_raw_size
+= SPARC_PLT_ENTRY_SIZE
;
1896 /* We will also need a dynamic reloc entry, unless this
1897 is a JMP_TBL reloc produced by linking PIC compiled
1898 code, and we are not making a shared library. */
1899 if (info
->shared
|| (h
->flags
& SUNOS_DEF_REGULAR
) == 0)
1900 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1903 /* If we are creating a shared library, we need to copy over
1904 any reloc other than a jump table reloc. */
1905 if (info
->shared
&& r_type
!= RELOC_JMP_TBL
)
1906 srel
->_raw_size
+= RELOC_EXT_SIZE
;
1913 /* Build the hash table of dynamic symbols, and to mark as written all
1914 symbols from dynamic objects which we do not plan to write out. */
1917 sunos_scan_dynamic_symbol (h
, data
)
1918 struct sunos_link_hash_entry
*h
;
1921 struct bfd_link_info
*info
= (struct bfd_link_info
*) data
;
1923 /* Set the written flag for symbols we do not want to write out as
1924 part of the regular symbol table. This is all symbols which are
1925 not defined in a regular object file. For some reason symbols
1926 which are referenced by a regular object and defined by a dynamic
1927 object do not seem to show up in the regular symbol table. */
1928 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0
1929 && strcmp (h
->root
.root
.root
.string
, "__DYNAMIC") != 0)
1930 h
->root
.written
= true;
1932 /* If this symbol is defined by a dynamic object and referenced by a
1933 regular object, see whether we gave it a reasonable value while
1934 scanning the relocs. */
1936 if ((h
->flags
& SUNOS_DEF_REGULAR
) == 0
1937 && (h
->flags
& SUNOS_DEF_DYNAMIC
) != 0
1938 && (h
->flags
& SUNOS_REF_REGULAR
) != 0)
1940 if ((h
->root
.root
.type
== bfd_link_hash_defined
1941 || h
->root
.root
.type
== bfd_link_hash_defweak
)
1942 && ((h
->root
.root
.u
.def
.section
->owner
->flags
& DYNAMIC
) != 0)
1943 && h
->root
.root
.u
.def
.section
->output_section
== NULL
)
1947 /* This symbol is currently defined in a dynamic section
1948 which is not being put into the output file. This
1949 implies that there is no reloc against the symbol. I'm
1950 not sure why this case would ever occur. In any case, we
1951 change the symbol to be undefined. */
1952 sub
= h
->root
.root
.u
.def
.section
->owner
;
1953 h
->root
.root
.type
= bfd_link_hash_undefined
;
1954 h
->root
.root
.u
.undef
.abfd
= sub
;
1958 /* If this symbol is defined or referenced by a regular file, add it
1959 to the dynamic symbols. */
1960 if ((h
->flags
& (SUNOS_DEF_REGULAR
| SUNOS_REF_REGULAR
)) != 0)
1965 unsigned char *name
;
1969 BFD_ASSERT (h
->dynindx
== -2);
1971 dynobj
= sunos_hash_table (info
)->dynobj
;
1973 h
->dynindx
= sunos_hash_table (info
)->dynsymcount
;
1974 ++sunos_hash_table (info
)->dynsymcount
;
1976 len
= strlen (h
->root
.root
.root
.string
);
1978 /* We don't bother to construct a BFD hash table for the strings
1979 which are the names of the dynamic symbols. Using a hash
1980 table for the regular symbols is beneficial, because the
1981 regular symbols includes the debugging symbols, which have
1982 long names and are often duplicated in several object files.
1983 There are no debugging symbols in the dynamic symbols. */
1984 s
= bfd_get_section_by_name (dynobj
, ".dynstr");
1985 BFD_ASSERT (s
!= NULL
);
1986 if (s
->contents
== NULL
)
1987 contents
= (bfd_byte
*) malloc (len
+ 1);
1989 contents
= (bfd_byte
*) realloc (s
->contents
,
1990 (size_t) (s
->_raw_size
+ len
+ 1));
1991 if (contents
== NULL
)
1993 bfd_set_error (bfd_error_no_memory
);
1996 s
->contents
= contents
;
1998 h
->dynstr_index
= s
->_raw_size
;
1999 strcpy (contents
+ s
->_raw_size
, h
->root
.root
.root
.string
);
2000 s
->_raw_size
+= len
+ 1;
2002 /* Add it to the dynamic hash table. */
2003 name
= (unsigned char *) h
->root
.root
.root
.string
;
2005 while (*name
!= '\0')
2006 hash
= (hash
<< 1) + *name
++;
2008 hash
%= sunos_hash_table (info
)->bucketcount
;
2010 s
= bfd_get_section_by_name (dynobj
, ".hash");
2011 BFD_ASSERT (s
!= NULL
);
2013 if (GET_SWORD (dynobj
, s
->contents
+ hash
* HASH_ENTRY_SIZE
) == -1)
2014 PUT_WORD (dynobj
, h
->dynindx
, s
->contents
+ hash
* HASH_ENTRY_SIZE
);
2019 next
= GET_WORD (dynobj
,
2021 + hash
* HASH_ENTRY_SIZE
2023 PUT_WORD (dynobj
, s
->_raw_size
/ HASH_ENTRY_SIZE
,
2024 s
->contents
+ hash
* HASH_ENTRY_SIZE
+ BYTES_IN_WORD
);
2025 PUT_WORD (dynobj
, h
->dynindx
, s
->contents
+ s
->_raw_size
);
2026 PUT_WORD (dynobj
, next
, s
->contents
+ s
->_raw_size
+ BYTES_IN_WORD
);
2027 s
->_raw_size
+= HASH_ENTRY_SIZE
;
2034 /* Link a dynamic object. We actually don't have anything to do at
2035 this point. This entry point exists to prevent the regular linker
2036 code from doing anything with the object. */
2040 sunos_link_dynamic_object (info
, abfd
)
2041 struct bfd_link_info
*info
;
2047 /* Write out a dynamic symbol. This is called by the final traversal
2048 over the symbol table. */
2051 sunos_write_dynamic_symbol (output_bfd
, info
, harg
)
2053 struct bfd_link_info
*info
;
2054 struct aout_link_hash_entry
*harg
;
2056 struct sunos_link_hash_entry
*h
= (struct sunos_link_hash_entry
*) harg
;
2060 struct external_nlist
*outsym
;
2065 switch (h
->root
.root
.type
)
2068 case bfd_link_hash_new
:
2070 /* Avoid variable not initialized warnings. */
2072 case bfd_link_hash_undefined
:
2073 type
= N_UNDF
| N_EXT
;
2076 case bfd_link_hash_defined
:
2077 case bfd_link_hash_defweak
:
2080 asection
*output_section
;
2082 sec
= h
->root
.root
.u
.def
.section
;
2083 output_section
= sec
->output_section
;
2084 BFD_ASSERT (bfd_is_abs_section (output_section
)
2085 || output_section
->owner
== output_bfd
);
2086 if (h
->plt_offset
!= 0
2087 && (h
->flags
& SUNOS_DEF_REGULAR
) == 0)
2089 type
= N_UNDF
| N_EXT
;
2094 if (output_section
== obj_textsec (output_bfd
))
2095 type
= (h
->root
.root
.type
== bfd_link_hash_defined
2098 else if (output_section
== obj_datasec (output_bfd
))
2099 type
= (h
->root
.root
.type
== bfd_link_hash_defined
2102 else if (output_section
== obj_bsssec (output_bfd
))
2103 type
= (h
->root
.root
.type
== bfd_link_hash_defined
2107 type
= (h
->root
.root
.type
== bfd_link_hash_defined
2111 val
= (h
->root
.root
.u
.def
.value
2112 + output_section
->vma
2113 + sec
->output_offset
);
2117 case bfd_link_hash_common
:
2118 type
= N_UNDF
| N_EXT
;
2119 val
= h
->root
.root
.u
.c
.size
;
2121 case bfd_link_hash_undefweak
:
2125 case bfd_link_hash_indirect
:
2126 case bfd_link_hash_warning
:
2127 /* FIXME: Ignore these for now. The circumstances under which
2128 they should be written out are not clear to me. */
2132 s
= bfd_get_section_by_name (sunos_hash_table (info
)->dynobj
, ".dynsym");
2133 BFD_ASSERT (s
!= NULL
);
2134 outsym
= ((struct external_nlist
*)
2135 (s
->contents
+ h
->dynindx
* EXTERNAL_NLIST_SIZE
));
2137 bfd_h_put_8 (output_bfd
, type
, outsym
->e_type
);
2138 bfd_h_put_8 (output_bfd
, 0, outsym
->e_other
);
2140 /* FIXME: The native linker doesn't use 0 for desc. It seems to use
2141 one less than the desc value in the shared library, although that
2143 bfd_h_put_16 (output_bfd
, 0, outsym
->e_desc
);
2145 PUT_WORD (output_bfd
, h
->dynstr_index
, outsym
->e_strx
);
2146 PUT_WORD (output_bfd
, val
, outsym
->e_value
);
2148 /* If this symbol is in the procedure linkage table, fill in the
2150 if (h
->plt_offset
!= 0)
2158 dynobj
= sunos_hash_table (info
)->dynobj
;
2159 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2160 p
= splt
->contents
+ h
->plt_offset
;
2162 s
= bfd_get_section_by_name (dynobj
, ".dynrel");
2164 r_address
= (splt
->output_section
->vma
2165 + splt
->output_offset
2168 switch (bfd_get_arch (output_bfd
))
2170 case bfd_arch_sparc
:
2171 if (info
->shared
|| (h
->flags
& SUNOS_DEF_REGULAR
) == 0)
2173 bfd_put_32 (output_bfd
, SPARC_PLT_ENTRY_WORD0
, p
);
2174 bfd_put_32 (output_bfd
,
2175 (SPARC_PLT_ENTRY_WORD1
2176 + (((- (h
->plt_offset
+ 4) >> 2)
2179 bfd_put_32 (output_bfd
, SPARC_PLT_ENTRY_WORD2
+ s
->reloc_count
,
2186 val
= (h
->root
.root
.u
.def
.section
->output_section
->vma
2187 + h
->root
.root
.u
.def
.section
->output_offset
2188 + h
->root
.root
.u
.def
.value
);
2189 bfd_put_32 (output_bfd
,
2190 SPARC_PLT_PIC_WORD0
+ ((val
>> 10) & 0x3fffff),
2192 bfd_put_32 (output_bfd
,
2193 SPARC_PLT_PIC_WORD1
+ (val
& 0x3ff),
2195 bfd_put_32 (output_bfd
, SPARC_PLT_PIC_WORD2
, p
+ 8);
2200 if (! info
->shared
&& (h
->flags
& SUNOS_DEF_REGULAR
) != 0)
2202 bfd_put_16 (output_bfd
, M68K_PLT_ENTRY_WORD0
, p
);
2203 bfd_put_32 (output_bfd
, (- (h
->plt_offset
+ 2)), p
+ 2);
2204 bfd_put_16 (output_bfd
, s
->reloc_count
, p
+ 6);
2212 /* We also need to add a jump table reloc, unless this is the
2213 result of a JMP_TBL reloc from PIC compiled code. */
2214 if (info
->shared
|| (h
->flags
& SUNOS_DEF_REGULAR
) == 0)
2216 BFD_ASSERT (s
->reloc_count
* obj_reloc_entry_size (dynobj
)
2218 p
= s
->contents
+ s
->reloc_count
* obj_reloc_entry_size (output_bfd
);
2219 if (obj_reloc_entry_size (output_bfd
) == RELOC_STD_SIZE
)
2221 struct reloc_std_external
*srel
;
2223 srel
= (struct reloc_std_external
*) p
;
2224 PUT_WORD (output_bfd
, r_address
, srel
->r_address
);
2225 if (output_bfd
->xvec
->header_byteorder_big_p
)
2227 srel
->r_index
[0] = h
->dynindx
>> 16;
2228 srel
->r_index
[1] = h
->dynindx
>> 8;
2229 srel
->r_index
[2] = h
->dynindx
;
2230 srel
->r_type
[0] = (RELOC_STD_BITS_EXTERN_BIG
2231 | RELOC_STD_BITS_JMPTABLE_BIG
);
2235 srel
->r_index
[2] = h
->dynindx
>> 16;
2236 srel
->r_index
[1] = h
->dynindx
>> 8;
2237 srel
->r_index
[0] = h
->dynindx
;
2238 srel
->r_type
[0] = (RELOC_STD_BITS_EXTERN_LITTLE
2239 | RELOC_STD_BITS_JMPTABLE_LITTLE
);
2244 struct reloc_ext_external
*erel
;
2246 erel
= (struct reloc_ext_external
*) p
;
2247 PUT_WORD (output_bfd
, r_address
, erel
->r_address
);
2248 if (output_bfd
->xvec
->header_byteorder_big_p
)
2250 erel
->r_index
[0] = h
->dynindx
>> 16;
2251 erel
->r_index
[1] = h
->dynindx
>> 8;
2252 erel
->r_index
[2] = h
->dynindx
;
2254 (RELOC_EXT_BITS_EXTERN_BIG
2255 | (RELOC_JMP_SLOT
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
2259 erel
->r_index
[2] = h
->dynindx
>> 16;
2260 erel
->r_index
[1] = h
->dynindx
>> 8;
2261 erel
->r_index
[0] = h
->dynindx
;
2263 (RELOC_EXT_BITS_EXTERN_LITTLE
2264 | (RELOC_JMP_SLOT
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
));
2266 PUT_WORD (output_bfd
, (bfd_vma
) 0, erel
->r_addend
);
2276 /* This is called for each reloc against an external symbol. If this
2277 is a reloc which are are going to copy as a dynamic reloc, then
2278 copy it over, and tell the caller to not bother processing this
2283 sunos_check_dynamic_reloc (info
, input_bfd
, input_section
, harg
, reloc
,
2284 contents
, skip
, relocationp
)
2285 struct bfd_link_info
*info
;
2287 asection
*input_section
;
2288 struct aout_link_hash_entry
*harg
;
2292 bfd_vma
*relocationp
;
2294 struct sunos_link_hash_entry
*h
= (struct sunos_link_hash_entry
*) harg
;
2304 dynobj
= sunos_hash_table (info
)->dynobj
;
2306 if (h
!= NULL
&& h
->plt_offset
!= 0)
2310 /* Redirect the relocation to the PLT entry. */
2311 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2312 *relocationp
= (splt
->output_section
->vma
2313 + splt
->output_offset
2317 if (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
)
2319 struct reloc_std_external
*srel
;
2321 srel
= (struct reloc_std_external
*) reloc
;
2322 if (input_bfd
->xvec
->header_byteorder_big_p
)
2324 baserel
= (0 != (srel
->r_type
[0] & RELOC_STD_BITS_BASEREL_BIG
));
2325 jmptbl
= (0 != (srel
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_BIG
));
2329 baserel
= (0 != (srel
->r_type
[0] & RELOC_STD_BITS_BASEREL_LITTLE
));
2330 jmptbl
= (0 != (srel
->r_type
[0] & RELOC_STD_BITS_JMPTABLE_LITTLE
));
2335 struct reloc_ext_external
*erel
;
2338 erel
= (struct reloc_ext_external
*) reloc
;
2339 if (input_bfd
->xvec
->header_byteorder_big_p
)
2340 r_type
= ((erel
->r_type
[0] & RELOC_EXT_BITS_TYPE_BIG
)
2341 >> RELOC_EXT_BITS_TYPE_SH_BIG
);
2343 r_type
= ((erel
->r_type
[0] & RELOC_EXT_BITS_TYPE_LITTLE
)
2344 >> RELOC_EXT_BITS_TYPE_SH_LITTLE
);
2345 baserel
= (r_type
== RELOC_BASE10
2346 || r_type
== RELOC_BASE13
2347 || r_type
== RELOC_BASE22
);
2348 jmptbl
= r_type
== RELOC_JMP_TBL
;
2353 bfd_vma
*got_offsetp
;
2357 got_offsetp
= &h
->got_offset
;
2358 else if (adata (input_bfd
).local_got_offsets
== NULL
)
2362 struct reloc_std_external
*srel
;
2365 srel
= (struct reloc_std_external
*) reloc
;
2366 if (obj_reloc_entry_size (input_bfd
) == RELOC_STD_SIZE
)
2368 if (input_bfd
->xvec
->header_byteorder_big_p
)
2369 r_index
= ((srel
->r_index
[0] << 16)
2370 | (srel
->r_index
[1] << 8)
2371 | srel
->r_index
[2]);
2373 r_index
= ((srel
->r_index
[2] << 16)
2374 | (srel
->r_index
[1] << 8)
2375 | srel
->r_index
[0]);
2379 struct reloc_ext_external
*erel
;
2381 erel
= (struct reloc_ext_external
*) reloc
;
2382 if (input_bfd
->xvec
->header_byteorder_big_p
)
2383 r_index
= ((erel
->r_index
[0] << 16)
2384 | (erel
->r_index
[1] << 8)
2385 | erel
->r_index
[2]);
2387 r_index
= ((erel
->r_index
[2] << 16)
2388 | (erel
->r_index
[1] << 8)
2389 | erel
->r_index
[0]);
2392 got_offsetp
= adata (input_bfd
).local_got_offsets
+ r_index
;
2395 BFD_ASSERT (got_offsetp
!= NULL
&& *got_offsetp
!= 0);
2397 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2399 /* We set the least significant bit to indicate whether we have
2400 already initialized the GOT entry. */
2401 if ((*got_offsetp
& 1) == 0)
2405 && ((h
->flags
& SUNOS_DEF_DYNAMIC
) == 0
2406 || (h
->flags
& SUNOS_DEF_REGULAR
) != 0)))
2407 PUT_WORD (dynobj
, *relocationp
, sgot
->contents
+ *got_offsetp
);
2409 PUT_WORD (dynobj
, 0, sgot
->contents
+ *got_offsetp
);
2413 && (h
->flags
& SUNOS_DEF_DYNAMIC
) != 0
2414 && (h
->flags
& SUNOS_DEF_REGULAR
) == 0))
2416 /* We need to create a GLOB_DAT or 32 reloc to tell the
2417 dynamic linker to fill in this entry in the table. */
2419 s
= bfd_get_section_by_name (dynobj
, ".dynrel");
2420 BFD_ASSERT (s
!= NULL
);
2421 BFD_ASSERT (s
->reloc_count
* obj_reloc_entry_size (dynobj
)
2425 + s
->reloc_count
* obj_reloc_entry_size (dynobj
));
2432 if (obj_reloc_entry_size (dynobj
) == RELOC_STD_SIZE
)
2434 struct reloc_std_external
*srel
;
2436 srel
= (struct reloc_std_external
*) p
;
2439 + sgot
->output_section
->vma
2440 + sgot
->output_offset
),
2442 if (dynobj
->xvec
->header_byteorder_big_p
)
2444 srel
->r_index
[0] = indx
>> 16;
2445 srel
->r_index
[1] = indx
>> 8;
2446 srel
->r_index
[2] = indx
;
2448 srel
->r_type
[0] = 2 << RELOC_STD_BITS_LENGTH_SH_BIG
;
2451 (RELOC_STD_BITS_EXTERN_BIG
2452 | RELOC_STD_BITS_BASEREL_BIG
2453 | RELOC_STD_BITS_RELATIVE_BIG
2454 | (2 << RELOC_STD_BITS_LENGTH_SH_BIG
));
2458 srel
->r_index
[2] = indx
>> 16;
2459 srel
->r_index
[1] = indx
>> 8;
2460 srel
->r_index
[0] = indx
;
2462 srel
->r_type
[0] = 2 << RELOC_STD_BITS_LENGTH_SH_LITTLE
;
2465 (RELOC_STD_BITS_EXTERN_LITTLE
2466 | RELOC_STD_BITS_BASEREL_LITTLE
2467 | RELOC_STD_BITS_RELATIVE_LITTLE
2468 | (2 << RELOC_STD_BITS_LENGTH_SH_LITTLE
));
2473 struct reloc_ext_external
*erel
;
2475 erel
= (struct reloc_ext_external
*) p
;
2478 + sgot
->output_section
->vma
2479 + sgot
->output_offset
),
2481 if (dynobj
->xvec
->header_byteorder_big_p
)
2483 erel
->r_index
[0] = indx
>> 16;
2484 erel
->r_index
[1] = indx
>> 8;
2485 erel
->r_index
[2] = indx
;
2488 RELOC_32
<< RELOC_EXT_BITS_TYPE_SH_BIG
;
2491 (RELOC_EXT_BITS_EXTERN_BIG
2492 | (RELOC_GLOB_DAT
<< RELOC_EXT_BITS_TYPE_SH_BIG
));
2496 erel
->r_index
[2] = indx
>> 16;
2497 erel
->r_index
[1] = indx
>> 8;
2498 erel
->r_index
[0] = indx
;
2501 RELOC_32
<< RELOC_EXT_BITS_TYPE_SH_LITTLE
;
2504 (RELOC_EXT_BITS_EXTERN_LITTLE
2506 << RELOC_EXT_BITS_TYPE_SH_LITTLE
));
2508 PUT_WORD (dynobj
, 0, erel
->r_addend
);
2517 *relocationp
= sgot
->vma
+ (*got_offsetp
&~ 1);
2519 /* There is nothing else to do for a base relative reloc. */
2523 if (! sunos_hash_table (info
)->dynamic_sections_needed
)
2529 || h
->root
.root
.type
!= bfd_link_hash_undefined
2530 || (h
->flags
& SUNOS_DEF_REGULAR
) != 0
2531 || (h
->flags
& SUNOS_DEF_DYNAMIC
) == 0
2532 || (h
->root
.root
.u
.undef
.abfd
->flags
& DYNAMIC
) == 0)
2538 && (h
->dynindx
== -1
2540 || strcmp (h
->root
.root
.root
.string
,
2541 "__GLOBAL_OFFSET_TABLE_") == 0))
2545 /* It looks like this is a reloc we are supposed to copy. */
2547 s
= bfd_get_section_by_name (dynobj
, ".dynrel");
2548 BFD_ASSERT (s
!= NULL
);
2549 BFD_ASSERT (s
->reloc_count
* obj_reloc_entry_size (dynobj
) < s
->_raw_size
);
2551 p
= s
->contents
+ s
->reloc_count
* obj_reloc_entry_size (dynobj
);
2553 /* Copy the reloc over. */
2554 memcpy (p
, reloc
, obj_reloc_entry_size (dynobj
));
2561 /* Adjust the address and symbol index. */
2562 if (obj_reloc_entry_size (dynobj
) == RELOC_STD_SIZE
)
2564 struct reloc_std_external
*srel
;
2566 srel
= (struct reloc_std_external
*) p
;
2568 (GET_WORD (dynobj
, srel
->r_address
)
2569 + input_section
->output_section
->vma
2570 + input_section
->output_offset
),
2572 if (dynobj
->xvec
->header_byteorder_big_p
)
2574 srel
->r_index
[0] = indx
>> 16;
2575 srel
->r_index
[1] = indx
>> 8;
2576 srel
->r_index
[2] = indx
;
2580 srel
->r_index
[2] = indx
>> 16;
2581 srel
->r_index
[1] = indx
>> 8;
2582 srel
->r_index
[0] = indx
;
2587 struct reloc_ext_external
*erel
;
2589 erel
= (struct reloc_ext_external
*) p
;
2591 (GET_WORD (dynobj
, erel
->r_address
)
2592 + input_section
->output_section
->vma
2593 + input_section
->output_offset
),
2595 if (dynobj
->xvec
->header_byteorder_big_p
)
2597 erel
->r_index
[0] = indx
>> 16;
2598 erel
->r_index
[1] = indx
>> 8;
2599 erel
->r_index
[2] = indx
;
2603 erel
->r_index
[2] = indx
>> 16;
2604 erel
->r_index
[1] = indx
>> 8;
2605 erel
->r_index
[0] = indx
;
2617 /* Finish up the dynamic linking information. */
2620 sunos_finish_dynamic_link (abfd
, info
)
2622 struct bfd_link_info
*info
;
2628 struct external_sun4_dynamic esd
;
2629 struct external_sun4_dynamic_link esdl
;
2631 if (! sunos_hash_table (info
)->dynamic_sections_needed
)
2634 dynobj
= sunos_hash_table (info
)->dynobj
;
2636 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
2637 BFD_ASSERT (sdyn
!= NULL
);
2639 /* Finish up the .need section. The linker emulation code filled it
2640 in, but with offsets from the start of the section instead of
2641 real addresses. Now that we know the section location, we can
2642 fill in the final values. */
2643 s
= bfd_get_section_by_name (dynobj
, ".need");
2644 if (s
!= NULL
&& s
->_raw_size
!= 0)
2649 filepos
= s
->output_section
->filepos
+ s
->output_offset
;
2655 PUT_WORD (dynobj
, GET_WORD (dynobj
, p
) + filepos
, p
);
2656 val
= GET_WORD (dynobj
, p
+ 12);
2659 PUT_WORD (dynobj
, val
+ filepos
, p
+ 12);
2664 /* The first entry in the .got section is the address of the
2665 dynamic information, unless this is a shared library. */
2666 s
= bfd_get_section_by_name (dynobj
, ".got");
2667 BFD_ASSERT (s
!= NULL
);
2669 PUT_WORD (dynobj
, 0, s
->contents
);
2671 PUT_WORD (dynobj
, sdyn
->output_section
->vma
+ sdyn
->output_offset
,
2674 for (o
= dynobj
->sections
; o
!= NULL
; o
= o
->next
)
2676 if ((o
->flags
& SEC_HAS_CONTENTS
) != 0
2677 && o
->contents
!= NULL
)
2679 BFD_ASSERT (o
->output_section
!= NULL
2680 && o
->output_section
->owner
== abfd
);
2681 if (! bfd_set_section_contents (abfd
, o
->output_section
,
2682 o
->contents
, o
->output_offset
,
2688 /* Finish up the dynamic link information. */
2689 PUT_WORD (dynobj
, (bfd_vma
) 3, esd
.ld_version
);
2691 sdyn
->output_section
->vma
+ sdyn
->output_offset
+ sizeof esd
,
2694 (sdyn
->output_section
->vma
2695 + sdyn
->output_offset
2697 + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE
),
2700 if (! bfd_set_section_contents (abfd
, sdyn
->output_section
, &esd
,
2701 sdyn
->output_offset
, sizeof esd
))
2705 PUT_WORD (dynobj
, (bfd_vma
) 0, esdl
.ld_loaded
);
2707 s
= bfd_get_section_by_name (dynobj
, ".need");
2708 if (s
== NULL
|| s
->_raw_size
== 0)
2709 PUT_WORD (dynobj
, (bfd_vma
) 0, esdl
.ld_need
);
2711 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2714 s
= bfd_get_section_by_name (dynobj
, ".rules");
2715 if (s
== NULL
|| s
->_raw_size
== 0)
2716 PUT_WORD (dynobj
, (bfd_vma
) 0, esdl
.ld_rules
);
2718 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2721 s
= bfd_get_section_by_name (dynobj
, ".got");
2722 BFD_ASSERT (s
!= NULL
);
2723 PUT_WORD (dynobj
, s
->output_section
->vma
+ s
->output_offset
, esdl
.ld_got
);
2725 s
= bfd_get_section_by_name (dynobj
, ".plt");
2726 BFD_ASSERT (s
!= NULL
);
2727 PUT_WORD (dynobj
, s
->output_section
->vma
+ s
->output_offset
, esdl
.ld_plt
);
2728 PUT_WORD (dynobj
, s
->_raw_size
, esdl
.ld_plt_sz
);
2730 s
= bfd_get_section_by_name (dynobj
, ".dynrel");
2731 BFD_ASSERT (s
!= NULL
);
2732 BFD_ASSERT (s
->reloc_count
* obj_reloc_entry_size (dynobj
) == s
->_raw_size
);
2733 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2736 s
= bfd_get_section_by_name (dynobj
, ".hash");
2737 BFD_ASSERT (s
!= NULL
);
2738 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2741 s
= bfd_get_section_by_name (dynobj
, ".dynsym");
2742 BFD_ASSERT (s
!= NULL
);
2743 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2746 PUT_WORD (dynobj
, (bfd_vma
) 0, esdl
.ld_stab_hash
);
2748 PUT_WORD (dynobj
, (bfd_vma
) sunos_hash_table (info
)->bucketcount
,
2751 s
= bfd_get_section_by_name (dynobj
, ".dynstr");
2752 BFD_ASSERT (s
!= NULL
);
2753 PUT_WORD (dynobj
, s
->output_section
->filepos
+ s
->output_offset
,
2755 PUT_WORD (dynobj
, s
->_raw_size
, esdl
.ld_symb_size
);
2757 /* The size of the text area is the size of the .text section
2758 rounded up to a page boundary. FIXME: Should the page size be
2759 conditional on something? */
2761 BFD_ALIGN (obj_textsec (abfd
)->_raw_size
, 0x2000),
2764 if (! bfd_set_section_contents (abfd
, sdyn
->output_section
, &esdl
,
2765 (sdyn
->output_offset
2767 + EXTERNAL_SUN4_DYNAMIC_DEBUGGER_SIZE
),
2771 abfd
->flags
|= DYNAMIC
;