1 /* BFD back-end for National Semiconductor's CR16 ELF
2 Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
3 Written by M R Swami Reddy.
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 3 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 Foundation,
19 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
25 #include "libiberty.h"
29 /* The cr16 linker needs to keep track of the number of relocs that
30 it decides to copy in check_relocs for each symbol. This is so
31 that it can discard PC relative relocs if it doesn't need them when
32 linking with -Bsymbolic. We store the information in a field
33 extending the regular ELF linker hash table. */
35 struct elf32_cr16_link_hash_entry {
36 /* The basic elf link hash table entry. */
37 struct elf_link_hash_entry root;
39 /* For function symbols, the number of times this function is
40 called directly (ie by name). */
41 unsigned int direct_calls;
43 /* For function symbols, the size of this function's stack
44 (if <= 255 bytes). We stuff this into "call" instructions
45 to this target when it's valid and profitable to do so.
47 This does not include stack allocated by movm! */
48 unsigned char stack_size;
50 /* For function symbols, arguments (if any) for movm instruction
51 in the prologue. We stuff this value into "call" instructions
52 to the target when it's valid and profitable to do so. */
53 unsigned char movm_args;
55 /* For function symbols, the amount of stack space that would be allocated
56 by the movm instruction. This is redundant with movm_args, but we
57 add it to the hash table to avoid computing it over and over. */
58 unsigned char movm_stack_size;
60 /* Used to mark functions which have had redundant parts of their
62 #define CR16_DELETED_PROLOGUE_BYTES 0x1
65 /* Calculated value. */
69 /* We derive a hash table from the main elf linker hash table so
70 we can store state variables and a secondary hash table without
71 resorting to global variables. */
72 struct elf32_cr16_link_hash_table {
73 /* The main hash table. */
74 struct elf_link_hash_table root;
76 /* A hash table for static functions. We could derive a new hash table
77 instead of using the full elf32_cr16_link_hash_table if we wanted
78 to save some memory. */
79 struct elf32_cr16_link_hash_table *static_hash_table;
81 /* Random linker state flags. */
82 #define CR16_HASH_ENTRIES_INITIALIZED 0x1
86 /* For CR16 linker hash table. */
88 /* Get the CR16 ELF linker hash table from a link_info structure. */
90 #define elf32_cr16_hash_table(p) \
91 ((struct elf32_cr16_link_hash_table *) ((p)->hash))
93 #define elf32_cr16_link_hash_traverse(table, func, info) \
94 (elf_link_hash_traverse \
96 (bfd_boolean (*) ((struct elf_link_hash_entry *, void *))) (func), (info)))
98 /* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
100 struct cr16_reloc_map
102 bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
103 unsigned short cr16_reloc_type; /* CR16 relocation type. */
106 static const struct cr16_reloc_map cr16_reloc_map[R_CR16_MAX] =
108 {BFD_RELOC_NONE, R_CR16_NONE},
109 {BFD_RELOC_CR16_NUM8, R_CR16_NUM8},
110 {BFD_RELOC_CR16_NUM16, R_CR16_NUM16},
111 {BFD_RELOC_CR16_NUM32, R_CR16_NUM32},
112 {BFD_RELOC_CR16_NUM32a, R_CR16_NUM32a},
113 {BFD_RELOC_CR16_REGREL4, R_CR16_REGREL4},
114 {BFD_RELOC_CR16_REGREL4a, R_CR16_REGREL4a},
115 {BFD_RELOC_CR16_REGREL14, R_CR16_REGREL14},
116 {BFD_RELOC_CR16_REGREL14a, R_CR16_REGREL14a},
117 {BFD_RELOC_CR16_REGREL16, R_CR16_REGREL16},
118 {BFD_RELOC_CR16_REGREL20, R_CR16_REGREL20},
119 {BFD_RELOC_CR16_REGREL20a, R_CR16_REGREL20a},
120 {BFD_RELOC_CR16_ABS20, R_CR16_ABS20},
121 {BFD_RELOC_CR16_ABS24, R_CR16_ABS24},
122 {BFD_RELOC_CR16_IMM4, R_CR16_IMM4},
123 {BFD_RELOC_CR16_IMM8, R_CR16_IMM8},
124 {BFD_RELOC_CR16_IMM16, R_CR16_IMM16},
125 {BFD_RELOC_CR16_IMM20, R_CR16_IMM20},
126 {BFD_RELOC_CR16_IMM24, R_CR16_IMM24},
127 {BFD_RELOC_CR16_IMM32, R_CR16_IMM32},
128 {BFD_RELOC_CR16_IMM32a, R_CR16_IMM32a},
129 {BFD_RELOC_CR16_DISP4, R_CR16_DISP4},
130 {BFD_RELOC_CR16_DISP8, R_CR16_DISP8},
131 {BFD_RELOC_CR16_DISP16, R_CR16_DISP16},
132 {BFD_RELOC_CR16_DISP24, R_CR16_DISP24},
133 {BFD_RELOC_CR16_DISP24a, R_CR16_DISP24a},
134 {BFD_RELOC_CR16_SWITCH8, R_CR16_SWITCH8},
135 {BFD_RELOC_CR16_SWITCH16, R_CR16_SWITCH16},
136 {BFD_RELOC_CR16_SWITCH32, R_CR16_SWITCH32},
137 {BFD_RELOC_CR16_GOT_REGREL20, R_CR16_GOT_REGREL20},
138 {BFD_RELOC_CR16_GOTC_REGREL20, R_CR16_GOTC_REGREL20},
139 {BFD_RELOC_CR16_GLOB_DAT, R_CR16_GLOB_DAT}
142 static reloc_howto_type cr16_elf_howto_table[] =
144 HOWTO (R_CR16_NONE, /* type */
148 FALSE, /* pc_relative */
150 complain_overflow_dont, /* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_CR16_NONE", /* name */
153 FALSE, /* partial_inplace */
156 FALSE), /* pcrel_offset */
158 HOWTO (R_CR16_NUM8, /* type */
162 FALSE, /* pc_relative */
164 complain_overflow_bitfield,/* complain_on_overflow */
165 bfd_elf_generic_reloc, /* special_function */
166 "R_CR16_NUM8", /* name */
167 FALSE, /* partial_inplace */
170 FALSE), /* pcrel_offset */
172 HOWTO (R_CR16_NUM16, /* type */
176 FALSE, /* pc_relative */
178 complain_overflow_bitfield,/* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_CR16_NUM16", /* name */
181 FALSE, /* partial_inplace */
183 0xffff, /* dst_mask */
184 FALSE), /* pcrel_offset */
186 HOWTO (R_CR16_NUM32, /* type */
190 FALSE, /* pc_relative */
192 complain_overflow_bitfield,/* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_CR16_NUM32", /* name */
195 FALSE, /* partial_inplace */
197 0xffffffff, /* dst_mask */
198 FALSE), /* pcrel_offset */
200 HOWTO (R_CR16_NUM32a, /* type */
204 FALSE, /* pc_relative */
206 complain_overflow_bitfield,/* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_CR16_NUM32a", /* name */
209 FALSE, /* partial_inplace */
211 0xffffffff, /* dst_mask */
212 FALSE), /* pcrel_offset */
214 HOWTO (R_CR16_REGREL4, /* type */
218 FALSE, /* pc_relative */
220 complain_overflow_bitfield,/* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_CR16_REGREL4", /* name */
223 FALSE, /* partial_inplace */
226 FALSE), /* pcrel_offset */
228 HOWTO (R_CR16_REGREL4a, /* type */
232 FALSE, /* pc_relative */
234 complain_overflow_bitfield,/* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_CR16_REGREL4a", /* name */
237 FALSE, /* partial_inplace */
240 FALSE), /* pcrel_offset */
242 HOWTO (R_CR16_REGREL14, /* type */
246 FALSE, /* pc_relative */
248 complain_overflow_bitfield,/* complain_on_overflow */
249 bfd_elf_generic_reloc, /* special_function */
250 "R_CR16_REGREL14", /* name */
251 FALSE, /* partial_inplace */
253 0x3fff, /* dst_mask */
254 FALSE), /* pcrel_offset */
256 HOWTO (R_CR16_REGREL14a, /* type */
260 FALSE, /* pc_relative */
262 complain_overflow_bitfield,/* complain_on_overflow */
263 bfd_elf_generic_reloc, /* special_function */
264 "R_CR16_REGREL14a", /* name */
265 FALSE, /* partial_inplace */
267 0x3fff, /* dst_mask */
268 FALSE), /* pcrel_offset */
270 HOWTO (R_CR16_REGREL16, /* type */
274 FALSE, /* pc_relative */
276 complain_overflow_bitfield,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_CR16_REGREL16", /* name */
279 FALSE, /* partial_inplace */
281 0xffff, /* dst_mask */
282 FALSE), /* pcrel_offset */
284 HOWTO (R_CR16_REGREL20, /* type */
288 FALSE, /* pc_relative */
290 complain_overflow_bitfield,/* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_CR16_REGREL20", /* name */
293 FALSE, /* partial_inplace */
295 0xfffff, /* dst_mask */
296 FALSE), /* pcrel_offset */
298 HOWTO (R_CR16_REGREL20a, /* type */
302 FALSE, /* pc_relative */
304 complain_overflow_bitfield,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_CR16_REGREL20a", /* name */
307 FALSE, /* partial_inplace */
309 0xfffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
312 HOWTO (R_CR16_ABS20, /* type */
316 FALSE, /* pc_relative */
318 complain_overflow_bitfield,/* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_CR16_ABS20", /* name */
321 FALSE, /* partial_inplace */
323 0xfffff, /* dst_mask */
324 FALSE), /* pcrel_offset */
326 HOWTO (R_CR16_ABS24, /* type */
330 FALSE, /* pc_relative */
332 complain_overflow_bitfield,/* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_CR16_ABS24", /* name */
335 FALSE, /* partial_inplace */
337 0xffffff, /* dst_mask */
338 FALSE), /* pcrel_offset */
340 HOWTO (R_CR16_IMM4, /* type */
344 FALSE, /* pc_relative */
346 complain_overflow_bitfield,/* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_CR16_IMM4", /* name */
349 FALSE, /* partial_inplace */
352 FALSE), /* pcrel_offset */
354 HOWTO (R_CR16_IMM8, /* type */
358 FALSE, /* pc_relative */
360 complain_overflow_bitfield,/* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_CR16_IMM8", /* name */
363 FALSE, /* partial_inplace */
366 FALSE), /* pcrel_offset */
368 HOWTO (R_CR16_IMM16, /* type */
372 FALSE, /* pc_relative */
374 complain_overflow_bitfield,/* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_CR16_IMM16", /* name */
377 FALSE, /* partial_inplace */
379 0xffff, /* dst_mask */
380 FALSE), /* pcrel_offset */
382 HOWTO (R_CR16_IMM20, /* type */
386 FALSE, /* pc_relative */
388 complain_overflow_bitfield,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_CR16_IMM20", /* name */
391 FALSE, /* partial_inplace */
393 0xfffff, /* dst_mask */
394 FALSE), /* pcrel_offset */
396 HOWTO (R_CR16_IMM24, /* type */
400 FALSE, /* pc_relative */
402 complain_overflow_bitfield,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_CR16_IMM24", /* name */
405 FALSE, /* partial_inplace */
407 0xffffff, /* dst_mask */
408 FALSE), /* pcrel_offset */
410 HOWTO (R_CR16_IMM32, /* type */
414 FALSE, /* pc_relative */
416 complain_overflow_bitfield,/* complain_on_overflow */
417 bfd_elf_generic_reloc, /* special_function */
418 "R_CR16_IMM32", /* name */
419 FALSE, /* partial_inplace */
421 0xffffffff, /* dst_mask */
422 FALSE), /* pcrel_offset */
424 HOWTO (R_CR16_IMM32a, /* type */
428 FALSE, /* pc_relative */
430 complain_overflow_bitfield,/* complain_on_overflow */
431 bfd_elf_generic_reloc, /* special_function */
432 "R_CR16_IMM32a", /* name */
433 FALSE, /* partial_inplace */
435 0xffffffff, /* dst_mask */
436 FALSE), /* pcrel_offset */
438 HOWTO (R_CR16_DISP4, /* type */
440 0, /* size (0 = byte, 1 = short, 2 = long) */
442 TRUE, /* pc_relative */
444 complain_overflow_unsigned, /* complain_on_overflow */
445 bfd_elf_generic_reloc, /* special_function */
446 "R_CR16_DISP4", /* name */
447 FALSE, /* partial_inplace */
450 FALSE), /* pcrel_offset */
452 HOWTO (R_CR16_DISP8, /* type */
454 0, /* size (0 = byte, 1 = short, 2 = long) */
456 TRUE, /* pc_relative */
458 complain_overflow_unsigned, /* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_CR16_DISP8", /* name */
461 FALSE, /* partial_inplace */
463 0x1ff, /* dst_mask */
464 FALSE), /* pcrel_offset */
466 HOWTO (R_CR16_DISP16, /* type */
467 0, /* rightshift REVIITS: To sync with WinIDEA*/
468 1, /* size (0 = byte, 1 = short, 2 = long) */
470 TRUE, /* pc_relative */
472 complain_overflow_unsigned, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_CR16_DISP16", /* name */
475 FALSE, /* partial_inplace */
477 0x1ffff, /* dst_mask */
478 FALSE), /* pcrel_offset */
479 /* REVISIT: DISP24 should be left-shift by 2 as per ISA doc
480 but its not done, to sync with WinIDEA and CR16 4.1 tools */
481 HOWTO (R_CR16_DISP24, /* type */
483 2, /* size (0 = byte, 1 = short, 2 = long) */
485 TRUE, /* pc_relative */
487 complain_overflow_unsigned, /* complain_on_overflow */
488 bfd_elf_generic_reloc, /* special_function */
489 "R_CR16_DISP24", /* name */
490 FALSE, /* partial_inplace */
492 0x1ffffff, /* dst_mask */
493 FALSE), /* pcrel_offset */
495 HOWTO (R_CR16_DISP24a, /* type */
497 2, /* size (0 = byte, 1 = short, 2 = long) */
499 TRUE, /* pc_relative */
501 complain_overflow_unsigned, /* complain_on_overflow */
502 bfd_elf_generic_reloc, /* special_function */
503 "R_CR16_DISP24a", /* name */
504 FALSE, /* partial_inplace */
506 0xffffff, /* dst_mask */
507 FALSE), /* pcrel_offset */
509 /* An 8 bit switch table entry. This is generated for an expression
510 such as ``.byte L1 - L2''. The offset holds the difference
511 between the reloc address and L2. */
512 HOWTO (R_CR16_SWITCH8, /* type */
514 0, /* size (0 = byte, 1 = short, 2 = long) */
516 FALSE, /* pc_relative */
518 complain_overflow_unsigned, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
520 "R_CR16_SWITCH8", /* name */
521 FALSE, /* partial_inplace */
524 TRUE), /* pcrel_offset */
526 /* A 16 bit switch table entry. This is generated for an expression
527 such as ``.word L1 - L2''. The offset holds the difference
528 between the reloc address and L2. */
529 HOWTO (R_CR16_SWITCH16, /* type */
531 1, /* size (0 = byte, 1 = short, 2 = long) */
533 FALSE, /* pc_relative */
535 complain_overflow_unsigned, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_CR16_SWITCH16", /* name */
538 FALSE, /* partial_inplace */
540 0xffff, /* dst_mask */
541 TRUE), /* pcrel_offset */
543 /* A 32 bit switch table entry. This is generated for an expression
544 such as ``.long L1 - L2''. The offset holds the difference
545 between the reloc address and L2. */
546 HOWTO (R_CR16_SWITCH32, /* type */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
550 FALSE, /* pc_relative */
552 complain_overflow_unsigned, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_CR16_SWITCH32", /* name */
555 FALSE, /* partial_inplace */
557 0xffffffff, /* dst_mask */
558 TRUE), /* pcrel_offset */
560 HOWTO (R_CR16_GOT_REGREL20, /* type */
564 FALSE, /* pc_relative */
566 complain_overflow_bitfield,/* complain_on_overflow */
567 bfd_elf_generic_reloc, /* special_function */
568 "R_CR16_GOT_REGREL20", /* name */
569 TRUE, /* partial_inplace */
571 0xfffff, /* dst_mask */
572 FALSE), /* pcrel_offset */
574 HOWTO (R_CR16_GOTC_REGREL20, /* type */
578 FALSE, /* pc_relative */
580 complain_overflow_bitfield,/* complain_on_overflow */
581 bfd_elf_generic_reloc, /* special_function */
582 "R_CR16_GOTC_REGREL20", /* name */
583 TRUE, /* partial_inplace */
585 0xfffff, /* dst_mask */
586 FALSE), /* pcrel_offset */
588 HOWTO (R_CR16_GLOB_DAT, /* type */
590 2, /* size (0 = byte, 1 = short, 2 = long) */
592 FALSE, /* pc_relative */
594 complain_overflow_unsigned, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_CR16_GLOB_DAT", /* name */
597 FALSE, /* partial_inplace */
599 0xffffffff, /* dst_mask */
600 TRUE) /* pcrel_offset */
604 /* Create the GOT section. */
607 _bfd_cr16_elf_create_got_section (bfd * abfd, struct bfd_link_info * info)
611 struct elf_link_hash_entry * h;
612 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
615 /* This function may be called more than once. */
616 if (bfd_get_section_by_name (abfd, ".got") != NULL)
619 switch (bed->s->arch_size)
630 bfd_set_error (bfd_error_bad_value);
634 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
635 | SEC_LINKER_CREATED);
637 s = bfd_make_section_with_flags (abfd, ".got", flags);
639 || ! bfd_set_section_alignment (abfd, s, ptralign))
642 if (bed->want_got_plt)
644 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
646 || ! bfd_set_section_alignment (abfd, s, ptralign))
650 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
651 (or .got.plt) section. We don't do this in the linker script
652 because we don't want to define the symbol if we are not creating
653 a global offset table. */
654 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
655 elf_hash_table (info)->hgot = h;
659 /* The first bit of the global offset table is the header. */
660 s->size += bed->got_header_size;
666 /* Retrieve a howto ptr using a BFD reloc_code. */
668 static reloc_howto_type *
669 elf_cr16_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
670 bfd_reloc_code_real_type code)
674 for (i = 0; i < R_CR16_MAX; i++)
675 if (code == cr16_reloc_map[i].bfd_reloc_enum)
676 return &cr16_elf_howto_table[cr16_reloc_map[i].cr16_reloc_type];
678 _bfd_error_handler ("Unsupported CR16 relocation type: 0x%x\n", code);
682 static reloc_howto_type *
683 elf_cr16_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
688 for (i = 0; ARRAY_SIZE (cr16_elf_howto_table); i++)
689 if (cr16_elf_howto_table[i].name != NULL
690 && strcasecmp (cr16_elf_howto_table[i].name, r_name) == 0)
691 return cr16_elf_howto_table + i;
696 /* Retrieve a howto ptr using an internal relocation entry. */
699 elf_cr16_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
700 Elf_Internal_Rela *dst)
702 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
704 BFD_ASSERT (r_type < (unsigned int) R_CR16_MAX);
705 cache_ptr->howto = cr16_elf_howto_table + r_type;
708 /* Look through the relocs for a section during the first phase.
709 Since we don't do .gots or .plts, we just need to consider the
710 virtual table relocs for gc. */
713 cr16_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
714 const Elf_Internal_Rela *relocs)
716 Elf_Internal_Shdr *symtab_hdr;
717 Elf_Internal_Sym * isymbuf = NULL;
718 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
719 const Elf_Internal_Rela *rel;
720 const Elf_Internal_Rela *rel_end;
722 bfd_vma * local_got_offsets;
728 bfd_boolean result = FALSE;
730 if (info->relocatable)
733 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
734 sym_hashes = elf_sym_hashes (abfd);
735 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
736 if (!elf_bad_symtab (abfd))
737 sym_hashes_end -= symtab_hdr->sh_info;
739 dynobj = elf_hash_table (info)->dynobj;
740 local_got_offsets = elf_local_got_offsets (abfd);
741 rel_end = relocs + sec->reloc_count;
742 for (rel = relocs; rel < rel_end; rel++)
744 struct elf_link_hash_entry *h;
745 unsigned long r_symndx;
747 r_symndx = ELF32_R_SYM (rel->r_info);
748 if (r_symndx < symtab_hdr->sh_info)
752 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
753 while (h->root.type == bfd_link_hash_indirect
754 || h->root.type == bfd_link_hash_warning)
755 h = (struct elf_link_hash_entry *) h->root.u.i.link;
758 /* Some relocs require a global offset table. */
761 switch (ELF32_R_TYPE (rel->r_info))
763 case R_CR16_GOT_REGREL20:
764 case R_CR16_GOTC_REGREL20:
765 elf_hash_table (info)->dynobj = dynobj = abfd;
766 if (! _bfd_cr16_elf_create_got_section (dynobj, info))
775 switch (ELF32_R_TYPE (rel->r_info))
777 case R_CR16_GOT_REGREL20:
778 case R_CR16_GOTC_REGREL20:
779 /* This symbol requires a global offset table entry. */
783 sgot = bfd_get_section_by_name (dynobj, ".got");
784 BFD_ASSERT (sgot != NULL);
788 && (h != NULL || info->executable))
790 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
793 srelgot = bfd_make_section_with_flags (dynobj,
802 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
809 if (h->got.offset != (bfd_vma) -1)
810 /* We have already allocated space in the .got. */
813 h->got.offset = sgot->size;
815 /* Make sure this symbol is output as a dynamic symbol. */
816 if (h->dynindx == -1)
818 if (! bfd_elf_link_record_dynamic_symbol (info, h))
822 srelgot->size += sizeof (Elf32_External_Rela);
826 /* This is a global offset table entry for a local
828 if (local_got_offsets == NULL)
833 size = symtab_hdr->sh_info * sizeof (bfd_vma);
834 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
836 if (local_got_offsets == NULL)
839 elf_local_got_offsets (abfd) = local_got_offsets;
841 for (i = 0; i < symtab_hdr->sh_info; i++)
842 local_got_offsets[i] = (bfd_vma) -1;
845 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
846 /* We have already allocated space in the .got. */
849 local_got_offsets[r_symndx] = sgot->size;
851 if (info->executable)
852 /* If we are generating a shared object, we need to
853 output a R_CR16_RELATIVE reloc so that the dynamic
854 linker can adjust this GOT entry. */
855 srelgot->size += sizeof (Elf32_External_Rela);
872 /* Perform a relocation as part of a final link. */
874 static bfd_reloc_status_type
875 cr16_elf_final_link_relocate (reloc_howto_type *howto,
877 bfd *output_bfd ATTRIBUTE_UNUSED,
878 asection *input_section,
883 struct elf_link_hash_entry * h,
884 unsigned long symndx ATTRIBUTE_UNUSED,
885 struct bfd_link_info *info ATTRIBUTE_UNUSED,
886 asection *sec ATTRIBUTE_UNUSED,
887 int is_local ATTRIBUTE_UNUSED)
889 unsigned short r_type = howto->type;
890 bfd_byte *hit_data = contents + offset;
891 bfd_vma reloc_bits, check, Rvalue1;
894 bfd_vma * local_got_offsets;
897 dynobj = elf_hash_table (info)->dynobj;
898 local_got_offsets = elf_local_got_offsets (input_bfd);
915 case R_CR16_REGREL4a:
916 case R_CR16_REGREL14:
917 case R_CR16_REGREL14a:
918 case R_CR16_REGREL16:
919 case R_CR16_REGREL20:
920 case R_CR16_REGREL20a:
921 case R_CR16_GOT_REGREL20:
922 case R_CR16_GOTC_REGREL20:
926 /* 'hit_data' is relative to the start of the instruction, not the
927 relocation offset. Advance it to account for the exact offset. */
947 case R_CR16_SWITCH16:
948 case R_CR16_SWITCH32:
949 /* We only care about the addend, where the difference between
950 expressions is kept. */
957 if (howto->pc_relative)
959 /* Subtract the address of the section containing the location. */
960 Rvalue -= (input_section->output_section->vma
961 + input_section->output_offset);
962 /* Subtract the position of the location within the section. */
966 /* Add in supplied addend. */
969 /* Complain if the bitfield overflows, whether it is considered
970 as signed or unsigned. */
971 check = Rvalue >> howto->rightshift;
973 /* Assumes two's complement. This expression avoids
974 overflow if howto->bitsize is the number of bits in
976 reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
978 /* For GOT and GOTC relocs no boundary checks applied. */
979 if (!((r_type == R_CR16_GOT_REGREL20)
980 || (r_type == R_CR16_GOTC_REGREL20)))
982 if (((bfd_vma) check & ~reloc_bits) != 0
983 && (((bfd_vma) check & ~reloc_bits)
984 != (-(bfd_vma) 1 & ~reloc_bits)))
986 /* The above right shift is incorrect for a signed
987 value. See if turning on the upper bits fixes the
989 if (howto->rightshift && (bfd_signed_vma) Rvalue < 0)
991 check |= ((bfd_vma) - 1
993 >> howto->rightshift));
995 if (((bfd_vma) check & ~reloc_bits)
996 != (-(bfd_vma) 1 & ~reloc_bits))
997 return bfd_reloc_overflow;
1000 return bfd_reloc_overflow;
1003 /* Drop unwanted bits from the value we are relocating to. */
1004 Rvalue >>= (bfd_vma) howto->rightshift;
1006 /* Apply dst_mask to select only relocatable part of the insn. */
1007 Rvalue &= howto->dst_mask;
1010 switch (howto->size)
1013 if (r_type == R_CR16_DISP8)
1015 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1016 Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00)
1017 | (Rvalue1 & 0x00f0) | (Rvalue & 0xf));
1018 bfd_put_16 (input_bfd, Rvalue, hit_data);
1020 else if (r_type == R_CR16_IMM4)
1022 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1023 Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0)
1024 | ((Rvalue1 & 0x0f00) >> 8));
1025 bfd_put_16 (input_bfd, Rvalue, hit_data);
1027 else if (r_type == R_CR16_DISP4)
1029 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1030 Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4));
1031 bfd_put_16 (input_bfd, Rvalue, hit_data);
1035 bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data);
1040 if (r_type == R_CR16_DISP16)
1042 Rvalue |= (bfd_get_16 (input_bfd, hit_data));
1043 Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1));
1045 if (r_type == R_CR16_IMM16)
1047 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1049 /* Add or subtract the offset value. */
1050 if (Rvalue1 & 0x8000)
1051 Rvalue -= (~Rvalue1 + 1) & 0xffff;
1055 /* Check for range. */
1056 if ((long) Rvalue > 0xffff || (long) Rvalue < 0x0)
1057 return bfd_reloc_overflow;
1060 bfd_put_16 (input_bfd, Rvalue, hit_data);
1064 if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20))
1066 Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2)
1067 | (((bfd_get_16 (input_bfd, hit_data) & 0xf) <<16)));
1069 /* Add or subtract the offset value. */
1070 if (Rvalue1 & 0x80000)
1071 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1075 /* Check for range. */
1076 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1077 return bfd_reloc_overflow;
1079 bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0)
1080 | ((Rvalue >> 16) & 0xf)), hit_data);
1081 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1083 else if (r_type == R_CR16_GOT_REGREL20)
1085 asection * sgot = bfd_get_section_by_name (dynobj, ".got");
1091 off = h->got.offset;
1092 BFD_ASSERT (off != (bfd_vma) -1);
1094 if (! elf_hash_table (info)->dynamic_sections_created
1095 || SYMBOL_REFERENCES_LOCAL (info, h))
1096 /* This is actually a static link, or it is a
1097 -Bsymbolic link and the symbol is defined
1098 locally, or the symbol was forced to be local
1099 because of a version file. We must initialize
1100 this entry in the global offset table.
1101 When doing a dynamic link, we create a .rela.got
1102 relocation entry to initialize the value. This
1103 is done in the finish_dynamic_symbol routine. */
1104 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1106 Rvalue = sgot->output_offset + off;
1112 off = elf_local_got_offsets (input_bfd)[symndx];
1113 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1115 Rvalue = sgot->output_offset + off;
1120 /* REVISIT: if ((long) Rvalue > 0xffffff ||
1121 (long) Rvalue < -0x800000). */
1122 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1123 return bfd_reloc_overflow;
1126 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1127 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1128 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1131 else if (r_type == R_CR16_GOTC_REGREL20)
1134 sgot = bfd_get_section_by_name (dynobj, ".got");
1140 off = h->got.offset;
1141 BFD_ASSERT (off != (bfd_vma) -1);
1143 Rvalue >>=1; /* For code symbols. */
1145 if (! elf_hash_table (info)->dynamic_sections_created
1146 || SYMBOL_REFERENCES_LOCAL (info, h))
1147 /* This is actually a static link, or it is a
1148 -Bsymbolic link and the symbol is defined
1149 locally, or the symbol was forced to be local
1150 because of a version file. We must initialize
1151 this entry in the global offset table.
1152 When doing a dynamic link, we create a .rela.got
1153 relocation entry to initialize the value. This
1154 is done in the finish_dynamic_symbol routine. */
1155 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1157 Rvalue = sgot->output_offset + off;
1163 off = elf_local_got_offsets (input_bfd)[symndx];
1165 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1166 Rvalue = sgot->output_offset + off;
1171 /* Check if any value in DISP. */
1172 Rvalue1 =((bfd_get_32 (input_bfd, hit_data) >>16)
1173 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1175 /* Add or subtract the offset value. */
1176 if (Rvalue1 & 0x80000)
1177 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1181 /* Check for range. */
1182 /* REVISIT: if ((long) Rvalue > 0xffffff
1183 || (long) Rvalue < -0x800000). */
1184 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1185 return bfd_reloc_overflow;
1187 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1188 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1189 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1193 if (r_type == R_CR16_ABS24)
1195 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1196 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)
1197 | (((bfd_get_32 (input_bfd, hit_data) & 0xf) <<20)));
1199 /* Add or subtract the offset value. */
1200 if (Rvalue1 & 0x800000)
1201 Rvalue -= (~Rvalue1 + 1) & 0xffffff;
1205 /* Check for Range. */
1206 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0x0)
1207 return bfd_reloc_overflow;
1209 Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8)
1210 | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0))
1211 | ((Rvalue & 0xffff) << 16));
1213 else if (r_type == R_CR16_DISP24)
1215 Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1216 | (bfd_get_16 (input_bfd, hit_data)))
1217 | (((Rvalue & 0xfffe) | ((Rvalue >> 24) & 0x1)) << 16));
1219 else if ((r_type == R_CR16_IMM32) || (r_type == R_CR16_IMM32a))
1221 Rvalue1 =((((bfd_get_32 (input_bfd, hit_data)) >> 16) &0xffff)
1222 | (((bfd_get_32 (input_bfd, hit_data)) &0xffff)) << 16);
1224 /* Add or subtract the offset value. */
1225 if (Rvalue1 & 0x80000000)
1226 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1230 /* Check for range. */
1231 if (Rvalue > 0xffffffff || (long) Rvalue < 0x0)
1232 return bfd_reloc_overflow;
1234 Rvalue = (((Rvalue >> 16)& 0xffff) | (Rvalue & 0xffff) << 16);
1236 else if (r_type == R_CR16_DISP24a)
1238 Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23)));
1239 Rvalue = ((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16)
1240 | (bfd_get_32 (input_bfd, hit_data));
1242 else if ((r_type == R_CR16_REGREL20)
1243 || (r_type == R_CR16_REGREL20a))
1245 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1246 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1247 /* Add or subtract the offset value. */
1248 if (Rvalue1 & 0x80000)
1249 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1253 /* Check for range. */
1254 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1255 return bfd_reloc_overflow;
1257 Rvalue = (((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1258 | ((Rvalue & 0xffff) << 16)))
1259 | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff));
1262 else if (r_type == R_CR16_NUM32)
1264 Rvalue1 = (bfd_get_32 (input_bfd, hit_data));
1266 /* Add or subtract the offset value */
1267 if (Rvalue1 & 0x80000000)
1268 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1272 /* Check for Ranga */
1273 if (Rvalue > 0xffffffff)
1274 return bfd_reloc_overflow;
1277 bfd_put_32 (input_bfd, Rvalue, hit_data);
1282 return bfd_reloc_notsupported;
1285 return bfd_reloc_ok;
1288 /* Delete some bytes from a section while relaxing. */
1291 elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
1292 asection *sec, bfd_vma addr, int count)
1294 Elf_Internal_Shdr *symtab_hdr;
1295 unsigned int sec_shndx;
1297 Elf_Internal_Rela *irel, *irelend;
1298 Elf_Internal_Rela *irelalign;
1300 Elf_Internal_Sym *isym;
1301 Elf_Internal_Sym *isymend;
1302 struct elf_link_hash_entry **sym_hashes;
1303 struct elf_link_hash_entry **end_hashes;
1304 struct elf_link_hash_entry **start_hashes;
1305 unsigned int symcount;
1307 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1309 contents = elf_section_data (sec)->this_hdr.contents;
1311 /* The deletion must stop at the next ALIGN reloc for an aligment
1312 power larger than the number of bytes we are deleting. */
1316 irel = elf_section_data (sec)->relocs;
1317 irelend = irel + sec->reloc_count;
1319 /* Actually delete the bytes. */
1320 memmove (contents + addr, contents + addr + count,
1321 (size_t) (toaddr - addr - count));
1324 /* Adjust all the relocs. */
1325 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1326 /* Get the new reloc address. */
1327 if ((irel->r_offset > addr && irel->r_offset < toaddr))
1328 irel->r_offset -= count;
1330 /* Adjust the local symbols defined in this section. */
1331 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1332 isym = (Elf_Internal_Sym *) symtab_hdr->contents;
1333 for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
1335 if (isym->st_shndx == sec_shndx
1336 && isym->st_value > addr
1337 && isym->st_value < toaddr)
1339 /* Adjust the addend of SWITCH relocations in this section,
1340 which reference this local symbol. */
1342 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1344 unsigned long r_symndx;
1345 Elf_Internal_Sym *rsym;
1346 bfd_vma addsym, subsym;
1348 /* Skip if not a SWITCH relocation. */
1349 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8
1350 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16
1351 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32)
1354 r_symndx = ELF32_R_SYM (irel->r_info);
1355 rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx;
1357 /* Skip if not the local adjusted symbol. */
1361 addsym = isym->st_value;
1362 subsym = addsym - irel->r_addend;
1364 /* Fix the addend only when -->> (addsym > addr >= subsym). */
1366 irel->r_addend -= count;
1372 isym->st_value -= count;
1376 /* Now adjust the global symbols defined in this section. */
1377 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1378 - symtab_hdr->sh_info);
1379 sym_hashes = start_hashes = elf_sym_hashes (abfd);
1380 end_hashes = sym_hashes + symcount;
1382 for (; sym_hashes < end_hashes; sym_hashes++)
1384 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1386 /* The '--wrap SYMBOL' option is causing a pain when the object file,
1387 containing the definition of __wrap_SYMBOL, includes a direct
1388 call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
1389 the same symbol (which is __wrap_SYMBOL), but still exist as two
1390 different symbols in 'sym_hashes', we don't want to adjust
1391 the global symbol __wrap_SYMBOL twice.
1392 This check is only relevant when symbols are being wrapped. */
1393 if (link_info->wrap_hash != NULL)
1395 struct elf_link_hash_entry **cur_sym_hashes;
1397 /* Loop only over the symbols whom been already checked. */
1398 for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
1400 /* If the current symbol is identical to 'sym_hash', that means
1401 the symbol was already adjusted (or at least checked). */
1402 if (*cur_sym_hashes == sym_hash)
1405 /* Don't adjust the symbol again. */
1406 if (cur_sym_hashes < sym_hashes)
1410 if ((sym_hash->root.type == bfd_link_hash_defined
1411 || sym_hash->root.type == bfd_link_hash_defweak)
1412 && sym_hash->root.u.def.section == sec
1413 && sym_hash->root.u.def.value > addr
1414 && sym_hash->root.u.def.value < toaddr)
1415 sym_hash->root.u.def.value -= count;
1421 /* Relocate a CR16 ELF section. */
1424 elf32_cr16_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
1425 bfd *input_bfd, asection *input_section,
1426 bfd_byte *contents, Elf_Internal_Rela *relocs,
1427 Elf_Internal_Sym *local_syms,
1428 asection **local_sections)
1430 Elf_Internal_Shdr *symtab_hdr;
1431 struct elf_link_hash_entry **sym_hashes;
1432 Elf_Internal_Rela *rel, *relend;
1434 if (info->relocatable)
1437 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1438 sym_hashes = elf_sym_hashes (input_bfd);
1441 relend = relocs + input_section->reloc_count;
1442 for (; rel < relend; rel++)
1445 reloc_howto_type *howto;
1446 unsigned long r_symndx;
1447 Elf_Internal_Sym *sym;
1449 struct elf_link_hash_entry *h;
1451 bfd_reloc_status_type r;
1453 r_symndx = ELF32_R_SYM (rel->r_info);
1454 r_type = ELF32_R_TYPE (rel->r_info);
1455 howto = cr16_elf_howto_table + (r_type);
1460 if (r_symndx < symtab_hdr->sh_info)
1462 sym = local_syms + r_symndx;
1463 sec = local_sections[r_symndx];
1464 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1468 bfd_boolean unresolved_reloc, warned;
1470 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1471 r_symndx, symtab_hdr, sym_hashes,
1473 unresolved_reloc, warned);
1476 r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd,
1478 contents, rel->r_offset,
1479 relocation, rel->r_addend,
1480 (struct elf_link_hash_entry *) h,
1482 info, sec, h == NULL);
1484 if (r != bfd_reloc_ok)
1487 const char *msg = NULL;
1490 name = h->root.root.string;
1493 name = (bfd_elf_string_from_elf_section
1494 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1495 if (name == NULL || *name == '\0')
1496 name = bfd_section_name (input_bfd, sec);
1501 case bfd_reloc_overflow:
1502 if (!((*info->callbacks->reloc_overflow)
1503 (info, (h ? &h->root : NULL), name, howto->name,
1504 (bfd_vma) 0, input_bfd, input_section,
1509 case bfd_reloc_undefined:
1510 if (!((*info->callbacks->undefined_symbol)
1511 (info, name, input_bfd, input_section,
1512 rel->r_offset, TRUE)))
1516 case bfd_reloc_outofrange:
1517 msg = _("internal error: out of range error");
1520 case bfd_reloc_notsupported:
1521 msg = _("internal error: unsupported relocation error");
1524 case bfd_reloc_dangerous:
1525 msg = _("internal error: dangerous error");
1529 msg = _("internal error: unknown error");
1533 if (!((*info->callbacks->warning)
1534 (info, msg, name, input_bfd, input_section,
1545 /* This is a version of bfd_generic_get_relocated_section_contents
1546 which uses elf32_cr16_relocate_section. */
1549 elf32_cr16_get_relocated_section_contents (bfd *output_bfd,
1550 struct bfd_link_info *link_info,
1551 struct bfd_link_order *link_order,
1553 bfd_boolean relocatable,
1556 Elf_Internal_Shdr *symtab_hdr;
1557 asection *input_section = link_order->u.indirect.section;
1558 bfd *input_bfd = input_section->owner;
1559 asection **sections = NULL;
1560 Elf_Internal_Rela *internal_relocs = NULL;
1561 Elf_Internal_Sym *isymbuf = NULL;
1563 /* We only need to handle the case of relaxing, or of having a
1564 particular set of section contents, specially. */
1566 || elf_section_data (input_section)->this_hdr.contents == NULL)
1567 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
1572 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1574 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
1575 (size_t) input_section->size);
1577 if ((input_section->flags & SEC_RELOC) != 0
1578 && input_section->reloc_count > 0)
1580 Elf_Internal_Sym *isym;
1581 Elf_Internal_Sym *isymend;
1585 internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
1587 if (internal_relocs == NULL)
1590 if (symtab_hdr->sh_info != 0)
1592 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1593 if (isymbuf == NULL)
1594 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
1595 symtab_hdr->sh_info, 0,
1597 if (isymbuf == NULL)
1601 amt = symtab_hdr->sh_info;
1602 amt *= sizeof (asection *);
1603 sections = bfd_malloc (amt);
1604 if (sections == NULL && amt != 0)
1607 isymend = isymbuf + symtab_hdr->sh_info;
1608 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
1612 if (isym->st_shndx == SHN_UNDEF)
1613 isec = bfd_und_section_ptr;
1614 else if (isym->st_shndx == SHN_ABS)
1615 isec = bfd_abs_section_ptr;
1616 else if (isym->st_shndx == SHN_COMMON)
1617 isec = bfd_com_section_ptr;
1619 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
1624 if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd,
1625 input_section, data, internal_relocs,
1629 if (sections != NULL)
1632 && symtab_hdr->contents != (unsigned char *) isymbuf)
1634 if (elf_section_data (input_section)->relocs != internal_relocs)
1635 free (internal_relocs);
1641 if (sections != NULL)
1644 && symtab_hdr->contents != (unsigned char *) isymbuf)
1646 if (internal_relocs != NULL
1647 && elf_section_data (input_section)->relocs != internal_relocs)
1648 free (internal_relocs);
1652 /* Assorted hash table functions. */
1654 /* Initialize an entry in the link hash table. */
1656 /* Create an entry in an CR16 ELF linker hash table. */
1658 static struct bfd_hash_entry *
1659 elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry,
1660 struct bfd_hash_table *table,
1663 struct elf32_cr16_link_hash_entry *ret =
1664 (struct elf32_cr16_link_hash_entry *) entry;
1666 /* Allocate the structure if it has not already been allocated by a
1668 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1669 ret = ((struct elf32_cr16_link_hash_entry *)
1670 bfd_hash_allocate (table,
1671 sizeof (struct elf32_cr16_link_hash_entry)));
1672 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1673 return (struct bfd_hash_entry *) ret;
1675 /* Call the allocation method of the superclass. */
1676 ret = ((struct elf32_cr16_link_hash_entry *)
1677 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1679 if (ret != (struct elf32_cr16_link_hash_entry *) NULL)
1681 ret->direct_calls = 0;
1682 ret->stack_size = 0;
1684 ret->movm_stack_size = 0;
1689 return (struct bfd_hash_entry *) ret;
1692 /* Create an cr16 ELF linker hash table. */
1694 static struct bfd_link_hash_table *
1695 elf32_cr16_link_hash_table_create (bfd *abfd)
1697 struct elf32_cr16_link_hash_table *ret;
1698 bfd_size_type amt = sizeof (struct elf32_cr16_link_hash_table);
1700 ret = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
1701 if (ret == (struct elf32_cr16_link_hash_table *) NULL)
1704 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1705 elf32_cr16_link_hash_newfunc,
1706 sizeof (struct elf32_cr16_link_hash_entry)))
1713 amt = sizeof (struct elf_link_hash_table);
1714 ret->static_hash_table
1715 = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
1716 if (ret->static_hash_table == NULL)
1722 if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd,
1723 elf32_cr16_link_hash_newfunc,
1724 sizeof (struct elf32_cr16_link_hash_entry)))
1726 free (ret->static_hash_table);
1730 return &ret->root.root;
1733 /* Free an cr16 ELF linker hash table. */
1736 elf32_cr16_link_hash_table_free (struct bfd_link_hash_table *hash)
1738 struct elf32_cr16_link_hash_table *ret
1739 = (struct elf32_cr16_link_hash_table *) hash;
1741 _bfd_generic_link_hash_table_free
1742 ((struct bfd_link_hash_table *) ret->static_hash_table);
1743 _bfd_generic_link_hash_table_free
1744 ((struct bfd_link_hash_table *) ret);
1747 static unsigned long
1748 elf_cr16_mach (flagword flags)
1754 return bfd_mach_cr16;
1758 /* The final processing done just before writing out a CR16 ELF object
1759 file. This gets the CR16 architecture right based on the machine
1763 _bfd_cr16_elf_final_write_processing (bfd *abfd,
1764 bfd_boolean linker ATTRIBUTE_UNUSED)
1767 switch (bfd_get_mach (abfd))
1776 elf_elfheader (abfd)->e_flags |= val;
1781 _bfd_cr16_elf_object_p (bfd *abfd)
1783 bfd_default_set_arch_mach (abfd, bfd_arch_cr16,
1784 elf_cr16_mach (elf_elfheader (abfd)->e_flags));
1788 /* Merge backend specific data from an object file to the output
1789 object file when linking. */
1792 _bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
1794 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1795 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1798 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
1799 && bfd_get_mach (obfd) < bfd_get_mach (ibfd))
1801 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
1802 bfd_get_mach (ibfd)))
1810 /* This function handles relaxing for the CR16.
1812 There's quite a few relaxing opportunites available on the CR16:
1814 * bcond:24 -> bcond:16 1 byte
1815 * bcond:16 -> bcond:8 1 byte
1816 * arithmetic imm32 -> arithmetic imm20 12 bits
1817 * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits
1819 Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */
1822 elf32_cr16_relax_section (bfd *abfd, asection *sec,
1823 struct bfd_link_info *link_info, bfd_boolean *again)
1825 Elf_Internal_Shdr *symtab_hdr;
1826 Elf_Internal_Rela *internal_relocs;
1827 Elf_Internal_Rela *irel, *irelend;
1828 bfd_byte *contents = NULL;
1829 Elf_Internal_Sym *isymbuf = NULL;
1831 /* Assume nothing changes. */
1834 /* We don't have to do anything for a relocatable link, if
1835 this section does not have relocs, or if this is not a
1837 if (link_info->relocatable
1838 || (sec->flags & SEC_RELOC) == 0
1839 || sec->reloc_count == 0
1840 || (sec->flags & SEC_CODE) == 0)
1843 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1845 /* Get a copy of the native relocations. */
1846 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
1847 link_info->keep_memory);
1848 if (internal_relocs == NULL)
1851 /* Walk through them looking for relaxing opportunities. */
1852 irelend = internal_relocs + sec->reloc_count;
1853 for (irel = internal_relocs; irel < irelend; irel++)
1857 /* If this isn't something that can be relaxed, then ignore
1859 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16
1860 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24
1861 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32
1862 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20
1863 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16)
1866 /* Get the section contents if we haven't done so already. */
1867 if (contents == NULL)
1869 /* Get cached copy if it exists. */
1870 if (elf_section_data (sec)->this_hdr.contents != NULL)
1871 contents = elf_section_data (sec)->this_hdr.contents;
1872 /* Go get them off disk. */
1873 else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
1877 /* Read this BFD's local symbols if we haven't done so already. */
1878 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
1880 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1881 if (isymbuf == NULL)
1882 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
1883 symtab_hdr->sh_info, 0,
1885 if (isymbuf == NULL)
1889 /* Get the value of the symbol referred to by the reloc. */
1890 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
1892 /* A local symbol. */
1893 Elf_Internal_Sym *isym;
1896 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1897 if (isym->st_shndx == SHN_UNDEF)
1898 sym_sec = bfd_und_section_ptr;
1899 else if (isym->st_shndx == SHN_ABS)
1900 sym_sec = bfd_abs_section_ptr;
1901 else if (isym->st_shndx == SHN_COMMON)
1902 sym_sec = bfd_com_section_ptr;
1904 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1905 symval = (isym->st_value
1906 + sym_sec->output_section->vma
1907 + sym_sec->output_offset);
1912 struct elf_link_hash_entry *h;
1914 /* An external symbol. */
1915 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1916 h = elf_sym_hashes (abfd)[indx];
1917 BFD_ASSERT (h != NULL);
1919 if (h->root.type != bfd_link_hash_defined
1920 && h->root.type != bfd_link_hash_defweak)
1921 /* This appears to be a reference to an undefined
1922 symbol. Just ignore it--it will be caught by the
1923 regular reloc processing. */
1926 symval = (h->root.u.def.value
1927 + h->root.u.def.section->output_section->vma
1928 + h->root.u.def.section->output_offset);
1931 /* For simplicity of coding, we are going to modify the section
1932 contents, the section relocs, and the BFD symbol table. We
1933 must tell the rest of the code not to free up this
1934 information. It would be possible to instead create a table
1935 of changes which have to be made, as is done in coff-mips.c;
1936 that would be more work, but would require less memory when
1937 the linker is run. */
1939 /* Try to turn a 24 branch/call into a 16bit relative
1941 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24)
1943 bfd_vma value = symval;
1945 /* Deal with pc-relative gunk. */
1946 value -= (sec->output_section->vma + sec->output_offset);
1947 value -= irel->r_offset;
1948 value += irel->r_addend;
1950 /* See if the value will fit in 16 bits, note the high value is
1951 0xfffe + 2 as the target will be two bytes closer if we are
1953 if ((long) value < 0x10000 && (long) value > -0x10002)
1957 /* Get the opcode. */
1958 code = (unsigned int) bfd_get_32 (abfd, contents + irel->r_offset);
1960 /* Verify it's a 'bcond' and fix the opcode. */
1961 if ((code & 0xffff) == 0x0010)
1962 bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), contents + irel->r_offset);
1966 /* Note that we've changed the relocs, section contents, etc. */
1967 elf_section_data (sec)->relocs = internal_relocs;
1968 elf_section_data (sec)->this_hdr.contents = contents;
1969 symtab_hdr->contents = (unsigned char *) isymbuf;
1971 /* Fix the relocation's type. */
1972 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1975 /* Delete two bytes of data. */
1976 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
1977 irel->r_offset + 2, 2))
1980 /* That will change things, so, we should relax again.
1981 Note that this is not required, and it may be slow. */
1986 /* Try to turn a 16bit pc-relative branch into an
1987 8bit pc-relative branch. */
1988 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16)
1990 bfd_vma value = symval;
1992 /* Deal with pc-relative gunk. */
1993 value -= (sec->output_section->vma + sec->output_offset);
1994 value -= irel->r_offset;
1995 value += irel->r_addend;
1997 /* See if the value will fit in 8 bits, note the high value is
1998 0xfc + 2 as the target will be two bytes closer if we are
2000 /*if ((long) value < 0x1fa && (long) value > -0x100) REVISIT:range */
2001 if ((long) value < 0xfa && (long) value > -0x100)
2003 unsigned short code;
2005 /* Get the opcode. */
2006 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2008 /* Verify it's a 'bcond' and fix the opcode. */
2009 if ((code & 0xff0f) == 0x1800)
2010 bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset);
2014 /* Note that we've changed the relocs, section contents, etc. */
2015 elf_section_data (sec)->relocs = internal_relocs;
2016 elf_section_data (sec)->this_hdr.contents = contents;
2017 symtab_hdr->contents = (unsigned char *) isymbuf;
2019 /* Fix the relocation's type. */
2020 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2023 /* Delete two bytes of data. */
2024 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2025 irel->r_offset + 2, 2))
2028 /* That will change things, so, we should relax again.
2029 Note that this is not required, and it may be slow. */
2034 /* Try to turn a 32-bit IMM address into a 20/16-bit IMM address */
2035 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32)
2037 bfd_vma value = symval;
2038 unsigned short is_add_mov = 0;
2041 /* Get the existing value from the mcode */
2042 value1 = ((bfd_get_32 (abfd, contents + irel->r_offset + 2) >> 16)
2043 |(((bfd_get_32 (abfd, contents + irel->r_offset + 2) & 0xffff) << 16)));
2045 /* See if the value will fit in 20 bits. */
2046 if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 0)
2048 unsigned short code;
2050 /* Get the opcode. */
2051 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2053 /* Verify it's a 'arithmetic ADDD or MOVD instruction'.
2054 For ADDD and MOVD only, convert to IMM32 -> IMM20. */
2056 if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020))
2061 /* Note that we've changed the relocs, section contents,
2063 elf_section_data (sec)->relocs = internal_relocs;
2064 elf_section_data (sec)->this_hdr.contents = contents;
2065 symtab_hdr->contents = (unsigned char *) isymbuf;
2067 /* Fix the opcode. */
2068 if ((code & 0xfff0) == 0x0070) /* For movd. */
2069 bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1);
2070 else /* code == 0x0020 for addd. */
2071 bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1);
2073 bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset);
2075 /* If existing value is nagavive adjust approriately
2076 place the 16-20bits (ie 4 bit) in new opcode,
2077 as the 0xffffxxxx, the higher 2 byte values removed. */
2078 if (value1 & 0x80000000)
2079 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2081 bfd_put_8 (abfd, (((value1 >> 16)&0xf) | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2083 /* Fix the relocation's type. */
2084 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2087 /* Delete two bytes of data. */
2088 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2089 irel->r_offset + 2, 2))
2092 /* That will change things, so, we should relax again.
2093 Note that this is not required, and it may be slow. */
2098 /* See if the value will fit in 16 bits. */
2100 && ((long)(value + value1) < 0x7fff && (long)(value + value1) > 0))
2102 unsigned short code;
2104 /* Get the opcode. */
2105 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2107 /* Note that we've changed the relocs, section contents, etc. */
2108 elf_section_data (sec)->relocs = internal_relocs;
2109 elf_section_data (sec)->this_hdr.contents = contents;
2110 symtab_hdr->contents = (unsigned char *) isymbuf;
2112 /* Fix the opcode. */
2113 if ((code & 0xf0) == 0x70) /* For movd. */
2114 bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1);
2115 else if ((code & 0xf0) == 0x20) /* For addd. */
2116 bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1);
2117 else if ((code & 0xf0) == 0x90) /* For cmpd. */
2118 bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1);
2122 bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset);
2124 /* If existing value is nagavive adjust approriately
2125 place the 12-16bits (ie 4 bit) in new opcode,
2126 as the 0xfffffxxx, the higher 2 byte values removed. */
2127 if (value1 & 0x80000000)
2128 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2130 bfd_put_16 (abfd, value1, contents + irel->r_offset + 2);
2133 /* Fix the relocation's type. */
2134 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2137 /* Delete two bytes of data. */
2138 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2139 irel->r_offset + 2, 2))
2142 /* That will change things, so, we should relax again.
2143 Note that this is not required, and it may be slow. */
2149 /* Try to turn a 16bit immediate address into a 4bit
2150 immediate address. */
2151 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
2152 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16))
2154 bfd_vma value = symval;
2157 /* Get the existing value from the mcode */
2158 value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff));
2160 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
2162 value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) & 0xf000) << 0x4);
2165 /* See if the value will fit in 4 bits. */
2166 if ((((long) (value + value1)) < 0xf)
2167 && (((long) (value + value1)) > 0))
2169 unsigned short code;
2171 /* Get the opcode. */
2172 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2174 /* Note that we've changed the relocs, section contents, etc. */
2175 elf_section_data (sec)->relocs = internal_relocs;
2176 elf_section_data (sec)->this_hdr.contents = contents;
2177 symtab_hdr->contents = (unsigned char *) isymbuf;
2179 /* Fix the opcode. */
2180 if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500))
2182 if ((code & 0x0f00) == 0x0400) /* For movd imm20. */
2183 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2184 else /* For addd imm20. */
2185 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2186 bfd_put_8 (abfd, (code & 0xf0) >> 4, contents + irel->r_offset + 1);
2190 if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */
2191 bfd_put_8 (abfd, 0x56, contents + irel->r_offset);
2192 else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */
2193 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2194 else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */
2195 bfd_put_8 (abfd, 0x58, contents + irel->r_offset);
2196 else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */
2197 bfd_put_8 (abfd, 0x5A, contents + irel->r_offset);
2198 else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */
2199 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2200 else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */
2201 bfd_put_8 (abfd, 0x30, contents + irel->r_offset);
2202 else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */
2203 bfd_put_8 (abfd, 0x2C, contents + irel->r_offset);
2204 else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */
2205 bfd_put_8 (abfd, 0x32, contents + irel->r_offset);
2206 else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */
2207 bfd_put_8 (abfd, 0x38, contents + irel->r_offset);
2208 else if ((code & 0xfff0) == 0x3Cb0) /* For subcb imm16. */
2209 bfd_put_8 (abfd, 0x3C, contents + irel->r_offset);
2210 else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */
2211 bfd_put_8 (abfd, 0x3F, contents + irel->r_offset);
2212 else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */
2213 bfd_put_8 (abfd, 0x3A, contents + irel->r_offset);
2214 else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */
2215 bfd_put_8 (abfd, 0x50, contents + irel->r_offset);
2216 else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */
2217 bfd_put_8 (abfd, 0x52, contents + irel->r_offset);
2221 bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1);
2224 /* Fix the relocation's type. */
2225 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2228 /* Delete two bytes of data. */
2229 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2230 irel->r_offset + 2, 2))
2233 /* That will change things, so, we should relax again.
2234 Note that this is not required, and it may be slow. */
2242 && symtab_hdr->contents != (unsigned char *) isymbuf)
2244 if (! link_info->keep_memory)
2247 /* Cache the symbols for elf_link_input_bfd. */
2248 symtab_hdr->contents = (unsigned char *) isymbuf;
2251 if (contents != NULL
2252 && elf_section_data (sec)->this_hdr.contents != contents)
2254 if (! link_info->keep_memory)
2257 /* Cache the section contents for elf_link_input_bfd. */
2258 elf_section_data (sec)->this_hdr.contents = contents;
2262 if (internal_relocs != NULL
2263 && elf_section_data (sec)->relocs != internal_relocs)
2264 free (internal_relocs);
2270 && symtab_hdr->contents != (unsigned char *) isymbuf)
2272 if (contents != NULL
2273 && elf_section_data (sec)->this_hdr.contents != contents)
2275 if (internal_relocs != NULL
2276 && elf_section_data (sec)->relocs != internal_relocs)
2277 free (internal_relocs);
2283 elf32_cr16_gc_mark_hook (asection *sec,
2284 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2285 Elf_Internal_Rela *rel ATTRIBUTE_UNUSED,
2286 struct elf_link_hash_entry *h,
2287 Elf_Internal_Sym *sym)
2290 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2292 switch (h->root.type)
2294 case bfd_link_hash_defined:
2295 case bfd_link_hash_defweak:
2296 return h->root.u.def.section;
2298 case bfd_link_hash_common:
2299 return h->root.u.c.p->section;
2306 /* Update the got entry reference counts for the section being removed. */
2309 elf32_cr16_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2310 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2311 asection *sec ATTRIBUTE_UNUSED,
2312 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2314 /* We don't support garbage collection of GOT and PLT relocs yet. */
2318 /* Create dynamic sections when linking against a dynamic object. */
2321 _bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2325 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
2328 switch (bed->s->arch_size)
2339 bfd_set_error (bfd_error_bad_value);
2343 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2344 .rel[a].bss sections. */
2346 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2347 | SEC_LINKER_CREATED);
2349 s = bfd_make_section_with_flags (abfd,
2350 (bed->default_use_rela_p
2351 ? ".rela.plt" : ".rel.plt"),
2352 flags | SEC_READONLY);
2354 || ! bfd_set_section_alignment (abfd, s, ptralign))
2357 if (! _bfd_cr16_elf_create_got_section (abfd, info))
2361 const char * secname;
2366 for (sec = abfd->sections; sec; sec = sec->next)
2368 secflags = bfd_get_section_flags (abfd, sec);
2369 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
2370 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
2373 secname = bfd_get_section_name (abfd, sec);
2374 relname = (char *) bfd_malloc (strlen (secname) + 6);
2375 strcpy (relname, ".rela");
2376 strcat (relname, secname);
2378 s = bfd_make_section_with_flags (abfd, relname,
2379 flags | SEC_READONLY);
2381 || ! bfd_set_section_alignment (abfd, s, ptralign))
2386 if (bed->want_dynbss)
2388 /* The .dynbss section is a place to put symbols which are defined
2389 by dynamic objects, are referenced by regular objects, and are
2390 not functions. We must allocate space for them in the process
2391 image and use a R_*_COPY reloc to tell the dynamic linker to
2392 initialize them at run time. The linker script puts the .dynbss
2393 section into the .bss section of the final image. */
2394 s = bfd_make_section_with_flags (abfd, ".dynbss",
2395 SEC_ALLOC | SEC_LINKER_CREATED);
2399 /* The .rel[a].bss section holds copy relocs. This section is not
2400 normally needed. We need to create it here, though, so that the
2401 linker will map it to an output section. We can't just create it
2402 only if we need it, because we will not know whether we need it
2403 until we have seen all the input files, and the first time the
2404 main linker code calls BFD after examining all the input files
2405 (size_dynamic_sections) the input sections have already been
2406 mapped to the output sections. If the section turns out not to
2407 be needed, we can discard it later. We will never need this
2408 section when generating a shared object, since they do not use
2410 if (! info->executable)
2412 s = bfd_make_section_with_flags (abfd,
2413 (bed->default_use_rela_p
2414 ? ".rela.bss" : ".rel.bss"),
2415 flags | SEC_READONLY);
2417 || ! bfd_set_section_alignment (abfd, s, ptralign))
2425 /* Adjust a symbol defined by a dynamic object and referenced by a
2426 regular object. The current definition is in some section of the
2427 dynamic object, but we're not including those sections. We have to
2428 change the definition to something the rest of the link can
2432 _bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
2433 struct elf_link_hash_entry * h)
2438 dynobj = elf_hash_table (info)->dynobj;
2440 /* Make sure we know what is going on here. */
2441 BFD_ASSERT (dynobj != NULL
2443 || h->u.weakdef != NULL
2446 && !h->def_regular)));
2448 /* If this is a function, put it in the procedure linkage table. We
2449 will fill in the contents of the procedure linkage table later,
2450 when we know the address of the .got section. */
2451 if (h->type == STT_FUNC
2454 if (! info->executable
2458 /* This case can occur if we saw a PLT reloc in an input
2459 file, but the symbol was never referred to by a dynamic
2460 object. In such a case, we don't actually need to build
2461 a procedure linkage table, and we can just do a REL32
2463 BFD_ASSERT (h->needs_plt);
2467 /* Make sure this symbol is output as a dynamic symbol. */
2468 if (h->dynindx == -1)
2470 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2474 /* We also need to make an entry in the .got.plt section, which
2475 will be placed in the .got section by the linker script. */
2477 s = bfd_get_section_by_name (dynobj, ".got.plt");
2478 BFD_ASSERT (s != NULL);
2481 /* We also need to make an entry in the .rela.plt section. */
2483 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2484 BFD_ASSERT (s != NULL);
2485 s->size += sizeof (Elf32_External_Rela);
2490 /* If this is a weak symbol, and there is a real definition, the
2491 processor independent code will have arranged for us to see the
2492 real definition first, and we can just use the same value. */
2493 if (h->u.weakdef != NULL)
2495 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2496 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2497 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2498 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2502 /* This is a reference to a symbol defined by a dynamic object which
2503 is not a function. */
2505 /* If we are creating a shared library, we must presume that the
2506 only references to the symbol are via the global offset table.
2507 For such cases we need not do anything here; the relocations will
2508 be handled correctly by relocate_section. */
2509 if (info->executable)
2512 /* If there are no references to this symbol that do not use the
2513 GOT, we don't need to generate a copy reloc. */
2514 if (!h->non_got_ref)
2519 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2520 h->root.root.string);
2524 /* We must allocate the symbol in our .dynbss section, which will
2525 become part of the .bss section of the executable. There will be
2526 an entry for this symbol in the .dynsym section. The dynamic
2527 object will contain position independent code, so all references
2528 from the dynamic object to this symbol will go through the global
2529 offset table. The dynamic linker will use the .dynsym entry to
2530 determine the address it must put in the global offset table, so
2531 both the dynamic object and the regular object will refer to the
2532 same memory location for the variable. */
2534 s = bfd_get_section_by_name (dynobj, ".dynbss");
2535 BFD_ASSERT (s != NULL);
2537 /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to
2538 copy the initial value out of the dynamic object and into the
2539 runtime process image. We need to remember the offset into the
2540 .rela.bss section we are going to use. */
2541 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2545 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2546 BFD_ASSERT (srel != NULL);
2547 srel->size += sizeof (Elf32_External_Rela);
2551 return _bfd_elf_adjust_dynamic_copy (h, s);
2554 /* Set the sizes of the dynamic sections. */
2557 _bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd,
2558 struct bfd_link_info * info)
2564 bfd_boolean reltext;
2566 dynobj = elf_hash_table (info)->dynobj;
2567 BFD_ASSERT (dynobj != NULL);
2569 if (elf_hash_table (info)->dynamic_sections_created)
2571 /* Set the contents of the .interp section to the interpreter. */
2572 if (info->executable)
2575 s = bfd_get_section_by_name (dynobj, ".interp");
2576 BFD_ASSERT (s != NULL);
2577 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2578 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2584 /* We may have created entries in the .rela.got section.
2585 However, if we are not creating the dynamic sections, we will
2586 not actually use these entries. Reset the size of .rela.got,
2587 which will cause it to get stripped from the output file
2589 s = bfd_get_section_by_name (dynobj, ".rela.got");
2594 /* The check_relocs and adjust_dynamic_symbol entry points have
2595 determined the sizes of the various dynamic sections. Allocate
2600 for (s = dynobj->sections; s != NULL; s = s->next)
2604 if ((s->flags & SEC_LINKER_CREATED) == 0)
2607 /* It's OK to base decisions on the section name, because none
2608 of the dynobj section names depend upon the input files. */
2609 name = bfd_get_section_name (dynobj, s);
2611 if (strcmp (name, ".plt") == 0)
2613 /* Remember whether there is a PLT. */
2616 else if (CONST_STRNEQ (name, ".rela"))
2622 /* Remember whether there are any reloc sections other
2624 if (strcmp (name, ".rela.plt") != 0)
2626 const char * outname;
2630 /* If this relocation section applies to a read only
2631 section, then we probably need a DT_TEXTREL
2632 entry. The entries in the .rela.plt section
2633 really apply to the .got section, which we
2634 created ourselves and so know is not readonly. */
2635 outname = bfd_get_section_name (output_bfd,
2637 target = bfd_get_section_by_name (output_bfd, outname + 5);
2639 && (target->flags & SEC_READONLY) != 0
2640 && (target->flags & SEC_ALLOC) != 0)
2644 /* We use the reloc_count field as a counter if we need
2645 to copy relocs into the output file. */
2649 else if (! CONST_STRNEQ (name, ".got")
2650 && strcmp (name, ".dynbss") != 0)
2651 /* It's not one of our sections, so don't allocate space. */
2656 /* If we don't need this section, strip it from the
2657 output file. This is mostly to handle .rela.bss and
2658 .rela.plt. We must create both sections in
2659 create_dynamic_sections, because they must be created
2660 before the linker maps input sections to output
2661 sections. The linker does that before
2662 adjust_dynamic_symbol is called, and it is that
2663 function which decides whether anything needs to go
2664 into these sections. */
2665 s->flags |= SEC_EXCLUDE;
2669 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2672 /* Allocate memory for the section contents. We use bfd_zalloc
2673 here in case unused entries are not reclaimed before the
2674 section's contents are written out. This should not happen,
2675 but this way if it does, we get a R_CR16_NONE reloc
2676 instead of garbage. */
2677 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2678 if (s->contents == NULL)
2682 if (elf_hash_table (info)->dynamic_sections_created)
2684 /* Add some entries to the .dynamic section. We fill in the
2685 values later, in _bfd_cr16_elf_finish_dynamic_sections,
2686 but we must add the entries now so that we get the correct
2687 size for the .dynamic section. The DT_DEBUG entry is filled
2688 in by the dynamic linker and used by the debugger. */
2689 if (! info->executable)
2691 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
2697 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
2698 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
2699 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
2700 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
2706 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
2707 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
2708 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
2709 sizeof (Elf32_External_Rela)))
2715 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
2723 /* Finish up dynamic symbol handling. We set the contents of various
2724 dynamic sections here. */
2727 _bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd,
2728 struct bfd_link_info * info,
2729 struct elf_link_hash_entry * h,
2730 Elf_Internal_Sym * sym)
2734 dynobj = elf_hash_table (info)->dynobj;
2736 if (h->got.offset != (bfd_vma) -1)
2740 Elf_Internal_Rela rel;
2742 /* This symbol has an entry in the global offset table. Set it up. */
2744 sgot = bfd_get_section_by_name (dynobj, ".got");
2745 srel = bfd_get_section_by_name (dynobj, ".rela.got");
2746 BFD_ASSERT (sgot != NULL && srel != NULL);
2748 rel.r_offset = (sgot->output_section->vma
2749 + sgot->output_offset
2750 + (h->got.offset & ~1));
2752 /* If this is a -Bsymbolic link, and the symbol is defined
2753 locally, we just want to emit a RELATIVE reloc. Likewise if
2754 the symbol was forced to be local because of a version file.
2755 The entry in the global offset table will already have been
2756 initialized in the relocate_section function. */
2757 if (info->executable
2758 && (info->symbolic || h->dynindx == -1)
2761 rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20);
2762 rel.r_addend = (h->root.u.def.value
2763 + h->root.u.def.section->output_section->vma
2764 + h->root.u.def.section->output_offset);
2768 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2769 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2773 bfd_elf32_swap_reloca_out (output_bfd, &rel,
2774 (bfd_byte *) ((Elf32_External_Rela *) srel->contents
2775 + srel->reloc_count));
2776 ++ srel->reloc_count;
2782 Elf_Internal_Rela rel;
2784 /* This symbol needs a copy reloc. Set it up. */
2785 BFD_ASSERT (h->dynindx != -1
2786 && (h->root.type == bfd_link_hash_defined
2787 || h->root.type == bfd_link_hash_defweak));
2789 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2791 BFD_ASSERT (s != NULL);
2793 rel.r_offset = (h->root.u.def.value
2794 + h->root.u.def.section->output_section->vma
2795 + h->root.u.def.section->output_offset);
2796 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2798 bfd_elf32_swap_reloca_out (output_bfd, &rel,
2799 (bfd_byte *) ((Elf32_External_Rela *) s->contents
2804 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2805 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2806 || h == elf_hash_table (info)->hgot)
2807 sym->st_shndx = SHN_ABS;
2812 /* Finish up the dynamic sections. */
2815 _bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd,
2816 struct bfd_link_info * info)
2822 dynobj = elf_hash_table (info)->dynobj;
2824 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2825 BFD_ASSERT (sgot != NULL);
2826 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2828 if (elf_hash_table (info)->dynamic_sections_created)
2830 Elf32_External_Dyn * dyncon;
2831 Elf32_External_Dyn * dynconend;
2833 BFD_ASSERT (sdyn != NULL);
2835 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2836 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2838 for (; dyncon < dynconend; dyncon++)
2840 Elf_Internal_Dyn dyn;
2844 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2858 s = bfd_get_section_by_name (output_bfd, name);
2859 BFD_ASSERT (s != NULL);
2860 dyn.d_un.d_ptr = s->vma;
2861 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2865 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2866 BFD_ASSERT (s != NULL);
2867 dyn.d_un.d_val = s->size;
2868 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2872 /* My reading of the SVR4 ABI indicates that the
2873 procedure linkage table relocs (DT_JMPREL) should be
2874 included in the overall relocs (DT_RELA). This is
2875 what Solaris does. However, UnixWare can not handle
2876 that case. Therefore, we override the DT_RELASZ entry
2877 here to make it not include the JMPREL relocs. Since
2878 the linker script arranges for .rela.plt to follow all
2879 other relocation sections, we don't have to worry
2880 about changing the DT_RELA entry. */
2881 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2883 dyn.d_un.d_val -= s->size;
2884 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2891 /* Fill in the first three entries in the global offset table. */
2895 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2897 bfd_put_32 (output_bfd,
2898 sdyn->output_section->vma + sdyn->output_offset,
2902 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2907 /* Given a .data.rel section and a .emreloc in-memory section, store
2908 relocation information into the .emreloc section which can be
2909 used at runtime to relocate the section. This is called by the
2910 linker when the --embedded-relocs switch is used. This is called
2911 after the add_symbols entry point has been called for all the
2912 objects, and before the final_link entry point is called. */
2915 bfd_cr16_elf32_create_embedded_relocs (bfd *abfd,
2916 struct bfd_link_info *info,
2921 Elf_Internal_Shdr *symtab_hdr;
2922 Elf_Internal_Sym *isymbuf = NULL;
2923 Elf_Internal_Rela *internal_relocs = NULL;
2924 Elf_Internal_Rela *irel, *irelend;
2928 BFD_ASSERT (! info->relocatable);
2932 if (datasec->reloc_count == 0)
2935 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2937 /* Get a copy of the native relocations. */
2938 internal_relocs = (_bfd_elf_link_read_relocs
2939 (abfd, datasec, NULL, NULL, info->keep_memory));
2940 if (internal_relocs == NULL)
2943 amt = (bfd_size_type) datasec->reloc_count * 8;
2944 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
2945 if (relsec->contents == NULL)
2948 p = relsec->contents;
2950 irelend = internal_relocs + datasec->reloc_count;
2951 for (irel = internal_relocs; irel < irelend; irel++, p += 8)
2953 asection *targetsec;
2955 /* We are going to write a four byte longword into the runtime
2956 reloc section. The longword will be the address in the data
2957 section which must be relocated. It is followed by the name
2958 of the target section NUL-padded or truncated to 8
2961 /* We can only relocate absolute longword relocs at run time. */
2962 if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
2963 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32)))
2965 *errmsg = _("unsupported reloc type");
2966 bfd_set_error (bfd_error_bad_value);
2970 /* Get the target section referred to by the reloc. */
2971 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2973 /* A local symbol. */
2974 Elf_Internal_Sym *isym;
2976 /* Read this BFD's local symbols if we haven't done so already. */
2977 if (isymbuf == NULL)
2979 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2980 if (isymbuf == NULL)
2981 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2982 symtab_hdr->sh_info, 0,
2984 if (isymbuf == NULL)
2988 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2989 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
2994 struct elf_link_hash_entry *h;
2996 /* An external symbol. */
2997 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2998 h = elf_sym_hashes (abfd)[indx];
2999 BFD_ASSERT (h != NULL);
3000 if (h->root.type == bfd_link_hash_defined
3001 || h->root.type == bfd_link_hash_defweak)
3002 targetsec = h->root.u.def.section;
3007 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
3008 memset (p + 4, 0, 4);
3009 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
3010 && (targetsec != NULL) )
3011 strncpy ((char *) p + 4, targetsec->output_section->name, 4);
3014 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
3016 if (internal_relocs != NULL
3017 && elf_section_data (datasec)->relocs != internal_relocs)
3018 free (internal_relocs);
3022 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
3024 if (internal_relocs != NULL
3025 && elf_section_data (datasec)->relocs != internal_relocs)
3026 free (internal_relocs);
3031 /* Classify relocation types, such that combreloc can sort them
3034 static enum elf_reloc_type_class
3035 _bfd_cr16_elf_reloc_type_class (const Elf_Internal_Rela *rela)
3037 switch ((int) ELF32_R_TYPE (rela->r_info))
3039 case R_CR16_GOT_REGREL20:
3040 case R_CR16_GOTC_REGREL20:
3041 return reloc_class_relative;
3043 return reloc_class_normal;
3047 /* Definitions for setting CR16 target vector. */
3048 #define TARGET_LITTLE_SYM bfd_elf32_cr16_vec
3049 #define TARGET_LITTLE_NAME "elf32-cr16"
3050 #define ELF_ARCH bfd_arch_cr16
3051 #define ELF_MACHINE_CODE EM_CR16
3052 #define ELF_MACHINE_ALT1 EM_CR16_OLD
3053 #define ELF_MAXPAGESIZE 0x1
3054 #define elf_symbol_leading_char '_'
3056 #define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup
3057 #define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup
3058 #define elf_info_to_howto elf_cr16_info_to_howto
3059 #define elf_info_to_howto_rel 0
3060 #define elf_backend_relocate_section elf32_cr16_relocate_section
3061 #define bfd_elf32_bfd_relax_section elf32_cr16_relax_section
3062 #define bfd_elf32_bfd_get_relocated_section_contents \
3063 elf32_cr16_get_relocated_section_contents
3064 #define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook
3065 #define elf_backend_gc_sweep_hook elf32_cr16_gc_sweep_hook
3066 #define elf_backend_can_gc_sections 1
3067 #define elf_backend_rela_normal 1
3068 #define elf_backend_check_relocs cr16_elf_check_relocs
3069 /* So we can set bits in e_flags. */
3070 #define elf_backend_final_write_processing \
3071 _bfd_cr16_elf_final_write_processing
3072 #define elf_backend_object_p _bfd_cr16_elf_object_p
3074 #define bfd_elf32_bfd_merge_private_bfd_data \
3075 _bfd_cr16_elf_merge_private_bfd_data
3078 #define bfd_elf32_bfd_link_hash_table_create \
3079 elf32_cr16_link_hash_table_create
3080 #define bfd_elf32_bfd_link_hash_table_free \
3081 elf32_cr16_link_hash_table_free
3083 #define elf_backend_create_dynamic_sections \
3084 _bfd_cr16_elf_create_dynamic_sections
3085 #define elf_backend_adjust_dynamic_symbol \
3086 _bfd_cr16_elf_adjust_dynamic_symbol
3087 #define elf_backend_size_dynamic_sections \
3088 _bfd_cr16_elf_size_dynamic_sections
3089 #define elf_backend_omit_section_dynsym \
3090 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3091 #define elf_backend_finish_dynamic_symbol \
3092 _bfd_cr16_elf_finish_dynamic_symbol
3093 #define elf_backend_finish_dynamic_sections \
3094 _bfd_cr16_elf_finish_dynamic_sections
3096 #define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class
3099 #define elf_backend_want_got_plt 1
3100 #define elf_backend_plt_readonly 1
3101 #define elf_backend_want_plt_sym 0
3102 #define elf_backend_got_header_size 12
3104 #include "elf32-target.h"