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1/* Hitachi SH64-specific support for 32-bit ELF
2 Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20#define SH64_ELF
21
22#include "bfd.h"
23#include "sysdep.h"
24#include "elf-bfd.h"
25#include "../opcodes/sh64-opc.h"
26
27/* Add a suffix for datalabel indirection symbols. It must not match any
28 other symbols; user symbols with or without version or other
29 decoration. It must only be used internally and not emitted by any
30 means. */
31#define DATALABEL_SUFFIX " DL"
32
33/* Used to hold data for function called through bfd_map_over_sections. */
34struct sh64_find_section_vma_data
35 {
36 asection *section;
37 bfd_vma addr;
38 };
39
40static boolean sh64_elf_copy_private_data PARAMS ((bfd *, bfd *));
41static boolean sh64_elf_merge_private_data PARAMS ((bfd *, bfd *));
42static boolean sh64_elf_fake_sections PARAMS ((bfd *, Elf_Internal_Shdr *,
43 asection *));
44static boolean sh64_elf_set_private_flags PARAMS ((bfd *, flagword));
45static boolean sh64_elf_set_mach_from_flags PARAMS ((bfd *));
46static boolean shmedia_prepare_reloc
47 PARAMS ((struct bfd_link_info *, bfd *, asection *,
48 bfd_byte *, const Elf_Internal_Rela *, bfd_vma *));
49static int sh64_elf_get_symbol_type PARAMS ((Elf_Internal_Sym *, int));
50static boolean sh64_elf_add_symbol_hook
51 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
52 const char **, flagword *, asection **, bfd_vma *));
53static boolean sh64_elf_link_output_symbol_hook
54 PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
55 asection *));
56static boolean sh64_backend_section_from_shdr
90937f86 57 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
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58static void sh64_elf_final_write_processing PARAMS ((bfd *, boolean));
59static boolean sh64_bfd_elf_copy_private_section_data
60 PARAMS ((bfd *, asection *, bfd *, asection *));
518313c3 61static void sh64_find_section_for_address PARAMS ((bfd *, asection *, PTR));
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62
63/* Let elf32-sh.c handle the "bfd_" definitions, so we only have to
64 intrude with an #ifndef around the function definition. */
65#define sh_elf_copy_private_data sh64_elf_copy_private_data
66#define sh_elf_merge_private_data sh64_elf_merge_private_data
67#define sh_elf_set_private_flags sh64_elf_set_private_flags
68/* Typo in elf32-sh.c (and unlinear name). */
69#define bfd_elf32_bfd_set_private_flags sh64_elf_set_private_flags
70#define sh_elf_set_mach_from_flags sh64_elf_set_mach_from_flags
71
72#define elf_backend_sign_extend_vma 1
73#define elf_backend_fake_sections sh64_elf_fake_sections
74#define elf_backend_get_symbol_type sh64_elf_get_symbol_type
75#define elf_backend_add_symbol_hook sh64_elf_add_symbol_hook
76#define elf_backend_link_output_symbol_hook \
77 sh64_elf_link_output_symbol_hook
78#define elf_backend_final_write_processing sh64_elf_final_write_processing
79#define elf_backend_section_from_shdr sh64_backend_section_from_shdr
80
81/* For objcopy, we need to set up sh64_elf_section_data (asection *) from
82 incoming section flags. This is otherwise done in sh64elf.em when
83 linking or tc-sh64.c when assembling. */
84#define bfd_elf32_bfd_copy_private_section_data \
85 sh64_bfd_elf_copy_private_section_data
86
87/* This COFF-only function (only compiled with COFF support, making
88 ELF-only chains problematic) returns true early for SH4, so let's just
89 define it true here. */
90#define _bfd_sh_align_load_span(a,b,c,d,e,f,g,h,i,j) true
91
92#ifndef ELF_ARCH
93#define TARGET_BIG_SYM bfd_elf32_sh64_vec
94#define TARGET_BIG_NAME "elf32-sh64"
95#define TARGET_LITTLE_SYM bfd_elf32_sh64l_vec
96#define TARGET_LITTLE_NAME "elf32-sh64l"
97#define ELF_ARCH bfd_arch_sh
98#define ELF_MACHINE_CODE EM_SH
99#define ELF_MAXPAGESIZE 128
100
101#define elf_symbol_leading_char '_'
102#endif /* ELF_ARCH */
103
104#define GOT_BIAS (-((long)-32768))
105#define INCLUDE_SHMEDIA
106#include "elf32-sh.c"
107
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108/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections, and pass
109 through SHT_SH5_CR_SORTED on a sorted .cranges section. */
110
111boolean
112sh64_elf_fake_sections (output_bfd, elf_section_hdr, asect)
113 bfd *output_bfd ATTRIBUTE_UNUSED;
114 Elf_Internal_Shdr *elf_section_hdr;
115 asection *asect;
116{
117 if (sh64_elf_section_data (asect) != NULL)
118 elf_section_hdr->sh_flags
119 |= sh64_elf_section_data (asect)->contents_flags;
120
121 /* If this section has the SEC_SORT_ENTRIES flag set, it is a sorted
122 .cranges section passing through objcopy. */
123 if ((bfd_get_section_flags (output_bfd, asect) & SEC_SORT_ENTRIES) != 0
124 && strcmp (bfd_get_section_name (output_bfd, asect),
125 SH64_CRANGES_SECTION_NAME) == 0)
126 elf_section_hdr->sh_type = SHT_SH5_CR_SORTED;
127
128 return true;
129}
130
131static boolean
132sh64_elf_set_mach_from_flags (abfd)
133 bfd *abfd;
134{
135 flagword flags = elf_elfheader (abfd)->e_flags;
136 asection *cranges;
137
138 switch (flags & EF_SH_MACH_MASK)
139 {
140 case EF_SH5:
141 /* These are fit to execute on SH5. Just one but keep the switch
142 construct to make additions easy. */
143 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
144 break;
145
146 default:
147 bfd_set_error (bfd_error_wrong_format);
148 return false;
149 }
150
151 /* We also need to set SEC_DEBUGGING on an incoming .cranges section.
152 We could have used elf_backend_section_flags if it had given us the
153 section name; the bfd_section member in the header argument is not
154 set at the point of the call. FIXME: Find out whether that is by
155 undocumented design or a bug. */
156 cranges = bfd_get_section_by_name (abfd, SH64_CRANGES_SECTION_NAME);
157 if (cranges != NULL
158 && ! bfd_set_section_flags (abfd, cranges,
159 bfd_get_section_flags (abfd, cranges)
160 | SEC_DEBUGGING))
161 return false;
162
163 return true;
164}
165
166static boolean
167sh64_elf_copy_private_data (ibfd, obfd)
168 bfd * ibfd;
169 bfd * obfd;
170{
171 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
172 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
173 return true;
174
175 BFD_ASSERT (!elf_flags_init (obfd)
176 || (elf_elfheader (obfd)->e_flags
177 == elf_elfheader (ibfd)->e_flags));
178
179 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
180 return true;
181}
182
183static boolean
184sh64_elf_merge_private_data (ibfd, obfd)
185 bfd *ibfd;
186 bfd *obfd;
187{
188 flagword old_flags, new_flags;
189
82e51918 190 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
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191 return false;
192
193 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
194 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
195 return true;
196
197 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
198 {
199 const char *msg;
200
201 if (bfd_get_arch_size (ibfd) == 32
202 && bfd_get_arch_size (obfd) == 64)
203 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
204 else if (bfd_get_arch_size (ibfd) == 64
205 && bfd_get_arch_size (obfd) == 32)
206 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
207 else
208 msg = _("%s: object size does not match that of target %s");
209
210 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
211 bfd_get_filename (obfd));
212 bfd_set_error (bfd_error_wrong_format);
213 return false;
214 }
215
216 old_flags = elf_elfheader (obfd)->e_flags;
217 new_flags = elf_elfheader (ibfd)->e_flags;
218 if (! elf_flags_init (obfd))
219 {
220 /* This happens when ld starts out with a 'blank' output file. */
221 elf_flags_init (obfd) = true;
222 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
223 }
224 /* We don't allow linking in non-SH64 code. */
225 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
226 {
227 (*_bfd_error_handler)
228 ("%s: uses non-SH64 instructions while previous modules use SH64 instructions",
229 bfd_get_filename (ibfd));
230 bfd_set_error (bfd_error_bad_value);
231 return false;
232 }
233
234 /* I can't think of anything sane other than old_flags being EF_SH5 and
235 that we need to preserve that. */
236 elf_elfheader (obfd)->e_flags = old_flags;
237 return sh64_elf_set_mach_from_flags (obfd);
238}
239
240/* Handle a SH64-specific section when reading an object file. This
241 is called when elfcode.h finds a section with an unknown type.
242
243 We only recognize SHT_SH5_CR_SORTED, on the .cranges section. */
244
245boolean
246sh64_backend_section_from_shdr (abfd, hdr, name)
247 bfd *abfd;
248 Elf_Internal_Shdr *hdr;
90937f86 249 const char *name;
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250{
251 flagword flags = 0;
252
253 /* We do like MIPS with a bit switch for recognized types, and returning
254 false for a recognized section type with an unexpected name. Right
255 now we only have one recognized type, but that might change. */
256 switch (hdr->sh_type)
257 {
258 case SHT_SH5_CR_SORTED:
259 if (strcmp (name, SH64_CRANGES_SECTION_NAME) != 0)
260 return false;
261
262 /* We set the SEC_SORT_ENTRIES flag so it can be passed on to
263 sh64_elf_fake_sections, keeping SHT_SH5_CR_SORTED if this object
264 passes through objcopy. Perhaps it is brittle; the flag can
265 suddenly be used by other BFD parts, but it seems not really used
266 anywhere at the moment. */
267 flags = SEC_DEBUGGING | SEC_SORT_ENTRIES;
268 break;
269
270 default:
271 return false;
272 }
273
274 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
275 return false;
276
277 if (flags
278 && ! bfd_set_section_flags (abfd, hdr->bfd_section,
279 bfd_get_section_flags (abfd,
280 hdr->bfd_section)
281 | flags))
282 return false;
283
284 return true;
285}
286
287/* In contrast to sh64_backend_section_from_shdr, this is called for all
288 sections, but only when copying sections, not when linking or
289 assembling. We need to set up the sh64_elf_section_data (asection *)
290 structure for the SH64 ELF section flags to be copied correctly. */
291
292boolean
293sh64_bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec)
294 bfd *ibfd;
295 asection *isec;
296 bfd *obfd;
297 asection *osec;
298{
299 struct sh64_section_data *sh64_sec_data;
300
301 if (ibfd->xvec->flavour != bfd_target_elf_flavour
302 || obfd->xvec->flavour != bfd_target_elf_flavour)
303 return true;
304
305 if (! _bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec))
306 return false;
307
308 sh64_sec_data = sh64_elf_section_data (isec);
309 if (sh64_sec_data == NULL)
310 {
311 sh64_sec_data = bfd_zmalloc (sizeof (struct sh64_section_data));
312
313 if (sh64_sec_data == NULL)
314 return false;
315
316 sh64_sec_data->contents_flags
317 = (elf_section_data (isec)->this_hdr.sh_flags
318 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED));
319
320 sh64_elf_section_data (osec) = sh64_sec_data;
321 }
322
323 return true;
324}
325
326/* Function to keep SH64 specific file flags. */
327
328static boolean
329sh64_elf_set_private_flags (abfd, flags)
330 bfd * abfd;
331 flagword flags;
332{
333 BFD_ASSERT (! elf_flags_init (abfd)
334 || elf_elfheader (abfd)->e_flags == flags);
335
336 elf_elfheader (abfd)->e_flags = flags;
337 elf_flags_init (abfd) = true;
338 return sh64_elf_set_mach_from_flags (abfd);
339}
340
341/* Called when writing out an object file to decide the type of a symbol. */
342
343static int
344sh64_elf_get_symbol_type (elf_sym, type)
345 Elf_Internal_Sym * elf_sym;
346 int type;
347{
348 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
349 return STT_DATALABEL;
350
351 return type;
352}
353
354/* Hook called by the linker routine which adds symbols from an object
355 file. We must make indirect symbols for undefined symbols marked with
356 STT_DATALABEL, so relocations passing them will pick up that attribute
357 and neutralize STO_SH5_ISA32 found on the symbol definition.
358
359 There is a problem, though: We want to fill in the hash-table entry for
360 this symbol and signal to the caller that no further processing is
361 needed. But we don't have the index for this hash-table entry. We
362 rely here on that the current entry is the first hash-entry with NULL,
363 which seems brittle. Also, iterating over the hash-table to find that
364 entry is a linear operation on the number of symbols in this input
365 file, and this function should take constant time, so that's not good
366 too. Only comfort is that DataLabel references should only be found in
367 hand-written assembly code and thus be rare. FIXME: Talk maintainers
368 into adding an option to elf_add_symbol_hook (preferably) for the index
369 or the hash entry, alternatively adding the index to Elf_Internal_Sym
370 (not so good). */
371
372static boolean
373sh64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
374 bfd *abfd;
375 struct bfd_link_info *info;
376 const Elf_Internal_Sym *sym;
377 const char **namep;
378 flagword *flagsp ATTRIBUTE_UNUSED;
379 asection **secp;
380 bfd_vma *valp;
381{
382 /* We want to do this for relocatable as well as final linking. */
4ab82700
AM
383 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
384 && info->hash->creator->flavour == bfd_target_elf_flavour)
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385 {
386 struct elf_link_hash_entry *h;
387
388 /* For relocateable links, we register the DataLabel sym in its own
389 right, and tweak the name when it's output. Otherwise, we make
390 an indirect symbol of it. */
391 flagword flags
392 = info->relocateable || info->emitrelocations
393 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
394
395 char *dl_name
396 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
397 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
398
399 BFD_ASSERT (sym_hash != NULL);
400
401 /* Allocation may fail. */
402 if (dl_name == NULL)
403 return false;
404
405 strcpy (dl_name, *namep);
406 strcat (dl_name, DATALABEL_SUFFIX);
407
408 h = (struct elf_link_hash_entry *)
409 bfd_link_hash_lookup (info->hash, dl_name, false, false, false);
410
411 if (h == NULL)
412 {
413 /* No previous datalabel symbol. Make one. */
414 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
415 flags, *secp, *valp,
416 *namep, false,
417 get_elf_backend_data (abfd)->collect,
418 (struct bfd_link_hash_entry **) &h))
419 {
420 free (dl_name);
421 return false;
422 }
423
424 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
425 h->type = STT_DATALABEL;
426 }
427 else
428 /* If a new symbol was created, it holds the allocated name.
429 Otherwise, we don't need it anymore and should deallocate it. */
430 free (dl_name);
431
432 if (h->type != STT_DATALABEL
433 || ((info->relocateable || info->emitrelocations)
434 && h->root.type != bfd_link_hash_undefined)
435 || (! info->relocateable && !info->emitrelocations
436 && h->root.type != bfd_link_hash_indirect))
437 {
438 /* Make sure we don't get confused on invalid input. */
439 (*_bfd_error_handler)
440 (_("%s: encountered datalabel symbol in input"),
441 bfd_get_filename (abfd));
442 bfd_set_error (bfd_error_bad_value);
443 return false;
444 }
445
446 /* Now find the hash-table slot for this entry and fill it in. */
447 while (*sym_hash != NULL)
448 sym_hash++;
449 *sym_hash = h;
450
451 /* Signal to caller to skip this symbol - we've handled it. */
452 *namep = NULL;
453 }
454
455 return true;
456}
457
458/* This hook function is called before the linker writes out a global
459 symbol. For relocatable links, DataLabel symbols will be present in
460 linker output. We cut off the special suffix on those symbols, so the
461 right name appears in the output.
462
463 When linking and emitting relocations, there can appear global symbols
464 that are not referenced by relocs, but rather only implicitly through
465 DataLabel references, a relation that is not visible to the linker.
466 Since no stripping of global symbols in done when doing such linking,
467 we don't need to look up and make sure to emit the main symbol for each
468 DataLabel symbol. */
469
470boolean
471sh64_elf_link_output_symbol_hook (abfd, info, cname, sym, input_sec)
472 bfd *abfd ATTRIBUTE_UNUSED;
473 struct bfd_link_info *info;
474 const char *cname;
475 Elf_Internal_Sym *sym;
476 asection *input_sec ATTRIBUTE_UNUSED;
477{
478 char *name = (char *) cname;
479
480 if (info->relocateable || info->emitrelocations)
481 {
482 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
483 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
484 }
485
486 return true;
487}
488
489/* Check a SH64-specific reloc and put the value to relocate to into
490 RELOCATION, ready to pass to _bfd_final_link_relocate. Return FALSE if
491 bad value, TRUE if ok. */
492
493static boolean
494shmedia_prepare_reloc (info, abfd, input_section,
495 contents, rel, relocation)
496 struct bfd_link_info *info;
497 bfd *abfd;
498 asection *input_section;
499 bfd_byte *contents;
500 const Elf_Internal_Rela *rel;
501 bfd_vma *relocation;
502{
503 bfd_vma disp, dropped;
504
505 switch (ELF32_R_TYPE (rel->r_info))
506 {
507 case R_SH_PT_16:
508 /* Check the lowest bit of the destination field. If it is 1, we
509 check the ISA type of the destination (i.e. the low bit of the
510 "relocation" value, and emit an error if the instruction does not
511 match). If it is 0, we change a PTA to PTB. There should never
512 be a PTB that should change to a PTA; that indicates a toolchain
513 error; a mismatch with GAS. */
514 {
515 char *msg = NULL;
516 bfd_vma insn = bfd_get_32 (abfd, contents + rel->r_offset);
517
518 if (insn & (1 << 10))
519 {
520 /* Check matching insn and ISA (address of target). */
521 if ((insn & SHMEDIA_PTB_BIT) != 0
522 && ((*relocation + rel->r_addend) & 1) != 0)
523 msg = _("PTB mismatch: a SHmedia address (bit 0 == 1)");
524 else if ((insn & SHMEDIA_PTB_BIT) == 0
525 && ((*relocation + rel->r_addend) & 1) == 0)
526 msg = _("PTA mismatch: a SHcompact address (bit 0 == 0)");
527
528 if (msg != NULL
529 && ! ((*info->callbacks->reloc_dangerous)
530 (info, msg, abfd, input_section,
531 rel->r_offset)))
532 return false;
533 }
534 else
535 {
536 /* We shouldn't get here with a PTB insn and a R_SH_PT_16. It
537 means GAS output does not match expectations; a PTA or PTB
538 expressed as such (or a PT found at assembly to be PTB)
539 would match the test above, and PT expansion with an
540 unknown destination (or when relaxing) will get us here. */
541 if ((insn & SHMEDIA_PTB_BIT) != 0)
542 {
543 (*_bfd_error_handler)
544 (_("%s: GAS error: unexpected PTB insn with R_SH_PT_16"),
545 bfd_get_filename (input_section->owner));
546 return false;
547 }
548
549 /* Change the PTA to a PTB, if destination indicates so. */
550 if (((*relocation + rel->r_addend) & 1) == 0)
551 bfd_put_32 (abfd, insn | SHMEDIA_PTB_BIT,
552 contents + rel->r_offset);
553 }
554 }
555
556 case R_SH_SHMEDIA_CODE:
557 case R_SH_DIR5U:
558 case R_SH_DIR6S:
559 case R_SH_DIR6U:
560 case R_SH_DIR10S:
561 case R_SH_DIR10SW:
562 case R_SH_DIR10SL:
563 case R_SH_DIR10SQ:
564 case R_SH_IMMS16:
565 case R_SH_IMMU16:
566 case R_SH_IMM_LOW16:
567 case R_SH_IMM_LOW16_PCREL:
568 case R_SH_IMM_MEDLOW16:
569 case R_SH_IMM_MEDLOW16_PCREL:
570 case R_SH_IMM_MEDHI16:
571 case R_SH_IMM_MEDHI16_PCREL:
572 case R_SH_IMM_HI16:
573 case R_SH_IMM_HI16_PCREL:
574 case R_SH_64:
575 case R_SH_64_PCREL:
576 break;
577
578 default:
579 return false;
580 }
581
582 disp = (*relocation & 0xf);
583 dropped = 0;
584 switch (ELF32_R_TYPE (rel->r_info))
585 {
586 case R_SH_DIR10SW: dropped = disp & 1; break;
587 case R_SH_DIR10SL: dropped = disp & 3; break;
588 case R_SH_DIR10SQ: dropped = disp & 7; break;
589 }
590 if (dropped != 0)
591 {
592 (*_bfd_error_handler)
593 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
594 bfd_get_filename (input_section->owner), ELF32_R_TYPE (rel->r_info),
595 (unsigned)rel->r_offset, (unsigned)relocation);
596 return false;
597 }
598
599 return true;
600}
601
602/* Helper function to locate the section holding a certain address. This
603 is called via bfd_map_over_sections. */
604
605static void
606sh64_find_section_for_address (abfd, section, data)
607 bfd *abfd ATTRIBUTE_UNUSED;
608 asection *section;
609 PTR data;
610{
611 bfd_vma vma;
612 bfd_size_type size;
613 struct sh64_find_section_vma_data *fsec_datap
614 = (struct sh64_find_section_vma_data *) data;
615
616 /* Return if already found. */
617 if (fsec_datap->section)
618 return;
619
620 /* If this section isn't part of the addressable contents, skip it. */
621 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
622 return;
623
624 vma = bfd_get_section_vma (abfd, section);
625 if (fsec_datap->addr < vma)
626 return;
627
628 /* FIXME: section->reloc_done isn't set properly; a generic buglet
629 preventing us from using bfd_get_section_size_after_reloc. */
630 size
631 = section->_cooked_size ? section->_cooked_size : section->_raw_size;
632
633 if (fsec_datap->addr >= vma + size)
634 return;
635
636 fsec_datap->section = section;
637}
638
639/* Make sure to write out the generated entries in the .cranges section
640 when doing partial linking, and set bit 0 on the entry address if it
641 points to SHmedia code and write sorted .cranges entries when writing
642 executables (final linking and objcopy). */
643
644static void
645sh64_elf_final_write_processing (abfd, linker)
646 bfd * abfd;
647 boolean linker ATTRIBUTE_UNUSED;
648{
649 bfd_vma ld_generated_cranges_size;
650 asection *cranges
651 = bfd_get_section_by_name (abfd, SH64_CRANGES_SECTION_NAME);
652
653 /* If no new .cranges were added, the generic ELF linker parts will
654 write it all out. If not, we need to write them out when doing
655 partial linking. For a final link, we will sort them and write them
656 all out further below. */
657 if (linker
658 && cranges != NULL
659 && elf_elfheader (abfd)->e_type != ET_EXEC
660 && (ld_generated_cranges_size
661 = sh64_elf_section_data (cranges)->cranges_growth) != 0)
662 {
663 bfd_vma incoming_cranges_size
664 = ((cranges->_cooked_size != 0
665 ? cranges->_cooked_size : cranges->_raw_size)
666 - ld_generated_cranges_size);
667
668 if (! bfd_set_section_contents (abfd, cranges,
669 cranges->contents
670 + incoming_cranges_size,
671 cranges->output_offset
672 + incoming_cranges_size,
673 ld_generated_cranges_size))
674 {
675 bfd_set_error (bfd_error_file_truncated);
676 (*_bfd_error_handler)
677 (_("%s: could not write out added .cranges entries"),
678 bfd_get_filename (abfd));
679 }
680 }
681
682 /* Only set entry address bit 0 and sort .cranges when linking to an
683 executable; never with objcopy or strip. */
684 if (linker && elf_elfheader (abfd)->e_type == ET_EXEC)
685 {
686 struct sh64_find_section_vma_data fsec_data;
687 sh64_elf_crange dummy;
688
689 /* For a final link, set the low bit of the entry address to
690 reflect whether or not it is a SHmedia address.
691 FIXME: Perhaps we shouldn't do this if the entry address was
692 supplied numerically, but we currently lack the infrastructure to
693 recognize that: The entry symbol, and info whether it is numeric
694 or a symbol name is kept private in the linker. */
695 fsec_data.addr = elf_elfheader (abfd)->e_entry;
696 fsec_data.section = NULL;
697
698 bfd_map_over_sections (abfd, sh64_find_section_for_address,
699 (PTR) &fsec_data);
700 if (fsec_data.section
701 && (sh64_get_contents_type (fsec_data.section,
702 elf_elfheader (abfd)->e_entry,
703 &dummy) == CRT_SH5_ISA32))
704 elf_elfheader (abfd)->e_entry |= 1;
705
706 /* If we have a .cranges section, sort the entries. */
707 if (cranges != NULL)
708 {
709 bfd_size_type cranges_size
710 = (cranges->_cooked_size != 0
711 ? cranges->_cooked_size : cranges->_raw_size);
712
713 /* We know we always have these in memory at this time. */
714 BFD_ASSERT (cranges->contents != NULL);
715
716 /* The .cranges may already have been sorted in the process of
717 finding out the ISA-type of the entry address. If not, we do
718 it here. */
719 if (elf_section_data (cranges)->this_hdr.sh_type
720 != SHT_SH5_CR_SORTED)
721 {
722 qsort (cranges->contents, cranges_size / SH64_CRANGE_SIZE,
723 SH64_CRANGE_SIZE,
724 bfd_big_endian (cranges->owner)
9cba27b2
JT
725 ? _bfd_sh64_crange_qsort_cmpb
726 : _bfd_sh64_crange_qsort_cmpl);
fbca6ad9
AO
727 elf_section_data (cranges)->this_hdr.sh_type
728 = SHT_SH5_CR_SORTED;
729 }
730
731 /* We need to write it out in whole as sorted. */
732 if (! bfd_set_section_contents (abfd, cranges,
733 cranges->contents,
734 cranges->output_offset,
735 cranges_size))
736 {
737 bfd_set_error (bfd_error_file_truncated);
738 (*_bfd_error_handler)
739 (_("%s: could not write out sorted .cranges entries"),
740 bfd_get_filename (abfd));
741 }
742 }
743 }
744}