* acinclude.m4 (AM_INSTALL_LIBBFD): Do not rely on "test -o".
[deliverable/binutils-gdb.git] / bfd / elf32-sh64.c
CommitLineData
fbca6ad9 1/* Hitachi SH64-specific support for 32-bit ELF
b34976b6 2 Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
fbca6ad9
AO
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
b34976b6
AM
40static bfd_boolean sh64_elf_copy_private_data
41 PARAMS ((bfd *, bfd *));
42static bfd_boolean sh64_elf_merge_private_data
43 PARAMS ((bfd *, bfd *));
44static bfd_boolean sh64_elf_fake_sections
45 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
46static bfd_boolean sh64_elf_set_private_flags
47 PARAMS ((bfd *, flagword));
48static bfd_boolean sh64_elf_set_mach_from_flags
49 PARAMS ((bfd *));
50static bfd_boolean shmedia_prepare_reloc
fbca6ad9
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51 PARAMS ((struct bfd_link_info *, bfd *, asection *,
52 bfd_byte *, const Elf_Internal_Rela *, bfd_vma *));
b34976b6
AM
53static int sh64_elf_get_symbol_type
54 PARAMS ((Elf_Internal_Sym *, int));
55static bfd_boolean sh64_elf_add_symbol_hook
fbca6ad9
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56 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
57 const char **, flagword *, asection **, bfd_vma *));
b34976b6 58static bfd_boolean sh64_elf_link_output_symbol_hook
fbca6ad9
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59 PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
60 asection *));
b34976b6 61static bfd_boolean sh64_backend_section_from_shdr
90937f86 62 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
b34976b6
AM
63static void sh64_elf_final_write_processing
64 PARAMS ((bfd *, bfd_boolean));
65static bfd_boolean sh64_bfd_elf_copy_private_section_data
fbca6ad9 66 PARAMS ((bfd *, asection *, bfd *, asection *));
b34976b6
AM
67static void sh64_find_section_for_address
68 PARAMS ((bfd *, asection *, PTR));
fbca6ad9
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69
70/* Let elf32-sh.c handle the "bfd_" definitions, so we only have to
71 intrude with an #ifndef around the function definition. */
72#define sh_elf_copy_private_data sh64_elf_copy_private_data
73#define sh_elf_merge_private_data sh64_elf_merge_private_data
74#define sh_elf_set_private_flags sh64_elf_set_private_flags
75/* Typo in elf32-sh.c (and unlinear name). */
76#define bfd_elf32_bfd_set_private_flags sh64_elf_set_private_flags
77#define sh_elf_set_mach_from_flags sh64_elf_set_mach_from_flags
78
79#define elf_backend_sign_extend_vma 1
80#define elf_backend_fake_sections sh64_elf_fake_sections
81#define elf_backend_get_symbol_type sh64_elf_get_symbol_type
82#define elf_backend_add_symbol_hook sh64_elf_add_symbol_hook
83#define elf_backend_link_output_symbol_hook \
84 sh64_elf_link_output_symbol_hook
85#define elf_backend_final_write_processing sh64_elf_final_write_processing
86#define elf_backend_section_from_shdr sh64_backend_section_from_shdr
87
88/* For objcopy, we need to set up sh64_elf_section_data (asection *) from
89 incoming section flags. This is otherwise done in sh64elf.em when
90 linking or tc-sh64.c when assembling. */
91#define bfd_elf32_bfd_copy_private_section_data \
92 sh64_bfd_elf_copy_private_section_data
93
94/* This COFF-only function (only compiled with COFF support, making
b34976b6
AM
95 ELF-only chains problematic) returns TRUE early for SH4, so let's just
96 define it TRUE here. */
97#define _bfd_sh_align_load_span(a,b,c,d,e,f,g,h,i,j) TRUE
fbca6ad9 98
fbca6ad9
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99#define GOT_BIAS (-((long)-32768))
100#define INCLUDE_SHMEDIA
101#include "elf32-sh.c"
102
fbca6ad9
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103/* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections, and pass
104 through SHT_SH5_CR_SORTED on a sorted .cranges section. */
105
b34976b6 106bfd_boolean
fbca6ad9
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107sh64_elf_fake_sections (output_bfd, elf_section_hdr, asect)
108 bfd *output_bfd ATTRIBUTE_UNUSED;
109 Elf_Internal_Shdr *elf_section_hdr;
110 asection *asect;
111{
112 if (sh64_elf_section_data (asect) != NULL)
113 elf_section_hdr->sh_flags
114 |= sh64_elf_section_data (asect)->contents_flags;
115
116 /* If this section has the SEC_SORT_ENTRIES flag set, it is a sorted
117 .cranges section passing through objcopy. */
118 if ((bfd_get_section_flags (output_bfd, asect) & SEC_SORT_ENTRIES) != 0
119 && strcmp (bfd_get_section_name (output_bfd, asect),
120 SH64_CRANGES_SECTION_NAME) == 0)
121 elf_section_hdr->sh_type = SHT_SH5_CR_SORTED;
122
b34976b6 123 return TRUE;
fbca6ad9
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124}
125
b34976b6 126static bfd_boolean
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127sh64_elf_set_mach_from_flags (abfd)
128 bfd *abfd;
129{
130 flagword flags = elf_elfheader (abfd)->e_flags;
131 asection *cranges;
132
133 switch (flags & EF_SH_MACH_MASK)
134 {
135 case EF_SH5:
136 /* These are fit to execute on SH5. Just one but keep the switch
137 construct to make additions easy. */
138 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
139 break;
140
141 default:
142 bfd_set_error (bfd_error_wrong_format);
b34976b6 143 return FALSE;
fbca6ad9
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144 }
145
146 /* We also need to set SEC_DEBUGGING on an incoming .cranges section.
147 We could have used elf_backend_section_flags if it had given us the
148 section name; the bfd_section member in the header argument is not
149 set at the point of the call. FIXME: Find out whether that is by
150 undocumented design or a bug. */
151 cranges = bfd_get_section_by_name (abfd, SH64_CRANGES_SECTION_NAME);
152 if (cranges != NULL
153 && ! bfd_set_section_flags (abfd, cranges,
154 bfd_get_section_flags (abfd, cranges)
155 | SEC_DEBUGGING))
b34976b6 156 return FALSE;
fbca6ad9 157
b34976b6 158 return TRUE;
fbca6ad9
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159}
160
b34976b6 161static bfd_boolean
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162sh64_elf_copy_private_data (ibfd, obfd)
163 bfd * ibfd;
164 bfd * obfd;
165{
166 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
167 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 168 return TRUE;
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169
170 BFD_ASSERT (!elf_flags_init (obfd)
171 || (elf_elfheader (obfd)->e_flags
172 == elf_elfheader (ibfd)->e_flags));
173
174 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
b34976b6 175 return TRUE;
fbca6ad9
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176}
177
b34976b6 178static bfd_boolean
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179sh64_elf_merge_private_data (ibfd, obfd)
180 bfd *ibfd;
181 bfd *obfd;
182{
183 flagword old_flags, new_flags;
184
82e51918 185 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
b34976b6 186 return FALSE;
fbca6ad9
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187
188 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
189 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 190 return TRUE;
fbca6ad9
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191
192 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
193 {
194 const char *msg;
195
196 if (bfd_get_arch_size (ibfd) == 32
197 && bfd_get_arch_size (obfd) == 64)
198 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
199 else if (bfd_get_arch_size (ibfd) == 64
200 && bfd_get_arch_size (obfd) == 32)
201 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
202 else
203 msg = _("%s: object size does not match that of target %s");
204
205 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
206 bfd_get_filename (obfd));
207 bfd_set_error (bfd_error_wrong_format);
b34976b6 208 return FALSE;
fbca6ad9
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209 }
210
211 old_flags = elf_elfheader (obfd)->e_flags;
212 new_flags = elf_elfheader (ibfd)->e_flags;
213 if (! elf_flags_init (obfd))
214 {
215 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 216 elf_flags_init (obfd) = TRUE;
fbca6ad9
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217 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
218 }
219 /* We don't allow linking in non-SH64 code. */
220 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
221 {
222 (*_bfd_error_handler)
223 ("%s: uses non-SH64 instructions while previous modules use SH64 instructions",
224 bfd_get_filename (ibfd));
225 bfd_set_error (bfd_error_bad_value);
b34976b6 226 return FALSE;
fbca6ad9
AO
227 }
228
229 /* I can't think of anything sane other than old_flags being EF_SH5 and
230 that we need to preserve that. */
231 elf_elfheader (obfd)->e_flags = old_flags;
232 return sh64_elf_set_mach_from_flags (obfd);
233}
234
235/* Handle a SH64-specific section when reading an object file. This
236 is called when elfcode.h finds a section with an unknown type.
237
238 We only recognize SHT_SH5_CR_SORTED, on the .cranges section. */
239
b34976b6 240bfd_boolean
fbca6ad9
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241sh64_backend_section_from_shdr (abfd, hdr, name)
242 bfd *abfd;
243 Elf_Internal_Shdr *hdr;
90937f86 244 const char *name;
fbca6ad9
AO
245{
246 flagword flags = 0;
247
248 /* We do like MIPS with a bit switch for recognized types, and returning
b34976b6 249 FALSE for a recognized section type with an unexpected name. Right
fbca6ad9
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250 now we only have one recognized type, but that might change. */
251 switch (hdr->sh_type)
252 {
253 case SHT_SH5_CR_SORTED:
254 if (strcmp (name, SH64_CRANGES_SECTION_NAME) != 0)
b34976b6 255 return FALSE;
fbca6ad9
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256
257 /* We set the SEC_SORT_ENTRIES flag so it can be passed on to
258 sh64_elf_fake_sections, keeping SHT_SH5_CR_SORTED if this object
259 passes through objcopy. Perhaps it is brittle; the flag can
260 suddenly be used by other BFD parts, but it seems not really used
261 anywhere at the moment. */
262 flags = SEC_DEBUGGING | SEC_SORT_ENTRIES;
263 break;
264
265 default:
b34976b6 266 return FALSE;
fbca6ad9
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267 }
268
269 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
b34976b6 270 return FALSE;
fbca6ad9
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271
272 if (flags
273 && ! bfd_set_section_flags (abfd, hdr->bfd_section,
274 bfd_get_section_flags (abfd,
275 hdr->bfd_section)
276 | flags))
b34976b6 277 return FALSE;
fbca6ad9 278
b34976b6 279 return TRUE;
fbca6ad9
AO
280}
281
282/* In contrast to sh64_backend_section_from_shdr, this is called for all
283 sections, but only when copying sections, not when linking or
284 assembling. We need to set up the sh64_elf_section_data (asection *)
285 structure for the SH64 ELF section flags to be copied correctly. */
286
b34976b6 287bfd_boolean
fbca6ad9
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288sh64_bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec)
289 bfd *ibfd;
290 asection *isec;
291 bfd *obfd;
292 asection *osec;
293{
294 struct sh64_section_data *sh64_sec_data;
295
296 if (ibfd->xvec->flavour != bfd_target_elf_flavour
297 || obfd->xvec->flavour != bfd_target_elf_flavour)
b34976b6 298 return TRUE;
fbca6ad9
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299
300 if (! _bfd_elf_copy_private_section_data (ibfd, isec, obfd, osec))
b34976b6 301 return FALSE;
fbca6ad9
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302
303 sh64_sec_data = sh64_elf_section_data (isec);
304 if (sh64_sec_data == NULL)
305 {
306 sh64_sec_data = bfd_zmalloc (sizeof (struct sh64_section_data));
307
308 if (sh64_sec_data == NULL)
b34976b6 309 return FALSE;
fbca6ad9
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310
311 sh64_sec_data->contents_flags
312 = (elf_section_data (isec)->this_hdr.sh_flags
313 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED));
314
315 sh64_elf_section_data (osec) = sh64_sec_data;
316 }
317
b34976b6 318 return TRUE;
fbca6ad9
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319}
320
321/* Function to keep SH64 specific file flags. */
322
b34976b6 323static bfd_boolean
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324sh64_elf_set_private_flags (abfd, flags)
325 bfd * abfd;
326 flagword flags;
327{
328 BFD_ASSERT (! elf_flags_init (abfd)
329 || elf_elfheader (abfd)->e_flags == flags);
330
331 elf_elfheader (abfd)->e_flags = flags;
b34976b6 332 elf_flags_init (abfd) = TRUE;
fbca6ad9
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333 return sh64_elf_set_mach_from_flags (abfd);
334}
335
336/* Called when writing out an object file to decide the type of a symbol. */
337
338static int
339sh64_elf_get_symbol_type (elf_sym, type)
340 Elf_Internal_Sym * elf_sym;
341 int type;
342{
343 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
344 return STT_DATALABEL;
345
346 return type;
347}
348
349/* Hook called by the linker routine which adds symbols from an object
350 file. We must make indirect symbols for undefined symbols marked with
351 STT_DATALABEL, so relocations passing them will pick up that attribute
352 and neutralize STO_SH5_ISA32 found on the symbol definition.
353
354 There is a problem, though: We want to fill in the hash-table entry for
355 this symbol and signal to the caller that no further processing is
356 needed. But we don't have the index for this hash-table entry. We
357 rely here on that the current entry is the first hash-entry with NULL,
358 which seems brittle. Also, iterating over the hash-table to find that
359 entry is a linear operation on the number of symbols in this input
360 file, and this function should take constant time, so that's not good
361 too. Only comfort is that DataLabel references should only be found in
362 hand-written assembly code and thus be rare. FIXME: Talk maintainers
363 into adding an option to elf_add_symbol_hook (preferably) for the index
364 or the hash entry, alternatively adding the index to Elf_Internal_Sym
365 (not so good). */
366
b34976b6 367static bfd_boolean
fbca6ad9
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368sh64_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
369 bfd *abfd;
370 struct bfd_link_info *info;
371 const Elf_Internal_Sym *sym;
372 const char **namep;
373 flagword *flagsp ATTRIBUTE_UNUSED;
374 asection **secp;
375 bfd_vma *valp;
376{
377 /* We want to do this for relocatable as well as final linking. */
4ab82700
AM
378 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
379 && info->hash->creator->flavour == bfd_target_elf_flavour)
fbca6ad9
AO
380 {
381 struct elf_link_hash_entry *h;
382
383 /* For relocateable links, we register the DataLabel sym in its own
384 right, and tweak the name when it's output. Otherwise, we make
385 an indirect symbol of it. */
386 flagword flags
387 = info->relocateable || info->emitrelocations
388 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
389
390 char *dl_name
391 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
392 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
393
394 BFD_ASSERT (sym_hash != NULL);
395
396 /* Allocation may fail. */
397 if (dl_name == NULL)
b34976b6 398 return FALSE;
fbca6ad9
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399
400 strcpy (dl_name, *namep);
401 strcat (dl_name, DATALABEL_SUFFIX);
402
403 h = (struct elf_link_hash_entry *)
b34976b6 404 bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
fbca6ad9
AO
405
406 if (h == NULL)
407 {
408 /* No previous datalabel symbol. Make one. */
14a793b2
AM
409 struct bfd_link_hash_entry *bh = NULL;
410 struct elf_backend_data *bed = get_elf_backend_data (abfd);
411
fbca6ad9
AO
412 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
413 flags, *secp, *valp,
b34976b6 414 *namep, FALSE,
14a793b2 415 bed->collect, &bh))
fbca6ad9
AO
416 {
417 free (dl_name);
b34976b6 418 return FALSE;
fbca6ad9
AO
419 }
420
14a793b2 421 h = (struct elf_link_hash_entry *) bh;
fbca6ad9
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422 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
423 h->type = STT_DATALABEL;
424 }
425 else
426 /* If a new symbol was created, it holds the allocated name.
427 Otherwise, we don't need it anymore and should deallocate it. */
428 free (dl_name);
429
430 if (h->type != STT_DATALABEL
431 || ((info->relocateable || info->emitrelocations)
432 && h->root.type != bfd_link_hash_undefined)
433 || (! info->relocateable && !info->emitrelocations
434 && h->root.type != bfd_link_hash_indirect))
435 {
436 /* Make sure we don't get confused on invalid input. */
437 (*_bfd_error_handler)
438 (_("%s: encountered datalabel symbol in input"),
439 bfd_get_filename (abfd));
440 bfd_set_error (bfd_error_bad_value);
b34976b6 441 return FALSE;
fbca6ad9
AO
442 }
443
444 /* Now find the hash-table slot for this entry and fill it in. */
445 while (*sym_hash != NULL)
446 sym_hash++;
447 *sym_hash = h;
448
449 /* Signal to caller to skip this symbol - we've handled it. */
450 *namep = NULL;
451 }
452
b34976b6 453 return TRUE;
fbca6ad9
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454}
455
456/* This hook function is called before the linker writes out a global
457 symbol. For relocatable links, DataLabel symbols will be present in
458 linker output. We cut off the special suffix on those symbols, so the
459 right name appears in the output.
460
461 When linking and emitting relocations, there can appear global symbols
462 that are not referenced by relocs, but rather only implicitly through
463 DataLabel references, a relation that is not visible to the linker.
464 Since no stripping of global symbols in done when doing such linking,
465 we don't need to look up and make sure to emit the main symbol for each
466 DataLabel symbol. */
467
b34976b6 468bfd_boolean
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469sh64_elf_link_output_symbol_hook (abfd, info, cname, sym, input_sec)
470 bfd *abfd ATTRIBUTE_UNUSED;
471 struct bfd_link_info *info;
472 const char *cname;
473 Elf_Internal_Sym *sym;
474 asection *input_sec ATTRIBUTE_UNUSED;
475{
476 char *name = (char *) cname;
477
478 if (info->relocateable || info->emitrelocations)
479 {
480 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
481 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
482 }
483
b34976b6 484 return TRUE;
fbca6ad9
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485}
486
487/* Check a SH64-specific reloc and put the value to relocate to into
488 RELOCATION, ready to pass to _bfd_final_link_relocate. Return FALSE if
489 bad value, TRUE if ok. */
490
b34976b6 491static bfd_boolean
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492shmedia_prepare_reloc (info, abfd, input_section,
493 contents, rel, relocation)
494 struct bfd_link_info *info;
495 bfd *abfd;
496 asection *input_section;
497 bfd_byte *contents;
498 const Elf_Internal_Rela *rel;
499 bfd_vma *relocation;
500{
501 bfd_vma disp, dropped;
502
503 switch (ELF32_R_TYPE (rel->r_info))
504 {
505 case R_SH_PT_16:
506 /* Check the lowest bit of the destination field. If it is 1, we
507 check the ISA type of the destination (i.e. the low bit of the
508 "relocation" value, and emit an error if the instruction does not
509 match). If it is 0, we change a PTA to PTB. There should never
510 be a PTB that should change to a PTA; that indicates a toolchain
511 error; a mismatch with GAS. */
512 {
513 char *msg = NULL;
514 bfd_vma insn = bfd_get_32 (abfd, contents + rel->r_offset);
515
516 if (insn & (1 << 10))
517 {
518 /* Check matching insn and ISA (address of target). */
519 if ((insn & SHMEDIA_PTB_BIT) != 0
520 && ((*relocation + rel->r_addend) & 1) != 0)
521 msg = _("PTB mismatch: a SHmedia address (bit 0 == 1)");
522 else if ((insn & SHMEDIA_PTB_BIT) == 0
523 && ((*relocation + rel->r_addend) & 1) == 0)
524 msg = _("PTA mismatch: a SHcompact address (bit 0 == 0)");
525
526 if (msg != NULL
527 && ! ((*info->callbacks->reloc_dangerous)
528 (info, msg, abfd, input_section,
529 rel->r_offset)))
b34976b6 530 return FALSE;
fbca6ad9
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531 }
532 else
533 {
534 /* We shouldn't get here with a PTB insn and a R_SH_PT_16. It
535 means GAS output does not match expectations; a PTA or PTB
536 expressed as such (or a PT found at assembly to be PTB)
537 would match the test above, and PT expansion with an
538 unknown destination (or when relaxing) will get us here. */
539 if ((insn & SHMEDIA_PTB_BIT) != 0)
540 {
541 (*_bfd_error_handler)
542 (_("%s: GAS error: unexpected PTB insn with R_SH_PT_16"),
543 bfd_get_filename (input_section->owner));
b34976b6 544 return FALSE;
fbca6ad9
AO
545 }
546
547 /* Change the PTA to a PTB, if destination indicates so. */
548 if (((*relocation + rel->r_addend) & 1) == 0)
549 bfd_put_32 (abfd, insn | SHMEDIA_PTB_BIT,
550 contents + rel->r_offset);
551 }
552 }
553
554 case R_SH_SHMEDIA_CODE:
555 case R_SH_DIR5U:
556 case R_SH_DIR6S:
557 case R_SH_DIR6U:
558 case R_SH_DIR10S:
559 case R_SH_DIR10SW:
560 case R_SH_DIR10SL:
561 case R_SH_DIR10SQ:
562 case R_SH_IMMS16:
563 case R_SH_IMMU16:
564 case R_SH_IMM_LOW16:
565 case R_SH_IMM_LOW16_PCREL:
566 case R_SH_IMM_MEDLOW16:
567 case R_SH_IMM_MEDLOW16_PCREL:
568 case R_SH_IMM_MEDHI16:
569 case R_SH_IMM_MEDHI16_PCREL:
570 case R_SH_IMM_HI16:
571 case R_SH_IMM_HI16_PCREL:
572 case R_SH_64:
573 case R_SH_64_PCREL:
574 break;
575
576 default:
b34976b6 577 return FALSE;
fbca6ad9
AO
578 }
579
580 disp = (*relocation & 0xf);
581 dropped = 0;
582 switch (ELF32_R_TYPE (rel->r_info))
583 {
584 case R_SH_DIR10SW: dropped = disp & 1; break;
585 case R_SH_DIR10SL: dropped = disp & 3; break;
586 case R_SH_DIR10SQ: dropped = disp & 7; break;
587 }
588 if (dropped != 0)
589 {
590 (*_bfd_error_handler)
591 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
592 bfd_get_filename (input_section->owner), ELF32_R_TYPE (rel->r_info),
593 (unsigned)rel->r_offset, (unsigned)relocation);
b34976b6 594 return FALSE;
fbca6ad9
AO
595 }
596
b34976b6 597 return TRUE;
fbca6ad9
AO
598}
599
600/* Helper function to locate the section holding a certain address. This
601 is called via bfd_map_over_sections. */
602
603static void
604sh64_find_section_for_address (abfd, section, data)
605 bfd *abfd ATTRIBUTE_UNUSED;
606 asection *section;
607 PTR data;
608{
609 bfd_vma vma;
610 bfd_size_type size;
611 struct sh64_find_section_vma_data *fsec_datap
612 = (struct sh64_find_section_vma_data *) data;
613
614 /* Return if already found. */
615 if (fsec_datap->section)
616 return;
617
618 /* If this section isn't part of the addressable contents, skip it. */
619 if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
620 return;
621
622 vma = bfd_get_section_vma (abfd, section);
623 if (fsec_datap->addr < vma)
624 return;
625
626 /* FIXME: section->reloc_done isn't set properly; a generic buglet
627 preventing us from using bfd_get_section_size_after_reloc. */
628 size
629 = section->_cooked_size ? section->_cooked_size : section->_raw_size;
630
631 if (fsec_datap->addr >= vma + size)
632 return;
633
634 fsec_datap->section = section;
635}
636
637/* Make sure to write out the generated entries in the .cranges section
638 when doing partial linking, and set bit 0 on the entry address if it
639 points to SHmedia code and write sorted .cranges entries when writing
640 executables (final linking and objcopy). */
641
642static void
643sh64_elf_final_write_processing (abfd, linker)
b34976b6
AM
644 bfd *abfd;
645 bfd_boolean linker ATTRIBUTE_UNUSED;
fbca6ad9
AO
646{
647 bfd_vma ld_generated_cranges_size;
648 asection *cranges
649 = bfd_get_section_by_name (abfd, SH64_CRANGES_SECTION_NAME);
650
651 /* If no new .cranges were added, the generic ELF linker parts will
652 write it all out. If not, we need to write them out when doing
653 partial linking. For a final link, we will sort them and write them
654 all out further below. */
655 if (linker
656 && cranges != NULL
657 && elf_elfheader (abfd)->e_type != ET_EXEC
658 && (ld_generated_cranges_size
659 = sh64_elf_section_data (cranges)->cranges_growth) != 0)
660 {
661 bfd_vma incoming_cranges_size
662 = ((cranges->_cooked_size != 0
663 ? cranges->_cooked_size : cranges->_raw_size)
664 - ld_generated_cranges_size);
665
666 if (! bfd_set_section_contents (abfd, cranges,
667 cranges->contents
668 + incoming_cranges_size,
669 cranges->output_offset
670 + incoming_cranges_size,
671 ld_generated_cranges_size))
672 {
673 bfd_set_error (bfd_error_file_truncated);
674 (*_bfd_error_handler)
675 (_("%s: could not write out added .cranges entries"),
676 bfd_get_filename (abfd));
677 }
678 }
679
680 /* Only set entry address bit 0 and sort .cranges when linking to an
681 executable; never with objcopy or strip. */
682 if (linker && elf_elfheader (abfd)->e_type == ET_EXEC)
683 {
684 struct sh64_find_section_vma_data fsec_data;
685 sh64_elf_crange dummy;
686
687 /* For a final link, set the low bit of the entry address to
688 reflect whether or not it is a SHmedia address.
689 FIXME: Perhaps we shouldn't do this if the entry address was
690 supplied numerically, but we currently lack the infrastructure to
691 recognize that: The entry symbol, and info whether it is numeric
692 or a symbol name is kept private in the linker. */
693 fsec_data.addr = elf_elfheader (abfd)->e_entry;
694 fsec_data.section = NULL;
695
696 bfd_map_over_sections (abfd, sh64_find_section_for_address,
697 (PTR) &fsec_data);
698 if (fsec_data.section
699 && (sh64_get_contents_type (fsec_data.section,
700 elf_elfheader (abfd)->e_entry,
701 &dummy) == CRT_SH5_ISA32))
702 elf_elfheader (abfd)->e_entry |= 1;
703
704 /* If we have a .cranges section, sort the entries. */
705 if (cranges != NULL)
706 {
707 bfd_size_type cranges_size
708 = (cranges->_cooked_size != 0
709 ? cranges->_cooked_size : cranges->_raw_size);
710
711 /* We know we always have these in memory at this time. */
712 BFD_ASSERT (cranges->contents != NULL);
713
714 /* The .cranges may already have been sorted in the process of
715 finding out the ISA-type of the entry address. If not, we do
716 it here. */
717 if (elf_section_data (cranges)->this_hdr.sh_type
718 != SHT_SH5_CR_SORTED)
719 {
720 qsort (cranges->contents, cranges_size / SH64_CRANGE_SIZE,
721 SH64_CRANGE_SIZE,
722 bfd_big_endian (cranges->owner)
9cba27b2
JT
723 ? _bfd_sh64_crange_qsort_cmpb
724 : _bfd_sh64_crange_qsort_cmpl);
fbca6ad9
AO
725 elf_section_data (cranges)->this_hdr.sh_type
726 = SHT_SH5_CR_SORTED;
727 }
728
729 /* We need to write it out in whole as sorted. */
730 if (! bfd_set_section_contents (abfd, cranges,
731 cranges->contents,
732 cranges->output_offset,
733 cranges_size))
734 {
735 bfd_set_error (bfd_error_file_truncated);
736 (*_bfd_error_handler)
737 (_("%s: could not write out sorted .cranges entries"),
738 bfd_get_filename (abfd));
739 }
740 }
741 }
742}
2bc3c89a
AM
743
744#undef TARGET_BIG_SYM
745#define TARGET_BIG_SYM bfd_elf32_sh64_vec
746#undef TARGET_BIG_NAME
747#define TARGET_BIG_NAME "elf32-sh64"
748#undef TARGET_LITTLE_SYM
749#define TARGET_LITTLE_SYM bfd_elf32_sh64l_vec
750#undef TARGET_LITTLE_NAME
751#define TARGET_LITTLE_NAME "elf32-sh64l"
752
753#include "elf32-target.h"
754
755/* NetBSD support. */
756#undef TARGET_BIG_SYM
757#define TARGET_BIG_SYM bfd_elf32_sh64nbsd_vec
758#undef TARGET_BIG_NAME
759#define TARGET_BIG_NAME "elf32-sh64-nbsd"
760#undef TARGET_LITTLE_SYM
761#define TARGET_LITTLE_SYM bfd_elf32_sh64lnbsd_vec
762#undef TARGET_LITTLE_NAME
763#define TARGET_LITTLE_NAME "elf32-sh64l-nbsd"
764#undef ELF_MAXPAGESIZE
765#define ELF_MAXPAGESIZE 0x10000
766#undef elf_symbol_leading_char
767#define elf_symbol_leading_char 0
768
769#define elf32_bed elf32_sh64_nbsd_bed
770
771#include "elf32-target.h"
772
773#undef elf32_bed
774
775/* Linux support. */
776#undef TARGET_BIG_SYM
777#define TARGET_BIG_SYM bfd_elf32_sh64blin_vec
778#undef TARGET_BIG_NAME
779#define TARGET_BIG_NAME "elf32-sh64big-linux"
780#undef TARGET_LITTLE_SYM
781#define TARGET_LITTLE_SYM bfd_elf32_sh64lin_vec
782#undef TARGET_LITTLE_NAME
783#define TARGET_LITTLE_NAME "elf32-sh64-linux"
784
785#define elf32_bed elf32_sh64_lin_bed
786
787#include "elf32-target.h"
788
789#undef elf32_bed
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