Commit | Line | Data |
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1c0d3aa6 | 1 | /* 32-bit ELF support for S+core. |
b90efa5b | 2 | Copyright (C) 2006-2015 Free Software Foundation, Inc. |
1c0d3aa6 | 3 | Contributed by |
c3b7224a | 4 | Brain.lin (brain.lin@sunplusct.com) |
1c0d3aa6 NC |
5 | Mei Ligang (ligang@sunnorth.com.cn) |
6 | Pei-Lin Tsai (pltsai@sunplus.com) | |
7 | ||
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 12 | the Free Software Foundation; either version 3 of the License, or |
1c0d3aa6 NC |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
22 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
23 | MA 02110-1301, USA. */ | |
1c0d3aa6 | 24 | |
1c0d3aa6 | 25 | #include "sysdep.h" |
3db64b00 | 26 | #include "bfd.h" |
1c0d3aa6 NC |
27 | #include "libbfd.h" |
28 | #include "libiberty.h" | |
29 | #include "elf-bfd.h" | |
30 | #include "elf/score.h" | |
31 | #include "elf/common.h" | |
32 | #include "elf/internal.h" | |
33 | #include "hashtab.h" | |
c3b7224a | 34 | #include "elf32-score.h" |
1c0d3aa6 NC |
35 | |
36 | ||
c3b7224a NC |
37 | int score3 = 0; |
38 | int score7 = 1; | |
1c0d3aa6 | 39 | |
1c0d3aa6 NC |
40 | /* The SCORE ELF linker needs additional information for each symbol in |
41 | the global hash table. */ | |
1c0d3aa6 NC |
42 | struct score_elf_link_hash_entry |
43 | { | |
44 | struct elf_link_hash_entry root; | |
45 | ||
46 | /* Number of R_SCORE_ABS32, R_SCORE_REL32 relocs against this symbol. */ | |
47 | unsigned int possibly_dynamic_relocs; | |
48 | ||
49 | /* If the R_SCORE_ABS32, R_SCORE_REL32 reloc is against a readonly section. */ | |
50 | bfd_boolean readonly_reloc; | |
51 | ||
52 | /* We must not create a stub for a symbol that has relocations related to | |
53 | taking the function's address, i.e. any but R_SCORE_CALL15 ones. */ | |
54 | bfd_boolean no_fn_stub; | |
55 | ||
56 | /* Are we forced local? This will only be set if we have converted | |
57 | the initial global GOT entry to a local GOT entry. */ | |
58 | bfd_boolean forced_local; | |
59 | }; | |
60 | ||
61 | /* Traverse a score ELF linker hash table. */ | |
62 | #define score_elf_link_hash_traverse(table, func, info) \ | |
63 | (elf_link_hash_traverse \ | |
4dfe6ac6 | 64 | ((table), \ |
1c0d3aa6 NC |
65 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
66 | (info))) | |
67 | ||
1c0d3aa6 NC |
68 | /* This structure is used to hold .got entries while estimating got sizes. */ |
69 | struct score_got_entry | |
70 | { | |
71 | /* The input bfd in which the symbol is defined. */ | |
72 | bfd *abfd; | |
73 | /* The index of the symbol, as stored in the relocation r_info, if | |
74 | we have a local symbol; -1 otherwise. */ | |
75 | long symndx; | |
76 | union | |
77 | { | |
78 | /* If abfd == NULL, an address that must be stored in the got. */ | |
79 | bfd_vma address; | |
80 | /* If abfd != NULL && symndx != -1, the addend of the relocation | |
81 | that should be added to the symbol value. */ | |
82 | bfd_vma addend; | |
83 | /* If abfd != NULL && symndx == -1, the hash table entry | |
84 | corresponding to a global symbol in the got (or, local, if | |
85 | h->forced_local). */ | |
86 | struct score_elf_link_hash_entry *h; | |
87 | } d; | |
88 | ||
89 | /* The offset from the beginning of the .got section to the entry | |
90 | corresponding to this symbol+addend. If it's a global symbol | |
91 | whose offset is yet to be decided, it's going to be -1. */ | |
92 | long gotidx; | |
93 | }; | |
94 | ||
95 | /* This structure is passed to score_elf_sort_hash_table_f when sorting | |
96 | the dynamic symbols. */ | |
97 | ||
98 | struct score_elf_hash_sort_data | |
99 | { | |
100 | /* The symbol in the global GOT with the lowest dynamic symbol table index. */ | |
101 | struct elf_link_hash_entry *low; | |
102 | /* The least dynamic symbol table index corresponding to a symbol with a GOT entry. */ | |
103 | long min_got_dynindx; | |
104 | /* The greatest dynamic symbol table index corresponding to a symbol | |
105 | with a GOT entry that is not referenced (e.g., a dynamic symbol | |
106 | with dynamic relocations pointing to it from non-primary GOTs). */ | |
107 | long max_unref_got_dynindx; | |
108 | /* The greatest dynamic symbol table index not corresponding to a | |
109 | symbol without a GOT entry. */ | |
110 | long max_non_got_dynindx; | |
111 | }; | |
112 | ||
113 | struct score_got_info | |
114 | { | |
115 | /* The global symbol in the GOT with the lowest index in the dynamic | |
116 | symbol table. */ | |
117 | struct elf_link_hash_entry *global_gotsym; | |
118 | /* The number of global .got entries. */ | |
119 | unsigned int global_gotno; | |
120 | /* The number of local .got entries. */ | |
121 | unsigned int local_gotno; | |
122 | /* The number of local .got entries we have used. */ | |
123 | unsigned int assigned_gotno; | |
124 | /* A hash table holding members of the got. */ | |
125 | struct htab *got_entries; | |
126 | /* In multi-got links, a pointer to the next got (err, rather, most | |
127 | of the time, it points to the previous got). */ | |
128 | struct score_got_info *next; | |
129 | }; | |
130 | ||
131 | /* A structure used to count GOT entries, for GOT entry or ELF symbol table traversal. */ | |
132 | struct _score_elf_section_data | |
133 | { | |
134 | struct bfd_elf_section_data elf; | |
135 | union | |
136 | { | |
137 | struct score_got_info *got_info; | |
138 | bfd_byte *tdata; | |
139 | } | |
140 | u; | |
141 | }; | |
142 | ||
143 | #define score_elf_section_data(sec) \ | |
144 | ((struct _score_elf_section_data *) elf_section_data (sec)) | |
145 | ||
146 | /* The size of a symbol-table entry. */ | |
147 | #define SCORE_ELF_SYM_SIZE(abfd) \ | |
148 | (get_elf_backend_data (abfd)->s->sizeof_sym) | |
149 | ||
150 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
151 | from smaller values. Start with zero, widen, *then* decrement. */ | |
152 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
153 | #define MINUS_TWO (((bfd_vma)0) - 2) | |
154 | ||
155 | #define PDR_SIZE 32 | |
156 | ||
157 | ||
158 | /* The number of local .got entries we reserve. */ | |
159 | #define SCORE_RESERVED_GOTNO (2) | |
160 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
161 | ||
162 | /* The offset of $gp from the beginning of the .got section. */ | |
163 | #define ELF_SCORE_GP_OFFSET(abfd) (0x3ff0) | |
164 | /* The maximum size of the GOT for it to be addressable using 15-bit offsets from $gp. */ | |
165 | #define SCORE_ELF_GOT_MAX_SIZE(abfd) (ELF_SCORE_GP_OFFSET(abfd) + 0x3fff) | |
166 | ||
167 | #define SCORE_ELF_STUB_SECTION_NAME (".SCORE.stub") | |
168 | #define SCORE_FUNCTION_STUB_SIZE (16) | |
169 | ||
c3b7224a | 170 | #define STUB_LW 0xc3bcc010 /* lw r29, [r28, -0x3ff0] */ |
1c0d3aa6 NC |
171 | #define STUB_MOVE 0x8363bc56 /* mv r27, r3 */ |
172 | #define STUB_LI16 0x87548000 /* ori r26, .dynsym_index */ | |
173 | #define STUB_BRL 0x801dbc09 /* brl r29 */ | |
174 | ||
175 | #define SCORE_ELF_GOT_SIZE(abfd) \ | |
176 | (get_elf_backend_data (abfd)->s->arch_size / 8) | |
177 | ||
178 | #define SCORE_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ | |
179 | (_bfd_elf_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val)) | |
180 | ||
181 | /* The size of an external dynamic table entry. */ | |
182 | #define SCORE_ELF_DYN_SIZE(abfd) \ | |
183 | (get_elf_backend_data (abfd)->s->sizeof_dyn) | |
184 | ||
185 | /* The size of an external REL relocation. */ | |
186 | #define SCORE_ELF_REL_SIZE(abfd) \ | |
187 | (get_elf_backend_data (abfd)->s->sizeof_rel) | |
188 | ||
189 | /* The default alignment for sections, as a power of two. */ | |
190 | #define SCORE_ELF_LOG_FILE_ALIGN(abfd)\ | |
191 | (get_elf_backend_data (abfd)->s->log_file_align) | |
192 | ||
1c0d3aa6 NC |
193 | static bfd_byte *hi16_rel_addr; |
194 | ||
195 | /* This will be used when we sort the dynamic relocation records. */ | |
196 | static bfd *reldyn_sorting_bfd; | |
197 | ||
198 | /* SCORE ELF uses two common sections. One is the usual one, and the | |
199 | other is for small objects. All the small objects are kept | |
200 | together, and then referenced via the gp pointer, which yields | |
201 | faster assembler code. This is what we use for the small common | |
202 | section. This approach is copied from ecoff.c. */ | |
203 | static asection score_elf_scom_section; | |
204 | static asymbol score_elf_scom_symbol; | |
205 | static asymbol *score_elf_scom_symbol_ptr; | |
206 | ||
c3b7224a NC |
207 | static bfd_vma |
208 | score_bfd_get_16 (bfd *abfd, const void *data) | |
209 | { | |
210 | return bfd_get_16 (abfd, data); | |
211 | } | |
212 | ||
213 | static bfd_vma | |
214 | score3_bfd_getl32 (const void *p) | |
215 | { | |
216 | const bfd_byte *addr = p; | |
217 | unsigned long v; | |
218 | ||
219 | v = (unsigned long) addr[2]; | |
220 | v |= (unsigned long) addr[3] << 8; | |
221 | v |= (unsigned long) addr[0] << 16; | |
222 | v |= (unsigned long) addr[1] << 24; | |
223 | return v; | |
224 | } | |
225 | ||
226 | static bfd_vma | |
227 | score3_bfd_getl48 (const void *p) | |
228 | { | |
229 | const bfd_byte *addr = p; | |
230 | unsigned long long v; | |
231 | ||
232 | v = (unsigned long long) addr[4]; | |
233 | v |= (unsigned long long) addr[5] << 8; | |
234 | v |= (unsigned long long) addr[2] << 16; | |
235 | v |= (unsigned long long) addr[3] << 24; | |
236 | v |= (unsigned long long) addr[0] << 32; | |
237 | v |= (unsigned long long) addr[1] << 40; | |
238 | return v; | |
239 | } | |
240 | ||
241 | static bfd_vma | |
242 | score_bfd_get_32 (bfd *abfd, const void *data) | |
243 | { | |
244 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
245 | return score3_bfd_getl32 (data); | |
246 | else | |
247 | return bfd_get_32 (abfd, data); | |
248 | } | |
249 | ||
250 | static bfd_vma | |
251 | score_bfd_get_48 (bfd *abfd, const void *p) | |
252 | { | |
253 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
254 | return score3_bfd_getl48 (p); | |
255 | else | |
256 | return bfd_get_bits (p, 48, 1); | |
257 | } | |
258 | ||
259 | static void | |
260 | score_bfd_put_16 (bfd *abfd, bfd_vma addr, void *data) | |
261 | { | |
262 | return bfd_put_16 (abfd, addr, data); | |
263 | } | |
264 | ||
265 | static void | |
266 | score3_bfd_putl32 (bfd_vma data, void *p) | |
267 | { | |
268 | bfd_byte *addr = p; | |
269 | addr[0] = (data >> 16) & 0xff; | |
270 | addr[1] = (data >> 24) & 0xff; | |
271 | addr[2] = data & 0xff; | |
272 | addr[3] = (data >> 8) & 0xff; | |
273 | } | |
274 | ||
275 | static void | |
276 | score3_bfd_putl48 (bfd_vma data, void *p) | |
277 | { | |
278 | bfd_byte *addr = p; | |
279 | addr[0] = (data >> 32) & 0xff; | |
280 | addr[1] = (data >> 40) & 0xff; | |
281 | addr[2] = (data >> 16) & 0xff; | |
282 | addr[3] = (data >> 24) & 0xff; | |
283 | addr[4] = data & 0xff; | |
284 | addr[5] = (data >> 8) & 0xff; | |
285 | } | |
286 | ||
287 | static void | |
288 | score_bfd_put_32 (bfd *abfd, bfd_vma addr, void *data) | |
289 | { | |
290 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
291 | return score3_bfd_putl32 (addr, data); | |
292 | else | |
293 | return bfd_put_32 (abfd, addr, data); | |
294 | } | |
295 | ||
296 | static void | |
297 | score_bfd_put_48 (bfd *abfd, bfd_vma val, void *p) | |
298 | { | |
299 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
300 | return score3_bfd_putl48 (val, p); | |
301 | else | |
302 | return bfd_put_bits (val, p, 48, 1); | |
303 | } | |
304 | ||
1c0d3aa6 NC |
305 | static bfd_reloc_status_type |
306 | score_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
c3b7224a NC |
307 | arelent *reloc_entry, |
308 | asymbol *symbol ATTRIBUTE_UNUSED, | |
309 | void * data, | |
310 | asection *input_section ATTRIBUTE_UNUSED, | |
311 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
312 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
313 | { |
314 | hi16_rel_addr = (bfd_byte *) data + reloc_entry->address; | |
315 | return bfd_reloc_ok; | |
316 | } | |
317 | ||
318 | static bfd_reloc_status_type | |
319 | score_elf_lo16_reloc (bfd *abfd, | |
c3b7224a NC |
320 | arelent *reloc_entry, |
321 | asymbol *symbol ATTRIBUTE_UNUSED, | |
322 | void * data, | |
323 | asection *input_section, | |
324 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
325 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
326 | { |
327 | bfd_vma addend = 0, offset = 0; | |
328 | unsigned long val; | |
329 | unsigned long hi16_offset, hi16_value, uvalue; | |
330 | ||
c3b7224a | 331 | hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr); |
1c0d3aa6 | 332 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; |
c3b7224a | 333 | addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
334 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
335 | val = reloc_entry->addend; | |
336 | if (reloc_entry->address > input_section->size) | |
337 | return bfd_reloc_outofrange; | |
338 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
339 | hi16_offset = (uvalue >> 16) << 1; | |
340 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 341 | score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr); |
1c0d3aa6 NC |
342 | offset = (uvalue & 0xffff) << 1; |
343 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 344 | score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
345 | return bfd_reloc_ok; |
346 | } | |
347 | ||
348 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a | |
349 | dangerous relocation. */ | |
350 | ||
351 | static bfd_boolean | |
352 | score_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) | |
353 | { | |
354 | unsigned int count; | |
355 | asymbol **sym; | |
356 | unsigned int i; | |
357 | ||
358 | /* If we've already figured out what GP will be, just return it. */ | |
359 | *pgp = _bfd_get_gp_value (output_bfd); | |
360 | if (*pgp) | |
361 | return TRUE; | |
362 | ||
363 | count = bfd_get_symcount (output_bfd); | |
364 | sym = bfd_get_outsymbols (output_bfd); | |
365 | ||
366 | /* The linker script will have created a symbol named `_gp' with the | |
367 | appropriate value. */ | |
368 | if (sym == NULL) | |
369 | i = count; | |
370 | else | |
371 | { | |
372 | for (i = 0; i < count; i++, sym++) | |
c3b7224a NC |
373 | { |
374 | const char *name; | |
1c0d3aa6 | 375 | |
c3b7224a NC |
376 | name = bfd_asymbol_name (*sym); |
377 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
378 | { | |
379 | *pgp = bfd_asymbol_value (*sym); | |
380 | _bfd_set_gp_value (output_bfd, *pgp); | |
381 | break; | |
382 | } | |
383 | } | |
1c0d3aa6 NC |
384 | } |
385 | ||
386 | if (i >= count) | |
387 | { | |
388 | /* Only get the error once. */ | |
389 | *pgp = 4; | |
390 | _bfd_set_gp_value (output_bfd, *pgp); | |
391 | return FALSE; | |
392 | } | |
393 | ||
394 | return TRUE; | |
395 | } | |
396 | ||
397 | /* We have to figure out the gp value, so that we can adjust the | |
398 | symbol value correctly. We look up the symbol _gp in the output | |
399 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
400 | target data. We don't need to adjust the symbol value for an | |
401 | external symbol if we are producing relocatable output. */ | |
1c0d3aa6 NC |
402 | static bfd_reloc_status_type |
403 | score_elf_final_gp (bfd *output_bfd, | |
c3b7224a NC |
404 | asymbol *symbol, |
405 | bfd_boolean relocatable, | |
406 | char **error_message, | |
407 | bfd_vma *pgp) | |
1c0d3aa6 NC |
408 | { |
409 | if (bfd_is_und_section (symbol->section) | |
410 | && ! relocatable) | |
411 | { | |
412 | *pgp = 0; | |
413 | return bfd_reloc_undefined; | |
414 | } | |
415 | ||
416 | *pgp = _bfd_get_gp_value (output_bfd); | |
417 | if (*pgp == 0 | |
418 | && (! relocatable | |
c3b7224a | 419 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
1c0d3aa6 NC |
420 | { |
421 | if (relocatable) | |
c3b7224a NC |
422 | { |
423 | /* Make up a value. */ | |
424 | *pgp = symbol->section->output_section->vma + 0x4000; | |
425 | _bfd_set_gp_value (output_bfd, *pgp); | |
426 | } | |
1c0d3aa6 | 427 | else if (!score_elf_assign_gp (output_bfd, pgp)) |
c3b7224a NC |
428 | { |
429 | *error_message = | |
430 | (char *) _("GP relative relocation when _gp not defined"); | |
431 | return bfd_reloc_dangerous; | |
432 | } | |
1c0d3aa6 NC |
433 | } |
434 | ||
435 | return bfd_reloc_ok; | |
436 | } | |
437 | ||
438 | static bfd_reloc_status_type | |
439 | score_elf_gprel15_with_gp (bfd *abfd, | |
c3b7224a NC |
440 | asymbol *symbol, |
441 | arelent *reloc_entry, | |
442 | asection *input_section, | |
443 | bfd_boolean relocateable, | |
444 | void * data, | |
445 | bfd_vma gp ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
446 | { |
447 | bfd_vma relocation; | |
448 | unsigned long insn; | |
449 | ||
450 | if (bfd_is_com_section (symbol->section)) | |
451 | relocation = 0; | |
452 | else | |
453 | relocation = symbol->value; | |
454 | ||
455 | relocation += symbol->section->output_section->vma; | |
456 | relocation += symbol->section->output_offset; | |
457 | if (reloc_entry->address > input_section->size) | |
458 | return bfd_reloc_outofrange; | |
459 | ||
c3b7224a | 460 | insn = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
461 | if (((reloc_entry->addend & 0xffffc000) != 0) |
462 | && ((reloc_entry->addend & 0xffffc000) != 0xffffc000)) | |
463 | return bfd_reloc_overflow; | |
464 | ||
465 | insn = (insn & ~0x7fff) | (reloc_entry->addend & 0x7fff); | |
c3b7224a | 466 | score_bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
467 | if (relocateable) |
468 | reloc_entry->address += input_section->output_offset; | |
469 | ||
470 | return bfd_reloc_ok; | |
471 | } | |
472 | ||
473 | static bfd_reloc_status_type | |
474 | gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry, | |
c3b7224a NC |
475 | asection *input_section, bfd_boolean relocatable, |
476 | void *data, bfd_vma gp) | |
1c0d3aa6 NC |
477 | { |
478 | bfd_vma relocation; | |
479 | bfd_vma val; | |
480 | ||
481 | if (bfd_is_com_section (symbol->section)) | |
482 | relocation = 0; | |
483 | else | |
484 | relocation = symbol->value; | |
485 | ||
486 | relocation += symbol->section->output_section->vma; | |
487 | relocation += symbol->section->output_offset; | |
488 | ||
489 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
490 | return bfd_reloc_outofrange; | |
491 | ||
492 | /* Set val to the offset into the section or symbol. */ | |
493 | val = reloc_entry->addend; | |
494 | ||
495 | if (reloc_entry->howto->partial_inplace) | |
c3b7224a | 496 | val += score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
497 | |
498 | /* Adjust val for the final section location and GP value. If we | |
499 | are producing relocatable output, we don't want to do this for | |
500 | an external symbol. */ | |
501 | if (! relocatable | |
502 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
503 | val += relocation - gp; | |
504 | ||
505 | if (reloc_entry->howto->partial_inplace) | |
c3b7224a | 506 | score_bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
507 | else |
508 | reloc_entry->addend = val; | |
509 | ||
510 | if (relocatable) | |
511 | reloc_entry->address += input_section->output_offset; | |
512 | ||
513 | return bfd_reloc_ok; | |
514 | } | |
515 | ||
516 | static bfd_reloc_status_type | |
517 | score_elf_gprel15_reloc (bfd *abfd, | |
c3b7224a NC |
518 | arelent *reloc_entry, |
519 | asymbol *symbol, | |
520 | void * data, | |
521 | asection *input_section, | |
522 | bfd *output_bfd, | |
523 | char **error_message) | |
1c0d3aa6 NC |
524 | { |
525 | bfd_boolean relocateable; | |
526 | bfd_reloc_status_type ret; | |
527 | bfd_vma gp; | |
528 | ||
c3b7224a | 529 | if (output_bfd != NULL |
1c0d3aa6 NC |
530 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) |
531 | { | |
532 | reloc_entry->address += input_section->output_offset; | |
533 | return bfd_reloc_ok; | |
534 | } | |
c3b7224a | 535 | if (output_bfd != NULL) |
1c0d3aa6 NC |
536 | relocateable = TRUE; |
537 | else | |
538 | { | |
539 | relocateable = FALSE; | |
540 | output_bfd = symbol->section->output_section->owner; | |
541 | } | |
542 | ||
543 | ret = score_elf_final_gp (output_bfd, symbol, relocateable, error_message, &gp); | |
544 | if (ret != bfd_reloc_ok) | |
545 | return ret; | |
546 | ||
547 | return score_elf_gprel15_with_gp (abfd, symbol, reloc_entry, | |
548 | input_section, relocateable, data, gp); | |
549 | } | |
550 | ||
551 | /* Do a R_SCORE_GPREL32 relocation. This is a 32 bit value which must | |
552 | become the offset from the gp register. */ | |
553 | ||
554 | static bfd_reloc_status_type | |
555 | score_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
c3b7224a NC |
556 | void *data, asection *input_section, bfd *output_bfd, |
557 | char **error_message) | |
1c0d3aa6 NC |
558 | { |
559 | bfd_boolean relocatable; | |
560 | bfd_reloc_status_type ret; | |
561 | bfd_vma gp; | |
562 | ||
563 | /* R_SCORE_GPREL32 relocations are defined for local symbols only. */ | |
564 | if (output_bfd != NULL | |
565 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
566 | && (symbol->flags & BSF_LOCAL) != 0) | |
567 | { | |
568 | *error_message = (char *) | |
c3b7224a | 569 | _("32bits gp relative relocation occurs for an external symbol"); |
1c0d3aa6 NC |
570 | return bfd_reloc_outofrange; |
571 | } | |
572 | ||
573 | if (output_bfd != NULL) | |
574 | relocatable = TRUE; | |
575 | else | |
576 | { | |
577 | relocatable = FALSE; | |
578 | output_bfd = symbol->section->output_section->owner; | |
579 | } | |
580 | ||
581 | ret = score_elf_final_gp (output_bfd, symbol, relocatable, error_message, &gp); | |
582 | if (ret != bfd_reloc_ok) | |
583 | return ret; | |
584 | ||
c3b7224a | 585 | gp = 0; |
1c0d3aa6 | 586 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, |
c3b7224a | 587 | relocatable, data, gp); |
1c0d3aa6 NC |
588 | } |
589 | ||
590 | /* A howto special_function for R_SCORE_GOT15 relocations. This is just | |
591 | like any other 16-bit relocation when applied to global symbols, but is | |
592 | treated in the same as R_SCORE_HI16 when applied to local symbols. */ | |
1c0d3aa6 NC |
593 | static bfd_reloc_status_type |
594 | score_elf_got15_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
c3b7224a NC |
595 | void *data, asection *input_section, |
596 | bfd *output_bfd, char **error_message) | |
1c0d3aa6 NC |
597 | { |
598 | if ((symbol->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
599 | || bfd_is_und_section (bfd_get_section (symbol)) | |
600 | || bfd_is_com_section (bfd_get_section (symbol))) | |
601 | /* The relocation is against a global symbol. */ | |
602 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
c3b7224a NC |
603 | input_section, output_bfd, |
604 | error_message); | |
1c0d3aa6 NC |
605 | |
606 | return score_elf_hi16_reloc (abfd, reloc_entry, symbol, data, | |
c3b7224a | 607 | input_section, output_bfd, error_message); |
1c0d3aa6 NC |
608 | } |
609 | ||
610 | static bfd_reloc_status_type | |
611 | score_elf_got_lo16_reloc (bfd *abfd, | |
c3b7224a NC |
612 | arelent *reloc_entry, |
613 | asymbol *symbol ATTRIBUTE_UNUSED, | |
614 | void * data, | |
615 | asection *input_section, | |
616 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
617 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
618 | { |
619 | bfd_vma addend = 0, offset = 0; | |
0150d082 ML |
620 | signed long val; |
621 | signed long hi16_offset, hi16_value, uvalue; | |
1c0d3aa6 | 622 | |
c3b7224a | 623 | hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr); |
1c0d3aa6 | 624 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; |
c3b7224a | 625 | addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
626 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
627 | val = reloc_entry->addend; | |
628 | if (reloc_entry->address > input_section->size) | |
629 | return bfd_reloc_outofrange; | |
630 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
0150d082 ML |
631 | if ((uvalue > -0x8000) && (uvalue < 0x7fff)) |
632 | hi16_offset = 0; | |
633 | else | |
634 | hi16_offset = (uvalue >> 16) & 0x7fff; | |
1c0d3aa6 | 635 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); |
c3b7224a | 636 | score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr); |
1c0d3aa6 NC |
637 | offset = (uvalue & 0xffff) << 1; |
638 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 639 | score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
640 | return bfd_reloc_ok; |
641 | } | |
642 | ||
643 | static reloc_howto_type elf32_score_howto_table[] = | |
644 | { | |
645 | /* No relocation. */ | |
646 | HOWTO (R_SCORE_NONE, /* type */ | |
647 | 0, /* rightshift */ | |
6346d5ca | 648 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
1c0d3aa6 NC |
649 | 0, /* bitsize */ |
650 | FALSE, /* pc_relative */ | |
651 | 0, /* bitpos */ | |
652 | complain_overflow_dont,/* complain_on_overflow */ | |
653 | bfd_elf_generic_reloc, /* special_function */ | |
654 | "R_SCORE_NONE", /* name */ | |
655 | FALSE, /* partial_inplace */ | |
656 | 0, /* src_mask */ | |
657 | 0, /* dst_mask */ | |
658 | FALSE), /* pcrel_offset */ | |
659 | ||
660 | /* R_SCORE_HI16 */ | |
661 | HOWTO (R_SCORE_HI16, /* type */ | |
662 | 0, /* rightshift */ | |
663 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
664 | 16, /* bitsize */ | |
665 | FALSE, /* pc_relative */ | |
666 | 1, /* bitpos */ | |
667 | complain_overflow_dont,/* complain_on_overflow */ | |
c3b7224a | 668 | score_elf_hi16_reloc, /* special_function */ |
1c0d3aa6 NC |
669 | "R_SCORE_HI16", /* name */ |
670 | TRUE, /* partial_inplace */ | |
671 | 0x37fff, /* src_mask */ | |
672 | 0x37fff, /* dst_mask */ | |
673 | FALSE), /* pcrel_offset */ | |
674 | ||
675 | /* R_SCORE_LO16 */ | |
676 | HOWTO (R_SCORE_LO16, /* type */ | |
677 | 0, /* rightshift */ | |
678 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
679 | 16, /* bitsize */ | |
680 | FALSE, /* pc_relative */ | |
681 | 1, /* bitpos */ | |
682 | complain_overflow_dont,/* complain_on_overflow */ | |
683 | score_elf_lo16_reloc, /* special_function */ | |
684 | "R_SCORE_LO16", /* name */ | |
685 | TRUE, /* partial_inplace */ | |
686 | 0x37fff, /* src_mask */ | |
687 | 0x37fff, /* dst_mask */ | |
688 | FALSE), /* pcrel_offset */ | |
689 | ||
c3b7224a NC |
690 | /* R_SCORE_BCMP */ |
691 | HOWTO (R_SCORE_BCMP, /* type */ | |
692 | 1, /* rightshift */ | |
1c0d3aa6 NC |
693 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
694 | 16, /* bitsize */ | |
c3b7224a | 695 | TRUE, /* pc_relative */ |
1c0d3aa6 NC |
696 | 1, /* bitpos */ |
697 | complain_overflow_dont,/* complain_on_overflow */ | |
698 | bfd_elf_generic_reloc, /* special_function */ | |
c3b7224a NC |
699 | "R_SCORE_BCMP", /* name */ |
700 | FALSE, /* partial_inplace */ | |
701 | 0x03e00381, /* src_mask */ | |
702 | 0x03e00381, /* dst_mask */ | |
1c0d3aa6 NC |
703 | FALSE), /* pcrel_offset */ |
704 | ||
705 | /*R_SCORE_24 */ | |
706 | HOWTO (R_SCORE_24, /* type */ | |
707 | 1, /* rightshift */ | |
708 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
709 | 24, /* bitsize */ | |
710 | FALSE, /* pc_relative */ | |
711 | 1, /* bitpos */ | |
712 | complain_overflow_dont,/* complain_on_overflow */ | |
713 | bfd_elf_generic_reloc, /* special_function */ | |
714 | "R_SCORE_24", /* name */ | |
715 | FALSE, /* partial_inplace */ | |
716 | 0x3ff7fff, /* src_mask */ | |
717 | 0x3ff7fff, /* dst_mask */ | |
718 | FALSE), /* pcrel_offset */ | |
719 | ||
720 | /*R_SCORE_PC19 */ | |
721 | HOWTO (R_SCORE_PC19, /* type */ | |
722 | 1, /* rightshift */ | |
723 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
724 | 19, /* bitsize */ | |
725 | TRUE, /* pc_relative */ | |
726 | 1, /* bitpos */ | |
727 | complain_overflow_dont,/* complain_on_overflow */ | |
728 | bfd_elf_generic_reloc, /* special_function */ | |
729 | "R_SCORE_PC19", /* name */ | |
730 | FALSE, /* partial_inplace */ | |
731 | 0x3ff03fe, /* src_mask */ | |
732 | 0x3ff03fe, /* dst_mask */ | |
733 | FALSE), /* pcrel_offset */ | |
734 | ||
735 | /*R_SCORE16_11 */ | |
736 | HOWTO (R_SCORE16_11, /* type */ | |
737 | 1, /* rightshift */ | |
738 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
739 | 11, /* bitsize */ | |
740 | FALSE, /* pc_relative */ | |
741 | 1, /* bitpos */ | |
742 | complain_overflow_dont,/* complain_on_overflow */ | |
743 | bfd_elf_generic_reloc, /* special_function */ | |
744 | "R_SCORE16_11", /* name */ | |
745 | FALSE, /* partial_inplace */ | |
746 | 0x000000ffe, /* src_mask */ | |
747 | 0x000000ffe, /* dst_mask */ | |
748 | FALSE), /* pcrel_offset */ | |
749 | ||
750 | /* R_SCORE16_PC8 */ | |
751 | HOWTO (R_SCORE16_PC8, /* type */ | |
752 | 1, /* rightshift */ | |
753 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
c3b7224a | 754 | 9, /* bitsize */ |
1c0d3aa6 NC |
755 | TRUE, /* pc_relative */ |
756 | 0, /* bitpos */ | |
757 | complain_overflow_dont,/* complain_on_overflow */ | |
758 | bfd_elf_generic_reloc, /* special_function */ | |
759 | "R_SCORE16_PC8", /* name */ | |
760 | FALSE, /* partial_inplace */ | |
c3b7224a NC |
761 | 0x000001ff, /* src_mask */ |
762 | 0x000001ff, /* dst_mask */ | |
1c0d3aa6 NC |
763 | FALSE), /* pcrel_offset */ |
764 | ||
765 | /* 32 bit absolute */ | |
766 | HOWTO (R_SCORE_ABS32, /* type 8 */ | |
767 | 0, /* rightshift */ | |
768 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
769 | 32, /* bitsize */ | |
770 | FALSE, /* pc_relative */ | |
771 | 0, /* bitpos */ | |
772 | complain_overflow_bitfield, /* complain_on_overflow */ | |
773 | bfd_elf_generic_reloc, /* special_function */ | |
774 | "R_SCORE_ABS32", /* name */ | |
775 | FALSE, /* partial_inplace */ | |
776 | 0xffffffff, /* src_mask */ | |
777 | 0xffffffff, /* dst_mask */ | |
778 | FALSE), /* pcrel_offset */ | |
779 | ||
780 | /* 16 bit absolute */ | |
781 | HOWTO (R_SCORE_ABS16, /* type 11 */ | |
782 | 0, /* rightshift */ | |
783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
784 | 16, /* bitsize */ | |
785 | FALSE, /* pc_relative */ | |
786 | 0, /* bitpos */ | |
787 | complain_overflow_bitfield, /* complain_on_overflow */ | |
788 | bfd_elf_generic_reloc, /* special_function */ | |
789 | "R_SCORE_ABS16", /* name */ | |
790 | FALSE, /* partial_inplace */ | |
791 | 0x0000ffff, /* src_mask */ | |
792 | 0x0000ffff, /* dst_mask */ | |
793 | FALSE), /* pcrel_offset */ | |
794 | ||
795 | /* R_SCORE_DUMMY2 */ | |
796 | HOWTO (R_SCORE_DUMMY2, /* type */ | |
797 | 0, /* rightshift */ | |
798 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
799 | 16, /* bitsize */ | |
800 | FALSE, /* pc_relative */ | |
801 | 0, /* bitpos */ | |
802 | complain_overflow_dont,/* complain_on_overflow */ | |
803 | bfd_elf_generic_reloc, /* special_function */ | |
804 | "R_SCORE_DUMMY2", /* name */ | |
805 | TRUE, /* partial_inplace */ | |
806 | 0x00007fff, /* src_mask */ | |
807 | 0x00007fff, /* dst_mask */ | |
808 | FALSE), /* pcrel_offset */ | |
809 | ||
810 | /* R_SCORE_GP15 */ | |
811 | HOWTO (R_SCORE_GP15, /* type */ | |
812 | 0, /* rightshift */ | |
813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
814 | 16, /* bitsize */ | |
815 | FALSE, /* pc_relative */ | |
816 | 0, /* bitpos */ | |
817 | complain_overflow_dont,/* complain_on_overflow */ | |
818 | score_elf_gprel15_reloc,/* special_function */ | |
819 | "R_SCORE_GP15", /* name */ | |
820 | TRUE, /* partial_inplace */ | |
821 | 0x00007fff, /* src_mask */ | |
822 | 0x00007fff, /* dst_mask */ | |
823 | FALSE), /* pcrel_offset */ | |
824 | ||
825 | /* GNU extension to record C++ vtable hierarchy. */ | |
826 | HOWTO (R_SCORE_GNU_VTINHERIT, /* type */ | |
827 | 0, /* rightshift */ | |
828 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
829 | 0, /* bitsize */ | |
830 | FALSE, /* pc_relative */ | |
831 | 0, /* bitpos */ | |
832 | complain_overflow_dont,/* complain_on_overflow */ | |
833 | NULL, /* special_function */ | |
834 | "R_SCORE_GNU_VTINHERIT", /* name */ | |
835 | FALSE, /* partial_inplace */ | |
836 | 0, /* src_mask */ | |
837 | 0, /* dst_mask */ | |
838 | FALSE), /* pcrel_offset */ | |
839 | ||
840 | /* GNU extension to record C++ vtable member usage */ | |
841 | HOWTO (R_SCORE_GNU_VTENTRY, /* type */ | |
842 | 0, /* rightshift */ | |
843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
844 | 0, /* bitsize */ | |
845 | FALSE, /* pc_relative */ | |
846 | 0, /* bitpos */ | |
847 | complain_overflow_dont,/* complain_on_overflow */ | |
848 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
849 | "R_SCORE_GNU_VTENTRY", /* name */ | |
850 | FALSE, /* partial_inplace */ | |
851 | 0, /* src_mask */ | |
852 | 0, /* dst_mask */ | |
853 | FALSE), /* pcrel_offset */ | |
854 | ||
855 | /* Reference to global offset table. */ | |
856 | HOWTO (R_SCORE_GOT15, /* type */ | |
857 | 0, /* rightshift */ | |
858 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
859 | 16, /* bitsize */ | |
860 | FALSE, /* pc_relative */ | |
861 | 0, /* bitpos */ | |
862 | complain_overflow_signed, /* complain_on_overflow */ | |
863 | score_elf_got15_reloc, /* special_function */ | |
864 | "R_SCORE_GOT15", /* name */ | |
865 | TRUE, /* partial_inplace */ | |
866 | 0x00007fff, /* src_mask */ | |
867 | 0x00007fff, /* dst_mask */ | |
868 | FALSE), /* pcrel_offset */ | |
869 | ||
870 | /* Low 16 bits of displacement in global offset table. */ | |
871 | HOWTO (R_SCORE_GOT_LO16, /* type */ | |
872 | 0, /* rightshift */ | |
873 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
874 | 16, /* bitsize */ | |
875 | FALSE, /* pc_relative */ | |
876 | 1, /* bitpos */ | |
877 | complain_overflow_dont,/* complain_on_overflow */ | |
878 | score_elf_got_lo16_reloc, /* special_function */ | |
879 | "R_SCORE_GOT_LO16", /* name */ | |
880 | TRUE, /* partial_inplace */ | |
881 | 0x37ffe, /* src_mask */ | |
882 | 0x37ffe, /* dst_mask */ | |
883 | FALSE), /* pcrel_offset */ | |
884 | ||
885 | /* 15 bit call through global offset table. */ | |
886 | HOWTO (R_SCORE_CALL15, /* type */ | |
887 | 0, /* rightshift */ | |
888 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
889 | 16, /* bitsize */ | |
890 | FALSE, /* pc_relative */ | |
891 | 0, /* bitpos */ | |
892 | complain_overflow_signed, /* complain_on_overflow */ | |
893 | bfd_elf_generic_reloc, /* special_function */ | |
894 | "R_SCORE_CALL15", /* name */ | |
895 | TRUE, /* partial_inplace */ | |
896 | 0x0000ffff, /* src_mask */ | |
897 | 0x0000ffff, /* dst_mask */ | |
898 | FALSE), /* pcrel_offset */ | |
899 | ||
900 | /* 32 bit GP relative reference. */ | |
901 | HOWTO (R_SCORE_GPREL32, /* type */ | |
902 | 0, /* rightshift */ | |
903 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
904 | 32, /* bitsize */ | |
905 | FALSE, /* pc_relative */ | |
906 | 0, /* bitpos */ | |
907 | complain_overflow_dont,/* complain_on_overflow */ | |
908 | score_elf_gprel32_reloc, /* special_function */ | |
909 | "R_SCORE_GPREL32", /* name */ | |
910 | TRUE, /* partial_inplace */ | |
911 | 0xffffffff, /* src_mask */ | |
912 | 0xffffffff, /* dst_mask */ | |
913 | FALSE), /* pcrel_offset */ | |
914 | ||
915 | /* 32 bit symbol relative relocation. */ | |
916 | HOWTO (R_SCORE_REL32, /* type */ | |
c3b7224a NC |
917 | 0, /* rightshift */ |
918 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
919 | 32, /* bitsize */ | |
920 | FALSE, /* pc_relative */ | |
921 | 0, /* bitpos */ | |
922 | complain_overflow_dont,/* complain_on_overflow */ | |
923 | bfd_elf_generic_reloc, /* special_function */ | |
924 | "R_SCORE_REL32", /* name */ | |
925 | TRUE, /* partial_inplace */ | |
926 | 0xffffffff, /* src_mask */ | |
927 | 0xffffffff, /* dst_mask */ | |
928 | FALSE), /* pcrel_offset */ | |
1c0d3aa6 NC |
929 | |
930 | /* R_SCORE_DUMMY_HI16 */ | |
931 | HOWTO (R_SCORE_DUMMY_HI16, /* type */ | |
932 | 0, /* rightshift */ | |
933 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
934 | 16, /* bitsize */ | |
935 | FALSE, /* pc_relative */ | |
936 | 1, /* bitpos */ | |
937 | complain_overflow_dont,/* complain_on_overflow */ | |
c3b7224a | 938 | score_elf_hi16_reloc, /* special_function */ |
1c0d3aa6 NC |
939 | "R_SCORE_DUMMY_HI16", /* name */ |
940 | TRUE, /* partial_inplace */ | |
941 | 0x37fff, /* src_mask */ | |
942 | 0x37fff, /* dst_mask */ | |
943 | FALSE), /* pcrel_offset */ | |
c3b7224a NC |
944 | |
945 | /* R_SCORE_IMM30 */ | |
946 | HOWTO (R_SCORE_IMM30, /* type */ | |
947 | 2, /* rightshift */ | |
948 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
949 | 30, /* bitsize */ | |
950 | FALSE, /* pc_relative */ | |
951 | 7, /* bitpos */ | |
952 | complain_overflow_dont,/* complain_on_overflow */ | |
953 | bfd_elf_generic_reloc, /* special_function */ | |
954 | "R_SCORE_IMM30", /* name */ | |
955 | FALSE, /* partial_inplace */ | |
956 | 0x7f7fff7f80LL, /* src_mask */ | |
957 | 0x7f7fff7f80LL, /* dst_mask */ | |
958 | FALSE), /* pcrel_offset */ | |
959 | ||
960 | /* R_SCORE_IMM32 */ | |
961 | HOWTO (R_SCORE_IMM32, /* type */ | |
962 | 0, /* rightshift */ | |
963 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
964 | 32, /* bitsize */ | |
965 | FALSE, /* pc_relative */ | |
966 | 5, /* bitpos */ | |
967 | complain_overflow_dont,/* complain_on_overflow */ | |
968 | bfd_elf_generic_reloc, /* special_function */ | |
969 | "R_SCORE_IMM32", /* name */ | |
970 | FALSE, /* partial_inplace */ | |
971 | 0x7f7fff7fe0LL, /* src_mask */ | |
972 | 0x7f7fff7fe0LL, /* dst_mask */ | |
973 | FALSE), /* pcrel_offset */ | |
1c0d3aa6 NC |
974 | }; |
975 | ||
976 | struct score_reloc_map | |
977 | { | |
978 | bfd_reloc_code_real_type bfd_reloc_val; | |
979 | unsigned char elf_reloc_val; | |
980 | }; | |
981 | ||
982 | static const struct score_reloc_map elf32_score_reloc_map[] = | |
983 | { | |
984 | {BFD_RELOC_NONE, R_SCORE_NONE}, | |
985 | {BFD_RELOC_HI16_S, R_SCORE_HI16}, | |
986 | {BFD_RELOC_LO16, R_SCORE_LO16}, | |
c3b7224a | 987 | {BFD_RELOC_SCORE_BCMP, R_SCORE_BCMP}, |
1c0d3aa6 NC |
988 | {BFD_RELOC_SCORE_JMP, R_SCORE_24}, |
989 | {BFD_RELOC_SCORE_BRANCH, R_SCORE_PC19}, | |
990 | {BFD_RELOC_SCORE16_JMP, R_SCORE16_11}, | |
991 | {BFD_RELOC_SCORE16_BRANCH, R_SCORE16_PC8}, | |
992 | {BFD_RELOC_32, R_SCORE_ABS32}, | |
993 | {BFD_RELOC_16, R_SCORE_ABS16}, | |
994 | {BFD_RELOC_SCORE_DUMMY2, R_SCORE_DUMMY2}, | |
995 | {BFD_RELOC_SCORE_GPREL15, R_SCORE_GP15}, | |
996 | {BFD_RELOC_VTABLE_INHERIT, R_SCORE_GNU_VTINHERIT}, | |
997 | {BFD_RELOC_VTABLE_ENTRY, R_SCORE_GNU_VTENTRY}, | |
998 | {BFD_RELOC_SCORE_GOT15, R_SCORE_GOT15}, | |
999 | {BFD_RELOC_SCORE_GOT_LO16, R_SCORE_GOT_LO16}, | |
1000 | {BFD_RELOC_SCORE_CALL15, R_SCORE_CALL15}, | |
1001 | {BFD_RELOC_GPREL32, R_SCORE_GPREL32}, | |
1002 | {BFD_RELOC_32_PCREL, R_SCORE_REL32}, | |
1003 | {BFD_RELOC_SCORE_DUMMY_HI16, R_SCORE_DUMMY_HI16}, | |
c3b7224a NC |
1004 | {BFD_RELOC_SCORE_IMM30, R_SCORE_IMM30}, |
1005 | {BFD_RELOC_SCORE_IMM32, R_SCORE_IMM32}, | |
1c0d3aa6 NC |
1006 | }; |
1007 | ||
1008 | /* got_entries only match if they're identical, except for gotidx, so | |
1009 | use all fields to compute the hash, and compare the appropriate | |
1010 | union members. */ | |
1c0d3aa6 NC |
1011 | static hashval_t |
1012 | score_elf_got_entry_hash (const void *entry_) | |
1013 | { | |
1014 | const struct score_got_entry *entry = (struct score_got_entry *)entry_; | |
1015 | ||
1016 | return entry->symndx | |
1017 | + (!entry->abfd ? entry->d.address : entry->abfd->id); | |
1018 | } | |
1019 | ||
1020 | static int | |
1021 | score_elf_got_entry_eq (const void *entry1, const void *entry2) | |
1022 | { | |
1023 | const struct score_got_entry *e1 = (struct score_got_entry *)entry1; | |
1024 | const struct score_got_entry *e2 = (struct score_got_entry *)entry2; | |
1025 | ||
1026 | return e1->abfd == e2->abfd && e1->symndx == e2->symndx | |
1027 | && (! e1->abfd ? e1->d.address == e2->d.address | |
c3b7224a NC |
1028 | : e1->symndx >= 0 ? e1->d.addend == e2->d.addend |
1029 | : e1->d.h == e2->d.h); | |
1c0d3aa6 NC |
1030 | } |
1031 | ||
1032 | /* If H needs a GOT entry, assign it the highest available dynamic | |
1033 | index. Otherwise, assign it the lowest available dynamic | |
1034 | index. */ | |
1c0d3aa6 NC |
1035 | static bfd_boolean |
1036 | score_elf_sort_hash_table_f (struct score_elf_link_hash_entry *h, void *data) | |
1037 | { | |
1038 | struct score_elf_hash_sort_data *hsd = data; | |
1039 | ||
1c0d3aa6 NC |
1040 | /* Symbols without dynamic symbol table entries aren't interesting at all. */ |
1041 | if (h->root.dynindx == -1) | |
1042 | return TRUE; | |
1043 | ||
1044 | /* Global symbols that need GOT entries that are not explicitly | |
1045 | referenced are marked with got offset 2. Those that are | |
1046 | referenced get a 1, and those that don't need GOT entries get | |
1047 | -1. */ | |
1048 | if (h->root.got.offset == 2) | |
1049 | { | |
1050 | if (hsd->max_unref_got_dynindx == hsd->min_got_dynindx) | |
c3b7224a | 1051 | hsd->low = (struct elf_link_hash_entry *) h; |
1c0d3aa6 NC |
1052 | h->root.dynindx = hsd->max_unref_got_dynindx++; |
1053 | } | |
1054 | else if (h->root.got.offset != 1) | |
1055 | h->root.dynindx = hsd->max_non_got_dynindx++; | |
1056 | else | |
1057 | { | |
1058 | h->root.dynindx = --hsd->min_got_dynindx; | |
1059 | hsd->low = (struct elf_link_hash_entry *) h; | |
1060 | } | |
1061 | ||
1062 | return TRUE; | |
1063 | } | |
1064 | ||
1065 | static asection * | |
1066 | score_elf_got_section (bfd *abfd, bfd_boolean maybe_excluded) | |
1067 | { | |
3d4d4302 | 1068 | asection *sgot = bfd_get_linker_section (abfd, ".got"); |
1c0d3aa6 NC |
1069 | |
1070 | if (sgot == NULL || (! maybe_excluded && (sgot->flags & SEC_EXCLUDE) != 0)) | |
1071 | return NULL; | |
1072 | return sgot; | |
1073 | } | |
1074 | ||
1075 | /* Returns the GOT information associated with the link indicated by | |
1076 | INFO. If SGOTP is non-NULL, it is filled in with the GOT section. */ | |
1c0d3aa6 NC |
1077 | static struct score_got_info * |
1078 | score_elf_got_info (bfd *abfd, asection **sgotp) | |
1079 | { | |
1080 | asection *sgot; | |
1081 | struct score_got_info *g; | |
1082 | ||
1083 | sgot = score_elf_got_section (abfd, TRUE); | |
1084 | BFD_ASSERT (sgot != NULL); | |
1085 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
1086 | g = score_elf_section_data (sgot)->u.got_info; | |
1087 | BFD_ASSERT (g != NULL); | |
1088 | ||
1089 | if (sgotp) | |
1090 | *sgotp = sgot; | |
1091 | return g; | |
1092 | } | |
1093 | ||
1094 | /* Sort the dynamic symbol table so that symbols that need GOT entries | |
1095 | appear towards the end. This reduces the amount of GOT space | |
1096 | required. MAX_LOCAL is used to set the number of local symbols | |
1097 | known to be in the dynamic symbol table. During | |
c3b7224a | 1098 | s3_bfd_score_elf_size_dynamic_sections, this value is 1. Afterward, the |
1c0d3aa6 | 1099 | section symbols are added and the count is higher. */ |
1c0d3aa6 NC |
1100 | static bfd_boolean |
1101 | score_elf_sort_hash_table (struct bfd_link_info *info, | |
c3b7224a | 1102 | unsigned long max_local) |
1c0d3aa6 NC |
1103 | { |
1104 | struct score_elf_hash_sort_data hsd; | |
1105 | struct score_got_info *g; | |
1106 | bfd *dynobj; | |
1107 | ||
1108 | dynobj = elf_hash_table (info)->dynobj; | |
1109 | ||
1110 | g = score_elf_got_info (dynobj, NULL); | |
1111 | ||
1112 | hsd.low = NULL; | |
1113 | hsd.max_unref_got_dynindx = | |
1114 | hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount | |
1115 | /* In the multi-got case, assigned_gotno of the master got_info | |
1116 | indicate the number of entries that aren't referenced in the | |
1117 | primary GOT, but that must have entries because there are | |
1118 | dynamic relocations that reference it. Since they aren't | |
1119 | referenced, we move them to the end of the GOT, so that they | |
1120 | don't prevent other entries that are referenced from getting | |
1121 | too large offsets. */ | |
1122 | - (g->next ? g->assigned_gotno : 0); | |
1123 | hsd.max_non_got_dynindx = max_local; | |
4dfe6ac6 NC |
1124 | score_elf_link_hash_traverse (elf_hash_table (info), |
1125 | score_elf_sort_hash_table_f, | |
1126 | &hsd); | |
1c0d3aa6 NC |
1127 | |
1128 | /* There should have been enough room in the symbol table to | |
1129 | accommodate both the GOT and non-GOT symbols. */ | |
1130 | BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx); | |
1131 | BFD_ASSERT ((unsigned long)hsd.max_unref_got_dynindx | |
c3b7224a | 1132 | <= elf_hash_table (info)->dynsymcount); |
1c0d3aa6 NC |
1133 | |
1134 | /* Now we know which dynamic symbol has the lowest dynamic symbol | |
1135 | table index in the GOT. */ | |
1136 | g->global_gotsym = hsd.low; | |
1137 | ||
1138 | return TRUE; | |
1139 | } | |
1140 | ||
1141 | /* Create an entry in an score ELF linker hash table. */ | |
4dfe6ac6 | 1142 | |
1c0d3aa6 NC |
1143 | static struct bfd_hash_entry * |
1144 | score_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
c3b7224a NC |
1145 | struct bfd_hash_table *table, |
1146 | const char *string) | |
1c0d3aa6 | 1147 | { |
4dfe6ac6 | 1148 | struct score_elf_link_hash_entry *ret = (struct score_elf_link_hash_entry *) entry; |
1c0d3aa6 NC |
1149 | |
1150 | /* Allocate the structure if it has not already been allocated by a subclass. */ | |
1151 | if (ret == NULL) | |
1152 | ret = bfd_hash_allocate (table, sizeof (struct score_elf_link_hash_entry)); | |
1153 | if (ret == NULL) | |
4dfe6ac6 | 1154 | return (struct bfd_hash_entry *) ret; |
1c0d3aa6 NC |
1155 | |
1156 | /* Call the allocation method of the superclass. */ | |
1157 | ret = ((struct score_elf_link_hash_entry *) | |
4dfe6ac6 | 1158 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); |
1c0d3aa6 NC |
1159 | |
1160 | if (ret != NULL) | |
1161 | { | |
1162 | ret->possibly_dynamic_relocs = 0; | |
1163 | ret->readonly_reloc = FALSE; | |
1164 | ret->no_fn_stub = FALSE; | |
1165 | ret->forced_local = FALSE; | |
1166 | } | |
1167 | ||
4dfe6ac6 | 1168 | return (struct bfd_hash_entry *) ret; |
1c0d3aa6 NC |
1169 | } |
1170 | ||
1171 | /* Returns the first relocation of type r_type found, beginning with | |
1172 | RELOCATION. RELEND is one-past-the-end of the relocation table. */ | |
1c0d3aa6 NC |
1173 | static const Elf_Internal_Rela * |
1174 | score_elf_next_relocation (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type, | |
c3b7224a NC |
1175 | const Elf_Internal_Rela *relocation, |
1176 | const Elf_Internal_Rela *relend) | |
1c0d3aa6 NC |
1177 | { |
1178 | while (relocation < relend) | |
1179 | { | |
1180 | if (ELF32_R_TYPE (relocation->r_info) == r_type) | |
c3b7224a | 1181 | return relocation; |
1c0d3aa6 NC |
1182 | |
1183 | ++relocation; | |
1184 | } | |
1185 | ||
1186 | /* We didn't find it. */ | |
1187 | bfd_set_error (bfd_error_bad_value); | |
1188 | return NULL; | |
1189 | } | |
1190 | ||
1191 | /* This function is called via qsort() to sort the dynamic relocation | |
1192 | entries by increasing r_symndx value. */ | |
1c0d3aa6 NC |
1193 | static int |
1194 | score_elf_sort_dynamic_relocs (const void *arg1, const void *arg2) | |
1195 | { | |
1196 | Elf_Internal_Rela int_reloc1; | |
1197 | Elf_Internal_Rela int_reloc2; | |
1198 | ||
1199 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg1, &int_reloc1); | |
1200 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg2, &int_reloc2); | |
1201 | ||
1202 | return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info)); | |
1203 | } | |
1204 | ||
1205 | /* Return whether a relocation is against a local symbol. */ | |
1c0d3aa6 NC |
1206 | static bfd_boolean |
1207 | score_elf_local_relocation_p (bfd *input_bfd, | |
c3b7224a NC |
1208 | const Elf_Internal_Rela *relocation, |
1209 | asection **local_sections, | |
1210 | bfd_boolean check_forced) | |
1c0d3aa6 NC |
1211 | { |
1212 | unsigned long r_symndx; | |
1213 | Elf_Internal_Shdr *symtab_hdr; | |
1214 | struct score_elf_link_hash_entry *h; | |
1215 | size_t extsymoff; | |
1216 | ||
1217 | r_symndx = ELF32_R_SYM (relocation->r_info); | |
1218 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
c3b7224a | 1219 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
1220 | |
1221 | if (r_symndx < extsymoff) | |
1222 | return TRUE; | |
c3b7224a NC |
1223 | if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL) |
1224 | return TRUE; | |
1c0d3aa6 NC |
1225 | |
1226 | if (check_forced) | |
1227 | { | |
1228 | /* Look up the hash table to check whether the symbol was forced local. */ | |
1229 | h = (struct score_elf_link_hash_entry *) | |
c3b7224a | 1230 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]; |
1c0d3aa6 NC |
1231 | /* Find the real hash-table entry for this symbol. */ |
1232 | while (h->root.root.type == bfd_link_hash_indirect | |
c3b7224a NC |
1233 | || h->root.root.type == bfd_link_hash_warning) |
1234 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
1c0d3aa6 | 1235 | if (h->root.forced_local) |
c3b7224a | 1236 | return TRUE; |
1c0d3aa6 NC |
1237 | } |
1238 | ||
1239 | return FALSE; | |
1240 | } | |
1241 | ||
1242 | /* Returns the dynamic relocation section for DYNOBJ. */ | |
1c0d3aa6 NC |
1243 | static asection * |
1244 | score_elf_rel_dyn_section (bfd *dynobj, bfd_boolean create_p) | |
1245 | { | |
1246 | static const char dname[] = ".rel.dyn"; | |
1247 | asection *sreloc; | |
1248 | ||
3d4d4302 | 1249 | sreloc = bfd_get_linker_section (dynobj, dname); |
1c0d3aa6 NC |
1250 | if (sreloc == NULL && create_p) |
1251 | { | |
3d4d4302 AM |
1252 | sreloc = bfd_make_section_anyway_with_flags (dynobj, dname, |
1253 | (SEC_ALLOC | |
1254 | | SEC_LOAD | |
1255 | | SEC_HAS_CONTENTS | |
1256 | | SEC_IN_MEMORY | |
1257 | | SEC_LINKER_CREATED | |
1258 | | SEC_READONLY)); | |
1c0d3aa6 | 1259 | if (sreloc == NULL |
c3b7224a NC |
1260 | || ! bfd_set_section_alignment (dynobj, sreloc, |
1261 | SCORE_ELF_LOG_FILE_ALIGN (dynobj))) | |
1262 | return NULL; | |
1c0d3aa6 | 1263 | } |
c3b7224a | 1264 | return sreloc; |
1c0d3aa6 NC |
1265 | } |
1266 | ||
1267 | static void | |
1268 | score_elf_allocate_dynamic_relocations (bfd *abfd, unsigned int n) | |
1269 | { | |
1270 | asection *s; | |
1271 | ||
1272 | s = score_elf_rel_dyn_section (abfd, FALSE); | |
1273 | BFD_ASSERT (s != NULL); | |
1274 | ||
1275 | if (s->size == 0) | |
1276 | { | |
1277 | /* Make room for a null element. */ | |
1278 | s->size += SCORE_ELF_REL_SIZE (abfd); | |
1279 | ++s->reloc_count; | |
1280 | } | |
1281 | s->size += n * SCORE_ELF_REL_SIZE (abfd); | |
1282 | } | |
1283 | ||
1284 | /* Create a rel.dyn relocation for the dynamic linker to resolve. REL | |
1285 | is the original relocation, which is now being transformed into a | |
1286 | dynamic relocation. The ADDENDP is adjusted if necessary; the | |
1287 | caller should store the result in place of the original addend. */ | |
1c0d3aa6 NC |
1288 | static bfd_boolean |
1289 | score_elf_create_dynamic_relocation (bfd *output_bfd, | |
c3b7224a NC |
1290 | struct bfd_link_info *info, |
1291 | const Elf_Internal_Rela *rel, | |
1292 | struct score_elf_link_hash_entry *h, | |
1293 | bfd_vma symbol, | |
1294 | bfd_vma *addendp, asection *input_section) | |
1c0d3aa6 NC |
1295 | { |
1296 | Elf_Internal_Rela outrel[3]; | |
1297 | asection *sreloc; | |
1298 | bfd *dynobj; | |
1299 | int r_type; | |
1300 | long indx; | |
1301 | bfd_boolean defined_p; | |
1302 | ||
1303 | r_type = ELF32_R_TYPE (rel->r_info); | |
1304 | dynobj = elf_hash_table (info)->dynobj; | |
1305 | sreloc = score_elf_rel_dyn_section (dynobj, FALSE); | |
1306 | BFD_ASSERT (sreloc != NULL); | |
1307 | BFD_ASSERT (sreloc->contents != NULL); | |
1308 | BFD_ASSERT (sreloc->reloc_count * SCORE_ELF_REL_SIZE (output_bfd) < sreloc->size); | |
1309 | ||
1310 | outrel[0].r_offset = | |
1311 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[0].r_offset); | |
1312 | outrel[1].r_offset = | |
1313 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[1].r_offset); | |
1314 | outrel[2].r_offset = | |
1315 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[2].r_offset); | |
1316 | ||
1317 | if (outrel[0].r_offset == MINUS_ONE) | |
1318 | /* The relocation field has been deleted. */ | |
1319 | return TRUE; | |
1320 | ||
1321 | if (outrel[0].r_offset == MINUS_TWO) | |
1322 | { | |
1323 | /* The relocation field has been converted into a relative value of | |
c3b7224a NC |
1324 | some sort. Functions like _bfd_elf_write_section_eh_frame expect |
1325 | the field to be fully relocated, so add in the symbol's value. */ | |
1c0d3aa6 NC |
1326 | *addendp += symbol; |
1327 | return TRUE; | |
1328 | } | |
1329 | ||
1330 | /* We must now calculate the dynamic symbol table index to use | |
1331 | in the relocation. */ | |
1332 | if (h != NULL | |
1333 | && (! info->symbolic || !h->root.def_regular) | |
1334 | /* h->root.dynindx may be -1 if this symbol was marked to | |
c3b7224a | 1335 | become local. */ |
1c0d3aa6 NC |
1336 | && h->root.dynindx != -1) |
1337 | { | |
1338 | indx = h->root.dynindx; | |
c3b7224a NC |
1339 | /* ??? glibc's ld.so just adds the final GOT entry to the |
1340 | relocation field. It therefore treats relocs against | |
1341 | defined symbols in the same way as relocs against | |
1342 | undefined symbols. */ | |
1c0d3aa6 NC |
1343 | defined_p = FALSE; |
1344 | } | |
1345 | else | |
1346 | { | |
9838404f | 1347 | indx = 0; |
1c0d3aa6 NC |
1348 | defined_p = TRUE; |
1349 | } | |
1350 | ||
1351 | /* If the relocation was previously an absolute relocation and | |
1352 | this symbol will not be referred to by the relocation, we must | |
1353 | adjust it by the value we give it in the dynamic symbol table. | |
1354 | Otherwise leave the job up to the dynamic linker. */ | |
1355 | if (defined_p && r_type != R_SCORE_REL32) | |
1356 | *addendp += symbol; | |
1357 | ||
1358 | /* The relocation is always an REL32 relocation because we don't | |
1359 | know where the shared library will wind up at load-time. */ | |
1360 | outrel[0].r_info = ELF32_R_INFO ((unsigned long) indx, R_SCORE_REL32); | |
1361 | ||
1362 | /* For strict adherence to the ABI specification, we should | |
1363 | generate a R_SCORE_64 relocation record by itself before the | |
1364 | _REL32/_64 record as well, such that the addend is read in as | |
1365 | a 64-bit value (REL32 is a 32-bit relocation, after all). | |
1366 | However, since none of the existing ELF64 SCORE dynamic | |
1367 | loaders seems to care, we don't waste space with these | |
1368 | artificial relocations. If this turns out to not be true, | |
1369 | score_elf_allocate_dynamic_relocations() should be tweaked so | |
1370 | as to make room for a pair of dynamic relocations per | |
1371 | invocation if ABI_64_P, and here we should generate an | |
1372 | additional relocation record with R_SCORE_64 by itself for a | |
1373 | NULL symbol before this relocation record. */ | |
1374 | outrel[1].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1375 | outrel[2].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1376 | ||
1377 | /* Adjust the output offset of the relocation to reference the | |
1378 | correct location in the output file. */ | |
1379 | outrel[0].r_offset += (input_section->output_section->vma | |
c3b7224a | 1380 | + input_section->output_offset); |
1c0d3aa6 | 1381 | outrel[1].r_offset += (input_section->output_section->vma |
c3b7224a | 1382 | + input_section->output_offset); |
1c0d3aa6 | 1383 | outrel[2].r_offset += (input_section->output_section->vma |
c3b7224a | 1384 | + input_section->output_offset); |
1c0d3aa6 NC |
1385 | |
1386 | /* Put the relocation back out. We have to use the special | |
1387 | relocation outputter in the 64-bit case since the 64-bit | |
1388 | relocation format is non-standard. */ | |
1389 | bfd_elf32_swap_reloc_out | |
1390 | (output_bfd, &outrel[0], | |
1391 | (sreloc->contents + sreloc->reloc_count * sizeof (Elf32_External_Rel))); | |
1392 | ||
1393 | /* We've now added another relocation. */ | |
1394 | ++sreloc->reloc_count; | |
1395 | ||
1396 | /* Make sure the output section is writable. The dynamic linker | |
1397 | will be writing to it. */ | |
1398 | elf_section_data (input_section->output_section)->this_hdr.sh_flags |= SHF_WRITE; | |
1399 | ||
1400 | return TRUE; | |
1401 | } | |
1402 | ||
1403 | static bfd_boolean | |
1404 | score_elf_create_got_section (bfd *abfd, | |
1405 | struct bfd_link_info *info, | |
c3b7224a | 1406 | bfd_boolean maybe_exclude) |
1c0d3aa6 NC |
1407 | { |
1408 | flagword flags; | |
1409 | asection *s; | |
1410 | struct elf_link_hash_entry *h; | |
1411 | struct bfd_link_hash_entry *bh; | |
1412 | struct score_got_info *g; | |
1413 | bfd_size_type amt; | |
1414 | ||
1415 | /* This function may be called more than once. */ | |
1416 | s = score_elf_got_section (abfd, TRUE); | |
1417 | if (s) | |
1418 | { | |
1419 | if (! maybe_exclude) | |
c3b7224a | 1420 | s->flags &= ~SEC_EXCLUDE; |
1c0d3aa6 NC |
1421 | return TRUE; |
1422 | } | |
1423 | ||
1424 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1425 | ||
1426 | if (maybe_exclude) | |
1427 | flags |= SEC_EXCLUDE; | |
1428 | ||
1429 | /* We have to use an alignment of 2**4 here because this is hardcoded | |
1430 | in the function stub generation and in the linker script. */ | |
3d4d4302 | 1431 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
b3549761 | 1432 | if (s == NULL |
1c0d3aa6 NC |
1433 | || ! bfd_set_section_alignment (abfd, s, 4)) |
1434 | return FALSE; | |
1435 | ||
1436 | /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the | |
1437 | linker script because we don't want to define the symbol if we | |
1438 | are not creating a global offset table. */ | |
1439 | bh = NULL; | |
1440 | if (! (_bfd_generic_link_add_one_symbol | |
c3b7224a NC |
1441 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, |
1442 | 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh))) | |
1c0d3aa6 NC |
1443 | return FALSE; |
1444 | ||
1445 | h = (struct elf_link_hash_entry *) bh; | |
1446 | h->non_elf = 0; | |
1447 | h->def_regular = 1; | |
1448 | h->type = STT_OBJECT; | |
1449 | ||
1450 | if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1451 | return FALSE; | |
1452 | ||
1453 | amt = sizeof (struct score_got_info); | |
1454 | g = bfd_alloc (abfd, amt); | |
1455 | if (g == NULL) | |
1456 | return FALSE; | |
1457 | ||
1458 | g->global_gotsym = NULL; | |
1459 | g->global_gotno = 0; | |
1460 | ||
1461 | g->local_gotno = SCORE_RESERVED_GOTNO; | |
1462 | g->assigned_gotno = SCORE_RESERVED_GOTNO; | |
1463 | g->next = NULL; | |
1464 | ||
1465 | g->got_entries = htab_try_create (1, score_elf_got_entry_hash, | |
c3b7224a | 1466 | score_elf_got_entry_eq, NULL); |
1c0d3aa6 NC |
1467 | if (g->got_entries == NULL) |
1468 | return FALSE; | |
1469 | score_elf_section_data (s)->u.got_info = g; | |
1470 | score_elf_section_data (s)->elf.this_hdr.sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
1471 | ||
1472 | return TRUE; | |
1473 | } | |
1474 | ||
1475 | /* Calculate the %high function. */ | |
1c0d3aa6 NC |
1476 | static bfd_vma |
1477 | score_elf_high (bfd_vma value) | |
1478 | { | |
1479 | return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff; | |
1480 | } | |
1481 | ||
1482 | /* Create a local GOT entry for VALUE. Return the index of the entry, | |
1483 | or -1 if it could not be created. */ | |
1c0d3aa6 NC |
1484 | static struct score_got_entry * |
1485 | score_elf_create_local_got_entry (bfd *abfd, | |
1486 | bfd *ibfd ATTRIBUTE_UNUSED, | |
c3b7224a NC |
1487 | struct score_got_info *gg, |
1488 | asection *sgot, bfd_vma value, | |
1489 | unsigned long r_symndx ATTRIBUTE_UNUSED, | |
1490 | struct score_elf_link_hash_entry *h ATTRIBUTE_UNUSED, | |
1491 | int r_type ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
1492 | { |
1493 | struct score_got_entry entry, **loc; | |
1494 | struct score_got_info *g; | |
1495 | ||
1496 | entry.abfd = NULL; | |
1497 | entry.symndx = -1; | |
1498 | entry.d.address = value; | |
1499 | ||
1500 | g = gg; | |
1501 | loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT); | |
1502 | if (*loc) | |
1503 | return *loc; | |
1504 | ||
1505 | entry.gotidx = SCORE_ELF_GOT_SIZE (abfd) * g->assigned_gotno++; | |
1506 | ||
1507 | *loc = bfd_alloc (abfd, sizeof entry); | |
1508 | ||
1509 | if (! *loc) | |
1510 | return NULL; | |
1511 | ||
1512 | memcpy (*loc, &entry, sizeof entry); | |
1513 | ||
1514 | if (g->assigned_gotno >= g->local_gotno) | |
1515 | { | |
1516 | (*loc)->gotidx = -1; | |
1517 | /* We didn't allocate enough space in the GOT. */ | |
1518 | (*_bfd_error_handler) | |
c3b7224a | 1519 | (_("not enough GOT space for local GOT entries")); |
1c0d3aa6 NC |
1520 | bfd_set_error (bfd_error_bad_value); |
1521 | return NULL; | |
1522 | } | |
1523 | ||
c3b7224a | 1524 | score_bfd_put_32 (abfd, value, (sgot->contents + entry.gotidx)); |
1c0d3aa6 NC |
1525 | |
1526 | return *loc; | |
1527 | } | |
1528 | ||
1529 | /* Find a GOT entry whose higher-order 16 bits are the same as those | |
1530 | for value. Return the index into the GOT for this entry. */ | |
1c0d3aa6 NC |
1531 | static bfd_vma |
1532 | score_elf_got16_entry (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
c3b7224a | 1533 | bfd_vma value, bfd_boolean external) |
1c0d3aa6 NC |
1534 | { |
1535 | asection *sgot; | |
1536 | struct score_got_info *g; | |
1537 | struct score_got_entry *entry; | |
1538 | ||
1539 | if (!external) | |
1540 | { | |
1541 | /* Although the ABI says that it is "the high-order 16 bits" that we | |
c3b7224a NC |
1542 | want, it is really the %high value. The complete value is |
1543 | calculated with a `addiu' of a LO16 relocation, just as with a | |
1544 | HI16/LO16 pair. */ | |
1c0d3aa6 NC |
1545 | value = score_elf_high (value) << 16; |
1546 | } | |
1547 | ||
1548 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1549 | ||
1550 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, 0, NULL, | |
c3b7224a | 1551 | R_SCORE_GOT15); |
1c0d3aa6 NC |
1552 | if (entry) |
1553 | return entry->gotidx; | |
1554 | else | |
1555 | return MINUS_ONE; | |
1556 | } | |
1557 | ||
1558 | static void | |
c3b7224a NC |
1559 | s3_bfd_score_elf_hide_symbol (struct bfd_link_info *info, |
1560 | struct elf_link_hash_entry *entry, | |
1561 | bfd_boolean force_local) | |
1c0d3aa6 NC |
1562 | { |
1563 | bfd *dynobj; | |
1564 | asection *got; | |
1565 | struct score_got_info *g; | |
1566 | struct score_elf_link_hash_entry *h; | |
1567 | ||
1568 | h = (struct score_elf_link_hash_entry *) entry; | |
1569 | if (h->forced_local) | |
1570 | return; | |
1571 | h->forced_local = TRUE; | |
1572 | ||
1573 | dynobj = elf_hash_table (info)->dynobj; | |
1574 | if (dynobj != NULL && force_local) | |
1575 | { | |
1576 | got = score_elf_got_section (dynobj, FALSE); | |
1577 | if (got == NULL) | |
c3b7224a | 1578 | return; |
1c0d3aa6 NC |
1579 | g = score_elf_section_data (got)->u.got_info; |
1580 | ||
1581 | if (g->next) | |
c3b7224a NC |
1582 | { |
1583 | struct score_got_entry e; | |
1584 | struct score_got_info *gg = g; | |
1585 | ||
1586 | /* Since we're turning what used to be a global symbol into a | |
1587 | local one, bump up the number of local entries of each GOT | |
1588 | that had an entry for it. This will automatically decrease | |
1589 | the number of global entries, since global_gotno is actually | |
1590 | the upper limit of global entries. */ | |
1591 | e.abfd = dynobj; | |
1592 | e.symndx = -1; | |
1593 | e.d.h = h; | |
1594 | ||
1595 | for (g = g->next; g != gg; g = g->next) | |
1596 | if (htab_find (g->got_entries, &e)) | |
1597 | { | |
1598 | BFD_ASSERT (g->global_gotno > 0); | |
1599 | g->local_gotno++; | |
1600 | g->global_gotno--; | |
1601 | } | |
1602 | ||
1603 | /* If this was a global symbol forced into the primary GOT, we | |
1604 | no longer need an entry for it. We can't release the entry | |
1605 | at this point, but we must at least stop counting it as one | |
1606 | of the symbols that required a forced got entry. */ | |
1607 | if (h->root.got.offset == 2) | |
1608 | { | |
1609 | BFD_ASSERT (gg->assigned_gotno > 0); | |
1610 | gg->assigned_gotno--; | |
1611 | } | |
1612 | } | |
1c0d3aa6 | 1613 | else if (g->global_gotno == 0 && g->global_gotsym == NULL) |
c3b7224a NC |
1614 | /* If we haven't got through GOT allocation yet, just bump up the |
1615 | number of local entries, as this symbol won't be counted as | |
1616 | global. */ | |
1617 | g->local_gotno++; | |
1c0d3aa6 | 1618 | else if (h->root.got.offset == 1) |
c3b7224a NC |
1619 | { |
1620 | /* If we're past non-multi-GOT allocation and this symbol had | |
1621 | been marked for a global got entry, give it a local entry | |
1622 | instead. */ | |
1623 | BFD_ASSERT (g->global_gotno > 0); | |
1624 | g->local_gotno++; | |
1625 | g->global_gotno--; | |
1626 | } | |
1c0d3aa6 NC |
1627 | } |
1628 | ||
1629 | _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local); | |
1630 | } | |
1631 | ||
1632 | /* If H is a symbol that needs a global GOT entry, but has a dynamic | |
1633 | symbol table index lower than any we've seen to date, record it for | |
1634 | posterity. */ | |
1c0d3aa6 NC |
1635 | static bfd_boolean |
1636 | score_elf_record_global_got_symbol (struct elf_link_hash_entry *h, | |
c3b7224a | 1637 | bfd *abfd, |
1c0d3aa6 | 1638 | struct bfd_link_info *info, |
c3b7224a | 1639 | struct score_got_info *g) |
1c0d3aa6 NC |
1640 | { |
1641 | struct score_got_entry entry, **loc; | |
1642 | ||
1643 | /* A global symbol in the GOT must also be in the dynamic symbol table. */ | |
1644 | if (h->dynindx == -1) | |
1645 | { | |
1646 | switch (ELF_ST_VISIBILITY (h->other)) | |
c3b7224a NC |
1647 | { |
1648 | case STV_INTERNAL: | |
1649 | case STV_HIDDEN: | |
1650 | s3_bfd_score_elf_hide_symbol (info, h, TRUE); | |
1651 | break; | |
1652 | } | |
1c0d3aa6 | 1653 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
c3b7224a | 1654 | return FALSE; |
1c0d3aa6 NC |
1655 | } |
1656 | ||
1657 | entry.abfd = abfd; | |
1658 | entry.symndx = -1; | |
1659 | entry.d.h = (struct score_elf_link_hash_entry *)h; | |
1660 | ||
1661 | loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT); | |
1662 | ||
1663 | /* If we've already marked this entry as needing GOT space, we don't | |
1664 | need to do it again. */ | |
1665 | if (*loc) | |
1666 | return TRUE; | |
1667 | ||
1668 | *loc = bfd_alloc (abfd, sizeof entry); | |
1669 | if (! *loc) | |
1670 | return FALSE; | |
1671 | ||
1672 | entry.gotidx = -1; | |
1673 | ||
1674 | memcpy (*loc, &entry, sizeof (entry)); | |
1675 | ||
1676 | if (h->got.offset != MINUS_ONE) | |
1677 | return TRUE; | |
1678 | ||
1679 | /* By setting this to a value other than -1, we are indicating that | |
1680 | there needs to be a GOT entry for H. Avoid using zero, as the | |
1681 | generic ELF copy_indirect_symbol tests for <= 0. */ | |
1682 | h->got.offset = 1; | |
1683 | ||
1684 | return TRUE; | |
1685 | } | |
1686 | ||
1687 | /* Reserve space in G for a GOT entry containing the value of symbol | |
1688 | SYMNDX in input bfd ABDF, plus ADDEND. */ | |
1c0d3aa6 NC |
1689 | static bfd_boolean |
1690 | score_elf_record_local_got_symbol (bfd *abfd, | |
1691 | long symndx, | |
1692 | bfd_vma addend, | |
c3b7224a | 1693 | struct score_got_info *g) |
1c0d3aa6 NC |
1694 | { |
1695 | struct score_got_entry entry, **loc; | |
1696 | ||
1697 | entry.abfd = abfd; | |
1698 | entry.symndx = symndx; | |
1699 | entry.d.addend = addend; | |
1700 | loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT); | |
1701 | ||
1702 | if (*loc) | |
1703 | return TRUE; | |
1704 | ||
1705 | entry.gotidx = g->local_gotno++; | |
1706 | ||
1707 | *loc = bfd_alloc (abfd, sizeof(entry)); | |
1708 | if (! *loc) | |
1709 | return FALSE; | |
1710 | ||
1711 | memcpy (*loc, &entry, sizeof (entry)); | |
1712 | ||
1713 | return TRUE; | |
1714 | } | |
1715 | ||
1716 | /* Returns the GOT offset at which the indicated address can be found. | |
1717 | If there is not yet a GOT entry for this value, create one. | |
1718 | Returns -1 if no satisfactory GOT offset can be found. */ | |
1c0d3aa6 NC |
1719 | static bfd_vma |
1720 | score_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
c3b7224a NC |
1721 | bfd_vma value, unsigned long r_symndx, |
1722 | struct score_elf_link_hash_entry *h, int r_type) | |
1c0d3aa6 NC |
1723 | { |
1724 | asection *sgot; | |
1725 | struct score_got_info *g; | |
1726 | struct score_got_entry *entry; | |
1727 | ||
1728 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1729 | ||
1730 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, | |
c3b7224a | 1731 | r_symndx, h, r_type); |
1c0d3aa6 NC |
1732 | if (!entry) |
1733 | return MINUS_ONE; | |
1734 | ||
1735 | else | |
1736 | return entry->gotidx; | |
1737 | } | |
1738 | ||
1739 | /* Returns the GOT index for the global symbol indicated by H. */ | |
1740 | ||
1741 | static bfd_vma | |
1742 | score_elf_global_got_index (bfd *abfd, struct elf_link_hash_entry *h) | |
1743 | { | |
91d6fa6a | 1744 | bfd_vma got_index; |
1c0d3aa6 NC |
1745 | asection *sgot; |
1746 | struct score_got_info *g; | |
1747 | long global_got_dynindx = 0; | |
1748 | ||
1749 | g = score_elf_got_info (abfd, &sgot); | |
1750 | if (g->global_gotsym != NULL) | |
1751 | global_got_dynindx = g->global_gotsym->dynindx; | |
1752 | ||
1753 | /* Once we determine the global GOT entry with the lowest dynamic | |
1754 | symbol table index, we must put all dynamic symbols with greater | |
1755 | indices into the GOT. That makes it easy to calculate the GOT | |
1756 | offset. */ | |
1757 | BFD_ASSERT (h->dynindx >= global_got_dynindx); | |
91d6fa6a NC |
1758 | got_index = ((h->dynindx - global_got_dynindx + g->local_gotno) * SCORE_ELF_GOT_SIZE (abfd)); |
1759 | BFD_ASSERT (got_index < sgot->size); | |
1c0d3aa6 | 1760 | |
91d6fa6a | 1761 | return got_index; |
1c0d3aa6 NC |
1762 | } |
1763 | ||
1764 | /* Returns the offset for the entry at the INDEXth position in the GOT. */ | |
91d6fa6a | 1765 | |
1c0d3aa6 | 1766 | static bfd_vma |
91d6fa6a NC |
1767 | score_elf_got_offset_from_index (bfd *dynobj, |
1768 | bfd *output_bfd, | |
1769 | bfd *input_bfd ATTRIBUTE_UNUSED, | |
1770 | bfd_vma got_index) | |
1c0d3aa6 NC |
1771 | { |
1772 | asection *sgot; | |
1773 | bfd_vma gp; | |
1c0d3aa6 | 1774 | |
c7e2358a | 1775 | score_elf_got_info (dynobj, &sgot); |
1c0d3aa6 NC |
1776 | gp = _bfd_get_gp_value (output_bfd); |
1777 | ||
91d6fa6a | 1778 | return sgot->output_section->vma + sgot->output_offset + got_index - gp; |
1c0d3aa6 NC |
1779 | } |
1780 | ||
1781 | /* Follow indirect and warning hash entries so that each got entry | |
1782 | points to the final symbol definition. P must point to a pointer | |
1783 | to the hash table we're traversing. Since this traversal may | |
1784 | modify the hash table, we set this pointer to NULL to indicate | |
1785 | we've made a potentially-destructive change to the hash table, so | |
1786 | the traversal must be restarted. */ | |
1787 | static int | |
1788 | score_elf_resolve_final_got_entry (void **entryp, void *p) | |
1789 | { | |
1790 | struct score_got_entry *entry = (struct score_got_entry *)*entryp; | |
1791 | htab_t got_entries = *(htab_t *)p; | |
1792 | ||
1793 | if (entry->abfd != NULL && entry->symndx == -1) | |
1794 | { | |
1795 | struct score_elf_link_hash_entry *h = entry->d.h; | |
1796 | ||
1797 | while (h->root.root.type == bfd_link_hash_indirect | |
c3b7224a NC |
1798 | || h->root.root.type == bfd_link_hash_warning) |
1799 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
1c0d3aa6 NC |
1800 | |
1801 | if (entry->d.h == h) | |
c3b7224a | 1802 | return 1; |
1c0d3aa6 NC |
1803 | |
1804 | entry->d.h = h; | |
1805 | ||
1806 | /* If we can't find this entry with the new bfd hash, re-insert | |
c3b7224a | 1807 | it, and get the traversal restarted. */ |
1c0d3aa6 | 1808 | if (! htab_find (got_entries, entry)) |
c3b7224a NC |
1809 | { |
1810 | htab_clear_slot (got_entries, entryp); | |
1811 | entryp = htab_find_slot (got_entries, entry, INSERT); | |
1812 | if (! *entryp) | |
1813 | *entryp = entry; | |
1814 | /* Abort the traversal, since the whole table may have | |
1815 | moved, and leave it up to the parent to restart the | |
1816 | process. */ | |
1817 | *(htab_t *)p = NULL; | |
1818 | return 0; | |
1819 | } | |
1c0d3aa6 | 1820 | /* We might want to decrement the global_gotno count, but it's |
c3b7224a | 1821 | either too early or too late for that at this point. */ |
1c0d3aa6 NC |
1822 | } |
1823 | ||
1824 | return 1; | |
1825 | } | |
1826 | ||
1827 | /* Turn indirect got entries in a got_entries table into their final locations. */ | |
1828 | static void | |
1829 | score_elf_resolve_final_got_entries (struct score_got_info *g) | |
1830 | { | |
1831 | htab_t got_entries; | |
1832 | ||
1833 | do | |
1834 | { | |
1835 | got_entries = g->got_entries; | |
1836 | ||
1837 | htab_traverse (got_entries, | |
c3b7224a NC |
1838 | score_elf_resolve_final_got_entry, |
1839 | &got_entries); | |
1c0d3aa6 NC |
1840 | } |
1841 | while (got_entries == NULL); | |
1842 | } | |
1843 | ||
1844 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. for -r */ | |
1c0d3aa6 NC |
1845 | static void |
1846 | score_elf_add_to_rel (bfd *abfd, | |
c3b7224a NC |
1847 | bfd_byte *address, |
1848 | reloc_howto_type *howto, | |
1849 | bfd_signed_vma increment) | |
1c0d3aa6 NC |
1850 | { |
1851 | bfd_signed_vma addend; | |
1852 | bfd_vma contents; | |
1853 | unsigned long offset; | |
1854 | unsigned long r_type = howto->type; | |
1855 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
1856 | ||
c3b7224a | 1857 | contents = score_bfd_get_32 (abfd, address); |
1c0d3aa6 NC |
1858 | /* Get the (signed) value from the instruction. */ |
1859 | addend = contents & howto->src_mask; | |
1860 | if (addend & ((howto->src_mask + 1) >> 1)) | |
1861 | { | |
1862 | bfd_signed_vma mask; | |
1863 | ||
1864 | mask = -1; | |
1865 | mask &= ~howto->src_mask; | |
1866 | addend |= mask; | |
1867 | } | |
1868 | /* Add in the increment, (which is a byte value). */ | |
1869 | switch (r_type) | |
1870 | { | |
1871 | case R_SCORE_PC19: | |
1872 | offset = | |
1873 | (((contents & howto->src_mask) & 0x3ff0000) >> 6) | ((contents & howto->src_mask) & 0x3ff); | |
1874 | offset += increment; | |
1875 | contents = | |
1876 | (contents & ~howto-> | |
1877 | src_mask) | (((offset << 6) & howto->src_mask) & 0x3ff0000) | (offset & 0x3ff); | |
c3b7224a | 1878 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1879 | break; |
1880 | case R_SCORE_HI16: | |
1881 | break; | |
1882 | case R_SCORE_LO16: | |
c3b7224a | 1883 | hi16_addend = score_bfd_get_32 (abfd, address - 4); |
1c0d3aa6 NC |
1884 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
1885 | offset = ((((contents >> 16) & 0x3) << 15) | (contents & 0x7fff)) >> 1; | |
1886 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
1887 | uvalue = increment + offset; | |
1888 | hi16_offset = (uvalue >> 16) << 1; | |
1889 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
1890 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 1891 | score_bfd_put_32 (abfd, hi16_value, address - 4); |
1c0d3aa6 NC |
1892 | offset = (uvalue & 0xffff) << 1; |
1893 | contents = (contents & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 1894 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1895 | break; |
1896 | case R_SCORE_24: | |
1897 | offset = | |
1898 | (((contents & howto->src_mask) >> 1) & 0x1ff8000) | ((contents & howto->src_mask) & 0x7fff); | |
1899 | offset += increment; | |
1900 | contents = | |
1901 | (contents & ~howto-> | |
1902 | src_mask) | (((offset << 1) & howto->src_mask) & 0x3ff0000) | (offset & 0x7fff); | |
c3b7224a | 1903 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 | 1904 | break; |
c3b7224a | 1905 | |
1c0d3aa6 NC |
1906 | case R_SCORE16_11: |
1907 | ||
c3b7224a | 1908 | contents = score_bfd_get_16 (abfd, address); |
1c0d3aa6 NC |
1909 | offset = contents & howto->src_mask; |
1910 | offset += increment; | |
1911 | contents = (contents & ~howto->src_mask) | (offset & howto->src_mask); | |
c3b7224a | 1912 | score_bfd_put_16 (abfd, contents, address); |
1c0d3aa6 NC |
1913 | |
1914 | break; | |
1915 | case R_SCORE16_PC8: | |
1916 | ||
c3b7224a NC |
1917 | contents = score_bfd_get_16 (abfd, address); |
1918 | offset = (contents & howto->src_mask) + ((increment >> 1) & 0x1ff); | |
1919 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1920 | score_bfd_put_16 (abfd, contents, address); | |
1921 | ||
1922 | break; | |
1923 | ||
1924 | case R_SCORE_BCMP: | |
1925 | contents = score_bfd_get_32 (abfd, address); | |
1926 | offset = (contents & howto->src_mask); | |
1927 | offset <<= howto->rightshift; | |
1928 | offset += increment; | |
1929 | offset >>= howto->rightshift; | |
1930 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1931 | score_bfd_put_32 (abfd, contents, address); | |
1932 | break; | |
1933 | ||
1934 | case R_SCORE_IMM30: | |
1935 | contents = score_bfd_get_48 (abfd, address); | |
1936 | offset = (contents & howto->src_mask); | |
1937 | offset <<= howto->rightshift; | |
1938 | offset += increment; | |
1939 | offset >>= howto->rightshift; | |
1c0d3aa6 | 1940 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); |
c3b7224a NC |
1941 | score_bfd_put_48 (abfd, contents, address); |
1942 | break; | |
1c0d3aa6 | 1943 | |
c3b7224a NC |
1944 | case R_SCORE_IMM32: |
1945 | contents = score_bfd_get_48 (abfd, address); | |
1946 | offset = (contents & howto->src_mask); | |
1947 | offset += increment; | |
1948 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1949 | score_bfd_put_48 (abfd, contents, address); | |
1c0d3aa6 | 1950 | break; |
c3b7224a | 1951 | |
1c0d3aa6 NC |
1952 | default: |
1953 | addend += increment; | |
1954 | contents = (contents & ~howto->dst_mask) | (addend & howto->dst_mask); | |
c3b7224a | 1955 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1956 | break; |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* Perform a relocation as part of a final link. */ | |
1c0d3aa6 NC |
1961 | static bfd_reloc_status_type |
1962 | score_elf_final_link_relocate (reloc_howto_type *howto, | |
c3b7224a NC |
1963 | bfd *input_bfd, |
1964 | bfd *output_bfd, | |
1965 | asection *input_section, | |
1966 | bfd_byte *contents, | |
1967 | Elf_Internal_Rela *rel, | |
1968 | Elf_Internal_Rela *relocs, | |
1969 | bfd_vma symbol, | |
1970 | struct bfd_link_info *info, | |
1971 | const char *sym_name ATTRIBUTE_UNUSED, | |
1972 | int sym_flags ATTRIBUTE_UNUSED, | |
1973 | struct score_elf_link_hash_entry *h, | |
1974 | asection **local_sections, | |
1c0d3aa6 NC |
1975 | bfd_boolean gp_disp_p) |
1976 | { | |
1977 | unsigned long r_type; | |
1978 | unsigned long r_symndx; | |
1979 | bfd_byte *hit_data = contents + rel->r_offset; | |
1980 | bfd_vma addend; | |
1981 | /* The final GP value to be used for the relocatable, executable, or | |
1982 | shared object file being produced. */ | |
1983 | bfd_vma gp = MINUS_ONE; | |
1984 | /* The place (section offset or address) of the storage unit being relocated. */ | |
1985 | bfd_vma rel_addr; | |
1c0d3aa6 NC |
1986 | /* The offset into the global offset table at which the address of the relocation entry |
1987 | symbol, adjusted by the addend, resides during execution. */ | |
1988 | bfd_vma g = MINUS_ONE; | |
1989 | /* TRUE if the symbol referred to by this relocation is a local symbol. */ | |
1990 | bfd_boolean local_p; | |
1991 | /* The eventual value we will relocate. */ | |
1992 | bfd_vma value = symbol; | |
1993 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue, offset, abs_value = 0; | |
1994 | ||
c3b7224a | 1995 | |
1c0d3aa6 NC |
1996 | if (elf_gp (output_bfd) == 0) |
1997 | { | |
1998 | struct bfd_link_hash_entry *bh; | |
1999 | asection *o; | |
2000 | ||
2001 | bh = bfd_link_hash_lookup (info->hash, "_gp", 0, 0, 1); | |
c3b7224a | 2002 | if (bh != NULL && bh->type == bfd_link_hash_defined) |
1c0d3aa6 NC |
2003 | elf_gp (output_bfd) = (bh->u.def.value |
2004 | + bh->u.def.section->output_section->vma | |
2005 | + bh->u.def.section->output_offset); | |
2006 | else if (info->relocatable) | |
2007 | { | |
2008 | bfd_vma lo = -1; | |
2009 | ||
2010 | /* Find the GP-relative section with the lowest offset. */ | |
c3b7224a | 2011 | for (o = output_bfd->sections; o != NULL; o = o->next) |
1c0d3aa6 NC |
2012 | if (o->vma < lo) |
2013 | lo = o->vma; | |
2014 | /* And calculate GP relative to that. */ | |
2015 | elf_gp (output_bfd) = lo + ELF_SCORE_GP_OFFSET (input_bfd); | |
2016 | } | |
2017 | else | |
2018 | { | |
2019 | /* If the relocate_section function needs to do a reloc | |
2020 | involving the GP value, it should make a reloc_dangerous | |
2021 | callback to warn that GP is not defined. */ | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | /* Parse the relocation. */ | |
2026 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2027 | r_type = ELF32_R_TYPE (rel->r_info); | |
2028 | rel_addr = (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
c3b7224a | 2029 | local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, TRUE); |
1c0d3aa6 | 2030 | |
1c0d3aa6 NC |
2031 | if (r_type == R_SCORE_GOT15) |
2032 | { | |
2033 | const Elf_Internal_Rela *relend; | |
2034 | const Elf_Internal_Rela *lo16_rel; | |
2035 | const struct elf_backend_data *bed; | |
2036 | bfd_vma lo_value = 0; | |
2037 | ||
1c0d3aa6 NC |
2038 | bed = get_elf_backend_data (output_bfd); |
2039 | relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel; | |
2040 | lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend); | |
0150d082 | 2041 | if ((local_p) && (lo16_rel != NULL)) |
c3b7224a NC |
2042 | { |
2043 | bfd_vma tmp = 0; | |
2044 | tmp = score_bfd_get_32 (input_bfd, contents + lo16_rel->r_offset); | |
2045 | lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1); | |
2046 | } | |
0150d082 | 2047 | addend = lo_value; |
1c0d3aa6 | 2048 | } |
c3b7224a NC |
2049 | /* For score3 R_SCORE_ABS32. */ |
2050 | else if (r_type == R_SCORE_ABS32 || r_type == R_SCORE_REL32) | |
1c0d3aa6 NC |
2051 | { |
2052 | addend = (bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask; | |
2053 | } | |
c3b7224a NC |
2054 | else |
2055 | { | |
2056 | addend = (score_bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask; | |
2057 | } | |
1c0d3aa6 | 2058 | |
1c0d3aa6 NC |
2059 | /* If we haven't already determined the GOT offset, or the GP value, |
2060 | and we're going to need it, get it now. */ | |
2061 | switch (r_type) | |
2062 | { | |
2063 | case R_SCORE_CALL15: | |
2064 | case R_SCORE_GOT15: | |
2065 | if (!local_p) | |
2066 | { | |
0150d082 ML |
2067 | g = score_elf_global_got_index (elf_hash_table (info)->dynobj, |
2068 | (struct elf_link_hash_entry *) h); | |
4dfe6ac6 | 2069 | if ((! elf_hash_table (info)->dynamic_sections_created |
0150d082 ML |
2070 | || (info->shared |
2071 | && (info->symbolic || h->root.dynindx == -1) | |
2072 | && h->root.def_regular))) | |
2073 | { | |
2074 | /* This is a static link or a -Bsymbolic link. The | |
2075 | symbol is defined locally, or was forced to be local. | |
2076 | We must initialize this entry in the GOT. */ | |
2077 | bfd *tmpbfd = elf_hash_table (info)->dynobj; | |
2078 | asection *sgot = score_elf_got_section (tmpbfd, FALSE); | |
c3b7224a | 2079 | score_bfd_put_32 (tmpbfd, value, sgot->contents + g); |
0150d082 ML |
2080 | } |
2081 | } | |
1c0d3aa6 NC |
2082 | else if (r_type == R_SCORE_GOT15 || r_type == R_SCORE_CALL15) |
2083 | { | |
c3b7224a NC |
2084 | /* There's no need to create a local GOT entry here; the |
2085 | calculation for a local GOT15 entry does not involve G. */ | |
2086 | ; | |
2087 | } | |
1c0d3aa6 NC |
2088 | else |
2089 | { | |
c3b7224a | 2090 | g = score_elf_local_got_index (output_bfd, input_bfd, info, |
1c0d3aa6 | 2091 | symbol + addend, r_symndx, h, r_type); |
c3b7224a NC |
2092 | if (g == MINUS_ONE) |
2093 | return bfd_reloc_outofrange; | |
1c0d3aa6 NC |
2094 | } |
2095 | ||
2096 | /* Convert GOT indices to actual offsets. */ | |
2097 | g = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
c3b7224a | 2098 | output_bfd, input_bfd, g); |
1c0d3aa6 NC |
2099 | break; |
2100 | ||
2101 | case R_SCORE_HI16: | |
2102 | case R_SCORE_LO16: | |
2103 | case R_SCORE_GPREL32: | |
1c0d3aa6 NC |
2104 | gp = _bfd_get_gp_value (output_bfd); |
2105 | break; | |
2106 | ||
2107 | case R_SCORE_GP15: | |
2108 | gp = _bfd_get_gp_value (output_bfd); | |
2109 | ||
2110 | default: | |
2111 | break; | |
2112 | } | |
2113 | ||
2114 | switch (r_type) | |
2115 | { | |
2116 | case R_SCORE_NONE: | |
2117 | return bfd_reloc_ok; | |
2118 | ||
2119 | case R_SCORE_ABS32: | |
2120 | case R_SCORE_REL32: | |
2121 | if ((info->shared | |
c3b7224a NC |
2122 | || (elf_hash_table (info)->dynamic_sections_created |
2123 | && h != NULL | |
2124 | && h->root.def_dynamic | |
2125 | && !h->root.def_regular)) | |
cf35638d | 2126 | && r_symndx != STN_UNDEF |
c3b7224a NC |
2127 | && (input_section->flags & SEC_ALLOC) != 0) |
2128 | { | |
2129 | /* If we're creating a shared library, or this relocation is against a symbol | |
1c0d3aa6 NC |
2130 | in a shared library, then we can't know where the symbol will end up. |
2131 | So, we create a relocation record in the output, and leave the job up | |
2132 | to the dynamic linker. */ | |
c3b7224a NC |
2133 | value = addend; |
2134 | if (!score_elf_create_dynamic_relocation (output_bfd, info, rel, h, | |
2135 | symbol, &value, | |
2136 | input_section)) | |
2137 | return bfd_reloc_undefined; | |
2138 | } | |
cf35638d TS |
2139 | else if (r_symndx == STN_UNDEF) |
2140 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols | |
c3b7224a NC |
2141 | from removed linkonce sections, or sections discarded by |
2142 | a linker script. */ | |
2143 | value = 0; | |
1c0d3aa6 | 2144 | else |
c3b7224a NC |
2145 | { |
2146 | if (r_type != R_SCORE_REL32) | |
2147 | value = symbol + addend; | |
2148 | else | |
2149 | value = addend; | |
2150 | } | |
1c0d3aa6 NC |
2151 | value &= howto->dst_mask; |
2152 | bfd_put_32 (input_bfd, value, hit_data); | |
2153 | return bfd_reloc_ok; | |
2154 | ||
2155 | case R_SCORE_ABS16: | |
2156 | value += addend; | |
2157 | if ((long)value > 0x7fff || (long)value < -0x8000) | |
2158 | return bfd_reloc_overflow; | |
c3b7224a | 2159 | score_bfd_put_16 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2160 | return bfd_reloc_ok; |
2161 | ||
2162 | case R_SCORE_24: | |
c3b7224a | 2163 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2164 | offset = (((addend & howto->src_mask) >> 1) & 0x1ff8000) | ((addend & howto->src_mask) & 0x7fff); |
2165 | if ((offset & 0x1000000) != 0) | |
2166 | offset |= 0xfe000000; | |
2167 | value += offset; | |
c3b7224a NC |
2168 | abs_value = abs (value - rel_addr); |
2169 | if ((abs_value & 0xfe000000) != 0) | |
2170 | return bfd_reloc_overflow; | |
1c0d3aa6 NC |
2171 | addend = (addend & ~howto->src_mask) |
2172 | | (((value << 1) & howto->src_mask) & 0x3ff0000) | (value & 0x7fff); | |
c3b7224a | 2173 | score_bfd_put_32 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2174 | return bfd_reloc_ok; |
2175 | ||
c3b7224a NC |
2176 | /* signed imm32. */ |
2177 | case R_SCORE_IMM30: | |
2178 | { | |
2179 | int not_word_align_p = 0; | |
2180 | bfd_vma imm_offset = 0; | |
2181 | addend = score_bfd_get_48 (input_bfd, hit_data); | |
2182 | imm_offset = ((addend >> 7) & 0xff) | |
2183 | | (((addend >> 16) & 0x7fff) << 8) | |
2184 | | (((addend >> 32) & 0x7f) << 23); | |
2185 | imm_offset <<= howto->rightshift; | |
2186 | value += imm_offset; | |
2187 | value &= 0xffffffff; | |
2188 | ||
2189 | /* Check lw48/sw48 rd, value/label word align. */ | |
2190 | if ((value & 0x3) != 0) | |
2191 | not_word_align_p = 1; | |
2192 | ||
2193 | value >>= howto->rightshift; | |
2194 | addend = (addend & ~howto->src_mask) | |
2195 | | (((value & 0xff) >> 0) << 7) | |
2196 | | (((value & 0x7fff00) >> 8) << 16) | |
2197 | | (((value & 0x3f800000) >> 23) << 32); | |
2198 | score_bfd_put_48 (input_bfd, addend, hit_data); | |
2199 | if (not_word_align_p) | |
2200 | return bfd_reloc_other; | |
2201 | else | |
2202 | return bfd_reloc_ok; | |
2203 | } | |
2204 | ||
2205 | case R_SCORE_IMM32: | |
2206 | { | |
2207 | bfd_vma imm_offset = 0; | |
2208 | addend = score_bfd_get_48 (input_bfd, hit_data); | |
2209 | imm_offset = ((addend >> 5) & 0x3ff) | |
2210 | | (((addend >> 16) & 0x7fff) << 10) | |
2211 | | (((addend >> 32) & 0x7f) << 25); | |
2212 | value += imm_offset; | |
2213 | value &= 0xffffffff; | |
2214 | addend = (addend & ~howto->src_mask) | |
2215 | | ((value & 0x3ff) << 5) | |
2216 | | (((value >> 10) & 0x7fff) << 16) | |
2217 | | (((value >> 25) & 0x7f) << 32); | |
2218 | score_bfd_put_48 (input_bfd, addend, hit_data); | |
2219 | return bfd_reloc_ok; | |
2220 | } | |
2221 | ||
1c0d3aa6 | 2222 | case R_SCORE_PC19: |
c3b7224a | 2223 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2224 | offset = (((addend & howto->src_mask) & 0x3ff0000) >> 6) | ((addend & howto->src_mask) & 0x3ff); |
2225 | if ((offset & 0x80000) != 0) | |
2226 | offset |= 0xfff00000; | |
2227 | abs_value = value = value - rel_addr + offset; | |
2228 | /* exceed 20 bit : overflow. */ | |
2229 | if ((abs_value & 0x80000000) == 0x80000000) | |
2230 | abs_value = 0xffffffff - value + 1; | |
2231 | if ((abs_value & 0xfff80000) != 0) | |
2232 | return bfd_reloc_overflow; | |
2233 | addend = (addend & ~howto->src_mask) | |
2234 | | (((value << 6) & howto->src_mask) & 0x3ff0000) | (value & 0x3ff); | |
c3b7224a | 2235 | score_bfd_put_32 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2236 | return bfd_reloc_ok; |
2237 | ||
2238 | case R_SCORE16_11: | |
c3b7224a | 2239 | addend = score_bfd_get_16 (input_bfd, hit_data); |
1c0d3aa6 NC |
2240 | offset = addend & howto->src_mask; |
2241 | if ((offset & 0x800) != 0) /* Offset is negative. */ | |
2242 | offset |= 0xfffff000; | |
2243 | value += offset; | |
c3b7224a NC |
2244 | abs_value = abs (value - rel_addr); |
2245 | if ((abs_value & 0xfffff000) != 0) | |
2246 | return bfd_reloc_overflow; | |
1c0d3aa6 | 2247 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); |
c3b7224a | 2248 | score_bfd_put_16 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2249 | return bfd_reloc_ok; |
2250 | ||
2251 | case R_SCORE16_PC8: | |
c3b7224a | 2252 | addend = score_bfd_get_16 (input_bfd, hit_data); |
1c0d3aa6 | 2253 | offset = (addend & howto->src_mask) << 1; |
c3b7224a | 2254 | if ((offset & 0x200) != 0) /* Offset is negative. */ |
1c0d3aa6 NC |
2255 | offset |= 0xfffffe00; |
2256 | abs_value = value = value - rel_addr + offset; | |
2257 | /* Sign bit + exceed 9 bit. */ | |
c3b7224a | 2258 | if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00)) |
1c0d3aa6 NC |
2259 | return bfd_reloc_overflow; |
2260 | value >>= 1; | |
2261 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); | |
c3b7224a NC |
2262 | score_bfd_put_16 (input_bfd, addend, hit_data); |
2263 | return bfd_reloc_ok; | |
2264 | ||
2265 | case R_SCORE_BCMP: | |
2266 | addend = score_bfd_get_32 (input_bfd, hit_data); | |
2267 | offset = (addend & howto->src_mask) << howto->rightshift; | |
2268 | if ((offset & 0x200) != 0) /* Offset is negative. */ | |
2269 | offset |= 0xfffffe00; | |
2270 | value = value - rel_addr + offset; | |
2271 | /* Sign bit + exceed 9 bit. */ | |
2272 | if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00)) | |
2273 | return bfd_reloc_overflow; | |
2274 | value >>= howto->rightshift; | |
2275 | addend = (addend & ~howto->src_mask) | |
2276 | | (value & 0x1) | |
2277 | | (((value >> 1) & 0x7) << 7) | |
2278 | | (((value >> 4) & 0x1f) << 21); | |
2279 | score_bfd_put_32 (input_bfd, addend, hit_data); | |
1c0d3aa6 NC |
2280 | return bfd_reloc_ok; |
2281 | ||
2282 | case R_SCORE_HI16: | |
2283 | return bfd_reloc_ok; | |
2284 | ||
2285 | case R_SCORE_LO16: | |
c3b7224a | 2286 | hi16_addend = score_bfd_get_32 (input_bfd, hit_data - 4); |
1c0d3aa6 | 2287 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
c3b7224a | 2288 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2289 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
2290 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
2291 | ||
2292 | if (!gp_disp_p) | |
c3b7224a | 2293 | uvalue = value + offset; |
1c0d3aa6 | 2294 | else |
c3b7224a | 2295 | uvalue = offset + gp - rel_addr + 4; |
1c0d3aa6 NC |
2296 | |
2297 | hi16_offset = (uvalue >> 16) << 1; | |
2298 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
2299 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 2300 | score_bfd_put_32 (input_bfd, hi16_value, hit_data - 4); |
1c0d3aa6 NC |
2301 | offset = (uvalue & 0xffff) << 1; |
2302 | value = (addend & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 2303 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2304 | return bfd_reloc_ok; |
2305 | ||
2306 | case R_SCORE_GP15: | |
c3b7224a | 2307 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2308 | offset = addend & 0x7fff; |
2309 | if ((offset & 0x4000) == 0x4000) | |
2310 | offset |= 0xffffc000; | |
2311 | value = value + offset - gp; | |
2312 | if (((value & 0xffffc000) != 0) && ((value & 0xffffc000) != 0xffffc000)) | |
2313 | return bfd_reloc_overflow; | |
2314 | value = (addend & ~howto->src_mask) | (value & howto->src_mask); | |
c3b7224a | 2315 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2316 | return bfd_reloc_ok; |
2317 | ||
2318 | case R_SCORE_GOT15: | |
2319 | case R_SCORE_CALL15: | |
2320 | if (local_p) | |
c3b7224a NC |
2321 | { |
2322 | bfd_boolean forced; | |
1c0d3aa6 | 2323 | |
c3b7224a | 2324 | /* The special case is when the symbol is forced to be local. We need the |
1c0d3aa6 | 2325 | full address in the GOT since no R_SCORE_GOT_LO16 relocation follows. */ |
c3b7224a NC |
2326 | forced = ! score_elf_local_relocation_p (input_bfd, rel, |
2327 | local_sections, FALSE); | |
2328 | value = score_elf_got16_entry (output_bfd, input_bfd, info, | |
2329 | symbol + addend, forced); | |
2330 | if (value == MINUS_ONE) | |
2331 | return bfd_reloc_outofrange; | |
2332 | value = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
2333 | output_bfd, input_bfd, value); | |
2334 | } | |
1c0d3aa6 | 2335 | else |
c3b7224a NC |
2336 | { |
2337 | value = g; | |
2338 | } | |
1c0d3aa6 NC |
2339 | |
2340 | if ((long) value > 0x3fff || (long) value < -0x4000) | |
2341 | return bfd_reloc_overflow; | |
0150d082 | 2342 | |
c3b7224a | 2343 | addend = score_bfd_get_32 (input_bfd, hit_data); |
0150d082 | 2344 | value = (addend & ~howto->dst_mask) | (value & howto->dst_mask); |
c3b7224a | 2345 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2346 | return bfd_reloc_ok; |
2347 | ||
2348 | case R_SCORE_GPREL32: | |
2349 | value = (addend + symbol - gp); | |
2350 | value &= howto->dst_mask; | |
c3b7224a | 2351 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2352 | return bfd_reloc_ok; |
2353 | ||
2354 | case R_SCORE_GOT_LO16: | |
c3b7224a | 2355 | addend = score_bfd_get_32 (input_bfd, hit_data); |
0150d082 | 2356 | value = (((addend >> 16) & 0x3) << 14) | ((addend & 0x7fff) >> 1); |
1c0d3aa6 | 2357 | value += symbol; |
c3b7224a | 2358 | value = (addend & (~(howto->dst_mask))) | ((value & 0x3fff) << 1) |
0150d082 | 2359 | | (((value >> 14) & 0x3) << 16); |
1c0d3aa6 | 2360 | |
c3b7224a | 2361 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2362 | return bfd_reloc_ok; |
2363 | ||
2364 | case R_SCORE_DUMMY_HI16: | |
2365 | return bfd_reloc_ok; | |
2366 | ||
2367 | case R_SCORE_GNU_VTINHERIT: | |
2368 | case R_SCORE_GNU_VTENTRY: | |
2369 | /* We don't do anything with these at present. */ | |
2370 | return bfd_reloc_continue; | |
2371 | ||
2372 | default: | |
2373 | return bfd_reloc_notsupported; | |
2374 | } | |
2375 | } | |
2376 | ||
2377 | /* Score backend functions. */ | |
1c0d3aa6 | 2378 | static void |
c3b7224a NC |
2379 | s3_bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
2380 | arelent *bfd_reloc, | |
2381 | Elf_Internal_Rela *elf_reloc) | |
1c0d3aa6 NC |
2382 | { |
2383 | unsigned int r_type; | |
2384 | ||
2385 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
c3b7224a | 2386 | if (r_type >= ARRAY_SIZE (elf32_score_howto_table)) |
1c0d3aa6 NC |
2387 | bfd_reloc->howto = NULL; |
2388 | else | |
2389 | bfd_reloc->howto = &elf32_score_howto_table[r_type]; | |
2390 | } | |
2391 | ||
2392 | /* Relocate an score ELF section. */ | |
1c0d3aa6 | 2393 | static bfd_boolean |
c3b7224a NC |
2394 | s3_bfd_score_elf_relocate_section (bfd *output_bfd, |
2395 | struct bfd_link_info *info, | |
2396 | bfd *input_bfd, | |
2397 | asection *input_section, | |
2398 | bfd_byte *contents, | |
2399 | Elf_Internal_Rela *relocs, | |
2400 | Elf_Internal_Sym *local_syms, | |
2401 | asection **local_sections) | |
1c0d3aa6 NC |
2402 | { |
2403 | Elf_Internal_Shdr *symtab_hdr; | |
1c0d3aa6 NC |
2404 | Elf_Internal_Rela *rel; |
2405 | Elf_Internal_Rela *relend; | |
2406 | const char *name; | |
2407 | unsigned long offset; | |
2408 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
2409 | size_t extsymoff; | |
2410 | bfd_boolean gp_disp_p = FALSE; | |
2411 | ||
1c0d3aa6 NC |
2412 | /* Sort dynsym. */ |
2413 | if (elf_hash_table (info)->dynamic_sections_created) | |
2414 | { | |
2415 | bfd_size_type dynsecsymcount = 0; | |
2416 | if (info->shared) | |
c3b7224a NC |
2417 | { |
2418 | asection * p; | |
2419 | const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); | |
2420 | ||
2421 | for (p = output_bfd->sections; p ; p = p->next) | |
2422 | if ((p->flags & SEC_EXCLUDE) == 0 | |
2423 | && (p->flags & SEC_ALLOC) != 0 | |
2424 | && !(*bed->elf_backend_omit_section_dynsym) (output_bfd, info, p)) | |
2425 | ++ dynsecsymcount; | |
2426 | } | |
1c0d3aa6 NC |
2427 | |
2428 | if (!score_elf_sort_hash_table (info, dynsecsymcount + 1)) | |
c3b7224a | 2429 | return FALSE; |
1c0d3aa6 NC |
2430 | } |
2431 | ||
2432 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
c3b7224a | 2433 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
2434 | rel = relocs; |
2435 | relend = relocs + input_section->reloc_count; | |
2436 | for (; rel < relend; rel++) | |
2437 | { | |
2438 | int r_type; | |
2439 | reloc_howto_type *howto; | |
2440 | unsigned long r_symndx; | |
2441 | Elf_Internal_Sym *sym; | |
2442 | asection *sec; | |
2443 | struct score_elf_link_hash_entry *h; | |
2444 | bfd_vma relocation = 0; | |
2445 | bfd_reloc_status_type r; | |
2446 | arelent bfd_reloc; | |
2447 | ||
2448 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2449 | r_type = ELF32_R_TYPE (rel->r_info); | |
2450 | ||
c3b7224a | 2451 | s3_bfd_score_info_to_howto (input_bfd, &bfd_reloc, (Elf_Internal_Rela *) rel); |
1c0d3aa6 NC |
2452 | howto = bfd_reloc.howto; |
2453 | ||
1c0d3aa6 NC |
2454 | h = NULL; |
2455 | sym = NULL; | |
2456 | sec = NULL; | |
2457 | ||
2458 | if (r_symndx < extsymoff) | |
2459 | { | |
2460 | sym = local_syms + r_symndx; | |
2461 | sec = local_sections[r_symndx]; | |
f36b9bcd | 2462 | relocation = (sec->output_section->vma |
c3b7224a NC |
2463 | + sec->output_offset |
2464 | + sym->st_value); | |
f36b9bcd | 2465 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
1c0d3aa6 | 2466 | |
ab96bf03 | 2467 | if (!info->relocatable |
c3b7224a NC |
2468 | && (sec->flags & SEC_MERGE) |
2469 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1c0d3aa6 NC |
2470 | { |
2471 | asection *msec; | |
2472 | bfd_vma addend, value; | |
2473 | ||
2474 | switch (r_type) | |
2475 | { | |
2476 | case R_SCORE_HI16: | |
2477 | break; | |
2478 | case R_SCORE_LO16: | |
c3b7224a | 2479 | hi16_addend = score_bfd_get_32 (input_bfd, contents + rel->r_offset - 4); |
1c0d3aa6 | 2480 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
c3b7224a | 2481 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); |
1c0d3aa6 NC |
2482 | offset = ((((value >> 16) & 0x3) << 15) | (value & 0x7fff)) >> 1; |
2483 | addend = (hi16_offset << 16) | (offset & 0xffff); | |
2484 | msec = sec; | |
2485 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2486 | addend -= relocation; | |
2487 | addend += msec->output_section->vma + msec->output_offset; | |
2488 | uvalue = addend; | |
2489 | hi16_offset = (uvalue >> 16) << 1; | |
2490 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
2491 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 2492 | score_bfd_put_32 (input_bfd, hi16_value, contents + rel->r_offset - 4); |
1c0d3aa6 NC |
2493 | offset = (uvalue & 0xffff) << 1; |
2494 | value = (value & (~(howto->dst_mask))) | |
2495 | | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 2496 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); |
1c0d3aa6 | 2497 | break; |
c3b7224a NC |
2498 | |
2499 | case R_SCORE_IMM32: | |
2500 | { | |
2501 | value = score_bfd_get_48 (input_bfd, contents + rel->r_offset); | |
2502 | addend = ((value >> 5) & 0x3ff) | |
2503 | | (((value >> 16) & 0x7fff) << 10) | |
2504 | | (((value >> 32) & 0x7f) << 25); | |
2505 | msec = sec; | |
2506 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2507 | addend -= relocation; | |
2508 | addend += msec->output_section->vma + msec->output_offset; | |
2509 | addend &= 0xffffffff; | |
2510 | value = (value & ~howto->src_mask) | |
2511 | | ((addend & 0x3ff) << 5) | |
2512 | | (((addend >> 10) & 0x7fff) << 16) | |
2513 | | (((addend >> 25) & 0x7f) << 32); | |
2514 | score_bfd_put_48 (input_bfd, value, contents + rel->r_offset); | |
2515 | break; | |
2516 | } | |
2517 | ||
2518 | case R_SCORE_IMM30: | |
2519 | { | |
2520 | int not_word_align_p = 0; | |
2521 | value = score_bfd_get_48 (input_bfd, contents + rel->r_offset); | |
2522 | addend = ((value >> 7) & 0xff) | |
2523 | | (((value >> 16) & 0x7fff) << 8) | |
2524 | | (((value >> 32) & 0x7f) << 23); | |
2525 | addend <<= howto->rightshift; | |
2526 | msec = sec; | |
2527 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2528 | addend -= relocation; | |
2529 | addend += msec->output_section->vma + msec->output_offset; | |
2530 | addend &= 0xffffffff; | |
2531 | ||
2532 | /* Check lw48/sw48 rd, value/label word align. */ | |
2533 | if ((addend & 0x3) != 0) | |
2534 | not_word_align_p = 1; | |
2535 | ||
2536 | addend >>= howto->rightshift; | |
2537 | value = (value & ~howto->src_mask) | |
2538 | | (((addend & 0xff) >> 0) << 7) | |
2539 | | (((addend & 0x7fff00) >> 8) << 16) | |
2540 | | (((addend & 0x3f800000) >> 23) << 32); | |
2541 | score_bfd_put_48 (input_bfd, value, contents + rel->r_offset); | |
2542 | ||
2543 | if (not_word_align_p) | |
2544 | return bfd_reloc_other; | |
2545 | else | |
2546 | break; | |
2547 | } | |
2548 | ||
0150d082 | 2549 | case R_SCORE_GOT_LO16: |
c3b7224a | 2550 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); |
0150d082 ML |
2551 | addend = (((value >> 16) & 0x3) << 14) | ((value & 0x7fff) >> 1); |
2552 | msec = sec; | |
2553 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2554 | addend += msec->output_section->vma + msec->output_offset; | |
2555 | value = (value & (~(howto->dst_mask))) | ((addend & 0x3fff) << 1) | |
2556 | | (((addend >> 14) & 0x3) << 16); | |
2557 | ||
c3b7224a | 2558 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); |
0150d082 | 2559 | break; |
c3b7224a NC |
2560 | |
2561 | case R_SCORE_ABS32: | |
2562 | case R_SCORE_REL32: | |
1c0d3aa6 NC |
2563 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); |
2564 | /* Get the (signed) value from the instruction. */ | |
2565 | addend = value & howto->src_mask; | |
2566 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2567 | { | |
2568 | bfd_signed_vma mask; | |
2569 | ||
2570 | mask = -1; | |
2571 | mask &= ~howto->src_mask; | |
2572 | addend |= mask; | |
2573 | } | |
2574 | msec = sec; | |
2575 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2576 | addend += msec->output_section->vma + msec->output_offset; | |
2577 | value = (value & ~howto->dst_mask) | (addend & howto->dst_mask); | |
2578 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2579 | break; | |
c3b7224a NC |
2580 | |
2581 | default: | |
2582 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2583 | /* Get the (signed) value from the instruction. */ | |
2584 | addend = value & howto->src_mask; | |
2585 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2586 | { | |
2587 | bfd_signed_vma mask; | |
2588 | ||
2589 | mask = -1; | |
2590 | mask &= ~howto->src_mask; | |
2591 | addend |= mask; | |
2592 | } | |
2593 | msec = sec; | |
2594 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2595 | addend += msec->output_section->vma + msec->output_offset; | |
2596 | value = (value & ~howto->dst_mask) | (addend & howto->dst_mask); | |
2597 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2598 | break; | |
1c0d3aa6 NC |
2599 | } |
2600 | } | |
2601 | } | |
2602 | else | |
2603 | { | |
c3b7224a NC |
2604 | /* For global symbols we look up the symbol in the hash-table. */ |
2605 | h = ((struct score_elf_link_hash_entry *) | |
2606 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]); | |
8a5da09b AM |
2607 | |
2608 | if (info->wrap_hash != NULL | |
2609 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
2610 | h = ((struct score_elf_link_hash_entry *) | |
2611 | unwrap_hash_lookup (info, input_bfd, &h->root.root)); | |
2612 | ||
c3b7224a NC |
2613 | /* Find the real hash-table entry for this symbol. */ |
2614 | while (h->root.root.type == bfd_link_hash_indirect | |
2615 | || h->root.root.type == bfd_link_hash_warning) | |
2616 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
2617 | ||
2618 | /* Record the name of this symbol, for our caller. */ | |
2619 | name = h->root.root.root.string; | |
2620 | ||
2621 | /* See if this is the special GP_DISP_LABEL symbol. Note that such a | |
2622 | symbol must always be a global symbol. */ | |
2623 | if (strcmp (name, GP_DISP_LABEL) == 0) | |
2624 | { | |
2625 | /* Relocations against GP_DISP_LABEL are permitted only with | |
2626 | R_SCORE_HI16 and R_SCORE_LO16 relocations. */ | |
2627 | if (r_type != R_SCORE_HI16 && r_type != R_SCORE_LO16) | |
2628 | return bfd_reloc_notsupported; | |
2629 | ||
2630 | gp_disp_p = TRUE; | |
2631 | } | |
2632 | ||
2633 | /* If this symbol is defined, calculate its address. Note that | |
2634 | GP_DISP_LABEL is a magic symbol, always implicitly defined by the | |
2635 | linker, so it's inappropriate to check to see whether or not | |
2636 | its defined. */ | |
2637 | else if ((h->root.root.type == bfd_link_hash_defined | |
2638 | || h->root.root.type == bfd_link_hash_defweak) | |
2639 | && h->root.root.u.def.section) | |
2640 | { | |
2641 | sec = h->root.root.u.def.section; | |
2642 | if (sec->output_section) | |
2643 | relocation = (h->root.root.u.def.value | |
2644 | + sec->output_section->vma | |
2645 | + sec->output_offset); | |
2646 | else | |
2647 | { | |
2648 | relocation = h->root.root.u.def.value; | |
2649 | } | |
2650 | } | |
2651 | else if (h->root.root.type == bfd_link_hash_undefweak) | |
2652 | /* We allow relocations against undefined weak symbols, giving | |
2653 | it the value zero, so that you can undefined weak functions | |
2654 | and check to see if they exist by looking at their addresses. */ | |
2655 | relocation = 0; | |
2656 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
2657 | && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT) | |
2658 | relocation = 0; | |
2659 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
2660 | { | |
2661 | /* If this is a dynamic link, we should have created a _DYNAMIC_LINK symbol | |
2662 | in s3_bfd_score_elf_create_dynamic_sections. Otherwise, we should define | |
1c0d3aa6 | 2663 | the symbol with a value of 0. */ |
c3b7224a NC |
2664 | BFD_ASSERT (! info->shared); |
2665 | BFD_ASSERT (bfd_get_section_by_name (output_bfd, ".dynamic") == NULL); | |
2666 | relocation = 0; | |
2667 | } | |
2668 | else if (!info->relocatable) | |
2669 | { | |
2670 | if (! ((*info->callbacks->undefined_symbol) | |
2671 | (info, h->root.root.root.string, input_bfd, | |
2672 | input_section, rel->r_offset, | |
2673 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR) | |
2674 | || ELF_ST_VISIBILITY (h->root.other)))) | |
2675 | return bfd_reloc_undefined; | |
2676 | relocation = 0; | |
2677 | } | |
1c0d3aa6 NC |
2678 | } |
2679 | ||
dbaa2011 | 2680 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2681 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2682 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
2683 | |
2684 | if (info->relocatable) | |
2685 | { | |
2686 | /* This is a relocatable link. We don't have to change | |
2687 | anything, unless the reloc is against a section symbol, | |
2688 | in which case we have to adjust according to where the | |
2689 | section symbol winds up in the output section. */ | |
c3b7224a NC |
2690 | if (r_symndx < symtab_hdr->sh_info) |
2691 | { | |
2692 | sym = local_syms + r_symndx; | |
2693 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2694 | { | |
2695 | sec = local_sections[r_symndx]; | |
2696 | score_elf_add_to_rel (input_bfd, contents + rel->r_offset, | |
2697 | howto, (bfd_signed_vma) (sec->output_offset + sym->st_value)); | |
2698 | } | |
2699 | } | |
ab96bf03 AM |
2700 | continue; |
2701 | } | |
2702 | ||
c3b7224a | 2703 | /* This is a final link. */ |
1c0d3aa6 NC |
2704 | r = score_elf_final_link_relocate (howto, input_bfd, output_bfd, |
2705 | input_section, contents, rel, relocs, | |
9838404f | 2706 | relocation, info, name, |
1c0d3aa6 | 2707 | (h ? ELF_ST_TYPE ((unsigned int)h->root.root.type) : |
c3b7224a | 2708 | ELF_ST_TYPE ((unsigned int)sym->st_info)), h, local_sections, |
1c0d3aa6 NC |
2709 | gp_disp_p); |
2710 | ||
2711 | if (r != bfd_reloc_ok) | |
2712 | { | |
2713 | const char *msg = (const char *)0; | |
2714 | ||
2715 | switch (r) | |
2716 | { | |
2717 | case bfd_reloc_overflow: | |
2718 | /* If the overflowing reloc was to an undefined symbol, | |
2719 | we have already printed one error message and there | |
2720 | is no point complaining again. */ | |
2721 | if (((!h) || (h->root.root.type != bfd_link_hash_undefined)) | |
2722 | && (!((*info->callbacks->reloc_overflow) | |
2723 | (info, NULL, name, howto->name, (bfd_vma) 0, | |
2724 | input_bfd, input_section, rel->r_offset)))) | |
2725 | return FALSE; | |
2726 | break; | |
2727 | case bfd_reloc_undefined: | |
2728 | if (!((*info->callbacks->undefined_symbol) | |
2729 | (info, name, input_bfd, input_section, rel->r_offset, TRUE))) | |
2730 | return FALSE; | |
2731 | break; | |
2732 | ||
2733 | case bfd_reloc_outofrange: | |
2734 | msg = _("internal error: out of range error"); | |
2735 | goto common_error; | |
2736 | ||
2737 | case bfd_reloc_notsupported: | |
2738 | msg = _("internal error: unsupported relocation error"); | |
2739 | goto common_error; | |
2740 | ||
2741 | case bfd_reloc_dangerous: | |
2742 | msg = _("internal error: dangerous error"); | |
2743 | goto common_error; | |
2744 | ||
c3b7224a NC |
2745 | /* Use bfd_reloc_other to check lw48, sw48 word align. */ |
2746 | case bfd_reloc_other: | |
2747 | msg = _("address not word align"); | |
2748 | goto common_error; | |
2749 | ||
1c0d3aa6 NC |
2750 | default: |
2751 | msg = _("internal error: unknown error"); | |
2752 | /* fall through */ | |
2753 | ||
2754 | common_error: | |
2755 | if (!((*info->callbacks->warning) | |
2756 | (info, msg, name, input_bfd, input_section, rel->r_offset))) | |
2757 | return FALSE; | |
2758 | break; | |
2759 | } | |
2760 | } | |
2761 | } | |
2762 | ||
2763 | return TRUE; | |
2764 | } | |
2765 | ||
2766 | /* Look through the relocs for a section during the first phase, and | |
2767 | allocate space in the global offset table. */ | |
1c0d3aa6 | 2768 | static bfd_boolean |
c3b7224a NC |
2769 | s3_bfd_score_elf_check_relocs (bfd *abfd, |
2770 | struct bfd_link_info *info, | |
2771 | asection *sec, | |
2772 | const Elf_Internal_Rela *relocs) | |
1c0d3aa6 NC |
2773 | { |
2774 | const char *name; | |
2775 | bfd *dynobj; | |
2776 | Elf_Internal_Shdr *symtab_hdr; | |
2777 | struct elf_link_hash_entry **sym_hashes; | |
2778 | struct score_got_info *g; | |
2779 | size_t extsymoff; | |
2780 | const Elf_Internal_Rela *rel; | |
2781 | const Elf_Internal_Rela *rel_end; | |
2782 | asection *sgot; | |
2783 | asection *sreloc; | |
2784 | const struct elf_backend_data *bed; | |
2785 | ||
2786 | if (info->relocatable) | |
2787 | return TRUE; | |
2788 | ||
2789 | dynobj = elf_hash_table (info)->dynobj; | |
2790 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2791 | sym_hashes = elf_sym_hashes (abfd); | |
c3b7224a | 2792 | extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
2793 | |
2794 | name = bfd_get_section_name (abfd, sec); | |
2795 | ||
2796 | if (dynobj == NULL) | |
2797 | { | |
2798 | sgot = NULL; | |
2799 | g = NULL; | |
2800 | } | |
2801 | else | |
2802 | { | |
2803 | sgot = score_elf_got_section (dynobj, FALSE); | |
2804 | if (sgot == NULL) | |
2805 | g = NULL; | |
2806 | else | |
2807 | { | |
2808 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
2809 | g = score_elf_section_data (sgot)->u.got_info; | |
2810 | BFD_ASSERT (g != NULL); | |
2811 | } | |
2812 | } | |
2813 | ||
2814 | sreloc = NULL; | |
2815 | bed = get_elf_backend_data (abfd); | |
2816 | rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel; | |
2817 | for (rel = relocs; rel < rel_end; ++rel) | |
2818 | { | |
2819 | unsigned long r_symndx; | |
2820 | unsigned int r_type; | |
2821 | struct elf_link_hash_entry *h; | |
2822 | ||
2823 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2824 | r_type = ELF32_R_TYPE (rel->r_info); | |
2825 | ||
2826 | if (r_symndx < extsymoff) | |
c3b7224a | 2827 | { |
1c0d3aa6 | 2828 | h = NULL; |
c3b7224a | 2829 | } |
1c0d3aa6 NC |
2830 | else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr)) |
2831 | { | |
2832 | (*_bfd_error_handler) (_("%s: Malformed reloc detected for section %s"), abfd, name); | |
2833 | bfd_set_error (bfd_error_bad_value); | |
2834 | return FALSE; | |
2835 | } | |
2836 | else | |
2837 | { | |
2838 | h = sym_hashes[r_symndx - extsymoff]; | |
2839 | ||
2840 | /* This may be an indirect symbol created because of a version. */ | |
2841 | if (h != NULL) | |
2842 | { | |
2843 | while (h->root.type == bfd_link_hash_indirect) | |
2844 | h = (struct elf_link_hash_entry *)h->root.u.i.link; | |
81fbe831 AM |
2845 | |
2846 | /* PR15323, ref flags aren't set for references in the | |
2847 | same object. */ | |
2848 | h->root.non_ir_ref = 1; | |
1c0d3aa6 NC |
2849 | } |
2850 | } | |
2851 | ||
2852 | /* Some relocs require a global offset table. */ | |
2853 | if (dynobj == NULL || sgot == NULL) | |
2854 | { | |
2855 | switch (r_type) | |
2856 | { | |
2857 | case R_SCORE_GOT15: | |
2858 | case R_SCORE_CALL15: | |
2859 | if (dynobj == NULL) | |
2860 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2861 | if (!score_elf_create_got_section (dynobj, info, FALSE)) | |
2862 | return FALSE; | |
2863 | g = score_elf_got_info (dynobj, &sgot); | |
2864 | break; | |
2865 | case R_SCORE_ABS32: | |
2866 | case R_SCORE_REL32: | |
2867 | if (dynobj == NULL && (info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0) | |
2868 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2869 | break; | |
2870 | default: | |
2871 | break; | |
2872 | } | |
2873 | } | |
2874 | ||
2875 | if (!h && (r_type == R_SCORE_GOT_LO16)) | |
2876 | { | |
c3b7224a NC |
2877 | if (! score_elf_record_local_got_symbol (abfd, r_symndx, rel->r_addend, g)) |
2878 | return FALSE; | |
1c0d3aa6 NC |
2879 | } |
2880 | ||
2881 | switch (r_type) | |
2882 | { | |
2883 | case R_SCORE_CALL15: | |
c3b7224a NC |
2884 | if (h == NULL) |
2885 | { | |
2886 | (*_bfd_error_handler) | |
2887 | (_("%B: CALL15 reloc at 0x%lx not against global symbol"), | |
2888 | abfd, (unsigned long) rel->r_offset); | |
2889 | bfd_set_error (bfd_error_bad_value); | |
2890 | return FALSE; | |
2891 | } | |
2892 | else | |
2893 | { | |
2894 | /* This symbol requires a global offset table entry. */ | |
2895 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2896 | return FALSE; | |
2897 | ||
2898 | /* We need a stub, not a plt entry for the undefined function. But we record | |
1c0d3aa6 | 2899 | it as if it needs plt. See _bfd_elf_adjust_dynamic_symbol. */ |
c3b7224a NC |
2900 | h->needs_plt = 1; |
2901 | h->type = STT_FUNC; | |
2902 | } | |
2903 | break; | |
2904 | case R_SCORE_GOT15: | |
2905 | if (h && ! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2906 | return FALSE; | |
1c0d3aa6 | 2907 | break; |
1c0d3aa6 NC |
2908 | case R_SCORE_ABS32: |
2909 | case R_SCORE_REL32: | |
c3b7224a NC |
2910 | if ((info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0) |
2911 | { | |
2912 | if (sreloc == NULL) | |
2913 | { | |
2914 | sreloc = score_elf_rel_dyn_section (dynobj, TRUE); | |
2915 | if (sreloc == NULL) | |
2916 | return FALSE; | |
2917 | } | |
1c0d3aa6 | 2918 | #define SCORE_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY) |
c3b7224a NC |
2919 | if (info->shared) |
2920 | { | |
2921 | /* When creating a shared object, we must copy these reloc types into | |
1c0d3aa6 NC |
2922 | the output file as R_SCORE_REL32 relocs. We make room for this reloc |
2923 | in the .rel.dyn reloc section. */ | |
c3b7224a NC |
2924 | score_elf_allocate_dynamic_relocations (dynobj, 1); |
2925 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2926 | == SCORE_READONLY_SECTION) | |
2927 | /* We tell the dynamic linker that there are | |
2928 | relocations against the text segment. */ | |
2929 | info->flags |= DF_TEXTREL; | |
2930 | } | |
2931 | else | |
2932 | { | |
2933 | struct score_elf_link_hash_entry *hscore; | |
2934 | ||
2935 | /* We only need to copy this reloc if the symbol is | |
1c0d3aa6 | 2936 | defined in a dynamic object. */ |
c3b7224a NC |
2937 | hscore = (struct score_elf_link_hash_entry *)h; |
2938 | ++hscore->possibly_dynamic_relocs; | |
2939 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2940 | == SCORE_READONLY_SECTION) | |
2941 | /* We need it to tell the dynamic linker if there | |
2942 | are relocations against the text segment. */ | |
2943 | hscore->readonly_reloc = TRUE; | |
2944 | } | |
2945 | ||
2946 | /* Even though we don't directly need a GOT entry for this symbol, | |
2947 | a symbol must have a dynamic symbol table index greater that | |
1c0d3aa6 | 2948 | DT_SCORE_GOTSYM if there are dynamic relocations against it. */ |
c3b7224a NC |
2949 | if (h != NULL) |
2950 | { | |
2951 | if (dynobj == NULL) | |
2952 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2953 | if (! score_elf_create_got_section (dynobj, info, TRUE)) | |
2954 | return FALSE; | |
2955 | g = score_elf_got_info (dynobj, &sgot); | |
2956 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2957 | return FALSE; | |
2958 | } | |
2959 | } | |
2960 | break; | |
1c0d3aa6 NC |
2961 | |
2962 | /* This relocation describes the C++ object vtable hierarchy. | |
2963 | Reconstruct it for later use during GC. */ | |
2964 | case R_SCORE_GNU_VTINHERIT: | |
2965 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2966 | return FALSE; | |
2967 | break; | |
2968 | ||
2969 | /* This relocation describes which C++ vtable entries are actually | |
2970 | used. Record for later use during GC. */ | |
2971 | case R_SCORE_GNU_VTENTRY: | |
c3b7224a | 2972 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
1c0d3aa6 NC |
2973 | return FALSE; |
2974 | break; | |
2975 | default: | |
2976 | break; | |
2977 | } | |
2978 | ||
2979 | /* We must not create a stub for a symbol that has relocations | |
2980 | related to taking the function's address. */ | |
2981 | switch (r_type) | |
c3b7224a NC |
2982 | { |
2983 | default: | |
2984 | if (h != NULL) | |
2985 | { | |
2986 | struct score_elf_link_hash_entry *sh; | |
1c0d3aa6 | 2987 | |
c3b7224a NC |
2988 | sh = (struct score_elf_link_hash_entry *) h; |
2989 | sh->no_fn_stub = TRUE; | |
2990 | } | |
2991 | break; | |
2992 | case R_SCORE_CALL15: | |
2993 | break; | |
2994 | } | |
1c0d3aa6 NC |
2995 | } |
2996 | ||
2997 | return TRUE; | |
2998 | } | |
2999 | ||
3000 | static bfd_boolean | |
c3b7224a NC |
3001 | s3_bfd_score_elf_add_symbol_hook (bfd *abfd, |
3002 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3003 | Elf_Internal_Sym *sym, | |
3004 | const char **namep ATTRIBUTE_UNUSED, | |
3005 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3006 | asection **secp, | |
3007 | bfd_vma *valp) | |
1c0d3aa6 NC |
3008 | { |
3009 | switch (sym->st_shndx) | |
3010 | { | |
3011 | case SHN_COMMON: | |
3012 | if (sym->st_size > elf_gp_size (abfd)) | |
3013 | break; | |
3014 | /* Fall through. */ | |
3015 | case SHN_SCORE_SCOMMON: | |
3016 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
3017 | (*secp)->flags |= SEC_IS_COMMON; | |
3018 | *valp = sym->st_size; | |
3019 | break; | |
3020 | } | |
3021 | ||
3022 | return TRUE; | |
3023 | } | |
3024 | ||
3025 | static void | |
c3b7224a | 3026 | s3_bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym) |
1c0d3aa6 NC |
3027 | { |
3028 | elf_symbol_type *elfsym; | |
3029 | ||
3030 | elfsym = (elf_symbol_type *) asym; | |
3031 | switch (elfsym->internal_elf_sym.st_shndx) | |
3032 | { | |
3033 | case SHN_COMMON: | |
3034 | if (asym->value > elf_gp_size (abfd)) | |
3035 | break; | |
3036 | /* Fall through. */ | |
3037 | case SHN_SCORE_SCOMMON: | |
3038 | if (score_elf_scom_section.name == NULL) | |
3039 | { | |
3040 | /* Initialize the small common section. */ | |
3041 | score_elf_scom_section.name = ".scommon"; | |
3042 | score_elf_scom_section.flags = SEC_IS_COMMON; | |
3043 | score_elf_scom_section.output_section = &score_elf_scom_section; | |
3044 | score_elf_scom_section.symbol = &score_elf_scom_symbol; | |
3045 | score_elf_scom_section.symbol_ptr_ptr = &score_elf_scom_symbol_ptr; | |
3046 | score_elf_scom_symbol.name = ".scommon"; | |
3047 | score_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
3048 | score_elf_scom_symbol.section = &score_elf_scom_section; | |
3049 | score_elf_scom_symbol_ptr = &score_elf_scom_symbol; | |
3050 | } | |
3051 | asym->section = &score_elf_scom_section; | |
3052 | asym->value = elfsym->internal_elf_sym.st_size; | |
3053 | break; | |
3054 | } | |
3055 | } | |
3056 | ||
6e0b88f1 | 3057 | static int |
c3b7224a NC |
3058 | s3_bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
3059 | const char *name ATTRIBUTE_UNUSED, | |
3060 | Elf_Internal_Sym *sym, | |
3061 | asection *input_sec, | |
3062 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
3063 | { |
3064 | /* If we see a common symbol, which implies a relocatable link, then | |
3065 | if a symbol was small common in an input file, mark it as small | |
3066 | common in the output file. */ | |
3067 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
3068 | sym->st_shndx = SHN_SCORE_SCOMMON; | |
3069 | ||
6e0b88f1 | 3070 | return 1; |
1c0d3aa6 NC |
3071 | } |
3072 | ||
3073 | static bfd_boolean | |
c3b7224a NC |
3074 | s3_bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, |
3075 | asection *sec, | |
3076 | int *retval) | |
1c0d3aa6 NC |
3077 | { |
3078 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
3079 | { | |
3080 | *retval = SHN_SCORE_SCOMMON; | |
3081 | return TRUE; | |
3082 | } | |
3083 | ||
3084 | return FALSE; | |
3085 | } | |
3086 | ||
3087 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
3088 | regular object. The current definition is in some section of the | |
3089 | dynamic object, but we're not including those sections. We have to | |
3090 | change the definition to something the rest of the link can understand. */ | |
1c0d3aa6 | 3091 | static bfd_boolean |
c3b7224a NC |
3092 | s3_bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
3093 | struct elf_link_hash_entry *h) | |
1c0d3aa6 NC |
3094 | { |
3095 | bfd *dynobj; | |
3096 | struct score_elf_link_hash_entry *hscore; | |
3097 | asection *s; | |
3098 | ||
3099 | dynobj = elf_hash_table (info)->dynobj; | |
3100 | ||
3101 | /* Make sure we know what is going on here. */ | |
3102 | BFD_ASSERT (dynobj != NULL | |
3103 | && (h->needs_plt | |
3104 | || h->u.weakdef != NULL | |
3105 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
3106 | ||
3107 | /* If this symbol is defined in a dynamic object, we need to copy | |
3108 | any R_SCORE_ABS32 or R_SCORE_REL32 relocs against it into the output | |
3109 | file. */ | |
3110 | hscore = (struct score_elf_link_hash_entry *)h; | |
3111 | if (!info->relocatable | |
3112 | && hscore->possibly_dynamic_relocs != 0 | |
3113 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)) | |
3114 | { | |
3115 | score_elf_allocate_dynamic_relocations (dynobj, hscore->possibly_dynamic_relocs); | |
3116 | if (hscore->readonly_reloc) | |
3117 | /* We tell the dynamic linker that there are relocations | |
3118 | against the text segment. */ | |
3119 | info->flags |= DF_TEXTREL; | |
3120 | } | |
3121 | ||
3122 | /* For a function, create a stub, if allowed. */ | |
3123 | if (!hscore->no_fn_stub && h->needs_plt) | |
3124 | { | |
3125 | if (!elf_hash_table (info)->dynamic_sections_created) | |
3126 | return TRUE; | |
3127 | ||
3128 | /* If this symbol is not defined in a regular file, then set | |
3129 | the symbol to the stub location. This is required to make | |
3130 | function pointers compare as equal between the normal | |
3131 | executable and the shared library. */ | |
3132 | if (!h->def_regular) | |
3133 | { | |
3134 | /* We need .stub section. */ | |
3d4d4302 | 3135 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); |
1c0d3aa6 NC |
3136 | BFD_ASSERT (s != NULL); |
3137 | ||
3138 | h->root.u.def.section = s; | |
3139 | h->root.u.def.value = s->size; | |
3140 | ||
3141 | /* XXX Write this stub address somewhere. */ | |
3142 | h->plt.offset = s->size; | |
3143 | ||
3144 | /* Make room for this stub code. */ | |
3145 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
3146 | ||
3147 | /* The last half word of the stub will be filled with the index | |
3148 | of this symbol in .dynsym section. */ | |
3149 | return TRUE; | |
3150 | } | |
3151 | } | |
3152 | else if ((h->type == STT_FUNC) && !h->needs_plt) | |
3153 | { | |
3154 | /* This will set the entry for this symbol in the GOT to 0, and | |
3155 | the dynamic linker will take care of this. */ | |
3156 | h->root.u.def.value = 0; | |
3157 | return TRUE; | |
3158 | } | |
3159 | ||
3160 | /* If this is a weak symbol, and there is a real definition, the | |
3161 | processor independent code will have arranged for us to see the | |
3162 | real definition first, and we can just use the same value. */ | |
3163 | if (h->u.weakdef != NULL) | |
3164 | { | |
3165 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
3166 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
3167 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
3168 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
3169 | return TRUE; | |
3170 | } | |
3171 | ||
3172 | /* This is a reference to a symbol defined by a dynamic object which | |
3173 | is not a function. */ | |
3174 | return TRUE; | |
3175 | } | |
3176 | ||
3177 | /* This function is called after all the input files have been read, | |
3178 | and the input sections have been assigned to output sections. */ | |
1c0d3aa6 | 3179 | static bfd_boolean |
c3b7224a NC |
3180 | s3_bfd_score_elf_always_size_sections (bfd *output_bfd, |
3181 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3182 | { |
3183 | bfd *dynobj; | |
3184 | asection *s; | |
3185 | struct score_got_info *g; | |
3186 | int i; | |
3187 | bfd_size_type loadable_size = 0; | |
3188 | bfd_size_type local_gotno; | |
3189 | bfd *sub; | |
3190 | ||
3191 | dynobj = elf_hash_table (info)->dynobj; | |
3192 | if (dynobj == NULL) | |
3193 | /* Relocatable links don't have it. */ | |
3194 | return TRUE; | |
3195 | ||
3196 | g = score_elf_got_info (dynobj, &s); | |
3197 | if (s == NULL) | |
3198 | return TRUE; | |
3199 | ||
3200 | /* Calculate the total loadable size of the output. That will give us the | |
3201 | maximum number of GOT_PAGE entries required. */ | |
c72f2fb2 | 3202 | for (sub = info->input_bfds; sub; sub = sub->link.next) |
1c0d3aa6 NC |
3203 | { |
3204 | asection *subsection; | |
3205 | ||
3206 | for (subsection = sub->sections; | |
c3b7224a NC |
3207 | subsection; |
3208 | subsection = subsection->next) | |
3209 | { | |
3210 | if ((subsection->flags & SEC_ALLOC) == 0) | |
3211 | continue; | |
3212 | loadable_size += ((subsection->size + 0xf) | |
3213 | &~ (bfd_size_type) 0xf); | |
3214 | } | |
1c0d3aa6 NC |
3215 | } |
3216 | ||
3217 | /* There has to be a global GOT entry for every symbol with | |
3218 | a dynamic symbol table index of DT_SCORE_GOTSYM or | |
3219 | higher. Therefore, it make sense to put those symbols | |
3220 | that need GOT entries at the end of the symbol table. We | |
3221 | do that here. */ | |
3222 | if (! score_elf_sort_hash_table (info, 1)) | |
3223 | return FALSE; | |
3224 | ||
3225 | if (g->global_gotsym != NULL) | |
3226 | i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx; | |
3227 | else | |
3228 | /* If there are no global symbols, or none requiring | |
3229 | relocations, then GLOBAL_GOTSYM will be NULL. */ | |
3230 | i = 0; | |
3231 | ||
3232 | /* In the worst case, we'll get one stub per dynamic symbol. */ | |
3233 | loadable_size += SCORE_FUNCTION_STUB_SIZE * i; | |
3234 | ||
3235 | /* Assume there are two loadable segments consisting of | |
3236 | contiguous sections. Is 5 enough? */ | |
3237 | local_gotno = (loadable_size >> 16) + 5; | |
3238 | ||
3239 | g->local_gotno += local_gotno; | |
3240 | s->size += g->local_gotno * SCORE_ELF_GOT_SIZE (output_bfd); | |
3241 | ||
3242 | g->global_gotno = i; | |
3243 | s->size += i * SCORE_ELF_GOT_SIZE (output_bfd); | |
3244 | ||
3245 | score_elf_resolve_final_got_entries (g); | |
3246 | ||
3247 | if (s->size > SCORE_ELF_GOT_MAX_SIZE (output_bfd)) | |
3248 | { | |
3249 | /* Fixme. Error message or Warning message should be issued here. */ | |
3250 | } | |
3251 | ||
3252 | return TRUE; | |
3253 | } | |
3254 | ||
3255 | /* Set the sizes of the dynamic sections. */ | |
1c0d3aa6 | 3256 | static bfd_boolean |
c3b7224a | 3257 | s3_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
1c0d3aa6 NC |
3258 | { |
3259 | bfd *dynobj; | |
3260 | asection *s; | |
3261 | bfd_boolean reltext; | |
3262 | ||
3263 | dynobj = elf_hash_table (info)->dynobj; | |
3264 | BFD_ASSERT (dynobj != NULL); | |
3265 | ||
3266 | if (elf_hash_table (info)->dynamic_sections_created) | |
3267 | { | |
3268 | /* Set the contents of the .interp section to the interpreter. */ | |
3269 | if (!info->shared) | |
3270 | { | |
3d4d4302 | 3271 | s = bfd_get_linker_section (dynobj, ".interp"); |
1c0d3aa6 NC |
3272 | BFD_ASSERT (s != NULL); |
3273 | s->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1; | |
3274 | s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER; | |
3275 | } | |
3276 | } | |
3277 | ||
3278 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3279 | determined the sizes of the various dynamic sections. Allocate | |
3280 | memory for them. */ | |
3281 | reltext = FALSE; | |
3282 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3283 | { | |
3284 | const char *name; | |
3285 | ||
3286 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3287 | continue; | |
3288 | ||
3289 | /* It's OK to base decisions on the section name, because none | |
3290 | of the dynobj section names depend upon the input files. */ | |
3291 | name = bfd_get_section_name (dynobj, s); | |
3292 | ||
3293 | if (CONST_STRNEQ (name, ".rel")) | |
3294 | { | |
3295 | if (s->size == 0) | |
3296 | { | |
3297 | /* We only strip the section if the output section name | |
3298 | has the same name. Otherwise, there might be several | |
3299 | input sections for this output section. FIXME: This | |
3300 | code is probably not needed these days anyhow, since | |
3301 | the linker now does not create empty output sections. */ | |
3302 | if (s->output_section != NULL | |
3303 | && strcmp (name, | |
3304 | bfd_get_section_name (s->output_section->owner, | |
3305 | s->output_section)) == 0) | |
3306 | s->flags |= SEC_EXCLUDE; | |
3307 | } | |
3308 | else | |
3309 | { | |
3310 | const char *outname; | |
3311 | asection *target; | |
3312 | ||
3313 | /* If this relocation section applies to a read only | |
3314 | section, then we probably need a DT_TEXTREL entry. | |
3315 | If the relocation section is .rel.dyn, we always | |
3316 | assert a DT_TEXTREL entry rather than testing whether | |
3317 | there exists a relocation to a read only section or | |
3318 | not. */ | |
3319 | outname = bfd_get_section_name (output_bfd, s->output_section); | |
3320 | target = bfd_get_section_by_name (output_bfd, outname + 4); | |
3321 | if ((target != NULL | |
3322 | && (target->flags & SEC_READONLY) != 0 | |
3323 | && (target->flags & SEC_ALLOC) != 0) || strcmp (outname, ".rel.dyn") == 0) | |
3324 | reltext = TRUE; | |
3325 | ||
3326 | /* We use the reloc_count field as a counter if we need | |
3327 | to copy relocs into the output file. */ | |
3328 | if (strcmp (name, ".rel.dyn") != 0) | |
3329 | s->reloc_count = 0; | |
3330 | } | |
3331 | } | |
3332 | else if (CONST_STRNEQ (name, ".got")) | |
3333 | { | |
c3b7224a NC |
3334 | /* s3_bfd_score_elf_always_size_sections() has already done |
3335 | most of the work, but some symbols may have been mapped | |
3336 | to versions that we must now resolve in the got_entries | |
3337 | hash tables. */ | |
1c0d3aa6 NC |
3338 | } |
3339 | else if (strcmp (name, SCORE_ELF_STUB_SECTION_NAME) == 0) | |
3340 | { | |
3341 | /* IRIX rld assumes that the function stub isn't at the end | |
3342 | of .text section. So put a dummy. XXX */ | |
3343 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
3344 | } | |
3345 | else if (! CONST_STRNEQ (name, ".init")) | |
3346 | { | |
3347 | /* It's not one of our sections, so don't allocate space. */ | |
3348 | continue; | |
3349 | } | |
3350 | ||
3351 | /* Allocate memory for the section contents. */ | |
3352 | s->contents = bfd_zalloc (dynobj, s->size); | |
3353 | if (s->contents == NULL && s->size != 0) | |
3354 | { | |
3355 | bfd_set_error (bfd_error_no_memory); | |
3356 | return FALSE; | |
3357 | } | |
3358 | } | |
3359 | ||
3360 | if (elf_hash_table (info)->dynamic_sections_created) | |
3361 | { | |
3362 | /* Add some entries to the .dynamic section. We fill in the | |
c3b7224a NC |
3363 | values later, in s3_bfd_score_elf_finish_dynamic_sections, but we |
3364 | must add the entries now so that we get the correct size for | |
3365 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3366 | dynamic linker and used by the debugger. */ | |
1c0d3aa6 NC |
3367 | |
3368 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0)) | |
c3b7224a | 3369 | return FALSE; |
1c0d3aa6 NC |
3370 | |
3371 | if (reltext) | |
c3b7224a | 3372 | info->flags |= DF_TEXTREL; |
1c0d3aa6 NC |
3373 | |
3374 | if ((info->flags & DF_TEXTREL) != 0) | |
c3b7224a NC |
3375 | { |
3376 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0)) | |
3377 | return FALSE; | |
3378 | } | |
1c0d3aa6 NC |
3379 | |
3380 | if (! SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0)) | |
c3b7224a | 3381 | return FALSE; |
1c0d3aa6 NC |
3382 | |
3383 | if (score_elf_rel_dyn_section (dynobj, FALSE)) | |
c3b7224a NC |
3384 | { |
3385 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0)) | |
3386 | return FALSE; | |
1c0d3aa6 | 3387 | |
c3b7224a NC |
3388 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0)) |
3389 | return FALSE; | |
1c0d3aa6 | 3390 | |
c3b7224a NC |
3391 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0)) |
3392 | return FALSE; | |
3393 | } | |
1c0d3aa6 NC |
3394 | |
3395 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_BASE_ADDRESS, 0)) | |
3396 | return FALSE; | |
3397 | ||
3398 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_LOCAL_GOTNO, 0)) | |
3399 | return FALSE; | |
3400 | ||
3401 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_SYMTABNO, 0)) | |
3402 | return FALSE; | |
3403 | ||
3404 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_UNREFEXTNO, 0)) | |
3405 | return FALSE; | |
3406 | ||
3407 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_GOTSYM, 0)) | |
3408 | return FALSE; | |
3409 | ||
3410 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_HIPAGENO, 0)) | |
c3b7224a | 3411 | return FALSE; |
1c0d3aa6 NC |
3412 | } |
3413 | ||
3414 | return TRUE; | |
3415 | } | |
3416 | ||
3417 | static bfd_boolean | |
c3b7224a | 3418 | s3_bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
1c0d3aa6 NC |
3419 | { |
3420 | struct elf_link_hash_entry *h; | |
3421 | struct bfd_link_hash_entry *bh; | |
3422 | flagword flags; | |
3423 | asection *s; | |
3424 | ||
3425 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3426 | | SEC_LINKER_CREATED | SEC_READONLY); | |
3427 | ||
3428 | /* ABI requests the .dynamic section to be read only. */ | |
3d4d4302 | 3429 | s = bfd_get_linker_section (abfd, ".dynamic"); |
1c0d3aa6 NC |
3430 | if (s != NULL) |
3431 | { | |
3432 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3433 | return FALSE; | |
3434 | } | |
3435 | ||
3436 | /* We need to create .got section. */ | |
3437 | if (!score_elf_create_got_section (abfd, info, FALSE)) | |
3438 | return FALSE; | |
3439 | ||
3440 | if (!score_elf_rel_dyn_section (elf_hash_table (info)->dynobj, TRUE)) | |
3441 | return FALSE; | |
3442 | ||
3443 | /* Create .stub section. */ | |
3d4d4302 | 3444 | if (bfd_get_linker_section (abfd, SCORE_ELF_STUB_SECTION_NAME) == NULL) |
1c0d3aa6 | 3445 | { |
3d4d4302 AM |
3446 | s = bfd_make_section_anyway_with_flags (abfd, SCORE_ELF_STUB_SECTION_NAME, |
3447 | flags | SEC_CODE); | |
1c0d3aa6 | 3448 | if (s == NULL |
1c0d3aa6 NC |
3449 | || !bfd_set_section_alignment (abfd, s, 2)) |
3450 | ||
3451 | return FALSE; | |
3452 | } | |
3453 | ||
3454 | if (!info->shared) | |
3455 | { | |
3456 | const char *name; | |
3457 | ||
3458 | name = "_DYNAMIC_LINK"; | |
3459 | bh = NULL; | |
3460 | if (!(_bfd_generic_link_add_one_symbol | |
3461 | (info, abfd, name, BSF_GLOBAL, bfd_abs_section_ptr, | |
c3b7224a | 3462 | (bfd_vma) 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh))) |
1c0d3aa6 NC |
3463 | return FALSE; |
3464 | ||
3465 | h = (struct elf_link_hash_entry *)bh; | |
3466 | h->non_elf = 0; | |
3467 | h->def_regular = 1; | |
3468 | h->type = STT_SECTION; | |
3469 | ||
3470 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
3471 | return FALSE; | |
3472 | } | |
3473 | ||
3474 | return TRUE; | |
3475 | } | |
3476 | ||
3477 | ||
3478 | /* Finish up dynamic symbol handling. We set the contents of various | |
3479 | dynamic sections here. */ | |
1c0d3aa6 | 3480 | static bfd_boolean |
c3b7224a NC |
3481 | s3_bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd, |
3482 | struct bfd_link_info *info, | |
3483 | struct elf_link_hash_entry *h, | |
3484 | Elf_Internal_Sym *sym) | |
1c0d3aa6 NC |
3485 | { |
3486 | bfd *dynobj; | |
3487 | asection *sgot; | |
3488 | struct score_got_info *g; | |
3489 | const char *name; | |
3490 | ||
3491 | dynobj = elf_hash_table (info)->dynobj; | |
3492 | ||
3493 | if (h->plt.offset != MINUS_ONE) | |
3494 | { | |
3495 | asection *s; | |
3496 | bfd_byte stub[SCORE_FUNCTION_STUB_SIZE]; | |
3497 | ||
3498 | /* This symbol has a stub. Set it up. */ | |
3499 | BFD_ASSERT (h->dynindx != -1); | |
3500 | ||
3d4d4302 | 3501 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); |
1c0d3aa6 NC |
3502 | BFD_ASSERT (s != NULL); |
3503 | ||
3504 | /* FIXME: Can h->dynindex be more than 64K? */ | |
3505 | if (h->dynindx & 0xffff0000) | |
c3b7224a | 3506 | return FALSE; |
1c0d3aa6 NC |
3507 | |
3508 | /* Fill the stub. */ | |
c3b7224a NC |
3509 | score_bfd_put_32 (output_bfd, STUB_LW, stub); |
3510 | score_bfd_put_32 (output_bfd, STUB_MOVE, stub + 4); | |
3511 | score_bfd_put_32 (output_bfd, STUB_LI16 | (h->dynindx << 1), stub + 8); | |
3512 | score_bfd_put_32 (output_bfd, STUB_BRL, stub + 12); | |
1c0d3aa6 NC |
3513 | |
3514 | BFD_ASSERT (h->plt.offset <= s->size); | |
3515 | memcpy (s->contents + h->plt.offset, stub, SCORE_FUNCTION_STUB_SIZE); | |
3516 | ||
3517 | /* Mark the symbol as undefined. plt.offset != -1 occurs | |
c3b7224a | 3518 | only for the referenced symbol. */ |
1c0d3aa6 NC |
3519 | sym->st_shndx = SHN_UNDEF; |
3520 | ||
3521 | /* The run-time linker uses the st_value field of the symbol | |
c3b7224a NC |
3522 | to reset the global offset table entry for this external |
3523 | to its stub address when unlinking a shared object. */ | |
1c0d3aa6 NC |
3524 | sym->st_value = (s->output_section->vma + s->output_offset + h->plt.offset); |
3525 | } | |
3526 | ||
3527 | BFD_ASSERT (h->dynindx != -1 || h->forced_local); | |
3528 | ||
3529 | sgot = score_elf_got_section (dynobj, FALSE); | |
3530 | BFD_ASSERT (sgot != NULL); | |
3531 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3532 | g = score_elf_section_data (sgot)->u.got_info; | |
3533 | BFD_ASSERT (g != NULL); | |
3534 | ||
3535 | /* Run through the global symbol table, creating GOT entries for all | |
3536 | the symbols that need them. */ | |
3537 | if (g->global_gotsym != NULL && h->dynindx >= g->global_gotsym->dynindx) | |
3538 | { | |
3539 | bfd_vma offset; | |
3540 | bfd_vma value; | |
3541 | ||
3542 | value = sym->st_value; | |
3543 | offset = score_elf_global_got_index (dynobj, h); | |
c3b7224a | 3544 | score_bfd_put_32 (output_bfd, value, sgot->contents + offset); |
1c0d3aa6 NC |
3545 | } |
3546 | ||
3547 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3548 | name = h->root.root.string; | |
9637f6ef L |
3549 | if (h == elf_hash_table (info)->hdynamic |
3550 | || h == elf_hash_table (info)->hgot) | |
1c0d3aa6 NC |
3551 | sym->st_shndx = SHN_ABS; |
3552 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
3553 | { | |
3554 | sym->st_shndx = SHN_ABS; | |
3555 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3556 | sym->st_value = 1; | |
3557 | } | |
3558 | else if (strcmp (name, GP_DISP_LABEL) == 0) | |
3559 | { | |
3560 | sym->st_shndx = SHN_ABS; | |
3561 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3562 | sym->st_value = elf_gp (output_bfd); | |
3563 | } | |
3564 | ||
3565 | return TRUE; | |
3566 | } | |
3567 | ||
3568 | /* Finish up the dynamic sections. */ | |
1c0d3aa6 | 3569 | static bfd_boolean |
c3b7224a NC |
3570 | s3_bfd_score_elf_finish_dynamic_sections (bfd *output_bfd, |
3571 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3572 | { |
3573 | bfd *dynobj; | |
3574 | asection *sdyn; | |
3575 | asection *sgot; | |
3576 | asection *s; | |
3577 | struct score_got_info *g; | |
3578 | ||
3579 | dynobj = elf_hash_table (info)->dynobj; | |
3580 | ||
3d4d4302 | 3581 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
1c0d3aa6 NC |
3582 | |
3583 | sgot = score_elf_got_section (dynobj, FALSE); | |
3584 | if (sgot == NULL) | |
3585 | g = NULL; | |
3586 | else | |
3587 | { | |
3588 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3589 | g = score_elf_section_data (sgot)->u.got_info; | |
3590 | BFD_ASSERT (g != NULL); | |
3591 | } | |
3592 | ||
3593 | if (elf_hash_table (info)->dynamic_sections_created) | |
3594 | { | |
3595 | bfd_byte *b; | |
3596 | ||
3597 | BFD_ASSERT (sdyn != NULL); | |
3598 | BFD_ASSERT (g != NULL); | |
3599 | ||
3600 | for (b = sdyn->contents; | |
c3b7224a NC |
3601 | b < sdyn->contents + sdyn->size; |
3602 | b += SCORE_ELF_DYN_SIZE (dynobj)) | |
3603 | { | |
3604 | Elf_Internal_Dyn dyn; | |
3605 | const char *name; | |
3606 | size_t elemsize; | |
3607 | bfd_boolean swap_out_p; | |
3608 | ||
3609 | /* Read in the current dynamic entry. */ | |
3610 | (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn); | |
3611 | ||
3612 | /* Assume that we're going to modify it and write it out. */ | |
3613 | swap_out_p = TRUE; | |
3614 | ||
3615 | switch (dyn.d_tag) | |
3616 | { | |
3617 | case DT_RELENT: | |
3618 | s = score_elf_rel_dyn_section (dynobj, FALSE); | |
3619 | BFD_ASSERT (s != NULL); | |
3620 | dyn.d_un.d_val = SCORE_ELF_REL_SIZE (dynobj); | |
3621 | break; | |
3622 | ||
3623 | case DT_STRSZ: | |
3624 | /* Rewrite DT_STRSZ. */ | |
3625 | dyn.d_un.d_val = _bfd_elf_strtab_size (elf_hash_table (info)->dynstr); | |
3626 | break; | |
3627 | ||
3628 | case DT_PLTGOT: | |
3629 | name = ".got"; | |
3630 | s = bfd_get_section_by_name (output_bfd, name); | |
3631 | BFD_ASSERT (s != NULL); | |
3632 | dyn.d_un.d_ptr = s->vma; | |
3633 | break; | |
3634 | ||
3635 | case DT_SCORE_BASE_ADDRESS: | |
3636 | s = output_bfd->sections; | |
3637 | BFD_ASSERT (s != NULL); | |
3638 | dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff; | |
3639 | break; | |
3640 | ||
3641 | case DT_SCORE_LOCAL_GOTNO: | |
3642 | dyn.d_un.d_val = g->local_gotno; | |
3643 | break; | |
3644 | ||
3645 | case DT_SCORE_UNREFEXTNO: | |
3646 | /* The index into the dynamic symbol table which is the | |
3647 | entry of the first external symbol that is not | |
3648 | referenced within the same object. */ | |
3649 | dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1; | |
3650 | break; | |
3651 | ||
3652 | case DT_SCORE_GOTSYM: | |
3653 | if (g->global_gotsym) | |
3654 | { | |
3655 | dyn.d_un.d_val = g->global_gotsym->dynindx; | |
3656 | break; | |
3657 | } | |
3658 | /* In case if we don't have global got symbols we default | |
3659 | to setting DT_SCORE_GOTSYM to the same value as | |
3660 | DT_SCORE_SYMTABNO, so we just fall through. */ | |
3661 | ||
3662 | case DT_SCORE_SYMTABNO: | |
3663 | name = ".dynsym"; | |
3664 | elemsize = SCORE_ELF_SYM_SIZE (output_bfd); | |
3665 | s = bfd_get_section_by_name (output_bfd, name); | |
3666 | BFD_ASSERT (s != NULL); | |
3667 | ||
3668 | dyn.d_un.d_val = s->size / elemsize; | |
3669 | break; | |
3670 | ||
3671 | case DT_SCORE_HIPAGENO: | |
3672 | dyn.d_un.d_val = g->local_gotno - SCORE_RESERVED_GOTNO; | |
3673 | break; | |
3674 | ||
3675 | default: | |
3676 | swap_out_p = FALSE; | |
3677 | break; | |
3678 | } | |
3679 | ||
3680 | if (swap_out_p) | |
3681 | (*get_elf_backend_data (dynobj)->s->swap_dyn_out) (dynobj, &dyn, b); | |
3682 | } | |
1c0d3aa6 NC |
3683 | } |
3684 | ||
3685 | /* The first entry of the global offset table will be filled at | |
3686 | runtime. The second entry will be used by some runtime loaders. | |
3687 | This isn't the case of IRIX rld. */ | |
3688 | if (sgot != NULL && sgot->size > 0) | |
3689 | { | |
c3b7224a NC |
3690 | score_bfd_put_32 (output_bfd, 0, sgot->contents); |
3691 | score_bfd_put_32 (output_bfd, 0x80000000, sgot->contents + SCORE_ELF_GOT_SIZE (output_bfd)); | |
1c0d3aa6 NC |
3692 | } |
3693 | ||
3694 | if (sgot != NULL) | |
3695 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize | |
3696 | = SCORE_ELF_GOT_SIZE (output_bfd); | |
3697 | ||
3698 | ||
3699 | /* We need to sort the entries of the dynamic relocation section. */ | |
3700 | s = score_elf_rel_dyn_section (dynobj, FALSE); | |
3701 | ||
3702 | if (s != NULL && s->size > (bfd_vma)2 * SCORE_ELF_REL_SIZE (output_bfd)) | |
3703 | { | |
3704 | reldyn_sorting_bfd = output_bfd; | |
3705 | qsort ((Elf32_External_Rel *) s->contents + 1, s->reloc_count - 1, | |
c3b7224a | 3706 | sizeof (Elf32_External_Rel), score_elf_sort_dynamic_relocs); |
1c0d3aa6 NC |
3707 | } |
3708 | ||
3709 | return TRUE; | |
3710 | } | |
3711 | ||
3712 | /* This function set up the ELF section header for a BFD section in preparation for writing | |
3713 | it out. This is where the flags and type fields are set for unusual sections. */ | |
1c0d3aa6 | 3714 | static bfd_boolean |
c3b7224a NC |
3715 | s3_bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
3716 | Elf_Internal_Shdr *hdr, | |
3717 | asection *sec) | |
1c0d3aa6 NC |
3718 | { |
3719 | const char *name; | |
3720 | ||
3721 | name = bfd_get_section_name (abfd, sec); | |
3722 | ||
3723 | if (strcmp (name, ".got") == 0 | |
3724 | || strcmp (name, ".srdata") == 0 | |
3725 | || strcmp (name, ".sdata") == 0 | |
3726 | || strcmp (name, ".sbss") == 0) | |
3727 | hdr->sh_flags |= SHF_SCORE_GPREL; | |
3728 | ||
3729 | return TRUE; | |
3730 | } | |
3731 | ||
3732 | /* This function do additional processing on the ELF section header before writing | |
3733 | it out. This is used to set the flags and type fields for some sections. */ | |
3734 | ||
3735 | /* assign_file_positions_except_relocs() check section flag and if it is allocatable, | |
3736 | warning message will be issued. backend_fake_section is called before | |
3737 | assign_file_positions_except_relocs(); backend_section_processing after it. so, we | |
3738 | modify section flag there, but not backend_fake_section. */ | |
1c0d3aa6 | 3739 | static bfd_boolean |
c3b7224a | 3740 | s3_bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr) |
1c0d3aa6 NC |
3741 | { |
3742 | if (hdr->bfd_section != NULL) | |
3743 | { | |
3744 | const char *name = bfd_get_section_name (abfd, hdr->bfd_section); | |
3745 | ||
3746 | if (strcmp (name, ".sdata") == 0) | |
c3b7224a NC |
3747 | { |
3748 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3749 | hdr->sh_type = SHT_PROGBITS; | |
3750 | } | |
1c0d3aa6 | 3751 | else if (strcmp (name, ".sbss") == 0) |
c3b7224a NC |
3752 | { |
3753 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3754 | hdr->sh_type = SHT_NOBITS; | |
3755 | } | |
1c0d3aa6 | 3756 | else if (strcmp (name, ".srdata") == 0) |
c3b7224a NC |
3757 | { |
3758 | hdr->sh_flags |= SHF_ALLOC | SHF_SCORE_GPREL; | |
3759 | hdr->sh_type = SHT_PROGBITS; | |
3760 | } | |
1c0d3aa6 NC |
3761 | } |
3762 | ||
3763 | return TRUE; | |
3764 | } | |
3765 | ||
3766 | static bfd_boolean | |
c3b7224a | 3767 | s3_bfd_score_elf_write_section (bfd *output_bfd, asection *sec, bfd_byte *contents) |
1c0d3aa6 NC |
3768 | { |
3769 | bfd_byte *to, *from, *end; | |
3770 | int i; | |
3771 | ||
3772 | if (strcmp (sec->name, ".pdr") != 0) | |
3773 | return FALSE; | |
3774 | ||
3775 | if (score_elf_section_data (sec)->u.tdata == NULL) | |
3776 | return FALSE; | |
3777 | ||
3778 | to = contents; | |
3779 | end = contents + sec->size; | |
3780 | for (from = contents, i = 0; from < end; from += PDR_SIZE, i++) | |
3781 | { | |
3782 | if ((score_elf_section_data (sec)->u.tdata)[i] == 1) | |
3783 | continue; | |
3784 | ||
3785 | if (to != from) | |
3786 | memcpy (to, from, PDR_SIZE); | |
3787 | ||
3788 | to += PDR_SIZE; | |
3789 | } | |
3790 | bfd_set_section_contents (output_bfd, sec->output_section, contents, | |
3791 | (file_ptr) sec->output_offset, sec->size); | |
3792 | ||
3793 | return TRUE; | |
3794 | } | |
3795 | ||
3796 | /* Copy data from a SCORE ELF indirect symbol to its direct symbol, hiding the old | |
3797 | indirect symbol. Process additional relocation information. */ | |
1c0d3aa6 | 3798 | static void |
c3b7224a NC |
3799 | s3_bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info, |
3800 | struct elf_link_hash_entry *dir, | |
3801 | struct elf_link_hash_entry *ind) | |
1c0d3aa6 NC |
3802 | { |
3803 | struct score_elf_link_hash_entry *dirscore, *indscore; | |
3804 | ||
3805 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
3806 | ||
3807 | if (ind->root.type != bfd_link_hash_indirect) | |
3808 | return; | |
3809 | ||
3810 | dirscore = (struct score_elf_link_hash_entry *) dir; | |
3811 | indscore = (struct score_elf_link_hash_entry *) ind; | |
3812 | dirscore->possibly_dynamic_relocs += indscore->possibly_dynamic_relocs; | |
3813 | ||
3814 | if (indscore->readonly_reloc) | |
3815 | dirscore->readonly_reloc = TRUE; | |
3816 | ||
3817 | if (indscore->no_fn_stub) | |
3818 | dirscore->no_fn_stub = TRUE; | |
3819 | } | |
3820 | ||
3821 | /* Remove information about discarded functions from other sections which mention them. */ | |
1c0d3aa6 | 3822 | static bfd_boolean |
c3b7224a NC |
3823 | s3_bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie, |
3824 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3825 | { |
3826 | asection *o; | |
3827 | bfd_boolean ret = FALSE; | |
3828 | unsigned char *tdata; | |
3829 | size_t i, skip; | |
3830 | ||
3831 | o = bfd_get_section_by_name (abfd, ".pdr"); | |
3832 | if ((!o) || (o->size == 0) || (o->size % PDR_SIZE != 0) | |
3833 | || (o->output_section != NULL && bfd_is_abs_section (o->output_section))) | |
3834 | return FALSE; | |
3835 | ||
3836 | tdata = bfd_zmalloc (o->size / PDR_SIZE); | |
3837 | if (!tdata) | |
3838 | return FALSE; | |
3839 | ||
3840 | cookie->rels = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, info->keep_memory); | |
3841 | if (!cookie->rels) | |
3842 | { | |
3843 | free (tdata); | |
3844 | return FALSE; | |
3845 | } | |
3846 | ||
3847 | cookie->rel = cookie->rels; | |
3848 | cookie->relend = cookie->rels + o->reloc_count; | |
3849 | ||
3850 | for (i = 0, skip = 0; i < o->size; i++) | |
3851 | { | |
3852 | if (bfd_elf_reloc_symbol_deleted_p (i * PDR_SIZE, cookie)) | |
3853 | { | |
3854 | tdata[i] = 1; | |
3855 | skip++; | |
3856 | } | |
3857 | } | |
3858 | ||
3859 | if (skip != 0) | |
3860 | { | |
3861 | score_elf_section_data (o)->u.tdata = tdata; | |
3862 | o->size -= skip * PDR_SIZE; | |
3863 | ret = TRUE; | |
3864 | } | |
3865 | else | |
3866 | free (tdata); | |
3867 | ||
3868 | if (!info->keep_memory) | |
3869 | free (cookie->rels); | |
3870 | ||
3871 | return ret; | |
3872 | } | |
3873 | ||
3874 | /* Signal that discard_info() has removed the discarded relocations for this section. */ | |
1c0d3aa6 | 3875 | static bfd_boolean |
c3b7224a | 3876 | s3_bfd_score_elf_ignore_discarded_relocs (asection *sec) |
1c0d3aa6 NC |
3877 | { |
3878 | if (strcmp (sec->name, ".pdr") == 0) | |
3879 | return TRUE; | |
3880 | return FALSE; | |
3881 | } | |
3882 | ||
07adf181 AM |
3883 | /* Return the section that should be marked against GC for a given |
3884 | relocation. */ | |
1c0d3aa6 | 3885 | static asection * |
c3b7224a NC |
3886 | s3_bfd_score_elf_gc_mark_hook (asection *sec, |
3887 | struct bfd_link_info *info, | |
3888 | Elf_Internal_Rela *rel, | |
3889 | struct elf_link_hash_entry *h, | |
3890 | Elf_Internal_Sym *sym) | |
1c0d3aa6 NC |
3891 | { |
3892 | if (h != NULL) | |
07adf181 AM |
3893 | switch (ELF32_R_TYPE (rel->r_info)) |
3894 | { | |
3895 | case R_SCORE_GNU_VTINHERIT: | |
3896 | case R_SCORE_GNU_VTENTRY: | |
c3b7224a | 3897 | return NULL; |
07adf181 | 3898 | } |
1c0d3aa6 | 3899 | |
07adf181 | 3900 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
1c0d3aa6 NC |
3901 | } |
3902 | ||
3903 | /* Support for core dump NOTE sections. */ | |
3904 | ||
3905 | static bfd_boolean | |
c3b7224a | 3906 | s3_bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
1c0d3aa6 NC |
3907 | { |
3908 | int offset; | |
3909 | unsigned int raw_size; | |
3910 | ||
3911 | switch (note->descsz) | |
3912 | { | |
3913 | default: | |
3914 | return FALSE; | |
3915 | ||
3916 | case 148: /* Linux/Score 32-bit. */ | |
3917 | /* pr_cursig */ | |
228e534f AM |
3918 | elf_tdata (abfd)->core->signal |
3919 | = score_bfd_get_16 (abfd, note->descdata + 12); | |
1c0d3aa6 NC |
3920 | |
3921 | /* pr_pid */ | |
228e534f AM |
3922 | elf_tdata (abfd)->core->lwpid |
3923 | = score_bfd_get_32 (abfd, note->descdata + 24); | |
1c0d3aa6 NC |
3924 | |
3925 | /* pr_reg */ | |
3926 | offset = 72; | |
3927 | raw_size = 72; | |
3928 | ||
3929 | break; | |
3930 | } | |
3931 | ||
3932 | /* Make a ".reg/999" section. */ | |
228e534f AM |
3933 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size, |
3934 | note->descpos + offset); | |
1c0d3aa6 NC |
3935 | } |
3936 | ||
3937 | static bfd_boolean | |
c3b7224a | 3938 | s3_bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
1c0d3aa6 NC |
3939 | { |
3940 | switch (note->descsz) | |
3941 | { | |
3942 | default: | |
3943 | return FALSE; | |
3944 | ||
3945 | case 124: /* Linux/Score elf_prpsinfo. */ | |
228e534f AM |
3946 | elf_tdata (abfd)->core->program |
3947 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
3948 | elf_tdata (abfd)->core->command | |
3949 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1c0d3aa6 NC |
3950 | } |
3951 | ||
3952 | /* Note that for some reason, a spurious space is tacked | |
3953 | onto the end of the args in some (at least one anyway) | |
3954 | implementations, so strip it off if it exists. */ | |
3955 | ||
3956 | { | |
228e534f | 3957 | char *command = elf_tdata (abfd)->core->command; |
1c0d3aa6 NC |
3958 | int n = strlen (command); |
3959 | ||
3960 | if (0 < n && command[n - 1] == ' ') | |
3961 | command[n - 1] = '\0'; | |
3962 | } | |
3963 | ||
3964 | return TRUE; | |
3965 | } | |
3966 | ||
3967 | ||
3968 | /* Score BFD functions. */ | |
1c0d3aa6 | 3969 | static reloc_howto_type * |
c3b7224a | 3970 | s3_elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) |
1c0d3aa6 NC |
3971 | { |
3972 | unsigned int i; | |
3973 | ||
c3b7224a | 3974 | for (i = 0; i < ARRAY_SIZE (elf32_score_reloc_map); i++) |
1c0d3aa6 NC |
3975 | if (elf32_score_reloc_map[i].bfd_reloc_val == code) |
3976 | return &elf32_score_howto_table[elf32_score_reloc_map[i].elf_reloc_val]; | |
3977 | ||
3978 | return NULL; | |
3979 | } | |
3980 | ||
157090f7 AM |
3981 | static reloc_howto_type * |
3982 | elf32_score_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
c3b7224a | 3983 | const char *r_name) |
157090f7 AM |
3984 | { |
3985 | unsigned int i; | |
3986 | ||
3987 | for (i = 0; | |
3988 | i < (sizeof (elf32_score_howto_table) | |
c3b7224a | 3989 | / sizeof (elf32_score_howto_table[0])); |
157090f7 AM |
3990 | i++) |
3991 | if (elf32_score_howto_table[i].name != NULL | |
c3b7224a | 3992 | && strcasecmp (elf32_score_howto_table[i].name, r_name) == 0) |
157090f7 AM |
3993 | return &elf32_score_howto_table[i]; |
3994 | ||
3995 | return NULL; | |
3996 | } | |
3997 | ||
1c0d3aa6 | 3998 | static bfd_boolean |
c3b7224a | 3999 | s3_elf32_score_print_private_bfd_data (bfd *abfd, void * ptr) |
1c0d3aa6 NC |
4000 | { |
4001 | FILE *file = (FILE *) ptr; | |
4002 | ||
4003 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
4004 | ||
4005 | /* Print normal ELF private data. */ | |
4006 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
4007 | ||
4008 | /* xgettext:c-format */ | |
4009 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
4010 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_PIC) | |
4011 | { | |
4012 | fprintf (file, _(" [pic]")); | |
4013 | } | |
4014 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_FIXDEP) | |
4015 | { | |
4016 | fprintf (file, _(" [fix dep]")); | |
4017 | } | |
4018 | fputc ('\n', file); | |
4019 | ||
4020 | return TRUE; | |
4021 | } | |
4022 | ||
4023 | static bfd_boolean | |
c3b7224a | 4024 | s3_elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
1c0d3aa6 NC |
4025 | { |
4026 | flagword in_flags; | |
4027 | flagword out_flags; | |
4028 | ||
4029 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
4030 | return FALSE; | |
4031 | ||
4032 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4033 | out_flags = elf_elfheader (obfd)->e_flags; | |
4034 | ||
4035 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4036 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
4037 | return TRUE; | |
4038 | ||
4039 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4040 | out_flags = elf_elfheader (obfd)->e_flags; | |
4041 | ||
4042 | if (! elf_flags_init (obfd)) | |
4043 | { | |
4044 | elf_flags_init (obfd) = TRUE; | |
4045 | elf_elfheader (obfd)->e_flags = in_flags; | |
4046 | ||
4047 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
c3b7224a NC |
4048 | && bfd_get_arch_info (obfd)->the_default) |
4049 | { | |
4050 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
4051 | } | |
1c0d3aa6 NC |
4052 | |
4053 | return TRUE; | |
4054 | } | |
4055 | ||
4056 | if (((in_flags & EF_SCORE_PIC) != 0) != ((out_flags & EF_SCORE_PIC) != 0)) | |
4057 | { | |
4058 | (*_bfd_error_handler) (_("%B: warning: linking PIC files with non-PIC files"), ibfd); | |
4059 | } | |
4060 | ||
4061 | /* FIXME: Maybe dependency fix compatibility should be checked here. */ | |
4062 | ||
4063 | return TRUE; | |
4064 | } | |
4065 | ||
4066 | static bfd_boolean | |
c3b7224a | 4067 | s3_elf32_score_new_section_hook (bfd *abfd, asection *sec) |
1c0d3aa6 NC |
4068 | { |
4069 | struct _score_elf_section_data *sdata; | |
4070 | bfd_size_type amt = sizeof (*sdata); | |
4071 | ||
4072 | sdata = bfd_zalloc (abfd, amt); | |
4073 | if (sdata == NULL) | |
4074 | return FALSE; | |
4075 | sec->used_by_bfd = sdata; | |
4076 | ||
4077 | return _bfd_elf_new_section_hook (abfd, sec); | |
4078 | } | |
4079 | ||
c3b7224a NC |
4080 | /*****************************************************************************/ |
4081 | ||
4082 | /* s3_s7: backend hooks. */ | |
4083 | static void | |
4084 | _bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
4085 | arelent *bfd_reloc, | |
4086 | Elf_Internal_Rela *elf_reloc) | |
4087 | { | |
4088 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4089 | return s3_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc); | |
4090 | else | |
4091 | return s7_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc); | |
4092 | } | |
4093 | ||
4094 | static bfd_boolean | |
4095 | _bfd_score_elf_relocate_section (bfd *output_bfd, | |
4096 | struct bfd_link_info *info, | |
4097 | bfd *input_bfd, | |
4098 | asection *input_section, | |
4099 | bfd_byte *contents, | |
4100 | Elf_Internal_Rela *relocs, | |
4101 | Elf_Internal_Sym *local_syms, | |
4102 | asection **local_sections) | |
4103 | { | |
4104 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4105 | return s3_bfd_score_elf_relocate_section (output_bfd, | |
4106 | info, input_bfd, input_section, contents, relocs, | |
4107 | local_syms, local_sections); | |
4108 | else | |
4109 | return s7_bfd_score_elf_relocate_section (output_bfd, | |
4110 | info, input_bfd, input_section, contents, relocs, | |
4111 | local_syms, local_sections); | |
4112 | } | |
4113 | ||
4114 | static bfd_boolean | |
4115 | _bfd_score_elf_check_relocs (bfd *abfd, | |
4116 | struct bfd_link_info *info, | |
4117 | asection *sec, | |
4118 | const Elf_Internal_Rela *relocs) | |
4119 | { | |
4120 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4121 | return s3_bfd_score_elf_check_relocs (abfd, info, sec, relocs); | |
4122 | else | |
4123 | return s7_bfd_score_elf_check_relocs (abfd, info, sec, relocs); | |
4124 | } | |
4125 | ||
4126 | static bfd_boolean | |
4127 | _bfd_score_elf_add_symbol_hook (bfd *abfd, | |
4128 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4129 | Elf_Internal_Sym *sym, | |
4130 | const char **namep ATTRIBUTE_UNUSED, | |
4131 | flagword *flagsp ATTRIBUTE_UNUSED, | |
4132 | asection **secp, | |
4133 | bfd_vma *valp) | |
4134 | { | |
4135 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4136 | return s3_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, | |
4137 | secp, valp); | |
4138 | else | |
4139 | return s7_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, | |
4140 | secp, valp); | |
4141 | } | |
4142 | ||
4143 | static void | |
4144 | _bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym) | |
4145 | { | |
4146 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4147 | return s3_bfd_score_elf_symbol_processing (abfd, asym); | |
4148 | else | |
4149 | return s7_bfd_score_elf_symbol_processing (abfd, asym); | |
4150 | } | |
4151 | ||
6e0b88f1 | 4152 | static int |
c3b7224a NC |
4153 | _bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4154 | const char *name ATTRIBUTE_UNUSED, | |
4155 | Elf_Internal_Sym *sym, | |
4156 | asection *input_sec, | |
4157 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4158 | { | |
4159 | /* If link a empty .o, then this filed is NULL. */ | |
4160 | if (info->input_bfds == NULL) | |
4161 | { | |
4162 | /* If we see a common symbol, which implies a relocatable link, then | |
4163 | if a symbol was small common in an input file, mark it as small | |
4164 | common in the output file. */ | |
4165 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
4166 | sym->st_shndx = SHN_SCORE_SCOMMON; | |
6e0b88f1 | 4167 | return 1; |
c3b7224a NC |
4168 | } |
4169 | ||
4170 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4171 | return s3_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h); | |
4172 | else | |
4173 | return s7_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h); | |
4174 | } | |
4175 | ||
4176 | static bfd_boolean | |
4177 | _bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, | |
4178 | asection *sec, | |
4179 | int *retval) | |
4180 | { | |
4181 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4182 | return s3_bfd_score_elf_section_from_bfd_section (abfd, sec, retval); | |
4183 | else | |
4184 | return s7_bfd_score_elf_section_from_bfd_section (abfd, sec, retval); | |
4185 | } | |
4186 | ||
4187 | static bfd_boolean | |
4188 | _bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
4189 | struct elf_link_hash_entry *h) | |
4190 | { | |
4191 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4192 | return s3_bfd_score_elf_adjust_dynamic_symbol (info, h); | |
4193 | else | |
4194 | return s7_bfd_score_elf_adjust_dynamic_symbol (info, h); | |
4195 | } | |
4196 | ||
4197 | static bfd_boolean | |
4198 | _bfd_score_elf_always_size_sections (bfd *output_bfd, | |
4199 | struct bfd_link_info *info) | |
4200 | { | |
4201 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4202 | return s3_bfd_score_elf_always_size_sections (output_bfd, info); | |
4203 | else | |
4204 | return s7_bfd_score_elf_always_size_sections (output_bfd, info); | |
4205 | } | |
4206 | ||
4207 | static bfd_boolean | |
4208 | _bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
4209 | { | |
4210 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4211 | return s3_bfd_score_elf_size_dynamic_sections (output_bfd, info); | |
4212 | else | |
4213 | return s7_bfd_score_elf_size_dynamic_sections (output_bfd, info); | |
4214 | } | |
4215 | ||
4216 | static bfd_boolean | |
4217 | _bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
4218 | { | |
4219 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4220 | return s3_bfd_score_elf_create_dynamic_sections (abfd, info); | |
4221 | else | |
4222 | return s7_bfd_score_elf_create_dynamic_sections (abfd, info); | |
4223 | } | |
4224 | ||
4225 | static bfd_boolean | |
4226 | _bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd, | |
4227 | struct bfd_link_info *info, | |
4228 | struct elf_link_hash_entry *h, | |
4229 | Elf_Internal_Sym *sym) | |
4230 | { | |
4231 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4232 | return s3_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym); | |
4233 | else | |
4234 | return s7_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym); | |
4235 | } | |
4236 | ||
4237 | static bfd_boolean | |
4238 | _bfd_score_elf_finish_dynamic_sections (bfd *output_bfd, | |
4239 | struct bfd_link_info *info) | |
4240 | { | |
4241 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4242 | return s3_bfd_score_elf_finish_dynamic_sections (output_bfd, info); | |
4243 | else | |
4244 | return s7_bfd_score_elf_finish_dynamic_sections (output_bfd, info); | |
4245 | } | |
4246 | ||
4247 | static bfd_boolean | |
4248 | _bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
4249 | Elf_Internal_Shdr *hdr, | |
4250 | asection *sec) | |
4251 | { | |
4252 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4253 | return s3_bfd_score_elf_fake_sections (abfd, hdr, sec); | |
4254 | else | |
4255 | return s7_bfd_score_elf_fake_sections (abfd, hdr, sec); | |
4256 | } | |
4257 | ||
4258 | static bfd_boolean | |
4259 | _bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr) | |
4260 | { | |
4261 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4262 | return s3_bfd_score_elf_section_processing (abfd, hdr); | |
4263 | else | |
4264 | return s7_bfd_score_elf_section_processing (abfd, hdr); | |
4265 | } | |
4266 | ||
4267 | static bfd_boolean | |
4268 | _bfd_score_elf_write_section (bfd *output_bfd, | |
4269 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, | |
4270 | asection *sec, bfd_byte *contents) | |
4271 | { | |
4272 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4273 | return s3_bfd_score_elf_write_section (output_bfd, sec, contents); | |
4274 | else | |
4275 | return s7_bfd_score_elf_write_section (output_bfd, sec, contents); | |
4276 | } | |
4277 | ||
4278 | static void | |
4279 | _bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
4280 | struct elf_link_hash_entry *dir, | |
4281 | struct elf_link_hash_entry *ind) | |
4282 | { | |
4283 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4284 | return s3_bfd_score_elf_copy_indirect_symbol (info, dir, ind); | |
4285 | else | |
4286 | return s7_bfd_score_elf_copy_indirect_symbol (info, dir, ind); | |
4287 | } | |
4288 | ||
4289 | static void | |
4290 | _bfd_score_elf_hide_symbol (struct bfd_link_info *info, | |
4291 | struct elf_link_hash_entry *entry, | |
4292 | bfd_boolean force_local) | |
4293 | { | |
4294 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4295 | return s3_bfd_score_elf_hide_symbol (info, entry, force_local); | |
4296 | else | |
4297 | return s7_bfd_score_elf_hide_symbol (info, entry, force_local); | |
4298 | } | |
4299 | ||
4300 | static bfd_boolean | |
4301 | _bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie, | |
4302 | struct bfd_link_info *info) | |
4303 | { | |
4304 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4305 | return s3_bfd_score_elf_discard_info (abfd, cookie, info); | |
4306 | else | |
4307 | return s7_bfd_score_elf_discard_info (abfd, cookie, info); | |
4308 | } | |
4309 | ||
4310 | static bfd_boolean | |
4311 | _bfd_score_elf_ignore_discarded_relocs (asection *sec) | |
4312 | { | |
4313 | if (bfd_get_mach (sec->owner) == bfd_mach_score3) | |
4314 | return s3_bfd_score_elf_ignore_discarded_relocs (sec); | |
4315 | else | |
4316 | return s7_bfd_score_elf_ignore_discarded_relocs (sec); | |
4317 | } | |
4318 | ||
4319 | static asection * | |
4320 | _bfd_score_elf_gc_mark_hook (asection *sec, | |
4321 | struct bfd_link_info *info, | |
4322 | Elf_Internal_Rela *rel, | |
4323 | struct elf_link_hash_entry *h, | |
4324 | Elf_Internal_Sym *sym) | |
4325 | { | |
4326 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4327 | return s3_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym); | |
4328 | else | |
4329 | return s7_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym); | |
4330 | } | |
4331 | ||
4332 | static bfd_boolean | |
4333 | _bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
4334 | { | |
4335 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4336 | return s3_bfd_score_elf_grok_prstatus (abfd, note); | |
4337 | else | |
4338 | return s7_bfd_score_elf_grok_prstatus (abfd, note); | |
4339 | } | |
4340 | ||
4341 | static bfd_boolean | |
4342 | _bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
4343 | { | |
4344 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4345 | return s3_bfd_score_elf_grok_psinfo (abfd, note); | |
4346 | else | |
4347 | return s7_bfd_score_elf_grok_psinfo (abfd, note); | |
4348 | } | |
4349 | ||
4350 | static reloc_howto_type * | |
4351 | elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) | |
4352 | { | |
4353 | /* s3: NOTE!!! | |
4354 | gas will call elf32_score_reloc_type_lookup, and don't write elf file. | |
4355 | So just using score3, but we don't know ld will call this or not. | |
4356 | If so, this way can't work. */ | |
4357 | ||
4358 | if (score3) | |
4359 | return s3_elf32_score_reloc_type_lookup (abfd, code); | |
4360 | else | |
4361 | return s7_elf32_score_reloc_type_lookup (abfd, code); | |
4362 | } | |
4363 | ||
4dfe6ac6 NC |
4364 | /* Create a score elf linker hash table. |
4365 | This is a copy of _bfd_elf_link_hash_table_create() except with a | |
4366 | different hash table entry creation function. */ | |
4367 | ||
c3b7224a NC |
4368 | static struct bfd_link_hash_table * |
4369 | elf32_score_link_hash_table_create (bfd *abfd) | |
4370 | { | |
4dfe6ac6 NC |
4371 | struct elf_link_hash_table *ret; |
4372 | bfd_size_type amt = sizeof (struct elf_link_hash_table); | |
4373 | ||
7bf52ea2 | 4374 | ret = (struct elf_link_hash_table *) bfd_zmalloc (amt); |
4dfe6ac6 NC |
4375 | if (ret == NULL) |
4376 | return NULL; | |
4377 | ||
4378 | if (!_bfd_elf_link_hash_table_init (ret, abfd, score_elf_link_hash_newfunc, | |
4379 | sizeof (struct score_elf_link_hash_entry), | |
4380 | GENERIC_ELF_DATA)) | |
4381 | { | |
4382 | free (ret); | |
4383 | return NULL; | |
4384 | } | |
4385 | ||
4386 | return &ret->root; | |
c3b7224a NC |
4387 | } |
4388 | ||
4389 | static bfd_boolean | |
4390 | elf32_score_print_private_bfd_data (bfd *abfd, void * ptr) | |
4391 | { | |
4392 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4393 | return s3_elf32_score_print_private_bfd_data (abfd, ptr); | |
4394 | else | |
4395 | return s7_elf32_score_print_private_bfd_data (abfd, ptr); | |
4396 | } | |
4397 | ||
4398 | static bfd_boolean | |
4399 | elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4400 | { | |
4401 | if (bfd_get_mach (obfd) == bfd_mach_score3) | |
4402 | return s3_elf32_score_merge_private_bfd_data (ibfd, obfd); | |
4403 | else | |
4404 | return s7_elf32_score_merge_private_bfd_data (ibfd, obfd); | |
4405 | } | |
4406 | ||
4407 | static bfd_boolean | |
4408 | elf32_score_new_section_hook (bfd *abfd, asection *sec) | |
4409 | { | |
4410 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4411 | return s3_elf32_score_new_section_hook (abfd, sec); | |
4412 | else | |
4413 | return s7_elf32_score_new_section_hook (abfd, sec); | |
4414 | } | |
4415 | ||
4416 | ||
4417 | /* s3_s7: don't need to split. */ | |
4418 | ||
4419 | /* Set the right machine number. */ | |
4420 | static bfd_boolean | |
4421 | _bfd_score_elf_score_object_p (bfd * abfd) | |
4422 | { | |
4423 | int e_set = bfd_mach_score7; | |
4424 | ||
4425 | if (elf_elfheader (abfd)->e_machine == EM_SCORE) | |
4426 | { | |
4427 | int e_mach = elf_elfheader (abfd)->e_flags & EF_SCORE_MACH & EF_OMIT_PIC_FIXDD; | |
4428 | switch (e_mach) | |
4429 | { | |
4430 | /* Set default target is score7. */ | |
4431 | default: | |
4432 | case E_SCORE_MACH_SCORE7: | |
4433 | e_set = bfd_mach_score7; | |
4434 | break; | |
4435 | ||
4436 | case E_SCORE_MACH_SCORE3: | |
4437 | e_set = bfd_mach_score3; | |
4438 | break; | |
4439 | } | |
4440 | } | |
4441 | ||
4442 | return bfd_default_set_arch_mach (abfd, bfd_arch_score, e_set); | |
4443 | } | |
4444 | ||
4445 | bfd_boolean | |
4446 | _bfd_score_elf_common_definition (Elf_Internal_Sym *sym) | |
4447 | { | |
4448 | return (sym->st_shndx == SHN_COMMON || sym->st_shndx == SHN_SCORE_SCOMMON); | |
4449 | } | |
4450 | ||
4451 | /*****************************************************************************/ | |
4452 | ||
1c0d3aa6 NC |
4453 | |
4454 | #define USE_REL 1 | |
6d00b590 | 4455 | #define TARGET_LITTLE_SYM score_elf32_le_vec |
1c0d3aa6 | 4456 | #define TARGET_LITTLE_NAME "elf32-littlescore" |
6d00b590 | 4457 | #define TARGET_BIG_SYM score_elf32_be_vec |
1c0d3aa6 NC |
4458 | #define TARGET_BIG_NAME "elf32-bigscore" |
4459 | #define ELF_ARCH bfd_arch_score | |
4460 | #define ELF_MACHINE_CODE EM_SCORE | |
c3b7224a | 4461 | #define ELF_MACHINE_ALT1 EM_SCORE_OLD |
1c0d3aa6 NC |
4462 | #define ELF_MAXPAGESIZE 0x8000 |
4463 | ||
9838404f AM |
4464 | #define elf_info_to_howto 0 |
4465 | #define elf_info_to_howto_rel _bfd_score_info_to_howto | |
4466 | #define elf_backend_relocate_section _bfd_score_elf_relocate_section | |
4467 | #define elf_backend_check_relocs _bfd_score_elf_check_relocs | |
4468 | #define elf_backend_add_symbol_hook _bfd_score_elf_add_symbol_hook | |
4469 | #define elf_backend_symbol_processing _bfd_score_elf_symbol_processing | |
4470 | #define elf_backend_link_output_symbol_hook \ | |
4471 | _bfd_score_elf_link_output_symbol_hook | |
4472 | #define elf_backend_section_from_bfd_section \ | |
4473 | _bfd_score_elf_section_from_bfd_section | |
4474 | #define elf_backend_adjust_dynamic_symbol \ | |
4475 | _bfd_score_elf_adjust_dynamic_symbol | |
4476 | #define elf_backend_always_size_sections \ | |
4477 | _bfd_score_elf_always_size_sections | |
4478 | #define elf_backend_size_dynamic_sections \ | |
4479 | _bfd_score_elf_size_dynamic_sections | |
4480 | #define elf_backend_omit_section_dynsym \ | |
4481 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
4482 | #define elf_backend_create_dynamic_sections \ | |
4483 | _bfd_score_elf_create_dynamic_sections | |
4484 | #define elf_backend_finish_dynamic_symbol \ | |
4485 | _bfd_score_elf_finish_dynamic_symbol | |
4486 | #define elf_backend_finish_dynamic_sections \ | |
4487 | _bfd_score_elf_finish_dynamic_sections | |
4488 | #define elf_backend_fake_sections _bfd_score_elf_fake_sections | |
4489 | #define elf_backend_section_processing _bfd_score_elf_section_processing | |
4490 | #define elf_backend_write_section _bfd_score_elf_write_section | |
4491 | #define elf_backend_copy_indirect_symbol _bfd_score_elf_copy_indirect_symbol | |
4492 | #define elf_backend_hide_symbol _bfd_score_elf_hide_symbol | |
4493 | #define elf_backend_discard_info _bfd_score_elf_discard_info | |
4494 | #define elf_backend_ignore_discarded_relocs \ | |
4495 | _bfd_score_elf_ignore_discarded_relocs | |
4496 | #define elf_backend_gc_mark_hook _bfd_score_elf_gc_mark_hook | |
4497 | #define elf_backend_grok_prstatus _bfd_score_elf_grok_prstatus | |
4498 | #define elf_backend_grok_psinfo _bfd_score_elf_grok_psinfo | |
4499 | #define elf_backend_can_gc_sections 1 | |
4500 | #define elf_backend_want_plt_sym 0 | |
4501 | #define elf_backend_got_header_size (4 * SCORE_RESERVED_GOTNO) | |
4502 | #define elf_backend_plt_header_size 0 | |
4503 | #define elf_backend_collect TRUE | |
4504 | #define elf_backend_type_change_ok TRUE | |
c3b7224a | 4505 | #define elf_backend_object_p _bfd_score_elf_score_object_p |
9838404f AM |
4506 | |
4507 | #define bfd_elf32_bfd_reloc_type_lookup elf32_score_reloc_type_lookup | |
157090f7 AM |
4508 | #define bfd_elf32_bfd_reloc_name_lookup \ |
4509 | elf32_score_reloc_name_lookup | |
9838404f AM |
4510 | #define bfd_elf32_bfd_link_hash_table_create elf32_score_link_hash_table_create |
4511 | #define bfd_elf32_bfd_print_private_bfd_data elf32_score_print_private_bfd_data | |
4512 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_score_merge_private_bfd_data | |
4513 | #define bfd_elf32_new_section_hook elf32_score_new_section_hook | |
1c0d3aa6 NC |
4514 | |
4515 | #include "elf32-target.h" |