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c3b7224a | 1 | /* 32-bit ELF support for S+core. |
fd67aa11 | 2 | Copyright (C) 2009-2024 Free Software Foundation, Inc. |
c3b7224a NC |
3 | Contributed by |
4 | Brain.lin (brain.lin@sunplusct.com) | |
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 | |
12 | the Free Software Foundation; either version 3 of the License, or | |
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 | |
22 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
23 | MA 02110-1301, USA. */ | |
24 | ||
c3b7224a | 25 | #include "sysdep.h" |
691bf19c | 26 | #include "bfd.h" |
c3b7224a 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" | |
34 | #include "elf32-score.h" | |
35 | ||
36 | ||
c3b7224a NC |
37 | /* The SCORE ELF linker needs additional information for each symbol in |
38 | the global hash table. */ | |
39 | struct score_elf_link_hash_entry | |
40 | { | |
41 | struct elf_link_hash_entry root; | |
42 | ||
43 | /* Number of R_SCORE_ABS32, R_SCORE_REL32 relocs against this symbol. */ | |
44 | unsigned int possibly_dynamic_relocs; | |
45 | ||
46 | /* If the R_SCORE_ABS32, R_SCORE_REL32 reloc is against a readonly section. */ | |
0a1b45a2 | 47 | bool readonly_reloc; |
c3b7224a NC |
48 | |
49 | /* We must not create a stub for a symbol that has relocations related to | |
50 | taking the function's address, i.e. any but R_SCORE_CALL15 ones. */ | |
0a1b45a2 | 51 | bool no_fn_stub; |
c3b7224a NC |
52 | |
53 | /* Are we forced local? This will only be set if we have converted | |
54 | the initial global GOT entry to a local GOT entry. */ | |
0a1b45a2 | 55 | bool forced_local; |
c3b7224a NC |
56 | }; |
57 | ||
58 | /* Traverse a score ELF linker hash table. */ | |
59 | #define score_elf_link_hash_traverse(table, func, info) \ | |
0a1b45a2 AM |
60 | (elf_link_hash_traverse \ |
61 | ((table), \ | |
62 | (bool (*) (struct elf_link_hash_entry *, void *)) (func), \ | |
c3b7224a NC |
63 | (info))) |
64 | ||
c3b7224a NC |
65 | /* This structure is used to hold .got entries while estimating got sizes. */ |
66 | struct score_got_entry | |
67 | { | |
68 | /* The input bfd in which the symbol is defined. */ | |
69 | bfd *abfd; | |
70 | /* The index of the symbol, as stored in the relocation r_info, if | |
71 | we have a local symbol; -1 otherwise. */ | |
72 | long symndx; | |
73 | union | |
74 | { | |
75 | /* If abfd == NULL, an address that must be stored in the got. */ | |
76 | bfd_vma address; | |
77 | /* If abfd != NULL && symndx != -1, the addend of the relocation | |
78 | that should be added to the symbol value. */ | |
79 | bfd_vma addend; | |
80 | /* If abfd != NULL && symndx == -1, the hash table entry | |
81 | corresponding to a global symbol in the got (or, local, if | |
82 | h->forced_local). */ | |
83 | struct score_elf_link_hash_entry *h; | |
84 | } d; | |
85 | ||
86 | /* The offset from the beginning of the .got section to the entry | |
87 | corresponding to this symbol+addend. If it's a global symbol | |
88 | whose offset is yet to be decided, it's going to be -1. */ | |
89 | long gotidx; | |
90 | }; | |
91 | ||
92 | /* This structure is passed to score_elf_sort_hash_table_f when sorting | |
93 | the dynamic symbols. */ | |
94 | struct score_elf_hash_sort_data | |
95 | { | |
96 | /* The symbol in the global GOT with the lowest dynamic symbol table index. */ | |
97 | struct elf_link_hash_entry *low; | |
98 | /* The least dynamic symbol table index corresponding to a symbol with a GOT entry. */ | |
99 | long min_got_dynindx; | |
100 | /* The greatest dynamic symbol table index corresponding to a symbol | |
101 | with a GOT entry that is not referenced (e.g., a dynamic symbol | |
102 | with dynamic relocations pointing to it from non-primary GOTs). */ | |
103 | long max_unref_got_dynindx; | |
104 | /* The greatest dynamic symbol table index not corresponding to a | |
105 | symbol without a GOT entry. */ | |
106 | long max_non_got_dynindx; | |
107 | }; | |
108 | ||
109 | struct score_got_info | |
110 | { | |
111 | /* The global symbol in the GOT with the lowest index in the dynamic | |
112 | symbol table. */ | |
113 | struct elf_link_hash_entry *global_gotsym; | |
114 | /* The number of global .got entries. */ | |
115 | unsigned int global_gotno; | |
116 | /* The number of local .got entries. */ | |
117 | unsigned int local_gotno; | |
118 | /* The number of local .got entries we have used. */ | |
119 | unsigned int assigned_gotno; | |
120 | /* A hash table holding members of the got. */ | |
121 | struct htab *got_entries; | |
122 | /* In multi-got links, a pointer to the next got (err, rather, most | |
123 | of the time, it points to the previous got). */ | |
124 | struct score_got_info *next; | |
125 | }; | |
126 | ||
127 | /* A structure used to count GOT entries, for GOT entry or ELF symbol table traversal. */ | |
128 | struct _score_elf_section_data | |
129 | { | |
130 | struct bfd_elf_section_data elf; | |
131 | union | |
132 | { | |
133 | struct score_got_info *got_info; | |
134 | bfd_byte *tdata; | |
135 | } | |
136 | u; | |
137 | }; | |
138 | ||
139 | #define score_elf_section_data(sec) \ | |
140 | ((struct _score_elf_section_data *) elf_section_data (sec)) | |
141 | ||
142 | /* The size of a symbol-table entry. */ | |
143 | #define SCORE_ELF_SYM_SIZE(abfd) \ | |
144 | (get_elf_backend_data (abfd)->s->sizeof_sym) | |
145 | ||
146 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
147 | from smaller values. Start with zero, widen, *then* decrement. */ | |
148 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
149 | #define MINUS_TWO (((bfd_vma)0) - 2) | |
150 | ||
151 | #define PDR_SIZE 32 | |
152 | ||
153 | ||
154 | /* The number of local .got entries we reserve. */ | |
07d6d2b8 | 155 | #define SCORE_RESERVED_GOTNO (2) |
c3b7224a NC |
156 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
157 | ||
158 | /* The offset of $gp from the beginning of the .got section. */ | |
159 | #define ELF_SCORE_GP_OFFSET(abfd) (0x3ff0) | |
160 | ||
161 | /* The maximum size of the GOT for it to be addressable using 15-bit offsets from $gp. */ | |
162 | #define SCORE_ELF_GOT_MAX_SIZE(abfd) (ELF_SCORE_GP_OFFSET(abfd) + 0x3fff) | |
163 | ||
164 | #define SCORE_ELF_STUB_SECTION_NAME (".SCORE.stub") | |
165 | #define SCORE_FUNCTION_STUB_SIZE (16) | |
166 | ||
167 | #define STUB_LW 0xc3bcc010 /* lw r29, [r28, -0x3ff0] */ | |
168 | #define STUB_MOVE 0x8323bc56 /* mv r25, r3 */ | |
169 | #define STUB_LI16 0x87548000 /* ori r26, .dynsym_index */ | |
170 | #define STUB_BRL 0x801dbc09 /* brl r29 */ | |
171 | ||
172 | #define SCORE_ELF_GOT_SIZE(abfd) \ | |
173 | (get_elf_backend_data (abfd)->s->arch_size / 8) | |
174 | ||
175 | #define SCORE_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ | |
176 | (_bfd_elf_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val)) | |
177 | ||
178 | /* The size of an external dynamic table entry. */ | |
179 | #define SCORE_ELF_DYN_SIZE(abfd) \ | |
180 | (get_elf_backend_data (abfd)->s->sizeof_dyn) | |
181 | ||
182 | /* The size of an external REL relocation. */ | |
183 | #define SCORE_ELF_REL_SIZE(abfd) \ | |
184 | (get_elf_backend_data (abfd)->s->sizeof_rel) | |
185 | ||
186 | /* The default alignment for sections, as a power of two. */ | |
187 | #define SCORE_ELF_LOG_FILE_ALIGN(abfd)\ | |
188 | (get_elf_backend_data (abfd)->s->log_file_align) | |
189 | ||
190 | static bfd_byte *hi16_rel_addr; | |
191 | ||
192 | /* This will be used when we sort the dynamic relocation records. */ | |
193 | static bfd *reldyn_sorting_bfd; | |
194 | ||
195 | /* SCORE ELF uses two common sections. One is the usual one, and the | |
196 | other is for small objects. All the small objects are kept | |
197 | together, and then referenced via the gp pointer, which yields | |
198 | faster assembler code. This is what we use for the small common | |
199 | section. This approach is copied from ecoff.c. */ | |
7f3a18cf AM |
200 | static asection score_elf_scom_section; |
201 | static const asymbol score_elf_scom_symbol = | |
202 | GLOBAL_SYM_INIT (".scommon", &score_elf_scom_section); | |
203 | static asection score_elf_scom_section = | |
204 | BFD_FAKE_SECTION (score_elf_scom_section, &score_elf_scom_symbol, | |
205 | ".scommon", 0, SEC_IS_COMMON | SEC_SMALL_DATA); | |
c3b7224a NC |
206 | |
207 | static bfd_reloc_status_type | |
208 | score_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 AM |
209 | arelent *reloc_entry, |
210 | asymbol *symbol ATTRIBUTE_UNUSED, | |
211 | void * data, | |
212 | asection *input_section ATTRIBUTE_UNUSED, | |
213 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
214 | char **error_message ATTRIBUTE_UNUSED) | |
c3b7224a NC |
215 | { |
216 | hi16_rel_addr = (bfd_byte *) data + reloc_entry->address; | |
217 | return bfd_reloc_ok; | |
218 | } | |
219 | ||
220 | static bfd_reloc_status_type | |
221 | score_elf_lo16_reloc (bfd *abfd, | |
07d6d2b8 AM |
222 | arelent *reloc_entry, |
223 | asymbol *symbol ATTRIBUTE_UNUSED, | |
224 | void * data, | |
225 | asection *input_section, | |
226 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
227 | char **error_message ATTRIBUTE_UNUSED) | |
c3b7224a NC |
228 | { |
229 | bfd_vma addend = 0, offset = 0; | |
230 | unsigned long val; | |
231 | unsigned long hi16_offset, hi16_value, uvalue; | |
232 | ||
233 | hi16_value = bfd_get_32 (abfd, hi16_rel_addr); | |
234 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; | |
235 | addend = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
236 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; | |
237 | val = reloc_entry->addend; | |
238 | if (reloc_entry->address > input_section->size) | |
239 | return bfd_reloc_outofrange; | |
240 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
241 | hi16_offset = (uvalue >> 16) << 1; | |
242 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
243 | bfd_put_32 (abfd, hi16_value, hi16_rel_addr); | |
244 | offset = (uvalue & 0xffff) << 1; | |
245 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
246 | bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); | |
247 | return bfd_reloc_ok; | |
248 | } | |
249 | ||
250 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a | |
251 | dangerous relocation. */ | |
252 | ||
0a1b45a2 | 253 | static bool |
c3b7224a NC |
254 | score_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) |
255 | { | |
256 | unsigned int count; | |
257 | asymbol **sym; | |
258 | unsigned int i; | |
259 | ||
260 | /* If we've already figured out what GP will be, just return it. */ | |
261 | *pgp = _bfd_get_gp_value (output_bfd); | |
262 | if (*pgp) | |
0a1b45a2 | 263 | return true; |
c3b7224a NC |
264 | |
265 | count = bfd_get_symcount (output_bfd); | |
266 | sym = bfd_get_outsymbols (output_bfd); | |
267 | ||
268 | /* The linker script will have created a symbol named `_gp' with the | |
269 | appropriate value. */ | |
270 | if (sym == NULL) | |
271 | i = count; | |
272 | else | |
273 | { | |
274 | for (i = 0; i < count; i++, sym++) | |
07d6d2b8 AM |
275 | { |
276 | const char *name; | |
277 | ||
278 | name = bfd_asymbol_name (*sym); | |
279 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
280 | { | |
281 | *pgp = bfd_asymbol_value (*sym); | |
282 | _bfd_set_gp_value (output_bfd, *pgp); | |
283 | break; | |
284 | } | |
285 | } | |
c3b7224a NC |
286 | } |
287 | ||
288 | if (i >= count) | |
289 | { | |
290 | /* Only get the error once. */ | |
291 | *pgp = 4; | |
292 | _bfd_set_gp_value (output_bfd, *pgp); | |
0a1b45a2 | 293 | return false; |
c3b7224a NC |
294 | } |
295 | ||
0a1b45a2 | 296 | return true; |
c3b7224a NC |
297 | } |
298 | ||
299 | /* We have to figure out the gp value, so that we can adjust the | |
300 | symbol value correctly. We look up the symbol _gp in the output | |
301 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
302 | target data. We don't need to adjust the symbol value for an | |
303 | external symbol if we are producing relocatable output. */ | |
304 | ||
305 | static bfd_reloc_status_type | |
306 | score_elf_final_gp (bfd *output_bfd, | |
07d6d2b8 | 307 | asymbol *symbol, |
0a1b45a2 | 308 | bool relocatable, |
07d6d2b8 AM |
309 | char **error_message, |
310 | bfd_vma *pgp) | |
c3b7224a NC |
311 | { |
312 | if (bfd_is_und_section (symbol->section) | |
313 | && ! relocatable) | |
314 | { | |
315 | *pgp = 0; | |
316 | return bfd_reloc_undefined; | |
317 | } | |
318 | ||
319 | *pgp = _bfd_get_gp_value (output_bfd); | |
320 | if (*pgp == 0 | |
321 | && (! relocatable | |
07d6d2b8 | 322 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
c3b7224a NC |
323 | { |
324 | if (relocatable) | |
07d6d2b8 AM |
325 | { |
326 | /* Make up a value. */ | |
327 | *pgp = symbol->section->output_section->vma + 0x4000; | |
328 | _bfd_set_gp_value (output_bfd, *pgp); | |
329 | } | |
c3b7224a | 330 | else if (!score_elf_assign_gp (output_bfd, pgp)) |
07d6d2b8 AM |
331 | { |
332 | *error_message = | |
333 | (char *) _("GP relative relocation when _gp not defined"); | |
334 | return bfd_reloc_dangerous; | |
335 | } | |
c3b7224a NC |
336 | } |
337 | ||
338 | return bfd_reloc_ok; | |
339 | } | |
340 | ||
341 | static bfd_reloc_status_type | |
342 | score_elf_gprel15_with_gp (bfd *abfd, | |
07d6d2b8 AM |
343 | arelent *reloc_entry, |
344 | asection *input_section, | |
0a1b45a2 | 345 | bool relocateable, |
07d6d2b8 AM |
346 | void * data, |
347 | bfd_vma gp ATTRIBUTE_UNUSED) | |
c3b7224a | 348 | { |
c3b7224a NC |
349 | unsigned long insn; |
350 | ||
c3b7224a NC |
351 | if (reloc_entry->address > input_section->size) |
352 | return bfd_reloc_outofrange; | |
353 | ||
354 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
355 | if (((reloc_entry->addend & 0xffffc000) != 0) | |
356 | && ((reloc_entry->addend & 0xffffc000) != 0xffffc000)) | |
357 | return bfd_reloc_overflow; | |
358 | ||
359 | insn = (insn & ~0x7fff) | (reloc_entry->addend & 0x7fff); | |
360 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
361 | if (relocateable) | |
362 | reloc_entry->address += input_section->output_offset; | |
363 | ||
364 | return bfd_reloc_ok; | |
365 | } | |
366 | ||
367 | static bfd_reloc_status_type | |
368 | gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry, | |
0a1b45a2 | 369 | asection *input_section, bool relocatable, |
07d6d2b8 | 370 | void *data, bfd_vma gp) |
c3b7224a NC |
371 | { |
372 | bfd_vma relocation; | |
373 | bfd_vma val; | |
374 | ||
375 | if (bfd_is_com_section (symbol->section)) | |
376 | relocation = 0; | |
377 | else | |
378 | relocation = symbol->value; | |
379 | ||
380 | relocation += symbol->section->output_section->vma; | |
381 | relocation += symbol->section->output_offset; | |
382 | ||
383 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
384 | return bfd_reloc_outofrange; | |
385 | ||
386 | /* Set val to the offset into the section or symbol. */ | |
387 | val = reloc_entry->addend; | |
388 | ||
389 | if (reloc_entry->howto->partial_inplace) | |
390 | val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
391 | ||
392 | /* Adjust val for the final section location and GP value. If we | |
393 | are producing relocatable output, we don't want to do this for | |
394 | an external symbol. */ | |
395 | if (! relocatable | |
396 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
397 | val += relocation - gp; | |
398 | ||
399 | if (reloc_entry->howto->partial_inplace) | |
400 | bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); | |
401 | else | |
402 | reloc_entry->addend = val; | |
403 | ||
404 | if (relocatable) | |
405 | reloc_entry->address += input_section->output_offset; | |
406 | ||
407 | return bfd_reloc_ok; | |
408 | } | |
409 | ||
410 | static bfd_reloc_status_type | |
411 | score_elf_gprel15_reloc (bfd *abfd, | |
07d6d2b8 AM |
412 | arelent *reloc_entry, |
413 | asymbol *symbol, | |
414 | void * data, | |
415 | asection *input_section, | |
416 | bfd *output_bfd, | |
417 | char **error_message) | |
c3b7224a | 418 | { |
0a1b45a2 | 419 | bool relocateable; |
c3b7224a NC |
420 | bfd_reloc_status_type ret; |
421 | bfd_vma gp; | |
422 | ||
423 | if (output_bfd != NULL | |
424 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) | |
425 | { | |
426 | reloc_entry->address += input_section->output_offset; | |
427 | return bfd_reloc_ok; | |
428 | } | |
429 | if (output_bfd != NULL) | |
0a1b45a2 | 430 | relocateable = true; |
c3b7224a NC |
431 | else |
432 | { | |
0a1b45a2 | 433 | relocateable = false; |
c3b7224a | 434 | output_bfd = symbol->section->output_section->owner; |
804439b4 NC |
435 | if (output_bfd == NULL) |
436 | return bfd_reloc_undefined; | |
c3b7224a NC |
437 | } |
438 | ||
439 | ret = score_elf_final_gp (output_bfd, symbol, relocateable, error_message, &gp); | |
440 | if (ret != bfd_reloc_ok) | |
441 | return ret; | |
442 | ||
9bc8e54b | 443 | return score_elf_gprel15_with_gp (abfd, reloc_entry, |
804439b4 | 444 | input_section, relocateable, data, gp); |
c3b7224a NC |
445 | } |
446 | ||
447 | /* Do a R_SCORE_GPREL32 relocation. This is a 32 bit value which must | |
448 | become the offset from the gp register. */ | |
449 | ||
450 | static bfd_reloc_status_type | |
451 | score_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
07d6d2b8 AM |
452 | void *data, asection *input_section, bfd *output_bfd, |
453 | char **error_message) | |
c3b7224a | 454 | { |
0a1b45a2 | 455 | bool relocatable; |
c3b7224a NC |
456 | bfd_reloc_status_type ret; |
457 | bfd_vma gp; | |
458 | ||
459 | /* R_SCORE_GPREL32 relocations are defined for local symbols only. */ | |
460 | if (output_bfd != NULL | |
461 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
462 | && (symbol->flags & BSF_LOCAL) != 0) | |
463 | { | |
464 | *error_message = (char *) | |
07d6d2b8 | 465 | _("32bits gp relative relocation occurs for an external symbol"); |
c3b7224a NC |
466 | return bfd_reloc_outofrange; |
467 | } | |
468 | ||
469 | if (output_bfd != NULL) | |
0a1b45a2 | 470 | relocatable = true; |
c3b7224a NC |
471 | else |
472 | { | |
0a1b45a2 | 473 | relocatable = false; |
c3b7224a NC |
474 | output_bfd = symbol->section->output_section->owner; |
475 | } | |
476 | ||
477 | ret = score_elf_final_gp (output_bfd, symbol, relocatable, error_message, &gp); | |
478 | if (ret != bfd_reloc_ok) | |
479 | return ret; | |
480 | ||
481 | gp = 0; | |
482 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, | |
07d6d2b8 | 483 | relocatable, data, gp); |
c3b7224a NC |
484 | } |
485 | ||
486 | /* A howto special_function for R_SCORE_GOT15 relocations. This is just | |
487 | like any other 16-bit relocation when applied to global symbols, but is | |
488 | treated in the same as R_SCORE_HI16 when applied to local symbols. */ | |
489 | ||
490 | static bfd_reloc_status_type | |
491 | score_elf_got15_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
07d6d2b8 AM |
492 | void *data, asection *input_section, |
493 | bfd *output_bfd, char **error_message) | |
c3b7224a NC |
494 | { |
495 | if ((symbol->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
e6f7f6d1 AM |
496 | || bfd_is_und_section (bfd_asymbol_section (symbol)) |
497 | || bfd_is_com_section (bfd_asymbol_section (symbol))) | |
c3b7224a NC |
498 | /* The relocation is against a global symbol. */ |
499 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
07d6d2b8 AM |
500 | input_section, output_bfd, |
501 | error_message); | |
c3b7224a NC |
502 | |
503 | return score_elf_hi16_reloc (abfd, reloc_entry, symbol, data, | |
07d6d2b8 | 504 | input_section, output_bfd, error_message); |
c3b7224a NC |
505 | } |
506 | ||
507 | static bfd_reloc_status_type | |
508 | score_elf_got_lo16_reloc (bfd *abfd, | |
07d6d2b8 AM |
509 | arelent *reloc_entry, |
510 | asymbol *symbol ATTRIBUTE_UNUSED, | |
511 | void * data, | |
512 | asection *input_section, | |
513 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
514 | char **error_message ATTRIBUTE_UNUSED) | |
c3b7224a NC |
515 | { |
516 | bfd_vma addend = 0, offset = 0; | |
517 | signed long val; | |
518 | signed long hi16_offset, hi16_value, uvalue; | |
519 | ||
520 | hi16_value = bfd_get_32 (abfd, hi16_rel_addr); | |
521 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; | |
522 | addend = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
523 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; | |
524 | val = reloc_entry->addend; | |
525 | if (reloc_entry->address > input_section->size) | |
526 | return bfd_reloc_outofrange; | |
527 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
528 | if ((uvalue > -0x8000) && (uvalue < 0x7fff)) | |
529 | hi16_offset = 0; | |
530 | else | |
531 | hi16_offset = (uvalue >> 16) & 0x7fff; | |
532 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
533 | bfd_put_32 (abfd, hi16_value, hi16_rel_addr); | |
534 | offset = (uvalue & 0xffff) << 1; | |
535 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
536 | bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); | |
537 | return bfd_reloc_ok; | |
538 | } | |
539 | ||
540 | static reloc_howto_type elf32_score_howto_table[] = | |
541 | { | |
542 | /* No relocation. */ | |
07d6d2b8 AM |
543 | HOWTO (R_SCORE_NONE, /* type */ |
544 | 0, /* rightshift */ | |
c94cb026 | 545 | 0, /* size */ |
07d6d2b8 | 546 | 0, /* bitsize */ |
0a1b45a2 | 547 | false, /* pc_relative */ |
07d6d2b8 AM |
548 | 0, /* bitpos */ |
549 | complain_overflow_dont,/* complain_on_overflow */ | |
550 | bfd_elf_generic_reloc, /* special_function */ | |
551 | "R_SCORE_NONE", /* name */ | |
0a1b45a2 | 552 | false, /* partial_inplace */ |
07d6d2b8 AM |
553 | 0, /* src_mask */ |
554 | 0, /* dst_mask */ | |
0a1b45a2 | 555 | false), /* pcrel_offset */ |
c3b7224a NC |
556 | |
557 | /* R_SCORE_HI16 */ | |
07d6d2b8 AM |
558 | HOWTO (R_SCORE_HI16, /* type */ |
559 | 0, /* rightshift */ | |
c94cb026 | 560 | 4, /* size */ |
07d6d2b8 | 561 | 16, /* bitsize */ |
0a1b45a2 | 562 | false, /* pc_relative */ |
07d6d2b8 AM |
563 | 1, /* bitpos */ |
564 | complain_overflow_dont,/* complain_on_overflow */ | |
565 | score_elf_hi16_reloc, /* special_function */ | |
566 | "R_SCORE_HI16", /* name */ | |
0a1b45a2 | 567 | true, /* partial_inplace */ |
07d6d2b8 AM |
568 | 0x37fff, /* src_mask */ |
569 | 0x37fff, /* dst_mask */ | |
0a1b45a2 | 570 | false), /* pcrel_offset */ |
c3b7224a NC |
571 | |
572 | /* R_SCORE_LO16 */ | |
07d6d2b8 AM |
573 | HOWTO (R_SCORE_LO16, /* type */ |
574 | 0, /* rightshift */ | |
c94cb026 | 575 | 4, /* size */ |
07d6d2b8 | 576 | 16, /* bitsize */ |
0a1b45a2 | 577 | false, /* pc_relative */ |
07d6d2b8 AM |
578 | 1, /* bitpos */ |
579 | complain_overflow_dont,/* complain_on_overflow */ | |
580 | score_elf_lo16_reloc, /* special_function */ | |
581 | "R_SCORE_LO16", /* name */ | |
0a1b45a2 | 582 | true, /* partial_inplace */ |
07d6d2b8 AM |
583 | 0x37fff, /* src_mask */ |
584 | 0x37fff, /* dst_mask */ | |
0a1b45a2 | 585 | false), /* pcrel_offset */ |
c3b7224a NC |
586 | |
587 | /* R_SCORE_BCMP */ | |
07d6d2b8 AM |
588 | HOWTO (R_SCORE_BCMP, /* type */ |
589 | 0, /* rightshift */ | |
c94cb026 | 590 | 4, /* size */ |
07d6d2b8 | 591 | 16, /* bitsize */ |
0a1b45a2 | 592 | false, /* pc_relative */ |
07d6d2b8 AM |
593 | 1, /* bitpos */ |
594 | complain_overflow_dont,/* complain_on_overflow */ | |
595 | bfd_elf_generic_reloc, /* special_function */ | |
596 | "R_SCORE_BCMP", /* name */ | |
0a1b45a2 | 597 | true, /* partial_inplace */ |
07d6d2b8 AM |
598 | 0x0000ffff, /* src_mask */ |
599 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 600 | false), /* pcrel_offset */ |
07d6d2b8 AM |
601 | |
602 | HOWTO (R_SCORE_24, /* type */ | |
603 | 1, /* rightshift */ | |
c94cb026 | 604 | 4, /* size */ |
07d6d2b8 | 605 | 24, /* bitsize */ |
0a1b45a2 | 606 | false, /* pc_relative */ |
07d6d2b8 AM |
607 | 1, /* bitpos */ |
608 | complain_overflow_dont,/* complain_on_overflow */ | |
609 | bfd_elf_generic_reloc, /* special_function */ | |
610 | "R_SCORE_24", /* name */ | |
0a1b45a2 | 611 | false, /* partial_inplace */ |
07d6d2b8 AM |
612 | 0x3ff7fff, /* src_mask */ |
613 | 0x3ff7fff, /* dst_mask */ | |
0a1b45a2 | 614 | false), /* pcrel_offset */ |
c3b7224a NC |
615 | |
616 | /*R_SCORE_PC19 */ | |
07d6d2b8 AM |
617 | HOWTO (R_SCORE_PC19, /* type */ |
618 | 1, /* rightshift */ | |
c94cb026 | 619 | 4, /* size */ |
07d6d2b8 | 620 | 19, /* bitsize */ |
0a1b45a2 | 621 | true, /* pc_relative */ |
07d6d2b8 AM |
622 | 1, /* bitpos */ |
623 | complain_overflow_dont,/* complain_on_overflow */ | |
624 | bfd_elf_generic_reloc, /* special_function */ | |
625 | "R_SCORE_PC19", /* name */ | |
0a1b45a2 | 626 | false, /* partial_inplace */ |
07d6d2b8 AM |
627 | 0x3ff03fe, /* src_mask */ |
628 | 0x3ff03fe, /* dst_mask */ | |
0a1b45a2 | 629 | false), /* pcrel_offset */ |
c3b7224a NC |
630 | |
631 | /*R_SCORE16_11 */ | |
07d6d2b8 AM |
632 | HOWTO (R_SCORE16_11, /* type */ |
633 | 1, /* rightshift */ | |
c94cb026 | 634 | 2, /* size */ |
07d6d2b8 | 635 | 11, /* bitsize */ |
0a1b45a2 | 636 | false, /* pc_relative */ |
07d6d2b8 AM |
637 | 1, /* bitpos */ |
638 | complain_overflow_dont,/* complain_on_overflow */ | |
639 | bfd_elf_generic_reloc, /* special_function */ | |
640 | "R_SCORE16_11", /* name */ | |
0a1b45a2 | 641 | false, /* partial_inplace */ |
07d6d2b8 AM |
642 | 0x000000ffe, /* src_mask */ |
643 | 0x000000ffe, /* dst_mask */ | |
0a1b45a2 | 644 | false), /* pcrel_offset */ |
c3b7224a NC |
645 | |
646 | /* R_SCORE16_PC8 */ | |
07d6d2b8 AM |
647 | HOWTO (R_SCORE16_PC8, /* type */ |
648 | 1, /* rightshift */ | |
c94cb026 | 649 | 2, /* size */ |
07d6d2b8 | 650 | 8, /* bitsize */ |
0a1b45a2 | 651 | true, /* pc_relative */ |
07d6d2b8 AM |
652 | 0, /* bitpos */ |
653 | complain_overflow_dont,/* complain_on_overflow */ | |
654 | bfd_elf_generic_reloc, /* special_function */ | |
655 | "R_SCORE16_PC8", /* name */ | |
0a1b45a2 | 656 | false, /* partial_inplace */ |
07d6d2b8 AM |
657 | 0x000000ff, /* src_mask */ |
658 | 0x000000ff, /* dst_mask */ | |
0a1b45a2 | 659 | false), /* pcrel_offset */ |
c3b7224a NC |
660 | |
661 | /* 32 bit absolute */ | |
07d6d2b8 AM |
662 | HOWTO (R_SCORE_ABS32, /* type 8 */ |
663 | 0, /* rightshift */ | |
c94cb026 | 664 | 4, /* size */ |
07d6d2b8 | 665 | 32, /* bitsize */ |
0a1b45a2 | 666 | false, /* pc_relative */ |
07d6d2b8 AM |
667 | 0, /* bitpos */ |
668 | complain_overflow_bitfield, /* complain_on_overflow */ | |
669 | bfd_elf_generic_reloc, /* special_function */ | |
670 | "R_SCORE_ABS32", /* name */ | |
0a1b45a2 | 671 | false, /* partial_inplace */ |
07d6d2b8 AM |
672 | 0xffffffff, /* src_mask */ |
673 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 674 | false), /* pcrel_offset */ |
c3b7224a NC |
675 | |
676 | /* 16 bit absolute */ | |
07d6d2b8 AM |
677 | HOWTO (R_SCORE_ABS16, /* type 11 */ |
678 | 0, /* rightshift */ | |
c94cb026 | 679 | 2, /* size */ |
07d6d2b8 | 680 | 16, /* bitsize */ |
0a1b45a2 | 681 | false, /* pc_relative */ |
07d6d2b8 AM |
682 | 0, /* bitpos */ |
683 | complain_overflow_bitfield, /* complain_on_overflow */ | |
684 | bfd_elf_generic_reloc, /* special_function */ | |
685 | "R_SCORE_ABS16", /* name */ | |
0a1b45a2 | 686 | false, /* partial_inplace */ |
07d6d2b8 AM |
687 | 0x0000ffff, /* src_mask */ |
688 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 689 | false), /* pcrel_offset */ |
c3b7224a NC |
690 | |
691 | /* R_SCORE_DUMMY2 */ | |
07d6d2b8 AM |
692 | HOWTO (R_SCORE_DUMMY2, /* type */ |
693 | 0, /* rightshift */ | |
c94cb026 | 694 | 4, /* size */ |
07d6d2b8 | 695 | 16, /* bitsize */ |
0a1b45a2 | 696 | false, /* pc_relative */ |
07d6d2b8 AM |
697 | 0, /* bitpos */ |
698 | complain_overflow_dont,/* complain_on_overflow */ | |
699 | bfd_elf_generic_reloc, /* special_function */ | |
700 | "R_SCORE_DUMMY2", /* name */ | |
0a1b45a2 | 701 | true, /* partial_inplace */ |
07d6d2b8 AM |
702 | 0x00007fff, /* src_mask */ |
703 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 704 | false), /* pcrel_offset */ |
c3b7224a NC |
705 | |
706 | /* R_SCORE_GP15 */ | |
07d6d2b8 AM |
707 | HOWTO (R_SCORE_GP15, /* type */ |
708 | 0, /* rightshift */ | |
c94cb026 | 709 | 4, /* size */ |
07d6d2b8 | 710 | 16, /* bitsize */ |
0a1b45a2 | 711 | false, /* pc_relative */ |
07d6d2b8 AM |
712 | 0, /* bitpos */ |
713 | complain_overflow_dont,/* complain_on_overflow */ | |
714 | score_elf_gprel15_reloc,/* special_function */ | |
715 | "R_SCORE_GP15", /* name */ | |
0a1b45a2 | 716 | true, /* partial_inplace */ |
07d6d2b8 AM |
717 | 0x00007fff, /* src_mask */ |
718 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 719 | false), /* pcrel_offset */ |
c3b7224a NC |
720 | |
721 | /* GNU extension to record C++ vtable hierarchy. */ | |
722 | HOWTO (R_SCORE_GNU_VTINHERIT, /* type */ | |
07d6d2b8 | 723 | 0, /* rightshift */ |
c94cb026 | 724 | 4, /* size */ |
07d6d2b8 | 725 | 0, /* bitsize */ |
0a1b45a2 | 726 | false, /* pc_relative */ |
07d6d2b8 AM |
727 | 0, /* bitpos */ |
728 | complain_overflow_dont,/* complain_on_overflow */ | |
729 | NULL, /* special_function */ | |
730 | "R_SCORE_GNU_VTINHERIT", /* name */ | |
0a1b45a2 | 731 | false, /* partial_inplace */ |
07d6d2b8 AM |
732 | 0, /* src_mask */ |
733 | 0, /* dst_mask */ | |
0a1b45a2 | 734 | false), /* pcrel_offset */ |
c3b7224a NC |
735 | |
736 | /* GNU extension to record C++ vtable member usage */ | |
07d6d2b8 AM |
737 | HOWTO (R_SCORE_GNU_VTENTRY, /* type */ |
738 | 0, /* rightshift */ | |
c94cb026 | 739 | 4, /* size */ |
07d6d2b8 | 740 | 0, /* bitsize */ |
0a1b45a2 | 741 | false, /* pc_relative */ |
07d6d2b8 AM |
742 | 0, /* bitpos */ |
743 | complain_overflow_dont,/* complain_on_overflow */ | |
744 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
745 | "R_SCORE_GNU_VTENTRY", /* name */ | |
0a1b45a2 | 746 | false, /* partial_inplace */ |
07d6d2b8 AM |
747 | 0, /* src_mask */ |
748 | 0, /* dst_mask */ | |
0a1b45a2 | 749 | false), /* pcrel_offset */ |
c3b7224a NC |
750 | |
751 | /* Reference to global offset table. */ | |
07d6d2b8 AM |
752 | HOWTO (R_SCORE_GOT15, /* type */ |
753 | 0, /* rightshift */ | |
c94cb026 | 754 | 4, /* size */ |
07d6d2b8 | 755 | 16, /* bitsize */ |
0a1b45a2 | 756 | false, /* pc_relative */ |
07d6d2b8 AM |
757 | 0, /* bitpos */ |
758 | complain_overflow_signed, /* complain_on_overflow */ | |
759 | score_elf_got15_reloc, /* special_function */ | |
760 | "R_SCORE_GOT15", /* name */ | |
0a1b45a2 | 761 | true, /* partial_inplace */ |
07d6d2b8 AM |
762 | 0x00007fff, /* src_mask */ |
763 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 764 | false), /* pcrel_offset */ |
c3b7224a NC |
765 | |
766 | /* Low 16 bits of displacement in global offset table. */ | |
07d6d2b8 AM |
767 | HOWTO (R_SCORE_GOT_LO16, /* type */ |
768 | 0, /* rightshift */ | |
c94cb026 | 769 | 4, /* size */ |
07d6d2b8 | 770 | 16, /* bitsize */ |
0a1b45a2 | 771 | false, /* pc_relative */ |
07d6d2b8 AM |
772 | 1, /* bitpos */ |
773 | complain_overflow_dont,/* complain_on_overflow */ | |
774 | score_elf_got_lo16_reloc, /* special_function */ | |
775 | "R_SCORE_GOT_LO16", /* name */ | |
0a1b45a2 | 776 | true, /* partial_inplace */ |
07d6d2b8 AM |
777 | 0x37ffe, /* src_mask */ |
778 | 0x37ffe, /* dst_mask */ | |
0a1b45a2 | 779 | false), /* pcrel_offset */ |
c3b7224a NC |
780 | |
781 | /* 15 bit call through global offset table. */ | |
07d6d2b8 AM |
782 | HOWTO (R_SCORE_CALL15, /* type */ |
783 | 0, /* rightshift */ | |
c94cb026 | 784 | 4, /* size */ |
07d6d2b8 | 785 | 16, /* bitsize */ |
0a1b45a2 | 786 | false, /* pc_relative */ |
07d6d2b8 AM |
787 | 0, /* bitpos */ |
788 | complain_overflow_signed, /* complain_on_overflow */ | |
789 | bfd_elf_generic_reloc, /* special_function */ | |
790 | "R_SCORE_CALL15", /* name */ | |
0a1b45a2 | 791 | true, /* partial_inplace */ |
07d6d2b8 AM |
792 | 0x00007fff, /* src_mask */ |
793 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 794 | false), /* pcrel_offset */ |
c3b7224a NC |
795 | |
796 | /* 32 bit GP relative reference. */ | |
07d6d2b8 AM |
797 | HOWTO (R_SCORE_GPREL32, /* type */ |
798 | 0, /* rightshift */ | |
c94cb026 | 799 | 4, /* size */ |
07d6d2b8 | 800 | 32, /* bitsize */ |
0a1b45a2 | 801 | false, /* pc_relative */ |
07d6d2b8 AM |
802 | 0, /* bitpos */ |
803 | complain_overflow_dont,/* complain_on_overflow */ | |
804 | score_elf_gprel32_reloc, /* special_function */ | |
805 | "R_SCORE_GPREL32", /* name */ | |
0a1b45a2 | 806 | true, /* partial_inplace */ |
07d6d2b8 AM |
807 | 0xffffffff, /* src_mask */ |
808 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 809 | false), /* pcrel_offset */ |
c3b7224a NC |
810 | |
811 | /* 32 bit symbol relative relocation. */ | |
07d6d2b8 AM |
812 | HOWTO (R_SCORE_REL32, /* type */ |
813 | 0, /* rightshift */ | |
c94cb026 | 814 | 4, /* size */ |
07d6d2b8 | 815 | 32, /* bitsize */ |
0a1b45a2 | 816 | false, /* pc_relative */ |
07d6d2b8 AM |
817 | 0, /* bitpos */ |
818 | complain_overflow_dont,/* complain_on_overflow */ | |
819 | bfd_elf_generic_reloc, /* special_function */ | |
820 | "R_SCORE_REL32", /* name */ | |
0a1b45a2 | 821 | true, /* partial_inplace */ |
07d6d2b8 AM |
822 | 0xffffffff, /* src_mask */ |
823 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 824 | false), /* pcrel_offset */ |
c3b7224a NC |
825 | |
826 | /* R_SCORE_DUMMY_HI16 */ | |
07d6d2b8 AM |
827 | HOWTO (R_SCORE_DUMMY_HI16, /* type */ |
828 | 0, /* rightshift */ | |
c94cb026 | 829 | 4, /* size */ |
07d6d2b8 | 830 | 16, /* bitsize */ |
0a1b45a2 | 831 | false, /* pc_relative */ |
07d6d2b8 AM |
832 | 1, /* bitpos */ |
833 | complain_overflow_dont,/* complain_on_overflow */ | |
834 | score_elf_hi16_reloc, /* special_function */ | |
835 | "R_SCORE_DUMMY_HI16", /* name */ | |
0a1b45a2 | 836 | true, /* partial_inplace */ |
07d6d2b8 AM |
837 | 0x37fff, /* src_mask */ |
838 | 0x37fff, /* dst_mask */ | |
0a1b45a2 | 839 | false), /* pcrel_offset */ |
c3b7224a NC |
840 | }; |
841 | ||
842 | struct score_reloc_map | |
843 | { | |
844 | bfd_reloc_code_real_type bfd_reloc_val; | |
845 | unsigned char elf_reloc_val; | |
846 | }; | |
847 | ||
848 | static const struct score_reloc_map elf32_score_reloc_map[] = | |
849 | { | |
07d6d2b8 AM |
850 | {BFD_RELOC_NONE, R_SCORE_NONE}, |
851 | {BFD_RELOC_HI16_S, R_SCORE_HI16}, | |
852 | {BFD_RELOC_LO16, R_SCORE_LO16}, | |
853 | {BFD_RELOC_SCORE_BCMP, R_SCORE_BCMP}, | |
854 | {BFD_RELOC_SCORE_JMP, R_SCORE_24}, | |
855 | {BFD_RELOC_SCORE_BRANCH, R_SCORE_PC19}, | |
856 | {BFD_RELOC_SCORE16_JMP, R_SCORE16_11}, | |
857 | {BFD_RELOC_SCORE16_BRANCH, R_SCORE16_PC8}, | |
858 | {BFD_RELOC_32, R_SCORE_ABS32}, | |
859 | {BFD_RELOC_16, R_SCORE_ABS16}, | |
860 | {BFD_RELOC_SCORE_DUMMY2, R_SCORE_DUMMY2}, | |
861 | {BFD_RELOC_SCORE_GPREL15, R_SCORE_GP15}, | |
862 | {BFD_RELOC_VTABLE_INHERIT, R_SCORE_GNU_VTINHERIT}, | |
863 | {BFD_RELOC_VTABLE_ENTRY, R_SCORE_GNU_VTENTRY}, | |
864 | {BFD_RELOC_SCORE_GOT15, R_SCORE_GOT15}, | |
865 | {BFD_RELOC_SCORE_GOT_LO16, R_SCORE_GOT_LO16}, | |
866 | {BFD_RELOC_SCORE_CALL15, R_SCORE_CALL15}, | |
867 | {BFD_RELOC_GPREL32, R_SCORE_GPREL32}, | |
868 | {BFD_RELOC_32_PCREL, R_SCORE_REL32}, | |
869 | {BFD_RELOC_SCORE_DUMMY_HI16, R_SCORE_DUMMY_HI16}, | |
c3b7224a NC |
870 | }; |
871 | ||
42eec46f | 872 | static inline hashval_t |
c3b7224a NC |
873 | score_elf_hash_bfd_vma (bfd_vma addr) |
874 | { | |
875 | #ifdef BFD64 | |
876 | return addr + (addr >> 32); | |
877 | #else | |
878 | return addr; | |
879 | #endif | |
880 | } | |
881 | ||
882 | /* got_entries only match if they're identical, except for gotidx, so | |
883 | use all fields to compute the hash, and compare the appropriate | |
884 | union members. */ | |
885 | ||
886 | static hashval_t | |
887 | score_elf_got_entry_hash (const void *entry_) | |
888 | { | |
889 | const struct score_got_entry *entry = (struct score_got_entry *) entry_; | |
890 | ||
891 | return entry->symndx | |
892 | + (! entry->abfd ? score_elf_hash_bfd_vma (entry->d.address) | |
893 | : entry->abfd->id | |
07d6d2b8 AM |
894 | + (entry->symndx >= 0 ? score_elf_hash_bfd_vma (entry->d.addend) |
895 | : entry->d.h->root.root.root.hash)); | |
c3b7224a NC |
896 | } |
897 | ||
898 | static int | |
899 | score_elf_got_entry_eq (const void *entry1, const void *entry2) | |
900 | { | |
901 | const struct score_got_entry *e1 = (struct score_got_entry *) entry1; | |
902 | const struct score_got_entry *e2 = (struct score_got_entry *) entry2; | |
903 | ||
904 | return e1->abfd == e2->abfd && e1->symndx == e2->symndx | |
905 | && (! e1->abfd ? e1->d.address == e2->d.address | |
07d6d2b8 AM |
906 | : e1->symndx >= 0 ? e1->d.addend == e2->d.addend |
907 | : e1->d.h == e2->d.h); | |
c3b7224a NC |
908 | } |
909 | ||
910 | /* If H needs a GOT entry, assign it the highest available dynamic | |
911 | index. Otherwise, assign it the lowest available dynamic | |
912 | index. */ | |
913 | ||
0a1b45a2 | 914 | static bool |
c3b7224a NC |
915 | score_elf_sort_hash_table_f (struct score_elf_link_hash_entry *h, void *data) |
916 | { | |
917 | struct score_elf_hash_sort_data *hsd = data; | |
918 | ||
c3b7224a NC |
919 | /* Symbols without dynamic symbol table entries aren't interesting at all. */ |
920 | if (h->root.dynindx == -1) | |
0a1b45a2 | 921 | return true; |
c3b7224a NC |
922 | |
923 | /* Global symbols that need GOT entries that are not explicitly | |
924 | referenced are marked with got offset 2. Those that are | |
925 | referenced get a 1, and those that don't need GOT entries get | |
926 | -1. */ | |
927 | if (h->root.got.offset == 2) | |
928 | { | |
929 | if (hsd->max_unref_got_dynindx == hsd->min_got_dynindx) | |
07d6d2b8 | 930 | hsd->low = (struct elf_link_hash_entry *) h; |
c3b7224a NC |
931 | h->root.dynindx = hsd->max_unref_got_dynindx++; |
932 | } | |
933 | else if (h->root.got.offset != 1) | |
934 | h->root.dynindx = hsd->max_non_got_dynindx++; | |
935 | else | |
936 | { | |
937 | h->root.dynindx = --hsd->min_got_dynindx; | |
938 | hsd->low = (struct elf_link_hash_entry *) h; | |
939 | } | |
940 | ||
0a1b45a2 | 941 | return true; |
c3b7224a NC |
942 | } |
943 | ||
944 | static asection * | |
0a1b45a2 | 945 | score_elf_got_section (bfd *abfd, bool maybe_excluded) |
c3b7224a | 946 | { |
3d4d4302 | 947 | asection *sgot = bfd_get_linker_section (abfd, ".got"); |
c3b7224a NC |
948 | |
949 | if (sgot == NULL || (! maybe_excluded && (sgot->flags & SEC_EXCLUDE) != 0)) | |
950 | return NULL; | |
951 | return sgot; | |
952 | } | |
953 | ||
954 | /* Returns the GOT information associated with the link indicated by | |
955 | INFO. If SGOTP is non-NULL, it is filled in with the GOT section. */ | |
956 | ||
957 | static struct score_got_info * | |
958 | score_elf_got_info (bfd *abfd, asection **sgotp) | |
959 | { | |
960 | asection *sgot; | |
961 | struct score_got_info *g; | |
962 | ||
0a1b45a2 | 963 | sgot = score_elf_got_section (abfd, true); |
c3b7224a NC |
964 | BFD_ASSERT (sgot != NULL); |
965 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
966 | g = score_elf_section_data (sgot)->u.got_info; | |
967 | BFD_ASSERT (g != NULL); | |
968 | ||
969 | if (sgotp) | |
970 | *sgotp = sgot; | |
971 | return g; | |
972 | } | |
973 | ||
974 | /* Sort the dynamic symbol table so that symbols that need GOT entries | |
975 | appear towards the end. This reduces the amount of GOT space | |
976 | required. MAX_LOCAL is used to set the number of local symbols | |
977 | known to be in the dynamic symbol table. During | |
af969b14 | 978 | s7_bfd_score_elf_late_size_sections, this value is 1. Afterward, the |
c3b7224a NC |
979 | section symbols are added and the count is higher. */ |
980 | ||
0a1b45a2 | 981 | static bool |
c3b7224a | 982 | score_elf_sort_hash_table (struct bfd_link_info *info, |
07d6d2b8 | 983 | unsigned long max_local) |
c3b7224a NC |
984 | { |
985 | struct score_elf_hash_sort_data hsd; | |
986 | struct score_got_info *g; | |
987 | bfd *dynobj; | |
988 | ||
989 | dynobj = elf_hash_table (info)->dynobj; | |
990 | ||
991 | g = score_elf_got_info (dynobj, NULL); | |
992 | ||
993 | hsd.low = NULL; | |
994 | hsd.max_unref_got_dynindx = | |
995 | hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount | |
996 | /* In the multi-got case, assigned_gotno of the master got_info | |
997 | indicate the number of entries that aren't referenced in the | |
998 | primary GOT, but that must have entries because there are | |
999 | dynamic relocations that reference it. Since they aren't | |
1000 | referenced, we move them to the end of the GOT, so that they | |
1001 | don't prevent other entries that are referenced from getting | |
1002 | too large offsets. */ | |
1003 | - (g->next ? g->assigned_gotno : 0); | |
1004 | hsd.max_non_got_dynindx = max_local; | |
4dfe6ac6 NC |
1005 | score_elf_link_hash_traverse (elf_hash_table (info), |
1006 | score_elf_sort_hash_table_f, | |
1007 | &hsd); | |
c3b7224a NC |
1008 | |
1009 | /* There should have been enough room in the symbol table to | |
1010 | accommodate both the GOT and non-GOT symbols. */ | |
1011 | BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx); | |
1012 | BFD_ASSERT ((unsigned long) hsd.max_unref_got_dynindx | |
07d6d2b8 | 1013 | <= elf_hash_table (info)->dynsymcount); |
c3b7224a NC |
1014 | |
1015 | /* Now we know which dynamic symbol has the lowest dynamic symbol | |
1016 | table index in the GOT. */ | |
1017 | g->global_gotsym = hsd.low; | |
1018 | ||
0a1b45a2 | 1019 | return true; |
c3b7224a NC |
1020 | } |
1021 | ||
c3b7224a NC |
1022 | /* Returns the first relocation of type r_type found, beginning with |
1023 | RELOCATION. RELEND is one-past-the-end of the relocation table. */ | |
1024 | ||
1025 | static const Elf_Internal_Rela * | |
1026 | score_elf_next_relocation (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type, | |
07d6d2b8 AM |
1027 | const Elf_Internal_Rela *relocation, |
1028 | const Elf_Internal_Rela *relend) | |
c3b7224a NC |
1029 | { |
1030 | while (relocation < relend) | |
1031 | { | |
1032 | if (ELF32_R_TYPE (relocation->r_info) == r_type) | |
07d6d2b8 | 1033 | return relocation; |
c3b7224a NC |
1034 | |
1035 | ++relocation; | |
1036 | } | |
1037 | ||
1038 | /* We didn't find it. */ | |
1039 | bfd_set_error (bfd_error_bad_value); | |
1040 | return NULL; | |
1041 | } | |
1042 | ||
1043 | /* This function is called via qsort() to sort the dynamic relocation | |
1044 | entries by increasing r_symndx value. */ | |
1045 | static int | |
1046 | score_elf_sort_dynamic_relocs (const void *arg1, const void *arg2) | |
1047 | { | |
1048 | Elf_Internal_Rela int_reloc1; | |
1049 | Elf_Internal_Rela int_reloc2; | |
1050 | ||
1051 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg1, &int_reloc1); | |
1052 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg2, &int_reloc2); | |
1053 | ||
1054 | return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info)); | |
1055 | } | |
1056 | ||
1057 | /* Return whether a relocation is against a local symbol. */ | |
0a1b45a2 | 1058 | static bool |
c3b7224a | 1059 | score_elf_local_relocation_p (bfd *input_bfd, |
07d6d2b8 AM |
1060 | const Elf_Internal_Rela *relocation, |
1061 | asection **local_sections, | |
0a1b45a2 | 1062 | bool check_forced) |
c3b7224a NC |
1063 | { |
1064 | unsigned long r_symndx; | |
1065 | Elf_Internal_Shdr *symtab_hdr; | |
1066 | struct score_elf_link_hash_entry *h; | |
1067 | size_t extsymoff; | |
1068 | ||
1069 | r_symndx = ELF32_R_SYM (relocation->r_info); | |
1070 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1071 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; | |
1072 | ||
1073 | if (r_symndx < extsymoff) | |
0a1b45a2 | 1074 | return true; |
c3b7224a | 1075 | if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL) |
0a1b45a2 | 1076 | return true; |
c3b7224a NC |
1077 | |
1078 | if (check_forced) | |
1079 | { | |
1080 | /* Look up the hash table to check whether the symbol was forced local. */ | |
1081 | h = (struct score_elf_link_hash_entry *) | |
07d6d2b8 | 1082 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]; |
c3b7224a NC |
1083 | /* Find the real hash-table entry for this symbol. */ |
1084 | while (h->root.root.type == bfd_link_hash_indirect | |
07d6d2b8 AM |
1085 | || h->root.root.type == bfd_link_hash_warning) |
1086 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
c3b7224a | 1087 | if (h->root.forced_local) |
0a1b45a2 | 1088 | return true; |
c3b7224a NC |
1089 | } |
1090 | ||
0a1b45a2 | 1091 | return false; |
c3b7224a NC |
1092 | } |
1093 | ||
1094 | /* Returns the dynamic relocation section for DYNOBJ. */ | |
1095 | ||
1096 | static asection * | |
0a1b45a2 | 1097 | score_elf_rel_dyn_section (bfd *dynobj, bool create_p) |
c3b7224a NC |
1098 | { |
1099 | static const char dname[] = ".rel.dyn"; | |
1100 | asection *sreloc; | |
1101 | ||
3d4d4302 | 1102 | sreloc = bfd_get_linker_section (dynobj, dname); |
c3b7224a NC |
1103 | if (sreloc == NULL && create_p) |
1104 | { | |
3d4d4302 AM |
1105 | sreloc = bfd_make_section_anyway_with_flags (dynobj, dname, |
1106 | (SEC_ALLOC | |
1107 | | SEC_LOAD | |
1108 | | SEC_HAS_CONTENTS | |
1109 | | SEC_IN_MEMORY | |
1110 | | SEC_LINKER_CREATED | |
1111 | | SEC_READONLY)); | |
c3b7224a | 1112 | if (sreloc == NULL |
fd361982 AM |
1113 | || !bfd_set_section_alignment (sreloc, |
1114 | SCORE_ELF_LOG_FILE_ALIGN (dynobj))) | |
07d6d2b8 | 1115 | return NULL; |
c3b7224a NC |
1116 | } |
1117 | return sreloc; | |
1118 | } | |
1119 | ||
1120 | static void | |
1121 | score_elf_allocate_dynamic_relocations (bfd *abfd, unsigned int n) | |
1122 | { | |
1123 | asection *s; | |
1124 | ||
0a1b45a2 | 1125 | s = score_elf_rel_dyn_section (abfd, false); |
c3b7224a NC |
1126 | BFD_ASSERT (s != NULL); |
1127 | ||
1128 | if (s->size == 0) | |
1129 | { | |
1130 | /* Make room for a null element. */ | |
1131 | s->size += SCORE_ELF_REL_SIZE (abfd); | |
1132 | ++s->reloc_count; | |
1133 | } | |
1134 | s->size += n * SCORE_ELF_REL_SIZE (abfd); | |
1135 | } | |
1136 | ||
1137 | /* Create a rel.dyn relocation for the dynamic linker to resolve. REL | |
1138 | is the original relocation, which is now being transformed into a | |
1139 | dynamic relocation. The ADDENDP is adjusted if necessary; the | |
1140 | caller should store the result in place of the original addend. */ | |
1141 | ||
0a1b45a2 | 1142 | static bool |
c3b7224a | 1143 | score_elf_create_dynamic_relocation (bfd *output_bfd, |
07d6d2b8 AM |
1144 | struct bfd_link_info *info, |
1145 | const Elf_Internal_Rela *rel, | |
1146 | struct score_elf_link_hash_entry *h, | |
1147 | bfd_vma symbol, | |
1148 | bfd_vma *addendp, asection *input_section) | |
c3b7224a NC |
1149 | { |
1150 | Elf_Internal_Rela outrel[3]; | |
1151 | asection *sreloc; | |
1152 | bfd *dynobj; | |
1153 | int r_type; | |
1154 | long indx; | |
0a1b45a2 | 1155 | bool defined_p; |
c3b7224a NC |
1156 | |
1157 | r_type = ELF32_R_TYPE (rel->r_info); | |
1158 | dynobj = elf_hash_table (info)->dynobj; | |
0a1b45a2 | 1159 | sreloc = score_elf_rel_dyn_section (dynobj, false); |
c3b7224a NC |
1160 | BFD_ASSERT (sreloc != NULL); |
1161 | BFD_ASSERT (sreloc->contents != NULL); | |
1162 | BFD_ASSERT (sreloc->reloc_count * SCORE_ELF_REL_SIZE (output_bfd) < sreloc->size); | |
1163 | ||
1164 | outrel[0].r_offset = | |
1165 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[0].r_offset); | |
1166 | outrel[1].r_offset = | |
1167 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[1].r_offset); | |
1168 | outrel[2].r_offset = | |
1169 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[2].r_offset); | |
1170 | ||
1171 | if (outrel[0].r_offset == MINUS_ONE) | |
1172 | /* The relocation field has been deleted. */ | |
0a1b45a2 | 1173 | return true; |
c3b7224a NC |
1174 | |
1175 | if (outrel[0].r_offset == MINUS_TWO) | |
1176 | { | |
1177 | /* The relocation field has been converted into a relative value of | |
07d6d2b8 AM |
1178 | some sort. Functions like _bfd_elf_write_section_eh_frame expect |
1179 | the field to be fully relocated, so add in the symbol's value. */ | |
c3b7224a | 1180 | *addendp += symbol; |
0a1b45a2 | 1181 | return true; |
c3b7224a NC |
1182 | } |
1183 | ||
1184 | /* We must now calculate the dynamic symbol table index to use | |
1185 | in the relocation. */ | |
1186 | if (h != NULL | |
1187 | && (! info->symbolic || !h->root.def_regular) | |
1188 | /* h->root.dynindx may be -1 if this symbol was marked to | |
07d6d2b8 | 1189 | become local. */ |
c3b7224a NC |
1190 | && h->root.dynindx != -1) |
1191 | { | |
1192 | indx = h->root.dynindx; | |
07d6d2b8 AM |
1193 | /* ??? glibc's ld.so just adds the final GOT entry to the |
1194 | relocation field. It therefore treats relocs against | |
1195 | defined symbols in the same way as relocs against | |
1196 | undefined symbols. */ | |
0a1b45a2 | 1197 | defined_p = false; |
c3b7224a NC |
1198 | } |
1199 | else | |
1200 | { | |
1201 | indx = 0; | |
0a1b45a2 | 1202 | defined_p = true; |
c3b7224a NC |
1203 | } |
1204 | ||
1205 | /* If the relocation was previously an absolute relocation and | |
1206 | this symbol will not be referred to by the relocation, we must | |
1207 | adjust it by the value we give it in the dynamic symbol table. | |
1208 | Otherwise leave the job up to the dynamic linker. */ | |
1209 | if (defined_p && r_type != R_SCORE_REL32) | |
1210 | *addendp += symbol; | |
1211 | ||
1212 | /* The relocation is always an REL32 relocation because we don't | |
1213 | know where the shared library will wind up at load-time. */ | |
1214 | outrel[0].r_info = ELF32_R_INFO ((unsigned long) indx, R_SCORE_REL32); | |
1215 | ||
1216 | /* For strict adherence to the ABI specification, we should | |
1217 | generate a R_SCORE_64 relocation record by itself before the | |
1218 | _REL32/_64 record as well, such that the addend is read in as | |
1219 | a 64-bit value (REL32 is a 32-bit relocation, after all). | |
1220 | However, since none of the existing ELF64 SCORE dynamic | |
1221 | loaders seems to care, we don't waste space with these | |
1222 | artificial relocations. If this turns out to not be true, | |
1223 | score_elf_allocate_dynamic_relocations() should be tweaked so | |
1224 | as to make room for a pair of dynamic relocations per | |
1225 | invocation if ABI_64_P, and here we should generate an | |
1226 | additional relocation record with R_SCORE_64 by itself for a | |
1227 | NULL symbol before this relocation record. */ | |
1228 | outrel[1].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1229 | outrel[2].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1230 | ||
1231 | /* Adjust the output offset of the relocation to reference the | |
1232 | correct location in the output file. */ | |
1233 | outrel[0].r_offset += (input_section->output_section->vma | |
07d6d2b8 | 1234 | + input_section->output_offset); |
c3b7224a | 1235 | outrel[1].r_offset += (input_section->output_section->vma |
07d6d2b8 | 1236 | + input_section->output_offset); |
c3b7224a | 1237 | outrel[2].r_offset += (input_section->output_section->vma |
07d6d2b8 | 1238 | + input_section->output_offset); |
c3b7224a NC |
1239 | |
1240 | /* Put the relocation back out. We have to use the special | |
1241 | relocation outputter in the 64-bit case since the 64-bit | |
1242 | relocation format is non-standard. */ | |
1243 | bfd_elf32_swap_reloc_out | |
1244 | (output_bfd, &outrel[0], | |
1245 | (sreloc->contents + sreloc->reloc_count * sizeof (Elf32_External_Rel))); | |
1246 | ||
1247 | /* We've now added another relocation. */ | |
1248 | ++sreloc->reloc_count; | |
1249 | ||
1250 | /* Make sure the output section is writable. The dynamic linker | |
1251 | will be writing to it. */ | |
1252 | elf_section_data (input_section->output_section)->this_hdr.sh_flags |= SHF_WRITE; | |
1253 | ||
0a1b45a2 | 1254 | return true; |
c3b7224a NC |
1255 | } |
1256 | ||
0a1b45a2 | 1257 | static bool |
c3b7224a | 1258 | score_elf_create_got_section (bfd *abfd, |
07d6d2b8 | 1259 | struct bfd_link_info *info, |
0a1b45a2 | 1260 | bool maybe_exclude) |
c3b7224a NC |
1261 | { |
1262 | flagword flags; | |
1263 | asection *s; | |
1264 | struct elf_link_hash_entry *h; | |
1265 | struct bfd_link_hash_entry *bh; | |
1266 | struct score_got_info *g; | |
986f0783 | 1267 | size_t amt; |
c3b7224a NC |
1268 | |
1269 | /* This function may be called more than once. */ | |
0a1b45a2 | 1270 | s = score_elf_got_section (abfd, true); |
c3b7224a NC |
1271 | if (s) |
1272 | { | |
1273 | if (! maybe_exclude) | |
07d6d2b8 | 1274 | s->flags &= ~SEC_EXCLUDE; |
0a1b45a2 | 1275 | return true; |
c3b7224a NC |
1276 | } |
1277 | ||
1278 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1279 | ||
1280 | if (maybe_exclude) | |
1281 | flags |= SEC_EXCLUDE; | |
1282 | ||
1283 | /* We have to use an alignment of 2**4 here because this is hardcoded | |
1284 | in the function stub generation and in the linker script. */ | |
3d4d4302 | 1285 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
ce558b89 AM |
1286 | elf_hash_table (info)->sgot = s; |
1287 | if (s == NULL | |
fd361982 | 1288 | || !bfd_set_section_alignment (s, 4)) |
0a1b45a2 | 1289 | return false; |
c3b7224a NC |
1290 | |
1291 | /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the | |
1292 | linker script because we don't want to define the symbol if we | |
1293 | are not creating a global offset table. */ | |
1294 | bh = NULL; | |
1295 | if (! (_bfd_generic_link_add_one_symbol | |
07d6d2b8 | 1296 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, |
0a1b45a2 AM |
1297 | 0, NULL, false, get_elf_backend_data (abfd)->collect, &bh))) |
1298 | return false; | |
c3b7224a NC |
1299 | |
1300 | h = (struct elf_link_hash_entry *) bh; | |
1301 | h->non_elf = 0; | |
1302 | h->def_regular = 1; | |
1303 | h->type = STT_OBJECT; | |
ce558b89 | 1304 | elf_hash_table (info)->hgot = h; |
c3b7224a | 1305 | |
0e1862bb L |
1306 | if (bfd_link_pic (info) |
1307 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 1308 | return false; |
c3b7224a NC |
1309 | |
1310 | amt = sizeof (struct score_got_info); | |
1311 | g = bfd_alloc (abfd, amt); | |
1312 | if (g == NULL) | |
0a1b45a2 | 1313 | return false; |
c3b7224a NC |
1314 | |
1315 | g->global_gotsym = NULL; | |
1316 | g->global_gotno = 0; | |
1317 | ||
1318 | g->local_gotno = SCORE_RESERVED_GOTNO; | |
1319 | g->assigned_gotno = SCORE_RESERVED_GOTNO; | |
1320 | g->next = NULL; | |
1321 | ||
1322 | g->got_entries = htab_try_create (1, score_elf_got_entry_hash, | |
07d6d2b8 | 1323 | score_elf_got_entry_eq, NULL); |
c3b7224a | 1324 | if (g->got_entries == NULL) |
0a1b45a2 | 1325 | return false; |
c3b7224a NC |
1326 | score_elf_section_data (s)->u.got_info = g; |
1327 | score_elf_section_data (s)->elf.this_hdr.sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
1328 | ||
0a1b45a2 | 1329 | return true; |
c3b7224a NC |
1330 | } |
1331 | ||
1332 | /* Calculate the %high function. */ | |
1333 | ||
1334 | static bfd_vma | |
1335 | score_elf_high (bfd_vma value) | |
1336 | { | |
1337 | return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff; | |
1338 | } | |
1339 | ||
1340 | /* Create a local GOT entry for VALUE. Return the index of the entry, | |
1341 | or -1 if it could not be created. */ | |
1342 | ||
1343 | static struct score_got_entry * | |
1344 | score_elf_create_local_got_entry (bfd *abfd, | |
07d6d2b8 AM |
1345 | bfd *ibfd ATTRIBUTE_UNUSED, |
1346 | struct score_got_info *gg, | |
1347 | asection *sgot, bfd_vma value, | |
1348 | unsigned long r_symndx ATTRIBUTE_UNUSED, | |
1349 | struct score_elf_link_hash_entry *h ATTRIBUTE_UNUSED, | |
1350 | int r_type ATTRIBUTE_UNUSED) | |
c3b7224a NC |
1351 | { |
1352 | struct score_got_entry entry, **loc; | |
1353 | struct score_got_info *g; | |
1354 | ||
1355 | entry.abfd = NULL; | |
1356 | entry.symndx = -1; | |
1357 | entry.d.address = value; | |
1358 | ||
1359 | g = gg; | |
1360 | loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT); | |
1361 | if (*loc) | |
1362 | return *loc; | |
1363 | ||
1364 | entry.gotidx = SCORE_ELF_GOT_SIZE (abfd) * g->assigned_gotno++; | |
1365 | ||
1366 | *loc = bfd_alloc (abfd, sizeof entry); | |
1367 | ||
1368 | if (! *loc) | |
1369 | return NULL; | |
1370 | ||
1371 | memcpy (*loc, &entry, sizeof entry); | |
1372 | ||
1373 | if (g->assigned_gotno >= g->local_gotno) | |
1374 | { | |
1375 | (*loc)->gotidx = -1; | |
1376 | /* We didn't allocate enough space in the GOT. */ | |
4eca0228 | 1377 | _bfd_error_handler |
07d6d2b8 | 1378 | (_("not enough GOT space for local GOT entries")); |
c3b7224a NC |
1379 | bfd_set_error (bfd_error_bad_value); |
1380 | return NULL; | |
1381 | } | |
1382 | ||
1383 | bfd_put_32 (abfd, value, (sgot->contents + entry.gotidx)); | |
1384 | ||
1385 | return *loc; | |
1386 | } | |
1387 | ||
1388 | /* Find a GOT entry whose higher-order 16 bits are the same as those | |
1389 | for value. Return the index into the GOT for this entry. */ | |
1390 | ||
1391 | static bfd_vma | |
1392 | score_elf_got16_entry (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
0a1b45a2 | 1393 | bfd_vma value, bool external) |
c3b7224a NC |
1394 | { |
1395 | asection *sgot; | |
1396 | struct score_got_info *g; | |
1397 | struct score_got_entry *entry; | |
1398 | ||
1399 | if (!external) | |
1400 | { | |
1401 | /* Although the ABI says that it is "the high-order 16 bits" that we | |
07d6d2b8 AM |
1402 | want, it is really the %high value. The complete value is |
1403 | calculated with a `addiu' of a LO16 relocation, just as with a | |
1404 | HI16/LO16 pair. */ | |
c3b7224a NC |
1405 | value = score_elf_high (value) << 16; |
1406 | } | |
1407 | ||
1408 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1409 | ||
1410 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, 0, NULL, | |
07d6d2b8 | 1411 | R_SCORE_GOT15); |
c3b7224a NC |
1412 | if (entry) |
1413 | return entry->gotidx; | |
1414 | else | |
1415 | return MINUS_ONE; | |
1416 | } | |
1417 | ||
1418 | void | |
1419 | s7_bfd_score_elf_hide_symbol (struct bfd_link_info *info, | |
07d6d2b8 | 1420 | struct elf_link_hash_entry *entry, |
0a1b45a2 | 1421 | bool force_local) |
c3b7224a NC |
1422 | { |
1423 | bfd *dynobj; | |
1424 | asection *got; | |
1425 | struct score_got_info *g; | |
1426 | struct score_elf_link_hash_entry *h; | |
1427 | ||
1428 | h = (struct score_elf_link_hash_entry *) entry; | |
1429 | if (h->forced_local) | |
1430 | return; | |
0a1b45a2 | 1431 | h->forced_local = true; |
c3b7224a NC |
1432 | |
1433 | dynobj = elf_hash_table (info)->dynobj; | |
1434 | if (dynobj != NULL && force_local) | |
1435 | { | |
0a1b45a2 | 1436 | got = score_elf_got_section (dynobj, false); |
c3b7224a | 1437 | if (got == NULL) |
07d6d2b8 | 1438 | return; |
c3b7224a NC |
1439 | g = score_elf_section_data (got)->u.got_info; |
1440 | ||
1441 | if (g->next) | |
07d6d2b8 AM |
1442 | { |
1443 | struct score_got_entry e; | |
1444 | struct score_got_info *gg = g; | |
1445 | ||
1446 | /* Since we're turning what used to be a global symbol into a | |
1447 | local one, bump up the number of local entries of each GOT | |
1448 | that had an entry for it. This will automatically decrease | |
1449 | the number of global entries, since global_gotno is actually | |
1450 | the upper limit of global entries. */ | |
1451 | e.abfd = dynobj; | |
1452 | e.symndx = -1; | |
1453 | e.d.h = h; | |
1454 | ||
1455 | for (g = g->next; g != gg; g = g->next) | |
1456 | if (htab_find (g->got_entries, &e)) | |
1457 | { | |
1458 | BFD_ASSERT (g->global_gotno > 0); | |
1459 | g->local_gotno++; | |
1460 | g->global_gotno--; | |
1461 | } | |
1462 | ||
1463 | /* If this was a global symbol forced into the primary GOT, we | |
1464 | no longer need an entry for it. We can't release the entry | |
1465 | at this point, but we must at least stop counting it as one | |
1466 | of the symbols that required a forced got entry. */ | |
1467 | if (h->root.got.offset == 2) | |
1468 | { | |
1469 | BFD_ASSERT (gg->assigned_gotno > 0); | |
1470 | gg->assigned_gotno--; | |
1471 | } | |
1472 | } | |
c3b7224a | 1473 | else if (g->global_gotno == 0 && g->global_gotsym == NULL) |
07d6d2b8 AM |
1474 | /* If we haven't got through GOT allocation yet, just bump up the |
1475 | number of local entries, as this symbol won't be counted as | |
1476 | global. */ | |
1477 | g->local_gotno++; | |
c3b7224a | 1478 | else if (h->root.got.offset == 1) |
07d6d2b8 AM |
1479 | { |
1480 | /* If we're past non-multi-GOT allocation and this symbol had | |
1481 | been marked for a global got entry, give it a local entry | |
1482 | instead. */ | |
1483 | BFD_ASSERT (g->global_gotno > 0); | |
1484 | g->local_gotno++; | |
1485 | g->global_gotno--; | |
1486 | } | |
c3b7224a NC |
1487 | } |
1488 | ||
1489 | _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local); | |
1490 | } | |
1491 | ||
1492 | /* If H is a symbol that needs a global GOT entry, but has a dynamic | |
1493 | symbol table index lower than any we've seen to date, record it for | |
1494 | posterity. */ | |
1495 | ||
0a1b45a2 | 1496 | static bool |
c3b7224a | 1497 | score_elf_record_global_got_symbol (struct elf_link_hash_entry *h, |
07d6d2b8 AM |
1498 | bfd *abfd, |
1499 | struct bfd_link_info *info, | |
1500 | struct score_got_info *g) | |
c3b7224a NC |
1501 | { |
1502 | struct score_got_entry entry, **loc; | |
1503 | ||
1504 | /* A global symbol in the GOT must also be in the dynamic symbol table. */ | |
1505 | if (h->dynindx == -1) | |
1506 | { | |
1507 | switch (ELF_ST_VISIBILITY (h->other)) | |
07d6d2b8 AM |
1508 | { |
1509 | case STV_INTERNAL: | |
1510 | case STV_HIDDEN: | |
0a1b45a2 | 1511 | s7_bfd_score_elf_hide_symbol (info, h, true); |
07d6d2b8 AM |
1512 | break; |
1513 | } | |
c3b7224a | 1514 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
0a1b45a2 | 1515 | return false; |
c3b7224a NC |
1516 | } |
1517 | ||
1518 | entry.abfd = abfd; | |
1519 | entry.symndx = -1; | |
1520 | entry.d.h = (struct score_elf_link_hash_entry *) h; | |
1521 | ||
1522 | loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT); | |
1523 | ||
1524 | /* If we've already marked this entry as needing GOT space, we don't | |
1525 | need to do it again. */ | |
1526 | if (*loc) | |
0a1b45a2 | 1527 | return true; |
c3b7224a NC |
1528 | |
1529 | *loc = bfd_alloc (abfd, sizeof entry); | |
1530 | if (! *loc) | |
0a1b45a2 | 1531 | return false; |
c3b7224a NC |
1532 | |
1533 | entry.gotidx = -1; | |
1534 | ||
1535 | memcpy (*loc, &entry, sizeof (entry)); | |
1536 | ||
1537 | if (h->got.offset != MINUS_ONE) | |
0a1b45a2 | 1538 | return true; |
c3b7224a NC |
1539 | |
1540 | /* By setting this to a value other than -1, we are indicating that | |
1541 | there needs to be a GOT entry for H. Avoid using zero, as the | |
1542 | generic ELF copy_indirect_symbol tests for <= 0. */ | |
1543 | h->got.offset = 1; | |
1544 | ||
0a1b45a2 | 1545 | return true; |
c3b7224a NC |
1546 | } |
1547 | ||
1548 | /* Reserve space in G for a GOT entry containing the value of symbol | |
1549 | SYMNDX in input bfd ABDF, plus ADDEND. */ | |
1550 | ||
0a1b45a2 | 1551 | static bool |
c3b7224a | 1552 | score_elf_record_local_got_symbol (bfd *abfd, |
07d6d2b8 AM |
1553 | long symndx, |
1554 | bfd_vma addend, | |
1555 | struct score_got_info *g) | |
c3b7224a NC |
1556 | { |
1557 | struct score_got_entry entry, **loc; | |
1558 | ||
1559 | entry.abfd = abfd; | |
1560 | entry.symndx = symndx; | |
1561 | entry.d.addend = addend; | |
1562 | loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT); | |
1563 | ||
1564 | if (*loc) | |
0a1b45a2 | 1565 | return true; |
c3b7224a NC |
1566 | |
1567 | entry.gotidx = g->local_gotno++; | |
1568 | ||
1569 | *loc = bfd_alloc (abfd, sizeof(entry)); | |
1570 | if (! *loc) | |
0a1b45a2 | 1571 | return false; |
c3b7224a NC |
1572 | |
1573 | memcpy (*loc, &entry, sizeof (entry)); | |
1574 | ||
0a1b45a2 | 1575 | return true; |
c3b7224a NC |
1576 | } |
1577 | ||
1578 | /* Returns the GOT offset at which the indicated address can be found. | |
1579 | If there is not yet a GOT entry for this value, create one. | |
1580 | Returns -1 if no satisfactory GOT offset can be found. */ | |
1581 | ||
1582 | static bfd_vma | |
1583 | score_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
07d6d2b8 AM |
1584 | bfd_vma value, unsigned long r_symndx, |
1585 | struct score_elf_link_hash_entry *h, int r_type) | |
c3b7224a NC |
1586 | { |
1587 | asection *sgot; | |
1588 | struct score_got_info *g; | |
1589 | struct score_got_entry *entry; | |
1590 | ||
1591 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1592 | ||
1593 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, | |
07d6d2b8 | 1594 | r_symndx, h, r_type); |
c3b7224a NC |
1595 | if (!entry) |
1596 | return MINUS_ONE; | |
1597 | ||
1598 | else | |
1599 | return entry->gotidx; | |
1600 | } | |
1601 | ||
1602 | /* Returns the GOT index for the global symbol indicated by H. */ | |
1603 | ||
1604 | static bfd_vma | |
1605 | score_elf_global_got_index (bfd *abfd, struct elf_link_hash_entry *h) | |
1606 | { | |
91d6fa6a | 1607 | bfd_vma got_index; |
c3b7224a NC |
1608 | asection *sgot; |
1609 | struct score_got_info *g; | |
1610 | long global_got_dynindx = 0; | |
1611 | ||
1612 | g = score_elf_got_info (abfd, &sgot); | |
1613 | if (g->global_gotsym != NULL) | |
1614 | global_got_dynindx = g->global_gotsym->dynindx; | |
1615 | ||
1616 | /* Once we determine the global GOT entry with the lowest dynamic | |
1617 | symbol table index, we must put all dynamic symbols with greater | |
1618 | indices into the GOT. That makes it easy to calculate the GOT | |
1619 | offset. */ | |
1620 | BFD_ASSERT (h->dynindx >= global_got_dynindx); | |
91d6fa6a NC |
1621 | got_index = ((h->dynindx - global_got_dynindx + g->local_gotno) * SCORE_ELF_GOT_SIZE (abfd)); |
1622 | BFD_ASSERT (got_index < sgot->size); | |
c3b7224a | 1623 | |
91d6fa6a | 1624 | return got_index; |
c3b7224a NC |
1625 | } |
1626 | ||
1627 | /* Returns the offset for the entry at the INDEXth position in the GOT. */ | |
1628 | ||
1629 | static bfd_vma | |
91d6fa6a NC |
1630 | score_elf_got_offset_from_index (bfd *dynobj, |
1631 | bfd *output_bfd, | |
07d6d2b8 | 1632 | bfd *input_bfd ATTRIBUTE_UNUSED, |
91d6fa6a | 1633 | bfd_vma got_index) |
c3b7224a NC |
1634 | { |
1635 | asection *sgot; | |
1636 | bfd_vma gp; | |
c3b7224a | 1637 | |
c7e2358a | 1638 | score_elf_got_info (dynobj, &sgot); |
c3b7224a NC |
1639 | gp = _bfd_get_gp_value (output_bfd); |
1640 | ||
91d6fa6a | 1641 | return sgot->output_section->vma + sgot->output_offset + got_index - gp; |
c3b7224a NC |
1642 | } |
1643 | ||
1644 | /* Follow indirect and warning hash entries so that each got entry | |
1645 | points to the final symbol definition. P must point to a pointer | |
1646 | to the hash table we're traversing. Since this traversal may | |
1647 | modify the hash table, we set this pointer to NULL to indicate | |
1648 | we've made a potentially-destructive change to the hash table, so | |
1649 | the traversal must be restarted. */ | |
1650 | ||
1651 | static int | |
1652 | score_elf_resolve_final_got_entry (void **entryp, void *p) | |
1653 | { | |
1654 | struct score_got_entry *entry = (struct score_got_entry *) *entryp; | |
1655 | htab_t got_entries = *(htab_t *) p; | |
1656 | ||
1657 | if (entry->abfd != NULL && entry->symndx == -1) | |
1658 | { | |
1659 | struct score_elf_link_hash_entry *h = entry->d.h; | |
1660 | ||
1661 | while (h->root.root.type == bfd_link_hash_indirect | |
07d6d2b8 AM |
1662 | || h->root.root.type == bfd_link_hash_warning) |
1663 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
c3b7224a NC |
1664 | |
1665 | if (entry->d.h == h) | |
07d6d2b8 | 1666 | return 1; |
c3b7224a NC |
1667 | |
1668 | entry->d.h = h; | |
1669 | ||
1670 | /* If we can't find this entry with the new bfd hash, re-insert | |
07d6d2b8 | 1671 | it, and get the traversal restarted. */ |
c3b7224a | 1672 | if (! htab_find (got_entries, entry)) |
07d6d2b8 AM |
1673 | { |
1674 | htab_clear_slot (got_entries, entryp); | |
1675 | entryp = htab_find_slot (got_entries, entry, INSERT); | |
1676 | if (! *entryp) | |
1677 | *entryp = entry; | |
1678 | /* Abort the traversal, since the whole table may have | |
1679 | moved, and leave it up to the parent to restart the | |
1680 | process. */ | |
1681 | *(htab_t *) p = NULL; | |
1682 | return 0; | |
1683 | } | |
c3b7224a | 1684 | /* We might want to decrement the global_gotno count, but it's |
07d6d2b8 | 1685 | either too early or too late for that at this point. */ |
c3b7224a NC |
1686 | } |
1687 | ||
1688 | return 1; | |
1689 | } | |
1690 | ||
1691 | /* Turn indirect got entries in a got_entries table into their final locations. */ | |
1692 | ||
1693 | static void | |
1694 | score_elf_resolve_final_got_entries (struct score_got_info *g) | |
1695 | { | |
1696 | htab_t got_entries; | |
1697 | ||
1698 | do | |
1699 | { | |
1700 | got_entries = g->got_entries; | |
1701 | ||
1702 | htab_traverse (got_entries, | |
07d6d2b8 AM |
1703 | score_elf_resolve_final_got_entry, |
1704 | &got_entries); | |
c3b7224a NC |
1705 | } |
1706 | while (got_entries == NULL); | |
1707 | } | |
1708 | ||
1709 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. for -r */ | |
1710 | ||
1711 | static void | |
1712 | score_elf_add_to_rel (bfd *abfd, | |
07d6d2b8 AM |
1713 | bfd_byte *address, |
1714 | reloc_howto_type *howto, | |
1715 | bfd_signed_vma increment) | |
c3b7224a NC |
1716 | { |
1717 | bfd_signed_vma addend; | |
1718 | bfd_vma contents; | |
1719 | unsigned long offset; | |
1720 | unsigned long r_type = howto->type; | |
1721 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
1722 | ||
1723 | contents = bfd_get_32 (abfd, address); | |
1724 | /* Get the (signed) value from the instruction. */ | |
1725 | addend = contents & howto->src_mask; | |
1726 | if (addend & ((howto->src_mask + 1) >> 1)) | |
1727 | { | |
1728 | bfd_signed_vma mask; | |
1729 | ||
1730 | mask = -1; | |
1731 | mask &= ~howto->src_mask; | |
1732 | addend |= mask; | |
1733 | } | |
1734 | /* Add in the increment, (which is a byte value). */ | |
1735 | switch (r_type) | |
1736 | { | |
1737 | case R_SCORE_PC19: | |
1738 | offset = | |
07d6d2b8 | 1739 | (((contents & howto->src_mask) & 0x3ff0000) >> 6) | ((contents & howto->src_mask) & 0x3ff); |
c3b7224a NC |
1740 | offset += increment; |
1741 | contents = | |
07d6d2b8 AM |
1742 | (contents & ~howto-> |
1743 | src_mask) | (((offset << 6) & howto->src_mask) & 0x3ff0000) | (offset & 0x3ff); | |
c3b7224a NC |
1744 | bfd_put_32 (abfd, contents, address); |
1745 | break; | |
1746 | case R_SCORE_HI16: | |
1747 | break; | |
1748 | case R_SCORE_LO16: | |
1749 | hi16_addend = bfd_get_32 (abfd, address - 4); | |
1750 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; | |
1751 | offset = ((((contents >> 16) & 0x3) << 15) | (contents & 0x7fff)) >> 1; | |
1752 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
1753 | uvalue = increment + offset; | |
1754 | hi16_offset = (uvalue >> 16) << 1; | |
1755 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
07d6d2b8 | 1756 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); |
c3b7224a NC |
1757 | bfd_put_32 (abfd, hi16_value, address - 4); |
1758 | offset = (uvalue & 0xffff) << 1; | |
1759 | contents = (contents & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
1760 | bfd_put_32 (abfd, contents, address); | |
1761 | break; | |
1762 | case R_SCORE_24: | |
1763 | offset = | |
07d6d2b8 | 1764 | (((contents & howto->src_mask) >> 1) & 0x1ff8000) | ((contents & howto->src_mask) & 0x7fff); |
c3b7224a NC |
1765 | offset += increment; |
1766 | contents = | |
07d6d2b8 AM |
1767 | (contents & ~howto-> |
1768 | src_mask) | (((offset << 1) & howto->src_mask) & 0x3ff0000) | (offset & 0x7fff); | |
c3b7224a NC |
1769 | bfd_put_32 (abfd, contents, address); |
1770 | break; | |
1771 | case R_SCORE16_11: | |
1772 | ||
1773 | contents = bfd_get_16 (abfd, address); | |
1774 | offset = contents & howto->src_mask; | |
1775 | offset += increment; | |
1776 | contents = (contents & ~howto->src_mask) | (offset & howto->src_mask); | |
1777 | bfd_put_16 (abfd, contents, address); | |
1778 | ||
1779 | break; | |
1780 | case R_SCORE16_PC8: | |
1781 | ||
1782 | contents = bfd_get_16 (abfd, address); | |
1783 | offset = (contents & howto->src_mask) + ((increment >> 1) & 0xff); | |
1784 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1785 | bfd_put_16 (abfd, contents, address); | |
1786 | ||
1787 | break; | |
1788 | case R_SCORE_GOT15: | |
1789 | case R_SCORE_GOT_LO16: | |
1790 | break; | |
1791 | ||
1792 | default: | |
1793 | addend += increment; | |
1794 | contents = (contents & ~howto->dst_mask) | (addend & howto->dst_mask); | |
1795 | bfd_put_32 (abfd, contents, address); | |
1796 | break; | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | /* Perform a relocation as part of a final link. */ | |
1801 | ||
1802 | static bfd_reloc_status_type | |
1803 | score_elf_final_link_relocate (reloc_howto_type *howto, | |
07d6d2b8 AM |
1804 | bfd *input_bfd, |
1805 | bfd *output_bfd, | |
1806 | asection *input_section, | |
1807 | bfd_byte *contents, | |
1808 | Elf_Internal_Rela *rel, | |
1809 | Elf_Internal_Rela *relocs, | |
1810 | bfd_vma symbol, | |
1811 | struct bfd_link_info *info, | |
1812 | const char *sym_name ATTRIBUTE_UNUSED, | |
1813 | int sym_flags ATTRIBUTE_UNUSED, | |
1814 | struct score_elf_link_hash_entry *h, | |
1815 | Elf_Internal_Sym *local_syms, | |
1816 | asection **local_sections, | |
0a1b45a2 | 1817 | bool gp_disp_p) |
c3b7224a NC |
1818 | { |
1819 | unsigned long r_type; | |
1820 | unsigned long r_symndx; | |
1821 | bfd_byte *hit_data = contents + rel->r_offset; | |
1822 | bfd_vma addend; | |
1823 | /* The final GP value to be used for the relocatable, executable, or | |
1824 | shared object file being produced. */ | |
1825 | bfd_vma gp = MINUS_ONE; | |
1826 | /* The place (section offset or address) of the storage unit being relocated. */ | |
1827 | bfd_vma rel_addr; | |
1828 | /* The value of GP used to create the relocatable object. */ | |
1829 | bfd_vma gp0 = MINUS_ONE; | |
1830 | /* The offset into the global offset table at which the address of the relocation entry | |
1831 | symbol, adjusted by the addend, resides during execution. */ | |
1832 | bfd_vma g = MINUS_ONE; | |
1833 | /* TRUE if the symbol referred to by this relocation is a local symbol. */ | |
0a1b45a2 | 1834 | bool local_p; |
c3b7224a NC |
1835 | /* The eventual value we will relocate. */ |
1836 | bfd_vma value = symbol; | |
1837 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue, offset, abs_value = 0; | |
1838 | ||
1839 | Elf_Internal_Sym *sym = 0; | |
1840 | asection *sec = NULL; | |
0a1b45a2 | 1841 | bool merge_p = 0; |
c3b7224a NC |
1842 | |
1843 | ||
1844 | if (elf_gp (output_bfd) == 0) | |
1845 | { | |
1846 | struct bfd_link_hash_entry *bh; | |
1847 | asection *o; | |
1848 | ||
1849 | bh = bfd_link_hash_lookup (info->hash, "_gp", 0, 0, 1); | |
1850 | if (bh != NULL && bh->type == bfd_link_hash_defined) | |
1a9ccd70 NC |
1851 | { |
1852 | elf_gp (output_bfd) = (bh->u.def.value | |
1853 | + bh->u.def.section->output_offset); | |
1854 | if (bh->u.def.section->output_section) | |
1855 | elf_gp (output_bfd) += bh->u.def.section->output_section->vma; | |
1856 | } | |
0e1862bb | 1857 | else if (bfd_link_relocatable (info)) |
07d6d2b8 AM |
1858 | { |
1859 | bfd_vma lo = -1; | |
1860 | ||
1861 | /* Find the GP-relative section with the lowest offset. */ | |
1862 | for (o = output_bfd->sections; o != NULL; o = o->next) | |
1863 | if (o->vma < lo) | |
1864 | lo = o->vma; | |
1865 | /* And calculate GP relative to that. */ | |
1866 | elf_gp (output_bfd) = lo + ELF_SCORE_GP_OFFSET (input_bfd); | |
1867 | } | |
c3b7224a | 1868 | else |
07d6d2b8 AM |
1869 | { |
1870 | /* If the relocate_section function needs to do a reloc | |
1871 | involving the GP value, it should make a reloc_dangerous | |
1872 | callback to warn that GP is not defined. */ | |
1873 | } | |
c3b7224a NC |
1874 | } |
1875 | ||
1876 | /* Parse the relocation. */ | |
1877 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1878 | r_type = ELF32_R_TYPE (rel->r_info); | |
1879 | rel_addr = (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
1880 | ||
1881 | /* For hidden symbol. */ | |
0a1b45a2 | 1882 | local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, false); |
c3b7224a NC |
1883 | if (local_p) |
1884 | { | |
1885 | sym = local_syms + r_symndx; | |
1886 | sec = local_sections[r_symndx]; | |
1887 | ||
1888 | symbol = sec->output_section->vma + sec->output_offset; | |
1889 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION | |
07d6d2b8 AM |
1890 | || (sec->flags & SEC_MERGE)) |
1891 | symbol += sym->st_value; | |
c3b7224a | 1892 | if ((sec->flags & SEC_MERGE) |
07d6d2b8 AM |
1893 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
1894 | merge_p = 1; | |
c3b7224a NC |
1895 | } |
1896 | ||
1897 | if (r_type == R_SCORE_GOT15) | |
1898 | { | |
1899 | const Elf_Internal_Rela *relend; | |
1900 | const Elf_Internal_Rela *lo16_rel; | |
c3b7224a NC |
1901 | bfd_vma lo_value = 0; |
1902 | ||
056bafd4 | 1903 | relend = relocs + input_section->reloc_count; |
c3b7224a NC |
1904 | lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend); |
1905 | if ((local_p) && (lo16_rel != NULL)) | |
07d6d2b8 AM |
1906 | { |
1907 | bfd_vma tmp = 0; | |
1908 | tmp = bfd_get_32 (input_bfd, contents + lo16_rel->r_offset); | |
1909 | lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1); | |
1910 | if (merge_p) | |
1911 | { | |
1912 | asection *msec = sec; | |
1913 | lo_value = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, lo_value); | |
1914 | lo_value -= symbol; | |
1915 | lo_value += msec->output_section->vma + msec->output_offset; | |
1916 | } | |
1917 | } | |
c3b7224a NC |
1918 | addend = lo_value; |
1919 | } | |
1920 | else | |
1921 | { | |
1922 | addend = (bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask; | |
1923 | } | |
1924 | ||
1925 | /* Figure out the value of the symbol. */ | |
1926 | if (local_p && !merge_p) | |
1927 | { | |
1928 | if (r_type == R_SCORE_GOT15) | |
07d6d2b8 AM |
1929 | { |
1930 | const Elf_Internal_Rela *relend; | |
1931 | const Elf_Internal_Rela *lo16_rel; | |
1932 | bfd_vma lo_value = 0; | |
1933 | ||
1934 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1935 | addend = value & 0x7fff; | |
1936 | if ((addend & 0x4000) == 0x4000) | |
1937 | addend |= 0xffffc000; | |
1938 | ||
1939 | relend = relocs + input_section->reloc_count; | |
1940 | lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend); | |
1941 | if ((local_p) && (lo16_rel != NULL)) | |
1942 | { | |
1943 | bfd_vma tmp = 0; | |
1944 | tmp = bfd_get_32 (input_bfd, contents + lo16_rel->r_offset); | |
1945 | lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1); | |
1946 | } | |
1947 | ||
1948 | addend <<= 16; | |
1949 | addend += lo_value; | |
1950 | } | |
c3b7224a NC |
1951 | } |
1952 | ||
0a1b45a2 | 1953 | local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, true); |
c3b7224a NC |
1954 | |
1955 | /* If we haven't already determined the GOT offset, or the GP value, | |
1956 | and we're going to need it, get it now. */ | |
1957 | switch (r_type) | |
1958 | { | |
1959 | case R_SCORE_CALL15: | |
1960 | case R_SCORE_GOT15: | |
1961 | if (!local_p) | |
07d6d2b8 AM |
1962 | { |
1963 | g = score_elf_global_got_index (elf_hash_table (info)->dynobj, | |
1964 | (struct elf_link_hash_entry *) h); | |
1965 | if ((! elf_hash_table(info)->dynamic_sections_created | |
1966 | || (bfd_link_pic (info) | |
1967 | && (info->symbolic || h->root.dynindx == -1) | |
1968 | && h->root.def_regular))) | |
1969 | { | |
1970 | /* This is a static link or a -Bsymbolic link. The | |
1971 | symbol is defined locally, or was forced to be local. | |
1972 | We must initialize this entry in the GOT. */ | |
1973 | bfd *tmpbfd = elf_hash_table (info)->dynobj; | |
0a1b45a2 | 1974 | asection *sgot = score_elf_got_section (tmpbfd, false); |
07d6d2b8 AM |
1975 | bfd_put_32 (tmpbfd, value, sgot->contents + g); |
1976 | } | |
1977 | } | |
c3b7224a | 1978 | else if (r_type == R_SCORE_GOT15 || r_type == R_SCORE_CALL15) |
07d6d2b8 AM |
1979 | { |
1980 | /* There's no need to create a local GOT entry here; the | |
1981 | calculation for a local GOT15 entry does not involve G. */ | |
1982 | ; | |
1983 | } | |
c3b7224a | 1984 | else |
07d6d2b8 AM |
1985 | { |
1986 | g = score_elf_local_got_index (output_bfd, input_bfd, info, | |
1987 | symbol + addend, r_symndx, h, r_type); | |
1988 | if (g == MINUS_ONE) | |
1989 | return bfd_reloc_outofrange; | |
1990 | } | |
c3b7224a NC |
1991 | |
1992 | /* Convert GOT indices to actual offsets. */ | |
1993 | g = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
07d6d2b8 | 1994 | output_bfd, input_bfd, g); |
c3b7224a NC |
1995 | break; |
1996 | ||
1997 | case R_SCORE_HI16: | |
1998 | case R_SCORE_LO16: | |
1999 | case R_SCORE_GPREL32: | |
2000 | gp0 = _bfd_get_gp_value (input_bfd); | |
2001 | gp = _bfd_get_gp_value (output_bfd); | |
2002 | break; | |
2003 | ||
2004 | case R_SCORE_GP15: | |
2005 | gp = _bfd_get_gp_value (output_bfd); | |
2006 | ||
2007 | default: | |
2008 | break; | |
2009 | } | |
2010 | ||
2011 | switch (r_type) | |
2012 | { | |
2013 | case R_SCORE_NONE: | |
2014 | return bfd_reloc_ok; | |
2015 | ||
2016 | case R_SCORE_ABS32: | |
2017 | case R_SCORE_REL32: | |
0e1862bb | 2018 | if ((bfd_link_pic (info) |
07d6d2b8 AM |
2019 | || (elf_hash_table (info)->dynamic_sections_created |
2020 | && h != NULL | |
2021 | && h->root.def_dynamic | |
2022 | && !h->root.def_regular)) | |
2023 | && r_symndx != STN_UNDEF | |
2024 | && (input_section->flags & SEC_ALLOC) != 0) | |
2025 | { | |
2026 | /* If we're creating a shared library, or this relocation is against a symbol | |
2027 | in a shared library, then we can't know where the symbol will end up. | |
2028 | So, we create a relocation record in the output, and leave the job up | |
2029 | to the dynamic linker. */ | |
2030 | value = addend; | |
2031 | if (!score_elf_create_dynamic_relocation (output_bfd, info, rel, h, | |
2032 | symbol, &value, | |
2033 | input_section)) | |
2034 | return bfd_reloc_undefined; | |
2035 | } | |
cf35638d | 2036 | else if (r_symndx == STN_UNDEF) |
07d6d2b8 AM |
2037 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols |
2038 | from removed linkonce sections, or sections discarded by | |
2039 | a linker script. */ | |
2040 | value = 0; | |
c3b7224a | 2041 | else |
07d6d2b8 AM |
2042 | { |
2043 | if (r_type != R_SCORE_REL32) | |
2044 | value = symbol + addend; | |
2045 | else | |
2046 | value = addend; | |
2047 | } | |
c3b7224a NC |
2048 | value &= howto->dst_mask; |
2049 | bfd_put_32 (input_bfd, value, hit_data); | |
2050 | return bfd_reloc_ok; | |
2051 | ||
2052 | case R_SCORE_ABS16: | |
2053 | value += addend; | |
2054 | if ((long) value > 0x7fff || (long) value < -0x8000) | |
07d6d2b8 | 2055 | return bfd_reloc_overflow; |
c3b7224a NC |
2056 | bfd_put_16 (input_bfd, value, hit_data); |
2057 | return bfd_reloc_ok; | |
2058 | ||
2059 | case R_SCORE_24: | |
2060 | addend = bfd_get_32 (input_bfd, hit_data); | |
2061 | offset = (((addend & howto->src_mask) >> 1) & 0x1ff8000) | ((addend & howto->src_mask) & 0x7fff); | |
2062 | if ((offset & 0x1000000) != 0) | |
07d6d2b8 | 2063 | offset |= 0xfe000000; |
c3b7224a | 2064 | value += offset; |
b6518b38 | 2065 | abs_value = value - rel_addr; |
c3b7224a | 2066 | if ((abs_value & 0xfe000000) != 0) |
07d6d2b8 | 2067 | return bfd_reloc_overflow; |
c3b7224a | 2068 | addend = (addend & ~howto->src_mask) |
07d6d2b8 | 2069 | | (((value << 1) & howto->src_mask) & 0x3ff0000) | (value & 0x7fff); |
c3b7224a NC |
2070 | bfd_put_32 (input_bfd, addend, hit_data); |
2071 | return bfd_reloc_ok; | |
2072 | ||
2073 | case R_SCORE_PC19: | |
2074 | addend = bfd_get_32 (input_bfd, hit_data); | |
2075 | offset = (((addend & howto->src_mask) & 0x3ff0000) >> 6) | ((addend & howto->src_mask) & 0x3ff); | |
2076 | if ((offset & 0x80000) != 0) | |
07d6d2b8 | 2077 | offset |= 0xfff00000; |
c3b7224a NC |
2078 | abs_value = value = value - rel_addr + offset; |
2079 | /* exceed 20 bit : overflow. */ | |
2080 | if ((abs_value & 0x80000000) == 0x80000000) | |
07d6d2b8 | 2081 | abs_value = 0xffffffff - value + 1; |
c3b7224a | 2082 | if ((abs_value & 0xfff80000) != 0) |
07d6d2b8 | 2083 | return bfd_reloc_overflow; |
c3b7224a | 2084 | addend = (addend & ~howto->src_mask) |
07d6d2b8 | 2085 | | (((value << 6) & howto->src_mask) & 0x3ff0000) | (value & 0x3ff); |
c3b7224a NC |
2086 | bfd_put_32 (input_bfd, addend, hit_data); |
2087 | return bfd_reloc_ok; | |
2088 | ||
2089 | case R_SCORE16_11: | |
2090 | addend = bfd_get_16 (input_bfd, hit_data); | |
2091 | offset = addend & howto->src_mask; | |
07d6d2b8 AM |
2092 | if ((offset & 0x800) != 0) /* Offset is negative. */ |
2093 | offset |= 0xfffff000; | |
c3b7224a | 2094 | value += offset; |
b6518b38 | 2095 | abs_value = value - rel_addr; |
c3b7224a | 2096 | if ((abs_value & 0xfffff000) != 0) |
07d6d2b8 | 2097 | return bfd_reloc_overflow; |
c3b7224a NC |
2098 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); |
2099 | bfd_put_16 (input_bfd, addend, hit_data); | |
2100 | return bfd_reloc_ok; | |
2101 | ||
2102 | case R_SCORE16_PC8: | |
2103 | addend = bfd_get_16 (input_bfd, hit_data); | |
2104 | offset = (addend & howto->src_mask) << 1; | |
07d6d2b8 AM |
2105 | if ((offset & 0x100) != 0) /* Offset is negative. */ |
2106 | offset |= 0xfffffe00; | |
c3b7224a NC |
2107 | abs_value = value = value - rel_addr + offset; |
2108 | /* Sign bit + exceed 9 bit. */ | |
2109 | if (((value & 0xffffff00) != 0) && ((value & 0xffffff00) != 0xffffff00)) | |
07d6d2b8 | 2110 | return bfd_reloc_overflow; |
c3b7224a NC |
2111 | value >>= 1; |
2112 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); | |
2113 | bfd_put_16 (input_bfd, addend, hit_data); | |
2114 | return bfd_reloc_ok; | |
2115 | ||
2116 | case R_SCORE_HI16: | |
2117 | return bfd_reloc_ok; | |
2118 | ||
2119 | case R_SCORE_LO16: | |
2120 | hi16_addend = bfd_get_32 (input_bfd, hit_data - 4); | |
2121 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; | |
2122 | addend = bfd_get_32 (input_bfd, hit_data); | |
2123 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; | |
2124 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
2125 | ||
2126 | if (!gp_disp_p) | |
07d6d2b8 | 2127 | uvalue = value + offset; |
c3b7224a | 2128 | else |
07d6d2b8 | 2129 | uvalue = offset + gp - rel_addr + 4; |
c3b7224a NC |
2130 | |
2131 | hi16_offset = (uvalue >> 16) << 1; | |
2132 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
07d6d2b8 | 2133 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); |
c3b7224a NC |
2134 | bfd_put_32 (input_bfd, hi16_value, hit_data - 4); |
2135 | offset = (uvalue & 0xffff) << 1; | |
2136 | value = (addend & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
2137 | bfd_put_32 (input_bfd, value, hit_data); | |
2138 | return bfd_reloc_ok; | |
2139 | ||
2140 | case R_SCORE_GP15: | |
2141 | addend = bfd_get_32 (input_bfd, hit_data); | |
2142 | offset = addend & 0x7fff; | |
2143 | if ((offset & 0x4000) == 0x4000) | |
07d6d2b8 | 2144 | offset |= 0xffffc000; |
c3b7224a NC |
2145 | value = value + offset - gp; |
2146 | if (((value & 0xffffc000) != 0) && ((value & 0xffffc000) != 0xffffc000)) | |
07d6d2b8 | 2147 | return bfd_reloc_overflow; |
c3b7224a NC |
2148 | value = (addend & ~howto->src_mask) | (value & howto->src_mask); |
2149 | bfd_put_32 (input_bfd, value, hit_data); | |
2150 | return bfd_reloc_ok; | |
2151 | ||
2152 | case R_SCORE_GOT15: | |
2153 | case R_SCORE_CALL15: | |
2154 | if (local_p) | |
07d6d2b8 | 2155 | { |
0a1b45a2 | 2156 | bool forced; |
07d6d2b8 AM |
2157 | |
2158 | /* The special case is when the symbol is forced to be local. We need the | |
2159 | full address in the GOT since no R_SCORE_GOT_LO16 relocation follows. */ | |
2160 | forced = ! score_elf_local_relocation_p (input_bfd, rel, | |
0a1b45a2 | 2161 | local_sections, false); |
07d6d2b8 AM |
2162 | value = score_elf_got16_entry (output_bfd, input_bfd, info, |
2163 | symbol + addend, forced); | |
2164 | if (value == MINUS_ONE) | |
2165 | return bfd_reloc_outofrange; | |
2166 | value = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
2167 | output_bfd, input_bfd, value); | |
2168 | } | |
c3b7224a | 2169 | else |
07d6d2b8 AM |
2170 | { |
2171 | value = g; | |
2172 | } | |
c3b7224a NC |
2173 | |
2174 | if ((long) value > 0x3fff || (long) value < -0x4000) | |
07d6d2b8 | 2175 | return bfd_reloc_overflow; |
c3b7224a NC |
2176 | |
2177 | addend = bfd_get_32 (input_bfd, hit_data); | |
2178 | value = (addend & ~howto->dst_mask) | (value & howto->dst_mask); | |
2179 | bfd_put_32 (input_bfd, value, hit_data); | |
2180 | return bfd_reloc_ok; | |
2181 | ||
2182 | case R_SCORE_GPREL32: | |
2183 | value = (addend + symbol + gp0 - gp); | |
2184 | value &= howto->dst_mask; | |
2185 | bfd_put_32 (input_bfd, value, hit_data); | |
2186 | return bfd_reloc_ok; | |
2187 | ||
2188 | case R_SCORE_GOT_LO16: | |
2189 | addend = bfd_get_32 (input_bfd, hit_data); | |
2190 | value = (((addend >> 16) & 0x3) << 14) | ((addend & 0x7fff) >> 1); | |
2191 | value += symbol; | |
2192 | value = (addend & (~(howto->dst_mask))) | ((value & 0x3fff) << 1) | |
07d6d2b8 | 2193 | | (((value >> 14) & 0x3) << 16); |
c3b7224a NC |
2194 | |
2195 | bfd_put_32 (input_bfd, value, hit_data); | |
2196 | return bfd_reloc_ok; | |
2197 | ||
2198 | case R_SCORE_DUMMY_HI16: | |
2199 | return bfd_reloc_ok; | |
2200 | ||
2201 | case R_SCORE_GNU_VTINHERIT: | |
2202 | case R_SCORE_GNU_VTENTRY: | |
2203 | /* We don't do anything with these at present. */ | |
2204 | return bfd_reloc_continue; | |
2205 | ||
2206 | default: | |
2207 | return bfd_reloc_notsupported; | |
2208 | } | |
2209 | } | |
2210 | ||
2211 | /* Score backend functions. */ | |
2212 | ||
0a1b45a2 | 2213 | bool |
599c86c4 | 2214 | s7_bfd_score_info_to_howto (bfd *abfd, |
07d6d2b8 AM |
2215 | arelent *bfd_reloc, |
2216 | Elf_Internal_Rela *elf_reloc) | |
c3b7224a NC |
2217 | { |
2218 | unsigned int r_type; | |
2219 | ||
2220 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
2221 | if (r_type >= ARRAY_SIZE (elf32_score_howto_table)) | |
599c86c4 AM |
2222 | { |
2223 | /* xgettext:c-format */ | |
2224 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
2225 | abfd, r_type); | |
2226 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 2227 | return false; |
599c86c4 | 2228 | } |
f3185997 NC |
2229 | |
2230 | bfd_reloc->howto = &elf32_score_howto_table[r_type]; | |
0a1b45a2 | 2231 | return true; |
c3b7224a NC |
2232 | } |
2233 | ||
2234 | /* Relocate an score ELF section. */ | |
2235 | ||
0f684201 | 2236 | int |
c3b7224a | 2237 | s7_bfd_score_elf_relocate_section (bfd *output_bfd, |
07d6d2b8 AM |
2238 | struct bfd_link_info *info, |
2239 | bfd *input_bfd, | |
2240 | asection *input_section, | |
2241 | bfd_byte *contents, | |
2242 | Elf_Internal_Rela *relocs, | |
2243 | Elf_Internal_Sym *local_syms, | |
2244 | asection **local_sections) | |
c3b7224a NC |
2245 | { |
2246 | Elf_Internal_Shdr *symtab_hdr; | |
c3b7224a NC |
2247 | Elf_Internal_Rela *rel; |
2248 | Elf_Internal_Rela *relend; | |
2249 | const char *name; | |
2250 | unsigned long offset; | |
2251 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
2252 | size_t extsymoff; | |
0a1b45a2 | 2253 | bool gp_disp_p = false; |
c3b7224a NC |
2254 | |
2255 | /* Sort dynsym. */ | |
2256 | if (elf_hash_table (info)->dynamic_sections_created) | |
2257 | { | |
2258 | bfd_size_type dynsecsymcount = 0; | |
0e1862bb | 2259 | if (bfd_link_pic (info)) |
07d6d2b8 AM |
2260 | { |
2261 | asection * p; | |
2262 | const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); | |
2263 | ||
2264 | for (p = output_bfd->sections; p ; p = p->next) | |
2265 | if ((p->flags & SEC_EXCLUDE) == 0 | |
2266 | && (p->flags & SEC_ALLOC) != 0 | |
2267 | && !(*bed->elf_backend_omit_section_dynsym) (output_bfd, info, p)) | |
2268 | ++ dynsecsymcount; | |
2269 | } | |
c3b7224a NC |
2270 | |
2271 | if (!score_elf_sort_hash_table (info, dynsecsymcount + 1)) | |
0a1b45a2 | 2272 | return false; |
c3b7224a NC |
2273 | } |
2274 | ||
2275 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2276 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; | |
c3b7224a NC |
2277 | rel = relocs; |
2278 | relend = relocs + input_section->reloc_count; | |
2279 | for (; rel < relend; rel++) | |
2280 | { | |
2281 | int r_type; | |
2282 | reloc_howto_type *howto; | |
2283 | unsigned long r_symndx; | |
2284 | Elf_Internal_Sym *sym; | |
2285 | asection *sec; | |
2286 | struct score_elf_link_hash_entry *h; | |
2287 | bfd_vma relocation = 0; | |
2288 | bfd_reloc_status_type r; | |
2289 | arelent bfd_reloc; | |
2290 | ||
2291 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2292 | r_type = ELF32_R_TYPE (rel->r_info); | |
2293 | ||
f3185997 NC |
2294 | if (! s7_bfd_score_info_to_howto (input_bfd, &bfd_reloc, (Elf_Internal_Rela *) rel)) |
2295 | continue; | |
c3b7224a NC |
2296 | howto = bfd_reloc.howto; |
2297 | ||
2298 | h = NULL; | |
2299 | sym = NULL; | |
2300 | sec = NULL; | |
2301 | ||
2302 | if (r_symndx < extsymoff) | |
07d6d2b8 AM |
2303 | { |
2304 | sym = local_syms + r_symndx; | |
2305 | sec = local_sections[r_symndx]; | |
2306 | relocation = sec->output_section->vma + sec->output_offset; | |
2307 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); | |
2308 | ||
2309 | if (!bfd_link_relocatable (info)) | |
2310 | { | |
2311 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION | |
2312 | || (sec->flags & SEC_MERGE)) | |
2313 | { | |
2314 | relocation += sym->st_value; | |
2315 | } | |
2316 | ||
2317 | if ((sec->flags & SEC_MERGE) | |
2318 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2319 | { | |
2320 | asection *msec; | |
2321 | bfd_vma addend, value; | |
2322 | ||
2323 | switch (r_type) | |
2324 | { | |
2325 | case R_SCORE_HI16: | |
2326 | break; | |
2327 | case R_SCORE_LO16: | |
2328 | hi16_addend = bfd_get_32 (input_bfd, contents + rel->r_offset - 4); | |
2329 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; | |
2330 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2331 | offset = ((((value >> 16) & 0x3) << 15) | (value & 0x7fff)) >> 1; | |
2332 | addend = (hi16_offset << 16) | (offset & 0xffff); | |
2333 | msec = sec; | |
2334 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2335 | addend -= relocation; | |
2336 | addend += msec->output_section->vma + msec->output_offset; | |
2337 | uvalue = addend; | |
2338 | hi16_offset = (uvalue >> 16) << 1; | |
2339 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
2340 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
2341 | bfd_put_32 (input_bfd, hi16_value, contents + rel->r_offset - 4); | |
2342 | offset = (uvalue & 0xffff) << 1; | |
2343 | value = (value & (~(howto->dst_mask))) | |
2344 | | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
2345 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2346 | break; | |
2347 | case R_SCORE_GOT_LO16: | |
2348 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2349 | addend = (((value >> 16) & 0x3) << 14) | ((value & 0x7fff) >> 1); | |
2350 | msec = sec; | |
2351 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2352 | addend += msec->output_section->vma + msec->output_offset; | |
2353 | value = (value & (~(howto->dst_mask))) | ((addend & 0x3fff) << 1) | |
2354 | | (((addend >> 14) & 0x3) << 16); | |
2355 | ||
2356 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2357 | break; | |
2358 | default: | |
2359 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2360 | /* Get the (signed) value from the instruction. */ | |
2361 | addend = value & howto->src_mask; | |
2362 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2363 | { | |
2364 | bfd_signed_vma mask; | |
2365 | ||
2366 | mask = -1; | |
2367 | mask &= ~howto->src_mask; | |
2368 | addend |= mask; | |
2369 | } | |
2370 | msec = sec; | |
2371 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2372 | addend += msec->output_section->vma + msec->output_offset; | |
2373 | value = (value & ~howto->dst_mask) | (addend & howto->dst_mask); | |
2374 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2375 | break; | |
2376 | } | |
2377 | } | |
2378 | } | |
2379 | } | |
c3b7224a | 2380 | else |
07d6d2b8 AM |
2381 | { |
2382 | /* For global symbols we look up the symbol in the hash-table. */ | |
2383 | h = ((struct score_elf_link_hash_entry *) | |
2384 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]); | |
8a5da09b AM |
2385 | |
2386 | if (info->wrap_hash != NULL | |
2387 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
2388 | h = ((struct score_elf_link_hash_entry *) | |
2389 | unwrap_hash_lookup (info, input_bfd, &h->root.root)); | |
2390 | ||
07d6d2b8 AM |
2391 | /* Find the real hash-table entry for this symbol. */ |
2392 | while (h->root.root.type == bfd_link_hash_indirect | |
2393 | || h->root.root.type == bfd_link_hash_warning) | |
2394 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
2395 | ||
2396 | /* Record the name of this symbol, for our caller. */ | |
2397 | name = h->root.root.root.string; | |
2398 | ||
2399 | /* See if this is the special GP_DISP_LABEL symbol. Note that such a | |
2400 | symbol must always be a global symbol. */ | |
2401 | if (strcmp (name, GP_DISP_LABEL) == 0) | |
2402 | { | |
2403 | /* Relocations against GP_DISP_LABEL are permitted only with | |
2404 | R_SCORE_HI16 and R_SCORE_LO16 relocations. */ | |
2405 | if (r_type != R_SCORE_HI16 && r_type != R_SCORE_LO16) | |
2406 | return bfd_reloc_notsupported; | |
2407 | ||
0a1b45a2 | 2408 | gp_disp_p = true; |
07d6d2b8 AM |
2409 | } |
2410 | ||
2411 | /* If this symbol is defined, calculate its address. Note that | |
2412 | GP_DISP_LABEL is a magic symbol, always implicitly defined by the | |
2413 | linker, so it's inappropriate to check to see whether or not | |
2414 | its defined. */ | |
2415 | else if ((h->root.root.type == bfd_link_hash_defined | |
2416 | || h->root.root.type == bfd_link_hash_defweak) | |
2417 | && h->root.root.u.def.section) | |
2418 | { | |
2419 | sec = h->root.root.u.def.section; | |
2420 | if (sec->output_section) | |
2421 | relocation = (h->root.root.u.def.value | |
2422 | + sec->output_section->vma | |
2423 | + sec->output_offset); | |
2424 | else | |
2425 | { | |
2426 | relocation = h->root.root.u.def.value; | |
2427 | } | |
2428 | } | |
2429 | else if (h->root.root.type == bfd_link_hash_undefweak) | |
2430 | /* We allow relocations against undefined weak symbols, giving | |
2431 | it the value zero, so that you can undefined weak functions | |
2432 | and check to see if they exist by looking at their addresses. */ | |
2433 | relocation = 0; | |
2434 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
2435 | && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT) | |
2436 | relocation = 0; | |
2437 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
2438 | { | |
2439 | /* If this is a dynamic link, we should have created a _DYNAMIC_LINK symbol | |
2440 | in s7_bfd_score_elf_create_dynamic_sections. Otherwise, we should define | |
2441 | the symbol with a value of 0. */ | |
2442 | BFD_ASSERT (! bfd_link_pic (info)); | |
2443 | BFD_ASSERT (bfd_get_section_by_name (output_bfd, ".dynamic") == NULL); | |
2444 | relocation = 0; | |
2445 | } | |
2446 | else if (!bfd_link_relocatable (info)) | |
2447 | { | |
95a51568 FS |
2448 | info->callbacks->undefined_symbol |
2449 | (info, h->root.root.root.string, input_bfd, input_section, | |
2450 | rel->r_offset, | |
2451 | (info->unresolved_syms_in_objects == RM_DIAGNOSE | |
2452 | && !info->warn_unresolved_syms) | |
1a72702b | 2453 | || ELF_ST_VISIBILITY (h->root.other)); |
95a51568 | 2454 | relocation = 0; |
07d6d2b8 AM |
2455 | } |
2456 | } | |
c3b7224a | 2457 | |
dbaa2011 | 2458 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2459 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2460 | rel, 1, relend, howto, 0, contents); |
c3b7224a | 2461 | |
0e1862bb | 2462 | if (bfd_link_relocatable (info)) |
07d6d2b8 AM |
2463 | { |
2464 | /* This is a relocatable link. We don't have to change | |
2465 | anything, unless the reloc is against a section symbol, | |
2466 | in which case we have to adjust according to where the | |
2467 | section symbol winds up in the output section. */ | |
2468 | if (r_symndx < symtab_hdr->sh_info) | |
2469 | { | |
2470 | sym = local_syms + r_symndx; | |
2471 | ||
2472 | if (r_type == R_SCORE_GOT15) | |
2473 | { | |
2474 | const Elf_Internal_Rela *lo16_rel; | |
2475 | bfd_vma lo_addend = 0, lo_value = 0; | |
2476 | bfd_vma addend, value; | |
2477 | ||
2478 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2479 | addend = value & 0x7fff; | |
2480 | if ((addend & 0x4000) == 0x4000) | |
2481 | addend |= 0xffffc000; | |
2482 | ||
2483 | relend = relocs + input_section->reloc_count; | |
2484 | lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend); | |
2485 | if (lo16_rel != NULL) | |
2486 | { | |
2487 | lo_value = bfd_get_32 (input_bfd, contents + lo16_rel->r_offset); | |
2488 | lo_addend = (((lo_value >> 16) & 0x3) << 14) | ((lo_value & 0x7fff) >> 1); | |
2489 | } | |
2490 | ||
2491 | addend <<= 16; | |
2492 | addend += lo_addend; | |
2493 | ||
2494 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2495 | addend += local_sections[r_symndx]->output_offset; | |
2496 | ||
2497 | lo_addend = addend & 0xffff; | |
2498 | lo_value = (lo_value & (~(howto->dst_mask))) | ((lo_addend & 0x3fff) << 1) | |
2499 | | (((lo_addend >> 14) & 0x3) << 16); | |
2500 | bfd_put_32 (input_bfd, lo_value, contents + lo16_rel->r_offset); | |
2501 | ||
2502 | addend = addend >> 16; | |
2503 | value = (value & ~howto->src_mask) | (addend & howto->src_mask); | |
2504 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2505 | } | |
2506 | else if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2507 | { | |
2508 | sec = local_sections[r_symndx]; | |
2509 | score_elf_add_to_rel (input_bfd, contents + rel->r_offset, | |
2510 | howto, (bfd_signed_vma) (sec->output_offset + sym->st_value)); | |
2511 | } | |
2512 | } | |
2513 | continue; | |
2514 | } | |
c3b7224a NC |
2515 | |
2516 | /* This is a final link. */ | |
2517 | r = score_elf_final_link_relocate (howto, input_bfd, output_bfd, | |
07d6d2b8 AM |
2518 | input_section, contents, rel, relocs, |
2519 | relocation, info, name, | |
2520 | (h ? ELF_ST_TYPE ((unsigned int) h->root.root.type) : | |
2521 | ELF_ST_TYPE ((unsigned int) sym->st_info)), h, local_syms, | |
2522 | local_sections, gp_disp_p); | |
c3b7224a NC |
2523 | |
2524 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
2525 | { |
2526 | const char *msg = (const char *)0; | |
2527 | ||
2528 | switch (r) | |
2529 | { | |
2530 | case bfd_reloc_overflow: | |
2531 | /* If the overflowing reloc was to an undefined symbol, | |
2532 | we have already printed one error message and there | |
2533 | is no point complaining again. */ | |
2534 | if (!h || h->root.root.type != bfd_link_hash_undefined) | |
1a72702b AM |
2535 | (*info->callbacks->reloc_overflow) |
2536 | (info, NULL, name, howto->name, (bfd_vma) 0, | |
2537 | input_bfd, input_section, rel->r_offset); | |
07d6d2b8 AM |
2538 | break; |
2539 | case bfd_reloc_undefined: | |
1a72702b | 2540 | (*info->callbacks->undefined_symbol) |
0a1b45a2 | 2541 | (info, name, input_bfd, input_section, rel->r_offset, true); |
07d6d2b8 | 2542 | break; |
c3b7224a | 2543 | |
07d6d2b8 AM |
2544 | case bfd_reloc_outofrange: |
2545 | msg = _("internal error: out of range error"); | |
2546 | goto common_error; | |
c3b7224a | 2547 | |
07d6d2b8 AM |
2548 | case bfd_reloc_notsupported: |
2549 | msg = _("internal error: unsupported relocation error"); | |
2550 | goto common_error; | |
c3b7224a | 2551 | |
07d6d2b8 AM |
2552 | case bfd_reloc_dangerous: |
2553 | msg = _("internal error: dangerous error"); | |
2554 | goto common_error; | |
c3b7224a | 2555 | |
07d6d2b8 AM |
2556 | default: |
2557 | msg = _("internal error: unknown error"); | |
2558 | /* Fall through. */ | |
c3b7224a | 2559 | |
07d6d2b8 | 2560 | common_error: |
1a72702b AM |
2561 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
2562 | input_section, rel->r_offset); | |
07d6d2b8 AM |
2563 | break; |
2564 | } | |
2565 | } | |
c3b7224a NC |
2566 | } |
2567 | ||
0a1b45a2 | 2568 | return true; |
c3b7224a NC |
2569 | } |
2570 | ||
2571 | /* Look through the relocs for a section during the first phase, and | |
2572 | allocate space in the global offset table. */ | |
2573 | ||
0a1b45a2 | 2574 | bool |
c3b7224a | 2575 | s7_bfd_score_elf_check_relocs (bfd *abfd, |
07d6d2b8 AM |
2576 | struct bfd_link_info *info, |
2577 | asection *sec, | |
2578 | const Elf_Internal_Rela *relocs) | |
c3b7224a | 2579 | { |
c3b7224a NC |
2580 | bfd *dynobj; |
2581 | Elf_Internal_Shdr *symtab_hdr; | |
2582 | struct elf_link_hash_entry **sym_hashes; | |
2583 | struct score_got_info *g; | |
2584 | size_t extsymoff; | |
2585 | const Elf_Internal_Rela *rel; | |
2586 | const Elf_Internal_Rela *rel_end; | |
2587 | asection *sgot; | |
2588 | asection *sreloc; | |
c3b7224a | 2589 | |
0e1862bb | 2590 | if (bfd_link_relocatable (info)) |
0a1b45a2 | 2591 | return true; |
c3b7224a NC |
2592 | |
2593 | dynobj = elf_hash_table (info)->dynobj; | |
2594 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2595 | sym_hashes = elf_sym_hashes (abfd); | |
2596 | extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info; | |
2597 | ||
c3b7224a NC |
2598 | if (dynobj == NULL) |
2599 | { | |
2600 | sgot = NULL; | |
2601 | g = NULL; | |
2602 | } | |
2603 | else | |
2604 | { | |
0a1b45a2 | 2605 | sgot = score_elf_got_section (dynobj, false); |
c3b7224a | 2606 | if (sgot == NULL) |
07d6d2b8 | 2607 | g = NULL; |
c3b7224a | 2608 | else |
07d6d2b8 AM |
2609 | { |
2610 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
2611 | g = score_elf_section_data (sgot)->u.got_info; | |
2612 | BFD_ASSERT (g != NULL); | |
2613 | } | |
c3b7224a NC |
2614 | } |
2615 | ||
2616 | sreloc = NULL; | |
056bafd4 | 2617 | rel_end = relocs + sec->reloc_count; |
c3b7224a NC |
2618 | for (rel = relocs; rel < rel_end; ++rel) |
2619 | { | |
2620 | unsigned long r_symndx; | |
2621 | unsigned int r_type; | |
2622 | struct elf_link_hash_entry *h; | |
2623 | ||
2624 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2625 | r_type = ELF32_R_TYPE (rel->r_info); | |
2626 | ||
2627 | if (r_symndx < extsymoff) | |
07d6d2b8 AM |
2628 | { |
2629 | h = NULL; | |
2630 | } | |
c3b7224a | 2631 | else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr)) |
07d6d2b8 | 2632 | { |
4eca0228 | 2633 | _bfd_error_handler |
695344c0 | 2634 | /* xgettext:c-format */ |
38f14ab8 | 2635 | (_("%pB: malformed reloc detected for section %pA"), abfd, sec); |
07d6d2b8 | 2636 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2637 | return false; |
07d6d2b8 | 2638 | } |
c3b7224a | 2639 | else |
07d6d2b8 AM |
2640 | { |
2641 | h = sym_hashes[r_symndx - extsymoff]; | |
2642 | ||
2643 | /* This may be an indirect symbol created because of a version. */ | |
2644 | if (h != NULL) | |
2645 | { | |
2646 | while (h->root.type == bfd_link_hash_indirect) | |
2647 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2648 | } | |
2649 | } | |
c3b7224a NC |
2650 | |
2651 | /* Some relocs require a global offset table. */ | |
2652 | if (dynobj == NULL || sgot == NULL) | |
07d6d2b8 AM |
2653 | { |
2654 | switch (r_type) | |
2655 | { | |
2656 | case R_SCORE_GOT15: | |
2657 | case R_SCORE_CALL15: | |
2658 | if (dynobj == NULL) | |
2659 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
0a1b45a2 AM |
2660 | if (!score_elf_create_got_section (dynobj, info, false)) |
2661 | return false; | |
07d6d2b8 AM |
2662 | g = score_elf_got_info (dynobj, &sgot); |
2663 | break; | |
2664 | case R_SCORE_ABS32: | |
2665 | case R_SCORE_REL32: | |
2666 | if (dynobj == NULL | |
0e1862bb L |
2667 | && (bfd_link_pic (info) || h != NULL) |
2668 | && (sec->flags & SEC_ALLOC) != 0) | |
07d6d2b8 AM |
2669 | elf_hash_table (info)->dynobj = dynobj = abfd; |
2670 | break; | |
2671 | default: | |
2672 | break; | |
2673 | } | |
2674 | } | |
c3b7224a NC |
2675 | |
2676 | if (!h && (r_type == R_SCORE_GOT_LO16)) | |
07d6d2b8 AM |
2677 | { |
2678 | if (! score_elf_record_local_got_symbol (abfd, r_symndx, rel->r_addend, g)) | |
0a1b45a2 | 2679 | return false; |
07d6d2b8 | 2680 | } |
c3b7224a NC |
2681 | |
2682 | switch (r_type) | |
07d6d2b8 AM |
2683 | { |
2684 | case R_SCORE_CALL15: | |
2685 | if (h == NULL) | |
2686 | { | |
4eca0228 | 2687 | _bfd_error_handler |
695344c0 | 2688 | /* xgettext:c-format */ |
2dcf00ce AM |
2689 | (_("%pB: CALL15 reloc at %#" PRIx64 " not against global symbol"), |
2690 | abfd, (uint64_t) rel->r_offset); | |
07d6d2b8 | 2691 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2692 | return false; |
07d6d2b8 AM |
2693 | } |
2694 | else | |
2695 | { | |
2696 | /* This symbol requires a global offset table entry. */ | |
2697 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
0a1b45a2 | 2698 | return false; |
07d6d2b8 AM |
2699 | |
2700 | /* We need a stub, not a plt entry for the undefined function. But we record | |
2701 | it as if it needs plt. See _bfd_elf_adjust_dynamic_symbol. */ | |
2702 | h->needs_plt = 1; | |
2703 | h->type = STT_FUNC; | |
2704 | } | |
2705 | break; | |
2706 | case R_SCORE_GOT15: | |
2707 | if (h && ! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
0a1b45a2 | 2708 | return false; |
07d6d2b8 AM |
2709 | break; |
2710 | case R_SCORE_ABS32: | |
2711 | case R_SCORE_REL32: | |
2712 | if ((bfd_link_pic (info) || h != NULL) | |
0e1862bb | 2713 | && (sec->flags & SEC_ALLOC) != 0) |
07d6d2b8 AM |
2714 | { |
2715 | if (sreloc == NULL) | |
2716 | { | |
0a1b45a2 | 2717 | sreloc = score_elf_rel_dyn_section (dynobj, true); |
07d6d2b8 | 2718 | if (sreloc == NULL) |
0a1b45a2 | 2719 | return false; |
07d6d2b8 | 2720 | } |
c3b7224a | 2721 | #define SCORE_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY) |
07d6d2b8 AM |
2722 | if (bfd_link_pic (info)) |
2723 | { | |
2724 | /* When creating a shared object, we must copy these reloc types into | |
2725 | the output file as R_SCORE_REL32 relocs. We make room for this reloc | |
2726 | in the .rel.dyn reloc section. */ | |
2727 | score_elf_allocate_dynamic_relocations (dynobj, 1); | |
2728 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2729 | == SCORE_READONLY_SECTION) | |
2730 | /* We tell the dynamic linker that there are | |
2731 | relocations against the text segment. */ | |
2732 | info->flags |= DF_TEXTREL; | |
2733 | } | |
2734 | else | |
2735 | { | |
2736 | struct score_elf_link_hash_entry *hscore; | |
2737 | ||
2738 | /* We only need to copy this reloc if the symbol is | |
2739 | defined in a dynamic object. */ | |
2740 | hscore = (struct score_elf_link_hash_entry *) h; | |
2741 | ++hscore->possibly_dynamic_relocs; | |
2742 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2743 | == SCORE_READONLY_SECTION) | |
2744 | /* We need it to tell the dynamic linker if there | |
2745 | are relocations against the text segment. */ | |
0a1b45a2 | 2746 | hscore->readonly_reloc = true; |
07d6d2b8 AM |
2747 | } |
2748 | ||
2749 | /* Even though we don't directly need a GOT entry for this symbol, | |
2750 | a symbol must have a dynamic symbol table index greater that | |
2751 | DT_SCORE_GOTSYM if there are dynamic relocations against it. */ | |
2752 | if (h != NULL) | |
2753 | { | |
2754 | if (dynobj == NULL) | |
2755 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
0a1b45a2 AM |
2756 | if (! score_elf_create_got_section (dynobj, info, true)) |
2757 | return false; | |
07d6d2b8 AM |
2758 | g = score_elf_got_info (dynobj, &sgot); |
2759 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
0a1b45a2 | 2760 | return false; |
07d6d2b8 AM |
2761 | } |
2762 | } | |
2763 | break; | |
2764 | ||
2765 | /* This relocation describes the C++ object vtable hierarchy. | |
2766 | Reconstruct it for later use during GC. */ | |
2767 | case R_SCORE_GNU_VTINHERIT: | |
2768 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
0a1b45a2 | 2769 | return false; |
07d6d2b8 AM |
2770 | break; |
2771 | ||
2772 | /* This relocation describes which C++ vtable entries are actually | |
2773 | used. Record for later use during GC. */ | |
2774 | case R_SCORE_GNU_VTENTRY: | |
2775 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
0a1b45a2 | 2776 | return false; |
07d6d2b8 AM |
2777 | break; |
2778 | default: | |
2779 | break; | |
2780 | } | |
c3b7224a NC |
2781 | |
2782 | /* We must not create a stub for a symbol that has relocations | |
07d6d2b8 | 2783 | related to taking the function's address. */ |
c3b7224a | 2784 | switch (r_type) |
07d6d2b8 AM |
2785 | { |
2786 | default: | |
2787 | if (h != NULL) | |
2788 | { | |
2789 | struct score_elf_link_hash_entry *sh; | |
2790 | ||
2791 | sh = (struct score_elf_link_hash_entry *) h; | |
0a1b45a2 | 2792 | sh->no_fn_stub = true; |
07d6d2b8 AM |
2793 | } |
2794 | break; | |
2795 | case R_SCORE_CALL15: | |
2796 | break; | |
2797 | } | |
c3b7224a NC |
2798 | } |
2799 | ||
0a1b45a2 | 2800 | return true; |
c3b7224a NC |
2801 | } |
2802 | ||
0a1b45a2 | 2803 | bool |
c3b7224a | 2804 | s7_bfd_score_elf_add_symbol_hook (bfd *abfd, |
07d6d2b8 AM |
2805 | struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2806 | Elf_Internal_Sym *sym, | |
2807 | const char **namep ATTRIBUTE_UNUSED, | |
2808 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2809 | asection **secp, | |
2810 | bfd_vma *valp) | |
c3b7224a NC |
2811 | { |
2812 | switch (sym->st_shndx) | |
2813 | { | |
2814 | case SHN_COMMON: | |
2815 | if (sym->st_size > elf_gp_size (abfd)) | |
07d6d2b8 | 2816 | break; |
c3b7224a NC |
2817 | /* Fall through. */ |
2818 | case SHN_SCORE_SCOMMON: | |
2819 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
10885e24 | 2820 | (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; |
c3b7224a NC |
2821 | *valp = sym->st_size; |
2822 | break; | |
2823 | } | |
2824 | ||
0a1b45a2 | 2825 | return true; |
c3b7224a NC |
2826 | } |
2827 | ||
2828 | void | |
2829 | s7_bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym) | |
2830 | { | |
2831 | elf_symbol_type *elfsym; | |
2832 | ||
2833 | elfsym = (elf_symbol_type *) asym; | |
2834 | switch (elfsym->internal_elf_sym.st_shndx) | |
2835 | { | |
2836 | case SHN_COMMON: | |
2837 | if (asym->value > elf_gp_size (abfd)) | |
07d6d2b8 | 2838 | break; |
c3b7224a NC |
2839 | /* Fall through. */ |
2840 | case SHN_SCORE_SCOMMON: | |
c3b7224a NC |
2841 | asym->section = &score_elf_scom_section; |
2842 | asym->value = elfsym->internal_elf_sym.st_size; | |
2843 | break; | |
2844 | } | |
2845 | } | |
2846 | ||
6e0b88f1 | 2847 | int |
c3b7224a | 2848 | s7_bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
2849 | const char *name ATTRIBUTE_UNUSED, |
2850 | Elf_Internal_Sym *sym, | |
2851 | asection *input_sec, | |
2852 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
c3b7224a NC |
2853 | { |
2854 | /* If we see a common symbol, which implies a relocatable link, then | |
2855 | if a symbol was small common in an input file, mark it as small | |
2856 | common in the output file. */ | |
2857 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
2858 | sym->st_shndx = SHN_SCORE_SCOMMON; | |
2859 | ||
6e0b88f1 | 2860 | return 1; |
c3b7224a NC |
2861 | } |
2862 | ||
0a1b45a2 | 2863 | bool |
c3b7224a | 2864 | s7_bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
2865 | asection *sec, |
2866 | int *retval) | |
c3b7224a | 2867 | { |
fd361982 | 2868 | if (strcmp (bfd_section_name (sec), ".scommon") == 0) |
c3b7224a NC |
2869 | { |
2870 | *retval = SHN_SCORE_SCOMMON; | |
0a1b45a2 | 2871 | return true; |
c3b7224a NC |
2872 | } |
2873 | ||
0a1b45a2 | 2874 | return false; |
c3b7224a NC |
2875 | } |
2876 | ||
2877 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2878 | regular object. The current definition is in some section of the | |
2879 | dynamic object, but we're not including those sections. We have to | |
2880 | change the definition to something the rest of the link can understand. */ | |
2881 | ||
0a1b45a2 | 2882 | bool |
c3b7224a | 2883 | s7_bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
07d6d2b8 | 2884 | struct elf_link_hash_entry *h) |
c3b7224a NC |
2885 | { |
2886 | bfd *dynobj; | |
2887 | struct score_elf_link_hash_entry *hscore; | |
2888 | asection *s; | |
2889 | ||
2890 | dynobj = elf_hash_table (info)->dynobj; | |
2891 | ||
2892 | /* Make sure we know what is going on here. */ | |
2893 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
2894 | && (h->needs_plt |
2895 | || h->is_weakalias | |
2896 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
c3b7224a NC |
2897 | |
2898 | /* If this symbol is defined in a dynamic object, we need to copy | |
2899 | any R_SCORE_ABS32 or R_SCORE_REL32 relocs against it into the output | |
2900 | file. */ | |
2901 | hscore = (struct score_elf_link_hash_entry *) h; | |
0e1862bb | 2902 | if (!bfd_link_relocatable (info) |
c3b7224a NC |
2903 | && hscore->possibly_dynamic_relocs != 0 |
2904 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)) | |
2905 | { | |
2906 | score_elf_allocate_dynamic_relocations (dynobj, hscore->possibly_dynamic_relocs); | |
2907 | if (hscore->readonly_reloc) | |
07d6d2b8 AM |
2908 | /* We tell the dynamic linker that there are relocations |
2909 | against the text segment. */ | |
2910 | info->flags |= DF_TEXTREL; | |
c3b7224a NC |
2911 | } |
2912 | ||
2913 | /* For a function, create a stub, if allowed. */ | |
2914 | if (!hscore->no_fn_stub && h->needs_plt) | |
2915 | { | |
2916 | if (!elf_hash_table (info)->dynamic_sections_created) | |
0a1b45a2 | 2917 | return true; |
c3b7224a NC |
2918 | |
2919 | /* If this symbol is not defined in a regular file, then set | |
07d6d2b8 AM |
2920 | the symbol to the stub location. This is required to make |
2921 | function pointers compare as equal between the normal | |
2922 | executable and the shared library. */ | |
c3b7224a | 2923 | if (!h->def_regular) |
07d6d2b8 AM |
2924 | { |
2925 | /* We need .stub section. */ | |
2926 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); | |
2927 | BFD_ASSERT (s != NULL); | |
c3b7224a | 2928 | |
07d6d2b8 AM |
2929 | h->root.u.def.section = s; |
2930 | h->root.u.def.value = s->size; | |
c3b7224a | 2931 | |
07d6d2b8 AM |
2932 | /* XXX Write this stub address somewhere. */ |
2933 | h->plt.offset = s->size; | |
c3b7224a | 2934 | |
07d6d2b8 AM |
2935 | /* Make room for this stub code. */ |
2936 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
c3b7224a | 2937 | |
07d6d2b8 AM |
2938 | /* The last half word of the stub will be filled with the index |
2939 | of this symbol in .dynsym section. */ | |
0a1b45a2 | 2940 | return true; |
07d6d2b8 | 2941 | } |
c3b7224a NC |
2942 | } |
2943 | else if ((h->type == STT_FUNC) && !h->needs_plt) | |
2944 | { | |
2945 | /* This will set the entry for this symbol in the GOT to 0, and | |
07d6d2b8 | 2946 | the dynamic linker will take care of this. */ |
c3b7224a | 2947 | h->root.u.def.value = 0; |
0a1b45a2 | 2948 | return true; |
c3b7224a NC |
2949 | } |
2950 | ||
2951 | /* If this is a weak symbol, and there is a real definition, the | |
2952 | processor independent code will have arranged for us to see the | |
2953 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2954 | if (h->is_weakalias) |
c3b7224a | 2955 | { |
60d67dc8 AM |
2956 | struct elf_link_hash_entry *def = weakdef (h); |
2957 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2958 | h->root.u.def.section = def->root.u.def.section; | |
2959 | h->root.u.def.value = def->root.u.def.value; | |
0a1b45a2 | 2960 | return true; |
c3b7224a NC |
2961 | } |
2962 | ||
2963 | /* This is a reference to a symbol defined by a dynamic object which | |
2964 | is not a function. */ | |
0a1b45a2 | 2965 | return true; |
c3b7224a NC |
2966 | } |
2967 | ||
2968 | /* This function is called after all the input files have been read, | |
2969 | and the input sections have been assigned to output sections. */ | |
2970 | ||
0a1b45a2 | 2971 | bool |
af969b14 AM |
2972 | s7_bfd_score_elf_early_size_sections (bfd *output_bfd, |
2973 | struct bfd_link_info *info) | |
c3b7224a NC |
2974 | { |
2975 | bfd *dynobj; | |
2976 | asection *s; | |
2977 | struct score_got_info *g; | |
2978 | int i; | |
2979 | bfd_size_type loadable_size = 0; | |
2980 | bfd_size_type local_gotno; | |
2981 | bfd *sub; | |
2982 | ||
2983 | dynobj = elf_hash_table (info)->dynobj; | |
2984 | if (dynobj == NULL) | |
2985 | /* Relocatable links don't have it. */ | |
0a1b45a2 | 2986 | return true; |
c3b7224a NC |
2987 | |
2988 | g = score_elf_got_info (dynobj, &s); | |
2989 | if (s == NULL) | |
0a1b45a2 | 2990 | return true; |
c3b7224a NC |
2991 | |
2992 | /* Calculate the total loadable size of the output. That will give us the | |
2993 | maximum number of GOT_PAGE entries required. */ | |
c72f2fb2 | 2994 | for (sub = info->input_bfds; sub; sub = sub->link.next) |
c3b7224a NC |
2995 | { |
2996 | asection *subsection; | |
2997 | ||
2998 | for (subsection = sub->sections; | |
07d6d2b8 AM |
2999 | subsection; |
3000 | subsection = subsection->next) | |
3001 | { | |
3002 | if ((subsection->flags & SEC_ALLOC) == 0) | |
3003 | continue; | |
3004 | loadable_size += ((subsection->size + 0xf) | |
3005 | &~ (bfd_size_type) 0xf); | |
3006 | } | |
c3b7224a NC |
3007 | } |
3008 | ||
3009 | /* There has to be a global GOT entry for every symbol with | |
3010 | a dynamic symbol table index of DT_SCORE_GOTSYM or | |
3011 | higher. Therefore, it make sense to put those symbols | |
3012 | that need GOT entries at the end of the symbol table. We | |
3013 | do that here. */ | |
3014 | if (! score_elf_sort_hash_table (info, 1)) | |
0a1b45a2 | 3015 | return false; |
c3b7224a NC |
3016 | |
3017 | if (g->global_gotsym != NULL) | |
3018 | i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx; | |
3019 | else | |
3020 | /* If there are no global symbols, or none requiring | |
3021 | relocations, then GLOBAL_GOTSYM will be NULL. */ | |
3022 | i = 0; | |
3023 | ||
3024 | /* In the worst case, we'll get one stub per dynamic symbol. */ | |
3025 | loadable_size += SCORE_FUNCTION_STUB_SIZE * i; | |
3026 | ||
3027 | /* Assume there are two loadable segments consisting of | |
3028 | contiguous sections. Is 5 enough? */ | |
3029 | local_gotno = (loadable_size >> 16) + 5; | |
3030 | ||
3031 | g->local_gotno += local_gotno; | |
3032 | s->size += g->local_gotno * SCORE_ELF_GOT_SIZE (output_bfd); | |
3033 | ||
3034 | g->global_gotno = i; | |
3035 | s->size += i * SCORE_ELF_GOT_SIZE (output_bfd); | |
3036 | ||
3037 | score_elf_resolve_final_got_entries (g); | |
3038 | ||
3039 | if (s->size > SCORE_ELF_GOT_MAX_SIZE (output_bfd)) | |
3040 | { | |
3041 | /* Fixme. Error message or Warning message should be issued here. */ | |
3042 | } | |
3043 | ||
0a1b45a2 | 3044 | return true; |
c3b7224a NC |
3045 | } |
3046 | ||
3047 | /* Set the sizes of the dynamic sections. */ | |
3048 | ||
0a1b45a2 | 3049 | bool |
af969b14 | 3050 | s7_bfd_score_elf_late_size_sections (bfd *output_bfd, struct bfd_link_info *info) |
c3b7224a NC |
3051 | { |
3052 | bfd *dynobj; | |
3053 | asection *s; | |
0a1b45a2 | 3054 | bool reltext; |
c3b7224a NC |
3055 | |
3056 | dynobj = elf_hash_table (info)->dynobj; | |
af969b14 AM |
3057 | if (dynobj == NULL) |
3058 | return true; | |
c3b7224a NC |
3059 | |
3060 | if (elf_hash_table (info)->dynamic_sections_created) | |
3061 | { | |
3062 | /* Set the contents of the .interp section to the interpreter. */ | |
f5233a16 | 3063 | if (bfd_link_executable (info) && !info->nointerp) |
07d6d2b8 AM |
3064 | { |
3065 | s = bfd_get_linker_section (dynobj, ".interp"); | |
3066 | BFD_ASSERT (s != NULL); | |
3067 | s->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1; | |
3068 | s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER; | |
3069 | } | |
c3b7224a NC |
3070 | } |
3071 | ||
3072 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3073 | determined the sizes of the various dynamic sections. Allocate | |
3074 | memory for them. */ | |
0a1b45a2 | 3075 | reltext = false; |
c3b7224a NC |
3076 | for (s = dynobj->sections; s != NULL; s = s->next) |
3077 | { | |
3078 | const char *name; | |
3079 | ||
3080 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 3081 | continue; |
c3b7224a NC |
3082 | |
3083 | /* It's OK to base decisions on the section name, because none | |
07d6d2b8 | 3084 | of the dynobj section names depend upon the input files. */ |
fd361982 | 3085 | name = bfd_section_name (s); |
c3b7224a | 3086 | |
08dedd66 | 3087 | if (startswith (name, ".rel")) |
07d6d2b8 AM |
3088 | { |
3089 | if (s->size == 0) | |
3090 | { | |
3091 | /* We only strip the section if the output section name | |
3092 | has the same name. Otherwise, there might be several | |
3093 | input sections for this output section. FIXME: This | |
3094 | code is probably not needed these days anyhow, since | |
3095 | the linker now does not create empty output sections. */ | |
3096 | if (s->output_section != NULL | |
3097 | && strcmp (name, | |
fd361982 | 3098 | bfd_section_name (s->output_section)) == 0) |
07d6d2b8 AM |
3099 | s->flags |= SEC_EXCLUDE; |
3100 | } | |
3101 | else | |
3102 | { | |
3103 | const char *outname; | |
3104 | asection *target; | |
3105 | ||
3106 | /* If this relocation section applies to a read only | |
3107 | section, then we probably need a DT_TEXTREL entry. | |
3108 | If the relocation section is .rel.dyn, we always | |
3109 | assert a DT_TEXTREL entry rather than testing whether | |
3110 | there exists a relocation to a read only section or | |
3111 | not. */ | |
fd361982 | 3112 | outname = bfd_section_name (s->output_section); |
07d6d2b8 AM |
3113 | target = bfd_get_section_by_name (output_bfd, outname + 4); |
3114 | if ((target != NULL | |
3115 | && (target->flags & SEC_READONLY) != 0 | |
3116 | && (target->flags & SEC_ALLOC) != 0) || strcmp (outname, ".rel.dyn") == 0) | |
0a1b45a2 | 3117 | reltext = true; |
07d6d2b8 AM |
3118 | |
3119 | /* We use the reloc_count field as a counter if we need | |
3120 | to copy relocs into the output file. */ | |
3121 | if (strcmp (name, ".rel.dyn") != 0) | |
3122 | s->reloc_count = 0; | |
3123 | } | |
3124 | } | |
08dedd66 | 3125 | else if (startswith (name, ".got")) |
07d6d2b8 | 3126 | { |
af969b14 | 3127 | /* s7_bfd_score_elf_early_size_sections() has already done |
07d6d2b8 AM |
3128 | most of the work, but some symbols may have been mapped |
3129 | to versions that we must now resolve in the got_entries | |
3130 | hash tables. */ | |
3131 | } | |
c3b7224a | 3132 | else if (strcmp (name, SCORE_ELF_STUB_SECTION_NAME) == 0) |
07d6d2b8 AM |
3133 | { |
3134 | /* IRIX rld assumes that the function stub isn't at the end | |
3135 | of .text section. So put a dummy. XXX */ | |
3136 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
3137 | } | |
08dedd66 | 3138 | else if (! startswith (name, ".init")) |
07d6d2b8 AM |
3139 | { |
3140 | /* It's not one of our sections, so don't allocate space. */ | |
3141 | continue; | |
3142 | } | |
c3b7224a NC |
3143 | |
3144 | /* Allocate memory for the section contents. */ | |
3145 | s->contents = bfd_zalloc (dynobj, s->size); | |
3146 | if (s->contents == NULL && s->size != 0) | |
07d6d2b8 AM |
3147 | { |
3148 | bfd_set_error (bfd_error_no_memory); | |
0a1b45a2 | 3149 | return false; |
07d6d2b8 | 3150 | } |
c3b7224a NC |
3151 | } |
3152 | ||
3153 | if (elf_hash_table (info)->dynamic_sections_created) | |
3154 | { | |
3155 | /* Add some entries to the .dynamic section. We fill in the | |
07d6d2b8 AM |
3156 | values later, in s7_bfd_score_elf_finish_dynamic_sections, but we |
3157 | must add the entries now so that we get the correct size for | |
3158 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3159 | dynamic linker and used by the debugger. */ | |
c3b7224a NC |
3160 | |
3161 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0)) | |
0a1b45a2 | 3162 | return false; |
c3b7224a NC |
3163 | |
3164 | if (reltext) | |
07d6d2b8 | 3165 | info->flags |= DF_TEXTREL; |
c3b7224a NC |
3166 | |
3167 | if ((info->flags & DF_TEXTREL) != 0) | |
07d6d2b8 AM |
3168 | { |
3169 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0)) | |
0a1b45a2 | 3170 | return false; |
07d6d2b8 | 3171 | } |
c3b7224a NC |
3172 | |
3173 | if (! SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0)) | |
0a1b45a2 | 3174 | return false; |
c3b7224a | 3175 | |
0a1b45a2 | 3176 | if (score_elf_rel_dyn_section (dynobj, false)) |
07d6d2b8 AM |
3177 | { |
3178 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0)) | |
0a1b45a2 | 3179 | return false; |
c3b7224a | 3180 | |
07d6d2b8 | 3181 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0)) |
0a1b45a2 | 3182 | return false; |
c3b7224a | 3183 | |
07d6d2b8 | 3184 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0)) |
0a1b45a2 | 3185 | return false; |
07d6d2b8 | 3186 | } |
c3b7224a NC |
3187 | |
3188 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_BASE_ADDRESS, 0)) | |
0a1b45a2 | 3189 | return false; |
c3b7224a NC |
3190 | |
3191 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_LOCAL_GOTNO, 0)) | |
0a1b45a2 | 3192 | return false; |
c3b7224a NC |
3193 | |
3194 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_SYMTABNO, 0)) | |
0a1b45a2 | 3195 | return false; |
c3b7224a NC |
3196 | |
3197 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_UNREFEXTNO, 0)) | |
0a1b45a2 | 3198 | return false; |
c3b7224a NC |
3199 | |
3200 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_GOTSYM, 0)) | |
0a1b45a2 | 3201 | return false; |
c3b7224a NC |
3202 | |
3203 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_HIPAGENO, 0)) | |
0a1b45a2 | 3204 | return false; |
c3b7224a NC |
3205 | } |
3206 | ||
0a1b45a2 | 3207 | return true; |
c3b7224a NC |
3208 | } |
3209 | ||
0a1b45a2 | 3210 | bool |
c3b7224a NC |
3211 | s7_bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
3212 | { | |
3213 | struct elf_link_hash_entry *h; | |
3214 | struct bfd_link_hash_entry *bh; | |
3215 | flagword flags; | |
3216 | asection *s; | |
3217 | ||
3218 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 3219 | | SEC_LINKER_CREATED | SEC_READONLY); |
c3b7224a NC |
3220 | |
3221 | /* ABI requests the .dynamic section to be read only. */ | |
3d4d4302 | 3222 | s = bfd_get_linker_section (abfd, ".dynamic"); |
c3b7224a NC |
3223 | if (s != NULL) |
3224 | { | |
fd361982 | 3225 | if (!bfd_set_section_flags (s, flags)) |
0a1b45a2 | 3226 | return false; |
c3b7224a NC |
3227 | } |
3228 | ||
3229 | /* We need to create .got section. */ | |
0a1b45a2 AM |
3230 | if (!score_elf_create_got_section (abfd, info, false)) |
3231 | return false; | |
c3b7224a | 3232 | |
0a1b45a2 AM |
3233 | if (!score_elf_rel_dyn_section (elf_hash_table (info)->dynobj, true)) |
3234 | return false; | |
c3b7224a NC |
3235 | |
3236 | /* Create .stub section. */ | |
3d4d4302 | 3237 | if (bfd_get_linker_section (abfd, SCORE_ELF_STUB_SECTION_NAME) == NULL) |
c3b7224a | 3238 | { |
3d4d4302 AM |
3239 | s = bfd_make_section_anyway_with_flags (abfd, SCORE_ELF_STUB_SECTION_NAME, |
3240 | flags | SEC_CODE); | |
c3b7224a | 3241 | if (s == NULL |
fd361982 | 3242 | || !bfd_set_section_alignment (s, 2)) |
c3b7224a | 3243 | |
0a1b45a2 | 3244 | return false; |
c3b7224a NC |
3245 | } |
3246 | ||
0e1862bb | 3247 | if (!bfd_link_pic (info)) |
c3b7224a NC |
3248 | { |
3249 | const char *name; | |
3250 | ||
3251 | name = "_DYNAMIC_LINK"; | |
3252 | bh = NULL; | |
3253 | if (!(_bfd_generic_link_add_one_symbol | |
07d6d2b8 | 3254 | (info, abfd, name, BSF_GLOBAL, bfd_abs_section_ptr, |
0a1b45a2 AM |
3255 | (bfd_vma) 0, NULL, false, get_elf_backend_data (abfd)->collect, &bh))) |
3256 | return false; | |
c3b7224a NC |
3257 | |
3258 | h = (struct elf_link_hash_entry *) bh; | |
3259 | h->non_elf = 0; | |
3260 | h->def_regular = 1; | |
3261 | h->type = STT_SECTION; | |
3262 | ||
3263 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 3264 | return false; |
c3b7224a NC |
3265 | } |
3266 | ||
0a1b45a2 | 3267 | return true; |
c3b7224a NC |
3268 | } |
3269 | ||
3270 | ||
3271 | /* Finish up dynamic symbol handling. We set the contents of various | |
3272 | dynamic sections here. */ | |
3273 | ||
0a1b45a2 | 3274 | bool |
c3b7224a | 3275 | s7_bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd, |
07d6d2b8 AM |
3276 | struct bfd_link_info *info, |
3277 | struct elf_link_hash_entry *h, | |
3278 | Elf_Internal_Sym *sym) | |
c3b7224a NC |
3279 | { |
3280 | bfd *dynobj; | |
3281 | asection *sgot; | |
3282 | struct score_got_info *g; | |
3283 | const char *name; | |
3284 | ||
3285 | dynobj = elf_hash_table (info)->dynobj; | |
3286 | ||
3287 | if (h->plt.offset != MINUS_ONE) | |
3288 | { | |
3289 | asection *s; | |
3290 | bfd_byte stub[SCORE_FUNCTION_STUB_SIZE]; | |
3291 | ||
3292 | /* This symbol has a stub. Set it up. */ | |
3293 | BFD_ASSERT (h->dynindx != -1); | |
3294 | ||
3d4d4302 | 3295 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); |
c3b7224a NC |
3296 | BFD_ASSERT (s != NULL); |
3297 | ||
3298 | /* FIXME: Can h->dynindex be more than 64K? */ | |
3299 | if (h->dynindx & 0xffff0000) | |
cf95b909 AM |
3300 | { |
3301 | _bfd_error_handler | |
3302 | (_("%pB: cannot handle more than %d dynamic symbols"), | |
3303 | output_bfd, 0xffff); | |
3304 | bfd_set_error (bfd_error_bad_value); | |
3305 | return false; | |
3306 | } | |
c3b7224a NC |
3307 | |
3308 | /* Fill the stub. */ | |
3309 | bfd_put_32 (output_bfd, STUB_LW, stub); | |
3310 | bfd_put_32 (output_bfd, STUB_MOVE, stub + 4); | |
3311 | bfd_put_32 (output_bfd, STUB_LI16 | (h->dynindx << 1), stub + 8); | |
3312 | bfd_put_32 (output_bfd, STUB_BRL, stub + 12); | |
3313 | ||
3314 | BFD_ASSERT (h->plt.offset <= s->size); | |
3315 | memcpy (s->contents + h->plt.offset, stub, SCORE_FUNCTION_STUB_SIZE); | |
3316 | ||
3317 | /* Mark the symbol as undefined. plt.offset != -1 occurs | |
07d6d2b8 | 3318 | only for the referenced symbol. */ |
c3b7224a NC |
3319 | sym->st_shndx = SHN_UNDEF; |
3320 | ||
3321 | /* The run-time linker uses the st_value field of the symbol | |
07d6d2b8 AM |
3322 | to reset the global offset table entry for this external |
3323 | to its stub address when unlinking a shared object. */ | |
c3b7224a NC |
3324 | sym->st_value = (s->output_section->vma + s->output_offset + h->plt.offset); |
3325 | } | |
3326 | ||
3327 | BFD_ASSERT (h->dynindx != -1 || h->forced_local); | |
3328 | ||
0a1b45a2 | 3329 | sgot = score_elf_got_section (dynobj, false); |
c3b7224a NC |
3330 | BFD_ASSERT (sgot != NULL); |
3331 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3332 | g = score_elf_section_data (sgot)->u.got_info; | |
3333 | BFD_ASSERT (g != NULL); | |
3334 | ||
3335 | /* Run through the global symbol table, creating GOT entries for all | |
3336 | the symbols that need them. */ | |
3337 | if (g->global_gotsym != NULL && h->dynindx >= g->global_gotsym->dynindx) | |
3338 | { | |
3339 | bfd_vma offset; | |
3340 | bfd_vma value; | |
3341 | ||
3342 | value = sym->st_value; | |
3343 | offset = score_elf_global_got_index (dynobj, h); | |
3344 | bfd_put_32 (output_bfd, value, sgot->contents + offset); | |
3345 | } | |
3346 | ||
3347 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3348 | name = h->root.root.string; | |
9637f6ef L |
3349 | if (h == elf_hash_table (info)->hdynamic |
3350 | || h == elf_hash_table (info)->hgot) | |
c3b7224a NC |
3351 | sym->st_shndx = SHN_ABS; |
3352 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
3353 | { | |
3354 | sym->st_shndx = SHN_ABS; | |
3355 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3356 | sym->st_value = 1; | |
3357 | } | |
3358 | else if (strcmp (name, GP_DISP_LABEL) == 0) | |
3359 | { | |
3360 | sym->st_shndx = SHN_ABS; | |
3361 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3362 | sym->st_value = elf_gp (output_bfd); | |
3363 | } | |
3364 | ||
0a1b45a2 | 3365 | return true; |
c3b7224a NC |
3366 | } |
3367 | ||
3368 | /* Finish up the dynamic sections. */ | |
3369 | ||
0a1b45a2 | 3370 | bool |
c3b7224a | 3371 | s7_bfd_score_elf_finish_dynamic_sections (bfd *output_bfd, |
07d6d2b8 | 3372 | struct bfd_link_info *info) |
c3b7224a NC |
3373 | { |
3374 | bfd *dynobj; | |
3375 | asection *sdyn; | |
3376 | asection *sgot; | |
3377 | asection *s; | |
3378 | struct score_got_info *g; | |
3379 | ||
3380 | dynobj = elf_hash_table (info)->dynobj; | |
3381 | ||
3d4d4302 | 3382 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
c3b7224a | 3383 | |
0a1b45a2 | 3384 | sgot = score_elf_got_section (dynobj, false); |
c3b7224a NC |
3385 | if (sgot == NULL) |
3386 | g = NULL; | |
3387 | else | |
3388 | { | |
3389 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3390 | g = score_elf_section_data (sgot)->u.got_info; | |
3391 | BFD_ASSERT (g != NULL); | |
3392 | } | |
3393 | ||
3394 | if (elf_hash_table (info)->dynamic_sections_created) | |
3395 | { | |
3396 | bfd_byte *b; | |
3397 | ||
3398 | BFD_ASSERT (sdyn != NULL); | |
3399 | BFD_ASSERT (g != NULL); | |
3400 | ||
3401 | for (b = sdyn->contents; | |
07d6d2b8 AM |
3402 | b < sdyn->contents + sdyn->size; |
3403 | b += SCORE_ELF_DYN_SIZE (dynobj)) | |
3404 | { | |
3405 | Elf_Internal_Dyn dyn; | |
3406 | const char *name; | |
3407 | size_t elemsize; | |
0a1b45a2 | 3408 | bool swap_out_p; |
07d6d2b8 AM |
3409 | |
3410 | /* Read in the current dynamic entry. */ | |
3411 | (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn); | |
3412 | ||
3413 | /* Assume that we're going to modify it and write it out. */ | |
0a1b45a2 | 3414 | swap_out_p = true; |
07d6d2b8 AM |
3415 | |
3416 | switch (dyn.d_tag) | |
3417 | { | |
3418 | case DT_RELENT: | |
3419 | dyn.d_un.d_val = SCORE_ELF_REL_SIZE (dynobj); | |
3420 | break; | |
3421 | ||
3422 | case DT_STRSZ: | |
3423 | /* Rewrite DT_STRSZ. */ | |
3424 | dyn.d_un.d_val | |
3425 | = _bfd_elf_strtab_size (elf_hash_table (info)->dynstr); | |
3426 | break; | |
3427 | ||
3428 | case DT_PLTGOT: | |
3429 | s = elf_hash_table (info)->sgot; | |
3430 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3431 | break; | |
3432 | ||
3433 | case DT_SCORE_BASE_ADDRESS: | |
3434 | s = output_bfd->sections; | |
3435 | BFD_ASSERT (s != NULL); | |
3436 | dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff; | |
3437 | break; | |
3438 | ||
3439 | case DT_SCORE_LOCAL_GOTNO: | |
3440 | dyn.d_un.d_val = g->local_gotno; | |
3441 | break; | |
3442 | ||
3443 | case DT_SCORE_UNREFEXTNO: | |
3444 | /* The index into the dynamic symbol table which is the | |
3445 | entry of the first external symbol that is not | |
3446 | referenced within the same object. */ | |
3447 | dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1; | |
3448 | break; | |
3449 | ||
3450 | case DT_SCORE_GOTSYM: | |
3451 | if (g->global_gotsym) | |
3452 | { | |
3453 | dyn.d_un.d_val = g->global_gotsym->dynindx; | |
3454 | break; | |
3455 | } | |
3456 | /* In case if we don't have global got symbols we default | |
3457 | to setting DT_SCORE_GOTSYM to the same value as | |
3458 | DT_SCORE_SYMTABNO. */ | |
1a0670f3 | 3459 | /* Fall through. */ |
c3b7224a | 3460 | |
07d6d2b8 AM |
3461 | case DT_SCORE_SYMTABNO: |
3462 | name = ".dynsym"; | |
3463 | elemsize = SCORE_ELF_SYM_SIZE (output_bfd); | |
3464 | s = bfd_get_linker_section (dynobj, name); | |
3465 | dyn.d_un.d_val = s->size / elemsize; | |
3466 | break; | |
c3b7224a | 3467 | |
07d6d2b8 AM |
3468 | case DT_SCORE_HIPAGENO: |
3469 | dyn.d_un.d_val = g->local_gotno - SCORE_RESERVED_GOTNO; | |
3470 | break; | |
c3b7224a | 3471 | |
07d6d2b8 | 3472 | default: |
0a1b45a2 | 3473 | swap_out_p = false; |
07d6d2b8 AM |
3474 | break; |
3475 | } | |
c3b7224a | 3476 | |
07d6d2b8 AM |
3477 | if (swap_out_p) |
3478 | (*get_elf_backend_data (dynobj)->s->swap_dyn_out) (dynobj, &dyn, b); | |
3479 | } | |
c3b7224a NC |
3480 | } |
3481 | ||
3482 | /* The first entry of the global offset table will be filled at | |
3483 | runtime. The second entry will be used by some runtime loaders. | |
3484 | This isn't the case of IRIX rld. */ | |
3485 | if (sgot != NULL && sgot->size > 0) | |
3486 | { | |
3487 | bfd_put_32 (output_bfd, 0, sgot->contents); | |
3488 | bfd_put_32 (output_bfd, 0x80000000, sgot->contents + SCORE_ELF_GOT_SIZE (output_bfd)); | |
3489 | } | |
3490 | ||
3491 | if (sgot != NULL) | |
3492 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize | |
3493 | = SCORE_ELF_GOT_SIZE (output_bfd); | |
3494 | ||
3495 | ||
3496 | /* We need to sort the entries of the dynamic relocation section. */ | |
0a1b45a2 | 3497 | s = score_elf_rel_dyn_section (dynobj, false); |
c3b7224a NC |
3498 | |
3499 | if (s != NULL && s->size > (bfd_vma)2 * SCORE_ELF_REL_SIZE (output_bfd)) | |
3500 | { | |
3501 | reldyn_sorting_bfd = output_bfd; | |
3502 | qsort ((Elf32_External_Rel *) s->contents + 1, s->reloc_count - 1, | |
07d6d2b8 | 3503 | sizeof (Elf32_External_Rel), score_elf_sort_dynamic_relocs); |
c3b7224a NC |
3504 | } |
3505 | ||
0a1b45a2 | 3506 | return true; |
c3b7224a NC |
3507 | } |
3508 | ||
3509 | /* This function set up the ELF section header for a BFD section in preparation for writing | |
3510 | it out. This is where the flags and type fields are set for unusual sections. */ | |
3511 | ||
0a1b45a2 | 3512 | bool |
c3b7224a | 3513 | s7_bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
07d6d2b8 AM |
3514 | Elf_Internal_Shdr *hdr, |
3515 | asection *sec) | |
c3b7224a NC |
3516 | { |
3517 | const char *name; | |
3518 | ||
fd361982 | 3519 | name = bfd_section_name (sec); |
c3b7224a NC |
3520 | |
3521 | if (strcmp (name, ".got") == 0 | |
3522 | || strcmp (name, ".srdata") == 0 | |
3523 | || strcmp (name, ".sdata") == 0 | |
3524 | || strcmp (name, ".sbss") == 0) | |
3525 | hdr->sh_flags |= SHF_SCORE_GPREL; | |
3526 | ||
0a1b45a2 | 3527 | return true; |
c3b7224a NC |
3528 | } |
3529 | ||
3530 | /* This function do additional processing on the ELF section header before writing | |
3531 | it out. This is used to set the flags and type fields for some sections. */ | |
3532 | ||
3533 | /* assign_file_positions_except_relocs() check section flag and if it is allocatable, | |
3534 | warning message will be issued. backend_fake_section is called before | |
3535 | assign_file_positions_except_relocs(); backend_section_processing after it. so, we | |
3536 | modify section flag there, but not backend_fake_section. */ | |
3537 | ||
0a1b45a2 | 3538 | bool |
c3b7224a NC |
3539 | s7_bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr) |
3540 | { | |
3541 | if (hdr->bfd_section != NULL) | |
3542 | { | |
fd361982 | 3543 | const char *name = bfd_section_name (hdr->bfd_section); |
c3b7224a NC |
3544 | |
3545 | if (strcmp (name, ".sdata") == 0) | |
07d6d2b8 AM |
3546 | { |
3547 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3548 | hdr->sh_type = SHT_PROGBITS; | |
3549 | } | |
c3b7224a | 3550 | else if (strcmp (name, ".sbss") == 0) |
07d6d2b8 AM |
3551 | { |
3552 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3553 | hdr->sh_type = SHT_NOBITS; | |
3554 | } | |
c3b7224a | 3555 | else if (strcmp (name, ".srdata") == 0) |
07d6d2b8 AM |
3556 | { |
3557 | hdr->sh_flags |= SHF_ALLOC | SHF_SCORE_GPREL; | |
3558 | hdr->sh_type = SHT_PROGBITS; | |
3559 | } | |
c3b7224a NC |
3560 | } |
3561 | ||
0a1b45a2 | 3562 | return true; |
c3b7224a NC |
3563 | } |
3564 | ||
0a1b45a2 | 3565 | bool |
c3b7224a NC |
3566 | s7_bfd_score_elf_write_section (bfd *output_bfd, asection *sec, bfd_byte *contents) |
3567 | { | |
3568 | bfd_byte *to, *from, *end; | |
3569 | int i; | |
3570 | ||
3571 | if (strcmp (sec->name, ".pdr") != 0) | |
0a1b45a2 | 3572 | return false; |
c3b7224a NC |
3573 | |
3574 | if (score_elf_section_data (sec)->u.tdata == NULL) | |
0a1b45a2 | 3575 | return false; |
c3b7224a NC |
3576 | |
3577 | to = contents; | |
3578 | end = contents + sec->size; | |
3579 | for (from = contents, i = 0; from < end; from += PDR_SIZE, i++) | |
3580 | { | |
3581 | if ((score_elf_section_data (sec)->u.tdata)[i] == 1) | |
07d6d2b8 | 3582 | continue; |
c3b7224a NC |
3583 | |
3584 | if (to != from) | |
07d6d2b8 | 3585 | memcpy (to, from, PDR_SIZE); |
c3b7224a NC |
3586 | |
3587 | to += PDR_SIZE; | |
3588 | } | |
3589 | bfd_set_section_contents (output_bfd, sec->output_section, contents, | |
07d6d2b8 | 3590 | (file_ptr) sec->output_offset, sec->size); |
c3b7224a | 3591 | |
0a1b45a2 | 3592 | return true; |
c3b7224a NC |
3593 | } |
3594 | ||
3595 | /* Copy data from a SCORE ELF indirect symbol to its direct symbol, hiding the old | |
3596 | indirect symbol. Process additional relocation information. */ | |
3597 | ||
3598 | void | |
3599 | s7_bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
07d6d2b8 AM |
3600 | struct elf_link_hash_entry *dir, |
3601 | struct elf_link_hash_entry *ind) | |
c3b7224a NC |
3602 | { |
3603 | struct score_elf_link_hash_entry *dirscore, *indscore; | |
3604 | ||
3605 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
3606 | ||
3607 | if (ind->root.type != bfd_link_hash_indirect) | |
3608 | return; | |
3609 | ||
3610 | dirscore = (struct score_elf_link_hash_entry *) dir; | |
3611 | indscore = (struct score_elf_link_hash_entry *) ind; | |
3612 | dirscore->possibly_dynamic_relocs += indscore->possibly_dynamic_relocs; | |
3613 | ||
3614 | if (indscore->readonly_reloc) | |
0a1b45a2 | 3615 | dirscore->readonly_reloc = true; |
c3b7224a NC |
3616 | |
3617 | if (indscore->no_fn_stub) | |
0a1b45a2 | 3618 | dirscore->no_fn_stub = true; |
c3b7224a NC |
3619 | } |
3620 | ||
3621 | /* Remove information about discarded functions from other sections which mention them. */ | |
3622 | ||
0a1b45a2 | 3623 | bool |
c3b7224a | 3624 | s7_bfd_score_elf_discard_info (bfd *abfd, |
07d6d2b8 AM |
3625 | struct elf_reloc_cookie *cookie, |
3626 | struct bfd_link_info *info) | |
c3b7224a NC |
3627 | { |
3628 | asection *o; | |
0a1b45a2 | 3629 | bool ret = false; |
c3b7224a NC |
3630 | unsigned char *tdata; |
3631 | size_t i, skip; | |
3632 | ||
3633 | o = bfd_get_section_by_name (abfd, ".pdr"); | |
3634 | if ((!o) || (o->size == 0) || (o->size % PDR_SIZE != 0) | |
3635 | || (o->output_section != NULL && bfd_is_abs_section (o->output_section))) | |
0a1b45a2 | 3636 | return false; |
c3b7224a NC |
3637 | |
3638 | tdata = bfd_zmalloc (o->size / PDR_SIZE); | |
3639 | if (!tdata) | |
0a1b45a2 | 3640 | return false; |
c3b7224a NC |
3641 | |
3642 | cookie->rels = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, info->keep_memory); | |
3643 | if (!cookie->rels) | |
3644 | { | |
3645 | free (tdata); | |
0a1b45a2 | 3646 | return false; |
c3b7224a NC |
3647 | } |
3648 | ||
3649 | cookie->rel = cookie->rels; | |
3650 | cookie->relend = cookie->rels + o->reloc_count; | |
3651 | ||
3652 | for (i = 0, skip = 0; i < o->size; i++) | |
3653 | { | |
3654 | if (bfd_elf_reloc_symbol_deleted_p (i * PDR_SIZE, cookie)) | |
07d6d2b8 AM |
3655 | { |
3656 | tdata[i] = 1; | |
3657 | skip++; | |
3658 | } | |
c3b7224a NC |
3659 | } |
3660 | ||
3661 | if (skip != 0) | |
3662 | { | |
3663 | score_elf_section_data (o)->u.tdata = tdata; | |
3664 | o->size -= skip * PDR_SIZE; | |
0a1b45a2 | 3665 | ret = true; |
c3b7224a NC |
3666 | } |
3667 | else | |
3668 | free (tdata); | |
3669 | ||
3670 | if (!info->keep_memory) | |
3671 | free (cookie->rels); | |
3672 | ||
3673 | return ret; | |
3674 | } | |
3675 | ||
3676 | /* Signal that discard_info() has removed the discarded relocations for this section. */ | |
3677 | ||
0a1b45a2 | 3678 | bool |
c3b7224a NC |
3679 | s7_bfd_score_elf_ignore_discarded_relocs (asection *sec) |
3680 | { | |
3681 | if (strcmp (sec->name, ".pdr") == 0) | |
0a1b45a2 AM |
3682 | return true; |
3683 | return false; | |
c3b7224a NC |
3684 | } |
3685 | ||
3686 | /* Return the section that should be marked against GC for a given | |
3687 | relocation. */ | |
3688 | ||
3689 | asection * | |
3690 | s7_bfd_score_elf_gc_mark_hook (asection *sec, | |
07d6d2b8 AM |
3691 | struct bfd_link_info *info, |
3692 | Elf_Internal_Rela *rel, | |
3693 | struct elf_link_hash_entry *h, | |
3694 | Elf_Internal_Sym *sym) | |
c3b7224a NC |
3695 | { |
3696 | if (h != NULL) | |
3697 | switch (ELF32_R_TYPE (rel->r_info)) | |
3698 | { | |
3699 | case R_SCORE_GNU_VTINHERIT: | |
3700 | case R_SCORE_GNU_VTENTRY: | |
07d6d2b8 | 3701 | return NULL; |
c3b7224a NC |
3702 | } |
3703 | ||
3704 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
3705 | } | |
3706 | ||
3707 | /* Support for core dump NOTE sections. */ | |
3708 | ||
0a1b45a2 | 3709 | bool |
c3b7224a NC |
3710 | s7_bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
3711 | { | |
3712 | int offset; | |
3713 | unsigned int raw_size; | |
3714 | ||
3715 | switch (note->descsz) | |
3716 | { | |
3717 | default: | |
0a1b45a2 | 3718 | return false; |
07d6d2b8 | 3719 | case 272: /* Linux/Score elf_prstatus */ |
c3b7224a NC |
3720 | |
3721 | /* pr_cursig */ | |
228e534f | 3722 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
c3b7224a NC |
3723 | |
3724 | /* pr_pid */ | |
228e534f | 3725 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
c3b7224a NC |
3726 | |
3727 | /* pr_reg */ | |
3728 | offset = 72; | |
3729 | ||
3730 | /* sizeof(elf_gregset_t) */ | |
3731 | raw_size = 196; | |
3732 | ||
3733 | break; | |
3734 | } | |
3735 | ||
3736 | /* Make a ".reg/999" section. */ | |
228e534f AM |
3737 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size, |
3738 | note->descpos + offset); | |
c3b7224a NC |
3739 | } |
3740 | ||
0a1b45a2 | 3741 | bool |
c3b7224a NC |
3742 | s7_bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
3743 | { | |
3744 | switch (note->descsz) | |
3745 | { | |
3746 | default: | |
0a1b45a2 | 3747 | return false; |
c3b7224a | 3748 | |
07d6d2b8 | 3749 | case 128: /* Linux/Score elf_prpsinfo. */ |
c3b7224a | 3750 | /* pr_fname */ |
228e534f AM |
3751 | elf_tdata (abfd)->core->program |
3752 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
c3b7224a NC |
3753 | |
3754 | /* pr_psargs */ | |
228e534f AM |
3755 | elf_tdata (abfd)->core->command |
3756 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
c3b7224a NC |
3757 | break; |
3758 | } | |
3759 | ||
3760 | /* Note that for some reason, a spurious space is tacked | |
3761 | onto the end of the args in some (at least one anyway) | |
3762 | implementations, so strip it off if it exists. */ | |
3763 | ||
3764 | { | |
228e534f | 3765 | char *command = elf_tdata (abfd)->core->command; |
c3b7224a NC |
3766 | int n = strlen (command); |
3767 | ||
3768 | if (0 < n && command[n - 1] == ' ') | |
3769 | command[n - 1] = '\0'; | |
3770 | } | |
3771 | ||
0a1b45a2 | 3772 | return true; |
c3b7224a NC |
3773 | } |
3774 | ||
3775 | ||
3776 | /* Score BFD functions. */ | |
3777 | ||
3778 | reloc_howto_type * | |
3779 | s7_elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) | |
3780 | { | |
3781 | unsigned int i; | |
3782 | ||
3783 | for (i = 0; i < ARRAY_SIZE (elf32_score_reloc_map); i++) | |
3784 | if (elf32_score_reloc_map[i].bfd_reloc_val == code) | |
3785 | return &elf32_score_howto_table[elf32_score_reloc_map[i].elf_reloc_val]; | |
3786 | ||
3787 | return NULL; | |
3788 | } | |
3789 | ||
0a1b45a2 | 3790 | bool |
c3b7224a NC |
3791 | s7_elf32_score_print_private_bfd_data (bfd *abfd, void * ptr) |
3792 | { | |
3793 | FILE *file = (FILE *) ptr; | |
3794 | ||
3795 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
3796 | ||
3797 | /* Print normal ELF private data. */ | |
3798 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
3799 | ||
3800 | /* xgettext:c-format */ | |
3801 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
3802 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_PIC) | |
3803 | { | |
3804 | fprintf (file, _(" [pic]")); | |
3805 | } | |
3806 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_FIXDEP) | |
3807 | { | |
3808 | fprintf (file, _(" [fix dep]")); | |
3809 | } | |
3810 | fputc ('\n', file); | |
3811 | ||
0a1b45a2 | 3812 | return true; |
c3b7224a NC |
3813 | } |
3814 | ||
0a1b45a2 | 3815 | bool |
50e03d47 | 3816 | s7_elf32_score_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
c3b7224a | 3817 | { |
50e03d47 | 3818 | bfd *obfd = info->output_bfd; |
c3b7224a NC |
3819 | flagword in_flags; |
3820 | flagword out_flags; | |
3821 | ||
50e03d47 | 3822 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
0a1b45a2 | 3823 | return false; |
c3b7224a | 3824 | |
6b728d32 AM |
3825 | /* FIXME: What should be checked when linking shared libraries? */ |
3826 | if ((ibfd->flags & DYNAMIC) != 0) | |
0a1b45a2 | 3827 | return true; |
6b728d32 | 3828 | |
c3b7224a NC |
3829 | in_flags = elf_elfheader (ibfd)->e_flags; |
3830 | out_flags = elf_elfheader (obfd)->e_flags; | |
3831 | ||
3832 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3833 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 3834 | return true; |
c3b7224a NC |
3835 | |
3836 | in_flags = elf_elfheader (ibfd)->e_flags; | |
3837 | out_flags = elf_elfheader (obfd)->e_flags; | |
3838 | ||
3839 | if (! elf_flags_init (obfd)) | |
3840 | { | |
0a1b45a2 | 3841 | elf_flags_init (obfd) = true; |
c3b7224a NC |
3842 | elf_elfheader (obfd)->e_flags = in_flags; |
3843 | ||
3844 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
07d6d2b8 AM |
3845 | && bfd_get_arch_info (obfd)->the_default) |
3846 | { | |
3847 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
3848 | } | |
c3b7224a | 3849 | |
0a1b45a2 | 3850 | return true; |
c3b7224a NC |
3851 | } |
3852 | ||
3853 | if (((in_flags & EF_SCORE_PIC) != 0) != ((out_flags & EF_SCORE_PIC) != 0)) | |
3854 | { | |
871b3ab2 | 3855 | _bfd_error_handler (_("%pB: warning: linking PIC files with non-PIC files"), ibfd); |
c3b7224a NC |
3856 | } |
3857 | ||
3858 | /* Maybe dependency fix compatibility should be checked here. */ | |
0a1b45a2 | 3859 | return true; |
c3b7224a NC |
3860 | } |
3861 | ||
0a1b45a2 | 3862 | bool |
c3b7224a NC |
3863 | s7_elf32_score_new_section_hook (bfd *abfd, asection *sec) |
3864 | { | |
3865 | struct _score_elf_section_data *sdata; | |
986f0783 | 3866 | size_t amt = sizeof (*sdata); |
c3b7224a NC |
3867 | |
3868 | sdata = bfd_zalloc (abfd, amt); | |
3869 | if (sdata == NULL) | |
0a1b45a2 | 3870 | return false; |
c3b7224a NC |
3871 | sec->used_by_bfd = sdata; |
3872 | ||
3873 | return _bfd_elf_new_section_hook (abfd, sec); | |
3874 | } | |
3875 | ||
d00dd7dc | 3876 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |