Commit | Line | Data |
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1c0d3aa6 | 1 | /* 32-bit ELF support for S+core. |
dbaa2011 | 2 | Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
7686d77d | 3 | Free Software Foundation, Inc. |
1c0d3aa6 | 4 | Contributed by |
c3b7224a | 5 | Brain.lin (brain.lin@sunplusct.com) |
1c0d3aa6 NC |
6 | Mei Ligang (ligang@sunnorth.com.cn) |
7 | Pei-Lin Tsai (pltsai@sunplus.com) | |
8 | ||
9 | This file is part of BFD, the Binary File Descriptor library. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 13 | the Free Software Foundation; either version 3 of the License, or |
1c0d3aa6 NC |
14 | (at your option) any later version. |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
23 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
24 | MA 02110-1301, USA. */ | |
1c0d3aa6 | 25 | |
1c0d3aa6 | 26 | #include "sysdep.h" |
3db64b00 | 27 | #include "bfd.h" |
1c0d3aa6 NC |
28 | #include "libbfd.h" |
29 | #include "libiberty.h" | |
30 | #include "elf-bfd.h" | |
31 | #include "elf/score.h" | |
32 | #include "elf/common.h" | |
33 | #include "elf/internal.h" | |
34 | #include "hashtab.h" | |
c3b7224a | 35 | #include "elf32-score.h" |
1c0d3aa6 NC |
36 | |
37 | ||
c3b7224a NC |
38 | int score3 = 0; |
39 | int score7 = 1; | |
1c0d3aa6 | 40 | |
1c0d3aa6 NC |
41 | /* The SCORE ELF linker needs additional information for each symbol in |
42 | the global hash table. */ | |
1c0d3aa6 NC |
43 | struct score_elf_link_hash_entry |
44 | { | |
45 | struct elf_link_hash_entry root; | |
46 | ||
47 | /* Number of R_SCORE_ABS32, R_SCORE_REL32 relocs against this symbol. */ | |
48 | unsigned int possibly_dynamic_relocs; | |
49 | ||
50 | /* If the R_SCORE_ABS32, R_SCORE_REL32 reloc is against a readonly section. */ | |
51 | bfd_boolean readonly_reloc; | |
52 | ||
53 | /* We must not create a stub for a symbol that has relocations related to | |
54 | taking the function's address, i.e. any but R_SCORE_CALL15 ones. */ | |
55 | bfd_boolean no_fn_stub; | |
56 | ||
57 | /* Are we forced local? This will only be set if we have converted | |
58 | the initial global GOT entry to a local GOT entry. */ | |
59 | bfd_boolean forced_local; | |
60 | }; | |
61 | ||
62 | /* Traverse a score ELF linker hash table. */ | |
63 | #define score_elf_link_hash_traverse(table, func, info) \ | |
64 | (elf_link_hash_traverse \ | |
4dfe6ac6 | 65 | ((table), \ |
1c0d3aa6 NC |
66 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
67 | (info))) | |
68 | ||
1c0d3aa6 NC |
69 | /* This structure is used to hold .got entries while estimating got sizes. */ |
70 | struct score_got_entry | |
71 | { | |
72 | /* The input bfd in which the symbol is defined. */ | |
73 | bfd *abfd; | |
74 | /* The index of the symbol, as stored in the relocation r_info, if | |
75 | we have a local symbol; -1 otherwise. */ | |
76 | long symndx; | |
77 | union | |
78 | { | |
79 | /* If abfd == NULL, an address that must be stored in the got. */ | |
80 | bfd_vma address; | |
81 | /* If abfd != NULL && symndx != -1, the addend of the relocation | |
82 | that should be added to the symbol value. */ | |
83 | bfd_vma addend; | |
84 | /* If abfd != NULL && symndx == -1, the hash table entry | |
85 | corresponding to a global symbol in the got (or, local, if | |
86 | h->forced_local). */ | |
87 | struct score_elf_link_hash_entry *h; | |
88 | } d; | |
89 | ||
90 | /* The offset from the beginning of the .got section to the entry | |
91 | corresponding to this symbol+addend. If it's a global symbol | |
92 | whose offset is yet to be decided, it's going to be -1. */ | |
93 | long gotidx; | |
94 | }; | |
95 | ||
96 | /* This structure is passed to score_elf_sort_hash_table_f when sorting | |
97 | the dynamic symbols. */ | |
98 | ||
99 | struct score_elf_hash_sort_data | |
100 | { | |
101 | /* The symbol in the global GOT with the lowest dynamic symbol table index. */ | |
102 | struct elf_link_hash_entry *low; | |
103 | /* The least dynamic symbol table index corresponding to a symbol with a GOT entry. */ | |
104 | long min_got_dynindx; | |
105 | /* The greatest dynamic symbol table index corresponding to a symbol | |
106 | with a GOT entry that is not referenced (e.g., a dynamic symbol | |
107 | with dynamic relocations pointing to it from non-primary GOTs). */ | |
108 | long max_unref_got_dynindx; | |
109 | /* The greatest dynamic symbol table index not corresponding to a | |
110 | symbol without a GOT entry. */ | |
111 | long max_non_got_dynindx; | |
112 | }; | |
113 | ||
114 | struct score_got_info | |
115 | { | |
116 | /* The global symbol in the GOT with the lowest index in the dynamic | |
117 | symbol table. */ | |
118 | struct elf_link_hash_entry *global_gotsym; | |
119 | /* The number of global .got entries. */ | |
120 | unsigned int global_gotno; | |
121 | /* The number of local .got entries. */ | |
122 | unsigned int local_gotno; | |
123 | /* The number of local .got entries we have used. */ | |
124 | unsigned int assigned_gotno; | |
125 | /* A hash table holding members of the got. */ | |
126 | struct htab *got_entries; | |
127 | /* In multi-got links, a pointer to the next got (err, rather, most | |
128 | of the time, it points to the previous got). */ | |
129 | struct score_got_info *next; | |
130 | }; | |
131 | ||
132 | /* A structure used to count GOT entries, for GOT entry or ELF symbol table traversal. */ | |
133 | struct _score_elf_section_data | |
134 | { | |
135 | struct bfd_elf_section_data elf; | |
136 | union | |
137 | { | |
138 | struct score_got_info *got_info; | |
139 | bfd_byte *tdata; | |
140 | } | |
141 | u; | |
142 | }; | |
143 | ||
144 | #define score_elf_section_data(sec) \ | |
145 | ((struct _score_elf_section_data *) elf_section_data (sec)) | |
146 | ||
147 | /* The size of a symbol-table entry. */ | |
148 | #define SCORE_ELF_SYM_SIZE(abfd) \ | |
149 | (get_elf_backend_data (abfd)->s->sizeof_sym) | |
150 | ||
151 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
152 | from smaller values. Start with zero, widen, *then* decrement. */ | |
153 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
154 | #define MINUS_TWO (((bfd_vma)0) - 2) | |
155 | ||
156 | #define PDR_SIZE 32 | |
157 | ||
158 | ||
159 | /* The number of local .got entries we reserve. */ | |
160 | #define SCORE_RESERVED_GOTNO (2) | |
161 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
162 | ||
163 | /* The offset of $gp from the beginning of the .got section. */ | |
164 | #define ELF_SCORE_GP_OFFSET(abfd) (0x3ff0) | |
165 | /* The maximum size of the GOT for it to be addressable using 15-bit offsets from $gp. */ | |
166 | #define SCORE_ELF_GOT_MAX_SIZE(abfd) (ELF_SCORE_GP_OFFSET(abfd) + 0x3fff) | |
167 | ||
168 | #define SCORE_ELF_STUB_SECTION_NAME (".SCORE.stub") | |
169 | #define SCORE_FUNCTION_STUB_SIZE (16) | |
170 | ||
c3b7224a | 171 | #define STUB_LW 0xc3bcc010 /* lw r29, [r28, -0x3ff0] */ |
1c0d3aa6 NC |
172 | #define STUB_MOVE 0x8363bc56 /* mv r27, r3 */ |
173 | #define STUB_LI16 0x87548000 /* ori r26, .dynsym_index */ | |
174 | #define STUB_BRL 0x801dbc09 /* brl r29 */ | |
175 | ||
176 | #define SCORE_ELF_GOT_SIZE(abfd) \ | |
177 | (get_elf_backend_data (abfd)->s->arch_size / 8) | |
178 | ||
179 | #define SCORE_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ | |
180 | (_bfd_elf_add_dynamic_entry (info, (bfd_vma) tag, (bfd_vma) val)) | |
181 | ||
182 | /* The size of an external dynamic table entry. */ | |
183 | #define SCORE_ELF_DYN_SIZE(abfd) \ | |
184 | (get_elf_backend_data (abfd)->s->sizeof_dyn) | |
185 | ||
186 | /* The size of an external REL relocation. */ | |
187 | #define SCORE_ELF_REL_SIZE(abfd) \ | |
188 | (get_elf_backend_data (abfd)->s->sizeof_rel) | |
189 | ||
190 | /* The default alignment for sections, as a power of two. */ | |
191 | #define SCORE_ELF_LOG_FILE_ALIGN(abfd)\ | |
192 | (get_elf_backend_data (abfd)->s->log_file_align) | |
193 | ||
1c0d3aa6 NC |
194 | static bfd_byte *hi16_rel_addr; |
195 | ||
196 | /* This will be used when we sort the dynamic relocation records. */ | |
197 | static bfd *reldyn_sorting_bfd; | |
198 | ||
199 | /* SCORE ELF uses two common sections. One is the usual one, and the | |
200 | other is for small objects. All the small objects are kept | |
201 | together, and then referenced via the gp pointer, which yields | |
202 | faster assembler code. This is what we use for the small common | |
203 | section. This approach is copied from ecoff.c. */ | |
204 | static asection score_elf_scom_section; | |
205 | static asymbol score_elf_scom_symbol; | |
206 | static asymbol *score_elf_scom_symbol_ptr; | |
207 | ||
c3b7224a NC |
208 | static bfd_vma |
209 | score_bfd_get_16 (bfd *abfd, const void *data) | |
210 | { | |
211 | return bfd_get_16 (abfd, data); | |
212 | } | |
213 | ||
214 | static bfd_vma | |
215 | score3_bfd_getl32 (const void *p) | |
216 | { | |
217 | const bfd_byte *addr = p; | |
218 | unsigned long v; | |
219 | ||
220 | v = (unsigned long) addr[2]; | |
221 | v |= (unsigned long) addr[3] << 8; | |
222 | v |= (unsigned long) addr[0] << 16; | |
223 | v |= (unsigned long) addr[1] << 24; | |
224 | return v; | |
225 | } | |
226 | ||
227 | static bfd_vma | |
228 | score3_bfd_getl48 (const void *p) | |
229 | { | |
230 | const bfd_byte *addr = p; | |
231 | unsigned long long v; | |
232 | ||
233 | v = (unsigned long long) addr[4]; | |
234 | v |= (unsigned long long) addr[5] << 8; | |
235 | v |= (unsigned long long) addr[2] << 16; | |
236 | v |= (unsigned long long) addr[3] << 24; | |
237 | v |= (unsigned long long) addr[0] << 32; | |
238 | v |= (unsigned long long) addr[1] << 40; | |
239 | return v; | |
240 | } | |
241 | ||
242 | static bfd_vma | |
243 | score_bfd_get_32 (bfd *abfd, const void *data) | |
244 | { | |
245 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
246 | return score3_bfd_getl32 (data); | |
247 | else | |
248 | return bfd_get_32 (abfd, data); | |
249 | } | |
250 | ||
251 | static bfd_vma | |
252 | score_bfd_get_48 (bfd *abfd, const void *p) | |
253 | { | |
254 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
255 | return score3_bfd_getl48 (p); | |
256 | else | |
257 | return bfd_get_bits (p, 48, 1); | |
258 | } | |
259 | ||
260 | static void | |
261 | score_bfd_put_16 (bfd *abfd, bfd_vma addr, void *data) | |
262 | { | |
263 | return bfd_put_16 (abfd, addr, data); | |
264 | } | |
265 | ||
266 | static void | |
267 | score3_bfd_putl32 (bfd_vma data, void *p) | |
268 | { | |
269 | bfd_byte *addr = p; | |
270 | addr[0] = (data >> 16) & 0xff; | |
271 | addr[1] = (data >> 24) & 0xff; | |
272 | addr[2] = data & 0xff; | |
273 | addr[3] = (data >> 8) & 0xff; | |
274 | } | |
275 | ||
276 | static void | |
277 | score3_bfd_putl48 (bfd_vma data, void *p) | |
278 | { | |
279 | bfd_byte *addr = p; | |
280 | addr[0] = (data >> 32) & 0xff; | |
281 | addr[1] = (data >> 40) & 0xff; | |
282 | addr[2] = (data >> 16) & 0xff; | |
283 | addr[3] = (data >> 24) & 0xff; | |
284 | addr[4] = data & 0xff; | |
285 | addr[5] = (data >> 8) & 0xff; | |
286 | } | |
287 | ||
288 | static void | |
289 | score_bfd_put_32 (bfd *abfd, bfd_vma addr, void *data) | |
290 | { | |
291 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
292 | return score3_bfd_putl32 (addr, data); | |
293 | else | |
294 | return bfd_put_32 (abfd, addr, data); | |
295 | } | |
296 | ||
297 | static void | |
298 | score_bfd_put_48 (bfd *abfd, bfd_vma val, void *p) | |
299 | { | |
300 | if (/* score3 && */ abfd->xvec->byteorder == BFD_ENDIAN_LITTLE) | |
301 | return score3_bfd_putl48 (val, p); | |
302 | else | |
303 | return bfd_put_bits (val, p, 48, 1); | |
304 | } | |
305 | ||
1c0d3aa6 NC |
306 | static bfd_reloc_status_type |
307 | score_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
c3b7224a NC |
308 | arelent *reloc_entry, |
309 | asymbol *symbol ATTRIBUTE_UNUSED, | |
310 | void * data, | |
311 | asection *input_section ATTRIBUTE_UNUSED, | |
312 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
313 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
314 | { |
315 | hi16_rel_addr = (bfd_byte *) data + reloc_entry->address; | |
316 | return bfd_reloc_ok; | |
317 | } | |
318 | ||
319 | static bfd_reloc_status_type | |
320 | score_elf_lo16_reloc (bfd *abfd, | |
c3b7224a NC |
321 | arelent *reloc_entry, |
322 | asymbol *symbol ATTRIBUTE_UNUSED, | |
323 | void * data, | |
324 | asection *input_section, | |
325 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
326 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
327 | { |
328 | bfd_vma addend = 0, offset = 0; | |
329 | unsigned long val; | |
330 | unsigned long hi16_offset, hi16_value, uvalue; | |
331 | ||
c3b7224a | 332 | hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr); |
1c0d3aa6 | 333 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; |
c3b7224a | 334 | addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
335 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
336 | val = reloc_entry->addend; | |
337 | if (reloc_entry->address > input_section->size) | |
338 | return bfd_reloc_outofrange; | |
339 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
340 | hi16_offset = (uvalue >> 16) << 1; | |
341 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 342 | score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr); |
1c0d3aa6 NC |
343 | offset = (uvalue & 0xffff) << 1; |
344 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 345 | score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
346 | return bfd_reloc_ok; |
347 | } | |
348 | ||
349 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a | |
350 | dangerous relocation. */ | |
351 | ||
352 | static bfd_boolean | |
353 | score_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) | |
354 | { | |
355 | unsigned int count; | |
356 | asymbol **sym; | |
357 | unsigned int i; | |
358 | ||
359 | /* If we've already figured out what GP will be, just return it. */ | |
360 | *pgp = _bfd_get_gp_value (output_bfd); | |
361 | if (*pgp) | |
362 | return TRUE; | |
363 | ||
364 | count = bfd_get_symcount (output_bfd); | |
365 | sym = bfd_get_outsymbols (output_bfd); | |
366 | ||
367 | /* The linker script will have created a symbol named `_gp' with the | |
368 | appropriate value. */ | |
369 | if (sym == NULL) | |
370 | i = count; | |
371 | else | |
372 | { | |
373 | for (i = 0; i < count; i++, sym++) | |
c3b7224a NC |
374 | { |
375 | const char *name; | |
1c0d3aa6 | 376 | |
c3b7224a NC |
377 | name = bfd_asymbol_name (*sym); |
378 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
379 | { | |
380 | *pgp = bfd_asymbol_value (*sym); | |
381 | _bfd_set_gp_value (output_bfd, *pgp); | |
382 | break; | |
383 | } | |
384 | } | |
1c0d3aa6 NC |
385 | } |
386 | ||
387 | if (i >= count) | |
388 | { | |
389 | /* Only get the error once. */ | |
390 | *pgp = 4; | |
391 | _bfd_set_gp_value (output_bfd, *pgp); | |
392 | return FALSE; | |
393 | } | |
394 | ||
395 | return TRUE; | |
396 | } | |
397 | ||
398 | /* We have to figure out the gp value, so that we can adjust the | |
399 | symbol value correctly. We look up the symbol _gp in the output | |
400 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
401 | target data. We don't need to adjust the symbol value for an | |
402 | external symbol if we are producing relocatable output. */ | |
1c0d3aa6 NC |
403 | static bfd_reloc_status_type |
404 | score_elf_final_gp (bfd *output_bfd, | |
c3b7224a NC |
405 | asymbol *symbol, |
406 | bfd_boolean relocatable, | |
407 | char **error_message, | |
408 | bfd_vma *pgp) | |
1c0d3aa6 NC |
409 | { |
410 | if (bfd_is_und_section (symbol->section) | |
411 | && ! relocatable) | |
412 | { | |
413 | *pgp = 0; | |
414 | return bfd_reloc_undefined; | |
415 | } | |
416 | ||
417 | *pgp = _bfd_get_gp_value (output_bfd); | |
418 | if (*pgp == 0 | |
419 | && (! relocatable | |
c3b7224a | 420 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
1c0d3aa6 NC |
421 | { |
422 | if (relocatable) | |
c3b7224a NC |
423 | { |
424 | /* Make up a value. */ | |
425 | *pgp = symbol->section->output_section->vma + 0x4000; | |
426 | _bfd_set_gp_value (output_bfd, *pgp); | |
427 | } | |
1c0d3aa6 | 428 | else if (!score_elf_assign_gp (output_bfd, pgp)) |
c3b7224a NC |
429 | { |
430 | *error_message = | |
431 | (char *) _("GP relative relocation when _gp not defined"); | |
432 | return bfd_reloc_dangerous; | |
433 | } | |
1c0d3aa6 NC |
434 | } |
435 | ||
436 | return bfd_reloc_ok; | |
437 | } | |
438 | ||
439 | static bfd_reloc_status_type | |
440 | score_elf_gprel15_with_gp (bfd *abfd, | |
c3b7224a NC |
441 | asymbol *symbol, |
442 | arelent *reloc_entry, | |
443 | asection *input_section, | |
444 | bfd_boolean relocateable, | |
445 | void * data, | |
446 | bfd_vma gp ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
447 | { |
448 | bfd_vma relocation; | |
449 | unsigned long insn; | |
450 | ||
451 | if (bfd_is_com_section (symbol->section)) | |
452 | relocation = 0; | |
453 | else | |
454 | relocation = symbol->value; | |
455 | ||
456 | relocation += symbol->section->output_section->vma; | |
457 | relocation += symbol->section->output_offset; | |
458 | if (reloc_entry->address > input_section->size) | |
459 | return bfd_reloc_outofrange; | |
460 | ||
c3b7224a | 461 | insn = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
462 | if (((reloc_entry->addend & 0xffffc000) != 0) |
463 | && ((reloc_entry->addend & 0xffffc000) != 0xffffc000)) | |
464 | return bfd_reloc_overflow; | |
465 | ||
466 | insn = (insn & ~0x7fff) | (reloc_entry->addend & 0x7fff); | |
c3b7224a | 467 | score_bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
468 | if (relocateable) |
469 | reloc_entry->address += input_section->output_offset; | |
470 | ||
471 | return bfd_reloc_ok; | |
472 | } | |
473 | ||
474 | static bfd_reloc_status_type | |
475 | gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry, | |
c3b7224a NC |
476 | asection *input_section, bfd_boolean relocatable, |
477 | void *data, bfd_vma gp) | |
1c0d3aa6 NC |
478 | { |
479 | bfd_vma relocation; | |
480 | bfd_vma val; | |
481 | ||
482 | if (bfd_is_com_section (symbol->section)) | |
483 | relocation = 0; | |
484 | else | |
485 | relocation = symbol->value; | |
486 | ||
487 | relocation += symbol->section->output_section->vma; | |
488 | relocation += symbol->section->output_offset; | |
489 | ||
490 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
491 | return bfd_reloc_outofrange; | |
492 | ||
493 | /* Set val to the offset into the section or symbol. */ | |
494 | val = reloc_entry->addend; | |
495 | ||
496 | if (reloc_entry->howto->partial_inplace) | |
c3b7224a | 497 | val += score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
498 | |
499 | /* Adjust val for the final section location and GP value. If we | |
500 | are producing relocatable output, we don't want to do this for | |
501 | an external symbol. */ | |
502 | if (! relocatable | |
503 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
504 | val += relocation - gp; | |
505 | ||
506 | if (reloc_entry->howto->partial_inplace) | |
c3b7224a | 507 | score_bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
508 | else |
509 | reloc_entry->addend = val; | |
510 | ||
511 | if (relocatable) | |
512 | reloc_entry->address += input_section->output_offset; | |
513 | ||
514 | return bfd_reloc_ok; | |
515 | } | |
516 | ||
517 | static bfd_reloc_status_type | |
518 | score_elf_gprel15_reloc (bfd *abfd, | |
c3b7224a NC |
519 | arelent *reloc_entry, |
520 | asymbol *symbol, | |
521 | void * data, | |
522 | asection *input_section, | |
523 | bfd *output_bfd, | |
524 | char **error_message) | |
1c0d3aa6 NC |
525 | { |
526 | bfd_boolean relocateable; | |
527 | bfd_reloc_status_type ret; | |
528 | bfd_vma gp; | |
529 | ||
c3b7224a | 530 | if (output_bfd != NULL |
1c0d3aa6 NC |
531 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) |
532 | { | |
533 | reloc_entry->address += input_section->output_offset; | |
534 | return bfd_reloc_ok; | |
535 | } | |
c3b7224a | 536 | if (output_bfd != NULL) |
1c0d3aa6 NC |
537 | relocateable = TRUE; |
538 | else | |
539 | { | |
540 | relocateable = FALSE; | |
541 | output_bfd = symbol->section->output_section->owner; | |
542 | } | |
543 | ||
544 | ret = score_elf_final_gp (output_bfd, symbol, relocateable, error_message, &gp); | |
545 | if (ret != bfd_reloc_ok) | |
546 | return ret; | |
547 | ||
548 | return score_elf_gprel15_with_gp (abfd, symbol, reloc_entry, | |
549 | input_section, relocateable, data, gp); | |
550 | } | |
551 | ||
552 | /* Do a R_SCORE_GPREL32 relocation. This is a 32 bit value which must | |
553 | become the offset from the gp register. */ | |
554 | ||
555 | static bfd_reloc_status_type | |
556 | score_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
c3b7224a NC |
557 | void *data, asection *input_section, bfd *output_bfd, |
558 | char **error_message) | |
1c0d3aa6 NC |
559 | { |
560 | bfd_boolean relocatable; | |
561 | bfd_reloc_status_type ret; | |
562 | bfd_vma gp; | |
563 | ||
564 | /* R_SCORE_GPREL32 relocations are defined for local symbols only. */ | |
565 | if (output_bfd != NULL | |
566 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
567 | && (symbol->flags & BSF_LOCAL) != 0) | |
568 | { | |
569 | *error_message = (char *) | |
c3b7224a | 570 | _("32bits gp relative relocation occurs for an external symbol"); |
1c0d3aa6 NC |
571 | return bfd_reloc_outofrange; |
572 | } | |
573 | ||
574 | if (output_bfd != NULL) | |
575 | relocatable = TRUE; | |
576 | else | |
577 | { | |
578 | relocatable = FALSE; | |
579 | output_bfd = symbol->section->output_section->owner; | |
580 | } | |
581 | ||
582 | ret = score_elf_final_gp (output_bfd, symbol, relocatable, error_message, &gp); | |
583 | if (ret != bfd_reloc_ok) | |
584 | return ret; | |
585 | ||
c3b7224a | 586 | gp = 0; |
1c0d3aa6 | 587 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, |
c3b7224a | 588 | relocatable, data, gp); |
1c0d3aa6 NC |
589 | } |
590 | ||
591 | /* A howto special_function for R_SCORE_GOT15 relocations. This is just | |
592 | like any other 16-bit relocation when applied to global symbols, but is | |
593 | treated in the same as R_SCORE_HI16 when applied to local symbols. */ | |
1c0d3aa6 NC |
594 | static bfd_reloc_status_type |
595 | score_elf_got15_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
c3b7224a NC |
596 | void *data, asection *input_section, |
597 | bfd *output_bfd, char **error_message) | |
1c0d3aa6 NC |
598 | { |
599 | if ((symbol->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
600 | || bfd_is_und_section (bfd_get_section (symbol)) | |
601 | || bfd_is_com_section (bfd_get_section (symbol))) | |
602 | /* The relocation is against a global symbol. */ | |
603 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
c3b7224a NC |
604 | input_section, output_bfd, |
605 | error_message); | |
1c0d3aa6 NC |
606 | |
607 | return score_elf_hi16_reloc (abfd, reloc_entry, symbol, data, | |
c3b7224a | 608 | input_section, output_bfd, error_message); |
1c0d3aa6 NC |
609 | } |
610 | ||
611 | static bfd_reloc_status_type | |
612 | score_elf_got_lo16_reloc (bfd *abfd, | |
c3b7224a NC |
613 | arelent *reloc_entry, |
614 | asymbol *symbol ATTRIBUTE_UNUSED, | |
615 | void * data, | |
616 | asection *input_section, | |
617 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
618 | char **error_message ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
619 | { |
620 | bfd_vma addend = 0, offset = 0; | |
0150d082 ML |
621 | signed long val; |
622 | signed long hi16_offset, hi16_value, uvalue; | |
1c0d3aa6 | 623 | |
c3b7224a | 624 | hi16_value = score_bfd_get_32 (abfd, hi16_rel_addr); |
1c0d3aa6 | 625 | hi16_offset = ((((hi16_value >> 16) & 0x3) << 15) | (hi16_value & 0x7fff)) >> 1; |
c3b7224a | 626 | addend = score_bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
627 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
628 | val = reloc_entry->addend; | |
629 | if (reloc_entry->address > input_section->size) | |
630 | return bfd_reloc_outofrange; | |
631 | uvalue = ((hi16_offset << 16) | (offset & 0xffff)) + val; | |
0150d082 ML |
632 | if ((uvalue > -0x8000) && (uvalue < 0x7fff)) |
633 | hi16_offset = 0; | |
634 | else | |
635 | hi16_offset = (uvalue >> 16) & 0x7fff; | |
1c0d3aa6 | 636 | hi16_value = (hi16_value & ~0x37fff) | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); |
c3b7224a | 637 | score_bfd_put_32 (abfd, hi16_value, hi16_rel_addr); |
1c0d3aa6 NC |
638 | offset = (uvalue & 0xffff) << 1; |
639 | addend = (addend & ~0x37fff) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 640 | score_bfd_put_32 (abfd, addend, (bfd_byte *) data + reloc_entry->address); |
1c0d3aa6 NC |
641 | return bfd_reloc_ok; |
642 | } | |
643 | ||
644 | static reloc_howto_type elf32_score_howto_table[] = | |
645 | { | |
646 | /* No relocation. */ | |
647 | HOWTO (R_SCORE_NONE, /* type */ | |
648 | 0, /* rightshift */ | |
649 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
650 | 0, /* bitsize */ | |
651 | FALSE, /* pc_relative */ | |
652 | 0, /* bitpos */ | |
653 | complain_overflow_dont,/* complain_on_overflow */ | |
654 | bfd_elf_generic_reloc, /* special_function */ | |
655 | "R_SCORE_NONE", /* name */ | |
656 | FALSE, /* partial_inplace */ | |
657 | 0, /* src_mask */ | |
658 | 0, /* dst_mask */ | |
659 | FALSE), /* pcrel_offset */ | |
660 | ||
661 | /* R_SCORE_HI16 */ | |
662 | HOWTO (R_SCORE_HI16, /* type */ | |
663 | 0, /* rightshift */ | |
664 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
665 | 16, /* bitsize */ | |
666 | FALSE, /* pc_relative */ | |
667 | 1, /* bitpos */ | |
668 | complain_overflow_dont,/* complain_on_overflow */ | |
c3b7224a | 669 | score_elf_hi16_reloc, /* special_function */ |
1c0d3aa6 NC |
670 | "R_SCORE_HI16", /* name */ |
671 | TRUE, /* partial_inplace */ | |
672 | 0x37fff, /* src_mask */ | |
673 | 0x37fff, /* dst_mask */ | |
674 | FALSE), /* pcrel_offset */ | |
675 | ||
676 | /* R_SCORE_LO16 */ | |
677 | HOWTO (R_SCORE_LO16, /* type */ | |
678 | 0, /* rightshift */ | |
679 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
680 | 16, /* bitsize */ | |
681 | FALSE, /* pc_relative */ | |
682 | 1, /* bitpos */ | |
683 | complain_overflow_dont,/* complain_on_overflow */ | |
684 | score_elf_lo16_reloc, /* special_function */ | |
685 | "R_SCORE_LO16", /* name */ | |
686 | TRUE, /* partial_inplace */ | |
687 | 0x37fff, /* src_mask */ | |
688 | 0x37fff, /* dst_mask */ | |
689 | FALSE), /* pcrel_offset */ | |
690 | ||
c3b7224a NC |
691 | /* R_SCORE_BCMP */ |
692 | HOWTO (R_SCORE_BCMP, /* type */ | |
693 | 1, /* rightshift */ | |
1c0d3aa6 NC |
694 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
695 | 16, /* bitsize */ | |
c3b7224a | 696 | TRUE, /* pc_relative */ |
1c0d3aa6 NC |
697 | 1, /* bitpos */ |
698 | complain_overflow_dont,/* complain_on_overflow */ | |
699 | bfd_elf_generic_reloc, /* special_function */ | |
c3b7224a NC |
700 | "R_SCORE_BCMP", /* name */ |
701 | FALSE, /* partial_inplace */ | |
702 | 0x03e00381, /* src_mask */ | |
703 | 0x03e00381, /* dst_mask */ | |
1c0d3aa6 NC |
704 | FALSE), /* pcrel_offset */ |
705 | ||
706 | /*R_SCORE_24 */ | |
707 | HOWTO (R_SCORE_24, /* type */ | |
708 | 1, /* rightshift */ | |
709 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
710 | 24, /* bitsize */ | |
711 | FALSE, /* pc_relative */ | |
712 | 1, /* bitpos */ | |
713 | complain_overflow_dont,/* complain_on_overflow */ | |
714 | bfd_elf_generic_reloc, /* special_function */ | |
715 | "R_SCORE_24", /* name */ | |
716 | FALSE, /* partial_inplace */ | |
717 | 0x3ff7fff, /* src_mask */ | |
718 | 0x3ff7fff, /* dst_mask */ | |
719 | FALSE), /* pcrel_offset */ | |
720 | ||
721 | /*R_SCORE_PC19 */ | |
722 | HOWTO (R_SCORE_PC19, /* type */ | |
723 | 1, /* rightshift */ | |
724 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
725 | 19, /* bitsize */ | |
726 | TRUE, /* pc_relative */ | |
727 | 1, /* bitpos */ | |
728 | complain_overflow_dont,/* complain_on_overflow */ | |
729 | bfd_elf_generic_reloc, /* special_function */ | |
730 | "R_SCORE_PC19", /* name */ | |
731 | FALSE, /* partial_inplace */ | |
732 | 0x3ff03fe, /* src_mask */ | |
733 | 0x3ff03fe, /* dst_mask */ | |
734 | FALSE), /* pcrel_offset */ | |
735 | ||
736 | /*R_SCORE16_11 */ | |
737 | HOWTO (R_SCORE16_11, /* type */ | |
738 | 1, /* rightshift */ | |
739 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
740 | 11, /* bitsize */ | |
741 | FALSE, /* pc_relative */ | |
742 | 1, /* bitpos */ | |
743 | complain_overflow_dont,/* complain_on_overflow */ | |
744 | bfd_elf_generic_reloc, /* special_function */ | |
745 | "R_SCORE16_11", /* name */ | |
746 | FALSE, /* partial_inplace */ | |
747 | 0x000000ffe, /* src_mask */ | |
748 | 0x000000ffe, /* dst_mask */ | |
749 | FALSE), /* pcrel_offset */ | |
750 | ||
751 | /* R_SCORE16_PC8 */ | |
752 | HOWTO (R_SCORE16_PC8, /* type */ | |
753 | 1, /* rightshift */ | |
754 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
c3b7224a | 755 | 9, /* bitsize */ |
1c0d3aa6 NC |
756 | TRUE, /* pc_relative */ |
757 | 0, /* bitpos */ | |
758 | complain_overflow_dont,/* complain_on_overflow */ | |
759 | bfd_elf_generic_reloc, /* special_function */ | |
760 | "R_SCORE16_PC8", /* name */ | |
761 | FALSE, /* partial_inplace */ | |
c3b7224a NC |
762 | 0x000001ff, /* src_mask */ |
763 | 0x000001ff, /* dst_mask */ | |
1c0d3aa6 NC |
764 | FALSE), /* pcrel_offset */ |
765 | ||
766 | /* 32 bit absolute */ | |
767 | HOWTO (R_SCORE_ABS32, /* type 8 */ | |
768 | 0, /* rightshift */ | |
769 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
770 | 32, /* bitsize */ | |
771 | FALSE, /* pc_relative */ | |
772 | 0, /* bitpos */ | |
773 | complain_overflow_bitfield, /* complain_on_overflow */ | |
774 | bfd_elf_generic_reloc, /* special_function */ | |
775 | "R_SCORE_ABS32", /* name */ | |
776 | FALSE, /* partial_inplace */ | |
777 | 0xffffffff, /* src_mask */ | |
778 | 0xffffffff, /* dst_mask */ | |
779 | FALSE), /* pcrel_offset */ | |
780 | ||
781 | /* 16 bit absolute */ | |
782 | HOWTO (R_SCORE_ABS16, /* type 11 */ | |
783 | 0, /* rightshift */ | |
784 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
785 | 16, /* bitsize */ | |
786 | FALSE, /* pc_relative */ | |
787 | 0, /* bitpos */ | |
788 | complain_overflow_bitfield, /* complain_on_overflow */ | |
789 | bfd_elf_generic_reloc, /* special_function */ | |
790 | "R_SCORE_ABS16", /* name */ | |
791 | FALSE, /* partial_inplace */ | |
792 | 0x0000ffff, /* src_mask */ | |
793 | 0x0000ffff, /* dst_mask */ | |
794 | FALSE), /* pcrel_offset */ | |
795 | ||
796 | /* R_SCORE_DUMMY2 */ | |
797 | HOWTO (R_SCORE_DUMMY2, /* type */ | |
798 | 0, /* rightshift */ | |
799 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
800 | 16, /* bitsize */ | |
801 | FALSE, /* pc_relative */ | |
802 | 0, /* bitpos */ | |
803 | complain_overflow_dont,/* complain_on_overflow */ | |
804 | bfd_elf_generic_reloc, /* special_function */ | |
805 | "R_SCORE_DUMMY2", /* name */ | |
806 | TRUE, /* partial_inplace */ | |
807 | 0x00007fff, /* src_mask */ | |
808 | 0x00007fff, /* dst_mask */ | |
809 | FALSE), /* pcrel_offset */ | |
810 | ||
811 | /* R_SCORE_GP15 */ | |
812 | HOWTO (R_SCORE_GP15, /* type */ | |
813 | 0, /* rightshift */ | |
814 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
815 | 16, /* bitsize */ | |
816 | FALSE, /* pc_relative */ | |
817 | 0, /* bitpos */ | |
818 | complain_overflow_dont,/* complain_on_overflow */ | |
819 | score_elf_gprel15_reloc,/* special_function */ | |
820 | "R_SCORE_GP15", /* name */ | |
821 | TRUE, /* partial_inplace */ | |
822 | 0x00007fff, /* src_mask */ | |
823 | 0x00007fff, /* dst_mask */ | |
824 | FALSE), /* pcrel_offset */ | |
825 | ||
826 | /* GNU extension to record C++ vtable hierarchy. */ | |
827 | HOWTO (R_SCORE_GNU_VTINHERIT, /* type */ | |
828 | 0, /* rightshift */ | |
829 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
830 | 0, /* bitsize */ | |
831 | FALSE, /* pc_relative */ | |
832 | 0, /* bitpos */ | |
833 | complain_overflow_dont,/* complain_on_overflow */ | |
834 | NULL, /* special_function */ | |
835 | "R_SCORE_GNU_VTINHERIT", /* name */ | |
836 | FALSE, /* partial_inplace */ | |
837 | 0, /* src_mask */ | |
838 | 0, /* dst_mask */ | |
839 | FALSE), /* pcrel_offset */ | |
840 | ||
841 | /* GNU extension to record C++ vtable member usage */ | |
842 | HOWTO (R_SCORE_GNU_VTENTRY, /* type */ | |
843 | 0, /* rightshift */ | |
844 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
845 | 0, /* bitsize */ | |
846 | FALSE, /* pc_relative */ | |
847 | 0, /* bitpos */ | |
848 | complain_overflow_dont,/* complain_on_overflow */ | |
849 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
850 | "R_SCORE_GNU_VTENTRY", /* name */ | |
851 | FALSE, /* partial_inplace */ | |
852 | 0, /* src_mask */ | |
853 | 0, /* dst_mask */ | |
854 | FALSE), /* pcrel_offset */ | |
855 | ||
856 | /* Reference to global offset table. */ | |
857 | HOWTO (R_SCORE_GOT15, /* type */ | |
858 | 0, /* rightshift */ | |
859 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
860 | 16, /* bitsize */ | |
861 | FALSE, /* pc_relative */ | |
862 | 0, /* bitpos */ | |
863 | complain_overflow_signed, /* complain_on_overflow */ | |
864 | score_elf_got15_reloc, /* special_function */ | |
865 | "R_SCORE_GOT15", /* name */ | |
866 | TRUE, /* partial_inplace */ | |
867 | 0x00007fff, /* src_mask */ | |
868 | 0x00007fff, /* dst_mask */ | |
869 | FALSE), /* pcrel_offset */ | |
870 | ||
871 | /* Low 16 bits of displacement in global offset table. */ | |
872 | HOWTO (R_SCORE_GOT_LO16, /* type */ | |
873 | 0, /* rightshift */ | |
874 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
875 | 16, /* bitsize */ | |
876 | FALSE, /* pc_relative */ | |
877 | 1, /* bitpos */ | |
878 | complain_overflow_dont,/* complain_on_overflow */ | |
879 | score_elf_got_lo16_reloc, /* special_function */ | |
880 | "R_SCORE_GOT_LO16", /* name */ | |
881 | TRUE, /* partial_inplace */ | |
882 | 0x37ffe, /* src_mask */ | |
883 | 0x37ffe, /* dst_mask */ | |
884 | FALSE), /* pcrel_offset */ | |
885 | ||
886 | /* 15 bit call through global offset table. */ | |
887 | HOWTO (R_SCORE_CALL15, /* type */ | |
888 | 0, /* rightshift */ | |
889 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
890 | 16, /* bitsize */ | |
891 | FALSE, /* pc_relative */ | |
892 | 0, /* bitpos */ | |
893 | complain_overflow_signed, /* complain_on_overflow */ | |
894 | bfd_elf_generic_reloc, /* special_function */ | |
895 | "R_SCORE_CALL15", /* name */ | |
896 | TRUE, /* partial_inplace */ | |
897 | 0x0000ffff, /* src_mask */ | |
898 | 0x0000ffff, /* dst_mask */ | |
899 | FALSE), /* pcrel_offset */ | |
900 | ||
901 | /* 32 bit GP relative reference. */ | |
902 | HOWTO (R_SCORE_GPREL32, /* type */ | |
903 | 0, /* rightshift */ | |
904 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
905 | 32, /* bitsize */ | |
906 | FALSE, /* pc_relative */ | |
907 | 0, /* bitpos */ | |
908 | complain_overflow_dont,/* complain_on_overflow */ | |
909 | score_elf_gprel32_reloc, /* special_function */ | |
910 | "R_SCORE_GPREL32", /* name */ | |
911 | TRUE, /* partial_inplace */ | |
912 | 0xffffffff, /* src_mask */ | |
913 | 0xffffffff, /* dst_mask */ | |
914 | FALSE), /* pcrel_offset */ | |
915 | ||
916 | /* 32 bit symbol relative relocation. */ | |
917 | HOWTO (R_SCORE_REL32, /* type */ | |
c3b7224a NC |
918 | 0, /* rightshift */ |
919 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
920 | 32, /* bitsize */ | |
921 | FALSE, /* pc_relative */ | |
922 | 0, /* bitpos */ | |
923 | complain_overflow_dont,/* complain_on_overflow */ | |
924 | bfd_elf_generic_reloc, /* special_function */ | |
925 | "R_SCORE_REL32", /* name */ | |
926 | TRUE, /* partial_inplace */ | |
927 | 0xffffffff, /* src_mask */ | |
928 | 0xffffffff, /* dst_mask */ | |
929 | FALSE), /* pcrel_offset */ | |
1c0d3aa6 NC |
930 | |
931 | /* R_SCORE_DUMMY_HI16 */ | |
932 | HOWTO (R_SCORE_DUMMY_HI16, /* type */ | |
933 | 0, /* rightshift */ | |
934 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
935 | 16, /* bitsize */ | |
936 | FALSE, /* pc_relative */ | |
937 | 1, /* bitpos */ | |
938 | complain_overflow_dont,/* complain_on_overflow */ | |
c3b7224a | 939 | score_elf_hi16_reloc, /* special_function */ |
1c0d3aa6 NC |
940 | "R_SCORE_DUMMY_HI16", /* name */ |
941 | TRUE, /* partial_inplace */ | |
942 | 0x37fff, /* src_mask */ | |
943 | 0x37fff, /* dst_mask */ | |
944 | FALSE), /* pcrel_offset */ | |
c3b7224a NC |
945 | |
946 | /* R_SCORE_IMM30 */ | |
947 | HOWTO (R_SCORE_IMM30, /* type */ | |
948 | 2, /* rightshift */ | |
949 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
950 | 30, /* bitsize */ | |
951 | FALSE, /* pc_relative */ | |
952 | 7, /* bitpos */ | |
953 | complain_overflow_dont,/* complain_on_overflow */ | |
954 | bfd_elf_generic_reloc, /* special_function */ | |
955 | "R_SCORE_IMM30", /* name */ | |
956 | FALSE, /* partial_inplace */ | |
957 | 0x7f7fff7f80LL, /* src_mask */ | |
958 | 0x7f7fff7f80LL, /* dst_mask */ | |
959 | FALSE), /* pcrel_offset */ | |
960 | ||
961 | /* R_SCORE_IMM32 */ | |
962 | HOWTO (R_SCORE_IMM32, /* type */ | |
963 | 0, /* rightshift */ | |
964 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
965 | 32, /* bitsize */ | |
966 | FALSE, /* pc_relative */ | |
967 | 5, /* bitpos */ | |
968 | complain_overflow_dont,/* complain_on_overflow */ | |
969 | bfd_elf_generic_reloc, /* special_function */ | |
970 | "R_SCORE_IMM32", /* name */ | |
971 | FALSE, /* partial_inplace */ | |
972 | 0x7f7fff7fe0LL, /* src_mask */ | |
973 | 0x7f7fff7fe0LL, /* dst_mask */ | |
974 | FALSE), /* pcrel_offset */ | |
1c0d3aa6 NC |
975 | }; |
976 | ||
977 | struct score_reloc_map | |
978 | { | |
979 | bfd_reloc_code_real_type bfd_reloc_val; | |
980 | unsigned char elf_reloc_val; | |
981 | }; | |
982 | ||
983 | static const struct score_reloc_map elf32_score_reloc_map[] = | |
984 | { | |
985 | {BFD_RELOC_NONE, R_SCORE_NONE}, | |
986 | {BFD_RELOC_HI16_S, R_SCORE_HI16}, | |
987 | {BFD_RELOC_LO16, R_SCORE_LO16}, | |
c3b7224a | 988 | {BFD_RELOC_SCORE_BCMP, R_SCORE_BCMP}, |
1c0d3aa6 NC |
989 | {BFD_RELOC_SCORE_JMP, R_SCORE_24}, |
990 | {BFD_RELOC_SCORE_BRANCH, R_SCORE_PC19}, | |
991 | {BFD_RELOC_SCORE16_JMP, R_SCORE16_11}, | |
992 | {BFD_RELOC_SCORE16_BRANCH, R_SCORE16_PC8}, | |
993 | {BFD_RELOC_32, R_SCORE_ABS32}, | |
994 | {BFD_RELOC_16, R_SCORE_ABS16}, | |
995 | {BFD_RELOC_SCORE_DUMMY2, R_SCORE_DUMMY2}, | |
996 | {BFD_RELOC_SCORE_GPREL15, R_SCORE_GP15}, | |
997 | {BFD_RELOC_VTABLE_INHERIT, R_SCORE_GNU_VTINHERIT}, | |
998 | {BFD_RELOC_VTABLE_ENTRY, R_SCORE_GNU_VTENTRY}, | |
999 | {BFD_RELOC_SCORE_GOT15, R_SCORE_GOT15}, | |
1000 | {BFD_RELOC_SCORE_GOT_LO16, R_SCORE_GOT_LO16}, | |
1001 | {BFD_RELOC_SCORE_CALL15, R_SCORE_CALL15}, | |
1002 | {BFD_RELOC_GPREL32, R_SCORE_GPREL32}, | |
1003 | {BFD_RELOC_32_PCREL, R_SCORE_REL32}, | |
1004 | {BFD_RELOC_SCORE_DUMMY_HI16, R_SCORE_DUMMY_HI16}, | |
c3b7224a NC |
1005 | {BFD_RELOC_SCORE_IMM30, R_SCORE_IMM30}, |
1006 | {BFD_RELOC_SCORE_IMM32, R_SCORE_IMM32}, | |
1c0d3aa6 NC |
1007 | }; |
1008 | ||
1009 | /* got_entries only match if they're identical, except for gotidx, so | |
1010 | use all fields to compute the hash, and compare the appropriate | |
1011 | union members. */ | |
1c0d3aa6 NC |
1012 | static hashval_t |
1013 | score_elf_got_entry_hash (const void *entry_) | |
1014 | { | |
1015 | const struct score_got_entry *entry = (struct score_got_entry *)entry_; | |
1016 | ||
1017 | return entry->symndx | |
1018 | + (!entry->abfd ? entry->d.address : entry->abfd->id); | |
1019 | } | |
1020 | ||
1021 | static int | |
1022 | score_elf_got_entry_eq (const void *entry1, const void *entry2) | |
1023 | { | |
1024 | const struct score_got_entry *e1 = (struct score_got_entry *)entry1; | |
1025 | const struct score_got_entry *e2 = (struct score_got_entry *)entry2; | |
1026 | ||
1027 | return e1->abfd == e2->abfd && e1->symndx == e2->symndx | |
1028 | && (! e1->abfd ? e1->d.address == e2->d.address | |
c3b7224a NC |
1029 | : e1->symndx >= 0 ? e1->d.addend == e2->d.addend |
1030 | : e1->d.h == e2->d.h); | |
1c0d3aa6 NC |
1031 | } |
1032 | ||
1033 | /* If H needs a GOT entry, assign it the highest available dynamic | |
1034 | index. Otherwise, assign it the lowest available dynamic | |
1035 | index. */ | |
1c0d3aa6 NC |
1036 | static bfd_boolean |
1037 | score_elf_sort_hash_table_f (struct score_elf_link_hash_entry *h, void *data) | |
1038 | { | |
1039 | struct score_elf_hash_sort_data *hsd = data; | |
1040 | ||
1c0d3aa6 NC |
1041 | /* Symbols without dynamic symbol table entries aren't interesting at all. */ |
1042 | if (h->root.dynindx == -1) | |
1043 | return TRUE; | |
1044 | ||
1045 | /* Global symbols that need GOT entries that are not explicitly | |
1046 | referenced are marked with got offset 2. Those that are | |
1047 | referenced get a 1, and those that don't need GOT entries get | |
1048 | -1. */ | |
1049 | if (h->root.got.offset == 2) | |
1050 | { | |
1051 | if (hsd->max_unref_got_dynindx == hsd->min_got_dynindx) | |
c3b7224a | 1052 | hsd->low = (struct elf_link_hash_entry *) h; |
1c0d3aa6 NC |
1053 | h->root.dynindx = hsd->max_unref_got_dynindx++; |
1054 | } | |
1055 | else if (h->root.got.offset != 1) | |
1056 | h->root.dynindx = hsd->max_non_got_dynindx++; | |
1057 | else | |
1058 | { | |
1059 | h->root.dynindx = --hsd->min_got_dynindx; | |
1060 | hsd->low = (struct elf_link_hash_entry *) h; | |
1061 | } | |
1062 | ||
1063 | return TRUE; | |
1064 | } | |
1065 | ||
1066 | static asection * | |
1067 | score_elf_got_section (bfd *abfd, bfd_boolean maybe_excluded) | |
1068 | { | |
3d4d4302 | 1069 | asection *sgot = bfd_get_linker_section (abfd, ".got"); |
1c0d3aa6 NC |
1070 | |
1071 | if (sgot == NULL || (! maybe_excluded && (sgot->flags & SEC_EXCLUDE) != 0)) | |
1072 | return NULL; | |
1073 | return sgot; | |
1074 | } | |
1075 | ||
1076 | /* Returns the GOT information associated with the link indicated by | |
1077 | INFO. If SGOTP is non-NULL, it is filled in with the GOT section. */ | |
1c0d3aa6 NC |
1078 | static struct score_got_info * |
1079 | score_elf_got_info (bfd *abfd, asection **sgotp) | |
1080 | { | |
1081 | asection *sgot; | |
1082 | struct score_got_info *g; | |
1083 | ||
1084 | sgot = score_elf_got_section (abfd, TRUE); | |
1085 | BFD_ASSERT (sgot != NULL); | |
1086 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
1087 | g = score_elf_section_data (sgot)->u.got_info; | |
1088 | BFD_ASSERT (g != NULL); | |
1089 | ||
1090 | if (sgotp) | |
1091 | *sgotp = sgot; | |
1092 | return g; | |
1093 | } | |
1094 | ||
1095 | /* Sort the dynamic symbol table so that symbols that need GOT entries | |
1096 | appear towards the end. This reduces the amount of GOT space | |
1097 | required. MAX_LOCAL is used to set the number of local symbols | |
1098 | known to be in the dynamic symbol table. During | |
c3b7224a | 1099 | s3_bfd_score_elf_size_dynamic_sections, this value is 1. Afterward, the |
1c0d3aa6 | 1100 | section symbols are added and the count is higher. */ |
1c0d3aa6 NC |
1101 | static bfd_boolean |
1102 | score_elf_sort_hash_table (struct bfd_link_info *info, | |
c3b7224a | 1103 | unsigned long max_local) |
1c0d3aa6 NC |
1104 | { |
1105 | struct score_elf_hash_sort_data hsd; | |
1106 | struct score_got_info *g; | |
1107 | bfd *dynobj; | |
1108 | ||
1109 | dynobj = elf_hash_table (info)->dynobj; | |
1110 | ||
1111 | g = score_elf_got_info (dynobj, NULL); | |
1112 | ||
1113 | hsd.low = NULL; | |
1114 | hsd.max_unref_got_dynindx = | |
1115 | hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount | |
1116 | /* In the multi-got case, assigned_gotno of the master got_info | |
1117 | indicate the number of entries that aren't referenced in the | |
1118 | primary GOT, but that must have entries because there are | |
1119 | dynamic relocations that reference it. Since they aren't | |
1120 | referenced, we move them to the end of the GOT, so that they | |
1121 | don't prevent other entries that are referenced from getting | |
1122 | too large offsets. */ | |
1123 | - (g->next ? g->assigned_gotno : 0); | |
1124 | hsd.max_non_got_dynindx = max_local; | |
4dfe6ac6 NC |
1125 | score_elf_link_hash_traverse (elf_hash_table (info), |
1126 | score_elf_sort_hash_table_f, | |
1127 | &hsd); | |
1c0d3aa6 NC |
1128 | |
1129 | /* There should have been enough room in the symbol table to | |
1130 | accommodate both the GOT and non-GOT symbols. */ | |
1131 | BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx); | |
1132 | BFD_ASSERT ((unsigned long)hsd.max_unref_got_dynindx | |
c3b7224a | 1133 | <= elf_hash_table (info)->dynsymcount); |
1c0d3aa6 NC |
1134 | |
1135 | /* Now we know which dynamic symbol has the lowest dynamic symbol | |
1136 | table index in the GOT. */ | |
1137 | g->global_gotsym = hsd.low; | |
1138 | ||
1139 | return TRUE; | |
1140 | } | |
1141 | ||
1142 | /* Create an entry in an score ELF linker hash table. */ | |
4dfe6ac6 | 1143 | |
1c0d3aa6 NC |
1144 | static struct bfd_hash_entry * |
1145 | score_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
c3b7224a NC |
1146 | struct bfd_hash_table *table, |
1147 | const char *string) | |
1c0d3aa6 | 1148 | { |
4dfe6ac6 | 1149 | struct score_elf_link_hash_entry *ret = (struct score_elf_link_hash_entry *) entry; |
1c0d3aa6 NC |
1150 | |
1151 | /* Allocate the structure if it has not already been allocated by a subclass. */ | |
1152 | if (ret == NULL) | |
1153 | ret = bfd_hash_allocate (table, sizeof (struct score_elf_link_hash_entry)); | |
1154 | if (ret == NULL) | |
4dfe6ac6 | 1155 | return (struct bfd_hash_entry *) ret; |
1c0d3aa6 NC |
1156 | |
1157 | /* Call the allocation method of the superclass. */ | |
1158 | ret = ((struct score_elf_link_hash_entry *) | |
4dfe6ac6 | 1159 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); |
1c0d3aa6 NC |
1160 | |
1161 | if (ret != NULL) | |
1162 | { | |
1163 | ret->possibly_dynamic_relocs = 0; | |
1164 | ret->readonly_reloc = FALSE; | |
1165 | ret->no_fn_stub = FALSE; | |
1166 | ret->forced_local = FALSE; | |
1167 | } | |
1168 | ||
4dfe6ac6 | 1169 | return (struct bfd_hash_entry *) ret; |
1c0d3aa6 NC |
1170 | } |
1171 | ||
1172 | /* Returns the first relocation of type r_type found, beginning with | |
1173 | RELOCATION. RELEND is one-past-the-end of the relocation table. */ | |
1c0d3aa6 NC |
1174 | static const Elf_Internal_Rela * |
1175 | score_elf_next_relocation (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type, | |
c3b7224a NC |
1176 | const Elf_Internal_Rela *relocation, |
1177 | const Elf_Internal_Rela *relend) | |
1c0d3aa6 NC |
1178 | { |
1179 | while (relocation < relend) | |
1180 | { | |
1181 | if (ELF32_R_TYPE (relocation->r_info) == r_type) | |
c3b7224a | 1182 | return relocation; |
1c0d3aa6 NC |
1183 | |
1184 | ++relocation; | |
1185 | } | |
1186 | ||
1187 | /* We didn't find it. */ | |
1188 | bfd_set_error (bfd_error_bad_value); | |
1189 | return NULL; | |
1190 | } | |
1191 | ||
1192 | /* This function is called via qsort() to sort the dynamic relocation | |
1193 | entries by increasing r_symndx value. */ | |
1c0d3aa6 NC |
1194 | static int |
1195 | score_elf_sort_dynamic_relocs (const void *arg1, const void *arg2) | |
1196 | { | |
1197 | Elf_Internal_Rela int_reloc1; | |
1198 | Elf_Internal_Rela int_reloc2; | |
1199 | ||
1200 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg1, &int_reloc1); | |
1201 | bfd_elf32_swap_reloc_in (reldyn_sorting_bfd, arg2, &int_reloc2); | |
1202 | ||
1203 | return (ELF32_R_SYM (int_reloc1.r_info) - ELF32_R_SYM (int_reloc2.r_info)); | |
1204 | } | |
1205 | ||
1206 | /* Return whether a relocation is against a local symbol. */ | |
1c0d3aa6 NC |
1207 | static bfd_boolean |
1208 | score_elf_local_relocation_p (bfd *input_bfd, | |
c3b7224a NC |
1209 | const Elf_Internal_Rela *relocation, |
1210 | asection **local_sections, | |
1211 | bfd_boolean check_forced) | |
1c0d3aa6 NC |
1212 | { |
1213 | unsigned long r_symndx; | |
1214 | Elf_Internal_Shdr *symtab_hdr; | |
1215 | struct score_elf_link_hash_entry *h; | |
1216 | size_t extsymoff; | |
1217 | ||
1218 | r_symndx = ELF32_R_SYM (relocation->r_info); | |
1219 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
c3b7224a | 1220 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
1221 | |
1222 | if (r_symndx < extsymoff) | |
1223 | return TRUE; | |
c3b7224a NC |
1224 | if (elf_bad_symtab (input_bfd) && local_sections[r_symndx] != NULL) |
1225 | return TRUE; | |
1c0d3aa6 NC |
1226 | |
1227 | if (check_forced) | |
1228 | { | |
1229 | /* Look up the hash table to check whether the symbol was forced local. */ | |
1230 | h = (struct score_elf_link_hash_entry *) | |
c3b7224a | 1231 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]; |
1c0d3aa6 NC |
1232 | /* Find the real hash-table entry for this symbol. */ |
1233 | while (h->root.root.type == bfd_link_hash_indirect | |
c3b7224a NC |
1234 | || h->root.root.type == bfd_link_hash_warning) |
1235 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
1c0d3aa6 | 1236 | if (h->root.forced_local) |
c3b7224a | 1237 | return TRUE; |
1c0d3aa6 NC |
1238 | } |
1239 | ||
1240 | return FALSE; | |
1241 | } | |
1242 | ||
1243 | /* Returns the dynamic relocation section for DYNOBJ. */ | |
1c0d3aa6 NC |
1244 | static asection * |
1245 | score_elf_rel_dyn_section (bfd *dynobj, bfd_boolean create_p) | |
1246 | { | |
1247 | static const char dname[] = ".rel.dyn"; | |
1248 | asection *sreloc; | |
1249 | ||
3d4d4302 | 1250 | sreloc = bfd_get_linker_section (dynobj, dname); |
1c0d3aa6 NC |
1251 | if (sreloc == NULL && create_p) |
1252 | { | |
3d4d4302 AM |
1253 | sreloc = bfd_make_section_anyway_with_flags (dynobj, dname, |
1254 | (SEC_ALLOC | |
1255 | | SEC_LOAD | |
1256 | | SEC_HAS_CONTENTS | |
1257 | | SEC_IN_MEMORY | |
1258 | | SEC_LINKER_CREATED | |
1259 | | SEC_READONLY)); | |
1c0d3aa6 | 1260 | if (sreloc == NULL |
c3b7224a NC |
1261 | || ! bfd_set_section_alignment (dynobj, sreloc, |
1262 | SCORE_ELF_LOG_FILE_ALIGN (dynobj))) | |
1263 | return NULL; | |
1c0d3aa6 | 1264 | } |
c3b7224a | 1265 | return sreloc; |
1c0d3aa6 NC |
1266 | } |
1267 | ||
1268 | static void | |
1269 | score_elf_allocate_dynamic_relocations (bfd *abfd, unsigned int n) | |
1270 | { | |
1271 | asection *s; | |
1272 | ||
1273 | s = score_elf_rel_dyn_section (abfd, FALSE); | |
1274 | BFD_ASSERT (s != NULL); | |
1275 | ||
1276 | if (s->size == 0) | |
1277 | { | |
1278 | /* Make room for a null element. */ | |
1279 | s->size += SCORE_ELF_REL_SIZE (abfd); | |
1280 | ++s->reloc_count; | |
1281 | } | |
1282 | s->size += n * SCORE_ELF_REL_SIZE (abfd); | |
1283 | } | |
1284 | ||
1285 | /* Create a rel.dyn relocation for the dynamic linker to resolve. REL | |
1286 | is the original relocation, which is now being transformed into a | |
1287 | dynamic relocation. The ADDENDP is adjusted if necessary; the | |
1288 | caller should store the result in place of the original addend. */ | |
1c0d3aa6 NC |
1289 | static bfd_boolean |
1290 | score_elf_create_dynamic_relocation (bfd *output_bfd, | |
c3b7224a NC |
1291 | struct bfd_link_info *info, |
1292 | const Elf_Internal_Rela *rel, | |
1293 | struct score_elf_link_hash_entry *h, | |
1294 | bfd_vma symbol, | |
1295 | bfd_vma *addendp, asection *input_section) | |
1c0d3aa6 NC |
1296 | { |
1297 | Elf_Internal_Rela outrel[3]; | |
1298 | asection *sreloc; | |
1299 | bfd *dynobj; | |
1300 | int r_type; | |
1301 | long indx; | |
1302 | bfd_boolean defined_p; | |
1303 | ||
1304 | r_type = ELF32_R_TYPE (rel->r_info); | |
1305 | dynobj = elf_hash_table (info)->dynobj; | |
1306 | sreloc = score_elf_rel_dyn_section (dynobj, FALSE); | |
1307 | BFD_ASSERT (sreloc != NULL); | |
1308 | BFD_ASSERT (sreloc->contents != NULL); | |
1309 | BFD_ASSERT (sreloc->reloc_count * SCORE_ELF_REL_SIZE (output_bfd) < sreloc->size); | |
1310 | ||
1311 | outrel[0].r_offset = | |
1312 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[0].r_offset); | |
1313 | outrel[1].r_offset = | |
1314 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[1].r_offset); | |
1315 | outrel[2].r_offset = | |
1316 | _bfd_elf_section_offset (output_bfd, info, input_section, rel[2].r_offset); | |
1317 | ||
1318 | if (outrel[0].r_offset == MINUS_ONE) | |
1319 | /* The relocation field has been deleted. */ | |
1320 | return TRUE; | |
1321 | ||
1322 | if (outrel[0].r_offset == MINUS_TWO) | |
1323 | { | |
1324 | /* The relocation field has been converted into a relative value of | |
c3b7224a NC |
1325 | some sort. Functions like _bfd_elf_write_section_eh_frame expect |
1326 | the field to be fully relocated, so add in the symbol's value. */ | |
1c0d3aa6 NC |
1327 | *addendp += symbol; |
1328 | return TRUE; | |
1329 | } | |
1330 | ||
1331 | /* We must now calculate the dynamic symbol table index to use | |
1332 | in the relocation. */ | |
1333 | if (h != NULL | |
1334 | && (! info->symbolic || !h->root.def_regular) | |
1335 | /* h->root.dynindx may be -1 if this symbol was marked to | |
c3b7224a | 1336 | become local. */ |
1c0d3aa6 NC |
1337 | && h->root.dynindx != -1) |
1338 | { | |
1339 | indx = h->root.dynindx; | |
c3b7224a NC |
1340 | /* ??? glibc's ld.so just adds the final GOT entry to the |
1341 | relocation field. It therefore treats relocs against | |
1342 | defined symbols in the same way as relocs against | |
1343 | undefined symbols. */ | |
1c0d3aa6 NC |
1344 | defined_p = FALSE; |
1345 | } | |
1346 | else | |
1347 | { | |
9838404f | 1348 | indx = 0; |
1c0d3aa6 NC |
1349 | defined_p = TRUE; |
1350 | } | |
1351 | ||
1352 | /* If the relocation was previously an absolute relocation and | |
1353 | this symbol will not be referred to by the relocation, we must | |
1354 | adjust it by the value we give it in the dynamic symbol table. | |
1355 | Otherwise leave the job up to the dynamic linker. */ | |
1356 | if (defined_p && r_type != R_SCORE_REL32) | |
1357 | *addendp += symbol; | |
1358 | ||
1359 | /* The relocation is always an REL32 relocation because we don't | |
1360 | know where the shared library will wind up at load-time. */ | |
1361 | outrel[0].r_info = ELF32_R_INFO ((unsigned long) indx, R_SCORE_REL32); | |
1362 | ||
1363 | /* For strict adherence to the ABI specification, we should | |
1364 | generate a R_SCORE_64 relocation record by itself before the | |
1365 | _REL32/_64 record as well, such that the addend is read in as | |
1366 | a 64-bit value (REL32 is a 32-bit relocation, after all). | |
1367 | However, since none of the existing ELF64 SCORE dynamic | |
1368 | loaders seems to care, we don't waste space with these | |
1369 | artificial relocations. If this turns out to not be true, | |
1370 | score_elf_allocate_dynamic_relocations() should be tweaked so | |
1371 | as to make room for a pair of dynamic relocations per | |
1372 | invocation if ABI_64_P, and here we should generate an | |
1373 | additional relocation record with R_SCORE_64 by itself for a | |
1374 | NULL symbol before this relocation record. */ | |
1375 | outrel[1].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1376 | outrel[2].r_info = ELF32_R_INFO (0, R_SCORE_NONE); | |
1377 | ||
1378 | /* Adjust the output offset of the relocation to reference the | |
1379 | correct location in the output file. */ | |
1380 | outrel[0].r_offset += (input_section->output_section->vma | |
c3b7224a | 1381 | + input_section->output_offset); |
1c0d3aa6 | 1382 | outrel[1].r_offset += (input_section->output_section->vma |
c3b7224a | 1383 | + input_section->output_offset); |
1c0d3aa6 | 1384 | outrel[2].r_offset += (input_section->output_section->vma |
c3b7224a | 1385 | + input_section->output_offset); |
1c0d3aa6 NC |
1386 | |
1387 | /* Put the relocation back out. We have to use the special | |
1388 | relocation outputter in the 64-bit case since the 64-bit | |
1389 | relocation format is non-standard. */ | |
1390 | bfd_elf32_swap_reloc_out | |
1391 | (output_bfd, &outrel[0], | |
1392 | (sreloc->contents + sreloc->reloc_count * sizeof (Elf32_External_Rel))); | |
1393 | ||
1394 | /* We've now added another relocation. */ | |
1395 | ++sreloc->reloc_count; | |
1396 | ||
1397 | /* Make sure the output section is writable. The dynamic linker | |
1398 | will be writing to it. */ | |
1399 | elf_section_data (input_section->output_section)->this_hdr.sh_flags |= SHF_WRITE; | |
1400 | ||
1401 | return TRUE; | |
1402 | } | |
1403 | ||
1404 | static bfd_boolean | |
1405 | score_elf_create_got_section (bfd *abfd, | |
1406 | struct bfd_link_info *info, | |
c3b7224a | 1407 | bfd_boolean maybe_exclude) |
1c0d3aa6 NC |
1408 | { |
1409 | flagword flags; | |
1410 | asection *s; | |
1411 | struct elf_link_hash_entry *h; | |
1412 | struct bfd_link_hash_entry *bh; | |
1413 | struct score_got_info *g; | |
1414 | bfd_size_type amt; | |
1415 | ||
1416 | /* This function may be called more than once. */ | |
1417 | s = score_elf_got_section (abfd, TRUE); | |
1418 | if (s) | |
1419 | { | |
1420 | if (! maybe_exclude) | |
c3b7224a | 1421 | s->flags &= ~SEC_EXCLUDE; |
1c0d3aa6 NC |
1422 | return TRUE; |
1423 | } | |
1424 | ||
1425 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1426 | ||
1427 | if (maybe_exclude) | |
1428 | flags |= SEC_EXCLUDE; | |
1429 | ||
1430 | /* We have to use an alignment of 2**4 here because this is hardcoded | |
1431 | in the function stub generation and in the linker script. */ | |
3d4d4302 | 1432 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
b3549761 | 1433 | if (s == NULL |
1c0d3aa6 NC |
1434 | || ! bfd_set_section_alignment (abfd, s, 4)) |
1435 | return FALSE; | |
1436 | ||
1437 | /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the | |
1438 | linker script because we don't want to define the symbol if we | |
1439 | are not creating a global offset table. */ | |
1440 | bh = NULL; | |
1441 | if (! (_bfd_generic_link_add_one_symbol | |
c3b7224a NC |
1442 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, |
1443 | 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh))) | |
1c0d3aa6 NC |
1444 | return FALSE; |
1445 | ||
1446 | h = (struct elf_link_hash_entry *) bh; | |
1447 | h->non_elf = 0; | |
1448 | h->def_regular = 1; | |
1449 | h->type = STT_OBJECT; | |
1450 | ||
1451 | if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1452 | return FALSE; | |
1453 | ||
1454 | amt = sizeof (struct score_got_info); | |
1455 | g = bfd_alloc (abfd, amt); | |
1456 | if (g == NULL) | |
1457 | return FALSE; | |
1458 | ||
1459 | g->global_gotsym = NULL; | |
1460 | g->global_gotno = 0; | |
1461 | ||
1462 | g->local_gotno = SCORE_RESERVED_GOTNO; | |
1463 | g->assigned_gotno = SCORE_RESERVED_GOTNO; | |
1464 | g->next = NULL; | |
1465 | ||
1466 | g->got_entries = htab_try_create (1, score_elf_got_entry_hash, | |
c3b7224a | 1467 | score_elf_got_entry_eq, NULL); |
1c0d3aa6 NC |
1468 | if (g->got_entries == NULL) |
1469 | return FALSE; | |
1470 | score_elf_section_data (s)->u.got_info = g; | |
1471 | score_elf_section_data (s)->elf.this_hdr.sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
1472 | ||
1473 | return TRUE; | |
1474 | } | |
1475 | ||
1476 | /* Calculate the %high function. */ | |
1c0d3aa6 NC |
1477 | static bfd_vma |
1478 | score_elf_high (bfd_vma value) | |
1479 | { | |
1480 | return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff; | |
1481 | } | |
1482 | ||
1483 | /* Create a local GOT entry for VALUE. Return the index of the entry, | |
1484 | or -1 if it could not be created. */ | |
1c0d3aa6 NC |
1485 | static struct score_got_entry * |
1486 | score_elf_create_local_got_entry (bfd *abfd, | |
1487 | bfd *ibfd ATTRIBUTE_UNUSED, | |
c3b7224a NC |
1488 | struct score_got_info *gg, |
1489 | asection *sgot, bfd_vma value, | |
1490 | unsigned long r_symndx ATTRIBUTE_UNUSED, | |
1491 | struct score_elf_link_hash_entry *h ATTRIBUTE_UNUSED, | |
1492 | int r_type ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
1493 | { |
1494 | struct score_got_entry entry, **loc; | |
1495 | struct score_got_info *g; | |
1496 | ||
1497 | entry.abfd = NULL; | |
1498 | entry.symndx = -1; | |
1499 | entry.d.address = value; | |
1500 | ||
1501 | g = gg; | |
1502 | loc = (struct score_got_entry **) htab_find_slot (g->got_entries, &entry, INSERT); | |
1503 | if (*loc) | |
1504 | return *loc; | |
1505 | ||
1506 | entry.gotidx = SCORE_ELF_GOT_SIZE (abfd) * g->assigned_gotno++; | |
1507 | ||
1508 | *loc = bfd_alloc (abfd, sizeof entry); | |
1509 | ||
1510 | if (! *loc) | |
1511 | return NULL; | |
1512 | ||
1513 | memcpy (*loc, &entry, sizeof entry); | |
1514 | ||
1515 | if (g->assigned_gotno >= g->local_gotno) | |
1516 | { | |
1517 | (*loc)->gotidx = -1; | |
1518 | /* We didn't allocate enough space in the GOT. */ | |
1519 | (*_bfd_error_handler) | |
c3b7224a | 1520 | (_("not enough GOT space for local GOT entries")); |
1c0d3aa6 NC |
1521 | bfd_set_error (bfd_error_bad_value); |
1522 | return NULL; | |
1523 | } | |
1524 | ||
c3b7224a | 1525 | score_bfd_put_32 (abfd, value, (sgot->contents + entry.gotidx)); |
1c0d3aa6 NC |
1526 | |
1527 | return *loc; | |
1528 | } | |
1529 | ||
1530 | /* Find a GOT entry whose higher-order 16 bits are the same as those | |
1531 | for value. Return the index into the GOT for this entry. */ | |
1c0d3aa6 NC |
1532 | static bfd_vma |
1533 | score_elf_got16_entry (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
c3b7224a | 1534 | bfd_vma value, bfd_boolean external) |
1c0d3aa6 NC |
1535 | { |
1536 | asection *sgot; | |
1537 | struct score_got_info *g; | |
1538 | struct score_got_entry *entry; | |
1539 | ||
1540 | if (!external) | |
1541 | { | |
1542 | /* Although the ABI says that it is "the high-order 16 bits" that we | |
c3b7224a NC |
1543 | want, it is really the %high value. The complete value is |
1544 | calculated with a `addiu' of a LO16 relocation, just as with a | |
1545 | HI16/LO16 pair. */ | |
1c0d3aa6 NC |
1546 | value = score_elf_high (value) << 16; |
1547 | } | |
1548 | ||
1549 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1550 | ||
1551 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, 0, NULL, | |
c3b7224a | 1552 | R_SCORE_GOT15); |
1c0d3aa6 NC |
1553 | if (entry) |
1554 | return entry->gotidx; | |
1555 | else | |
1556 | return MINUS_ONE; | |
1557 | } | |
1558 | ||
1559 | static void | |
c3b7224a NC |
1560 | s3_bfd_score_elf_hide_symbol (struct bfd_link_info *info, |
1561 | struct elf_link_hash_entry *entry, | |
1562 | bfd_boolean force_local) | |
1c0d3aa6 NC |
1563 | { |
1564 | bfd *dynobj; | |
1565 | asection *got; | |
1566 | struct score_got_info *g; | |
1567 | struct score_elf_link_hash_entry *h; | |
1568 | ||
1569 | h = (struct score_elf_link_hash_entry *) entry; | |
1570 | if (h->forced_local) | |
1571 | return; | |
1572 | h->forced_local = TRUE; | |
1573 | ||
1574 | dynobj = elf_hash_table (info)->dynobj; | |
1575 | if (dynobj != NULL && force_local) | |
1576 | { | |
1577 | got = score_elf_got_section (dynobj, FALSE); | |
1578 | if (got == NULL) | |
c3b7224a | 1579 | return; |
1c0d3aa6 NC |
1580 | g = score_elf_section_data (got)->u.got_info; |
1581 | ||
1582 | if (g->next) | |
c3b7224a NC |
1583 | { |
1584 | struct score_got_entry e; | |
1585 | struct score_got_info *gg = g; | |
1586 | ||
1587 | /* Since we're turning what used to be a global symbol into a | |
1588 | local one, bump up the number of local entries of each GOT | |
1589 | that had an entry for it. This will automatically decrease | |
1590 | the number of global entries, since global_gotno is actually | |
1591 | the upper limit of global entries. */ | |
1592 | e.abfd = dynobj; | |
1593 | e.symndx = -1; | |
1594 | e.d.h = h; | |
1595 | ||
1596 | for (g = g->next; g != gg; g = g->next) | |
1597 | if (htab_find (g->got_entries, &e)) | |
1598 | { | |
1599 | BFD_ASSERT (g->global_gotno > 0); | |
1600 | g->local_gotno++; | |
1601 | g->global_gotno--; | |
1602 | } | |
1603 | ||
1604 | /* If this was a global symbol forced into the primary GOT, we | |
1605 | no longer need an entry for it. We can't release the entry | |
1606 | at this point, but we must at least stop counting it as one | |
1607 | of the symbols that required a forced got entry. */ | |
1608 | if (h->root.got.offset == 2) | |
1609 | { | |
1610 | BFD_ASSERT (gg->assigned_gotno > 0); | |
1611 | gg->assigned_gotno--; | |
1612 | } | |
1613 | } | |
1c0d3aa6 | 1614 | else if (g->global_gotno == 0 && g->global_gotsym == NULL) |
c3b7224a NC |
1615 | /* If we haven't got through GOT allocation yet, just bump up the |
1616 | number of local entries, as this symbol won't be counted as | |
1617 | global. */ | |
1618 | g->local_gotno++; | |
1c0d3aa6 | 1619 | else if (h->root.got.offset == 1) |
c3b7224a NC |
1620 | { |
1621 | /* If we're past non-multi-GOT allocation and this symbol had | |
1622 | been marked for a global got entry, give it a local entry | |
1623 | instead. */ | |
1624 | BFD_ASSERT (g->global_gotno > 0); | |
1625 | g->local_gotno++; | |
1626 | g->global_gotno--; | |
1627 | } | |
1c0d3aa6 NC |
1628 | } |
1629 | ||
1630 | _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local); | |
1631 | } | |
1632 | ||
1633 | /* If H is a symbol that needs a global GOT entry, but has a dynamic | |
1634 | symbol table index lower than any we've seen to date, record it for | |
1635 | posterity. */ | |
1c0d3aa6 NC |
1636 | static bfd_boolean |
1637 | score_elf_record_global_got_symbol (struct elf_link_hash_entry *h, | |
c3b7224a | 1638 | bfd *abfd, |
1c0d3aa6 | 1639 | struct bfd_link_info *info, |
c3b7224a | 1640 | struct score_got_info *g) |
1c0d3aa6 NC |
1641 | { |
1642 | struct score_got_entry entry, **loc; | |
1643 | ||
1644 | /* A global symbol in the GOT must also be in the dynamic symbol table. */ | |
1645 | if (h->dynindx == -1) | |
1646 | { | |
1647 | switch (ELF_ST_VISIBILITY (h->other)) | |
c3b7224a NC |
1648 | { |
1649 | case STV_INTERNAL: | |
1650 | case STV_HIDDEN: | |
1651 | s3_bfd_score_elf_hide_symbol (info, h, TRUE); | |
1652 | break; | |
1653 | } | |
1c0d3aa6 | 1654 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
c3b7224a | 1655 | return FALSE; |
1c0d3aa6 NC |
1656 | } |
1657 | ||
1658 | entry.abfd = abfd; | |
1659 | entry.symndx = -1; | |
1660 | entry.d.h = (struct score_elf_link_hash_entry *)h; | |
1661 | ||
1662 | loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT); | |
1663 | ||
1664 | /* If we've already marked this entry as needing GOT space, we don't | |
1665 | need to do it again. */ | |
1666 | if (*loc) | |
1667 | return TRUE; | |
1668 | ||
1669 | *loc = bfd_alloc (abfd, sizeof entry); | |
1670 | if (! *loc) | |
1671 | return FALSE; | |
1672 | ||
1673 | entry.gotidx = -1; | |
1674 | ||
1675 | memcpy (*loc, &entry, sizeof (entry)); | |
1676 | ||
1677 | if (h->got.offset != MINUS_ONE) | |
1678 | return TRUE; | |
1679 | ||
1680 | /* By setting this to a value other than -1, we are indicating that | |
1681 | there needs to be a GOT entry for H. Avoid using zero, as the | |
1682 | generic ELF copy_indirect_symbol tests for <= 0. */ | |
1683 | h->got.offset = 1; | |
1684 | ||
1685 | return TRUE; | |
1686 | } | |
1687 | ||
1688 | /* Reserve space in G for a GOT entry containing the value of symbol | |
1689 | SYMNDX in input bfd ABDF, plus ADDEND. */ | |
1c0d3aa6 NC |
1690 | static bfd_boolean |
1691 | score_elf_record_local_got_symbol (bfd *abfd, | |
1692 | long symndx, | |
1693 | bfd_vma addend, | |
c3b7224a | 1694 | struct score_got_info *g) |
1c0d3aa6 NC |
1695 | { |
1696 | struct score_got_entry entry, **loc; | |
1697 | ||
1698 | entry.abfd = abfd; | |
1699 | entry.symndx = symndx; | |
1700 | entry.d.addend = addend; | |
1701 | loc = (struct score_got_entry **)htab_find_slot (g->got_entries, &entry, INSERT); | |
1702 | ||
1703 | if (*loc) | |
1704 | return TRUE; | |
1705 | ||
1706 | entry.gotidx = g->local_gotno++; | |
1707 | ||
1708 | *loc = bfd_alloc (abfd, sizeof(entry)); | |
1709 | if (! *loc) | |
1710 | return FALSE; | |
1711 | ||
1712 | memcpy (*loc, &entry, sizeof (entry)); | |
1713 | ||
1714 | return TRUE; | |
1715 | } | |
1716 | ||
1717 | /* Returns the GOT offset at which the indicated address can be found. | |
1718 | If there is not yet a GOT entry for this value, create one. | |
1719 | Returns -1 if no satisfactory GOT offset can be found. */ | |
1c0d3aa6 NC |
1720 | static bfd_vma |
1721 | score_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, | |
c3b7224a NC |
1722 | bfd_vma value, unsigned long r_symndx, |
1723 | struct score_elf_link_hash_entry *h, int r_type) | |
1c0d3aa6 NC |
1724 | { |
1725 | asection *sgot; | |
1726 | struct score_got_info *g; | |
1727 | struct score_got_entry *entry; | |
1728 | ||
1729 | g = score_elf_got_info (elf_hash_table (info)->dynobj, &sgot); | |
1730 | ||
1731 | entry = score_elf_create_local_got_entry (abfd, ibfd, g, sgot, value, | |
c3b7224a | 1732 | r_symndx, h, r_type); |
1c0d3aa6 NC |
1733 | if (!entry) |
1734 | return MINUS_ONE; | |
1735 | ||
1736 | else | |
1737 | return entry->gotidx; | |
1738 | } | |
1739 | ||
1740 | /* Returns the GOT index for the global symbol indicated by H. */ | |
1741 | ||
1742 | static bfd_vma | |
1743 | score_elf_global_got_index (bfd *abfd, struct elf_link_hash_entry *h) | |
1744 | { | |
91d6fa6a | 1745 | bfd_vma got_index; |
1c0d3aa6 NC |
1746 | asection *sgot; |
1747 | struct score_got_info *g; | |
1748 | long global_got_dynindx = 0; | |
1749 | ||
1750 | g = score_elf_got_info (abfd, &sgot); | |
1751 | if (g->global_gotsym != NULL) | |
1752 | global_got_dynindx = g->global_gotsym->dynindx; | |
1753 | ||
1754 | /* Once we determine the global GOT entry with the lowest dynamic | |
1755 | symbol table index, we must put all dynamic symbols with greater | |
1756 | indices into the GOT. That makes it easy to calculate the GOT | |
1757 | offset. */ | |
1758 | BFD_ASSERT (h->dynindx >= global_got_dynindx); | |
91d6fa6a NC |
1759 | got_index = ((h->dynindx - global_got_dynindx + g->local_gotno) * SCORE_ELF_GOT_SIZE (abfd)); |
1760 | BFD_ASSERT (got_index < sgot->size); | |
1c0d3aa6 | 1761 | |
91d6fa6a | 1762 | return got_index; |
1c0d3aa6 NC |
1763 | } |
1764 | ||
1765 | /* Returns the offset for the entry at the INDEXth position in the GOT. */ | |
91d6fa6a | 1766 | |
1c0d3aa6 | 1767 | static bfd_vma |
91d6fa6a NC |
1768 | score_elf_got_offset_from_index (bfd *dynobj, |
1769 | bfd *output_bfd, | |
1770 | bfd *input_bfd ATTRIBUTE_UNUSED, | |
1771 | bfd_vma got_index) | |
1c0d3aa6 NC |
1772 | { |
1773 | asection *sgot; | |
1774 | bfd_vma gp; | |
1c0d3aa6 | 1775 | |
c7e2358a | 1776 | score_elf_got_info (dynobj, &sgot); |
1c0d3aa6 NC |
1777 | gp = _bfd_get_gp_value (output_bfd); |
1778 | ||
91d6fa6a | 1779 | return sgot->output_section->vma + sgot->output_offset + got_index - gp; |
1c0d3aa6 NC |
1780 | } |
1781 | ||
1782 | /* Follow indirect and warning hash entries so that each got entry | |
1783 | points to the final symbol definition. P must point to a pointer | |
1784 | to the hash table we're traversing. Since this traversal may | |
1785 | modify the hash table, we set this pointer to NULL to indicate | |
1786 | we've made a potentially-destructive change to the hash table, so | |
1787 | the traversal must be restarted. */ | |
1788 | static int | |
1789 | score_elf_resolve_final_got_entry (void **entryp, void *p) | |
1790 | { | |
1791 | struct score_got_entry *entry = (struct score_got_entry *)*entryp; | |
1792 | htab_t got_entries = *(htab_t *)p; | |
1793 | ||
1794 | if (entry->abfd != NULL && entry->symndx == -1) | |
1795 | { | |
1796 | struct score_elf_link_hash_entry *h = entry->d.h; | |
1797 | ||
1798 | while (h->root.root.type == bfd_link_hash_indirect | |
c3b7224a NC |
1799 | || h->root.root.type == bfd_link_hash_warning) |
1800 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
1c0d3aa6 NC |
1801 | |
1802 | if (entry->d.h == h) | |
c3b7224a | 1803 | return 1; |
1c0d3aa6 NC |
1804 | |
1805 | entry->d.h = h; | |
1806 | ||
1807 | /* If we can't find this entry with the new bfd hash, re-insert | |
c3b7224a | 1808 | it, and get the traversal restarted. */ |
1c0d3aa6 | 1809 | if (! htab_find (got_entries, entry)) |
c3b7224a NC |
1810 | { |
1811 | htab_clear_slot (got_entries, entryp); | |
1812 | entryp = htab_find_slot (got_entries, entry, INSERT); | |
1813 | if (! *entryp) | |
1814 | *entryp = entry; | |
1815 | /* Abort the traversal, since the whole table may have | |
1816 | moved, and leave it up to the parent to restart the | |
1817 | process. */ | |
1818 | *(htab_t *)p = NULL; | |
1819 | return 0; | |
1820 | } | |
1c0d3aa6 | 1821 | /* We might want to decrement the global_gotno count, but it's |
c3b7224a | 1822 | either too early or too late for that at this point. */ |
1c0d3aa6 NC |
1823 | } |
1824 | ||
1825 | return 1; | |
1826 | } | |
1827 | ||
1828 | /* Turn indirect got entries in a got_entries table into their final locations. */ | |
1829 | static void | |
1830 | score_elf_resolve_final_got_entries (struct score_got_info *g) | |
1831 | { | |
1832 | htab_t got_entries; | |
1833 | ||
1834 | do | |
1835 | { | |
1836 | got_entries = g->got_entries; | |
1837 | ||
1838 | htab_traverse (got_entries, | |
c3b7224a NC |
1839 | score_elf_resolve_final_got_entry, |
1840 | &got_entries); | |
1c0d3aa6 NC |
1841 | } |
1842 | while (got_entries == NULL); | |
1843 | } | |
1844 | ||
1845 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. for -r */ | |
1c0d3aa6 NC |
1846 | static void |
1847 | score_elf_add_to_rel (bfd *abfd, | |
c3b7224a NC |
1848 | bfd_byte *address, |
1849 | reloc_howto_type *howto, | |
1850 | bfd_signed_vma increment) | |
1c0d3aa6 NC |
1851 | { |
1852 | bfd_signed_vma addend; | |
1853 | bfd_vma contents; | |
1854 | unsigned long offset; | |
1855 | unsigned long r_type = howto->type; | |
1856 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
1857 | ||
c3b7224a | 1858 | contents = score_bfd_get_32 (abfd, address); |
1c0d3aa6 NC |
1859 | /* Get the (signed) value from the instruction. */ |
1860 | addend = contents & howto->src_mask; | |
1861 | if (addend & ((howto->src_mask + 1) >> 1)) | |
1862 | { | |
1863 | bfd_signed_vma mask; | |
1864 | ||
1865 | mask = -1; | |
1866 | mask &= ~howto->src_mask; | |
1867 | addend |= mask; | |
1868 | } | |
1869 | /* Add in the increment, (which is a byte value). */ | |
1870 | switch (r_type) | |
1871 | { | |
1872 | case R_SCORE_PC19: | |
1873 | offset = | |
1874 | (((contents & howto->src_mask) & 0x3ff0000) >> 6) | ((contents & howto->src_mask) & 0x3ff); | |
1875 | offset += increment; | |
1876 | contents = | |
1877 | (contents & ~howto-> | |
1878 | src_mask) | (((offset << 6) & howto->src_mask) & 0x3ff0000) | (offset & 0x3ff); | |
c3b7224a | 1879 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1880 | break; |
1881 | case R_SCORE_HI16: | |
1882 | break; | |
1883 | case R_SCORE_LO16: | |
c3b7224a | 1884 | hi16_addend = score_bfd_get_32 (abfd, address - 4); |
1c0d3aa6 NC |
1885 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
1886 | offset = ((((contents >> 16) & 0x3) << 15) | (contents & 0x7fff)) >> 1; | |
1887 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
1888 | uvalue = increment + offset; | |
1889 | hi16_offset = (uvalue >> 16) << 1; | |
1890 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
1891 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 1892 | score_bfd_put_32 (abfd, hi16_value, address - 4); |
1c0d3aa6 NC |
1893 | offset = (uvalue & 0xffff) << 1; |
1894 | contents = (contents & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 1895 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1896 | break; |
1897 | case R_SCORE_24: | |
1898 | offset = | |
1899 | (((contents & howto->src_mask) >> 1) & 0x1ff8000) | ((contents & howto->src_mask) & 0x7fff); | |
1900 | offset += increment; | |
1901 | contents = | |
1902 | (contents & ~howto-> | |
1903 | src_mask) | (((offset << 1) & howto->src_mask) & 0x3ff0000) | (offset & 0x7fff); | |
c3b7224a | 1904 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 | 1905 | break; |
c3b7224a | 1906 | |
1c0d3aa6 NC |
1907 | case R_SCORE16_11: |
1908 | ||
c3b7224a | 1909 | contents = score_bfd_get_16 (abfd, address); |
1c0d3aa6 NC |
1910 | offset = contents & howto->src_mask; |
1911 | offset += increment; | |
1912 | contents = (contents & ~howto->src_mask) | (offset & howto->src_mask); | |
c3b7224a | 1913 | score_bfd_put_16 (abfd, contents, address); |
1c0d3aa6 NC |
1914 | |
1915 | break; | |
1916 | case R_SCORE16_PC8: | |
1917 | ||
c3b7224a NC |
1918 | contents = score_bfd_get_16 (abfd, address); |
1919 | offset = (contents & howto->src_mask) + ((increment >> 1) & 0x1ff); | |
1920 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1921 | score_bfd_put_16 (abfd, contents, address); | |
1922 | ||
1923 | break; | |
1924 | ||
1925 | case R_SCORE_BCMP: | |
1926 | contents = score_bfd_get_32 (abfd, address); | |
1927 | offset = (contents & howto->src_mask); | |
1928 | offset <<= howto->rightshift; | |
1929 | offset += increment; | |
1930 | offset >>= howto->rightshift; | |
1931 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1932 | score_bfd_put_32 (abfd, contents, address); | |
1933 | break; | |
1934 | ||
1935 | case R_SCORE_IMM30: | |
1936 | contents = score_bfd_get_48 (abfd, address); | |
1937 | offset = (contents & howto->src_mask); | |
1938 | offset <<= howto->rightshift; | |
1939 | offset += increment; | |
1940 | offset >>= howto->rightshift; | |
1c0d3aa6 | 1941 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); |
c3b7224a NC |
1942 | score_bfd_put_48 (abfd, contents, address); |
1943 | break; | |
1c0d3aa6 | 1944 | |
c3b7224a NC |
1945 | case R_SCORE_IMM32: |
1946 | contents = score_bfd_get_48 (abfd, address); | |
1947 | offset = (contents & howto->src_mask); | |
1948 | offset += increment; | |
1949 | contents = (contents & (~howto->src_mask)) | (offset & howto->src_mask); | |
1950 | score_bfd_put_48 (abfd, contents, address); | |
1c0d3aa6 | 1951 | break; |
c3b7224a | 1952 | |
1c0d3aa6 NC |
1953 | default: |
1954 | addend += increment; | |
1955 | contents = (contents & ~howto->dst_mask) | (addend & howto->dst_mask); | |
c3b7224a | 1956 | score_bfd_put_32 (abfd, contents, address); |
1c0d3aa6 NC |
1957 | break; |
1958 | } | |
1959 | } | |
1960 | ||
1961 | /* Perform a relocation as part of a final link. */ | |
1c0d3aa6 NC |
1962 | static bfd_reloc_status_type |
1963 | score_elf_final_link_relocate (reloc_howto_type *howto, | |
c3b7224a NC |
1964 | bfd *input_bfd, |
1965 | bfd *output_bfd, | |
1966 | asection *input_section, | |
1967 | bfd_byte *contents, | |
1968 | Elf_Internal_Rela *rel, | |
1969 | Elf_Internal_Rela *relocs, | |
1970 | bfd_vma symbol, | |
1971 | struct bfd_link_info *info, | |
1972 | const char *sym_name ATTRIBUTE_UNUSED, | |
1973 | int sym_flags ATTRIBUTE_UNUSED, | |
1974 | struct score_elf_link_hash_entry *h, | |
1975 | asection **local_sections, | |
1c0d3aa6 NC |
1976 | bfd_boolean gp_disp_p) |
1977 | { | |
1978 | unsigned long r_type; | |
1979 | unsigned long r_symndx; | |
1980 | bfd_byte *hit_data = contents + rel->r_offset; | |
1981 | bfd_vma addend; | |
1982 | /* The final GP value to be used for the relocatable, executable, or | |
1983 | shared object file being produced. */ | |
1984 | bfd_vma gp = MINUS_ONE; | |
1985 | /* The place (section offset or address) of the storage unit being relocated. */ | |
1986 | bfd_vma rel_addr; | |
1c0d3aa6 NC |
1987 | /* The offset into the global offset table at which the address of the relocation entry |
1988 | symbol, adjusted by the addend, resides during execution. */ | |
1989 | bfd_vma g = MINUS_ONE; | |
1990 | /* TRUE if the symbol referred to by this relocation is a local symbol. */ | |
1991 | bfd_boolean local_p; | |
1992 | /* The eventual value we will relocate. */ | |
1993 | bfd_vma value = symbol; | |
1994 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue, offset, abs_value = 0; | |
1995 | ||
c3b7224a | 1996 | |
1c0d3aa6 NC |
1997 | if (elf_gp (output_bfd) == 0) |
1998 | { | |
1999 | struct bfd_link_hash_entry *bh; | |
2000 | asection *o; | |
2001 | ||
2002 | bh = bfd_link_hash_lookup (info->hash, "_gp", 0, 0, 1); | |
c3b7224a | 2003 | if (bh != NULL && bh->type == bfd_link_hash_defined) |
1c0d3aa6 NC |
2004 | elf_gp (output_bfd) = (bh->u.def.value |
2005 | + bh->u.def.section->output_section->vma | |
2006 | + bh->u.def.section->output_offset); | |
2007 | else if (info->relocatable) | |
2008 | { | |
2009 | bfd_vma lo = -1; | |
2010 | ||
2011 | /* Find the GP-relative section with the lowest offset. */ | |
c3b7224a | 2012 | for (o = output_bfd->sections; o != NULL; o = o->next) |
1c0d3aa6 NC |
2013 | if (o->vma < lo) |
2014 | lo = o->vma; | |
2015 | /* And calculate GP relative to that. */ | |
2016 | elf_gp (output_bfd) = lo + ELF_SCORE_GP_OFFSET (input_bfd); | |
2017 | } | |
2018 | else | |
2019 | { | |
2020 | /* If the relocate_section function needs to do a reloc | |
2021 | involving the GP value, it should make a reloc_dangerous | |
2022 | callback to warn that GP is not defined. */ | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | /* Parse the relocation. */ | |
2027 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2028 | r_type = ELF32_R_TYPE (rel->r_info); | |
2029 | rel_addr = (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
c3b7224a | 2030 | local_p = score_elf_local_relocation_p (input_bfd, rel, local_sections, TRUE); |
1c0d3aa6 | 2031 | |
1c0d3aa6 NC |
2032 | if (r_type == R_SCORE_GOT15) |
2033 | { | |
2034 | const Elf_Internal_Rela *relend; | |
2035 | const Elf_Internal_Rela *lo16_rel; | |
2036 | const struct elf_backend_data *bed; | |
2037 | bfd_vma lo_value = 0; | |
2038 | ||
1c0d3aa6 NC |
2039 | bed = get_elf_backend_data (output_bfd); |
2040 | relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel; | |
2041 | lo16_rel = score_elf_next_relocation (input_bfd, R_SCORE_GOT_LO16, rel, relend); | |
0150d082 | 2042 | if ((local_p) && (lo16_rel != NULL)) |
c3b7224a NC |
2043 | { |
2044 | bfd_vma tmp = 0; | |
2045 | tmp = score_bfd_get_32 (input_bfd, contents + lo16_rel->r_offset); | |
2046 | lo_value = (((tmp >> 16) & 0x3) << 14) | ((tmp & 0x7fff) >> 1); | |
2047 | } | |
0150d082 | 2048 | addend = lo_value; |
1c0d3aa6 | 2049 | } |
c3b7224a NC |
2050 | /* For score3 R_SCORE_ABS32. */ |
2051 | else if (r_type == R_SCORE_ABS32 || r_type == R_SCORE_REL32) | |
1c0d3aa6 NC |
2052 | { |
2053 | addend = (bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask; | |
2054 | } | |
c3b7224a NC |
2055 | else |
2056 | { | |
2057 | addend = (score_bfd_get_32 (input_bfd, hit_data) >> howto->bitpos) & howto->src_mask; | |
2058 | } | |
1c0d3aa6 | 2059 | |
1c0d3aa6 NC |
2060 | /* If we haven't already determined the GOT offset, or the GP value, |
2061 | and we're going to need it, get it now. */ | |
2062 | switch (r_type) | |
2063 | { | |
2064 | case R_SCORE_CALL15: | |
2065 | case R_SCORE_GOT15: | |
2066 | if (!local_p) | |
2067 | { | |
0150d082 ML |
2068 | g = score_elf_global_got_index (elf_hash_table (info)->dynobj, |
2069 | (struct elf_link_hash_entry *) h); | |
4dfe6ac6 | 2070 | if ((! elf_hash_table (info)->dynamic_sections_created |
0150d082 ML |
2071 | || (info->shared |
2072 | && (info->symbolic || h->root.dynindx == -1) | |
2073 | && h->root.def_regular))) | |
2074 | { | |
2075 | /* This is a static link or a -Bsymbolic link. The | |
2076 | symbol is defined locally, or was forced to be local. | |
2077 | We must initialize this entry in the GOT. */ | |
2078 | bfd *tmpbfd = elf_hash_table (info)->dynobj; | |
2079 | asection *sgot = score_elf_got_section (tmpbfd, FALSE); | |
c3b7224a | 2080 | score_bfd_put_32 (tmpbfd, value, sgot->contents + g); |
0150d082 ML |
2081 | } |
2082 | } | |
1c0d3aa6 NC |
2083 | else if (r_type == R_SCORE_GOT15 || r_type == R_SCORE_CALL15) |
2084 | { | |
c3b7224a NC |
2085 | /* There's no need to create a local GOT entry here; the |
2086 | calculation for a local GOT15 entry does not involve G. */ | |
2087 | ; | |
2088 | } | |
1c0d3aa6 NC |
2089 | else |
2090 | { | |
c3b7224a | 2091 | g = score_elf_local_got_index (output_bfd, input_bfd, info, |
1c0d3aa6 | 2092 | symbol + addend, r_symndx, h, r_type); |
c3b7224a NC |
2093 | if (g == MINUS_ONE) |
2094 | return bfd_reloc_outofrange; | |
1c0d3aa6 NC |
2095 | } |
2096 | ||
2097 | /* Convert GOT indices to actual offsets. */ | |
2098 | g = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
c3b7224a | 2099 | output_bfd, input_bfd, g); |
1c0d3aa6 NC |
2100 | break; |
2101 | ||
2102 | case R_SCORE_HI16: | |
2103 | case R_SCORE_LO16: | |
2104 | case R_SCORE_GPREL32: | |
1c0d3aa6 NC |
2105 | gp = _bfd_get_gp_value (output_bfd); |
2106 | break; | |
2107 | ||
2108 | case R_SCORE_GP15: | |
2109 | gp = _bfd_get_gp_value (output_bfd); | |
2110 | ||
2111 | default: | |
2112 | break; | |
2113 | } | |
2114 | ||
2115 | switch (r_type) | |
2116 | { | |
2117 | case R_SCORE_NONE: | |
2118 | return bfd_reloc_ok; | |
2119 | ||
2120 | case R_SCORE_ABS32: | |
2121 | case R_SCORE_REL32: | |
2122 | if ((info->shared | |
c3b7224a NC |
2123 | || (elf_hash_table (info)->dynamic_sections_created |
2124 | && h != NULL | |
2125 | && h->root.def_dynamic | |
2126 | && !h->root.def_regular)) | |
cf35638d | 2127 | && r_symndx != STN_UNDEF |
c3b7224a NC |
2128 | && (input_section->flags & SEC_ALLOC) != 0) |
2129 | { | |
2130 | /* If we're creating a shared library, or this relocation is against a symbol | |
1c0d3aa6 NC |
2131 | in a shared library, then we can't know where the symbol will end up. |
2132 | So, we create a relocation record in the output, and leave the job up | |
2133 | to the dynamic linker. */ | |
c3b7224a NC |
2134 | value = addend; |
2135 | if (!score_elf_create_dynamic_relocation (output_bfd, info, rel, h, | |
2136 | symbol, &value, | |
2137 | input_section)) | |
2138 | return bfd_reloc_undefined; | |
2139 | } | |
cf35638d TS |
2140 | else if (r_symndx == STN_UNDEF) |
2141 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols | |
c3b7224a NC |
2142 | from removed linkonce sections, or sections discarded by |
2143 | a linker script. */ | |
2144 | value = 0; | |
1c0d3aa6 | 2145 | else |
c3b7224a NC |
2146 | { |
2147 | if (r_type != R_SCORE_REL32) | |
2148 | value = symbol + addend; | |
2149 | else | |
2150 | value = addend; | |
2151 | } | |
1c0d3aa6 NC |
2152 | value &= howto->dst_mask; |
2153 | bfd_put_32 (input_bfd, value, hit_data); | |
2154 | return bfd_reloc_ok; | |
2155 | ||
2156 | case R_SCORE_ABS16: | |
2157 | value += addend; | |
2158 | if ((long)value > 0x7fff || (long)value < -0x8000) | |
2159 | return bfd_reloc_overflow; | |
c3b7224a | 2160 | score_bfd_put_16 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2161 | return bfd_reloc_ok; |
2162 | ||
2163 | case R_SCORE_24: | |
c3b7224a | 2164 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2165 | offset = (((addend & howto->src_mask) >> 1) & 0x1ff8000) | ((addend & howto->src_mask) & 0x7fff); |
2166 | if ((offset & 0x1000000) != 0) | |
2167 | offset |= 0xfe000000; | |
2168 | value += offset; | |
c3b7224a NC |
2169 | abs_value = abs (value - rel_addr); |
2170 | if ((abs_value & 0xfe000000) != 0) | |
2171 | return bfd_reloc_overflow; | |
1c0d3aa6 NC |
2172 | addend = (addend & ~howto->src_mask) |
2173 | | (((value << 1) & howto->src_mask) & 0x3ff0000) | (value & 0x7fff); | |
c3b7224a | 2174 | score_bfd_put_32 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2175 | return bfd_reloc_ok; |
2176 | ||
c3b7224a NC |
2177 | /* signed imm32. */ |
2178 | case R_SCORE_IMM30: | |
2179 | { | |
2180 | int not_word_align_p = 0; | |
2181 | bfd_vma imm_offset = 0; | |
2182 | addend = score_bfd_get_48 (input_bfd, hit_data); | |
2183 | imm_offset = ((addend >> 7) & 0xff) | |
2184 | | (((addend >> 16) & 0x7fff) << 8) | |
2185 | | (((addend >> 32) & 0x7f) << 23); | |
2186 | imm_offset <<= howto->rightshift; | |
2187 | value += imm_offset; | |
2188 | value &= 0xffffffff; | |
2189 | ||
2190 | /* Check lw48/sw48 rd, value/label word align. */ | |
2191 | if ((value & 0x3) != 0) | |
2192 | not_word_align_p = 1; | |
2193 | ||
2194 | value >>= howto->rightshift; | |
2195 | addend = (addend & ~howto->src_mask) | |
2196 | | (((value & 0xff) >> 0) << 7) | |
2197 | | (((value & 0x7fff00) >> 8) << 16) | |
2198 | | (((value & 0x3f800000) >> 23) << 32); | |
2199 | score_bfd_put_48 (input_bfd, addend, hit_data); | |
2200 | if (not_word_align_p) | |
2201 | return bfd_reloc_other; | |
2202 | else | |
2203 | return bfd_reloc_ok; | |
2204 | } | |
2205 | ||
2206 | case R_SCORE_IMM32: | |
2207 | { | |
2208 | bfd_vma imm_offset = 0; | |
2209 | addend = score_bfd_get_48 (input_bfd, hit_data); | |
2210 | imm_offset = ((addend >> 5) & 0x3ff) | |
2211 | | (((addend >> 16) & 0x7fff) << 10) | |
2212 | | (((addend >> 32) & 0x7f) << 25); | |
2213 | value += imm_offset; | |
2214 | value &= 0xffffffff; | |
2215 | addend = (addend & ~howto->src_mask) | |
2216 | | ((value & 0x3ff) << 5) | |
2217 | | (((value >> 10) & 0x7fff) << 16) | |
2218 | | (((value >> 25) & 0x7f) << 32); | |
2219 | score_bfd_put_48 (input_bfd, addend, hit_data); | |
2220 | return bfd_reloc_ok; | |
2221 | } | |
2222 | ||
1c0d3aa6 | 2223 | case R_SCORE_PC19: |
c3b7224a | 2224 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2225 | offset = (((addend & howto->src_mask) & 0x3ff0000) >> 6) | ((addend & howto->src_mask) & 0x3ff); |
2226 | if ((offset & 0x80000) != 0) | |
2227 | offset |= 0xfff00000; | |
2228 | abs_value = value = value - rel_addr + offset; | |
2229 | /* exceed 20 bit : overflow. */ | |
2230 | if ((abs_value & 0x80000000) == 0x80000000) | |
2231 | abs_value = 0xffffffff - value + 1; | |
2232 | if ((abs_value & 0xfff80000) != 0) | |
2233 | return bfd_reloc_overflow; | |
2234 | addend = (addend & ~howto->src_mask) | |
2235 | | (((value << 6) & howto->src_mask) & 0x3ff0000) | (value & 0x3ff); | |
c3b7224a | 2236 | score_bfd_put_32 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2237 | return bfd_reloc_ok; |
2238 | ||
2239 | case R_SCORE16_11: | |
c3b7224a | 2240 | addend = score_bfd_get_16 (input_bfd, hit_data); |
1c0d3aa6 NC |
2241 | offset = addend & howto->src_mask; |
2242 | if ((offset & 0x800) != 0) /* Offset is negative. */ | |
2243 | offset |= 0xfffff000; | |
2244 | value += offset; | |
c3b7224a NC |
2245 | abs_value = abs (value - rel_addr); |
2246 | if ((abs_value & 0xfffff000) != 0) | |
2247 | return bfd_reloc_overflow; | |
1c0d3aa6 | 2248 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); |
c3b7224a | 2249 | score_bfd_put_16 (input_bfd, addend, hit_data); |
1c0d3aa6 NC |
2250 | return bfd_reloc_ok; |
2251 | ||
2252 | case R_SCORE16_PC8: | |
c3b7224a | 2253 | addend = score_bfd_get_16 (input_bfd, hit_data); |
1c0d3aa6 | 2254 | offset = (addend & howto->src_mask) << 1; |
c3b7224a | 2255 | if ((offset & 0x200) != 0) /* Offset is negative. */ |
1c0d3aa6 NC |
2256 | offset |= 0xfffffe00; |
2257 | abs_value = value = value - rel_addr + offset; | |
2258 | /* Sign bit + exceed 9 bit. */ | |
c3b7224a | 2259 | if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00)) |
1c0d3aa6 NC |
2260 | return bfd_reloc_overflow; |
2261 | value >>= 1; | |
2262 | addend = (addend & ~howto->src_mask) | (value & howto->src_mask); | |
c3b7224a NC |
2263 | score_bfd_put_16 (input_bfd, addend, hit_data); |
2264 | return bfd_reloc_ok; | |
2265 | ||
2266 | case R_SCORE_BCMP: | |
2267 | addend = score_bfd_get_32 (input_bfd, hit_data); | |
2268 | offset = (addend & howto->src_mask) << howto->rightshift; | |
2269 | if ((offset & 0x200) != 0) /* Offset is negative. */ | |
2270 | offset |= 0xfffffe00; | |
2271 | value = value - rel_addr + offset; | |
2272 | /* Sign bit + exceed 9 bit. */ | |
2273 | if (((value & 0xfffffe00) != 0) && ((value & 0xfffffe00) != 0xfffffe00)) | |
2274 | return bfd_reloc_overflow; | |
2275 | value >>= howto->rightshift; | |
2276 | addend = (addend & ~howto->src_mask) | |
2277 | | (value & 0x1) | |
2278 | | (((value >> 1) & 0x7) << 7) | |
2279 | | (((value >> 4) & 0x1f) << 21); | |
2280 | score_bfd_put_32 (input_bfd, addend, hit_data); | |
1c0d3aa6 NC |
2281 | return bfd_reloc_ok; |
2282 | ||
2283 | case R_SCORE_HI16: | |
2284 | return bfd_reloc_ok; | |
2285 | ||
2286 | case R_SCORE_LO16: | |
c3b7224a | 2287 | hi16_addend = score_bfd_get_32 (input_bfd, hit_data - 4); |
1c0d3aa6 | 2288 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
c3b7224a | 2289 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2290 | offset = ((((addend >> 16) & 0x3) << 15) | (addend & 0x7fff)) >> 1; |
2291 | offset = (hi16_offset << 16) | (offset & 0xffff); | |
2292 | ||
2293 | if (!gp_disp_p) | |
c3b7224a | 2294 | uvalue = value + offset; |
1c0d3aa6 | 2295 | else |
c3b7224a | 2296 | uvalue = offset + gp - rel_addr + 4; |
1c0d3aa6 NC |
2297 | |
2298 | hi16_offset = (uvalue >> 16) << 1; | |
2299 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
2300 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 2301 | score_bfd_put_32 (input_bfd, hi16_value, hit_data - 4); |
1c0d3aa6 NC |
2302 | offset = (uvalue & 0xffff) << 1; |
2303 | value = (addend & (~(howto->dst_mask))) | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 2304 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2305 | return bfd_reloc_ok; |
2306 | ||
2307 | case R_SCORE_GP15: | |
c3b7224a | 2308 | addend = score_bfd_get_32 (input_bfd, hit_data); |
1c0d3aa6 NC |
2309 | offset = addend & 0x7fff; |
2310 | if ((offset & 0x4000) == 0x4000) | |
2311 | offset |= 0xffffc000; | |
2312 | value = value + offset - gp; | |
2313 | if (((value & 0xffffc000) != 0) && ((value & 0xffffc000) != 0xffffc000)) | |
2314 | return bfd_reloc_overflow; | |
2315 | value = (addend & ~howto->src_mask) | (value & howto->src_mask); | |
c3b7224a | 2316 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2317 | return bfd_reloc_ok; |
2318 | ||
2319 | case R_SCORE_GOT15: | |
2320 | case R_SCORE_CALL15: | |
2321 | if (local_p) | |
c3b7224a NC |
2322 | { |
2323 | bfd_boolean forced; | |
1c0d3aa6 | 2324 | |
c3b7224a | 2325 | /* The special case is when the symbol is forced to be local. We need the |
1c0d3aa6 | 2326 | full address in the GOT since no R_SCORE_GOT_LO16 relocation follows. */ |
c3b7224a NC |
2327 | forced = ! score_elf_local_relocation_p (input_bfd, rel, |
2328 | local_sections, FALSE); | |
2329 | value = score_elf_got16_entry (output_bfd, input_bfd, info, | |
2330 | symbol + addend, forced); | |
2331 | if (value == MINUS_ONE) | |
2332 | return bfd_reloc_outofrange; | |
2333 | value = score_elf_got_offset_from_index (elf_hash_table (info)->dynobj, | |
2334 | output_bfd, input_bfd, value); | |
2335 | } | |
1c0d3aa6 | 2336 | else |
c3b7224a NC |
2337 | { |
2338 | value = g; | |
2339 | } | |
1c0d3aa6 NC |
2340 | |
2341 | if ((long) value > 0x3fff || (long) value < -0x4000) | |
2342 | return bfd_reloc_overflow; | |
0150d082 | 2343 | |
c3b7224a | 2344 | addend = score_bfd_get_32 (input_bfd, hit_data); |
0150d082 | 2345 | value = (addend & ~howto->dst_mask) | (value & howto->dst_mask); |
c3b7224a | 2346 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2347 | return bfd_reloc_ok; |
2348 | ||
2349 | case R_SCORE_GPREL32: | |
2350 | value = (addend + symbol - gp); | |
2351 | value &= howto->dst_mask; | |
c3b7224a | 2352 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2353 | return bfd_reloc_ok; |
2354 | ||
2355 | case R_SCORE_GOT_LO16: | |
c3b7224a | 2356 | addend = score_bfd_get_32 (input_bfd, hit_data); |
0150d082 | 2357 | value = (((addend >> 16) & 0x3) << 14) | ((addend & 0x7fff) >> 1); |
1c0d3aa6 | 2358 | value += symbol; |
c3b7224a | 2359 | value = (addend & (~(howto->dst_mask))) | ((value & 0x3fff) << 1) |
0150d082 | 2360 | | (((value >> 14) & 0x3) << 16); |
1c0d3aa6 | 2361 | |
c3b7224a | 2362 | score_bfd_put_32 (input_bfd, value, hit_data); |
1c0d3aa6 NC |
2363 | return bfd_reloc_ok; |
2364 | ||
2365 | case R_SCORE_DUMMY_HI16: | |
2366 | return bfd_reloc_ok; | |
2367 | ||
2368 | case R_SCORE_GNU_VTINHERIT: | |
2369 | case R_SCORE_GNU_VTENTRY: | |
2370 | /* We don't do anything with these at present. */ | |
2371 | return bfd_reloc_continue; | |
2372 | ||
2373 | default: | |
2374 | return bfd_reloc_notsupported; | |
2375 | } | |
2376 | } | |
2377 | ||
2378 | /* Score backend functions. */ | |
1c0d3aa6 | 2379 | static void |
c3b7224a NC |
2380 | s3_bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
2381 | arelent *bfd_reloc, | |
2382 | Elf_Internal_Rela *elf_reloc) | |
1c0d3aa6 NC |
2383 | { |
2384 | unsigned int r_type; | |
2385 | ||
2386 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
c3b7224a | 2387 | if (r_type >= ARRAY_SIZE (elf32_score_howto_table)) |
1c0d3aa6 NC |
2388 | bfd_reloc->howto = NULL; |
2389 | else | |
2390 | bfd_reloc->howto = &elf32_score_howto_table[r_type]; | |
2391 | } | |
2392 | ||
2393 | /* Relocate an score ELF section. */ | |
1c0d3aa6 | 2394 | static bfd_boolean |
c3b7224a NC |
2395 | s3_bfd_score_elf_relocate_section (bfd *output_bfd, |
2396 | struct bfd_link_info *info, | |
2397 | bfd *input_bfd, | |
2398 | asection *input_section, | |
2399 | bfd_byte *contents, | |
2400 | Elf_Internal_Rela *relocs, | |
2401 | Elf_Internal_Sym *local_syms, | |
2402 | asection **local_sections) | |
1c0d3aa6 NC |
2403 | { |
2404 | Elf_Internal_Shdr *symtab_hdr; | |
1c0d3aa6 NC |
2405 | Elf_Internal_Rela *rel; |
2406 | Elf_Internal_Rela *relend; | |
2407 | const char *name; | |
2408 | unsigned long offset; | |
2409 | unsigned long hi16_addend, hi16_offset, hi16_value, uvalue; | |
2410 | size_t extsymoff; | |
2411 | bfd_boolean gp_disp_p = FALSE; | |
2412 | ||
1c0d3aa6 NC |
2413 | /* Sort dynsym. */ |
2414 | if (elf_hash_table (info)->dynamic_sections_created) | |
2415 | { | |
2416 | bfd_size_type dynsecsymcount = 0; | |
2417 | if (info->shared) | |
c3b7224a NC |
2418 | { |
2419 | asection * p; | |
2420 | const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); | |
2421 | ||
2422 | for (p = output_bfd->sections; p ; p = p->next) | |
2423 | if ((p->flags & SEC_EXCLUDE) == 0 | |
2424 | && (p->flags & SEC_ALLOC) != 0 | |
2425 | && !(*bed->elf_backend_omit_section_dynsym) (output_bfd, info, p)) | |
2426 | ++ dynsecsymcount; | |
2427 | } | |
1c0d3aa6 NC |
2428 | |
2429 | if (!score_elf_sort_hash_table (info, dynsecsymcount + 1)) | |
c3b7224a | 2430 | return FALSE; |
1c0d3aa6 NC |
2431 | } |
2432 | ||
2433 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
c3b7224a | 2434 | extsymoff = (elf_bad_symtab (input_bfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
2435 | rel = relocs; |
2436 | relend = relocs + input_section->reloc_count; | |
2437 | for (; rel < relend; rel++) | |
2438 | { | |
2439 | int r_type; | |
2440 | reloc_howto_type *howto; | |
2441 | unsigned long r_symndx; | |
2442 | Elf_Internal_Sym *sym; | |
2443 | asection *sec; | |
2444 | struct score_elf_link_hash_entry *h; | |
2445 | bfd_vma relocation = 0; | |
2446 | bfd_reloc_status_type r; | |
2447 | arelent bfd_reloc; | |
2448 | ||
2449 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2450 | r_type = ELF32_R_TYPE (rel->r_info); | |
2451 | ||
c3b7224a | 2452 | s3_bfd_score_info_to_howto (input_bfd, &bfd_reloc, (Elf_Internal_Rela *) rel); |
1c0d3aa6 NC |
2453 | howto = bfd_reloc.howto; |
2454 | ||
1c0d3aa6 NC |
2455 | h = NULL; |
2456 | sym = NULL; | |
2457 | sec = NULL; | |
2458 | ||
2459 | if (r_symndx < extsymoff) | |
2460 | { | |
2461 | sym = local_syms + r_symndx; | |
2462 | sec = local_sections[r_symndx]; | |
f36b9bcd | 2463 | relocation = (sec->output_section->vma |
c3b7224a NC |
2464 | + sec->output_offset |
2465 | + sym->st_value); | |
f36b9bcd | 2466 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
1c0d3aa6 | 2467 | |
ab96bf03 | 2468 | if (!info->relocatable |
c3b7224a NC |
2469 | && (sec->flags & SEC_MERGE) |
2470 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1c0d3aa6 NC |
2471 | { |
2472 | asection *msec; | |
2473 | bfd_vma addend, value; | |
2474 | ||
2475 | switch (r_type) | |
2476 | { | |
2477 | case R_SCORE_HI16: | |
2478 | break; | |
2479 | case R_SCORE_LO16: | |
c3b7224a | 2480 | hi16_addend = score_bfd_get_32 (input_bfd, contents + rel->r_offset - 4); |
1c0d3aa6 | 2481 | hi16_offset = ((((hi16_addend >> 16) & 0x3) << 15) | (hi16_addend & 0x7fff)) >> 1; |
c3b7224a | 2482 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); |
1c0d3aa6 NC |
2483 | offset = ((((value >> 16) & 0x3) << 15) | (value & 0x7fff)) >> 1; |
2484 | addend = (hi16_offset << 16) | (offset & 0xffff); | |
2485 | msec = sec; | |
2486 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2487 | addend -= relocation; | |
2488 | addend += msec->output_section->vma + msec->output_offset; | |
2489 | uvalue = addend; | |
2490 | hi16_offset = (uvalue >> 16) << 1; | |
2491 | hi16_value = (hi16_addend & (~(howto->dst_mask))) | |
2492 | | (hi16_offset & 0x7fff) | ((hi16_offset << 1) & 0x30000); | |
c3b7224a | 2493 | score_bfd_put_32 (input_bfd, hi16_value, contents + rel->r_offset - 4); |
1c0d3aa6 NC |
2494 | offset = (uvalue & 0xffff) << 1; |
2495 | value = (value & (~(howto->dst_mask))) | |
2496 | | (offset & 0x7fff) | ((offset << 1) & 0x30000); | |
c3b7224a | 2497 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); |
1c0d3aa6 | 2498 | break; |
c3b7224a NC |
2499 | |
2500 | case R_SCORE_IMM32: | |
2501 | { | |
2502 | value = score_bfd_get_48 (input_bfd, contents + rel->r_offset); | |
2503 | addend = ((value >> 5) & 0x3ff) | |
2504 | | (((value >> 16) & 0x7fff) << 10) | |
2505 | | (((value >> 32) & 0x7f) << 25); | |
2506 | msec = sec; | |
2507 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2508 | addend -= relocation; | |
2509 | addend += msec->output_section->vma + msec->output_offset; | |
2510 | addend &= 0xffffffff; | |
2511 | value = (value & ~howto->src_mask) | |
2512 | | ((addend & 0x3ff) << 5) | |
2513 | | (((addend >> 10) & 0x7fff) << 16) | |
2514 | | (((addend >> 25) & 0x7f) << 32); | |
2515 | score_bfd_put_48 (input_bfd, value, contents + rel->r_offset); | |
2516 | break; | |
2517 | } | |
2518 | ||
2519 | case R_SCORE_IMM30: | |
2520 | { | |
2521 | int not_word_align_p = 0; | |
2522 | value = score_bfd_get_48 (input_bfd, contents + rel->r_offset); | |
2523 | addend = ((value >> 7) & 0xff) | |
2524 | | (((value >> 16) & 0x7fff) << 8) | |
2525 | | (((value >> 32) & 0x7f) << 23); | |
2526 | addend <<= howto->rightshift; | |
2527 | msec = sec; | |
2528 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); | |
2529 | addend -= relocation; | |
2530 | addend += msec->output_section->vma + msec->output_offset; | |
2531 | addend &= 0xffffffff; | |
2532 | ||
2533 | /* Check lw48/sw48 rd, value/label word align. */ | |
2534 | if ((addend & 0x3) != 0) | |
2535 | not_word_align_p = 1; | |
2536 | ||
2537 | addend >>= howto->rightshift; | |
2538 | value = (value & ~howto->src_mask) | |
2539 | | (((addend & 0xff) >> 0) << 7) | |
2540 | | (((addend & 0x7fff00) >> 8) << 16) | |
2541 | | (((addend & 0x3f800000) >> 23) << 32); | |
2542 | score_bfd_put_48 (input_bfd, value, contents + rel->r_offset); | |
2543 | ||
2544 | if (not_word_align_p) | |
2545 | return bfd_reloc_other; | |
2546 | else | |
2547 | break; | |
2548 | } | |
2549 | ||
0150d082 | 2550 | case R_SCORE_GOT_LO16: |
c3b7224a | 2551 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); |
0150d082 ML |
2552 | addend = (((value >> 16) & 0x3) << 14) | ((value & 0x7fff) >> 1); |
2553 | msec = sec; | |
2554 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2555 | addend += msec->output_section->vma + msec->output_offset; | |
2556 | value = (value & (~(howto->dst_mask))) | ((addend & 0x3fff) << 1) | |
2557 | | (((addend >> 14) & 0x3) << 16); | |
2558 | ||
c3b7224a | 2559 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); |
0150d082 | 2560 | break; |
c3b7224a NC |
2561 | |
2562 | case R_SCORE_ABS32: | |
2563 | case R_SCORE_REL32: | |
1c0d3aa6 NC |
2564 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); |
2565 | /* Get the (signed) value from the instruction. */ | |
2566 | addend = value & howto->src_mask; | |
2567 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2568 | { | |
2569 | bfd_signed_vma mask; | |
2570 | ||
2571 | mask = -1; | |
2572 | mask &= ~howto->src_mask; | |
2573 | addend |= mask; | |
2574 | } | |
2575 | msec = sec; | |
2576 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2577 | addend += msec->output_section->vma + msec->output_offset; | |
2578 | value = (value & ~howto->dst_mask) | (addend & howto->dst_mask); | |
2579 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2580 | break; | |
c3b7224a NC |
2581 | |
2582 | default: | |
2583 | value = score_bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2584 | /* Get the (signed) value from the instruction. */ | |
2585 | addend = value & howto->src_mask; | |
2586 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2587 | { | |
2588 | bfd_signed_vma mask; | |
2589 | ||
2590 | mask = -1; | |
2591 | mask &= ~howto->src_mask; | |
2592 | addend |= mask; | |
2593 | } | |
2594 | msec = sec; | |
2595 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) - relocation; | |
2596 | addend += msec->output_section->vma + msec->output_offset; | |
2597 | value = (value & ~howto->dst_mask) | (addend & howto->dst_mask); | |
2598 | score_bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
2599 | break; | |
1c0d3aa6 NC |
2600 | } |
2601 | } | |
2602 | } | |
2603 | else | |
2604 | { | |
c3b7224a NC |
2605 | /* For global symbols we look up the symbol in the hash-table. */ |
2606 | h = ((struct score_elf_link_hash_entry *) | |
2607 | elf_sym_hashes (input_bfd) [r_symndx - extsymoff]); | |
2608 | /* Find the real hash-table entry for this symbol. */ | |
2609 | while (h->root.root.type == bfd_link_hash_indirect | |
2610 | || h->root.root.type == bfd_link_hash_warning) | |
2611 | h = (struct score_elf_link_hash_entry *) h->root.root.u.i.link; | |
2612 | ||
2613 | /* Record the name of this symbol, for our caller. */ | |
2614 | name = h->root.root.root.string; | |
2615 | ||
2616 | /* See if this is the special GP_DISP_LABEL symbol. Note that such a | |
2617 | symbol must always be a global symbol. */ | |
2618 | if (strcmp (name, GP_DISP_LABEL) == 0) | |
2619 | { | |
2620 | /* Relocations against GP_DISP_LABEL are permitted only with | |
2621 | R_SCORE_HI16 and R_SCORE_LO16 relocations. */ | |
2622 | if (r_type != R_SCORE_HI16 && r_type != R_SCORE_LO16) | |
2623 | return bfd_reloc_notsupported; | |
2624 | ||
2625 | gp_disp_p = TRUE; | |
2626 | } | |
2627 | ||
2628 | /* If this symbol is defined, calculate its address. Note that | |
2629 | GP_DISP_LABEL is a magic symbol, always implicitly defined by the | |
2630 | linker, so it's inappropriate to check to see whether or not | |
2631 | its defined. */ | |
2632 | else if ((h->root.root.type == bfd_link_hash_defined | |
2633 | || h->root.root.type == bfd_link_hash_defweak) | |
2634 | && h->root.root.u.def.section) | |
2635 | { | |
2636 | sec = h->root.root.u.def.section; | |
2637 | if (sec->output_section) | |
2638 | relocation = (h->root.root.u.def.value | |
2639 | + sec->output_section->vma | |
2640 | + sec->output_offset); | |
2641 | else | |
2642 | { | |
2643 | relocation = h->root.root.u.def.value; | |
2644 | } | |
2645 | } | |
2646 | else if (h->root.root.type == bfd_link_hash_undefweak) | |
2647 | /* We allow relocations against undefined weak symbols, giving | |
2648 | it the value zero, so that you can undefined weak functions | |
2649 | and check to see if they exist by looking at their addresses. */ | |
2650 | relocation = 0; | |
2651 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
2652 | && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT) | |
2653 | relocation = 0; | |
2654 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
2655 | { | |
2656 | /* If this is a dynamic link, we should have created a _DYNAMIC_LINK symbol | |
2657 | in s3_bfd_score_elf_create_dynamic_sections. Otherwise, we should define | |
1c0d3aa6 | 2658 | the symbol with a value of 0. */ |
c3b7224a NC |
2659 | BFD_ASSERT (! info->shared); |
2660 | BFD_ASSERT (bfd_get_section_by_name (output_bfd, ".dynamic") == NULL); | |
2661 | relocation = 0; | |
2662 | } | |
2663 | else if (!info->relocatable) | |
2664 | { | |
2665 | if (! ((*info->callbacks->undefined_symbol) | |
2666 | (info, h->root.root.root.string, input_bfd, | |
2667 | input_section, rel->r_offset, | |
2668 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR) | |
2669 | || ELF_ST_VISIBILITY (h->root.other)))) | |
2670 | return bfd_reloc_undefined; | |
2671 | relocation = 0; | |
2672 | } | |
1c0d3aa6 NC |
2673 | } |
2674 | ||
dbaa2011 | 2675 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2676 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2677 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
2678 | |
2679 | if (info->relocatable) | |
2680 | { | |
2681 | /* This is a relocatable link. We don't have to change | |
2682 | anything, unless the reloc is against a section symbol, | |
2683 | in which case we have to adjust according to where the | |
2684 | section symbol winds up in the output section. */ | |
c3b7224a NC |
2685 | if (r_symndx < symtab_hdr->sh_info) |
2686 | { | |
2687 | sym = local_syms + r_symndx; | |
2688 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2689 | { | |
2690 | sec = local_sections[r_symndx]; | |
2691 | score_elf_add_to_rel (input_bfd, contents + rel->r_offset, | |
2692 | howto, (bfd_signed_vma) (sec->output_offset + sym->st_value)); | |
2693 | } | |
2694 | } | |
ab96bf03 AM |
2695 | continue; |
2696 | } | |
2697 | ||
c3b7224a | 2698 | /* This is a final link. */ |
1c0d3aa6 NC |
2699 | r = score_elf_final_link_relocate (howto, input_bfd, output_bfd, |
2700 | input_section, contents, rel, relocs, | |
9838404f | 2701 | relocation, info, name, |
1c0d3aa6 | 2702 | (h ? ELF_ST_TYPE ((unsigned int)h->root.root.type) : |
c3b7224a | 2703 | ELF_ST_TYPE ((unsigned int)sym->st_info)), h, local_sections, |
1c0d3aa6 NC |
2704 | gp_disp_p); |
2705 | ||
2706 | if (r != bfd_reloc_ok) | |
2707 | { | |
2708 | const char *msg = (const char *)0; | |
2709 | ||
2710 | switch (r) | |
2711 | { | |
2712 | case bfd_reloc_overflow: | |
2713 | /* If the overflowing reloc was to an undefined symbol, | |
2714 | we have already printed one error message and there | |
2715 | is no point complaining again. */ | |
2716 | if (((!h) || (h->root.root.type != bfd_link_hash_undefined)) | |
2717 | && (!((*info->callbacks->reloc_overflow) | |
2718 | (info, NULL, name, howto->name, (bfd_vma) 0, | |
2719 | input_bfd, input_section, rel->r_offset)))) | |
2720 | return FALSE; | |
2721 | break; | |
2722 | case bfd_reloc_undefined: | |
2723 | if (!((*info->callbacks->undefined_symbol) | |
2724 | (info, name, input_bfd, input_section, rel->r_offset, TRUE))) | |
2725 | return FALSE; | |
2726 | break; | |
2727 | ||
2728 | case bfd_reloc_outofrange: | |
2729 | msg = _("internal error: out of range error"); | |
2730 | goto common_error; | |
2731 | ||
2732 | case bfd_reloc_notsupported: | |
2733 | msg = _("internal error: unsupported relocation error"); | |
2734 | goto common_error; | |
2735 | ||
2736 | case bfd_reloc_dangerous: | |
2737 | msg = _("internal error: dangerous error"); | |
2738 | goto common_error; | |
2739 | ||
c3b7224a NC |
2740 | /* Use bfd_reloc_other to check lw48, sw48 word align. */ |
2741 | case bfd_reloc_other: | |
2742 | msg = _("address not word align"); | |
2743 | goto common_error; | |
2744 | ||
1c0d3aa6 NC |
2745 | default: |
2746 | msg = _("internal error: unknown error"); | |
2747 | /* fall through */ | |
2748 | ||
2749 | common_error: | |
2750 | if (!((*info->callbacks->warning) | |
2751 | (info, msg, name, input_bfd, input_section, rel->r_offset))) | |
2752 | return FALSE; | |
2753 | break; | |
2754 | } | |
2755 | } | |
2756 | } | |
2757 | ||
2758 | return TRUE; | |
2759 | } | |
2760 | ||
2761 | /* Look through the relocs for a section during the first phase, and | |
2762 | allocate space in the global offset table. */ | |
1c0d3aa6 | 2763 | static bfd_boolean |
c3b7224a NC |
2764 | s3_bfd_score_elf_check_relocs (bfd *abfd, |
2765 | struct bfd_link_info *info, | |
2766 | asection *sec, | |
2767 | const Elf_Internal_Rela *relocs) | |
1c0d3aa6 NC |
2768 | { |
2769 | const char *name; | |
2770 | bfd *dynobj; | |
2771 | Elf_Internal_Shdr *symtab_hdr; | |
2772 | struct elf_link_hash_entry **sym_hashes; | |
2773 | struct score_got_info *g; | |
2774 | size_t extsymoff; | |
2775 | const Elf_Internal_Rela *rel; | |
2776 | const Elf_Internal_Rela *rel_end; | |
2777 | asection *sgot; | |
2778 | asection *sreloc; | |
2779 | const struct elf_backend_data *bed; | |
2780 | ||
2781 | if (info->relocatable) | |
2782 | return TRUE; | |
2783 | ||
2784 | dynobj = elf_hash_table (info)->dynobj; | |
2785 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2786 | sym_hashes = elf_sym_hashes (abfd); | |
c3b7224a | 2787 | extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info; |
1c0d3aa6 NC |
2788 | |
2789 | name = bfd_get_section_name (abfd, sec); | |
2790 | ||
2791 | if (dynobj == NULL) | |
2792 | { | |
2793 | sgot = NULL; | |
2794 | g = NULL; | |
2795 | } | |
2796 | else | |
2797 | { | |
2798 | sgot = score_elf_got_section (dynobj, FALSE); | |
2799 | if (sgot == NULL) | |
2800 | g = NULL; | |
2801 | else | |
2802 | { | |
2803 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
2804 | g = score_elf_section_data (sgot)->u.got_info; | |
2805 | BFD_ASSERT (g != NULL); | |
2806 | } | |
2807 | } | |
2808 | ||
2809 | sreloc = NULL; | |
2810 | bed = get_elf_backend_data (abfd); | |
2811 | rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel; | |
2812 | for (rel = relocs; rel < rel_end; ++rel) | |
2813 | { | |
2814 | unsigned long r_symndx; | |
2815 | unsigned int r_type; | |
2816 | struct elf_link_hash_entry *h; | |
2817 | ||
2818 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2819 | r_type = ELF32_R_TYPE (rel->r_info); | |
2820 | ||
2821 | if (r_symndx < extsymoff) | |
c3b7224a | 2822 | { |
1c0d3aa6 | 2823 | h = NULL; |
c3b7224a | 2824 | } |
1c0d3aa6 NC |
2825 | else if (r_symndx >= extsymoff + NUM_SHDR_ENTRIES (symtab_hdr)) |
2826 | { | |
2827 | (*_bfd_error_handler) (_("%s: Malformed reloc detected for section %s"), abfd, name); | |
2828 | bfd_set_error (bfd_error_bad_value); | |
2829 | return FALSE; | |
2830 | } | |
2831 | else | |
2832 | { | |
2833 | h = sym_hashes[r_symndx - extsymoff]; | |
2834 | ||
2835 | /* This may be an indirect symbol created because of a version. */ | |
2836 | if (h != NULL) | |
2837 | { | |
2838 | while (h->root.type == bfd_link_hash_indirect) | |
2839 | h = (struct elf_link_hash_entry *)h->root.u.i.link; | |
2840 | } | |
2841 | } | |
2842 | ||
2843 | /* Some relocs require a global offset table. */ | |
2844 | if (dynobj == NULL || sgot == NULL) | |
2845 | { | |
2846 | switch (r_type) | |
2847 | { | |
2848 | case R_SCORE_GOT15: | |
2849 | case R_SCORE_CALL15: | |
2850 | if (dynobj == NULL) | |
2851 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2852 | if (!score_elf_create_got_section (dynobj, info, FALSE)) | |
2853 | return FALSE; | |
2854 | g = score_elf_got_info (dynobj, &sgot); | |
2855 | break; | |
2856 | case R_SCORE_ABS32: | |
2857 | case R_SCORE_REL32: | |
2858 | if (dynobj == NULL && (info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0) | |
2859 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2860 | break; | |
2861 | default: | |
2862 | break; | |
2863 | } | |
2864 | } | |
2865 | ||
2866 | if (!h && (r_type == R_SCORE_GOT_LO16)) | |
2867 | { | |
c3b7224a NC |
2868 | if (! score_elf_record_local_got_symbol (abfd, r_symndx, rel->r_addend, g)) |
2869 | return FALSE; | |
1c0d3aa6 NC |
2870 | } |
2871 | ||
2872 | switch (r_type) | |
2873 | { | |
2874 | case R_SCORE_CALL15: | |
c3b7224a NC |
2875 | if (h == NULL) |
2876 | { | |
2877 | (*_bfd_error_handler) | |
2878 | (_("%B: CALL15 reloc at 0x%lx not against global symbol"), | |
2879 | abfd, (unsigned long) rel->r_offset); | |
2880 | bfd_set_error (bfd_error_bad_value); | |
2881 | return FALSE; | |
2882 | } | |
2883 | else | |
2884 | { | |
2885 | /* This symbol requires a global offset table entry. */ | |
2886 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2887 | return FALSE; | |
2888 | ||
2889 | /* We need a stub, not a plt entry for the undefined function. But we record | |
1c0d3aa6 | 2890 | it as if it needs plt. See _bfd_elf_adjust_dynamic_symbol. */ |
c3b7224a NC |
2891 | h->needs_plt = 1; |
2892 | h->type = STT_FUNC; | |
2893 | } | |
2894 | break; | |
2895 | case R_SCORE_GOT15: | |
2896 | if (h && ! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2897 | return FALSE; | |
1c0d3aa6 | 2898 | break; |
1c0d3aa6 NC |
2899 | case R_SCORE_ABS32: |
2900 | case R_SCORE_REL32: | |
c3b7224a NC |
2901 | if ((info->shared || h != NULL) && (sec->flags & SEC_ALLOC) != 0) |
2902 | { | |
2903 | if (sreloc == NULL) | |
2904 | { | |
2905 | sreloc = score_elf_rel_dyn_section (dynobj, TRUE); | |
2906 | if (sreloc == NULL) | |
2907 | return FALSE; | |
2908 | } | |
1c0d3aa6 | 2909 | #define SCORE_READONLY_SECTION (SEC_ALLOC | SEC_LOAD | SEC_READONLY) |
c3b7224a NC |
2910 | if (info->shared) |
2911 | { | |
2912 | /* When creating a shared object, we must copy these reloc types into | |
1c0d3aa6 NC |
2913 | the output file as R_SCORE_REL32 relocs. We make room for this reloc |
2914 | in the .rel.dyn reloc section. */ | |
c3b7224a NC |
2915 | score_elf_allocate_dynamic_relocations (dynobj, 1); |
2916 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2917 | == SCORE_READONLY_SECTION) | |
2918 | /* We tell the dynamic linker that there are | |
2919 | relocations against the text segment. */ | |
2920 | info->flags |= DF_TEXTREL; | |
2921 | } | |
2922 | else | |
2923 | { | |
2924 | struct score_elf_link_hash_entry *hscore; | |
2925 | ||
2926 | /* We only need to copy this reloc if the symbol is | |
1c0d3aa6 | 2927 | defined in a dynamic object. */ |
c3b7224a NC |
2928 | hscore = (struct score_elf_link_hash_entry *)h; |
2929 | ++hscore->possibly_dynamic_relocs; | |
2930 | if ((sec->flags & SCORE_READONLY_SECTION) | |
2931 | == SCORE_READONLY_SECTION) | |
2932 | /* We need it to tell the dynamic linker if there | |
2933 | are relocations against the text segment. */ | |
2934 | hscore->readonly_reloc = TRUE; | |
2935 | } | |
2936 | ||
2937 | /* Even though we don't directly need a GOT entry for this symbol, | |
2938 | a symbol must have a dynamic symbol table index greater that | |
1c0d3aa6 | 2939 | DT_SCORE_GOTSYM if there are dynamic relocations against it. */ |
c3b7224a NC |
2940 | if (h != NULL) |
2941 | { | |
2942 | if (dynobj == NULL) | |
2943 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2944 | if (! score_elf_create_got_section (dynobj, info, TRUE)) | |
2945 | return FALSE; | |
2946 | g = score_elf_got_info (dynobj, &sgot); | |
2947 | if (! score_elf_record_global_got_symbol (h, abfd, info, g)) | |
2948 | return FALSE; | |
2949 | } | |
2950 | } | |
2951 | break; | |
1c0d3aa6 NC |
2952 | |
2953 | /* This relocation describes the C++ object vtable hierarchy. | |
2954 | Reconstruct it for later use during GC. */ | |
2955 | case R_SCORE_GNU_VTINHERIT: | |
2956 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2957 | return FALSE; | |
2958 | break; | |
2959 | ||
2960 | /* This relocation describes which C++ vtable entries are actually | |
2961 | used. Record for later use during GC. */ | |
2962 | case R_SCORE_GNU_VTENTRY: | |
c3b7224a | 2963 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
1c0d3aa6 NC |
2964 | return FALSE; |
2965 | break; | |
2966 | default: | |
2967 | break; | |
2968 | } | |
2969 | ||
2970 | /* We must not create a stub for a symbol that has relocations | |
2971 | related to taking the function's address. */ | |
2972 | switch (r_type) | |
c3b7224a NC |
2973 | { |
2974 | default: | |
2975 | if (h != NULL) | |
2976 | { | |
2977 | struct score_elf_link_hash_entry *sh; | |
1c0d3aa6 | 2978 | |
c3b7224a NC |
2979 | sh = (struct score_elf_link_hash_entry *) h; |
2980 | sh->no_fn_stub = TRUE; | |
2981 | } | |
2982 | break; | |
2983 | case R_SCORE_CALL15: | |
2984 | break; | |
2985 | } | |
1c0d3aa6 NC |
2986 | } |
2987 | ||
2988 | return TRUE; | |
2989 | } | |
2990 | ||
2991 | static bfd_boolean | |
c3b7224a NC |
2992 | s3_bfd_score_elf_add_symbol_hook (bfd *abfd, |
2993 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2994 | Elf_Internal_Sym *sym, | |
2995 | const char **namep ATTRIBUTE_UNUSED, | |
2996 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2997 | asection **secp, | |
2998 | bfd_vma *valp) | |
1c0d3aa6 NC |
2999 | { |
3000 | switch (sym->st_shndx) | |
3001 | { | |
3002 | case SHN_COMMON: | |
3003 | if (sym->st_size > elf_gp_size (abfd)) | |
3004 | break; | |
3005 | /* Fall through. */ | |
3006 | case SHN_SCORE_SCOMMON: | |
3007 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
3008 | (*secp)->flags |= SEC_IS_COMMON; | |
3009 | *valp = sym->st_size; | |
3010 | break; | |
3011 | } | |
3012 | ||
3013 | return TRUE; | |
3014 | } | |
3015 | ||
3016 | static void | |
c3b7224a | 3017 | s3_bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym) |
1c0d3aa6 NC |
3018 | { |
3019 | elf_symbol_type *elfsym; | |
3020 | ||
3021 | elfsym = (elf_symbol_type *) asym; | |
3022 | switch (elfsym->internal_elf_sym.st_shndx) | |
3023 | { | |
3024 | case SHN_COMMON: | |
3025 | if (asym->value > elf_gp_size (abfd)) | |
3026 | break; | |
3027 | /* Fall through. */ | |
3028 | case SHN_SCORE_SCOMMON: | |
3029 | if (score_elf_scom_section.name == NULL) | |
3030 | { | |
3031 | /* Initialize the small common section. */ | |
3032 | score_elf_scom_section.name = ".scommon"; | |
3033 | score_elf_scom_section.flags = SEC_IS_COMMON; | |
3034 | score_elf_scom_section.output_section = &score_elf_scom_section; | |
3035 | score_elf_scom_section.symbol = &score_elf_scom_symbol; | |
3036 | score_elf_scom_section.symbol_ptr_ptr = &score_elf_scom_symbol_ptr; | |
3037 | score_elf_scom_symbol.name = ".scommon"; | |
3038 | score_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
3039 | score_elf_scom_symbol.section = &score_elf_scom_section; | |
3040 | score_elf_scom_symbol_ptr = &score_elf_scom_symbol; | |
3041 | } | |
3042 | asym->section = &score_elf_scom_section; | |
3043 | asym->value = elfsym->internal_elf_sym.st_size; | |
3044 | break; | |
3045 | } | |
3046 | } | |
3047 | ||
6e0b88f1 | 3048 | static int |
c3b7224a NC |
3049 | s3_bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
3050 | const char *name ATTRIBUTE_UNUSED, | |
3051 | Elf_Internal_Sym *sym, | |
3052 | asection *input_sec, | |
3053 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
1c0d3aa6 NC |
3054 | { |
3055 | /* If we see a common symbol, which implies a relocatable link, then | |
3056 | if a symbol was small common in an input file, mark it as small | |
3057 | common in the output file. */ | |
3058 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
3059 | sym->st_shndx = SHN_SCORE_SCOMMON; | |
3060 | ||
6e0b88f1 | 3061 | return 1; |
1c0d3aa6 NC |
3062 | } |
3063 | ||
3064 | static bfd_boolean | |
c3b7224a NC |
3065 | s3_bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, |
3066 | asection *sec, | |
3067 | int *retval) | |
1c0d3aa6 NC |
3068 | { |
3069 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
3070 | { | |
3071 | *retval = SHN_SCORE_SCOMMON; | |
3072 | return TRUE; | |
3073 | } | |
3074 | ||
3075 | return FALSE; | |
3076 | } | |
3077 | ||
3078 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
3079 | regular object. The current definition is in some section of the | |
3080 | dynamic object, but we're not including those sections. We have to | |
3081 | change the definition to something the rest of the link can understand. */ | |
1c0d3aa6 | 3082 | static bfd_boolean |
c3b7224a NC |
3083 | s3_bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
3084 | struct elf_link_hash_entry *h) | |
1c0d3aa6 NC |
3085 | { |
3086 | bfd *dynobj; | |
3087 | struct score_elf_link_hash_entry *hscore; | |
3088 | asection *s; | |
3089 | ||
3090 | dynobj = elf_hash_table (info)->dynobj; | |
3091 | ||
3092 | /* Make sure we know what is going on here. */ | |
3093 | BFD_ASSERT (dynobj != NULL | |
3094 | && (h->needs_plt | |
3095 | || h->u.weakdef != NULL | |
3096 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
3097 | ||
3098 | /* If this symbol is defined in a dynamic object, we need to copy | |
3099 | any R_SCORE_ABS32 or R_SCORE_REL32 relocs against it into the output | |
3100 | file. */ | |
3101 | hscore = (struct score_elf_link_hash_entry *)h; | |
3102 | if (!info->relocatable | |
3103 | && hscore->possibly_dynamic_relocs != 0 | |
3104 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)) | |
3105 | { | |
3106 | score_elf_allocate_dynamic_relocations (dynobj, hscore->possibly_dynamic_relocs); | |
3107 | if (hscore->readonly_reloc) | |
3108 | /* We tell the dynamic linker that there are relocations | |
3109 | against the text segment. */ | |
3110 | info->flags |= DF_TEXTREL; | |
3111 | } | |
3112 | ||
3113 | /* For a function, create a stub, if allowed. */ | |
3114 | if (!hscore->no_fn_stub && h->needs_plt) | |
3115 | { | |
3116 | if (!elf_hash_table (info)->dynamic_sections_created) | |
3117 | return TRUE; | |
3118 | ||
3119 | /* If this symbol is not defined in a regular file, then set | |
3120 | the symbol to the stub location. This is required to make | |
3121 | function pointers compare as equal between the normal | |
3122 | executable and the shared library. */ | |
3123 | if (!h->def_regular) | |
3124 | { | |
3125 | /* We need .stub section. */ | |
3d4d4302 | 3126 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); |
1c0d3aa6 NC |
3127 | BFD_ASSERT (s != NULL); |
3128 | ||
3129 | h->root.u.def.section = s; | |
3130 | h->root.u.def.value = s->size; | |
3131 | ||
3132 | /* XXX Write this stub address somewhere. */ | |
3133 | h->plt.offset = s->size; | |
3134 | ||
3135 | /* Make room for this stub code. */ | |
3136 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
3137 | ||
3138 | /* The last half word of the stub will be filled with the index | |
3139 | of this symbol in .dynsym section. */ | |
3140 | return TRUE; | |
3141 | } | |
3142 | } | |
3143 | else if ((h->type == STT_FUNC) && !h->needs_plt) | |
3144 | { | |
3145 | /* This will set the entry for this symbol in the GOT to 0, and | |
3146 | the dynamic linker will take care of this. */ | |
3147 | h->root.u.def.value = 0; | |
3148 | return TRUE; | |
3149 | } | |
3150 | ||
3151 | /* If this is a weak symbol, and there is a real definition, the | |
3152 | processor independent code will have arranged for us to see the | |
3153 | real definition first, and we can just use the same value. */ | |
3154 | if (h->u.weakdef != NULL) | |
3155 | { | |
3156 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
3157 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
3158 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
3159 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
3160 | return TRUE; | |
3161 | } | |
3162 | ||
3163 | /* This is a reference to a symbol defined by a dynamic object which | |
3164 | is not a function. */ | |
3165 | return TRUE; | |
3166 | } | |
3167 | ||
3168 | /* This function is called after all the input files have been read, | |
3169 | and the input sections have been assigned to output sections. */ | |
1c0d3aa6 | 3170 | static bfd_boolean |
c3b7224a NC |
3171 | s3_bfd_score_elf_always_size_sections (bfd *output_bfd, |
3172 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3173 | { |
3174 | bfd *dynobj; | |
3175 | asection *s; | |
3176 | struct score_got_info *g; | |
3177 | int i; | |
3178 | bfd_size_type loadable_size = 0; | |
3179 | bfd_size_type local_gotno; | |
3180 | bfd *sub; | |
3181 | ||
3182 | dynobj = elf_hash_table (info)->dynobj; | |
3183 | if (dynobj == NULL) | |
3184 | /* Relocatable links don't have it. */ | |
3185 | return TRUE; | |
3186 | ||
3187 | g = score_elf_got_info (dynobj, &s); | |
3188 | if (s == NULL) | |
3189 | return TRUE; | |
3190 | ||
3191 | /* Calculate the total loadable size of the output. That will give us the | |
3192 | maximum number of GOT_PAGE entries required. */ | |
3193 | for (sub = info->input_bfds; sub; sub = sub->link_next) | |
3194 | { | |
3195 | asection *subsection; | |
3196 | ||
3197 | for (subsection = sub->sections; | |
c3b7224a NC |
3198 | subsection; |
3199 | subsection = subsection->next) | |
3200 | { | |
3201 | if ((subsection->flags & SEC_ALLOC) == 0) | |
3202 | continue; | |
3203 | loadable_size += ((subsection->size + 0xf) | |
3204 | &~ (bfd_size_type) 0xf); | |
3205 | } | |
1c0d3aa6 NC |
3206 | } |
3207 | ||
3208 | /* There has to be a global GOT entry for every symbol with | |
3209 | a dynamic symbol table index of DT_SCORE_GOTSYM or | |
3210 | higher. Therefore, it make sense to put those symbols | |
3211 | that need GOT entries at the end of the symbol table. We | |
3212 | do that here. */ | |
3213 | if (! score_elf_sort_hash_table (info, 1)) | |
3214 | return FALSE; | |
3215 | ||
3216 | if (g->global_gotsym != NULL) | |
3217 | i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx; | |
3218 | else | |
3219 | /* If there are no global symbols, or none requiring | |
3220 | relocations, then GLOBAL_GOTSYM will be NULL. */ | |
3221 | i = 0; | |
3222 | ||
3223 | /* In the worst case, we'll get one stub per dynamic symbol. */ | |
3224 | loadable_size += SCORE_FUNCTION_STUB_SIZE * i; | |
3225 | ||
3226 | /* Assume there are two loadable segments consisting of | |
3227 | contiguous sections. Is 5 enough? */ | |
3228 | local_gotno = (loadable_size >> 16) + 5; | |
3229 | ||
3230 | g->local_gotno += local_gotno; | |
3231 | s->size += g->local_gotno * SCORE_ELF_GOT_SIZE (output_bfd); | |
3232 | ||
3233 | g->global_gotno = i; | |
3234 | s->size += i * SCORE_ELF_GOT_SIZE (output_bfd); | |
3235 | ||
3236 | score_elf_resolve_final_got_entries (g); | |
3237 | ||
3238 | if (s->size > SCORE_ELF_GOT_MAX_SIZE (output_bfd)) | |
3239 | { | |
3240 | /* Fixme. Error message or Warning message should be issued here. */ | |
3241 | } | |
3242 | ||
3243 | return TRUE; | |
3244 | } | |
3245 | ||
3246 | /* Set the sizes of the dynamic sections. */ | |
1c0d3aa6 | 3247 | static bfd_boolean |
c3b7224a | 3248 | s3_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
1c0d3aa6 NC |
3249 | { |
3250 | bfd *dynobj; | |
3251 | asection *s; | |
3252 | bfd_boolean reltext; | |
3253 | ||
3254 | dynobj = elf_hash_table (info)->dynobj; | |
3255 | BFD_ASSERT (dynobj != NULL); | |
3256 | ||
3257 | if (elf_hash_table (info)->dynamic_sections_created) | |
3258 | { | |
3259 | /* Set the contents of the .interp section to the interpreter. */ | |
3260 | if (!info->shared) | |
3261 | { | |
3d4d4302 | 3262 | s = bfd_get_linker_section (dynobj, ".interp"); |
1c0d3aa6 NC |
3263 | BFD_ASSERT (s != NULL); |
3264 | s->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1; | |
3265 | s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER; | |
3266 | } | |
3267 | } | |
3268 | ||
3269 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3270 | determined the sizes of the various dynamic sections. Allocate | |
3271 | memory for them. */ | |
3272 | reltext = FALSE; | |
3273 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3274 | { | |
3275 | const char *name; | |
3276 | ||
3277 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3278 | continue; | |
3279 | ||
3280 | /* It's OK to base decisions on the section name, because none | |
3281 | of the dynobj section names depend upon the input files. */ | |
3282 | name = bfd_get_section_name (dynobj, s); | |
3283 | ||
3284 | if (CONST_STRNEQ (name, ".rel")) | |
3285 | { | |
3286 | if (s->size == 0) | |
3287 | { | |
3288 | /* We only strip the section if the output section name | |
3289 | has the same name. Otherwise, there might be several | |
3290 | input sections for this output section. FIXME: This | |
3291 | code is probably not needed these days anyhow, since | |
3292 | the linker now does not create empty output sections. */ | |
3293 | if (s->output_section != NULL | |
3294 | && strcmp (name, | |
3295 | bfd_get_section_name (s->output_section->owner, | |
3296 | s->output_section)) == 0) | |
3297 | s->flags |= SEC_EXCLUDE; | |
3298 | } | |
3299 | else | |
3300 | { | |
3301 | const char *outname; | |
3302 | asection *target; | |
3303 | ||
3304 | /* If this relocation section applies to a read only | |
3305 | section, then we probably need a DT_TEXTREL entry. | |
3306 | If the relocation section is .rel.dyn, we always | |
3307 | assert a DT_TEXTREL entry rather than testing whether | |
3308 | there exists a relocation to a read only section or | |
3309 | not. */ | |
3310 | outname = bfd_get_section_name (output_bfd, s->output_section); | |
3311 | target = bfd_get_section_by_name (output_bfd, outname + 4); | |
3312 | if ((target != NULL | |
3313 | && (target->flags & SEC_READONLY) != 0 | |
3314 | && (target->flags & SEC_ALLOC) != 0) || strcmp (outname, ".rel.dyn") == 0) | |
3315 | reltext = TRUE; | |
3316 | ||
3317 | /* We use the reloc_count field as a counter if we need | |
3318 | to copy relocs into the output file. */ | |
3319 | if (strcmp (name, ".rel.dyn") != 0) | |
3320 | s->reloc_count = 0; | |
3321 | } | |
3322 | } | |
3323 | else if (CONST_STRNEQ (name, ".got")) | |
3324 | { | |
c3b7224a NC |
3325 | /* s3_bfd_score_elf_always_size_sections() has already done |
3326 | most of the work, but some symbols may have been mapped | |
3327 | to versions that we must now resolve in the got_entries | |
3328 | hash tables. */ | |
1c0d3aa6 NC |
3329 | } |
3330 | else if (strcmp (name, SCORE_ELF_STUB_SECTION_NAME) == 0) | |
3331 | { | |
3332 | /* IRIX rld assumes that the function stub isn't at the end | |
3333 | of .text section. So put a dummy. XXX */ | |
3334 | s->size += SCORE_FUNCTION_STUB_SIZE; | |
3335 | } | |
3336 | else if (! CONST_STRNEQ (name, ".init")) | |
3337 | { | |
3338 | /* It's not one of our sections, so don't allocate space. */ | |
3339 | continue; | |
3340 | } | |
3341 | ||
3342 | /* Allocate memory for the section contents. */ | |
3343 | s->contents = bfd_zalloc (dynobj, s->size); | |
3344 | if (s->contents == NULL && s->size != 0) | |
3345 | { | |
3346 | bfd_set_error (bfd_error_no_memory); | |
3347 | return FALSE; | |
3348 | } | |
3349 | } | |
3350 | ||
3351 | if (elf_hash_table (info)->dynamic_sections_created) | |
3352 | { | |
3353 | /* Add some entries to the .dynamic section. We fill in the | |
c3b7224a NC |
3354 | values later, in s3_bfd_score_elf_finish_dynamic_sections, but we |
3355 | must add the entries now so that we get the correct size for | |
3356 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3357 | dynamic linker and used by the debugger. */ | |
1c0d3aa6 NC |
3358 | |
3359 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0)) | |
c3b7224a | 3360 | return FALSE; |
1c0d3aa6 NC |
3361 | |
3362 | if (reltext) | |
c3b7224a | 3363 | info->flags |= DF_TEXTREL; |
1c0d3aa6 NC |
3364 | |
3365 | if ((info->flags & DF_TEXTREL) != 0) | |
c3b7224a NC |
3366 | { |
3367 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0)) | |
3368 | return FALSE; | |
3369 | } | |
1c0d3aa6 NC |
3370 | |
3371 | if (! SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0)) | |
c3b7224a | 3372 | return FALSE; |
1c0d3aa6 NC |
3373 | |
3374 | if (score_elf_rel_dyn_section (dynobj, FALSE)) | |
c3b7224a NC |
3375 | { |
3376 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0)) | |
3377 | return FALSE; | |
1c0d3aa6 | 3378 | |
c3b7224a NC |
3379 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0)) |
3380 | return FALSE; | |
1c0d3aa6 | 3381 | |
c3b7224a NC |
3382 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0)) |
3383 | return FALSE; | |
3384 | } | |
1c0d3aa6 NC |
3385 | |
3386 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_BASE_ADDRESS, 0)) | |
3387 | return FALSE; | |
3388 | ||
3389 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_LOCAL_GOTNO, 0)) | |
3390 | return FALSE; | |
3391 | ||
3392 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_SYMTABNO, 0)) | |
3393 | return FALSE; | |
3394 | ||
3395 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_UNREFEXTNO, 0)) | |
3396 | return FALSE; | |
3397 | ||
3398 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_GOTSYM, 0)) | |
3399 | return FALSE; | |
3400 | ||
3401 | if (!SCORE_ELF_ADD_DYNAMIC_ENTRY (info, DT_SCORE_HIPAGENO, 0)) | |
c3b7224a | 3402 | return FALSE; |
1c0d3aa6 NC |
3403 | } |
3404 | ||
3405 | return TRUE; | |
3406 | } | |
3407 | ||
3408 | static bfd_boolean | |
c3b7224a | 3409 | s3_bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
1c0d3aa6 NC |
3410 | { |
3411 | struct elf_link_hash_entry *h; | |
3412 | struct bfd_link_hash_entry *bh; | |
3413 | flagword flags; | |
3414 | asection *s; | |
3415 | ||
3416 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3417 | | SEC_LINKER_CREATED | SEC_READONLY); | |
3418 | ||
3419 | /* ABI requests the .dynamic section to be read only. */ | |
3d4d4302 | 3420 | s = bfd_get_linker_section (abfd, ".dynamic"); |
1c0d3aa6 NC |
3421 | if (s != NULL) |
3422 | { | |
3423 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3424 | return FALSE; | |
3425 | } | |
3426 | ||
3427 | /* We need to create .got section. */ | |
3428 | if (!score_elf_create_got_section (abfd, info, FALSE)) | |
3429 | return FALSE; | |
3430 | ||
3431 | if (!score_elf_rel_dyn_section (elf_hash_table (info)->dynobj, TRUE)) | |
3432 | return FALSE; | |
3433 | ||
3434 | /* Create .stub section. */ | |
3d4d4302 | 3435 | if (bfd_get_linker_section (abfd, SCORE_ELF_STUB_SECTION_NAME) == NULL) |
1c0d3aa6 | 3436 | { |
3d4d4302 AM |
3437 | s = bfd_make_section_anyway_with_flags (abfd, SCORE_ELF_STUB_SECTION_NAME, |
3438 | flags | SEC_CODE); | |
1c0d3aa6 | 3439 | if (s == NULL |
1c0d3aa6 NC |
3440 | || !bfd_set_section_alignment (abfd, s, 2)) |
3441 | ||
3442 | return FALSE; | |
3443 | } | |
3444 | ||
3445 | if (!info->shared) | |
3446 | { | |
3447 | const char *name; | |
3448 | ||
3449 | name = "_DYNAMIC_LINK"; | |
3450 | bh = NULL; | |
3451 | if (!(_bfd_generic_link_add_one_symbol | |
3452 | (info, abfd, name, BSF_GLOBAL, bfd_abs_section_ptr, | |
c3b7224a | 3453 | (bfd_vma) 0, NULL, FALSE, get_elf_backend_data (abfd)->collect, &bh))) |
1c0d3aa6 NC |
3454 | return FALSE; |
3455 | ||
3456 | h = (struct elf_link_hash_entry *)bh; | |
3457 | h->non_elf = 0; | |
3458 | h->def_regular = 1; | |
3459 | h->type = STT_SECTION; | |
3460 | ||
3461 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
3462 | return FALSE; | |
3463 | } | |
3464 | ||
3465 | return TRUE; | |
3466 | } | |
3467 | ||
3468 | ||
3469 | /* Finish up dynamic symbol handling. We set the contents of various | |
3470 | dynamic sections here. */ | |
1c0d3aa6 | 3471 | static bfd_boolean |
c3b7224a NC |
3472 | s3_bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd, |
3473 | struct bfd_link_info *info, | |
3474 | struct elf_link_hash_entry *h, | |
3475 | Elf_Internal_Sym *sym) | |
1c0d3aa6 NC |
3476 | { |
3477 | bfd *dynobj; | |
3478 | asection *sgot; | |
3479 | struct score_got_info *g; | |
3480 | const char *name; | |
3481 | ||
3482 | dynobj = elf_hash_table (info)->dynobj; | |
3483 | ||
3484 | if (h->plt.offset != MINUS_ONE) | |
3485 | { | |
3486 | asection *s; | |
3487 | bfd_byte stub[SCORE_FUNCTION_STUB_SIZE]; | |
3488 | ||
3489 | /* This symbol has a stub. Set it up. */ | |
3490 | BFD_ASSERT (h->dynindx != -1); | |
3491 | ||
3d4d4302 | 3492 | s = bfd_get_linker_section (dynobj, SCORE_ELF_STUB_SECTION_NAME); |
1c0d3aa6 NC |
3493 | BFD_ASSERT (s != NULL); |
3494 | ||
3495 | /* FIXME: Can h->dynindex be more than 64K? */ | |
3496 | if (h->dynindx & 0xffff0000) | |
c3b7224a | 3497 | return FALSE; |
1c0d3aa6 NC |
3498 | |
3499 | /* Fill the stub. */ | |
c3b7224a NC |
3500 | score_bfd_put_32 (output_bfd, STUB_LW, stub); |
3501 | score_bfd_put_32 (output_bfd, STUB_MOVE, stub + 4); | |
3502 | score_bfd_put_32 (output_bfd, STUB_LI16 | (h->dynindx << 1), stub + 8); | |
3503 | score_bfd_put_32 (output_bfd, STUB_BRL, stub + 12); | |
1c0d3aa6 NC |
3504 | |
3505 | BFD_ASSERT (h->plt.offset <= s->size); | |
3506 | memcpy (s->contents + h->plt.offset, stub, SCORE_FUNCTION_STUB_SIZE); | |
3507 | ||
3508 | /* Mark the symbol as undefined. plt.offset != -1 occurs | |
c3b7224a | 3509 | only for the referenced symbol. */ |
1c0d3aa6 NC |
3510 | sym->st_shndx = SHN_UNDEF; |
3511 | ||
3512 | /* The run-time linker uses the st_value field of the symbol | |
c3b7224a NC |
3513 | to reset the global offset table entry for this external |
3514 | to its stub address when unlinking a shared object. */ | |
1c0d3aa6 NC |
3515 | sym->st_value = (s->output_section->vma + s->output_offset + h->plt.offset); |
3516 | } | |
3517 | ||
3518 | BFD_ASSERT (h->dynindx != -1 || h->forced_local); | |
3519 | ||
3520 | sgot = score_elf_got_section (dynobj, FALSE); | |
3521 | BFD_ASSERT (sgot != NULL); | |
3522 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3523 | g = score_elf_section_data (sgot)->u.got_info; | |
3524 | BFD_ASSERT (g != NULL); | |
3525 | ||
3526 | /* Run through the global symbol table, creating GOT entries for all | |
3527 | the symbols that need them. */ | |
3528 | if (g->global_gotsym != NULL && h->dynindx >= g->global_gotsym->dynindx) | |
3529 | { | |
3530 | bfd_vma offset; | |
3531 | bfd_vma value; | |
3532 | ||
3533 | value = sym->st_value; | |
3534 | offset = score_elf_global_got_index (dynobj, h); | |
c3b7224a | 3535 | score_bfd_put_32 (output_bfd, value, sgot->contents + offset); |
1c0d3aa6 NC |
3536 | } |
3537 | ||
3538 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3539 | name = h->root.root.string; | |
9637f6ef L |
3540 | if (h == elf_hash_table (info)->hdynamic |
3541 | || h == elf_hash_table (info)->hgot) | |
1c0d3aa6 NC |
3542 | sym->st_shndx = SHN_ABS; |
3543 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) | |
3544 | { | |
3545 | sym->st_shndx = SHN_ABS; | |
3546 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3547 | sym->st_value = 1; | |
3548 | } | |
3549 | else if (strcmp (name, GP_DISP_LABEL) == 0) | |
3550 | { | |
3551 | sym->st_shndx = SHN_ABS; | |
3552 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
3553 | sym->st_value = elf_gp (output_bfd); | |
3554 | } | |
3555 | ||
3556 | return TRUE; | |
3557 | } | |
3558 | ||
3559 | /* Finish up the dynamic sections. */ | |
1c0d3aa6 | 3560 | static bfd_boolean |
c3b7224a NC |
3561 | s3_bfd_score_elf_finish_dynamic_sections (bfd *output_bfd, |
3562 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3563 | { |
3564 | bfd *dynobj; | |
3565 | asection *sdyn; | |
3566 | asection *sgot; | |
3567 | asection *s; | |
3568 | struct score_got_info *g; | |
3569 | ||
3570 | dynobj = elf_hash_table (info)->dynobj; | |
3571 | ||
3d4d4302 | 3572 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
1c0d3aa6 NC |
3573 | |
3574 | sgot = score_elf_got_section (dynobj, FALSE); | |
3575 | if (sgot == NULL) | |
3576 | g = NULL; | |
3577 | else | |
3578 | { | |
3579 | BFD_ASSERT (score_elf_section_data (sgot) != NULL); | |
3580 | g = score_elf_section_data (sgot)->u.got_info; | |
3581 | BFD_ASSERT (g != NULL); | |
3582 | } | |
3583 | ||
3584 | if (elf_hash_table (info)->dynamic_sections_created) | |
3585 | { | |
3586 | bfd_byte *b; | |
3587 | ||
3588 | BFD_ASSERT (sdyn != NULL); | |
3589 | BFD_ASSERT (g != NULL); | |
3590 | ||
3591 | for (b = sdyn->contents; | |
c3b7224a NC |
3592 | b < sdyn->contents + sdyn->size; |
3593 | b += SCORE_ELF_DYN_SIZE (dynobj)) | |
3594 | { | |
3595 | Elf_Internal_Dyn dyn; | |
3596 | const char *name; | |
3597 | size_t elemsize; | |
3598 | bfd_boolean swap_out_p; | |
3599 | ||
3600 | /* Read in the current dynamic entry. */ | |
3601 | (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn); | |
3602 | ||
3603 | /* Assume that we're going to modify it and write it out. */ | |
3604 | swap_out_p = TRUE; | |
3605 | ||
3606 | switch (dyn.d_tag) | |
3607 | { | |
3608 | case DT_RELENT: | |
3609 | s = score_elf_rel_dyn_section (dynobj, FALSE); | |
3610 | BFD_ASSERT (s != NULL); | |
3611 | dyn.d_un.d_val = SCORE_ELF_REL_SIZE (dynobj); | |
3612 | break; | |
3613 | ||
3614 | case DT_STRSZ: | |
3615 | /* Rewrite DT_STRSZ. */ | |
3616 | dyn.d_un.d_val = _bfd_elf_strtab_size (elf_hash_table (info)->dynstr); | |
3617 | break; | |
3618 | ||
3619 | case DT_PLTGOT: | |
3620 | name = ".got"; | |
3621 | s = bfd_get_section_by_name (output_bfd, name); | |
3622 | BFD_ASSERT (s != NULL); | |
3623 | dyn.d_un.d_ptr = s->vma; | |
3624 | break; | |
3625 | ||
3626 | case DT_SCORE_BASE_ADDRESS: | |
3627 | s = output_bfd->sections; | |
3628 | BFD_ASSERT (s != NULL); | |
3629 | dyn.d_un.d_ptr = s->vma & ~(bfd_vma) 0xffff; | |
3630 | break; | |
3631 | ||
3632 | case DT_SCORE_LOCAL_GOTNO: | |
3633 | dyn.d_un.d_val = g->local_gotno; | |
3634 | break; | |
3635 | ||
3636 | case DT_SCORE_UNREFEXTNO: | |
3637 | /* The index into the dynamic symbol table which is the | |
3638 | entry of the first external symbol that is not | |
3639 | referenced within the same object. */ | |
3640 | dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1; | |
3641 | break; | |
3642 | ||
3643 | case DT_SCORE_GOTSYM: | |
3644 | if (g->global_gotsym) | |
3645 | { | |
3646 | dyn.d_un.d_val = g->global_gotsym->dynindx; | |
3647 | break; | |
3648 | } | |
3649 | /* In case if we don't have global got symbols we default | |
3650 | to setting DT_SCORE_GOTSYM to the same value as | |
3651 | DT_SCORE_SYMTABNO, so we just fall through. */ | |
3652 | ||
3653 | case DT_SCORE_SYMTABNO: | |
3654 | name = ".dynsym"; | |
3655 | elemsize = SCORE_ELF_SYM_SIZE (output_bfd); | |
3656 | s = bfd_get_section_by_name (output_bfd, name); | |
3657 | BFD_ASSERT (s != NULL); | |
3658 | ||
3659 | dyn.d_un.d_val = s->size / elemsize; | |
3660 | break; | |
3661 | ||
3662 | case DT_SCORE_HIPAGENO: | |
3663 | dyn.d_un.d_val = g->local_gotno - SCORE_RESERVED_GOTNO; | |
3664 | break; | |
3665 | ||
3666 | default: | |
3667 | swap_out_p = FALSE; | |
3668 | break; | |
3669 | } | |
3670 | ||
3671 | if (swap_out_p) | |
3672 | (*get_elf_backend_data (dynobj)->s->swap_dyn_out) (dynobj, &dyn, b); | |
3673 | } | |
1c0d3aa6 NC |
3674 | } |
3675 | ||
3676 | /* The first entry of the global offset table will be filled at | |
3677 | runtime. The second entry will be used by some runtime loaders. | |
3678 | This isn't the case of IRIX rld. */ | |
3679 | if (sgot != NULL && sgot->size > 0) | |
3680 | { | |
c3b7224a NC |
3681 | score_bfd_put_32 (output_bfd, 0, sgot->contents); |
3682 | score_bfd_put_32 (output_bfd, 0x80000000, sgot->contents + SCORE_ELF_GOT_SIZE (output_bfd)); | |
1c0d3aa6 NC |
3683 | } |
3684 | ||
3685 | if (sgot != NULL) | |
3686 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize | |
3687 | = SCORE_ELF_GOT_SIZE (output_bfd); | |
3688 | ||
3689 | ||
3690 | /* We need to sort the entries of the dynamic relocation section. */ | |
3691 | s = score_elf_rel_dyn_section (dynobj, FALSE); | |
3692 | ||
3693 | if (s != NULL && s->size > (bfd_vma)2 * SCORE_ELF_REL_SIZE (output_bfd)) | |
3694 | { | |
3695 | reldyn_sorting_bfd = output_bfd; | |
3696 | qsort ((Elf32_External_Rel *) s->contents + 1, s->reloc_count - 1, | |
c3b7224a | 3697 | sizeof (Elf32_External_Rel), score_elf_sort_dynamic_relocs); |
1c0d3aa6 NC |
3698 | } |
3699 | ||
3700 | return TRUE; | |
3701 | } | |
3702 | ||
3703 | /* This function set up the ELF section header for a BFD section in preparation for writing | |
3704 | it out. This is where the flags and type fields are set for unusual sections. */ | |
1c0d3aa6 | 3705 | static bfd_boolean |
c3b7224a NC |
3706 | s3_bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
3707 | Elf_Internal_Shdr *hdr, | |
3708 | asection *sec) | |
1c0d3aa6 NC |
3709 | { |
3710 | const char *name; | |
3711 | ||
3712 | name = bfd_get_section_name (abfd, sec); | |
3713 | ||
3714 | if (strcmp (name, ".got") == 0 | |
3715 | || strcmp (name, ".srdata") == 0 | |
3716 | || strcmp (name, ".sdata") == 0 | |
3717 | || strcmp (name, ".sbss") == 0) | |
3718 | hdr->sh_flags |= SHF_SCORE_GPREL; | |
3719 | ||
3720 | return TRUE; | |
3721 | } | |
3722 | ||
3723 | /* This function do additional processing on the ELF section header before writing | |
3724 | it out. This is used to set the flags and type fields for some sections. */ | |
3725 | ||
3726 | /* assign_file_positions_except_relocs() check section flag and if it is allocatable, | |
3727 | warning message will be issued. backend_fake_section is called before | |
3728 | assign_file_positions_except_relocs(); backend_section_processing after it. so, we | |
3729 | modify section flag there, but not backend_fake_section. */ | |
1c0d3aa6 | 3730 | static bfd_boolean |
c3b7224a | 3731 | s3_bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr) |
1c0d3aa6 NC |
3732 | { |
3733 | if (hdr->bfd_section != NULL) | |
3734 | { | |
3735 | const char *name = bfd_get_section_name (abfd, hdr->bfd_section); | |
3736 | ||
3737 | if (strcmp (name, ".sdata") == 0) | |
c3b7224a NC |
3738 | { |
3739 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3740 | hdr->sh_type = SHT_PROGBITS; | |
3741 | } | |
1c0d3aa6 | 3742 | else if (strcmp (name, ".sbss") == 0) |
c3b7224a NC |
3743 | { |
3744 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_SCORE_GPREL; | |
3745 | hdr->sh_type = SHT_NOBITS; | |
3746 | } | |
1c0d3aa6 | 3747 | else if (strcmp (name, ".srdata") == 0) |
c3b7224a NC |
3748 | { |
3749 | hdr->sh_flags |= SHF_ALLOC | SHF_SCORE_GPREL; | |
3750 | hdr->sh_type = SHT_PROGBITS; | |
3751 | } | |
1c0d3aa6 NC |
3752 | } |
3753 | ||
3754 | return TRUE; | |
3755 | } | |
3756 | ||
3757 | static bfd_boolean | |
c3b7224a | 3758 | s3_bfd_score_elf_write_section (bfd *output_bfd, asection *sec, bfd_byte *contents) |
1c0d3aa6 NC |
3759 | { |
3760 | bfd_byte *to, *from, *end; | |
3761 | int i; | |
3762 | ||
3763 | if (strcmp (sec->name, ".pdr") != 0) | |
3764 | return FALSE; | |
3765 | ||
3766 | if (score_elf_section_data (sec)->u.tdata == NULL) | |
3767 | return FALSE; | |
3768 | ||
3769 | to = contents; | |
3770 | end = contents + sec->size; | |
3771 | for (from = contents, i = 0; from < end; from += PDR_SIZE, i++) | |
3772 | { | |
3773 | if ((score_elf_section_data (sec)->u.tdata)[i] == 1) | |
3774 | continue; | |
3775 | ||
3776 | if (to != from) | |
3777 | memcpy (to, from, PDR_SIZE); | |
3778 | ||
3779 | to += PDR_SIZE; | |
3780 | } | |
3781 | bfd_set_section_contents (output_bfd, sec->output_section, contents, | |
3782 | (file_ptr) sec->output_offset, sec->size); | |
3783 | ||
3784 | return TRUE; | |
3785 | } | |
3786 | ||
3787 | /* Copy data from a SCORE ELF indirect symbol to its direct symbol, hiding the old | |
3788 | indirect symbol. Process additional relocation information. */ | |
1c0d3aa6 | 3789 | static void |
c3b7224a NC |
3790 | s3_bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info, |
3791 | struct elf_link_hash_entry *dir, | |
3792 | struct elf_link_hash_entry *ind) | |
1c0d3aa6 NC |
3793 | { |
3794 | struct score_elf_link_hash_entry *dirscore, *indscore; | |
3795 | ||
3796 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
3797 | ||
3798 | if (ind->root.type != bfd_link_hash_indirect) | |
3799 | return; | |
3800 | ||
3801 | dirscore = (struct score_elf_link_hash_entry *) dir; | |
3802 | indscore = (struct score_elf_link_hash_entry *) ind; | |
3803 | dirscore->possibly_dynamic_relocs += indscore->possibly_dynamic_relocs; | |
3804 | ||
3805 | if (indscore->readonly_reloc) | |
3806 | dirscore->readonly_reloc = TRUE; | |
3807 | ||
3808 | if (indscore->no_fn_stub) | |
3809 | dirscore->no_fn_stub = TRUE; | |
3810 | } | |
3811 | ||
3812 | /* Remove information about discarded functions from other sections which mention them. */ | |
1c0d3aa6 | 3813 | static bfd_boolean |
c3b7224a NC |
3814 | s3_bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie, |
3815 | struct bfd_link_info *info) | |
1c0d3aa6 NC |
3816 | { |
3817 | asection *o; | |
3818 | bfd_boolean ret = FALSE; | |
3819 | unsigned char *tdata; | |
3820 | size_t i, skip; | |
3821 | ||
3822 | o = bfd_get_section_by_name (abfd, ".pdr"); | |
3823 | if ((!o) || (o->size == 0) || (o->size % PDR_SIZE != 0) | |
3824 | || (o->output_section != NULL && bfd_is_abs_section (o->output_section))) | |
3825 | return FALSE; | |
3826 | ||
3827 | tdata = bfd_zmalloc (o->size / PDR_SIZE); | |
3828 | if (!tdata) | |
3829 | return FALSE; | |
3830 | ||
3831 | cookie->rels = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, info->keep_memory); | |
3832 | if (!cookie->rels) | |
3833 | { | |
3834 | free (tdata); | |
3835 | return FALSE; | |
3836 | } | |
3837 | ||
3838 | cookie->rel = cookie->rels; | |
3839 | cookie->relend = cookie->rels + o->reloc_count; | |
3840 | ||
3841 | for (i = 0, skip = 0; i < o->size; i++) | |
3842 | { | |
3843 | if (bfd_elf_reloc_symbol_deleted_p (i * PDR_SIZE, cookie)) | |
3844 | { | |
3845 | tdata[i] = 1; | |
3846 | skip++; | |
3847 | } | |
3848 | } | |
3849 | ||
3850 | if (skip != 0) | |
3851 | { | |
3852 | score_elf_section_data (o)->u.tdata = tdata; | |
3853 | o->size -= skip * PDR_SIZE; | |
3854 | ret = TRUE; | |
3855 | } | |
3856 | else | |
3857 | free (tdata); | |
3858 | ||
3859 | if (!info->keep_memory) | |
3860 | free (cookie->rels); | |
3861 | ||
3862 | return ret; | |
3863 | } | |
3864 | ||
3865 | /* Signal that discard_info() has removed the discarded relocations for this section. */ | |
1c0d3aa6 | 3866 | static bfd_boolean |
c3b7224a | 3867 | s3_bfd_score_elf_ignore_discarded_relocs (asection *sec) |
1c0d3aa6 NC |
3868 | { |
3869 | if (strcmp (sec->name, ".pdr") == 0) | |
3870 | return TRUE; | |
3871 | return FALSE; | |
3872 | } | |
3873 | ||
07adf181 AM |
3874 | /* Return the section that should be marked against GC for a given |
3875 | relocation. */ | |
1c0d3aa6 | 3876 | static asection * |
c3b7224a NC |
3877 | s3_bfd_score_elf_gc_mark_hook (asection *sec, |
3878 | struct bfd_link_info *info, | |
3879 | Elf_Internal_Rela *rel, | |
3880 | struct elf_link_hash_entry *h, | |
3881 | Elf_Internal_Sym *sym) | |
1c0d3aa6 NC |
3882 | { |
3883 | if (h != NULL) | |
07adf181 AM |
3884 | switch (ELF32_R_TYPE (rel->r_info)) |
3885 | { | |
3886 | case R_SCORE_GNU_VTINHERIT: | |
3887 | case R_SCORE_GNU_VTENTRY: | |
c3b7224a | 3888 | return NULL; |
07adf181 | 3889 | } |
1c0d3aa6 | 3890 | |
07adf181 | 3891 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
1c0d3aa6 NC |
3892 | } |
3893 | ||
3894 | /* Support for core dump NOTE sections. */ | |
3895 | ||
3896 | static bfd_boolean | |
c3b7224a | 3897 | s3_bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
1c0d3aa6 NC |
3898 | { |
3899 | int offset; | |
3900 | unsigned int raw_size; | |
3901 | ||
3902 | switch (note->descsz) | |
3903 | { | |
3904 | default: | |
3905 | return FALSE; | |
3906 | ||
3907 | case 148: /* Linux/Score 32-bit. */ | |
3908 | /* pr_cursig */ | |
228e534f AM |
3909 | elf_tdata (abfd)->core->signal |
3910 | = score_bfd_get_16 (abfd, note->descdata + 12); | |
1c0d3aa6 NC |
3911 | |
3912 | /* pr_pid */ | |
228e534f AM |
3913 | elf_tdata (abfd)->core->lwpid |
3914 | = score_bfd_get_32 (abfd, note->descdata + 24); | |
1c0d3aa6 NC |
3915 | |
3916 | /* pr_reg */ | |
3917 | offset = 72; | |
3918 | raw_size = 72; | |
3919 | ||
3920 | break; | |
3921 | } | |
3922 | ||
3923 | /* Make a ".reg/999" section. */ | |
228e534f AM |
3924 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size, |
3925 | note->descpos + offset); | |
1c0d3aa6 NC |
3926 | } |
3927 | ||
3928 | static bfd_boolean | |
c3b7224a | 3929 | s3_bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
1c0d3aa6 NC |
3930 | { |
3931 | switch (note->descsz) | |
3932 | { | |
3933 | default: | |
3934 | return FALSE; | |
3935 | ||
3936 | case 124: /* Linux/Score elf_prpsinfo. */ | |
228e534f AM |
3937 | elf_tdata (abfd)->core->program |
3938 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
3939 | elf_tdata (abfd)->core->command | |
3940 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1c0d3aa6 NC |
3941 | } |
3942 | ||
3943 | /* Note that for some reason, a spurious space is tacked | |
3944 | onto the end of the args in some (at least one anyway) | |
3945 | implementations, so strip it off if it exists. */ | |
3946 | ||
3947 | { | |
228e534f | 3948 | char *command = elf_tdata (abfd)->core->command; |
1c0d3aa6 NC |
3949 | int n = strlen (command); |
3950 | ||
3951 | if (0 < n && command[n - 1] == ' ') | |
3952 | command[n - 1] = '\0'; | |
3953 | } | |
3954 | ||
3955 | return TRUE; | |
3956 | } | |
3957 | ||
3958 | ||
3959 | /* Score BFD functions. */ | |
1c0d3aa6 | 3960 | static reloc_howto_type * |
c3b7224a | 3961 | s3_elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) |
1c0d3aa6 NC |
3962 | { |
3963 | unsigned int i; | |
3964 | ||
c3b7224a | 3965 | for (i = 0; i < ARRAY_SIZE (elf32_score_reloc_map); i++) |
1c0d3aa6 NC |
3966 | if (elf32_score_reloc_map[i].bfd_reloc_val == code) |
3967 | return &elf32_score_howto_table[elf32_score_reloc_map[i].elf_reloc_val]; | |
3968 | ||
3969 | return NULL; | |
3970 | } | |
3971 | ||
157090f7 AM |
3972 | static reloc_howto_type * |
3973 | elf32_score_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
c3b7224a | 3974 | const char *r_name) |
157090f7 AM |
3975 | { |
3976 | unsigned int i; | |
3977 | ||
3978 | for (i = 0; | |
3979 | i < (sizeof (elf32_score_howto_table) | |
c3b7224a | 3980 | / sizeof (elf32_score_howto_table[0])); |
157090f7 AM |
3981 | i++) |
3982 | if (elf32_score_howto_table[i].name != NULL | |
c3b7224a | 3983 | && strcasecmp (elf32_score_howto_table[i].name, r_name) == 0) |
157090f7 AM |
3984 | return &elf32_score_howto_table[i]; |
3985 | ||
3986 | return NULL; | |
3987 | } | |
3988 | ||
1c0d3aa6 | 3989 | static bfd_boolean |
c3b7224a | 3990 | s3_elf32_score_print_private_bfd_data (bfd *abfd, void * ptr) |
1c0d3aa6 NC |
3991 | { |
3992 | FILE *file = (FILE *) ptr; | |
3993 | ||
3994 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
3995 | ||
3996 | /* Print normal ELF private data. */ | |
3997 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
3998 | ||
3999 | /* xgettext:c-format */ | |
4000 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
4001 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_PIC) | |
4002 | { | |
4003 | fprintf (file, _(" [pic]")); | |
4004 | } | |
4005 | if (elf_elfheader (abfd)->e_flags & EF_SCORE_FIXDEP) | |
4006 | { | |
4007 | fprintf (file, _(" [fix dep]")); | |
4008 | } | |
4009 | fputc ('\n', file); | |
4010 | ||
4011 | return TRUE; | |
4012 | } | |
4013 | ||
4014 | static bfd_boolean | |
c3b7224a | 4015 | s3_elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
1c0d3aa6 NC |
4016 | { |
4017 | flagword in_flags; | |
4018 | flagword out_flags; | |
4019 | ||
4020 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
4021 | return FALSE; | |
4022 | ||
4023 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4024 | out_flags = elf_elfheader (obfd)->e_flags; | |
4025 | ||
4026 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4027 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
4028 | return TRUE; | |
4029 | ||
4030 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4031 | out_flags = elf_elfheader (obfd)->e_flags; | |
4032 | ||
4033 | if (! elf_flags_init (obfd)) | |
4034 | { | |
4035 | elf_flags_init (obfd) = TRUE; | |
4036 | elf_elfheader (obfd)->e_flags = in_flags; | |
4037 | ||
4038 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
c3b7224a NC |
4039 | && bfd_get_arch_info (obfd)->the_default) |
4040 | { | |
4041 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
4042 | } | |
1c0d3aa6 NC |
4043 | |
4044 | return TRUE; | |
4045 | } | |
4046 | ||
4047 | if (((in_flags & EF_SCORE_PIC) != 0) != ((out_flags & EF_SCORE_PIC) != 0)) | |
4048 | { | |
4049 | (*_bfd_error_handler) (_("%B: warning: linking PIC files with non-PIC files"), ibfd); | |
4050 | } | |
4051 | ||
4052 | /* FIXME: Maybe dependency fix compatibility should be checked here. */ | |
4053 | ||
4054 | return TRUE; | |
4055 | } | |
4056 | ||
4057 | static bfd_boolean | |
c3b7224a | 4058 | s3_elf32_score_new_section_hook (bfd *abfd, asection *sec) |
1c0d3aa6 NC |
4059 | { |
4060 | struct _score_elf_section_data *sdata; | |
4061 | bfd_size_type amt = sizeof (*sdata); | |
4062 | ||
4063 | sdata = bfd_zalloc (abfd, amt); | |
4064 | if (sdata == NULL) | |
4065 | return FALSE; | |
4066 | sec->used_by_bfd = sdata; | |
4067 | ||
4068 | return _bfd_elf_new_section_hook (abfd, sec); | |
4069 | } | |
4070 | ||
c3b7224a NC |
4071 | /*****************************************************************************/ |
4072 | ||
4073 | /* s3_s7: backend hooks. */ | |
4074 | static void | |
4075 | _bfd_score_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
4076 | arelent *bfd_reloc, | |
4077 | Elf_Internal_Rela *elf_reloc) | |
4078 | { | |
4079 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4080 | return s3_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc); | |
4081 | else | |
4082 | return s7_bfd_score_info_to_howto (abfd, bfd_reloc, elf_reloc); | |
4083 | } | |
4084 | ||
4085 | static bfd_boolean | |
4086 | _bfd_score_elf_relocate_section (bfd *output_bfd, | |
4087 | struct bfd_link_info *info, | |
4088 | bfd *input_bfd, | |
4089 | asection *input_section, | |
4090 | bfd_byte *contents, | |
4091 | Elf_Internal_Rela *relocs, | |
4092 | Elf_Internal_Sym *local_syms, | |
4093 | asection **local_sections) | |
4094 | { | |
4095 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4096 | return s3_bfd_score_elf_relocate_section (output_bfd, | |
4097 | info, input_bfd, input_section, contents, relocs, | |
4098 | local_syms, local_sections); | |
4099 | else | |
4100 | return s7_bfd_score_elf_relocate_section (output_bfd, | |
4101 | info, input_bfd, input_section, contents, relocs, | |
4102 | local_syms, local_sections); | |
4103 | } | |
4104 | ||
4105 | static bfd_boolean | |
4106 | _bfd_score_elf_check_relocs (bfd *abfd, | |
4107 | struct bfd_link_info *info, | |
4108 | asection *sec, | |
4109 | const Elf_Internal_Rela *relocs) | |
4110 | { | |
4111 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4112 | return s3_bfd_score_elf_check_relocs (abfd, info, sec, relocs); | |
4113 | else | |
4114 | return s7_bfd_score_elf_check_relocs (abfd, info, sec, relocs); | |
4115 | } | |
4116 | ||
4117 | static bfd_boolean | |
4118 | _bfd_score_elf_add_symbol_hook (bfd *abfd, | |
4119 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4120 | Elf_Internal_Sym *sym, | |
4121 | const char **namep ATTRIBUTE_UNUSED, | |
4122 | flagword *flagsp ATTRIBUTE_UNUSED, | |
4123 | asection **secp, | |
4124 | bfd_vma *valp) | |
4125 | { | |
4126 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4127 | return s3_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, | |
4128 | secp, valp); | |
4129 | else | |
4130 | return s7_bfd_score_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, | |
4131 | secp, valp); | |
4132 | } | |
4133 | ||
4134 | static void | |
4135 | _bfd_score_elf_symbol_processing (bfd *abfd, asymbol *asym) | |
4136 | { | |
4137 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4138 | return s3_bfd_score_elf_symbol_processing (abfd, asym); | |
4139 | else | |
4140 | return s7_bfd_score_elf_symbol_processing (abfd, asym); | |
4141 | } | |
4142 | ||
6e0b88f1 | 4143 | static int |
c3b7224a NC |
4144 | _bfd_score_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4145 | const char *name ATTRIBUTE_UNUSED, | |
4146 | Elf_Internal_Sym *sym, | |
4147 | asection *input_sec, | |
4148 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4149 | { | |
4150 | /* If link a empty .o, then this filed is NULL. */ | |
4151 | if (info->input_bfds == NULL) | |
4152 | { | |
4153 | /* If we see a common symbol, which implies a relocatable link, then | |
4154 | if a symbol was small common in an input file, mark it as small | |
4155 | common in the output file. */ | |
4156 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
4157 | sym->st_shndx = SHN_SCORE_SCOMMON; | |
6e0b88f1 | 4158 | return 1; |
c3b7224a NC |
4159 | } |
4160 | ||
4161 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4162 | return s3_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h); | |
4163 | else | |
4164 | return s7_bfd_score_elf_link_output_symbol_hook (info, name, sym, input_sec, h); | |
4165 | } | |
4166 | ||
4167 | static bfd_boolean | |
4168 | _bfd_score_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, | |
4169 | asection *sec, | |
4170 | int *retval) | |
4171 | { | |
4172 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4173 | return s3_bfd_score_elf_section_from_bfd_section (abfd, sec, retval); | |
4174 | else | |
4175 | return s7_bfd_score_elf_section_from_bfd_section (abfd, sec, retval); | |
4176 | } | |
4177 | ||
4178 | static bfd_boolean | |
4179 | _bfd_score_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
4180 | struct elf_link_hash_entry *h) | |
4181 | { | |
4182 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4183 | return s3_bfd_score_elf_adjust_dynamic_symbol (info, h); | |
4184 | else | |
4185 | return s7_bfd_score_elf_adjust_dynamic_symbol (info, h); | |
4186 | } | |
4187 | ||
4188 | static bfd_boolean | |
4189 | _bfd_score_elf_always_size_sections (bfd *output_bfd, | |
4190 | struct bfd_link_info *info) | |
4191 | { | |
4192 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4193 | return s3_bfd_score_elf_always_size_sections (output_bfd, info); | |
4194 | else | |
4195 | return s7_bfd_score_elf_always_size_sections (output_bfd, info); | |
4196 | } | |
4197 | ||
4198 | static bfd_boolean | |
4199 | _bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
4200 | { | |
4201 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4202 | return s3_bfd_score_elf_size_dynamic_sections (output_bfd, info); | |
4203 | else | |
4204 | return s7_bfd_score_elf_size_dynamic_sections (output_bfd, info); | |
4205 | } | |
4206 | ||
4207 | static bfd_boolean | |
4208 | _bfd_score_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
4209 | { | |
4210 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4211 | return s3_bfd_score_elf_create_dynamic_sections (abfd, info); | |
4212 | else | |
4213 | return s7_bfd_score_elf_create_dynamic_sections (abfd, info); | |
4214 | } | |
4215 | ||
4216 | static bfd_boolean | |
4217 | _bfd_score_elf_finish_dynamic_symbol (bfd *output_bfd, | |
4218 | struct bfd_link_info *info, | |
4219 | struct elf_link_hash_entry *h, | |
4220 | Elf_Internal_Sym *sym) | |
4221 | { | |
4222 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4223 | return s3_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym); | |
4224 | else | |
4225 | return s7_bfd_score_elf_finish_dynamic_symbol (output_bfd, info, h, sym); | |
4226 | } | |
4227 | ||
4228 | static bfd_boolean | |
4229 | _bfd_score_elf_finish_dynamic_sections (bfd *output_bfd, | |
4230 | struct bfd_link_info *info) | |
4231 | { | |
4232 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4233 | return s3_bfd_score_elf_finish_dynamic_sections (output_bfd, info); | |
4234 | else | |
4235 | return s7_bfd_score_elf_finish_dynamic_sections (output_bfd, info); | |
4236 | } | |
4237 | ||
4238 | static bfd_boolean | |
4239 | _bfd_score_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
4240 | Elf_Internal_Shdr *hdr, | |
4241 | asection *sec) | |
4242 | { | |
4243 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4244 | return s3_bfd_score_elf_fake_sections (abfd, hdr, sec); | |
4245 | else | |
4246 | return s7_bfd_score_elf_fake_sections (abfd, hdr, sec); | |
4247 | } | |
4248 | ||
4249 | static bfd_boolean | |
4250 | _bfd_score_elf_section_processing (bfd *abfd ATTRIBUTE_UNUSED, Elf_Internal_Shdr *hdr) | |
4251 | { | |
4252 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4253 | return s3_bfd_score_elf_section_processing (abfd, hdr); | |
4254 | else | |
4255 | return s7_bfd_score_elf_section_processing (abfd, hdr); | |
4256 | } | |
4257 | ||
4258 | static bfd_boolean | |
4259 | _bfd_score_elf_write_section (bfd *output_bfd, | |
4260 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, | |
4261 | asection *sec, bfd_byte *contents) | |
4262 | { | |
4263 | if (bfd_get_mach (output_bfd) == bfd_mach_score3) | |
4264 | return s3_bfd_score_elf_write_section (output_bfd, sec, contents); | |
4265 | else | |
4266 | return s7_bfd_score_elf_write_section (output_bfd, sec, contents); | |
4267 | } | |
4268 | ||
4269 | static void | |
4270 | _bfd_score_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
4271 | struct elf_link_hash_entry *dir, | |
4272 | struct elf_link_hash_entry *ind) | |
4273 | { | |
4274 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4275 | return s3_bfd_score_elf_copy_indirect_symbol (info, dir, ind); | |
4276 | else | |
4277 | return s7_bfd_score_elf_copy_indirect_symbol (info, dir, ind); | |
4278 | } | |
4279 | ||
4280 | static void | |
4281 | _bfd_score_elf_hide_symbol (struct bfd_link_info *info, | |
4282 | struct elf_link_hash_entry *entry, | |
4283 | bfd_boolean force_local) | |
4284 | { | |
4285 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4286 | return s3_bfd_score_elf_hide_symbol (info, entry, force_local); | |
4287 | else | |
4288 | return s7_bfd_score_elf_hide_symbol (info, entry, force_local); | |
4289 | } | |
4290 | ||
4291 | static bfd_boolean | |
4292 | _bfd_score_elf_discard_info (bfd *abfd, struct elf_reloc_cookie *cookie, | |
4293 | struct bfd_link_info *info) | |
4294 | { | |
4295 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4296 | return s3_bfd_score_elf_discard_info (abfd, cookie, info); | |
4297 | else | |
4298 | return s7_bfd_score_elf_discard_info (abfd, cookie, info); | |
4299 | } | |
4300 | ||
4301 | static bfd_boolean | |
4302 | _bfd_score_elf_ignore_discarded_relocs (asection *sec) | |
4303 | { | |
4304 | if (bfd_get_mach (sec->owner) == bfd_mach_score3) | |
4305 | return s3_bfd_score_elf_ignore_discarded_relocs (sec); | |
4306 | else | |
4307 | return s7_bfd_score_elf_ignore_discarded_relocs (sec); | |
4308 | } | |
4309 | ||
4310 | static asection * | |
4311 | _bfd_score_elf_gc_mark_hook (asection *sec, | |
4312 | struct bfd_link_info *info, | |
4313 | Elf_Internal_Rela *rel, | |
4314 | struct elf_link_hash_entry *h, | |
4315 | Elf_Internal_Sym *sym) | |
4316 | { | |
4317 | if (bfd_get_mach (info->input_bfds) == bfd_mach_score3) | |
4318 | return s3_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym); | |
4319 | else | |
4320 | return s7_bfd_score_elf_gc_mark_hook (sec, info, rel, h, sym); | |
4321 | } | |
4322 | ||
4323 | static bfd_boolean | |
4324 | _bfd_score_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
4325 | { | |
4326 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4327 | return s3_bfd_score_elf_grok_prstatus (abfd, note); | |
4328 | else | |
4329 | return s7_bfd_score_elf_grok_prstatus (abfd, note); | |
4330 | } | |
4331 | ||
4332 | static bfd_boolean | |
4333 | _bfd_score_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
4334 | { | |
4335 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4336 | return s3_bfd_score_elf_grok_psinfo (abfd, note); | |
4337 | else | |
4338 | return s7_bfd_score_elf_grok_psinfo (abfd, note); | |
4339 | } | |
4340 | ||
4341 | static reloc_howto_type * | |
4342 | elf32_score_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) | |
4343 | { | |
4344 | /* s3: NOTE!!! | |
4345 | gas will call elf32_score_reloc_type_lookup, and don't write elf file. | |
4346 | So just using score3, but we don't know ld will call this or not. | |
4347 | If so, this way can't work. */ | |
4348 | ||
4349 | if (score3) | |
4350 | return s3_elf32_score_reloc_type_lookup (abfd, code); | |
4351 | else | |
4352 | return s7_elf32_score_reloc_type_lookup (abfd, code); | |
4353 | } | |
4354 | ||
4dfe6ac6 NC |
4355 | /* Create a score elf linker hash table. |
4356 | This is a copy of _bfd_elf_link_hash_table_create() except with a | |
4357 | different hash table entry creation function. */ | |
4358 | ||
c3b7224a NC |
4359 | static struct bfd_link_hash_table * |
4360 | elf32_score_link_hash_table_create (bfd *abfd) | |
4361 | { | |
4dfe6ac6 NC |
4362 | struct elf_link_hash_table *ret; |
4363 | bfd_size_type amt = sizeof (struct elf_link_hash_table); | |
4364 | ||
7bf52ea2 | 4365 | ret = (struct elf_link_hash_table *) bfd_zmalloc (amt); |
4dfe6ac6 NC |
4366 | if (ret == NULL) |
4367 | return NULL; | |
4368 | ||
4369 | if (!_bfd_elf_link_hash_table_init (ret, abfd, score_elf_link_hash_newfunc, | |
4370 | sizeof (struct score_elf_link_hash_entry), | |
4371 | GENERIC_ELF_DATA)) | |
4372 | { | |
4373 | free (ret); | |
4374 | return NULL; | |
4375 | } | |
4376 | ||
4377 | return &ret->root; | |
c3b7224a NC |
4378 | } |
4379 | ||
4380 | static bfd_boolean | |
4381 | elf32_score_print_private_bfd_data (bfd *abfd, void * ptr) | |
4382 | { | |
4383 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4384 | return s3_elf32_score_print_private_bfd_data (abfd, ptr); | |
4385 | else | |
4386 | return s7_elf32_score_print_private_bfd_data (abfd, ptr); | |
4387 | } | |
4388 | ||
4389 | static bfd_boolean | |
4390 | elf32_score_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4391 | { | |
4392 | if (bfd_get_mach (obfd) == bfd_mach_score3) | |
4393 | return s3_elf32_score_merge_private_bfd_data (ibfd, obfd); | |
4394 | else | |
4395 | return s7_elf32_score_merge_private_bfd_data (ibfd, obfd); | |
4396 | } | |
4397 | ||
4398 | static bfd_boolean | |
4399 | elf32_score_new_section_hook (bfd *abfd, asection *sec) | |
4400 | { | |
4401 | if (bfd_get_mach (abfd) == bfd_mach_score3) | |
4402 | return s3_elf32_score_new_section_hook (abfd, sec); | |
4403 | else | |
4404 | return s7_elf32_score_new_section_hook (abfd, sec); | |
4405 | } | |
4406 | ||
4407 | ||
4408 | /* s3_s7: don't need to split. */ | |
4409 | ||
4410 | /* Set the right machine number. */ | |
4411 | static bfd_boolean | |
4412 | _bfd_score_elf_score_object_p (bfd * abfd) | |
4413 | { | |
4414 | int e_set = bfd_mach_score7; | |
4415 | ||
4416 | if (elf_elfheader (abfd)->e_machine == EM_SCORE) | |
4417 | { | |
4418 | int e_mach = elf_elfheader (abfd)->e_flags & EF_SCORE_MACH & EF_OMIT_PIC_FIXDD; | |
4419 | switch (e_mach) | |
4420 | { | |
4421 | /* Set default target is score7. */ | |
4422 | default: | |
4423 | case E_SCORE_MACH_SCORE7: | |
4424 | e_set = bfd_mach_score7; | |
4425 | break; | |
4426 | ||
4427 | case E_SCORE_MACH_SCORE3: | |
4428 | e_set = bfd_mach_score3; | |
4429 | break; | |
4430 | } | |
4431 | } | |
4432 | ||
4433 | return bfd_default_set_arch_mach (abfd, bfd_arch_score, e_set); | |
4434 | } | |
4435 | ||
4436 | bfd_boolean | |
4437 | _bfd_score_elf_common_definition (Elf_Internal_Sym *sym) | |
4438 | { | |
4439 | return (sym->st_shndx == SHN_COMMON || sym->st_shndx == SHN_SCORE_SCOMMON); | |
4440 | } | |
4441 | ||
4442 | /*****************************************************************************/ | |
4443 | ||
1c0d3aa6 NC |
4444 | |
4445 | #define USE_REL 1 | |
4446 | #define TARGET_LITTLE_SYM bfd_elf32_littlescore_vec | |
4447 | #define TARGET_LITTLE_NAME "elf32-littlescore" | |
4448 | #define TARGET_BIG_SYM bfd_elf32_bigscore_vec | |
4449 | #define TARGET_BIG_NAME "elf32-bigscore" | |
4450 | #define ELF_ARCH bfd_arch_score | |
4451 | #define ELF_MACHINE_CODE EM_SCORE | |
c3b7224a | 4452 | #define ELF_MACHINE_ALT1 EM_SCORE_OLD |
1c0d3aa6 NC |
4453 | #define ELF_MAXPAGESIZE 0x8000 |
4454 | ||
9838404f AM |
4455 | #define elf_info_to_howto 0 |
4456 | #define elf_info_to_howto_rel _bfd_score_info_to_howto | |
4457 | #define elf_backend_relocate_section _bfd_score_elf_relocate_section | |
4458 | #define elf_backend_check_relocs _bfd_score_elf_check_relocs | |
4459 | #define elf_backend_add_symbol_hook _bfd_score_elf_add_symbol_hook | |
4460 | #define elf_backend_symbol_processing _bfd_score_elf_symbol_processing | |
4461 | #define elf_backend_link_output_symbol_hook \ | |
4462 | _bfd_score_elf_link_output_symbol_hook | |
4463 | #define elf_backend_section_from_bfd_section \ | |
4464 | _bfd_score_elf_section_from_bfd_section | |
4465 | #define elf_backend_adjust_dynamic_symbol \ | |
4466 | _bfd_score_elf_adjust_dynamic_symbol | |
4467 | #define elf_backend_always_size_sections \ | |
4468 | _bfd_score_elf_always_size_sections | |
4469 | #define elf_backend_size_dynamic_sections \ | |
4470 | _bfd_score_elf_size_dynamic_sections | |
4471 | #define elf_backend_omit_section_dynsym \ | |
4472 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
4473 | #define elf_backend_create_dynamic_sections \ | |
4474 | _bfd_score_elf_create_dynamic_sections | |
4475 | #define elf_backend_finish_dynamic_symbol \ | |
4476 | _bfd_score_elf_finish_dynamic_symbol | |
4477 | #define elf_backend_finish_dynamic_sections \ | |
4478 | _bfd_score_elf_finish_dynamic_sections | |
4479 | #define elf_backend_fake_sections _bfd_score_elf_fake_sections | |
4480 | #define elf_backend_section_processing _bfd_score_elf_section_processing | |
4481 | #define elf_backend_write_section _bfd_score_elf_write_section | |
4482 | #define elf_backend_copy_indirect_symbol _bfd_score_elf_copy_indirect_symbol | |
4483 | #define elf_backend_hide_symbol _bfd_score_elf_hide_symbol | |
4484 | #define elf_backend_discard_info _bfd_score_elf_discard_info | |
4485 | #define elf_backend_ignore_discarded_relocs \ | |
4486 | _bfd_score_elf_ignore_discarded_relocs | |
4487 | #define elf_backend_gc_mark_hook _bfd_score_elf_gc_mark_hook | |
4488 | #define elf_backend_grok_prstatus _bfd_score_elf_grok_prstatus | |
4489 | #define elf_backend_grok_psinfo _bfd_score_elf_grok_psinfo | |
4490 | #define elf_backend_can_gc_sections 1 | |
4491 | #define elf_backend_want_plt_sym 0 | |
4492 | #define elf_backend_got_header_size (4 * SCORE_RESERVED_GOTNO) | |
4493 | #define elf_backend_plt_header_size 0 | |
4494 | #define elf_backend_collect TRUE | |
4495 | #define elf_backend_type_change_ok TRUE | |
c3b7224a | 4496 | #define elf_backend_object_p _bfd_score_elf_score_object_p |
9838404f AM |
4497 | |
4498 | #define bfd_elf32_bfd_reloc_type_lookup elf32_score_reloc_type_lookup | |
157090f7 AM |
4499 | #define bfd_elf32_bfd_reloc_name_lookup \ |
4500 | elf32_score_reloc_name_lookup | |
9838404f AM |
4501 | #define bfd_elf32_bfd_link_hash_table_create elf32_score_link_hash_table_create |
4502 | #define bfd_elf32_bfd_print_private_bfd_data elf32_score_print_private_bfd_data | |
4503 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_score_merge_private_bfd_data | |
4504 | #define bfd_elf32_new_section_hook elf32_score_new_section_hook | |
1c0d3aa6 NC |
4505 | |
4506 | #include "elf32-target.h" |