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61ba1cf9 ILT |
1 | // target-reloc.h -- target specific relocation support -*- C++ -*- |
2 | ||
82704155 | 3 | // Copyright (C) 2006-2019 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
61ba1cf9 ILT |
23 | #ifndef GOLD_TARGET_RELOC_H |
24 | #define GOLD_TARGET_RELOC_H | |
25 | ||
26 | #include "elfcpp.h" | |
27 | #include "symtab.h" | |
364c7fa5 | 28 | #include "object.h" |
6a74a719 | 29 | #include "reloc.h" |
c06b7b0b | 30 | #include "reloc-types.h" |
61ba1cf9 ILT |
31 | |
32 | namespace gold | |
33 | { | |
34 | ||
6a74a719 ILT |
35 | // This function implements the generic part of reloc scanning. The |
36 | // template parameter Scan must be a class type which provides two | |
37 | // functions: local() and global(). Those functions implement the | |
38 | // machine specific part of scanning. We do it this way to | |
9b547ce6 | 39 | // avoid making a function call for each relocation, and to avoid |
6a74a719 | 40 | // repeating the generic code for each target. |
92e059d8 | 41 | |
4d625b70 CC |
42 | template<int size, bool big_endian, typename Target_type, |
43 | typename Scan, typename Classify_reloc> | |
92e059d8 ILT |
44 | inline void |
45 | scan_relocs( | |
92e059d8 | 46 | Symbol_table* symtab, |
ead1e424 ILT |
47 | Layout* layout, |
48 | Target_type* target, | |
6fa2a40b | 49 | Sized_relobj_file<size, big_endian>* object, |
a3ad94ed | 50 | unsigned int data_shndx, |
92e059d8 ILT |
51 | const unsigned char* prelocs, |
52 | size_t reloc_count, | |
730cdc88 ILT |
53 | Output_section* output_section, |
54 | bool needs_special_offset_handling, | |
92e059d8 | 55 | size_t local_count, |
730cdc88 | 56 | const unsigned char* plocal_syms) |
92e059d8 | 57 | { |
4d625b70 CC |
58 | typedef typename Classify_reloc::Reltype Reltype; |
59 | const int reloc_size = Classify_reloc::reloc_size; | |
92e059d8 ILT |
60 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
61 | Scan scan; | |
62 | ||
63 | for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size) | |
64 | { | |
65 | Reltype reloc(prelocs); | |
66 | ||
730cdc88 ILT |
67 | if (needs_special_offset_handling |
68 | && !output_section->is_input_address_mapped(object, data_shndx, | |
69 | reloc.get_r_offset())) | |
70 | continue; | |
71 | ||
4d625b70 CC |
72 | unsigned int r_sym = Classify_reloc::get_r_sym(&reloc); |
73 | unsigned int r_type = Classify_reloc::get_r_type(&reloc); | |
92e059d8 ILT |
74 | |
75 | if (r_sym < local_count) | |
76 | { | |
a3ad94ed | 77 | gold_assert(plocal_syms != NULL); |
92e059d8 ILT |
78 | typename elfcpp::Sym<size, big_endian> lsym(plocal_syms |
79 | + r_sym * sym_size); | |
d491d34e ILT |
80 | unsigned int shndx = lsym.get_st_shndx(); |
81 | bool is_ordinary; | |
82 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
bfdfa4cd AM |
83 | // If RELOC is a relocation against a local symbol in a |
84 | // section we are discarding then we can ignore it. It will | |
85 | // eventually become a reloc against the value zero. | |
86 | // | |
87 | // FIXME: We should issue a warning if this is an | |
88 | // allocated section; is this the best place to do it? | |
62fe925a | 89 | // |
bfdfa4cd AM |
90 | // FIXME: The old GNU linker would in some cases look |
91 | // for the linkonce section which caused this section to | |
92 | // be discarded, and, if the other section was the same | |
93 | // size, change the reloc to refer to the other section. | |
94 | // That seems risky and weird to me, and I don't know of | |
95 | // any case where it is actually required. | |
96 | bool is_discarded = (is_ordinary | |
97 | && shndx != elfcpp::SHN_UNDEF | |
98 | && !object->is_section_included(shndx) | |
99 | && !symtab->is_section_folded(object, shndx)); | |
ad0f2072 | 100 | scan.local(symtab, layout, target, object, data_shndx, |
bfdfa4cd | 101 | output_section, reloc, r_type, lsym, is_discarded); |
92e059d8 ILT |
102 | } |
103 | else | |
104 | { | |
730cdc88 | 105 | Symbol* gsym = object->global_symbol(r_sym); |
a3ad94ed | 106 | gold_assert(gsym != NULL); |
92e059d8 ILT |
107 | if (gsym->is_forwarder()) |
108 | gsym = symtab->resolve_forwards(gsym); | |
109 | ||
ad0f2072 | 110 | scan.global(symtab, layout, target, object, data_shndx, |
07f397ab | 111 | output_section, reloc, r_type, gsym); |
92e059d8 ILT |
112 | } |
113 | } | |
114 | } | |
115 | ||
e94cf127 CC |
116 | // Behavior for relocations to discarded comdat sections. |
117 | ||
118 | enum Comdat_behavior | |
119 | { | |
120 | CB_UNDETERMINED, // Not yet determined -- need to look at section name. | |
121 | CB_PRETEND, // Attempt to map to the corresponding kept section. | |
122 | CB_IGNORE, // Ignore the relocation. | |
43193fe9 | 123 | CB_ERROR // Print an error. |
e94cf127 CC |
124 | }; |
125 | ||
168a4726 | 126 | class Default_comdat_behavior |
e94cf127 | 127 | { |
168a4726 AM |
128 | public: |
129 | // Decide what the linker should do for relocations that refer to | |
130 | // discarded comdat sections. This decision is based on the name of | |
131 | // the section being relocated. | |
132 | ||
133 | inline Comdat_behavior | |
134 | get(const char* name) | |
135 | { | |
136 | if (Layout::is_debug_info_section(name)) | |
137 | return CB_PRETEND; | |
138 | if (strcmp(name, ".eh_frame") == 0 | |
139 | || strcmp(name, ".gcc_except_table") == 0) | |
140 | return CB_IGNORE; | |
43193fe9 | 141 | return CB_ERROR; |
168a4726 AM |
142 | } |
143 | }; | |
e94cf127 | 144 | |
837504c4 ILT |
145 | // Give an error for a symbol with non-default visibility which is not |
146 | // defined locally. | |
147 | ||
148 | inline void | |
149 | visibility_error(const Symbol* sym) | |
150 | { | |
151 | const char* v; | |
152 | switch (sym->visibility()) | |
153 | { | |
154 | case elfcpp::STV_INTERNAL: | |
155 | v = _("internal"); | |
156 | break; | |
157 | case elfcpp::STV_HIDDEN: | |
158 | v = _("hidden"); | |
159 | break; | |
160 | case elfcpp::STV_PROTECTED: | |
161 | v = _("protected"); | |
162 | break; | |
163 | default: | |
164 | gold_unreachable(); | |
165 | } | |
166 | gold_error(_("%s symbol '%s' is not defined locally"), | |
167 | v, sym->name()); | |
168 | } | |
169 | ||
191f1a2d ILT |
170 | // Return true if we are should issue an error saying that SYM is an |
171 | // undefined symbol. This is called if there is a relocation against | |
172 | // SYM. | |
173 | ||
174 | inline bool | |
175 | issue_undefined_symbol_error(const Symbol* sym) | |
176 | { | |
beabb2c6 ILT |
177 | // We only report global symbols. |
178 | if (sym == NULL) | |
179 | return false; | |
180 | ||
181 | // We only report undefined symbols. | |
182 | if (!sym->is_undefined() && !sym->is_placeholder()) | |
183 | return false; | |
184 | ||
185 | // We don't report weak symbols. | |
d1bddd3c | 186 | if (sym->is_weak_undefined()) |
beabb2c6 ILT |
187 | return false; |
188 | ||
648c5cbb CC |
189 | // We don't report symbols defined in discarded sections, |
190 | // unless they're placeholder symbols that should have been | |
191 | // provided by a plugin. | |
192 | if (sym->is_defined_in_discarded_section() && !sym->is_placeholder()) | |
beabb2c6 ILT |
193 | return false; |
194 | ||
195 | // If the target defines this symbol, don't report it here. | |
196 | if (parameters->target().is_defined_by_abi(sym)) | |
197 | return false; | |
198 | ||
199 | // See if we've been told to ignore whether this symbol is | |
200 | // undefined. | |
201 | const char* const u = parameters->options().unresolved_symbols(); | |
202 | if (u != NULL) | |
203 | { | |
204 | if (strcmp(u, "ignore-all") == 0) | |
205 | return false; | |
e2153196 ILT |
206 | if (strcmp(u, "report-all") == 0) |
207 | return true; | |
beabb2c6 ILT |
208 | if (strcmp(u, "ignore-in-object-files") == 0 && !sym->in_dyn()) |
209 | return false; | |
210 | if (strcmp(u, "ignore-in-shared-libs") == 0 && !sym->in_reg()) | |
211 | return false; | |
212 | } | |
213 | ||
d1bddd3c CC |
214 | // If the symbol is hidden, report it. |
215 | if (sym->visibility() == elfcpp::STV_HIDDEN) | |
216 | return true; | |
217 | ||
beabb2c6 ILT |
218 | // When creating a shared library, only report unresolved symbols if |
219 | // -z defs was used. | |
220 | if (parameters->options().shared() && !parameters->options().defs()) | |
221 | return false; | |
222 | ||
223 | // Otherwise issue a warning. | |
224 | return true; | |
191f1a2d ILT |
225 | } |
226 | ||
43193fe9 CC |
227 | template<int size, bool big_endian> |
228 | inline void | |
229 | issue_discarded_error( | |
230 | const Relocate_info<size, big_endian>* relinfo, | |
231 | size_t shndx, | |
232 | section_offset_type offset, | |
233 | unsigned int r_sym, | |
234 | const Symbol* gsym) | |
235 | { | |
236 | Sized_relobj_file<size, big_endian>* object = relinfo->object; | |
237 | ||
238 | if (gsym == NULL) | |
239 | { | |
240 | gold_error_at_location( | |
241 | relinfo, shndx, offset, | |
242 | _("relocation refers to local symbol \"%s\" [%u], " | |
243 | "which is defined in a discarded section"), | |
244 | object->get_symbol_name(r_sym), r_sym); | |
245 | } | |
246 | else | |
247 | { | |
248 | gold_error_at_location( | |
249 | relinfo, shndx, offset, | |
250 | _("relocation refers to global symbol \"%s\", " | |
251 | "which is defined in a discarded section"), | |
252 | gsym->demangled_name().c_str()); | |
253 | } | |
254 | ||
255 | bool is_ordinary; | |
256 | typename elfcpp::Elf_types<size>::Elf_Addr value; | |
257 | unsigned int orig_shndx = object->symbol_section_and_value(r_sym, &value, | |
258 | &is_ordinary); | |
259 | if (orig_shndx != elfcpp::SHN_UNDEF) | |
260 | { | |
261 | unsigned int key_symndx; | |
262 | Relobj* kept_obj = object->find_kept_section_object(orig_shndx, | |
263 | &key_symndx); | |
264 | if (key_symndx != 0) | |
265 | gold_info(_(" section group signature: \"%s\""), | |
266 | object->get_symbol_name(key_symndx)); | |
267 | if (kept_obj != NULL) | |
268 | gold_info(_(" prevailing definition is from %s"), | |
269 | kept_obj->name().c_str()); | |
270 | } | |
271 | } | |
272 | ||
92e059d8 | 273 | // This function implements the generic part of relocation processing. |
6a74a719 ILT |
274 | // The template parameter Relocate must be a class type which provides |
275 | // a single function, relocate(), which implements the machine | |
276 | // specific part of a relocation. | |
61ba1cf9 | 277 | |
168a4726 AM |
278 | // The template parameter Relocate_comdat_behavior is a class type |
279 | // which provides a single function, get(), which determines what the | |
280 | // linker should do for relocations that refer to discarded comdat | |
281 | // sections. | |
282 | ||
61ba1cf9 | 283 | // SIZE is the ELF size: 32 or 64. BIG_ENDIAN is the endianness of |
92e059d8 ILT |
284 | // the data. SH_TYPE is the section type: SHT_REL or SHT_RELA. |
285 | // RELOCATE implements operator() to do a relocation. | |
61ba1cf9 | 286 | |
92e059d8 | 287 | // PRELOCS points to the relocation data. RELOC_COUNT is the number |
730cdc88 ILT |
288 | // of relocs. OUTPUT_SECTION is the output section. |
289 | // NEEDS_SPECIAL_OFFSET_HANDLING is true if input offsets need to be | |
290 | // mapped to output offsets. | |
291 | ||
292 | // VIEW is the section data, VIEW_ADDRESS is its memory address, and | |
293 | // VIEW_SIZE is the size. These refer to the input section, unless | |
294 | // NEEDS_SPECIAL_OFFSET_HANDLING is true, in which case they refer to | |
295 | // the output section. | |
61ba1cf9 | 296 | |
364c7fa5 ILT |
297 | // RELOC_SYMBOL_CHANGES is used for -fsplit-stack support. If it is |
298 | // not NULL, it is a vector indexed by relocation index. If that | |
299 | // entry is not NULL, it points to a global symbol which used as the | |
300 | // symbol for the relocation, ignoring the symbol index in the | |
301 | // relocation. | |
302 | ||
4d625b70 | 303 | template<int size, bool big_endian, typename Target_type, |
168a4726 | 304 | typename Relocate, |
4d625b70 CC |
305 | typename Relocate_comdat_behavior, |
306 | typename Classify_reloc> | |
61ba1cf9 ILT |
307 | inline void |
308 | relocate_section( | |
92e059d8 | 309 | const Relocate_info<size, big_endian>* relinfo, |
ead1e424 | 310 | Target_type* target, |
61ba1cf9 ILT |
311 | const unsigned char* prelocs, |
312 | size_t reloc_count, | |
730cdc88 ILT |
313 | Output_section* output_section, |
314 | bool needs_special_offset_handling, | |
61ba1cf9 ILT |
315 | unsigned char* view, |
316 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
364c7fa5 ILT |
317 | section_size_type view_size, |
318 | const Reloc_symbol_changes* reloc_symbol_changes) | |
61ba1cf9 | 319 | { |
4d625b70 CC |
320 | typedef typename Classify_reloc::Reltype Reltype; |
321 | const int reloc_size = Classify_reloc::reloc_size; | |
61ba1cf9 | 322 | Relocate relocate; |
168a4726 | 323 | Relocate_comdat_behavior relocate_comdat_behavior; |
61ba1cf9 | 324 | |
6fa2a40b | 325 | Sized_relobj_file<size, big_endian>* object = relinfo->object; |
730cdc88 | 326 | unsigned int local_count = object->local_symbol_count(); |
92e059d8 | 327 | |
e94cf127 CC |
328 | Comdat_behavior comdat_behavior = CB_UNDETERMINED; |
329 | ||
61ba1cf9 ILT |
330 | for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size) |
331 | { | |
332 | Reltype reloc(prelocs); | |
333 | ||
fe8718a4 ILT |
334 | section_offset_type offset = |
335 | convert_to_section_size_type(reloc.get_r_offset()); | |
61ba1cf9 | 336 | |
730cdc88 ILT |
337 | if (needs_special_offset_handling) |
338 | { | |
339 | offset = output_section->output_offset(relinfo->object, | |
340 | relinfo->data_shndx, | |
341 | offset); | |
342 | if (offset == -1) | |
343 | continue; | |
344 | } | |
345 | ||
4d625b70 | 346 | unsigned int r_sym = Classify_reloc::get_r_sym(&reloc); |
61ba1cf9 | 347 | |
c06b7b0b | 348 | const Sized_symbol<size>* sym; |
61ba1cf9 | 349 | |
b8e6aad9 ILT |
350 | Symbol_value<size> symval; |
351 | const Symbol_value<size> *psymval; | |
880cd20d ILT |
352 | bool is_defined_in_discarded_section; |
353 | unsigned int shndx; | |
c54b27d1 | 354 | const Symbol* gsym = NULL; |
364c7fa5 ILT |
355 | if (r_sym < local_count |
356 | && (reloc_symbol_changes == NULL | |
357 | || (*reloc_symbol_changes)[i] == NULL)) | |
61ba1cf9 ILT |
358 | { |
359 | sym = NULL; | |
730cdc88 | 360 | psymval = object->local_symbol(r_sym); |
e94cf127 CC |
361 | |
362 | // If the local symbol belongs to a section we are discarding, | |
363 | // and that section is a debug section, try to find the | |
364 | // corresponding kept section and map this symbol to its | |
62fe925a | 365 | // counterpart in the kept section. The symbol must not |
ef15dade | 366 | // correspond to a section we are folding. |
e94cf127 | 367 | bool is_ordinary; |
880cd20d ILT |
368 | shndx = psymval->input_shndx(&is_ordinary); |
369 | is_defined_in_discarded_section = | |
370 | (is_ordinary | |
371 | && shndx != elfcpp::SHN_UNDEF | |
372 | && !object->is_section_included(shndx) | |
373 | && !relinfo->symtab->is_section_folded(object, shndx)); | |
61ba1cf9 ILT |
374 | } |
375 | else | |
376 | { | |
364c7fa5 ILT |
377 | if (reloc_symbol_changes != NULL |
378 | && (*reloc_symbol_changes)[i] != NULL) | |
379 | gsym = (*reloc_symbol_changes)[i]; | |
380 | else | |
381 | { | |
382 | gsym = object->global_symbol(r_sym); | |
383 | gold_assert(gsym != NULL); | |
384 | if (gsym->is_forwarder()) | |
385 | gsym = relinfo->symtab->resolve_forwards(gsym); | |
386 | } | |
61ba1cf9 | 387 | |
c06b7b0b | 388 | sym = static_cast<const Sized_symbol<size>*>(gsym); |
d3bbad62 | 389 | if (sym->has_symtab_index() && sym->symtab_index() != -1U) |
b8e6aad9 ILT |
390 | symval.set_output_symtab_index(sym->symtab_index()); |
391 | else | |
392 | symval.set_no_output_symtab_entry(); | |
393 | symval.set_output_value(sym->value()); | |
7223e9ca ILT |
394 | if (gsym->type() == elfcpp::STT_TLS) |
395 | symval.set_is_tls_symbol(); | |
396 | else if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
397 | symval.set_is_ifunc_symbol(); | |
b8e6aad9 | 398 | psymval = &symval; |
880cd20d ILT |
399 | |
400 | is_defined_in_discarded_section = | |
401 | (gsym->is_defined_in_discarded_section() | |
402 | && gsym->is_undefined()); | |
403 | shndx = 0; | |
404 | } | |
405 | ||
406 | Symbol_value<size> symval2; | |
407 | if (is_defined_in_discarded_section) | |
408 | { | |
43193fe9 CC |
409 | std::string name = object->section_name(relinfo->data_shndx); |
410 | ||
880cd20d | 411 | if (comdat_behavior == CB_UNDETERMINED) |
168a4726 | 412 | comdat_behavior = relocate_comdat_behavior.get(name.c_str()); |
43193fe9 | 413 | |
880cd20d ILT |
414 | if (comdat_behavior == CB_PRETEND) |
415 | { | |
416 | // FIXME: This case does not work for global symbols. | |
417 | // We have no place to store the original section index. | |
418 | // Fortunately this does not matter for comdat sections, | |
419 | // only for sections explicitly discarded by a linker | |
420 | // script. | |
421 | bool found; | |
422 | typename elfcpp::Elf_types<size>::Elf_Addr value = | |
43193fe9 | 423 | object->map_to_kept_section(shndx, name, &found); |
880cd20d ILT |
424 | if (found) |
425 | symval2.set_output_value(value + psymval->input_value()); | |
426 | else | |
427 | symval2.set_output_value(0); | |
428 | } | |
429 | else | |
430 | { | |
43193fe9 CC |
431 | if (comdat_behavior == CB_ERROR) |
432 | issue_discarded_error(relinfo, i, offset, r_sym, gsym); | |
880cd20d ILT |
433 | symval2.set_output_value(0); |
434 | } | |
435 | symval2.set_no_output_symtab_entry(); | |
436 | psymval = &symval2; | |
ead1e424 | 437 | } |
61ba1cf9 | 438 | |
0e804863 ILT |
439 | // If OFFSET is out of range, still let the target decide to |
440 | // ignore the relocation. Pass in NULL as the VIEW argument so | |
441 | // that it can return quickly without trashing an invalid memory | |
442 | // address. | |
443 | unsigned char *v = view + offset; | |
444 | if (offset < 0 || static_cast<section_size_type>(offset) >= view_size) | |
445 | v = NULL; | |
446 | ||
4d625b70 CC |
447 | if (!relocate.relocate(relinfo, Classify_reloc::sh_type, target, |
448 | output_section, i, prelocs, sym, psymval, | |
91a65d2f | 449 | v, view_address + offset, view_size)) |
ead1e424 ILT |
450 | continue; |
451 | ||
0e804863 | 452 | if (v == NULL) |
ead1e424 | 453 | { |
75f2446e ILT |
454 | gold_error_at_location(relinfo, i, offset, |
455 | _("reloc has bad offset %zu"), | |
456 | static_cast<size_t>(offset)); | |
457 | continue; | |
61ba1cf9 ILT |
458 | } |
459 | ||
191f1a2d | 460 | if (issue_undefined_symbol_error(sym)) |
1a221d3d | 461 | gold_undefined_symbol_at_location(sym, relinfo, i, offset); |
837504c4 ILT |
462 | else if (sym != NULL |
463 | && sym->visibility() != elfcpp::STV_DEFAULT | |
d1bddd3c | 464 | && (sym->is_strong_undefined() || sym->is_from_dynobj())) |
837504c4 | 465 | visibility_error(sym); |
f6ce93d6 ILT |
466 | |
467 | if (sym != NULL && sym->has_warning()) | |
75f2446e | 468 | relinfo->symtab->issue_warning(sym, relinfo, i, offset); |
61ba1cf9 ILT |
469 | } |
470 | } | |
471 | ||
94a3fc8b CC |
472 | // Apply an incremental relocation. |
473 | ||
474 | template<int size, bool big_endian, typename Target_type, | |
475 | typename Relocate> | |
476 | void | |
477 | apply_relocation(const Relocate_info<size, big_endian>* relinfo, | |
478 | Target_type* target, | |
479 | typename elfcpp::Elf_types<size>::Elf_Addr r_offset, | |
480 | unsigned int r_type, | |
481 | typename elfcpp::Elf_types<size>::Elf_Swxword r_addend, | |
482 | const Symbol* gsym, | |
483 | unsigned char* view, | |
484 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
485 | section_size_type view_size) | |
486 | { | |
487 | // Construct the ELF relocation in a temporary buffer. | |
d55525b9 | 488 | const int reloc_size = elfcpp::Elf_sizes<size>::rela_size; |
94a3fc8b | 489 | unsigned char relbuf[reloc_size]; |
d55525b9 | 490 | elfcpp::Rela_write<size, big_endian> orel(relbuf); |
94a3fc8b | 491 | orel.put_r_offset(r_offset); |
d55525b9 | 492 | orel.put_r_info(elfcpp::elf_r_info<size>(0, r_type)); |
94a3fc8b CC |
493 | orel.put_r_addend(r_addend); |
494 | ||
495 | // Setup a Symbol_value for the global symbol. | |
d55525b9 L |
496 | const Sized_symbol<size>* sym = static_cast<const Sized_symbol<size>*>(gsym); |
497 | Symbol_value<size> symval; | |
94a3fc8b CC |
498 | gold_assert(sym->has_symtab_index() && sym->symtab_index() != -1U); |
499 | symval.set_output_symtab_index(sym->symtab_index()); | |
500 | symval.set_output_value(sym->value()); | |
501 | if (gsym->type() == elfcpp::STT_TLS) | |
502 | symval.set_is_tls_symbol(); | |
503 | else if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
504 | symval.set_is_ifunc_symbol(); | |
505 | ||
506 | Relocate relocate; | |
91a65d2f AM |
507 | relocate.relocate(relinfo, elfcpp::SHT_RELA, target, NULL, |
508 | -1U, relbuf, sym, &symval, | |
94a3fc8b CC |
509 | view + r_offset, address + r_offset, view_size); |
510 | } | |
511 | ||
4d625b70 CC |
512 | // A class for inquiring about properties of a relocation, |
513 | // used while scanning relocs during a relocatable link and | |
514 | // garbage collection. This class may be used as the default | |
515 | // for SHT_RELA targets, but SHT_REL targets must implement | |
516 | // a derived class that overrides get_size_for_reloc. | |
517 | // The MIPS-64 target also needs to override the methods | |
518 | // for accessing the r_sym and r_type fields of a relocation, | |
519 | // due to its non-standard use of the r_info field. | |
520 | ||
521 | template<int sh_type_, int size, bool big_endian> | |
522 | class Default_classify_reloc | |
523 | { | |
524 | public: | |
525 | typedef typename Reloc_types<sh_type_, size, big_endian>::Reloc | |
526 | Reltype; | |
527 | typedef typename Reloc_types<sh_type_, size, big_endian>::Reloc_write | |
528 | Reltype_write; | |
529 | static const int reloc_size = | |
530 | Reloc_types<sh_type_, size, big_endian>::reloc_size; | |
531 | static const int sh_type = sh_type_; | |
532 | ||
533 | // Return the symbol referred to by the relocation. | |
534 | static inline unsigned int | |
535 | get_r_sym(const Reltype* reloc) | |
536 | { return elfcpp::elf_r_sym<size>(reloc->get_r_info()); } | |
537 | ||
538 | // Return the type of the relocation. | |
539 | static inline unsigned int | |
540 | get_r_type(const Reltype* reloc) | |
541 | { return elfcpp::elf_r_type<size>(reloc->get_r_info()); } | |
542 | ||
543 | // Return the explicit addend of the relocation (return 0 for SHT_REL). | |
544 | static inline typename elfcpp::Elf_types<size>::Elf_Swxword | |
545 | get_r_addend(const Reltype* reloc) | |
546 | { return Reloc_types<sh_type_, size, big_endian>::get_reloc_addend(reloc); } | |
547 | ||
548 | // Write the r_info field to a new reloc, using the r_info field from | |
549 | // the original reloc, replacing the r_sym field with R_SYM. | |
550 | static inline void | |
551 | put_r_info(Reltype_write* new_reloc, Reltype* reloc, unsigned int r_sym) | |
552 | { | |
553 | unsigned int r_type = elfcpp::elf_r_type<size>(reloc->get_r_info()); | |
554 | new_reloc->put_r_info(elfcpp::elf_r_info<size>(r_sym, r_type)); | |
555 | } | |
556 | ||
557 | // Write the r_addend field to a new reloc. | |
558 | static inline void | |
559 | put_r_addend(Reltype_write* to, | |
560 | typename elfcpp::Elf_types<size>::Elf_Swxword addend) | |
561 | { Reloc_types<sh_type_, size, big_endian>::set_reloc_addend(to, addend); } | |
562 | ||
563 | // Return the size of the addend of the relocation (only used for SHT_REL). | |
564 | static unsigned int | |
565 | get_size_for_reloc(unsigned int, Relobj*) | |
566 | { | |
567 | gold_unreachable(); | |
568 | return 0; | |
569 | } | |
570 | }; | |
571 | ||
6a74a719 | 572 | // This class may be used as a typical class for the |
4d625b70 CC |
573 | // Scan_relocatable_reloc parameter to scan_relocatable_relocs. |
574 | // This class is intended to capture the most typical target behaviour, | |
575 | // while still permitting targets to define their own independent class | |
576 | // for Scan_relocatable_reloc. | |
577 | ||
578 | template<typename Classify_reloc> | |
6a74a719 ILT |
579 | class Default_scan_relocatable_relocs |
580 | { | |
581 | public: | |
4d625b70 CC |
582 | typedef typename Classify_reloc::Reltype Reltype; |
583 | static const int reloc_size = Classify_reloc::reloc_size; | |
584 | static const int sh_type = Classify_reloc::sh_type; | |
585 | ||
586 | // Return the symbol referred to by the relocation. | |
587 | static inline unsigned int | |
588 | get_r_sym(const Reltype* reloc) | |
589 | { return Classify_reloc::get_r_sym(reloc); } | |
590 | ||
591 | // Return the type of the relocation. | |
592 | static inline unsigned int | |
593 | get_r_type(const Reltype* reloc) | |
594 | { return Classify_reloc::get_r_type(reloc); } | |
595 | ||
6a74a719 ILT |
596 | // Return the strategy to use for a local symbol which is not a |
597 | // section symbol, given the relocation type. | |
598 | inline Relocatable_relocs::Reloc_strategy | |
68943102 | 599 | local_non_section_strategy(unsigned int r_type, Relobj*, unsigned int r_sym) |
c2508178 ILT |
600 | { |
601 | // We assume that relocation type 0 is NONE. Targets which are | |
602 | // different must override. | |
68943102 | 603 | if (r_type == 0 && r_sym == 0) |
c2508178 ILT |
604 | return Relocatable_relocs::RELOC_DISCARD; |
605 | return Relocatable_relocs::RELOC_COPY; | |
606 | } | |
6a74a719 ILT |
607 | |
608 | // Return the strategy to use for a local symbol which is a section | |
609 | // symbol, given the relocation type. | |
610 | inline Relocatable_relocs::Reloc_strategy | |
611 | local_section_strategy(unsigned int r_type, Relobj* object) | |
612 | { | |
613 | if (sh_type == elfcpp::SHT_RELA) | |
614 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA; | |
615 | else | |
616 | { | |
4d625b70 | 617 | switch (Classify_reloc::get_size_for_reloc(r_type, object)) |
6a74a719 ILT |
618 | { |
619 | case 0: | |
7019cd25 | 620 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0; |
6a74a719 ILT |
621 | case 1: |
622 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_1; | |
623 | case 2: | |
624 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_2; | |
625 | case 4: | |
626 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_4; | |
627 | case 8: | |
628 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_8; | |
629 | default: | |
630 | gold_unreachable(); | |
631 | } | |
632 | } | |
633 | } | |
634 | ||
635 | // Return the strategy to use for a global symbol, given the | |
636 | // relocation type, the object, and the symbol index. | |
637 | inline Relocatable_relocs::Reloc_strategy | |
68943102 ILT |
638 | global_strategy(unsigned int, Relobj*, unsigned int) |
639 | { return Relocatable_relocs::RELOC_COPY; } | |
6a74a719 ILT |
640 | }; |
641 | ||
4d625b70 CC |
642 | // This is a strategy class used with scan_relocatable_relocs |
643 | // and --emit-relocs. | |
644 | ||
645 | template<typename Classify_reloc> | |
646 | class Default_emit_relocs_strategy | |
647 | { | |
648 | public: | |
649 | typedef typename Classify_reloc::Reltype Reltype; | |
650 | static const int reloc_size = Classify_reloc::reloc_size; | |
651 | static const int sh_type = Classify_reloc::sh_type; | |
652 | ||
653 | // Return the symbol referred to by the relocation. | |
654 | static inline unsigned int | |
655 | get_r_sym(const Reltype* reloc) | |
656 | { return Classify_reloc::get_r_sym(reloc); } | |
657 | ||
658 | // Return the type of the relocation. | |
659 | static inline unsigned int | |
660 | get_r_type(const Reltype* reloc) | |
661 | { return Classify_reloc::get_r_type(reloc); } | |
662 | ||
663 | // A local non-section symbol. | |
664 | inline Relocatable_relocs::Reloc_strategy | |
665 | local_non_section_strategy(unsigned int, Relobj*, unsigned int) | |
666 | { return Relocatable_relocs::RELOC_COPY; } | |
667 | ||
668 | // A local section symbol. | |
669 | inline Relocatable_relocs::Reloc_strategy | |
670 | local_section_strategy(unsigned int, Relobj*) | |
671 | { | |
672 | if (sh_type == elfcpp::SHT_RELA) | |
673 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA; | |
674 | else | |
675 | { | |
676 | // The addend is stored in the section contents. Since this | |
677 | // is not a relocatable link, we are going to apply the | |
678 | // relocation contents to the section as usual. This means | |
679 | // that we have no way to record the original addend. If the | |
680 | // original addend is not zero, there is basically no way for | |
681 | // the user to handle this correctly. Caveat emptor. | |
682 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0; | |
683 | } | |
684 | } | |
685 | ||
686 | // A global symbol. | |
687 | inline Relocatable_relocs::Reloc_strategy | |
688 | global_strategy(unsigned int, Relobj*, unsigned int) | |
689 | { return Relocatable_relocs::RELOC_COPY; } | |
690 | }; | |
691 | ||
6a74a719 ILT |
692 | // Scan relocs during a relocatable link. This is a default |
693 | // definition which should work for most targets. | |
694 | // Scan_relocatable_reloc must name a class type which provides three | |
695 | // functions which return a Relocatable_relocs::Reloc_strategy code: | |
696 | // global_strategy, local_non_section_strategy, and | |
697 | // local_section_strategy. Most targets should be able to use | |
698 | // Default_scan_relocatable_relocs as this class. | |
699 | ||
4d625b70 | 700 | template<int size, bool big_endian, typename Scan_relocatable_reloc> |
6a74a719 ILT |
701 | void |
702 | scan_relocatable_relocs( | |
6a74a719 ILT |
703 | Symbol_table*, |
704 | Layout*, | |
6fa2a40b | 705 | Sized_relobj_file<size, big_endian>* object, |
6a74a719 ILT |
706 | unsigned int data_shndx, |
707 | const unsigned char* prelocs, | |
708 | size_t reloc_count, | |
709 | Output_section* output_section, | |
710 | bool needs_special_offset_handling, | |
711 | size_t local_symbol_count, | |
712 | const unsigned char* plocal_syms, | |
713 | Relocatable_relocs* rr) | |
714 | { | |
4d625b70 CC |
715 | typedef typename Scan_relocatable_reloc::Reltype Reltype; |
716 | const int reloc_size = Scan_relocatable_reloc::reloc_size; | |
6a74a719 ILT |
717 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; |
718 | Scan_relocatable_reloc scan; | |
719 | ||
720 | for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size) | |
721 | { | |
722 | Reltype reloc(prelocs); | |
723 | ||
724 | Relocatable_relocs::Reloc_strategy strategy; | |
725 | ||
726 | if (needs_special_offset_handling | |
727 | && !output_section->is_input_address_mapped(object, data_shndx, | |
728 | reloc.get_r_offset())) | |
729 | strategy = Relocatable_relocs::RELOC_DISCARD; | |
730 | else | |
731 | { | |
4d625b70 CC |
732 | const unsigned int r_sym = Scan_relocatable_reloc::get_r_sym(&reloc); |
733 | const unsigned int r_type = | |
734 | Scan_relocatable_reloc::get_r_type(&reloc); | |
6a74a719 ILT |
735 | |
736 | if (r_sym >= local_symbol_count) | |
737 | strategy = scan.global_strategy(r_type, object, r_sym); | |
738 | else | |
739 | { | |
740 | gold_assert(plocal_syms != NULL); | |
741 | typename elfcpp::Sym<size, big_endian> lsym(plocal_syms | |
742 | + r_sym * sym_size); | |
d491d34e ILT |
743 | unsigned int shndx = lsym.get_st_shndx(); |
744 | bool is_ordinary; | |
745 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
746 | if (is_ordinary | |
6a74a719 | 747 | && shndx != elfcpp::SHN_UNDEF |
d491d34e | 748 | && !object->is_section_included(shndx)) |
6a74a719 ILT |
749 | { |
750 | // RELOC is a relocation against a local symbol | |
751 | // defined in a section we are discarding. Discard | |
752 | // the reloc. FIXME: Should we issue a warning? | |
753 | strategy = Relocatable_relocs::RELOC_DISCARD; | |
754 | } | |
755 | else if (lsym.get_st_type() != elfcpp::STT_SECTION) | |
68943102 ILT |
756 | strategy = scan.local_non_section_strategy(r_type, object, |
757 | r_sym); | |
6a74a719 ILT |
758 | else |
759 | { | |
760 | strategy = scan.local_section_strategy(r_type, object); | |
761 | if (strategy != Relocatable_relocs::RELOC_DISCARD) | |
ef9beddf | 762 | object->output_section(shndx)->set_needs_symtab_index(); |
6a74a719 | 763 | } |
d3bbad62 ILT |
764 | |
765 | if (strategy == Relocatable_relocs::RELOC_COPY) | |
766 | object->set_must_have_output_symtab_entry(r_sym); | |
6a74a719 ILT |
767 | } |
768 | } | |
769 | ||
770 | rr->set_next_reloc_strategy(strategy); | |
771 | } | |
772 | } | |
773 | ||
7404fe1b AM |
774 | // Relocate relocs. Called for a relocatable link, and for --emit-relocs. |
775 | // This is a default definition which should work for most targets. | |
6a74a719 | 776 | |
4d625b70 | 777 | template<int size, bool big_endian, typename Classify_reloc> |
6a74a719 | 778 | void |
7404fe1b | 779 | relocate_relocs( |
6a74a719 ILT |
780 | const Relocate_info<size, big_endian>* relinfo, |
781 | const unsigned char* prelocs, | |
782 | size_t reloc_count, | |
783 | Output_section* output_section, | |
62fe925a | 784 | typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section, |
6a74a719 | 785 | unsigned char* view, |
6be6f3bd | 786 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, |
5c388529 | 787 | section_size_type view_size, |
6a74a719 ILT |
788 | unsigned char* reloc_view, |
789 | section_size_type reloc_view_size) | |
790 | { | |
ef9beddf | 791 | typedef typename elfcpp::Elf_types<size>::Elf_Addr Address; |
4d625b70 CC |
792 | typedef typename Classify_reloc::Reltype Reltype; |
793 | typedef typename Classify_reloc::Reltype_write Reltype_write; | |
794 | const int reloc_size = Classify_reloc::reloc_size; | |
eff45813 | 795 | const Address invalid_address = static_cast<Address>(0) - 1; |
6a74a719 | 796 | |
6fa2a40b | 797 | Sized_relobj_file<size, big_endian>* const object = relinfo->object; |
6a74a719 ILT |
798 | const unsigned int local_count = object->local_symbol_count(); |
799 | ||
800 | unsigned char* pwrite = reloc_view; | |
801 | ||
033bfb73 CC |
802 | const bool relocatable = parameters->options().relocatable(); |
803 | ||
6a74a719 ILT |
804 | for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size) |
805 | { | |
91a65d2f | 806 | Relocatable_relocs::Reloc_strategy strategy = relinfo->rr->strategy(i); |
6a74a719 ILT |
807 | if (strategy == Relocatable_relocs::RELOC_DISCARD) |
808 | continue; | |
809 | ||
5c388529 DK |
810 | if (strategy == Relocatable_relocs::RELOC_SPECIAL) |
811 | { | |
812 | // Target wants to handle this relocation. | |
813 | Sized_target<size, big_endian>* target = | |
814 | parameters->sized_target<size, big_endian>(); | |
4d625b70 CC |
815 | target->relocate_special_relocatable(relinfo, Classify_reloc::sh_type, |
816 | prelocs, i, output_section, | |
5c388529 DK |
817 | offset_in_output_section, |
818 | view, view_address, | |
819 | view_size, pwrite); | |
820 | pwrite += reloc_size; | |
821 | continue; | |
822 | } | |
6a74a719 ILT |
823 | Reltype reloc(prelocs); |
824 | Reltype_write reloc_write(pwrite); | |
825 | ||
4d625b70 | 826 | const unsigned int r_sym = Classify_reloc::get_r_sym(&reloc); |
6a74a719 ILT |
827 | |
828 | // Get the new symbol index. | |
829 | ||
9215b98b | 830 | Output_section* os = NULL; |
6a74a719 ILT |
831 | unsigned int new_symndx; |
832 | if (r_sym < local_count) | |
833 | { | |
834 | switch (strategy) | |
835 | { | |
836 | case Relocatable_relocs::RELOC_COPY: | |
818bf354 ILT |
837 | if (r_sym == 0) |
838 | new_symndx = 0; | |
839 | else | |
840 | { | |
841 | new_symndx = object->symtab_index(r_sym); | |
842 | gold_assert(new_symndx != -1U); | |
843 | } | |
6a74a719 ILT |
844 | break; |
845 | ||
846 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA: | |
7019cd25 | 847 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0: |
6a74a719 ILT |
848 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_1: |
849 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_2: | |
850 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_4: | |
851 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_8: | |
2c339f71 | 852 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_4_UNALIGNED: |
6a74a719 ILT |
853 | { |
854 | // We are adjusting a section symbol. We need to find | |
855 | // the symbol table index of the section symbol for | |
856 | // the output section corresponding to input section | |
857 | // in which this symbol is defined. | |
858 | gold_assert(r_sym < local_count); | |
d491d34e ILT |
859 | bool is_ordinary; |
860 | unsigned int shndx = | |
861 | object->local_symbol_input_shndx(r_sym, &is_ordinary); | |
862 | gold_assert(is_ordinary); | |
9215b98b | 863 | os = object->output_section(shndx); |
6a74a719 ILT |
864 | gold_assert(os != NULL); |
865 | gold_assert(os->needs_symtab_index()); | |
866 | new_symndx = os->symtab_index(); | |
867 | } | |
868 | break; | |
869 | ||
870 | default: | |
871 | gold_unreachable(); | |
872 | } | |
873 | } | |
874 | else | |
875 | { | |
876 | const Symbol* gsym = object->global_symbol(r_sym); | |
877 | gold_assert(gsym != NULL); | |
878 | if (gsym->is_forwarder()) | |
879 | gsym = relinfo->symtab->resolve_forwards(gsym); | |
880 | ||
881 | gold_assert(gsym->has_symtab_index()); | |
882 | new_symndx = gsym->symtab_index(); | |
883 | } | |
884 | ||
885 | // Get the new offset--the location in the output section where | |
886 | // this relocation should be applied. | |
887 | ||
ef9beddf ILT |
888 | Address offset = reloc.get_r_offset(); |
889 | Address new_offset; | |
eff45813 | 890 | if (offset_in_output_section != invalid_address) |
6a74a719 ILT |
891 | new_offset = offset + offset_in_output_section; |
892 | else | |
893 | { | |
ef9beddf ILT |
894 | section_offset_type sot_offset = |
895 | convert_types<section_offset_type, Address>(offset); | |
896 | section_offset_type new_sot_offset = | |
897 | output_section->output_offset(object, relinfo->data_shndx, | |
898 | sot_offset); | |
899 | gold_assert(new_sot_offset != -1); | |
900 | new_offset = new_sot_offset; | |
6a74a719 ILT |
901 | } |
902 | ||
6be6f3bd ILT |
903 | // In an object file, r_offset is an offset within the section. |
904 | // In an executable or dynamic object, generated by | |
905 | // --emit-relocs, r_offset is an absolute address. | |
033bfb73 | 906 | if (!relocatable) |
e09ad04a ILT |
907 | { |
908 | new_offset += view_address; | |
eff45813 | 909 | if (offset_in_output_section != invalid_address) |
e09ad04a ILT |
910 | new_offset -= offset_in_output_section; |
911 | } | |
6be6f3bd | 912 | |
6a74a719 | 913 | reloc_write.put_r_offset(new_offset); |
4d625b70 | 914 | Classify_reloc::put_r_info(&reloc_write, &reloc, new_symndx); |
6a74a719 ILT |
915 | |
916 | // Handle the reloc addend based on the strategy. | |
917 | ||
918 | if (strategy == Relocatable_relocs::RELOC_COPY) | |
919 | { | |
4d625b70 CC |
920 | if (Classify_reloc::sh_type == elfcpp::SHT_RELA) |
921 | Classify_reloc::put_r_addend(&reloc_write, | |
922 | Classify_reloc::get_r_addend(&reloc)); | |
6a74a719 ILT |
923 | } |
924 | else | |
925 | { | |
926 | // The relocation uses a section symbol in the input file. | |
927 | // We are adjusting it to use a section symbol in the output | |
928 | // file. The input section symbol refers to some address in | |
929 | // the input section. We need the relocation in the output | |
930 | // file to refer to that same address. This adjustment to | |
931 | // the addend is the same calculation we use for a simple | |
932 | // absolute relocation for the input section symbol. | |
933 | ||
934 | const Symbol_value<size>* psymval = object->local_symbol(r_sym); | |
935 | ||
936 | unsigned char* padd = view + offset; | |
937 | switch (strategy) | |
938 | { | |
939 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA: | |
940 | { | |
033bfb73 CC |
941 | typename elfcpp::Elf_types<size>::Elf_Swxword addend |
942 | = Classify_reloc::get_r_addend(&reloc); | |
943 | addend = psymval->value(object, addend); | |
944 | // In a relocatable link, the symbol value is relative to | |
945 | // the start of the output section. For a non-relocatable | |
946 | // link, we need to adjust the addend. | |
947 | if (!relocatable) | |
948 | { | |
949 | gold_assert(os != NULL); | |
950 | addend -= os->address(); | |
951 | } | |
4d625b70 | 952 | Classify_reloc::put_r_addend(&reloc_write, addend); |
6a74a719 ILT |
953 | } |
954 | break; | |
955 | ||
7019cd25 ILT |
956 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0: |
957 | break; | |
958 | ||
6a74a719 ILT |
959 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_1: |
960 | Relocate_functions<size, big_endian>::rel8(padd, object, | |
961 | psymval); | |
962 | break; | |
963 | ||
964 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_2: | |
965 | Relocate_functions<size, big_endian>::rel16(padd, object, | |
966 | psymval); | |
967 | break; | |
968 | ||
969 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_4: | |
970 | Relocate_functions<size, big_endian>::rel32(padd, object, | |
971 | psymval); | |
972 | break; | |
973 | ||
974 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_8: | |
975 | Relocate_functions<size, big_endian>::rel64(padd, object, | |
976 | psymval); | |
977 | break; | |
978 | ||
2c339f71 DK |
979 | case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_4_UNALIGNED: |
980 | Relocate_functions<size, big_endian>::rel32_unaligned(padd, | |
981 | object, | |
982 | psymval); | |
983 | break; | |
984 | ||
6a74a719 ILT |
985 | default: |
986 | gold_unreachable(); | |
987 | } | |
988 | } | |
989 | ||
990 | pwrite += reloc_size; | |
991 | } | |
992 | ||
993 | gold_assert(static_cast<section_size_type>(pwrite - reloc_view) | |
994 | == reloc_view_size); | |
995 | } | |
996 | ||
61ba1cf9 ILT |
997 | } // End namespace gold. |
998 | ||
999 | #endif // !defined(GOLD_TARGET_RELOC_H) |