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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
0e70b911 | 3 | // Copyright 2008, 2009, 2010 Free Software Foundation, Inc. |
f5314dd5 DM |
4 | // Written by David S. Miller <davem@davemloft.net>. |
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 | ||
23 | #include "gold.h" | |
24 | ||
25 | #include <cstdlib> | |
26 | #include <cstdio> | |
27 | #include <cstring> | |
28 | ||
29 | #include "elfcpp.h" | |
30 | #include "parameters.h" | |
31 | #include "reloc.h" | |
32 | #include "sparc.h" | |
33 | #include "object.h" | |
34 | #include "symtab.h" | |
35 | #include "layout.h" | |
36 | #include "output.h" | |
12c0daef | 37 | #include "copy-relocs.h" |
f5314dd5 DM |
38 | #include "target.h" |
39 | #include "target-reloc.h" | |
40 | #include "target-select.h" | |
41 | #include "tls.h" | |
42 | #include "errors.h" | |
f345227a | 43 | #include "gc.h" |
f5314dd5 DM |
44 | |
45 | namespace | |
46 | { | |
47 | ||
48 | using namespace gold; | |
49 | ||
50 | template<int size, bool big_endian> | |
51 | class Output_data_plt_sparc; | |
52 | ||
53 | template<int size, bool big_endian> | |
54 | class Target_sparc : public Sized_target<size, big_endian> | |
55 | { | |
56 | public: | |
57 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> Reloc_section; | |
58 | ||
59 | Target_sparc() | |
60 | : Sized_target<size, big_endian>(&sparc_info), | |
61 | got_(NULL), plt_(NULL), rela_dyn_(NULL), | |
12c0daef ILT |
62 | copy_relocs_(elfcpp::R_SPARC_COPY), dynbss_(NULL), |
63 | got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL) | |
f5314dd5 DM |
64 | { |
65 | } | |
66 | ||
6d03d481 ST |
67 | // Process the relocations to determine unreferenced sections for |
68 | // garbage collection. | |
69 | void | |
ad0f2072 | 70 | gc_process_relocs(Symbol_table* symtab, |
6d03d481 ST |
71 | Layout* layout, |
72 | Sized_relobj<size, big_endian>* object, | |
73 | unsigned int data_shndx, | |
74 | unsigned int sh_type, | |
75 | const unsigned char* prelocs, | |
76 | size_t reloc_count, | |
77 | Output_section* output_section, | |
78 | bool needs_special_offset_handling, | |
79 | size_t local_symbol_count, | |
80 | const unsigned char* plocal_symbols); | |
81 | ||
f5314dd5 DM |
82 | // Scan the relocations to look for symbol adjustments. |
83 | void | |
ad0f2072 | 84 | scan_relocs(Symbol_table* symtab, |
f5314dd5 DM |
85 | Layout* layout, |
86 | Sized_relobj<size, big_endian>* object, | |
87 | unsigned int data_shndx, | |
88 | unsigned int sh_type, | |
89 | const unsigned char* prelocs, | |
90 | size_t reloc_count, | |
91 | Output_section* output_section, | |
92 | bool needs_special_offset_handling, | |
93 | size_t local_symbol_count, | |
94 | const unsigned char* plocal_symbols); | |
95 | // Finalize the sections. | |
96 | void | |
f59f41f3 | 97 | do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); |
f5314dd5 DM |
98 | |
99 | // Return the value to use for a dynamic which requires special | |
100 | // treatment. | |
101 | uint64_t | |
102 | do_dynsym_value(const Symbol*) const; | |
103 | ||
104 | // Relocate a section. | |
105 | void | |
106 | relocate_section(const Relocate_info<size, big_endian>*, | |
107 | unsigned int sh_type, | |
108 | const unsigned char* prelocs, | |
109 | size_t reloc_count, | |
110 | Output_section* output_section, | |
111 | bool needs_special_offset_handling, | |
112 | unsigned char* view, | |
113 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
364c7fa5 ILT |
114 | section_size_type view_size, |
115 | const Reloc_symbol_changes*); | |
f5314dd5 DM |
116 | |
117 | // Scan the relocs during a relocatable link. | |
118 | void | |
ad0f2072 | 119 | scan_relocatable_relocs(Symbol_table* symtab, |
f5314dd5 DM |
120 | Layout* layout, |
121 | Sized_relobj<size, big_endian>* object, | |
122 | unsigned int data_shndx, | |
123 | unsigned int sh_type, | |
124 | const unsigned char* prelocs, | |
125 | size_t reloc_count, | |
126 | Output_section* output_section, | |
127 | bool needs_special_offset_handling, | |
128 | size_t local_symbol_count, | |
129 | const unsigned char* plocal_symbols, | |
130 | Relocatable_relocs*); | |
131 | ||
132 | // Relocate a section during a relocatable link. | |
133 | void | |
134 | relocate_for_relocatable(const Relocate_info<size, big_endian>*, | |
135 | unsigned int sh_type, | |
136 | const unsigned char* prelocs, | |
137 | size_t reloc_count, | |
138 | Output_section* output_section, | |
139 | off_t offset_in_output_section, | |
140 | const Relocatable_relocs*, | |
141 | unsigned char* view, | |
142 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
143 | section_size_type view_size, | |
144 | unsigned char* reloc_view, | |
145 | section_size_type reloc_view_size); | |
146 | // Return whether SYM is defined by the ABI. | |
147 | bool | |
9c2d0ef9 | 148 | do_is_defined_by_abi(const Symbol* sym) const |
f5314dd5 DM |
149 | { |
150 | // XXX Really need to support this better... | |
151 | if (sym->type() == elfcpp::STT_SPARC_REGISTER) | |
152 | return 1; | |
153 | ||
154 | return strcmp(sym->name(), "___tls_get_addr") == 0; | |
155 | } | |
156 | ||
9efe6174 ILT |
157 | // Return whether there is a GOT section. |
158 | bool | |
159 | has_got_section() const | |
160 | { return this->got_ != NULL; } | |
161 | ||
f5314dd5 DM |
162 | // Return the size of the GOT section. |
163 | section_size_type | |
0e70b911 | 164 | got_size() const |
f5314dd5 DM |
165 | { |
166 | gold_assert(this->got_ != NULL); | |
167 | return this->got_->data_size(); | |
168 | } | |
169 | ||
0e70b911 CC |
170 | // Return the number of entries in the GOT. |
171 | unsigned int | |
172 | got_entry_count() const | |
173 | { | |
174 | if (this->got_ == NULL) | |
175 | return 0; | |
176 | return this->got_size() / (size / 8); | |
177 | } | |
178 | ||
179 | // Return the number of entries in the PLT. | |
180 | unsigned int | |
181 | plt_entry_count() const; | |
182 | ||
183 | // Return the offset of the first non-reserved PLT entry. | |
184 | unsigned int | |
185 | first_plt_entry_offset() const; | |
186 | ||
187 | // Return the size of each PLT entry. | |
188 | unsigned int | |
189 | plt_entry_size() const; | |
190 | ||
f5314dd5 DM |
191 | private: |
192 | ||
193 | // The class which scans relocations. | |
32b769e1 | 194 | class Scan |
f5314dd5 | 195 | { |
32b769e1 DM |
196 | public: |
197 | Scan() | |
198 | : issued_non_pic_error_(false) | |
199 | { } | |
200 | ||
f5314dd5 | 201 | inline void |
ad0f2072 | 202 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
f5314dd5 DM |
203 | Sized_relobj<size, big_endian>* object, |
204 | unsigned int data_shndx, | |
205 | Output_section* output_section, | |
206 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
207 | const elfcpp::Sym<size, big_endian>& lsym); | |
208 | ||
209 | inline void | |
ad0f2072 | 210 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
f5314dd5 DM |
211 | Sized_relobj<size, big_endian>* object, |
212 | unsigned int data_shndx, | |
213 | Output_section* output_section, | |
214 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
215 | Symbol* gsym); | |
216 | ||
21bb3914 ST |
217 | inline bool |
218 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
219 | Target_sparc* , | |
220 | Sized_relobj<size, big_endian>* , | |
221 | unsigned int , | |
222 | Output_section* , | |
223 | const elfcpp::Rela<size, big_endian>& , | |
224 | unsigned int , | |
225 | const elfcpp::Sym<size, big_endian>&) | |
226 | { return false; } | |
227 | ||
228 | inline bool | |
229 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
230 | Target_sparc* , | |
231 | Sized_relobj<size, big_endian>* , | |
232 | unsigned int , | |
233 | Output_section* , | |
234 | const elfcpp::Rela<size, | |
235 | big_endian>& , | |
236 | unsigned int , Symbol*) | |
237 | { return false; } | |
238 | ||
239 | ||
32b769e1 | 240 | private: |
f5314dd5 DM |
241 | static void |
242 | unsupported_reloc_local(Sized_relobj<size, big_endian>*, | |
243 | unsigned int r_type); | |
244 | ||
245 | static void | |
246 | unsupported_reloc_global(Sized_relobj<size, big_endian>*, | |
247 | unsigned int r_type, Symbol*); | |
248 | ||
249 | static void | |
250 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
251 | Target_sparc* target); | |
32b769e1 DM |
252 | |
253 | void | |
254 | check_non_pic(Relobj*, unsigned int r_type); | |
255 | ||
256 | // Whether we have issued an error about a non-PIC compilation. | |
257 | bool issued_non_pic_error_; | |
f5314dd5 DM |
258 | }; |
259 | ||
260 | // The class which implements relocation. | |
261 | class Relocate | |
262 | { | |
263 | public: | |
264 | Relocate() | |
265 | : ignore_gd_add_(false) | |
266 | { } | |
267 | ||
268 | ~Relocate() | |
269 | { | |
270 | if (this->ignore_gd_add_) | |
271 | { | |
272 | // FIXME: This needs to specify the location somehow. | |
273 | gold_error(_("missing expected TLS relocation")); | |
274 | } | |
275 | } | |
276 | ||
277 | // Do a relocation. Return false if the caller should not issue | |
278 | // any warnings about this relocation. | |
279 | inline bool | |
280 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
281 | Output_section*, size_t relnum, |
282 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
283 | unsigned int r_type, const Sized_symbol<size>*, |
284 | const Symbol_value<size>*, | |
285 | unsigned char*, | |
286 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
287 | section_size_type); | |
288 | ||
289 | private: | |
290 | // Do a TLS relocation. | |
291 | inline void | |
292 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
293 | size_t relnum, const elfcpp::Rela<size, big_endian>&, | |
294 | unsigned int r_type, const Sized_symbol<size>*, | |
295 | const Symbol_value<size>*, | |
296 | unsigned char*, | |
297 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
298 | section_size_type); | |
299 | ||
300 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD | |
301 | bool ignore_gd_add_; | |
302 | }; | |
303 | ||
304 | // A class which returns the size required for a relocation type, | |
305 | // used while scanning relocs during a relocatable link. | |
306 | class Relocatable_size_for_reloc | |
307 | { | |
308 | public: | |
309 | unsigned int | |
310 | get_size_for_reloc(unsigned int, Relobj*); | |
311 | }; | |
312 | ||
313 | // Get the GOT section, creating it if necessary. | |
314 | Output_data_got<size, big_endian>* | |
315 | got_section(Symbol_table*, Layout*); | |
316 | ||
317 | // Create a PLT entry for a global symbol. | |
318 | void | |
319 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
320 | ||
321 | // Create a GOT entry for the TLS module index. | |
322 | unsigned int | |
323 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
324 | Sized_relobj<size, big_endian>* object); | |
325 | ||
326 | // Return the gsym for "__tls_get_addr". Cache if not already | |
327 | // cached. | |
328 | Symbol* | |
329 | tls_get_addr_sym(Symbol_table* symtab) | |
330 | { | |
331 | if (!this->tls_get_addr_sym_) | |
332 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
333 | gold_assert(this->tls_get_addr_sym_); | |
334 | return this->tls_get_addr_sym_; | |
335 | } | |
336 | ||
337 | // Get the PLT section. | |
338 | const Output_data_plt_sparc<size, big_endian>* | |
339 | plt_section() const | |
340 | { | |
341 | gold_assert(this->plt_ != NULL); | |
342 | return this->plt_; | |
343 | } | |
344 | ||
345 | // Get the dynamic reloc section, creating it if necessary. | |
346 | Reloc_section* | |
347 | rela_dyn_section(Layout*); | |
348 | ||
f5314dd5 DM |
349 | // Copy a relocation against a global symbol. |
350 | void | |
ef9beddf ILT |
351 | copy_reloc(Symbol_table* symtab, Layout* layout, |
352 | Sized_relobj<size, big_endian>* object, | |
12c0daef ILT |
353 | unsigned int shndx, Output_section* output_section, |
354 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
355 | { | |
356 | this->copy_relocs_.copy_reloc(symtab, layout, | |
357 | symtab->get_sized_symbol<size>(sym), | |
358 | object, shndx, output_section, | |
359 | reloc, this->rela_dyn_section(layout)); | |
360 | } | |
f5314dd5 DM |
361 | |
362 | // Information about this specific target which we pass to the | |
363 | // general Target structure. | |
364 | static Target::Target_info sparc_info; | |
365 | ||
366 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
367 | // These values are exposed to the ABI in an incremental link. |
368 | // Do not renumber existing values without changing the version | |
369 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
370 | enum Got_type |
371 | { | |
372 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
373 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
374 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
375 | }; | |
376 | ||
377 | // The GOT section. | |
378 | Output_data_got<size, big_endian>* got_; | |
379 | // The PLT section. | |
380 | Output_data_plt_sparc<size, big_endian>* plt_; | |
381 | // The dynamic reloc section. | |
382 | Reloc_section* rela_dyn_; | |
383 | // Relocs saved to avoid a COPY reloc. | |
12c0daef | 384 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
385 | // Space for variables copied with a COPY reloc. |
386 | Output_data_space* dynbss_; | |
387 | // Offset of the GOT entry for the TLS module index; | |
388 | unsigned int got_mod_index_offset_; | |
389 | // Cached pointer to __tls_get_addr symbol | |
390 | Symbol* tls_get_addr_sym_; | |
391 | }; | |
392 | ||
393 | template<> | |
394 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
395 | { | |
396 | 32, // size | |
397 | true, // is_big_endian | |
398 | elfcpp::EM_SPARC, // machine_code | |
399 | false, // has_make_symbol | |
400 | false, // has_resolve | |
401 | false, // has_code_fill | |
402 | true, // is_default_stack_executable | |
403 | '\0', // wrap_char | |
404 | "/usr/lib/ld.so.1", // dynamic_linker | |
405 | 0x00010000, // default_text_segment_address | |
406 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
407 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
408 | elfcpp::SHN_UNDEF, // small_common_shndx | |
409 | elfcpp::SHN_UNDEF, // large_common_shndx | |
410 | 0, // small_common_section_flags | |
05a352e6 DK |
411 | 0, // large_common_section_flags |
412 | NULL, // attributes_section | |
413 | NULL // attributes_vendor | |
f5314dd5 DM |
414 | }; |
415 | ||
416 | template<> | |
417 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
418 | { | |
419 | 64, // size | |
420 | true, // is_big_endian | |
421 | elfcpp::EM_SPARCV9, // machine_code | |
422 | false, // has_make_symbol | |
423 | false, // has_resolve | |
424 | false, // has_code_fill | |
425 | true, // is_default_stack_executable | |
426 | '\0', // wrap_char | |
427 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
428 | 0x100000, // default_text_segment_address | |
429 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
430 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
431 | elfcpp::SHN_UNDEF, // small_common_shndx | |
432 | elfcpp::SHN_UNDEF, // large_common_shndx | |
433 | 0, // small_common_section_flags | |
05a352e6 DK |
434 | 0, // large_common_section_flags |
435 | NULL, // attributes_section | |
436 | NULL // attributes_vendor | |
f5314dd5 DM |
437 | }; |
438 | ||
439 | // We have to take care here, even when operating in little-endian | |
440 | // mode, sparc instructions are still big endian. | |
441 | template<int size, bool big_endian> | |
442 | class Sparc_relocate_functions | |
443 | { | |
444 | private: | |
445 | // Do a simple relocation with the addend in the relocation. | |
446 | template<int valsize> | |
447 | static inline void | |
448 | rela(unsigned char* view, | |
449 | unsigned int right_shift, | |
450 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 451 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
452 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
453 | { | |
454 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
455 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
456 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 457 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
458 | |
459 | val &= ~dst_mask; | |
460 | reloc &= dst_mask; | |
461 | ||
462 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
463 | } | |
464 | ||
465 | // Do a simple relocation using a symbol value with the addend in | |
466 | // the relocation. | |
467 | template<int valsize> | |
468 | static inline void | |
469 | rela(unsigned char* view, | |
470 | unsigned int right_shift, | |
471 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
472 | const Sized_relobj<size, big_endian>* object, | |
473 | const Symbol_value<size>* psymval, | |
474 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
475 | { | |
476 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
477 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
478 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
479 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
480 | ||
481 | val &= ~dst_mask; | |
482 | reloc &= dst_mask; | |
483 | ||
484 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
485 | } | |
486 | ||
487 | // Do a simple relocation using a symbol value with the addend in | |
488 | // the relocation, unaligned. | |
489 | template<int valsize> | |
490 | static inline void | |
491 | rela_ua(unsigned char* view, | |
492 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
493 | const Sized_relobj<size, big_endian>* object, | |
494 | const Symbol_value<size>* psymval, | |
495 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
496 | { | |
497 | typedef typename elfcpp::Swap_unaligned<valsize, | |
498 | big_endian>::Valtype Valtype; | |
499 | unsigned char* wv = view; | |
500 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
501 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
502 | ||
503 | val &= ~dst_mask; | |
504 | reloc &= dst_mask; | |
505 | ||
506 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
507 | } | |
508 | ||
509 | // Do a simple PC relative relocation with a Symbol_value with the | |
510 | // addend in the relocation. | |
511 | template<int valsize> | |
512 | static inline void | |
513 | pcrela(unsigned char* view, | |
514 | unsigned int right_shift, | |
515 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
516 | const Sized_relobj<size, big_endian>* object, | |
517 | const Symbol_value<size>* psymval, | |
518 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
519 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
520 | { | |
521 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
522 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
523 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
524 | Valtype reloc = ((psymval->value(object, addend) - address) | |
525 | >> right_shift); | |
526 | ||
527 | val &= ~dst_mask; | |
528 | reloc &= dst_mask; | |
529 | ||
530 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
531 | } | |
532 | ||
533 | template<int valsize> | |
534 | static inline void | |
535 | pcrela_unaligned(unsigned char* view, | |
536 | const Sized_relobj<size, big_endian>* object, | |
537 | const Symbol_value<size>* psymval, | |
538 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
539 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
540 | { | |
541 | typedef typename elfcpp::Swap_unaligned<valsize, | |
542 | big_endian>::Valtype Valtype; | |
543 | unsigned char* wv = view; | |
544 | Valtype reloc = (psymval->value(object, addend) - address); | |
545 | ||
546 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
547 | } | |
548 | ||
549 | typedef Sparc_relocate_functions<size, big_endian> This; | |
550 | typedef Sparc_relocate_functions<size, true> This_insn; | |
551 | ||
552 | public: | |
553 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
554 | static inline void | |
555 | wdisp30(unsigned char* view, | |
556 | const Sized_relobj<size, big_endian>* object, | |
557 | const Symbol_value<size>* psymval, | |
558 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
559 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
560 | { | |
561 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
562 | psymval, addend, address); | |
563 | } | |
564 | ||
565 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
566 | static inline void | |
567 | wdisp22(unsigned char* view, | |
568 | const Sized_relobj<size, big_endian>* object, | |
569 | const Symbol_value<size>* psymval, | |
570 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
571 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
572 | { | |
573 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
574 | psymval, addend, address); | |
575 | } | |
576 | ||
577 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
578 | static inline void | |
579 | wdisp19(unsigned char* view, | |
580 | const Sized_relobj<size, big_endian>* object, | |
581 | const Symbol_value<size>* psymval, | |
582 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
583 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
584 | { | |
585 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
586 | psymval, addend, address); | |
587 | } | |
588 | ||
589 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
590 | static inline void | |
591 | wdisp16(unsigned char* view, | |
592 | const Sized_relobj<size, big_endian>* object, | |
593 | const Symbol_value<size>* psymval, | |
594 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
595 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
596 | { | |
597 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
598 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
599 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
600 | Valtype reloc = ((psymval->value(object, addend) - address) | |
601 | >> 2); | |
602 | ||
603 | // The relocation value is split between the low 14 bits, | |
604 | // and bits 20-21. | |
605 | val &= ~((0x3 << 20) | 0x3fff); | |
606 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
607 | | (reloc & 0x3ffff)); | |
608 | ||
609 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
610 | } | |
611 | ||
612 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 | |
613 | static inline void | |
614 | pc22(unsigned char* view, | |
615 | const Sized_relobj<size, big_endian>* object, | |
616 | const Symbol_value<size>* psymval, | |
617 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
618 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
619 | { | |
620 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
621 | psymval, addend, address); | |
622 | } | |
623 | ||
624 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
625 | static inline void | |
626 | pc10(unsigned char* view, | |
627 | const Sized_relobj<size, big_endian>* object, | |
628 | const Symbol_value<size>* psymval, | |
629 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
630 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
631 | { | |
632 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
633 | psymval, addend, address); | |
634 | } | |
635 | ||
636 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
637 | static inline void | |
638 | hi22(unsigned char* view, | |
2ea97941 | 639 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
640 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
641 | { | |
2ea97941 | 642 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
643 | } |
644 | ||
645 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
646 | static inline void | |
647 | hi22(unsigned char* view, | |
648 | const Sized_relobj<size, big_endian>* object, | |
649 | const Symbol_value<size>* psymval, | |
650 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
651 | { | |
652 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
653 | } | |
654 | ||
655 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
656 | static inline void | |
657 | pcplt22(unsigned char* view, | |
658 | const Sized_relobj<size, big_endian>* object, | |
659 | const Symbol_value<size>* psymval, | |
660 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
661 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
662 | { | |
663 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
664 | psymval, addend, address); | |
665 | } | |
666 | ||
667 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
668 | static inline void | |
669 | lo10(unsigned char* view, | |
2ea97941 | 670 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
671 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
672 | { | |
2ea97941 | 673 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
674 | } |
675 | ||
676 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
677 | static inline void | |
678 | lo10(unsigned char* view, | |
679 | const Sized_relobj<size, big_endian>* object, | |
680 | const Symbol_value<size>* psymval, | |
681 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
682 | { | |
683 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
684 | } | |
685 | ||
686 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
687 | static inline void | |
688 | lo10(unsigned char* view, | |
689 | const Sized_relobj<size, big_endian>* object, | |
690 | const Symbol_value<size>* psymval, | |
691 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
692 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
693 | { | |
694 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
695 | psymval, addend, address); | |
696 | } | |
697 | ||
698 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
699 | static inline void | |
700 | olo10(unsigned char* view, | |
701 | const Sized_relobj<size, big_endian>* object, | |
702 | const Symbol_value<size>* psymval, | |
703 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
704 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
705 | { | |
706 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
707 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
708 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
709 | Valtype reloc = psymval->value(object, addend); | |
710 | ||
711 | val &= ~0x1fff; | |
712 | reloc &= 0x3ff; | |
713 | reloc += addend2; | |
714 | reloc &= 0x1fff; | |
715 | ||
716 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
717 | } | |
718 | ||
719 | // R_SPARC_22: (Symbol + Addend) | |
720 | static inline void | |
721 | rela32_22(unsigned char* view, | |
722 | const Sized_relobj<size, big_endian>* object, | |
723 | const Symbol_value<size>* psymval, | |
724 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
725 | { | |
726 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
727 | } | |
728 | ||
729 | // R_SPARC_13: (Symbol + Addend) | |
730 | static inline void | |
731 | rela32_13(unsigned char* view, | |
2ea97941 | 732 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
733 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
734 | { | |
2ea97941 | 735 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
736 | } |
737 | ||
738 | // R_SPARC_13: (Symbol + Addend) | |
739 | static inline void | |
740 | rela32_13(unsigned char* view, | |
741 | const Sized_relobj<size, big_endian>* object, | |
742 | const Symbol_value<size>* psymval, | |
743 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
744 | { | |
745 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
746 | } | |
747 | ||
748 | // R_SPARC_UA16: (Symbol + Addend) | |
749 | static inline void | |
750 | ua16(unsigned char* view, | |
751 | const Sized_relobj<size, big_endian>* object, | |
752 | const Symbol_value<size>* psymval, | |
753 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
754 | { | |
755 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
756 | } | |
757 | ||
758 | // R_SPARC_UA32: (Symbol + Addend) | |
759 | static inline void | |
760 | ua32(unsigned char* view, | |
761 | const Sized_relobj<size, big_endian>* object, | |
762 | const Symbol_value<size>* psymval, | |
763 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
764 | { | |
765 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
766 | } | |
767 | ||
768 | // R_SPARC_UA64: (Symbol + Addend) | |
769 | static inline void | |
770 | ua64(unsigned char* view, | |
771 | const Sized_relobj<size, big_endian>* object, | |
772 | const Symbol_value<size>* psymval, | |
773 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
774 | { | |
775 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
776 | object, psymval, addend); | |
777 | } | |
778 | ||
779 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
780 | static inline void | |
781 | disp8(unsigned char* view, | |
782 | const Sized_relobj<size, big_endian>* object, | |
783 | const Symbol_value<size>* psymval, | |
784 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
785 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
786 | { | |
787 | This::template pcrela_unaligned<8>(view, object, psymval, | |
788 | addend, address); | |
789 | } | |
790 | ||
791 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
792 | static inline void | |
793 | disp16(unsigned char* view, | |
794 | const Sized_relobj<size, big_endian>* object, | |
795 | const Symbol_value<size>* psymval, | |
796 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
797 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
798 | { | |
799 | This::template pcrela_unaligned<16>(view, object, psymval, | |
800 | addend, address); | |
801 | } | |
802 | ||
803 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
804 | static inline void | |
805 | disp32(unsigned char* view, | |
806 | const Sized_relobj<size, big_endian>* object, | |
807 | const Symbol_value<size>* psymval, | |
808 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
809 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
810 | { | |
811 | This::template pcrela_unaligned<32>(view, object, psymval, | |
812 | addend, address); | |
813 | } | |
814 | ||
815 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
816 | static inline void | |
817 | disp64(unsigned char* view, | |
818 | const Sized_relobj<size, big_endian>* object, | |
819 | const Symbol_value<size>* psymval, | |
820 | elfcpp::Elf_Xword addend, | |
821 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
822 | { | |
823 | This::template pcrela_unaligned<64>(view, object, psymval, | |
824 | addend, address); | |
825 | } | |
826 | ||
827 | // R_SPARC_H44: (Symbol + Addend) >> 22 | |
828 | static inline void | |
829 | h44(unsigned char* view, | |
830 | const Sized_relobj<size, big_endian>* object, | |
831 | const Symbol_value<size>* psymval, | |
832 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
833 | { | |
834 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
835 | } | |
836 | ||
837 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
838 | static inline void | |
839 | m44(unsigned char* view, | |
840 | const Sized_relobj<size, big_endian>* object, | |
841 | const Symbol_value<size>* psymval, | |
842 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
843 | { | |
844 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
845 | } | |
846 | ||
847 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
848 | static inline void | |
849 | l44(unsigned char* view, | |
850 | const Sized_relobj<size, big_endian>* object, | |
851 | const Symbol_value<size>* psymval, | |
852 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
853 | { | |
854 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
855 | } | |
856 | ||
857 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
858 | static inline void | |
859 | hh22(unsigned char* view, | |
860 | const Sized_relobj<size, big_endian>* object, | |
861 | const Symbol_value<size>* psymval, | |
862 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
863 | { | |
864 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
865 | } | |
866 | ||
867 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
868 | static inline void | |
869 | pc_hh22(unsigned char* view, | |
870 | const Sized_relobj<size, big_endian>* object, | |
871 | const Symbol_value<size>* psymval, | |
872 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
873 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
874 | { | |
875 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
876 | psymval, addend, address); | |
877 | } | |
878 | ||
879 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
880 | static inline void | |
881 | hm10(unsigned char* view, | |
882 | const Sized_relobj<size, big_endian>* object, | |
883 | const Symbol_value<size>* psymval, | |
884 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
885 | { | |
886 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
887 | } | |
888 | ||
889 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
890 | static inline void | |
891 | pc_hm10(unsigned char* view, | |
892 | const Sized_relobj<size, big_endian>* object, | |
893 | const Symbol_value<size>* psymval, | |
894 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
895 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
896 | { | |
897 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
898 | psymval, addend, address); | |
899 | } | |
900 | ||
901 | // R_SPARC_11: (Symbol + Addend) | |
902 | static inline void | |
903 | rela32_11(unsigned char* view, | |
904 | const Sized_relobj<size, big_endian>* object, | |
905 | const Symbol_value<size>* psymval, | |
906 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
907 | { | |
908 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
909 | } | |
910 | ||
911 | // R_SPARC_10: (Symbol + Addend) | |
912 | static inline void | |
913 | rela32_10(unsigned char* view, | |
914 | const Sized_relobj<size, big_endian>* object, | |
915 | const Symbol_value<size>* psymval, | |
916 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
917 | { | |
918 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
919 | } | |
920 | ||
921 | // R_SPARC_7: (Symbol + Addend) | |
922 | static inline void | |
923 | rela32_7(unsigned char* view, | |
924 | const Sized_relobj<size, big_endian>* object, | |
925 | const Symbol_value<size>* psymval, | |
926 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
927 | { | |
928 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
929 | } | |
930 | ||
931 | // R_SPARC_6: (Symbol + Addend) | |
932 | static inline void | |
933 | rela32_6(unsigned char* view, | |
934 | const Sized_relobj<size, big_endian>* object, | |
935 | const Symbol_value<size>* psymval, | |
936 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
937 | { | |
938 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
939 | } | |
940 | ||
941 | // R_SPARC_5: (Symbol + Addend) | |
942 | static inline void | |
943 | rela32_5(unsigned char* view, | |
944 | const Sized_relobj<size, big_endian>* object, | |
945 | const Symbol_value<size>* psymval, | |
946 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
947 | { | |
948 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
949 | } | |
950 | ||
951 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
952 | static inline void | |
953 | ldo_hix22(unsigned char* view, | |
2ea97941 | 954 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
955 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
956 | { | |
2ea97941 | 957 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
958 | } |
959 | ||
960 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
961 | static inline void | |
962 | ldo_lox10(unsigned char* view, | |
2ea97941 | 963 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
964 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
965 | { | |
966 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
967 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
968 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 969 | Valtype reloc = (value + addend); |
f5314dd5 DM |
970 | |
971 | val &= ~0x1fff; | |
972 | reloc &= 0x3ff; | |
973 | ||
974 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
975 | } | |
976 | ||
977 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
978 | static inline void | |
979 | hix22(unsigned char* view, | |
2ea97941 | 980 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
981 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
982 | { | |
983 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
984 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
985 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 986 | Valtype reloc = (value + addend); |
f5314dd5 DM |
987 | |
988 | val &= ~0x3fffff; | |
989 | ||
990 | reloc ^= ~(Valtype)0; | |
991 | reloc >>= 10; | |
992 | ||
993 | reloc &= 0x3fffff; | |
994 | ||
995 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
996 | } | |
997 | ||
998 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
999 | static inline void | |
1000 | hix22(unsigned char* view, | |
1001 | const Sized_relobj<size, big_endian>* object, | |
1002 | const Symbol_value<size>* psymval, | |
1003 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1004 | { | |
1005 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1006 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1007 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1008 | Valtype reloc = psymval->value(object, addend); | |
1009 | ||
1010 | val &= ~0x3fffff; | |
1011 | ||
1012 | reloc ^= ~(Valtype)0; | |
1013 | reloc >>= 10; | |
1014 | ||
1015 | reloc &= 0x3fffff; | |
1016 | ||
1017 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1018 | } | |
1019 | ||
1020 | ||
1021 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1022 | static inline void | |
1023 | lox10(unsigned char* view, | |
2ea97941 | 1024 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1025 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1026 | { | |
1027 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1028 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1029 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1030 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1031 | |
1032 | val &= ~0x1fff; | |
1033 | reloc &= 0x3ff; | |
1034 | reloc |= 0x1c00; | |
1035 | ||
1036 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1037 | } | |
1038 | ||
1039 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 | |
1040 | static inline void | |
1041 | lox10(unsigned char* view, | |
1042 | const Sized_relobj<size, big_endian>* object, | |
1043 | const Symbol_value<size>* psymval, | |
1044 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1045 | { | |
1046 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1047 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1048 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1049 | Valtype reloc = psymval->value(object, addend); | |
1050 | ||
1051 | val &= ~0x1fff; | |
1052 | reloc &= 0x3ff; | |
1053 | reloc |= 0x1c00; | |
1054 | ||
1055 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1056 | } | |
1057 | }; | |
1058 | ||
1059 | // Get the GOT section, creating it if necessary. | |
1060 | ||
1061 | template<int size, bool big_endian> | |
1062 | Output_data_got<size, big_endian>* | |
1063 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1064 | Layout* layout) | |
1065 | { | |
1066 | if (this->got_ == NULL) | |
1067 | { | |
1068 | gold_assert(symtab != NULL && layout != NULL); | |
1069 | ||
1070 | this->got_ = new Output_data_got<size, big_endian>(); | |
1071 | ||
82742395 ILT |
1072 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1073 | (elfcpp::SHF_ALLOC | |
1074 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1075 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1076 | |
1077 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1078 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1079 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1080 | this->got_, |
1081 | 0, 0, elfcpp::STT_OBJECT, | |
1082 | elfcpp::STB_LOCAL, | |
1083 | elfcpp::STV_HIDDEN, 0, | |
1084 | false, false); | |
1085 | } | |
1086 | ||
1087 | return this->got_; | |
1088 | } | |
1089 | ||
1090 | // Get the dynamic reloc section, creating it if necessary. | |
1091 | ||
1092 | template<int size, bool big_endian> | |
1093 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1094 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1095 | { | |
1096 | if (this->rela_dyn_ == NULL) | |
1097 | { | |
1098 | gold_assert(layout != NULL); | |
d98bc257 | 1099 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1100 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1101 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1102 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1103 | } |
1104 | return this->rela_dyn_; | |
1105 | } | |
1106 | ||
1107 | // A class to handle the PLT data. | |
1108 | ||
1109 | template<int size, bool big_endian> | |
1110 | class Output_data_plt_sparc : public Output_section_data | |
1111 | { | |
1112 | public: | |
1113 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1114 | size, big_endian> Reloc_section; | |
1115 | ||
1116 | Output_data_plt_sparc(Layout*); | |
1117 | ||
1118 | // Add an entry to the PLT. | |
1119 | void add_entry(Symbol* gsym); | |
1120 | ||
1121 | // Return the .rela.plt section data. | |
1122 | const Reloc_section* rel_plt() const | |
1123 | { | |
1124 | return this->rel_; | |
1125 | } | |
1126 | ||
0e70b911 CC |
1127 | // Return the number of PLT entries. |
1128 | unsigned int | |
1129 | entry_count() const | |
1130 | { return this->count_; } | |
1131 | ||
1132 | // Return the offset of the first non-reserved PLT entry. | |
1133 | static unsigned int | |
1134 | first_plt_entry_offset() | |
1135 | { return 4 * base_plt_entry_size; } | |
1136 | ||
1137 | // Return the size of a PLT entry. | |
1138 | static unsigned int | |
1139 | get_plt_entry_size() | |
1140 | { return base_plt_entry_size; } | |
1141 | ||
f5314dd5 DM |
1142 | protected: |
1143 | void do_adjust_output_section(Output_section* os); | |
1144 | ||
7d9e3d98 ILT |
1145 | // Write to a map file. |
1146 | void | |
1147 | do_print_to_mapfile(Mapfile* mapfile) const | |
1148 | { mapfile->print_output_data(this, _("** PLT")); } | |
1149 | ||
f5314dd5 DM |
1150 | private: |
1151 | // The size of an entry in the PLT. | |
1152 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1153 | ||
1154 | static const unsigned int plt_entries_per_block = 160; | |
1155 | static const unsigned int plt_insn_chunk_size = 24; | |
1156 | static const unsigned int plt_pointer_chunk_size = 8; | |
1157 | static const unsigned int plt_block_size = | |
1158 | (plt_entries_per_block | |
1159 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1160 | ||
1161 | // Set the final size. | |
1162 | void | |
1163 | set_final_data_size() | |
1164 | { | |
1165 | unsigned int full_count = this->count_ + 4; | |
1166 | unsigned int extra = (size == 32 ? 4 : 0); | |
1167 | ||
1168 | if (size == 32 || full_count < 32768) | |
1169 | this->set_data_size((full_count * base_plt_entry_size) + extra); | |
1170 | else | |
1171 | { | |
1172 | unsigned int ext_cnt = full_count - 32768; | |
1173 | ||
1174 | this->set_data_size((32768 * base_plt_entry_size) | |
1175 | + (ext_cnt | |
1176 | * (plt_insn_chunk_size | |
1177 | + plt_pointer_chunk_size))); | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | // Write out the PLT data. | |
1182 | void | |
1183 | do_write(Output_file*); | |
1184 | ||
1185 | // The reloc section. | |
1186 | Reloc_section* rel_; | |
1187 | // The number of PLT entries. | |
1188 | unsigned int count_; | |
1189 | }; | |
1190 | ||
4f2a9edd ILT |
1191 | // Define the constants as required by C++ standard. |
1192 | ||
1193 | template<int size, bool big_endian> | |
1194 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1195 | ||
1196 | template<int size, bool big_endian> | |
1197 | const unsigned int | |
1198 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1199 | ||
1200 | template<int size, bool big_endian> | |
1201 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1202 | ||
1203 | template<int size, bool big_endian> | |
1204 | const unsigned int | |
1205 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1206 | ||
1207 | template<int size, bool big_endian> | |
1208 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1209 | ||
f5314dd5 DM |
1210 | // Create the PLT section. The ordinary .got section is an argument, |
1211 | // since we need to refer to the start. | |
1212 | ||
1213 | template<int size, bool big_endian> | |
1214 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
1215 | : Output_section_data(size == 32 ? 4 : 8), count_(0) | |
1216 | { | |
d98bc257 | 1217 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1218 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1219 | elfcpp::SHF_ALLOC, this->rel_, |
1220 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1221 | } |
1222 | ||
1223 | template<int size, bool big_endian> | |
1224 | void | |
1225 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1226 | { | |
1227 | os->set_entsize(0); | |
1228 | } | |
1229 | ||
1230 | // Add an entry to the PLT. | |
1231 | ||
1232 | template<int size, bool big_endian> | |
1233 | void | |
1234 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol* gsym) | |
1235 | { | |
1236 | gold_assert(!gsym->has_plt_offset()); | |
1237 | ||
1238 | unsigned int index = this->count_ + 4; | |
1239 | section_offset_type plt_offset; | |
1240 | ||
1241 | if (size == 32 || index < 32768) | |
1242 | plt_offset = index * base_plt_entry_size; | |
1243 | else | |
1244 | { | |
1245 | unsigned int ext_index = index - 32768; | |
1246 | ||
1247 | plt_offset = (32768 * base_plt_entry_size) | |
1248 | + ((ext_index / plt_entries_per_block) | |
1249 | * plt_block_size) | |
1250 | + ((ext_index % plt_entries_per_block) | |
1251 | * plt_insn_chunk_size); | |
1252 | } | |
1253 | ||
1254 | gsym->set_plt_offset(plt_offset); | |
1255 | ||
1256 | ++this->count_; | |
1257 | ||
1258 | // Every PLT entry needs a reloc. | |
1259 | gsym->set_needs_dynsym_entry(); | |
1260 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1261 | plt_offset, 0); | |
1262 | ||
1263 | // Note that we don't need to save the symbol. The contents of the | |
1264 | // PLT are independent of which symbols are used. The symbols only | |
1265 | // appear in the relocations. | |
1266 | } | |
1267 | ||
1268 | static const unsigned int sparc_nop = 0x01000000; | |
1269 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1270 | static const unsigned int sparc_branch_always = 0x30800000; | |
1271 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1272 | static const unsigned int sparc_mov = 0x80100000; | |
1273 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1274 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1275 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1276 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1277 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1278 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1279 | ||
1280 | // Write out the PLT. | |
1281 | ||
1282 | template<int size, bool big_endian> | |
1283 | void | |
1284 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1285 | { | |
2ea97941 | 1286 | const off_t offset = this->offset(); |
f5314dd5 DM |
1287 | const section_size_type oview_size = |
1288 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1289 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1290 | unsigned char* pov = oview; |
1291 | ||
1292 | memset(pov, 0, base_plt_entry_size * 4); | |
1293 | pov += base_plt_entry_size * 4; | |
1294 | ||
1295 | unsigned int plt_offset = base_plt_entry_size * 4; | |
1296 | const unsigned int count = this->count_; | |
1297 | ||
1298 | if (size == 64) | |
1299 | { | |
1300 | unsigned int limit; | |
1301 | ||
1302 | limit = (count > 32768 ? 32768 : count); | |
1303 | ||
1304 | for (unsigned int i = 0; i < limit; ++i) | |
1305 | { | |
1306 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1307 | sparc_sethi_g1 + plt_offset); | |
1308 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1309 | sparc_branch_always_pt + | |
1310 | (((base_plt_entry_size - | |
1311 | (plt_offset + 4)) >> 2) & | |
1312 | 0x7ffff)); | |
1313 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1314 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1315 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1316 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1317 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1318 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1319 | ||
1320 | pov += base_plt_entry_size; | |
1321 | plt_offset += base_plt_entry_size; | |
1322 | } | |
1323 | ||
1324 | if (count > 32768) | |
1325 | { | |
1326 | unsigned int ext_cnt = count - 32768; | |
1327 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1328 | ||
1329 | for (unsigned int i = 0; i < blks; ++i) | |
1330 | { | |
1331 | unsigned int data_off = (plt_entries_per_block | |
1332 | * plt_insn_chunk_size) - 4; | |
1333 | ||
1334 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1335 | { | |
1336 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1337 | sparc_mov_o7_g5); | |
1338 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1339 | sparc_call_plus_8); | |
1340 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1341 | sparc_nop); | |
1342 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1343 | sparc_ldx_o7_imm_g1 + | |
1344 | (data_off & 0x1fff)); | |
1345 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1346 | sparc_jmpl_o7_g1_g1); | |
1347 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1348 | sparc_mov_g5_o7); | |
1349 | ||
1350 | elfcpp::Swap<64, big_endian>::writeval( | |
1351 | pov + 0x4 + data_off, | |
1352 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1353 | ||
1354 | pov += plt_insn_chunk_size; | |
1355 | data_off -= 16; | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1360 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1361 | { | |
1362 | unsigned int data_off = (sub_blk_cnt | |
1363 | * plt_insn_chunk_size) - 4; | |
1364 | ||
1365 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1366 | { | |
1367 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1368 | sparc_mov_o7_g5); | |
1369 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1370 | sparc_call_plus_8); | |
1371 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1372 | sparc_nop); | |
1373 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1374 | sparc_ldx_o7_imm_g1 + | |
1375 | (data_off & 0x1fff)); | |
1376 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1377 | sparc_jmpl_o7_g1_g1); | |
1378 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1379 | sparc_mov_g5_o7); | |
1380 | ||
1381 | elfcpp::Swap<64, big_endian>::writeval( | |
1382 | pov + 0x4 + data_off, | |
1383 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1384 | ||
1385 | pov += plt_insn_chunk_size; | |
1386 | data_off -= 16; | |
1387 | } | |
1388 | } | |
1389 | } | |
1390 | } | |
1391 | else | |
1392 | { | |
1393 | for (unsigned int i = 0; i < count; ++i) | |
1394 | { | |
1395 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1396 | sparc_sethi_g1 + plt_offset); | |
1397 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1398 | sparc_branch_always + | |
1399 | (((- (plt_offset + 4)) >> 2) & | |
1400 | 0x003fffff)); | |
1401 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1402 | ||
1403 | pov += base_plt_entry_size; | |
1404 | plt_offset += base_plt_entry_size; | |
1405 | } | |
1406 | ||
1407 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1408 | pov += 4; | |
1409 | } | |
1410 | ||
1411 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1412 | ||
2ea97941 | 1413 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1414 | } |
1415 | ||
1416 | // Create a PLT entry for a global symbol. | |
1417 | ||
1418 | template<int size, bool big_endian> | |
1419 | void | |
1420 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1421 | Layout* layout, | |
1422 | Symbol* gsym) | |
1423 | { | |
1424 | if (gsym->has_plt_offset()) | |
1425 | return; | |
1426 | ||
1427 | if (this->plt_ == NULL) | |
1428 | { | |
1429 | // Create the GOT sections first. | |
1430 | this->got_section(symtab, layout); | |
1431 | ||
612a8d3d DM |
1432 | // Ensure that .rela.dyn always appears before .rela.plt This is |
1433 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1434 | // needs to include .rela.plt in it's range. | |
1435 | this->rela_dyn_section(layout); | |
1436 | ||
f5314dd5 DM |
1437 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); |
1438 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1439 | (elfcpp::SHF_ALLOC | |
1440 | | elfcpp::SHF_EXECINSTR | |
1441 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1442 | this->plt_, ORDER_PLT, false); |
f5314dd5 DM |
1443 | |
1444 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1445 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
99fff23b | 1446 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1447 | this->plt_, |
1448 | 0, 0, elfcpp::STT_OBJECT, | |
1449 | elfcpp::STB_LOCAL, | |
1450 | elfcpp::STV_HIDDEN, 0, | |
1451 | false, false); | |
1452 | } | |
1453 | ||
1454 | this->plt_->add_entry(gsym); | |
1455 | } | |
1456 | ||
0e70b911 CC |
1457 | // Return the number of entries in the PLT. |
1458 | ||
1459 | template<int size, bool big_endian> | |
1460 | unsigned int | |
1461 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1462 | { | |
1463 | if (this->plt_ == NULL) | |
1464 | return 0; | |
1465 | return this->plt_->entry_count(); | |
1466 | } | |
1467 | ||
1468 | // Return the offset of the first non-reserved PLT entry. | |
1469 | ||
1470 | template<int size, bool big_endian> | |
1471 | unsigned int | |
1472 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1473 | { | |
1474 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1475 | } | |
1476 | ||
1477 | // Return the size of each PLT entry. | |
1478 | ||
1479 | template<int size, bool big_endian> | |
1480 | unsigned int | |
1481 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1482 | { | |
1483 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1484 | } | |
1485 | ||
f5314dd5 DM |
1486 | // Create a GOT entry for the TLS module index. |
1487 | ||
1488 | template<int size, bool big_endian> | |
1489 | unsigned int | |
1490 | Target_sparc<size, big_endian>::got_mod_index_entry(Symbol_table* symtab, | |
1491 | Layout* layout, | |
1492 | Sized_relobj<size, big_endian>* object) | |
1493 | { | |
1494 | if (this->got_mod_index_offset_ == -1U) | |
1495 | { | |
1496 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1497 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1498 | Output_data_got<size, big_endian>* got; | |
1499 | unsigned int got_offset; | |
1500 | ||
1501 | got = this->got_section(symtab, layout); | |
1502 | got_offset = got->add_constant(0); | |
1503 | rela_dyn->add_local(object, 0, | |
1504 | (size == 64 ? | |
1505 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1506 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1507 | got_offset, 0); | |
1508 | got->add_constant(0); | |
1509 | this->got_mod_index_offset_ = got_offset; | |
1510 | } | |
1511 | return this->got_mod_index_offset_; | |
1512 | } | |
1513 | ||
f5314dd5 DM |
1514 | // Optimize the TLS relocation type based on what we know about the |
1515 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1516 | // known at link time. | |
1517 | ||
1518 | static tls::Tls_optimization | |
1519 | optimize_tls_reloc(bool is_final, int r_type) | |
1520 | { | |
1521 | // If we are generating a shared library, then we can't do anything | |
1522 | // in the linker. | |
1523 | if (parameters->options().shared()) | |
1524 | return tls::TLSOPT_NONE; | |
1525 | ||
1526 | switch (r_type) | |
1527 | { | |
1528 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1529 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1530 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1531 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1532 | // These are General-Dynamic which permits fully general TLS | |
1533 | // access. Since we know that we are generating an executable, | |
1534 | // we can convert this to Initial-Exec. If we also know that | |
1535 | // this is a local symbol, we can further switch to Local-Exec. | |
1536 | if (is_final) | |
1537 | return tls::TLSOPT_TO_LE; | |
1538 | return tls::TLSOPT_TO_IE; | |
1539 | ||
1540 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1541 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1542 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1543 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1544 | // This is Local-Dynamic, which refers to a local symbol in the | |
1545 | // dynamic TLS block. Since we know that we generating an | |
1546 | // executable, we can switch to Local-Exec. | |
1547 | return tls::TLSOPT_TO_LE; | |
1548 | ||
1549 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1550 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1551 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1552 | // Another type of Local-Dynamic relocation. | |
1553 | return tls::TLSOPT_TO_LE; | |
1554 | ||
1555 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1556 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1557 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1558 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1559 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1560 | // These are Initial-Exec relocs which get the thread offset |
1561 | // from the GOT. If we know that we are linking against the | |
1562 | // local symbol, we can switch to Local-Exec, which links the | |
1563 | // thread offset into the instruction. | |
1564 | if (is_final) | |
1565 | return tls::TLSOPT_TO_LE; | |
1566 | return tls::TLSOPT_NONE; | |
1567 | ||
1568 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1569 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1570 | // When we already have Local-Exec, there is nothing further we | |
1571 | // can do. | |
1572 | return tls::TLSOPT_NONE; | |
1573 | ||
1574 | default: | |
1575 | gold_unreachable(); | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | // Generate a PLT entry slot for a call to __tls_get_addr | |
1580 | template<int size, bool big_endian> | |
1581 | void | |
1582 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
1583 | Layout* layout, | |
1584 | Target_sparc<size, big_endian>* target) | |
1585 | { | |
1586 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
1587 | ||
1588 | target->make_plt_entry(symtab, layout, gsym); | |
1589 | } | |
1590 | ||
1591 | // Report an unsupported relocation against a local symbol. | |
1592 | ||
1593 | template<int size, bool big_endian> | |
1594 | void | |
1595 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
1596 | Sized_relobj<size, big_endian>* object, | |
1597 | unsigned int r_type) | |
1598 | { | |
1599 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
1600 | object->name().c_str(), r_type); | |
1601 | } | |
1602 | ||
32b769e1 DM |
1603 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
1604 | // dynamic linker does not support it, issue an error. | |
1605 | ||
1606 | template<int size, bool big_endian> | |
1607 | void | |
1608 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
1609 | { | |
1610 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
1611 | ||
1612 | if (size == 64) | |
1613 | { | |
1614 | switch (r_type) | |
1615 | { | |
1616 | // These are the relocation types supported by glibc for sparc 64-bit. | |
1617 | case elfcpp::R_SPARC_RELATIVE: | |
1618 | case elfcpp::R_SPARC_COPY: | |
1619 | case elfcpp::R_SPARC_64: | |
1620 | case elfcpp::R_SPARC_GLOB_DAT: | |
1621 | case elfcpp::R_SPARC_JMP_SLOT: | |
1622 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1623 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1624 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1625 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1626 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1627 | case elfcpp::R_SPARC_8: | |
1628 | case elfcpp::R_SPARC_16: | |
1629 | case elfcpp::R_SPARC_DISP8: | |
1630 | case elfcpp::R_SPARC_DISP16: | |
1631 | case elfcpp::R_SPARC_DISP32: | |
1632 | case elfcpp::R_SPARC_WDISP30: | |
1633 | case elfcpp::R_SPARC_LO10: | |
1634 | case elfcpp::R_SPARC_HI22: | |
1635 | case elfcpp::R_SPARC_OLO10: | |
1636 | case elfcpp::R_SPARC_H44: | |
1637 | case elfcpp::R_SPARC_M44: | |
1638 | case elfcpp::R_SPARC_L44: | |
1639 | case elfcpp::R_SPARC_HH22: | |
1640 | case elfcpp::R_SPARC_HM10: | |
1641 | case elfcpp::R_SPARC_LM22: | |
1642 | case elfcpp::R_SPARC_UA16: | |
1643 | case elfcpp::R_SPARC_UA32: | |
1644 | case elfcpp::R_SPARC_UA64: | |
1645 | return; | |
1646 | ||
1647 | default: | |
1648 | break; | |
1649 | } | |
1650 | } | |
1651 | else | |
1652 | { | |
1653 | switch (r_type) | |
1654 | { | |
1655 | // These are the relocation types supported by glibc for sparc 32-bit. | |
1656 | case elfcpp::R_SPARC_RELATIVE: | |
1657 | case elfcpp::R_SPARC_COPY: | |
1658 | case elfcpp::R_SPARC_GLOB_DAT: | |
1659 | case elfcpp::R_SPARC_32: | |
1660 | case elfcpp::R_SPARC_JMP_SLOT: | |
1661 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1662 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1663 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1664 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1665 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1666 | case elfcpp::R_SPARC_8: | |
1667 | case elfcpp::R_SPARC_16: | |
1668 | case elfcpp::R_SPARC_DISP8: | |
1669 | case elfcpp::R_SPARC_DISP16: | |
1670 | case elfcpp::R_SPARC_DISP32: | |
1671 | case elfcpp::R_SPARC_LO10: | |
1672 | case elfcpp::R_SPARC_WDISP30: | |
1673 | case elfcpp::R_SPARC_HI22: | |
1674 | case elfcpp::R_SPARC_UA16: | |
1675 | case elfcpp::R_SPARC_UA32: | |
1676 | return; | |
1677 | ||
1678 | default: | |
1679 | break; | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | // This prevents us from issuing more than one error per reloc | |
1684 | // section. But we can still wind up issuing more than one | |
1685 | // error per object file. | |
1686 | if (this->issued_non_pic_error_) | |
1687 | return; | |
33aea2fd | 1688 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
1689 | object->error(_("requires unsupported dynamic reloc; " |
1690 | "recompile with -fPIC")); | |
1691 | this->issued_non_pic_error_ = true; | |
1692 | return; | |
1693 | } | |
1694 | ||
f5314dd5 DM |
1695 | // Scan a relocation for a local symbol. |
1696 | ||
1697 | template<int size, bool big_endian> | |
1698 | inline void | |
1699 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
1700 | Symbol_table* symtab, |
1701 | Layout* layout, | |
1702 | Target_sparc<size, big_endian>* target, | |
1703 | Sized_relobj<size, big_endian>* object, | |
1704 | unsigned int data_shndx, | |
1705 | Output_section* output_section, | |
1706 | const elfcpp::Rela<size, big_endian>& reloc, | |
1707 | unsigned int r_type, | |
1708 | const elfcpp::Sym<size, big_endian>& lsym) | |
1709 | { | |
1710 | unsigned int orig_r_type = r_type; | |
1711 | ||
1712 | r_type &= 0xff; | |
1713 | switch (r_type) | |
1714 | { | |
1715 | case elfcpp::R_SPARC_NONE: | |
1716 | case elfcpp::R_SPARC_REGISTER: | |
1717 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1718 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1719 | break; | |
1720 | ||
1721 | case elfcpp::R_SPARC_64: | |
1722 | case elfcpp::R_SPARC_32: | |
1723 | // If building a shared library (or a position-independent | |
1724 | // executable), we need to create a dynamic relocation for | |
1725 | // this location. The relocation applied at link time will | |
1726 | // apply the link-time value, so we flag the location with | |
1727 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
1728 | // relocate it easily. | |
1729 | if (parameters->options().output_is_position_independent()) | |
1730 | { | |
1731 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1732 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1733 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
1734 | output_section, data_shndx, | |
1735 | reloc.get_r_offset(), | |
1736 | reloc.get_r_addend()); | |
1737 | } | |
1738 | break; | |
1739 | ||
1740 | case elfcpp::R_SPARC_HIX22: | |
1741 | case elfcpp::R_SPARC_LOX10: | |
1742 | case elfcpp::R_SPARC_H44: | |
1743 | case elfcpp::R_SPARC_M44: | |
1744 | case elfcpp::R_SPARC_L44: | |
1745 | case elfcpp::R_SPARC_HH22: | |
1746 | case elfcpp::R_SPARC_HM10: | |
1747 | case elfcpp::R_SPARC_LM22: | |
1748 | case elfcpp::R_SPARC_UA64: | |
1749 | case elfcpp::R_SPARC_UA32: | |
1750 | case elfcpp::R_SPARC_UA16: | |
1751 | case elfcpp::R_SPARC_HI22: | |
1752 | case elfcpp::R_SPARC_LO10: | |
1753 | case elfcpp::R_SPARC_OLO10: | |
1754 | case elfcpp::R_SPARC_16: | |
1755 | case elfcpp::R_SPARC_11: | |
1756 | case elfcpp::R_SPARC_10: | |
1757 | case elfcpp::R_SPARC_8: | |
1758 | case elfcpp::R_SPARC_7: | |
1759 | case elfcpp::R_SPARC_6: | |
1760 | case elfcpp::R_SPARC_5: | |
1761 | // If building a shared library (or a position-independent | |
1762 | // executable), we need to create a dynamic relocation for | |
1763 | // this location. | |
1764 | if (parameters->options().output_is_position_independent()) | |
1765 | { | |
1766 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
684b268a | 1767 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
32b769e1 DM |
1768 | |
1769 | check_non_pic(object, r_type); | |
f5314dd5 DM |
1770 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
1771 | { | |
f5314dd5 DM |
1772 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, |
1773 | data_shndx, reloc.get_r_offset(), | |
1774 | reloc.get_r_addend()); | |
1775 | } | |
1776 | else | |
1777 | { | |
f5314dd5 | 1778 | gold_assert(lsym.get_st_value() == 0); |
0da6fa6c DM |
1779 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
1780 | output_section, data_shndx, | |
1781 | reloc.get_r_offset(), | |
1782 | reloc.get_r_addend()); | |
f5314dd5 DM |
1783 | } |
1784 | } | |
1785 | break; | |
1786 | ||
1787 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 1788 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
1789 | case elfcpp::R_SPARC_WDISP22: |
1790 | case elfcpp::R_SPARC_WDISP19: | |
1791 | case elfcpp::R_SPARC_WDISP16: | |
1792 | case elfcpp::R_SPARC_DISP8: | |
1793 | case elfcpp::R_SPARC_DISP16: | |
1794 | case elfcpp::R_SPARC_DISP32: | |
1795 | case elfcpp::R_SPARC_DISP64: | |
1796 | case elfcpp::R_SPARC_PC10: | |
1797 | case elfcpp::R_SPARC_PC22: | |
1798 | break; | |
1799 | ||
024c4466 DM |
1800 | case elfcpp::R_SPARC_GOTDATA_OP: |
1801 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
1802 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
1803 | case elfcpp::R_SPARC_GOT10: |
1804 | case elfcpp::R_SPARC_GOT13: | |
1805 | case elfcpp::R_SPARC_GOT22: | |
1806 | { | |
1807 | // The symbol requires a GOT entry. | |
1808 | Output_data_got<size, big_endian>* got; | |
1809 | unsigned int r_sym; | |
1810 | ||
1811 | got = target->got_section(symtab, layout); | |
1812 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1813 | ||
1814 | // If we are generating a shared object, we need to add a | |
1815 | // dynamic relocation for this symbol's GOT entry. | |
1816 | if (parameters->options().output_is_position_independent()) | |
1817 | { | |
1818 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
1819 | { | |
1820 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1821 | unsigned int off; | |
1822 | ||
1823 | off = got->add_constant(0); | |
1824 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); | |
1825 | rela_dyn->add_local_relative(object, r_sym, | |
1826 | elfcpp::R_SPARC_RELATIVE, | |
1827 | got, off, 0); | |
1828 | } | |
1829 | } | |
1830 | else | |
1831 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
1832 | } | |
1833 | break; | |
1834 | ||
1835 | // These are initial TLS relocs, which are expected when | |
1836 | // linking. | |
1837 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1838 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1839 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1840 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1841 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
1842 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1843 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1844 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1845 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1846 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1847 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1848 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1849 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1850 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1851 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1852 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1853 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
1854 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1855 | { | |
1856 | bool output_is_shared = parameters->options().shared(); | |
1857 | const tls::Tls_optimization optimized_type | |
1858 | = optimize_tls_reloc(!output_is_shared, r_type); | |
1859 | switch (r_type) | |
1860 | { | |
1861 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1862 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1863 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1864 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1865 | if (optimized_type == tls::TLSOPT_NONE) | |
1866 | { | |
1867 | // Create a pair of GOT entries for the module index and | |
1868 | // dtv-relative offset. | |
1869 | Output_data_got<size, big_endian>* got | |
1870 | = target->got_section(symtab, layout); | |
1871 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
1872 | unsigned int shndx = lsym.get_st_shndx(); |
1873 | bool is_ordinary; | |
1874 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
1875 | if (!is_ordinary) | |
1876 | object->error(_("local symbol %u has bad shndx %u"), | |
1877 | r_sym, shndx); | |
1878 | else | |
1879 | got->add_local_pair_with_rela(object, r_sym, | |
1880 | lsym.get_st_shndx(), | |
1881 | GOT_TYPE_TLS_PAIR, | |
1882 | target->rela_dyn_section(layout), | |
1883 | (size == 64 | |
1884 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
1885 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
1886 | 0); | |
f5314dd5 DM |
1887 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
1888 | generate_tls_call(symtab, layout, target); | |
1889 | } | |
1890 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1891 | unsupported_reloc_local(object, r_type); | |
1892 | break; | |
1893 | ||
1894 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
1895 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1896 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1897 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1898 | if (optimized_type == tls::TLSOPT_NONE) | |
1899 | { | |
1900 | // Create a GOT entry for the module index. | |
1901 | target->got_mod_index_entry(symtab, layout, object); | |
1902 | ||
1903 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
1904 | generate_tls_call(symtab, layout, target); | |
1905 | } | |
1906 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1907 | unsupported_reloc_local(object, r_type); | |
1908 | break; | |
1909 | ||
1910 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1911 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1912 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1913 | break; | |
1914 | ||
1915 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1916 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1917 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1918 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1919 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1920 | layout->set_has_static_tls(); |
1921 | if (optimized_type == tls::TLSOPT_NONE) | |
1922 | { | |
1923 | // Create a GOT entry for the tp-relative offset. | |
1924 | Output_data_got<size, big_endian>* got | |
1925 | = target->got_section(symtab, layout); | |
1926 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1927 | ||
1928 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
1929 | { | |
1930 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
1931 | unsigned int off = got->add_constant(0); |
1932 | ||
1933 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 1934 | |
0da6fa6c DM |
1935 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
1936 | (size == 64 ? | |
1937 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
1938 | elfcpp::R_SPARC_TLS_TPOFF32), | |
1939 | got, off, 0); | |
f5314dd5 DM |
1940 | } |
1941 | } | |
1942 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1943 | unsupported_reloc_local(object, r_type); | |
1944 | break; | |
1945 | ||
1946 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1947 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1948 | layout->set_has_static_tls(); | |
1949 | if (output_is_shared) | |
1950 | { | |
1951 | // We need to create a dynamic relocation. | |
1952 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
1953 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1954 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
1955 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, |
1956 | output_section, data_shndx, | |
1957 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
1958 | } |
1959 | break; | |
1960 | } | |
1961 | } | |
1962 | break; | |
1963 | ||
1964 | // These are relocations which should only be seen by the | |
1965 | // dynamic linker, and should never be seen here. | |
1966 | case elfcpp::R_SPARC_COPY: | |
1967 | case elfcpp::R_SPARC_GLOB_DAT: | |
1968 | case elfcpp::R_SPARC_JMP_SLOT: | |
1969 | case elfcpp::R_SPARC_RELATIVE: | |
1970 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1971 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1972 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1973 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1974 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1975 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1976 | gold_error(_("%s: unexpected reloc %u in object file"), | |
1977 | object->name().c_str(), r_type); | |
1978 | break; | |
1979 | ||
1980 | default: | |
1981 | unsupported_reloc_local(object, r_type); | |
1982 | break; | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | // Report an unsupported relocation against a global symbol. | |
1987 | ||
1988 | template<int size, bool big_endian> | |
1989 | void | |
1990 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
1991 | Sized_relobj<size, big_endian>* object, | |
1992 | unsigned int r_type, | |
1993 | Symbol* gsym) | |
1994 | { | |
1995 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
1996 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
1997 | } | |
1998 | ||
1999 | // Scan a relocation for a global symbol. | |
2000 | ||
2001 | template<int size, bool big_endian> | |
2002 | inline void | |
2003 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2004 | Symbol_table* symtab, |
2005 | Layout* layout, | |
2006 | Target_sparc<size, big_endian>* target, | |
2007 | Sized_relobj<size, big_endian>* object, | |
2008 | unsigned int data_shndx, | |
2009 | Output_section* output_section, | |
2010 | const elfcpp::Rela<size, big_endian>& reloc, | |
2011 | unsigned int r_type, | |
2012 | Symbol* gsym) | |
2013 | { | |
2014 | unsigned int orig_r_type = r_type; | |
2015 | ||
9efe6174 ILT |
2016 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2017 | // section. We check here to avoid creating a dynamic reloc against | |
2018 | // _GLOBAL_OFFSET_TABLE_. | |
2019 | if (!target->has_got_section() | |
2020 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2021 | target->got_section(symtab, layout); | |
2022 | ||
f5314dd5 DM |
2023 | r_type &= 0xff; |
2024 | switch (r_type) | |
2025 | { | |
2026 | case elfcpp::R_SPARC_NONE: | |
2027 | case elfcpp::R_SPARC_REGISTER: | |
2028 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2029 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2030 | break; | |
2031 | ||
2032 | case elfcpp::R_SPARC_PLT64: | |
2033 | case elfcpp::R_SPARC_PLT32: | |
2034 | case elfcpp::R_SPARC_HIPLT22: | |
2035 | case elfcpp::R_SPARC_LOPLT10: | |
2036 | case elfcpp::R_SPARC_PCPLT32: | |
2037 | case elfcpp::R_SPARC_PCPLT22: | |
2038 | case elfcpp::R_SPARC_PCPLT10: | |
2039 | case elfcpp::R_SPARC_WPLT30: | |
2040 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2041 | // Otherwise we need a PLT entry. | |
2042 | if (gsym->final_value_is_known()) | |
2043 | break; | |
2044 | // If building a shared library, we can also skip the PLT entry | |
2045 | // if the symbol is defined in the output file and is protected | |
2046 | // or hidden. | |
2047 | if (gsym->is_defined() | |
2048 | && !gsym->is_from_dynobj() | |
2049 | && !gsym->is_preemptible()) | |
2050 | break; | |
2051 | target->make_plt_entry(symtab, layout, gsym); | |
2052 | break; | |
2053 | ||
2054 | case elfcpp::R_SPARC_DISP8: | |
2055 | case elfcpp::R_SPARC_DISP16: | |
2056 | case elfcpp::R_SPARC_DISP32: | |
2057 | case elfcpp::R_SPARC_DISP64: | |
2058 | case elfcpp::R_SPARC_PC_HH22: | |
2059 | case elfcpp::R_SPARC_PC_HM10: | |
2060 | case elfcpp::R_SPARC_PC_LM22: | |
2061 | case elfcpp::R_SPARC_PC10: | |
2062 | case elfcpp::R_SPARC_PC22: | |
2063 | case elfcpp::R_SPARC_WDISP30: | |
2064 | case elfcpp::R_SPARC_WDISP22: | |
2065 | case elfcpp::R_SPARC_WDISP19: | |
2066 | case elfcpp::R_SPARC_WDISP16: | |
2067 | { | |
2068 | if (gsym->needs_plt_entry()) | |
2069 | target->make_plt_entry(symtab, layout, gsym); | |
2070 | // Make a dynamic relocation if necessary. | |
2071 | int flags = Symbol::NON_PIC_REF; | |
2072 | if (gsym->type() == elfcpp::STT_FUNC) | |
2073 | flags |= Symbol::FUNCTION_CALL; | |
2074 | if (gsym->needs_dynamic_reloc(flags)) | |
2075 | { | |
966d4097 | 2076 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2077 | { |
12c0daef | 2078 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2079 | data_shndx, output_section, gsym, |
2080 | reloc); | |
2081 | } | |
2082 | else | |
2083 | { | |
2084 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2085 | check_non_pic(object, r_type); |
f5314dd5 DM |
2086 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2087 | data_shndx, reloc.get_r_offset(), | |
2088 | reloc.get_r_addend()); | |
2089 | } | |
2090 | } | |
2091 | } | |
2092 | break; | |
2093 | ||
2094 | case elfcpp::R_SPARC_UA64: | |
2095 | case elfcpp::R_SPARC_64: | |
2096 | case elfcpp::R_SPARC_HIX22: | |
2097 | case elfcpp::R_SPARC_LOX10: | |
2098 | case elfcpp::R_SPARC_H44: | |
2099 | case elfcpp::R_SPARC_M44: | |
2100 | case elfcpp::R_SPARC_L44: | |
2101 | case elfcpp::R_SPARC_HH22: | |
2102 | case elfcpp::R_SPARC_HM10: | |
2103 | case elfcpp::R_SPARC_LM22: | |
2104 | case elfcpp::R_SPARC_HI22: | |
2105 | case elfcpp::R_SPARC_LO10: | |
2106 | case elfcpp::R_SPARC_OLO10: | |
2107 | case elfcpp::R_SPARC_UA32: | |
2108 | case elfcpp::R_SPARC_32: | |
2109 | case elfcpp::R_SPARC_UA16: | |
2110 | case elfcpp::R_SPARC_16: | |
2111 | case elfcpp::R_SPARC_11: | |
2112 | case elfcpp::R_SPARC_10: | |
2113 | case elfcpp::R_SPARC_8: | |
2114 | case elfcpp::R_SPARC_7: | |
2115 | case elfcpp::R_SPARC_6: | |
2116 | case elfcpp::R_SPARC_5: | |
2117 | { | |
2118 | // Make a PLT entry if necessary. | |
2119 | if (gsym->needs_plt_entry()) | |
2120 | { | |
2121 | target->make_plt_entry(symtab, layout, gsym); | |
2122 | // Since this is not a PC-relative relocation, we may be | |
2123 | // taking the address of a function. In that case we need to | |
2124 | // set the entry in the dynamic symbol table to the address of | |
2125 | // the PLT entry. | |
2126 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2127 | gsym->set_needs_dynsym_value(); | |
2128 | } | |
2129 | // Make a dynamic relocation if necessary. | |
2130 | if (gsym->needs_dynamic_reloc(Symbol::ABSOLUTE_REF)) | |
2131 | { | |
0da6fa6c DM |
2132 | unsigned int r_off = reloc.get_r_offset(); |
2133 | ||
2134 | // The assembler can sometimes emit unaligned relocations | |
2135 | // for dwarf2 cfi directives. | |
2136 | switch (r_type) | |
2137 | { | |
2138 | case elfcpp::R_SPARC_16: | |
2139 | if (r_off & 0x1) | |
2140 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2141 | break; | |
2142 | case elfcpp::R_SPARC_32: | |
2143 | if (r_off & 0x3) | |
2144 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2145 | break; | |
2146 | case elfcpp::R_SPARC_64: | |
2147 | if (r_off & 0x7) | |
2148 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2149 | break; | |
2150 | case elfcpp::R_SPARC_UA16: | |
2151 | if (!(r_off & 0x1)) | |
2152 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2153 | break; | |
2154 | case elfcpp::R_SPARC_UA32: | |
2155 | if (!(r_off & 0x3)) | |
2156 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2157 | break; | |
2158 | case elfcpp::R_SPARC_UA64: | |
2159 | if (!(r_off & 0x7)) | |
2160 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2161 | break; | |
2162 | } | |
2163 | ||
966d4097 | 2164 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2165 | { |
12c0daef | 2166 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2167 | data_shndx, output_section, gsym, reloc); |
2168 | } | |
2169 | else if ((r_type == elfcpp::R_SPARC_32 | |
2170 | || r_type == elfcpp::R_SPARC_64) | |
2171 | && gsym->can_use_relative_reloc(false)) | |
2172 | { | |
2173 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2174 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2175 | output_section, object, | |
2176 | data_shndx, reloc.get_r_offset(), | |
2177 | reloc.get_r_addend()); | |
2178 | } | |
2179 | else | |
2180 | { | |
2181 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2182 | ||
32b769e1 | 2183 | check_non_pic(object, r_type); |
0da6fa6c DM |
2184 | if (gsym->is_from_dynobj() |
2185 | || gsym->is_undefined() | |
2186 | || gsym->is_preemptible()) | |
2187 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2188 | object, data_shndx, | |
2189 | reloc.get_r_offset(), | |
2190 | reloc.get_r_addend()); | |
2191 | else | |
2192 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2193 | output_section, | |
2194 | object, data_shndx, | |
2195 | reloc.get_r_offset(), | |
2196 | reloc.get_r_addend()); | |
f5314dd5 DM |
2197 | } |
2198 | } | |
2199 | } | |
2200 | break; | |
2201 | ||
024c4466 DM |
2202 | case elfcpp::R_SPARC_GOTDATA_OP: |
2203 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2204 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2205 | case elfcpp::R_SPARC_GOT10: |
2206 | case elfcpp::R_SPARC_GOT13: | |
2207 | case elfcpp::R_SPARC_GOT22: | |
2208 | { | |
2209 | // The symbol requires a GOT entry. | |
2210 | Output_data_got<size, big_endian>* got; | |
2211 | ||
2212 | got = target->got_section(symtab, layout); | |
2213 | if (gsym->final_value_is_known()) | |
2214 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2215 | else | |
2216 | { | |
2217 | // If this symbol is not fully resolved, we need to add a | |
2218 | // dynamic relocation for it. | |
2219 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2220 | if (gsym->is_from_dynobj() | |
2221 | || gsym->is_undefined() | |
2222 | || gsym->is_preemptible()) | |
2223 | got->add_global_with_rela(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2224 | elfcpp::R_SPARC_GLOB_DAT); | |
2225 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) | |
2226 | { | |
2227 | unsigned int off = got->add_constant(0); | |
2228 | ||
2229 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
2230 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2231 | got, off, 0); | |
2232 | } | |
2233 | } | |
2234 | } | |
2235 | break; | |
2236 | ||
2237 | // These are initial tls relocs, which are expected when | |
2238 | // linking. | |
2239 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2240 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2241 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2242 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2243 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2244 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2245 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2246 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2247 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2248 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2249 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2250 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2251 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2252 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2253 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2254 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2255 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2256 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2257 | { |
2258 | const bool is_final = gsym->final_value_is_known(); | |
2259 | const tls::Tls_optimization optimized_type | |
2260 | = optimize_tls_reloc(is_final, r_type); | |
2261 | switch (r_type) | |
2262 | { | |
2263 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2264 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2265 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2266 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2267 | if (optimized_type == tls::TLSOPT_NONE) | |
2268 | { | |
2269 | // Create a pair of GOT entries for the module index and | |
2270 | // dtv-relative offset. | |
2271 | Output_data_got<size, big_endian>* got | |
2272 | = target->got_section(symtab, layout); | |
2273 | got->add_global_pair_with_rela(gsym, GOT_TYPE_TLS_PAIR, | |
2274 | target->rela_dyn_section(layout), | |
2275 | (size == 64 ? | |
2276 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
2277 | elfcpp::R_SPARC_TLS_DTPMOD32), | |
2278 | (size == 64 ? | |
2279 | elfcpp::R_SPARC_TLS_DTPOFF64 : | |
2280 | elfcpp::R_SPARC_TLS_DTPOFF32)); | |
2281 | ||
2282 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2283 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2284 | generate_tls_call(symtab, layout, target); | |
2285 | } | |
2286 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2287 | { | |
2288 | // Create a GOT entry for the tp-relative offset. | |
2289 | Output_data_got<size, big_endian>* got | |
2290 | = target->got_section(symtab, layout); | |
2291 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2292 | target->rela_dyn_section(layout), | |
2293 | (size == 64 ? | |
2294 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2295 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2296 | } | |
2297 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2298 | unsupported_reloc_global(object, r_type, gsym); | |
2299 | break; | |
2300 | ||
2301 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2302 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2303 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2304 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2305 | if (optimized_type == tls::TLSOPT_NONE) | |
2306 | { | |
2307 | // Create a GOT entry for the module index. | |
2308 | target->got_mod_index_entry(symtab, layout, object); | |
2309 | ||
2310 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2311 | generate_tls_call(symtab, layout, target); | |
2312 | } | |
2313 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2314 | unsupported_reloc_global(object, r_type, gsym); | |
2315 | break; | |
2316 | ||
2317 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2318 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2319 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2320 | break; | |
2321 | ||
2322 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2323 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2324 | layout->set_has_static_tls(); | |
2325 | if (parameters->options().shared()) | |
2326 | { | |
2327 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2328 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2329 | output_section, object, | |
2330 | data_shndx, reloc.get_r_offset(), | |
2331 | 0); | |
f5314dd5 DM |
2332 | } |
2333 | break; | |
2334 | ||
2335 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2336 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2337 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2338 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2339 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2340 | layout->set_has_static_tls(); |
2341 | if (optimized_type == tls::TLSOPT_NONE) | |
2342 | { | |
2343 | // Create a GOT entry for the tp-relative offset. | |
2344 | Output_data_got<size, big_endian>* got | |
2345 | = target->got_section(symtab, layout); | |
2346 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2347 | target->rela_dyn_section(layout), | |
2348 | (size == 64 ? | |
2349 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2350 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2351 | } | |
2352 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2353 | unsupported_reloc_global(object, r_type, gsym); | |
2354 | break; | |
2355 | } | |
2356 | } | |
2357 | break; | |
2358 | ||
2359 | // These are relocations which should only be seen by the | |
2360 | // dynamic linker, and should never be seen here. | |
2361 | case elfcpp::R_SPARC_COPY: | |
2362 | case elfcpp::R_SPARC_GLOB_DAT: | |
2363 | case elfcpp::R_SPARC_JMP_SLOT: | |
2364 | case elfcpp::R_SPARC_RELATIVE: | |
2365 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2366 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2367 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2368 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2369 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2370 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2371 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2372 | object->name().c_str(), r_type); | |
2373 | break; | |
2374 | ||
2375 | default: | |
2376 | unsupported_reloc_global(object, r_type, gsym); | |
2377 | break; | |
2378 | } | |
2379 | } | |
2380 | ||
6d03d481 ST |
2381 | // Process relocations for gc. |
2382 | ||
2383 | template<int size, bool big_endian> | |
2384 | void | |
2385 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
2386 | Symbol_table* symtab, |
2387 | Layout* layout, | |
2388 | Sized_relobj<size, big_endian>* object, | |
2389 | unsigned int data_shndx, | |
2390 | unsigned int, | |
2391 | const unsigned char* prelocs, | |
2392 | size_t reloc_count, | |
2393 | Output_section* output_section, | |
2394 | bool needs_special_offset_handling, | |
2395 | size_t local_symbol_count, | |
2396 | const unsigned char* plocal_symbols) | |
2397 | { | |
2398 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2399 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 2400 | |
41cbeecc | 2401 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 2402 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
2403 | symtab, |
2404 | layout, | |
2405 | this, | |
2406 | object, | |
2407 | data_shndx, | |
2408 | prelocs, | |
2409 | reloc_count, | |
2410 | output_section, | |
2411 | needs_special_offset_handling, | |
2412 | local_symbol_count, | |
2413 | plocal_symbols); | |
2414 | } | |
2415 | ||
f5314dd5 DM |
2416 | // Scan relocations for a section. |
2417 | ||
2418 | template<int size, bool big_endian> | |
2419 | void | |
2420 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
2421 | Symbol_table* symtab, |
2422 | Layout* layout, | |
2423 | Sized_relobj<size, big_endian>* object, | |
2424 | unsigned int data_shndx, | |
2425 | unsigned int sh_type, | |
2426 | const unsigned char* prelocs, | |
2427 | size_t reloc_count, | |
2428 | Output_section* output_section, | |
2429 | bool needs_special_offset_handling, | |
2430 | size_t local_symbol_count, | |
2431 | const unsigned char* plocal_symbols) | |
2432 | { | |
2433 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2434 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
2435 | |
2436 | if (sh_type == elfcpp::SHT_REL) | |
2437 | { | |
2438 | gold_error(_("%s: unsupported REL reloc section"), | |
2439 | object->name().c_str()); | |
2440 | return; | |
2441 | } | |
2442 | ||
2ea97941 | 2443 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
2444 | symtab, |
2445 | layout, | |
2446 | this, | |
2447 | object, | |
2448 | data_shndx, | |
2449 | prelocs, | |
2450 | reloc_count, | |
2451 | output_section, | |
2452 | needs_special_offset_handling, | |
2453 | local_symbol_count, | |
2454 | plocal_symbols); | |
2455 | } | |
2456 | ||
2457 | // Finalize the sections. | |
2458 | ||
2459 | template<int size, bool big_endian> | |
2460 | void | |
d5b40221 DK |
2461 | Target_sparc<size, big_endian>::do_finalize_sections( |
2462 | Layout* layout, | |
f59f41f3 DK |
2463 | const Input_objects*, |
2464 | Symbol_table*) | |
f5314dd5 DM |
2465 | { |
2466 | // Fill in some more dynamic tags. | |
ea715a34 ILT |
2467 | const Reloc_section* rel_plt = (this->plt_ == NULL |
2468 | ? NULL | |
2469 | : this->plt_->rel_plt()); | |
2470 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 2471 | this->rela_dyn_, true, true); |
f5314dd5 DM |
2472 | |
2473 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
2474 | // relocs. | |
12c0daef ILT |
2475 | if (this->copy_relocs_.any_saved_relocs()) |
2476 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
f5314dd5 DM |
2477 | } |
2478 | ||
2479 | // Perform a relocation. | |
2480 | ||
2481 | template<int size, bool big_endian> | |
2482 | inline bool | |
2483 | Target_sparc<size, big_endian>::Relocate::relocate( | |
2484 | const Relocate_info<size, big_endian>* relinfo, | |
2485 | Target_sparc* target, | |
031cdbed | 2486 | Output_section*, |
f5314dd5 DM |
2487 | size_t relnum, |
2488 | const elfcpp::Rela<size, big_endian>& rela, | |
2489 | unsigned int r_type, | |
2490 | const Sized_symbol<size>* gsym, | |
2491 | const Symbol_value<size>* psymval, | |
2492 | unsigned char* view, | |
2493 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2494 | section_size_type view_size) | |
2495 | { | |
2496 | r_type &= 0xff; | |
2497 | ||
2498 | if (this->ignore_gd_add_) | |
2499 | { | |
2500 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
2501 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2502 | _("missing expected TLS relocation")); | |
2503 | else | |
2504 | { | |
2505 | this->ignore_gd_add_ = false; | |
2506 | return false; | |
2507 | } | |
2508 | } | |
2509 | ||
2510 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
2511 | ||
2512 | // Pick the value to use for symbols defined in shared objects. | |
2513 | Symbol_value<size> symval; | |
2514 | if (gsym != NULL | |
de4c45bd ILT |
2515 | && gsym->use_plt_offset(r_type == elfcpp::R_SPARC_DISP8 |
2516 | || r_type == elfcpp::R_SPARC_DISP16 | |
2517 | || r_type == elfcpp::R_SPARC_DISP32 | |
2518 | || r_type == elfcpp::R_SPARC_DISP64 | |
2519 | || r_type == elfcpp::R_SPARC_PC_HH22 | |
2520 | || r_type == elfcpp::R_SPARC_PC_HM10 | |
2521 | || r_type == elfcpp::R_SPARC_PC_LM22 | |
2522 | || r_type == elfcpp::R_SPARC_PC10 | |
2523 | || r_type == elfcpp::R_SPARC_PC22 | |
2524 | || r_type == elfcpp::R_SPARC_WDISP30 | |
2525 | || r_type == elfcpp::R_SPARC_WDISP22 | |
2526 | || r_type == elfcpp::R_SPARC_WDISP19 | |
2527 | || r_type == elfcpp::R_SPARC_WDISP16)) | |
f5314dd5 | 2528 | { |
2ea97941 | 2529 | elfcpp::Elf_Xword value; |
f5314dd5 | 2530 | |
2ea97941 | 2531 | value = target->plt_section()->address() + gsym->plt_offset(); |
f5314dd5 | 2532 | |
2ea97941 | 2533 | symval.set_output_value(value); |
f5314dd5 DM |
2534 | |
2535 | psymval = &symval; | |
2536 | } | |
2537 | ||
2538 | const Sized_relobj<size, big_endian>* object = relinfo->object; | |
2539 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2540 | ||
2541 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
2542 | // pointer points to the beginning, not the end, of the table. | |
2543 | // So we just use the plain offset. | |
f5314dd5 DM |
2544 | unsigned int got_offset = 0; |
2545 | switch (r_type) | |
2546 | { | |
024c4466 DM |
2547 | case elfcpp::R_SPARC_GOTDATA_OP: |
2548 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2549 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2550 | case elfcpp::R_SPARC_GOT10: |
2551 | case elfcpp::R_SPARC_GOT13: | |
2552 | case elfcpp::R_SPARC_GOT22: | |
2553 | if (gsym != NULL) | |
2554 | { | |
2555 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
2556 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
2557 | } | |
2558 | else | |
2559 | { | |
2560 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
2561 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
2562 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
2563 | } | |
f5314dd5 DM |
2564 | break; |
2565 | ||
2566 | default: | |
2567 | break; | |
2568 | } | |
2569 | ||
2570 | switch (r_type) | |
2571 | { | |
2572 | case elfcpp::R_SPARC_NONE: | |
2573 | case elfcpp::R_SPARC_REGISTER: | |
2574 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2575 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2576 | break; | |
2577 | ||
2578 | case elfcpp::R_SPARC_8: | |
2579 | Relocate_functions<size, big_endian>::rela8(view, object, | |
2580 | psymval, addend); | |
2581 | break; | |
2582 | ||
2583 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
2584 | if (rela.get_r_offset() & 0x1) |
2585 | { | |
2586 | // The assembler can sometimes emit unaligned relocations | |
2587 | // for dwarf2 cfi directives. | |
2588 | Reloc::ua16(view, object, psymval, addend); | |
2589 | } | |
2590 | else | |
2591 | Relocate_functions<size, big_endian>::rela16(view, object, | |
2592 | psymval, addend); | |
f5314dd5 DM |
2593 | break; |
2594 | ||
2595 | case elfcpp::R_SPARC_32: | |
2596 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
2597 | { |
2598 | if (rela.get_r_offset() & 0x3) | |
2599 | { | |
2600 | // The assembler can sometimes emit unaligned relocations | |
2601 | // for dwarf2 cfi directives. | |
2602 | Reloc::ua32(view, object, psymval, addend); | |
2603 | } | |
2604 | else | |
2605 | Relocate_functions<size, big_endian>::rela32(view, object, | |
2606 | psymval, addend); | |
2607 | } | |
f5314dd5 DM |
2608 | break; |
2609 | ||
2610 | case elfcpp::R_SPARC_DISP8: | |
2611 | Reloc::disp8(view, object, psymval, addend, address); | |
2612 | break; | |
2613 | ||
2614 | case elfcpp::R_SPARC_DISP16: | |
2615 | Reloc::disp16(view, object, psymval, addend, address); | |
2616 | break; | |
2617 | ||
2618 | case elfcpp::R_SPARC_DISP32: | |
2619 | Reloc::disp32(view, object, psymval, addend, address); | |
2620 | break; | |
2621 | ||
2622 | case elfcpp::R_SPARC_DISP64: | |
2623 | Reloc::disp64(view, object, psymval, addend, address); | |
2624 | break; | |
2625 | ||
2626 | case elfcpp::R_SPARC_WDISP30: | |
2627 | case elfcpp::R_SPARC_WPLT30: | |
2628 | Reloc::wdisp30(view, object, psymval, addend, address); | |
2629 | break; | |
2630 | ||
2631 | case elfcpp::R_SPARC_WDISP22: | |
2632 | Reloc::wdisp22(view, object, psymval, addend, address); | |
2633 | break; | |
2634 | ||
2635 | case elfcpp::R_SPARC_WDISP19: | |
2636 | Reloc::wdisp19(view, object, psymval, addend, address); | |
2637 | break; | |
2638 | ||
2639 | case elfcpp::R_SPARC_WDISP16: | |
2640 | Reloc::wdisp16(view, object, psymval, addend, address); | |
2641 | break; | |
2642 | ||
2643 | case elfcpp::R_SPARC_HI22: | |
2644 | Reloc::hi22(view, object, psymval, addend); | |
2645 | break; | |
2646 | ||
2647 | case elfcpp::R_SPARC_22: | |
2648 | Reloc::rela32_22(view, object, psymval, addend); | |
2649 | break; | |
2650 | ||
2651 | case elfcpp::R_SPARC_13: | |
2652 | Reloc::rela32_13(view, object, psymval, addend); | |
2653 | break; | |
2654 | ||
2655 | case elfcpp::R_SPARC_LO10: | |
2656 | Reloc::lo10(view, object, psymval, addend); | |
2657 | break; | |
2658 | ||
2659 | case elfcpp::R_SPARC_GOT10: | |
2660 | Reloc::lo10(view, got_offset, addend); | |
2661 | break; | |
2662 | ||
024c4466 DM |
2663 | case elfcpp::R_SPARC_GOTDATA_OP: |
2664 | break; | |
2665 | ||
2666 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2667 | case elfcpp::R_SPARC_GOT13: |
2668 | Reloc::rela32_13(view, got_offset, addend); | |
2669 | break; | |
2670 | ||
024c4466 | 2671 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
f5314dd5 DM |
2672 | case elfcpp::R_SPARC_GOT22: |
2673 | Reloc::hi22(view, got_offset, addend); | |
2674 | break; | |
2675 | ||
2676 | case elfcpp::R_SPARC_PC10: | |
2677 | Reloc::pc10(view, object, psymval, addend, address); | |
2678 | break; | |
2679 | ||
2680 | case elfcpp::R_SPARC_PC22: | |
2681 | Reloc::pc22(view, object, psymval, addend, address); | |
2682 | break; | |
2683 | ||
2684 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2685 | case elfcpp::R_SPARC_UA32: | |
2686 | Reloc::ua32(view, object, psymval, addend); | |
2687 | break; | |
2688 | ||
2689 | case elfcpp::R_SPARC_PLT64: | |
2690 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2691 | psymval, addend); | |
2692 | break; | |
2693 | ||
2694 | case elfcpp::R_SPARC_PLT32: | |
2695 | Relocate_functions<size, big_endian>::rela32(view, object, | |
2696 | psymval, addend); | |
2697 | break; | |
2698 | ||
2699 | case elfcpp::R_SPARC_HIPLT22: | |
2700 | Reloc::hi22(view, object, psymval, addend); | |
2701 | break; | |
2702 | ||
2703 | case elfcpp::R_SPARC_LOPLT10: | |
2704 | Reloc::lo10(view, object, psymval, addend); | |
2705 | break; | |
2706 | ||
2707 | case elfcpp::R_SPARC_PCPLT32: | |
2708 | Reloc::disp32(view, object, psymval, addend, address); | |
2709 | break; | |
2710 | ||
2711 | case elfcpp::R_SPARC_PCPLT22: | |
2712 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2713 | break; | |
2714 | ||
2715 | case elfcpp::R_SPARC_PCPLT10: | |
2716 | Reloc::lo10(view, object, psymval, addend, address); | |
2717 | break; | |
2718 | ||
2719 | case elfcpp::R_SPARC_64: | |
2720 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
2721 | { |
2722 | if (rela.get_r_offset() & 0x7) | |
2723 | { | |
2724 | // The assembler can sometimes emit unaligned relocations | |
2725 | // for dwarf2 cfi directives. | |
2726 | Reloc::ua64(view, object, psymval, addend); | |
2727 | } | |
2728 | else | |
2729 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2730 | psymval, addend); | |
2731 | } | |
f5314dd5 DM |
2732 | break; |
2733 | ||
2734 | case elfcpp::R_SPARC_OLO10: | |
2735 | { | |
2736 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
2737 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
2738 | Reloc::olo10(view, object, psymval, addend, addend2); | |
2739 | } | |
2740 | break; | |
2741 | ||
2742 | case elfcpp::R_SPARC_HH22: | |
2743 | Reloc::hh22(view, object, psymval, addend); | |
2744 | break; | |
2745 | ||
2746 | case elfcpp::R_SPARC_PC_HH22: | |
2747 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
2748 | break; | |
2749 | ||
2750 | case elfcpp::R_SPARC_HM10: | |
2751 | Reloc::hm10(view, object, psymval, addend); | |
2752 | break; | |
2753 | ||
2754 | case elfcpp::R_SPARC_PC_HM10: | |
2755 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
2756 | break; | |
2757 | ||
2758 | case elfcpp::R_SPARC_LM22: | |
2759 | Reloc::hi22(view, object, psymval, addend); | |
2760 | break; | |
2761 | ||
2762 | case elfcpp::R_SPARC_PC_LM22: | |
2763 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2764 | break; | |
2765 | ||
2766 | case elfcpp::R_SPARC_11: | |
2767 | Reloc::rela32_11(view, object, psymval, addend); | |
2768 | break; | |
2769 | ||
2770 | case elfcpp::R_SPARC_10: | |
2771 | Reloc::rela32_10(view, object, psymval, addend); | |
2772 | break; | |
2773 | ||
2774 | case elfcpp::R_SPARC_7: | |
2775 | Reloc::rela32_7(view, object, psymval, addend); | |
2776 | break; | |
2777 | ||
2778 | case elfcpp::R_SPARC_6: | |
2779 | Reloc::rela32_6(view, object, psymval, addend); | |
2780 | break; | |
2781 | ||
2782 | case elfcpp::R_SPARC_5: | |
2783 | Reloc::rela32_5(view, object, psymval, addend); | |
2784 | break; | |
2785 | ||
2786 | case elfcpp::R_SPARC_HIX22: | |
2787 | Reloc::hix22(view, object, psymval, addend); | |
2788 | break; | |
2789 | ||
2790 | case elfcpp::R_SPARC_LOX10: | |
2791 | Reloc::lox10(view, object, psymval, addend); | |
2792 | break; | |
2793 | ||
2794 | case elfcpp::R_SPARC_H44: | |
2795 | Reloc::h44(view, object, psymval, addend); | |
2796 | break; | |
2797 | ||
2798 | case elfcpp::R_SPARC_M44: | |
2799 | Reloc::m44(view, object, psymval, addend); | |
2800 | break; | |
2801 | ||
2802 | case elfcpp::R_SPARC_L44: | |
2803 | Reloc::l44(view, object, psymval, addend); | |
2804 | break; | |
2805 | ||
2806 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2807 | case elfcpp::R_SPARC_UA64: | |
2808 | Reloc::ua64(view, object, psymval, addend); | |
2809 | break; | |
2810 | ||
2811 | case elfcpp::R_SPARC_UA16: | |
2812 | Reloc::ua16(view, object, psymval, addend); | |
2813 | break; | |
2814 | ||
2815 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2816 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2817 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2818 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2819 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2820 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2821 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2822 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2823 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
2824 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2825 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2826 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2827 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2828 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2829 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2830 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2831 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
2832 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2833 | this->relocate_tls(relinfo, target, relnum, rela, | |
2834 | r_type, gsym, psymval, view, | |
2835 | address, view_size); | |
2836 | break; | |
2837 | ||
2838 | case elfcpp::R_SPARC_COPY: | |
2839 | case elfcpp::R_SPARC_GLOB_DAT: | |
2840 | case elfcpp::R_SPARC_JMP_SLOT: | |
2841 | case elfcpp::R_SPARC_RELATIVE: | |
2842 | // These are outstanding tls relocs, which are unexpected when | |
2843 | // linking. | |
2844 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2845 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2846 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2847 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2848 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2849 | _("unexpected reloc %u in object file"), | |
2850 | r_type); | |
2851 | break; | |
2852 | ||
2853 | default: | |
2854 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2855 | _("unsupported reloc %u"), | |
2856 | r_type); | |
2857 | break; | |
2858 | } | |
2859 | ||
2860 | return true; | |
2861 | } | |
2862 | ||
2863 | // Perform a TLS relocation. | |
2864 | ||
2865 | template<int size, bool big_endian> | |
2866 | inline void | |
2867 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
2868 | const Relocate_info<size, big_endian>* relinfo, | |
2869 | Target_sparc<size, big_endian>* target, | |
2870 | size_t relnum, | |
2871 | const elfcpp::Rela<size, big_endian>& rela, | |
2872 | unsigned int r_type, | |
2873 | const Sized_symbol<size>* gsym, | |
2874 | const Symbol_value<size>* psymval, | |
2875 | unsigned char* view, | |
2876 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2877 | section_size_type) | |
2878 | { | |
2879 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
2880 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
2881 | const Sized_relobj<size, big_endian>* object = relinfo->object; | |
2882 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
2883 | ||
2884 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 2885 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
2886 | |
2887 | const bool is_final = | |
2888 | (gsym == NULL | |
2889 | ? !parameters->options().output_is_position_independent() | |
2890 | : gsym->final_value_is_known()); | |
2891 | const tls::Tls_optimization optimized_type | |
2892 | = optimize_tls_reloc(is_final, r_type); | |
2893 | ||
2894 | switch (r_type) | |
2895 | { | |
2896 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2897 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2898 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2899 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2900 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2901 | { | |
2902 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2903 | Insntype val; | |
2904 | ||
2ea97941 | 2905 | value -= tls_segment->memsz(); |
f5314dd5 DM |
2906 | |
2907 | switch (r_type) | |
2908 | { | |
2909 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2910 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 2911 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
2912 | break; |
2913 | ||
2914 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2915 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 2916 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
2917 | break; |
2918 | ||
2919 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2920 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
2921 | val = elfcpp::Swap<32, true>::readval(wv); | |
2922 | val = (val & ~0x7c000) | 0x1c000; | |
2923 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2924 | break; | |
2925 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2926 | // call __tls_get_addr --> nop | |
2927 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
2928 | break; | |
2929 | } | |
2930 | break; | |
2931 | } | |
2932 | else | |
2933 | { | |
2934 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
2935 | ? GOT_TYPE_TLS_OFFSET | |
2936 | : GOT_TYPE_TLS_PAIR); | |
2937 | if (gsym != NULL) | |
2938 | { | |
2939 | gold_assert(gsym->has_got_offset(got_type)); | |
2ea97941 | 2940 | value = gsym->got_offset(got_type); |
f5314dd5 DM |
2941 | } |
2942 | else | |
2943 | { | |
2944 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
2945 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
2ea97941 | 2946 | value = object->local_got_offset(r_sym, got_type); |
f5314dd5 DM |
2947 | } |
2948 | if (optimized_type == tls::TLSOPT_TO_IE) | |
2949 | { | |
2950 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2951 | Insntype val; | |
2952 | ||
2953 | switch (r_type) | |
2954 | { | |
2955 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2956 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 2957 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
2958 | break; |
2959 | ||
2960 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2961 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 2962 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
2963 | break; |
2964 | ||
2965 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2966 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
2967 | val = elfcpp::Swap<32, true>::readval(wv); | |
2968 | ||
2969 | if (size == 64) | |
2970 | val |= 0xc0580000; | |
2971 | else | |
2972 | val |= 0xc0000000; | |
2973 | ||
2974 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2975 | break; | |
2976 | ||
2977 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2978 | // The compiler can put the TLS_GD_ADD instruction | |
2979 | // into the delay slot of the call. If so, we need | |
2980 | // to transpose the two instructions so that the | |
2981 | // the new sequence works properly. | |
2982 | // | |
2983 | // The test we use is if the instruction in the | |
2984 | // delay slot is an add with destination register | |
2985 | // equal to %o0 | |
2986 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
2987 | if ((val & 0x81f80000) == 0x80000000 | |
2988 | && ((val >> 25) & 0x1f) == 0x8) | |
2989 | { | |
2990 | if (size == 64) | |
2991 | val |= 0xc0580000; | |
2992 | else | |
2993 | val |= 0xc0000000; | |
2994 | ||
2995 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2996 | ||
2997 | wv += 1; | |
2998 | this->ignore_gd_add_ = true; | |
2999 | } | |
3000 | ||
3001 | // call __tls_get_addr --> add %g7, %o0, %o0 | |
3002 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3003 | break; | |
3004 | } | |
3005 | break; | |
3006 | } | |
3007 | else if (optimized_type == tls::TLSOPT_NONE) | |
3008 | { | |
3009 | switch (r_type) | |
3010 | { | |
3011 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3012 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3013 | break; |
3014 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3015 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3016 | break; |
3017 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3018 | break; | |
3019 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3020 | { | |
3021 | Symbol_value<size> symval; | |
2ea97941 | 3022 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3023 | Symbol* tsym; |
3024 | ||
3025 | tsym = target->tls_get_addr_sym_; | |
3026 | gold_assert(tsym); | |
2ea97941 ILT |
3027 | value = (target->plt_section()->address() + |
3028 | tsym->plt_offset()); | |
3029 | symval.set_output_value(value); | |
f5314dd5 DM |
3030 | Reloc::wdisp30(view, object, &symval, addend, address); |
3031 | } | |
3032 | break; | |
3033 | } | |
3034 | break; | |
3035 | } | |
3036 | } | |
3037 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3038 | _("unsupported reloc %u"), | |
3039 | r_type); | |
3040 | break; | |
3041 | ||
3042 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3043 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3044 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3045 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3046 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3047 | { | |
3048 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3049 | ||
3050 | switch (r_type) | |
3051 | { | |
3052 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3053 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3054 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3055 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3056 | break; | |
3057 | ||
3058 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3059 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3060 | break; | |
3061 | } | |
3062 | break; | |
3063 | } | |
3064 | else if (optimized_type == tls::TLSOPT_NONE) | |
3065 | { | |
3066 | // Relocate the field with the offset of the GOT entry for | |
3067 | // the module index. | |
3068 | unsigned int got_offset; | |
3069 | ||
3070 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3071 | switch (r_type) | |
3072 | { | |
3073 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3074 | Reloc::hi22(view, got_offset, addend); | |
3075 | break; | |
3076 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3077 | Reloc::lo10(view, got_offset, addend); | |
3078 | break; | |
3079 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3080 | break; | |
3081 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3082 | { | |
3083 | Symbol_value<size> symval; | |
2ea97941 | 3084 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3085 | Symbol* tsym; |
3086 | ||
3087 | tsym = target->tls_get_addr_sym_; | |
3088 | gold_assert(tsym); | |
2ea97941 ILT |
3089 | value = (target->plt_section()->address() + |
3090 | tsym->plt_offset()); | |
3091 | symval.set_output_value(value); | |
f5314dd5 DM |
3092 | Reloc::wdisp30(view, object, &symval, addend, address); |
3093 | } | |
3094 | break; | |
3095 | } | |
3096 | break; | |
3097 | } | |
3098 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3099 | _("unsupported reloc %u"), | |
3100 | r_type); | |
3101 | break; | |
3102 | ||
3103 | // These relocs can appear in debugging sections, in which case | |
3104 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3105 | // field tells us this. | |
3106 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3107 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3108 | { | |
2ea97941 ILT |
3109 | value -= tls_segment->memsz(); |
3110 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3111 | } |
3112 | else | |
2ea97941 | 3113 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3114 | break; |
3115 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3116 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3117 | { | |
2ea97941 ILT |
3118 | value -= tls_segment->memsz(); |
3119 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3120 | } |
3121 | else | |
2ea97941 | 3122 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3123 | break; |
3124 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3125 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3126 | { | |
3127 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3128 | Insntype val; | |
3129 | ||
3130 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3131 | val = elfcpp::Swap<32, true>::readval(wv); | |
3132 | val = (val & ~0x7c000) | 0x1c000; | |
3133 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3134 | } | |
3135 | break; | |
3136 | ||
3137 | // When optimizing IE --> LE, the only relocation that is handled | |
3138 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3139 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3140 | // rs2 and rd are the same. | |
3141 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3142 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3143 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3144 | { | |
3145 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3146 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3147 | Insntype rs2 = val & 0x1f; | |
3148 | Insntype rd = (val >> 25) & 0x1f; | |
3149 | ||
3150 | if (rs2 == rd) | |
3151 | val = sparc_nop; | |
3152 | else | |
3153 | val = sparc_mov | (val & 0x3e00001f); | |
3154 | ||
3155 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3156 | } | |
3157 | break; | |
3158 | ||
3159 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3160 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3161 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3162 | { | |
2ea97941 | 3163 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3164 | switch (r_type) |
3165 | { | |
3166 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3167 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3168 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3169 | break; |
3170 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3171 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3172 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3173 | break; |
3174 | } | |
3175 | break; | |
3176 | } | |
3177 | else if (optimized_type == tls::TLSOPT_NONE) | |
3178 | { | |
3179 | // Relocate the field with the offset of the GOT entry for | |
3180 | // the tp-relative offset of the symbol. | |
3181 | if (gsym != NULL) | |
3182 | { | |
3183 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3184 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3185 | } |
3186 | else | |
3187 | { | |
3188 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3189 | gold_assert(object->local_has_got_offset(r_sym, | |
3190 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3191 | value = object->local_got_offset(r_sym, |
3192 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3193 | } |
3194 | switch (r_type) | |
3195 | { | |
3196 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3197 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3198 | break; |
3199 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3200 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3201 | break; |
3202 | } | |
3203 | break; | |
3204 | } | |
3205 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3206 | _("unsupported reloc %u"), | |
3207 | r_type); | |
3208 | break; | |
3209 | ||
9efe6174 ILT |
3210 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3211 | // This seems to be mainly so that we can find the addition | |
3212 | // instruction if there is one. There doesn't seem to be any | |
3213 | // actual relocation to apply. | |
3214 | break; | |
3215 | ||
f5314dd5 DM |
3216 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3217 | // If we're creating a shared library, a dynamic relocation will | |
3218 | // have been created for this location, so do not apply it now. | |
3219 | if (!parameters->options().shared()) | |
3220 | { | |
2ea97941 ILT |
3221 | value -= tls_segment->memsz(); |
3222 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3223 | } |
3224 | break; | |
3225 | ||
3226 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3227 | // If we're creating a shared library, a dynamic relocation will | |
3228 | // have been created for this location, so do not apply it now. | |
3229 | if (!parameters->options().shared()) | |
3230 | { | |
2ea97941 ILT |
3231 | value -= tls_segment->memsz(); |
3232 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3233 | } |
3234 | break; | |
3235 | } | |
3236 | } | |
3237 | ||
3238 | // Relocate section data. | |
3239 | ||
3240 | template<int size, bool big_endian> | |
3241 | void | |
3242 | Target_sparc<size, big_endian>::relocate_section( | |
3243 | const Relocate_info<size, big_endian>* relinfo, | |
3244 | unsigned int sh_type, | |
3245 | const unsigned char* prelocs, | |
3246 | size_t reloc_count, | |
3247 | Output_section* output_section, | |
3248 | bool needs_special_offset_handling, | |
3249 | unsigned char* view, | |
3250 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
3251 | section_size_type view_size, |
3252 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
3253 | { |
3254 | typedef Target_sparc<size, big_endian> Sparc; | |
3255 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
3256 | ||
3257 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3258 | ||
3259 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
3260 | Sparc_relocate>( | |
3261 | relinfo, | |
3262 | this, | |
3263 | prelocs, | |
3264 | reloc_count, | |
3265 | output_section, | |
3266 | needs_special_offset_handling, | |
3267 | view, | |
3268 | address, | |
364c7fa5 ILT |
3269 | view_size, |
3270 | reloc_symbol_changes); | |
f5314dd5 DM |
3271 | } |
3272 | ||
3273 | // Return the size of a relocation while scanning during a relocatable | |
3274 | // link. | |
3275 | ||
3276 | template<int size, bool big_endian> | |
3277 | unsigned int | |
3278 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
3279 | unsigned int, | |
3280 | Relobj*) | |
3281 | { | |
3282 | // We are always SHT_RELA, so we should never get here. | |
3283 | gold_unreachable(); | |
3284 | return 0; | |
3285 | } | |
3286 | ||
3287 | // Scan the relocs during a relocatable link. | |
3288 | ||
3289 | template<int size, bool big_endian> | |
3290 | void | |
3291 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
3292 | Symbol_table* symtab, |
3293 | Layout* layout, | |
3294 | Sized_relobj<size, big_endian>* object, | |
3295 | unsigned int data_shndx, | |
3296 | unsigned int sh_type, | |
3297 | const unsigned char* prelocs, | |
3298 | size_t reloc_count, | |
3299 | Output_section* output_section, | |
3300 | bool needs_special_offset_handling, | |
3301 | size_t local_symbol_count, | |
3302 | const unsigned char* plocal_symbols, | |
3303 | Relocatable_relocs* rr) | |
3304 | { | |
3305 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3306 | ||
3307 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
3308 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
3309 | ||
3310 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
3311 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
3312 | symtab, |
3313 | layout, | |
3314 | object, | |
3315 | data_shndx, | |
3316 | prelocs, | |
3317 | reloc_count, | |
3318 | output_section, | |
3319 | needs_special_offset_handling, | |
3320 | local_symbol_count, | |
3321 | plocal_symbols, | |
3322 | rr); | |
3323 | } | |
3324 | ||
3325 | // Relocate a section during a relocatable link. | |
3326 | ||
3327 | template<int size, bool big_endian> | |
3328 | void | |
3329 | Target_sparc<size, big_endian>::relocate_for_relocatable( | |
3330 | const Relocate_info<size, big_endian>* relinfo, | |
3331 | unsigned int sh_type, | |
3332 | const unsigned char* prelocs, | |
3333 | size_t reloc_count, | |
3334 | Output_section* output_section, | |
3335 | off_t offset_in_output_section, | |
3336 | const Relocatable_relocs* rr, | |
3337 | unsigned char* view, | |
3338 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
3339 | section_size_type view_size, | |
3340 | unsigned char* reloc_view, | |
3341 | section_size_type reloc_view_size) | |
3342 | { | |
3343 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3344 | ||
3345 | gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>( | |
3346 | relinfo, | |
3347 | prelocs, | |
3348 | reloc_count, | |
3349 | output_section, | |
3350 | offset_in_output_section, | |
3351 | rr, | |
3352 | view, | |
3353 | view_address, | |
3354 | view_size, | |
3355 | reloc_view, | |
3356 | reloc_view_size); | |
3357 | } | |
3358 | ||
3359 | // Return the value to use for a dynamic which requires special | |
3360 | // treatment. This is how we support equality comparisons of function | |
3361 | // pointers across shared library boundaries, as described in the | |
3362 | // processor specific ABI supplement. | |
3363 | ||
3364 | template<int size, bool big_endian> | |
3365 | uint64_t | |
3366 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
3367 | { | |
3368 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
3369 | return this->plt_section()->address() + gsym->plt_offset(); | |
3370 | } | |
3371 | ||
3372 | // The selector for sparc object files. | |
3373 | ||
3374 | template<int size, bool big_endian> | |
3375 | class Target_selector_sparc : public Target_selector | |
3376 | { | |
3377 | public: | |
3378 | Target_selector_sparc() | |
3379 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
3380 | (size == 64 ? "elf64-sparc" : "elf32-sparc")) | |
3381 | { } | |
3382 | ||
2ea97941 | 3383 | Target* do_recognize(int machine, int, int) |
f5314dd5 DM |
3384 | { |
3385 | switch (size) | |
3386 | { | |
3387 | case 64: | |
2ea97941 | 3388 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
3389 | return NULL; |
3390 | break; | |
3391 | ||
3392 | case 32: | |
2ea97941 ILT |
3393 | if (machine != elfcpp::EM_SPARC |
3394 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
3395 | return NULL; |
3396 | break; | |
3397 | ||
3398 | default: | |
3399 | return NULL; | |
3400 | } | |
3401 | ||
7f055c20 | 3402 | return this->instantiate_target(); |
f5314dd5 DM |
3403 | } |
3404 | ||
3405 | Target* do_instantiate_target() | |
7f055c20 | 3406 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
3407 | }; |
3408 | ||
3409 | Target_selector_sparc<32, true> target_selector_sparc32; | |
3410 | Target_selector_sparc<64, true> target_selector_sparc64; | |
3411 | ||
3412 | } // End anonymous namespace. |