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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
6d03d481 | 3 | // Copyright 2008, 2009 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 | |
d5b40221 | 97 | do_finalize_sections(Layout*, const Input_objects*); |
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 | |
164 | got_size() | |
165 | { | |
166 | gold_assert(this->got_ != NULL); | |
167 | return this->got_->data_size(); | |
168 | } | |
169 | ||
170 | private: | |
171 | ||
172 | // The class which scans relocations. | |
32b769e1 | 173 | class Scan |
f5314dd5 | 174 | { |
32b769e1 DM |
175 | public: |
176 | Scan() | |
177 | : issued_non_pic_error_(false) | |
178 | { } | |
179 | ||
f5314dd5 | 180 | inline void |
ad0f2072 | 181 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
f5314dd5 DM |
182 | Sized_relobj<size, big_endian>* object, |
183 | unsigned int data_shndx, | |
184 | Output_section* output_section, | |
185 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
186 | const elfcpp::Sym<size, big_endian>& lsym); | |
187 | ||
188 | inline void | |
ad0f2072 | 189 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
f5314dd5 DM |
190 | Sized_relobj<size, big_endian>* object, |
191 | unsigned int data_shndx, | |
192 | Output_section* output_section, | |
193 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
194 | Symbol* gsym); | |
195 | ||
32b769e1 | 196 | private: |
f5314dd5 DM |
197 | static void |
198 | unsupported_reloc_local(Sized_relobj<size, big_endian>*, | |
199 | unsigned int r_type); | |
200 | ||
201 | static void | |
202 | unsupported_reloc_global(Sized_relobj<size, big_endian>*, | |
203 | unsigned int r_type, Symbol*); | |
204 | ||
205 | static void | |
206 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
207 | Target_sparc* target); | |
32b769e1 DM |
208 | |
209 | void | |
210 | check_non_pic(Relobj*, unsigned int r_type); | |
211 | ||
212 | // Whether we have issued an error about a non-PIC compilation. | |
213 | bool issued_non_pic_error_; | |
f5314dd5 DM |
214 | }; |
215 | ||
216 | // The class which implements relocation. | |
217 | class Relocate | |
218 | { | |
219 | public: | |
220 | Relocate() | |
221 | : ignore_gd_add_(false) | |
222 | { } | |
223 | ||
224 | ~Relocate() | |
225 | { | |
226 | if (this->ignore_gd_add_) | |
227 | { | |
228 | // FIXME: This needs to specify the location somehow. | |
229 | gold_error(_("missing expected TLS relocation")); | |
230 | } | |
231 | } | |
232 | ||
233 | // Do a relocation. Return false if the caller should not issue | |
234 | // any warnings about this relocation. | |
235 | inline bool | |
236 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
237 | Output_section*, size_t relnum, |
238 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
239 | unsigned int r_type, const Sized_symbol<size>*, |
240 | const Symbol_value<size>*, | |
241 | unsigned char*, | |
242 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
243 | section_size_type); | |
244 | ||
245 | private: | |
246 | // Do a TLS relocation. | |
247 | inline void | |
248 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
249 | size_t relnum, const elfcpp::Rela<size, big_endian>&, | |
250 | unsigned int r_type, const Sized_symbol<size>*, | |
251 | const Symbol_value<size>*, | |
252 | unsigned char*, | |
253 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
254 | section_size_type); | |
255 | ||
256 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD | |
257 | bool ignore_gd_add_; | |
258 | }; | |
259 | ||
260 | // A class which returns the size required for a relocation type, | |
261 | // used while scanning relocs during a relocatable link. | |
262 | class Relocatable_size_for_reloc | |
263 | { | |
264 | public: | |
265 | unsigned int | |
266 | get_size_for_reloc(unsigned int, Relobj*); | |
267 | }; | |
268 | ||
269 | // Get the GOT section, creating it if necessary. | |
270 | Output_data_got<size, big_endian>* | |
271 | got_section(Symbol_table*, Layout*); | |
272 | ||
273 | // Create a PLT entry for a global symbol. | |
274 | void | |
275 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
276 | ||
277 | // Create a GOT entry for the TLS module index. | |
278 | unsigned int | |
279 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
280 | Sized_relobj<size, big_endian>* object); | |
281 | ||
282 | // Return the gsym for "__tls_get_addr". Cache if not already | |
283 | // cached. | |
284 | Symbol* | |
285 | tls_get_addr_sym(Symbol_table* symtab) | |
286 | { | |
287 | if (!this->tls_get_addr_sym_) | |
288 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
289 | gold_assert(this->tls_get_addr_sym_); | |
290 | return this->tls_get_addr_sym_; | |
291 | } | |
292 | ||
293 | // Get the PLT section. | |
294 | const Output_data_plt_sparc<size, big_endian>* | |
295 | plt_section() const | |
296 | { | |
297 | gold_assert(this->plt_ != NULL); | |
298 | return this->plt_; | |
299 | } | |
300 | ||
301 | // Get the dynamic reloc section, creating it if necessary. | |
302 | Reloc_section* | |
303 | rela_dyn_section(Layout*); | |
304 | ||
f5314dd5 DM |
305 | // Copy a relocation against a global symbol. |
306 | void | |
ef9beddf ILT |
307 | copy_reloc(Symbol_table* symtab, Layout* layout, |
308 | Sized_relobj<size, big_endian>* object, | |
12c0daef ILT |
309 | unsigned int shndx, Output_section* output_section, |
310 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
311 | { | |
312 | this->copy_relocs_.copy_reloc(symtab, layout, | |
313 | symtab->get_sized_symbol<size>(sym), | |
314 | object, shndx, output_section, | |
315 | reloc, this->rela_dyn_section(layout)); | |
316 | } | |
f5314dd5 DM |
317 | |
318 | // Information about this specific target which we pass to the | |
319 | // general Target structure. | |
320 | static Target::Target_info sparc_info; | |
321 | ||
322 | // The types of GOT entries needed for this platform. | |
323 | enum Got_type | |
324 | { | |
325 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
326 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
327 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
328 | }; | |
329 | ||
330 | // The GOT section. | |
331 | Output_data_got<size, big_endian>* got_; | |
332 | // The PLT section. | |
333 | Output_data_plt_sparc<size, big_endian>* plt_; | |
334 | // The dynamic reloc section. | |
335 | Reloc_section* rela_dyn_; | |
336 | // Relocs saved to avoid a COPY reloc. | |
12c0daef | 337 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
338 | // Space for variables copied with a COPY reloc. |
339 | Output_data_space* dynbss_; | |
340 | // Offset of the GOT entry for the TLS module index; | |
341 | unsigned int got_mod_index_offset_; | |
342 | // Cached pointer to __tls_get_addr symbol | |
343 | Symbol* tls_get_addr_sym_; | |
344 | }; | |
345 | ||
346 | template<> | |
347 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
348 | { | |
349 | 32, // size | |
350 | true, // is_big_endian | |
351 | elfcpp::EM_SPARC, // machine_code | |
352 | false, // has_make_symbol | |
353 | false, // has_resolve | |
354 | false, // has_code_fill | |
355 | true, // is_default_stack_executable | |
356 | '\0', // wrap_char | |
357 | "/usr/lib/ld.so.1", // dynamic_linker | |
358 | 0x00010000, // default_text_segment_address | |
359 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
360 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
361 | elfcpp::SHN_UNDEF, // small_common_shndx | |
362 | elfcpp::SHN_UNDEF, // large_common_shndx | |
363 | 0, // small_common_section_flags | |
364 | 0 // large_common_section_flags | |
f5314dd5 DM |
365 | }; |
366 | ||
367 | template<> | |
368 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
369 | { | |
370 | 64, // size | |
371 | true, // is_big_endian | |
372 | elfcpp::EM_SPARCV9, // machine_code | |
373 | false, // has_make_symbol | |
374 | false, // has_resolve | |
375 | false, // has_code_fill | |
376 | true, // is_default_stack_executable | |
377 | '\0', // wrap_char | |
378 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
379 | 0x100000, // default_text_segment_address | |
380 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
381 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
382 | elfcpp::SHN_UNDEF, // small_common_shndx | |
383 | elfcpp::SHN_UNDEF, // large_common_shndx | |
384 | 0, // small_common_section_flags | |
385 | 0 // large_common_section_flags | |
f5314dd5 DM |
386 | }; |
387 | ||
388 | // We have to take care here, even when operating in little-endian | |
389 | // mode, sparc instructions are still big endian. | |
390 | template<int size, bool big_endian> | |
391 | class Sparc_relocate_functions | |
392 | { | |
393 | private: | |
394 | // Do a simple relocation with the addend in the relocation. | |
395 | template<int valsize> | |
396 | static inline void | |
397 | rela(unsigned char* view, | |
398 | unsigned int right_shift, | |
399 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
400 | typename elfcpp::Swap<size, big_endian>::Valtype value, | |
401 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
402 | { | |
403 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
404 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
405 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
406 | Valtype reloc = ((value + addend) >> right_shift); | |
407 | ||
408 | val &= ~dst_mask; | |
409 | reloc &= dst_mask; | |
410 | ||
411 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
412 | } | |
413 | ||
414 | // Do a simple relocation using a symbol value with the addend in | |
415 | // the relocation. | |
416 | template<int valsize> | |
417 | static inline void | |
418 | rela(unsigned char* view, | |
419 | unsigned int right_shift, | |
420 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
421 | const Sized_relobj<size, big_endian>* object, | |
422 | const Symbol_value<size>* psymval, | |
423 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
424 | { | |
425 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
426 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
427 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
428 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
429 | ||
430 | val &= ~dst_mask; | |
431 | reloc &= dst_mask; | |
432 | ||
433 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
434 | } | |
435 | ||
436 | // Do a simple relocation using a symbol value with the addend in | |
437 | // the relocation, unaligned. | |
438 | template<int valsize> | |
439 | static inline void | |
440 | rela_ua(unsigned char* view, | |
441 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
442 | const Sized_relobj<size, big_endian>* object, | |
443 | const Symbol_value<size>* psymval, | |
444 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
445 | { | |
446 | typedef typename elfcpp::Swap_unaligned<valsize, | |
447 | big_endian>::Valtype Valtype; | |
448 | unsigned char* wv = view; | |
449 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
450 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
451 | ||
452 | val &= ~dst_mask; | |
453 | reloc &= dst_mask; | |
454 | ||
455 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
456 | } | |
457 | ||
458 | // Do a simple PC relative relocation with a Symbol_value with the | |
459 | // addend in the relocation. | |
460 | template<int valsize> | |
461 | static inline void | |
462 | pcrela(unsigned char* view, | |
463 | unsigned int right_shift, | |
464 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
465 | const Sized_relobj<size, big_endian>* object, | |
466 | const Symbol_value<size>* psymval, | |
467 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
468 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
469 | { | |
470 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
471 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
472 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
473 | Valtype reloc = ((psymval->value(object, addend) - address) | |
474 | >> right_shift); | |
475 | ||
476 | val &= ~dst_mask; | |
477 | reloc &= dst_mask; | |
478 | ||
479 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
480 | } | |
481 | ||
482 | template<int valsize> | |
483 | static inline void | |
484 | pcrela_unaligned(unsigned char* view, | |
485 | const Sized_relobj<size, big_endian>* object, | |
486 | const Symbol_value<size>* psymval, | |
487 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
488 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
489 | { | |
490 | typedef typename elfcpp::Swap_unaligned<valsize, | |
491 | big_endian>::Valtype Valtype; | |
492 | unsigned char* wv = view; | |
493 | Valtype reloc = (psymval->value(object, addend) - address); | |
494 | ||
495 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
496 | } | |
497 | ||
498 | typedef Sparc_relocate_functions<size, big_endian> This; | |
499 | typedef Sparc_relocate_functions<size, true> This_insn; | |
500 | ||
501 | public: | |
502 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
503 | static inline void | |
504 | wdisp30(unsigned char* view, | |
505 | const Sized_relobj<size, big_endian>* object, | |
506 | const Symbol_value<size>* psymval, | |
507 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
508 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
509 | { | |
510 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
511 | psymval, addend, address); | |
512 | } | |
513 | ||
514 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
515 | static inline void | |
516 | wdisp22(unsigned char* view, | |
517 | const Sized_relobj<size, big_endian>* object, | |
518 | const Symbol_value<size>* psymval, | |
519 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
520 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
521 | { | |
522 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
523 | psymval, addend, address); | |
524 | } | |
525 | ||
526 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
527 | static inline void | |
528 | wdisp19(unsigned char* view, | |
529 | const Sized_relobj<size, big_endian>* object, | |
530 | const Symbol_value<size>* psymval, | |
531 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
532 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
533 | { | |
534 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
535 | psymval, addend, address); | |
536 | } | |
537 | ||
538 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
539 | static inline void | |
540 | wdisp16(unsigned char* view, | |
541 | const Sized_relobj<size, big_endian>* object, | |
542 | const Symbol_value<size>* psymval, | |
543 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
544 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
545 | { | |
546 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
547 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
548 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
549 | Valtype reloc = ((psymval->value(object, addend) - address) | |
550 | >> 2); | |
551 | ||
552 | // The relocation value is split between the low 14 bits, | |
553 | // and bits 20-21. | |
554 | val &= ~((0x3 << 20) | 0x3fff); | |
555 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
556 | | (reloc & 0x3ffff)); | |
557 | ||
558 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
559 | } | |
560 | ||
561 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 | |
562 | static inline void | |
563 | pc22(unsigned char* view, | |
564 | const Sized_relobj<size, big_endian>* object, | |
565 | const Symbol_value<size>* psymval, | |
566 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
567 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
568 | { | |
569 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
570 | psymval, addend, address); | |
571 | } | |
572 | ||
573 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
574 | static inline void | |
575 | pc10(unsigned char* view, | |
576 | const Sized_relobj<size, big_endian>* object, | |
577 | const Symbol_value<size>* psymval, | |
578 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
579 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
580 | { | |
581 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
582 | psymval, addend, address); | |
583 | } | |
584 | ||
585 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
586 | static inline void | |
587 | hi22(unsigned char* view, | |
588 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
589 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
590 | { | |
591 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); | |
592 | } | |
593 | ||
594 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
595 | static inline void | |
596 | hi22(unsigned char* view, | |
597 | const Sized_relobj<size, big_endian>* object, | |
598 | const Symbol_value<size>* psymval, | |
599 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
600 | { | |
601 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
602 | } | |
603 | ||
604 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
605 | static inline void | |
606 | pcplt22(unsigned char* view, | |
607 | const Sized_relobj<size, big_endian>* object, | |
608 | const Symbol_value<size>* psymval, | |
609 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
610 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
611 | { | |
612 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
613 | psymval, addend, address); | |
614 | } | |
615 | ||
616 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
617 | static inline void | |
618 | lo10(unsigned char* view, | |
619 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
620 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
621 | { | |
622 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); | |
623 | } | |
624 | ||
625 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
626 | static inline void | |
627 | lo10(unsigned char* view, | |
628 | const Sized_relobj<size, big_endian>* object, | |
629 | const Symbol_value<size>* psymval, | |
630 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
631 | { | |
632 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
633 | } | |
634 | ||
635 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
636 | static inline void | |
637 | lo10(unsigned char* view, | |
638 | const Sized_relobj<size, big_endian>* object, | |
639 | const Symbol_value<size>* psymval, | |
640 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
641 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
642 | { | |
643 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
644 | psymval, addend, address); | |
645 | } | |
646 | ||
647 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
648 | static inline void | |
649 | olo10(unsigned char* view, | |
650 | const Sized_relobj<size, big_endian>* object, | |
651 | const Symbol_value<size>* psymval, | |
652 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
653 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
654 | { | |
655 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
656 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
657 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
658 | Valtype reloc = psymval->value(object, addend); | |
659 | ||
660 | val &= ~0x1fff; | |
661 | reloc &= 0x3ff; | |
662 | reloc += addend2; | |
663 | reloc &= 0x1fff; | |
664 | ||
665 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
666 | } | |
667 | ||
668 | // R_SPARC_22: (Symbol + Addend) | |
669 | static inline void | |
670 | rela32_22(unsigned char* view, | |
671 | const Sized_relobj<size, big_endian>* object, | |
672 | const Symbol_value<size>* psymval, | |
673 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
674 | { | |
675 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
676 | } | |
677 | ||
678 | // R_SPARC_13: (Symbol + Addend) | |
679 | static inline void | |
680 | rela32_13(unsigned char* view, | |
681 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
682 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
683 | { | |
684 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); | |
685 | } | |
686 | ||
687 | // R_SPARC_13: (Symbol + Addend) | |
688 | static inline void | |
689 | rela32_13(unsigned char* view, | |
690 | const Sized_relobj<size, big_endian>* object, | |
691 | const Symbol_value<size>* psymval, | |
692 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
693 | { | |
694 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
695 | } | |
696 | ||
697 | // R_SPARC_UA16: (Symbol + Addend) | |
698 | static inline void | |
699 | ua16(unsigned char* view, | |
700 | const Sized_relobj<size, big_endian>* object, | |
701 | const Symbol_value<size>* psymval, | |
702 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
703 | { | |
704 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
705 | } | |
706 | ||
707 | // R_SPARC_UA32: (Symbol + Addend) | |
708 | static inline void | |
709 | ua32(unsigned char* view, | |
710 | const Sized_relobj<size, big_endian>* object, | |
711 | const Symbol_value<size>* psymval, | |
712 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
713 | { | |
714 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
715 | } | |
716 | ||
717 | // R_SPARC_UA64: (Symbol + Addend) | |
718 | static inline void | |
719 | ua64(unsigned char* view, | |
720 | const Sized_relobj<size, big_endian>* object, | |
721 | const Symbol_value<size>* psymval, | |
722 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
723 | { | |
724 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
725 | object, psymval, addend); | |
726 | } | |
727 | ||
728 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
729 | static inline void | |
730 | disp8(unsigned char* view, | |
731 | const Sized_relobj<size, big_endian>* object, | |
732 | const Symbol_value<size>* psymval, | |
733 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
734 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
735 | { | |
736 | This::template pcrela_unaligned<8>(view, object, psymval, | |
737 | addend, address); | |
738 | } | |
739 | ||
740 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
741 | static inline void | |
742 | disp16(unsigned char* view, | |
743 | const Sized_relobj<size, big_endian>* object, | |
744 | const Symbol_value<size>* psymval, | |
745 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
746 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
747 | { | |
748 | This::template pcrela_unaligned<16>(view, object, psymval, | |
749 | addend, address); | |
750 | } | |
751 | ||
752 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
753 | static inline void | |
754 | disp32(unsigned char* view, | |
755 | const Sized_relobj<size, big_endian>* object, | |
756 | const Symbol_value<size>* psymval, | |
757 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
758 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
759 | { | |
760 | This::template pcrela_unaligned<32>(view, object, psymval, | |
761 | addend, address); | |
762 | } | |
763 | ||
764 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
765 | static inline void | |
766 | disp64(unsigned char* view, | |
767 | const Sized_relobj<size, big_endian>* object, | |
768 | const Symbol_value<size>* psymval, | |
769 | elfcpp::Elf_Xword addend, | |
770 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
771 | { | |
772 | This::template pcrela_unaligned<64>(view, object, psymval, | |
773 | addend, address); | |
774 | } | |
775 | ||
776 | // R_SPARC_H44: (Symbol + Addend) >> 22 | |
777 | static inline void | |
778 | h44(unsigned char* view, | |
779 | const Sized_relobj<size, big_endian>* object, | |
780 | const Symbol_value<size>* psymval, | |
781 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
782 | { | |
783 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
784 | } | |
785 | ||
786 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
787 | static inline void | |
788 | m44(unsigned char* view, | |
789 | const Sized_relobj<size, big_endian>* object, | |
790 | const Symbol_value<size>* psymval, | |
791 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
792 | { | |
793 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
794 | } | |
795 | ||
796 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
797 | static inline void | |
798 | l44(unsigned char* view, | |
799 | const Sized_relobj<size, big_endian>* object, | |
800 | const Symbol_value<size>* psymval, | |
801 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
802 | { | |
803 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
804 | } | |
805 | ||
806 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
807 | static inline void | |
808 | hh22(unsigned char* view, | |
809 | const Sized_relobj<size, big_endian>* object, | |
810 | const Symbol_value<size>* psymval, | |
811 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
812 | { | |
813 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
814 | } | |
815 | ||
816 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
817 | static inline void | |
818 | pc_hh22(unsigned char* view, | |
819 | const Sized_relobj<size, big_endian>* object, | |
820 | const Symbol_value<size>* psymval, | |
821 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
822 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
823 | { | |
824 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
825 | psymval, addend, address); | |
826 | } | |
827 | ||
828 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
829 | static inline void | |
830 | hm10(unsigned char* view, | |
831 | const Sized_relobj<size, big_endian>* object, | |
832 | const Symbol_value<size>* psymval, | |
833 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
834 | { | |
835 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
836 | } | |
837 | ||
838 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
839 | static inline void | |
840 | pc_hm10(unsigned char* view, | |
841 | const Sized_relobj<size, big_endian>* object, | |
842 | const Symbol_value<size>* psymval, | |
843 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
844 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
845 | { | |
846 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
847 | psymval, addend, address); | |
848 | } | |
849 | ||
850 | // R_SPARC_11: (Symbol + Addend) | |
851 | static inline void | |
852 | rela32_11(unsigned char* view, | |
853 | const Sized_relobj<size, big_endian>* object, | |
854 | const Symbol_value<size>* psymval, | |
855 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
856 | { | |
857 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
858 | } | |
859 | ||
860 | // R_SPARC_10: (Symbol + Addend) | |
861 | static inline void | |
862 | rela32_10(unsigned char* view, | |
863 | const Sized_relobj<size, big_endian>* object, | |
864 | const Symbol_value<size>* psymval, | |
865 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
866 | { | |
867 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
868 | } | |
869 | ||
870 | // R_SPARC_7: (Symbol + Addend) | |
871 | static inline void | |
872 | rela32_7(unsigned char* view, | |
873 | const Sized_relobj<size, big_endian>* object, | |
874 | const Symbol_value<size>* psymval, | |
875 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
876 | { | |
877 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
878 | } | |
879 | ||
880 | // R_SPARC_6: (Symbol + Addend) | |
881 | static inline void | |
882 | rela32_6(unsigned char* view, | |
883 | const Sized_relobj<size, big_endian>* object, | |
884 | const Symbol_value<size>* psymval, | |
885 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
886 | { | |
887 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
888 | } | |
889 | ||
890 | // R_SPARC_5: (Symbol + Addend) | |
891 | static inline void | |
892 | rela32_5(unsigned char* view, | |
893 | const Sized_relobj<size, big_endian>* object, | |
894 | const Symbol_value<size>* psymval, | |
895 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
896 | { | |
897 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
898 | } | |
899 | ||
900 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
901 | static inline void | |
902 | ldo_hix22(unsigned char* view, | |
903 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
904 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
905 | { | |
906 | This_insn::hi22(view, value, addend); | |
907 | } | |
908 | ||
909 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
910 | static inline void | |
911 | ldo_lox10(unsigned char* view, | |
912 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
913 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
914 | { | |
915 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
916 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
917 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
918 | Valtype reloc = (value + addend); | |
919 | ||
920 | val &= ~0x1fff; | |
921 | reloc &= 0x3ff; | |
922 | ||
923 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
924 | } | |
925 | ||
926 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
927 | static inline void | |
928 | hix22(unsigned char* view, | |
929 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
930 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
931 | { | |
932 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
933 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
934 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
935 | Valtype reloc = (value + addend); | |
936 | ||
937 | val &= ~0x3fffff; | |
938 | ||
939 | reloc ^= ~(Valtype)0; | |
940 | reloc >>= 10; | |
941 | ||
942 | reloc &= 0x3fffff; | |
943 | ||
944 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
945 | } | |
946 | ||
947 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
948 | static inline void | |
949 | hix22(unsigned char* view, | |
950 | const Sized_relobj<size, big_endian>* object, | |
951 | const Symbol_value<size>* psymval, | |
952 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
953 | { | |
954 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
955 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
956 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
957 | Valtype reloc = psymval->value(object, addend); | |
958 | ||
959 | val &= ~0x3fffff; | |
960 | ||
961 | reloc ^= ~(Valtype)0; | |
962 | reloc >>= 10; | |
963 | ||
964 | reloc &= 0x3fffff; | |
965 | ||
966 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
967 | } | |
968 | ||
969 | ||
970 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
971 | static inline void | |
972 | lox10(unsigned char* view, | |
973 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
974 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
975 | { | |
976 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
977 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
978 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
979 | Valtype reloc = (value + addend); | |
980 | ||
981 | val &= ~0x1fff; | |
982 | reloc &= 0x3ff; | |
983 | reloc |= 0x1c00; | |
984 | ||
985 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
986 | } | |
987 | ||
988 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 | |
989 | static inline void | |
990 | lox10(unsigned char* view, | |
991 | const Sized_relobj<size, big_endian>* object, | |
992 | const Symbol_value<size>* psymval, | |
993 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
994 | { | |
995 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
996 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
997 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
998 | Valtype reloc = psymval->value(object, addend); | |
999 | ||
1000 | val &= ~0x1fff; | |
1001 | reloc &= 0x3ff; | |
1002 | reloc |= 0x1c00; | |
1003 | ||
1004 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1005 | } | |
1006 | }; | |
1007 | ||
1008 | // Get the GOT section, creating it if necessary. | |
1009 | ||
1010 | template<int size, bool big_endian> | |
1011 | Output_data_got<size, big_endian>* | |
1012 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1013 | Layout* layout) | |
1014 | { | |
1015 | if (this->got_ == NULL) | |
1016 | { | |
1017 | gold_assert(symtab != NULL && layout != NULL); | |
1018 | ||
1019 | this->got_ = new Output_data_got<size, big_endian>(); | |
1020 | ||
9f1d377b ILT |
1021 | Output_section* os; |
1022 | os = layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, | |
1023 | (elfcpp::SHF_ALLOC | |
1024 | | elfcpp::SHF_WRITE), | |
1025 | this->got_); | |
1026 | os->set_is_relro(); | |
f5314dd5 DM |
1027 | |
1028 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1029 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
1030 | this->got_, | |
1031 | 0, 0, elfcpp::STT_OBJECT, | |
1032 | elfcpp::STB_LOCAL, | |
1033 | elfcpp::STV_HIDDEN, 0, | |
1034 | false, false); | |
1035 | } | |
1036 | ||
1037 | return this->got_; | |
1038 | } | |
1039 | ||
1040 | // Get the dynamic reloc section, creating it if necessary. | |
1041 | ||
1042 | template<int size, bool big_endian> | |
1043 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1044 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1045 | { | |
1046 | if (this->rela_dyn_ == NULL) | |
1047 | { | |
1048 | gold_assert(layout != NULL); | |
d98bc257 | 1049 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 DM |
1050 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
1051 | elfcpp::SHF_ALLOC, this->rela_dyn_); | |
1052 | } | |
1053 | return this->rela_dyn_; | |
1054 | } | |
1055 | ||
1056 | // A class to handle the PLT data. | |
1057 | ||
1058 | template<int size, bool big_endian> | |
1059 | class Output_data_plt_sparc : public Output_section_data | |
1060 | { | |
1061 | public: | |
1062 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1063 | size, big_endian> Reloc_section; | |
1064 | ||
1065 | Output_data_plt_sparc(Layout*); | |
1066 | ||
1067 | // Add an entry to the PLT. | |
1068 | void add_entry(Symbol* gsym); | |
1069 | ||
1070 | // Return the .rela.plt section data. | |
1071 | const Reloc_section* rel_plt() const | |
1072 | { | |
1073 | return this->rel_; | |
1074 | } | |
1075 | ||
1076 | protected: | |
1077 | void do_adjust_output_section(Output_section* os); | |
1078 | ||
7d9e3d98 ILT |
1079 | // Write to a map file. |
1080 | void | |
1081 | do_print_to_mapfile(Mapfile* mapfile) const | |
1082 | { mapfile->print_output_data(this, _("** PLT")); } | |
1083 | ||
f5314dd5 DM |
1084 | private: |
1085 | // The size of an entry in the PLT. | |
1086 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1087 | ||
1088 | static const unsigned int plt_entries_per_block = 160; | |
1089 | static const unsigned int plt_insn_chunk_size = 24; | |
1090 | static const unsigned int plt_pointer_chunk_size = 8; | |
1091 | static const unsigned int plt_block_size = | |
1092 | (plt_entries_per_block | |
1093 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1094 | ||
1095 | // Set the final size. | |
1096 | void | |
1097 | set_final_data_size() | |
1098 | { | |
1099 | unsigned int full_count = this->count_ + 4; | |
1100 | unsigned int extra = (size == 32 ? 4 : 0); | |
1101 | ||
1102 | if (size == 32 || full_count < 32768) | |
1103 | this->set_data_size((full_count * base_plt_entry_size) + extra); | |
1104 | else | |
1105 | { | |
1106 | unsigned int ext_cnt = full_count - 32768; | |
1107 | ||
1108 | this->set_data_size((32768 * base_plt_entry_size) | |
1109 | + (ext_cnt | |
1110 | * (plt_insn_chunk_size | |
1111 | + plt_pointer_chunk_size))); | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | // Write out the PLT data. | |
1116 | void | |
1117 | do_write(Output_file*); | |
1118 | ||
1119 | // The reloc section. | |
1120 | Reloc_section* rel_; | |
1121 | // The number of PLT entries. | |
1122 | unsigned int count_; | |
1123 | }; | |
1124 | ||
4f2a9edd ILT |
1125 | // Define the constants as required by C++ standard. |
1126 | ||
1127 | template<int size, bool big_endian> | |
1128 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1129 | ||
1130 | template<int size, bool big_endian> | |
1131 | const unsigned int | |
1132 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1133 | ||
1134 | template<int size, bool big_endian> | |
1135 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1136 | ||
1137 | template<int size, bool big_endian> | |
1138 | const unsigned int | |
1139 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1140 | ||
1141 | template<int size, bool big_endian> | |
1142 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1143 | ||
f5314dd5 DM |
1144 | // Create the PLT section. The ordinary .got section is an argument, |
1145 | // since we need to refer to the start. | |
1146 | ||
1147 | template<int size, bool big_endian> | |
1148 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
1149 | : Output_section_data(size == 32 ? 4 : 8), count_(0) | |
1150 | { | |
d98bc257 | 1151 | this->rel_ = new Reloc_section(false); |
f5314dd5 DM |
1152 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
1153 | elfcpp::SHF_ALLOC, this->rel_); | |
1154 | } | |
1155 | ||
1156 | template<int size, bool big_endian> | |
1157 | void | |
1158 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1159 | { | |
1160 | os->set_entsize(0); | |
1161 | } | |
1162 | ||
1163 | // Add an entry to the PLT. | |
1164 | ||
1165 | template<int size, bool big_endian> | |
1166 | void | |
1167 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol* gsym) | |
1168 | { | |
1169 | gold_assert(!gsym->has_plt_offset()); | |
1170 | ||
1171 | unsigned int index = this->count_ + 4; | |
1172 | section_offset_type plt_offset; | |
1173 | ||
1174 | if (size == 32 || index < 32768) | |
1175 | plt_offset = index * base_plt_entry_size; | |
1176 | else | |
1177 | { | |
1178 | unsigned int ext_index = index - 32768; | |
1179 | ||
1180 | plt_offset = (32768 * base_plt_entry_size) | |
1181 | + ((ext_index / plt_entries_per_block) | |
1182 | * plt_block_size) | |
1183 | + ((ext_index % plt_entries_per_block) | |
1184 | * plt_insn_chunk_size); | |
1185 | } | |
1186 | ||
1187 | gsym->set_plt_offset(plt_offset); | |
1188 | ||
1189 | ++this->count_; | |
1190 | ||
1191 | // Every PLT entry needs a reloc. | |
1192 | gsym->set_needs_dynsym_entry(); | |
1193 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1194 | plt_offset, 0); | |
1195 | ||
1196 | // Note that we don't need to save the symbol. The contents of the | |
1197 | // PLT are independent of which symbols are used. The symbols only | |
1198 | // appear in the relocations. | |
1199 | } | |
1200 | ||
1201 | static const unsigned int sparc_nop = 0x01000000; | |
1202 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1203 | static const unsigned int sparc_branch_always = 0x30800000; | |
1204 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1205 | static const unsigned int sparc_mov = 0x80100000; | |
1206 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1207 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1208 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1209 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1210 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1211 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1212 | ||
1213 | // Write out the PLT. | |
1214 | ||
1215 | template<int size, bool big_endian> | |
1216 | void | |
1217 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1218 | { | |
1219 | const off_t offset = this->offset(); | |
1220 | const section_size_type oview_size = | |
1221 | convert_to_section_size_type(this->data_size()); | |
1222 | unsigned char* const oview = of->get_output_view(offset, oview_size); | |
1223 | unsigned char* pov = oview; | |
1224 | ||
1225 | memset(pov, 0, base_plt_entry_size * 4); | |
1226 | pov += base_plt_entry_size * 4; | |
1227 | ||
1228 | unsigned int plt_offset = base_plt_entry_size * 4; | |
1229 | const unsigned int count = this->count_; | |
1230 | ||
1231 | if (size == 64) | |
1232 | { | |
1233 | unsigned int limit; | |
1234 | ||
1235 | limit = (count > 32768 ? 32768 : count); | |
1236 | ||
1237 | for (unsigned int i = 0; i < limit; ++i) | |
1238 | { | |
1239 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1240 | sparc_sethi_g1 + plt_offset); | |
1241 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1242 | sparc_branch_always_pt + | |
1243 | (((base_plt_entry_size - | |
1244 | (plt_offset + 4)) >> 2) & | |
1245 | 0x7ffff)); | |
1246 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1247 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1248 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1249 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1250 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1251 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1252 | ||
1253 | pov += base_plt_entry_size; | |
1254 | plt_offset += base_plt_entry_size; | |
1255 | } | |
1256 | ||
1257 | if (count > 32768) | |
1258 | { | |
1259 | unsigned int ext_cnt = count - 32768; | |
1260 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1261 | ||
1262 | for (unsigned int i = 0; i < blks; ++i) | |
1263 | { | |
1264 | unsigned int data_off = (plt_entries_per_block | |
1265 | * plt_insn_chunk_size) - 4; | |
1266 | ||
1267 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1268 | { | |
1269 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1270 | sparc_mov_o7_g5); | |
1271 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1272 | sparc_call_plus_8); | |
1273 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1274 | sparc_nop); | |
1275 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1276 | sparc_ldx_o7_imm_g1 + | |
1277 | (data_off & 0x1fff)); | |
1278 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1279 | sparc_jmpl_o7_g1_g1); | |
1280 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1281 | sparc_mov_g5_o7); | |
1282 | ||
1283 | elfcpp::Swap<64, big_endian>::writeval( | |
1284 | pov + 0x4 + data_off, | |
1285 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1286 | ||
1287 | pov += plt_insn_chunk_size; | |
1288 | data_off -= 16; | |
1289 | } | |
1290 | } | |
1291 | ||
1292 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1293 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1294 | { | |
1295 | unsigned int data_off = (sub_blk_cnt | |
1296 | * plt_insn_chunk_size) - 4; | |
1297 | ||
1298 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1299 | { | |
1300 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1301 | sparc_mov_o7_g5); | |
1302 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1303 | sparc_call_plus_8); | |
1304 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1305 | sparc_nop); | |
1306 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1307 | sparc_ldx_o7_imm_g1 + | |
1308 | (data_off & 0x1fff)); | |
1309 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1310 | sparc_jmpl_o7_g1_g1); | |
1311 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1312 | sparc_mov_g5_o7); | |
1313 | ||
1314 | elfcpp::Swap<64, big_endian>::writeval( | |
1315 | pov + 0x4 + data_off, | |
1316 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1317 | ||
1318 | pov += plt_insn_chunk_size; | |
1319 | data_off -= 16; | |
1320 | } | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | else | |
1325 | { | |
1326 | for (unsigned int i = 0; i < count; ++i) | |
1327 | { | |
1328 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1329 | sparc_sethi_g1 + plt_offset); | |
1330 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1331 | sparc_branch_always + | |
1332 | (((- (plt_offset + 4)) >> 2) & | |
1333 | 0x003fffff)); | |
1334 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1335 | ||
1336 | pov += base_plt_entry_size; | |
1337 | plt_offset += base_plt_entry_size; | |
1338 | } | |
1339 | ||
1340 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1341 | pov += 4; | |
1342 | } | |
1343 | ||
1344 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1345 | ||
1346 | of->write_output_view(offset, oview_size, oview); | |
1347 | } | |
1348 | ||
1349 | // Create a PLT entry for a global symbol. | |
1350 | ||
1351 | template<int size, bool big_endian> | |
1352 | void | |
1353 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1354 | Layout* layout, | |
1355 | Symbol* gsym) | |
1356 | { | |
1357 | if (gsym->has_plt_offset()) | |
1358 | return; | |
1359 | ||
1360 | if (this->plt_ == NULL) | |
1361 | { | |
1362 | // Create the GOT sections first. | |
1363 | this->got_section(symtab, layout); | |
1364 | ||
1365 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); | |
1366 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1367 | (elfcpp::SHF_ALLOC | |
1368 | | elfcpp::SHF_EXECINSTR | |
1369 | | elfcpp::SHF_WRITE), | |
1370 | this->plt_); | |
1371 | ||
1372 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1373 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
1374 | this->plt_, | |
1375 | 0, 0, elfcpp::STT_OBJECT, | |
1376 | elfcpp::STB_LOCAL, | |
1377 | elfcpp::STV_HIDDEN, 0, | |
1378 | false, false); | |
1379 | } | |
1380 | ||
1381 | this->plt_->add_entry(gsym); | |
1382 | } | |
1383 | ||
1384 | // Create a GOT entry for the TLS module index. | |
1385 | ||
1386 | template<int size, bool big_endian> | |
1387 | unsigned int | |
1388 | Target_sparc<size, big_endian>::got_mod_index_entry(Symbol_table* symtab, | |
1389 | Layout* layout, | |
1390 | Sized_relobj<size, big_endian>* object) | |
1391 | { | |
1392 | if (this->got_mod_index_offset_ == -1U) | |
1393 | { | |
1394 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1395 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1396 | Output_data_got<size, big_endian>* got; | |
1397 | unsigned int got_offset; | |
1398 | ||
1399 | got = this->got_section(symtab, layout); | |
1400 | got_offset = got->add_constant(0); | |
1401 | rela_dyn->add_local(object, 0, | |
1402 | (size == 64 ? | |
1403 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1404 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1405 | got_offset, 0); | |
1406 | got->add_constant(0); | |
1407 | this->got_mod_index_offset_ = got_offset; | |
1408 | } | |
1409 | return this->got_mod_index_offset_; | |
1410 | } | |
1411 | ||
f5314dd5 DM |
1412 | // Optimize the TLS relocation type based on what we know about the |
1413 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1414 | // known at link time. | |
1415 | ||
1416 | static tls::Tls_optimization | |
1417 | optimize_tls_reloc(bool is_final, int r_type) | |
1418 | { | |
1419 | // If we are generating a shared library, then we can't do anything | |
1420 | // in the linker. | |
1421 | if (parameters->options().shared()) | |
1422 | return tls::TLSOPT_NONE; | |
1423 | ||
1424 | switch (r_type) | |
1425 | { | |
1426 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1427 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1428 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1429 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1430 | // These are General-Dynamic which permits fully general TLS | |
1431 | // access. Since we know that we are generating an executable, | |
1432 | // we can convert this to Initial-Exec. If we also know that | |
1433 | // this is a local symbol, we can further switch to Local-Exec. | |
1434 | if (is_final) | |
1435 | return tls::TLSOPT_TO_LE; | |
1436 | return tls::TLSOPT_TO_IE; | |
1437 | ||
1438 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1439 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1440 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1441 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1442 | // This is Local-Dynamic, which refers to a local symbol in the | |
1443 | // dynamic TLS block. Since we know that we generating an | |
1444 | // executable, we can switch to Local-Exec. | |
1445 | return tls::TLSOPT_TO_LE; | |
1446 | ||
1447 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1448 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1449 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1450 | // Another type of Local-Dynamic relocation. | |
1451 | return tls::TLSOPT_TO_LE; | |
1452 | ||
1453 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1454 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1455 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1456 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1457 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1458 | // These are Initial-Exec relocs which get the thread offset |
1459 | // from the GOT. If we know that we are linking against the | |
1460 | // local symbol, we can switch to Local-Exec, which links the | |
1461 | // thread offset into the instruction. | |
1462 | if (is_final) | |
1463 | return tls::TLSOPT_TO_LE; | |
1464 | return tls::TLSOPT_NONE; | |
1465 | ||
1466 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1467 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1468 | // When we already have Local-Exec, there is nothing further we | |
1469 | // can do. | |
1470 | return tls::TLSOPT_NONE; | |
1471 | ||
1472 | default: | |
1473 | gold_unreachable(); | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | // Generate a PLT entry slot for a call to __tls_get_addr | |
1478 | template<int size, bool big_endian> | |
1479 | void | |
1480 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
1481 | Layout* layout, | |
1482 | Target_sparc<size, big_endian>* target) | |
1483 | { | |
1484 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
1485 | ||
1486 | target->make_plt_entry(symtab, layout, gsym); | |
1487 | } | |
1488 | ||
1489 | // Report an unsupported relocation against a local symbol. | |
1490 | ||
1491 | template<int size, bool big_endian> | |
1492 | void | |
1493 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
1494 | Sized_relobj<size, big_endian>* object, | |
1495 | unsigned int r_type) | |
1496 | { | |
1497 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
1498 | object->name().c_str(), r_type); | |
1499 | } | |
1500 | ||
32b769e1 DM |
1501 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
1502 | // dynamic linker does not support it, issue an error. | |
1503 | ||
1504 | template<int size, bool big_endian> | |
1505 | void | |
1506 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
1507 | { | |
1508 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
1509 | ||
1510 | if (size == 64) | |
1511 | { | |
1512 | switch (r_type) | |
1513 | { | |
1514 | // These are the relocation types supported by glibc for sparc 64-bit. | |
1515 | case elfcpp::R_SPARC_RELATIVE: | |
1516 | case elfcpp::R_SPARC_COPY: | |
1517 | case elfcpp::R_SPARC_64: | |
1518 | case elfcpp::R_SPARC_GLOB_DAT: | |
1519 | case elfcpp::R_SPARC_JMP_SLOT: | |
1520 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1521 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1522 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1523 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1524 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1525 | case elfcpp::R_SPARC_8: | |
1526 | case elfcpp::R_SPARC_16: | |
1527 | case elfcpp::R_SPARC_DISP8: | |
1528 | case elfcpp::R_SPARC_DISP16: | |
1529 | case elfcpp::R_SPARC_DISP32: | |
1530 | case elfcpp::R_SPARC_WDISP30: | |
1531 | case elfcpp::R_SPARC_LO10: | |
1532 | case elfcpp::R_SPARC_HI22: | |
1533 | case elfcpp::R_SPARC_OLO10: | |
1534 | case elfcpp::R_SPARC_H44: | |
1535 | case elfcpp::R_SPARC_M44: | |
1536 | case elfcpp::R_SPARC_L44: | |
1537 | case elfcpp::R_SPARC_HH22: | |
1538 | case elfcpp::R_SPARC_HM10: | |
1539 | case elfcpp::R_SPARC_LM22: | |
1540 | case elfcpp::R_SPARC_UA16: | |
1541 | case elfcpp::R_SPARC_UA32: | |
1542 | case elfcpp::R_SPARC_UA64: | |
1543 | return; | |
1544 | ||
1545 | default: | |
1546 | break; | |
1547 | } | |
1548 | } | |
1549 | else | |
1550 | { | |
1551 | switch (r_type) | |
1552 | { | |
1553 | // These are the relocation types supported by glibc for sparc 32-bit. | |
1554 | case elfcpp::R_SPARC_RELATIVE: | |
1555 | case elfcpp::R_SPARC_COPY: | |
1556 | case elfcpp::R_SPARC_GLOB_DAT: | |
1557 | case elfcpp::R_SPARC_32: | |
1558 | case elfcpp::R_SPARC_JMP_SLOT: | |
1559 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1560 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1561 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1562 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1563 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1564 | case elfcpp::R_SPARC_8: | |
1565 | case elfcpp::R_SPARC_16: | |
1566 | case elfcpp::R_SPARC_DISP8: | |
1567 | case elfcpp::R_SPARC_DISP16: | |
1568 | case elfcpp::R_SPARC_DISP32: | |
1569 | case elfcpp::R_SPARC_LO10: | |
1570 | case elfcpp::R_SPARC_WDISP30: | |
1571 | case elfcpp::R_SPARC_HI22: | |
1572 | case elfcpp::R_SPARC_UA16: | |
1573 | case elfcpp::R_SPARC_UA32: | |
1574 | return; | |
1575 | ||
1576 | default: | |
1577 | break; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | // This prevents us from issuing more than one error per reloc | |
1582 | // section. But we can still wind up issuing more than one | |
1583 | // error per object file. | |
1584 | if (this->issued_non_pic_error_) | |
1585 | return; | |
33aea2fd | 1586 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
1587 | object->error(_("requires unsupported dynamic reloc; " |
1588 | "recompile with -fPIC")); | |
1589 | this->issued_non_pic_error_ = true; | |
1590 | return; | |
1591 | } | |
1592 | ||
f5314dd5 DM |
1593 | // Scan a relocation for a local symbol. |
1594 | ||
1595 | template<int size, bool big_endian> | |
1596 | inline void | |
1597 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
1598 | Symbol_table* symtab, |
1599 | Layout* layout, | |
1600 | Target_sparc<size, big_endian>* target, | |
1601 | Sized_relobj<size, big_endian>* object, | |
1602 | unsigned int data_shndx, | |
1603 | Output_section* output_section, | |
1604 | const elfcpp::Rela<size, big_endian>& reloc, | |
1605 | unsigned int r_type, | |
1606 | const elfcpp::Sym<size, big_endian>& lsym) | |
1607 | { | |
1608 | unsigned int orig_r_type = r_type; | |
1609 | ||
1610 | r_type &= 0xff; | |
1611 | switch (r_type) | |
1612 | { | |
1613 | case elfcpp::R_SPARC_NONE: | |
1614 | case elfcpp::R_SPARC_REGISTER: | |
1615 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1616 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1617 | break; | |
1618 | ||
1619 | case elfcpp::R_SPARC_64: | |
1620 | case elfcpp::R_SPARC_32: | |
1621 | // If building a shared library (or a position-independent | |
1622 | // executable), we need to create a dynamic relocation for | |
1623 | // this location. The relocation applied at link time will | |
1624 | // apply the link-time value, so we flag the location with | |
1625 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
1626 | // relocate it easily. | |
1627 | if (parameters->options().output_is_position_independent()) | |
1628 | { | |
1629 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1630 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1631 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
1632 | output_section, data_shndx, | |
1633 | reloc.get_r_offset(), | |
1634 | reloc.get_r_addend()); | |
1635 | } | |
1636 | break; | |
1637 | ||
1638 | case elfcpp::R_SPARC_HIX22: | |
1639 | case elfcpp::R_SPARC_LOX10: | |
1640 | case elfcpp::R_SPARC_H44: | |
1641 | case elfcpp::R_SPARC_M44: | |
1642 | case elfcpp::R_SPARC_L44: | |
1643 | case elfcpp::R_SPARC_HH22: | |
1644 | case elfcpp::R_SPARC_HM10: | |
1645 | case elfcpp::R_SPARC_LM22: | |
1646 | case elfcpp::R_SPARC_UA64: | |
1647 | case elfcpp::R_SPARC_UA32: | |
1648 | case elfcpp::R_SPARC_UA16: | |
1649 | case elfcpp::R_SPARC_HI22: | |
1650 | case elfcpp::R_SPARC_LO10: | |
1651 | case elfcpp::R_SPARC_OLO10: | |
1652 | case elfcpp::R_SPARC_16: | |
1653 | case elfcpp::R_SPARC_11: | |
1654 | case elfcpp::R_SPARC_10: | |
1655 | case elfcpp::R_SPARC_8: | |
1656 | case elfcpp::R_SPARC_7: | |
1657 | case elfcpp::R_SPARC_6: | |
1658 | case elfcpp::R_SPARC_5: | |
1659 | // If building a shared library (or a position-independent | |
1660 | // executable), we need to create a dynamic relocation for | |
1661 | // this location. | |
1662 | if (parameters->options().output_is_position_independent()) | |
1663 | { | |
1664 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 DM |
1665 | |
1666 | check_non_pic(object, r_type); | |
f5314dd5 DM |
1667 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
1668 | { | |
1669 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1670 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, | |
1671 | data_shndx, reloc.get_r_offset(), | |
1672 | reloc.get_r_addend()); | |
1673 | } | |
1674 | else | |
1675 | { | |
1676 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1677 | gold_assert(lsym.get_st_value() == 0); | |
1678 | rela_dyn->add_local_relative(object, r_sym, orig_r_type, | |
1679 | output_section, data_shndx, | |
1680 | reloc.get_r_offset(), | |
1681 | reloc.get_r_addend()); | |
1682 | } | |
1683 | } | |
1684 | break; | |
1685 | ||
1686 | case elfcpp::R_SPARC_WDISP30: | |
1687 | case elfcpp::R_SPARC_WDISP22: | |
1688 | case elfcpp::R_SPARC_WDISP19: | |
1689 | case elfcpp::R_SPARC_WDISP16: | |
1690 | case elfcpp::R_SPARC_DISP8: | |
1691 | case elfcpp::R_SPARC_DISP16: | |
1692 | case elfcpp::R_SPARC_DISP32: | |
1693 | case elfcpp::R_SPARC_DISP64: | |
1694 | case elfcpp::R_SPARC_PC10: | |
1695 | case elfcpp::R_SPARC_PC22: | |
1696 | break; | |
1697 | ||
1698 | case elfcpp::R_SPARC_GOT10: | |
1699 | case elfcpp::R_SPARC_GOT13: | |
1700 | case elfcpp::R_SPARC_GOT22: | |
1701 | { | |
1702 | // The symbol requires a GOT entry. | |
1703 | Output_data_got<size, big_endian>* got; | |
1704 | unsigned int r_sym; | |
1705 | ||
1706 | got = target->got_section(symtab, layout); | |
1707 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1708 | ||
1709 | // If we are generating a shared object, we need to add a | |
1710 | // dynamic relocation for this symbol's GOT entry. | |
1711 | if (parameters->options().output_is_position_independent()) | |
1712 | { | |
1713 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
1714 | { | |
1715 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1716 | unsigned int off; | |
1717 | ||
1718 | off = got->add_constant(0); | |
1719 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); | |
1720 | rela_dyn->add_local_relative(object, r_sym, | |
1721 | elfcpp::R_SPARC_RELATIVE, | |
1722 | got, off, 0); | |
1723 | } | |
1724 | } | |
1725 | else | |
1726 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
1727 | } | |
1728 | break; | |
1729 | ||
1730 | // These are initial TLS relocs, which are expected when | |
1731 | // linking. | |
1732 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1733 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1734 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1735 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1736 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
1737 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1738 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1739 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1740 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1741 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1742 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1743 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1744 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1745 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1746 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1747 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1748 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
1749 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1750 | { | |
1751 | bool output_is_shared = parameters->options().shared(); | |
1752 | const tls::Tls_optimization optimized_type | |
1753 | = optimize_tls_reloc(!output_is_shared, r_type); | |
1754 | switch (r_type) | |
1755 | { | |
1756 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1757 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1758 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1759 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1760 | if (optimized_type == tls::TLSOPT_NONE) | |
1761 | { | |
1762 | // Create a pair of GOT entries for the module index and | |
1763 | // dtv-relative offset. | |
1764 | Output_data_got<size, big_endian>* got | |
1765 | = target->got_section(symtab, layout); | |
1766 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
1767 | unsigned int shndx = lsym.get_st_shndx(); |
1768 | bool is_ordinary; | |
1769 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
1770 | if (!is_ordinary) | |
1771 | object->error(_("local symbol %u has bad shndx %u"), | |
1772 | r_sym, shndx); | |
1773 | else | |
1774 | got->add_local_pair_with_rela(object, r_sym, | |
1775 | lsym.get_st_shndx(), | |
1776 | GOT_TYPE_TLS_PAIR, | |
1777 | target->rela_dyn_section(layout), | |
1778 | (size == 64 | |
1779 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
1780 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
1781 | 0); | |
f5314dd5 DM |
1782 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
1783 | generate_tls_call(symtab, layout, target); | |
1784 | } | |
1785 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1786 | unsupported_reloc_local(object, r_type); | |
1787 | break; | |
1788 | ||
1789 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
1790 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1791 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1792 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1793 | if (optimized_type == tls::TLSOPT_NONE) | |
1794 | { | |
1795 | // Create a GOT entry for the module index. | |
1796 | target->got_mod_index_entry(symtab, layout, object); | |
1797 | ||
1798 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
1799 | generate_tls_call(symtab, layout, target); | |
1800 | } | |
1801 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1802 | unsupported_reloc_local(object, r_type); | |
1803 | break; | |
1804 | ||
1805 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1806 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1807 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1808 | break; | |
1809 | ||
1810 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1811 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1812 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1813 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1814 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1815 | layout->set_has_static_tls(); |
1816 | if (optimized_type == tls::TLSOPT_NONE) | |
1817 | { | |
1818 | // Create a GOT entry for the tp-relative offset. | |
1819 | Output_data_got<size, big_endian>* got | |
1820 | = target->got_section(symtab, layout); | |
1821 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1822 | ||
1823 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
1824 | { | |
1825 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1826 | unsigned int off = got->add_constant(0); | |
1827 | ||
1828 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, | |
1829 | off); | |
1830 | rela_dyn->add_local_relative(object, r_sym, | |
1831 | (size == 64 ? | |
1832 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
1833 | elfcpp::R_SPARC_TLS_TPOFF32), | |
1834 | got, off, 0); | |
1835 | } | |
1836 | } | |
1837 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
1838 | unsupported_reloc_local(object, r_type); | |
1839 | break; | |
1840 | ||
1841 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1842 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1843 | layout->set_has_static_tls(); | |
1844 | if (output_is_shared) | |
1845 | { | |
1846 | // We need to create a dynamic relocation. | |
1847 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
1848 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1849 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1850 | rela_dyn->add_local_relative(object, r_sym, r_type, | |
1851 | output_section, data_shndx, | |
1852 | reloc.get_r_offset(), 0); | |
1853 | } | |
1854 | break; | |
1855 | } | |
1856 | } | |
1857 | break; | |
1858 | ||
1859 | // These are relocations which should only be seen by the | |
1860 | // dynamic linker, and should never be seen here. | |
1861 | case elfcpp::R_SPARC_COPY: | |
1862 | case elfcpp::R_SPARC_GLOB_DAT: | |
1863 | case elfcpp::R_SPARC_JMP_SLOT: | |
1864 | case elfcpp::R_SPARC_RELATIVE: | |
1865 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1866 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1867 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1868 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1869 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1870 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1871 | gold_error(_("%s: unexpected reloc %u in object file"), | |
1872 | object->name().c_str(), r_type); | |
1873 | break; | |
1874 | ||
1875 | default: | |
1876 | unsupported_reloc_local(object, r_type); | |
1877 | break; | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | // Report an unsupported relocation against a global symbol. | |
1882 | ||
1883 | template<int size, bool big_endian> | |
1884 | void | |
1885 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
1886 | Sized_relobj<size, big_endian>* object, | |
1887 | unsigned int r_type, | |
1888 | Symbol* gsym) | |
1889 | { | |
1890 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
1891 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
1892 | } | |
1893 | ||
1894 | // Scan a relocation for a global symbol. | |
1895 | ||
1896 | template<int size, bool big_endian> | |
1897 | inline void | |
1898 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
1899 | Symbol_table* symtab, |
1900 | Layout* layout, | |
1901 | Target_sparc<size, big_endian>* target, | |
1902 | Sized_relobj<size, big_endian>* object, | |
1903 | unsigned int data_shndx, | |
1904 | Output_section* output_section, | |
1905 | const elfcpp::Rela<size, big_endian>& reloc, | |
1906 | unsigned int r_type, | |
1907 | Symbol* gsym) | |
1908 | { | |
1909 | unsigned int orig_r_type = r_type; | |
1910 | ||
9efe6174 ILT |
1911 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
1912 | // section. We check here to avoid creating a dynamic reloc against | |
1913 | // _GLOBAL_OFFSET_TABLE_. | |
1914 | if (!target->has_got_section() | |
1915 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
1916 | target->got_section(symtab, layout); | |
1917 | ||
f5314dd5 DM |
1918 | r_type &= 0xff; |
1919 | switch (r_type) | |
1920 | { | |
1921 | case elfcpp::R_SPARC_NONE: | |
1922 | case elfcpp::R_SPARC_REGISTER: | |
1923 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1924 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1925 | break; | |
1926 | ||
1927 | case elfcpp::R_SPARC_PLT64: | |
1928 | case elfcpp::R_SPARC_PLT32: | |
1929 | case elfcpp::R_SPARC_HIPLT22: | |
1930 | case elfcpp::R_SPARC_LOPLT10: | |
1931 | case elfcpp::R_SPARC_PCPLT32: | |
1932 | case elfcpp::R_SPARC_PCPLT22: | |
1933 | case elfcpp::R_SPARC_PCPLT10: | |
1934 | case elfcpp::R_SPARC_WPLT30: | |
1935 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
1936 | // Otherwise we need a PLT entry. | |
1937 | if (gsym->final_value_is_known()) | |
1938 | break; | |
1939 | // If building a shared library, we can also skip the PLT entry | |
1940 | // if the symbol is defined in the output file and is protected | |
1941 | // or hidden. | |
1942 | if (gsym->is_defined() | |
1943 | && !gsym->is_from_dynobj() | |
1944 | && !gsym->is_preemptible()) | |
1945 | break; | |
1946 | target->make_plt_entry(symtab, layout, gsym); | |
1947 | break; | |
1948 | ||
1949 | case elfcpp::R_SPARC_DISP8: | |
1950 | case elfcpp::R_SPARC_DISP16: | |
1951 | case elfcpp::R_SPARC_DISP32: | |
1952 | case elfcpp::R_SPARC_DISP64: | |
1953 | case elfcpp::R_SPARC_PC_HH22: | |
1954 | case elfcpp::R_SPARC_PC_HM10: | |
1955 | case elfcpp::R_SPARC_PC_LM22: | |
1956 | case elfcpp::R_SPARC_PC10: | |
1957 | case elfcpp::R_SPARC_PC22: | |
1958 | case elfcpp::R_SPARC_WDISP30: | |
1959 | case elfcpp::R_SPARC_WDISP22: | |
1960 | case elfcpp::R_SPARC_WDISP19: | |
1961 | case elfcpp::R_SPARC_WDISP16: | |
1962 | { | |
1963 | if (gsym->needs_plt_entry()) | |
1964 | target->make_plt_entry(symtab, layout, gsym); | |
1965 | // Make a dynamic relocation if necessary. | |
1966 | int flags = Symbol::NON_PIC_REF; | |
1967 | if (gsym->type() == elfcpp::STT_FUNC) | |
1968 | flags |= Symbol::FUNCTION_CALL; | |
1969 | if (gsym->needs_dynamic_reloc(flags)) | |
1970 | { | |
966d4097 | 1971 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 1972 | { |
12c0daef | 1973 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
1974 | data_shndx, output_section, gsym, |
1975 | reloc); | |
1976 | } | |
1977 | else | |
1978 | { | |
1979 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 1980 | check_non_pic(object, r_type); |
f5314dd5 DM |
1981 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
1982 | data_shndx, reloc.get_r_offset(), | |
1983 | reloc.get_r_addend()); | |
1984 | } | |
1985 | } | |
1986 | } | |
1987 | break; | |
1988 | ||
1989 | case elfcpp::R_SPARC_UA64: | |
1990 | case elfcpp::R_SPARC_64: | |
1991 | case elfcpp::R_SPARC_HIX22: | |
1992 | case elfcpp::R_SPARC_LOX10: | |
1993 | case elfcpp::R_SPARC_H44: | |
1994 | case elfcpp::R_SPARC_M44: | |
1995 | case elfcpp::R_SPARC_L44: | |
1996 | case elfcpp::R_SPARC_HH22: | |
1997 | case elfcpp::R_SPARC_HM10: | |
1998 | case elfcpp::R_SPARC_LM22: | |
1999 | case elfcpp::R_SPARC_HI22: | |
2000 | case elfcpp::R_SPARC_LO10: | |
2001 | case elfcpp::R_SPARC_OLO10: | |
2002 | case elfcpp::R_SPARC_UA32: | |
2003 | case elfcpp::R_SPARC_32: | |
2004 | case elfcpp::R_SPARC_UA16: | |
2005 | case elfcpp::R_SPARC_16: | |
2006 | case elfcpp::R_SPARC_11: | |
2007 | case elfcpp::R_SPARC_10: | |
2008 | case elfcpp::R_SPARC_8: | |
2009 | case elfcpp::R_SPARC_7: | |
2010 | case elfcpp::R_SPARC_6: | |
2011 | case elfcpp::R_SPARC_5: | |
2012 | { | |
2013 | // Make a PLT entry if necessary. | |
2014 | if (gsym->needs_plt_entry()) | |
2015 | { | |
2016 | target->make_plt_entry(symtab, layout, gsym); | |
2017 | // Since this is not a PC-relative relocation, we may be | |
2018 | // taking the address of a function. In that case we need to | |
2019 | // set the entry in the dynamic symbol table to the address of | |
2020 | // the PLT entry. | |
2021 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2022 | gsym->set_needs_dynsym_value(); | |
2023 | } | |
2024 | // Make a dynamic relocation if necessary. | |
2025 | if (gsym->needs_dynamic_reloc(Symbol::ABSOLUTE_REF)) | |
2026 | { | |
966d4097 | 2027 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2028 | { |
12c0daef | 2029 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2030 | data_shndx, output_section, gsym, reloc); |
2031 | } | |
2032 | else if ((r_type == elfcpp::R_SPARC_32 | |
2033 | || r_type == elfcpp::R_SPARC_64) | |
2034 | && gsym->can_use_relative_reloc(false)) | |
2035 | { | |
2036 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2037 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2038 | output_section, object, | |
2039 | data_shndx, reloc.get_r_offset(), | |
2040 | reloc.get_r_addend()); | |
2041 | } | |
2042 | else | |
2043 | { | |
2044 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2045 | ||
32b769e1 | 2046 | check_non_pic(object, r_type); |
f5314dd5 DM |
2047 | if (gsym->is_from_dynobj() |
2048 | || gsym->is_undefined() | |
2049 | || gsym->is_preemptible()) | |
2050 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2051 | object, data_shndx, | |
2052 | reloc.get_r_offset(), | |
2053 | reloc.get_r_addend()); | |
2054 | else | |
2055 | rela_dyn->add_global_relative(gsym, orig_r_type, | |
2056 | output_section, object, | |
2057 | data_shndx, | |
2058 | reloc.get_r_offset(), | |
2059 | reloc.get_r_addend()); | |
2060 | } | |
2061 | } | |
2062 | } | |
2063 | break; | |
2064 | ||
2065 | case elfcpp::R_SPARC_GOT10: | |
2066 | case elfcpp::R_SPARC_GOT13: | |
2067 | case elfcpp::R_SPARC_GOT22: | |
2068 | { | |
2069 | // The symbol requires a GOT entry. | |
2070 | Output_data_got<size, big_endian>* got; | |
2071 | ||
2072 | got = target->got_section(symtab, layout); | |
2073 | if (gsym->final_value_is_known()) | |
2074 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2075 | else | |
2076 | { | |
2077 | // If this symbol is not fully resolved, we need to add a | |
2078 | // dynamic relocation for it. | |
2079 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2080 | if (gsym->is_from_dynobj() | |
2081 | || gsym->is_undefined() | |
2082 | || gsym->is_preemptible()) | |
2083 | got->add_global_with_rela(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2084 | elfcpp::R_SPARC_GLOB_DAT); | |
2085 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) | |
2086 | { | |
2087 | unsigned int off = got->add_constant(0); | |
2088 | ||
2089 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
2090 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2091 | got, off, 0); | |
2092 | } | |
2093 | } | |
2094 | } | |
2095 | break; | |
2096 | ||
2097 | // These are initial tls relocs, which are expected when | |
2098 | // linking. | |
2099 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2100 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2101 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2102 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2103 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2104 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2105 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2106 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2107 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2108 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2109 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2110 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2111 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2112 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2113 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2114 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2115 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2116 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2117 | { |
2118 | const bool is_final = gsym->final_value_is_known(); | |
2119 | const tls::Tls_optimization optimized_type | |
2120 | = optimize_tls_reloc(is_final, r_type); | |
2121 | switch (r_type) | |
2122 | { | |
2123 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2124 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2125 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2126 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2127 | if (optimized_type == tls::TLSOPT_NONE) | |
2128 | { | |
2129 | // Create a pair of GOT entries for the module index and | |
2130 | // dtv-relative offset. | |
2131 | Output_data_got<size, big_endian>* got | |
2132 | = target->got_section(symtab, layout); | |
2133 | got->add_global_pair_with_rela(gsym, GOT_TYPE_TLS_PAIR, | |
2134 | target->rela_dyn_section(layout), | |
2135 | (size == 64 ? | |
2136 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
2137 | elfcpp::R_SPARC_TLS_DTPMOD32), | |
2138 | (size == 64 ? | |
2139 | elfcpp::R_SPARC_TLS_DTPOFF64 : | |
2140 | elfcpp::R_SPARC_TLS_DTPOFF32)); | |
2141 | ||
2142 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2143 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2144 | generate_tls_call(symtab, layout, target); | |
2145 | } | |
2146 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2147 | { | |
2148 | // Create a GOT entry for the tp-relative offset. | |
2149 | Output_data_got<size, big_endian>* got | |
2150 | = target->got_section(symtab, layout); | |
2151 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2152 | target->rela_dyn_section(layout), | |
2153 | (size == 64 ? | |
2154 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2155 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2156 | } | |
2157 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2158 | unsupported_reloc_global(object, r_type, gsym); | |
2159 | break; | |
2160 | ||
2161 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2162 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2163 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2164 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2165 | if (optimized_type == tls::TLSOPT_NONE) | |
2166 | { | |
2167 | // Create a GOT entry for the module index. | |
2168 | target->got_mod_index_entry(symtab, layout, object); | |
2169 | ||
2170 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2171 | generate_tls_call(symtab, layout, target); | |
2172 | } | |
2173 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2174 | unsupported_reloc_global(object, r_type, gsym); | |
2175 | break; | |
2176 | ||
2177 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2178 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2179 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2180 | break; | |
2181 | ||
2182 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2183 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2184 | layout->set_has_static_tls(); | |
2185 | if (parameters->options().shared()) | |
2186 | { | |
2187 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2188 | rela_dyn->add_global_relative(gsym, orig_r_type, | |
2189 | output_section, object, | |
2190 | data_shndx, reloc.get_r_offset(), | |
2191 | 0); | |
2192 | } | |
2193 | break; | |
2194 | ||
2195 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2196 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2197 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2198 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2199 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2200 | layout->set_has_static_tls(); |
2201 | if (optimized_type == tls::TLSOPT_NONE) | |
2202 | { | |
2203 | // Create a GOT entry for the tp-relative offset. | |
2204 | Output_data_got<size, big_endian>* got | |
2205 | = target->got_section(symtab, layout); | |
2206 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2207 | target->rela_dyn_section(layout), | |
2208 | (size == 64 ? | |
2209 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2210 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2211 | } | |
2212 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2213 | unsupported_reloc_global(object, r_type, gsym); | |
2214 | break; | |
2215 | } | |
2216 | } | |
2217 | break; | |
2218 | ||
2219 | // These are relocations which should only be seen by the | |
2220 | // dynamic linker, and should never be seen here. | |
2221 | case elfcpp::R_SPARC_COPY: | |
2222 | case elfcpp::R_SPARC_GLOB_DAT: | |
2223 | case elfcpp::R_SPARC_JMP_SLOT: | |
2224 | case elfcpp::R_SPARC_RELATIVE: | |
2225 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2226 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2227 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2228 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2229 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2230 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2231 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2232 | object->name().c_str(), r_type); | |
2233 | break; | |
2234 | ||
2235 | default: | |
2236 | unsupported_reloc_global(object, r_type, gsym); | |
2237 | break; | |
2238 | } | |
2239 | } | |
2240 | ||
6d03d481 ST |
2241 | // Process relocations for gc. |
2242 | ||
2243 | template<int size, bool big_endian> | |
2244 | void | |
2245 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
2246 | Symbol_table* symtab, |
2247 | Layout* layout, | |
2248 | Sized_relobj<size, big_endian>* object, | |
2249 | unsigned int data_shndx, | |
2250 | unsigned int, | |
2251 | const unsigned char* prelocs, | |
2252 | size_t reloc_count, | |
2253 | Output_section* output_section, | |
2254 | bool needs_special_offset_handling, | |
2255 | size_t local_symbol_count, | |
2256 | const unsigned char* plocal_symbols) | |
2257 | { | |
2258 | typedef Target_sparc<size, big_endian> Sparc; | |
2259 | typedef typename Target_sparc<size, big_endian>::Scan Scan; | |
2260 | ||
2261 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( | |
6d03d481 ST |
2262 | symtab, |
2263 | layout, | |
2264 | this, | |
2265 | object, | |
2266 | data_shndx, | |
2267 | prelocs, | |
2268 | reloc_count, | |
2269 | output_section, | |
2270 | needs_special_offset_handling, | |
2271 | local_symbol_count, | |
2272 | plocal_symbols); | |
2273 | } | |
2274 | ||
f5314dd5 DM |
2275 | // Scan relocations for a section. |
2276 | ||
2277 | template<int size, bool big_endian> | |
2278 | void | |
2279 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
2280 | Symbol_table* symtab, |
2281 | Layout* layout, | |
2282 | Sized_relobj<size, big_endian>* object, | |
2283 | unsigned int data_shndx, | |
2284 | unsigned int sh_type, | |
2285 | const unsigned char* prelocs, | |
2286 | size_t reloc_count, | |
2287 | Output_section* output_section, | |
2288 | bool needs_special_offset_handling, | |
2289 | size_t local_symbol_count, | |
2290 | const unsigned char* plocal_symbols) | |
2291 | { | |
2292 | typedef Target_sparc<size, big_endian> Sparc; | |
2293 | typedef typename Target_sparc<size, big_endian>::Scan Scan; | |
2294 | ||
2295 | if (sh_type == elfcpp::SHT_REL) | |
2296 | { | |
2297 | gold_error(_("%s: unsupported REL reloc section"), | |
2298 | object->name().c_str()); | |
2299 | return; | |
2300 | } | |
2301 | ||
2302 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( | |
f5314dd5 DM |
2303 | symtab, |
2304 | layout, | |
2305 | this, | |
2306 | object, | |
2307 | data_shndx, | |
2308 | prelocs, | |
2309 | reloc_count, | |
2310 | output_section, | |
2311 | needs_special_offset_handling, | |
2312 | local_symbol_count, | |
2313 | plocal_symbols); | |
2314 | } | |
2315 | ||
2316 | // Finalize the sections. | |
2317 | ||
2318 | template<int size, bool big_endian> | |
2319 | void | |
d5b40221 DK |
2320 | Target_sparc<size, big_endian>::do_finalize_sections( |
2321 | Layout* layout, | |
2322 | const Input_objects*) | |
f5314dd5 DM |
2323 | { |
2324 | // Fill in some more dynamic tags. | |
2325 | Output_data_dynamic* const odyn = layout->dynamic_data(); | |
2326 | if (odyn != NULL) | |
2327 | { | |
2328 | if (this->plt_ != NULL) | |
2329 | { | |
2330 | const Output_data* od = this->plt_->rel_plt(); | |
2331 | odyn->add_section_size(elfcpp::DT_PLTRELSZ, od); | |
2332 | odyn->add_section_address(elfcpp::DT_JMPREL, od); | |
2333 | odyn->add_constant(elfcpp::DT_PLTREL, elfcpp::DT_RELA); | |
2334 | ||
2335 | odyn->add_section_address(elfcpp::DT_PLTGOT, this->plt_); | |
2336 | } | |
2337 | ||
2338 | if (this->rela_dyn_ != NULL) | |
2339 | { | |
2340 | const Output_data* od = this->rela_dyn_; | |
2341 | odyn->add_section_address(elfcpp::DT_RELA, od); | |
2342 | odyn->add_section_size(elfcpp::DT_RELASZ, od); | |
2343 | odyn->add_constant(elfcpp::DT_RELAENT, | |
2344 | elfcpp::Elf_sizes<size>::rela_size); | |
2345 | } | |
2346 | ||
2347 | if (!parameters->options().shared()) | |
2348 | { | |
2349 | // The value of the DT_DEBUG tag is filled in by the dynamic | |
2350 | // linker at run time, and used by the debugger. | |
2351 | odyn->add_constant(elfcpp::DT_DEBUG, 0); | |
2352 | } | |
2353 | } | |
2354 | ||
2355 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
2356 | // relocs. | |
12c0daef ILT |
2357 | if (this->copy_relocs_.any_saved_relocs()) |
2358 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
f5314dd5 DM |
2359 | } |
2360 | ||
2361 | // Perform a relocation. | |
2362 | ||
2363 | template<int size, bool big_endian> | |
2364 | inline bool | |
2365 | Target_sparc<size, big_endian>::Relocate::relocate( | |
2366 | const Relocate_info<size, big_endian>* relinfo, | |
2367 | Target_sparc* target, | |
031cdbed | 2368 | Output_section*, |
f5314dd5 DM |
2369 | size_t relnum, |
2370 | const elfcpp::Rela<size, big_endian>& rela, | |
2371 | unsigned int r_type, | |
2372 | const Sized_symbol<size>* gsym, | |
2373 | const Symbol_value<size>* psymval, | |
2374 | unsigned char* view, | |
2375 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2376 | section_size_type view_size) | |
2377 | { | |
2378 | r_type &= 0xff; | |
2379 | ||
2380 | if (this->ignore_gd_add_) | |
2381 | { | |
2382 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
2383 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2384 | _("missing expected TLS relocation")); | |
2385 | else | |
2386 | { | |
2387 | this->ignore_gd_add_ = false; | |
2388 | return false; | |
2389 | } | |
2390 | } | |
2391 | ||
2392 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
2393 | ||
2394 | // Pick the value to use for symbols defined in shared objects. | |
2395 | Symbol_value<size> symval; | |
2396 | if (gsym != NULL | |
de4c45bd ILT |
2397 | && gsym->use_plt_offset(r_type == elfcpp::R_SPARC_DISP8 |
2398 | || r_type == elfcpp::R_SPARC_DISP16 | |
2399 | || r_type == elfcpp::R_SPARC_DISP32 | |
2400 | || r_type == elfcpp::R_SPARC_DISP64 | |
2401 | || r_type == elfcpp::R_SPARC_PC_HH22 | |
2402 | || r_type == elfcpp::R_SPARC_PC_HM10 | |
2403 | || r_type == elfcpp::R_SPARC_PC_LM22 | |
2404 | || r_type == elfcpp::R_SPARC_PC10 | |
2405 | || r_type == elfcpp::R_SPARC_PC22 | |
2406 | || r_type == elfcpp::R_SPARC_WDISP30 | |
2407 | || r_type == elfcpp::R_SPARC_WDISP22 | |
2408 | || r_type == elfcpp::R_SPARC_WDISP19 | |
2409 | || r_type == elfcpp::R_SPARC_WDISP16)) | |
f5314dd5 DM |
2410 | { |
2411 | elfcpp::Elf_Xword value; | |
2412 | ||
2413 | value = target->plt_section()->address() + gsym->plt_offset(); | |
2414 | ||
2415 | symval.set_output_value(value); | |
2416 | ||
2417 | psymval = &symval; | |
2418 | } | |
2419 | ||
2420 | const Sized_relobj<size, big_endian>* object = relinfo->object; | |
2421 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2422 | ||
2423 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
2424 | // pointer points to the beginning, not the end, of the table. | |
2425 | // So we just use the plain offset. | |
2426 | bool have_got_offset = false; | |
2427 | unsigned int got_offset = 0; | |
2428 | switch (r_type) | |
2429 | { | |
2430 | case elfcpp::R_SPARC_GOT10: | |
2431 | case elfcpp::R_SPARC_GOT13: | |
2432 | case elfcpp::R_SPARC_GOT22: | |
2433 | if (gsym != NULL) | |
2434 | { | |
2435 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
2436 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
2437 | } | |
2438 | else | |
2439 | { | |
2440 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
2441 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
2442 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
2443 | } | |
2444 | have_got_offset = true; | |
2445 | break; | |
2446 | ||
2447 | default: | |
2448 | break; | |
2449 | } | |
2450 | ||
2451 | switch (r_type) | |
2452 | { | |
2453 | case elfcpp::R_SPARC_NONE: | |
2454 | case elfcpp::R_SPARC_REGISTER: | |
2455 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2456 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2457 | break; | |
2458 | ||
2459 | case elfcpp::R_SPARC_8: | |
2460 | Relocate_functions<size, big_endian>::rela8(view, object, | |
2461 | psymval, addend); | |
2462 | break; | |
2463 | ||
2464 | case elfcpp::R_SPARC_16: | |
2465 | Relocate_functions<size, big_endian>::rela16(view, object, | |
2466 | psymval, addend); | |
2467 | break; | |
2468 | ||
2469 | case elfcpp::R_SPARC_32: | |
2470 | if (!parameters->options().output_is_position_independent()) | |
9efe6174 ILT |
2471 | Relocate_functions<size, big_endian>::rela32(view, object, |
2472 | psymval, addend); | |
f5314dd5 DM |
2473 | break; |
2474 | ||
2475 | case elfcpp::R_SPARC_DISP8: | |
2476 | Reloc::disp8(view, object, psymval, addend, address); | |
2477 | break; | |
2478 | ||
2479 | case elfcpp::R_SPARC_DISP16: | |
2480 | Reloc::disp16(view, object, psymval, addend, address); | |
2481 | break; | |
2482 | ||
2483 | case elfcpp::R_SPARC_DISP32: | |
2484 | Reloc::disp32(view, object, psymval, addend, address); | |
2485 | break; | |
2486 | ||
2487 | case elfcpp::R_SPARC_DISP64: | |
2488 | Reloc::disp64(view, object, psymval, addend, address); | |
2489 | break; | |
2490 | ||
2491 | case elfcpp::R_SPARC_WDISP30: | |
2492 | case elfcpp::R_SPARC_WPLT30: | |
2493 | Reloc::wdisp30(view, object, psymval, addend, address); | |
2494 | break; | |
2495 | ||
2496 | case elfcpp::R_SPARC_WDISP22: | |
2497 | Reloc::wdisp22(view, object, psymval, addend, address); | |
2498 | break; | |
2499 | ||
2500 | case elfcpp::R_SPARC_WDISP19: | |
2501 | Reloc::wdisp19(view, object, psymval, addend, address); | |
2502 | break; | |
2503 | ||
2504 | case elfcpp::R_SPARC_WDISP16: | |
2505 | Reloc::wdisp16(view, object, psymval, addend, address); | |
2506 | break; | |
2507 | ||
2508 | case elfcpp::R_SPARC_HI22: | |
2509 | Reloc::hi22(view, object, psymval, addend); | |
2510 | break; | |
2511 | ||
2512 | case elfcpp::R_SPARC_22: | |
2513 | Reloc::rela32_22(view, object, psymval, addend); | |
2514 | break; | |
2515 | ||
2516 | case elfcpp::R_SPARC_13: | |
2517 | Reloc::rela32_13(view, object, psymval, addend); | |
2518 | break; | |
2519 | ||
2520 | case elfcpp::R_SPARC_LO10: | |
2521 | Reloc::lo10(view, object, psymval, addend); | |
2522 | break; | |
2523 | ||
2524 | case elfcpp::R_SPARC_GOT10: | |
2525 | Reloc::lo10(view, got_offset, addend); | |
2526 | break; | |
2527 | ||
2528 | case elfcpp::R_SPARC_GOT13: | |
2529 | Reloc::rela32_13(view, got_offset, addend); | |
2530 | break; | |
2531 | ||
2532 | case elfcpp::R_SPARC_GOT22: | |
2533 | Reloc::hi22(view, got_offset, addend); | |
2534 | break; | |
2535 | ||
2536 | case elfcpp::R_SPARC_PC10: | |
2537 | Reloc::pc10(view, object, psymval, addend, address); | |
2538 | break; | |
2539 | ||
2540 | case elfcpp::R_SPARC_PC22: | |
2541 | Reloc::pc22(view, object, psymval, addend, address); | |
2542 | break; | |
2543 | ||
2544 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2545 | case elfcpp::R_SPARC_UA32: | |
2546 | Reloc::ua32(view, object, psymval, addend); | |
2547 | break; | |
2548 | ||
2549 | case elfcpp::R_SPARC_PLT64: | |
2550 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2551 | psymval, addend); | |
2552 | break; | |
2553 | ||
2554 | case elfcpp::R_SPARC_PLT32: | |
2555 | Relocate_functions<size, big_endian>::rela32(view, object, | |
2556 | psymval, addend); | |
2557 | break; | |
2558 | ||
2559 | case elfcpp::R_SPARC_HIPLT22: | |
2560 | Reloc::hi22(view, object, psymval, addend); | |
2561 | break; | |
2562 | ||
2563 | case elfcpp::R_SPARC_LOPLT10: | |
2564 | Reloc::lo10(view, object, psymval, addend); | |
2565 | break; | |
2566 | ||
2567 | case elfcpp::R_SPARC_PCPLT32: | |
2568 | Reloc::disp32(view, object, psymval, addend, address); | |
2569 | break; | |
2570 | ||
2571 | case elfcpp::R_SPARC_PCPLT22: | |
2572 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2573 | break; | |
2574 | ||
2575 | case elfcpp::R_SPARC_PCPLT10: | |
2576 | Reloc::lo10(view, object, psymval, addend, address); | |
2577 | break; | |
2578 | ||
2579 | case elfcpp::R_SPARC_64: | |
2580 | if (!parameters->options().output_is_position_independent()) | |
2581 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2582 | psymval, addend); | |
2583 | break; | |
2584 | ||
2585 | case elfcpp::R_SPARC_OLO10: | |
2586 | { | |
2587 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
2588 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
2589 | Reloc::olo10(view, object, psymval, addend, addend2); | |
2590 | } | |
2591 | break; | |
2592 | ||
2593 | case elfcpp::R_SPARC_HH22: | |
2594 | Reloc::hh22(view, object, psymval, addend); | |
2595 | break; | |
2596 | ||
2597 | case elfcpp::R_SPARC_PC_HH22: | |
2598 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
2599 | break; | |
2600 | ||
2601 | case elfcpp::R_SPARC_HM10: | |
2602 | Reloc::hm10(view, object, psymval, addend); | |
2603 | break; | |
2604 | ||
2605 | case elfcpp::R_SPARC_PC_HM10: | |
2606 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
2607 | break; | |
2608 | ||
2609 | case elfcpp::R_SPARC_LM22: | |
2610 | Reloc::hi22(view, object, psymval, addend); | |
2611 | break; | |
2612 | ||
2613 | case elfcpp::R_SPARC_PC_LM22: | |
2614 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2615 | break; | |
2616 | ||
2617 | case elfcpp::R_SPARC_11: | |
2618 | Reloc::rela32_11(view, object, psymval, addend); | |
2619 | break; | |
2620 | ||
2621 | case elfcpp::R_SPARC_10: | |
2622 | Reloc::rela32_10(view, object, psymval, addend); | |
2623 | break; | |
2624 | ||
2625 | case elfcpp::R_SPARC_7: | |
2626 | Reloc::rela32_7(view, object, psymval, addend); | |
2627 | break; | |
2628 | ||
2629 | case elfcpp::R_SPARC_6: | |
2630 | Reloc::rela32_6(view, object, psymval, addend); | |
2631 | break; | |
2632 | ||
2633 | case elfcpp::R_SPARC_5: | |
2634 | Reloc::rela32_5(view, object, psymval, addend); | |
2635 | break; | |
2636 | ||
2637 | case elfcpp::R_SPARC_HIX22: | |
2638 | Reloc::hix22(view, object, psymval, addend); | |
2639 | break; | |
2640 | ||
2641 | case elfcpp::R_SPARC_LOX10: | |
2642 | Reloc::lox10(view, object, psymval, addend); | |
2643 | break; | |
2644 | ||
2645 | case elfcpp::R_SPARC_H44: | |
2646 | Reloc::h44(view, object, psymval, addend); | |
2647 | break; | |
2648 | ||
2649 | case elfcpp::R_SPARC_M44: | |
2650 | Reloc::m44(view, object, psymval, addend); | |
2651 | break; | |
2652 | ||
2653 | case elfcpp::R_SPARC_L44: | |
2654 | Reloc::l44(view, object, psymval, addend); | |
2655 | break; | |
2656 | ||
2657 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2658 | case elfcpp::R_SPARC_UA64: | |
2659 | Reloc::ua64(view, object, psymval, addend); | |
2660 | break; | |
2661 | ||
2662 | case elfcpp::R_SPARC_UA16: | |
2663 | Reloc::ua16(view, object, psymval, addend); | |
2664 | break; | |
2665 | ||
2666 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2667 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2668 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2669 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2670 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2671 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2672 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2673 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2674 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
2675 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2676 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2677 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2678 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2679 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2680 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2681 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2682 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
2683 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2684 | this->relocate_tls(relinfo, target, relnum, rela, | |
2685 | r_type, gsym, psymval, view, | |
2686 | address, view_size); | |
2687 | break; | |
2688 | ||
2689 | case elfcpp::R_SPARC_COPY: | |
2690 | case elfcpp::R_SPARC_GLOB_DAT: | |
2691 | case elfcpp::R_SPARC_JMP_SLOT: | |
2692 | case elfcpp::R_SPARC_RELATIVE: | |
2693 | // These are outstanding tls relocs, which are unexpected when | |
2694 | // linking. | |
2695 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2696 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2697 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2698 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2699 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2700 | _("unexpected reloc %u in object file"), | |
2701 | r_type); | |
2702 | break; | |
2703 | ||
2704 | default: | |
2705 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2706 | _("unsupported reloc %u"), | |
2707 | r_type); | |
2708 | break; | |
2709 | } | |
2710 | ||
2711 | return true; | |
2712 | } | |
2713 | ||
2714 | // Perform a TLS relocation. | |
2715 | ||
2716 | template<int size, bool big_endian> | |
2717 | inline void | |
2718 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
2719 | const Relocate_info<size, big_endian>* relinfo, | |
2720 | Target_sparc<size, big_endian>* target, | |
2721 | size_t relnum, | |
2722 | const elfcpp::Rela<size, big_endian>& rela, | |
2723 | unsigned int r_type, | |
2724 | const Sized_symbol<size>* gsym, | |
2725 | const Symbol_value<size>* psymval, | |
2726 | unsigned char* view, | |
2727 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2728 | section_size_type) | |
2729 | { | |
2730 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
2731 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
2732 | const Sized_relobj<size, big_endian>* object = relinfo->object; | |
2733 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
2734 | ||
2735 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2736 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); | |
2737 | ||
2738 | const bool is_final = | |
2739 | (gsym == NULL | |
2740 | ? !parameters->options().output_is_position_independent() | |
2741 | : gsym->final_value_is_known()); | |
2742 | const tls::Tls_optimization optimized_type | |
2743 | = optimize_tls_reloc(is_final, r_type); | |
2744 | ||
2745 | switch (r_type) | |
2746 | { | |
2747 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2748 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2749 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2750 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2751 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2752 | { | |
2753 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2754 | Insntype val; | |
2755 | ||
2756 | value -= tls_segment->memsz(); | |
2757 | ||
2758 | switch (r_type) | |
2759 | { | |
2760 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2761 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2762 | Reloc::hix22(view, value, addend); | |
2763 | break; | |
2764 | ||
2765 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2766 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2767 | Reloc::lox10(view, value, addend); | |
2768 | break; | |
2769 | ||
2770 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2771 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
2772 | val = elfcpp::Swap<32, true>::readval(wv); | |
2773 | val = (val & ~0x7c000) | 0x1c000; | |
2774 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2775 | break; | |
2776 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2777 | // call __tls_get_addr --> nop | |
2778 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
2779 | break; | |
2780 | } | |
2781 | break; | |
2782 | } | |
2783 | else | |
2784 | { | |
2785 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
2786 | ? GOT_TYPE_TLS_OFFSET | |
2787 | : GOT_TYPE_TLS_PAIR); | |
2788 | if (gsym != NULL) | |
2789 | { | |
2790 | gold_assert(gsym->has_got_offset(got_type)); | |
2791 | value = gsym->got_offset(got_type); | |
2792 | } | |
2793 | else | |
2794 | { | |
2795 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
2796 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
2797 | value = object->local_got_offset(r_sym, got_type); | |
2798 | } | |
2799 | if (optimized_type == tls::TLSOPT_TO_IE) | |
2800 | { | |
2801 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2802 | Insntype val; | |
2803 | ||
2804 | switch (r_type) | |
2805 | { | |
2806 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2807 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2808 | Reloc::hi22(view, value, addend); | |
2809 | break; | |
2810 | ||
2811 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2812 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2813 | Reloc::lo10(view, value, addend); | |
2814 | break; | |
2815 | ||
2816 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2817 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
2818 | val = elfcpp::Swap<32, true>::readval(wv); | |
2819 | ||
2820 | if (size == 64) | |
2821 | val |= 0xc0580000; | |
2822 | else | |
2823 | val |= 0xc0000000; | |
2824 | ||
2825 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2826 | break; | |
2827 | ||
2828 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2829 | // The compiler can put the TLS_GD_ADD instruction | |
2830 | // into the delay slot of the call. If so, we need | |
2831 | // to transpose the two instructions so that the | |
2832 | // the new sequence works properly. | |
2833 | // | |
2834 | // The test we use is if the instruction in the | |
2835 | // delay slot is an add with destination register | |
2836 | // equal to %o0 | |
2837 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
2838 | if ((val & 0x81f80000) == 0x80000000 | |
2839 | && ((val >> 25) & 0x1f) == 0x8) | |
2840 | { | |
2841 | if (size == 64) | |
2842 | val |= 0xc0580000; | |
2843 | else | |
2844 | val |= 0xc0000000; | |
2845 | ||
2846 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2847 | ||
2848 | wv += 1; | |
2849 | this->ignore_gd_add_ = true; | |
2850 | } | |
2851 | ||
2852 | // call __tls_get_addr --> add %g7, %o0, %o0 | |
2853 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
2854 | break; | |
2855 | } | |
2856 | break; | |
2857 | } | |
2858 | else if (optimized_type == tls::TLSOPT_NONE) | |
2859 | { | |
2860 | switch (r_type) | |
2861 | { | |
2862 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2863 | Reloc::hi22(view, value, addend); | |
2864 | break; | |
2865 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2866 | Reloc::lo10(view, value, addend); | |
2867 | break; | |
2868 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2869 | break; | |
2870 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2871 | { | |
2872 | Symbol_value<size> symval; | |
2873 | elfcpp::Elf_Xword value; | |
2874 | Symbol* tsym; | |
2875 | ||
2876 | tsym = target->tls_get_addr_sym_; | |
2877 | gold_assert(tsym); | |
2878 | value = (target->plt_section()->address() + | |
2879 | tsym->plt_offset()); | |
2880 | symval.set_output_value(value); | |
2881 | Reloc::wdisp30(view, object, &symval, addend, address); | |
2882 | } | |
2883 | break; | |
2884 | } | |
2885 | break; | |
2886 | } | |
2887 | } | |
2888 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2889 | _("unsupported reloc %u"), | |
2890 | r_type); | |
2891 | break; | |
2892 | ||
2893 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2894 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2895 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2896 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2897 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2898 | { | |
2899 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2900 | ||
2901 | switch (r_type) | |
2902 | { | |
2903 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2904 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2905 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2906 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
2907 | break; | |
2908 | ||
2909 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2910 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
2911 | break; | |
2912 | } | |
2913 | break; | |
2914 | } | |
2915 | else if (optimized_type == tls::TLSOPT_NONE) | |
2916 | { | |
2917 | // Relocate the field with the offset of the GOT entry for | |
2918 | // the module index. | |
2919 | unsigned int got_offset; | |
2920 | ||
2921 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
2922 | switch (r_type) | |
2923 | { | |
2924 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2925 | Reloc::hi22(view, got_offset, addend); | |
2926 | break; | |
2927 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2928 | Reloc::lo10(view, got_offset, addend); | |
2929 | break; | |
2930 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2931 | break; | |
2932 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2933 | { | |
2934 | Symbol_value<size> symval; | |
2935 | elfcpp::Elf_Xword value; | |
2936 | Symbol* tsym; | |
2937 | ||
2938 | tsym = target->tls_get_addr_sym_; | |
2939 | gold_assert(tsym); | |
2940 | value = (target->plt_section()->address() + | |
2941 | tsym->plt_offset()); | |
2942 | symval.set_output_value(value); | |
2943 | Reloc::wdisp30(view, object, &symval, addend, address); | |
2944 | } | |
2945 | break; | |
2946 | } | |
2947 | break; | |
2948 | } | |
2949 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2950 | _("unsupported reloc %u"), | |
2951 | r_type); | |
2952 | break; | |
2953 | ||
2954 | // These relocs can appear in debugging sections, in which case | |
2955 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
2956 | // field tells us this. | |
2957 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
2958 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2959 | { | |
2960 | value -= tls_segment->memsz(); | |
2961 | Reloc::hix22(view, value, addend); | |
2962 | } | |
2963 | else | |
2964 | Reloc::ldo_hix22(view, value, addend); | |
2965 | break; | |
2966 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2967 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2968 | { | |
2969 | value -= tls_segment->memsz(); | |
2970 | Reloc::lox10(view, value, addend); | |
2971 | } | |
2972 | else | |
2973 | Reloc::ldo_lox10(view, value, addend); | |
2974 | break; | |
2975 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2976 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2977 | { | |
2978 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2979 | Insntype val; | |
2980 | ||
2981 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
2982 | val = elfcpp::Swap<32, true>::readval(wv); | |
2983 | val = (val & ~0x7c000) | 0x1c000; | |
2984 | elfcpp::Swap<32, true>::writeval(wv, val); | |
2985 | } | |
2986 | break; | |
2987 | ||
2988 | // When optimizing IE --> LE, the only relocation that is handled | |
2989 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
2990 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
2991 | // rs2 and rd are the same. | |
2992 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2993 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
2994 | if (optimized_type == tls::TLSOPT_TO_LE) | |
2995 | { | |
2996 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
2997 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
2998 | Insntype rs2 = val & 0x1f; | |
2999 | Insntype rd = (val >> 25) & 0x1f; | |
3000 | ||
3001 | if (rs2 == rd) | |
3002 | val = sparc_nop; | |
3003 | else | |
3004 | val = sparc_mov | (val & 0x3e00001f); | |
3005 | ||
3006 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3007 | } | |
3008 | break; | |
3009 | ||
3010 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3011 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3012 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3013 | { | |
3014 | value -= tls_segment->memsz(); | |
3015 | switch (r_type) | |
3016 | { | |
3017 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3018 | // IE_HI22 --> LE_HIX22 | |
3019 | Reloc::hix22(view, value, addend); | |
3020 | break; | |
3021 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3022 | // IE_LO10 --> LE_LOX10 | |
3023 | Reloc::lox10(view, value, addend); | |
3024 | break; | |
3025 | } | |
3026 | break; | |
3027 | } | |
3028 | else if (optimized_type == tls::TLSOPT_NONE) | |
3029 | { | |
3030 | // Relocate the field with the offset of the GOT entry for | |
3031 | // the tp-relative offset of the symbol. | |
3032 | if (gsym != NULL) | |
3033 | { | |
3034 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
3035 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); | |
3036 | } | |
3037 | else | |
3038 | { | |
3039 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3040 | gold_assert(object->local_has_got_offset(r_sym, | |
3041 | GOT_TYPE_TLS_OFFSET)); | |
3042 | value = object->local_got_offset(r_sym, | |
3043 | GOT_TYPE_TLS_OFFSET); | |
3044 | } | |
3045 | switch (r_type) | |
3046 | { | |
3047 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3048 | Reloc::hi22(view, value, addend); | |
3049 | break; | |
3050 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3051 | Reloc::lo10(view, value, addend); | |
3052 | break; | |
3053 | } | |
3054 | break; | |
3055 | } | |
3056 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3057 | _("unsupported reloc %u"), | |
3058 | r_type); | |
3059 | break; | |
3060 | ||
9efe6174 ILT |
3061 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3062 | // This seems to be mainly so that we can find the addition | |
3063 | // instruction if there is one. There doesn't seem to be any | |
3064 | // actual relocation to apply. | |
3065 | break; | |
3066 | ||
f5314dd5 DM |
3067 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3068 | // If we're creating a shared library, a dynamic relocation will | |
3069 | // have been created for this location, so do not apply it now. | |
3070 | if (!parameters->options().shared()) | |
3071 | { | |
3072 | value -= tls_segment->memsz(); | |
3073 | Reloc::hix22(view, value, addend); | |
3074 | } | |
3075 | break; | |
3076 | ||
3077 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3078 | // If we're creating a shared library, a dynamic relocation will | |
3079 | // have been created for this location, so do not apply it now. | |
3080 | if (!parameters->options().shared()) | |
3081 | { | |
3082 | value -= tls_segment->memsz(); | |
3083 | Reloc::lox10(view, value, addend); | |
3084 | } | |
3085 | break; | |
3086 | } | |
3087 | } | |
3088 | ||
3089 | // Relocate section data. | |
3090 | ||
3091 | template<int size, bool big_endian> | |
3092 | void | |
3093 | Target_sparc<size, big_endian>::relocate_section( | |
3094 | const Relocate_info<size, big_endian>* relinfo, | |
3095 | unsigned int sh_type, | |
3096 | const unsigned char* prelocs, | |
3097 | size_t reloc_count, | |
3098 | Output_section* output_section, | |
3099 | bool needs_special_offset_handling, | |
3100 | unsigned char* view, | |
3101 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
3102 | section_size_type view_size, |
3103 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
3104 | { |
3105 | typedef Target_sparc<size, big_endian> Sparc; | |
3106 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
3107 | ||
3108 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3109 | ||
3110 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
3111 | Sparc_relocate>( | |
3112 | relinfo, | |
3113 | this, | |
3114 | prelocs, | |
3115 | reloc_count, | |
3116 | output_section, | |
3117 | needs_special_offset_handling, | |
3118 | view, | |
3119 | address, | |
364c7fa5 ILT |
3120 | view_size, |
3121 | reloc_symbol_changes); | |
f5314dd5 DM |
3122 | } |
3123 | ||
3124 | // Return the size of a relocation while scanning during a relocatable | |
3125 | // link. | |
3126 | ||
3127 | template<int size, bool big_endian> | |
3128 | unsigned int | |
3129 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
3130 | unsigned int, | |
3131 | Relobj*) | |
3132 | { | |
3133 | // We are always SHT_RELA, so we should never get here. | |
3134 | gold_unreachable(); | |
3135 | return 0; | |
3136 | } | |
3137 | ||
3138 | // Scan the relocs during a relocatable link. | |
3139 | ||
3140 | template<int size, bool big_endian> | |
3141 | void | |
3142 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
3143 | Symbol_table* symtab, |
3144 | Layout* layout, | |
3145 | Sized_relobj<size, big_endian>* object, | |
3146 | unsigned int data_shndx, | |
3147 | unsigned int sh_type, | |
3148 | const unsigned char* prelocs, | |
3149 | size_t reloc_count, | |
3150 | Output_section* output_section, | |
3151 | bool needs_special_offset_handling, | |
3152 | size_t local_symbol_count, | |
3153 | const unsigned char* plocal_symbols, | |
3154 | Relocatable_relocs* rr) | |
3155 | { | |
3156 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3157 | ||
3158 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
3159 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
3160 | ||
3161 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
3162 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
3163 | symtab, |
3164 | layout, | |
3165 | object, | |
3166 | data_shndx, | |
3167 | prelocs, | |
3168 | reloc_count, | |
3169 | output_section, | |
3170 | needs_special_offset_handling, | |
3171 | local_symbol_count, | |
3172 | plocal_symbols, | |
3173 | rr); | |
3174 | } | |
3175 | ||
3176 | // Relocate a section during a relocatable link. | |
3177 | ||
3178 | template<int size, bool big_endian> | |
3179 | void | |
3180 | Target_sparc<size, big_endian>::relocate_for_relocatable( | |
3181 | const Relocate_info<size, big_endian>* relinfo, | |
3182 | unsigned int sh_type, | |
3183 | const unsigned char* prelocs, | |
3184 | size_t reloc_count, | |
3185 | Output_section* output_section, | |
3186 | off_t offset_in_output_section, | |
3187 | const Relocatable_relocs* rr, | |
3188 | unsigned char* view, | |
3189 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
3190 | section_size_type view_size, | |
3191 | unsigned char* reloc_view, | |
3192 | section_size_type reloc_view_size) | |
3193 | { | |
3194 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3195 | ||
3196 | gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>( | |
3197 | relinfo, | |
3198 | prelocs, | |
3199 | reloc_count, | |
3200 | output_section, | |
3201 | offset_in_output_section, | |
3202 | rr, | |
3203 | view, | |
3204 | view_address, | |
3205 | view_size, | |
3206 | reloc_view, | |
3207 | reloc_view_size); | |
3208 | } | |
3209 | ||
3210 | // Return the value to use for a dynamic which requires special | |
3211 | // treatment. This is how we support equality comparisons of function | |
3212 | // pointers across shared library boundaries, as described in the | |
3213 | // processor specific ABI supplement. | |
3214 | ||
3215 | template<int size, bool big_endian> | |
3216 | uint64_t | |
3217 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
3218 | { | |
3219 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
3220 | return this->plt_section()->address() + gsym->plt_offset(); | |
3221 | } | |
3222 | ||
3223 | // The selector for sparc object files. | |
3224 | ||
3225 | template<int size, bool big_endian> | |
3226 | class Target_selector_sparc : public Target_selector | |
3227 | { | |
3228 | public: | |
3229 | Target_selector_sparc() | |
3230 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
3231 | (size == 64 ? "elf64-sparc" : "elf32-sparc")) | |
3232 | { } | |
3233 | ||
f5314dd5 DM |
3234 | Target* do_recognize(int machine, int, int) |
3235 | { | |
3236 | switch (size) | |
3237 | { | |
3238 | case 64: | |
3239 | if (machine != elfcpp::EM_SPARCV9) | |
3240 | return NULL; | |
3241 | break; | |
3242 | ||
3243 | case 32: | |
3244 | if (machine != elfcpp::EM_SPARC | |
3245 | && machine != elfcpp::EM_SPARC32PLUS) | |
3246 | return NULL; | |
3247 | break; | |
3248 | ||
3249 | default: | |
3250 | return NULL; | |
3251 | } | |
3252 | ||
7f055c20 | 3253 | return this->instantiate_target(); |
f5314dd5 DM |
3254 | } |
3255 | ||
3256 | Target* do_instantiate_target() | |
7f055c20 | 3257 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
3258 | }; |
3259 | ||
3260 | Target_selector_sparc<32, true> target_selector_sparc32; | |
3261 | Target_selector_sparc<64, true> target_selector_sparc64; | |
3262 | ||
3263 | } // End anonymous namespace. |