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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
b3ce541e | 3 | // Copyright 2008, 2009, 2010, 2011 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 | 71 | Layout* layout, |
6fa2a40b | 72 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
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 | 85 | Layout* layout, |
6fa2a40b | 86 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
87 | unsigned int data_shndx, |
88 | unsigned int sh_type, | |
89 | const unsigned char* prelocs, | |
90 | size_t reloc_count, | |
91 | Output_section* output_section, | |
92 | bool needs_special_offset_handling, | |
93 | size_t local_symbol_count, | |
94 | const unsigned char* plocal_symbols); | |
95 | // Finalize the sections. | |
96 | void | |
f59f41f3 | 97 | do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); |
f5314dd5 DM |
98 | |
99 | // Return the value to use for a dynamic which requires special | |
100 | // treatment. | |
101 | uint64_t | |
102 | do_dynsym_value(const Symbol*) const; | |
103 | ||
104 | // Relocate a section. | |
105 | void | |
106 | relocate_section(const Relocate_info<size, big_endian>*, | |
107 | unsigned int sh_type, | |
108 | const unsigned char* prelocs, | |
109 | size_t reloc_count, | |
110 | Output_section* output_section, | |
111 | bool needs_special_offset_handling, | |
112 | unsigned char* view, | |
113 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
364c7fa5 ILT |
114 | section_size_type view_size, |
115 | const Reloc_symbol_changes*); | |
f5314dd5 DM |
116 | |
117 | // Scan the relocs during a relocatable link. | |
118 | void | |
ad0f2072 | 119 | scan_relocatable_relocs(Symbol_table* symtab, |
f5314dd5 | 120 | Layout* layout, |
6fa2a40b | 121 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
122 | unsigned int data_shndx, |
123 | unsigned int sh_type, | |
124 | const unsigned char* prelocs, | |
125 | size_t reloc_count, | |
126 | Output_section* output_section, | |
127 | bool needs_special_offset_handling, | |
128 | size_t local_symbol_count, | |
129 | const unsigned char* plocal_symbols, | |
130 | Relocatable_relocs*); | |
131 | ||
132 | // Relocate a section during a relocatable link. | |
133 | void | |
134 | relocate_for_relocatable(const Relocate_info<size, big_endian>*, | |
135 | unsigned int sh_type, | |
136 | const unsigned char* prelocs, | |
137 | size_t reloc_count, | |
138 | Output_section* output_section, | |
139 | off_t offset_in_output_section, | |
140 | const Relocatable_relocs*, | |
141 | unsigned char* view, | |
142 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
143 | section_size_type view_size, | |
144 | unsigned char* reloc_view, | |
145 | section_size_type reloc_view_size); | |
146 | // Return whether SYM is defined by the ABI. | |
147 | bool | |
9c2d0ef9 | 148 | do_is_defined_by_abi(const Symbol* sym) const |
f5314dd5 DM |
149 | { |
150 | // XXX Really need to support this better... | |
151 | if (sym->type() == elfcpp::STT_SPARC_REGISTER) | |
152 | return 1; | |
153 | ||
154 | return strcmp(sym->name(), "___tls_get_addr") == 0; | |
155 | } | |
156 | ||
9efe6174 ILT |
157 | // Return whether there is a GOT section. |
158 | bool | |
159 | has_got_section() const | |
160 | { return this->got_ != NULL; } | |
161 | ||
f5314dd5 DM |
162 | // Return the size of the GOT section. |
163 | section_size_type | |
0e70b911 | 164 | got_size() const |
f5314dd5 DM |
165 | { |
166 | gold_assert(this->got_ != NULL); | |
167 | return this->got_->data_size(); | |
168 | } | |
169 | ||
0e70b911 CC |
170 | // Return the number of entries in the GOT. |
171 | unsigned int | |
172 | got_entry_count() const | |
173 | { | |
174 | if (this->got_ == NULL) | |
175 | return 0; | |
176 | return this->got_size() / (size / 8); | |
177 | } | |
178 | ||
179 | // Return the number of entries in the PLT. | |
180 | unsigned int | |
181 | plt_entry_count() const; | |
182 | ||
183 | // Return the offset of the first non-reserved PLT entry. | |
184 | unsigned int | |
185 | first_plt_entry_offset() const; | |
186 | ||
187 | // Return the size of each PLT entry. | |
188 | unsigned int | |
189 | plt_entry_size() const; | |
190 | ||
f5314dd5 DM |
191 | private: |
192 | ||
193 | // The class which scans relocations. | |
32b769e1 | 194 | class Scan |
f5314dd5 | 195 | { |
32b769e1 DM |
196 | public: |
197 | Scan() | |
198 | : issued_non_pic_error_(false) | |
199 | { } | |
200 | ||
95a2c8d6 RS |
201 | static inline int |
202 | get_reference_flags(unsigned int r_type); | |
203 | ||
f5314dd5 | 204 | inline void |
ad0f2072 | 205 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 206 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
207 | unsigned int data_shndx, |
208 | Output_section* output_section, | |
209 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
210 | const elfcpp::Sym<size, big_endian>& lsym); | |
211 | ||
212 | inline void | |
ad0f2072 | 213 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 214 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
215 | unsigned int data_shndx, |
216 | Output_section* output_section, | |
217 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
218 | Symbol* gsym); | |
219 | ||
21bb3914 ST |
220 | inline bool |
221 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
222 | Target_sparc* , | |
6fa2a40b | 223 | Sized_relobj_file<size, big_endian>* , |
21bb3914 ST |
224 | unsigned int , |
225 | Output_section* , | |
226 | const elfcpp::Rela<size, big_endian>& , | |
227 | unsigned int , | |
228 | const elfcpp::Sym<size, big_endian>&) | |
229 | { return false; } | |
230 | ||
231 | inline bool | |
232 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
233 | Target_sparc* , | |
6fa2a40b | 234 | Sized_relobj_file<size, big_endian>* , |
21bb3914 ST |
235 | unsigned int , |
236 | Output_section* , | |
237 | const elfcpp::Rela<size, | |
238 | big_endian>& , | |
239 | unsigned int , Symbol*) | |
240 | { return false; } | |
241 | ||
242 | ||
32b769e1 | 243 | private: |
f5314dd5 | 244 | static void |
6fa2a40b | 245 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
246 | unsigned int r_type); |
247 | ||
248 | static void | |
6fa2a40b | 249 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
250 | unsigned int r_type, Symbol*); |
251 | ||
252 | static void | |
253 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
254 | Target_sparc* target); | |
32b769e1 DM |
255 | |
256 | void | |
257 | check_non_pic(Relobj*, unsigned int r_type); | |
258 | ||
259 | // Whether we have issued an error about a non-PIC compilation. | |
260 | bool issued_non_pic_error_; | |
f5314dd5 DM |
261 | }; |
262 | ||
263 | // The class which implements relocation. | |
264 | class Relocate | |
265 | { | |
266 | public: | |
267 | Relocate() | |
abd242a9 | 268 | : ignore_gd_add_(false), reloc_adjust_addr_(NULL) |
f5314dd5 DM |
269 | { } |
270 | ||
271 | ~Relocate() | |
272 | { | |
273 | if (this->ignore_gd_add_) | |
274 | { | |
275 | // FIXME: This needs to specify the location somehow. | |
276 | gold_error(_("missing expected TLS relocation")); | |
277 | } | |
278 | } | |
279 | ||
280 | // Do a relocation. Return false if the caller should not issue | |
281 | // any warnings about this relocation. | |
282 | inline bool | |
283 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
284 | Output_section*, size_t relnum, |
285 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
286 | unsigned int r_type, const Sized_symbol<size>*, |
287 | const Symbol_value<size>*, | |
288 | unsigned char*, | |
289 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
290 | section_size_type); | |
291 | ||
292 | private: | |
293 | // Do a TLS relocation. | |
294 | inline void | |
295 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
296 | size_t relnum, const elfcpp::Rela<size, big_endian>&, | |
297 | unsigned int r_type, const Sized_symbol<size>*, | |
298 | const Symbol_value<size>*, | |
299 | unsigned char*, | |
300 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
301 | section_size_type); | |
302 | ||
303 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD | |
304 | bool ignore_gd_add_; | |
abd242a9 DM |
305 | |
306 | // If we hit a reloc at this view address, adjust it back by 4 bytes. | |
307 | unsigned char *reloc_adjust_addr_; | |
f5314dd5 DM |
308 | }; |
309 | ||
310 | // A class which returns the size required for a relocation type, | |
311 | // used while scanning relocs during a relocatable link. | |
312 | class Relocatable_size_for_reloc | |
313 | { | |
314 | public: | |
315 | unsigned int | |
316 | get_size_for_reloc(unsigned int, Relobj*); | |
317 | }; | |
318 | ||
319 | // Get the GOT section, creating it if necessary. | |
320 | Output_data_got<size, big_endian>* | |
321 | got_section(Symbol_table*, Layout*); | |
322 | ||
323 | // Create a PLT entry for a global symbol. | |
324 | void | |
325 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
326 | ||
327 | // Create a GOT entry for the TLS module index. | |
328 | unsigned int | |
329 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
6fa2a40b | 330 | Sized_relobj_file<size, big_endian>* object); |
f5314dd5 DM |
331 | |
332 | // Return the gsym for "__tls_get_addr". Cache if not already | |
333 | // cached. | |
334 | Symbol* | |
335 | tls_get_addr_sym(Symbol_table* symtab) | |
336 | { | |
337 | if (!this->tls_get_addr_sym_) | |
338 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
339 | gold_assert(this->tls_get_addr_sym_); | |
340 | return this->tls_get_addr_sym_; | |
341 | } | |
342 | ||
343 | // Get the PLT section. | |
344 | const Output_data_plt_sparc<size, big_endian>* | |
345 | plt_section() const | |
346 | { | |
347 | gold_assert(this->plt_ != NULL); | |
348 | return this->plt_; | |
349 | } | |
350 | ||
351 | // Get the dynamic reloc section, creating it if necessary. | |
352 | Reloc_section* | |
353 | rela_dyn_section(Layout*); | |
354 | ||
f5314dd5 DM |
355 | // Copy a relocation against a global symbol. |
356 | void | |
ef9beddf | 357 | copy_reloc(Symbol_table* symtab, Layout* layout, |
6fa2a40b | 358 | Sized_relobj_file<size, big_endian>* object, |
12c0daef ILT |
359 | unsigned int shndx, Output_section* output_section, |
360 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
361 | { | |
362 | this->copy_relocs_.copy_reloc(symtab, layout, | |
363 | symtab->get_sized_symbol<size>(sym), | |
364 | object, shndx, output_section, | |
365 | reloc, this->rela_dyn_section(layout)); | |
366 | } | |
f5314dd5 DM |
367 | |
368 | // Information about this specific target which we pass to the | |
369 | // general Target structure. | |
370 | static Target::Target_info sparc_info; | |
371 | ||
372 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
373 | // These values are exposed to the ABI in an incremental link. |
374 | // Do not renumber existing values without changing the version | |
375 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
376 | enum Got_type |
377 | { | |
378 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
379 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
380 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
381 | }; | |
382 | ||
383 | // The GOT section. | |
384 | Output_data_got<size, big_endian>* got_; | |
385 | // The PLT section. | |
386 | Output_data_plt_sparc<size, big_endian>* plt_; | |
387 | // The dynamic reloc section. | |
388 | Reloc_section* rela_dyn_; | |
389 | // Relocs saved to avoid a COPY reloc. | |
12c0daef | 390 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
391 | // Space for variables copied with a COPY reloc. |
392 | Output_data_space* dynbss_; | |
393 | // Offset of the GOT entry for the TLS module index; | |
394 | unsigned int got_mod_index_offset_; | |
395 | // Cached pointer to __tls_get_addr symbol | |
396 | Symbol* tls_get_addr_sym_; | |
397 | }; | |
398 | ||
399 | template<> | |
400 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
401 | { | |
402 | 32, // size | |
403 | true, // is_big_endian | |
404 | elfcpp::EM_SPARC, // machine_code | |
405 | false, // has_make_symbol | |
406 | false, // has_resolve | |
407 | false, // has_code_fill | |
408 | true, // is_default_stack_executable | |
b3ce541e | 409 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
410 | '\0', // wrap_char |
411 | "/usr/lib/ld.so.1", // dynamic_linker | |
412 | 0x00010000, // default_text_segment_address | |
413 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
414 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
415 | elfcpp::SHN_UNDEF, // small_common_shndx | |
416 | elfcpp::SHN_UNDEF, // large_common_shndx | |
417 | 0, // small_common_section_flags | |
05a352e6 DK |
418 | 0, // large_common_section_flags |
419 | NULL, // attributes_section | |
420 | NULL // attributes_vendor | |
f5314dd5 DM |
421 | }; |
422 | ||
423 | template<> | |
424 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
425 | { | |
426 | 64, // size | |
427 | true, // is_big_endian | |
428 | elfcpp::EM_SPARCV9, // machine_code | |
429 | false, // has_make_symbol | |
430 | false, // has_resolve | |
431 | false, // has_code_fill | |
432 | true, // is_default_stack_executable | |
b3ce541e | 433 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
434 | '\0', // wrap_char |
435 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
436 | 0x100000, // default_text_segment_address | |
437 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
438 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
439 | elfcpp::SHN_UNDEF, // small_common_shndx | |
440 | elfcpp::SHN_UNDEF, // large_common_shndx | |
441 | 0, // small_common_section_flags | |
05a352e6 DK |
442 | 0, // large_common_section_flags |
443 | NULL, // attributes_section | |
444 | NULL // attributes_vendor | |
f5314dd5 DM |
445 | }; |
446 | ||
447 | // We have to take care here, even when operating in little-endian | |
448 | // mode, sparc instructions are still big endian. | |
449 | template<int size, bool big_endian> | |
450 | class Sparc_relocate_functions | |
451 | { | |
452 | private: | |
453 | // Do a simple relocation with the addend in the relocation. | |
454 | template<int valsize> | |
455 | static inline void | |
456 | rela(unsigned char* view, | |
457 | unsigned int right_shift, | |
458 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 459 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
460 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
461 | { | |
462 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
463 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
464 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 465 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
466 | |
467 | val &= ~dst_mask; | |
468 | reloc &= dst_mask; | |
469 | ||
470 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
471 | } | |
472 | ||
473 | // Do a simple relocation using a symbol value with the addend in | |
474 | // the relocation. | |
475 | template<int valsize> | |
476 | static inline void | |
477 | rela(unsigned char* view, | |
478 | unsigned int right_shift, | |
479 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 480 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
481 | const Symbol_value<size>* psymval, |
482 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
483 | { | |
484 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
485 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
486 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
487 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
488 | ||
489 | val &= ~dst_mask; | |
490 | reloc &= dst_mask; | |
491 | ||
492 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
493 | } | |
494 | ||
495 | // Do a simple relocation using a symbol value with the addend in | |
496 | // the relocation, unaligned. | |
497 | template<int valsize> | |
498 | static inline void | |
499 | rela_ua(unsigned char* view, | |
500 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
6fa2a40b | 501 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
502 | const Symbol_value<size>* psymval, |
503 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
504 | { | |
505 | typedef typename elfcpp::Swap_unaligned<valsize, | |
506 | big_endian>::Valtype Valtype; | |
507 | unsigned char* wv = view; | |
508 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
509 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
510 | ||
511 | val &= ~dst_mask; | |
512 | reloc &= dst_mask; | |
513 | ||
514 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
515 | } | |
516 | ||
517 | // Do a simple PC relative relocation with a Symbol_value with the | |
518 | // addend in the relocation. | |
519 | template<int valsize> | |
520 | static inline void | |
521 | pcrela(unsigned char* view, | |
522 | unsigned int right_shift, | |
523 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 524 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
525 | const Symbol_value<size>* psymval, |
526 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
527 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
528 | { | |
529 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
530 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
531 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
532 | Valtype reloc = ((psymval->value(object, addend) - address) | |
533 | >> right_shift); | |
534 | ||
535 | val &= ~dst_mask; | |
536 | reloc &= dst_mask; | |
537 | ||
538 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
539 | } | |
540 | ||
541 | template<int valsize> | |
542 | static inline void | |
543 | pcrela_unaligned(unsigned char* view, | |
6fa2a40b | 544 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
545 | const Symbol_value<size>* psymval, |
546 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
547 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
548 | { | |
549 | typedef typename elfcpp::Swap_unaligned<valsize, | |
550 | big_endian>::Valtype Valtype; | |
551 | unsigned char* wv = view; | |
552 | Valtype reloc = (psymval->value(object, addend) - address); | |
553 | ||
554 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
555 | } | |
556 | ||
557 | typedef Sparc_relocate_functions<size, big_endian> This; | |
558 | typedef Sparc_relocate_functions<size, true> This_insn; | |
559 | ||
560 | public: | |
561 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
562 | static inline void | |
563 | wdisp30(unsigned char* view, | |
6fa2a40b | 564 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
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, 2, 0x3fffffff, object, | |
570 | psymval, addend, address); | |
571 | } | |
572 | ||
573 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
574 | static inline void | |
575 | wdisp22(unsigned char* view, | |
6fa2a40b | 576 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
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, 2, 0x003fffff, object, | |
582 | psymval, addend, address); | |
583 | } | |
584 | ||
585 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
586 | static inline void | |
587 | wdisp19(unsigned char* view, | |
6fa2a40b | 588 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
589 | const Symbol_value<size>* psymval, |
590 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
591 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
592 | { | |
593 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
594 | psymval, addend, address); | |
595 | } | |
596 | ||
597 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
598 | static inline void | |
599 | wdisp16(unsigned char* view, | |
6fa2a40b | 600 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
601 | const Symbol_value<size>* psymval, |
602 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
603 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
604 | { | |
605 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
606 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
607 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
608 | Valtype reloc = ((psymval->value(object, addend) - address) | |
609 | >> 2); | |
610 | ||
611 | // The relocation value is split between the low 14 bits, | |
612 | // and bits 20-21. | |
613 | val &= ~((0x3 << 20) | 0x3fff); | |
614 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
615 | | (reloc & 0x3ffff)); | |
616 | ||
617 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
618 | } | |
619 | ||
620 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 | |
621 | static inline void | |
622 | pc22(unsigned char* view, | |
6fa2a40b | 623 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
624 | const Symbol_value<size>* psymval, |
625 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
626 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
627 | { | |
628 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
629 | psymval, addend, address); | |
630 | } | |
631 | ||
632 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
633 | static inline void | |
634 | pc10(unsigned char* view, | |
6fa2a40b | 635 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
636 | const Symbol_value<size>* psymval, |
637 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
638 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
639 | { | |
640 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
641 | psymval, addend, address); | |
642 | } | |
643 | ||
644 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
645 | static inline void | |
646 | hi22(unsigned char* view, | |
2ea97941 | 647 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
648 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
649 | { | |
2ea97941 | 650 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
651 | } |
652 | ||
653 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
654 | static inline void | |
655 | hi22(unsigned char* view, | |
6fa2a40b | 656 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
657 | const Symbol_value<size>* psymval, |
658 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
659 | { | |
660 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
661 | } | |
662 | ||
663 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
664 | static inline void | |
665 | pcplt22(unsigned char* view, | |
6fa2a40b | 666 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
667 | const Symbol_value<size>* psymval, |
668 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
669 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
670 | { | |
671 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
672 | psymval, addend, address); | |
673 | } | |
674 | ||
675 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
676 | static inline void | |
677 | lo10(unsigned char* view, | |
2ea97941 | 678 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
679 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
680 | { | |
2ea97941 | 681 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
682 | } |
683 | ||
684 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
685 | static inline void | |
686 | lo10(unsigned char* view, | |
6fa2a40b | 687 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
688 | const Symbol_value<size>* psymval, |
689 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
690 | { | |
691 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
692 | } | |
693 | ||
694 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
695 | static inline void | |
696 | lo10(unsigned char* view, | |
6fa2a40b | 697 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
698 | const Symbol_value<size>* psymval, |
699 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
700 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
701 | { | |
702 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
703 | psymval, addend, address); | |
704 | } | |
705 | ||
706 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
707 | static inline void | |
708 | olo10(unsigned char* view, | |
6fa2a40b | 709 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
710 | const Symbol_value<size>* psymval, |
711 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
712 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
713 | { | |
714 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
715 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
716 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
717 | Valtype reloc = psymval->value(object, addend); | |
718 | ||
719 | val &= ~0x1fff; | |
720 | reloc &= 0x3ff; | |
721 | reloc += addend2; | |
722 | reloc &= 0x1fff; | |
723 | ||
724 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
725 | } | |
726 | ||
727 | // R_SPARC_22: (Symbol + Addend) | |
728 | static inline void | |
729 | rela32_22(unsigned char* view, | |
6fa2a40b | 730 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
731 | const Symbol_value<size>* psymval, |
732 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
733 | { | |
734 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
735 | } | |
736 | ||
737 | // R_SPARC_13: (Symbol + Addend) | |
738 | static inline void | |
739 | rela32_13(unsigned char* view, | |
2ea97941 | 740 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
741 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
742 | { | |
2ea97941 | 743 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
744 | } |
745 | ||
746 | // R_SPARC_13: (Symbol + Addend) | |
747 | static inline void | |
748 | rela32_13(unsigned char* view, | |
6fa2a40b | 749 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
750 | const Symbol_value<size>* psymval, |
751 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
752 | { | |
753 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
754 | } | |
755 | ||
756 | // R_SPARC_UA16: (Symbol + Addend) | |
757 | static inline void | |
758 | ua16(unsigned char* view, | |
6fa2a40b | 759 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
760 | const Symbol_value<size>* psymval, |
761 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
762 | { | |
763 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
764 | } | |
765 | ||
766 | // R_SPARC_UA32: (Symbol + Addend) | |
767 | static inline void | |
768 | ua32(unsigned char* view, | |
6fa2a40b | 769 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
770 | const Symbol_value<size>* psymval, |
771 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
772 | { | |
773 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
774 | } | |
775 | ||
776 | // R_SPARC_UA64: (Symbol + Addend) | |
777 | static inline void | |
778 | ua64(unsigned char* view, | |
6fa2a40b | 779 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
780 | const Symbol_value<size>* psymval, |
781 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
782 | { | |
783 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
784 | object, psymval, addend); | |
785 | } | |
786 | ||
787 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
788 | static inline void | |
789 | disp8(unsigned char* view, | |
6fa2a40b | 790 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
791 | const Symbol_value<size>* psymval, |
792 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
793 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
794 | { | |
795 | This::template pcrela_unaligned<8>(view, object, psymval, | |
796 | addend, address); | |
797 | } | |
798 | ||
799 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
800 | static inline void | |
801 | disp16(unsigned char* view, | |
6fa2a40b | 802 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
803 | const Symbol_value<size>* psymval, |
804 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
805 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
806 | { | |
807 | This::template pcrela_unaligned<16>(view, object, psymval, | |
808 | addend, address); | |
809 | } | |
810 | ||
811 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
812 | static inline void | |
813 | disp32(unsigned char* view, | |
6fa2a40b | 814 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
815 | const Symbol_value<size>* psymval, |
816 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
817 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
818 | { | |
819 | This::template pcrela_unaligned<32>(view, object, psymval, | |
820 | addend, address); | |
821 | } | |
822 | ||
823 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
824 | static inline void | |
825 | disp64(unsigned char* view, | |
6fa2a40b | 826 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
827 | const Symbol_value<size>* psymval, |
828 | elfcpp::Elf_Xword addend, | |
829 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
830 | { | |
831 | This::template pcrela_unaligned<64>(view, object, psymval, | |
832 | addend, address); | |
833 | } | |
834 | ||
835 | // R_SPARC_H44: (Symbol + Addend) >> 22 | |
836 | static inline void | |
837 | h44(unsigned char* view, | |
6fa2a40b | 838 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
839 | const Symbol_value<size>* psymval, |
840 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
841 | { | |
842 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
843 | } | |
844 | ||
845 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
846 | static inline void | |
847 | m44(unsigned char* view, | |
6fa2a40b | 848 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
849 | const Symbol_value<size>* psymval, |
850 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
851 | { | |
852 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
853 | } | |
854 | ||
855 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
856 | static inline void | |
857 | l44(unsigned char* view, | |
6fa2a40b | 858 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
859 | const Symbol_value<size>* psymval, |
860 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
861 | { | |
862 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
863 | } | |
864 | ||
865 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
866 | static inline void | |
867 | hh22(unsigned char* view, | |
6fa2a40b | 868 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
869 | const Symbol_value<size>* psymval, |
870 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
871 | { | |
872 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
873 | } | |
874 | ||
875 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
876 | static inline void | |
877 | pc_hh22(unsigned char* view, | |
6fa2a40b | 878 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
879 | const Symbol_value<size>* psymval, |
880 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
881 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
882 | { | |
883 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
884 | psymval, addend, address); | |
885 | } | |
886 | ||
887 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
888 | static inline void | |
889 | hm10(unsigned char* view, | |
6fa2a40b | 890 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
891 | const Symbol_value<size>* psymval, |
892 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
893 | { | |
894 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
895 | } | |
896 | ||
897 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
898 | static inline void | |
899 | pc_hm10(unsigned char* view, | |
6fa2a40b | 900 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
901 | const Symbol_value<size>* psymval, |
902 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
903 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
904 | { | |
905 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
906 | psymval, addend, address); | |
907 | } | |
908 | ||
909 | // R_SPARC_11: (Symbol + Addend) | |
910 | static inline void | |
911 | rela32_11(unsigned char* view, | |
6fa2a40b | 912 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
913 | const Symbol_value<size>* psymval, |
914 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
915 | { | |
916 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
917 | } | |
918 | ||
919 | // R_SPARC_10: (Symbol + Addend) | |
920 | static inline void | |
921 | rela32_10(unsigned char* view, | |
6fa2a40b | 922 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
923 | const Symbol_value<size>* psymval, |
924 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
925 | { | |
926 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
927 | } | |
928 | ||
929 | // R_SPARC_7: (Symbol + Addend) | |
930 | static inline void | |
931 | rela32_7(unsigned char* view, | |
6fa2a40b | 932 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
933 | const Symbol_value<size>* psymval, |
934 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
935 | { | |
936 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
937 | } | |
938 | ||
939 | // R_SPARC_6: (Symbol + Addend) | |
940 | static inline void | |
941 | rela32_6(unsigned char* view, | |
6fa2a40b | 942 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
943 | const Symbol_value<size>* psymval, |
944 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
945 | { | |
946 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
947 | } | |
948 | ||
949 | // R_SPARC_5: (Symbol + Addend) | |
950 | static inline void | |
951 | rela32_5(unsigned char* view, | |
6fa2a40b | 952 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
953 | const Symbol_value<size>* psymval, |
954 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
955 | { | |
956 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
957 | } | |
958 | ||
959 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
960 | static inline void | |
961 | ldo_hix22(unsigned char* view, | |
2ea97941 | 962 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
963 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
964 | { | |
2ea97941 | 965 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
966 | } |
967 | ||
968 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
969 | static inline void | |
970 | ldo_lox10(unsigned char* view, | |
2ea97941 | 971 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
972 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
973 | { | |
974 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
975 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
976 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 977 | Valtype reloc = (value + addend); |
f5314dd5 DM |
978 | |
979 | val &= ~0x1fff; | |
980 | reloc &= 0x3ff; | |
981 | ||
982 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
983 | } | |
984 | ||
985 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
986 | static inline void | |
987 | hix22(unsigned char* view, | |
2ea97941 | 988 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
989 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
990 | { | |
991 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
992 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
993 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 994 | Valtype reloc = (value + addend); |
f5314dd5 DM |
995 | |
996 | val &= ~0x3fffff; | |
997 | ||
998 | reloc ^= ~(Valtype)0; | |
999 | reloc >>= 10; | |
1000 | ||
1001 | reloc &= 0x3fffff; | |
1002 | ||
1003 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1004 | } | |
1005 | ||
1006 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1007 | static inline void | |
1008 | hix22(unsigned char* view, | |
6fa2a40b | 1009 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1010 | const Symbol_value<size>* psymval, |
1011 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1012 | { | |
1013 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1014 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1015 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1016 | Valtype reloc = psymval->value(object, addend); | |
1017 | ||
1018 | val &= ~0x3fffff; | |
1019 | ||
1020 | reloc ^= ~(Valtype)0; | |
1021 | reloc >>= 10; | |
1022 | ||
1023 | reloc &= 0x3fffff; | |
1024 | ||
1025 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1026 | } | |
1027 | ||
1028 | ||
1029 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1030 | static inline void | |
1031 | lox10(unsigned char* view, | |
2ea97941 | 1032 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1033 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1034 | { | |
1035 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1036 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1037 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1038 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1039 | |
1040 | val &= ~0x1fff; | |
1041 | reloc &= 0x3ff; | |
1042 | reloc |= 0x1c00; | |
1043 | ||
1044 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1045 | } | |
1046 | ||
1047 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 | |
1048 | static inline void | |
1049 | lox10(unsigned char* view, | |
6fa2a40b | 1050 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1051 | const Symbol_value<size>* psymval, |
1052 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1053 | { | |
1054 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1055 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1056 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1057 | Valtype reloc = psymval->value(object, addend); | |
1058 | ||
1059 | val &= ~0x1fff; | |
1060 | reloc &= 0x3ff; | |
1061 | reloc |= 0x1c00; | |
1062 | ||
1063 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1064 | } | |
1065 | }; | |
1066 | ||
1067 | // Get the GOT section, creating it if necessary. | |
1068 | ||
1069 | template<int size, bool big_endian> | |
1070 | Output_data_got<size, big_endian>* | |
1071 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1072 | Layout* layout) | |
1073 | { | |
1074 | if (this->got_ == NULL) | |
1075 | { | |
1076 | gold_assert(symtab != NULL && layout != NULL); | |
1077 | ||
1078 | this->got_ = new Output_data_got<size, big_endian>(); | |
1079 | ||
82742395 ILT |
1080 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1081 | (elfcpp::SHF_ALLOC | |
1082 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1083 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1084 | |
1085 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1086 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1087 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1088 | this->got_, |
1089 | 0, 0, elfcpp::STT_OBJECT, | |
1090 | elfcpp::STB_LOCAL, | |
1091 | elfcpp::STV_HIDDEN, 0, | |
1092 | false, false); | |
1093 | } | |
1094 | ||
1095 | return this->got_; | |
1096 | } | |
1097 | ||
1098 | // Get the dynamic reloc section, creating it if necessary. | |
1099 | ||
1100 | template<int size, bool big_endian> | |
1101 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1102 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1103 | { | |
1104 | if (this->rela_dyn_ == NULL) | |
1105 | { | |
1106 | gold_assert(layout != NULL); | |
d98bc257 | 1107 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1108 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1109 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1110 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1111 | } |
1112 | return this->rela_dyn_; | |
1113 | } | |
1114 | ||
1115 | // A class to handle the PLT data. | |
1116 | ||
1117 | template<int size, bool big_endian> | |
1118 | class Output_data_plt_sparc : public Output_section_data | |
1119 | { | |
1120 | public: | |
1121 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1122 | size, big_endian> Reloc_section; | |
1123 | ||
1124 | Output_data_plt_sparc(Layout*); | |
1125 | ||
1126 | // Add an entry to the PLT. | |
1127 | void add_entry(Symbol* gsym); | |
1128 | ||
1129 | // Return the .rela.plt section data. | |
1130 | const Reloc_section* rel_plt() const | |
1131 | { | |
1132 | return this->rel_; | |
1133 | } | |
1134 | ||
0e70b911 CC |
1135 | // Return the number of PLT entries. |
1136 | unsigned int | |
1137 | entry_count() const | |
1138 | { return this->count_; } | |
1139 | ||
1140 | // Return the offset of the first non-reserved PLT entry. | |
1141 | static unsigned int | |
1142 | first_plt_entry_offset() | |
1143 | { return 4 * base_plt_entry_size; } | |
1144 | ||
1145 | // Return the size of a PLT entry. | |
1146 | static unsigned int | |
1147 | get_plt_entry_size() | |
1148 | { return base_plt_entry_size; } | |
1149 | ||
f5314dd5 DM |
1150 | protected: |
1151 | void do_adjust_output_section(Output_section* os); | |
1152 | ||
7d9e3d98 ILT |
1153 | // Write to a map file. |
1154 | void | |
1155 | do_print_to_mapfile(Mapfile* mapfile) const | |
1156 | { mapfile->print_output_data(this, _("** PLT")); } | |
1157 | ||
f5314dd5 DM |
1158 | private: |
1159 | // The size of an entry in the PLT. | |
1160 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1161 | ||
1162 | static const unsigned int plt_entries_per_block = 160; | |
1163 | static const unsigned int plt_insn_chunk_size = 24; | |
1164 | static const unsigned int plt_pointer_chunk_size = 8; | |
1165 | static const unsigned int plt_block_size = | |
1166 | (plt_entries_per_block | |
1167 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1168 | ||
1169 | // Set the final size. | |
1170 | void | |
1171 | set_final_data_size() | |
1172 | { | |
1173 | unsigned int full_count = this->count_ + 4; | |
1174 | unsigned int extra = (size == 32 ? 4 : 0); | |
1175 | ||
1176 | if (size == 32 || full_count < 32768) | |
1177 | this->set_data_size((full_count * base_plt_entry_size) + extra); | |
1178 | else | |
1179 | { | |
1180 | unsigned int ext_cnt = full_count - 32768; | |
1181 | ||
1182 | this->set_data_size((32768 * base_plt_entry_size) | |
1183 | + (ext_cnt | |
1184 | * (plt_insn_chunk_size | |
1185 | + plt_pointer_chunk_size))); | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | // Write out the PLT data. | |
1190 | void | |
1191 | do_write(Output_file*); | |
1192 | ||
1193 | // The reloc section. | |
1194 | Reloc_section* rel_; | |
1195 | // The number of PLT entries. | |
1196 | unsigned int count_; | |
1197 | }; | |
1198 | ||
4f2a9edd ILT |
1199 | // Define the constants as required by C++ standard. |
1200 | ||
1201 | template<int size, bool big_endian> | |
1202 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1203 | ||
1204 | template<int size, bool big_endian> | |
1205 | const unsigned int | |
1206 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1207 | ||
1208 | template<int size, bool big_endian> | |
1209 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1210 | ||
1211 | template<int size, bool big_endian> | |
1212 | const unsigned int | |
1213 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1214 | ||
1215 | template<int size, bool big_endian> | |
1216 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1217 | ||
f5314dd5 DM |
1218 | // Create the PLT section. The ordinary .got section is an argument, |
1219 | // since we need to refer to the start. | |
1220 | ||
1221 | template<int size, bool big_endian> | |
1222 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
1223 | : Output_section_data(size == 32 ? 4 : 8), count_(0) | |
1224 | { | |
d98bc257 | 1225 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1226 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1227 | elfcpp::SHF_ALLOC, this->rel_, |
1228 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1229 | } |
1230 | ||
1231 | template<int size, bool big_endian> | |
1232 | void | |
1233 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1234 | { | |
1235 | os->set_entsize(0); | |
1236 | } | |
1237 | ||
1238 | // Add an entry to the PLT. | |
1239 | ||
1240 | template<int size, bool big_endian> | |
1241 | void | |
1242 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol* gsym) | |
1243 | { | |
1244 | gold_assert(!gsym->has_plt_offset()); | |
1245 | ||
1246 | unsigned int index = this->count_ + 4; | |
1247 | section_offset_type plt_offset; | |
1248 | ||
1249 | if (size == 32 || index < 32768) | |
1250 | plt_offset = index * base_plt_entry_size; | |
1251 | else | |
1252 | { | |
1253 | unsigned int ext_index = index - 32768; | |
1254 | ||
1255 | plt_offset = (32768 * base_plt_entry_size) | |
1256 | + ((ext_index / plt_entries_per_block) | |
1257 | * plt_block_size) | |
1258 | + ((ext_index % plt_entries_per_block) | |
1259 | * plt_insn_chunk_size); | |
1260 | } | |
1261 | ||
1262 | gsym->set_plt_offset(plt_offset); | |
1263 | ||
1264 | ++this->count_; | |
1265 | ||
1266 | // Every PLT entry needs a reloc. | |
1267 | gsym->set_needs_dynsym_entry(); | |
1268 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1269 | plt_offset, 0); | |
1270 | ||
1271 | // Note that we don't need to save the symbol. The contents of the | |
1272 | // PLT are independent of which symbols are used. The symbols only | |
1273 | // appear in the relocations. | |
1274 | } | |
1275 | ||
1276 | static const unsigned int sparc_nop = 0x01000000; | |
1277 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1278 | static const unsigned int sparc_branch_always = 0x30800000; | |
1279 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1280 | static const unsigned int sparc_mov = 0x80100000; | |
1281 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1282 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1283 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1284 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1285 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1286 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1287 | ||
1288 | // Write out the PLT. | |
1289 | ||
1290 | template<int size, bool big_endian> | |
1291 | void | |
1292 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1293 | { | |
2ea97941 | 1294 | const off_t offset = this->offset(); |
f5314dd5 DM |
1295 | const section_size_type oview_size = |
1296 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1297 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1298 | unsigned char* pov = oview; |
1299 | ||
1300 | memset(pov, 0, base_plt_entry_size * 4); | |
1301 | pov += base_plt_entry_size * 4; | |
1302 | ||
1303 | unsigned int plt_offset = base_plt_entry_size * 4; | |
1304 | const unsigned int count = this->count_; | |
1305 | ||
1306 | if (size == 64) | |
1307 | { | |
1308 | unsigned int limit; | |
1309 | ||
1310 | limit = (count > 32768 ? 32768 : count); | |
1311 | ||
1312 | for (unsigned int i = 0; i < limit; ++i) | |
1313 | { | |
1314 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1315 | sparc_sethi_g1 + plt_offset); | |
1316 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1317 | sparc_branch_always_pt + | |
1318 | (((base_plt_entry_size - | |
1319 | (plt_offset + 4)) >> 2) & | |
1320 | 0x7ffff)); | |
1321 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1322 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1323 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1324 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1325 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1326 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1327 | ||
1328 | pov += base_plt_entry_size; | |
1329 | plt_offset += base_plt_entry_size; | |
1330 | } | |
1331 | ||
1332 | if (count > 32768) | |
1333 | { | |
1334 | unsigned int ext_cnt = count - 32768; | |
1335 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1336 | ||
1337 | for (unsigned int i = 0; i < blks; ++i) | |
1338 | { | |
1339 | unsigned int data_off = (plt_entries_per_block | |
1340 | * plt_insn_chunk_size) - 4; | |
1341 | ||
1342 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1343 | { | |
1344 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1345 | sparc_mov_o7_g5); | |
1346 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1347 | sparc_call_plus_8); | |
1348 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1349 | sparc_nop); | |
1350 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1351 | sparc_ldx_o7_imm_g1 + | |
1352 | (data_off & 0x1fff)); | |
1353 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1354 | sparc_jmpl_o7_g1_g1); | |
1355 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1356 | sparc_mov_g5_o7); | |
1357 | ||
1358 | elfcpp::Swap<64, big_endian>::writeval( | |
1359 | pov + 0x4 + data_off, | |
1360 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1361 | ||
1362 | pov += plt_insn_chunk_size; | |
1363 | data_off -= 16; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1368 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1369 | { | |
1370 | unsigned int data_off = (sub_blk_cnt | |
1371 | * plt_insn_chunk_size) - 4; | |
1372 | ||
1373 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1374 | { | |
1375 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1376 | sparc_mov_o7_g5); | |
1377 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1378 | sparc_call_plus_8); | |
1379 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1380 | sparc_nop); | |
1381 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1382 | sparc_ldx_o7_imm_g1 + | |
1383 | (data_off & 0x1fff)); | |
1384 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1385 | sparc_jmpl_o7_g1_g1); | |
1386 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1387 | sparc_mov_g5_o7); | |
1388 | ||
1389 | elfcpp::Swap<64, big_endian>::writeval( | |
1390 | pov + 0x4 + data_off, | |
1391 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1392 | ||
1393 | pov += plt_insn_chunk_size; | |
1394 | data_off -= 16; | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | } | |
1399 | else | |
1400 | { | |
1401 | for (unsigned int i = 0; i < count; ++i) | |
1402 | { | |
1403 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1404 | sparc_sethi_g1 + plt_offset); | |
1405 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1406 | sparc_branch_always + | |
1407 | (((- (plt_offset + 4)) >> 2) & | |
1408 | 0x003fffff)); | |
1409 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1410 | ||
1411 | pov += base_plt_entry_size; | |
1412 | plt_offset += base_plt_entry_size; | |
1413 | } | |
1414 | ||
1415 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1416 | pov += 4; | |
1417 | } | |
1418 | ||
1419 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1420 | ||
2ea97941 | 1421 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1422 | } |
1423 | ||
1424 | // Create a PLT entry for a global symbol. | |
1425 | ||
1426 | template<int size, bool big_endian> | |
1427 | void | |
1428 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1429 | Layout* layout, | |
1430 | Symbol* gsym) | |
1431 | { | |
1432 | if (gsym->has_plt_offset()) | |
1433 | return; | |
1434 | ||
1435 | if (this->plt_ == NULL) | |
1436 | { | |
1437 | // Create the GOT sections first. | |
1438 | this->got_section(symtab, layout); | |
1439 | ||
612a8d3d DM |
1440 | // Ensure that .rela.dyn always appears before .rela.plt This is |
1441 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1442 | // needs to include .rela.plt in it's range. | |
1443 | this->rela_dyn_section(layout); | |
1444 | ||
f5314dd5 DM |
1445 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); |
1446 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1447 | (elfcpp::SHF_ALLOC | |
1448 | | elfcpp::SHF_EXECINSTR | |
1449 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1450 | this->plt_, ORDER_PLT, false); |
f5314dd5 DM |
1451 | |
1452 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1453 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
99fff23b | 1454 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1455 | this->plt_, |
1456 | 0, 0, elfcpp::STT_OBJECT, | |
1457 | elfcpp::STB_LOCAL, | |
1458 | elfcpp::STV_HIDDEN, 0, | |
1459 | false, false); | |
1460 | } | |
1461 | ||
1462 | this->plt_->add_entry(gsym); | |
1463 | } | |
1464 | ||
0e70b911 CC |
1465 | // Return the number of entries in the PLT. |
1466 | ||
1467 | template<int size, bool big_endian> | |
1468 | unsigned int | |
1469 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1470 | { | |
1471 | if (this->plt_ == NULL) | |
1472 | return 0; | |
1473 | return this->plt_->entry_count(); | |
1474 | } | |
1475 | ||
1476 | // Return the offset of the first non-reserved PLT entry. | |
1477 | ||
1478 | template<int size, bool big_endian> | |
1479 | unsigned int | |
1480 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1481 | { | |
1482 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1483 | } | |
1484 | ||
1485 | // Return the size of each PLT entry. | |
1486 | ||
1487 | template<int size, bool big_endian> | |
1488 | unsigned int | |
1489 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1490 | { | |
1491 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1492 | } | |
1493 | ||
f5314dd5 DM |
1494 | // Create a GOT entry for the TLS module index. |
1495 | ||
1496 | template<int size, bool big_endian> | |
1497 | unsigned int | |
6fa2a40b CC |
1498 | Target_sparc<size, big_endian>::got_mod_index_entry( |
1499 | Symbol_table* symtab, | |
1500 | Layout* layout, | |
1501 | Sized_relobj_file<size, big_endian>* object) | |
f5314dd5 DM |
1502 | { |
1503 | if (this->got_mod_index_offset_ == -1U) | |
1504 | { | |
1505 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1506 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1507 | Output_data_got<size, big_endian>* got; | |
1508 | unsigned int got_offset; | |
1509 | ||
1510 | got = this->got_section(symtab, layout); | |
1511 | got_offset = got->add_constant(0); | |
1512 | rela_dyn->add_local(object, 0, | |
1513 | (size == 64 ? | |
1514 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1515 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1516 | got_offset, 0); | |
1517 | got->add_constant(0); | |
1518 | this->got_mod_index_offset_ = got_offset; | |
1519 | } | |
1520 | return this->got_mod_index_offset_; | |
1521 | } | |
1522 | ||
f5314dd5 DM |
1523 | // Optimize the TLS relocation type based on what we know about the |
1524 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1525 | // known at link time. | |
1526 | ||
1527 | static tls::Tls_optimization | |
1528 | optimize_tls_reloc(bool is_final, int r_type) | |
1529 | { | |
1530 | // If we are generating a shared library, then we can't do anything | |
1531 | // in the linker. | |
1532 | if (parameters->options().shared()) | |
1533 | return tls::TLSOPT_NONE; | |
1534 | ||
1535 | switch (r_type) | |
1536 | { | |
1537 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1538 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1539 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1540 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1541 | // These are General-Dynamic which permits fully general TLS | |
1542 | // access. Since we know that we are generating an executable, | |
1543 | // we can convert this to Initial-Exec. If we also know that | |
1544 | // this is a local symbol, we can further switch to Local-Exec. | |
1545 | if (is_final) | |
1546 | return tls::TLSOPT_TO_LE; | |
1547 | return tls::TLSOPT_TO_IE; | |
1548 | ||
1549 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1550 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1551 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1552 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1553 | // This is Local-Dynamic, which refers to a local symbol in the | |
1554 | // dynamic TLS block. Since we know that we generating an | |
1555 | // executable, we can switch to Local-Exec. | |
1556 | return tls::TLSOPT_TO_LE; | |
1557 | ||
1558 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1559 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1560 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1561 | // Another type of Local-Dynamic relocation. | |
1562 | return tls::TLSOPT_TO_LE; | |
1563 | ||
1564 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1565 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1566 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1567 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1568 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1569 | // These are Initial-Exec relocs which get the thread offset |
1570 | // from the GOT. If we know that we are linking against the | |
1571 | // local symbol, we can switch to Local-Exec, which links the | |
1572 | // thread offset into the instruction. | |
1573 | if (is_final) | |
1574 | return tls::TLSOPT_TO_LE; | |
1575 | return tls::TLSOPT_NONE; | |
1576 | ||
1577 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1578 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1579 | // When we already have Local-Exec, there is nothing further we | |
1580 | // can do. | |
1581 | return tls::TLSOPT_NONE; | |
1582 | ||
1583 | default: | |
1584 | gold_unreachable(); | |
1585 | } | |
1586 | } | |
1587 | ||
95a2c8d6 RS |
1588 | // Get the Reference_flags for a particular relocation. |
1589 | ||
1590 | template<int size, bool big_endian> | |
1591 | int | |
1592 | Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) | |
1593 | { | |
1594 | r_type &= 0xff; | |
1595 | switch (r_type) | |
1596 | { | |
1597 | case elfcpp::R_SPARC_NONE: | |
1598 | case elfcpp::R_SPARC_REGISTER: | |
1599 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1600 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1601 | // No symbol reference. | |
1602 | return 0; | |
1603 | ||
1604 | case elfcpp::R_SPARC_UA64: | |
1605 | case elfcpp::R_SPARC_64: | |
1606 | case elfcpp::R_SPARC_HIX22: | |
1607 | case elfcpp::R_SPARC_LOX10: | |
1608 | case elfcpp::R_SPARC_H44: | |
1609 | case elfcpp::R_SPARC_M44: | |
1610 | case elfcpp::R_SPARC_L44: | |
1611 | case elfcpp::R_SPARC_HH22: | |
1612 | case elfcpp::R_SPARC_HM10: | |
1613 | case elfcpp::R_SPARC_LM22: | |
1614 | case elfcpp::R_SPARC_HI22: | |
1615 | case elfcpp::R_SPARC_LO10: | |
1616 | case elfcpp::R_SPARC_OLO10: | |
1617 | case elfcpp::R_SPARC_UA32: | |
1618 | case elfcpp::R_SPARC_32: | |
1619 | case elfcpp::R_SPARC_UA16: | |
1620 | case elfcpp::R_SPARC_16: | |
1621 | case elfcpp::R_SPARC_11: | |
1622 | case elfcpp::R_SPARC_10: | |
1623 | case elfcpp::R_SPARC_8: | |
1624 | case elfcpp::R_SPARC_7: | |
1625 | case elfcpp::R_SPARC_6: | |
1626 | case elfcpp::R_SPARC_5: | |
1627 | return Symbol::ABSOLUTE_REF; | |
1628 | ||
1629 | case elfcpp::R_SPARC_DISP8: | |
1630 | case elfcpp::R_SPARC_DISP16: | |
1631 | case elfcpp::R_SPARC_DISP32: | |
1632 | case elfcpp::R_SPARC_DISP64: | |
1633 | case elfcpp::R_SPARC_PC_HH22: | |
1634 | case elfcpp::R_SPARC_PC_HM10: | |
1635 | case elfcpp::R_SPARC_PC_LM22: | |
1636 | case elfcpp::R_SPARC_PC10: | |
1637 | case elfcpp::R_SPARC_PC22: | |
1638 | case elfcpp::R_SPARC_WDISP30: | |
1639 | case elfcpp::R_SPARC_WDISP22: | |
1640 | case elfcpp::R_SPARC_WDISP19: | |
1641 | case elfcpp::R_SPARC_WDISP16: | |
1642 | return Symbol::RELATIVE_REF; | |
1643 | ||
1644 | case elfcpp::R_SPARC_PLT64: | |
1645 | case elfcpp::R_SPARC_PLT32: | |
1646 | case elfcpp::R_SPARC_HIPLT22: | |
1647 | case elfcpp::R_SPARC_LOPLT10: | |
1648 | case elfcpp::R_SPARC_PCPLT10: | |
1649 | return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF; | |
1650 | ||
1651 | case elfcpp::R_SPARC_PCPLT32: | |
1652 | case elfcpp::R_SPARC_PCPLT22: | |
1653 | case elfcpp::R_SPARC_WPLT30: | |
1654 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; | |
1655 | ||
1656 | case elfcpp::R_SPARC_GOTDATA_OP: | |
1657 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
1658 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
1659 | case elfcpp::R_SPARC_GOT10: | |
1660 | case elfcpp::R_SPARC_GOT13: | |
1661 | case elfcpp::R_SPARC_GOT22: | |
1662 | // Absolute in GOT. | |
1663 | return Symbol::ABSOLUTE_REF; | |
1664 | ||
1665 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1666 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1667 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1668 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1669 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1670 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1671 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1672 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1673 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1674 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1675 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1676 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1677 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1678 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1679 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1680 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1681 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
1682 | case elfcpp::R_SPARC_TLS_IE_ADD: | |
1683 | return Symbol::TLS_REF; | |
1684 | ||
1685 | case elfcpp::R_SPARC_COPY: | |
1686 | case elfcpp::R_SPARC_GLOB_DAT: | |
1687 | case elfcpp::R_SPARC_JMP_SLOT: | |
1688 | case elfcpp::R_SPARC_RELATIVE: | |
1689 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1690 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1691 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1692 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1693 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1694 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1695 | default: | |
1696 | // Not expected. We will give an error later. | |
1697 | return 0; | |
1698 | } | |
1699 | } | |
1700 | ||
f5314dd5 DM |
1701 | // Generate a PLT entry slot for a call to __tls_get_addr |
1702 | template<int size, bool big_endian> | |
1703 | void | |
1704 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
1705 | Layout* layout, | |
1706 | Target_sparc<size, big_endian>* target) | |
1707 | { | |
1708 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
1709 | ||
1710 | target->make_plt_entry(symtab, layout, gsym); | |
1711 | } | |
1712 | ||
1713 | // Report an unsupported relocation against a local symbol. | |
1714 | ||
1715 | template<int size, bool big_endian> | |
1716 | void | |
1717 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
6fa2a40b | 1718 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1719 | unsigned int r_type) |
1720 | { | |
1721 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
1722 | object->name().c_str(), r_type); | |
1723 | } | |
1724 | ||
32b769e1 DM |
1725 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
1726 | // dynamic linker does not support it, issue an error. | |
1727 | ||
1728 | template<int size, bool big_endian> | |
1729 | void | |
1730 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
1731 | { | |
1732 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
1733 | ||
1734 | if (size == 64) | |
1735 | { | |
1736 | switch (r_type) | |
1737 | { | |
1738 | // These are the relocation types supported by glibc for sparc 64-bit. | |
1739 | case elfcpp::R_SPARC_RELATIVE: | |
1740 | case elfcpp::R_SPARC_COPY: | |
1741 | case elfcpp::R_SPARC_64: | |
1742 | case elfcpp::R_SPARC_GLOB_DAT: | |
1743 | case elfcpp::R_SPARC_JMP_SLOT: | |
1744 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
1745 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
1746 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
1747 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1748 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1749 | case elfcpp::R_SPARC_8: | |
1750 | case elfcpp::R_SPARC_16: | |
1751 | case elfcpp::R_SPARC_DISP8: | |
1752 | case elfcpp::R_SPARC_DISP16: | |
1753 | case elfcpp::R_SPARC_DISP32: | |
1754 | case elfcpp::R_SPARC_WDISP30: | |
1755 | case elfcpp::R_SPARC_LO10: | |
1756 | case elfcpp::R_SPARC_HI22: | |
1757 | case elfcpp::R_SPARC_OLO10: | |
1758 | case elfcpp::R_SPARC_H44: | |
1759 | case elfcpp::R_SPARC_M44: | |
1760 | case elfcpp::R_SPARC_L44: | |
1761 | case elfcpp::R_SPARC_HH22: | |
1762 | case elfcpp::R_SPARC_HM10: | |
1763 | case elfcpp::R_SPARC_LM22: | |
1764 | case elfcpp::R_SPARC_UA16: | |
1765 | case elfcpp::R_SPARC_UA32: | |
1766 | case elfcpp::R_SPARC_UA64: | |
1767 | return; | |
1768 | ||
1769 | default: | |
1770 | break; | |
1771 | } | |
1772 | } | |
1773 | else | |
1774 | { | |
1775 | switch (r_type) | |
1776 | { | |
1777 | // These are the relocation types supported by glibc for sparc 32-bit. | |
1778 | case elfcpp::R_SPARC_RELATIVE: | |
1779 | case elfcpp::R_SPARC_COPY: | |
1780 | case elfcpp::R_SPARC_GLOB_DAT: | |
1781 | case elfcpp::R_SPARC_32: | |
1782 | case elfcpp::R_SPARC_JMP_SLOT: | |
1783 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
1784 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
1785 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
1786 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1787 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1788 | case elfcpp::R_SPARC_8: | |
1789 | case elfcpp::R_SPARC_16: | |
1790 | case elfcpp::R_SPARC_DISP8: | |
1791 | case elfcpp::R_SPARC_DISP16: | |
1792 | case elfcpp::R_SPARC_DISP32: | |
1793 | case elfcpp::R_SPARC_LO10: | |
1794 | case elfcpp::R_SPARC_WDISP30: | |
1795 | case elfcpp::R_SPARC_HI22: | |
1796 | case elfcpp::R_SPARC_UA16: | |
1797 | case elfcpp::R_SPARC_UA32: | |
1798 | return; | |
1799 | ||
1800 | default: | |
1801 | break; | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | // This prevents us from issuing more than one error per reloc | |
1806 | // section. But we can still wind up issuing more than one | |
1807 | // error per object file. | |
1808 | if (this->issued_non_pic_error_) | |
1809 | return; | |
33aea2fd | 1810 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
1811 | object->error(_("requires unsupported dynamic reloc; " |
1812 | "recompile with -fPIC")); | |
1813 | this->issued_non_pic_error_ = true; | |
1814 | return; | |
1815 | } | |
1816 | ||
f5314dd5 DM |
1817 | // Scan a relocation for a local symbol. |
1818 | ||
1819 | template<int size, bool big_endian> | |
1820 | inline void | |
1821 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
1822 | Symbol_table* symtab, |
1823 | Layout* layout, | |
1824 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 1825 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1826 | unsigned int data_shndx, |
1827 | Output_section* output_section, | |
1828 | const elfcpp::Rela<size, big_endian>& reloc, | |
1829 | unsigned int r_type, | |
1830 | const elfcpp::Sym<size, big_endian>& lsym) | |
1831 | { | |
1832 | unsigned int orig_r_type = r_type; | |
1833 | ||
1834 | r_type &= 0xff; | |
1835 | switch (r_type) | |
1836 | { | |
1837 | case elfcpp::R_SPARC_NONE: | |
1838 | case elfcpp::R_SPARC_REGISTER: | |
1839 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1840 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1841 | break; | |
1842 | ||
1843 | case elfcpp::R_SPARC_64: | |
1844 | case elfcpp::R_SPARC_32: | |
1845 | // If building a shared library (or a position-independent | |
1846 | // executable), we need to create a dynamic relocation for | |
1847 | // this location. The relocation applied at link time will | |
1848 | // apply the link-time value, so we flag the location with | |
1849 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
1850 | // relocate it easily. | |
1851 | if (parameters->options().output_is_position_independent()) | |
1852 | { | |
1853 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1854 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1855 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
1856 | output_section, data_shndx, | |
1857 | reloc.get_r_offset(), | |
397b129b | 1858 | reloc.get_r_addend(), false); |
f5314dd5 DM |
1859 | } |
1860 | break; | |
1861 | ||
1862 | case elfcpp::R_SPARC_HIX22: | |
1863 | case elfcpp::R_SPARC_LOX10: | |
1864 | case elfcpp::R_SPARC_H44: | |
1865 | case elfcpp::R_SPARC_M44: | |
1866 | case elfcpp::R_SPARC_L44: | |
1867 | case elfcpp::R_SPARC_HH22: | |
1868 | case elfcpp::R_SPARC_HM10: | |
1869 | case elfcpp::R_SPARC_LM22: | |
1870 | case elfcpp::R_SPARC_UA64: | |
1871 | case elfcpp::R_SPARC_UA32: | |
1872 | case elfcpp::R_SPARC_UA16: | |
1873 | case elfcpp::R_SPARC_HI22: | |
1874 | case elfcpp::R_SPARC_LO10: | |
1875 | case elfcpp::R_SPARC_OLO10: | |
1876 | case elfcpp::R_SPARC_16: | |
1877 | case elfcpp::R_SPARC_11: | |
1878 | case elfcpp::R_SPARC_10: | |
1879 | case elfcpp::R_SPARC_8: | |
1880 | case elfcpp::R_SPARC_7: | |
1881 | case elfcpp::R_SPARC_6: | |
1882 | case elfcpp::R_SPARC_5: | |
1883 | // If building a shared library (or a position-independent | |
1884 | // executable), we need to create a dynamic relocation for | |
1885 | // this location. | |
1886 | if (parameters->options().output_is_position_independent()) | |
1887 | { | |
1888 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
684b268a | 1889 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
32b769e1 DM |
1890 | |
1891 | check_non_pic(object, r_type); | |
f5314dd5 DM |
1892 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
1893 | { | |
f5314dd5 DM |
1894 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, |
1895 | data_shndx, reloc.get_r_offset(), | |
1896 | reloc.get_r_addend()); | |
1897 | } | |
1898 | else | |
1899 | { | |
f5314dd5 | 1900 | gold_assert(lsym.get_st_value() == 0); |
0da6fa6c DM |
1901 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
1902 | output_section, data_shndx, | |
1903 | reloc.get_r_offset(), | |
1904 | reloc.get_r_addend()); | |
f5314dd5 DM |
1905 | } |
1906 | } | |
1907 | break; | |
1908 | ||
1909 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 1910 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
1911 | case elfcpp::R_SPARC_WDISP22: |
1912 | case elfcpp::R_SPARC_WDISP19: | |
1913 | case elfcpp::R_SPARC_WDISP16: | |
1914 | case elfcpp::R_SPARC_DISP8: | |
1915 | case elfcpp::R_SPARC_DISP16: | |
1916 | case elfcpp::R_SPARC_DISP32: | |
1917 | case elfcpp::R_SPARC_DISP64: | |
1918 | case elfcpp::R_SPARC_PC10: | |
1919 | case elfcpp::R_SPARC_PC22: | |
1920 | break; | |
1921 | ||
024c4466 DM |
1922 | case elfcpp::R_SPARC_GOTDATA_OP: |
1923 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
1924 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
1925 | case elfcpp::R_SPARC_GOT10: |
1926 | case elfcpp::R_SPARC_GOT13: | |
1927 | case elfcpp::R_SPARC_GOT22: | |
1928 | { | |
1929 | // The symbol requires a GOT entry. | |
1930 | Output_data_got<size, big_endian>* got; | |
1931 | unsigned int r_sym; | |
1932 | ||
1933 | got = target->got_section(symtab, layout); | |
1934 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
1935 | ||
1936 | // If we are generating a shared object, we need to add a | |
1937 | // dynamic relocation for this symbol's GOT entry. | |
1938 | if (parameters->options().output_is_position_independent()) | |
1939 | { | |
1940 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
1941 | { | |
1942 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
1943 | unsigned int off; | |
1944 | ||
1945 | off = got->add_constant(0); | |
1946 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); | |
1947 | rela_dyn->add_local_relative(object, r_sym, | |
1948 | elfcpp::R_SPARC_RELATIVE, | |
397b129b | 1949 | got, off, 0, false); |
f5314dd5 DM |
1950 | } |
1951 | } | |
1952 | else | |
1953 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
1954 | } | |
1955 | break; | |
1956 | ||
1957 | // These are initial TLS relocs, which are expected when | |
1958 | // linking. | |
1959 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1960 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1961 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1962 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1963 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
1964 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1965 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1966 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1967 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1968 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1969 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1970 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1971 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1972 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1973 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1974 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1975 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
1976 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1977 | { | |
1978 | bool output_is_shared = parameters->options().shared(); | |
1979 | const tls::Tls_optimization optimized_type | |
1980 | = optimize_tls_reloc(!output_is_shared, r_type); | |
1981 | switch (r_type) | |
1982 | { | |
1983 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1984 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1985 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1986 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1987 | if (optimized_type == tls::TLSOPT_NONE) | |
1988 | { | |
1989 | // Create a pair of GOT entries for the module index and | |
1990 | // dtv-relative offset. | |
1991 | Output_data_got<size, big_endian>* got | |
1992 | = target->got_section(symtab, layout); | |
1993 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
1994 | unsigned int shndx = lsym.get_st_shndx(); |
1995 | bool is_ordinary; | |
1996 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
1997 | if (!is_ordinary) | |
1998 | object->error(_("local symbol %u has bad shndx %u"), | |
1999 | r_sym, shndx); | |
2000 | else | |
2001 | got->add_local_pair_with_rela(object, r_sym, | |
2002 | lsym.get_st_shndx(), | |
2003 | GOT_TYPE_TLS_PAIR, | |
2004 | target->rela_dyn_section(layout), | |
2005 | (size == 64 | |
2006 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2007 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2008 | 0); | |
f5314dd5 DM |
2009 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
2010 | generate_tls_call(symtab, layout, target); | |
2011 | } | |
2012 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2013 | unsupported_reloc_local(object, r_type); | |
2014 | break; | |
2015 | ||
2016 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2017 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2018 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2019 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2020 | if (optimized_type == tls::TLSOPT_NONE) | |
2021 | { | |
2022 | // Create a GOT entry for the module index. | |
2023 | target->got_mod_index_entry(symtab, layout, object); | |
2024 | ||
2025 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2026 | generate_tls_call(symtab, layout, target); | |
2027 | } | |
2028 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2029 | unsupported_reloc_local(object, r_type); | |
2030 | break; | |
2031 | ||
2032 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2033 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2034 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2035 | break; | |
2036 | ||
2037 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2038 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2039 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2040 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2041 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2042 | layout->set_has_static_tls(); |
2043 | if (optimized_type == tls::TLSOPT_NONE) | |
2044 | { | |
2045 | // Create a GOT entry for the tp-relative offset. | |
2046 | Output_data_got<size, big_endian>* got | |
2047 | = target->got_section(symtab, layout); | |
2048 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2049 | ||
2050 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
2051 | { | |
2052 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2053 | unsigned int off = got->add_constant(0); |
2054 | ||
2055 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 2056 | |
0da6fa6c DM |
2057 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
2058 | (size == 64 ? | |
2059 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2060 | elfcpp::R_SPARC_TLS_TPOFF32), | |
2061 | got, off, 0); | |
f5314dd5 DM |
2062 | } |
2063 | } | |
2064 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2065 | unsupported_reloc_local(object, r_type); | |
2066 | break; | |
2067 | ||
2068 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
2069 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2070 | layout->set_has_static_tls(); | |
2071 | if (output_is_shared) | |
2072 | { | |
2073 | // We need to create a dynamic relocation. | |
2074 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
2075 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2076 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2077 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, |
2078 | output_section, data_shndx, | |
2079 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
2080 | } |
2081 | break; | |
2082 | } | |
2083 | } | |
2084 | break; | |
2085 | ||
2086 | // These are relocations which should only be seen by the | |
2087 | // dynamic linker, and should never be seen here. | |
2088 | case elfcpp::R_SPARC_COPY: | |
2089 | case elfcpp::R_SPARC_GLOB_DAT: | |
2090 | case elfcpp::R_SPARC_JMP_SLOT: | |
2091 | case elfcpp::R_SPARC_RELATIVE: | |
2092 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2093 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2094 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2095 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2096 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2097 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2098 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2099 | object->name().c_str(), r_type); | |
2100 | break; | |
2101 | ||
2102 | default: | |
2103 | unsupported_reloc_local(object, r_type); | |
2104 | break; | |
2105 | } | |
2106 | } | |
2107 | ||
2108 | // Report an unsupported relocation against a global symbol. | |
2109 | ||
2110 | template<int size, bool big_endian> | |
2111 | void | |
2112 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
6fa2a40b | 2113 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2114 | unsigned int r_type, |
2115 | Symbol* gsym) | |
2116 | { | |
2117 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
2118 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
2119 | } | |
2120 | ||
2121 | // Scan a relocation for a global symbol. | |
2122 | ||
2123 | template<int size, bool big_endian> | |
2124 | inline void | |
2125 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2126 | Symbol_table* symtab, |
2127 | Layout* layout, | |
2128 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2129 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2130 | unsigned int data_shndx, |
2131 | Output_section* output_section, | |
2132 | const elfcpp::Rela<size, big_endian>& reloc, | |
2133 | unsigned int r_type, | |
2134 | Symbol* gsym) | |
2135 | { | |
2136 | unsigned int orig_r_type = r_type; | |
2137 | ||
9efe6174 ILT |
2138 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2139 | // section. We check here to avoid creating a dynamic reloc against | |
2140 | // _GLOBAL_OFFSET_TABLE_. | |
2141 | if (!target->has_got_section() | |
2142 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2143 | target->got_section(symtab, layout); | |
2144 | ||
f5314dd5 DM |
2145 | r_type &= 0xff; |
2146 | switch (r_type) | |
2147 | { | |
2148 | case elfcpp::R_SPARC_NONE: | |
2149 | case elfcpp::R_SPARC_REGISTER: | |
2150 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2151 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2152 | break; | |
2153 | ||
2154 | case elfcpp::R_SPARC_PLT64: | |
2155 | case elfcpp::R_SPARC_PLT32: | |
2156 | case elfcpp::R_SPARC_HIPLT22: | |
2157 | case elfcpp::R_SPARC_LOPLT10: | |
2158 | case elfcpp::R_SPARC_PCPLT32: | |
2159 | case elfcpp::R_SPARC_PCPLT22: | |
2160 | case elfcpp::R_SPARC_PCPLT10: | |
2161 | case elfcpp::R_SPARC_WPLT30: | |
2162 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2163 | // Otherwise we need a PLT entry. | |
2164 | if (gsym->final_value_is_known()) | |
2165 | break; | |
2166 | // If building a shared library, we can also skip the PLT entry | |
2167 | // if the symbol is defined in the output file and is protected | |
2168 | // or hidden. | |
2169 | if (gsym->is_defined() | |
2170 | && !gsym->is_from_dynobj() | |
2171 | && !gsym->is_preemptible()) | |
2172 | break; | |
2173 | target->make_plt_entry(symtab, layout, gsym); | |
2174 | break; | |
2175 | ||
2176 | case elfcpp::R_SPARC_DISP8: | |
2177 | case elfcpp::R_SPARC_DISP16: | |
2178 | case elfcpp::R_SPARC_DISP32: | |
2179 | case elfcpp::R_SPARC_DISP64: | |
2180 | case elfcpp::R_SPARC_PC_HH22: | |
2181 | case elfcpp::R_SPARC_PC_HM10: | |
2182 | case elfcpp::R_SPARC_PC_LM22: | |
2183 | case elfcpp::R_SPARC_PC10: | |
2184 | case elfcpp::R_SPARC_PC22: | |
2185 | case elfcpp::R_SPARC_WDISP30: | |
2186 | case elfcpp::R_SPARC_WDISP22: | |
2187 | case elfcpp::R_SPARC_WDISP19: | |
2188 | case elfcpp::R_SPARC_WDISP16: | |
2189 | { | |
2190 | if (gsym->needs_plt_entry()) | |
2191 | target->make_plt_entry(symtab, layout, gsym); | |
2192 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2193 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2194 | { |
966d4097 | 2195 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2196 | { |
12c0daef | 2197 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2198 | data_shndx, output_section, gsym, |
2199 | reloc); | |
2200 | } | |
2201 | else | |
2202 | { | |
2203 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2204 | check_non_pic(object, r_type); |
f5314dd5 DM |
2205 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2206 | data_shndx, reloc.get_r_offset(), | |
2207 | reloc.get_r_addend()); | |
2208 | } | |
2209 | } | |
2210 | } | |
2211 | break; | |
2212 | ||
2213 | case elfcpp::R_SPARC_UA64: | |
2214 | case elfcpp::R_SPARC_64: | |
2215 | case elfcpp::R_SPARC_HIX22: | |
2216 | case elfcpp::R_SPARC_LOX10: | |
2217 | case elfcpp::R_SPARC_H44: | |
2218 | case elfcpp::R_SPARC_M44: | |
2219 | case elfcpp::R_SPARC_L44: | |
2220 | case elfcpp::R_SPARC_HH22: | |
2221 | case elfcpp::R_SPARC_HM10: | |
2222 | case elfcpp::R_SPARC_LM22: | |
2223 | case elfcpp::R_SPARC_HI22: | |
2224 | case elfcpp::R_SPARC_LO10: | |
2225 | case elfcpp::R_SPARC_OLO10: | |
2226 | case elfcpp::R_SPARC_UA32: | |
2227 | case elfcpp::R_SPARC_32: | |
2228 | case elfcpp::R_SPARC_UA16: | |
2229 | case elfcpp::R_SPARC_16: | |
2230 | case elfcpp::R_SPARC_11: | |
2231 | case elfcpp::R_SPARC_10: | |
2232 | case elfcpp::R_SPARC_8: | |
2233 | case elfcpp::R_SPARC_7: | |
2234 | case elfcpp::R_SPARC_6: | |
2235 | case elfcpp::R_SPARC_5: | |
2236 | { | |
2237 | // Make a PLT entry if necessary. | |
2238 | if (gsym->needs_plt_entry()) | |
2239 | { | |
2240 | target->make_plt_entry(symtab, layout, gsym); | |
2241 | // Since this is not a PC-relative relocation, we may be | |
2242 | // taking the address of a function. In that case we need to | |
2243 | // set the entry in the dynamic symbol table to the address of | |
2244 | // the PLT entry. | |
2245 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2246 | gsym->set_needs_dynsym_value(); | |
2247 | } | |
2248 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2249 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2250 | { |
0da6fa6c DM |
2251 | unsigned int r_off = reloc.get_r_offset(); |
2252 | ||
2253 | // The assembler can sometimes emit unaligned relocations | |
2254 | // for dwarf2 cfi directives. | |
2255 | switch (r_type) | |
2256 | { | |
2257 | case elfcpp::R_SPARC_16: | |
2258 | if (r_off & 0x1) | |
2259 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2260 | break; | |
2261 | case elfcpp::R_SPARC_32: | |
2262 | if (r_off & 0x3) | |
2263 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2264 | break; | |
2265 | case elfcpp::R_SPARC_64: | |
2266 | if (r_off & 0x7) | |
2267 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2268 | break; | |
2269 | case elfcpp::R_SPARC_UA16: | |
2270 | if (!(r_off & 0x1)) | |
2271 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2272 | break; | |
2273 | case elfcpp::R_SPARC_UA32: | |
2274 | if (!(r_off & 0x3)) | |
2275 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2276 | break; | |
2277 | case elfcpp::R_SPARC_UA64: | |
2278 | if (!(r_off & 0x7)) | |
2279 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2280 | break; | |
2281 | } | |
2282 | ||
966d4097 | 2283 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2284 | { |
12c0daef | 2285 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2286 | data_shndx, output_section, gsym, reloc); |
2287 | } | |
2288 | else if ((r_type == elfcpp::R_SPARC_32 | |
2289 | || r_type == elfcpp::R_SPARC_64) | |
2290 | && gsym->can_use_relative_reloc(false)) | |
2291 | { | |
2292 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2293 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2294 | output_section, object, | |
2295 | data_shndx, reloc.get_r_offset(), | |
2296 | reloc.get_r_addend()); | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2301 | ||
32b769e1 | 2302 | check_non_pic(object, r_type); |
0da6fa6c DM |
2303 | if (gsym->is_from_dynobj() |
2304 | || gsym->is_undefined() | |
2305 | || gsym->is_preemptible()) | |
2306 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2307 | object, data_shndx, | |
2308 | reloc.get_r_offset(), | |
2309 | reloc.get_r_addend()); | |
2310 | else | |
2311 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2312 | output_section, | |
2313 | object, data_shndx, | |
2314 | reloc.get_r_offset(), | |
2315 | reloc.get_r_addend()); | |
f5314dd5 DM |
2316 | } |
2317 | } | |
2318 | } | |
2319 | break; | |
2320 | ||
024c4466 DM |
2321 | case elfcpp::R_SPARC_GOTDATA_OP: |
2322 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2323 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2324 | case elfcpp::R_SPARC_GOT10: |
2325 | case elfcpp::R_SPARC_GOT13: | |
2326 | case elfcpp::R_SPARC_GOT22: | |
2327 | { | |
2328 | // The symbol requires a GOT entry. | |
2329 | Output_data_got<size, big_endian>* got; | |
2330 | ||
2331 | got = target->got_section(symtab, layout); | |
2332 | if (gsym->final_value_is_known()) | |
2333 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2334 | else | |
2335 | { | |
2336 | // If this symbol is not fully resolved, we need to add a | |
2337 | // dynamic relocation for it. | |
2338 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2339 | if (gsym->is_from_dynobj() | |
2340 | || gsym->is_undefined() | |
2341 | || gsym->is_preemptible()) | |
2342 | got->add_global_with_rela(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2343 | elfcpp::R_SPARC_GLOB_DAT); | |
2344 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) | |
2345 | { | |
2346 | unsigned int off = got->add_constant(0); | |
2347 | ||
2348 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
2349 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2350 | got, off, 0); | |
2351 | } | |
2352 | } | |
2353 | } | |
2354 | break; | |
2355 | ||
2356 | // These are initial tls relocs, which are expected when | |
2357 | // linking. | |
2358 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2359 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2360 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2361 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2362 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2363 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2364 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2365 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2366 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2367 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2368 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2369 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2370 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2371 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2372 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2373 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2374 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2375 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2376 | { |
2377 | const bool is_final = gsym->final_value_is_known(); | |
2378 | const tls::Tls_optimization optimized_type | |
2379 | = optimize_tls_reloc(is_final, r_type); | |
2380 | switch (r_type) | |
2381 | { | |
2382 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2383 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2384 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2385 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2386 | if (optimized_type == tls::TLSOPT_NONE) | |
2387 | { | |
2388 | // Create a pair of GOT entries for the module index and | |
2389 | // dtv-relative offset. | |
2390 | Output_data_got<size, big_endian>* got | |
2391 | = target->got_section(symtab, layout); | |
2392 | got->add_global_pair_with_rela(gsym, GOT_TYPE_TLS_PAIR, | |
2393 | target->rela_dyn_section(layout), | |
2394 | (size == 64 ? | |
2395 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
2396 | elfcpp::R_SPARC_TLS_DTPMOD32), | |
2397 | (size == 64 ? | |
2398 | elfcpp::R_SPARC_TLS_DTPOFF64 : | |
2399 | elfcpp::R_SPARC_TLS_DTPOFF32)); | |
2400 | ||
2401 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2402 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2403 | generate_tls_call(symtab, layout, target); | |
2404 | } | |
2405 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2406 | { | |
2407 | // Create a GOT entry for the tp-relative offset. | |
2408 | Output_data_got<size, big_endian>* got | |
2409 | = target->got_section(symtab, layout); | |
2410 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2411 | target->rela_dyn_section(layout), | |
2412 | (size == 64 ? | |
2413 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2414 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2415 | } | |
2416 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2417 | unsupported_reloc_global(object, r_type, gsym); | |
2418 | break; | |
2419 | ||
2420 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2421 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2422 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2423 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2424 | if (optimized_type == tls::TLSOPT_NONE) | |
2425 | { | |
2426 | // Create a GOT entry for the module index. | |
2427 | target->got_mod_index_entry(symtab, layout, object); | |
2428 | ||
2429 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2430 | generate_tls_call(symtab, layout, target); | |
2431 | } | |
2432 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2433 | unsupported_reloc_global(object, r_type, gsym); | |
2434 | break; | |
2435 | ||
2436 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2437 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2438 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2439 | break; | |
2440 | ||
2441 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2442 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2443 | layout->set_has_static_tls(); | |
2444 | if (parameters->options().shared()) | |
2445 | { | |
2446 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2447 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2448 | output_section, object, | |
2449 | data_shndx, reloc.get_r_offset(), | |
2450 | 0); | |
f5314dd5 DM |
2451 | } |
2452 | break; | |
2453 | ||
2454 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2455 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2456 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2457 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2458 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2459 | layout->set_has_static_tls(); |
2460 | if (optimized_type == tls::TLSOPT_NONE) | |
2461 | { | |
2462 | // Create a GOT entry for the tp-relative offset. | |
2463 | Output_data_got<size, big_endian>* got | |
2464 | = target->got_section(symtab, layout); | |
2465 | got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET, | |
2466 | target->rela_dyn_section(layout), | |
2467 | (size == 64 ? | |
2468 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2469 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
2470 | } | |
2471 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2472 | unsupported_reloc_global(object, r_type, gsym); | |
2473 | break; | |
2474 | } | |
2475 | } | |
2476 | break; | |
2477 | ||
2478 | // These are relocations which should only be seen by the | |
2479 | // dynamic linker, and should never be seen here. | |
2480 | case elfcpp::R_SPARC_COPY: | |
2481 | case elfcpp::R_SPARC_GLOB_DAT: | |
2482 | case elfcpp::R_SPARC_JMP_SLOT: | |
2483 | case elfcpp::R_SPARC_RELATIVE: | |
2484 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2485 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2486 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2487 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2488 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2489 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2490 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2491 | object->name().c_str(), r_type); | |
2492 | break; | |
2493 | ||
2494 | default: | |
2495 | unsupported_reloc_global(object, r_type, gsym); | |
2496 | break; | |
2497 | } | |
2498 | } | |
2499 | ||
6d03d481 ST |
2500 | // Process relocations for gc. |
2501 | ||
2502 | template<int size, bool big_endian> | |
2503 | void | |
2504 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
2505 | Symbol_table* symtab, |
2506 | Layout* layout, | |
6fa2a40b | 2507 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
2508 | unsigned int data_shndx, |
2509 | unsigned int, | |
2510 | const unsigned char* prelocs, | |
2511 | size_t reloc_count, | |
2512 | Output_section* output_section, | |
2513 | bool needs_special_offset_handling, | |
2514 | size_t local_symbol_count, | |
2515 | const unsigned char* plocal_symbols) | |
2516 | { | |
2517 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2518 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 2519 | |
41cbeecc | 2520 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 2521 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
2522 | symtab, |
2523 | layout, | |
2524 | this, | |
2525 | object, | |
2526 | data_shndx, | |
2527 | prelocs, | |
2528 | reloc_count, | |
2529 | output_section, | |
2530 | needs_special_offset_handling, | |
2531 | local_symbol_count, | |
2532 | plocal_symbols); | |
2533 | } | |
2534 | ||
f5314dd5 DM |
2535 | // Scan relocations for a section. |
2536 | ||
2537 | template<int size, bool big_endian> | |
2538 | void | |
2539 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
2540 | Symbol_table* symtab, |
2541 | Layout* layout, | |
6fa2a40b | 2542 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2543 | unsigned int data_shndx, |
2544 | unsigned int sh_type, | |
2545 | const unsigned char* prelocs, | |
2546 | size_t reloc_count, | |
2547 | Output_section* output_section, | |
2548 | bool needs_special_offset_handling, | |
2549 | size_t local_symbol_count, | |
2550 | const unsigned char* plocal_symbols) | |
2551 | { | |
2552 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2553 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
2554 | |
2555 | if (sh_type == elfcpp::SHT_REL) | |
2556 | { | |
2557 | gold_error(_("%s: unsupported REL reloc section"), | |
2558 | object->name().c_str()); | |
2559 | return; | |
2560 | } | |
2561 | ||
2ea97941 | 2562 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
2563 | symtab, |
2564 | layout, | |
2565 | this, | |
2566 | object, | |
2567 | data_shndx, | |
2568 | prelocs, | |
2569 | reloc_count, | |
2570 | output_section, | |
2571 | needs_special_offset_handling, | |
2572 | local_symbol_count, | |
2573 | plocal_symbols); | |
2574 | } | |
2575 | ||
2576 | // Finalize the sections. | |
2577 | ||
2578 | template<int size, bool big_endian> | |
2579 | void | |
d5b40221 DK |
2580 | Target_sparc<size, big_endian>::do_finalize_sections( |
2581 | Layout* layout, | |
f59f41f3 DK |
2582 | const Input_objects*, |
2583 | Symbol_table*) | |
f5314dd5 DM |
2584 | { |
2585 | // Fill in some more dynamic tags. | |
ea715a34 ILT |
2586 | const Reloc_section* rel_plt = (this->plt_ == NULL |
2587 | ? NULL | |
2588 | : this->plt_->rel_plt()); | |
2589 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 2590 | this->rela_dyn_, true, true); |
f5314dd5 DM |
2591 | |
2592 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
2593 | // relocs. | |
12c0daef ILT |
2594 | if (this->copy_relocs_.any_saved_relocs()) |
2595 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
f5314dd5 DM |
2596 | } |
2597 | ||
2598 | // Perform a relocation. | |
2599 | ||
2600 | template<int size, bool big_endian> | |
2601 | inline bool | |
2602 | Target_sparc<size, big_endian>::Relocate::relocate( | |
2603 | const Relocate_info<size, big_endian>* relinfo, | |
2604 | Target_sparc* target, | |
031cdbed | 2605 | Output_section*, |
f5314dd5 DM |
2606 | size_t relnum, |
2607 | const elfcpp::Rela<size, big_endian>& rela, | |
2608 | unsigned int r_type, | |
2609 | const Sized_symbol<size>* gsym, | |
2610 | const Symbol_value<size>* psymval, | |
2611 | unsigned char* view, | |
2612 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2613 | section_size_type view_size) | |
2614 | { | |
2615 | r_type &= 0xff; | |
2616 | ||
2617 | if (this->ignore_gd_add_) | |
2618 | { | |
2619 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
2620 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2621 | _("missing expected TLS relocation")); | |
2622 | else | |
2623 | { | |
2624 | this->ignore_gd_add_ = false; | |
2625 | return false; | |
2626 | } | |
2627 | } | |
abd242a9 DM |
2628 | if (this->reloc_adjust_addr_ == view) |
2629 | view -= 4; | |
f5314dd5 DM |
2630 | |
2631 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
2632 | ||
2633 | // Pick the value to use for symbols defined in shared objects. | |
2634 | Symbol_value<size> symval; | |
2635 | if (gsym != NULL | |
95a2c8d6 | 2636 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2637 | { |
2ea97941 | 2638 | elfcpp::Elf_Xword value; |
f5314dd5 | 2639 | |
2ea97941 | 2640 | value = target->plt_section()->address() + gsym->plt_offset(); |
f5314dd5 | 2641 | |
2ea97941 | 2642 | symval.set_output_value(value); |
f5314dd5 DM |
2643 | |
2644 | psymval = &symval; | |
2645 | } | |
2646 | ||
6fa2a40b | 2647 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
2648 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); |
2649 | ||
2650 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
2651 | // pointer points to the beginning, not the end, of the table. | |
2652 | // So we just use the plain offset. | |
f5314dd5 DM |
2653 | unsigned int got_offset = 0; |
2654 | switch (r_type) | |
2655 | { | |
024c4466 DM |
2656 | case elfcpp::R_SPARC_GOTDATA_OP: |
2657 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2658 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2659 | case elfcpp::R_SPARC_GOT10: |
2660 | case elfcpp::R_SPARC_GOT13: | |
2661 | case elfcpp::R_SPARC_GOT22: | |
2662 | if (gsym != NULL) | |
2663 | { | |
2664 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
2665 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
2666 | } | |
2667 | else | |
2668 | { | |
2669 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
2670 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
2671 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
2672 | } | |
f5314dd5 DM |
2673 | break; |
2674 | ||
2675 | default: | |
2676 | break; | |
2677 | } | |
2678 | ||
2679 | switch (r_type) | |
2680 | { | |
2681 | case elfcpp::R_SPARC_NONE: | |
2682 | case elfcpp::R_SPARC_REGISTER: | |
2683 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2684 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2685 | break; | |
2686 | ||
2687 | case elfcpp::R_SPARC_8: | |
2688 | Relocate_functions<size, big_endian>::rela8(view, object, | |
2689 | psymval, addend); | |
2690 | break; | |
2691 | ||
2692 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
2693 | if (rela.get_r_offset() & 0x1) |
2694 | { | |
2695 | // The assembler can sometimes emit unaligned relocations | |
2696 | // for dwarf2 cfi directives. | |
2697 | Reloc::ua16(view, object, psymval, addend); | |
2698 | } | |
2699 | else | |
2700 | Relocate_functions<size, big_endian>::rela16(view, object, | |
2701 | psymval, addend); | |
f5314dd5 DM |
2702 | break; |
2703 | ||
2704 | case elfcpp::R_SPARC_32: | |
2705 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
2706 | { |
2707 | if (rela.get_r_offset() & 0x3) | |
2708 | { | |
2709 | // The assembler can sometimes emit unaligned relocations | |
2710 | // for dwarf2 cfi directives. | |
2711 | Reloc::ua32(view, object, psymval, addend); | |
2712 | } | |
2713 | else | |
2714 | Relocate_functions<size, big_endian>::rela32(view, object, | |
2715 | psymval, addend); | |
2716 | } | |
f5314dd5 DM |
2717 | break; |
2718 | ||
2719 | case elfcpp::R_SPARC_DISP8: | |
2720 | Reloc::disp8(view, object, psymval, addend, address); | |
2721 | break; | |
2722 | ||
2723 | case elfcpp::R_SPARC_DISP16: | |
2724 | Reloc::disp16(view, object, psymval, addend, address); | |
2725 | break; | |
2726 | ||
2727 | case elfcpp::R_SPARC_DISP32: | |
2728 | Reloc::disp32(view, object, psymval, addend, address); | |
2729 | break; | |
2730 | ||
2731 | case elfcpp::R_SPARC_DISP64: | |
2732 | Reloc::disp64(view, object, psymval, addend, address); | |
2733 | break; | |
2734 | ||
2735 | case elfcpp::R_SPARC_WDISP30: | |
2736 | case elfcpp::R_SPARC_WPLT30: | |
2737 | Reloc::wdisp30(view, object, psymval, addend, address); | |
2738 | break; | |
2739 | ||
2740 | case elfcpp::R_SPARC_WDISP22: | |
2741 | Reloc::wdisp22(view, object, psymval, addend, address); | |
2742 | break; | |
2743 | ||
2744 | case elfcpp::R_SPARC_WDISP19: | |
2745 | Reloc::wdisp19(view, object, psymval, addend, address); | |
2746 | break; | |
2747 | ||
2748 | case elfcpp::R_SPARC_WDISP16: | |
2749 | Reloc::wdisp16(view, object, psymval, addend, address); | |
2750 | break; | |
2751 | ||
2752 | case elfcpp::R_SPARC_HI22: | |
2753 | Reloc::hi22(view, object, psymval, addend); | |
2754 | break; | |
2755 | ||
2756 | case elfcpp::R_SPARC_22: | |
2757 | Reloc::rela32_22(view, object, psymval, addend); | |
2758 | break; | |
2759 | ||
2760 | case elfcpp::R_SPARC_13: | |
2761 | Reloc::rela32_13(view, object, psymval, addend); | |
2762 | break; | |
2763 | ||
2764 | case elfcpp::R_SPARC_LO10: | |
2765 | Reloc::lo10(view, object, psymval, addend); | |
2766 | break; | |
2767 | ||
2768 | case elfcpp::R_SPARC_GOT10: | |
2769 | Reloc::lo10(view, got_offset, addend); | |
2770 | break; | |
2771 | ||
024c4466 DM |
2772 | case elfcpp::R_SPARC_GOTDATA_OP: |
2773 | break; | |
2774 | ||
2775 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2776 | case elfcpp::R_SPARC_GOT13: |
2777 | Reloc::rela32_13(view, got_offset, addend); | |
2778 | break; | |
2779 | ||
024c4466 | 2780 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
f5314dd5 DM |
2781 | case elfcpp::R_SPARC_GOT22: |
2782 | Reloc::hi22(view, got_offset, addend); | |
2783 | break; | |
2784 | ||
2785 | case elfcpp::R_SPARC_PC10: | |
2786 | Reloc::pc10(view, object, psymval, addend, address); | |
2787 | break; | |
2788 | ||
2789 | case elfcpp::R_SPARC_PC22: | |
2790 | Reloc::pc22(view, object, psymval, addend, address); | |
2791 | break; | |
2792 | ||
2793 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2794 | case elfcpp::R_SPARC_UA32: | |
2795 | Reloc::ua32(view, object, psymval, addend); | |
2796 | break; | |
2797 | ||
2798 | case elfcpp::R_SPARC_PLT64: | |
2799 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2800 | psymval, addend); | |
2801 | break; | |
2802 | ||
2803 | case elfcpp::R_SPARC_PLT32: | |
2804 | Relocate_functions<size, big_endian>::rela32(view, object, | |
2805 | psymval, addend); | |
2806 | break; | |
2807 | ||
2808 | case elfcpp::R_SPARC_HIPLT22: | |
2809 | Reloc::hi22(view, object, psymval, addend); | |
2810 | break; | |
2811 | ||
2812 | case elfcpp::R_SPARC_LOPLT10: | |
2813 | Reloc::lo10(view, object, psymval, addend); | |
2814 | break; | |
2815 | ||
2816 | case elfcpp::R_SPARC_PCPLT32: | |
2817 | Reloc::disp32(view, object, psymval, addend, address); | |
2818 | break; | |
2819 | ||
2820 | case elfcpp::R_SPARC_PCPLT22: | |
2821 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2822 | break; | |
2823 | ||
2824 | case elfcpp::R_SPARC_PCPLT10: | |
2825 | Reloc::lo10(view, object, psymval, addend, address); | |
2826 | break; | |
2827 | ||
2828 | case elfcpp::R_SPARC_64: | |
2829 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
2830 | { |
2831 | if (rela.get_r_offset() & 0x7) | |
2832 | { | |
2833 | // The assembler can sometimes emit unaligned relocations | |
2834 | // for dwarf2 cfi directives. | |
2835 | Reloc::ua64(view, object, psymval, addend); | |
2836 | } | |
2837 | else | |
2838 | Relocate_functions<size, big_endian>::rela64(view, object, | |
2839 | psymval, addend); | |
2840 | } | |
f5314dd5 DM |
2841 | break; |
2842 | ||
2843 | case elfcpp::R_SPARC_OLO10: | |
2844 | { | |
2845 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
2846 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
2847 | Reloc::olo10(view, object, psymval, addend, addend2); | |
2848 | } | |
2849 | break; | |
2850 | ||
2851 | case elfcpp::R_SPARC_HH22: | |
2852 | Reloc::hh22(view, object, psymval, addend); | |
2853 | break; | |
2854 | ||
2855 | case elfcpp::R_SPARC_PC_HH22: | |
2856 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
2857 | break; | |
2858 | ||
2859 | case elfcpp::R_SPARC_HM10: | |
2860 | Reloc::hm10(view, object, psymval, addend); | |
2861 | break; | |
2862 | ||
2863 | case elfcpp::R_SPARC_PC_HM10: | |
2864 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
2865 | break; | |
2866 | ||
2867 | case elfcpp::R_SPARC_LM22: | |
2868 | Reloc::hi22(view, object, psymval, addend); | |
2869 | break; | |
2870 | ||
2871 | case elfcpp::R_SPARC_PC_LM22: | |
2872 | Reloc::pcplt22(view, object, psymval, addend, address); | |
2873 | break; | |
2874 | ||
2875 | case elfcpp::R_SPARC_11: | |
2876 | Reloc::rela32_11(view, object, psymval, addend); | |
2877 | break; | |
2878 | ||
2879 | case elfcpp::R_SPARC_10: | |
2880 | Reloc::rela32_10(view, object, psymval, addend); | |
2881 | break; | |
2882 | ||
2883 | case elfcpp::R_SPARC_7: | |
2884 | Reloc::rela32_7(view, object, psymval, addend); | |
2885 | break; | |
2886 | ||
2887 | case elfcpp::R_SPARC_6: | |
2888 | Reloc::rela32_6(view, object, psymval, addend); | |
2889 | break; | |
2890 | ||
2891 | case elfcpp::R_SPARC_5: | |
2892 | Reloc::rela32_5(view, object, psymval, addend); | |
2893 | break; | |
2894 | ||
2895 | case elfcpp::R_SPARC_HIX22: | |
2896 | Reloc::hix22(view, object, psymval, addend); | |
2897 | break; | |
2898 | ||
2899 | case elfcpp::R_SPARC_LOX10: | |
2900 | Reloc::lox10(view, object, psymval, addend); | |
2901 | break; | |
2902 | ||
2903 | case elfcpp::R_SPARC_H44: | |
2904 | Reloc::h44(view, object, psymval, addend); | |
2905 | break; | |
2906 | ||
2907 | case elfcpp::R_SPARC_M44: | |
2908 | Reloc::m44(view, object, psymval, addend); | |
2909 | break; | |
2910 | ||
2911 | case elfcpp::R_SPARC_L44: | |
2912 | Reloc::l44(view, object, psymval, addend); | |
2913 | break; | |
2914 | ||
2915 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2916 | case elfcpp::R_SPARC_UA64: | |
2917 | Reloc::ua64(view, object, psymval, addend); | |
2918 | break; | |
2919 | ||
2920 | case elfcpp::R_SPARC_UA16: | |
2921 | Reloc::ua16(view, object, psymval, addend); | |
2922 | break; | |
2923 | ||
2924 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2925 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2926 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2927 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2928 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
2929 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2930 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2931 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2932 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
2933 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2934 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2935 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2936 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2937 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2938 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2939 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2940 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
2941 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2942 | this->relocate_tls(relinfo, target, relnum, rela, | |
2943 | r_type, gsym, psymval, view, | |
2944 | address, view_size); | |
2945 | break; | |
2946 | ||
2947 | case elfcpp::R_SPARC_COPY: | |
2948 | case elfcpp::R_SPARC_GLOB_DAT: | |
2949 | case elfcpp::R_SPARC_JMP_SLOT: | |
2950 | case elfcpp::R_SPARC_RELATIVE: | |
2951 | // These are outstanding tls relocs, which are unexpected when | |
2952 | // linking. | |
2953 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
2954 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2955 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2956 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2957 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2958 | _("unexpected reloc %u in object file"), | |
2959 | r_type); | |
2960 | break; | |
2961 | ||
2962 | default: | |
2963 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
2964 | _("unsupported reloc %u"), | |
2965 | r_type); | |
2966 | break; | |
2967 | } | |
2968 | ||
2969 | return true; | |
2970 | } | |
2971 | ||
2972 | // Perform a TLS relocation. | |
2973 | ||
2974 | template<int size, bool big_endian> | |
2975 | inline void | |
2976 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
2977 | const Relocate_info<size, big_endian>* relinfo, | |
2978 | Target_sparc<size, big_endian>* target, | |
2979 | size_t relnum, | |
2980 | const elfcpp::Rela<size, big_endian>& rela, | |
2981 | unsigned int r_type, | |
2982 | const Sized_symbol<size>* gsym, | |
2983 | const Symbol_value<size>* psymval, | |
2984 | unsigned char* view, | |
2985 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
2986 | section_size_type) | |
2987 | { | |
2988 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
2989 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
6fa2a40b | 2990 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
2991 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; |
2992 | ||
2993 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 2994 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
2995 | |
2996 | const bool is_final = | |
2997 | (gsym == NULL | |
2998 | ? !parameters->options().output_is_position_independent() | |
2999 | : gsym->final_value_is_known()); | |
3000 | const tls::Tls_optimization optimized_type | |
3001 | = optimize_tls_reloc(is_final, r_type); | |
3002 | ||
3003 | switch (r_type) | |
3004 | { | |
3005 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3006 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3007 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3008 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3009 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3010 | { | |
3011 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3012 | Insntype val; | |
3013 | ||
2ea97941 | 3014 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3015 | |
3016 | switch (r_type) | |
3017 | { | |
3018 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3019 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 3020 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3021 | break; |
3022 | ||
3023 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3024 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 3025 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3026 | break; |
3027 | ||
3028 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3029 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
3030 | val = elfcpp::Swap<32, true>::readval(wv); | |
3031 | val = (val & ~0x7c000) | 0x1c000; | |
3032 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3033 | break; | |
3034 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3035 | // call __tls_get_addr --> nop | |
3036 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3037 | break; | |
3038 | } | |
3039 | break; | |
3040 | } | |
3041 | else | |
3042 | { | |
3043 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
3044 | ? GOT_TYPE_TLS_OFFSET | |
3045 | : GOT_TYPE_TLS_PAIR); | |
3046 | if (gsym != NULL) | |
3047 | { | |
3048 | gold_assert(gsym->has_got_offset(got_type)); | |
2ea97941 | 3049 | value = gsym->got_offset(got_type); |
f5314dd5 DM |
3050 | } |
3051 | else | |
3052 | { | |
3053 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3054 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
2ea97941 | 3055 | value = object->local_got_offset(r_sym, got_type); |
f5314dd5 DM |
3056 | } |
3057 | if (optimized_type == tls::TLSOPT_TO_IE) | |
3058 | { | |
3059 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3060 | Insntype val; | |
3061 | ||
3062 | switch (r_type) | |
3063 | { | |
3064 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3065 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 3066 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3067 | break; |
3068 | ||
3069 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3070 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 3071 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3072 | break; |
3073 | ||
3074 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3075 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
3076 | val = elfcpp::Swap<32, true>::readval(wv); | |
3077 | ||
3078 | if (size == 64) | |
3079 | val |= 0xc0580000; | |
3080 | else | |
3081 | val |= 0xc0000000; | |
3082 | ||
3083 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3084 | break; | |
3085 | ||
3086 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3087 | // The compiler can put the TLS_GD_ADD instruction | |
3088 | // into the delay slot of the call. If so, we need | |
3089 | // to transpose the two instructions so that the | |
9b547ce6 | 3090 | // new sequence works properly. |
f5314dd5 DM |
3091 | // |
3092 | // The test we use is if the instruction in the | |
3093 | // delay slot is an add with destination register | |
3094 | // equal to %o0 | |
3095 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
3096 | if ((val & 0x81f80000) == 0x80000000 | |
3097 | && ((val >> 25) & 0x1f) == 0x8) | |
3098 | { | |
3099 | if (size == 64) | |
3100 | val |= 0xc0580000; | |
3101 | else | |
3102 | val |= 0xc0000000; | |
3103 | ||
3104 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3105 | ||
3106 | wv += 1; | |
3107 | this->ignore_gd_add_ = true; | |
3108 | } | |
abd242a9 DM |
3109 | else |
3110 | { | |
3111 | // Even if the delay slot isn't the TLS_GD_ADD | |
3112 | // instruction, we still have to handle the case | |
3113 | // where it sets up %o0 in some other way. | |
3114 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3115 | wv += 1; | |
3116 | this->reloc_adjust_addr_ = view + 4; | |
3117 | } | |
f5314dd5 DM |
3118 | // call __tls_get_addr --> add %g7, %o0, %o0 |
3119 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3120 | break; | |
3121 | } | |
3122 | break; | |
3123 | } | |
3124 | else if (optimized_type == tls::TLSOPT_NONE) | |
3125 | { | |
3126 | switch (r_type) | |
3127 | { | |
3128 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3129 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3130 | break; |
3131 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3132 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3133 | break; |
3134 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3135 | break; | |
3136 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3137 | { | |
3138 | Symbol_value<size> symval; | |
2ea97941 | 3139 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3140 | Symbol* tsym; |
3141 | ||
3142 | tsym = target->tls_get_addr_sym_; | |
3143 | gold_assert(tsym); | |
2ea97941 ILT |
3144 | value = (target->plt_section()->address() + |
3145 | tsym->plt_offset()); | |
3146 | symval.set_output_value(value); | |
f5314dd5 DM |
3147 | Reloc::wdisp30(view, object, &symval, addend, address); |
3148 | } | |
3149 | break; | |
3150 | } | |
3151 | break; | |
3152 | } | |
3153 | } | |
3154 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3155 | _("unsupported reloc %u"), | |
3156 | r_type); | |
3157 | break; | |
3158 | ||
3159 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3160 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3161 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3162 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3163 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3164 | { | |
3165 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3166 | ||
3167 | switch (r_type) | |
3168 | { | |
3169 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3170 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3171 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3172 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3173 | break; | |
3174 | ||
3175 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3176 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3177 | break; | |
3178 | } | |
3179 | break; | |
3180 | } | |
3181 | else if (optimized_type == tls::TLSOPT_NONE) | |
3182 | { | |
3183 | // Relocate the field with the offset of the GOT entry for | |
3184 | // the module index. | |
3185 | unsigned int got_offset; | |
3186 | ||
3187 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3188 | switch (r_type) | |
3189 | { | |
3190 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3191 | Reloc::hi22(view, got_offset, addend); | |
3192 | break; | |
3193 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3194 | Reloc::lo10(view, got_offset, addend); | |
3195 | break; | |
3196 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3197 | break; | |
3198 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3199 | { | |
3200 | Symbol_value<size> symval; | |
2ea97941 | 3201 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3202 | Symbol* tsym; |
3203 | ||
3204 | tsym = target->tls_get_addr_sym_; | |
3205 | gold_assert(tsym); | |
2ea97941 ILT |
3206 | value = (target->plt_section()->address() + |
3207 | tsym->plt_offset()); | |
3208 | symval.set_output_value(value); | |
f5314dd5 DM |
3209 | Reloc::wdisp30(view, object, &symval, addend, address); |
3210 | } | |
3211 | break; | |
3212 | } | |
3213 | break; | |
3214 | } | |
3215 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3216 | _("unsupported reloc %u"), | |
3217 | r_type); | |
3218 | break; | |
3219 | ||
3220 | // These relocs can appear in debugging sections, in which case | |
3221 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3222 | // field tells us this. | |
3223 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3224 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3225 | { | |
2ea97941 ILT |
3226 | value -= tls_segment->memsz(); |
3227 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3228 | } |
3229 | else | |
2ea97941 | 3230 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3231 | break; |
3232 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3233 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3234 | { | |
2ea97941 ILT |
3235 | value -= tls_segment->memsz(); |
3236 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3237 | } |
3238 | else | |
2ea97941 | 3239 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3240 | break; |
3241 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3242 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3243 | { | |
3244 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3245 | Insntype val; | |
3246 | ||
3247 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3248 | val = elfcpp::Swap<32, true>::readval(wv); | |
3249 | val = (val & ~0x7c000) | 0x1c000; | |
3250 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3251 | } | |
3252 | break; | |
3253 | ||
3254 | // When optimizing IE --> LE, the only relocation that is handled | |
3255 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3256 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3257 | // rs2 and rd are the same. | |
3258 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3259 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3260 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3261 | { | |
3262 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3263 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3264 | Insntype rs2 = val & 0x1f; | |
3265 | Insntype rd = (val >> 25) & 0x1f; | |
3266 | ||
3267 | if (rs2 == rd) | |
3268 | val = sparc_nop; | |
3269 | else | |
3270 | val = sparc_mov | (val & 0x3e00001f); | |
3271 | ||
3272 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3273 | } | |
3274 | break; | |
3275 | ||
3276 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3277 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3278 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3279 | { | |
2ea97941 | 3280 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3281 | switch (r_type) |
3282 | { | |
3283 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3284 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3285 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3286 | break; |
3287 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3288 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3289 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3290 | break; |
3291 | } | |
3292 | break; | |
3293 | } | |
3294 | else if (optimized_type == tls::TLSOPT_NONE) | |
3295 | { | |
3296 | // Relocate the field with the offset of the GOT entry for | |
3297 | // the tp-relative offset of the symbol. | |
3298 | if (gsym != NULL) | |
3299 | { | |
3300 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3301 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3302 | } |
3303 | else | |
3304 | { | |
3305 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3306 | gold_assert(object->local_has_got_offset(r_sym, | |
3307 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3308 | value = object->local_got_offset(r_sym, |
3309 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3310 | } |
3311 | switch (r_type) | |
3312 | { | |
3313 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3314 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3315 | break; |
3316 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3317 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3318 | break; |
3319 | } | |
3320 | break; | |
3321 | } | |
3322 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3323 | _("unsupported reloc %u"), | |
3324 | r_type); | |
3325 | break; | |
3326 | ||
9efe6174 ILT |
3327 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3328 | // This seems to be mainly so that we can find the addition | |
3329 | // instruction if there is one. There doesn't seem to be any | |
3330 | // actual relocation to apply. | |
3331 | break; | |
3332 | ||
f5314dd5 DM |
3333 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3334 | // If we're creating a shared library, a dynamic relocation will | |
3335 | // have been created for this location, so do not apply it now. | |
3336 | if (!parameters->options().shared()) | |
3337 | { | |
2ea97941 ILT |
3338 | value -= tls_segment->memsz(); |
3339 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3340 | } |
3341 | break; | |
3342 | ||
3343 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3344 | // If we're creating a shared library, a dynamic relocation will | |
3345 | // have been created for this location, so do not apply it now. | |
3346 | if (!parameters->options().shared()) | |
3347 | { | |
2ea97941 ILT |
3348 | value -= tls_segment->memsz(); |
3349 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3350 | } |
3351 | break; | |
3352 | } | |
3353 | } | |
3354 | ||
3355 | // Relocate section data. | |
3356 | ||
3357 | template<int size, bool big_endian> | |
3358 | void | |
3359 | Target_sparc<size, big_endian>::relocate_section( | |
3360 | const Relocate_info<size, big_endian>* relinfo, | |
3361 | unsigned int sh_type, | |
3362 | const unsigned char* prelocs, | |
3363 | size_t reloc_count, | |
3364 | Output_section* output_section, | |
3365 | bool needs_special_offset_handling, | |
3366 | unsigned char* view, | |
3367 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
3368 | section_size_type view_size, |
3369 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
3370 | { |
3371 | typedef Target_sparc<size, big_endian> Sparc; | |
3372 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
3373 | ||
3374 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3375 | ||
3376 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
3377 | Sparc_relocate>( | |
3378 | relinfo, | |
3379 | this, | |
3380 | prelocs, | |
3381 | reloc_count, | |
3382 | output_section, | |
3383 | needs_special_offset_handling, | |
3384 | view, | |
3385 | address, | |
364c7fa5 ILT |
3386 | view_size, |
3387 | reloc_symbol_changes); | |
f5314dd5 DM |
3388 | } |
3389 | ||
3390 | // Return the size of a relocation while scanning during a relocatable | |
3391 | // link. | |
3392 | ||
3393 | template<int size, bool big_endian> | |
3394 | unsigned int | |
3395 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
3396 | unsigned int, | |
3397 | Relobj*) | |
3398 | { | |
3399 | // We are always SHT_RELA, so we should never get here. | |
3400 | gold_unreachable(); | |
3401 | return 0; | |
3402 | } | |
3403 | ||
3404 | // Scan the relocs during a relocatable link. | |
3405 | ||
3406 | template<int size, bool big_endian> | |
3407 | void | |
3408 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
3409 | Symbol_table* symtab, |
3410 | Layout* layout, | |
6fa2a40b | 3411 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
3412 | unsigned int data_shndx, |
3413 | unsigned int sh_type, | |
3414 | const unsigned char* prelocs, | |
3415 | size_t reloc_count, | |
3416 | Output_section* output_section, | |
3417 | bool needs_special_offset_handling, | |
3418 | size_t local_symbol_count, | |
3419 | const unsigned char* plocal_symbols, | |
3420 | Relocatable_relocs* rr) | |
3421 | { | |
3422 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3423 | ||
3424 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
3425 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
3426 | ||
3427 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
3428 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
3429 | symtab, |
3430 | layout, | |
3431 | object, | |
3432 | data_shndx, | |
3433 | prelocs, | |
3434 | reloc_count, | |
3435 | output_section, | |
3436 | needs_special_offset_handling, | |
3437 | local_symbol_count, | |
3438 | plocal_symbols, | |
3439 | rr); | |
3440 | } | |
3441 | ||
3442 | // Relocate a section during a relocatable link. | |
3443 | ||
3444 | template<int size, bool big_endian> | |
3445 | void | |
3446 | Target_sparc<size, big_endian>::relocate_for_relocatable( | |
3447 | const Relocate_info<size, big_endian>* relinfo, | |
3448 | unsigned int sh_type, | |
3449 | const unsigned char* prelocs, | |
3450 | size_t reloc_count, | |
3451 | Output_section* output_section, | |
3452 | off_t offset_in_output_section, | |
3453 | const Relocatable_relocs* rr, | |
3454 | unsigned char* view, | |
3455 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
3456 | section_size_type view_size, | |
3457 | unsigned char* reloc_view, | |
3458 | section_size_type reloc_view_size) | |
3459 | { | |
3460 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3461 | ||
3462 | gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>( | |
3463 | relinfo, | |
3464 | prelocs, | |
3465 | reloc_count, | |
3466 | output_section, | |
3467 | offset_in_output_section, | |
3468 | rr, | |
3469 | view, | |
3470 | view_address, | |
3471 | view_size, | |
3472 | reloc_view, | |
3473 | reloc_view_size); | |
3474 | } | |
3475 | ||
3476 | // Return the value to use for a dynamic which requires special | |
3477 | // treatment. This is how we support equality comparisons of function | |
3478 | // pointers across shared library boundaries, as described in the | |
3479 | // processor specific ABI supplement. | |
3480 | ||
3481 | template<int size, bool big_endian> | |
3482 | uint64_t | |
3483 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
3484 | { | |
3485 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
3486 | return this->plt_section()->address() + gsym->plt_offset(); | |
3487 | } | |
3488 | ||
3489 | // The selector for sparc object files. | |
3490 | ||
3491 | template<int size, bool big_endian> | |
3492 | class Target_selector_sparc : public Target_selector | |
3493 | { | |
3494 | public: | |
3495 | Target_selector_sparc() | |
3496 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
03ef7571 ILT |
3497 | (size == 64 ? "elf64-sparc" : "elf32-sparc"), |
3498 | (size == 64 ? "elf64_sparc" : "elf32_sparc")) | |
f5314dd5 DM |
3499 | { } |
3500 | ||
2ea97941 | 3501 | Target* do_recognize(int machine, int, int) |
f5314dd5 DM |
3502 | { |
3503 | switch (size) | |
3504 | { | |
3505 | case 64: | |
2ea97941 | 3506 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
3507 | return NULL; |
3508 | break; | |
3509 | ||
3510 | case 32: | |
2ea97941 ILT |
3511 | if (machine != elfcpp::EM_SPARC |
3512 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
3513 | return NULL; |
3514 | break; | |
3515 | ||
3516 | default: | |
3517 | return NULL; | |
3518 | } | |
3519 | ||
7f055c20 | 3520 | return this->instantiate_target(); |
f5314dd5 DM |
3521 | } |
3522 | ||
3523 | Target* do_instantiate_target() | |
7f055c20 | 3524 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
3525 | }; |
3526 | ||
3527 | Target_selector_sparc<32, true> target_selector_sparc32; | |
3528 | Target_selector_sparc<64, true> target_selector_sparc64; | |
3529 | ||
3530 | } // End anonymous namespace. |