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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
4b95cf5c | 3 | // Copyright (C) 2008-2014 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), | |
8c2bf391 | 61 | got_(NULL), plt_(NULL), rela_dyn_(NULL), rela_ifunc_(NULL), |
43819297 | 62 | copy_relocs_(elfcpp::R_SPARC_COPY), |
a4d85145 DM |
63 | got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL), |
64 | elf_machine_(sparc_info.machine_code), elf_flags_(0), | |
65 | elf_flags_set_(false) | |
f5314dd5 DM |
66 | { |
67 | } | |
68 | ||
2e702c99 | 69 | // Process the relocations to determine unreferenced sections for |
6d03d481 ST |
70 | // garbage collection. |
71 | void | |
ad0f2072 | 72 | gc_process_relocs(Symbol_table* symtab, |
2e702c99 RM |
73 | Layout* layout, |
74 | Sized_relobj_file<size, big_endian>* object, | |
75 | unsigned int data_shndx, | |
76 | unsigned int sh_type, | |
77 | const unsigned char* prelocs, | |
78 | size_t reloc_count, | |
79 | Output_section* output_section, | |
80 | bool needs_special_offset_handling, | |
81 | size_t local_symbol_count, | |
82 | const unsigned char* plocal_symbols); | |
6d03d481 | 83 | |
f5314dd5 DM |
84 | // Scan the relocations to look for symbol adjustments. |
85 | void | |
ad0f2072 | 86 | scan_relocs(Symbol_table* symtab, |
f5314dd5 | 87 | Layout* layout, |
6fa2a40b | 88 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
89 | unsigned int data_shndx, |
90 | unsigned int sh_type, | |
91 | const unsigned char* prelocs, | |
92 | size_t reloc_count, | |
93 | Output_section* output_section, | |
94 | bool needs_special_offset_handling, | |
95 | size_t local_symbol_count, | |
96 | const unsigned char* plocal_symbols); | |
97 | // Finalize the sections. | |
98 | void | |
f59f41f3 | 99 | do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); |
f5314dd5 DM |
100 | |
101 | // Return the value to use for a dynamic which requires special | |
102 | // treatment. | |
103 | uint64_t | |
104 | do_dynsym_value(const Symbol*) const; | |
105 | ||
106 | // Relocate a section. | |
107 | void | |
108 | relocate_section(const Relocate_info<size, big_endian>*, | |
109 | unsigned int sh_type, | |
110 | const unsigned char* prelocs, | |
111 | size_t reloc_count, | |
112 | Output_section* output_section, | |
113 | bool needs_special_offset_handling, | |
114 | unsigned char* view, | |
115 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
364c7fa5 ILT |
116 | section_size_type view_size, |
117 | const Reloc_symbol_changes*); | |
f5314dd5 DM |
118 | |
119 | // Scan the relocs during a relocatable link. | |
120 | void | |
ad0f2072 | 121 | scan_relocatable_relocs(Symbol_table* symtab, |
f5314dd5 | 122 | Layout* layout, |
6fa2a40b | 123 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
124 | unsigned int data_shndx, |
125 | unsigned int sh_type, | |
126 | const unsigned char* prelocs, | |
127 | size_t reloc_count, | |
128 | Output_section* output_section, | |
129 | bool needs_special_offset_handling, | |
130 | size_t local_symbol_count, | |
131 | const unsigned char* plocal_symbols, | |
132 | Relocatable_relocs*); | |
133 | ||
7404fe1b | 134 | // Emit relocations for a section. |
f5314dd5 | 135 | void |
7404fe1b AM |
136 | relocate_relocs(const Relocate_info<size, big_endian>*, |
137 | unsigned int sh_type, | |
138 | const unsigned char* prelocs, | |
139 | size_t reloc_count, | |
140 | Output_section* output_section, | |
62fe925a RM |
141 | typename elfcpp::Elf_types<size>::Elf_Off |
142 | offset_in_output_section, | |
7404fe1b AM |
143 | const Relocatable_relocs*, |
144 | unsigned char* view, | |
145 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
146 | section_size_type view_size, | |
147 | unsigned char* reloc_view, | |
148 | section_size_type reloc_view_size); | |
149 | ||
f5314dd5 DM |
150 | // Return whether SYM is defined by the ABI. |
151 | bool | |
9c2d0ef9 | 152 | do_is_defined_by_abi(const Symbol* sym) const |
f5314dd5 DM |
153 | { |
154 | // XXX Really need to support this better... | |
155 | if (sym->type() == elfcpp::STT_SPARC_REGISTER) | |
156 | return 1; | |
157 | ||
158 | return strcmp(sym->name(), "___tls_get_addr") == 0; | |
159 | } | |
160 | ||
8c2bf391 DM |
161 | // Return the PLT address to use for a global symbol. |
162 | uint64_t | |
163 | do_plt_address_for_global(const Symbol* gsym) const | |
164 | { return this->plt_section()->address_for_global(gsym); } | |
165 | ||
166 | uint64_t | |
167 | do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const | |
168 | { return this->plt_section()->address_for_local(relobj, symndx); } | |
169 | ||
9efe6174 ILT |
170 | // Return whether there is a GOT section. |
171 | bool | |
172 | has_got_section() const | |
173 | { return this->got_ != NULL; } | |
174 | ||
f5314dd5 DM |
175 | // Return the size of the GOT section. |
176 | section_size_type | |
0e70b911 | 177 | got_size() const |
f5314dd5 DM |
178 | { |
179 | gold_assert(this->got_ != NULL); | |
180 | return this->got_->data_size(); | |
181 | } | |
182 | ||
0e70b911 CC |
183 | // Return the number of entries in the GOT. |
184 | unsigned int | |
185 | got_entry_count() const | |
186 | { | |
187 | if (this->got_ == NULL) | |
188 | return 0; | |
189 | return this->got_size() / (size / 8); | |
190 | } | |
191 | ||
2a1079e8 DM |
192 | // Return the address of the GOT. |
193 | uint64_t | |
194 | got_address() const | |
195 | { | |
196 | if (this->got_ == NULL) | |
197 | return 0; | |
198 | return this->got_->address(); | |
199 | } | |
200 | ||
0e70b911 CC |
201 | // Return the number of entries in the PLT. |
202 | unsigned int | |
203 | plt_entry_count() const; | |
204 | ||
205 | // Return the offset of the first non-reserved PLT entry. | |
206 | unsigned int | |
207 | first_plt_entry_offset() const; | |
208 | ||
209 | // Return the size of each PLT entry. | |
210 | unsigned int | |
211 | plt_entry_size() const; | |
212 | ||
a4d85145 DM |
213 | protected: |
214 | // Make an ELF object. | |
215 | Object* | |
216 | do_make_elf_object(const std::string&, Input_file*, off_t, | |
217 | const elfcpp::Ehdr<size, big_endian>& ehdr); | |
218 | ||
219 | void | |
cc84c10b | 220 | do_adjust_elf_header(unsigned char* view, int len); |
a4d85145 | 221 | |
f5314dd5 DM |
222 | private: |
223 | ||
224 | // The class which scans relocations. | |
32b769e1 | 225 | class Scan |
f5314dd5 | 226 | { |
32b769e1 DM |
227 | public: |
228 | Scan() | |
229 | : issued_non_pic_error_(false) | |
230 | { } | |
231 | ||
95a2c8d6 RS |
232 | static inline int |
233 | get_reference_flags(unsigned int r_type); | |
234 | ||
f5314dd5 | 235 | inline void |
ad0f2072 | 236 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 237 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
238 | unsigned int data_shndx, |
239 | Output_section* output_section, | |
240 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
bfdfa4cd AM |
241 | const elfcpp::Sym<size, big_endian>& lsym, |
242 | bool is_discarded); | |
f5314dd5 DM |
243 | |
244 | inline void | |
ad0f2072 | 245 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 246 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
247 | unsigned int data_shndx, |
248 | Output_section* output_section, | |
249 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
250 | Symbol* gsym); | |
251 | ||
21bb3914 ST |
252 | inline bool |
253 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
254 | Target_sparc* , |
255 | Sized_relobj_file<size, big_endian>* , | |
21bb3914 | 256 | unsigned int , |
2e702c99 RM |
257 | Output_section* , |
258 | const elfcpp::Rela<size, big_endian>& , | |
259 | unsigned int , | |
260 | const elfcpp::Sym<size, big_endian>&) | |
21bb3914 ST |
261 | { return false; } |
262 | ||
263 | inline bool | |
264 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
265 | Target_sparc* , |
266 | Sized_relobj_file<size, big_endian>* , | |
267 | unsigned int , | |
268 | Output_section* , | |
269 | const elfcpp::Rela<size, | |
270 | big_endian>& , | |
271 | unsigned int , Symbol*) | |
21bb3914 ST |
272 | { return false; } |
273 | ||
274 | ||
32b769e1 | 275 | private: |
f5314dd5 | 276 | static void |
6fa2a40b | 277 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
278 | unsigned int r_type); |
279 | ||
280 | static void | |
6fa2a40b | 281 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
282 | unsigned int r_type, Symbol*); |
283 | ||
284 | static void | |
285 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
286 | Target_sparc* target); | |
32b769e1 DM |
287 | |
288 | void | |
289 | check_non_pic(Relobj*, unsigned int r_type); | |
290 | ||
8c2bf391 DM |
291 | bool |
292 | reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, | |
293 | unsigned int r_type); | |
294 | ||
32b769e1 DM |
295 | // Whether we have issued an error about a non-PIC compilation. |
296 | bool issued_non_pic_error_; | |
f5314dd5 DM |
297 | }; |
298 | ||
299 | // The class which implements relocation. | |
300 | class Relocate | |
301 | { | |
302 | public: | |
303 | Relocate() | |
abd242a9 | 304 | : ignore_gd_add_(false), reloc_adjust_addr_(NULL) |
f5314dd5 DM |
305 | { } |
306 | ||
307 | ~Relocate() | |
308 | { | |
309 | if (this->ignore_gd_add_) | |
310 | { | |
311 | // FIXME: This needs to specify the location somehow. | |
312 | gold_error(_("missing expected TLS relocation")); | |
313 | } | |
314 | } | |
315 | ||
316 | // Do a relocation. Return false if the caller should not issue | |
317 | // any warnings about this relocation. | |
318 | inline bool | |
319 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
320 | Output_section*, size_t relnum, |
321 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
322 | unsigned int r_type, const Sized_symbol<size>*, |
323 | const Symbol_value<size>*, | |
324 | unsigned char*, | |
325 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
326 | section_size_type); | |
327 | ||
328 | private: | |
329 | // Do a TLS relocation. | |
330 | inline void | |
331 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
2e702c99 | 332 | size_t relnum, const elfcpp::Rela<size, big_endian>&, |
f5314dd5 DM |
333 | unsigned int r_type, const Sized_symbol<size>*, |
334 | const Symbol_value<size>*, | |
335 | unsigned char*, | |
336 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
337 | section_size_type); | |
338 | ||
a5a5f7a3 DM |
339 | inline void |
340 | relax_call(Target_sparc<size, big_endian>* target, | |
341 | unsigned char* view, | |
342 | const elfcpp::Rela<size, big_endian>& rela, | |
343 | section_size_type view_size); | |
344 | ||
f5314dd5 DM |
345 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD |
346 | bool ignore_gd_add_; | |
abd242a9 DM |
347 | |
348 | // If we hit a reloc at this view address, adjust it back by 4 bytes. | |
349 | unsigned char *reloc_adjust_addr_; | |
f5314dd5 DM |
350 | }; |
351 | ||
352 | // A class which returns the size required for a relocation type, | |
353 | // used while scanning relocs during a relocatable link. | |
354 | class Relocatable_size_for_reloc | |
355 | { | |
356 | public: | |
357 | unsigned int | |
358 | get_size_for_reloc(unsigned int, Relobj*); | |
359 | }; | |
360 | ||
361 | // Get the GOT section, creating it if necessary. | |
362 | Output_data_got<size, big_endian>* | |
363 | got_section(Symbol_table*, Layout*); | |
364 | ||
8c2bf391 DM |
365 | // Create the PLT section. |
366 | void | |
367 | make_plt_section(Symbol_table* symtab, Layout* layout); | |
368 | ||
f5314dd5 DM |
369 | // Create a PLT entry for a global symbol. |
370 | void | |
371 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
372 | ||
8c2bf391 DM |
373 | // Create a PLT entry for a local STT_GNU_IFUNC symbol. |
374 | void | |
375 | make_local_ifunc_plt_entry(Symbol_table*, Layout*, | |
376 | Sized_relobj_file<size, big_endian>* relobj, | |
377 | unsigned int local_sym_index); | |
378 | ||
f5314dd5 DM |
379 | // Create a GOT entry for the TLS module index. |
380 | unsigned int | |
381 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
6fa2a40b | 382 | Sized_relobj_file<size, big_endian>* object); |
f5314dd5 DM |
383 | |
384 | // Return the gsym for "__tls_get_addr". Cache if not already | |
385 | // cached. | |
386 | Symbol* | |
387 | tls_get_addr_sym(Symbol_table* symtab) | |
388 | { | |
389 | if (!this->tls_get_addr_sym_) | |
390 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
391 | gold_assert(this->tls_get_addr_sym_); | |
392 | return this->tls_get_addr_sym_; | |
393 | } | |
394 | ||
395 | // Get the PLT section. | |
8c2bf391 | 396 | Output_data_plt_sparc<size, big_endian>* |
f5314dd5 DM |
397 | plt_section() const |
398 | { | |
399 | gold_assert(this->plt_ != NULL); | |
400 | return this->plt_; | |
401 | } | |
402 | ||
403 | // Get the dynamic reloc section, creating it if necessary. | |
404 | Reloc_section* | |
405 | rela_dyn_section(Layout*); | |
406 | ||
8c2bf391 DM |
407 | // Get the section to use for IFUNC relocations. |
408 | Reloc_section* | |
409 | rela_ifunc_section(Layout*); | |
410 | ||
f5314dd5 DM |
411 | // Copy a relocation against a global symbol. |
412 | void | |
ef9beddf | 413 | copy_reloc(Symbol_table* symtab, Layout* layout, |
2e702c99 | 414 | Sized_relobj_file<size, big_endian>* object, |
12c0daef ILT |
415 | unsigned int shndx, Output_section* output_section, |
416 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
417 | { | |
418 | this->copy_relocs_.copy_reloc(symtab, layout, | |
419 | symtab->get_sized_symbol<size>(sym), | |
420 | object, shndx, output_section, | |
421 | reloc, this->rela_dyn_section(layout)); | |
422 | } | |
f5314dd5 DM |
423 | |
424 | // Information about this specific target which we pass to the | |
425 | // general Target structure. | |
426 | static Target::Target_info sparc_info; | |
427 | ||
428 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
429 | // These values are exposed to the ABI in an incremental link. |
430 | // Do not renumber existing values without changing the version | |
431 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
432 | enum Got_type |
433 | { | |
434 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
435 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
436 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
437 | }; | |
438 | ||
439 | // The GOT section. | |
440 | Output_data_got<size, big_endian>* got_; | |
441 | // The PLT section. | |
442 | Output_data_plt_sparc<size, big_endian>* plt_; | |
443 | // The dynamic reloc section. | |
444 | Reloc_section* rela_dyn_; | |
8c2bf391 DM |
445 | // The section to use for IFUNC relocs. |
446 | Reloc_section* rela_ifunc_; | |
f5314dd5 | 447 | // Relocs saved to avoid a COPY reloc. |
12c0daef | 448 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
449 | // Offset of the GOT entry for the TLS module index; |
450 | unsigned int got_mod_index_offset_; | |
451 | // Cached pointer to __tls_get_addr symbol | |
452 | Symbol* tls_get_addr_sym_; | |
a4d85145 DM |
453 | // Accumulated elf machine type |
454 | elfcpp::Elf_Half elf_machine_; | |
455 | // Accumulated elf header flags | |
456 | elfcpp::Elf_Word elf_flags_; | |
457 | // Whether elf_flags_ has been set for the first time yet | |
458 | bool elf_flags_set_; | |
f5314dd5 DM |
459 | }; |
460 | ||
461 | template<> | |
462 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
463 | { | |
464 | 32, // size | |
465 | true, // is_big_endian | |
466 | elfcpp::EM_SPARC, // machine_code | |
467 | false, // has_make_symbol | |
468 | false, // has_resolve | |
469 | false, // has_code_fill | |
470 | true, // is_default_stack_executable | |
b3ce541e | 471 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
472 | '\0', // wrap_char |
473 | "/usr/lib/ld.so.1", // dynamic_linker | |
474 | 0x00010000, // default_text_segment_address | |
475 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 | 476 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
2e702c99 RM |
477 | false, // isolate_execinstr |
478 | 0, // rosegment_gap | |
8a5e3e08 ILT |
479 | elfcpp::SHN_UNDEF, // small_common_shndx |
480 | elfcpp::SHN_UNDEF, // large_common_shndx | |
481 | 0, // small_common_section_flags | |
05a352e6 DK |
482 | 0, // large_common_section_flags |
483 | NULL, // attributes_section | |
a67858e0 CC |
484 | NULL, // attributes_vendor |
485 | "_start" // entry_symbol_name | |
f5314dd5 DM |
486 | }; |
487 | ||
488 | template<> | |
489 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
490 | { | |
491 | 64, // size | |
492 | true, // is_big_endian | |
493 | elfcpp::EM_SPARCV9, // machine_code | |
494 | false, // has_make_symbol | |
495 | false, // has_resolve | |
496 | false, // has_code_fill | |
497 | true, // is_default_stack_executable | |
b3ce541e | 498 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
499 | '\0', // wrap_char |
500 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
501 | 0x100000, // default_text_segment_address | |
502 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 | 503 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
2e702c99 RM |
504 | false, // isolate_execinstr |
505 | 0, // rosegment_gap | |
8a5e3e08 ILT |
506 | elfcpp::SHN_UNDEF, // small_common_shndx |
507 | elfcpp::SHN_UNDEF, // large_common_shndx | |
508 | 0, // small_common_section_flags | |
05a352e6 DK |
509 | 0, // large_common_section_flags |
510 | NULL, // attributes_section | |
a67858e0 CC |
511 | NULL, // attributes_vendor |
512 | "_start" // entry_symbol_name | |
f5314dd5 DM |
513 | }; |
514 | ||
515 | // We have to take care here, even when operating in little-endian | |
516 | // mode, sparc instructions are still big endian. | |
517 | template<int size, bool big_endian> | |
518 | class Sparc_relocate_functions | |
519 | { | |
520 | private: | |
521 | // Do a simple relocation with the addend in the relocation. | |
522 | template<int valsize> | |
523 | static inline void | |
524 | rela(unsigned char* view, | |
525 | unsigned int right_shift, | |
526 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 527 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
528 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
529 | { | |
530 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
531 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
532 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 533 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
534 | |
535 | val &= ~dst_mask; | |
536 | reloc &= dst_mask; | |
537 | ||
538 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
539 | } | |
540 | ||
541 | // Do a simple relocation using a symbol value with the addend in | |
542 | // the relocation. | |
543 | template<int valsize> | |
544 | static inline void | |
545 | rela(unsigned char* view, | |
546 | unsigned int right_shift, | |
547 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 548 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
549 | const Symbol_value<size>* psymval, |
550 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
551 | { | |
552 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
553 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
554 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
555 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
556 | ||
557 | val &= ~dst_mask; | |
558 | reloc &= dst_mask; | |
559 | ||
560 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
561 | } | |
562 | ||
563 | // Do a simple relocation using a symbol value with the addend in | |
564 | // the relocation, unaligned. | |
565 | template<int valsize> | |
566 | static inline void | |
567 | rela_ua(unsigned char* view, | |
568 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
6fa2a40b | 569 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
570 | const Symbol_value<size>* psymval, |
571 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
572 | { | |
573 | typedef typename elfcpp::Swap_unaligned<valsize, | |
574 | big_endian>::Valtype Valtype; | |
575 | unsigned char* wv = view; | |
576 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
577 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
578 | ||
579 | val &= ~dst_mask; | |
580 | reloc &= dst_mask; | |
581 | ||
582 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
583 | } | |
584 | ||
585 | // Do a simple PC relative relocation with a Symbol_value with the | |
586 | // addend in the relocation. | |
587 | template<int valsize> | |
588 | static inline void | |
589 | pcrela(unsigned char* view, | |
590 | unsigned int right_shift, | |
591 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 592 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
593 | const Symbol_value<size>* psymval, |
594 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
595 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
596 | { | |
597 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
598 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
599 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
600 | Valtype reloc = ((psymval->value(object, addend) - address) | |
601 | >> right_shift); | |
602 | ||
603 | val &= ~dst_mask; | |
604 | reloc &= dst_mask; | |
605 | ||
606 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
607 | } | |
608 | ||
609 | template<int valsize> | |
610 | static inline void | |
611 | pcrela_unaligned(unsigned char* view, | |
6fa2a40b | 612 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
613 | const Symbol_value<size>* psymval, |
614 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
615 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
616 | { | |
617 | typedef typename elfcpp::Swap_unaligned<valsize, | |
618 | big_endian>::Valtype Valtype; | |
619 | unsigned char* wv = view; | |
620 | Valtype reloc = (psymval->value(object, addend) - address); | |
621 | ||
622 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
623 | } | |
624 | ||
625 | typedef Sparc_relocate_functions<size, big_endian> This; | |
626 | typedef Sparc_relocate_functions<size, true> This_insn; | |
627 | ||
628 | public: | |
629 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
630 | static inline void | |
631 | wdisp30(unsigned char* view, | |
6fa2a40b | 632 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
633 | const Symbol_value<size>* psymval, |
634 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
635 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
636 | { | |
637 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
638 | psymval, addend, address); | |
639 | } | |
640 | ||
641 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
642 | static inline void | |
643 | wdisp22(unsigned char* view, | |
6fa2a40b | 644 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
645 | const Symbol_value<size>* psymval, |
646 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
647 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
648 | { | |
649 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
650 | psymval, addend, address); | |
651 | } | |
652 | ||
653 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
654 | static inline void | |
655 | wdisp19(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 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
660 | { | |
661 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
662 | psymval, addend, address); | |
663 | } | |
664 | ||
665 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
666 | static inline void | |
667 | wdisp16(unsigned char* view, | |
6fa2a40b | 668 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
669 | const Symbol_value<size>* psymval, |
670 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
671 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
672 | { | |
673 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
674 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
675 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
676 | Valtype reloc = ((psymval->value(object, addend) - address) | |
677 | >> 2); | |
678 | ||
679 | // The relocation value is split between the low 14 bits, | |
680 | // and bits 20-21. | |
681 | val &= ~((0x3 << 20) | 0x3fff); | |
682 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
683 | | (reloc & 0x3ffff)); | |
684 | ||
685 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
686 | } | |
687 | ||
2615994e DM |
688 | // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2 |
689 | static inline void | |
690 | wdisp10(unsigned char* view, | |
691 | const Sized_relobj_file<size, big_endian>* object, | |
692 | const Symbol_value<size>* psymval, | |
693 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
694 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
695 | { | |
696 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
697 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
698 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
699 | Valtype reloc = ((psymval->value(object, addend) - address) | |
700 | >> 2); | |
701 | ||
702 | // The relocation value is split between the low bits 5-12, | |
703 | // and high bits 19-20. | |
704 | val &= ~((0x3 << 19) | (0xff << 5)); | |
705 | reloc = (((reloc & 0x300) << (19 - 8)) | |
706 | | ((reloc & 0xff) << (5 - 0))); | |
707 | ||
708 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
709 | } | |
710 | ||
f5314dd5 DM |
711 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 |
712 | static inline void | |
713 | pc22(unsigned char* view, | |
6fa2a40b | 714 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
715 | const Symbol_value<size>* psymval, |
716 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
717 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
718 | { | |
719 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
720 | psymval, addend, address); | |
721 | } | |
722 | ||
723 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
724 | static inline void | |
725 | pc10(unsigned char* view, | |
6fa2a40b | 726 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
727 | const Symbol_value<size>* psymval, |
728 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
729 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
730 | { | |
731 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
732 | psymval, addend, address); | |
733 | } | |
734 | ||
735 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
736 | static inline void | |
737 | hi22(unsigned char* view, | |
2ea97941 | 738 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
739 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
740 | { | |
2ea97941 | 741 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
742 | } |
743 | ||
744 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
745 | static inline void | |
746 | hi22(unsigned char* view, | |
6fa2a40b | 747 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
748 | const Symbol_value<size>* psymval, |
749 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
750 | { | |
751 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
752 | } | |
753 | ||
754 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
755 | static inline void | |
756 | pcplt22(unsigned char* view, | |
6fa2a40b | 757 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
758 | const Symbol_value<size>* psymval, |
759 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
760 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
761 | { | |
762 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
763 | psymval, addend, address); | |
764 | } | |
765 | ||
766 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
767 | static inline void | |
768 | lo10(unsigned char* view, | |
2ea97941 | 769 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
770 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
771 | { | |
2ea97941 | 772 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
773 | } |
774 | ||
775 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
776 | static inline void | |
777 | lo10(unsigned char* view, | |
6fa2a40b | 778 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
779 | const Symbol_value<size>* psymval, |
780 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
781 | { | |
782 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
783 | } | |
784 | ||
785 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
786 | static inline void | |
787 | lo10(unsigned char* view, | |
6fa2a40b | 788 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
789 | const Symbol_value<size>* psymval, |
790 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
791 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
792 | { | |
793 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
794 | psymval, addend, address); | |
795 | } | |
796 | ||
797 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
798 | static inline void | |
799 | olo10(unsigned char* view, | |
6fa2a40b | 800 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
801 | const Symbol_value<size>* psymval, |
802 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
803 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
804 | { | |
805 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
806 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
807 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
808 | Valtype reloc = psymval->value(object, addend); | |
809 | ||
810 | val &= ~0x1fff; | |
811 | reloc &= 0x3ff; | |
812 | reloc += addend2; | |
813 | reloc &= 0x1fff; | |
814 | ||
815 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
816 | } | |
817 | ||
818 | // R_SPARC_22: (Symbol + Addend) | |
819 | static inline void | |
820 | rela32_22(unsigned char* view, | |
6fa2a40b | 821 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
822 | const Symbol_value<size>* psymval, |
823 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
824 | { | |
825 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
826 | } | |
827 | ||
828 | // R_SPARC_13: (Symbol + Addend) | |
829 | static inline void | |
830 | rela32_13(unsigned char* view, | |
2ea97941 | 831 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
832 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
833 | { | |
2ea97941 | 834 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
835 | } |
836 | ||
837 | // R_SPARC_13: (Symbol + Addend) | |
838 | static inline void | |
839 | rela32_13(unsigned char* view, | |
6fa2a40b | 840 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
841 | const Symbol_value<size>* psymval, |
842 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
843 | { | |
844 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
845 | } | |
846 | ||
847 | // R_SPARC_UA16: (Symbol + Addend) | |
848 | static inline void | |
849 | ua16(unsigned char* view, | |
6fa2a40b | 850 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
851 | const Symbol_value<size>* psymval, |
852 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
853 | { | |
854 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
855 | } | |
856 | ||
857 | // R_SPARC_UA32: (Symbol + Addend) | |
858 | static inline void | |
859 | ua32(unsigned char* view, | |
6fa2a40b | 860 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
861 | const Symbol_value<size>* psymval, |
862 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
863 | { | |
864 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
865 | } | |
866 | ||
867 | // R_SPARC_UA64: (Symbol + Addend) | |
868 | static inline void | |
869 | ua64(unsigned char* view, | |
6fa2a40b | 870 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
871 | const Symbol_value<size>* psymval, |
872 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
873 | { | |
874 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
875 | object, psymval, addend); | |
876 | } | |
877 | ||
878 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
879 | static inline void | |
880 | disp8(unsigned char* view, | |
6fa2a40b | 881 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
882 | const Symbol_value<size>* psymval, |
883 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
884 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
885 | { | |
886 | This::template pcrela_unaligned<8>(view, object, psymval, | |
887 | addend, address); | |
888 | } | |
889 | ||
890 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
891 | static inline void | |
892 | disp16(unsigned char* view, | |
6fa2a40b | 893 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
894 | const Symbol_value<size>* psymval, |
895 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
896 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
897 | { | |
898 | This::template pcrela_unaligned<16>(view, object, psymval, | |
899 | addend, address); | |
900 | } | |
901 | ||
902 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
903 | static inline void | |
904 | disp32(unsigned char* view, | |
6fa2a40b | 905 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
906 | const Symbol_value<size>* psymval, |
907 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
908 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
909 | { | |
910 | This::template pcrela_unaligned<32>(view, object, psymval, | |
911 | addend, address); | |
912 | } | |
913 | ||
914 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
915 | static inline void | |
916 | disp64(unsigned char* view, | |
6fa2a40b | 917 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
918 | const Symbol_value<size>* psymval, |
919 | elfcpp::Elf_Xword addend, | |
920 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
921 | { | |
922 | This::template pcrela_unaligned<64>(view, object, psymval, | |
923 | addend, address); | |
924 | } | |
925 | ||
2615994e DM |
926 | // R_SPARC_H34: (Symbol + Addend) >> 12 |
927 | static inline void | |
928 | h34(unsigned char* view, | |
929 | const Sized_relobj_file<size, big_endian>* object, | |
930 | const Symbol_value<size>* psymval, | |
931 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
932 | { | |
933 | This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend); | |
934 | } | |
935 | ||
f5314dd5 DM |
936 | // R_SPARC_H44: (Symbol + Addend) >> 22 |
937 | static inline void | |
938 | h44(unsigned char* view, | |
6fa2a40b | 939 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
940 | const Symbol_value<size>* psymval, |
941 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
942 | { | |
943 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
944 | } | |
945 | ||
946 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
947 | static inline void | |
948 | m44(unsigned char* view, | |
6fa2a40b | 949 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
950 | const Symbol_value<size>* psymval, |
951 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
952 | { | |
953 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
954 | } | |
955 | ||
956 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
957 | static inline void | |
958 | l44(unsigned char* view, | |
6fa2a40b | 959 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
960 | const Symbol_value<size>* psymval, |
961 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
962 | { | |
963 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
964 | } | |
965 | ||
966 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
967 | static inline void | |
968 | hh22(unsigned char* view, | |
6fa2a40b | 969 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
970 | const Symbol_value<size>* psymval, |
971 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
972 | { | |
973 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
974 | } | |
975 | ||
976 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
977 | static inline void | |
978 | pc_hh22(unsigned char* view, | |
6fa2a40b | 979 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
980 | const Symbol_value<size>* psymval, |
981 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
982 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
983 | { | |
984 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
985 | psymval, addend, address); | |
986 | } | |
987 | ||
988 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
989 | static inline void | |
990 | hm10(unsigned char* view, | |
6fa2a40b | 991 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
992 | const Symbol_value<size>* psymval, |
993 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
994 | { | |
995 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
996 | } | |
997 | ||
998 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
999 | static inline void | |
1000 | pc_hm10(unsigned char* view, | |
6fa2a40b | 1001 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1002 | const Symbol_value<size>* psymval, |
1003 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
1004 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
1005 | { | |
1006 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
1007 | psymval, addend, address); | |
1008 | } | |
1009 | ||
1010 | // R_SPARC_11: (Symbol + Addend) | |
1011 | static inline void | |
1012 | rela32_11(unsigned char* view, | |
6fa2a40b | 1013 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1014 | const Symbol_value<size>* psymval, |
1015 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1016 | { | |
1017 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
1018 | } | |
1019 | ||
1020 | // R_SPARC_10: (Symbol + Addend) | |
1021 | static inline void | |
1022 | rela32_10(unsigned char* view, | |
6fa2a40b | 1023 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1024 | const Symbol_value<size>* psymval, |
1025 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1026 | { | |
1027 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
1028 | } | |
1029 | ||
1030 | // R_SPARC_7: (Symbol + Addend) | |
1031 | static inline void | |
1032 | rela32_7(unsigned char* view, | |
6fa2a40b | 1033 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1034 | const Symbol_value<size>* psymval, |
1035 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1036 | { | |
1037 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
1038 | } | |
1039 | ||
1040 | // R_SPARC_6: (Symbol + Addend) | |
1041 | static inline void | |
1042 | rela32_6(unsigned char* view, | |
6fa2a40b | 1043 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1044 | const Symbol_value<size>* psymval, |
1045 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1046 | { | |
1047 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
1048 | } | |
1049 | ||
1050 | // R_SPARC_5: (Symbol + Addend) | |
1051 | static inline void | |
1052 | rela32_5(unsigned char* view, | |
6fa2a40b | 1053 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1054 | const Symbol_value<size>* psymval, |
1055 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1056 | { | |
1057 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
1058 | } | |
1059 | ||
1060 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
1061 | static inline void | |
1062 | ldo_hix22(unsigned char* view, | |
2ea97941 | 1063 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1064 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1065 | { | |
2ea97941 | 1066 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
1067 | } |
1068 | ||
1069 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
1070 | static inline void | |
1071 | ldo_lox10(unsigned char* view, | |
2ea97941 | 1072 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1073 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1074 | { | |
1075 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1076 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1077 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1078 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1079 | |
1080 | val &= ~0x1fff; | |
1081 | reloc &= 0x3ff; | |
1082 | ||
1083 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1084 | } | |
1085 | ||
1086 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1087 | static inline void | |
1088 | hix22(unsigned char* view, | |
2ea97941 | 1089 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1090 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1091 | { | |
1092 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1093 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1094 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1095 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1096 | |
1097 | val &= ~0x3fffff; | |
1098 | ||
1099 | reloc ^= ~(Valtype)0; | |
1100 | reloc >>= 10; | |
1101 | ||
1102 | reloc &= 0x3fffff; | |
1103 | ||
1104 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1105 | } | |
1106 | ||
2a1079e8 DM |
1107 | // R_SPARC_GOTDATA_OP_HIX22: @gdopoff(Symbol + Addend) >> 10 |
1108 | static inline void | |
1109 | gdop_hix22(unsigned char* view, | |
1110 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1111 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1112 | { | |
1113 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1114 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1115 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1116 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1117 | ||
1118 | val &= ~0x3fffff; | |
1119 | ||
1120 | if (reloc < 0) | |
1121 | reloc ^= ~static_cast<int32_t>(0); | |
1122 | reloc >>= 10; | |
1123 | ||
1124 | reloc &= 0x3fffff; | |
1125 | ||
1126 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1127 | } | |
1128 | ||
f5314dd5 DM |
1129 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 |
1130 | static inline void | |
1131 | hix22(unsigned char* view, | |
6fa2a40b | 1132 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1133 | const Symbol_value<size>* psymval, |
1134 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1135 | { | |
1136 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1137 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1138 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1139 | Valtype reloc = psymval->value(object, addend); | |
1140 | ||
1141 | val &= ~0x3fffff; | |
1142 | ||
1143 | reloc ^= ~(Valtype)0; | |
1144 | reloc >>= 10; | |
1145 | ||
1146 | reloc &= 0x3fffff; | |
1147 | ||
1148 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1149 | } | |
1150 | ||
1151 | ||
1152 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1153 | static inline void | |
1154 | lox10(unsigned char* view, | |
2ea97941 | 1155 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1156 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1157 | { | |
1158 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1159 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1160 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1161 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1162 | |
1163 | val &= ~0x1fff; | |
1164 | reloc &= 0x3ff; | |
1165 | reloc |= 0x1c00; | |
1166 | ||
1167 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1168 | } | |
1169 | ||
2a1079e8 DM |
1170 | // R_SPARC_GOTDATA_OP_LOX10: (@gdopoff(Symbol + Addend) & 0x3ff) | 0x1c00 |
1171 | static inline void | |
1172 | gdop_lox10(unsigned char* view, | |
1173 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1174 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1175 | { | |
1176 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1177 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1178 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1179 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1180 | ||
1181 | if (reloc < 0) | |
1182 | reloc = (reloc & 0x3ff) | 0x1c00; | |
1183 | else | |
1184 | reloc = (reloc & 0x3ff); | |
1185 | ||
1186 | val &= ~0x1fff; | |
1187 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1188 | } | |
1189 | ||
f5314dd5 DM |
1190 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 |
1191 | static inline void | |
1192 | lox10(unsigned char* view, | |
6fa2a40b | 1193 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1194 | const Symbol_value<size>* psymval, |
1195 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1196 | { | |
1197 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1198 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1199 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1200 | Valtype reloc = psymval->value(object, addend); | |
1201 | ||
1202 | val &= ~0x1fff; | |
1203 | reloc &= 0x3ff; | |
1204 | reloc |= 0x1c00; | |
1205 | ||
1206 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1207 | } | |
1208 | }; | |
1209 | ||
1210 | // Get the GOT section, creating it if necessary. | |
1211 | ||
1212 | template<int size, bool big_endian> | |
1213 | Output_data_got<size, big_endian>* | |
1214 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1215 | Layout* layout) | |
1216 | { | |
1217 | if (this->got_ == NULL) | |
1218 | { | |
1219 | gold_assert(symtab != NULL && layout != NULL); | |
1220 | ||
1221 | this->got_ = new Output_data_got<size, big_endian>(); | |
1222 | ||
82742395 ILT |
1223 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1224 | (elfcpp::SHF_ALLOC | |
1225 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1226 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1227 | |
1228 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1229 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1230 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1231 | this->got_, |
1232 | 0, 0, elfcpp::STT_OBJECT, | |
1233 | elfcpp::STB_LOCAL, | |
1234 | elfcpp::STV_HIDDEN, 0, | |
1235 | false, false); | |
1236 | } | |
1237 | ||
1238 | return this->got_; | |
1239 | } | |
1240 | ||
1241 | // Get the dynamic reloc section, creating it if necessary. | |
1242 | ||
1243 | template<int size, bool big_endian> | |
1244 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1245 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1246 | { | |
1247 | if (this->rela_dyn_ == NULL) | |
1248 | { | |
1249 | gold_assert(layout != NULL); | |
d98bc257 | 1250 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1251 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1252 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1253 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1254 | } |
1255 | return this->rela_dyn_; | |
1256 | } | |
1257 | ||
8c2bf391 DM |
1258 | // Get the section to use for IFUNC relocs, creating it if |
1259 | // necessary. These go in .rela.dyn, but only after all other dynamic | |
1260 | // relocations. They need to follow the other dynamic relocations so | |
1261 | // that they can refer to global variables initialized by those | |
1262 | // relocs. | |
1263 | ||
1264 | template<int size, bool big_endian> | |
1265 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1266 | Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout) | |
1267 | { | |
1268 | if (this->rela_ifunc_ == NULL) | |
1269 | { | |
1270 | // Make sure we have already created the dynamic reloc section. | |
1271 | this->rela_dyn_section(layout); | |
1272 | this->rela_ifunc_ = new Reloc_section(false); | |
1273 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, | |
1274 | elfcpp::SHF_ALLOC, this->rela_ifunc_, | |
1275 | ORDER_DYNAMIC_RELOCS, false); | |
1276 | gold_assert(this->rela_dyn_->output_section() | |
1277 | == this->rela_ifunc_->output_section()); | |
1278 | } | |
1279 | return this->rela_ifunc_; | |
1280 | } | |
1281 | ||
f5314dd5 DM |
1282 | // A class to handle the PLT data. |
1283 | ||
1284 | template<int size, bool big_endian> | |
1285 | class Output_data_plt_sparc : public Output_section_data | |
1286 | { | |
1287 | public: | |
1288 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1289 | size, big_endian> Reloc_section; | |
1290 | ||
1291 | Output_data_plt_sparc(Layout*); | |
1292 | ||
1293 | // Add an entry to the PLT. | |
8c2bf391 DM |
1294 | void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym); |
1295 | ||
1296 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. | |
1297 | unsigned int | |
1298 | add_local_ifunc_entry(Symbol_table*, Layout*, | |
1299 | Sized_relobj_file<size, big_endian>* relobj, | |
1300 | unsigned int local_sym_index); | |
f5314dd5 DM |
1301 | |
1302 | // Return the .rela.plt section data. | |
1303 | const Reloc_section* rel_plt() const | |
1304 | { | |
1305 | return this->rel_; | |
1306 | } | |
1307 | ||
8c2bf391 DM |
1308 | // Return where the IFUNC relocations should go. |
1309 | Reloc_section* | |
1310 | rela_ifunc(Symbol_table*, Layout*); | |
1311 | ||
1312 | void | |
1313 | emit_pending_ifunc_relocs(); | |
1314 | ||
1315 | // Return whether we created a section for IFUNC relocations. | |
1316 | bool | |
1317 | has_ifunc_section() const | |
1318 | { return this->ifunc_rel_ != NULL; } | |
1319 | ||
0e70b911 CC |
1320 | // Return the number of PLT entries. |
1321 | unsigned int | |
1322 | entry_count() const | |
8c2bf391 | 1323 | { return this->count_ + this->ifunc_count_; } |
0e70b911 CC |
1324 | |
1325 | // Return the offset of the first non-reserved PLT entry. | |
1326 | static unsigned int | |
1327 | first_plt_entry_offset() | |
1328 | { return 4 * base_plt_entry_size; } | |
1329 | ||
1330 | // Return the size of a PLT entry. | |
1331 | static unsigned int | |
1332 | get_plt_entry_size() | |
1333 | { return base_plt_entry_size; } | |
1334 | ||
8c2bf391 DM |
1335 | // Return the PLT address to use for a global symbol. |
1336 | uint64_t | |
1337 | address_for_global(const Symbol*); | |
1338 | ||
1339 | // Return the PLT address to use for a local symbol. | |
1340 | uint64_t | |
1341 | address_for_local(const Relobj*, unsigned int symndx); | |
1342 | ||
f5314dd5 DM |
1343 | protected: |
1344 | void do_adjust_output_section(Output_section* os); | |
1345 | ||
7d9e3d98 ILT |
1346 | // Write to a map file. |
1347 | void | |
1348 | do_print_to_mapfile(Mapfile* mapfile) const | |
1349 | { mapfile->print_output_data(this, _("** PLT")); } | |
1350 | ||
f5314dd5 DM |
1351 | private: |
1352 | // The size of an entry in the PLT. | |
1353 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1354 | ||
1355 | static const unsigned int plt_entries_per_block = 160; | |
1356 | static const unsigned int plt_insn_chunk_size = 24; | |
1357 | static const unsigned int plt_pointer_chunk_size = 8; | |
1358 | static const unsigned int plt_block_size = | |
1359 | (plt_entries_per_block | |
1360 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1361 | ||
8c2bf391 DM |
1362 | section_offset_type |
1363 | plt_index_to_offset(unsigned int index) | |
f5314dd5 | 1364 | { |
8c2bf391 | 1365 | section_offset_type offset; |
f5314dd5 | 1366 | |
8c2bf391 DM |
1367 | if (size == 32 || index < 32768) |
1368 | offset = index * base_plt_entry_size; | |
f5314dd5 DM |
1369 | else |
1370 | { | |
8c2bf391 | 1371 | unsigned int ext_index = index - 32768; |
f5314dd5 | 1372 | |
8c2bf391 DM |
1373 | offset = (32768 * base_plt_entry_size) |
1374 | + ((ext_index / plt_entries_per_block) | |
1375 | * plt_block_size) | |
1376 | + ((ext_index % plt_entries_per_block) | |
1377 | * plt_insn_chunk_size); | |
f5314dd5 | 1378 | } |
8c2bf391 DM |
1379 | return offset; |
1380 | } | |
1381 | ||
1382 | // Set the final size. | |
1383 | void | |
1384 | set_final_data_size() | |
1385 | { | |
1386 | unsigned int full_count = this->entry_count() + 4; | |
1387 | unsigned int extra = (size == 32 ? 4 : 0); | |
1388 | section_offset_type sz = plt_index_to_offset(full_count) + extra; | |
1389 | ||
1390 | return this->set_data_size(sz); | |
f5314dd5 DM |
1391 | } |
1392 | ||
1393 | // Write out the PLT data. | |
1394 | void | |
1395 | do_write(Output_file*); | |
1396 | ||
8c2bf391 DM |
1397 | struct Global_ifunc |
1398 | { | |
1399 | Reloc_section* rel; | |
1400 | Symbol* gsym; | |
1401 | unsigned int plt_index; | |
1402 | }; | |
1403 | ||
1404 | struct Local_ifunc | |
1405 | { | |
1406 | Reloc_section* rel; | |
1407 | Sized_relobj_file<size, big_endian>* object; | |
1408 | unsigned int local_sym_index; | |
1409 | unsigned int plt_index; | |
1410 | }; | |
1411 | ||
f5314dd5 DM |
1412 | // The reloc section. |
1413 | Reloc_section* rel_; | |
8c2bf391 DM |
1414 | // The IFUNC relocations, if necessary. These must follow the |
1415 | // regular relocations. | |
1416 | Reloc_section* ifunc_rel_; | |
f5314dd5 DM |
1417 | // The number of PLT entries. |
1418 | unsigned int count_; | |
8c2bf391 DM |
1419 | // The number of PLT entries for IFUNC symbols. |
1420 | unsigned int ifunc_count_; | |
1421 | // Global STT_GNU_IFUNC symbols. | |
1422 | std::vector<Global_ifunc> global_ifuncs_; | |
1423 | // Local STT_GNU_IFUNC symbols. | |
1424 | std::vector<Local_ifunc> local_ifuncs_; | |
f5314dd5 DM |
1425 | }; |
1426 | ||
4f2a9edd ILT |
1427 | // Define the constants as required by C++ standard. |
1428 | ||
1429 | template<int size, bool big_endian> | |
1430 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1431 | ||
1432 | template<int size, bool big_endian> | |
1433 | const unsigned int | |
1434 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1435 | ||
1436 | template<int size, bool big_endian> | |
1437 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1438 | ||
1439 | template<int size, bool big_endian> | |
1440 | const unsigned int | |
1441 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1442 | ||
1443 | template<int size, bool big_endian> | |
1444 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1445 | ||
f5314dd5 DM |
1446 | // Create the PLT section. The ordinary .got section is an argument, |
1447 | // since we need to refer to the start. | |
1448 | ||
1449 | template<int size, bool big_endian> | |
1450 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
8c2bf391 DM |
1451 | : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL), |
1452 | count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_() | |
f5314dd5 | 1453 | { |
d98bc257 | 1454 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1455 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1456 | elfcpp::SHF_ALLOC, this->rel_, |
1457 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1458 | } |
1459 | ||
1460 | template<int size, bool big_endian> | |
1461 | void | |
1462 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1463 | { | |
1464 | os->set_entsize(0); | |
1465 | } | |
1466 | ||
1467 | // Add an entry to the PLT. | |
1468 | ||
1469 | template<int size, bool big_endian> | |
1470 | void | |
8c2bf391 DM |
1471 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab, |
1472 | Layout* layout, | |
1473 | Symbol* gsym) | |
f5314dd5 DM |
1474 | { |
1475 | gold_assert(!gsym->has_plt_offset()); | |
1476 | ||
f5314dd5 | 1477 | section_offset_type plt_offset; |
8c2bf391 | 1478 | unsigned int index; |
f5314dd5 | 1479 | |
8c2bf391 DM |
1480 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
1481 | && gsym->can_use_relative_reloc(false)) | |
1482 | { | |
1483 | index = this->ifunc_count_; | |
1484 | plt_offset = plt_index_to_offset(index); | |
1485 | gsym->set_plt_offset(plt_offset); | |
1486 | ++this->ifunc_count_; | |
1487 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1488 | ||
1489 | struct Global_ifunc gi; | |
1490 | gi.rel = rel; | |
1491 | gi.gsym = gsym; | |
1492 | gi.plt_index = index; | |
1493 | this->global_ifuncs_.push_back(gi); | |
1494 | } | |
f5314dd5 DM |
1495 | else |
1496 | { | |
8c2bf391 DM |
1497 | plt_offset = plt_index_to_offset(this->count_ + 4); |
1498 | gsym->set_plt_offset(plt_offset); | |
1499 | ++this->count_; | |
1500 | gsym->set_needs_dynsym_entry(); | |
1501 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1502 | plt_offset, 0); | |
1503 | } | |
f5314dd5 | 1504 | |
8c2bf391 DM |
1505 | // Note that we don't need to save the symbol. The contents of the |
1506 | // PLT are independent of which symbols are used. The symbols only | |
1507 | // appear in the relocations. | |
1508 | } | |
1509 | ||
1510 | template<int size, bool big_endian> | |
1511 | unsigned int | |
1512 | Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry( | |
1513 | Symbol_table* symtab, | |
1514 | Layout* layout, | |
1515 | Sized_relobj_file<size, big_endian>* relobj, | |
1516 | unsigned int local_sym_index) | |
1517 | { | |
1518 | unsigned int index = this->ifunc_count_; | |
1519 | section_offset_type plt_offset; | |
1520 | ||
1521 | plt_offset = plt_index_to_offset(index); | |
1522 | ++this->ifunc_count_; | |
1523 | ||
1524 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1525 | ||
1526 | struct Local_ifunc li; | |
1527 | li.rel = rel; | |
1528 | li.object = relobj; | |
1529 | li.local_sym_index = local_sym_index; | |
1530 | li.plt_index = index; | |
1531 | this->local_ifuncs_.push_back(li); | |
1532 | ||
1533 | return plt_offset; | |
1534 | } | |
1535 | ||
1536 | // Emit any pending IFUNC plt relocations. | |
1537 | ||
1538 | template<int size, bool big_endian> | |
1539 | void | |
1540 | Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs() | |
1541 | { | |
1542 | // Emit any pending IFUNC relocs. | |
1543 | for (typename std::vector<Global_ifunc>::const_iterator p = | |
1544 | this->global_ifuncs_.begin(); | |
1545 | p != this->global_ifuncs_.end(); | |
1546 | ++p) | |
1547 | { | |
1548 | section_offset_type plt_offset; | |
1549 | unsigned int index; | |
1550 | ||
1551 | index = this->count_ + p->plt_index + 4; | |
1552 | plt_offset = this->plt_index_to_offset(index); | |
1553 | p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL, | |
1554 | this, plt_offset, 0); | |
1555 | } | |
1556 | ||
1557 | for (typename std::vector<Local_ifunc>::const_iterator p = | |
1558 | this->local_ifuncs_.begin(); | |
1559 | p != this->local_ifuncs_.end(); | |
1560 | ++p) | |
1561 | { | |
1562 | section_offset_type plt_offset; | |
1563 | unsigned int index; | |
1564 | ||
1565 | index = this->count_ + p->plt_index + 4; | |
1566 | plt_offset = this->plt_index_to_offset(index); | |
1567 | p->rel->add_symbolless_local_addend(p->object, p->local_sym_index, | |
1568 | elfcpp::R_SPARC_JMP_IREL, | |
1569 | this, plt_offset, 0); | |
f5314dd5 | 1570 | } |
8c2bf391 | 1571 | } |
f5314dd5 | 1572 | |
8c2bf391 DM |
1573 | // Return where the IFUNC relocations should go in the PLT. These |
1574 | // follow the non-IFUNC relocations. | |
f5314dd5 | 1575 | |
8c2bf391 DM |
1576 | template<int size, bool big_endian> |
1577 | typename Output_data_plt_sparc<size, big_endian>::Reloc_section* | |
1578 | Output_data_plt_sparc<size, big_endian>::rela_ifunc( | |
1579 | Symbol_table* symtab, | |
1580 | Layout* layout) | |
1581 | { | |
1582 | if (this->ifunc_rel_ == NULL) | |
1583 | { | |
1584 | this->ifunc_rel_ = new Reloc_section(false); | |
1585 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, | |
1586 | elfcpp::SHF_ALLOC, this->ifunc_rel_, | |
1587 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
1588 | gold_assert(this->ifunc_rel_->output_section() | |
1589 | == this->rel_->output_section()); | |
1590 | ||
1591 | if (parameters->doing_static_link()) | |
1592 | { | |
1593 | // A statically linked executable will only have a .rel.plt | |
1594 | // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL | |
1595 | // relocs for STT_GNU_IFUNC symbols. The library will use | |
1596 | // these symbols to locate the IRELATIVE and JMP_IREL relocs | |
1597 | // at program startup time. | |
1598 | symtab->define_in_output_data("__rela_iplt_start", NULL, | |
1599 | Symbol_table::PREDEFINED, | |
1600 | this->ifunc_rel_, 0, 0, | |
1601 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1602 | elfcpp::STV_HIDDEN, 0, false, true); | |
1603 | symtab->define_in_output_data("__rela_iplt_end", NULL, | |
1604 | Symbol_table::PREDEFINED, | |
1605 | this->ifunc_rel_, 0, 0, | |
1606 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1607 | elfcpp::STV_HIDDEN, 0, true, true); | |
1608 | } | |
1609 | } | |
1610 | return this->ifunc_rel_; | |
1611 | } | |
f5314dd5 | 1612 | |
8c2bf391 | 1613 | // Return the PLT address to use for a global symbol. |
f5314dd5 | 1614 | |
8c2bf391 DM |
1615 | template<int size, bool big_endian> |
1616 | uint64_t | |
1617 | Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym) | |
1618 | { | |
1619 | uint64_t offset = 0; | |
1620 | if (gsym->type() == elfcpp::STT_GNU_IFUNC | |
1621 | && gsym->can_use_relative_reloc(false)) | |
1622 | offset = plt_index_to_offset(this->count_ + 4); | |
19fec8c1 | 1623 | return this->address() + offset + gsym->plt_offset(); |
8c2bf391 DM |
1624 | } |
1625 | ||
1626 | // Return the PLT address to use for a local symbol. These are always | |
1627 | // IRELATIVE relocs. | |
1628 | ||
1629 | template<int size, bool big_endian> | |
1630 | uint64_t | |
1631 | Output_data_plt_sparc<size, big_endian>::address_for_local( | |
19fec8c1 AM |
1632 | const Relobj* object, |
1633 | unsigned int r_sym) | |
8c2bf391 | 1634 | { |
19fec8c1 AM |
1635 | return (this->address() |
1636 | + plt_index_to_offset(this->count_ + 4) | |
1637 | + object->local_plt_offset(r_sym)); | |
f5314dd5 DM |
1638 | } |
1639 | ||
1640 | static const unsigned int sparc_nop = 0x01000000; | |
1641 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1642 | static const unsigned int sparc_branch_always = 0x30800000; | |
1643 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1644 | static const unsigned int sparc_mov = 0x80100000; | |
1645 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1646 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1647 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1648 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1649 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1650 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1651 | ||
1652 | // Write out the PLT. | |
1653 | ||
1654 | template<int size, bool big_endian> | |
1655 | void | |
1656 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1657 | { | |
2ea97941 | 1658 | const off_t offset = this->offset(); |
f5314dd5 DM |
1659 | const section_size_type oview_size = |
1660 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1661 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1662 | unsigned char* pov = oview; |
1663 | ||
1664 | memset(pov, 0, base_plt_entry_size * 4); | |
8c2bf391 | 1665 | pov += this->first_plt_entry_offset(); |
f5314dd5 DM |
1666 | |
1667 | unsigned int plt_offset = base_plt_entry_size * 4; | |
8c2bf391 | 1668 | const unsigned int count = this->entry_count(); |
f5314dd5 DM |
1669 | |
1670 | if (size == 64) | |
1671 | { | |
1672 | unsigned int limit; | |
1673 | ||
1674 | limit = (count > 32768 ? 32768 : count); | |
1675 | ||
1676 | for (unsigned int i = 0; i < limit; ++i) | |
1677 | { | |
1678 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1679 | sparc_sethi_g1 + plt_offset); | |
1680 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1681 | sparc_branch_always_pt + | |
1682 | (((base_plt_entry_size - | |
1683 | (plt_offset + 4)) >> 2) & | |
1684 | 0x7ffff)); | |
1685 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1686 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1687 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1688 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1689 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1690 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1691 | ||
1692 | pov += base_plt_entry_size; | |
1693 | plt_offset += base_plt_entry_size; | |
1694 | } | |
1695 | ||
1696 | if (count > 32768) | |
1697 | { | |
1698 | unsigned int ext_cnt = count - 32768; | |
1699 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1700 | ||
1701 | for (unsigned int i = 0; i < blks; ++i) | |
1702 | { | |
1703 | unsigned int data_off = (plt_entries_per_block | |
1704 | * plt_insn_chunk_size) - 4; | |
1705 | ||
1706 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1707 | { | |
1708 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1709 | sparc_mov_o7_g5); | |
1710 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1711 | sparc_call_plus_8); | |
1712 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1713 | sparc_nop); | |
1714 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1715 | sparc_ldx_o7_imm_g1 + | |
1716 | (data_off & 0x1fff)); | |
1717 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1718 | sparc_jmpl_o7_g1_g1); | |
1719 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1720 | sparc_mov_g5_o7); | |
1721 | ||
1722 | elfcpp::Swap<64, big_endian>::writeval( | |
1723 | pov + 0x4 + data_off, | |
1724 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1725 | ||
1726 | pov += plt_insn_chunk_size; | |
1727 | data_off -= 16; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1732 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1733 | { | |
1734 | unsigned int data_off = (sub_blk_cnt | |
1735 | * plt_insn_chunk_size) - 4; | |
1736 | ||
1737 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1738 | { | |
1739 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1740 | sparc_mov_o7_g5); | |
1741 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1742 | sparc_call_plus_8); | |
1743 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1744 | sparc_nop); | |
1745 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1746 | sparc_ldx_o7_imm_g1 + | |
1747 | (data_off & 0x1fff)); | |
1748 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1749 | sparc_jmpl_o7_g1_g1); | |
1750 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1751 | sparc_mov_g5_o7); | |
1752 | ||
1753 | elfcpp::Swap<64, big_endian>::writeval( | |
1754 | pov + 0x4 + data_off, | |
1755 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1756 | ||
1757 | pov += plt_insn_chunk_size; | |
1758 | data_off -= 16; | |
1759 | } | |
1760 | } | |
1761 | } | |
1762 | } | |
1763 | else | |
1764 | { | |
1765 | for (unsigned int i = 0; i < count; ++i) | |
1766 | { | |
1767 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1768 | sparc_sethi_g1 + plt_offset); | |
1769 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1770 | sparc_branch_always + | |
1771 | (((- (plt_offset + 4)) >> 2) & | |
1772 | 0x003fffff)); | |
1773 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1774 | ||
1775 | pov += base_plt_entry_size; | |
1776 | plt_offset += base_plt_entry_size; | |
1777 | } | |
1778 | ||
1779 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1780 | pov += 4; | |
1781 | } | |
1782 | ||
1783 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1784 | ||
2ea97941 | 1785 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1786 | } |
1787 | ||
8c2bf391 DM |
1788 | // Create the PLT section. |
1789 | ||
1790 | template<int size, bool big_endian> | |
1791 | void | |
1792 | Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab, | |
1793 | Layout* layout) | |
1794 | { | |
1795 | // Create the GOT sections first. | |
1796 | this->got_section(symtab, layout); | |
1797 | ||
1798 | // Ensure that .rela.dyn always appears before .rela.plt This is | |
1799 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1800 | // needs to include .rela.plt in it's range. | |
1801 | this->rela_dyn_section(layout); | |
1802 | ||
1803 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); | |
1804 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1805 | (elfcpp::SHF_ALLOC | |
1806 | | elfcpp::SHF_EXECINSTR | |
1807 | | elfcpp::SHF_WRITE), | |
1808 | this->plt_, ORDER_NON_RELRO_FIRST, false); | |
1809 | ||
1810 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1811 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
1812 | Symbol_table::PREDEFINED, | |
1813 | this->plt_, | |
1814 | 0, 0, elfcpp::STT_OBJECT, | |
1815 | elfcpp::STB_LOCAL, | |
1816 | elfcpp::STV_HIDDEN, 0, | |
1817 | false, false); | |
1818 | } | |
1819 | ||
f5314dd5 DM |
1820 | // Create a PLT entry for a global symbol. |
1821 | ||
1822 | template<int size, bool big_endian> | |
1823 | void | |
1824 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1825 | Layout* layout, | |
1826 | Symbol* gsym) | |
1827 | { | |
1828 | if (gsym->has_plt_offset()) | |
1829 | return; | |
1830 | ||
1831 | if (this->plt_ == NULL) | |
8c2bf391 | 1832 | this->make_plt_section(symtab, layout); |
f5314dd5 | 1833 | |
8c2bf391 DM |
1834 | this->plt_->add_entry(symtab, layout, gsym); |
1835 | } | |
f5314dd5 | 1836 | |
8c2bf391 | 1837 | // Make a PLT entry for a local STT_GNU_IFUNC symbol. |
f5314dd5 | 1838 | |
8c2bf391 DM |
1839 | template<int size, bool big_endian> |
1840 | void | |
1841 | Target_sparc<size, big_endian>::make_local_ifunc_plt_entry( | |
1842 | Symbol_table* symtab, | |
1843 | Layout* layout, | |
1844 | Sized_relobj_file<size, big_endian>* relobj, | |
1845 | unsigned int local_sym_index) | |
1846 | { | |
1847 | if (relobj->local_has_plt_offset(local_sym_index)) | |
1848 | return; | |
1849 | if (this->plt_ == NULL) | |
1850 | this->make_plt_section(symtab, layout); | |
1851 | unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, | |
1852 | relobj, | |
1853 | local_sym_index); | |
1854 | relobj->set_local_plt_offset(local_sym_index, plt_offset); | |
f5314dd5 DM |
1855 | } |
1856 | ||
0e70b911 CC |
1857 | // Return the number of entries in the PLT. |
1858 | ||
1859 | template<int size, bool big_endian> | |
1860 | unsigned int | |
1861 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1862 | { | |
1863 | if (this->plt_ == NULL) | |
1864 | return 0; | |
1865 | return this->plt_->entry_count(); | |
1866 | } | |
1867 | ||
1868 | // Return the offset of the first non-reserved PLT entry. | |
1869 | ||
1870 | template<int size, bool big_endian> | |
1871 | unsigned int | |
1872 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1873 | { | |
1874 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1875 | } | |
1876 | ||
1877 | // Return the size of each PLT entry. | |
1878 | ||
1879 | template<int size, bool big_endian> | |
1880 | unsigned int | |
1881 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1882 | { | |
1883 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1884 | } | |
1885 | ||
f5314dd5 DM |
1886 | // Create a GOT entry for the TLS module index. |
1887 | ||
1888 | template<int size, bool big_endian> | |
1889 | unsigned int | |
6fa2a40b CC |
1890 | Target_sparc<size, big_endian>::got_mod_index_entry( |
1891 | Symbol_table* symtab, | |
1892 | Layout* layout, | |
1893 | Sized_relobj_file<size, big_endian>* object) | |
f5314dd5 DM |
1894 | { |
1895 | if (this->got_mod_index_offset_ == -1U) | |
1896 | { | |
1897 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1898 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1899 | Output_data_got<size, big_endian>* got; | |
1900 | unsigned int got_offset; | |
1901 | ||
1902 | got = this->got_section(symtab, layout); | |
1903 | got_offset = got->add_constant(0); | |
1904 | rela_dyn->add_local(object, 0, | |
1905 | (size == 64 ? | |
1906 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1907 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1908 | got_offset, 0); | |
1909 | got->add_constant(0); | |
1910 | this->got_mod_index_offset_ = got_offset; | |
1911 | } | |
1912 | return this->got_mod_index_offset_; | |
1913 | } | |
1914 | ||
f5314dd5 DM |
1915 | // Optimize the TLS relocation type based on what we know about the |
1916 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1917 | // known at link time. | |
1918 | ||
1919 | static tls::Tls_optimization | |
1920 | optimize_tls_reloc(bool is_final, int r_type) | |
1921 | { | |
1922 | // If we are generating a shared library, then we can't do anything | |
1923 | // in the linker. | |
1924 | if (parameters->options().shared()) | |
1925 | return tls::TLSOPT_NONE; | |
1926 | ||
1927 | switch (r_type) | |
1928 | { | |
1929 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1930 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1931 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1932 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1933 | // These are General-Dynamic which permits fully general TLS | |
1934 | // access. Since we know that we are generating an executable, | |
1935 | // we can convert this to Initial-Exec. If we also know that | |
1936 | // this is a local symbol, we can further switch to Local-Exec. | |
1937 | if (is_final) | |
1938 | return tls::TLSOPT_TO_LE; | |
1939 | return tls::TLSOPT_TO_IE; | |
1940 | ||
1941 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1942 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1943 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1944 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1945 | // This is Local-Dynamic, which refers to a local symbol in the | |
1946 | // dynamic TLS block. Since we know that we generating an | |
1947 | // executable, we can switch to Local-Exec. | |
1948 | return tls::TLSOPT_TO_LE; | |
1949 | ||
1950 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1951 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1952 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1953 | // Another type of Local-Dynamic relocation. | |
1954 | return tls::TLSOPT_TO_LE; | |
1955 | ||
1956 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1957 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1958 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1959 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1960 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1961 | // These are Initial-Exec relocs which get the thread offset |
1962 | // from the GOT. If we know that we are linking against the | |
1963 | // local symbol, we can switch to Local-Exec, which links the | |
1964 | // thread offset into the instruction. | |
1965 | if (is_final) | |
1966 | return tls::TLSOPT_TO_LE; | |
1967 | return tls::TLSOPT_NONE; | |
1968 | ||
1969 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1970 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1971 | // When we already have Local-Exec, there is nothing further we | |
1972 | // can do. | |
1973 | return tls::TLSOPT_NONE; | |
1974 | ||
1975 | default: | |
1976 | gold_unreachable(); | |
1977 | } | |
1978 | } | |
1979 | ||
95a2c8d6 RS |
1980 | // Get the Reference_flags for a particular relocation. |
1981 | ||
1982 | template<int size, bool big_endian> | |
1983 | int | |
1984 | Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) | |
1985 | { | |
1986 | r_type &= 0xff; | |
1987 | switch (r_type) | |
1988 | { | |
1989 | case elfcpp::R_SPARC_NONE: | |
1990 | case elfcpp::R_SPARC_REGISTER: | |
1991 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1992 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1993 | // No symbol reference. | |
1994 | return 0; | |
1995 | ||
1996 | case elfcpp::R_SPARC_UA64: | |
1997 | case elfcpp::R_SPARC_64: | |
1998 | case elfcpp::R_SPARC_HIX22: | |
1999 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2000 | case elfcpp::R_SPARC_H34: |
95a2c8d6 RS |
2001 | case elfcpp::R_SPARC_H44: |
2002 | case elfcpp::R_SPARC_M44: | |
2003 | case elfcpp::R_SPARC_L44: | |
2004 | case elfcpp::R_SPARC_HH22: | |
2005 | case elfcpp::R_SPARC_HM10: | |
2006 | case elfcpp::R_SPARC_LM22: | |
2007 | case elfcpp::R_SPARC_HI22: | |
2008 | case elfcpp::R_SPARC_LO10: | |
2009 | case elfcpp::R_SPARC_OLO10: | |
2010 | case elfcpp::R_SPARC_UA32: | |
2011 | case elfcpp::R_SPARC_32: | |
2012 | case elfcpp::R_SPARC_UA16: | |
2013 | case elfcpp::R_SPARC_16: | |
2014 | case elfcpp::R_SPARC_11: | |
2015 | case elfcpp::R_SPARC_10: | |
2016 | case elfcpp::R_SPARC_8: | |
2017 | case elfcpp::R_SPARC_7: | |
2018 | case elfcpp::R_SPARC_6: | |
2019 | case elfcpp::R_SPARC_5: | |
2020 | return Symbol::ABSOLUTE_REF; | |
2021 | ||
2022 | case elfcpp::R_SPARC_DISP8: | |
2023 | case elfcpp::R_SPARC_DISP16: | |
2024 | case elfcpp::R_SPARC_DISP32: | |
2025 | case elfcpp::R_SPARC_DISP64: | |
2026 | case elfcpp::R_SPARC_PC_HH22: | |
2027 | case elfcpp::R_SPARC_PC_HM10: | |
2028 | case elfcpp::R_SPARC_PC_LM22: | |
2029 | case elfcpp::R_SPARC_PC10: | |
2030 | case elfcpp::R_SPARC_PC22: | |
2031 | case elfcpp::R_SPARC_WDISP30: | |
2032 | case elfcpp::R_SPARC_WDISP22: | |
2033 | case elfcpp::R_SPARC_WDISP19: | |
2034 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2035 | case elfcpp::R_SPARC_WDISP10: |
95a2c8d6 RS |
2036 | return Symbol::RELATIVE_REF; |
2037 | ||
2038 | case elfcpp::R_SPARC_PLT64: | |
2039 | case elfcpp::R_SPARC_PLT32: | |
2040 | case elfcpp::R_SPARC_HIPLT22: | |
2041 | case elfcpp::R_SPARC_LOPLT10: | |
2042 | case elfcpp::R_SPARC_PCPLT10: | |
2043 | return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF; | |
2044 | ||
2045 | case elfcpp::R_SPARC_PCPLT32: | |
2046 | case elfcpp::R_SPARC_PCPLT22: | |
2047 | case elfcpp::R_SPARC_WPLT30: | |
2048 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; | |
2049 | ||
2050 | case elfcpp::R_SPARC_GOTDATA_OP: | |
2051 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2052 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2053 | case elfcpp::R_SPARC_GOT10: | |
2054 | case elfcpp::R_SPARC_GOT13: | |
2055 | case elfcpp::R_SPARC_GOT22: | |
2056 | // Absolute in GOT. | |
2057 | return Symbol::ABSOLUTE_REF; | |
2058 | ||
2059 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2060 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2061 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2062 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2063 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2064 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2065 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2066 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2067 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2068 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2069 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2070 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2071 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2072 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2073 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2074 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2075 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
2076 | case elfcpp::R_SPARC_TLS_IE_ADD: | |
2077 | return Symbol::TLS_REF; | |
2078 | ||
2079 | case elfcpp::R_SPARC_COPY: | |
2080 | case elfcpp::R_SPARC_GLOB_DAT: | |
2081 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2082 | case elfcpp::R_SPARC_JMP_IREL: |
95a2c8d6 | 2083 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2084 | case elfcpp::R_SPARC_IRELATIVE: |
95a2c8d6 RS |
2085 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2086 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2087 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2088 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2089 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2090 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2091 | default: | |
2092 | // Not expected. We will give an error later. | |
2093 | return 0; | |
2094 | } | |
2095 | } | |
2096 | ||
f5314dd5 DM |
2097 | // Generate a PLT entry slot for a call to __tls_get_addr |
2098 | template<int size, bool big_endian> | |
2099 | void | |
2100 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
2101 | Layout* layout, | |
2102 | Target_sparc<size, big_endian>* target) | |
2103 | { | |
2104 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
2105 | ||
2106 | target->make_plt_entry(symtab, layout, gsym); | |
2107 | } | |
2108 | ||
2109 | // Report an unsupported relocation against a local symbol. | |
2110 | ||
2111 | template<int size, bool big_endian> | |
2112 | void | |
2113 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
6fa2a40b | 2114 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2115 | unsigned int r_type) |
2116 | { | |
2117 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
2118 | object->name().c_str(), r_type); | |
2119 | } | |
2120 | ||
32b769e1 DM |
2121 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
2122 | // dynamic linker does not support it, issue an error. | |
2123 | ||
2124 | template<int size, bool big_endian> | |
2125 | void | |
2126 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
2127 | { | |
2128 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
2129 | ||
2130 | if (size == 64) | |
2131 | { | |
2132 | switch (r_type) | |
2133 | { | |
2134 | // These are the relocation types supported by glibc for sparc 64-bit. | |
2135 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2136 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2137 | case elfcpp::R_SPARC_COPY: |
2138 | case elfcpp::R_SPARC_64: | |
2139 | case elfcpp::R_SPARC_GLOB_DAT: | |
2140 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2141 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2142 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2143 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2144 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2145 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2146 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2147 | case elfcpp::R_SPARC_8: | |
2148 | case elfcpp::R_SPARC_16: | |
2149 | case elfcpp::R_SPARC_DISP8: | |
2150 | case elfcpp::R_SPARC_DISP16: | |
2151 | case elfcpp::R_SPARC_DISP32: | |
2152 | case elfcpp::R_SPARC_WDISP30: | |
2153 | case elfcpp::R_SPARC_LO10: | |
2154 | case elfcpp::R_SPARC_HI22: | |
2155 | case elfcpp::R_SPARC_OLO10: | |
2615994e | 2156 | case elfcpp::R_SPARC_H34: |
32b769e1 DM |
2157 | case elfcpp::R_SPARC_H44: |
2158 | case elfcpp::R_SPARC_M44: | |
2159 | case elfcpp::R_SPARC_L44: | |
2160 | case elfcpp::R_SPARC_HH22: | |
2161 | case elfcpp::R_SPARC_HM10: | |
2162 | case elfcpp::R_SPARC_LM22: | |
2163 | case elfcpp::R_SPARC_UA16: | |
2164 | case elfcpp::R_SPARC_UA32: | |
2165 | case elfcpp::R_SPARC_UA64: | |
2166 | return; | |
2167 | ||
2168 | default: | |
2169 | break; | |
2170 | } | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | switch (r_type) | |
2175 | { | |
2176 | // These are the relocation types supported by glibc for sparc 32-bit. | |
2177 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2178 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2179 | case elfcpp::R_SPARC_COPY: |
2180 | case elfcpp::R_SPARC_GLOB_DAT: | |
2181 | case elfcpp::R_SPARC_32: | |
2182 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2183 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2184 | case elfcpp::R_SPARC_TLS_DTPMOD32: |
2185 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2186 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2187 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2188 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2189 | case elfcpp::R_SPARC_8: | |
2190 | case elfcpp::R_SPARC_16: | |
2191 | case elfcpp::R_SPARC_DISP8: | |
2192 | case elfcpp::R_SPARC_DISP16: | |
2193 | case elfcpp::R_SPARC_DISP32: | |
2194 | case elfcpp::R_SPARC_LO10: | |
2195 | case elfcpp::R_SPARC_WDISP30: | |
2196 | case elfcpp::R_SPARC_HI22: | |
2197 | case elfcpp::R_SPARC_UA16: | |
2198 | case elfcpp::R_SPARC_UA32: | |
2199 | return; | |
2200 | ||
2201 | default: | |
2202 | break; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | // This prevents us from issuing more than one error per reloc | |
2207 | // section. But we can still wind up issuing more than one | |
2208 | // error per object file. | |
2209 | if (this->issued_non_pic_error_) | |
2210 | return; | |
33aea2fd | 2211 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
2212 | object->error(_("requires unsupported dynamic reloc; " |
2213 | "recompile with -fPIC")); | |
2214 | this->issued_non_pic_error_ = true; | |
2215 | return; | |
2216 | } | |
2217 | ||
8c2bf391 DM |
2218 | // Return whether we need to make a PLT entry for a relocation of the |
2219 | // given type against a STT_GNU_IFUNC symbol. | |
2220 | ||
2221 | template<int size, bool big_endian> | |
2222 | bool | |
2223 | Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( | |
2224 | Sized_relobj_file<size, big_endian>* object, | |
2225 | unsigned int r_type) | |
2226 | { | |
2227 | int flags = Scan::get_reference_flags(r_type); | |
2228 | if (flags & Symbol::TLS_REF) | |
2229 | gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), | |
2e702c99 | 2230 | object->name().c_str(), r_type); |
8c2bf391 DM |
2231 | return flags != 0; |
2232 | } | |
2233 | ||
f5314dd5 DM |
2234 | // Scan a relocation for a local symbol. |
2235 | ||
2236 | template<int size, bool big_endian> | |
2237 | inline void | |
2238 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
2239 | Symbol_table* symtab, |
2240 | Layout* layout, | |
2241 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2242 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2243 | unsigned int data_shndx, |
2244 | Output_section* output_section, | |
2245 | const elfcpp::Rela<size, big_endian>& reloc, | |
2246 | unsigned int r_type, | |
bfdfa4cd AM |
2247 | const elfcpp::Sym<size, big_endian>& lsym, |
2248 | bool is_discarded) | |
f5314dd5 | 2249 | { |
bfdfa4cd AM |
2250 | if (is_discarded) |
2251 | return; | |
2252 | ||
8c2bf391 | 2253 | bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2254 | unsigned int orig_r_type = r_type; |
f5314dd5 | 2255 | r_type &= 0xff; |
8c2bf391 DM |
2256 | |
2257 | if (is_ifunc | |
2258 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2259 | { | |
2260 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2261 | target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); | |
2262 | } | |
2263 | ||
f5314dd5 DM |
2264 | switch (r_type) |
2265 | { | |
2266 | case elfcpp::R_SPARC_NONE: | |
2267 | case elfcpp::R_SPARC_REGISTER: | |
2268 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2269 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2270 | break; | |
2271 | ||
2272 | case elfcpp::R_SPARC_64: | |
2273 | case elfcpp::R_SPARC_32: | |
2274 | // If building a shared library (or a position-independent | |
2275 | // executable), we need to create a dynamic relocation for | |
2276 | // this location. The relocation applied at link time will | |
2277 | // apply the link-time value, so we flag the location with | |
2278 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
2279 | // relocate it easily. | |
2280 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2281 | { |
2282 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2283 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2284 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2285 | output_section, data_shndx, |
2286 | reloc.get_r_offset(), | |
8c2bf391 | 2287 | reloc.get_r_addend(), is_ifunc); |
2e702c99 | 2288 | } |
f5314dd5 DM |
2289 | break; |
2290 | ||
2291 | case elfcpp::R_SPARC_HIX22: | |
2292 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2293 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2294 | case elfcpp::R_SPARC_H44: |
2295 | case elfcpp::R_SPARC_M44: | |
2296 | case elfcpp::R_SPARC_L44: | |
2297 | case elfcpp::R_SPARC_HH22: | |
2298 | case elfcpp::R_SPARC_HM10: | |
2299 | case elfcpp::R_SPARC_LM22: | |
2300 | case elfcpp::R_SPARC_UA64: | |
2301 | case elfcpp::R_SPARC_UA32: | |
2302 | case elfcpp::R_SPARC_UA16: | |
2303 | case elfcpp::R_SPARC_HI22: | |
2304 | case elfcpp::R_SPARC_LO10: | |
2305 | case elfcpp::R_SPARC_OLO10: | |
2306 | case elfcpp::R_SPARC_16: | |
2307 | case elfcpp::R_SPARC_11: | |
2308 | case elfcpp::R_SPARC_10: | |
2309 | case elfcpp::R_SPARC_8: | |
2310 | case elfcpp::R_SPARC_7: | |
2311 | case elfcpp::R_SPARC_6: | |
2312 | case elfcpp::R_SPARC_5: | |
2313 | // If building a shared library (or a position-independent | |
2314 | // executable), we need to create a dynamic relocation for | |
2315 | // this location. | |
2316 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2317 | { |
2318 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2319 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
32b769e1 DM |
2320 | |
2321 | check_non_pic(object, r_type); | |
2e702c99 RM |
2322 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
2323 | { | |
2324 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, | |
f5314dd5 DM |
2325 | data_shndx, reloc.get_r_offset(), |
2326 | reloc.get_r_addend()); | |
2e702c99 RM |
2327 | } |
2328 | else | |
2329 | { | |
2330 | gold_assert(lsym.get_st_value() == 0); | |
0da6fa6c DM |
2331 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
2332 | output_section, data_shndx, | |
2333 | reloc.get_r_offset(), | |
2334 | reloc.get_r_addend()); | |
2e702c99 RM |
2335 | } |
2336 | } | |
f5314dd5 DM |
2337 | break; |
2338 | ||
2339 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 2340 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
2341 | case elfcpp::R_SPARC_WDISP22: |
2342 | case elfcpp::R_SPARC_WDISP19: | |
2343 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2344 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2345 | case elfcpp::R_SPARC_DISP8: |
2346 | case elfcpp::R_SPARC_DISP16: | |
2347 | case elfcpp::R_SPARC_DISP32: | |
2348 | case elfcpp::R_SPARC_DISP64: | |
2349 | case elfcpp::R_SPARC_PC10: | |
2350 | case elfcpp::R_SPARC_PC22: | |
2351 | break; | |
2352 | ||
024c4466 DM |
2353 | case elfcpp::R_SPARC_GOTDATA_OP: |
2354 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2355 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
2356 | // We will optimize this into a GOT relative relocation |
2357 | // and code transform the GOT load into an addition. | |
2358 | break; | |
2359 | ||
f5314dd5 DM |
2360 | case elfcpp::R_SPARC_GOT10: |
2361 | case elfcpp::R_SPARC_GOT13: | |
2362 | case elfcpp::R_SPARC_GOT22: | |
2363 | { | |
2e702c99 RM |
2364 | // The symbol requires a GOT entry. |
2365 | Output_data_got<size, big_endian>* got; | |
2366 | unsigned int r_sym; | |
f5314dd5 DM |
2367 | |
2368 | got = target->got_section(symtab, layout); | |
2369 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2370 | ||
2371 | // If we are generating a shared object, we need to add a | |
2372 | // dynamic relocation for this symbol's GOT entry. | |
2373 | if (parameters->options().output_is_position_independent()) | |
2374 | { | |
2375 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
2376 | { | |
2377 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
8c2bf391 | 2378 | unsigned int off = got->add_constant(0); |
f5314dd5 DM |
2379 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); |
2380 | rela_dyn->add_local_relative(object, r_sym, | |
2381 | elfcpp::R_SPARC_RELATIVE, | |
8c2bf391 | 2382 | got, off, 0, is_ifunc); |
f5314dd5 DM |
2383 | } |
2384 | } | |
2385 | else | |
2386 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
2387 | } | |
2388 | break; | |
2389 | ||
2390 | // These are initial TLS relocs, which are expected when | |
2391 | // linking. | |
2392 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2393 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2394 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2395 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2396 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2397 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2398 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2399 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2400 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2401 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2402 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2403 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2404 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2405 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2406 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2407 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2408 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
2409 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2410 | { | |
2411 | bool output_is_shared = parameters->options().shared(); | |
2412 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2413 | = optimize_tls_reloc(!output_is_shared, r_type); |
f5314dd5 DM |
2414 | switch (r_type) |
2415 | { | |
2416 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2417 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2418 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2419 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2420 | if (optimized_type == tls::TLSOPT_NONE) | |
2421 | { | |
2e702c99 RM |
2422 | // Create a pair of GOT entries for the module index and |
2423 | // dtv-relative offset. | |
2424 | Output_data_got<size, big_endian>* got | |
2425 | = target->got_section(symtab, layout); | |
2426 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
2427 | unsigned int shndx = lsym.get_st_shndx(); |
2428 | bool is_ordinary; | |
2429 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
2430 | if (!is_ordinary) | |
2431 | object->error(_("local symbol %u has bad shndx %u"), | |
2432 | r_sym, shndx); | |
2433 | else | |
2e702c99 | 2434 | got->add_local_pair_with_rel(object, r_sym, |
83896202 ILT |
2435 | lsym.get_st_shndx(), |
2436 | GOT_TYPE_TLS_PAIR, | |
2437 | target->rela_dyn_section(layout), | |
2438 | (size == 64 | |
2439 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
bd73a62d | 2440 | : elfcpp::R_SPARC_TLS_DTPMOD32)); |
f5314dd5 DM |
2441 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
2442 | generate_tls_call(symtab, layout, target); | |
2443 | } | |
2444 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2445 | unsupported_reloc_local(object, r_type); | |
2446 | break; | |
2447 | ||
2448 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2449 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2450 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2451 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2452 | if (optimized_type == tls::TLSOPT_NONE) | |
2453 | { | |
2454 | // Create a GOT entry for the module index. | |
2455 | target->got_mod_index_entry(symtab, layout, object); | |
2456 | ||
2457 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2458 | generate_tls_call(symtab, layout, target); | |
2459 | } | |
2460 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2461 | unsupported_reloc_local(object, r_type); | |
2462 | break; | |
2463 | ||
2464 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2465 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2466 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2467 | break; | |
2468 | ||
2469 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2470 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2471 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2472 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2473 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2474 | layout->set_has_static_tls(); |
2475 | if (optimized_type == tls::TLSOPT_NONE) | |
2476 | { | |
2477 | // Create a GOT entry for the tp-relative offset. | |
2478 | Output_data_got<size, big_endian>* got | |
2479 | = target->got_section(symtab, layout); | |
2480 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2481 | ||
2482 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
2483 | { | |
2484 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2485 | unsigned int off = got->add_constant(0); |
2486 | ||
2487 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 2488 | |
0da6fa6c DM |
2489 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
2490 | (size == 64 ? | |
2491 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2492 | elfcpp::R_SPARC_TLS_TPOFF32), | |
2493 | got, off, 0); | |
f5314dd5 DM |
2494 | } |
2495 | } | |
2496 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2497 | unsupported_reloc_local(object, r_type); | |
2498 | break; | |
2499 | ||
2500 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
2501 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2502 | layout->set_has_static_tls(); | |
2503 | if (output_is_shared) | |
2504 | { | |
2e702c99 RM |
2505 | // We need to create a dynamic relocation. |
2506 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
2507 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2508 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2509 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, | |
0da6fa6c DM |
2510 | output_section, data_shndx, |
2511 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
2512 | } |
2513 | break; | |
2514 | } | |
2515 | } | |
2516 | break; | |
2517 | ||
2518 | // These are relocations which should only be seen by the | |
2519 | // dynamic linker, and should never be seen here. | |
2520 | case elfcpp::R_SPARC_COPY: | |
2521 | case elfcpp::R_SPARC_GLOB_DAT: | |
2522 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2523 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2524 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2525 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2526 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2527 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2528 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2529 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2530 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2531 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2532 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2533 | object->name().c_str(), r_type); | |
2534 | break; | |
2535 | ||
2536 | default: | |
2537 | unsupported_reloc_local(object, r_type); | |
2538 | break; | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | // Report an unsupported relocation against a global symbol. | |
2543 | ||
2544 | template<int size, bool big_endian> | |
2545 | void | |
2546 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
6fa2a40b | 2547 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2548 | unsigned int r_type, |
2549 | Symbol* gsym) | |
2550 | { | |
2551 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
2552 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
2553 | } | |
2554 | ||
2555 | // Scan a relocation for a global symbol. | |
2556 | ||
2557 | template<int size, bool big_endian> | |
2558 | inline void | |
2559 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2560 | Symbol_table* symtab, |
2561 | Layout* layout, | |
2562 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2563 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2564 | unsigned int data_shndx, |
2565 | Output_section* output_section, | |
2566 | const elfcpp::Rela<size, big_endian>& reloc, | |
2567 | unsigned int r_type, | |
2568 | Symbol* gsym) | |
2569 | { | |
2570 | unsigned int orig_r_type = r_type; | |
8c2bf391 | 2571 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2572 | |
9efe6174 ILT |
2573 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2574 | // section. We check here to avoid creating a dynamic reloc against | |
2575 | // _GLOBAL_OFFSET_TABLE_. | |
2576 | if (!target->has_got_section() | |
2577 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2578 | target->got_section(symtab, layout); | |
2579 | ||
f5314dd5 | 2580 | r_type &= 0xff; |
8c2bf391 DM |
2581 | |
2582 | // A STT_GNU_IFUNC symbol may require a PLT entry. | |
2583 | if (is_ifunc | |
2584 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2585 | target->make_plt_entry(symtab, layout, gsym); | |
2586 | ||
f5314dd5 DM |
2587 | switch (r_type) |
2588 | { | |
2589 | case elfcpp::R_SPARC_NONE: | |
2590 | case elfcpp::R_SPARC_REGISTER: | |
2591 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2592 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2593 | break; | |
2594 | ||
2595 | case elfcpp::R_SPARC_PLT64: | |
2596 | case elfcpp::R_SPARC_PLT32: | |
2597 | case elfcpp::R_SPARC_HIPLT22: | |
2598 | case elfcpp::R_SPARC_LOPLT10: | |
2599 | case elfcpp::R_SPARC_PCPLT32: | |
2600 | case elfcpp::R_SPARC_PCPLT22: | |
2601 | case elfcpp::R_SPARC_PCPLT10: | |
2602 | case elfcpp::R_SPARC_WPLT30: | |
2603 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2604 | // Otherwise we need a PLT entry. | |
2605 | if (gsym->final_value_is_known()) | |
2606 | break; | |
2607 | // If building a shared library, we can also skip the PLT entry | |
2608 | // if the symbol is defined in the output file and is protected | |
2609 | // or hidden. | |
2610 | if (gsym->is_defined() | |
2e702c99 RM |
2611 | && !gsym->is_from_dynobj() |
2612 | && !gsym->is_preemptible()) | |
f5314dd5 DM |
2613 | break; |
2614 | target->make_plt_entry(symtab, layout, gsym); | |
2615 | break; | |
2616 | ||
2617 | case elfcpp::R_SPARC_DISP8: | |
2618 | case elfcpp::R_SPARC_DISP16: | |
2619 | case elfcpp::R_SPARC_DISP32: | |
2620 | case elfcpp::R_SPARC_DISP64: | |
2621 | case elfcpp::R_SPARC_PC_HH22: | |
2622 | case elfcpp::R_SPARC_PC_HM10: | |
2623 | case elfcpp::R_SPARC_PC_LM22: | |
2624 | case elfcpp::R_SPARC_PC10: | |
2625 | case elfcpp::R_SPARC_PC22: | |
2626 | case elfcpp::R_SPARC_WDISP30: | |
2627 | case elfcpp::R_SPARC_WDISP22: | |
2628 | case elfcpp::R_SPARC_WDISP19: | |
2629 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2630 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2631 | { |
2632 | if (gsym->needs_plt_entry()) | |
2633 | target->make_plt_entry(symtab, layout, gsym); | |
2634 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2635 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2636 | { |
966d4097 | 2637 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2638 | { |
12c0daef | 2639 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2640 | data_shndx, output_section, gsym, |
2641 | reloc); | |
2642 | } | |
2643 | else | |
2644 | { | |
2645 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2646 | check_non_pic(object, r_type); |
f5314dd5 DM |
2647 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2648 | data_shndx, reloc.get_r_offset(), | |
2649 | reloc.get_r_addend()); | |
2650 | } | |
2651 | } | |
2652 | } | |
2653 | break; | |
2654 | ||
2655 | case elfcpp::R_SPARC_UA64: | |
2656 | case elfcpp::R_SPARC_64: | |
2657 | case elfcpp::R_SPARC_HIX22: | |
2658 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2659 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2660 | case elfcpp::R_SPARC_H44: |
2661 | case elfcpp::R_SPARC_M44: | |
2662 | case elfcpp::R_SPARC_L44: | |
2663 | case elfcpp::R_SPARC_HH22: | |
2664 | case elfcpp::R_SPARC_HM10: | |
2665 | case elfcpp::R_SPARC_LM22: | |
2666 | case elfcpp::R_SPARC_HI22: | |
2667 | case elfcpp::R_SPARC_LO10: | |
2668 | case elfcpp::R_SPARC_OLO10: | |
2669 | case elfcpp::R_SPARC_UA32: | |
2670 | case elfcpp::R_SPARC_32: | |
2671 | case elfcpp::R_SPARC_UA16: | |
2672 | case elfcpp::R_SPARC_16: | |
2673 | case elfcpp::R_SPARC_11: | |
2674 | case elfcpp::R_SPARC_10: | |
2675 | case elfcpp::R_SPARC_8: | |
2676 | case elfcpp::R_SPARC_7: | |
2677 | case elfcpp::R_SPARC_6: | |
2678 | case elfcpp::R_SPARC_5: | |
2679 | { | |
2e702c99 RM |
2680 | // Make a PLT entry if necessary. |
2681 | if (gsym->needs_plt_entry()) | |
2682 | { | |
2683 | target->make_plt_entry(symtab, layout, gsym); | |
2684 | // Since this is not a PC-relative relocation, we may be | |
2685 | // taking the address of a function. In that case we need to | |
2686 | // set the entry in the dynamic symbol table to the address of | |
2687 | // the PLT entry. | |
2688 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2689 | gsym->set_needs_dynsym_value(); | |
2690 | } | |
2691 | // Make a dynamic relocation if necessary. | |
2692 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) | |
2693 | { | |
0da6fa6c DM |
2694 | unsigned int r_off = reloc.get_r_offset(); |
2695 | ||
2696 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 2697 | // for dwarf2 cfi directives. |
0da6fa6c DM |
2698 | switch (r_type) |
2699 | { | |
2700 | case elfcpp::R_SPARC_16: | |
2701 | if (r_off & 0x1) | |
2702 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2703 | break; | |
2704 | case elfcpp::R_SPARC_32: | |
2705 | if (r_off & 0x3) | |
2706 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2707 | break; | |
2708 | case elfcpp::R_SPARC_64: | |
2709 | if (r_off & 0x7) | |
2710 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2711 | break; | |
2712 | case elfcpp::R_SPARC_UA16: | |
2713 | if (!(r_off & 0x1)) | |
2714 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2715 | break; | |
2716 | case elfcpp::R_SPARC_UA32: | |
2717 | if (!(r_off & 0x3)) | |
2718 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2719 | break; | |
2720 | case elfcpp::R_SPARC_UA64: | |
2721 | if (!(r_off & 0x7)) | |
2722 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2723 | break; | |
2724 | } | |
2725 | ||
2e702c99 RM |
2726 | if (gsym->may_need_copy_reloc()) |
2727 | { | |
2728 | target->copy_reloc(symtab, layout, object, | |
2729 | data_shndx, output_section, gsym, reloc); | |
2730 | } | |
8c2bf391 DM |
2731 | else if (((size == 64 && r_type == elfcpp::R_SPARC_64) |
2732 | || (size == 32 && r_type == elfcpp::R_SPARC_32)) | |
2733 | && gsym->type() == elfcpp::STT_GNU_IFUNC | |
2734 | && gsym->can_use_relative_reloc(false) | |
2735 | && !gsym->is_from_dynobj() | |
2736 | && !gsym->is_undefined() | |
2737 | && !gsym->is_preemptible()) | |
2738 | { | |
2739 | // Use an IRELATIVE reloc for a locally defined | |
2740 | // STT_GNU_IFUNC symbol. This makes a function | |
2741 | // address in a PIE executable match the address in a | |
2742 | // shared library that it links against. | |
2743 | Reloc_section* rela_dyn = | |
2744 | target->rela_ifunc_section(layout); | |
2745 | unsigned int r_type = elfcpp::R_SPARC_IRELATIVE; | |
2746 | rela_dyn->add_symbolless_global_addend(gsym, r_type, | |
2747 | output_section, object, | |
2748 | data_shndx, | |
2749 | reloc.get_r_offset(), | |
2750 | reloc.get_r_addend()); | |
2751 | } | |
2e702c99 | 2752 | else if ((r_type == elfcpp::R_SPARC_32 |
f5314dd5 | 2753 | || r_type == elfcpp::R_SPARC_64) |
2e702c99 RM |
2754 | && gsym->can_use_relative_reloc(false)) |
2755 | { | |
2756 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2757 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2758 | output_section, object, |
2759 | data_shndx, reloc.get_r_offset(), | |
8c2bf391 | 2760 | reloc.get_r_addend(), is_ifunc); |
2e702c99 RM |
2761 | } |
2762 | else | |
2763 | { | |
2764 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
f5314dd5 | 2765 | |
32b769e1 | 2766 | check_non_pic(object, r_type); |
0da6fa6c DM |
2767 | if (gsym->is_from_dynobj() |
2768 | || gsym->is_undefined() | |
2769 | || gsym->is_preemptible()) | |
2770 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2771 | object, data_shndx, | |
2772 | reloc.get_r_offset(), | |
2773 | reloc.get_r_addend()); | |
2774 | else | |
2775 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2776 | output_section, | |
2777 | object, data_shndx, | |
2778 | reloc.get_r_offset(), | |
2779 | reloc.get_r_addend()); | |
2e702c99 RM |
2780 | } |
2781 | } | |
f5314dd5 DM |
2782 | } |
2783 | break; | |
2784 | ||
024c4466 DM |
2785 | case elfcpp::R_SPARC_GOTDATA_OP: |
2786 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2787 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 | 2788 | if (gsym->is_defined() |
2e702c99 RM |
2789 | && !gsym->is_from_dynobj() |
2790 | && !gsym->is_preemptible() | |
2a1079e8 DM |
2791 | && !is_ifunc) |
2792 | { | |
2793 | // We will optimize this into a GOT relative relocation | |
2794 | // and code transform the GOT load into an addition. | |
2795 | break; | |
2796 | } | |
f5314dd5 DM |
2797 | case elfcpp::R_SPARC_GOT10: |
2798 | case elfcpp::R_SPARC_GOT13: | |
2799 | case elfcpp::R_SPARC_GOT22: | |
2800 | { | |
2e702c99 RM |
2801 | // The symbol requires a GOT entry. |
2802 | Output_data_got<size, big_endian>* got; | |
f5314dd5 DM |
2803 | |
2804 | got = target->got_section(symtab, layout); | |
2e702c99 | 2805 | if (gsym->final_value_is_known()) |
8c2bf391 DM |
2806 | { |
2807 | // For a STT_GNU_IFUNC symbol we want the PLT address. | |
2808 | if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
2809 | got->add_global_plt(gsym, GOT_TYPE_STANDARD); | |
2810 | else | |
2811 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2812 | } | |
2e702c99 RM |
2813 | else |
2814 | { | |
2815 | // If this symbol is not fully resolved, we need to add a | |
2816 | // GOT entry with a dynamic relocation. | |
8c2bf391 DM |
2817 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
2818 | ||
2819 | // Use a GLOB_DAT rather than a RELATIVE reloc if: | |
2820 | // | |
2821 | // 1) The symbol may be defined in some other module. | |
2822 | // | |
2823 | // 2) We are building a shared library and this is a | |
2824 | // protected symbol; using GLOB_DAT means that the dynamic | |
2825 | // linker can use the address of the PLT in the main | |
2826 | // executable when appropriate so that function address | |
2827 | // comparisons work. | |
2828 | // | |
2829 | // 3) This is a STT_GNU_IFUNC symbol in position dependent | |
2830 | // code, again so that function address comparisons work. | |
2e702c99 RM |
2831 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
2832 | if (gsym->is_from_dynobj() | |
2833 | || gsym->is_undefined() | |
2834 | || gsym->is_preemptible() | |
8c2bf391 DM |
2835 | || (gsym->visibility() == elfcpp::STV_PROTECTED |
2836 | && parameters->options().shared()) | |
2837 | || (gsym->type() == elfcpp::STT_GNU_IFUNC | |
2838 | && parameters->options().output_is_position_independent() | |
2839 | && !gsym->is_forced_local())) | |
2840 | { | |
2841 | unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT; | |
2842 | ||
2843 | // If this symbol is forced local, this relocation will | |
2844 | // not work properly. That's because ld.so on sparc | |
2845 | // (and 32-bit powerpc) expects st_value in the r_addend | |
2846 | // of relocations for STB_LOCAL symbols. Curiously the | |
2847 | // BFD linker does not promote global hidden symbols to be | |
2848 | // STB_LOCAL in the dynamic symbol table like Gold does. | |
2849 | gold_assert(!gsym->is_forced_local()); | |
2850 | got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2851 | r_type); | |
2852 | } | |
2e702c99 RM |
2853 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) |
2854 | { | |
f5314dd5 DM |
2855 | unsigned int off = got->add_constant(0); |
2856 | ||
2857 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
8c2bf391 DM |
2858 | if (is_ifunc) |
2859 | { | |
2860 | // Tell the dynamic linker to use the PLT address | |
2861 | // when resolving relocations. | |
2862 | if (gsym->is_from_dynobj() | |
2863 | && !parameters->options().shared()) | |
2864 | gsym->set_needs_dynsym_value(); | |
2865 | } | |
f5314dd5 | 2866 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, |
8c2bf391 | 2867 | got, off, 0, is_ifunc); |
f5314dd5 | 2868 | } |
2e702c99 | 2869 | } |
f5314dd5 DM |
2870 | } |
2871 | break; | |
2872 | ||
2873 | // These are initial tls relocs, which are expected when | |
2874 | // linking. | |
2875 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2876 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2877 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2878 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2879 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2880 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2881 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2882 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2883 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2884 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2885 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2886 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2887 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2888 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2889 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2890 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2891 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2892 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2893 | { |
2894 | const bool is_final = gsym->final_value_is_known(); | |
2895 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2896 | = optimize_tls_reloc(is_final, r_type); |
f5314dd5 DM |
2897 | switch (r_type) |
2898 | { | |
2899 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2900 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2901 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2902 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2903 | if (optimized_type == tls::TLSOPT_NONE) | |
2904 | { | |
2e702c99 RM |
2905 | // Create a pair of GOT entries for the module index and |
2906 | // dtv-relative offset. | |
2907 | Output_data_got<size, big_endian>* got | |
2908 | = target->got_section(symtab, layout); | |
2909 | got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, | |
83896202 ILT |
2910 | target->rela_dyn_section(layout), |
2911 | (size == 64 | |
2912 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2913 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2914 | (size == 64 | |
2915 | ? elfcpp::R_SPARC_TLS_DTPOFF64 | |
2916 | : elfcpp::R_SPARC_TLS_DTPOFF32)); | |
f5314dd5 DM |
2917 | |
2918 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2919 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2920 | generate_tls_call(symtab, layout, target); | |
2921 | } | |
2922 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2923 | { | |
2e702c99 RM |
2924 | // Create a GOT entry for the tp-relative offset. |
2925 | Output_data_got<size, big_endian>* got | |
2926 | = target->got_section(symtab, layout); | |
2927 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, | |
83896202 ILT |
2928 | target->rela_dyn_section(layout), |
2929 | (size == 64 ? | |
2930 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2931 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2932 | } |
2933 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2934 | unsupported_reloc_global(object, r_type, gsym); | |
2935 | break; | |
2936 | ||
2937 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2938 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2939 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2940 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2941 | if (optimized_type == tls::TLSOPT_NONE) | |
2942 | { | |
2943 | // Create a GOT entry for the module index. | |
2944 | target->got_mod_index_entry(symtab, layout, object); | |
2945 | ||
2946 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2947 | generate_tls_call(symtab, layout, target); | |
2948 | } | |
2949 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2950 | unsupported_reloc_global(object, r_type, gsym); | |
2951 | break; | |
2952 | ||
2953 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2954 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2955 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2956 | break; | |
2957 | ||
2958 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2959 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2960 | layout->set_has_static_tls(); | |
2961 | if (parameters->options().shared()) | |
2962 | { | |
2963 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2964 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2965 | output_section, object, | |
2966 | data_shndx, reloc.get_r_offset(), | |
2967 | 0); | |
f5314dd5 DM |
2968 | } |
2969 | break; | |
2970 | ||
2971 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2972 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2973 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2974 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2975 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2976 | layout->set_has_static_tls(); |
2977 | if (optimized_type == tls::TLSOPT_NONE) | |
2978 | { | |
2979 | // Create a GOT entry for the tp-relative offset. | |
2980 | Output_data_got<size, big_endian>* got | |
2981 | = target->got_section(symtab, layout); | |
83896202 ILT |
2982 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
2983 | target->rela_dyn_section(layout), | |
2984 | (size == 64 | |
2985 | ? elfcpp::R_SPARC_TLS_TPOFF64 | |
2986 | : elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2987 | } |
2988 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2989 | unsupported_reloc_global(object, r_type, gsym); | |
2990 | break; | |
2991 | } | |
2992 | } | |
2993 | break; | |
2994 | ||
2995 | // These are relocations which should only be seen by the | |
2996 | // dynamic linker, and should never be seen here. | |
2997 | case elfcpp::R_SPARC_COPY: | |
2998 | case elfcpp::R_SPARC_GLOB_DAT: | |
2999 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 3000 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 3001 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 3002 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3003 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
3004 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3005 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3006 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3007 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3008 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3009 | gold_error(_("%s: unexpected reloc %u in object file"), | |
3010 | object->name().c_str(), r_type); | |
3011 | break; | |
3012 | ||
3013 | default: | |
3014 | unsupported_reloc_global(object, r_type, gsym); | |
3015 | break; | |
3016 | } | |
3017 | } | |
3018 | ||
6d03d481 ST |
3019 | // Process relocations for gc. |
3020 | ||
3021 | template<int size, bool big_endian> | |
3022 | void | |
3023 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
3024 | Symbol_table* symtab, |
3025 | Layout* layout, | |
6fa2a40b | 3026 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
3027 | unsigned int data_shndx, |
3028 | unsigned int, | |
3029 | const unsigned char* prelocs, | |
3030 | size_t reloc_count, | |
3031 | Output_section* output_section, | |
3032 | bool needs_special_offset_handling, | |
3033 | size_t local_symbol_count, | |
3034 | const unsigned char* plocal_symbols) | |
3035 | { | |
3036 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3037 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 3038 | |
41cbeecc | 3039 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 3040 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
3041 | symtab, |
3042 | layout, | |
3043 | this, | |
3044 | object, | |
3045 | data_shndx, | |
3046 | prelocs, | |
3047 | reloc_count, | |
3048 | output_section, | |
3049 | needs_special_offset_handling, | |
3050 | local_symbol_count, | |
3051 | plocal_symbols); | |
3052 | } | |
3053 | ||
f5314dd5 DM |
3054 | // Scan relocations for a section. |
3055 | ||
3056 | template<int size, bool big_endian> | |
3057 | void | |
3058 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
3059 | Symbol_table* symtab, |
3060 | Layout* layout, | |
6fa2a40b | 3061 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
3062 | unsigned int data_shndx, |
3063 | unsigned int sh_type, | |
3064 | const unsigned char* prelocs, | |
3065 | size_t reloc_count, | |
3066 | Output_section* output_section, | |
3067 | bool needs_special_offset_handling, | |
3068 | size_t local_symbol_count, | |
3069 | const unsigned char* plocal_symbols) | |
3070 | { | |
3071 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3072 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
3073 | |
3074 | if (sh_type == elfcpp::SHT_REL) | |
3075 | { | |
3076 | gold_error(_("%s: unsupported REL reloc section"), | |
3077 | object->name().c_str()); | |
3078 | return; | |
3079 | } | |
3080 | ||
2ea97941 | 3081 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
3082 | symtab, |
3083 | layout, | |
3084 | this, | |
3085 | object, | |
3086 | data_shndx, | |
3087 | prelocs, | |
3088 | reloc_count, | |
3089 | output_section, | |
3090 | needs_special_offset_handling, | |
3091 | local_symbol_count, | |
3092 | plocal_symbols); | |
3093 | } | |
3094 | ||
3095 | // Finalize the sections. | |
3096 | ||
3097 | template<int size, bool big_endian> | |
3098 | void | |
d5b40221 DK |
3099 | Target_sparc<size, big_endian>::do_finalize_sections( |
3100 | Layout* layout, | |
f59f41f3 | 3101 | const Input_objects*, |
8c2bf391 | 3102 | Symbol_table* symtab) |
f5314dd5 | 3103 | { |
8c2bf391 DM |
3104 | if (this->plt_) |
3105 | this->plt_->emit_pending_ifunc_relocs(); | |
3106 | ||
f5314dd5 | 3107 | // Fill in some more dynamic tags. |
ea715a34 ILT |
3108 | const Reloc_section* rel_plt = (this->plt_ == NULL |
3109 | ? NULL | |
3110 | : this->plt_->rel_plt()); | |
3111 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 3112 | this->rela_dyn_, true, true); |
f5314dd5 DM |
3113 | |
3114 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
3115 | // relocs. | |
12c0daef ILT |
3116 | if (this->copy_relocs_.any_saved_relocs()) |
3117 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
8c2bf391 DM |
3118 | |
3119 | if (parameters->doing_static_link() | |
3120 | && (this->plt_ == NULL || !this->plt_->has_ifunc_section())) | |
3121 | { | |
3122 | // If linking statically, make sure that the __rela_iplt symbols | |
3123 | // were defined if necessary, even if we didn't create a PLT. | |
3124 | static const Define_symbol_in_segment syms[] = | |
3125 | { | |
3126 | { | |
3127 | "__rela_iplt_start", // name | |
3128 | elfcpp::PT_LOAD, // segment_type | |
3129 | elfcpp::PF_W, // segment_flags_set | |
3130 | elfcpp::PF(0), // segment_flags_clear | |
3131 | 0, // value | |
3132 | 0, // size | |
3133 | elfcpp::STT_NOTYPE, // type | |
3134 | elfcpp::STB_GLOBAL, // binding | |
3135 | elfcpp::STV_HIDDEN, // visibility | |
3136 | 0, // nonvis | |
3137 | Symbol::SEGMENT_START, // offset_from_base | |
3138 | true // only_if_ref | |
3139 | }, | |
3140 | { | |
3141 | "__rela_iplt_end", // name | |
3142 | elfcpp::PT_LOAD, // segment_type | |
3143 | elfcpp::PF_W, // segment_flags_set | |
3144 | elfcpp::PF(0), // segment_flags_clear | |
3145 | 0, // value | |
3146 | 0, // size | |
3147 | elfcpp::STT_NOTYPE, // type | |
3148 | elfcpp::STB_GLOBAL, // binding | |
3149 | elfcpp::STV_HIDDEN, // visibility | |
3150 | 0, // nonvis | |
3151 | Symbol::SEGMENT_START, // offset_from_base | |
3152 | true // only_if_ref | |
3153 | } | |
3154 | }; | |
3155 | ||
3156 | symtab->define_symbols(layout, 2, syms, | |
3157 | layout->script_options()->saw_sections_clause()); | |
3158 | } | |
f5314dd5 DM |
3159 | } |
3160 | ||
3161 | // Perform a relocation. | |
3162 | ||
3163 | template<int size, bool big_endian> | |
3164 | inline bool | |
3165 | Target_sparc<size, big_endian>::Relocate::relocate( | |
3166 | const Relocate_info<size, big_endian>* relinfo, | |
3167 | Target_sparc* target, | |
031cdbed | 3168 | Output_section*, |
f5314dd5 DM |
3169 | size_t relnum, |
3170 | const elfcpp::Rela<size, big_endian>& rela, | |
3171 | unsigned int r_type, | |
3172 | const Sized_symbol<size>* gsym, | |
3173 | const Symbol_value<size>* psymval, | |
3174 | unsigned char* view, | |
3175 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3176 | section_size_type view_size) | |
3177 | { | |
2a1079e8 | 3178 | bool orig_is_ifunc = psymval->is_ifunc_symbol(); |
f5314dd5 DM |
3179 | r_type &= 0xff; |
3180 | ||
3181 | if (this->ignore_gd_add_) | |
3182 | { | |
3183 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
3184 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3185 | _("missing expected TLS relocation")); | |
3186 | else | |
3187 | { | |
3188 | this->ignore_gd_add_ = false; | |
3189 | return false; | |
3190 | } | |
3191 | } | |
0e804863 ILT |
3192 | |
3193 | if (view == NULL) | |
3194 | return true; | |
3195 | ||
abd242a9 DM |
3196 | if (this->reloc_adjust_addr_ == view) |
3197 | view -= 4; | |
f5314dd5 DM |
3198 | |
3199 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
8c2bf391 | 3200 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3201 | |
3202 | // Pick the value to use for symbols defined in shared objects. | |
3203 | Symbol_value<size> symval; | |
3204 | if (gsym != NULL | |
95a2c8d6 | 3205 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
f5314dd5 | 3206 | { |
2ea97941 | 3207 | elfcpp::Elf_Xword value; |
f5314dd5 | 3208 | |
19fec8c1 | 3209 | value = target->plt_address_for_global(gsym); |
f5314dd5 | 3210 | |
2ea97941 | 3211 | symval.set_output_value(value); |
f5314dd5 DM |
3212 | |
3213 | psymval = &symval; | |
3214 | } | |
2a1079e8 | 3215 | else if (gsym == NULL && orig_is_ifunc) |
8c2bf391 DM |
3216 | { |
3217 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3218 | if (object->local_has_plt_offset(r_sym)) | |
3219 | { | |
19fec8c1 | 3220 | symval.set_output_value(target->plt_address_for_local(object, r_sym)); |
8c2bf391 DM |
3221 | psymval = &symval; |
3222 | } | |
3223 | } | |
f5314dd5 | 3224 | |
f5314dd5 DM |
3225 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); |
3226 | ||
3227 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
3228 | // pointer points to the beginning, not the end, of the table. | |
3229 | // So we just use the plain offset. | |
f5314dd5 | 3230 | unsigned int got_offset = 0; |
2a1079e8 | 3231 | bool gdop_valid = false; |
f5314dd5 DM |
3232 | switch (r_type) |
3233 | { | |
024c4466 DM |
3234 | case elfcpp::R_SPARC_GOTDATA_OP: |
3235 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
3236 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3237 | // If this is local, we did not create a GOT entry because we |
3238 | // intend to transform this into a GOT relative relocation. | |
3239 | if (gsym == NULL | |
3240 | || (gsym->is_defined() | |
3241 | && !gsym->is_from_dynobj() | |
3242 | && !gsym->is_preemptible() | |
3243 | && !orig_is_ifunc)) | |
3244 | { | |
3245 | got_offset = psymval->value(object, 0) - target->got_address(); | |
3246 | gdop_valid = true; | |
3247 | break; | |
3248 | } | |
f5314dd5 DM |
3249 | case elfcpp::R_SPARC_GOT10: |
3250 | case elfcpp::R_SPARC_GOT13: | |
3251 | case elfcpp::R_SPARC_GOT22: | |
3252 | if (gsym != NULL) | |
2e702c99 RM |
3253 | { |
3254 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
3255 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
3256 | } | |
f5314dd5 | 3257 | else |
2e702c99 RM |
3258 | { |
3259 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3260 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
3261 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
3262 | } | |
f5314dd5 DM |
3263 | break; |
3264 | ||
3265 | default: | |
3266 | break; | |
3267 | } | |
3268 | ||
3269 | switch (r_type) | |
3270 | { | |
3271 | case elfcpp::R_SPARC_NONE: | |
3272 | case elfcpp::R_SPARC_REGISTER: | |
3273 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
3274 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
3275 | break; | |
3276 | ||
3277 | case elfcpp::R_SPARC_8: | |
3278 | Relocate_functions<size, big_endian>::rela8(view, object, | |
3279 | psymval, addend); | |
3280 | break; | |
3281 | ||
3282 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
3283 | if (rela.get_r_offset() & 0x1) |
3284 | { | |
3285 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3286 | // for dwarf2 cfi directives. |
705b5121 DM |
3287 | Reloc::ua16(view, object, psymval, addend); |
3288 | } | |
3289 | else | |
3290 | Relocate_functions<size, big_endian>::rela16(view, object, | |
3291 | psymval, addend); | |
f5314dd5 DM |
3292 | break; |
3293 | ||
3294 | case elfcpp::R_SPARC_32: | |
3295 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3296 | { |
3297 | if (rela.get_r_offset() & 0x3) | |
3298 | { | |
3299 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3300 | // for dwarf2 cfi directives. |
705b5121 DM |
3301 | Reloc::ua32(view, object, psymval, addend); |
3302 | } | |
3303 | else | |
3304 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3305 | psymval, addend); | |
3306 | } | |
f5314dd5 DM |
3307 | break; |
3308 | ||
3309 | case elfcpp::R_SPARC_DISP8: | |
3310 | Reloc::disp8(view, object, psymval, addend, address); | |
3311 | break; | |
3312 | ||
3313 | case elfcpp::R_SPARC_DISP16: | |
3314 | Reloc::disp16(view, object, psymval, addend, address); | |
3315 | break; | |
3316 | ||
3317 | case elfcpp::R_SPARC_DISP32: | |
3318 | Reloc::disp32(view, object, psymval, addend, address); | |
3319 | break; | |
3320 | ||
3321 | case elfcpp::R_SPARC_DISP64: | |
3322 | Reloc::disp64(view, object, psymval, addend, address); | |
3323 | break; | |
3324 | ||
3325 | case elfcpp::R_SPARC_WDISP30: | |
3326 | case elfcpp::R_SPARC_WPLT30: | |
3327 | Reloc::wdisp30(view, object, psymval, addend, address); | |
a5a5f7a3 DM |
3328 | if (target->may_relax()) |
3329 | relax_call(target, view, rela, view_size); | |
f5314dd5 DM |
3330 | break; |
3331 | ||
3332 | case elfcpp::R_SPARC_WDISP22: | |
3333 | Reloc::wdisp22(view, object, psymval, addend, address); | |
3334 | break; | |
3335 | ||
3336 | case elfcpp::R_SPARC_WDISP19: | |
3337 | Reloc::wdisp19(view, object, psymval, addend, address); | |
3338 | break; | |
3339 | ||
3340 | case elfcpp::R_SPARC_WDISP16: | |
3341 | Reloc::wdisp16(view, object, psymval, addend, address); | |
3342 | break; | |
3343 | ||
2615994e DM |
3344 | case elfcpp::R_SPARC_WDISP10: |
3345 | Reloc::wdisp10(view, object, psymval, addend, address); | |
3346 | break; | |
3347 | ||
f5314dd5 DM |
3348 | case elfcpp::R_SPARC_HI22: |
3349 | Reloc::hi22(view, object, psymval, addend); | |
3350 | break; | |
3351 | ||
3352 | case elfcpp::R_SPARC_22: | |
3353 | Reloc::rela32_22(view, object, psymval, addend); | |
3354 | break; | |
3355 | ||
3356 | case elfcpp::R_SPARC_13: | |
3357 | Reloc::rela32_13(view, object, psymval, addend); | |
3358 | break; | |
3359 | ||
3360 | case elfcpp::R_SPARC_LO10: | |
3361 | Reloc::lo10(view, object, psymval, addend); | |
3362 | break; | |
3363 | ||
3364 | case elfcpp::R_SPARC_GOT10: | |
3365 | Reloc::lo10(view, got_offset, addend); | |
3366 | break; | |
3367 | ||
024c4466 | 3368 | case elfcpp::R_SPARC_GOTDATA_OP: |
2a1079e8 DM |
3369 | if (gdop_valid) |
3370 | { | |
3371 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3372 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3373 | Insntype val; | |
3374 | ||
3375 | // {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd | |
3376 | val = elfcpp::Swap<32, true>::readval(wv); | |
3377 | val = 0x80000000 | (val & 0x3e07c01f); | |
3378 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3379 | } | |
024c4466 DM |
3380 | break; |
3381 | ||
3382 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3383 | if (gdop_valid) |
3384 | { | |
3385 | Reloc::gdop_lox10(view, got_offset, addend); | |
3386 | break; | |
3387 | } | |
3388 | /* Fall through. */ | |
f5314dd5 DM |
3389 | case elfcpp::R_SPARC_GOT13: |
3390 | Reloc::rela32_13(view, got_offset, addend); | |
3391 | break; | |
3392 | ||
024c4466 | 3393 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
2a1079e8 DM |
3394 | if (gdop_valid) |
3395 | { | |
3396 | Reloc::gdop_hix22(view, got_offset, addend); | |
3397 | break; | |
3398 | } | |
3399 | /* Fall through. */ | |
f5314dd5 DM |
3400 | case elfcpp::R_SPARC_GOT22: |
3401 | Reloc::hi22(view, got_offset, addend); | |
3402 | break; | |
3403 | ||
3404 | case elfcpp::R_SPARC_PC10: | |
3405 | Reloc::pc10(view, object, psymval, addend, address); | |
3406 | break; | |
3407 | ||
3408 | case elfcpp::R_SPARC_PC22: | |
3409 | Reloc::pc22(view, object, psymval, addend, address); | |
3410 | break; | |
3411 | ||
3412 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3413 | case elfcpp::R_SPARC_UA32: | |
3414 | Reloc::ua32(view, object, psymval, addend); | |
3415 | break; | |
3416 | ||
3417 | case elfcpp::R_SPARC_PLT64: | |
3418 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3419 | psymval, addend); | |
3420 | break; | |
3421 | ||
3422 | case elfcpp::R_SPARC_PLT32: | |
3423 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3424 | psymval, addend); | |
3425 | break; | |
3426 | ||
3427 | case elfcpp::R_SPARC_HIPLT22: | |
3428 | Reloc::hi22(view, object, psymval, addend); | |
3429 | break; | |
3430 | ||
3431 | case elfcpp::R_SPARC_LOPLT10: | |
3432 | Reloc::lo10(view, object, psymval, addend); | |
3433 | break; | |
3434 | ||
3435 | case elfcpp::R_SPARC_PCPLT32: | |
3436 | Reloc::disp32(view, object, psymval, addend, address); | |
3437 | break; | |
3438 | ||
3439 | case elfcpp::R_SPARC_PCPLT22: | |
3440 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3441 | break; | |
3442 | ||
3443 | case elfcpp::R_SPARC_PCPLT10: | |
3444 | Reloc::lo10(view, object, psymval, addend, address); | |
3445 | break; | |
3446 | ||
3447 | case elfcpp::R_SPARC_64: | |
3448 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3449 | { |
3450 | if (rela.get_r_offset() & 0x7) | |
3451 | { | |
3452 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3453 | // for dwarf2 cfi directives. |
705b5121 DM |
3454 | Reloc::ua64(view, object, psymval, addend); |
3455 | } | |
3456 | else | |
3457 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3458 | psymval, addend); | |
3459 | } | |
f5314dd5 DM |
3460 | break; |
3461 | ||
3462 | case elfcpp::R_SPARC_OLO10: | |
3463 | { | |
3464 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
3465 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
3466 | Reloc::olo10(view, object, psymval, addend, addend2); | |
3467 | } | |
3468 | break; | |
3469 | ||
3470 | case elfcpp::R_SPARC_HH22: | |
3471 | Reloc::hh22(view, object, psymval, addend); | |
3472 | break; | |
3473 | ||
3474 | case elfcpp::R_SPARC_PC_HH22: | |
3475 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
3476 | break; | |
3477 | ||
3478 | case elfcpp::R_SPARC_HM10: | |
3479 | Reloc::hm10(view, object, psymval, addend); | |
3480 | break; | |
3481 | ||
3482 | case elfcpp::R_SPARC_PC_HM10: | |
3483 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
3484 | break; | |
3485 | ||
3486 | case elfcpp::R_SPARC_LM22: | |
3487 | Reloc::hi22(view, object, psymval, addend); | |
3488 | break; | |
3489 | ||
3490 | case elfcpp::R_SPARC_PC_LM22: | |
3491 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3492 | break; | |
3493 | ||
3494 | case elfcpp::R_SPARC_11: | |
3495 | Reloc::rela32_11(view, object, psymval, addend); | |
3496 | break; | |
3497 | ||
3498 | case elfcpp::R_SPARC_10: | |
3499 | Reloc::rela32_10(view, object, psymval, addend); | |
3500 | break; | |
3501 | ||
3502 | case elfcpp::R_SPARC_7: | |
3503 | Reloc::rela32_7(view, object, psymval, addend); | |
3504 | break; | |
3505 | ||
3506 | case elfcpp::R_SPARC_6: | |
3507 | Reloc::rela32_6(view, object, psymval, addend); | |
3508 | break; | |
3509 | ||
3510 | case elfcpp::R_SPARC_5: | |
3511 | Reloc::rela32_5(view, object, psymval, addend); | |
3512 | break; | |
3513 | ||
3514 | case elfcpp::R_SPARC_HIX22: | |
3515 | Reloc::hix22(view, object, psymval, addend); | |
3516 | break; | |
3517 | ||
3518 | case elfcpp::R_SPARC_LOX10: | |
3519 | Reloc::lox10(view, object, psymval, addend); | |
3520 | break; | |
3521 | ||
2615994e DM |
3522 | case elfcpp::R_SPARC_H34: |
3523 | Reloc::h34(view, object, psymval, addend); | |
3524 | break; | |
3525 | ||
f5314dd5 DM |
3526 | case elfcpp::R_SPARC_H44: |
3527 | Reloc::h44(view, object, psymval, addend); | |
3528 | break; | |
3529 | ||
3530 | case elfcpp::R_SPARC_M44: | |
3531 | Reloc::m44(view, object, psymval, addend); | |
3532 | break; | |
3533 | ||
3534 | case elfcpp::R_SPARC_L44: | |
3535 | Reloc::l44(view, object, psymval, addend); | |
3536 | break; | |
3537 | ||
3538 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3539 | case elfcpp::R_SPARC_UA64: | |
3540 | Reloc::ua64(view, object, psymval, addend); | |
3541 | break; | |
3542 | ||
3543 | case elfcpp::R_SPARC_UA16: | |
3544 | Reloc::ua16(view, object, psymval, addend); | |
3545 | break; | |
3546 | ||
3547 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3548 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3549 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3550 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3551 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3552 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3553 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3554 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3555 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3556 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3557 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3558 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3559 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3560 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3561 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 3562 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
3563 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3564 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3565 | this->relocate_tls(relinfo, target, relnum, rela, | |
3566 | r_type, gsym, psymval, view, | |
3567 | address, view_size); | |
3568 | break; | |
3569 | ||
3570 | case elfcpp::R_SPARC_COPY: | |
3571 | case elfcpp::R_SPARC_GLOB_DAT: | |
3572 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 3573 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 3574 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 3575 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3576 | // These are outstanding tls relocs, which are unexpected when |
3577 | // linking. | |
3578 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
3579 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3580 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3581 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3582 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3583 | _("unexpected reloc %u in object file"), | |
3584 | r_type); | |
3585 | break; | |
3586 | ||
3587 | default: | |
3588 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3589 | _("unsupported reloc %u"), | |
3590 | r_type); | |
3591 | break; | |
3592 | } | |
3593 | ||
3594 | return true; | |
3595 | } | |
3596 | ||
3597 | // Perform a TLS relocation. | |
3598 | ||
3599 | template<int size, bool big_endian> | |
3600 | inline void | |
3601 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
3602 | const Relocate_info<size, big_endian>* relinfo, | |
3603 | Target_sparc<size, big_endian>* target, | |
3604 | size_t relnum, | |
3605 | const elfcpp::Rela<size, big_endian>& rela, | |
3606 | unsigned int r_type, | |
3607 | const Sized_symbol<size>* gsym, | |
3608 | const Symbol_value<size>* psymval, | |
3609 | unsigned char* view, | |
3610 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3611 | section_size_type) | |
3612 | { | |
3613 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
3614 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
6fa2a40b | 3615 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3616 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; |
3617 | ||
3618 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 3619 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
3620 | |
3621 | const bool is_final = | |
3622 | (gsym == NULL | |
3623 | ? !parameters->options().output_is_position_independent() | |
3624 | : gsym->final_value_is_known()); | |
3625 | const tls::Tls_optimization optimized_type | |
3626 | = optimize_tls_reloc(is_final, r_type); | |
3627 | ||
3628 | switch (r_type) | |
3629 | { | |
3630 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3631 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3632 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3633 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3634 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3635 | { | |
3636 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3637 | Insntype val; | |
3638 | ||
2ea97941 | 3639 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3640 | |
3641 | switch (r_type) | |
3642 | { | |
3643 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3644 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 3645 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3646 | break; |
3647 | ||
3648 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3649 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 3650 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3651 | break; |
3652 | ||
3653 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3654 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
3655 | val = elfcpp::Swap<32, true>::readval(wv); | |
3656 | val = (val & ~0x7c000) | 0x1c000; | |
3657 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3658 | break; | |
3659 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3660 | // call __tls_get_addr --> nop | |
3661 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3662 | break; | |
3663 | } | |
3664 | break; | |
3665 | } | |
3666 | else | |
2e702c99 RM |
3667 | { |
3668 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
3669 | ? GOT_TYPE_TLS_OFFSET | |
3670 | : GOT_TYPE_TLS_PAIR); | |
3671 | if (gsym != NULL) | |
3672 | { | |
3673 | gold_assert(gsym->has_got_offset(got_type)); | |
3674 | value = gsym->got_offset(got_type); | |
3675 | } | |
3676 | else | |
3677 | { | |
3678 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3679 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
3680 | value = object->local_got_offset(r_sym, got_type); | |
3681 | } | |
3682 | if (optimized_type == tls::TLSOPT_TO_IE) | |
f5314dd5 DM |
3683 | { |
3684 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3685 | Insntype val; | |
3686 | ||
3687 | switch (r_type) | |
3688 | { | |
3689 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3690 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 3691 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3692 | break; |
3693 | ||
3694 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3695 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 3696 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3697 | break; |
3698 | ||
3699 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3700 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
3701 | val = elfcpp::Swap<32, true>::readval(wv); | |
3702 | ||
3703 | if (size == 64) | |
3704 | val |= 0xc0580000; | |
3705 | else | |
3706 | val |= 0xc0000000; | |
3707 | ||
3708 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3709 | break; | |
3710 | ||
3711 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3712 | // The compiler can put the TLS_GD_ADD instruction | |
3713 | // into the delay slot of the call. If so, we need | |
3714 | // to transpose the two instructions so that the | |
9b547ce6 | 3715 | // new sequence works properly. |
f5314dd5 DM |
3716 | // |
3717 | // The test we use is if the instruction in the | |
3718 | // delay slot is an add with destination register | |
3719 | // equal to %o0 | |
3720 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
3721 | if ((val & 0x81f80000) == 0x80000000 | |
3722 | && ((val >> 25) & 0x1f) == 0x8) | |
3723 | { | |
3724 | if (size == 64) | |
3725 | val |= 0xc0580000; | |
3726 | else | |
3727 | val |= 0xc0000000; | |
3728 | ||
3729 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3730 | ||
3731 | wv += 1; | |
3732 | this->ignore_gd_add_ = true; | |
3733 | } | |
abd242a9 DM |
3734 | else |
3735 | { | |
3736 | // Even if the delay slot isn't the TLS_GD_ADD | |
3737 | // instruction, we still have to handle the case | |
3738 | // where it sets up %o0 in some other way. | |
3739 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3740 | wv += 1; | |
3741 | this->reloc_adjust_addr_ = view + 4; | |
3742 | } | |
f5314dd5 DM |
3743 | // call __tls_get_addr --> add %g7, %o0, %o0 |
3744 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3745 | break; | |
3746 | } | |
2e702c99 | 3747 | break; |
f5314dd5 | 3748 | } |
2e702c99 RM |
3749 | else if (optimized_type == tls::TLSOPT_NONE) |
3750 | { | |
f5314dd5 DM |
3751 | switch (r_type) |
3752 | { | |
3753 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3754 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3755 | break; |
3756 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3757 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3758 | break; |
3759 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3760 | break; | |
3761 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3762 | { | |
3763 | Symbol_value<size> symval; | |
2ea97941 | 3764 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3765 | Symbol* tsym; |
3766 | ||
3767 | tsym = target->tls_get_addr_sym_; | |
3768 | gold_assert(tsym); | |
2ea97941 ILT |
3769 | value = (target->plt_section()->address() + |
3770 | tsym->plt_offset()); | |
3771 | symval.set_output_value(value); | |
f5314dd5 DM |
3772 | Reloc::wdisp30(view, object, &symval, addend, address); |
3773 | } | |
3774 | break; | |
3775 | } | |
3776 | break; | |
2e702c99 RM |
3777 | } |
3778 | } | |
f5314dd5 DM |
3779 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3780 | _("unsupported reloc %u"), | |
3781 | r_type); | |
3782 | break; | |
3783 | ||
3784 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3785 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3786 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3787 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3788 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3789 | { | |
3790 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3791 | ||
3792 | switch (r_type) | |
3793 | { | |
3794 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3795 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3796 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3797 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3798 | break; | |
3799 | ||
3800 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3801 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3802 | break; | |
3803 | } | |
3804 | break; | |
3805 | } | |
3806 | else if (optimized_type == tls::TLSOPT_NONE) | |
2e702c99 RM |
3807 | { |
3808 | // Relocate the field with the offset of the GOT entry for | |
3809 | // the module index. | |
3810 | unsigned int got_offset; | |
f5314dd5 DM |
3811 | |
3812 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3813 | switch (r_type) | |
3814 | { | |
3815 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3816 | Reloc::hi22(view, got_offset, addend); | |
3817 | break; | |
3818 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3819 | Reloc::lo10(view, got_offset, addend); | |
3820 | break; | |
3821 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3822 | break; | |
3823 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3824 | { | |
3825 | Symbol_value<size> symval; | |
2ea97941 | 3826 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3827 | Symbol* tsym; |
3828 | ||
3829 | tsym = target->tls_get_addr_sym_; | |
3830 | gold_assert(tsym); | |
2ea97941 ILT |
3831 | value = (target->plt_section()->address() + |
3832 | tsym->plt_offset()); | |
3833 | symval.set_output_value(value); | |
f5314dd5 DM |
3834 | Reloc::wdisp30(view, object, &symval, addend, address); |
3835 | } | |
3836 | break; | |
3837 | } | |
2e702c99 RM |
3838 | break; |
3839 | } | |
f5314dd5 DM |
3840 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3841 | _("unsupported reloc %u"), | |
3842 | r_type); | |
3843 | break; | |
3844 | ||
3845 | // These relocs can appear in debugging sections, in which case | |
3846 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3847 | // field tells us this. | |
3848 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3849 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3850 | { | |
2ea97941 ILT |
3851 | value -= tls_segment->memsz(); |
3852 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3853 | } |
3854 | else | |
2ea97941 | 3855 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3856 | break; |
3857 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3858 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3859 | { | |
2ea97941 ILT |
3860 | value -= tls_segment->memsz(); |
3861 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3862 | } |
3863 | else | |
2ea97941 | 3864 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3865 | break; |
3866 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3867 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3868 | { | |
3869 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3870 | Insntype val; | |
3871 | ||
3872 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3873 | val = elfcpp::Swap<32, true>::readval(wv); | |
3874 | val = (val & ~0x7c000) | 0x1c000; | |
3875 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3876 | } | |
3877 | break; | |
3878 | ||
3879 | // When optimizing IE --> LE, the only relocation that is handled | |
3880 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3881 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3882 | // rs2 and rd are the same. | |
3883 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3884 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3885 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3886 | { | |
3887 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3888 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3889 | Insntype rs2 = val & 0x1f; | |
3890 | Insntype rd = (val >> 25) & 0x1f; | |
3891 | ||
3892 | if (rs2 == rd) | |
3893 | val = sparc_nop; | |
3894 | else | |
3895 | val = sparc_mov | (val & 0x3e00001f); | |
3896 | ||
3897 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3898 | } | |
3899 | break; | |
3900 | ||
3901 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3902 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3903 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3904 | { | |
2ea97941 | 3905 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3906 | switch (r_type) |
3907 | { | |
3908 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3909 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3910 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3911 | break; |
3912 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3913 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3914 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3915 | break; |
3916 | } | |
3917 | break; | |
3918 | } | |
3919 | else if (optimized_type == tls::TLSOPT_NONE) | |
3920 | { | |
3921 | // Relocate the field with the offset of the GOT entry for | |
3922 | // the tp-relative offset of the symbol. | |
3923 | if (gsym != NULL) | |
3924 | { | |
3925 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3926 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3927 | } |
3928 | else | |
3929 | { | |
3930 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3931 | gold_assert(object->local_has_got_offset(r_sym, | |
3932 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3933 | value = object->local_got_offset(r_sym, |
3934 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3935 | } |
3936 | switch (r_type) | |
3937 | { | |
3938 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3939 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3940 | break; |
3941 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3942 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3943 | break; |
3944 | } | |
3945 | break; | |
3946 | } | |
3947 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3948 | _("unsupported reloc %u"), | |
3949 | r_type); | |
3950 | break; | |
3951 | ||
9efe6174 ILT |
3952 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3953 | // This seems to be mainly so that we can find the addition | |
3954 | // instruction if there is one. There doesn't seem to be any | |
3955 | // actual relocation to apply. | |
3956 | break; | |
3957 | ||
f5314dd5 DM |
3958 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3959 | // If we're creating a shared library, a dynamic relocation will | |
3960 | // have been created for this location, so do not apply it now. | |
3961 | if (!parameters->options().shared()) | |
3962 | { | |
2ea97941 ILT |
3963 | value -= tls_segment->memsz(); |
3964 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3965 | } |
3966 | break; | |
3967 | ||
3968 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3969 | // If we're creating a shared library, a dynamic relocation will | |
3970 | // have been created for this location, so do not apply it now. | |
3971 | if (!parameters->options().shared()) | |
3972 | { | |
2ea97941 ILT |
3973 | value -= tls_segment->memsz(); |
3974 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3975 | } |
3976 | break; | |
3977 | } | |
3978 | } | |
3979 | ||
a5a5f7a3 DM |
3980 | // Relax a call instruction. |
3981 | ||
3982 | template<int size, bool big_endian> | |
3983 | inline void | |
3984 | Target_sparc<size, big_endian>::Relocate::relax_call( | |
3985 | Target_sparc<size, big_endian>* target, | |
3986 | unsigned char* view, | |
3987 | const elfcpp::Rela<size, big_endian>& rela, | |
3988 | section_size_type view_size) | |
3989 | { | |
3990 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3991 | Insntype *wv = reinterpret_cast<Insntype*>(view); | |
3992 | Insntype call_insn, delay_insn, set_insn; | |
3993 | uint32_t op3, reg, off; | |
3994 | ||
3995 | // This code tries to relax call instructions that meet | |
3996 | // certain criteria. | |
3997 | // | |
3998 | // The first criteria is that the call must be such that the return | |
3999 | // address which the call writes into %o7 is unused. Two sequences | |
4000 | // meet this criteria, and are used to implement tail calls. | |
4001 | // | |
4002 | // Leaf function tail call: | |
4003 | // | |
4004 | // or %o7, %g0, %ANY_REG | |
4005 | // call FUNC | |
4006 | // or %ANY_REG, %g0, %o7 | |
4007 | // | |
4008 | // Non-leaf function tail call: | |
4009 | // | |
4010 | // call FUNC | |
4011 | // restore | |
4012 | // | |
4013 | // The second criteria is that the call destination is close. If | |
4014 | // the displacement can fit in a signed 22-bit immediate field of a | |
4015 | // pre-V9 branch, we can do it. If we are generating a 64-bit | |
4016 | // object or a 32-bit object with ELF machine type EF_SPARC32PLUS, | |
4017 | // and the displacement fits in a signed 19-bit immediate field, | |
4018 | // then we can use a V9 branch. | |
4019 | ||
4020 | // Make sure the delay instruction can be safely accessed. | |
4021 | if (rela.get_r_offset() + 8 > view_size) | |
4022 | return; | |
4023 | ||
4024 | call_insn = elfcpp::Swap<32, true>::readval(wv); | |
4025 | delay_insn = elfcpp::Swap<32, true>::readval(wv + 1); | |
4026 | ||
4027 | // Make sure it is really a call instruction. | |
4028 | if (((call_insn >> 30) & 0x3) != 1) | |
4029 | return; | |
4030 | ||
4031 | if (((delay_insn >> 30) & 0x3) != 2) | |
4032 | return; | |
4033 | ||
4034 | // Accept only a restore or an integer arithmetic operation whose | |
4035 | // sole side effect is to write the %o7 register (and perhaps set | |
4036 | // the condition codes, which are considered clobbered across | |
4037 | // function calls). | |
4038 | // | |
4039 | // For example, we don't want to match a tagged addition or | |
4040 | // subtraction. We also don't want to match something like a | |
4041 | // divide. | |
4042 | // | |
4043 | // Specifically we accept add{,cc}, and{,cc}, or{,cc}, | |
4044 | // xor{,cc}, sub{,cc}, andn{,cc}, orn{,cc}, and xnor{,cc}. | |
4045 | ||
4046 | op3 = (delay_insn >> 19) & 0x3f; | |
4047 | reg = (delay_insn >> 25) & 0x1f; | |
4048 | if (op3 != 0x3d | |
4049 | && ((op3 & 0x28) != 0 || reg != 15)) | |
4050 | return; | |
4051 | ||
4052 | // For non-restore instructions, make sure %o7 isn't | |
4053 | // an input. | |
4054 | if (op3 != 0x3d) | |
4055 | { | |
4056 | // First check RS1 | |
4057 | reg = (delay_insn >> 14) & 0x15; | |
4058 | if (reg == 15) | |
4059 | return; | |
4060 | ||
4061 | // And if non-immediate, check RS2 | |
4062 | if (((delay_insn >> 13) & 1) == 0) | |
4063 | { | |
4064 | reg = (delay_insn & 0x1f); | |
4065 | if (reg == 15) | |
4066 | return; | |
4067 | } | |
4068 | } | |
4069 | ||
4070 | // Now check the branch distance. We are called after the | |
4071 | // call has been relocated, so we just have to peek at the | |
4072 | // offset contained in the instruction. | |
4073 | off = call_insn & 0x3fffffff; | |
4074 | if ((off & 0x3fe00000) != 0 | |
4075 | && (off & 0x3fe00000) != 0x3fe00000) | |
4076 | return; | |
4077 | ||
4078 | if ((size == 64 || target->elf_machine_ == elfcpp::EM_SPARC32PLUS) | |
4079 | && ((off & 0x3c0000) == 0 | |
4080 | || (off & 0x3c0000) == 0x3c0000)) | |
4081 | { | |
4082 | // ba,pt %xcc, FUNC | |
4083 | call_insn = 0x10680000 | (off & 0x07ffff); | |
4084 | } | |
4085 | else | |
4086 | { | |
4087 | // ba FUNC | |
4088 | call_insn = 0x10800000 | (off & 0x3fffff); | |
4089 | } | |
4090 | elfcpp::Swap<32, true>::writeval(wv, call_insn); | |
4091 | ||
4092 | // See if we can NOP out the delay slot instruction. We peek | |
4093 | // at the instruction before the call to make sure we're dealing | |
4094 | // with exactly the: | |
4095 | // | |
4096 | // or %o7, %g0, %ANY_REG | |
4097 | // call | |
4098 | // or %ANY_REG, %g0, %o7 | |
4099 | // | |
4100 | // case. Otherwise this might be a tricky piece of hand written | |
4101 | // assembler calculating %o7 in some non-trivial way, and therefore | |
4102 | // we can't be sure that NOP'ing out the delay slot is safe. | |
4103 | if (op3 == 0x02 | |
4104 | && rela.get_r_offset() >= 4) | |
4105 | { | |
4106 | if ((delay_insn & ~(0x1f << 14)) != 0x9e100000) | |
4107 | return; | |
4108 | ||
4109 | set_insn = elfcpp::Swap<32, true>::readval(wv - 1); | |
4110 | if ((set_insn & ~(0x1f << 25)) != 0x8013c000) | |
4111 | return; | |
4112 | ||
4113 | reg = (set_insn >> 25) & 0x1f; | |
4114 | if (reg == 0 || reg == 15) | |
4115 | return; | |
4116 | if (reg != ((delay_insn >> 14) & 0x1f)) | |
4117 | return; | |
4118 | ||
4119 | // All tests pass, nop it out. | |
4120 | elfcpp::Swap<32, true>::writeval(wv + 1, sparc_nop); | |
4121 | } | |
4122 | } | |
4123 | ||
f5314dd5 DM |
4124 | // Relocate section data. |
4125 | ||
4126 | template<int size, bool big_endian> | |
4127 | void | |
4128 | Target_sparc<size, big_endian>::relocate_section( | |
4129 | const Relocate_info<size, big_endian>* relinfo, | |
4130 | unsigned int sh_type, | |
4131 | const unsigned char* prelocs, | |
4132 | size_t reloc_count, | |
4133 | Output_section* output_section, | |
4134 | bool needs_special_offset_handling, | |
4135 | unsigned char* view, | |
4136 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
4137 | section_size_type view_size, |
4138 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
4139 | { |
4140 | typedef Target_sparc<size, big_endian> Sparc; | |
4141 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
4142 | ||
4143 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4144 | ||
4145 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
168a4726 | 4146 | Sparc_relocate, gold::Default_comdat_behavior>( |
f5314dd5 DM |
4147 | relinfo, |
4148 | this, | |
4149 | prelocs, | |
4150 | reloc_count, | |
4151 | output_section, | |
4152 | needs_special_offset_handling, | |
4153 | view, | |
4154 | address, | |
364c7fa5 ILT |
4155 | view_size, |
4156 | reloc_symbol_changes); | |
f5314dd5 DM |
4157 | } |
4158 | ||
4159 | // Return the size of a relocation while scanning during a relocatable | |
4160 | // link. | |
4161 | ||
4162 | template<int size, bool big_endian> | |
4163 | unsigned int | |
4164 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
4165 | unsigned int, | |
4166 | Relobj*) | |
4167 | { | |
4168 | // We are always SHT_RELA, so we should never get here. | |
4169 | gold_unreachable(); | |
4170 | return 0; | |
4171 | } | |
4172 | ||
4173 | // Scan the relocs during a relocatable link. | |
4174 | ||
4175 | template<int size, bool big_endian> | |
4176 | void | |
4177 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
4178 | Symbol_table* symtab, |
4179 | Layout* layout, | |
6fa2a40b | 4180 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
4181 | unsigned int data_shndx, |
4182 | unsigned int sh_type, | |
4183 | const unsigned char* prelocs, | |
4184 | size_t reloc_count, | |
4185 | Output_section* output_section, | |
4186 | bool needs_special_offset_handling, | |
4187 | size_t local_symbol_count, | |
4188 | const unsigned char* plocal_symbols, | |
4189 | Relocatable_relocs* rr) | |
4190 | { | |
4191 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4192 | ||
4193 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
4194 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
4195 | ||
4196 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
4197 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
4198 | symtab, |
4199 | layout, | |
4200 | object, | |
4201 | data_shndx, | |
4202 | prelocs, | |
4203 | reloc_count, | |
4204 | output_section, | |
4205 | needs_special_offset_handling, | |
4206 | local_symbol_count, | |
4207 | plocal_symbols, | |
4208 | rr); | |
4209 | } | |
4210 | ||
7404fe1b | 4211 | // Emit relocations for a section. |
f5314dd5 DM |
4212 | |
4213 | template<int size, bool big_endian> | |
4214 | void | |
7404fe1b | 4215 | Target_sparc<size, big_endian>::relocate_relocs( |
f5314dd5 DM |
4216 | const Relocate_info<size, big_endian>* relinfo, |
4217 | unsigned int sh_type, | |
4218 | const unsigned char* prelocs, | |
4219 | size_t reloc_count, | |
4220 | Output_section* output_section, | |
62fe925a | 4221 | typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section, |
f5314dd5 DM |
4222 | const Relocatable_relocs* rr, |
4223 | unsigned char* view, | |
4224 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
4225 | section_size_type view_size, | |
4226 | unsigned char* reloc_view, | |
4227 | section_size_type reloc_view_size) | |
4228 | { | |
4229 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4230 | ||
7404fe1b | 4231 | gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>( |
f5314dd5 DM |
4232 | relinfo, |
4233 | prelocs, | |
4234 | reloc_count, | |
4235 | output_section, | |
4236 | offset_in_output_section, | |
4237 | rr, | |
4238 | view, | |
4239 | view_address, | |
4240 | view_size, | |
4241 | reloc_view, | |
4242 | reloc_view_size); | |
4243 | } | |
4244 | ||
4245 | // Return the value to use for a dynamic which requires special | |
4246 | // treatment. This is how we support equality comparisons of function | |
4247 | // pointers across shared library boundaries, as described in the | |
4248 | // processor specific ABI supplement. | |
4249 | ||
4250 | template<int size, bool big_endian> | |
4251 | uint64_t | |
4252 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
4253 | { | |
4254 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
4255 | return this->plt_section()->address() + gsym->plt_offset(); | |
4256 | } | |
4257 | ||
a4d85145 DM |
4258 | // do_make_elf_object to override the same function in the base class. |
4259 | // We need to use a target-specific sub-class of | |
4260 | // Sized_relobj_file<size, big_endian> to process SPARC specific bits | |
4261 | // of the ELF headers. Hence we need to have our own ELF object creation. | |
4262 | ||
4263 | template<int size, bool big_endian> | |
4264 | Object* | |
4265 | Target_sparc<size, big_endian>::do_make_elf_object( | |
4266 | const std::string& name, | |
4267 | Input_file* input_file, | |
4268 | off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr) | |
4269 | { | |
4270 | elfcpp::Elf_Half machine = ehdr.get_e_machine(); | |
4271 | elfcpp::Elf_Word flags = ehdr.get_e_flags(); | |
4272 | elfcpp::Elf_Word omm, mm; | |
2e702c99 | 4273 | |
a4d85145 DM |
4274 | switch (machine) |
4275 | { | |
4276 | case elfcpp::EM_SPARC32PLUS: | |
4277 | this->elf_machine_ = elfcpp::EM_SPARC32PLUS; | |
4278 | break; | |
4279 | ||
4280 | case elfcpp::EM_SPARC: | |
4281 | case elfcpp::EM_SPARCV9: | |
4282 | break; | |
4283 | ||
4284 | default: | |
4285 | break; | |
4286 | } | |
4287 | ||
4288 | if (!this->elf_flags_set_) | |
4289 | { | |
4290 | this->elf_flags_ = flags; | |
4291 | this->elf_flags_set_ = true; | |
4292 | } | |
4293 | else | |
4294 | { | |
4295 | // Accumulate cpu feature bits. | |
4296 | this->elf_flags_ |= (flags & (elfcpp::EF_SPARC_32PLUS | |
4297 | | elfcpp::EF_SPARC_SUN_US1 | |
4298 | | elfcpp::EF_SPARC_HAL_R1 | |
4299 | | elfcpp::EF_SPARC_SUN_US3)); | |
4300 | ||
4301 | // Bump the memory model setting to the most restrictive | |
4302 | // one we encounter. | |
4303 | omm = (this->elf_flags_ & elfcpp::EF_SPARCV9_MM); | |
4304 | mm = (flags & elfcpp::EF_SPARCV9_MM); | |
4305 | if (omm != mm) | |
4306 | { | |
4307 | if (mm == elfcpp::EF_SPARCV9_TSO) | |
4308 | { | |
4309 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4310 | this->elf_flags_ |= elfcpp::EF_SPARCV9_TSO; | |
4311 | } | |
4312 | else if (mm == elfcpp::EF_SPARCV9_PSO | |
4313 | && omm == elfcpp::EF_SPARCV9_RMO) | |
4314 | { | |
4315 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4316 | this->elf_flags_ |= elfcpp::EF_SPARCV9_PSO; | |
4317 | } | |
4318 | } | |
4319 | } | |
4320 | ||
4321 | // Validate that the little-endian flag matches how we've | |
4322 | // been instantiated. | |
4323 | if (!(flags & elfcpp::EF_SPARC_LEDATA) != big_endian) | |
4324 | { | |
4325 | if (big_endian) | |
4326 | gold_error(_("%s: little endian elf flag set on BE object"), | |
4327 | name.c_str()); | |
4328 | else | |
4329 | gold_error(_("%s: little endian elf flag clear on LE object"), | |
4330 | name.c_str()); | |
4331 | } | |
4332 | ||
4333 | return Target::do_make_elf_object(name, input_file, offset, ehdr); | |
4334 | } | |
4335 | ||
4336 | // Adjust ELF file header. | |
4337 | ||
4338 | template<int size, bool big_endian> | |
4339 | void | |
4340 | Target_sparc<size, big_endian>::do_adjust_elf_header( | |
4341 | unsigned char* view, | |
cc84c10b | 4342 | int len) |
a4d85145 DM |
4343 | { |
4344 | elfcpp::Ehdr_write<size, big_endian> oehdr(view); | |
4345 | ||
4346 | oehdr.put_e_machine(this->elf_machine_); | |
4347 | oehdr.put_e_flags(this->elf_flags_); | |
4348 | ||
4349 | Sized_target<size, big_endian>::do_adjust_elf_header(view, len); | |
4350 | } | |
4351 | ||
f5314dd5 DM |
4352 | // The selector for sparc object files. |
4353 | ||
4354 | template<int size, bool big_endian> | |
4355 | class Target_selector_sparc : public Target_selector | |
4356 | { | |
4357 | public: | |
4358 | Target_selector_sparc() | |
4359 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
03ef7571 ILT |
4360 | (size == 64 ? "elf64-sparc" : "elf32-sparc"), |
4361 | (size == 64 ? "elf64_sparc" : "elf32_sparc")) | |
f5314dd5 DM |
4362 | { } |
4363 | ||
2e702c99 RM |
4364 | virtual Target* |
4365 | do_recognize(Input_file*, off_t, int machine, int, int) | |
f5314dd5 DM |
4366 | { |
4367 | switch (size) | |
4368 | { | |
4369 | case 64: | |
2ea97941 | 4370 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
4371 | return NULL; |
4372 | break; | |
4373 | ||
4374 | case 32: | |
2ea97941 ILT |
4375 | if (machine != elfcpp::EM_SPARC |
4376 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
4377 | return NULL; |
4378 | break; | |
4379 | ||
4380 | default: | |
4381 | return NULL; | |
4382 | } | |
4383 | ||
7f055c20 | 4384 | return this->instantiate_target(); |
f5314dd5 DM |
4385 | } |
4386 | ||
2e702c99 RM |
4387 | virtual Target* |
4388 | do_instantiate_target() | |
7f055c20 | 4389 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
4390 | }; |
4391 | ||
4392 | Target_selector_sparc<32, true> target_selector_sparc32; | |
4393 | Target_selector_sparc<64, true> target_selector_sparc64; | |
4394 | ||
4395 | } // End anonymous namespace. |