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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
8c2bf391 | 3 | // Copyright 2008, 2009, 2010, 2011, 2012 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), |
12c0daef | 62 | copy_relocs_(elfcpp::R_SPARC_COPY), dynbss_(NULL), |
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, | |
141 | off_t offset_in_output_section, | |
142 | const Relocatable_relocs*, | |
143 | unsigned char* view, | |
144 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
145 | section_size_type view_size, | |
146 | unsigned char* reloc_view, | |
147 | section_size_type reloc_view_size); | |
148 | ||
f5314dd5 DM |
149 | // Return whether SYM is defined by the ABI. |
150 | bool | |
9c2d0ef9 | 151 | do_is_defined_by_abi(const Symbol* sym) const |
f5314dd5 DM |
152 | { |
153 | // XXX Really need to support this better... | |
154 | if (sym->type() == elfcpp::STT_SPARC_REGISTER) | |
155 | return 1; | |
156 | ||
157 | return strcmp(sym->name(), "___tls_get_addr") == 0; | |
158 | } | |
159 | ||
8c2bf391 DM |
160 | // Return the PLT address to use for a global symbol. |
161 | uint64_t | |
162 | do_plt_address_for_global(const Symbol* gsym) const | |
163 | { return this->plt_section()->address_for_global(gsym); } | |
164 | ||
165 | uint64_t | |
166 | do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const | |
167 | { return this->plt_section()->address_for_local(relobj, symndx); } | |
168 | ||
9efe6174 ILT |
169 | // Return whether there is a GOT section. |
170 | bool | |
171 | has_got_section() const | |
172 | { return this->got_ != NULL; } | |
173 | ||
f5314dd5 DM |
174 | // Return the size of the GOT section. |
175 | section_size_type | |
0e70b911 | 176 | got_size() const |
f5314dd5 DM |
177 | { |
178 | gold_assert(this->got_ != NULL); | |
179 | return this->got_->data_size(); | |
180 | } | |
181 | ||
0e70b911 CC |
182 | // Return the number of entries in the GOT. |
183 | unsigned int | |
184 | got_entry_count() const | |
185 | { | |
186 | if (this->got_ == NULL) | |
187 | return 0; | |
188 | return this->got_size() / (size / 8); | |
189 | } | |
190 | ||
2a1079e8 DM |
191 | // Return the address of the GOT. |
192 | uint64_t | |
193 | got_address() const | |
194 | { | |
195 | if (this->got_ == NULL) | |
196 | return 0; | |
197 | return this->got_->address(); | |
198 | } | |
199 | ||
0e70b911 CC |
200 | // Return the number of entries in the PLT. |
201 | unsigned int | |
202 | plt_entry_count() const; | |
203 | ||
204 | // Return the offset of the first non-reserved PLT entry. | |
205 | unsigned int | |
206 | first_plt_entry_offset() const; | |
207 | ||
208 | // Return the size of each PLT entry. | |
209 | unsigned int | |
210 | plt_entry_size() const; | |
211 | ||
a4d85145 DM |
212 | protected: |
213 | // Make an ELF object. | |
214 | Object* | |
215 | do_make_elf_object(const std::string&, Input_file*, off_t, | |
216 | const elfcpp::Ehdr<size, big_endian>& ehdr); | |
217 | ||
218 | void | |
219 | do_adjust_elf_header(unsigned char* view, int len) const; | |
220 | ||
f5314dd5 DM |
221 | private: |
222 | ||
223 | // The class which scans relocations. | |
32b769e1 | 224 | class Scan |
f5314dd5 | 225 | { |
32b769e1 DM |
226 | public: |
227 | Scan() | |
228 | : issued_non_pic_error_(false) | |
229 | { } | |
230 | ||
95a2c8d6 RS |
231 | static inline int |
232 | get_reference_flags(unsigned int r_type); | |
233 | ||
f5314dd5 | 234 | inline void |
ad0f2072 | 235 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 236 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
237 | unsigned int data_shndx, |
238 | Output_section* output_section, | |
239 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
240 | const elfcpp::Sym<size, big_endian>& lsym); | |
241 | ||
242 | inline void | |
ad0f2072 | 243 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 244 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
245 | unsigned int data_shndx, |
246 | Output_section* output_section, | |
247 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
248 | Symbol* gsym); | |
249 | ||
21bb3914 ST |
250 | inline bool |
251 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
252 | Target_sparc* , |
253 | Sized_relobj_file<size, big_endian>* , | |
21bb3914 | 254 | unsigned int , |
2e702c99 RM |
255 | Output_section* , |
256 | const elfcpp::Rela<size, big_endian>& , | |
257 | unsigned int , | |
258 | const elfcpp::Sym<size, big_endian>&) | |
21bb3914 ST |
259 | { return false; } |
260 | ||
261 | inline bool | |
262 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
263 | Target_sparc* , |
264 | Sized_relobj_file<size, big_endian>* , | |
265 | unsigned int , | |
266 | Output_section* , | |
267 | const elfcpp::Rela<size, | |
268 | big_endian>& , | |
269 | unsigned int , Symbol*) | |
21bb3914 ST |
270 | { return false; } |
271 | ||
272 | ||
32b769e1 | 273 | private: |
f5314dd5 | 274 | static void |
6fa2a40b | 275 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
276 | unsigned int r_type); |
277 | ||
278 | static void | |
6fa2a40b | 279 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
280 | unsigned int r_type, Symbol*); |
281 | ||
282 | static void | |
283 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
284 | Target_sparc* target); | |
32b769e1 DM |
285 | |
286 | void | |
287 | check_non_pic(Relobj*, unsigned int r_type); | |
288 | ||
8c2bf391 DM |
289 | bool |
290 | reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, | |
291 | unsigned int r_type); | |
292 | ||
32b769e1 DM |
293 | // Whether we have issued an error about a non-PIC compilation. |
294 | bool issued_non_pic_error_; | |
f5314dd5 DM |
295 | }; |
296 | ||
297 | // The class which implements relocation. | |
298 | class Relocate | |
299 | { | |
300 | public: | |
301 | Relocate() | |
abd242a9 | 302 | : ignore_gd_add_(false), reloc_adjust_addr_(NULL) |
f5314dd5 DM |
303 | { } |
304 | ||
305 | ~Relocate() | |
306 | { | |
307 | if (this->ignore_gd_add_) | |
308 | { | |
309 | // FIXME: This needs to specify the location somehow. | |
310 | gold_error(_("missing expected TLS relocation")); | |
311 | } | |
312 | } | |
313 | ||
314 | // Do a relocation. Return false if the caller should not issue | |
315 | // any warnings about this relocation. | |
316 | inline bool | |
317 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
318 | Output_section*, size_t relnum, |
319 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
320 | unsigned int r_type, const Sized_symbol<size>*, |
321 | const Symbol_value<size>*, | |
322 | unsigned char*, | |
323 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
324 | section_size_type); | |
325 | ||
326 | private: | |
327 | // Do a TLS relocation. | |
328 | inline void | |
329 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
2e702c99 | 330 | size_t relnum, const elfcpp::Rela<size, big_endian>&, |
f5314dd5 DM |
331 | unsigned int r_type, const Sized_symbol<size>*, |
332 | const Symbol_value<size>*, | |
333 | unsigned char*, | |
334 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
335 | section_size_type); | |
336 | ||
a5a5f7a3 DM |
337 | inline void |
338 | relax_call(Target_sparc<size, big_endian>* target, | |
339 | unsigned char* view, | |
340 | const elfcpp::Rela<size, big_endian>& rela, | |
341 | section_size_type view_size); | |
342 | ||
f5314dd5 DM |
343 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD |
344 | bool ignore_gd_add_; | |
abd242a9 DM |
345 | |
346 | // If we hit a reloc at this view address, adjust it back by 4 bytes. | |
347 | unsigned char *reloc_adjust_addr_; | |
f5314dd5 DM |
348 | }; |
349 | ||
350 | // A class which returns the size required for a relocation type, | |
351 | // used while scanning relocs during a relocatable link. | |
352 | class Relocatable_size_for_reloc | |
353 | { | |
354 | public: | |
355 | unsigned int | |
356 | get_size_for_reloc(unsigned int, Relobj*); | |
357 | }; | |
358 | ||
359 | // Get the GOT section, creating it if necessary. | |
360 | Output_data_got<size, big_endian>* | |
361 | got_section(Symbol_table*, Layout*); | |
362 | ||
8c2bf391 DM |
363 | // Create the PLT section. |
364 | void | |
365 | make_plt_section(Symbol_table* symtab, Layout* layout); | |
366 | ||
f5314dd5 DM |
367 | // Create a PLT entry for a global symbol. |
368 | void | |
369 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
370 | ||
8c2bf391 DM |
371 | // Create a PLT entry for a local STT_GNU_IFUNC symbol. |
372 | void | |
373 | make_local_ifunc_plt_entry(Symbol_table*, Layout*, | |
374 | Sized_relobj_file<size, big_endian>* relobj, | |
375 | unsigned int local_sym_index); | |
376 | ||
f5314dd5 DM |
377 | // Create a GOT entry for the TLS module index. |
378 | unsigned int | |
379 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
6fa2a40b | 380 | Sized_relobj_file<size, big_endian>* object); |
f5314dd5 DM |
381 | |
382 | // Return the gsym for "__tls_get_addr". Cache if not already | |
383 | // cached. | |
384 | Symbol* | |
385 | tls_get_addr_sym(Symbol_table* symtab) | |
386 | { | |
387 | if (!this->tls_get_addr_sym_) | |
388 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
389 | gold_assert(this->tls_get_addr_sym_); | |
390 | return this->tls_get_addr_sym_; | |
391 | } | |
392 | ||
393 | // Get the PLT section. | |
8c2bf391 | 394 | Output_data_plt_sparc<size, big_endian>* |
f5314dd5 DM |
395 | plt_section() const |
396 | { | |
397 | gold_assert(this->plt_ != NULL); | |
398 | return this->plt_; | |
399 | } | |
400 | ||
401 | // Get the dynamic reloc section, creating it if necessary. | |
402 | Reloc_section* | |
403 | rela_dyn_section(Layout*); | |
404 | ||
8c2bf391 DM |
405 | // Get the section to use for IFUNC relocations. |
406 | Reloc_section* | |
407 | rela_ifunc_section(Layout*); | |
408 | ||
f5314dd5 DM |
409 | // Copy a relocation against a global symbol. |
410 | void | |
ef9beddf | 411 | copy_reloc(Symbol_table* symtab, Layout* layout, |
2e702c99 | 412 | Sized_relobj_file<size, big_endian>* object, |
12c0daef ILT |
413 | unsigned int shndx, Output_section* output_section, |
414 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
415 | { | |
416 | this->copy_relocs_.copy_reloc(symtab, layout, | |
417 | symtab->get_sized_symbol<size>(sym), | |
418 | object, shndx, output_section, | |
419 | reloc, this->rela_dyn_section(layout)); | |
420 | } | |
f5314dd5 DM |
421 | |
422 | // Information about this specific target which we pass to the | |
423 | // general Target structure. | |
424 | static Target::Target_info sparc_info; | |
425 | ||
426 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
427 | // These values are exposed to the ABI in an incremental link. |
428 | // Do not renumber existing values without changing the version | |
429 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
430 | enum Got_type |
431 | { | |
432 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
433 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
434 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
435 | }; | |
436 | ||
437 | // The GOT section. | |
438 | Output_data_got<size, big_endian>* got_; | |
439 | // The PLT section. | |
440 | Output_data_plt_sparc<size, big_endian>* plt_; | |
441 | // The dynamic reloc section. | |
442 | Reloc_section* rela_dyn_; | |
8c2bf391 DM |
443 | // The section to use for IFUNC relocs. |
444 | Reloc_section* rela_ifunc_; | |
f5314dd5 | 445 | // Relocs saved to avoid a COPY reloc. |
12c0daef | 446 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
447 | // Space for variables copied with a COPY reloc. |
448 | Output_data_space* dynbss_; | |
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 | |
484 | NULL // attributes_vendor | |
f5314dd5 DM |
485 | }; |
486 | ||
487 | template<> | |
488 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
489 | { | |
490 | 64, // size | |
491 | true, // is_big_endian | |
492 | elfcpp::EM_SPARCV9, // machine_code | |
493 | false, // has_make_symbol | |
494 | false, // has_resolve | |
495 | false, // has_code_fill | |
496 | true, // is_default_stack_executable | |
b3ce541e | 497 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
498 | '\0', // wrap_char |
499 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
500 | 0x100000, // default_text_segment_address | |
501 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 | 502 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
2e702c99 RM |
503 | false, // isolate_execinstr |
504 | 0, // rosegment_gap | |
8a5e3e08 ILT |
505 | elfcpp::SHN_UNDEF, // small_common_shndx |
506 | elfcpp::SHN_UNDEF, // large_common_shndx | |
507 | 0, // small_common_section_flags | |
05a352e6 DK |
508 | 0, // large_common_section_flags |
509 | NULL, // attributes_section | |
510 | NULL // attributes_vendor | |
f5314dd5 DM |
511 | }; |
512 | ||
513 | // We have to take care here, even when operating in little-endian | |
514 | // mode, sparc instructions are still big endian. | |
515 | template<int size, bool big_endian> | |
516 | class Sparc_relocate_functions | |
517 | { | |
518 | private: | |
519 | // Do a simple relocation with the addend in the relocation. | |
520 | template<int valsize> | |
521 | static inline void | |
522 | rela(unsigned char* view, | |
523 | unsigned int right_shift, | |
524 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 525 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
526 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
527 | { | |
528 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
529 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
530 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 531 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
532 | |
533 | val &= ~dst_mask; | |
534 | reloc &= dst_mask; | |
535 | ||
536 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
537 | } | |
538 | ||
539 | // Do a simple relocation using a symbol value with the addend in | |
540 | // the relocation. | |
541 | template<int valsize> | |
542 | static inline void | |
543 | rela(unsigned char* view, | |
544 | unsigned int right_shift, | |
545 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 546 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
547 | const Symbol_value<size>* psymval, |
548 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
549 | { | |
550 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
551 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
552 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
553 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
554 | ||
555 | val &= ~dst_mask; | |
556 | reloc &= dst_mask; | |
557 | ||
558 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
559 | } | |
560 | ||
561 | // Do a simple relocation using a symbol value with the addend in | |
562 | // the relocation, unaligned. | |
563 | template<int valsize> | |
564 | static inline void | |
565 | rela_ua(unsigned char* view, | |
566 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
6fa2a40b | 567 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
568 | const Symbol_value<size>* psymval, |
569 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
570 | { | |
571 | typedef typename elfcpp::Swap_unaligned<valsize, | |
572 | big_endian>::Valtype Valtype; | |
573 | unsigned char* wv = view; | |
574 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
575 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
576 | ||
577 | val &= ~dst_mask; | |
578 | reloc &= dst_mask; | |
579 | ||
580 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
581 | } | |
582 | ||
583 | // Do a simple PC relative relocation with a Symbol_value with the | |
584 | // addend in the relocation. | |
585 | template<int valsize> | |
586 | static inline void | |
587 | pcrela(unsigned char* view, | |
588 | unsigned int right_shift, | |
589 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 590 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
591 | const Symbol_value<size>* psymval, |
592 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
593 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
594 | { | |
595 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
596 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
597 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
598 | Valtype reloc = ((psymval->value(object, addend) - address) | |
599 | >> right_shift); | |
600 | ||
601 | val &= ~dst_mask; | |
602 | reloc &= dst_mask; | |
603 | ||
604 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
605 | } | |
606 | ||
607 | template<int valsize> | |
608 | static inline void | |
609 | pcrela_unaligned(unsigned char* view, | |
6fa2a40b | 610 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
611 | const Symbol_value<size>* psymval, |
612 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
613 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
614 | { | |
615 | typedef typename elfcpp::Swap_unaligned<valsize, | |
616 | big_endian>::Valtype Valtype; | |
617 | unsigned char* wv = view; | |
618 | Valtype reloc = (psymval->value(object, addend) - address); | |
619 | ||
620 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
621 | } | |
622 | ||
623 | typedef Sparc_relocate_functions<size, big_endian> This; | |
624 | typedef Sparc_relocate_functions<size, true> This_insn; | |
625 | ||
626 | public: | |
627 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
628 | static inline void | |
629 | wdisp30(unsigned char* view, | |
6fa2a40b | 630 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
631 | const Symbol_value<size>* psymval, |
632 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
633 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
634 | { | |
635 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
636 | psymval, addend, address); | |
637 | } | |
638 | ||
639 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
640 | static inline void | |
641 | wdisp22(unsigned char* view, | |
6fa2a40b | 642 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
643 | const Symbol_value<size>* psymval, |
644 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
645 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
646 | { | |
647 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
648 | psymval, addend, address); | |
649 | } | |
650 | ||
651 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
652 | static inline void | |
653 | wdisp19(unsigned char* view, | |
6fa2a40b | 654 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
655 | const Symbol_value<size>* psymval, |
656 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
657 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
658 | { | |
659 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
660 | psymval, addend, address); | |
661 | } | |
662 | ||
663 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
664 | static inline void | |
665 | wdisp16(unsigned char* view, | |
6fa2a40b | 666 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
667 | const Symbol_value<size>* psymval, |
668 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
669 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
670 | { | |
671 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
672 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
673 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
674 | Valtype reloc = ((psymval->value(object, addend) - address) | |
675 | >> 2); | |
676 | ||
677 | // The relocation value is split between the low 14 bits, | |
678 | // and bits 20-21. | |
679 | val &= ~((0x3 << 20) | 0x3fff); | |
680 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
681 | | (reloc & 0x3ffff)); | |
682 | ||
683 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
684 | } | |
685 | ||
2615994e DM |
686 | // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2 |
687 | static inline void | |
688 | wdisp10(unsigned char* view, | |
689 | const Sized_relobj_file<size, big_endian>* object, | |
690 | const Symbol_value<size>* psymval, | |
691 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
692 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
693 | { | |
694 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
695 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
696 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
697 | Valtype reloc = ((psymval->value(object, addend) - address) | |
698 | >> 2); | |
699 | ||
700 | // The relocation value is split between the low bits 5-12, | |
701 | // and high bits 19-20. | |
702 | val &= ~((0x3 << 19) | (0xff << 5)); | |
703 | reloc = (((reloc & 0x300) << (19 - 8)) | |
704 | | ((reloc & 0xff) << (5 - 0))); | |
705 | ||
706 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
707 | } | |
708 | ||
f5314dd5 DM |
709 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 |
710 | static inline void | |
711 | pc22(unsigned char* view, | |
6fa2a40b | 712 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
713 | const Symbol_value<size>* psymval, |
714 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
715 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
716 | { | |
717 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
718 | psymval, addend, address); | |
719 | } | |
720 | ||
721 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
722 | static inline void | |
723 | pc10(unsigned char* view, | |
6fa2a40b | 724 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
725 | const Symbol_value<size>* psymval, |
726 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
727 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
728 | { | |
729 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
730 | psymval, addend, address); | |
731 | } | |
732 | ||
733 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
734 | static inline void | |
735 | hi22(unsigned char* view, | |
2ea97941 | 736 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
737 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
738 | { | |
2ea97941 | 739 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
740 | } |
741 | ||
742 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
743 | static inline void | |
744 | hi22(unsigned char* view, | |
6fa2a40b | 745 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
746 | const Symbol_value<size>* psymval, |
747 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
748 | { | |
749 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
750 | } | |
751 | ||
752 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
753 | static inline void | |
754 | pcplt22(unsigned char* view, | |
6fa2a40b | 755 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
756 | const Symbol_value<size>* psymval, |
757 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
758 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
759 | { | |
760 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
761 | psymval, addend, address); | |
762 | } | |
763 | ||
764 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
765 | static inline void | |
766 | lo10(unsigned char* view, | |
2ea97941 | 767 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
768 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
769 | { | |
2ea97941 | 770 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
771 | } |
772 | ||
773 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
774 | static inline void | |
775 | lo10(unsigned char* view, | |
6fa2a40b | 776 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
777 | const Symbol_value<size>* psymval, |
778 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
779 | { | |
780 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
781 | } | |
782 | ||
783 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
784 | static inline void | |
785 | lo10(unsigned char* view, | |
6fa2a40b | 786 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
787 | const Symbol_value<size>* psymval, |
788 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
789 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
790 | { | |
791 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
792 | psymval, addend, address); | |
793 | } | |
794 | ||
795 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
796 | static inline void | |
797 | olo10(unsigned char* view, | |
6fa2a40b | 798 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
799 | const Symbol_value<size>* psymval, |
800 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
801 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
802 | { | |
803 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
804 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
805 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
806 | Valtype reloc = psymval->value(object, addend); | |
807 | ||
808 | val &= ~0x1fff; | |
809 | reloc &= 0x3ff; | |
810 | reloc += addend2; | |
811 | reloc &= 0x1fff; | |
812 | ||
813 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
814 | } | |
815 | ||
816 | // R_SPARC_22: (Symbol + Addend) | |
817 | static inline void | |
818 | rela32_22(unsigned char* view, | |
6fa2a40b | 819 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
820 | const Symbol_value<size>* psymval, |
821 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
822 | { | |
823 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
824 | } | |
825 | ||
826 | // R_SPARC_13: (Symbol + Addend) | |
827 | static inline void | |
828 | rela32_13(unsigned char* view, | |
2ea97941 | 829 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
830 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
831 | { | |
2ea97941 | 832 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
833 | } |
834 | ||
835 | // R_SPARC_13: (Symbol + Addend) | |
836 | static inline void | |
837 | rela32_13(unsigned char* view, | |
6fa2a40b | 838 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
839 | const Symbol_value<size>* psymval, |
840 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
841 | { | |
842 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
843 | } | |
844 | ||
845 | // R_SPARC_UA16: (Symbol + Addend) | |
846 | static inline void | |
847 | ua16(unsigned char* view, | |
6fa2a40b | 848 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
849 | const Symbol_value<size>* psymval, |
850 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
851 | { | |
852 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
853 | } | |
854 | ||
855 | // R_SPARC_UA32: (Symbol + Addend) | |
856 | static inline void | |
857 | ua32(unsigned char* view, | |
6fa2a40b | 858 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
859 | const Symbol_value<size>* psymval, |
860 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
861 | { | |
862 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
863 | } | |
864 | ||
865 | // R_SPARC_UA64: (Symbol + Addend) | |
866 | static inline void | |
867 | ua64(unsigned char* view, | |
6fa2a40b | 868 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
869 | const Symbol_value<size>* psymval, |
870 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
871 | { | |
872 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
873 | object, psymval, addend); | |
874 | } | |
875 | ||
876 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
877 | static inline void | |
878 | disp8(unsigned char* view, | |
6fa2a40b | 879 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
880 | const Symbol_value<size>* psymval, |
881 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
882 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
883 | { | |
884 | This::template pcrela_unaligned<8>(view, object, psymval, | |
885 | addend, address); | |
886 | } | |
887 | ||
888 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
889 | static inline void | |
890 | disp16(unsigned char* view, | |
6fa2a40b | 891 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
892 | const Symbol_value<size>* psymval, |
893 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
894 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
895 | { | |
896 | This::template pcrela_unaligned<16>(view, object, psymval, | |
897 | addend, address); | |
898 | } | |
899 | ||
900 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
901 | static inline void | |
902 | disp32(unsigned char* view, | |
6fa2a40b | 903 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
904 | const Symbol_value<size>* psymval, |
905 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
906 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
907 | { | |
908 | This::template pcrela_unaligned<32>(view, object, psymval, | |
909 | addend, address); | |
910 | } | |
911 | ||
912 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
913 | static inline void | |
914 | disp64(unsigned char* view, | |
6fa2a40b | 915 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
916 | const Symbol_value<size>* psymval, |
917 | elfcpp::Elf_Xword addend, | |
918 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
919 | { | |
920 | This::template pcrela_unaligned<64>(view, object, psymval, | |
921 | addend, address); | |
922 | } | |
923 | ||
2615994e DM |
924 | // R_SPARC_H34: (Symbol + Addend) >> 12 |
925 | static inline void | |
926 | h34(unsigned char* view, | |
927 | const Sized_relobj_file<size, big_endian>* object, | |
928 | const Symbol_value<size>* psymval, | |
929 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
930 | { | |
931 | This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend); | |
932 | } | |
933 | ||
f5314dd5 DM |
934 | // R_SPARC_H44: (Symbol + Addend) >> 22 |
935 | static inline void | |
936 | h44(unsigned char* view, | |
6fa2a40b | 937 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
938 | const Symbol_value<size>* psymval, |
939 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
940 | { | |
941 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
942 | } | |
943 | ||
944 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
945 | static inline void | |
946 | m44(unsigned char* view, | |
6fa2a40b | 947 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
948 | const Symbol_value<size>* psymval, |
949 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
950 | { | |
951 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
952 | } | |
953 | ||
954 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
955 | static inline void | |
956 | l44(unsigned char* view, | |
6fa2a40b | 957 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
958 | const Symbol_value<size>* psymval, |
959 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
960 | { | |
961 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
962 | } | |
963 | ||
964 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
965 | static inline void | |
966 | hh22(unsigned char* view, | |
6fa2a40b | 967 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
968 | const Symbol_value<size>* psymval, |
969 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
970 | { | |
971 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
972 | } | |
973 | ||
974 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
975 | static inline void | |
976 | pc_hh22(unsigned char* view, | |
6fa2a40b | 977 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
978 | const Symbol_value<size>* psymval, |
979 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
980 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
981 | { | |
982 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
983 | psymval, addend, address); | |
984 | } | |
985 | ||
986 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
987 | static inline void | |
988 | hm10(unsigned char* view, | |
6fa2a40b | 989 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
990 | const Symbol_value<size>* psymval, |
991 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
992 | { | |
993 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
994 | } | |
995 | ||
996 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
997 | static inline void | |
998 | pc_hm10(unsigned char* view, | |
6fa2a40b | 999 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1000 | const Symbol_value<size>* psymval, |
1001 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
1002 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
1003 | { | |
1004 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
1005 | psymval, addend, address); | |
1006 | } | |
1007 | ||
1008 | // R_SPARC_11: (Symbol + Addend) | |
1009 | static inline void | |
1010 | rela32_11(unsigned char* view, | |
6fa2a40b | 1011 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1012 | const Symbol_value<size>* psymval, |
1013 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1014 | { | |
1015 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
1016 | } | |
1017 | ||
1018 | // R_SPARC_10: (Symbol + Addend) | |
1019 | static inline void | |
1020 | rela32_10(unsigned char* view, | |
6fa2a40b | 1021 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1022 | const Symbol_value<size>* psymval, |
1023 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1024 | { | |
1025 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
1026 | } | |
1027 | ||
1028 | // R_SPARC_7: (Symbol + Addend) | |
1029 | static inline void | |
1030 | rela32_7(unsigned char* view, | |
6fa2a40b | 1031 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1032 | const Symbol_value<size>* psymval, |
1033 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1034 | { | |
1035 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
1036 | } | |
1037 | ||
1038 | // R_SPARC_6: (Symbol + Addend) | |
1039 | static inline void | |
1040 | rela32_6(unsigned char* view, | |
6fa2a40b | 1041 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1042 | const Symbol_value<size>* psymval, |
1043 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1044 | { | |
1045 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
1046 | } | |
1047 | ||
1048 | // R_SPARC_5: (Symbol + Addend) | |
1049 | static inline void | |
1050 | rela32_5(unsigned char* view, | |
6fa2a40b | 1051 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1052 | const Symbol_value<size>* psymval, |
1053 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1054 | { | |
1055 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
1056 | } | |
1057 | ||
1058 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
1059 | static inline void | |
1060 | ldo_hix22(unsigned char* view, | |
2ea97941 | 1061 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1062 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1063 | { | |
2ea97941 | 1064 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
1065 | } |
1066 | ||
1067 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
1068 | static inline void | |
1069 | ldo_lox10(unsigned char* view, | |
2ea97941 | 1070 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1071 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1072 | { | |
1073 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1074 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1075 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1076 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1077 | |
1078 | val &= ~0x1fff; | |
1079 | reloc &= 0x3ff; | |
1080 | ||
1081 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1082 | } | |
1083 | ||
1084 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1085 | static inline void | |
1086 | hix22(unsigned char* view, | |
2ea97941 | 1087 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1088 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1089 | { | |
1090 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1091 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1092 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1093 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1094 | |
1095 | val &= ~0x3fffff; | |
1096 | ||
1097 | reloc ^= ~(Valtype)0; | |
1098 | reloc >>= 10; | |
1099 | ||
1100 | reloc &= 0x3fffff; | |
1101 | ||
1102 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1103 | } | |
1104 | ||
2a1079e8 DM |
1105 | // R_SPARC_GOTDATA_OP_HIX22: @gdopoff(Symbol + Addend) >> 10 |
1106 | static inline void | |
1107 | gdop_hix22(unsigned char* view, | |
1108 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1109 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1110 | { | |
1111 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1112 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1113 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1114 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1115 | ||
1116 | val &= ~0x3fffff; | |
1117 | ||
1118 | if (reloc < 0) | |
1119 | reloc ^= ~static_cast<int32_t>(0); | |
1120 | reloc >>= 10; | |
1121 | ||
1122 | reloc &= 0x3fffff; | |
1123 | ||
1124 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1125 | } | |
1126 | ||
f5314dd5 DM |
1127 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 |
1128 | static inline void | |
1129 | hix22(unsigned char* view, | |
6fa2a40b | 1130 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1131 | const Symbol_value<size>* psymval, |
1132 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1133 | { | |
1134 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1135 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1136 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1137 | Valtype reloc = psymval->value(object, addend); | |
1138 | ||
1139 | val &= ~0x3fffff; | |
1140 | ||
1141 | reloc ^= ~(Valtype)0; | |
1142 | reloc >>= 10; | |
1143 | ||
1144 | reloc &= 0x3fffff; | |
1145 | ||
1146 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1147 | } | |
1148 | ||
1149 | ||
1150 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1151 | static inline void | |
1152 | lox10(unsigned char* view, | |
2ea97941 | 1153 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1154 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1155 | { | |
1156 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1157 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1158 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1159 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1160 | |
1161 | val &= ~0x1fff; | |
1162 | reloc &= 0x3ff; | |
1163 | reloc |= 0x1c00; | |
1164 | ||
1165 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1166 | } | |
1167 | ||
2a1079e8 DM |
1168 | // R_SPARC_GOTDATA_OP_LOX10: (@gdopoff(Symbol + Addend) & 0x3ff) | 0x1c00 |
1169 | static inline void | |
1170 | gdop_lox10(unsigned char* view, | |
1171 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1172 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1173 | { | |
1174 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1175 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1176 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1177 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1178 | ||
1179 | if (reloc < 0) | |
1180 | reloc = (reloc & 0x3ff) | 0x1c00; | |
1181 | else | |
1182 | reloc = (reloc & 0x3ff); | |
1183 | ||
1184 | val &= ~0x1fff; | |
1185 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1186 | } | |
1187 | ||
f5314dd5 DM |
1188 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 |
1189 | static inline void | |
1190 | lox10(unsigned char* view, | |
6fa2a40b | 1191 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1192 | const Symbol_value<size>* psymval, |
1193 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1194 | { | |
1195 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1196 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1197 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1198 | Valtype reloc = psymval->value(object, addend); | |
1199 | ||
1200 | val &= ~0x1fff; | |
1201 | reloc &= 0x3ff; | |
1202 | reloc |= 0x1c00; | |
1203 | ||
1204 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1205 | } | |
1206 | }; | |
1207 | ||
1208 | // Get the GOT section, creating it if necessary. | |
1209 | ||
1210 | template<int size, bool big_endian> | |
1211 | Output_data_got<size, big_endian>* | |
1212 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1213 | Layout* layout) | |
1214 | { | |
1215 | if (this->got_ == NULL) | |
1216 | { | |
1217 | gold_assert(symtab != NULL && layout != NULL); | |
1218 | ||
1219 | this->got_ = new Output_data_got<size, big_endian>(); | |
1220 | ||
82742395 ILT |
1221 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1222 | (elfcpp::SHF_ALLOC | |
1223 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1224 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1225 | |
1226 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1227 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1228 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1229 | this->got_, |
1230 | 0, 0, elfcpp::STT_OBJECT, | |
1231 | elfcpp::STB_LOCAL, | |
1232 | elfcpp::STV_HIDDEN, 0, | |
1233 | false, false); | |
1234 | } | |
1235 | ||
1236 | return this->got_; | |
1237 | } | |
1238 | ||
1239 | // Get the dynamic reloc section, creating it if necessary. | |
1240 | ||
1241 | template<int size, bool big_endian> | |
1242 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1243 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1244 | { | |
1245 | if (this->rela_dyn_ == NULL) | |
1246 | { | |
1247 | gold_assert(layout != NULL); | |
d98bc257 | 1248 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1249 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1250 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1251 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1252 | } |
1253 | return this->rela_dyn_; | |
1254 | } | |
1255 | ||
8c2bf391 DM |
1256 | // Get the section to use for IFUNC relocs, creating it if |
1257 | // necessary. These go in .rela.dyn, but only after all other dynamic | |
1258 | // relocations. They need to follow the other dynamic relocations so | |
1259 | // that they can refer to global variables initialized by those | |
1260 | // relocs. | |
1261 | ||
1262 | template<int size, bool big_endian> | |
1263 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1264 | Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout) | |
1265 | { | |
1266 | if (this->rela_ifunc_ == NULL) | |
1267 | { | |
1268 | // Make sure we have already created the dynamic reloc section. | |
1269 | this->rela_dyn_section(layout); | |
1270 | this->rela_ifunc_ = new Reloc_section(false); | |
1271 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, | |
1272 | elfcpp::SHF_ALLOC, this->rela_ifunc_, | |
1273 | ORDER_DYNAMIC_RELOCS, false); | |
1274 | gold_assert(this->rela_dyn_->output_section() | |
1275 | == this->rela_ifunc_->output_section()); | |
1276 | } | |
1277 | return this->rela_ifunc_; | |
1278 | } | |
1279 | ||
f5314dd5 DM |
1280 | // A class to handle the PLT data. |
1281 | ||
1282 | template<int size, bool big_endian> | |
1283 | class Output_data_plt_sparc : public Output_section_data | |
1284 | { | |
1285 | public: | |
1286 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1287 | size, big_endian> Reloc_section; | |
1288 | ||
1289 | Output_data_plt_sparc(Layout*); | |
1290 | ||
1291 | // Add an entry to the PLT. | |
8c2bf391 DM |
1292 | void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym); |
1293 | ||
1294 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. | |
1295 | unsigned int | |
1296 | add_local_ifunc_entry(Symbol_table*, Layout*, | |
1297 | Sized_relobj_file<size, big_endian>* relobj, | |
1298 | unsigned int local_sym_index); | |
f5314dd5 DM |
1299 | |
1300 | // Return the .rela.plt section data. | |
1301 | const Reloc_section* rel_plt() const | |
1302 | { | |
1303 | return this->rel_; | |
1304 | } | |
1305 | ||
8c2bf391 DM |
1306 | // Return where the IFUNC relocations should go. |
1307 | Reloc_section* | |
1308 | rela_ifunc(Symbol_table*, Layout*); | |
1309 | ||
1310 | void | |
1311 | emit_pending_ifunc_relocs(); | |
1312 | ||
1313 | // Return whether we created a section for IFUNC relocations. | |
1314 | bool | |
1315 | has_ifunc_section() const | |
1316 | { return this->ifunc_rel_ != NULL; } | |
1317 | ||
0e70b911 CC |
1318 | // Return the number of PLT entries. |
1319 | unsigned int | |
1320 | entry_count() const | |
8c2bf391 | 1321 | { return this->count_ + this->ifunc_count_; } |
0e70b911 CC |
1322 | |
1323 | // Return the offset of the first non-reserved PLT entry. | |
1324 | static unsigned int | |
1325 | first_plt_entry_offset() | |
1326 | { return 4 * base_plt_entry_size; } | |
1327 | ||
1328 | // Return the size of a PLT entry. | |
1329 | static unsigned int | |
1330 | get_plt_entry_size() | |
1331 | { return base_plt_entry_size; } | |
1332 | ||
8c2bf391 DM |
1333 | // Return the PLT address to use for a global symbol. |
1334 | uint64_t | |
1335 | address_for_global(const Symbol*); | |
1336 | ||
1337 | // Return the PLT address to use for a local symbol. | |
1338 | uint64_t | |
1339 | address_for_local(const Relobj*, unsigned int symndx); | |
1340 | ||
f5314dd5 DM |
1341 | protected: |
1342 | void do_adjust_output_section(Output_section* os); | |
1343 | ||
7d9e3d98 ILT |
1344 | // Write to a map file. |
1345 | void | |
1346 | do_print_to_mapfile(Mapfile* mapfile) const | |
1347 | { mapfile->print_output_data(this, _("** PLT")); } | |
1348 | ||
f5314dd5 DM |
1349 | private: |
1350 | // The size of an entry in the PLT. | |
1351 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1352 | ||
1353 | static const unsigned int plt_entries_per_block = 160; | |
1354 | static const unsigned int plt_insn_chunk_size = 24; | |
1355 | static const unsigned int plt_pointer_chunk_size = 8; | |
1356 | static const unsigned int plt_block_size = | |
1357 | (plt_entries_per_block | |
1358 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1359 | ||
8c2bf391 DM |
1360 | section_offset_type |
1361 | plt_index_to_offset(unsigned int index) | |
f5314dd5 | 1362 | { |
8c2bf391 | 1363 | section_offset_type offset; |
f5314dd5 | 1364 | |
8c2bf391 DM |
1365 | if (size == 32 || index < 32768) |
1366 | offset = index * base_plt_entry_size; | |
f5314dd5 DM |
1367 | else |
1368 | { | |
8c2bf391 | 1369 | unsigned int ext_index = index - 32768; |
f5314dd5 | 1370 | |
8c2bf391 DM |
1371 | offset = (32768 * base_plt_entry_size) |
1372 | + ((ext_index / plt_entries_per_block) | |
1373 | * plt_block_size) | |
1374 | + ((ext_index % plt_entries_per_block) | |
1375 | * plt_insn_chunk_size); | |
f5314dd5 | 1376 | } |
8c2bf391 DM |
1377 | return offset; |
1378 | } | |
1379 | ||
1380 | // Set the final size. | |
1381 | void | |
1382 | set_final_data_size() | |
1383 | { | |
1384 | unsigned int full_count = this->entry_count() + 4; | |
1385 | unsigned int extra = (size == 32 ? 4 : 0); | |
1386 | section_offset_type sz = plt_index_to_offset(full_count) + extra; | |
1387 | ||
1388 | return this->set_data_size(sz); | |
f5314dd5 DM |
1389 | } |
1390 | ||
1391 | // Write out the PLT data. | |
1392 | void | |
1393 | do_write(Output_file*); | |
1394 | ||
8c2bf391 DM |
1395 | struct Global_ifunc |
1396 | { | |
1397 | Reloc_section* rel; | |
1398 | Symbol* gsym; | |
1399 | unsigned int plt_index; | |
1400 | }; | |
1401 | ||
1402 | struct Local_ifunc | |
1403 | { | |
1404 | Reloc_section* rel; | |
1405 | Sized_relobj_file<size, big_endian>* object; | |
1406 | unsigned int local_sym_index; | |
1407 | unsigned int plt_index; | |
1408 | }; | |
1409 | ||
f5314dd5 DM |
1410 | // The reloc section. |
1411 | Reloc_section* rel_; | |
8c2bf391 DM |
1412 | // The IFUNC relocations, if necessary. These must follow the |
1413 | // regular relocations. | |
1414 | Reloc_section* ifunc_rel_; | |
f5314dd5 DM |
1415 | // The number of PLT entries. |
1416 | unsigned int count_; | |
8c2bf391 DM |
1417 | // The number of PLT entries for IFUNC symbols. |
1418 | unsigned int ifunc_count_; | |
1419 | // Global STT_GNU_IFUNC symbols. | |
1420 | std::vector<Global_ifunc> global_ifuncs_; | |
1421 | // Local STT_GNU_IFUNC symbols. | |
1422 | std::vector<Local_ifunc> local_ifuncs_; | |
f5314dd5 DM |
1423 | }; |
1424 | ||
4f2a9edd ILT |
1425 | // Define the constants as required by C++ standard. |
1426 | ||
1427 | template<int size, bool big_endian> | |
1428 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1429 | ||
1430 | template<int size, bool big_endian> | |
1431 | const unsigned int | |
1432 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1433 | ||
1434 | template<int size, bool big_endian> | |
1435 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1436 | ||
1437 | template<int size, bool big_endian> | |
1438 | const unsigned int | |
1439 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1440 | ||
1441 | template<int size, bool big_endian> | |
1442 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1443 | ||
f5314dd5 DM |
1444 | // Create the PLT section. The ordinary .got section is an argument, |
1445 | // since we need to refer to the start. | |
1446 | ||
1447 | template<int size, bool big_endian> | |
1448 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
8c2bf391 DM |
1449 | : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL), |
1450 | count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_() | |
f5314dd5 | 1451 | { |
d98bc257 | 1452 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1453 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1454 | elfcpp::SHF_ALLOC, this->rel_, |
1455 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1456 | } |
1457 | ||
1458 | template<int size, bool big_endian> | |
1459 | void | |
1460 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1461 | { | |
1462 | os->set_entsize(0); | |
1463 | } | |
1464 | ||
1465 | // Add an entry to the PLT. | |
1466 | ||
1467 | template<int size, bool big_endian> | |
1468 | void | |
8c2bf391 DM |
1469 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab, |
1470 | Layout* layout, | |
1471 | Symbol* gsym) | |
f5314dd5 DM |
1472 | { |
1473 | gold_assert(!gsym->has_plt_offset()); | |
1474 | ||
f5314dd5 | 1475 | section_offset_type plt_offset; |
8c2bf391 | 1476 | unsigned int index; |
f5314dd5 | 1477 | |
8c2bf391 DM |
1478 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
1479 | && gsym->can_use_relative_reloc(false)) | |
1480 | { | |
1481 | index = this->ifunc_count_; | |
1482 | plt_offset = plt_index_to_offset(index); | |
1483 | gsym->set_plt_offset(plt_offset); | |
1484 | ++this->ifunc_count_; | |
1485 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1486 | ||
1487 | struct Global_ifunc gi; | |
1488 | gi.rel = rel; | |
1489 | gi.gsym = gsym; | |
1490 | gi.plt_index = index; | |
1491 | this->global_ifuncs_.push_back(gi); | |
1492 | } | |
f5314dd5 DM |
1493 | else |
1494 | { | |
8c2bf391 DM |
1495 | plt_offset = plt_index_to_offset(this->count_ + 4); |
1496 | gsym->set_plt_offset(plt_offset); | |
1497 | ++this->count_; | |
1498 | gsym->set_needs_dynsym_entry(); | |
1499 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1500 | plt_offset, 0); | |
1501 | } | |
f5314dd5 | 1502 | |
8c2bf391 DM |
1503 | // Note that we don't need to save the symbol. The contents of the |
1504 | // PLT are independent of which symbols are used. The symbols only | |
1505 | // appear in the relocations. | |
1506 | } | |
1507 | ||
1508 | template<int size, bool big_endian> | |
1509 | unsigned int | |
1510 | Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry( | |
1511 | Symbol_table* symtab, | |
1512 | Layout* layout, | |
1513 | Sized_relobj_file<size, big_endian>* relobj, | |
1514 | unsigned int local_sym_index) | |
1515 | { | |
1516 | unsigned int index = this->ifunc_count_; | |
1517 | section_offset_type plt_offset; | |
1518 | ||
1519 | plt_offset = plt_index_to_offset(index); | |
1520 | ++this->ifunc_count_; | |
1521 | ||
1522 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1523 | ||
1524 | struct Local_ifunc li; | |
1525 | li.rel = rel; | |
1526 | li.object = relobj; | |
1527 | li.local_sym_index = local_sym_index; | |
1528 | li.plt_index = index; | |
1529 | this->local_ifuncs_.push_back(li); | |
1530 | ||
1531 | return plt_offset; | |
1532 | } | |
1533 | ||
1534 | // Emit any pending IFUNC plt relocations. | |
1535 | ||
1536 | template<int size, bool big_endian> | |
1537 | void | |
1538 | Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs() | |
1539 | { | |
1540 | // Emit any pending IFUNC relocs. | |
1541 | for (typename std::vector<Global_ifunc>::const_iterator p = | |
1542 | this->global_ifuncs_.begin(); | |
1543 | p != this->global_ifuncs_.end(); | |
1544 | ++p) | |
1545 | { | |
1546 | section_offset_type plt_offset; | |
1547 | unsigned int index; | |
1548 | ||
1549 | index = this->count_ + p->plt_index + 4; | |
1550 | plt_offset = this->plt_index_to_offset(index); | |
1551 | p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL, | |
1552 | this, plt_offset, 0); | |
1553 | } | |
1554 | ||
1555 | for (typename std::vector<Local_ifunc>::const_iterator p = | |
1556 | this->local_ifuncs_.begin(); | |
1557 | p != this->local_ifuncs_.end(); | |
1558 | ++p) | |
1559 | { | |
1560 | section_offset_type plt_offset; | |
1561 | unsigned int index; | |
1562 | ||
1563 | index = this->count_ + p->plt_index + 4; | |
1564 | plt_offset = this->plt_index_to_offset(index); | |
1565 | p->rel->add_symbolless_local_addend(p->object, p->local_sym_index, | |
1566 | elfcpp::R_SPARC_JMP_IREL, | |
1567 | this, plt_offset, 0); | |
f5314dd5 | 1568 | } |
8c2bf391 | 1569 | } |
f5314dd5 | 1570 | |
8c2bf391 DM |
1571 | // Return where the IFUNC relocations should go in the PLT. These |
1572 | // follow the non-IFUNC relocations. | |
f5314dd5 | 1573 | |
8c2bf391 DM |
1574 | template<int size, bool big_endian> |
1575 | typename Output_data_plt_sparc<size, big_endian>::Reloc_section* | |
1576 | Output_data_plt_sparc<size, big_endian>::rela_ifunc( | |
1577 | Symbol_table* symtab, | |
1578 | Layout* layout) | |
1579 | { | |
1580 | if (this->ifunc_rel_ == NULL) | |
1581 | { | |
1582 | this->ifunc_rel_ = new Reloc_section(false); | |
1583 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, | |
1584 | elfcpp::SHF_ALLOC, this->ifunc_rel_, | |
1585 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
1586 | gold_assert(this->ifunc_rel_->output_section() | |
1587 | == this->rel_->output_section()); | |
1588 | ||
1589 | if (parameters->doing_static_link()) | |
1590 | { | |
1591 | // A statically linked executable will only have a .rel.plt | |
1592 | // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL | |
1593 | // relocs for STT_GNU_IFUNC symbols. The library will use | |
1594 | // these symbols to locate the IRELATIVE and JMP_IREL relocs | |
1595 | // at program startup time. | |
1596 | symtab->define_in_output_data("__rela_iplt_start", NULL, | |
1597 | Symbol_table::PREDEFINED, | |
1598 | this->ifunc_rel_, 0, 0, | |
1599 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1600 | elfcpp::STV_HIDDEN, 0, false, true); | |
1601 | symtab->define_in_output_data("__rela_iplt_end", NULL, | |
1602 | Symbol_table::PREDEFINED, | |
1603 | this->ifunc_rel_, 0, 0, | |
1604 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1605 | elfcpp::STV_HIDDEN, 0, true, true); | |
1606 | } | |
1607 | } | |
1608 | return this->ifunc_rel_; | |
1609 | } | |
f5314dd5 | 1610 | |
8c2bf391 | 1611 | // Return the PLT address to use for a global symbol. |
f5314dd5 | 1612 | |
8c2bf391 DM |
1613 | template<int size, bool big_endian> |
1614 | uint64_t | |
1615 | Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym) | |
1616 | { | |
1617 | uint64_t offset = 0; | |
1618 | if (gsym->type() == elfcpp::STT_GNU_IFUNC | |
1619 | && gsym->can_use_relative_reloc(false)) | |
1620 | offset = plt_index_to_offset(this->count_ + 4); | |
1621 | return this->address() + offset; | |
1622 | } | |
1623 | ||
1624 | // Return the PLT address to use for a local symbol. These are always | |
1625 | // IRELATIVE relocs. | |
1626 | ||
1627 | template<int size, bool big_endian> | |
1628 | uint64_t | |
1629 | Output_data_plt_sparc<size, big_endian>::address_for_local( | |
1630 | const Relobj*, | |
1631 | unsigned int) | |
1632 | { | |
1633 | return this->address() + plt_index_to_offset(this->count_ + 4); | |
f5314dd5 DM |
1634 | } |
1635 | ||
1636 | static const unsigned int sparc_nop = 0x01000000; | |
1637 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1638 | static const unsigned int sparc_branch_always = 0x30800000; | |
1639 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1640 | static const unsigned int sparc_mov = 0x80100000; | |
1641 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1642 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1643 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1644 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1645 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1646 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1647 | ||
1648 | // Write out the PLT. | |
1649 | ||
1650 | template<int size, bool big_endian> | |
1651 | void | |
1652 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1653 | { | |
2ea97941 | 1654 | const off_t offset = this->offset(); |
f5314dd5 DM |
1655 | const section_size_type oview_size = |
1656 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1657 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1658 | unsigned char* pov = oview; |
1659 | ||
1660 | memset(pov, 0, base_plt_entry_size * 4); | |
8c2bf391 | 1661 | pov += this->first_plt_entry_offset(); |
f5314dd5 DM |
1662 | |
1663 | unsigned int plt_offset = base_plt_entry_size * 4; | |
8c2bf391 | 1664 | const unsigned int count = this->entry_count(); |
f5314dd5 DM |
1665 | |
1666 | if (size == 64) | |
1667 | { | |
1668 | unsigned int limit; | |
1669 | ||
1670 | limit = (count > 32768 ? 32768 : count); | |
1671 | ||
1672 | for (unsigned int i = 0; i < limit; ++i) | |
1673 | { | |
1674 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1675 | sparc_sethi_g1 + plt_offset); | |
1676 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1677 | sparc_branch_always_pt + | |
1678 | (((base_plt_entry_size - | |
1679 | (plt_offset + 4)) >> 2) & | |
1680 | 0x7ffff)); | |
1681 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1682 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1683 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1684 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1685 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1686 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1687 | ||
1688 | pov += base_plt_entry_size; | |
1689 | plt_offset += base_plt_entry_size; | |
1690 | } | |
1691 | ||
1692 | if (count > 32768) | |
1693 | { | |
1694 | unsigned int ext_cnt = count - 32768; | |
1695 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1696 | ||
1697 | for (unsigned int i = 0; i < blks; ++i) | |
1698 | { | |
1699 | unsigned int data_off = (plt_entries_per_block | |
1700 | * plt_insn_chunk_size) - 4; | |
1701 | ||
1702 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1703 | { | |
1704 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1705 | sparc_mov_o7_g5); | |
1706 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1707 | sparc_call_plus_8); | |
1708 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1709 | sparc_nop); | |
1710 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1711 | sparc_ldx_o7_imm_g1 + | |
1712 | (data_off & 0x1fff)); | |
1713 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1714 | sparc_jmpl_o7_g1_g1); | |
1715 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1716 | sparc_mov_g5_o7); | |
1717 | ||
1718 | elfcpp::Swap<64, big_endian>::writeval( | |
1719 | pov + 0x4 + data_off, | |
1720 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1721 | ||
1722 | pov += plt_insn_chunk_size; | |
1723 | data_off -= 16; | |
1724 | } | |
1725 | } | |
1726 | ||
1727 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1728 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1729 | { | |
1730 | unsigned int data_off = (sub_blk_cnt | |
1731 | * plt_insn_chunk_size) - 4; | |
1732 | ||
1733 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1734 | { | |
1735 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1736 | sparc_mov_o7_g5); | |
1737 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1738 | sparc_call_plus_8); | |
1739 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1740 | sparc_nop); | |
1741 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1742 | sparc_ldx_o7_imm_g1 + | |
1743 | (data_off & 0x1fff)); | |
1744 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1745 | sparc_jmpl_o7_g1_g1); | |
1746 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1747 | sparc_mov_g5_o7); | |
1748 | ||
1749 | elfcpp::Swap<64, big_endian>::writeval( | |
1750 | pov + 0x4 + data_off, | |
1751 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1752 | ||
1753 | pov += plt_insn_chunk_size; | |
1754 | data_off -= 16; | |
1755 | } | |
1756 | } | |
1757 | } | |
1758 | } | |
1759 | else | |
1760 | { | |
1761 | for (unsigned int i = 0; i < count; ++i) | |
1762 | { | |
1763 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1764 | sparc_sethi_g1 + plt_offset); | |
1765 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1766 | sparc_branch_always + | |
1767 | (((- (plt_offset + 4)) >> 2) & | |
1768 | 0x003fffff)); | |
1769 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1770 | ||
1771 | pov += base_plt_entry_size; | |
1772 | plt_offset += base_plt_entry_size; | |
1773 | } | |
1774 | ||
1775 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1776 | pov += 4; | |
1777 | } | |
1778 | ||
1779 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1780 | ||
2ea97941 | 1781 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1782 | } |
1783 | ||
8c2bf391 DM |
1784 | // Create the PLT section. |
1785 | ||
1786 | template<int size, bool big_endian> | |
1787 | void | |
1788 | Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab, | |
1789 | Layout* layout) | |
1790 | { | |
1791 | // Create the GOT sections first. | |
1792 | this->got_section(symtab, layout); | |
1793 | ||
1794 | // Ensure that .rela.dyn always appears before .rela.plt This is | |
1795 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1796 | // needs to include .rela.plt in it's range. | |
1797 | this->rela_dyn_section(layout); | |
1798 | ||
1799 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); | |
1800 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1801 | (elfcpp::SHF_ALLOC | |
1802 | | elfcpp::SHF_EXECINSTR | |
1803 | | elfcpp::SHF_WRITE), | |
1804 | this->plt_, ORDER_NON_RELRO_FIRST, false); | |
1805 | ||
1806 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1807 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
1808 | Symbol_table::PREDEFINED, | |
1809 | this->plt_, | |
1810 | 0, 0, elfcpp::STT_OBJECT, | |
1811 | elfcpp::STB_LOCAL, | |
1812 | elfcpp::STV_HIDDEN, 0, | |
1813 | false, false); | |
1814 | } | |
1815 | ||
f5314dd5 DM |
1816 | // Create a PLT entry for a global symbol. |
1817 | ||
1818 | template<int size, bool big_endian> | |
1819 | void | |
1820 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1821 | Layout* layout, | |
1822 | Symbol* gsym) | |
1823 | { | |
1824 | if (gsym->has_plt_offset()) | |
1825 | return; | |
1826 | ||
1827 | if (this->plt_ == NULL) | |
8c2bf391 | 1828 | this->make_plt_section(symtab, layout); |
f5314dd5 | 1829 | |
8c2bf391 DM |
1830 | this->plt_->add_entry(symtab, layout, gsym); |
1831 | } | |
f5314dd5 | 1832 | |
8c2bf391 | 1833 | // Make a PLT entry for a local STT_GNU_IFUNC symbol. |
f5314dd5 | 1834 | |
8c2bf391 DM |
1835 | template<int size, bool big_endian> |
1836 | void | |
1837 | Target_sparc<size, big_endian>::make_local_ifunc_plt_entry( | |
1838 | Symbol_table* symtab, | |
1839 | Layout* layout, | |
1840 | Sized_relobj_file<size, big_endian>* relobj, | |
1841 | unsigned int local_sym_index) | |
1842 | { | |
1843 | if (relobj->local_has_plt_offset(local_sym_index)) | |
1844 | return; | |
1845 | if (this->plt_ == NULL) | |
1846 | this->make_plt_section(symtab, layout); | |
1847 | unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, | |
1848 | relobj, | |
1849 | local_sym_index); | |
1850 | relobj->set_local_plt_offset(local_sym_index, plt_offset); | |
f5314dd5 DM |
1851 | } |
1852 | ||
0e70b911 CC |
1853 | // Return the number of entries in the PLT. |
1854 | ||
1855 | template<int size, bool big_endian> | |
1856 | unsigned int | |
1857 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1858 | { | |
1859 | if (this->plt_ == NULL) | |
1860 | return 0; | |
1861 | return this->plt_->entry_count(); | |
1862 | } | |
1863 | ||
1864 | // Return the offset of the first non-reserved PLT entry. | |
1865 | ||
1866 | template<int size, bool big_endian> | |
1867 | unsigned int | |
1868 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1869 | { | |
1870 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1871 | } | |
1872 | ||
1873 | // Return the size of each PLT entry. | |
1874 | ||
1875 | template<int size, bool big_endian> | |
1876 | unsigned int | |
1877 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1878 | { | |
1879 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1880 | } | |
1881 | ||
f5314dd5 DM |
1882 | // Create a GOT entry for the TLS module index. |
1883 | ||
1884 | template<int size, bool big_endian> | |
1885 | unsigned int | |
6fa2a40b CC |
1886 | Target_sparc<size, big_endian>::got_mod_index_entry( |
1887 | Symbol_table* symtab, | |
1888 | Layout* layout, | |
1889 | Sized_relobj_file<size, big_endian>* object) | |
f5314dd5 DM |
1890 | { |
1891 | if (this->got_mod_index_offset_ == -1U) | |
1892 | { | |
1893 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1894 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1895 | Output_data_got<size, big_endian>* got; | |
1896 | unsigned int got_offset; | |
1897 | ||
1898 | got = this->got_section(symtab, layout); | |
1899 | got_offset = got->add_constant(0); | |
1900 | rela_dyn->add_local(object, 0, | |
1901 | (size == 64 ? | |
1902 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1903 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1904 | got_offset, 0); | |
1905 | got->add_constant(0); | |
1906 | this->got_mod_index_offset_ = got_offset; | |
1907 | } | |
1908 | return this->got_mod_index_offset_; | |
1909 | } | |
1910 | ||
f5314dd5 DM |
1911 | // Optimize the TLS relocation type based on what we know about the |
1912 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1913 | // known at link time. | |
1914 | ||
1915 | static tls::Tls_optimization | |
1916 | optimize_tls_reloc(bool is_final, int r_type) | |
1917 | { | |
1918 | // If we are generating a shared library, then we can't do anything | |
1919 | // in the linker. | |
1920 | if (parameters->options().shared()) | |
1921 | return tls::TLSOPT_NONE; | |
1922 | ||
1923 | switch (r_type) | |
1924 | { | |
1925 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1926 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1927 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1928 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1929 | // These are General-Dynamic which permits fully general TLS | |
1930 | // access. Since we know that we are generating an executable, | |
1931 | // we can convert this to Initial-Exec. If we also know that | |
1932 | // this is a local symbol, we can further switch to Local-Exec. | |
1933 | if (is_final) | |
1934 | return tls::TLSOPT_TO_LE; | |
1935 | return tls::TLSOPT_TO_IE; | |
1936 | ||
1937 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1938 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1939 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1940 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1941 | // This is Local-Dynamic, which refers to a local symbol in the | |
1942 | // dynamic TLS block. Since we know that we generating an | |
1943 | // executable, we can switch to Local-Exec. | |
1944 | return tls::TLSOPT_TO_LE; | |
1945 | ||
1946 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1947 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1948 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1949 | // Another type of Local-Dynamic relocation. | |
1950 | return tls::TLSOPT_TO_LE; | |
1951 | ||
1952 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1953 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1954 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1955 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1956 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1957 | // These are Initial-Exec relocs which get the thread offset |
1958 | // from the GOT. If we know that we are linking against the | |
1959 | // local symbol, we can switch to Local-Exec, which links the | |
1960 | // thread offset into the instruction. | |
1961 | if (is_final) | |
1962 | return tls::TLSOPT_TO_LE; | |
1963 | return tls::TLSOPT_NONE; | |
1964 | ||
1965 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1966 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1967 | // When we already have Local-Exec, there is nothing further we | |
1968 | // can do. | |
1969 | return tls::TLSOPT_NONE; | |
1970 | ||
1971 | default: | |
1972 | gold_unreachable(); | |
1973 | } | |
1974 | } | |
1975 | ||
95a2c8d6 RS |
1976 | // Get the Reference_flags for a particular relocation. |
1977 | ||
1978 | template<int size, bool big_endian> | |
1979 | int | |
1980 | Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) | |
1981 | { | |
1982 | r_type &= 0xff; | |
1983 | switch (r_type) | |
1984 | { | |
1985 | case elfcpp::R_SPARC_NONE: | |
1986 | case elfcpp::R_SPARC_REGISTER: | |
1987 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1988 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1989 | // No symbol reference. | |
1990 | return 0; | |
1991 | ||
1992 | case elfcpp::R_SPARC_UA64: | |
1993 | case elfcpp::R_SPARC_64: | |
1994 | case elfcpp::R_SPARC_HIX22: | |
1995 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 1996 | case elfcpp::R_SPARC_H34: |
95a2c8d6 RS |
1997 | case elfcpp::R_SPARC_H44: |
1998 | case elfcpp::R_SPARC_M44: | |
1999 | case elfcpp::R_SPARC_L44: | |
2000 | case elfcpp::R_SPARC_HH22: | |
2001 | case elfcpp::R_SPARC_HM10: | |
2002 | case elfcpp::R_SPARC_LM22: | |
2003 | case elfcpp::R_SPARC_HI22: | |
2004 | case elfcpp::R_SPARC_LO10: | |
2005 | case elfcpp::R_SPARC_OLO10: | |
2006 | case elfcpp::R_SPARC_UA32: | |
2007 | case elfcpp::R_SPARC_32: | |
2008 | case elfcpp::R_SPARC_UA16: | |
2009 | case elfcpp::R_SPARC_16: | |
2010 | case elfcpp::R_SPARC_11: | |
2011 | case elfcpp::R_SPARC_10: | |
2012 | case elfcpp::R_SPARC_8: | |
2013 | case elfcpp::R_SPARC_7: | |
2014 | case elfcpp::R_SPARC_6: | |
2015 | case elfcpp::R_SPARC_5: | |
2016 | return Symbol::ABSOLUTE_REF; | |
2017 | ||
2018 | case elfcpp::R_SPARC_DISP8: | |
2019 | case elfcpp::R_SPARC_DISP16: | |
2020 | case elfcpp::R_SPARC_DISP32: | |
2021 | case elfcpp::R_SPARC_DISP64: | |
2022 | case elfcpp::R_SPARC_PC_HH22: | |
2023 | case elfcpp::R_SPARC_PC_HM10: | |
2024 | case elfcpp::R_SPARC_PC_LM22: | |
2025 | case elfcpp::R_SPARC_PC10: | |
2026 | case elfcpp::R_SPARC_PC22: | |
2027 | case elfcpp::R_SPARC_WDISP30: | |
2028 | case elfcpp::R_SPARC_WDISP22: | |
2029 | case elfcpp::R_SPARC_WDISP19: | |
2030 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2031 | case elfcpp::R_SPARC_WDISP10: |
95a2c8d6 RS |
2032 | return Symbol::RELATIVE_REF; |
2033 | ||
2034 | case elfcpp::R_SPARC_PLT64: | |
2035 | case elfcpp::R_SPARC_PLT32: | |
2036 | case elfcpp::R_SPARC_HIPLT22: | |
2037 | case elfcpp::R_SPARC_LOPLT10: | |
2038 | case elfcpp::R_SPARC_PCPLT10: | |
2039 | return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF; | |
2040 | ||
2041 | case elfcpp::R_SPARC_PCPLT32: | |
2042 | case elfcpp::R_SPARC_PCPLT22: | |
2043 | case elfcpp::R_SPARC_WPLT30: | |
2044 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; | |
2045 | ||
2046 | case elfcpp::R_SPARC_GOTDATA_OP: | |
2047 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2048 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2049 | case elfcpp::R_SPARC_GOT10: | |
2050 | case elfcpp::R_SPARC_GOT13: | |
2051 | case elfcpp::R_SPARC_GOT22: | |
2052 | // Absolute in GOT. | |
2053 | return Symbol::ABSOLUTE_REF; | |
2054 | ||
2055 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2056 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2057 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2058 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2059 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2060 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2061 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2062 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2063 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2064 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2065 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2066 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2067 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2068 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2069 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2070 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2071 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
2072 | case elfcpp::R_SPARC_TLS_IE_ADD: | |
2073 | return Symbol::TLS_REF; | |
2074 | ||
2075 | case elfcpp::R_SPARC_COPY: | |
2076 | case elfcpp::R_SPARC_GLOB_DAT: | |
2077 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2078 | case elfcpp::R_SPARC_JMP_IREL: |
95a2c8d6 | 2079 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2080 | case elfcpp::R_SPARC_IRELATIVE: |
95a2c8d6 RS |
2081 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2082 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2083 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2084 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2085 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2086 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2087 | default: | |
2088 | // Not expected. We will give an error later. | |
2089 | return 0; | |
2090 | } | |
2091 | } | |
2092 | ||
f5314dd5 DM |
2093 | // Generate a PLT entry slot for a call to __tls_get_addr |
2094 | template<int size, bool big_endian> | |
2095 | void | |
2096 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
2097 | Layout* layout, | |
2098 | Target_sparc<size, big_endian>* target) | |
2099 | { | |
2100 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
2101 | ||
2102 | target->make_plt_entry(symtab, layout, gsym); | |
2103 | } | |
2104 | ||
2105 | // Report an unsupported relocation against a local symbol. | |
2106 | ||
2107 | template<int size, bool big_endian> | |
2108 | void | |
2109 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
6fa2a40b | 2110 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2111 | unsigned int r_type) |
2112 | { | |
2113 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
2114 | object->name().c_str(), r_type); | |
2115 | } | |
2116 | ||
32b769e1 DM |
2117 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
2118 | // dynamic linker does not support it, issue an error. | |
2119 | ||
2120 | template<int size, bool big_endian> | |
2121 | void | |
2122 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
2123 | { | |
2124 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
2125 | ||
2126 | if (size == 64) | |
2127 | { | |
2128 | switch (r_type) | |
2129 | { | |
2130 | // These are the relocation types supported by glibc for sparc 64-bit. | |
2131 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2132 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2133 | case elfcpp::R_SPARC_COPY: |
2134 | case elfcpp::R_SPARC_64: | |
2135 | case elfcpp::R_SPARC_GLOB_DAT: | |
2136 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2137 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2138 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2139 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2140 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2141 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2142 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2143 | case elfcpp::R_SPARC_8: | |
2144 | case elfcpp::R_SPARC_16: | |
2145 | case elfcpp::R_SPARC_DISP8: | |
2146 | case elfcpp::R_SPARC_DISP16: | |
2147 | case elfcpp::R_SPARC_DISP32: | |
2148 | case elfcpp::R_SPARC_WDISP30: | |
2149 | case elfcpp::R_SPARC_LO10: | |
2150 | case elfcpp::R_SPARC_HI22: | |
2151 | case elfcpp::R_SPARC_OLO10: | |
2615994e | 2152 | case elfcpp::R_SPARC_H34: |
32b769e1 DM |
2153 | case elfcpp::R_SPARC_H44: |
2154 | case elfcpp::R_SPARC_M44: | |
2155 | case elfcpp::R_SPARC_L44: | |
2156 | case elfcpp::R_SPARC_HH22: | |
2157 | case elfcpp::R_SPARC_HM10: | |
2158 | case elfcpp::R_SPARC_LM22: | |
2159 | case elfcpp::R_SPARC_UA16: | |
2160 | case elfcpp::R_SPARC_UA32: | |
2161 | case elfcpp::R_SPARC_UA64: | |
2162 | return; | |
2163 | ||
2164 | default: | |
2165 | break; | |
2166 | } | |
2167 | } | |
2168 | else | |
2169 | { | |
2170 | switch (r_type) | |
2171 | { | |
2172 | // These are the relocation types supported by glibc for sparc 32-bit. | |
2173 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2174 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2175 | case elfcpp::R_SPARC_COPY: |
2176 | case elfcpp::R_SPARC_GLOB_DAT: | |
2177 | case elfcpp::R_SPARC_32: | |
2178 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2179 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2180 | case elfcpp::R_SPARC_TLS_DTPMOD32: |
2181 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2182 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2183 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2184 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2185 | case elfcpp::R_SPARC_8: | |
2186 | case elfcpp::R_SPARC_16: | |
2187 | case elfcpp::R_SPARC_DISP8: | |
2188 | case elfcpp::R_SPARC_DISP16: | |
2189 | case elfcpp::R_SPARC_DISP32: | |
2190 | case elfcpp::R_SPARC_LO10: | |
2191 | case elfcpp::R_SPARC_WDISP30: | |
2192 | case elfcpp::R_SPARC_HI22: | |
2193 | case elfcpp::R_SPARC_UA16: | |
2194 | case elfcpp::R_SPARC_UA32: | |
2195 | return; | |
2196 | ||
2197 | default: | |
2198 | break; | |
2199 | } | |
2200 | } | |
2201 | ||
2202 | // This prevents us from issuing more than one error per reloc | |
2203 | // section. But we can still wind up issuing more than one | |
2204 | // error per object file. | |
2205 | if (this->issued_non_pic_error_) | |
2206 | return; | |
33aea2fd | 2207 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
2208 | object->error(_("requires unsupported dynamic reloc; " |
2209 | "recompile with -fPIC")); | |
2210 | this->issued_non_pic_error_ = true; | |
2211 | return; | |
2212 | } | |
2213 | ||
8c2bf391 DM |
2214 | // Return whether we need to make a PLT entry for a relocation of the |
2215 | // given type against a STT_GNU_IFUNC symbol. | |
2216 | ||
2217 | template<int size, bool big_endian> | |
2218 | bool | |
2219 | Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( | |
2220 | Sized_relobj_file<size, big_endian>* object, | |
2221 | unsigned int r_type) | |
2222 | { | |
2223 | int flags = Scan::get_reference_flags(r_type); | |
2224 | if (flags & Symbol::TLS_REF) | |
2225 | gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), | |
2e702c99 | 2226 | object->name().c_str(), r_type); |
8c2bf391 DM |
2227 | return flags != 0; |
2228 | } | |
2229 | ||
f5314dd5 DM |
2230 | // Scan a relocation for a local symbol. |
2231 | ||
2232 | template<int size, bool big_endian> | |
2233 | inline void | |
2234 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
2235 | Symbol_table* symtab, |
2236 | Layout* layout, | |
2237 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2238 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2239 | unsigned int data_shndx, |
2240 | Output_section* output_section, | |
2241 | const elfcpp::Rela<size, big_endian>& reloc, | |
2242 | unsigned int r_type, | |
2243 | const elfcpp::Sym<size, big_endian>& lsym) | |
2244 | { | |
8c2bf391 | 2245 | bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2246 | unsigned int orig_r_type = r_type; |
f5314dd5 | 2247 | r_type &= 0xff; |
8c2bf391 DM |
2248 | |
2249 | if (is_ifunc | |
2250 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2251 | { | |
2252 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2253 | target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); | |
2254 | } | |
2255 | ||
f5314dd5 DM |
2256 | switch (r_type) |
2257 | { | |
2258 | case elfcpp::R_SPARC_NONE: | |
2259 | case elfcpp::R_SPARC_REGISTER: | |
2260 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2261 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2262 | break; | |
2263 | ||
2264 | case elfcpp::R_SPARC_64: | |
2265 | case elfcpp::R_SPARC_32: | |
2266 | // If building a shared library (or a position-independent | |
2267 | // executable), we need to create a dynamic relocation for | |
2268 | // this location. The relocation applied at link time will | |
2269 | // apply the link-time value, so we flag the location with | |
2270 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
2271 | // relocate it easily. | |
2272 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2273 | { |
2274 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2275 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2276 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2277 | output_section, data_shndx, |
2278 | reloc.get_r_offset(), | |
8c2bf391 | 2279 | reloc.get_r_addend(), is_ifunc); |
2e702c99 | 2280 | } |
f5314dd5 DM |
2281 | break; |
2282 | ||
2283 | case elfcpp::R_SPARC_HIX22: | |
2284 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2285 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2286 | case elfcpp::R_SPARC_H44: |
2287 | case elfcpp::R_SPARC_M44: | |
2288 | case elfcpp::R_SPARC_L44: | |
2289 | case elfcpp::R_SPARC_HH22: | |
2290 | case elfcpp::R_SPARC_HM10: | |
2291 | case elfcpp::R_SPARC_LM22: | |
2292 | case elfcpp::R_SPARC_UA64: | |
2293 | case elfcpp::R_SPARC_UA32: | |
2294 | case elfcpp::R_SPARC_UA16: | |
2295 | case elfcpp::R_SPARC_HI22: | |
2296 | case elfcpp::R_SPARC_LO10: | |
2297 | case elfcpp::R_SPARC_OLO10: | |
2298 | case elfcpp::R_SPARC_16: | |
2299 | case elfcpp::R_SPARC_11: | |
2300 | case elfcpp::R_SPARC_10: | |
2301 | case elfcpp::R_SPARC_8: | |
2302 | case elfcpp::R_SPARC_7: | |
2303 | case elfcpp::R_SPARC_6: | |
2304 | case elfcpp::R_SPARC_5: | |
2305 | // If building a shared library (or a position-independent | |
2306 | // executable), we need to create a dynamic relocation for | |
2307 | // this location. | |
2308 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2309 | { |
2310 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2311 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
32b769e1 DM |
2312 | |
2313 | check_non_pic(object, r_type); | |
2e702c99 RM |
2314 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
2315 | { | |
2316 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, | |
f5314dd5 DM |
2317 | data_shndx, reloc.get_r_offset(), |
2318 | reloc.get_r_addend()); | |
2e702c99 RM |
2319 | } |
2320 | else | |
2321 | { | |
2322 | gold_assert(lsym.get_st_value() == 0); | |
0da6fa6c DM |
2323 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
2324 | output_section, data_shndx, | |
2325 | reloc.get_r_offset(), | |
2326 | reloc.get_r_addend()); | |
2e702c99 RM |
2327 | } |
2328 | } | |
f5314dd5 DM |
2329 | break; |
2330 | ||
2331 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 2332 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
2333 | case elfcpp::R_SPARC_WDISP22: |
2334 | case elfcpp::R_SPARC_WDISP19: | |
2335 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2336 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2337 | case elfcpp::R_SPARC_DISP8: |
2338 | case elfcpp::R_SPARC_DISP16: | |
2339 | case elfcpp::R_SPARC_DISP32: | |
2340 | case elfcpp::R_SPARC_DISP64: | |
2341 | case elfcpp::R_SPARC_PC10: | |
2342 | case elfcpp::R_SPARC_PC22: | |
2343 | break; | |
2344 | ||
024c4466 DM |
2345 | case elfcpp::R_SPARC_GOTDATA_OP: |
2346 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2347 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
2348 | // We will optimize this into a GOT relative relocation |
2349 | // and code transform the GOT load into an addition. | |
2350 | break; | |
2351 | ||
f5314dd5 DM |
2352 | case elfcpp::R_SPARC_GOT10: |
2353 | case elfcpp::R_SPARC_GOT13: | |
2354 | case elfcpp::R_SPARC_GOT22: | |
2355 | { | |
2e702c99 RM |
2356 | // The symbol requires a GOT entry. |
2357 | Output_data_got<size, big_endian>* got; | |
2358 | unsigned int r_sym; | |
f5314dd5 DM |
2359 | |
2360 | got = target->got_section(symtab, layout); | |
2361 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2362 | ||
2363 | // If we are generating a shared object, we need to add a | |
2364 | // dynamic relocation for this symbol's GOT entry. | |
2365 | if (parameters->options().output_is_position_independent()) | |
2366 | { | |
2367 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
2368 | { | |
2369 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
8c2bf391 | 2370 | unsigned int off = got->add_constant(0); |
f5314dd5 DM |
2371 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); |
2372 | rela_dyn->add_local_relative(object, r_sym, | |
2373 | elfcpp::R_SPARC_RELATIVE, | |
8c2bf391 | 2374 | got, off, 0, is_ifunc); |
f5314dd5 DM |
2375 | } |
2376 | } | |
2377 | else | |
2378 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
2379 | } | |
2380 | break; | |
2381 | ||
2382 | // These are initial TLS relocs, which are expected when | |
2383 | // linking. | |
2384 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2385 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2386 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2387 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2388 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2389 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2390 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2391 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2392 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2393 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2394 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2395 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2396 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2397 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2398 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2399 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2400 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
2401 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2402 | { | |
2403 | bool output_is_shared = parameters->options().shared(); | |
2404 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2405 | = optimize_tls_reloc(!output_is_shared, r_type); |
f5314dd5 DM |
2406 | switch (r_type) |
2407 | { | |
2408 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2409 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2410 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2411 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2412 | if (optimized_type == tls::TLSOPT_NONE) | |
2413 | { | |
2e702c99 RM |
2414 | // Create a pair of GOT entries for the module index and |
2415 | // dtv-relative offset. | |
2416 | Output_data_got<size, big_endian>* got | |
2417 | = target->got_section(symtab, layout); | |
2418 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
2419 | unsigned int shndx = lsym.get_st_shndx(); |
2420 | bool is_ordinary; | |
2421 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
2422 | if (!is_ordinary) | |
2423 | object->error(_("local symbol %u has bad shndx %u"), | |
2424 | r_sym, shndx); | |
2425 | else | |
2e702c99 | 2426 | got->add_local_pair_with_rel(object, r_sym, |
83896202 ILT |
2427 | lsym.get_st_shndx(), |
2428 | GOT_TYPE_TLS_PAIR, | |
2429 | target->rela_dyn_section(layout), | |
2430 | (size == 64 | |
2431 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
bd73a62d | 2432 | : elfcpp::R_SPARC_TLS_DTPMOD32)); |
f5314dd5 DM |
2433 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
2434 | generate_tls_call(symtab, layout, target); | |
2435 | } | |
2436 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2437 | unsupported_reloc_local(object, r_type); | |
2438 | break; | |
2439 | ||
2440 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2441 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2442 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2443 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2444 | if (optimized_type == tls::TLSOPT_NONE) | |
2445 | { | |
2446 | // Create a GOT entry for the module index. | |
2447 | target->got_mod_index_entry(symtab, layout, object); | |
2448 | ||
2449 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2450 | generate_tls_call(symtab, layout, target); | |
2451 | } | |
2452 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2453 | unsupported_reloc_local(object, r_type); | |
2454 | break; | |
2455 | ||
2456 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2457 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2458 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2459 | break; | |
2460 | ||
2461 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2462 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2463 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2464 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2465 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2466 | layout->set_has_static_tls(); |
2467 | if (optimized_type == tls::TLSOPT_NONE) | |
2468 | { | |
2469 | // Create a GOT entry for the tp-relative offset. | |
2470 | Output_data_got<size, big_endian>* got | |
2471 | = target->got_section(symtab, layout); | |
2472 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2473 | ||
2474 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
2475 | { | |
2476 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2477 | unsigned int off = got->add_constant(0); |
2478 | ||
2479 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 2480 | |
0da6fa6c DM |
2481 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
2482 | (size == 64 ? | |
2483 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2484 | elfcpp::R_SPARC_TLS_TPOFF32), | |
2485 | got, off, 0); | |
f5314dd5 DM |
2486 | } |
2487 | } | |
2488 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2489 | unsupported_reloc_local(object, r_type); | |
2490 | break; | |
2491 | ||
2492 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
2493 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2494 | layout->set_has_static_tls(); | |
2495 | if (output_is_shared) | |
2496 | { | |
2e702c99 RM |
2497 | // We need to create a dynamic relocation. |
2498 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
2499 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2500 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2501 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, | |
0da6fa6c DM |
2502 | output_section, data_shndx, |
2503 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
2504 | } |
2505 | break; | |
2506 | } | |
2507 | } | |
2508 | break; | |
2509 | ||
2510 | // These are relocations which should only be seen by the | |
2511 | // dynamic linker, and should never be seen here. | |
2512 | case elfcpp::R_SPARC_COPY: | |
2513 | case elfcpp::R_SPARC_GLOB_DAT: | |
2514 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2515 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2516 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2517 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2518 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2519 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2520 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2521 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2522 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2523 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2524 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2525 | object->name().c_str(), r_type); | |
2526 | break; | |
2527 | ||
2528 | default: | |
2529 | unsupported_reloc_local(object, r_type); | |
2530 | break; | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | // Report an unsupported relocation against a global symbol. | |
2535 | ||
2536 | template<int size, bool big_endian> | |
2537 | void | |
2538 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
6fa2a40b | 2539 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2540 | unsigned int r_type, |
2541 | Symbol* gsym) | |
2542 | { | |
2543 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
2544 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
2545 | } | |
2546 | ||
2547 | // Scan a relocation for a global symbol. | |
2548 | ||
2549 | template<int size, bool big_endian> | |
2550 | inline void | |
2551 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2552 | Symbol_table* symtab, |
2553 | Layout* layout, | |
2554 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2555 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2556 | unsigned int data_shndx, |
2557 | Output_section* output_section, | |
2558 | const elfcpp::Rela<size, big_endian>& reloc, | |
2559 | unsigned int r_type, | |
2560 | Symbol* gsym) | |
2561 | { | |
2562 | unsigned int orig_r_type = r_type; | |
8c2bf391 | 2563 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2564 | |
9efe6174 ILT |
2565 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2566 | // section. We check here to avoid creating a dynamic reloc against | |
2567 | // _GLOBAL_OFFSET_TABLE_. | |
2568 | if (!target->has_got_section() | |
2569 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2570 | target->got_section(symtab, layout); | |
2571 | ||
f5314dd5 | 2572 | r_type &= 0xff; |
8c2bf391 DM |
2573 | |
2574 | // A STT_GNU_IFUNC symbol may require a PLT entry. | |
2575 | if (is_ifunc | |
2576 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2577 | target->make_plt_entry(symtab, layout, gsym); | |
2578 | ||
f5314dd5 DM |
2579 | switch (r_type) |
2580 | { | |
2581 | case elfcpp::R_SPARC_NONE: | |
2582 | case elfcpp::R_SPARC_REGISTER: | |
2583 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2584 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2585 | break; | |
2586 | ||
2587 | case elfcpp::R_SPARC_PLT64: | |
2588 | case elfcpp::R_SPARC_PLT32: | |
2589 | case elfcpp::R_SPARC_HIPLT22: | |
2590 | case elfcpp::R_SPARC_LOPLT10: | |
2591 | case elfcpp::R_SPARC_PCPLT32: | |
2592 | case elfcpp::R_SPARC_PCPLT22: | |
2593 | case elfcpp::R_SPARC_PCPLT10: | |
2594 | case elfcpp::R_SPARC_WPLT30: | |
2595 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2596 | // Otherwise we need a PLT entry. | |
2597 | if (gsym->final_value_is_known()) | |
2598 | break; | |
2599 | // If building a shared library, we can also skip the PLT entry | |
2600 | // if the symbol is defined in the output file and is protected | |
2601 | // or hidden. | |
2602 | if (gsym->is_defined() | |
2e702c99 RM |
2603 | && !gsym->is_from_dynobj() |
2604 | && !gsym->is_preemptible()) | |
f5314dd5 DM |
2605 | break; |
2606 | target->make_plt_entry(symtab, layout, gsym); | |
2607 | break; | |
2608 | ||
2609 | case elfcpp::R_SPARC_DISP8: | |
2610 | case elfcpp::R_SPARC_DISP16: | |
2611 | case elfcpp::R_SPARC_DISP32: | |
2612 | case elfcpp::R_SPARC_DISP64: | |
2613 | case elfcpp::R_SPARC_PC_HH22: | |
2614 | case elfcpp::R_SPARC_PC_HM10: | |
2615 | case elfcpp::R_SPARC_PC_LM22: | |
2616 | case elfcpp::R_SPARC_PC10: | |
2617 | case elfcpp::R_SPARC_PC22: | |
2618 | case elfcpp::R_SPARC_WDISP30: | |
2619 | case elfcpp::R_SPARC_WDISP22: | |
2620 | case elfcpp::R_SPARC_WDISP19: | |
2621 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2622 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2623 | { |
2624 | if (gsym->needs_plt_entry()) | |
2625 | target->make_plt_entry(symtab, layout, gsym); | |
2626 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2627 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2628 | { |
966d4097 | 2629 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2630 | { |
12c0daef | 2631 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2632 | data_shndx, output_section, gsym, |
2633 | reloc); | |
2634 | } | |
2635 | else | |
2636 | { | |
2637 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2638 | check_non_pic(object, r_type); |
f5314dd5 DM |
2639 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2640 | data_shndx, reloc.get_r_offset(), | |
2641 | reloc.get_r_addend()); | |
2642 | } | |
2643 | } | |
2644 | } | |
2645 | break; | |
2646 | ||
2647 | case elfcpp::R_SPARC_UA64: | |
2648 | case elfcpp::R_SPARC_64: | |
2649 | case elfcpp::R_SPARC_HIX22: | |
2650 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2651 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2652 | case elfcpp::R_SPARC_H44: |
2653 | case elfcpp::R_SPARC_M44: | |
2654 | case elfcpp::R_SPARC_L44: | |
2655 | case elfcpp::R_SPARC_HH22: | |
2656 | case elfcpp::R_SPARC_HM10: | |
2657 | case elfcpp::R_SPARC_LM22: | |
2658 | case elfcpp::R_SPARC_HI22: | |
2659 | case elfcpp::R_SPARC_LO10: | |
2660 | case elfcpp::R_SPARC_OLO10: | |
2661 | case elfcpp::R_SPARC_UA32: | |
2662 | case elfcpp::R_SPARC_32: | |
2663 | case elfcpp::R_SPARC_UA16: | |
2664 | case elfcpp::R_SPARC_16: | |
2665 | case elfcpp::R_SPARC_11: | |
2666 | case elfcpp::R_SPARC_10: | |
2667 | case elfcpp::R_SPARC_8: | |
2668 | case elfcpp::R_SPARC_7: | |
2669 | case elfcpp::R_SPARC_6: | |
2670 | case elfcpp::R_SPARC_5: | |
2671 | { | |
2e702c99 RM |
2672 | // Make a PLT entry if necessary. |
2673 | if (gsym->needs_plt_entry()) | |
2674 | { | |
2675 | target->make_plt_entry(symtab, layout, gsym); | |
2676 | // Since this is not a PC-relative relocation, we may be | |
2677 | // taking the address of a function. In that case we need to | |
2678 | // set the entry in the dynamic symbol table to the address of | |
2679 | // the PLT entry. | |
2680 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2681 | gsym->set_needs_dynsym_value(); | |
2682 | } | |
2683 | // Make a dynamic relocation if necessary. | |
2684 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) | |
2685 | { | |
0da6fa6c DM |
2686 | unsigned int r_off = reloc.get_r_offset(); |
2687 | ||
2688 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 2689 | // for dwarf2 cfi directives. |
0da6fa6c DM |
2690 | switch (r_type) |
2691 | { | |
2692 | case elfcpp::R_SPARC_16: | |
2693 | if (r_off & 0x1) | |
2694 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2695 | break; | |
2696 | case elfcpp::R_SPARC_32: | |
2697 | if (r_off & 0x3) | |
2698 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2699 | break; | |
2700 | case elfcpp::R_SPARC_64: | |
2701 | if (r_off & 0x7) | |
2702 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2703 | break; | |
2704 | case elfcpp::R_SPARC_UA16: | |
2705 | if (!(r_off & 0x1)) | |
2706 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2707 | break; | |
2708 | case elfcpp::R_SPARC_UA32: | |
2709 | if (!(r_off & 0x3)) | |
2710 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2711 | break; | |
2712 | case elfcpp::R_SPARC_UA64: | |
2713 | if (!(r_off & 0x7)) | |
2714 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2715 | break; | |
2716 | } | |
2717 | ||
2e702c99 RM |
2718 | if (gsym->may_need_copy_reloc()) |
2719 | { | |
2720 | target->copy_reloc(symtab, layout, object, | |
2721 | data_shndx, output_section, gsym, reloc); | |
2722 | } | |
8c2bf391 DM |
2723 | else if (((size == 64 && r_type == elfcpp::R_SPARC_64) |
2724 | || (size == 32 && r_type == elfcpp::R_SPARC_32)) | |
2725 | && gsym->type() == elfcpp::STT_GNU_IFUNC | |
2726 | && gsym->can_use_relative_reloc(false) | |
2727 | && !gsym->is_from_dynobj() | |
2728 | && !gsym->is_undefined() | |
2729 | && !gsym->is_preemptible()) | |
2730 | { | |
2731 | // Use an IRELATIVE reloc for a locally defined | |
2732 | // STT_GNU_IFUNC symbol. This makes a function | |
2733 | // address in a PIE executable match the address in a | |
2734 | // shared library that it links against. | |
2735 | Reloc_section* rela_dyn = | |
2736 | target->rela_ifunc_section(layout); | |
2737 | unsigned int r_type = elfcpp::R_SPARC_IRELATIVE; | |
2738 | rela_dyn->add_symbolless_global_addend(gsym, r_type, | |
2739 | output_section, object, | |
2740 | data_shndx, | |
2741 | reloc.get_r_offset(), | |
2742 | reloc.get_r_addend()); | |
2743 | } | |
2e702c99 | 2744 | else if ((r_type == elfcpp::R_SPARC_32 |
f5314dd5 | 2745 | || r_type == elfcpp::R_SPARC_64) |
2e702c99 RM |
2746 | && gsym->can_use_relative_reloc(false)) |
2747 | { | |
2748 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2749 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2750 | output_section, object, |
2751 | data_shndx, reloc.get_r_offset(), | |
8c2bf391 | 2752 | reloc.get_r_addend(), is_ifunc); |
2e702c99 RM |
2753 | } |
2754 | else | |
2755 | { | |
2756 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
f5314dd5 | 2757 | |
32b769e1 | 2758 | check_non_pic(object, r_type); |
0da6fa6c DM |
2759 | if (gsym->is_from_dynobj() |
2760 | || gsym->is_undefined() | |
2761 | || gsym->is_preemptible()) | |
2762 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2763 | object, data_shndx, | |
2764 | reloc.get_r_offset(), | |
2765 | reloc.get_r_addend()); | |
2766 | else | |
2767 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2768 | output_section, | |
2769 | object, data_shndx, | |
2770 | reloc.get_r_offset(), | |
2771 | reloc.get_r_addend()); | |
2e702c99 RM |
2772 | } |
2773 | } | |
f5314dd5 DM |
2774 | } |
2775 | break; | |
2776 | ||
024c4466 DM |
2777 | case elfcpp::R_SPARC_GOTDATA_OP: |
2778 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2779 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 | 2780 | if (gsym->is_defined() |
2e702c99 RM |
2781 | && !gsym->is_from_dynobj() |
2782 | && !gsym->is_preemptible() | |
2a1079e8 DM |
2783 | && !is_ifunc) |
2784 | { | |
2785 | // We will optimize this into a GOT relative relocation | |
2786 | // and code transform the GOT load into an addition. | |
2787 | break; | |
2788 | } | |
f5314dd5 DM |
2789 | case elfcpp::R_SPARC_GOT10: |
2790 | case elfcpp::R_SPARC_GOT13: | |
2791 | case elfcpp::R_SPARC_GOT22: | |
2792 | { | |
2e702c99 RM |
2793 | // The symbol requires a GOT entry. |
2794 | Output_data_got<size, big_endian>* got; | |
f5314dd5 DM |
2795 | |
2796 | got = target->got_section(symtab, layout); | |
2e702c99 | 2797 | if (gsym->final_value_is_known()) |
8c2bf391 DM |
2798 | { |
2799 | // For a STT_GNU_IFUNC symbol we want the PLT address. | |
2800 | if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
2801 | got->add_global_plt(gsym, GOT_TYPE_STANDARD); | |
2802 | else | |
2803 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2804 | } | |
2e702c99 RM |
2805 | else |
2806 | { | |
2807 | // If this symbol is not fully resolved, we need to add a | |
2808 | // GOT entry with a dynamic relocation. | |
8c2bf391 DM |
2809 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
2810 | ||
2811 | // Use a GLOB_DAT rather than a RELATIVE reloc if: | |
2812 | // | |
2813 | // 1) The symbol may be defined in some other module. | |
2814 | // | |
2815 | // 2) We are building a shared library and this is a | |
2816 | // protected symbol; using GLOB_DAT means that the dynamic | |
2817 | // linker can use the address of the PLT in the main | |
2818 | // executable when appropriate so that function address | |
2819 | // comparisons work. | |
2820 | // | |
2821 | // 3) This is a STT_GNU_IFUNC symbol in position dependent | |
2822 | // code, again so that function address comparisons work. | |
2e702c99 RM |
2823 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
2824 | if (gsym->is_from_dynobj() | |
2825 | || gsym->is_undefined() | |
2826 | || gsym->is_preemptible() | |
8c2bf391 DM |
2827 | || (gsym->visibility() == elfcpp::STV_PROTECTED |
2828 | && parameters->options().shared()) | |
2829 | || (gsym->type() == elfcpp::STT_GNU_IFUNC | |
2830 | && parameters->options().output_is_position_independent() | |
2831 | && !gsym->is_forced_local())) | |
2832 | { | |
2833 | unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT; | |
2834 | ||
2835 | // If this symbol is forced local, this relocation will | |
2836 | // not work properly. That's because ld.so on sparc | |
2837 | // (and 32-bit powerpc) expects st_value in the r_addend | |
2838 | // of relocations for STB_LOCAL symbols. Curiously the | |
2839 | // BFD linker does not promote global hidden symbols to be | |
2840 | // STB_LOCAL in the dynamic symbol table like Gold does. | |
2841 | gold_assert(!gsym->is_forced_local()); | |
2842 | got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2843 | r_type); | |
2844 | } | |
2e702c99 RM |
2845 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) |
2846 | { | |
f5314dd5 DM |
2847 | unsigned int off = got->add_constant(0); |
2848 | ||
2849 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
8c2bf391 DM |
2850 | if (is_ifunc) |
2851 | { | |
2852 | // Tell the dynamic linker to use the PLT address | |
2853 | // when resolving relocations. | |
2854 | if (gsym->is_from_dynobj() | |
2855 | && !parameters->options().shared()) | |
2856 | gsym->set_needs_dynsym_value(); | |
2857 | } | |
f5314dd5 | 2858 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, |
8c2bf391 | 2859 | got, off, 0, is_ifunc); |
f5314dd5 | 2860 | } |
2e702c99 | 2861 | } |
f5314dd5 DM |
2862 | } |
2863 | break; | |
2864 | ||
2865 | // These are initial tls relocs, which are expected when | |
2866 | // linking. | |
2867 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2868 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2869 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2870 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2871 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2872 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2873 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2874 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2875 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2876 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2877 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2878 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2879 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2880 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2881 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2882 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2883 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2884 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2885 | { |
2886 | const bool is_final = gsym->final_value_is_known(); | |
2887 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2888 | = optimize_tls_reloc(is_final, r_type); |
f5314dd5 DM |
2889 | switch (r_type) |
2890 | { | |
2891 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2892 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2893 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2894 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2895 | if (optimized_type == tls::TLSOPT_NONE) | |
2896 | { | |
2e702c99 RM |
2897 | // Create a pair of GOT entries for the module index and |
2898 | // dtv-relative offset. | |
2899 | Output_data_got<size, big_endian>* got | |
2900 | = target->got_section(symtab, layout); | |
2901 | got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, | |
83896202 ILT |
2902 | target->rela_dyn_section(layout), |
2903 | (size == 64 | |
2904 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2905 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2906 | (size == 64 | |
2907 | ? elfcpp::R_SPARC_TLS_DTPOFF64 | |
2908 | : elfcpp::R_SPARC_TLS_DTPOFF32)); | |
f5314dd5 DM |
2909 | |
2910 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2911 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2912 | generate_tls_call(symtab, layout, target); | |
2913 | } | |
2914 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2915 | { | |
2e702c99 RM |
2916 | // Create a GOT entry for the tp-relative offset. |
2917 | Output_data_got<size, big_endian>* got | |
2918 | = target->got_section(symtab, layout); | |
2919 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, | |
83896202 ILT |
2920 | target->rela_dyn_section(layout), |
2921 | (size == 64 ? | |
2922 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2923 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2924 | } |
2925 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2926 | unsupported_reloc_global(object, r_type, gsym); | |
2927 | break; | |
2928 | ||
2929 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2930 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2931 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2932 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2933 | if (optimized_type == tls::TLSOPT_NONE) | |
2934 | { | |
2935 | // Create a GOT entry for the module index. | |
2936 | target->got_mod_index_entry(symtab, layout, object); | |
2937 | ||
2938 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2939 | generate_tls_call(symtab, layout, target); | |
2940 | } | |
2941 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2942 | unsupported_reloc_global(object, r_type, gsym); | |
2943 | break; | |
2944 | ||
2945 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2946 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2947 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2948 | break; | |
2949 | ||
2950 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2951 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2952 | layout->set_has_static_tls(); | |
2953 | if (parameters->options().shared()) | |
2954 | { | |
2955 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2956 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2957 | output_section, object, | |
2958 | data_shndx, reloc.get_r_offset(), | |
2959 | 0); | |
f5314dd5 DM |
2960 | } |
2961 | break; | |
2962 | ||
2963 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2964 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2965 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2966 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2967 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2968 | layout->set_has_static_tls(); |
2969 | if (optimized_type == tls::TLSOPT_NONE) | |
2970 | { | |
2971 | // Create a GOT entry for the tp-relative offset. | |
2972 | Output_data_got<size, big_endian>* got | |
2973 | = target->got_section(symtab, layout); | |
83896202 ILT |
2974 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
2975 | target->rela_dyn_section(layout), | |
2976 | (size == 64 | |
2977 | ? elfcpp::R_SPARC_TLS_TPOFF64 | |
2978 | : elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2979 | } |
2980 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2981 | unsupported_reloc_global(object, r_type, gsym); | |
2982 | break; | |
2983 | } | |
2984 | } | |
2985 | break; | |
2986 | ||
2987 | // These are relocations which should only be seen by the | |
2988 | // dynamic linker, and should never be seen here. | |
2989 | case elfcpp::R_SPARC_COPY: | |
2990 | case elfcpp::R_SPARC_GLOB_DAT: | |
2991 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2992 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2993 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2994 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2995 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2996 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2997 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2998 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2999 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3000 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3001 | gold_error(_("%s: unexpected reloc %u in object file"), | |
3002 | object->name().c_str(), r_type); | |
3003 | break; | |
3004 | ||
3005 | default: | |
3006 | unsupported_reloc_global(object, r_type, gsym); | |
3007 | break; | |
3008 | } | |
3009 | } | |
3010 | ||
6d03d481 ST |
3011 | // Process relocations for gc. |
3012 | ||
3013 | template<int size, bool big_endian> | |
3014 | void | |
3015 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
3016 | Symbol_table* symtab, |
3017 | Layout* layout, | |
6fa2a40b | 3018 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
3019 | unsigned int data_shndx, |
3020 | unsigned int, | |
3021 | const unsigned char* prelocs, | |
3022 | size_t reloc_count, | |
3023 | Output_section* output_section, | |
3024 | bool needs_special_offset_handling, | |
3025 | size_t local_symbol_count, | |
3026 | const unsigned char* plocal_symbols) | |
3027 | { | |
3028 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3029 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 3030 | |
41cbeecc | 3031 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 3032 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
3033 | symtab, |
3034 | layout, | |
3035 | this, | |
3036 | object, | |
3037 | data_shndx, | |
3038 | prelocs, | |
3039 | reloc_count, | |
3040 | output_section, | |
3041 | needs_special_offset_handling, | |
3042 | local_symbol_count, | |
3043 | plocal_symbols); | |
3044 | } | |
3045 | ||
f5314dd5 DM |
3046 | // Scan relocations for a section. |
3047 | ||
3048 | template<int size, bool big_endian> | |
3049 | void | |
3050 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
3051 | Symbol_table* symtab, |
3052 | Layout* layout, | |
6fa2a40b | 3053 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
3054 | unsigned int data_shndx, |
3055 | unsigned int sh_type, | |
3056 | const unsigned char* prelocs, | |
3057 | size_t reloc_count, | |
3058 | Output_section* output_section, | |
3059 | bool needs_special_offset_handling, | |
3060 | size_t local_symbol_count, | |
3061 | const unsigned char* plocal_symbols) | |
3062 | { | |
3063 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3064 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
3065 | |
3066 | if (sh_type == elfcpp::SHT_REL) | |
3067 | { | |
3068 | gold_error(_("%s: unsupported REL reloc section"), | |
3069 | object->name().c_str()); | |
3070 | return; | |
3071 | } | |
3072 | ||
2ea97941 | 3073 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
3074 | symtab, |
3075 | layout, | |
3076 | this, | |
3077 | object, | |
3078 | data_shndx, | |
3079 | prelocs, | |
3080 | reloc_count, | |
3081 | output_section, | |
3082 | needs_special_offset_handling, | |
3083 | local_symbol_count, | |
3084 | plocal_symbols); | |
3085 | } | |
3086 | ||
3087 | // Finalize the sections. | |
3088 | ||
3089 | template<int size, bool big_endian> | |
3090 | void | |
d5b40221 DK |
3091 | Target_sparc<size, big_endian>::do_finalize_sections( |
3092 | Layout* layout, | |
f59f41f3 | 3093 | const Input_objects*, |
8c2bf391 | 3094 | Symbol_table* symtab) |
f5314dd5 | 3095 | { |
8c2bf391 DM |
3096 | if (this->plt_) |
3097 | this->plt_->emit_pending_ifunc_relocs(); | |
3098 | ||
f5314dd5 | 3099 | // Fill in some more dynamic tags. |
ea715a34 ILT |
3100 | const Reloc_section* rel_plt = (this->plt_ == NULL |
3101 | ? NULL | |
3102 | : this->plt_->rel_plt()); | |
3103 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 3104 | this->rela_dyn_, true, true); |
f5314dd5 DM |
3105 | |
3106 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
3107 | // relocs. | |
12c0daef ILT |
3108 | if (this->copy_relocs_.any_saved_relocs()) |
3109 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
8c2bf391 DM |
3110 | |
3111 | if (parameters->doing_static_link() | |
3112 | && (this->plt_ == NULL || !this->plt_->has_ifunc_section())) | |
3113 | { | |
3114 | // If linking statically, make sure that the __rela_iplt symbols | |
3115 | // were defined if necessary, even if we didn't create a PLT. | |
3116 | static const Define_symbol_in_segment syms[] = | |
3117 | { | |
3118 | { | |
3119 | "__rela_iplt_start", // name | |
3120 | elfcpp::PT_LOAD, // segment_type | |
3121 | elfcpp::PF_W, // segment_flags_set | |
3122 | elfcpp::PF(0), // segment_flags_clear | |
3123 | 0, // value | |
3124 | 0, // size | |
3125 | elfcpp::STT_NOTYPE, // type | |
3126 | elfcpp::STB_GLOBAL, // binding | |
3127 | elfcpp::STV_HIDDEN, // visibility | |
3128 | 0, // nonvis | |
3129 | Symbol::SEGMENT_START, // offset_from_base | |
3130 | true // only_if_ref | |
3131 | }, | |
3132 | { | |
3133 | "__rela_iplt_end", // name | |
3134 | elfcpp::PT_LOAD, // segment_type | |
3135 | elfcpp::PF_W, // segment_flags_set | |
3136 | elfcpp::PF(0), // segment_flags_clear | |
3137 | 0, // value | |
3138 | 0, // size | |
3139 | elfcpp::STT_NOTYPE, // type | |
3140 | elfcpp::STB_GLOBAL, // binding | |
3141 | elfcpp::STV_HIDDEN, // visibility | |
3142 | 0, // nonvis | |
3143 | Symbol::SEGMENT_START, // offset_from_base | |
3144 | true // only_if_ref | |
3145 | } | |
3146 | }; | |
3147 | ||
3148 | symtab->define_symbols(layout, 2, syms, | |
3149 | layout->script_options()->saw_sections_clause()); | |
3150 | } | |
f5314dd5 DM |
3151 | } |
3152 | ||
3153 | // Perform a relocation. | |
3154 | ||
3155 | template<int size, bool big_endian> | |
3156 | inline bool | |
3157 | Target_sparc<size, big_endian>::Relocate::relocate( | |
3158 | const Relocate_info<size, big_endian>* relinfo, | |
3159 | Target_sparc* target, | |
031cdbed | 3160 | Output_section*, |
f5314dd5 DM |
3161 | size_t relnum, |
3162 | const elfcpp::Rela<size, big_endian>& rela, | |
3163 | unsigned int r_type, | |
3164 | const Sized_symbol<size>* gsym, | |
3165 | const Symbol_value<size>* psymval, | |
3166 | unsigned char* view, | |
3167 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3168 | section_size_type view_size) | |
3169 | { | |
2a1079e8 | 3170 | bool orig_is_ifunc = psymval->is_ifunc_symbol(); |
f5314dd5 DM |
3171 | r_type &= 0xff; |
3172 | ||
3173 | if (this->ignore_gd_add_) | |
3174 | { | |
3175 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
3176 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3177 | _("missing expected TLS relocation")); | |
3178 | else | |
3179 | { | |
3180 | this->ignore_gd_add_ = false; | |
3181 | return false; | |
3182 | } | |
3183 | } | |
abd242a9 DM |
3184 | if (this->reloc_adjust_addr_ == view) |
3185 | view -= 4; | |
f5314dd5 DM |
3186 | |
3187 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
8c2bf391 | 3188 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3189 | |
3190 | // Pick the value to use for symbols defined in shared objects. | |
3191 | Symbol_value<size> symval; | |
3192 | if (gsym != NULL | |
95a2c8d6 | 3193 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
f5314dd5 | 3194 | { |
2ea97941 | 3195 | elfcpp::Elf_Xword value; |
f5314dd5 | 3196 | |
8c2bf391 | 3197 | value = target->plt_address_for_global(gsym) + gsym->plt_offset(); |
f5314dd5 | 3198 | |
2ea97941 | 3199 | symval.set_output_value(value); |
f5314dd5 DM |
3200 | |
3201 | psymval = &symval; | |
3202 | } | |
2a1079e8 | 3203 | else if (gsym == NULL && orig_is_ifunc) |
8c2bf391 DM |
3204 | { |
3205 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3206 | if (object->local_has_plt_offset(r_sym)) | |
3207 | { | |
3208 | symval.set_output_value(target->plt_address_for_local(object, r_sym) | |
3209 | + object->local_plt_offset(r_sym)); | |
3210 | psymval = &symval; | |
3211 | } | |
3212 | } | |
f5314dd5 | 3213 | |
f5314dd5 DM |
3214 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); |
3215 | ||
3216 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
3217 | // pointer points to the beginning, not the end, of the table. | |
3218 | // So we just use the plain offset. | |
f5314dd5 | 3219 | unsigned int got_offset = 0; |
2a1079e8 | 3220 | bool gdop_valid = false; |
f5314dd5 DM |
3221 | switch (r_type) |
3222 | { | |
024c4466 DM |
3223 | case elfcpp::R_SPARC_GOTDATA_OP: |
3224 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
3225 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3226 | // If this is local, we did not create a GOT entry because we |
3227 | // intend to transform this into a GOT relative relocation. | |
3228 | if (gsym == NULL | |
3229 | || (gsym->is_defined() | |
3230 | && !gsym->is_from_dynobj() | |
3231 | && !gsym->is_preemptible() | |
3232 | && !orig_is_ifunc)) | |
3233 | { | |
3234 | got_offset = psymval->value(object, 0) - target->got_address(); | |
3235 | gdop_valid = true; | |
3236 | break; | |
3237 | } | |
f5314dd5 DM |
3238 | case elfcpp::R_SPARC_GOT10: |
3239 | case elfcpp::R_SPARC_GOT13: | |
3240 | case elfcpp::R_SPARC_GOT22: | |
3241 | if (gsym != NULL) | |
2e702c99 RM |
3242 | { |
3243 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
3244 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
3245 | } | |
f5314dd5 | 3246 | else |
2e702c99 RM |
3247 | { |
3248 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3249 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
3250 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
3251 | } | |
f5314dd5 DM |
3252 | break; |
3253 | ||
3254 | default: | |
3255 | break; | |
3256 | } | |
3257 | ||
3258 | switch (r_type) | |
3259 | { | |
3260 | case elfcpp::R_SPARC_NONE: | |
3261 | case elfcpp::R_SPARC_REGISTER: | |
3262 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
3263 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
3264 | break; | |
3265 | ||
3266 | case elfcpp::R_SPARC_8: | |
3267 | Relocate_functions<size, big_endian>::rela8(view, object, | |
3268 | psymval, addend); | |
3269 | break; | |
3270 | ||
3271 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
3272 | if (rela.get_r_offset() & 0x1) |
3273 | { | |
3274 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3275 | // for dwarf2 cfi directives. |
705b5121 DM |
3276 | Reloc::ua16(view, object, psymval, addend); |
3277 | } | |
3278 | else | |
3279 | Relocate_functions<size, big_endian>::rela16(view, object, | |
3280 | psymval, addend); | |
f5314dd5 DM |
3281 | break; |
3282 | ||
3283 | case elfcpp::R_SPARC_32: | |
3284 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3285 | { |
3286 | if (rela.get_r_offset() & 0x3) | |
3287 | { | |
3288 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3289 | // for dwarf2 cfi directives. |
705b5121 DM |
3290 | Reloc::ua32(view, object, psymval, addend); |
3291 | } | |
3292 | else | |
3293 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3294 | psymval, addend); | |
3295 | } | |
f5314dd5 DM |
3296 | break; |
3297 | ||
3298 | case elfcpp::R_SPARC_DISP8: | |
3299 | Reloc::disp8(view, object, psymval, addend, address); | |
3300 | break; | |
3301 | ||
3302 | case elfcpp::R_SPARC_DISP16: | |
3303 | Reloc::disp16(view, object, psymval, addend, address); | |
3304 | break; | |
3305 | ||
3306 | case elfcpp::R_SPARC_DISP32: | |
3307 | Reloc::disp32(view, object, psymval, addend, address); | |
3308 | break; | |
3309 | ||
3310 | case elfcpp::R_SPARC_DISP64: | |
3311 | Reloc::disp64(view, object, psymval, addend, address); | |
3312 | break; | |
3313 | ||
3314 | case elfcpp::R_SPARC_WDISP30: | |
3315 | case elfcpp::R_SPARC_WPLT30: | |
3316 | Reloc::wdisp30(view, object, psymval, addend, address); | |
a5a5f7a3 DM |
3317 | if (target->may_relax()) |
3318 | relax_call(target, view, rela, view_size); | |
f5314dd5 DM |
3319 | break; |
3320 | ||
3321 | case elfcpp::R_SPARC_WDISP22: | |
3322 | Reloc::wdisp22(view, object, psymval, addend, address); | |
3323 | break; | |
3324 | ||
3325 | case elfcpp::R_SPARC_WDISP19: | |
3326 | Reloc::wdisp19(view, object, psymval, addend, address); | |
3327 | break; | |
3328 | ||
3329 | case elfcpp::R_SPARC_WDISP16: | |
3330 | Reloc::wdisp16(view, object, psymval, addend, address); | |
3331 | break; | |
3332 | ||
2615994e DM |
3333 | case elfcpp::R_SPARC_WDISP10: |
3334 | Reloc::wdisp10(view, object, psymval, addend, address); | |
3335 | break; | |
3336 | ||
f5314dd5 DM |
3337 | case elfcpp::R_SPARC_HI22: |
3338 | Reloc::hi22(view, object, psymval, addend); | |
3339 | break; | |
3340 | ||
3341 | case elfcpp::R_SPARC_22: | |
3342 | Reloc::rela32_22(view, object, psymval, addend); | |
3343 | break; | |
3344 | ||
3345 | case elfcpp::R_SPARC_13: | |
3346 | Reloc::rela32_13(view, object, psymval, addend); | |
3347 | break; | |
3348 | ||
3349 | case elfcpp::R_SPARC_LO10: | |
3350 | Reloc::lo10(view, object, psymval, addend); | |
3351 | break; | |
3352 | ||
3353 | case elfcpp::R_SPARC_GOT10: | |
3354 | Reloc::lo10(view, got_offset, addend); | |
3355 | break; | |
3356 | ||
024c4466 | 3357 | case elfcpp::R_SPARC_GOTDATA_OP: |
2a1079e8 DM |
3358 | if (gdop_valid) |
3359 | { | |
3360 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3361 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3362 | Insntype val; | |
3363 | ||
3364 | // {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd | |
3365 | val = elfcpp::Swap<32, true>::readval(wv); | |
3366 | val = 0x80000000 | (val & 0x3e07c01f); | |
3367 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3368 | } | |
024c4466 DM |
3369 | break; |
3370 | ||
3371 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3372 | if (gdop_valid) |
3373 | { | |
3374 | Reloc::gdop_lox10(view, got_offset, addend); | |
3375 | break; | |
3376 | } | |
3377 | /* Fall through. */ | |
f5314dd5 DM |
3378 | case elfcpp::R_SPARC_GOT13: |
3379 | Reloc::rela32_13(view, got_offset, addend); | |
3380 | break; | |
3381 | ||
024c4466 | 3382 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
2a1079e8 DM |
3383 | if (gdop_valid) |
3384 | { | |
3385 | Reloc::gdop_hix22(view, got_offset, addend); | |
3386 | break; | |
3387 | } | |
3388 | /* Fall through. */ | |
f5314dd5 DM |
3389 | case elfcpp::R_SPARC_GOT22: |
3390 | Reloc::hi22(view, got_offset, addend); | |
3391 | break; | |
3392 | ||
3393 | case elfcpp::R_SPARC_PC10: | |
3394 | Reloc::pc10(view, object, psymval, addend, address); | |
3395 | break; | |
3396 | ||
3397 | case elfcpp::R_SPARC_PC22: | |
3398 | Reloc::pc22(view, object, psymval, addend, address); | |
3399 | break; | |
3400 | ||
3401 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3402 | case elfcpp::R_SPARC_UA32: | |
3403 | Reloc::ua32(view, object, psymval, addend); | |
3404 | break; | |
3405 | ||
3406 | case elfcpp::R_SPARC_PLT64: | |
3407 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3408 | psymval, addend); | |
3409 | break; | |
3410 | ||
3411 | case elfcpp::R_SPARC_PLT32: | |
3412 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3413 | psymval, addend); | |
3414 | break; | |
3415 | ||
3416 | case elfcpp::R_SPARC_HIPLT22: | |
3417 | Reloc::hi22(view, object, psymval, addend); | |
3418 | break; | |
3419 | ||
3420 | case elfcpp::R_SPARC_LOPLT10: | |
3421 | Reloc::lo10(view, object, psymval, addend); | |
3422 | break; | |
3423 | ||
3424 | case elfcpp::R_SPARC_PCPLT32: | |
3425 | Reloc::disp32(view, object, psymval, addend, address); | |
3426 | break; | |
3427 | ||
3428 | case elfcpp::R_SPARC_PCPLT22: | |
3429 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3430 | break; | |
3431 | ||
3432 | case elfcpp::R_SPARC_PCPLT10: | |
3433 | Reloc::lo10(view, object, psymval, addend, address); | |
3434 | break; | |
3435 | ||
3436 | case elfcpp::R_SPARC_64: | |
3437 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3438 | { |
3439 | if (rela.get_r_offset() & 0x7) | |
3440 | { | |
3441 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3442 | // for dwarf2 cfi directives. |
705b5121 DM |
3443 | Reloc::ua64(view, object, psymval, addend); |
3444 | } | |
3445 | else | |
3446 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3447 | psymval, addend); | |
3448 | } | |
f5314dd5 DM |
3449 | break; |
3450 | ||
3451 | case elfcpp::R_SPARC_OLO10: | |
3452 | { | |
3453 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
3454 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
3455 | Reloc::olo10(view, object, psymval, addend, addend2); | |
3456 | } | |
3457 | break; | |
3458 | ||
3459 | case elfcpp::R_SPARC_HH22: | |
3460 | Reloc::hh22(view, object, psymval, addend); | |
3461 | break; | |
3462 | ||
3463 | case elfcpp::R_SPARC_PC_HH22: | |
3464 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
3465 | break; | |
3466 | ||
3467 | case elfcpp::R_SPARC_HM10: | |
3468 | Reloc::hm10(view, object, psymval, addend); | |
3469 | break; | |
3470 | ||
3471 | case elfcpp::R_SPARC_PC_HM10: | |
3472 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
3473 | break; | |
3474 | ||
3475 | case elfcpp::R_SPARC_LM22: | |
3476 | Reloc::hi22(view, object, psymval, addend); | |
3477 | break; | |
3478 | ||
3479 | case elfcpp::R_SPARC_PC_LM22: | |
3480 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3481 | break; | |
3482 | ||
3483 | case elfcpp::R_SPARC_11: | |
3484 | Reloc::rela32_11(view, object, psymval, addend); | |
3485 | break; | |
3486 | ||
3487 | case elfcpp::R_SPARC_10: | |
3488 | Reloc::rela32_10(view, object, psymval, addend); | |
3489 | break; | |
3490 | ||
3491 | case elfcpp::R_SPARC_7: | |
3492 | Reloc::rela32_7(view, object, psymval, addend); | |
3493 | break; | |
3494 | ||
3495 | case elfcpp::R_SPARC_6: | |
3496 | Reloc::rela32_6(view, object, psymval, addend); | |
3497 | break; | |
3498 | ||
3499 | case elfcpp::R_SPARC_5: | |
3500 | Reloc::rela32_5(view, object, psymval, addend); | |
3501 | break; | |
3502 | ||
3503 | case elfcpp::R_SPARC_HIX22: | |
3504 | Reloc::hix22(view, object, psymval, addend); | |
3505 | break; | |
3506 | ||
3507 | case elfcpp::R_SPARC_LOX10: | |
3508 | Reloc::lox10(view, object, psymval, addend); | |
3509 | break; | |
3510 | ||
2615994e DM |
3511 | case elfcpp::R_SPARC_H34: |
3512 | Reloc::h34(view, object, psymval, addend); | |
3513 | break; | |
3514 | ||
f5314dd5 DM |
3515 | case elfcpp::R_SPARC_H44: |
3516 | Reloc::h44(view, object, psymval, addend); | |
3517 | break; | |
3518 | ||
3519 | case elfcpp::R_SPARC_M44: | |
3520 | Reloc::m44(view, object, psymval, addend); | |
3521 | break; | |
3522 | ||
3523 | case elfcpp::R_SPARC_L44: | |
3524 | Reloc::l44(view, object, psymval, addend); | |
3525 | break; | |
3526 | ||
3527 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3528 | case elfcpp::R_SPARC_UA64: | |
3529 | Reloc::ua64(view, object, psymval, addend); | |
3530 | break; | |
3531 | ||
3532 | case elfcpp::R_SPARC_UA16: | |
3533 | Reloc::ua16(view, object, psymval, addend); | |
3534 | break; | |
3535 | ||
3536 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3537 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3538 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3539 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3540 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3541 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3542 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3543 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3544 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3545 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3546 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3547 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3548 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3549 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3550 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 3551 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
3552 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3553 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3554 | this->relocate_tls(relinfo, target, relnum, rela, | |
3555 | r_type, gsym, psymval, view, | |
3556 | address, view_size); | |
3557 | break; | |
3558 | ||
3559 | case elfcpp::R_SPARC_COPY: | |
3560 | case elfcpp::R_SPARC_GLOB_DAT: | |
3561 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 3562 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 3563 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 3564 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3565 | // These are outstanding tls relocs, which are unexpected when |
3566 | // linking. | |
3567 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
3568 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3569 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3570 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3571 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3572 | _("unexpected reloc %u in object file"), | |
3573 | r_type); | |
3574 | break; | |
3575 | ||
3576 | default: | |
3577 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3578 | _("unsupported reloc %u"), | |
3579 | r_type); | |
3580 | break; | |
3581 | } | |
3582 | ||
3583 | return true; | |
3584 | } | |
3585 | ||
3586 | // Perform a TLS relocation. | |
3587 | ||
3588 | template<int size, bool big_endian> | |
3589 | inline void | |
3590 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
3591 | const Relocate_info<size, big_endian>* relinfo, | |
3592 | Target_sparc<size, big_endian>* target, | |
3593 | size_t relnum, | |
3594 | const elfcpp::Rela<size, big_endian>& rela, | |
3595 | unsigned int r_type, | |
3596 | const Sized_symbol<size>* gsym, | |
3597 | const Symbol_value<size>* psymval, | |
3598 | unsigned char* view, | |
3599 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3600 | section_size_type) | |
3601 | { | |
3602 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
3603 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
6fa2a40b | 3604 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3605 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; |
3606 | ||
3607 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 3608 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
3609 | |
3610 | const bool is_final = | |
3611 | (gsym == NULL | |
3612 | ? !parameters->options().output_is_position_independent() | |
3613 | : gsym->final_value_is_known()); | |
3614 | const tls::Tls_optimization optimized_type | |
3615 | = optimize_tls_reloc(is_final, r_type); | |
3616 | ||
3617 | switch (r_type) | |
3618 | { | |
3619 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3620 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3621 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3622 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3623 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3624 | { | |
3625 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3626 | Insntype val; | |
3627 | ||
2ea97941 | 3628 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3629 | |
3630 | switch (r_type) | |
3631 | { | |
3632 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3633 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 3634 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3635 | break; |
3636 | ||
3637 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3638 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 3639 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3640 | break; |
3641 | ||
3642 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3643 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
3644 | val = elfcpp::Swap<32, true>::readval(wv); | |
3645 | val = (val & ~0x7c000) | 0x1c000; | |
3646 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3647 | break; | |
3648 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3649 | // call __tls_get_addr --> nop | |
3650 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3651 | break; | |
3652 | } | |
3653 | break; | |
3654 | } | |
3655 | else | |
2e702c99 RM |
3656 | { |
3657 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
3658 | ? GOT_TYPE_TLS_OFFSET | |
3659 | : GOT_TYPE_TLS_PAIR); | |
3660 | if (gsym != NULL) | |
3661 | { | |
3662 | gold_assert(gsym->has_got_offset(got_type)); | |
3663 | value = gsym->got_offset(got_type); | |
3664 | } | |
3665 | else | |
3666 | { | |
3667 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3668 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
3669 | value = object->local_got_offset(r_sym, got_type); | |
3670 | } | |
3671 | if (optimized_type == tls::TLSOPT_TO_IE) | |
f5314dd5 DM |
3672 | { |
3673 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3674 | Insntype val; | |
3675 | ||
3676 | switch (r_type) | |
3677 | { | |
3678 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3679 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 3680 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3681 | break; |
3682 | ||
3683 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3684 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 3685 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3686 | break; |
3687 | ||
3688 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3689 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
3690 | val = elfcpp::Swap<32, true>::readval(wv); | |
3691 | ||
3692 | if (size == 64) | |
3693 | val |= 0xc0580000; | |
3694 | else | |
3695 | val |= 0xc0000000; | |
3696 | ||
3697 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3698 | break; | |
3699 | ||
3700 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3701 | // The compiler can put the TLS_GD_ADD instruction | |
3702 | // into the delay slot of the call. If so, we need | |
3703 | // to transpose the two instructions so that the | |
9b547ce6 | 3704 | // new sequence works properly. |
f5314dd5 DM |
3705 | // |
3706 | // The test we use is if the instruction in the | |
3707 | // delay slot is an add with destination register | |
3708 | // equal to %o0 | |
3709 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
3710 | if ((val & 0x81f80000) == 0x80000000 | |
3711 | && ((val >> 25) & 0x1f) == 0x8) | |
3712 | { | |
3713 | if (size == 64) | |
3714 | val |= 0xc0580000; | |
3715 | else | |
3716 | val |= 0xc0000000; | |
3717 | ||
3718 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3719 | ||
3720 | wv += 1; | |
3721 | this->ignore_gd_add_ = true; | |
3722 | } | |
abd242a9 DM |
3723 | else |
3724 | { | |
3725 | // Even if the delay slot isn't the TLS_GD_ADD | |
3726 | // instruction, we still have to handle the case | |
3727 | // where it sets up %o0 in some other way. | |
3728 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3729 | wv += 1; | |
3730 | this->reloc_adjust_addr_ = view + 4; | |
3731 | } | |
f5314dd5 DM |
3732 | // call __tls_get_addr --> add %g7, %o0, %o0 |
3733 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3734 | break; | |
3735 | } | |
2e702c99 | 3736 | break; |
f5314dd5 | 3737 | } |
2e702c99 RM |
3738 | else if (optimized_type == tls::TLSOPT_NONE) |
3739 | { | |
f5314dd5 DM |
3740 | switch (r_type) |
3741 | { | |
3742 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3743 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3744 | break; |
3745 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3746 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3747 | break; |
3748 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3749 | break; | |
3750 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3751 | { | |
3752 | Symbol_value<size> symval; | |
2ea97941 | 3753 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3754 | Symbol* tsym; |
3755 | ||
3756 | tsym = target->tls_get_addr_sym_; | |
3757 | gold_assert(tsym); | |
2ea97941 ILT |
3758 | value = (target->plt_section()->address() + |
3759 | tsym->plt_offset()); | |
3760 | symval.set_output_value(value); | |
f5314dd5 DM |
3761 | Reloc::wdisp30(view, object, &symval, addend, address); |
3762 | } | |
3763 | break; | |
3764 | } | |
3765 | break; | |
2e702c99 RM |
3766 | } |
3767 | } | |
f5314dd5 DM |
3768 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3769 | _("unsupported reloc %u"), | |
3770 | r_type); | |
3771 | break; | |
3772 | ||
3773 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3774 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3775 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3776 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3777 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3778 | { | |
3779 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3780 | ||
3781 | switch (r_type) | |
3782 | { | |
3783 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3784 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3785 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3786 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3787 | break; | |
3788 | ||
3789 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3790 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3791 | break; | |
3792 | } | |
3793 | break; | |
3794 | } | |
3795 | else if (optimized_type == tls::TLSOPT_NONE) | |
2e702c99 RM |
3796 | { |
3797 | // Relocate the field with the offset of the GOT entry for | |
3798 | // the module index. | |
3799 | unsigned int got_offset; | |
f5314dd5 DM |
3800 | |
3801 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3802 | switch (r_type) | |
3803 | { | |
3804 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3805 | Reloc::hi22(view, got_offset, addend); | |
3806 | break; | |
3807 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3808 | Reloc::lo10(view, got_offset, addend); | |
3809 | break; | |
3810 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3811 | break; | |
3812 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3813 | { | |
3814 | Symbol_value<size> symval; | |
2ea97941 | 3815 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3816 | Symbol* tsym; |
3817 | ||
3818 | tsym = target->tls_get_addr_sym_; | |
3819 | gold_assert(tsym); | |
2ea97941 ILT |
3820 | value = (target->plt_section()->address() + |
3821 | tsym->plt_offset()); | |
3822 | symval.set_output_value(value); | |
f5314dd5 DM |
3823 | Reloc::wdisp30(view, object, &symval, addend, address); |
3824 | } | |
3825 | break; | |
3826 | } | |
2e702c99 RM |
3827 | break; |
3828 | } | |
f5314dd5 DM |
3829 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3830 | _("unsupported reloc %u"), | |
3831 | r_type); | |
3832 | break; | |
3833 | ||
3834 | // These relocs can appear in debugging sections, in which case | |
3835 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3836 | // field tells us this. | |
3837 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3838 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3839 | { | |
2ea97941 ILT |
3840 | value -= tls_segment->memsz(); |
3841 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3842 | } |
3843 | else | |
2ea97941 | 3844 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3845 | break; |
3846 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3847 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3848 | { | |
2ea97941 ILT |
3849 | value -= tls_segment->memsz(); |
3850 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3851 | } |
3852 | else | |
2ea97941 | 3853 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3854 | break; |
3855 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3856 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3857 | { | |
3858 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3859 | Insntype val; | |
3860 | ||
3861 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3862 | val = elfcpp::Swap<32, true>::readval(wv); | |
3863 | val = (val & ~0x7c000) | 0x1c000; | |
3864 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3865 | } | |
3866 | break; | |
3867 | ||
3868 | // When optimizing IE --> LE, the only relocation that is handled | |
3869 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3870 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3871 | // rs2 and rd are the same. | |
3872 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3873 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3874 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3875 | { | |
3876 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3877 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3878 | Insntype rs2 = val & 0x1f; | |
3879 | Insntype rd = (val >> 25) & 0x1f; | |
3880 | ||
3881 | if (rs2 == rd) | |
3882 | val = sparc_nop; | |
3883 | else | |
3884 | val = sparc_mov | (val & 0x3e00001f); | |
3885 | ||
3886 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3887 | } | |
3888 | break; | |
3889 | ||
3890 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3891 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3892 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3893 | { | |
2ea97941 | 3894 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3895 | switch (r_type) |
3896 | { | |
3897 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3898 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3899 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3900 | break; |
3901 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3902 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3903 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3904 | break; |
3905 | } | |
3906 | break; | |
3907 | } | |
3908 | else if (optimized_type == tls::TLSOPT_NONE) | |
3909 | { | |
3910 | // Relocate the field with the offset of the GOT entry for | |
3911 | // the tp-relative offset of the symbol. | |
3912 | if (gsym != NULL) | |
3913 | { | |
3914 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3915 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3916 | } |
3917 | else | |
3918 | { | |
3919 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3920 | gold_assert(object->local_has_got_offset(r_sym, | |
3921 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3922 | value = object->local_got_offset(r_sym, |
3923 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3924 | } |
3925 | switch (r_type) | |
3926 | { | |
3927 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3928 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3929 | break; |
3930 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3931 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3932 | break; |
3933 | } | |
3934 | break; | |
3935 | } | |
3936 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3937 | _("unsupported reloc %u"), | |
3938 | r_type); | |
3939 | break; | |
3940 | ||
9efe6174 ILT |
3941 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3942 | // This seems to be mainly so that we can find the addition | |
3943 | // instruction if there is one. There doesn't seem to be any | |
3944 | // actual relocation to apply. | |
3945 | break; | |
3946 | ||
f5314dd5 DM |
3947 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3948 | // If we're creating a shared library, a dynamic relocation will | |
3949 | // have been created for this location, so do not apply it now. | |
3950 | if (!parameters->options().shared()) | |
3951 | { | |
2ea97941 ILT |
3952 | value -= tls_segment->memsz(); |
3953 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3954 | } |
3955 | break; | |
3956 | ||
3957 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3958 | // If we're creating a shared library, a dynamic relocation will | |
3959 | // have been created for this location, so do not apply it now. | |
3960 | if (!parameters->options().shared()) | |
3961 | { | |
2ea97941 ILT |
3962 | value -= tls_segment->memsz(); |
3963 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3964 | } |
3965 | break; | |
3966 | } | |
3967 | } | |
3968 | ||
a5a5f7a3 DM |
3969 | // Relax a call instruction. |
3970 | ||
3971 | template<int size, bool big_endian> | |
3972 | inline void | |
3973 | Target_sparc<size, big_endian>::Relocate::relax_call( | |
3974 | Target_sparc<size, big_endian>* target, | |
3975 | unsigned char* view, | |
3976 | const elfcpp::Rela<size, big_endian>& rela, | |
3977 | section_size_type view_size) | |
3978 | { | |
3979 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3980 | Insntype *wv = reinterpret_cast<Insntype*>(view); | |
3981 | Insntype call_insn, delay_insn, set_insn; | |
3982 | uint32_t op3, reg, off; | |
3983 | ||
3984 | // This code tries to relax call instructions that meet | |
3985 | // certain criteria. | |
3986 | // | |
3987 | // The first criteria is that the call must be such that the return | |
3988 | // address which the call writes into %o7 is unused. Two sequences | |
3989 | // meet this criteria, and are used to implement tail calls. | |
3990 | // | |
3991 | // Leaf function tail call: | |
3992 | // | |
3993 | // or %o7, %g0, %ANY_REG | |
3994 | // call FUNC | |
3995 | // or %ANY_REG, %g0, %o7 | |
3996 | // | |
3997 | // Non-leaf function tail call: | |
3998 | // | |
3999 | // call FUNC | |
4000 | // restore | |
4001 | // | |
4002 | // The second criteria is that the call destination is close. If | |
4003 | // the displacement can fit in a signed 22-bit immediate field of a | |
4004 | // pre-V9 branch, we can do it. If we are generating a 64-bit | |
4005 | // object or a 32-bit object with ELF machine type EF_SPARC32PLUS, | |
4006 | // and the displacement fits in a signed 19-bit immediate field, | |
4007 | // then we can use a V9 branch. | |
4008 | ||
4009 | // Make sure the delay instruction can be safely accessed. | |
4010 | if (rela.get_r_offset() + 8 > view_size) | |
4011 | return; | |
4012 | ||
4013 | call_insn = elfcpp::Swap<32, true>::readval(wv); | |
4014 | delay_insn = elfcpp::Swap<32, true>::readval(wv + 1); | |
4015 | ||
4016 | // Make sure it is really a call instruction. | |
4017 | if (((call_insn >> 30) & 0x3) != 1) | |
4018 | return; | |
4019 | ||
4020 | if (((delay_insn >> 30) & 0x3) != 2) | |
4021 | return; | |
4022 | ||
4023 | // Accept only a restore or an integer arithmetic operation whose | |
4024 | // sole side effect is to write the %o7 register (and perhaps set | |
4025 | // the condition codes, which are considered clobbered across | |
4026 | // function calls). | |
4027 | // | |
4028 | // For example, we don't want to match a tagged addition or | |
4029 | // subtraction. We also don't want to match something like a | |
4030 | // divide. | |
4031 | // | |
4032 | // Specifically we accept add{,cc}, and{,cc}, or{,cc}, | |
4033 | // xor{,cc}, sub{,cc}, andn{,cc}, orn{,cc}, and xnor{,cc}. | |
4034 | ||
4035 | op3 = (delay_insn >> 19) & 0x3f; | |
4036 | reg = (delay_insn >> 25) & 0x1f; | |
4037 | if (op3 != 0x3d | |
4038 | && ((op3 & 0x28) != 0 || reg != 15)) | |
4039 | return; | |
4040 | ||
4041 | // For non-restore instructions, make sure %o7 isn't | |
4042 | // an input. | |
4043 | if (op3 != 0x3d) | |
4044 | { | |
4045 | // First check RS1 | |
4046 | reg = (delay_insn >> 14) & 0x15; | |
4047 | if (reg == 15) | |
4048 | return; | |
4049 | ||
4050 | // And if non-immediate, check RS2 | |
4051 | if (((delay_insn >> 13) & 1) == 0) | |
4052 | { | |
4053 | reg = (delay_insn & 0x1f); | |
4054 | if (reg == 15) | |
4055 | return; | |
4056 | } | |
4057 | } | |
4058 | ||
4059 | // Now check the branch distance. We are called after the | |
4060 | // call has been relocated, so we just have to peek at the | |
4061 | // offset contained in the instruction. | |
4062 | off = call_insn & 0x3fffffff; | |
4063 | if ((off & 0x3fe00000) != 0 | |
4064 | && (off & 0x3fe00000) != 0x3fe00000) | |
4065 | return; | |
4066 | ||
4067 | if ((size == 64 || target->elf_machine_ == elfcpp::EM_SPARC32PLUS) | |
4068 | && ((off & 0x3c0000) == 0 | |
4069 | || (off & 0x3c0000) == 0x3c0000)) | |
4070 | { | |
4071 | // ba,pt %xcc, FUNC | |
4072 | call_insn = 0x10680000 | (off & 0x07ffff); | |
4073 | } | |
4074 | else | |
4075 | { | |
4076 | // ba FUNC | |
4077 | call_insn = 0x10800000 | (off & 0x3fffff); | |
4078 | } | |
4079 | elfcpp::Swap<32, true>::writeval(wv, call_insn); | |
4080 | ||
4081 | // See if we can NOP out the delay slot instruction. We peek | |
4082 | // at the instruction before the call to make sure we're dealing | |
4083 | // with exactly the: | |
4084 | // | |
4085 | // or %o7, %g0, %ANY_REG | |
4086 | // call | |
4087 | // or %ANY_REG, %g0, %o7 | |
4088 | // | |
4089 | // case. Otherwise this might be a tricky piece of hand written | |
4090 | // assembler calculating %o7 in some non-trivial way, and therefore | |
4091 | // we can't be sure that NOP'ing out the delay slot is safe. | |
4092 | if (op3 == 0x02 | |
4093 | && rela.get_r_offset() >= 4) | |
4094 | { | |
4095 | if ((delay_insn & ~(0x1f << 14)) != 0x9e100000) | |
4096 | return; | |
4097 | ||
4098 | set_insn = elfcpp::Swap<32, true>::readval(wv - 1); | |
4099 | if ((set_insn & ~(0x1f << 25)) != 0x8013c000) | |
4100 | return; | |
4101 | ||
4102 | reg = (set_insn >> 25) & 0x1f; | |
4103 | if (reg == 0 || reg == 15) | |
4104 | return; | |
4105 | if (reg != ((delay_insn >> 14) & 0x1f)) | |
4106 | return; | |
4107 | ||
4108 | // All tests pass, nop it out. | |
4109 | elfcpp::Swap<32, true>::writeval(wv + 1, sparc_nop); | |
4110 | } | |
4111 | } | |
4112 | ||
f5314dd5 DM |
4113 | // Relocate section data. |
4114 | ||
4115 | template<int size, bool big_endian> | |
4116 | void | |
4117 | Target_sparc<size, big_endian>::relocate_section( | |
4118 | const Relocate_info<size, big_endian>* relinfo, | |
4119 | unsigned int sh_type, | |
4120 | const unsigned char* prelocs, | |
4121 | size_t reloc_count, | |
4122 | Output_section* output_section, | |
4123 | bool needs_special_offset_handling, | |
4124 | unsigned char* view, | |
4125 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
4126 | section_size_type view_size, |
4127 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
4128 | { |
4129 | typedef Target_sparc<size, big_endian> Sparc; | |
4130 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
4131 | ||
4132 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4133 | ||
4134 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
4135 | Sparc_relocate>( | |
4136 | relinfo, | |
4137 | this, | |
4138 | prelocs, | |
4139 | reloc_count, | |
4140 | output_section, | |
4141 | needs_special_offset_handling, | |
4142 | view, | |
4143 | address, | |
364c7fa5 ILT |
4144 | view_size, |
4145 | reloc_symbol_changes); | |
f5314dd5 DM |
4146 | } |
4147 | ||
4148 | // Return the size of a relocation while scanning during a relocatable | |
4149 | // link. | |
4150 | ||
4151 | template<int size, bool big_endian> | |
4152 | unsigned int | |
4153 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
4154 | unsigned int, | |
4155 | Relobj*) | |
4156 | { | |
4157 | // We are always SHT_RELA, so we should never get here. | |
4158 | gold_unreachable(); | |
4159 | return 0; | |
4160 | } | |
4161 | ||
4162 | // Scan the relocs during a relocatable link. | |
4163 | ||
4164 | template<int size, bool big_endian> | |
4165 | void | |
4166 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
4167 | Symbol_table* symtab, |
4168 | Layout* layout, | |
6fa2a40b | 4169 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
4170 | unsigned int data_shndx, |
4171 | unsigned int sh_type, | |
4172 | const unsigned char* prelocs, | |
4173 | size_t reloc_count, | |
4174 | Output_section* output_section, | |
4175 | bool needs_special_offset_handling, | |
4176 | size_t local_symbol_count, | |
4177 | const unsigned char* plocal_symbols, | |
4178 | Relocatable_relocs* rr) | |
4179 | { | |
4180 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4181 | ||
4182 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
4183 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
4184 | ||
4185 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
4186 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
4187 | symtab, |
4188 | layout, | |
4189 | object, | |
4190 | data_shndx, | |
4191 | prelocs, | |
4192 | reloc_count, | |
4193 | output_section, | |
4194 | needs_special_offset_handling, | |
4195 | local_symbol_count, | |
4196 | plocal_symbols, | |
4197 | rr); | |
4198 | } | |
4199 | ||
7404fe1b | 4200 | // Emit relocations for a section. |
f5314dd5 DM |
4201 | |
4202 | template<int size, bool big_endian> | |
4203 | void | |
7404fe1b | 4204 | Target_sparc<size, big_endian>::relocate_relocs( |
f5314dd5 DM |
4205 | const Relocate_info<size, big_endian>* relinfo, |
4206 | unsigned int sh_type, | |
4207 | const unsigned char* prelocs, | |
4208 | size_t reloc_count, | |
4209 | Output_section* output_section, | |
4210 | off_t offset_in_output_section, | |
4211 | const Relocatable_relocs* rr, | |
4212 | unsigned char* view, | |
4213 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
4214 | section_size_type view_size, | |
4215 | unsigned char* reloc_view, | |
4216 | section_size_type reloc_view_size) | |
4217 | { | |
4218 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4219 | ||
7404fe1b | 4220 | gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>( |
f5314dd5 DM |
4221 | relinfo, |
4222 | prelocs, | |
4223 | reloc_count, | |
4224 | output_section, | |
4225 | offset_in_output_section, | |
4226 | rr, | |
4227 | view, | |
4228 | view_address, | |
4229 | view_size, | |
4230 | reloc_view, | |
4231 | reloc_view_size); | |
4232 | } | |
4233 | ||
4234 | // Return the value to use for a dynamic which requires special | |
4235 | // treatment. This is how we support equality comparisons of function | |
4236 | // pointers across shared library boundaries, as described in the | |
4237 | // processor specific ABI supplement. | |
4238 | ||
4239 | template<int size, bool big_endian> | |
4240 | uint64_t | |
4241 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
4242 | { | |
4243 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
4244 | return this->plt_section()->address() + gsym->plt_offset(); | |
4245 | } | |
4246 | ||
a4d85145 DM |
4247 | // do_make_elf_object to override the same function in the base class. |
4248 | // We need to use a target-specific sub-class of | |
4249 | // Sized_relobj_file<size, big_endian> to process SPARC specific bits | |
4250 | // of the ELF headers. Hence we need to have our own ELF object creation. | |
4251 | ||
4252 | template<int size, bool big_endian> | |
4253 | Object* | |
4254 | Target_sparc<size, big_endian>::do_make_elf_object( | |
4255 | const std::string& name, | |
4256 | Input_file* input_file, | |
4257 | off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr) | |
4258 | { | |
4259 | elfcpp::Elf_Half machine = ehdr.get_e_machine(); | |
4260 | elfcpp::Elf_Word flags = ehdr.get_e_flags(); | |
4261 | elfcpp::Elf_Word omm, mm; | |
2e702c99 | 4262 | |
a4d85145 DM |
4263 | switch (machine) |
4264 | { | |
4265 | case elfcpp::EM_SPARC32PLUS: | |
4266 | this->elf_machine_ = elfcpp::EM_SPARC32PLUS; | |
4267 | break; | |
4268 | ||
4269 | case elfcpp::EM_SPARC: | |
4270 | case elfcpp::EM_SPARCV9: | |
4271 | break; | |
4272 | ||
4273 | default: | |
4274 | break; | |
4275 | } | |
4276 | ||
4277 | if (!this->elf_flags_set_) | |
4278 | { | |
4279 | this->elf_flags_ = flags; | |
4280 | this->elf_flags_set_ = true; | |
4281 | } | |
4282 | else | |
4283 | { | |
4284 | // Accumulate cpu feature bits. | |
4285 | this->elf_flags_ |= (flags & (elfcpp::EF_SPARC_32PLUS | |
4286 | | elfcpp::EF_SPARC_SUN_US1 | |
4287 | | elfcpp::EF_SPARC_HAL_R1 | |
4288 | | elfcpp::EF_SPARC_SUN_US3)); | |
4289 | ||
4290 | // Bump the memory model setting to the most restrictive | |
4291 | // one we encounter. | |
4292 | omm = (this->elf_flags_ & elfcpp::EF_SPARCV9_MM); | |
4293 | mm = (flags & elfcpp::EF_SPARCV9_MM); | |
4294 | if (omm != mm) | |
4295 | { | |
4296 | if (mm == elfcpp::EF_SPARCV9_TSO) | |
4297 | { | |
4298 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4299 | this->elf_flags_ |= elfcpp::EF_SPARCV9_TSO; | |
4300 | } | |
4301 | else if (mm == elfcpp::EF_SPARCV9_PSO | |
4302 | && omm == elfcpp::EF_SPARCV9_RMO) | |
4303 | { | |
4304 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4305 | this->elf_flags_ |= elfcpp::EF_SPARCV9_PSO; | |
4306 | } | |
4307 | } | |
4308 | } | |
4309 | ||
4310 | // Validate that the little-endian flag matches how we've | |
4311 | // been instantiated. | |
4312 | if (!(flags & elfcpp::EF_SPARC_LEDATA) != big_endian) | |
4313 | { | |
4314 | if (big_endian) | |
4315 | gold_error(_("%s: little endian elf flag set on BE object"), | |
4316 | name.c_str()); | |
4317 | else | |
4318 | gold_error(_("%s: little endian elf flag clear on LE object"), | |
4319 | name.c_str()); | |
4320 | } | |
4321 | ||
4322 | return Target::do_make_elf_object(name, input_file, offset, ehdr); | |
4323 | } | |
4324 | ||
4325 | // Adjust ELF file header. | |
4326 | ||
4327 | template<int size, bool big_endian> | |
4328 | void | |
4329 | Target_sparc<size, big_endian>::do_adjust_elf_header( | |
4330 | unsigned char* view, | |
4331 | int len) const | |
4332 | { | |
4333 | elfcpp::Ehdr_write<size, big_endian> oehdr(view); | |
4334 | ||
4335 | oehdr.put_e_machine(this->elf_machine_); | |
4336 | oehdr.put_e_flags(this->elf_flags_); | |
4337 | ||
4338 | Sized_target<size, big_endian>::do_adjust_elf_header(view, len); | |
4339 | } | |
4340 | ||
f5314dd5 DM |
4341 | // The selector for sparc object files. |
4342 | ||
4343 | template<int size, bool big_endian> | |
4344 | class Target_selector_sparc : public Target_selector | |
4345 | { | |
4346 | public: | |
4347 | Target_selector_sparc() | |
4348 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
03ef7571 ILT |
4349 | (size == 64 ? "elf64-sparc" : "elf32-sparc"), |
4350 | (size == 64 ? "elf64_sparc" : "elf32_sparc")) | |
f5314dd5 DM |
4351 | { } |
4352 | ||
2e702c99 RM |
4353 | virtual Target* |
4354 | do_recognize(Input_file*, off_t, int machine, int, int) | |
f5314dd5 DM |
4355 | { |
4356 | switch (size) | |
4357 | { | |
4358 | case 64: | |
2ea97941 | 4359 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
4360 | return NULL; |
4361 | break; | |
4362 | ||
4363 | case 32: | |
2ea97941 ILT |
4364 | if (machine != elfcpp::EM_SPARC |
4365 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
4366 | return NULL; |
4367 | break; | |
4368 | ||
4369 | default: | |
4370 | return NULL; | |
4371 | } | |
4372 | ||
7f055c20 | 4373 | return this->instantiate_target(); |
f5314dd5 DM |
4374 | } |
4375 | ||
2e702c99 RM |
4376 | virtual Target* |
4377 | do_instantiate_target() | |
7f055c20 | 4378 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
4379 | }; |
4380 | ||
4381 | Target_selector_sparc<32, true> target_selector_sparc32; | |
4382 | Target_selector_sparc<64, true> target_selector_sparc64; | |
4383 | ||
4384 | } // End anonymous namespace. |