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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, | |
bfdfa4cd AM |
240 | const elfcpp::Sym<size, big_endian>& lsym, |
241 | bool is_discarded); | |
f5314dd5 DM |
242 | |
243 | inline void | |
ad0f2072 | 244 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 245 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
246 | unsigned int data_shndx, |
247 | Output_section* output_section, | |
248 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
249 | Symbol* gsym); | |
250 | ||
21bb3914 ST |
251 | inline bool |
252 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
253 | Target_sparc* , |
254 | Sized_relobj_file<size, big_endian>* , | |
21bb3914 | 255 | unsigned int , |
2e702c99 RM |
256 | Output_section* , |
257 | const elfcpp::Rela<size, big_endian>& , | |
258 | unsigned int , | |
259 | const elfcpp::Sym<size, big_endian>&) | |
21bb3914 ST |
260 | { return false; } |
261 | ||
262 | inline bool | |
263 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
2e702c99 RM |
264 | Target_sparc* , |
265 | Sized_relobj_file<size, big_endian>* , | |
266 | unsigned int , | |
267 | Output_section* , | |
268 | const elfcpp::Rela<size, | |
269 | big_endian>& , | |
270 | unsigned int , Symbol*) | |
21bb3914 ST |
271 | { return false; } |
272 | ||
273 | ||
32b769e1 | 274 | private: |
f5314dd5 | 275 | static void |
6fa2a40b | 276 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
277 | unsigned int r_type); |
278 | ||
279 | static void | |
6fa2a40b | 280 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
281 | unsigned int r_type, Symbol*); |
282 | ||
283 | static void | |
284 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
285 | Target_sparc* target); | |
32b769e1 DM |
286 | |
287 | void | |
288 | check_non_pic(Relobj*, unsigned int r_type); | |
289 | ||
8c2bf391 DM |
290 | bool |
291 | reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, | |
292 | unsigned int r_type); | |
293 | ||
32b769e1 DM |
294 | // Whether we have issued an error about a non-PIC compilation. |
295 | bool issued_non_pic_error_; | |
f5314dd5 DM |
296 | }; |
297 | ||
298 | // The class which implements relocation. | |
299 | class Relocate | |
300 | { | |
301 | public: | |
302 | Relocate() | |
abd242a9 | 303 | : ignore_gd_add_(false), reloc_adjust_addr_(NULL) |
f5314dd5 DM |
304 | { } |
305 | ||
306 | ~Relocate() | |
307 | { | |
308 | if (this->ignore_gd_add_) | |
309 | { | |
310 | // FIXME: This needs to specify the location somehow. | |
311 | gold_error(_("missing expected TLS relocation")); | |
312 | } | |
313 | } | |
314 | ||
315 | // Do a relocation. Return false if the caller should not issue | |
316 | // any warnings about this relocation. | |
317 | inline bool | |
318 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
319 | Output_section*, size_t relnum, |
320 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
321 | unsigned int r_type, const Sized_symbol<size>*, |
322 | const Symbol_value<size>*, | |
323 | unsigned char*, | |
324 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
325 | section_size_type); | |
326 | ||
327 | private: | |
328 | // Do a TLS relocation. | |
329 | inline void | |
330 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
2e702c99 | 331 | size_t relnum, const elfcpp::Rela<size, big_endian>&, |
f5314dd5 DM |
332 | unsigned int r_type, const Sized_symbol<size>*, |
333 | const Symbol_value<size>*, | |
334 | unsigned char*, | |
335 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
336 | section_size_type); | |
337 | ||
a5a5f7a3 DM |
338 | inline void |
339 | relax_call(Target_sparc<size, big_endian>* target, | |
340 | unsigned char* view, | |
341 | const elfcpp::Rela<size, big_endian>& rela, | |
342 | section_size_type view_size); | |
343 | ||
f5314dd5 DM |
344 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD |
345 | bool ignore_gd_add_; | |
abd242a9 DM |
346 | |
347 | // If we hit a reloc at this view address, adjust it back by 4 bytes. | |
348 | unsigned char *reloc_adjust_addr_; | |
f5314dd5 DM |
349 | }; |
350 | ||
351 | // A class which returns the size required for a relocation type, | |
352 | // used while scanning relocs during a relocatable link. | |
353 | class Relocatable_size_for_reloc | |
354 | { | |
355 | public: | |
356 | unsigned int | |
357 | get_size_for_reloc(unsigned int, Relobj*); | |
358 | }; | |
359 | ||
360 | // Get the GOT section, creating it if necessary. | |
361 | Output_data_got<size, big_endian>* | |
362 | got_section(Symbol_table*, Layout*); | |
363 | ||
8c2bf391 DM |
364 | // Create the PLT section. |
365 | void | |
366 | make_plt_section(Symbol_table* symtab, Layout* layout); | |
367 | ||
f5314dd5 DM |
368 | // Create a PLT entry for a global symbol. |
369 | void | |
370 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
371 | ||
8c2bf391 DM |
372 | // Create a PLT entry for a local STT_GNU_IFUNC symbol. |
373 | void | |
374 | make_local_ifunc_plt_entry(Symbol_table*, Layout*, | |
375 | Sized_relobj_file<size, big_endian>* relobj, | |
376 | unsigned int local_sym_index); | |
377 | ||
f5314dd5 DM |
378 | // Create a GOT entry for the TLS module index. |
379 | unsigned int | |
380 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
6fa2a40b | 381 | Sized_relobj_file<size, big_endian>* object); |
f5314dd5 DM |
382 | |
383 | // Return the gsym for "__tls_get_addr". Cache if not already | |
384 | // cached. | |
385 | Symbol* | |
386 | tls_get_addr_sym(Symbol_table* symtab) | |
387 | { | |
388 | if (!this->tls_get_addr_sym_) | |
389 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
390 | gold_assert(this->tls_get_addr_sym_); | |
391 | return this->tls_get_addr_sym_; | |
392 | } | |
393 | ||
394 | // Get the PLT section. | |
8c2bf391 | 395 | Output_data_plt_sparc<size, big_endian>* |
f5314dd5 DM |
396 | plt_section() const |
397 | { | |
398 | gold_assert(this->plt_ != NULL); | |
399 | return this->plt_; | |
400 | } | |
401 | ||
402 | // Get the dynamic reloc section, creating it if necessary. | |
403 | Reloc_section* | |
404 | rela_dyn_section(Layout*); | |
405 | ||
8c2bf391 DM |
406 | // Get the section to use for IFUNC relocations. |
407 | Reloc_section* | |
408 | rela_ifunc_section(Layout*); | |
409 | ||
f5314dd5 DM |
410 | // Copy a relocation against a global symbol. |
411 | void | |
ef9beddf | 412 | copy_reloc(Symbol_table* symtab, Layout* layout, |
2e702c99 | 413 | Sized_relobj_file<size, big_endian>* object, |
12c0daef ILT |
414 | unsigned int shndx, Output_section* output_section, |
415 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
416 | { | |
417 | this->copy_relocs_.copy_reloc(symtab, layout, | |
418 | symtab->get_sized_symbol<size>(sym), | |
419 | object, shndx, output_section, | |
420 | reloc, this->rela_dyn_section(layout)); | |
421 | } | |
f5314dd5 DM |
422 | |
423 | // Information about this specific target which we pass to the | |
424 | // general Target structure. | |
425 | static Target::Target_info sparc_info; | |
426 | ||
427 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
428 | // These values are exposed to the ABI in an incremental link. |
429 | // Do not renumber existing values without changing the version | |
430 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
431 | enum Got_type |
432 | { | |
433 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
434 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
435 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
436 | }; | |
437 | ||
438 | // The GOT section. | |
439 | Output_data_got<size, big_endian>* got_; | |
440 | // The PLT section. | |
441 | Output_data_plt_sparc<size, big_endian>* plt_; | |
442 | // The dynamic reloc section. | |
443 | Reloc_section* rela_dyn_; | |
8c2bf391 DM |
444 | // The section to use for IFUNC relocs. |
445 | Reloc_section* rela_ifunc_; | |
f5314dd5 | 446 | // Relocs saved to avoid a COPY reloc. |
12c0daef | 447 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
448 | // Space for variables copied with a COPY reloc. |
449 | Output_data_space* dynbss_; | |
450 | // Offset of the GOT entry for the TLS module index; | |
451 | unsigned int got_mod_index_offset_; | |
452 | // Cached pointer to __tls_get_addr symbol | |
453 | Symbol* tls_get_addr_sym_; | |
a4d85145 DM |
454 | // Accumulated elf machine type |
455 | elfcpp::Elf_Half elf_machine_; | |
456 | // Accumulated elf header flags | |
457 | elfcpp::Elf_Word elf_flags_; | |
458 | // Whether elf_flags_ has been set for the first time yet | |
459 | bool elf_flags_set_; | |
f5314dd5 DM |
460 | }; |
461 | ||
462 | template<> | |
463 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
464 | { | |
465 | 32, // size | |
466 | true, // is_big_endian | |
467 | elfcpp::EM_SPARC, // machine_code | |
468 | false, // has_make_symbol | |
469 | false, // has_resolve | |
470 | false, // has_code_fill | |
471 | true, // is_default_stack_executable | |
b3ce541e | 472 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
473 | '\0', // wrap_char |
474 | "/usr/lib/ld.so.1", // dynamic_linker | |
475 | 0x00010000, // default_text_segment_address | |
476 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 | 477 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
2e702c99 RM |
478 | false, // isolate_execinstr |
479 | 0, // rosegment_gap | |
8a5e3e08 ILT |
480 | elfcpp::SHN_UNDEF, // small_common_shndx |
481 | elfcpp::SHN_UNDEF, // large_common_shndx | |
482 | 0, // small_common_section_flags | |
05a352e6 DK |
483 | 0, // large_common_section_flags |
484 | NULL, // attributes_section | |
485 | NULL // attributes_vendor | |
f5314dd5 DM |
486 | }; |
487 | ||
488 | template<> | |
489 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
490 | { | |
491 | 64, // size | |
492 | true, // is_big_endian | |
493 | elfcpp::EM_SPARCV9, // machine_code | |
494 | false, // has_make_symbol | |
495 | false, // has_resolve | |
496 | false, // has_code_fill | |
497 | true, // is_default_stack_executable | |
b3ce541e | 498 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
499 | '\0', // wrap_char |
500 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
501 | 0x100000, // default_text_segment_address | |
502 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 | 503 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
2e702c99 RM |
504 | false, // isolate_execinstr |
505 | 0, // rosegment_gap | |
8a5e3e08 ILT |
506 | elfcpp::SHN_UNDEF, // small_common_shndx |
507 | elfcpp::SHN_UNDEF, // large_common_shndx | |
508 | 0, // small_common_section_flags | |
05a352e6 DK |
509 | 0, // large_common_section_flags |
510 | NULL, // attributes_section | |
511 | NULL // attributes_vendor | |
f5314dd5 DM |
512 | }; |
513 | ||
514 | // We have to take care here, even when operating in little-endian | |
515 | // mode, sparc instructions are still big endian. | |
516 | template<int size, bool big_endian> | |
517 | class Sparc_relocate_functions | |
518 | { | |
519 | private: | |
520 | // Do a simple relocation with the addend in the relocation. | |
521 | template<int valsize> | |
522 | static inline void | |
523 | rela(unsigned char* view, | |
524 | unsigned int right_shift, | |
525 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 526 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
527 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
528 | { | |
529 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
530 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
531 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 532 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
533 | |
534 | val &= ~dst_mask; | |
535 | reloc &= dst_mask; | |
536 | ||
537 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
538 | } | |
539 | ||
540 | // Do a simple relocation using a symbol value with the addend in | |
541 | // the relocation. | |
542 | template<int valsize> | |
543 | static inline void | |
544 | rela(unsigned char* view, | |
545 | unsigned int right_shift, | |
546 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 547 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
548 | const Symbol_value<size>* psymval, |
549 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
550 | { | |
551 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
552 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
553 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
554 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
555 | ||
556 | val &= ~dst_mask; | |
557 | reloc &= dst_mask; | |
558 | ||
559 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
560 | } | |
561 | ||
562 | // Do a simple relocation using a symbol value with the addend in | |
563 | // the relocation, unaligned. | |
564 | template<int valsize> | |
565 | static inline void | |
566 | rela_ua(unsigned char* view, | |
567 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
6fa2a40b | 568 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
569 | const Symbol_value<size>* psymval, |
570 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
571 | { | |
572 | typedef typename elfcpp::Swap_unaligned<valsize, | |
573 | big_endian>::Valtype Valtype; | |
574 | unsigned char* wv = view; | |
575 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
576 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
577 | ||
578 | val &= ~dst_mask; | |
579 | reloc &= dst_mask; | |
580 | ||
581 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
582 | } | |
583 | ||
584 | // Do a simple PC relative relocation with a Symbol_value with the | |
585 | // addend in the relocation. | |
586 | template<int valsize> | |
587 | static inline void | |
588 | pcrela(unsigned char* view, | |
589 | unsigned int right_shift, | |
590 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 591 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
592 | const Symbol_value<size>* psymval, |
593 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
594 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
595 | { | |
596 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
597 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
598 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
599 | Valtype reloc = ((psymval->value(object, addend) - address) | |
600 | >> right_shift); | |
601 | ||
602 | val &= ~dst_mask; | |
603 | reloc &= dst_mask; | |
604 | ||
605 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
606 | } | |
607 | ||
608 | template<int valsize> | |
609 | static inline void | |
610 | pcrela_unaligned(unsigned char* view, | |
6fa2a40b | 611 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
612 | const Symbol_value<size>* psymval, |
613 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
614 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
615 | { | |
616 | typedef typename elfcpp::Swap_unaligned<valsize, | |
617 | big_endian>::Valtype Valtype; | |
618 | unsigned char* wv = view; | |
619 | Valtype reloc = (psymval->value(object, addend) - address); | |
620 | ||
621 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
622 | } | |
623 | ||
624 | typedef Sparc_relocate_functions<size, big_endian> This; | |
625 | typedef Sparc_relocate_functions<size, true> This_insn; | |
626 | ||
627 | public: | |
628 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
629 | static inline void | |
630 | wdisp30(unsigned char* view, | |
6fa2a40b | 631 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
632 | const Symbol_value<size>* psymval, |
633 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
634 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
635 | { | |
636 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
637 | psymval, addend, address); | |
638 | } | |
639 | ||
640 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
641 | static inline void | |
642 | wdisp22(unsigned char* view, | |
6fa2a40b | 643 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
644 | const Symbol_value<size>* psymval, |
645 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
646 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
647 | { | |
648 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
649 | psymval, addend, address); | |
650 | } | |
651 | ||
652 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
653 | static inline void | |
654 | wdisp19(unsigned char* view, | |
6fa2a40b | 655 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
656 | const Symbol_value<size>* psymval, |
657 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
658 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
659 | { | |
660 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
661 | psymval, addend, address); | |
662 | } | |
663 | ||
664 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
665 | static inline void | |
666 | wdisp16(unsigned char* view, | |
6fa2a40b | 667 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
668 | const Symbol_value<size>* psymval, |
669 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
670 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
671 | { | |
672 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
673 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
674 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
675 | Valtype reloc = ((psymval->value(object, addend) - address) | |
676 | >> 2); | |
677 | ||
678 | // The relocation value is split between the low 14 bits, | |
679 | // and bits 20-21. | |
680 | val &= ~((0x3 << 20) | 0x3fff); | |
681 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
682 | | (reloc & 0x3ffff)); | |
683 | ||
684 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
685 | } | |
686 | ||
2615994e DM |
687 | // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2 |
688 | static inline void | |
689 | wdisp10(unsigned char* view, | |
690 | const Sized_relobj_file<size, big_endian>* object, | |
691 | const Symbol_value<size>* psymval, | |
692 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
693 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
694 | { | |
695 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
696 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
697 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
698 | Valtype reloc = ((psymval->value(object, addend) - address) | |
699 | >> 2); | |
700 | ||
701 | // The relocation value is split between the low bits 5-12, | |
702 | // and high bits 19-20. | |
703 | val &= ~((0x3 << 19) | (0xff << 5)); | |
704 | reloc = (((reloc & 0x300) << (19 - 8)) | |
705 | | ((reloc & 0xff) << (5 - 0))); | |
706 | ||
707 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
708 | } | |
709 | ||
f5314dd5 DM |
710 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 |
711 | static inline void | |
712 | pc22(unsigned char* view, | |
6fa2a40b | 713 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
714 | const Symbol_value<size>* psymval, |
715 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
716 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
717 | { | |
718 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
719 | psymval, addend, address); | |
720 | } | |
721 | ||
722 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
723 | static inline void | |
724 | pc10(unsigned char* view, | |
6fa2a40b | 725 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
726 | const Symbol_value<size>* psymval, |
727 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
728 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
729 | { | |
730 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
731 | psymval, addend, address); | |
732 | } | |
733 | ||
734 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
735 | static inline void | |
736 | hi22(unsigned char* view, | |
2ea97941 | 737 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
738 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
739 | { | |
2ea97941 | 740 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
741 | } |
742 | ||
743 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
744 | static inline void | |
745 | hi22(unsigned char* view, | |
6fa2a40b | 746 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
747 | const Symbol_value<size>* psymval, |
748 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
749 | { | |
750 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
751 | } | |
752 | ||
753 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
754 | static inline void | |
755 | pcplt22(unsigned char* view, | |
6fa2a40b | 756 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
757 | const Symbol_value<size>* psymval, |
758 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
759 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
760 | { | |
761 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
762 | psymval, addend, address); | |
763 | } | |
764 | ||
765 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
766 | static inline void | |
767 | lo10(unsigned char* view, | |
2ea97941 | 768 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
769 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
770 | { | |
2ea97941 | 771 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
772 | } |
773 | ||
774 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
775 | static inline void | |
776 | lo10(unsigned char* view, | |
6fa2a40b | 777 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
778 | const Symbol_value<size>* psymval, |
779 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
780 | { | |
781 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
782 | } | |
783 | ||
784 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
785 | static inline void | |
786 | lo10(unsigned char* view, | |
6fa2a40b | 787 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
788 | const Symbol_value<size>* psymval, |
789 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
790 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
791 | { | |
792 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
793 | psymval, addend, address); | |
794 | } | |
795 | ||
796 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
797 | static inline void | |
798 | olo10(unsigned char* view, | |
6fa2a40b | 799 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
800 | const Symbol_value<size>* psymval, |
801 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
802 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
803 | { | |
804 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
805 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
806 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
807 | Valtype reloc = psymval->value(object, addend); | |
808 | ||
809 | val &= ~0x1fff; | |
810 | reloc &= 0x3ff; | |
811 | reloc += addend2; | |
812 | reloc &= 0x1fff; | |
813 | ||
814 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
815 | } | |
816 | ||
817 | // R_SPARC_22: (Symbol + Addend) | |
818 | static inline void | |
819 | rela32_22(unsigned char* view, | |
6fa2a40b | 820 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
821 | const Symbol_value<size>* psymval, |
822 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
823 | { | |
824 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
825 | } | |
826 | ||
827 | // R_SPARC_13: (Symbol + Addend) | |
828 | static inline void | |
829 | rela32_13(unsigned char* view, | |
2ea97941 | 830 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
831 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
832 | { | |
2ea97941 | 833 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
834 | } |
835 | ||
836 | // R_SPARC_13: (Symbol + Addend) | |
837 | static inline void | |
838 | rela32_13(unsigned char* view, | |
6fa2a40b | 839 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
840 | const Symbol_value<size>* psymval, |
841 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
842 | { | |
843 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
844 | } | |
845 | ||
846 | // R_SPARC_UA16: (Symbol + Addend) | |
847 | static inline void | |
848 | ua16(unsigned char* view, | |
6fa2a40b | 849 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
850 | const Symbol_value<size>* psymval, |
851 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
852 | { | |
853 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
854 | } | |
855 | ||
856 | // R_SPARC_UA32: (Symbol + Addend) | |
857 | static inline void | |
858 | ua32(unsigned char* view, | |
6fa2a40b | 859 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
860 | const Symbol_value<size>* psymval, |
861 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
862 | { | |
863 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
864 | } | |
865 | ||
866 | // R_SPARC_UA64: (Symbol + Addend) | |
867 | static inline void | |
868 | ua64(unsigned char* view, | |
6fa2a40b | 869 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
870 | const Symbol_value<size>* psymval, |
871 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
872 | { | |
873 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
874 | object, psymval, addend); | |
875 | } | |
876 | ||
877 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
878 | static inline void | |
879 | disp8(unsigned char* view, | |
6fa2a40b | 880 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
881 | const Symbol_value<size>* psymval, |
882 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
883 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
884 | { | |
885 | This::template pcrela_unaligned<8>(view, object, psymval, | |
886 | addend, address); | |
887 | } | |
888 | ||
889 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
890 | static inline void | |
891 | disp16(unsigned char* view, | |
6fa2a40b | 892 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
893 | const Symbol_value<size>* psymval, |
894 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
895 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
896 | { | |
897 | This::template pcrela_unaligned<16>(view, object, psymval, | |
898 | addend, address); | |
899 | } | |
900 | ||
901 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
902 | static inline void | |
903 | disp32(unsigned char* view, | |
6fa2a40b | 904 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
905 | const Symbol_value<size>* psymval, |
906 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
907 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
908 | { | |
909 | This::template pcrela_unaligned<32>(view, object, psymval, | |
910 | addend, address); | |
911 | } | |
912 | ||
913 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
914 | static inline void | |
915 | disp64(unsigned char* view, | |
6fa2a40b | 916 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
917 | const Symbol_value<size>* psymval, |
918 | elfcpp::Elf_Xword addend, | |
919 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
920 | { | |
921 | This::template pcrela_unaligned<64>(view, object, psymval, | |
922 | addend, address); | |
923 | } | |
924 | ||
2615994e DM |
925 | // R_SPARC_H34: (Symbol + Addend) >> 12 |
926 | static inline void | |
927 | h34(unsigned char* view, | |
928 | const Sized_relobj_file<size, big_endian>* object, | |
929 | const Symbol_value<size>* psymval, | |
930 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
931 | { | |
932 | This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend); | |
933 | } | |
934 | ||
f5314dd5 DM |
935 | // R_SPARC_H44: (Symbol + Addend) >> 22 |
936 | static inline void | |
937 | h44(unsigned char* view, | |
6fa2a40b | 938 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
939 | const Symbol_value<size>* psymval, |
940 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
941 | { | |
942 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
943 | } | |
944 | ||
945 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
946 | static inline void | |
947 | m44(unsigned char* view, | |
6fa2a40b | 948 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
949 | const Symbol_value<size>* psymval, |
950 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
951 | { | |
952 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
953 | } | |
954 | ||
955 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
956 | static inline void | |
957 | l44(unsigned char* view, | |
6fa2a40b | 958 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
959 | const Symbol_value<size>* psymval, |
960 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
961 | { | |
962 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
963 | } | |
964 | ||
965 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
966 | static inline void | |
967 | hh22(unsigned char* view, | |
6fa2a40b | 968 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
969 | const Symbol_value<size>* psymval, |
970 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
971 | { | |
972 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
973 | } | |
974 | ||
975 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
976 | static inline void | |
977 | pc_hh22(unsigned char* view, | |
6fa2a40b | 978 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
979 | const Symbol_value<size>* psymval, |
980 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
981 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
982 | { | |
983 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
984 | psymval, addend, address); | |
985 | } | |
986 | ||
987 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
988 | static inline void | |
989 | hm10(unsigned char* view, | |
6fa2a40b | 990 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
991 | const Symbol_value<size>* psymval, |
992 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
993 | { | |
994 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
995 | } | |
996 | ||
997 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
998 | static inline void | |
999 | pc_hm10(unsigned char* view, | |
6fa2a40b | 1000 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1001 | const Symbol_value<size>* psymval, |
1002 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
1003 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
1004 | { | |
1005 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
1006 | psymval, addend, address); | |
1007 | } | |
1008 | ||
1009 | // R_SPARC_11: (Symbol + Addend) | |
1010 | static inline void | |
1011 | rela32_11(unsigned char* view, | |
6fa2a40b | 1012 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1013 | const Symbol_value<size>* psymval, |
1014 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1015 | { | |
1016 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
1017 | } | |
1018 | ||
1019 | // R_SPARC_10: (Symbol + Addend) | |
1020 | static inline void | |
1021 | rela32_10(unsigned char* view, | |
6fa2a40b | 1022 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1023 | const Symbol_value<size>* psymval, |
1024 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1025 | { | |
1026 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
1027 | } | |
1028 | ||
1029 | // R_SPARC_7: (Symbol + Addend) | |
1030 | static inline void | |
1031 | rela32_7(unsigned char* view, | |
6fa2a40b | 1032 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1033 | const Symbol_value<size>* psymval, |
1034 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1035 | { | |
1036 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
1037 | } | |
1038 | ||
1039 | // R_SPARC_6: (Symbol + Addend) | |
1040 | static inline void | |
1041 | rela32_6(unsigned char* view, | |
6fa2a40b | 1042 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1043 | const Symbol_value<size>* psymval, |
1044 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1045 | { | |
1046 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
1047 | } | |
1048 | ||
1049 | // R_SPARC_5: (Symbol + Addend) | |
1050 | static inline void | |
1051 | rela32_5(unsigned char* view, | |
6fa2a40b | 1052 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1053 | const Symbol_value<size>* psymval, |
1054 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1055 | { | |
1056 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
1057 | } | |
1058 | ||
1059 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
1060 | static inline void | |
1061 | ldo_hix22(unsigned char* view, | |
2ea97941 | 1062 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1063 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1064 | { | |
2ea97941 | 1065 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
1066 | } |
1067 | ||
1068 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
1069 | static inline void | |
1070 | ldo_lox10(unsigned char* view, | |
2ea97941 | 1071 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1072 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1073 | { | |
1074 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1075 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1076 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1077 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1078 | |
1079 | val &= ~0x1fff; | |
1080 | reloc &= 0x3ff; | |
1081 | ||
1082 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1083 | } | |
1084 | ||
1085 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1086 | static inline void | |
1087 | hix22(unsigned char* view, | |
2ea97941 | 1088 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1089 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1090 | { | |
1091 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1092 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1093 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1094 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1095 | |
1096 | val &= ~0x3fffff; | |
1097 | ||
1098 | reloc ^= ~(Valtype)0; | |
1099 | reloc >>= 10; | |
1100 | ||
1101 | reloc &= 0x3fffff; | |
1102 | ||
1103 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1104 | } | |
1105 | ||
2a1079e8 DM |
1106 | // R_SPARC_GOTDATA_OP_HIX22: @gdopoff(Symbol + Addend) >> 10 |
1107 | static inline void | |
1108 | gdop_hix22(unsigned char* view, | |
1109 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1110 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1111 | { | |
1112 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1113 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1114 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1115 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1116 | ||
1117 | val &= ~0x3fffff; | |
1118 | ||
1119 | if (reloc < 0) | |
1120 | reloc ^= ~static_cast<int32_t>(0); | |
1121 | reloc >>= 10; | |
1122 | ||
1123 | reloc &= 0x3fffff; | |
1124 | ||
1125 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1126 | } | |
1127 | ||
f5314dd5 DM |
1128 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 |
1129 | static inline void | |
1130 | hix22(unsigned char* view, | |
6fa2a40b | 1131 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1132 | const Symbol_value<size>* psymval, |
1133 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1134 | { | |
1135 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1136 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1137 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1138 | Valtype reloc = psymval->value(object, addend); | |
1139 | ||
1140 | val &= ~0x3fffff; | |
1141 | ||
1142 | reloc ^= ~(Valtype)0; | |
1143 | reloc >>= 10; | |
1144 | ||
1145 | reloc &= 0x3fffff; | |
1146 | ||
1147 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1148 | } | |
1149 | ||
1150 | ||
1151 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1152 | static inline void | |
1153 | lox10(unsigned char* view, | |
2ea97941 | 1154 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1155 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1156 | { | |
1157 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1158 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1159 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1160 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1161 | |
1162 | val &= ~0x1fff; | |
1163 | reloc &= 0x3ff; | |
1164 | reloc |= 0x1c00; | |
1165 | ||
1166 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1167 | } | |
1168 | ||
2a1079e8 DM |
1169 | // R_SPARC_GOTDATA_OP_LOX10: (@gdopoff(Symbol + Addend) & 0x3ff) | 0x1c00 |
1170 | static inline void | |
1171 | gdop_lox10(unsigned char* view, | |
1172 | typename elfcpp::Elf_types<size>::Elf_Addr value, | |
1173 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1174 | { | |
1175 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1176 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1177 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1178 | int32_t reloc = static_cast<int32_t>(value + addend); | |
1179 | ||
1180 | if (reloc < 0) | |
1181 | reloc = (reloc & 0x3ff) | 0x1c00; | |
1182 | else | |
1183 | reloc = (reloc & 0x3ff); | |
1184 | ||
1185 | val &= ~0x1fff; | |
1186 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1187 | } | |
1188 | ||
f5314dd5 DM |
1189 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 |
1190 | static inline void | |
1191 | lox10(unsigned char* view, | |
6fa2a40b | 1192 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1193 | const Symbol_value<size>* psymval, |
1194 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1195 | { | |
1196 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1197 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1198 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1199 | Valtype reloc = psymval->value(object, addend); | |
1200 | ||
1201 | val &= ~0x1fff; | |
1202 | reloc &= 0x3ff; | |
1203 | reloc |= 0x1c00; | |
1204 | ||
1205 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1206 | } | |
1207 | }; | |
1208 | ||
1209 | // Get the GOT section, creating it if necessary. | |
1210 | ||
1211 | template<int size, bool big_endian> | |
1212 | Output_data_got<size, big_endian>* | |
1213 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1214 | Layout* layout) | |
1215 | { | |
1216 | if (this->got_ == NULL) | |
1217 | { | |
1218 | gold_assert(symtab != NULL && layout != NULL); | |
1219 | ||
1220 | this->got_ = new Output_data_got<size, big_endian>(); | |
1221 | ||
82742395 ILT |
1222 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1223 | (elfcpp::SHF_ALLOC | |
1224 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1225 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1226 | |
1227 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1228 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1229 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1230 | this->got_, |
1231 | 0, 0, elfcpp::STT_OBJECT, | |
1232 | elfcpp::STB_LOCAL, | |
1233 | elfcpp::STV_HIDDEN, 0, | |
1234 | false, false); | |
1235 | } | |
1236 | ||
1237 | return this->got_; | |
1238 | } | |
1239 | ||
1240 | // Get the dynamic reloc section, creating it if necessary. | |
1241 | ||
1242 | template<int size, bool big_endian> | |
1243 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1244 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1245 | { | |
1246 | if (this->rela_dyn_ == NULL) | |
1247 | { | |
1248 | gold_assert(layout != NULL); | |
d98bc257 | 1249 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1250 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1251 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1252 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1253 | } |
1254 | return this->rela_dyn_; | |
1255 | } | |
1256 | ||
8c2bf391 DM |
1257 | // Get the section to use for IFUNC relocs, creating it if |
1258 | // necessary. These go in .rela.dyn, but only after all other dynamic | |
1259 | // relocations. They need to follow the other dynamic relocations so | |
1260 | // that they can refer to global variables initialized by those | |
1261 | // relocs. | |
1262 | ||
1263 | template<int size, bool big_endian> | |
1264 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1265 | Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout) | |
1266 | { | |
1267 | if (this->rela_ifunc_ == NULL) | |
1268 | { | |
1269 | // Make sure we have already created the dynamic reloc section. | |
1270 | this->rela_dyn_section(layout); | |
1271 | this->rela_ifunc_ = new Reloc_section(false); | |
1272 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, | |
1273 | elfcpp::SHF_ALLOC, this->rela_ifunc_, | |
1274 | ORDER_DYNAMIC_RELOCS, false); | |
1275 | gold_assert(this->rela_dyn_->output_section() | |
1276 | == this->rela_ifunc_->output_section()); | |
1277 | } | |
1278 | return this->rela_ifunc_; | |
1279 | } | |
1280 | ||
f5314dd5 DM |
1281 | // A class to handle the PLT data. |
1282 | ||
1283 | template<int size, bool big_endian> | |
1284 | class Output_data_plt_sparc : public Output_section_data | |
1285 | { | |
1286 | public: | |
1287 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1288 | size, big_endian> Reloc_section; | |
1289 | ||
1290 | Output_data_plt_sparc(Layout*); | |
1291 | ||
1292 | // Add an entry to the PLT. | |
8c2bf391 DM |
1293 | void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym); |
1294 | ||
1295 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. | |
1296 | unsigned int | |
1297 | add_local_ifunc_entry(Symbol_table*, Layout*, | |
1298 | Sized_relobj_file<size, big_endian>* relobj, | |
1299 | unsigned int local_sym_index); | |
f5314dd5 DM |
1300 | |
1301 | // Return the .rela.plt section data. | |
1302 | const Reloc_section* rel_plt() const | |
1303 | { | |
1304 | return this->rel_; | |
1305 | } | |
1306 | ||
8c2bf391 DM |
1307 | // Return where the IFUNC relocations should go. |
1308 | Reloc_section* | |
1309 | rela_ifunc(Symbol_table*, Layout*); | |
1310 | ||
1311 | void | |
1312 | emit_pending_ifunc_relocs(); | |
1313 | ||
1314 | // Return whether we created a section for IFUNC relocations. | |
1315 | bool | |
1316 | has_ifunc_section() const | |
1317 | { return this->ifunc_rel_ != NULL; } | |
1318 | ||
0e70b911 CC |
1319 | // Return the number of PLT entries. |
1320 | unsigned int | |
1321 | entry_count() const | |
8c2bf391 | 1322 | { return this->count_ + this->ifunc_count_; } |
0e70b911 CC |
1323 | |
1324 | // Return the offset of the first non-reserved PLT entry. | |
1325 | static unsigned int | |
1326 | first_plt_entry_offset() | |
1327 | { return 4 * base_plt_entry_size; } | |
1328 | ||
1329 | // Return the size of a PLT entry. | |
1330 | static unsigned int | |
1331 | get_plt_entry_size() | |
1332 | { return base_plt_entry_size; } | |
1333 | ||
8c2bf391 DM |
1334 | // Return the PLT address to use for a global symbol. |
1335 | uint64_t | |
1336 | address_for_global(const Symbol*); | |
1337 | ||
1338 | // Return the PLT address to use for a local symbol. | |
1339 | uint64_t | |
1340 | address_for_local(const Relobj*, unsigned int symndx); | |
1341 | ||
f5314dd5 DM |
1342 | protected: |
1343 | void do_adjust_output_section(Output_section* os); | |
1344 | ||
7d9e3d98 ILT |
1345 | // Write to a map file. |
1346 | void | |
1347 | do_print_to_mapfile(Mapfile* mapfile) const | |
1348 | { mapfile->print_output_data(this, _("** PLT")); } | |
1349 | ||
f5314dd5 DM |
1350 | private: |
1351 | // The size of an entry in the PLT. | |
1352 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1353 | ||
1354 | static const unsigned int plt_entries_per_block = 160; | |
1355 | static const unsigned int plt_insn_chunk_size = 24; | |
1356 | static const unsigned int plt_pointer_chunk_size = 8; | |
1357 | static const unsigned int plt_block_size = | |
1358 | (plt_entries_per_block | |
1359 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1360 | ||
8c2bf391 DM |
1361 | section_offset_type |
1362 | plt_index_to_offset(unsigned int index) | |
f5314dd5 | 1363 | { |
8c2bf391 | 1364 | section_offset_type offset; |
f5314dd5 | 1365 | |
8c2bf391 DM |
1366 | if (size == 32 || index < 32768) |
1367 | offset = index * base_plt_entry_size; | |
f5314dd5 DM |
1368 | else |
1369 | { | |
8c2bf391 | 1370 | unsigned int ext_index = index - 32768; |
f5314dd5 | 1371 | |
8c2bf391 DM |
1372 | offset = (32768 * base_plt_entry_size) |
1373 | + ((ext_index / plt_entries_per_block) | |
1374 | * plt_block_size) | |
1375 | + ((ext_index % plt_entries_per_block) | |
1376 | * plt_insn_chunk_size); | |
f5314dd5 | 1377 | } |
8c2bf391 DM |
1378 | return offset; |
1379 | } | |
1380 | ||
1381 | // Set the final size. | |
1382 | void | |
1383 | set_final_data_size() | |
1384 | { | |
1385 | unsigned int full_count = this->entry_count() + 4; | |
1386 | unsigned int extra = (size == 32 ? 4 : 0); | |
1387 | section_offset_type sz = plt_index_to_offset(full_count) + extra; | |
1388 | ||
1389 | return this->set_data_size(sz); | |
f5314dd5 DM |
1390 | } |
1391 | ||
1392 | // Write out the PLT data. | |
1393 | void | |
1394 | do_write(Output_file*); | |
1395 | ||
8c2bf391 DM |
1396 | struct Global_ifunc |
1397 | { | |
1398 | Reloc_section* rel; | |
1399 | Symbol* gsym; | |
1400 | unsigned int plt_index; | |
1401 | }; | |
1402 | ||
1403 | struct Local_ifunc | |
1404 | { | |
1405 | Reloc_section* rel; | |
1406 | Sized_relobj_file<size, big_endian>* object; | |
1407 | unsigned int local_sym_index; | |
1408 | unsigned int plt_index; | |
1409 | }; | |
1410 | ||
f5314dd5 DM |
1411 | // The reloc section. |
1412 | Reloc_section* rel_; | |
8c2bf391 DM |
1413 | // The IFUNC relocations, if necessary. These must follow the |
1414 | // regular relocations. | |
1415 | Reloc_section* ifunc_rel_; | |
f5314dd5 DM |
1416 | // The number of PLT entries. |
1417 | unsigned int count_; | |
8c2bf391 DM |
1418 | // The number of PLT entries for IFUNC symbols. |
1419 | unsigned int ifunc_count_; | |
1420 | // Global STT_GNU_IFUNC symbols. | |
1421 | std::vector<Global_ifunc> global_ifuncs_; | |
1422 | // Local STT_GNU_IFUNC symbols. | |
1423 | std::vector<Local_ifunc> local_ifuncs_; | |
f5314dd5 DM |
1424 | }; |
1425 | ||
4f2a9edd ILT |
1426 | // Define the constants as required by C++ standard. |
1427 | ||
1428 | template<int size, bool big_endian> | |
1429 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1430 | ||
1431 | template<int size, bool big_endian> | |
1432 | const unsigned int | |
1433 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1434 | ||
1435 | template<int size, bool big_endian> | |
1436 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1437 | ||
1438 | template<int size, bool big_endian> | |
1439 | const unsigned int | |
1440 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1441 | ||
1442 | template<int size, bool big_endian> | |
1443 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1444 | ||
f5314dd5 DM |
1445 | // Create the PLT section. The ordinary .got section is an argument, |
1446 | // since we need to refer to the start. | |
1447 | ||
1448 | template<int size, bool big_endian> | |
1449 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
8c2bf391 DM |
1450 | : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL), |
1451 | count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_() | |
f5314dd5 | 1452 | { |
d98bc257 | 1453 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1454 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1455 | elfcpp::SHF_ALLOC, this->rel_, |
1456 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1457 | } |
1458 | ||
1459 | template<int size, bool big_endian> | |
1460 | void | |
1461 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1462 | { | |
1463 | os->set_entsize(0); | |
1464 | } | |
1465 | ||
1466 | // Add an entry to the PLT. | |
1467 | ||
1468 | template<int size, bool big_endian> | |
1469 | void | |
8c2bf391 DM |
1470 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab, |
1471 | Layout* layout, | |
1472 | Symbol* gsym) | |
f5314dd5 DM |
1473 | { |
1474 | gold_assert(!gsym->has_plt_offset()); | |
1475 | ||
f5314dd5 | 1476 | section_offset_type plt_offset; |
8c2bf391 | 1477 | unsigned int index; |
f5314dd5 | 1478 | |
8c2bf391 DM |
1479 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
1480 | && gsym->can_use_relative_reloc(false)) | |
1481 | { | |
1482 | index = this->ifunc_count_; | |
1483 | plt_offset = plt_index_to_offset(index); | |
1484 | gsym->set_plt_offset(plt_offset); | |
1485 | ++this->ifunc_count_; | |
1486 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1487 | ||
1488 | struct Global_ifunc gi; | |
1489 | gi.rel = rel; | |
1490 | gi.gsym = gsym; | |
1491 | gi.plt_index = index; | |
1492 | this->global_ifuncs_.push_back(gi); | |
1493 | } | |
f5314dd5 DM |
1494 | else |
1495 | { | |
8c2bf391 DM |
1496 | plt_offset = plt_index_to_offset(this->count_ + 4); |
1497 | gsym->set_plt_offset(plt_offset); | |
1498 | ++this->count_; | |
1499 | gsym->set_needs_dynsym_entry(); | |
1500 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1501 | plt_offset, 0); | |
1502 | } | |
f5314dd5 | 1503 | |
8c2bf391 DM |
1504 | // Note that we don't need to save the symbol. The contents of the |
1505 | // PLT are independent of which symbols are used. The symbols only | |
1506 | // appear in the relocations. | |
1507 | } | |
1508 | ||
1509 | template<int size, bool big_endian> | |
1510 | unsigned int | |
1511 | Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry( | |
1512 | Symbol_table* symtab, | |
1513 | Layout* layout, | |
1514 | Sized_relobj_file<size, big_endian>* relobj, | |
1515 | unsigned int local_sym_index) | |
1516 | { | |
1517 | unsigned int index = this->ifunc_count_; | |
1518 | section_offset_type plt_offset; | |
1519 | ||
1520 | plt_offset = plt_index_to_offset(index); | |
1521 | ++this->ifunc_count_; | |
1522 | ||
1523 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1524 | ||
1525 | struct Local_ifunc li; | |
1526 | li.rel = rel; | |
1527 | li.object = relobj; | |
1528 | li.local_sym_index = local_sym_index; | |
1529 | li.plt_index = index; | |
1530 | this->local_ifuncs_.push_back(li); | |
1531 | ||
1532 | return plt_offset; | |
1533 | } | |
1534 | ||
1535 | // Emit any pending IFUNC plt relocations. | |
1536 | ||
1537 | template<int size, bool big_endian> | |
1538 | void | |
1539 | Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs() | |
1540 | { | |
1541 | // Emit any pending IFUNC relocs. | |
1542 | for (typename std::vector<Global_ifunc>::const_iterator p = | |
1543 | this->global_ifuncs_.begin(); | |
1544 | p != this->global_ifuncs_.end(); | |
1545 | ++p) | |
1546 | { | |
1547 | section_offset_type plt_offset; | |
1548 | unsigned int index; | |
1549 | ||
1550 | index = this->count_ + p->plt_index + 4; | |
1551 | plt_offset = this->plt_index_to_offset(index); | |
1552 | p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL, | |
1553 | this, plt_offset, 0); | |
1554 | } | |
1555 | ||
1556 | for (typename std::vector<Local_ifunc>::const_iterator p = | |
1557 | this->local_ifuncs_.begin(); | |
1558 | p != this->local_ifuncs_.end(); | |
1559 | ++p) | |
1560 | { | |
1561 | section_offset_type plt_offset; | |
1562 | unsigned int index; | |
1563 | ||
1564 | index = this->count_ + p->plt_index + 4; | |
1565 | plt_offset = this->plt_index_to_offset(index); | |
1566 | p->rel->add_symbolless_local_addend(p->object, p->local_sym_index, | |
1567 | elfcpp::R_SPARC_JMP_IREL, | |
1568 | this, plt_offset, 0); | |
f5314dd5 | 1569 | } |
8c2bf391 | 1570 | } |
f5314dd5 | 1571 | |
8c2bf391 DM |
1572 | // Return where the IFUNC relocations should go in the PLT. These |
1573 | // follow the non-IFUNC relocations. | |
f5314dd5 | 1574 | |
8c2bf391 DM |
1575 | template<int size, bool big_endian> |
1576 | typename Output_data_plt_sparc<size, big_endian>::Reloc_section* | |
1577 | Output_data_plt_sparc<size, big_endian>::rela_ifunc( | |
1578 | Symbol_table* symtab, | |
1579 | Layout* layout) | |
1580 | { | |
1581 | if (this->ifunc_rel_ == NULL) | |
1582 | { | |
1583 | this->ifunc_rel_ = new Reloc_section(false); | |
1584 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, | |
1585 | elfcpp::SHF_ALLOC, this->ifunc_rel_, | |
1586 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
1587 | gold_assert(this->ifunc_rel_->output_section() | |
1588 | == this->rel_->output_section()); | |
1589 | ||
1590 | if (parameters->doing_static_link()) | |
1591 | { | |
1592 | // A statically linked executable will only have a .rel.plt | |
1593 | // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL | |
1594 | // relocs for STT_GNU_IFUNC symbols. The library will use | |
1595 | // these symbols to locate the IRELATIVE and JMP_IREL relocs | |
1596 | // at program startup time. | |
1597 | symtab->define_in_output_data("__rela_iplt_start", NULL, | |
1598 | Symbol_table::PREDEFINED, | |
1599 | this->ifunc_rel_, 0, 0, | |
1600 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1601 | elfcpp::STV_HIDDEN, 0, false, true); | |
1602 | symtab->define_in_output_data("__rela_iplt_end", NULL, | |
1603 | Symbol_table::PREDEFINED, | |
1604 | this->ifunc_rel_, 0, 0, | |
1605 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1606 | elfcpp::STV_HIDDEN, 0, true, true); | |
1607 | } | |
1608 | } | |
1609 | return this->ifunc_rel_; | |
1610 | } | |
f5314dd5 | 1611 | |
8c2bf391 | 1612 | // Return the PLT address to use for a global symbol. |
f5314dd5 | 1613 | |
8c2bf391 DM |
1614 | template<int size, bool big_endian> |
1615 | uint64_t | |
1616 | Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym) | |
1617 | { | |
1618 | uint64_t offset = 0; | |
1619 | if (gsym->type() == elfcpp::STT_GNU_IFUNC | |
1620 | && gsym->can_use_relative_reloc(false)) | |
1621 | offset = plt_index_to_offset(this->count_ + 4); | |
1622 | return this->address() + offset; | |
1623 | } | |
1624 | ||
1625 | // Return the PLT address to use for a local symbol. These are always | |
1626 | // IRELATIVE relocs. | |
1627 | ||
1628 | template<int size, bool big_endian> | |
1629 | uint64_t | |
1630 | Output_data_plt_sparc<size, big_endian>::address_for_local( | |
1631 | const Relobj*, | |
1632 | unsigned int) | |
1633 | { | |
1634 | return this->address() + plt_index_to_offset(this->count_ + 4); | |
f5314dd5 DM |
1635 | } |
1636 | ||
1637 | static const unsigned int sparc_nop = 0x01000000; | |
1638 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1639 | static const unsigned int sparc_branch_always = 0x30800000; | |
1640 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1641 | static const unsigned int sparc_mov = 0x80100000; | |
1642 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1643 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1644 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1645 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1646 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1647 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1648 | ||
1649 | // Write out the PLT. | |
1650 | ||
1651 | template<int size, bool big_endian> | |
1652 | void | |
1653 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1654 | { | |
2ea97941 | 1655 | const off_t offset = this->offset(); |
f5314dd5 DM |
1656 | const section_size_type oview_size = |
1657 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1658 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1659 | unsigned char* pov = oview; |
1660 | ||
1661 | memset(pov, 0, base_plt_entry_size * 4); | |
8c2bf391 | 1662 | pov += this->first_plt_entry_offset(); |
f5314dd5 DM |
1663 | |
1664 | unsigned int plt_offset = base_plt_entry_size * 4; | |
8c2bf391 | 1665 | const unsigned int count = this->entry_count(); |
f5314dd5 DM |
1666 | |
1667 | if (size == 64) | |
1668 | { | |
1669 | unsigned int limit; | |
1670 | ||
1671 | limit = (count > 32768 ? 32768 : count); | |
1672 | ||
1673 | for (unsigned int i = 0; i < limit; ++i) | |
1674 | { | |
1675 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1676 | sparc_sethi_g1 + plt_offset); | |
1677 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1678 | sparc_branch_always_pt + | |
1679 | (((base_plt_entry_size - | |
1680 | (plt_offset + 4)) >> 2) & | |
1681 | 0x7ffff)); | |
1682 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1683 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1684 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1685 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1686 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1687 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1688 | ||
1689 | pov += base_plt_entry_size; | |
1690 | plt_offset += base_plt_entry_size; | |
1691 | } | |
1692 | ||
1693 | if (count > 32768) | |
1694 | { | |
1695 | unsigned int ext_cnt = count - 32768; | |
1696 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1697 | ||
1698 | for (unsigned int i = 0; i < blks; ++i) | |
1699 | { | |
1700 | unsigned int data_off = (plt_entries_per_block | |
1701 | * plt_insn_chunk_size) - 4; | |
1702 | ||
1703 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1704 | { | |
1705 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1706 | sparc_mov_o7_g5); | |
1707 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1708 | sparc_call_plus_8); | |
1709 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1710 | sparc_nop); | |
1711 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1712 | sparc_ldx_o7_imm_g1 + | |
1713 | (data_off & 0x1fff)); | |
1714 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1715 | sparc_jmpl_o7_g1_g1); | |
1716 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1717 | sparc_mov_g5_o7); | |
1718 | ||
1719 | elfcpp::Swap<64, big_endian>::writeval( | |
1720 | pov + 0x4 + data_off, | |
1721 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1722 | ||
1723 | pov += plt_insn_chunk_size; | |
1724 | data_off -= 16; | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1729 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1730 | { | |
1731 | unsigned int data_off = (sub_blk_cnt | |
1732 | * plt_insn_chunk_size) - 4; | |
1733 | ||
1734 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1735 | { | |
1736 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1737 | sparc_mov_o7_g5); | |
1738 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1739 | sparc_call_plus_8); | |
1740 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1741 | sparc_nop); | |
1742 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1743 | sparc_ldx_o7_imm_g1 + | |
1744 | (data_off & 0x1fff)); | |
1745 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1746 | sparc_jmpl_o7_g1_g1); | |
1747 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1748 | sparc_mov_g5_o7); | |
1749 | ||
1750 | elfcpp::Swap<64, big_endian>::writeval( | |
1751 | pov + 0x4 + data_off, | |
1752 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1753 | ||
1754 | pov += plt_insn_chunk_size; | |
1755 | data_off -= 16; | |
1756 | } | |
1757 | } | |
1758 | } | |
1759 | } | |
1760 | else | |
1761 | { | |
1762 | for (unsigned int i = 0; i < count; ++i) | |
1763 | { | |
1764 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1765 | sparc_sethi_g1 + plt_offset); | |
1766 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1767 | sparc_branch_always + | |
1768 | (((- (plt_offset + 4)) >> 2) & | |
1769 | 0x003fffff)); | |
1770 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1771 | ||
1772 | pov += base_plt_entry_size; | |
1773 | plt_offset += base_plt_entry_size; | |
1774 | } | |
1775 | ||
1776 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1777 | pov += 4; | |
1778 | } | |
1779 | ||
1780 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1781 | ||
2ea97941 | 1782 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1783 | } |
1784 | ||
8c2bf391 DM |
1785 | // Create the PLT section. |
1786 | ||
1787 | template<int size, bool big_endian> | |
1788 | void | |
1789 | Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab, | |
1790 | Layout* layout) | |
1791 | { | |
1792 | // Create the GOT sections first. | |
1793 | this->got_section(symtab, layout); | |
1794 | ||
1795 | // Ensure that .rela.dyn always appears before .rela.plt This is | |
1796 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1797 | // needs to include .rela.plt in it's range. | |
1798 | this->rela_dyn_section(layout); | |
1799 | ||
1800 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); | |
1801 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1802 | (elfcpp::SHF_ALLOC | |
1803 | | elfcpp::SHF_EXECINSTR | |
1804 | | elfcpp::SHF_WRITE), | |
1805 | this->plt_, ORDER_NON_RELRO_FIRST, false); | |
1806 | ||
1807 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1808 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
1809 | Symbol_table::PREDEFINED, | |
1810 | this->plt_, | |
1811 | 0, 0, elfcpp::STT_OBJECT, | |
1812 | elfcpp::STB_LOCAL, | |
1813 | elfcpp::STV_HIDDEN, 0, | |
1814 | false, false); | |
1815 | } | |
1816 | ||
f5314dd5 DM |
1817 | // Create a PLT entry for a global symbol. |
1818 | ||
1819 | template<int size, bool big_endian> | |
1820 | void | |
1821 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1822 | Layout* layout, | |
1823 | Symbol* gsym) | |
1824 | { | |
1825 | if (gsym->has_plt_offset()) | |
1826 | return; | |
1827 | ||
1828 | if (this->plt_ == NULL) | |
8c2bf391 | 1829 | this->make_plt_section(symtab, layout); |
f5314dd5 | 1830 | |
8c2bf391 DM |
1831 | this->plt_->add_entry(symtab, layout, gsym); |
1832 | } | |
f5314dd5 | 1833 | |
8c2bf391 | 1834 | // Make a PLT entry for a local STT_GNU_IFUNC symbol. |
f5314dd5 | 1835 | |
8c2bf391 DM |
1836 | template<int size, bool big_endian> |
1837 | void | |
1838 | Target_sparc<size, big_endian>::make_local_ifunc_plt_entry( | |
1839 | Symbol_table* symtab, | |
1840 | Layout* layout, | |
1841 | Sized_relobj_file<size, big_endian>* relobj, | |
1842 | unsigned int local_sym_index) | |
1843 | { | |
1844 | if (relobj->local_has_plt_offset(local_sym_index)) | |
1845 | return; | |
1846 | if (this->plt_ == NULL) | |
1847 | this->make_plt_section(symtab, layout); | |
1848 | unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, | |
1849 | relobj, | |
1850 | local_sym_index); | |
1851 | relobj->set_local_plt_offset(local_sym_index, plt_offset); | |
f5314dd5 DM |
1852 | } |
1853 | ||
0e70b911 CC |
1854 | // Return the number of entries in the PLT. |
1855 | ||
1856 | template<int size, bool big_endian> | |
1857 | unsigned int | |
1858 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1859 | { | |
1860 | if (this->plt_ == NULL) | |
1861 | return 0; | |
1862 | return this->plt_->entry_count(); | |
1863 | } | |
1864 | ||
1865 | // Return the offset of the first non-reserved PLT entry. | |
1866 | ||
1867 | template<int size, bool big_endian> | |
1868 | unsigned int | |
1869 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1870 | { | |
1871 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1872 | } | |
1873 | ||
1874 | // Return the size of each PLT entry. | |
1875 | ||
1876 | template<int size, bool big_endian> | |
1877 | unsigned int | |
1878 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1879 | { | |
1880 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1881 | } | |
1882 | ||
f5314dd5 DM |
1883 | // Create a GOT entry for the TLS module index. |
1884 | ||
1885 | template<int size, bool big_endian> | |
1886 | unsigned int | |
6fa2a40b CC |
1887 | Target_sparc<size, big_endian>::got_mod_index_entry( |
1888 | Symbol_table* symtab, | |
1889 | Layout* layout, | |
1890 | Sized_relobj_file<size, big_endian>* object) | |
f5314dd5 DM |
1891 | { |
1892 | if (this->got_mod_index_offset_ == -1U) | |
1893 | { | |
1894 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1895 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1896 | Output_data_got<size, big_endian>* got; | |
1897 | unsigned int got_offset; | |
1898 | ||
1899 | got = this->got_section(symtab, layout); | |
1900 | got_offset = got->add_constant(0); | |
1901 | rela_dyn->add_local(object, 0, | |
1902 | (size == 64 ? | |
1903 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1904 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1905 | got_offset, 0); | |
1906 | got->add_constant(0); | |
1907 | this->got_mod_index_offset_ = got_offset; | |
1908 | } | |
1909 | return this->got_mod_index_offset_; | |
1910 | } | |
1911 | ||
f5314dd5 DM |
1912 | // Optimize the TLS relocation type based on what we know about the |
1913 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1914 | // known at link time. | |
1915 | ||
1916 | static tls::Tls_optimization | |
1917 | optimize_tls_reloc(bool is_final, int r_type) | |
1918 | { | |
1919 | // If we are generating a shared library, then we can't do anything | |
1920 | // in the linker. | |
1921 | if (parameters->options().shared()) | |
1922 | return tls::TLSOPT_NONE; | |
1923 | ||
1924 | switch (r_type) | |
1925 | { | |
1926 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1927 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1928 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1929 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1930 | // These are General-Dynamic which permits fully general TLS | |
1931 | // access. Since we know that we are generating an executable, | |
1932 | // we can convert this to Initial-Exec. If we also know that | |
1933 | // this is a local symbol, we can further switch to Local-Exec. | |
1934 | if (is_final) | |
1935 | return tls::TLSOPT_TO_LE; | |
1936 | return tls::TLSOPT_TO_IE; | |
1937 | ||
1938 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1939 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1940 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1941 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1942 | // This is Local-Dynamic, which refers to a local symbol in the | |
1943 | // dynamic TLS block. Since we know that we generating an | |
1944 | // executable, we can switch to Local-Exec. | |
1945 | return tls::TLSOPT_TO_LE; | |
1946 | ||
1947 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1948 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1949 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1950 | // Another type of Local-Dynamic relocation. | |
1951 | return tls::TLSOPT_TO_LE; | |
1952 | ||
1953 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1954 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1955 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1956 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1957 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1958 | // These are Initial-Exec relocs which get the thread offset |
1959 | // from the GOT. If we know that we are linking against the | |
1960 | // local symbol, we can switch to Local-Exec, which links the | |
1961 | // thread offset into the instruction. | |
1962 | if (is_final) | |
1963 | return tls::TLSOPT_TO_LE; | |
1964 | return tls::TLSOPT_NONE; | |
1965 | ||
1966 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1967 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1968 | // When we already have Local-Exec, there is nothing further we | |
1969 | // can do. | |
1970 | return tls::TLSOPT_NONE; | |
1971 | ||
1972 | default: | |
1973 | gold_unreachable(); | |
1974 | } | |
1975 | } | |
1976 | ||
95a2c8d6 RS |
1977 | // Get the Reference_flags for a particular relocation. |
1978 | ||
1979 | template<int size, bool big_endian> | |
1980 | int | |
1981 | Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) | |
1982 | { | |
1983 | r_type &= 0xff; | |
1984 | switch (r_type) | |
1985 | { | |
1986 | case elfcpp::R_SPARC_NONE: | |
1987 | case elfcpp::R_SPARC_REGISTER: | |
1988 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1989 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1990 | // No symbol reference. | |
1991 | return 0; | |
1992 | ||
1993 | case elfcpp::R_SPARC_UA64: | |
1994 | case elfcpp::R_SPARC_64: | |
1995 | case elfcpp::R_SPARC_HIX22: | |
1996 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 1997 | case elfcpp::R_SPARC_H34: |
95a2c8d6 RS |
1998 | case elfcpp::R_SPARC_H44: |
1999 | case elfcpp::R_SPARC_M44: | |
2000 | case elfcpp::R_SPARC_L44: | |
2001 | case elfcpp::R_SPARC_HH22: | |
2002 | case elfcpp::R_SPARC_HM10: | |
2003 | case elfcpp::R_SPARC_LM22: | |
2004 | case elfcpp::R_SPARC_HI22: | |
2005 | case elfcpp::R_SPARC_LO10: | |
2006 | case elfcpp::R_SPARC_OLO10: | |
2007 | case elfcpp::R_SPARC_UA32: | |
2008 | case elfcpp::R_SPARC_32: | |
2009 | case elfcpp::R_SPARC_UA16: | |
2010 | case elfcpp::R_SPARC_16: | |
2011 | case elfcpp::R_SPARC_11: | |
2012 | case elfcpp::R_SPARC_10: | |
2013 | case elfcpp::R_SPARC_8: | |
2014 | case elfcpp::R_SPARC_7: | |
2015 | case elfcpp::R_SPARC_6: | |
2016 | case elfcpp::R_SPARC_5: | |
2017 | return Symbol::ABSOLUTE_REF; | |
2018 | ||
2019 | case elfcpp::R_SPARC_DISP8: | |
2020 | case elfcpp::R_SPARC_DISP16: | |
2021 | case elfcpp::R_SPARC_DISP32: | |
2022 | case elfcpp::R_SPARC_DISP64: | |
2023 | case elfcpp::R_SPARC_PC_HH22: | |
2024 | case elfcpp::R_SPARC_PC_HM10: | |
2025 | case elfcpp::R_SPARC_PC_LM22: | |
2026 | case elfcpp::R_SPARC_PC10: | |
2027 | case elfcpp::R_SPARC_PC22: | |
2028 | case elfcpp::R_SPARC_WDISP30: | |
2029 | case elfcpp::R_SPARC_WDISP22: | |
2030 | case elfcpp::R_SPARC_WDISP19: | |
2031 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2032 | case elfcpp::R_SPARC_WDISP10: |
95a2c8d6 RS |
2033 | return Symbol::RELATIVE_REF; |
2034 | ||
2035 | case elfcpp::R_SPARC_PLT64: | |
2036 | case elfcpp::R_SPARC_PLT32: | |
2037 | case elfcpp::R_SPARC_HIPLT22: | |
2038 | case elfcpp::R_SPARC_LOPLT10: | |
2039 | case elfcpp::R_SPARC_PCPLT10: | |
2040 | return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF; | |
2041 | ||
2042 | case elfcpp::R_SPARC_PCPLT32: | |
2043 | case elfcpp::R_SPARC_PCPLT22: | |
2044 | case elfcpp::R_SPARC_WPLT30: | |
2045 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; | |
2046 | ||
2047 | case elfcpp::R_SPARC_GOTDATA_OP: | |
2048 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2049 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2050 | case elfcpp::R_SPARC_GOT10: | |
2051 | case elfcpp::R_SPARC_GOT13: | |
2052 | case elfcpp::R_SPARC_GOT22: | |
2053 | // Absolute in GOT. | |
2054 | return Symbol::ABSOLUTE_REF; | |
2055 | ||
2056 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2057 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2058 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2059 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2060 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2061 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2062 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2063 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2064 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2065 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2066 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2067 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2068 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2069 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2070 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2071 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2072 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
2073 | case elfcpp::R_SPARC_TLS_IE_ADD: | |
2074 | return Symbol::TLS_REF; | |
2075 | ||
2076 | case elfcpp::R_SPARC_COPY: | |
2077 | case elfcpp::R_SPARC_GLOB_DAT: | |
2078 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2079 | case elfcpp::R_SPARC_JMP_IREL: |
95a2c8d6 | 2080 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2081 | case elfcpp::R_SPARC_IRELATIVE: |
95a2c8d6 RS |
2082 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2083 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2084 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2085 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2086 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2087 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2088 | default: | |
2089 | // Not expected. We will give an error later. | |
2090 | return 0; | |
2091 | } | |
2092 | } | |
2093 | ||
f5314dd5 DM |
2094 | // Generate a PLT entry slot for a call to __tls_get_addr |
2095 | template<int size, bool big_endian> | |
2096 | void | |
2097 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
2098 | Layout* layout, | |
2099 | Target_sparc<size, big_endian>* target) | |
2100 | { | |
2101 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
2102 | ||
2103 | target->make_plt_entry(symtab, layout, gsym); | |
2104 | } | |
2105 | ||
2106 | // Report an unsupported relocation against a local symbol. | |
2107 | ||
2108 | template<int size, bool big_endian> | |
2109 | void | |
2110 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
6fa2a40b | 2111 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2112 | unsigned int r_type) |
2113 | { | |
2114 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
2115 | object->name().c_str(), r_type); | |
2116 | } | |
2117 | ||
32b769e1 DM |
2118 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
2119 | // dynamic linker does not support it, issue an error. | |
2120 | ||
2121 | template<int size, bool big_endian> | |
2122 | void | |
2123 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
2124 | { | |
2125 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
2126 | ||
2127 | if (size == 64) | |
2128 | { | |
2129 | switch (r_type) | |
2130 | { | |
2131 | // These are the relocation types supported by glibc for sparc 64-bit. | |
2132 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2133 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2134 | case elfcpp::R_SPARC_COPY: |
2135 | case elfcpp::R_SPARC_64: | |
2136 | case elfcpp::R_SPARC_GLOB_DAT: | |
2137 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2138 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2139 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2140 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2141 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2142 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2143 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2144 | case elfcpp::R_SPARC_8: | |
2145 | case elfcpp::R_SPARC_16: | |
2146 | case elfcpp::R_SPARC_DISP8: | |
2147 | case elfcpp::R_SPARC_DISP16: | |
2148 | case elfcpp::R_SPARC_DISP32: | |
2149 | case elfcpp::R_SPARC_WDISP30: | |
2150 | case elfcpp::R_SPARC_LO10: | |
2151 | case elfcpp::R_SPARC_HI22: | |
2152 | case elfcpp::R_SPARC_OLO10: | |
2615994e | 2153 | case elfcpp::R_SPARC_H34: |
32b769e1 DM |
2154 | case elfcpp::R_SPARC_H44: |
2155 | case elfcpp::R_SPARC_M44: | |
2156 | case elfcpp::R_SPARC_L44: | |
2157 | case elfcpp::R_SPARC_HH22: | |
2158 | case elfcpp::R_SPARC_HM10: | |
2159 | case elfcpp::R_SPARC_LM22: | |
2160 | case elfcpp::R_SPARC_UA16: | |
2161 | case elfcpp::R_SPARC_UA32: | |
2162 | case elfcpp::R_SPARC_UA64: | |
2163 | return; | |
2164 | ||
2165 | default: | |
2166 | break; | |
2167 | } | |
2168 | } | |
2169 | else | |
2170 | { | |
2171 | switch (r_type) | |
2172 | { | |
2173 | // These are the relocation types supported by glibc for sparc 32-bit. | |
2174 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2175 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2176 | case elfcpp::R_SPARC_COPY: |
2177 | case elfcpp::R_SPARC_GLOB_DAT: | |
2178 | case elfcpp::R_SPARC_32: | |
2179 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2180 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2181 | case elfcpp::R_SPARC_TLS_DTPMOD32: |
2182 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2183 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2184 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2185 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2186 | case elfcpp::R_SPARC_8: | |
2187 | case elfcpp::R_SPARC_16: | |
2188 | case elfcpp::R_SPARC_DISP8: | |
2189 | case elfcpp::R_SPARC_DISP16: | |
2190 | case elfcpp::R_SPARC_DISP32: | |
2191 | case elfcpp::R_SPARC_LO10: | |
2192 | case elfcpp::R_SPARC_WDISP30: | |
2193 | case elfcpp::R_SPARC_HI22: | |
2194 | case elfcpp::R_SPARC_UA16: | |
2195 | case elfcpp::R_SPARC_UA32: | |
2196 | return; | |
2197 | ||
2198 | default: | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | // This prevents us from issuing more than one error per reloc | |
2204 | // section. But we can still wind up issuing more than one | |
2205 | // error per object file. | |
2206 | if (this->issued_non_pic_error_) | |
2207 | return; | |
33aea2fd | 2208 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
2209 | object->error(_("requires unsupported dynamic reloc; " |
2210 | "recompile with -fPIC")); | |
2211 | this->issued_non_pic_error_ = true; | |
2212 | return; | |
2213 | } | |
2214 | ||
8c2bf391 DM |
2215 | // Return whether we need to make a PLT entry for a relocation of the |
2216 | // given type against a STT_GNU_IFUNC symbol. | |
2217 | ||
2218 | template<int size, bool big_endian> | |
2219 | bool | |
2220 | Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( | |
2221 | Sized_relobj_file<size, big_endian>* object, | |
2222 | unsigned int r_type) | |
2223 | { | |
2224 | int flags = Scan::get_reference_flags(r_type); | |
2225 | if (flags & Symbol::TLS_REF) | |
2226 | gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), | |
2e702c99 | 2227 | object->name().c_str(), r_type); |
8c2bf391 DM |
2228 | return flags != 0; |
2229 | } | |
2230 | ||
f5314dd5 DM |
2231 | // Scan a relocation for a local symbol. |
2232 | ||
2233 | template<int size, bool big_endian> | |
2234 | inline void | |
2235 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
2236 | Symbol_table* symtab, |
2237 | Layout* layout, | |
2238 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2239 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2240 | unsigned int data_shndx, |
2241 | Output_section* output_section, | |
2242 | const elfcpp::Rela<size, big_endian>& reloc, | |
2243 | unsigned int r_type, | |
bfdfa4cd AM |
2244 | const elfcpp::Sym<size, big_endian>& lsym, |
2245 | bool is_discarded) | |
f5314dd5 | 2246 | { |
bfdfa4cd AM |
2247 | if (is_discarded) |
2248 | return; | |
2249 | ||
8c2bf391 | 2250 | bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2251 | unsigned int orig_r_type = r_type; |
f5314dd5 | 2252 | r_type &= 0xff; |
8c2bf391 DM |
2253 | |
2254 | if (is_ifunc | |
2255 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2256 | { | |
2257 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2258 | target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); | |
2259 | } | |
2260 | ||
f5314dd5 DM |
2261 | switch (r_type) |
2262 | { | |
2263 | case elfcpp::R_SPARC_NONE: | |
2264 | case elfcpp::R_SPARC_REGISTER: | |
2265 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2266 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2267 | break; | |
2268 | ||
2269 | case elfcpp::R_SPARC_64: | |
2270 | case elfcpp::R_SPARC_32: | |
2271 | // If building a shared library (or a position-independent | |
2272 | // executable), we need to create a dynamic relocation for | |
2273 | // this location. The relocation applied at link time will | |
2274 | // apply the link-time value, so we flag the location with | |
2275 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
2276 | // relocate it easily. | |
2277 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2278 | { |
2279 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2280 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2281 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2282 | output_section, data_shndx, |
2283 | reloc.get_r_offset(), | |
8c2bf391 | 2284 | reloc.get_r_addend(), is_ifunc); |
2e702c99 | 2285 | } |
f5314dd5 DM |
2286 | break; |
2287 | ||
2288 | case elfcpp::R_SPARC_HIX22: | |
2289 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2290 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2291 | case elfcpp::R_SPARC_H44: |
2292 | case elfcpp::R_SPARC_M44: | |
2293 | case elfcpp::R_SPARC_L44: | |
2294 | case elfcpp::R_SPARC_HH22: | |
2295 | case elfcpp::R_SPARC_HM10: | |
2296 | case elfcpp::R_SPARC_LM22: | |
2297 | case elfcpp::R_SPARC_UA64: | |
2298 | case elfcpp::R_SPARC_UA32: | |
2299 | case elfcpp::R_SPARC_UA16: | |
2300 | case elfcpp::R_SPARC_HI22: | |
2301 | case elfcpp::R_SPARC_LO10: | |
2302 | case elfcpp::R_SPARC_OLO10: | |
2303 | case elfcpp::R_SPARC_16: | |
2304 | case elfcpp::R_SPARC_11: | |
2305 | case elfcpp::R_SPARC_10: | |
2306 | case elfcpp::R_SPARC_8: | |
2307 | case elfcpp::R_SPARC_7: | |
2308 | case elfcpp::R_SPARC_6: | |
2309 | case elfcpp::R_SPARC_5: | |
2310 | // If building a shared library (or a position-independent | |
2311 | // executable), we need to create a dynamic relocation for | |
2312 | // this location. | |
2313 | if (parameters->options().output_is_position_independent()) | |
2e702c99 RM |
2314 | { |
2315 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2316 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
32b769e1 DM |
2317 | |
2318 | check_non_pic(object, r_type); | |
2e702c99 RM |
2319 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
2320 | { | |
2321 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, | |
f5314dd5 DM |
2322 | data_shndx, reloc.get_r_offset(), |
2323 | reloc.get_r_addend()); | |
2e702c99 RM |
2324 | } |
2325 | else | |
2326 | { | |
2327 | gold_assert(lsym.get_st_value() == 0); | |
0da6fa6c DM |
2328 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
2329 | output_section, data_shndx, | |
2330 | reloc.get_r_offset(), | |
2331 | reloc.get_r_addend()); | |
2e702c99 RM |
2332 | } |
2333 | } | |
f5314dd5 DM |
2334 | break; |
2335 | ||
2336 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 2337 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
2338 | case elfcpp::R_SPARC_WDISP22: |
2339 | case elfcpp::R_SPARC_WDISP19: | |
2340 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2341 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2342 | case elfcpp::R_SPARC_DISP8: |
2343 | case elfcpp::R_SPARC_DISP16: | |
2344 | case elfcpp::R_SPARC_DISP32: | |
2345 | case elfcpp::R_SPARC_DISP64: | |
2346 | case elfcpp::R_SPARC_PC10: | |
2347 | case elfcpp::R_SPARC_PC22: | |
2348 | break; | |
2349 | ||
024c4466 DM |
2350 | case elfcpp::R_SPARC_GOTDATA_OP: |
2351 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2352 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
2353 | // We will optimize this into a GOT relative relocation |
2354 | // and code transform the GOT load into an addition. | |
2355 | break; | |
2356 | ||
f5314dd5 DM |
2357 | case elfcpp::R_SPARC_GOT10: |
2358 | case elfcpp::R_SPARC_GOT13: | |
2359 | case elfcpp::R_SPARC_GOT22: | |
2360 | { | |
2e702c99 RM |
2361 | // The symbol requires a GOT entry. |
2362 | Output_data_got<size, big_endian>* got; | |
2363 | unsigned int r_sym; | |
f5314dd5 DM |
2364 | |
2365 | got = target->got_section(symtab, layout); | |
2366 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2367 | ||
2368 | // If we are generating a shared object, we need to add a | |
2369 | // dynamic relocation for this symbol's GOT entry. | |
2370 | if (parameters->options().output_is_position_independent()) | |
2371 | { | |
2372 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
2373 | { | |
2374 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
8c2bf391 | 2375 | unsigned int off = got->add_constant(0); |
f5314dd5 DM |
2376 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); |
2377 | rela_dyn->add_local_relative(object, r_sym, | |
2378 | elfcpp::R_SPARC_RELATIVE, | |
8c2bf391 | 2379 | got, off, 0, is_ifunc); |
f5314dd5 DM |
2380 | } |
2381 | } | |
2382 | else | |
2383 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
2384 | } | |
2385 | break; | |
2386 | ||
2387 | // These are initial TLS relocs, which are expected when | |
2388 | // linking. | |
2389 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2390 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2391 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2392 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2393 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2394 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2395 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2396 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2397 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2398 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2399 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2400 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2401 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2402 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2403 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2404 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2405 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
2406 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2407 | { | |
2408 | bool output_is_shared = parameters->options().shared(); | |
2409 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2410 | = optimize_tls_reloc(!output_is_shared, r_type); |
f5314dd5 DM |
2411 | switch (r_type) |
2412 | { | |
2413 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2414 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2415 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2416 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2417 | if (optimized_type == tls::TLSOPT_NONE) | |
2418 | { | |
2e702c99 RM |
2419 | // Create a pair of GOT entries for the module index and |
2420 | // dtv-relative offset. | |
2421 | Output_data_got<size, big_endian>* got | |
2422 | = target->got_section(symtab, layout); | |
2423 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
2424 | unsigned int shndx = lsym.get_st_shndx(); |
2425 | bool is_ordinary; | |
2426 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
2427 | if (!is_ordinary) | |
2428 | object->error(_("local symbol %u has bad shndx %u"), | |
2429 | r_sym, shndx); | |
2430 | else | |
2e702c99 | 2431 | got->add_local_pair_with_rel(object, r_sym, |
83896202 ILT |
2432 | lsym.get_st_shndx(), |
2433 | GOT_TYPE_TLS_PAIR, | |
2434 | target->rela_dyn_section(layout), | |
2435 | (size == 64 | |
2436 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
bd73a62d | 2437 | : elfcpp::R_SPARC_TLS_DTPMOD32)); |
f5314dd5 DM |
2438 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
2439 | generate_tls_call(symtab, layout, target); | |
2440 | } | |
2441 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2442 | unsupported_reloc_local(object, r_type); | |
2443 | break; | |
2444 | ||
2445 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2446 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2447 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2448 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2449 | if (optimized_type == tls::TLSOPT_NONE) | |
2450 | { | |
2451 | // Create a GOT entry for the module index. | |
2452 | target->got_mod_index_entry(symtab, layout, object); | |
2453 | ||
2454 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2455 | generate_tls_call(symtab, layout, target); | |
2456 | } | |
2457 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2458 | unsupported_reloc_local(object, r_type); | |
2459 | break; | |
2460 | ||
2461 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2462 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2463 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2464 | break; | |
2465 | ||
2466 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2467 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2468 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2469 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2470 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2471 | layout->set_has_static_tls(); |
2472 | if (optimized_type == tls::TLSOPT_NONE) | |
2473 | { | |
2474 | // Create a GOT entry for the tp-relative offset. | |
2475 | Output_data_got<size, big_endian>* got | |
2476 | = target->got_section(symtab, layout); | |
2477 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2478 | ||
2479 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
2480 | { | |
2481 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2482 | unsigned int off = got->add_constant(0); |
2483 | ||
2484 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 2485 | |
0da6fa6c DM |
2486 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
2487 | (size == 64 ? | |
2488 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2489 | elfcpp::R_SPARC_TLS_TPOFF32), | |
2490 | got, off, 0); | |
f5314dd5 DM |
2491 | } |
2492 | } | |
2493 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2494 | unsupported_reloc_local(object, r_type); | |
2495 | break; | |
2496 | ||
2497 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
2498 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2499 | layout->set_has_static_tls(); | |
2500 | if (output_is_shared) | |
2501 | { | |
2e702c99 RM |
2502 | // We need to create a dynamic relocation. |
2503 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
2504 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2505 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2506 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, | |
0da6fa6c DM |
2507 | output_section, data_shndx, |
2508 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
2509 | } |
2510 | break; | |
2511 | } | |
2512 | } | |
2513 | break; | |
2514 | ||
2515 | // These are relocations which should only be seen by the | |
2516 | // dynamic linker, and should never be seen here. | |
2517 | case elfcpp::R_SPARC_COPY: | |
2518 | case elfcpp::R_SPARC_GLOB_DAT: | |
2519 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2520 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2521 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2522 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2523 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2524 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2525 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2526 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2527 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2528 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2529 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2530 | object->name().c_str(), r_type); | |
2531 | break; | |
2532 | ||
2533 | default: | |
2534 | unsupported_reloc_local(object, r_type); | |
2535 | break; | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | // Report an unsupported relocation against a global symbol. | |
2540 | ||
2541 | template<int size, bool big_endian> | |
2542 | void | |
2543 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
6fa2a40b | 2544 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2545 | unsigned int r_type, |
2546 | Symbol* gsym) | |
2547 | { | |
2548 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
2549 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
2550 | } | |
2551 | ||
2552 | // Scan a relocation for a global symbol. | |
2553 | ||
2554 | template<int size, bool big_endian> | |
2555 | inline void | |
2556 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2557 | Symbol_table* symtab, |
2558 | Layout* layout, | |
2559 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2560 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2561 | unsigned int data_shndx, |
2562 | Output_section* output_section, | |
2563 | const elfcpp::Rela<size, big_endian>& reloc, | |
2564 | unsigned int r_type, | |
2565 | Symbol* gsym) | |
2566 | { | |
2567 | unsigned int orig_r_type = r_type; | |
8c2bf391 | 2568 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2569 | |
9efe6174 ILT |
2570 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2571 | // section. We check here to avoid creating a dynamic reloc against | |
2572 | // _GLOBAL_OFFSET_TABLE_. | |
2573 | if (!target->has_got_section() | |
2574 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2575 | target->got_section(symtab, layout); | |
2576 | ||
f5314dd5 | 2577 | r_type &= 0xff; |
8c2bf391 DM |
2578 | |
2579 | // A STT_GNU_IFUNC symbol may require a PLT entry. | |
2580 | if (is_ifunc | |
2581 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2582 | target->make_plt_entry(symtab, layout, gsym); | |
2583 | ||
f5314dd5 DM |
2584 | switch (r_type) |
2585 | { | |
2586 | case elfcpp::R_SPARC_NONE: | |
2587 | case elfcpp::R_SPARC_REGISTER: | |
2588 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2589 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2590 | break; | |
2591 | ||
2592 | case elfcpp::R_SPARC_PLT64: | |
2593 | case elfcpp::R_SPARC_PLT32: | |
2594 | case elfcpp::R_SPARC_HIPLT22: | |
2595 | case elfcpp::R_SPARC_LOPLT10: | |
2596 | case elfcpp::R_SPARC_PCPLT32: | |
2597 | case elfcpp::R_SPARC_PCPLT22: | |
2598 | case elfcpp::R_SPARC_PCPLT10: | |
2599 | case elfcpp::R_SPARC_WPLT30: | |
2600 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2601 | // Otherwise we need a PLT entry. | |
2602 | if (gsym->final_value_is_known()) | |
2603 | break; | |
2604 | // If building a shared library, we can also skip the PLT entry | |
2605 | // if the symbol is defined in the output file and is protected | |
2606 | // or hidden. | |
2607 | if (gsym->is_defined() | |
2e702c99 RM |
2608 | && !gsym->is_from_dynobj() |
2609 | && !gsym->is_preemptible()) | |
f5314dd5 DM |
2610 | break; |
2611 | target->make_plt_entry(symtab, layout, gsym); | |
2612 | break; | |
2613 | ||
2614 | case elfcpp::R_SPARC_DISP8: | |
2615 | case elfcpp::R_SPARC_DISP16: | |
2616 | case elfcpp::R_SPARC_DISP32: | |
2617 | case elfcpp::R_SPARC_DISP64: | |
2618 | case elfcpp::R_SPARC_PC_HH22: | |
2619 | case elfcpp::R_SPARC_PC_HM10: | |
2620 | case elfcpp::R_SPARC_PC_LM22: | |
2621 | case elfcpp::R_SPARC_PC10: | |
2622 | case elfcpp::R_SPARC_PC22: | |
2623 | case elfcpp::R_SPARC_WDISP30: | |
2624 | case elfcpp::R_SPARC_WDISP22: | |
2625 | case elfcpp::R_SPARC_WDISP19: | |
2626 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2627 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2628 | { |
2629 | if (gsym->needs_plt_entry()) | |
2630 | target->make_plt_entry(symtab, layout, gsym); | |
2631 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2632 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2633 | { |
966d4097 | 2634 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2635 | { |
12c0daef | 2636 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2637 | data_shndx, output_section, gsym, |
2638 | reloc); | |
2639 | } | |
2640 | else | |
2641 | { | |
2642 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2643 | check_non_pic(object, r_type); |
f5314dd5 DM |
2644 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2645 | data_shndx, reloc.get_r_offset(), | |
2646 | reloc.get_r_addend()); | |
2647 | } | |
2648 | } | |
2649 | } | |
2650 | break; | |
2651 | ||
2652 | case elfcpp::R_SPARC_UA64: | |
2653 | case elfcpp::R_SPARC_64: | |
2654 | case elfcpp::R_SPARC_HIX22: | |
2655 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2656 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2657 | case elfcpp::R_SPARC_H44: |
2658 | case elfcpp::R_SPARC_M44: | |
2659 | case elfcpp::R_SPARC_L44: | |
2660 | case elfcpp::R_SPARC_HH22: | |
2661 | case elfcpp::R_SPARC_HM10: | |
2662 | case elfcpp::R_SPARC_LM22: | |
2663 | case elfcpp::R_SPARC_HI22: | |
2664 | case elfcpp::R_SPARC_LO10: | |
2665 | case elfcpp::R_SPARC_OLO10: | |
2666 | case elfcpp::R_SPARC_UA32: | |
2667 | case elfcpp::R_SPARC_32: | |
2668 | case elfcpp::R_SPARC_UA16: | |
2669 | case elfcpp::R_SPARC_16: | |
2670 | case elfcpp::R_SPARC_11: | |
2671 | case elfcpp::R_SPARC_10: | |
2672 | case elfcpp::R_SPARC_8: | |
2673 | case elfcpp::R_SPARC_7: | |
2674 | case elfcpp::R_SPARC_6: | |
2675 | case elfcpp::R_SPARC_5: | |
2676 | { | |
2e702c99 RM |
2677 | // Make a PLT entry if necessary. |
2678 | if (gsym->needs_plt_entry()) | |
2679 | { | |
2680 | target->make_plt_entry(symtab, layout, gsym); | |
2681 | // Since this is not a PC-relative relocation, we may be | |
2682 | // taking the address of a function. In that case we need to | |
2683 | // set the entry in the dynamic symbol table to the address of | |
2684 | // the PLT entry. | |
2685 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2686 | gsym->set_needs_dynsym_value(); | |
2687 | } | |
2688 | // Make a dynamic relocation if necessary. | |
2689 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) | |
2690 | { | |
0da6fa6c DM |
2691 | unsigned int r_off = reloc.get_r_offset(); |
2692 | ||
2693 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 2694 | // for dwarf2 cfi directives. |
0da6fa6c DM |
2695 | switch (r_type) |
2696 | { | |
2697 | case elfcpp::R_SPARC_16: | |
2698 | if (r_off & 0x1) | |
2699 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2700 | break; | |
2701 | case elfcpp::R_SPARC_32: | |
2702 | if (r_off & 0x3) | |
2703 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2704 | break; | |
2705 | case elfcpp::R_SPARC_64: | |
2706 | if (r_off & 0x7) | |
2707 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2708 | break; | |
2709 | case elfcpp::R_SPARC_UA16: | |
2710 | if (!(r_off & 0x1)) | |
2711 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2712 | break; | |
2713 | case elfcpp::R_SPARC_UA32: | |
2714 | if (!(r_off & 0x3)) | |
2715 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2716 | break; | |
2717 | case elfcpp::R_SPARC_UA64: | |
2718 | if (!(r_off & 0x7)) | |
2719 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2720 | break; | |
2721 | } | |
2722 | ||
2e702c99 RM |
2723 | if (gsym->may_need_copy_reloc()) |
2724 | { | |
2725 | target->copy_reloc(symtab, layout, object, | |
2726 | data_shndx, output_section, gsym, reloc); | |
2727 | } | |
8c2bf391 DM |
2728 | else if (((size == 64 && r_type == elfcpp::R_SPARC_64) |
2729 | || (size == 32 && r_type == elfcpp::R_SPARC_32)) | |
2730 | && gsym->type() == elfcpp::STT_GNU_IFUNC | |
2731 | && gsym->can_use_relative_reloc(false) | |
2732 | && !gsym->is_from_dynobj() | |
2733 | && !gsym->is_undefined() | |
2734 | && !gsym->is_preemptible()) | |
2735 | { | |
2736 | // Use an IRELATIVE reloc for a locally defined | |
2737 | // STT_GNU_IFUNC symbol. This makes a function | |
2738 | // address in a PIE executable match the address in a | |
2739 | // shared library that it links against. | |
2740 | Reloc_section* rela_dyn = | |
2741 | target->rela_ifunc_section(layout); | |
2742 | unsigned int r_type = elfcpp::R_SPARC_IRELATIVE; | |
2743 | rela_dyn->add_symbolless_global_addend(gsym, r_type, | |
2744 | output_section, object, | |
2745 | data_shndx, | |
2746 | reloc.get_r_offset(), | |
2747 | reloc.get_r_addend()); | |
2748 | } | |
2e702c99 | 2749 | else if ((r_type == elfcpp::R_SPARC_32 |
f5314dd5 | 2750 | || r_type == elfcpp::R_SPARC_64) |
2e702c99 RM |
2751 | && gsym->can_use_relative_reloc(false)) |
2752 | { | |
2753 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2754 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
f5314dd5 DM |
2755 | output_section, object, |
2756 | data_shndx, reloc.get_r_offset(), | |
8c2bf391 | 2757 | reloc.get_r_addend(), is_ifunc); |
2e702c99 RM |
2758 | } |
2759 | else | |
2760 | { | |
2761 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
f5314dd5 | 2762 | |
32b769e1 | 2763 | check_non_pic(object, r_type); |
0da6fa6c DM |
2764 | if (gsym->is_from_dynobj() |
2765 | || gsym->is_undefined() | |
2766 | || gsym->is_preemptible()) | |
2767 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2768 | object, data_shndx, | |
2769 | reloc.get_r_offset(), | |
2770 | reloc.get_r_addend()); | |
2771 | else | |
2772 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2773 | output_section, | |
2774 | object, data_shndx, | |
2775 | reloc.get_r_offset(), | |
2776 | reloc.get_r_addend()); | |
2e702c99 RM |
2777 | } |
2778 | } | |
f5314dd5 DM |
2779 | } |
2780 | break; | |
2781 | ||
024c4466 DM |
2782 | case elfcpp::R_SPARC_GOTDATA_OP: |
2783 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2784 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 | 2785 | if (gsym->is_defined() |
2e702c99 RM |
2786 | && !gsym->is_from_dynobj() |
2787 | && !gsym->is_preemptible() | |
2a1079e8 DM |
2788 | && !is_ifunc) |
2789 | { | |
2790 | // We will optimize this into a GOT relative relocation | |
2791 | // and code transform the GOT load into an addition. | |
2792 | break; | |
2793 | } | |
f5314dd5 DM |
2794 | case elfcpp::R_SPARC_GOT10: |
2795 | case elfcpp::R_SPARC_GOT13: | |
2796 | case elfcpp::R_SPARC_GOT22: | |
2797 | { | |
2e702c99 RM |
2798 | // The symbol requires a GOT entry. |
2799 | Output_data_got<size, big_endian>* got; | |
f5314dd5 DM |
2800 | |
2801 | got = target->got_section(symtab, layout); | |
2e702c99 | 2802 | if (gsym->final_value_is_known()) |
8c2bf391 DM |
2803 | { |
2804 | // For a STT_GNU_IFUNC symbol we want the PLT address. | |
2805 | if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
2806 | got->add_global_plt(gsym, GOT_TYPE_STANDARD); | |
2807 | else | |
2808 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2809 | } | |
2e702c99 RM |
2810 | else |
2811 | { | |
2812 | // If this symbol is not fully resolved, we need to add a | |
2813 | // GOT entry with a dynamic relocation. | |
8c2bf391 DM |
2814 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
2815 | ||
2816 | // Use a GLOB_DAT rather than a RELATIVE reloc if: | |
2817 | // | |
2818 | // 1) The symbol may be defined in some other module. | |
2819 | // | |
2820 | // 2) We are building a shared library and this is a | |
2821 | // protected symbol; using GLOB_DAT means that the dynamic | |
2822 | // linker can use the address of the PLT in the main | |
2823 | // executable when appropriate so that function address | |
2824 | // comparisons work. | |
2825 | // | |
2826 | // 3) This is a STT_GNU_IFUNC symbol in position dependent | |
2827 | // code, again so that function address comparisons work. | |
2e702c99 RM |
2828 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
2829 | if (gsym->is_from_dynobj() | |
2830 | || gsym->is_undefined() | |
2831 | || gsym->is_preemptible() | |
8c2bf391 DM |
2832 | || (gsym->visibility() == elfcpp::STV_PROTECTED |
2833 | && parameters->options().shared()) | |
2834 | || (gsym->type() == elfcpp::STT_GNU_IFUNC | |
2835 | && parameters->options().output_is_position_independent() | |
2836 | && !gsym->is_forced_local())) | |
2837 | { | |
2838 | unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT; | |
2839 | ||
2840 | // If this symbol is forced local, this relocation will | |
2841 | // not work properly. That's because ld.so on sparc | |
2842 | // (and 32-bit powerpc) expects st_value in the r_addend | |
2843 | // of relocations for STB_LOCAL symbols. Curiously the | |
2844 | // BFD linker does not promote global hidden symbols to be | |
2845 | // STB_LOCAL in the dynamic symbol table like Gold does. | |
2846 | gold_assert(!gsym->is_forced_local()); | |
2847 | got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2848 | r_type); | |
2849 | } | |
2e702c99 RM |
2850 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) |
2851 | { | |
f5314dd5 DM |
2852 | unsigned int off = got->add_constant(0); |
2853 | ||
2854 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
8c2bf391 DM |
2855 | if (is_ifunc) |
2856 | { | |
2857 | // Tell the dynamic linker to use the PLT address | |
2858 | // when resolving relocations. | |
2859 | if (gsym->is_from_dynobj() | |
2860 | && !parameters->options().shared()) | |
2861 | gsym->set_needs_dynsym_value(); | |
2862 | } | |
f5314dd5 | 2863 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, |
8c2bf391 | 2864 | got, off, 0, is_ifunc); |
f5314dd5 | 2865 | } |
2e702c99 | 2866 | } |
f5314dd5 DM |
2867 | } |
2868 | break; | |
2869 | ||
2870 | // These are initial tls relocs, which are expected when | |
2871 | // linking. | |
2872 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2873 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2874 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2875 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2876 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2877 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2878 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2879 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2880 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2881 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2882 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2883 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2884 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2885 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2886 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2887 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2888 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2889 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2890 | { |
2891 | const bool is_final = gsym->final_value_is_known(); | |
2892 | const tls::Tls_optimization optimized_type | |
2e702c99 | 2893 | = optimize_tls_reloc(is_final, r_type); |
f5314dd5 DM |
2894 | switch (r_type) |
2895 | { | |
2896 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2897 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2898 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2899 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2900 | if (optimized_type == tls::TLSOPT_NONE) | |
2901 | { | |
2e702c99 RM |
2902 | // Create a pair of GOT entries for the module index and |
2903 | // dtv-relative offset. | |
2904 | Output_data_got<size, big_endian>* got | |
2905 | = target->got_section(symtab, layout); | |
2906 | got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, | |
83896202 ILT |
2907 | target->rela_dyn_section(layout), |
2908 | (size == 64 | |
2909 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2910 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2911 | (size == 64 | |
2912 | ? elfcpp::R_SPARC_TLS_DTPOFF64 | |
2913 | : elfcpp::R_SPARC_TLS_DTPOFF32)); | |
f5314dd5 DM |
2914 | |
2915 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2916 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2917 | generate_tls_call(symtab, layout, target); | |
2918 | } | |
2919 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2920 | { | |
2e702c99 RM |
2921 | // Create a GOT entry for the tp-relative offset. |
2922 | Output_data_got<size, big_endian>* got | |
2923 | = target->got_section(symtab, layout); | |
2924 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, | |
83896202 ILT |
2925 | target->rela_dyn_section(layout), |
2926 | (size == 64 ? | |
2927 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2928 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2929 | } |
2930 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2931 | unsupported_reloc_global(object, r_type, gsym); | |
2932 | break; | |
2933 | ||
2934 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2935 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2936 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2937 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2938 | if (optimized_type == tls::TLSOPT_NONE) | |
2939 | { | |
2940 | // Create a GOT entry for the module index. | |
2941 | target->got_mod_index_entry(symtab, layout, object); | |
2942 | ||
2943 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2944 | generate_tls_call(symtab, layout, target); | |
2945 | } | |
2946 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2947 | unsupported_reloc_global(object, r_type, gsym); | |
2948 | break; | |
2949 | ||
2950 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2951 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2952 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2953 | break; | |
2954 | ||
2955 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2956 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2957 | layout->set_has_static_tls(); | |
2958 | if (parameters->options().shared()) | |
2959 | { | |
2960 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2961 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2962 | output_section, object, | |
2963 | data_shndx, reloc.get_r_offset(), | |
2964 | 0); | |
f5314dd5 DM |
2965 | } |
2966 | break; | |
2967 | ||
2968 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2969 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2970 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2971 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2972 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2973 | layout->set_has_static_tls(); |
2974 | if (optimized_type == tls::TLSOPT_NONE) | |
2975 | { | |
2976 | // Create a GOT entry for the tp-relative offset. | |
2977 | Output_data_got<size, big_endian>* got | |
2978 | = target->got_section(symtab, layout); | |
83896202 ILT |
2979 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
2980 | target->rela_dyn_section(layout), | |
2981 | (size == 64 | |
2982 | ? elfcpp::R_SPARC_TLS_TPOFF64 | |
2983 | : elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2984 | } |
2985 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2986 | unsupported_reloc_global(object, r_type, gsym); | |
2987 | break; | |
2988 | } | |
2989 | } | |
2990 | break; | |
2991 | ||
2992 | // These are relocations which should only be seen by the | |
2993 | // dynamic linker, and should never be seen here. | |
2994 | case elfcpp::R_SPARC_COPY: | |
2995 | case elfcpp::R_SPARC_GLOB_DAT: | |
2996 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2997 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2998 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2999 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3000 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
3001 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3002 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3003 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3004 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3005 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3006 | gold_error(_("%s: unexpected reloc %u in object file"), | |
3007 | object->name().c_str(), r_type); | |
3008 | break; | |
3009 | ||
3010 | default: | |
3011 | unsupported_reloc_global(object, r_type, gsym); | |
3012 | break; | |
3013 | } | |
3014 | } | |
3015 | ||
6d03d481 ST |
3016 | // Process relocations for gc. |
3017 | ||
3018 | template<int size, bool big_endian> | |
3019 | void | |
3020 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
3021 | Symbol_table* symtab, |
3022 | Layout* layout, | |
6fa2a40b | 3023 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
3024 | unsigned int data_shndx, |
3025 | unsigned int, | |
3026 | const unsigned char* prelocs, | |
3027 | size_t reloc_count, | |
3028 | Output_section* output_section, | |
3029 | bool needs_special_offset_handling, | |
3030 | size_t local_symbol_count, | |
3031 | const unsigned char* plocal_symbols) | |
3032 | { | |
3033 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3034 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 3035 | |
41cbeecc | 3036 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 3037 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
3038 | symtab, |
3039 | layout, | |
3040 | this, | |
3041 | object, | |
3042 | data_shndx, | |
3043 | prelocs, | |
3044 | reloc_count, | |
3045 | output_section, | |
3046 | needs_special_offset_handling, | |
3047 | local_symbol_count, | |
3048 | plocal_symbols); | |
3049 | } | |
3050 | ||
f5314dd5 DM |
3051 | // Scan relocations for a section. |
3052 | ||
3053 | template<int size, bool big_endian> | |
3054 | void | |
3055 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
3056 | Symbol_table* symtab, |
3057 | Layout* layout, | |
6fa2a40b | 3058 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
3059 | unsigned int data_shndx, |
3060 | unsigned int sh_type, | |
3061 | const unsigned char* prelocs, | |
3062 | size_t reloc_count, | |
3063 | Output_section* output_section, | |
3064 | bool needs_special_offset_handling, | |
3065 | size_t local_symbol_count, | |
3066 | const unsigned char* plocal_symbols) | |
3067 | { | |
3068 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 3069 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
3070 | |
3071 | if (sh_type == elfcpp::SHT_REL) | |
3072 | { | |
3073 | gold_error(_("%s: unsupported REL reloc section"), | |
3074 | object->name().c_str()); | |
3075 | return; | |
3076 | } | |
3077 | ||
2ea97941 | 3078 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
3079 | symtab, |
3080 | layout, | |
3081 | this, | |
3082 | object, | |
3083 | data_shndx, | |
3084 | prelocs, | |
3085 | reloc_count, | |
3086 | output_section, | |
3087 | needs_special_offset_handling, | |
3088 | local_symbol_count, | |
3089 | plocal_symbols); | |
3090 | } | |
3091 | ||
3092 | // Finalize the sections. | |
3093 | ||
3094 | template<int size, bool big_endian> | |
3095 | void | |
d5b40221 DK |
3096 | Target_sparc<size, big_endian>::do_finalize_sections( |
3097 | Layout* layout, | |
f59f41f3 | 3098 | const Input_objects*, |
8c2bf391 | 3099 | Symbol_table* symtab) |
f5314dd5 | 3100 | { |
8c2bf391 DM |
3101 | if (this->plt_) |
3102 | this->plt_->emit_pending_ifunc_relocs(); | |
3103 | ||
f5314dd5 | 3104 | // Fill in some more dynamic tags. |
ea715a34 ILT |
3105 | const Reloc_section* rel_plt = (this->plt_ == NULL |
3106 | ? NULL | |
3107 | : this->plt_->rel_plt()); | |
3108 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 3109 | this->rela_dyn_, true, true); |
f5314dd5 DM |
3110 | |
3111 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
3112 | // relocs. | |
12c0daef ILT |
3113 | if (this->copy_relocs_.any_saved_relocs()) |
3114 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
8c2bf391 DM |
3115 | |
3116 | if (parameters->doing_static_link() | |
3117 | && (this->plt_ == NULL || !this->plt_->has_ifunc_section())) | |
3118 | { | |
3119 | // If linking statically, make sure that the __rela_iplt symbols | |
3120 | // were defined if necessary, even if we didn't create a PLT. | |
3121 | static const Define_symbol_in_segment syms[] = | |
3122 | { | |
3123 | { | |
3124 | "__rela_iplt_start", // name | |
3125 | elfcpp::PT_LOAD, // segment_type | |
3126 | elfcpp::PF_W, // segment_flags_set | |
3127 | elfcpp::PF(0), // segment_flags_clear | |
3128 | 0, // value | |
3129 | 0, // size | |
3130 | elfcpp::STT_NOTYPE, // type | |
3131 | elfcpp::STB_GLOBAL, // binding | |
3132 | elfcpp::STV_HIDDEN, // visibility | |
3133 | 0, // nonvis | |
3134 | Symbol::SEGMENT_START, // offset_from_base | |
3135 | true // only_if_ref | |
3136 | }, | |
3137 | { | |
3138 | "__rela_iplt_end", // name | |
3139 | elfcpp::PT_LOAD, // segment_type | |
3140 | elfcpp::PF_W, // segment_flags_set | |
3141 | elfcpp::PF(0), // segment_flags_clear | |
3142 | 0, // value | |
3143 | 0, // size | |
3144 | elfcpp::STT_NOTYPE, // type | |
3145 | elfcpp::STB_GLOBAL, // binding | |
3146 | elfcpp::STV_HIDDEN, // visibility | |
3147 | 0, // nonvis | |
3148 | Symbol::SEGMENT_START, // offset_from_base | |
3149 | true // only_if_ref | |
3150 | } | |
3151 | }; | |
3152 | ||
3153 | symtab->define_symbols(layout, 2, syms, | |
3154 | layout->script_options()->saw_sections_clause()); | |
3155 | } | |
f5314dd5 DM |
3156 | } |
3157 | ||
3158 | // Perform a relocation. | |
3159 | ||
3160 | template<int size, bool big_endian> | |
3161 | inline bool | |
3162 | Target_sparc<size, big_endian>::Relocate::relocate( | |
3163 | const Relocate_info<size, big_endian>* relinfo, | |
3164 | Target_sparc* target, | |
031cdbed | 3165 | Output_section*, |
f5314dd5 DM |
3166 | size_t relnum, |
3167 | const elfcpp::Rela<size, big_endian>& rela, | |
3168 | unsigned int r_type, | |
3169 | const Sized_symbol<size>* gsym, | |
3170 | const Symbol_value<size>* psymval, | |
3171 | unsigned char* view, | |
3172 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3173 | section_size_type view_size) | |
3174 | { | |
2a1079e8 | 3175 | bool orig_is_ifunc = psymval->is_ifunc_symbol(); |
f5314dd5 DM |
3176 | r_type &= 0xff; |
3177 | ||
3178 | if (this->ignore_gd_add_) | |
3179 | { | |
3180 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
3181 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3182 | _("missing expected TLS relocation")); | |
3183 | else | |
3184 | { | |
3185 | this->ignore_gd_add_ = false; | |
3186 | return false; | |
3187 | } | |
3188 | } | |
abd242a9 DM |
3189 | if (this->reloc_adjust_addr_ == view) |
3190 | view -= 4; | |
f5314dd5 DM |
3191 | |
3192 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
8c2bf391 | 3193 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3194 | |
3195 | // Pick the value to use for symbols defined in shared objects. | |
3196 | Symbol_value<size> symval; | |
3197 | if (gsym != NULL | |
95a2c8d6 | 3198 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
f5314dd5 | 3199 | { |
2ea97941 | 3200 | elfcpp::Elf_Xword value; |
f5314dd5 | 3201 | |
8c2bf391 | 3202 | value = target->plt_address_for_global(gsym) + gsym->plt_offset(); |
f5314dd5 | 3203 | |
2ea97941 | 3204 | symval.set_output_value(value); |
f5314dd5 DM |
3205 | |
3206 | psymval = &symval; | |
3207 | } | |
2a1079e8 | 3208 | else if (gsym == NULL && orig_is_ifunc) |
8c2bf391 DM |
3209 | { |
3210 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3211 | if (object->local_has_plt_offset(r_sym)) | |
3212 | { | |
3213 | symval.set_output_value(target->plt_address_for_local(object, r_sym) | |
3214 | + object->local_plt_offset(r_sym)); | |
3215 | psymval = &symval; | |
3216 | } | |
3217 | } | |
f5314dd5 | 3218 | |
f5314dd5 DM |
3219 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); |
3220 | ||
3221 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
3222 | // pointer points to the beginning, not the end, of the table. | |
3223 | // So we just use the plain offset. | |
f5314dd5 | 3224 | unsigned int got_offset = 0; |
2a1079e8 | 3225 | bool gdop_valid = false; |
f5314dd5 DM |
3226 | switch (r_type) |
3227 | { | |
024c4466 DM |
3228 | case elfcpp::R_SPARC_GOTDATA_OP: |
3229 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
3230 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3231 | // If this is local, we did not create a GOT entry because we |
3232 | // intend to transform this into a GOT relative relocation. | |
3233 | if (gsym == NULL | |
3234 | || (gsym->is_defined() | |
3235 | && !gsym->is_from_dynobj() | |
3236 | && !gsym->is_preemptible() | |
3237 | && !orig_is_ifunc)) | |
3238 | { | |
3239 | got_offset = psymval->value(object, 0) - target->got_address(); | |
3240 | gdop_valid = true; | |
3241 | break; | |
3242 | } | |
f5314dd5 DM |
3243 | case elfcpp::R_SPARC_GOT10: |
3244 | case elfcpp::R_SPARC_GOT13: | |
3245 | case elfcpp::R_SPARC_GOT22: | |
3246 | if (gsym != NULL) | |
2e702c99 RM |
3247 | { |
3248 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
3249 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
3250 | } | |
f5314dd5 | 3251 | else |
2e702c99 RM |
3252 | { |
3253 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3254 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
3255 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
3256 | } | |
f5314dd5 DM |
3257 | break; |
3258 | ||
3259 | default: | |
3260 | break; | |
3261 | } | |
3262 | ||
3263 | switch (r_type) | |
3264 | { | |
3265 | case elfcpp::R_SPARC_NONE: | |
3266 | case elfcpp::R_SPARC_REGISTER: | |
3267 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
3268 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
3269 | break; | |
3270 | ||
3271 | case elfcpp::R_SPARC_8: | |
3272 | Relocate_functions<size, big_endian>::rela8(view, object, | |
3273 | psymval, addend); | |
3274 | break; | |
3275 | ||
3276 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
3277 | if (rela.get_r_offset() & 0x1) |
3278 | { | |
3279 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3280 | // for dwarf2 cfi directives. |
705b5121 DM |
3281 | Reloc::ua16(view, object, psymval, addend); |
3282 | } | |
3283 | else | |
3284 | Relocate_functions<size, big_endian>::rela16(view, object, | |
3285 | psymval, addend); | |
f5314dd5 DM |
3286 | break; |
3287 | ||
3288 | case elfcpp::R_SPARC_32: | |
3289 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3290 | { |
3291 | if (rela.get_r_offset() & 0x3) | |
3292 | { | |
3293 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3294 | // for dwarf2 cfi directives. |
705b5121 DM |
3295 | Reloc::ua32(view, object, psymval, addend); |
3296 | } | |
3297 | else | |
3298 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3299 | psymval, addend); | |
3300 | } | |
f5314dd5 DM |
3301 | break; |
3302 | ||
3303 | case elfcpp::R_SPARC_DISP8: | |
3304 | Reloc::disp8(view, object, psymval, addend, address); | |
3305 | break; | |
3306 | ||
3307 | case elfcpp::R_SPARC_DISP16: | |
3308 | Reloc::disp16(view, object, psymval, addend, address); | |
3309 | break; | |
3310 | ||
3311 | case elfcpp::R_SPARC_DISP32: | |
3312 | Reloc::disp32(view, object, psymval, addend, address); | |
3313 | break; | |
3314 | ||
3315 | case elfcpp::R_SPARC_DISP64: | |
3316 | Reloc::disp64(view, object, psymval, addend, address); | |
3317 | break; | |
3318 | ||
3319 | case elfcpp::R_SPARC_WDISP30: | |
3320 | case elfcpp::R_SPARC_WPLT30: | |
3321 | Reloc::wdisp30(view, object, psymval, addend, address); | |
a5a5f7a3 DM |
3322 | if (target->may_relax()) |
3323 | relax_call(target, view, rela, view_size); | |
f5314dd5 DM |
3324 | break; |
3325 | ||
3326 | case elfcpp::R_SPARC_WDISP22: | |
3327 | Reloc::wdisp22(view, object, psymval, addend, address); | |
3328 | break; | |
3329 | ||
3330 | case elfcpp::R_SPARC_WDISP19: | |
3331 | Reloc::wdisp19(view, object, psymval, addend, address); | |
3332 | break; | |
3333 | ||
3334 | case elfcpp::R_SPARC_WDISP16: | |
3335 | Reloc::wdisp16(view, object, psymval, addend, address); | |
3336 | break; | |
3337 | ||
2615994e DM |
3338 | case elfcpp::R_SPARC_WDISP10: |
3339 | Reloc::wdisp10(view, object, psymval, addend, address); | |
3340 | break; | |
3341 | ||
f5314dd5 DM |
3342 | case elfcpp::R_SPARC_HI22: |
3343 | Reloc::hi22(view, object, psymval, addend); | |
3344 | break; | |
3345 | ||
3346 | case elfcpp::R_SPARC_22: | |
3347 | Reloc::rela32_22(view, object, psymval, addend); | |
3348 | break; | |
3349 | ||
3350 | case elfcpp::R_SPARC_13: | |
3351 | Reloc::rela32_13(view, object, psymval, addend); | |
3352 | break; | |
3353 | ||
3354 | case elfcpp::R_SPARC_LO10: | |
3355 | Reloc::lo10(view, object, psymval, addend); | |
3356 | break; | |
3357 | ||
3358 | case elfcpp::R_SPARC_GOT10: | |
3359 | Reloc::lo10(view, got_offset, addend); | |
3360 | break; | |
3361 | ||
024c4466 | 3362 | case elfcpp::R_SPARC_GOTDATA_OP: |
2a1079e8 DM |
3363 | if (gdop_valid) |
3364 | { | |
3365 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3366 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3367 | Insntype val; | |
3368 | ||
3369 | // {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd | |
3370 | val = elfcpp::Swap<32, true>::readval(wv); | |
3371 | val = 0x80000000 | (val & 0x3e07c01f); | |
3372 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3373 | } | |
024c4466 DM |
3374 | break; |
3375 | ||
3376 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
2a1079e8 DM |
3377 | if (gdop_valid) |
3378 | { | |
3379 | Reloc::gdop_lox10(view, got_offset, addend); | |
3380 | break; | |
3381 | } | |
3382 | /* Fall through. */ | |
f5314dd5 DM |
3383 | case elfcpp::R_SPARC_GOT13: |
3384 | Reloc::rela32_13(view, got_offset, addend); | |
3385 | break; | |
3386 | ||
024c4466 | 3387 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
2a1079e8 DM |
3388 | if (gdop_valid) |
3389 | { | |
3390 | Reloc::gdop_hix22(view, got_offset, addend); | |
3391 | break; | |
3392 | } | |
3393 | /* Fall through. */ | |
f5314dd5 DM |
3394 | case elfcpp::R_SPARC_GOT22: |
3395 | Reloc::hi22(view, got_offset, addend); | |
3396 | break; | |
3397 | ||
3398 | case elfcpp::R_SPARC_PC10: | |
3399 | Reloc::pc10(view, object, psymval, addend, address); | |
3400 | break; | |
3401 | ||
3402 | case elfcpp::R_SPARC_PC22: | |
3403 | Reloc::pc22(view, object, psymval, addend, address); | |
3404 | break; | |
3405 | ||
3406 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3407 | case elfcpp::R_SPARC_UA32: | |
3408 | Reloc::ua32(view, object, psymval, addend); | |
3409 | break; | |
3410 | ||
3411 | case elfcpp::R_SPARC_PLT64: | |
3412 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3413 | psymval, addend); | |
3414 | break; | |
3415 | ||
3416 | case elfcpp::R_SPARC_PLT32: | |
3417 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3418 | psymval, addend); | |
3419 | break; | |
3420 | ||
3421 | case elfcpp::R_SPARC_HIPLT22: | |
3422 | Reloc::hi22(view, object, psymval, addend); | |
3423 | break; | |
3424 | ||
3425 | case elfcpp::R_SPARC_LOPLT10: | |
3426 | Reloc::lo10(view, object, psymval, addend); | |
3427 | break; | |
3428 | ||
3429 | case elfcpp::R_SPARC_PCPLT32: | |
3430 | Reloc::disp32(view, object, psymval, addend, address); | |
3431 | break; | |
3432 | ||
3433 | case elfcpp::R_SPARC_PCPLT22: | |
3434 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3435 | break; | |
3436 | ||
3437 | case elfcpp::R_SPARC_PCPLT10: | |
3438 | Reloc::lo10(view, object, psymval, addend, address); | |
3439 | break; | |
3440 | ||
3441 | case elfcpp::R_SPARC_64: | |
3442 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3443 | { |
3444 | if (rela.get_r_offset() & 0x7) | |
3445 | { | |
3446 | // The assembler can sometimes emit unaligned relocations | |
2e702c99 | 3447 | // for dwarf2 cfi directives. |
705b5121 DM |
3448 | Reloc::ua64(view, object, psymval, addend); |
3449 | } | |
3450 | else | |
3451 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3452 | psymval, addend); | |
3453 | } | |
f5314dd5 DM |
3454 | break; |
3455 | ||
3456 | case elfcpp::R_SPARC_OLO10: | |
3457 | { | |
3458 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
3459 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
3460 | Reloc::olo10(view, object, psymval, addend, addend2); | |
3461 | } | |
3462 | break; | |
3463 | ||
3464 | case elfcpp::R_SPARC_HH22: | |
3465 | Reloc::hh22(view, object, psymval, addend); | |
3466 | break; | |
3467 | ||
3468 | case elfcpp::R_SPARC_PC_HH22: | |
3469 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
3470 | break; | |
3471 | ||
3472 | case elfcpp::R_SPARC_HM10: | |
3473 | Reloc::hm10(view, object, psymval, addend); | |
3474 | break; | |
3475 | ||
3476 | case elfcpp::R_SPARC_PC_HM10: | |
3477 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
3478 | break; | |
3479 | ||
3480 | case elfcpp::R_SPARC_LM22: | |
3481 | Reloc::hi22(view, object, psymval, addend); | |
3482 | break; | |
3483 | ||
3484 | case elfcpp::R_SPARC_PC_LM22: | |
3485 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3486 | break; | |
3487 | ||
3488 | case elfcpp::R_SPARC_11: | |
3489 | Reloc::rela32_11(view, object, psymval, addend); | |
3490 | break; | |
3491 | ||
3492 | case elfcpp::R_SPARC_10: | |
3493 | Reloc::rela32_10(view, object, psymval, addend); | |
3494 | break; | |
3495 | ||
3496 | case elfcpp::R_SPARC_7: | |
3497 | Reloc::rela32_7(view, object, psymval, addend); | |
3498 | break; | |
3499 | ||
3500 | case elfcpp::R_SPARC_6: | |
3501 | Reloc::rela32_6(view, object, psymval, addend); | |
3502 | break; | |
3503 | ||
3504 | case elfcpp::R_SPARC_5: | |
3505 | Reloc::rela32_5(view, object, psymval, addend); | |
3506 | break; | |
3507 | ||
3508 | case elfcpp::R_SPARC_HIX22: | |
3509 | Reloc::hix22(view, object, psymval, addend); | |
3510 | break; | |
3511 | ||
3512 | case elfcpp::R_SPARC_LOX10: | |
3513 | Reloc::lox10(view, object, psymval, addend); | |
3514 | break; | |
3515 | ||
2615994e DM |
3516 | case elfcpp::R_SPARC_H34: |
3517 | Reloc::h34(view, object, psymval, addend); | |
3518 | break; | |
3519 | ||
f5314dd5 DM |
3520 | case elfcpp::R_SPARC_H44: |
3521 | Reloc::h44(view, object, psymval, addend); | |
3522 | break; | |
3523 | ||
3524 | case elfcpp::R_SPARC_M44: | |
3525 | Reloc::m44(view, object, psymval, addend); | |
3526 | break; | |
3527 | ||
3528 | case elfcpp::R_SPARC_L44: | |
3529 | Reloc::l44(view, object, psymval, addend); | |
3530 | break; | |
3531 | ||
3532 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3533 | case elfcpp::R_SPARC_UA64: | |
3534 | Reloc::ua64(view, object, psymval, addend); | |
3535 | break; | |
3536 | ||
3537 | case elfcpp::R_SPARC_UA16: | |
3538 | Reloc::ua16(view, object, psymval, addend); | |
3539 | break; | |
3540 | ||
3541 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3542 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3543 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3544 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3545 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3546 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3547 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3548 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3549 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3550 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3551 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3552 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3553 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3554 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3555 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 3556 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
3557 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3558 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3559 | this->relocate_tls(relinfo, target, relnum, rela, | |
3560 | r_type, gsym, psymval, view, | |
3561 | address, view_size); | |
3562 | break; | |
3563 | ||
3564 | case elfcpp::R_SPARC_COPY: | |
3565 | case elfcpp::R_SPARC_GLOB_DAT: | |
3566 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 3567 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 3568 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 3569 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3570 | // These are outstanding tls relocs, which are unexpected when |
3571 | // linking. | |
3572 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
3573 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3574 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3575 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3576 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3577 | _("unexpected reloc %u in object file"), | |
3578 | r_type); | |
3579 | break; | |
3580 | ||
3581 | default: | |
3582 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3583 | _("unsupported reloc %u"), | |
3584 | r_type); | |
3585 | break; | |
3586 | } | |
3587 | ||
3588 | return true; | |
3589 | } | |
3590 | ||
3591 | // Perform a TLS relocation. | |
3592 | ||
3593 | template<int size, bool big_endian> | |
3594 | inline void | |
3595 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
3596 | const Relocate_info<size, big_endian>* relinfo, | |
3597 | Target_sparc<size, big_endian>* target, | |
3598 | size_t relnum, | |
3599 | const elfcpp::Rela<size, big_endian>& rela, | |
3600 | unsigned int r_type, | |
3601 | const Sized_symbol<size>* gsym, | |
3602 | const Symbol_value<size>* psymval, | |
3603 | unsigned char* view, | |
3604 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3605 | section_size_type) | |
3606 | { | |
3607 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
3608 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
6fa2a40b | 3609 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3610 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; |
3611 | ||
3612 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 3613 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
3614 | |
3615 | const bool is_final = | |
3616 | (gsym == NULL | |
3617 | ? !parameters->options().output_is_position_independent() | |
3618 | : gsym->final_value_is_known()); | |
3619 | const tls::Tls_optimization optimized_type | |
3620 | = optimize_tls_reloc(is_final, r_type); | |
3621 | ||
3622 | switch (r_type) | |
3623 | { | |
3624 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3625 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3626 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3627 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3628 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3629 | { | |
3630 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3631 | Insntype val; | |
3632 | ||
2ea97941 | 3633 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3634 | |
3635 | switch (r_type) | |
3636 | { | |
3637 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3638 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 3639 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3640 | break; |
3641 | ||
3642 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3643 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 3644 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3645 | break; |
3646 | ||
3647 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3648 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
3649 | val = elfcpp::Swap<32, true>::readval(wv); | |
3650 | val = (val & ~0x7c000) | 0x1c000; | |
3651 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3652 | break; | |
3653 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3654 | // call __tls_get_addr --> nop | |
3655 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3656 | break; | |
3657 | } | |
3658 | break; | |
3659 | } | |
3660 | else | |
2e702c99 RM |
3661 | { |
3662 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
3663 | ? GOT_TYPE_TLS_OFFSET | |
3664 | : GOT_TYPE_TLS_PAIR); | |
3665 | if (gsym != NULL) | |
3666 | { | |
3667 | gold_assert(gsym->has_got_offset(got_type)); | |
3668 | value = gsym->got_offset(got_type); | |
3669 | } | |
3670 | else | |
3671 | { | |
3672 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3673 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
3674 | value = object->local_got_offset(r_sym, got_type); | |
3675 | } | |
3676 | if (optimized_type == tls::TLSOPT_TO_IE) | |
f5314dd5 DM |
3677 | { |
3678 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3679 | Insntype val; | |
3680 | ||
3681 | switch (r_type) | |
3682 | { | |
3683 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3684 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 3685 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3686 | break; |
3687 | ||
3688 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3689 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 3690 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3691 | break; |
3692 | ||
3693 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3694 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
3695 | val = elfcpp::Swap<32, true>::readval(wv); | |
3696 | ||
3697 | if (size == 64) | |
3698 | val |= 0xc0580000; | |
3699 | else | |
3700 | val |= 0xc0000000; | |
3701 | ||
3702 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3703 | break; | |
3704 | ||
3705 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3706 | // The compiler can put the TLS_GD_ADD instruction | |
3707 | // into the delay slot of the call. If so, we need | |
3708 | // to transpose the two instructions so that the | |
9b547ce6 | 3709 | // new sequence works properly. |
f5314dd5 DM |
3710 | // |
3711 | // The test we use is if the instruction in the | |
3712 | // delay slot is an add with destination register | |
3713 | // equal to %o0 | |
3714 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
3715 | if ((val & 0x81f80000) == 0x80000000 | |
3716 | && ((val >> 25) & 0x1f) == 0x8) | |
3717 | { | |
3718 | if (size == 64) | |
3719 | val |= 0xc0580000; | |
3720 | else | |
3721 | val |= 0xc0000000; | |
3722 | ||
3723 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3724 | ||
3725 | wv += 1; | |
3726 | this->ignore_gd_add_ = true; | |
3727 | } | |
abd242a9 DM |
3728 | else |
3729 | { | |
3730 | // Even if the delay slot isn't the TLS_GD_ADD | |
3731 | // instruction, we still have to handle the case | |
3732 | // where it sets up %o0 in some other way. | |
3733 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3734 | wv += 1; | |
3735 | this->reloc_adjust_addr_ = view + 4; | |
3736 | } | |
f5314dd5 DM |
3737 | // call __tls_get_addr --> add %g7, %o0, %o0 |
3738 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3739 | break; | |
3740 | } | |
2e702c99 | 3741 | break; |
f5314dd5 | 3742 | } |
2e702c99 RM |
3743 | else if (optimized_type == tls::TLSOPT_NONE) |
3744 | { | |
f5314dd5 DM |
3745 | switch (r_type) |
3746 | { | |
3747 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3748 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3749 | break; |
3750 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3751 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3752 | break; |
3753 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3754 | break; | |
3755 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3756 | { | |
3757 | Symbol_value<size> symval; | |
2ea97941 | 3758 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3759 | Symbol* tsym; |
3760 | ||
3761 | tsym = target->tls_get_addr_sym_; | |
3762 | gold_assert(tsym); | |
2ea97941 ILT |
3763 | value = (target->plt_section()->address() + |
3764 | tsym->plt_offset()); | |
3765 | symval.set_output_value(value); | |
f5314dd5 DM |
3766 | Reloc::wdisp30(view, object, &symval, addend, address); |
3767 | } | |
3768 | break; | |
3769 | } | |
3770 | break; | |
2e702c99 RM |
3771 | } |
3772 | } | |
f5314dd5 DM |
3773 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3774 | _("unsupported reloc %u"), | |
3775 | r_type); | |
3776 | break; | |
3777 | ||
3778 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3779 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3780 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3781 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3782 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3783 | { | |
3784 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3785 | ||
3786 | switch (r_type) | |
3787 | { | |
3788 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3789 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3790 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3791 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3792 | break; | |
3793 | ||
3794 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3795 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3796 | break; | |
3797 | } | |
3798 | break; | |
3799 | } | |
3800 | else if (optimized_type == tls::TLSOPT_NONE) | |
2e702c99 RM |
3801 | { |
3802 | // Relocate the field with the offset of the GOT entry for | |
3803 | // the module index. | |
3804 | unsigned int got_offset; | |
f5314dd5 DM |
3805 | |
3806 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3807 | switch (r_type) | |
3808 | { | |
3809 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3810 | Reloc::hi22(view, got_offset, addend); | |
3811 | break; | |
3812 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3813 | Reloc::lo10(view, got_offset, addend); | |
3814 | break; | |
3815 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3816 | break; | |
3817 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3818 | { | |
3819 | Symbol_value<size> symval; | |
2ea97941 | 3820 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3821 | Symbol* tsym; |
3822 | ||
3823 | tsym = target->tls_get_addr_sym_; | |
3824 | gold_assert(tsym); | |
2ea97941 ILT |
3825 | value = (target->plt_section()->address() + |
3826 | tsym->plt_offset()); | |
3827 | symval.set_output_value(value); | |
f5314dd5 DM |
3828 | Reloc::wdisp30(view, object, &symval, addend, address); |
3829 | } | |
3830 | break; | |
3831 | } | |
2e702c99 RM |
3832 | break; |
3833 | } | |
f5314dd5 DM |
3834 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
3835 | _("unsupported reloc %u"), | |
3836 | r_type); | |
3837 | break; | |
3838 | ||
3839 | // These relocs can appear in debugging sections, in which case | |
3840 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3841 | // field tells us this. | |
3842 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3843 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3844 | { | |
2ea97941 ILT |
3845 | value -= tls_segment->memsz(); |
3846 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3847 | } |
3848 | else | |
2ea97941 | 3849 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3850 | break; |
3851 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3852 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3853 | { | |
2ea97941 ILT |
3854 | value -= tls_segment->memsz(); |
3855 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3856 | } |
3857 | else | |
2ea97941 | 3858 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3859 | break; |
3860 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3861 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3862 | { | |
3863 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3864 | Insntype val; | |
3865 | ||
3866 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3867 | val = elfcpp::Swap<32, true>::readval(wv); | |
3868 | val = (val & ~0x7c000) | 0x1c000; | |
3869 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3870 | } | |
3871 | break; | |
3872 | ||
3873 | // When optimizing IE --> LE, the only relocation that is handled | |
3874 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3875 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3876 | // rs2 and rd are the same. | |
3877 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3878 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3879 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3880 | { | |
3881 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3882 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3883 | Insntype rs2 = val & 0x1f; | |
3884 | Insntype rd = (val >> 25) & 0x1f; | |
3885 | ||
3886 | if (rs2 == rd) | |
3887 | val = sparc_nop; | |
3888 | else | |
3889 | val = sparc_mov | (val & 0x3e00001f); | |
3890 | ||
3891 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3892 | } | |
3893 | break; | |
3894 | ||
3895 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3896 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3897 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3898 | { | |
2ea97941 | 3899 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3900 | switch (r_type) |
3901 | { | |
3902 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3903 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3904 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3905 | break; |
3906 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3907 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3908 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3909 | break; |
3910 | } | |
3911 | break; | |
3912 | } | |
3913 | else if (optimized_type == tls::TLSOPT_NONE) | |
3914 | { | |
3915 | // Relocate the field with the offset of the GOT entry for | |
3916 | // the tp-relative offset of the symbol. | |
3917 | if (gsym != NULL) | |
3918 | { | |
3919 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3920 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3921 | } |
3922 | else | |
3923 | { | |
3924 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3925 | gold_assert(object->local_has_got_offset(r_sym, | |
3926 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3927 | value = object->local_got_offset(r_sym, |
3928 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3929 | } |
3930 | switch (r_type) | |
3931 | { | |
3932 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3933 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3934 | break; |
3935 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3936 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3937 | break; |
3938 | } | |
3939 | break; | |
3940 | } | |
3941 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3942 | _("unsupported reloc %u"), | |
3943 | r_type); | |
3944 | break; | |
3945 | ||
9efe6174 ILT |
3946 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3947 | // This seems to be mainly so that we can find the addition | |
3948 | // instruction if there is one. There doesn't seem to be any | |
3949 | // actual relocation to apply. | |
3950 | break; | |
3951 | ||
f5314dd5 DM |
3952 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3953 | // If we're creating a shared library, a dynamic relocation will | |
3954 | // have been created for this location, so do not apply it now. | |
3955 | if (!parameters->options().shared()) | |
3956 | { | |
2ea97941 ILT |
3957 | value -= tls_segment->memsz(); |
3958 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3959 | } |
3960 | break; | |
3961 | ||
3962 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3963 | // If we're creating a shared library, a dynamic relocation will | |
3964 | // have been created for this location, so do not apply it now. | |
3965 | if (!parameters->options().shared()) | |
3966 | { | |
2ea97941 ILT |
3967 | value -= tls_segment->memsz(); |
3968 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3969 | } |
3970 | break; | |
3971 | } | |
3972 | } | |
3973 | ||
a5a5f7a3 DM |
3974 | // Relax a call instruction. |
3975 | ||
3976 | template<int size, bool big_endian> | |
3977 | inline void | |
3978 | Target_sparc<size, big_endian>::Relocate::relax_call( | |
3979 | Target_sparc<size, big_endian>* target, | |
3980 | unsigned char* view, | |
3981 | const elfcpp::Rela<size, big_endian>& rela, | |
3982 | section_size_type view_size) | |
3983 | { | |
3984 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; | |
3985 | Insntype *wv = reinterpret_cast<Insntype*>(view); | |
3986 | Insntype call_insn, delay_insn, set_insn; | |
3987 | uint32_t op3, reg, off; | |
3988 | ||
3989 | // This code tries to relax call instructions that meet | |
3990 | // certain criteria. | |
3991 | // | |
3992 | // The first criteria is that the call must be such that the return | |
3993 | // address which the call writes into %o7 is unused. Two sequences | |
3994 | // meet this criteria, and are used to implement tail calls. | |
3995 | // | |
3996 | // Leaf function tail call: | |
3997 | // | |
3998 | // or %o7, %g0, %ANY_REG | |
3999 | // call FUNC | |
4000 | // or %ANY_REG, %g0, %o7 | |
4001 | // | |
4002 | // Non-leaf function tail call: | |
4003 | // | |
4004 | // call FUNC | |
4005 | // restore | |
4006 | // | |
4007 | // The second criteria is that the call destination is close. If | |
4008 | // the displacement can fit in a signed 22-bit immediate field of a | |
4009 | // pre-V9 branch, we can do it. If we are generating a 64-bit | |
4010 | // object or a 32-bit object with ELF machine type EF_SPARC32PLUS, | |
4011 | // and the displacement fits in a signed 19-bit immediate field, | |
4012 | // then we can use a V9 branch. | |
4013 | ||
4014 | // Make sure the delay instruction can be safely accessed. | |
4015 | if (rela.get_r_offset() + 8 > view_size) | |
4016 | return; | |
4017 | ||
4018 | call_insn = elfcpp::Swap<32, true>::readval(wv); | |
4019 | delay_insn = elfcpp::Swap<32, true>::readval(wv + 1); | |
4020 | ||
4021 | // Make sure it is really a call instruction. | |
4022 | if (((call_insn >> 30) & 0x3) != 1) | |
4023 | return; | |
4024 | ||
4025 | if (((delay_insn >> 30) & 0x3) != 2) | |
4026 | return; | |
4027 | ||
4028 | // Accept only a restore or an integer arithmetic operation whose | |
4029 | // sole side effect is to write the %o7 register (and perhaps set | |
4030 | // the condition codes, which are considered clobbered across | |
4031 | // function calls). | |
4032 | // | |
4033 | // For example, we don't want to match a tagged addition or | |
4034 | // subtraction. We also don't want to match something like a | |
4035 | // divide. | |
4036 | // | |
4037 | // Specifically we accept add{,cc}, and{,cc}, or{,cc}, | |
4038 | // xor{,cc}, sub{,cc}, andn{,cc}, orn{,cc}, and xnor{,cc}. | |
4039 | ||
4040 | op3 = (delay_insn >> 19) & 0x3f; | |
4041 | reg = (delay_insn >> 25) & 0x1f; | |
4042 | if (op3 != 0x3d | |
4043 | && ((op3 & 0x28) != 0 || reg != 15)) | |
4044 | return; | |
4045 | ||
4046 | // For non-restore instructions, make sure %o7 isn't | |
4047 | // an input. | |
4048 | if (op3 != 0x3d) | |
4049 | { | |
4050 | // First check RS1 | |
4051 | reg = (delay_insn >> 14) & 0x15; | |
4052 | if (reg == 15) | |
4053 | return; | |
4054 | ||
4055 | // And if non-immediate, check RS2 | |
4056 | if (((delay_insn >> 13) & 1) == 0) | |
4057 | { | |
4058 | reg = (delay_insn & 0x1f); | |
4059 | if (reg == 15) | |
4060 | return; | |
4061 | } | |
4062 | } | |
4063 | ||
4064 | // Now check the branch distance. We are called after the | |
4065 | // call has been relocated, so we just have to peek at the | |
4066 | // offset contained in the instruction. | |
4067 | off = call_insn & 0x3fffffff; | |
4068 | if ((off & 0x3fe00000) != 0 | |
4069 | && (off & 0x3fe00000) != 0x3fe00000) | |
4070 | return; | |
4071 | ||
4072 | if ((size == 64 || target->elf_machine_ == elfcpp::EM_SPARC32PLUS) | |
4073 | && ((off & 0x3c0000) == 0 | |
4074 | || (off & 0x3c0000) == 0x3c0000)) | |
4075 | { | |
4076 | // ba,pt %xcc, FUNC | |
4077 | call_insn = 0x10680000 | (off & 0x07ffff); | |
4078 | } | |
4079 | else | |
4080 | { | |
4081 | // ba FUNC | |
4082 | call_insn = 0x10800000 | (off & 0x3fffff); | |
4083 | } | |
4084 | elfcpp::Swap<32, true>::writeval(wv, call_insn); | |
4085 | ||
4086 | // See if we can NOP out the delay slot instruction. We peek | |
4087 | // at the instruction before the call to make sure we're dealing | |
4088 | // with exactly the: | |
4089 | // | |
4090 | // or %o7, %g0, %ANY_REG | |
4091 | // call | |
4092 | // or %ANY_REG, %g0, %o7 | |
4093 | // | |
4094 | // case. Otherwise this might be a tricky piece of hand written | |
4095 | // assembler calculating %o7 in some non-trivial way, and therefore | |
4096 | // we can't be sure that NOP'ing out the delay slot is safe. | |
4097 | if (op3 == 0x02 | |
4098 | && rela.get_r_offset() >= 4) | |
4099 | { | |
4100 | if ((delay_insn & ~(0x1f << 14)) != 0x9e100000) | |
4101 | return; | |
4102 | ||
4103 | set_insn = elfcpp::Swap<32, true>::readval(wv - 1); | |
4104 | if ((set_insn & ~(0x1f << 25)) != 0x8013c000) | |
4105 | return; | |
4106 | ||
4107 | reg = (set_insn >> 25) & 0x1f; | |
4108 | if (reg == 0 || reg == 15) | |
4109 | return; | |
4110 | if (reg != ((delay_insn >> 14) & 0x1f)) | |
4111 | return; | |
4112 | ||
4113 | // All tests pass, nop it out. | |
4114 | elfcpp::Swap<32, true>::writeval(wv + 1, sparc_nop); | |
4115 | } | |
4116 | } | |
4117 | ||
f5314dd5 DM |
4118 | // Relocate section data. |
4119 | ||
4120 | template<int size, bool big_endian> | |
4121 | void | |
4122 | Target_sparc<size, big_endian>::relocate_section( | |
4123 | const Relocate_info<size, big_endian>* relinfo, | |
4124 | unsigned int sh_type, | |
4125 | const unsigned char* prelocs, | |
4126 | size_t reloc_count, | |
4127 | Output_section* output_section, | |
4128 | bool needs_special_offset_handling, | |
4129 | unsigned char* view, | |
4130 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
4131 | section_size_type view_size, |
4132 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
4133 | { |
4134 | typedef Target_sparc<size, big_endian> Sparc; | |
4135 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
4136 | ||
4137 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4138 | ||
4139 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
4140 | Sparc_relocate>( | |
4141 | relinfo, | |
4142 | this, | |
4143 | prelocs, | |
4144 | reloc_count, | |
4145 | output_section, | |
4146 | needs_special_offset_handling, | |
4147 | view, | |
4148 | address, | |
364c7fa5 ILT |
4149 | view_size, |
4150 | reloc_symbol_changes); | |
f5314dd5 DM |
4151 | } |
4152 | ||
4153 | // Return the size of a relocation while scanning during a relocatable | |
4154 | // link. | |
4155 | ||
4156 | template<int size, bool big_endian> | |
4157 | unsigned int | |
4158 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
4159 | unsigned int, | |
4160 | Relobj*) | |
4161 | { | |
4162 | // We are always SHT_RELA, so we should never get here. | |
4163 | gold_unreachable(); | |
4164 | return 0; | |
4165 | } | |
4166 | ||
4167 | // Scan the relocs during a relocatable link. | |
4168 | ||
4169 | template<int size, bool big_endian> | |
4170 | void | |
4171 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
4172 | Symbol_table* symtab, |
4173 | Layout* layout, | |
6fa2a40b | 4174 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
4175 | unsigned int data_shndx, |
4176 | unsigned int sh_type, | |
4177 | const unsigned char* prelocs, | |
4178 | size_t reloc_count, | |
4179 | Output_section* output_section, | |
4180 | bool needs_special_offset_handling, | |
4181 | size_t local_symbol_count, | |
4182 | const unsigned char* plocal_symbols, | |
4183 | Relocatable_relocs* rr) | |
4184 | { | |
4185 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4186 | ||
4187 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
4188 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
4189 | ||
4190 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
4191 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
4192 | symtab, |
4193 | layout, | |
4194 | object, | |
4195 | data_shndx, | |
4196 | prelocs, | |
4197 | reloc_count, | |
4198 | output_section, | |
4199 | needs_special_offset_handling, | |
4200 | local_symbol_count, | |
4201 | plocal_symbols, | |
4202 | rr); | |
4203 | } | |
4204 | ||
7404fe1b | 4205 | // Emit relocations for a section. |
f5314dd5 DM |
4206 | |
4207 | template<int size, bool big_endian> | |
4208 | void | |
7404fe1b | 4209 | Target_sparc<size, big_endian>::relocate_relocs( |
f5314dd5 DM |
4210 | const Relocate_info<size, big_endian>* relinfo, |
4211 | unsigned int sh_type, | |
4212 | const unsigned char* prelocs, | |
4213 | size_t reloc_count, | |
4214 | Output_section* output_section, | |
4215 | off_t offset_in_output_section, | |
4216 | const Relocatable_relocs* rr, | |
4217 | unsigned char* view, | |
4218 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
4219 | section_size_type view_size, | |
4220 | unsigned char* reloc_view, | |
4221 | section_size_type reloc_view_size) | |
4222 | { | |
4223 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
4224 | ||
7404fe1b | 4225 | gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>( |
f5314dd5 DM |
4226 | relinfo, |
4227 | prelocs, | |
4228 | reloc_count, | |
4229 | output_section, | |
4230 | offset_in_output_section, | |
4231 | rr, | |
4232 | view, | |
4233 | view_address, | |
4234 | view_size, | |
4235 | reloc_view, | |
4236 | reloc_view_size); | |
4237 | } | |
4238 | ||
4239 | // Return the value to use for a dynamic which requires special | |
4240 | // treatment. This is how we support equality comparisons of function | |
4241 | // pointers across shared library boundaries, as described in the | |
4242 | // processor specific ABI supplement. | |
4243 | ||
4244 | template<int size, bool big_endian> | |
4245 | uint64_t | |
4246 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
4247 | { | |
4248 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
4249 | return this->plt_section()->address() + gsym->plt_offset(); | |
4250 | } | |
4251 | ||
a4d85145 DM |
4252 | // do_make_elf_object to override the same function in the base class. |
4253 | // We need to use a target-specific sub-class of | |
4254 | // Sized_relobj_file<size, big_endian> to process SPARC specific bits | |
4255 | // of the ELF headers. Hence we need to have our own ELF object creation. | |
4256 | ||
4257 | template<int size, bool big_endian> | |
4258 | Object* | |
4259 | Target_sparc<size, big_endian>::do_make_elf_object( | |
4260 | const std::string& name, | |
4261 | Input_file* input_file, | |
4262 | off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr) | |
4263 | { | |
4264 | elfcpp::Elf_Half machine = ehdr.get_e_machine(); | |
4265 | elfcpp::Elf_Word flags = ehdr.get_e_flags(); | |
4266 | elfcpp::Elf_Word omm, mm; | |
2e702c99 | 4267 | |
a4d85145 DM |
4268 | switch (machine) |
4269 | { | |
4270 | case elfcpp::EM_SPARC32PLUS: | |
4271 | this->elf_machine_ = elfcpp::EM_SPARC32PLUS; | |
4272 | break; | |
4273 | ||
4274 | case elfcpp::EM_SPARC: | |
4275 | case elfcpp::EM_SPARCV9: | |
4276 | break; | |
4277 | ||
4278 | default: | |
4279 | break; | |
4280 | } | |
4281 | ||
4282 | if (!this->elf_flags_set_) | |
4283 | { | |
4284 | this->elf_flags_ = flags; | |
4285 | this->elf_flags_set_ = true; | |
4286 | } | |
4287 | else | |
4288 | { | |
4289 | // Accumulate cpu feature bits. | |
4290 | this->elf_flags_ |= (flags & (elfcpp::EF_SPARC_32PLUS | |
4291 | | elfcpp::EF_SPARC_SUN_US1 | |
4292 | | elfcpp::EF_SPARC_HAL_R1 | |
4293 | | elfcpp::EF_SPARC_SUN_US3)); | |
4294 | ||
4295 | // Bump the memory model setting to the most restrictive | |
4296 | // one we encounter. | |
4297 | omm = (this->elf_flags_ & elfcpp::EF_SPARCV9_MM); | |
4298 | mm = (flags & elfcpp::EF_SPARCV9_MM); | |
4299 | if (omm != mm) | |
4300 | { | |
4301 | if (mm == elfcpp::EF_SPARCV9_TSO) | |
4302 | { | |
4303 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4304 | this->elf_flags_ |= elfcpp::EF_SPARCV9_TSO; | |
4305 | } | |
4306 | else if (mm == elfcpp::EF_SPARCV9_PSO | |
4307 | && omm == elfcpp::EF_SPARCV9_RMO) | |
4308 | { | |
4309 | this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM; | |
4310 | this->elf_flags_ |= elfcpp::EF_SPARCV9_PSO; | |
4311 | } | |
4312 | } | |
4313 | } | |
4314 | ||
4315 | // Validate that the little-endian flag matches how we've | |
4316 | // been instantiated. | |
4317 | if (!(flags & elfcpp::EF_SPARC_LEDATA) != big_endian) | |
4318 | { | |
4319 | if (big_endian) | |
4320 | gold_error(_("%s: little endian elf flag set on BE object"), | |
4321 | name.c_str()); | |
4322 | else | |
4323 | gold_error(_("%s: little endian elf flag clear on LE object"), | |
4324 | name.c_str()); | |
4325 | } | |
4326 | ||
4327 | return Target::do_make_elf_object(name, input_file, offset, ehdr); | |
4328 | } | |
4329 | ||
4330 | // Adjust ELF file header. | |
4331 | ||
4332 | template<int size, bool big_endian> | |
4333 | void | |
4334 | Target_sparc<size, big_endian>::do_adjust_elf_header( | |
4335 | unsigned char* view, | |
4336 | int len) const | |
4337 | { | |
4338 | elfcpp::Ehdr_write<size, big_endian> oehdr(view); | |
4339 | ||
4340 | oehdr.put_e_machine(this->elf_machine_); | |
4341 | oehdr.put_e_flags(this->elf_flags_); | |
4342 | ||
4343 | Sized_target<size, big_endian>::do_adjust_elf_header(view, len); | |
4344 | } | |
4345 | ||
f5314dd5 DM |
4346 | // The selector for sparc object files. |
4347 | ||
4348 | template<int size, bool big_endian> | |
4349 | class Target_selector_sparc : public Target_selector | |
4350 | { | |
4351 | public: | |
4352 | Target_selector_sparc() | |
4353 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
03ef7571 ILT |
4354 | (size == 64 ? "elf64-sparc" : "elf32-sparc"), |
4355 | (size == 64 ? "elf64_sparc" : "elf32_sparc")) | |
f5314dd5 DM |
4356 | { } |
4357 | ||
2e702c99 RM |
4358 | virtual Target* |
4359 | do_recognize(Input_file*, off_t, int machine, int, int) | |
f5314dd5 DM |
4360 | { |
4361 | switch (size) | |
4362 | { | |
4363 | case 64: | |
2ea97941 | 4364 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
4365 | return NULL; |
4366 | break; | |
4367 | ||
4368 | case 32: | |
2ea97941 ILT |
4369 | if (machine != elfcpp::EM_SPARC |
4370 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
4371 | return NULL; |
4372 | break; | |
4373 | ||
4374 | default: | |
4375 | return NULL; | |
4376 | } | |
4377 | ||
7f055c20 | 4378 | return this->instantiate_target(); |
f5314dd5 DM |
4379 | } |
4380 | ||
2e702c99 RM |
4381 | virtual Target* |
4382 | do_instantiate_target() | |
7f055c20 | 4383 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
4384 | }; |
4385 | ||
4386 | Target_selector_sparc<32, true> target_selector_sparc32; | |
4387 | Target_selector_sparc<64, true> target_selector_sparc64; | |
4388 | ||
4389 | } // End anonymous namespace. |