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1 | /* Hitachi SH64-specific support for 64-bit ELF |
2 | Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #define SH64_ELF64 | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "bfdlink.h" | |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/sh.h" | |
28 | ||
29 | /* Add a suffix for datalabel indirection symbols. It must not match any | |
30 | other symbols; user symbols with or without version or other | |
31 | decoration. It must only be used internally and not emitted by any | |
32 | means. */ | |
33 | #define DATALABEL_SUFFIX " DL" | |
34 | ||
35 | #define GOT_BIAS (-((long)-32768)) | |
36 | ||
37 | #define PLT_ENTRY_SIZE 64 | |
38 | ||
39 | /* Return size of a PLT entry. */ | |
40 | #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE | |
41 | ||
42 | /* Return offset of the PLT0 address in an absolute PLT entry. */ | |
43 | #define elf_sh64_plt_plt0_offset(info) 32 | |
44 | ||
45 | /* Return offset of the linker in PLT0 entry. */ | |
46 | #define elf_sh64_plt0_gotplt_offset(info) 0 | |
47 | ||
48 | /* Return offset of the trampoline in PLT entry */ | |
49 | #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */ | |
50 | ||
51 | /* Return offset of the symbol in PLT entry. */ | |
52 | #define elf_sh64_plt_symbol_offset(info) 0 | |
53 | ||
54 | /* Return offset of the relocation in PLT entry. */ | |
55 | #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44) | |
56 | ||
57 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
58 | ||
59 | /* The sh linker needs to keep track of the number of relocs that it | |
60 | decides to copy in check_relocs for each symbol. This is so that | |
61 | it can discard PC relative relocs if it doesn't need them when | |
62 | linking with -Bsymbolic. We store the information in a field | |
63 | extending the regular ELF linker hash table. */ | |
64 | ||
65 | /* This structure keeps track of the number of PC relative relocs we | |
66 | have copied for a given symbol. */ | |
67 | ||
68 | struct elf_sh64_pcrel_relocs_copied | |
69 | { | |
70 | /* Next section. */ | |
71 | struct elf_sh64_pcrel_relocs_copied *next; | |
72 | /* A section in dynobj. */ | |
73 | asection *section; | |
74 | /* Number of relocs copied in this section. */ | |
75 | bfd_size_type count; | |
76 | }; | |
77 | ||
78 | /* sh ELF linker hash entry. */ | |
79 | ||
80 | struct elf_sh64_link_hash_entry | |
81 | { | |
82 | struct elf_link_hash_entry root; | |
83 | ||
84 | bfd_vma datalabel_got_offset; | |
85 | ||
86 | /* Number of PC relative relocs copied for this symbol. */ | |
518313c3 | 87 | struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied; |
fbca6ad9 AO |
88 | }; |
89 | ||
90 | /* sh ELF linker hash table. */ | |
91 | ||
92 | struct elf_sh64_link_hash_table | |
93 | { | |
94 | struct elf_link_hash_table root; | |
95 | }; | |
96 | ||
97 | /* Traverse an sh ELF linker hash table. */ | |
98 | ||
99 | #define sh64_elf64_link_hash_traverse(table, func, info) \ | |
100 | (elf_link_hash_traverse \ | |
101 | (&(table)->root, \ | |
102 | (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ | |
103 | (info))) | |
104 | ||
105 | /* Get the sh ELF linker hash table from a link_info structure. */ | |
106 | ||
107 | #define sh64_elf64_hash_table(p) \ | |
108 | ((struct elf_sh64_link_hash_table *) ((p)->hash)) | |
109 | ||
110 | static boolean sh_elf64_copy_private_data PARAMS ((bfd *, bfd *)); | |
111 | static boolean sh_elf64_copy_private_data_internal PARAMS ((bfd *, bfd *)); | |
112 | static boolean sh_elf64_merge_private_data PARAMS ((bfd *, bfd *)); | |
113 | static bfd_reloc_status_type sh_elf64_ignore_reloc | |
114 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
115 | static bfd_reloc_status_type sh_elf64_reloc | |
116 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
117 | static reloc_howto_type *sh_elf64_reloc_type_lookup | |
118 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
119 | static void sh_elf64_info_to_howto | |
120 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
121 | static boolean sh_elf64_relocate_section | |
122 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
123 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
124 | static bfd_byte *sh_elf64_get_relocated_section_contents | |
125 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, | |
126 | bfd_byte *, boolean, asymbol **)); | |
127 | static boolean sh_elf64_set_mach_from_flags PARAMS ((bfd *)); | |
128 | static boolean sh_elf64_set_private_flags PARAMS ((bfd *, flagword)); | |
129 | static asection *sh_elf64_gc_mark_hook | |
130 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
131 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
132 | static boolean sh_elf64_gc_sweep_hook | |
133 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
134 | const Elf_Internal_Rela *)); | |
135 | static boolean sh_elf64_check_relocs | |
136 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
137 | const Elf_Internal_Rela *)); | |
138 | static int sh64_elf64_get_symbol_type PARAMS ((Elf_Internal_Sym *, int)); | |
139 | static boolean sh64_elf64_add_symbol_hook | |
140 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
141 | const char **, flagword *, asection **, bfd_vma *)); | |
142 | extern boolean sh64_elf64_link_output_symbol_hook | |
143 | PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *, | |
144 | asection *)); | |
145 | static boolean sh64_elf64_fake_sections | |
146 | PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); | |
147 | static void sh64_elf64_final_write_processing PARAMS ((bfd *, boolean)); | |
518313c3 AO |
148 | static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc |
149 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
150 | static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create | |
151 | PARAMS ((bfd *)); | |
152 | inline static void movi_shori_putval PARAMS ((bfd *, unsigned long, char *)); | |
153 | inline static void movi_3shori_putval PARAMS ((bfd *, bfd_vma, char *)); | |
154 | static boolean sh64_elf64_create_dynamic_sections | |
155 | PARAMS ((bfd *, struct bfd_link_info *)); | |
156 | static boolean sh64_elf64_adjust_dynamic_symbol | |
157 | PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *)); | |
158 | static boolean sh64_elf64_discard_copies | |
159 | PARAMS ((struct elf_sh64_link_hash_entry *, PTR)); | |
160 | static boolean sh64_elf64_size_dynamic_sections | |
161 | PARAMS ((bfd *, struct bfd_link_info *)); | |
162 | static boolean sh64_elf64_finish_dynamic_symbol | |
163 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
164 | Elf_Internal_Sym *)); | |
165 | static boolean sh64_elf64_finish_dynamic_sections | |
166 | PARAMS ((bfd *, struct bfd_link_info *)); | |
fbca6ad9 AO |
167 | |
168 | static reloc_howto_type sh_elf64_howto_table[] = { | |
169 | /* No relocation. */ | |
170 | HOWTO (R_SH_NONE, /* type */ | |
171 | 0, /* rightshift */ | |
172 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
173 | 0, /* bitsize */ | |
174 | false, /* pc_relative */ | |
175 | 0, /* bitpos */ | |
176 | complain_overflow_dont, /* complain_on_overflow */ | |
177 | sh_elf64_ignore_reloc, /* special_function */ | |
178 | "R_SH_NONE", /* name */ | |
179 | false, /* partial_inplace */ | |
180 | 0, /* src_mask */ | |
181 | 0, /* dst_mask */ | |
182 | false), /* pcrel_offset */ | |
183 | ||
184 | /* 32 bit absolute relocation. Setting partial_inplace to true and | |
185 | src_mask to a non-zero value is similar to the COFF toolchain. */ | |
186 | HOWTO (R_SH_DIR32, /* type */ | |
187 | 0, /* rightshift */ | |
188 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
189 | 32, /* bitsize */ | |
190 | false, /* pc_relative */ | |
191 | 0, /* bitpos */ | |
192 | complain_overflow_bitfield, /* complain_on_overflow */ | |
193 | sh_elf64_reloc, /* special_function */ | |
194 | "R_SH_DIR32", /* name */ | |
195 | true, /* partial_inplace */ | |
196 | 0xffffffff, /* src_mask */ | |
197 | 0xffffffff, /* dst_mask */ | |
198 | false), /* pcrel_offset */ | |
199 | ||
200 | /* 32 bit PC relative relocation. */ | |
201 | HOWTO (R_SH_REL32, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
204 | 32, /* bitsize */ | |
205 | true, /* pc_relative */ | |
206 | 0, /* bitpos */ | |
207 | complain_overflow_signed, /* complain_on_overflow */ | |
208 | sh_elf64_ignore_reloc, /* special_function */ | |
209 | "R_SH_REL32", /* name */ | |
210 | false, /* partial_inplace */ | |
211 | 0, /* src_mask */ | |
212 | 0xffffffff, /* dst_mask */ | |
213 | true), /* pcrel_offset */ | |
214 | ||
215 | /* For 32-bit sh, this is R_SH_DIR8WPN. */ | |
216 | EMPTY_HOWTO (3), | |
217 | ||
218 | /* For 32-bit sh, this is R_SH_IND12W. */ | |
219 | EMPTY_HOWTO (4), | |
220 | ||
221 | /* For 32-bit sh, this is R_SH_DIR8WPL. */ | |
222 | EMPTY_HOWTO (5), | |
223 | ||
224 | /* For 32-bit sh, this is R_SH_DIR8WPZ. */ | |
225 | EMPTY_HOWTO (6), | |
226 | ||
227 | /* For 32-bit sh, this is R_SH_DIR8BP. */ | |
228 | EMPTY_HOWTO (7), | |
229 | ||
230 | /* For 32-bit sh, this is R_SH_DIR8W. */ | |
231 | EMPTY_HOWTO (8), | |
232 | ||
233 | /* For 32-bit sh, this is R_SH_DIR8L. */ | |
234 | EMPTY_HOWTO (9), | |
235 | ||
236 | EMPTY_HOWTO (10), | |
237 | EMPTY_HOWTO (11), | |
238 | EMPTY_HOWTO (12), | |
239 | EMPTY_HOWTO (13), | |
240 | EMPTY_HOWTO (14), | |
241 | EMPTY_HOWTO (15), | |
242 | EMPTY_HOWTO (16), | |
243 | EMPTY_HOWTO (17), | |
244 | EMPTY_HOWTO (18), | |
245 | EMPTY_HOWTO (19), | |
246 | EMPTY_HOWTO (20), | |
247 | EMPTY_HOWTO (21), | |
248 | EMPTY_HOWTO (22), | |
249 | EMPTY_HOWTO (23), | |
250 | EMPTY_HOWTO (24), | |
251 | ||
252 | /* The remaining relocs are a GNU extension used for relaxing. The | |
253 | final pass of the linker never needs to do anything with any of | |
254 | these relocs. Any required operations are handled by the | |
255 | relaxation code. */ | |
256 | ||
257 | /* A 16 bit switch table entry. This is generated for an expression | |
258 | such as ``.word L1 - L2''. The offset holds the difference | |
259 | between the reloc address and L2. */ | |
260 | HOWTO (R_SH_SWITCH16, /* type */ | |
261 | 0, /* rightshift */ | |
262 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 16, /* bitsize */ | |
264 | false, /* pc_relative */ | |
265 | 0, /* bitpos */ | |
266 | complain_overflow_unsigned, /* complain_on_overflow */ | |
267 | sh_elf64_ignore_reloc, /* special_function */ | |
268 | "R_SH_SWITCH16", /* name */ | |
269 | false, /* partial_inplace */ | |
270 | 0, /* src_mask */ | |
271 | 0, /* dst_mask */ | |
272 | true), /* pcrel_offset */ | |
273 | ||
274 | /* A 32 bit switch table entry. This is generated for an expression | |
275 | such as ``.long L1 - L2''. The offset holds the difference | |
276 | between the reloc address and L2. */ | |
277 | HOWTO (R_SH_SWITCH32, /* type */ | |
278 | 0, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 32, /* bitsize */ | |
281 | false, /* pc_relative */ | |
282 | 0, /* bitpos */ | |
283 | complain_overflow_unsigned, /* complain_on_overflow */ | |
284 | sh_elf64_ignore_reloc, /* special_function */ | |
285 | "R_SH_SWITCH32", /* name */ | |
286 | false, /* partial_inplace */ | |
287 | 0, /* src_mask */ | |
288 | 0, /* dst_mask */ | |
289 | true), /* pcrel_offset */ | |
290 | ||
291 | /* For 32-bit sh, this is R_SH_USES. */ | |
292 | EMPTY_HOWTO (27), | |
293 | ||
294 | /* For 32-bit sh, this is R_SH_COUNT. */ | |
295 | EMPTY_HOWTO (28), | |
296 | ||
297 | /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation, | |
298 | this might be emitted. When linker relaxation is implemented, we | |
299 | might want to use it. */ | |
300 | EMPTY_HOWTO (29), | |
301 | ||
302 | /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation, | |
303 | this might be emitted. When linker relaxation is implemented, we | |
304 | might want to use it. */ | |
305 | EMPTY_HOWTO (30), | |
306 | ||
307 | /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation, | |
308 | this might be emitted. When linker relaxation is implemented, we | |
309 | might want to use it. */ | |
310 | EMPTY_HOWTO (31), | |
311 | ||
312 | /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation, | |
313 | this might be emitted. When linker relaxation is implemented, we | |
314 | might want to use it. */ | |
315 | EMPTY_HOWTO (32), | |
316 | ||
317 | /* An 8 bit switch table entry. This is generated for an expression | |
318 | such as ``.word L1 - L2''. The offset holds the difference | |
319 | between the reloc address and L2. */ | |
320 | HOWTO (R_SH_SWITCH8, /* type */ | |
321 | 0, /* rightshift */ | |
322 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
323 | 8, /* bitsize */ | |
324 | false, /* pc_relative */ | |
325 | 0, /* bitpos */ | |
326 | complain_overflow_unsigned, /* complain_on_overflow */ | |
327 | sh_elf64_ignore_reloc, /* special_function */ | |
328 | "R_SH_SWITCH8", /* name */ | |
329 | false, /* partial_inplace */ | |
330 | 0, /* src_mask */ | |
331 | 0, /* dst_mask */ | |
332 | true), /* pcrel_offset */ | |
333 | ||
334 | /* GNU extension to record C++ vtable hierarchy */ | |
335 | HOWTO (R_SH_GNU_VTINHERIT, /* type */ | |
336 | 0, /* rightshift */ | |
337 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
338 | 0, /* bitsize */ | |
339 | false, /* pc_relative */ | |
340 | 0, /* bitpos */ | |
341 | complain_overflow_dont, /* complain_on_overflow */ | |
342 | NULL, /* special_function */ | |
343 | "R_SH_GNU_VTINHERIT", /* name */ | |
344 | false, /* partial_inplace */ | |
345 | 0, /* src_mask */ | |
346 | 0, /* dst_mask */ | |
347 | false), /* pcrel_offset */ | |
348 | ||
349 | /* GNU extension to record C++ vtable member usage */ | |
350 | HOWTO (R_SH_GNU_VTENTRY, /* type */ | |
351 | 0, /* rightshift */ | |
352 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
353 | 0, /* bitsize */ | |
354 | false, /* pc_relative */ | |
355 | 0, /* bitpos */ | |
356 | complain_overflow_dont, /* complain_on_overflow */ | |
357 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
358 | "R_SH_GNU_VTENTRY", /* name */ | |
359 | false, /* partial_inplace */ | |
360 | 0, /* src_mask */ | |
361 | 0, /* dst_mask */ | |
362 | false), /* pcrel_offset */ | |
363 | ||
364 | /* For 32-bit sh, this is R_SH_LOOP_START. */ | |
365 | EMPTY_HOWTO (36), | |
366 | ||
367 | /* For 32-bit sh, this is R_SH_LOOP_END. */ | |
368 | EMPTY_HOWTO (37), | |
369 | ||
370 | EMPTY_HOWTO (38), | |
371 | EMPTY_HOWTO (39), | |
372 | EMPTY_HOWTO (40), | |
373 | EMPTY_HOWTO (41), | |
374 | EMPTY_HOWTO (42), | |
375 | EMPTY_HOWTO (43), | |
376 | EMPTY_HOWTO (44), | |
377 | ||
378 | /* Used in SHLLI.L and SHLRI.L. */ | |
379 | HOWTO (R_SH_DIR5U, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 5, /* bitsize */ | |
383 | false, /* pc_relative */ | |
384 | 10, /* bitpos */ | |
385 | complain_overflow_unsigned, /* complain_on_overflow */ | |
386 | bfd_elf_generic_reloc, /* special_function */ | |
387 | "R_SH_DIR5U", /* name */ | |
388 | false, /* partial_inplace */ | |
389 | 0, /* src_mask */ | |
390 | 0xfc00, /* dst_mask */ | |
391 | false), /* pcrel_offset */ | |
392 | ||
393 | /* Used in SHARI, SHLLI et al. */ | |
394 | HOWTO (R_SH_DIR6U, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 6, /* bitsize */ | |
398 | false, /* pc_relative */ | |
399 | 10, /* bitpos */ | |
400 | complain_overflow_unsigned, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_SH_DIR6U", /* name */ | |
403 | false, /* partial_inplace */ | |
404 | 0, /* src_mask */ | |
405 | 0xfc00, /* dst_mask */ | |
406 | false), /* pcrel_offset */ | |
407 | ||
408 | /* Used in BxxI, LDHI.L et al. */ | |
409 | HOWTO (R_SH_DIR6S, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 6, /* bitsize */ | |
413 | false, /* pc_relative */ | |
414 | 10, /* bitpos */ | |
415 | complain_overflow_signed, /* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_SH_DIR6S", /* name */ | |
418 | false, /* partial_inplace */ | |
419 | 0, /* src_mask */ | |
420 | 0xfc00, /* dst_mask */ | |
421 | false), /* pcrel_offset */ | |
422 | ||
423 | /* Used in ADDI, ANDI et al. */ | |
424 | HOWTO (R_SH_DIR10S, /* type */ | |
425 | 0, /* rightshift */ | |
426 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
427 | 10, /* bitsize */ | |
428 | false, /* pc_relative */ | |
429 | 10, /* bitpos */ | |
430 | complain_overflow_signed, /* complain_on_overflow */ | |
431 | bfd_elf_generic_reloc, /* special_function */ | |
432 | "R_SH_DIR10S", /* name */ | |
433 | false, /* partial_inplace */ | |
434 | 0, /* src_mask */ | |
435 | 0xffc00, /* dst_mask */ | |
436 | false), /* pcrel_offset */ | |
437 | ||
438 | /* Used in LD.UW, ST.W et al. */ | |
439 | HOWTO (R_SH_DIR10SW, /* type */ | |
440 | 1, /* rightshift */ | |
441 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
442 | 11, /* bitsize */ | |
443 | false, /* pc_relative */ | |
444 | 10, /* bitpos */ | |
445 | complain_overflow_signed, /* complain_on_overflow */ | |
446 | bfd_elf_generic_reloc, /* special_function */ | |
447 | "R_SH_DIR10SW", /* name */ | |
448 | false, /* partial_inplace */ | |
449 | 0, /* src_mask */ | |
450 | 0xffc00, /* dst_mask */ | |
451 | false), /* pcrel_offset */ | |
452 | ||
453 | /* Used in LD.L, FLD.S et al. */ | |
454 | HOWTO (R_SH_DIR10SL, /* type */ | |
455 | 2, /* rightshift */ | |
456 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
457 | 12, /* bitsize */ | |
458 | false, /* pc_relative */ | |
459 | 10, /* bitpos */ | |
460 | complain_overflow_signed, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* special_function */ | |
462 | "R_SH_DIR10SL", /* name */ | |
463 | false, /* partial_inplace */ | |
464 | 0, /* src_mask */ | |
465 | 0xffc00, /* dst_mask */ | |
466 | false), /* pcrel_offset */ | |
467 | ||
468 | /* Used in FLD.D, FST.P et al. */ | |
469 | HOWTO (R_SH_DIR10SQ, /* type */ | |
470 | 3, /* rightshift */ | |
471 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
472 | 13, /* bitsize */ | |
473 | false, /* pc_relative */ | |
474 | 10, /* bitpos */ | |
475 | complain_overflow_signed, /* complain_on_overflow */ | |
476 | bfd_elf_generic_reloc, /* special_function */ | |
477 | "R_SH_DIR10SQ", /* name */ | |
478 | false, /* partial_inplace */ | |
479 | 0, /* src_mask */ | |
480 | 0xffc00, /* dst_mask */ | |
481 | false), /* pcrel_offset */ | |
482 | ||
483 | EMPTY_HOWTO (52), | |
484 | EMPTY_HOWTO (53), | |
485 | EMPTY_HOWTO (54), | |
486 | EMPTY_HOWTO (55), | |
487 | EMPTY_HOWTO (56), | |
488 | EMPTY_HOWTO (57), | |
489 | EMPTY_HOWTO (58), | |
490 | EMPTY_HOWTO (59), | |
491 | EMPTY_HOWTO (60), | |
492 | EMPTY_HOWTO (61), | |
493 | EMPTY_HOWTO (62), | |
494 | EMPTY_HOWTO (63), | |
495 | EMPTY_HOWTO (64), | |
496 | EMPTY_HOWTO (65), | |
497 | EMPTY_HOWTO (66), | |
498 | EMPTY_HOWTO (67), | |
499 | EMPTY_HOWTO (68), | |
500 | EMPTY_HOWTO (69), | |
501 | EMPTY_HOWTO (70), | |
502 | EMPTY_HOWTO (71), | |
503 | EMPTY_HOWTO (72), | |
504 | EMPTY_HOWTO (73), | |
505 | EMPTY_HOWTO (74), | |
506 | EMPTY_HOWTO (75), | |
507 | EMPTY_HOWTO (76), | |
508 | EMPTY_HOWTO (77), | |
509 | EMPTY_HOWTO (78), | |
510 | EMPTY_HOWTO (79), | |
511 | EMPTY_HOWTO (80), | |
512 | EMPTY_HOWTO (81), | |
513 | EMPTY_HOWTO (82), | |
514 | EMPTY_HOWTO (83), | |
515 | EMPTY_HOWTO (84), | |
516 | EMPTY_HOWTO (85), | |
517 | EMPTY_HOWTO (86), | |
518 | EMPTY_HOWTO (87), | |
519 | EMPTY_HOWTO (88), | |
520 | EMPTY_HOWTO (89), | |
521 | EMPTY_HOWTO (90), | |
522 | EMPTY_HOWTO (91), | |
523 | EMPTY_HOWTO (92), | |
524 | EMPTY_HOWTO (93), | |
525 | EMPTY_HOWTO (94), | |
526 | EMPTY_HOWTO (95), | |
527 | EMPTY_HOWTO (96), | |
528 | EMPTY_HOWTO (97), | |
529 | EMPTY_HOWTO (98), | |
530 | EMPTY_HOWTO (99), | |
531 | EMPTY_HOWTO (100), | |
532 | EMPTY_HOWTO (101), | |
533 | EMPTY_HOWTO (102), | |
534 | EMPTY_HOWTO (103), | |
535 | EMPTY_HOWTO (104), | |
536 | EMPTY_HOWTO (105), | |
537 | EMPTY_HOWTO (106), | |
538 | EMPTY_HOWTO (107), | |
539 | EMPTY_HOWTO (108), | |
540 | EMPTY_HOWTO (109), | |
541 | EMPTY_HOWTO (110), | |
542 | EMPTY_HOWTO (111), | |
543 | EMPTY_HOWTO (112), | |
544 | EMPTY_HOWTO (113), | |
545 | EMPTY_HOWTO (114), | |
546 | EMPTY_HOWTO (115), | |
547 | EMPTY_HOWTO (116), | |
548 | EMPTY_HOWTO (117), | |
549 | EMPTY_HOWTO (118), | |
550 | EMPTY_HOWTO (119), | |
551 | EMPTY_HOWTO (120), | |
552 | EMPTY_HOWTO (121), | |
553 | EMPTY_HOWTO (122), | |
554 | EMPTY_HOWTO (123), | |
555 | EMPTY_HOWTO (124), | |
556 | EMPTY_HOWTO (125), | |
557 | EMPTY_HOWTO (126), | |
558 | EMPTY_HOWTO (127), | |
559 | EMPTY_HOWTO (128), | |
560 | EMPTY_HOWTO (129), | |
561 | EMPTY_HOWTO (130), | |
562 | EMPTY_HOWTO (131), | |
563 | EMPTY_HOWTO (132), | |
564 | EMPTY_HOWTO (133), | |
565 | EMPTY_HOWTO (134), | |
566 | EMPTY_HOWTO (135), | |
567 | EMPTY_HOWTO (136), | |
568 | EMPTY_HOWTO (137), | |
569 | EMPTY_HOWTO (138), | |
570 | EMPTY_HOWTO (139), | |
571 | EMPTY_HOWTO (140), | |
572 | EMPTY_HOWTO (141), | |
573 | EMPTY_HOWTO (142), | |
574 | EMPTY_HOWTO (143), | |
575 | EMPTY_HOWTO (144), | |
576 | EMPTY_HOWTO (145), | |
577 | EMPTY_HOWTO (146), | |
578 | EMPTY_HOWTO (147), | |
579 | EMPTY_HOWTO (148), | |
580 | EMPTY_HOWTO (149), | |
581 | EMPTY_HOWTO (150), | |
582 | EMPTY_HOWTO (151), | |
583 | EMPTY_HOWTO (152), | |
584 | EMPTY_HOWTO (153), | |
585 | EMPTY_HOWTO (154), | |
586 | EMPTY_HOWTO (155), | |
587 | EMPTY_HOWTO (156), | |
588 | EMPTY_HOWTO (157), | |
589 | EMPTY_HOWTO (158), | |
590 | EMPTY_HOWTO (159), | |
591 | ||
592 | /* Relocs for dynamic linking for 32-bit SH would follow. We don't have | |
593 | any dynamic linking support for 64-bit SH at present. */ | |
594 | ||
595 | EMPTY_HOWTO (160), | |
596 | EMPTY_HOWTO (161), | |
597 | EMPTY_HOWTO (162), | |
598 | EMPTY_HOWTO (163), | |
599 | EMPTY_HOWTO (164), | |
600 | EMPTY_HOWTO (165), | |
601 | EMPTY_HOWTO (166), | |
602 | EMPTY_HOWTO (167), | |
603 | EMPTY_HOWTO (168), | |
604 | ||
605 | /* Back to SH5 relocations. */ | |
606 | /* Used in MOVI and SHORI (x & 65536). */ | |
607 | HOWTO (R_SH_GOT_LOW16, /* type */ | |
608 | 0, /* rightshift */ | |
609 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
610 | 64, /* bitsize */ | |
611 | false, /* pc_relative */ | |
612 | 10, /* bitpos */ | |
613 | complain_overflow_dont, /* complain_on_overflow */ | |
614 | bfd_elf_generic_reloc, /* special_function */ | |
615 | "R_SH_GOT_LOW16", /* name */ | |
616 | false, /* partial_inplace */ | |
617 | 0, /* src_mask */ | |
618 | 0x3fffc00, /* dst_mask */ | |
619 | false), /* pcrel_offset */ | |
620 | ||
621 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
622 | HOWTO (R_SH_GOT_MEDLOW16, /* type */ | |
623 | 16, /* rightshift */ | |
624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
625 | 64, /* bitsize */ | |
626 | false, /* pc_relative */ | |
627 | 10, /* bitpos */ | |
628 | complain_overflow_dont, /* complain_on_overflow */ | |
629 | bfd_elf_generic_reloc, /* special_function */ | |
630 | "R_SH_GOT_MEDLOW16", /* name */ | |
631 | false, /* partial_inplace */ | |
632 | 0, /* src_mask */ | |
633 | 0x3fffc00, /* dst_mask */ | |
634 | false), /* pcrel_offset */ | |
635 | ||
636 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
637 | HOWTO (R_SH_GOT_MEDHI16, /* type */ | |
638 | 32, /* rightshift */ | |
639 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 64, /* bitsize */ | |
641 | false, /* pc_relative */ | |
642 | 10, /* bitpos */ | |
643 | complain_overflow_dont, /* complain_on_overflow */ | |
644 | bfd_elf_generic_reloc, /* special_function */ | |
645 | "R_SH_GOT_MEDHI16", /* name */ | |
646 | false, /* partial_inplace */ | |
647 | 0, /* src_mask */ | |
648 | 0x3fffc00, /* dst_mask */ | |
649 | false), /* pcrel_offset */ | |
650 | ||
651 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
652 | HOWTO (R_SH_GOT_HI16, /* type */ | |
653 | 48, /* rightshift */ | |
654 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
655 | 64, /* bitsize */ | |
656 | false, /* pc_relative */ | |
657 | 10, /* bitpos */ | |
658 | complain_overflow_dont, /* complain_on_overflow */ | |
659 | bfd_elf_generic_reloc, /* special_function */ | |
660 | "R_SH_GOT_HI16", /* name */ | |
661 | false, /* partial_inplace */ | |
662 | 0, /* src_mask */ | |
663 | 0x3fffc00, /* dst_mask */ | |
664 | false), /* pcrel_offset */ | |
665 | ||
666 | /* Used in MOVI and SHORI (x & 65536). */ | |
667 | HOWTO (R_SH_GOTPLT_LOW16, /* type */ | |
668 | 0, /* rightshift */ | |
669 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
670 | 64, /* bitsize */ | |
671 | false, /* pc_relative */ | |
672 | 10, /* bitpos */ | |
673 | complain_overflow_dont, /* complain_on_overflow */ | |
674 | bfd_elf_generic_reloc, /* special_function */ | |
675 | "R_SH_GOTPLT_LOW16", /* name */ | |
676 | false, /* partial_inplace */ | |
677 | 0, /* src_mask */ | |
678 | 0x3fffc00, /* dst_mask */ | |
679 | false), /* pcrel_offset */ | |
680 | ||
681 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
682 | HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */ | |
683 | 16, /* rightshift */ | |
684 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
685 | 64, /* bitsize */ | |
686 | false, /* pc_relative */ | |
687 | 10, /* bitpos */ | |
688 | complain_overflow_dont, /* complain_on_overflow */ | |
689 | bfd_elf_generic_reloc, /* special_function */ | |
690 | "R_SH_GOTPLT_MEDLOW16", /* name */ | |
691 | false, /* partial_inplace */ | |
692 | 0, /* src_mask */ | |
693 | 0x3fffc00, /* dst_mask */ | |
694 | false), /* pcrel_offset */ | |
695 | ||
696 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
697 | HOWTO (R_SH_GOTPLT_MEDHI16, /* type */ | |
698 | 32, /* rightshift */ | |
699 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
700 | 64, /* bitsize */ | |
701 | false, /* pc_relative */ | |
702 | 10, /* bitpos */ | |
703 | complain_overflow_dont, /* complain_on_overflow */ | |
704 | bfd_elf_generic_reloc, /* special_function */ | |
705 | "R_SH_GOTPLT_MEDHI16", /* name */ | |
706 | false, /* partial_inplace */ | |
707 | 0, /* src_mask */ | |
708 | 0x3fffc00, /* dst_mask */ | |
709 | false), /* pcrel_offset */ | |
710 | ||
711 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
712 | HOWTO (R_SH_GOTPLT_HI16, /* type */ | |
713 | 48, /* rightshift */ | |
714 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
715 | 64, /* bitsize */ | |
716 | false, /* pc_relative */ | |
717 | 10, /* bitpos */ | |
718 | complain_overflow_dont, /* complain_on_overflow */ | |
719 | bfd_elf_generic_reloc, /* special_function */ | |
720 | "R_SH_GOTPLT_HI16", /* name */ | |
721 | false, /* partial_inplace */ | |
722 | 0, /* src_mask */ | |
723 | 0x3fffc00, /* dst_mask */ | |
724 | false), /* pcrel_offset */ | |
725 | ||
726 | /* Used in MOVI and SHORI (x & 65536). */ | |
727 | HOWTO (R_SH_PLT_LOW16, /* type */ | |
728 | 0, /* rightshift */ | |
729 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
730 | 64, /* bitsize */ | |
731 | true, /* pc_relative */ | |
732 | 10, /* bitpos */ | |
733 | complain_overflow_dont, /* complain_on_overflow */ | |
734 | bfd_elf_generic_reloc, /* special_function */ | |
735 | "R_SH_PLT_LOW16", /* name */ | |
736 | false, /* partial_inplace */ | |
737 | 0, /* src_mask */ | |
738 | 0x3fffc00, /* dst_mask */ | |
739 | true), /* pcrel_offset */ | |
740 | ||
741 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
742 | HOWTO (R_SH_PLT_MEDLOW16, /* type */ | |
743 | 16, /* rightshift */ | |
744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
745 | 64, /* bitsize */ | |
746 | true, /* pc_relative */ | |
747 | 10, /* bitpos */ | |
748 | complain_overflow_dont, /* complain_on_overflow */ | |
749 | bfd_elf_generic_reloc, /* special_function */ | |
750 | "R_SH_PLT_MEDLOW16", /* name */ | |
751 | false, /* partial_inplace */ | |
752 | 0, /* src_mask */ | |
753 | 0x3fffc00, /* dst_mask */ | |
754 | true), /* pcrel_offset */ | |
755 | ||
756 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
757 | HOWTO (R_SH_PLT_MEDHI16, /* type */ | |
758 | 32, /* rightshift */ | |
759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
760 | 64, /* bitsize */ | |
761 | true, /* pc_relative */ | |
762 | 10, /* bitpos */ | |
763 | complain_overflow_dont, /* complain_on_overflow */ | |
764 | bfd_elf_generic_reloc, /* special_function */ | |
765 | "R_SH_PLT_MEDHI16", /* name */ | |
766 | false, /* partial_inplace */ | |
767 | 0, /* src_mask */ | |
768 | 0x3fffc00, /* dst_mask */ | |
769 | true), /* pcrel_offset */ | |
770 | ||
771 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
772 | HOWTO (R_SH_PLT_HI16, /* type */ | |
773 | 48, /* rightshift */ | |
774 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
775 | 64, /* bitsize */ | |
776 | true, /* pc_relative */ | |
777 | 10, /* bitpos */ | |
778 | complain_overflow_dont, /* complain_on_overflow */ | |
779 | bfd_elf_generic_reloc, /* special_function */ | |
780 | "R_SH_PLT_HI16", /* name */ | |
781 | false, /* partial_inplace */ | |
782 | 0, /* src_mask */ | |
783 | 0x3fffc00, /* dst_mask */ | |
784 | true), /* pcrel_offset */ | |
785 | ||
786 | /* Used in MOVI and SHORI (x & 65536). */ | |
787 | HOWTO (R_SH_GOTOFF_LOW16, /* type */ | |
788 | 0, /* rightshift */ | |
789 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
790 | 64, /* bitsize */ | |
791 | false, /* pc_relative */ | |
792 | 10, /* bitpos */ | |
793 | complain_overflow_dont, /* complain_on_overflow */ | |
794 | bfd_elf_generic_reloc, /* special_function */ | |
795 | "R_SH_GOTOFF_LOW16", /* name */ | |
796 | false, /* partial_inplace */ | |
797 | 0, /* src_mask */ | |
798 | 0x3fffc00, /* dst_mask */ | |
799 | false), /* pcrel_offset */ | |
800 | ||
801 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
802 | HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */ | |
803 | 16, /* rightshift */ | |
804 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
805 | 64, /* bitsize */ | |
806 | false, /* pc_relative */ | |
807 | 10, /* bitpos */ | |
808 | complain_overflow_dont, /* complain_on_overflow */ | |
809 | bfd_elf_generic_reloc, /* special_function */ | |
810 | "R_SH_GOTOFF_MEDLOW16", /* name */ | |
811 | false, /* partial_inplace */ | |
812 | 0, /* src_mask */ | |
813 | 0x3fffc00, /* dst_mask */ | |
814 | false), /* pcrel_offset */ | |
815 | ||
816 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
817 | HOWTO (R_SH_GOTOFF_MEDHI16, /* type */ | |
818 | 32, /* rightshift */ | |
819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
820 | 64, /* bitsize */ | |
821 | false, /* pc_relative */ | |
822 | 10, /* bitpos */ | |
823 | complain_overflow_dont, /* complain_on_overflow */ | |
824 | bfd_elf_generic_reloc, /* special_function */ | |
825 | "R_SH_GOTOFF_MEDHI16", /* name */ | |
826 | false, /* partial_inplace */ | |
827 | 0, /* src_mask */ | |
828 | 0x3fffc00, /* dst_mask */ | |
829 | false), /* pcrel_offset */ | |
830 | ||
831 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
832 | HOWTO (R_SH_GOTOFF_HI16, /* type */ | |
833 | 48, /* rightshift */ | |
834 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
835 | 64, /* bitsize */ | |
836 | false, /* pc_relative */ | |
837 | 10, /* bitpos */ | |
838 | complain_overflow_dont, /* complain_on_overflow */ | |
839 | bfd_elf_generic_reloc, /* special_function */ | |
840 | "R_SH_GOTOFF_HI16", /* name */ | |
841 | false, /* partial_inplace */ | |
842 | 0, /* src_mask */ | |
843 | 0x3fffc00, /* dst_mask */ | |
844 | false), /* pcrel_offset */ | |
845 | ||
846 | /* Used in MOVI and SHORI (x & 65536). */ | |
847 | HOWTO (R_SH_GOTPC_LOW16, /* type */ | |
848 | 0, /* rightshift */ | |
849 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
850 | 64, /* bitsize */ | |
851 | true, /* pc_relative */ | |
852 | 10, /* bitpos */ | |
853 | complain_overflow_dont, /* complain_on_overflow */ | |
854 | bfd_elf_generic_reloc, /* special_function */ | |
855 | "R_SH_GOTPC_LOW16", /* name */ | |
856 | false, /* partial_inplace */ | |
857 | 0, /* src_mask */ | |
858 | 0x3fffc00, /* dst_mask */ | |
859 | true), /* pcrel_offset */ | |
860 | ||
861 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
862 | HOWTO (R_SH_GOTPC_MEDLOW16, /* type */ | |
863 | 16, /* rightshift */ | |
864 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
865 | 64, /* bitsize */ | |
866 | true, /* pc_relative */ | |
867 | 10, /* bitpos */ | |
868 | complain_overflow_dont, /* complain_on_overflow */ | |
869 | bfd_elf_generic_reloc, /* special_function */ | |
870 | "R_SH_GOTPC_MEDLOW16", /* name */ | |
871 | false, /* partial_inplace */ | |
872 | 0, /* src_mask */ | |
873 | 0x3fffc00, /* dst_mask */ | |
874 | true), /* pcrel_offset */ | |
875 | ||
876 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
877 | HOWTO (R_SH_GOTPC_MEDHI16, /* type */ | |
878 | 32, /* rightshift */ | |
879 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
880 | 64, /* bitsize */ | |
881 | true, /* pc_relative */ | |
882 | 10, /* bitpos */ | |
883 | complain_overflow_dont, /* complain_on_overflow */ | |
884 | bfd_elf_generic_reloc, /* special_function */ | |
885 | "R_SH_GOTPC_MEDHI16", /* name */ | |
886 | false, /* partial_inplace */ | |
887 | 0, /* src_mask */ | |
888 | 0x3fffc00, /* dst_mask */ | |
889 | true), /* pcrel_offset */ | |
890 | ||
891 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
892 | HOWTO (R_SH_GOTPC_HI16, /* type */ | |
893 | 48, /* rightshift */ | |
894 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
895 | 64, /* bitsize */ | |
896 | true, /* pc_relative */ | |
897 | 10, /* bitpos */ | |
898 | complain_overflow_dont, /* complain_on_overflow */ | |
899 | bfd_elf_generic_reloc, /* special_function */ | |
900 | "R_SH_GOTPC_HI16", /* name */ | |
901 | false, /* partial_inplace */ | |
902 | 0, /* src_mask */ | |
903 | 0x3fffc00, /* dst_mask */ | |
904 | true), /* pcrel_offset */ | |
905 | ||
906 | /* Used in LD.L, FLD.S et al. */ | |
907 | HOWTO (R_SH_GOT10BY4, /* type */ | |
908 | 2, /* rightshift */ | |
909 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
910 | 12, /* bitsize */ | |
911 | false, /* pc_relative */ | |
912 | 10, /* bitpos */ | |
913 | complain_overflow_signed, /* complain_on_overflow */ | |
914 | bfd_elf_generic_reloc, /* special_function */ | |
915 | "R_SH_GOT10BY4", /* name */ | |
916 | false, /* partial_inplace */ | |
917 | 0, /* src_mask */ | |
918 | 0xffc00, /* dst_mask */ | |
919 | false), /* pcrel_offset */ | |
920 | ||
921 | /* Used in LD.L, FLD.S et al. */ | |
922 | HOWTO (R_SH_GOTPLT10BY4, /* type */ | |
923 | 2, /* rightshift */ | |
924 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
925 | 12, /* bitsize */ | |
926 | false, /* pc_relative */ | |
927 | 10, /* bitpos */ | |
928 | complain_overflow_signed, /* complain_on_overflow */ | |
929 | bfd_elf_generic_reloc, /* special_function */ | |
930 | "R_SH_GOTPLT10BY4", /* name */ | |
931 | false, /* partial_inplace */ | |
932 | 0, /* src_mask */ | |
933 | 0xffc00, /* dst_mask */ | |
934 | false), /* pcrel_offset */ | |
935 | ||
936 | /* Used in FLD.D, FST.P et al. */ | |
937 | HOWTO (R_SH_GOT10BY8, /* type */ | |
938 | 3, /* rightshift */ | |
939 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
940 | 13, /* bitsize */ | |
941 | false, /* pc_relative */ | |
942 | 10, /* bitpos */ | |
943 | complain_overflow_signed, /* complain_on_overflow */ | |
944 | bfd_elf_generic_reloc, /* special_function */ | |
945 | "R_SH_GOT10BY8", /* name */ | |
946 | false, /* partial_inplace */ | |
947 | 0, /* src_mask */ | |
948 | 0xffc00, /* dst_mask */ | |
949 | false), /* pcrel_offset */ | |
950 | ||
951 | /* Used in FLD.D, FST.P et al. */ | |
952 | HOWTO (R_SH_GOTPLT10BY8, /* type */ | |
953 | 3, /* rightshift */ | |
954 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
955 | 13, /* bitsize */ | |
956 | false, /* pc_relative */ | |
957 | 10, /* bitpos */ | |
958 | complain_overflow_signed, /* complain_on_overflow */ | |
959 | bfd_elf_generic_reloc, /* special_function */ | |
960 | "R_SH_GOTPLT10BY8", /* name */ | |
961 | false, /* partial_inplace */ | |
962 | 0, /* src_mask */ | |
963 | 0xffc00, /* dst_mask */ | |
964 | false), /* pcrel_offset */ | |
965 | ||
966 | HOWTO (R_SH_COPY64, /* type */ | |
967 | 0, /* rightshift */ | |
968 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
969 | 64, /* bitsize */ | |
970 | false, /* pc_relative */ | |
971 | 0, /* bitpos */ | |
972 | complain_overflow_dont, /* complain_on_overflow */ | |
973 | bfd_elf_generic_reloc, /* special_function */ | |
974 | "R_SH_COPY64", /* name */ | |
975 | false, /* partial_inplace */ | |
976 | 0, /* src_mask */ | |
977 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
978 | false), /* pcrel_offset */ | |
979 | ||
980 | HOWTO (R_SH_GLOB_DAT64, /* type */ | |
981 | 0, /* rightshift */ | |
982 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
983 | 64, /* bitsize */ | |
984 | false, /* pc_relative */ | |
985 | 0, /* bitpos */ | |
986 | complain_overflow_dont, /* complain_on_overflow */ | |
987 | bfd_elf_generic_reloc, /* special_function */ | |
988 | "R_SH_GLOB_DAT64", /* name */ | |
989 | false, /* partial_inplace */ | |
990 | 0, /* src_mask */ | |
991 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
992 | false), /* pcrel_offset */ | |
993 | ||
994 | HOWTO (R_SH_JMP_SLOT64, /* type */ | |
995 | 0, /* rightshift */ | |
996 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
997 | 64, /* bitsize */ | |
998 | false, /* pc_relative */ | |
999 | 0, /* bitpos */ | |
1000 | complain_overflow_dont, /* complain_on_overflow */ | |
1001 | bfd_elf_generic_reloc, /* special_function */ | |
1002 | "R_SH_JMP_SLOT64", /* name */ | |
1003 | false, /* partial_inplace */ | |
1004 | 0, /* src_mask */ | |
1005 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
1006 | false), /* pcrel_offset */ | |
1007 | ||
1008 | HOWTO (R_SH_RELATIVE64, /* type */ | |
1009 | 0, /* rightshift */ | |
1010 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1011 | 64, /* bitsize */ | |
1012 | false, /* pc_relative */ | |
1013 | 0, /* bitpos */ | |
1014 | complain_overflow_dont, /* complain_on_overflow */ | |
1015 | bfd_elf_generic_reloc, /* special_function */ | |
1016 | "R_SH_RELATIVE64", /* name */ | |
1017 | false, /* partial_inplace */ | |
1018 | 0, /* src_mask */ | |
1019 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
1020 | false), /* pcrel_offset */ | |
1021 | ||
1022 | EMPTY_HOWTO (197), | |
1023 | EMPTY_HOWTO (198), | |
1024 | EMPTY_HOWTO (199), | |
1025 | EMPTY_HOWTO (200), | |
1026 | EMPTY_HOWTO (201), | |
1027 | EMPTY_HOWTO (202), | |
1028 | EMPTY_HOWTO (203), | |
1029 | EMPTY_HOWTO (204), | |
1030 | EMPTY_HOWTO (205), | |
1031 | EMPTY_HOWTO (206), | |
1032 | EMPTY_HOWTO (207), | |
1033 | EMPTY_HOWTO (208), | |
1034 | EMPTY_HOWTO (209), | |
1035 | EMPTY_HOWTO (210), | |
1036 | EMPTY_HOWTO (211), | |
1037 | EMPTY_HOWTO (212), | |
1038 | EMPTY_HOWTO (213), | |
1039 | EMPTY_HOWTO (214), | |
1040 | EMPTY_HOWTO (215), | |
1041 | EMPTY_HOWTO (216), | |
1042 | EMPTY_HOWTO (217), | |
1043 | EMPTY_HOWTO (218), | |
1044 | EMPTY_HOWTO (219), | |
1045 | EMPTY_HOWTO (220), | |
1046 | EMPTY_HOWTO (221), | |
1047 | EMPTY_HOWTO (222), | |
1048 | EMPTY_HOWTO (223), | |
1049 | EMPTY_HOWTO (224), | |
1050 | EMPTY_HOWTO (225), | |
1051 | EMPTY_HOWTO (226), | |
1052 | EMPTY_HOWTO (227), | |
1053 | EMPTY_HOWTO (228), | |
1054 | EMPTY_HOWTO (229), | |
1055 | EMPTY_HOWTO (230), | |
1056 | EMPTY_HOWTO (231), | |
1057 | EMPTY_HOWTO (232), | |
1058 | EMPTY_HOWTO (233), | |
1059 | EMPTY_HOWTO (234), | |
1060 | EMPTY_HOWTO (235), | |
1061 | EMPTY_HOWTO (236), | |
1062 | EMPTY_HOWTO (237), | |
1063 | EMPTY_HOWTO (238), | |
1064 | EMPTY_HOWTO (239), | |
1065 | EMPTY_HOWTO (240), | |
1066 | EMPTY_HOWTO (241), | |
1067 | ||
1068 | /* Relocations for SHmedia code. None of these are partial_inplace or | |
1069 | use the field being relocated. */ | |
1070 | ||
1071 | /* The assembler will generate this reloc before a block of SHmedia | |
1072 | instructions. A section should be processed as assuming it contains | |
1073 | data, unless this reloc is seen. Note that a block of SHcompact | |
1074 | instructions are instead preceded by R_SH_CODE. | |
1075 | This is currently not implemented, but should be used for SHmedia | |
1076 | linker relaxation. */ | |
1077 | HOWTO (R_SH_SHMEDIA_CODE, /* type */ | |
1078 | 0, /* rightshift */ | |
1079 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1080 | 0, /* bitsize */ | |
1081 | false, /* pc_relative */ | |
1082 | 0, /* bitpos */ | |
1083 | complain_overflow_unsigned, /* complain_on_overflow */ | |
1084 | sh_elf64_ignore_reloc, /* special_function */ | |
1085 | "R_SH_SHMEDIA_CODE", /* name */ | |
1086 | false, /* partial_inplace */ | |
1087 | 0, /* src_mask */ | |
1088 | 0, /* dst_mask */ | |
1089 | false), /* pcrel_offset */ | |
1090 | ||
1091 | /* The assembler will generate this reloc at a PTA or PTB instruction, | |
1092 | and the linker checks the right type of target, or changes a PTA to a | |
1093 | PTB, if the original insn was PT. */ | |
1094 | HOWTO (R_SH_PT_16, /* type */ | |
1095 | 2, /* rightshift */ | |
1096 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1097 | 18, /* bitsize */ | |
1098 | true, /* pc_relative */ | |
1099 | 10, /* bitpos */ | |
1100 | complain_overflow_signed, /* complain_on_overflow */ | |
1101 | bfd_elf_generic_reloc, /* special_function */ | |
1102 | "R_SH_PT_16", /* name */ | |
1103 | false, /* partial_inplace */ | |
1104 | 0, /* src_mask */ | |
1105 | 0x3fffc00, /* dst_mask */ | |
1106 | true), /* pcrel_offset */ | |
1107 | ||
1108 | /* Used in unexpanded MOVI. */ | |
1109 | HOWTO (R_SH_IMMS16, /* type */ | |
1110 | 0, /* rightshift */ | |
1111 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1112 | 16, /* bitsize */ | |
1113 | false, /* pc_relative */ | |
1114 | 10, /* bitpos */ | |
1115 | complain_overflow_signed, /* complain_on_overflow */ | |
1116 | bfd_elf_generic_reloc, /* special_function */ | |
1117 | "R_SH_IMMS16", /* name */ | |
1118 | false, /* partial_inplace */ | |
1119 | 0, /* src_mask */ | |
1120 | 0x3fffc00, /* dst_mask */ | |
1121 | false), /* pcrel_offset */ | |
1122 | ||
1123 | /* Used in SHORI. */ | |
1124 | HOWTO (R_SH_IMMU16, /* type */ | |
1125 | 0, /* rightshift */ | |
1126 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1127 | 16, /* bitsize */ | |
1128 | false, /* pc_relative */ | |
1129 | 10, /* bitpos */ | |
1130 | complain_overflow_unsigned, /* complain_on_overflow */ | |
1131 | bfd_elf_generic_reloc, /* special_function */ | |
1132 | "R_SH_IMMU16", /* name */ | |
1133 | false, /* partial_inplace */ | |
1134 | 0, /* src_mask */ | |
1135 | 0x3fffc00, /* dst_mask */ | |
1136 | false), /* pcrel_offset */ | |
1137 | ||
1138 | /* Used in MOVI and SHORI (x & 65536). */ | |
1139 | HOWTO (R_SH_IMM_LOW16, /* type */ | |
1140 | 0, /* rightshift */ | |
1141 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1142 | 64, /* bitsize */ | |
1143 | false, /* pc_relative */ | |
1144 | 10, /* bitpos */ | |
1145 | complain_overflow_dont, /* complain_on_overflow */ | |
1146 | bfd_elf_generic_reloc, /* special_function */ | |
1147 | "R_SH_IMM_LOW16", /* name */ | |
1148 | false, /* partial_inplace */ | |
1149 | 0, /* src_mask */ | |
1150 | 0x3fffc00, /* dst_mask */ | |
1151 | false), /* pcrel_offset */ | |
1152 | ||
1153 | /* Used in MOVI and SHORI ((x - $) & 65536). */ | |
1154 | HOWTO (R_SH_IMM_LOW16_PCREL, /* type */ | |
1155 | 0, /* rightshift */ | |
1156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1157 | 64, /* bitsize */ | |
1158 | true, /* pc_relative */ | |
1159 | 10, /* bitpos */ | |
1160 | complain_overflow_dont, /* complain_on_overflow */ | |
1161 | bfd_elf_generic_reloc, /* special_function */ | |
1162 | "R_SH_IMM_LOW16_PCREL", /* name */ | |
1163 | false, /* partial_inplace */ | |
1164 | 0, /* src_mask */ | |
1165 | 0x3fffc00, /* dst_mask */ | |
1166 | true), /* pcrel_offset */ | |
1167 | ||
1168 | /* Used in MOVI and SHORI ((x >> 16) & 65536). */ | |
1169 | HOWTO (R_SH_IMM_MEDLOW16, /* type */ | |
1170 | 16, /* rightshift */ | |
1171 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1172 | 64, /* bitsize */ | |
1173 | false, /* pc_relative */ | |
1174 | 10, /* bitpos */ | |
1175 | complain_overflow_dont, /* complain_on_overflow */ | |
1176 | bfd_elf_generic_reloc, /* special_function */ | |
1177 | "R_SH_IMM_MEDLOW16", /* name */ | |
1178 | false, /* partial_inplace */ | |
1179 | 0, /* src_mask */ | |
1180 | 0x3fffc00, /* dst_mask */ | |
1181 | false), /* pcrel_offset */ | |
1182 | ||
1183 | /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */ | |
1184 | HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */ | |
1185 | 16, /* rightshift */ | |
1186 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1187 | 64, /* bitsize */ | |
1188 | true, /* pc_relative */ | |
1189 | 10, /* bitpos */ | |
1190 | complain_overflow_dont, /* complain_on_overflow */ | |
1191 | bfd_elf_generic_reloc, /* special_function */ | |
1192 | "R_SH_IMM_MEDLOW16_PCREL", /* name */ | |
1193 | false, /* partial_inplace */ | |
1194 | 0, /* src_mask */ | |
1195 | 0x3fffc00, /* dst_mask */ | |
1196 | true), /* pcrel_offset */ | |
1197 | ||
1198 | /* Used in MOVI and SHORI ((x >> 32) & 65536). */ | |
1199 | HOWTO (R_SH_IMM_MEDHI16, /* type */ | |
1200 | 32, /* rightshift */ | |
1201 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1202 | 64, /* bitsize */ | |
1203 | false, /* pc_relative */ | |
1204 | 10, /* bitpos */ | |
1205 | complain_overflow_dont, /* complain_on_overflow */ | |
1206 | bfd_elf_generic_reloc, /* special_function */ | |
1207 | "R_SH_IMM_MEDHI16", /* name */ | |
1208 | false, /* partial_inplace */ | |
1209 | 0, /* src_mask */ | |
1210 | 0x3fffc00, /* dst_mask */ | |
1211 | false), /* pcrel_offset */ | |
1212 | ||
1213 | /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */ | |
1214 | HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */ | |
1215 | 32, /* rightshift */ | |
1216 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1217 | 64, /* bitsize */ | |
1218 | true, /* pc_relative */ | |
1219 | 10, /* bitpos */ | |
1220 | complain_overflow_dont, /* complain_on_overflow */ | |
1221 | bfd_elf_generic_reloc, /* special_function */ | |
1222 | "R_SH_IMM_MEDHI16_PCREL", /* name */ | |
1223 | false, /* partial_inplace */ | |
1224 | 0, /* src_mask */ | |
1225 | 0x3fffc00, /* dst_mask */ | |
1226 | true), /* pcrel_offset */ | |
1227 | ||
1228 | /* Used in MOVI and SHORI ((x >> 48) & 65536). */ | |
1229 | HOWTO (R_SH_IMM_HI16, /* type */ | |
1230 | 48, /* rightshift */ | |
1231 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1232 | 64, /* bitsize */ | |
1233 | false, /* pc_relative */ | |
1234 | 10, /* bitpos */ | |
1235 | complain_overflow_dont, /* complain_on_overflow */ | |
1236 | bfd_elf_generic_reloc, /* special_function */ | |
1237 | "R_SH_IMM_HI16", /* name */ | |
1238 | false, /* partial_inplace */ | |
1239 | 0, /* src_mask */ | |
1240 | 0x3fffc00, /* dst_mask */ | |
1241 | false), /* pcrel_offset */ | |
1242 | ||
1243 | /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */ | |
1244 | HOWTO (R_SH_IMM_HI16_PCREL, /* type */ | |
1245 | 48, /* rightshift */ | |
1246 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1247 | 64, /* bitsize */ | |
1248 | true, /* pc_relative */ | |
1249 | 10, /* bitpos */ | |
1250 | complain_overflow_dont, /* complain_on_overflow */ | |
1251 | bfd_elf_generic_reloc, /* special_function */ | |
1252 | "R_SH_IMM_HI16_PCREL", /* name */ | |
1253 | false, /* partial_inplace */ | |
1254 | 0, /* src_mask */ | |
1255 | 0x3fffc00, /* dst_mask */ | |
1256 | true), /* pcrel_offset */ | |
1257 | ||
1258 | /* For the .uaquad pseudo. */ | |
1259 | HOWTO (R_SH_64, /* type */ | |
1260 | 0, /* rightshift */ | |
1261 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1262 | 64, /* bitsize */ | |
1263 | false, /* pc_relative */ | |
1264 | 0, /* bitpos */ | |
1265 | complain_overflow_dont, /* complain_on_overflow */ | |
1266 | bfd_elf_generic_reloc, /* special_function */ | |
1267 | "R_SH_64", /* name */ | |
1268 | false, /* partial_inplace */ | |
1269 | 0, /* src_mask */ | |
1270 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
1271 | false), /* pcrel_offset */ | |
1272 | ||
1273 | /* For the .uaquad pseudo, (x - $). */ | |
1274 | HOWTO (R_SH_64_PCREL, /* type */ | |
1275 | 48, /* rightshift */ | |
1276 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1277 | 64, /* bitsize */ | |
1278 | true, /* pc_relative */ | |
1279 | 10, /* bitpos */ | |
1280 | complain_overflow_dont, /* complain_on_overflow */ | |
1281 | bfd_elf_generic_reloc, /* special_function */ | |
1282 | "R_SH_64_PCREL", /* name */ | |
1283 | false, /* partial_inplace */ | |
1284 | 0, /* src_mask */ | |
1285 | ((bfd_vma) 0) - 1, /* dst_mask */ | |
1286 | true), /* pcrel_offset */ | |
1287 | ||
1288 | }; | |
1289 | ||
1290 | /* This function is used for relocs which are only used for relaxing, | |
1291 | which the linker should otherwise ignore. */ | |
1292 | ||
1293 | static bfd_reloc_status_type | |
1294 | sh_elf64_ignore_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1295 | output_bfd, error_message) | |
1296 | bfd *abfd ATTRIBUTE_UNUSED; | |
1297 | arelent *reloc_entry; | |
1298 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1299 | PTR data ATTRIBUTE_UNUSED; | |
1300 | asection *input_section; | |
1301 | bfd *output_bfd; | |
1302 | char **error_message ATTRIBUTE_UNUSED; | |
1303 | { | |
1304 | if (output_bfd != NULL) | |
1305 | reloc_entry->address += input_section->output_offset; | |
1306 | return bfd_reloc_ok; | |
1307 | } | |
1308 | ||
1309 | /* This function is used for normal relocs. This used to be like the COFF | |
1310 | function, and is almost certainly incorrect for other ELF targets. | |
1311 | ||
1312 | See sh_elf_reloc in elf32-sh.c for the original. */ | |
1313 | ||
1314 | static bfd_reloc_status_type | |
1315 | sh_elf64_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
1316 | error_message) | |
1317 | bfd *abfd; | |
1318 | arelent *reloc_entry; | |
1319 | asymbol *symbol_in; | |
1320 | PTR data; | |
1321 | asection *input_section; | |
1322 | bfd *output_bfd; | |
1323 | char **error_message ATTRIBUTE_UNUSED; | |
1324 | { | |
1325 | unsigned long insn; | |
1326 | bfd_vma sym_value; | |
1327 | enum elf_sh_reloc_type r_type; | |
1328 | bfd_vma addr = reloc_entry->address; | |
1329 | bfd_byte *hit_data = addr + (bfd_byte *) data; | |
1330 | ||
1331 | r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; | |
1332 | ||
1333 | if (output_bfd != NULL) | |
1334 | { | |
1335 | /* Partial linking--do nothing. */ | |
1336 | reloc_entry->address += input_section->output_offset; | |
1337 | return bfd_reloc_ok; | |
1338 | } | |
1339 | ||
1340 | if (symbol_in != NULL | |
1341 | && bfd_is_und_section (symbol_in->section)) | |
1342 | return bfd_reloc_undefined; | |
1343 | ||
1344 | if (bfd_is_com_section (symbol_in->section)) | |
1345 | sym_value = 0; | |
1346 | else | |
1347 | sym_value = (symbol_in->value + | |
1348 | symbol_in->section->output_section->vma + | |
1349 | symbol_in->section->output_offset); | |
1350 | ||
1351 | switch (r_type) | |
1352 | { | |
1353 | case R_SH_DIR32: | |
1354 | insn = bfd_get_32 (abfd, hit_data); | |
1355 | insn += sym_value + reloc_entry->addend; | |
1356 | bfd_put_32 (abfd, insn, hit_data); | |
1357 | break; | |
1358 | ||
1359 | default: | |
1360 | abort (); | |
1361 | break; | |
1362 | } | |
1363 | ||
1364 | return bfd_reloc_ok; | |
1365 | } | |
1366 | ||
1367 | /* This structure is used to map BFD reloc codes to SH ELF relocs. */ | |
1368 | ||
1369 | struct elf_reloc_map | |
1370 | { | |
1371 | bfd_reloc_code_real_type bfd_reloc_val; | |
1372 | unsigned char elf_reloc_val; | |
1373 | }; | |
1374 | ||
1375 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
1376 | ||
1377 | static const struct elf_reloc_map sh64_reloc_map[] = | |
1378 | { | |
1379 | { BFD_RELOC_NONE, R_SH_NONE }, | |
1380 | { BFD_RELOC_32, R_SH_DIR32 }, | |
1381 | { BFD_RELOC_CTOR, R_SH_DIR32 }, | |
1382 | { BFD_RELOC_32_PCREL, R_SH_REL32 }, | |
1383 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
1384 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
1385 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
1386 | { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, | |
1387 | { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, | |
1388 | { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, | |
1389 | { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, | |
1390 | { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, | |
1391 | { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, | |
1392 | { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, | |
1393 | { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, | |
1394 | { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, | |
1395 | { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, | |
1396 | { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, | |
1397 | { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, | |
1398 | { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, | |
1399 | { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, | |
1400 | { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, | |
1401 | { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, | |
1402 | { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, | |
1403 | { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, | |
1404 | { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, | |
1405 | { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, | |
1406 | { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, | |
1407 | { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, | |
1408 | { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, | |
1409 | { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, | |
1410 | { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, | |
1411 | { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, | |
1412 | { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, | |
1413 | { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, | |
1414 | { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, | |
1415 | { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, | |
1416 | { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, | |
1417 | { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, | |
1418 | { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, | |
1419 | { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, | |
1420 | { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, | |
1421 | { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, | |
1422 | { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, | |
1423 | { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, | |
1424 | { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, | |
1425 | { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, | |
1426 | { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, | |
1427 | { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, | |
1428 | { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, | |
1429 | { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, | |
1430 | { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, | |
1431 | { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, | |
1432 | { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, | |
1433 | { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, | |
1434 | { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, | |
1435 | { BFD_RELOC_64, R_SH_64 }, | |
1436 | { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, | |
1437 | }; | |
1438 | ||
1439 | /* Given a BFD reloc code, return the howto structure for the | |
1440 | corresponding SH ELf reloc. */ | |
1441 | ||
1442 | static reloc_howto_type * | |
1443 | sh_elf64_reloc_type_lookup (abfd, code) | |
1444 | bfd *abfd ATTRIBUTE_UNUSED; | |
1445 | bfd_reloc_code_real_type code; | |
1446 | { | |
1447 | unsigned int i; | |
1448 | ||
1449 | for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
1450 | { | |
1451 | if (sh64_reloc_map[i].bfd_reloc_val == code) | |
1452 | return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val]; | |
1453 | } | |
1454 | ||
1455 | return NULL; | |
1456 | } | |
1457 | ||
1458 | /* Given an ELF reloc, fill in the howto field of a relent. | |
1459 | ||
1460 | See sh_elf_info_to_howto in elf32-sh.c for the original. */ | |
1461 | ||
1462 | static void | |
1463 | sh_elf64_info_to_howto (abfd, cache_ptr, dst) | |
1464 | bfd *abfd ATTRIBUTE_UNUSED; | |
1465 | arelent *cache_ptr; | |
1466 | Elf_Internal_Rela *dst; | |
1467 | { | |
1468 | unsigned int r; | |
1469 | ||
1470 | r = ELF64_R_TYPE (dst->r_info); | |
1471 | ||
1472 | BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL); | |
1473 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); | |
1474 | BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2); | |
1475 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32); | |
1476 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); | |
1477 | ||
1478 | cache_ptr->howto = &sh_elf64_howto_table[r]; | |
1479 | } | |
1480 | ||
1481 | /* Relocate an SH ELF section. | |
1482 | ||
1483 | See sh_elf_info_to_howto in elf32-sh.c for the original. */ | |
1484 | ||
1485 | static boolean | |
1486 | sh_elf64_relocate_section (output_bfd, info, input_bfd, input_section, | |
1487 | contents, relocs, local_syms, local_sections) | |
1488 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
1489 | struct bfd_link_info *info; | |
1490 | bfd *input_bfd; | |
1491 | asection *input_section; | |
1492 | bfd_byte *contents; | |
1493 | Elf_Internal_Rela *relocs; | |
1494 | Elf_Internal_Sym *local_syms; | |
1495 | asection **local_sections; | |
1496 | { | |
1497 | Elf_Internal_Shdr *symtab_hdr; | |
1498 | struct elf_link_hash_entry **sym_hashes; | |
1499 | Elf_Internal_Rela *rel, *relend; | |
1500 | bfd *dynobj; | |
1501 | bfd_vma *local_got_offsets; | |
1502 | asection *sgot; | |
1503 | asection *sgotplt; | |
1504 | asection *splt; | |
1505 | asection *sreloc; | |
1506 | bfd_vma disp, dropped; | |
1507 | ||
1508 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1509 | sym_hashes = elf_sym_hashes (input_bfd); | |
1510 | dynobj = elf_hash_table (info)->dynobj; | |
1511 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1512 | ||
1513 | sgot = NULL; | |
1514 | sgotplt = NULL; | |
1515 | splt = NULL; | |
1516 | sreloc = NULL; | |
1517 | ||
1518 | rel = relocs; | |
1519 | relend = relocs + input_section->reloc_count; | |
1520 | for (; rel < relend; rel++) | |
1521 | { | |
1522 | int r_type; | |
1523 | reloc_howto_type *howto; | |
1524 | unsigned long r_symndx; | |
1525 | Elf_Internal_Sym *sym; | |
1526 | asection *sec; | |
1527 | struct elf_link_hash_entry *h; | |
1528 | bfd_vma relocation; | |
1529 | bfd_vma addend = (bfd_vma)0; | |
1530 | bfd_reloc_status_type r; | |
1531 | int seen_stt_datalabel = 0; | |
1532 | ||
1533 | r_symndx = ELF64_R_SYM (rel->r_info); | |
1534 | ||
1535 | r_type = ELF64_R_TYPE (rel->r_info); | |
1536 | ||
1537 | if (r_type == (int) R_SH_NONE) | |
1538 | continue; | |
1539 | ||
1540 | if (r_type < 0 | |
1541 | || r_type > R_SH_64_PCREL | |
1542 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC | |
1543 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) | |
1544 | || (r_type >= (int) R_SH_DIR8WPN | |
1545 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_2) | |
1546 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_3 | |
1547 | && r_type <= R_SH_GOTPLT32) | |
1548 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 | |
1549 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)) | |
1550 | { | |
1551 | bfd_set_error (bfd_error_bad_value); | |
1552 | return false; | |
1553 | } | |
1554 | ||
1555 | howto = sh_elf64_howto_table + r_type; | |
1556 | ||
1557 | /* This is a final link. */ | |
1558 | h = NULL; | |
1559 | sym = NULL; | |
1560 | sec = NULL; | |
1561 | if (r_symndx < symtab_hdr->sh_info) | |
1562 | { | |
1563 | sym = local_syms + r_symndx; | |
1564 | sec = local_sections[r_symndx]; | |
1565 | relocation = ((sec->output_section->vma | |
1566 | + sec->output_offset | |
1567 | + sym->st_value) | |
1568 | | ((sym->st_other & STO_SH5_ISA32) != 0)); | |
1569 | ||
1570 | /* A local symbol never has STO_SH5_ISA32, so we don't need | |
1571 | datalabel processing here. Make sure this does not change | |
1572 | without notice. */ | |
1573 | if ((sym->st_other & STO_SH5_ISA32) != 0) | |
1574 | ((*info->callbacks->reloc_dangerous) | |
1575 | (info, | |
1576 | _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), | |
1577 | input_bfd, input_section, rel->r_offset)); | |
1578 | ||
1579 | if (info->relocateable) | |
1580 | { | |
1581 | /* This is a relocateable link. We don't have to change | |
1582 | anything, unless the reloc is against a section symbol, | |
1583 | in which case we have to adjust according to where the | |
1584 | section symbol winds up in the output section. */ | |
1585 | sym = local_syms + r_symndx; | |
1586 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1587 | goto final_link_relocate; | |
1588 | ||
1589 | continue; | |
1590 | } | |
1591 | } | |
1592 | else | |
1593 | { | |
1594 | /* Section symbols are never (?) placed in the hash table, so | |
1595 | we can just ignore hash relocations when creating a | |
1596 | relocateable object file. */ | |
1597 | if (info->relocateable) | |
1598 | continue; | |
1599 | ||
1600 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1601 | while (h->root.type == bfd_link_hash_indirect | |
1602 | || h->root.type == bfd_link_hash_warning) | |
1603 | { | |
1604 | /* If the reference passes a symbol marked with | |
1605 | STT_DATALABEL, then any STO_SH5_ISA32 on the final value | |
1606 | doesn't count. */ | |
1607 | seen_stt_datalabel |= h->type == STT_DATALABEL; | |
1608 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1609 | } | |
1610 | ||
1611 | if (h->root.type == bfd_link_hash_defined | |
1612 | || h->root.type == bfd_link_hash_defweak) | |
1613 | { | |
1614 | sec = h->root.u.def.section; | |
1615 | /* In these cases, we don't need the relocation value. | |
1616 | We check specially because in some obscure cases | |
1617 | sec->output_section will be NULL. */ | |
1618 | if (r_type == R_SH_GOTPC_LOW16 | |
1619 | || r_type == R_SH_GOTPC_MEDLOW16 | |
1620 | || r_type == R_SH_GOTPC_MEDHI16 | |
1621 | || r_type == R_SH_GOTPC_HI16 | |
1622 | || ((r_type == R_SH_PLT_LOW16 | |
1623 | || r_type == R_SH_PLT_MEDLOW16 | |
1624 | || r_type == R_SH_PLT_MEDHI16 | |
1625 | || r_type == R_SH_PLT_HI16) | |
1626 | && h->plt.offset != (bfd_vma) -1) | |
1627 | || ((r_type == R_SH_GOT_LOW16 | |
1628 | || r_type == R_SH_GOT_MEDLOW16 | |
1629 | || r_type == R_SH_GOT_MEDHI16 | |
1630 | || r_type == R_SH_GOT_HI16) | |
1631 | && elf_hash_table (info)->dynamic_sections_created | |
1632 | && (! info->shared | |
1633 | || (! info->symbolic && h->dynindx != -1) | |
1634 | || (h->elf_link_hash_flags | |
1635 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1636 | /* The cases above are those in which relocation is | |
1637 | overwritten in the switch block below. The cases | |
1638 | below are those in which we must defer relocation | |
1639 | to run-time, because we can't resolve absolute | |
1640 | addresses when creating a shared library. */ | |
1641 | || (info->shared | |
1642 | && ((! info->symbolic && h->dynindx != -1) | |
1643 | || (h->elf_link_hash_flags | |
1644 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1645 | && ((r_type == R_SH_64 | |
1646 | && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
1647 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)) | |
1648 | || r_type == R_SH_64_PCREL) | |
1649 | && ((input_section->flags & SEC_ALLOC) != 0 | |
1650 | /* DWARF will emit R_SH_DIR32 relocations in its | |
1651 | sections against symbols defined externally | |
1652 | in shared libraries. We can't do anything | |
1653 | with them here. */ | |
1654 | || (input_section->flags & SEC_DEBUGGING) != 0))) | |
1655 | relocation = 0; | |
1656 | else if (sec->output_section == NULL) | |
1657 | { | |
1658 | (*_bfd_error_handler) | |
1659 | (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), | |
1660 | bfd_get_filename (input_bfd), h->root.root.string, | |
1661 | bfd_get_section_name (input_bfd, input_section)); | |
1662 | relocation = 0; | |
1663 | } | |
1664 | else | |
1665 | relocation = ((h->root.u.def.value | |
1666 | + sec->output_section->vma | |
1667 | + sec->output_offset) | |
1668 | /* A STO_SH5_ISA32 causes a "bitor 1" to the | |
1669 | symbol value, unless we've seen | |
1670 | STT_DATALABEL on the way to it. */ | |
1671 | | ((h->other & STO_SH5_ISA32) != 0 | |
1672 | && ! seen_stt_datalabel)); | |
1673 | } | |
1674 | else if (h->root.type == bfd_link_hash_undefweak) | |
1675 | relocation = 0; | |
1676 | else if (info->shared && !info->symbolic && !info->no_undefined) | |
1677 | relocation = 0; | |
1678 | else | |
1679 | { | |
1680 | if (! ((*info->callbacks->undefined_symbol) | |
1681 | (info, h->root.root.string, input_bfd, | |
1682 | input_section, rel->r_offset, true))) | |
1683 | return false; | |
1684 | relocation = 0; | |
1685 | } | |
1686 | } | |
1687 | ||
1688 | disp = (relocation | |
1689 | - input_section->output_section->vma | |
1690 | - input_section->output_offset | |
1691 | - rel->r_offset); | |
1692 | dropped = 0; | |
1693 | switch ((int)r_type) | |
1694 | { | |
1695 | case R_SH_PT_16: dropped = disp & 2; break; | |
1696 | case R_SH_DIR10SW: dropped = disp & 1; break; | |
1697 | case R_SH_DIR10SL: dropped = disp & 3; break; | |
1698 | case R_SH_DIR10SQ: dropped = disp & 7; break; | |
1699 | } | |
1700 | if (dropped != 0) | |
1701 | { | |
1702 | (*_bfd_error_handler) | |
1703 | (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"), | |
1704 | bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation); | |
1705 | bfd_set_error (bfd_error_bad_value); | |
1706 | return false; | |
1707 | } | |
1708 | switch ((int)r_type) | |
1709 | { | |
1710 | case R_SH_64: | |
1711 | case R_SH_64_PCREL: | |
1712 | if (info->shared | |
1713 | && (input_section->flags & SEC_ALLOC) != 0 | |
1714 | && (r_type != R_SH_64_PCREL | |
1715 | || (h != NULL | |
1716 | && h->dynindx != -1 | |
1717 | && (! info->symbolic | |
1718 | || (h->elf_link_hash_flags | |
1719 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1720 | { | |
1721 | Elf_Internal_Rela outrel; | |
1722 | boolean skip, relocate; | |
1723 | ||
1724 | /* When generating a shared object, these relocations | |
1725 | are copied into the output file to be resolved at run | |
1726 | time. */ | |
1727 | ||
1728 | if (sreloc == NULL) | |
1729 | { | |
1730 | const char *name; | |
1731 | ||
1732 | name = (bfd_elf_string_from_elf_section | |
1733 | (input_bfd, | |
1734 | elf_elfheader (input_bfd)->e_shstrndx, | |
1735 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1736 | if (name == NULL) | |
1737 | return false; | |
1738 | ||
1739 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1740 | && strcmp (bfd_get_section_name (input_bfd, | |
1741 | input_section), | |
1742 | name + 5) == 0); | |
1743 | ||
1744 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1745 | BFD_ASSERT (sreloc != NULL); | |
1746 | } | |
1747 | ||
1748 | skip = false; | |
0bb2d96a | 1749 | relocate = false; |
fbca6ad9 AO |
1750 | |
1751 | outrel.r_offset | |
518313c3 AO |
1752 | = _bfd_elf_section_offset (output_bfd, info, |
1753 | input_section, rel->r_offset); | |
fbca6ad9 AO |
1754 | |
1755 | if (outrel.r_offset == (bfd_vma) -1) | |
1756 | skip = true; | |
0fb19cbc | 1757 | else if (outrel.r_offset == (bfd_vma) -2) |
0bb2d96a | 1758 | skip = true, relocate = true; |
fbca6ad9 AO |
1759 | |
1760 | outrel.r_offset += (input_section->output_section->vma | |
1761 | + input_section->output_offset); | |
1762 | ||
1763 | if (skip) | |
0bb2d96a | 1764 | memset (&outrel, 0, sizeof outrel); |
fbca6ad9 AO |
1765 | else if (r_type == R_SH_64_PCREL) |
1766 | { | |
1767 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
fbca6ad9 AO |
1768 | outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL); |
1769 | outrel.r_addend = rel->r_addend; | |
1770 | } | |
1771 | else | |
1772 | { | |
1773 | /* h->dynindx may be -1 if this symbol was marked to | |
1774 | become local. */ | |
1775 | if (h == NULL | |
1776 | || ((info->symbolic || h->dynindx == -1) | |
1777 | && (h->elf_link_hash_flags | |
1778 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
1779 | { | |
1780 | relocate = true; | |
1781 | outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); | |
1782 | outrel.r_addend = relocation + rel->r_addend; | |
1783 | } | |
1784 | else | |
1785 | { | |
1786 | BFD_ASSERT (h->dynindx != -1); | |
fbca6ad9 AO |
1787 | outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64); |
1788 | outrel.r_addend = relocation + rel->r_addend; | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, | |
1793 | (((Elf64_External_Rela *) | |
1794 | sreloc->contents) | |
1795 | + sreloc->reloc_count)); | |
1796 | ++sreloc->reloc_count; | |
1797 | ||
1798 | /* If this reloc is against an external symbol, we do | |
1799 | not want to fiddle with the addend. Otherwise, we | |
1800 | need to include the symbol value so that it becomes | |
1801 | an addend for the dynamic reloc. */ | |
1802 | if (! relocate) | |
1803 | continue; | |
1804 | } | |
1805 | else if (r_type == R_SH_64) | |
1806 | addend = rel->r_addend; | |
1807 | goto final_link_relocate; | |
1808 | ||
1809 | case R_SH_GOTPLT_LOW16: | |
1810 | case R_SH_GOTPLT_MEDLOW16: | |
1811 | case R_SH_GOTPLT_MEDHI16: | |
1812 | case R_SH_GOTPLT_HI16: | |
1813 | case R_SH_GOTPLT10BY4: | |
1814 | case R_SH_GOTPLT10BY8: | |
1815 | /* Relocation is to the entry for this symbol in the | |
1816 | procedure linkage table. */ | |
1817 | ||
1818 | if (h == NULL | |
1819 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
1820 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
1821 | || ! info->shared | |
1822 | || info->symbolic | |
1823 | || h->dynindx == -1 | |
1824 | || h->plt.offset == (bfd_vma) -1 | |
1825 | || h->got.offset != (bfd_vma) -1) | |
1826 | goto force_got; | |
1827 | ||
1828 | /* Relocation is to the entry for this symbol in the global | |
1829 | offset table extension for the procedure linkage table. */ | |
1830 | if (sgotplt == NULL) | |
1831 | { | |
1832 | sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1833 | BFD_ASSERT (sgotplt != NULL); | |
1834 | } | |
1835 | ||
1836 | relocation = (sgotplt->output_offset | |
1837 | + ((h->plt.offset / elf_sh64_sizeof_plt (info) | |
1838 | - 1 + 3) * 8)); | |
1839 | ||
1840 | relocation -= GOT_BIAS; | |
1841 | ||
1842 | goto final_link_relocate; | |
1843 | ||
1844 | force_got: | |
1845 | case R_SH_GOT_LOW16: | |
1846 | case R_SH_GOT_MEDLOW16: | |
1847 | case R_SH_GOT_MEDHI16: | |
1848 | case R_SH_GOT_HI16: | |
1849 | case R_SH_GOT10BY4: | |
1850 | case R_SH_GOT10BY8: | |
1851 | /* Relocation is to the entry for this symbol in the global | |
1852 | offset table. */ | |
1853 | if (sgot == NULL) | |
1854 | { | |
1855 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1856 | BFD_ASSERT (sgot != NULL); | |
1857 | } | |
1858 | ||
1859 | if (h != NULL) | |
1860 | { | |
1861 | bfd_vma off; | |
1862 | ||
1863 | off = h->got.offset; | |
1864 | if (seen_stt_datalabel) | |
1865 | { | |
1866 | struct elf_sh64_link_hash_entry *hsh; | |
1867 | ||
1868 | hsh = (struct elf_sh64_link_hash_entry *)h; | |
1869 | off = hsh->datalabel_got_offset; | |
1870 | } | |
1871 | BFD_ASSERT (off != (bfd_vma) -1); | |
1872 | ||
1873 | if (! elf_hash_table (info)->dynamic_sections_created | |
1874 | || (info->shared | |
1875 | && (info->symbolic || h->dynindx == -1 | |
1876 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
1877 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) | |
1878 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
1879 | { | |
1880 | /* This is actually a static link, or it is a | |
1881 | -Bsymbolic link and the symbol is defined | |
1882 | locally, or the symbol was forced to be local | |
1883 | because of a version file. We must initialize | |
1884 | this entry in the global offset table. Since the | |
1885 | offset must always be a multiple of 4, we use the | |
1886 | least significant bit to record whether we have | |
1887 | initialized it already. | |
1888 | ||
1889 | When doing a dynamic link, we create a .rela.got | |
1890 | relocation entry to initialize the value. This | |
1891 | is done in the finish_dynamic_symbol routine. */ | |
1892 | if ((off & 1) != 0) | |
1893 | off &= ~1; | |
1894 | else | |
1895 | { | |
1896 | bfd_put_64 (output_bfd, relocation, | |
1897 | sgot->contents + off); | |
1898 | if (seen_stt_datalabel) | |
1899 | { | |
1900 | struct elf_sh64_link_hash_entry *hsh; | |
1901 | ||
1902 | hsh = (struct elf_sh64_link_hash_entry *)h; | |
1903 | hsh->datalabel_got_offset |= 1; | |
1904 | } | |
1905 | else | |
1906 | h->got.offset |= 1; | |
1907 | } | |
1908 | } | |
1909 | ||
1910 | relocation = sgot->output_offset + off; | |
1911 | } | |
1912 | else | |
1913 | { | |
1914 | bfd_vma off; | |
1915 | ||
1916 | if (rel->r_addend) | |
1917 | { | |
1918 | BFD_ASSERT (local_got_offsets != NULL | |
1919 | && (local_got_offsets[symtab_hdr->sh_info | |
1920 | + r_symndx] | |
1921 | != (bfd_vma) -1)); | |
1922 | ||
1923 | off = local_got_offsets[symtab_hdr->sh_info | |
1924 | + r_symndx]; | |
1925 | } | |
1926 | else | |
1927 | { | |
1928 | BFD_ASSERT (local_got_offsets != NULL | |
1929 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
1930 | ||
1931 | off = local_got_offsets[r_symndx]; | |
1932 | } | |
1933 | ||
1934 | /* The offset must always be a multiple of 8. We use | |
1935 | the least significant bit to record whether we have | |
1936 | already generated the necessary reloc. */ | |
1937 | if ((off & 1) != 0) | |
1938 | off &= ~1; | |
1939 | else | |
1940 | { | |
1941 | bfd_put_64 (output_bfd, relocation, sgot->contents + off); | |
1942 | ||
1943 | if (info->shared) | |
1944 | { | |
1945 | asection *srelgot; | |
1946 | Elf_Internal_Rela outrel; | |
1947 | ||
1948 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1949 | BFD_ASSERT (srelgot != NULL); | |
1950 | ||
1951 | outrel.r_offset = (sgot->output_section->vma | |
1952 | + sgot->output_offset | |
1953 | + off); | |
1954 | outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); | |
1955 | outrel.r_addend = relocation; | |
1956 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, | |
1957 | (((Elf64_External_Rela *) | |
1958 | srelgot->contents) | |
1959 | + srelgot->reloc_count)); | |
1960 | ++srelgot->reloc_count; | |
1961 | } | |
1962 | ||
1963 | if (rel->r_addend) | |
1964 | local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; | |
1965 | else | |
1966 | local_got_offsets[r_symndx] |= 1; | |
1967 | } | |
1968 | ||
1969 | relocation = sgot->output_offset + off; | |
1970 | } | |
1971 | ||
1972 | relocation -= GOT_BIAS; | |
1973 | ||
1974 | goto final_link_relocate; | |
1975 | ||
1976 | case R_SH_GOTOFF_LOW16: | |
1977 | case R_SH_GOTOFF_MEDLOW16: | |
1978 | case R_SH_GOTOFF_MEDHI16: | |
1979 | case R_SH_GOTOFF_HI16: | |
1980 | /* Relocation is relative to the start of the global offset | |
1981 | table. */ | |
1982 | ||
1983 | if (sgot == NULL) | |
1984 | { | |
1985 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1986 | BFD_ASSERT (sgot != NULL); | |
1987 | } | |
1988 | ||
1989 | /* Note that sgot->output_offset is not involved in this | |
1990 | calculation. We always want the start of .got. If we | |
1991 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
1992 | permitted by the ABI, we might have to change this | |
1993 | calculation. */ | |
1994 | relocation -= sgot->output_section->vma; | |
1995 | ||
1996 | relocation -= GOT_BIAS; | |
1997 | ||
1998 | addend = rel->r_addend; | |
1999 | ||
2000 | goto final_link_relocate; | |
2001 | ||
2002 | case R_SH_GOTPC_LOW16: | |
2003 | case R_SH_GOTPC_MEDLOW16: | |
2004 | case R_SH_GOTPC_MEDHI16: | |
2005 | case R_SH_GOTPC_HI16: | |
2006 | /* Use global offset table as symbol value. */ | |
2007 | ||
2008 | if (sgot == NULL) | |
2009 | { | |
2010 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2011 | BFD_ASSERT (sgot != NULL); | |
2012 | } | |
2013 | ||
2014 | relocation = sgot->output_section->vma; | |
2015 | ||
2016 | relocation += GOT_BIAS; | |
2017 | ||
2018 | addend = rel->r_addend; | |
2019 | ||
2020 | goto final_link_relocate; | |
2021 | ||
2022 | case R_SH_PLT_LOW16: | |
2023 | case R_SH_PLT_MEDLOW16: | |
2024 | case R_SH_PLT_MEDHI16: | |
2025 | case R_SH_PLT_HI16: | |
2026 | /* Relocation is to the entry for this symbol in the | |
2027 | procedure linkage table. */ | |
2028 | ||
2029 | /* Resolve a PLT reloc against a local symbol directly, | |
2030 | without using the procedure linkage table. */ | |
2031 | if (h == NULL) | |
2032 | goto final_link_relocate; | |
2033 | ||
2034 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
2035 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) | |
2036 | goto final_link_relocate; | |
2037 | ||
2038 | if (h->plt.offset == (bfd_vma) -1) | |
2039 | { | |
2040 | /* We didn't make a PLT entry for this symbol. This | |
2041 | happens when statically linking PIC code, or when | |
2042 | using -Bsymbolic. */ | |
2043 | goto final_link_relocate; | |
2044 | } | |
2045 | ||
2046 | if (splt == NULL) | |
2047 | { | |
2048 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2049 | BFD_ASSERT (splt != NULL); | |
2050 | } | |
2051 | ||
2052 | relocation = (splt->output_section->vma | |
2053 | + splt->output_offset | |
2054 | + h->plt.offset); | |
2055 | relocation++; | |
2056 | ||
2057 | addend = rel->r_addend; | |
2058 | ||
2059 | goto final_link_relocate; | |
2060 | ||
2061 | case R_SH_DIR32: | |
2062 | case R_SH_SHMEDIA_CODE: | |
2063 | case R_SH_PT_16: | |
2064 | case R_SH_DIR5U: | |
2065 | case R_SH_DIR6S: | |
2066 | case R_SH_DIR6U: | |
2067 | case R_SH_DIR10S: | |
2068 | case R_SH_DIR10SW: | |
2069 | case R_SH_DIR10SL: | |
2070 | case R_SH_DIR10SQ: | |
2071 | case R_SH_IMMS16: | |
2072 | case R_SH_IMMU16: | |
2073 | case R_SH_IMM_LOW16: | |
2074 | case R_SH_IMM_LOW16_PCREL: | |
2075 | case R_SH_IMM_MEDLOW16: | |
2076 | case R_SH_IMM_MEDLOW16_PCREL: | |
2077 | case R_SH_IMM_MEDHI16: | |
2078 | case R_SH_IMM_MEDHI16_PCREL: | |
2079 | case R_SH_IMM_HI16: | |
2080 | case R_SH_IMM_HI16_PCREL: | |
2081 | addend = rel->r_addend; | |
2082 | /* Fall through. */ | |
2083 | case R_SH_REL32: | |
2084 | final_link_relocate: | |
2085 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2086 | contents, rel->r_offset, | |
2087 | relocation, addend); | |
2088 | break; | |
2089 | ||
2090 | default: | |
2091 | bfd_set_error (bfd_error_bad_value); | |
2092 | return false; | |
2093 | ||
2094 | } | |
2095 | ||
2096 | if (r != bfd_reloc_ok) | |
2097 | { | |
2098 | switch (r) | |
2099 | { | |
2100 | default: | |
2101 | case bfd_reloc_outofrange: | |
2102 | abort (); | |
2103 | case bfd_reloc_overflow: | |
2104 | { | |
2105 | const char *name; | |
2106 | ||
2107 | if (h != NULL) | |
2108 | name = h->root.root.string; | |
2109 | else | |
2110 | { | |
2111 | name = (bfd_elf_string_from_elf_section | |
2112 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
2113 | if (name == NULL) | |
2114 | return false; | |
2115 | if (*name == '\0') | |
2116 | name = bfd_section_name (input_bfd, sec); | |
2117 | } | |
2118 | if (! ((*info->callbacks->reloc_overflow) | |
2119 | (info, name, howto->name, (bfd_vma) 0, | |
2120 | input_bfd, input_section, rel->r_offset))) | |
2121 | return false; | |
2122 | } | |
2123 | break; | |
2124 | } | |
2125 | } | |
2126 | } | |
2127 | ||
2128 | return true; | |
2129 | } | |
2130 | ||
2131 | /* This is a version of bfd_generic_get_relocated_section_contents | |
2132 | that uses sh_elf64_relocate_section. | |
2133 | ||
2134 | See sh_elf_relocate_section in elf32-sh.c for the original. */ | |
2135 | ||
2136 | static bfd_byte * | |
2137 | sh_elf64_get_relocated_section_contents (output_bfd, link_info, link_order, | |
2138 | data, relocateable, symbols) | |
2139 | bfd *output_bfd; | |
2140 | struct bfd_link_info *link_info; | |
2141 | struct bfd_link_order *link_order; | |
2142 | bfd_byte *data; | |
2143 | boolean relocateable; | |
2144 | asymbol **symbols; | |
2145 | { | |
2146 | Elf_Internal_Shdr *symtab_hdr; | |
2147 | Elf_Internal_Shdr *shndx_hdr; | |
2148 | asection *input_section = link_order->u.indirect.section; | |
2149 | bfd *input_bfd = input_section->owner; | |
2150 | asection **sections = NULL; | |
2151 | Elf_Internal_Rela *internal_relocs = NULL; | |
2152 | Elf64_External_Sym *external_syms = NULL; | |
2153 | Elf_External_Sym_Shndx *shndx_buf = NULL; | |
2154 | Elf_External_Sym_Shndx *shndx; | |
2155 | Elf_Internal_Sym *internal_syms = NULL; | |
2156 | ||
2157 | /* We only need to handle the case of relaxing, or of having a | |
2158 | particular set of section contents, specially. */ | |
2159 | if (relocateable | |
2160 | || elf_section_data (input_section)->this_hdr.contents == NULL) | |
2161 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
2162 | link_order, data, | |
2163 | relocateable, | |
2164 | symbols); | |
2165 | ||
2166 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2167 | shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; | |
2168 | ||
2169 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
2170 | input_section->_raw_size); | |
2171 | ||
2172 | if ((input_section->flags & SEC_RELOC) != 0 | |
2173 | && input_section->reloc_count > 0) | |
2174 | { | |
2175 | Elf_Internal_Sym *isymp; | |
2176 | asection **secpp; | |
2177 | Elf64_External_Sym *esym, *esymend; | |
2178 | bfd_size_type amt; | |
2179 | ||
2180 | if (symtab_hdr->contents != NULL) | |
2181 | external_syms = (Elf64_External_Sym *) symtab_hdr->contents; | |
2182 | else | |
2183 | { | |
2184 | amt = symtab_hdr->sh_info; | |
2185 | amt *= sizeof (Elf64_External_Sym); | |
2186 | ||
2187 | external_syms = (Elf64_External_Sym *) bfd_malloc (amt); | |
2188 | if (external_syms == NULL && symtab_hdr->sh_info > 0) | |
2189 | goto error_return; | |
2190 | ||
2191 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
2192 | || (bfd_bread ((PTR) external_syms, amt, input_bfd) != amt)) | |
2193 | goto error_return; | |
2194 | } | |
2195 | ||
2196 | if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0) | |
2197 | { | |
2198 | amt = symtab_hdr->sh_info; | |
2199 | amt *= sizeof (Elf_External_Sym_Shndx); | |
2200 | ||
2201 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); | |
2202 | if (shndx_buf == NULL) | |
2203 | goto error_return; | |
2204 | ||
2205 | if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
2206 | || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt) | |
2207 | goto error_return; | |
2208 | } | |
2209 | ||
2210 | internal_relocs = (_bfd_elf64_link_read_relocs | |
2211 | (input_bfd, input_section, (PTR) NULL, | |
2212 | (Elf_Internal_Rela *) NULL, false)); | |
2213 | if (internal_relocs == NULL) | |
2214 | goto error_return; | |
2215 | ||
2216 | internal_syms = ((Elf_Internal_Sym *) | |
2217 | bfd_malloc (symtab_hdr->sh_info | |
2218 | * sizeof (Elf_Internal_Sym))); | |
2219 | if (internal_syms == NULL && symtab_hdr->sh_info > 0) | |
2220 | goto error_return; | |
2221 | ||
2222 | sections = (asection **) bfd_malloc (symtab_hdr->sh_info | |
2223 | * sizeof (asection *)); | |
2224 | if (sections == NULL && symtab_hdr->sh_info > 0) | |
2225 | goto error_return; | |
2226 | ||
2227 | isymp = internal_syms; | |
2228 | secpp = sections; | |
2229 | esym = external_syms; | |
2230 | esymend = esym + symtab_hdr->sh_info; | |
2231 | shndx = shndx_buf; | |
2232 | for (; esym < esymend; | |
2233 | ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL)) | |
2234 | { | |
2235 | asection *isec; | |
2236 | ||
2237 | bfd_elf64_swap_symbol_in (input_bfd, esym, shndx, isymp); | |
2238 | ||
2239 | if (isymp->st_shndx == SHN_UNDEF) | |
2240 | isec = bfd_und_section_ptr; | |
2241 | else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) | |
2242 | isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); | |
2243 | else if (isymp->st_shndx == SHN_ABS) | |
2244 | isec = bfd_abs_section_ptr; | |
2245 | else if (isymp->st_shndx == SHN_COMMON) | |
2246 | isec = bfd_com_section_ptr; | |
2247 | else | |
2248 | { | |
2249 | /* Who knows? */ | |
2250 | isec = NULL; | |
2251 | } | |
2252 | ||
2253 | *secpp = isec; | |
2254 | } | |
2255 | ||
2256 | if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd, | |
2257 | input_section, data, internal_relocs, | |
2258 | internal_syms, sections)) | |
2259 | goto error_return; | |
2260 | ||
2261 | if (sections != NULL) | |
2262 | free (sections); | |
2263 | sections = NULL; | |
2264 | if (internal_syms != NULL) | |
2265 | free (internal_syms); | |
2266 | internal_syms = NULL; | |
2267 | if (external_syms != NULL && symtab_hdr->contents == NULL) | |
2268 | free (external_syms); | |
2269 | external_syms = NULL; | |
2270 | if (internal_relocs != elf_section_data (input_section)->relocs) | |
2271 | free (internal_relocs); | |
2272 | internal_relocs = NULL; | |
2273 | } | |
2274 | ||
2275 | return data; | |
2276 | ||
2277 | error_return: | |
2278 | if (internal_relocs != NULL | |
2279 | && internal_relocs != elf_section_data (input_section)->relocs) | |
2280 | free (internal_relocs); | |
2281 | if (external_syms != NULL && symtab_hdr->contents == NULL) | |
2282 | free (external_syms); | |
2283 | if (internal_syms != NULL) | |
2284 | free (internal_syms); | |
2285 | if (sections != NULL) | |
2286 | free (sections); | |
2287 | return NULL; | |
2288 | } | |
2289 | ||
2290 | /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */ | |
2291 | ||
2292 | boolean | |
2293 | sh64_elf64_fake_sections (output_bfd, elf_section_hdr, asect) | |
2294 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
2295 | Elf_Internal_Shdr *elf_section_hdr; | |
2296 | asection *asect; | |
2297 | { | |
2298 | /* Code sections can only contain SH64 code, so mark them as such. */ | |
2299 | if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE) | |
2300 | elf_section_hdr->sh_flags |= SHF_SH5_ISA32; | |
2301 | ||
2302 | return true; | |
2303 | } | |
2304 | ||
2305 | static boolean | |
2306 | sh_elf64_set_mach_from_flags (abfd) | |
2307 | bfd *abfd; | |
2308 | { | |
2309 | flagword flags = elf_elfheader (abfd)->e_flags; | |
2310 | ||
2311 | switch (flags & EF_SH_MACH_MASK) | |
2312 | { | |
2313 | case EF_SH5: | |
2314 | /* Just one, but keep the switch construct to make additions easy. */ | |
2315 | bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5); | |
2316 | break; | |
2317 | ||
2318 | default: | |
2319 | bfd_set_error (bfd_error_wrong_format); | |
2320 | return false; | |
2321 | } | |
2322 | return true; | |
2323 | } | |
2324 | ||
2325 | /* Function to keep SH64 specific file flags. | |
2326 | ||
2327 | See sh64_elf_set_private_flags in elf32-sh64.c for the original. */ | |
2328 | ||
2329 | static boolean | |
2330 | sh_elf64_set_private_flags (abfd, flags) | |
2331 | bfd * abfd; | |
2332 | flagword flags; | |
2333 | { | |
2334 | BFD_ASSERT (! elf_flags_init (abfd) | |
2335 | || elf_elfheader (abfd)->e_flags == flags); | |
2336 | ||
2337 | elf_elfheader (abfd)->e_flags = flags; | |
2338 | elf_flags_init (abfd) = true; | |
2339 | return sh_elf64_set_mach_from_flags (abfd); | |
2340 | } | |
2341 | ||
2342 | /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with | |
2343 | code, to keep attributes the same as for SHmedia in 32-bit ELF. */ | |
2344 | ||
2345 | static boolean | |
2346 | sh_elf64_copy_private_data_internal (ibfd, obfd) | |
2347 | bfd * ibfd; | |
2348 | bfd * obfd; | |
2349 | { | |
2350 | Elf_Internal_Shdr **o_shdrp; | |
2351 | asection *isec; | |
2352 | asection *osec; | |
2353 | ||
2354 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2355 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2356 | return true; | |
2357 | ||
2358 | o_shdrp = elf_elfsections (obfd); | |
2359 | for (osec = obfd->sections; osec; osec = osec->next) | |
2360 | { | |
2361 | int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx; | |
2362 | for (isec = ibfd->sections; isec; isec = isec->next) | |
2363 | { | |
2364 | if (strcmp (osec->name, isec->name) == 0) | |
2365 | { | |
2366 | /* Note that we're not disallowing mixing data and code. */ | |
2367 | if ((elf_section_data (isec)->this_hdr.sh_flags | |
2368 | & SHF_SH5_ISA32) != 0) | |
2369 | o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32; | |
2370 | break; | |
2371 | } | |
2372 | } | |
2373 | } | |
2374 | ||
2375 | return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); | |
2376 | } | |
2377 | ||
2378 | static boolean | |
2379 | sh_elf64_copy_private_data (ibfd, obfd) | |
2380 | bfd * ibfd; | |
2381 | bfd * obfd; | |
2382 | { | |
2383 | return sh_elf64_copy_private_data_internal (ibfd, obfd); | |
2384 | } | |
2385 | ||
2386 | static boolean | |
2387 | sh_elf64_merge_private_data (ibfd, obfd) | |
2388 | bfd *ibfd; | |
2389 | bfd *obfd; | |
2390 | { | |
2391 | flagword old_flags, new_flags; | |
2392 | ||
2393 | if (_bfd_generic_verify_endian_match (ibfd, obfd) == false) | |
2394 | return false; | |
2395 | ||
2396 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2397 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2398 | return true; | |
2399 | ||
2400 | if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd)) | |
2401 | { | |
2402 | const char *msg; | |
2403 | ||
2404 | if (bfd_get_arch_size (ibfd) == 32 | |
2405 | && bfd_get_arch_size (obfd) == 64) | |
2406 | msg = _("%s: compiled as 32-bit object and %s is 64-bit"); | |
2407 | else if (bfd_get_arch_size (ibfd) == 64 | |
2408 | && bfd_get_arch_size (obfd) == 32) | |
2409 | msg = _("%s: compiled as 64-bit object and %s is 32-bit"); | |
2410 | else | |
2411 | msg = _("%s: object size does not match that of target %s"); | |
2412 | ||
2413 | (*_bfd_error_handler) (msg, bfd_get_filename (ibfd), | |
2414 | bfd_get_filename (obfd)); | |
2415 | bfd_set_error (bfd_error_wrong_format); | |
2416 | return false; | |
2417 | } | |
2418 | ||
2419 | old_flags = elf_elfheader (obfd)->e_flags; | |
2420 | new_flags = elf_elfheader (ibfd)->e_flags; | |
2421 | if (! elf_flags_init (obfd)) | |
2422 | { | |
2423 | /* This happens when ld starts out with a 'blank' output file. */ | |
2424 | elf_flags_init (obfd) = true; | |
2425 | elf_elfheader (obfd)->e_flags = old_flags = new_flags; | |
2426 | } | |
2427 | /* We don't allow linking in anything else than SH64 code, and since | |
2428 | this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code | |
2429 | here as things change. */ | |
2430 | else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5) | |
2431 | { | |
2432 | (*_bfd_error_handler) | |
2433 | ("%s: does not use the SH64 64-bit ABI as previous modules do", | |
2434 | bfd_get_filename (ibfd)); | |
2435 | bfd_set_error (bfd_error_bad_value); | |
2436 | return false; | |
2437 | } | |
2438 | ||
2439 | sh_elf64_copy_private_data_internal (ibfd, obfd); | |
2440 | ||
2441 | /* I can't think of anything sane other than old_flags being EF_SH5 and | |
2442 | that we need to preserve that. */ | |
2443 | elf_elfheader (obfd)->e_flags = old_flags; | |
2444 | ||
2445 | return sh_elf64_set_mach_from_flags (obfd); | |
2446 | } | |
2447 | ||
2448 | /* Return the section that should be marked against GC for a given | |
2449 | relocation. */ | |
2450 | ||
2451 | static asection * | |
2452 | sh_elf64_gc_mark_hook (abfd, info, rel, h, sym) | |
2453 | bfd *abfd; | |
2454 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
2455 | Elf_Internal_Rela *rel; | |
2456 | struct elf_link_hash_entry *h; | |
2457 | Elf_Internal_Sym *sym; | |
2458 | { | |
2459 | if (h != NULL) | |
2460 | { | |
2461 | switch (ELF64_R_TYPE (rel->r_info)) | |
2462 | { | |
2463 | case R_SH_GNU_VTINHERIT: | |
2464 | case R_SH_GNU_VTENTRY: | |
2465 | break; | |
2466 | ||
2467 | default: | |
2468 | switch (h->root.type) | |
2469 | { | |
2470 | case bfd_link_hash_defined: | |
2471 | case bfd_link_hash_defweak: | |
2472 | return h->root.u.def.section; | |
2473 | ||
2474 | case bfd_link_hash_common: | |
2475 | return h->root.u.c.p->section; | |
2476 | ||
2477 | default: | |
2478 | break; | |
2479 | } | |
2480 | } | |
2481 | } | |
2482 | else | |
2483 | { | |
2484 | if (!(elf_bad_symtab (abfd) | |
2485 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
2486 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
2487 | && sym->st_shndx != SHN_COMMON)) | |
2488 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
2489 | } | |
2490 | ||
2491 | return NULL; | |
2492 | } | |
2493 | ||
2494 | /* Update the got entry reference counts for the section being removed. */ | |
2495 | ||
2496 | static boolean | |
2497 | sh_elf64_gc_sweep_hook (abfd, info, sec, relocs) | |
2498 | bfd *abfd ATTRIBUTE_UNUSED; | |
2499 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
2500 | asection *sec ATTRIBUTE_UNUSED; | |
2501 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
2502 | { | |
2503 | /* No got and plt entries for 64-bit SH at present. */ | |
2504 | return true; | |
2505 | } | |
2506 | ||
2507 | /* Look through the relocs for a section during the first phase. | |
2508 | Since we don't do .gots or .plts, we just need to consider the | |
2509 | virtual table relocs for gc. */ | |
2510 | ||
2511 | static boolean | |
2512 | sh_elf64_check_relocs (abfd, info, sec, relocs) | |
2513 | bfd *abfd; | |
2514 | struct bfd_link_info *info; | |
2515 | asection *sec; | |
2516 | const Elf_Internal_Rela *relocs; | |
2517 | { | |
2518 | Elf_Internal_Shdr *symtab_hdr; | |
2519 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
2520 | const Elf_Internal_Rela *rel; | |
2521 | const Elf_Internal_Rela *rel_end; | |
2522 | bfd *dynobj; | |
2523 | bfd_vma *local_got_offsets; | |
2524 | asection *sgot; | |
2525 | asection *srelgot; | |
2526 | asection *sreloc; | |
2527 | ||
2528 | sgot = NULL; | |
2529 | srelgot = NULL; | |
2530 | sreloc = NULL; | |
2531 | ||
2532 | if (info->relocateable) | |
2533 | return true; | |
2534 | ||
2535 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2536 | sym_hashes = elf_sym_hashes (abfd); | |
2537 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym); | |
2538 | if (!elf_bad_symtab (abfd)) | |
2539 | sym_hashes_end -= symtab_hdr->sh_info; | |
2540 | ||
2541 | dynobj = elf_hash_table (info)->dynobj; | |
2542 | local_got_offsets = elf_local_got_offsets (abfd); | |
2543 | ||
2544 | rel_end = relocs + sec->reloc_count; | |
2545 | for (rel = relocs; rel < rel_end; rel++) | |
2546 | { | |
2547 | struct elf_link_hash_entry *h; | |
2548 | unsigned long r_symndx; | |
2549 | ||
2550 | r_symndx = ELF64_R_SYM (rel->r_info); | |
2551 | if (r_symndx < symtab_hdr->sh_info) | |
2552 | h = NULL; | |
2553 | else | |
2554 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2555 | ||
2556 | /* Some relocs require a global offset table. */ | |
2557 | if (dynobj == NULL) | |
2558 | { | |
2559 | switch (ELF64_R_TYPE (rel->r_info)) | |
2560 | { | |
2561 | case R_SH_GOTPLT_LOW16: | |
2562 | case R_SH_GOTPLT_MEDLOW16: | |
2563 | case R_SH_GOTPLT_MEDHI16: | |
2564 | case R_SH_GOTPLT_HI16: | |
2565 | case R_SH_GOTPLT10BY4: | |
2566 | case R_SH_GOTPLT10BY8: | |
2567 | case R_SH_GOT_LOW16: | |
2568 | case R_SH_GOT_MEDLOW16: | |
2569 | case R_SH_GOT_MEDHI16: | |
2570 | case R_SH_GOT_HI16: | |
2571 | case R_SH_GOT10BY4: | |
2572 | case R_SH_GOT10BY8: | |
2573 | case R_SH_GOTOFF_LOW16: | |
2574 | case R_SH_GOTOFF_MEDLOW16: | |
2575 | case R_SH_GOTOFF_MEDHI16: | |
2576 | case R_SH_GOTOFF_HI16: | |
2577 | case R_SH_GOTPC_LOW16: | |
2578 | case R_SH_GOTPC_MEDLOW16: | |
2579 | case R_SH_GOTPC_MEDHI16: | |
2580 | case R_SH_GOTPC_HI16: | |
2581 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
2582 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
2583 | return false; | |
2584 | break; | |
2585 | ||
2586 | default: | |
2587 | break; | |
2588 | } | |
2589 | } | |
2590 | ||
2591 | switch (ELF64_R_TYPE (rel->r_info)) | |
2592 | { | |
2593 | /* This relocation describes the C++ object vtable hierarchy. | |
2594 | Reconstruct it for later use during GC. */ | |
2595 | case R_SH_GNU_VTINHERIT: | |
2596 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2597 | return false; | |
2598 | break; | |
2599 | ||
2600 | /* This relocation describes which C++ vtable entries are actually | |
2601 | used. Record for later use during GC. */ | |
2602 | case R_SH_GNU_VTENTRY: | |
2603 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
2604 | return false; | |
2605 | break; | |
2606 | ||
2607 | force_got: | |
2608 | case R_SH_GOT_LOW16: | |
2609 | case R_SH_GOT_MEDLOW16: | |
2610 | case R_SH_GOT_MEDHI16: | |
2611 | case R_SH_GOT_HI16: | |
2612 | case R_SH_GOT10BY4: | |
2613 | case R_SH_GOT10BY8: | |
2614 | /* This symbol requires a global offset table entry. */ | |
2615 | ||
2616 | if (sgot == NULL) | |
2617 | { | |
2618 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2619 | BFD_ASSERT (sgot != NULL); | |
2620 | } | |
2621 | ||
2622 | if (srelgot == NULL | |
2623 | && (h != NULL || info->shared)) | |
2624 | { | |
2625 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
2626 | if (srelgot == NULL) | |
2627 | { | |
2628 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
2629 | if (srelgot == NULL | |
2630 | || ! bfd_set_section_flags (dynobj, srelgot, | |
2631 | (SEC_ALLOC | |
2632 | | SEC_LOAD | |
2633 | | SEC_HAS_CONTENTS | |
2634 | | SEC_IN_MEMORY | |
2635 | | SEC_LINKER_CREATED | |
2636 | | SEC_READONLY)) | |
2637 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) | |
2638 | return false; | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | if (h != NULL) | |
2643 | { | |
2644 | if (h->type == STT_DATALABEL) | |
2645 | { | |
2646 | struct elf_sh64_link_hash_entry *hsh; | |
2647 | ||
2648 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2649 | hsh = (struct elf_sh64_link_hash_entry *)h; | |
2650 | if (hsh->datalabel_got_offset != (bfd_vma) -1) | |
2651 | break; | |
2652 | ||
2653 | hsh->datalabel_got_offset = sgot->_raw_size; | |
2654 | } | |
2655 | else | |
2656 | { | |
2657 | if (h->got.offset != (bfd_vma) -1) | |
2658 | { | |
2659 | /* We have already allocated space in the .got. */ | |
2660 | break; | |
2661 | } | |
2662 | h->got.offset = sgot->_raw_size; | |
2663 | } | |
2664 | ||
2665 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2666 | if (h->dynindx == -1) | |
2667 | { | |
2668 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
2669 | return false; | |
2670 | } | |
2671 | ||
2672 | srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
2673 | } | |
2674 | else | |
2675 | { | |
2676 | /* This is a global offset table entry for a local | |
2677 | symbol. */ | |
2678 | if (local_got_offsets == NULL) | |
2679 | { | |
2680 | size_t size; | |
2681 | register unsigned int i; | |
2682 | ||
2683 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
2684 | /* Reserve space for both the datalabel and | |
2685 | codelabel local GOT offsets. */ | |
2686 | size *= 2; | |
2687 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
2688 | if (local_got_offsets == NULL) | |
2689 | return false; | |
2690 | elf_local_got_offsets (abfd) = local_got_offsets; | |
2691 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
2692 | local_got_offsets[i] = (bfd_vma) -1; | |
2693 | for (; i < 2 * symtab_hdr->sh_info; i++) | |
2694 | local_got_offsets[i] = (bfd_vma) -1; | |
2695 | } | |
2696 | if ((rel->r_addend & 1) != 0) | |
2697 | { | |
2698 | if (local_got_offsets[symtab_hdr->sh_info | |
2699 | + r_symndx] != (bfd_vma) -1) | |
2700 | { | |
2701 | /* We have already allocated space in the .got. */ | |
2702 | break; | |
2703 | } | |
2704 | local_got_offsets[symtab_hdr->sh_info | |
2705 | + r_symndx] = sgot->_raw_size; | |
2706 | } | |
2707 | else | |
2708 | { | |
2709 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
2710 | { | |
2711 | /* We have already allocated space in the .got. */ | |
2712 | break; | |
2713 | } | |
2714 | local_got_offsets[r_symndx] = sgot->_raw_size; | |
2715 | } | |
2716 | ||
2717 | if (info->shared) | |
2718 | { | |
2719 | /* If we are generating a shared object, we need to | |
2720 | output a R_SH_RELATIVE reloc so that the dynamic | |
2721 | linker can adjust this GOT entry. */ | |
2722 | srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
2723 | } | |
2724 | } | |
2725 | ||
2726 | sgot->_raw_size += 8; | |
2727 | ||
2728 | break; | |
2729 | ||
2730 | case R_SH_GOTPLT_LOW16: | |
2731 | case R_SH_GOTPLT_MEDLOW16: | |
2732 | case R_SH_GOTPLT_MEDHI16: | |
2733 | case R_SH_GOTPLT_HI16: | |
2734 | case R_SH_GOTPLT10BY4: | |
2735 | case R_SH_GOTPLT10BY8: | |
2736 | /* If this is a local symbol, we resolve it directly without | |
2737 | creating a procedure linkage table entry. */ | |
2738 | ||
2739 | if (h == NULL | |
2740 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
2741 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
2742 | || ! info->shared | |
2743 | || info->symbolic | |
2744 | || h->dynindx == -1 | |
2745 | || h->got.offset != (bfd_vma) -1) | |
2746 | goto force_got; | |
2747 | ||
2748 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2749 | if (h->dynindx == -1) | |
2750 | { | |
2751 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
2752 | return false; | |
2753 | } | |
2754 | ||
2755 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
2756 | ||
2757 | break; | |
2758 | ||
2759 | case R_SH_PLT_LOW16: | |
2760 | case R_SH_PLT_MEDLOW16: | |
2761 | case R_SH_PLT_MEDHI16: | |
2762 | case R_SH_PLT_HI16: | |
2763 | /* This symbol requires a procedure linkage table entry. We | |
2764 | actually build the entry in adjust_dynamic_symbol, | |
2765 | because this might be a case of linking PIC code which is | |
2766 | never referenced by a dynamic object, in which case we | |
2767 | don't need to generate a procedure linkage table entry | |
2768 | after all. */ | |
2769 | ||
2770 | /* If this is a local symbol, we resolve it directly without | |
2771 | creating a procedure linkage table entry. */ | |
2772 | if (h == NULL) | |
2773 | continue; | |
2774 | ||
2775 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
2776 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) | |
2777 | break; | |
2778 | ||
2779 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
2780 | ||
2781 | break; | |
2782 | ||
2783 | case R_SH_64: | |
2784 | case R_SH_64_PCREL: | |
2785 | if (h != NULL) | |
2786 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
2787 | ||
2788 | /* If we are creating a shared library, and this is a reloc | |
2789 | against a global symbol, or a non PC relative reloc | |
2790 | against a local symbol, then we need to copy the reloc | |
2791 | into the shared library. However, if we are linking with | |
2792 | -Bsymbolic, we do not need to copy a reloc against a | |
2793 | global symbol which is defined in an object we are | |
2794 | including in the link (i.e., DEF_REGULAR is set). At | |
2795 | this point we have not seen all the input files, so it is | |
2796 | possible that DEF_REGULAR is not set now but will be set | |
2797 | later (it is never cleared). We account for that | |
2798 | possibility below by storing information in the | |
2799 | pcrel_relocs_copied field of the hash table entry. */ | |
2800 | if (info->shared | |
2801 | && (sec->flags & SEC_ALLOC) != 0 | |
2802 | && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL | |
2803 | || (h != NULL | |
2804 | && (! info->symbolic | |
2805 | || (h->elf_link_hash_flags | |
2806 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
2807 | { | |
2808 | /* When creating a shared object, we must copy these | |
2809 | reloc types into the output file. We create a reloc | |
2810 | section in dynobj and make room for this reloc. */ | |
2811 | if (sreloc == NULL) | |
2812 | { | |
2813 | const char *name; | |
2814 | ||
2815 | name = (bfd_elf_string_from_elf_section | |
2816 | (abfd, | |
2817 | elf_elfheader (abfd)->e_shstrndx, | |
2818 | elf_section_data (sec)->rel_hdr.sh_name)); | |
2819 | if (name == NULL) | |
2820 | return false; | |
2821 | ||
2822 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
2823 | && strcmp (bfd_get_section_name (abfd, sec), | |
2824 | name + 5) == 0); | |
2825 | ||
2826 | sreloc = bfd_get_section_by_name (dynobj, name); | |
2827 | if (sreloc == NULL) | |
2828 | { | |
2829 | flagword flags; | |
2830 | ||
2831 | sreloc = bfd_make_section (dynobj, name); | |
2832 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
2833 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
2834 | if ((sec->flags & SEC_ALLOC) != 0) | |
2835 | flags |= SEC_ALLOC | SEC_LOAD; | |
2836 | if (sreloc == NULL | |
2837 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
2838 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
2839 | return false; | |
2840 | } | |
2841 | } | |
2842 | ||
2843 | sreloc->_raw_size += sizeof (Elf64_External_Rela); | |
2844 | ||
2845 | /* If we are linking with -Bsymbolic, and this is a | |
2846 | global symbol, we count the number of PC relative | |
2847 | relocations we have entered for this symbol, so that | |
2848 | we can discard them again if the symbol is later | |
2849 | defined by a regular object. Note that this function | |
2850 | is only called if we are using an elf_sh linker | |
2851 | hash table, which means that h is really a pointer to | |
2852 | an elf_sh_link_hash_entry. */ | |
2853 | if (h != NULL && info->symbolic | |
2854 | && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL) | |
2855 | { | |
2856 | struct elf_sh64_link_hash_entry *eh; | |
2857 | struct elf_sh64_pcrel_relocs_copied *p; | |
2858 | ||
2859 | eh = (struct elf_sh64_link_hash_entry *) h; | |
2860 | ||
2861 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) | |
2862 | if (p->section == sreloc) | |
2863 | break; | |
2864 | ||
2865 | if (p == NULL) | |
2866 | { | |
2867 | p = ((struct elf_sh64_pcrel_relocs_copied *) | |
2868 | bfd_alloc (dynobj, sizeof *p)); | |
2869 | if (p == NULL) | |
2870 | return false; | |
2871 | p->next = eh->pcrel_relocs_copied; | |
2872 | eh->pcrel_relocs_copied = p; | |
2873 | p->section = sreloc; | |
2874 | p->count = 0; | |
2875 | } | |
2876 | ||
2877 | ++p->count; | |
2878 | } | |
2879 | } | |
2880 | ||
2881 | break; | |
2882 | } | |
2883 | } | |
2884 | ||
2885 | return true; | |
2886 | } | |
2887 | ||
2888 | static int | |
2889 | sh64_elf64_get_symbol_type (elf_sym, type) | |
2890 | Elf_Internal_Sym * elf_sym; | |
2891 | int type; | |
2892 | { | |
2893 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL) | |
2894 | return STT_DATALABEL; | |
2895 | ||
2896 | return type; | |
2897 | } | |
2898 | ||
2899 | /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c. | |
2900 | Either file can presumably exist without the other, but do not differ | |
2901 | in elf-size-ness. How to share? | |
2902 | ||
2903 | Hook called by the linker routine which adds symbols from an object | |
2904 | file. We must make indirect symbols for undefined symbols marked with | |
2905 | STT_DATALABEL, so relocations passing them will pick up that attribute | |
2906 | and neutralize STO_SH5_ISA32 found on the symbol definition. | |
2907 | ||
2908 | There is a problem, though: We want to fill in the hash-table entry for | |
2909 | this symbol and signal to the caller that no further processing is | |
2910 | needed. But we don't have the index for this hash-table entry. We | |
2911 | rely here on that the current entry is the first hash-entry with NULL, | |
2912 | which seems brittle. Also, iterating over the hash-table to find that | |
2913 | entry is a linear operation on the number of symbols in this input | |
2914 | file, and this function should take constant time, so that's not good | |
2915 | too. Only comfort is that DataLabel references should only be found in | |
2916 | hand-written assembly code and thus be rare. FIXME: Talk maintainers | |
2917 | into adding an option to elf_add_symbol_hook (preferably) for the index | |
2918 | or the hash entry, alternatively adding the index to Elf_Internal_Sym | |
2919 | (not so good). */ | |
2920 | ||
2921 | static boolean | |
2922 | sh64_elf64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
2923 | bfd *abfd; | |
2924 | struct bfd_link_info *info; | |
2925 | const Elf_Internal_Sym *sym; | |
2926 | const char **namep; | |
2927 | flagword *flagsp ATTRIBUTE_UNUSED; | |
2928 | asection **secp; | |
2929 | bfd_vma *valp; | |
2930 | { | |
2931 | /* We want to do this for relocatable as well as final linking. */ | |
2932 | if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) | |
2933 | { | |
2934 | struct elf_link_hash_entry *h; | |
2935 | ||
2936 | /* For relocateable links, we register the DataLabel sym in its own | |
2937 | right, and tweak the name when it's output. Otherwise, we make | |
2938 | an indirect symbol of it. */ | |
2939 | flagword flags | |
2940 | = info->relocateable || info->emitrelocations | |
2941 | ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT; | |
2942 | ||
2943 | char *dl_name | |
2944 | = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX)); | |
2945 | struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd); | |
2946 | ||
2947 | BFD_ASSERT (sym_hash != NULL); | |
2948 | ||
2949 | /* Allocation may fail. */ | |
2950 | if (dl_name == NULL) | |
2951 | return false; | |
2952 | ||
2953 | strcpy (dl_name, *namep); | |
2954 | strcat (dl_name, DATALABEL_SUFFIX); | |
2955 | ||
2956 | h = (struct elf_link_hash_entry *) | |
2957 | bfd_link_hash_lookup (info->hash, dl_name, false, false, false); | |
2958 | ||
2959 | if (h == NULL) | |
2960 | { | |
2961 | /* No previous datalabel symbol. Make one. */ | |
2962 | if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name, | |
2963 | flags, *secp, *valp, | |
2964 | *namep, false, | |
2965 | get_elf_backend_data (abfd)->collect, | |
2966 | (struct bfd_link_hash_entry **) &h)) | |
2967 | { | |
2968 | free (dl_name); | |
2969 | return false; | |
2970 | } | |
2971 | ||
2972 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; | |
2973 | h->type = STT_DATALABEL; | |
2974 | } | |
2975 | else | |
2976 | /* If a new symbol was created, it holds the allocated name. | |
2977 | Otherwise, we don't need it anymore and should deallocate it. */ | |
2978 | free (dl_name); | |
2979 | ||
2980 | if (h->type != STT_DATALABEL | |
2981 | || ((info->relocateable || info->emitrelocations) | |
2982 | && h->root.type != bfd_link_hash_undefined) | |
2983 | || (! info->relocateable && !info->emitrelocations | |
2984 | && h->root.type != bfd_link_hash_indirect)) | |
2985 | { | |
2986 | /* Make sure we don't get confused on invalid input. */ | |
2987 | (*_bfd_error_handler) | |
2988 | (_("%s: encountered datalabel symbol in input"), | |
2989 | bfd_get_filename (abfd)); | |
2990 | bfd_set_error (bfd_error_bad_value); | |
2991 | return false; | |
2992 | } | |
2993 | ||
2994 | /* Now find the hash-table slot for this entry and fill it in. */ | |
2995 | while (*sym_hash != NULL) | |
2996 | sym_hash++; | |
2997 | *sym_hash = h; | |
2998 | ||
2999 | /* Signal to caller to skip this symbol - we've handled it. */ | |
3000 | *namep = NULL; | |
3001 | } | |
3002 | ||
3003 | return true; | |
3004 | } | |
3005 | ||
3006 | /* This hook function is called before the linker writes out a global | |
3007 | symbol. For relocatable links, DataLabel symbols will be present in | |
3008 | linker output. We cut off the special suffix on those symbols, so the | |
3009 | right name appears in the output. | |
3010 | ||
3011 | When linking and emitting relocations, there can appear global symbols | |
3012 | that are not referenced by relocs, but rather only implicitly through | |
3013 | DataLabel references, a relation that is not visible to the linker. | |
3014 | Since no stripping of global symbols in done when doing such linking, | |
3015 | we don't need to look up and make sure to emit the main symbol for each | |
3016 | DataLabel symbol. */ | |
3017 | ||
3018 | boolean | |
3019 | sh64_elf64_link_output_symbol_hook (abfd, info, cname, sym, input_sec) | |
3020 | bfd *abfd ATTRIBUTE_UNUSED; | |
3021 | struct bfd_link_info *info; | |
3022 | const char *cname; | |
3023 | Elf_Internal_Sym *sym; | |
3024 | asection *input_sec ATTRIBUTE_UNUSED; | |
3025 | { | |
3026 | char *name = (char *) cname; | |
3027 | ||
3028 | if (info->relocateable || info->emitrelocations) | |
3029 | { | |
3030 | if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL) | |
3031 | name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0; | |
3032 | } | |
3033 | ||
3034 | return true; | |
3035 | } | |
3036 | ||
3037 | /* Set bit 0 on the entry address; it always points to SHmedia code. This | |
3038 | is mostly for symmetry with the 32-bit format, where code can be | |
3039 | SHcompact and we need to make a distinction to make sure execution | |
3040 | starts in the right ISA mode. It is also convenient for a loader, | |
3041 | which would otherwise have to set this bit when loading a TR register | |
3042 | before jumping to the program entry. */ | |
3043 | ||
3044 | static void | |
3045 | sh64_elf64_final_write_processing (abfd, linker) | |
3046 | bfd *abfd; | |
3047 | boolean linker ATTRIBUTE_UNUSED; | |
3048 | { | |
3049 | /* FIXME: Perhaps we shouldn't do this if the entry address was supplied | |
3050 | numerically, but we currently lack the infrastructure to recognize | |
3051 | that: The entry symbol, and info whether it is numeric or a symbol | |
3052 | name is kept private in the linker. */ | |
3053 | if (elf_elfheader (abfd)->e_type == ET_EXEC) | |
3054 | elf_elfheader (abfd)->e_entry |= 1; | |
3055 | } | |
3056 | ||
3057 | /* First entry in an absolute procedure linkage table look like this. */ | |
3058 | ||
3059 | static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] = | |
3060 | { | |
3061 | 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */ | |
3062 | 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */ | |
3063 | 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */ | |
3064 | 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ | |
3065 | 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ | |
3066 | 0x6b, 0xf1, 0x46, 0x00, /* ptabs r17, tr0 */ | |
3067 | 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ | |
3068 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
3069 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3070 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3071 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3072 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3073 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3074 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3075 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3076 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3077 | }; | |
3078 | ||
3079 | static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] = | |
3080 | { | |
3081 | 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ | |
3082 | 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */ | |
3083 | 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */ | |
3084 | 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ | |
3085 | 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ | |
3086 | 0x00, 0x46, 0xf1, 0x6b, /* ptabs r17, tr0 */ | |
3087 | 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ | |
3088 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
3089 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3090 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3091 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3092 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3093 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3094 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3095 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3096 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3097 | }; | |
3098 | ||
3099 | /* Sebsequent entries in an absolute procedure linkage table look like | |
3100 | this. */ | |
3101 | ||
3102 | static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] = | |
3103 | { | |
3104 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */ | |
3105 | 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */ | |
3106 | 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */ | |
3107 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ | |
3108 | 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */ | |
3109 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
3110 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
3111 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3112 | 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */ | |
3113 | 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */ | |
3114 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
3115 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ | |
3116 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ | |
3117 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
3118 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3119 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3120 | }; | |
3121 | ||
3122 | static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] = | |
3123 | { | |
3124 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ | |
3125 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ | |
3126 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ | |
3127 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ | |
3128 | 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */ | |
3129 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
3130 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
3131 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3132 | 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */ | |
3133 | 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */ | |
3134 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
3135 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ | |
3136 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ | |
3137 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
3138 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3139 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3140 | }; | |
3141 | ||
3142 | /* Entries in a PIC procedure linkage table look like this. */ | |
3143 | ||
3144 | static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] = | |
3145 | { | |
3146 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ | |
3147 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ | |
3148 | 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */ | |
3149 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
3150 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
3151 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3152 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3153 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
3154 | 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ | |
3155 | 0x00, 0xcb, 0x45, 0x10, /* sub r12, r17, r17 */ | |
3156 | 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */ | |
3157 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
3158 | 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */ | |
3159 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ | |
3160 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ | |
3161 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
3162 | }; | |
3163 | ||
3164 | static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] = | |
3165 | { | |
3166 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ | |
3167 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ | |
3168 | 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */ | |
3169 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
3170 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
3171 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3172 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3173 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
3174 | 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ | |
3175 | 0x10, 0x45, 0xcb, 0x00, /* sub r12, r17, r17 */ | |
3176 | 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */ | |
3177 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
3178 | 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */ | |
3179 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ | |
3180 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ | |
3181 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
3182 | }; | |
3183 | ||
3184 | static const bfd_byte *elf_sh64_plt0_entry; | |
3185 | static const bfd_byte *elf_sh64_plt_entry; | |
3186 | static const bfd_byte *elf_sh64_pic_plt_entry; | |
3187 | ||
3188 | /* Create an entry in an sh ELF linker hash table. */ | |
3189 | ||
3190 | static struct bfd_hash_entry * | |
3191 | sh64_elf64_link_hash_newfunc (entry, table, string) | |
3192 | struct bfd_hash_entry *entry; | |
3193 | struct bfd_hash_table *table; | |
3194 | const char *string; | |
3195 | { | |
3196 | struct elf_sh64_link_hash_entry *ret = | |
3197 | (struct elf_sh64_link_hash_entry *) entry; | |
3198 | ||
3199 | /* Allocate the structure if it has not already been allocated by a | |
3200 | subclass. */ | |
3201 | if (ret == (struct elf_sh64_link_hash_entry *) NULL) | |
3202 | ret = ((struct elf_sh64_link_hash_entry *) | |
3203 | bfd_hash_allocate (table, | |
3204 | sizeof (struct elf_sh64_link_hash_entry))); | |
3205 | if (ret == (struct elf_sh64_link_hash_entry *) NULL) | |
3206 | return (struct bfd_hash_entry *) ret; | |
3207 | ||
3208 | /* Call the allocation method of the superclass. */ | |
3209 | ret = ((struct elf_sh64_link_hash_entry *) | |
3210 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3211 | table, string)); | |
3212 | if (ret != (struct elf_sh64_link_hash_entry *) NULL) | |
3213 | { | |
3214 | ret->pcrel_relocs_copied = NULL; | |
3215 | ret->datalabel_got_offset = (bfd_vma) -1; | |
3216 | } | |
3217 | ||
3218 | return (struct bfd_hash_entry *) ret; | |
3219 | } | |
3220 | ||
3221 | /* Create an sh64 ELF linker hash table. */ | |
3222 | ||
3223 | static struct bfd_link_hash_table * | |
3224 | sh64_elf64_link_hash_table_create (abfd) | |
3225 | bfd *abfd; | |
3226 | { | |
3227 | struct elf_sh64_link_hash_table *ret; | |
3228 | ||
3229 | ret = ((struct elf_sh64_link_hash_table *) | |
3230 | bfd_alloc (abfd, sizeof (struct elf_sh64_link_hash_table))); | |
3231 | if (ret == (struct elf_sh64_link_hash_table *) NULL) | |
3232 | return NULL; | |
3233 | ||
3234 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
3235 | sh64_elf64_link_hash_newfunc)) | |
3236 | { | |
3237 | bfd_release (abfd, ret); | |
3238 | return NULL; | |
3239 | } | |
3240 | ||
3241 | return &ret->root.root; | |
3242 | } | |
3243 | ||
3244 | inline static void | |
3245 | movi_shori_putval (output_bfd, value, addr) | |
3246 | bfd *output_bfd; | |
3247 | unsigned long value; | |
3248 | char *addr; | |
3249 | { | |
3250 | bfd_put_32 (output_bfd, | |
3251 | bfd_get_32 (output_bfd, addr) | |
3252 | | ((value >> 6) & 0x3fffc00), | |
3253 | addr); | |
3254 | bfd_put_32 (output_bfd, | |
3255 | bfd_get_32 (output_bfd, addr + 4) | |
3256 | | ((value << 10) & 0x3fffc00), | |
3257 | addr + 4); | |
3258 | } | |
3259 | ||
3260 | inline static void | |
3261 | movi_3shori_putval (output_bfd, value, addr) | |
3262 | bfd *output_bfd; | |
3263 | bfd_vma value; | |
3264 | char *addr; | |
3265 | { | |
3266 | bfd_put_32 (output_bfd, | |
3267 | bfd_get_32 (output_bfd, addr) | |
3268 | | ((value >> 38) & 0x3fffc00), | |
3269 | addr); | |
3270 | bfd_put_32 (output_bfd, | |
3271 | bfd_get_32 (output_bfd, addr + 4) | |
3272 | | ((value >> 22) & 0x3fffc00), | |
3273 | addr + 4); | |
3274 | bfd_put_32 (output_bfd, | |
3275 | bfd_get_32 (output_bfd, addr + 8) | |
3276 | | ((value >> 6) & 0x3fffc00), | |
3277 | addr + 8); | |
3278 | bfd_put_32 (output_bfd, | |
3279 | bfd_get_32 (output_bfd, addr + 12) | |
3280 | | ((value << 10) & 0x3fffc00), | |
3281 | addr + 12); | |
3282 | } | |
3283 | ||
3284 | /* Create dynamic sections when linking against a dynamic object. */ | |
3285 | ||
3286 | static boolean | |
3287 | sh64_elf64_create_dynamic_sections (abfd, info) | |
3288 | bfd *abfd; | |
3289 | struct bfd_link_info *info; | |
3290 | { | |
3291 | flagword flags, pltflags; | |
3292 | register asection *s; | |
3293 | struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3294 | int ptralign = 0; | |
3295 | ||
3296 | switch (bed->s->arch_size) | |
3297 | { | |
3298 | case 32: | |
3299 | ptralign = 2; | |
3300 | break; | |
3301 | ||
3302 | case 64: | |
3303 | ptralign = 3; | |
3304 | break; | |
3305 | ||
3306 | default: | |
3307 | bfd_set_error (bfd_error_bad_value); | |
3308 | return false; | |
3309 | } | |
3310 | ||
3311 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
3312 | .rel[a].bss sections. */ | |
3313 | ||
3314 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3315 | | SEC_LINKER_CREATED); | |
3316 | ||
3317 | pltflags = flags; | |
3318 | pltflags |= SEC_CODE; | |
3319 | if (bed->plt_not_loaded) | |
3320 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
3321 | if (bed->plt_readonly) | |
3322 | pltflags |= SEC_READONLY; | |
3323 | ||
3324 | s = bfd_make_section (abfd, ".plt"); | |
3325 | if (s == NULL | |
3326 | || ! bfd_set_section_flags (abfd, s, pltflags) | |
3327 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
3328 | return false; | |
3329 | ||
3330 | if (bed->want_plt_sym) | |
3331 | { | |
3332 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
3333 | .plt section. */ | |
3334 | struct elf_link_hash_entry *h = NULL; | |
3335 | if (! (_bfd_generic_link_add_one_symbol | |
3336 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
3337 | (bfd_vma) 0, (const char *) NULL, false, | |
3338 | get_elf_backend_data (abfd)->collect, | |
3339 | (struct bfd_link_hash_entry **) &h))) | |
3340 | return false; | |
3341 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
3342 | h->type = STT_OBJECT; | |
3343 | ||
3344 | if (info->shared | |
3345 | && ! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
3346 | return false; | |
3347 | } | |
3348 | ||
3349 | s = bfd_make_section (abfd, | |
3350 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
3351 | if (s == NULL | |
3352 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
3353 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
3354 | return false; | |
3355 | ||
3356 | if (! _bfd_elf_create_got_section (abfd, info)) | |
3357 | return false; | |
3358 | ||
3359 | { | |
3360 | const char *secname; | |
3361 | char *relname; | |
3362 | flagword secflags; | |
3363 | asection *sec; | |
3364 | ||
3365 | for (sec = abfd->sections; sec; sec = sec->next) | |
3366 | { | |
3367 | secflags = bfd_get_section_flags (abfd, sec); | |
3368 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) | |
3369 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
3370 | continue; | |
3371 | secname = bfd_get_section_name (abfd, sec); | |
3372 | relname = (char *) bfd_malloc (strlen (secname) + 6); | |
3373 | strcpy (relname, ".rela"); | |
3374 | strcat (relname, secname); | |
3375 | s = bfd_make_section (abfd, relname); | |
3376 | if (s == NULL | |
3377 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
3378 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
3379 | return false; | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | if (bed->want_dynbss) | |
3384 | { | |
3385 | /* The .dynbss section is a place to put symbols which are defined | |
3386 | by dynamic objects, are referenced by regular objects, and are | |
3387 | not functions. We must allocate space for them in the process | |
3388 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
3389 | initialize them at run time. The linker script puts the .dynbss | |
3390 | section into the .bss section of the final image. */ | |
3391 | s = bfd_make_section (abfd, ".dynbss"); | |
3392 | if (s == NULL | |
3393 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) | |
3394 | return false; | |
3395 | ||
3396 | /* The .rel[a].bss section holds copy relocs. This section is not | |
3397 | normally needed. We need to create it here, though, so that the | |
3398 | linker will map it to an output section. We can't just create it | |
3399 | only if we need it, because we will not know whether we need it | |
3400 | until we have seen all the input files, and the first time the | |
3401 | main linker code calls BFD after examining all the input files | |
3402 | (size_dynamic_sections) the input sections have already been | |
3403 | mapped to the output sections. If the section turns out not to | |
3404 | be needed, we can discard it later. We will never need this | |
3405 | section when generating a shared object, since they do not use | |
3406 | copy relocs. */ | |
3407 | if (! info->shared) | |
3408 | { | |
3409 | s = bfd_make_section (abfd, | |
3410 | (bed->default_use_rela_p | |
3411 | ? ".rela.bss" : ".rel.bss")); | |
3412 | if (s == NULL | |
3413 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
3414 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
3415 | return false; | |
3416 | } | |
3417 | } | |
3418 | ||
3419 | return true; | |
3420 | } | |
3421 | \f | |
3422 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
3423 | regular object. The current definition is in some section of the | |
3424 | dynamic object, but we're not including those sections. We have to | |
3425 | change the definition to something the rest of the link can | |
3426 | understand. */ | |
3427 | ||
3428 | static boolean | |
3429 | sh64_elf64_adjust_dynamic_symbol (info, h) | |
3430 | struct bfd_link_info *info; | |
3431 | struct elf_link_hash_entry *h; | |
3432 | { | |
3433 | bfd *dynobj; | |
3434 | asection *s; | |
3435 | unsigned int power_of_two; | |
3436 | ||
3437 | dynobj = elf_hash_table (info)->dynobj; | |
3438 | ||
3439 | /* Make sure we know what is going on here. */ | |
3440 | BFD_ASSERT (dynobj != NULL | |
3441 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
3442 | || h->weakdef != NULL | |
3443 | || ((h->elf_link_hash_flags | |
3444 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3445 | && (h->elf_link_hash_flags | |
3446 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
3447 | && (h->elf_link_hash_flags | |
3448 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
3449 | ||
3450 | /* If this is a function, put it in the procedure linkage table. We | |
3451 | will fill in the contents of the procedure linkage table later, | |
3452 | when we know the address of the .got section. */ | |
3453 | if (h->type == STT_FUNC | |
3454 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
3455 | { | |
3456 | if (! info->shared | |
3457 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
3458 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0) | |
3459 | { | |
3460 | /* This case can occur if we saw a PLT reloc in an input | |
3461 | file, but the symbol was never referred to by a dynamic | |
3462 | object. In such a case, we don't actually need to build | |
3463 | a procedure linkage table, and we can just do a REL64 | |
3464 | reloc instead. */ | |
3465 | BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); | |
3466 | return true; | |
3467 | } | |
3468 | ||
3469 | /* Make sure this symbol is output as a dynamic symbol. */ | |
3470 | if (h->dynindx == -1) | |
3471 | { | |
3472 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
3473 | return false; | |
3474 | } | |
3475 | ||
3476 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
3477 | BFD_ASSERT (s != NULL); | |
3478 | ||
3479 | /* If this is the first .plt entry, make room for the special | |
3480 | first entry. */ | |
3481 | if (s->_raw_size == 0) | |
3482 | s->_raw_size += PLT_ENTRY_SIZE; | |
3483 | ||
3484 | /* If this symbol is not defined in a regular file, and we are | |
3485 | not generating a shared library, then set the symbol to this | |
3486 | location in the .plt. This is required to make function | |
3487 | pointers compare as equal between the normal executable and | |
3488 | the shared library. */ | |
3489 | if (! info->shared | |
3490 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3491 | { | |
3492 | h->root.u.def.section = s; | |
3493 | h->root.u.def.value = s->_raw_size; | |
3494 | } | |
3495 | ||
3496 | h->plt.offset = s->_raw_size; | |
3497 | ||
3498 | /* Make room for this entry. */ | |
3499 | s->_raw_size += elf_sh64_sizeof_plt (info); | |
3500 | ||
3501 | /* We also need to make an entry in the .got.plt section, which | |
3502 | will be placed in the .got section by the linker script. */ | |
3503 | ||
3504 | s = bfd_get_section_by_name (dynobj, ".got.plt"); | |
3505 | BFD_ASSERT (s != NULL); | |
3506 | s->_raw_size += 8; | |
3507 | ||
3508 | /* We also need to make an entry in the .rela.plt section. */ | |
3509 | ||
3510 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3511 | BFD_ASSERT (s != NULL); | |
3512 | s->_raw_size += sizeof (Elf64_External_Rela); | |
3513 | ||
3514 | return true; | |
3515 | } | |
3516 | ||
3517 | /* If this is a weak symbol, and there is a real definition, the | |
3518 | processor independent code will have arranged for us to see the | |
3519 | real definition first, and we can just use the same value. */ | |
3520 | if (h->weakdef != NULL) | |
3521 | { | |
3522 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
3523 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
3524 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
3525 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
3526 | return true; | |
3527 | } | |
3528 | ||
3529 | /* This is a reference to a symbol defined by a dynamic object which | |
3530 | is not a function. */ | |
3531 | ||
3532 | /* If we are creating a shared library, we must presume that the | |
3533 | only references to the symbol are via the global offset table. | |
3534 | For such cases we need not do anything here; the relocations will | |
3535 | be handled correctly by relocate_section. */ | |
3536 | if (info->shared) | |
3537 | return true; | |
3538 | ||
3539 | /* If there are no references to this symbol that do not use the | |
3540 | GOT, we don't need to generate a copy reloc. */ | |
3541 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
3542 | return true; | |
3543 | ||
3544 | /* We must allocate the symbol in our .dynbss section, which will | |
3545 | become part of the .bss section of the executable. There will be | |
3546 | an entry for this symbol in the .dynsym section. The dynamic | |
3547 | object will contain position independent code, so all references | |
3548 | from the dynamic object to this symbol will go through the global | |
3549 | offset table. The dynamic linker will use the .dynsym entry to | |
3550 | determine the address it must put in the global offset table, so | |
3551 | both the dynamic object and the regular object will refer to the | |
3552 | same memory location for the variable. */ | |
3553 | ||
3554 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
3555 | BFD_ASSERT (s != NULL); | |
3556 | ||
3557 | /* We must generate a R_SH_COPY reloc to tell the dynamic linker to | |
3558 | copy the initial value out of the dynamic object and into the | |
3559 | runtime process image. We need to remember the offset into the | |
3560 | .rela.bss section we are going to use. */ | |
3561 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
3562 | { | |
3563 | asection *srel; | |
3564 | ||
3565 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
3566 | BFD_ASSERT (srel != NULL); | |
3567 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
3568 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
3569 | } | |
3570 | ||
3571 | /* We need to figure out the alignment required for this symbol. I | |
3572 | have no idea how ELF linkers handle this. */ | |
3573 | power_of_two = bfd_log2 (h->size); | |
3574 | if (power_of_two > 3) | |
3575 | power_of_two = 3; | |
3576 | ||
3577 | /* Apply the required alignment. */ | |
3578 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
3579 | (bfd_size_type) (1 << power_of_two)); | |
3580 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
3581 | { | |
3582 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
3583 | return false; | |
3584 | } | |
3585 | ||
3586 | /* Define the symbol as being at this point in the section. */ | |
3587 | h->root.u.def.section = s; | |
3588 | h->root.u.def.value = s->_raw_size; | |
3589 | ||
3590 | /* Increment the section size to make room for the symbol. */ | |
3591 | s->_raw_size += h->size; | |
3592 | ||
3593 | return true; | |
3594 | } | |
3595 | ||
3596 | /* This function is called via sh_elf_link_hash_traverse if we are | |
3597 | creating a shared object with -Bsymbolic. It discards the space | |
3598 | allocated to copy PC relative relocs against symbols which are | |
3599 | defined in regular objects. We allocated space for them in the | |
3600 | check_relocs routine, but we won't fill them in in the | |
3601 | relocate_section routine. */ | |
3602 | ||
3603 | static boolean | |
3604 | sh64_elf64_discard_copies (h, ignore) | |
3605 | struct elf_sh64_link_hash_entry *h; | |
3606 | PTR ignore ATTRIBUTE_UNUSED; | |
3607 | { | |
3608 | struct elf_sh64_pcrel_relocs_copied *s; | |
3609 | ||
3610 | /* We only discard relocs for symbols defined in a regular object. */ | |
3611 | if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3612 | return true; | |
3613 | ||
3614 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) | |
3615 | s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela); | |
3616 | ||
3617 | return true; | |
3618 | } | |
3619 | ||
3620 | /* Set the sizes of the dynamic sections. */ | |
3621 | ||
3622 | static boolean | |
3623 | sh64_elf64_size_dynamic_sections (output_bfd, info) | |
3624 | bfd *output_bfd; | |
3625 | struct bfd_link_info *info; | |
3626 | { | |
3627 | bfd *dynobj; | |
3628 | asection *s; | |
3629 | boolean plt; | |
3630 | boolean relocs; | |
3631 | boolean reltext; | |
3632 | ||
3633 | dynobj = elf_hash_table (info)->dynobj; | |
3634 | BFD_ASSERT (dynobj != NULL); | |
3635 | ||
3636 | if (elf_hash_table (info)->dynamic_sections_created) | |
3637 | { | |
3638 | /* Set the contents of the .interp section to the interpreter. */ | |
3639 | if (! info->shared) | |
3640 | { | |
3641 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
3642 | BFD_ASSERT (s != NULL); | |
3643 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
3644 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
3645 | } | |
3646 | } | |
3647 | else | |
3648 | { | |
3649 | /* We may have created entries in the .rela.got section. | |
3650 | However, if we are not creating the dynamic sections, we will | |
3651 | not actually use these entries. Reset the size of .rela.got, | |
3652 | which will cause it to get stripped from the output file | |
3653 | below. */ | |
3654 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
3655 | if (s != NULL) | |
3656 | s->_raw_size = 0; | |
3657 | } | |
3658 | ||
3659 | /* If this is a -Bsymbolic shared link, then we need to discard all | |
3660 | PC relative relocs against symbols defined in a regular object. | |
3661 | We allocated space for them in the check_relocs routine, but we | |
3662 | will not fill them in in the relocate_section routine. */ | |
3663 | if (info->shared && info->symbolic) | |
3664 | sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info), | |
3665 | sh64_elf64_discard_copies, | |
3666 | (PTR) NULL); | |
3667 | ||
3668 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3669 | determined the sizes of the various dynamic sections. Allocate | |
3670 | memory for them. */ | |
3671 | plt = false; | |
3672 | relocs = false; | |
3673 | reltext = false; | |
3674 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3675 | { | |
3676 | const char *name; | |
3677 | boolean strip; | |
3678 | ||
3679 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3680 | continue; | |
3681 | ||
3682 | /* It's OK to base decisions on the section name, because none | |
3683 | of the dynobj section names depend upon the input files. */ | |
3684 | name = bfd_get_section_name (dynobj, s); | |
3685 | ||
3686 | strip = false; | |
3687 | ||
3688 | if (strcmp (name, ".plt") == 0) | |
3689 | { | |
3690 | if (s->_raw_size == 0) | |
3691 | { | |
3692 | /* Strip this section if we don't need it; see the | |
3693 | comment below. */ | |
3694 | strip = true; | |
3695 | } | |
3696 | else | |
3697 | { | |
3698 | /* Remember whether there is a PLT. */ | |
3699 | plt = true; | |
3700 | } | |
3701 | } | |
3702 | else if (strncmp (name, ".rela", 5) == 0) | |
3703 | { | |
3704 | if (s->_raw_size == 0) | |
3705 | { | |
3706 | /* If we don't need this section, strip it from the | |
3707 | output file. This is mostly to handle .rela.bss and | |
3708 | .rela.plt. We must create both sections in | |
3709 | create_dynamic_sections, because they must be created | |
3710 | before the linker maps input sections to output | |
3711 | sections. The linker does that before | |
3712 | adjust_dynamic_symbol is called, and it is that | |
3713 | function which decides whether anything needs to go | |
3714 | into these sections. */ | |
3715 | strip = true; | |
3716 | } | |
3717 | else | |
3718 | { | |
3719 | asection *target; | |
3720 | ||
3721 | /* Remember whether there are any reloc sections other | |
3722 | than .rela.plt. */ | |
3723 | if (strcmp (name, ".rela.plt") != 0) | |
3724 | { | |
3725 | const char *outname; | |
3726 | ||
3727 | relocs = true; | |
3728 | ||
3729 | /* If this relocation section applies to a read only | |
3730 | section, then we probably need a DT_TEXTREL | |
3731 | entry. The entries in the .rela.plt section | |
3732 | really apply to the .got section, which we | |
3733 | created ourselves and so know is not readonly. */ | |
3734 | outname = bfd_get_section_name (output_bfd, | |
3735 | s->output_section); | |
3736 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
3737 | if (target != NULL | |
3738 | && (target->flags & SEC_READONLY) != 0 | |
3739 | && (target->flags & SEC_ALLOC) != 0) | |
3740 | reltext = true; | |
3741 | } | |
3742 | ||
3743 | /* We use the reloc_count field as a counter if we need | |
3744 | to copy relocs into the output file. */ | |
3745 | s->reloc_count = 0; | |
3746 | } | |
3747 | } | |
3748 | else if (strncmp (name, ".got", 4) != 0) | |
3749 | { | |
3750 | /* It's not one of our sections, so don't allocate space. */ | |
3751 | continue; | |
3752 | } | |
3753 | ||
3754 | if (strip) | |
3755 | { | |
3756 | _bfd_strip_section_from_output (info, s); | |
3757 | continue; | |
3758 | } | |
3759 | ||
3760 | /* Allocate memory for the section contents. */ | |
3761 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); | |
3762 | if (s->contents == NULL && s->_raw_size != 0) | |
3763 | return false; | |
3764 | } | |
3765 | ||
3766 | if (elf_hash_table (info)->dynamic_sections_created) | |
3767 | { | |
3768 | /* Add some entries to the .dynamic section. We fill in the | |
3769 | values later, in sh64_elf64_finish_dynamic_sections, but we | |
3770 | must add the entries now so that we get the correct size for | |
3771 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3772 | dynamic linker and used by the debugger. */ | |
3773 | if (! info->shared) | |
3774 | { | |
3775 | if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)) | |
3776 | return false; | |
3777 | } | |
3778 | ||
3779 | if (plt) | |
3780 | { | |
3781 | if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0) | |
3782 | || ! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
3783 | || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
3784 | || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0)) | |
3785 | return false; | |
3786 | } | |
3787 | ||
3788 | if (relocs) | |
3789 | { | |
3790 | if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0) | |
3791 | || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0) | |
3792 | || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT, | |
3793 | sizeof (Elf64_External_Rela))) | |
3794 | return false; | |
3795 | } | |
3796 | ||
3797 | if (reltext) | |
3798 | { | |
3799 | if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
3800 | return false; | |
3801 | } | |
3802 | } | |
3803 | ||
3804 | return true; | |
3805 | } | |
3806 | ||
3807 | /* Finish up dynamic symbol handling. We set the contents of various | |
3808 | dynamic sections here. */ | |
3809 | ||
3810 | static boolean | |
3811 | sh64_elf64_finish_dynamic_symbol (output_bfd, info, h, sym) | |
3812 | bfd *output_bfd; | |
3813 | struct bfd_link_info *info; | |
3814 | struct elf_link_hash_entry *h; | |
3815 | Elf_Internal_Sym *sym; | |
3816 | { | |
3817 | bfd *dynobj; | |
3818 | ||
3819 | dynobj = elf_hash_table (info)->dynobj; | |
3820 | ||
3821 | if (h->plt.offset != (bfd_vma) -1) | |
3822 | { | |
3823 | asection *splt; | |
3824 | asection *sgot; | |
3825 | asection *srel; | |
3826 | ||
3827 | bfd_vma plt_index; | |
3828 | bfd_vma got_offset; | |
3829 | Elf_Internal_Rela rel; | |
3830 | ||
3831 | /* This symbol has an entry in the procedure linkage table. Set | |
3832 | it up. */ | |
3833 | ||
3834 | BFD_ASSERT (h->dynindx != -1); | |
3835 | ||
3836 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3837 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
3838 | srel = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3839 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
3840 | ||
3841 | /* Get the index in the procedure linkage table which | |
3842 | corresponds to this symbol. This is the index of this symbol | |
3843 | in all the symbols for which we are making plt entries. The | |
3844 | first entry in the procedure linkage table is reserved. */ | |
3845 | plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1; | |
3846 | ||
3847 | /* Get the offset into the .got table of the entry that | |
3848 | corresponds to this function. Each .got entry is 8 bytes. | |
3849 | The first three are reserved. */ | |
3850 | got_offset = (plt_index + 3) * 8; | |
3851 | ||
3852 | got_offset -= GOT_BIAS; | |
3853 | ||
3854 | /* Fill in the entry in the procedure linkage table. */ | |
3855 | if (! info->shared) | |
3856 | { | |
3857 | if (elf_sh64_plt_entry == NULL) | |
3858 | { | |
3859 | elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ? | |
3860 | elf_sh64_plt_entry_be : elf_sh64_plt_entry_le); | |
3861 | } | |
3862 | memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry, | |
3863 | elf_sh64_sizeof_plt (info)); | |
3864 | movi_3shori_putval (output_bfd, | |
3865 | (sgot->output_section->vma | |
3866 | + sgot->output_offset | |
3867 | + got_offset), | |
3868 | (splt->contents + h->plt.offset | |
3869 | + elf_sh64_plt_symbol_offset (info))); | |
3870 | ||
3871 | movi_shori_putval (output_bfd, | |
3872 | (splt->output_section->vma + splt->output_offset), | |
3873 | (splt->contents + h->plt.offset | |
3874 | + elf_sh64_plt_plt0_offset (info))); | |
3875 | } | |
3876 | else | |
3877 | { | |
3878 | if (elf_sh64_pic_plt_entry == NULL) | |
3879 | { | |
3880 | elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? | |
3881 | elf_sh64_pic_plt_entry_be : | |
3882 | elf_sh64_pic_plt_entry_le); | |
3883 | } | |
3884 | memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry, | |
3885 | elf_sh64_sizeof_plt (info)); | |
3886 | movi_shori_putval (output_bfd, got_offset, | |
3887 | (splt->contents + h->plt.offset | |
3888 | + elf_sh64_plt_symbol_offset (info))); | |
3889 | } | |
3890 | ||
3891 | got_offset += GOT_BIAS; | |
3892 | ||
3893 | movi_shori_putval (output_bfd, | |
3894 | plt_index * sizeof (Elf64_External_Rela), | |
3895 | (splt->contents + h->plt.offset | |
3896 | + elf_sh64_plt_reloc_offset (info))); | |
3897 | ||
3898 | /* Fill in the entry in the global offset table. */ | |
3899 | bfd_put_64 (output_bfd, | |
3900 | (splt->output_section->vma | |
3901 | + splt->output_offset | |
3902 | + h->plt.offset | |
3903 | + elf_sh64_plt_temp_offset (info)), | |
3904 | sgot->contents + got_offset); | |
3905 | ||
3906 | /* Fill in the entry in the .rela.plt section. */ | |
3907 | rel.r_offset = (sgot->output_section->vma | |
3908 | + sgot->output_offset | |
3909 | + got_offset); | |
3910 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64); | |
3911 | rel.r_addend = 0; | |
3912 | rel.r_addend = GOT_BIAS; | |
3913 | bfd_elf64_swap_reloca_out (output_bfd, &rel, | |
3914 | ((Elf64_External_Rela *) srel->contents | |
3915 | + plt_index)); | |
3916 | ||
3917 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3918 | { | |
3919 | /* Mark the symbol as undefined, rather than as defined in | |
3920 | the .plt section. Leave the value alone. */ | |
3921 | sym->st_shndx = SHN_UNDEF; | |
3922 | } | |
3923 | } | |
3924 | ||
3925 | if (h->got.offset != (bfd_vma) -1) | |
3926 | { | |
3927 | asection *sgot; | |
3928 | asection *srel; | |
3929 | Elf_Internal_Rela rel; | |
3930 | ||
3931 | /* This symbol has an entry in the global offset table. Set it | |
3932 | up. */ | |
3933 | ||
3934 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3935 | srel = bfd_get_section_by_name (dynobj, ".rela.got"); | |
3936 | BFD_ASSERT (sgot != NULL && srel != NULL); | |
3937 | ||
3938 | rel.r_offset = (sgot->output_section->vma | |
3939 | + sgot->output_offset | |
3940 | + (h->got.offset &~ 1)); | |
3941 | ||
3942 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3943 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3944 | the symbol was forced to be local because of a version file. | |
3945 | The entry in the global offset table will already have been | |
3946 | initialized in the relocate_section function. */ | |
3947 | if (info->shared | |
3948 | && (info->symbolic || h->dynindx == -1) | |
3949 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
3950 | { | |
3951 | rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64); | |
3952 | rel.r_addend = (h->root.u.def.value | |
3953 | + h->root.u.def.section->output_section->vma | |
3954 | + h->root.u.def.section->output_offset); | |
3955 | } | |
3956 | else | |
3957 | { | |
3958 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
3959 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64); | |
3960 | rel.r_addend = 0; | |
3961 | } | |
3962 | ||
3963 | bfd_elf64_swap_reloca_out (output_bfd, &rel, | |
3964 | ((Elf64_External_Rela *) srel->contents | |
3965 | + srel->reloc_count)); | |
3966 | ++srel->reloc_count; | |
3967 | } | |
3968 | ||
3969 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
3970 | { | |
3971 | asection *s; | |
3972 | Elf_Internal_Rela rel; | |
3973 | ||
3974 | /* This symbol needs a copy reloc. Set it up. */ | |
3975 | ||
3976 | BFD_ASSERT (h->dynindx != -1 | |
3977 | && (h->root.type == bfd_link_hash_defined | |
3978 | || h->root.type == bfd_link_hash_defweak)); | |
3979 | ||
3980 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
3981 | ".rela.bss"); | |
3982 | BFD_ASSERT (s != NULL); | |
3983 | ||
3984 | rel.r_offset = (h->root.u.def.value | |
3985 | + h->root.u.def.section->output_section->vma | |
3986 | + h->root.u.def.section->output_offset); | |
3987 | rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64); | |
3988 | rel.r_addend = 0; | |
3989 | bfd_elf64_swap_reloca_out (output_bfd, &rel, | |
3990 | ((Elf64_External_Rela *) s->contents | |
3991 | + s->reloc_count)); | |
3992 | ++s->reloc_count; | |
3993 | } | |
3994 | ||
3995 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3996 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3997 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3998 | sym->st_shndx = SHN_ABS; | |
3999 | ||
4000 | return true; | |
4001 | } | |
4002 | ||
4003 | /* Finish up the dynamic sections. */ | |
4004 | ||
4005 | static boolean | |
4006 | sh64_elf64_finish_dynamic_sections (output_bfd, info) | |
4007 | bfd *output_bfd; | |
4008 | struct bfd_link_info *info; | |
4009 | { | |
4010 | bfd *dynobj; | |
4011 | asection *sgot; | |
4012 | asection *sdyn; | |
4013 | ||
4014 | dynobj = elf_hash_table (info)->dynobj; | |
4015 | ||
4016 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
4017 | BFD_ASSERT (sgot != NULL); | |
4018 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4019 | ||
4020 | if (elf_hash_table (info)->dynamic_sections_created) | |
4021 | { | |
4022 | asection *splt; | |
4023 | Elf64_External_Dyn *dyncon, *dynconend; | |
4024 | ||
4025 | BFD_ASSERT (sdyn != NULL); | |
4026 | ||
4027 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
4028 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4029 | for (; dyncon < dynconend; dyncon++) | |
4030 | { | |
4031 | Elf_Internal_Dyn dyn; | |
4032 | const char *name; | |
4033 | asection *s; | |
4034 | ||
4035 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
4036 | ||
4037 | switch (dyn.d_tag) | |
4038 | { | |
4039 | default: | |
4040 | break; | |
4041 | ||
4042 | case DT_PLTGOT: | |
4043 | name = ".got"; | |
4044 | goto get_vma; | |
4045 | ||
4046 | case DT_JMPREL: | |
4047 | name = ".rela.plt"; | |
4048 | get_vma: | |
4049 | s = bfd_get_section_by_name (output_bfd, name); | |
4050 | BFD_ASSERT (s != NULL); | |
4051 | dyn.d_un.d_ptr = s->vma; | |
4052 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4053 | break; | |
4054 | ||
4055 | case DT_PLTRELSZ: | |
4056 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
4057 | BFD_ASSERT (s != NULL); | |
4058 | if (s->_cooked_size != 0) | |
4059 | dyn.d_un.d_val = s->_cooked_size; | |
4060 | else | |
4061 | dyn.d_un.d_val = s->_raw_size; | |
4062 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4063 | break; | |
4064 | ||
4065 | case DT_RELASZ: | |
4066 | /* My reading of the SVR4 ABI indicates that the | |
4067 | procedure linkage table relocs (DT_JMPREL) should be | |
4068 | included in the overall relocs (DT_RELA). This is | |
4069 | what Solaris does. However, UnixWare can not handle | |
4070 | that case. Therefore, we override the DT_RELASZ entry | |
4071 | here to make it not include the JMPREL relocs. Since | |
4072 | the linker script arranges for .rela.plt to follow all | |
4073 | other relocation sections, we don't have to worry | |
4074 | about changing the DT_RELA entry. */ | |
4075 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
4076 | if (s != NULL) | |
4077 | { | |
4078 | if (s->_cooked_size != 0) | |
4079 | dyn.d_un.d_val -= s->_cooked_size; | |
4080 | else | |
4081 | dyn.d_un.d_val -= s->_raw_size; | |
4082 | } | |
4083 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4084 | break; | |
4085 | } | |
4086 | } | |
4087 | ||
4088 | /* Fill in the first entry in the procedure linkage table. */ | |
4089 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
4090 | if (splt && splt->_raw_size > 0) | |
4091 | { | |
4092 | if (info->shared) | |
4093 | { | |
4094 | if (elf_sh64_pic_plt_entry == NULL) | |
4095 | { | |
4096 | elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ? | |
4097 | elf_sh64_pic_plt_entry_be : | |
4098 | elf_sh64_pic_plt_entry_le); | |
4099 | } | |
4100 | memcpy (splt->contents, elf_sh64_pic_plt_entry, | |
4101 | elf_sh64_sizeof_plt (info)); | |
4102 | } | |
4103 | else | |
4104 | { | |
4105 | if (elf_sh64_plt0_entry == NULL) | |
4106 | { | |
4107 | elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ? | |
4108 | elf_sh64_plt0_entry_be : | |
4109 | elf_sh64_plt0_entry_le); | |
4110 | } | |
4111 | memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE); | |
4112 | movi_3shori_putval (output_bfd, | |
4113 | sgot->output_section->vma | |
4114 | + sgot->output_offset, | |
4115 | splt->contents | |
4116 | + elf_sh64_plt0_gotplt_offset (info)); | |
4117 | } | |
4118 | ||
4119 | /* UnixWare sets the entsize of .plt to 8, although that doesn't | |
4120 | really seem like the right value. */ | |
4121 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8; | |
4122 | } | |
4123 | } | |
4124 | ||
4125 | /* Fill in the first three entries in the global offset table. */ | |
4126 | if (sgot->_raw_size > 0) | |
4127 | { | |
4128 | if (sdyn == NULL) | |
4129 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); | |
4130 | else | |
4131 | bfd_put_64 (output_bfd, | |
4132 | sdyn->output_section->vma + sdyn->output_offset, | |
4133 | sgot->contents); | |
4134 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
4135 | bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16); | |
4136 | } | |
4137 | ||
4138 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; | |
4139 | ||
4140 | return true; | |
4141 | } | |
4142 | ||
4143 | ||
4144 | #ifndef ELF_ARCH | |
4145 | #define TARGET_BIG_SYM bfd_elf64_sh64_vec | |
4146 | #define TARGET_BIG_NAME "elf64-sh64" | |
4147 | #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec | |
4148 | #define TARGET_LITTLE_NAME "elf64-sh64l" | |
4149 | #define ELF_ARCH bfd_arch_sh | |
4150 | #define ELF_MACHINE_CODE EM_SH | |
4151 | #define ELF_MAXPAGESIZE 128 | |
4152 | ||
4153 | #define elf_symbol_leading_char '_' | |
4154 | #endif /* ELF_ARCH */ | |
4155 | ||
4156 | #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup | |
4157 | #define elf_info_to_howto sh_elf64_info_to_howto | |
4158 | ||
4159 | /* Note: there's no relaxation at present. */ | |
4160 | ||
4161 | #define elf_backend_relocate_section sh_elf64_relocate_section | |
4162 | #define bfd_elf64_bfd_get_relocated_section_contents \ | |
4163 | sh_elf64_get_relocated_section_contents | |
4164 | #define elf_backend_object_p sh_elf64_set_mach_from_flags | |
4165 | #define bfd_elf64_bfd_set_private_flags \ | |
4166 | sh_elf64_set_private_flags | |
4167 | #define bfd_elf64_bfd_copy_private_bfd_data \ | |
4168 | sh_elf64_copy_private_data | |
4169 | #define bfd_elf64_bfd_merge_private_bfd_data \ | |
4170 | sh_elf64_merge_private_data | |
4171 | #define elf_backend_fake_sections sh64_elf64_fake_sections | |
4172 | ||
4173 | #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook | |
4174 | #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook | |
4175 | #define elf_backend_check_relocs sh_elf64_check_relocs | |
4176 | ||
4177 | #define elf_backend_can_gc_sections 1 | |
4178 | ||
4179 | #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type | |
4180 | ||
4181 | #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook | |
4182 | ||
4183 | #define elf_backend_link_output_symbol_hook \ | |
4184 | sh64_elf64_link_output_symbol_hook | |
4185 | ||
4186 | #define elf_backend_final_write_processing \ | |
4187 | sh64_elf64_final_write_processing | |
4188 | ||
4189 | #define elf_backend_create_dynamic_sections \ | |
4190 | sh64_elf64_create_dynamic_sections | |
4191 | #define bfd_elf64_bfd_link_hash_table_create \ | |
4192 | sh64_elf64_link_hash_table_create | |
4193 | #define elf_backend_adjust_dynamic_symbol \ | |
4194 | sh64_elf64_adjust_dynamic_symbol | |
4195 | #define elf_backend_size_dynamic_sections \ | |
4196 | sh64_elf64_size_dynamic_sections | |
4197 | #define elf_backend_finish_dynamic_symbol \ | |
4198 | sh64_elf64_finish_dynamic_symbol | |
4199 | #define elf_backend_finish_dynamic_sections \ | |
4200 | sh64_elf64_finish_dynamic_sections | |
4201 | ||
4202 | #define elf_backend_want_got_plt 1 | |
4203 | #define elf_backend_plt_readonly 1 | |
4204 | #define elf_backend_want_plt_sym 0 | |
4205 | #define elf_backend_got_header_size 24 | |
4206 | #define elf_backend_plt_header_size PLT_ENTRY_SIZE | |
4207 | ||
4208 | #include "elf64-target.h" |