Commit | Line | Data |
---|---|---|
4e5ba5b7 | 1 | /* FRV-specific support for 32-bit ELF. |
1049f94e | 2 | Copyright 2002, 2003 Free Software Foundation, Inc. |
4e5ba5b7 DB |
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 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
23 | #include "elf-bfd.h" | |
24 | #include "elf/frv.h" | |
ec3391e7 | 25 | #include "elf/dwarf2.h" |
51532845 | 26 | #include "hashtab.h" |
4e5ba5b7 DB |
27 | |
28 | /* Forward declarations. */ | |
29 | static bfd_reloc_status_type elf32_frv_relocate_lo16 | |
30 | PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); | |
31 | static bfd_reloc_status_type elf32_frv_relocate_hi16 | |
32 | PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); | |
33 | static bfd_reloc_status_type elf32_frv_relocate_label24 | |
34 | PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); | |
35 | static bfd_reloc_status_type elf32_frv_relocate_gprel12 | |
b34976b6 AM |
36 | PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
37 | bfd_byte *, bfd_vma)); | |
4e5ba5b7 | 38 | static bfd_reloc_status_type elf32_frv_relocate_gprelu12 |
b34976b6 AM |
39 | PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
40 | bfd_byte *, bfd_vma)); | |
4e5ba5b7 | 41 | static bfd_reloc_status_type elf32_frv_relocate_gprello |
b34976b6 AM |
42 | PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
43 | bfd_byte *, bfd_vma)); | |
4e5ba5b7 | 44 | static bfd_reloc_status_type elf32_frv_relocate_gprelhi |
b34976b6 AM |
45 | PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
46 | bfd_byte *, bfd_vma)); | |
4e5ba5b7 DB |
47 | static reloc_howto_type *frv_reloc_type_lookup |
48 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
b34976b6 | 49 | static void frv_info_to_howto_rela |
947216bf | 50 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
b34976b6 AM |
51 | static bfd_boolean elf32_frv_relocate_section |
52 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
53 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
54 | static bfd_boolean elf32_frv_add_symbol_hook | |
55 | PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
56 | const char **, flagword *, asection **, bfd_vma *)); | |
4e5ba5b7 | 57 | static bfd_reloc_status_type frv_final_link_relocate |
b34976b6 AM |
58 | PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, |
59 | Elf_Internal_Rela *, bfd_vma)); | |
60 | static bfd_boolean elf32_frv_gc_sweep_hook | |
61 | PARAMS ((bfd *, struct bfd_link_info *, asection *, const | |
62 | Elf_Internal_Rela *)); | |
4e5ba5b7 | 63 | static asection * elf32_frv_gc_mark_hook |
b34976b6 AM |
64 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
65 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
66 | static bfd_boolean elf32_frv_check_relocs | |
67 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
68 | const Elf_Internal_Rela *)); | |
69 | static int elf32_frv_machine | |
70 | PARAMS ((bfd *)); | |
71 | static bfd_boolean elf32_frv_object_p | |
72 | PARAMS ((bfd *)); | |
73 | static bfd_boolean frv_elf_set_private_flags | |
74 | PARAMS ((bfd *, flagword)); | |
75 | static bfd_boolean frv_elf_copy_private_bfd_data | |
76 | PARAMS ((bfd *, bfd *)); | |
77 | static bfd_boolean frv_elf_merge_private_bfd_data | |
78 | PARAMS ((bfd *, bfd *)); | |
79 | static bfd_boolean frv_elf_print_private_bfd_data | |
80 | PARAMS ((bfd *, PTR)); | |
4e5ba5b7 DB |
81 | |
82 | static reloc_howto_type elf32_frv_howto_table [] = | |
83 | { | |
84 | /* This reloc does nothing. */ | |
85 | HOWTO (R_FRV_NONE, /* type */ | |
86 | 0, /* rightshift */ | |
87 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
88 | 32, /* bitsize */ | |
b34976b6 | 89 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
90 | 0, /* bitpos */ |
91 | complain_overflow_bitfield, /* complain_on_overflow */ | |
92 | bfd_elf_generic_reloc, /* special_function */ | |
93 | "R_FRV_NONE", /* name */ | |
b34976b6 | 94 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
95 | 0, /* src_mask */ |
96 | 0, /* dst_mask */ | |
b34976b6 | 97 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
98 | |
99 | /* A 32 bit absolute relocation. */ | |
100 | HOWTO (R_FRV_32, /* type */ | |
101 | 0, /* rightshift */ | |
102 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
103 | 32, /* bitsize */ | |
b34976b6 | 104 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
105 | 0, /* bitpos */ |
106 | complain_overflow_bitfield, /* complain_on_overflow */ | |
107 | bfd_elf_generic_reloc, /* special_function */ | |
108 | "R_FRV_32", /* name */ | |
b34976b6 | 109 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
110 | 0xffffffff, /* src_mask */ |
111 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 112 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
113 | |
114 | /* A 16 bit pc-relative relocation. */ | |
115 | HOWTO (R_FRV_LABEL16, /* type */ | |
b15b52ef | 116 | 2, /* rightshift */ |
4e5ba5b7 DB |
117 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
118 | 16, /* bitsize */ | |
b34976b6 | 119 | TRUE, /* pc_relative */ |
4e5ba5b7 | 120 | 0, /* bitpos */ |
e6deed0a | 121 | complain_overflow_signed, /* complain_on_overflow */ |
4e5ba5b7 DB |
122 | bfd_elf_generic_reloc, /* special_function */ |
123 | "R_FRV_LABEL16", /* name */ | |
b34976b6 | 124 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
125 | 0xffff, /* src_mask */ |
126 | 0xffff, /* dst_mask */ | |
b34976b6 | 127 | TRUE), /* pcrel_offset */ |
4e5ba5b7 DB |
128 | |
129 | /* A 24-bit pc-relative relocation. */ | |
130 | HOWTO (R_FRV_LABEL24, /* type */ | |
131 | 2, /* rightshift */ | |
132 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
133 | 26, /* bitsize */ | |
b34976b6 | 134 | TRUE, /* pc_relative */ |
4e5ba5b7 DB |
135 | 0, /* bitpos */ |
136 | complain_overflow_bitfield, /* complain_on_overflow */ | |
137 | bfd_elf_generic_reloc, /* special_function */ | |
138 | "R_FRV_LABEL24", /* name */ | |
b34976b6 | 139 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
140 | 0x7e03ffff, /* src_mask */ |
141 | 0x7e03ffff, /* dst_mask */ | |
b34976b6 | 142 | TRUE), /* pcrel_offset */ |
4e5ba5b7 DB |
143 | |
144 | HOWTO (R_FRV_LO16, /* type */ | |
145 | 0, /* rightshift */ | |
146 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
147 | 16, /* bitsize */ | |
b34976b6 | 148 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
149 | 0, /* bitpos */ |
150 | complain_overflow_dont, /* complain_on_overflow */ | |
151 | bfd_elf_generic_reloc, /* special_function */ | |
152 | "R_FRV_LO16", /* name */ | |
b34976b6 | 153 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
154 | 0xffff, /* src_mask */ |
155 | 0xffff, /* dst_mask */ | |
b34976b6 | 156 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
157 | |
158 | HOWTO (R_FRV_HI16, /* type */ | |
159 | 0, /* rightshift */ | |
160 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
161 | 16, /* bitsize */ | |
b34976b6 | 162 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
163 | 0, /* bitpos */ |
164 | complain_overflow_dont, /* complain_on_overflow */ | |
165 | bfd_elf_generic_reloc, /* special_function */ | |
166 | "R_FRV_HI16", /* name */ | |
b34976b6 | 167 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
168 | 0xffff, /* src_mask */ |
169 | 0xffff, /* dst_mask */ | |
b34976b6 | 170 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
171 | |
172 | HOWTO (R_FRV_GPREL12, /* type */ | |
173 | 0, /* rightshift */ | |
174 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
175 | 12, /* bitsize */ | |
b34976b6 | 176 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
177 | 0, /* bitpos */ |
178 | complain_overflow_dont, /* complain_on_overflow */ | |
179 | bfd_elf_generic_reloc, /* special_function */ | |
180 | "R_FRV_GPREL12", /* name */ | |
b34976b6 | 181 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
182 | 0xfff, /* src_mask */ |
183 | 0xfff, /* dst_mask */ | |
b34976b6 | 184 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
185 | |
186 | HOWTO (R_FRV_GPRELU12, /* type */ | |
187 | 0, /* rightshift */ | |
188 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
189 | 12, /* bitsize */ | |
b34976b6 | 190 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
191 | 0, /* bitpos */ |
192 | complain_overflow_dont, /* complain_on_overflow */ | |
193 | bfd_elf_generic_reloc, /* special_function */ | |
194 | "R_FRV_GPRELU12", /* name */ | |
b34976b6 | 195 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
196 | 0xfff, /* src_mask */ |
197 | 0x3f03f, /* dst_mask */ | |
b34976b6 | 198 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
199 | |
200 | HOWTO (R_FRV_GPREL32, /* type */ | |
201 | 0, /* rightshift */ | |
202 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
203 | 32, /* bitsize */ | |
b34976b6 | 204 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
205 | 0, /* bitpos */ |
206 | complain_overflow_dont, /* complain_on_overflow */ | |
207 | bfd_elf_generic_reloc, /* special_function */ | |
208 | "R_FRV_GPREL32", /* name */ | |
b34976b6 | 209 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
210 | 0xffffffff, /* src_mask */ |
211 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 212 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
213 | |
214 | HOWTO (R_FRV_GPRELHI, /* type */ | |
215 | 0, /* rightshift */ | |
216 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
217 | 16, /* bitsize */ | |
b34976b6 | 218 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
219 | 0, /* bitpos */ |
220 | complain_overflow_dont, /* complain_on_overflow */ | |
221 | bfd_elf_generic_reloc, /* special_function */ | |
222 | "R_FRV_GPRELHI", /* name */ | |
b34976b6 | 223 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
224 | 0xffff, /* src_mask */ |
225 | 0xffff, /* dst_mask */ | |
b34976b6 | 226 | FALSE), /* pcrel_offset */ |
4e5ba5b7 DB |
227 | |
228 | HOWTO (R_FRV_GPRELLO, /* type */ | |
229 | 0, /* rightshift */ | |
230 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
231 | 16, /* bitsize */ | |
b34976b6 | 232 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
233 | 0, /* bitpos */ |
234 | complain_overflow_dont, /* complain_on_overflow */ | |
235 | bfd_elf_generic_reloc, /* special_function */ | |
236 | "R_FRV_GPRELLO", /* name */ | |
b34976b6 | 237 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
238 | 0xffff, /* src_mask */ |
239 | 0xffff, /* dst_mask */ | |
b34976b6 | 240 | FALSE), /* pcrel_offset */ |
51532845 AO |
241 | |
242 | /* A 12-bit signed operand with the GOT offset for the address of | |
243 | the symbol. */ | |
244 | HOWTO (R_FRV_GOT12, /* type */ | |
245 | 0, /* rightshift */ | |
246 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
247 | 12, /* bitsize */ | |
248 | FALSE, /* pc_relative */ | |
249 | 0, /* bitpos */ | |
250 | complain_overflow_signed, /* complain_on_overflow */ | |
251 | bfd_elf_generic_reloc, /* special_function */ | |
252 | "R_FRV_GOT12", /* name */ | |
253 | FALSE, /* partial_inplace */ | |
254 | 0xfff, /* src_mask */ | |
255 | 0xfff, /* dst_mask */ | |
256 | FALSE), /* pcrel_offset */ | |
257 | ||
258 | /* The upper 16 bits of the GOT offset for the address of the | |
259 | symbol. */ | |
260 | HOWTO (R_FRV_GOTHI, /* type */ | |
261 | 0, /* rightshift */ | |
262 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 16, /* bitsize */ | |
264 | FALSE, /* pc_relative */ | |
265 | 0, /* bitpos */ | |
266 | complain_overflow_dont, /* complain_on_overflow */ | |
267 | bfd_elf_generic_reloc, /* special_function */ | |
268 | "R_FRV_GOTHI", /* name */ | |
269 | FALSE, /* partial_inplace */ | |
270 | 0xffff, /* src_mask */ | |
271 | 0xffff, /* dst_mask */ | |
272 | FALSE), /* pcrel_offset */ | |
273 | ||
274 | /* The lower 16 bits of the GOT offset for the address of the | |
275 | symbol. */ | |
276 | HOWTO (R_FRV_GOTLO, /* type */ | |
277 | 0, /* rightshift */ | |
278 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
279 | 16, /* bitsize */ | |
280 | FALSE, /* pc_relative */ | |
281 | 0, /* bitpos */ | |
282 | complain_overflow_dont, /* complain_on_overflow */ | |
283 | bfd_elf_generic_reloc, /* special_function */ | |
284 | "R_FRV_GOTLO", /* name */ | |
285 | FALSE, /* partial_inplace */ | |
286 | 0xffff, /* src_mask */ | |
287 | 0xffff, /* dst_mask */ | |
288 | FALSE), /* pcrel_offset */ | |
289 | ||
290 | /* The 32-bit address of the canonical descriptor of a function. */ | |
291 | HOWTO (R_FRV_FUNCDESC, /* type */ | |
292 | 0, /* rightshift */ | |
293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
294 | 32, /* bitsize */ | |
295 | FALSE, /* pc_relative */ | |
296 | 0, /* bitpos */ | |
297 | complain_overflow_bitfield, /* complain_on_overflow */ | |
298 | bfd_elf_generic_reloc, /* special_function */ | |
299 | "R_FRV_FUNCDESC", /* name */ | |
300 | FALSE, /* partial_inplace */ | |
301 | 0xffffffff, /* src_mask */ | |
302 | 0xffffffff, /* dst_mask */ | |
303 | FALSE), /* pcrel_offset */ | |
304 | ||
305 | /* A 12-bit signed operand with the GOT offset for the address of | |
306 | canonical descriptor of a function. */ | |
307 | HOWTO (R_FRV_FUNCDESC_GOT12, /* type */ | |
308 | 0, /* rightshift */ | |
309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
310 | 12, /* bitsize */ | |
311 | FALSE, /* pc_relative */ | |
312 | 0, /* bitpos */ | |
313 | complain_overflow_signed, /* complain_on_overflow */ | |
314 | bfd_elf_generic_reloc, /* special_function */ | |
315 | "R_FRV_FUNCDESC_GOT12", /* name */ | |
316 | FALSE, /* partial_inplace */ | |
317 | 0xfff, /* src_mask */ | |
318 | 0xfff, /* dst_mask */ | |
319 | FALSE), /* pcrel_offset */ | |
320 | ||
321 | /* The upper 16 bits of the GOT offset for the address of the | |
322 | canonical descriptor of a function. */ | |
323 | HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */ | |
324 | 0, /* rightshift */ | |
325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
326 | 16, /* bitsize */ | |
327 | FALSE, /* pc_relative */ | |
328 | 0, /* bitpos */ | |
329 | complain_overflow_dont, /* complain_on_overflow */ | |
330 | bfd_elf_generic_reloc, /* special_function */ | |
331 | "R_FRV_FUNCDESC_GOTHI", /* name */ | |
332 | FALSE, /* partial_inplace */ | |
333 | 0xffff, /* src_mask */ | |
334 | 0xffff, /* dst_mask */ | |
335 | FALSE), /* pcrel_offset */ | |
336 | ||
337 | /* The lower 16 bits of the GOT offset for the address of the | |
338 | canonical descriptor of a function. */ | |
339 | HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */ | |
340 | 0, /* rightshift */ | |
341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
342 | 16, /* bitsize */ | |
343 | FALSE, /* pc_relative */ | |
344 | 0, /* bitpos */ | |
345 | complain_overflow_dont, /* complain_on_overflow */ | |
346 | bfd_elf_generic_reloc, /* special_function */ | |
347 | "R_FRV_FUNCDESC_GOTLO", /* name */ | |
348 | FALSE, /* partial_inplace */ | |
349 | 0xffff, /* src_mask */ | |
350 | 0xffff, /* dst_mask */ | |
351 | FALSE), /* pcrel_offset */ | |
352 | ||
353 | /* The 32-bit address of the canonical descriptor of a function. */ | |
354 | HOWTO (R_FRV_FUNCDESC_VALUE, /* type */ | |
355 | 0, /* rightshift */ | |
356 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
357 | 64, /* bitsize */ | |
358 | FALSE, /* pc_relative */ | |
359 | 0, /* bitpos */ | |
360 | complain_overflow_bitfield, /* complain_on_overflow */ | |
361 | bfd_elf_generic_reloc, /* special_function */ | |
362 | "R_FRV_FUNCDESC_VALUE", /* name */ | |
363 | FALSE, /* partial_inplace */ | |
364 | 0xffffffff, /* src_mask */ | |
365 | 0xffffffff, /* dst_mask */ | |
366 | FALSE), /* pcrel_offset */ | |
367 | ||
368 | /* A 12-bit signed operand with the GOT offset for the address of | |
369 | canonical descriptor of a function. */ | |
370 | HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */ | |
371 | 0, /* rightshift */ | |
372 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
373 | 12, /* bitsize */ | |
374 | FALSE, /* pc_relative */ | |
375 | 0, /* bitpos */ | |
376 | complain_overflow_signed, /* complain_on_overflow */ | |
377 | bfd_elf_generic_reloc, /* special_function */ | |
378 | "R_FRV_FUNCDESC_GOTOFF12", /* name */ | |
379 | FALSE, /* partial_inplace */ | |
380 | 0xfff, /* src_mask */ | |
381 | 0xfff, /* dst_mask */ | |
382 | FALSE), /* pcrel_offset */ | |
383 | ||
384 | /* The upper 16 bits of the GOT offset for the address of the | |
385 | canonical descriptor of a function. */ | |
386 | HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */ | |
387 | 0, /* rightshift */ | |
388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
389 | 16, /* bitsize */ | |
390 | FALSE, /* pc_relative */ | |
391 | 0, /* bitpos */ | |
392 | complain_overflow_dont, /* complain_on_overflow */ | |
393 | bfd_elf_generic_reloc, /* special_function */ | |
394 | "R_FRV_FUNCDESC_GOTOFFHI", /* name */ | |
395 | FALSE, /* partial_inplace */ | |
396 | 0xffff, /* src_mask */ | |
397 | 0xffff, /* dst_mask */ | |
398 | FALSE), /* pcrel_offset */ | |
399 | ||
400 | /* The lower 16 bits of the GOT offset for the address of the | |
401 | canonical descriptor of a function. */ | |
402 | HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */ | |
403 | 0, /* rightshift */ | |
404 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
405 | 16, /* bitsize */ | |
406 | FALSE, /* pc_relative */ | |
407 | 0, /* bitpos */ | |
408 | complain_overflow_dont, /* complain_on_overflow */ | |
409 | bfd_elf_generic_reloc, /* special_function */ | |
410 | "R_FRV_FUNCDESC_GOTOFFLO", /* name */ | |
411 | FALSE, /* partial_inplace */ | |
412 | 0xffff, /* src_mask */ | |
413 | 0xffff, /* dst_mask */ | |
414 | FALSE), /* pcrel_offset */ | |
415 | ||
416 | /* A 12-bit signed operand with the GOT offset for the address of | |
417 | the symbol. */ | |
418 | HOWTO (R_FRV_GOTOFF12, /* type */ | |
419 | 0, /* rightshift */ | |
420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
421 | 12, /* bitsize */ | |
422 | FALSE, /* pc_relative */ | |
423 | 0, /* bitpos */ | |
424 | complain_overflow_signed, /* complain_on_overflow */ | |
425 | bfd_elf_generic_reloc, /* special_function */ | |
426 | "R_FRV_GOTOFF12", /* name */ | |
427 | FALSE, /* partial_inplace */ | |
428 | 0xfff, /* src_mask */ | |
429 | 0xfff, /* dst_mask */ | |
430 | FALSE), /* pcrel_offset */ | |
431 | ||
432 | /* The upper 16 bits of the GOT offset for the address of the | |
433 | symbol. */ | |
434 | HOWTO (R_FRV_GOTOFFHI, /* type */ | |
435 | 0, /* rightshift */ | |
436 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
437 | 16, /* bitsize */ | |
438 | FALSE, /* pc_relative */ | |
439 | 0, /* bitpos */ | |
440 | complain_overflow_dont, /* complain_on_overflow */ | |
441 | bfd_elf_generic_reloc, /* special_function */ | |
442 | "R_FRV_GOTOFFHI", /* name */ | |
443 | FALSE, /* partial_inplace */ | |
444 | 0xffff, /* src_mask */ | |
445 | 0xffff, /* dst_mask */ | |
446 | FALSE), /* pcrel_offset */ | |
447 | ||
448 | /* The lower 16 bits of the GOT offset for the address of the | |
449 | symbol. */ | |
450 | HOWTO (R_FRV_GOTOFFLO, /* type */ | |
451 | 0, /* rightshift */ | |
452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
453 | 16, /* bitsize */ | |
454 | FALSE, /* pc_relative */ | |
455 | 0, /* bitpos */ | |
456 | complain_overflow_dont, /* complain_on_overflow */ | |
457 | bfd_elf_generic_reloc, /* special_function */ | |
458 | "R_FRV_GOTOFFLO", /* name */ | |
459 | FALSE, /* partial_inplace */ | |
460 | 0xffff, /* src_mask */ | |
461 | 0xffff, /* dst_mask */ | |
462 | FALSE), /* pcrel_offset */ | |
463 | ||
4e5ba5b7 DB |
464 | }; |
465 | ||
466 | /* GNU extension to record C++ vtable hierarchy. */ | |
467 | static reloc_howto_type elf32_frv_vtinherit_howto = | |
468 | HOWTO (R_FRV_GNU_VTINHERIT, /* type */ | |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 0, /* bitsize */ | |
b34976b6 | 472 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
473 | 0, /* bitpos */ |
474 | complain_overflow_dont, /* complain_on_overflow */ | |
475 | NULL, /* special_function */ | |
476 | "R_FRV_GNU_VTINHERIT", /* name */ | |
b34976b6 | 477 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
478 | 0, /* src_mask */ |
479 | 0, /* dst_mask */ | |
b34976b6 | 480 | FALSE); /* pcrel_offset */ |
4e5ba5b7 DB |
481 | |
482 | /* GNU extension to record C++ vtable member usage. */ | |
483 | static reloc_howto_type elf32_frv_vtentry_howto = | |
484 | HOWTO (R_FRV_GNU_VTENTRY, /* type */ | |
485 | 0, /* rightshift */ | |
486 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
487 | 0, /* bitsize */ | |
b34976b6 | 488 | FALSE, /* pc_relative */ |
4e5ba5b7 DB |
489 | 0, /* bitpos */ |
490 | complain_overflow_dont, /* complain_on_overflow */ | |
491 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
492 | "R_FRV_GNU_VTENTRY", /* name */ | |
b34976b6 | 493 | FALSE, /* partial_inplace */ |
4e5ba5b7 DB |
494 | 0, /* src_mask */ |
495 | 0, /* dst_mask */ | |
b34976b6 | 496 | FALSE); /* pcrel_offset */ |
51532845 AO |
497 | |
498 | /* The following 3 relocations are REL. The only difference to the | |
499 | entries in the table above are that partial_inplace is TRUE. */ | |
500 | static reloc_howto_type elf32_frv_rel_32_howto = | |
501 | HOWTO (R_FRV_32, /* type */ | |
502 | 0, /* rightshift */ | |
503 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
504 | 32, /* bitsize */ | |
505 | FALSE, /* pc_relative */ | |
506 | 0, /* bitpos */ | |
507 | complain_overflow_bitfield, /* complain_on_overflow */ | |
508 | bfd_elf_generic_reloc, /* special_function */ | |
509 | "R_FRV_32", /* name */ | |
510 | TRUE, /* partial_inplace */ | |
511 | 0xffffffff, /* src_mask */ | |
512 | 0xffffffff, /* dst_mask */ | |
513 | FALSE); /* pcrel_offset */ | |
514 | ||
515 | static reloc_howto_type elf32_frv_rel_funcdesc_howto = | |
516 | HOWTO (R_FRV_FUNCDESC, /* type */ | |
517 | 0, /* rightshift */ | |
518 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
519 | 32, /* bitsize */ | |
520 | FALSE, /* pc_relative */ | |
521 | 0, /* bitpos */ | |
522 | complain_overflow_bitfield, /* complain_on_overflow */ | |
523 | bfd_elf_generic_reloc, /* special_function */ | |
524 | "R_FRV_FUNCDESC", /* name */ | |
525 | TRUE, /* partial_inplace */ | |
526 | 0xffffffff, /* src_mask */ | |
527 | 0xffffffff, /* dst_mask */ | |
528 | FALSE); /* pcrel_offset */ | |
529 | ||
530 | static reloc_howto_type elf32_frv_rel_funcdesc_value_howto = | |
531 | HOWTO (R_FRV_FUNCDESC_VALUE, /* type */ | |
532 | 0, /* rightshift */ | |
533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
534 | 64, /* bitsize */ | |
535 | FALSE, /* pc_relative */ | |
536 | 0, /* bitpos */ | |
537 | complain_overflow_bitfield, /* complain_on_overflow */ | |
538 | bfd_elf_generic_reloc, /* special_function */ | |
539 | "R_FRV_FUNCDESC_VALUE", /* name */ | |
540 | TRUE, /* partial_inplace */ | |
541 | 0xffffffff, /* src_mask */ | |
542 | 0xffffffff, /* dst_mask */ | |
543 | FALSE); /* pcrel_offset */ | |
544 | ||
4e5ba5b7 DB |
545 | \f |
546 | /* Map BFD reloc types to FRV ELF reloc types. */ | |
547 | #if 0 | |
548 | struct frv_reloc_map | |
549 | { | |
550 | unsigned int bfd_reloc_val; | |
551 | unsigned int frv_reloc_val; | |
552 | }; | |
553 | ||
554 | static const struct frv_reloc_map frv_reloc_map [] = | |
555 | { | |
556 | { BFD_RELOC_NONE, R_FRV_NONE }, | |
557 | { BFD_RELOC_32, R_FRV_32 }, | |
558 | { BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 }, | |
559 | { BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 }, | |
560 | { BFD_RELOC_FRV_LO16, R_FRV_LO16 }, | |
561 | { BFD_RELOC_FRV_HI16, R_FRV_HI16 }, | |
562 | { BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 }, | |
563 | { BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 }, | |
564 | { BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 }, | |
565 | { BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI }, | |
566 | { BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO }, | |
51532845 AO |
567 | { BFD_RELOC_FRV_GOT12, R_FRV_GOT12 }, |
568 | { BFD_RELOC_FRV_GOTHI, R_FRV_GOTHI }, | |
569 | { BFD_RELOC_FRV_GOTLO, R_FRV_GOTLO }, | |
570 | { BFD_RELOC_FRV_FUNCDESC, R_FRV_FUNCDESC }, | |
571 | { BFD_RELOC_FRV_FUNCDESC_GOT12, R_FRV_FUNCDESC_GOT12 }, | |
572 | { BFD_RELOC_FRV_FUNCDESC_GOTHI, R_FRV_FUNCDESC_GOTHI }, | |
573 | { BFD_RELOC_FRV_FUNCDESC_GOTLO, R_FRV_FUNCDESC_GOTLO }, | |
574 | { BFD_RELOC_FRV_FUNCDESC_VALUE, R_FRV_FUNCDESC_VALUE }, | |
575 | { BFD_RELOC_FRV_FUNCDESC_GOTOFF12, R_FRV_FUNCDESC_GOTOFF12 }, | |
576 | { BFD_RELOC_FRV_FUNCDESC_GOTOFFHI, R_FRV_FUNCDESC_GOTOFFHI }, | |
577 | { BFD_RELOC_FRV_FUNCDESC_GOTOFFLO, R_FRV_FUNCDESC_GOTOFFLO }, | |
578 | { BFD_RELOC_FRV_GOTOFF12, R_FRV_GOTOFF12 }, | |
579 | { BFD_RELOC_FRV_GOTOFFHI, R_FRV_GOTOFFHI }, | |
580 | { BFD_RELOC_FRV_GOTOFFLO, R_FRV_GOTOFFLO }, | |
4e5ba5b7 DB |
581 | { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT }, |
582 | { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY }, | |
583 | }; | |
584 | #endif | |
585 | ||
4e5ba5b7 | 586 | |
51532845 AO |
587 | /* An extension of the elf hash table data structure, containing some |
588 | additional FRV-specific data. */ | |
589 | struct frv_elf_link_hash_table | |
4e5ba5b7 | 590 | { |
51532845 AO |
591 | struct elf_link_hash_table elf; |
592 | ||
593 | /* A pointer to the .got section. */ | |
594 | asection *sgot; | |
595 | /* A pointer to the .rel.got section. */ | |
596 | asection *sgotrel; | |
597 | /* A pointer to the .rofixup section. */ | |
598 | asection *sgotfixup; | |
599 | /* A pointer to the .plt section. */ | |
600 | asection *splt; | |
601 | /* A pointer to the .rel.plt section. */ | |
602 | asection *spltrel; | |
603 | /* GOT base offset. */ | |
604 | bfd_vma got0; | |
605 | /* Location of the first non-lazy PLT entry, i.e., the number of | |
606 | bytes taken by lazy PLT entries. */ | |
607 | bfd_vma plt0; | |
608 | /* A hash table holding information about which symbols were | |
609 | referenced with which PIC-related relocations. */ | |
610 | struct htab *relocs_info; | |
611 | }; | |
4e5ba5b7 | 612 | |
51532845 AO |
613 | /* Get the FRV ELF linker hash table from a link_info structure. */ |
614 | ||
615 | #define frv_hash_table(info) \ | |
616 | ((struct frv_elf_link_hash_table *) ((info)->hash)) | |
617 | ||
618 | #define frv_got_section(info) \ | |
619 | (frv_hash_table (info)->sgot) | |
620 | #define frv_gotrel_section(info) \ | |
621 | (frv_hash_table (info)->sgotrel) | |
622 | #define frv_gotfixup_section(info) \ | |
623 | (frv_hash_table (info)->sgotfixup) | |
624 | #define frv_plt_section(info) \ | |
625 | (frv_hash_table (info)->splt) | |
626 | #define frv_pltrel_section(info) \ | |
627 | (frv_hash_table (info)->spltrel) | |
628 | #define frv_relocs_info(info) \ | |
629 | (frv_hash_table (info)->relocs_info) | |
630 | #define frv_got_initial_offset(info) \ | |
631 | (frv_hash_table (info)->got0) | |
632 | #define frv_plt_initial_offset(info) \ | |
633 | (frv_hash_table (info)->plt0) | |
634 | ||
635 | /* Create an FRV ELF linker hash table. */ | |
636 | ||
637 | static struct bfd_link_hash_table * | |
638 | frv_elf_link_hash_table_create (bfd *abfd) | |
639 | { | |
640 | struct frv_elf_link_hash_table *ret; | |
641 | bfd_size_type amt = sizeof (struct frv_elf_link_hash_table); | |
4e5ba5b7 | 642 | |
51532845 AO |
643 | ret = bfd_zalloc (abfd, amt); |
644 | if (ret == NULL) | |
645 | return NULL; | |
4e5ba5b7 | 646 | |
51532845 AO |
647 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, |
648 | _bfd_elf_link_hash_newfunc)) | |
649 | { | |
650 | free (ret); | |
651 | return NULL; | |
652 | } | |
4e5ba5b7 | 653 | |
51532845 AO |
654 | return &ret->elf.root; |
655 | } | |
4e5ba5b7 | 656 | |
51532845 AO |
657 | /* Decide whether a reference to a symbol can be resolved locally or |
658 | not. If the symbol is protected, we want the local address, but | |
659 | its function descriptor must be assigned by the dynamic linker. */ | |
660 | #define FRV_SYM_LOCAL(INFO, H) \ | |
661 | (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \ | |
662 | || ! elf_hash_table (INFO)->dynamic_sections_created \ | |
51532845 AO |
663 | || (/* The condition below is an ugly hack to get .scommon data to |
664 | be regarded as local. For some reason the | |
665 | ELF_LINK_HASH_DEF_REGULAR bit is not set on such common | |
666 | symbols, and the SEC_IS_COMMON bit is not set any longer | |
667 | when we need to perform this test. Hopefully this | |
668 | approximation is good enough. */ \ | |
669 | ((H)->root.type == bfd_link_hash_defined \ | |
670 | || (H)->root.type == bfd_link_hash_defweak) \ | |
671 | && (H)->root.u.def.section->output_section \ | |
672 | && ((H)->root.u.def.section->flags & SEC_LINKER_CREATED))) | |
673 | #define FRV_FUNCDESC_LOCAL(INFO, H) \ | |
674 | ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created) | |
675 | ||
676 | /* This structure collects information on what kind of GOT, PLT or | |
677 | function descriptors are required by relocations that reference a | |
678 | certain symbol. */ | |
679 | struct frv_pic_relocs_info | |
680 | { | |
681 | /* The index of the symbol, as stored in the relocation r_info, if | |
682 | we have a local symbol; -1 otherwise. */ | |
683 | long symndx; | |
684 | union | |
685 | { | |
686 | /* The input bfd in which the symbol is defined, if it's a local | |
687 | symbol. */ | |
688 | bfd *abfd; | |
689 | /* If symndx == -1, the hash table entry corresponding to a global | |
690 | symbol (even if it turns out to bind locally, in which case it | |
691 | should ideally be replaced with section's symndx + addend). */ | |
692 | struct elf_link_hash_entry *h; | |
693 | } d; | |
694 | /* The addend of the relocation that references the symbol. */ | |
695 | bfd_vma addend; | |
696 | ||
697 | /* The fields above are used to identify an entry. The fields below | |
698 | contain information on how an entry is used and, later on, which | |
699 | locations it was assigned. */ | |
700 | /* The following 3 fields record whether the symbol+addend above was | |
701 | ever referenced with a GOT relocation. The 12 suffix indicates a | |
702 | GOT12 relocation; los is used for GOTLO relocations that are not | |
703 | matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI | |
704 | pairs. */ | |
705 | unsigned got12:1; | |
706 | unsigned gotlos:1; | |
707 | unsigned gothilo:1; | |
708 | /* Whether a FUNCDESC relocation references symbol+addend. */ | |
709 | unsigned fd:1; | |
710 | /* Whether a FUNCDESC_GOT relocation references symbol+addend. */ | |
711 | unsigned fdgot12:1; | |
712 | unsigned fdgotlos:1; | |
713 | unsigned fdgothilo:1; | |
714 | /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */ | |
715 | unsigned fdgoff12:1; | |
716 | unsigned fdgofflos:1; | |
717 | unsigned fdgoffhilo:1; | |
718 | /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or | |
719 | GOTOFFHI relocations. The addend doesn't really matter, since we | |
720 | envision that this will only be used to check whether the symbol | |
721 | is mapped to the same segment as the got. */ | |
722 | unsigned gotoff:1; | |
723 | /* Whether symbol+addend is referenced by a LABEL24 relocation. */ | |
724 | unsigned call:1; | |
725 | /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE | |
726 | relocation. */ | |
727 | unsigned sym:1; | |
728 | /* Whether we need a PLT entry for a symbol. Should be implied by | |
729 | something like: | |
730 | (call && symndx == -1 && ! FRV_SYM_LOCAL (info, d.h)) */ | |
731 | unsigned plt:1; | |
732 | /* Whether a function descriptor should be created in this link unit | |
733 | for symbol+addend. Should be implied by something like: | |
734 | (plt || fdgotoff12 || fdgotofflos || fdgotofflohi | |
735 | || ((fd || fdgot12 || fdgotlos || fdgothilo) | |
736 | && (symndx != -1 || FRV_FUNCDESC_LOCAL (info, d.h)))) */ | |
737 | unsigned privfd:1; | |
738 | /* Whether a lazy PLT entry is needed for this symbol+addend. | |
739 | Should be implied by something like: | |
740 | (privfd && symndx == -1 && ! FRV_SYM_LOCAL (info, d.h) | |
741 | && ! (info->flags & DF_BIND_NOW)) */ | |
742 | unsigned lazyplt:1; | |
743 | /* Whether we've already emitted GOT relocations and PLT entries as | |
744 | needed for this symbol. */ | |
745 | unsigned done:1; | |
746 | ||
747 | /* The number of R_FRV_32, R_FRV_FUNCDESC and R_FRV_FUNCDESC_VALUE | |
748 | relocations referencing the symbol. */ | |
749 | unsigned relocs32, relocsfd, relocsfdv; | |
750 | ||
3b712a1a AO |
751 | /* The number of .rofixups entries and dynamic relocations allocated |
752 | for this symbol, minus any that might have already been used. */ | |
753 | unsigned fixups, dynrelocs; | |
754 | ||
51532845 AO |
755 | /* The offsets of the GOT entries assigned to symbol+addend, to the |
756 | function descriptor's address, and to a function descriptor, | |
757 | respectively. Should be zero if unassigned. The offsets are | |
758 | counted from the value that will be assigned to the PIC register, | |
759 | not from the beginning of the .got section. */ | |
760 | bfd_signed_vma got_entry, fdgot_entry, fd_entry; | |
761 | /* The offsets of the PLT entries assigned to symbol+addend, | |
762 | non-lazy and lazy, respectively. If unassigned, should be | |
763 | (bfd_vma)-1. */ | |
764 | bfd_vma plt_entry, lzplt_entry; | |
765 | }; | |
4e5ba5b7 | 766 | |
51532845 AO |
767 | /* Compute a hash with the key fields of an frv_pic_relocs_info entry. */ |
768 | static hashval_t | |
769 | frv_pic_relocs_info_hash (const void *entry_) | |
770 | { | |
771 | const struct frv_pic_relocs_info *entry = entry_; | |
4e5ba5b7 | 772 | |
51532845 AO |
773 | return (entry->symndx == -1 |
774 | ? entry->d.h->root.root.hash | |
775 | : entry->symndx + entry->d.abfd->id * 257) + entry->addend; | |
4e5ba5b7 DB |
776 | } |
777 | ||
51532845 AO |
778 | /* Test whether the key fields of two frv_pic_relocs_info entries are |
779 | identical. */ | |
780 | static int | |
781 | frv_pic_relocs_info_eq (const void *entry1, const void *entry2) | |
782 | { | |
783 | const struct frv_pic_relocs_info *e1 = entry1; | |
784 | const struct frv_pic_relocs_info *e2 = entry2; | |
4e5ba5b7 | 785 | |
51532845 AO |
786 | return e1->symndx == e2->symndx && e1->addend == e2->addend |
787 | && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd); | |
788 | } | |
789 | ||
790 | /* Find or create an entry in a hash table HT that matches the key | |
791 | fields of the given ENTRY. If it's not found, memory for a new | |
792 | entry is allocated in ABFD's obstack. */ | |
793 | static struct frv_pic_relocs_info * | |
794 | frv_pic_relocs_info_find (struct htab *ht, | |
795 | bfd *abfd, | |
3b712a1a AO |
796 | const struct frv_pic_relocs_info *entry, |
797 | enum insert_option insert) | |
4e5ba5b7 | 798 | { |
51532845 | 799 | struct frv_pic_relocs_info **loc = |
3b712a1a AO |
800 | (struct frv_pic_relocs_info **) htab_find_slot (ht, entry, insert); |
801 | ||
802 | if (! loc) | |
803 | return NULL; | |
4e5ba5b7 | 804 | |
51532845 AO |
805 | if (*loc) |
806 | return *loc; | |
4e5ba5b7 | 807 | |
51532845 | 808 | *loc = bfd_zalloc (abfd, sizeof (**loc)); |
b34976b6 | 809 | |
51532845 AO |
810 | if (! *loc) |
811 | return *loc; | |
812 | ||
813 | (*loc)->symndx = entry->symndx; | |
814 | (*loc)->d = entry->d; | |
815 | (*loc)->addend = entry->addend; | |
816 | (*loc)->plt_entry = (bfd_vma)-1; | |
817 | (*loc)->lzplt_entry = (bfd_vma)-1; | |
818 | ||
819 | return *loc; | |
820 | } | |
821 | ||
822 | /* Obtain the address of the entry in HT associated with H's symbol + | |
823 | addend, creating a new entry if none existed. ABFD is only used | |
824 | for memory allocation purposes. */ | |
825 | inline static struct frv_pic_relocs_info * | |
826 | frv_pic_relocs_info_for_global (struct htab *ht, | |
827 | bfd *abfd, | |
828 | struct elf_link_hash_entry *h, | |
3b712a1a AO |
829 | bfd_vma addend, |
830 | enum insert_option insert) | |
51532845 AO |
831 | { |
832 | struct frv_pic_relocs_info entry; | |
833 | ||
834 | entry.symndx = -1; | |
835 | entry.d.h = h; | |
836 | entry.addend = addend; | |
837 | ||
3b712a1a | 838 | return frv_pic_relocs_info_find (ht, abfd, &entry, insert); |
51532845 AO |
839 | } |
840 | ||
841 | /* Obtain the address of the entry in HT associated with the SYMNDXth | |
842 | local symbol of the input bfd ABFD, plus the addend, creating a new | |
843 | entry if none existed. */ | |
844 | inline static struct frv_pic_relocs_info * | |
845 | frv_pic_relocs_info_for_local (struct htab *ht, | |
846 | bfd *abfd, | |
847 | long symndx, | |
3b712a1a AO |
848 | bfd_vma addend, |
849 | enum insert_option insert) | |
51532845 AO |
850 | { |
851 | struct frv_pic_relocs_info entry; | |
852 | ||
853 | entry.symndx = symndx; | |
854 | entry.d.abfd = abfd; | |
855 | entry.addend = addend; | |
856 | ||
3b712a1a AO |
857 | return frv_pic_relocs_info_find (ht, abfd, &entry, insert); |
858 | } | |
859 | ||
860 | /* Merge fields set by check_relocs() of two entries that end up being | |
861 | mapped to the same (presumably global) symbol. */ | |
862 | ||
863 | inline static void | |
864 | frv_pic_merge_early_relocs_info (struct frv_pic_relocs_info *e2, | |
865 | struct frv_pic_relocs_info const *e1) | |
866 | { | |
867 | e2->got12 |= e1->got12; | |
868 | e2->gotlos |= e1->gotlos; | |
869 | e2->gothilo |= e1->gothilo; | |
870 | e2->fd |= e1->fd; | |
871 | e2->fdgot12 |= e1->fdgot12; | |
872 | e2->fdgotlos |= e1->fdgotlos; | |
873 | e2->fdgothilo |= e1->fdgothilo; | |
874 | e2->fdgoff12 |= e1->fdgoff12; | |
875 | e2->fdgofflos |= e1->fdgofflos; | |
876 | e2->fdgoffhilo |= e1->fdgoffhilo; | |
877 | e2->gotoff |= e1->gotoff; | |
878 | e2->call |= e1->call; | |
879 | e2->sym |= e1->sym; | |
880 | ||
881 | #if 0 | |
882 | /* These are set in _frv_count_got_plt_entries() or later, and this | |
883 | function is only called in _frv_resolve_final_relocs_info(), that | |
884 | runs just before it, so we don't have to worry about the fields | |
885 | below. */ | |
886 | ||
887 | e2->plt |= e1->plt; | |
888 | e2->privfd |= e1->privfd; | |
889 | e2->lazyplt |= e1->lazyplt; | |
890 | e2->done |= e1->done; | |
891 | ||
892 | e2->relocs32 += e1->relocs32; | |
893 | e2->relocsfd += e1->relocsfd; | |
894 | e2->relocsfdv += e1->relocsfdv; | |
895 | e2->fixups += e1->fixups; | |
896 | e2->dynrelocs += e1->dynrelocs; | |
897 | ||
898 | if (abs (e1->got_entry) < abs (e2->got_entry)) | |
899 | e2->got_entry = e1->got_entry; | |
900 | if (abs (e1->fdgot_entry) < abs (e2->fdgot_entry)) | |
901 | e2->fdgot_entry = e1->fdgot_entry; | |
902 | if (abs (e1->fd_entry) < abs (e2->fd_entry)) | |
903 | e2->fd_entry = e1->fd_entry; | |
904 | ||
905 | if (e1->plt_entry < e2->plt_entry) | |
906 | e2->plt_entry = e1->plt_entry; | |
907 | if (e1->lzplt_entry < e2->lzplt_entry) | |
908 | e2->lzplt_entry = e1->lzplt_entry; | |
909 | #endif | |
51532845 AO |
910 | } |
911 | ||
912 | /* Every block of 65535 lazy PLT entries shares a single call to the | |
913 | resolver, inserted in the 32768th lazy PLT entry (i.e., entry # | |
914 | 32767, counting from 0). All other lazy PLT entries branch to it | |
915 | in a single instruction. */ | |
916 | ||
917 | #define FRV_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4) | |
918 | #define FRV_LZPLT_RESOLV_LOC (8 * 32767) | |
919 | ||
920 | /* Add a dynamic relocation to the SRELOC section. */ | |
921 | ||
922 | inline static bfd_vma | |
923 | _frv_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset, | |
3b712a1a AO |
924 | int reloc_type, long dynindx, bfd_vma addend, |
925 | struct frv_pic_relocs_info *entry) | |
51532845 AO |
926 | { |
927 | Elf_Internal_Rela outrel; | |
928 | bfd_vma reloc_offset; | |
929 | ||
930 | outrel.r_offset = offset; | |
931 | outrel.r_info = ELF32_R_INFO (dynindx, reloc_type); | |
932 | outrel.r_addend = addend; | |
933 | ||
934 | reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel); | |
935 | BFD_ASSERT (reloc_offset < sreloc->_raw_size); | |
936 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, | |
937 | sreloc->contents + reloc_offset); | |
938 | sreloc->reloc_count++; | |
939 | ||
3b712a1a AO |
940 | BFD_ASSERT (entry->dynrelocs > 0); |
941 | entry->dynrelocs--; | |
942 | ||
51532845 AO |
943 | return reloc_offset; |
944 | } | |
945 | ||
946 | /* Add a fixup to the ROFIXUP section. */ | |
947 | ||
948 | static bfd_vma | |
3b712a1a AO |
949 | _frv_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset, |
950 | struct frv_pic_relocs_info *entry) | |
51532845 AO |
951 | { |
952 | bfd_vma fixup_offset; | |
953 | ||
954 | if (rofixup->flags & SEC_EXCLUDE) | |
955 | return -1; | |
956 | ||
957 | fixup_offset = rofixup->reloc_count * 4; | |
958 | if (rofixup->contents) | |
959 | { | |
960 | BFD_ASSERT (fixup_offset < rofixup->_raw_size); | |
961 | bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset); | |
962 | } | |
963 | rofixup->reloc_count++; | |
3b712a1a AO |
964 | |
965 | if (entry) | |
966 | { | |
967 | BFD_ASSERT (entry->fixups > 0); | |
968 | entry->fixups--; | |
969 | } | |
970 | ||
51532845 AO |
971 | return fixup_offset; |
972 | } | |
973 | ||
974 | /* Find the segment number in which OSEC, and output section, is | |
975 | located. */ | |
976 | ||
977 | static unsigned | |
978 | _frv_osec_to_segment (bfd *output_bfd, asection *osec) | |
979 | { | |
980 | struct elf_segment_map *m; | |
981 | Elf_Internal_Phdr *p; | |
982 | ||
983 | /* Find the segment that contains the output_section. */ | |
984 | for (m = elf_tdata (output_bfd)->segment_map, | |
985 | p = elf_tdata (output_bfd)->phdr; | |
986 | m != NULL; | |
987 | m = m->next, p++) | |
988 | { | |
989 | int i; | |
990 | ||
991 | for (i = m->count - 1; i >= 0; i--) | |
992 | if (m->sections[i] == osec) | |
993 | break; | |
994 | ||
995 | if (i >= 0) | |
996 | break; | |
997 | } | |
998 | ||
999 | return p - elf_tdata (output_bfd)->phdr; | |
1000 | } | |
1001 | ||
1002 | inline static bfd_boolean | |
1003 | _frv_osec_readonly_p (bfd *output_bfd, asection *osec) | |
1004 | { | |
1005 | unsigned seg = _frv_osec_to_segment (output_bfd, osec); | |
1006 | ||
1007 | return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W); | |
1008 | } | |
1009 | ||
1010 | /* Generate relocations for GOT entries, function descriptors, and | |
1011 | code for PLT and lazy PLT entries. */ | |
1012 | ||
1013 | inline static bfd_boolean | |
1014 | _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, | |
1015 | bfd *output_bfd, | |
1016 | struct bfd_link_info *info, | |
1017 | asection *sec, | |
1018 | Elf_Internal_Sym *sym, | |
1019 | bfd_vma addend) | |
1020 | ||
1021 | { | |
1022 | bfd_vma fd_lazy_rel_offset = (bfd_vma)-1; | |
1023 | int dynindx = -1; | |
1024 | ||
1025 | if (entry->done) | |
1026 | return TRUE; | |
1027 | entry->done = 1; | |
1028 | ||
1029 | if (entry->got_entry || entry->fdgot_entry || entry->fd_entry) | |
1030 | { | |
1031 | /* If the symbol is dynamic, consider it for dynamic | |
1032 | relocations, otherwise decay to section + offset. */ | |
1033 | if (entry->symndx == -1 && entry->d.h->dynindx != -1) | |
1034 | dynindx = entry->d.h->dynindx; | |
1035 | else | |
1036 | { | |
1037 | if (sec->output_section | |
1038 | && ! bfd_is_abs_section (sec->output_section) | |
1039 | && ! bfd_is_und_section (sec->output_section)) | |
1040 | dynindx = elf_section_data (sec->output_section)->dynindx; | |
1041 | else | |
1042 | dynindx = 0; | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | /* Generate relocation for GOT entry pointing to the symbol. */ | |
1047 | if (entry->got_entry) | |
1048 | { | |
1049 | int idx = dynindx; | |
1050 | bfd_vma ad = addend; | |
1051 | ||
1052 | /* If the symbol is dynamic but binds locally, use | |
1053 | section+offset. */ | |
1054 | if (sec && (entry->symndx != -1 || FRV_SYM_LOCAL (info, entry->d.h))) | |
1055 | { | |
1056 | if (entry->symndx == -1) | |
1057 | ad += entry->d.h->root.u.def.value; | |
1058 | else | |
1059 | ad += sym->st_value; | |
1060 | ad += sec->output_offset; | |
1061 | if (sec->output_section && elf_section_data (sec->output_section)) | |
1062 | idx = elf_section_data (sec->output_section)->dynindx; | |
1063 | else | |
1064 | idx = 0; | |
1065 | } | |
1066 | ||
1067 | /* If we're linking an executable at a fixed address, we can | |
1068 | omit the dynamic relocation as long as the symbol is local to | |
1069 | this module. */ | |
1070 | if (info->executable && !info->pie | |
1071 | && (entry->symndx != -1 || FRV_SYM_LOCAL (info, entry->d.h))) | |
1072 | { | |
1073 | if (sec) | |
1074 | ad += sec->output_section->vma; | |
3b712a1a AO |
1075 | if (entry->symndx != -1 |
1076 | || entry->d.h->root.type != bfd_link_hash_undefweak) | |
51532845 AO |
1077 | _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), |
1078 | frv_got_section (info)->output_section->vma | |
1079 | + frv_got_section (info)->output_offset | |
1080 | + frv_got_initial_offset (info) | |
3b712a1a | 1081 | + entry->got_entry, entry); |
51532845 AO |
1082 | } |
1083 | else | |
1084 | _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), | |
1085 | _bfd_elf_section_offset | |
1086 | (output_bfd, info, | |
1087 | frv_got_section (info), | |
1088 | frv_got_initial_offset (info) | |
1089 | + entry->got_entry) | |
1090 | + frv_got_section (info)->output_section->vma | |
1091 | + frv_got_section (info)->output_offset, | |
3b712a1a | 1092 | R_FRV_32, idx, ad, entry); |
51532845 AO |
1093 | |
1094 | bfd_put_32 (output_bfd, ad, | |
1095 | frv_got_section (info)->contents | |
1096 | + frv_got_initial_offset (info) | |
1097 | + entry->got_entry); | |
1098 | } | |
1099 | ||
1100 | /* Generate relocation for GOT entry pointing to a canonical | |
1101 | function descriptor. */ | |
1102 | if (entry->fdgot_entry) | |
1103 | { | |
1104 | int reloc, idx; | |
072c8903 | 1105 | bfd_vma ad = 0; |
51532845 | 1106 | |
072c8903 AO |
1107 | if (! (entry->symndx == -1 |
1108 | && entry->d.h->root.type == bfd_link_hash_undefweak | |
1109 | && FRV_SYM_LOCAL (info, entry->d.h))) | |
51532845 | 1110 | { |
072c8903 AO |
1111 | /* If the symbol is dynamic and there may be dynamic symbol |
1112 | resolution because we are, or are linked with, a shared | |
1113 | library, emit a FUNCDESC relocation such that the dynamic | |
1114 | linker will allocate the function descriptor. If the | |
1115 | symbol needs a non-local function descriptor but binds | |
1116 | locally (e.g., its visibility is protected, emit a | |
1117 | dynamic relocation decayed to section+offset. */ | |
1118 | if (entry->symndx == -1 && ! FRV_FUNCDESC_LOCAL (info, entry->d.h) | |
1119 | && FRV_SYM_LOCAL (info, entry->d.h) | |
1120 | && !(info->executable && !info->pie)) | |
1121 | { | |
1122 | reloc = R_FRV_FUNCDESC; | |
1123 | idx = elf_section_data (entry->d.h->root.u.def.section | |
1124 | ->output_section)->dynindx; | |
1125 | ad = entry->d.h->root.u.def.section->output_offset | |
1126 | + entry->d.h->root.u.def.value; | |
1127 | } | |
1128 | else if (entry->symndx == -1 | |
1129 | && ! FRV_FUNCDESC_LOCAL (info, entry->d.h)) | |
1130 | { | |
1131 | reloc = R_FRV_FUNCDESC; | |
1132 | idx = dynindx; | |
1133 | ad = addend; | |
1134 | if (ad) | |
1135 | return FALSE; | |
1136 | } | |
51532845 | 1137 | else |
072c8903 AO |
1138 | { |
1139 | /* Otherwise, we know we have a private function descriptor, | |
1140 | so reference it directly. */ | |
1141 | if (elf_hash_table (info)->dynamic_sections_created) | |
1142 | BFD_ASSERT (entry->privfd); | |
1143 | reloc = R_FRV_32; | |
1144 | idx = elf_section_data (frv_got_section (info) | |
1145 | ->output_section)->dynindx; | |
1146 | ad = frv_got_section (info)->output_offset | |
1147 | + frv_got_initial_offset (info) + entry->fd_entry; | |
1148 | } | |
1149 | ||
1150 | /* If there is room for dynamic symbol resolution, emit the | |
1151 | dynamic relocation. However, if we're linking an | |
1152 | executable at a fixed location, we won't have emitted a | |
1153 | dynamic symbol entry for the got section, so idx will be | |
1154 | zero, which means we can and should compute the address | |
1155 | of the private descriptor ourselves. */ | |
1156 | if (info->executable && !info->pie | |
1157 | && (entry->symndx != -1 | |
1158 | || FRV_FUNCDESC_LOCAL (info, entry->d.h))) | |
51532845 AO |
1159 | { |
1160 | ad += frv_got_section (info)->output_section->vma; | |
1161 | _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), | |
1162 | frv_got_section (info)->output_section->vma | |
1163 | + frv_got_section (info)->output_offset | |
1164 | + frv_got_initial_offset (info) | |
3b712a1a | 1165 | + entry->fdgot_entry, entry); |
51532845 | 1166 | } |
072c8903 AO |
1167 | else |
1168 | _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), | |
1169 | _bfd_elf_section_offset | |
1170 | (output_bfd, info, | |
1171 | frv_got_section (info), | |
1172 | frv_got_initial_offset (info) | |
1173 | + entry->fdgot_entry) | |
1174 | + frv_got_section (info)->output_section->vma | |
1175 | + frv_got_section (info)->output_offset, | |
3b712a1a | 1176 | reloc, idx, ad, entry); |
51532845 | 1177 | } |
51532845 AO |
1178 | |
1179 | bfd_put_32 (output_bfd, ad, | |
1180 | frv_got_section (info)->contents | |
1181 | + frv_got_initial_offset (info) | |
1182 | + entry->fdgot_entry); | |
1183 | } | |
1184 | ||
1185 | /* Generate relocation to fill in a private function descriptor in | |
1186 | the GOT. */ | |
1187 | if (entry->fd_entry) | |
1188 | { | |
1189 | int idx = dynindx; | |
1190 | bfd_vma ad = addend; | |
1191 | bfd_vma ofst; | |
1192 | long lowword, highword; | |
1193 | ||
1194 | /* If the symbol is dynamic but binds locally, use | |
1195 | section+offset. */ | |
1196 | if (sec && (entry->symndx != -1 || FRV_SYM_LOCAL (info, entry->d.h))) | |
1197 | { | |
1198 | if (entry->symndx == -1) | |
1199 | ad += entry->d.h->root.u.def.value; | |
1200 | else | |
1201 | ad += sym->st_value; | |
1202 | ad += sec->output_offset; | |
1203 | if (sec->output_section && elf_section_data (sec->output_section)) | |
1204 | idx = elf_section_data (sec->output_section)->dynindx; | |
1205 | else | |
1206 | idx = 0; | |
1207 | } | |
1208 | ||
1209 | /* If we're linking an executable at a fixed address, we can | |
1210 | omit the dynamic relocation as long as the symbol is local to | |
1211 | this module. */ | |
1212 | if (info->executable && !info->pie | |
1213 | && (entry->symndx != -1 || FRV_SYM_LOCAL (info, entry->d.h))) | |
1214 | { | |
1215 | if (sec) | |
1216 | ad += sec->output_section->vma; | |
1217 | ofst = 0; | |
3b712a1a AO |
1218 | if (entry->symndx != -1 |
1219 | || entry->d.h->root.type != bfd_link_hash_undefweak) | |
51532845 AO |
1220 | { |
1221 | _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), | |
1222 | frv_got_section (info)->output_section->vma | |
1223 | + frv_got_section (info)->output_offset | |
1224 | + frv_got_initial_offset (info) | |
3b712a1a | 1225 | + entry->fd_entry, entry); |
51532845 AO |
1226 | _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), |
1227 | frv_got_section (info)->output_section->vma | |
1228 | + frv_got_section (info)->output_offset | |
1229 | + frv_got_initial_offset (info) | |
3b712a1a | 1230 | + entry->fd_entry + 4, entry); |
51532845 AO |
1231 | } |
1232 | } | |
1233 | else | |
1234 | { | |
1235 | ofst = | |
1236 | _frv_add_dyn_reloc (output_bfd, | |
1237 | entry->lazyplt ? frv_pltrel_section (info) | |
1238 | : frv_gotrel_section (info), | |
1239 | _bfd_elf_section_offset | |
1240 | (output_bfd, info, | |
1241 | frv_got_section (info), | |
1242 | frv_got_initial_offset (info) | |
1243 | + entry->fd_entry) | |
1244 | + frv_got_section (info)->output_section->vma | |
1245 | + frv_got_section (info)->output_offset, | |
3b712a1a | 1246 | R_FRV_FUNCDESC_VALUE, idx, ad, entry); |
51532845 AO |
1247 | } |
1248 | ||
1249 | /* If we've omitted the dynamic relocation, just emit the fixed | |
1250 | addresses of the symbol and of the local GOT base offset. */ | |
1251 | if (info->executable && !info->pie && sec && sec->output_section) | |
1252 | { | |
1253 | lowword = ad; | |
1254 | highword = frv_got_section (info)->output_section->vma | |
1255 | + frv_got_section (info)->output_offset | |
1256 | + frv_got_initial_offset (info); | |
1257 | } | |
1258 | else if (entry->lazyplt) | |
1259 | { | |
1260 | if (ad) | |
1261 | return FALSE; | |
1262 | ||
1263 | fd_lazy_rel_offset = ofst; | |
1264 | ||
1265 | /* A function descriptor used for lazy or local resolving is | |
1266 | initialized such that its high word contains the output | |
1267 | section index in which the PLT entries are located, and | |
1268 | the low word contains the address of the lazy PLT entry | |
1269 | entry point, that must be within the memory region | |
1270 | assigned to that section. */ | |
1271 | lowword = entry->lzplt_entry + 4 | |
1272 | + frv_plt_section (info)->output_offset | |
1273 | + frv_plt_section (info)->output_section->vma; | |
1274 | highword = _frv_osec_to_segment | |
1275 | (output_bfd, frv_plt_section (info)->output_section); | |
1276 | } | |
1277 | else | |
1278 | { | |
1279 | /* A function descriptor for a local function gets the index | |
1280 | of the section. For a non-local function, it's | |
1281 | disregarded. */ | |
1282 | lowword = ad; | |
1283 | if (entry->symndx == -1 && entry->d.h->dynindx != -1 | |
1284 | && entry->d.h->dynindx == idx) | |
1285 | highword = 0; | |
1286 | else | |
1287 | highword = _frv_osec_to_segment (output_bfd, sec->output_section); | |
1288 | } | |
1289 | ||
1290 | bfd_put_32 (output_bfd, lowword, | |
1291 | frv_got_section (info)->contents | |
1292 | + frv_got_initial_offset (info) | |
1293 | + entry->fd_entry); | |
1294 | bfd_put_32 (output_bfd, highword, | |
1295 | frv_got_section (info)->contents | |
1296 | + frv_got_initial_offset (info) | |
1297 | + entry->fd_entry + 4); | |
1298 | } | |
1299 | ||
1300 | /* Generate code for the PLT entry. */ | |
1301 | if (entry->plt_entry != (bfd_vma) -1) | |
1302 | { | |
1303 | bfd_byte *plt_code = frv_plt_section (info)->contents + entry->plt_entry; | |
1304 | ||
1305 | BFD_ASSERT (entry->fd_entry); | |
1306 | ||
1307 | /* Figure out what kind of PLT entry we need, depending on the | |
1308 | location of the function descriptor within the GOT. */ | |
1309 | if (entry->fd_entry >= -(1 << (12 - 1)) | |
1310 | && entry->fd_entry < (1 << (12 - 1))) | |
1311 | { | |
1312 | /* lddi @(gr15, fd_entry), gr14 */ | |
1313 | bfd_put_32 (output_bfd, | |
1314 | 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)), | |
1315 | plt_code); | |
1316 | plt_code += 4; | |
1317 | } | |
1318 | else | |
1319 | { | |
1320 | if (entry->fd_entry >= -(1 << (16 - 1)) | |
1321 | && entry->fd_entry < (1 << (16 - 1))) | |
1322 | { | |
1323 | /* setlos lo(fd_entry), gr14 */ | |
1324 | bfd_put_32 (output_bfd, | |
1325 | 0x9cfc0000 | |
1326 | | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)), | |
1327 | plt_code); | |
1328 | plt_code += 4; | |
1329 | } | |
1330 | else | |
1331 | { | |
1332 | /* sethi.p hi(fd_entry), gr14 | |
1333 | setlo lo(fd_entry), gr14 */ | |
1334 | bfd_put_32 (output_bfd, | |
1335 | 0x1cf80000 | |
1336 | | ((entry->fd_entry >> 16) | |
1337 | & (((bfd_vma)1 << 16) - 1)), | |
1338 | plt_code); | |
1339 | bfd_put_32 (output_bfd, | |
1340 | 0x9cf40000 | |
1341 | | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)), | |
1342 | plt_code); | |
1343 | plt_code += 8; | |
1344 | } | |
1345 | /* ldd @(gr14,gr15),gr14 */ | |
1346 | bfd_put_32 (output_bfd, 0x9c08e14f, plt_code); | |
1347 | plt_code += 4; | |
1348 | } | |
1349 | /* jmpl @(gr14,gr0) */ | |
1350 | bfd_put_32 (output_bfd, 0x8030e000, plt_code); | |
1351 | } | |
1352 | ||
1353 | /* Generate code for the lazy PLT entry. */ | |
1354 | if (entry->lzplt_entry != (bfd_vma) -1) | |
1355 | { | |
1356 | bfd_byte *lzplt_code = frv_plt_section (info)->contents | |
1357 | + entry->lzplt_entry; | |
1358 | bfd_vma resolverStub_addr; | |
1359 | ||
1360 | bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code); | |
1361 | lzplt_code += 4; | |
1362 | ||
1363 | resolverStub_addr = entry->lzplt_entry / FRV_LZPLT_BLOCK_SIZE | |
1364 | * FRV_LZPLT_BLOCK_SIZE + FRV_LZPLT_RESOLV_LOC; | |
1365 | if (resolverStub_addr >= frv_plt_initial_offset (info)) | |
1366 | resolverStub_addr = frv_plt_initial_offset (info) - 12; | |
1367 | ||
1368 | if (entry->lzplt_entry == resolverStub_addr) | |
1369 | { | |
1370 | /* This is a lazy PLT entry that includes a resolver call. */ | |
1371 | /* ldd @(gr15,gr0), gr4 | |
1372 | jmpl @(gr4,gr0) */ | |
1373 | bfd_put_32 (output_bfd, 0x8808f140, lzplt_code); | |
1374 | bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4); | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | /* bra resolverStub */ | |
1379 | bfd_put_32 (output_bfd, | |
1380 | 0xc01a0000 | |
1381 | | (((resolverStub_addr - entry->lzplt_entry) | |
1382 | / 4) & (((bfd_vma)1 << 16) - 1)), | |
1383 | lzplt_code); | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | return TRUE; | |
1388 | } | |
1389 | ||
1390 | /* Handle an FRV small data reloc. */ | |
1391 | ||
1392 | static bfd_reloc_status_type | |
1393 | elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation, | |
1394 | contents, value) | |
1395 | struct bfd_link_info *info; | |
1396 | bfd *input_bfd; | |
1397 | asection *input_section; | |
1398 | Elf_Internal_Rela *relocation; | |
1399 | bfd_byte *contents; | |
1400 | bfd_vma value; | |
1401 | { | |
1402 | bfd_vma insn; | |
1403 | bfd_vma gp; | |
1404 | struct bfd_link_hash_entry *h; | |
1405 | ||
1406 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); | |
1407 | ||
1408 | gp = (h->u.def.value | |
1409 | + h->u.def.section->output_section->vma | |
1410 | + h->u.def.section->output_offset); | |
1411 | ||
1412 | value -= input_section->output_section->vma; | |
1413 | value -= (gp - input_section->output_section->vma); | |
1414 | ||
1415 | insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); | |
1416 | ||
1417 | value += relocation->r_addend; | |
1418 | ||
1419 | if ((long) value > 0x7ff || (long) value < -0x800) | |
1420 | return bfd_reloc_overflow; | |
1421 | ||
1422 | bfd_put_32 (input_bfd, | |
1423 | (insn & 0xfffff000) | (value & 0xfff), | |
1424 | contents + relocation->r_offset); | |
1425 | ||
1426 | return bfd_reloc_ok; | |
1427 | } | |
1428 | ||
1429 | /* Handle an FRV small data reloc. for the u12 field. */ | |
1430 | ||
1431 | static bfd_reloc_status_type | |
1432 | elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation, | |
1433 | contents, value) | |
1434 | struct bfd_link_info *info; | |
1435 | bfd *input_bfd; | |
1436 | asection *input_section; | |
1437 | Elf_Internal_Rela *relocation; | |
1438 | bfd_byte *contents; | |
1439 | bfd_vma value; | |
1440 | { | |
1441 | bfd_vma insn; | |
1442 | bfd_vma gp; | |
1443 | struct bfd_link_hash_entry *h; | |
1444 | bfd_vma mask; | |
1445 | ||
1446 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); | |
1447 | ||
1448 | gp = (h->u.def.value | |
1449 | + h->u.def.section->output_section->vma | |
1450 | + h->u.def.section->output_offset); | |
1451 | ||
1452 | value -= input_section->output_section->vma; | |
1453 | value -= (gp - input_section->output_section->vma); | |
4e5ba5b7 DB |
1454 | |
1455 | insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); | |
1456 | ||
1457 | value += relocation->r_addend; | |
1458 | ||
1459 | if ((long) value > 0x7ff || (long) value < -0x800) | |
1460 | return bfd_reloc_overflow; | |
1461 | ||
1462 | /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */ | |
1463 | mask = 0x3f03f; | |
1464 | insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f); | |
1465 | ||
1466 | bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); | |
1467 | ||
1468 | return bfd_reloc_ok; | |
1469 | } | |
1470 | ||
1471 | /* Handle an FRV ELF HI16 reloc. */ | |
1472 | ||
1473 | static bfd_reloc_status_type | |
1474 | elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value) | |
1475 | bfd *input_bfd; | |
1476 | Elf_Internal_Rela *relhi; | |
1477 | bfd_byte *contents; | |
1478 | bfd_vma value; | |
1479 | { | |
1480 | bfd_vma insn; | |
1481 | ||
1482 | insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); | |
1483 | ||
1484 | value += relhi->r_addend; | |
1485 | value = ((value >> 16) & 0xffff); | |
1486 | ||
1487 | insn = (insn & 0xffff0000) | value; | |
1488 | ||
1489 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1490 | return bfd_reloc_overflow; | |
1491 | ||
1492 | bfd_put_32 (input_bfd, insn, contents + relhi->r_offset); | |
1493 | return bfd_reloc_ok; | |
1494 | ||
1495 | } | |
1496 | static bfd_reloc_status_type | |
1497 | elf32_frv_relocate_lo16 (input_bfd, rello, contents, value) | |
1498 | bfd *input_bfd; | |
1499 | Elf_Internal_Rela *rello; | |
1500 | bfd_byte *contents; | |
1501 | bfd_vma value; | |
1502 | { | |
1503 | bfd_vma insn; | |
1504 | ||
1505 | insn = bfd_get_32 (input_bfd, contents + rello->r_offset); | |
1506 | ||
1507 | value += rello->r_addend; | |
1508 | value = value & 0xffff; | |
1509 | ||
1510 | insn = (insn & 0xffff0000) | value; | |
1511 | ||
1512 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1513 | return bfd_reloc_overflow; | |
1514 | ||
1515 | bfd_put_32 (input_bfd, insn, contents + rello->r_offset); | |
1516 | return bfd_reloc_ok; | |
1517 | } | |
1518 | ||
1519 | /* Perform the relocation for the CALL label24 instruction. */ | |
1520 | ||
1521 | static bfd_reloc_status_type | |
1522 | elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value) | |
1523 | bfd *input_bfd; | |
1524 | asection *input_section; | |
1525 | Elf_Internal_Rela *rello; | |
1526 | bfd_byte *contents; | |
1527 | bfd_vma value; | |
1528 | { | |
1529 | bfd_vma insn; | |
1530 | bfd_vma label6; | |
1531 | bfd_vma label18; | |
1532 | ||
1533 | /* The format for the call instruction is: | |
1534 | ||
b34976b6 | 1535 | 0 000000 0001111 000000000000000000 |
4e5ba5b7 DB |
1536 | label6 opcode label18 |
1537 | ||
1538 | The branch calculation is: pc + (4*label24) | |
1539 | where label24 is the concatenation of label6 and label18. */ | |
1540 | ||
1541 | /* Grab the instruction. */ | |
1542 | insn = bfd_get_32 (input_bfd, contents + rello->r_offset); | |
1543 | ||
1544 | value -= input_section->output_section->vma + input_section->output_offset; | |
1545 | value -= rello->r_offset; | |
1546 | value += rello->r_addend; | |
1547 | ||
1548 | value = value >> 2; | |
1549 | ||
1550 | label6 = value & 0xfc0000; | |
1551 | label6 = label6 << 7; | |
1552 | ||
1553 | label18 = value & 0x3ffff; | |
1554 | ||
1555 | insn = insn & 0x803c0000; | |
1556 | insn = insn | label6; | |
1557 | insn = insn | label18; | |
1558 | ||
1559 | bfd_put_32 (input_bfd, insn, contents + rello->r_offset); | |
1560 | ||
1561 | return bfd_reloc_ok; | |
1562 | } | |
1563 | ||
1564 | static bfd_reloc_status_type | |
b34976b6 AM |
1565 | elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation, |
1566 | contents, value) | |
4e5ba5b7 DB |
1567 | struct bfd_link_info *info; |
1568 | bfd *input_bfd; | |
1569 | asection *input_section; | |
1570 | Elf_Internal_Rela *relocation; | |
1571 | bfd_byte *contents; | |
1572 | bfd_vma value; | |
1573 | { | |
1574 | bfd_vma insn; | |
1575 | bfd_vma gp; | |
1576 | struct bfd_link_hash_entry *h; | |
1577 | ||
b34976b6 | 1578 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
4e5ba5b7 DB |
1579 | |
1580 | gp = (h->u.def.value | |
1581 | + h->u.def.section->output_section->vma | |
1582 | + h->u.def.section->output_offset); | |
1583 | ||
1584 | value -= input_section->output_section->vma; | |
1585 | value -= (gp - input_section->output_section->vma); | |
1586 | value += relocation->r_addend; | |
1587 | value = ((value >> 16) & 0xffff); | |
1588 | ||
1589 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1590 | return bfd_reloc_overflow; | |
1591 | ||
1592 | insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); | |
1593 | insn = (insn & 0xffff0000) | value; | |
1594 | ||
1595 | bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); | |
1596 | return bfd_reloc_ok; | |
1597 | } | |
1598 | ||
1599 | static bfd_reloc_status_type | |
b34976b6 AM |
1600 | elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation, |
1601 | contents, value) | |
4e5ba5b7 DB |
1602 | struct bfd_link_info *info; |
1603 | bfd *input_bfd; | |
1604 | asection *input_section; | |
1605 | Elf_Internal_Rela *relocation; | |
1606 | bfd_byte *contents; | |
1607 | bfd_vma value; | |
1608 | { | |
1609 | bfd_vma insn; | |
1610 | bfd_vma gp; | |
1611 | struct bfd_link_hash_entry *h; | |
1612 | ||
b34976b6 | 1613 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
4e5ba5b7 DB |
1614 | |
1615 | gp = (h->u.def.value | |
1616 | + h->u.def.section->output_section->vma | |
1617 | + h->u.def.section->output_offset); | |
1618 | ||
1619 | value -= input_section->output_section->vma; | |
1620 | value -= (gp - input_section->output_section->vma); | |
1621 | value += relocation->r_addend; | |
1622 | value = value & 0xffff; | |
1623 | ||
1624 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1625 | return bfd_reloc_overflow; | |
1626 | ||
1627 | insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); | |
1628 | insn = (insn & 0xffff0000) | value; | |
1629 | ||
1630 | bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); | |
1631 | ||
1632 | return bfd_reloc_ok; | |
1633 | } | |
1634 | ||
1635 | static reloc_howto_type * | |
1636 | frv_reloc_type_lookup (abfd, code) | |
b34976b6 | 1637 | bfd *abfd ATTRIBUTE_UNUSED; |
4e5ba5b7 DB |
1638 | bfd_reloc_code_real_type code; |
1639 | { | |
1640 | switch (code) | |
1641 | { | |
1642 | default: | |
1643 | break; | |
1644 | ||
1645 | case BFD_RELOC_NONE: | |
1646 | return &elf32_frv_howto_table[ (int) R_FRV_NONE]; | |
b34976b6 | 1647 | |
4e5ba5b7 | 1648 | case BFD_RELOC_32: |
51532845 AO |
1649 | if (elf_elfheader (abfd)->e_type == ET_EXEC |
1650 | || elf_elfheader (abfd)->e_type == ET_DYN) | |
1651 | return &elf32_frv_rel_32_howto; | |
1652 | /* Fall through. */ | |
4e5ba5b7 DB |
1653 | case BFD_RELOC_CTOR: |
1654 | return &elf32_frv_howto_table[ (int) R_FRV_32]; | |
1655 | ||
1656 | case BFD_RELOC_FRV_LABEL16: | |
1657 | return &elf32_frv_howto_table[ (int) R_FRV_LABEL16]; | |
1658 | ||
1659 | case BFD_RELOC_FRV_LABEL24: | |
1660 | return &elf32_frv_howto_table[ (int) R_FRV_LABEL24]; | |
1661 | ||
1662 | case BFD_RELOC_FRV_LO16: | |
1663 | return &elf32_frv_howto_table[ (int) R_FRV_LO16]; | |
1664 | ||
1665 | case BFD_RELOC_FRV_HI16: | |
1666 | return &elf32_frv_howto_table[ (int) R_FRV_HI16]; | |
1667 | ||
1668 | case BFD_RELOC_FRV_GPREL12: | |
1669 | return &elf32_frv_howto_table[ (int) R_FRV_GPREL12]; | |
1670 | ||
1671 | case BFD_RELOC_FRV_GPRELU12: | |
1672 | return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12]; | |
1673 | ||
1674 | case BFD_RELOC_FRV_GPREL32: | |
1675 | return &elf32_frv_howto_table[ (int) R_FRV_GPREL32]; | |
1676 | ||
1677 | case BFD_RELOC_FRV_GPRELHI: | |
1678 | return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI]; | |
1679 | ||
1680 | case BFD_RELOC_FRV_GPRELLO: | |
1681 | return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO]; | |
1682 | ||
51532845 AO |
1683 | case BFD_RELOC_FRV_GOT12: |
1684 | return &elf32_frv_howto_table[ (int) R_FRV_GOT12]; | |
1685 | ||
1686 | case BFD_RELOC_FRV_GOTHI: | |
1687 | return &elf32_frv_howto_table[ (int) R_FRV_GOTHI]; | |
1688 | ||
1689 | case BFD_RELOC_FRV_GOTLO: | |
1690 | return &elf32_frv_howto_table[ (int) R_FRV_GOTLO]; | |
1691 | ||
1692 | case BFD_RELOC_FRV_FUNCDESC: | |
1693 | if (elf_elfheader (abfd)->e_type == ET_EXEC | |
1694 | || elf_elfheader (abfd)->e_type == ET_DYN) | |
1695 | return &elf32_frv_rel_funcdesc_howto; | |
1696 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC]; | |
1697 | ||
1698 | case BFD_RELOC_FRV_FUNCDESC_GOT12: | |
1699 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12]; | |
1700 | ||
1701 | case BFD_RELOC_FRV_FUNCDESC_GOTHI: | |
1702 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI]; | |
1703 | ||
1704 | case BFD_RELOC_FRV_FUNCDESC_GOTLO: | |
1705 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO]; | |
1706 | ||
1707 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1708 | if (elf_elfheader (abfd)->e_type == ET_EXEC | |
1709 | || elf_elfheader (abfd)->e_type == ET_DYN) | |
1710 | return &elf32_frv_rel_funcdesc_value_howto; | |
1711 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE]; | |
1712 | ||
1713 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1714 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12]; | |
1715 | ||
1716 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1717 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI]; | |
1718 | ||
1719 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1720 | return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO]; | |
1721 | ||
1722 | case BFD_RELOC_FRV_GOTOFF12: | |
1723 | return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12]; | |
1724 | ||
1725 | case BFD_RELOC_FRV_GOTOFFHI: | |
1726 | return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI]; | |
1727 | ||
1728 | case BFD_RELOC_FRV_GOTOFFLO: | |
1729 | return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO]; | |
1730 | ||
4e5ba5b7 DB |
1731 | case BFD_RELOC_VTABLE_INHERIT: |
1732 | return &elf32_frv_vtinherit_howto; | |
1733 | ||
1734 | case BFD_RELOC_VTABLE_ENTRY: | |
1735 | return &elf32_frv_vtentry_howto; | |
1736 | } | |
1737 | ||
1738 | return NULL; | |
1739 | } | |
1740 | ||
1741 | /* Set the howto pointer for an FRV ELF reloc. */ | |
1742 | ||
1743 | static void | |
1744 | frv_info_to_howto_rela (abfd, cache_ptr, dst) | |
b34976b6 AM |
1745 | bfd *abfd ATTRIBUTE_UNUSED; |
1746 | arelent *cache_ptr; | |
1747 | Elf_Internal_Rela *dst; | |
4e5ba5b7 DB |
1748 | { |
1749 | unsigned int r_type; | |
1750 | ||
1751 | r_type = ELF32_R_TYPE (dst->r_info); | |
1752 | switch (r_type) | |
1753 | { | |
1754 | case R_FRV_GNU_VTINHERIT: | |
1755 | cache_ptr->howto = &elf32_frv_vtinherit_howto; | |
1756 | break; | |
1757 | ||
1758 | case R_FRV_GNU_VTENTRY: | |
1759 | cache_ptr->howto = &elf32_frv_vtentry_howto; | |
1760 | break; | |
1761 | ||
1762 | default: | |
1763 | cache_ptr->howto = & elf32_frv_howto_table [r_type]; | |
1764 | break; | |
1765 | } | |
1766 | } | |
51532845 AO |
1767 | |
1768 | /* Set the howto pointer for an FRV ELF REL reloc. */ | |
1769 | static void | |
1770 | frv_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, | |
1771 | arelent *cache_ptr, Elf_Internal_Rela *dst) | |
1772 | { | |
1773 | unsigned int r_type; | |
1774 | ||
1775 | r_type = ELF32_R_TYPE (dst->r_info); | |
1776 | switch (r_type) | |
1777 | { | |
1778 | case R_FRV_32: | |
1779 | cache_ptr->howto = &elf32_frv_rel_32_howto; | |
1780 | break; | |
1781 | ||
1782 | case R_FRV_FUNCDESC: | |
1783 | cache_ptr->howto = &elf32_frv_rel_funcdesc_howto; | |
1784 | break; | |
1785 | ||
1786 | case R_FRV_FUNCDESC_VALUE: | |
1787 | cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto; | |
1788 | break; | |
1789 | ||
1790 | default: | |
1791 | cache_ptr->howto = NULL; | |
1792 | break; | |
1793 | } | |
1794 | } | |
4e5ba5b7 DB |
1795 | \f |
1796 | /* Perform a single relocation. By default we use the standard BFD | |
1797 | routines, but a few relocs, we have to do them ourselves. */ | |
1798 | ||
1799 | static bfd_reloc_status_type | |
b34976b6 AM |
1800 | frv_final_link_relocate (howto, input_bfd, input_section, contents, rel, |
1801 | relocation) | |
1802 | reloc_howto_type *howto; | |
1803 | bfd *input_bfd; | |
1804 | asection *input_section; | |
1805 | bfd_byte *contents; | |
1806 | Elf_Internal_Rela *rel; | |
1807 | bfd_vma relocation; | |
4e5ba5b7 DB |
1808 | { |
1809 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1810 | contents, rel->r_offset, relocation, | |
1811 | rel->r_addend); | |
1812 | } | |
1813 | ||
1814 | \f | |
1815 | /* Relocate an FRV ELF section. | |
4e5ba5b7 DB |
1816 | |
1817 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
1818 | to handle the relocations for a section. | |
1819 | ||
1820 | The relocs are always passed as Rela structures; if the section | |
1821 | actually uses Rel structures, the r_addend field will always be | |
1822 | zero. | |
1823 | ||
1824 | This function is responsible for adjusting the section contents as | |
1049f94e | 1825 | necessary, and (if using Rela relocs and generating a relocatable |
4e5ba5b7 DB |
1826 | output file) adjusting the reloc addend as necessary. |
1827 | ||
1828 | This function does not have to worry about setting the reloc | |
1829 | address or the reloc symbol index. | |
1830 | ||
1831 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
1832 | ||
1833 | LOCAL_SECTIONS is an array giving the section in the input file | |
1834 | corresponding to the st_shndx field of each local symbol. | |
1835 | ||
1836 | The global hash table entry for the global symbols can be found | |
1837 | via elf_sym_hashes (input_bfd). | |
1838 | ||
1049f94e | 1839 | When generating relocatable output, this function must handle |
4e5ba5b7 DB |
1840 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
1841 | going to be the section symbol corresponding to the output | |
1842 | section, which means that the addend must be adjusted | |
1843 | accordingly. */ | |
1844 | ||
b34976b6 | 1845 | static bfd_boolean |
4e5ba5b7 | 1846 | elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, |
de2d743e | 1847 | contents, relocs, local_syms, local_sections) |
b34976b6 AM |
1848 | bfd *output_bfd ATTRIBUTE_UNUSED; |
1849 | struct bfd_link_info *info; | |
1850 | bfd *input_bfd; | |
1851 | asection *input_section; | |
1852 | bfd_byte *contents; | |
1853 | Elf_Internal_Rela *relocs; | |
1854 | Elf_Internal_Sym *local_syms; | |
1855 | asection **local_sections; | |
4e5ba5b7 | 1856 | { |
b34976b6 AM |
1857 | Elf_Internal_Shdr *symtab_hdr; |
1858 | struct elf_link_hash_entry **sym_hashes; | |
1859 | Elf_Internal_Rela *rel; | |
1860 | Elf_Internal_Rela *relend; | |
51532845 AO |
1861 | unsigned isec_segment, got_segment, plt_segment, gprel_segment, |
1862 | check_segment[2]; | |
1863 | int silence_segment_error = !(info->shared || info->pie); | |
4e5ba5b7 | 1864 | |
1049f94e | 1865 | if (info->relocatable) |
b34976b6 | 1866 | return TRUE; |
de2d743e | 1867 | |
4e5ba5b7 DB |
1868 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
1869 | sym_hashes = elf_sym_hashes (input_bfd); | |
1870 | relend = relocs + input_section->reloc_count; | |
1871 | ||
51532845 AO |
1872 | isec_segment = _frv_osec_to_segment (output_bfd, |
1873 | input_section->output_section); | |
1874 | if (frv_got_section (info)) | |
1875 | got_segment = _frv_osec_to_segment (output_bfd, | |
1876 | frv_got_section (info) | |
1877 | ->output_section); | |
1878 | else | |
1879 | got_segment = -1; | |
1880 | if (frv_gotfixup_section (info)) | |
1881 | gprel_segment = _frv_osec_to_segment (output_bfd, | |
1882 | frv_gotfixup_section (info) | |
1883 | ->output_section); | |
1884 | else | |
1885 | gprel_segment = -1; | |
1886 | if (elf_hash_table (info)->dynamic_sections_created) | |
1887 | plt_segment = _frv_osec_to_segment (output_bfd, | |
1888 | frv_plt_section (info) | |
1889 | ->output_section); | |
1890 | else | |
1891 | plt_segment = -1; | |
1892 | ||
4e5ba5b7 DB |
1893 | for (rel = relocs; rel < relend; rel ++) |
1894 | { | |
b34976b6 AM |
1895 | reloc_howto_type *howto; |
1896 | unsigned long r_symndx; | |
1897 | Elf_Internal_Sym *sym; | |
1898 | asection *sec; | |
1899 | struct elf_link_hash_entry *h; | |
1900 | bfd_vma relocation; | |
1901 | bfd_reloc_status_type r; | |
1902 | const char * name = NULL; | |
1903 | int r_type; | |
51532845 AO |
1904 | asection *osec; |
1905 | struct frv_pic_relocs_info *picrel; | |
1906 | bfd_vma orig_addend = rel->r_addend; | |
1907 | ||
1908 | r_type = ELF32_R_TYPE (rel->r_info); | |
1909 | ||
1910 | if ( r_type == R_FRV_GNU_VTINHERIT | |
1911 | || r_type == R_FRV_GNU_VTENTRY) | |
1912 | continue; | |
1913 | ||
1914 | /* This is a final link. */ | |
1915 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1916 | howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info); | |
1917 | h = NULL; | |
1918 | sym = NULL; | |
1919 | sec = NULL; | |
1920 | ||
1921 | if (r_symndx < symtab_hdr->sh_info) | |
1922 | { | |
1923 | sym = local_syms + r_symndx; | |
1924 | osec = sec = local_sections [r_symndx]; | |
1925 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1926 | ||
1927 | name = bfd_elf_string_from_elf_section | |
1928 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
1929 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
1930 | } | |
1931 | else | |
1932 | { | |
1933 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
1934 | ||
1935 | while (h->root.type == bfd_link_hash_indirect | |
1936 | || h->root.type == bfd_link_hash_warning) | |
1937 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1938 | ||
1939 | name = h->root.root.string; | |
1940 | ||
1941 | if ((h->root.type == bfd_link_hash_defined | |
1942 | || h->root.type == bfd_link_hash_defweak) | |
1943 | && ! FRV_SYM_LOCAL (info, h)) | |
1944 | { | |
1945 | sec = NULL; | |
1946 | relocation = 0; | |
1947 | } | |
1948 | else | |
1949 | if (h->root.type == bfd_link_hash_defined | |
1950 | || h->root.type == bfd_link_hash_defweak) | |
1951 | { | |
1952 | sec = h->root.u.def.section; | |
1953 | relocation = (h->root.u.def.value | |
1954 | + sec->output_section->vma | |
1955 | + sec->output_offset); | |
1956 | } | |
1957 | else if (h->root.type == bfd_link_hash_undefweak) | |
1958 | { | |
1959 | relocation = 0; | |
1960 | } | |
1961 | else if ( ! info->executable | |
1962 | && ! info->symbolic | |
1963 | && info->unresolved_syms_in_objects == RM_IGNORE | |
1964 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
1965 | relocation = 0; | |
1966 | else | |
1967 | { | |
1968 | if (! ((*info->callbacks->undefined_symbol) | |
1969 | (info, h->root.root.string, input_bfd, | |
1970 | input_section, rel->r_offset, TRUE))) | |
1971 | return FALSE; | |
1972 | relocation = 0; | |
1973 | } | |
1974 | osec = sec; | |
1975 | } | |
1976 | ||
1977 | switch (r_type) | |
1978 | { | |
1979 | case R_FRV_LABEL24: | |
1980 | case R_FRV_32: | |
1981 | case R_FRV_GOT12: | |
1982 | case R_FRV_GOTHI: | |
1983 | case R_FRV_GOTLO: | |
1984 | case R_FRV_FUNCDESC_GOT12: | |
1985 | case R_FRV_FUNCDESC_GOTHI: | |
1986 | case R_FRV_FUNCDESC_GOTLO: | |
1987 | case R_FRV_GOTOFF12: | |
1988 | case R_FRV_GOTOFFHI: | |
1989 | case R_FRV_GOTOFFLO: | |
1990 | case R_FRV_FUNCDESC_GOTOFF12: | |
1991 | case R_FRV_FUNCDESC_GOTOFFHI: | |
1992 | case R_FRV_FUNCDESC_GOTOFFLO: | |
1993 | case R_FRV_FUNCDESC: | |
1994 | case R_FRV_FUNCDESC_VALUE: | |
1995 | if (h != NULL) | |
1996 | picrel = frv_pic_relocs_info_for_global (frv_relocs_info (info), | |
1997 | input_bfd, h, | |
3b712a1a | 1998 | orig_addend, INSERT); |
51532845 AO |
1999 | else |
2000 | /* In order to find the entry we created before, we must | |
2001 | use the original addend, not the one that may have been | |
2002 | modified by _bfd_elf_rela_local_sym(). */ | |
2003 | picrel = frv_pic_relocs_info_for_local (frv_relocs_info (info), | |
2004 | input_bfd, r_symndx, | |
3b712a1a | 2005 | orig_addend, INSERT); |
51532845 AO |
2006 | if (! picrel) |
2007 | return FALSE; | |
2008 | ||
2009 | if (!_frv_emit_got_relocs_plt_entries (picrel, output_bfd, info, | |
2010 | osec, sym, rel->r_addend)) | |
2011 | { | |
2012 | info->callbacks->warning | |
2013 | (info, _("Dynamic relocation references symbol with nonzero addend"), | |
2014 | name, input_bfd, input_section, rel->r_offset); | |
2015 | return FALSE; | |
2016 | ||
2017 | } | |
2018 | ||
2019 | break; | |
2020 | ||
2021 | default: | |
2022 | picrel = NULL; | |
2023 | if (h && ! FRV_SYM_LOCAL (info, h)) | |
2024 | { | |
2025 | info->callbacks->warning | |
2026 | (info, _("relocation references symbol not defined in the module"), | |
2027 | name, input_bfd, input_section, rel->r_offset); | |
2028 | return FALSE; | |
2029 | } | |
2030 | break; | |
2031 | } | |
2032 | ||
2033 | switch (r_type) | |
2034 | { | |
2035 | case R_FRV_LABEL24: | |
2036 | check_segment[0] = isec_segment; | |
2037 | if (picrel->plt) | |
2038 | { | |
2039 | relocation = frv_plt_section (info)->output_section->vma | |
2040 | + frv_plt_section (info)->output_offset | |
2041 | + picrel->plt_entry; | |
2042 | check_segment[1] = plt_segment; | |
2043 | } | |
2044 | /* We don't want to warn on calls to undefined weak symbols, | |
2045 | as calls to them must be protected by non-NULL tests | |
2046 | anyway, and unprotected calls would invoke undefined | |
2047 | behavior. */ | |
2048 | else if (picrel->symndx == -1 | |
2049 | && picrel->d.h->root.type == bfd_link_hash_undefweak) | |
2050 | check_segment[1] = check_segment[0]; | |
2051 | else | |
2052 | check_segment[1] = sec | |
2053 | ? _frv_osec_to_segment (output_bfd, sec->output_section) | |
2054 | : (unsigned)-1; | |
2055 | break; | |
2056 | ||
2057 | case R_FRV_GOT12: | |
2058 | case R_FRV_GOTHI: | |
2059 | case R_FRV_GOTLO: | |
2060 | relocation = picrel->got_entry; | |
2061 | check_segment[0] = check_segment[1] = got_segment; | |
2062 | break; | |
2063 | ||
2064 | case R_FRV_FUNCDESC_GOT12: | |
2065 | case R_FRV_FUNCDESC_GOTHI: | |
2066 | case R_FRV_FUNCDESC_GOTLO: | |
2067 | relocation = picrel->fdgot_entry; | |
2068 | check_segment[0] = check_segment[1] = got_segment; | |
2069 | break; | |
2070 | ||
2071 | case R_FRV_GOTOFFHI: | |
2072 | case R_FRV_GOTOFF12: | |
2073 | case R_FRV_GOTOFFLO: | |
2074 | relocation -= frv_got_section (info)->output_section->vma | |
2075 | + frv_got_section (info)->output_offset | |
2076 | + frv_got_initial_offset (info); | |
2077 | check_segment[0] = got_segment; | |
2078 | check_segment[1] = sec | |
2079 | ? _frv_osec_to_segment (output_bfd, sec->output_section) | |
2080 | : (unsigned)-1; | |
2081 | break; | |
2082 | ||
2083 | case R_FRV_FUNCDESC_GOTOFF12: | |
2084 | case R_FRV_FUNCDESC_GOTOFFHI: | |
2085 | case R_FRV_FUNCDESC_GOTOFFLO: | |
2086 | relocation = picrel->fd_entry; | |
2087 | check_segment[0] = check_segment[1] = got_segment; | |
2088 | break; | |
2089 | ||
2090 | case R_FRV_FUNCDESC: | |
2091 | { | |
2092 | int dynindx; | |
2093 | bfd_vma addend = rel->r_addend; | |
2094 | ||
072c8903 AO |
2095 | if (! (h && h->root.type == bfd_link_hash_undefweak |
2096 | && FRV_SYM_LOCAL (info, h))) | |
51532845 | 2097 | { |
072c8903 AO |
2098 | /* If the symbol is dynamic and there may be dynamic |
2099 | symbol resolution because we are or are linked with a | |
2100 | shared library, emit a FUNCDESC relocation such that | |
2101 | the dynamic linker will allocate the function | |
2102 | descriptor. If the symbol needs a non-local function | |
2103 | descriptor but binds locally (e.g., its visibility is | |
2104 | protected, emit a dynamic relocation decayed to | |
2105 | section+offset. */ | |
2106 | if (h && ! FRV_FUNCDESC_LOCAL (info, h) | |
2107 | && FRV_SYM_LOCAL (info, h) | |
2108 | && !(info->executable && !info->pie)) | |
51532845 | 2109 | { |
072c8903 AO |
2110 | dynindx = elf_section_data (h->root.u.def.section |
2111 | ->output_section)->dynindx; | |
2112 | addend += h->root.u.def.section->output_offset | |
2113 | + h->root.u.def.value; | |
2114 | } | |
2115 | else if (h && ! FRV_FUNCDESC_LOCAL (info, h)) | |
2116 | { | |
2117 | if (addend) | |
2118 | { | |
2119 | info->callbacks->warning | |
2120 | (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"), | |
2121 | name, input_bfd, input_section, rel->r_offset); | |
2122 | return FALSE; | |
2123 | } | |
2124 | dynindx = h->dynindx; | |
2125 | } | |
2126 | else | |
2127 | { | |
2128 | /* Otherwise, we know we have a private function | |
2129 | descriptor, so reference it directly. */ | |
2130 | BFD_ASSERT (picrel->privfd); | |
2131 | r_type = R_FRV_32; | |
2132 | dynindx = elf_section_data (frv_got_section (info) | |
2133 | ->output_section)->dynindx; | |
2134 | addend = frv_got_section (info)->output_offset | |
2135 | + frv_got_initial_offset (info) | |
2136 | + picrel->fd_entry; | |
51532845 | 2137 | } |
51532845 | 2138 | |
072c8903 AO |
2139 | /* If there is room for dynamic symbol resolution, emit |
2140 | the dynamic relocation. However, if we're linking an | |
2141 | executable at a fixed location, we won't have emitted a | |
2142 | dynamic symbol entry for the got section, so idx will | |
2143 | be zero, which means we can and should compute the | |
2144 | address of the private descriptor ourselves. */ | |
2145 | if (info->executable && !info->pie | |
2146 | && (!h || FRV_FUNCDESC_LOCAL (info, h))) | |
2147 | { | |
2148 | addend += frv_got_section (info)->output_section->vma; | |
2149 | if ((bfd_get_section_flags (output_bfd, | |
2150 | input_section->output_section) | |
2151 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2152 | { | |
2153 | if (_frv_osec_readonly_p (output_bfd, | |
2154 | input_section->output_section)) | |
2155 | { | |
2156 | info->callbacks->warning | |
2157 | (info, | |
2158 | _("cannot emit fixups in read-only section"), | |
2159 | name, input_bfd, input_section, rel->r_offset); | |
2160 | return FALSE; | |
2161 | } | |
2162 | _frv_add_rofixup (output_bfd, | |
2163 | frv_gotfixup_section (info), | |
2164 | _bfd_elf_section_offset | |
2165 | (output_bfd, info, | |
2166 | input_section, rel->r_offset) | |
2167 | + input_section->output_section->vma | |
3b712a1a AO |
2168 | + input_section->output_offset, |
2169 | picrel); | |
072c8903 AO |
2170 | } |
2171 | } | |
2172 | else if ((bfd_get_section_flags (output_bfd, | |
2173 | input_section->output_section) | |
2174 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
51532845 AO |
2175 | { |
2176 | if (_frv_osec_readonly_p (output_bfd, | |
2177 | input_section->output_section)) | |
2178 | { | |
2179 | info->callbacks->warning | |
2180 | (info, | |
072c8903 | 2181 | _("cannot emit dynamic relocations in read-only section"), |
51532845 AO |
2182 | name, input_bfd, input_section, rel->r_offset); |
2183 | return FALSE; | |
2184 | } | |
072c8903 | 2185 | _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), |
51532845 AO |
2186 | _bfd_elf_section_offset |
2187 | (output_bfd, info, | |
2188 | input_section, rel->r_offset) | |
2189 | + input_section->output_section->vma | |
072c8903 | 2190 | + input_section->output_offset, |
3b712a1a | 2191 | r_type, dynindx, addend, picrel); |
51532845 | 2192 | } |
51532845 AO |
2193 | } |
2194 | ||
2195 | /* We want the addend in-place because dynamic | |
2196 | relocations are REL. Setting relocation to it should | |
2197 | arrange for it to be installed. */ | |
2198 | relocation = addend - rel->r_addend; | |
2199 | } | |
2200 | check_segment[0] = check_segment[1] = got_segment; | |
2201 | break; | |
2202 | ||
2203 | case R_FRV_32: | |
2204 | case R_FRV_FUNCDESC_VALUE: | |
2205 | { | |
2206 | int dynindx; | |
2207 | bfd_vma addend = rel->r_addend; | |
2208 | ||
2209 | /* If the symbol is dynamic but binds locally, use | |
2210 | section+offset. */ | |
2211 | if (h && ! FRV_SYM_LOCAL (info, h)) | |
2212 | { | |
2213 | if (addend && r_type == R_FRV_FUNCDESC_VALUE) | |
2214 | { | |
2215 | info->callbacks->warning | |
2216 | (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"), | |
2217 | name, input_bfd, input_section, rel->r_offset); | |
2218 | return FALSE; | |
2219 | } | |
2220 | dynindx = h->dynindx; | |
2221 | } | |
2222 | else | |
2223 | { | |
2224 | if (h) | |
2225 | addend += h->root.u.def.value; | |
2226 | else | |
2227 | addend += sym->st_value; | |
2228 | if (osec) | |
2229 | addend += osec->output_offset; | |
2230 | if (osec && osec->output_section | |
2231 | && ! bfd_is_abs_section (osec->output_section) | |
2232 | && ! bfd_is_und_section (osec->output_section)) | |
2233 | dynindx = elf_section_data (osec->output_section)->dynindx; | |
2234 | else | |
2235 | dynindx = 0; | |
2236 | } | |
2237 | ||
2238 | /* If we're linking an executable at a fixed address, we | |
2239 | can omit the dynamic relocation as long as the symbol | |
2240 | is defined in the current link unit (which is implied | |
2241 | by its output section not being NULL). */ | |
2242 | if (info->executable && !info->pie | |
2243 | && (!h || FRV_SYM_LOCAL (info, h))) | |
2244 | { | |
2245 | if (osec) | |
2246 | addend += osec->output_section->vma; | |
2247 | if ((elf_elfheader (input_bfd)->e_flags & EF_FRV_FDPIC) | |
2248 | && (bfd_get_section_flags (output_bfd, | |
2249 | input_section->output_section) | |
2250 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2251 | { | |
2252 | if (_frv_osec_readonly_p (output_bfd, | |
2253 | input_section->output_section)) | |
2254 | { | |
2255 | info->callbacks->warning | |
2256 | (info, | |
2257 | _("cannot emit fixups in read-only section"), | |
2258 | name, input_bfd, input_section, rel->r_offset); | |
2259 | return FALSE; | |
2260 | } | |
2261 | if (!h || h->root.type != bfd_link_hash_undefweak) | |
2262 | { | |
2263 | _frv_add_rofixup (output_bfd, | |
2264 | frv_gotfixup_section (info), | |
2265 | _bfd_elf_section_offset | |
2266 | (output_bfd, info, | |
2267 | input_section, rel->r_offset) | |
2268 | + input_section->output_section->vma | |
3b712a1a AO |
2269 | + input_section->output_offset, |
2270 | picrel); | |
51532845 AO |
2271 | if (r_type == R_FRV_FUNCDESC_VALUE) |
2272 | _frv_add_rofixup | |
2273 | (output_bfd, | |
2274 | frv_gotfixup_section (info), | |
2275 | _bfd_elf_section_offset | |
2276 | (output_bfd, info, | |
2277 | input_section, rel->r_offset) | |
2278 | + input_section->output_section->vma | |
3b712a1a | 2279 | + input_section->output_offset + 4, picrel); |
51532845 AO |
2280 | } |
2281 | } | |
2282 | } | |
2283 | else | |
2284 | { | |
2285 | if ((bfd_get_section_flags (output_bfd, | |
2286 | input_section->output_section) | |
2287 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2288 | { | |
2289 | if (_frv_osec_readonly_p (output_bfd, | |
2290 | input_section->output_section)) | |
2291 | { | |
2292 | info->callbacks->warning | |
2293 | (info, | |
2294 | _("cannot emit dynamic relocations in read-only section"), | |
2295 | name, input_bfd, input_section, rel->r_offset); | |
2296 | return FALSE; | |
2297 | } | |
2298 | _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), | |
2299 | _bfd_elf_section_offset | |
2300 | (output_bfd, info, | |
2301 | input_section, rel->r_offset) | |
2302 | + input_section->output_section->vma | |
2303 | + input_section->output_offset, | |
3b712a1a | 2304 | r_type, dynindx, addend, picrel); |
51532845 AO |
2305 | } |
2306 | /* We want the addend in-place because dynamic | |
2307 | relocations are REL. Setting relocation to it | |
2308 | should arrange for it to be installed. */ | |
2309 | relocation = addend - rel->r_addend; | |
2310 | } | |
2311 | ||
2312 | if (r_type == R_FRV_FUNCDESC_VALUE) | |
2313 | { | |
2314 | /* If we've omitted the dynamic relocation, just emit | |
2315 | the fixed addresses of the symbol and of the local | |
2316 | GOT base offset. */ | |
2317 | if (info->executable && !info->pie | |
2318 | && (!h || FRV_SYM_LOCAL (info, h))) | |
2319 | bfd_put_32 (output_bfd, | |
2320 | frv_got_section (info)->output_section->vma | |
2321 | + frv_got_section (info)->output_offset | |
2322 | + frv_got_initial_offset (info), | |
2323 | contents + rel->r_offset + 4); | |
2324 | else | |
2325 | /* A function descriptor used for lazy or local | |
2326 | resolving is initialized such that its high word | |
2327 | contains the output section index in which the | |
2328 | PLT entries are located, and the low word | |
2329 | contains the offset of the lazy PLT entry entry | |
2330 | point into that section. */ | |
2331 | bfd_put_32 (output_bfd, | |
2332 | h && ! FRV_SYM_LOCAL (info, h) | |
2333 | ? 0 | |
2334 | : _frv_osec_to_segment (output_bfd, | |
2335 | sec->output_section), | |
2336 | contents + rel->r_offset + 4); | |
2337 | } | |
2338 | } | |
2339 | check_segment[0] = check_segment[1] = got_segment; | |
2340 | break; | |
2341 | ||
2342 | case R_FRV_GPREL12: | |
2343 | case R_FRV_GPRELU12: | |
2344 | case R_FRV_GPREL32: | |
2345 | case R_FRV_GPRELHI: | |
2346 | case R_FRV_GPRELLO: | |
2347 | check_segment[0] = gprel_segment; | |
2348 | check_segment[1] = sec | |
2349 | ? _frv_osec_to_segment (output_bfd, sec->output_section) | |
2350 | : (unsigned)-1; | |
2351 | break; | |
2352 | ||
2353 | default: | |
2354 | check_segment[0] = isec_segment; | |
2355 | check_segment[1] = sec | |
2356 | ? _frv_osec_to_segment (output_bfd, sec->output_section) | |
2357 | : (unsigned)-1; | |
2358 | break; | |
2359 | } | |
2360 | ||
2361 | if (check_segment[0] != check_segment[1] | |
2362 | && (elf_elfheader (output_bfd)->e_flags & EF_FRV_FDPIC)) | |
2363 | { | |
2364 | #if 1 | |
2365 | /* This helps catch problems in GCC while we can't do more | |
2366 | than static linking. The idea is to test whether the | |
2367 | input file basename is crt0.o only once. */ | |
2368 | if (silence_segment_error == 1) | |
2369 | silence_segment_error = | |
2370 | (strlen (input_bfd->filename) == 6 | |
2371 | && strcmp (input_bfd->filename, "crt0.o") == 0) | |
2372 | || (strlen (input_bfd->filename) > 6 | |
2373 | && strcmp (input_bfd->filename | |
2374 | + strlen (input_bfd->filename) - 7, | |
2375 | "/crt0.o") == 0) | |
2376 | ? -1 : 0; | |
2377 | #endif | |
2378 | if (!silence_segment_error | |
2379 | /* We don't want duplicate errors for undefined | |
2380 | symbols. */ | |
2381 | && !(picrel && picrel->symndx == -1 | |
2382 | && picrel->d.h->root.type == bfd_link_hash_undefined)) | |
2383 | info->callbacks->warning | |
2384 | (info, | |
2385 | (info->shared || info->pie) | |
2386 | ? _("relocations between different segments are not supported") | |
2387 | : _("warning: relocation references a different segment"), | |
2388 | name, input_bfd, input_section, rel->r_offset); | |
2389 | if (!silence_segment_error && (info->shared || info->pie)) | |
2390 | return FALSE; | |
2391 | elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC; | |
2392 | } | |
2393 | ||
2394 | switch (r_type) | |
2395 | { | |
2396 | case R_FRV_GOTOFFHI: | |
2397 | /* We need the addend to be applied before we shift the | |
2398 | value right. */ | |
2399 | relocation += rel->r_addend; | |
2400 | /* Fall through. */ | |
2401 | case R_FRV_GOTHI: | |
2402 | case R_FRV_FUNCDESC_GOTHI: | |
2403 | case R_FRV_FUNCDESC_GOTOFFHI: | |
2404 | relocation >>= 16; | |
2405 | /* Fall through. */ | |
2406 | ||
2407 | case R_FRV_GOTLO: | |
2408 | case R_FRV_FUNCDESC_GOTLO: | |
2409 | case R_FRV_GOTOFFLO: | |
2410 | case R_FRV_FUNCDESC_GOTOFFLO: | |
2411 | relocation &= 0xffff; | |
2412 | break; | |
2413 | ||
2414 | default: | |
2415 | break; | |
2416 | } | |
2417 | ||
2418 | switch (r_type) | |
2419 | { | |
2420 | case R_FRV_LABEL24: | |
2421 | if (! picrel->plt) | |
2422 | break; | |
2423 | /* Fall through. */ | |
2424 | ||
2425 | /* When referencing a GOT entry, a function descriptor or a | |
2426 | PLT, we don't want the addend to apply to the reference, | |
2427 | but rather to the referenced symbol. The actual entry | |
2428 | will have already been created taking the addend into | |
2429 | account, so cancel it out here. */ | |
2430 | case R_FRV_GOT12: | |
2431 | case R_FRV_GOTHI: | |
2432 | case R_FRV_GOTLO: | |
2433 | case R_FRV_FUNCDESC_GOT12: | |
2434 | case R_FRV_FUNCDESC_GOTHI: | |
2435 | case R_FRV_FUNCDESC_GOTLO: | |
2436 | case R_FRV_FUNCDESC_GOTOFF12: | |
2437 | case R_FRV_FUNCDESC_GOTOFFHI: | |
2438 | case R_FRV_FUNCDESC_GOTOFFLO: | |
2439 | /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12 | |
2440 | here, since we do want to apply the addend to the others. | |
2441 | Note that we've applied the addend to GOTOFFHI before we | |
2442 | shifted it right. */ | |
2443 | case R_FRV_GOTOFFHI: | |
2444 | relocation -= rel->r_addend; | |
2445 | break; | |
2446 | ||
2447 | default: | |
2448 | break; | |
2449 | } | |
2450 | ||
2451 | if (r_type == R_FRV_HI16) | |
2452 | r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation); | |
2453 | ||
2454 | else if (r_type == R_FRV_LO16) | |
2455 | r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation); | |
2456 | ||
2457 | else if (r_type == R_FRV_LABEL24) | |
2458 | r = elf32_frv_relocate_label24 (input_bfd, input_section, rel, | |
2459 | contents, relocation); | |
2460 | ||
2461 | else if (r_type == R_FRV_GPREL12) | |
2462 | r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel, | |
2463 | contents, relocation); | |
2464 | ||
2465 | else if (r_type == R_FRV_GPRELU12) | |
2466 | r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel, | |
2467 | contents, relocation); | |
2468 | ||
2469 | else if (r_type == R_FRV_GPRELLO) | |
2470 | r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel, | |
2471 | contents, relocation); | |
2472 | ||
2473 | else if (r_type == R_FRV_GPRELHI) | |
2474 | r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel, | |
2475 | contents, relocation); | |
2476 | ||
2477 | else | |
2478 | r = frv_final_link_relocate (howto, input_bfd, input_section, contents, | |
2479 | rel, relocation); | |
2480 | ||
2481 | if (r != bfd_reloc_ok) | |
2482 | { | |
2483 | const char * msg = (const char *) NULL; | |
2484 | ||
2485 | switch (r) | |
2486 | { | |
2487 | case bfd_reloc_overflow: | |
2488 | r = info->callbacks->reloc_overflow | |
2489 | (info, name, howto->name, (bfd_vma) 0, | |
2490 | input_bfd, input_section, rel->r_offset); | |
2491 | break; | |
2492 | ||
2493 | case bfd_reloc_undefined: | |
2494 | r = info->callbacks->undefined_symbol | |
2495 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
2496 | break; | |
2497 | ||
2498 | case bfd_reloc_outofrange: | |
2499 | msg = _("internal error: out of range error"); | |
2500 | break; | |
2501 | ||
2502 | case bfd_reloc_notsupported: | |
2503 | msg = _("internal error: unsupported relocation error"); | |
2504 | break; | |
2505 | ||
2506 | case bfd_reloc_dangerous: | |
2507 | msg = _("internal error: dangerous relocation"); | |
2508 | break; | |
2509 | ||
2510 | default: | |
2511 | msg = _("internal error: unknown error"); | |
2512 | break; | |
2513 | } | |
2514 | ||
2515 | if (msg) | |
2516 | r = info->callbacks->warning | |
2517 | (info, msg, name, input_bfd, input_section, rel->r_offset); | |
2518 | ||
2519 | if (! r) | |
2520 | return FALSE; | |
2521 | } | |
2522 | } | |
2523 | ||
2524 | return TRUE; | |
2525 | } | |
2526 | \f | |
2527 | /* Return the section that should be marked against GC for a given | |
2528 | relocation. */ | |
2529 | ||
2530 | static asection * | |
2531 | elf32_frv_gc_mark_hook (sec, info, rel, h, sym) | |
2532 | asection *sec; | |
2533 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
2534 | Elf_Internal_Rela *rel; | |
2535 | struct elf_link_hash_entry *h; | |
2536 | Elf_Internal_Sym *sym; | |
2537 | { | |
2538 | if (h != NULL) | |
2539 | { | |
2540 | switch (ELF32_R_TYPE (rel->r_info)) | |
2541 | { | |
2542 | case R_FRV_GNU_VTINHERIT: | |
2543 | case R_FRV_GNU_VTENTRY: | |
2544 | break; | |
2545 | ||
2546 | default: | |
2547 | switch (h->root.type) | |
2548 | { | |
2549 | default: | |
2550 | break; | |
2551 | ||
2552 | case bfd_link_hash_defined: | |
2553 | case bfd_link_hash_defweak: | |
2554 | return h->root.u.def.section; | |
2555 | ||
2556 | case bfd_link_hash_common: | |
2557 | return h->root.u.c.p->section; | |
2558 | } | |
2559 | } | |
2560 | } | |
2561 | else | |
2562 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
2563 | ||
2564 | return NULL; | |
2565 | } | |
2566 | ||
2567 | /* Update the got entry reference counts for the section being removed. */ | |
2568 | ||
2569 | static bfd_boolean | |
2570 | elf32_frv_gc_sweep_hook (abfd, info, sec, relocs) | |
2571 | bfd *abfd ATTRIBUTE_UNUSED; | |
2572 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
2573 | asection *sec ATTRIBUTE_UNUSED; | |
2574 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
2575 | { | |
2576 | return TRUE; | |
2577 | } | |
2578 | ||
2579 | \f | |
2580 | /* Hook called by the linker routine which adds symbols from an object | |
2581 | file. We use it to put .comm items in .scomm, and not .comm. */ | |
2582 | ||
2583 | static bfd_boolean | |
2584 | elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
2585 | bfd *abfd; | |
2586 | struct bfd_link_info *info; | |
2587 | const Elf_Internal_Sym *sym; | |
2588 | const char **namep ATTRIBUTE_UNUSED; | |
2589 | flagword *flagsp ATTRIBUTE_UNUSED; | |
2590 | asection **secp; | |
2591 | bfd_vma *valp; | |
2592 | { | |
2593 | if (sym->st_shndx == SHN_COMMON | |
2594 | && !info->relocatable | |
2595 | && (int)sym->st_size <= (int)bfd_get_gp_size (abfd)) | |
2596 | { | |
2597 | /* Common symbols less than or equal to -G nn bytes are | |
2598 | automatically put into .sbss. */ | |
2599 | ||
2600 | asection *scomm = bfd_get_section_by_name (abfd, ".scommon"); | |
2601 | ||
2602 | if (scomm == NULL) | |
2603 | { | |
2604 | scomm = bfd_make_section (abfd, ".scommon"); | |
2605 | if (scomm == NULL | |
2606 | || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC | |
2607 | | SEC_IS_COMMON | |
2608 | | SEC_LINKER_CREATED))) | |
2609 | return FALSE; | |
2610 | } | |
2611 | ||
2612 | *secp = scomm; | |
2613 | *valp = sym->st_size; | |
2614 | } | |
2615 | ||
2616 | return TRUE; | |
2617 | } | |
2618 | /* Create a .got section, as well as its additional info field. This | |
2619 | is almost entirely copied from | |
2620 | elflink.c:_bfd_elf_create_got_section(). */ | |
2621 | ||
2622 | static bfd_boolean | |
2623 | _frv_create_got_section (bfd *abfd, struct bfd_link_info *info) | |
2624 | { | |
2625 | flagword flags; | |
2626 | asection *s; | |
2627 | struct elf_link_hash_entry *h; | |
2628 | struct bfd_link_hash_entry *bh; | |
2629 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2630 | int ptralign; | |
2631 | ||
2632 | /* This function may be called more than once. */ | |
2633 | s = bfd_get_section_by_name (abfd, ".got"); | |
2634 | if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0) | |
2635 | return TRUE; | |
2636 | ||
2637 | /* Machine specific: although pointers are 32-bits wide, we want the | |
2638 | GOT to be aligned to a 64-bit boundary, such that function | |
2639 | descriptors in it can be accessed with 64-bit loads and | |
2640 | stores. */ | |
2641 | ptralign = 3; | |
2642 | ||
2643 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2644 | | SEC_LINKER_CREATED); | |
2645 | ||
2646 | s = bfd_make_section (abfd, ".got"); | |
2647 | if (s == NULL | |
2648 | || !bfd_set_section_flags (abfd, s, flags) | |
2649 | || !bfd_set_section_alignment (abfd, s, ptralign)) | |
2650 | return FALSE; | |
2651 | ||
2652 | if (bed->want_got_plt) | |
2653 | { | |
2654 | s = bfd_make_section (abfd, ".got.plt"); | |
2655 | if (s == NULL | |
2656 | || !bfd_set_section_flags (abfd, s, flags) | |
2657 | || !bfd_set_section_alignment (abfd, s, ptralign)) | |
2658 | return FALSE; | |
2659 | } | |
2660 | ||
2661 | if (bed->want_got_sym) | |
2662 | { | |
2663 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
2664 | (or .got.plt) section. We don't do this in the linker script | |
2665 | because we don't want to define the symbol if we are not creating | |
2666 | a global offset table. */ | |
2667 | bh = NULL; | |
2668 | if (!(_bfd_generic_link_add_one_symbol | |
2669 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, | |
2670 | bed->got_symbol_offset, (const char *) NULL, FALSE, | |
2671 | bed->collect, &bh))) | |
2672 | return FALSE; | |
2673 | h = (struct elf_link_hash_entry *) bh; | |
2674 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
2675 | h->type = STT_OBJECT; | |
2676 | ||
2677 | /* Machine-specific: we want the symbol for executables as | |
2678 | well. */ | |
2679 | if (! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
2680 | return FALSE; | |
2681 | ||
2682 | elf_hash_table (info)->hgot = h; | |
2683 | } | |
2684 | ||
2685 | /* The first bit of the global offset table is the header. */ | |
2686 | s->_raw_size += bed->got_header_size + bed->got_symbol_offset; | |
2687 | ||
2688 | /* This is the machine-specific part. Create and initialize section | |
2689 | data for the got. */ | |
2690 | frv_got_section (info) = s; | |
2691 | frv_relocs_info (info) = htab_try_create (1, frv_pic_relocs_info_hash, | |
2692 | frv_pic_relocs_info_eq, | |
2693 | (htab_del) NULL); | |
2694 | if (! frv_relocs_info (info)) | |
2695 | return FALSE; | |
2696 | ||
2697 | s = bfd_make_section (abfd, ".rel.got"); | |
2698 | if (s == NULL | |
2699 | || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY)) | |
2700 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
2701 | return FALSE; | |
2702 | ||
2703 | frv_gotrel_section (info) = s; | |
2704 | ||
2705 | /* Machine-specific. */ | |
2706 | s = bfd_make_section (abfd, ".rofixup"); | |
2707 | if (s == NULL | |
2708 | || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY)) | |
2709 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
2710 | return FALSE; | |
2711 | ||
2712 | frv_gotfixup_section (info) = s; | |
2713 | ||
2714 | /* Define _gp in .rofixup, for FDPIC. If it turns out that | |
2715 | we're linking with a different linker script, the linker script | |
2716 | will override it. */ | |
2717 | bh = NULL; | |
2718 | if (!(_bfd_generic_link_add_one_symbol | |
2719 | (info, abfd, "_gp", BSF_GLOBAL, s, -2048, (const char *) NULL, FALSE, | |
2720 | bed->collect, &bh))) | |
2721 | return FALSE; | |
2722 | h = (struct elf_link_hash_entry *) bh; | |
2723 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
2724 | h->type = STT_OBJECT; | |
2725 | ||
2726 | /* Machine-specific: we want the symbol for executables as well. */ | |
2727 | if (! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
2728 | return FALSE; | |
2729 | ||
2730 | return TRUE; | |
2731 | } | |
2732 | ||
2733 | /* Make sure the got and plt sections exist, and that our pointers in | |
2734 | the link hash table point to them. */ | |
2735 | ||
2736 | static bfd_boolean | |
2737 | elf32_frv_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
2738 | { | |
2739 | /* This is mostly copied from | |
2740 | elflink.c:_bfd_elf_create_dynamic_sections(). */ | |
2741 | flagword flags, pltflags; | |
2742 | asection *s; | |
2743 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2744 | ||
2745 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
2746 | .rel[a].bss sections. */ | |
2747 | ||
2748 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2749 | | SEC_LINKER_CREATED); | |
2750 | ||
2751 | pltflags = flags; | |
2752 | pltflags |= SEC_CODE; | |
2753 | if (bed->plt_not_loaded) | |
2754 | pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS); | |
2755 | if (bed->plt_readonly) | |
2756 | pltflags |= SEC_READONLY; | |
2757 | ||
2758 | s = bfd_make_section (abfd, ".plt"); | |
2759 | if (s == NULL | |
2760 | || ! bfd_set_section_flags (abfd, s, pltflags) | |
2761 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
2762 | return FALSE; | |
2763 | /* FRV-specific: remember it. */ | |
2764 | frv_plt_section (info) = s; | |
2765 | ||
2766 | if (bed->want_plt_sym) | |
2767 | { | |
2768 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
2769 | .plt section. */ | |
2770 | struct elf_link_hash_entry *h; | |
2771 | struct bfd_link_hash_entry *bh = NULL; | |
2772 | ||
2773 | if (! (_bfd_generic_link_add_one_symbol | |
2774 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL, | |
2775 | FALSE, get_elf_backend_data (abfd)->collect, &bh))) | |
2776 | return FALSE; | |
2777 | h = (struct elf_link_hash_entry *) bh; | |
2778 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
2779 | h->type = STT_OBJECT; | |
2780 | ||
2781 | if (! info->executable | |
2782 | && ! _bfd_elf_link_record_dynamic_symbol (info, h)) | |
2783 | return FALSE; | |
2784 | } | |
2785 | ||
2786 | /* FRV-specific: we want rel relocations for the plt. */ | |
2787 | s = bfd_make_section (abfd, ".rel.plt"); | |
2788 | if (s == NULL | |
2789 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
2790 | || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
2791 | return FALSE; | |
2792 | /* FRV-specific: remember it. */ | |
2793 | frv_pltrel_section (info) = s; | |
2794 | ||
2795 | /* FRV-specific: we want to create the GOT in the FRV way. */ | |
2796 | if (! _frv_create_got_section (abfd, info)) | |
2797 | return FALSE; | |
2798 | ||
2799 | /* FRV-specific: make sure we created everything we wanted. */ | |
2800 | BFD_ASSERT (frv_got_section (info) && frv_gotrel_section (info) | |
2801 | && frv_gotfixup_section (info) | |
2802 | && frv_plt_section (info) && frv_pltrel_section (info)); | |
2803 | ||
2804 | if (bed->want_dynbss) | |
2805 | { | |
2806 | /* The .dynbss section is a place to put symbols which are defined | |
2807 | by dynamic objects, are referenced by regular objects, and are | |
2808 | not functions. We must allocate space for them in the process | |
2809 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2810 | initialize them at run time. The linker script puts the .dynbss | |
2811 | section into the .bss section of the final image. */ | |
2812 | s = bfd_make_section (abfd, ".dynbss"); | |
2813 | if (s == NULL | |
2814 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED)) | |
2815 | return FALSE; | |
2816 | ||
2817 | /* The .rel[a].bss section holds copy relocs. This section is not | |
2818 | normally needed. We need to create it here, though, so that the | |
2819 | linker will map it to an output section. We can't just create it | |
2820 | only if we need it, because we will not know whether we need it | |
2821 | until we have seen all the input files, and the first time the | |
2822 | main linker code calls BFD after examining all the input files | |
2823 | (size_dynamic_sections) the input sections have already been | |
2824 | mapped to the output sections. If the section turns out not to | |
2825 | be needed, we can discard it later. We will never need this | |
2826 | section when generating a shared object, since they do not use | |
2827 | copy relocs. */ | |
2828 | if (! info->shared) | |
2829 | { | |
2830 | s = bfd_make_section (abfd, | |
2831 | (bed->default_use_rela_p | |
2832 | ? ".rela.bss" : ".rel.bss")); | |
2833 | if (s == NULL | |
2834 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
2835 | || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
2836 | return FALSE; | |
2837 | } | |
2838 | } | |
2839 | ||
2840 | return TRUE; | |
2841 | } | |
2842 | ||
2843 | /* The name of the dynamic interpreter. This is put in the .interp | |
2844 | section. */ | |
2845 | ||
2846 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
2847 | ||
2848 | #define DEFAULT_STACK_SIZE 0x20000 | |
2849 | ||
2850 | /* This structure is used to collect the number of entries present in | |
2851 | each addressable range of the got. */ | |
2852 | struct _frv_dynamic_got_info | |
2853 | { | |
2854 | /* Several bits of information about the current link. */ | |
2855 | struct bfd_link_info *info; | |
2856 | /* Total size needed for GOT entries within the 12-, 16- or 32-bit | |
2857 | ranges. */ | |
2858 | bfd_vma got12, gotlos, gothilo; | |
2859 | /* Total size needed for function descriptor entries within the 12-, | |
2860 | 16- or 32-bit ranges. */ | |
2861 | bfd_vma fd12, fdlos, fdhilo; | |
2862 | /* Total size needed function descriptor entries referenced in PLT | |
2863 | entries, that would be profitable to place in offsets close to | |
2864 | the PIC register. */ | |
2865 | bfd_vma fdplt; | |
2866 | /* Total size needed by lazy PLT entries. */ | |
2867 | bfd_vma lzplt; | |
2868 | /* Number of relocations carried over from input object files. */ | |
2869 | unsigned long relocs; | |
2870 | /* Number of fixups introduced by relocations in input object files. */ | |
2871 | unsigned long fixups; | |
2872 | }; | |
2873 | ||
2874 | /* Compute the total GOT size required by each symbol in each range. | |
2875 | Symbols may require up to 4 words in the GOT: an entry pointing to | |
2876 | the symbol, an entry pointing to its function descriptor, and a | |
2877 | private function descriptors taking two words. */ | |
2878 | ||
2879 | static int | |
2880 | _frv_count_got_plt_entries (void **entryp, void *dinfo_) | |
2881 | { | |
2882 | struct frv_pic_relocs_info *entry = *entryp; | |
2883 | struct _frv_dynamic_got_info *dinfo = dinfo_; | |
3b712a1a | 2884 | unsigned relocs = 0, fixups = 0; |
51532845 AO |
2885 | |
2886 | /* Allocate space for a GOT entry pointing to the symbol. */ | |
2887 | if (entry->got12) | |
2888 | dinfo->got12 += 4; | |
2889 | else if (entry->gotlos) | |
2890 | dinfo->gotlos += 4; | |
2891 | else if (entry->gothilo) | |
2892 | dinfo->gothilo += 4; | |
2893 | else | |
2894 | entry->relocs32--; | |
2895 | entry->relocs32++; | |
2896 | ||
2897 | /* Allocate space for a GOT entry pointing to the function | |
2898 | descriptor. */ | |
2899 | if (entry->fdgot12) | |
2900 | dinfo->got12 += 4; | |
2901 | else if (entry->fdgotlos) | |
2902 | dinfo->gotlos += 4; | |
2903 | else if (entry->fdgothilo) | |
2904 | dinfo->gothilo += 4; | |
2905 | else | |
2906 | entry->relocsfd--; | |
2907 | entry->relocsfd++; | |
2908 | ||
2909 | /* Decide whether we need a PLT entry, a function descriptor in the | |
2910 | GOT, and a lazy PLT entry for this symbol. */ | |
2911 | entry->plt = entry->call | |
2912 | && entry->symndx == -1 && ! FRV_SYM_LOCAL (dinfo->info, entry->d.h) | |
2913 | && elf_hash_table (dinfo->info)->dynamic_sections_created; | |
2914 | entry->privfd = entry->plt | |
2915 | || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo | |
2916 | || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo) | |
2917 | && (entry->symndx != -1 | |
2918 | || FRV_FUNCDESC_LOCAL (dinfo->info, entry->d.h))); | |
2919 | entry->lazyplt = entry->privfd | |
2920 | && entry->symndx == -1 && ! FRV_SYM_LOCAL (dinfo->info, entry->d.h) | |
2921 | && ! (dinfo->info->flags & DF_BIND_NOW) | |
2922 | && elf_hash_table (dinfo->info)->dynamic_sections_created; | |
2923 | ||
2924 | /* Allocate space for a function descriptor. */ | |
2925 | if (entry->fdgoff12) | |
2926 | dinfo->fd12 += 8; | |
2927 | else if (entry->fdgofflos) | |
2928 | dinfo->fdlos += 8; | |
2929 | else if (entry->privfd && entry->plt) | |
2930 | dinfo->fdplt += 8; | |
2931 | else if (entry->privfd) | |
2932 | dinfo->fdhilo += 8; | |
2933 | else | |
2934 | entry->relocsfdv--; | |
2935 | entry->relocsfdv++; | |
2936 | ||
2937 | if (entry->lazyplt) | |
2938 | dinfo->lzplt += 8; | |
2939 | ||
2940 | if (!dinfo->info->executable || dinfo->info->pie) | |
3b712a1a | 2941 | relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv; |
51532845 AO |
2942 | else |
2943 | { | |
2944 | if (entry->symndx != -1 || FRV_SYM_LOCAL (dinfo->info, entry->d.h)) | |
2945 | { | |
2946 | if (entry->symndx != -1 | |
3b712a1a AO |
2947 | || entry->d.h->root.type != bfd_link_hash_undefweak) |
2948 | fixups += entry->relocs32 + 2 * entry->relocsfdv; | |
51532845 AO |
2949 | } |
2950 | else | |
3b712a1a AO |
2951 | relocs += entry->relocs32 + entry->relocsfdv; |
2952 | ||
51532845 AO |
2953 | if (entry->symndx != -1 || FRV_FUNCDESC_LOCAL (dinfo->info, entry->d.h)) |
2954 | { | |
2955 | if (entry->symndx != -1 | |
2956 | || entry->d.h->root.type != bfd_link_hash_undefweak) | |
3b712a1a | 2957 | fixups += entry->relocsfd; |
51532845 AO |
2958 | } |
2959 | else | |
3b712a1a | 2960 | relocs += entry->relocsfd; |
51532845 AO |
2961 | } |
2962 | ||
3b712a1a AO |
2963 | entry->dynrelocs += relocs; |
2964 | entry->fixups += fixups; | |
2965 | dinfo->relocs += relocs; | |
2966 | dinfo->fixups += fixups; | |
2967 | ||
51532845 AO |
2968 | return 1; |
2969 | } | |
2970 | ||
2971 | /* This structure is used to assign offsets to got entries, function | |
2972 | descriptors, plt entries and lazy plt entries. */ | |
2973 | ||
2974 | struct _frv_dynamic_got_plt_info | |
2975 | { | |
2976 | /* Summary information collected with _frv_count_got_plt_entries. */ | |
2977 | struct _frv_dynamic_got_info g; | |
2978 | ||
2979 | /* For each addressable range, we record a MAX (positive) and MIN | |
2980 | (negative) value. CUR is used to assign got entries, and it's | |
2981 | incremented from an initial positive value to MAX, then from MIN | |
2982 | to FDCUR (unless FDCUR wraps around first). FDCUR is used to | |
2983 | assign function descriptors, and it's decreased from an initial | |
2984 | non-positive value to MIN, then from MAX down to CUR (unless CUR | |
2985 | wraps around first). All of MIN, MAX, CUR and FDCUR always point | |
2986 | to even words. ODD, if non-zero, indicates an odd word to be | |
2987 | used for the next got entry, otherwise CUR is used and | |
2988 | incremented by a pair of words, wrapping around when it reaches | |
2989 | MAX. FDCUR is decremented (and wrapped) before the next function | |
2990 | descriptor is chosen. FDPLT indicates the number of remaining | |
2991 | slots that can be used for function descriptors used only by PLT | |
2992 | entries. */ | |
2993 | struct _frv_dynamic_got_alloc_data | |
2994 | { | |
2995 | bfd_signed_vma max, cur, odd, fdcur, min; | |
2996 | bfd_vma fdplt; | |
2997 | } got12, gotlos, gothilo; | |
2998 | }; | |
2999 | ||
3000 | /* Determine the positive and negative ranges to be used by each | |
3001 | offset range in the GOT. FDCUR and CUR, that must be aligned to a | |
3002 | double-word boundary, are the minimum (negative) and maximum | |
3003 | (positive) GOT offsets already used by previous ranges, except for | |
3004 | an ODD entry that may have been left behind. GOT and FD indicate | |
3005 | the size of GOT entries and function descriptors that must be | |
3006 | placed within the range from -WRAP to WRAP. If there's room left, | |
3007 | up to FDPLT bytes should be reserved for additional function | |
3008 | descriptors. */ | |
3009 | ||
3010 | inline static bfd_signed_vma | |
3011 | _frv_compute_got_alloc_data (struct _frv_dynamic_got_alloc_data *gad, | |
3012 | bfd_signed_vma fdcur, | |
3013 | bfd_signed_vma odd, | |
3014 | bfd_signed_vma cur, | |
3015 | bfd_vma got, | |
3016 | bfd_vma fd, | |
3017 | bfd_vma fdplt, | |
3018 | bfd_vma wrap) | |
3019 | { | |
3020 | bfd_signed_vma wrapmin = -wrap; | |
3021 | ||
3022 | /* Start at the given initial points. */ | |
3023 | gad->fdcur = fdcur; | |
3024 | gad->cur = cur; | |
3025 | ||
3026 | /* If we had an incoming odd word and we have any got entries that | |
3027 | are going to use it, consume it, otherwise leave gad->odd at | |
3028 | zero. We might force gad->odd to zero and return the incoming | |
3029 | odd such that it is used by the next range, but then GOT entries | |
3030 | might appear to be out of order and we wouldn't be able to | |
3031 | shorten the GOT by one word if it turns out to end with an | |
3032 | unpaired GOT entry. */ | |
3033 | if (odd && got) | |
3034 | { | |
3035 | gad->odd = odd; | |
3036 | got -= 4; | |
3037 | odd = 0; | |
3038 | } | |
3039 | else | |
3040 | gad->odd = 0; | |
3041 | ||
3042 | /* If we're left with an unpaired GOT entry, compute its location | |
3043 | such that we can return it. Otherwise, if got doesn't require an | |
3044 | odd number of words here, either odd was already zero in the | |
3045 | block above, or it was set to zero because got was non-zero, or | |
3046 | got was already zero. In the latter case, we want the value of | |
3047 | odd to carry over to the return statement, so we don't want to | |
3048 | reset odd unless the condition below is true. */ | |
3049 | if (got & 4) | |
3050 | { | |
3051 | odd = cur + got; | |
3052 | got += 4; | |
3053 | } | |
3054 | ||
3055 | /* Compute the tentative boundaries of this range. */ | |
3056 | gad->max = cur + got; | |
3057 | gad->min = fdcur - fd; | |
3058 | gad->fdplt = 0; | |
3059 | ||
3060 | /* If function descriptors took too much space, wrap some of them | |
3061 | around. */ | |
3062 | if (gad->min < wrapmin) | |
3063 | { | |
3064 | gad->max += wrapmin - gad->min; | |
3065 | gad->min = wrapmin; | |
3066 | } | |
3067 | /* If there is space left and we have function descriptors | |
3068 | referenced in PLT entries that could take advantage of shorter | |
3069 | offsets, place them here. */ | |
3070 | else if (fdplt && gad->min > wrapmin) | |
3071 | { | |
3072 | bfd_vma fds; | |
3073 | if ((bfd_vma) (gad->min - wrapmin) < fdplt) | |
3074 | fds = gad->min - wrapmin; | |
3075 | else | |
3076 | fds = fdplt; | |
3077 | ||
3078 | fdplt -= fds; | |
3079 | gad->min -= fds; | |
3080 | gad->fdplt += fds; | |
3081 | } | |
3082 | ||
3083 | /* If GOT entries took too much space, wrap some of them around. | |
3084 | This may well cause gad->min to become lower than wrapmin. This | |
3085 | will cause a relocation overflow later on, so we don't have to | |
3086 | report it here . */ | |
3087 | if ((bfd_vma) gad->max > wrap) | |
3088 | { | |
3089 | gad->min -= gad->max - wrap; | |
3090 | gad->max = wrap; | |
3091 | } | |
3092 | /* If there is more space left, try to place some more function | |
3093 | descriptors for PLT entries. */ | |
3094 | else if (fdplt && (bfd_vma) gad->max < wrap) | |
3095 | { | |
3096 | bfd_vma fds; | |
3097 | if ((bfd_vma) (wrap - gad->max) < fdplt) | |
3098 | fds = wrap - gad->max; | |
3099 | else | |
3100 | fds = fdplt; | |
3101 | ||
3102 | fdplt -= fds; | |
3103 | gad->max += fds; | |
3104 | gad->fdplt += fds; | |
3105 | } | |
3106 | ||
3107 | /* If odd was initially computed as an offset past the wrap point, | |
3108 | wrap it around. */ | |
3109 | if (odd > gad->max) | |
3110 | odd = gad->min + odd - gad->max; | |
3111 | ||
3112 | /* _frv_get_got_entry() below will always wrap gad->cur if needed | |
3113 | before returning, so do it here too. This guarantees that, | |
3114 | should cur and fdcur meet at the wrap point, they'll both be | |
3115 | equal to min. */ | |
3116 | if (gad->cur == gad->max) | |
3117 | gad->cur = gad->min; | |
3118 | ||
3119 | return odd; | |
3120 | } | |
3121 | ||
3122 | /* Compute the location of the next GOT entry, given the allocation | |
3123 | data for a range. */ | |
3124 | ||
3125 | inline static bfd_signed_vma | |
3126 | _frv_get_got_entry (struct _frv_dynamic_got_alloc_data *gad) | |
3127 | { | |
3128 | bfd_signed_vma ret; | |
3129 | ||
3130 | if (gad->odd) | |
3131 | { | |
3132 | /* If there was an odd word left behind, use it. */ | |
3133 | ret = gad->odd; | |
3134 | gad->odd = 0; | |
3135 | } | |
3136 | else | |
3137 | { | |
3138 | /* Otherwise, use the word pointed to by cur, reserve the next | |
3139 | as an odd word, and skip to the next pair of words, possibly | |
3140 | wrapping around. */ | |
3141 | ret = gad->cur; | |
3142 | gad->odd = gad->cur + 4; | |
3143 | gad->cur += 8; | |
3144 | if (gad->cur == gad->max) | |
3145 | gad->cur = gad->min; | |
3146 | } | |
3147 | ||
3148 | return ret; | |
3149 | } | |
3150 | ||
3151 | /* Compute the location of the next function descriptor entry in the | |
3152 | GOT, given the allocation data for a range. */ | |
3153 | ||
3154 | inline static bfd_signed_vma | |
3155 | _frv_get_fd_entry (struct _frv_dynamic_got_alloc_data *gad) | |
3156 | { | |
3157 | /* If we're at the bottom, wrap around, and only then allocate the | |
3158 | next pair of words. */ | |
3159 | if (gad->fdcur == gad->min) | |
3160 | gad->fdcur = gad->max; | |
3161 | return gad->fdcur -= 8; | |
3162 | } | |
3163 | ||
3164 | /* Assign GOT offsets for every GOT entry and function descriptor. | |
3165 | Doing everything in a single pass is tricky. */ | |
3166 | ||
3167 | static int | |
3168 | _frv_assign_got_entries (void **entryp, void *info_) | |
3169 | { | |
3170 | struct frv_pic_relocs_info *entry = *entryp; | |
3171 | struct _frv_dynamic_got_plt_info *dinfo = info_; | |
3172 | ||
3173 | if (entry->got12) | |
3174 | entry->got_entry = _frv_get_got_entry (&dinfo->got12); | |
3175 | else if (entry->gotlos) | |
3176 | entry->got_entry = _frv_get_got_entry (&dinfo->gotlos); | |
3177 | else if (entry->gothilo) | |
3178 | entry->got_entry = _frv_get_got_entry (&dinfo->gothilo); | |
3179 | ||
3180 | if (entry->fdgot12) | |
3181 | entry->fdgot_entry = _frv_get_got_entry (&dinfo->got12); | |
3182 | else if (entry->fdgotlos) | |
3183 | entry->fdgot_entry = _frv_get_got_entry (&dinfo->gotlos); | |
3184 | else if (entry->fdgothilo) | |
3185 | entry->fdgot_entry = _frv_get_got_entry (&dinfo->gothilo); | |
3186 | ||
3187 | if (entry->fdgoff12) | |
3188 | entry->fd_entry = _frv_get_fd_entry (&dinfo->got12); | |
3189 | else if (entry->plt && dinfo->got12.fdplt) | |
3190 | { | |
3191 | dinfo->got12.fdplt -= 8; | |
3192 | entry->fd_entry = _frv_get_fd_entry (&dinfo->got12); | |
3193 | } | |
3194 | else if (entry->fdgofflos) | |
3195 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gotlos); | |
3196 | else if (entry->plt && dinfo->gotlos.fdplt) | |
3197 | { | |
3198 | dinfo->gotlos.fdplt -= 8; | |
3199 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gotlos); | |
3200 | } | |
3201 | else if (entry->plt) | |
3202 | { | |
3203 | dinfo->gothilo.fdplt -= 8; | |
3204 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gothilo); | |
3205 | } | |
3206 | else if (entry->privfd) | |
3207 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gothilo); | |
3208 | ||
3209 | return 1; | |
3210 | } | |
3211 | ||
3212 | /* Assign GOT offsets to private function descriptors used by PLT | |
3213 | entries (or referenced by 32-bit offsets), as well as PLT entries | |
3214 | and lazy PLT entries. */ | |
3215 | ||
3216 | static int | |
3217 | _frv_assign_plt_entries (void **entryp, void *info_) | |
3218 | { | |
3219 | struct frv_pic_relocs_info *entry = *entryp; | |
3220 | struct _frv_dynamic_got_plt_info *dinfo = info_; | |
3221 | ||
3222 | /* If this symbol requires a local function descriptor, allocate | |
3223 | one. */ | |
3224 | if (entry->privfd && entry->fd_entry == 0) | |
3225 | { | |
3226 | if (dinfo->got12.fdplt) | |
3227 | { | |
3228 | entry->fd_entry = _frv_get_fd_entry (&dinfo->got12); | |
3229 | dinfo->got12.fdplt -= 8; | |
3230 | } | |
3231 | else if (dinfo->gotlos.fdplt) | |
3232 | { | |
3233 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gotlos); | |
3234 | dinfo->gotlos.fdplt -= 8; | |
3235 | } | |
3236 | else | |
3237 | { | |
3238 | BFD_ASSERT (dinfo->gothilo.fdplt) | |
3239 | entry->fd_entry = _frv_get_fd_entry (&dinfo->gothilo); | |
3240 | dinfo->gothilo.fdplt -= 8; | |
3241 | } | |
3242 | } | |
3243 | ||
3244 | if (entry->plt) | |
3245 | { | |
3246 | int size; | |
3247 | ||
3248 | /* We use the section's raw size to mark the location of the | |
3249 | next PLT entry. */ | |
3250 | entry->plt_entry = frv_plt_section (dinfo->g.info)->_raw_size; | |
3251 | ||
3252 | /* Figure out the length of this PLT entry based on the | |
3253 | addressing mode we need to reach the function descriptor. */ | |
3254 | BFD_ASSERT (entry->fd_entry); | |
3255 | if (entry->fd_entry >= -(1 << (12 - 1)) | |
3256 | && entry->fd_entry < (1 << (12 - 1))) | |
3257 | size = 8; | |
3258 | else if (entry->fd_entry >= -(1 << (16 - 1)) | |
3259 | && entry->fd_entry < (1 << (16 - 1))) | |
3260 | size = 12; | |
3261 | else | |
3262 | size = 16; | |
3263 | ||
3264 | frv_plt_section (dinfo->g.info)->_raw_size += size; | |
3265 | } | |
3266 | ||
3267 | if (entry->lazyplt) | |
3268 | { | |
3269 | entry->lzplt_entry = dinfo->g.lzplt; | |
3270 | dinfo->g.lzplt += 8; | |
3271 | /* If this entry is the one that gets the resolver stub, account | |
3272 | for the additional instruction. */ | |
3273 | if (entry->lzplt_entry % FRV_LZPLT_BLOCK_SIZE == FRV_LZPLT_RESOLV_LOC) | |
3274 | dinfo->g.lzplt += 4; | |
3275 | } | |
3276 | ||
3277 | return 1; | |
3278 | } | |
3279 | ||
3280 | /* Follow indirect and warning hash entries so that each got entry | |
3281 | points to the final symbol definition. P must point to a pointer | |
3282 | to the hash table we're traversing. Since this traversal may | |
3283 | modify the hash table, we set this pointer to NULL to indicate | |
3284 | we've made a potentially-destructive change to the hash table, so | |
3285 | the traversal must be restarted. */ | |
3286 | static int | |
3287 | _frv_resolve_final_relocs_info (void **entryp, void *p) | |
3288 | { | |
3289 | struct frv_pic_relocs_info *entry = *entryp; | |
3290 | htab_t *htab = p; | |
3291 | ||
3292 | if (entry->symndx == -1) | |
3293 | { | |
3294 | struct elf_link_hash_entry *h = entry->d.h; | |
3b712a1a | 3295 | struct frv_pic_relocs_info *oentry; |
51532845 AO |
3296 | |
3297 | while (h->root.type == bfd_link_hash_indirect | |
3298 | || h->root.type == bfd_link_hash_warning) | |
3299 | h = (struct elf_link_hash_entry *)h->root.u.i.link; | |
3300 | ||
3301 | if (entry->d.h == h) | |
3302 | return 1; | |
3303 | ||
3b712a1a AO |
3304 | oentry = frv_pic_relocs_info_for_global (*htab, 0, h, entry->addend, |
3305 | NO_INSERT); | |
3306 | ||
3307 | if (oentry) | |
3308 | { | |
3309 | /* Merge the two entries. */ | |
3310 | frv_pic_merge_early_relocs_info (oentry, entry); | |
3311 | htab_clear_slot (*htab, entryp); | |
3312 | return 1; | |
3313 | } | |
3314 | ||
51532845 AO |
3315 | entry->d.h = h; |
3316 | ||
3317 | /* If we can't find this entry with the new bfd hash, re-insert | |
3318 | it, and get the traversal restarted. */ | |
3319 | if (! htab_find (*htab, entry)) | |
3320 | { | |
3321 | htab_clear_slot (*htab, entryp); | |
3322 | entryp = htab_find_slot (*htab, entry, INSERT); | |
3323 | if (! *entryp) | |
3324 | *entryp = entry; | |
3325 | /* Abort the traversal, since the whole table may have | |
3326 | moved, and leave it up to the parent to restart the | |
3327 | process. */ | |
3328 | *(htab_t *)p = NULL; | |
3329 | return 0; | |
3330 | } | |
3331 | } | |
3332 | ||
3333 | return 1; | |
3334 | } | |
3335 | ||
3336 | /* Set the sizes of the dynamic sections. */ | |
3337 | ||
3338 | static bfd_boolean | |
3339 | elf32_frv_size_dynamic_sections (bfd *output_bfd, | |
3340 | struct bfd_link_info *info) | |
3341 | { | |
3342 | bfd *dynobj; | |
3343 | asection *s; | |
3344 | struct _frv_dynamic_got_plt_info gpinfo; | |
3345 | bfd_signed_vma odd; | |
3346 | bfd_vma limit; | |
3347 | ||
3348 | dynobj = elf_hash_table (info)->dynobj; | |
3349 | BFD_ASSERT (dynobj != NULL); | |
3350 | ||
3351 | if (elf_hash_table (info)->dynamic_sections_created) | |
3352 | { | |
3353 | /* Set the contents of the .interp section to the interpreter. */ | |
3354 | if (info->executable) | |
3355 | { | |
3356 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
3357 | BFD_ASSERT (s != NULL); | |
3358 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
3359 | s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER; | |
3360 | } | |
3361 | } | |
3362 | ||
3363 | memset (&gpinfo, 0, sizeof (gpinfo)); | |
3364 | gpinfo.g.info = info; | |
3365 | ||
3366 | for (;;) | |
3367 | { | |
3368 | htab_t relocs = frv_relocs_info (info); | |
3369 | ||
3370 | htab_traverse (relocs, _frv_resolve_final_relocs_info, &relocs); | |
3371 | ||
3372 | if (relocs == frv_relocs_info (info)) | |
3373 | break; | |
3374 | } | |
3375 | ||
3376 | htab_traverse (frv_relocs_info (info), _frv_count_got_plt_entries, | |
3377 | &gpinfo.g); | |
3378 | ||
3379 | odd = 12; | |
3380 | /* Compute the total size taken by entries in the 12-bit and 16-bit | |
3381 | ranges, to tell how many PLT function descriptors we can bring | |
3382 | into the 12-bit range without causing the 16-bit range to | |
3383 | overflow. */ | |
3384 | limit = odd + gpinfo.g.got12 + gpinfo.g.gotlos | |
3385 | + gpinfo.g.fd12 + gpinfo.g.fdlos; | |
3386 | if (limit < (bfd_vma)1 << 16) | |
3387 | limit = ((bfd_vma)1 << 16) - limit; | |
3388 | else | |
3389 | limit = 0; | |
3390 | if (gpinfo.g.fdplt < limit) | |
3391 | limit = gpinfo.g.fdplt; | |
3392 | ||
3393 | /* Determine the ranges of GOT offsets that we can use for each | |
3394 | range of addressing modes. */ | |
3395 | odd = _frv_compute_got_alloc_data (&gpinfo.got12, | |
3396 | 0, | |
3397 | odd, | |
3398 | 16, | |
3399 | gpinfo.g.got12, | |
3400 | gpinfo.g.fd12, | |
3401 | limit, | |
3402 | (bfd_vma)1 << (12-1)); | |
3403 | odd = _frv_compute_got_alloc_data (&gpinfo.gotlos, | |
3404 | gpinfo.got12.min, | |
3405 | odd, | |
3406 | gpinfo.got12.max, | |
3407 | gpinfo.g.gotlos, | |
3408 | gpinfo.g.fdlos, | |
3409 | gpinfo.g.fdplt - gpinfo.got12.fdplt, | |
3410 | (bfd_vma)1 << (16-1)); | |
3411 | odd = _frv_compute_got_alloc_data (&gpinfo.gothilo, | |
3412 | gpinfo.gotlos.min, | |
3413 | odd, | |
3414 | gpinfo.gotlos.max, | |
3415 | gpinfo.g.gothilo, | |
3416 | gpinfo.g.fdhilo, | |
3417 | gpinfo.g.fdplt - gpinfo.got12.fdplt | |
3418 | - gpinfo.gotlos.fdplt, | |
3419 | (bfd_vma)1 << (32-1)); | |
3420 | ||
3421 | /* Now assign (most) GOT offsets. */ | |
3422 | htab_traverse (frv_relocs_info (info), _frv_assign_got_entries, &gpinfo); | |
3423 | ||
3424 | frv_got_section (info)->_raw_size = gpinfo.gothilo.max - gpinfo.gothilo.min | |
3425 | /* If an odd word is the last word of the GOT, we don't need this | |
3426 | word to be part of the GOT. */ | |
3427 | - (odd + 4 == gpinfo.gothilo.max ? 4 : 0); | |
3428 | if (frv_got_section (info)->_raw_size == 0) | |
3429 | frv_got_section (info)->flags |= SEC_EXCLUDE; | |
3430 | else if (frv_got_section (info)->_raw_size == 12 | |
3431 | && ! elf_hash_table (info)->dynamic_sections_created) | |
3432 | { | |
3433 | frv_got_section (info)->flags |= SEC_EXCLUDE; | |
3434 | frv_got_section (info)->_raw_size = 0; | |
3435 | } | |
3436 | else | |
3437 | { | |
3438 | frv_got_section (info)->contents = | |
3439 | (bfd_byte *) bfd_zalloc (dynobj, frv_got_section (info)->_raw_size); | |
3440 | if (frv_got_section (info)->contents == NULL) | |
3441 | return FALSE; | |
3442 | } | |
3443 | ||
3444 | if (elf_hash_table (info)->dynamic_sections_created) | |
3445 | /* Subtract the number of lzplt entries, since those will generate | |
3446 | relocations in the pltrel section. */ | |
3447 | frv_gotrel_section (info)->_raw_size = | |
3448 | (gpinfo.g.relocs - gpinfo.g.lzplt / 8) | |
3449 | * get_elf_backend_data (output_bfd)->s->sizeof_rel; | |
3450 | else | |
3451 | BFD_ASSERT (gpinfo.g.relocs == 0); | |
3452 | if (frv_gotrel_section (info)->_raw_size == 0) | |
3453 | frv_gotrel_section (info)->flags |= SEC_EXCLUDE; | |
3454 | else | |
3455 | { | |
3456 | frv_gotrel_section (info)->contents = | |
3457 | (bfd_byte *) bfd_zalloc (dynobj, frv_gotrel_section (info)->_raw_size); | |
3458 | if (frv_gotrel_section (info)->contents == NULL) | |
3459 | return FALSE; | |
3460 | } | |
3461 | ||
3462 | if (elf_elfheader (output_bfd)->e_flags & EF_FRV_FDPIC) | |
3463 | frv_gotfixup_section (info)->_raw_size = (gpinfo.g.fixups + 1) * 4; | |
3464 | if (frv_gotfixup_section (info)->_raw_size == 0) | |
3465 | frv_gotfixup_section (info)->flags |= SEC_EXCLUDE; | |
3466 | else | |
3467 | { | |
3468 | frv_gotfixup_section (info)->contents = | |
3469 | (bfd_byte *) bfd_zalloc (dynobj, | |
3470 | frv_gotfixup_section (info)->_raw_size); | |
3471 | if (frv_gotfixup_section (info)->contents == NULL) | |
3472 | return FALSE; | |
3473 | } | |
3474 | ||
3475 | if (elf_hash_table (info)->dynamic_sections_created) | |
3476 | { | |
3477 | frv_pltrel_section (info)->_raw_size = | |
3478 | gpinfo.g.lzplt / 8 * get_elf_backend_data (output_bfd)->s->sizeof_rel; | |
3479 | if (frv_pltrel_section (info)->_raw_size == 0) | |
3480 | frv_pltrel_section (info)->flags |= SEC_EXCLUDE; | |
3481 | else | |
3482 | { | |
3483 | frv_pltrel_section (info)->contents = | |
3484 | (bfd_byte *) bfd_zalloc (dynobj, | |
3485 | frv_pltrel_section (info)->_raw_size); | |
3486 | if (frv_pltrel_section (info)->contents == NULL) | |
3487 | return FALSE; | |
3488 | } | |
3489 | } | |
3490 | ||
3491 | /* Add 4 bytes for every block of at most 65535 lazy PLT entries, | |
3492 | such that there's room for the additional instruction needed to | |
3493 | call the resolver. Since _frv_assign_got_entries didn't account | |
3494 | for them, our block size is 4 bytes smaller than the real block | |
3495 | size. */ | |
3496 | if (elf_hash_table (info)->dynamic_sections_created) | |
3497 | { | |
3498 | frv_plt_section (info)->_raw_size = gpinfo.g.lzplt | |
3499 | + ((gpinfo.g.lzplt + (FRV_LZPLT_BLOCK_SIZE - 4) - 8) | |
3500 | / (FRV_LZPLT_BLOCK_SIZE - 4) * 4); | |
3501 | } | |
b34976b6 | 3502 | |
51532845 AO |
3503 | /* Reset it, such that _frv_assign_plt_entries() can use it to |
3504 | actually assign lazy PLT entries addresses. */ | |
3505 | gpinfo.g.lzplt = 0; | |
b34976b6 | 3506 | |
51532845 AO |
3507 | /* Save information that we're going to need to generate GOT and PLT |
3508 | entries. */ | |
3509 | frv_got_initial_offset (info) = -gpinfo.gothilo.min; | |
b34976b6 | 3510 | |
51532845 AO |
3511 | if (get_elf_backend_data (output_bfd)->want_got_sym) |
3512 | elf_hash_table (info)->hgot->root.u.def.value | |
3513 | += frv_got_initial_offset (info); | |
b34976b6 | 3514 | |
51532845 AO |
3515 | if (elf_hash_table (info)->dynamic_sections_created) |
3516 | frv_plt_initial_offset (info) = frv_plt_section (info)->_raw_size; | |
b34976b6 | 3517 | |
51532845 AO |
3518 | htab_traverse (frv_relocs_info (info), _frv_assign_plt_entries, &gpinfo); |
3519 | ||
3520 | /* Allocate the PLT section contents only after | |
3521 | _frv_assign_plt_entries has a chance to add the size of the | |
3522 | non-lazy PLT entries. */ | |
3523 | if (elf_hash_table (info)->dynamic_sections_created) | |
3524 | { | |
3525 | if (frv_plt_section (info)->_raw_size == 0) | |
3526 | frv_plt_section (info)->flags |= SEC_EXCLUDE; | |
4e5ba5b7 DB |
3527 | else |
3528 | { | |
51532845 AO |
3529 | frv_plt_section (info)->contents = |
3530 | (bfd_byte *) bfd_zalloc (dynobj, frv_plt_section (info)->_raw_size); | |
3531 | if (frv_plt_section (info)->contents == NULL) | |
3532 | return FALSE; | |
3533 | } | |
3534 | } | |
b34976b6 | 3535 | |
51532845 AO |
3536 | if (elf_hash_table (info)->dynamic_sections_created) |
3537 | { | |
3538 | if (frv_got_section (info)->_raw_size) | |
3539 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) | |
3540 | return FALSE; | |
3541 | ||
3542 | if (frv_pltrel_section (info)->_raw_size) | |
3543 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
3544 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_REL) | |
3545 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) | |
3546 | return FALSE; | |
3547 | ||
3548 | if (frv_gotrel_section (info)->_raw_size) | |
3549 | if (! bfd_elf32_add_dynamic_entry (info, DT_REL, 0) | |
3550 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELSZ, 0) | |
3551 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELENT, | |
3552 | sizeof (Elf32_External_Rel))) | |
3553 | return FALSE; | |
3554 | } | |
4e5ba5b7 | 3555 | |
51532845 AO |
3556 | return TRUE; |
3557 | } | |
b34976b6 | 3558 | |
51532845 AO |
3559 | static bfd_boolean |
3560 | elf32_frv_always_size_sections (bfd *output_bfd, | |
3561 | struct bfd_link_info *info) | |
3562 | { | |
3563 | if (!info->relocatable | |
3564 | && elf_elfheader (output_bfd)->e_flags & EF_FRV_FDPIC) | |
3565 | { | |
3566 | struct elf_link_hash_entry *h; | |
3567 | asection *sec; | |
b34976b6 | 3568 | |
51532845 AO |
3569 | /* Force a PT_GNU_STACK segment to be created. */ |
3570 | if (! elf_tdata (output_bfd)->stack_flags) | |
3571 | elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; | |
4e5ba5b7 | 3572 | |
51532845 AO |
3573 | /* Define __stacksize if it's not defined yet. */ |
3574 | h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", | |
3575 | FALSE, FALSE, FALSE); | |
3576 | if (! h || h->root.type != bfd_link_hash_defined | |
3577 | || h->type != STT_OBJECT | |
3578 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
3579 | { | |
ea01195e | 3580 | struct bfd_link_hash_entry *bh = NULL; |
4e5ba5b7 | 3581 | |
51532845 AO |
3582 | if (!(_bfd_generic_link_add_one_symbol |
3583 | (info, output_bfd, "__stacksize", | |
3584 | BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE, | |
3585 | (const char *) NULL, FALSE, | |
3586 | get_elf_backend_data (output_bfd)->collect, &bh))) | |
3587 | return FALSE; | |
4e5ba5b7 | 3588 | |
51532845 AO |
3589 | h = (struct elf_link_hash_entry *) bh; |
3590 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
3591 | h->type = STT_OBJECT; | |
3592 | } | |
4e5ba5b7 | 3593 | |
51532845 AO |
3594 | /* Create a stack section, and set its alignment. */ |
3595 | sec = bfd_make_section (output_bfd, ".stack"); | |
4e5ba5b7 | 3596 | |
51532845 AO |
3597 | if (sec == NULL |
3598 | || ! bfd_set_section_alignment (output_bfd, sec, 3)) | |
3599 | return FALSE; | |
3600 | } | |
4e5ba5b7 | 3601 | |
51532845 AO |
3602 | return TRUE; |
3603 | } | |
4e5ba5b7 | 3604 | |
51532845 AO |
3605 | static bfd_boolean |
3606 | elf32_frv_modify_segment_map (bfd *output_bfd, | |
3607 | struct bfd_link_info *info) | |
3608 | { | |
3609 | if (elf_elfheader (output_bfd)->e_flags & EF_FRV_FDPIC) | |
3610 | { | |
3611 | struct elf_segment_map *m; | |
4e5ba5b7 | 3612 | |
51532845 AO |
3613 | for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next) |
3614 | if (m->p_type == PT_GNU_STACK) | |
3615 | break; | |
3616 | ||
3617 | if (m) | |
4e5ba5b7 | 3618 | { |
51532845 AO |
3619 | asection *sec = bfd_get_section_by_name (output_bfd, ".stack"); |
3620 | struct elf_link_hash_entry *h; | |
4e5ba5b7 | 3621 | |
51532845 | 3622 | if (sec) |
4e5ba5b7 | 3623 | { |
51532845 AO |
3624 | /* Obtain the pointer to the __stacksize symbol. */ |
3625 | h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", | |
3626 | FALSE, FALSE, FALSE); | |
3627 | while (h->root.type == bfd_link_hash_indirect | |
3628 | || h->root.type == bfd_link_hash_warning) | |
3629 | h = (struct elf_link_hash_entry *)h->root.u.i.link; | |
3630 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
3631 | ||
3632 | /* Set the section size from the symbol value. We | |
3633 | intentionally ignore the symbol section. */ | |
3634 | if (h->root.type == bfd_link_hash_defined) | |
3635 | sec->_raw_size = h->root.u.def.value; | |
3636 | else | |
3637 | sec->_raw_size = DEFAULT_STACK_SIZE; | |
3638 | ||
3639 | /* Add the stack section to the PT_GNU_STACK segment, | |
3640 | such that its size and alignment requirements make it | |
3641 | to the segment. */ | |
3642 | m->sections[m->count] = sec; | |
3643 | m->count++; | |
3644 | } | |
3645 | } | |
3646 | } | |
b34976b6 | 3647 | |
51532845 AO |
3648 | return TRUE; |
3649 | } | |
b34976b6 | 3650 | |
51532845 | 3651 | /* Fill in code and data in dynamic sections. */ |
4e5ba5b7 | 3652 | |
51532845 AO |
3653 | static bfd_boolean |
3654 | elf32_frv_finish_dynamic_sections (bfd *output_bfd, | |
3655 | struct bfd_link_info *info) | |
3656 | { | |
3657 | bfd *dynobj; | |
3658 | asection *sdyn; | |
4e5ba5b7 | 3659 | |
51532845 | 3660 | dynobj = elf_hash_table (info)->dynobj; |
4e5ba5b7 | 3661 | |
51532845 AO |
3662 | if (frv_got_section (info)) |
3663 | { | |
3664 | BFD_ASSERT (frv_gotrel_section (info)->_raw_size | |
3665 | == (frv_gotrel_section (info)->reloc_count | |
3666 | * sizeof (Elf32_External_Rel))); | |
4e5ba5b7 | 3667 | |
51532845 AO |
3668 | if (frv_gotfixup_section (info)) |
3669 | { | |
3670 | if (elf_elfheader (output_bfd)->e_flags & EF_FRV_FDPIC) | |
3671 | { | |
3672 | struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot; | |
3673 | bfd_vma got_value = hgot->root.u.def.value | |
3674 | + hgot->root.u.def.section->output_section->vma | |
3675 | + hgot->root.u.def.section->output_offset; | |
4e5ba5b7 | 3676 | |
51532845 | 3677 | _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), |
3b712a1a | 3678 | got_value, 0); |
51532845 AO |
3679 | } |
3680 | ||
3681 | if (frv_gotfixup_section (info)->_raw_size | |
3682 | != (frv_gotfixup_section (info)->reloc_count * 4)) | |
3683 | { | |
3b712a1a AO |
3684 | if (frv_gotfixup_section (info)->_raw_size |
3685 | < frv_gotfixup_section (info)->reloc_count * 4) | |
3686 | { | |
3687 | info->callbacks->warning | |
3688 | (info, "LINKER BUG: .rofixup section size mismatch", | |
3689 | ".rofixup", NULL, NULL, 0); | |
3690 | abort (); | |
3691 | return FALSE; | |
3692 | } | |
3693 | else if (!elf_hash_table (info)->dynamic_sections_created) | |
51532845 AO |
3694 | { |
3695 | info->callbacks->warning | |
3696 | (info, "no dynamic sections, missing -melf32frvfd?", | |
3697 | ".rofixup", NULL, NULL, 0); | |
3698 | return FALSE; | |
3699 | } | |
3700 | BFD_ASSERT (0); | |
3701 | } | |
4e5ba5b7 DB |
3702 | } |
3703 | } | |
51532845 AO |
3704 | if (elf_hash_table (info)->dynamic_sections_created) |
3705 | { | |
3706 | BFD_ASSERT (frv_pltrel_section (info)->_raw_size | |
3707 | == (frv_pltrel_section (info)->reloc_count | |
3708 | * sizeof (Elf32_External_Rel))); | |
3709 | } | |
4e5ba5b7 | 3710 | |
51532845 | 3711 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
4e5ba5b7 | 3712 | |
51532845 | 3713 | if (elf_hash_table (info)->dynamic_sections_created) |
4e5ba5b7 | 3714 | { |
51532845 AO |
3715 | Elf32_External_Dyn * dyncon; |
3716 | Elf32_External_Dyn * dynconend; | |
3717 | ||
3718 | BFD_ASSERT (sdyn != NULL); | |
3719 | ||
3720 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3721 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
3722 | ||
3723 | for (; dyncon < dynconend; dyncon++) | |
4e5ba5b7 | 3724 | { |
51532845 | 3725 | Elf_Internal_Dyn dyn; |
4e5ba5b7 | 3726 | |
51532845 AO |
3727 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
3728 | ||
3729 | switch (dyn.d_tag) | |
4e5ba5b7 DB |
3730 | { |
3731 | default: | |
3732 | break; | |
3733 | ||
51532845 AO |
3734 | case DT_PLTGOT: |
3735 | dyn.d_un.d_ptr = frv_got_section (info)->output_section->vma | |
3736 | + frv_got_section (info)->output_offset | |
3737 | + frv_got_initial_offset (info); | |
3738 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3739 | break; | |
4e5ba5b7 | 3740 | |
51532845 AO |
3741 | case DT_JMPREL: |
3742 | dyn.d_un.d_ptr = frv_pltrel_section (info)->output_section->vma | |
3743 | + frv_pltrel_section (info)->output_offset; | |
3744 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3745 | break; | |
3746 | ||
3747 | case DT_PLTRELSZ: | |
3748 | if (frv_pltrel_section (info)->_cooked_size != 0) | |
3749 | dyn.d_un.d_val = frv_pltrel_section (info)->_cooked_size; | |
3750 | else | |
3751 | dyn.d_un.d_val = frv_pltrel_section (info)->_raw_size; | |
3752 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3753 | break; | |
4e5ba5b7 DB |
3754 | } |
3755 | } | |
3756 | } | |
4e5ba5b7 | 3757 | |
51532845 | 3758 | return TRUE; |
4e5ba5b7 DB |
3759 | } |
3760 | ||
51532845 AO |
3761 | /* Adjust a symbol defined by a dynamic object and referenced by a |
3762 | regular object. */ | |
4e5ba5b7 | 3763 | |
b34976b6 | 3764 | static bfd_boolean |
51532845 AO |
3765 | elf32_frv_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
3766 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4e5ba5b7 | 3767 | { |
51532845 AO |
3768 | bfd * dynobj; |
3769 | ||
3770 | dynobj = elf_hash_table (info)->dynobj; | |
3771 | ||
3772 | /* Make sure we know what is going on here. */ | |
3773 | BFD_ASSERT (dynobj != NULL | |
3774 | && (h->weakdef != NULL | |
3775 | || ((h->elf_link_hash_flags | |
3776 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3777 | && (h->elf_link_hash_flags | |
3778 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
3779 | && (h->elf_link_hash_flags | |
3780 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
3781 | ||
3782 | /* If this is a weak symbol, and there is a real definition, the | |
3783 | processor independent code will have arranged for us to see the | |
3784 | real definition first, and we can just use the same value. */ | |
3785 | if (h->weakdef != NULL) | |
3786 | { | |
3787 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
3788 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
3789 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
3790 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
3791 | } | |
3792 | ||
b34976b6 | 3793 | return TRUE; |
4e5ba5b7 DB |
3794 | } |
3795 | ||
51532845 | 3796 | /* Perform any actions needed for dynamic symbols. */ |
4e5ba5b7 | 3797 | |
b34976b6 | 3798 | static bfd_boolean |
51532845 AO |
3799 | elf32_frv_finish_dynamic_symbol (bfd *output_bfd ATTRIBUTE_UNUSED, |
3800 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3801 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED, | |
3802 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) | |
4e5ba5b7 | 3803 | { |
b34976b6 | 3804 | return TRUE; |
4e5ba5b7 | 3805 | } |
51532845 | 3806 | |
ec3391e7 AO |
3807 | /* Decide whether to attempt to turn absptr or lsda encodings in |
3808 | shared libraries into pcrel within the given input section. */ | |
3809 | ||
3810 | static bfd_boolean | |
3811 | frv_elf_use_relative_eh_frame (bfd *input_bfd, | |
3812 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3813 | asection *eh_frame_section ATTRIBUTE_UNUSED) | |
3814 | { | |
3815 | /* We can't use PC-relative encodings in FDPIC binaries, in general. */ | |
3816 | if (elf_elfheader (input_bfd)->e_flags & EF_FRV_FDPIC) | |
3817 | return FALSE; | |
3818 | ||
3819 | return TRUE; | |
3820 | } | |
3821 | ||
3822 | /* Adjust the contents of an eh_frame_hdr section before they're output. */ | |
3823 | ||
3824 | static bfd_byte | |
3825 | frv_elf_encode_eh_address (bfd *abfd, | |
3826 | struct bfd_link_info *info, | |
3827 | asection *osec, bfd_vma offset, | |
3828 | asection *loc_sec, bfd_vma loc_offset, | |
3829 | bfd_vma *encoded) | |
3830 | { | |
3831 | struct elf_link_hash_entry *h; | |
3832 | ||
3833 | /* Non-FDPIC binaries can use PC-relative encodings. */ | |
3834 | if (! (elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC)) | |
3835 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, | |
3836 | loc_sec, loc_offset, encoded); | |
3837 | ||
3838 | h = elf_hash_table (info)->hgot; | |
3839 | BFD_ASSERT (h && h->root.type == bfd_link_hash_defined); | |
3840 | ||
3841 | if (! h || (_frv_osec_to_segment (abfd, osec) | |
3842 | == _frv_osec_to_segment (abfd, loc_sec->output_section))) | |
3843 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, | |
3844 | loc_sec, loc_offset, encoded); | |
3845 | ||
3846 | BFD_ASSERT (_frv_osec_to_segment (abfd, osec) | |
3847 | == _frv_osec_to_segment (abfd, | |
3848 | h->root.u.def.section->output_section)); | |
3849 | ||
3850 | *encoded = osec->vma + offset | |
3851 | - (h->root.u.def.value | |
3852 | + h->root.u.def.section->output_section->vma | |
3853 | + h->root.u.def.section->output_offset); | |
3854 | ||
3855 | return DW_EH_PE_datarel | DW_EH_PE_sdata4; | |
3856 | } | |
3857 | ||
4e5ba5b7 | 3858 | /* Look through the relocs for a section during the first phase. |
51532845 AO |
3859 | |
3860 | Besides handling virtual table relocs for gc, we have to deal with | |
3861 | all sorts of PIC-related relocations. We describe below the | |
3862 | general plan on how to handle such relocations, even though we only | |
3863 | collect information at this point, storing them in hash tables for | |
3864 | perusal of later passes. | |
3865 | ||
3866 | 32 relocations are propagated to the linker output when creating | |
3867 | position-independent output. LO16 and HI16 relocations are not | |
3868 | supposed to be encountered in this case. | |
3869 | ||
3870 | LABEL16 should always be resolvable by the linker, since it's only | |
3871 | used by branches. | |
3872 | ||
3873 | LABEL24, on the other hand, is used by calls. If it turns out that | |
3874 | the target of a call is a dynamic symbol, a PLT entry must be | |
3875 | created for it, which triggers the creation of a private function | |
3876 | descriptor and, unless lazy binding is disabled, a lazy PLT entry. | |
3877 | ||
3878 | GPREL relocations require the referenced symbol to be in the same | |
3879 | segment as _gp, but this can only be checked later. | |
3880 | ||
3881 | All GOT, GOTOFF and FUNCDESC relocations require a .got section to | |
3882 | exist. LABEL24 might as well, since it may require a PLT entry, | |
3883 | that will require a got. | |
3884 | ||
3885 | Non-FUNCDESC GOT relocations require a GOT entry to be created | |
3886 | regardless of whether the symbol is dynamic. However, since a | |
3887 | global symbol that turns out to not be exported may have the same | |
3888 | address of a non-dynamic symbol, we don't assign GOT entries at | |
3889 | this point, such that we can share them in this case. A relocation | |
3890 | for the GOT entry always has to be created, be it to offset a | |
3891 | private symbol by the section load address, be it to get the symbol | |
3892 | resolved dynamically. | |
3893 | ||
3894 | FUNCDESC GOT relocations require a GOT entry to be created, and | |
3895 | handled as if a FUNCDESC relocation was applied to the GOT entry in | |
3896 | an object file. | |
3897 | ||
3898 | FUNCDESC relocations referencing a symbol that turns out to NOT be | |
3899 | dynamic cause a private function descriptor to be created. The | |
3900 | FUNCDESC relocation then decays to a 32 relocation that points at | |
3901 | the private descriptor. If the symbol is dynamic, the FUNCDESC | |
3902 | relocation is propagated to the linker output, such that the | |
3903 | dynamic linker creates the canonical descriptor, pointing to the | |
3904 | dynamically-resolved definition of the function. | |
3905 | ||
3906 | Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic | |
3907 | symbols that are assigned to the same segment as the GOT, but we | |
3908 | can only check this later, after we know the complete set of | |
3909 | symbols defined and/or exported. | |
3910 | ||
3911 | FUNCDESC GOTOFF relocations require a function descriptor to be | |
3912 | created and, unless lazy binding is disabled or the symbol is not | |
3913 | dynamic, a lazy PLT entry. Since we can't tell at this point | |
3914 | whether a symbol is going to be dynamic, we have to decide later | |
3915 | whether to create a lazy PLT entry or bind the descriptor directly | |
3916 | to the private function. | |
3917 | ||
3918 | FUNCDESC_VALUE relocations are not supposed to be present in object | |
3919 | files, but they may very well be simply propagated to the linker | |
3920 | output, since they have no side effect. | |
3921 | ||
3922 | ||
3923 | A function descriptor always requires a FUNCDESC_VALUE relocation. | |
3924 | Whether it's in .plt.rel or not depends on whether lazy binding is | |
3925 | enabled and on whether the referenced symbol is dynamic. | |
3926 | ||
3927 | The existence of a lazy PLT requires the resolverStub lazy PLT | |
3928 | entry to be present. | |
3929 | ||
3930 | ||
3931 | As for assignment of GOT, PLT and lazy PLT entries, and private | |
3932 | descriptors, we might do them all sequentially, but we can do | |
3933 | better than that. For example, we can place GOT entries and | |
3934 | private function descriptors referenced using 12-bit operands | |
3935 | closer to the PIC register value, such that these relocations don't | |
3936 | overflow. Those that are only referenced with LO16 relocations | |
3937 | could come next, but we may as well place PLT-required function | |
3938 | descriptors in the 12-bit range to make them shorter. Symbols | |
3939 | referenced with LO16/HI16 may come next, but we may place | |
3940 | additional function descriptors in the 16-bit range if we can | |
3941 | reliably tell that we've already placed entries that are ever | |
3942 | referenced with only LO16. PLT entries are therefore generated as | |
3943 | small as possible, while not introducing relocation overflows in | |
3944 | GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be | |
3945 | generated before or after PLT entries, but not intermingled with | |
3946 | them, such that we can have more lazy PLT entries in range for a | |
3947 | branch to the resolverStub. The resolverStub should be emitted at | |
3948 | the most distant location from the first lazy PLT entry such that | |
3949 | it's still in range for a branch, or closer, if there isn't a need | |
3950 | for so many lazy PLT entries. Additional lazy PLT entries may be | |
3951 | emitted after the resolverStub, as long as branches are still in | |
3952 | range. If the branch goes out of range, longer lazy PLT entries | |
3953 | are emitted. | |
3954 | ||
3955 | We could further optimize PLT and lazy PLT entries by giving them | |
3956 | priority in assignment to closer-to-gr17 locations depending on the | |
3957 | number of occurrences of references to them (assuming a function | |
3958 | that's called more often is more important for performance, so its | |
3959 | PLT entry should be faster), or taking hints from the compiler. | |
3960 | Given infinite time and money... :-) */ | |
b34976b6 AM |
3961 | |
3962 | static bfd_boolean | |
4e5ba5b7 DB |
3963 | elf32_frv_check_relocs (abfd, info, sec, relocs) |
3964 | bfd *abfd; | |
3965 | struct bfd_link_info *info; | |
3966 | asection *sec; | |
3967 | const Elf_Internal_Rela *relocs; | |
3968 | { | |
3969 | Elf_Internal_Shdr *symtab_hdr; | |
3970 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3971 | const Elf_Internal_Rela *rel; | |
3972 | const Elf_Internal_Rela *rel_end; | |
51532845 AO |
3973 | bfd *dynobj; |
3974 | struct frv_pic_relocs_info *picrel; | |
b34976b6 | 3975 | |
1049f94e | 3976 | if (info->relocatable) |
b34976b6 AM |
3977 | return TRUE; |
3978 | ||
4e5ba5b7 DB |
3979 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3980 | sym_hashes = elf_sym_hashes (abfd); | |
3981 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym); | |
3982 | if (!elf_bad_symtab (abfd)) | |
3983 | sym_hashes_end -= symtab_hdr->sh_info; | |
b34976b6 | 3984 | |
51532845 | 3985 | dynobj = elf_hash_table (info)->dynobj; |
4e5ba5b7 DB |
3986 | rel_end = relocs + sec->reloc_count; |
3987 | for (rel = relocs; rel < rel_end; rel++) | |
3988 | { | |
3989 | struct elf_link_hash_entry *h; | |
3990 | unsigned long r_symndx; | |
b34976b6 | 3991 | |
4e5ba5b7 DB |
3992 | r_symndx = ELF32_R_SYM (rel->r_info); |
3993 | if (r_symndx < symtab_hdr->sh_info) | |
3994 | h = NULL; | |
3995 | else | |
3996 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
b34976b6 | 3997 | |
51532845 AO |
3998 | switch (ELF32_R_TYPE (rel->r_info)) |
3999 | { | |
4000 | case R_FRV_LABEL24: | |
4001 | case R_FRV_32: | |
4002 | case R_FRV_GOT12: | |
4003 | case R_FRV_GOTHI: | |
4004 | case R_FRV_GOTLO: | |
4005 | case R_FRV_FUNCDESC_GOT12: | |
4006 | case R_FRV_FUNCDESC_GOTHI: | |
4007 | case R_FRV_FUNCDESC_GOTLO: | |
4008 | case R_FRV_GOTOFF12: | |
4009 | case R_FRV_GOTOFFHI: | |
4010 | case R_FRV_GOTOFFLO: | |
4011 | case R_FRV_FUNCDESC_GOTOFF12: | |
4012 | case R_FRV_FUNCDESC_GOTOFFHI: | |
4013 | case R_FRV_FUNCDESC_GOTOFFLO: | |
4014 | case R_FRV_FUNCDESC: | |
4015 | case R_FRV_FUNCDESC_VALUE: | |
4016 | if (! dynobj) | |
4017 | { | |
4018 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
4019 | if (! _frv_create_got_section (abfd, info)) | |
4020 | return FALSE; | |
4021 | } | |
4022 | if (h != NULL) | |
4023 | { | |
4024 | if (h->dynindx == -1) | |
4025 | switch (ELF_ST_VISIBILITY (h->other)) | |
4026 | { | |
4027 | case STV_INTERNAL: | |
4028 | case STV_HIDDEN: | |
4029 | break; | |
4030 | default: | |
4031 | bfd_elf32_link_record_dynamic_symbol (info, h); | |
4032 | break; | |
4033 | } | |
4034 | picrel | |
4035 | = frv_pic_relocs_info_for_global (frv_relocs_info (info), | |
4036 | abfd, h, | |
3b712a1a | 4037 | rel->r_addend, INSERT); |
51532845 AO |
4038 | } |
4039 | else | |
4040 | picrel = frv_pic_relocs_info_for_local (frv_relocs_info (info), | |
4041 | abfd, r_symndx, | |
3b712a1a | 4042 | rel->r_addend, INSERT); |
51532845 AO |
4043 | if (! picrel) |
4044 | return FALSE; | |
4045 | break; | |
4046 | ||
4047 | default: | |
4048 | picrel = NULL; | |
4049 | break; | |
4050 | } | |
4051 | ||
4e5ba5b7 DB |
4052 | switch (ELF32_R_TYPE (rel->r_info)) |
4053 | { | |
51532845 AO |
4054 | case R_FRV_LABEL24: |
4055 | picrel->call = 1; | |
4056 | break; | |
4057 | ||
4058 | case R_FRV_FUNCDESC_VALUE: | |
4059 | picrel->relocsfdv++; | |
4060 | if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC) | |
4061 | picrel->relocs32--; | |
4062 | /* Fall through. */ | |
4063 | case R_FRV_32: | |
4064 | picrel->sym = 1; | |
4065 | if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC) | |
4066 | picrel->relocs32++; | |
4067 | break; | |
4068 | ||
4069 | case R_FRV_GOT12: | |
4070 | picrel->got12 = 1; | |
4071 | break; | |
4072 | ||
4073 | case R_FRV_GOTHI: | |
4074 | case R_FRV_GOTLO: | |
4075 | picrel->gothilo = 1; | |
4076 | break; | |
4077 | ||
4078 | case R_FRV_FUNCDESC_GOT12: | |
4079 | picrel->fdgot12 = 1; | |
4080 | break; | |
4081 | ||
4082 | case R_FRV_FUNCDESC_GOTHI: | |
4083 | case R_FRV_FUNCDESC_GOTLO: | |
4084 | picrel->fdgothilo = 1; | |
4085 | break; | |
4086 | ||
4087 | case R_FRV_GOTOFF12: | |
4088 | case R_FRV_GOTOFFHI: | |
4089 | case R_FRV_GOTOFFLO: | |
4090 | picrel->gotoff = 1; | |
4091 | break; | |
4092 | ||
4093 | case R_FRV_FUNCDESC_GOTOFF12: | |
4094 | picrel->fdgoff12 = 1; | |
4095 | break; | |
4096 | ||
4097 | case R_FRV_FUNCDESC_GOTOFFHI: | |
4098 | case R_FRV_FUNCDESC_GOTOFFLO: | |
4099 | picrel->fdgoffhilo = 1; | |
4100 | break; | |
4101 | ||
4102 | case R_FRV_FUNCDESC: | |
4103 | picrel->fd = 1; | |
4104 | picrel->relocsfd++; | |
4105 | break; | |
4106 | ||
4e5ba5b7 DB |
4107 | /* This relocation describes the C++ object vtable hierarchy. |
4108 | Reconstruct it for later use during GC. */ | |
4109 | case R_FRV_GNU_VTINHERIT: | |
4110 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 4111 | return FALSE; |
4e5ba5b7 | 4112 | break; |
b34976b6 | 4113 | |
4e5ba5b7 DB |
4114 | /* This relocation describes which C++ vtable entries are actually |
4115 | used. Record for later use during GC. */ | |
4116 | case R_FRV_GNU_VTENTRY: | |
4117 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 4118 | return FALSE; |
4e5ba5b7 DB |
4119 | break; |
4120 | } | |
4121 | } | |
b34976b6 AM |
4122 | |
4123 | return TRUE; | |
4e5ba5b7 DB |
4124 | } |
4125 | ||
4126 | \f | |
4127 | /* Return the machine subcode from the ELF e_flags header. */ | |
4128 | ||
4129 | static int | |
4130 | elf32_frv_machine (abfd) | |
4131 | bfd *abfd; | |
4132 | { | |
4133 | switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK) | |
4134 | { | |
4135 | default: break; | |
9c8ee639 | 4136 | case EF_FRV_CPU_FR550: return bfd_mach_fr550; |
4e5ba5b7 | 4137 | case EF_FRV_CPU_FR500: return bfd_mach_fr500; |
676a64f4 RS |
4138 | case EF_FRV_CPU_FR450: return bfd_mach_fr450; |
4139 | case EF_FRV_CPU_FR405: return bfd_mach_fr400; | |
4e5ba5b7 DB |
4140 | case EF_FRV_CPU_FR400: return bfd_mach_fr400; |
4141 | case EF_FRV_CPU_FR300: return bfd_mach_fr300; | |
4142 | case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple; | |
4143 | case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat; | |
4144 | } | |
4145 | ||
4146 | return bfd_mach_frv; | |
4147 | } | |
4148 | ||
4149 | /* Set the right machine number for a FRV ELF file. */ | |
4150 | ||
b34976b6 | 4151 | static bfd_boolean |
4e5ba5b7 DB |
4152 | elf32_frv_object_p (abfd) |
4153 | bfd *abfd; | |
4154 | { | |
4155 | bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd)); | |
b34976b6 | 4156 | return TRUE; |
4e5ba5b7 DB |
4157 | } |
4158 | \f | |
4159 | /* Function to set the ELF flag bits. */ | |
4160 | ||
b34976b6 | 4161 | static bfd_boolean |
4e5ba5b7 DB |
4162 | frv_elf_set_private_flags (abfd, flags) |
4163 | bfd *abfd; | |
4164 | flagword flags; | |
4165 | { | |
4166 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
4167 | elf_flags_init (abfd) = TRUE; |
4168 | return TRUE; | |
4e5ba5b7 DB |
4169 | } |
4170 | ||
4171 | /* Copy backend specific data from one object module to another. */ | |
4172 | ||
b34976b6 | 4173 | static bfd_boolean |
4e5ba5b7 DB |
4174 | frv_elf_copy_private_bfd_data (ibfd, obfd) |
4175 | bfd *ibfd; | |
4176 | bfd *obfd; | |
4177 | { | |
4178 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4179 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 4180 | return TRUE; |
4e5ba5b7 DB |
4181 | |
4182 | BFD_ASSERT (!elf_flags_init (obfd) | |
4183 | || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); | |
4184 | ||
4185 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
b34976b6 AM |
4186 | elf_flags_init (obfd) = TRUE; |
4187 | return TRUE; | |
4e5ba5b7 DB |
4188 | } |
4189 | ||
676a64f4 RS |
4190 | /* Return true if the architecture described by elf header flag |
4191 | EXTENSION is an extension of the architecture described by BASE. */ | |
4192 | ||
4193 | static bfd_boolean | |
4194 | frv_elf_arch_extension_p (flagword base, flagword extension) | |
4195 | { | |
4196 | if (base == extension) | |
4197 | return TRUE; | |
4198 | ||
4199 | /* CPU_GENERIC code can be merged with code for a specific | |
4200 | architecture, in which case the result is marked as being | |
4201 | for the specific architecture. Everything is therefore | |
4202 | an extension of CPU_GENERIC. */ | |
4203 | if (base == EF_FRV_CPU_GENERIC) | |
4204 | return TRUE; | |
4205 | ||
4206 | if (extension == EF_FRV_CPU_FR450) | |
4207 | if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405) | |
4208 | return TRUE; | |
4209 | ||
4210 | if (extension == EF_FRV_CPU_FR405) | |
4211 | if (base == EF_FRV_CPU_FR400) | |
4212 | return TRUE; | |
4213 | ||
4214 | return FALSE; | |
4215 | } | |
4216 | ||
4e5ba5b7 DB |
4217 | /* Merge backend specific data from an object file to the output |
4218 | object file when linking. */ | |
4219 | ||
b34976b6 | 4220 | static bfd_boolean |
4e5ba5b7 DB |
4221 | frv_elf_merge_private_bfd_data (ibfd, obfd) |
4222 | bfd *ibfd; | |
4223 | bfd *obfd; | |
4224 | { | |
4225 | flagword old_flags, old_partial; | |
4226 | flagword new_flags, new_partial; | |
b34976b6 | 4227 | bfd_boolean error = FALSE; |
4e5ba5b7 DB |
4228 | char new_opt[80]; |
4229 | char old_opt[80]; | |
4230 | ||
4231 | new_opt[0] = old_opt[0] = '\0'; | |
4232 | new_flags = elf_elfheader (ibfd)->e_flags; | |
4233 | old_flags = elf_elfheader (obfd)->e_flags; | |
4234 | ||
51532845 AO |
4235 | if (new_flags & EF_FRV_FDPIC) |
4236 | new_flags &= ~EF_FRV_PIC; | |
4237 | ||
4e5ba5b7 DB |
4238 | #ifdef DEBUG |
4239 | (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s", | |
4240 | old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", | |
4241 | bfd_get_filename (ibfd)); | |
4242 | #endif | |
4243 | ||
4244 | if (!elf_flags_init (obfd)) /* First call, no flags set. */ | |
4245 | { | |
b34976b6 | 4246 | elf_flags_init (obfd) = TRUE; |
4e5ba5b7 DB |
4247 | old_flags = new_flags; |
4248 | } | |
4249 | ||
4250 | else if (new_flags == old_flags) /* Compatible flags are ok. */ | |
4251 | ; | |
4252 | ||
4253 | else /* Possibly incompatible flags. */ | |
4254 | { | |
4255 | /* Warn if different # of gprs are used. Note, 0 means nothing is | |
4256 | said about the size of gprs. */ | |
4257 | new_partial = (new_flags & EF_FRV_GPR_MASK); | |
4258 | old_partial = (old_flags & EF_FRV_GPR_MASK); | |
4259 | if (new_partial == old_partial) | |
4260 | ; | |
4261 | ||
4262 | else if (new_partial == 0) | |
4263 | ; | |
4264 | ||
4265 | else if (old_partial == 0) | |
4266 | old_flags |= new_partial; | |
4267 | ||
4268 | else | |
4269 | { | |
4270 | switch (new_partial) | |
4271 | { | |
4272 | default: strcat (new_opt, " -mgpr-??"); break; | |
4273 | case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break; | |
4274 | case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break; | |
4275 | } | |
4276 | ||
4277 | switch (old_partial) | |
4278 | { | |
4279 | default: strcat (old_opt, " -mgpr-??"); break; | |
4280 | case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break; | |
4281 | case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break; | |
4282 | } | |
4283 | } | |
4284 | ||
4285 | /* Warn if different # of fprs are used. Note, 0 means nothing is | |
4286 | said about the size of fprs. */ | |
4287 | new_partial = (new_flags & EF_FRV_FPR_MASK); | |
4288 | old_partial = (old_flags & EF_FRV_FPR_MASK); | |
4289 | if (new_partial == old_partial) | |
4290 | ; | |
4291 | ||
4292 | else if (new_partial == 0) | |
4293 | ; | |
4294 | ||
4295 | else if (old_partial == 0) | |
4296 | old_flags |= new_partial; | |
4297 | ||
4298 | else | |
4299 | { | |
4300 | switch (new_partial) | |
4301 | { | |
4302 | default: strcat (new_opt, " -mfpr-?"); break; | |
4303 | case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break; | |
4304 | case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break; | |
4305 | case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break; | |
4306 | } | |
4307 | ||
4308 | switch (old_partial) | |
4309 | { | |
4310 | default: strcat (old_opt, " -mfpr-?"); break; | |
4311 | case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break; | |
4312 | case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break; | |
4313 | case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break; | |
4314 | } | |
4315 | } | |
4316 | ||
4317 | /* Warn if different dword support was used. Note, 0 means nothing is | |
4318 | said about the dword support. */ | |
4319 | new_partial = (new_flags & EF_FRV_DWORD_MASK); | |
4320 | old_partial = (old_flags & EF_FRV_DWORD_MASK); | |
4321 | if (new_partial == old_partial) | |
4322 | ; | |
4323 | ||
4324 | else if (new_partial == 0) | |
4325 | ; | |
4326 | ||
4327 | else if (old_partial == 0) | |
4328 | old_flags |= new_partial; | |
4329 | ||
4330 | else | |
4331 | { | |
4332 | switch (new_partial) | |
4333 | { | |
4334 | default: strcat (new_opt, " -mdword-?"); break; | |
4335 | case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break; | |
4336 | case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break; | |
4337 | } | |
4338 | ||
4339 | switch (old_partial) | |
4340 | { | |
4341 | default: strcat (old_opt, " -mdword-?"); break; | |
4342 | case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break; | |
4343 | case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break; | |
4344 | } | |
4345 | } | |
4346 | ||
4347 | /* Or in flags that accumulate (ie, if one module uses it, mark that the | |
4348 | feature is used. */ | |
4349 | old_flags |= new_flags & (EF_FRV_DOUBLE | |
4350 | | EF_FRV_MEDIA | |
4351 | | EF_FRV_MULADD | |
4352 | | EF_FRV_NON_PIC_RELOCS); | |
4353 | ||
4354 | /* If any module was compiled without -G0, clear the G0 bit. */ | |
4355 | old_flags = ((old_flags & ~ EF_FRV_G0) | |
4356 | | (old_flags & new_flags & EF_FRV_G0)); | |
4357 | ||
4358 | /* If any module was compiled without -mnopack, clear the mnopack bit. */ | |
4359 | old_flags = ((old_flags & ~ EF_FRV_NOPACK) | |
4360 | | (old_flags & new_flags & EF_FRV_NOPACK)); | |
4361 | ||
4362 | /* We don't have to do anything if the pic flags are the same, or the new | |
4363 | module(s) were compiled with -mlibrary-pic. */ | |
4364 | new_partial = (new_flags & EF_FRV_PIC_FLAGS); | |
4365 | old_partial = (old_flags & EF_FRV_PIC_FLAGS); | |
4366 | if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0)) | |
4367 | ; | |
4368 | ||
4369 | /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic | |
4370 | flags if any from the new module. */ | |
4371 | else if ((old_partial & EF_FRV_LIBPIC) != 0) | |
4372 | old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial; | |
4373 | ||
4374 | /* If we have mixtures of -fpic and -fPIC, or in both bits. */ | |
4375 | else if (new_partial != 0 && old_partial != 0) | |
4376 | old_flags |= new_partial; | |
4377 | ||
4378 | /* One module was compiled for pic and the other was not, see if we have | |
4379 | had any relocations that are not pic-safe. */ | |
4380 | else | |
4381 | { | |
4382 | if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0) | |
4383 | old_flags |= new_partial; | |
4384 | else | |
4385 | { | |
4386 | old_flags &= ~ EF_FRV_PIC_FLAGS; | |
4387 | #ifndef FRV_NO_PIC_ERROR | |
b34976b6 | 4388 | error = TRUE; |
4e5ba5b7 DB |
4389 | (*_bfd_error_handler) |
4390 | (_("%s: compiled with %s and linked with modules that use non-pic relocations"), | |
4391 | bfd_get_filename (ibfd), | |
4392 | (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic"); | |
4393 | #endif | |
4394 | } | |
4395 | } | |
4396 | ||
4397 | /* Warn if different cpu is used (allow a specific cpu to override | |
4398 | the generic cpu). */ | |
4399 | new_partial = (new_flags & EF_FRV_CPU_MASK); | |
4400 | old_partial = (old_flags & EF_FRV_CPU_MASK); | |
676a64f4 | 4401 | if (frv_elf_arch_extension_p (new_partial, old_partial)) |
4e5ba5b7 DB |
4402 | ; |
4403 | ||
676a64f4 | 4404 | else if (frv_elf_arch_extension_p (old_partial, new_partial)) |
4e5ba5b7 DB |
4405 | old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial; |
4406 | ||
4407 | else | |
4408 | { | |
4409 | switch (new_partial) | |
4410 | { | |
4411 | default: strcat (new_opt, " -mcpu=?"); break; | |
4412 | case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break; | |
4413 | case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break; | |
9c8ee639 | 4414 | case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break; |
4e5ba5b7 | 4415 | case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break; |
676a64f4 RS |
4416 | case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break; |
4417 | case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break; | |
4e5ba5b7 DB |
4418 | case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break; |
4419 | case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break; | |
4420 | case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break; | |
4421 | } | |
4422 | ||
4423 | switch (old_partial) | |
4424 | { | |
4425 | default: strcat (old_opt, " -mcpu=?"); break; | |
4426 | case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break; | |
4427 | case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break; | |
9c8ee639 | 4428 | case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break; |
4e5ba5b7 | 4429 | case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break; |
676a64f4 RS |
4430 | case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break; |
4431 | case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break; | |
4e5ba5b7 DB |
4432 | case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break; |
4433 | case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break; | |
4434 | case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break; | |
4435 | } | |
4436 | } | |
b34976b6 | 4437 | |
4e5ba5b7 DB |
4438 | /* Print out any mismatches from above. */ |
4439 | if (new_opt[0]) | |
4440 | { | |
b34976b6 | 4441 | error = TRUE; |
4e5ba5b7 DB |
4442 | (*_bfd_error_handler) |
4443 | (_("%s: compiled with %s and linked with modules compiled with %s"), | |
4444 | bfd_get_filename (ibfd), new_opt, old_opt); | |
4445 | } | |
4446 | ||
4447 | /* Warn about any other mismatches */ | |
4448 | new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS); | |
4449 | old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS); | |
4450 | if (new_partial != old_partial) | |
4451 | { | |
4452 | old_flags |= new_partial; | |
b34976b6 | 4453 | error = TRUE; |
4e5ba5b7 DB |
4454 | (*_bfd_error_handler) |
4455 | (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"), | |
4456 | bfd_get_filename (ibfd), (long)new_partial, (long)old_partial); | |
4457 | } | |
4458 | } | |
4459 | ||
4460 | /* If the cpu is -mcpu=simple, then set the -mnopack bit. */ | |
4461 | if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE) | |
4462 | old_flags |= EF_FRV_NOPACK; | |
4463 | ||
4464 | /* Update the old flags now with changes made above. */ | |
4465 | old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK; | |
4466 | elf_elfheader (obfd)->e_flags = old_flags; | |
4467 | if (old_partial != (old_flags & EF_FRV_CPU_MASK)) | |
4468 | bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd)); | |
4469 | ||
4470 | if (error) | |
4471 | bfd_set_error (bfd_error_bad_value); | |
4472 | ||
4473 | return !error; | |
4474 | } | |
4475 | ||
4476 | \f | |
b34976b6 | 4477 | bfd_boolean |
4e5ba5b7 DB |
4478 | frv_elf_print_private_bfd_data (abfd, ptr) |
4479 | bfd *abfd; | |
4480 | PTR ptr; | |
4481 | { | |
4482 | FILE *file = (FILE *) ptr; | |
4483 | flagword flags; | |
4484 | ||
4485 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
4486 | ||
4487 | /* Print normal ELF private data. */ | |
4488 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
4489 | ||
4490 | flags = elf_elfheader (abfd)->e_flags; | |
4491 | fprintf (file, _("private flags = 0x%lx:"), (long)flags); | |
4492 | ||
4493 | switch (flags & EF_FRV_CPU_MASK) | |
4494 | { | |
4495 | default: break; | |
4496 | case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break; | |
9c8ee639 | 4497 | case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break; |
4e5ba5b7 | 4498 | case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break; |
676a64f4 RS |
4499 | case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break; |
4500 | case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break; | |
4e5ba5b7 DB |
4501 | case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break; |
4502 | case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break; | |
4503 | case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break; | |
4504 | } | |
4505 | ||
4506 | switch (flags & EF_FRV_GPR_MASK) | |
4507 | { | |
4508 | default: break; | |
4509 | case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break; | |
4510 | case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break; | |
4511 | } | |
4512 | ||
4513 | switch (flags & EF_FRV_FPR_MASK) | |
4514 | { | |
4515 | default: break; | |
4516 | case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break; | |
4517 | case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break; | |
4518 | case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break; | |
4519 | } | |
4520 | ||
4521 | switch (flags & EF_FRV_DWORD_MASK) | |
4522 | { | |
4523 | default: break; | |
4524 | case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break; | |
4525 | case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break; | |
4526 | } | |
4527 | ||
4528 | if (flags & EF_FRV_DOUBLE) | |
4529 | fprintf (file, " -mdouble"); | |
4530 | ||
4531 | if (flags & EF_FRV_MEDIA) | |
4532 | fprintf (file, " -mmedia"); | |
4533 | ||
4534 | if (flags & EF_FRV_MULADD) | |
4535 | fprintf (file, " -mmuladd"); | |
4536 | ||
4537 | if (flags & EF_FRV_PIC) | |
4538 | fprintf (file, " -fpic"); | |
4539 | ||
4540 | if (flags & EF_FRV_BIGPIC) | |
4541 | fprintf (file, " -fPIC"); | |
4542 | ||
51532845 AO |
4543 | if (flags & EF_FRV_LIBPIC) |
4544 | fprintf (file, " -mlibrary-pic"); | |
4545 | ||
4546 | if (flags & EF_FRV_FDPIC) | |
4547 | fprintf (file, " -mfdpic"); | |
4548 | ||
4e5ba5b7 DB |
4549 | if (flags & EF_FRV_NON_PIC_RELOCS) |
4550 | fprintf (file, " non-pic relocations"); | |
4551 | ||
4552 | if (flags & EF_FRV_G0) | |
4553 | fprintf (file, " -G0"); | |
4554 | ||
4555 | fputc ('\n', file); | |
b34976b6 | 4556 | return TRUE; |
4e5ba5b7 DB |
4557 | } |
4558 | ||
4559 | \f | |
4560 | #define ELF_ARCH bfd_arch_frv | |
4561 | #define ELF_MACHINE_CODE EM_CYGNUS_FRV | |
4562 | #define ELF_MAXPAGESIZE 0x1000 | |
4563 | ||
4564 | #define TARGET_BIG_SYM bfd_elf32_frv_vec | |
4565 | #define TARGET_BIG_NAME "elf32-frv" | |
4566 | ||
51532845 | 4567 | #define elf_info_to_howto_rel frv_info_to_howto_rel |
4e5ba5b7 DB |
4568 | #define elf_info_to_howto frv_info_to_howto_rela |
4569 | #define elf_backend_relocate_section elf32_frv_relocate_section | |
4570 | #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook | |
4571 | #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook | |
4572 | #define elf_backend_check_relocs elf32_frv_check_relocs | |
4573 | #define elf_backend_object_p elf32_frv_object_p | |
4574 | #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook | |
4575 | ||
4576 | #define elf_backend_can_gc_sections 1 | |
de2d743e | 4577 | #define elf_backend_rela_normal 1 |
4e5ba5b7 DB |
4578 | |
4579 | #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup | |
4580 | #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags | |
4581 | #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data | |
4582 | #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data | |
4583 | #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data | |
4584 | ||
51532845 AO |
4585 | #define bfd_elf32_bfd_link_hash_table_create frv_elf_link_hash_table_create |
4586 | #define elf_backend_always_size_sections \ | |
4587 | elf32_frv_always_size_sections | |
4588 | #define elf_backend_modify_segment_map \ | |
4589 | elf32_frv_modify_segment_map | |
4590 | ||
4591 | #define elf_backend_create_dynamic_sections \ | |
4592 | elf32_frv_create_dynamic_sections | |
4593 | #define elf_backend_adjust_dynamic_symbol \ | |
4594 | elf32_frv_adjust_dynamic_symbol | |
4595 | #define elf_backend_size_dynamic_sections \ | |
4596 | elf32_frv_size_dynamic_sections | |
4597 | #define elf_backend_finish_dynamic_symbol \ | |
4598 | elf32_frv_finish_dynamic_symbol | |
4599 | #define elf_backend_finish_dynamic_sections \ | |
4600 | elf32_frv_finish_dynamic_sections | |
4601 | ||
4602 | #define elf_backend_want_got_sym 1 | |
4603 | #define elf_backend_got_header_size 0 | |
4604 | #define elf_backend_want_got_plt 0 | |
4605 | #define elf_backend_plt_readonly 1 | |
4606 | #define elf_backend_want_plt_sym 0 | |
4607 | #define elf_backend_plt_header_size 0 | |
4608 | ||
ec3391e7 AO |
4609 | #define elf_backend_can_make_relative_eh_frame \ |
4610 | frv_elf_use_relative_eh_frame | |
4611 | #define elf_backend_can_make_lsda_relative_eh_frame \ | |
4612 | frv_elf_use_relative_eh_frame | |
4613 | #define elf_backend_encode_eh_address frv_elf_encode_eh_address | |
4614 | ||
51532845 AO |
4615 | #define elf_backend_may_use_rel_p 1 |
4616 | #define elf_backend_may_use_rela_p 1 | |
4617 | /* We use REL for dynamic relocations only. */ | |
4618 | #define elf_backend_default_use_rela_p 1 | |
4619 | ||
4e5ba5b7 | 4620 | #include "elf32-target.h" |