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3d3d428f | 1 | /* BFD back-end for National Semiconductor's CR16 ELF |
b3adc24a | 2 | Copyright (C) 2007-2020 Free Software Foundation, Inc. |
3d3d428f NC |
3 | Written by M R Swami Reddy. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
3d3d428f NC |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software Foundation, | |
19 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
20 | ||
21 | #include "sysdep.h" | |
22 | #include "bfd.h" | |
23 | #include "bfdlink.h" | |
24 | #include "libbfd.h" | |
25 | #include "libiberty.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/cr16.h" | |
ca05ca5e | 28 | #include "elf32-cr16.h" |
3d3d428f | 29 | |
99706f30 SR |
30 | /* The cr16 linker needs to keep track of the number of relocs that |
31 | it decides to copy in check_relocs for each symbol. This is so | |
32 | that it can discard PC relative relocs if it doesn't need them when | |
33 | linking with -Bsymbolic. We store the information in a field | |
34 | extending the regular ELF linker hash table. */ | |
35 | ||
4dfe6ac6 NC |
36 | struct elf32_cr16_link_hash_entry |
37 | { | |
99706f30 SR |
38 | /* The basic elf link hash table entry. */ |
39 | struct elf_link_hash_entry root; | |
40 | ||
41 | /* For function symbols, the number of times this function is | |
42 | called directly (ie by name). */ | |
43 | unsigned int direct_calls; | |
44 | ||
45 | /* For function symbols, the size of this function's stack | |
46 | (if <= 255 bytes). We stuff this into "call" instructions | |
47 | to this target when it's valid and profitable to do so. | |
48 | ||
49 | This does not include stack allocated by movm! */ | |
50 | unsigned char stack_size; | |
51 | ||
52 | /* For function symbols, arguments (if any) for movm instruction | |
53 | in the prologue. We stuff this value into "call" instructions | |
54 | to the target when it's valid and profitable to do so. */ | |
55 | unsigned char movm_args; | |
56 | ||
57 | /* For function symbols, the amount of stack space that would be allocated | |
58 | by the movm instruction. This is redundant with movm_args, but we | |
59 | add it to the hash table to avoid computing it over and over. */ | |
60 | unsigned char movm_stack_size; | |
61 | ||
62 | /* Used to mark functions which have had redundant parts of their | |
63 | prologue deleted. */ | |
64 | #define CR16_DELETED_PROLOGUE_BYTES 0x1 | |
65 | unsigned char flags; | |
66 | ||
67 | /* Calculated value. */ | |
68 | bfd_vma value; | |
69 | }; | |
70 | ||
3d3d428f NC |
71 | /* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */ |
72 | ||
73 | struct cr16_reloc_map | |
74 | { | |
75 | bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */ | |
07d6d2b8 | 76 | unsigned short cr16_reloc_type; /* CR16 relocation type. */ |
3d3d428f NC |
77 | }; |
78 | ||
79 | static const struct cr16_reloc_map cr16_reloc_map[R_CR16_MAX] = | |
80 | { | |
07d6d2b8 AM |
81 | {BFD_RELOC_NONE, R_CR16_NONE}, |
82 | {BFD_RELOC_CR16_NUM8, R_CR16_NUM8}, | |
3d3d428f NC |
83 | {BFD_RELOC_CR16_NUM16, R_CR16_NUM16}, |
84 | {BFD_RELOC_CR16_NUM32, R_CR16_NUM32}, | |
85 | {BFD_RELOC_CR16_NUM32a, R_CR16_NUM32a}, | |
86 | {BFD_RELOC_CR16_REGREL4, R_CR16_REGREL4}, | |
87 | {BFD_RELOC_CR16_REGREL4a, R_CR16_REGREL4a}, | |
88 | {BFD_RELOC_CR16_REGREL14, R_CR16_REGREL14}, | |
89 | {BFD_RELOC_CR16_REGREL14a, R_CR16_REGREL14a}, | |
90 | {BFD_RELOC_CR16_REGREL16, R_CR16_REGREL16}, | |
91 | {BFD_RELOC_CR16_REGREL20, R_CR16_REGREL20}, | |
92 | {BFD_RELOC_CR16_REGREL20a, R_CR16_REGREL20a}, | |
93 | {BFD_RELOC_CR16_ABS20, R_CR16_ABS20}, | |
94 | {BFD_RELOC_CR16_ABS24, R_CR16_ABS24}, | |
07d6d2b8 AM |
95 | {BFD_RELOC_CR16_IMM4, R_CR16_IMM4}, |
96 | {BFD_RELOC_CR16_IMM8, R_CR16_IMM8}, | |
3d3d428f NC |
97 | {BFD_RELOC_CR16_IMM16, R_CR16_IMM16}, |
98 | {BFD_RELOC_CR16_IMM20, R_CR16_IMM20}, | |
99 | {BFD_RELOC_CR16_IMM24, R_CR16_IMM24}, | |
100 | {BFD_RELOC_CR16_IMM32, R_CR16_IMM32}, | |
101 | {BFD_RELOC_CR16_IMM32a, R_CR16_IMM32a}, | |
102 | {BFD_RELOC_CR16_DISP4, R_CR16_DISP4}, | |
103 | {BFD_RELOC_CR16_DISP8, R_CR16_DISP8}, | |
104 | {BFD_RELOC_CR16_DISP16, R_CR16_DISP16}, | |
105 | {BFD_RELOC_CR16_DISP24, R_CR16_DISP24}, | |
7fac7ff4 NC |
106 | {BFD_RELOC_CR16_DISP24a, R_CR16_DISP24a}, |
107 | {BFD_RELOC_CR16_SWITCH8, R_CR16_SWITCH8}, | |
108 | {BFD_RELOC_CR16_SWITCH16, R_CR16_SWITCH16}, | |
99706f30 SR |
109 | {BFD_RELOC_CR16_SWITCH32, R_CR16_SWITCH32}, |
110 | {BFD_RELOC_CR16_GOT_REGREL20, R_CR16_GOT_REGREL20}, | |
111 | {BFD_RELOC_CR16_GOTC_REGREL20, R_CR16_GOTC_REGREL20}, | |
112 | {BFD_RELOC_CR16_GLOB_DAT, R_CR16_GLOB_DAT} | |
3d3d428f NC |
113 | }; |
114 | ||
115 | static reloc_howto_type cr16_elf_howto_table[] = | |
116 | { | |
07d6d2b8 AM |
117 | HOWTO (R_CR16_NONE, /* type */ |
118 | 0, /* rightshift */ | |
119 | 3, /* size */ | |
120 | 0, /* bitsize */ | |
121 | FALSE, /* pc_relative */ | |
122 | 0, /* bitpos */ | |
123 | complain_overflow_dont, /* complain_on_overflow */ | |
124 | bfd_elf_generic_reloc, /* special_function */ | |
125 | "R_CR16_NONE", /* name */ | |
126 | FALSE, /* partial_inplace */ | |
127 | 0, /* src_mask */ | |
128 | 0, /* dst_mask */ | |
129 | FALSE), /* pcrel_offset */ | |
130 | ||
131 | HOWTO (R_CR16_NUM8, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 0, /* size */ | |
134 | 8, /* bitsize */ | |
135 | FALSE, /* pc_relative */ | |
136 | 0, /* bitpos */ | |
137 | complain_overflow_bitfield,/* complain_on_overflow */ | |
138 | bfd_elf_generic_reloc, /* special_function */ | |
139 | "R_CR16_NUM8", /* name */ | |
140 | FALSE, /* partial_inplace */ | |
141 | 0x0, /* src_mask */ | |
142 | 0xff, /* dst_mask */ | |
143 | FALSE), /* pcrel_offset */ | |
144 | ||
145 | HOWTO (R_CR16_NUM16, /* type */ | |
146 | 0, /* rightshift */ | |
147 | 1, /* size */ | |
148 | 16, /* bitsize */ | |
149 | FALSE, /* pc_relative */ | |
150 | 0, /* bitpos */ | |
151 | complain_overflow_bitfield,/* complain_on_overflow */ | |
152 | bfd_elf_generic_reloc, /* special_function */ | |
153 | "R_CR16_NUM16", /* name */ | |
154 | FALSE, /* partial_inplace */ | |
155 | 0x0, /* src_mask */ | |
156 | 0xffff, /* dst_mask */ | |
157 | FALSE), /* pcrel_offset */ | |
158 | ||
159 | HOWTO (R_CR16_NUM32, /* type */ | |
160 | 0, /* rightshift */ | |
161 | 2, /* size */ | |
162 | 32, /* bitsize */ | |
163 | FALSE, /* pc_relative */ | |
164 | 0, /* bitpos */ | |
165 | complain_overflow_bitfield,/* complain_on_overflow */ | |
166 | bfd_elf_generic_reloc, /* special_function */ | |
167 | "R_CR16_NUM32", /* name */ | |
168 | FALSE, /* partial_inplace */ | |
169 | 0x0, /* src_mask */ | |
170 | 0xffffffff, /* dst_mask */ | |
171 | FALSE), /* pcrel_offset */ | |
172 | ||
173 | HOWTO (R_CR16_NUM32a, /* type */ | |
174 | 1, /* rightshift */ | |
175 | 2, /* size */ | |
176 | 32, /* bitsize */ | |
177 | FALSE, /* pc_relative */ | |
178 | 0, /* bitpos */ | |
179 | complain_overflow_bitfield,/* complain_on_overflow */ | |
180 | bfd_elf_generic_reloc, /* special_function */ | |
181 | "R_CR16_NUM32a", /* name */ | |
182 | FALSE, /* partial_inplace */ | |
183 | 0x0, /* src_mask */ | |
184 | 0xffffffff, /* dst_mask */ | |
185 | FALSE), /* pcrel_offset */ | |
186 | ||
187 | HOWTO (R_CR16_REGREL4, /* type */ | |
188 | 0, /* rightshift */ | |
189 | 0, /* size */ | |
190 | 4, /* bitsize */ | |
191 | FALSE, /* pc_relative */ | |
192 | 0, /* bitpos */ | |
193 | complain_overflow_bitfield,/* complain_on_overflow */ | |
194 | bfd_elf_generic_reloc, /* special_function */ | |
195 | "R_CR16_REGREL4", /* name */ | |
196 | FALSE, /* partial_inplace */ | |
197 | 0x0, /* src_mask */ | |
198 | 0xf, /* dst_mask */ | |
199 | FALSE), /* pcrel_offset */ | |
200 | ||
201 | HOWTO (R_CR16_REGREL4a, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 0, /* size */ | |
204 | 4, /* bitsize */ | |
205 | FALSE, /* pc_relative */ | |
206 | 0, /* bitpos */ | |
207 | complain_overflow_bitfield,/* complain_on_overflow */ | |
208 | bfd_elf_generic_reloc, /* special_function */ | |
209 | "R_CR16_REGREL4a", /* name */ | |
210 | FALSE, /* partial_inplace */ | |
211 | 0x0, /* src_mask */ | |
212 | 0xf, /* dst_mask */ | |
213 | FALSE), /* pcrel_offset */ | |
214 | ||
215 | HOWTO (R_CR16_REGREL14, /* type */ | |
216 | 0, /* rightshift */ | |
217 | 1, /* size */ | |
218 | 14, /* bitsize */ | |
219 | FALSE, /* pc_relative */ | |
220 | 0, /* bitpos */ | |
221 | complain_overflow_bitfield,/* complain_on_overflow */ | |
222 | bfd_elf_generic_reloc, /* special_function */ | |
223 | "R_CR16_REGREL14", /* name */ | |
224 | FALSE, /* partial_inplace */ | |
225 | 0x0, /* src_mask */ | |
226 | 0x3fff, /* dst_mask */ | |
227 | FALSE), /* pcrel_offset */ | |
228 | ||
229 | HOWTO (R_CR16_REGREL14a, /* type */ | |
230 | 0, /* rightshift */ | |
231 | 1, /* size */ | |
232 | 14, /* bitsize */ | |
233 | FALSE, /* pc_relative */ | |
234 | 0, /* bitpos */ | |
235 | complain_overflow_bitfield,/* complain_on_overflow */ | |
236 | bfd_elf_generic_reloc, /* special_function */ | |
237 | "R_CR16_REGREL14a", /* name */ | |
238 | FALSE, /* partial_inplace */ | |
239 | 0x0, /* src_mask */ | |
240 | 0x3fff, /* dst_mask */ | |
241 | FALSE), /* pcrel_offset */ | |
242 | ||
243 | HOWTO (R_CR16_REGREL16, /* type */ | |
244 | 0, /* rightshift */ | |
245 | 1, /* size */ | |
246 | 16, /* bitsize */ | |
247 | FALSE, /* pc_relative */ | |
248 | 0, /* bitpos */ | |
249 | complain_overflow_bitfield,/* complain_on_overflow */ | |
250 | bfd_elf_generic_reloc, /* special_function */ | |
251 | "R_CR16_REGREL16", /* name */ | |
252 | FALSE, /* partial_inplace */ | |
253 | 0x0, /* src_mask */ | |
254 | 0xffff, /* dst_mask */ | |
255 | FALSE), /* pcrel_offset */ | |
256 | ||
257 | HOWTO (R_CR16_REGREL20, /* type */ | |
258 | 0, /* rightshift */ | |
259 | 2, /* size */ | |
260 | 20, /* bitsize */ | |
261 | FALSE, /* pc_relative */ | |
262 | 0, /* bitpos */ | |
263 | complain_overflow_bitfield,/* complain_on_overflow */ | |
264 | bfd_elf_generic_reloc, /* special_function */ | |
265 | "R_CR16_REGREL20", /* name */ | |
266 | FALSE, /* partial_inplace */ | |
267 | 0x0, /* src_mask */ | |
268 | 0xfffff, /* dst_mask */ | |
269 | FALSE), /* pcrel_offset */ | |
270 | ||
271 | HOWTO (R_CR16_REGREL20a, /* type */ | |
272 | 0, /* rightshift */ | |
273 | 2, /* size */ | |
274 | 20, /* bitsize */ | |
275 | FALSE, /* pc_relative */ | |
276 | 0, /* bitpos */ | |
277 | complain_overflow_bitfield,/* complain_on_overflow */ | |
278 | bfd_elf_generic_reloc, /* special_function */ | |
279 | "R_CR16_REGREL20a", /* name */ | |
280 | FALSE, /* partial_inplace */ | |
281 | 0x0, /* src_mask */ | |
282 | 0xfffff, /* dst_mask */ | |
283 | FALSE), /* pcrel_offset */ | |
284 | ||
285 | HOWTO (R_CR16_ABS20, /* type */ | |
286 | 0, /* rightshift */ | |
287 | 2, /* size */ | |
288 | 20, /* bitsize */ | |
289 | FALSE, /* pc_relative */ | |
290 | 0, /* bitpos */ | |
291 | complain_overflow_bitfield,/* complain_on_overflow */ | |
292 | bfd_elf_generic_reloc, /* special_function */ | |
293 | "R_CR16_ABS20", /* name */ | |
294 | FALSE, /* partial_inplace */ | |
295 | 0x0, /* src_mask */ | |
296 | 0xfffff, /* dst_mask */ | |
297 | FALSE), /* pcrel_offset */ | |
298 | ||
299 | HOWTO (R_CR16_ABS24, /* type */ | |
300 | 0, /* rightshift */ | |
301 | 2, /* size */ | |
302 | 24, /* bitsize */ | |
303 | FALSE, /* pc_relative */ | |
304 | 0, /* bitpos */ | |
305 | complain_overflow_bitfield,/* complain_on_overflow */ | |
306 | bfd_elf_generic_reloc, /* special_function */ | |
307 | "R_CR16_ABS24", /* name */ | |
308 | FALSE, /* partial_inplace */ | |
309 | 0x0, /* src_mask */ | |
310 | 0xffffff, /* dst_mask */ | |
311 | FALSE), /* pcrel_offset */ | |
312 | ||
313 | HOWTO (R_CR16_IMM4, /* type */ | |
314 | 0, /* rightshift */ | |
315 | 0, /* size */ | |
316 | 4, /* bitsize */ | |
317 | FALSE, /* pc_relative */ | |
318 | 0, /* bitpos */ | |
319 | complain_overflow_bitfield,/* complain_on_overflow */ | |
320 | bfd_elf_generic_reloc, /* special_function */ | |
321 | "R_CR16_IMM4", /* name */ | |
322 | FALSE, /* partial_inplace */ | |
323 | 0x0, /* src_mask */ | |
324 | 0xf, /* dst_mask */ | |
325 | FALSE), /* pcrel_offset */ | |
326 | ||
327 | HOWTO (R_CR16_IMM8, /* type */ | |
328 | 0, /* rightshift */ | |
329 | 0, /* size */ | |
330 | 8, /* bitsize */ | |
331 | FALSE, /* pc_relative */ | |
332 | 0, /* bitpos */ | |
333 | complain_overflow_bitfield,/* complain_on_overflow */ | |
334 | bfd_elf_generic_reloc, /* special_function */ | |
335 | "R_CR16_IMM8", /* name */ | |
336 | FALSE, /* partial_inplace */ | |
337 | 0x0, /* src_mask */ | |
338 | 0xff, /* dst_mask */ | |
339 | FALSE), /* pcrel_offset */ | |
340 | ||
341 | HOWTO (R_CR16_IMM16, /* type */ | |
342 | 0, /* rightshift */ | |
343 | 1, /* size */ | |
344 | 16, /* bitsize */ | |
345 | FALSE, /* pc_relative */ | |
346 | 0, /* bitpos */ | |
347 | complain_overflow_bitfield,/* complain_on_overflow */ | |
348 | bfd_elf_generic_reloc, /* special_function */ | |
349 | "R_CR16_IMM16", /* name */ | |
350 | FALSE, /* partial_inplace */ | |
351 | 0x0, /* src_mask */ | |
352 | 0xffff, /* dst_mask */ | |
353 | FALSE), /* pcrel_offset */ | |
354 | ||
355 | HOWTO (R_CR16_IMM20, /* type */ | |
356 | 0, /* rightshift */ | |
357 | 2, /* size */ | |
358 | 20, /* bitsize */ | |
359 | FALSE, /* pc_relative */ | |
360 | 0, /* bitpos */ | |
361 | complain_overflow_bitfield,/* complain_on_overflow */ | |
362 | bfd_elf_generic_reloc, /* special_function */ | |
363 | "R_CR16_IMM20", /* name */ | |
364 | FALSE, /* partial_inplace */ | |
365 | 0x0, /* src_mask */ | |
366 | 0xfffff, /* dst_mask */ | |
367 | FALSE), /* pcrel_offset */ | |
368 | ||
369 | HOWTO (R_CR16_IMM24, /* type */ | |
370 | 0, /* rightshift */ | |
371 | 2, /* size */ | |
372 | 24, /* bitsize */ | |
373 | FALSE, /* pc_relative */ | |
374 | 0, /* bitpos */ | |
375 | complain_overflow_bitfield,/* complain_on_overflow */ | |
376 | bfd_elf_generic_reloc, /* special_function */ | |
377 | "R_CR16_IMM24", /* name */ | |
378 | FALSE, /* partial_inplace */ | |
379 | 0x0, /* src_mask */ | |
380 | 0xffffff, /* dst_mask */ | |
381 | FALSE), /* pcrel_offset */ | |
382 | ||
383 | HOWTO (R_CR16_IMM32, /* type */ | |
384 | 0, /* rightshift */ | |
385 | 2, /* size */ | |
386 | 32, /* bitsize */ | |
387 | FALSE, /* pc_relative */ | |
388 | 0, /* bitpos */ | |
389 | complain_overflow_bitfield,/* complain_on_overflow */ | |
390 | bfd_elf_generic_reloc, /* special_function */ | |
391 | "R_CR16_IMM32", /* name */ | |
392 | FALSE, /* partial_inplace */ | |
393 | 0x0, /* src_mask */ | |
394 | 0xffffffff, /* dst_mask */ | |
395 | FALSE), /* pcrel_offset */ | |
396 | ||
397 | HOWTO (R_CR16_IMM32a, /* type */ | |
398 | 1, /* rightshift */ | |
399 | 2, /* size */ | |
400 | 32, /* bitsize */ | |
401 | FALSE, /* pc_relative */ | |
402 | 0, /* bitpos */ | |
403 | complain_overflow_bitfield,/* complain_on_overflow */ | |
404 | bfd_elf_generic_reloc, /* special_function */ | |
405 | "R_CR16_IMM32a", /* name */ | |
406 | FALSE, /* partial_inplace */ | |
407 | 0x0, /* src_mask */ | |
408 | 0xffffffff, /* dst_mask */ | |
409 | FALSE), /* pcrel_offset */ | |
410 | ||
411 | HOWTO (R_CR16_DISP4, /* type */ | |
412 | 1, /* rightshift */ | |
413 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
414 | 4, /* bitsize */ | |
415 | TRUE, /* pc_relative */ | |
416 | 0, /* bitpos */ | |
417 | complain_overflow_unsigned, /* complain_on_overflow */ | |
418 | bfd_elf_generic_reloc, /* special_function */ | |
419 | "R_CR16_DISP4", /* name */ | |
420 | FALSE, /* partial_inplace */ | |
421 | 0x0, /* src_mask */ | |
422 | 0xf, /* dst_mask */ | |
423 | FALSE), /* pcrel_offset */ | |
424 | ||
425 | HOWTO (R_CR16_DISP8, /* type */ | |
426 | 1, /* rightshift */ | |
427 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
428 | 8, /* bitsize */ | |
429 | TRUE, /* pc_relative */ | |
430 | 0, /* bitpos */ | |
431 | complain_overflow_unsigned, /* complain_on_overflow */ | |
432 | bfd_elf_generic_reloc, /* special_function */ | |
433 | "R_CR16_DISP8", /* name */ | |
434 | FALSE, /* partial_inplace */ | |
435 | 0x0, /* src_mask */ | |
436 | 0x1ff, /* dst_mask */ | |
437 | FALSE), /* pcrel_offset */ | |
438 | ||
439 | HOWTO (R_CR16_DISP16, /* type */ | |
440 | 0, /* rightshift REVIITS: To sync with WinIDEA*/ | |
441 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
442 | 16, /* bitsize */ | |
443 | TRUE, /* pc_relative */ | |
444 | 0, /* bitpos */ | |
445 | complain_overflow_unsigned, /* complain_on_overflow */ | |
446 | bfd_elf_generic_reloc, /* special_function */ | |
447 | "R_CR16_DISP16", /* name */ | |
448 | FALSE, /* partial_inplace */ | |
449 | 0x0, /* src_mask */ | |
450 | 0x1ffff, /* dst_mask */ | |
451 | FALSE), /* pcrel_offset */ | |
3d3d428f NC |
452 | /* REVISIT: DISP24 should be left-shift by 2 as per ISA doc |
453 | but its not done, to sync with WinIDEA and CR16 4.1 tools */ | |
07d6d2b8 AM |
454 | HOWTO (R_CR16_DISP24, /* type */ |
455 | 0, /* rightshift */ | |
456 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
457 | 24, /* bitsize */ | |
458 | TRUE, /* pc_relative */ | |
459 | 0, /* bitpos */ | |
460 | complain_overflow_unsigned, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* special_function */ | |
462 | "R_CR16_DISP24", /* name */ | |
463 | FALSE, /* partial_inplace */ | |
464 | 0x0, /* src_mask */ | |
465 | 0x1ffffff, /* dst_mask */ | |
466 | FALSE), /* pcrel_offset */ | |
467 | ||
468 | HOWTO (R_CR16_DISP24a, /* type */ | |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 24, /* bitsize */ | |
472 | TRUE, /* pc_relative */ | |
473 | 0, /* bitpos */ | |
474 | complain_overflow_unsigned, /* complain_on_overflow */ | |
475 | bfd_elf_generic_reloc, /* special_function */ | |
476 | "R_CR16_DISP24a", /* name */ | |
477 | FALSE, /* partial_inplace */ | |
478 | 0x0, /* src_mask */ | |
479 | 0xffffff, /* dst_mask */ | |
480 | FALSE), /* pcrel_offset */ | |
7fac7ff4 NC |
481 | |
482 | /* An 8 bit switch table entry. This is generated for an expression | |
483 | such as ``.byte L1 - L2''. The offset holds the difference | |
484 | between the reloc address and L2. */ | |
07d6d2b8 AM |
485 | HOWTO (R_CR16_SWITCH8, /* type */ |
486 | 0, /* rightshift */ | |
487 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
488 | 8, /* bitsize */ | |
489 | FALSE, /* pc_relative */ | |
490 | 0, /* bitpos */ | |
491 | complain_overflow_unsigned, /* complain_on_overflow */ | |
492 | bfd_elf_generic_reloc, /* special_function */ | |
493 | "R_CR16_SWITCH8", /* name */ | |
494 | FALSE, /* partial_inplace */ | |
495 | 0x0, /* src_mask */ | |
496 | 0xff, /* dst_mask */ | |
497 | TRUE), /* pcrel_offset */ | |
7fac7ff4 NC |
498 | |
499 | /* A 16 bit switch table entry. This is generated for an expression | |
500 | such as ``.word L1 - L2''. The offset holds the difference | |
501 | between the reloc address and L2. */ | |
07d6d2b8 AM |
502 | HOWTO (R_CR16_SWITCH16, /* type */ |
503 | 0, /* rightshift */ | |
504 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
505 | 16, /* bitsize */ | |
506 | FALSE, /* pc_relative */ | |
507 | 0, /* bitpos */ | |
508 | complain_overflow_unsigned, /* complain_on_overflow */ | |
509 | bfd_elf_generic_reloc, /* special_function */ | |
510 | "R_CR16_SWITCH16", /* name */ | |
511 | FALSE, /* partial_inplace */ | |
512 | 0x0, /* src_mask */ | |
513 | 0xffff, /* dst_mask */ | |
514 | TRUE), /* pcrel_offset */ | |
7fac7ff4 NC |
515 | |
516 | /* A 32 bit switch table entry. This is generated for an expression | |
517 | such as ``.long L1 - L2''. The offset holds the difference | |
518 | between the reloc address and L2. */ | |
07d6d2b8 AM |
519 | HOWTO (R_CR16_SWITCH32, /* type */ |
520 | 0, /* rightshift */ | |
521 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
522 | 32, /* bitsize */ | |
523 | FALSE, /* pc_relative */ | |
524 | 0, /* bitpos */ | |
525 | complain_overflow_unsigned, /* complain_on_overflow */ | |
526 | bfd_elf_generic_reloc, /* special_function */ | |
527 | "R_CR16_SWITCH32", /* name */ | |
528 | FALSE, /* partial_inplace */ | |
529 | 0x0, /* src_mask */ | |
530 | 0xffffffff, /* dst_mask */ | |
531 | TRUE), /* pcrel_offset */ | |
532 | ||
533 | HOWTO (R_CR16_GOT_REGREL20, /* type */ | |
534 | 0, /* rightshift */ | |
535 | 2, /* size */ | |
536 | 20, /* bitsize */ | |
537 | FALSE, /* pc_relative */ | |
538 | 0, /* bitpos */ | |
539 | complain_overflow_bitfield,/* complain_on_overflow */ | |
540 | bfd_elf_generic_reloc, /* special_function */ | |
541 | "R_CR16_GOT_REGREL20", /* name */ | |
542 | TRUE, /* partial_inplace */ | |
543 | 0x0, /* src_mask */ | |
544 | 0xfffff, /* dst_mask */ | |
545 | FALSE), /* pcrel_offset */ | |
546 | ||
547 | HOWTO (R_CR16_GOTC_REGREL20, /* type */ | |
548 | 0, /* rightshift */ | |
549 | 2, /* size */ | |
550 | 20, /* bitsize */ | |
551 | FALSE, /* pc_relative */ | |
552 | 0, /* bitpos */ | |
553 | complain_overflow_bitfield,/* complain_on_overflow */ | |
554 | bfd_elf_generic_reloc, /* special_function */ | |
555 | "R_CR16_GOTC_REGREL20", /* name */ | |
556 | TRUE, /* partial_inplace */ | |
557 | 0x0, /* src_mask */ | |
558 | 0xfffff, /* dst_mask */ | |
559 | FALSE), /* pcrel_offset */ | |
560 | ||
561 | HOWTO (R_CR16_GLOB_DAT, /* type */ | |
562 | 0, /* rightshift */ | |
563 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
564 | 32, /* bitsize */ | |
565 | FALSE, /* pc_relative */ | |
566 | 0, /* bitpos */ | |
567 | complain_overflow_unsigned, /* complain_on_overflow */ | |
568 | bfd_elf_generic_reloc, /* special_function */ | |
569 | "R_CR16_GLOB_DAT", /* name */ | |
570 | FALSE, /* partial_inplace */ | |
571 | 0x0, /* src_mask */ | |
572 | 0xffffffff, /* dst_mask */ | |
573 | TRUE) /* pcrel_offset */ | |
3d3d428f NC |
574 | }; |
575 | ||
99706f30 SR |
576 | |
577 | /* Create the GOT section. */ | |
578 | ||
579 | static bfd_boolean | |
580 | _bfd_cr16_elf_create_got_section (bfd * abfd, struct bfd_link_info * info) | |
581 | { | |
582 | flagword flags; | |
583 | asection * s; | |
584 | struct elf_link_hash_entry * h; | |
585 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); | |
ce558b89 | 586 | struct elf_link_hash_table *htab = elf_hash_table (info); |
99706f30 SR |
587 | int ptralign; |
588 | ||
589 | /* This function may be called more than once. */ | |
ce558b89 | 590 | if (htab->sgot != NULL) |
99706f30 SR |
591 | return TRUE; |
592 | ||
593 | switch (bed->s->arch_size) | |
594 | { | |
595 | case 16: | |
596 | ptralign = 1; | |
597 | break; | |
598 | ||
599 | case 32: | |
600 | ptralign = 2; | |
601 | break; | |
602 | ||
603 | default: | |
604 | bfd_set_error (bfd_error_bad_value); | |
605 | return FALSE; | |
606 | } | |
607 | ||
608 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 609 | | SEC_LINKER_CREATED); |
99706f30 | 610 | |
3d4d4302 | 611 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
ce558b89 | 612 | htab->sgot= s; |
99706f30 | 613 | if (s == NULL |
fd361982 | 614 | || !bfd_set_section_alignment (s, ptralign)) |
99706f30 SR |
615 | return FALSE; |
616 | ||
617 | if (bed->want_got_plt) | |
618 | { | |
3d4d4302 | 619 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); |
ce558b89 | 620 | htab->sgotplt = s; |
99706f30 | 621 | if (s == NULL |
fd361982 | 622 | || !bfd_set_section_alignment (s, ptralign)) |
07d6d2b8 | 623 | return FALSE; |
99706f30 SR |
624 | } |
625 | ||
626 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
627 | (or .got.plt) section. We don't do this in the linker script | |
628 | because we don't want to define the symbol if we are not creating | |
629 | a global offset table. */ | |
630 | h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_"); | |
ce558b89 | 631 | htab->hgot = h; |
99706f30 SR |
632 | if (h == NULL) |
633 | return FALSE; | |
634 | ||
635 | /* The first bit of the global offset table is the header. */ | |
636 | s->size += bed->got_header_size; | |
637 | ||
638 | return TRUE; | |
639 | } | |
640 | ||
641 | ||
3d3d428f NC |
642 | /* Retrieve a howto ptr using a BFD reloc_code. */ |
643 | ||
644 | static reloc_howto_type * | |
0aa13fee | 645 | elf_cr16_reloc_type_lookup (bfd *abfd, |
07d6d2b8 | 646 | bfd_reloc_code_real_type code) |
3d3d428f NC |
647 | { |
648 | unsigned int i; | |
649 | ||
650 | for (i = 0; i < R_CR16_MAX; i++) | |
651 | if (code == cr16_reloc_map[i].bfd_reloc_enum) | |
652 | return &cr16_elf_howto_table[cr16_reloc_map[i].cr16_reloc_type]; | |
653 | ||
0aa13fee AM |
654 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
655 | abfd, code); | |
3d3d428f NC |
656 | return NULL; |
657 | } | |
658 | ||
659 | static reloc_howto_type * | |
660 | elf_cr16_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 661 | const char *r_name) |
3d3d428f NC |
662 | { |
663 | unsigned int i; | |
664 | ||
665 | for (i = 0; ARRAY_SIZE (cr16_elf_howto_table); i++) | |
666 | if (cr16_elf_howto_table[i].name != NULL | |
07d6d2b8 | 667 | && strcasecmp (cr16_elf_howto_table[i].name, r_name) == 0) |
3d3d428f NC |
668 | return cr16_elf_howto_table + i; |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | /* Retrieve a howto ptr using an internal relocation entry. */ | |
674 | ||
f3185997 | 675 | static bfd_boolean |
0aa13fee | 676 | elf_cr16_info_to_howto (bfd *abfd, arelent *cache_ptr, |
07d6d2b8 | 677 | Elf_Internal_Rela *dst) |
3d3d428f NC |
678 | { |
679 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); | |
680 | ||
cd21f5da NC |
681 | if (r_type >= R_CR16_MAX) |
682 | { | |
695344c0 | 683 | /* xgettext:c-format */ |
0aa13fee | 684 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 685 | abfd, r_type); |
cd21f5da | 686 | bfd_set_error (bfd_error_bad_value); |
f3185997 | 687 | return FALSE; |
cd21f5da | 688 | } |
99706f30 | 689 | cache_ptr->howto = cr16_elf_howto_table + r_type; |
f3185997 | 690 | return TRUE; |
99706f30 SR |
691 | } |
692 | ||
693 | /* Look through the relocs for a section during the first phase. | |
694 | Since we don't do .gots or .plts, we just need to consider the | |
695 | virtual table relocs for gc. */ | |
696 | ||
697 | static bfd_boolean | |
698 | cr16_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, | |
07d6d2b8 | 699 | const Elf_Internal_Rela *relocs) |
99706f30 SR |
700 | { |
701 | Elf_Internal_Shdr *symtab_hdr; | |
702 | Elf_Internal_Sym * isymbuf = NULL; | |
703 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
704 | const Elf_Internal_Rela *rel; | |
705 | const Elf_Internal_Rela *rel_end; | |
706 | bfd * dynobj; | |
707 | bfd_vma * local_got_offsets; | |
708 | asection * sgot; | |
709 | asection * srelgot; | |
710 | ||
711 | sgot = NULL; | |
712 | srelgot = NULL; | |
713 | bfd_boolean result = FALSE; | |
714 | ||
0e1862bb | 715 | if (bfd_link_relocatable (info)) |
99706f30 SR |
716 | return TRUE; |
717 | ||
718 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
719 | sym_hashes = elf_sym_hashes (abfd); | |
720 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); | |
721 | if (!elf_bad_symtab (abfd)) | |
722 | sym_hashes_end -= symtab_hdr->sh_info; | |
723 | ||
724 | dynobj = elf_hash_table (info)->dynobj; | |
725 | local_got_offsets = elf_local_got_offsets (abfd); | |
726 | rel_end = relocs + sec->reloc_count; | |
727 | for (rel = relocs; rel < rel_end; rel++) | |
728 | { | |
729 | struct elf_link_hash_entry *h; | |
730 | unsigned long r_symndx; | |
731 | ||
732 | r_symndx = ELF32_R_SYM (rel->r_info); | |
733 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 734 | h = NULL; |
99706f30 | 735 | else |
07d6d2b8 AM |
736 | { |
737 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
738 | while (h->root.type == bfd_link_hash_indirect | |
739 | || h->root.type == bfd_link_hash_warning) | |
740 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
741 | } | |
99706f30 SR |
742 | |
743 | /* Some relocs require a global offset table. */ | |
744 | if (dynobj == NULL) | |
07d6d2b8 AM |
745 | { |
746 | switch (ELF32_R_TYPE (rel->r_info)) | |
747 | { | |
748 | case R_CR16_GOT_REGREL20: | |
749 | case R_CR16_GOTC_REGREL20: | |
750 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
751 | if (! _bfd_cr16_elf_create_got_section (dynobj, info)) | |
752 | goto fail; | |
753 | break; | |
754 | ||
755 | default: | |
756 | break; | |
757 | } | |
758 | } | |
99706f30 SR |
759 | |
760 | switch (ELF32_R_TYPE (rel->r_info)) | |
07d6d2b8 AM |
761 | { |
762 | case R_CR16_GOT_REGREL20: | |
763 | case R_CR16_GOTC_REGREL20: | |
764 | /* This symbol requires a global offset table entry. */ | |
99706f30 | 765 | |
ce558b89 AM |
766 | sgot = elf_hash_table (info)->sgot; |
767 | srelgot = elf_hash_table (info)->srelgot; | |
768 | BFD_ASSERT (sgot != NULL && srelgot != NULL); | |
99706f30 | 769 | |
07d6d2b8 AM |
770 | if (h != NULL) |
771 | { | |
772 | if (h->got.offset != (bfd_vma) -1) | |
773 | /* We have already allocated space in the .got. */ | |
774 | break; | |
775 | ||
776 | h->got.offset = sgot->size; | |
777 | ||
778 | /* Make sure this symbol is output as a dynamic symbol. */ | |
779 | if (h->dynindx == -1) | |
780 | { | |
781 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
782 | goto fail; | |
783 | } | |
784 | ||
785 | srelgot->size += sizeof (Elf32_External_Rela); | |
786 | } | |
787 | else | |
788 | { | |
789 | /* This is a global offset table entry for a local | |
790 | symbol. */ | |
791 | if (local_got_offsets == NULL) | |
792 | { | |
793 | size_t size; | |
794 | unsigned int i; | |
795 | ||
796 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
797 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
798 | ||
799 | if (local_got_offsets == NULL) | |
800 | goto fail; | |
801 | ||
802 | elf_local_got_offsets (abfd) = local_got_offsets; | |
803 | ||
804 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
805 | local_got_offsets[i] = (bfd_vma) -1; | |
806 | } | |
807 | ||
808 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
809 | /* We have already allocated space in the .got. */ | |
810 | break; | |
811 | ||
812 | local_got_offsets[r_symndx] = sgot->size; | |
813 | ||
814 | if (bfd_link_executable (info)) | |
815 | /* If we are generating a shared object, we need to | |
816 | output a R_CR16_RELATIVE reloc so that the dynamic | |
817 | linker can adjust this GOT entry. */ | |
818 | srelgot->size += sizeof (Elf32_External_Rela); | |
819 | } | |
820 | ||
821 | sgot->size += 4; | |
822 | break; | |
823 | ||
824 | } | |
99706f30 SR |
825 | } |
826 | ||
c9594989 AM |
827 | result = TRUE; |
828 | fail: | |
829 | free (isymbuf); | |
99706f30 SR |
830 | |
831 | return result; | |
3d3d428f NC |
832 | } |
833 | ||
834 | /* Perform a relocation as part of a final link. */ | |
835 | ||
836 | static bfd_reloc_status_type | |
837 | cr16_elf_final_link_relocate (reloc_howto_type *howto, | |
07d6d2b8 AM |
838 | bfd *input_bfd, |
839 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
840 | asection *input_section, | |
841 | bfd_byte *contents, | |
842 | bfd_vma offset, | |
843 | bfd_vma Rvalue, | |
844 | bfd_vma addend, | |
845 | struct elf_link_hash_entry * h, | |
846 | unsigned long symndx ATTRIBUTE_UNUSED, | |
847 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
848 | asection *sec ATTRIBUTE_UNUSED, | |
849 | int is_local ATTRIBUTE_UNUSED) | |
3d3d428f NC |
850 | { |
851 | unsigned short r_type = howto->type; | |
852 | bfd_byte *hit_data = contents + offset; | |
853 | bfd_vma reloc_bits, check, Rvalue1; | |
99706f30 | 854 | |
3d3d428f NC |
855 | switch (r_type) |
856 | { | |
857 | case R_CR16_IMM4: | |
7fac7ff4 NC |
858 | case R_CR16_IMM20: |
859 | case R_CR16_ABS20: | |
860 | break; | |
861 | ||
3d3d428f NC |
862 | case R_CR16_IMM8: |
863 | case R_CR16_IMM16: | |
3d3d428f NC |
864 | case R_CR16_IMM32: |
865 | case R_CR16_IMM32a: | |
866 | case R_CR16_REGREL4: | |
867 | case R_CR16_REGREL4a: | |
868 | case R_CR16_REGREL14: | |
869 | case R_CR16_REGREL14a: | |
870 | case R_CR16_REGREL16: | |
871 | case R_CR16_REGREL20: | |
99706f30 SR |
872 | case R_CR16_REGREL20a: |
873 | case R_CR16_GOT_REGREL20: | |
874 | case R_CR16_GOTC_REGREL20: | |
3d3d428f NC |
875 | case R_CR16_ABS24: |
876 | case R_CR16_DISP16: | |
877 | case R_CR16_DISP24: | |
878 | /* 'hit_data' is relative to the start of the instruction, not the | |
07d6d2b8 | 879 | relocation offset. Advance it to account for the exact offset. */ |
3d3d428f NC |
880 | hit_data += 2; |
881 | break; | |
882 | ||
883 | case R_CR16_NONE: | |
884 | return bfd_reloc_ok; | |
885 | break; | |
886 | ||
887 | case R_CR16_DISP4: | |
7fac7ff4 | 888 | if (is_local) |
07d6d2b8 | 889 | Rvalue += -1; |
7fac7ff4 NC |
890 | break; |
891 | ||
3d3d428f NC |
892 | case R_CR16_DISP8: |
893 | case R_CR16_DISP24a: | |
7fac7ff4 | 894 | if (is_local) |
07d6d2b8 | 895 | Rvalue -= -1; |
7fac7ff4 NC |
896 | break; |
897 | ||
898 | case R_CR16_SWITCH8: | |
899 | case R_CR16_SWITCH16: | |
900 | case R_CR16_SWITCH32: | |
3d3d428f | 901 | /* We only care about the addend, where the difference between |
07d6d2b8 | 902 | expressions is kept. */ |
7fac7ff4 | 903 | Rvalue = 0; |
68ffbac6 | 904 | |
3d3d428f NC |
905 | default: |
906 | break; | |
907 | } | |
908 | ||
909 | if (howto->pc_relative) | |
910 | { | |
911 | /* Subtract the address of the section containing the location. */ | |
912 | Rvalue -= (input_section->output_section->vma | |
07d6d2b8 | 913 | + input_section->output_offset); |
3d3d428f NC |
914 | /* Subtract the position of the location within the section. */ |
915 | Rvalue -= offset; | |
916 | } | |
917 | ||
918 | /* Add in supplied addend. */ | |
919 | Rvalue += addend; | |
920 | ||
921 | /* Complain if the bitfield overflows, whether it is considered | |
922 | as signed or unsigned. */ | |
923 | check = Rvalue >> howto->rightshift; | |
924 | ||
925 | /* Assumes two's complement. This expression avoids | |
926 | overflow if howto->bitsize is the number of bits in | |
927 | bfd_vma. */ | |
928 | reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1; | |
929 | ||
99706f30 SR |
930 | /* For GOT and GOTC relocs no boundary checks applied. */ |
931 | if (!((r_type == R_CR16_GOT_REGREL20) | |
932 | || (r_type == R_CR16_GOTC_REGREL20))) | |
3d3d428f | 933 | { |
99706f30 | 934 | if (((bfd_vma) check & ~reloc_bits) != 0 |
07d6d2b8 AM |
935 | && (((bfd_vma) check & ~reloc_bits) |
936 | != (-(bfd_vma) 1 & ~reloc_bits))) | |
937 | { | |
938 | /* The above right shift is incorrect for a signed | |
939 | value. See if turning on the upper bits fixes the | |
940 | overflow. */ | |
941 | if (howto->rightshift && (bfd_signed_vma) Rvalue < 0) | |
942 | { | |
943 | check |= ((bfd_vma) - 1 | |
944 | & ~((bfd_vma) - 1 | |
945 | >> howto->rightshift)); | |
946 | ||
947 | if (((bfd_vma) check & ~reloc_bits) | |
948 | != (-(bfd_vma) 1 & ~reloc_bits)) | |
949 | return bfd_reloc_overflow; | |
950 | } | |
951 | else | |
952 | return bfd_reloc_overflow; | |
953 | } | |
3d3d428f | 954 | |
99706f30 SR |
955 | /* Drop unwanted bits from the value we are relocating to. */ |
956 | Rvalue >>= (bfd_vma) howto->rightshift; | |
3d3d428f | 957 | |
99706f30 SR |
958 | /* Apply dst_mask to select only relocatable part of the insn. */ |
959 | Rvalue &= howto->dst_mask; | |
960 | } | |
3d3d428f NC |
961 | |
962 | switch (howto->size) | |
963 | { | |
964 | case 0: | |
07d6d2b8 AM |
965 | if (r_type == R_CR16_DISP8) |
966 | { | |
967 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
968 | Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00) | |
969 | | (Rvalue1 & 0x00f0) | (Rvalue & 0xf)); | |
970 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
971 | } | |
972 | else if (r_type == R_CR16_IMM4) | |
973 | { | |
974 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
975 | Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0) | |
976 | | ((Rvalue1 & 0x0f00) >> 8)); | |
977 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
978 | } | |
979 | else if (r_type == R_CR16_DISP4) | |
980 | { | |
981 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
982 | Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4)); | |
983 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
984 | } | |
985 | else | |
986 | { | |
987 | bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data); | |
988 | } | |
989 | break; | |
3d3d428f NC |
990 | |
991 | case 1: | |
07d6d2b8 AM |
992 | if (r_type == R_CR16_DISP16) |
993 | { | |
994 | Rvalue |= (bfd_get_16 (input_bfd, hit_data)); | |
995 | Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1)); | |
996 | } | |
997 | if (r_type == R_CR16_IMM16) | |
998 | { | |
999 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
1000 | ||
1001 | /* Add or subtract the offset value. */ | |
1002 | if (Rvalue1 & 0x8000) | |
1003 | Rvalue -= (~Rvalue1 + 1) & 0xffff; | |
1004 | else | |
1005 | Rvalue += Rvalue1; | |
1006 | ||
1007 | /* Check for range. */ | |
1008 | if ((long) Rvalue > 0xffff || (long) Rvalue < 0x0) | |
1009 | return bfd_reloc_overflow; | |
1010 | } | |
1011 | ||
1012 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
1013 | break; | |
3d3d428f NC |
1014 | |
1015 | case 2: | |
07d6d2b8 AM |
1016 | if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20)) |
1017 | { | |
1018 | Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2) | |
1019 | | (((bfd_get_16 (input_bfd, hit_data) & 0xf) <<16))); | |
1020 | ||
1021 | /* Add or subtract the offset value. */ | |
1022 | if (Rvalue1 & 0x80000) | |
1023 | Rvalue -= (~Rvalue1 + 1) & 0xfffff; | |
1024 | else | |
1025 | Rvalue += Rvalue1; | |
1026 | ||
1027 | /* Check for range. */ | |
1028 | if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0) | |
1029 | return bfd_reloc_overflow; | |
1030 | ||
1031 | bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0) | |
1032 | | ((Rvalue >> 16) & 0xf)), hit_data); | |
1033 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
1034 | } | |
1035 | else if (r_type == R_CR16_GOT_REGREL20) | |
1036 | { | |
1037 | asection *sgot = elf_hash_table (info)->sgot; | |
1038 | ||
1039 | if (h != NULL) | |
1040 | { | |
1041 | bfd_vma off; | |
1042 | ||
1043 | off = h->got.offset; | |
1044 | BFD_ASSERT (off != (bfd_vma) -1); | |
1045 | ||
1046 | if (! elf_hash_table (info)->dynamic_sections_created | |
1047 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
1048 | /* This is actually a static link, or it is a | |
1049 | -Bsymbolic link and the symbol is defined | |
1050 | locally, or the symbol was forced to be local | |
1051 | because of a version file. We must initialize | |
1052 | this entry in the global offset table. | |
1053 | When doing a dynamic link, we create a .rela.got | |
1054 | relocation entry to initialize the value. This | |
1055 | is done in the finish_dynamic_symbol routine. */ | |
1056 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1057 | ||
1058 | Rvalue = sgot->output_offset + off; | |
1059 | } | |
1060 | else | |
1061 | { | |
1062 | bfd_vma off; | |
1063 | ||
1064 | off = elf_local_got_offsets (input_bfd)[symndx]; | |
1065 | bfd_put_32 (output_bfd,Rvalue, sgot->contents + off); | |
1066 | ||
1067 | Rvalue = sgot->output_offset + off; | |
1068 | } | |
1069 | ||
1070 | Rvalue += addend; | |
1071 | ||
1072 | /* REVISIT: if ((long) Rvalue > 0xffffff || | |
1073 | (long) Rvalue < -0x800000). */ | |
1074 | if ((long) Rvalue > 0xffffff || (long) Rvalue < 0) | |
1075 | return bfd_reloc_overflow; | |
1076 | ||
1077 | ||
1078 | bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data)) | |
1079 | | (((Rvalue >> 16) & 0xf) << 8), hit_data); | |
1080 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
1081 | ||
1082 | } | |
1083 | else if (r_type == R_CR16_GOTC_REGREL20) | |
1084 | { | |
1085 | asection *sgot = elf_hash_table (info)->sgot; | |
1086 | ||
1087 | if (h != NULL) | |
1088 | { | |
1089 | bfd_vma off; | |
1090 | ||
1091 | off = h->got.offset; | |
1092 | BFD_ASSERT (off != (bfd_vma) -1); | |
1093 | ||
1094 | Rvalue >>=1; /* For code symbols. */ | |
1095 | ||
1096 | if (! elf_hash_table (info)->dynamic_sections_created | |
1097 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
1098 | /* This is actually a static link, or it is a | |
1099 | -Bsymbolic link and the symbol is defined | |
1100 | locally, or the symbol was forced to be local | |
1101 | because of a version file. We must initialize | |
1102 | this entry in the global offset table. | |
1103 | When doing a dynamic link, we create a .rela.got | |
1104 | relocation entry to initialize the value. This | |
1105 | is done in the finish_dynamic_symbol routine. */ | |
1106 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1107 | ||
1108 | Rvalue = sgot->output_offset + off; | |
1109 | } | |
1110 | else | |
1111 | { | |
1112 | bfd_vma off; | |
1113 | ||
1114 | off = elf_local_got_offsets (input_bfd)[symndx]; | |
1115 | Rvalue >>= 1; | |
1116 | bfd_put_32 (output_bfd,Rvalue, sgot->contents + off); | |
1117 | Rvalue = sgot->output_offset + off; | |
1118 | } | |
1119 | ||
1120 | Rvalue += addend; | |
1121 | ||
1122 | /* Check if any value in DISP. */ | |
1123 | Rvalue1 =((bfd_get_32 (input_bfd, hit_data) >>16) | |
1124 | | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)); | |
1125 | ||
1126 | /* Add or subtract the offset value. */ | |
1127 | if (Rvalue1 & 0x80000) | |
1128 | Rvalue -= (~Rvalue1 + 1) & 0xfffff; | |
1129 | else | |
1130 | Rvalue += Rvalue1; | |
1131 | ||
1132 | /* Check for range. */ | |
1133 | /* REVISIT: if ((long) Rvalue > 0xffffff | |
1134 | || (long) Rvalue < -0x800000). */ | |
1135 | if ((long) Rvalue > 0xffffff || (long) Rvalue < 0) | |
1136 | return bfd_reloc_overflow; | |
1137 | ||
1138 | bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data)) | |
1139 | | (((Rvalue >> 16) & 0xf) << 8), hit_data); | |
1140 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
1141 | } | |
1142 | else | |
1143 | { | |
1144 | if (r_type == R_CR16_ABS24) | |
1145 | { | |
1146 | Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16) | |
1147 | | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16) | |
1148 | | (((bfd_get_32 (input_bfd, hit_data) & 0xf) <<20))); | |
1149 | ||
1150 | /* Add or subtract the offset value. */ | |
1151 | if (Rvalue1 & 0x800000) | |
1152 | Rvalue -= (~Rvalue1 + 1) & 0xffffff; | |
1153 | else | |
1154 | Rvalue += Rvalue1; | |
1155 | ||
1156 | /* Check for Range. */ | |
1157 | if ((long) Rvalue > 0xffffff || (long) Rvalue < 0x0) | |
1158 | return bfd_reloc_overflow; | |
1159 | ||
1160 | Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8) | |
1161 | | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0)) | |
1162 | | ((Rvalue & 0xffff) << 16)); | |
1163 | } | |
1164 | else if (r_type == R_CR16_DISP24) | |
1165 | { | |
1166 | Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8) | |
1167 | | (bfd_get_16 (input_bfd, hit_data))) | |
1168 | | (((Rvalue & 0xfffe) | ((Rvalue >> 24) & 0x1)) << 16)); | |
1169 | } | |
1170 | else if ((r_type == R_CR16_IMM32) || (r_type == R_CR16_IMM32a)) | |
1171 | { | |
1172 | Rvalue1 =((((bfd_get_32 (input_bfd, hit_data)) >> 16) &0xffff) | |
1173 | | (((bfd_get_32 (input_bfd, hit_data)) &0xffff)) << 16); | |
1174 | ||
1175 | /* Add or subtract the offset value. */ | |
1176 | if (Rvalue1 & 0x80000000) | |
1177 | Rvalue -= (~Rvalue1 + 1) & 0xffffffff; | |
1178 | else | |
1179 | Rvalue += Rvalue1; | |
1180 | ||
1181 | /* Check for range. */ | |
1182 | if (Rvalue > 0xffffffff || (long) Rvalue < 0x0) | |
1183 | return bfd_reloc_overflow; | |
1184 | ||
1185 | Rvalue = (((Rvalue >> 16)& 0xffff) | (Rvalue & 0xffff) << 16); | |
1186 | } | |
1187 | else if (r_type == R_CR16_DISP24a) | |
1188 | { | |
1189 | Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23))); | |
1190 | Rvalue = ((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16) | |
1191 | | (bfd_get_32 (input_bfd, hit_data)); | |
1192 | } | |
1193 | else if ((r_type == R_CR16_REGREL20) | |
1194 | || (r_type == R_CR16_REGREL20a)) | |
1195 | { | |
1196 | Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16) | |
1197 | | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)); | |
1198 | /* Add or subtract the offset value. */ | |
1199 | if (Rvalue1 & 0x80000) | |
1200 | Rvalue -= (~Rvalue1 + 1) & 0xfffff; | |
1201 | else | |
1202 | Rvalue += Rvalue1; | |
1203 | ||
1204 | /* Check for range. */ | |
1205 | if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0) | |
1206 | return bfd_reloc_overflow; | |
1207 | ||
1208 | Rvalue = (((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8) | |
1209 | | ((Rvalue & 0xffff) << 16))) | |
1210 | | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff)); | |
1211 | ||
1212 | } | |
1213 | else if (r_type == R_CR16_NUM32) | |
1214 | { | |
1215 | Rvalue1 = (bfd_get_32 (input_bfd, hit_data)); | |
1216 | ||
1217 | /* Add or subtract the offset value */ | |
1218 | if (Rvalue1 & 0x80000000) | |
1219 | Rvalue -= (~Rvalue1 + 1) & 0xffffffff; | |
1220 | else | |
1221 | Rvalue += Rvalue1; | |
1222 | ||
1223 | /* Check for Ranga */ | |
1224 | if (Rvalue > 0xffffffff) | |
1225 | return bfd_reloc_overflow; | |
1226 | } | |
1227 | ||
1228 | bfd_put_32 (input_bfd, Rvalue, hit_data); | |
1229 | } | |
1230 | break; | |
3d3d428f NC |
1231 | |
1232 | default: | |
07d6d2b8 | 1233 | return bfd_reloc_notsupported; |
3d3d428f NC |
1234 | } |
1235 | ||
1236 | return bfd_reloc_ok; | |
1237 | } | |
1238 | ||
1239 | /* Delete some bytes from a section while relaxing. */ | |
1240 | ||
1241 | static bfd_boolean | |
1242 | elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd, | |
07d6d2b8 | 1243 | asection *sec, bfd_vma addr, int count) |
3d3d428f NC |
1244 | { |
1245 | Elf_Internal_Shdr *symtab_hdr; | |
1246 | unsigned int sec_shndx; | |
1247 | bfd_byte *contents; | |
1248 | Elf_Internal_Rela *irel, *irelend; | |
3d3d428f NC |
1249 | bfd_vma toaddr; |
1250 | Elf_Internal_Sym *isym; | |
1251 | Elf_Internal_Sym *isymend; | |
1252 | struct elf_link_hash_entry **sym_hashes; | |
1253 | struct elf_link_hash_entry **end_hashes; | |
1254 | struct elf_link_hash_entry **start_hashes; | |
1255 | unsigned int symcount; | |
1256 | ||
1257 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1258 | ||
1259 | contents = elf_section_data (sec)->this_hdr.contents; | |
1260 | ||
3d3d428f NC |
1261 | toaddr = sec->size; |
1262 | ||
1263 | irel = elf_section_data (sec)->relocs; | |
1264 | irelend = irel + sec->reloc_count; | |
1265 | ||
1266 | /* Actually delete the bytes. */ | |
1267 | memmove (contents + addr, contents + addr + count, | |
07d6d2b8 | 1268 | (size_t) (toaddr - addr - count)); |
3d3d428f NC |
1269 | sec->size -= count; |
1270 | ||
1271 | /* Adjust all the relocs. */ | |
1272 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1273 | /* Get the new reloc address. */ | |
1274 | if ((irel->r_offset > addr && irel->r_offset < toaddr)) | |
07d6d2b8 | 1275 | irel->r_offset -= count; |
3d3d428f NC |
1276 | |
1277 | /* Adjust the local symbols defined in this section. */ | |
1278 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1279 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1280 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
1281 | { | |
1282 | if (isym->st_shndx == sec_shndx | |
07d6d2b8 AM |
1283 | && isym->st_value > addr |
1284 | && isym->st_value < toaddr) | |
1285 | { | |
1286 | /* Adjust the addend of SWITCH relocations in this section, | |
1287 | which reference this local symbol. */ | |
99706f30 | 1288 | #if 0 |
07d6d2b8 AM |
1289 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) |
1290 | { | |
1291 | unsigned long r_symndx; | |
1292 | Elf_Internal_Sym *rsym; | |
1293 | bfd_vma addsym, subsym; | |
1294 | ||
1295 | /* Skip if not a SWITCH relocation. */ | |
1296 | if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8 | |
1297 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16 | |
1298 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32) | |
1299 | continue; | |
1300 | ||
1301 | r_symndx = ELF32_R_SYM (irel->r_info); | |
1302 | rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx; | |
1303 | ||
1304 | /* Skip if not the local adjusted symbol. */ | |
1305 | if (rsym != isym) | |
1306 | continue; | |
1307 | ||
1308 | addsym = isym->st_value; | |
1309 | subsym = addsym - irel->r_addend; | |
1310 | ||
1311 | /* Fix the addend only when -->> (addsym > addr >= subsym). */ | |
1312 | if (subsym <= addr) | |
1313 | irel->r_addend -= count; | |
1314 | else | |
1315 | continue; | |
1316 | } | |
99706f30 | 1317 | #endif |
3d3d428f | 1318 | |
07d6d2b8 AM |
1319 | isym->st_value -= count; |
1320 | } | |
3d3d428f NC |
1321 | } |
1322 | ||
1323 | /* Now adjust the global symbols defined in this section. */ | |
1324 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
07d6d2b8 | 1325 | - symtab_hdr->sh_info); |
3d3d428f NC |
1326 | sym_hashes = start_hashes = elf_sym_hashes (abfd); |
1327 | end_hashes = sym_hashes + symcount; | |
1328 | ||
1329 | for (; sym_hashes < end_hashes; sym_hashes++) | |
1330 | { | |
1331 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
1332 | ||
1333 | /* The '--wrap SYMBOL' option is causing a pain when the object file, | |
07d6d2b8 AM |
1334 | containing the definition of __wrap_SYMBOL, includes a direct |
1335 | call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference | |
1336 | the same symbol (which is __wrap_SYMBOL), but still exist as two | |
1337 | different symbols in 'sym_hashes', we don't want to adjust | |
1338 | the global symbol __wrap_SYMBOL twice. | |
1339 | This check is only relevant when symbols are being wrapped. */ | |
3d3d428f | 1340 | if (link_info->wrap_hash != NULL) |
07d6d2b8 AM |
1341 | { |
1342 | struct elf_link_hash_entry **cur_sym_hashes; | |
1343 | ||
1344 | /* Loop only over the symbols whom been already checked. */ | |
1345 | for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes; | |
1346 | cur_sym_hashes++) | |
1347 | /* If the current symbol is identical to 'sym_hash', that means | |
1348 | the symbol was already adjusted (or at least checked). */ | |
1349 | if (*cur_sym_hashes == sym_hash) | |
1350 | break; | |
1351 | ||
1352 | /* Don't adjust the symbol again. */ | |
1353 | if (cur_sym_hashes < sym_hashes) | |
1354 | continue; | |
1355 | } | |
3d3d428f NC |
1356 | |
1357 | if ((sym_hash->root.type == bfd_link_hash_defined | |
07d6d2b8 AM |
1358 | || sym_hash->root.type == bfd_link_hash_defweak) |
1359 | && sym_hash->root.u.def.section == sec | |
1360 | && sym_hash->root.u.def.value > addr | |
1361 | && sym_hash->root.u.def.value < toaddr) | |
1362 | sym_hash->root.u.def.value -= count; | |
3d3d428f NC |
1363 | } |
1364 | ||
1365 | return TRUE; | |
1366 | } | |
1367 | ||
1368 | /* Relocate a CR16 ELF section. */ | |
1369 | ||
1370 | static bfd_boolean | |
1371 | elf32_cr16_relocate_section (bfd *output_bfd, struct bfd_link_info *info, | |
07d6d2b8 AM |
1372 | bfd *input_bfd, asection *input_section, |
1373 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
1374 | Elf_Internal_Sym *local_syms, | |
1375 | asection **local_sections) | |
3d3d428f NC |
1376 | { |
1377 | Elf_Internal_Shdr *symtab_hdr; | |
1378 | struct elf_link_hash_entry **sym_hashes; | |
1379 | Elf_Internal_Rela *rel, *relend; | |
1380 | ||
3d3d428f NC |
1381 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
1382 | sym_hashes = elf_sym_hashes (input_bfd); | |
1383 | ||
1384 | rel = relocs; | |
1385 | relend = relocs + input_section->reloc_count; | |
1386 | for (; rel < relend; rel++) | |
1387 | { | |
1388 | int r_type; | |
1389 | reloc_howto_type *howto; | |
1390 | unsigned long r_symndx; | |
1391 | Elf_Internal_Sym *sym; | |
1392 | asection *sec; | |
1393 | struct elf_link_hash_entry *h; | |
1394 | bfd_vma relocation; | |
1395 | bfd_reloc_status_type r; | |
1396 | ||
1397 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1398 | r_type = ELF32_R_TYPE (rel->r_info); | |
1399 | howto = cr16_elf_howto_table + (r_type); | |
1400 | ||
1401 | h = NULL; | |
1402 | sym = NULL; | |
1403 | sec = NULL; | |
1404 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
1405 | { |
1406 | sym = local_syms + r_symndx; | |
1407 | sec = local_sections[r_symndx]; | |
1408 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1409 | } | |
3d3d428f | 1410 | else |
07d6d2b8 AM |
1411 | { |
1412 | bfd_boolean unresolved_reloc, warned, ignored; | |
3d3d428f | 1413 | |
07d6d2b8 AM |
1414 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1415 | r_symndx, symtab_hdr, sym_hashes, | |
1416 | h, sec, relocation, | |
1417 | unresolved_reloc, warned, ignored); | |
1418 | } | |
3d3d428f | 1419 | |
dbaa2011 | 1420 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 1421 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 1422 | rel, 1, relend, howto, 0, contents); |
1004c3e1 | 1423 | |
0e1862bb | 1424 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 1425 | continue; |
1004c3e1 | 1426 | |
3d3d428f | 1427 | r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd, |
07d6d2b8 AM |
1428 | input_section, |
1429 | contents, rel->r_offset, | |
1430 | relocation, rel->r_addend, | |
1431 | (struct elf_link_hash_entry *) h, | |
1432 | r_symndx, | |
1433 | info, sec, h == NULL); | |
3d3d428f NC |
1434 | |
1435 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1436 | { |
1437 | const char *name; | |
1438 | const char *msg = NULL; | |
1439 | ||
1440 | if (h != NULL) | |
1441 | name = h->root.root.string; | |
1442 | else | |
1443 | { | |
1444 | name = (bfd_elf_string_from_elf_section | |
1445 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1446 | if (name == NULL || *name == '\0') | |
fd361982 | 1447 | name = bfd_section_name (sec); |
07d6d2b8 AM |
1448 | } |
1449 | ||
1450 | switch (r) | |
1451 | { | |
1452 | case bfd_reloc_overflow: | |
1a72702b AM |
1453 | (*info->callbacks->reloc_overflow) |
1454 | (info, (h ? &h->root : NULL), name, howto->name, | |
1455 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
07d6d2b8 | 1456 | break; |
3d3d428f | 1457 | |
07d6d2b8 | 1458 | case bfd_reloc_undefined: |
1a72702b AM |
1459 | (*info->callbacks->undefined_symbol) |
1460 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
07d6d2b8 | 1461 | break; |
3d3d428f | 1462 | |
07d6d2b8 AM |
1463 | case bfd_reloc_outofrange: |
1464 | msg = _("internal error: out of range error"); | |
1465 | goto common_error; | |
3d3d428f | 1466 | |
07d6d2b8 AM |
1467 | case bfd_reloc_notsupported: |
1468 | msg = _("internal error: unsupported relocation error"); | |
1469 | goto common_error; | |
3d3d428f | 1470 | |
07d6d2b8 AM |
1471 | case bfd_reloc_dangerous: |
1472 | msg = _("internal error: dangerous error"); | |
1473 | goto common_error; | |
3d3d428f | 1474 | |
07d6d2b8 AM |
1475 | default: |
1476 | msg = _("internal error: unknown error"); | |
1477 | /* Fall through. */ | |
3d3d428f | 1478 | |
07d6d2b8 | 1479 | common_error: |
1a72702b AM |
1480 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1481 | input_section, rel->r_offset); | |
07d6d2b8 AM |
1482 | break; |
1483 | } | |
1484 | } | |
3d3d428f NC |
1485 | } |
1486 | ||
1487 | return TRUE; | |
1488 | } | |
1489 | ||
1490 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1491 | which uses elf32_cr16_relocate_section. */ | |
1492 | ||
1493 | static bfd_byte * | |
1494 | elf32_cr16_get_relocated_section_contents (bfd *output_bfd, | |
07d6d2b8 AM |
1495 | struct bfd_link_info *link_info, |
1496 | struct bfd_link_order *link_order, | |
1497 | bfd_byte *data, | |
1498 | bfd_boolean relocatable, | |
1499 | asymbol **symbols) | |
3d3d428f NC |
1500 | { |
1501 | Elf_Internal_Shdr *symtab_hdr; | |
1502 | asection *input_section = link_order->u.indirect.section; | |
1503 | bfd *input_bfd = input_section->owner; | |
1504 | asection **sections = NULL; | |
1505 | Elf_Internal_Rela *internal_relocs = NULL; | |
1506 | Elf_Internal_Sym *isymbuf = NULL; | |
1507 | ||
1508 | /* We only need to handle the case of relaxing, or of having a | |
1509 | particular set of section contents, specially. */ | |
1510 | if (relocatable | |
1511 | || elf_section_data (input_section)->this_hdr.contents == NULL) | |
1512 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
07d6d2b8 AM |
1513 | link_order, data, |
1514 | relocatable, | |
1515 | symbols); | |
3d3d428f NC |
1516 | |
1517 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1518 | ||
1519 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
07d6d2b8 | 1520 | (size_t) input_section->size); |
3d3d428f NC |
1521 | |
1522 | if ((input_section->flags & SEC_RELOC) != 0 | |
1523 | && input_section->reloc_count > 0) | |
1524 | { | |
1525 | Elf_Internal_Sym *isym; | |
1526 | Elf_Internal_Sym *isymend; | |
1527 | asection **secpp; | |
1528 | bfd_size_type amt; | |
1529 | ||
1530 | internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section, | |
07d6d2b8 | 1531 | NULL, NULL, FALSE); |
3d3d428f | 1532 | if (internal_relocs == NULL) |
07d6d2b8 | 1533 | goto error_return; |
3d3d428f NC |
1534 | |
1535 | if (symtab_hdr->sh_info != 0) | |
07d6d2b8 AM |
1536 | { |
1537 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1538 | if (isymbuf == NULL) | |
1539 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1540 | symtab_hdr->sh_info, 0, | |
1541 | NULL, NULL, NULL); | |
1542 | if (isymbuf == NULL) | |
1543 | goto error_return; | |
1544 | } | |
3d3d428f NC |
1545 | |
1546 | amt = symtab_hdr->sh_info; | |
1547 | amt *= sizeof (asection *); | |
1548 | sections = bfd_malloc (amt); | |
1549 | if (sections == NULL && amt != 0) | |
07d6d2b8 | 1550 | goto error_return; |
3d3d428f NC |
1551 | |
1552 | isymend = isymbuf + symtab_hdr->sh_info; | |
1553 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
07d6d2b8 AM |
1554 | { |
1555 | asection *isec; | |
3d3d428f | 1556 | |
07d6d2b8 AM |
1557 | if (isym->st_shndx == SHN_UNDEF) |
1558 | isec = bfd_und_section_ptr; | |
1559 | else if (isym->st_shndx == SHN_ABS) | |
1560 | isec = bfd_abs_section_ptr; | |
1561 | else if (isym->st_shndx == SHN_COMMON) | |
1562 | isec = bfd_com_section_ptr; | |
1563 | else | |
1564 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); | |
3d3d428f | 1565 | |
07d6d2b8 AM |
1566 | *secpp = isec; |
1567 | } | |
3d3d428f NC |
1568 | |
1569 | if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd, | |
07d6d2b8 AM |
1570 | input_section, data, internal_relocs, |
1571 | isymbuf, sections)) | |
1572 | goto error_return; | |
3d3d428f | 1573 | |
c9594989 AM |
1574 | free (sections); |
1575 | if (symtab_hdr->contents != (unsigned char *) isymbuf) | |
07d6d2b8 | 1576 | free (isymbuf); |
3d3d428f | 1577 | if (elf_section_data (input_section)->relocs != internal_relocs) |
07d6d2b8 | 1578 | free (internal_relocs); |
3d3d428f NC |
1579 | } |
1580 | ||
1581 | return data; | |
1582 | ||
1583 | error_return: | |
c9594989 AM |
1584 | free (sections); |
1585 | if (symtab_hdr->contents != (unsigned char *) isymbuf) | |
3d3d428f | 1586 | free (isymbuf); |
c9594989 | 1587 | if (elf_section_data (input_section)->relocs != internal_relocs) |
3d3d428f NC |
1588 | free (internal_relocs); |
1589 | return NULL; | |
1590 | } | |
1591 | ||
99706f30 SR |
1592 | /* Assorted hash table functions. */ |
1593 | ||
1594 | /* Initialize an entry in the link hash table. */ | |
1595 | ||
1596 | /* Create an entry in an CR16 ELF linker hash table. */ | |
1597 | ||
1598 | static struct bfd_hash_entry * | |
1599 | elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry, | |
07d6d2b8 AM |
1600 | struct bfd_hash_table *table, |
1601 | const char *string) | |
99706f30 SR |
1602 | { |
1603 | struct elf32_cr16_link_hash_entry *ret = | |
1604 | (struct elf32_cr16_link_hash_entry *) entry; | |
1605 | ||
1606 | /* Allocate the structure if it has not already been allocated by a | |
1607 | subclass. */ | |
1608 | if (ret == (struct elf32_cr16_link_hash_entry *) NULL) | |
1609 | ret = ((struct elf32_cr16_link_hash_entry *) | |
07d6d2b8 AM |
1610 | bfd_hash_allocate (table, |
1611 | sizeof (struct elf32_cr16_link_hash_entry))); | |
99706f30 SR |
1612 | if (ret == (struct elf32_cr16_link_hash_entry *) NULL) |
1613 | return (struct bfd_hash_entry *) ret; | |
1614 | ||
1615 | /* Call the allocation method of the superclass. */ | |
1616 | ret = ((struct elf32_cr16_link_hash_entry *) | |
07d6d2b8 AM |
1617 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
1618 | table, string)); | |
99706f30 SR |
1619 | if (ret != (struct elf32_cr16_link_hash_entry *) NULL) |
1620 | { | |
1621 | ret->direct_calls = 0; | |
1622 | ret->stack_size = 0; | |
1623 | ret->movm_args = 0; | |
1624 | ret->movm_stack_size = 0; | |
1625 | ret->flags = 0; | |
1626 | ret->value = 0; | |
1627 | } | |
1628 | ||
1629 | return (struct bfd_hash_entry *) ret; | |
1630 | } | |
1631 | ||
1632 | /* Create an cr16 ELF linker hash table. */ | |
1633 | ||
1634 | static struct bfd_link_hash_table * | |
1635 | elf32_cr16_link_hash_table_create (bfd *abfd) | |
1636 | { | |
4dfe6ac6 | 1637 | struct elf_link_hash_table *ret; |
986f0783 | 1638 | size_t amt = sizeof (struct elf_link_hash_table); |
99706f30 | 1639 | |
7bf52ea2 | 1640 | ret = (struct elf_link_hash_table *) bfd_zmalloc (amt); |
4dfe6ac6 | 1641 | if (ret == (struct elf_link_hash_table *) NULL) |
99706f30 SR |
1642 | return NULL; |
1643 | ||
4dfe6ac6 | 1644 | if (!_bfd_elf_link_hash_table_init (ret, abfd, |
07d6d2b8 AM |
1645 | elf32_cr16_link_hash_newfunc, |
1646 | sizeof (struct elf32_cr16_link_hash_entry), | |
4dfe6ac6 | 1647 | GENERIC_ELF_DATA)) |
99706f30 SR |
1648 | { |
1649 | free (ret); | |
1650 | return NULL; | |
1651 | } | |
1652 | ||
4dfe6ac6 | 1653 | return &ret->root; |
99706f30 SR |
1654 | } |
1655 | ||
99706f30 SR |
1656 | static unsigned long |
1657 | elf_cr16_mach (flagword flags) | |
1658 | { | |
1659 | switch (flags) | |
1660 | { | |
1661 | case EM_CR16: | |
1662 | default: | |
1663 | return bfd_mach_cr16; | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | /* The final processing done just before writing out a CR16 ELF object | |
1668 | file. This gets the CR16 architecture right based on the machine | |
1669 | number. */ | |
1670 | ||
cc364be6 AM |
1671 | static bfd_boolean |
1672 | _bfd_cr16_elf_final_write_processing (bfd *abfd) | |
99706f30 SR |
1673 | { |
1674 | unsigned long val; | |
1675 | switch (bfd_get_mach (abfd)) | |
1676 | { | |
1677 | default: | |
1678 | case bfd_mach_cr16: | |
07d6d2b8 AM |
1679 | val = EM_CR16; |
1680 | break; | |
99706f30 | 1681 | } |
cc364be6 AM |
1682 | elf_elfheader (abfd)->e_flags |= val; |
1683 | return _bfd_elf_final_write_processing (abfd); | |
99706f30 SR |
1684 | } |
1685 | ||
1686 | ||
1687 | static bfd_boolean | |
1688 | _bfd_cr16_elf_object_p (bfd *abfd) | |
1689 | { | |
1690 | bfd_default_set_arch_mach (abfd, bfd_arch_cr16, | |
07d6d2b8 | 1691 | elf_cr16_mach (elf_elfheader (abfd)->e_flags)); |
99706f30 SR |
1692 | return TRUE; |
1693 | } | |
1694 | ||
1695 | /* Merge backend specific data from an object file to the output | |
1696 | object file when linking. */ | |
1697 | ||
1698 | static bfd_boolean | |
50e03d47 | 1699 | _bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
99706f30 | 1700 | { |
50e03d47 AM |
1701 | bfd *obfd = info->output_bfd; |
1702 | ||
99706f30 SR |
1703 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
1704 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1705 | return TRUE; | |
1706 | ||
1707 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1708 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
1709 | { | |
1710 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
07d6d2b8 AM |
1711 | bfd_get_mach (ibfd))) |
1712 | return FALSE; | |
99706f30 SR |
1713 | } |
1714 | ||
1715 | return TRUE; | |
1716 | } | |
1717 | ||
1718 | ||
3d3d428f NC |
1719 | /* This function handles relaxing for the CR16. |
1720 | ||
1721 | There's quite a few relaxing opportunites available on the CR16: | |
1722 | ||
07d6d2b8 AM |
1723 | * bcond:24 -> bcond:16 1 byte |
1724 | * bcond:16 -> bcond:8 1 byte | |
1725 | * arithmetic imm32 -> arithmetic imm20 12 bits | |
1726 | * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits | |
3d3d428f NC |
1727 | |
1728 | Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */ | |
1729 | ||
1730 | static bfd_boolean | |
1731 | elf32_cr16_relax_section (bfd *abfd, asection *sec, | |
07d6d2b8 | 1732 | struct bfd_link_info *link_info, bfd_boolean *again) |
3d3d428f NC |
1733 | { |
1734 | Elf_Internal_Shdr *symtab_hdr; | |
1735 | Elf_Internal_Rela *internal_relocs; | |
1736 | Elf_Internal_Rela *irel, *irelend; | |
1737 | bfd_byte *contents = NULL; | |
1738 | Elf_Internal_Sym *isymbuf = NULL; | |
1739 | ||
1740 | /* Assume nothing changes. */ | |
1741 | *again = FALSE; | |
1742 | ||
1743 | /* We don't have to do anything for a relocatable link, if | |
1744 | this section does not have relocs, or if this is not a | |
1745 | code section. */ | |
0e1862bb | 1746 | if (bfd_link_relocatable (link_info) |
3d3d428f NC |
1747 | || (sec->flags & SEC_RELOC) == 0 |
1748 | || sec->reloc_count == 0 | |
1749 | || (sec->flags & SEC_CODE) == 0) | |
1750 | return TRUE; | |
1751 | ||
1752 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1753 | ||
1754 | /* Get a copy of the native relocations. */ | |
1755 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
07d6d2b8 | 1756 | link_info->keep_memory); |
3d3d428f NC |
1757 | if (internal_relocs == NULL) |
1758 | goto error_return; | |
1759 | ||
1760 | /* Walk through them looking for relaxing opportunities. */ | |
1761 | irelend = internal_relocs + sec->reloc_count; | |
1762 | for (irel = internal_relocs; irel < irelend; irel++) | |
1763 | { | |
1764 | bfd_vma symval; | |
1765 | ||
1766 | /* If this isn't something that can be relaxed, then ignore | |
07d6d2b8 | 1767 | this reloc. */ |
3d3d428f | 1768 | if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16 |
07d6d2b8 AM |
1769 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24 |
1770 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32 | |
1771 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20 | |
1772 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16) | |
1773 | continue; | |
3d3d428f NC |
1774 | |
1775 | /* Get the section contents if we haven't done so already. */ | |
1776 | if (contents == NULL) | |
07d6d2b8 AM |
1777 | { |
1778 | /* Get cached copy if it exists. */ | |
1779 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1780 | contents = elf_section_data (sec)->this_hdr.contents; | |
1781 | /* Go get them off disk. */ | |
1782 | else if (!bfd_malloc_and_get_section (abfd, sec, &contents)) | |
1783 | goto error_return; | |
1784 | } | |
3d3d428f NC |
1785 | |
1786 | /* Read this BFD's local symbols if we haven't done so already. */ | |
1787 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) | |
07d6d2b8 AM |
1788 | { |
1789 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1790 | if (isymbuf == NULL) | |
1791 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1792 | symtab_hdr->sh_info, 0, | |
1793 | NULL, NULL, NULL); | |
1794 | if (isymbuf == NULL) | |
1795 | goto error_return; | |
1796 | } | |
3d3d428f NC |
1797 | |
1798 | /* Get the value of the symbol referred to by the reloc. */ | |
1799 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
07d6d2b8 AM |
1800 | { |
1801 | /* A local symbol. */ | |
1802 | Elf_Internal_Sym *isym; | |
1803 | asection *sym_sec; | |
1804 | ||
1805 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
1806 | if (isym->st_shndx == SHN_UNDEF) | |
1807 | sym_sec = bfd_und_section_ptr; | |
1808 | else if (isym->st_shndx == SHN_ABS) | |
1809 | sym_sec = bfd_abs_section_ptr; | |
1810 | else if (isym->st_shndx == SHN_COMMON) | |
1811 | sym_sec = bfd_com_section_ptr; | |
1812 | else | |
1813 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1814 | symval = (isym->st_value | |
1815 | + sym_sec->output_section->vma | |
1816 | + sym_sec->output_offset); | |
1817 | } | |
3d3d428f | 1818 | else |
07d6d2b8 AM |
1819 | { |
1820 | unsigned long indx; | |
1821 | struct elf_link_hash_entry *h; | |
1822 | ||
1823 | /* An external symbol. */ | |
1824 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1825 | h = elf_sym_hashes (abfd)[indx]; | |
1826 | BFD_ASSERT (h != NULL); | |
1827 | ||
1828 | if (h->root.type != bfd_link_hash_defined | |
1829 | && h->root.type != bfd_link_hash_defweak) | |
1830 | /* This appears to be a reference to an undefined | |
1831 | symbol. Just ignore it--it will be caught by the | |
1832 | regular reloc processing. */ | |
1833 | continue; | |
1834 | ||
1835 | symval = (h->root.u.def.value | |
1836 | + h->root.u.def.section->output_section->vma | |
1837 | + h->root.u.def.section->output_offset); | |
1838 | } | |
3d3d428f NC |
1839 | |
1840 | /* For simplicity of coding, we are going to modify the section | |
07d6d2b8 AM |
1841 | contents, the section relocs, and the BFD symbol table. We |
1842 | must tell the rest of the code not to free up this | |
1843 | information. It would be possible to instead create a table | |
1844 | of changes which have to be made, as is done in coff-mips.c; | |
1845 | that would be more work, but would require less memory when | |
1846 | the linker is run. */ | |
3d3d428f NC |
1847 | |
1848 | /* Try to turn a 24 branch/call into a 16bit relative | |
07d6d2b8 | 1849 | branch/call. */ |
3d3d428f | 1850 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24) |
07d6d2b8 AM |
1851 | { |
1852 | bfd_vma value = symval; | |
1853 | ||
1854 | /* Deal with pc-relative gunk. */ | |
1855 | value -= (sec->output_section->vma + sec->output_offset); | |
1856 | value -= irel->r_offset; | |
1857 | value += irel->r_addend; | |
1858 | ||
1859 | /* See if the value will fit in 16 bits, note the high value is | |
1860 | 0xfffe + 2 as the target will be two bytes closer if we are | |
1861 | able to relax. */ | |
1862 | if ((long) value < 0x10000 && (long) value > -0x10002) | |
1863 | { | |
1864 | unsigned int code; | |
1865 | ||
1866 | /* Get the opcode. */ | |
1867 | code = (unsigned int) bfd_get_32 (abfd, contents + irel->r_offset); | |
1868 | ||
1869 | /* Verify it's a 'bcond' and fix the opcode. */ | |
1870 | if ((code & 0xffff) == 0x0010) | |
1871 | bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), contents + irel->r_offset); | |
1872 | else | |
1873 | continue; | |
1874 | ||
1875 | /* Note that we've changed the relocs, section contents, etc. */ | |
1876 | elf_section_data (sec)->relocs = internal_relocs; | |
1877 | elf_section_data (sec)->this_hdr.contents = contents; | |
1878 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1879 | ||
1880 | /* Fix the relocation's type. */ | |
1881 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1882 | R_CR16_DISP16); | |
1883 | ||
1884 | /* Delete two bytes of data. */ | |
1885 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
1886 | irel->r_offset + 2, 2)) | |
1887 | goto error_return; | |
1888 | ||
1889 | /* That will change things, so, we should relax again. | |
1890 | Note that this is not required, and it may be slow. */ | |
1891 | *again = TRUE; | |
1892 | } | |
1893 | } | |
3d3d428f | 1894 | |
99706f30 | 1895 | /* Try to turn a 16bit pc-relative branch into an |
07d6d2b8 | 1896 | 8bit pc-relative branch. */ |
3d3d428f | 1897 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16) |
07d6d2b8 AM |
1898 | { |
1899 | bfd_vma value = symval; | |
1900 | ||
1901 | /* Deal with pc-relative gunk. */ | |
1902 | value -= (sec->output_section->vma + sec->output_offset); | |
1903 | value -= irel->r_offset; | |
1904 | value += irel->r_addend; | |
1905 | ||
1906 | /* See if the value will fit in 8 bits, note the high value is | |
1907 | 0xfc + 2 as the target will be two bytes closer if we are | |
1908 | able to relax. */ | |
1909 | /*if ((long) value < 0x1fa && (long) value > -0x100) REVISIT:range */ | |
1910 | if ((long) value < 0xfa && (long) value > -0x100) | |
1911 | { | |
1912 | unsigned short code; | |
1913 | ||
1914 | /* Get the opcode. */ | |
1915 | code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset); | |
1916 | ||
1917 | /* Verify it's a 'bcond' and fix the opcode. */ | |
1918 | if ((code & 0xff0f) == 0x1800) | |
1919 | bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset); | |
1920 | else | |
1921 | continue; | |
1922 | ||
1923 | /* Note that we've changed the relocs, section contents, etc. */ | |
1924 | elf_section_data (sec)->relocs = internal_relocs; | |
1925 | elf_section_data (sec)->this_hdr.contents = contents; | |
1926 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1927 | ||
1928 | /* Fix the relocation's type. */ | |
1929 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1930 | R_CR16_DISP8); | |
1931 | ||
1932 | /* Delete two bytes of data. */ | |
1933 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
1934 | irel->r_offset + 2, 2)) | |
1935 | goto error_return; | |
1936 | ||
1937 | /* That will change things, so, we should relax again. | |
1938 | Note that this is not required, and it may be slow. */ | |
1939 | *again = TRUE; | |
1940 | } | |
1941 | } | |
3d3d428f | 1942 | |
99706f30 | 1943 | /* Try to turn a 32-bit IMM address into a 20/16-bit IMM address */ |
3d3d428f | 1944 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32) |
07d6d2b8 AM |
1945 | { |
1946 | bfd_vma value = symval; | |
1947 | unsigned short is_add_mov = 0; | |
1948 | bfd_vma value1 = 0; | |
1949 | ||
1950 | /* Get the existing value from the mcode */ | |
1951 | value1 = ((bfd_get_32 (abfd, contents + irel->r_offset + 2) >> 16) | |
1952 | |(((bfd_get_32 (abfd, contents + irel->r_offset + 2) & 0xffff) << 16))); | |
1953 | ||
1954 | /* See if the value will fit in 20 bits. */ | |
1955 | if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 0) | |
1956 | { | |
1957 | unsigned short code; | |
1958 | ||
1959 | /* Get the opcode. */ | |
1960 | code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset); | |
1961 | ||
1962 | /* Verify it's a 'arithmetic ADDD or MOVD instruction'. | |
1963 | For ADDD and MOVD only, convert to IMM32 -> IMM20. */ | |
1964 | ||
1965 | if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020)) | |
1966 | is_add_mov = 1; | |
1967 | ||
1968 | if (is_add_mov) | |
1969 | { | |
1970 | /* Note that we've changed the relocs, section contents, | |
1971 | etc. */ | |
1972 | elf_section_data (sec)->relocs = internal_relocs; | |
1973 | elf_section_data (sec)->this_hdr.contents = contents; | |
1974 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1975 | ||
1976 | /* Fix the opcode. */ | |
1977 | if ((code & 0xfff0) == 0x0070) /* For movd. */ | |
1978 | bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1); | |
1979 | else /* code == 0x0020 for addd. */ | |
1980 | bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1); | |
1981 | ||
1982 | bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset); | |
1983 | ||
1984 | /* If existing value is nagavive adjust approriately | |
1985 | place the 16-20bits (ie 4 bit) in new opcode, | |
1986 | as the 0xffffxxxx, the higher 2 byte values removed. */ | |
1987 | if (value1 & 0x80000000) | |
1988 | bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset); | |
1989 | else | |
1990 | bfd_put_8 (abfd, (((value1 >> 16)&0xf) | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset); | |
1991 | ||
1992 | /* Fix the relocation's type. */ | |
1993 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1994 | R_CR16_IMM20); | |
1995 | ||
1996 | /* Delete two bytes of data. */ | |
1997 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
1998 | irel->r_offset + 2, 2)) | |
1999 | goto error_return; | |
2000 | ||
2001 | /* That will change things, so, we should relax again. | |
2002 | Note that this is not required, and it may be slow. */ | |
2003 | *again = TRUE; | |
2004 | } | |
2005 | } | |
2006 | ||
2007 | /* See if the value will fit in 16 bits. */ | |
2008 | if ((!is_add_mov) | |
2009 | && ((long)(value + value1) < 0x7fff && (long)(value + value1) > 0)) | |
2010 | { | |
2011 | unsigned short code; | |
2012 | ||
2013 | /* Get the opcode. */ | |
2014 | code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset); | |
2015 | ||
2016 | /* Note that we've changed the relocs, section contents, etc. */ | |
2017 | elf_section_data (sec)->relocs = internal_relocs; | |
2018 | elf_section_data (sec)->this_hdr.contents = contents; | |
2019 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
2020 | ||
2021 | /* Fix the opcode. */ | |
2022 | if ((code & 0xf0) == 0x70) /* For movd. */ | |
2023 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1); | |
2024 | else if ((code & 0xf0) == 0x20) /* For addd. */ | |
2025 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1); | |
2026 | else if ((code & 0xf0) == 0x90) /* For cmpd. */ | |
2027 | bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1); | |
2028 | else | |
2029 | continue; | |
2030 | ||
2031 | bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset); | |
2032 | ||
2033 | /* If existing value is nagavive adjust approriately | |
2034 | place the 12-16bits (ie 4 bit) in new opcode, | |
2035 | as the 0xfffffxxx, the higher 2 byte values removed. */ | |
2036 | if (value1 & 0x80000000) | |
2037 | bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset); | |
2038 | else | |
2039 | bfd_put_16 (abfd, value1, contents + irel->r_offset + 2); | |
2040 | ||
2041 | ||
2042 | /* Fix the relocation's type. */ | |
2043 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2044 | R_CR16_IMM16); | |
2045 | ||
2046 | /* Delete two bytes of data. */ | |
2047 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
2048 | irel->r_offset + 2, 2)) | |
2049 | goto error_return; | |
2050 | ||
2051 | /* That will change things, so, we should relax again. | |
2052 | Note that this is not required, and it may be slow. */ | |
2053 | *again = TRUE; | |
2054 | } | |
2055 | } | |
7fac7ff4 | 2056 | |
99706f30 SR |
2057 | #if 0 |
2058 | /* Try to turn a 16bit immediate address into a 4bit | |
07d6d2b8 | 2059 | immediate address. */ |
68ffbac6 | 2060 | if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20) |
07d6d2b8 AM |
2061 | || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16)) |
2062 | { | |
2063 | bfd_vma value = symval; | |
2064 | bfd_vma value1 = 0; | |
2065 | ||
2066 | /* Get the existing value from the mcode */ | |
2067 | value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff)); | |
2068 | ||
2069 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20) | |
2070 | { | |
2071 | value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) & 0xf000) << 0x4); | |
2072 | } | |
2073 | ||
2074 | /* See if the value will fit in 4 bits. */ | |
2075 | if ((((long) (value + value1)) < 0xf) | |
2076 | && (((long) (value + value1)) > 0)) | |
2077 | { | |
2078 | unsigned short code; | |
2079 | ||
2080 | /* Get the opcode. */ | |
2081 | code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset); | |
2082 | ||
2083 | /* Note that we've changed the relocs, section contents, etc. */ | |
2084 | elf_section_data (sec)->relocs = internal_relocs; | |
2085 | elf_section_data (sec)->this_hdr.contents = contents; | |
2086 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
2087 | ||
2088 | /* Fix the opcode. */ | |
2089 | if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500)) | |
2090 | { | |
2091 | if ((code & 0x0f00) == 0x0400) /* For movd imm20. */ | |
2092 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset); | |
2093 | else /* For addd imm20. */ | |
2094 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset); | |
2095 | bfd_put_8 (abfd, (code & 0xf0) >> 4, contents + irel->r_offset + 1); | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */ | |
2100 | bfd_put_8 (abfd, 0x56, contents + irel->r_offset); | |
2101 | else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */ | |
2102 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset); | |
2103 | else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */ | |
2104 | bfd_put_8 (abfd, 0x58, contents + irel->r_offset); | |
2105 | else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */ | |
2106 | bfd_put_8 (abfd, 0x5A, contents + irel->r_offset); | |
2107 | else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */ | |
2108 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset); | |
2109 | else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */ | |
2110 | bfd_put_8 (abfd, 0x30, contents + irel->r_offset); | |
2111 | else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */ | |
2112 | bfd_put_8 (abfd, 0x2C, contents + irel->r_offset); | |
2113 | else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */ | |
2114 | bfd_put_8 (abfd, 0x32, contents + irel->r_offset); | |
2115 | else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */ | |
2116 | bfd_put_8 (abfd, 0x38, contents + irel->r_offset); | |
2117 | else if ((code & 0xfff0) == 0x3Cb0) /* For subcb imm16. */ | |
2118 | bfd_put_8 (abfd, 0x3C, contents + irel->r_offset); | |
2119 | else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */ | |
2120 | bfd_put_8 (abfd, 0x3F, contents + irel->r_offset); | |
2121 | else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */ | |
2122 | bfd_put_8 (abfd, 0x3A, contents + irel->r_offset); | |
2123 | else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */ | |
2124 | bfd_put_8 (abfd, 0x50, contents + irel->r_offset); | |
2125 | else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */ | |
2126 | bfd_put_8 (abfd, 0x52, contents + irel->r_offset); | |
2127 | else | |
2128 | continue; | |
2129 | ||
2130 | bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1); | |
2131 | } | |
2132 | ||
2133 | /* Fix the relocation's type. */ | |
2134 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2135 | R_CR16_IMM4); | |
2136 | ||
2137 | /* Delete two bytes of data. */ | |
2138 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
2139 | irel->r_offset + 2, 2)) | |
2140 | goto error_return; | |
2141 | ||
2142 | /* That will change things, so, we should relax again. | |
2143 | Note that this is not required, and it may be slow. */ | |
2144 | *again = TRUE; | |
2145 | } | |
2146 | } | |
99706f30 | 2147 | #endif |
3d3d428f NC |
2148 | } |
2149 | ||
2150 | if (isymbuf != NULL | |
2151 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
2152 | { | |
2153 | if (! link_info->keep_memory) | |
07d6d2b8 | 2154 | free (isymbuf); |
3d3d428f | 2155 | else |
99706f30 SR |
2156 | /* Cache the symbols for elf_link_input_bfd. */ |
2157 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
3d3d428f NC |
2158 | } |
2159 | ||
2160 | if (contents != NULL | |
2161 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2162 | { | |
2163 | if (! link_info->keep_memory) | |
07d6d2b8 | 2164 | free (contents); |
3d3d428f | 2165 | else |
99706f30 SR |
2166 | /* Cache the section contents for elf_link_input_bfd. */ |
2167 | elf_section_data (sec)->this_hdr.contents = contents; | |
68ffbac6 | 2168 | |
3d3d428f NC |
2169 | } |
2170 | ||
c9594989 | 2171 | if (elf_section_data (sec)->relocs != internal_relocs) |
3d3d428f NC |
2172 | free (internal_relocs); |
2173 | ||
2174 | return TRUE; | |
2175 | ||
2176 | error_return: | |
c9594989 | 2177 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
3d3d428f | 2178 | free (isymbuf); |
c9594989 | 2179 | if (elf_section_data (sec)->this_hdr.contents != contents) |
3d3d428f | 2180 | free (contents); |
c9594989 | 2181 | if (elf_section_data (sec)->relocs != internal_relocs) |
3d3d428f NC |
2182 | free (internal_relocs); |
2183 | ||
2184 | return FALSE; | |
2185 | } | |
2186 | ||
2187 | static asection * | |
2188 | elf32_cr16_gc_mark_hook (asection *sec, | |
07d6d2b8 AM |
2189 | struct bfd_link_info *info, |
2190 | Elf_Internal_Rela *rel, | |
2191 | struct elf_link_hash_entry *h, | |
2192 | Elf_Internal_Sym *sym) | |
3d3d428f | 2193 | { |
fb34365b | 2194 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
3d3d428f NC |
2195 | } |
2196 | ||
99706f30 SR |
2197 | /* Create dynamic sections when linking against a dynamic object. */ |
2198 | ||
2199 | static bfd_boolean | |
2200 | _bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
2201 | { | |
2202 | flagword flags; | |
2203 | asection * s; | |
2204 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); | |
ce558b89 | 2205 | struct elf_link_hash_table *htab = elf_hash_table (info); |
99706f30 SR |
2206 | int ptralign = 0; |
2207 | ||
2208 | switch (bed->s->arch_size) | |
2209 | { | |
2210 | case 16: | |
2211 | ptralign = 1; | |
2212 | break; | |
2213 | ||
2214 | case 32: | |
2215 | ptralign = 2; | |
2216 | break; | |
2217 | ||
2218 | default: | |
2219 | bfd_set_error (bfd_error_bad_value); | |
2220 | return FALSE; | |
2221 | } | |
2222 | ||
2223 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
2224 | .rel[a].bss sections. */ | |
2225 | ||
2226 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 2227 | | SEC_LINKER_CREATED); |
99706f30 | 2228 | |
3d4d4302 AM |
2229 | s = bfd_make_section_anyway_with_flags (abfd, |
2230 | (bed->default_use_rela_p | |
2231 | ? ".rela.plt" : ".rel.plt"), | |
2232 | flags | SEC_READONLY); | |
ce558b89 | 2233 | htab->srelplt = s; |
99706f30 | 2234 | if (s == NULL |
fd361982 | 2235 | || !bfd_set_section_alignment (s, ptralign)) |
99706f30 SR |
2236 | return FALSE; |
2237 | ||
2238 | if (! _bfd_cr16_elf_create_got_section (abfd, info)) | |
2239 | return FALSE; | |
2240 | ||
99706f30 SR |
2241 | if (bed->want_dynbss) |
2242 | { | |
2243 | /* The .dynbss section is a place to put symbols which are defined | |
07d6d2b8 AM |
2244 | by dynamic objects, are referenced by regular objects, and are |
2245 | not functions. We must allocate space for them in the process | |
2246 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2247 | initialize them at run time. The linker script puts the .dynbss | |
2248 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2249 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2250 | SEC_ALLOC | SEC_LINKER_CREATED); | |
99706f30 | 2251 | if (s == NULL) |
07d6d2b8 | 2252 | return FALSE; |
99706f30 SR |
2253 | |
2254 | /* The .rel[a].bss section holds copy relocs. This section is not | |
07d6d2b8 AM |
2255 | normally needed. We need to create it here, though, so that the |
2256 | linker will map it to an output section. We can't just create it | |
2257 | only if we need it, because we will not know whether we need it | |
2258 | until we have seen all the input files, and the first time the | |
2259 | main linker code calls BFD after examining all the input files | |
2260 | (size_dynamic_sections) the input sections have already been | |
2261 | mapped to the output sections. If the section turns out not to | |
2262 | be needed, we can discard it later. We will never need this | |
2263 | section when generating a shared object, since they do not use | |
2264 | copy relocs. */ | |
0e1862bb | 2265 | if (! bfd_link_executable (info)) |
07d6d2b8 AM |
2266 | { |
2267 | s = bfd_make_section_anyway_with_flags (abfd, | |
3d4d4302 AM |
2268 | (bed->default_use_rela_p |
2269 | ? ".rela.bss" : ".rel.bss"), | |
2270 | flags | SEC_READONLY); | |
07d6d2b8 | 2271 | if (s == NULL |
fd361982 | 2272 | || !bfd_set_section_alignment (s, ptralign)) |
07d6d2b8 AM |
2273 | return FALSE; |
2274 | } | |
99706f30 SR |
2275 | } |
2276 | ||
2277 | return TRUE; | |
2278 | } | |
2279 | \f | |
2280 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2281 | regular object. The current definition is in some section of the | |
2282 | dynamic object, but we're not including those sections. We have to | |
2283 | change the definition to something the rest of the link can | |
2284 | understand. */ | |
2285 | ||
2286 | static bfd_boolean | |
2287 | _bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info, | |
07d6d2b8 | 2288 | struct elf_link_hash_entry * h) |
99706f30 SR |
2289 | { |
2290 | bfd * dynobj; | |
2291 | asection * s; | |
2292 | ||
2293 | dynobj = elf_hash_table (info)->dynobj; | |
2294 | ||
2295 | /* Make sure we know what is going on here. */ | |
2296 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
2297 | && (h->needs_plt |
2298 | || h->is_weakalias | |
2299 | || (h->def_dynamic | |
2300 | && h->ref_regular | |
2301 | && !h->def_regular))); | |
99706f30 SR |
2302 | |
2303 | /* If this is a function, put it in the procedure linkage table. We | |
2304 | will fill in the contents of the procedure linkage table later, | |
2305 | when we know the address of the .got section. */ | |
2306 | if (h->type == STT_FUNC | |
2307 | || h->needs_plt) | |
2308 | { | |
0e1862bb | 2309 | if (! bfd_link_executable (info) |
07d6d2b8 AM |
2310 | && !h->def_dynamic |
2311 | && !h->ref_dynamic) | |
2312 | { | |
2313 | /* This case can occur if we saw a PLT reloc in an input | |
2314 | file, but the symbol was never referred to by a dynamic | |
2315 | object. In such a case, we don't actually need to build | |
2316 | a procedure linkage table, and we can just do a REL32 | |
2317 | reloc instead. */ | |
2318 | BFD_ASSERT (h->needs_plt); | |
2319 | return TRUE; | |
2320 | } | |
99706f30 SR |
2321 | |
2322 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2323 | if (h->dynindx == -1) | |
07d6d2b8 AM |
2324 | { |
2325 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2326 | return FALSE; | |
2327 | } | |
99706f30 SR |
2328 | |
2329 | /* We also need to make an entry in the .got.plt section, which | |
07d6d2b8 | 2330 | will be placed in the .got section by the linker script. */ |
99706f30 | 2331 | |
ce558b89 | 2332 | s = elf_hash_table (info)->sgotplt; |
99706f30 SR |
2333 | BFD_ASSERT (s != NULL); |
2334 | s->size += 4; | |
2335 | ||
2336 | /* We also need to make an entry in the .rela.plt section. */ | |
2337 | ||
ce558b89 | 2338 | s = elf_hash_table (info)->srelplt; |
99706f30 SR |
2339 | BFD_ASSERT (s != NULL); |
2340 | s->size += sizeof (Elf32_External_Rela); | |
2341 | ||
2342 | return TRUE; | |
2343 | } | |
2344 | ||
2345 | /* If this is a weak symbol, and there is a real definition, the | |
2346 | processor independent code will have arranged for us to see the | |
2347 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2348 | if (h->is_weakalias) |
99706f30 | 2349 | { |
60d67dc8 AM |
2350 | struct elf_link_hash_entry *def = weakdef (h); |
2351 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2352 | h->root.u.def.section = def->root.u.def.section; | |
2353 | h->root.u.def.value = def->root.u.def.value; | |
99706f30 SR |
2354 | return TRUE; |
2355 | } | |
2356 | ||
2357 | /* This is a reference to a symbol defined by a dynamic object which | |
2358 | is not a function. */ | |
2359 | ||
2360 | /* If we are creating a shared library, we must presume that the | |
2361 | only references to the symbol are via the global offset table. | |
2362 | For such cases we need not do anything here; the relocations will | |
2363 | be handled correctly by relocate_section. */ | |
0e1862bb | 2364 | if (bfd_link_executable (info)) |
99706f30 SR |
2365 | return TRUE; |
2366 | ||
2367 | /* If there are no references to this symbol that do not use the | |
2368 | GOT, we don't need to generate a copy reloc. */ | |
2369 | if (!h->non_got_ref) | |
2370 | return TRUE; | |
2371 | ||
99706f30 SR |
2372 | /* We must allocate the symbol in our .dynbss section, which will |
2373 | become part of the .bss section of the executable. There will be | |
2374 | an entry for this symbol in the .dynsym section. The dynamic | |
2375 | object will contain position independent code, so all references | |
2376 | from the dynamic object to this symbol will go through the global | |
2377 | offset table. The dynamic linker will use the .dynsym entry to | |
2378 | determine the address it must put in the global offset table, so | |
2379 | both the dynamic object and the regular object will refer to the | |
2380 | same memory location for the variable. */ | |
2381 | ||
3d4d4302 | 2382 | s = bfd_get_linker_section (dynobj, ".dynbss"); |
99706f30 SR |
2383 | BFD_ASSERT (s != NULL); |
2384 | ||
2385 | /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to | |
2386 | copy the initial value out of the dynamic object and into the | |
2387 | runtime process image. We need to remember the offset into the | |
2388 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 2389 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
99706f30 SR |
2390 | { |
2391 | asection * srel; | |
2392 | ||
3d4d4302 | 2393 | srel = bfd_get_linker_section (dynobj, ".rela.bss"); |
99706f30 SR |
2394 | BFD_ASSERT (srel != NULL); |
2395 | srel->size += sizeof (Elf32_External_Rela); | |
2396 | h->needs_copy = 1; | |
2397 | } | |
2398 | ||
6cabe1ea | 2399 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
99706f30 SR |
2400 | } |
2401 | ||
2402 | /* Set the sizes of the dynamic sections. */ | |
2403 | ||
2404 | static bfd_boolean | |
2405 | _bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd, | |
07d6d2b8 | 2406 | struct bfd_link_info * info) |
99706f30 SR |
2407 | { |
2408 | bfd * dynobj; | |
2409 | asection * s; | |
2410 | bfd_boolean plt; | |
2411 | bfd_boolean relocs; | |
2412 | bfd_boolean reltext; | |
2413 | ||
2414 | dynobj = elf_hash_table (info)->dynobj; | |
2415 | BFD_ASSERT (dynobj != NULL); | |
2416 | ||
2417 | if (elf_hash_table (info)->dynamic_sections_created) | |
2418 | { | |
2419 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2420 | if (bfd_link_executable (info) && !info->nointerp) |
07d6d2b8 | 2421 | { |
99706f30 | 2422 | #if 0 |
07d6d2b8 AM |
2423 | s = bfd_get_linker_section (dynobj, ".interp"); |
2424 | BFD_ASSERT (s != NULL); | |
2425 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2426 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
99706f30 | 2427 | #endif |
07d6d2b8 | 2428 | } |
99706f30 SR |
2429 | } |
2430 | else | |
2431 | { | |
2432 | /* We may have created entries in the .rela.got section. | |
07d6d2b8 AM |
2433 | However, if we are not creating the dynamic sections, we will |
2434 | not actually use these entries. Reset the size of .rela.got, | |
2435 | which will cause it to get stripped from the output file | |
2436 | below. */ | |
ce558b89 | 2437 | s = elf_hash_table (info)->srelgot; |
99706f30 | 2438 | if (s != NULL) |
07d6d2b8 | 2439 | s->size = 0; |
99706f30 SR |
2440 | } |
2441 | ||
2442 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2443 | determined the sizes of the various dynamic sections. Allocate | |
2444 | memory for them. */ | |
2445 | plt = FALSE; | |
2446 | relocs = FALSE; | |
2447 | reltext = FALSE; | |
2448 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2449 | { | |
2450 | const char * name; | |
2451 | ||
2452 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2453 | continue; |
99706f30 SR |
2454 | |
2455 | /* It's OK to base decisions on the section name, because none | |
07d6d2b8 | 2456 | of the dynobj section names depend upon the input files. */ |
fd361982 | 2457 | name = bfd_section_name (s); |
99706f30 SR |
2458 | |
2459 | if (strcmp (name, ".plt") == 0) | |
07d6d2b8 AM |
2460 | { |
2461 | /* Remember whether there is a PLT. */ | |
2462 | plt = s->size != 0; | |
2463 | } | |
99706f30 | 2464 | else if (CONST_STRNEQ (name, ".rela")) |
07d6d2b8 AM |
2465 | { |
2466 | if (s->size != 0) | |
2467 | { | |
2468 | asection * target; | |
2469 | ||
2470 | /* Remember whether there are any reloc sections other | |
2471 | than .rela.plt. */ | |
2472 | if (strcmp (name, ".rela.plt") != 0) | |
2473 | { | |
2474 | const char * outname; | |
2475 | ||
2476 | relocs = TRUE; | |
2477 | ||
2478 | /* If this relocation section applies to a read only | |
2479 | section, then we probably need a DT_TEXTREL | |
2480 | entry. The entries in the .rela.plt section | |
2481 | really apply to the .got section, which we | |
2482 | created ourselves and so know is not readonly. */ | |
fd361982 | 2483 | outname = bfd_section_name (s->output_section); |
07d6d2b8 AM |
2484 | target = bfd_get_section_by_name (output_bfd, outname + 5); |
2485 | if (target != NULL | |
2486 | && (target->flags & SEC_READONLY) != 0 | |
2487 | && (target->flags & SEC_ALLOC) != 0) | |
2488 | reltext = TRUE; | |
2489 | } | |
2490 | ||
2491 | /* We use the reloc_count field as a counter if we need | |
2492 | to copy relocs into the output file. */ | |
2493 | s->reloc_count = 0; | |
2494 | } | |
2495 | } | |
99706f30 | 2496 | else if (! CONST_STRNEQ (name, ".got") |
07d6d2b8 AM |
2497 | && strcmp (name, ".dynbss") != 0) |
2498 | /* It's not one of our sections, so don't allocate space. */ | |
2499 | continue; | |
99706f30 SR |
2500 | |
2501 | if (s->size == 0) | |
07d6d2b8 AM |
2502 | { |
2503 | /* If we don't need this section, strip it from the | |
2504 | output file. This is mostly to handle .rela.bss and | |
2505 | .rela.plt. We must create both sections in | |
2506 | create_dynamic_sections, because they must be created | |
2507 | before the linker maps input sections to output | |
2508 | sections. The linker does that before | |
2509 | adjust_dynamic_symbol is called, and it is that | |
2510 | function which decides whether anything needs to go | |
2511 | into these sections. */ | |
2512 | s->flags |= SEC_EXCLUDE; | |
2513 | continue; | |
2514 | } | |
2515 | ||
2516 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
2517 | continue; | |
99706f30 SR |
2518 | |
2519 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2520 | here in case unused entries are not reclaimed before the |
2521 | section's contents are written out. This should not happen, | |
2522 | but this way if it does, we get a R_CR16_NONE reloc | |
2523 | instead of garbage. */ | |
99706f30 SR |
2524 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
2525 | if (s->contents == NULL) | |
07d6d2b8 | 2526 | return FALSE; |
99706f30 SR |
2527 | } |
2528 | ||
2529 | if (elf_hash_table (info)->dynamic_sections_created) | |
2530 | { | |
2531 | /* Add some entries to the .dynamic section. We fill in the | |
07d6d2b8 AM |
2532 | values later, in _bfd_cr16_elf_finish_dynamic_sections, |
2533 | but we must add the entries now so that we get the correct | |
2534 | size for the .dynamic section. The DT_DEBUG entry is filled | |
2535 | in by the dynamic linker and used by the debugger. */ | |
0e1862bb | 2536 | if (! bfd_link_executable (info)) |
07d6d2b8 AM |
2537 | { |
2538 | if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) | |
2539 | return FALSE; | |
2540 | } | |
99706f30 SR |
2541 | |
2542 | if (plt) | |
07d6d2b8 AM |
2543 | { |
2544 | if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) | |
2545 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
2546 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
2547 | || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) | |
2548 | return FALSE; | |
2549 | } | |
99706f30 SR |
2550 | |
2551 | if (relocs) | |
07d6d2b8 AM |
2552 | { |
2553 | if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) | |
2554 | || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) | |
2555 | || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, | |
2556 | sizeof (Elf32_External_Rela))) | |
2557 | return FALSE; | |
2558 | } | |
99706f30 SR |
2559 | |
2560 | if (reltext) | |
07d6d2b8 AM |
2561 | { |
2562 | if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
2563 | return FALSE; | |
2564 | } | |
99706f30 SR |
2565 | } |
2566 | ||
2567 | return TRUE; | |
2568 | } | |
2569 | ||
2570 | /* Finish up dynamic symbol handling. We set the contents of various | |
2571 | dynamic sections here. */ | |
2572 | ||
2573 | static bfd_boolean | |
2574 | _bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd, | |
07d6d2b8 AM |
2575 | struct bfd_link_info * info, |
2576 | struct elf_link_hash_entry * h, | |
2577 | Elf_Internal_Sym * sym) | |
99706f30 SR |
2578 | { |
2579 | bfd * dynobj; | |
2580 | ||
2581 | dynobj = elf_hash_table (info)->dynobj; | |
2582 | ||
2583 | if (h->got.offset != (bfd_vma) -1) | |
2584 | { | |
07d6d2b8 AM |
2585 | asection * sgot; |
2586 | asection * srel; | |
99706f30 SR |
2587 | Elf_Internal_Rela rel; |
2588 | ||
2589 | /* This symbol has an entry in the global offset table. Set it up. */ | |
2590 | ||
ce558b89 AM |
2591 | sgot = elf_hash_table (info)->sgot; |
2592 | srel = elf_hash_table (info)->srelgot; | |
99706f30 SR |
2593 | BFD_ASSERT (sgot != NULL && srel != NULL); |
2594 | ||
2595 | rel.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
2596 | + sgot->output_offset |
2597 | + (h->got.offset & ~1)); | |
99706f30 SR |
2598 | |
2599 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
2600 | locally, we just want to emit a RELATIVE reloc. Likewise if |
2601 | the symbol was forced to be local because of a version file. | |
2602 | The entry in the global offset table will already have been | |
2603 | initialized in the relocate_section function. */ | |
0e1862bb | 2604 | if (bfd_link_executable (info) |
07d6d2b8 AM |
2605 | && (info->symbolic || h->dynindx == -1) |
2606 | && h->def_regular) | |
2607 | { | |
2608 | rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20); | |
2609 | rel.r_addend = (h->root.u.def.value | |
2610 | + h->root.u.def.section->output_section->vma | |
2611 | + h->root.u.def.section->output_offset); | |
2612 | } | |
99706f30 | 2613 | else |
07d6d2b8 AM |
2614 | { |
2615 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
2616 | rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20); | |
2617 | rel.r_addend = 0; | |
2618 | } | |
99706f30 SR |
2619 | |
2620 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 AM |
2621 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents |
2622 | + srel->reloc_count)); | |
99706f30 SR |
2623 | ++ srel->reloc_count; |
2624 | } | |
2625 | ||
2626 | if (h->needs_copy) | |
2627 | { | |
07d6d2b8 | 2628 | asection * s; |
99706f30 SR |
2629 | Elf_Internal_Rela rel; |
2630 | ||
2631 | /* This symbol needs a copy reloc. Set it up. */ | |
2632 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
2633 | && (h->root.type == bfd_link_hash_defined |
2634 | || h->root.type == bfd_link_hash_defweak)); | |
99706f30 | 2635 | |
3d4d4302 | 2636 | s = bfd_get_linker_section (dynobj, ".rela.bss"); |
99706f30 SR |
2637 | BFD_ASSERT (s != NULL); |
2638 | ||
2639 | rel.r_offset = (h->root.u.def.value | |
07d6d2b8 AM |
2640 | + h->root.u.def.section->output_section->vma |
2641 | + h->root.u.def.section->output_offset); | |
99706f30 SR |
2642 | rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20); |
2643 | rel.r_addend = 0; | |
2644 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 AM |
2645 | (bfd_byte *) ((Elf32_External_Rela *) s->contents |
2646 | + s->reloc_count)); | |
99706f30 SR |
2647 | ++ s->reloc_count; |
2648 | } | |
2649 | ||
2650 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 2651 | if (h == elf_hash_table (info)->hdynamic |
99706f30 SR |
2652 | || h == elf_hash_table (info)->hgot) |
2653 | sym->st_shndx = SHN_ABS; | |
2654 | ||
2655 | return TRUE; | |
2656 | } | |
2657 | ||
2658 | /* Finish up the dynamic sections. */ | |
2659 | ||
2660 | static bfd_boolean | |
2661 | _bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd, | |
07d6d2b8 | 2662 | struct bfd_link_info * info) |
99706f30 SR |
2663 | { |
2664 | bfd * dynobj; | |
2665 | asection * sgot; | |
2666 | asection * sdyn; | |
2667 | ||
2668 | dynobj = elf_hash_table (info)->dynobj; | |
2669 | ||
ce558b89 | 2670 | sgot = elf_hash_table (info)->sgotplt; |
99706f30 | 2671 | BFD_ASSERT (sgot != NULL); |
3d4d4302 | 2672 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
99706f30 SR |
2673 | |
2674 | if (elf_hash_table (info)->dynamic_sections_created) | |
2675 | { | |
2676 | Elf32_External_Dyn * dyncon; | |
2677 | Elf32_External_Dyn * dynconend; | |
2678 | ||
2679 | BFD_ASSERT (sdyn != NULL); | |
2680 | ||
2681 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
2682 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
2683 | ||
2684 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
2685 | { |
2686 | Elf_Internal_Dyn dyn; | |
2687 | asection * s; | |
2688 | ||
2689 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2690 | ||
2691 | switch (dyn.d_tag) | |
2692 | { | |
2693 | default: | |
2694 | break; | |
2695 | ||
2696 | case DT_PLTGOT: | |
2697 | s = elf_hash_table (info)->sgotplt; | |
2698 | goto get_vma; | |
2699 | ||
2700 | case DT_JMPREL: | |
2701 | s = elf_hash_table (info)->srelplt; | |
2702 | get_vma: | |
2703 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
2704 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2705 | break; | |
2706 | ||
2707 | case DT_PLTRELSZ: | |
2708 | s = elf_hash_table (info)->srelplt; | |
2709 | dyn.d_un.d_val = s->size; | |
2710 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2711 | break; | |
2712 | } | |
2713 | } | |
99706f30 SR |
2714 | |
2715 | } | |
2716 | ||
2717 | /* Fill in the first three entries in the global offset table. */ | |
2718 | if (sgot->size > 0) | |
2719 | { | |
2720 | if (sdyn == NULL) | |
07d6d2b8 | 2721 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
99706f30 | 2722 | else |
07d6d2b8 AM |
2723 | bfd_put_32 (output_bfd, |
2724 | sdyn->output_section->vma + sdyn->output_offset, | |
2725 | sgot->contents); | |
99706f30 SR |
2726 | } |
2727 | ||
2728 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
2729 | ||
2730 | return TRUE; | |
2731 | } | |
2732 | ||
2733 | /* Given a .data.rel section and a .emreloc in-memory section, store | |
2734 | relocation information into the .emreloc section which can be | |
2735 | used at runtime to relocate the section. This is called by the | |
2736 | linker when the --embedded-relocs switch is used. This is called | |
2737 | after the add_symbols entry point has been called for all the | |
2738 | objects, and before the final_link entry point is called. */ | |
2739 | ||
2740 | bfd_boolean | |
2741 | bfd_cr16_elf32_create_embedded_relocs (bfd *abfd, | |
07d6d2b8 AM |
2742 | struct bfd_link_info *info, |
2743 | asection *datasec, | |
2744 | asection *relsec, | |
2745 | char **errmsg) | |
99706f30 SR |
2746 | { |
2747 | Elf_Internal_Shdr *symtab_hdr; | |
2748 | Elf_Internal_Sym *isymbuf = NULL; | |
2749 | Elf_Internal_Rela *internal_relocs = NULL; | |
2750 | Elf_Internal_Rela *irel, *irelend; | |
2751 | bfd_byte *p; | |
2752 | bfd_size_type amt; | |
2753 | ||
0e1862bb | 2754 | BFD_ASSERT (! bfd_link_relocatable (info)); |
99706f30 SR |
2755 | |
2756 | *errmsg = NULL; | |
2757 | ||
2758 | if (datasec->reloc_count == 0) | |
2759 | return TRUE; | |
2760 | ||
2761 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2762 | ||
2763 | /* Get a copy of the native relocations. */ | |
2764 | internal_relocs = (_bfd_elf_link_read_relocs | |
07d6d2b8 | 2765 | (abfd, datasec, NULL, NULL, info->keep_memory)); |
99706f30 SR |
2766 | if (internal_relocs == NULL) |
2767 | goto error_return; | |
2768 | ||
2769 | amt = (bfd_size_type) datasec->reloc_count * 8; | |
2770 | relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt); | |
2771 | if (relsec->contents == NULL) | |
2772 | goto error_return; | |
2773 | ||
2774 | p = relsec->contents; | |
2775 | ||
2776 | irelend = internal_relocs + datasec->reloc_count; | |
2777 | for (irel = internal_relocs; irel < irelend; irel++, p += 8) | |
2778 | { | |
2779 | asection *targetsec; | |
2780 | ||
2781 | /* We are going to write a four byte longword into the runtime | |
2782 | reloc section. The longword will be the address in the data | |
2783 | section which must be relocated. It is followed by the name | |
2784 | of the target section NUL-padded or truncated to 8 | |
2785 | characters. */ | |
2786 | ||
2787 | /* We can only relocate absolute longword relocs at run time. */ | |
2788 | if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a) | |
07d6d2b8 AM |
2789 | || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32))) |
2790 | { | |
0aa13fee | 2791 | *errmsg = _("unsupported relocation type"); |
07d6d2b8 AM |
2792 | bfd_set_error (bfd_error_bad_value); |
2793 | goto error_return; | |
2794 | } | |
99706f30 SR |
2795 | |
2796 | /* Get the target section referred to by the reloc. */ | |
2797 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
07d6d2b8 AM |
2798 | { |
2799 | /* A local symbol. */ | |
2800 | Elf_Internal_Sym *isym; | |
2801 | ||
2802 | /* Read this BFD's local symbols if we haven't done so already. */ | |
2803 | if (isymbuf == NULL) | |
2804 | { | |
2805 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
2806 | if (isymbuf == NULL) | |
2807 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2808 | symtab_hdr->sh_info, 0, | |
2809 | NULL, NULL, NULL); | |
2810 | if (isymbuf == NULL) | |
2811 | goto error_return; | |
2812 | } | |
2813 | ||
2814 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
2815 | targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2816 | } | |
99706f30 | 2817 | else |
07d6d2b8 AM |
2818 | { |
2819 | unsigned long indx; | |
2820 | struct elf_link_hash_entry *h; | |
2821 | ||
2822 | /* An external symbol. */ | |
2823 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2824 | h = elf_sym_hashes (abfd)[indx]; | |
2825 | BFD_ASSERT (h != NULL); | |
2826 | if (h->root.type == bfd_link_hash_defined | |
2827 | || h->root.type == bfd_link_hash_defweak) | |
2828 | targetsec = h->root.u.def.section; | |
2829 | else | |
2830 | targetsec = NULL; | |
2831 | } | |
99706f30 SR |
2832 | |
2833 | bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p); | |
2834 | memset (p + 4, 0, 4); | |
2835 | if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a) | |
07d6d2b8 AM |
2836 | && (targetsec != NULL) ) |
2837 | strncpy ((char *) p + 4, targetsec->output_section->name, 4); | |
99706f30 SR |
2838 | } |
2839 | ||
c9594989 | 2840 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
99706f30 | 2841 | free (isymbuf); |
c9594989 | 2842 | if (elf_section_data (datasec)->relocs != internal_relocs) |
99706f30 SR |
2843 | free (internal_relocs); |
2844 | return TRUE; | |
2845 | ||
dc1e8a47 | 2846 | error_return: |
c9594989 | 2847 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
99706f30 | 2848 | free (isymbuf); |
c9594989 | 2849 | if (elf_section_data (datasec)->relocs != internal_relocs) |
99706f30 SR |
2850 | free (internal_relocs); |
2851 | return FALSE; | |
2852 | } | |
2853 | ||
2854 | ||
2855 | /* Classify relocation types, such that combreloc can sort them | |
2856 | properly. */ | |
2857 | ||
2858 | static enum elf_reloc_type_class | |
7e612e98 AM |
2859 | _bfd_cr16_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2860 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2861 | const Elf_Internal_Rela *rela) | |
99706f30 SR |
2862 | { |
2863 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
2864 | { | |
2865 | case R_CR16_GOT_REGREL20: | |
2866 | case R_CR16_GOTC_REGREL20: | |
2867 | return reloc_class_relative; | |
2868 | default: | |
2869 | return reloc_class_normal; | |
2870 | } | |
2871 | } | |
2872 | ||
3d3d428f | 2873 | /* Definitions for setting CR16 target vector. */ |
07d6d2b8 AM |
2874 | #define TARGET_LITTLE_SYM cr16_elf32_vec |
2875 | #define TARGET_LITTLE_NAME "elf32-cr16" | |
2876 | #define ELF_ARCH bfd_arch_cr16 | |
2877 | #define ELF_MACHINE_CODE EM_CR16 | |
2878 | #define ELF_MACHINE_ALT1 EM_CR16_OLD | |
2879 | #define ELF_MAXPAGESIZE 0x1 | |
2880 | #define elf_symbol_leading_char '_' | |
2881 | ||
2882 | #define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup | |
2883 | #define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup | |
2884 | #define elf_info_to_howto elf_cr16_info_to_howto | |
f3185997 | 2885 | #define elf_info_to_howto_rel NULL |
07d6d2b8 AM |
2886 | #define elf_backend_relocate_section elf32_cr16_relocate_section |
2887 | #define bfd_elf32_bfd_relax_section elf32_cr16_relax_section | |
3d3d428f | 2888 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
07d6d2b8 AM |
2889 | elf32_cr16_get_relocated_section_contents |
2890 | #define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook | |
2891 | #define elf_backend_can_gc_sections 1 | |
2892 | #define elf_backend_rela_normal 1 | |
2893 | #define elf_backend_check_relocs cr16_elf_check_relocs | |
99706f30 SR |
2894 | /* So we can set bits in e_flags. */ |
2895 | #define elf_backend_final_write_processing \ | |
07d6d2b8 AM |
2896 | _bfd_cr16_elf_final_write_processing |
2897 | #define elf_backend_object_p _bfd_cr16_elf_object_p | |
99706f30 SR |
2898 | |
2899 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
07d6d2b8 | 2900 | _bfd_cr16_elf_merge_private_bfd_data |
99706f30 SR |
2901 | |
2902 | ||
2903 | #define bfd_elf32_bfd_link_hash_table_create \ | |
07d6d2b8 | 2904 | elf32_cr16_link_hash_table_create |
99706f30 SR |
2905 | |
2906 | #define elf_backend_create_dynamic_sections \ | |
07d6d2b8 | 2907 | _bfd_cr16_elf_create_dynamic_sections |
99706f30 | 2908 | #define elf_backend_adjust_dynamic_symbol \ |
07d6d2b8 | 2909 | _bfd_cr16_elf_adjust_dynamic_symbol |
99706f30 | 2910 | #define elf_backend_size_dynamic_sections \ |
07d6d2b8 | 2911 | _bfd_cr16_elf_size_dynamic_sections |
d00dd7dc | 2912 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
99706f30 | 2913 | #define elf_backend_finish_dynamic_symbol \ |
07d6d2b8 | 2914 | _bfd_cr16_elf_finish_dynamic_symbol |
99706f30 | 2915 | #define elf_backend_finish_dynamic_sections \ |
07d6d2b8 | 2916 | _bfd_cr16_elf_finish_dynamic_sections |
99706f30 SR |
2917 | |
2918 | #define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class | |
2919 | ||
2920 | ||
07d6d2b8 AM |
2921 | #define elf_backend_want_got_plt 1 |
2922 | #define elf_backend_plt_readonly 1 | |
2923 | #define elf_backend_want_plt_sym 0 | |
2924 | #define elf_backend_got_header_size 12 | |
64f52338 | 2925 | #define elf_backend_dtrel_excludes_plt 1 |
3d3d428f NC |
2926 | |
2927 | #include "elf32-target.h" |