Commit | Line | Data |
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3d3d428f | 1 | /* BFD back-end for National Semiconductor's CR16 ELF |
250d07de | 2 | Copyright (C) 2007-2021 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 */ | |
0a1b45a2 | 121 | false, /* pc_relative */ |
07d6d2b8 AM |
122 | 0, /* bitpos */ |
123 | complain_overflow_dont, /* complain_on_overflow */ | |
124 | bfd_elf_generic_reloc, /* special_function */ | |
125 | "R_CR16_NONE", /* name */ | |
0a1b45a2 | 126 | false, /* partial_inplace */ |
07d6d2b8 AM |
127 | 0, /* src_mask */ |
128 | 0, /* dst_mask */ | |
0a1b45a2 | 129 | false), /* pcrel_offset */ |
07d6d2b8 AM |
130 | |
131 | HOWTO (R_CR16_NUM8, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 0, /* size */ | |
134 | 8, /* bitsize */ | |
0a1b45a2 | 135 | false, /* pc_relative */ |
07d6d2b8 AM |
136 | 0, /* bitpos */ |
137 | complain_overflow_bitfield,/* complain_on_overflow */ | |
138 | bfd_elf_generic_reloc, /* special_function */ | |
139 | "R_CR16_NUM8", /* name */ | |
0a1b45a2 | 140 | false, /* partial_inplace */ |
07d6d2b8 AM |
141 | 0x0, /* src_mask */ |
142 | 0xff, /* dst_mask */ | |
0a1b45a2 | 143 | false), /* pcrel_offset */ |
07d6d2b8 AM |
144 | |
145 | HOWTO (R_CR16_NUM16, /* type */ | |
146 | 0, /* rightshift */ | |
147 | 1, /* size */ | |
148 | 16, /* bitsize */ | |
0a1b45a2 | 149 | false, /* pc_relative */ |
07d6d2b8 AM |
150 | 0, /* bitpos */ |
151 | complain_overflow_bitfield,/* complain_on_overflow */ | |
152 | bfd_elf_generic_reloc, /* special_function */ | |
153 | "R_CR16_NUM16", /* name */ | |
0a1b45a2 | 154 | false, /* partial_inplace */ |
07d6d2b8 AM |
155 | 0x0, /* src_mask */ |
156 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 157 | false), /* pcrel_offset */ |
07d6d2b8 AM |
158 | |
159 | HOWTO (R_CR16_NUM32, /* type */ | |
160 | 0, /* rightshift */ | |
161 | 2, /* size */ | |
162 | 32, /* bitsize */ | |
0a1b45a2 | 163 | false, /* pc_relative */ |
07d6d2b8 AM |
164 | 0, /* bitpos */ |
165 | complain_overflow_bitfield,/* complain_on_overflow */ | |
166 | bfd_elf_generic_reloc, /* special_function */ | |
167 | "R_CR16_NUM32", /* name */ | |
0a1b45a2 | 168 | false, /* partial_inplace */ |
07d6d2b8 AM |
169 | 0x0, /* src_mask */ |
170 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 171 | false), /* pcrel_offset */ |
07d6d2b8 AM |
172 | |
173 | HOWTO (R_CR16_NUM32a, /* type */ | |
174 | 1, /* rightshift */ | |
175 | 2, /* size */ | |
176 | 32, /* bitsize */ | |
0a1b45a2 | 177 | false, /* pc_relative */ |
07d6d2b8 AM |
178 | 0, /* bitpos */ |
179 | complain_overflow_bitfield,/* complain_on_overflow */ | |
180 | bfd_elf_generic_reloc, /* special_function */ | |
181 | "R_CR16_NUM32a", /* name */ | |
0a1b45a2 | 182 | false, /* partial_inplace */ |
07d6d2b8 AM |
183 | 0x0, /* src_mask */ |
184 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 185 | false), /* pcrel_offset */ |
07d6d2b8 AM |
186 | |
187 | HOWTO (R_CR16_REGREL4, /* type */ | |
188 | 0, /* rightshift */ | |
189 | 0, /* size */ | |
190 | 4, /* bitsize */ | |
0a1b45a2 | 191 | false, /* pc_relative */ |
07d6d2b8 AM |
192 | 0, /* bitpos */ |
193 | complain_overflow_bitfield,/* complain_on_overflow */ | |
194 | bfd_elf_generic_reloc, /* special_function */ | |
195 | "R_CR16_REGREL4", /* name */ | |
0a1b45a2 | 196 | false, /* partial_inplace */ |
07d6d2b8 AM |
197 | 0x0, /* src_mask */ |
198 | 0xf, /* dst_mask */ | |
0a1b45a2 | 199 | false), /* pcrel_offset */ |
07d6d2b8 AM |
200 | |
201 | HOWTO (R_CR16_REGREL4a, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 0, /* size */ | |
204 | 4, /* bitsize */ | |
0a1b45a2 | 205 | false, /* pc_relative */ |
07d6d2b8 AM |
206 | 0, /* bitpos */ |
207 | complain_overflow_bitfield,/* complain_on_overflow */ | |
208 | bfd_elf_generic_reloc, /* special_function */ | |
209 | "R_CR16_REGREL4a", /* name */ | |
0a1b45a2 | 210 | false, /* partial_inplace */ |
07d6d2b8 AM |
211 | 0x0, /* src_mask */ |
212 | 0xf, /* dst_mask */ | |
0a1b45a2 | 213 | false), /* pcrel_offset */ |
07d6d2b8 AM |
214 | |
215 | HOWTO (R_CR16_REGREL14, /* type */ | |
216 | 0, /* rightshift */ | |
217 | 1, /* size */ | |
218 | 14, /* bitsize */ | |
0a1b45a2 | 219 | false, /* pc_relative */ |
07d6d2b8 AM |
220 | 0, /* bitpos */ |
221 | complain_overflow_bitfield,/* complain_on_overflow */ | |
222 | bfd_elf_generic_reloc, /* special_function */ | |
223 | "R_CR16_REGREL14", /* name */ | |
0a1b45a2 | 224 | false, /* partial_inplace */ |
07d6d2b8 AM |
225 | 0x0, /* src_mask */ |
226 | 0x3fff, /* dst_mask */ | |
0a1b45a2 | 227 | false), /* pcrel_offset */ |
07d6d2b8 AM |
228 | |
229 | HOWTO (R_CR16_REGREL14a, /* type */ | |
230 | 0, /* rightshift */ | |
231 | 1, /* size */ | |
232 | 14, /* bitsize */ | |
0a1b45a2 | 233 | false, /* pc_relative */ |
07d6d2b8 AM |
234 | 0, /* bitpos */ |
235 | complain_overflow_bitfield,/* complain_on_overflow */ | |
236 | bfd_elf_generic_reloc, /* special_function */ | |
237 | "R_CR16_REGREL14a", /* name */ | |
0a1b45a2 | 238 | false, /* partial_inplace */ |
07d6d2b8 AM |
239 | 0x0, /* src_mask */ |
240 | 0x3fff, /* dst_mask */ | |
0a1b45a2 | 241 | false), /* pcrel_offset */ |
07d6d2b8 AM |
242 | |
243 | HOWTO (R_CR16_REGREL16, /* type */ | |
244 | 0, /* rightshift */ | |
245 | 1, /* size */ | |
246 | 16, /* bitsize */ | |
0a1b45a2 | 247 | false, /* pc_relative */ |
07d6d2b8 AM |
248 | 0, /* bitpos */ |
249 | complain_overflow_bitfield,/* complain_on_overflow */ | |
250 | bfd_elf_generic_reloc, /* special_function */ | |
251 | "R_CR16_REGREL16", /* name */ | |
0a1b45a2 | 252 | false, /* partial_inplace */ |
07d6d2b8 AM |
253 | 0x0, /* src_mask */ |
254 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 255 | false), /* pcrel_offset */ |
07d6d2b8 AM |
256 | |
257 | HOWTO (R_CR16_REGREL20, /* type */ | |
258 | 0, /* rightshift */ | |
259 | 2, /* size */ | |
260 | 20, /* bitsize */ | |
0a1b45a2 | 261 | false, /* pc_relative */ |
07d6d2b8 AM |
262 | 0, /* bitpos */ |
263 | complain_overflow_bitfield,/* complain_on_overflow */ | |
264 | bfd_elf_generic_reloc, /* special_function */ | |
265 | "R_CR16_REGREL20", /* name */ | |
0a1b45a2 | 266 | false, /* partial_inplace */ |
07d6d2b8 AM |
267 | 0x0, /* src_mask */ |
268 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 269 | false), /* pcrel_offset */ |
07d6d2b8 AM |
270 | |
271 | HOWTO (R_CR16_REGREL20a, /* type */ | |
272 | 0, /* rightshift */ | |
273 | 2, /* size */ | |
274 | 20, /* bitsize */ | |
0a1b45a2 | 275 | false, /* pc_relative */ |
07d6d2b8 AM |
276 | 0, /* bitpos */ |
277 | complain_overflow_bitfield,/* complain_on_overflow */ | |
278 | bfd_elf_generic_reloc, /* special_function */ | |
279 | "R_CR16_REGREL20a", /* name */ | |
0a1b45a2 | 280 | false, /* partial_inplace */ |
07d6d2b8 AM |
281 | 0x0, /* src_mask */ |
282 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 283 | false), /* pcrel_offset */ |
07d6d2b8 AM |
284 | |
285 | HOWTO (R_CR16_ABS20, /* type */ | |
286 | 0, /* rightshift */ | |
287 | 2, /* size */ | |
288 | 20, /* bitsize */ | |
0a1b45a2 | 289 | false, /* pc_relative */ |
07d6d2b8 AM |
290 | 0, /* bitpos */ |
291 | complain_overflow_bitfield,/* complain_on_overflow */ | |
292 | bfd_elf_generic_reloc, /* special_function */ | |
293 | "R_CR16_ABS20", /* name */ | |
0a1b45a2 | 294 | false, /* partial_inplace */ |
07d6d2b8 AM |
295 | 0x0, /* src_mask */ |
296 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 297 | false), /* pcrel_offset */ |
07d6d2b8 AM |
298 | |
299 | HOWTO (R_CR16_ABS24, /* type */ | |
300 | 0, /* rightshift */ | |
301 | 2, /* size */ | |
302 | 24, /* bitsize */ | |
0a1b45a2 | 303 | false, /* pc_relative */ |
07d6d2b8 AM |
304 | 0, /* bitpos */ |
305 | complain_overflow_bitfield,/* complain_on_overflow */ | |
306 | bfd_elf_generic_reloc, /* special_function */ | |
307 | "R_CR16_ABS24", /* name */ | |
0a1b45a2 | 308 | false, /* partial_inplace */ |
07d6d2b8 AM |
309 | 0x0, /* src_mask */ |
310 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 311 | false), /* pcrel_offset */ |
07d6d2b8 AM |
312 | |
313 | HOWTO (R_CR16_IMM4, /* type */ | |
314 | 0, /* rightshift */ | |
315 | 0, /* size */ | |
316 | 4, /* bitsize */ | |
0a1b45a2 | 317 | false, /* pc_relative */ |
07d6d2b8 AM |
318 | 0, /* bitpos */ |
319 | complain_overflow_bitfield,/* complain_on_overflow */ | |
320 | bfd_elf_generic_reloc, /* special_function */ | |
321 | "R_CR16_IMM4", /* name */ | |
0a1b45a2 | 322 | false, /* partial_inplace */ |
07d6d2b8 AM |
323 | 0x0, /* src_mask */ |
324 | 0xf, /* dst_mask */ | |
0a1b45a2 | 325 | false), /* pcrel_offset */ |
07d6d2b8 AM |
326 | |
327 | HOWTO (R_CR16_IMM8, /* type */ | |
328 | 0, /* rightshift */ | |
329 | 0, /* size */ | |
330 | 8, /* bitsize */ | |
0a1b45a2 | 331 | false, /* pc_relative */ |
07d6d2b8 AM |
332 | 0, /* bitpos */ |
333 | complain_overflow_bitfield,/* complain_on_overflow */ | |
334 | bfd_elf_generic_reloc, /* special_function */ | |
335 | "R_CR16_IMM8", /* name */ | |
0a1b45a2 | 336 | false, /* partial_inplace */ |
07d6d2b8 AM |
337 | 0x0, /* src_mask */ |
338 | 0xff, /* dst_mask */ | |
0a1b45a2 | 339 | false), /* pcrel_offset */ |
07d6d2b8 AM |
340 | |
341 | HOWTO (R_CR16_IMM16, /* type */ | |
342 | 0, /* rightshift */ | |
343 | 1, /* size */ | |
344 | 16, /* bitsize */ | |
0a1b45a2 | 345 | false, /* pc_relative */ |
07d6d2b8 AM |
346 | 0, /* bitpos */ |
347 | complain_overflow_bitfield,/* complain_on_overflow */ | |
348 | bfd_elf_generic_reloc, /* special_function */ | |
349 | "R_CR16_IMM16", /* name */ | |
0a1b45a2 | 350 | false, /* partial_inplace */ |
07d6d2b8 AM |
351 | 0x0, /* src_mask */ |
352 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 353 | false), /* pcrel_offset */ |
07d6d2b8 AM |
354 | |
355 | HOWTO (R_CR16_IMM20, /* type */ | |
356 | 0, /* rightshift */ | |
357 | 2, /* size */ | |
358 | 20, /* bitsize */ | |
0a1b45a2 | 359 | false, /* pc_relative */ |
07d6d2b8 AM |
360 | 0, /* bitpos */ |
361 | complain_overflow_bitfield,/* complain_on_overflow */ | |
362 | bfd_elf_generic_reloc, /* special_function */ | |
363 | "R_CR16_IMM20", /* name */ | |
0a1b45a2 | 364 | false, /* partial_inplace */ |
07d6d2b8 AM |
365 | 0x0, /* src_mask */ |
366 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 367 | false), /* pcrel_offset */ |
07d6d2b8 AM |
368 | |
369 | HOWTO (R_CR16_IMM24, /* type */ | |
370 | 0, /* rightshift */ | |
371 | 2, /* size */ | |
372 | 24, /* bitsize */ | |
0a1b45a2 | 373 | false, /* pc_relative */ |
07d6d2b8 AM |
374 | 0, /* bitpos */ |
375 | complain_overflow_bitfield,/* complain_on_overflow */ | |
376 | bfd_elf_generic_reloc, /* special_function */ | |
377 | "R_CR16_IMM24", /* name */ | |
0a1b45a2 | 378 | false, /* partial_inplace */ |
07d6d2b8 AM |
379 | 0x0, /* src_mask */ |
380 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 381 | false), /* pcrel_offset */ |
07d6d2b8 AM |
382 | |
383 | HOWTO (R_CR16_IMM32, /* type */ | |
384 | 0, /* rightshift */ | |
385 | 2, /* size */ | |
386 | 32, /* bitsize */ | |
0a1b45a2 | 387 | false, /* pc_relative */ |
07d6d2b8 AM |
388 | 0, /* bitpos */ |
389 | complain_overflow_bitfield,/* complain_on_overflow */ | |
390 | bfd_elf_generic_reloc, /* special_function */ | |
391 | "R_CR16_IMM32", /* name */ | |
0a1b45a2 | 392 | false, /* partial_inplace */ |
07d6d2b8 AM |
393 | 0x0, /* src_mask */ |
394 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 395 | false), /* pcrel_offset */ |
07d6d2b8 AM |
396 | |
397 | HOWTO (R_CR16_IMM32a, /* type */ | |
398 | 1, /* rightshift */ | |
399 | 2, /* size */ | |
400 | 32, /* bitsize */ | |
0a1b45a2 | 401 | false, /* pc_relative */ |
07d6d2b8 AM |
402 | 0, /* bitpos */ |
403 | complain_overflow_bitfield,/* complain_on_overflow */ | |
404 | bfd_elf_generic_reloc, /* special_function */ | |
405 | "R_CR16_IMM32a", /* name */ | |
0a1b45a2 | 406 | false, /* partial_inplace */ |
07d6d2b8 AM |
407 | 0x0, /* src_mask */ |
408 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 409 | false), /* pcrel_offset */ |
07d6d2b8 AM |
410 | |
411 | HOWTO (R_CR16_DISP4, /* type */ | |
412 | 1, /* rightshift */ | |
413 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
414 | 4, /* bitsize */ | |
0a1b45a2 | 415 | true, /* pc_relative */ |
07d6d2b8 AM |
416 | 0, /* bitpos */ |
417 | complain_overflow_unsigned, /* complain_on_overflow */ | |
418 | bfd_elf_generic_reloc, /* special_function */ | |
419 | "R_CR16_DISP4", /* name */ | |
0a1b45a2 | 420 | false, /* partial_inplace */ |
07d6d2b8 AM |
421 | 0x0, /* src_mask */ |
422 | 0xf, /* dst_mask */ | |
0a1b45a2 | 423 | false), /* pcrel_offset */ |
07d6d2b8 AM |
424 | |
425 | HOWTO (R_CR16_DISP8, /* type */ | |
426 | 1, /* rightshift */ | |
427 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
428 | 8, /* bitsize */ | |
0a1b45a2 | 429 | true, /* pc_relative */ |
07d6d2b8 AM |
430 | 0, /* bitpos */ |
431 | complain_overflow_unsigned, /* complain_on_overflow */ | |
432 | bfd_elf_generic_reloc, /* special_function */ | |
433 | "R_CR16_DISP8", /* name */ | |
0a1b45a2 | 434 | false, /* partial_inplace */ |
07d6d2b8 AM |
435 | 0x0, /* src_mask */ |
436 | 0x1ff, /* dst_mask */ | |
0a1b45a2 | 437 | false), /* pcrel_offset */ |
07d6d2b8 AM |
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 */ | |
0a1b45a2 | 443 | true, /* pc_relative */ |
07d6d2b8 AM |
444 | 0, /* bitpos */ |
445 | complain_overflow_unsigned, /* complain_on_overflow */ | |
446 | bfd_elf_generic_reloc, /* special_function */ | |
447 | "R_CR16_DISP16", /* name */ | |
0a1b45a2 | 448 | false, /* partial_inplace */ |
07d6d2b8 AM |
449 | 0x0, /* src_mask */ |
450 | 0x1ffff, /* dst_mask */ | |
0a1b45a2 | 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 */ | |
0a1b45a2 | 458 | true, /* pc_relative */ |
07d6d2b8 AM |
459 | 0, /* bitpos */ |
460 | complain_overflow_unsigned, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* special_function */ | |
462 | "R_CR16_DISP24", /* name */ | |
0a1b45a2 | 463 | false, /* partial_inplace */ |
07d6d2b8 AM |
464 | 0x0, /* src_mask */ |
465 | 0x1ffffff, /* dst_mask */ | |
0a1b45a2 | 466 | false), /* pcrel_offset */ |
07d6d2b8 AM |
467 | |
468 | HOWTO (R_CR16_DISP24a, /* type */ | |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 24, /* bitsize */ | |
0a1b45a2 | 472 | true, /* pc_relative */ |
07d6d2b8 AM |
473 | 0, /* bitpos */ |
474 | complain_overflow_unsigned, /* complain_on_overflow */ | |
475 | bfd_elf_generic_reloc, /* special_function */ | |
476 | "R_CR16_DISP24a", /* name */ | |
0a1b45a2 | 477 | false, /* partial_inplace */ |
07d6d2b8 AM |
478 | 0x0, /* src_mask */ |
479 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 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 */ | |
0a1b45a2 | 489 | false, /* pc_relative */ |
07d6d2b8 AM |
490 | 0, /* bitpos */ |
491 | complain_overflow_unsigned, /* complain_on_overflow */ | |
492 | bfd_elf_generic_reloc, /* special_function */ | |
493 | "R_CR16_SWITCH8", /* name */ | |
0a1b45a2 | 494 | false, /* partial_inplace */ |
07d6d2b8 AM |
495 | 0x0, /* src_mask */ |
496 | 0xff, /* dst_mask */ | |
0a1b45a2 | 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 */ | |
0a1b45a2 | 506 | false, /* pc_relative */ |
07d6d2b8 AM |
507 | 0, /* bitpos */ |
508 | complain_overflow_unsigned, /* complain_on_overflow */ | |
509 | bfd_elf_generic_reloc, /* special_function */ | |
510 | "R_CR16_SWITCH16", /* name */ | |
0a1b45a2 | 511 | false, /* partial_inplace */ |
07d6d2b8 AM |
512 | 0x0, /* src_mask */ |
513 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 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 */ | |
0a1b45a2 | 523 | false, /* pc_relative */ |
07d6d2b8 AM |
524 | 0, /* bitpos */ |
525 | complain_overflow_unsigned, /* complain_on_overflow */ | |
526 | bfd_elf_generic_reloc, /* special_function */ | |
527 | "R_CR16_SWITCH32", /* name */ | |
0a1b45a2 | 528 | false, /* partial_inplace */ |
07d6d2b8 AM |
529 | 0x0, /* src_mask */ |
530 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 531 | true), /* pcrel_offset */ |
07d6d2b8 AM |
532 | |
533 | HOWTO (R_CR16_GOT_REGREL20, /* type */ | |
534 | 0, /* rightshift */ | |
535 | 2, /* size */ | |
536 | 20, /* bitsize */ | |
0a1b45a2 | 537 | false, /* pc_relative */ |
07d6d2b8 AM |
538 | 0, /* bitpos */ |
539 | complain_overflow_bitfield,/* complain_on_overflow */ | |
540 | bfd_elf_generic_reloc, /* special_function */ | |
541 | "R_CR16_GOT_REGREL20", /* name */ | |
0a1b45a2 | 542 | true, /* partial_inplace */ |
07d6d2b8 AM |
543 | 0x0, /* src_mask */ |
544 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 545 | false), /* pcrel_offset */ |
07d6d2b8 AM |
546 | |
547 | HOWTO (R_CR16_GOTC_REGREL20, /* type */ | |
548 | 0, /* rightshift */ | |
549 | 2, /* size */ | |
550 | 20, /* bitsize */ | |
0a1b45a2 | 551 | false, /* pc_relative */ |
07d6d2b8 AM |
552 | 0, /* bitpos */ |
553 | complain_overflow_bitfield,/* complain_on_overflow */ | |
554 | bfd_elf_generic_reloc, /* special_function */ | |
555 | "R_CR16_GOTC_REGREL20", /* name */ | |
0a1b45a2 | 556 | true, /* partial_inplace */ |
07d6d2b8 AM |
557 | 0x0, /* src_mask */ |
558 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 559 | false), /* pcrel_offset */ |
07d6d2b8 AM |
560 | |
561 | HOWTO (R_CR16_GLOB_DAT, /* type */ | |
562 | 0, /* rightshift */ | |
563 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
564 | 32, /* bitsize */ | |
0a1b45a2 | 565 | false, /* pc_relative */ |
07d6d2b8 AM |
566 | 0, /* bitpos */ |
567 | complain_overflow_unsigned, /* complain_on_overflow */ | |
568 | bfd_elf_generic_reloc, /* special_function */ | |
569 | "R_CR16_GLOB_DAT", /* name */ | |
0a1b45a2 | 570 | false, /* partial_inplace */ |
07d6d2b8 AM |
571 | 0x0, /* src_mask */ |
572 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 573 | true) /* pcrel_offset */ |
3d3d428f NC |
574 | }; |
575 | ||
99706f30 SR |
576 | |
577 | /* Create the GOT section. */ | |
578 | ||
0a1b45a2 | 579 | static bool |
99706f30 SR |
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) |
0a1b45a2 | 591 | return true; |
99706f30 SR |
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); | |
0a1b45a2 | 605 | return false; |
99706f30 SR |
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)) |
0a1b45a2 | 615 | return false; |
99706f30 SR |
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)) |
0a1b45a2 | 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 | 632 | if (h == NULL) |
0a1b45a2 | 633 | return false; |
99706f30 SR |
634 | |
635 | /* The first bit of the global offset table is the header. */ | |
636 | s->size += bed->got_header_size; | |
637 | ||
0a1b45a2 | 638 | return true; |
99706f30 SR |
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 | ||
0a1b45a2 | 675 | static bool |
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); |
0a1b45a2 | 687 | return false; |
cd21f5da | 688 | } |
99706f30 | 689 | cache_ptr->howto = cr16_elf_howto_table + r_type; |
0a1b45a2 | 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 | ||
0a1b45a2 | 697 | static bool |
99706f30 | 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; | |
0a1b45a2 | 713 | bool result = false; |
99706f30 | 714 | |
0e1862bb | 715 | if (bfd_link_relocatable (info)) |
0a1b45a2 | 716 | return true; |
99706f30 SR |
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 | ||
0a1b45a2 | 827 | result = true; |
c9594989 AM |
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 | { | |
db75b8f7 AM |
857 | case R_CR16_IMM4: |
858 | case R_CR16_IMM20: | |
859 | case R_CR16_ABS20: | |
860 | break; | |
861 | ||
862 | case R_CR16_IMM8: | |
863 | case R_CR16_IMM16: | |
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: | |
872 | case R_CR16_REGREL20a: | |
873 | case R_CR16_GOT_REGREL20: | |
874 | case R_CR16_GOTC_REGREL20: | |
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 | |
879 | relocation offset. Advance it to account for the exact offset. */ | |
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: | |
888 | if (is_local) | |
07d6d2b8 | 889 | Rvalue += -1; |
db75b8f7 | 890 | break; |
7fac7ff4 | 891 | |
db75b8f7 AM |
892 | case R_CR16_DISP8: |
893 | case R_CR16_DISP24a: | |
894 | if (is_local) | |
07d6d2b8 | 895 | Rvalue -= -1; |
db75b8f7 | 896 | break; |
7fac7ff4 | 897 | |
db75b8f7 AM |
898 | case R_CR16_SWITCH8: |
899 | case R_CR16_SWITCH16: | |
900 | case R_CR16_SWITCH32: | |
901 | /* We only care about the addend, where the difference between | |
902 | expressions is kept. */ | |
903 | Rvalue = 0; | |
68ffbac6 | 904 | |
db75b8f7 AM |
905 | default: |
906 | break; | |
3d3d428f NC |
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 | ||
34d8e6d0 | 925 | reloc_bits = ((bfd_vma) 1 << (howto->bitsize - 1) << 1) - 1; |
3d3d428f | 926 | |
99706f30 SR |
927 | /* For GOT and GOTC relocs no boundary checks applied. */ |
928 | if (!((r_type == R_CR16_GOT_REGREL20) | |
db75b8f7 | 929 | || (r_type == R_CR16_GOTC_REGREL20))) |
3d3d428f | 930 | { |
99706f30 | 931 | if (((bfd_vma) check & ~reloc_bits) != 0 |
07d6d2b8 | 932 | && (((bfd_vma) check & ~reloc_bits) |
db75b8f7 | 933 | != (-(bfd_vma) 1 & ~reloc_bits))) |
07d6d2b8 AM |
934 | { |
935 | /* The above right shift is incorrect for a signed | |
936 | value. See if turning on the upper bits fixes the | |
937 | overflow. */ | |
938 | if (howto->rightshift && (bfd_signed_vma) Rvalue < 0) | |
939 | { | |
db75b8f7 AM |
940 | check |= ((bfd_vma) -1 |
941 | & ~((bfd_vma) -1 >> howto->rightshift)); | |
07d6d2b8 AM |
942 | |
943 | if (((bfd_vma) check & ~reloc_bits) | |
944 | != (-(bfd_vma) 1 & ~reloc_bits)) | |
db75b8f7 | 945 | return bfd_reloc_overflow; |
07d6d2b8 AM |
946 | } |
947 | else | |
948 | return bfd_reloc_overflow; | |
949 | } | |
3d3d428f | 950 | |
99706f30 SR |
951 | /* Drop unwanted bits from the value we are relocating to. */ |
952 | Rvalue >>= (bfd_vma) howto->rightshift; | |
3d3d428f | 953 | |
99706f30 SR |
954 | /* Apply dst_mask to select only relocatable part of the insn. */ |
955 | Rvalue &= howto->dst_mask; | |
956 | } | |
3d3d428f NC |
957 | |
958 | switch (howto->size) | |
959 | { | |
db75b8f7 AM |
960 | case 0: |
961 | if (r_type == R_CR16_DISP8) | |
962 | { | |
963 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
964 | Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00) | |
965 | | (Rvalue1 & 0x00f0) | (Rvalue & 0xf)); | |
966 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
967 | } | |
968 | else if (r_type == R_CR16_IMM4) | |
969 | { | |
970 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
971 | Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0) | |
972 | | ((Rvalue1 & 0x0f00) >> 8)); | |
973 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
974 | } | |
975 | else if (r_type == R_CR16_DISP4) | |
976 | { | |
977 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
978 | Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4)); | |
979 | bfd_put_16 (input_bfd, Rvalue, hit_data); | |
980 | } | |
981 | else | |
982 | { | |
983 | bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data); | |
984 | } | |
985 | break; | |
986 | ||
987 | case 1: | |
988 | if (r_type == R_CR16_DISP16) | |
989 | { | |
990 | Rvalue |= (bfd_get_16 (input_bfd, hit_data)); | |
991 | Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1)); | |
992 | } | |
993 | if (r_type == R_CR16_IMM16) | |
994 | { | |
995 | Rvalue1 = bfd_get_16 (input_bfd, hit_data); | |
996 | ||
997 | Rvalue1 = (Rvalue1 ^ 0x8000) - 0x8000; | |
998 | Rvalue += Rvalue1; | |
07d6d2b8 | 999 | |
db75b8f7 AM |
1000 | /* Check for range. */ |
1001 | if (Rvalue > 0xffff) | |
1002 | return bfd_reloc_overflow; | |
1003 | } | |
07d6d2b8 | 1004 | |
db75b8f7 AM |
1005 | bfd_put_16 (input_bfd, Rvalue, hit_data); |
1006 | break; | |
3d3d428f | 1007 | |
db75b8f7 AM |
1008 | case 2: |
1009 | if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20)) | |
1010 | { | |
1011 | Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2) | |
1012 | | (((bfd_get_16 (input_bfd, hit_data) & 0xf) << 16))); | |
07d6d2b8 | 1013 | |
db75b8f7 AM |
1014 | Rvalue1 = (Rvalue1 ^ 0x80000) - 0x80000; |
1015 | Rvalue += Rvalue1; | |
07d6d2b8 | 1016 | |
db75b8f7 AM |
1017 | /* Check for range. */ |
1018 | if (Rvalue > 0xfffff) | |
1019 | return bfd_reloc_overflow; | |
07d6d2b8 | 1020 | |
db75b8f7 AM |
1021 | bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0) |
1022 | | ((Rvalue >> 16) & 0xf)), hit_data); | |
1023 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
1024 | } | |
1025 | else if (r_type == R_CR16_GOT_REGREL20) | |
1026 | { | |
1027 | asection *sgot = elf_hash_table (info)->sgot; | |
1028 | bfd_vma off; | |
1029 | ||
1030 | if (h != NULL) | |
1031 | { | |
1032 | off = h->got.offset; | |
1033 | BFD_ASSERT (off != (bfd_vma) -1); | |
1034 | ||
1035 | if (! elf_hash_table (info)->dynamic_sections_created | |
1036 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
1037 | /* This is actually a static link, or it is a | |
1038 | -Bsymbolic link and the symbol is defined | |
1039 | locally, or the symbol was forced to be local | |
1040 | because of a version file. We must initialize | |
1041 | this entry in the global offset table. | |
1042 | When doing a dynamic link, we create a .rela.got | |
1043 | relocation entry to initialize the value. This | |
1044 | is done in the finish_dynamic_symbol routine. */ | |
1045 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | off = elf_local_got_offsets (input_bfd)[symndx]; | |
1050 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1051 | } | |
1052 | ||
1053 | Rvalue = sgot->output_offset + off; | |
1054 | Rvalue += addend; | |
1055 | ||
1056 | /* REVISIT: if ((long) Rvalue > 0xffffff || | |
1057 | (long) Rvalue < -0x800000). */ | |
1058 | if (Rvalue > 0xffffff) | |
1059 | return bfd_reloc_overflow; | |
07d6d2b8 | 1060 | |
07d6d2b8 | 1061 | |
db75b8f7 AM |
1062 | bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data)) |
1063 | | (((Rvalue >> 16) & 0xf) << 8), hit_data); | |
1064 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
07d6d2b8 | 1065 | |
db75b8f7 AM |
1066 | } |
1067 | else if (r_type == R_CR16_GOTC_REGREL20) | |
1068 | { | |
1069 | asection *sgot = elf_hash_table (info)->sgot; | |
1070 | bfd_vma off; | |
1071 | ||
1072 | if (h != NULL) | |
1073 | { | |
1074 | off = h->got.offset; | |
1075 | BFD_ASSERT (off != (bfd_vma) -1); | |
1076 | ||
1077 | Rvalue >>= 1; /* For code symbols. */ | |
1078 | ||
1079 | if (! elf_hash_table (info)->dynamic_sections_created | |
1080 | || SYMBOL_REFERENCES_LOCAL (info, h)) | |
1081 | /* This is actually a static link, or it is a | |
1082 | -Bsymbolic link and the symbol is defined | |
1083 | locally, or the symbol was forced to be local | |
1084 | because of a version file. We must initialize | |
1085 | this entry in the global offset table. | |
1086 | When doing a dynamic link, we create a .rela.got | |
1087 | relocation entry to initialize the value. This | |
1088 | is done in the finish_dynamic_symbol routine. */ | |
1089 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1090 | } | |
1091 | else | |
1092 | { | |
1093 | off = elf_local_got_offsets (input_bfd)[symndx]; | |
1094 | Rvalue >>= 1; | |
1095 | bfd_put_32 (output_bfd, Rvalue, sgot->contents + off); | |
1096 | } | |
07d6d2b8 | 1097 | |
db75b8f7 AM |
1098 | Rvalue = sgot->output_offset + off; |
1099 | Rvalue += addend; | |
07d6d2b8 | 1100 | |
db75b8f7 AM |
1101 | /* Check if any value in DISP. */ |
1102 | Rvalue1 = bfd_get_32 (input_bfd, hit_data); | |
1103 | Rvalue1 = ((Rvalue1 >> 16) | ((Rvalue1 & 0xfff) >> 8 << 16)); | |
07d6d2b8 | 1104 | |
db75b8f7 AM |
1105 | Rvalue1 = (Rvalue1 ^ 0x80000) - 0x80000; |
1106 | Rvalue += Rvalue1; | |
07d6d2b8 | 1107 | |
db75b8f7 AM |
1108 | /* Check for range. */ |
1109 | /* REVISIT: if ((long) Rvalue > 0xffffff | |
1110 | || (long) Rvalue < -0x800000). */ | |
1111 | if (Rvalue > 0xffffff) | |
1112 | return bfd_reloc_overflow; | |
07d6d2b8 | 1113 | |
db75b8f7 AM |
1114 | bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data)) |
1115 | | (((Rvalue >> 16) & 0xf) << 8), hit_data); | |
1116 | bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2); | |
1117 | } | |
1118 | else | |
1119 | { | |
1120 | if (r_type == R_CR16_ABS24) | |
1121 | { | |
1122 | Rvalue1 = bfd_get_32 (input_bfd, hit_data); | |
1123 | Rvalue1 = ((Rvalue1 >> 16) | |
1124 | | ((Rvalue1 & 0xfff) >> 8 << 16) | |
1125 | | ((Rvalue1 & 0xf) << 20)); | |
07d6d2b8 | 1126 | |
db75b8f7 AM |
1127 | Rvalue1 = (Rvalue1 ^ 0x800000) - 0x800000; |
1128 | Rvalue += Rvalue1; | |
07d6d2b8 | 1129 | |
db75b8f7 AM |
1130 | /* Check for Range. */ |
1131 | if (Rvalue > 0xffffff) | |
1132 | return bfd_reloc_overflow; | |
07d6d2b8 | 1133 | |
db75b8f7 AM |
1134 | Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8) |
1135 | | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0)) | |
1136 | | ((Rvalue & 0xffff) << 16)); | |
1137 | } | |
1138 | else if (r_type == R_CR16_DISP24) | |
1139 | { | |
1140 | Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8) | |
1141 | | (bfd_get_16 (input_bfd, hit_data))) | |
1142 | | (((Rvalue & 0xfffe) | ((Rvalue >> 24) & 0x1)) << 16)); | |
1143 | } | |
1144 | else if ((r_type == R_CR16_IMM32) || (r_type == R_CR16_IMM32a)) | |
1145 | { | |
1146 | Rvalue1 = bfd_get_32 (input_bfd, hit_data); | |
1147 | Rvalue1 = (((Rvalue1 >> 16) & 0xffff) | |
1148 | | ((Rvalue1 & 0xffff) << 16)); | |
07d6d2b8 | 1149 | |
db75b8f7 AM |
1150 | Rvalue1 = (Rvalue1 ^ 0x80000000) - 0x80000000; |
1151 | Rvalue += Rvalue1; | |
07d6d2b8 | 1152 | |
db75b8f7 AM |
1153 | /* Check for range. */ |
1154 | if (Rvalue > 0xffffffff) | |
1155 | return bfd_reloc_overflow; | |
07d6d2b8 | 1156 | |
db75b8f7 AM |
1157 | Rvalue = (((Rvalue >> 16) & 0xffff) | (Rvalue & 0xffff) << 16); |
1158 | } | |
1159 | else if (r_type == R_CR16_DISP24a) | |
1160 | { | |
1161 | Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23))); | |
1162 | Rvalue = (((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16) | |
1163 | | bfd_get_32 (input_bfd, hit_data)); | |
1164 | } | |
1165 | else if ((r_type == R_CR16_REGREL20) | |
1166 | || (r_type == R_CR16_REGREL20a)) | |
1167 | { | |
1168 | Rvalue1 = bfd_get_32 (input_bfd, hit_data); | |
1169 | Rvalue1 = (((Rvalue1 >> 16) & 0xffff) | |
1170 | | ((Rvalue1 & 0xfff) >> 8 << 16)); | |
07d6d2b8 | 1171 | |
db75b8f7 AM |
1172 | Rvalue1 = (Rvalue1 ^ 0x80000) - 0x80000; |
1173 | Rvalue += Rvalue1; | |
07d6d2b8 AM |
1174 | |
1175 | /* Check for range. */ | |
db75b8f7 AM |
1176 | if (Rvalue > 0xfffff) |
1177 | return bfd_reloc_overflow; | |
1178 | ||
1179 | Rvalue = (((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf) << 8) | |
1180 | | ((Rvalue & 0xffff) << 16))) | |
1181 | | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff)); | |
1182 | ||
1183 | } | |
1184 | else if (r_type == R_CR16_NUM32) | |
1185 | { | |
1186 | Rvalue1 = (bfd_get_32 (input_bfd, hit_data)); | |
1187 | ||
1188 | Rvalue1 = (Rvalue1 ^ 0x80000000) - 0x80000000; | |
1189 | Rvalue += Rvalue1; | |
1190 | ||
1191 | /* Check for Range. */ | |
1192 | if (Rvalue > 0xffffffff) | |
1193 | return bfd_reloc_overflow; | |
1194 | } | |
1195 | ||
1196 | bfd_put_32 (input_bfd, Rvalue, hit_data); | |
1197 | } | |
1198 | break; | |
1199 | ||
1200 | default: | |
1201 | return bfd_reloc_notsupported; | |
3d3d428f NC |
1202 | } |
1203 | ||
1204 | return bfd_reloc_ok; | |
1205 | } | |
1206 | ||
1207 | /* Delete some bytes from a section while relaxing. */ | |
1208 | ||
0a1b45a2 | 1209 | static bool |
3d3d428f | 1210 | elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd, |
07d6d2b8 | 1211 | asection *sec, bfd_vma addr, int count) |
3d3d428f NC |
1212 | { |
1213 | Elf_Internal_Shdr *symtab_hdr; | |
1214 | unsigned int sec_shndx; | |
1215 | bfd_byte *contents; | |
1216 | Elf_Internal_Rela *irel, *irelend; | |
3d3d428f NC |
1217 | bfd_vma toaddr; |
1218 | Elf_Internal_Sym *isym; | |
1219 | Elf_Internal_Sym *isymend; | |
1220 | struct elf_link_hash_entry **sym_hashes; | |
1221 | struct elf_link_hash_entry **end_hashes; | |
1222 | struct elf_link_hash_entry **start_hashes; | |
1223 | unsigned int symcount; | |
1224 | ||
1225 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1226 | ||
1227 | contents = elf_section_data (sec)->this_hdr.contents; | |
1228 | ||
3d3d428f NC |
1229 | toaddr = sec->size; |
1230 | ||
1231 | irel = elf_section_data (sec)->relocs; | |
1232 | irelend = irel + sec->reloc_count; | |
1233 | ||
1234 | /* Actually delete the bytes. */ | |
1235 | memmove (contents + addr, contents + addr + count, | |
07d6d2b8 | 1236 | (size_t) (toaddr - addr - count)); |
3d3d428f NC |
1237 | sec->size -= count; |
1238 | ||
1239 | /* Adjust all the relocs. */ | |
1240 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1241 | /* Get the new reloc address. */ | |
1242 | if ((irel->r_offset > addr && irel->r_offset < toaddr)) | |
db75b8f7 | 1243 | irel->r_offset -= count; |
3d3d428f NC |
1244 | |
1245 | /* Adjust the local symbols defined in this section. */ | |
1246 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1247 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1248 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
1249 | { | |
1250 | if (isym->st_shndx == sec_shndx | |
07d6d2b8 AM |
1251 | && isym->st_value > addr |
1252 | && isym->st_value < toaddr) | |
1253 | { | |
1254 | /* Adjust the addend of SWITCH relocations in this section, | |
1255 | which reference this local symbol. */ | |
99706f30 | 1256 | #if 0 |
07d6d2b8 AM |
1257 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) |
1258 | { | |
1259 | unsigned long r_symndx; | |
1260 | Elf_Internal_Sym *rsym; | |
1261 | bfd_vma addsym, subsym; | |
1262 | ||
1263 | /* Skip if not a SWITCH relocation. */ | |
1264 | if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8 | |
1265 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16 | |
1266 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32) | |
db75b8f7 | 1267 | continue; |
07d6d2b8 AM |
1268 | |
1269 | r_symndx = ELF32_R_SYM (irel->r_info); | |
1270 | rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx; | |
1271 | ||
1272 | /* Skip if not the local adjusted symbol. */ | |
1273 | if (rsym != isym) | |
1274 | continue; | |
1275 | ||
1276 | addsym = isym->st_value; | |
1277 | subsym = addsym - irel->r_addend; | |
1278 | ||
1279 | /* Fix the addend only when -->> (addsym > addr >= subsym). */ | |
1280 | if (subsym <= addr) | |
1281 | irel->r_addend -= count; | |
1282 | else | |
1283 | continue; | |
1284 | } | |
99706f30 | 1285 | #endif |
3d3d428f | 1286 | |
07d6d2b8 AM |
1287 | isym->st_value -= count; |
1288 | } | |
3d3d428f NC |
1289 | } |
1290 | ||
1291 | /* Now adjust the global symbols defined in this section. */ | |
1292 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
db75b8f7 | 1293 | - symtab_hdr->sh_info); |
3d3d428f NC |
1294 | sym_hashes = start_hashes = elf_sym_hashes (abfd); |
1295 | end_hashes = sym_hashes + symcount; | |
1296 | ||
1297 | for (; sym_hashes < end_hashes; sym_hashes++) | |
1298 | { | |
1299 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
1300 | ||
1301 | /* The '--wrap SYMBOL' option is causing a pain when the object file, | |
07d6d2b8 AM |
1302 | containing the definition of __wrap_SYMBOL, includes a direct |
1303 | call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference | |
1304 | the same symbol (which is __wrap_SYMBOL), but still exist as two | |
1305 | different symbols in 'sym_hashes', we don't want to adjust | |
1306 | the global symbol __wrap_SYMBOL twice. | |
1307 | This check is only relevant when symbols are being wrapped. */ | |
3d3d428f | 1308 | if (link_info->wrap_hash != NULL) |
07d6d2b8 AM |
1309 | { |
1310 | struct elf_link_hash_entry **cur_sym_hashes; | |
1311 | ||
1312 | /* Loop only over the symbols whom been already checked. */ | |
1313 | for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes; | |
1314 | cur_sym_hashes++) | |
1315 | /* If the current symbol is identical to 'sym_hash', that means | |
1316 | the symbol was already adjusted (or at least checked). */ | |
1317 | if (*cur_sym_hashes == sym_hash) | |
1318 | break; | |
1319 | ||
1320 | /* Don't adjust the symbol again. */ | |
1321 | if (cur_sym_hashes < sym_hashes) | |
1322 | continue; | |
1323 | } | |
3d3d428f NC |
1324 | |
1325 | if ((sym_hash->root.type == bfd_link_hash_defined | |
db75b8f7 | 1326 | || sym_hash->root.type == bfd_link_hash_defweak) |
07d6d2b8 AM |
1327 | && sym_hash->root.u.def.section == sec |
1328 | && sym_hash->root.u.def.value > addr | |
1329 | && sym_hash->root.u.def.value < toaddr) | |
1330 | sym_hash->root.u.def.value -= count; | |
3d3d428f NC |
1331 | } |
1332 | ||
0a1b45a2 | 1333 | return true; |
3d3d428f NC |
1334 | } |
1335 | ||
1336 | /* Relocate a CR16 ELF section. */ | |
1337 | ||
0f684201 | 1338 | static int |
3d3d428f | 1339 | elf32_cr16_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
07d6d2b8 AM |
1340 | bfd *input_bfd, asection *input_section, |
1341 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
1342 | Elf_Internal_Sym *local_syms, | |
1343 | asection **local_sections) | |
3d3d428f NC |
1344 | { |
1345 | Elf_Internal_Shdr *symtab_hdr; | |
1346 | struct elf_link_hash_entry **sym_hashes; | |
1347 | Elf_Internal_Rela *rel, *relend; | |
1348 | ||
3d3d428f NC |
1349 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
1350 | sym_hashes = elf_sym_hashes (input_bfd); | |
1351 | ||
1352 | rel = relocs; | |
1353 | relend = relocs + input_section->reloc_count; | |
1354 | for (; rel < relend; rel++) | |
1355 | { | |
1356 | int r_type; | |
1357 | reloc_howto_type *howto; | |
1358 | unsigned long r_symndx; | |
1359 | Elf_Internal_Sym *sym; | |
1360 | asection *sec; | |
1361 | struct elf_link_hash_entry *h; | |
1362 | bfd_vma relocation; | |
1363 | bfd_reloc_status_type r; | |
1364 | ||
1365 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1366 | r_type = ELF32_R_TYPE (rel->r_info); | |
1367 | howto = cr16_elf_howto_table + (r_type); | |
1368 | ||
1369 | h = NULL; | |
1370 | sym = NULL; | |
1371 | sec = NULL; | |
1372 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
1373 | { |
1374 | sym = local_syms + r_symndx; | |
1375 | sec = local_sections[r_symndx]; | |
1376 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1377 | } | |
3d3d428f | 1378 | else |
07d6d2b8 | 1379 | { |
0a1b45a2 | 1380 | bool unresolved_reloc, warned, ignored; |
3d3d428f | 1381 | |
07d6d2b8 AM |
1382 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1383 | r_symndx, symtab_hdr, sym_hashes, | |
1384 | h, sec, relocation, | |
1385 | unresolved_reloc, warned, ignored); | |
1386 | } | |
3d3d428f | 1387 | |
dbaa2011 | 1388 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 1389 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 1390 | rel, 1, relend, howto, 0, contents); |
1004c3e1 | 1391 | |
0e1862bb | 1392 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 1393 | continue; |
1004c3e1 | 1394 | |
3d3d428f | 1395 | r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd, |
07d6d2b8 AM |
1396 | input_section, |
1397 | contents, rel->r_offset, | |
1398 | relocation, rel->r_addend, | |
1399 | (struct elf_link_hash_entry *) h, | |
1400 | r_symndx, | |
1401 | info, sec, h == NULL); | |
3d3d428f NC |
1402 | |
1403 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1404 | { |
1405 | const char *name; | |
1406 | const char *msg = NULL; | |
1407 | ||
1408 | if (h != NULL) | |
1409 | name = h->root.root.string; | |
1410 | else | |
1411 | { | |
1412 | name = (bfd_elf_string_from_elf_section | |
1413 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1414 | if (name == NULL || *name == '\0') | |
fd361982 | 1415 | name = bfd_section_name (sec); |
07d6d2b8 AM |
1416 | } |
1417 | ||
1418 | switch (r) | |
1419 | { | |
db75b8f7 AM |
1420 | case bfd_reloc_overflow: |
1421 | (*info->callbacks->reloc_overflow) | |
1422 | (info, (h ? &h->root : NULL), name, howto->name, | |
1423 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
1424 | break; | |
1425 | ||
1426 | case bfd_reloc_undefined: | |
1427 | (*info->callbacks->undefined_symbol) | |
0a1b45a2 | 1428 | (info, name, input_bfd, input_section, rel->r_offset, true); |
db75b8f7 AM |
1429 | break; |
1430 | ||
1431 | case bfd_reloc_outofrange: | |
1432 | msg = _("internal error: out of range error"); | |
1433 | goto common_error; | |
1434 | ||
1435 | case bfd_reloc_notsupported: | |
1436 | msg = _("internal error: unsupported relocation error"); | |
1437 | goto common_error; | |
1438 | ||
1439 | case bfd_reloc_dangerous: | |
1440 | msg = _("internal error: dangerous error"); | |
1441 | goto common_error; | |
1442 | ||
1443 | default: | |
1444 | msg = _("internal error: unknown error"); | |
1445 | /* Fall through. */ | |
1446 | ||
1447 | common_error: | |
1448 | (*info->callbacks->warning) (info, msg, name, input_bfd, | |
1449 | input_section, rel->r_offset); | |
1450 | break; | |
07d6d2b8 AM |
1451 | } |
1452 | } | |
3d3d428f NC |
1453 | } |
1454 | ||
0a1b45a2 | 1455 | return true; |
3d3d428f NC |
1456 | } |
1457 | ||
1458 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1459 | which uses elf32_cr16_relocate_section. */ | |
1460 | ||
1461 | static bfd_byte * | |
1462 | elf32_cr16_get_relocated_section_contents (bfd *output_bfd, | |
07d6d2b8 AM |
1463 | struct bfd_link_info *link_info, |
1464 | struct bfd_link_order *link_order, | |
1465 | bfd_byte *data, | |
0a1b45a2 | 1466 | bool relocatable, |
07d6d2b8 | 1467 | asymbol **symbols) |
3d3d428f NC |
1468 | { |
1469 | Elf_Internal_Shdr *symtab_hdr; | |
1470 | asection *input_section = link_order->u.indirect.section; | |
1471 | bfd *input_bfd = input_section->owner; | |
1472 | asection **sections = NULL; | |
1473 | Elf_Internal_Rela *internal_relocs = NULL; | |
1474 | Elf_Internal_Sym *isymbuf = NULL; | |
1475 | ||
1476 | /* We only need to handle the case of relaxing, or of having a | |
1477 | particular set of section contents, specially. */ | |
1478 | if (relocatable | |
1479 | || elf_section_data (input_section)->this_hdr.contents == NULL) | |
1480 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
07d6d2b8 AM |
1481 | link_order, data, |
1482 | relocatable, | |
1483 | symbols); | |
3d3d428f NC |
1484 | |
1485 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1486 | ||
1487 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
07d6d2b8 | 1488 | (size_t) input_section->size); |
3d3d428f NC |
1489 | |
1490 | if ((input_section->flags & SEC_RELOC) != 0 | |
1491 | && input_section->reloc_count > 0) | |
1492 | { | |
1493 | Elf_Internal_Sym *isym; | |
1494 | Elf_Internal_Sym *isymend; | |
1495 | asection **secpp; | |
1496 | bfd_size_type amt; | |
1497 | ||
1498 | internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section, | |
0a1b45a2 | 1499 | NULL, NULL, false); |
3d3d428f | 1500 | if (internal_relocs == NULL) |
07d6d2b8 | 1501 | goto error_return; |
3d3d428f NC |
1502 | |
1503 | if (symtab_hdr->sh_info != 0) | |
07d6d2b8 AM |
1504 | { |
1505 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1506 | if (isymbuf == NULL) | |
1507 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1508 | symtab_hdr->sh_info, 0, | |
1509 | NULL, NULL, NULL); | |
1510 | if (isymbuf == NULL) | |
1511 | goto error_return; | |
1512 | } | |
3d3d428f NC |
1513 | |
1514 | amt = symtab_hdr->sh_info; | |
1515 | amt *= sizeof (asection *); | |
1516 | sections = bfd_malloc (amt); | |
1517 | if (sections == NULL && amt != 0) | |
07d6d2b8 | 1518 | goto error_return; |
3d3d428f NC |
1519 | |
1520 | isymend = isymbuf + symtab_hdr->sh_info; | |
1521 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
07d6d2b8 AM |
1522 | { |
1523 | asection *isec; | |
3d3d428f | 1524 | |
07d6d2b8 AM |
1525 | if (isym->st_shndx == SHN_UNDEF) |
1526 | isec = bfd_und_section_ptr; | |
1527 | else if (isym->st_shndx == SHN_ABS) | |
1528 | isec = bfd_abs_section_ptr; | |
1529 | else if (isym->st_shndx == SHN_COMMON) | |
1530 | isec = bfd_com_section_ptr; | |
1531 | else | |
1532 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); | |
3d3d428f | 1533 | |
07d6d2b8 AM |
1534 | *secpp = isec; |
1535 | } | |
3d3d428f NC |
1536 | |
1537 | if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd, | |
db75b8f7 AM |
1538 | input_section, data, internal_relocs, |
1539 | isymbuf, sections)) | |
07d6d2b8 | 1540 | goto error_return; |
3d3d428f | 1541 | |
c9594989 AM |
1542 | free (sections); |
1543 | if (symtab_hdr->contents != (unsigned char *) isymbuf) | |
07d6d2b8 | 1544 | free (isymbuf); |
3d3d428f | 1545 | if (elf_section_data (input_section)->relocs != internal_relocs) |
07d6d2b8 | 1546 | free (internal_relocs); |
3d3d428f NC |
1547 | } |
1548 | ||
1549 | return data; | |
1550 | ||
1551 | error_return: | |
c9594989 AM |
1552 | free (sections); |
1553 | if (symtab_hdr->contents != (unsigned char *) isymbuf) | |
3d3d428f | 1554 | free (isymbuf); |
c9594989 | 1555 | if (elf_section_data (input_section)->relocs != internal_relocs) |
3d3d428f NC |
1556 | free (internal_relocs); |
1557 | return NULL; | |
1558 | } | |
1559 | ||
99706f30 SR |
1560 | /* Assorted hash table functions. */ |
1561 | ||
1562 | /* Initialize an entry in the link hash table. */ | |
1563 | ||
1564 | /* Create an entry in an CR16 ELF linker hash table. */ | |
1565 | ||
1566 | static struct bfd_hash_entry * | |
1567 | elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry, | |
07d6d2b8 AM |
1568 | struct bfd_hash_table *table, |
1569 | const char *string) | |
99706f30 SR |
1570 | { |
1571 | struct elf32_cr16_link_hash_entry *ret = | |
1572 | (struct elf32_cr16_link_hash_entry *) entry; | |
1573 | ||
1574 | /* Allocate the structure if it has not already been allocated by a | |
1575 | subclass. */ | |
1576 | if (ret == (struct elf32_cr16_link_hash_entry *) NULL) | |
1577 | ret = ((struct elf32_cr16_link_hash_entry *) | |
07d6d2b8 AM |
1578 | bfd_hash_allocate (table, |
1579 | sizeof (struct elf32_cr16_link_hash_entry))); | |
99706f30 SR |
1580 | if (ret == (struct elf32_cr16_link_hash_entry *) NULL) |
1581 | return (struct bfd_hash_entry *) ret; | |
1582 | ||
1583 | /* Call the allocation method of the superclass. */ | |
1584 | ret = ((struct elf32_cr16_link_hash_entry *) | |
07d6d2b8 AM |
1585 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
1586 | table, string)); | |
99706f30 SR |
1587 | if (ret != (struct elf32_cr16_link_hash_entry *) NULL) |
1588 | { | |
1589 | ret->direct_calls = 0; | |
1590 | ret->stack_size = 0; | |
1591 | ret->movm_args = 0; | |
1592 | ret->movm_stack_size = 0; | |
1593 | ret->flags = 0; | |
1594 | ret->value = 0; | |
1595 | } | |
1596 | ||
1597 | return (struct bfd_hash_entry *) ret; | |
1598 | } | |
1599 | ||
1600 | /* Create an cr16 ELF linker hash table. */ | |
1601 | ||
1602 | static struct bfd_link_hash_table * | |
1603 | elf32_cr16_link_hash_table_create (bfd *abfd) | |
1604 | { | |
4dfe6ac6 | 1605 | struct elf_link_hash_table *ret; |
986f0783 | 1606 | size_t amt = sizeof (struct elf_link_hash_table); |
99706f30 | 1607 | |
7bf52ea2 | 1608 | ret = (struct elf_link_hash_table *) bfd_zmalloc (amt); |
4dfe6ac6 | 1609 | if (ret == (struct elf_link_hash_table *) NULL) |
99706f30 SR |
1610 | return NULL; |
1611 | ||
4dfe6ac6 | 1612 | if (!_bfd_elf_link_hash_table_init (ret, abfd, |
07d6d2b8 AM |
1613 | elf32_cr16_link_hash_newfunc, |
1614 | sizeof (struct elf32_cr16_link_hash_entry), | |
4dfe6ac6 | 1615 | GENERIC_ELF_DATA)) |
99706f30 SR |
1616 | { |
1617 | free (ret); | |
1618 | return NULL; | |
1619 | } | |
1620 | ||
4dfe6ac6 | 1621 | return &ret->root; |
99706f30 SR |
1622 | } |
1623 | ||
99706f30 SR |
1624 | static unsigned long |
1625 | elf_cr16_mach (flagword flags) | |
1626 | { | |
1627 | switch (flags) | |
1628 | { | |
db75b8f7 AM |
1629 | case EM_CR16: |
1630 | default: | |
99706f30 SR |
1631 | return bfd_mach_cr16; |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* The final processing done just before writing out a CR16 ELF object | |
1636 | file. This gets the CR16 architecture right based on the machine | |
1637 | number. */ | |
1638 | ||
0a1b45a2 | 1639 | static bool |
cc364be6 | 1640 | _bfd_cr16_elf_final_write_processing (bfd *abfd) |
99706f30 SR |
1641 | { |
1642 | unsigned long val; | |
1643 | switch (bfd_get_mach (abfd)) | |
1644 | { | |
db75b8f7 AM |
1645 | default: |
1646 | case bfd_mach_cr16: | |
1647 | val = EM_CR16; | |
1648 | break; | |
99706f30 | 1649 | } |
cc364be6 AM |
1650 | elf_elfheader (abfd)->e_flags |= val; |
1651 | return _bfd_elf_final_write_processing (abfd); | |
99706f30 SR |
1652 | } |
1653 | ||
1654 | ||
0a1b45a2 | 1655 | static bool |
99706f30 SR |
1656 | _bfd_cr16_elf_object_p (bfd *abfd) |
1657 | { | |
1658 | bfd_default_set_arch_mach (abfd, bfd_arch_cr16, | |
07d6d2b8 | 1659 | elf_cr16_mach (elf_elfheader (abfd)->e_flags)); |
0a1b45a2 | 1660 | return true; |
99706f30 SR |
1661 | } |
1662 | ||
1663 | /* Merge backend specific data from an object file to the output | |
1664 | object file when linking. */ | |
1665 | ||
0a1b45a2 | 1666 | static bool |
50e03d47 | 1667 | _bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
99706f30 | 1668 | { |
50e03d47 AM |
1669 | bfd *obfd = info->output_bfd; |
1670 | ||
99706f30 SR |
1671 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
1672 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 1673 | return true; |
99706f30 SR |
1674 | |
1675 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1676 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
1677 | { | |
1678 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
07d6d2b8 | 1679 | bfd_get_mach (ibfd))) |
0a1b45a2 | 1680 | return false; |
db75b8f7 | 1681 | } |
99706f30 | 1682 | |
0a1b45a2 | 1683 | return true; |
99706f30 SR |
1684 | } |
1685 | ||
1686 | ||
3d3d428f NC |
1687 | /* This function handles relaxing for the CR16. |
1688 | ||
1689 | There's quite a few relaxing opportunites available on the CR16: | |
1690 | ||
07d6d2b8 AM |
1691 | * bcond:24 -> bcond:16 1 byte |
1692 | * bcond:16 -> bcond:8 1 byte | |
1693 | * arithmetic imm32 -> arithmetic imm20 12 bits | |
1694 | * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits | |
3d3d428f NC |
1695 | |
1696 | Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */ | |
1697 | ||
0a1b45a2 | 1698 | static bool |
3d3d428f | 1699 | elf32_cr16_relax_section (bfd *abfd, asection *sec, |
0a1b45a2 | 1700 | struct bfd_link_info *link_info, bool *again) |
3d3d428f NC |
1701 | { |
1702 | Elf_Internal_Shdr *symtab_hdr; | |
1703 | Elf_Internal_Rela *internal_relocs; | |
1704 | Elf_Internal_Rela *irel, *irelend; | |
1705 | bfd_byte *contents = NULL; | |
1706 | Elf_Internal_Sym *isymbuf = NULL; | |
1707 | ||
1708 | /* Assume nothing changes. */ | |
0a1b45a2 | 1709 | *again = false; |
3d3d428f NC |
1710 | |
1711 | /* We don't have to do anything for a relocatable link, if | |
1712 | this section does not have relocs, or if this is not a | |
1713 | code section. */ | |
0e1862bb | 1714 | if (bfd_link_relocatable (link_info) |
3d3d428f NC |
1715 | || (sec->flags & SEC_RELOC) == 0 |
1716 | || sec->reloc_count == 0 | |
1717 | || (sec->flags & SEC_CODE) == 0) | |
0a1b45a2 | 1718 | return true; |
3d3d428f NC |
1719 | |
1720 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1721 | ||
1722 | /* Get a copy of the native relocations. */ | |
1723 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
07d6d2b8 | 1724 | link_info->keep_memory); |
3d3d428f NC |
1725 | if (internal_relocs == NULL) |
1726 | goto error_return; | |
1727 | ||
1728 | /* Walk through them looking for relaxing opportunities. */ | |
1729 | irelend = internal_relocs + sec->reloc_count; | |
1730 | for (irel = internal_relocs; irel < irelend; irel++) | |
1731 | { | |
1732 | bfd_vma symval; | |
1733 | ||
1734 | /* If this isn't something that can be relaxed, then ignore | |
07d6d2b8 | 1735 | this reloc. */ |
3d3d428f | 1736 | if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16 |
07d6d2b8 AM |
1737 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24 |
1738 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32 | |
1739 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20 | |
1740 | && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16) | |
1741 | continue; | |
3d3d428f NC |
1742 | |
1743 | /* Get the section contents if we haven't done so already. */ | |
1744 | if (contents == NULL) | |
07d6d2b8 AM |
1745 | { |
1746 | /* Get cached copy if it exists. */ | |
1747 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1748 | contents = elf_section_data (sec)->this_hdr.contents; | |
1749 | /* Go get them off disk. */ | |
1750 | else if (!bfd_malloc_and_get_section (abfd, sec, &contents)) | |
1751 | goto error_return; | |
1752 | } | |
3d3d428f NC |
1753 | |
1754 | /* Read this BFD's local symbols if we haven't done so already. */ | |
1755 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) | |
07d6d2b8 AM |
1756 | { |
1757 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1758 | if (isymbuf == NULL) | |
1759 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1760 | symtab_hdr->sh_info, 0, | |
1761 | NULL, NULL, NULL); | |
1762 | if (isymbuf == NULL) | |
1763 | goto error_return; | |
1764 | } | |
3d3d428f NC |
1765 | |
1766 | /* Get the value of the symbol referred to by the reloc. */ | |
1767 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
07d6d2b8 AM |
1768 | { |
1769 | /* A local symbol. */ | |
1770 | Elf_Internal_Sym *isym; | |
1771 | asection *sym_sec; | |
1772 | ||
1773 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
1774 | if (isym->st_shndx == SHN_UNDEF) | |
1775 | sym_sec = bfd_und_section_ptr; | |
1776 | else if (isym->st_shndx == SHN_ABS) | |
1777 | sym_sec = bfd_abs_section_ptr; | |
1778 | else if (isym->st_shndx == SHN_COMMON) | |
1779 | sym_sec = bfd_com_section_ptr; | |
1780 | else | |
1781 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1782 | symval = (isym->st_value | |
1783 | + sym_sec->output_section->vma | |
1784 | + sym_sec->output_offset); | |
1785 | } | |
3d3d428f | 1786 | else |
07d6d2b8 AM |
1787 | { |
1788 | unsigned long indx; | |
1789 | struct elf_link_hash_entry *h; | |
1790 | ||
1791 | /* An external symbol. */ | |
1792 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1793 | h = elf_sym_hashes (abfd)[indx]; | |
1794 | BFD_ASSERT (h != NULL); | |
1795 | ||
1796 | if (h->root.type != bfd_link_hash_defined | |
1797 | && h->root.type != bfd_link_hash_defweak) | |
1798 | /* This appears to be a reference to an undefined | |
1799 | symbol. Just ignore it--it will be caught by the | |
1800 | regular reloc processing. */ | |
1801 | continue; | |
1802 | ||
1803 | symval = (h->root.u.def.value | |
1804 | + h->root.u.def.section->output_section->vma | |
1805 | + h->root.u.def.section->output_offset); | |
1806 | } | |
3d3d428f NC |
1807 | |
1808 | /* For simplicity of coding, we are going to modify the section | |
07d6d2b8 AM |
1809 | contents, the section relocs, and the BFD symbol table. We |
1810 | must tell the rest of the code not to free up this | |
1811 | information. It would be possible to instead create a table | |
1812 | of changes which have to be made, as is done in coff-mips.c; | |
1813 | that would be more work, but would require less memory when | |
1814 | the linker is run. */ | |
3d3d428f NC |
1815 | |
1816 | /* Try to turn a 24 branch/call into a 16bit relative | |
07d6d2b8 | 1817 | branch/call. */ |
3d3d428f | 1818 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24) |
07d6d2b8 AM |
1819 | { |
1820 | bfd_vma value = symval; | |
1821 | ||
1822 | /* Deal with pc-relative gunk. */ | |
1823 | value -= (sec->output_section->vma + sec->output_offset); | |
1824 | value -= irel->r_offset; | |
1825 | value += irel->r_addend; | |
1826 | ||
1827 | /* See if the value will fit in 16 bits, note the high value is | |
1828 | 0xfffe + 2 as the target will be two bytes closer if we are | |
1829 | able to relax. */ | |
1830 | if ((long) value < 0x10000 && (long) value > -0x10002) | |
1831 | { | |
1832 | unsigned int code; | |
1833 | ||
1834 | /* Get the opcode. */ | |
db75b8f7 AM |
1835 | code = (unsigned int) bfd_get_32 (abfd, |
1836 | contents + irel->r_offset); | |
07d6d2b8 AM |
1837 | |
1838 | /* Verify it's a 'bcond' and fix the opcode. */ | |
1839 | if ((code & 0xffff) == 0x0010) | |
db75b8f7 AM |
1840 | bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), |
1841 | contents + irel->r_offset); | |
07d6d2b8 AM |
1842 | else |
1843 | continue; | |
1844 | ||
1845 | /* Note that we've changed the relocs, section contents, etc. */ | |
1846 | elf_section_data (sec)->relocs = internal_relocs; | |
1847 | elf_section_data (sec)->this_hdr.contents = contents; | |
1848 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1849 | ||
1850 | /* Fix the relocation's type. */ | |
1851 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1852 | R_CR16_DISP16); | |
1853 | ||
1854 | /* Delete two bytes of data. */ | |
1855 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
db75b8f7 | 1856 | irel->r_offset + 2, 2)) |
07d6d2b8 AM |
1857 | goto error_return; |
1858 | ||
1859 | /* That will change things, so, we should relax again. | |
1860 | Note that this is not required, and it may be slow. */ | |
0a1b45a2 | 1861 | *again = true; |
07d6d2b8 AM |
1862 | } |
1863 | } | |
3d3d428f | 1864 | |
99706f30 | 1865 | /* Try to turn a 16bit pc-relative branch into an |
07d6d2b8 | 1866 | 8bit pc-relative branch. */ |
3d3d428f | 1867 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16) |
07d6d2b8 AM |
1868 | { |
1869 | bfd_vma value = symval; | |
1870 | ||
1871 | /* Deal with pc-relative gunk. */ | |
1872 | value -= (sec->output_section->vma + sec->output_offset); | |
1873 | value -= irel->r_offset; | |
1874 | value += irel->r_addend; | |
1875 | ||
1876 | /* See if the value will fit in 8 bits, note the high value is | |
1877 | 0xfc + 2 as the target will be two bytes closer if we are | |
1878 | able to relax. */ | |
1879 | /*if ((long) value < 0x1fa && (long) value > -0x100) REVISIT:range */ | |
1880 | if ((long) value < 0xfa && (long) value > -0x100) | |
1881 | { | |
1882 | unsigned short code; | |
1883 | ||
1884 | /* Get the opcode. */ | |
db75b8f7 | 1885 | code = bfd_get_16 (abfd, contents + irel->r_offset); |
07d6d2b8 AM |
1886 | |
1887 | /* Verify it's a 'bcond' and fix the opcode. */ | |
1888 | if ((code & 0xff0f) == 0x1800) | |
1889 | bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset); | |
1890 | else | |
1891 | continue; | |
1892 | ||
1893 | /* Note that we've changed the relocs, section contents, etc. */ | |
1894 | elf_section_data (sec)->relocs = internal_relocs; | |
1895 | elf_section_data (sec)->this_hdr.contents = contents; | |
1896 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1897 | ||
1898 | /* Fix the relocation's type. */ | |
1899 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1900 | R_CR16_DISP8); | |
1901 | ||
1902 | /* Delete two bytes of data. */ | |
1903 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
db75b8f7 | 1904 | irel->r_offset + 2, 2)) |
07d6d2b8 AM |
1905 | goto error_return; |
1906 | ||
1907 | /* That will change things, so, we should relax again. | |
1908 | Note that this is not required, and it may be slow. */ | |
0a1b45a2 | 1909 | *again = true; |
07d6d2b8 AM |
1910 | } |
1911 | } | |
3d3d428f | 1912 | |
99706f30 | 1913 | /* Try to turn a 32-bit IMM address into a 20/16-bit IMM address */ |
3d3d428f | 1914 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32) |
07d6d2b8 AM |
1915 | { |
1916 | bfd_vma value = symval; | |
1917 | unsigned short is_add_mov = 0; | |
1918 | bfd_vma value1 = 0; | |
1919 | ||
1920 | /* Get the existing value from the mcode */ | |
db75b8f7 AM |
1921 | value1 = bfd_get_32 (abfd, contents + irel->r_offset + 2); |
1922 | value1 = (value1 >> 16) | ((value1 & 0xffff) << 16); | |
07d6d2b8 AM |
1923 | |
1924 | /* See if the value will fit in 20 bits. */ | |
1925 | if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 0) | |
1926 | { | |
1927 | unsigned short code; | |
1928 | ||
1929 | /* Get the opcode. */ | |
db75b8f7 | 1930 | code = bfd_get_16 (abfd, contents + irel->r_offset); |
07d6d2b8 AM |
1931 | |
1932 | /* Verify it's a 'arithmetic ADDD or MOVD instruction'. | |
1933 | For ADDD and MOVD only, convert to IMM32 -> IMM20. */ | |
1934 | ||
1935 | if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020)) | |
db75b8f7 | 1936 | is_add_mov = 1; |
07d6d2b8 AM |
1937 | |
1938 | if (is_add_mov) | |
1939 | { | |
1940 | /* Note that we've changed the relocs, section contents, | |
1941 | etc. */ | |
1942 | elf_section_data (sec)->relocs = internal_relocs; | |
1943 | elf_section_data (sec)->this_hdr.contents = contents; | |
1944 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1945 | ||
1946 | /* Fix the opcode. */ | |
1947 | if ((code & 0xfff0) == 0x0070) /* For movd. */ | |
1948 | bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1); | |
1949 | else /* code == 0x0020 for addd. */ | |
1950 | bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1); | |
1951 | ||
1952 | bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset); | |
1953 | ||
1954 | /* If existing value is nagavive adjust approriately | |
1955 | place the 16-20bits (ie 4 bit) in new opcode, | |
1956 | as the 0xffffxxxx, the higher 2 byte values removed. */ | |
1957 | if (value1 & 0x80000000) | |
db75b8f7 AM |
1958 | bfd_put_8 (abfd, |
1959 | (0x0f | (bfd_get_8 (abfd, | |
1960 | contents + irel->r_offset))), | |
1961 | contents + irel->r_offset); | |
07d6d2b8 | 1962 | else |
db75b8f7 AM |
1963 | bfd_put_8 (abfd, |
1964 | (((value1 >> 16) & 0xf) | |
1965 | | (bfd_get_8 (abfd, | |
1966 | contents + irel->r_offset))), | |
1967 | contents + irel->r_offset); | |
07d6d2b8 AM |
1968 | |
1969 | /* Fix the relocation's type. */ | |
1970 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1971 | R_CR16_IMM20); | |
1972 | ||
1973 | /* Delete two bytes of data. */ | |
1974 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
1975 | irel->r_offset + 2, 2)) | |
1976 | goto error_return; | |
1977 | ||
1978 | /* That will change things, so, we should relax again. | |
1979 | Note that this is not required, and it may be slow. */ | |
0a1b45a2 | 1980 | *again = true; |
07d6d2b8 AM |
1981 | } |
1982 | } | |
1983 | ||
1984 | /* See if the value will fit in 16 bits. */ | |
1985 | if ((!is_add_mov) | |
1986 | && ((long)(value + value1) < 0x7fff && (long)(value + value1) > 0)) | |
1987 | { | |
1988 | unsigned short code; | |
1989 | ||
1990 | /* Get the opcode. */ | |
db75b8f7 | 1991 | code = bfd_get_16 (abfd, contents + irel->r_offset); |
07d6d2b8 AM |
1992 | |
1993 | /* Note that we've changed the relocs, section contents, etc. */ | |
1994 | elf_section_data (sec)->relocs = internal_relocs; | |
1995 | elf_section_data (sec)->this_hdr.contents = contents; | |
1996 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
1997 | ||
1998 | /* Fix the opcode. */ | |
1999 | if ((code & 0xf0) == 0x70) /* For movd. */ | |
2000 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1); | |
2001 | else if ((code & 0xf0) == 0x20) /* For addd. */ | |
2002 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1); | |
2003 | else if ((code & 0xf0) == 0x90) /* For cmpd. */ | |
2004 | bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1); | |
2005 | else | |
2006 | continue; | |
2007 | ||
2008 | bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset); | |
2009 | ||
2010 | /* If existing value is nagavive adjust approriately | |
2011 | place the 12-16bits (ie 4 bit) in new opcode, | |
2012 | as the 0xfffffxxx, the higher 2 byte values removed. */ | |
2013 | if (value1 & 0x80000000) | |
db75b8f7 AM |
2014 | bfd_put_8 (abfd, |
2015 | (0x0f | (bfd_get_8 (abfd, | |
2016 | contents + irel->r_offset))), | |
2017 | contents + irel->r_offset); | |
07d6d2b8 AM |
2018 | else |
2019 | bfd_put_16 (abfd, value1, contents + irel->r_offset + 2); | |
2020 | ||
2021 | ||
2022 | /* Fix the relocation's type. */ | |
2023 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2024 | R_CR16_IMM16); | |
2025 | ||
2026 | /* Delete two bytes of data. */ | |
2027 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
2028 | irel->r_offset + 2, 2)) | |
2029 | goto error_return; | |
2030 | ||
2031 | /* That will change things, so, we should relax again. | |
2032 | Note that this is not required, and it may be slow. */ | |
0a1b45a2 | 2033 | *again = true; |
07d6d2b8 AM |
2034 | } |
2035 | } | |
7fac7ff4 | 2036 | |
99706f30 SR |
2037 | #if 0 |
2038 | /* Try to turn a 16bit immediate address into a 4bit | |
07d6d2b8 | 2039 | immediate address. */ |
68ffbac6 | 2040 | if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20) |
07d6d2b8 AM |
2041 | || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16)) |
2042 | { | |
2043 | bfd_vma value = symval; | |
2044 | bfd_vma value1 = 0; | |
2045 | ||
2046 | /* Get the existing value from the mcode */ | |
2047 | value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff)); | |
2048 | ||
2049 | if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20) | |
2050 | { | |
db75b8f7 AM |
2051 | value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) |
2052 | & 0xf000) << 0x4); | |
07d6d2b8 AM |
2053 | } |
2054 | ||
2055 | /* See if the value will fit in 4 bits. */ | |
2056 | if ((((long) (value + value1)) < 0xf) | |
2057 | && (((long) (value + value1)) > 0)) | |
2058 | { | |
2059 | unsigned short code; | |
2060 | ||
2061 | /* Get the opcode. */ | |
db75b8f7 | 2062 | code = bfd_get_16 (abfd, contents + irel->r_offset); |
07d6d2b8 AM |
2063 | |
2064 | /* Note that we've changed the relocs, section contents, etc. */ | |
2065 | elf_section_data (sec)->relocs = internal_relocs; | |
2066 | elf_section_data (sec)->this_hdr.contents = contents; | |
2067 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
2068 | ||
2069 | /* Fix the opcode. */ | |
2070 | if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500)) | |
2071 | { | |
2072 | if ((code & 0x0f00) == 0x0400) /* For movd imm20. */ | |
2073 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset); | |
2074 | else /* For addd imm20. */ | |
2075 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset); | |
db75b8f7 AM |
2076 | bfd_put_8 (abfd, (code & 0xf0) >> 4, |
2077 | contents + irel->r_offset + 1); | |
07d6d2b8 AM |
2078 | } |
2079 | else | |
2080 | { | |
2081 | if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */ | |
2082 | bfd_put_8 (abfd, 0x56, contents + irel->r_offset); | |
2083 | else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */ | |
2084 | bfd_put_8 (abfd, 0x54, contents + irel->r_offset); | |
2085 | else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */ | |
2086 | bfd_put_8 (abfd, 0x58, contents + irel->r_offset); | |
2087 | else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */ | |
2088 | bfd_put_8 (abfd, 0x5A, contents + irel->r_offset); | |
2089 | else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */ | |
2090 | bfd_put_8 (abfd, 0x60, contents + irel->r_offset); | |
2091 | else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */ | |
2092 | bfd_put_8 (abfd, 0x30, contents + irel->r_offset); | |
2093 | else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */ | |
2094 | bfd_put_8 (abfd, 0x2C, contents + irel->r_offset); | |
2095 | else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */ | |
2096 | bfd_put_8 (abfd, 0x32, contents + irel->r_offset); | |
2097 | else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */ | |
2098 | bfd_put_8 (abfd, 0x38, contents + irel->r_offset); | |
2099 | else if ((code & 0xfff0) == 0x3Cb0) /* For subcb imm16. */ | |
2100 | bfd_put_8 (abfd, 0x3C, contents + irel->r_offset); | |
2101 | else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */ | |
2102 | bfd_put_8 (abfd, 0x3F, contents + irel->r_offset); | |
2103 | else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */ | |
2104 | bfd_put_8 (abfd, 0x3A, contents + irel->r_offset); | |
2105 | else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */ | |
2106 | bfd_put_8 (abfd, 0x50, contents + irel->r_offset); | |
2107 | else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */ | |
2108 | bfd_put_8 (abfd, 0x52, contents + irel->r_offset); | |
2109 | else | |
2110 | continue; | |
2111 | ||
2112 | bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1); | |
2113 | } | |
2114 | ||
2115 | /* Fix the relocation's type. */ | |
2116 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2117 | R_CR16_IMM4); | |
2118 | ||
2119 | /* Delete two bytes of data. */ | |
2120 | if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec, | |
2121 | irel->r_offset + 2, 2)) | |
2122 | goto error_return; | |
2123 | ||
2124 | /* That will change things, so, we should relax again. | |
2125 | Note that this is not required, and it may be slow. */ | |
0a1b45a2 | 2126 | *again = true; |
07d6d2b8 AM |
2127 | } |
2128 | } | |
99706f30 | 2129 | #endif |
3d3d428f NC |
2130 | } |
2131 | ||
2132 | if (isymbuf != NULL | |
2133 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
2134 | { | |
2135 | if (! link_info->keep_memory) | |
07d6d2b8 | 2136 | free (isymbuf); |
3d3d428f | 2137 | else |
db75b8f7 AM |
2138 | /* Cache the symbols for elf_link_input_bfd. */ |
2139 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
3d3d428f NC |
2140 | } |
2141 | ||
2142 | if (contents != NULL | |
2143 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2144 | { | |
2145 | if (! link_info->keep_memory) | |
07d6d2b8 | 2146 | free (contents); |
3d3d428f | 2147 | else |
db75b8f7 AM |
2148 | /* Cache the section contents for elf_link_input_bfd. */ |
2149 | elf_section_data (sec)->this_hdr.contents = contents; | |
68ffbac6 | 2150 | |
3d3d428f NC |
2151 | } |
2152 | ||
c9594989 | 2153 | if (elf_section_data (sec)->relocs != internal_relocs) |
3d3d428f NC |
2154 | free (internal_relocs); |
2155 | ||
0a1b45a2 | 2156 | return true; |
3d3d428f NC |
2157 | |
2158 | error_return: | |
c9594989 | 2159 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
3d3d428f | 2160 | free (isymbuf); |
c9594989 | 2161 | if (elf_section_data (sec)->this_hdr.contents != contents) |
3d3d428f | 2162 | free (contents); |
c9594989 | 2163 | if (elf_section_data (sec)->relocs != internal_relocs) |
3d3d428f NC |
2164 | free (internal_relocs); |
2165 | ||
0a1b45a2 | 2166 | return false; |
3d3d428f NC |
2167 | } |
2168 | ||
2169 | static asection * | |
2170 | elf32_cr16_gc_mark_hook (asection *sec, | |
07d6d2b8 AM |
2171 | struct bfd_link_info *info, |
2172 | Elf_Internal_Rela *rel, | |
2173 | struct elf_link_hash_entry *h, | |
2174 | Elf_Internal_Sym *sym) | |
3d3d428f | 2175 | { |
fb34365b | 2176 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
3d3d428f NC |
2177 | } |
2178 | ||
99706f30 SR |
2179 | /* Create dynamic sections when linking against a dynamic object. */ |
2180 | ||
0a1b45a2 | 2181 | static bool |
99706f30 SR |
2182 | _bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
2183 | { | |
2184 | flagword flags; | |
2185 | asection * s; | |
2186 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); | |
ce558b89 | 2187 | struct elf_link_hash_table *htab = elf_hash_table (info); |
99706f30 SR |
2188 | int ptralign = 0; |
2189 | ||
2190 | switch (bed->s->arch_size) | |
2191 | { | |
2192 | case 16: | |
2193 | ptralign = 1; | |
2194 | break; | |
2195 | ||
2196 | case 32: | |
2197 | ptralign = 2; | |
2198 | break; | |
2199 | ||
2200 | default: | |
2201 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 2202 | return false; |
99706f30 SR |
2203 | } |
2204 | ||
2205 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
2206 | .rel[a].bss sections. */ | |
2207 | ||
2208 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 2209 | | SEC_LINKER_CREATED); |
99706f30 | 2210 | |
3d4d4302 AM |
2211 | s = bfd_make_section_anyway_with_flags (abfd, |
2212 | (bed->default_use_rela_p | |
2213 | ? ".rela.plt" : ".rel.plt"), | |
2214 | flags | SEC_READONLY); | |
ce558b89 | 2215 | htab->srelplt = s; |
99706f30 | 2216 | if (s == NULL |
fd361982 | 2217 | || !bfd_set_section_alignment (s, ptralign)) |
0a1b45a2 | 2218 | return false; |
99706f30 SR |
2219 | |
2220 | if (! _bfd_cr16_elf_create_got_section (abfd, info)) | |
0a1b45a2 | 2221 | return false; |
99706f30 | 2222 | |
99706f30 SR |
2223 | if (bed->want_dynbss) |
2224 | { | |
2225 | /* The .dynbss section is a place to put symbols which are defined | |
07d6d2b8 AM |
2226 | by dynamic objects, are referenced by regular objects, and are |
2227 | not functions. We must allocate space for them in the process | |
2228 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2229 | initialize them at run time. The linker script puts the .dynbss | |
2230 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2231 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2232 | SEC_ALLOC | SEC_LINKER_CREATED); | |
99706f30 | 2233 | if (s == NULL) |
0a1b45a2 | 2234 | return false; |
99706f30 SR |
2235 | |
2236 | /* The .rel[a].bss section holds copy relocs. This section is not | |
07d6d2b8 AM |
2237 | normally needed. We need to create it here, though, so that the |
2238 | linker will map it to an output section. We can't just create it | |
2239 | only if we need it, because we will not know whether we need it | |
2240 | until we have seen all the input files, and the first time the | |
2241 | main linker code calls BFD after examining all the input files | |
2242 | (size_dynamic_sections) the input sections have already been | |
2243 | mapped to the output sections. If the section turns out not to | |
2244 | be needed, we can discard it later. We will never need this | |
2245 | section when generating a shared object, since they do not use | |
2246 | copy relocs. */ | |
0e1862bb | 2247 | if (! bfd_link_executable (info)) |
07d6d2b8 AM |
2248 | { |
2249 | s = bfd_make_section_anyway_with_flags (abfd, | |
3d4d4302 AM |
2250 | (bed->default_use_rela_p |
2251 | ? ".rela.bss" : ".rel.bss"), | |
2252 | flags | SEC_READONLY); | |
07d6d2b8 | 2253 | if (s == NULL |
fd361982 | 2254 | || !bfd_set_section_alignment (s, ptralign)) |
0a1b45a2 | 2255 | return false; |
07d6d2b8 | 2256 | } |
99706f30 SR |
2257 | } |
2258 | ||
0a1b45a2 | 2259 | return true; |
99706f30 SR |
2260 | } |
2261 | \f | |
2262 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2263 | regular object. The current definition is in some section of the | |
2264 | dynamic object, but we're not including those sections. We have to | |
2265 | change the definition to something the rest of the link can | |
2266 | understand. */ | |
2267 | ||
0a1b45a2 | 2268 | static bool |
99706f30 | 2269 | _bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info, |
07d6d2b8 | 2270 | struct elf_link_hash_entry * h) |
99706f30 SR |
2271 | { |
2272 | bfd * dynobj; | |
2273 | asection * s; | |
2274 | ||
2275 | dynobj = elf_hash_table (info)->dynobj; | |
2276 | ||
2277 | /* Make sure we know what is going on here. */ | |
2278 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
2279 | && (h->needs_plt |
2280 | || h->is_weakalias | |
2281 | || (h->def_dynamic | |
2282 | && h->ref_regular | |
2283 | && !h->def_regular))); | |
99706f30 SR |
2284 | |
2285 | /* If this is a function, put it in the procedure linkage table. We | |
2286 | will fill in the contents of the procedure linkage table later, | |
2287 | when we know the address of the .got section. */ | |
2288 | if (h->type == STT_FUNC | |
2289 | || h->needs_plt) | |
2290 | { | |
0e1862bb | 2291 | if (! bfd_link_executable (info) |
07d6d2b8 AM |
2292 | && !h->def_dynamic |
2293 | && !h->ref_dynamic) | |
2294 | { | |
2295 | /* This case can occur if we saw a PLT reloc in an input | |
2296 | file, but the symbol was never referred to by a dynamic | |
2297 | object. In such a case, we don't actually need to build | |
2298 | a procedure linkage table, and we can just do a REL32 | |
2299 | reloc instead. */ | |
2300 | BFD_ASSERT (h->needs_plt); | |
0a1b45a2 | 2301 | return true; |
07d6d2b8 | 2302 | } |
99706f30 SR |
2303 | |
2304 | /* Make sure this symbol is output as a dynamic symbol. */ | |
2305 | if (h->dynindx == -1) | |
07d6d2b8 AM |
2306 | { |
2307 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 2308 | return false; |
07d6d2b8 | 2309 | } |
99706f30 SR |
2310 | |
2311 | /* We also need to make an entry in the .got.plt section, which | |
07d6d2b8 | 2312 | will be placed in the .got section by the linker script. */ |
99706f30 | 2313 | |
ce558b89 | 2314 | s = elf_hash_table (info)->sgotplt; |
99706f30 SR |
2315 | BFD_ASSERT (s != NULL); |
2316 | s->size += 4; | |
2317 | ||
2318 | /* We also need to make an entry in the .rela.plt section. */ | |
2319 | ||
ce558b89 | 2320 | s = elf_hash_table (info)->srelplt; |
99706f30 SR |
2321 | BFD_ASSERT (s != NULL); |
2322 | s->size += sizeof (Elf32_External_Rela); | |
2323 | ||
0a1b45a2 | 2324 | return true; |
99706f30 SR |
2325 | } |
2326 | ||
2327 | /* If this is a weak symbol, and there is a real definition, the | |
2328 | processor independent code will have arranged for us to see the | |
2329 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2330 | if (h->is_weakalias) |
99706f30 | 2331 | { |
60d67dc8 AM |
2332 | struct elf_link_hash_entry *def = weakdef (h); |
2333 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2334 | h->root.u.def.section = def->root.u.def.section; | |
2335 | h->root.u.def.value = def->root.u.def.value; | |
0a1b45a2 | 2336 | return true; |
99706f30 SR |
2337 | } |
2338 | ||
2339 | /* This is a reference to a symbol defined by a dynamic object which | |
2340 | is not a function. */ | |
2341 | ||
2342 | /* If we are creating a shared library, we must presume that the | |
2343 | only references to the symbol are via the global offset table. | |
2344 | For such cases we need not do anything here; the relocations will | |
2345 | be handled correctly by relocate_section. */ | |
0e1862bb | 2346 | if (bfd_link_executable (info)) |
0a1b45a2 | 2347 | return true; |
99706f30 SR |
2348 | |
2349 | /* If there are no references to this symbol that do not use the | |
2350 | GOT, we don't need to generate a copy reloc. */ | |
2351 | if (!h->non_got_ref) | |
0a1b45a2 | 2352 | return true; |
99706f30 | 2353 | |
99706f30 SR |
2354 | /* We must allocate the symbol in our .dynbss section, which will |
2355 | become part of the .bss section of the executable. There will be | |
2356 | an entry for this symbol in the .dynsym section. The dynamic | |
2357 | object will contain position independent code, so all references | |
2358 | from the dynamic object to this symbol will go through the global | |
2359 | offset table. The dynamic linker will use the .dynsym entry to | |
2360 | determine the address it must put in the global offset table, so | |
2361 | both the dynamic object and the regular object will refer to the | |
2362 | same memory location for the variable. */ | |
2363 | ||
3d4d4302 | 2364 | s = bfd_get_linker_section (dynobj, ".dynbss"); |
99706f30 SR |
2365 | BFD_ASSERT (s != NULL); |
2366 | ||
2367 | /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to | |
2368 | copy the initial value out of the dynamic object and into the | |
2369 | runtime process image. We need to remember the offset into the | |
2370 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 2371 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
99706f30 SR |
2372 | { |
2373 | asection * srel; | |
2374 | ||
3d4d4302 | 2375 | srel = bfd_get_linker_section (dynobj, ".rela.bss"); |
99706f30 SR |
2376 | BFD_ASSERT (srel != NULL); |
2377 | srel->size += sizeof (Elf32_External_Rela); | |
2378 | h->needs_copy = 1; | |
2379 | } | |
2380 | ||
6cabe1ea | 2381 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
99706f30 SR |
2382 | } |
2383 | ||
2384 | /* Set the sizes of the dynamic sections. */ | |
2385 | ||
0a1b45a2 | 2386 | static bool |
99706f30 | 2387 | _bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd, |
07d6d2b8 | 2388 | struct bfd_link_info * info) |
99706f30 SR |
2389 | { |
2390 | bfd * dynobj; | |
2391 | asection * s; | |
0a1b45a2 | 2392 | bool relocs; |
99706f30 SR |
2393 | |
2394 | dynobj = elf_hash_table (info)->dynobj; | |
2395 | BFD_ASSERT (dynobj != NULL); | |
2396 | ||
2397 | if (elf_hash_table (info)->dynamic_sections_created) | |
2398 | { | |
2399 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2400 | if (bfd_link_executable (info) && !info->nointerp) |
07d6d2b8 | 2401 | { |
99706f30 | 2402 | #if 0 |
07d6d2b8 AM |
2403 | s = bfd_get_linker_section (dynobj, ".interp"); |
2404 | BFD_ASSERT (s != NULL); | |
2405 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2406 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
99706f30 | 2407 | #endif |
07d6d2b8 | 2408 | } |
99706f30 SR |
2409 | } |
2410 | else | |
2411 | { | |
2412 | /* We may have created entries in the .rela.got section. | |
07d6d2b8 AM |
2413 | However, if we are not creating the dynamic sections, we will |
2414 | not actually use these entries. Reset the size of .rela.got, | |
2415 | which will cause it to get stripped from the output file | |
2416 | below. */ | |
ce558b89 | 2417 | s = elf_hash_table (info)->srelgot; |
99706f30 | 2418 | if (s != NULL) |
07d6d2b8 | 2419 | s->size = 0; |
99706f30 SR |
2420 | } |
2421 | ||
2422 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2423 | determined the sizes of the various dynamic sections. Allocate | |
2424 | memory for them. */ | |
0a1b45a2 | 2425 | relocs = false; |
99706f30 SR |
2426 | for (s = dynobj->sections; s != NULL; s = s->next) |
2427 | { | |
2428 | const char * name; | |
2429 | ||
2430 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2431 | continue; |
99706f30 SR |
2432 | |
2433 | /* It's OK to base decisions on the section name, because none | |
07d6d2b8 | 2434 | of the dynobj section names depend upon the input files. */ |
fd361982 | 2435 | name = bfd_section_name (s); |
99706f30 SR |
2436 | |
2437 | if (strcmp (name, ".plt") == 0) | |
07d6d2b8 AM |
2438 | { |
2439 | /* Remember whether there is a PLT. */ | |
3084d7a2 | 2440 | ; |
07d6d2b8 | 2441 | } |
08dedd66 | 2442 | else if (startswith (name, ".rela")) |
07d6d2b8 AM |
2443 | { |
2444 | if (s->size != 0) | |
2445 | { | |
07d6d2b8 AM |
2446 | /* Remember whether there are any reloc sections other |
2447 | than .rela.plt. */ | |
2448 | if (strcmp (name, ".rela.plt") != 0) | |
0a1b45a2 | 2449 | relocs = true; |
07d6d2b8 AM |
2450 | |
2451 | /* We use the reloc_count field as a counter if we need | |
2452 | to copy relocs into the output file. */ | |
2453 | s->reloc_count = 0; | |
2454 | } | |
2455 | } | |
08dedd66 | 2456 | else if (! startswith (name, ".got") |
07d6d2b8 AM |
2457 | && strcmp (name, ".dynbss") != 0) |
2458 | /* It's not one of our sections, so don't allocate space. */ | |
2459 | continue; | |
99706f30 SR |
2460 | |
2461 | if (s->size == 0) | |
07d6d2b8 AM |
2462 | { |
2463 | /* If we don't need this section, strip it from the | |
2464 | output file. This is mostly to handle .rela.bss and | |
2465 | .rela.plt. We must create both sections in | |
2466 | create_dynamic_sections, because they must be created | |
2467 | before the linker maps input sections to output | |
2468 | sections. The linker does that before | |
2469 | adjust_dynamic_symbol is called, and it is that | |
2470 | function which decides whether anything needs to go | |
2471 | into these sections. */ | |
2472 | s->flags |= SEC_EXCLUDE; | |
2473 | continue; | |
2474 | } | |
2475 | ||
db75b8f7 AM |
2476 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2477 | continue; | |
99706f30 SR |
2478 | |
2479 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2480 | here in case unused entries are not reclaimed before the |
2481 | section's contents are written out. This should not happen, | |
2482 | but this way if it does, we get a R_CR16_NONE reloc | |
2483 | instead of garbage. */ | |
99706f30 SR |
2484 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
2485 | if (s->contents == NULL) | |
0a1b45a2 | 2486 | return false; |
99706f30 SR |
2487 | } |
2488 | ||
3084d7a2 | 2489 | return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); |
99706f30 SR |
2490 | } |
2491 | ||
2492 | /* Finish up dynamic symbol handling. We set the contents of various | |
2493 | dynamic sections here. */ | |
2494 | ||
0a1b45a2 | 2495 | static bool |
99706f30 | 2496 | _bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd, |
07d6d2b8 AM |
2497 | struct bfd_link_info * info, |
2498 | struct elf_link_hash_entry * h, | |
2499 | Elf_Internal_Sym * sym) | |
99706f30 SR |
2500 | { |
2501 | bfd * dynobj; | |
2502 | ||
2503 | dynobj = elf_hash_table (info)->dynobj; | |
2504 | ||
2505 | if (h->got.offset != (bfd_vma) -1) | |
2506 | { | |
07d6d2b8 AM |
2507 | asection * sgot; |
2508 | asection * srel; | |
99706f30 SR |
2509 | Elf_Internal_Rela rel; |
2510 | ||
2511 | /* This symbol has an entry in the global offset table. Set it up. */ | |
2512 | ||
ce558b89 AM |
2513 | sgot = elf_hash_table (info)->sgot; |
2514 | srel = elf_hash_table (info)->srelgot; | |
99706f30 SR |
2515 | BFD_ASSERT (sgot != NULL && srel != NULL); |
2516 | ||
2517 | rel.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
2518 | + sgot->output_offset |
2519 | + (h->got.offset & ~1)); | |
99706f30 SR |
2520 | |
2521 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
2522 | locally, we just want to emit a RELATIVE reloc. Likewise if |
2523 | the symbol was forced to be local because of a version file. | |
2524 | The entry in the global offset table will already have been | |
2525 | initialized in the relocate_section function. */ | |
0e1862bb | 2526 | if (bfd_link_executable (info) |
07d6d2b8 AM |
2527 | && (info->symbolic || h->dynindx == -1) |
2528 | && h->def_regular) | |
2529 | { | |
2530 | rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20); | |
2531 | rel.r_addend = (h->root.u.def.value | |
2532 | + h->root.u.def.section->output_section->vma | |
2533 | + h->root.u.def.section->output_offset); | |
2534 | } | |
99706f30 | 2535 | else |
07d6d2b8 AM |
2536 | { |
2537 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
2538 | rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20); | |
2539 | rel.r_addend = 0; | |
2540 | } | |
99706f30 SR |
2541 | |
2542 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 AM |
2543 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents |
2544 | + srel->reloc_count)); | |
99706f30 SR |
2545 | ++ srel->reloc_count; |
2546 | } | |
2547 | ||
2548 | if (h->needs_copy) | |
2549 | { | |
07d6d2b8 | 2550 | asection * s; |
99706f30 SR |
2551 | Elf_Internal_Rela rel; |
2552 | ||
2553 | /* This symbol needs a copy reloc. Set it up. */ | |
2554 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
2555 | && (h->root.type == bfd_link_hash_defined |
2556 | || h->root.type == bfd_link_hash_defweak)); | |
99706f30 | 2557 | |
3d4d4302 | 2558 | s = bfd_get_linker_section (dynobj, ".rela.bss"); |
99706f30 SR |
2559 | BFD_ASSERT (s != NULL); |
2560 | ||
2561 | rel.r_offset = (h->root.u.def.value | |
07d6d2b8 AM |
2562 | + h->root.u.def.section->output_section->vma |
2563 | + h->root.u.def.section->output_offset); | |
99706f30 SR |
2564 | rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20); |
2565 | rel.r_addend = 0; | |
2566 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 AM |
2567 | (bfd_byte *) ((Elf32_External_Rela *) s->contents |
2568 | + s->reloc_count)); | |
db75b8f7 | 2569 | ++ s->reloc_count; |
99706f30 SR |
2570 | } |
2571 | ||
2572 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 2573 | if (h == elf_hash_table (info)->hdynamic |
99706f30 SR |
2574 | || h == elf_hash_table (info)->hgot) |
2575 | sym->st_shndx = SHN_ABS; | |
2576 | ||
0a1b45a2 | 2577 | return true; |
99706f30 SR |
2578 | } |
2579 | ||
2580 | /* Finish up the dynamic sections. */ | |
2581 | ||
0a1b45a2 | 2582 | static bool |
99706f30 | 2583 | _bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd, |
07d6d2b8 | 2584 | struct bfd_link_info * info) |
99706f30 SR |
2585 | { |
2586 | bfd * dynobj; | |
2587 | asection * sgot; | |
2588 | asection * sdyn; | |
2589 | ||
2590 | dynobj = elf_hash_table (info)->dynobj; | |
2591 | ||
ce558b89 | 2592 | sgot = elf_hash_table (info)->sgotplt; |
99706f30 | 2593 | BFD_ASSERT (sgot != NULL); |
3d4d4302 | 2594 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
99706f30 SR |
2595 | |
2596 | if (elf_hash_table (info)->dynamic_sections_created) | |
2597 | { | |
2598 | Elf32_External_Dyn * dyncon; | |
2599 | Elf32_External_Dyn * dynconend; | |
2600 | ||
2601 | BFD_ASSERT (sdyn != NULL); | |
2602 | ||
2603 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
2604 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
2605 | ||
2606 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
2607 | { |
2608 | Elf_Internal_Dyn dyn; | |
2609 | asection * s; | |
2610 | ||
2611 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2612 | ||
2613 | switch (dyn.d_tag) | |
2614 | { | |
2615 | default: | |
2616 | break; | |
2617 | ||
2618 | case DT_PLTGOT: | |
2619 | s = elf_hash_table (info)->sgotplt; | |
2620 | goto get_vma; | |
2621 | ||
2622 | case DT_JMPREL: | |
2623 | s = elf_hash_table (info)->srelplt; | |
2624 | get_vma: | |
2625 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
2626 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2627 | break; | |
2628 | ||
2629 | case DT_PLTRELSZ: | |
2630 | s = elf_hash_table (info)->srelplt; | |
2631 | dyn.d_un.d_val = s->size; | |
2632 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2633 | break; | |
2634 | } | |
2635 | } | |
99706f30 SR |
2636 | |
2637 | } | |
2638 | ||
2639 | /* Fill in the first three entries in the global offset table. */ | |
2640 | if (sgot->size > 0) | |
2641 | { | |
2642 | if (sdyn == NULL) | |
07d6d2b8 | 2643 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
99706f30 | 2644 | else |
07d6d2b8 AM |
2645 | bfd_put_32 (output_bfd, |
2646 | sdyn->output_section->vma + sdyn->output_offset, | |
2647 | sgot->contents); | |
99706f30 SR |
2648 | } |
2649 | ||
2650 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
2651 | ||
0a1b45a2 | 2652 | return true; |
99706f30 SR |
2653 | } |
2654 | ||
2655 | /* Given a .data.rel section and a .emreloc in-memory section, store | |
2656 | relocation information into the .emreloc section which can be | |
2657 | used at runtime to relocate the section. This is called by the | |
2658 | linker when the --embedded-relocs switch is used. This is called | |
2659 | after the add_symbols entry point has been called for all the | |
2660 | objects, and before the final_link entry point is called. */ | |
2661 | ||
0a1b45a2 | 2662 | bool |
99706f30 | 2663 | bfd_cr16_elf32_create_embedded_relocs (bfd *abfd, |
07d6d2b8 AM |
2664 | struct bfd_link_info *info, |
2665 | asection *datasec, | |
2666 | asection *relsec, | |
2667 | char **errmsg) | |
99706f30 SR |
2668 | { |
2669 | Elf_Internal_Shdr *symtab_hdr; | |
2670 | Elf_Internal_Sym *isymbuf = NULL; | |
2671 | Elf_Internal_Rela *internal_relocs = NULL; | |
2672 | Elf_Internal_Rela *irel, *irelend; | |
2673 | bfd_byte *p; | |
2674 | bfd_size_type amt; | |
2675 | ||
0e1862bb | 2676 | BFD_ASSERT (! bfd_link_relocatable (info)); |
99706f30 SR |
2677 | |
2678 | *errmsg = NULL; | |
2679 | ||
2680 | if (datasec->reloc_count == 0) | |
0a1b45a2 | 2681 | return true; |
99706f30 SR |
2682 | |
2683 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2684 | ||
2685 | /* Get a copy of the native relocations. */ | |
2686 | internal_relocs = (_bfd_elf_link_read_relocs | |
07d6d2b8 | 2687 | (abfd, datasec, NULL, NULL, info->keep_memory)); |
99706f30 SR |
2688 | if (internal_relocs == NULL) |
2689 | goto error_return; | |
2690 | ||
2691 | amt = (bfd_size_type) datasec->reloc_count * 8; | |
2692 | relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt); | |
2693 | if (relsec->contents == NULL) | |
2694 | goto error_return; | |
2695 | ||
2696 | p = relsec->contents; | |
2697 | ||
2698 | irelend = internal_relocs + datasec->reloc_count; | |
2699 | for (irel = internal_relocs; irel < irelend; irel++, p += 8) | |
2700 | { | |
2701 | asection *targetsec; | |
2702 | ||
2703 | /* We are going to write a four byte longword into the runtime | |
db75b8f7 AM |
2704 | reloc section. The longword will be the address in the data |
2705 | section which must be relocated. It is followed by the name | |
2706 | of the target section NUL-padded or truncated to 8 | |
2707 | characters. */ | |
99706f30 SR |
2708 | |
2709 | /* We can only relocate absolute longword relocs at run time. */ | |
2710 | if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a) | |
db75b8f7 | 2711 | || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32))) |
07d6d2b8 | 2712 | { |
0aa13fee | 2713 | *errmsg = _("unsupported relocation type"); |
07d6d2b8 AM |
2714 | bfd_set_error (bfd_error_bad_value); |
2715 | goto error_return; | |
2716 | } | |
99706f30 SR |
2717 | |
2718 | /* Get the target section referred to by the reloc. */ | |
2719 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
07d6d2b8 AM |
2720 | { |
2721 | /* A local symbol. */ | |
2722 | Elf_Internal_Sym *isym; | |
2723 | ||
2724 | /* Read this BFD's local symbols if we haven't done so already. */ | |
2725 | if (isymbuf == NULL) | |
2726 | { | |
2727 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
2728 | if (isymbuf == NULL) | |
2729 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2730 | symtab_hdr->sh_info, 0, | |
2731 | NULL, NULL, NULL); | |
2732 | if (isymbuf == NULL) | |
2733 | goto error_return; | |
2734 | } | |
2735 | ||
2736 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
2737 | targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2738 | } | |
99706f30 | 2739 | else |
07d6d2b8 AM |
2740 | { |
2741 | unsigned long indx; | |
2742 | struct elf_link_hash_entry *h; | |
2743 | ||
2744 | /* An external symbol. */ | |
2745 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2746 | h = elf_sym_hashes (abfd)[indx]; | |
2747 | BFD_ASSERT (h != NULL); | |
2748 | if (h->root.type == bfd_link_hash_defined | |
2749 | || h->root.type == bfd_link_hash_defweak) | |
2750 | targetsec = h->root.u.def.section; | |
2751 | else | |
2752 | targetsec = NULL; | |
2753 | } | |
99706f30 SR |
2754 | |
2755 | bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p); | |
2756 | memset (p + 4, 0, 4); | |
2757 | if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a) | |
07d6d2b8 | 2758 | && (targetsec != NULL) ) |
db75b8f7 | 2759 | strncpy ((char *) p + 4, targetsec->output_section->name, 4); |
99706f30 SR |
2760 | } |
2761 | ||
c9594989 | 2762 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
99706f30 | 2763 | free (isymbuf); |
c9594989 | 2764 | if (elf_section_data (datasec)->relocs != internal_relocs) |
99706f30 | 2765 | free (internal_relocs); |
0a1b45a2 | 2766 | return true; |
99706f30 | 2767 | |
dc1e8a47 | 2768 | error_return: |
c9594989 | 2769 | if (symtab_hdr->contents != (unsigned char *) isymbuf) |
99706f30 | 2770 | free (isymbuf); |
c9594989 | 2771 | if (elf_section_data (datasec)->relocs != internal_relocs) |
99706f30 | 2772 | free (internal_relocs); |
0a1b45a2 | 2773 | return false; |
99706f30 SR |
2774 | } |
2775 | ||
2776 | ||
2777 | /* Classify relocation types, such that combreloc can sort them | |
2778 | properly. */ | |
2779 | ||
2780 | static enum elf_reloc_type_class | |
7e612e98 AM |
2781 | _bfd_cr16_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2782 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2783 | const Elf_Internal_Rela *rela) | |
99706f30 SR |
2784 | { |
2785 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
2786 | { | |
2787 | case R_CR16_GOT_REGREL20: | |
2788 | case R_CR16_GOTC_REGREL20: | |
2789 | return reloc_class_relative; | |
2790 | default: | |
2791 | return reloc_class_normal; | |
2792 | } | |
2793 | } | |
2794 | ||
3d3d428f | 2795 | /* Definitions for setting CR16 target vector. */ |
07d6d2b8 AM |
2796 | #define TARGET_LITTLE_SYM cr16_elf32_vec |
2797 | #define TARGET_LITTLE_NAME "elf32-cr16" | |
2798 | #define ELF_ARCH bfd_arch_cr16 | |
2799 | #define ELF_MACHINE_CODE EM_CR16 | |
2800 | #define ELF_MACHINE_ALT1 EM_CR16_OLD | |
2801 | #define ELF_MAXPAGESIZE 0x1 | |
2802 | #define elf_symbol_leading_char '_' | |
2803 | ||
2804 | #define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup | |
2805 | #define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup | |
2806 | #define elf_info_to_howto elf_cr16_info_to_howto | |
f3185997 | 2807 | #define elf_info_to_howto_rel NULL |
07d6d2b8 AM |
2808 | #define elf_backend_relocate_section elf32_cr16_relocate_section |
2809 | #define bfd_elf32_bfd_relax_section elf32_cr16_relax_section | |
3d3d428f | 2810 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
07d6d2b8 AM |
2811 | elf32_cr16_get_relocated_section_contents |
2812 | #define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook | |
2813 | #define elf_backend_can_gc_sections 1 | |
2814 | #define elf_backend_rela_normal 1 | |
2815 | #define elf_backend_check_relocs cr16_elf_check_relocs | |
99706f30 SR |
2816 | /* So we can set bits in e_flags. */ |
2817 | #define elf_backend_final_write_processing \ | |
07d6d2b8 AM |
2818 | _bfd_cr16_elf_final_write_processing |
2819 | #define elf_backend_object_p _bfd_cr16_elf_object_p | |
99706f30 SR |
2820 | |
2821 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
07d6d2b8 | 2822 | _bfd_cr16_elf_merge_private_bfd_data |
99706f30 SR |
2823 | |
2824 | ||
2825 | #define bfd_elf32_bfd_link_hash_table_create \ | |
07d6d2b8 | 2826 | elf32_cr16_link_hash_table_create |
99706f30 SR |
2827 | |
2828 | #define elf_backend_create_dynamic_sections \ | |
07d6d2b8 | 2829 | _bfd_cr16_elf_create_dynamic_sections |
99706f30 | 2830 | #define elf_backend_adjust_dynamic_symbol \ |
07d6d2b8 | 2831 | _bfd_cr16_elf_adjust_dynamic_symbol |
99706f30 | 2832 | #define elf_backend_size_dynamic_sections \ |
07d6d2b8 | 2833 | _bfd_cr16_elf_size_dynamic_sections |
d00dd7dc | 2834 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
99706f30 | 2835 | #define elf_backend_finish_dynamic_symbol \ |
07d6d2b8 | 2836 | _bfd_cr16_elf_finish_dynamic_symbol |
99706f30 | 2837 | #define elf_backend_finish_dynamic_sections \ |
07d6d2b8 | 2838 | _bfd_cr16_elf_finish_dynamic_sections |
99706f30 SR |
2839 | |
2840 | #define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class | |
2841 | ||
2842 | ||
07d6d2b8 AM |
2843 | #define elf_backend_want_got_plt 1 |
2844 | #define elf_backend_plt_readonly 1 | |
2845 | #define elf_backend_want_plt_sym 0 | |
2846 | #define elf_backend_got_header_size 12 | |
64f52338 | 2847 | #define elf_backend_dtrel_excludes_plt 1 |
3d3d428f NC |
2848 | |
2849 | #include "elf32-target.h" |