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adde6300 | 1 | /* AVR-specific support for 32-bit ELF |
1049f94e | 2 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
adde6300 AM |
3 | Contributed by Denis Chertykov <denisc@overta.ru> |
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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
adde6300 AM |
21 | #include "bfd.h" |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/avr.h" | |
26 | ||
27 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup | |
28 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
29 | static void avr_info_to_howto_rela | |
947216bf | 30 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
adde6300 | 31 | static asection *elf32_avr_gc_mark_hook |
1e2f5b6e | 32 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
adde6300 | 33 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
b34976b6 | 34 | static bfd_boolean elf32_avr_gc_sweep_hook |
adde6300 AM |
35 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
36 | const Elf_Internal_Rela *)); | |
b34976b6 | 37 | static bfd_boolean elf32_avr_check_relocs |
adde6300 AM |
38 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
39 | const Elf_Internal_Rela *)); | |
40 | static bfd_reloc_status_type avr_final_link_relocate | |
41 | PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, | |
42 | Elf_Internal_Rela *, bfd_vma)); | |
b34976b6 | 43 | static bfd_boolean elf32_avr_relocate_section |
adde6300 AM |
44 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
45 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
b34976b6 AM |
46 | static void bfd_elf_avr_final_write_processing PARAMS ((bfd *, bfd_boolean)); |
47 | static bfd_boolean elf32_avr_object_p PARAMS ((bfd *)); | |
adde6300 | 48 | |
adde6300 AM |
49 | static reloc_howto_type elf_avr_howto_table[] = |
50 | { | |
51 | HOWTO (R_AVR_NONE, /* type */ | |
52 | 0, /* rightshift */ | |
53 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
54 | 32, /* bitsize */ | |
b34976b6 | 55 | FALSE, /* pc_relative */ |
adde6300 AM |
56 | 0, /* bitpos */ |
57 | complain_overflow_bitfield, /* complain_on_overflow */ | |
58 | bfd_elf_generic_reloc, /* special_function */ | |
59 | "R_AVR_NONE", /* name */ | |
b34976b6 | 60 | FALSE, /* partial_inplace */ |
adde6300 AM |
61 | 0, /* src_mask */ |
62 | 0, /* dst_mask */ | |
b34976b6 | 63 | FALSE), /* pcrel_offset */ |
adde6300 AM |
64 | |
65 | HOWTO (R_AVR_32, /* type */ | |
66 | 0, /* rightshift */ | |
67 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
68 | 32, /* bitsize */ | |
b34976b6 | 69 | FALSE, /* pc_relative */ |
adde6300 AM |
70 | 0, /* bitpos */ |
71 | complain_overflow_bitfield, /* complain_on_overflow */ | |
72 | bfd_elf_generic_reloc, /* special_function */ | |
73 | "R_AVR_32", /* name */ | |
b34976b6 | 74 | FALSE, /* partial_inplace */ |
adde6300 AM |
75 | 0xffffffff, /* src_mask */ |
76 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 77 | FALSE), /* pcrel_offset */ |
adde6300 AM |
78 | |
79 | /* A 7 bit PC relative relocation. */ | |
80 | HOWTO (R_AVR_7_PCREL, /* type */ | |
81 | 1, /* rightshift */ | |
82 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
83 | 7, /* bitsize */ | |
b34976b6 | 84 | TRUE, /* pc_relative */ |
adde6300 AM |
85 | 3, /* bitpos */ |
86 | complain_overflow_bitfield, /* complain_on_overflow */ | |
87 | bfd_elf_generic_reloc, /* special_function */ | |
88 | "R_AVR_7_PCREL", /* name */ | |
b34976b6 | 89 | FALSE, /* partial_inplace */ |
adde6300 AM |
90 | 0xffff, /* src_mask */ |
91 | 0xffff, /* dst_mask */ | |
b34976b6 | 92 | TRUE), /* pcrel_offset */ |
adde6300 AM |
93 | |
94 | /* A 13 bit PC relative relocation. */ | |
95 | HOWTO (R_AVR_13_PCREL, /* type */ | |
96 | 1, /* rightshift */ | |
97 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
98 | 13, /* bitsize */ | |
b34976b6 | 99 | TRUE, /* pc_relative */ |
adde6300 AM |
100 | 0, /* bitpos */ |
101 | complain_overflow_bitfield, /* complain_on_overflow */ | |
102 | bfd_elf_generic_reloc, /* special_function */ | |
103 | "R_AVR_13_PCREL", /* name */ | |
b34976b6 | 104 | FALSE, /* partial_inplace */ |
adde6300 AM |
105 | 0xfff, /* src_mask */ |
106 | 0xfff, /* dst_mask */ | |
b34976b6 | 107 | TRUE), /* pcrel_offset */ |
adde6300 AM |
108 | |
109 | /* A 16 bit absolute relocation. */ | |
110 | HOWTO (R_AVR_16, /* type */ | |
111 | 0, /* rightshift */ | |
112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
113 | 16, /* bitsize */ | |
b34976b6 | 114 | FALSE, /* pc_relative */ |
adde6300 AM |
115 | 0, /* bitpos */ |
116 | complain_overflow_dont, /* complain_on_overflow */ | |
117 | bfd_elf_generic_reloc, /* special_function */ | |
118 | "R_AVR_16", /* name */ | |
b34976b6 | 119 | FALSE, /* partial_inplace */ |
adde6300 AM |
120 | 0xffff, /* src_mask */ |
121 | 0xffff, /* dst_mask */ | |
b34976b6 | 122 | FALSE), /* pcrel_offset */ |
adde6300 AM |
123 | |
124 | /* A 16 bit absolute relocation for command address. */ | |
125 | HOWTO (R_AVR_16_PM, /* type */ | |
126 | 1, /* rightshift */ | |
127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
128 | 16, /* bitsize */ | |
b34976b6 | 129 | FALSE, /* pc_relative */ |
adde6300 AM |
130 | 0, /* bitpos */ |
131 | complain_overflow_bitfield, /* complain_on_overflow */ | |
132 | bfd_elf_generic_reloc, /* special_function */ | |
133 | "R_AVR_16_PM", /* name */ | |
b34976b6 | 134 | FALSE, /* partial_inplace */ |
adde6300 AM |
135 | 0xffff, /* src_mask */ |
136 | 0xffff, /* dst_mask */ | |
b34976b6 | 137 | FALSE), /* pcrel_offset */ |
adde6300 AM |
138 | /* A low 8 bit absolute relocation of 16 bit address. |
139 | For LDI command. */ | |
140 | HOWTO (R_AVR_LO8_LDI, /* type */ | |
141 | 0, /* rightshift */ | |
142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
143 | 8, /* bitsize */ | |
b34976b6 | 144 | FALSE, /* pc_relative */ |
adde6300 AM |
145 | 0, /* bitpos */ |
146 | complain_overflow_dont, /* complain_on_overflow */ | |
147 | bfd_elf_generic_reloc, /* special_function */ | |
148 | "R_AVR_LO8_LDI", /* name */ | |
b34976b6 | 149 | FALSE, /* partial_inplace */ |
adde6300 AM |
150 | 0xffff, /* src_mask */ |
151 | 0xffff, /* dst_mask */ | |
b34976b6 | 152 | FALSE), /* pcrel_offset */ |
adde6300 AM |
153 | /* A high 8 bit absolute relocation of 16 bit address. |
154 | For LDI command. */ | |
155 | HOWTO (R_AVR_HI8_LDI, /* type */ | |
156 | 8, /* rightshift */ | |
157 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
158 | 8, /* bitsize */ | |
b34976b6 | 159 | FALSE, /* pc_relative */ |
adde6300 AM |
160 | 0, /* bitpos */ |
161 | complain_overflow_dont, /* complain_on_overflow */ | |
162 | bfd_elf_generic_reloc, /* special_function */ | |
163 | "R_AVR_HI8_LDI", /* name */ | |
b34976b6 | 164 | FALSE, /* partial_inplace */ |
adde6300 AM |
165 | 0xffff, /* src_mask */ |
166 | 0xffff, /* dst_mask */ | |
b34976b6 | 167 | FALSE), /* pcrel_offset */ |
adde6300 AM |
168 | /* A high 6 bit absolute relocation of 22 bit address. |
169 | For LDI command. */ | |
170 | HOWTO (R_AVR_HH8_LDI, /* type */ | |
171 | 16, /* rightshift */ | |
172 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
173 | 8, /* bitsize */ | |
b34976b6 | 174 | FALSE, /* pc_relative */ |
adde6300 AM |
175 | 0, /* bitpos */ |
176 | complain_overflow_dont, /* complain_on_overflow */ | |
177 | bfd_elf_generic_reloc, /* special_function */ | |
178 | "R_AVR_HH8_LDI", /* name */ | |
b34976b6 | 179 | FALSE, /* partial_inplace */ |
adde6300 AM |
180 | 0xffff, /* src_mask */ |
181 | 0xffff, /* dst_mask */ | |
b34976b6 | 182 | FALSE), /* pcrel_offset */ |
adde6300 AM |
183 | /* A negative low 8 bit absolute relocation of 16 bit address. |
184 | For LDI command. */ | |
185 | HOWTO (R_AVR_LO8_LDI_NEG, /* type */ | |
186 | 0, /* rightshift */ | |
187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
188 | 8, /* bitsize */ | |
b34976b6 | 189 | FALSE, /* pc_relative */ |
adde6300 AM |
190 | 0, /* bitpos */ |
191 | complain_overflow_dont, /* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_AVR_LO8_LDI_NEG", /* name */ | |
b34976b6 | 194 | FALSE, /* partial_inplace */ |
adde6300 AM |
195 | 0xffff, /* src_mask */ |
196 | 0xffff, /* dst_mask */ | |
b34976b6 | 197 | FALSE), /* pcrel_offset */ |
adde6300 AM |
198 | /* A hegative high 8 bit absolute relocation of 16 bit address. |
199 | For LDI command. */ | |
200 | HOWTO (R_AVR_HI8_LDI_NEG, /* type */ | |
201 | 8, /* rightshift */ | |
202 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
203 | 8, /* bitsize */ | |
b34976b6 | 204 | FALSE, /* pc_relative */ |
adde6300 AM |
205 | 0, /* bitpos */ |
206 | complain_overflow_dont, /* complain_on_overflow */ | |
207 | bfd_elf_generic_reloc, /* special_function */ | |
208 | "R_AVR_HI8_LDI_NEG", /* name */ | |
b34976b6 | 209 | FALSE, /* partial_inplace */ |
adde6300 AM |
210 | 0xffff, /* src_mask */ |
211 | 0xffff, /* dst_mask */ | |
b34976b6 | 212 | FALSE), /* pcrel_offset */ |
adde6300 AM |
213 | /* A hegative high 6 bit absolute relocation of 22 bit address. |
214 | For LDI command. */ | |
215 | HOWTO (R_AVR_HH8_LDI_NEG, /* type */ | |
216 | 16, /* rightshift */ | |
217 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
218 | 8, /* bitsize */ | |
b34976b6 | 219 | FALSE, /* pc_relative */ |
adde6300 AM |
220 | 0, /* bitpos */ |
221 | complain_overflow_dont, /* complain_on_overflow */ | |
222 | bfd_elf_generic_reloc, /* special_function */ | |
223 | "R_AVR_HH8_LDI_NEG", /* name */ | |
b34976b6 | 224 | FALSE, /* partial_inplace */ |
adde6300 AM |
225 | 0xffff, /* src_mask */ |
226 | 0xffff, /* dst_mask */ | |
b34976b6 | 227 | FALSE), /* pcrel_offset */ |
adde6300 AM |
228 | /* A low 8 bit absolute relocation of 24 bit program memory address. |
229 | For LDI command. */ | |
230 | HOWTO (R_AVR_LO8_LDI_PM, /* type */ | |
231 | 1, /* rightshift */ | |
232 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
233 | 8, /* bitsize */ | |
b34976b6 | 234 | FALSE, /* pc_relative */ |
adde6300 AM |
235 | 0, /* bitpos */ |
236 | complain_overflow_dont, /* complain_on_overflow */ | |
237 | bfd_elf_generic_reloc, /* special_function */ | |
238 | "R_AVR_LO8_LDI_PM", /* name */ | |
b34976b6 | 239 | FALSE, /* partial_inplace */ |
adde6300 AM |
240 | 0xffff, /* src_mask */ |
241 | 0xffff, /* dst_mask */ | |
b34976b6 | 242 | FALSE), /* pcrel_offset */ |
adde6300 AM |
243 | /* A high 8 bit absolute relocation of 16 bit program memory address. |
244 | For LDI command. */ | |
245 | HOWTO (R_AVR_HI8_LDI_PM, /* type */ | |
246 | 9, /* rightshift */ | |
247 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
248 | 8, /* bitsize */ | |
b34976b6 | 249 | FALSE, /* pc_relative */ |
adde6300 AM |
250 | 0, /* bitpos */ |
251 | complain_overflow_dont, /* complain_on_overflow */ | |
252 | bfd_elf_generic_reloc, /* special_function */ | |
253 | "R_AVR_HI8_LDI_PM", /* name */ | |
b34976b6 | 254 | FALSE, /* partial_inplace */ |
adde6300 AM |
255 | 0xffff, /* src_mask */ |
256 | 0xffff, /* dst_mask */ | |
b34976b6 | 257 | FALSE), /* pcrel_offset */ |
adde6300 AM |
258 | /* A high 8 bit absolute relocation of 24 bit program memory address. |
259 | For LDI command. */ | |
260 | HOWTO (R_AVR_HH8_LDI_PM, /* type */ | |
261 | 17, /* rightshift */ | |
262 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 8, /* bitsize */ | |
b34976b6 | 264 | FALSE, /* pc_relative */ |
adde6300 AM |
265 | 0, /* bitpos */ |
266 | complain_overflow_dont, /* complain_on_overflow */ | |
267 | bfd_elf_generic_reloc, /* special_function */ | |
268 | "R_AVR_HH8_LDI_PM", /* name */ | |
b34976b6 | 269 | FALSE, /* partial_inplace */ |
adde6300 AM |
270 | 0xffff, /* src_mask */ |
271 | 0xffff, /* dst_mask */ | |
b34976b6 | 272 | FALSE), /* pcrel_offset */ |
adde6300 AM |
273 | /* A low 8 bit absolute relocation of a negative 24 bit |
274 | program memory address. For LDI command. */ | |
275 | HOWTO (R_AVR_LO8_LDI_PM_NEG, /* type */ | |
276 | 1, /* rightshift */ | |
277 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
278 | 8, /* bitsize */ | |
b34976b6 | 279 | FALSE, /* pc_relative */ |
adde6300 AM |
280 | 0, /* bitpos */ |
281 | complain_overflow_dont, /* complain_on_overflow */ | |
282 | bfd_elf_generic_reloc, /* special_function */ | |
283 | "R_AVR_LO8_LDI_PM_NEG", /* name */ | |
b34976b6 | 284 | FALSE, /* partial_inplace */ |
adde6300 AM |
285 | 0xffff, /* src_mask */ |
286 | 0xffff, /* dst_mask */ | |
b34976b6 | 287 | FALSE), /* pcrel_offset */ |
adde6300 AM |
288 | /* A high 8 bit absolute relocation of a negative 16 bit |
289 | program memory address. For LDI command. */ | |
290 | HOWTO (R_AVR_HI8_LDI_PM_NEG, /* type */ | |
291 | 9, /* rightshift */ | |
292 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
293 | 8, /* bitsize */ | |
b34976b6 | 294 | FALSE, /* pc_relative */ |
adde6300 AM |
295 | 0, /* bitpos */ |
296 | complain_overflow_dont, /* complain_on_overflow */ | |
297 | bfd_elf_generic_reloc, /* special_function */ | |
298 | "R_AVR_HI8_LDI_PM_NEG", /* name */ | |
b34976b6 | 299 | FALSE, /* partial_inplace */ |
adde6300 AM |
300 | 0xffff, /* src_mask */ |
301 | 0xffff, /* dst_mask */ | |
b34976b6 | 302 | FALSE), /* pcrel_offset */ |
adde6300 AM |
303 | /* A high 8 bit absolute relocation of a negative 24 bit |
304 | program memory address. For LDI command. */ | |
305 | HOWTO (R_AVR_HH8_LDI_PM_NEG, /* type */ | |
306 | 17, /* rightshift */ | |
307 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
308 | 8, /* bitsize */ | |
b34976b6 | 309 | FALSE, /* pc_relative */ |
adde6300 AM |
310 | 0, /* bitpos */ |
311 | complain_overflow_dont, /* complain_on_overflow */ | |
312 | bfd_elf_generic_reloc, /* special_function */ | |
313 | "R_AVR_HH8_LDI_PM_NEG", /* name */ | |
b34976b6 | 314 | FALSE, /* partial_inplace */ |
adde6300 AM |
315 | 0xffff, /* src_mask */ |
316 | 0xffff, /* dst_mask */ | |
b34976b6 | 317 | FALSE), /* pcrel_offset */ |
adde6300 AM |
318 | /* Relocation for CALL command in ATmega. */ |
319 | HOWTO (R_AVR_CALL, /* type */ | |
320 | 1, /* rightshift */ | |
321 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
322 | 23, /* bitsize */ | |
b34976b6 | 323 | FALSE, /* pc_relative */ |
adde6300 AM |
324 | 0, /* bitpos */ |
325 | complain_overflow_dont, /* complain_on_overflow */ | |
326 | bfd_elf_generic_reloc, /* special_function */ | |
327 | "R_AVR_CALL", /* name */ | |
b34976b6 | 328 | FALSE, /* partial_inplace */ |
adde6300 AM |
329 | 0xffffffff, /* src_mask */ |
330 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 331 | FALSE) /* pcrel_offset */ |
adde6300 AM |
332 | }; |
333 | ||
334 | /* Map BFD reloc types to AVR ELF reloc types. */ | |
335 | ||
336 | struct avr_reloc_map | |
337 | { | |
338 | bfd_reloc_code_real_type bfd_reloc_val; | |
339 | unsigned int elf_reloc_val; | |
340 | }; | |
341 | ||
342 | static const struct avr_reloc_map avr_reloc_map[] = | |
343 | { | |
344 | { BFD_RELOC_NONE, R_AVR_NONE }, | |
345 | { BFD_RELOC_32, R_AVR_32 }, | |
346 | { BFD_RELOC_AVR_7_PCREL, R_AVR_7_PCREL }, | |
347 | { BFD_RELOC_AVR_13_PCREL, R_AVR_13_PCREL }, | |
348 | { BFD_RELOC_16, R_AVR_16 }, | |
349 | { BFD_RELOC_AVR_16_PM, R_AVR_16_PM }, | |
350 | { BFD_RELOC_AVR_LO8_LDI, R_AVR_LO8_LDI}, | |
351 | { BFD_RELOC_AVR_HI8_LDI, R_AVR_HI8_LDI }, | |
352 | { BFD_RELOC_AVR_HH8_LDI, R_AVR_HH8_LDI }, | |
353 | { BFD_RELOC_AVR_LO8_LDI_NEG, R_AVR_LO8_LDI_NEG }, | |
354 | { BFD_RELOC_AVR_HI8_LDI_NEG, R_AVR_HI8_LDI_NEG }, | |
355 | { BFD_RELOC_AVR_HH8_LDI_NEG, R_AVR_HH8_LDI_NEG }, | |
356 | { BFD_RELOC_AVR_LO8_LDI_PM, R_AVR_LO8_LDI_PM }, | |
357 | { BFD_RELOC_AVR_HI8_LDI_PM, R_AVR_HI8_LDI_PM }, | |
358 | { BFD_RELOC_AVR_HH8_LDI_PM, R_AVR_HH8_LDI_PM }, | |
359 | { BFD_RELOC_AVR_LO8_LDI_PM_NEG, R_AVR_LO8_LDI_PM_NEG }, | |
360 | { BFD_RELOC_AVR_HI8_LDI_PM_NEG, R_AVR_HI8_LDI_PM_NEG }, | |
361 | { BFD_RELOC_AVR_HH8_LDI_PM_NEG, R_AVR_HH8_LDI_PM_NEG }, | |
362 | { BFD_RELOC_AVR_CALL, R_AVR_CALL } | |
363 | }; | |
364 | ||
365 | static reloc_howto_type * | |
366 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) | |
00d2865b | 367 | bfd *abfd ATTRIBUTE_UNUSED; |
adde6300 AM |
368 | bfd_reloc_code_real_type code; |
369 | { | |
370 | unsigned int i; | |
371 | ||
372 | for (i = 0; | |
373 | i < sizeof (avr_reloc_map) / sizeof (struct avr_reloc_map); | |
374 | i++) | |
375 | { | |
376 | if (avr_reloc_map[i].bfd_reloc_val == code) | |
377 | return &elf_avr_howto_table[avr_reloc_map[i].elf_reloc_val]; | |
378 | } | |
379 | ||
380 | return NULL; | |
381 | } | |
382 | ||
383 | /* Set the howto pointer for an AVR ELF reloc. */ | |
384 | ||
385 | static void | |
386 | avr_info_to_howto_rela (abfd, cache_ptr, dst) | |
00d2865b | 387 | bfd *abfd ATTRIBUTE_UNUSED; |
adde6300 | 388 | arelent *cache_ptr; |
947216bf | 389 | Elf_Internal_Rela *dst; |
adde6300 AM |
390 | { |
391 | unsigned int r_type; | |
392 | ||
393 | r_type = ELF32_R_TYPE (dst->r_info); | |
394 | BFD_ASSERT (r_type < (unsigned int) R_AVR_max); | |
395 | cache_ptr->howto = &elf_avr_howto_table[r_type]; | |
396 | } | |
397 | ||
398 | static asection * | |
1e2f5b6e AM |
399 | elf32_avr_gc_mark_hook (sec, info, rel, h, sym) |
400 | asection *sec; | |
00d2865b | 401 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
adde6300 AM |
402 | Elf_Internal_Rela *rel; |
403 | struct elf_link_hash_entry *h; | |
404 | Elf_Internal_Sym *sym; | |
405 | { | |
406 | if (h != NULL) | |
407 | { | |
408 | switch (ELF32_R_TYPE (rel->r_info)) | |
409 | { | |
410 | default: | |
411 | switch (h->root.type) | |
412 | { | |
413 | case bfd_link_hash_defined: | |
414 | case bfd_link_hash_defweak: | |
415 | return h->root.u.def.section; | |
416 | ||
417 | case bfd_link_hash_common: | |
418 | return h->root.u.c.p->section; | |
419 | ||
420 | default: | |
421 | break; | |
422 | } | |
423 | } | |
424 | } | |
425 | else | |
1e2f5b6e | 426 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
9ad5cbcf | 427 | |
adde6300 AM |
428 | return NULL; |
429 | } | |
430 | ||
b34976b6 | 431 | static bfd_boolean |
adde6300 | 432 | elf32_avr_gc_sweep_hook (abfd, info, sec, relocs) |
00d2865b NC |
433 | bfd *abfd ATTRIBUTE_UNUSED; |
434 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
435 | asection *sec ATTRIBUTE_UNUSED; | |
436 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
adde6300 AM |
437 | { |
438 | /* We don't use got and plt entries for avr. */ | |
b34976b6 | 439 | return TRUE; |
adde6300 AM |
440 | } |
441 | ||
442 | /* Look through the relocs for a section during the first phase. | |
443 | Since we don't do .gots or .plts, we just need to consider the | |
444 | virtual table relocs for gc. */ | |
445 | ||
b34976b6 | 446 | static bfd_boolean |
adde6300 AM |
447 | elf32_avr_check_relocs (abfd, info, sec, relocs) |
448 | bfd *abfd; | |
449 | struct bfd_link_info *info; | |
450 | asection *sec; | |
451 | const Elf_Internal_Rela *relocs; | |
452 | { | |
453 | Elf_Internal_Shdr *symtab_hdr; | |
454 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
455 | const Elf_Internal_Rela *rel; | |
456 | const Elf_Internal_Rela *rel_end; | |
457 | ||
1049f94e | 458 | if (info->relocatable) |
b34976b6 | 459 | return TRUE; |
adde6300 AM |
460 | |
461 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
462 | sym_hashes = elf_sym_hashes (abfd); | |
a7c10850 | 463 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); |
adde6300 AM |
464 | if (!elf_bad_symtab (abfd)) |
465 | sym_hashes_end -= symtab_hdr->sh_info; | |
466 | ||
467 | rel_end = relocs + sec->reloc_count; | |
468 | for (rel = relocs; rel < rel_end; rel++) | |
469 | { | |
470 | struct elf_link_hash_entry *h; | |
471 | unsigned long r_symndx; | |
472 | ||
473 | r_symndx = ELF32_R_SYM (rel->r_info); | |
474 | if (r_symndx < symtab_hdr->sh_info) | |
475 | h = NULL; | |
476 | else | |
477 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
478 | } | |
479 | ||
b34976b6 | 480 | return TRUE; |
adde6300 AM |
481 | } |
482 | ||
483 | /* Perform a single relocation. By default we use the standard BFD | |
484 | routines, but a few relocs, we have to do them ourselves. */ | |
485 | ||
486 | static bfd_reloc_status_type | |
487 | avr_final_link_relocate (howto, input_bfd, input_section, | |
488 | contents, rel, relocation) | |
489 | reloc_howto_type * howto; | |
490 | bfd * input_bfd; | |
491 | asection * input_section; | |
492 | bfd_byte * contents; | |
493 | Elf_Internal_Rela * rel; | |
494 | bfd_vma relocation; | |
495 | { | |
496 | bfd_reloc_status_type r = bfd_reloc_ok; | |
497 | bfd_vma x; | |
498 | bfd_signed_vma srel; | |
499 | ||
500 | switch (howto->type) | |
501 | { | |
502 | case R_AVR_7_PCREL: | |
503 | contents += rel->r_offset; | |
504 | srel = (bfd_signed_vma) relocation; | |
505 | srel += rel->r_addend; | |
506 | srel -= rel->r_offset; | |
a7c10850 | 507 | srel -= 2; /* Branch instructions add 2 to the PC... */ |
adde6300 AM |
508 | srel -= (input_section->output_section->vma + |
509 | input_section->output_offset); | |
510 | ||
511 | if (srel & 1) | |
512 | return bfd_reloc_outofrange; | |
513 | if (srel > ((1 << 7) - 1) || (srel < - (1 << 7))) | |
514 | return bfd_reloc_overflow; | |
515 | x = bfd_get_16 (input_bfd, contents); | |
516 | x = (x & 0xfc07) | (((srel >> 1) << 3) & 0x3f8); | |
517 | bfd_put_16 (input_bfd, x, contents); | |
518 | break; | |
519 | ||
520 | case R_AVR_13_PCREL: | |
521 | contents += rel->r_offset; | |
522 | srel = (bfd_signed_vma) relocation; | |
523 | srel += rel->r_addend; | |
524 | srel -= rel->r_offset; | |
a7c10850 | 525 | srel -= 2; /* Branch instructions add 2 to the PC... */ |
adde6300 AM |
526 | srel -= (input_section->output_section->vma + |
527 | input_section->output_offset); | |
528 | ||
529 | if (srel & 1) | |
530 | return bfd_reloc_outofrange; | |
531 | ||
532 | /* AVR addresses commands as words. */ | |
533 | srel >>= 1; | |
534 | ||
535 | /* Check for overflow. */ | |
536 | if (srel < -2048 || srel > 2047) | |
537 | { | |
538 | /* Apply WRAPAROUND if possible. */ | |
65aa24b6 | 539 | switch (bfd_get_mach (input_bfd)) |
adde6300 | 540 | { |
65aa24b6 NC |
541 | case bfd_mach_avr2: |
542 | case bfd_mach_avr4: | |
543 | break; | |
544 | ||
545 | default: | |
546 | return bfd_reloc_overflow; | |
adde6300 | 547 | } |
adde6300 AM |
548 | } |
549 | ||
550 | x = bfd_get_16 (input_bfd, contents); | |
551 | x = (x & 0xf000) | (srel & 0xfff); | |
552 | bfd_put_16 (input_bfd, x, contents); | |
553 | break; | |
554 | ||
555 | case R_AVR_LO8_LDI: | |
556 | contents += rel->r_offset; | |
557 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
558 | x = bfd_get_16 (input_bfd, contents); | |
559 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
560 | bfd_put_16 (input_bfd, x, contents); | |
561 | break; | |
562 | ||
563 | case R_AVR_HI8_LDI: | |
564 | contents += rel->r_offset; | |
565 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
566 | srel = (srel >> 8) & 0xff; | |
567 | x = bfd_get_16 (input_bfd, contents); | |
568 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
569 | bfd_put_16 (input_bfd, x, contents); | |
570 | break; | |
571 | ||
572 | case R_AVR_HH8_LDI: | |
573 | contents += rel->r_offset; | |
574 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
575 | srel = (srel >> 16) & 0xff; | |
576 | x = bfd_get_16 (input_bfd, contents); | |
577 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
578 | bfd_put_16 (input_bfd, x, contents); | |
579 | break; | |
580 | ||
581 | case R_AVR_LO8_LDI_NEG: | |
582 | contents += rel->r_offset; | |
583 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
584 | srel = -srel; | |
585 | x = bfd_get_16 (input_bfd, contents); | |
586 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
587 | bfd_put_16 (input_bfd, x, contents); | |
588 | break; | |
589 | ||
590 | case R_AVR_HI8_LDI_NEG: | |
591 | contents += rel->r_offset; | |
592 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
593 | srel = -srel; | |
594 | srel = (srel >> 8) & 0xff; | |
595 | x = bfd_get_16 (input_bfd, contents); | |
596 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
597 | bfd_put_16 (input_bfd, x, contents); | |
598 | break; | |
599 | ||
600 | case R_AVR_HH8_LDI_NEG: | |
601 | contents += rel->r_offset; | |
602 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
603 | srel = -srel; | |
604 | srel = (srel >> 16) & 0xff; | |
605 | x = bfd_get_16 (input_bfd, contents); | |
606 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
607 | bfd_put_16 (input_bfd, x, contents); | |
608 | break; | |
609 | ||
610 | case R_AVR_LO8_LDI_PM: | |
611 | contents += rel->r_offset; | |
612 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
613 | if (srel & 1) | |
614 | return bfd_reloc_outofrange; | |
615 | srel = srel >> 1; | |
616 | x = bfd_get_16 (input_bfd, contents); | |
617 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
618 | bfd_put_16 (input_bfd, x, contents); | |
619 | break; | |
620 | ||
621 | case R_AVR_HI8_LDI_PM: | |
622 | contents += rel->r_offset; | |
623 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
624 | if (srel & 1) | |
625 | return bfd_reloc_outofrange; | |
626 | srel = srel >> 1; | |
627 | srel = (srel >> 8) & 0xff; | |
628 | x = bfd_get_16 (input_bfd, contents); | |
629 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
630 | bfd_put_16 (input_bfd, x, contents); | |
631 | break; | |
632 | ||
633 | case R_AVR_HH8_LDI_PM: | |
634 | contents += rel->r_offset; | |
635 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
636 | if (srel & 1) | |
637 | return bfd_reloc_outofrange; | |
638 | srel = srel >> 1; | |
639 | srel = (srel >> 16) & 0xff; | |
640 | x = bfd_get_16 (input_bfd, contents); | |
641 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
642 | bfd_put_16 (input_bfd, x, contents); | |
643 | break; | |
644 | ||
645 | case R_AVR_LO8_LDI_PM_NEG: | |
646 | contents += rel->r_offset; | |
647 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
648 | srel = -srel; | |
649 | if (srel & 1) | |
650 | return bfd_reloc_outofrange; | |
651 | srel = srel >> 1; | |
652 | x = bfd_get_16 (input_bfd, contents); | |
653 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
654 | bfd_put_16 (input_bfd, x, contents); | |
655 | break; | |
656 | ||
657 | case R_AVR_HI8_LDI_PM_NEG: | |
658 | contents += rel->r_offset; | |
659 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
660 | srel = -srel; | |
661 | if (srel & 1) | |
662 | return bfd_reloc_outofrange; | |
663 | srel = srel >> 1; | |
664 | srel = (srel >> 8) & 0xff; | |
665 | x = bfd_get_16 (input_bfd, contents); | |
666 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
667 | bfd_put_16 (input_bfd, x, contents); | |
668 | break; | |
669 | ||
670 | case R_AVR_HH8_LDI_PM_NEG: | |
671 | contents += rel->r_offset; | |
672 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
673 | srel = -srel; | |
674 | if (srel & 1) | |
675 | return bfd_reloc_outofrange; | |
676 | srel = srel >> 1; | |
677 | srel = (srel >> 16) & 0xff; | |
678 | x = bfd_get_16 (input_bfd, contents); | |
679 | x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00); | |
680 | bfd_put_16 (input_bfd, x, contents); | |
681 | break; | |
682 | ||
683 | case R_AVR_CALL: | |
684 | contents += rel->r_offset; | |
685 | srel = (bfd_signed_vma) relocation + rel->r_addend; | |
686 | if (srel & 1) | |
687 | return bfd_reloc_outofrange; | |
688 | srel = srel >> 1; | |
689 | x = bfd_get_16 (input_bfd, contents); | |
690 | x |= ((srel & 0x10000) | ((srel << 3) & 0x1f00000)) >> 16; | |
691 | bfd_put_16 (input_bfd, x, contents); | |
dc810e39 | 692 | bfd_put_16 (input_bfd, (bfd_vma) srel & 0xffff, contents+2); |
adde6300 AM |
693 | break; |
694 | ||
695 | default: | |
696 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
697 | contents, rel->r_offset, | |
698 | relocation, rel->r_addend); | |
699 | } | |
700 | ||
701 | return r; | |
702 | } | |
703 | ||
704 | /* Relocate an AVR ELF section. */ | |
b34976b6 | 705 | static bfd_boolean |
adde6300 AM |
706 | elf32_avr_relocate_section (output_bfd, info, input_bfd, input_section, |
707 | contents, relocs, local_syms, local_sections) | |
00d2865b | 708 | bfd *output_bfd ATTRIBUTE_UNUSED; |
adde6300 AM |
709 | struct bfd_link_info *info; |
710 | bfd *input_bfd; | |
711 | asection *input_section; | |
712 | bfd_byte *contents; | |
713 | Elf_Internal_Rela *relocs; | |
714 | Elf_Internal_Sym *local_syms; | |
715 | asection **local_sections; | |
716 | { | |
717 | Elf_Internal_Shdr * symtab_hdr; | |
718 | struct elf_link_hash_entry ** sym_hashes; | |
719 | Elf_Internal_Rela * rel; | |
720 | Elf_Internal_Rela * relend; | |
721 | ||
1049f94e | 722 | if (info->relocatable) |
b34976b6 | 723 | return TRUE; |
f0fe0e16 | 724 | |
adde6300 AM |
725 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
726 | sym_hashes = elf_sym_hashes (input_bfd); | |
727 | relend = relocs + input_section->reloc_count; | |
728 | ||
729 | for (rel = relocs; rel < relend; rel ++) | |
730 | { | |
731 | reloc_howto_type * howto; | |
732 | unsigned long r_symndx; | |
733 | Elf_Internal_Sym * sym; | |
734 | asection * sec; | |
735 | struct elf_link_hash_entry * h; | |
736 | bfd_vma relocation; | |
737 | bfd_reloc_status_type r; | |
738 | const char * name = NULL; | |
739 | int r_type; | |
740 | ||
f0fe0e16 | 741 | /* This is a final link. */ |
adde6300 AM |
742 | r_type = ELF32_R_TYPE (rel->r_info); |
743 | r_symndx = ELF32_R_SYM (rel->r_info); | |
adde6300 AM |
744 | howto = elf_avr_howto_table + ELF32_R_TYPE (rel->r_info); |
745 | h = NULL; | |
746 | sym = NULL; | |
747 | sec = NULL; | |
748 | ||
749 | if (r_symndx < symtab_hdr->sh_info) | |
750 | { | |
751 | sym = local_syms + r_symndx; | |
752 | sec = local_sections [r_symndx]; | |
8517fae7 | 753 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
adde6300 AM |
754 | |
755 | name = bfd_elf_string_from_elf_section | |
756 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
757 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
758 | } | |
759 | else | |
760 | { | |
761 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
762 | ||
763 | while (h->root.type == bfd_link_hash_indirect | |
764 | || h->root.type == bfd_link_hash_warning) | |
765 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
766 | ||
767 | name = h->root.root.string; | |
768 | ||
769 | if (h->root.type == bfd_link_hash_defined | |
770 | || h->root.type == bfd_link_hash_defweak) | |
771 | { | |
772 | sec = h->root.u.def.section; | |
773 | relocation = (h->root.u.def.value | |
774 | + sec->output_section->vma | |
775 | + sec->output_offset); | |
776 | } | |
777 | else if (h->root.type == bfd_link_hash_undefweak) | |
778 | { | |
779 | relocation = 0; | |
780 | } | |
781 | else | |
782 | { | |
783 | if (! ((*info->callbacks->undefined_symbol) | |
784 | (info, h->root.root.string, input_bfd, | |
b34976b6 AM |
785 | input_section, rel->r_offset, TRUE))) |
786 | return FALSE; | |
adde6300 AM |
787 | relocation = 0; |
788 | } | |
789 | } | |
790 | ||
791 | r = avr_final_link_relocate (howto, input_bfd, input_section, | |
792 | contents, rel, relocation); | |
793 | ||
794 | if (r != bfd_reloc_ok) | |
795 | { | |
796 | const char * msg = (const char *) NULL; | |
797 | ||
798 | switch (r) | |
799 | { | |
800 | case bfd_reloc_overflow: | |
801 | r = info->callbacks->reloc_overflow | |
802 | (info, name, howto->name, (bfd_vma) 0, | |
803 | input_bfd, input_section, rel->r_offset); | |
804 | break; | |
805 | ||
806 | case bfd_reloc_undefined: | |
807 | r = info->callbacks->undefined_symbol | |
b34976b6 | 808 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); |
adde6300 AM |
809 | break; |
810 | ||
811 | case bfd_reloc_outofrange: | |
812 | msg = _("internal error: out of range error"); | |
813 | break; | |
814 | ||
815 | case bfd_reloc_notsupported: | |
816 | msg = _("internal error: unsupported relocation error"); | |
817 | break; | |
818 | ||
819 | case bfd_reloc_dangerous: | |
820 | msg = _("internal error: dangerous relocation"); | |
821 | break; | |
822 | ||
823 | default: | |
824 | msg = _("internal error: unknown error"); | |
825 | break; | |
826 | } | |
827 | ||
828 | if (msg) | |
829 | r = info->callbacks->warning | |
830 | (info, msg, name, input_bfd, input_section, rel->r_offset); | |
831 | ||
832 | if (! r) | |
b34976b6 | 833 | return FALSE; |
adde6300 AM |
834 | } |
835 | } | |
836 | ||
b34976b6 | 837 | return TRUE; |
adde6300 AM |
838 | } |
839 | ||
840 | /* The final processing done just before writing out a AVR ELF object | |
841 | file. This gets the AVR architecture right based on the machine | |
842 | number. */ | |
843 | ||
844 | static void | |
845 | bfd_elf_avr_final_write_processing (abfd, linker) | |
846 | bfd *abfd; | |
b34976b6 | 847 | bfd_boolean linker ATTRIBUTE_UNUSED; |
adde6300 AM |
848 | { |
849 | unsigned long val; | |
850 | ||
851 | switch (bfd_get_mach (abfd)) | |
852 | { | |
853 | default: | |
854 | case bfd_mach_avr2: | |
855 | val = E_AVR_MACH_AVR2; | |
856 | break; | |
857 | ||
858 | case bfd_mach_avr1: | |
859 | val = E_AVR_MACH_AVR1; | |
860 | break; | |
861 | ||
862 | case bfd_mach_avr3: | |
863 | val = E_AVR_MACH_AVR3; | |
864 | break; | |
865 | ||
866 | case bfd_mach_avr4: | |
867 | val = E_AVR_MACH_AVR4; | |
868 | break; | |
869 | ||
65aa24b6 NC |
870 | case bfd_mach_avr5: |
871 | val = E_AVR_MACH_AVR5; | |
872 | break; | |
adde6300 AM |
873 | } |
874 | ||
875 | elf_elfheader (abfd)->e_machine = EM_AVR; | |
876 | elf_elfheader (abfd)->e_flags &= ~ EF_AVR_MACH; | |
877 | elf_elfheader (abfd)->e_flags |= val; | |
878 | } | |
879 | ||
880 | /* Set the right machine number. */ | |
881 | ||
b34976b6 | 882 | static bfd_boolean |
adde6300 AM |
883 | elf32_avr_object_p (abfd) |
884 | bfd *abfd; | |
885 | { | |
dc810e39 | 886 | unsigned int e_set = bfd_mach_avr2; |
aa4f99bb AO |
887 | if (elf_elfheader (abfd)->e_machine == EM_AVR |
888 | || elf_elfheader (abfd)->e_machine == EM_AVR_OLD) | |
adde6300 AM |
889 | { |
890 | int e_mach = elf_elfheader (abfd)->e_flags & EF_AVR_MACH; | |
891 | switch (e_mach) | |
892 | { | |
893 | default: | |
894 | case E_AVR_MACH_AVR2: | |
895 | e_set = bfd_mach_avr2; | |
896 | break; | |
897 | ||
898 | case E_AVR_MACH_AVR1: | |
899 | e_set = bfd_mach_avr1; | |
900 | break; | |
901 | ||
902 | case E_AVR_MACH_AVR3: | |
903 | e_set = bfd_mach_avr3; | |
904 | break; | |
905 | ||
906 | case E_AVR_MACH_AVR4: | |
907 | e_set = bfd_mach_avr4; | |
908 | break; | |
65aa24b6 NC |
909 | |
910 | case E_AVR_MACH_AVR5: | |
911 | e_set = bfd_mach_avr5; | |
912 | break; | |
adde6300 AM |
913 | } |
914 | } | |
915 | return bfd_default_set_arch_mach (abfd, bfd_arch_avr, | |
916 | e_set); | |
917 | } | |
918 | ||
adde6300 AM |
919 | #define ELF_ARCH bfd_arch_avr |
920 | #define ELF_MACHINE_CODE EM_AVR | |
aa4f99bb | 921 | #define ELF_MACHINE_ALT1 EM_AVR_OLD |
adde6300 AM |
922 | #define ELF_MAXPAGESIZE 1 |
923 | ||
924 | #define TARGET_LITTLE_SYM bfd_elf32_avr_vec | |
925 | #define TARGET_LITTLE_NAME "elf32-avr" | |
926 | ||
927 | #define elf_info_to_howto avr_info_to_howto_rela | |
928 | #define elf_info_to_howto_rel NULL | |
929 | #define elf_backend_relocate_section elf32_avr_relocate_section | |
930 | #define elf_backend_gc_mark_hook elf32_avr_gc_mark_hook | |
931 | #define elf_backend_gc_sweep_hook elf32_avr_gc_sweep_hook | |
932 | #define elf_backend_check_relocs elf32_avr_check_relocs | |
933 | #define elf_backend_can_gc_sections 1 | |
f0fe0e16 | 934 | #define elf_backend_rela_normal 1 |
adde6300 AM |
935 | #define elf_backend_final_write_processing \ |
936 | bfd_elf_avr_final_write_processing | |
937 | #define elf_backend_object_p elf32_avr_object_p | |
938 | ||
adde6300 | 939 | #include "elf32-target.h" |