Commit | Line | Data |
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93fbbb04 | 1 | /* XSTORMY16-specific support for 32-bit ELF. |
1f7fd478 | 2 | Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. |
93fbbb04 GK |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
23 | #include "elf-bfd.h" | |
24 | #include "elf/xstormy16.h" | |
1f7fd478 | 25 | #include "libiberty.h" |
93fbbb04 GK |
26 | |
27 | /* Forward declarations. */ | |
28 | static reloc_howto_type * xstormy16_reloc_type_lookup | |
29 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
cedb70c5 | 30 | static void xstormy16_info_to_howto_rela |
93fbbb04 | 31 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); |
cedb70c5 | 32 | static bfd_reloc_status_type xstormy16_elf_24_reloc |
93fbbb04 GK |
33 | PARAMS ((bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
34 | PTR data, asection *input_section, bfd *output_bfd, | |
35 | char **error_message)); | |
36 | static boolean xstormy16_elf_check_relocs | |
37 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
38 | const Elf_Internal_Rela *)); | |
39 | static boolean xstormy16_relax_plt_check | |
40 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
41 | static boolean xstormy16_relax_plt_realloc | |
42 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
43 | static boolean xstormy16_elf_relax_section | |
44 | PARAMS ((bfd *abfd, asection *sec, struct bfd_link_info *link_info, | |
45 | boolean *again)); | |
46 | static boolean xstormy16_elf_always_size_sections | |
47 | PARAMS ((bfd *, struct bfd_link_info *)); | |
cedb70c5 | 48 | static boolean xstormy16_elf_relocate_section |
93fbbb04 GK |
49 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
50 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
51 | static boolean xstormy16_elf_finish_dynamic_sections | |
52 | PARAMS((bfd *, struct bfd_link_info *)); | |
53 | static boolean xstormy16_elf_gc_sweep_hook | |
54 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
55 | const Elf_Internal_Rela *)); | |
56 | static asection * xstormy16_elf_gc_mark_hook | |
1e2f5b6e | 57 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
93fbbb04 GK |
58 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
59 | ||
60 | static reloc_howto_type xstormy16_elf_howto_table [] = | |
61 | { | |
62 | /* This reloc does nothing. */ | |
63 | HOWTO (R_XSTORMY16_NONE, /* type */ | |
64 | 0, /* rightshift */ | |
65 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
66 | 32, /* bitsize */ | |
67 | false, /* pc_relative */ | |
68 | 0, /* bitpos */ | |
69 | complain_overflow_bitfield, /* complain_on_overflow */ | |
70 | bfd_elf_generic_reloc, /* special_function */ | |
71 | "R_XSTORMY16_NONE", /* name */ | |
72 | false, /* partial_inplace */ | |
73 | 0, /* src_mask */ | |
74 | 0, /* dst_mask */ | |
75 | false), /* pcrel_offset */ | |
76 | ||
77 | /* A 32 bit absolute relocation. */ | |
78 | HOWTO (R_XSTORMY16_32, /* type */ | |
79 | 0, /* rightshift */ | |
80 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
81 | 32, /* bitsize */ | |
82 | false, /* pc_relative */ | |
83 | 0, /* bitpos */ | |
84 | complain_overflow_dont, /* complain_on_overflow */ | |
85 | bfd_elf_generic_reloc, /* special_function */ | |
86 | "R_XSTORMY16_32", /* name */ | |
87 | false, /* partial_inplace */ | |
88 | 0, /* src_mask */ | |
89 | 0xffffffff, /* dst_mask */ | |
90 | false), /* pcrel_offset */ | |
cedb70c5 | 91 | |
93fbbb04 GK |
92 | /* A 16 bit absolute relocation. */ |
93 | HOWTO (R_XSTORMY16_16, /* type */ | |
94 | 0, /* rightshift */ | |
95 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
96 | 16, /* bitsize */ | |
97 | false, /* pc_relative */ | |
98 | 0, /* bitpos */ | |
99 | complain_overflow_bitfield, /* complain_on_overflow */ | |
100 | bfd_elf_generic_reloc, /* special_function */ | |
101 | "R_XSTORMY16_16", /* name */ | |
102 | false, /* partial_inplace */ | |
103 | 0, /* src_mask */ | |
104 | 0xffffffff, /* dst_mask */ | |
105 | false), /* pcrel_offset */ | |
cedb70c5 | 106 | |
93fbbb04 GK |
107 | /* An 8 bit absolute relocation. */ |
108 | HOWTO (R_XSTORMY16_8, /* type */ | |
109 | 0, /* rightshift */ | |
110 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
111 | 8, /* bitsize */ | |
112 | false, /* pc_relative */ | |
113 | 0, /* bitpos */ | |
114 | complain_overflow_bitfield, /* complain_on_overflow */ | |
115 | bfd_elf_generic_reloc, /* special_function */ | |
116 | "R_XSTORMY16_8", /* name */ | |
117 | false, /* partial_inplace */ | |
118 | 0, /* src_mask */ | |
119 | 0xffffffff, /* dst_mask */ | |
120 | false), /* pcrel_offset */ | |
cedb70c5 | 121 | |
93fbbb04 GK |
122 | /* A 32 bit pc-relative relocation. */ |
123 | HOWTO (R_XSTORMY16_PC32, /* type */ | |
124 | 0, /* rightshift */ | |
125 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
126 | 32, /* bitsize */ | |
127 | true, /* pc_relative */ | |
128 | 0, /* bitpos */ | |
129 | complain_overflow_dont, /* complain_on_overflow */ | |
130 | bfd_elf_generic_reloc, /* special_function */ | |
131 | "R_XSTORMY16_PC32", /* name */ | |
132 | false, /* partial_inplace */ | |
133 | 0, /* src_mask */ | |
134 | 0xffffffff, /* dst_mask */ | |
135 | true), /* pcrel_offset */ | |
cedb70c5 | 136 | |
93fbbb04 GK |
137 | /* A 16 bit pc-relative relocation. */ |
138 | HOWTO (R_XSTORMY16_PC16, /* type */ | |
139 | 0, /* rightshift */ | |
140 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
141 | 16, /* bitsize */ | |
142 | true, /* pc_relative */ | |
143 | 0, /* bitpos */ | |
144 | complain_overflow_signed, /* complain_on_overflow */ | |
145 | bfd_elf_generic_reloc, /* special_function */ | |
146 | "R_XSTORMY16_PC16", /* name */ | |
147 | false, /* partial_inplace */ | |
148 | 0, /* src_mask */ | |
149 | 0xffffffff, /* dst_mask */ | |
150 | true), /* pcrel_offset */ | |
cedb70c5 | 151 | |
93fbbb04 GK |
152 | /* An 8 bit pc-relative relocation. */ |
153 | HOWTO (R_XSTORMY16_PC8, /* type */ | |
154 | 0, /* rightshift */ | |
155 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
156 | 8, /* bitsize */ | |
157 | true, /* pc_relative */ | |
158 | 0, /* bitpos */ | |
159 | complain_overflow_signed, /* complain_on_overflow */ | |
160 | bfd_elf_generic_reloc, /* special_function */ | |
161 | "R_XSTORMY16_PC8", /* name */ | |
162 | false, /* partial_inplace */ | |
163 | 0, /* src_mask */ | |
164 | 0xffffffff, /* dst_mask */ | |
165 | true), /* pcrel_offset */ | |
cedb70c5 | 166 | |
93fbbb04 GK |
167 | /* A 12-bit pc-relative relocation suitable for the branch instructions. */ |
168 | HOWTO (R_XSTORMY16_REL_12, /* type */ | |
169 | 1, /* rightshift */ | |
170 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
171 | 11, /* bitsize */ | |
172 | true, /* pc_relative */ | |
173 | 1, /* bitpos */ | |
174 | complain_overflow_signed, /* complain_on_overflow */ | |
175 | bfd_elf_generic_reloc, /* special_function */ | |
176 | "R_XSTORMY16_REL_12", /* name */ | |
177 | true, /* partial_inplace */ | |
178 | 0, /* src_mask */ | |
179 | 0x0fff, /* dst_mask */ | |
180 | true), /* pcrel_offset */ | |
cedb70c5 | 181 | |
93fbbb04 GK |
182 | /* A 24-bit absolute relocation suitable for the jump instructions. */ |
183 | HOWTO (R_XSTORMY16_24, /* type */ | |
184 | 0, /* rightshift */ | |
185 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
186 | 24, /* bitsize */ | |
187 | false, /* pc_relative */ | |
188 | 0, /* bitpos */ | |
189 | complain_overflow_unsigned, /* complain_on_overflow */ | |
190 | xstormy16_elf_24_reloc, /* special_function */ | |
191 | "R_XSTORMY16_24", /* name */ | |
192 | true, /* partial_inplace */ | |
193 | 0, /* src_mask */ | |
194 | 0xffff00ff, /* dst_mask */ | |
195 | true), /* pcrel_offset */ | |
cedb70c5 | 196 | |
93fbbb04 GK |
197 | /* A 16 bit absolute relocation to a function pointer. */ |
198 | HOWTO (R_XSTORMY16_FPTR16, /* type */ | |
199 | 0, /* rightshift */ | |
200 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
201 | 16, /* bitsize */ | |
202 | false, /* pc_relative */ | |
203 | 0, /* bitpos */ | |
204 | complain_overflow_bitfield, /* complain_on_overflow */ | |
205 | bfd_elf_generic_reloc, /* special_function */ | |
206 | "R_XSTORMY16_FPTR16", /* name */ | |
207 | false, /* partial_inplace */ | |
208 | 0, /* src_mask */ | |
209 | 0xffffffff, /* dst_mask */ | |
210 | false), /* pcrel_offset */ | |
211 | }; | |
cedb70c5 | 212 | |
93fbbb04 GK |
213 | static reloc_howto_type xstormy16_elf_howto_table2 [] = |
214 | { | |
215 | /* GNU extension to record C++ vtable hierarchy */ | |
216 | HOWTO (R_XSTORMY16_GNU_VTINHERIT, /* type */ | |
217 | 0, /* rightshift */ | |
218 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
219 | 0, /* bitsize */ | |
220 | false, /* pc_relative */ | |
221 | 0, /* bitpos */ | |
222 | complain_overflow_dont, /* complain_on_overflow */ | |
223 | NULL, /* special_function */ | |
224 | "R_XSTORMY16_GNU_VTINHERIT", /* name */ | |
225 | false, /* partial_inplace */ | |
226 | 0, /* src_mask */ | |
227 | 0, /* dst_mask */ | |
228 | false), /* pcrel_offset */ | |
229 | ||
230 | /* GNU extension to record C++ vtable member usage */ | |
231 | HOWTO (R_XSTORMY16_GNU_VTENTRY, /* type */ | |
232 | 0, /* rightshift */ | |
233 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
234 | 0, /* bitsize */ | |
235 | false, /* pc_relative */ | |
236 | 0, /* bitpos */ | |
237 | complain_overflow_dont, /* complain_on_overflow */ | |
238 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
239 | "R_XSTORMY16_GNU_VTENTRY", /* name */ | |
240 | false, /* partial_inplace */ | |
241 | 0, /* src_mask */ | |
242 | 0, /* dst_mask */ | |
243 | false), /* pcrel_offset */ | |
cedb70c5 | 244 | |
93fbbb04 GK |
245 | }; |
246 | \f | |
247 | /* Map BFD reloc types to XSTORMY16 ELF reloc types. */ | |
248 | ||
1f7fd478 | 249 | typedef struct xstormy16_reloc_map |
93fbbb04 | 250 | { |
1f7fd478 NC |
251 | bfd_reloc_code_real_type bfd_reloc_val; |
252 | unsigned int xstormy16_reloc_val; | |
253 | reloc_howto_type * table; | |
254 | } reloc_map; | |
93fbbb04 | 255 | |
1f7fd478 | 256 | static const reloc_map xstormy16_reloc_map [] = |
93fbbb04 | 257 | { |
1f7fd478 NC |
258 | { BFD_RELOC_NONE, R_XSTORMY16_NONE, xstormy16_elf_howto_table }, |
259 | { BFD_RELOC_32, R_XSTORMY16_32, xstormy16_elf_howto_table }, | |
260 | { BFD_RELOC_16, R_XSTORMY16_16, xstormy16_elf_howto_table }, | |
261 | { BFD_RELOC_8, R_XSTORMY16_8, xstormy16_elf_howto_table }, | |
262 | { BFD_RELOC_32_PCREL, R_XSTORMY16_PC32, xstormy16_elf_howto_table }, | |
263 | { BFD_RELOC_16_PCREL, R_XSTORMY16_PC16, xstormy16_elf_howto_table }, | |
264 | { BFD_RELOC_8_PCREL, R_XSTORMY16_PC8, xstormy16_elf_howto_table }, | |
265 | { BFD_RELOC_XSTORMY16_REL_12, R_XSTORMY16_REL_12, xstormy16_elf_howto_table }, | |
266 | { BFD_RELOC_XSTORMY16_24, R_XSTORMY16_24, xstormy16_elf_howto_table }, | |
267 | { BFD_RELOC_XSTORMY16_FPTR16, R_XSTORMY16_FPTR16, xstormy16_elf_howto_table }, | |
268 | { BFD_RELOC_VTABLE_INHERIT, R_XSTORMY16_GNU_VTINHERIT, xstormy16_elf_howto_table2 }, | |
269 | { BFD_RELOC_VTABLE_ENTRY, R_XSTORMY16_GNU_VTENTRY, xstormy16_elf_howto_table2 }, | |
93fbbb04 GK |
270 | }; |
271 | ||
272 | static reloc_howto_type * | |
273 | xstormy16_reloc_type_lookup (abfd, code) | |
274 | bfd * abfd ATTRIBUTE_UNUSED; | |
275 | bfd_reloc_code_real_type code; | |
276 | { | |
277 | unsigned int i; | |
278 | ||
1f7fd478 NC |
279 | for (i = ARRAY_SIZE (xstormy16_reloc_map); --i;) |
280 | { | |
281 | const reloc_map * entry; | |
282 | ||
283 | entry = xstormy16_reloc_map + i; | |
284 | ||
285 | if (entry->bfd_reloc_val == code) | |
286 | return entry->table + (entry->xstormy16_reloc_val | |
287 | - entry->table[0].type); | |
288 | } | |
cedb70c5 | 289 | |
93fbbb04 GK |
290 | return NULL; |
291 | } | |
292 | ||
293 | /* Set the howto pointer for an XSTORMY16 ELF reloc. */ | |
294 | ||
295 | static void | |
296 | xstormy16_info_to_howto_rela (abfd, cache_ptr, dst) | |
297 | bfd * abfd ATTRIBUTE_UNUSED; | |
298 | arelent * cache_ptr; | |
299 | Elf32_Internal_Rela * dst; | |
300 | { | |
301 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); | |
302 | ||
303 | if (r_type <= (unsigned int) R_XSTORMY16_FPTR16) | |
304 | cache_ptr->howto = &xstormy16_elf_howto_table [r_type]; | |
305 | else if (r_type - R_XSTORMY16_GNU_VTINHERIT | |
306 | <= (unsigned int) R_XSTORMY16_GNU_VTENTRY) | |
307 | cache_ptr->howto | |
308 | = &xstormy16_elf_howto_table2 [r_type - R_XSTORMY16_GNU_VTINHERIT]; | |
309 | else | |
310 | abort (); | |
311 | } | |
312 | ||
313 | /* Handle the R_XSTORMY16_24 reloc, which has an odd bit arrangement. */ | |
314 | ||
315 | static bfd_reloc_status_type | |
316 | xstormy16_elf_24_reloc (abfd, reloc_entry, symbol, data, input_section, | |
317 | output_bfd, error_message) | |
318 | bfd *abfd; | |
319 | arelent *reloc_entry; | |
320 | asymbol *symbol; | |
321 | PTR data; | |
322 | asection *input_section; | |
323 | bfd *output_bfd; | |
324 | char **error_message ATTRIBUTE_UNUSED; | |
325 | { | |
326 | bfd_vma relocation, x; | |
327 | ||
328 | if (output_bfd != NULL) | |
329 | { | |
330 | reloc_entry->address += input_section->output_offset; | |
331 | return bfd_reloc_ok; | |
332 | } | |
333 | ||
334 | if (reloc_entry->address > input_section->_cooked_size) | |
335 | return bfd_reloc_outofrange; | |
336 | ||
337 | if (bfd_is_com_section (symbol->section)) | |
338 | relocation = 0; | |
339 | else | |
340 | relocation = symbol->value; | |
341 | ||
342 | relocation += symbol->section->output_section->vma; | |
343 | relocation += symbol->section->output_offset; | |
344 | relocation += reloc_entry->addend; | |
345 | ||
346 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
347 | x &= 0x0000ff00; | |
348 | x |= relocation & 0xff; | |
349 | x |= (relocation << 8) & 0xffff0000; | |
350 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
351 | ||
352 | if (relocation & ~ (bfd_vma) 0xffffff) | |
353 | return bfd_reloc_overflow; | |
354 | ||
355 | return bfd_reloc_ok; | |
356 | } | |
357 | \f | |
358 | /* We support 16-bit pointers to code above 64k by generating a thunk | |
359 | below 64k containing a JMPF instruction to the final address. We | |
360 | cannot, unfortunately, minimize the number of thunks unless the | |
361 | -relax switch is given, as otherwise we have no idea where the | |
362 | sections will fall in the address space. */ | |
363 | ||
364 | static boolean | |
365 | xstormy16_elf_check_relocs (abfd, info, sec, relocs) | |
366 | bfd *abfd; | |
367 | struct bfd_link_info *info; | |
368 | asection *sec; | |
369 | const Elf_Internal_Rela *relocs; | |
370 | { | |
371 | const Elf_Internal_Rela *rel, *relend; | |
372 | struct elf_link_hash_entry **sym_hashes; | |
373 | Elf_Internal_Shdr *symtab_hdr; | |
374 | bfd_vma *local_plt_offsets; | |
375 | asection *splt; | |
376 | bfd *dynobj; | |
377 | ||
378 | if (info->relocateable) | |
379 | return true; | |
380 | ||
381 | symtab_hdr = &elf_tdata(abfd)->symtab_hdr; | |
382 | sym_hashes = elf_sym_hashes (abfd); | |
383 | local_plt_offsets = elf_local_got_offsets (abfd); | |
384 | splt = NULL; | |
385 | dynobj = elf_hash_table(info)->dynobj; | |
386 | ||
387 | relend = relocs + sec->reloc_count; | |
388 | for (rel = relocs; rel < relend; ++rel) | |
389 | { | |
390 | unsigned long r_symndx; | |
391 | struct elf_link_hash_entry *h; | |
392 | bfd_vma *offset; | |
393 | ||
394 | r_symndx = ELF32_R_SYM (rel->r_info); | |
395 | if (r_symndx < symtab_hdr->sh_info) | |
396 | h = NULL; | |
397 | else | |
398 | { | |
399 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
400 | while (h->root.type == bfd_link_hash_indirect | |
401 | || h->root.type == bfd_link_hash_warning) | |
402 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
403 | } | |
404 | ||
405 | switch (ELF32_R_TYPE (rel->r_info)) | |
406 | { | |
407 | /* This relocation describes a 16-bit pointer to a function. | |
408 | We may need to allocate a thunk in low memory; reserve memory | |
409 | for it now. */ | |
410 | case R_XSTORMY16_FPTR16: | |
411 | if (rel->r_addend != 0) | |
412 | { | |
413 | (*info->callbacks->warning) | |
414 | (info, _("non-zero addend in @fptr reloc"), 0, | |
415 | abfd, 0, 0); | |
416 | } | |
417 | ||
418 | if (dynobj == NULL) | |
419 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
420 | if (splt == NULL) | |
421 | { | |
422 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
423 | if (splt == NULL) | |
424 | { | |
425 | splt = bfd_make_section (dynobj, ".plt"); | |
426 | if (splt == NULL | |
427 | || ! bfd_set_section_flags (dynobj, splt, | |
428 | (SEC_ALLOC | |
429 | | SEC_LOAD | |
430 | | SEC_HAS_CONTENTS | |
431 | | SEC_IN_MEMORY | |
432 | | SEC_LINKER_CREATED | |
433 | | SEC_READONLY | |
434 | | SEC_CODE)) | |
435 | || ! bfd_set_section_alignment (dynobj, splt, 1)) | |
436 | return false; | |
437 | } | |
438 | } | |
439 | ||
440 | if (h != NULL) | |
441 | offset = &h->plt.offset; | |
442 | else | |
443 | { | |
444 | if (local_plt_offsets == NULL) | |
445 | { | |
446 | size_t size; | |
447 | unsigned int i; | |
448 | ||
449 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
450 | local_plt_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
451 | if (local_plt_offsets == NULL) | |
452 | return false; | |
453 | elf_local_got_offsets (abfd) = local_plt_offsets; | |
cedb70c5 | 454 | |
93fbbb04 GK |
455 | for (i = 0; i < symtab_hdr->sh_info; i++) |
456 | local_plt_offsets[i] = (bfd_vma) -1; | |
457 | } | |
458 | offset = &local_plt_offsets[r_symndx]; | |
459 | } | |
460 | ||
461 | if (*offset == (bfd_vma) -1) | |
462 | { | |
463 | *offset = splt->_raw_size; | |
464 | splt->_raw_size += 4; | |
465 | } | |
466 | break; | |
467 | ||
468 | /* This relocation describes the C++ object vtable hierarchy. | |
469 | Reconstruct it for later use during GC. */ | |
470 | case R_XSTORMY16_GNU_VTINHERIT: | |
471 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
472 | return false; | |
473 | break; | |
cedb70c5 | 474 | |
93fbbb04 GK |
475 | /* This relocation describes which C++ vtable entries are actually |
476 | used. Record for later use during GC. */ | |
477 | case R_XSTORMY16_GNU_VTENTRY: | |
478 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
479 | return false; | |
480 | break; | |
481 | } | |
482 | } | |
483 | ||
484 | return true; | |
485 | } | |
486 | ||
487 | /* A subroutine of xstormy16_elf_relax_section. If the global symbol H | |
488 | is within the low 64k, remove any entry for it in the plt. */ | |
489 | ||
490 | struct relax_plt_data | |
491 | { | |
492 | asection *splt; | |
493 | boolean *again; | |
494 | }; | |
495 | ||
496 | static boolean | |
497 | xstormy16_relax_plt_check (h, xdata) | |
498 | struct elf_link_hash_entry *h; | |
499 | PTR xdata; | |
500 | { | |
501 | struct relax_plt_data *data = (struct relax_plt_data *) xdata; | |
502 | ||
e92d460e AM |
503 | if (h->root.type == bfd_link_hash_warning) |
504 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
505 | ||
93fbbb04 GK |
506 | if (h->plt.offset != (bfd_vma) -1) |
507 | { | |
508 | bfd_vma address; | |
509 | ||
510 | if (h->root.type == bfd_link_hash_undefined | |
511 | || h->root.type == bfd_link_hash_undefweak) | |
512 | address = 0; | |
513 | else | |
514 | address = (h->root.u.def.section->output_section->vma | |
515 | + h->root.u.def.section->output_offset | |
516 | + h->root.u.def.value); | |
517 | ||
518 | if (address <= 0xffff) | |
519 | { | |
520 | h->plt.offset = -1; | |
521 | data->splt->_cooked_size -= 4; | |
522 | *data->again = true; | |
523 | } | |
524 | } | |
525 | ||
526 | return true; | |
527 | } | |
528 | ||
529 | /* A subroutine of xstormy16_elf_relax_section. If the global symbol H | |
530 | previously had a plt entry, give it a new entry offset. */ | |
531 | ||
532 | static boolean | |
533 | xstormy16_relax_plt_realloc (h, xdata) | |
534 | struct elf_link_hash_entry *h; | |
535 | PTR xdata; | |
536 | { | |
537 | bfd_vma *entry = (bfd_vma *) xdata; | |
538 | ||
e92d460e AM |
539 | if (h->root.type == bfd_link_hash_warning) |
540 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
541 | ||
93fbbb04 GK |
542 | if (h->plt.offset != (bfd_vma) -1) |
543 | { | |
544 | h->plt.offset = *entry; | |
545 | *entry += 4; | |
546 | } | |
547 | ||
548 | return true; | |
549 | } | |
550 | ||
551 | static boolean | |
552 | xstormy16_elf_relax_section (dynobj, splt, info, again) | |
553 | bfd *dynobj; | |
554 | asection *splt; | |
555 | struct bfd_link_info *info; | |
556 | boolean *again; | |
557 | { | |
558 | struct relax_plt_data relax_plt_data; | |
559 | bfd *ibfd; | |
560 | ||
561 | /* Assume nothing changes. */ | |
562 | *again = false; | |
563 | ||
564 | if (info->relocateable) | |
565 | return true; | |
566 | ||
567 | /* We only relax the .plt section at the moment. */ | |
568 | if (dynobj != elf_hash_table (info)->dynobj | |
569 | || strcmp (splt->name, ".plt") != 0) | |
570 | return true; | |
571 | ||
572 | /* Quick check for an empty plt. */ | |
573 | if (splt->_raw_size == 0) | |
574 | return true; | |
575 | ||
576 | /* If this is the first time we have been called for this section, | |
577 | initialize the cooked size. */ | |
578 | if (splt->_cooked_size == 0) | |
579 | splt->_cooked_size = splt->_raw_size; | |
580 | ||
cedb70c5 | 581 | /* Map across all global symbols; see which ones happen to |
93fbbb04 GK |
582 | fall in the low 64k. */ |
583 | relax_plt_data.splt = splt; | |
584 | relax_plt_data.again = again; | |
585 | elf_link_hash_traverse (elf_hash_table (info), xstormy16_relax_plt_check, | |
586 | &relax_plt_data); | |
587 | ||
588 | /* Likewise for local symbols, though that's somewhat less convenient | |
6cdc0ccc | 589 | as we have to walk the list of input bfds and swap in symbol data. */ |
93fbbb04 GK |
590 | for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link_next) |
591 | { | |
592 | bfd_vma *local_plt_offsets = elf_local_got_offsets (ibfd); | |
593 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 594 | Elf_Internal_Sym *isymbuf = NULL; |
93fbbb04 GK |
595 | unsigned int idx; |
596 | ||
597 | if (! local_plt_offsets) | |
598 | continue; | |
599 | ||
600 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
6cdc0ccc | 601 | if (symtab_hdr->sh_info != 0) |
93fbbb04 | 602 | { |
6cdc0ccc AM |
603 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
604 | if (isymbuf == NULL) | |
605 | isymbuf = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
606 | symtab_hdr->sh_info, 0, | |
607 | NULL, NULL, NULL); | |
608 | if (isymbuf == NULL) | |
93fbbb04 | 609 | return false; |
9ad5cbcf AM |
610 | } |
611 | ||
93fbbb04 GK |
612 | for (idx = 0; idx < symtab_hdr->sh_info; ++idx) |
613 | { | |
6cdc0ccc | 614 | Elf_Internal_Sym *isym; |
93fbbb04 GK |
615 | asection *tsec; |
616 | bfd_vma address; | |
617 | ||
618 | if (local_plt_offsets[idx] == (bfd_vma) -1) | |
619 | continue; | |
620 | ||
6cdc0ccc AM |
621 | isym = &isymbuf[idx]; |
622 | if (isym->st_shndx == SHN_UNDEF) | |
93fbbb04 | 623 | continue; |
6cdc0ccc | 624 | else if (isym->st_shndx == SHN_ABS) |
93fbbb04 | 625 | tsec = bfd_abs_section_ptr; |
6cdc0ccc | 626 | else if (isym->st_shndx == SHN_COMMON) |
9ad5cbcf | 627 | tsec = bfd_com_section_ptr; |
93fbbb04 | 628 | else |
6cdc0ccc | 629 | tsec = bfd_section_from_elf_index (ibfd, isym->st_shndx); |
93fbbb04 GK |
630 | |
631 | address = (tsec->output_section->vma | |
632 | + tsec->output_offset | |
6cdc0ccc | 633 | + isym->st_value); |
93fbbb04 GK |
634 | if (address <= 0xffff) |
635 | { | |
636 | local_plt_offsets[idx] = -1; | |
637 | splt->_cooked_size -= 4; | |
638 | *again = true; | |
639 | } | |
640 | } | |
641 | ||
6cdc0ccc AM |
642 | if (isymbuf != NULL |
643 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
644 | { | |
645 | if (! info->keep_memory) | |
646 | free (isymbuf); | |
647 | else | |
648 | { | |
649 | /* Cache the symbols for elf_link_input_bfd. */ | |
650 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
651 | } | |
652 | } | |
93fbbb04 GK |
653 | } |
654 | ||
655 | /* If we changed anything, walk the symbols again to reallocate | |
656 | .plt entry addresses. */ | |
657 | if (*again && splt->_cooked_size > 0) | |
658 | { | |
659 | bfd_vma entry = 0; | |
660 | ||
661 | elf_link_hash_traverse (elf_hash_table (info), | |
662 | xstormy16_relax_plt_realloc, &entry); | |
663 | ||
664 | for (ibfd = info->input_bfds; ibfd ; ibfd = ibfd->link_next) | |
665 | { | |
666 | bfd_vma *local_plt_offsets = elf_local_got_offsets (ibfd); | |
667 | unsigned int nlocals = elf_tdata (ibfd)->symtab_hdr.sh_info; | |
668 | unsigned int idx; | |
669 | ||
670 | if (! local_plt_offsets) | |
671 | continue; | |
672 | ||
673 | for (idx = 0; idx < nlocals; ++idx) | |
674 | if (local_plt_offsets[idx] != (bfd_vma) -1) | |
675 | { | |
676 | local_plt_offsets[idx] = entry; | |
677 | entry += 4; | |
678 | } | |
679 | } | |
680 | } | |
681 | ||
682 | splt->_raw_size = splt->_cooked_size; | |
683 | return true; | |
684 | } | |
685 | ||
686 | static boolean | |
687 | xstormy16_elf_always_size_sections (output_bfd, info) | |
688 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
689 | struct bfd_link_info *info; | |
690 | { | |
691 | bfd *dynobj; | |
692 | asection *splt; | |
693 | ||
694 | if (info->relocateable) | |
695 | return true; | |
696 | ||
697 | dynobj = elf_hash_table (info)->dynobj; | |
698 | if (dynobj == NULL) | |
699 | return true; | |
700 | ||
701 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
702 | BFD_ASSERT (splt != NULL); | |
703 | ||
704 | splt->contents = (bfd_byte *) bfd_zalloc (dynobj, splt->_raw_size); | |
705 | if (splt->contents == NULL) | |
706 | return false; | |
707 | ||
708 | return true; | |
709 | } | |
710 | \f | |
711 | /* Relocate an XSTORMY16 ELF section. | |
93fbbb04 GK |
712 | |
713 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
714 | to handle the relocations for a section. | |
715 | ||
716 | The relocs are always passed as Rela structures; if the section | |
717 | actually uses Rel structures, the r_addend field will always be | |
718 | zero. | |
719 | ||
720 | This function is responsible for adjusting the section contents as | |
721 | necessary, and (if using Rela relocs and generating a relocateable | |
722 | output file) adjusting the reloc addend as necessary. | |
723 | ||
724 | This function does not have to worry about setting the reloc | |
725 | address or the reloc symbol index. | |
726 | ||
727 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
728 | ||
729 | LOCAL_SECTIONS is an array giving the section in the input file | |
730 | corresponding to the st_shndx field of each local symbol. | |
731 | ||
732 | The global hash table entry for the global symbols can be found | |
733 | via elf_sym_hashes (input_bfd). | |
734 | ||
735 | When generating relocateable output, this function must handle | |
736 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
737 | going to be the section symbol corresponding to the output | |
738 | section, which means that the addend must be adjusted | |
739 | accordingly. */ | |
740 | ||
741 | static boolean | |
742 | xstormy16_elf_relocate_section (output_bfd, info, input_bfd, input_section, | |
743 | contents, relocs, local_syms, local_sections) | |
744 | bfd * output_bfd ATTRIBUTE_UNUSED; | |
745 | struct bfd_link_info * info; | |
746 | bfd * input_bfd; | |
747 | asection * input_section; | |
748 | bfd_byte * contents; | |
749 | Elf_Internal_Rela * relocs; | |
750 | Elf_Internal_Sym * local_syms; | |
751 | asection ** local_sections; | |
752 | { | |
753 | Elf_Internal_Shdr * symtab_hdr; | |
754 | struct elf_link_hash_entry ** sym_hashes; | |
755 | Elf_Internal_Rela * rel; | |
756 | Elf_Internal_Rela * relend; | |
757 | bfd *dynobj; | |
758 | asection *splt; | |
759 | ||
b491616a AM |
760 | if (info->relocateable) |
761 | return true; | |
762 | ||
93fbbb04 GK |
763 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
764 | sym_hashes = elf_sym_hashes (input_bfd); | |
765 | relend = relocs + input_section->reloc_count; | |
766 | ||
767 | dynobj = elf_hash_table (info)->dynobj; | |
768 | splt = NULL; | |
769 | if (dynobj != NULL) | |
770 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
771 | ||
772 | for (rel = relocs; rel < relend; rel ++) | |
773 | { | |
774 | reloc_howto_type * howto; | |
775 | unsigned long r_symndx; | |
776 | Elf_Internal_Sym * sym; | |
777 | asection * sec; | |
778 | struct elf_link_hash_entry * h; | |
779 | bfd_vma relocation; | |
780 | bfd_reloc_status_type r; | |
781 | const char * name = NULL; | |
782 | int r_type; | |
cedb70c5 | 783 | |
93fbbb04 | 784 | r_type = ELF32_R_TYPE (rel->r_info); |
cedb70c5 | 785 | |
93fbbb04 GK |
786 | if ( r_type == R_XSTORMY16_GNU_VTINHERIT |
787 | || r_type == R_XSTORMY16_GNU_VTENTRY) | |
788 | continue; | |
cedb70c5 | 789 | |
93fbbb04 | 790 | r_symndx = ELF32_R_SYM (rel->r_info); |
93fbbb04 GK |
791 | howto = xstormy16_elf_howto_table + ELF32_R_TYPE (rel->r_info); |
792 | h = NULL; | |
793 | sym = NULL; | |
794 | sec = NULL; | |
cedb70c5 | 795 | |
93fbbb04 GK |
796 | if (r_symndx < symtab_hdr->sh_info) |
797 | { | |
798 | sym = local_syms + r_symndx; | |
799 | sec = local_sections [r_symndx]; | |
800 | relocation = (sec->output_section->vma | |
801 | + sec->output_offset | |
802 | + sym->st_value); | |
cedb70c5 | 803 | |
93fbbb04 GK |
804 | name = bfd_elf_string_from_elf_section |
805 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
806 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
807 | } | |
808 | else | |
809 | { | |
810 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
cedb70c5 | 811 | |
93fbbb04 GK |
812 | while (h->root.type == bfd_link_hash_indirect |
813 | || h->root.type == bfd_link_hash_warning) | |
814 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
815 | ||
816 | name = h->root.root.string; | |
cedb70c5 | 817 | |
93fbbb04 GK |
818 | if (h->root.type == bfd_link_hash_defined |
819 | || h->root.type == bfd_link_hash_defweak) | |
820 | { | |
821 | sec = h->root.u.def.section; | |
822 | relocation = (h->root.u.def.value | |
823 | + sec->output_section->vma | |
824 | + sec->output_offset); | |
825 | } | |
826 | else if (h->root.type == bfd_link_hash_undefweak) | |
827 | { | |
828 | relocation = 0; | |
829 | } | |
830 | else | |
831 | { | |
832 | if (! ((*info->callbacks->undefined_symbol) | |
833 | (info, h->root.root.string, input_bfd, | |
834 | input_section, rel->r_offset, true))) | |
835 | return false; | |
836 | relocation = 0; | |
837 | } | |
838 | } | |
cedb70c5 | 839 | |
93fbbb04 GK |
840 | switch (ELF32_R_TYPE (rel->r_info)) |
841 | { | |
842 | case R_XSTORMY16_24: | |
843 | { | |
844 | bfd_vma reloc = relocation + rel->r_addend; | |
845 | unsigned int x; | |
cedb70c5 | 846 | |
93fbbb04 GK |
847 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
848 | x &= 0x0000ff00; | |
849 | x |= reloc & 0xff; | |
850 | x |= (reloc << 8) & 0xffff0000; | |
851 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
852 | ||
853 | if (reloc & ~0xffffff) | |
854 | r = bfd_reloc_overflow; | |
855 | else | |
856 | r = bfd_reloc_ok; | |
857 | break; | |
858 | } | |
859 | ||
860 | case R_XSTORMY16_FPTR16: | |
861 | { | |
862 | bfd_vma *plt_offset; | |
863 | ||
864 | if (h != NULL) | |
865 | plt_offset = &h->plt.offset; | |
866 | else | |
867 | plt_offset = elf_local_got_offsets (input_bfd) + r_symndx; | |
868 | ||
869 | if (relocation <= 0xffff) | |
870 | { | |
871 | /* If the symbol is in range for a 16-bit address, we should | |
872 | have deallocated the plt entry in relax_section. */ | |
873 | BFD_ASSERT (*plt_offset == (bfd_vma) -1); | |
874 | } | |
875 | else | |
876 | { | |
877 | /* If the symbol is out of range for a 16-bit address, | |
878 | we must have allocated a plt entry. */ | |
879 | BFD_ASSERT (*plt_offset != (bfd_vma) -1); | |
880 | ||
881 | /* If this is the first time we've processed this symbol, | |
882 | fill in the plt entry with the correct symbol address. */ | |
883 | if ((*plt_offset & 1) == 0) | |
884 | { | |
885 | unsigned int x; | |
886 | ||
887 | x = 0x00000200; /* jmpf */ | |
888 | x |= relocation & 0xff; | |
889 | x |= (relocation << 8) & 0xffff0000; | |
890 | bfd_put_32 (input_bfd, x, splt->contents + *plt_offset); | |
891 | *plt_offset |= 1; | |
892 | } | |
893 | ||
894 | relocation = (splt->output_section->vma | |
895 | + splt->output_offset | |
896 | + (*plt_offset & -2)); | |
897 | } | |
898 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
899 | contents, rel->r_offset, | |
900 | relocation, 0); | |
901 | break; | |
902 | } | |
903 | ||
904 | default: | |
905 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
906 | contents, rel->r_offset, | |
907 | relocation, rel->r_addend); | |
908 | break; | |
909 | } | |
910 | ||
911 | if (r != bfd_reloc_ok) | |
912 | { | |
913 | const char * msg = (const char *) NULL; | |
914 | ||
915 | switch (r) | |
916 | { | |
917 | case bfd_reloc_overflow: | |
918 | r = info->callbacks->reloc_overflow | |
919 | (info, name, howto->name, (bfd_vma) 0, | |
920 | input_bfd, input_section, rel->r_offset); | |
921 | break; | |
cedb70c5 | 922 | |
93fbbb04 GK |
923 | case bfd_reloc_undefined: |
924 | r = info->callbacks->undefined_symbol | |
925 | (info, name, input_bfd, input_section, rel->r_offset, | |
926 | true); | |
927 | break; | |
cedb70c5 | 928 | |
93fbbb04 GK |
929 | case bfd_reloc_outofrange: |
930 | msg = _("internal error: out of range error"); | |
931 | break; | |
932 | ||
933 | case bfd_reloc_notsupported: | |
934 | msg = _("internal error: unsupported relocation error"); | |
935 | break; | |
936 | ||
937 | case bfd_reloc_dangerous: | |
938 | msg = _("internal error: dangerous relocation"); | |
939 | break; | |
940 | ||
941 | default: | |
942 | msg = _("internal error: unknown error"); | |
943 | break; | |
944 | } | |
945 | ||
946 | if (msg) | |
947 | r = info->callbacks->warning | |
948 | (info, msg, name, input_bfd, input_section, rel->r_offset); | |
949 | ||
950 | if (! r) | |
951 | return false; | |
952 | } | |
953 | } | |
954 | ||
955 | return true; | |
956 | } | |
957 | ||
958 | /* This must exist if dynobj is ever set. */ | |
959 | ||
960 | static boolean | |
961 | xstormy16_elf_finish_dynamic_sections (abfd, info) | |
962 | bfd *abfd ATTRIBUTE_UNUSED; | |
963 | struct bfd_link_info *info; | |
964 | { | |
965 | bfd *dynobj; | |
966 | asection *splt; | |
967 | ||
968 | /* As an extra sanity check, verify that all plt entries have | |
969 | been filled in. */ | |
970 | ||
971 | if ((dynobj = elf_hash_table (info)->dynobj) != NULL | |
972 | && (splt = bfd_get_section_by_name (dynobj, ".plt")) != NULL) | |
973 | { | |
974 | bfd_byte *contents = splt->contents; | |
975 | unsigned int i, size = splt->_raw_size; | |
976 | for (i = 0; i < size; i += 4) | |
977 | { | |
978 | unsigned int x = bfd_get_32 (dynobj, contents + i); | |
979 | BFD_ASSERT (x != 0); | |
980 | } | |
981 | } | |
982 | ||
983 | return true; | |
984 | } | |
985 | \f | |
986 | /* Return the section that should be marked against GC for a given | |
987 | relocation. */ | |
988 | ||
989 | static asection * | |
1e2f5b6e AM |
990 | xstormy16_elf_gc_mark_hook (sec, info, rel, h, sym) |
991 | asection * sec; | |
93fbbb04 GK |
992 | struct bfd_link_info * info ATTRIBUTE_UNUSED; |
993 | Elf_Internal_Rela * rel; | |
994 | struct elf_link_hash_entry * h; | |
995 | Elf_Internal_Sym * sym; | |
996 | { | |
997 | if (h != NULL) | |
998 | { | |
999 | switch (ELF32_R_TYPE (rel->r_info)) | |
1000 | { | |
1001 | case R_XSTORMY16_GNU_VTINHERIT: | |
1002 | case R_XSTORMY16_GNU_VTENTRY: | |
1003 | break; | |
1004 | ||
1005 | default: | |
1006 | switch (h->root.type) | |
1007 | { | |
1008 | case bfd_link_hash_defined: | |
1009 | case bfd_link_hash_defweak: | |
1010 | return h->root.u.def.section; | |
1011 | ||
1012 | case bfd_link_hash_common: | |
1013 | return h->root.u.c.p->section; | |
1014 | ||
1015 | default: | |
1016 | break; | |
1017 | } | |
1018 | } | |
1019 | } | |
1020 | else | |
1e2f5b6e | 1021 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
93fbbb04 GK |
1022 | |
1023 | return NULL; | |
1024 | } | |
1025 | ||
1026 | /* Update the got entry reference counts for the section being removed. */ | |
1027 | ||
1028 | static boolean | |
1029 | xstormy16_elf_gc_sweep_hook (abfd, info, sec, relocs) | |
1030 | bfd * abfd ATTRIBUTE_UNUSED; | |
1031 | struct bfd_link_info * info ATTRIBUTE_UNUSED; | |
1032 | asection * sec ATTRIBUTE_UNUSED; | |
1033 | const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED; | |
1034 | { | |
1035 | return true; | |
1036 | } | |
1037 | \f | |
1038 | #define ELF_ARCH bfd_arch_xstormy16 | |
1039 | #define ELF_MACHINE_CODE EM_XSTORMY16 | |
1040 | #define ELF_MAXPAGESIZE 0x100 | |
1041 | ||
1042 | #define TARGET_LITTLE_SYM bfd_elf32_xstormy16_vec | |
1043 | #define TARGET_LITTLE_NAME "elf32-xstormy16" | |
1044 | ||
1045 | #define elf_info_to_howto_rel NULL | |
1046 | #define elf_info_to_howto xstormy16_info_to_howto_rela | |
1047 | #define elf_backend_relocate_section xstormy16_elf_relocate_section | |
1048 | #define elf_backend_gc_mark_hook xstormy16_elf_gc_mark_hook | |
1049 | #define elf_backend_gc_sweep_hook xstormy16_elf_gc_sweep_hook | |
1050 | #define elf_backend_check_relocs xstormy16_elf_check_relocs | |
1051 | #define elf_backend_always_size_sections \ | |
1052 | xstormy16_elf_always_size_sections | |
1053 | #define elf_backend_finish_dynamic_sections \ | |
1054 | xstormy16_elf_finish_dynamic_sections | |
1055 | ||
1056 | #define elf_backend_can_gc_sections 1 | |
b491616a | 1057 | #define elf_backend_rela_normal 1 |
93fbbb04 GK |
1058 | |
1059 | #define bfd_elf32_bfd_reloc_type_lookup xstormy16_reloc_type_lookup | |
1060 | #define bfd_elf32_bfd_relax_section xstormy16_elf_relax_section | |
1061 | ||
1062 | #include "elf32-target.h" |