Commit | Line | Data |
---|---|---|
3b55e94a | 1 | /* ADI Blackfin BFD support for 32-bit ELF. |
66eb6687 | 2 | Copyright 2005, 2006 Free Software Foundation, Inc. |
0f64bb02 CM |
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, | |
19 | USA. */ | |
20 | ||
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/bfin.h" | |
26 | ||
0f64bb02 CM |
27 | /* FUNCTION : bfin_pltpc_reloc |
28 | ABSTRACT : TODO : figure out how to handle pltpc relocs. */ | |
29 | static bfd_reloc_status_type | |
30 | bfin_pltpc_reloc ( | |
31 | bfd *abfd ATTRIBUTE_UNUSED, | |
32 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
33 | asymbol *symbol ATTRIBUTE_UNUSED, | |
34 | PTR data ATTRIBUTE_UNUSED, | |
35 | asection *input_section ATTRIBUTE_UNUSED, | |
36 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
3b55e94a | 37 | char **error_message ATTRIBUTE_UNUSED) |
0f64bb02 CM |
38 | { |
39 | bfd_reloc_status_type flag = bfd_reloc_ok; | |
3b55e94a | 40 | return flag; |
0f64bb02 CM |
41 | } |
42 | \f | |
43 | ||
44 | static bfd_reloc_status_type | |
45 | bfin_pcrel24_reloc (bfd *abfd, | |
46 | arelent *reloc_entry, | |
47 | asymbol *symbol, | |
48 | PTR data, | |
49 | asection *input_section, | |
50 | bfd *output_bfd, | |
51 | char **error_message ATTRIBUTE_UNUSED) | |
52 | { | |
53 | bfd_vma relocation; | |
54 | bfd_size_type addr = reloc_entry->address; | |
55 | bfd_vma output_base = 0; | |
56 | reloc_howto_type *howto = reloc_entry->howto; | |
57 | asection *output_section; | |
58 | bfd_boolean relocatable = (output_bfd != NULL); | |
59 | ||
60 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
61 | return bfd_reloc_outofrange; | |
62 | ||
3b55e94a BS |
63 | if (bfd_is_und_section (symbol->section) |
64 | && (symbol->flags & BSF_WEAK) == 0 | |
65 | && !relocatable) | |
66 | return bfd_reloc_undefined; | |
67 | ||
68 | if (bfd_is_com_section (symbol->section)) | |
69 | relocation = 0; | |
0f64bb02 | 70 | else |
3b55e94a | 71 | relocation = symbol->value; |
0f64bb02 | 72 | |
3b55e94a BS |
73 | output_section = symbol->section->output_section; |
74 | ||
75 | if (relocatable) | |
76 | output_base = 0; | |
77 | else | |
78 | output_base = output_section->vma; | |
79 | ||
80 | if (!relocatable || !strcmp (symbol->name, symbol->section->name)) | |
81 | relocation += output_base + symbol->section->output_offset; | |
0f64bb02 | 82 | |
3b55e94a BS |
83 | if (!relocatable && !strcmp (symbol->name, symbol->section->name)) |
84 | relocation += reloc_entry->addend; | |
0f64bb02 | 85 | |
0f64bb02 CM |
86 | relocation -= input_section->output_section->vma + input_section->output_offset; |
87 | relocation -= reloc_entry->address; | |
88 | ||
89 | if (howto->complain_on_overflow != complain_overflow_dont) | |
90 | { | |
91 | bfd_reloc_status_type status; | |
3b55e94a BS |
92 | status = bfd_check_overflow (howto->complain_on_overflow, |
93 | howto->bitsize, | |
94 | howto->rightshift, | |
95 | bfd_arch_bits_per_address(abfd), | |
96 | relocation); | |
0f64bb02 CM |
97 | if (status != bfd_reloc_ok) |
98 | return status; | |
99 | } | |
3b55e94a | 100 | |
0f64bb02 CM |
101 | /* if rightshift is 1 and the number odd, return error. */ |
102 | if (howto->rightshift && (relocation & 0x01)) | |
103 | { | |
104 | fprintf(stderr, "relocation should be even number\n"); | |
105 | return bfd_reloc_overflow; | |
106 | } | |
107 | ||
108 | relocation >>= (bfd_vma) howto->rightshift; | |
109 | /* Shift everything up to where it's going to be used. */ | |
110 | ||
111 | relocation <<= (bfd_vma) howto->bitpos; | |
112 | ||
113 | if (relocatable) | |
114 | { | |
115 | reloc_entry->address += input_section->output_offset; | |
116 | reloc_entry->addend += symbol->section->output_offset; | |
117 | } | |
118 | ||
119 | { | |
120 | short x; | |
121 | ||
122 | /* We are getting reloc_entry->address 2 byte off from | |
3b55e94a BS |
123 | the start of instruction. Assuming absolute postion |
124 | of the reloc data. But, following code had been written assuming | |
125 | reloc address is starting at begining of instruction. | |
126 | To compensate that I have increased the value of | |
127 | relocation by 1 (effectively 2) and used the addr -2 instead of addr. */ | |
0f64bb02 CM |
128 | |
129 | relocation += 1; | |
130 | x = bfd_get_16 (abfd, (bfd_byte *) data + addr - 2); | |
131 | x = (x & 0xff00) | ((relocation >> 16) & 0xff); | |
132 | bfd_put_16 (abfd, x, (unsigned char *) data + addr - 2); | |
133 | ||
134 | x = bfd_get_16 (abfd, (bfd_byte *) data + addr); | |
135 | x = relocation & 0xFFFF; | |
136 | bfd_put_16 (abfd, x, (unsigned char *) data + addr ); | |
137 | } | |
138 | return bfd_reloc_ok; | |
139 | } | |
140 | ||
141 | static bfd_reloc_status_type | |
3b55e94a BS |
142 | bfin_imm16_reloc (bfd *abfd, |
143 | arelent *reloc_entry, | |
144 | asymbol *symbol, | |
145 | PTR data, | |
146 | asection *input_section, | |
147 | bfd *output_bfd, | |
148 | char **error_message ATTRIBUTE_UNUSED) | |
0f64bb02 | 149 | { |
3b55e94a BS |
150 | bfd_vma relocation, x; |
151 | bfd_size_type reloc_addr = reloc_entry->address; | |
0f64bb02 | 152 | bfd_vma output_base = 0; |
3b55e94a | 153 | reloc_howto_type *howto = reloc_entry->howto; |
0f64bb02 CM |
154 | asection *output_section; |
155 | bfd_boolean relocatable = (output_bfd != NULL); | |
156 | ||
3b55e94a BS |
157 | /* Is the address of the relocation really within the section? */ |
158 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
159 | return bfd_reloc_outofrange; | |
160 | ||
0f64bb02 CM |
161 | if (bfd_is_und_section (symbol->section) |
162 | && (symbol->flags & BSF_WEAK) == 0 | |
163 | && !relocatable) | |
164 | return bfd_reloc_undefined; | |
165 | ||
0f64bb02 | 166 | output_section = symbol->section->output_section; |
3b55e94a | 167 | relocation = symbol->value; |
0f64bb02 CM |
168 | |
169 | /* Convert input-section-relative symbol value to absolute. */ | |
170 | if (relocatable) | |
171 | output_base = 0; | |
172 | else | |
173 | output_base = output_section->vma; | |
174 | ||
3b55e94a | 175 | if (!relocatable || !strcmp (symbol->name, symbol->section->name)) |
0f64bb02 CM |
176 | relocation += output_base + symbol->section->output_offset; |
177 | ||
178 | /* Add in supplied addend. */ | |
179 | relocation += reloc_entry->addend; | |
180 | ||
181 | if (relocatable) | |
182 | { | |
183 | reloc_entry->address += input_section->output_offset; | |
184 | reloc_entry->addend += symbol->section->output_offset; | |
185 | } | |
0f64bb02 CM |
186 | else |
187 | { | |
188 | reloc_entry->addend = 0; | |
189 | } | |
190 | ||
191 | if (howto->complain_on_overflow != complain_overflow_dont) | |
192 | { | |
193 | bfd_reloc_status_type flag; | |
194 | flag = bfd_check_overflow (howto->complain_on_overflow, | |
3b55e94a BS |
195 | howto->bitsize, |
196 | howto->rightshift, | |
197 | bfd_arch_bits_per_address(abfd), | |
198 | relocation); | |
0f64bb02 | 199 | if (flag != bfd_reloc_ok) |
3b55e94a | 200 | return flag; |
0f64bb02 CM |
201 | } |
202 | ||
0f64bb02 CM |
203 | /* Here the variable relocation holds the final address of the |
204 | symbol we are relocating against, plus any addend. */ | |
205 | ||
0f64bb02 CM |
206 | relocation >>= (bfd_vma) howto->rightshift; |
207 | x = relocation; | |
208 | bfd_put_16 (abfd, x, (unsigned char *) data + reloc_addr); | |
209 | return bfd_reloc_ok; | |
210 | } | |
211 | ||
212 | ||
213 | static bfd_reloc_status_type | |
214 | bfin_byte4_reloc (bfd *abfd, | |
215 | arelent *reloc_entry, | |
216 | asymbol *symbol, | |
217 | PTR data, | |
218 | asection *input_section, | |
219 | bfd *output_bfd, | |
3b55e94a | 220 | char **error_message ATTRIBUTE_UNUSED) |
0f64bb02 CM |
221 | { |
222 | bfd_vma relocation, x; | |
223 | bfd_size_type addr = reloc_entry->address; | |
224 | bfd_vma output_base = 0; | |
225 | asection *output_section; | |
226 | bfd_boolean relocatable = (output_bfd != NULL); | |
227 | ||
228 | /* Is the address of the relocation really within the section? */ | |
229 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
230 | return bfd_reloc_outofrange; | |
231 | ||
3b55e94a BS |
232 | if (bfd_is_und_section (symbol->section) |
233 | && (symbol->flags & BSF_WEAK) == 0 | |
234 | && !relocatable) | |
235 | return bfd_reloc_undefined; | |
0f64bb02 | 236 | |
3b55e94a BS |
237 | output_section = symbol->section->output_section; |
238 | relocation = symbol->value; | |
239 | /* Convert input-section-relative symbol value to absolute. */ | |
240 | if (relocatable) | |
241 | output_base = 0; | |
0f64bb02 | 242 | else |
3b55e94a BS |
243 | output_base = output_section->vma; |
244 | ||
245 | if ((symbol->name | |
246 | && symbol->section->name | |
247 | && !strcmp (symbol->name, symbol->section->name)) | |
248 | || !relocatable) | |
0f64bb02 | 249 | { |
3b55e94a | 250 | relocation += output_base + symbol->section->output_offset; |
0f64bb02 CM |
251 | } |
252 | ||
3b55e94a BS |
253 | relocation += reloc_entry->addend; |
254 | ||
0f64bb02 | 255 | if (relocatable) |
3b55e94a | 256 | { |
0f64bb02 CM |
257 | /* This output will be relocatable ... like ld -r. */ |
258 | reloc_entry->address += input_section->output_offset; | |
259 | reloc_entry->addend += symbol->section->output_offset; | |
260 | } | |
261 | else | |
262 | { | |
263 | reloc_entry->addend = 0; | |
264 | } | |
265 | ||
266 | /* Here the variable relocation holds the final address of the | |
267 | symbol we are relocating against, plus any addend. */ | |
268 | x = relocation & 0xFFFF0000; | |
269 | x >>=16; | |
270 | bfd_put_16 (abfd, x, (unsigned char *) data + addr + 2); | |
3b55e94a | 271 | |
0f64bb02 CM |
272 | x = relocation & 0x0000FFFF; |
273 | bfd_put_16 (abfd, x, (unsigned char *) data + addr); | |
274 | return bfd_reloc_ok; | |
275 | } | |
276 | ||
277 | /* bfin_bfd_reloc handles the blackfin arithmetic relocations. | |
278 | Use this instead of bfd_perform_relocation. */ | |
279 | static bfd_reloc_status_type | |
280 | bfin_bfd_reloc (bfd *abfd, | |
281 | arelent *reloc_entry, | |
282 | asymbol *symbol, | |
283 | PTR data, | |
284 | asection *input_section, | |
285 | bfd *output_bfd, | |
286 | char **error_message ATTRIBUTE_UNUSED) | |
287 | { | |
288 | bfd_vma relocation; | |
289 | bfd_size_type addr = reloc_entry->address; | |
290 | bfd_vma output_base = 0; | |
291 | reloc_howto_type *howto = reloc_entry->howto; | |
292 | asection *output_section; | |
293 | bfd_boolean relocatable = (output_bfd != NULL); | |
294 | ||
295 | /* Is the address of the relocation really within the section? */ | |
296 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
297 | return bfd_reloc_outofrange; | |
298 | ||
3b55e94a BS |
299 | if (bfd_is_und_section (symbol->section) |
300 | && (symbol->flags & BSF_WEAK) == 0 | |
301 | && !relocatable) | |
302 | return bfd_reloc_undefined; | |
303 | ||
304 | /* Get symbol value. (Common symbols are special.) */ | |
305 | if (bfd_is_com_section (symbol->section)) | |
306 | relocation = 0; | |
0f64bb02 | 307 | else |
3b55e94a BS |
308 | relocation = symbol->value; |
309 | ||
310 | output_section = symbol->section->output_section; | |
311 | ||
312 | /* Convert input-section-relative symbol value to absolute. */ | |
313 | if (relocatable) | |
314 | output_base = 0; | |
315 | else | |
316 | output_base = output_section->vma; | |
317 | ||
318 | if (!relocatable || !strcmp (symbol->name, symbol->section->name)) | |
319 | relocation += output_base + symbol->section->output_offset; | |
320 | ||
321 | if (!relocatable && !strcmp (symbol->name, symbol->section->name)) | |
0f64bb02 | 322 | { |
3b55e94a BS |
323 | /* Add in supplied addend. */ |
324 | relocation += reloc_entry->addend; | |
0f64bb02 | 325 | } |
3b55e94a | 326 | |
0f64bb02 CM |
327 | /* Here the variable relocation holds the final address of the |
328 | symbol we are relocating against, plus any addend. */ | |
329 | ||
330 | if (howto->pc_relative == TRUE) | |
331 | { | |
332 | relocation -= input_section->output_section->vma + input_section->output_offset; | |
333 | ||
334 | if (howto->pcrel_offset == TRUE) | |
335 | relocation -= reloc_entry->address; | |
336 | } | |
337 | ||
338 | if (relocatable) | |
339 | { | |
340 | reloc_entry->address += input_section->output_offset; | |
341 | reloc_entry->addend += symbol->section->output_offset; | |
342 | } | |
343 | ||
344 | if (howto->complain_on_overflow != complain_overflow_dont) | |
345 | { | |
346 | bfd_reloc_status_type status; | |
347 | ||
3b55e94a | 348 | status = bfd_check_overflow (howto->complain_on_overflow, |
0f64bb02 | 349 | howto->bitsize, |
3b55e94a | 350 | howto->rightshift, |
0f64bb02 CM |
351 | bfd_arch_bits_per_address(abfd), |
352 | relocation); | |
353 | if (status != bfd_reloc_ok) | |
354 | return status; | |
355 | } | |
3b55e94a | 356 | |
0f64bb02 CM |
357 | /* If rightshift is 1 and the number odd, return error. */ |
358 | if (howto->rightshift && (relocation & 0x01)) | |
359 | { | |
360 | fprintf(stderr, "relocation should be even number\n"); | |
361 | return bfd_reloc_overflow; | |
362 | } | |
363 | ||
364 | relocation >>= (bfd_vma) howto->rightshift; | |
365 | ||
366 | /* Shift everything up to where it's going to be used. */ | |
367 | ||
368 | relocation <<= (bfd_vma) howto->bitpos; | |
369 | ||
3b55e94a | 370 | #define DOIT(x) \ |
0f64bb02 CM |
371 | x = ( (x & ~howto->dst_mask) | (relocation & howto->dst_mask)) |
372 | ||
373 | /* handle 8 and 16 bit relocations here. */ | |
374 | switch (howto->size) | |
375 | { | |
376 | case 0: | |
377 | { | |
378 | char x = bfd_get_8 (abfd, (char *) data + addr); | |
379 | DOIT (x); | |
380 | bfd_put_8 (abfd, x, (unsigned char *) data + addr); | |
381 | } | |
382 | break; | |
383 | ||
384 | case 1: | |
385 | { | |
386 | unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr); | |
387 | DOIT (x); | |
388 | bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr); | |
389 | } | |
390 | break; | |
391 | ||
392 | default: | |
393 | return bfd_reloc_other; | |
394 | } | |
395 | ||
3b55e94a | 396 | return bfd_reloc_ok; |
0f64bb02 CM |
397 | } |
398 | ||
0f64bb02 CM |
399 | /* HOWTO Table for blackfin. |
400 | Blackfin relocations are fairly complicated. | |
401 | Some of the salient features are | |
402 | a. Even numbered offsets. A number of (not all) relocations are | |
403 | even numbered. This means that the rightmost bit is not stored. | |
404 | Needs to right shift by 1 and check to see if value is not odd | |
405 | b. A relocation can be an expression. An expression takes on | |
406 | a variety of relocations arranged in a stack. | |
407 | As a result, we cannot use the standard generic function as special | |
408 | function. We will have our own, which is very similar to the standard | |
409 | generic function except that it understands how to get the value from | |
410 | the relocation stack. . */ | |
411 | ||
412 | #define BFIN_RELOC_MIN 0 | |
413 | #define BFIN_RELOC_MAX 0x13 | |
414 | #define BFIN_GNUEXT_RELOC_MIN 0x40 | |
415 | #define BFIN_GNUEXT_RELOC_MAX 0x43 | |
416 | #define BFIN_ARELOC_MIN 0xE0 | |
417 | #define BFIN_ARELOC_MAX 0xF3 | |
418 | ||
419 | static reloc_howto_type bfin_howto_table [] = | |
420 | { | |
421 | /* This reloc does nothing. . */ | |
422 | HOWTO (R_unused0, /* type. */ | |
423 | 0, /* rightshift. */ | |
424 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
425 | 32, /* bitsize. */ | |
426 | FALSE, /* pc_relative. */ | |
427 | 0, /* bitpos. */ | |
428 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
429 | bfd_elf_generic_reloc, /* special_function. */ | |
430 | "R_unused0", /* name. */ | |
431 | FALSE, /* partial_inplace. */ | |
432 | 0, /* src_mask. */ | |
433 | 0, /* dst_mask. */ | |
434 | FALSE), /* pcrel_offset. */ | |
435 | ||
436 | HOWTO (R_pcrel5m2, /* type. */ | |
437 | 1, /* rightshift. */ | |
438 | 1, /* size (0 = byte, 1 = short, 2 = long).. */ | |
439 | 4, /* bitsize. */ | |
440 | TRUE, /* pc_relative. */ | |
441 | 0, /* bitpos. */ | |
442 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
443 | bfin_bfd_reloc, /* special_function. */ | |
444 | "R_pcrel5m2", /* name. */ | |
445 | FALSE, /* partial_inplace. */ | |
f4707595 | 446 | 0, /* src_mask. */ |
0f64bb02 CM |
447 | 0x0000000F, /* dst_mask. */ |
448 | FALSE), /* pcrel_offset. */ | |
449 | ||
450 | HOWTO (R_unused1, /* type. */ | |
451 | 0, /* rightshift. */ | |
452 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
453 | 32, /* bitsize. */ | |
454 | FALSE, /* pc_relative. */ | |
455 | 0, /* bitpos. */ | |
456 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
457 | bfd_elf_generic_reloc, /* special_function. */ | |
458 | "R_unused1", /* name. */ | |
459 | FALSE, /* partial_inplace. */ | |
460 | 0, /* src_mask. */ | |
461 | 0, /* dst_mask. */ | |
462 | FALSE), /* pcrel_offset. */ | |
463 | ||
464 | HOWTO (R_pcrel10, /* type. */ | |
465 | 1, /* rightshift. */ | |
466 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
467 | 10, /* bitsize. */ | |
468 | TRUE, /* pc_relative. */ | |
469 | 0, /* bitpos. */ | |
470 | complain_overflow_signed, /* complain_on_overflow. */ | |
471 | bfin_bfd_reloc, /* special_function. */ | |
472 | "R_pcrel10", /* name. */ | |
473 | FALSE, /* partial_inplace. */ | |
f4707595 | 474 | 0, /* src_mask. */ |
0f64bb02 CM |
475 | 0x000003FF, /* dst_mask. */ |
476 | TRUE), /* pcrel_offset. */ | |
3b55e94a | 477 | |
0f64bb02 CM |
478 | HOWTO (R_pcrel12_jump, /* type. */ |
479 | 1, /* rightshift. */ | |
480 | /* the offset is actually 13 bit | |
481 | aligned on a word boundary so | |
482 | only 12 bits have to be used. | |
483 | Right shift the rightmost bit.. */ | |
484 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
485 | 12, /* bitsize. */ | |
486 | TRUE, /* pc_relative. */ | |
487 | 0, /* bitpos. */ | |
488 | complain_overflow_signed, /* complain_on_overflow. */ | |
489 | bfin_bfd_reloc, /* special_function. */ | |
490 | "R_pcrel12_jump", /* name. */ | |
491 | FALSE, /* partial_inplace. */ | |
f4707595 | 492 | 0, /* src_mask. */ |
0f64bb02 CM |
493 | 0x0FFF, /* dst_mask. */ |
494 | TRUE), /* pcrel_offset. */ | |
495 | ||
496 | HOWTO (R_rimm16, /* type. */ | |
497 | 0, /* rightshift. */ | |
498 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
499 | 16, /* bitsize. */ | |
500 | FALSE, /* pc_relative. */ | |
501 | 0, /* bitpos. */ | |
502 | complain_overflow_signed, /* complain_on_overflow. */ | |
503 | bfin_imm16_reloc, /* special_function. */ | |
504 | "R_rimm16", /* name. */ | |
505 | FALSE, /* partial_inplace. */ | |
f4707595 | 506 | 0, /* src_mask. */ |
0f64bb02 CM |
507 | 0x0000FFFF, /* dst_mask. */ |
508 | TRUE), /* pcrel_offset. */ | |
509 | ||
510 | HOWTO (R_luimm16, /* type. */ | |
511 | 0, /* rightshift. */ | |
512 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
513 | 16, /* bitsize. */ | |
514 | FALSE, /* pc_relative. */ | |
515 | 0, /* bitpos. */ | |
516 | complain_overflow_dont, /* complain_on_overflow. */ | |
517 | bfin_imm16_reloc, /* special_function. */ | |
518 | "R_luimm16", /* name. */ | |
519 | FALSE, /* partial_inplace. */ | |
f4707595 | 520 | 0, /* src_mask. */ |
0f64bb02 CM |
521 | 0x0000FFFF, /* dst_mask. */ |
522 | TRUE), /* pcrel_offset. */ | |
3b55e94a | 523 | |
0f64bb02 CM |
524 | HOWTO (R_huimm16, /* type. */ |
525 | 16, /* rightshift. */ | |
526 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
527 | 16, /* bitsize. */ | |
528 | FALSE, /* pc_relative. */ | |
529 | 0, /* bitpos. */ | |
530 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
531 | bfin_imm16_reloc, /* special_function. */ | |
532 | "R_huimm16", /* name. */ | |
533 | FALSE, /* partial_inplace. */ | |
f4707595 | 534 | 0, /* src_mask. */ |
0f64bb02 CM |
535 | 0x0000FFFF, /* dst_mask. */ |
536 | TRUE), /* pcrel_offset. */ | |
537 | ||
538 | HOWTO (R_pcrel12_jump_s, /* type. */ | |
539 | 1, /* rightshift. */ | |
540 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
541 | 12, /* bitsize. */ | |
542 | TRUE, /* pc_relative. */ | |
543 | 0, /* bitpos. */ | |
544 | complain_overflow_signed, /* complain_on_overflow. */ | |
545 | bfin_bfd_reloc, /* special_function. */ | |
546 | "R_pcrel12_jump_s", /* name. */ | |
547 | FALSE, /* partial_inplace. */ | |
f4707595 | 548 | 0, /* src_mask. */ |
0f64bb02 CM |
549 | 0x00000FFF, /* dst_mask. */ |
550 | TRUE), /* pcrel_offset. */ | |
551 | ||
552 | HOWTO (R_pcrel24_jump_x, /* type. */ | |
553 | 1, /* rightshift. */ | |
554 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
555 | 24, /* bitsize. */ | |
556 | TRUE, /* pc_relative. */ | |
557 | 0, /* bitpos. */ | |
558 | complain_overflow_signed, /* complain_on_overflow. */ | |
559 | bfin_pcrel24_reloc, /* special_function. */ | |
560 | "R_pcrel24_jump_x", /* name. */ | |
561 | FALSE, /* partial_inplace. */ | |
f4707595 | 562 | 0, /* src_mask. */ |
0f64bb02 CM |
563 | 0x00FFFFFF, /* dst_mask. */ |
564 | TRUE), /* pcrel_offset. */ | |
565 | ||
566 | HOWTO (R_pcrel24, /* type. */ | |
567 | 1, /* rightshift. */ | |
568 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
569 | 24, /* bitsize. */ | |
570 | TRUE, /* pc_relative. */ | |
571 | 0, /* bitpos. */ | |
572 | complain_overflow_signed, /* complain_on_overflow. */ | |
573 | bfin_pcrel24_reloc, /* special_function. */ | |
574 | "R_pcrel24", /* name. */ | |
575 | FALSE, /* partial_inplace. */ | |
f4707595 | 576 | 0, /* src_mask. */ |
0f64bb02 CM |
577 | 0x00FFFFFF, /* dst_mask. */ |
578 | TRUE), /* pcrel_offset. */ | |
579 | ||
580 | HOWTO (R_unusedb, /* type. */ | |
581 | 0, /* rightshift. */ | |
582 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
583 | 32, /* bitsize. */ | |
584 | FALSE, /* pc_relative. */ | |
585 | 0, /* bitpos. */ | |
586 | complain_overflow_dont, /* complain_on_overflow. */ | |
587 | bfd_elf_generic_reloc, /* special_function. */ | |
588 | "R_unusedb", /* name. */ | |
589 | FALSE, /* partial_inplace. */ | |
590 | 0, /* src_mask. */ | |
591 | 0, /* dst_mask. */ | |
592 | FALSE), /* pcrel_offset. */ | |
593 | ||
594 | HOWTO (R_unusedc, /* type. */ | |
595 | 0, /* rightshift. */ | |
596 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
597 | 32, /* bitsize. */ | |
598 | FALSE, /* pc_relative. */ | |
599 | 0, /* bitpos. */ | |
600 | complain_overflow_dont, /* complain_on_overflow. */ | |
601 | bfd_elf_generic_reloc, /* special_function. */ | |
602 | "R_unusedc", /* name. */ | |
603 | FALSE, /* partial_inplace. */ | |
604 | 0, /* src_mask. */ | |
605 | 0, /* dst_mask. */ | |
606 | FALSE), /* pcrel_offset. */ | |
607 | ||
608 | HOWTO (R_pcrel24_jump_l, /* type. */ | |
609 | 1, /* rightshift. */ | |
610 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
611 | 24, /* bitsize. */ | |
612 | TRUE, /* pc_relative. */ | |
613 | 0, /* bitpos. */ | |
614 | complain_overflow_signed, /* complain_on_overflow. */ | |
615 | bfin_pcrel24_reloc, /* special_function. */ | |
616 | "R_pcrel24_jump_l", /* name. */ | |
617 | FALSE, /* partial_inplace. */ | |
f4707595 | 618 | 0, /* src_mask. */ |
0f64bb02 CM |
619 | 0x00FFFFFF, /* dst_mask. */ |
620 | TRUE), /* pcrel_offset. */ | |
621 | ||
622 | HOWTO (R_pcrel24_call_x, /* type. */ | |
623 | 1, /* rightshift. */ | |
624 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
625 | 24, /* bitsize. */ | |
626 | TRUE, /* pc_relative. */ | |
627 | 0, /* bitpos. */ | |
628 | complain_overflow_signed, /* complain_on_overflow. */ | |
629 | bfin_pcrel24_reloc, /* special_function. */ | |
630 | "R_pcrel24_call_x", /* name. */ | |
631 | FALSE, /* partial_inplace. */ | |
f4707595 | 632 | 0, /* src_mask. */ |
0f64bb02 CM |
633 | 0x00FFFFFF, /* dst_mask. */ |
634 | TRUE), /* pcrel_offset. */ | |
635 | ||
636 | HOWTO (R_var_eq_symb, /* type. */ | |
637 | 0, /* rightshift. */ | |
638 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
639 | 32, /* bitsize. */ | |
640 | FALSE, /* pc_relative. */ | |
641 | 0, /* bitpos. */ | |
642 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
643 | bfin_bfd_reloc, /* special_function. */ | |
644 | "R_var_eq_symb", /* name. */ | |
645 | FALSE, /* partial_inplace. */ | |
646 | 0, /* src_mask. */ | |
647 | 0, /* dst_mask. */ | |
648 | FALSE), /* pcrel_offset. */ | |
649 | ||
650 | HOWTO (R_byte_data, /* type. */ | |
651 | 0, /* rightshift. */ | |
652 | 0, /* size (0 = byte, 1 = short, 2 = long). */ | |
653 | 8, /* bitsize. */ | |
654 | FALSE, /* pc_relative. */ | |
655 | 0, /* bitpos. */ | |
656 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
657 | bfin_bfd_reloc, /* special_function. */ | |
658 | "R_byte_data", /* name. */ | |
659 | FALSE, /* partial_inplace. */ | |
f4707595 | 660 | 0, /* src_mask. */ |
0f64bb02 CM |
661 | 0xFF, /* dst_mask. */ |
662 | TRUE), /* pcrel_offset. */ | |
663 | ||
664 | HOWTO (R_byte2_data, /* type. */ | |
665 | 0, /* rightshift. */ | |
666 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
667 | 16, /* bitsize. */ | |
668 | FALSE, /* pc_relative. */ | |
669 | 0, /* bitpos. */ | |
670 | complain_overflow_signed, /* complain_on_overflow. */ | |
671 | bfin_bfd_reloc, /* special_function. */ | |
672 | "R_byte2_data", /* name. */ | |
673 | FALSE, /* partial_inplace. */ | |
f4707595 | 674 | 0, /* src_mask. */ |
0f64bb02 CM |
675 | 0xFFFF, /* dst_mask. */ |
676 | TRUE), /* pcrel_offset. */ | |
677 | ||
678 | HOWTO (R_byte4_data, /* type. */ | |
679 | 0, /* rightshift. */ | |
680 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
681 | 32, /* bitsize. */ | |
682 | FALSE, /* pc_relative. */ | |
683 | 0, /* bitpos. */ | |
684 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
685 | bfin_byte4_reloc, /* special_function. */ | |
686 | "R_byte4_data", /* name. */ | |
687 | FALSE, /* partial_inplace. */ | |
f4707595 | 688 | 0, /* src_mask. */ |
0f64bb02 CM |
689 | 0xFFFFFFFF, /* dst_mask. */ |
690 | TRUE), /* pcrel_offset. */ | |
691 | ||
692 | HOWTO (R_pcrel11, /* type. */ | |
693 | 1, /* rightshift. */ | |
694 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
695 | 10, /* bitsize. */ | |
696 | TRUE, /* pc_relative. */ | |
697 | 0, /* bitpos. */ | |
698 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
699 | bfin_bfd_reloc, /* special_function. */ | |
700 | "R_pcrel11", /* name. */ | |
701 | FALSE, /* partial_inplace. */ | |
f4707595 | 702 | 0, /* src_mask. */ |
0f64bb02 CM |
703 | 0x000003FF, /* dst_mask. */ |
704 | FALSE), /* pcrel_offset. */ | |
705 | }; | |
706 | ||
0f64bb02 CM |
707 | static reloc_howto_type bfin_gnuext_howto_table [] = |
708 | { | |
709 | HOWTO (R_pltpc, /* type. */ | |
710 | 0, /* rightshift. */ | |
711 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
712 | 16, /* bitsize. */ | |
713 | FALSE, /* pc_relative. */ | |
714 | 0, /* bitpos. */ | |
715 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
716 | bfin_pltpc_reloc, /* special_function. */ | |
717 | "R_pltpc", /* name. */ | |
718 | FALSE, /* partial_inplace. */ | |
719 | 0xffff, /* src_mask. */ | |
720 | 0xffff, /* dst_mask. */ | |
721 | FALSE), /* pcrel_offset. */ | |
722 | ||
723 | HOWTO (R_got, /* type. */ | |
724 | 0, /* rightshift. */ | |
725 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
726 | 16, /* bitsize. */ | |
727 | FALSE, /* pc_relative. */ | |
728 | 0, /* bitpos. */ | |
729 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
730 | bfd_elf_generic_reloc, /* special_function. */ | |
731 | "R_got", /* name. */ | |
732 | FALSE, /* partial_inplace. */ | |
733 | 0x7fff, /* src_mask. */ | |
734 | 0x7fff, /* dst_mask. */ | |
735 | FALSE), /* pcrel_offset. */ | |
736 | ||
737 | /* GNU extension to record C++ vtable hierarchy. */ | |
738 | HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */ | |
739 | 0, /* rightshift. */ | |
740 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
741 | 0, /* bitsize. */ | |
742 | FALSE, /* pc_relative. */ | |
743 | 0, /* bitpos. */ | |
744 | complain_overflow_dont, /* complain_on_overflow. */ | |
745 | NULL, /* special_function. */ | |
746 | "R_BFIN_GNU_VTINHERIT", /* name. */ | |
747 | FALSE, /* partial_inplace. */ | |
748 | 0, /* src_mask. */ | |
749 | 0, /* dst_mask. */ | |
750 | FALSE), /* pcrel_offset. */ | |
751 | ||
752 | /* GNU extension to record C++ vtable member usage. */ | |
753 | HOWTO (R_BFIN_GNU_VTENTRY, /* type. */ | |
754 | 0, /* rightshift. */ | |
755 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
756 | 0, /* bitsize. */ | |
757 | FALSE, /* pc_relative. */ | |
758 | 0, /* bitpos. */ | |
759 | complain_overflow_dont, /* complain_on_overflow. */ | |
760 | _bfd_elf_rel_vtable_reloc_fn, /* special_function. */ | |
761 | "R_BFIN_GNU_VTENTRY", /* name. */ | |
762 | FALSE, /* partial_inplace. */ | |
763 | 0, /* src_mask. */ | |
764 | 0, /* dst_mask. */ | |
765 | FALSE) /* pcrel_offset. */ | |
766 | }; | |
767 | ||
768 | struct bfin_reloc_map | |
769 | { | |
770 | bfd_reloc_code_real_type bfd_reloc_val; | |
771 | unsigned int bfin_reloc_val; | |
772 | }; | |
773 | ||
774 | static const struct bfin_reloc_map bfin_reloc_map [] = | |
775 | { | |
776 | { BFD_RELOC_NONE, R_unused0 }, | |
777 | { BFD_RELOC_BFIN_5_PCREL, R_pcrel5m2 }, | |
778 | { BFD_RELOC_NONE, R_unused1 }, | |
779 | { BFD_RELOC_BFIN_10_PCREL, R_pcrel10 }, | |
780 | { BFD_RELOC_BFIN_12_PCREL_JUMP, R_pcrel12_jump }, | |
781 | { BFD_RELOC_BFIN_16_IMM, R_rimm16 }, | |
782 | { BFD_RELOC_BFIN_16_LOW, R_luimm16 }, | |
783 | { BFD_RELOC_BFIN_16_HIGH, R_huimm16 }, | |
784 | { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_pcrel12_jump_s }, | |
785 | { BFD_RELOC_24_PCREL, R_pcrel24 }, | |
786 | { BFD_RELOC_24_PCREL, R_pcrel24 }, | |
787 | { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_pcrel24_jump_l }, | |
788 | { BFD_RELOC_NONE, R_unusedb }, | |
789 | { BFD_RELOC_NONE, R_unusedc }, | |
790 | { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_pcrel24_call_x }, | |
791 | { BFD_RELOC_8, R_byte_data }, | |
792 | { BFD_RELOC_16, R_byte2_data }, | |
793 | { BFD_RELOC_32, R_byte4_data }, | |
794 | { BFD_RELOC_BFIN_11_PCREL, R_pcrel11 }, | |
795 | { BFD_RELOC_BFIN_GOT, R_got }, | |
796 | { BFD_RELOC_BFIN_PLTPC, R_pltpc }, | |
797 | { BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT }, | |
798 | { BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY }, | |
0f64bb02 CM |
799 | }; |
800 | ||
801 | ||
802 | static void | |
803 | bfin_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
804 | arelent *cache_ptr, | |
805 | Elf_Internal_Rela *dst) | |
806 | { | |
807 | unsigned int r_type; | |
808 | ||
809 | r_type = ELF32_R_TYPE (dst->r_info); | |
810 | ||
811 | if (r_type <= BFIN_RELOC_MAX) | |
812 | cache_ptr->howto = &bfin_howto_table [r_type]; | |
813 | ||
0f64bb02 CM |
814 | else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
815 | cache_ptr->howto = &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; | |
816 | ||
817 | else | |
818 | cache_ptr->howto = (reloc_howto_type *) NULL; | |
819 | ||
820 | } | |
821 | /* Given a BFD reloc type, return the howto. */ | |
822 | static reloc_howto_type * | |
823 | bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
824 | bfd_reloc_code_real_type code) | |
825 | { | |
826 | unsigned int i; | |
827 | unsigned int r_type = BFIN_RELOC_MIN; | |
828 | ||
829 | for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); --i;) | |
830 | if (bfin_reloc_map[i].bfd_reloc_val == code) | |
831 | r_type = bfin_reloc_map[i].bfin_reloc_val; | |
832 | ||
833 | if (r_type <= BFIN_RELOC_MAX && r_type > BFIN_RELOC_MIN) | |
834 | return &bfin_howto_table [r_type]; | |
835 | ||
0f64bb02 CM |
836 | else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
837 | return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; | |
838 | ||
839 | return (reloc_howto_type *) NULL; | |
840 | ||
841 | } | |
842 | /* Given a bfin relocation type, return the howto. */ | |
843 | static reloc_howto_type * | |
844 | bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
845 | unsigned int r_type) | |
846 | { | |
847 | if (r_type <= BFIN_RELOC_MAX) | |
848 | return &bfin_howto_table [r_type]; | |
849 | ||
0f64bb02 CM |
850 | else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
851 | return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; | |
852 | ||
853 | return (reloc_howto_type *) NULL; | |
854 | ||
855 | } | |
856 | ||
857 | /* Return TRUE if the name is a local label. | |
858 | bfin local labels begin with L$. */ | |
859 | static bfd_boolean | |
860 | bfin_is_local_label_name ( | |
861 | bfd *abfd ATTRIBUTE_UNUSED, | |
862 | const char *label) | |
863 | { | |
864 | if (label[0] == 'L' && label[1] == '$' ) | |
865 | return TRUE; | |
866 | ||
867 | return _bfd_elf_is_local_label_name (abfd, label); | |
868 | } | |
869 | ||
870 | ||
871 | /* Look through the relocs for a section during the first phase, and | |
872 | allocate space in the global offset table or procedure linkage | |
873 | table. */ | |
874 | ||
875 | static bfd_boolean | |
876 | bfin_check_relocs (bfd * abfd, | |
877 | struct bfd_link_info *info, | |
878 | asection *sec, | |
879 | const Elf_Internal_Rela *relocs) | |
880 | { | |
881 | bfd *dynobj; | |
882 | Elf_Internal_Shdr *symtab_hdr; | |
883 | struct elf_link_hash_entry **sym_hashes; | |
884 | bfd_signed_vma *local_got_refcounts; | |
885 | const Elf_Internal_Rela *rel; | |
886 | const Elf_Internal_Rela *rel_end; | |
887 | asection *sgot; | |
888 | asection *srelgot; | |
889 | asection *sreloc; | |
890 | if (info->relocatable) | |
891 | return TRUE; | |
892 | ||
893 | dynobj = elf_hash_table (info)->dynobj; | |
894 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
895 | sym_hashes = elf_sym_hashes (abfd); | |
896 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
897 | ||
898 | sgot = NULL; | |
899 | srelgot = NULL; | |
900 | sreloc = NULL; | |
901 | ||
902 | rel_end = relocs + sec->reloc_count; | |
903 | for (rel = relocs; rel < rel_end; rel++) | |
904 | { | |
905 | unsigned long r_symndx; | |
906 | struct elf_link_hash_entry *h; | |
907 | ||
908 | r_symndx = ELF32_R_SYM (rel->r_info); | |
909 | if (r_symndx < symtab_hdr->sh_info) | |
910 | h = NULL; | |
911 | else | |
912 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
913 | ||
914 | switch (ELF32_R_TYPE (rel->r_info)) | |
915 | { | |
916 | /* This relocation describes the C++ object vtable hierarchy. | |
917 | Reconstruct it for later use during GC. */ | |
918 | case R_BFIN_GNU_VTINHERIT: | |
919 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
920 | return FALSE; | |
921 | break; | |
922 | ||
923 | /* This relocation describes which C++ vtable entries | |
924 | are actually used. Record for later use during GC. */ | |
925 | case R_BFIN_GNU_VTENTRY: | |
926 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
927 | return FALSE; | |
928 | break; | |
929 | ||
930 | case R_got: | |
931 | if (h != NULL | |
932 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
933 | break; | |
934 | /* Fall through. */ | |
935 | ||
936 | if (dynobj == NULL) | |
937 | { | |
938 | /* Create the .got section. */ | |
939 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
940 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
941 | return FALSE; | |
942 | } | |
943 | ||
944 | if (sgot == NULL) | |
945 | { | |
946 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
947 | BFD_ASSERT (sgot != NULL); | |
948 | } | |
949 | ||
950 | if (srelgot == NULL && (h != NULL || info->shared)) | |
951 | { | |
952 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
953 | if (srelgot == NULL) | |
954 | { | |
955 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
956 | if (srelgot == NULL | |
957 | || !bfd_set_section_flags (dynobj, srelgot, | |
958 | (SEC_ALLOC | |
959 | | SEC_LOAD | |
960 | | SEC_HAS_CONTENTS | |
961 | | SEC_IN_MEMORY | |
962 | | SEC_LINKER_CREATED | |
963 | | SEC_READONLY)) | |
964 | || !bfd_set_section_alignment (dynobj, srelgot, 2)) | |
965 | return FALSE; | |
966 | } | |
967 | } | |
968 | ||
969 | if (h != NULL) | |
970 | { | |
971 | if (h->got.refcount == 0) | |
972 | { | |
973 | /* Make sure this symbol is output as a dynamic symbol. */ | |
974 | if (h->dynindx == -1 && !h->forced_local) | |
975 | { | |
976 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
977 | return FALSE; | |
978 | } | |
979 | ||
980 | /* Allocate space in the .got section. */ | |
981 | sgot->size += 4; | |
982 | /* Allocate relocation space. */ | |
983 | srelgot->size += sizeof (Elf32_External_Rela); | |
984 | } | |
985 | h->got.refcount++; | |
986 | } | |
987 | else | |
988 | { | |
989 | /* This is a global offset table entry for a local symbol. */ | |
990 | if (local_got_refcounts == NULL) | |
991 | { | |
992 | bfd_size_type size; | |
993 | ||
994 | size = symtab_hdr->sh_info; | |
995 | size *= sizeof (bfd_signed_vma); | |
996 | local_got_refcounts = ((bfd_signed_vma *) | |
997 | bfd_zalloc (abfd, size)); | |
998 | if (local_got_refcounts == NULL) | |
999 | return FALSE; | |
1000 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1001 | } | |
1002 | if (local_got_refcounts[r_symndx] == 0) | |
1003 | { | |
1004 | sgot->size += 4; | |
1005 | if (info->shared) | |
1006 | { | |
1007 | /* If we are generating a shared object, we need to | |
1008 | output a R_68K_RELATIVE reloc so that the dynamic | |
1009 | linker can adjust this GOT entry. */ | |
1010 | srelgot->size += sizeof (Elf32_External_Rela); | |
1011 | } | |
1012 | } | |
1013 | local_got_refcounts[r_symndx]++; | |
1014 | } | |
1015 | break; | |
1016 | ||
1017 | default: | |
1018 | break; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | return TRUE; | |
1023 | } | |
1024 | ||
1025 | static enum elf_reloc_type_class | |
1026 | elf32_bfin_reloc_type_class (const Elf_Internal_Rela * rela) | |
1027 | { | |
1028 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1029 | { | |
1030 | default: | |
1031 | return reloc_class_normal; | |
1032 | } | |
1033 | } | |
f4707595 | 1034 | |
0f64bb02 CM |
1035 | static bfd_boolean |
1036 | bfin_relocate_section (bfd * output_bfd, | |
1037 | struct bfd_link_info *info, | |
1038 | bfd * input_bfd, | |
1039 | asection * input_section, | |
1040 | bfd_byte * contents, | |
1041 | Elf_Internal_Rela * relocs, | |
1042 | Elf_Internal_Sym * local_syms, | |
1043 | asection ** local_sections) | |
1044 | { | |
1045 | bfd *dynobj; | |
1046 | Elf_Internal_Shdr *symtab_hdr; | |
1047 | struct elf_link_hash_entry **sym_hashes; | |
1048 | bfd_vma *local_got_offsets; | |
1049 | asection *sgot; | |
1050 | asection *sreloc; | |
1051 | Elf_Internal_Rela *rel; | |
1052 | Elf_Internal_Rela *relend; | |
0f64bb02 CM |
1053 | int i = 0; |
1054 | ||
1055 | if (info->relocatable) | |
1056 | return TRUE; | |
1057 | ||
1058 | dynobj = elf_hash_table (info)->dynobj; | |
1059 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1060 | sym_hashes = elf_sym_hashes (input_bfd); | |
1061 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1062 | ||
1063 | sgot = NULL; | |
1064 | sreloc = NULL; | |
1065 | ||
1066 | rel = relocs; | |
1067 | relend = relocs + input_section->reloc_count; | |
1068 | for (; rel < relend; rel++, i++) | |
1069 | { | |
1070 | int r_type; | |
1071 | reloc_howto_type *howto; | |
1072 | unsigned long r_symndx; | |
1073 | struct elf_link_hash_entry *h; | |
1074 | Elf_Internal_Sym *sym; | |
1075 | asection *sec; | |
1076 | bfd_vma relocation = 0; | |
1077 | bfd_boolean unresolved_reloc; | |
1078 | bfd_reloc_status_type r; | |
f4707595 | 1079 | bfd_vma address; |
0f64bb02 CM |
1080 | |
1081 | r_type = ELF32_R_TYPE (rel->r_info); | |
1082 | if (r_type < 0 || r_type >= 243) | |
1083 | { | |
1084 | bfd_set_error (bfd_error_bad_value); | |
1085 | return FALSE; | |
1086 | } | |
1087 | ||
1088 | if (r_type == R_BFIN_GNU_VTENTRY | |
1089 | || r_type == R_BFIN_GNU_VTINHERIT) | |
1090 | continue; | |
1091 | ||
1092 | howto = bfin_reloc_type_lookup (input_bfd, r_type); | |
1093 | if (howto == NULL) | |
1094 | { | |
1095 | bfd_set_error (bfd_error_bad_value); | |
1096 | return FALSE; | |
1097 | } | |
1098 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1099 | ||
1100 | h = NULL; | |
1101 | sym = NULL; | |
1102 | sec = NULL; | |
1103 | unresolved_reloc = FALSE; | |
1104 | ||
1105 | if (r_symndx < symtab_hdr->sh_info) | |
1106 | { | |
1107 | sym = local_syms + r_symndx; | |
1108 | sec = local_sections[r_symndx]; | |
1109 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
0f64bb02 CM |
1110 | } |
1111 | else | |
1112 | { | |
3b55e94a BS |
1113 | bfd_boolean warned; |
1114 | h = NULL; | |
1115 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
1116 | r_symndx, symtab_hdr, sym_hashes, | |
1117 | h, sec, relocation, | |
1118 | unresolved_reloc, warned); | |
0f64bb02 CM |
1119 | } |
1120 | ||
f4707595 | 1121 | address = rel->r_offset; |
f4707595 JZ |
1122 | |
1123 | /* Then, process normally. */ | |
0f64bb02 CM |
1124 | switch (r_type) |
1125 | { | |
1126 | case R_BFIN_GNU_VTINHERIT: | |
1127 | case R_BFIN_GNU_VTENTRY: | |
1128 | return bfd_reloc_ok; | |
1129 | ||
1130 | case R_got: | |
1131 | /* Relocation is to the address of the entry for this symbol | |
1132 | in the global offset table. */ | |
1133 | if (h != NULL | |
1134 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
f4707595 | 1135 | goto do_default; |
0f64bb02 CM |
1136 | /* Fall through. */ |
1137 | /* Relocation is the offset of the entry for this symbol in | |
1138 | the global offset table. */ | |
1139 | ||
1140 | { | |
1141 | bfd_vma off; | |
1142 | ||
1143 | if (sgot == NULL) | |
1144 | { | |
1145 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1146 | BFD_ASSERT (sgot != NULL); | |
1147 | } | |
1148 | ||
1149 | if (h != NULL) | |
1150 | { | |
1151 | bfd_boolean dyn; | |
1152 | ||
1153 | off = h->got.offset; | |
1154 | BFD_ASSERT (off != (bfd_vma) - 1); | |
0f64bb02 | 1155 | dyn = elf_hash_table (info)->dynamic_sections_created; |
f4707595 | 1156 | |
0f64bb02 CM |
1157 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
1158 | || (info->shared | |
1159 | && (info->symbolic | |
1160 | || h->dynindx == -1 | |
f4707595 JZ |
1161 | || h->forced_local) |
1162 | && h->def_regular)) | |
0f64bb02 CM |
1163 | { |
1164 | /* This is actually a static link, or it is a | |
1165 | -Bsymbolic link and the symbol is defined | |
1166 | locally, or the symbol was forced to be local | |
1167 | because of a version file.. We must initialize | |
1168 | this entry in the global offset table. Since | |
1169 | the offset must always be a multiple of 4, we | |
1170 | use the least significant bit to record whether | |
1171 | we have initialized it already. | |
1172 | ||
1173 | When doing a dynamic link, we create a .rela.got | |
1174 | relocation entry to initialize the value. This | |
1175 | is done in the finish_dynamic_symbol routine. */ | |
1176 | if ((off & 1) != 0) | |
1177 | off &= ~1; | |
1178 | else | |
1179 | { | |
1180 | bfd_put_32 (output_bfd, relocation, | |
1181 | sgot->contents + off); | |
1182 | h->got.offset |= 1; | |
1183 | } | |
1184 | } | |
1185 | else | |
1186 | unresolved_reloc = FALSE; | |
1187 | } | |
1188 | else | |
1189 | { | |
f4707595 | 1190 | BFD_ASSERT (local_got_offsets != NULL); |
0f64bb02 | 1191 | off = local_got_offsets[r_symndx]; |
f4707595 | 1192 | BFD_ASSERT (off != (bfd_vma) - 1); |
0f64bb02 CM |
1193 | |
1194 | /* The offset must always be a multiple of 4. We use | |
1195 | the least significant bit to record whether we have | |
1196 | already generated the necessary reloc. */ | |
1197 | if ((off & 1) != 0) | |
1198 | off &= ~1; | |
1199 | else | |
1200 | { | |
0f64bb02 CM |
1201 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); |
1202 | ||
1203 | if (info->shared) | |
1204 | { | |
1205 | asection *s; | |
1206 | Elf_Internal_Rela outrel; | |
1207 | bfd_byte *loc; | |
1208 | ||
1209 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1210 | BFD_ASSERT (s != NULL); | |
1211 | ||
1212 | outrel.r_offset = (sgot->output_section->vma | |
1213 | + sgot->output_offset + off); | |
1214 | outrel.r_info = | |
1215 | ELF32_R_INFO (0, R_pcrel24); | |
1216 | outrel.r_addend = relocation; | |
1217 | loc = s->contents; | |
1218 | loc += | |
1219 | s->reloc_count++ * sizeof (Elf32_External_Rela); | |
1220 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1221 | } | |
1222 | ||
1223 | local_got_offsets[r_symndx] |= 1; | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | relocation = sgot->output_offset + off; | |
1228 | rel->r_addend = 0; | |
1229 | /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */ | |
1230 | relocation /= 4; | |
1231 | } | |
f4707595 JZ |
1232 | goto do_default; |
1233 | ||
1234 | case R_pcrel24: | |
1235 | case R_pcrel24_jump_l: | |
1236 | { | |
1237 | bfd_vma x; | |
1238 | ||
1239 | relocation += rel->r_addend; | |
1240 | ||
1241 | /* Perform usual pc-relative correction. */ | |
1242 | relocation -= input_section->output_section->vma + input_section->output_offset; | |
1243 | relocation -= address; | |
1244 | ||
1245 | /* We are getting reloc_entry->address 2 byte off from | |
1246 | the start of instruction. Assuming absolute postion | |
3b55e94a | 1247 | of the reloc data. But, following code had been written assuming |
f4707595 | 1248 | reloc address is starting at begining of instruction. |
3b55e94a BS |
1249 | To compensate that I have increased the value of |
1250 | relocation by 1 (effectively 2) and used the addr -2 instead of addr. */ | |
f4707595 JZ |
1251 | |
1252 | relocation += 2; | |
1253 | address -= 2; | |
1254 | ||
1255 | relocation >>= 1; | |
1256 | ||
1257 | x = bfd_get_16 (input_bfd, contents + address); | |
1258 | x = (x & 0xff00) | ((relocation >> 16) & 0xff); | |
1259 | bfd_put_16 (input_bfd, x, contents + address); | |
1260 | ||
1261 | x = bfd_get_16 (input_bfd, contents + address + 2); | |
1262 | x = relocation & 0xFFFF; | |
1263 | bfd_put_16 (input_bfd, x, contents + address + 2); | |
1264 | r = bfd_reloc_ok; | |
1265 | } | |
0f64bb02 CM |
1266 | break; |
1267 | ||
1268 | default: | |
f4707595 JZ |
1269 | do_default: |
1270 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1271 | contents, address, | |
1272 | relocation, rel->r_addend); | |
1273 | ||
0f64bb02 CM |
1274 | break; |
1275 | } | |
1276 | ||
1277 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
1278 | because such sections are not SEC_ALLOC and thus ld.so will | |
1279 | not process them. */ | |
1280 | if (unresolved_reloc | |
1281 | && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)) | |
1282 | { | |
1283 | (*_bfd_error_handler) | |
1284 | (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"), | |
1285 | input_bfd, | |
1286 | input_section, (long) rel->r_offset, h->root.root.string); | |
1287 | return FALSE; | |
1288 | } | |
1289 | ||
0f64bb02 CM |
1290 | if (r != bfd_reloc_ok) |
1291 | { | |
1292 | const char *name; | |
1293 | ||
1294 | if (h != NULL) | |
1295 | name = h->root.root.string; | |
1296 | else | |
1297 | { | |
1298 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1299 | symtab_hdr->sh_link, | |
1300 | sym->st_name); | |
1301 | if (name == NULL) | |
1302 | return FALSE; | |
1303 | if (*name == '\0') | |
1304 | name = bfd_section_name (input_bfd, sec); | |
1305 | } | |
1306 | ||
1307 | if (r == bfd_reloc_overflow) | |
1308 | { | |
1309 | if (!(info->callbacks->reloc_overflow | |
1310 | (info, (h ? &h->root : NULL), name, howto->name, | |
1311 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset))) | |
1312 | return FALSE; | |
1313 | } | |
1314 | else | |
1315 | { | |
1316 | (*_bfd_error_handler) | |
1317 | (_("%B(%A+0x%lx): reloc against `%s': error %d"), | |
1318 | input_bfd, input_section, | |
1319 | (long) rel->r_offset, name, (int) r); | |
1320 | return FALSE; | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | return TRUE; | |
1326 | } | |
1327 | ||
1328 | static asection * | |
1329 | bfin_gc_mark_hook (asection * sec, | |
1330 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1331 | Elf_Internal_Rela * rel, | |
1332 | struct elf_link_hash_entry *h, | |
1333 | Elf_Internal_Sym * sym) | |
1334 | { | |
1335 | if (h != NULL) | |
1336 | { | |
1337 | switch (ELF32_R_TYPE (rel->r_info)) | |
1338 | { | |
1339 | ||
1340 | case R_BFIN_GNU_VTINHERIT: | |
1341 | case R_BFIN_GNU_VTENTRY: | |
1342 | break; | |
1343 | ||
1344 | default: | |
1345 | switch (h->root.type) | |
1346 | { | |
1347 | default: | |
1348 | break; | |
1349 | ||
1350 | case bfd_link_hash_defined: | |
1351 | case bfd_link_hash_defweak: | |
1352 | return h->root.u.def.section; | |
1353 | ||
1354 | case bfd_link_hash_common: | |
1355 | return h->root.u.c.p->section; | |
1356 | } | |
1357 | } | |
1358 | } | |
1359 | else | |
1360 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
1361 | ||
1362 | return NULL; | |
1363 | } | |
1364 | ||
1365 | ||
1366 | /* Update the got entry reference counts for the section being removed. */ | |
1367 | ||
1368 | static bfd_boolean | |
1369 | bfin_gc_sweep_hook (bfd * abfd, | |
1370 | struct bfd_link_info *info, | |
1371 | asection * sec, | |
1372 | const Elf_Internal_Rela * relocs) | |
1373 | { | |
1374 | Elf_Internal_Shdr *symtab_hdr; | |
1375 | struct elf_link_hash_entry **sym_hashes; | |
1376 | bfd_signed_vma *local_got_refcounts; | |
1377 | const Elf_Internal_Rela *rel, *relend; | |
1378 | bfd *dynobj; | |
1379 | asection *sgot; | |
1380 | asection *srelgot; | |
1381 | ||
1382 | dynobj = elf_hash_table (info)->dynobj; | |
1383 | if (dynobj == NULL) | |
1384 | return TRUE; | |
1385 | ||
1386 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1387 | sym_hashes = elf_sym_hashes (abfd); | |
1388 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1389 | ||
1390 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1391 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1392 | ||
1393 | relend = relocs + sec->reloc_count; | |
1394 | for (rel = relocs; rel < relend; rel++) | |
1395 | { | |
1396 | unsigned long r_symndx; | |
1397 | struct elf_link_hash_entry *h; | |
1398 | ||
1399 | switch (ELF32_R_TYPE (rel->r_info)) | |
1400 | { | |
1401 | case R_got: | |
1402 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1403 | if (r_symndx >= symtab_hdr->sh_info) | |
1404 | { | |
1405 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1406 | if (h->got.refcount > 0) | |
1407 | { | |
1408 | --h->got.refcount; | |
1409 | if (h->got.refcount == 0) | |
1410 | { | |
1411 | /* We don't need the .got entry any more. */ | |
1412 | sgot->size -= 4; | |
1413 | srelgot->size -= sizeof (Elf32_External_Rela); | |
1414 | } | |
1415 | } | |
1416 | } | |
1417 | else if (local_got_refcounts != NULL) | |
1418 | { | |
1419 | if (local_got_refcounts[r_symndx] > 0) | |
1420 | { | |
1421 | --local_got_refcounts[r_symndx]; | |
1422 | if (local_got_refcounts[r_symndx] == 0) | |
1423 | { | |
1424 | /* We don't need the .got entry any more. */ | |
1425 | sgot->size -= 4; | |
1426 | if (info->shared) | |
1427 | srelgot->size -= sizeof (Elf32_External_Rela); | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | break; | |
1432 | default: | |
1433 | break; | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | return TRUE; | |
1438 | } | |
1439 | ||
1440 | ||
1441 | /* Merge backend specific data from an object file to the output | |
1442 | object file when linking. */ | |
1443 | static bfd_boolean | |
1444 | elf32_bfin_merge_private_bfd_data (bfd * ibfd, bfd * obfd) | |
1445 | { | |
1446 | flagword out_flags; | |
1447 | flagword in_flags; | |
1448 | ||
1449 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1450 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1451 | return TRUE; | |
1452 | ||
1453 | in_flags = elf_elfheader (ibfd)->e_flags; | |
1454 | out_flags = elf_elfheader (obfd)->e_flags; | |
1455 | ||
1456 | if (!elf_flags_init (obfd)) | |
1457 | { | |
1458 | elf_flags_init (obfd) = TRUE; | |
1459 | elf_elfheader (obfd)->e_flags = in_flags; | |
1460 | } | |
1461 | ||
1462 | return TRUE; | |
1463 | } | |
1464 | ||
1465 | ||
1466 | static bfd_boolean | |
1467 | elf32_bfin_set_private_flags (bfd * abfd, flagword flags) | |
1468 | { | |
1469 | elf_elfheader (abfd)->e_flags = flags; | |
1470 | elf_flags_init (abfd) = TRUE; | |
1471 | return TRUE; | |
1472 | } | |
1473 | ||
1474 | ||
1475 | /* Display the flags field. */ | |
1476 | static bfd_boolean | |
1477 | elf32_bfin_print_private_bfd_data (bfd * abfd, PTR ptr) | |
1478 | { | |
1479 | FILE *file = (FILE *) ptr; | |
1480 | ||
1481 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
1482 | ||
1483 | /* Print normal ELF private data. */ | |
1484 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
1485 | ||
1486 | /* Ignore init flag - it may not be set, despite the flags field | |
1487 | containing valid data. */ | |
1488 | ||
1489 | /* xgettext:c-format */ | |
1490 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
1491 | ||
1492 | fputc ('\n', file); | |
1493 | ||
1494 | return TRUE; | |
1495 | } | |
1496 | ||
1497 | /* bfin ELF linker hash entry. */ | |
1498 | ||
1499 | struct bfin_link_hash_entry | |
1500 | { | |
1501 | struct elf_link_hash_entry root; | |
1502 | ||
1503 | /* Number of PC relative relocs copied for this symbol. */ | |
1504 | struct bfin_pcrel_relocs_copied *pcrel_relocs_copied; | |
1505 | }; | |
1506 | ||
1507 | /* bfin ELF linker hash table. */ | |
1508 | ||
1509 | struct bfin_link_hash_table | |
1510 | { | |
1511 | struct elf_link_hash_table root; | |
1512 | ||
1513 | /* Small local sym to section mapping cache. */ | |
1514 | struct sym_sec_cache sym_sec; | |
1515 | }; | |
1516 | ||
1517 | #define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent)) | |
1518 | ||
1519 | static struct bfd_hash_entry * | |
1520 | bfin_link_hash_newfunc (struct bfd_hash_entry *entry, | |
1521 | struct bfd_hash_table *table, const char *string) | |
1522 | { | |
1523 | struct bfd_hash_entry *ret = entry; | |
1524 | ||
1525 | /* Allocate the structure if it has not already been allocated by a | |
1526 | subclass. */ | |
1527 | if (ret == NULL) | |
1528 | ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry)); | |
1529 | if (ret == NULL) | |
1530 | return ret; | |
1531 | ||
1532 | /* Call the allocation method of the superclass. */ | |
1533 | ret = _bfd_elf_link_hash_newfunc (ret, table, string); | |
1534 | if (ret != NULL) | |
1535 | bfin_hash_entry (ret)->pcrel_relocs_copied = NULL; | |
1536 | ||
1537 | return ret; | |
1538 | } | |
1539 | ||
1540 | /* Create an bfin ELF linker hash table. */ | |
1541 | ||
1542 | static struct bfd_link_hash_table * | |
1543 | bfin_link_hash_table_create (bfd * abfd) | |
1544 | { | |
1545 | struct bfin_link_hash_table *ret; | |
1546 | bfd_size_type amt = sizeof (struct bfin_link_hash_table); | |
1547 | ||
1548 | ret = (struct bfin_link_hash_table *) bfd_malloc (amt); | |
1549 | if (ret == (struct bfin_link_hash_table *) NULL) | |
1550 | return NULL; | |
1551 | ||
1552 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
66eb6687 AM |
1553 | bfin_link_hash_newfunc, |
1554 | sizeof (struct bfin_link_hash_entry))) | |
0f64bb02 CM |
1555 | { |
1556 | free (ret); | |
1557 | return NULL; | |
1558 | } | |
1559 | ||
1560 | ret->sym_sec.abfd = NULL; | |
1561 | ||
1562 | return &ret->root.root; | |
1563 | } | |
1564 | ||
1565 | /* The size in bytes of an entry in the procedure linkage table. */ | |
1566 | ||
1567 | /* Finish up the dynamic sections. */ | |
1568 | ||
1569 | static bfd_boolean | |
1570 | bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, | |
1571 | struct bfd_link_info *info) | |
1572 | { | |
1573 | bfd *dynobj; | |
1574 | asection *sdyn; | |
1575 | ||
1576 | dynobj = elf_hash_table (info)->dynobj; | |
1577 | ||
1578 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1579 | ||
1580 | if (elf_hash_table (info)->dynamic_sections_created) | |
1581 | { | |
1582 | Elf32_External_Dyn *dyncon, *dynconend; | |
1583 | ||
1584 | BFD_ASSERT (sdyn != NULL); | |
1585 | ||
1586 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1587 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1588 | for (; dyncon < dynconend; dyncon++) | |
1589 | { | |
1590 | Elf_Internal_Dyn dyn; | |
1591 | ||
1592 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1593 | ||
1594 | } | |
1595 | ||
1596 | } | |
1597 | return TRUE; | |
1598 | } | |
1599 | ||
1600 | /* Finish up dynamic symbol handling. We set the contents of various | |
1601 | dynamic sections here. */ | |
1602 | ||
1603 | static bfd_boolean | |
1604 | bfin_finish_dynamic_symbol (bfd * output_bfd, | |
1605 | struct bfd_link_info *info, | |
1606 | struct elf_link_hash_entry *h, | |
1607 | Elf_Internal_Sym * sym) | |
1608 | { | |
1609 | bfd *dynobj; | |
1610 | ||
1611 | dynobj = elf_hash_table (info)->dynobj; | |
1612 | ||
1613 | if (h->got.offset != (bfd_vma) - 1) | |
1614 | { | |
1615 | asection *sgot; | |
1616 | asection *srela; | |
1617 | Elf_Internal_Rela rela; | |
1618 | bfd_byte *loc; | |
1619 | ||
1620 | /* This symbol has an entry in the global offset table. | |
1621 | Set it up. */ | |
1622 | ||
1623 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1624 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1625 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1626 | ||
1627 | rela.r_offset = (sgot->output_section->vma | |
1628 | + sgot->output_offset | |
1629 | + (h->got.offset & ~(bfd_vma) 1)); | |
1630 | ||
1631 | /* If this is a -Bsymbolic link, and the symbol is defined | |
1632 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
1633 | the symbol was forced to be local because of a version file. | |
1634 | The entry in the global offset table will already have been | |
1635 | initialized in the relocate_section function. */ | |
1636 | if (info->shared | |
1637 | && (info->symbolic | |
1638 | || h->dynindx == -1 || h->forced_local) && h->def_regular) | |
1639 | { | |
1640 | fprintf(stderr, "*** check this relocation %s\n", __FUNCTION__); | |
1641 | rela.r_info = ELF32_R_INFO (0, R_pcrel24); | |
1642 | rela.r_addend = bfd_get_signed_32 (output_bfd, | |
1643 | (sgot->contents | |
1644 | + | |
1645 | (h->got. | |
1646 | offset & ~(bfd_vma) 1))); | |
1647 | } | |
1648 | else | |
1649 | { | |
1650 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
1651 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
1652 | rela.r_info = ELF32_R_INFO (h->dynindx, R_got); | |
1653 | rela.r_addend = 0; | |
1654 | } | |
1655 | ||
1656 | loc = srela->contents; | |
1657 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
1658 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1659 | } | |
1660 | ||
1661 | if (h->needs_copy) | |
1662 | { | |
1663 | BFD_ASSERT (0); | |
1664 | } | |
1665 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
1666 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
22edb2f1 | 1667 | || h == elf_hash_table (info)->hgot) |
0f64bb02 CM |
1668 | sym->st_shndx = SHN_ABS; |
1669 | ||
1670 | return TRUE; | |
1671 | } | |
1672 | ||
1673 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1674 | regular object. The current definition is in some section of the | |
1675 | dynamic object, but we're not including those sections. We have to | |
1676 | change the definition to something the rest of the link can | |
1677 | understand. */ | |
1678 | ||
1679 | static bfd_boolean | |
1680 | bfin_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1681 | struct elf_link_hash_entry *h) | |
1682 | { | |
1683 | bfd *dynobj; | |
1684 | asection *s; | |
1685 | unsigned int power_of_two; | |
1686 | ||
1687 | dynobj = elf_hash_table (info)->dynobj; | |
1688 | ||
1689 | /* Make sure we know what is going on here. */ | |
1690 | BFD_ASSERT (dynobj != NULL | |
1691 | && (h->needs_plt | |
1692 | || h->u.weakdef != NULL | |
1693 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
1694 | ||
1695 | /* If this is a function, put it in the procedure linkage table. We | |
1696 | will fill in the contents of the procedure linkage table later, | |
1697 | when we know the address of the .got section. */ | |
1698 | if (h->type == STT_FUNC || h->needs_plt) | |
1699 | { | |
1700 | BFD_ASSERT(0); | |
1701 | } | |
1702 | ||
1703 | /* If this is a weak symbol, and there is a real definition, the | |
1704 | processor independent code will have arranged for us to see the | |
1705 | real definition first, and we can just use the same value. */ | |
1706 | if (h->u.weakdef != NULL) | |
1707 | { | |
1708 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
1709 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1710 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1711 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
1712 | return TRUE; | |
1713 | } | |
1714 | ||
1715 | /* This is a reference to a symbol defined by a dynamic object which | |
1716 | is not a function. */ | |
1717 | ||
1718 | /* If we are creating a shared library, we must presume that the | |
1719 | only references to the symbol are via the global offset table. | |
1720 | For such cases we need not do anything here; the relocations will | |
1721 | be handled correctly by relocate_section. */ | |
1722 | if (info->shared) | |
1723 | return TRUE; | |
1724 | ||
1725 | /* We must allocate the symbol in our .dynbss section, which will | |
1726 | become part of the .bss section of the executable. There will be | |
1727 | an entry for this symbol in the .dynsym section. The dynamic | |
1728 | object will contain position independent code, so all references | |
1729 | from the dynamic object to this symbol will go through the global | |
1730 | offset table. The dynamic linker will use the .dynsym entry to | |
1731 | determine the address it must put in the global offset table, so | |
1732 | both the dynamic object and the regular object will refer to the | |
1733 | same memory location for the variable. */ | |
1734 | ||
1735 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1736 | BFD_ASSERT (s != NULL); | |
1737 | ||
1738 | /* We must generate a R_68K_COPY reloc to tell the dynamic linker to | |
1739 | copy the initial value out of the dynamic object and into the | |
1740 | runtime process image. We need to remember the offset into the | |
1741 | .rela.bss section we are going to use. */ | |
1742 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1743 | { | |
1744 | asection *srel; | |
1745 | ||
1746 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1747 | BFD_ASSERT (srel != NULL); | |
1748 | srel->size += sizeof (Elf32_External_Rela); | |
1749 | h->needs_copy = 1; | |
1750 | } | |
1751 | ||
1752 | /* We need to figure out the alignment required for this symbol. I | |
1753 | have no idea how ELF linkers handle this. */ | |
1754 | power_of_two = bfd_log2 (h->size); | |
1755 | if (power_of_two > 3) | |
1756 | power_of_two = 3; | |
1757 | ||
1758 | /* Apply the required alignment. */ | |
1759 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); | |
1760 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1761 | { | |
1762 | if (!bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1763 | return FALSE; | |
1764 | } | |
1765 | ||
1766 | /* Define the symbol as being at this point in the section. */ | |
1767 | h->root.u.def.section = s; | |
1768 | h->root.u.def.value = s->size; | |
1769 | ||
1770 | /* Increment the section size to make room for the symbol. */ | |
1771 | s->size += h->size; | |
1772 | ||
1773 | return TRUE; | |
1774 | } | |
1775 | ||
1776 | /* The bfin linker needs to keep track of the number of relocs that it | |
1777 | decides to copy in check_relocs for each symbol. This is so that it | |
1778 | can discard PC relative relocs if it doesn't need them when linking | |
1779 | with -Bsymbolic. We store the information in a field extending the | |
1780 | regular ELF linker hash table. */ | |
1781 | ||
1782 | /* This structure keeps track of the number of PC relative relocs we have | |
1783 | copied for a given symbol. */ | |
1784 | ||
1785 | struct bfin_pcrel_relocs_copied | |
1786 | { | |
1787 | /* Next section. */ | |
1788 | struct bfin_pcrel_relocs_copied *next; | |
1789 | /* A section in dynobj. */ | |
1790 | asection *section; | |
1791 | /* Number of relocs copied in this section. */ | |
1792 | bfd_size_type count; | |
1793 | }; | |
1794 | ||
1795 | /* This function is called via elf_link_hash_traverse if we are | |
1796 | creating a shared object. In the -Bsymbolic case it discards the | |
1797 | space allocated to copy PC relative relocs against symbols which | |
1798 | are defined in regular objects. For the normal shared case, it | |
1799 | discards space for pc-relative relocs that have become local due to | |
1800 | symbol visibility changes. We allocated space for them in the | |
1801 | check_relocs routine, but we won't fill them in in the | |
1802 | relocate_section routine. | |
1803 | ||
1804 | We also check whether any of the remaining relocations apply | |
1805 | against a readonly section, and set the DF_TEXTREL flag in this | |
1806 | case. */ | |
1807 | ||
1808 | static bfd_boolean | |
1809 | bfin_discard_copies (struct elf_link_hash_entry *h, PTR inf) | |
1810 | { | |
1811 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1812 | struct bfin_pcrel_relocs_copied *s; | |
1813 | ||
1814 | if (h->root.type == bfd_link_hash_warning) | |
1815 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1816 | ||
1817 | if (!h->def_regular || (!info->symbolic && !h->forced_local)) | |
1818 | { | |
1819 | if ((info->flags & DF_TEXTREL) == 0) | |
1820 | { | |
1821 | /* Look for relocations against read-only sections. */ | |
1822 | for (s = bfin_hash_entry (h)->pcrel_relocs_copied; | |
1823 | s != NULL; s = s->next) | |
1824 | if ((s->section->flags & SEC_READONLY) != 0) | |
1825 | { | |
1826 | info->flags |= DF_TEXTREL; | |
1827 | break; | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | return TRUE; | |
1832 | } | |
1833 | ||
1834 | for (s = bfin_hash_entry (h)->pcrel_relocs_copied; | |
1835 | s != NULL; s = s->next) | |
1836 | s->section->size -= s->count * sizeof (Elf32_External_Rela); | |
1837 | ||
1838 | return TRUE; | |
1839 | } | |
1840 | ||
1841 | /* Set the sizes of the dynamic sections. */ | |
1842 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
1843 | ||
1844 | static bfd_boolean | |
1845 | bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, | |
1846 | struct bfd_link_info *info) | |
1847 | { | |
1848 | bfd *dynobj; | |
1849 | asection *s; | |
1850 | bfd_boolean relocs; | |
1851 | ||
1852 | dynobj = elf_hash_table (info)->dynobj; | |
1853 | BFD_ASSERT (dynobj != NULL); | |
1854 | ||
1855 | if (elf_hash_table (info)->dynamic_sections_created) | |
1856 | { | |
1857 | /* Set the contents of the .interp section to the interpreter. */ | |
1858 | if (info->executable) | |
1859 | { | |
1860 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1861 | BFD_ASSERT (s != NULL); | |
1862 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1863 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
1864 | } | |
1865 | } | |
1866 | else | |
1867 | { | |
1868 | /* We may have created entries in the .rela.got section. | |
1869 | However, if we are not creating the dynamic sections, we will | |
1870 | not actually use these entries. Reset the size of .rela.got, | |
1871 | which will cause it to get stripped from the output file | |
1872 | below. */ | |
1873 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1874 | if (s != NULL) | |
1875 | s->size = 0; | |
1876 | } | |
1877 | ||
1878 | /* If this is a -Bsymbolic shared link, then we need to discard all | |
1879 | PC relative relocs against symbols defined in a regular object. | |
1880 | For the normal shared case we discard the PC relative relocs | |
1881 | against symbols that have become local due to visibility changes. | |
1882 | We allocated space for them in the check_relocs routine, but we | |
1883 | will not fill them in in the relocate_section routine. */ | |
1884 | if (info->shared) | |
1885 | elf_link_hash_traverse (elf_hash_table (info), | |
1886 | bfin_discard_copies, (PTR) info); | |
1887 | ||
1888 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1889 | determined the sizes of the various dynamic sections. Allocate | |
1890 | memory for them. */ | |
1891 | relocs = FALSE; | |
1892 | for (s = dynobj->sections; s != NULL; s = s->next) | |
1893 | { | |
1894 | const char *name; | |
1895 | bfd_boolean strip; | |
1896 | ||
1897 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1898 | continue; | |
1899 | ||
1900 | /* It's OK to base decisions on the section name, because none | |
1901 | of the dynobj section names depend upon the input files. */ | |
1902 | name = bfd_get_section_name (dynobj, s); | |
1903 | ||
1904 | strip = FALSE; | |
1905 | ||
1906 | if (strncmp (name, ".rela", 5) == 0) | |
1907 | { | |
1908 | if (s->size == 0) | |
1909 | { | |
1910 | /* If we don't need this section, strip it from the | |
1911 | output file. This is mostly to handle .rela.bss and | |
1912 | .rela.plt. We must create both sections in | |
1913 | create_dynamic_sections, because they must be created | |
1914 | before the linker maps input sections to output | |
1915 | sections. The linker does that before | |
1916 | adjust_dynamic_symbol is called, and it is that | |
1917 | function which decides whether anything needs to go | |
1918 | into these sections. */ | |
1919 | strip = TRUE; | |
1920 | } | |
1921 | else | |
1922 | { | |
1923 | relocs = TRUE; | |
1924 | ||
1925 | /* We use the reloc_count field as a counter if we need | |
1926 | to copy relocs into the output file. */ | |
1927 | s->reloc_count = 0; | |
1928 | } | |
1929 | } | |
1930 | else if (strncmp (name, ".got", 4) != 0) | |
1931 | { | |
1932 | /* It's not one of our sections, so don't allocate space. */ | |
1933 | continue; | |
1934 | } | |
1935 | ||
1936 | if (strip) | |
1937 | { | |
1938 | s->flags |= SEC_EXCLUDE; | |
1939 | continue; | |
1940 | } | |
1941 | ||
1942 | /* Allocate memory for the section contents. */ | |
1943 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. | |
1944 | Unused entries should be reclaimed before the section's contents | |
1945 | are written out, but at the moment this does not happen. Thus in | |
1946 | order to prevent writing out garbage, we initialise the section's | |
1947 | contents to zero. */ | |
1948 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
1949 | if (s->contents == NULL && s->size != 0) | |
1950 | return FALSE; | |
1951 | } | |
1952 | ||
1953 | if (elf_hash_table (info)->dynamic_sections_created) | |
1954 | { | |
1955 | /* Add some entries to the .dynamic section. We fill in the | |
1956 | values later, in bfin_finish_dynamic_sections, but we | |
1957 | must add the entries now so that we get the correct size for | |
1958 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1959 | dynamic linker and used by the debugger. */ | |
1960 | #define add_dynamic_entry(TAG, VAL) \ | |
1961 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
1962 | ||
1963 | if (!info->shared) | |
1964 | { | |
1965 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
1966 | return FALSE; | |
1967 | } | |
1968 | ||
1969 | ||
1970 | if (relocs) | |
1971 | { | |
1972 | if (!add_dynamic_entry (DT_RELA, 0) | |
1973 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1974 | || !add_dynamic_entry (DT_RELAENT, | |
1975 | sizeof (Elf32_External_Rela))) | |
1976 | return FALSE; | |
1977 | } | |
1978 | ||
1979 | if ((info->flags & DF_TEXTREL) != 0) | |
1980 | { | |
1981 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
1982 | return FALSE; | |
1983 | } | |
1984 | } | |
1985 | #undef add_dynamic_entry | |
1986 | ||
1987 | return TRUE; | |
1988 | } | |
1989 | ||
1990 | /* Given a .data section and a .emreloc in-memory section, store | |
1991 | relocation information into the .emreloc section which can be | |
1992 | used at runtime to relocate the section. This is called by the | |
1993 | linker when the --embedded-relocs switch is used. This is called | |
1994 | after the add_symbols entry point has been called for all the | |
1995 | objects, and before the final_link entry point is called. */ | |
1996 | ||
3b55e94a BS |
1997 | bfd_boolean bfd_bfin_elf32_create_embedded_relocs |
1998 | PARAMS ((bfd *, struct bfd_link_info *, asection *, asection *, char **)); | |
1999 | ||
0f64bb02 CM |
2000 | bfd_boolean |
2001 | bfd_bfin_elf32_create_embedded_relocs ( | |
2002 | bfd *abfd, | |
2003 | struct bfd_link_info *info, | |
2004 | asection *datasec, | |
2005 | asection *relsec, | |
2006 | char **errmsg) | |
2007 | { | |
2008 | Elf_Internal_Shdr *symtab_hdr; | |
2009 | Elf_Internal_Sym *isymbuf = NULL; | |
2010 | Elf_Internal_Rela *internal_relocs = NULL; | |
2011 | Elf_Internal_Rela *irel, *irelend; | |
2012 | bfd_byte *p; | |
2013 | bfd_size_type amt; | |
2014 | ||
2015 | BFD_ASSERT (! info->relocatable); | |
2016 | ||
2017 | *errmsg = NULL; | |
2018 | ||
2019 | if (datasec->reloc_count == 0) | |
2020 | return TRUE; | |
2021 | ||
2022 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2023 | ||
2024 | /* Get a copy of the native relocations. */ | |
2025 | internal_relocs = (_bfd_elf_link_read_relocs | |
2026 | (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL, | |
2027 | info->keep_memory)); | |
2028 | if (internal_relocs == NULL) | |
2029 | goto error_return; | |
2030 | ||
2031 | amt = (bfd_size_type) datasec->reloc_count * 12; | |
2032 | relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt); | |
2033 | if (relsec->contents == NULL) | |
2034 | goto error_return; | |
2035 | ||
2036 | p = relsec->contents; | |
2037 | ||
2038 | irelend = internal_relocs + datasec->reloc_count; | |
2039 | for (irel = internal_relocs; irel < irelend; irel++, p += 12) | |
2040 | { | |
2041 | asection *targetsec; | |
2042 | ||
2043 | /* We are going to write a four byte longword into the runtime | |
2044 | reloc section. The longword will be the address in the data | |
2045 | section which must be relocated. It is followed by the name | |
2046 | of the target section NUL-padded or truncated to 8 | |
2047 | characters. */ | |
2048 | ||
2049 | /* We can only relocate absolute longword relocs at run time. */ | |
2050 | if (ELF32_R_TYPE (irel->r_info) != (int) R_byte4_data) | |
2051 | { | |
2052 | *errmsg = _("unsupported reloc type"); | |
2053 | bfd_set_error (bfd_error_bad_value); | |
2054 | goto error_return; | |
2055 | } | |
2056 | ||
2057 | /* Get the target section referred to by the reloc. */ | |
2058 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
2059 | { | |
2060 | /* A local symbol. */ | |
2061 | Elf_Internal_Sym *isym; | |
2062 | ||
2063 | /* Read this BFD's local symbols if we haven't done so already. */ | |
2064 | if (isymbuf == NULL) | |
2065 | { | |
2066 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
2067 | if (isymbuf == NULL) | |
2068 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2069 | symtab_hdr->sh_info, 0, | |
2070 | NULL, NULL, NULL); | |
2071 | if (isymbuf == NULL) | |
2072 | goto error_return; | |
2073 | } | |
2074 | ||
2075 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
2076 | targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2077 | } | |
2078 | else | |
2079 | { | |
2080 | unsigned long indx; | |
2081 | struct elf_link_hash_entry *h; | |
2082 | ||
2083 | /* An external symbol. */ | |
2084 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2085 | h = elf_sym_hashes (abfd)[indx]; | |
2086 | BFD_ASSERT (h != NULL); | |
2087 | if (h->root.type == bfd_link_hash_defined | |
2088 | || h->root.type == bfd_link_hash_defweak) | |
2089 | targetsec = h->root.u.def.section; | |
2090 | else | |
2091 | targetsec = NULL; | |
2092 | } | |
2093 | ||
2094 | bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p); | |
2095 | memset (p + 4, 0, 8); | |
2096 | if (targetsec != NULL) | |
9ba4c445 | 2097 | strncpy ((char *) p + 4, targetsec->output_section->name, 8); |
0f64bb02 CM |
2098 | } |
2099 | ||
2100 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) | |
2101 | free (isymbuf); | |
2102 | if (internal_relocs != NULL | |
2103 | && elf_section_data (datasec)->relocs != internal_relocs) | |
2104 | free (internal_relocs); | |
2105 | return TRUE; | |
2106 | ||
2107 | error_return: | |
2108 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) | |
2109 | free (isymbuf); | |
2110 | if (internal_relocs != NULL | |
2111 | && elf_section_data (datasec)->relocs != internal_relocs) | |
2112 | free (internal_relocs); | |
2113 | return FALSE; | |
2114 | } | |
2115 | ||
2116 | #define TARGET_LITTLE_SYM bfd_elf32_bfin_vec | |
2117 | #define TARGET_LITTLE_NAME "elf32-bfin" | |
2118 | #define ELF_ARCH bfd_arch_bfin | |
3b55e94a | 2119 | #define ELF_MACHINE_CODE EM_BLACKFIN |
0f64bb02 CM |
2120 | #define ELF_MAXPAGESIZE 0x1000 |
2121 | #define elf_symbol_leading_char '_' | |
2122 | ||
2123 | #define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup | |
2124 | #define elf_info_to_howto bfin_info_to_howto | |
2125 | #define elf_info_to_howto_rel 0 | |
2126 | ||
2127 | #define bfd_elf32_bfd_is_local_label_name \ | |
2128 | bfin_is_local_label_name | |
2129 | #define bfin_hash_table(p) \ | |
2130 | ((struct bfin_link_hash_table *) (p)->hash) | |
2131 | ||
2132 | ||
2133 | ||
2134 | #define elf_backend_create_dynamic_sections \ | |
2135 | _bfd_elf_create_dynamic_sections | |
2136 | #define bfd_elf32_bfd_link_hash_table_create \ | |
2137 | bfin_link_hash_table_create | |
2138 | #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link | |
2139 | ||
2140 | #define elf_backend_check_relocs bfin_check_relocs | |
2141 | #define elf_backend_adjust_dynamic_symbol \ | |
2142 | bfin_adjust_dynamic_symbol | |
2143 | #define elf_backend_size_dynamic_sections \ | |
2144 | bfin_size_dynamic_sections | |
2145 | #define elf_backend_relocate_section bfin_relocate_section | |
2146 | #define elf_backend_finish_dynamic_symbol \ | |
2147 | bfin_finish_dynamic_symbol | |
2148 | #define elf_backend_finish_dynamic_sections \ | |
2149 | bfin_finish_dynamic_sections | |
2150 | #define elf_backend_gc_mark_hook bfin_gc_mark_hook | |
2151 | #define elf_backend_gc_sweep_hook bfin_gc_sweep_hook | |
2152 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
2153 | elf32_bfin_merge_private_bfd_data | |
2154 | #define bfd_elf32_bfd_set_private_flags \ | |
2155 | elf32_bfin_set_private_flags | |
2156 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
2157 | elf32_bfin_print_private_bfd_data | |
2158 | #define elf_backend_reloc_type_class elf32_bfin_reloc_type_class | |
2159 | #define elf_backend_can_gc_sections 1 | |
2160 | #define elf_backend_can_refcount 1 | |
2161 | #define elf_backend_want_got_plt 0 | |
2162 | #define elf_backend_plt_readonly 1 | |
2163 | #define elf_backend_want_plt_sym 0 | |
2164 | #define elf_backend_got_header_size 12 | |
2165 | #define elf_backend_rela_normal 1 | |
2166 | ||
2167 | ||
2168 | #include "elf32-target.h" |