Commit | Line | Data |
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252b5132 | 1 | /* M32R-specific support for 32-bit ELF. |
b90efa5b | 2 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
252b5132 | 3 | |
88845958 | 4 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 5 | |
88845958 NC |
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 | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
88845958 | 9 | (at your option) any later version. |
252b5132 | 10 | |
88845958 NC |
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. | |
252b5132 | 15 | |
88845958 NC |
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 | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
252b5132 | 20 | |
252b5132 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
252b5132 RH |
23 | #include "libbfd.h" |
24 | #include "elf-bfd.h" | |
25 | #include "elf/m32r.h" | |
26 | ||
252b5132 RH |
27 | #define NOP_INSN 0x7000 |
28 | #define MAKE_PARALLEL(insn) ((insn) | 0x8000) | |
29 | ||
30 | /* Use REL instead of RELA to save space. | |
31 | This only saves space in libraries and object files, but perhaps | |
32 | relocs will be put in ROM? All in all though, REL relocs are a pain | |
33 | to work with. */ | |
6edf0760 | 34 | /* #define USE_REL 1 |
acf8aed4 AM |
35 | |
36 | #ifndef USE_REL | |
37 | #define USE_REL 0 | |
6edf0760 | 38 | #endif */ |
47b0e7ad | 39 | /* Use RELA. But use REL to link old objects for backwords compatibility. */ |
6edf0760 NC |
40 | |
41 | /* Functions for the M32R ELF linker. */ | |
41978308 | 42 | |
6edf0760 NC |
43 | /* The name of the dynamic interpreter. This is put in the .interp |
44 | section. */ | |
41978308 | 45 | |
6edf0760 | 46 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" |
41978308 | 47 | |
6edf0760 | 48 | /* The nop opcode we use. */ |
41978308 | 49 | |
6edf0760 | 50 | #define M32R_NOP 0x7000f000 |
41978308 | 51 | |
6edf0760 | 52 | #define PLT_EMPTY 0x10101010 /* RIE -> RIE */ |
41978308 | 53 | |
6edf0760 NC |
54 | /* The size in bytes of an entry in the procedure linkage table. */ |
55 | ||
56 | #define PLT_ENTRY_SIZE 20 | |
57 | #define PLT_HEADER_SIZE 20 | |
41978308 | 58 | |
6edf0760 NC |
59 | /* The first one entries in a procedure linkage table are reserved, |
60 | and the initial contents are unimportant (we zero them out). | |
61 | Subsequent entries look like this. */ | |
41978308 | 62 | |
6edf0760 NC |
63 | #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */ |
64 | #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */ | |
65 | #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */ | |
66 | #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */ | |
67 | #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ | |
41978308 | 68 | |
6edf0760 NC |
69 | #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */ |
70 | #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */ | |
71 | #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */ | |
72 | #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */ | |
73 | #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ | |
41978308 | 74 | |
6edf0760 NC |
75 | #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */ |
76 | #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */ | |
77 | #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */ | |
78 | #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */ | |
79 | #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */ | |
80 | #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */ | |
81 | #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */ | |
82 | ||
252b5132 | 83 | |
47b0e7ad | 84 | /* Utility to actually perform an R_M32R_10_PCREL reloc. */ |
252b5132 | 85 | |
47b0e7ad NC |
86 | static bfd_reloc_status_type |
87 | m32r_elf_do_10_pcrel_reloc (bfd *abfd, | |
88 | reloc_howto_type *howto, | |
89 | asection *input_section, | |
90 | bfd_byte *data, | |
91 | bfd_vma offset, | |
92 | asection *symbol_section ATTRIBUTE_UNUSED, | |
93 | bfd_vma symbol_value, | |
94 | bfd_vma addend) | |
95 | { | |
96 | bfd_signed_vma relocation; | |
97 | unsigned long x; | |
98 | bfd_reloc_status_type status; | |
252b5132 | 99 | |
47b0e7ad NC |
100 | /* Sanity check the address (offset in section). */ |
101 | if (offset > bfd_get_section_limit (abfd, input_section)) | |
102 | return bfd_reloc_outofrange; | |
252b5132 | 103 | |
47b0e7ad NC |
104 | relocation = symbol_value + addend; |
105 | /* Make it pc relative. */ | |
106 | relocation -= (input_section->output_section->vma | |
107 | + input_section->output_offset); | |
108 | /* These jumps mask off the lower two bits of the current address | |
109 | before doing pcrel calculations. */ | |
110 | relocation -= (offset & -(bfd_vma) 4); | |
252b5132 | 111 | |
47b0e7ad NC |
112 | if (relocation < -0x200 || relocation > 0x1ff) |
113 | status = bfd_reloc_overflow; | |
114 | else | |
115 | status = bfd_reloc_ok; | |
252b5132 | 116 | |
47b0e7ad NC |
117 | x = bfd_get_16 (abfd, data + offset); |
118 | relocation >>= howto->rightshift; | |
119 | relocation <<= howto->bitpos; | |
120 | x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask); | |
121 | bfd_put_16 (abfd, (bfd_vma) x, data + offset); | |
252b5132 | 122 | |
47b0e7ad NC |
123 | return status; |
124 | } | |
252b5132 | 125 | |
47b0e7ad | 126 | /* Handle the R_M32R_10_PCREL reloc. */ |
252b5132 | 127 | |
47b0e7ad NC |
128 | static bfd_reloc_status_type |
129 | m32r_elf_10_pcrel_reloc (bfd * abfd, | |
130 | arelent * reloc_entry, | |
131 | asymbol * symbol, | |
132 | void * data, | |
133 | asection * input_section, | |
134 | bfd * output_bfd, | |
135 | char ** error_message ATTRIBUTE_UNUSED) | |
136 | { | |
137 | /* This part is from bfd_elf_generic_reloc. */ | |
138 | if (output_bfd != NULL | |
139 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
140 | && (! reloc_entry->howto->partial_inplace | |
141 | || reloc_entry->addend == 0)) | |
142 | { | |
143 | reloc_entry->address += input_section->output_offset; | |
144 | return bfd_reloc_ok; | |
145 | } | |
252b5132 | 146 | |
47b0e7ad NC |
147 | if (output_bfd != NULL) |
148 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
149 | return bfd_reloc_continue; | |
252b5132 | 150 | |
47b0e7ad NC |
151 | return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto, |
152 | input_section, | |
153 | data, reloc_entry->address, | |
154 | symbol->section, | |
155 | (symbol->value | |
156 | + symbol->section->output_section->vma | |
157 | + symbol->section->output_offset), | |
158 | reloc_entry->addend); | |
159 | } | |
252b5132 | 160 | |
47b0e7ad NC |
161 | /* Do generic partial_inplace relocation. |
162 | This is a local replacement for bfd_elf_generic_reloc. */ | |
252b5132 | 163 | |
47b0e7ad NC |
164 | static bfd_reloc_status_type |
165 | m32r_elf_generic_reloc (bfd *input_bfd, | |
166 | arelent *reloc_entry, | |
167 | asymbol *symbol, | |
168 | void * data, | |
169 | asection *input_section, | |
170 | bfd *output_bfd, | |
171 | char **error_message ATTRIBUTE_UNUSED) | |
172 | { | |
173 | bfd_reloc_status_type ret; | |
174 | bfd_vma relocation; | |
175 | bfd_byte *inplace_address; | |
252b5132 | 176 | |
47b0e7ad NC |
177 | /* This part is from bfd_elf_generic_reloc. |
178 | If we're relocating, and this an external symbol, we don't want | |
179 | to change anything. */ | |
180 | if (output_bfd != NULL | |
181 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
182 | && reloc_entry->addend == 0) | |
183 | { | |
184 | reloc_entry->address += input_section->output_offset; | |
185 | return bfd_reloc_ok; | |
186 | } | |
6edf0760 | 187 | |
47b0e7ad NC |
188 | /* Now do the reloc in the usual way. |
189 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
190 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
191 | pass the handling back to bfd_install_relocation which will install | |
192 | a section relative addend which is wrong. */ | |
6edf0760 | 193 | |
47b0e7ad NC |
194 | /* Sanity check the address (offset in section). */ |
195 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) | |
196 | return bfd_reloc_outofrange; | |
6edf0760 | 197 | |
47b0e7ad NC |
198 | ret = bfd_reloc_ok; |
199 | if (bfd_is_und_section (symbol->section) | |
200 | && output_bfd == NULL) | |
201 | ret = bfd_reloc_undefined; | |
6edf0760 | 202 | |
47b0e7ad NC |
203 | if (bfd_is_com_section (symbol->section) |
204 | || output_bfd != NULL) | |
205 | relocation = 0; | |
206 | else | |
207 | relocation = symbol->value; | |
6edf0760 | 208 | |
47b0e7ad NC |
209 | /* Only do this for a final link. */ |
210 | if (output_bfd == NULL) | |
211 | { | |
212 | relocation += symbol->section->output_section->vma; | |
213 | relocation += symbol->section->output_offset; | |
214 | } | |
6edf0760 | 215 | |
47b0e7ad NC |
216 | relocation += reloc_entry->addend; |
217 | inplace_address = (bfd_byte *) data + reloc_entry->address; | |
6edf0760 | 218 | |
47b0e7ad NC |
219 | #define DOIT(x) \ |
220 | x = ( (x & ~reloc_entry->howto->dst_mask) | \ | |
221 | (((x & reloc_entry->howto->src_mask) + relocation) & \ | |
222 | reloc_entry->howto->dst_mask)) | |
6edf0760 | 223 | |
47b0e7ad NC |
224 | switch (reloc_entry->howto->size) |
225 | { | |
226 | case 1: | |
227 | { | |
228 | short x = bfd_get_16 (input_bfd, inplace_address); | |
229 | DOIT (x); | |
230 | bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address); | |
231 | } | |
232 | break; | |
233 | case 2: | |
234 | { | |
235 | unsigned long x = bfd_get_32 (input_bfd, inplace_address); | |
236 | DOIT (x); | |
237 | bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address); | |
238 | } | |
239 | break; | |
240 | default: | |
241 | BFD_ASSERT (0); | |
242 | } | |
6edf0760 | 243 | |
47b0e7ad NC |
244 | if (output_bfd != NULL) |
245 | reloc_entry->address += input_section->output_offset; | |
6edf0760 | 246 | |
47b0e7ad NC |
247 | return ret; |
248 | } | |
6edf0760 | 249 | |
47b0e7ad NC |
250 | /* Handle the R_M32R_SDA16 reloc. |
251 | This reloc is used to compute the address of objects in the small data area | |
252 | and to perform loads and stores from that area. | |
253 | The lower 16 bits are sign extended and added to the register specified | |
254 | in the instruction, which is assumed to point to _SDA_BASE_. */ | |
6edf0760 | 255 | |
47b0e7ad NC |
256 | static bfd_reloc_status_type |
257 | m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
258 | arelent *reloc_entry, | |
259 | asymbol *symbol, | |
260 | void * data ATTRIBUTE_UNUSED, | |
261 | asection *input_section, | |
262 | bfd *output_bfd, | |
263 | char **error_message ATTRIBUTE_UNUSED) | |
264 | { | |
265 | /* This part is from bfd_elf_generic_reloc. */ | |
266 | if (output_bfd != NULL | |
267 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
268 | && (! reloc_entry->howto->partial_inplace | |
269 | || reloc_entry->addend == 0)) | |
270 | { | |
271 | reloc_entry->address += input_section->output_offset; | |
272 | return bfd_reloc_ok; | |
273 | } | |
6edf0760 | 274 | |
47b0e7ad NC |
275 | if (output_bfd != NULL) |
276 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
277 | return bfd_reloc_continue; | |
6edf0760 | 278 | |
47b0e7ad NC |
279 | /* FIXME: not sure what to do here yet. But then again, the linker |
280 | may never call us. */ | |
281 | abort (); | |
282 | } | |
6edf0760 | 283 | |
47b0e7ad NC |
284 | \f |
285 | /* Handle the R_M32R_HI16_[SU]LO relocs. | |
286 | HI16_SLO is for the add3 and load/store with displacement instructions. | |
287 | HI16_ULO is for the or3 instruction. | |
288 | For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to | |
289 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then | |
290 | we must add one to the high 16 bytes (which will get subtracted off when | |
291 | the low 16 bits are added). | |
292 | These relocs have to be done in combination with an R_M32R_LO16 reloc | |
293 | because there is a carry from the LO16 to the HI16. Here we just save | |
294 | the information we need; we do the actual relocation when we see the LO16. | |
295 | This code is copied from the elf32-mips.c. We also support an arbitrary | |
296 | number of HI16 relocs to be associated with a single LO16 reloc. The | |
297 | assembler sorts the relocs to ensure each HI16 immediately precedes its | |
298 | LO16. However if there are multiple copies, the assembler may not find | |
299 | the real LO16 so it picks the first one it finds. */ | |
6edf0760 | 300 | |
47b0e7ad NC |
301 | struct m32r_hi16 |
302 | { | |
303 | struct m32r_hi16 *next; | |
304 | bfd_byte *addr; | |
305 | bfd_vma addend; | |
306 | }; | |
307 | ||
308 | /* FIXME: This should not be a static variable. */ | |
309 | ||
310 | static struct m32r_hi16 *m32r_hi16_list; | |
311 | ||
312 | static bfd_reloc_status_type | |
313 | m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
314 | arelent *reloc_entry, | |
315 | asymbol *symbol, | |
316 | void * data, | |
317 | asection *input_section, | |
318 | bfd *output_bfd, | |
319 | char **error_message ATTRIBUTE_UNUSED) | |
320 | { | |
321 | bfd_reloc_status_type ret; | |
322 | bfd_vma relocation; | |
323 | struct m32r_hi16 *n; | |
324 | ||
325 | /* This part is from bfd_elf_generic_reloc. | |
326 | If we're relocating, and this an external symbol, we don't want | |
327 | to change anything. */ | |
328 | if (output_bfd != NULL | |
329 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
330 | && reloc_entry->addend == 0) | |
331 | { | |
332 | reloc_entry->address += input_section->output_offset; | |
333 | return bfd_reloc_ok; | |
334 | } | |
335 | ||
336 | /* Sanity check the address (offset in section). */ | |
337 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
338 | return bfd_reloc_outofrange; | |
339 | ||
340 | ret = bfd_reloc_ok; | |
341 | if (bfd_is_und_section (symbol->section) | |
342 | && output_bfd == NULL) | |
343 | ret = bfd_reloc_undefined; | |
344 | ||
345 | if (bfd_is_com_section (symbol->section)) | |
346 | relocation = 0; | |
347 | else | |
348 | relocation = symbol->value; | |
349 | ||
350 | relocation += symbol->section->output_section->vma; | |
351 | relocation += symbol->section->output_offset; | |
352 | relocation += reloc_entry->addend; | |
353 | ||
354 | /* Save the information, and let LO16 do the actual relocation. */ | |
355 | n = bfd_malloc ((bfd_size_type) sizeof *n); | |
356 | if (n == NULL) | |
357 | return bfd_reloc_outofrange; | |
358 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
359 | n->addend = relocation; | |
360 | n->next = m32r_hi16_list; | |
361 | m32r_hi16_list = n; | |
362 | ||
363 | if (output_bfd != NULL) | |
364 | reloc_entry->address += input_section->output_offset; | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | /* Handle an M32R ELF HI16 reloc. */ | |
370 | ||
371 | static void | |
372 | m32r_elf_relocate_hi16 (bfd *input_bfd, | |
373 | int type, | |
374 | Elf_Internal_Rela *relhi, | |
375 | Elf_Internal_Rela *rello, | |
376 | bfd_byte *contents, | |
377 | bfd_vma addend) | |
378 | { | |
379 | unsigned long insn; | |
380 | bfd_vma addlo; | |
381 | ||
382 | insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); | |
383 | ||
384 | addlo = bfd_get_32 (input_bfd, contents + rello->r_offset); | |
385 | if (type == R_M32R_HI16_SLO) | |
386 | addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000; | |
387 | else | |
388 | addlo &= 0xffff; | |
389 | ||
390 | addend += ((insn & 0xffff) << 16) + addlo; | |
391 | ||
392 | /* Reaccount for sign extension of low part. */ | |
393 | if (type == R_M32R_HI16_SLO | |
394 | && (addend & 0x8000) != 0) | |
395 | addend += 0x10000; | |
396 | ||
397 | bfd_put_32 (input_bfd, | |
398 | (insn & 0xffff0000) | ((addend >> 16) & 0xffff), | |
399 | contents + relhi->r_offset); | |
400 | } | |
401 | ||
402 | /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit | |
403 | inplace relocation; this function exists in order to do the | |
404 | R_M32R_HI16_[SU]LO relocation described above. */ | |
405 | ||
406 | static bfd_reloc_status_type | |
407 | m32r_elf_lo16_reloc (bfd *input_bfd, | |
408 | arelent *reloc_entry, | |
409 | asymbol *symbol, | |
410 | void * data, | |
411 | asection *input_section, | |
412 | bfd *output_bfd, | |
413 | char **error_message) | |
414 | { | |
415 | /* This part is from bfd_elf_generic_reloc. | |
416 | If we're relocating, and this an external symbol, we don't want | |
417 | to change anything. */ | |
418 | if (output_bfd != NULL | |
419 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
420 | && reloc_entry->addend == 0) | |
421 | { | |
422 | reloc_entry->address += input_section->output_offset; | |
423 | return bfd_reloc_ok; | |
424 | } | |
425 | ||
426 | if (m32r_hi16_list != NULL) | |
427 | { | |
428 | struct m32r_hi16 *l; | |
429 | ||
430 | l = m32r_hi16_list; | |
431 | while (l != NULL) | |
432 | { | |
433 | unsigned long insn; | |
434 | unsigned long val; | |
435 | unsigned long vallo; | |
436 | struct m32r_hi16 *next; | |
437 | ||
438 | /* Do the HI16 relocation. Note that we actually don't need | |
439 | to know anything about the LO16 itself, except where to | |
440 | find the low 16 bits of the addend needed by the LO16. */ | |
441 | insn = bfd_get_32 (input_bfd, l->addr); | |
442 | vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address) | |
443 | & 0xffff) ^ 0x8000) - 0x8000; | |
444 | val = ((insn & 0xffff) << 16) + vallo; | |
445 | val += l->addend; | |
446 | ||
447 | /* Reaccount for sign extension of low part. */ | |
448 | if ((val & 0x8000) != 0) | |
449 | val += 0x10000; | |
450 | ||
451 | insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff); | |
452 | bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr); | |
453 | ||
454 | next = l->next; | |
455 | free (l); | |
456 | l = next; | |
457 | } | |
6edf0760 | 458 | |
47b0e7ad NC |
459 | m32r_hi16_list = NULL; |
460 | } | |
461 | ||
462 | /* Now do the LO16 reloc in the usual way. | |
463 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
464 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
465 | pass the handling back to bfd_install_relocation which will install | |
466 | a section relative addend which is wrong. */ | |
467 | return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, | |
468 | input_section, output_bfd, error_message); | |
469 | } | |
470 | ||
471 | \f | |
472 | static reloc_howto_type m32r_elf_howto_table[] = | |
473 | { | |
474 | /* This reloc does nothing. */ | |
475 | HOWTO (R_M32R_NONE, /* type */ | |
6edf0760 | 476 | 0, /* rightshift */ |
6346d5ca AM |
477 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
478 | 0, /* bitsize */ | |
6edf0760 NC |
479 | FALSE, /* pc_relative */ |
480 | 0, /* bitpos */ | |
6346d5ca | 481 | complain_overflow_dont, /* complain_on_overflow */ |
47b0e7ad NC |
482 | bfd_elf_generic_reloc, /* special_function */ |
483 | "R_M32R_NONE", /* name */ | |
6edf0760 | 484 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
485 | 0, /* src_mask */ |
486 | 0, /* dst_mask */ | |
6edf0760 NC |
487 | FALSE), /* pcrel_offset */ |
488 | ||
47b0e7ad NC |
489 | /* A 16 bit absolute relocation. */ |
490 | HOWTO (R_M32R_16, /* type */ | |
6edf0760 | 491 | 0, /* rightshift */ |
47b0e7ad NC |
492 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
493 | 16, /* bitsize */ | |
6edf0760 NC |
494 | FALSE, /* pc_relative */ |
495 | 0, /* bitpos */ | |
496 | complain_overflow_bitfield, /* complain_on_overflow */ | |
47b0e7ad NC |
497 | m32r_elf_generic_reloc,/* special_function */ |
498 | "R_M32R_16", /* name */ | |
499 | TRUE, /* partial_inplace */ | |
500 | 0xffff, /* src_mask */ | |
501 | 0xffff, /* dst_mask */ | |
6edf0760 NC |
502 | FALSE), /* pcrel_offset */ |
503 | ||
47b0e7ad NC |
504 | /* A 32 bit absolute relocation. */ |
505 | HOWTO (R_M32R_32, /* type */ | |
6edf0760 NC |
506 | 0, /* rightshift */ |
507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 32, /* bitsize */ | |
509 | FALSE, /* pc_relative */ | |
510 | 0, /* bitpos */ | |
511 | complain_overflow_bitfield, /* complain_on_overflow */ | |
47b0e7ad NC |
512 | m32r_elf_generic_reloc,/* special_function */ |
513 | "R_M32R_32", /* name */ | |
514 | TRUE, /* partial_inplace */ | |
6edf0760 NC |
515 | 0xffffffff, /* src_mask */ |
516 | 0xffffffff, /* dst_mask */ | |
517 | FALSE), /* pcrel_offset */ | |
518 | ||
47b0e7ad NC |
519 | /* A 24 bit address. */ |
520 | HOWTO (R_M32R_24, /* type */ | |
6edf0760 NC |
521 | 0, /* rightshift */ |
522 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
097f809a | 523 | 24, /* bitsize */ |
6edf0760 NC |
524 | FALSE, /* pc_relative */ |
525 | 0, /* bitpos */ | |
47b0e7ad NC |
526 | complain_overflow_unsigned, /* complain_on_overflow */ |
527 | m32r_elf_generic_reloc,/* special_function */ | |
528 | "R_M32R_24", /* name */ | |
529 | TRUE, /* partial_inplace */ | |
097f809a NC |
530 | 0xffffff, /* src_mask */ |
531 | 0xffffff, /* dst_mask */ | |
6edf0760 NC |
532 | FALSE), /* pcrel_offset */ |
533 | ||
47b0e7ad NC |
534 | /* An PC Relative 10-bit relocation, shifted by 2. |
535 | This reloc is complicated because relocations are relative to pc & -4. | |
536 | i.e. branches in the right insn slot use the address of the left insn | |
537 | slot for pc. */ | |
538 | /* ??? It's not clear whether this should have partial_inplace set or not. | |
539 | Branch relaxing in the assembler can store the addend in the insn, | |
540 | and if bfd_install_relocation gets called the addend may get added | |
541 | again. */ | |
542 | HOWTO (R_M32R_10_PCREL, /* type */ | |
543 | 2, /* rightshift */ | |
544 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
545 | 10, /* bitsize */ | |
546 | TRUE, /* pc_relative */ | |
547 | 0, /* bitpos */ | |
548 | complain_overflow_signed, /* complain_on_overflow */ | |
549 | m32r_elf_10_pcrel_reloc, /* special_function */ | |
550 | "R_M32R_10_PCREL", /* name */ | |
551 | FALSE, /* partial_inplace */ | |
552 | 0xff, /* src_mask */ | |
553 | 0xff, /* dst_mask */ | |
6edf0760 NC |
554 | TRUE), /* pcrel_offset */ |
555 | ||
47b0e7ad NC |
556 | /* A relative 18 bit relocation, right shifted by 2. */ |
557 | HOWTO (R_M32R_18_PCREL, /* type */ | |
558 | 2, /* rightshift */ | |
6edf0760 NC |
559 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
560 | 16, /* bitsize */ | |
47b0e7ad | 561 | TRUE, /* pc_relative */ |
6edf0760 | 562 | 0, /* bitpos */ |
47b0e7ad | 563 | complain_overflow_signed, /* complain_on_overflow */ |
6edf0760 | 564 | bfd_elf_generic_reloc, /* special_function */ |
47b0e7ad | 565 | "R_M32R_18_PCREL", /* name */ |
6edf0760 | 566 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
567 | 0xffff, /* src_mask */ |
568 | 0xffff, /* dst_mask */ | |
569 | TRUE), /* pcrel_offset */ | |
6edf0760 | 570 | |
47b0e7ad NC |
571 | /* A relative 26 bit relocation, right shifted by 2. */ |
572 | /* ??? It's not clear whether this should have partial_inplace set or not. | |
573 | Branch relaxing in the assembler can store the addend in the insn, | |
574 | and if bfd_install_relocation gets called the addend may get added | |
575 | again. */ | |
576 | HOWTO (R_M32R_26_PCREL, /* type */ | |
577 | 2, /* rightshift */ | |
6edf0760 | 578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
47b0e7ad NC |
579 | 26, /* bitsize */ |
580 | TRUE, /* pc_relative */ | |
6edf0760 | 581 | 0, /* bitpos */ |
47b0e7ad | 582 | complain_overflow_signed, /* complain_on_overflow */ |
6edf0760 | 583 | bfd_elf_generic_reloc, /* special_function */ |
47b0e7ad | 584 | "R_M32R_26_PCREL", /* name */ |
6edf0760 | 585 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
586 | 0xffffff, /* src_mask */ |
587 | 0xffffff, /* dst_mask */ | |
588 | TRUE), /* pcrel_offset */ | |
6edf0760 | 589 | |
47b0e7ad NC |
590 | /* High 16 bits of address when lower 16 is or'd in. */ |
591 | HOWTO (R_M32R_HI16_ULO, /* type */ | |
592 | 16, /* rightshift */ | |
6edf0760 NC |
593 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
594 | 16, /* bitsize */ | |
595 | FALSE, /* pc_relative */ | |
596 | 0, /* bitpos */ | |
597 | complain_overflow_dont, /* complain_on_overflow */ | |
47b0e7ad NC |
598 | m32r_elf_hi16_reloc, /* special_function */ |
599 | "R_M32R_HI16_ULO", /* name */ | |
600 | TRUE, /* partial_inplace */ | |
6edf0760 NC |
601 | 0x0000ffff, /* src_mask */ |
602 | 0x0000ffff, /* dst_mask */ | |
603 | FALSE), /* pcrel_offset */ | |
604 | ||
47b0e7ad NC |
605 | /* High 16 bits of address when lower 16 is added in. */ |
606 | HOWTO (R_M32R_HI16_SLO, /* type */ | |
6edf0760 NC |
607 | 16, /* rightshift */ |
608 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
609 | 16, /* bitsize */ | |
610 | FALSE, /* pc_relative */ | |
611 | 0, /* bitpos */ | |
612 | complain_overflow_dont, /* complain_on_overflow */ | |
47b0e7ad NC |
613 | m32r_elf_hi16_reloc, /* special_function */ |
614 | "R_M32R_HI16_SLO", /* name */ | |
615 | TRUE, /* partial_inplace */ | |
6edf0760 NC |
616 | 0x0000ffff, /* src_mask */ |
617 | 0x0000ffff, /* dst_mask */ | |
47b0e7ad | 618 | FALSE), /* pcrel_offset */ |
6edf0760 | 619 | |
47b0e7ad NC |
620 | /* Lower 16 bits of address. */ |
621 | HOWTO (R_M32R_LO16, /* type */ | |
622 | 0, /* rightshift */ | |
6edf0760 NC |
623 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
624 | 16, /* bitsize */ | |
625 | FALSE, /* pc_relative */ | |
626 | 0, /* bitpos */ | |
627 | complain_overflow_dont, /* complain_on_overflow */ | |
47b0e7ad NC |
628 | m32r_elf_lo16_reloc, /* special_function */ |
629 | "R_M32R_LO16", /* name */ | |
630 | TRUE, /* partial_inplace */ | |
6edf0760 NC |
631 | 0x0000ffff, /* src_mask */ |
632 | 0x0000ffff, /* dst_mask */ | |
47b0e7ad | 633 | FALSE), /* pcrel_offset */ |
6edf0760 | 634 | |
47b0e7ad NC |
635 | /* Small data area 16 bits offset. */ |
636 | HOWTO (R_M32R_SDA16, /* type */ | |
6edf0760 NC |
637 | 0, /* rightshift */ |
638 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
639 | 16, /* bitsize */ | |
640 | FALSE, /* pc_relative */ | |
641 | 0, /* bitpos */ | |
47b0e7ad NC |
642 | complain_overflow_signed, /* complain_on_overflow */ |
643 | m32r_elf_sda16_reloc, /* special_function */ | |
644 | "R_M32R_SDA16", /* name */ | |
645 | TRUE, /* partial_inplace */ /* FIXME: correct? */ | |
6edf0760 NC |
646 | 0x0000ffff, /* src_mask */ |
647 | 0x0000ffff, /* dst_mask */ | |
47b0e7ad | 648 | FALSE), /* pcrel_offset */ |
097f809a | 649 | |
47b0e7ad NC |
650 | /* GNU extension to record C++ vtable hierarchy. */ |
651 | HOWTO (R_M32R_GNU_VTINHERIT, /* type */ | |
652 | 0, /* rightshift */ | |
653 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
654 | 0, /* bitsize */ | |
655 | FALSE, /* pc_relative */ | |
656 | 0, /* bitpos */ | |
657 | complain_overflow_dont, /* complain_on_overflow */ | |
658 | NULL, /* special_function */ | |
659 | "R_M32R_GNU_VTINHERIT", /* name */ | |
660 | FALSE, /* partial_inplace */ | |
661 | 0, /* src_mask */ | |
662 | 0, /* dst_mask */ | |
663 | FALSE), /* pcrel_offset */ | |
664 | ||
665 | /* GNU extension to record C++ vtable member usage. */ | |
666 | HOWTO (R_M32R_GNU_VTENTRY, /* type */ | |
667 | 0, /* rightshift */ | |
668 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
669 | 0, /* bitsize */ | |
670 | FALSE, /* pc_relative */ | |
671 | 0, /* bitpos */ | |
672 | complain_overflow_dont, /* complain_on_overflow */ | |
673 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
674 | "R_M32R_GNU_VTENTRY", /* name */ | |
675 | FALSE, /* partial_inplace */ | |
676 | 0, /* src_mask */ | |
677 | 0, /* dst_mask */ | |
678 | FALSE), /* pcrel_offset */ | |
679 | ||
680 | EMPTY_HOWTO (13), | |
681 | EMPTY_HOWTO (14), | |
682 | EMPTY_HOWTO (15), | |
683 | EMPTY_HOWTO (16), | |
684 | EMPTY_HOWTO (17), | |
685 | EMPTY_HOWTO (18), | |
686 | EMPTY_HOWTO (19), | |
687 | EMPTY_HOWTO (20), | |
688 | EMPTY_HOWTO (21), | |
689 | EMPTY_HOWTO (22), | |
690 | EMPTY_HOWTO (23), | |
691 | EMPTY_HOWTO (24), | |
692 | EMPTY_HOWTO (25), | |
693 | EMPTY_HOWTO (26), | |
694 | EMPTY_HOWTO (27), | |
695 | EMPTY_HOWTO (28), | |
696 | EMPTY_HOWTO (29), | |
697 | EMPTY_HOWTO (30), | |
698 | EMPTY_HOWTO (31), | |
699 | EMPTY_HOWTO (32), | |
700 | ||
701 | /* A 16 bit absolute relocation. */ | |
702 | HOWTO (R_M32R_16_RELA, /* type */ | |
703 | 0, /* rightshift */ | |
704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
097f809a NC |
705 | 16, /* bitsize */ |
706 | FALSE, /* pc_relative */ | |
707 | 0, /* bitpos */ | |
47b0e7ad | 708 | complain_overflow_bitfield, /* complain_on_overflow */ |
097f809a | 709 | bfd_elf_generic_reloc, /* special_function */ |
47b0e7ad | 710 | "R_M32R_16_RELA", /* name */ |
097f809a | 711 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
712 | 0xffff, /* src_mask */ |
713 | 0xffff, /* dst_mask */ | |
097f809a NC |
714 | FALSE), /* pcrel_offset */ |
715 | ||
47b0e7ad NC |
716 | /* A 32 bit absolute relocation. */ |
717 | HOWTO (R_M32R_32_RELA, /* type */ | |
718 | 0, /* rightshift */ | |
097f809a | 719 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
47b0e7ad | 720 | 32, /* bitsize */ |
097f809a NC |
721 | FALSE, /* pc_relative */ |
722 | 0, /* bitpos */ | |
47b0e7ad NC |
723 | complain_overflow_bitfield, /* complain_on_overflow */ |
724 | bfd_elf_generic_reloc,/* special_function */ | |
725 | "R_M32R_32_RELA", /* name */ | |
097f809a | 726 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
727 | 0xffffffff, /* src_mask */ |
728 | 0xffffffff, /* dst_mask */ | |
097f809a NC |
729 | FALSE), /* pcrel_offset */ |
730 | ||
47b0e7ad NC |
731 | /* A 24 bit address. */ |
732 | HOWTO (R_M32R_24_RELA, /* type */ | |
097f809a NC |
733 | 0, /* rightshift */ |
734 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
47b0e7ad | 735 | 24, /* bitsize */ |
097f809a NC |
736 | FALSE, /* pc_relative */ |
737 | 0, /* bitpos */ | |
47b0e7ad NC |
738 | complain_overflow_unsigned, /* complain_on_overflow */ |
739 | bfd_elf_generic_reloc,/* special_function */ | |
740 | "R_M32R_24_RELA", /* name */ | |
097f809a | 741 | FALSE, /* partial_inplace */ |
47b0e7ad NC |
742 | 0xffffff, /* src_mask */ |
743 | 0xffffff, /* dst_mask */ | |
097f809a | 744 | FALSE), /* pcrel_offset */ |
252b5132 | 745 | |
47b0e7ad NC |
746 | HOWTO (R_M32R_10_PCREL_RELA, /* type */ |
747 | 2, /* rightshift */ | |
748 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
749 | 10, /* bitsize */ | |
750 | TRUE, /* pc_relative */ | |
751 | 0, /* bitpos */ | |
752 | complain_overflow_signed, /* complain_on_overflow */ | |
753 | m32r_elf_10_pcrel_reloc, /* special_function */ | |
754 | "R_M32R_10_PCREL_RELA",/* name */ | |
755 | FALSE, /* partial_inplace */ | |
756 | 0xff, /* src_mask */ | |
757 | 0xff, /* dst_mask */ | |
758 | TRUE), /* pcrel_offset */ | |
252b5132 | 759 | |
47b0e7ad NC |
760 | /* A relative 18 bit relocation, right shifted by 2. */ |
761 | HOWTO (R_M32R_18_PCREL_RELA, /* type */ | |
762 | 2, /* rightshift */ | |
763 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
764 | 16, /* bitsize */ | |
765 | TRUE, /* pc_relative */ | |
766 | 0, /* bitpos */ | |
767 | complain_overflow_signed, /* complain_on_overflow */ | |
768 | bfd_elf_generic_reloc, /* special_function */ | |
769 | "R_M32R_18_PCREL_RELA",/* name */ | |
770 | FALSE, /* partial_inplace */ | |
771 | 0xffff, /* src_mask */ | |
772 | 0xffff, /* dst_mask */ | |
773 | TRUE), /* pcrel_offset */ | |
252b5132 | 774 | |
47b0e7ad NC |
775 | /* A relative 26 bit relocation, right shifted by 2. */ |
776 | HOWTO (R_M32R_26_PCREL_RELA, /* type */ | |
777 | 2, /* rightshift */ | |
778 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
779 | 26, /* bitsize */ | |
780 | TRUE, /* pc_relative */ | |
781 | 0, /* bitpos */ | |
782 | complain_overflow_signed, /* complain_on_overflow */ | |
783 | bfd_elf_generic_reloc, /* special_function */ | |
784 | "R_M32R_26_PCREL_RELA",/* name */ | |
785 | FALSE, /* partial_inplace */ | |
786 | 0xffffff, /* src_mask */ | |
787 | 0xffffff, /* dst_mask */ | |
788 | TRUE), /* pcrel_offset */ | |
4c72e23a | 789 | |
47b0e7ad NC |
790 | /* High 16 bits of address when lower 16 is or'd in. */ |
791 | HOWTO (R_M32R_HI16_ULO_RELA, /* type */ | |
792 | 16, /* rightshift */ | |
793 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 16, /* bitsize */ | |
795 | FALSE, /* pc_relative */ | |
796 | 0, /* bitpos */ | |
797 | complain_overflow_dont, /* complain_on_overflow */ | |
798 | bfd_elf_generic_reloc, /* special_function */ | |
799 | "R_M32R_HI16_ULO_RELA",/* name */ | |
800 | FALSE, /* partial_inplace */ | |
801 | 0x0000ffff, /* src_mask */ | |
802 | 0x0000ffff, /* dst_mask */ | |
803 | FALSE), /* pcrel_offset */ | |
252b5132 | 804 | |
47b0e7ad NC |
805 | /* High 16 bits of address when lower 16 is added in. */ |
806 | HOWTO (R_M32R_HI16_SLO_RELA, /* type */ | |
807 | 16, /* rightshift */ | |
808 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
809 | 16, /* bitsize */ | |
810 | FALSE, /* pc_relative */ | |
811 | 0, /* bitpos */ | |
812 | complain_overflow_dont, /* complain_on_overflow */ | |
813 | bfd_elf_generic_reloc, /* special_function */ | |
814 | "R_M32R_HI16_SLO_RELA",/* name */ | |
815 | FALSE, /* partial_inplace */ | |
816 | 0x0000ffff, /* src_mask */ | |
817 | 0x0000ffff, /* dst_mask */ | |
818 | FALSE), /* pcrel_offset */ | |
252b5132 | 819 | |
47b0e7ad NC |
820 | /* Lower 16 bits of address. */ |
821 | HOWTO (R_M32R_LO16_RELA, /* type */ | |
822 | 0, /* rightshift */ | |
823 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
824 | 16, /* bitsize */ | |
825 | FALSE, /* pc_relative */ | |
826 | 0, /* bitpos */ | |
827 | complain_overflow_dont, /* complain_on_overflow */ | |
828 | bfd_elf_generic_reloc, /* special_function */ | |
829 | "R_M32R_LO16_RELA", /* name */ | |
830 | FALSE, /* partial_inplace */ | |
831 | 0x0000ffff, /* src_mask */ | |
832 | 0x0000ffff, /* dst_mask */ | |
833 | FALSE), /* pcrel_offset */ | |
252b5132 | 834 | |
47b0e7ad NC |
835 | /* Small data area 16 bits offset. */ |
836 | HOWTO (R_M32R_SDA16_RELA, /* type */ | |
837 | 0, /* rightshift */ | |
838 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
839 | 16, /* bitsize */ | |
840 | FALSE, /* pc_relative */ | |
841 | 0, /* bitpos */ | |
842 | complain_overflow_signed, /* complain_on_overflow */ | |
843 | bfd_elf_generic_reloc, /* special_function */ | |
844 | "R_M32R_SDA16_RELA", /* name */ | |
845 | TRUE, /* partial_inplace */ /* FIXME: correct? */ | |
846 | 0x0000ffff, /* src_mask */ | |
847 | 0x0000ffff, /* dst_mask */ | |
848 | FALSE), /* pcrel_offset */ | |
252b5132 | 849 | |
47b0e7ad NC |
850 | /* GNU extension to record C++ vtable hierarchy. */ |
851 | HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */ | |
852 | 0, /* rightshift */ | |
853 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
854 | 0, /* bitsize */ | |
855 | FALSE, /* pc_relative */ | |
856 | 0, /* bitpos */ | |
857 | complain_overflow_dont, /* complain_on_overflow */ | |
858 | NULL, /* special_function */ | |
859 | "R_M32R_RELA_GNU_VTINHERIT", /* name */ | |
860 | FALSE, /* partial_inplace */ | |
861 | 0, /* src_mask */ | |
862 | 0, /* dst_mask */ | |
863 | FALSE), /* pcrel_offset */ | |
252b5132 | 864 | |
47b0e7ad NC |
865 | /* GNU extension to record C++ vtable member usage. */ |
866 | HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */ | |
867 | 0, /* rightshift */ | |
868 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
869 | 0, /* bitsize */ | |
870 | FALSE, /* pc_relative */ | |
871 | 0, /* bitpos */ | |
872 | complain_overflow_dont, /* complain_on_overflow */ | |
873 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
874 | "R_M32R_RELA_GNU_VTENTRY", /* name */ | |
875 | FALSE, /* partial_inplace */ | |
876 | 0, /* src_mask */ | |
877 | 0, /* dst_mask */ | |
878 | FALSE), /* pcrel_offset */ | |
252b5132 | 879 | |
157e7bd1 NC |
880 | /* A 32 bit PC relative relocation. */ |
881 | HOWTO (R_M32R_REL32, /* type */ | |
882 | 0, /* rightshift */ | |
883 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
884 | 32, /* bitsize */ | |
885 | TRUE, /* pc_relative */ | |
886 | 0, /* bitpos */ | |
887 | complain_overflow_bitfield, /* complain_on_overflow */ | |
888 | bfd_elf_generic_reloc,/* special_function */ | |
889 | "R_M32R_REL32", /* name */ | |
890 | FALSE, /* partial_inplace */ | |
891 | 0xffffffff, /* src_mask */ | |
892 | 0xffffffff, /* dst_mask */ | |
893 | TRUE), /* pcrel_offset */ | |
894 | ||
47b0e7ad NC |
895 | EMPTY_HOWTO (46), |
896 | EMPTY_HOWTO (47), | |
252b5132 | 897 | |
47b0e7ad NC |
898 | /* Like R_M32R_24, but referring to the GOT table entry for |
899 | the symbol. */ | |
900 | HOWTO (R_M32R_GOT24, /* type */ | |
901 | 0, /* rightshift */ | |
902 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
903 | 24, /* bitsize */ | |
904 | FALSE, /* pc_relative */ | |
905 | 0, /* bitpos */ | |
906 | complain_overflow_unsigned, /* complain_on_overflow */ | |
907 | bfd_elf_generic_reloc, /* special_function */ | |
908 | "R_M32R_GOT24", /* name */ | |
909 | FALSE, /* partial_inplace */ | |
910 | 0xffffff, /* src_mask */ | |
911 | 0xffffff, /* dst_mask */ | |
912 | FALSE), /* pcrel_offset */ | |
8b125cde | 913 | |
47b0e7ad NC |
914 | /* Like R_M32R_PCREL, but referring to the procedure linkage table |
915 | entry for the symbol. */ | |
916 | HOWTO (R_M32R_26_PLTREL, /* type */ | |
917 | 2, /* rightshift */ | |
918 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
919 | 24, /* bitsize */ | |
920 | TRUE, /* pc_relative */ | |
921 | 0, /* bitpos */ | |
922 | complain_overflow_signed, /* complain_on_overflow */ | |
923 | bfd_elf_generic_reloc, /* special_function */ | |
924 | "R_M32R_26_PLTREL", /* name */ | |
925 | FALSE, /* partial_inplace */ | |
926 | 0xffffff, /* src_mask */ | |
927 | 0xffffff, /* dst_mask */ | |
928 | TRUE), /* pcrel_offset */ | |
8b125cde | 929 | |
47b0e7ad NC |
930 | /* This is used only by the dynamic linker. The symbol should exist |
931 | both in the object being run and in some shared library. The | |
932 | dynamic linker copies the data addressed by the symbol from the | |
933 | shared library into the object, because the object being | |
934 | run has to have the data at some particular address. */ | |
935 | HOWTO (R_M32R_COPY, /* type */ | |
936 | 0, /* rightshift */ | |
937 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
938 | 32, /* bitsize */ | |
939 | FALSE, /* pc_relative */ | |
940 | 0, /* bitpos */ | |
941 | complain_overflow_bitfield, /* complain_on_overflow */ | |
942 | bfd_elf_generic_reloc, /* special_function */ | |
943 | "R_M32R_COPY", /* name */ | |
944 | FALSE, /* partial_inplace */ | |
945 | 0xffffffff, /* src_mask */ | |
946 | 0xffffffff, /* dst_mask */ | |
947 | FALSE), /* pcrel_offset */ | |
8b125cde | 948 | |
47b0e7ad NC |
949 | /* Like R_M32R_24, but used when setting global offset table |
950 | entries. */ | |
951 | HOWTO (R_M32R_GLOB_DAT, /* type */ | |
952 | 0, /* rightshift */ | |
953 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
954 | 32, /* bitsize */ | |
955 | FALSE, /* pc_relative */ | |
956 | 0, /* bitpos */ | |
957 | complain_overflow_bitfield, /* complain_on_overflow */ | |
958 | bfd_elf_generic_reloc, /* special_function */ | |
959 | "R_M32R_GLOB_DAT", /* name */ | |
960 | FALSE, /* partial_inplace */ | |
961 | 0xffffffff, /* src_mask */ | |
962 | 0xffffffff, /* dst_mask */ | |
963 | FALSE), /* pcrel_offset */ | |
8b125cde | 964 | |
47b0e7ad NC |
965 | /* Marks a procedure linkage table entry for a symbol. */ |
966 | HOWTO (R_M32R_JMP_SLOT, /* type */ | |
967 | 0, /* rightshift */ | |
968 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
969 | 32, /* bitsize */ | |
970 | FALSE, /* pc_relative */ | |
971 | 0, /* bitpos */ | |
972 | complain_overflow_bitfield, /* complain_on_overflow */ | |
973 | bfd_elf_generic_reloc, /* special_function */ | |
974 | "R_M32R_JMP_SLOT", /* name */ | |
975 | FALSE, /* partial_inplace */ | |
976 | 0xffffffff, /* src_mask */ | |
977 | 0xffffffff, /* dst_mask */ | |
978 | FALSE), /* pcrel_offset */ | |
4c72e23a | 979 | |
47b0e7ad NC |
980 | /* Used only by the dynamic linker. When the object is run, this |
981 | longword is set to the load address of the object, plus the | |
982 | addend. */ | |
983 | HOWTO (R_M32R_RELATIVE, /* type */ | |
984 | 0, /* rightshift */ | |
985 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
986 | 32, /* bitsize */ | |
987 | FALSE, /* pc_relative */ | |
988 | 0, /* bitpos */ | |
989 | complain_overflow_bitfield, /* complain_on_overflow */ | |
990 | bfd_elf_generic_reloc, /* special_function */ | |
991 | "R_M32R_RELATIVE", /* name */ | |
992 | FALSE, /* partial_inplace */ | |
993 | 0xffffffff, /* src_mask */ | |
994 | 0xffffffff, /* dst_mask */ | |
995 | FALSE), /* pcrel_offset */ | |
4c72e23a | 996 | |
47b0e7ad NC |
997 | HOWTO (R_M32R_GOTOFF, /* type */ |
998 | 0, /* rightshift */ | |
999 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1000 | 24, /* bitsize */ | |
1001 | FALSE, /* pc_relative */ | |
1002 | 0, /* bitpos */ | |
1003 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1004 | bfd_elf_generic_reloc, /* special_function */ | |
1005 | "R_M32R_GOTOFF", /* name */ | |
1006 | FALSE, /* partial_inplace */ | |
1007 | 0xffffff, /* src_mask */ | |
1008 | 0xffffff, /* dst_mask */ | |
1009 | FALSE), /* pcrel_offset */ | |
4c72e23a | 1010 | |
47b0e7ad NC |
1011 | /* An PC Relative 24-bit relocation used when setting PIC offset |
1012 | table register. */ | |
1013 | HOWTO (R_M32R_GOTPC24, /* type */ | |
1014 | 0, /* rightshift */ | |
1015 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1016 | 24, /* bitsize */ | |
1017 | TRUE, /* pc_relative */ | |
1018 | 0, /* bitpos */ | |
1019 | complain_overflow_unsigned, /* complain_on_overflow */ | |
1020 | bfd_elf_generic_reloc, /* special_function */ | |
1021 | "R_M32R_GOTPC24", /* name */ | |
1022 | FALSE, /* partial_inplace */ | |
1023 | 0xffffff, /* src_mask */ | |
1024 | 0xffffff, /* dst_mask */ | |
1025 | TRUE), /* pcrel_offset */ | |
4c72e23a | 1026 | |
47b0e7ad NC |
1027 | /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for |
1028 | the symbol. */ | |
1029 | HOWTO (R_M32R_GOT16_HI_ULO, /* type */ | |
1030 | 16, /* rightshift */ | |
1031 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1032 | 16, /* bitsize */ | |
1033 | FALSE, /* pc_relative */ | |
1034 | 0, /* bitpos */ | |
1035 | complain_overflow_dont, /* complain_on_overflow */ | |
1036 | bfd_elf_generic_reloc, /* special_function */ | |
1037 | "R_M32R_GOT16_HI_ULO", /* name */ | |
1038 | FALSE, /* partial_inplace */ | |
1039 | 0x0000ffff, /* src_mask */ | |
1040 | 0x0000ffff, /* dst_mask */ | |
1041 | FALSE), /* pcrel_offset */ | |
4c72e23a | 1042 | |
47b0e7ad NC |
1043 | /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for |
1044 | the symbol. */ | |
1045 | HOWTO (R_M32R_GOT16_HI_SLO, /* type */ | |
1046 | 16, /* rightshift */ | |
1047 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1048 | 16, /* bitsize */ | |
1049 | FALSE, /* pc_relative */ | |
1050 | 0, /* bitpos */ | |
1051 | complain_overflow_dont, /* complain_on_overflow */ | |
1052 | bfd_elf_generic_reloc, /* special_function */ | |
1053 | "R_M32R_GOT16_HI_SLO", /* name */ | |
1054 | FALSE, /* partial_inplace */ | |
1055 | 0x0000ffff, /* src_mask */ | |
1056 | 0x0000ffff, /* dst_mask */ | |
1057 | FALSE), /* pcrel_offset */ | |
8b125cde | 1058 | |
47b0e7ad NC |
1059 | /* Like R_M32R_LO16, but referring to the GOT table entry for |
1060 | the symbol. */ | |
1061 | HOWTO (R_M32R_GOT16_LO, /* type */ | |
1062 | 0, /* rightshift */ | |
1063 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1064 | 16, /* bitsize */ | |
1065 | FALSE, /* pc_relative */ | |
1066 | 0, /* bitpos */ | |
1067 | complain_overflow_dont, /* complain_on_overflow */ | |
1068 | bfd_elf_generic_reloc, /* special_function */ | |
1069 | "R_M32R_GOT16_LO", /* name */ | |
1070 | FALSE, /* partial_inplace */ | |
1071 | 0x0000ffff, /* src_mask */ | |
1072 | 0x0000ffff, /* dst_mask */ | |
1073 | FALSE), /* pcrel_offset */ | |
4c72e23a | 1074 | |
47b0e7ad NC |
1075 | /* An PC Relative relocation used when setting PIC offset table register. |
1076 | Like R_M32R_HI16_ULO, but referring to the GOT table entry for | |
1077 | the symbol. */ | |
1078 | HOWTO (R_M32R_GOTPC_HI_ULO, /* type */ | |
1079 | 16, /* rightshift */ | |
1080 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1081 | 16, /* bitsize */ | |
1082 | FALSE, /* pc_relative */ | |
1083 | 0, /* bitpos */ | |
1084 | complain_overflow_dont, /* complain_on_overflow */ | |
1085 | bfd_elf_generic_reloc, /* special_function */ | |
1086 | "R_M32R_GOTPC_HI_ULO", /* name */ | |
1087 | FALSE, /* partial_inplace */ | |
1088 | 0x0000ffff, /* src_mask */ | |
1089 | 0x0000ffff, /* dst_mask */ | |
1090 | TRUE), /* pcrel_offset */ | |
4c72e23a | 1091 | |
47b0e7ad NC |
1092 | /* An PC Relative relocation used when setting PIC offset table register. |
1093 | Like R_M32R_HI16_SLO, but referring to the GOT table entry for | |
1094 | the symbol. */ | |
1095 | HOWTO (R_M32R_GOTPC_HI_SLO, /* type */ | |
1096 | 16, /* rightshift */ | |
1097 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1098 | 16, /* bitsize */ | |
1099 | FALSE, /* pc_relative */ | |
1100 | 0, /* bitpos */ | |
1101 | complain_overflow_dont, /* complain_on_overflow */ | |
1102 | bfd_elf_generic_reloc, /* special_function */ | |
1103 | "R_M32R_GOTPC_HI_SLO", /* name */ | |
1104 | FALSE, /* partial_inplace */ | |
1105 | 0x0000ffff, /* src_mask */ | |
1106 | 0x0000ffff, /* dst_mask */ | |
1107 | TRUE), /* pcrel_offset */ | |
4c72e23a | 1108 | |
47b0e7ad NC |
1109 | /* An PC Relative relocation used when setting PIC offset table register. |
1110 | Like R_M32R_LO16, but referring to the GOT table entry for | |
1111 | the symbol. */ | |
1112 | HOWTO (R_M32R_GOTPC_LO, /* type */ | |
1113 | 0, /* rightshift */ | |
1114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1115 | 16, /* bitsize */ | |
1116 | FALSE, /* pc_relative */ | |
1117 | 0, /* bitpos */ | |
1118 | complain_overflow_dont, /* complain_on_overflow */ | |
1119 | bfd_elf_generic_reloc, /* special_function */ | |
1120 | "R_M32R_GOTPC_LO", /* name */ | |
1121 | FALSE, /* partial_inplace */ | |
1122 | 0x0000ffff, /* src_mask */ | |
1123 | 0x0000ffff, /* dst_mask */ | |
1124 | TRUE), /* pcrel_offset */ | |
252b5132 | 1125 | |
47b0e7ad NC |
1126 | HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */ |
1127 | 16, /* rightshift */ | |
1128 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1129 | 16, /* bitsize */ | |
1130 | FALSE, /* pc_relative */ | |
1131 | 0, /* bitpos */ | |
1132 | complain_overflow_dont, /* complain_on_overflow */ | |
1133 | bfd_elf_generic_reloc, /* special_function */ | |
1134 | "R_M32R_GOTOFF_HI_ULO",/* name */ | |
1135 | FALSE, /* partial_inplace */ | |
1136 | 0x0000ffff, /* src_mask */ | |
1137 | 0x0000ffff, /* dst_mask */ | |
1138 | FALSE), /* pcrel_offset */ | |
252b5132 | 1139 | |
47b0e7ad NC |
1140 | HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */ |
1141 | 16, /* rightshift */ | |
1142 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1143 | 16, /* bitsize */ | |
1144 | FALSE, /* pc_relative */ | |
1145 | 0, /* bitpos */ | |
1146 | complain_overflow_dont, /* complain_on_overflow */ | |
1147 | bfd_elf_generic_reloc, /* special_function */ | |
1148 | "R_M32R_GOTOFF_HI_SLO",/* name */ | |
1149 | FALSE, /* partial_inplace */ | |
1150 | 0x0000ffff, /* src_mask */ | |
1151 | 0x0000ffff, /* dst_mask */ | |
1152 | FALSE), /* pcrel_offset */ | |
252b5132 | 1153 | |
47b0e7ad NC |
1154 | HOWTO (R_M32R_GOTOFF_LO, /* type */ |
1155 | 0, /* rightshift */ | |
1156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1157 | 16, /* bitsize */ | |
1158 | FALSE, /* pc_relative */ | |
1159 | 0, /* bitpos */ | |
1160 | complain_overflow_dont, /* complain_on_overflow */ | |
1161 | bfd_elf_generic_reloc, /* special_function */ | |
1162 | "R_M32R_GOTOFF_LO", /* name */ | |
1163 | FALSE, /* partial_inplace */ | |
1164 | 0x0000ffff, /* src_mask */ | |
1165 | 0x0000ffff, /* dst_mask */ | |
1166 | FALSE), /* pcrel_offset */ | |
1167 | }; | |
252b5132 | 1168 | |
252b5132 RH |
1169 | /* Map BFD reloc types to M32R ELF reloc types. */ |
1170 | ||
1171 | struct m32r_reloc_map | |
1172 | { | |
1173 | bfd_reloc_code_real_type bfd_reloc_val; | |
1174 | unsigned char elf_reloc_val; | |
1175 | }; | |
1176 | ||
d5b2f13b | 1177 | #ifdef USE_M32R_OLD_RELOC |
6edf0760 | 1178 | static const struct m32r_reloc_map m32r_reloc_map_old[] = |
252b5132 RH |
1179 | { |
1180 | { BFD_RELOC_NONE, R_M32R_NONE }, | |
1181 | { BFD_RELOC_16, R_M32R_16 }, | |
1182 | { BFD_RELOC_32, R_M32R_32 }, | |
1183 | { BFD_RELOC_M32R_24, R_M32R_24 }, | |
1184 | { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL }, | |
1185 | { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL }, | |
1186 | { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL }, | |
1187 | { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO }, | |
1188 | { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO }, | |
1189 | { BFD_RELOC_M32R_LO16, R_M32R_LO16 }, | |
1190 | { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 }, | |
1191 | { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT }, | |
1192 | { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY }, | |
1193 | }; | |
d5b2f13b | 1194 | #else |
6edf0760 NC |
1195 | static const struct m32r_reloc_map m32r_reloc_map[] = |
1196 | { | |
1197 | { BFD_RELOC_NONE, R_M32R_NONE }, | |
1198 | { BFD_RELOC_16, R_M32R_16_RELA }, | |
1199 | { BFD_RELOC_32, R_M32R_32_RELA }, | |
1200 | { BFD_RELOC_M32R_24, R_M32R_24_RELA }, | |
1201 | { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA }, | |
1202 | { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA }, | |
1203 | { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA }, | |
1204 | { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA }, | |
1205 | { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA }, | |
1206 | { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA }, | |
1207 | { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA }, | |
1208 | { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT }, | |
1209 | { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY }, | |
157e7bd1 | 1210 | { BFD_RELOC_32_PCREL, R_M32R_REL32 }, |
41978308 | 1211 | |
6edf0760 NC |
1212 | { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 }, |
1213 | { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL }, | |
1214 | { BFD_RELOC_M32R_COPY, R_M32R_COPY }, | |
1215 | { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT }, | |
1216 | { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT }, | |
1217 | { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE }, | |
1218 | { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF }, | |
1219 | { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 }, | |
1220 | { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO }, | |
1221 | { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO }, | |
1222 | { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO }, | |
1223 | { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO }, | |
1224 | { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO }, | |
1225 | { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO }, | |
097f809a NC |
1226 | { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO }, |
1227 | { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO }, | |
1228 | { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO }, | |
6edf0760 | 1229 | }; |
d5b2f13b | 1230 | #endif |
6edf0760 | 1231 | |
252b5132 | 1232 | static reloc_howto_type * |
47b0e7ad NC |
1233 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1234 | bfd_reloc_code_real_type code) | |
252b5132 RH |
1235 | { |
1236 | unsigned int i; | |
1237 | ||
6edf0760 NC |
1238 | #ifdef USE_M32R_OLD_RELOC |
1239 | for (i = 0; | |
1240 | i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map); | |
1241 | i++) | |
47b0e7ad NC |
1242 | if (m32r_reloc_map_old[i].bfd_reloc_val == code) |
1243 | return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val]; | |
1244 | ||
6edf0760 NC |
1245 | #else /* ! USE_M32R_OLD_RELOC */ |
1246 | ||
252b5132 RH |
1247 | for (i = 0; |
1248 | i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map); | |
1249 | i++) | |
47b0e7ad NC |
1250 | if (m32r_reloc_map[i].bfd_reloc_val == code) |
1251 | return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val]; | |
6edf0760 | 1252 | #endif |
252b5132 RH |
1253 | |
1254 | return NULL; | |
1255 | } | |
1256 | ||
157090f7 AM |
1257 | static reloc_howto_type * |
1258 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1259 | const char *r_name) | |
1260 | { | |
1261 | unsigned int i; | |
1262 | ||
1263 | for (i = 0; | |
1264 | i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]); | |
1265 | i++) | |
1266 | if (m32r_elf_howto_table[i].name != NULL | |
1267 | && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0) | |
1268 | return &m32r_elf_howto_table[i]; | |
1269 | ||
1270 | return NULL; | |
1271 | } | |
1272 | ||
252b5132 RH |
1273 | /* Set the howto pointer for an M32R ELF reloc. */ |
1274 | ||
1275 | static void | |
47b0e7ad NC |
1276 | m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, |
1277 | arelent *cache_ptr, | |
1278 | Elf_Internal_Rela *dst) | |
252b5132 RH |
1279 | { |
1280 | unsigned int r_type; | |
1281 | ||
1282 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
1283 | if (r_type > (unsigned int) R_M32R_GNU_VTENTRY) |
1284 | { | |
64d29018 | 1285 | _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type); |
5860e3f8 NC |
1286 | r_type = 0; |
1287 | } | |
252b5132 RH |
1288 | cache_ptr->howto = &m32r_elf_howto_table[r_type]; |
1289 | } | |
6edf0760 NC |
1290 | |
1291 | static void | |
47b0e7ad NC |
1292 | m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
1293 | arelent *cache_ptr, | |
1294 | Elf_Internal_Rela *dst) | |
6edf0760 NC |
1295 | { |
1296 | BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE) | |
1297 | || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY) | |
1298 | && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max))); | |
1299 | cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; | |
1300 | } | |
1301 | ||
252b5132 RH |
1302 | \f |
1303 | /* Given a BFD section, try to locate the corresponding ELF section | |
1304 | index. */ | |
1305 | ||
47b0e7ad NC |
1306 | static bfd_boolean |
1307 | _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, | |
1308 | asection *sec, | |
1309 | int *retval) | |
252b5132 RH |
1310 | { |
1311 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
1312 | { | |
1313 | *retval = SHN_M32R_SCOMMON; | |
b34976b6 | 1314 | return TRUE; |
252b5132 | 1315 | } |
b34976b6 | 1316 | return FALSE; |
252b5132 RH |
1317 | } |
1318 | ||
1319 | /* M32R ELF uses two common sections. One is the usual one, and the other | |
1320 | is for small objects. All the small objects are kept together, and then | |
1321 | referenced via one register, which yields faster assembler code. It is | |
1322 | up to the compiler to emit an instruction to load the register with | |
1323 | _SDA_BASE. This is what we use for the small common section. This | |
1324 | approach is copied from elf32-mips.c. */ | |
1325 | static asection m32r_elf_scom_section; | |
1326 | static asymbol m32r_elf_scom_symbol; | |
1327 | static asymbol *m32r_elf_scom_symbol_ptr; | |
1328 | ||
1329 | /* Handle the special M32R section numbers that a symbol may use. */ | |
1330 | ||
47b0e7ad NC |
1331 | static void |
1332 | _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) | |
252b5132 | 1333 | { |
47b0e7ad | 1334 | elf_symbol_type *elfsym = (elf_symbol_type *) asym; |
252b5132 RH |
1335 | |
1336 | switch (elfsym->internal_elf_sym.st_shndx) | |
1337 | { | |
1338 | case SHN_M32R_SCOMMON: | |
1339 | if (m32r_elf_scom_section.name == NULL) | |
1340 | { | |
1341 | /* Initialize the small common section. */ | |
1342 | m32r_elf_scom_section.name = ".scommon"; | |
1343 | m32r_elf_scom_section.flags = SEC_IS_COMMON; | |
1344 | m32r_elf_scom_section.output_section = &m32r_elf_scom_section; | |
1345 | m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol; | |
1346 | m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr; | |
1347 | m32r_elf_scom_symbol.name = ".scommon"; | |
1348 | m32r_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
1349 | m32r_elf_scom_symbol.section = &m32r_elf_scom_section; | |
1350 | m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol; | |
1351 | } | |
1352 | asym->section = &m32r_elf_scom_section; | |
1353 | asym->value = elfsym->internal_elf_sym.st_size; | |
1354 | break; | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | /* Hook called by the linker routine which adds symbols from an object | |
1359 | file. We must handle the special M32R section numbers here. | |
1360 | We also keep watching for whether we need to create the sdata special | |
1361 | linker sections. */ | |
1362 | ||
b34976b6 | 1363 | static bfd_boolean |
47b0e7ad NC |
1364 | m32r_elf_add_symbol_hook (bfd *abfd, |
1365 | struct bfd_link_info *info, | |
1366 | Elf_Internal_Sym *sym, | |
1367 | const char **namep, | |
1368 | flagword *flagsp ATTRIBUTE_UNUSED, | |
1369 | asection **secp, | |
1370 | bfd_vma *valp) | |
252b5132 | 1371 | { |
0e1862bb | 1372 | if (! bfd_link_relocatable (info) |
252b5132 | 1373 | && (*namep)[0] == '_' && (*namep)[1] == 'S' |
4ab82700 | 1374 | && strcmp (*namep, "_SDA_BASE_") == 0 |
0eddce27 | 1375 | && is_elf_hash_table (info->hash)) |
252b5132 RH |
1376 | { |
1377 | /* This is simpler than using _bfd_elf_create_linker_section | |
1378 | (our needs are simpler than ppc's needs). Also | |
1379 | _bfd_elf_create_linker_section currently has a bug where if a .sdata | |
1380 | section already exists a new one is created that follows it which | |
1381 | screws of _SDA_BASE_ address calcs because output_offset != 0. */ | |
1382 | struct elf_link_hash_entry *h; | |
14a793b2 | 1383 | struct bfd_link_hash_entry *bh; |
252b5132 RH |
1384 | asection *s = bfd_get_section_by_name (abfd, ".sdata"); |
1385 | ||
6edf0760 | 1386 | /* The following code was cobbled from elf32-ppc.c and elflink.c. */ |
6edf0760 NC |
1387 | if (s == NULL) |
1388 | { | |
1389 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
1390 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1391 | ||
3496cb2a L |
1392 | s = bfd_make_section_anyway_with_flags (abfd, ".sdata", |
1393 | flags); | |
6edf0760 NC |
1394 | if (s == NULL) |
1395 | return FALSE; | |
a253d456 NC |
1396 | if (! bfd_set_section_alignment (abfd, s, 2)) |
1397 | return FALSE; | |
6edf0760 NC |
1398 | } |
1399 | ||
1400 | bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", | |
1401 | FALSE, FALSE, FALSE); | |
1402 | ||
1403 | if ((bh == NULL || bh->type == bfd_link_hash_undefined) | |
1404 | && !(_bfd_generic_link_add_one_symbol (info, | |
1405 | abfd, | |
1406 | "_SDA_BASE_", | |
1407 | BSF_GLOBAL, | |
1408 | s, | |
1409 | (bfd_vma) 32768, | |
47b0e7ad | 1410 | NULL, |
6edf0760 NC |
1411 | FALSE, |
1412 | get_elf_backend_data (abfd)->collect, | |
1413 | &bh))) | |
1414 | return FALSE; | |
1415 | h = (struct elf_link_hash_entry *) bh; | |
1416 | h->type = STT_OBJECT; | |
1417 | } | |
1418 | ||
1419 | switch (sym->st_shndx) | |
1420 | { | |
1421 | case SHN_M32R_SCOMMON: | |
1422 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
1423 | (*secp)->flags |= SEC_IS_COMMON; | |
1424 | *valp = sym->st_size; | |
1425 | break; | |
1426 | } | |
1427 | ||
1428 | return TRUE; | |
1429 | } | |
1430 | ||
1431 | /* We have to figure out the SDA_BASE value, so that we can adjust the | |
1432 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output | |
1433 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
1434 | target data. We don't need to adjust the symbol value for an | |
1435 | external symbol if we are producing relocatable output. */ | |
1436 | ||
1437 | static bfd_reloc_status_type | |
47b0e7ad NC |
1438 | m32r_elf_final_sda_base (bfd *output_bfd, |
1439 | struct bfd_link_info *info, | |
1440 | const char **error_message, | |
1441 | bfd_vma *psb) | |
6edf0760 NC |
1442 | { |
1443 | if (elf_gp (output_bfd) == 0) | |
1444 | { | |
1445 | struct bfd_link_hash_entry *h; | |
1446 | ||
1447 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); | |
47b0e7ad | 1448 | if (h != NULL && h->type == bfd_link_hash_defined) |
6edf0760 NC |
1449 | elf_gp (output_bfd) = (h->u.def.value |
1450 | + h->u.def.section->output_section->vma | |
1451 | + h->u.def.section->output_offset); | |
1452 | else | |
1453 | { | |
1454 | /* Only get the error once. */ | |
1455 | *psb = elf_gp (output_bfd) = 4; | |
1456 | *error_message = | |
1457 | (const char *) _("SDA relocation when _SDA_BASE_ not defined"); | |
1458 | return bfd_reloc_dangerous; | |
1459 | } | |
1460 | } | |
1461 | *psb = elf_gp (output_bfd); | |
1462 | return bfd_reloc_ok; | |
1463 | } | |
1464 | \f | |
1465 | /* Return size of a PLT entry. */ | |
1466 | #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE | |
1467 | ||
1468 | /* The m32r linker needs to keep track of the number of relocs that it | |
1469 | decides to copy in check_relocs for each symbol. This is so that | |
1470 | it can discard PC relative relocs if it doesn't need them when | |
1471 | linking with -Bsymbolic. We store the information in a field | |
1472 | extending the regular ELF linker hash table. */ | |
1473 | ||
1474 | /* This structure keeps track of the number of PC relative relocs we | |
1475 | have copied for a given symbol. */ | |
1476 | ||
1477 | struct elf_m32r_pcrel_relocs_copied | |
1478 | { | |
1479 | /* Next section. */ | |
1480 | struct elf_m32r_pcrel_relocs_copied *next; | |
1481 | /* A section in dynobj. */ | |
1482 | asection *section; | |
1483 | /* Number of relocs copied in this section. */ | |
1484 | bfd_size_type count; | |
1485 | }; | |
1486 | ||
1487 | /* The sh linker needs to keep track of the number of relocs that it | |
1488 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
1489 | This is so that it can later discard them if they are found to be | |
1490 | unnecessary. We store the information in a field extending the | |
1491 | regular ELF linker hash table. */ | |
1492 | ||
1493 | struct elf_m32r_dyn_relocs | |
1494 | { | |
1495 | struct elf_m32r_dyn_relocs *next; | |
1496 | ||
1497 | /* The input section of the reloc. */ | |
1498 | asection *sec; | |
1499 | ||
1500 | /* Total number of relocs copied for the input section. */ | |
1501 | bfd_size_type count; | |
1502 | ||
1503 | /* Number of pc-relative relocs copied for the input section. */ | |
1504 | bfd_size_type pc_count; | |
1505 | }; | |
1506 | ||
1507 | ||
1508 | /* m32r ELF linker hash entry. */ | |
1509 | ||
1510 | struct elf_m32r_link_hash_entry | |
1511 | { | |
1512 | struct elf_link_hash_entry root; | |
1513 | ||
1514 | /* Track dynamic relocs copied for this symbol. */ | |
1515 | struct elf_m32r_dyn_relocs *dyn_relocs; | |
6edf0760 NC |
1516 | }; |
1517 | ||
1518 | /* m32r ELF linker hash table. */ | |
1519 | ||
1520 | struct elf_m32r_link_hash_table | |
1521 | { | |
1522 | struct elf_link_hash_table root; | |
1523 | ||
1524 | /* Short-cuts to get to dynamic linker sections. */ | |
1525 | asection *sgot; | |
1526 | asection *sgotplt; | |
1527 | asection *srelgot; | |
1528 | asection *splt; | |
1529 | asection *srelplt; | |
1530 | asection *sdynbss; | |
1531 | asection *srelbss; | |
1532 | ||
87d72d41 AM |
1533 | /* Small local sym cache. */ |
1534 | struct sym_cache sym_cache; | |
6edf0760 NC |
1535 | }; |
1536 | ||
1537 | /* Traverse an m32r ELF linker hash table. */ | |
1538 | ||
1539 | #define m32r_elf_link_hash_traverse(table, func, info) \ | |
1540 | (elf_link_hash_traverse \ | |
1541 | (&(table)->root, \ | |
47b0e7ad | 1542 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
6edf0760 NC |
1543 | (info))) |
1544 | ||
1545 | /* Get the m32r ELF linker hash table from a link_info structure. */ | |
1546 | ||
6edf0760 | 1547 | #define m32r_elf_hash_table(p) \ |
4dfe6ac6 NC |
1548 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
1549 | == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL) | |
6edf0760 NC |
1550 | |
1551 | /* Create an entry in an m32r ELF linker hash table. */ | |
6edf0760 NC |
1552 | |
1553 | static struct bfd_hash_entry * | |
47b0e7ad NC |
1554 | m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
1555 | struct bfd_hash_table *table, | |
1556 | const char *string) | |
6edf0760 NC |
1557 | { |
1558 | struct elf_m32r_link_hash_entry *ret = | |
1559 | (struct elf_m32r_link_hash_entry *) entry; | |
41978308 | 1560 | |
6edf0760 NC |
1561 | /* Allocate the structure if it has not already been allocated by a |
1562 | subclass. */ | |
47b0e7ad NC |
1563 | if (ret == NULL) |
1564 | ret = bfd_hash_allocate (table, | |
1565 | sizeof (struct elf_m32r_link_hash_entry)); | |
1566 | if (ret == NULL) | |
1567 | return NULL; | |
41978308 | 1568 | |
6edf0760 NC |
1569 | /* Call the allocation method of the superclass. */ |
1570 | ret = ((struct elf_m32r_link_hash_entry *) | |
1571 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
1572 | table, string)); | |
47b0e7ad | 1573 | if (ret != NULL) |
6edf0760 NC |
1574 | { |
1575 | struct elf_m32r_link_hash_entry *eh; | |
41978308 | 1576 | |
6edf0760 NC |
1577 | eh = (struct elf_m32r_link_hash_entry *) ret; |
1578 | eh->dyn_relocs = NULL; | |
6edf0760 | 1579 | } |
41978308 | 1580 | |
6edf0760 NC |
1581 | return (struct bfd_hash_entry *) ret; |
1582 | } | |
1583 | ||
1584 | /* Create an m32r ELF linker hash table. */ | |
6edf0760 NC |
1585 | |
1586 | static struct bfd_link_hash_table * | |
47b0e7ad | 1587 | m32r_elf_link_hash_table_create (bfd *abfd) |
6edf0760 NC |
1588 | { |
1589 | struct elf_m32r_link_hash_table *ret; | |
1590 | bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table); | |
41978308 | 1591 | |
7bf52ea2 | 1592 | ret = bfd_zmalloc (amt); |
47b0e7ad | 1593 | if (ret == NULL) |
6edf0760 | 1594 | return NULL; |
41978308 | 1595 | |
66eb6687 AM |
1596 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
1597 | m32r_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
1598 | sizeof (struct elf_m32r_link_hash_entry), |
1599 | M32R_ELF_DATA)) | |
6edf0760 NC |
1600 | { |
1601 | free (ret); | |
1602 | return NULL; | |
1603 | } | |
41978308 | 1604 | |
6edf0760 NC |
1605 | return &ret->root.root; |
1606 | } | |
1607 | ||
1608 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up | |
1609 | shortcuts to them in our hash table. */ | |
6edf0760 NC |
1610 | |
1611 | static bfd_boolean | |
47b0e7ad | 1612 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
6edf0760 NC |
1613 | { |
1614 | struct elf_m32r_link_hash_table *htab; | |
1615 | ||
1616 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
1617 | return FALSE; | |
1618 | ||
1619 | htab = m32r_elf_hash_table (info); | |
4dfe6ac6 NC |
1620 | if (htab == NULL) |
1621 | return FALSE; | |
1622 | ||
3d4d4302 AM |
1623 | htab->sgot = bfd_get_linker_section (dynobj, ".got"); |
1624 | htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); | |
1625 | htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got"); | |
64e77c6d | 1626 | if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot) |
6edf0760 NC |
1627 | abort (); |
1628 | ||
6edf0760 NC |
1629 | return TRUE; |
1630 | } | |
1631 | ||
1632 | /* Create dynamic sections when linking against a dynamic object. */ | |
1633 | ||
1634 | static bfd_boolean | |
47b0e7ad | 1635 | m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
6edf0760 NC |
1636 | { |
1637 | struct elf_m32r_link_hash_table *htab; | |
1638 | flagword flags, pltflags; | |
47b0e7ad | 1639 | asection *s; |
6edf0760 NC |
1640 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
1641 | int ptralign = 2; /* 32bit */ | |
1642 | ||
1643 | htab = m32r_elf_hash_table (info); | |
4dfe6ac6 NC |
1644 | if (htab == NULL) |
1645 | return FALSE; | |
6edf0760 NC |
1646 | |
1647 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
1648 | .rel[a].bss sections. */ | |
6edf0760 NC |
1649 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
1650 | | SEC_LINKER_CREATED); | |
1651 | ||
1652 | pltflags = flags; | |
1653 | pltflags |= SEC_CODE; | |
1654 | if (bed->plt_not_loaded) | |
1655 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
1656 | if (bed->plt_readonly) | |
1657 | pltflags |= SEC_READONLY; | |
1658 | ||
3d4d4302 | 1659 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
6edf0760 NC |
1660 | htab->splt = s; |
1661 | if (s == NULL | |
6edf0760 NC |
1662 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
1663 | return FALSE; | |
1664 | ||
1665 | if (bed->want_plt_sym) | |
1666 | { | |
1667 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
1668 | .plt section. */ | |
41978308 AM |
1669 | struct bfd_link_hash_entry *bh = NULL; |
1670 | struct elf_link_hash_entry *h; | |
47b0e7ad | 1671 | |
6edf0760 NC |
1672 | if (! (_bfd_generic_link_add_one_symbol |
1673 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
47b0e7ad | 1674 | (bfd_vma) 0, NULL, FALSE, |
41978308 | 1675 | get_elf_backend_data (abfd)->collect, &bh))) |
6edf0760 | 1676 | return FALSE; |
41978308 | 1677 | h = (struct elf_link_hash_entry *) bh; |
f5385ebf | 1678 | h->def_regular = 1; |
6edf0760 | 1679 | h->type = STT_OBJECT; |
7325306f | 1680 | htab->root.hplt = h; |
6edf0760 | 1681 | |
0e1862bb | 1682 | if (bfd_link_pic (info) |
c152c796 | 1683 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
6edf0760 NC |
1684 | return FALSE; |
1685 | } | |
1686 | ||
3d4d4302 AM |
1687 | s = bfd_make_section_anyway_with_flags (abfd, |
1688 | bed->default_use_rela_p | |
1689 | ? ".rela.plt" : ".rel.plt", | |
1690 | flags | SEC_READONLY); | |
6edf0760 NC |
1691 | htab->srelplt = s; |
1692 | if (s == NULL | |
6edf0760 NC |
1693 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
1694 | return FALSE; | |
1695 | ||
1696 | if (htab->sgot == NULL | |
1697 | && ! create_got_section (abfd, info)) | |
1698 | return FALSE; | |
1699 | ||
6edf0760 NC |
1700 | if (bed->want_dynbss) |
1701 | { | |
1702 | /* The .dynbss section is a place to put symbols which are defined | |
1703 | by dynamic objects, are referenced by regular objects, and are | |
1704 | not functions. We must allocate space for them in the process | |
1705 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
1706 | initialize them at run time. The linker script puts the .dynbss | |
1707 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
1708 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
1709 | SEC_ALLOC | SEC_LINKER_CREATED); | |
6edf0760 | 1710 | htab->sdynbss = s; |
3496cb2a | 1711 | if (s == NULL) |
6edf0760 NC |
1712 | return FALSE; |
1713 | /* The .rel[a].bss section holds copy relocs. This section is not | |
1714 | normally needed. We need to create it here, though, so that the | |
1715 | linker will map it to an output section. We can't just create it | |
1716 | only if we need it, because we will not know whether we need it | |
1717 | until we have seen all the input files, and the first time the | |
1718 | main linker code calls BFD after examining all the input files | |
1719 | (size_dynamic_sections) the input sections have already been | |
1720 | mapped to the output sections. If the section turns out not to | |
1721 | be needed, we can discard it later. We will never need this | |
1722 | section when generating a shared object, since they do not use | |
1723 | copy relocs. */ | |
0e1862bb | 1724 | if (! bfd_link_pic (info)) |
6edf0760 | 1725 | { |
3d4d4302 AM |
1726 | s = bfd_make_section_anyway_with_flags (abfd, |
1727 | (bed->default_use_rela_p | |
1728 | ? ".rela.bss" : ".rel.bss"), | |
1729 | flags | SEC_READONLY); | |
6edf0760 NC |
1730 | htab->srelbss = s; |
1731 | if (s == NULL | |
6edf0760 NC |
1732 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
1733 | return FALSE; | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | return TRUE; | |
1738 | } | |
1739 | ||
1740 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
41978308 | 1741 | |
6edf0760 | 1742 | static void |
fcfa13d2 | 1743 | m32r_elf_copy_indirect_symbol (struct bfd_link_info *info, |
6edf0760 NC |
1744 | struct elf_link_hash_entry *dir, |
1745 | struct elf_link_hash_entry *ind) | |
1746 | { | |
47b0e7ad NC |
1747 | struct elf_m32r_link_hash_entry * edir; |
1748 | struct elf_m32r_link_hash_entry * eind; | |
41978308 | 1749 | |
6edf0760 NC |
1750 | edir = (struct elf_m32r_link_hash_entry *) dir; |
1751 | eind = (struct elf_m32r_link_hash_entry *) ind; | |
41978308 | 1752 | |
6edf0760 NC |
1753 | if (eind->dyn_relocs != NULL) |
1754 | { | |
1755 | if (edir->dyn_relocs != NULL) | |
1756 | { | |
1757 | struct elf_m32r_dyn_relocs **pp; | |
1758 | struct elf_m32r_dyn_relocs *p; | |
41978308 | 1759 | |
fcfa13d2 | 1760 | /* Add reloc counts against the indirect sym to the direct sym |
6edf0760 | 1761 | list. Merge any entries against the same section. */ |
47b0e7ad | 1762 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) |
6edf0760 NC |
1763 | { |
1764 | struct elf_m32r_dyn_relocs *q; | |
41978308 | 1765 | |
6edf0760 NC |
1766 | for (q = edir->dyn_relocs; q != NULL; q = q->next) |
1767 | if (q->sec == p->sec) | |
1768 | { | |
1769 | q->pc_count += p->pc_count; | |
1770 | q->count += p->count; | |
1771 | *pp = p->next; | |
1772 | break; | |
1773 | } | |
1774 | if (q == NULL) | |
1775 | pp = &p->next; | |
1776 | } | |
1777 | *pp = edir->dyn_relocs; | |
1778 | } | |
41978308 | 1779 | |
6edf0760 NC |
1780 | edir->dyn_relocs = eind->dyn_relocs; |
1781 | eind->dyn_relocs = NULL; | |
1782 | } | |
41978308 | 1783 | |
fcfa13d2 | 1784 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
6edf0760 NC |
1785 | } |
1786 | ||
1787 | \f | |
1788 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1789 | regular object. The current definition is in some section of the | |
1790 | dynamic object, but we're not including those sections. We have to | |
1791 | change the definition to something the rest of the link can | |
1792 | understand. */ | |
41978308 | 1793 | |
6edf0760 | 1794 | static bfd_boolean |
47b0e7ad NC |
1795 | m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
1796 | struct elf_link_hash_entry *h) | |
6edf0760 NC |
1797 | { |
1798 | struct elf_m32r_link_hash_table *htab; | |
1799 | struct elf_m32r_link_hash_entry *eh; | |
1800 | struct elf_m32r_dyn_relocs *p; | |
1801 | bfd *dynobj; | |
1802 | asection *s; | |
6edf0760 NC |
1803 | |
1804 | #ifdef DEBUG_PIC | |
47b0e7ad | 1805 | printf ("m32r_elf_adjust_dynamic_symbol()\n"); |
6edf0760 | 1806 | #endif |
41978308 | 1807 | |
6edf0760 | 1808 | dynobj = elf_hash_table (info)->dynobj; |
41978308 | 1809 | |
6edf0760 NC |
1810 | /* Make sure we know what is going on here. */ |
1811 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 1812 | && (h->needs_plt |
f6e332e6 | 1813 | || h->u.weakdef != NULL |
f5385ebf AM |
1814 | || (h->def_dynamic |
1815 | && h->ref_regular | |
1816 | && !h->def_regular))); | |
6edf0760 | 1817 | |
6edf0760 NC |
1818 | /* If this is a function, put it in the procedure linkage table. We |
1819 | will fill in the contents of the procedure linkage table later, | |
1820 | when we know the address of the .got section. */ | |
1821 | if (h->type == STT_FUNC | |
f5385ebf | 1822 | || h->needs_plt) |
6edf0760 | 1823 | { |
0e1862bb | 1824 | if (! bfd_link_pic (info) |
f5385ebf AM |
1825 | && !h->def_dynamic |
1826 | && !h->ref_dynamic | |
6edf0760 NC |
1827 | && h->root.type != bfd_link_hash_undefweak |
1828 | && h->root.type != bfd_link_hash_undefined) | |
1829 | { | |
1830 | /* This case can occur if we saw a PLT reloc in an input | |
1831 | file, but the symbol was never referred to by a dynamic | |
1832 | object. In such a case, we don't actually need to build | |
1833 | a procedure linkage table, and we can just do a PCREL | |
1834 | reloc instead. */ | |
1835 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1836 | h->needs_plt = 0; |
6edf0760 NC |
1837 | } |
1838 | ||
1839 | return TRUE; | |
1840 | } | |
1841 | else | |
1842 | h->plt.offset = (bfd_vma) -1; | |
41978308 | 1843 | |
6edf0760 NC |
1844 | /* If this is a weak symbol, and there is a real definition, the |
1845 | processor independent code will have arranged for us to see the | |
1846 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1847 | if (h->u.weakdef != NULL) |
6edf0760 | 1848 | { |
f6e332e6 AM |
1849 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1850 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1851 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1852 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
6edf0760 NC |
1853 | return TRUE; |
1854 | } | |
41978308 | 1855 | |
6edf0760 NC |
1856 | /* This is a reference to a symbol defined by a dynamic object which |
1857 | is not a function. */ | |
41978308 | 1858 | |
6edf0760 NC |
1859 | /* If we are creating a shared library, we must presume that the |
1860 | only references to the symbol are via the global offset table. | |
1861 | For such cases we need not do anything here; the relocations will | |
1862 | be handled correctly by relocate_section. */ | |
0e1862bb | 1863 | if (bfd_link_pic (info)) |
6edf0760 | 1864 | return TRUE; |
41978308 | 1865 | |
6edf0760 NC |
1866 | /* If there are no references to this symbol that do not use the |
1867 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 1868 | if (!h->non_got_ref) |
6edf0760 NC |
1869 | return TRUE; |
1870 | ||
1871 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
1872 | if (info->nocopyreloc) | |
1873 | { | |
f5385ebf | 1874 | h->non_got_ref = 0; |
6edf0760 NC |
1875 | return TRUE; |
1876 | } | |
1877 | ||
1878 | eh = (struct elf_m32r_link_hash_entry *) h; | |
1879 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1880 | { | |
1881 | s = p->sec->output_section; | |
1882 | if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) | |
1883 | break; | |
1884 | } | |
1885 | ||
1886 | /* If we didn't find any dynamic relocs in sections which needs the | |
1887 | copy reloc, then we'll be keeping the dynamic relocs and avoiding | |
1888 | the copy reloc. */ | |
1889 | if (p == NULL) | |
1890 | { | |
f5385ebf | 1891 | h->non_got_ref = 0; |
6edf0760 NC |
1892 | return TRUE; |
1893 | } | |
1894 | ||
1895 | /* We must allocate the symbol in our .dynbss section, which will | |
1896 | become part of the .bss section of the executable. There will be | |
1897 | an entry for this symbol in the .dynsym section. The dynamic | |
1898 | object will contain position independent code, so all references | |
1899 | from the dynamic object to this symbol will go through the global | |
1900 | offset table. The dynamic linker will use the .dynsym entry to | |
1901 | determine the address it must put in the global offset table, so | |
1902 | both the dynamic object and the regular object will refer to the | |
1903 | same memory location for the variable. */ | |
41978308 | 1904 | |
6edf0760 | 1905 | htab = m32r_elf_hash_table (info); |
4dfe6ac6 NC |
1906 | if (htab == NULL) |
1907 | return FALSE; | |
1908 | ||
6edf0760 NC |
1909 | s = htab->sdynbss; |
1910 | BFD_ASSERT (s != NULL); | |
41978308 | 1911 | |
6edf0760 NC |
1912 | /* We must generate a R_M32R_COPY reloc to tell the dynamic linker |
1913 | to copy the initial value out of the dynamic object and into the | |
1914 | runtime process image. We need to remember the offset into the | |
1915 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 1916 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
6edf0760 NC |
1917 | { |
1918 | asection *srel; | |
41978308 | 1919 | |
6edf0760 NC |
1920 | srel = htab->srelbss; |
1921 | BFD_ASSERT (srel != NULL); | |
eea6121a | 1922 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 1923 | h->needs_copy = 1; |
6edf0760 | 1924 | } |
41978308 | 1925 | |
6cabe1ea | 1926 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
6edf0760 NC |
1927 | } |
1928 | ||
6edf0760 NC |
1929 | /* Allocate space in .plt, .got and associated reloc sections for |
1930 | dynamic relocs. */ | |
41978308 | 1931 | |
6edf0760 | 1932 | static bfd_boolean |
47b0e7ad | 1933 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
6edf0760 NC |
1934 | { |
1935 | struct bfd_link_info *info; | |
1936 | struct elf_m32r_link_hash_table *htab; | |
1937 | struct elf_m32r_link_hash_entry *eh; | |
1938 | struct elf_m32r_dyn_relocs *p; | |
41978308 | 1939 | |
6edf0760 NC |
1940 | if (h->root.type == bfd_link_hash_indirect) |
1941 | return TRUE; | |
41978308 | 1942 | |
6edf0760 NC |
1943 | info = (struct bfd_link_info *) inf; |
1944 | htab = m32r_elf_hash_table (info); | |
4dfe6ac6 NC |
1945 | if (htab == NULL) |
1946 | return FALSE; | |
41978308 | 1947 | |
6edf0760 | 1948 | eh = (struct elf_m32r_link_hash_entry *) h; |
41978308 | 1949 | |
6edf0760 NC |
1950 | if (htab->root.dynamic_sections_created |
1951 | && h->plt.refcount > 0) | |
1952 | { | |
1953 | /* Make sure this symbol is output as a dynamic symbol. | |
1954 | Undefined weak syms won't yet be marked as dynamic. */ | |
1955 | if (h->dynindx == -1 | |
f5385ebf | 1956 | && !h->forced_local) |
6edf0760 | 1957 | { |
c152c796 | 1958 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
6edf0760 NC |
1959 | return FALSE; |
1960 | } | |
41978308 | 1961 | |
0e1862bb | 1962 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
6edf0760 NC |
1963 | { |
1964 | asection *s = htab->splt; | |
41978308 | 1965 | |
6edf0760 NC |
1966 | /* If this is the first .plt entry, make room for the special |
1967 | first entry. */ | |
eea6121a AM |
1968 | if (s->size == 0) |
1969 | s->size += PLT_ENTRY_SIZE; | |
41978308 | 1970 | |
eea6121a | 1971 | h->plt.offset = s->size; |
41978308 | 1972 | |
6edf0760 NC |
1973 | /* If this symbol is not defined in a regular file, and we are |
1974 | not generating a shared library, then set the symbol to this | |
1975 | location in the .plt. This is required to make function | |
1976 | pointers compare as equal between the normal executable and | |
1977 | the shared library. */ | |
0e1862bb | 1978 | if (! bfd_link_pic (info) |
f5385ebf | 1979 | && !h->def_regular) |
6edf0760 NC |
1980 | { |
1981 | h->root.u.def.section = s; | |
1982 | h->root.u.def.value = h->plt.offset; | |
1983 | } | |
41978308 | 1984 | |
6edf0760 | 1985 | /* Make room for this entry. */ |
eea6121a | 1986 | s->size += PLT_ENTRY_SIZE; |
41978308 | 1987 | |
6edf0760 NC |
1988 | /* We also need to make an entry in the .got.plt section, which |
1989 | will be placed in the .got section by the linker script. */ | |
eea6121a | 1990 | htab->sgotplt->size += 4; |
41978308 | 1991 | |
6edf0760 | 1992 | /* We also need to make an entry in the .rel.plt section. */ |
eea6121a | 1993 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
6edf0760 NC |
1994 | } |
1995 | else | |
1996 | { | |
1997 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 1998 | h->needs_plt = 0; |
6edf0760 NC |
1999 | } |
2000 | } | |
2001 | else | |
2002 | { | |
2003 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2004 | h->needs_plt = 0; |
6edf0760 | 2005 | } |
41978308 | 2006 | |
6edf0760 NC |
2007 | if (h->got.refcount > 0) |
2008 | { | |
2009 | asection *s; | |
2010 | bfd_boolean dyn; | |
41978308 | 2011 | |
6edf0760 NC |
2012 | /* Make sure this symbol is output as a dynamic symbol. |
2013 | Undefined weak syms won't yet be marked as dynamic. */ | |
2014 | if (h->dynindx == -1 | |
f5385ebf | 2015 | && !h->forced_local) |
6edf0760 | 2016 | { |
c152c796 | 2017 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
6edf0760 NC |
2018 | return FALSE; |
2019 | } | |
41978308 | 2020 | |
6edf0760 NC |
2021 | s = htab->sgot; |
2022 | ||
eea6121a AM |
2023 | h->got.offset = s->size; |
2024 | s->size += 4; | |
6edf0760 | 2025 | dyn = htab->root.dynamic_sections_created; |
0e1862bb | 2026 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
eea6121a | 2027 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
6edf0760 NC |
2028 | } |
2029 | else | |
2030 | h->got.offset = (bfd_vma) -1; | |
41978308 | 2031 | |
6edf0760 NC |
2032 | if (eh->dyn_relocs == NULL) |
2033 | return TRUE; | |
41978308 | 2034 | |
6edf0760 NC |
2035 | /* In the shared -Bsymbolic case, discard space allocated for |
2036 | dynamic pc-relative relocs against symbols which turn out to be | |
2037 | defined in regular objects. For the normal shared case, discard | |
2038 | space for pc-relative relocs that have become local due to symbol | |
2039 | visibility changes. */ | |
2040 | ||
0e1862bb | 2041 | if (bfd_link_pic (info)) |
6edf0760 | 2042 | { |
f5385ebf AM |
2043 | if (h->def_regular |
2044 | && (h->forced_local | |
6edf0760 NC |
2045 | || info->symbolic)) |
2046 | { | |
2047 | struct elf_m32r_dyn_relocs **pp; | |
47b0e7ad NC |
2048 | |
2049 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
6edf0760 NC |
2050 | { |
2051 | p->count -= p->pc_count; | |
2052 | p->pc_count = 0; | |
2053 | if (p->count == 0) | |
2054 | *pp = p->next; | |
2055 | else | |
2056 | pp = &p->next; | |
2057 | } | |
2058 | } | |
22d606e9 AM |
2059 | |
2060 | /* Also discard relocs on undefined weak syms with non-default | |
2061 | visibility. */ | |
2062 | if (eh->dyn_relocs != NULL | |
2063 | && h->root.type == bfd_link_hash_undefweak) | |
2064 | { | |
2065 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2066 | eh->dyn_relocs = NULL; | |
2067 | ||
2068 | /* Make sure undefined weak symbols are output as a dynamic | |
2069 | symbol in PIEs. */ | |
2070 | else if (h->dynindx == -1 | |
2071 | && !h->forced_local) | |
2072 | { | |
2073 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2074 | return FALSE; | |
2075 | } | |
2076 | } | |
6edf0760 NC |
2077 | } |
2078 | else | |
2079 | { | |
2080 | /* For the non-shared case, discard space for relocs against | |
2081 | symbols which turn out to need copy relocs or are not | |
2082 | dynamic. */ | |
41978308 | 2083 | |
f5385ebf AM |
2084 | if (!h->non_got_ref |
2085 | && ((h->def_dynamic | |
2086 | && !h->def_regular) | |
6edf0760 NC |
2087 | || (htab->root.dynamic_sections_created |
2088 | && (h->root.type == bfd_link_hash_undefweak | |
2089 | || h->root.type == bfd_link_hash_undefined)))) | |
2090 | { | |
2091 | /* Make sure this symbol is output as a dynamic symbol. | |
2092 | Undefined weak syms won't yet be marked as dynamic. */ | |
2093 | if (h->dynindx == -1 | |
f5385ebf | 2094 | && !h->forced_local) |
6edf0760 | 2095 | { |
c152c796 | 2096 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
6edf0760 NC |
2097 | return FALSE; |
2098 | } | |
41978308 | 2099 | |
6edf0760 NC |
2100 | /* If that succeeded, we know we'll be keeping all the |
2101 | relocs. */ | |
2102 | if (h->dynindx != -1) | |
2103 | goto keep; | |
2104 | } | |
41978308 | 2105 | |
6edf0760 | 2106 | eh->dyn_relocs = NULL; |
41978308 | 2107 | |
6edf0760 NC |
2108 | keep: ; |
2109 | } | |
41978308 | 2110 | |
6edf0760 NC |
2111 | /* Finally, allocate space. */ |
2112 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2113 | { | |
2114 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2115 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
6edf0760 | 2116 | } |
41978308 | 2117 | |
6edf0760 NC |
2118 | return TRUE; |
2119 | } | |
47b0e7ad | 2120 | |
6edf0760 | 2121 | /* Find any dynamic relocs that apply to read-only sections. */ |
41978308 | 2122 | |
6edf0760 | 2123 | static bfd_boolean |
47b0e7ad | 2124 | readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
6edf0760 NC |
2125 | { |
2126 | struct elf_m32r_link_hash_entry *eh; | |
2127 | struct elf_m32r_dyn_relocs *p; | |
2128 | ||
6edf0760 NC |
2129 | eh = (struct elf_m32r_link_hash_entry *) h; |
2130 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2131 | { | |
2132 | asection *s = p->sec->output_section; | |
252b5132 | 2133 | |
6edf0760 NC |
2134 | if (s != NULL && (s->flags & SEC_READONLY) != 0) |
2135 | { | |
2136 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
252b5132 | 2137 | |
6edf0760 | 2138 | info->flags |= DF_TEXTREL; |
252b5132 | 2139 | |
6edf0760 NC |
2140 | /* Not an error, just cut short the traversal. */ |
2141 | return FALSE; | |
2142 | } | |
252b5132 | 2143 | } |
6edf0760 NC |
2144 | return TRUE; |
2145 | } | |
252b5132 | 2146 | |
6edf0760 | 2147 | /* Set the sizes of the dynamic sections. */ |
41978308 | 2148 | |
6edf0760 | 2149 | static bfd_boolean |
47b0e7ad NC |
2150 | m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2151 | struct bfd_link_info *info) | |
6edf0760 NC |
2152 | { |
2153 | struct elf_m32r_link_hash_table *htab; | |
2154 | bfd *dynobj; | |
2155 | asection *s; | |
2156 | bfd_boolean relocs; | |
2157 | bfd *ibfd; | |
2158 | ||
2159 | #ifdef DEBUG_PIC | |
47b0e7ad | 2160 | printf ("m32r_elf_size_dynamic_sections()\n"); |
6edf0760 NC |
2161 | #endif |
2162 | ||
2163 | htab = m32r_elf_hash_table (info); | |
4dfe6ac6 NC |
2164 | if (htab == NULL) |
2165 | return FALSE; | |
2166 | ||
6edf0760 NC |
2167 | dynobj = htab->root.dynobj; |
2168 | BFD_ASSERT (dynobj != NULL); | |
2169 | ||
2170 | if (htab->root.dynamic_sections_created) | |
252b5132 | 2171 | { |
6edf0760 | 2172 | /* Set the contents of the .interp section to the interpreter. */ |
0e1862bb | 2173 | if (bfd_link_executable (info)) |
6edf0760 | 2174 | { |
3d4d4302 | 2175 | s = bfd_get_linker_section (dynobj, ".interp"); |
6edf0760 | 2176 | BFD_ASSERT (s != NULL); |
eea6121a | 2177 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
6edf0760 NC |
2178 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
2179 | } | |
252b5132 RH |
2180 | } |
2181 | ||
6edf0760 NC |
2182 | /* Set up .got offsets for local syms, and space for local dynamic |
2183 | relocs. */ | |
c72f2fb2 | 2184 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
6edf0760 NC |
2185 | { |
2186 | bfd_signed_vma *local_got; | |
2187 | bfd_signed_vma *end_local_got; | |
2188 | bfd_size_type locsymcount; | |
2189 | Elf_Internal_Shdr *symtab_hdr; | |
2190 | asection *srel; | |
252b5132 | 2191 | |
6edf0760 NC |
2192 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
2193 | continue; | |
252b5132 | 2194 | |
6edf0760 NC |
2195 | for (s = ibfd->sections; s != NULL; s = s->next) |
2196 | { | |
2197 | struct elf_m32r_dyn_relocs *p; | |
2198 | ||
2199 | for (p = ((struct elf_m32r_dyn_relocs *) | |
2200 | elf_section_data (s)->local_dynrel); | |
2201 | p != NULL; | |
2202 | p = p->next) | |
2203 | { | |
2204 | if (! bfd_is_abs_section (p->sec) | |
2205 | && bfd_is_abs_section (p->sec->output_section)) | |
2206 | { | |
2207 | /* Input section has been discarded, either because | |
2208 | it is a copy of a linkonce section or due to | |
2209 | linker script /DISCARD/, so we'll be discarding | |
2210 | the relocs too. */ | |
2211 | } | |
2212 | else if (p->count != 0) | |
2213 | { | |
2214 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2215 | srel->size += p->count * sizeof (Elf32_External_Rela); |
6edf0760 NC |
2216 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2217 | info->flags |= DF_TEXTREL; | |
2218 | } | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | local_got = elf_local_got_refcounts (ibfd); | |
2223 | if (!local_got) | |
2224 | continue; | |
2225 | ||
2226 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2227 | locsymcount = symtab_hdr->sh_info; | |
2228 | end_local_got = local_got + locsymcount; | |
2229 | s = htab->sgot; | |
2230 | srel = htab->srelgot; | |
2231 | for (; local_got < end_local_got; ++local_got) | |
2232 | { | |
2233 | if (*local_got > 0) | |
2234 | { | |
eea6121a AM |
2235 | *local_got = s->size; |
2236 | s->size += 4; | |
0e1862bb | 2237 | if (bfd_link_pic (info)) |
eea6121a | 2238 | srel->size += sizeof (Elf32_External_Rela); |
6edf0760 NC |
2239 | } |
2240 | else | |
2241 | *local_got = (bfd_vma) -1; | |
2242 | } | |
2243 | } | |
2244 | ||
2245 | /* Allocate global sym .plt and .got entries, and space for global | |
2246 | sym dynamic relocs. */ | |
47b0e7ad | 2247 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); |
6edf0760 NC |
2248 | |
2249 | /* We now have determined the sizes of the various dynamic sections. | |
2250 | Allocate memory for them. */ | |
2251 | relocs = FALSE; | |
2252 | for (s = dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 2253 | { |
6edf0760 NC |
2254 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2255 | continue; | |
252b5132 | 2256 | |
6edf0760 NC |
2257 | if (s == htab->splt |
2258 | || s == htab->sgot | |
c456f082 AM |
2259 | || s == htab->sgotplt |
2260 | || s == htab->sdynbss) | |
6edf0760 NC |
2261 | { |
2262 | /* Strip this section if we don't need it; see the | |
2263 | comment below. */ | |
2264 | } | |
0112cd26 | 2265 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
6edf0760 | 2266 | { |
eea6121a | 2267 | if (s->size != 0 && s != htab->srelplt) |
6edf0760 NC |
2268 | relocs = TRUE; |
2269 | ||
2270 | /* We use the reloc_count field as a counter if we need | |
2271 | to copy relocs into the output file. */ | |
2272 | s->reloc_count = 0; | |
2273 | } | |
252b5132 | 2274 | else |
47b0e7ad NC |
2275 | /* It's not one of our sections, so don't allocate space. */ |
2276 | continue; | |
6edf0760 | 2277 | |
eea6121a | 2278 | if (s->size == 0) |
6edf0760 NC |
2279 | { |
2280 | /* If we don't need this section, strip it from the | |
2281 | output file. This is mostly to handle .rela.bss and | |
2282 | .rela.plt. We must create both sections in | |
2283 | create_dynamic_sections, because they must be created | |
2284 | before the linker maps input sections to output | |
2285 | sections. The linker does that before | |
2286 | adjust_dynamic_symbol is called, and it is that | |
2287 | function which decides whether anything needs to go | |
2288 | into these sections. */ | |
8423293d | 2289 | s->flags |= SEC_EXCLUDE; |
6edf0760 NC |
2290 | continue; |
2291 | } | |
2292 | ||
c456f082 AM |
2293 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2294 | continue; | |
2295 | ||
6edf0760 NC |
2296 | /* Allocate memory for the section contents. We use bfd_zalloc |
2297 | here in case unused entries are not reclaimed before the | |
2298 | section's contents are written out. This should not happen, | |
2299 | but this way if it does, we get a R_M32R_NONE reloc instead | |
2300 | of garbage. */ | |
47b0e7ad | 2301 | s->contents = bfd_zalloc (dynobj, s->size); |
6edf0760 NC |
2302 | if (s->contents == NULL) |
2303 | return FALSE; | |
2304 | } | |
2305 | ||
2306 | if (htab->root.dynamic_sections_created) | |
2307 | { | |
2308 | /* Add some entries to the .dynamic section. We fill in the | |
2309 | values later, in m32r_elf_finish_dynamic_sections, but we | |
2310 | must add the entries now so that we get the correct size for | |
2311 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2312 | dynamic linker and used by the debugger. */ | |
2313 | #define add_dynamic_entry(TAG, VAL) \ | |
5a580b3a | 2314 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
6edf0760 | 2315 | |
0e1862bb | 2316 | if (bfd_link_executable (info)) |
252b5132 | 2317 | { |
6edf0760 NC |
2318 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
2319 | return FALSE; | |
252b5132 | 2320 | } |
6edf0760 | 2321 | |
eea6121a | 2322 | if (htab->splt->size != 0) |
6edf0760 NC |
2323 | { |
2324 | if (! add_dynamic_entry (DT_PLTGOT, 0) | |
2325 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2326 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2327 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2328 | return FALSE; | |
2329 | } | |
2330 | ||
2331 | if (relocs) | |
2332 | { | |
2333 | if (! add_dynamic_entry (DT_RELA, 0) | |
2334 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2335 | || ! add_dynamic_entry (DT_RELAENT, | |
2336 | sizeof (Elf32_External_Rela))) | |
2337 | return FALSE; | |
2338 | ||
2339 | /* If any dynamic relocs apply to a read-only section, | |
2340 | then we need a DT_TEXTREL entry. */ | |
2341 | if ((info->flags & DF_TEXTREL) == 0) | |
2342 | elf_link_hash_traverse (&htab->root, readonly_dynrelocs, | |
47b0e7ad | 2343 | info); |
6edf0760 NC |
2344 | |
2345 | if ((info->flags & DF_TEXTREL) != 0) | |
2346 | { | |
2347 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2348 | return FALSE; | |
2349 | } | |
2350 | } | |
252b5132 | 2351 | } |
6edf0760 NC |
2352 | #undef add_dynamic_entry |
2353 | ||
2354 | return TRUE; | |
252b5132 | 2355 | } |
47b0e7ad | 2356 | |
252b5132 RH |
2357 | /* Relocate an M32R/D ELF section. |
2358 | There is some attempt to make this function usable for many architectures, | |
f0fe0e16 | 2359 | both for RELA and REL type relocs, if only to serve as a learning tool. |
252b5132 RH |
2360 | |
2361 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
2362 | to handle the relocations for a section. | |
2363 | ||
2364 | The relocs are always passed as Rela structures; if the section | |
2365 | actually uses Rel structures, the r_addend field will always be | |
2366 | zero. | |
2367 | ||
2368 | This function is responsible for adjust the section contents as | |
2369 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 2370 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
2371 | necessary. |
2372 | ||
2373 | This function does not have to worry about setting the reloc | |
2374 | address or the reloc symbol index. | |
2375 | ||
2376 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
2377 | ||
2378 | LOCAL_SECTIONS is an array giving the section in the input file | |
2379 | corresponding to the st_shndx field of each local symbol. | |
2380 | ||
2381 | The global hash table entry for the global symbols can be found | |
2382 | via elf_sym_hashes (input_bfd). | |
2383 | ||
1049f94e | 2384 | When generating relocatable output, this function must handle |
252b5132 RH |
2385 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
2386 | going to be the section symbol corresponding to the output | |
2387 | section, which means that the addend must be adjusted | |
2388 | accordingly. */ | |
2389 | ||
b34976b6 | 2390 | static bfd_boolean |
47b0e7ad NC |
2391 | m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, |
2392 | struct bfd_link_info *info, | |
2393 | bfd *input_bfd, | |
2394 | asection *input_section, | |
2395 | bfd_byte *contents, | |
2396 | Elf_Internal_Rela *relocs, | |
2397 | Elf_Internal_Sym *local_syms, | |
2398 | asection **local_sections) | |
252b5132 RH |
2399 | { |
2400 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2401 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
2402 | Elf_Internal_Rela *rel, *relend; | |
2403 | /* Assume success. */ | |
b34976b6 | 2404 | bfd_boolean ret = TRUE; |
6edf0760 NC |
2405 | struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info); |
2406 | bfd *dynobj; | |
2407 | bfd_vma *local_got_offsets; | |
2408 | asection *sgot, *splt, *sreloc; | |
07515404 | 2409 | bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section); |
6edf0760 | 2410 | |
4dfe6ac6 NC |
2411 | if (htab == NULL) |
2412 | return FALSE; | |
2413 | ||
6edf0760 NC |
2414 | dynobj = htab->root.dynobj; |
2415 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
41978308 | 2416 | |
6edf0760 NC |
2417 | sgot = htab->sgot; |
2418 | splt = htab->splt; | |
2419 | sreloc = NULL; | |
b491616a | 2420 | |
252b5132 RH |
2421 | rel = relocs; |
2422 | relend = relocs + input_section->reloc_count; | |
2423 | for (; rel < relend; rel++) | |
2424 | { | |
2425 | int r_type; | |
2426 | reloc_howto_type *howto; | |
2427 | unsigned long r_symndx; | |
6edf0760 | 2428 | struct elf_link_hash_entry *h; |
252b5132 | 2429 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to |
6edf0760 NC |
2430 | ensure it's zero (we use REL relocs, not RELA). Therefore this |
2431 | should be assigning zero to `addend', but for clarity we use | |
2432 | `r_addend'. */ | |
252b5132 RH |
2433 | bfd_vma addend = rel->r_addend; |
2434 | bfd_vma offset = rel->r_offset; | |
ab96bf03 | 2435 | bfd_vma relocation; |
252b5132 RH |
2436 | Elf_Internal_Sym *sym; |
2437 | asection *sec; | |
2438 | const char *sym_name; | |
2439 | bfd_reloc_status_type r; | |
2440 | const char *errmsg = NULL; | |
6edf0760 | 2441 | bfd_boolean use_rel = FALSE; |
252b5132 RH |
2442 | |
2443 | h = NULL; | |
2444 | r_type = ELF32_R_TYPE (rel->r_info); | |
2445 | if (r_type < 0 || r_type >= (int) R_M32R_max) | |
2446 | { | |
d003868e AM |
2447 | (*_bfd_error_handler) (_("%B: unknown relocation type %d"), |
2448 | input_bfd, | |
252b5132 RH |
2449 | (int) r_type); |
2450 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2451 | ret = FALSE; |
252b5132 RH |
2452 | continue; |
2453 | } | |
2454 | ||
47b0e7ad | 2455 | if ( r_type == R_M32R_GNU_VTENTRY |
6edf0760 NC |
2456 | || r_type == R_M32R_GNU_VTINHERIT |
2457 | || r_type == R_M32R_NONE | |
2458 | || r_type == R_M32R_RELA_GNU_VTENTRY | |
2459 | || r_type == R_M32R_RELA_GNU_VTINHERIT) | |
252b5132 RH |
2460 | continue; |
2461 | ||
6edf0760 NC |
2462 | if (r_type <= R_M32R_GNU_VTENTRY) |
2463 | use_rel = TRUE; | |
2464 | ||
252b5132 RH |
2465 | howto = m32r_elf_howto_table + r_type; |
2466 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2467 | ||
ab96bf03 AM |
2468 | sym = NULL; |
2469 | sec = NULL; | |
2470 | h = NULL; | |
2471 | ||
2472 | if (r_symndx < symtab_hdr->sh_info) | |
2473 | { | |
2474 | /* Local symbol. */ | |
2475 | sym = local_syms + r_symndx; | |
2476 | sec = local_sections[r_symndx]; | |
2477 | sym_name = "<local symbol>"; | |
2478 | ||
2479 | if (!use_rel) | |
2480 | { | |
2481 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
2482 | addend = rel->r_addend; | |
2483 | } | |
2484 | else | |
2485 | { | |
2486 | relocation = (sec->output_section->vma | |
2487 | + sec->output_offset | |
2488 | + sym->st_value); | |
2489 | } | |
2490 | } | |
2491 | else | |
2492 | { | |
2493 | /* External symbol. */ | |
2494 | relocation = 0; | |
2495 | ||
2496 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
8a5da09b AM |
2497 | |
2498 | if (info->wrap_hash != NULL | |
2499 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
2500 | h = ((struct elf_link_hash_entry *) | |
2501 | unwrap_hash_lookup (info, input_bfd, &h->root)); | |
2502 | ||
ab96bf03 AM |
2503 | while (h->root.type == bfd_link_hash_indirect |
2504 | || h->root.type == bfd_link_hash_warning) | |
2505 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2506 | sym_name = h->root.root.string; | |
2507 | ||
2508 | if (h->root.type == bfd_link_hash_defined | |
2509 | || h->root.type == bfd_link_hash_defweak) | |
2510 | { | |
2511 | bfd_boolean dyn; | |
2512 | sec = h->root.u.def.section; | |
2513 | ||
2514 | dyn = htab->root.dynamic_sections_created; | |
2515 | sec = h->root.u.def.section; | |
2516 | if (r_type == R_M32R_GOTPC24 | |
2517 | || (r_type == R_M32R_GOTPC_HI_ULO | |
2518 | || r_type == R_M32R_GOTPC_HI_SLO | |
2519 | || r_type == R_M32R_GOTPC_LO) | |
2520 | || (r_type == R_M32R_26_PLTREL | |
2521 | && h->plt.offset != (bfd_vma) -1) | |
2522 | || ((r_type == R_M32R_GOT24 | |
2523 | || r_type == R_M32R_GOT16_HI_ULO | |
2524 | || r_type == R_M32R_GOT16_HI_SLO | |
2525 | || r_type == R_M32R_GOT16_LO) | |
2526 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
0e1862bb L |
2527 | bfd_link_pic (info), |
2528 | h) | |
2529 | && (! bfd_link_pic (info) | |
ab96bf03 AM |
2530 | || (! info->symbolic && h->dynindx != -1) |
2531 | || !h->def_regular)) | |
0e1862bb | 2532 | || (bfd_link_pic (info) |
ab96bf03 AM |
2533 | && ((! info->symbolic && h->dynindx != -1) |
2534 | || !h->def_regular) | |
2535 | && (((r_type == R_M32R_16_RELA | |
2536 | || r_type == R_M32R_32_RELA | |
2537 | || r_type == R_M32R_24_RELA | |
2538 | || r_type == R_M32R_HI16_ULO_RELA | |
2539 | || r_type == R_M32R_HI16_SLO_RELA | |
2540 | || r_type == R_M32R_LO16_RELA) | |
2541 | && !h->forced_local) | |
2542 | || r_type == R_M32R_REL32 | |
2543 | || r_type == R_M32R_10_PCREL_RELA | |
2544 | || r_type == R_M32R_18_PCREL_RELA | |
2545 | || r_type == R_M32R_26_PCREL_RELA) | |
2546 | && ((input_section->flags & SEC_ALLOC) != 0 | |
2547 | /* DWARF will emit R_M32R_16(24,32) relocations | |
2548 | in its sections against symbols defined | |
2549 | externally in shared libraries. We can't do | |
2550 | anything with them here. */ | |
2551 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
2552 | && h->def_dynamic)))) | |
2553 | { | |
2554 | /* In these cases, we don't need the relocation | |
2555 | value. We check specially because in some | |
2556 | obscure cases sec->output_section will be NULL. */ | |
2557 | } | |
2558 | else if (sec->output_section != NULL) | |
2559 | relocation = (h->root.u.def.value | |
2560 | + sec->output_section->vma | |
2561 | + sec->output_offset); | |
0e1862bb | 2562 | else if (!bfd_link_relocatable (info) |
1d5316ab AM |
2563 | && (_bfd_elf_section_offset (output_bfd, info, |
2564 | input_section, | |
2565 | rel->r_offset) | |
2566 | != (bfd_vma) -1)) | |
ab96bf03 AM |
2567 | { |
2568 | (*_bfd_error_handler) | |
2569 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), | |
2570 | input_bfd, | |
2571 | input_section, | |
2572 | (long) rel->r_offset, | |
2573 | howto->name, | |
2574 | h->root.root.string); | |
2575 | } | |
2576 | } | |
2577 | else if (h->root.type == bfd_link_hash_undefweak) | |
2578 | ; | |
2579 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
2580 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
2581 | ; | |
0e1862bb | 2582 | else if (!bfd_link_relocatable (info)) |
ab96bf03 AM |
2583 | { |
2584 | if (! ((*info->callbacks->undefined_symbol) | |
2585 | (info, h->root.root.string, input_bfd, | |
2586 | input_section, offset, | |
2587 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
2588 | || ELF_ST_VISIBILITY (h->other))))) | |
2589 | return FALSE; | |
2590 | } | |
2591 | } | |
2592 | ||
dbaa2011 | 2593 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2594 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2595 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 2596 | |
0e1862bb | 2597 | if (bfd_link_relocatable (info) && !use_rel) |
252b5132 | 2598 | { |
1049f94e | 2599 | /* This is a relocatable link. We don't have to change |
252b5132 RH |
2600 | anything, unless the reloc is against a section symbol, |
2601 | in which case we have to adjust according to where the | |
2602 | section symbol winds up in the output section. */ | |
ab96bf03 AM |
2603 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
2604 | rel->r_addend += sec->output_offset; | |
2605 | continue; | |
2606 | } | |
252b5132 | 2607 | |
0e1862bb | 2608 | if (bfd_link_relocatable (info) && use_rel) |
ab96bf03 AM |
2609 | { |
2610 | /* This is a relocatable link. We don't have to change | |
2611 | anything, unless the reloc is against a section symbol, | |
2612 | in which case we have to adjust according to where the | |
2613 | section symbol winds up in the output section. */ | |
2614 | if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
47b0e7ad | 2615 | continue; |
252b5132 | 2616 | |
ab96bf03 | 2617 | addend += sec->output_offset; |
252b5132 | 2618 | |
252b5132 RH |
2619 | /* If partial_inplace, we need to store any additional addend |
2620 | back in the section. */ | |
2621 | if (! howto->partial_inplace) | |
2622 | continue; | |
2623 | /* ??? Here is a nice place to call a special_function | |
2624 | like handler. */ | |
2625 | if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO) | |
2626 | r = _bfd_relocate_contents (howto, input_bfd, | |
2627 | addend, contents + offset); | |
2628 | else | |
2629 | { | |
2630 | Elf_Internal_Rela *lorel; | |
2631 | ||
2632 | /* We allow an arbitrary number of HI16 relocs before the | |
2633 | LO16 reloc. This permits gcc to emit the HI and LO relocs | |
2634 | itself. */ | |
2635 | for (lorel = rel + 1; | |
2636 | (lorel < relend | |
2637 | && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO | |
2638 | || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); | |
2639 | lorel++) | |
2640 | continue; | |
2641 | if (lorel < relend | |
2642 | && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) | |
2643 | { | |
2644 | m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, | |
2645 | contents, addend); | |
2646 | r = bfd_reloc_ok; | |
2647 | } | |
2648 | else | |
2649 | r = _bfd_relocate_contents (howto, input_bfd, | |
2650 | addend, contents + offset); | |
2651 | } | |
252b5132 RH |
2652 | } |
2653 | else | |
2654 | { | |
252b5132 | 2655 | /* Sanity check the address. */ |
07515404 | 2656 | if (offset > high_address) |
252b5132 RH |
2657 | { |
2658 | r = bfd_reloc_outofrange; | |
2659 | goto check_reloc; | |
2660 | } | |
2661 | ||
2662 | switch ((int) r_type) | |
2663 | { | |
097f809a NC |
2664 | case R_M32R_GOTOFF: |
2665 | /* Relocation is relative to the start of the global offset | |
2666 | table (for ld24 rx, #uimm24). eg access at label+addend | |
f12123c0 | 2667 | |
097f809a NC |
2668 | ld24 rx. #label@GOTOFF + addend |
2669 | sub rx, r12. */ | |
2670 | ||
2671 | BFD_ASSERT (sgot != NULL); | |
2672 | ||
2673 | relocation = -(relocation - sgot->output_section->vma); | |
2674 | rel->r_addend = -rel->r_addend; | |
2675 | break; | |
2676 | ||
2677 | case R_M32R_GOTOFF_HI_ULO: | |
2678 | case R_M32R_GOTOFF_HI_SLO: | |
2679 | case R_M32R_GOTOFF_LO: | |
2680 | BFD_ASSERT (sgot != NULL); | |
2681 | ||
2682 | relocation -= sgot->output_section->vma; | |
2683 | ||
2684 | if ((r_type == R_M32R_GOTOFF_HI_SLO) | |
2685 | && ((relocation + rel->r_addend) & 0x8000)) | |
2686 | rel->r_addend += 0x10000; | |
2687 | break; | |
2688 | ||
6edf0760 NC |
2689 | case R_M32R_GOTPC24: |
2690 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
2691 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ | |
2692 | */ | |
2693 | relocation = sgot->output_section->vma; | |
2694 | break; | |
2695 | ||
2696 | case R_M32R_GOTPC_HI_ULO: | |
2697 | case R_M32R_GOTPC_HI_SLO: | |
41978308 | 2698 | case R_M32R_GOTPC_LO: |
6edf0760 NC |
2699 | { |
2700 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
2701 | bl .+4 | |
2702 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) | |
2703 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
2704 | or | |
2705 | bl .+4 | |
2706 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) | |
2707 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
2708 | */ | |
2709 | relocation = sgot->output_section->vma; | |
2710 | relocation -= (input_section->output_section->vma | |
2711 | + input_section->output_offset | |
2712 | + rel->r_offset); | |
41978308 | 2713 | if ((r_type == R_M32R_GOTPC_HI_SLO) |
6edf0760 NC |
2714 | && ((relocation + rel->r_addend) & 0x8000)) |
2715 | rel->r_addend += 0x10000; | |
2716 | ||
2717 | break; | |
2718 | } | |
2719 | case R_M32R_GOT16_HI_ULO: | |
2720 | case R_M32R_GOT16_HI_SLO: | |
41978308 | 2721 | case R_M32R_GOT16_LO: |
6edf0760 NC |
2722 | /* Fall through. */ |
2723 | case R_M32R_GOT24: | |
2724 | /* Relocation is to the entry for this symbol in the global | |
2725 | offset table. */ | |
2726 | BFD_ASSERT (sgot != NULL); | |
41978308 | 2727 | |
6edf0760 NC |
2728 | if (h != NULL) |
2729 | { | |
2730 | bfd_boolean dyn; | |
2731 | bfd_vma off; | |
41978308 | 2732 | |
6edf0760 NC |
2733 | off = h->got.offset; |
2734 | BFD_ASSERT (off != (bfd_vma) -1); | |
2735 | ||
2736 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb L |
2737 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
2738 | bfd_link_pic (info), | |
2739 | h) | |
2740 | || (bfd_link_pic (info) | |
6edf0760 NC |
2741 | && (info->symbolic |
2742 | || h->dynindx == -1 | |
f5385ebf AM |
2743 | || h->forced_local) |
2744 | && h->def_regular)) | |
6edf0760 NC |
2745 | { |
2746 | /* This is actually a static link, or it is a | |
2747 | -Bsymbolic link and the symbol is defined | |
2748 | locally, or the symbol was forced to be local | |
2749 | because of a version file. We must initialize | |
2750 | this entry in the global offset table. Since the | |
2751 | offset must always be a multiple of 4, we use the | |
2752 | least significant bit to record whether we have | |
2753 | initialized it already. | |
41978308 | 2754 | |
6edf0760 NC |
2755 | When doing a dynamic link, we create a .rela.got |
2756 | relocation entry to initialize the value. This | |
2757 | is done in the finish_dynamic_symbol routine. */ | |
2758 | if ((off & 1) != 0) | |
2759 | off &= ~1; | |
2760 | else | |
2761 | { | |
2762 | bfd_put_32 (output_bfd, relocation, | |
2763 | sgot->contents + off); | |
2764 | h->got.offset |= 1; | |
2765 | } | |
2766 | } | |
41978308 | 2767 | |
6edf0760 NC |
2768 | relocation = sgot->output_offset + off; |
2769 | } | |
2770 | else | |
2771 | { | |
2772 | bfd_vma off; | |
2773 | bfd_byte *loc; | |
41978308 | 2774 | |
6edf0760 NC |
2775 | BFD_ASSERT (local_got_offsets != NULL |
2776 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
41978308 | 2777 | |
6edf0760 | 2778 | off = local_got_offsets[r_symndx]; |
41978308 | 2779 | |
6edf0760 NC |
2780 | /* The offset must always be a multiple of 4. We use |
2781 | the least significant bit to record whether we have | |
2782 | already processed this entry. */ | |
2783 | if ((off & 1) != 0) | |
2784 | off &= ~1; | |
2785 | else | |
2786 | { | |
2787 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
41978308 | 2788 | |
0e1862bb | 2789 | if (bfd_link_pic (info)) |
6edf0760 NC |
2790 | { |
2791 | asection *srelgot; | |
2792 | Elf_Internal_Rela outrel; | |
41978308 | 2793 | |
6edf0760 NC |
2794 | /* We need to generate a R_M32R_RELATIVE reloc |
2795 | for the dynamic linker. */ | |
3d4d4302 AM |
2796 | srelgot = bfd_get_linker_section (dynobj, |
2797 | ".rela.got"); | |
6edf0760 | 2798 | BFD_ASSERT (srelgot != NULL); |
41978308 | 2799 | |
6edf0760 NC |
2800 | outrel.r_offset = (sgot->output_section->vma |
2801 | + sgot->output_offset | |
2802 | + off); | |
2803 | outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); | |
2804 | outrel.r_addend = relocation; | |
2805 | loc = srelgot->contents; | |
47b0e7ad | 2806 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); |
6edf0760 NC |
2807 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); |
2808 | ++srelgot->reloc_count; | |
2809 | } | |
41978308 | 2810 | |
6edf0760 NC |
2811 | local_got_offsets[r_symndx] |= 1; |
2812 | } | |
41978308 | 2813 | |
6edf0760 NC |
2814 | relocation = sgot->output_offset + off; |
2815 | } | |
2816 | if ((r_type == R_M32R_GOT16_HI_SLO) | |
2817 | && ((relocation + rel->r_addend) & 0x8000)) | |
2818 | rel->r_addend += 0x10000; | |
2819 | ||
2820 | break; | |
41978308 | 2821 | |
6edf0760 NC |
2822 | case R_M32R_26_PLTREL: |
2823 | /* Relocation is to the entry for this symbol in the | |
2824 | procedure linkage table. */ | |
41978308 | 2825 | |
6edf0760 NC |
2826 | /* The native assembler will generate a 26_PLTREL reloc |
2827 | for a local symbol if you assemble a call from one | |
2828 | section to another when using -K pic. */ | |
2829 | if (h == NULL) | |
2830 | break; | |
2831 | ||
f5385ebf | 2832 | if (h->forced_local) |
6edf0760 NC |
2833 | break; |
2834 | ||
2835 | if (h->plt.offset == (bfd_vma) -1) | |
47b0e7ad NC |
2836 | /* We didn't make a PLT entry for this symbol. This |
2837 | happens when statically linking PIC code, or when | |
2838 | using -Bsymbolic. */ | |
2839 | break; | |
41978308 | 2840 | |
6edf0760 NC |
2841 | relocation = (splt->output_section->vma |
2842 | + splt->output_offset | |
2843 | + h->plt.offset); | |
2844 | break; | |
41978308 | 2845 | |
6edf0760 | 2846 | case R_M32R_HI16_SLO_RELA: |
47b0e7ad NC |
2847 | if ((relocation + rel->r_addend) & 0x8000) |
2848 | rel->r_addend += 0x10000; | |
6edf0760 | 2849 | /* Fall through. */ |
47b0e7ad | 2850 | |
6edf0760 NC |
2851 | case R_M32R_16_RELA: |
2852 | case R_M32R_24_RELA: | |
2853 | case R_M32R_32_RELA: | |
157e7bd1 | 2854 | case R_M32R_REL32: |
8ce757c4 | 2855 | case R_M32R_10_PCREL_RELA: |
6edf0760 NC |
2856 | case R_M32R_18_PCREL_RELA: |
2857 | case R_M32R_26_PCREL_RELA: | |
2858 | case R_M32R_HI16_ULO_RELA: | |
2859 | case R_M32R_LO16_RELA: | |
0e1862bb | 2860 | if (bfd_link_pic (info) |
cf35638d | 2861 | && r_symndx != STN_UNDEF |
6edf0760 | 2862 | && (input_section->flags & SEC_ALLOC) != 0 |
8ce757c4 NC |
2863 | && (( r_type != R_M32R_10_PCREL_RELA |
2864 | && r_type != R_M32R_18_PCREL_RELA | |
157e7bd1 NC |
2865 | && r_type != R_M32R_26_PCREL_RELA |
2866 | && r_type != R_M32R_REL32) | |
6edf0760 NC |
2867 | || (h != NULL |
2868 | && h->dynindx != -1 | |
2869 | && (! info->symbolic | |
f5385ebf | 2870 | || !h->def_regular)))) |
6edf0760 NC |
2871 | { |
2872 | Elf_Internal_Rela outrel; | |
2873 | bfd_boolean skip, relocate; | |
2874 | bfd_byte *loc; | |
41978308 | 2875 | |
6edf0760 NC |
2876 | /* When generating a shared object, these relocations |
2877 | are copied into the output file to be resolved at run | |
2878 | time. */ | |
6edf0760 NC |
2879 | if (sreloc == NULL) |
2880 | { | |
83bac4b0 NC |
2881 | sreloc = _bfd_elf_get_dynamic_reloc_section |
2882 | (input_bfd, input_section, /*rela?*/ TRUE); | |
2883 | if (sreloc == NULL) | |
2884 | return FALSE; | |
6edf0760 | 2885 | } |
41978308 | 2886 | |
6edf0760 NC |
2887 | skip = FALSE; |
2888 | relocate = FALSE; | |
41978308 | 2889 | |
6edf0760 NC |
2890 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, |
2891 | info, | |
2892 | input_section, | |
2893 | rel->r_offset); | |
2894 | if (outrel.r_offset == (bfd_vma) -1) | |
2895 | skip = TRUE; | |
2896 | else if (outrel.r_offset == (bfd_vma) -2) | |
47b0e7ad | 2897 | skip = relocate = TRUE; |
6edf0760 NC |
2898 | outrel.r_offset += (input_section->output_section->vma |
2899 | + input_section->output_offset); | |
41978308 | 2900 | |
6edf0760 NC |
2901 | if (skip) |
2902 | memset (&outrel, 0, sizeof outrel); | |
8ce757c4 NC |
2903 | else if ( r_type == R_M32R_10_PCREL_RELA |
2904 | || r_type == R_M32R_18_PCREL_RELA | |
157e7bd1 NC |
2905 | || r_type == R_M32R_26_PCREL_RELA |
2906 | || r_type == R_M32R_REL32) | |
6edf0760 NC |
2907 | { |
2908 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
2909 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2910 | outrel.r_addend = rel->r_addend; | |
2911 | } | |
2912 | else | |
2913 | { | |
2914 | /* h->dynindx may be -1 if this symbol was marked to | |
2915 | become local. */ | |
2916 | if (h == NULL | |
2917 | || ((info->symbolic || h->dynindx == -1) | |
f5385ebf | 2918 | && h->def_regular)) |
6edf0760 NC |
2919 | { |
2920 | relocate = TRUE; | |
2921 | outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); | |
2922 | outrel.r_addend = relocation + rel->r_addend; | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | BFD_ASSERT (h->dynindx != -1); | |
2927 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2928 | outrel.r_addend = relocation + rel->r_addend; | |
2929 | } | |
2930 | } | |
2931 | ||
2932 | loc = sreloc->contents; | |
47b0e7ad | 2933 | loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); |
6edf0760 NC |
2934 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); |
2935 | ++sreloc->reloc_count; | |
2936 | ||
2937 | /* If this reloc is against an external symbol, we do | |
2938 | not want to fiddle with the addend. Otherwise, we | |
2939 | need to include the symbol value so that it becomes | |
2940 | an addend for the dynamic reloc. */ | |
2941 | if (! relocate) | |
2942 | continue; | |
8ce757c4 | 2943 | break; |
6edf0760 | 2944 | } |
8ce757c4 NC |
2945 | else if (r_type != R_M32R_10_PCREL_RELA) |
2946 | break; | |
2947 | /* Fall through. */ | |
41978308 | 2948 | |
252b5132 RH |
2949 | case (int) R_M32R_10_PCREL : |
2950 | r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section, | |
2951 | contents, offset, | |
2952 | sec, relocation, addend); | |
6edf0760 | 2953 | goto check_reloc; |
252b5132 RH |
2954 | |
2955 | case (int) R_M32R_HI16_SLO : | |
2956 | case (int) R_M32R_HI16_ULO : | |
2957 | { | |
2958 | Elf_Internal_Rela *lorel; | |
2959 | ||
2960 | /* We allow an arbitrary number of HI16 relocs before the | |
2961 | LO16 reloc. This permits gcc to emit the HI and LO relocs | |
2962 | itself. */ | |
2963 | for (lorel = rel + 1; | |
2964 | (lorel < relend | |
2965 | && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO | |
2966 | || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); | |
2967 | lorel++) | |
2968 | continue; | |
2969 | if (lorel < relend | |
2970 | && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) | |
2971 | { | |
2972 | m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, | |
2973 | contents, relocation + addend); | |
2974 | r = bfd_reloc_ok; | |
2975 | } | |
2976 | else | |
2977 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2978 | contents, offset, | |
2979 | relocation, addend); | |
2980 | } | |
6edf0760 NC |
2981 | |
2982 | goto check_reloc; | |
252b5132 | 2983 | |
af705ba8 | 2984 | case (int) R_M32R_SDA16_RELA: |
252b5132 RH |
2985 | case (int) R_M32R_SDA16 : |
2986 | { | |
2987 | const char *name; | |
2988 | ||
2989 | BFD_ASSERT (sec != NULL); | |
a0f49396 | 2990 | name = bfd_get_section_name (sec->owner, sec); |
252b5132 | 2991 | |
47b0e7ad | 2992 | if ( strcmp (name, ".sdata") == 0 |
252b5132 RH |
2993 | || strcmp (name, ".sbss") == 0 |
2994 | || strcmp (name, ".scommon") == 0) | |
2995 | { | |
2996 | bfd_vma sda_base; | |
2997 | bfd *out_bfd = sec->output_section->owner; | |
2998 | ||
2999 | r = m32r_elf_final_sda_base (out_bfd, info, | |
3000 | &errmsg, | |
3001 | &sda_base); | |
3002 | if (r != bfd_reloc_ok) | |
3003 | { | |
b34976b6 | 3004 | ret = FALSE; |
252b5132 RH |
3005 | goto check_reloc; |
3006 | } | |
3007 | ||
3008 | /* At this point `relocation' contains the object's | |
3009 | address. */ | |
3010 | relocation -= sda_base; | |
3011 | /* Now it contains the offset from _SDA_BASE_. */ | |
3012 | } | |
3013 | else | |
3014 | { | |
8f615d07 | 3015 | (*_bfd_error_handler) |
d003868e AM |
3016 | (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"), |
3017 | input_bfd, | |
3018 | sec, | |
8f615d07 | 3019 | sym_name, |
d003868e | 3020 | m32r_elf_howto_table[(int) r_type].name); |
252b5132 | 3021 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
b34976b6 | 3022 | ret = FALSE; |
252b5132 RH |
3023 | continue; |
3024 | } | |
3025 | } | |
47b0e7ad | 3026 | /* Fall through. */ |
6edf0760 NC |
3027 | |
3028 | default : /* OLD_M32R_RELOC */ | |
252b5132 | 3029 | |
252b5132 RH |
3030 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3031 | contents, offset, | |
3032 | relocation, addend); | |
6edf0760 | 3033 | goto check_reloc; |
252b5132 | 3034 | } |
6edf0760 NC |
3035 | |
3036 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3037 | contents, rel->r_offset, | |
3038 | relocation, rel->r_addend); | |
3039 | ||
252b5132 RH |
3040 | } |
3041 | ||
3042 | check_reloc: | |
3043 | ||
3044 | if (r != bfd_reloc_ok) | |
3045 | { | |
3046 | /* FIXME: This should be generic enough to go in a utility. */ | |
3047 | const char *name; | |
3048 | ||
3049 | if (h != NULL) | |
3050 | name = h->root.root.string; | |
3051 | else | |
3052 | { | |
3053 | name = (bfd_elf_string_from_elf_section | |
3054 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
3055 | if (name == NULL || *name == '\0') | |
3056 | name = bfd_section_name (input_bfd, sec); | |
3057 | } | |
3058 | ||
3059 | if (errmsg != NULL) | |
3060 | goto common_error; | |
3061 | ||
3062 | switch (r) | |
3063 | { | |
3064 | case bfd_reloc_overflow: | |
3065 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
3066 | (info, (h ? &h->root : NULL), name, howto->name, |
3067 | (bfd_vma) 0, input_bfd, input_section, offset))) | |
b34976b6 | 3068 | return FALSE; |
252b5132 RH |
3069 | break; |
3070 | ||
3071 | case bfd_reloc_undefined: | |
3072 | if (! ((*info->callbacks->undefined_symbol) | |
3073 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
3074 | offset, TRUE))) |
3075 | return FALSE; | |
252b5132 RH |
3076 | break; |
3077 | ||
3078 | case bfd_reloc_outofrange: | |
3079 | errmsg = _("internal error: out of range error"); | |
3080 | goto common_error; | |
3081 | ||
3082 | case bfd_reloc_notsupported: | |
3083 | errmsg = _("internal error: unsupported relocation error"); | |
3084 | goto common_error; | |
3085 | ||
3086 | case bfd_reloc_dangerous: | |
3087 | errmsg = _("internal error: dangerous error"); | |
3088 | goto common_error; | |
3089 | ||
3090 | default: | |
3091 | errmsg = _("internal error: unknown error"); | |
3092 | /* fall through */ | |
3093 | ||
3094 | common_error: | |
3095 | if (!((*info->callbacks->warning) | |
3096 | (info, errmsg, name, input_bfd, input_section, | |
3097 | offset))) | |
b34976b6 | 3098 | return FALSE; |
252b5132 RH |
3099 | break; |
3100 | } | |
3101 | } | |
3102 | } | |
3103 | ||
3104 | return ret; | |
3105 | } | |
6edf0760 NC |
3106 | |
3107 | /* Finish up dynamic symbol handling. We set the contents of various | |
3108 | dynamic sections here. */ | |
47b0e7ad | 3109 | |
6edf0760 | 3110 | static bfd_boolean |
47b0e7ad NC |
3111 | m32r_elf_finish_dynamic_symbol (bfd *output_bfd, |
3112 | struct bfd_link_info *info, | |
3113 | struct elf_link_hash_entry *h, | |
3114 | Elf_Internal_Sym *sym) | |
6edf0760 NC |
3115 | { |
3116 | struct elf_m32r_link_hash_table *htab; | |
6edf0760 | 3117 | bfd_byte *loc; |
41978308 | 3118 | |
6edf0760 | 3119 | #ifdef DEBUG_PIC |
47b0e7ad | 3120 | printf ("m32r_elf_finish_dynamic_symbol()\n"); |
6edf0760 | 3121 | #endif |
41978308 | 3122 | |
6edf0760 | 3123 | htab = m32r_elf_hash_table (info); |
4dfe6ac6 NC |
3124 | if (htab == NULL) |
3125 | return FALSE; | |
3126 | ||
6edf0760 NC |
3127 | if (h->plt.offset != (bfd_vma) -1) |
3128 | { | |
3129 | asection *splt; | |
3130 | asection *sgot; | |
3131 | asection *srela; | |
3132 | ||
3133 | bfd_vma plt_index; | |
3134 | bfd_vma got_offset; | |
3135 | Elf_Internal_Rela rela; | |
41978308 | 3136 | |
6edf0760 NC |
3137 | /* This symbol has an entry in the procedure linkage table. Set |
3138 | it up. */ | |
41978308 | 3139 | |
6edf0760 | 3140 | BFD_ASSERT (h->dynindx != -1); |
41978308 | 3141 | |
6edf0760 NC |
3142 | splt = htab->splt; |
3143 | sgot = htab->sgotplt; | |
3144 | srela = htab->srelplt; | |
3145 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); | |
3146 | ||
3147 | /* Get the index in the procedure linkage table which | |
3148 | corresponds to this symbol. This is the index of this symbol | |
3149 | in all the symbols for which we are making plt entries. The | |
3150 | first entry in the procedure linkage table is reserved. */ | |
3151 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
3152 | ||
3153 | /* Get the offset into the .got table of the entry that | |
3154 | corresponds to this function. Each .got entry is 4 bytes. | |
3155 | The first three are reserved. */ | |
3156 | got_offset = (plt_index + 3) * 4; | |
3157 | ||
3158 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 3159 | if (! bfd_link_pic (info)) |
6edf0760 NC |
3160 | { |
3161 | bfd_put_32 (output_bfd, | |
3162 | (PLT_ENTRY_WORD0b | |
3163 | + (((sgot->output_section->vma | |
3164 | + sgot->output_offset | |
3165 | + got_offset) >> 16) & 0xffff)), | |
3166 | splt->contents + h->plt.offset); | |
3167 | bfd_put_32 (output_bfd, | |
3168 | (PLT_ENTRY_WORD1b | |
3169 | + ((sgot->output_section->vma | |
3170 | + sgot->output_offset | |
3171 | + got_offset) & 0xffff)), | |
3172 | splt->contents + h->plt.offset + 4); | |
3173 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, | |
3174 | splt->contents + h->plt.offset + 8); | |
3175 | bfd_put_32 (output_bfd, | |
3176 | (PLT_ENTRY_WORD3 | |
3177 | + plt_index * sizeof (Elf32_External_Rela)), | |
3178 | splt->contents + h->plt.offset + 12); | |
3179 | bfd_put_32 (output_bfd, | |
3180 | (PLT_ENTRY_WORD4 | |
3181 | + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), | |
3182 | splt->contents + h->plt.offset + 16); | |
3183 | } | |
3184 | else | |
3185 | { | |
3186 | bfd_put_32 (output_bfd, | |
3187 | PLT_ENTRY_WORD0 + got_offset, | |
3188 | splt->contents + h->plt.offset); | |
3189 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD1, | |
3190 | splt->contents + h->plt.offset + 4); | |
3191 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, | |
3192 | splt->contents + h->plt.offset + 8); | |
3193 | bfd_put_32 (output_bfd, | |
3194 | (PLT_ENTRY_WORD3 | |
3195 | + plt_index * sizeof (Elf32_External_Rela)), | |
3196 | splt->contents + h->plt.offset + 12); | |
3197 | bfd_put_32 (output_bfd, | |
3198 | (PLT_ENTRY_WORD4 | |
3199 | + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), | |
3200 | splt->contents + h->plt.offset + 16); | |
3201 | } | |
41978308 | 3202 | |
6edf0760 NC |
3203 | /* Fill in the entry in the global offset table. */ |
3204 | bfd_put_32 (output_bfd, | |
3205 | (splt->output_section->vma | |
3206 | + splt->output_offset | |
3207 | + h->plt.offset | |
3208 | + 12), /* same offset */ | |
3209 | sgot->contents + got_offset); | |
3210 | ||
3211 | /* Fill in the entry in the .rela.plt section. */ | |
3212 | rela.r_offset = (sgot->output_section->vma | |
3213 | + sgot->output_offset | |
3214 | + got_offset); | |
3215 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT); | |
3216 | rela.r_addend = 0; | |
3217 | loc = srela->contents; | |
47b0e7ad | 3218 | loc += plt_index * sizeof (Elf32_External_Rela); |
6edf0760 | 3219 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
41978308 | 3220 | |
f5385ebf | 3221 | if (!h->def_regular) |
6edf0760 NC |
3222 | { |
3223 | /* Mark the symbol as undefined, rather than as defined in | |
3224 | the .plt section. Leave the value alone. */ | |
3225 | sym->st_shndx = SHN_UNDEF; | |
3226 | } | |
3227 | } | |
3228 | ||
3229 | if (h->got.offset != (bfd_vma) -1) | |
3230 | { | |
3231 | asection *sgot; | |
3232 | asection *srela; | |
3233 | Elf_Internal_Rela rela; | |
41978308 | 3234 | |
6edf0760 NC |
3235 | /* This symbol has an entry in the global offset table. Set it |
3236 | up. */ | |
41978308 | 3237 | |
6edf0760 NC |
3238 | sgot = htab->sgot; |
3239 | srela = htab->srelgot; | |
3240 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
41978308 | 3241 | |
6edf0760 NC |
3242 | rela.r_offset = (sgot->output_section->vma |
3243 | + sgot->output_offset | |
3244 | + (h->got.offset &~ 1)); | |
41978308 | 3245 | |
6edf0760 NC |
3246 | /* If this is a -Bsymbolic link, and the symbol is defined |
3247 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3248 | the symbol was forced to be local because of a version file. | |
3249 | The entry in the global offset table will already have been | |
3250 | initialized in the relocate_section function. */ | |
0e1862bb | 3251 | if (bfd_link_pic (info) |
6edf0760 NC |
3252 | && (info->symbolic |
3253 | || h->dynindx == -1 | |
f5385ebf AM |
3254 | || h->forced_local) |
3255 | && h->def_regular) | |
6edf0760 NC |
3256 | { |
3257 | rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); | |
3258 | rela.r_addend = (h->root.u.def.value | |
3259 | + h->root.u.def.section->output_section->vma | |
3260 | + h->root.u.def.section->output_offset); | |
3261 | } | |
3262 | else | |
3263 | { | |
47b0e7ad | 3264 | BFD_ASSERT ((h->got.offset & 1) == 0); |
6edf0760 NC |
3265 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
3266 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT); | |
3267 | rela.r_addend = 0; | |
3268 | } | |
41978308 | 3269 | |
6edf0760 | 3270 | loc = srela->contents; |
47b0e7ad | 3271 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); |
6edf0760 NC |
3272 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
3273 | ++srela->reloc_count; | |
3274 | } | |
41978308 | 3275 | |
f5385ebf | 3276 | if (h->needs_copy) |
6edf0760 NC |
3277 | { |
3278 | asection *s; | |
3279 | Elf_Internal_Rela rela; | |
41978308 | 3280 | |
6edf0760 | 3281 | /* This symbols needs a copy reloc. Set it up. */ |
41978308 | 3282 | |
6edf0760 NC |
3283 | BFD_ASSERT (h->dynindx != -1 |
3284 | && (h->root.type == bfd_link_hash_defined | |
3285 | || h->root.type == bfd_link_hash_defweak)); | |
41978308 | 3286 | |
3d4d4302 | 3287 | s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss"); |
6edf0760 | 3288 | BFD_ASSERT (s != NULL); |
41978308 | 3289 | |
6edf0760 NC |
3290 | rela.r_offset = (h->root.u.def.value |
3291 | + h->root.u.def.section->output_section->vma | |
3292 | + h->root.u.def.section->output_offset); | |
3293 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY); | |
3294 | rela.r_addend = 0; | |
3295 | loc = s->contents; | |
47b0e7ad | 3296 | loc += s->reloc_count * sizeof (Elf32_External_Rela); |
6edf0760 NC |
3297 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
3298 | ++s->reloc_count; | |
3299 | } | |
41978308 | 3300 | |
6edf0760 | 3301 | /* Mark some specially defined symbols as absolute. */ |
9637f6ef | 3302 | if (h == htab->root.hdynamic || h == htab->root.hgot) |
6edf0760 | 3303 | sym->st_shndx = SHN_ABS; |
41978308 | 3304 | |
6edf0760 NC |
3305 | return TRUE; |
3306 | } | |
3307 | ||
3308 | ||
3309 | /* Finish up the dynamic sections. */ | |
41978308 | 3310 | |
6edf0760 | 3311 | static bfd_boolean |
47b0e7ad NC |
3312 | m32r_elf_finish_dynamic_sections (bfd *output_bfd, |
3313 | struct bfd_link_info *info) | |
6edf0760 NC |
3314 | { |
3315 | struct elf_m32r_link_hash_table *htab; | |
3316 | bfd *dynobj; | |
3317 | asection *sdyn; | |
3318 | asection *sgot; | |
3319 | ||
3320 | #ifdef DEBUG_PIC | |
47b0e7ad | 3321 | printf ("m32r_elf_finish_dynamic_sections()\n"); |
6edf0760 | 3322 | #endif |
41978308 | 3323 | |
6edf0760 | 3324 | htab = m32r_elf_hash_table (info); |
4dfe6ac6 NC |
3325 | if (htab == NULL) |
3326 | return FALSE; | |
3327 | ||
6edf0760 NC |
3328 | dynobj = htab->root.dynobj; |
3329 | ||
3330 | sgot = htab->sgotplt; | |
3d4d4302 | 3331 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
41978308 | 3332 | |
6edf0760 NC |
3333 | if (htab->root.dynamic_sections_created) |
3334 | { | |
3335 | asection *splt; | |
3336 | Elf32_External_Dyn *dyncon, *dynconend; | |
41978308 | 3337 | |
6edf0760 | 3338 | BFD_ASSERT (sgot != NULL && sdyn != NULL); |
41978308 | 3339 | |
6edf0760 | 3340 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
eea6121a | 3341 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
6edf0760 NC |
3342 | |
3343 | for (; dyncon < dynconend; dyncon++) | |
3344 | { | |
3345 | Elf_Internal_Dyn dyn; | |
6edf0760 | 3346 | asection *s; |
41978308 | 3347 | |
6edf0760 | 3348 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
41978308 | 3349 | |
6edf0760 NC |
3350 | switch (dyn.d_tag) |
3351 | { | |
3352 | default: | |
3353 | break; | |
3354 | ||
3355 | case DT_PLTGOT: | |
41978308 | 3356 | s = htab->sgot->output_section; |
6edf0760 NC |
3357 | goto get_vma; |
3358 | case DT_JMPREL: | |
6edf0760 NC |
3359 | s = htab->srelplt->output_section; |
3360 | get_vma: | |
3361 | BFD_ASSERT (s != NULL); | |
3362 | dyn.d_un.d_ptr = s->vma; | |
3363 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3364 | break; | |
3365 | ||
3366 | case DT_PLTRELSZ: | |
3367 | s = htab->srelplt->output_section; | |
3368 | BFD_ASSERT (s != NULL); | |
eea6121a | 3369 | dyn.d_un.d_val = s->size; |
6edf0760 NC |
3370 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
3371 | break; | |
3372 | ||
3373 | case DT_RELASZ: | |
3374 | /* My reading of the SVR4 ABI indicates that the | |
3375 | procedure linkage table relocs (DT_JMPREL) should be | |
3376 | included in the overall relocs (DT_RELA). This is | |
3377 | what Solaris does. However, UnixWare can not handle | |
3378 | that case. Therefore, we override the DT_RELASZ entry | |
3379 | here to make it not include the JMPREL relocs. Since | |
3380 | the linker script arranges for .rela.plt to follow all | |
3381 | other relocation sections, we don't have to worry | |
3382 | about changing the DT_RELA entry. */ | |
3383 | if (htab->srelplt != NULL) | |
3384 | { | |
3385 | s = htab->srelplt->output_section; | |
eea6121a | 3386 | dyn.d_un.d_val -= s->size; |
6edf0760 NC |
3387 | } |
3388 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3389 | break; | |
3390 | } | |
3391 | } | |
41978308 | 3392 | |
6edf0760 NC |
3393 | /* Fill in the first entry in the procedure linkage table. */ |
3394 | splt = htab->splt; | |
eea6121a | 3395 | if (splt && splt->size > 0) |
6edf0760 | 3396 | { |
0e1862bb | 3397 | if (bfd_link_pic (info)) |
6edf0760 NC |
3398 | { |
3399 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents); | |
3400 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4); | |
3401 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8); | |
3402 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12); | |
3403 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16); | |
3404 | } | |
3405 | else | |
3406 | { | |
3407 | unsigned long addr; | |
3408 | /* addr = .got + 4 */ | |
3409 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
3410 | bfd_put_32 (output_bfd, | |
3411 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), | |
3412 | splt->contents); | |
41978308 | 3413 | bfd_put_32 (output_bfd, |
6edf0760 NC |
3414 | PLT0_ENTRY_WORD1 | (addr & 0xffff), |
3415 | splt->contents + 4); | |
3416 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); | |
3417 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
3418 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
3419 | } | |
3420 | ||
3421 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
3422 | PLT_ENTRY_SIZE; | |
3423 | } | |
3424 | } | |
3425 | ||
3426 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 3427 | if (sgot && sgot->size > 0) |
6edf0760 NC |
3428 | { |
3429 | if (sdyn == NULL) | |
3430 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
3431 | else | |
3432 | bfd_put_32 (output_bfd, | |
3433 | sdyn->output_section->vma + sdyn->output_offset, | |
3434 | sgot->contents); | |
3435 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
3436 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
3437 | ||
3438 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
3439 | } | |
41978308 | 3440 | |
6edf0760 NC |
3441 | return TRUE; |
3442 | } | |
3443 | ||
252b5132 RH |
3444 | \f |
3445 | /* Set the right machine number. */ | |
47b0e7ad | 3446 | |
b34976b6 | 3447 | static bfd_boolean |
47b0e7ad | 3448 | m32r_elf_object_p (bfd *abfd) |
252b5132 RH |
3449 | { |
3450 | switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) | |
3451 | { | |
3452 | default: | |
3453 | case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break; | |
e916b64e | 3454 | case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break; |
88845958 | 3455 | case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break; |
252b5132 | 3456 | } |
b34976b6 | 3457 | return TRUE; |
252b5132 RH |
3458 | } |
3459 | ||
3460 | /* Store the machine number in the flags field. */ | |
47b0e7ad | 3461 | |
252b5132 | 3462 | static void |
47b0e7ad NC |
3463 | m32r_elf_final_write_processing (bfd *abfd, |
3464 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
252b5132 RH |
3465 | { |
3466 | unsigned long val; | |
3467 | ||
3468 | switch (bfd_get_mach (abfd)) | |
3469 | { | |
3470 | default: | |
3471 | case bfd_mach_m32r: val = E_M32R_ARCH; break; | |
e916b64e | 3472 | case bfd_mach_m32rx: val = E_M32RX_ARCH; break; |
88845958 | 3473 | case bfd_mach_m32r2: val = E_M32R2_ARCH; break; |
252b5132 RH |
3474 | } |
3475 | ||
3476 | elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH; | |
3477 | elf_elfheader (abfd)->e_flags |= val; | |
3478 | } | |
3479 | ||
c3668558 | 3480 | /* Function to keep M32R specific file flags. */ |
47b0e7ad | 3481 | |
b34976b6 | 3482 | static bfd_boolean |
47b0e7ad | 3483 | m32r_elf_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
3484 | { |
3485 | BFD_ASSERT (!elf_flags_init (abfd) | |
3486 | || elf_elfheader (abfd)->e_flags == flags); | |
3487 | ||
3488 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
3489 | elf_flags_init (abfd) = TRUE; |
3490 | return TRUE; | |
252b5132 RH |
3491 | } |
3492 | ||
252b5132 RH |
3493 | /* Merge backend specific data from an object file to the output |
3494 | object file when linking. */ | |
47b0e7ad | 3495 | |
b34976b6 | 3496 | static bfd_boolean |
47b0e7ad | 3497 | m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
3498 | { |
3499 | flagword out_flags; | |
3500 | flagword in_flags; | |
3501 | ||
3502 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3503 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3504 | return TRUE; |
252b5132 RH |
3505 | |
3506 | in_flags = elf_elfheader (ibfd)->e_flags; | |
3507 | out_flags = elf_elfheader (obfd)->e_flags; | |
3508 | ||
3509 | if (! elf_flags_init (obfd)) | |
3510 | { | |
3511 | /* If the input is the default architecture then do not | |
3512 | bother setting the flags for the output architecture, | |
3513 | instead allow future merges to do this. If no future | |
3514 | merges ever set these flags then they will retain their | |
3515 | unitialised values, which surprise surprise, correspond | |
3516 | to the default values. */ | |
3517 | if (bfd_get_arch_info (ibfd)->the_default) | |
b34976b6 | 3518 | return TRUE; |
c3668558 | 3519 | |
b34976b6 | 3520 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
3521 | elf_elfheader (obfd)->e_flags = in_flags; |
3522 | ||
3523 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
3524 | && bfd_get_arch_info (obfd)->the_default) | |
47b0e7ad NC |
3525 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), |
3526 | bfd_get_mach (ibfd)); | |
252b5132 | 3527 | |
b34976b6 | 3528 | return TRUE; |
252b5132 RH |
3529 | } |
3530 | ||
3531 | /* Check flag compatibility. */ | |
3532 | if (in_flags == out_flags) | |
b34976b6 | 3533 | return TRUE; |
252b5132 RH |
3534 | |
3535 | if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH)) | |
3536 | { | |
88845958 NC |
3537 | if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH) |
3538 | || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH) | |
3539 | || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH)) | |
252b5132 | 3540 | { |
8f615d07 | 3541 | (*_bfd_error_handler) |
d003868e | 3542 | (_("%B: Instruction set mismatch with previous modules"), ibfd); |
252b5132 RH |
3543 | |
3544 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3545 | return FALSE; |
252b5132 RH |
3546 | } |
3547 | } | |
3548 | ||
b34976b6 | 3549 | return TRUE; |
252b5132 RH |
3550 | } |
3551 | ||
47b0e7ad NC |
3552 | /* Display the flags field. */ |
3553 | ||
b34976b6 | 3554 | static bfd_boolean |
47b0e7ad | 3555 | m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr) |
252b5132 RH |
3556 | { |
3557 | FILE * file = (FILE *) ptr; | |
c3668558 | 3558 | |
f12123c0 | 3559 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
c3668558 | 3560 | |
252b5132 | 3561 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
c3668558 | 3562 | |
252b5132 | 3563 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); |
c3668558 | 3564 | |
252b5132 RH |
3565 | switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) |
3566 | { | |
3567 | default: | |
3568 | case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break; | |
e916b64e | 3569 | case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break; |
88845958 | 3570 | case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break; |
252b5132 | 3571 | } |
c3668558 | 3572 | |
252b5132 | 3573 | fputc ('\n', file); |
c3668558 | 3574 | |
b34976b6 | 3575 | return TRUE; |
252b5132 RH |
3576 | } |
3577 | ||
47b0e7ad NC |
3578 | static asection * |
3579 | m32r_elf_gc_mark_hook (asection *sec, | |
07adf181 | 3580 | struct bfd_link_info *info, |
47b0e7ad NC |
3581 | Elf_Internal_Rela *rel, |
3582 | struct elf_link_hash_entry *h, | |
3583 | Elf_Internal_Sym *sym) | |
252b5132 RH |
3584 | { |
3585 | if (h != NULL) | |
07adf181 | 3586 | switch (ELF32_R_TYPE (rel->r_info)) |
252b5132 RH |
3587 | { |
3588 | case R_M32R_GNU_VTINHERIT: | |
3589 | case R_M32R_GNU_VTENTRY: | |
6edf0760 NC |
3590 | case R_M32R_RELA_GNU_VTINHERIT: |
3591 | case R_M32R_RELA_GNU_VTENTRY: | |
07adf181 AM |
3592 | return NULL; |
3593 | } | |
1e2f5b6e | 3594 | |
07adf181 | 3595 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 RH |
3596 | } |
3597 | ||
b34976b6 | 3598 | static bfd_boolean |
47b0e7ad NC |
3599 | m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, |
3600 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3601 | asection *sec ATTRIBUTE_UNUSED, | |
3602 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) | |
252b5132 | 3603 | { |
6edf0760 NC |
3604 | /* Update the got entry reference counts for the section being removed. */ |
3605 | Elf_Internal_Shdr *symtab_hdr; | |
3606 | struct elf_link_hash_entry **sym_hashes; | |
3607 | bfd_signed_vma *local_got_refcounts; | |
3608 | const Elf_Internal_Rela *rel, *relend; | |
6edf0760 | 3609 | |
0e1862bb | 3610 | if (bfd_link_relocatable (info)) |
7dda2462 TG |
3611 | return TRUE; |
3612 | ||
6edf0760 NC |
3613 | elf_section_data (sec)->local_dynrel = NULL; |
3614 | ||
3615 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
3616 | sym_hashes = elf_sym_hashes (abfd); | |
3617 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
3618 | ||
3619 | relend = relocs + sec->reloc_count; | |
3620 | for (rel = relocs; rel < relend; rel++) | |
3eb128b2 AM |
3621 | { |
3622 | unsigned long r_symndx; | |
3623 | struct elf_link_hash_entry *h = NULL; | |
6edf0760 | 3624 | |
3eb128b2 AM |
3625 | r_symndx = ELF32_R_SYM (rel->r_info); |
3626 | if (r_symndx >= symtab_hdr->sh_info) | |
3627 | { | |
3628 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3629 | while (h->root.type == bfd_link_hash_indirect | |
3630 | || h->root.type == bfd_link_hash_warning) | |
3631 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3632 | } | |
6edf0760 | 3633 | |
3eb128b2 AM |
3634 | switch (ELF32_R_TYPE (rel->r_info)) |
3635 | { | |
3636 | case R_M32R_GOT16_HI_ULO: | |
3637 | case R_M32R_GOT16_HI_SLO: | |
3638 | case R_M32R_GOT16_LO: | |
3639 | case R_M32R_GOTOFF: | |
3640 | case R_M32R_GOTOFF_HI_ULO: | |
3641 | case R_M32R_GOTOFF_HI_SLO: | |
3642 | case R_M32R_GOTOFF_LO: | |
3643 | case R_M32R_GOT24: | |
3644 | case R_M32R_GOTPC_HI_ULO: | |
3645 | case R_M32R_GOTPC_HI_SLO: | |
3646 | case R_M32R_GOTPC_LO: | |
3647 | case R_M32R_GOTPC24: | |
3648 | if (h != NULL) | |
3649 | { | |
3650 | if (h->got.refcount > 0) | |
3651 | h->got.refcount--; | |
3652 | } | |
3653 | else | |
3654 | { | |
3655 | if (local_got_refcounts && local_got_refcounts[r_symndx] > 0) | |
3656 | local_got_refcounts[r_symndx]--; | |
3657 | } | |
3658 | break; | |
3659 | ||
3660 | case R_M32R_16_RELA: | |
3661 | case R_M32R_24_RELA: | |
3662 | case R_M32R_32_RELA: | |
157e7bd1 | 3663 | case R_M32R_REL32: |
3eb128b2 AM |
3664 | case R_M32R_HI16_ULO_RELA: |
3665 | case R_M32R_HI16_SLO_RELA: | |
3666 | case R_M32R_LO16_RELA: | |
3667 | case R_M32R_SDA16_RELA: | |
8ce757c4 | 3668 | case R_M32R_10_PCREL_RELA: |
3eb128b2 AM |
3669 | case R_M32R_18_PCREL_RELA: |
3670 | case R_M32R_26_PCREL_RELA: | |
3671 | if (h != NULL) | |
3672 | { | |
3673 | struct elf_m32r_link_hash_entry *eh; | |
3674 | struct elf_m32r_dyn_relocs **pp; | |
3675 | struct elf_m32r_dyn_relocs *p; | |
6edf0760 | 3676 | |
0e1862bb | 3677 | if (!bfd_link_pic (info) && h->plt.refcount > 0) |
3eb128b2 | 3678 | h->plt.refcount -= 1; |
6edf0760 | 3679 | |
3eb128b2 | 3680 | eh = (struct elf_m32r_link_hash_entry *) h; |
6edf0760 | 3681 | |
3eb128b2 AM |
3682 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
3683 | if (p->sec == sec) | |
3684 | { | |
8ce757c4 NC |
3685 | if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA |
3686 | || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA | |
3687 | || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA | |
157e7bd1 | 3688 | || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32) |
3eb128b2 AM |
3689 | p->pc_count -= 1; |
3690 | p->count -= 1; | |
3691 | if (p->count == 0) | |
3692 | *pp = p->next; | |
3693 | break; | |
3694 | } | |
3695 | } | |
3696 | break; | |
6edf0760 | 3697 | |
3eb128b2 AM |
3698 | case R_M32R_26_PLTREL: |
3699 | if (h != NULL) | |
3700 | { | |
3701 | if (h->plt.refcount > 0) | |
3702 | h->plt.refcount--; | |
3703 | } | |
3704 | break; | |
6edf0760 | 3705 | |
3eb128b2 AM |
3706 | default: |
3707 | break; | |
3708 | } | |
3709 | } | |
6edf0760 | 3710 | |
b34976b6 | 3711 | return TRUE; |
252b5132 RH |
3712 | } |
3713 | ||
252b5132 RH |
3714 | /* Look through the relocs for a section during the first phase. |
3715 | Since we don't do .gots or .plts, we just need to consider the | |
3716 | virtual table relocs for gc. */ | |
c3668558 | 3717 | |
b34976b6 | 3718 | static bfd_boolean |
47b0e7ad NC |
3719 | m32r_elf_check_relocs (bfd *abfd, |
3720 | struct bfd_link_info *info, | |
3721 | asection *sec, | |
3722 | const Elf_Internal_Rela *relocs) | |
252b5132 RH |
3723 | { |
3724 | Elf_Internal_Shdr *symtab_hdr; | |
5582a088 | 3725 | struct elf_link_hash_entry **sym_hashes; |
252b5132 RH |
3726 | const Elf_Internal_Rela *rel; |
3727 | const Elf_Internal_Rela *rel_end; | |
6edf0760 NC |
3728 | struct elf_m32r_link_hash_table *htab; |
3729 | bfd *dynobj; | |
c7e2358a | 3730 | asection *sreloc; |
c3668558 | 3731 | |
0e1862bb | 3732 | if (bfd_link_relocatable (info)) |
b34976b6 | 3733 | return TRUE; |
c3668558 | 3734 | |
c7e2358a | 3735 | sreloc = NULL; |
252b5132 RH |
3736 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3737 | sym_hashes = elf_sym_hashes (abfd); | |
c3668558 | 3738 | |
6edf0760 | 3739 | htab = m32r_elf_hash_table (info); |
4dfe6ac6 NC |
3740 | if (htab == NULL) |
3741 | return FALSE; | |
3742 | ||
6edf0760 | 3743 | dynobj = htab->root.dynobj; |
6edf0760 | 3744 | |
252b5132 RH |
3745 | rel_end = relocs + sec->reloc_count; |
3746 | for (rel = relocs; rel < rel_end; rel++) | |
3747 | { | |
6edf0760 | 3748 | int r_type; |
252b5132 RH |
3749 | struct elf_link_hash_entry *h; |
3750 | unsigned long r_symndx; | |
c3668558 | 3751 | |
252b5132 | 3752 | r_symndx = ELF32_R_SYM (rel->r_info); |
6edf0760 | 3753 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 RH |
3754 | if (r_symndx < symtab_hdr->sh_info) |
3755 | h = NULL; | |
3756 | else | |
973a3492 L |
3757 | { |
3758 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3759 | while (h->root.type == bfd_link_hash_indirect | |
3760 | || h->root.type == bfd_link_hash_warning) | |
3761 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
3762 | |
3763 | /* PR15323, ref flags aren't set for references in the same | |
3764 | object. */ | |
3765 | h->root.non_ir_ref = 1; | |
973a3492 | 3766 | } |
c3668558 | 3767 | |
6edf0760 NC |
3768 | /* Some relocs require a global offset table. */ |
3769 | if (htab->sgot == NULL) | |
3770 | { | |
3771 | switch (r_type) | |
3772 | { | |
3773 | case R_M32R_GOT16_HI_ULO: | |
3774 | case R_M32R_GOT16_HI_SLO: | |
097f809a NC |
3775 | case R_M32R_GOTOFF: |
3776 | case R_M32R_GOTOFF_HI_ULO: | |
3777 | case R_M32R_GOTOFF_HI_SLO: | |
3778 | case R_M32R_GOTOFF_LO: | |
6edf0760 NC |
3779 | case R_M32R_GOT16_LO: |
3780 | case R_M32R_GOTPC24: | |
3781 | case R_M32R_GOTPC_HI_ULO: | |
3782 | case R_M32R_GOTPC_HI_SLO: | |
3783 | case R_M32R_GOTPC_LO: | |
3784 | case R_M32R_GOT24: | |
3785 | if (dynobj == NULL) | |
3786 | htab->root.dynobj = dynobj = abfd; | |
3787 | if (! create_got_section (dynobj, info)) | |
3788 | return FALSE; | |
3789 | break; | |
3790 | ||
3791 | default: | |
3792 | break; | |
3793 | } | |
3794 | } | |
3795 | ||
3796 | switch (r_type) | |
252b5132 | 3797 | { |
6edf0760 NC |
3798 | case R_M32R_GOT16_HI_ULO: |
3799 | case R_M32R_GOT16_HI_SLO: | |
41978308 | 3800 | case R_M32R_GOT16_LO: |
6edf0760 NC |
3801 | case R_M32R_GOT24: |
3802 | ||
3803 | if (h != NULL) | |
3804 | h->got.refcount += 1; | |
3805 | else | |
3806 | { | |
3807 | bfd_signed_vma *local_got_refcounts; | |
3808 | ||
3809 | /* This is a global offset table entry for a local | |
3810 | symbol. */ | |
3811 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
3812 | if (local_got_refcounts == NULL) | |
3813 | { | |
3814 | bfd_size_type size; | |
3815 | ||
3816 | size = symtab_hdr->sh_info; | |
3817 | size *= sizeof (bfd_signed_vma); | |
47b0e7ad | 3818 | local_got_refcounts = bfd_zalloc (abfd, size); |
6edf0760 NC |
3819 | if (local_got_refcounts == NULL) |
3820 | return FALSE; | |
3821 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
3822 | } | |
3823 | local_got_refcounts[r_symndx] += 1; | |
3824 | } | |
3825 | break; | |
3826 | ||
3827 | case R_M32R_26_PLTREL: | |
3828 | /* This symbol requires a procedure linkage table entry. We | |
3829 | actually build the entry in adjust_dynamic_symbol, | |
3830 | because this might be a case of linking PIC code without | |
3831 | linking in any dynamic objects, in which case we don't | |
3832 | need to generate a procedure linkage table after all. */ | |
41978308 | 3833 | |
6edf0760 NC |
3834 | /* If this is a local symbol, we resolve it directly without |
3835 | creating a procedure linkage table entry. */ | |
3836 | if (h == NULL) | |
3837 | continue; | |
3838 | ||
f5385ebf | 3839 | if (h->forced_local) |
6edf0760 NC |
3840 | break; |
3841 | ||
f5385ebf | 3842 | h->needs_plt = 1; |
6edf0760 NC |
3843 | h->plt.refcount += 1; |
3844 | break; | |
3845 | ||
3846 | case R_M32R_16_RELA: | |
3847 | case R_M32R_24_RELA: | |
3848 | case R_M32R_32_RELA: | |
157e7bd1 | 3849 | case R_M32R_REL32: |
6edf0760 NC |
3850 | case R_M32R_HI16_ULO_RELA: |
3851 | case R_M32R_HI16_SLO_RELA: | |
3852 | case R_M32R_LO16_RELA: | |
3853 | case R_M32R_SDA16_RELA: | |
8ce757c4 | 3854 | case R_M32R_10_PCREL_RELA: |
6edf0760 NC |
3855 | case R_M32R_18_PCREL_RELA: |
3856 | case R_M32R_26_PCREL_RELA: | |
3857 | ||
0e1862bb | 3858 | if (h != NULL && !bfd_link_pic (info)) |
6edf0760 | 3859 | { |
f5385ebf | 3860 | h->non_got_ref = 1; |
6edf0760 NC |
3861 | h->plt.refcount += 1; |
3862 | } | |
3863 | ||
3864 | /* If we are creating a shared library, and this is a reloc | |
3865 | against a global symbol, or a non PC relative reloc | |
3866 | against a local symbol, then we need to copy the reloc | |
3867 | into the shared library. However, if we are linking with | |
3868 | -Bsymbolic, we do not need to copy a reloc against a | |
3869 | global symbol which is defined in an object we are | |
3870 | including in the link (i.e., DEF_REGULAR is set). At | |
3871 | this point we have not seen all the input files, so it is | |
3872 | possible that DEF_REGULAR is not set now but will be set | |
3873 | later (it is never cleared). We account for that | |
3874 | possibility below by storing information in the | |
3875 | dyn_relocs field of the hash table entry. A similar | |
3876 | situation occurs when creating shared libraries and symbol | |
3877 | visibility changes render the symbol local. | |
3878 | ||
3879 | If on the other hand, we are creating an executable, we | |
3880 | may need to keep relocations for symbols satisfied by a | |
3881 | dynamic library if we manage to avoid copy relocs for the | |
3882 | symbol. */ | |
0e1862bb | 3883 | if ((bfd_link_pic (info) |
6edf0760 | 3884 | && (sec->flags & SEC_ALLOC) != 0 |
8ce757c4 | 3885 | && (( r_type != R_M32R_26_PCREL_RELA |
157e7bd1 | 3886 | && r_type != R_M32R_18_PCREL_RELA |
8ce757c4 | 3887 | && r_type != R_M32R_10_PCREL_RELA |
157e7bd1 | 3888 | && r_type != R_M32R_REL32) |
6edf0760 NC |
3889 | || (h != NULL |
3890 | && (! info->symbolic | |
3891 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 3892 | || !h->def_regular)))) |
0e1862bb | 3893 | || (!bfd_link_pic (info) |
6edf0760 NC |
3894 | && (sec->flags & SEC_ALLOC) != 0 |
3895 | && h != NULL | |
3896 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 3897 | || !h->def_regular))) |
6edf0760 NC |
3898 | { |
3899 | struct elf_m32r_dyn_relocs *p; | |
3900 | struct elf_m32r_dyn_relocs **head; | |
3901 | ||
3902 | if (dynobj == NULL) | |
3903 | htab->root.dynobj = dynobj = abfd; | |
3904 | ||
3905 | /* When creating a shared object, we must copy these | |
3906 | relocs into the output file. We create a reloc | |
3907 | section in dynobj and make room for the reloc. */ | |
3908 | if (sreloc == NULL) | |
3909 | { | |
83bac4b0 NC |
3910 | sreloc = _bfd_elf_make_dynamic_reloc_section |
3911 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
41978308 | 3912 | |
83bac4b0 NC |
3913 | if (sreloc == NULL) |
3914 | return FALSE; | |
6edf0760 | 3915 | } |
41978308 | 3916 | |
6edf0760 NC |
3917 | /* If this is a global symbol, we count the number of |
3918 | relocations we need for this symbol. */ | |
3919 | if (h != NULL) | |
3920 | head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs; | |
3921 | else | |
3922 | { | |
87d72d41 | 3923 | /* Track dynamic relocs needed for local syms too. */ |
6edf0760 | 3924 | asection *s; |
6edfbbad | 3925 | void *vpp; |
87d72d41 | 3926 | Elf_Internal_Sym *isym; |
6edf0760 | 3927 | |
87d72d41 AM |
3928 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
3929 | abfd, r_symndx); | |
3930 | if (isym == NULL) | |
3931 | return FALSE; | |
3932 | ||
3933 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
3934 | if (s == NULL) | |
3935 | s = sec; | |
6edf0760 | 3936 | |
6edfbbad DJ |
3937 | vpp = &elf_section_data (s)->local_dynrel; |
3938 | head = (struct elf_m32r_dyn_relocs **) vpp; | |
6edf0760 NC |
3939 | } |
3940 | ||
3941 | p = *head; | |
3942 | if (p == NULL || p->sec != sec) | |
3943 | { | |
3944 | bfd_size_type amt = sizeof (*p); | |
47b0e7ad NC |
3945 | |
3946 | p = bfd_alloc (dynobj, amt); | |
6edf0760 NC |
3947 | if (p == NULL) |
3948 | return FALSE; | |
3949 | p->next = *head; | |
3950 | *head = p; | |
3951 | p->sec = sec; | |
3952 | p->count = 0; | |
3953 | p->pc_count = 0; | |
3954 | } | |
3955 | ||
3956 | p->count += 1; | |
8ce757c4 NC |
3957 | if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA |
3958 | || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA | |
3959 | || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA | |
3960 | || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32) | |
6edf0760 NC |
3961 | p->pc_count += 1; |
3962 | } | |
3963 | break; | |
3964 | ||
252b5132 RH |
3965 | /* This relocation describes the C++ object vtable hierarchy. |
3966 | Reconstruct it for later use during GC. */ | |
6edf0760 | 3967 | case R_M32R_RELA_GNU_VTINHERIT: |
252b5132 | 3968 | case R_M32R_GNU_VTINHERIT: |
c152c796 | 3969 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 3970 | return FALSE; |
252b5132 | 3971 | break; |
c3668558 | 3972 | |
252b5132 RH |
3973 | /* This relocation describes which C++ vtable entries are actually |
3974 | used. Record for later use during GC. */ | |
3975 | case R_M32R_GNU_VTENTRY: | |
d17e0c6e JB |
3976 | BFD_ASSERT (h != NULL); |
3977 | if (h != NULL | |
3978 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3979 | return FALSE; |
252b5132 | 3980 | break; |
6edf0760 | 3981 | case R_M32R_RELA_GNU_VTENTRY: |
d17e0c6e JB |
3982 | BFD_ASSERT (h != NULL); |
3983 | if (h != NULL | |
3984 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
6edf0760 NC |
3985 | return FALSE; |
3986 | break; | |
252b5132 RH |
3987 | } |
3988 | } | |
c3668558 | 3989 | |
b34976b6 | 3990 | return TRUE; |
252b5132 | 3991 | } |
2f89ff8d | 3992 | |
b35d266b | 3993 | static const struct bfd_elf_special_section m32r_elf_special_sections[] = |
2f89ff8d | 3994 | { |
0112cd26 NC |
3995 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
3996 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
3997 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
3998 | }; |
3999 | ||
6edf0760 | 4000 | static enum elf_reloc_type_class |
7e612e98 AM |
4001 | m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4002 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
4003 | const Elf_Internal_Rela *rela) | |
6edf0760 NC |
4004 | { |
4005 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4006 | { | |
47b0e7ad NC |
4007 | case R_M32R_RELATIVE: return reloc_class_relative; |
4008 | case R_M32R_JMP_SLOT: return reloc_class_plt; | |
4009 | case R_M32R_COPY: return reloc_class_copy; | |
4010 | default: return reloc_class_normal; | |
6edf0760 NC |
4011 | } |
4012 | } | |
252b5132 | 4013 | \f |
252b5132 | 4014 | #define ELF_ARCH bfd_arch_m32r |
ae95ffa6 | 4015 | #define ELF_TARGET_ID M32R_ELF_DATA |
aa4f99bb AO |
4016 | #define ELF_MACHINE_CODE EM_M32R |
4017 | #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R | |
e916b64e | 4018 | #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */ |
252b5132 | 4019 | |
6d00b590 | 4020 | #define TARGET_BIG_SYM m32r_elf32_vec |
252b5132 | 4021 | #define TARGET_BIG_NAME "elf32-m32r" |
6d00b590 | 4022 | #define TARGET_LITTLE_SYM m32r_elf32_le_vec |
6edf0760 | 4023 | #define TARGET_LITTLE_NAME "elf32-m32rle" |
252b5132 | 4024 | |
6edf0760 | 4025 | #define elf_info_to_howto m32r_info_to_howto |
252b5132 RH |
4026 | #define elf_info_to_howto_rel m32r_info_to_howto_rel |
4027 | #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section | |
4028 | #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing | |
4029 | #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook | |
4030 | #define elf_backend_relocate_section m32r_elf_relocate_section | |
4031 | #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook | |
4032 | #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook | |
4033 | #define elf_backend_check_relocs m32r_elf_check_relocs | |
4034 | ||
6edf0760 NC |
4035 | #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections |
4036 | #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create | |
4037 | #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections | |
74541ad4 AM |
4038 | #define elf_backend_omit_section_dynsym \ |
4039 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
6edf0760 NC |
4040 | #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections |
4041 | #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol | |
4042 | #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol | |
4043 | #define elf_backend_reloc_type_class m32r_elf_reloc_type_class | |
4044 | #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol | |
4045 | ||
252b5132 | 4046 | #define elf_backend_can_gc_sections 1 |
6edf0760 | 4047 | /*#if !USE_REL |
b491616a | 4048 | #define elf_backend_rela_normal 1 |
6edf0760 NC |
4049 | #endif*/ |
4050 | #define elf_backend_can_refcount 1 | |
4051 | #define elf_backend_want_got_plt 1 | |
4052 | #define elf_backend_plt_readonly 1 | |
4053 | #define elf_backend_want_plt_sym 0 | |
4054 | #define elf_backend_got_header_size 12 | |
4055 | ||
4056 | #define elf_backend_may_use_rel_p 1 | |
4057 | #ifdef USE_M32R_OLD_RELOC | |
4058 | #define elf_backend_default_use_rela_p 0 | |
4059 | #define elf_backend_may_use_rela_p 0 | |
4060 | #else | |
4061 | #define elf_backend_default_use_rela_p 1 | |
4062 | #define elf_backend_may_use_rela_p 1 | |
b491616a | 4063 | #endif |
6edf0760 | 4064 | |
252b5132 RH |
4065 | #define elf_backend_object_p m32r_elf_object_p |
4066 | #define elf_backend_final_write_processing m32r_elf_final_write_processing | |
252b5132 RH |
4067 | #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data |
4068 | #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags | |
4069 | #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data | |
29ef7005 | 4070 | #define elf_backend_special_sections m32r_elf_special_sections |
c3668558 | 4071 | |
252b5132 | 4072 | #include "elf32-target.h" |
6edf0760 | 4073 | |
47b0e7ad | 4074 | #undef ELF_MAXPAGESIZE |
6edf0760 NC |
4075 | #define ELF_MAXPAGESIZE 0x1000 |
4076 | ||
47b0e7ad | 4077 | #undef TARGET_BIG_SYM |
6d00b590 | 4078 | #define TARGET_BIG_SYM m32r_elf32_linux_vec |
47b0e7ad | 4079 | #undef TARGET_BIG_NAME |
6edf0760 | 4080 | #define TARGET_BIG_NAME "elf32-m32r-linux" |
47b0e7ad | 4081 | #undef TARGET_LITTLE_SYM |
6d00b590 | 4082 | #define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec |
47b0e7ad | 4083 | #undef TARGET_LITTLE_NAME |
6edf0760 | 4084 | #define TARGET_LITTLE_NAME "elf32-m32rle-linux" |
47b0e7ad | 4085 | #undef elf32_bed |
6edf0760 NC |
4086 | #define elf32_bed elf32_m32r_lin_bed |
4087 | ||
4088 | #include "elf32-target.h" | |
4089 |