Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* V850-specific support for 32-bit ELF |
e460dd0d | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
dbaa2011 AM |
3 | 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
4 | Free Software Foundation, Inc. | |
252b5132 | 5 | |
86aba9db | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
86aba9db NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
86aba9db | 11 | (at your option) any later version. |
252b5132 | 12 | |
86aba9db NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
86aba9db NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
47b0e7ad NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
cd123cb7 | 23 | |
252b5132 | 24 | /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char |
86aba9db | 25 | dependencies. As is the gas & simulator code for the v850. */ |
252b5132 | 26 | |
252b5132 | 27 | #include "sysdep.h" |
3db64b00 | 28 | #include "bfd.h" |
252b5132 RH |
29 | #include "bfdlink.h" |
30 | #include "libbfd.h" | |
31 | #include "elf-bfd.h" | |
32 | #include "elf/v850.h" | |
e12dd2ea | 33 | #include "libiberty.h" |
252b5132 | 34 | |
1cd986c5 NC |
35 | /* Sign-extend a 17-bit number. */ |
36 | #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000) | |
37 | ||
38 | /* Sign-extend a 22-bit number. */ | |
39 | #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000) | |
435b1e90 | 40 | |
e460dd0d AM |
41 | static reloc_howto_type v850_elf_howto_table[]; |
42 | ||
252b5132 RH |
43 | /* Look through the relocs for a section during the first phase, and |
44 | allocate space in the global offset table or procedure linkage | |
45 | table. */ | |
46 | ||
b34976b6 | 47 | static bfd_boolean |
47b0e7ad NC |
48 | v850_elf_check_relocs (bfd *abfd, |
49 | struct bfd_link_info *info, | |
50 | asection *sec, | |
51 | const Elf_Internal_Rela *relocs) | |
252b5132 | 52 | { |
b34976b6 | 53 | bfd_boolean ret = TRUE; |
252b5132 RH |
54 | Elf_Internal_Shdr *symtab_hdr; |
55 | struct elf_link_hash_entry **sym_hashes; | |
56 | const Elf_Internal_Rela *rel; | |
57 | const Elf_Internal_Rela *rel_end; | |
252b5132 RH |
58 | enum v850_reloc_type r_type; |
59 | int other = 0; | |
47b0e7ad | 60 | const char *common = NULL; |
252b5132 | 61 | |
1049f94e | 62 | if (info->relocatable) |
b34976b6 | 63 | return TRUE; |
252b5132 RH |
64 | |
65 | #ifdef DEBUG | |
d003868e AM |
66 | _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B", |
67 | sec, abfd); | |
252b5132 RH |
68 | #endif |
69 | ||
252b5132 RH |
70 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
71 | sym_hashes = elf_sym_hashes (abfd); | |
252b5132 RH |
72 | |
73 | rel_end = relocs + sec->reloc_count; | |
74 | for (rel = relocs; rel < rel_end; rel++) | |
75 | { | |
76 | unsigned long r_symndx; | |
77 | struct elf_link_hash_entry *h; | |
78 | ||
79 | r_symndx = ELF32_R_SYM (rel->r_info); | |
80 | if (r_symndx < symtab_hdr->sh_info) | |
81 | h = NULL; | |
82 | else | |
973a3492 L |
83 | { |
84 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
85 | while (h->root.type == bfd_link_hash_indirect | |
86 | || h->root.type == bfd_link_hash_warning) | |
87 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
88 | } | |
252b5132 RH |
89 | |
90 | r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info); | |
91 | switch (r_type) | |
92 | { | |
93 | default: | |
94 | case R_V850_NONE: | |
95 | case R_V850_9_PCREL: | |
1cd986c5 NC |
96 | case R_V850_16_PCREL: |
97 | case R_V850_17_PCREL: | |
252b5132 | 98 | case R_V850_22_PCREL: |
1cd986c5 NC |
99 | case R_V850_32_PCREL: |
100 | case R_V850_32_ABS: | |
252b5132 | 101 | case R_V850_HI16: |
1cd986c5 | 102 | case R_V850_HI16_S: |
252b5132 | 103 | case R_V850_LO16: |
1cd986c5 | 104 | case R_V850_LO16_S1: |
1e50d24d | 105 | case R_V850_LO16_SPLIT_OFFSET: |
1cd986c5 | 106 | case R_V850_23: |
e30ddb24 NC |
107 | case R_V850_ABS32: |
108 | case R_V850_REL32: | |
252b5132 | 109 | case R_V850_16: |
1cd986c5 NC |
110 | case R_V850_16_S1: |
111 | case R_V850_16_SPLIT_OFFSET: | |
252b5132 RH |
112 | case R_V850_8: |
113 | case R_V850_CALLT_6_7_OFFSET: | |
1cd986c5 | 114 | case R_V850_CALLT_15_16_OFFSET: |
252b5132 RH |
115 | case R_V850_CALLT_16_16_OFFSET: |
116 | break; | |
117 | ||
118 | /* This relocation describes the C++ object vtable hierarchy. | |
119 | Reconstruct it for later use during GC. */ | |
120 | case R_V850_GNU_VTINHERIT: | |
c152c796 | 121 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 122 | return FALSE; |
252b5132 RH |
123 | break; |
124 | ||
e12dd2ea NC |
125 | /* This relocation describes which C++ vtable entries |
126 | are actually used. Record for later use during GC. */ | |
252b5132 | 127 | case R_V850_GNU_VTENTRY: |
d17e0c6e JB |
128 | BFD_ASSERT (h != NULL); |
129 | if (h != NULL | |
130 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 131 | return FALSE; |
252b5132 RH |
132 | break; |
133 | ||
134 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
135 | case R_V850_SDA_16_16_OFFSET: | |
136 | case R_V850_SDA_15_16_OFFSET: | |
137 | other = V850_OTHER_SDA; | |
138 | common = ".scommon"; | |
139 | goto small_data_common; | |
435b1e90 | 140 | |
252b5132 RH |
141 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
142 | case R_V850_ZDA_16_16_OFFSET: | |
143 | case R_V850_ZDA_15_16_OFFSET: | |
144 | other = V850_OTHER_ZDA; | |
145 | common = ".zcommon"; | |
146 | goto small_data_common; | |
435b1e90 | 147 | |
252b5132 | 148 | case R_V850_TDA_4_4_OFFSET: |
1cd986c5 NC |
149 | case R_V850_TDA_4_5_OFFSET: |
150 | case R_V850_TDA_7_7_OFFSET: | |
252b5132 RH |
151 | case R_V850_TDA_6_8_OFFSET: |
152 | case R_V850_TDA_7_8_OFFSET: | |
252b5132 RH |
153 | case R_V850_TDA_16_16_OFFSET: |
154 | other = V850_OTHER_TDA; | |
155 | common = ".tcommon"; | |
156 | /* fall through */ | |
157 | ||
158 | #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) | |
159 | ||
160 | small_data_common: | |
161 | if (h) | |
162 | { | |
e12dd2ea NC |
163 | /* Flag which type of relocation was used. */ |
164 | h->other |= other; | |
252b5132 RH |
165 | if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) |
166 | && (h->other & V850_OTHER_ERROR) == 0) | |
167 | { | |
168 | const char * msg; | |
169 | static char buff[200]; /* XXX */ | |
170 | ||
171 | switch (h->other & V850_OTHER_MASK) | |
172 | { | |
173 | default: | |
174 | msg = _("Variable `%s' cannot occupy in multiple small data regions"); | |
175 | break; | |
176 | case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: | |
177 | msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions"); | |
178 | break; | |
179 | case V850_OTHER_SDA | V850_OTHER_ZDA: | |
180 | msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously"); | |
181 | break; | |
182 | case V850_OTHER_SDA | V850_OTHER_TDA: | |
183 | msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously"); | |
184 | break; | |
185 | case V850_OTHER_ZDA | V850_OTHER_TDA: | |
186 | msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously"); | |
187 | break; | |
188 | } | |
189 | ||
190 | sprintf (buff, msg, h->root.root.string); | |
191 | info->callbacks->warning (info, buff, h->root.root.string, | |
dc810e39 AM |
192 | abfd, h->root.u.def.section, |
193 | (bfd_vma) 0); | |
252b5132 RH |
194 | |
195 | bfd_set_error (bfd_error_bad_value); | |
196 | h->other |= V850_OTHER_ERROR; | |
b34976b6 | 197 | ret = FALSE; |
252b5132 RH |
198 | } |
199 | } | |
200 | ||
201 | if (h && h->root.type == bfd_link_hash_common | |
202 | && h->root.u.c.p | |
203 | && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) | |
204 | { | |
e12dd2ea NC |
205 | asection * section; |
206 | ||
207 | section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); | |
252b5132 RH |
208 | section->flags |= SEC_IS_COMMON; |
209 | } | |
210 | ||
211 | #ifdef DEBUG | |
212 | fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", | |
213 | v850_elf_howto_table[ (int)r_type ].name, | |
214 | (h && h->root.root.string) ? h->root.root.string : "<unknown>", | |
215 | (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); | |
216 | #endif | |
217 | break; | |
218 | } | |
219 | } | |
220 | ||
221 | return ret; | |
222 | } | |
223 | ||
e12dd2ea NC |
224 | /* In the old version, when an entry was checked out from the table, |
225 | it was deleted. This produced an error if the entry was needed | |
226 | more than once, as the second attempted retry failed. | |
227 | ||
228 | In the current version, the entry is not deleted, instead we set | |
b34976b6 | 229 | the field 'found' to TRUE. If a second lookup matches the same |
e12dd2ea NC |
230 | entry, then we know that the hi16s reloc has already been updated |
231 | and does not need to be updated a second time. | |
232 | ||
233 | TODO - TOFIX: If it is possible that we need to restore 2 different | |
234 | addresses from the same table entry, where the first generates an | |
235 | overflow, whilst the second do not, then this code will fail. */ | |
252b5132 RH |
236 | |
237 | typedef struct hi16s_location | |
238 | { | |
47b0e7ad NC |
239 | bfd_vma addend; |
240 | bfd_byte * address; | |
241 | unsigned long counter; | |
242 | bfd_boolean found; | |
243 | struct hi16s_location * next; | |
252b5132 RH |
244 | } |
245 | hi16s_location; | |
246 | ||
47b0e7ad NC |
247 | static hi16s_location * previous_hi16s; |
248 | static hi16s_location * free_hi16s; | |
249 | static unsigned long hi16s_counter; | |
252b5132 RH |
250 | |
251 | static void | |
47b0e7ad | 252 | remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address) |
252b5132 RH |
253 | { |
254 | hi16s_location * entry = NULL; | |
dc810e39 | 255 | bfd_size_type amt = sizeof (* free_hi16s); |
435b1e90 | 256 | |
252b5132 RH |
257 | /* Find a free structure. */ |
258 | if (free_hi16s == NULL) | |
47b0e7ad | 259 | free_hi16s = bfd_zalloc (abfd, amt); |
252b5132 RH |
260 | |
261 | entry = free_hi16s; | |
262 | free_hi16s = free_hi16s->next; | |
435b1e90 | 263 | |
252b5132 RH |
264 | entry->addend = addend; |
265 | entry->address = address; | |
266 | entry->counter = hi16s_counter ++; | |
b34976b6 | 267 | entry->found = FALSE; |
252b5132 RH |
268 | entry->next = previous_hi16s; |
269 | previous_hi16s = entry; | |
435b1e90 | 270 | |
252b5132 RH |
271 | /* Cope with wrap around of our counter. */ |
272 | if (hi16s_counter == 0) | |
273 | { | |
47b0e7ad | 274 | /* XXX: Assume that all counter entries differ only in their low 16 bits. */ |
252b5132 RH |
275 | for (entry = previous_hi16s; entry != NULL; entry = entry->next) |
276 | entry->counter &= 0xffff; | |
277 | ||
278 | hi16s_counter = 0x10000; | |
279 | } | |
252b5132 RH |
280 | } |
281 | ||
282 | static bfd_byte * | |
47b0e7ad | 283 | find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found) |
252b5132 | 284 | { |
b34976b6 AM |
285 | hi16s_location *match = NULL; |
286 | hi16s_location *entry; | |
b34976b6 | 287 | bfd_byte *addr; |
435b1e90 | 288 | |
252b5132 RH |
289 | /* Search the table. Record the most recent entry that matches. */ |
290 | for (entry = previous_hi16s; entry; entry = entry->next) | |
291 | { | |
292 | if (entry->addend == addend | |
293 | && (match == NULL || match->counter < entry->counter)) | |
294 | { | |
252b5132 RH |
295 | match = entry; |
296 | } | |
252b5132 RH |
297 | } |
298 | ||
299 | if (match == NULL) | |
300 | return NULL; | |
301 | ||
302 | /* Extract the address. */ | |
303 | addr = match->address; | |
304 | ||
4cc11e76 | 305 | /* Remember if this entry has already been used before. */ |
252b5132 RH |
306 | if (already_found) |
307 | * already_found = match->found; | |
308 | ||
309 | /* Note that this entry has now been used. */ | |
b34976b6 | 310 | match->found = TRUE; |
435b1e90 | 311 | |
252b5132 | 312 | return addr; |
435b1e90 | 313 | } |
252b5132 | 314 | |
1e50d24d RS |
315 | /* Calculate the final operand value for a R_V850_LO16 or |
316 | R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and | |
317 | ADDEND is the sum of the relocation symbol and offset. Store the | |
318 | operand value in *INSN and return true on success. | |
319 | ||
320 | The assembler has already done some of this: If the value stored in | |
321 | the instruction has its 15th bit set, (counting from zero) then the | |
322 | assembler will have added 1 to the value stored in the associated | |
323 | HI16S reloc. So for example, these relocations: | |
324 | ||
325 | movhi hi( fred ), r0, r1 | |
326 | movea lo( fred ), r1, r1 | |
327 | ||
328 | will store 0 in the value fields for the MOVHI and MOVEA instructions | |
329 | and addend will be the address of fred, but for these instructions: | |
330 | ||
1cd986c5 NC |
331 | movhi hi( fred + 0x123456 ), r0, r1 |
332 | movea lo( fred + 0x123456 ), r1, r1 | |
1e50d24d RS |
333 | |
334 | the value stored in the MOVHI instruction will be 0x12 and the value | |
335 | stored in the MOVEA instruction will be 0x3456. If however the | |
336 | instructions were: | |
337 | ||
1cd986c5 NC |
338 | movhi hi( fred + 0x10ffff ), r0, r1 |
339 | movea lo( fred + 0x10ffff ), r1, r1 | |
1e50d24d RS |
340 | |
341 | then the value stored in the MOVHI instruction would be 0x11 (not | |
342 | 0x10) and the value stored in the MOVEA instruction would be 0xffff. | |
343 | Thus (assuming for the moment that the addend is 0), at run time the | |
344 | MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction | |
345 | adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if | |
346 | the instructions were: | |
347 | ||
1cd986c5 NC |
348 | movhi hi( fred - 1 ), r0, r1 |
349 | movea lo( fred - 1 ), r1, r1 | |
1e50d24d RS |
350 | |
351 | then 0 is stored in the MOVHI instruction and -1 is stored in the | |
352 | MOVEA instruction. | |
353 | ||
354 | Overflow can occur if the addition of the value stored in the | |
355 | instruction plus the addend sets the 15th bit when before it was clear. | |
356 | This is because the 15th bit will be sign extended into the high part, | |
357 | thus reducing its value by one, but since the 15th bit was originally | |
358 | clear, the assembler will not have added 1 to the previous HI16S reloc | |
359 | to compensate for this effect. For example: | |
360 | ||
1cd986c5 NC |
361 | movhi hi( fred + 0x123456 ), r0, r1 |
362 | movea lo( fred + 0x123456 ), r1, r1 | |
1e50d24d RS |
363 | |
364 | The value stored in HI16S reloc is 0x12, the value stored in the LO16 | |
365 | reloc is 0x3456. If we assume that the address of fred is 0x00007000 | |
366 | then the relocations become: | |
367 | ||
368 | HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 | |
369 | LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 | |
370 | ||
371 | but when the instructions are executed, the MOVEA instruction's value | |
372 | is signed extended, so the sum becomes: | |
373 | ||
374 | 0x00120000 | |
375 | + 0xffffa456 | |
376 | ------------ | |
377 | 0x0011a456 but 'fred + 0x123456' = 0x0012a456 | |
378 | ||
379 | Note that if the 15th bit was set in the value stored in the LO16 | |
380 | reloc, then we do not have to do anything: | |
381 | ||
1cd986c5 NC |
382 | movhi hi( fred + 0x10ffff ), r0, r1 |
383 | movea lo( fred + 0x10ffff ), r1, r1 | |
1e50d24d RS |
384 | |
385 | HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 | |
386 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff | |
387 | ||
388 | 0x00110000 | |
389 | + 0x00006fff | |
390 | ------------ | |
391 | 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff | |
392 | ||
393 | Overflow can also occur if the computation carries into the 16th bit | |
394 | and it also results in the 15th bit having the same value as the 15th | |
395 | bit of the original value. What happens is that the HI16S reloc | |
396 | will have already examined the 15th bit of the original value and | |
397 | added 1 to the high part if the bit is set. This compensates for the | |
398 | sign extension of 15th bit of the result of the computation. But now | |
399 | there is a carry into the 16th bit, and this has not been allowed for. | |
400 | ||
401 | So, for example if fred is at address 0xf000: | |
402 | ||
1cd986c5 NC |
403 | movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] |
404 | movea lo( fred + 0xffff ), r1, r1 | |
1e50d24d RS |
405 | |
406 | HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 | |
407 | LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) | |
408 | ||
409 | 0x00010000 | |
410 | + 0xffffefff | |
411 | ------------ | |
412 | 0x0000efff but 'fred + 0xffff' = 0x0001efff | |
413 | ||
414 | Similarly, if the 15th bit remains clear, but overflow occurs into | |
415 | the 16th bit then (assuming the address of fred is 0xf000): | |
416 | ||
1cd986c5 NC |
417 | movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] |
418 | movea lo( fred + 0x7000 ), r1, r1 | |
1e50d24d RS |
419 | |
420 | HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 | |
421 | LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
422 | ||
423 | 0x00000000 | |
424 | + 0x00006fff | |
425 | ------------ | |
426 | 0x00006fff but 'fred + 0x7000' = 0x00016fff | |
427 | ||
428 | Note - there is no need to change anything if a carry occurs, and the | |
429 | 15th bit changes its value from being set to being clear, as the HI16S | |
430 | reloc will have already added in 1 to the high part for us: | |
431 | ||
1cd986c5 NC |
432 | movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set] |
433 | movea lo( fred + 0xffff ), r1, r1 | |
1e50d24d RS |
434 | |
435 | HI16S: 0x0001 + (0x00007000 >> 16) | |
436 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
437 | ||
438 | 0x00010000 | |
439 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
440 | ------------ | |
441 | 0x00016fff which is right (assuming that fred is at 0x7000) | |
442 | ||
443 | but if the 15th bit goes from being clear to being set, then we must | |
444 | once again handle overflow: | |
445 | ||
1cd986c5 NC |
446 | movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear] |
447 | movea lo( fred + 0x7000 ), r1, r1 | |
1e50d24d RS |
448 | |
449 | HI16S: 0x0000 + (0x0000ffff >> 16) | |
450 | LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) | |
451 | ||
452 | 0x00000000 | |
453 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
454 | ------------ | |
455 | 0x00006fff which is wrong (assuming that fred is at 0xffff). */ | |
456 | ||
457 | static bfd_boolean | |
458 | v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn, | |
459 | unsigned long addend) | |
460 | { | |
461 | #define BIT15_SET(x) ((x) & 0x8000) | |
462 | #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) | |
47b0e7ad | 463 | |
1e50d24d RS |
464 | if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend)) |
465 | || (OVERFLOWS (addend, *insn) | |
466 | && ((! BIT15_SET (*insn)) || (BIT15_SET (addend))))) | |
467 | { | |
468 | bfd_boolean already_updated; | |
469 | bfd_byte *hi16s_address = find_remembered_hi16s_reloc | |
470 | (addend, & already_updated); | |
471 | ||
472 | /* Amend the matching HI16_S relocation. */ | |
473 | if (hi16s_address != NULL) | |
474 | { | |
475 | if (! already_updated) | |
476 | { | |
477 | unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address); | |
478 | hi_insn += 1; | |
479 | bfd_put_16 (abfd, hi_insn, hi16s_address); | |
480 | } | |
481 | } | |
482 | else | |
483 | { | |
4a97a0e5 | 484 | (*_bfd_error_handler) (_("FAILED to find previous HI16 reloc")); |
1e50d24d RS |
485 | return FALSE; |
486 | } | |
487 | } | |
488 | #undef OVERFLOWS | |
489 | #undef BIT15_SET | |
490 | ||
491 | /* Do not complain if value has top bit set, as this has been | |
492 | anticipated. */ | |
493 | *insn = (*insn + addend) & 0xffff; | |
494 | return TRUE; | |
495 | } | |
496 | ||
252b5132 | 497 | /* FIXME: The code here probably ought to be removed and the code in reloc.c |
4cc11e76 | 498 | allowed to do its stuff instead. At least for most of the relocs, anyway. */ |
e12dd2ea | 499 | |
252b5132 | 500 | static bfd_reloc_status_type |
47b0e7ad NC |
501 | v850_elf_perform_relocation (bfd *abfd, |
502 | unsigned int r_type, | |
503 | bfd_vma addend, | |
504 | bfd_byte *address) | |
252b5132 RH |
505 | { |
506 | unsigned long insn; | |
1e50d24d | 507 | unsigned long result; |
252b5132 | 508 | bfd_signed_vma saddend = (bfd_signed_vma) addend; |
435b1e90 | 509 | |
252b5132 RH |
510 | switch (r_type) |
511 | { | |
512 | default: | |
252b5132 | 513 | return bfd_reloc_notsupported; |
435b1e90 | 514 | |
e30ddb24 NC |
515 | case R_V850_REL32: |
516 | case R_V850_ABS32: | |
252b5132 RH |
517 | bfd_put_32 (abfd, addend, address); |
518 | return bfd_reloc_ok; | |
435b1e90 | 519 | |
1cd986c5 NC |
520 | case R_V850_23: |
521 | insn = bfd_get_32 (abfd, address); | |
522 | insn &= ~((0x7f << 4) | (0x7fff80 << (16-7))); | |
523 | insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7)); | |
524 | bfd_put_32 (abfd, (bfd_vma) insn, address); | |
525 | return bfd_reloc_ok; | |
526 | ||
252b5132 RH |
527 | case R_V850_22_PCREL: |
528 | if (saddend > 0x1fffff || saddend < -0x200000) | |
529 | return bfd_reloc_overflow; | |
435b1e90 | 530 | |
252b5132 RH |
531 | if ((addend % 2) != 0) |
532 | return bfd_reloc_dangerous; | |
435b1e90 | 533 | |
252b5132 RH |
534 | insn = bfd_get_32 (abfd, address); |
535 | insn &= ~0xfffe003f; | |
536 | insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); | |
dc810e39 | 537 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 538 | return bfd_reloc_ok; |
435b1e90 | 539 | |
1cd986c5 NC |
540 | case R_V850_17_PCREL: |
541 | if (saddend > 0xffff || saddend < -0x10000) | |
542 | return bfd_reloc_overflow; | |
543 | ||
544 | if ((addend % 2) != 0) | |
545 | return bfd_reloc_dangerous; | |
546 | ||
547 | insn = bfd_get_32 (abfd, address); | |
548 | insn &= ~ 0xfffe0010; | |
549 | insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4)); | |
550 | break; | |
551 | ||
552 | case R_V850_16_PCREL: | |
553 | if ((saddend < -0xffff) || (saddend > 0)) | |
554 | return bfd_reloc_overflow; | |
555 | ||
556 | if ((addend % 2) != 0) | |
557 | return bfd_reloc_dangerous; | |
558 | ||
559 | insn = bfd_get_16 (abfd, address); | |
560 | insn &= ~0xfffe; | |
561 | insn |= (-addend & 0xfffe); | |
562 | break; | |
563 | ||
252b5132 RH |
564 | case R_V850_9_PCREL: |
565 | if (saddend > 0xff || saddend < -0x100) | |
566 | return bfd_reloc_overflow; | |
435b1e90 | 567 | |
252b5132 RH |
568 | if ((addend % 2) != 0) |
569 | return bfd_reloc_dangerous; | |
435b1e90 | 570 | |
252b5132 RH |
571 | insn = bfd_get_16 (abfd, address); |
572 | insn &= ~ 0xf870; | |
573 | insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); | |
574 | break; | |
435b1e90 | 575 | |
252b5132 RH |
576 | case R_V850_HI16: |
577 | addend += (bfd_get_16 (abfd, address) << 16); | |
578 | addend = (addend >> 16); | |
579 | insn = addend; | |
580 | break; | |
435b1e90 | 581 | |
252b5132 RH |
582 | case R_V850_HI16_S: |
583 | /* Remember where this relocation took place. */ | |
584 | remember_hi16s_reloc (abfd, addend, address); | |
585 | ||
586 | addend += (bfd_get_16 (abfd, address) << 16); | |
587 | addend = (addend >> 16) + ((addend & 0x8000) != 0); | |
435b1e90 KH |
588 | |
589 | /* This relocation cannot overflow. */ | |
4d421096 | 590 | if (addend > 0xffff) |
252b5132 | 591 | addend = 0; |
435b1e90 | 592 | |
252b5132 RH |
593 | insn = addend; |
594 | break; | |
435b1e90 | 595 | |
252b5132 | 596 | case R_V850_LO16: |
1e50d24d RS |
597 | insn = bfd_get_16 (abfd, address); |
598 | if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend)) | |
599 | return bfd_reloc_overflow; | |
600 | break; | |
252b5132 RH |
601 | |
602 | case R_V850_8: | |
603 | addend += (char) bfd_get_8 (abfd, address); | |
604 | ||
605 | saddend = (bfd_signed_vma) addend; | |
435b1e90 | 606 | |
252b5132 RH |
607 | if (saddend > 0x7f || saddend < -0x80) |
608 | return bfd_reloc_overflow; | |
609 | ||
610 | bfd_put_8 (abfd, addend, address); | |
611 | return bfd_reloc_ok; | |
612 | ||
613 | case R_V850_CALLT_16_16_OFFSET: | |
614 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 615 | |
252b5132 | 616 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 617 | |
252b5132 RH |
618 | if (saddend > 0xffff || saddend < 0) |
619 | return bfd_reloc_overflow; | |
620 | ||
621 | insn = addend; | |
622 | break; | |
435b1e90 | 623 | |
1cd986c5 NC |
624 | case R_V850_CALLT_15_16_OFFSET: |
625 | insn = bfd_get_16 (abfd, address); | |
626 | ||
627 | addend += insn & 0xfffe;; | |
628 | ||
629 | saddend = (bfd_signed_vma) addend; | |
630 | ||
631 | if (saddend > 0xffff || saddend < 0) | |
632 | return bfd_reloc_overflow; | |
633 | ||
634 | insn = (0xfffe & addend) | |
635 | | (insn & ~0xfffe); | |
636 | break; | |
637 | ||
638 | case R_V850_CALLT_6_7_OFFSET: | |
639 | insn = bfd_get_16 (abfd, address); | |
640 | addend += ((insn & 0x3f) << 1); | |
641 | ||
642 | saddend = (bfd_signed_vma) addend; | |
643 | ||
644 | if (saddend > 0x7e || saddend < 0) | |
645 | return bfd_reloc_overflow; | |
646 | ||
647 | if (addend & 1) | |
648 | return bfd_reloc_dangerous; | |
649 | ||
650 | insn &= 0xff80; | |
651 | insn |= (addend >> 1); | |
652 | break; | |
653 | ||
252b5132 | 654 | case R_V850_16: |
252b5132 RH |
655 | case R_V850_SDA_16_16_OFFSET: |
656 | case R_V850_ZDA_16_16_OFFSET: | |
657 | case R_V850_TDA_16_16_OFFSET: | |
658 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 659 | |
252b5132 | 660 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 661 | |
252b5132 RH |
662 | if (saddend > 0x7fff || saddend < -0x8000) |
663 | return bfd_reloc_overflow; | |
664 | ||
665 | insn = addend; | |
666 | break; | |
435b1e90 | 667 | |
1cd986c5 | 668 | case R_V850_16_S1: |
252b5132 RH |
669 | case R_V850_SDA_15_16_OFFSET: |
670 | case R_V850_ZDA_15_16_OFFSET: | |
671 | insn = bfd_get_16 (abfd, address); | |
672 | addend += (insn & 0xfffe); | |
435b1e90 | 673 | |
252b5132 | 674 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 675 | |
252b5132 RH |
676 | if (saddend > 0x7ffe || saddend < -0x8000) |
677 | return bfd_reloc_overflow; | |
435b1e90 | 678 | |
252b5132 RH |
679 | if (addend & 1) |
680 | return bfd_reloc_dangerous; | |
435b1e90 | 681 | |
dc810e39 | 682 | insn = (addend &~ (bfd_vma) 1) | (insn & 1); |
252b5132 | 683 | break; |
435b1e90 | 684 | |
252b5132 RH |
685 | case R_V850_TDA_6_8_OFFSET: |
686 | insn = bfd_get_16 (abfd, address); | |
687 | addend += ((insn & 0x7e) << 1); | |
435b1e90 | 688 | |
252b5132 | 689 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 690 | |
252b5132 RH |
691 | if (saddend > 0xfc || saddend < 0) |
692 | return bfd_reloc_overflow; | |
435b1e90 | 693 | |
252b5132 RH |
694 | if (addend & 3) |
695 | return bfd_reloc_dangerous; | |
435b1e90 | 696 | |
252b5132 RH |
697 | insn &= 0xff81; |
698 | insn |= (addend >> 1); | |
699 | break; | |
435b1e90 | 700 | |
252b5132 RH |
701 | case R_V850_TDA_7_8_OFFSET: |
702 | insn = bfd_get_16 (abfd, address); | |
703 | addend += ((insn & 0x7f) << 1); | |
435b1e90 | 704 | |
252b5132 | 705 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 706 | |
252b5132 RH |
707 | if (saddend > 0xfe || saddend < 0) |
708 | return bfd_reloc_overflow; | |
435b1e90 | 709 | |
252b5132 RH |
710 | if (addend & 1) |
711 | return bfd_reloc_dangerous; | |
435b1e90 | 712 | |
252b5132 RH |
713 | insn &= 0xff80; |
714 | insn |= (addend >> 1); | |
715 | break; | |
435b1e90 | 716 | |
252b5132 RH |
717 | case R_V850_TDA_7_7_OFFSET: |
718 | insn = bfd_get_16 (abfd, address); | |
719 | addend += insn & 0x7f; | |
435b1e90 | 720 | |
252b5132 | 721 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 722 | |
252b5132 RH |
723 | if (saddend > 0x7f || saddend < 0) |
724 | return bfd_reloc_overflow; | |
435b1e90 | 725 | |
252b5132 RH |
726 | insn &= 0xff80; |
727 | insn |= addend; | |
728 | break; | |
435b1e90 | 729 | |
252b5132 RH |
730 | case R_V850_TDA_4_5_OFFSET: |
731 | insn = bfd_get_16 (abfd, address); | |
732 | addend += ((insn & 0xf) << 1); | |
435b1e90 | 733 | |
252b5132 | 734 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 735 | |
252b5132 RH |
736 | if (saddend > 0x1e || saddend < 0) |
737 | return bfd_reloc_overflow; | |
435b1e90 | 738 | |
252b5132 RH |
739 | if (addend & 1) |
740 | return bfd_reloc_dangerous; | |
435b1e90 | 741 | |
252b5132 RH |
742 | insn &= 0xfff0; |
743 | insn |= (addend >> 1); | |
744 | break; | |
435b1e90 | 745 | |
252b5132 RH |
746 | case R_V850_TDA_4_4_OFFSET: |
747 | insn = bfd_get_16 (abfd, address); | |
748 | addend += insn & 0xf; | |
435b1e90 | 749 | |
252b5132 | 750 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 751 | |
252b5132 RH |
752 | if (saddend > 0xf || saddend < 0) |
753 | return bfd_reloc_overflow; | |
435b1e90 | 754 | |
252b5132 RH |
755 | insn &= 0xfff0; |
756 | insn |= addend; | |
757 | break; | |
435b1e90 | 758 | |
1cd986c5 NC |
759 | case R_V850_LO16_S1: |
760 | insn = bfd_get_16 (abfd, address); | |
761 | result = insn & 0xfffe; | |
762 | if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) | |
763 | return bfd_reloc_overflow; | |
764 | if (result & 1) | |
765 | return bfd_reloc_overflow; | |
766 | insn = (result & 0xfffe) | |
767 | | (insn & ~0xfffe); | |
768 | bfd_put_16 (abfd, insn, address); | |
769 | return bfd_reloc_ok; | |
770 | ||
1e50d24d RS |
771 | case R_V850_LO16_SPLIT_OFFSET: |
772 | insn = bfd_get_32 (abfd, address); | |
773 | result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5); | |
774 | if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) | |
775 | return bfd_reloc_overflow; | |
776 | insn = (((result << 16) & 0xfffe0000) | |
777 | | ((result << 5) & 0x20) | |
778 | | (insn & ~0xfffe0020)); | |
779 | bfd_put_32 (abfd, insn, address); | |
780 | return bfd_reloc_ok; | |
781 | ||
1cd986c5 | 782 | case R_V850_16_SPLIT_OFFSET: |
252b5132 | 783 | case R_V850_SDA_16_16_SPLIT_OFFSET: |
1cd986c5 | 784 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
252b5132 RH |
785 | insn = bfd_get_32 (abfd, address); |
786 | addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); | |
435b1e90 | 787 | |
252b5132 | 788 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 789 | |
252b5132 RH |
790 | if (saddend > 0x7fff || saddend < -0x8000) |
791 | return bfd_reloc_overflow; | |
435b1e90 | 792 | |
252b5132 RH |
793 | insn &= 0x0001ffdf; |
794 | insn |= (addend & 1) << 5; | |
dc810e39 | 795 | insn |= (addend &~ (bfd_vma) 1) << 16; |
435b1e90 | 796 | |
dc810e39 | 797 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 798 | return bfd_reloc_ok; |
435b1e90 | 799 | |
252b5132 RH |
800 | case R_V850_GNU_VTINHERIT: |
801 | case R_V850_GNU_VTENTRY: | |
802 | return bfd_reloc_ok; | |
803 | ||
804 | } | |
805 | ||
dc810e39 | 806 | bfd_put_16 (abfd, (bfd_vma) insn, address); |
252b5132 RH |
807 | return bfd_reloc_ok; |
808 | } | |
252b5132 RH |
809 | \f |
810 | /* Insert the addend into the instruction. */ | |
e12dd2ea | 811 | |
252b5132 | 812 | static bfd_reloc_status_type |
47b0e7ad NC |
813 | v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
814 | arelent *reloc, | |
815 | asymbol *symbol, | |
816 | void * data ATTRIBUTE_UNUSED, | |
817 | asection *isection, | |
818 | bfd *obfd, | |
819 | char **err ATTRIBUTE_UNUSED) | |
252b5132 RH |
820 | { |
821 | long relocation; | |
435b1e90 | 822 | |
252b5132 RH |
823 | /* If there is an output BFD, |
824 | and the symbol is not a section name (which is only defined at final link time), | |
825 | and either we are not putting the addend into the instruction | |
e12dd2ea | 826 | or the addend is zero, so there is nothing to add into the instruction |
252b5132 | 827 | then just fixup the address and return. */ |
47b0e7ad | 828 | if (obfd != NULL |
252b5132 RH |
829 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
830 | && (! reloc->howto->partial_inplace | |
831 | || reloc->addend == 0)) | |
832 | { | |
833 | reloc->address += isection->output_offset; | |
834 | return bfd_reloc_ok; | |
835 | } | |
435b1e90 | 836 | |
252b5132 RH |
837 | /* Catch relocs involving undefined symbols. */ |
838 | if (bfd_is_und_section (symbol->section) | |
839 | && (symbol->flags & BSF_WEAK) == 0 | |
840 | && obfd == NULL) | |
841 | return bfd_reloc_undefined; | |
842 | ||
843 | /* We handle final linking of some relocs ourselves. */ | |
844 | ||
845 | /* Is the address of the relocation really within the section? */ | |
07515404 | 846 | if (reloc->address > bfd_get_section_limit (abfd, isection)) |
252b5132 | 847 | return bfd_reloc_outofrange; |
435b1e90 | 848 | |
4cc11e76 | 849 | /* Work out which section the relocation is targeted at and the |
252b5132 | 850 | initial relocation command value. */ |
435b1e90 | 851 | |
b34976b6 | 852 | if (reloc->howto->pc_relative) |
86aba9db NC |
853 | return bfd_reloc_ok; |
854 | ||
252b5132 RH |
855 | /* Get symbol value. (Common symbols are special.) */ |
856 | if (bfd_is_com_section (symbol->section)) | |
857 | relocation = 0; | |
858 | else | |
859 | relocation = symbol->value; | |
435b1e90 | 860 | |
252b5132 RH |
861 | /* Convert input-section-relative symbol value to absolute + addend. */ |
862 | relocation += symbol->section->output_section->vma; | |
863 | relocation += symbol->section->output_offset; | |
864 | relocation += reloc->addend; | |
435b1e90 | 865 | |
435b1e90 | 866 | reloc->addend = relocation; |
252b5132 RH |
867 | return bfd_reloc_ok; |
868 | } | |
86aba9db NC |
869 | |
870 | /* This function is used for relocs which are only used | |
871 | for relaxing, which the linker should otherwise ignore. */ | |
872 | ||
873 | static bfd_reloc_status_type | |
47b0e7ad NC |
874 | v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
875 | arelent *reloc_entry, | |
876 | asymbol *symbol ATTRIBUTE_UNUSED, | |
877 | void * data ATTRIBUTE_UNUSED, | |
878 | asection *input_section, | |
879 | bfd *output_bfd, | |
880 | char **error_message ATTRIBUTE_UNUSED) | |
86aba9db NC |
881 | { |
882 | if (output_bfd != NULL) | |
883 | reloc_entry->address += input_section->output_offset; | |
884 | ||
885 | return bfd_reloc_ok; | |
886 | } | |
47b0e7ad | 887 | /* Note: It is REQUIRED that the 'type' value of each entry |
1cd986c5 NC |
888 | in this array match the index of the entry in the array. |
889 | SeeAlso: RELOC_NUBMER in include/elf/v850.h */ | |
47b0e7ad NC |
890 | static reloc_howto_type v850_elf_howto_table[] = |
891 | { | |
892 | /* This reloc does nothing. */ | |
893 | HOWTO (R_V850_NONE, /* Type. */ | |
894 | 0, /* Rightshift. */ | |
895 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
896 | 32, /* Bitsize. */ | |
897 | FALSE, /* PC_relative. */ | |
898 | 0, /* Bitpos. */ | |
899 | complain_overflow_bitfield, /* Complain_on_overflow. */ | |
900 | bfd_elf_generic_reloc, /* Special_function. */ | |
901 | "R_V850_NONE", /* Name. */ | |
902 | FALSE, /* Partial_inplace. */ | |
903 | 0, /* Src_mask. */ | |
904 | 0, /* Dst_mask. */ | |
905 | FALSE), /* PCrel_offset. */ | |
906 | ||
907 | /* A PC relative 9 bit branch. */ | |
908 | HOWTO (R_V850_9_PCREL, /* Type. */ | |
1cd986c5 NC |
909 | 0, /* Rightshift. */ |
910 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
911 | 9, /* Bitsize. */ | |
47b0e7ad NC |
912 | TRUE, /* PC_relative. */ |
913 | 0, /* Bitpos. */ | |
914 | complain_overflow_bitfield, /* Complain_on_overflow. */ | |
915 | v850_elf_reloc, /* Special_function. */ | |
916 | "R_V850_9_PCREL", /* Name. */ | |
917 | FALSE, /* Partial_inplace. */ | |
918 | 0x00ffffff, /* Src_mask. */ | |
919 | 0x00ffffff, /* Dst_mask. */ | |
920 | TRUE), /* PCrel_offset. */ | |
921 | ||
922 | /* A PC relative 22 bit branch. */ | |
923 | HOWTO (R_V850_22_PCREL, /* Type. */ | |
1cd986c5 | 924 | 0, /* Rightshift. */ |
47b0e7ad NC |
925 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ |
926 | 22, /* Bitsize. */ | |
927 | TRUE, /* PC_relative. */ | |
1cd986c5 | 928 | 0, /* Bitpos. */ |
47b0e7ad NC |
929 | complain_overflow_signed, /* Complain_on_overflow. */ |
930 | v850_elf_reloc, /* Special_function. */ | |
931 | "R_V850_22_PCREL", /* Name. */ | |
932 | FALSE, /* Partial_inplace. */ | |
933 | 0x07ffff80, /* Src_mask. */ | |
934 | 0x07ffff80, /* Dst_mask. */ | |
935 | TRUE), /* PCrel_offset. */ | |
936 | ||
937 | /* High 16 bits of symbol value. */ | |
938 | HOWTO (R_V850_HI16_S, /* Type. */ | |
939 | 0, /* Rightshift. */ | |
940 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
941 | 16, /* Bitsize. */ | |
942 | FALSE, /* PC_relative. */ | |
943 | 0, /* Bitpos. */ | |
944 | complain_overflow_dont, /* Complain_on_overflow. */ | |
945 | v850_elf_reloc, /* Special_function. */ | |
946 | "R_V850_HI16_S", /* Name. */ | |
947 | FALSE, /* Partial_inplace. */ | |
948 | 0xffff, /* Src_mask. */ | |
949 | 0xffff, /* Dst_mask. */ | |
950 | FALSE), /* PCrel_offset. */ | |
951 | ||
952 | /* High 16 bits of symbol value. */ | |
953 | HOWTO (R_V850_HI16, /* Type. */ | |
954 | 0, /* Rightshift. */ | |
955 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
956 | 16, /* Bitsize. */ | |
957 | FALSE, /* PC_relative. */ | |
958 | 0, /* Bitpos. */ | |
959 | complain_overflow_dont, /* Complain_on_overflow. */ | |
960 | v850_elf_reloc, /* Special_function. */ | |
961 | "R_V850_HI16", /* Name. */ | |
962 | FALSE, /* Partial_inplace. */ | |
963 | 0xffff, /* Src_mask. */ | |
964 | 0xffff, /* Dst_mask. */ | |
965 | FALSE), /* PCrel_offset. */ | |
966 | ||
967 | /* Low 16 bits of symbol value. */ | |
968 | HOWTO (R_V850_LO16, /* Type. */ | |
969 | 0, /* Rightshift. */ | |
970 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
971 | 16, /* Bitsize. */ | |
972 | FALSE, /* PC_relative. */ | |
973 | 0, /* Bitpos. */ | |
974 | complain_overflow_dont, /* Complain_on_overflow. */ | |
975 | v850_elf_reloc, /* Special_function. */ | |
976 | "R_V850_LO16", /* Name. */ | |
977 | FALSE, /* Partial_inplace. */ | |
978 | 0xffff, /* Src_mask. */ | |
979 | 0xffff, /* Dst_mask. */ | |
980 | FALSE), /* PCrel_offset. */ | |
981 | ||
982 | /* Simple 32bit reloc. */ | |
983 | HOWTO (R_V850_ABS32, /* 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_dont, /* Complain_on_overflow. */ | |
990 | v850_elf_reloc, /* Special_function. */ | |
991 | "R_V850_ABS32", /* Name. */ | |
992 | FALSE, /* Partial_inplace. */ | |
993 | 0xffffffff, /* Src_mask. */ | |
994 | 0xffffffff, /* Dst_mask. */ | |
995 | FALSE), /* PCrel_offset. */ | |
996 | ||
997 | /* Simple 16bit reloc. */ | |
998 | HOWTO (R_V850_16, /* Type. */ | |
999 | 0, /* Rightshift. */ | |
1000 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1001 | 16, /* Bitsize. */ | |
1002 | FALSE, /* PC_relative. */ | |
1003 | 0, /* Bitpos. */ | |
1004 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1005 | bfd_elf_generic_reloc, /* Special_function. */ | |
1006 | "R_V850_16", /* Name. */ | |
1007 | FALSE, /* Partial_inplace. */ | |
1008 | 0xffff, /* Src_mask. */ | |
1009 | 0xffff, /* Dst_mask. */ | |
1010 | FALSE), /* PCrel_offset. */ | |
1011 | ||
1012 | /* Simple 8bit reloc. */ | |
1013 | HOWTO (R_V850_8, /* Type. */ | |
1014 | 0, /* Rightshift. */ | |
1015 | 0, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1016 | 8, /* Bitsize. */ | |
1017 | FALSE, /* PC_relative. */ | |
1018 | 0, /* Bitpos. */ | |
1019 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1020 | bfd_elf_generic_reloc, /* Special_function. */ | |
1021 | "R_V850_8", /* Name. */ | |
1022 | FALSE, /* Partial_inplace. */ | |
1023 | 0xff, /* Src_mask. */ | |
1024 | 0xff, /* Dst_mask. */ | |
1025 | FALSE), /* PCrel_offset. */ | |
1026 | ||
1027 | /* 16 bit offset from the short data area pointer. */ | |
1028 | HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */ | |
1029 | 0, /* Rightshift. */ | |
1030 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1031 | 16, /* Bitsize. */ | |
1032 | FALSE, /* PC_relative. */ | |
1033 | 0, /* Bitpos. */ | |
1034 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1035 | v850_elf_reloc, /* Special_function. */ | |
1036 | "R_V850_SDA_16_16_OFFSET", /* Name. */ | |
1037 | FALSE, /* Partial_inplace. */ | |
1038 | 0xffff, /* Src_mask. */ | |
1039 | 0xffff, /* Dst_mask. */ | |
1040 | FALSE), /* PCrel_offset. */ | |
1041 | ||
1042 | /* 15 bit offset from the short data area pointer. */ | |
1043 | HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */ | |
1044 | 1, /* Rightshift. */ | |
1045 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1046 | 16, /* Bitsize. */ | |
1047 | FALSE, /* PC_relative. */ | |
1048 | 1, /* Bitpos. */ | |
1049 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1050 | v850_elf_reloc, /* Special_function. */ | |
1051 | "R_V850_SDA_15_16_OFFSET", /* Name. */ | |
1052 | FALSE, /* Partial_inplace. */ | |
1053 | 0xfffe, /* Src_mask. */ | |
1054 | 0xfffe, /* Dst_mask. */ | |
1055 | FALSE), /* PCrel_offset. */ | |
1056 | ||
1057 | /* 16 bit offset from the zero data area pointer. */ | |
1058 | HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */ | |
1059 | 0, /* Rightshift. */ | |
1060 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1061 | 16, /* Bitsize. */ | |
1062 | FALSE, /* PC_relative. */ | |
1063 | 0, /* Bitpos. */ | |
1064 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1065 | v850_elf_reloc, /* Special_function. */ | |
1066 | "R_V850_ZDA_16_16_OFFSET", /* Name. */ | |
1067 | FALSE, /* Partial_inplace. */ | |
1068 | 0xffff, /* Src_mask. */ | |
1069 | 0xffff, /* Dst_mask. */ | |
1070 | FALSE), /* PCrel_offset. */ | |
1071 | ||
1072 | /* 15 bit offset from the zero data area pointer. */ | |
1073 | HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */ | |
1074 | 1, /* Rightshift. */ | |
1075 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1076 | 16, /* Bitsize. */ | |
1077 | FALSE, /* PC_relative. */ | |
1078 | 1, /* Bitpos. */ | |
1079 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1080 | v850_elf_reloc, /* Special_function. */ | |
1081 | "R_V850_ZDA_15_16_OFFSET", /* Name. */ | |
1082 | FALSE, /* Partial_inplace. */ | |
1083 | 0xfffe, /* Src_mask. */ | |
1084 | 0xfffe, /* Dst_mask. */ | |
1085 | FALSE), /* PCrel_offset. */ | |
1086 | ||
1087 | /* 6 bit offset from the tiny data area pointer. */ | |
1088 | HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */ | |
1089 | 2, /* Rightshift. */ | |
1090 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1091 | 8, /* Bitsize. */ | |
1092 | FALSE, /* PC_relative. */ | |
1093 | 1, /* Bitpos. */ | |
1094 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1095 | v850_elf_reloc, /* Special_function. */ | |
1096 | "R_V850_TDA_6_8_OFFSET", /* Name. */ | |
1097 | FALSE, /* Partial_inplace. */ | |
1098 | 0x7e, /* Src_mask. */ | |
1099 | 0x7e, /* Dst_mask. */ | |
1100 | FALSE), /* PCrel_offset. */ | |
1101 | ||
1102 | /* 8 bit offset from the tiny data area pointer. */ | |
1103 | HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */ | |
1104 | 1, /* Rightshift. */ | |
1105 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1106 | 8, /* Bitsize. */ | |
1107 | FALSE, /* PC_relative. */ | |
1108 | 0, /* Bitpos. */ | |
1109 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1110 | v850_elf_reloc, /* Special_function. */ | |
1111 | "R_V850_TDA_7_8_OFFSET", /* Name. */ | |
1112 | FALSE, /* Partial_inplace. */ | |
1113 | 0x7f, /* Src_mask. */ | |
1114 | 0x7f, /* Dst_mask. */ | |
1115 | FALSE), /* PCrel_offset. */ | |
1116 | ||
1117 | /* 7 bit offset from the tiny data area pointer. */ | |
1118 | HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */ | |
1119 | 0, /* Rightshift. */ | |
1120 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1121 | 7, /* Bitsize. */ | |
1122 | FALSE, /* PC_relative. */ | |
1123 | 0, /* Bitpos. */ | |
1124 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1125 | v850_elf_reloc, /* Special_function. */ | |
1126 | "R_V850_TDA_7_7_OFFSET", /* Name. */ | |
1127 | FALSE, /* Partial_inplace. */ | |
1128 | 0x7f, /* Src_mask. */ | |
1129 | 0x7f, /* Dst_mask. */ | |
1130 | FALSE), /* PCrel_offset. */ | |
1131 | ||
1132 | /* 16 bit offset from the tiny data area pointer! */ | |
1133 | HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */ | |
1134 | 0, /* Rightshift. */ | |
1135 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1136 | 16, /* Bitsize. */ | |
1137 | FALSE, /* PC_relative. */ | |
1138 | 0, /* Bitpos. */ | |
1139 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1140 | v850_elf_reloc, /* Special_function. */ | |
1141 | "R_V850_TDA_16_16_OFFSET", /* Name. */ | |
1142 | FALSE, /* Partial_inplace. */ | |
1143 | 0xffff, /* Src_mask. */ | |
1144 | 0xfff, /* Dst_mask. */ | |
1145 | FALSE), /* PCrel_offset. */ | |
1146 | ||
1147 | /* 5 bit offset from the tiny data area pointer. */ | |
1148 | HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */ | |
1149 | 1, /* Rightshift. */ | |
1150 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1151 | 5, /* Bitsize. */ | |
1152 | FALSE, /* PC_relative. */ | |
1153 | 0, /* Bitpos. */ | |
1154 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1155 | v850_elf_reloc, /* Special_function. */ | |
1156 | "R_V850_TDA_4_5_OFFSET", /* Name. */ | |
1157 | FALSE, /* Partial_inplace. */ | |
1158 | 0x0f, /* Src_mask. */ | |
1159 | 0x0f, /* Dst_mask. */ | |
1160 | FALSE), /* PCrel_offset. */ | |
1161 | ||
1162 | /* 4 bit offset from the tiny data area pointer. */ | |
1163 | HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */ | |
1164 | 0, /* Rightshift. */ | |
1165 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1166 | 4, /* Bitsize. */ | |
1167 | FALSE, /* PC_relative. */ | |
1168 | 0, /* Bitpos. */ | |
1169 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1170 | v850_elf_reloc, /* Special_function. */ | |
1171 | "R_V850_TDA_4_4_OFFSET", /* Name. */ | |
1172 | FALSE, /* Partial_inplace. */ | |
1173 | 0x0f, /* Src_mask. */ | |
1174 | 0x0f, /* Dst_mask. */ | |
1175 | FALSE), /* PCrel_offset. */ | |
1176 | ||
1177 | /* 16 bit offset from the short data area pointer. */ | |
1178 | HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */ | |
1179 | 0, /* Rightshift. */ | |
1180 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1181 | 16, /* Bitsize. */ | |
1182 | FALSE, /* PC_relative. */ | |
1183 | 0, /* Bitpos. */ | |
1184 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1185 | v850_elf_reloc, /* Special_function. */ | |
1186 | "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */ | |
1187 | FALSE, /* Partial_inplace. */ | |
1188 | 0xfffe0020, /* Src_mask. */ | |
1189 | 0xfffe0020, /* Dst_mask. */ | |
1190 | FALSE), /* PCrel_offset. */ | |
1191 | ||
1192 | /* 16 bit offset from the zero data area pointer. */ | |
1193 | HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */ | |
1194 | 0, /* Rightshift. */ | |
1195 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1196 | 16, /* Bitsize. */ | |
1197 | FALSE, /* PC_relative. */ | |
1198 | 0, /* Bitpos. */ | |
1199 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1200 | v850_elf_reloc, /* Special_function. */ | |
1201 | "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */ | |
1202 | FALSE, /* Partial_inplace. */ | |
1203 | 0xfffe0020, /* Src_mask. */ | |
1204 | 0xfffe0020, /* Dst_mask. */ | |
1205 | FALSE), /* PCrel_offset. */ | |
1206 | ||
1207 | /* 6 bit offset from the call table base pointer. */ | |
1208 | HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */ | |
1209 | 0, /* Rightshift. */ | |
1210 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1211 | 7, /* Bitsize. */ | |
1212 | FALSE, /* PC_relative. */ | |
1213 | 0, /* Bitpos. */ | |
1214 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1215 | v850_elf_reloc, /* Special_function. */ | |
1216 | "R_V850_CALLT_6_7_OFFSET", /* Name. */ | |
1217 | FALSE, /* Partial_inplace. */ | |
1218 | 0x3f, /* Src_mask. */ | |
1219 | 0x3f, /* Dst_mask. */ | |
1220 | FALSE), /* PCrel_offset. */ | |
1221 | ||
1222 | /* 16 bit offset from the call table base pointer. */ | |
1223 | HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */ | |
1224 | 0, /* Rightshift. */ | |
1225 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1226 | 16, /* Bitsize. */ | |
1227 | FALSE, /* PC_relative. */ | |
1228 | 0, /* Bitpos. */ | |
1229 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1230 | v850_elf_reloc, /* Special_function. */ | |
1231 | "R_V850_CALLT_16_16_OFFSET", /* Name. */ | |
1232 | FALSE, /* Partial_inplace. */ | |
1233 | 0xffff, /* Src_mask. */ | |
1234 | 0xffff, /* Dst_mask. */ | |
1235 | FALSE), /* PCrel_offset. */ | |
1236 | ||
1cd986c5 | 1237 | |
47b0e7ad NC |
1238 | /* GNU extension to record C++ vtable hierarchy */ |
1239 | HOWTO (R_V850_GNU_VTINHERIT, /* Type. */ | |
1cd986c5 NC |
1240 | 0, /* Rightshift. */ |
1241 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1242 | 0, /* Bitsize. */ | |
1243 | FALSE, /* PC_relative. */ | |
1244 | 0, /* Bitpos. */ | |
1245 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1246 | NULL, /* Special_function. */ | |
1247 | "R_V850_GNU_VTINHERIT", /* Name. */ | |
1248 | FALSE, /* Partial_inplace. */ | |
1249 | 0, /* Src_mask. */ | |
1250 | 0, /* Dst_mask. */ | |
1251 | FALSE), /* PCrel_offset. */ | |
1252 | ||
1253 | /* GNU extension to record C++ vtable member usage. */ | |
47b0e7ad | 1254 | HOWTO (R_V850_GNU_VTENTRY, /* Type. */ |
1cd986c5 NC |
1255 | 0, /* Rightshift. */ |
1256 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1257 | 0, /* Bitsize. */ | |
1258 | FALSE, /* PC_relative. */ | |
1259 | 0, /* Bitpos. */ | |
1260 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1261 | _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */ | |
1262 | "R_V850_GNU_VTENTRY", /* Name. */ | |
1263 | FALSE, /* Partial_inplace. */ | |
1264 | 0, /* Src_mask. */ | |
1265 | 0, /* Dst_mask. */ | |
1266 | FALSE), /* PCrel_offset. */ | |
47b0e7ad NC |
1267 | |
1268 | /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall | |
1269 | pseudo-op when it finds a function call which can be relaxed. */ | |
1270 | HOWTO (R_V850_LONGCALL, /* Type. */ | |
1cd986c5 NC |
1271 | 0, /* Rightshift. */ |
1272 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1273 | 32, /* Bitsize. */ | |
1274 | TRUE, /* PC_relative. */ | |
1275 | 0, /* Bitpos. */ | |
1276 | complain_overflow_signed, /* Complain_on_overflow. */ | |
1277 | v850_elf_ignore_reloc, /* Special_function. */ | |
1278 | "R_V850_LONGCALL", /* Name. */ | |
1279 | FALSE, /* Partial_inplace. */ | |
1280 | 0, /* Src_mask. */ | |
1281 | 0, /* Dst_mask. */ | |
1282 | TRUE), /* PCrel_offset. */ | |
47b0e7ad NC |
1283 | |
1284 | /* Indicates a .longjump pseudo-op. The compiler will generate a | |
1285 | .longjump pseudo-op when it finds a branch which can be relaxed. */ | |
1286 | HOWTO (R_V850_LONGJUMP, /* Type. */ | |
1cd986c5 NC |
1287 | 0, /* Rightshift. */ |
1288 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1289 | 32, /* Bitsize. */ | |
1290 | TRUE, /* PC_relative. */ | |
1291 | 0, /* Bitpos. */ | |
1292 | complain_overflow_signed, /* Complain_on_overflow. */ | |
1293 | v850_elf_ignore_reloc, /* Special_function. */ | |
1294 | "R_V850_LONGJUMP", /* Name. */ | |
1295 | FALSE, /* Partial_inplace. */ | |
1296 | 0, /* Src_mask. */ | |
1297 | 0, /* Dst_mask. */ | |
1298 | TRUE), /* PCrel_offset. */ | |
47b0e7ad NC |
1299 | |
1300 | HOWTO (R_V850_ALIGN, /* Type. */ | |
1cd986c5 NC |
1301 | 0, /* Rightshift. */ |
1302 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1303 | 0, /* Bitsize. */ | |
1304 | FALSE, /* PC_relative. */ | |
1305 | 0, /* Bitpos. */ | |
1306 | complain_overflow_unsigned, /* Complain_on_overflow. */ | |
1307 | v850_elf_ignore_reloc, /* Special_function. */ | |
1308 | "R_V850_ALIGN", /* Name. */ | |
1309 | FALSE, /* Partial_inplace. */ | |
1310 | 0, /* Src_mask. */ | |
1311 | 0, /* Dst_mask. */ | |
1312 | TRUE), /* PCrel_offset. */ | |
1313 | ||
47b0e7ad NC |
1314 | /* Simple pc-relative 32bit reloc. */ |
1315 | HOWTO (R_V850_REL32, /* Type. */ | |
1316 | 0, /* Rightshift. */ | |
1317 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1318 | 32, /* Bitsize. */ | |
1319 | TRUE, /* PC_relative. */ | |
1320 | 0, /* Bitpos. */ | |
1321 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1322 | v850_elf_reloc, /* Special_function. */ | |
1323 | "R_V850_REL32", /* Name. */ | |
1324 | FALSE, /* Partial_inplace. */ | |
1325 | 0xffffffff, /* Src_mask. */ | |
1326 | 0xffffffff, /* Dst_mask. */ | |
1327 | FALSE), /* PCrel_offset. */ | |
1328 | ||
1329 | /* An ld.bu version of R_V850_LO16. */ | |
1330 | HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */ | |
1331 | 0, /* Rightshift. */ | |
1332 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1333 | 16, /* Bitsize. */ | |
1334 | FALSE, /* PC_relative. */ | |
1335 | 0, /* Bitpos. */ | |
1336 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1337 | v850_elf_reloc, /* Special_function. */ | |
1338 | "R_V850_LO16_SPLIT_OFFSET", /* Name. */ | |
1339 | FALSE, /* Partial_inplace. */ | |
1340 | 0xfffe0020, /* Src_mask. */ | |
1341 | 0xfffe0020, /* Dst_mask. */ | |
1342 | FALSE), /* PCrel_offset. */ | |
1cd986c5 NC |
1343 | |
1344 | /* A unsigned PC relative 16 bit loop. */ | |
1345 | HOWTO (R_V850_16_PCREL, /* Type. */ | |
1346 | 0, /* Rightshift. */ | |
1347 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1348 | 16, /* Bitsize. */ | |
1349 | TRUE, /* PC_relative. */ | |
1350 | 0, /* Bitpos. */ | |
1351 | complain_overflow_bitfield, /* Complain_on_overflow. */ | |
1352 | v850_elf_reloc, /* Special_function. */ | |
1353 | "R_V850_16_PCREL", /* Name. */ | |
1354 | FALSE, /* Partial_inplace. */ | |
1355 | 0xfffe, /* Src_mask. */ | |
1356 | 0xfffe, /* Dst_mask. */ | |
1357 | TRUE), /* PCrel_offset. */ | |
1358 | ||
1359 | /* A PC relative 17 bit branch. */ | |
1360 | HOWTO (R_V850_17_PCREL, /* Type. */ | |
1361 | 0, /* Rightshift. */ | |
1362 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1363 | 17, /* Bitsize. */ | |
1364 | TRUE, /* PC_relative. */ | |
1365 | 0, /* Bitpos. */ | |
1366 | complain_overflow_bitfield, /* Complain_on_overflow. */ | |
1367 | v850_elf_reloc, /* Special_function. */ | |
1368 | "R_V850_17_PCREL", /* Name. */ | |
1369 | FALSE, /* Partial_inplace. */ | |
1370 | 0x0010fffe, /* Src_mask. */ | |
1371 | 0x0010fffe, /* Dst_mask. */ | |
1372 | TRUE), /* PCrel_offset. */ | |
1373 | ||
1374 | /* A 23bit offset ld/st. */ | |
1375 | HOWTO (R_V850_23, /* type. */ | |
1376 | 0, /* rightshift. */ | |
1377 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1378 | 23, /* bitsize. */ | |
1379 | FALSE, /* pc_relative. */ | |
1380 | 0, /* bitpos. */ | |
1381 | complain_overflow_dont, /* complain_on_overflow. */ | |
1382 | v850_elf_reloc, /* special_function. */ | |
1383 | "R_V850_23", /* name. */ | |
1384 | FALSE, /* partial_inplace. */ | |
1385 | 0xffff07f0, /* src_mask. */ | |
1386 | 0xffff07f0, /* dst_mask. */ | |
1387 | FALSE), /* pcrel_offset. */ | |
1388 | ||
1389 | /* A PC relative 32 bit branch. */ | |
1390 | HOWTO (R_V850_32_PCREL, /* type. */ | |
1391 | 1, /* rightshift. */ | |
1392 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1393 | 32, /* bitsize. */ | |
1394 | TRUE, /* pc_relative. */ | |
1395 | 1, /* bitpos. */ | |
1396 | complain_overflow_signed, /* complain_on_overflow. */ | |
1397 | v850_elf_reloc, /* special_function. */ | |
1398 | "R_V850_32_PCREL", /* name. */ | |
1399 | FALSE, /* partial_inplace. */ | |
1400 | 0xfffffffe, /* src_mask. */ | |
1401 | 0xfffffffe, /* dst_mask. */ | |
1402 | TRUE), /* pcrel_offset. */ | |
1403 | ||
1404 | /* A absolute 32 bit branch. */ | |
1405 | HOWTO (R_V850_32_ABS, /* type. */ | |
1406 | 1, /* rightshift. */ | |
1407 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1408 | 32, /* bitsize. */ | |
1409 | TRUE, /* pc_relative. */ | |
1410 | 1, /* bitpos. */ | |
1411 | complain_overflow_signed, /* complain_on_overflow. */ | |
1412 | v850_elf_reloc, /* special_function. */ | |
1413 | "R_V850_32_ABS", /* name. */ | |
1414 | FALSE, /* partial_inplace. */ | |
1415 | 0xfffffffe, /* src_mask. */ | |
1416 | 0xfffffffe, /* dst_mask. */ | |
1417 | FALSE), /* pcrel_offset. */ | |
1418 | ||
1419 | /* High 16 bits of symbol value. */ | |
1420 | HOWTO (R_V850_HI16, /* Type. */ | |
1421 | 0, /* Rightshift. */ | |
1422 | 1, /* Size (0 = byte, 1 = short, 2 = long). */ | |
1423 | 16, /* Bitsize. */ | |
1424 | FALSE, /* PC_relative. */ | |
1425 | 0, /* Bitpos. */ | |
1426 | complain_overflow_dont, /* Complain_on_overflow. */ | |
1427 | v850_elf_reloc, /* Special_function. */ | |
1428 | "R_V850_HI16", /* Name. */ | |
1429 | FALSE, /* Partial_inplace. */ | |
1430 | 0xffff, /* Src_mask. */ | |
1431 | 0xffff, /* Dst_mask. */ | |
1432 | FALSE), /* PCrel_offset. */ | |
1433 | ||
1434 | /* Low 16 bits of symbol value. */ | |
1435 | HOWTO (R_V850_16_S1, /* type. */ | |
1436 | 1, /* rightshift. */ | |
1437 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
1438 | 16, /* bitsize. */ | |
1439 | FALSE, /* pc_relative. */ | |
1440 | 1, /* bitpos. */ | |
1441 | complain_overflow_dont, /* complain_on_overflow. */ | |
1442 | v850_elf_reloc, /* special_function. */ | |
1443 | "R_V850_16_S1", /* name. */ | |
1444 | FALSE, /* partial_inplace. */ | |
1445 | 0xfffe, /* src_mask. */ | |
1446 | 0xfffe, /* dst_mask. */ | |
1447 | FALSE), /* pcrel_offset. */ | |
1448 | ||
1449 | /* Low 16 bits of symbol value. */ | |
1450 | HOWTO (R_V850_LO16_S1, /* type. */ | |
1451 | 1, /* rightshift. */ | |
1452 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
1453 | 16, /* bitsize. */ | |
1454 | FALSE, /* pc_relative. */ | |
1455 | 1, /* bitpos. */ | |
1456 | complain_overflow_dont, /* complain_on_overflow. */ | |
1457 | v850_elf_reloc, /* special_function. */ | |
1458 | "R_V850_LO16_S1", /* name. */ | |
1459 | FALSE, /* partial_inplace. */ | |
1460 | 0xfffe, /* src_mask. */ | |
1461 | 0xfffe, /* dst_mask. */ | |
1462 | FALSE), /* pcrel_offset. */ | |
1463 | ||
1464 | /* 16 bit offset from the call table base pointer. */ | |
1465 | HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */ | |
1466 | 1, /* rightshift. */ | |
1467 | 1, /* size (0 = byte, 1 = short, 2 = long). */ | |
1468 | 16, /* bitsize. */ | |
1469 | FALSE, /* pc_relative. */ | |
1470 | 1, /* bitpos. */ | |
1471 | complain_overflow_dont, /* complain_on_overflow. */ | |
1472 | v850_elf_reloc, /* special_function. */ | |
1473 | "R_V850_CALLT_15_16_OFFSET", /* name. */ | |
1474 | FALSE, /* partial_inplace. */ | |
1475 | 0xfffe, /* src_mask. */ | |
1476 | 0xfffe, /* dst_mask. */ | |
1477 | FALSE), /* pcrel_offset. */ | |
1478 | ||
1479 | /* Like R_V850_32 PCREL, but referring to the GOT table entry for | |
1480 | the symbol. */ | |
1481 | HOWTO (R_V850_32_GOTPCREL, /* type. */ | |
1482 | 0, /* rightshift. */ | |
1483 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1484 | 32, /* bitsize. */ | |
1485 | TRUE, /* pc_relative. */ | |
1486 | 0, /* bitpos. */ | |
1487 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
1488 | v850_elf_reloc, /* special_function. */ | |
1489 | "R_V850_32_GOTPCREL", /* name. */ | |
1490 | FALSE, /* partial_inplace. */ | |
1491 | 0xffffffff, /* src_mask. */ | |
1492 | 0xffffffff, /* dst_mask. */ | |
1493 | TRUE), /* pcrel_offset. */ | |
1494 | ||
1495 | /* Like R_V850_SDA_, but referring to the GOT table entry for | |
1496 | the symbol. */ | |
1497 | HOWTO (R_V850_16_GOT, /* type. */ | |
1498 | 0, /* rightshift. */ | |
1499 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1500 | 16, /* bitsize. */ | |
1501 | FALSE, /* pc_relative. */ | |
1502 | 0, /* bitpos. */ | |
1503 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
1504 | bfd_elf_generic_reloc, /* special_function. */ | |
1505 | "R_V850_16_GOT", /* name. */ | |
1506 | FALSE, /* partial_inplace. */ | |
1507 | 0xffff, /* src_mask. */ | |
1508 | 0xffff, /* dst_mask. */ | |
1509 | FALSE), /* pcrel_offset. */ | |
1510 | ||
1511 | HOWTO (R_V850_32_GOT, /* type. */ | |
1512 | 0, /* rightshift. */ | |
1513 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1514 | 32, /* bitsize. */ | |
1515 | FALSE, /* pc_relative. */ | |
1516 | 0, /* bitpos. */ | |
1517 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
1518 | bfd_elf_generic_reloc, /* special_function. */ | |
1519 | "R_V850_32_GOT", /* name. */ | |
1520 | FALSE, /* partial_inplace. */ | |
1521 | 0xffffffff, /* src_mask. */ | |
1522 | 0xffffffff, /* dst_mask. */ | |
1523 | FALSE), /* pcrel_offset. */ | |
1524 | ||
1525 | /* Like R_V850_22_PCREL, but referring to the procedure linkage table | |
1526 | entry for the symbol. */ | |
1527 | HOWTO (R_V850_22_PLT, /* type. */ | |
1528 | 1, /* rightshift. */ | |
1529 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1530 | 22, /* bitsize. */ | |
1531 | TRUE, /* pc_relative. */ | |
1532 | 7, /* bitpos. */ | |
1533 | complain_overflow_signed, /* complain_on_overflow. */ | |
1534 | bfd_elf_generic_reloc, /* special_function. */ | |
1535 | "R_V850_22_PLT", /* name. */ | |
1536 | FALSE, /* partial_inplace. */ | |
1537 | 0x07ffff80, /* src_mask. */ | |
1538 | 0x07ffff80, /* dst_mask. */ | |
1539 | TRUE), /* pcrel_offset. */ | |
1540 | ||
1541 | HOWTO (R_V850_32_PLT, /* type. */ | |
1542 | 1, /* rightshift. */ | |
1543 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1544 | 32, /* bitsize. */ | |
1545 | TRUE, /* pc_relative. */ | |
1546 | 1, /* bitpos. */ | |
1547 | complain_overflow_signed, /* complain_on_overflow. */ | |
1548 | bfd_elf_generic_reloc, /* special_function. */ | |
1549 | "R_V850_32_PLT", /* name. */ | |
1550 | FALSE, /* partial_inplace. */ | |
1551 | 0xffffffff, /* src_mask. */ | |
1552 | 0xffffffff, /* dst_mask. */ | |
1553 | TRUE), /* pcrel_offset. */ | |
1554 | ||
1555 | /* This is used only by the dynamic linker. The symbol should exist | |
1556 | both in the object being run and in some shared library. The | |
1557 | dynamic linker copies the data addressed by the symbol from the | |
1558 | shared library into the object, because the object being | |
1559 | run has to have the data at some particular address. */ | |
1560 | HOWTO (R_V850_COPY, /* type. */ | |
1561 | 0, /* rightshift. */ | |
1562 | 2, /* size (0 = byte, 1 = short, 2 = long). */ | |
1563 | 32, /* bitsize. */ | |
1564 | FALSE, /* pc_relative. */ | |
1565 | 0, /* bitpos. */ | |
1566 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1567 | bfd_elf_generic_reloc, /* special_function. */ | |
1568 | "R_V850_COPY", /* name. */ | |
1569 | FALSE, /* partial_inplace. */ | |
1570 | 0xffffffff, /* src_mask. */ | |
1571 | 0xffffffff, /* dst_mask. */ | |
1572 | FALSE), /* pcrel_offset. */ | |
1573 | ||
1574 | /* Like R_M32R_24, but used when setting global offset table | |
1575 | entries. */ | |
1576 | HOWTO (R_V850_GLOB_DAT, /* type. */ | |
1577 | 0, /* rightshift. */ | |
1578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1579 | 32, /* bitsize. */ | |
1580 | FALSE, /* pc_relative. */ | |
1581 | 0, /* bitpos. */ | |
1582 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1583 | bfd_elf_generic_reloc, /* special_function. */ | |
1584 | "R_V850_GLOB_DAT", /* name. */ | |
1585 | FALSE, /* partial_inplace. */ | |
1586 | 0xffffffff, /* src_mask. */ | |
1587 | 0xffffffff, /* dst_mask. */ | |
1588 | FALSE), /* pcrel_offset. */ | |
1589 | ||
1590 | /* Marks a procedure linkage table entry for a symbol. */ | |
1591 | HOWTO (R_V850_JMP_SLOT, /* type. */ | |
1592 | 0, /* rightshift. */ | |
1593 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1594 | 32, /* bitsize. */ | |
1595 | FALSE, /* pc_relative. */ | |
1596 | 0, /* bitpos. */ | |
1597 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1598 | bfd_elf_generic_reloc, /* special_function. */ | |
1599 | "R_V850_JMP_SLOT", /* name. */ | |
1600 | FALSE, /* partial_inplace. */ | |
1601 | 0xffffffff, /* src_mask. */ | |
1602 | 0xffffffff, /* dst_mask. */ | |
1603 | FALSE), /* pcrel_offset. */ | |
1604 | ||
1605 | /* Used only by the dynamic linker. When the object is run, this | |
1606 | longword is set to the load address of the object, plus the | |
1607 | addend. */ | |
1608 | HOWTO (R_V850_RELATIVE, /* type. */ | |
1609 | 0, /* rightshift. */ | |
1610 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1611 | 32, /* bitsize. */ | |
1612 | FALSE, /* pc_relative. */ | |
1613 | 0, /* bitpos. */ | |
1614 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1615 | bfd_elf_generic_reloc, /* special_function. */ | |
1616 | "R_V850_RELATIVE", /* name. */ | |
1617 | FALSE, /* partial_inplace. */ | |
1618 | 0xffffffff, /* src_mask. */ | |
1619 | 0xffffffff, /* dst_mask. */ | |
1620 | FALSE), /* pcrel_offset. */ | |
1621 | ||
1622 | HOWTO (R_V850_16_GOTOFF, /* type. */ | |
1623 | 0, /* rightshift. */ | |
1624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1625 | 16, /* bitsize. */ | |
1626 | FALSE, /* pc_relative. */ | |
1627 | 0, /* bitpos. */ | |
1628 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1629 | bfd_elf_generic_reloc, /* special_function. */ | |
1630 | "R_V850_16_GOTOFF", /* name. */ | |
1631 | FALSE, /* partial_inplace. */ | |
1632 | 0xffff, /* src_mask. */ | |
1633 | 0xffff, /* dst_mask. */ | |
1634 | FALSE), /* pcrel_offset. */ | |
1635 | ||
1636 | HOWTO (R_V850_32_GOTOFF, /* type. */ | |
1637 | 0, /* rightshift. */ | |
1638 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1639 | 32, /* bitsize. */ | |
1640 | FALSE, /* pc_relative. */ | |
1641 | 0, /* bitpos. */ | |
1642 | complain_overflow_bitfield, /* complain_on_overflow. */ | |
1643 | bfd_elf_generic_reloc, /* special_function. */ | |
1644 | "R_V850_32_GOTOFF", /* name. */ | |
1645 | FALSE, /* partial_inplace. */ | |
1646 | 0xffffffff, /* src_mask. */ | |
1647 | 0xffffffff, /* dst_mask. */ | |
1648 | FALSE), /* pcrel_offset. */ | |
1649 | ||
1650 | HOWTO (R_V850_CODE, /* type. */ | |
1651 | 0, /* rightshift. */ | |
1652 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1653 | 0, /* bitsize. */ | |
1654 | FALSE, /* pc_relative. */ | |
1655 | 0, /* bitpos. */ | |
1656 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
1657 | v850_elf_ignore_reloc, /* special_function. */ | |
1658 | "R_V850_CODE", /* name. */ | |
1659 | FALSE, /* partial_inplace. */ | |
1660 | 0, /* src_mask. */ | |
1661 | 0, /* dst_mask. */ | |
1662 | TRUE), /* pcrel_offset. */ | |
1663 | ||
1664 | HOWTO (R_V850_DATA, /* type. */ | |
1665 | 0, /* rightshift. */ | |
1666 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1667 | 0, /* bitsize. */ | |
1668 | FALSE, /* pc_relative. */ | |
1669 | 0, /* bitpos. */ | |
1670 | complain_overflow_unsigned, /* complain_on_overflow. */ | |
1671 | v850_elf_ignore_reloc, /* special_function. */ | |
1672 | "R_V850_DATA", /* name. */ | |
1673 | FALSE, /* partial_inplace. */ | |
1674 | 0, /* src_mask. */ | |
1675 | 0, /* dst_mask. */ | |
1676 | TRUE), /* pcrel_offset. */ | |
1677 | ||
47b0e7ad NC |
1678 | }; |
1679 | ||
1680 | /* Map BFD reloc types to V850 ELF reloc types. */ | |
1681 | ||
1682 | struct v850_elf_reloc_map | |
1683 | { | |
1684 | /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an | |
1685 | unsigned char. */ | |
1686 | bfd_reloc_code_real_type bfd_reloc_val; | |
1687 | unsigned int elf_reloc_val; | |
1688 | }; | |
1689 | ||
1690 | static const struct v850_elf_reloc_map v850_elf_reloc_map[] = | |
1691 | { | |
1cd986c5 NC |
1692 | { BFD_RELOC_NONE, R_V850_NONE }, |
1693 | { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, | |
1694 | { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, | |
1695 | { BFD_RELOC_HI16_S, R_V850_HI16_S }, | |
1696 | { BFD_RELOC_HI16, R_V850_HI16 }, | |
1697 | { BFD_RELOC_LO16, R_V850_LO16 }, | |
1698 | { BFD_RELOC_32, R_V850_ABS32 }, | |
1699 | { BFD_RELOC_32_PCREL, R_V850_REL32 }, | |
1700 | { BFD_RELOC_16, R_V850_16 }, | |
1701 | { BFD_RELOC_8, R_V850_8 }, | |
47b0e7ad NC |
1702 | { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, |
1703 | { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, | |
1704 | { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, | |
1705 | { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, | |
1706 | { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, | |
1707 | { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, | |
1708 | { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, | |
1709 | { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, | |
1710 | { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, | |
1711 | { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, | |
1712 | { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET }, | |
1713 | { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, | |
1714 | { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, | |
1715 | { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, | |
1716 | { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, | |
1717 | { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, | |
1718 | { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, | |
1719 | { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL }, | |
1720 | { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP }, | |
1721 | { BFD_RELOC_V850_ALIGN, R_V850_ALIGN }, | |
1cd986c5 NC |
1722 | { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL }, |
1723 | { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL }, | |
1724 | { BFD_RELOC_V850_23, R_V850_23 }, | |
1725 | { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL }, | |
1726 | { BFD_RELOC_V850_32_ABS, R_V850_32_ABS }, | |
1727 | { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 }, | |
1728 | { BFD_RELOC_V850_16_S1, R_V850_16_S1 }, | |
1729 | { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 }, | |
1730 | { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET }, | |
1731 | { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL }, | |
1732 | { BFD_RELOC_V850_16_GOT, R_V850_16_GOT }, | |
1733 | { BFD_RELOC_V850_32_GOT, R_V850_32_GOT }, | |
1734 | { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT }, | |
1735 | { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT }, | |
1736 | { BFD_RELOC_V850_COPY, R_V850_COPY }, | |
1737 | { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT }, | |
1738 | { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT }, | |
1739 | { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE }, | |
1740 | { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF }, | |
1741 | { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF }, | |
1742 | { BFD_RELOC_V850_CODE, R_V850_CODE }, | |
1743 | { BFD_RELOC_V850_DATA, R_V850_DATA }, | |
47b0e7ad NC |
1744 | }; |
1745 | \f | |
1746 | /* Map a bfd relocation into the appropriate howto structure. */ | |
1747 | ||
1748 | static reloc_howto_type * | |
1749 | v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1750 | bfd_reloc_code_real_type code) | |
1751 | { | |
1752 | unsigned int i; | |
1753 | ||
1754 | for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;) | |
1755 | if (v850_elf_reloc_map[i].bfd_reloc_val == code) | |
1756 | { | |
1757 | unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val; | |
1758 | ||
1759 | BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val); | |
1760 | ||
1761 | return v850_elf_howto_table + elf_reloc_val; | |
1762 | } | |
1763 | ||
1764 | return NULL; | |
1765 | } | |
157090f7 AM |
1766 | |
1767 | static reloc_howto_type * | |
1768 | v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1769 | const char *r_name) | |
1770 | { | |
1771 | unsigned int i; | |
1772 | ||
1773 | for (i = 0; | |
1774 | i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]); | |
1775 | i++) | |
1776 | if (v850_elf_howto_table[i].name != NULL | |
1777 | && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0) | |
1778 | return &v850_elf_howto_table[i]; | |
1779 | ||
1780 | return NULL; | |
1781 | } | |
47b0e7ad NC |
1782 | \f |
1783 | /* Set the howto pointer for an V850 ELF reloc. */ | |
1784 | ||
1785 | static void | |
1786 | v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, | |
1787 | arelent *cache_ptr, | |
1788 | Elf_Internal_Rela *dst) | |
1789 | { | |
1790 | unsigned int r_type; | |
1791 | ||
1792 | r_type = ELF32_R_TYPE (dst->r_info); | |
1793 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
1794 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
1795 | } | |
1796 | ||
1797 | /* Set the howto pointer for a V850 ELF reloc (type RELA). */ | |
1798 | ||
1799 | static void | |
1800 | v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, | |
1801 | arelent * cache_ptr, | |
1802 | Elf_Internal_Rela *dst) | |
1803 | { | |
1804 | unsigned int r_type; | |
1805 | ||
1806 | r_type = ELF32_R_TYPE (dst->r_info); | |
1807 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
1808 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
1809 | } | |
252b5132 | 1810 | \f |
b34976b6 | 1811 | static bfd_boolean |
47b0e7ad | 1812 | v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name) |
252b5132 RH |
1813 | { |
1814 | return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) | |
1815 | || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); | |
1816 | } | |
252b5132 | 1817 | \f |
5cec6941 NC |
1818 | /* We overload some of the bfd_reloc error codes for own purposes. */ |
1819 | #define bfd_reloc_gp_not_found bfd_reloc_other | |
1820 | #define bfd_reloc_ep_not_found bfd_reloc_continue | |
1821 | #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1) | |
1822 | ||
252b5132 | 1823 | /* Perform a relocation as part of a final link. */ |
e12dd2ea | 1824 | |
252b5132 | 1825 | static bfd_reloc_status_type |
47b0e7ad NC |
1826 | v850_elf_final_link_relocate (reloc_howto_type *howto, |
1827 | bfd *input_bfd, | |
1828 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
1829 | asection *input_section, | |
1830 | bfd_byte *contents, | |
1831 | bfd_vma offset, | |
1832 | bfd_vma value, | |
1833 | bfd_vma addend, | |
1834 | struct bfd_link_info *info, | |
1835 | asection *sym_sec, | |
1836 | int is_local ATTRIBUTE_UNUSED) | |
252b5132 | 1837 | { |
b34976b6 AM |
1838 | unsigned int r_type = howto->type; |
1839 | bfd_byte *hit_data = contents + offset; | |
252b5132 RH |
1840 | |
1841 | /* Adjust the value according to the relocation. */ | |
1842 | switch (r_type) | |
1843 | { | |
1844 | case R_V850_9_PCREL: | |
1845 | value -= (input_section->output_section->vma | |
1846 | + input_section->output_offset); | |
1847 | value -= offset; | |
1848 | break; | |
435b1e90 | 1849 | |
1cd986c5 NC |
1850 | case R_V850_16_PCREL: |
1851 | value -= (input_section->output_section->vma | |
1852 | + input_section->output_offset | |
1853 | + offset); | |
1854 | ||
1855 | /* If the sign extension will corrupt the value then we have overflowed. */ | |
1856 | if ((value & 0xffff0000) != 0xffff0000) | |
1857 | return bfd_reloc_overflow; | |
1858 | ||
1859 | break; | |
1860 | ||
1861 | case R_V850_17_PCREL: | |
1862 | value -= (input_section->output_section->vma | |
1863 | + input_section->output_offset | |
1864 | + offset); | |
1865 | ||
1866 | /* If the sign extension will corrupt the value then we have overflowed. */ | |
1867 | if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000)) | |
1868 | return bfd_reloc_overflow; | |
1869 | ||
1870 | value = SEXT17 (value); | |
1871 | break; | |
1872 | ||
252b5132 RH |
1873 | case R_V850_22_PCREL: |
1874 | value -= (input_section->output_section->vma | |
1875 | + input_section->output_offset | |
1876 | + offset); | |
1877 | ||
232fb1a3 | 1878 | /* If the sign extension will corrupt the value then we have overflowed. */ |
1cd986c5 | 1879 | if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000)) |
232fb1a3 | 1880 | return bfd_reloc_overflow; |
435b1e90 | 1881 | |
1cd986c5 NC |
1882 | /* Only the bottom 22 bits of the PC are valid. */ |
1883 | value = SEXT22 (value); | |
252b5132 | 1884 | break; |
435b1e90 | 1885 | |
1cd986c5 | 1886 | case R_V850_32_PCREL: |
e30ddb24 NC |
1887 | value -= (input_section->output_section->vma |
1888 | + input_section->output_offset | |
1889 | + offset); | |
1890 | break; | |
1891 | ||
1cd986c5 NC |
1892 | case R_V850_32_ABS: |
1893 | case R_V850_23: | |
252b5132 RH |
1894 | case R_V850_HI16_S: |
1895 | case R_V850_HI16: | |
1896 | case R_V850_LO16: | |
1cd986c5 | 1897 | case R_V850_LO16_S1: |
1e50d24d | 1898 | case R_V850_LO16_SPLIT_OFFSET: |
252b5132 | 1899 | case R_V850_16: |
e30ddb24 | 1900 | case R_V850_ABS32: |
252b5132 RH |
1901 | case R_V850_8: |
1902 | break; | |
1903 | ||
435b1e90 | 1904 | case R_V850_ZDA_15_16_OFFSET: |
252b5132 RH |
1905 | case R_V850_ZDA_16_16_OFFSET: |
1906 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
1907 | if (sym_sec == NULL) | |
1908 | return bfd_reloc_undefined; | |
435b1e90 | 1909 | |
252b5132 RH |
1910 | value -= sym_sec->output_section->vma; |
1911 | break; | |
1912 | ||
1913 | case R_V850_SDA_15_16_OFFSET: | |
1914 | case R_V850_SDA_16_16_OFFSET: | |
1915 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1916 | { | |
1917 | unsigned long gp; | |
1918 | struct bfd_link_hash_entry * h; | |
1919 | ||
1920 | if (sym_sec == NULL) | |
1921 | return bfd_reloc_undefined; | |
435b1e90 | 1922 | |
252b5132 | 1923 | /* Get the value of __gp. */ |
b34976b6 | 1924 | h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE); |
47b0e7ad | 1925 | if (h == NULL |
252b5132 | 1926 | || h->type != bfd_link_hash_defined) |
5cec6941 | 1927 | return bfd_reloc_gp_not_found; |
252b5132 RH |
1928 | |
1929 | gp = (h->u.def.value | |
1930 | + h->u.def.section->output_section->vma | |
1931 | + h->u.def.section->output_offset); | |
1932 | ||
1933 | value -= sym_sec->output_section->vma; | |
1934 | value -= (gp - sym_sec->output_section->vma); | |
1935 | } | |
1936 | break; | |
1937 | ||
1938 | case R_V850_TDA_4_4_OFFSET: | |
1939 | case R_V850_TDA_4_5_OFFSET: | |
252b5132 RH |
1940 | case R_V850_TDA_7_7_OFFSET: |
1941 | case R_V850_TDA_7_8_OFFSET: | |
1942 | case R_V850_TDA_6_8_OFFSET: | |
1cd986c5 | 1943 | case R_V850_TDA_16_16_OFFSET: |
252b5132 RH |
1944 | { |
1945 | unsigned long ep; | |
1946 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1947 | |
252b5132 | 1948 | /* Get the value of __ep. */ |
b34976b6 | 1949 | h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE); |
47b0e7ad | 1950 | if (h == NULL |
252b5132 | 1951 | || h->type != bfd_link_hash_defined) |
5cec6941 | 1952 | return bfd_reloc_ep_not_found; |
252b5132 RH |
1953 | |
1954 | ep = (h->u.def.value | |
1955 | + h->u.def.section->output_section->vma | |
1956 | + h->u.def.section->output_offset); | |
1957 | ||
1958 | value -= ep; | |
1959 | } | |
1960 | break; | |
435b1e90 | 1961 | |
252b5132 RH |
1962 | case R_V850_CALLT_6_7_OFFSET: |
1963 | { | |
1964 | unsigned long ctbp; | |
1965 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1966 | |
252b5132 | 1967 | /* Get the value of __ctbp. */ |
b34976b6 | 1968 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
47b0e7ad | 1969 | if (h == NULL |
252b5132 | 1970 | || h->type != bfd_link_hash_defined) |
5cec6941 | 1971 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1972 | |
1973 | ctbp = (h->u.def.value | |
1974 | + h->u.def.section->output_section->vma | |
1975 | + h->u.def.section->output_offset); | |
1976 | value -= ctbp; | |
1977 | } | |
1978 | break; | |
435b1e90 | 1979 | |
1cd986c5 | 1980 | case R_V850_CALLT_15_16_OFFSET: |
252b5132 RH |
1981 | case R_V850_CALLT_16_16_OFFSET: |
1982 | { | |
1983 | unsigned long ctbp; | |
1984 | struct bfd_link_hash_entry * h; | |
1985 | ||
1986 | if (sym_sec == NULL) | |
1987 | return bfd_reloc_undefined; | |
435b1e90 | 1988 | |
252b5132 | 1989 | /* Get the value of __ctbp. */ |
b34976b6 | 1990 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
47b0e7ad | 1991 | if (h == NULL |
252b5132 | 1992 | || h->type != bfd_link_hash_defined) |
5cec6941 | 1993 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1994 | |
1995 | ctbp = (h->u.def.value | |
1996 | + h->u.def.section->output_section->vma | |
1997 | + h->u.def.section->output_offset); | |
1998 | ||
1999 | value -= sym_sec->output_section->vma; | |
2000 | value -= (ctbp - sym_sec->output_section->vma); | |
2001 | } | |
2002 | break; | |
435b1e90 | 2003 | |
252b5132 RH |
2004 | case R_V850_NONE: |
2005 | case R_V850_GNU_VTINHERIT: | |
2006 | case R_V850_GNU_VTENTRY: | |
86aba9db NC |
2007 | case R_V850_LONGCALL: |
2008 | case R_V850_LONGJUMP: | |
2009 | case R_V850_ALIGN: | |
252b5132 RH |
2010 | return bfd_reloc_ok; |
2011 | ||
2012 | default: | |
2013 | return bfd_reloc_notsupported; | |
2014 | } | |
2015 | ||
2016 | /* Perform the relocation. */ | |
435b1e90 | 2017 | return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); |
252b5132 | 2018 | } |
252b5132 RH |
2019 | \f |
2020 | /* Relocate an V850 ELF section. */ | |
e12dd2ea | 2021 | |
b34976b6 | 2022 | static bfd_boolean |
47b0e7ad NC |
2023 | v850_elf_relocate_section (bfd *output_bfd, |
2024 | struct bfd_link_info *info, | |
2025 | bfd *input_bfd, | |
2026 | asection *input_section, | |
2027 | bfd_byte *contents, | |
2028 | Elf_Internal_Rela *relocs, | |
2029 | Elf_Internal_Sym *local_syms, | |
2030 | asection **local_sections) | |
252b5132 | 2031 | { |
b34976b6 AM |
2032 | Elf_Internal_Shdr *symtab_hdr; |
2033 | struct elf_link_hash_entry **sym_hashes; | |
2034 | Elf_Internal_Rela *rel; | |
2035 | Elf_Internal_Rela *relend; | |
252b5132 RH |
2036 | |
2037 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; | |
2038 | sym_hashes = elf_sym_hashes (input_bfd); | |
2039 | ||
252b5132 RH |
2040 | /* Reset the list of remembered HI16S relocs to empty. */ |
2041 | free_hi16s = previous_hi16s; | |
2042 | previous_hi16s = NULL; | |
2043 | hi16s_counter = 0; | |
435b1e90 | 2044 | |
252b5132 RH |
2045 | rel = relocs; |
2046 | relend = relocs + input_section->reloc_count; | |
2047 | for (; rel < relend; rel++) | |
2048 | { | |
b34976b6 AM |
2049 | int r_type; |
2050 | reloc_howto_type *howto; | |
2051 | unsigned long r_symndx; | |
2052 | Elf_Internal_Sym *sym; | |
2053 | asection *sec; | |
2054 | struct elf_link_hash_entry *h; | |
2055 | bfd_vma relocation; | |
2056 | bfd_reloc_status_type r; | |
252b5132 RH |
2057 | |
2058 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2059 | r_type = ELF32_R_TYPE (rel->r_info); | |
2060 | ||
2061 | if (r_type == R_V850_GNU_VTENTRY | |
2062 | || r_type == R_V850_GNU_VTINHERIT) | |
2063 | continue; | |
2064 | ||
f0fe0e16 | 2065 | howto = v850_elf_howto_table + r_type; |
252b5132 RH |
2066 | h = NULL; |
2067 | sym = NULL; | |
2068 | sec = NULL; | |
2069 | if (r_symndx < symtab_hdr->sh_info) | |
2070 | { | |
2071 | sym = local_syms + r_symndx; | |
2072 | sec = local_sections[r_symndx]; | |
8517fae7 | 2073 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
2074 | } |
2075 | else | |
2076 | { | |
59c2e50f | 2077 | bfd_boolean unresolved_reloc, warned; |
435b1e90 | 2078 | |
47b0e7ad NC |
2079 | /* Note - this check is delayed until now as it is possible and |
2080 | valid to have a file without any symbols but with relocs that | |
2081 | can be processed. */ | |
641bd093 NC |
2082 | if (sym_hashes == NULL) |
2083 | { | |
2084 | info->callbacks->warning | |
2085 | (info, "no hash table available", | |
2086 | NULL, input_bfd, input_section, (bfd_vma) 0); | |
2087 | ||
2088 | return FALSE; | |
2089 | } | |
2090 | ||
b2a8e766 AM |
2091 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2092 | r_symndx, symtab_hdr, sym_hashes, | |
2093 | h, sec, relocation, | |
2094 | unresolved_reloc, warned); | |
252b5132 RH |
2095 | } |
2096 | ||
dbaa2011 | 2097 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2098 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2099 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
2100 | |
2101 | if (info->relocatable) | |
2102 | continue; | |
2103 | ||
e12dd2ea | 2104 | /* FIXME: We should use the addend, but the COFF relocations don't. */ |
252b5132 RH |
2105 | r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, |
2106 | input_section, | |
2107 | contents, rel->r_offset, | |
2108 | relocation, rel->r_addend, | |
2109 | info, sec, h == NULL); | |
2110 | ||
2111 | if (r != bfd_reloc_ok) | |
2112 | { | |
2113 | const char * name; | |
47b0e7ad | 2114 | const char * msg = NULL; |
252b5132 RH |
2115 | |
2116 | if (h != NULL) | |
2117 | name = h->root.root.string; | |
2118 | else | |
2119 | { | |
2120 | name = (bfd_elf_string_from_elf_section | |
2121 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
2122 | if (name == NULL || *name == '\0') | |
2123 | name = bfd_section_name (input_bfd, sec); | |
2124 | } | |
2125 | ||
ceaf50a2 | 2126 | switch ((int) r) |
252b5132 RH |
2127 | { |
2128 | case bfd_reloc_overflow: | |
2129 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
2130 | (info, (h ? &h->root : NULL), name, howto->name, |
2131 | (bfd_vma) 0, input_bfd, input_section, | |
2132 | rel->r_offset))) | |
b34976b6 | 2133 | return FALSE; |
252b5132 RH |
2134 | break; |
2135 | ||
2136 | case bfd_reloc_undefined: | |
2137 | if (! ((*info->callbacks->undefined_symbol) | |
2138 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
2139 | rel->r_offset, TRUE))) |
2140 | return FALSE; | |
252b5132 RH |
2141 | break; |
2142 | ||
2143 | case bfd_reloc_outofrange: | |
2144 | msg = _("internal error: out of range error"); | |
2145 | goto common_error; | |
2146 | ||
2147 | case bfd_reloc_notsupported: | |
2148 | msg = _("internal error: unsupported relocation error"); | |
2149 | goto common_error; | |
2150 | ||
2151 | case bfd_reloc_dangerous: | |
2152 | msg = _("internal error: dangerous relocation"); | |
2153 | goto common_error; | |
2154 | ||
5cec6941 | 2155 | case bfd_reloc_gp_not_found: |
252b5132 RH |
2156 | msg = _("could not locate special linker symbol __gp"); |
2157 | goto common_error; | |
2158 | ||
5cec6941 | 2159 | case bfd_reloc_ep_not_found: |
252b5132 RH |
2160 | msg = _("could not locate special linker symbol __ep"); |
2161 | goto common_error; | |
2162 | ||
5cec6941 | 2163 | case bfd_reloc_ctbp_not_found: |
252b5132 RH |
2164 | msg = _("could not locate special linker symbol __ctbp"); |
2165 | goto common_error; | |
435b1e90 | 2166 | |
252b5132 RH |
2167 | default: |
2168 | msg = _("internal error: unknown error"); | |
2169 | /* fall through */ | |
2170 | ||
2171 | common_error: | |
2172 | if (!((*info->callbacks->warning) | |
2173 | (info, msg, name, input_bfd, input_section, | |
2174 | rel->r_offset))) | |
b34976b6 | 2175 | return FALSE; |
252b5132 RH |
2176 | break; |
2177 | } | |
2178 | } | |
2179 | } | |
2180 | ||
b34976b6 | 2181 | return TRUE; |
252b5132 RH |
2182 | } |
2183 | ||
252b5132 | 2184 | static asection * |
47b0e7ad | 2185 | v850_elf_gc_mark_hook (asection *sec, |
07adf181 | 2186 | struct bfd_link_info *info, |
47b0e7ad NC |
2187 | Elf_Internal_Rela *rel, |
2188 | struct elf_link_hash_entry *h, | |
2189 | Elf_Internal_Sym *sym) | |
252b5132 RH |
2190 | { |
2191 | if (h != NULL) | |
07adf181 | 2192 | switch (ELF32_R_TYPE (rel->r_info)) |
252b5132 RH |
2193 | { |
2194 | case R_V850_GNU_VTINHERIT: | |
2195 | case R_V850_GNU_VTENTRY: | |
07adf181 AM |
2196 | return NULL; |
2197 | } | |
9ad5cbcf | 2198 | |
07adf181 | 2199 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 | 2200 | } |
e12dd2ea | 2201 | |
252b5132 | 2202 | /* Set the right machine number. */ |
e12dd2ea | 2203 | |
b34976b6 | 2204 | static bfd_boolean |
47b0e7ad | 2205 | v850_elf_object_p (bfd *abfd) |
252b5132 RH |
2206 | { |
2207 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) | |
2208 | { | |
2209 | default: | |
250d94fd AM |
2210 | case E_V850_ARCH: |
2211 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850); | |
2212 | break; | |
2213 | case E_V850E_ARCH: | |
2214 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); | |
2215 | break; | |
8ad30312 NC |
2216 | case E_V850E1_ARCH: |
2217 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e1); | |
2218 | break; | |
1cd986c5 NC |
2219 | case E_V850E2_ARCH: |
2220 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e2); | |
2221 | break; | |
2222 | case E_V850E2V3_ARCH: | |
2223 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e2v3); | |
2224 | break; | |
252b5132 | 2225 | } |
b34976b6 | 2226 | return TRUE; |
252b5132 RH |
2227 | } |
2228 | ||
2229 | /* Store the machine number in the flags field. */ | |
e12dd2ea | 2230 | |
252b5132 | 2231 | static void |
47b0e7ad NC |
2232 | v850_elf_final_write_processing (bfd *abfd, |
2233 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
252b5132 RH |
2234 | { |
2235 | unsigned long val; | |
2236 | ||
2237 | switch (bfd_get_mach (abfd)) | |
2238 | { | |
b34976b6 | 2239 | default: |
47b0e7ad NC |
2240 | case bfd_mach_v850: val = E_V850_ARCH; break; |
2241 | case bfd_mach_v850e: val = E_V850E_ARCH; break; | |
2242 | case bfd_mach_v850e1: val = E_V850E1_ARCH; break; | |
1cd986c5 NC |
2243 | case bfd_mach_v850e2: val = E_V850E2_ARCH; break; |
2244 | case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break; | |
252b5132 RH |
2245 | } |
2246 | ||
2247 | elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; | |
2248 | elf_elfheader (abfd)->e_flags |= val; | |
2249 | } | |
2250 | ||
435b1e90 | 2251 | /* Function to keep V850 specific file flags. */ |
e12dd2ea | 2252 | |
b34976b6 | 2253 | static bfd_boolean |
47b0e7ad | 2254 | v850_elf_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
2255 | { |
2256 | BFD_ASSERT (!elf_flags_init (abfd) | |
2257 | || elf_elfheader (abfd)->e_flags == flags); | |
2258 | ||
2259 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
2260 | elf_flags_init (abfd) = TRUE; |
2261 | return TRUE; | |
252b5132 RH |
2262 | } |
2263 | ||
e12dd2ea NC |
2264 | /* Merge backend specific data from an object file |
2265 | to the output object file when linking. */ | |
47b0e7ad | 2266 | |
b34976b6 | 2267 | static bfd_boolean |
47b0e7ad | 2268 | v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
2269 | { |
2270 | flagword out_flags; | |
2271 | flagword in_flags; | |
2272 | ||
2273 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2274 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 2275 | return TRUE; |
252b5132 RH |
2276 | |
2277 | in_flags = elf_elfheader (ibfd)->e_flags; | |
2278 | out_flags = elf_elfheader (obfd)->e_flags; | |
2279 | ||
2280 | if (! elf_flags_init (obfd)) | |
2281 | { | |
2282 | /* If the input is the default architecture then do not | |
2283 | bother setting the flags for the output architecture, | |
2284 | instead allow future merges to do this. If no future | |
2285 | merges ever set these flags then they will retain their | |
2286 | unitialised values, which surprise surprise, correspond | |
2287 | to the default values. */ | |
2288 | if (bfd_get_arch_info (ibfd)->the_default) | |
b34976b6 | 2289 | return TRUE; |
435b1e90 | 2290 | |
b34976b6 | 2291 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
2292 | elf_elfheader (obfd)->e_flags = in_flags; |
2293 | ||
2294 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
2295 | && bfd_get_arch_info (obfd)->the_default) | |
e12dd2ea | 2296 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); |
252b5132 | 2297 | |
b34976b6 | 2298 | return TRUE; |
252b5132 RH |
2299 | } |
2300 | ||
2301 | /* Check flag compatibility. */ | |
2302 | if (in_flags == out_flags) | |
b34976b6 | 2303 | return TRUE; |
252b5132 RH |
2304 | |
2305 | if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) | |
2306 | && (in_flags & EF_V850_ARCH) != E_V850_ARCH) | |
8ad30312 | 2307 | { |
1cd986c5 | 2308 | |
8ad30312 | 2309 | /* Allow v850e1 binaries to be linked with v850e binaries. |
1cd986c5 | 2310 | Set the output binary to v850e. */ |
8ad30312 | 2311 | if ((in_flags & EF_V850_ARCH) == E_V850E1_ARCH |
1cd986c5 NC |
2312 | && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) |
2313 | return TRUE; | |
8ad30312 | 2314 | |
1cd986c5 NC |
2315 | if ((in_flags & EF_V850_ARCH) == E_V850_ARCH |
2316 | && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) | |
8ad30312 NC |
2317 | { |
2318 | elf_elfheader (obfd)->e_flags = | |
2319 | ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH); | |
2320 | return TRUE; | |
2321 | } | |
2322 | ||
1cd986c5 NC |
2323 | if (((in_flags & EF_V850_ARCH) == E_V850_ARCH |
2324 | || (in_flags & EF_V850_ARCH) == E_V850E_ARCH) | |
2325 | && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH) | |
2326 | { | |
2327 | elf_elfheader (obfd)->e_flags = | |
2328 | ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH); | |
2329 | return TRUE; | |
2330 | } | |
2331 | ||
2332 | if (((in_flags & EF_V850_ARCH) == E_V850_ARCH | |
2333 | || (in_flags & EF_V850_ARCH) == E_V850E_ARCH | |
2334 | || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH) | |
2335 | && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH) | |
2336 | { | |
2337 | elf_elfheader (obfd)->e_flags = | |
2338 | ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH); | |
2339 | return TRUE; | |
2340 | } | |
2341 | ||
d003868e AM |
2342 | _bfd_error_handler (_("%B: Architecture mismatch with previous modules"), |
2343 | ibfd); | |
8ad30312 | 2344 | } |
252b5132 | 2345 | |
b34976b6 | 2346 | return TRUE; |
252b5132 | 2347 | } |
e12dd2ea NC |
2348 | |
2349 | /* Display the flags field. */ | |
252b5132 | 2350 | |
b34976b6 | 2351 | static bfd_boolean |
47b0e7ad | 2352 | v850_elf_print_private_bfd_data (bfd *abfd, void * ptr) |
252b5132 RH |
2353 | { |
2354 | FILE * file = (FILE *) ptr; | |
435b1e90 | 2355 | |
252b5132 | 2356 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
435b1e90 | 2357 | |
252b5132 | 2358 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
435b1e90 | 2359 | |
1cd986c5 | 2360 | /* xgettext:c-format. */ |
252b5132 | 2361 | fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); |
435b1e90 | 2362 | |
252b5132 RH |
2363 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) |
2364 | { | |
2365 | default: | |
2366 | case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; | |
47b0e7ad | 2367 | case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; |
8ad30312 | 2368 | case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break; |
1cd986c5 NC |
2369 | case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break; |
2370 | case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break; | |
252b5132 | 2371 | } |
435b1e90 | 2372 | |
252b5132 | 2373 | fputc ('\n', file); |
435b1e90 | 2374 | |
b34976b6 | 2375 | return TRUE; |
252b5132 RH |
2376 | } |
2377 | ||
2378 | /* V850 ELF uses four common sections. One is the usual one, and the | |
2379 | others are for (small) objects in one of the special data areas: | |
2380 | small, tiny and zero. All the objects are kept together, and then | |
2381 | referenced via the gp register, the ep register or the r0 register | |
2382 | respectively, which yields smaller, faster assembler code. This | |
2383 | approach is copied from elf32-mips.c. */ | |
2384 | ||
2385 | static asection v850_elf_scom_section; | |
2386 | static asymbol v850_elf_scom_symbol; | |
2387 | static asymbol * v850_elf_scom_symbol_ptr; | |
2388 | static asection v850_elf_tcom_section; | |
2389 | static asymbol v850_elf_tcom_symbol; | |
2390 | static asymbol * v850_elf_tcom_symbol_ptr; | |
2391 | static asection v850_elf_zcom_section; | |
2392 | static asymbol v850_elf_zcom_symbol; | |
2393 | static asymbol * v850_elf_zcom_symbol_ptr; | |
2394 | ||
e12dd2ea NC |
2395 | /* Given a BFD section, try to locate the |
2396 | corresponding ELF section index. */ | |
252b5132 | 2397 | |
b34976b6 | 2398 | static bfd_boolean |
47b0e7ad NC |
2399 | v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, |
2400 | asection *sec, | |
2401 | int *retval) | |
252b5132 RH |
2402 | { |
2403 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
2404 | *retval = SHN_V850_SCOMMON; | |
2405 | else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) | |
2406 | *retval = SHN_V850_TCOMMON; | |
2407 | else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) | |
2408 | *retval = SHN_V850_ZCOMMON; | |
2409 | else | |
b34976b6 | 2410 | return FALSE; |
435b1e90 | 2411 | |
b34976b6 | 2412 | return TRUE; |
252b5132 RH |
2413 | } |
2414 | ||
2415 | /* Handle the special V850 section numbers that a symbol may use. */ | |
2416 | ||
2417 | static void | |
47b0e7ad | 2418 | v850_elf_symbol_processing (bfd *abfd, asymbol *asym) |
252b5132 RH |
2419 | { |
2420 | elf_symbol_type * elfsym = (elf_symbol_type *) asym; | |
9ad5cbcf | 2421 | unsigned int indx; |
435b1e90 | 2422 | |
9ad5cbcf | 2423 | indx = elfsym->internal_elf_sym.st_shndx; |
252b5132 RH |
2424 | |
2425 | /* If the section index is an "ordinary" index, then it may | |
2426 | refer to a v850 specific section created by the assembler. | |
2427 | Check the section's type and change the index it matches. | |
435b1e90 | 2428 | |
252b5132 | 2429 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2430 | |
9ad5cbcf | 2431 | if (indx < elf_numsections (abfd)) |
1cd986c5 | 2432 | switch (elf_elfsections (abfd)[indx]->sh_type) |
252b5132 RH |
2433 | { |
2434 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2435 | indx = SHN_V850_SCOMMON; |
252b5132 | 2436 | break; |
435b1e90 | 2437 | |
252b5132 | 2438 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2439 | indx = SHN_V850_TCOMMON; |
252b5132 | 2440 | break; |
435b1e90 | 2441 | |
252b5132 | 2442 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2443 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2444 | break; |
435b1e90 | 2445 | |
252b5132 RH |
2446 | default: |
2447 | break; | |
2448 | } | |
435b1e90 | 2449 | |
9ad5cbcf | 2450 | switch (indx) |
252b5132 RH |
2451 | { |
2452 | case SHN_V850_SCOMMON: | |
2453 | if (v850_elf_scom_section.name == NULL) | |
2454 | { | |
2455 | /* Initialize the small common section. */ | |
2456 | v850_elf_scom_section.name = ".scommon"; | |
2457 | v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; | |
2458 | v850_elf_scom_section.output_section = & v850_elf_scom_section; | |
2459 | v850_elf_scom_section.symbol = & v850_elf_scom_symbol; | |
2460 | v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; | |
2461 | v850_elf_scom_symbol.name = ".scommon"; | |
2462 | v850_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
2463 | v850_elf_scom_symbol.section = & v850_elf_scom_section; | |
2464 | v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; | |
2465 | } | |
2466 | asym->section = & v850_elf_scom_section; | |
2467 | asym->value = elfsym->internal_elf_sym.st_size; | |
2468 | break; | |
435b1e90 | 2469 | |
252b5132 RH |
2470 | case SHN_V850_TCOMMON: |
2471 | if (v850_elf_tcom_section.name == NULL) | |
2472 | { | |
2473 | /* Initialize the tcommon section. */ | |
2474 | v850_elf_tcom_section.name = ".tcommon"; | |
2475 | v850_elf_tcom_section.flags = SEC_IS_COMMON; | |
2476 | v850_elf_tcom_section.output_section = & v850_elf_tcom_section; | |
2477 | v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; | |
2478 | v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; | |
2479 | v850_elf_tcom_symbol.name = ".tcommon"; | |
2480 | v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; | |
2481 | v850_elf_tcom_symbol.section = & v850_elf_tcom_section; | |
2482 | v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; | |
2483 | } | |
2484 | asym->section = & v850_elf_tcom_section; | |
2485 | asym->value = elfsym->internal_elf_sym.st_size; | |
2486 | break; | |
2487 | ||
2488 | case SHN_V850_ZCOMMON: | |
2489 | if (v850_elf_zcom_section.name == NULL) | |
2490 | { | |
2491 | /* Initialize the zcommon section. */ | |
2492 | v850_elf_zcom_section.name = ".zcommon"; | |
2493 | v850_elf_zcom_section.flags = SEC_IS_COMMON; | |
2494 | v850_elf_zcom_section.output_section = & v850_elf_zcom_section; | |
2495 | v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; | |
2496 | v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; | |
2497 | v850_elf_zcom_symbol.name = ".zcommon"; | |
2498 | v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; | |
2499 | v850_elf_zcom_symbol.section = & v850_elf_zcom_section; | |
2500 | v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; | |
2501 | } | |
2502 | asym->section = & v850_elf_zcom_section; | |
2503 | asym->value = elfsym->internal_elf_sym.st_size; | |
2504 | break; | |
2505 | } | |
2506 | } | |
2507 | ||
2508 | /* Hook called by the linker routine which adds symbols from an object | |
2509 | file. We must handle the special v850 section numbers here. */ | |
2510 | ||
b34976b6 | 2511 | static bfd_boolean |
47b0e7ad NC |
2512 | v850_elf_add_symbol_hook (bfd *abfd, |
2513 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2514 | Elf_Internal_Sym *sym, | |
2515 | const char **namep ATTRIBUTE_UNUSED, | |
2516 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2517 | asection **secp, | |
2518 | bfd_vma *valp) | |
252b5132 | 2519 | { |
9ad5cbcf | 2520 | unsigned int indx = sym->st_shndx; |
435b1e90 | 2521 | |
252b5132 RH |
2522 | /* If the section index is an "ordinary" index, then it may |
2523 | refer to a v850 specific section created by the assembler. | |
2524 | Check the section's type and change the index it matches. | |
435b1e90 | 2525 | |
252b5132 | 2526 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2527 | |
9ad5cbcf | 2528 | if (indx < elf_numsections (abfd)) |
1cd986c5 | 2529 | switch (elf_elfsections (abfd)[indx]->sh_type) |
252b5132 RH |
2530 | { |
2531 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2532 | indx = SHN_V850_SCOMMON; |
252b5132 | 2533 | break; |
435b1e90 | 2534 | |
252b5132 | 2535 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2536 | indx = SHN_V850_TCOMMON; |
252b5132 | 2537 | break; |
435b1e90 | 2538 | |
252b5132 | 2539 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2540 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2541 | break; |
435b1e90 | 2542 | |
252b5132 RH |
2543 | default: |
2544 | break; | |
2545 | } | |
435b1e90 | 2546 | |
9ad5cbcf | 2547 | switch (indx) |
252b5132 RH |
2548 | { |
2549 | case SHN_V850_SCOMMON: | |
2550 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
2551 | (*secp)->flags |= SEC_IS_COMMON; | |
2552 | *valp = sym->st_size; | |
2553 | break; | |
435b1e90 | 2554 | |
252b5132 RH |
2555 | case SHN_V850_TCOMMON: |
2556 | *secp = bfd_make_section_old_way (abfd, ".tcommon"); | |
2557 | (*secp)->flags |= SEC_IS_COMMON; | |
2558 | *valp = sym->st_size; | |
2559 | break; | |
435b1e90 | 2560 | |
252b5132 RH |
2561 | case SHN_V850_ZCOMMON: |
2562 | *secp = bfd_make_section_old_way (abfd, ".zcommon"); | |
2563 | (*secp)->flags |= SEC_IS_COMMON; | |
2564 | *valp = sym->st_size; | |
2565 | break; | |
2566 | } | |
2567 | ||
b34976b6 | 2568 | return TRUE; |
252b5132 RH |
2569 | } |
2570 | ||
6e0b88f1 | 2571 | static int |
47b0e7ad NC |
2572 | v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2573 | const char *name ATTRIBUTE_UNUSED, | |
2574 | Elf_Internal_Sym *sym, | |
2575 | asection *input_sec, | |
3dd2d30b | 2576 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) |
252b5132 RH |
2577 | { |
2578 | /* If we see a common symbol, which implies a relocatable link, then | |
2579 | if a symbol was in a special common section in an input file, mark | |
2580 | it as a special common in the output file. */ | |
435b1e90 | 2581 | |
252b5132 RH |
2582 | if (sym->st_shndx == SHN_COMMON) |
2583 | { | |
2584 | if (strcmp (input_sec->name, ".scommon") == 0) | |
2585 | sym->st_shndx = SHN_V850_SCOMMON; | |
2586 | else if (strcmp (input_sec->name, ".tcommon") == 0) | |
2587 | sym->st_shndx = SHN_V850_TCOMMON; | |
2588 | else if (strcmp (input_sec->name, ".zcommon") == 0) | |
2589 | sym->st_shndx = SHN_V850_ZCOMMON; | |
2590 | } | |
2591 | ||
d4c87fc1 AM |
2592 | /* The price we pay for using h->other unused bits as flags in the |
2593 | linker is cleaning up after ourselves. */ | |
3dd2d30b AM |
2594 | |
2595 | sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA | |
2596 | | V850_OTHER_ERROR); | |
d4c87fc1 | 2597 | |
6e0b88f1 | 2598 | return 1; |
252b5132 RH |
2599 | } |
2600 | ||
b34976b6 | 2601 | static bfd_boolean |
6dc132d9 L |
2602 | v850_elf_section_from_shdr (bfd *abfd, |
2603 | Elf_Internal_Shdr *hdr, | |
2604 | const char *name, | |
2605 | int shindex) | |
252b5132 RH |
2606 | { |
2607 | /* There ought to be a place to keep ELF backend specific flags, but | |
2608 | at the moment there isn't one. We just keep track of the | |
2609 | sections by their name, instead. */ | |
2610 | ||
6dc132d9 | 2611 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 2612 | return FALSE; |
252b5132 RH |
2613 | |
2614 | switch (hdr->sh_type) | |
2615 | { | |
2616 | case SHT_V850_SCOMMON: | |
2617 | case SHT_V850_TCOMMON: | |
2618 | case SHT_V850_ZCOMMON: | |
2619 | if (! bfd_set_section_flags (abfd, hdr->bfd_section, | |
2620 | (bfd_get_section_flags (abfd, | |
2621 | hdr->bfd_section) | |
2622 | | SEC_IS_COMMON))) | |
b34976b6 | 2623 | return FALSE; |
252b5132 RH |
2624 | } |
2625 | ||
b34976b6 | 2626 | return TRUE; |
252b5132 RH |
2627 | } |
2628 | ||
e12dd2ea NC |
2629 | /* Set the correct type for a V850 ELF section. We do this |
2630 | by the section name, which is a hack, but ought to work. */ | |
2631 | ||
b34976b6 | 2632 | static bfd_boolean |
47b0e7ad NC |
2633 | v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
2634 | Elf_Internal_Shdr *hdr, | |
2635 | asection *sec) | |
252b5132 | 2636 | { |
47b0e7ad | 2637 | const char * name; |
252b5132 RH |
2638 | |
2639 | name = bfd_get_section_name (abfd, sec); | |
2640 | ||
2641 | if (strcmp (name, ".scommon") == 0) | |
47b0e7ad | 2642 | hdr->sh_type = SHT_V850_SCOMMON; |
252b5132 | 2643 | else if (strcmp (name, ".tcommon") == 0) |
47b0e7ad | 2644 | hdr->sh_type = SHT_V850_TCOMMON; |
252b5132 RH |
2645 | else if (strcmp (name, ".zcommon") == 0) |
2646 | hdr->sh_type = SHT_V850_ZCOMMON; | |
435b1e90 | 2647 | |
b34976b6 | 2648 | return TRUE; |
252b5132 | 2649 | } |
86aba9db NC |
2650 | |
2651 | /* Delete some bytes from a section while relaxing. */ | |
2652 | ||
b34976b6 | 2653 | static bfd_boolean |
47b0e7ad NC |
2654 | v850_elf_relax_delete_bytes (bfd *abfd, |
2655 | asection *sec, | |
2656 | bfd_vma addr, | |
2657 | bfd_vma toaddr, | |
2658 | int count) | |
86aba9db | 2659 | { |
b34976b6 AM |
2660 | Elf_Internal_Shdr *symtab_hdr; |
2661 | Elf32_External_Sym *extsyms; | |
2662 | Elf32_External_Sym *esym; | |
2663 | Elf32_External_Sym *esymend; | |
91d6fa6a | 2664 | int sym_index; |
b34976b6 AM |
2665 | unsigned int sec_shndx; |
2666 | bfd_byte *contents; | |
2667 | Elf_Internal_Rela *irel; | |
2668 | Elf_Internal_Rela *irelend; | |
2669 | struct elf_link_hash_entry *sym_hash; | |
2670 | Elf_Internal_Shdr *shndx_hdr; | |
2671 | Elf_External_Sym_Shndx *shndx; | |
86aba9db NC |
2672 | |
2673 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2674 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
2675 | ||
2676 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
2677 | ||
2678 | contents = elf_section_data (sec)->this_hdr.contents; | |
2679 | ||
2680 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
2681 | power larger than the number of bytes we are deleting. */ | |
2682 | ||
2683 | /* Actually delete the bytes. */ | |
2684 | #if (DEBUG_RELAX & 2) | |
2685 | fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n", | |
2686 | sec->name, addr, toaddr, count ); | |
2687 | #endif | |
2688 | memmove (contents + addr, contents + addr + count, | |
2689 | toaddr - addr - count); | |
2690 | memset (contents + toaddr-count, 0, count); | |
2691 | ||
2692 | /* Adjust all the relocs. */ | |
2693 | irel = elf_section_data (sec)->relocs; | |
2694 | irelend = irel + sec->reloc_count; | |
2695 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
2696 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
2697 | ||
2698 | for (; irel < irelend; irel++) | |
2699 | { | |
2700 | bfd_vma raddr, paddr, symval; | |
2701 | Elf_Internal_Sym isym; | |
2702 | ||
2703 | /* Get the new reloc address. */ | |
2704 | raddr = irel->r_offset; | |
2705 | if ((raddr >= (addr + count) && raddr < toaddr)) | |
b34976b6 | 2706 | irel->r_offset -= count; |
86aba9db NC |
2707 | |
2708 | if (raddr >= addr && raddr < addr + count) | |
2709 | { | |
2710 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2711 | (int) R_V850_NONE); | |
2712 | continue; | |
2713 | } | |
b34976b6 | 2714 | |
86aba9db NC |
2715 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN) |
2716 | continue; | |
2717 | ||
2718 | bfd_elf32_swap_symbol_in (abfd, | |
2719 | extsyms + ELF32_R_SYM (irel->r_info), | |
2720 | shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL, | |
2721 | & isym); | |
b34976b6 | 2722 | |
86aba9db NC |
2723 | if (isym.st_shndx != sec_shndx) |
2724 | continue; | |
2725 | ||
2726 | /* Get the value of the symbol referred to by the reloc. */ | |
2727 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
2728 | { | |
2729 | symval = isym.st_value; | |
2730 | #if (DEBUG_RELAX & 2) | |
2731 | { | |
2732 | char * name = bfd_elf_string_from_elf_section | |
2733 | (abfd, symtab_hdr->sh_link, isym.st_name); | |
2734 | fprintf (stderr, | |
2735 | "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
2736 | sec->name, name, isym.st_name, | |
2737 | sec->output_section->vma, sec->output_offset, | |
2738 | isym.st_value, irel->r_addend); | |
2739 | } | |
2740 | #endif | |
2741 | } | |
2742 | else | |
2743 | { | |
2744 | unsigned long indx; | |
2745 | struct elf_link_hash_entry * h; | |
2746 | ||
2747 | /* An external symbol. */ | |
2748 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2749 | ||
2750 | h = elf_sym_hashes (abfd) [indx]; | |
2751 | BFD_ASSERT (h != NULL); | |
2752 | ||
2753 | symval = h->root.u.def.value; | |
2754 | #if (DEBUG_RELAX & 2) | |
2755 | fprintf (stderr, | |
2756 | "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
2757 | sec->name, h->root.root.string, h->root.u.def.value, | |
2758 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
2759 | #endif | |
2760 | } | |
b34976b6 | 2761 | |
86aba9db | 2762 | paddr = symval + irel->r_addend; |
b34976b6 | 2763 | |
86aba9db NC |
2764 | if ( (symval >= addr + count && symval < toaddr) |
2765 | && (paddr < addr + count || paddr >= toaddr)) | |
2766 | irel->r_addend += count; | |
2767 | else if ( (symval < addr + count || symval >= toaddr) | |
2768 | && (paddr >= addr + count && paddr < toaddr)) | |
2769 | irel->r_addend -= count; | |
2770 | } | |
2771 | ||
2772 | /* Adjust the local symbols defined in this section. */ | |
2773 | esym = extsyms; | |
2774 | esymend = esym + symtab_hdr->sh_info; | |
2775 | ||
2776 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) | |
2777 | { | |
2778 | Elf_Internal_Sym isym; | |
2779 | ||
2780 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
2781 | ||
2782 | if (isym.st_shndx == sec_shndx | |
2783 | && isym.st_value >= addr + count | |
2784 | && isym.st_value < toaddr) | |
2785 | { | |
2786 | isym.st_value -= count; | |
2787 | ||
2788 | if (isym.st_value + isym.st_size >= toaddr) | |
b34976b6 AM |
2789 | isym.st_size += count; |
2790 | ||
63a23799 | 2791 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2792 | } |
2793 | else if (isym.st_shndx == sec_shndx | |
2794 | && isym.st_value < addr + count) | |
2795 | { | |
2796 | if (isym.st_value+isym.st_size >= addr + count | |
2797 | && isym.st_value+isym.st_size < toaddr) | |
2798 | isym.st_size -= count; | |
2799 | ||
2800 | if (isym.st_value >= addr | |
2801 | && isym.st_value < addr + count) | |
2802 | isym.st_value = addr; | |
2803 | ||
63a23799 | 2804 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2805 | } |
2806 | } | |
2807 | ||
2808 | /* Now adjust the global symbols defined in this section. */ | |
2809 | esym = extsyms + symtab_hdr->sh_info; | |
2810 | esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); | |
2811 | ||
91d6fa6a | 2812 | for (sym_index = 0; esym < esymend; esym ++, sym_index ++) |
86aba9db NC |
2813 | { |
2814 | Elf_Internal_Sym isym; | |
2815 | ||
2816 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
91d6fa6a | 2817 | sym_hash = elf_sym_hashes (abfd) [sym_index]; |
86aba9db NC |
2818 | |
2819 | if (isym.st_shndx == sec_shndx | |
2820 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2821 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2822 | && (sym_hash)->root.u.def.section == sec | |
2823 | && (sym_hash)->root.u.def.value >= addr + count | |
2824 | && (sym_hash)->root.u.def.value < toaddr) | |
2825 | { | |
2826 | if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr) | |
2827 | { | |
2828 | isym.st_size += count; | |
63a23799 | 2829 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2830 | } |
2831 | ||
2832 | (sym_hash)->root.u.def.value -= count; | |
2833 | } | |
2834 | else if (isym.st_shndx == sec_shndx | |
2835 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2836 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2837 | && (sym_hash)->root.u.def.section == sec | |
2838 | && (sym_hash)->root.u.def.value < addr + count) | |
2839 | { | |
2840 | if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count | |
2841 | && (sym_hash)->root.u.def.value+isym.st_size < toaddr) | |
2842 | isym.st_size -= count; | |
2843 | ||
2844 | if ((sym_hash)->root.u.def.value >= addr | |
2845 | && (sym_hash)->root.u.def.value < addr + count) | |
2846 | (sym_hash)->root.u.def.value = addr; | |
2847 | ||
63a23799 | 2848 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2849 | } |
2850 | ||
2851 | if (shndx) | |
2852 | ++ shndx; | |
2853 | } | |
2854 | ||
b34976b6 | 2855 | return TRUE; |
86aba9db NC |
2856 | } |
2857 | ||
2858 | #define NOP_OPCODE (0x0000) | |
1cd986c5 | 2859 | #define MOVHI 0x0640 /* 4byte. */ |
86aba9db | 2860 | #define MOVHI_MASK 0x07e0 |
1cd986c5 | 2861 | #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */ |
86aba9db | 2862 | #define MOVHI_R2(insn) ((insn) >> 11) |
1cd986c5 | 2863 | #define MOVEA 0x0620 /* 2byte. */ |
86aba9db NC |
2864 | #define MOVEA_MASK 0x07e0 |
2865 | #define MOVEA_R1(insn) ((insn) & 0x1f) | |
2866 | #define MOVEA_R2(insn) ((insn) >> 11) | |
1cd986c5 | 2867 | #define JARL_4 0x00040780 /* 4byte. */ |
86aba9db NC |
2868 | #define JARL_4_MASK 0xFFFF07FF |
2869 | #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11) | |
1cd986c5 | 2870 | #define ADD_I 0x0240 /* 2byte. */ |
86aba9db | 2871 | #define ADD_I_MASK 0x07e0 |
1cd986c5 | 2872 | #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */ |
86aba9db | 2873 | #define ADD_R2(insn) ((insn) >> 11) |
1cd986c5 | 2874 | #define JMP_R 0x0060 /* 2byte. */ |
86aba9db NC |
2875 | #define JMP_R_MASK 0xFFE0 |
2876 | #define JMP_R1(insn) ((insn) & 0x1f) | |
2877 | ||
b34976b6 | 2878 | static bfd_boolean |
47b0e7ad NC |
2879 | v850_elf_relax_section (bfd *abfd, |
2880 | asection *sec, | |
2881 | struct bfd_link_info *link_info, | |
2882 | bfd_boolean *again) | |
86aba9db | 2883 | { |
b34976b6 AM |
2884 | Elf_Internal_Shdr *symtab_hdr; |
2885 | Elf_Internal_Rela *internal_relocs; | |
2886 | Elf_Internal_Rela *irel; | |
2887 | Elf_Internal_Rela *irelend; | |
2888 | Elf_Internal_Rela *irelalign = NULL; | |
2889 | Elf_Internal_Sym *isymbuf = NULL; | |
2890 | bfd_byte *contents = NULL; | |
2891 | bfd_vma addr = 0; | |
2892 | bfd_vma toaddr; | |
2893 | int align_pad_size = 0; | |
2894 | bfd_boolean result = TRUE; | |
2895 | ||
2896 | *again = FALSE; | |
86aba9db | 2897 | |
1049f94e | 2898 | if (link_info->relocatable |
86aba9db NC |
2899 | || (sec->flags & SEC_RELOC) == 0 |
2900 | || sec->reloc_count == 0) | |
b34976b6 | 2901 | return TRUE; |
86aba9db | 2902 | |
86aba9db NC |
2903 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2904 | ||
45d6a902 | 2905 | internal_relocs = (_bfd_elf_link_read_relocs |
47b0e7ad | 2906 | (abfd, sec, NULL, NULL, link_info->keep_memory)); |
86aba9db NC |
2907 | if (internal_relocs == NULL) |
2908 | goto error_return; | |
86aba9db NC |
2909 | |
2910 | irelend = internal_relocs + sec->reloc_count; | |
b34976b6 | 2911 | |
eea6121a | 2912 | while (addr < sec->size) |
86aba9db | 2913 | { |
eea6121a | 2914 | toaddr = sec->size; |
86aba9db NC |
2915 | |
2916 | for (irel = internal_relocs; irel < irelend; irel ++) | |
2917 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
2918 | && irel->r_offset > addr | |
2919 | && irel->r_offset < toaddr) | |
2920 | toaddr = irel->r_offset; | |
b34976b6 | 2921 | |
86aba9db NC |
2922 | #ifdef DEBUG_RELAX |
2923 | fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n", | |
2924 | addr, toaddr, align_pad_size); | |
2925 | #endif | |
2926 | if (irelalign) | |
2927 | { | |
2928 | bfd_vma alignto; | |
2929 | bfd_vma alignmoveto; | |
2930 | ||
2931 | alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend); | |
2932 | alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend); | |
2933 | ||
2934 | if (alignmoveto < alignto) | |
2935 | { | |
2936 | unsigned int i; | |
2937 | ||
2938 | align_pad_size = alignto - alignmoveto; | |
2939 | #ifdef DEBUG_RELAX | |
2940 | fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n", | |
2941 | alignmoveto, toaddr, align_pad_size); | |
2942 | #endif | |
2943 | if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto, | |
2944 | toaddr, align_pad_size)) | |
b34976b6 | 2945 | goto error_return; |
86aba9db NC |
2946 | |
2947 | for (i = BFD_ALIGN (toaddr - align_pad_size, 1); | |
2948 | (i + 1) < toaddr; i += 2) | |
2949 | bfd_put_16 (abfd, NOP_OPCODE, contents + i); | |
2950 | ||
2951 | addr = alignmoveto; | |
2952 | } | |
2953 | else | |
2954 | align_pad_size = 0; | |
2955 | } | |
2956 | ||
2957 | for (irel = internal_relocs; irel < irelend; irel++) | |
2958 | { | |
b34976b6 AM |
2959 | bfd_vma laddr; |
2960 | bfd_vma addend; | |
2961 | bfd_vma symval; | |
2962 | int insn[5]; | |
2963 | int no_match = -1; | |
2964 | Elf_Internal_Rela *hi_irelfn; | |
2965 | Elf_Internal_Rela *lo_irelfn; | |
2966 | Elf_Internal_Rela *irelcall; | |
2967 | bfd_signed_vma foff; | |
86aba9db NC |
2968 | |
2969 | if (! (irel->r_offset >= addr && irel->r_offset < toaddr | |
2970 | && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL | |
2971 | || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP))) | |
2972 | continue; | |
2973 | ||
2974 | #ifdef DEBUG_RELAX | |
2975 | fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n", | |
2976 | irel->r_info, | |
2977 | irel->r_offset, | |
2978 | irel->r_addend ); | |
2979 | #endif | |
2980 | ||
2981 | /* Get the section contents. */ | |
2982 | if (contents == NULL) | |
2983 | { | |
2984 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2985 | contents = elf_section_data (sec)->this_hdr.contents; | |
2986 | else | |
2987 | { | |
47b0e7ad | 2988 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) |
86aba9db NC |
2989 | goto error_return; |
2990 | } | |
2991 | } | |
2992 | ||
5cec6941 NC |
2993 | /* Read this BFD's local symbols if we haven't done so already. */ |
2994 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) | |
86aba9db | 2995 | { |
5cec6941 NC |
2996 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2997 | if (isymbuf == NULL) | |
2998 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2999 | symtab_hdr->sh_info, 0, | |
3000 | NULL, NULL, NULL); | |
3001 | if (isymbuf == NULL) | |
3002 | goto error_return; | |
86aba9db NC |
3003 | } |
3004 | ||
3005 | laddr = irel->r_offset; | |
3006 | ||
3007 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL) | |
3008 | { | |
3009 | /* Check code for -mlong-calls output. */ | |
eea6121a | 3010 | if (laddr + 16 <= (bfd_vma) sec->size) |
86aba9db NC |
3011 | { |
3012 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
3013 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
3014 | insn[2] = bfd_get_32 (abfd, contents + laddr + 8); | |
3015 | insn[3] = bfd_get_16 (abfd, contents + laddr + 12); | |
3016 | insn[4] = bfd_get_16 (abfd, contents + laddr + 14); | |
b34976b6 | 3017 | |
86aba9db NC |
3018 | if ((insn[0] & MOVHI_MASK) != MOVHI |
3019 | || MOVHI_R1 (insn[0]) != 0) | |
3020 | no_match = 0; | |
3021 | ||
3022 | if (no_match < 0 | |
3023 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
3024 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
3025 | no_match = 1; | |
3026 | ||
3027 | if (no_match < 0 | |
3028 | && (insn[2] & JARL_4_MASK) != JARL_4) | |
3029 | no_match = 2; | |
3030 | ||
3031 | if (no_match < 0 | |
3032 | && ((insn[3] & ADD_I_MASK) != ADD_I | |
3033 | || ADD_I5 (insn[3]) != 4 | |
3034 | || JARL_R2 (insn[2]) != ADD_R2 (insn[3]))) | |
3035 | no_match = 3; | |
3036 | ||
3037 | if (no_match < 0 | |
3038 | && ((insn[4] & JMP_R_MASK) != JMP_R | |
3039 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4]))) | |
3040 | no_match = 4; | |
3041 | } | |
3042 | else | |
3043 | { | |
3044 | ((*_bfd_error_handler) | |
3045 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns", | |
3046 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
3047 | ||
3048 | continue; | |
3049 | } | |
3050 | ||
3051 | if (no_match >= 0) | |
3052 | { | |
3053 | ((*_bfd_error_handler) | |
3054 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x", | |
3055 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
3056 | ||
3057 | continue; | |
b34976b6 | 3058 | } |
86aba9db NC |
3059 | |
3060 | /* Get the reloc for the address from which the register is | |
3061 | being loaded. This reloc will tell us which function is | |
3062 | actually being called. */ | |
3063 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
3064 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 3065 | && ELF32_R_TYPE (hi_irelfn->r_info) |
86aba9db NC |
3066 | == (int) R_V850_HI16_S) |
3067 | break; | |
3068 | ||
3069 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
3070 | if (lo_irelfn->r_offset == laddr + 6 | |
3071 | && ELF32_R_TYPE (lo_irelfn->r_info) | |
3072 | == (int) R_V850_LO16) | |
3073 | break; | |
3074 | ||
3075 | for (irelcall = internal_relocs; irelcall < irelend; irelcall ++) | |
3076 | if (irelcall->r_offset == laddr + 8 | |
3077 | && ELF32_R_TYPE (irelcall->r_info) | |
3078 | == (int) R_V850_22_PCREL) | |
3079 | break; | |
3080 | ||
3081 | if ( hi_irelfn == irelend | |
3082 | || lo_irelfn == irelend | |
3083 | || irelcall == irelend) | |
3084 | { | |
3085 | ((*_bfd_error_handler) | |
3086 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc", | |
3087 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
3088 | ||
3089 | continue; | |
3090 | } | |
b34976b6 | 3091 | |
86aba9db NC |
3092 | if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info) |
3093 | { | |
5cec6941 | 3094 | Elf_Internal_Sym * isym; |
86aba9db NC |
3095 | |
3096 | /* A local symbol. */ | |
5cec6941 | 3097 | isym = isymbuf + ELF32_R_SYM (irelcall->r_info); |
86aba9db | 3098 | |
5cec6941 | 3099 | symval = isym->st_value; |
86aba9db NC |
3100 | } |
3101 | else | |
3102 | { | |
3103 | unsigned long indx; | |
3104 | struct elf_link_hash_entry * h; | |
3105 | ||
3106 | /* An external symbol. */ | |
3107 | indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info; | |
3108 | h = elf_sym_hashes (abfd)[indx]; | |
3109 | BFD_ASSERT (h != NULL); | |
3110 | ||
3111 | if ( h->root.type != bfd_link_hash_defined | |
3112 | && h->root.type != bfd_link_hash_defweak) | |
3113 | /* This appears to be a reference to an undefined | |
3114 | symbol. Just ignore it--it will be caught by the | |
3115 | regular reloc processing. */ | |
3116 | continue; | |
3117 | ||
3118 | symval = h->root.u.def.value; | |
3119 | } | |
3120 | ||
3121 | if (symval + irelcall->r_addend != irelcall->r_offset + 4) | |
3122 | { | |
3123 | ((*_bfd_error_handler) | |
3124 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx", | |
3125 | bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset )); | |
3126 | ||
3127 | continue; | |
3128 | } | |
3129 | ||
3130 | /* Get the value of the symbol referred to by the reloc. */ | |
3131 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3132 | { | |
b34976b6 AM |
3133 | Elf_Internal_Sym *isym; |
3134 | asection *sym_sec; | |
86aba9db NC |
3135 | |
3136 | /* A local symbol. */ | |
5cec6941 | 3137 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
b34976b6 | 3138 | |
5cec6941 | 3139 | if (isym->st_shndx == SHN_UNDEF) |
86aba9db | 3140 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 3141 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 3142 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 3143 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
3144 | sym_sec = bfd_com_section_ptr; |
3145 | else | |
5cec6941 NC |
3146 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
3147 | symval = (isym->st_value | |
86aba9db NC |
3148 | + sym_sec->output_section->vma |
3149 | + sym_sec->output_offset); | |
3150 | } | |
3151 | else | |
3152 | { | |
3153 | unsigned long indx; | |
b34976b6 | 3154 | struct elf_link_hash_entry *h; |
86aba9db NC |
3155 | |
3156 | /* An external symbol. */ | |
5cec6941 | 3157 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
86aba9db NC |
3158 | h = elf_sym_hashes (abfd)[indx]; |
3159 | BFD_ASSERT (h != NULL); | |
3160 | ||
3161 | if ( h->root.type != bfd_link_hash_defined | |
3162 | && h->root.type != bfd_link_hash_defweak) | |
3163 | /* This appears to be a reference to an undefined | |
3164 | symbol. Just ignore it--it will be caught by the | |
3165 | regular reloc processing. */ | |
3166 | continue; | |
3167 | ||
3168 | symval = (h->root.u.def.value | |
3169 | + h->root.u.def.section->output_section->vma | |
3170 | + h->root.u.def.section->output_offset); | |
3171 | } | |
3172 | ||
3173 | addend = irel->r_addend; | |
3174 | ||
3175 | foff = (symval + addend | |
3176 | - (irel->r_offset | |
3177 | + sec->output_section->vma | |
3178 | + sec->output_offset | |
3179 | + 4)); | |
3180 | #ifdef DEBUG_RELAX | |
3181 | fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
3182 | irel->r_offset, | |
3183 | (irel->r_offset | |
3184 | + sec->output_section->vma | |
3185 | + sec->output_offset), | |
3186 | symval, addend, foff); | |
3187 | #endif | |
3188 | ||
3189 | if (foff < -0x100000 || foff >= 0x100000) | |
3190 | /* After all that work, we can't shorten this function call. */ | |
3191 | continue; | |
3192 | ||
3193 | /* For simplicity of coding, we are going to modify the section | |
3194 | contents, the section relocs, and the BFD symbol table. We | |
3195 | must tell the rest of the code not to free up this | |
3196 | information. It would be possible to instead create a table | |
3197 | of changes which have to be made, as is done in coff-mips.c; | |
3198 | that would be more work, but would require less memory when | |
3199 | the linker is run. */ | |
3200 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 3201 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 3202 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
b34976b6 | 3203 | |
86aba9db NC |
3204 | /* Replace the long call with a jarl. */ |
3205 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL); | |
3206 | ||
3207 | addend = 0; | |
3208 | ||
3209 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3210 | /* If this needs to be changed because of future relaxing, | |
3211 | it will be handled here like other internal IND12W | |
3212 | relocs. */ | |
3213 | bfd_put_32 (abfd, | |
3214 | 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf), | |
3215 | contents + irel->r_offset); | |
3216 | else | |
3217 | /* We can't fully resolve this yet, because the external | |
3218 | symbol value may be changed by future relaxing. | |
3219 | We let the final link phase handle it. */ | |
3220 | bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11), | |
3221 | contents + irel->r_offset); | |
3222 | ||
b34976b6 | 3223 | hi_irelfn->r_info = |
86aba9db NC |
3224 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); |
3225 | lo_irelfn->r_info = | |
3226 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3227 | irelcall->r_info = | |
3228 | ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE); | |
3229 | ||
3230 | if (! v850_elf_relax_delete_bytes (abfd, sec, | |
3231 | irel->r_offset + 4, toaddr, 12)) | |
3232 | goto error_return; | |
3233 | ||
3234 | align_pad_size += 12; | |
3235 | } | |
3236 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP) | |
3237 | { | |
3238 | /* Check code for -mlong-jumps output. */ | |
eea6121a | 3239 | if (laddr + 10 <= (bfd_vma) sec->size) |
86aba9db NC |
3240 | { |
3241 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
3242 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
3243 | insn[2] = bfd_get_16 (abfd, contents + laddr + 8); | |
3244 | ||
3245 | if ((insn[0] & MOVHI_MASK) != MOVHI | |
3246 | || MOVHI_R1 (insn[0]) != 0) | |
3247 | no_match = 0; | |
3248 | ||
3249 | if (no_match < 0 | |
3250 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
3251 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
3252 | no_match = 1; | |
3253 | ||
3254 | if (no_match < 0 | |
3255 | && ((insn[2] & JMP_R_MASK) != JMP_R | |
3256 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2]))) | |
3257 | no_match = 4; | |
3258 | } | |
3259 | else | |
3260 | { | |
3261 | ((*_bfd_error_handler) | |
3262 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns", | |
3263 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
3264 | ||
3265 | continue; | |
3266 | } | |
3267 | ||
3268 | if (no_match >= 0) | |
3269 | { | |
3270 | ((*_bfd_error_handler) | |
3271 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x", | |
3272 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
3273 | ||
3274 | continue; | |
3275 | } | |
3276 | ||
3277 | /* Get the reloc for the address from which the register is | |
3278 | being loaded. This reloc will tell us which function is | |
3279 | actually being called. */ | |
3280 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
3281 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 3282 | && ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S) |
86aba9db NC |
3283 | break; |
3284 | ||
3285 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
3286 | if (lo_irelfn->r_offset == laddr + 6 | |
3287 | && ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16) | |
3288 | break; | |
3289 | ||
3290 | if ( hi_irelfn == irelend | |
3291 | || lo_irelfn == irelend) | |
3292 | { | |
3293 | ((*_bfd_error_handler) | |
3294 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc", | |
3295 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
3296 | ||
3297 | continue; | |
3298 | } | |
b34976b6 | 3299 | |
86aba9db NC |
3300 | /* Get the value of the symbol referred to by the reloc. */ |
3301 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3302 | { | |
5cec6941 NC |
3303 | Elf_Internal_Sym * isym; |
3304 | asection * sym_sec; | |
86aba9db NC |
3305 | |
3306 | /* A local symbol. */ | |
5cec6941 NC |
3307 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
3308 | ||
3309 | if (isym->st_shndx == SHN_UNDEF) | |
86aba9db | 3310 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 3311 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 3312 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 3313 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
3314 | sym_sec = bfd_com_section_ptr; |
3315 | else | |
5cec6941 NC |
3316 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
3317 | symval = (isym->st_value | |
86aba9db NC |
3318 | + sym_sec->output_section->vma |
3319 | + sym_sec->output_offset); | |
3320 | #ifdef DEBUG_RELAX | |
3321 | { | |
3322 | char * name = bfd_elf_string_from_elf_section | |
5cec6941 | 3323 | (abfd, symtab_hdr->sh_link, isym->st_name); |
86aba9db NC |
3324 | |
3325 | fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
5cec6941 NC |
3326 | sym_sec->name, name, isym->st_name, |
3327 | sym_sec->output_section->vma, | |
3328 | sym_sec->output_offset, | |
3329 | isym->st_value, irel->r_addend); | |
86aba9db NC |
3330 | } |
3331 | #endif | |
3332 | } | |
3333 | else | |
3334 | { | |
3335 | unsigned long indx; | |
3336 | struct elf_link_hash_entry * h; | |
3337 | ||
3338 | /* An external symbol. */ | |
3339 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
3340 | h = elf_sym_hashes (abfd)[indx]; | |
3341 | BFD_ASSERT (h != NULL); | |
3342 | ||
3343 | if ( h->root.type != bfd_link_hash_defined | |
3344 | && h->root.type != bfd_link_hash_defweak) | |
3345 | /* This appears to be a reference to an undefined | |
3346 | symbol. Just ignore it--it will be caught by the | |
3347 | regular reloc processing. */ | |
3348 | continue; | |
3349 | ||
3350 | symval = (h->root.u.def.value | |
3351 | + h->root.u.def.section->output_section->vma | |
3352 | + h->root.u.def.section->output_offset); | |
3353 | #ifdef DEBUG_RELAX | |
3354 | fprintf (stderr, | |
3355 | "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
3356 | sec->name, h->root.root.string, h->root.u.def.value, | |
3357 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
3358 | #endif | |
3359 | } | |
3360 | ||
3361 | addend = irel->r_addend; | |
3362 | ||
3363 | foff = (symval + addend | |
3364 | - (irel->r_offset | |
3365 | + sec->output_section->vma | |
3366 | + sec->output_offset | |
3367 | + 4)); | |
3368 | #ifdef DEBUG_RELAX | |
3369 | fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
3370 | irel->r_offset, | |
3371 | (irel->r_offset | |
3372 | + sec->output_section->vma | |
3373 | + sec->output_offset), | |
3374 | symval, addend, foff); | |
3375 | #endif | |
3376 | if (foff < -0x100000 || foff >= 0x100000) | |
3377 | /* After all that work, we can't shorten this function call. */ | |
3378 | continue; | |
3379 | ||
3380 | /* For simplicity of coding, we are going to modify the section | |
3381 | contents, the section relocs, and the BFD symbol table. We | |
3382 | must tell the rest of the code not to free up this | |
3383 | information. It would be possible to instead create a table | |
3384 | of changes which have to be made, as is done in coff-mips.c; | |
3385 | that would be more work, but would require less memory when | |
3386 | the linker is run. */ | |
3387 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 3388 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 3389 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
86aba9db NC |
3390 | |
3391 | if (foff < -0x100 || foff >= 0x100) | |
3392 | { | |
3393 | /* Replace the long jump with a jr. */ | |
3394 | ||
3395 | irel->r_info = | |
b34976b6 AM |
3396 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL); |
3397 | ||
86aba9db NC |
3398 | irel->r_addend = addend; |
3399 | addend = 0; | |
3400 | ||
3401 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3402 | /* If this needs to be changed because of future relaxing, | |
3403 | it will be handled here like other internal IND12W | |
3404 | relocs. */ | |
3405 | bfd_put_32 (abfd, | |
3406 | 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf), | |
3407 | contents + irel->r_offset); | |
3408 | else | |
3409 | /* We can't fully resolve this yet, because the external | |
3410 | symbol value may be changed by future relaxing. | |
3411 | We let the final link phase handle it. */ | |
3412 | bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset); | |
3413 | ||
3414 | hi_irelfn->r_info = | |
3415 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3416 | lo_irelfn->r_info = | |
3417 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3418 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3419 | irel->r_offset + 4, toaddr, 6)) | |
3420 | goto error_return; | |
3421 | ||
3422 | align_pad_size += 6; | |
3423 | } | |
3424 | else | |
3425 | { | |
3426 | /* Replace the long jump with a br. */ | |
3427 | ||
3428 | irel->r_info = | |
3429 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL); | |
3430 | ||
3431 | irel->r_addend = addend; | |
3432 | addend = 0; | |
3433 | ||
3434 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3435 | /* If this needs to be changed because of future relaxing, | |
3436 | it will be handled here like other internal IND12W | |
3437 | relocs. */ | |
3438 | bfd_put_16 (abfd, | |
3439 | 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070), | |
3440 | contents + irel->r_offset); | |
3441 | else | |
3442 | /* We can't fully resolve this yet, because the external | |
3443 | symbol value may be changed by future relaxing. | |
3444 | We let the final link phase handle it. */ | |
3445 | bfd_put_16 (abfd, 0x0585, contents + irel->r_offset); | |
3446 | ||
3447 | hi_irelfn->r_info = | |
3448 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3449 | lo_irelfn->r_info = | |
3450 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3451 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3452 | irel->r_offset + 2, toaddr, 8)) | |
3453 | goto error_return; | |
3454 | ||
3455 | align_pad_size += 8; | |
3456 | } | |
3457 | } | |
3458 | } | |
3459 | ||
3460 | irelalign = NULL; | |
3461 | for (irel = internal_relocs; irel < irelend; irel++) | |
3462 | { | |
3463 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
3464 | && irel->r_offset == toaddr) | |
3465 | { | |
3466 | irel->r_offset -= align_pad_size; | |
3467 | ||
3468 | if (irelalign == NULL || irelalign->r_addend > irel->r_addend) | |
3469 | irelalign = irel; | |
3470 | } | |
3471 | } | |
3472 | ||
3473 | addr = toaddr; | |
3474 | } | |
3475 | ||
3476 | if (!irelalign) | |
3477 | { | |
3478 | #ifdef DEBUG_RELAX | |
3479 | fprintf (stderr, "relax pad %d shorten %d -> %d\n", | |
3480 | align_pad_size, | |
eea6121a AM |
3481 | sec->size, |
3482 | sec->size - align_pad_size); | |
86aba9db | 3483 | #endif |
eea6121a | 3484 | sec->size -= align_pad_size; |
86aba9db NC |
3485 | } |
3486 | ||
5cec6941 NC |
3487 | finish: |
3488 | if (internal_relocs != NULL | |
3489 | && elf_section_data (sec)->relocs != internal_relocs) | |
3490 | free (internal_relocs); | |
86aba9db | 3491 | |
5cec6941 NC |
3492 | if (contents != NULL |
3493 | && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents) | |
3494 | free (contents); | |
86aba9db | 3495 | |
5cec6941 NC |
3496 | if (isymbuf != NULL |
3497 | && symtab_hdr->contents != (bfd_byte *) isymbuf) | |
3498 | free (isymbuf); | |
86aba9db | 3499 | |
5cec6941 | 3500 | return result; |
86aba9db | 3501 | |
5cec6941 | 3502 | error_return: |
b34976b6 | 3503 | result = FALSE; |
5cec6941 | 3504 | goto finish; |
86aba9db | 3505 | } |
2f89ff8d | 3506 | |
b35d266b | 3507 | static const struct bfd_elf_special_section v850_elf_special_sections[] = |
7f4d3958 | 3508 | { |
0112cd26 NC |
3509 | { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) }, |
3510 | { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3511 | + SHF_EXECINSTR) }, | |
3512 | { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC | |
3513 | + SHF_V850_GPREL) }, | |
3514 | { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC | |
3515 | + SHF_V850_R0REL) }, | |
3516 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3517 | + SHF_V850_GPREL) }, | |
3518 | { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE | |
3519 | + SHF_V850_GPREL) }, | |
3520 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3521 | + SHF_V850_GPREL) }, | |
3522 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3523 | + SHF_V850_EPREL) }, | |
3524 | { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE | |
3525 | + SHF_V850_R0REL) }, | |
3526 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3527 | + SHF_V850_EPREL) }, | |
3528 | { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3529 | + SHF_V850_R0REL) }, | |
3530 | { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE | |
3531 | + SHF_V850_R0REL) }, | |
3532 | { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3533 | + SHF_V850_R0REL) }, | |
3534 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 | 3535 | }; |
252b5132 RH |
3536 | \f |
3537 | #define TARGET_LITTLE_SYM bfd_elf32_v850_vec | |
3538 | #define TARGET_LITTLE_NAME "elf32-v850" | |
3539 | #define ELF_ARCH bfd_arch_v850 | |
aa4f99bb AO |
3540 | #define ELF_MACHINE_CODE EM_V850 |
3541 | #define ELF_MACHINE_ALT1 EM_CYGNUS_V850 | |
46767561 | 3542 | #define ELF_MACHINE_ALT2 EM_V800 /* This is the value used by the GreenHills toolchain. */ |
252b5132 | 3543 | #define ELF_MAXPAGESIZE 0x1000 |
435b1e90 | 3544 | |
252b5132 RH |
3545 | #define elf_info_to_howto v850_elf_info_to_howto_rela |
3546 | #define elf_info_to_howto_rel v850_elf_info_to_howto_rel | |
3547 | ||
3548 | #define elf_backend_check_relocs v850_elf_check_relocs | |
3549 | #define elf_backend_relocate_section v850_elf_relocate_section | |
3550 | #define elf_backend_object_p v850_elf_object_p | |
3551 | #define elf_backend_final_write_processing v850_elf_final_write_processing | |
3552 | #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section | |
3553 | #define elf_backend_symbol_processing v850_elf_symbol_processing | |
3554 | #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook | |
3555 | #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook | |
3556 | #define elf_backend_section_from_shdr v850_elf_section_from_shdr | |
3557 | #define elf_backend_fake_sections v850_elf_fake_sections | |
3558 | #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook | |
29ef7005 | 3559 | #define elf_backend_special_sections v850_elf_special_sections |
252b5132 RH |
3560 | |
3561 | #define elf_backend_can_gc_sections 1 | |
f0fe0e16 | 3562 | #define elf_backend_rela_normal 1 |
252b5132 | 3563 | |
252b5132 RH |
3564 | #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name |
3565 | #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup | |
157090f7 | 3566 | #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup |
252b5132 RH |
3567 | #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data |
3568 | #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags | |
3569 | #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data | |
86aba9db | 3570 | #define bfd_elf32_bfd_relax_section v850_elf_relax_section |
252b5132 RH |
3571 | |
3572 | #define elf_symbol_leading_char '_' | |
3573 | ||
3574 | #include "elf32-target.h" |