Commit | Line | Data |
---|---|---|
01b49cb3 | 1 | /* V850-specific support for 32-bit ELF |
75172c0f | 2 | Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. |
01b49cb3 C |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
90ffe48b JL |
20 | |
21 | ||
22 | /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char | |
23 | dependencies. As is the gas & simulator code or the v850. */ | |
24 | ||
25 | ||
01b49cb3 C |
26 | #include "bfd.h" |
27 | #include "sysdep.h" | |
725b96f5 | 28 | #include "bfdlink.h" |
01b49cb3 C |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
de224d6a | 31 | #include "elf/v850.h" |
01b49cb3 | 32 | |
22a9f052 NC |
33 | /* sign-extend a 24-bit number */ |
34 | #define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000) | |
35 | ||
de224d6a | 36 | static reloc_howto_type *v850_elf_reloc_type_lookup |
01b49cb3 | 37 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); |
de224d6a | 38 | static void v850_elf_info_to_howto_rel |
01b49cb3 | 39 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); |
197de3ba CM |
40 | static void v850_elf_info_to_howto_rela |
41 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); | |
de224d6a | 42 | static bfd_reloc_status_type v850_elf_reloc |
e73b6ae6 | 43 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
8988d935 | 44 | static boolean v850_elf_is_local_label_name PARAMS ((bfd *, const char *)); |
de224d6a MM |
45 | static boolean v850_elf_relocate_section PARAMS((bfd *, |
46 | struct bfd_link_info *, | |
47 | bfd *, | |
48 | asection *, | |
49 | bfd_byte *, | |
50 | Elf_Internal_Rela *, | |
51 | Elf_Internal_Sym *, | |
52 | asection **)); | |
01b49cb3 | 53 | |
def31039 NC |
54 | /* Note: It is REQUIRED that the 'type' value of each entry in this array |
55 | match the index of the entry in the array. */ | |
de224d6a | 56 | static reloc_howto_type v850_elf_howto_table[] = |
01b49cb3 C |
57 | { |
58 | /* This reloc does nothing. */ | |
de224d6a MM |
59 | HOWTO (R_V850_NONE, /* type */ |
60 | 0, /* rightshift */ | |
61 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
62 | 32, /* bitsize */ | |
63 | false, /* pc_relative */ | |
64 | 0, /* bitpos */ | |
65 | complain_overflow_bitfield, /* complain_on_overflow */ | |
66 | bfd_elf_generic_reloc, /* special_function */ | |
67 | "R_V850_NONE", /* name */ | |
68 | false, /* partial_inplace */ | |
69 | 0, /* src_mask */ | |
70 | 0, /* dst_mask */ | |
71 | false), /* pcrel_offset */ | |
01b49cb3 C |
72 | |
73 | /* A PC relative 9 bit branch. */ | |
de224d6a MM |
74 | HOWTO (R_V850_9_PCREL, /* type */ |
75 | 2, /* rightshift */ | |
76 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
77 | 26, /* bitsize */ | |
78 | true, /* pc_relative */ | |
79 | 0, /* bitpos */ | |
80 | complain_overflow_bitfield, /* complain_on_overflow */ | |
81 | v850_elf_reloc, /* special_function */ | |
82 | "R_V850_9_PCREL", /* name */ | |
83 | false, /* partial_inplace */ | |
84 | 0x00ffffff, /* src_mask */ | |
85 | 0x00ffffff, /* dst_mask */ | |
86 | true), /* pcrel_offset */ | |
01b49cb3 C |
87 | |
88 | /* A PC relative 22 bit branch. */ | |
de224d6a MM |
89 | HOWTO (R_V850_22_PCREL, /* type */ |
90 | 2, /* rightshift */ | |
91 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
92 | 22, /* bitsize */ | |
93 | true, /* pc_relative */ | |
94 | 7, /* bitpos */ | |
95 | complain_overflow_signed, /* complain_on_overflow */ | |
96 | v850_elf_reloc, /* special_function */ | |
97 | "R_V850_22_PCREL", /* name */ | |
98 | false, /* partial_inplace */ | |
99 | 0x07ffff80, /* src_mask */ | |
100 | 0x07ffff80, /* dst_mask */ | |
101 | true), /* pcrel_offset */ | |
01b49cb3 C |
102 | |
103 | /* High 16 bits of symbol value. */ | |
de224d6a MM |
104 | HOWTO (R_V850_HI16_S, /* type */ |
105 | 0, /* rightshift */ | |
106 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
107 | 16, /* bitsize */ | |
108 | false, /* pc_relative */ | |
109 | 0, /* bitpos */ | |
110 | complain_overflow_dont, /* complain_on_overflow */ | |
111 | v850_elf_reloc, /* special_function */ | |
112 | "R_V850_HI16_S", /* name */ | |
113 | true, /* partial_inplace */ | |
114 | 0xffff, /* src_mask */ | |
115 | 0xffff, /* dst_mask */ | |
116 | false), /* pcrel_offset */ | |
01b49cb3 C |
117 | |
118 | /* High 16 bits of symbol value. */ | |
de224d6a MM |
119 | HOWTO (R_V850_HI16, /* type */ |
120 | 0, /* rightshift */ | |
121 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
122 | 16, /* bitsize */ | |
123 | false, /* pc_relative */ | |
124 | 0, /* bitpos */ | |
125 | complain_overflow_dont, /* complain_on_overflow */ | |
126 | v850_elf_reloc, /* special_function */ | |
127 | "R_V850_HI16", /* name */ | |
128 | true, /* partial_inplace */ | |
129 | 0xffff, /* src_mask */ | |
130 | 0xffff, /* dst_mask */ | |
131 | false), /* pcrel_offset */ | |
01b49cb3 C |
132 | |
133 | /* Low 16 bits of symbol value. */ | |
de224d6a MM |
134 | HOWTO (R_V850_LO16, /* type */ |
135 | 0, /* rightshift */ | |
136 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
137 | 16, /* bitsize */ | |
138 | false, /* pc_relative */ | |
139 | 0, /* bitpos */ | |
140 | complain_overflow_dont, /* complain_on_overflow */ | |
8988d935 | 141 | v850_elf_reloc, /* special_function */ |
de224d6a MM |
142 | "R_V850_LO16", /* name */ |
143 | true, /* partial_inplace */ | |
144 | 0xffff, /* src_mask */ | |
145 | 0xffff, /* dst_mask */ | |
146 | false), /* pcrel_offset */ | |
237b5c4c JL |
147 | |
148 | /* Simple 32bit reloc. */ | |
de224d6a MM |
149 | HOWTO (R_V850_32, /* type */ |
150 | 0, /* rightshift */ | |
151 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
152 | 32, /* bitsize */ | |
153 | false, /* pc_relative */ | |
154 | 0, /* bitpos */ | |
155 | complain_overflow_dont, /* complain_on_overflow */ | |
22a9f052 | 156 | v850_elf_reloc, /* special_function */ |
de224d6a MM |
157 | "R_V850_32", /* name */ |
158 | true, /* partial_inplace */ | |
159 | 0xffffffff, /* src_mask */ | |
160 | 0xffffffff, /* dst_mask */ | |
161 | false), /* pcrel_offset */ | |
237b5c4c JL |
162 | |
163 | /* Simple 16bit reloc. */ | |
de224d6a MM |
164 | HOWTO (R_V850_16, /* type */ |
165 | 0, /* rightshift */ | |
166 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
167 | 16, /* bitsize */ | |
168 | false, /* pc_relative */ | |
169 | 0, /* bitpos */ | |
170 | complain_overflow_dont, /* complain_on_overflow */ | |
171 | bfd_elf_generic_reloc, /* special_function */ | |
172 | "R_V850_16", /* name */ | |
173 | true, /* partial_inplace */ | |
174 | 0xffff, /* src_mask */ | |
175 | 0xffff, /* dst_mask */ | |
176 | false), /* pcrel_offset */ | |
afaed5e9 MM |
177 | |
178 | /* Simple 8bit reloc. */ | |
de224d6a MM |
179 | HOWTO (R_V850_8, /* type */ |
180 | 0, /* rightshift */ | |
181 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
182 | 8, /* bitsize */ | |
183 | false, /* pc_relative */ | |
184 | 0, /* bitpos */ | |
185 | complain_overflow_dont, /* complain_on_overflow */ | |
186 | bfd_elf_generic_reloc, /* special_function */ | |
187 | "R_V850_8", /* name */ | |
188 | true, /* partial_inplace */ | |
189 | 0xff, /* src_mask */ | |
190 | 0xff, /* dst_mask */ | |
191 | false), /* pcrel_offset */ | |
b6d08fce | 192 | |
def31039 NC |
193 | /* 16 bit offset from the short data area pointer. */ |
194 | HOWTO (R_V850_SDA_16_16_OFFSET, /* type */ | |
de224d6a MM |
195 | 0, /* rightshift */ |
196 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
197 | 16, /* bitsize */ | |
198 | false, /* pc_relative */ | |
199 | 0, /* bitpos */ | |
200 | complain_overflow_dont, /* complain_on_overflow */ | |
8988d935 | 201 | v850_elf_reloc, /* special_function */ |
def31039 NC |
202 | "R_V850_SDA_16_16_OFFSET", /* name */ |
203 | false, /* partial_inplace */ | |
de224d6a MM |
204 | 0xffff, /* src_mask */ |
205 | 0xffff, /* dst_mask */ | |
206 | false), /* pcrel_offset */ | |
b6d08fce | 207 | |
def31039 NC |
208 | /* 15 bit offset from the short data area pointer. */ |
209 | HOWTO (R_V850_SDA_15_16_OFFSET, /* type */ | |
210 | 1, /* rightshift */ | |
211 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
212 | 16, /* bitsize */ | |
213 | false, /* pc_relative */ | |
214 | 1, /* bitpos */ | |
215 | complain_overflow_dont, /* complain_on_overflow */ | |
216 | v850_elf_reloc, /* special_function */ | |
217 | "R_V850_SDA_15_16_OFFSET", /* name */ | |
218 | false, /* partial_inplace */ | |
219 | 0xfffe, /* src_mask */ | |
220 | 0xfffe, /* dst_mask */ | |
221 | false), /* pcrel_offset */ | |
222 | ||
223 | /* 16 bit offset from the zero data area pointer. */ | |
224 | HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */ | |
de224d6a MM |
225 | 0, /* rightshift */ |
226 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
227 | 16, /* bitsize */ | |
228 | false, /* pc_relative */ | |
229 | 0, /* bitpos */ | |
230 | complain_overflow_dont, /* complain_on_overflow */ | |
8988d935 | 231 | v850_elf_reloc, /* special_function */ |
def31039 NC |
232 | "R_V850_ZDA_16_16_OFFSET", /* name */ |
233 | false, /* partial_inplace */ | |
de224d6a MM |
234 | 0xffff, /* src_mask */ |
235 | 0xffff, /* dst_mask */ | |
236 | false), /* pcrel_offset */ | |
b6d08fce | 237 | |
def31039 NC |
238 | /* 15 bit offset from the zero data area pointer. */ |
239 | HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */ | |
240 | 1, /* rightshift */ | |
241 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
242 | 16, /* bitsize */ | |
243 | false, /* pc_relative */ | |
244 | 1, /* bitpos */ | |
245 | complain_overflow_dont, /* complain_on_overflow */ | |
246 | v850_elf_reloc, /* special_function */ | |
247 | "R_V850_ZDA_15_16_OFFSET", /* name */ | |
248 | false, /* partial_inplace */ | |
249 | 0xfffe, /* src_mask */ | |
250 | 0xfffe, /* dst_mask */ | |
251 | false), /* pcrel_offset */ | |
252 | ||
253 | /* 6 bit offset from the tiny data area pointer. */ | |
254 | HOWTO (R_V850_TDA_6_8_OFFSET, /* type */ | |
255 | 2, /* rightshift */ | |
256 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
257 | 8, /* bitsize */ | |
258 | false, /* pc_relative */ | |
259 | 1, /* bitpos */ | |
260 | complain_overflow_dont, /* complain_on_overflow */ | |
261 | v850_elf_reloc, /* special_function */ | |
262 | "R_V850_TDA_6_8_OFFSET", /* name */ | |
263 | false, /* partial_inplace */ | |
264 | 0x7e, /* src_mask */ | |
265 | 0x7e, /* dst_mask */ | |
266 | false), /* pcrel_offset */ | |
267 | ||
268 | /* 8 bit offset from the tiny data area pointer. */ | |
269 | HOWTO (R_V850_TDA_7_8_OFFSET, /* type */ | |
270 | 1, /* rightshift */ | |
271 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
272 | 8, /* bitsize */ | |
273 | false, /* pc_relative */ | |
274 | 0, /* bitpos */ | |
275 | complain_overflow_dont, /* complain_on_overflow */ | |
276 | v850_elf_reloc, /* special_function */ | |
277 | "R_V850_TDA_7_8_OFFSET", /* name */ | |
278 | false, /* partial_inplace */ | |
279 | 0x7f, /* src_mask */ | |
280 | 0x7f, /* dst_mask */ | |
281 | false), /* pcrel_offset */ | |
282 | ||
283 | /* 7 bit offset from the tiny data area pointer. */ | |
284 | HOWTO (R_V850_TDA_7_7_OFFSET, /* type */ | |
285 | 0, /* rightshift */ | |
286 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
287 | 7, /* bitsize */ | |
288 | false, /* pc_relative */ | |
289 | 0, /* bitpos */ | |
290 | complain_overflow_dont, /* complain_on_overflow */ | |
291 | v850_elf_reloc, /* special_function */ | |
292 | "R_V850_TDA_7_7_OFFSET", /* name */ | |
293 | false, /* partial_inplace */ | |
294 | 0x7f, /* src_mask */ | |
295 | 0x7f, /* dst_mask */ | |
296 | false), /* pcrel_offset */ | |
297 | ||
5bb28764 NC |
298 | /* 16 bit offset from the tiny data area pointer! */ |
299 | HOWTO (R_V850_TDA_16_16_OFFSET, /* type */ | |
300 | 0, /* rightshift */ | |
301 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
302 | 16, /* bitsize */ | |
303 | false, /* pc_relative */ | |
304 | 0, /* bitpos */ | |
305 | complain_overflow_dont, /* complain_on_overflow */ | |
306 | v850_elf_reloc, /* special_function */ | |
307 | "R_V850_TDA_16_16_OFFSET", /* name */ | |
308 | false, /* partial_inplace */ | |
309 | 0xffff, /* src_mask */ | |
310 | 0xfff, /* dst_mask */ | |
311 | false), /* pcrel_offset */ | |
312 | ||
def31039 NC |
313 | /* start-sanitize-v850e */ |
314 | ||
315 | /* 5 bit offset from the tiny data area pointer. */ | |
316 | HOWTO (R_V850_TDA_4_5_OFFSET, /* type */ | |
317 | 1, /* rightshift */ | |
318 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
319 | 5, /* bitsize */ | |
320 | false, /* pc_relative */ | |
321 | 0, /* bitpos */ | |
322 | complain_overflow_dont, /* complain_on_overflow */ | |
323 | v850_elf_reloc, /* special_function */ | |
324 | "R_V850_TDA_4_5_OFFSET", /* name */ | |
325 | false, /* partial_inplace */ | |
326 | 0x0f, /* src_mask */ | |
327 | 0x0f, /* dst_mask */ | |
328 | false), /* pcrel_offset */ | |
329 | ||
330 | /* 4 bit offset from the tiny data area pointer. */ | |
331 | HOWTO (R_V850_TDA_4_4_OFFSET, /* type */ | |
332 | 0, /* rightshift */ | |
333 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
334 | 4, /* bitsize */ | |
335 | false, /* pc_relative */ | |
336 | 0, /* bitpos */ | |
337 | complain_overflow_dont, /* complain_on_overflow */ | |
338 | v850_elf_reloc, /* special_function */ | |
339 | "R_V850_TDA_4_4_OFFSET", /* name */ | |
340 | false, /* partial_inplace */ | |
341 | 0x0f, /* src_mask */ | |
342 | 0x0f, /* dst_mask */ | |
343 | false), /* pcrel_offset */ | |
344 | ||
345 | /* 16 bit offset from the short data area pointer. */ | |
346 | HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */ | |
de224d6a MM |
347 | 0, /* rightshift */ |
348 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
def31039 | 349 | 16, /* bitsize */ |
de224d6a MM |
350 | false, /* pc_relative */ |
351 | 0, /* bitpos */ | |
352 | complain_overflow_dont, /* complain_on_overflow */ | |
8988d935 | 353 | v850_elf_reloc, /* special_function */ |
def31039 NC |
354 | "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */ |
355 | false, /* partial_inplace */ | |
356 | 0xfffe0020, /* src_mask */ | |
357 | 0xfffe0020, /* dst_mask */ | |
de224d6a | 358 | false), /* pcrel_offset */ |
b6d08fce | 359 | |
def31039 NC |
360 | /* 16 bit offset from the zero data area pointer. */ |
361 | HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */ | |
362 | 0, /* rightshift */ | |
363 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
364 | 16, /* bitsize */ | |
365 | false, /* pc_relative */ | |
366 | 0, /* bitpos */ | |
367 | complain_overflow_dont, /* complain_on_overflow */ | |
368 | v850_elf_reloc, /* special_function */ | |
369 | "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */ | |
370 | false, /* partial_inplace */ | |
371 | 0xfffe0020, /* src_mask */ | |
372 | 0xfffe0020, /* dst_mask */ | |
373 | false), /* pcrel_offset */ | |
374 | ||
9420c20a NC |
375 | /* 6 bit offset from the call table base pointer. */ |
376 | HOWTO (R_V850_CALLT_6_7_OFFSET, /* type */ | |
377 | 0, /* rightshift */ | |
378 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
379 | 7, /* bitsize */ | |
380 | false, /* pc_relative */ | |
381 | 0, /* bitpos */ | |
382 | complain_overflow_dont, /* complain_on_overflow */ | |
383 | v850_elf_reloc, /* special_function */ | |
384 | "R_V850_CALLT_6_7_OFFSET", /* name */ | |
385 | false, /* partial_inplace */ | |
386 | 0x3f, /* src_mask */ | |
387 | 0x3f, /* dst_mask */ | |
388 | false), /* pcrel_offset */ | |
389 | ||
390 | /* 16 bit offset from the call table base pointer. */ | |
391 | HOWTO (R_V850_CALLT_16_16_OFFSET, /* type */ | |
392 | 0, /* rightshift */ | |
393 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
394 | 16, /* bitsize */ | |
395 | false, /* pc_relative */ | |
396 | 0, /* bitpos */ | |
397 | complain_overflow_dont, /* complain_on_overflow */ | |
398 | v850_elf_reloc, /* special_function */ | |
399 | "R_V850_CALLT_16_16_OFFSET", /* name */ | |
400 | false, /* partial_inplace */ | |
401 | 0xffff, /* src_mask */ | |
402 | 0xffff, /* dst_mask */ | |
403 | false), /* pcrel_offset */ | |
404 | ||
def31039 | 405 | /* end-sanitize-v850e */ |
01b49cb3 C |
406 | }; |
407 | ||
408 | /* Map BFD reloc types to V850 ELF reloc types. */ | |
409 | ||
de224d6a | 410 | struct v850_elf_reloc_map |
01b49cb3 C |
411 | { |
412 | unsigned char bfd_reloc_val; | |
413 | unsigned char elf_reloc_val; | |
414 | }; | |
415 | ||
de224d6a | 416 | static const struct v850_elf_reloc_map v850_elf_reloc_map[] = |
01b49cb3 | 417 | { |
def31039 NC |
418 | { BFD_RELOC_NONE, R_V850_NONE }, |
419 | { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, | |
def31039 NC |
420 | { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, |
421 | { BFD_RELOC_HI16_S, R_V850_HI16_S }, | |
422 | { BFD_RELOC_HI16, R_V850_HI16 }, | |
423 | { BFD_RELOC_LO16, R_V850_LO16 }, | |
424 | { BFD_RELOC_32, R_V850_32 }, | |
425 | { BFD_RELOC_16, R_V850_16 }, | |
426 | { BFD_RELOC_8, R_V850_8 }, | |
427 | { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, | |
428 | { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, | |
429 | { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, | |
430 | { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, | |
9420c20a NC |
431 | { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, |
432 | { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, | |
433 | { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, | |
5bb28764 | 434 | { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, |
def31039 | 435 | /* start-sanitize-v850e */ |
9420c20a NC |
436 | { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, |
437 | { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, | |
def31039 NC |
438 | { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, |
439 | { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, | |
9420c20a NC |
440 | { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, |
441 | { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, | |
def31039 | 442 | /* end-sanitize-v850e */ |
01b49cb3 C |
443 | }; |
444 | ||
de224d6a MM |
445 | \f |
446 | /* Map a bfd relocation into the appropriate howto structure */ | |
01b49cb3 | 447 | static reloc_howto_type * |
de224d6a | 448 | v850_elf_reloc_type_lookup (abfd, code) |
9420c20a NC |
449 | bfd * abfd; |
450 | bfd_reloc_code_real_type code; | |
01b49cb3 C |
451 | { |
452 | unsigned int i; | |
453 | ||
454 | for (i = 0; | |
de224d6a | 455 | i < sizeof (v850_elf_reloc_map) / sizeof (struct v850_elf_reloc_map); |
01b49cb3 C |
456 | i++) |
457 | { | |
de224d6a | 458 | if (v850_elf_reloc_map[i].bfd_reloc_val == code) |
def31039 NC |
459 | { |
460 | BFD_ASSERT (v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val].type == v850_elf_reloc_map[i].elf_reloc_val); | |
461 | ||
462 | return & v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val]; | |
463 | } | |
01b49cb3 C |
464 | } |
465 | ||
466 | return NULL; | |
467 | } | |
468 | ||
de224d6a | 469 | \f |
01b49cb3 | 470 | /* Set the howto pointer for an V850 ELF reloc. */ |
01b49cb3 | 471 | static void |
de224d6a | 472 | v850_elf_info_to_howto_rel (abfd, cache_ptr, dst) |
9420c20a NC |
473 | bfd * abfd; |
474 | arelent * cache_ptr; | |
475 | Elf32_Internal_Rel * dst; | |
01b49cb3 C |
476 | { |
477 | unsigned int r_type; | |
478 | ||
479 | r_type = ELF32_R_TYPE (dst->r_info); | |
480 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
de224d6a MM |
481 | cache_ptr->howto = &v850_elf_howto_table[r_type]; |
482 | } | |
483 | ||
197de3ba CM |
484 | /* Set the howto pointer for a V850 ELF reloc (type RELA). */ |
485 | static void | |
486 | v850_elf_info_to_howto_rela (abfd, cache_ptr, dst) | |
487 | bfd * abfd; | |
488 | arelent * cache_ptr; | |
489 | Elf32_Internal_Rela *dst; | |
490 | { | |
491 | unsigned int r_type; | |
492 | ||
493 | r_type = ELF32_R_TYPE (dst->r_info); | |
494 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
495 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
496 | } | |
497 | ||
de224d6a MM |
498 | \f |
499 | /* Look through the relocs for a section during the first phase, and | |
500 | allocate space in the global offset table or procedure linkage | |
501 | table. */ | |
502 | ||
503 | static boolean | |
504 | v850_elf_check_relocs (abfd, info, sec, relocs) | |
9420c20a NC |
505 | bfd * abfd; |
506 | struct bfd_link_info * info; | |
507 | asection * sec; | |
508 | const Elf_Internal_Rela * relocs; | |
de224d6a MM |
509 | { |
510 | boolean ret = true; | |
511 | bfd *dynobj; | |
512 | Elf_Internal_Shdr *symtab_hdr; | |
513 | struct elf_link_hash_entry **sym_hashes; | |
514 | const Elf_Internal_Rela *rel; | |
515 | const Elf_Internal_Rela *rel_end; | |
516 | asection *sreloc; | |
22a9f052 | 517 | enum v850_reloc_type r_type; |
de224d6a MM |
518 | int other = 0; |
519 | const char *common = (const char *)0; | |
520 | ||
521 | if (info->relocateable) | |
522 | return true; | |
523 | ||
524 | #ifdef DEBUG | |
525 | fprintf (stderr, "v850_elf_check_relocs called for section %s in %s\n", | |
526 | bfd_get_section_name (abfd, sec), | |
527 | bfd_get_filename (abfd)); | |
528 | #endif | |
529 | ||
530 | dynobj = elf_hash_table (info)->dynobj; | |
531 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
532 | sym_hashes = elf_sym_hashes (abfd); | |
533 | sreloc = NULL; | |
534 | ||
535 | rel_end = relocs + sec->reloc_count; | |
536 | for (rel = relocs; rel < rel_end; rel++) | |
537 | { | |
538 | unsigned long r_symndx; | |
539 | struct elf_link_hash_entry *h; | |
540 | ||
541 | r_symndx = ELF32_R_SYM (rel->r_info); | |
542 | if (r_symndx < symtab_hdr->sh_info) | |
543 | h = NULL; | |
544 | else | |
545 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
546 | ||
22a9f052 | 547 | r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info); |
de224d6a MM |
548 | switch (r_type) |
549 | { | |
550 | default: | |
551 | case R_V850_NONE: | |
552 | case R_V850_9_PCREL: | |
553 | case R_V850_22_PCREL: | |
554 | case R_V850_HI16_S: | |
555 | case R_V850_HI16: | |
556 | case R_V850_LO16: | |
557 | case R_V850_32: | |
558 | case R_V850_16: | |
559 | case R_V850_8: | |
9420c20a NC |
560 | /* start-sanitize-v850e */ |
561 | case R_V850_CALLT_6_7_OFFSET: | |
562 | case R_V850_CALLT_16_16_OFFSET: | |
563 | /* end-sanitize-v850e */ | |
de224d6a MM |
564 | break; |
565 | ||
def31039 NC |
566 | /* start-sanitize-v850e */ |
567 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
568 | /* end-sanitize-v850e */ | |
569 | case R_V850_SDA_16_16_OFFSET: | |
570 | case R_V850_SDA_15_16_OFFSET: | |
de224d6a MM |
571 | other = V850_OTHER_SDA; |
572 | common = ".scommon"; | |
573 | goto small_data_common; | |
def31039 NC |
574 | |
575 | /* start-sanitize-v850e */ | |
576 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
577 | /* end-sanitize-v850e */ | |
578 | case R_V850_ZDA_16_16_OFFSET: | |
579 | case R_V850_ZDA_15_16_OFFSET: | |
de224d6a MM |
580 | other = V850_OTHER_ZDA; |
581 | common = ".zcommon"; | |
582 | goto small_data_common; | |
def31039 NC |
583 | |
584 | /* start-sanitize-v850e */ | |
585 | case R_V850_TDA_4_5_OFFSET: | |
586 | case R_V850_TDA_4_4_OFFSET: | |
2cf9a0d0 | 587 | /* end-sanitize-v850e */ |
def31039 NC |
588 | case R_V850_TDA_6_8_OFFSET: |
589 | case R_V850_TDA_7_8_OFFSET: | |
590 | case R_V850_TDA_7_7_OFFSET: | |
5bb28764 | 591 | case R_V850_TDA_16_16_OFFSET: |
de224d6a MM |
592 | other = V850_OTHER_TDA; |
593 | common = ".tcommon"; | |
594 | /* fall through */ | |
595 | ||
596 | #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) | |
597 | ||
598 | small_data_common: | |
599 | if (h) | |
600 | { | |
601 | h->other |= other; /* flag which type of relocation was used */ | |
602 | if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) | |
603 | && (h->other & V850_OTHER_ERROR) == 0) | |
604 | { | |
55e6f0bf NC |
605 | const char * msg; |
606 | static char buff[100]; /* XXX */ | |
607 | ||
de224d6a MM |
608 | switch (h->other & V850_OTHER_MASK) |
609 | { | |
610 | default: | |
55e6f0bf | 611 | msg = "cannot occupy in multiple small data regions"; |
de224d6a MM |
612 | break; |
613 | case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: | |
55e6f0bf | 614 | msg = "can only be in one of the small, zero, and tiny data regions"; |
de224d6a MM |
615 | break; |
616 | case V850_OTHER_SDA | V850_OTHER_ZDA: | |
55e6f0bf | 617 | msg = "cannot be in both small and zero data regions simultaneously"; |
de224d6a MM |
618 | break; |
619 | case V850_OTHER_SDA | V850_OTHER_TDA: | |
55e6f0bf | 620 | msg = "cannot be in both small and tiny data regions simultaneously"; |
de224d6a MM |
621 | break; |
622 | case V850_OTHER_ZDA | V850_OTHER_TDA: | |
55e6f0bf | 623 | msg = "cannot be in both zero and tiny data regions simultaneously"; |
de224d6a MM |
624 | break; |
625 | } | |
626 | ||
55e6f0bf NC |
627 | sprintf (buff, "Variable '%s' %s", h->root.root.string, msg ); |
628 | info->callbacks->warning (info, buff, h->root.root.string, | |
629 | abfd, h->root.u.def.section, 0); | |
de224d6a MM |
630 | |
631 | bfd_set_error (bfd_error_bad_value); | |
632 | h->other |= V850_OTHER_ERROR; | |
633 | ret = false; | |
634 | } | |
635 | } | |
636 | ||
8988d935 | 637 | if (h && h->root.type == bfd_link_hash_common |
de224d6a MM |
638 | && h->root.u.c.p |
639 | && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) | |
640 | { | |
641 | asection *section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); | |
642 | section->flags |= SEC_IS_COMMON; | |
643 | } | |
644 | ||
645 | #ifdef DEBUG | |
646 | fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", | |
647 | v850_elf_howto_table[ (int)r_type ].name, | |
648 | (h && h->root.root.string) ? h->root.root.string : "<unknown>", | |
649 | (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); | |
650 | #endif | |
651 | break; | |
652 | } | |
653 | } | |
654 | ||
655 | return ret; | |
01b49cb3 C |
656 | } |
657 | ||
197de3ba CM |
658 | typedef struct |
659 | { | |
660 | long addend; | |
661 | bfd_byte * address; | |
662 | unsigned long counter; | |
663 | } | |
664 | hi16s_location; | |
665 | ||
666 | static hi16s_location previous_hi16s[ 10 ]; /* XXX is this enough ? */ | |
667 | static unsigned long hi16s_counter; | |
668 | ||
669 | static void | |
670 | remember_hi16s_reloc (addend, address) | |
671 | long addend; | |
672 | bfd_byte * address; | |
673 | { | |
674 | hi16s_location * oldest = NULL; | |
675 | int i; | |
676 | ||
677 | /* Find a free slot. */ | |
678 | for (i = sizeof (previous_hi16s) / sizeof (previous_hi16s[0]); i--;) | |
679 | { | |
680 | hi16s_location * entry = previous_hi16s + i; | |
681 | ||
682 | if (entry->addend == 0 && entry->address == 0) | |
683 | { | |
684 | /* Use this entry. */ | |
685 | oldest = entry; | |
686 | break; | |
687 | } | |
688 | ||
689 | /* Remember the least recently added entry. */ | |
690 | if (oldest == NULL || oldest->counter > entry->counter) | |
691 | oldest = entry; | |
692 | } | |
693 | ||
694 | oldest->addend = addend; | |
695 | oldest->address = address; | |
696 | oldest->counter = hi16s_counter ++; | |
697 | ||
698 | /* Cope with wrap around of our counter. */ | |
699 | if (hi16s_counter == 0) | |
700 | { | |
701 | /* XXX - Assume that all counter entries differ only in their low 16 bits. */ | |
702 | for (i = sizeof (previous_hi16s) / sizeof (previous_hi16s[0]); i--;) | |
703 | { | |
704 | hi16s_location * entry = previous_hi16s + i; | |
705 | ||
706 | entry->counter &= 0xffff; | |
707 | } | |
708 | ||
709 | hi16s_counter = 0x10000; | |
710 | } | |
711 | ||
712 | return; | |
713 | } | |
714 | ||
715 | static bfd_byte * | |
716 | find_remembered_hi16s_reloc (addend) | |
717 | long addend; | |
718 | { | |
719 | hi16s_location * match = NULL; | |
720 | int i; | |
721 | ||
722 | /* Search the table. Record the most recent entry that matches. */ | |
723 | for (i = sizeof (previous_hi16s) / sizeof (previous_hi16s[0]); i--;) | |
724 | { | |
725 | hi16s_location * entry = previous_hi16s + i; | |
726 | ||
727 | if (entry->addend == addend) | |
728 | { | |
729 | if (match == NULL || match->counter < entry->counter) | |
730 | match = entry; | |
731 | } | |
732 | } | |
733 | ||
734 | if (match != NULL) | |
735 | { | |
736 | bfd_byte * addr; | |
737 | ||
738 | /* Empty the table entry. */ | |
739 | match->addend = 0; | |
740 | ||
741 | addr = match->address; | |
742 | match->address = NULL; | |
743 | ||
744 | return addr; | |
745 | } | |
746 | ||
747 | return NULL; | |
748 | } | |
749 | ||
e73b6ae6 | 750 | static bfd_reloc_status_type |
197de3ba | 751 | v850_elf_perform_relocation (abfd, r_type, addend, address) |
22a9f052 NC |
752 | bfd * abfd; |
753 | int r_type; | |
754 | long addend; | |
755 | bfd_byte * address; | |
e73b6ae6 | 756 | { |
22a9f052 | 757 | unsigned long insn; |
5ddf2a9e | 758 | |
22a9f052 | 759 | switch (r_type) |
5ddf2a9e NC |
760 | { |
761 | default: | |
22a9f052 | 762 | /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */ |
5ddf2a9e NC |
763 | return bfd_reloc_notsupported; |
764 | ||
22a9f052 | 765 | case R_V850_32: |
197de3ba | 766 | addend += bfd_get_32 (abfd, address); |
22a9f052 NC |
767 | bfd_put_32 (abfd, addend, address); |
768 | return bfd_reloc_ok; | |
769 | ||
5ddf2a9e | 770 | case R_V850_22_PCREL: |
22a9f052 | 771 | if (addend > 0x1fffff || addend < -0x200000) |
5ddf2a9e NC |
772 | return bfd_reloc_overflow; |
773 | ||
22a9f052 | 774 | if ((addend % 2) != 0) |
5ddf2a9e NC |
775 | return bfd_reloc_dangerous; |
776 | ||
22a9f052 | 777 | insn = bfd_get_32 (abfd, address); |
5ddf2a9e | 778 | insn &= ~0xfffe003f; |
22a9f052 NC |
779 | insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); |
780 | bfd_put_32 (abfd, insn, address); | |
5ddf2a9e NC |
781 | return bfd_reloc_ok; |
782 | ||
783 | case R_V850_9_PCREL: | |
22a9f052 | 784 | if (addend > 0xff || addend < -0x100) |
5ddf2a9e NC |
785 | return bfd_reloc_overflow; |
786 | ||
22a9f052 | 787 | if ((addend % 2) != 0) |
5ddf2a9e NC |
788 | return bfd_reloc_dangerous; |
789 | ||
22a9f052 | 790 | insn = bfd_get_16 (abfd, address); |
5ddf2a9e | 791 | insn &= ~ 0xf870; |
22a9f052 NC |
792 | insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); |
793 | break; | |
5ddf2a9e | 794 | |
197de3ba CM |
795 | case R_V850_HI16: |
796 | addend += (bfd_get_16 (abfd, address) << 16); | |
797 | addend = (addend >> 16); | |
798 | insn = addend; | |
799 | break; | |
75172c0f | 800 | |
197de3ba CM |
801 | case R_V850_HI16_S: |
802 | /* Remember where this relocation took place. */ | |
803 | remember_hi16s_reloc (addend, address); | |
804 | ||
0a5875fc | 805 | addend += (bfd_get_16 (abfd, address) << 16); |
22a9f052 | 806 | addend = (addend >> 16) + ((addend & 0x8000) != 0); |
197de3ba | 807 | |
75172c0f NC |
808 | /* This relocation cannot overflow. */ |
809 | if (addend > 0x7fff || addend < -0x8000) | |
810 | addend = 0; | |
5ddf2a9e | 811 | |
22a9f052 NC |
812 | insn = addend; |
813 | break; | |
5ddf2a9e NC |
814 | |
815 | case R_V850_LO16: | |
75172c0f NC |
816 | /* Calculate the sum of the value stored in the instruction and the |
817 | addend and check for overflow from the low 16 bits into the high | |
6aa32b90 | 818 | 16 bits. The assembler has already done some of this: If the |
197de3ba CM |
819 | value stored in the instruction has its 15th bit set, (counting |
820 | from zero) then the assembler will have added 1 to the value | |
821 | stored in the associated HI16S reloc. So for example, these | |
822 | relocations: | |
6aa32b90 NC |
823 | |
824 | movhi hi( fred ), r0, r1 | |
825 | movea lo( fred ), r1, r1 | |
826 | ||
827 | will store 0 in the value fields for the MOVHI and MOVEA instructions | |
828 | and addend will be the address of fred, but for these instructions: | |
829 | ||
830 | movhi hi( fred + 0x123456), r0, r1 | |
831 | movea lo( fred + 0x123456), r1, r1 | |
832 | ||
833 | the value stored in the MOVHI instruction will be 0x12 and the value | |
834 | stored in the MOVEA instruction will be 0x3456. If however the | |
835 | instructions were: | |
836 | ||
837 | movhi hi( fred + 0x10ffff), r0, r1 | |
838 | movea lo( fred + 0x10ffff), r1, r1 | |
839 | ||
840 | then the value stored in the MOVHI instruction would be 0x11 (not | |
841 | 0x10) and the value stored in the MOVEA instruction would be 0xffff. | |
842 | Thus (assuming for the moment that the addend is 0), at run time the | |
843 | MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction | |
844 | adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if | |
845 | the instructions were: | |
846 | ||
847 | movhi hi( fred - 1), r0, r1 | |
848 | movea lo( fred - 1), r1, r1 | |
849 | ||
850 | then 0 is stored in the MOVHI instruction and -1 is stored in the | |
851 | MOVEA instruction. | |
852 | ||
853 | Overflow can occur if the addition of the value stored in the | |
197de3ba CM |
854 | instruction plus the addend sets the 15th bit when before it was clear. |
855 | This is because the 15th bit will be sign extended into the high part, | |
856 | thus reducing its value by one, but since the 15th bit was originally | |
857 | clear, the assembler will not have added 1 to the previous HI16S reloc | |
6aa32b90 NC |
858 | to compensate for this effect. For example: |
859 | ||
860 | movhi hi( fred + 0x123456), r0, r1 | |
861 | movea lo( fred + 0x123456), r1, r1 | |
862 | ||
863 | The value stored in HI16S reloc is 0x12, the value stored in the LO16 | |
864 | reloc is 0x3456. If we assume that the address of fred is 0x00007000 | |
865 | then the relocations become: | |
866 | ||
867 | HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 | |
868 | LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 | |
869 | ||
870 | but when the instructions are executed, the MOVEA instruction's value | |
871 | is signed extended, so the sum becomes: | |
872 | ||
873 | 0x00120000 | |
874 | + 0xffffa456 | |
875 | ------------ | |
876 | 0x0011a456 but 'fred + 0x123456' = 0x0012a456 | |
877 | ||
878 | Note that if the 15th bit was set in the value stored in the LO16 | |
879 | reloc, then we do not have to do anything: | |
880 | ||
881 | movhi hi( fred + 0x10ffff), r0, r1 | |
882 | movea lo( fred + 0x10ffff), r1, r1 | |
883 | ||
884 | HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 | |
885 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff | |
886 | ||
887 | 0x00110000 | |
888 | + 0x00006fff | |
889 | ------------ | |
890 | 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff | |
891 | ||
892 | ||
893 | Overflow can also occur if the computation carries into the 16th bit | |
894 | and it also results in the 15th bit having the same value as the 15th | |
895 | bit of the original value. What happens is that the HI16S reloc | |
896 | will have already examined the 15th bit of the original value and | |
897 | added 1 to the high part if the bit is set. This compensates for the | |
898 | sign extension of 15th bit of the result of the computation. But now | |
899 | there is a carry into the 16th bit, and this has not been allowed for. | |
900 | ||
901 | So, for example if fred is at address 0xf000: | |
902 | ||
197de3ba | 903 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] |
6aa32b90 NC |
904 | movea lo( fred + 0xffff), r1, r1 |
905 | ||
906 | HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 | |
197de3ba | 907 | LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) |
6aa32b90 NC |
908 | |
909 | 0x00010000 | |
910 | + 0xffffefff | |
911 | ------------ | |
912 | 0x0000efff but 'fred + 0xffff' = 0x0001efff | |
913 | ||
914 | Similarly, if the 15th bit remains clear, but overflow occurs into | |
915 | the 16th bit then (assuming the address of fred is 0xf000): | |
916 | ||
197de3ba | 917 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] |
6aa32b90 NC |
918 | movea lo( fred + 0x7000), r1, r1 |
919 | ||
920 | HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 | |
197de3ba | 921 | LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) |
6aa32b90 NC |
922 | |
923 | 0x00000000 | |
924 | + 0x00006fff | |
925 | ------------ | |
926 | 0x00006fff but 'fred + 0x7000' = 0x00016fff | |
927 | ||
928 | Note - there is no need to change anything if a carry occurs, and the | |
929 | 15th bit changes its value from being set to being clear, as the HI16S | |
930 | reloc will have already added in 1 to the high part for us: | |
931 | ||
197de3ba | 932 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] |
6aa32b90 NC |
933 | movea lo( fred + 0xffff), r1, r1 |
934 | ||
935 | HI16S: 0x0001 + (0x00007000 >> 16) | |
197de3ba | 936 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) |
6aa32b90 NC |
937 | |
938 | 0x00010000 | |
939 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
940 | ------------ | |
941 | 0x00016fff which is right (assuming that fred is at 0x7000) | |
942 | ||
943 | but if the 15th bit goes from being clear to being set, then we must | |
944 | once again handle overflow: | |
945 | ||
197de3ba | 946 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] |
6aa32b90 NC |
947 | movea lo( fred + 0x7000), r1, r1 |
948 | ||
949 | HI16S: 0x0000 + (0x0000ffff >> 16) | |
950 | LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) | |
951 | ||
952 | 0x00000000 | |
953 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
954 | ------------ | |
955 | 0x00006fff which is wrong (assuming that fred is at 0xffff) | |
75172c0f NC |
956 | */ |
957 | ||
958 | { | |
959 | long result; | |
6aa32b90 | 960 | |
75172c0f NC |
961 | insn = bfd_get_16 (abfd, address); |
962 | result = insn + addend; | |
963 | ||
6aa32b90 NC |
964 | #define BIT15_SET(x) ((x) & 0x8000) |
965 | #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) | |
75172c0f | 966 | |
6aa32b90 NC |
967 | if ((BIT15_SET (result) && ! BIT15_SET (addend)) |
968 | || (OVERFLOWS (addend, insn) | |
969 | && ((! BIT15_SET (insn)) || (BIT15_SET (addend))))) | |
75172c0f | 970 | { |
197de3ba CM |
971 | bfd_byte * hi16s_address = find_remembered_hi16s_reloc (addend); |
972 | ||
973 | /* Amend the matching HI16_S relocation. */ | |
974 | if (hi16s_address != NULL) | |
75172c0f | 975 | { |
197de3ba | 976 | insn = bfd_get_16 (abfd, hi16s_address); |
75172c0f | 977 | insn += 1; |
197de3ba | 978 | bfd_put_16 (abfd, insn, hi16s_address); |
75172c0f NC |
979 | } |
980 | else | |
981 | { | |
197de3ba | 982 | fprintf (stderr, "FAILED to find previous HI16 reloc\n"); |
75172c0f NC |
983 | return bfd_reloc_overflow; |
984 | } | |
985 | } | |
986 | ||
987 | /* Do not complain if value has top bit set, as this has been anticipated. */ | |
988 | insn = result & 0xffff; | |
197de3ba | 989 | break; |
75172c0f | 990 | } |
75172c0f NC |
991 | |
992 | case R_V850_8: | |
197de3ba | 993 | addend += (char) bfd_get_8 (abfd, address); |
75172c0f NC |
994 | |
995 | if (addend > 0x7f || addend < -0x80) | |
996 | return bfd_reloc_overflow; | |
997 | ||
998 | bfd_put_8 (abfd, addend, address); | |
999 | return bfd_reloc_ok; | |
def31039 | 1000 | |
22a9f052 NC |
1001 | /* start-sanitize-v850e */ |
1002 | case R_V850_CALLT_16_16_OFFSET: | |
197de3ba | 1003 | addend += bfd_get_16 (abfd, address); |
75172c0f NC |
1004 | |
1005 | if (addend > 0xffff || addend < 0) | |
1006 | return bfd_reloc_overflow; | |
1007 | ||
1008 | insn = addend; | |
1009 | break; | |
22a9f052 | 1010 | /* end-sanitize-v850e */ |
75172c0f NC |
1011 | |
1012 | case R_V850_16: | |
197de3ba | 1013 | |
75172c0f | 1014 | /* drop through */ |
5ddf2a9e NC |
1015 | case R_V850_SDA_16_16_OFFSET: |
1016 | case R_V850_ZDA_16_16_OFFSET: | |
5bb28764 | 1017 | case R_V850_TDA_16_16_OFFSET: |
197de3ba | 1018 | addend += bfd_get_16 (abfd, address); |
22a9f052 NC |
1019 | |
1020 | if (addend > 0x7fff || addend < -0x8000) | |
5ddf2a9e | 1021 | return bfd_reloc_overflow; |
22a9f052 NC |
1022 | |
1023 | insn = addend; | |
1024 | break; | |
5ddf2a9e NC |
1025 | |
1026 | case R_V850_SDA_15_16_OFFSET: | |
1027 | case R_V850_ZDA_15_16_OFFSET: | |
22a9f052 | 1028 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1029 | addend += (insn & 0xfffe); |
22a9f052 NC |
1030 | |
1031 | if (addend > 0x7ffe || addend < -0x8000) | |
5ddf2a9e NC |
1032 | return bfd_reloc_overflow; |
1033 | ||
22a9f052 | 1034 | if (addend & 1) |
197de3ba | 1035 | return bfd_reloc_dangerous; |
5ddf2a9e | 1036 | |
75172c0f | 1037 | insn = (addend & ~1) | (insn & 1); |
22a9f052 | 1038 | break; |
5ddf2a9e NC |
1039 | |
1040 | case R_V850_TDA_6_8_OFFSET: | |
22a9f052 | 1041 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1042 | addend += ((insn & 0x7e) << 1); |
22a9f052 NC |
1043 | |
1044 | if (addend > 0xfc || addend < 0) | |
5ddf2a9e NC |
1045 | return bfd_reloc_overflow; |
1046 | ||
22a9f052 | 1047 | if (addend & 3) |
5ddf2a9e NC |
1048 | return bfd_reloc_dangerous; |
1049 | ||
5ddf2a9e | 1050 | insn &= 0xff81; |
22a9f052 NC |
1051 | insn |= (addend >> 1); |
1052 | break; | |
5ddf2a9e NC |
1053 | |
1054 | case R_V850_TDA_7_8_OFFSET: | |
22a9f052 | 1055 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1056 | addend += ((insn & 0x7f) << 1); |
22a9f052 NC |
1057 | |
1058 | if (addend > 0xfe || addend < 0) | |
5ddf2a9e NC |
1059 | return bfd_reloc_overflow; |
1060 | ||
22a9f052 | 1061 | if (addend & 1) |
5ddf2a9e NC |
1062 | return bfd_reloc_dangerous; |
1063 | ||
5ddf2a9e | 1064 | insn &= 0xff80; |
22a9f052 NC |
1065 | insn |= (addend >> 1); |
1066 | break; | |
5ddf2a9e NC |
1067 | |
1068 | case R_V850_TDA_7_7_OFFSET: | |
22a9f052 | 1069 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1070 | addend += insn & 0x7f; |
22a9f052 NC |
1071 | |
1072 | if (addend > 0x7f || addend < 0) | |
5ddf2a9e NC |
1073 | return bfd_reloc_overflow; |
1074 | ||
5ddf2a9e | 1075 | insn &= 0xff80; |
22a9f052 NC |
1076 | insn |= addend; |
1077 | break; | |
5ddf2a9e | 1078 | |
def31039 | 1079 | /* start-sanitize-v850e */ |
5ddf2a9e | 1080 | case R_V850_TDA_4_5_OFFSET: |
22a9f052 | 1081 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1082 | addend += ((insn & 0xf) << 1); |
22a9f052 NC |
1083 | |
1084 | if (addend > 0x1e || addend < 0) | |
5ddf2a9e NC |
1085 | return bfd_reloc_overflow; |
1086 | ||
22a9f052 | 1087 | if (addend & 1) |
5ddf2a9e NC |
1088 | return bfd_reloc_dangerous; |
1089 | ||
5ddf2a9e | 1090 | insn &= 0xfff0; |
22a9f052 NC |
1091 | insn |= (addend >> 1); |
1092 | break; | |
5ddf2a9e NC |
1093 | |
1094 | case R_V850_TDA_4_4_OFFSET: | |
22a9f052 | 1095 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1096 | addend += insn & 0xf; |
22a9f052 NC |
1097 | |
1098 | if (addend > 0xf || addend < 0) | |
5ddf2a9e NC |
1099 | return bfd_reloc_overflow; |
1100 | ||
5ddf2a9e | 1101 | insn &= 0xfff0; |
22a9f052 NC |
1102 | insn |= addend; |
1103 | break; | |
5ddf2a9e NC |
1104 | |
1105 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
1106 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
22a9f052 | 1107 | insn = bfd_get_32 (abfd, address); |
197de3ba | 1108 | addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); |
5ddf2a9e | 1109 | |
75172c0f | 1110 | if (addend > 0x7fff || addend < -0x8000) |
22a9f052 | 1111 | return bfd_reloc_overflow; |
5ddf2a9e NC |
1112 | |
1113 | insn &= 0x0001ffdf; | |
22a9f052 NC |
1114 | insn |= (addend & 1) << 5; |
1115 | insn |= (addend & ~1) << 16; | |
5ddf2a9e | 1116 | |
22a9f052 | 1117 | bfd_put_32 (abfd, insn, address); |
5ddf2a9e | 1118 | return bfd_reloc_ok; |
9420c20a NC |
1119 | |
1120 | case R_V850_CALLT_6_7_OFFSET: | |
22a9f052 | 1121 | insn = bfd_get_16 (abfd, address); |
197de3ba | 1122 | addend += ((insn & 0x3f) << 1); |
22a9f052 NC |
1123 | |
1124 | if (addend > 0x7e || addend < 0) | |
9420c20a NC |
1125 | return bfd_reloc_overflow; |
1126 | ||
22a9f052 | 1127 | if (addend & 1) |
9420c20a NC |
1128 | return bfd_reloc_dangerous; |
1129 | ||
9420c20a | 1130 | insn &= 0xff80; |
22a9f052 NC |
1131 | insn |= (addend >> 1); |
1132 | break; | |
1133 | /* end-sanitize-v850e */ | |
1134 | } | |
1135 | ||
1136 | bfd_put_16 (abfd, insn, address); | |
1137 | return bfd_reloc_ok; | |
1138 | } | |
1139 | ||
1140 | \f | |
1141 | /* Insert the addend into the instruction. */ | |
1142 | static bfd_reloc_status_type | |
1143 | v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err) | |
1144 | bfd * abfd; | |
1145 | arelent * reloc; | |
1146 | asymbol * symbol; | |
1147 | PTR data; | |
1148 | asection * isection; | |
1149 | bfd * obfd; | |
1150 | char ** err; | |
1151 | { | |
1152 | long relocation; | |
22a9f052 NC |
1153 | |
1154 | /* If there is an output BFD, | |
1155 | and the symbol is not a section name (which is only defined at final link time), | |
1156 | and either we are not putting the addend into the instruction | |
1157 | or the addend is zero, so there is nothing to add into the instruction | |
1158 | then just fixup the address and return. */ | |
1159 | if (obfd != (bfd *) NULL | |
1160 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1161 | && (! reloc->howto->partial_inplace | |
1162 | || reloc->addend == 0)) | |
1163 | { | |
1164 | reloc->address += isection->output_offset; | |
9420c20a | 1165 | return bfd_reloc_ok; |
22a9f052 NC |
1166 | } |
1167 | #if 0 | |
1168 | else if (obfd != NULL) | |
1169 | { | |
1170 | return bfd_reloc_continue; | |
1171 | } | |
1172 | #endif | |
1173 | ||
1174 | /* Catch relocs involving undefined symbols. */ | |
1175 | if (bfd_is_und_section (symbol->section) | |
1176 | && (symbol->flags & BSF_WEAK) == 0 | |
1177 | && obfd == NULL) | |
1178 | return bfd_reloc_undefined; | |
1179 | ||
1180 | /* We handle final linking of some relocs ourselves. */ | |
1181 | ||
1182 | /* Is the address of the relocation really within the section? */ | |
1183 | if (reloc->address > isection->_cooked_size) | |
1184 | return bfd_reloc_outofrange; | |
1185 | ||
1186 | /* Work out which section the relocation is targetted at and the | |
1187 | initial relocation command value. */ | |
1188 | ||
1189 | /* Get symbol value. (Common symbols are special.) */ | |
1190 | if (bfd_is_com_section (symbol->section)) | |
1191 | relocation = 0; | |
1192 | else | |
1193 | relocation = symbol->value; | |
1194 | ||
1195 | /* Convert input-section-relative symbol value to absolute + addend. */ | |
1196 | relocation += symbol->section->output_section->vma; | |
1197 | relocation += symbol->section->output_offset; | |
1198 | relocation += reloc->addend; | |
1199 | ||
1200 | if (reloc->howto->pc_relative == true) | |
1201 | { | |
1202 | /* Here the variable relocation holds the final address of the | |
1203 | symbol we are relocating against, plus any addend. */ | |
1204 | relocation -= isection->output_section->vma + isection->output_offset; | |
9420c20a | 1205 | |
22a9f052 NC |
1206 | /* Deal with pcrel_offset */ |
1207 | relocation -= reloc->address; | |
e73b6ae6 JL |
1208 | } |
1209 | ||
197de3ba CM |
1210 | reloc->addend = relocation; |
1211 | return bfd_reloc_ok; | |
e73b6ae6 JL |
1212 | } |
1213 | ||
de224d6a | 1214 | \f |
1336da39 SG |
1215 | /*ARGSUSED*/ |
1216 | static boolean | |
8988d935 | 1217 | v850_elf_is_local_label_name (abfd, name) |
9420c20a NC |
1218 | bfd * abfd; |
1219 | const char * name; | |
1336da39 | 1220 | { |
22a9f052 NC |
1221 | return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) |
1222 | || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); | |
1336da39 SG |
1223 | } |
1224 | ||
de224d6a | 1225 | \f |
725b96f5 JL |
1226 | /* Perform a relocation as part of a final link. */ |
1227 | static bfd_reloc_status_type | |
de224d6a | 1228 | v850_elf_final_link_relocate (howto, input_bfd, output_bfd, |
725b96f5 JL |
1229 | input_section, contents, offset, value, |
1230 | addend, info, sym_sec, is_local) | |
def31039 NC |
1231 | reloc_howto_type * howto; |
1232 | bfd * input_bfd; | |
1233 | bfd * output_bfd; | |
1234 | asection * input_section; | |
1235 | bfd_byte * contents; | |
1236 | bfd_vma offset; | |
1237 | bfd_vma value; | |
1238 | bfd_vma addend; | |
1239 | struct bfd_link_info * info; | |
1240 | asection * sym_sec; | |
1241 | int is_local; | |
725b96f5 | 1242 | { |
def31039 NC |
1243 | unsigned long r_type = howto->type; |
1244 | bfd_byte * hit_data = contents + offset; | |
725b96f5 | 1245 | |
75172c0f | 1246 | /* Adjust the value according to the relocation. */ |
725b96f5 JL |
1247 | switch (r_type) |
1248 | { | |
1249 | case R_V850_9_PCREL: | |
1250 | value -= (input_section->output_section->vma | |
1251 | + input_section->output_offset); | |
1252 | value -= offset; | |
75172c0f | 1253 | break; |
725b96f5 JL |
1254 | |
1255 | case R_V850_22_PCREL: | |
1256 | value -= (input_section->output_section->vma | |
22a9f052 NC |
1257 | + input_section->output_offset |
1258 | + offset); | |
1259 | ||
1260 | value = SEXT24 (value); /* Only the bottom 24 bits of the PC are valid */ | |
75172c0f | 1261 | break; |
725b96f5 JL |
1262 | |
1263 | case R_V850_HI16_S: | |
725b96f5 | 1264 | case R_V850_HI16: |
725b96f5 | 1265 | case R_V850_LO16: |
725b96f5 | 1266 | case R_V850_16: |
75172c0f NC |
1267 | case R_V850_32: |
1268 | case R_V850_8: | |
1269 | break; | |
725b96f5 | 1270 | |
def31039 | 1271 | case R_V850_ZDA_15_16_OFFSET: |
75172c0f NC |
1272 | case R_V850_ZDA_16_16_OFFSET: |
1273 | /* start-sanitize-v850e */ | |
1274 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
1275 | /* end-sanitize-v850e */ | |
db1fa6ab NC |
1276 | if (sym_sec == NULL) |
1277 | return bfd_reloc_undefined; | |
1278 | ||
def31039 | 1279 | value -= sym_sec->output_section->vma; |
75172c0f | 1280 | break; |
725b96f5 | 1281 | |
75172c0f | 1282 | case R_V850_SDA_15_16_OFFSET: |
def31039 | 1283 | case R_V850_SDA_16_16_OFFSET: |
75172c0f NC |
1284 | /* start-sanitize-v850e */ |
1285 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1286 | /* end-sanitize-v850e */ | |
725b96f5 | 1287 | { |
def31039 NC |
1288 | unsigned long gp; |
1289 | struct bfd_link_hash_entry * h; | |
725b96f5 | 1290 | |
75172c0f NC |
1291 | if (sym_sec == NULL) |
1292 | return bfd_reloc_undefined; | |
db1fa6ab | 1293 | |
def31039 NC |
1294 | /* Get the value of __gp. */ |
1295 | h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true); | |
1296 | if (h == (struct bfd_link_hash_entry *) NULL | |
1297 | || h->type != bfd_link_hash_defined) | |
1298 | return bfd_reloc_other; | |
1299 | ||
1300 | gp = (h->u.def.value | |
1301 | + h->u.def.section->output_section->vma | |
1302 | + h->u.def.section->output_offset); | |
75172c0f | 1303 | |
def31039 NC |
1304 | value -= sym_sec->output_section->vma; |
1305 | value -= (gp - sym_sec->output_section->vma); | |
5bb28764 | 1306 | } |
75172c0f | 1307 | break; |
5bb28764 | 1308 | |
def31039 | 1309 | /* start-sanitize-v850e */ |
75172c0f | 1310 | case R_V850_TDA_4_4_OFFSET: |
def31039 | 1311 | case R_V850_TDA_4_5_OFFSET: |
75172c0f NC |
1312 | /* end-sanitize-v850e */ |
1313 | case R_V850_TDA_16_16_OFFSET: | |
1314 | case R_V850_TDA_7_7_OFFSET: | |
1315 | case R_V850_TDA_7_8_OFFSET: | |
1316 | case R_V850_TDA_6_8_OFFSET: | |
def31039 NC |
1317 | { |
1318 | unsigned long ep; | |
1319 | struct bfd_link_hash_entry * h; | |
1320 | ||
1321 | /* Get the value of __ep. */ | |
1322 | h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true); | |
1323 | if (h == (struct bfd_link_hash_entry *) NULL | |
1324 | || h->type != bfd_link_hash_defined) | |
1325 | return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */ | |
c322f1b5 | 1326 | |
def31039 NC |
1327 | ep = (h->u.def.value |
1328 | + h->u.def.section->output_section->vma | |
1329 | + h->u.def.section->output_offset); | |
c322f1b5 | 1330 | |
def31039 | 1331 | value -= ep; |
def31039 | 1332 | } |
75172c0f | 1333 | break; |
def31039 | 1334 | |
75172c0f | 1335 | /* start-sanitize-v850e */ |
9420c20a NC |
1336 | case R_V850_CALLT_6_7_OFFSET: |
1337 | { | |
1338 | unsigned long ctbp; | |
1339 | struct bfd_link_hash_entry * h; | |
1340 | ||
1341 | /* Get the value of __ctbp. */ | |
1342 | h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true); | |
1343 | if (h == (struct bfd_link_hash_entry *) NULL | |
1344 | || h->type != bfd_link_hash_defined) | |
676d3f02 | 1345 | return (bfd_reloc_dangerous + 1); /* Actually this indicates that __ctbp could not be found. */ |
9420c20a NC |
1346 | |
1347 | ctbp = (h->u.def.value | |
1348 | + h->u.def.section->output_section->vma | |
1349 | + h->u.def.section->output_offset); | |
1350 | value -= ctbp; | |
9420c20a | 1351 | } |
75172c0f | 1352 | break; |
def31039 | 1353 | |
9420c20a | 1354 | case R_V850_CALLT_16_16_OFFSET: |
9420c20a NC |
1355 | { |
1356 | unsigned long ctbp; | |
1357 | struct bfd_link_hash_entry * h; | |
1358 | ||
75172c0f NC |
1359 | if (sym_sec == NULL) |
1360 | return bfd_reloc_undefined; | |
1361 | ||
9420c20a NC |
1362 | /* Get the value of __ctbp. */ |
1363 | h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true); | |
1364 | if (h == (struct bfd_link_hash_entry *) NULL | |
1365 | || h->type != bfd_link_hash_defined) | |
676d3f02 | 1366 | return (bfd_reloc_dangerous + 1); |
9420c20a NC |
1367 | |
1368 | ctbp = (h->u.def.value | |
1369 | + h->u.def.section->output_section->vma | |
1370 | + h->u.def.section->output_offset); | |
1371 | ||
1372 | value -= sym_sec->output_section->vma; | |
1373 | value -= (ctbp - sym_sec->output_section->vma); | |
9420c20a | 1374 | } |
75172c0f | 1375 | break; |
9420c20a | 1376 | /* end-sanitize-v850e */ |
75172c0f | 1377 | |
725b96f5 | 1378 | case R_V850_NONE: |
8988d935 NC |
1379 | return bfd_reloc_ok; |
1380 | ||
725b96f5 | 1381 | default: |
8988d935 | 1382 | return bfd_reloc_notsupported; |
725b96f5 | 1383 | } |
75172c0f NC |
1384 | |
1385 | /* Perform the relocation. */ | |
197de3ba CM |
1386 | return v850_elf_perform_relocation (input_bfd, r_type, value+addend, hit_data); |
1387 | ||
725b96f5 JL |
1388 | } |
1389 | ||
de224d6a | 1390 | \f |
725b96f5 | 1391 | /* Relocate an V850 ELF section. */ |
725b96f5 JL |
1392 | static boolean |
1393 | v850_elf_relocate_section (output_bfd, info, input_bfd, input_section, | |
de224d6a | 1394 | contents, relocs, local_syms, local_sections) |
def31039 NC |
1395 | bfd * output_bfd; |
1396 | struct bfd_link_info * info; | |
1397 | bfd * input_bfd; | |
1398 | asection * input_section; | |
1399 | bfd_byte * contents; | |
1400 | Elf_Internal_Rela * relocs; | |
1401 | Elf_Internal_Sym * local_syms; | |
1402 | asection ** local_sections; | |
725b96f5 | 1403 | { |
def31039 NC |
1404 | Elf_Internal_Shdr * symtab_hdr; |
1405 | struct elf_link_hash_entry ** sym_hashes; | |
1406 | Elf_Internal_Rela * rel; | |
1407 | Elf_Internal_Rela * relend; | |
725b96f5 | 1408 | |
def31039 | 1409 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
725b96f5 JL |
1410 | sym_hashes = elf_sym_hashes (input_bfd); |
1411 | ||
def31039 | 1412 | rel = relocs; |
725b96f5 JL |
1413 | relend = relocs + input_section->reloc_count; |
1414 | for (; rel < relend; rel++) | |
1415 | { | |
def31039 NC |
1416 | int r_type; |
1417 | reloc_howto_type * howto; | |
1418 | unsigned long r_symndx; | |
1419 | Elf_Internal_Sym * sym; | |
1420 | asection * sec; | |
1421 | struct elf_link_hash_entry * h; | |
1422 | bfd_vma relocation; | |
1423 | bfd_reloc_status_type r; | |
725b96f5 | 1424 | |
8988d935 | 1425 | r_symndx = ELF32_R_SYM (rel->r_info); |
def31039 NC |
1426 | r_type = ELF32_R_TYPE (rel->r_info); |
1427 | howto = v850_elf_howto_table + r_type; | |
8988d935 | 1428 | |
725b96f5 JL |
1429 | if (info->relocateable) |
1430 | { | |
1431 | /* This is a relocateable link. We don't have to change | |
1432 | anything, unless the reloc is against a section symbol, | |
1433 | in which case we have to adjust according to where the | |
1434 | section symbol winds up in the output section. */ | |
1435 | if (r_symndx < symtab_hdr->sh_info) | |
1436 | { | |
1437 | sym = local_syms + r_symndx; | |
1438 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1439 | { | |
1440 | sec = local_sections[r_symndx]; | |
1441 | rel->r_addend += sec->output_offset + sym->st_value; | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | continue; | |
1446 | } | |
1447 | ||
725b96f5 JL |
1448 | /* This is a final link. */ |
1449 | h = NULL; | |
1450 | sym = NULL; | |
1451 | sec = NULL; | |
1452 | if (r_symndx < symtab_hdr->sh_info) | |
1453 | { | |
1454 | sym = local_syms + r_symndx; | |
1455 | sec = local_sections[r_symndx]; | |
1456 | relocation = (sec->output_section->vma | |
1457 | + sec->output_offset | |
1458 | + sym->st_value); | |
def31039 NC |
1459 | #if 0 |
1460 | { | |
1461 | char * name; | |
1462 | name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
1463 | name = (name == NULL) ? "<none>" : name; | |
75172c0f NC |
1464 | fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", |
1465 | sec->name, name, sym->st_name, | |
1466 | sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend); | |
def31039 NC |
1467 | } |
1468 | #endif | |
725b96f5 JL |
1469 | } |
1470 | else | |
1471 | { | |
1472 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
def31039 | 1473 | |
725b96f5 JL |
1474 | while (h->root.type == bfd_link_hash_indirect |
1475 | || h->root.type == bfd_link_hash_warning) | |
1476 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
def31039 | 1477 | |
725b96f5 JL |
1478 | if (h->root.type == bfd_link_hash_defined |
1479 | || h->root.type == bfd_link_hash_defweak) | |
1480 | { | |
1481 | sec = h->root.u.def.section; | |
1482 | relocation = (h->root.u.def.value | |
1483 | + sec->output_section->vma | |
1484 | + sec->output_offset); | |
676d3f02 NC |
1485 | #if 0 |
1486 | fprintf (stderr, "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n", | |
1487 | sec->name, h->root.root.string, h->root.u.def.value, sec->output_section->vma, sec->output_offset, relocation); | |
1488 | #endif | |
725b96f5 JL |
1489 | } |
1490 | else if (h->root.type == bfd_link_hash_undefweak) | |
676d3f02 NC |
1491 | { |
1492 | #if 0 | |
1493 | fprintf (stderr, "undefined: sec: %s, name: %s\n", | |
1494 | sec->name, h->root.root.string); | |
1495 | #endif | |
1496 | relocation = 0; | |
1497 | } | |
725b96f5 JL |
1498 | else |
1499 | { | |
1500 | if (! ((*info->callbacks->undefined_symbol) | |
1501 | (info, h->root.root.string, input_bfd, | |
1502 | input_section, rel->r_offset))) | |
1503 | return false; | |
676d3f02 NC |
1504 | #if 0 |
1505 | fprintf (stderr, "unknown: name: %s\n", h->root.root.string); | |
1506 | #endif | |
725b96f5 JL |
1507 | relocation = 0; |
1508 | } | |
1509 | } | |
1510 | ||
1511 | /* FIXME: We should use the addend, but the COFF relocations | |
1512 | don't. */ | |
de224d6a MM |
1513 | r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, |
1514 | input_section, | |
1515 | contents, rel->r_offset, | |
1516 | relocation, rel->r_addend, | |
1517 | info, sec, h == NULL); | |
725b96f5 JL |
1518 | |
1519 | if (r != bfd_reloc_ok) | |
1520 | { | |
def31039 NC |
1521 | const char * name; |
1522 | const char * msg = (const char *)0; | |
8988d935 NC |
1523 | |
1524 | if (h != NULL) | |
1525 | name = h->root.root.string; | |
1526 | else | |
1527 | { | |
1528 | name = (bfd_elf_string_from_elf_section | |
1529 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1530 | if (name == NULL || *name == '\0') | |
1531 | name = bfd_section_name (input_bfd, sec); | |
1532 | } | |
1533 | ||
725b96f5 JL |
1534 | switch (r) |
1535 | { | |
725b96f5 | 1536 | case bfd_reloc_overflow: |
8988d935 NC |
1537 | if (! ((*info->callbacks->reloc_overflow) |
1538 | (info, name, howto->name, (bfd_vma) 0, | |
1539 | input_bfd, input_section, rel->r_offset))) | |
1540 | return false; | |
1541 | break; | |
1542 | ||
1543 | case bfd_reloc_undefined: | |
1544 | if (! ((*info->callbacks->undefined_symbol) | |
1545 | (info, name, input_bfd, input_section, | |
1546 | rel->r_offset))) | |
1547 | return false; | |
1548 | break; | |
1549 | ||
1550 | case bfd_reloc_outofrange: | |
1551 | msg = "internal error: out of range error"; | |
1552 | goto common_error; | |
1553 | ||
1554 | case bfd_reloc_notsupported: | |
1555 | msg = "internal error: unsupported relocation error"; | |
1556 | goto common_error; | |
1557 | ||
1558 | case bfd_reloc_dangerous: | |
def31039 NC |
1559 | msg = "internal error: dangerous relocation"; |
1560 | goto common_error; | |
1561 | ||
1562 | case bfd_reloc_other: | |
1563 | msg = "could not locate special linker symbol __gp"; | |
1564 | goto common_error; | |
1565 | ||
1566 | case bfd_reloc_continue: | |
1567 | msg = "could not locate special linker symbol __ep"; | |
8988d935 NC |
1568 | goto common_error; |
1569 | ||
676d3f02 NC |
1570 | case (bfd_reloc_dangerous + 1): |
1571 | msg = "could not locate special linker symbol __ctbp"; | |
1572 | goto common_error; | |
1573 | ||
8988d935 NC |
1574 | default: |
1575 | msg = "internal error: unknown error"; | |
1576 | /* fall through */ | |
1577 | ||
1578 | common_error: | |
1579 | if (!((*info->callbacks->warning) | |
1580 | (info, msg, name, input_bfd, input_section, | |
1581 | rel->r_offset))) | |
1582 | return false; | |
725b96f5 JL |
1583 | break; |
1584 | } | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | return true; | |
1589 | } | |
01b49cb3 | 1590 | |
8988d935 | 1591 | /* Set the right machine number. */ |
8988d935 NC |
1592 | static boolean |
1593 | v850_elf_object_p (abfd) | |
1594 | bfd *abfd; | |
1595 | { | |
8bef8c30 | 1596 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) |
8988d935 NC |
1597 | { |
1598 | default: | |
8bef8c30 | 1599 | case E_V850_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, 0); break; |
8988d935 | 1600 | /* start-sanitize-v850e */ |
8bef8c30 | 1601 | case E_V850E_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); break; |
75172c0f | 1602 | case E_V850EA_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850ea); break; |
15d82b26 | 1603 | /* end-sanitize-v850e */ |
8988d935 | 1604 | } |
197de3ba | 1605 | return true; |
8988d935 NC |
1606 | } |
1607 | ||
8bef8c30 NC |
1608 | /* Store the machine number in the flags field. */ |
1609 | void | |
1610 | v850_elf_final_write_processing (abfd, linker) | |
1611 | bfd * abfd; | |
1612 | boolean linker; | |
1613 | { | |
1614 | unsigned long val; | |
1615 | ||
1616 | switch (bfd_get_mach (abfd)) | |
1617 | { | |
1618 | default: | |
1619 | case 0: val = E_V850_ARCH; break; | |
8988d935 | 1620 | /* start-sanitize-v850e */ |
15d82b26 | 1621 | case bfd_mach_v850e: val = E_V850E_ARCH; break; |
75172c0f | 1622 | case bfd_mach_v850ea: val = E_V850EA_ARCH; break; |
15d82b26 | 1623 | /* end-sanitize-v850e */ |
8bef8c30 NC |
1624 | } |
1625 | ||
1626 | elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; | |
1627 | elf_elfheader (abfd)->e_flags |= val; | |
1628 | } | |
1629 | ||
1630 | /* Function to keep V850 specific file flags. */ | |
1631 | boolean | |
1632 | v850_elf_set_private_flags (abfd, flags) | |
1633 | bfd * abfd; | |
1634 | flagword flags; | |
1635 | { | |
1636 | BFD_ASSERT (!elf_flags_init (abfd) | |
1637 | || elf_elfheader (abfd)->e_flags == flags); | |
1638 | ||
1639 | elf_elfheader (abfd)->e_flags = flags; | |
1640 | elf_flags_init (abfd) = true; | |
1641 | return true; | |
1642 | } | |
1643 | ||
1644 | /* Copy backend specific data from one object module to another */ | |
1645 | boolean | |
1646 | v850_elf_copy_private_bfd_data (ibfd, obfd) | |
1647 | bfd * ibfd; | |
1648 | bfd * obfd; | |
1649 | { | |
1650 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1651 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1652 | return true; | |
1653 | ||
1654 | BFD_ASSERT (!elf_flags_init (obfd) | |
1655 | || (elf_elfheader (obfd)->e_flags | |
1656 | == elf_elfheader (ibfd)->e_flags)); | |
1657 | ||
1658 | elf_gp (obfd) = elf_gp (ibfd); | |
1659 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1660 | elf_flags_init (obfd) = true; | |
1661 | return true; | |
1662 | } | |
1663 | ||
1664 | /* Merge backend specific data from an object file to the output | |
1665 | object file when linking. */ | |
1666 | boolean | |
1667 | v850_elf_merge_private_bfd_data (ibfd, obfd) | |
1668 | bfd * ibfd; | |
1669 | bfd * obfd; | |
1670 | { | |
8b6dcc1b NC |
1671 | flagword out_flags; |
1672 | flagword in_flags; | |
8bef8c30 NC |
1673 | |
1674 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1675 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1676 | return true; | |
1677 | ||
8b6dcc1b NC |
1678 | in_flags = elf_elfheader (ibfd)->e_flags; |
1679 | out_flags = elf_elfheader (obfd)->e_flags; | |
8bef8c30 NC |
1680 | |
1681 | if (! elf_flags_init (obfd)) | |
1682 | { | |
8b6dcc1b NC |
1683 | /* If the input is the default architecture then do not |
1684 | bother setting the flags for the output architecture, | |
1685 | instead allow future merges to do this. If no future | |
1686 | merges ever set these flags then they will retain their | |
1687 | unitialised values, which surprise surprise, correspond | |
1688 | to the default values. */ | |
1689 | if (bfd_get_arch_info (ibfd)->the_default) | |
1690 | return true; | |
1691 | ||
8bef8c30 | 1692 | elf_flags_init (obfd) = true; |
8b6dcc1b | 1693 | elf_elfheader (obfd)->e_flags = in_flags; |
8bef8c30 NC |
1694 | |
1695 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1696 | && bfd_get_arch_info (obfd)->the_default) | |
1697 | { | |
1698 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
1699 | } | |
1700 | ||
1701 | return true; | |
1702 | } | |
1703 | ||
1704 | /* Check flag compatibility. */ | |
8b6dcc1b | 1705 | if (in_flags == out_flags) |
8bef8c30 NC |
1706 | return true; |
1707 | ||
8b6dcc1b NC |
1708 | if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) |
1709 | && (in_flags & EF_V850_ARCH) != E_V850_ARCH) | |
1710 | _bfd_error_handler ("%s: Architecture mismatch with previous modules", | |
1711 | bfd_get_filename (ibfd)); | |
8bef8c30 NC |
1712 | |
1713 | return true; | |
1714 | } | |
1715 | /* Display the flags field */ | |
1716 | ||
1717 | static boolean | |
1718 | v850_elf_print_private_bfd_data (abfd, ptr) | |
1719 | bfd * abfd; | |
1720 | PTR ptr; | |
1721 | { | |
1722 | FILE * file = (FILE *) ptr; | |
1723 | ||
1724 | BFD_ASSERT (abfd != NULL && ptr != NULL) | |
1725 | ||
197de3ba | 1726 | fprintf (file, "private flags = %lx", elf_elfheader (abfd)->e_flags); |
8bef8c30 NC |
1727 | |
1728 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) | |
1729 | { | |
1730 | default: | |
98ab32a5 | 1731 | case E_V850_ARCH: fprintf (file, ": v850 architecture"); break; |
8bef8c30 | 1732 | /* start-sanitize-v850e */ |
15d82b26 | 1733 | case E_V850E_ARCH: fprintf (file, ": v850e architecture"); break; |
75172c0f | 1734 | case E_V850EA_ARCH: fprintf (file, ": v850ea architecture"); break; |
15d82b26 | 1735 | /* end-sanitize-v850e */ |
8bef8c30 NC |
1736 | } |
1737 | ||
1738 | fputc ('\n', file); | |
1739 | ||
1740 | return true; | |
1741 | } | |
22a9f052 NC |
1742 | |
1743 | /* V850 ELF uses four common sections. One is the usual one, and the | |
1744 | others are for (small) objects in one of the special data areas: | |
1745 | small, tiny and zero. All the objects are kept together, and then | |
1746 | referenced via the gp register, the ep register or the r0 register | |
1747 | respectively, which yields smaller, faster assembler code. This | |
1748 | approach is copied from elf32-mips.c. */ | |
1749 | ||
1750 | static asection v850_elf_scom_section; | |
1751 | static asymbol v850_elf_scom_symbol; | |
1752 | static asymbol * v850_elf_scom_symbol_ptr; | |
1753 | static asection v850_elf_tcom_section; | |
1754 | static asymbol v850_elf_tcom_symbol; | |
1755 | static asymbol * v850_elf_tcom_symbol_ptr; | |
1756 | static asection v850_elf_zcom_section; | |
1757 | static asymbol v850_elf_zcom_symbol; | |
1758 | static asymbol * v850_elf_zcom_symbol_ptr; | |
1759 | ||
1760 | ||
1761 | /* Given a BFD section, try to locate the corresponding ELF section | |
1762 | index. */ | |
1763 | ||
1764 | static boolean | |
1765 | v850_elf_section_from_bfd_section (abfd, hdr, sec, retval) | |
1766 | bfd * abfd; | |
1767 | Elf32_Internal_Shdr * hdr; | |
1768 | asection * sec; | |
1769 | int * retval; | |
1770 | { | |
1771 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
1772 | { | |
1773 | *retval = SHN_V850_SCOMMON; | |
1774 | return true; | |
1775 | } | |
1776 | if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) | |
1777 | { | |
1778 | *retval = SHN_V850_TCOMMON; | |
1779 | return true; | |
1780 | } | |
1781 | if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) | |
1782 | { | |
1783 | *retval = SHN_V850_ZCOMMON; | |
1784 | return true; | |
1785 | } | |
1786 | return false; | |
1787 | } | |
1788 | ||
1789 | /* Handle the special V850 section numbers that a symbol may use. */ | |
1790 | ||
1791 | static void | |
1792 | v850_elf_symbol_processing (abfd, asym) | |
1793 | bfd * abfd; | |
1794 | asymbol * asym; | |
1795 | { | |
1796 | elf_symbol_type * elfsym = (elf_symbol_type *) asym; | |
1797 | ||
1798 | switch (elfsym->internal_elf_sym.st_shndx) | |
1799 | { | |
1800 | case SHN_V850_SCOMMON: | |
1801 | if (v850_elf_scom_section.name == NULL) | |
1802 | { | |
1803 | /* Initialize the small common section. */ | |
1804 | v850_elf_scom_section.name = ".scommon"; | |
1805 | v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; | |
1806 | v850_elf_scom_section.output_section = & v850_elf_scom_section; | |
1807 | v850_elf_scom_section.symbol = & v850_elf_scom_symbol; | |
1808 | v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; | |
1809 | v850_elf_scom_symbol.name = ".scommon"; | |
1810 | v850_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
1811 | v850_elf_scom_symbol.section = & v850_elf_scom_section; | |
1812 | v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; | |
1813 | } | |
1814 | asym->section = & v850_elf_scom_section; | |
1815 | asym->value = elfsym->internal_elf_sym.st_size; | |
1816 | break; | |
1817 | ||
1818 | case SHN_V850_TCOMMON: | |
1819 | if (v850_elf_tcom_section.name == NULL) | |
1820 | { | |
1821 | /* Initialize the tcommon section. */ | |
1822 | v850_elf_tcom_section.name = ".tcommon"; | |
1823 | v850_elf_tcom_section.flags = SEC_IS_COMMON; | |
1824 | v850_elf_tcom_section.output_section = & v850_elf_tcom_section; | |
1825 | v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; | |
1826 | v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; | |
1827 | v850_elf_tcom_symbol.name = ".tcommon"; | |
1828 | v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; | |
1829 | v850_elf_tcom_symbol.section = & v850_elf_tcom_section; | |
1830 | v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; | |
1831 | } | |
1832 | asym->section = & v850_elf_tcom_section; | |
1833 | asym->value = elfsym->internal_elf_sym.st_size; | |
1834 | break; | |
1835 | ||
1836 | case SHN_V850_ZCOMMON: | |
1837 | if (v850_elf_zcom_section.name == NULL) | |
1838 | { | |
1839 | /* Initialize the zcommon section. */ | |
1840 | v850_elf_zcom_section.name = ".zcommon"; | |
1841 | v850_elf_zcom_section.flags = SEC_IS_COMMON; | |
1842 | v850_elf_zcom_section.output_section = & v850_elf_zcom_section; | |
1843 | v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; | |
1844 | v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; | |
1845 | v850_elf_zcom_symbol.name = ".zcommon"; | |
1846 | v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; | |
1847 | v850_elf_zcom_symbol.section = & v850_elf_zcom_section; | |
1848 | v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; | |
1849 | } | |
1850 | asym->section = & v850_elf_zcom_section; | |
1851 | asym->value = elfsym->internal_elf_sym.st_size; | |
1852 | break; | |
1853 | } | |
1854 | } | |
1855 | ||
1856 | /* Hook called by the linker routine which adds symbols from an object | |
1857 | file. We must handle the special MIPS section numbers here. */ | |
1858 | ||
1859 | /*ARGSUSED*/ | |
1860 | static boolean | |
1861 | v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
1862 | bfd * abfd; | |
1863 | struct bfd_link_info * info; | |
1864 | const Elf_Internal_Sym * sym; | |
1865 | const char ** namep; | |
1866 | flagword * flagsp; | |
1867 | asection ** secp; | |
1868 | bfd_vma * valp; | |
1869 | { | |
1870 | switch (sym->st_shndx) | |
1871 | { | |
1872 | case SHN_V850_SCOMMON: | |
1873 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
1874 | (*secp)->flags |= SEC_IS_COMMON; | |
1875 | *valp = sym->st_size; | |
1876 | break; | |
1877 | ||
1878 | case SHN_V850_TCOMMON: | |
1879 | *secp = bfd_make_section_old_way (abfd, ".tcommon"); | |
1880 | (*secp)->flags |= SEC_IS_COMMON; | |
1881 | *valp = sym->st_size; | |
1882 | break; | |
1883 | ||
1884 | case SHN_V850_ZCOMMON: | |
1885 | *secp = bfd_make_section_old_way (abfd, ".zcommon"); | |
1886 | (*secp)->flags |= SEC_IS_COMMON; | |
1887 | *valp = sym->st_size; | |
1888 | break; | |
1889 | } | |
1890 | ||
1891 | return true; | |
1892 | } | |
1893 | ||
1894 | /*ARGSIGNORED*/ | |
1895 | static boolean | |
1896 | v850_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec) | |
1897 | bfd * abfd; | |
1898 | struct bfd_link_info * info; | |
1899 | const char * name; | |
1900 | Elf_Internal_Sym * sym; | |
1901 | asection * input_sec; | |
1902 | { | |
1903 | /* If we see a common symbol, which implies a relocatable link, then | |
1904 | if a symbol was in a special common section in an input file, mark | |
1905 | it as a special common in the output file. */ | |
1906 | ||
1907 | if (sym->st_shndx == SHN_COMMON) | |
1908 | { | |
1909 | if (strcmp (input_sec->name, ".scommon") == 0) | |
1910 | sym->st_shndx = SHN_V850_SCOMMON; | |
1911 | else if (strcmp (input_sec->name, ".tcommon") == 0) | |
1912 | sym->st_shndx = SHN_V850_TCOMMON; | |
1913 | else if (strcmp (input_sec->name, ".zcommon") == 0) | |
1914 | sym->st_shndx = SHN_V850_ZCOMMON; | |
1915 | } | |
1916 | ||
1917 | return true; | |
1918 | } | |
1919 | ||
1920 | static boolean | |
1921 | v850_elf_section_from_shdr (abfd, hdr, name) | |
1922 | bfd * abfd; | |
1923 | Elf_Internal_Shdr * hdr; | |
1924 | char * name; | |
1925 | { | |
1926 | /* There ought to be a place to keep ELF backend specific flags, but | |
1927 | at the moment there isn't one. We just keep track of the | |
1928 | sections by their name, instead. */ | |
1929 | ||
1930 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
1931 | return false; | |
1932 | ||
1933 | switch (hdr->sh_type) | |
1934 | { | |
1935 | case SHT_V850_SCOMMON: | |
1936 | case SHT_V850_TCOMMON: | |
1937 | case SHT_V850_ZCOMMON: | |
1938 | if (! bfd_set_section_flags (abfd, hdr->bfd_section, | |
1939 | (bfd_get_section_flags (abfd, | |
1940 | hdr->bfd_section) | |
1941 | | SEC_IS_COMMON))) | |
1942 | return false; | |
1943 | } | |
1944 | ||
1945 | return true; | |
1946 | } | |
1947 | ||
1948 | /* Set the correct type for a V850 ELF section. We do this by the | |
1949 | section name, which is a hack, but ought to work. */ | |
1950 | static boolean | |
1951 | v850_elf_fake_sections (abfd, hdr, sec) | |
1952 | bfd * abfd; | |
1953 | Elf32_Internal_Shdr * hdr; | |
1954 | asection * sec; | |
1955 | { | |
1956 | register const char * name; | |
1957 | ||
1958 | name = bfd_get_section_name (abfd, sec); | |
1959 | ||
1960 | if (strcmp (name, ".scommon") == 0) | |
1961 | { | |
1962 | hdr->sh_type = SHT_V850_SCOMMON; | |
1963 | } | |
1964 | else if (strcmp (name, ".tcommon") == 0) | |
1965 | { | |
1966 | hdr->sh_type = SHT_V850_TCOMMON; | |
1967 | } | |
1968 | else if (strcmp (name, ".zcommon") == 0) | |
1969 | hdr->sh_type = SHT_V850_ZCOMMON; | |
1970 | ||
1971 | return true; | |
1972 | } | |
1973 | ||
1974 | ||
8bef8c30 NC |
1975 | \f |
1976 | #define TARGET_LITTLE_SYM bfd_elf32_v850_vec | |
1977 | #define TARGET_LITTLE_NAME "elf32-v850" | |
1978 | #define ELF_ARCH bfd_arch_v850 | |
1979 | #define ELF_MACHINE_CODE EM_CYGNUS_V850 | |
de224d6a MM |
1980 | #define ELF_MAXPAGESIZE 0x1000 |
1981 | ||
197de3ba | 1982 | #define elf_info_to_howto v850_elf_info_to_howto_rela |
de224d6a | 1983 | #define elf_info_to_howto_rel v850_elf_info_to_howto_rel |
22a9f052 | 1984 | |
de224d6a MM |
1985 | #define elf_backend_check_relocs v850_elf_check_relocs |
1986 | #define elf_backend_relocate_section v850_elf_relocate_section | |
8988d935 | 1987 | #define elf_backend_object_p v850_elf_object_p |
8bef8c30 | 1988 | #define elf_backend_final_write_processing v850_elf_final_write_processing |
22a9f052 NC |
1989 | #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section |
1990 | #define elf_backend_symbol_processing v850_elf_symbol_processing | |
1991 | #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook | |
1992 | #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook | |
1993 | #define elf_backend_section_from_shdr v850_elf_section_from_shdr | |
1994 | #define elf_backend_fake_sections v850_elf_fake_sections | |
1995 | ||
8988d935 | 1996 | #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name |
de224d6a | 1997 | #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup |
8bef8c30 NC |
1998 | #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data |
1999 | #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data | |
2000 | #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags | |
2001 | #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data | |
de224d6a MM |
2002 | |
2003 | #define elf_symbol_leading_char '_' | |
1336da39 | 2004 | |
01b49cb3 | 2005 | #include "elf32-target.h" |