Commit | Line | Data |
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cd6213ff | 1 | /* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP). |
69f3f9f7 | 2 | Copyright 1996, 1997 Free Software Foundation, Inc. |
cd6213ff FF |
3 | |
4 | Written by Fred Fish (fnf@cygnus.com) | |
5 | ||
6 | There is nothing new under the sun. This file draws a lot on other | |
7 | coff files. | |
8 | ||
9 | This file is part of BFD, the Binary File Descriptor library. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
5a608f5b FF |
24 | |
25 | #include "bfd.h" | |
8ac5f940 | 26 | #include "bfdlink.h" |
5a608f5b FF |
27 | #include "sysdep.h" |
28 | #include "libbfd.h" | |
5a608f5b FF |
29 | #include "coff/tic80.h" |
30 | #include "coff/internal.h" | |
31 | #include "libcoff.h" | |
32 | ||
4507d858 | 33 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
c4188c2a FF |
34 | #define COFF_ALIGN_IN_SECTION_HEADER 1 |
35 | ||
36 | #define GET_SCNHDR_FLAGS bfd_h_get_16 | |
37 | #define PUT_SCNHDR_FLAGS bfd_h_put_16 | |
5a608f5b | 38 | |
8ac5f940 ILT |
39 | static void rtype2howto |
40 | PARAMS ((arelent *cache_ptr, struct internal_reloc *dst)); | |
41 | static bfd_reloc_status_type ppbase_reloc | |
42 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
43 | static bfd_reloc_status_type glob15_reloc | |
44 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
45 | static bfd_reloc_status_type glob16_reloc | |
46 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
47 | static bfd_reloc_status_type local16_reloc | |
48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
49 | static boolean coff_tic80_relocate_section | |
50 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
51 | struct internal_reloc *, struct internal_syment *, asection **)); | |
4507d858 FF |
52 | |
53 | static reloc_howto_type tic80_howto_table[] = | |
54 | { | |
55 | ||
56 | HOWTO (R_RELLONG, /* type */ | |
57 | 0, /* rightshift */ | |
58 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
59 | 32, /* bitsize */ | |
60 | false, /* pc_relative */ | |
61 | 0, /* bitpos */ | |
62 | complain_overflow_bitfield, /* complain_on_overflow */ | |
63 | NULL, /* special_function */ | |
8ac5f940 | 64 | "RELLONG", /* name */ |
4507d858 FF |
65 | true, /* partial_inplace */ |
66 | 0xffffffff, /* src_mask */ | |
67 | 0xffffffff, /* dst_mask */ | |
68 | false), /* pcrel_offset */ | |
69 | ||
70 | HOWTO (R_MPPCR, /* type */ | |
8ac5f940 | 71 | 2, /* rightshift */ |
4507d858 FF |
72 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
73 | 32, /* bitsize */ | |
74 | true, /* pc_relative */ | |
75 | 0, /* bitpos */ | |
8ac5f940 | 76 | complain_overflow_signed, /* complain_on_overflow */ |
4507d858 FF |
77 | NULL, /* special_function */ |
78 | "MPPCR", /* name */ | |
79 | true, /* partial_inplace */ | |
80 | 0xffffffff, /* src_mask */ | |
81 | 0xffffffff, /* dst_mask */ | |
82 | true), /* pcrel_offset */ | |
69f3f9f7 MA |
83 | |
84 | HOWTO (R_ABS, /* type */ | |
85 | 0, /* rightshift */ | |
86 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
87 | 32, /* bitsize */ | |
88 | false, /* pc_relative */ | |
89 | 0, /* bitpos */ | |
90 | complain_overflow_bitfield, /* complain_on_overflow */ | |
91 | NULL, /* special_function */ | |
92 | "ABS", /* name */ | |
93 | true, /* partial_inplace */ | |
94 | 0xffffffff, /* src_mask */ | |
95 | 0xffffffff, /* dst_mask */ | |
96 | false), /* pcrel_offset */ | |
8ac5f940 ILT |
97 | |
98 | HOWTO (R_PPBASE, /* type */ | |
99 | 0, /* rightshift */ | |
100 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
101 | 32, /* bitsize */ | |
102 | false, /* pc_relative */ | |
103 | 0, /* bitpos */ | |
546d7a90 | 104 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
105 | ppbase_reloc, /* special_function */ |
106 | "PPBASE", /* name */ | |
107 | true, /* partial_inplace */ | |
108 | 0xffffffff, /* src_mask */ | |
109 | 0xffffffff, /* dst_mask */ | |
110 | false), /* pcrel_offset */ | |
111 | ||
112 | HOWTO (R_PPLBASE, /* type */ | |
113 | 0, /* rightshift */ | |
114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
115 | 32, /* bitsize */ | |
116 | false, /* pc_relative */ | |
117 | 0, /* bitpos */ | |
546d7a90 | 118 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
119 | ppbase_reloc, /* special_function */ |
120 | "PPLBASE", /* name */ | |
121 | true, /* partial_inplace */ | |
122 | 0xffffffff, /* src_mask */ | |
123 | 0xffffffff, /* dst_mask */ | |
124 | false), /* pcrel_offset */ | |
125 | ||
126 | HOWTO (R_PP15, /* type */ | |
127 | 0, /* rightshift */ | |
128 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
129 | 15, /* bitsize */ | |
130 | false, /* pc_relative */ | |
131 | 6, /* bitpos */ | |
546d7a90 | 132 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
133 | glob15_reloc, /* special_function */ |
134 | "PP15", /* name */ | |
135 | true, /* partial_inplace */ | |
136 | 0x1ffc0, /* src_mask */ | |
137 | 0x1ffc0, /* dst_mask */ | |
138 | false), /* pcrel_offset */ | |
139 | ||
140 | HOWTO (R_PP15W, /* type */ | |
141 | 2, /* rightshift */ | |
142 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
143 | 15, /* bitsize */ | |
144 | false, /* pc_relative */ | |
145 | 6, /* bitpos */ | |
546d7a90 | 146 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
147 | glob15_reloc, /* special_function */ |
148 | "PP15W", /* name */ | |
149 | true, /* partial_inplace */ | |
150 | 0x1ffc0, /* src_mask */ | |
151 | 0x1ffc0, /* dst_mask */ | |
152 | false), /* pcrel_offset */ | |
153 | ||
154 | HOWTO (R_PP15H, /* type */ | |
155 | 1, /* rightshift */ | |
156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 15, /* bitsize */ | |
158 | false, /* pc_relative */ | |
159 | 6, /* bitpos */ | |
546d7a90 | 160 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
161 | glob15_reloc, /* special_function */ |
162 | "PP15H", /* name */ | |
163 | true, /* partial_inplace */ | |
164 | 0x1ffc0, /* src_mask */ | |
165 | 0x1ffc0, /* dst_mask */ | |
166 | false), /* pcrel_offset */ | |
167 | ||
168 | HOWTO (R_PP16B, /* type */ | |
169 | 0, /* rightshift */ | |
170 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
171 | 16, /* bitsize */ | |
172 | false, /* pc_relative */ | |
173 | 6, /* bitpos */ | |
546d7a90 | 174 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
175 | glob16_reloc, /* special_function */ |
176 | "PP16B", /* name */ | |
177 | true, /* partial_inplace */ | |
178 | 0x3ffc0, /* src_mask */ | |
179 | 0x3ffc0, /* dst_mask */ | |
180 | false), /* pcrel_offset */ | |
181 | ||
182 | HOWTO (R_PPL15, /* type */ | |
183 | 0, /* rightshift */ | |
184 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
185 | 15, /* bitsize */ | |
186 | false, /* pc_relative */ | |
187 | 0, /* bitpos */ | |
546d7a90 | 188 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
189 | NULL, /* special_function */ |
190 | "PPL15", /* name */ | |
191 | true, /* partial_inplace */ | |
192 | 0x7fff, /* src_mask */ | |
193 | 0x7fff, /* dst_mask */ | |
194 | false), /* pcrel_offset */ | |
195 | ||
196 | HOWTO (R_PPL15W, /* type */ | |
197 | 2, /* rightshift */ | |
198 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
199 | 15, /* bitsize */ | |
200 | false, /* pc_relative */ | |
201 | 0, /* bitpos */ | |
546d7a90 | 202 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
203 | NULL, /* special_function */ |
204 | "PPL15W", /* name */ | |
205 | true, /* partial_inplace */ | |
206 | 0x7fff, /* src_mask */ | |
207 | 0x7fff, /* dst_mask */ | |
208 | false), /* pcrel_offset */ | |
209 | ||
210 | HOWTO (R_PPL15H, /* type */ | |
211 | 1, /* rightshift */ | |
212 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
213 | 15, /* bitsize */ | |
214 | false, /* pc_relative */ | |
215 | 0, /* bitpos */ | |
546d7a90 | 216 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
217 | NULL, /* special_function */ |
218 | "PPL15H", /* name */ | |
219 | true, /* partial_inplace */ | |
220 | 0x7fff, /* src_mask */ | |
221 | 0x7fff, /* dst_mask */ | |
222 | false), /* pcrel_offset */ | |
223 | ||
224 | HOWTO (R_PPL16B, /* type */ | |
225 | 0, /* rightshift */ | |
226 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
227 | 16, /* bitsize */ | |
228 | false, /* pc_relative */ | |
229 | 0, /* bitpos */ | |
546d7a90 | 230 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
231 | local16_reloc, /* special_function */ |
232 | "PPL16B", /* name */ | |
233 | true, /* partial_inplace */ | |
234 | 0xffff, /* src_mask */ | |
235 | 0xffff, /* dst_mask */ | |
236 | false), /* pcrel_offset */ | |
237 | ||
238 | HOWTO (R_PPN15, /* type */ | |
239 | 0, /* rightshift */ | |
240 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
241 | 15, /* bitsize */ | |
242 | false, /* pc_relative */ | |
243 | 6, /* bitpos */ | |
546d7a90 | 244 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
245 | glob15_reloc, /* special_function */ |
246 | "PPN15", /* name */ | |
247 | true, /* partial_inplace */ | |
248 | 0x1ffc0, /* src_mask */ | |
249 | 0x1ffc0, /* dst_mask */ | |
250 | false), /* pcrel_offset */ | |
251 | ||
252 | HOWTO (R_PPN15W, /* type */ | |
253 | 2, /* rightshift */ | |
254 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
255 | 15, /* bitsize */ | |
256 | false, /* pc_relative */ | |
257 | 6, /* bitpos */ | |
546d7a90 | 258 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
259 | glob15_reloc, /* special_function */ |
260 | "PPN15W", /* name */ | |
261 | true, /* partial_inplace */ | |
262 | 0x1ffc0, /* src_mask */ | |
263 | 0x1ffc0, /* dst_mask */ | |
264 | false), /* pcrel_offset */ | |
265 | ||
266 | HOWTO (R_PPN15H, /* type */ | |
267 | 1, /* rightshift */ | |
268 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
269 | 15, /* bitsize */ | |
270 | false, /* pc_relative */ | |
271 | 6, /* bitpos */ | |
546d7a90 | 272 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
273 | glob15_reloc, /* special_function */ |
274 | "PPN15H", /* name */ | |
275 | true, /* partial_inplace */ | |
276 | 0x1ffc0, /* src_mask */ | |
277 | 0x1ffc0, /* dst_mask */ | |
278 | false), /* pcrel_offset */ | |
279 | ||
280 | HOWTO (R_PPN16B, /* type */ | |
281 | 0, /* rightshift */ | |
282 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
283 | 16, /* bitsize */ | |
284 | false, /* pc_relative */ | |
285 | 6, /* bitpos */ | |
546d7a90 | 286 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
287 | glob16_reloc, /* special_function */ |
288 | "PPN16B", /* name */ | |
289 | true, /* partial_inplace */ | |
290 | 0x3ffc0, /* src_mask */ | |
291 | 0x3ffc0, /* dst_mask */ | |
292 | false), /* pcrel_offset */ | |
293 | ||
294 | HOWTO (R_PPLN15, /* type */ | |
295 | 0, /* rightshift */ | |
296 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
297 | 15, /* bitsize */ | |
298 | false, /* pc_relative */ | |
299 | 0, /* bitpos */ | |
546d7a90 | 300 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
301 | NULL, /* special_function */ |
302 | "PPLN15", /* name */ | |
303 | true, /* partial_inplace */ | |
304 | 0x7fff, /* src_mask */ | |
305 | 0x7fff, /* dst_mask */ | |
306 | false), /* pcrel_offset */ | |
307 | ||
308 | HOWTO (R_PPLN15W, /* type */ | |
309 | 2, /* rightshift */ | |
310 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
311 | 15, /* bitsize */ | |
312 | false, /* pc_relative */ | |
313 | 0, /* bitpos */ | |
546d7a90 | 314 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
315 | NULL, /* special_function */ |
316 | "PPLN15W", /* name */ | |
317 | true, /* partial_inplace */ | |
318 | 0x7fff, /* src_mask */ | |
319 | 0x7fff, /* dst_mask */ | |
320 | false), /* pcrel_offset */ | |
321 | ||
322 | HOWTO (R_PPLN15H, /* type */ | |
323 | 1, /* rightshift */ | |
324 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
325 | 15, /* bitsize */ | |
326 | false, /* pc_relative */ | |
327 | 0, /* bitpos */ | |
546d7a90 | 328 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
329 | NULL, /* special_function */ |
330 | "PPLN15H", /* name */ | |
331 | true, /* partial_inplace */ | |
332 | 0x7fff, /* src_mask */ | |
333 | 0x7fff, /* dst_mask */ | |
334 | false), /* pcrel_offset */ | |
335 | ||
336 | HOWTO (R_PPLN16B, /* type */ | |
337 | 0, /* rightshift */ | |
338 | -2, /* size (0 = byte, 1 = short, 2 = long) */ | |
339 | 15, /* bitsize */ | |
340 | false, /* pc_relative */ | |
341 | 0, /* bitpos */ | |
546d7a90 | 342 | complain_overflow_dont, /* complain_on_overflow */ |
8ac5f940 ILT |
343 | local16_reloc, /* special_function */ |
344 | "PPLN16B", /* name */ | |
345 | true, /* partial_inplace */ | |
346 | 0xffff, /* src_mask */ | |
347 | 0xffff, /* dst_mask */ | |
348 | false) /* pcrel_offset */ | |
4507d858 | 349 | }; |
8ac5f940 ILT |
350 | \f |
351 | /* Special relocation functions, used when the output file is not | |
352 | itself a COFF TIc80 file. */ | |
353 | ||
354 | /* This special function is used for the base address type | |
355 | relocations. */ | |
356 | ||
357 | static bfd_reloc_status_type | |
358 | ppbase_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
359 | error_message) | |
360 | bfd *abfd; | |
361 | arelent *reloc_entry; | |
362 | asymbol *symbol_in; | |
363 | PTR data; | |
364 | asection *input_section; | |
365 | bfd *output_bfd; | |
366 | char **error_message; | |
367 | { | |
368 | /* FIXME. */ | |
369 | abort (); | |
370 | } | |
371 | ||
372 | /* This special function is used for the global 15 bit relocations. */ | |
373 | ||
374 | static bfd_reloc_status_type | |
375 | glob15_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
376 | error_message) | |
377 | bfd *abfd; | |
378 | arelent *reloc_entry; | |
379 | asymbol *symbol_in; | |
380 | PTR data; | |
381 | asection *input_section; | |
382 | bfd *output_bfd; | |
383 | char **error_message; | |
384 | { | |
385 | /* FIXME. */ | |
386 | abort (); | |
387 | } | |
388 | ||
389 | /* This special function is used for the global 16 bit relocations. */ | |
390 | ||
391 | static bfd_reloc_status_type | |
392 | glob16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
393 | error_message) | |
394 | bfd *abfd; | |
395 | arelent *reloc_entry; | |
396 | asymbol *symbol_in; | |
397 | PTR data; | |
398 | asection *input_section; | |
399 | bfd *output_bfd; | |
400 | char **error_message; | |
401 | { | |
402 | /* FIXME. */ | |
403 | abort (); | |
404 | } | |
4507d858 | 405 | |
8ac5f940 ILT |
406 | /* This special function is used for the local 16 bit relocations. */ |
407 | ||
408 | static bfd_reloc_status_type | |
409 | local16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
410 | error_message) | |
411 | bfd *abfd; | |
412 | arelent *reloc_entry; | |
413 | asymbol *symbol_in; | |
414 | PTR data; | |
415 | asection *input_section; | |
416 | bfd *output_bfd; | |
417 | char **error_message; | |
418 | { | |
419 | /* FIXME. */ | |
420 | abort (); | |
421 | } | |
422 | \f | |
4507d858 | 423 | /* Code to turn an external r_type into a pointer to an entry in the howto_table. |
69f3f9f7 MA |
424 | If passed an r_type we don't recognize the abort rather than silently failing |
425 | to generate an output file. */ | |
4507d858 FF |
426 | |
427 | static void | |
428 | rtype2howto (cache_ptr, dst) | |
429 | arelent *cache_ptr; | |
430 | struct internal_reloc *dst; | |
431 | { | |
8ac5f940 ILT |
432 | unsigned int i; |
433 | ||
434 | for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++) | |
4507d858 | 435 | { |
8ac5f940 ILT |
436 | if (tic80_howto_table[i].type == dst->r_type) |
437 | { | |
438 | cache_ptr->howto = tic80_howto_table + i; | |
439 | return; | |
440 | } | |
4507d858 | 441 | } |
8ac5f940 ILT |
442 | |
443 | (*_bfd_error_handler) ("Unrecognized reloc type 0x%x", | |
444 | (unsigned int) dst->r_type); | |
445 | cache_ptr->howto = tic80_howto_table + 0; | |
4507d858 FF |
446 | } |
447 | ||
448 | #define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst) | |
449 | #define coff_rtype_to_howto coff_tic80_rtype_to_howto | |
450 | ||
451 | static reloc_howto_type * | |
452 | coff_tic80_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
453 | bfd *abfd; | |
454 | asection *sec; | |
455 | struct internal_reloc *rel; | |
456 | struct coff_link_hash_entry *h; | |
457 | struct internal_syment *sym; | |
458 | bfd_vma *addendp; | |
459 | { | |
460 | arelent genrel; | |
461 | ||
462 | if (rel -> r_symndx == -1 && addendp != NULL) | |
463 | { | |
464 | /* This is a TI "internal relocation", which means that the relocation | |
465 | amount is the amount by which the current section is being relocated | |
466 | in the output section. */ | |
467 | *addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma; | |
468 | } | |
469 | RTYPE2HOWTO (&genrel, rel); | |
470 | return genrel.howto; | |
471 | } | |
5a608f5b FF |
472 | |
473 | #ifndef BADMAG | |
474 | #define BADMAG(x) TIC80BADMAG(x) | |
475 | #endif | |
8ac5f940 ILT |
476 | \f |
477 | #define coff_relocate_section coff_tic80_relocate_section | |
478 | ||
479 | /* We need a special relocation routine to handle the PP relocs. Most | |
480 | of this is a copy of _bfd_coff_generic_relocate_section. */ | |
481 | ||
482 | static boolean | |
483 | coff_tic80_relocate_section (output_bfd, info, input_bfd, | |
484 | input_section, contents, relocs, syms, | |
485 | sections) | |
486 | bfd *output_bfd; | |
487 | struct bfd_link_info *info; | |
488 | bfd *input_bfd; | |
489 | asection *input_section; | |
490 | bfd_byte *contents; | |
491 | struct internal_reloc *relocs; | |
492 | struct internal_syment *syms; | |
493 | asection **sections; | |
494 | { | |
495 | struct internal_reloc *rel; | |
496 | struct internal_reloc *relend; | |
497 | ||
498 | rel = relocs; | |
499 | relend = rel + input_section->reloc_count; | |
500 | for (; rel < relend; rel++) | |
501 | { | |
502 | long symndx; | |
503 | struct coff_link_hash_entry *h; | |
504 | struct internal_syment *sym; | |
505 | bfd_vma addend; | |
506 | bfd_vma val; | |
507 | reloc_howto_type *howto; | |
508 | bfd_reloc_status_type rstat; | |
509 | bfd_vma addr; | |
5a608f5b | 510 | |
8ac5f940 ILT |
511 | symndx = rel->r_symndx; |
512 | ||
513 | if (symndx == -1) | |
514 | { | |
515 | h = NULL; | |
516 | sym = NULL; | |
517 | } | |
518 | else | |
519 | { | |
520 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
521 | sym = syms + symndx; | |
522 | } | |
523 | ||
524 | /* COFF treats common symbols in one of two ways. Either the | |
525 | size of the symbol is included in the section contents, or it | |
526 | is not. We assume that the size is not included, and force | |
527 | the rtype_to_howto function to adjust the addend as needed. */ | |
528 | ||
529 | if (sym != NULL && sym->n_scnum != 0) | |
530 | addend = - sym->n_value; | |
531 | else | |
532 | addend = 0; | |
533 | ||
534 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, | |
535 | sym, &addend); | |
536 | if (howto == NULL) | |
537 | return false; | |
538 | ||
539 | val = 0; | |
540 | ||
541 | if (h == NULL) | |
542 | { | |
543 | asection *sec; | |
544 | ||
545 | if (symndx == -1) | |
546 | { | |
547 | sec = bfd_abs_section_ptr; | |
548 | val = 0; | |
549 | } | |
550 | else | |
551 | { | |
552 | sec = sections[symndx]; | |
553 | val = (sec->output_section->vma | |
554 | + sec->output_offset | |
555 | + sym->n_value); | |
556 | if (! obj_pe (output_bfd)) | |
557 | val -= sec->vma; | |
558 | } | |
559 | } | |
560 | else | |
561 | { | |
562 | if (h->root.type == bfd_link_hash_defined | |
563 | || h->root.type == bfd_link_hash_defweak) | |
564 | { | |
565 | asection *sec; | |
566 | ||
567 | sec = h->root.u.def.section; | |
568 | val = (h->root.u.def.value | |
569 | + sec->output_section->vma | |
570 | + sec->output_offset); | |
571 | } | |
572 | ||
573 | else if (! info->relocateable) | |
574 | { | |
575 | if (! ((*info->callbacks->undefined_symbol) | |
576 | (info, h->root.root.string, input_bfd, input_section, | |
577 | rel->r_vaddr - input_section->vma))) | |
578 | return false; | |
579 | } | |
580 | } | |
581 | ||
582 | addr = rel->r_vaddr - input_section->vma; | |
583 | ||
584 | /* FIXME: This code assumes little endian, but the PP can | |
585 | apparently be bi-endian. I don't know if the bi-endianness | |
586 | applies to the instruction set or just to the data. */ | |
587 | switch (howto->type) | |
588 | { | |
589 | default: | |
590 | case R_ABS: | |
591 | case R_RELLONGX: | |
592 | case R_PPL15: | |
593 | case R_PPL15W: | |
594 | case R_PPL15H: | |
595 | case R_PPLN15: | |
596 | case R_PPLN15W: | |
597 | case R_PPLN15H: | |
598 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
599 | contents, addr, val, addend); | |
600 | break; | |
601 | ||
602 | case R_PP15: | |
603 | case R_PP15W: | |
604 | case R_PP15H: | |
605 | case R_PPN15: | |
606 | case R_PPN15W: | |
607 | case R_PPN15H: | |
608 | /* Offset the address so that we can use 4 byte relocations. */ | |
609 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
610 | contents + 2, addr, val, addend); | |
611 | break; | |
612 | ||
613 | case R_PP16B: | |
614 | case R_PPN16B: | |
615 | { | |
616 | /* The most significant bit is stored in bit 6. */ | |
617 | bfd_byte hold; | |
618 | ||
619 | hold = contents[addr + 4]; | |
620 | contents[addr + 4] &=~ 0x20; | |
621 | contents[addr + 4] |= (contents[addr] >> 1) & 0x20; | |
622 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
623 | contents + 2, addr, | |
624 | val, addend); | |
625 | contents[addr] &=~ 0x40; | |
626 | contents[addr] |= (contents[addr + 4] << 1) & 0x40; | |
627 | contents[addr + 4] &=~ 0x20; | |
628 | contents[addr + 4] |= hold & 0x20; | |
629 | break; | |
630 | } | |
631 | ||
632 | case R_PPL16B: | |
633 | case R_PPLN16B: | |
634 | { | |
635 | /* The most significant bit is stored in bit 28. */ | |
636 | bfd_byte hold; | |
637 | ||
638 | hold = contents[addr + 1]; | |
639 | contents[addr + 1] &=~ 0x80; | |
640 | contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80; | |
641 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
642 | contents, addr, | |
643 | val, addend); | |
644 | contents[addr + 3] &= ~0x10; | |
645 | contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10; | |
646 | contents[addr + 1] &=~ 0x80; | |
647 | contents[addr + 1] |= hold & 0x80; | |
648 | break; | |
649 | } | |
650 | ||
651 | case R_PPBASE: | |
652 | /* Parameter RAM is from 0x1000000 to 0x1000800. */ | |
653 | contents[addr] &=~ 0x3; | |
654 | if (val >= 0x1000000 && val < 0x1000800) | |
655 | contents[addr] |= 0x3; | |
656 | else | |
657 | contents[addr] |= 0x2; | |
658 | rstat = bfd_reloc_ok; | |
659 | break; | |
660 | ||
661 | case R_PPLBASE: | |
662 | /* Parameter RAM is from 0x1000000 to 0x1000800. */ | |
663 | contents[addr + 2] &= ~0xc0; | |
664 | if (val >= 0x1000000 && val < 0x1000800) | |
665 | contents[addr + 2] |= 0xc0; | |
666 | else | |
667 | contents[addr + 2] |= 0x80; | |
668 | rstat = bfd_reloc_ok; | |
669 | break; | |
670 | } | |
671 | ||
672 | switch (rstat) | |
673 | { | |
674 | default: | |
675 | abort (); | |
676 | case bfd_reloc_ok: | |
677 | break; | |
678 | case bfd_reloc_outofrange: | |
679 | (*_bfd_error_handler) | |
680 | ("%s: bad reloc address 0x%lx in section `%s'", | |
681 | bfd_get_filename (input_bfd), | |
682 | (unsigned long) rel->r_vaddr, | |
683 | bfd_get_section_name (input_bfd, input_section)); | |
684 | return false; | |
685 | case bfd_reloc_overflow: | |
686 | { | |
687 | const char *name; | |
688 | char buf[SYMNMLEN + 1]; | |
689 | ||
690 | if (symndx == -1) | |
691 | name = "*ABS*"; | |
692 | else if (h != NULL) | |
693 | name = h->root.root.string; | |
694 | else | |
695 | { | |
696 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
697 | if (name == NULL) | |
698 | return false; | |
699 | } | |
700 | ||
701 | if (! ((*info->callbacks->reloc_overflow) | |
702 | (info, name, howto->name, (bfd_vma) 0, input_bfd, | |
703 | input_section, rel->r_vaddr - input_section->vma))) | |
704 | return false; | |
705 | } | |
706 | } | |
707 | } | |
708 | return true; | |
709 | } | |
710 | \f | |
c4188c2a FF |
711 | #define TIC80COFF 1 /* Customize coffcode.h */ |
712 | #undef C_AUTOARG /* Clashes with TIc80's C_UEXT */ | |
713 | #undef C_LASTENT /* Clashes with TIc80's C_STATLAB */ | |
5a608f5b FF |
714 | #include "coffcode.h" |
715 | ||
716 | const bfd_target | |
5a608f5b | 717 | tic80coff_vec = |
5a608f5b | 718 | { |
5a608f5b | 719 | "coff-tic80", /* name */ |
5a608f5b | 720 | bfd_target_coff_flavour, |
0716c2e9 FF |
721 | BFD_ENDIAN_LITTLE, /* data byte order is little (arch supports both) */ |
722 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
5a608f5b FF |
723 | |
724 | (HAS_RELOC | EXEC_P | /* object flags */ | |
725 | HAS_LINENO | HAS_DEBUG | | |
726 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
727 | ||
728 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
d667d8f2 | 729 | '_', /* leading underscore */ |
5a608f5b FF |
730 | '/', /* ar_pad_char */ |
731 | 15, /* ar_max_namelen */ | |
4507d858 FF |
732 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
733 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
734 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
0716c2e9 FF |
735 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
736 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
737 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
5a608f5b FF |
738 | |
739 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
740 | bfd_generic_archive_p, _bfd_dummy_target}, | |
741 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
742 | bfd_false}, | |
743 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
744 | _bfd_write_archive_contents, bfd_false}, | |
745 | ||
746 | BFD_JUMP_TABLE_GENERIC (coff), | |
747 | BFD_JUMP_TABLE_COPY (coff), | |
748 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
749 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
750 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
751 | BFD_JUMP_TABLE_RELOCS (coff), | |
752 | BFD_JUMP_TABLE_WRITE (coff), | |
753 | BFD_JUMP_TABLE_LINK (coff), | |
754 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
755 | ||
756 | COFF_SWAP_TABLE | |
757 | }; |