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1 | /* BFD back-end for MIPS Extended-Coff files. |
2 | Copyright (C) 1990-2018 Free Software Foundation, Inc. | |
3 | Original version by Per Bothner. | |
4 | Full support added by Ian Lance Taylor, ian@cygnus.com. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libbfd.h" | |
27 | #include "coff/internal.h" | |
28 | #include "coff/sym.h" | |
29 | #include "coff/symconst.h" | |
30 | #include "coff/ecoff.h" | |
31 | #include "coff/mips.h" | |
32 | #include "libcoff.h" | |
33 | #include "libecoff.h" | |
34 | \f | |
35 | /* Prototypes for static functions. */ | |
36 | static bfd_reloc_status_type | |
37 | mips_generic_reloc | |
38 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
39 | static bfd_reloc_status_type | |
40 | mips_refhi_reloc | |
41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
42 | static bfd_reloc_status_type | |
43 | mips_reflo_reloc | |
44 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
45 | static bfd_reloc_status_type | |
46 | mips_gprel_reloc | |
47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
48 | ||
49 | \f | |
50 | /* ECOFF has COFF sections, but the debugging information is stored in | |
51 | a completely different format. ECOFF targets use some of the | |
52 | swapping routines from coffswap.h, and some of the generic COFF | |
53 | routines in coffgen.c, but, unlike the real COFF targets, do not | |
54 | use coffcode.h itself. | |
55 | ||
56 | Get the generic COFF swapping routines, except for the reloc, | |
57 | symbol, and lineno ones. Give them ECOFF names. */ | |
58 | #define MIPSECOFF | |
59 | #define NO_COFF_RELOCS | |
60 | #define NO_COFF_SYMBOLS | |
61 | #define NO_COFF_LINENOS | |
62 | #define coff_swap_filehdr_in mips_ecoff_swap_filehdr_in | |
63 | #define coff_swap_filehdr_out mips_ecoff_swap_filehdr_out | |
64 | #define coff_swap_aouthdr_in mips_ecoff_swap_aouthdr_in | |
65 | #define coff_swap_aouthdr_out mips_ecoff_swap_aouthdr_out | |
66 | #define coff_swap_scnhdr_in mips_ecoff_swap_scnhdr_in | |
67 | #define coff_swap_scnhdr_out mips_ecoff_swap_scnhdr_out | |
68 | ||
69 | #include "coffswap.h" | |
70 | ||
71 | /* Get the ECOFF swapping routines. */ | |
72 | #define ECOFF_32 | |
73 | #include "ecoffswap.h" | |
74 | \f | |
75 | /* How to process the various relocs types. */ | |
76 | ||
77 | static reloc_howto_type mips_howto_table[] = | |
78 | { | |
79 | /* Reloc type 0 is ignored. The reloc reading code ensures that | |
80 | this is a reference to the .abs section, which will cause | |
81 | bfd_perform_relocation to do nothing. */ | |
82 | HOWTO (MIPS_R_IGNORE, /* type */ | |
83 | 0, /* rightshift */ | |
84 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
85 | 8, /* bitsize */ | |
86 | FALSE, /* pc_relative */ | |
87 | 0, /* bitpos */ | |
88 | complain_overflow_dont, /* complain_on_overflow */ | |
89 | 0, /* special_function */ | |
90 | "IGNORE", /* name */ | |
91 | FALSE, /* partial_inplace */ | |
92 | 0, /* src_mask */ | |
93 | 0, /* dst_mask */ | |
94 | FALSE), /* pcrel_offset */ | |
95 | ||
96 | /* A 16 bit reference to a symbol, normally from a data section. */ | |
97 | HOWTO (MIPS_R_REFHALF, /* type */ | |
98 | 0, /* rightshift */ | |
99 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
100 | 16, /* bitsize */ | |
101 | FALSE, /* pc_relative */ | |
102 | 0, /* bitpos */ | |
103 | complain_overflow_bitfield, /* complain_on_overflow */ | |
104 | mips_generic_reloc, /* special_function */ | |
105 | "REFHALF", /* name */ | |
106 | TRUE, /* partial_inplace */ | |
107 | 0xffff, /* src_mask */ | |
108 | 0xffff, /* dst_mask */ | |
109 | FALSE), /* pcrel_offset */ | |
110 | ||
111 | /* A 32 bit reference to a symbol, normally from a data section. */ | |
112 | HOWTO (MIPS_R_REFWORD, /* type */ | |
113 | 0, /* rightshift */ | |
114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
115 | 32, /* bitsize */ | |
116 | FALSE, /* pc_relative */ | |
117 | 0, /* bitpos */ | |
118 | complain_overflow_bitfield, /* complain_on_overflow */ | |
119 | mips_generic_reloc, /* special_function */ | |
120 | "REFWORD", /* name */ | |
121 | TRUE, /* partial_inplace */ | |
122 | 0xffffffff, /* src_mask */ | |
123 | 0xffffffff, /* dst_mask */ | |
124 | FALSE), /* pcrel_offset */ | |
125 | ||
126 | /* A 26 bit absolute jump address. */ | |
127 | HOWTO (MIPS_R_JMPADDR, /* type */ | |
128 | 2, /* rightshift */ | |
129 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
130 | 26, /* bitsize */ | |
131 | FALSE, /* pc_relative */ | |
132 | 0, /* bitpos */ | |
133 | complain_overflow_dont, /* complain_on_overflow */ | |
134 | /* This needs complex overflow | |
135 | detection, because the upper four | |
136 | bits must match the PC. */ | |
137 | mips_generic_reloc, /* special_function */ | |
138 | "JMPADDR", /* name */ | |
139 | TRUE, /* partial_inplace */ | |
140 | 0x3ffffff, /* src_mask */ | |
141 | 0x3ffffff, /* dst_mask */ | |
142 | FALSE), /* pcrel_offset */ | |
143 | ||
144 | /* The high 16 bits of a symbol value. Handled by the function | |
145 | mips_refhi_reloc. */ | |
146 | HOWTO (MIPS_R_REFHI, /* type */ | |
147 | 16, /* rightshift */ | |
148 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 16, /* bitsize */ | |
150 | FALSE, /* pc_relative */ | |
151 | 0, /* bitpos */ | |
152 | complain_overflow_bitfield, /* complain_on_overflow */ | |
153 | mips_refhi_reloc, /* special_function */ | |
154 | "REFHI", /* name */ | |
155 | TRUE, /* partial_inplace */ | |
156 | 0xffff, /* src_mask */ | |
157 | 0xffff, /* dst_mask */ | |
158 | FALSE), /* pcrel_offset */ | |
159 | ||
160 | /* The low 16 bits of a symbol value. */ | |
161 | HOWTO (MIPS_R_REFLO, /* type */ | |
162 | 0, /* rightshift */ | |
163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
164 | 16, /* bitsize */ | |
165 | FALSE, /* pc_relative */ | |
166 | 0, /* bitpos */ | |
167 | complain_overflow_dont, /* complain_on_overflow */ | |
168 | mips_reflo_reloc, /* special_function */ | |
169 | "REFLO", /* name */ | |
170 | TRUE, /* partial_inplace */ | |
171 | 0xffff, /* src_mask */ | |
172 | 0xffff, /* dst_mask */ | |
173 | FALSE), /* pcrel_offset */ | |
174 | ||
175 | /* A reference to an offset from the gp register. Handled by the | |
176 | function mips_gprel_reloc. */ | |
177 | HOWTO (MIPS_R_GPREL, /* type */ | |
178 | 0, /* rightshift */ | |
179 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
180 | 16, /* bitsize */ | |
181 | FALSE, /* pc_relative */ | |
182 | 0, /* bitpos */ | |
183 | complain_overflow_signed, /* complain_on_overflow */ | |
184 | mips_gprel_reloc, /* special_function */ | |
185 | "GPREL", /* name */ | |
186 | TRUE, /* partial_inplace */ | |
187 | 0xffff, /* src_mask */ | |
188 | 0xffff, /* dst_mask */ | |
189 | FALSE), /* pcrel_offset */ | |
190 | ||
191 | /* A reference to a literal using an offset from the gp register. | |
192 | Handled by the function mips_gprel_reloc. */ | |
193 | HOWTO (MIPS_R_LITERAL, /* type */ | |
194 | 0, /* rightshift */ | |
195 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
196 | 16, /* bitsize */ | |
197 | FALSE, /* pc_relative */ | |
198 | 0, /* bitpos */ | |
199 | complain_overflow_signed, /* complain_on_overflow */ | |
200 | mips_gprel_reloc, /* special_function */ | |
201 | "LITERAL", /* name */ | |
202 | TRUE, /* partial_inplace */ | |
203 | 0xffff, /* src_mask */ | |
204 | 0xffff, /* dst_mask */ | |
205 | FALSE), /* pcrel_offset */ | |
206 | ||
207 | EMPTY_HOWTO (8), | |
208 | EMPTY_HOWTO (9), | |
209 | EMPTY_HOWTO (10), | |
210 | EMPTY_HOWTO (11), | |
211 | ||
212 | /* FIXME: This relocation is used (internally only) to represent branches | |
213 | when assembling. It should never appear in output files, and | |
214 | be removed. (It used to be used for embedded-PIC support.) */ | |
215 | HOWTO (MIPS_R_PCREL16, /* type */ | |
216 | 2, /* rightshift */ | |
217 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
218 | 16, /* bitsize */ | |
219 | TRUE, /* pc_relative */ | |
220 | 0, /* bitpos */ | |
221 | complain_overflow_signed, /* complain_on_overflow */ | |
222 | mips_generic_reloc, /* special_function */ | |
223 | "PCREL16", /* name */ | |
224 | TRUE, /* partial_inplace */ | |
225 | 0xffff, /* src_mask */ | |
226 | 0xffff, /* dst_mask */ | |
227 | TRUE), /* pcrel_offset */ | |
228 | }; | |
229 | ||
230 | #define MIPS_HOWTO_COUNT \ | |
231 | (sizeof mips_howto_table / sizeof mips_howto_table[0]) | |
232 | \f | |
233 | /* See whether the magic number matches. */ | |
234 | ||
235 | static bfd_boolean | |
236 | mips_ecoff_bad_format_hook (bfd * abfd, void * filehdr) | |
237 | { | |
238 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
239 | ||
240 | switch (internal_f->f_magic) | |
241 | { | |
242 | case MIPS_MAGIC_1: | |
243 | /* I don't know what endianness this implies. */ | |
244 | return TRUE; | |
245 | ||
246 | case MIPS_MAGIC_BIG: | |
247 | case MIPS_MAGIC_BIG2: | |
248 | case MIPS_MAGIC_BIG3: | |
249 | return bfd_big_endian (abfd); | |
250 | ||
251 | case MIPS_MAGIC_LITTLE: | |
252 | case MIPS_MAGIC_LITTLE2: | |
253 | case MIPS_MAGIC_LITTLE3: | |
254 | return bfd_little_endian (abfd); | |
255 | ||
256 | default: | |
257 | return FALSE; | |
258 | } | |
259 | } | |
260 | \f | |
261 | /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in | |
262 | external form. They use a bit which indicates whether the symbol | |
263 | is external. */ | |
264 | ||
265 | /* Swap a reloc in. */ | |
266 | ||
267 | static void | |
268 | mips_ecoff_swap_reloc_in (bfd * abfd, | |
269 | void * ext_ptr, | |
270 | struct internal_reloc *intern) | |
271 | { | |
272 | const RELOC *ext = (RELOC *) ext_ptr; | |
273 | ||
274 | intern->r_vaddr = H_GET_32 (abfd, ext->r_vaddr); | |
275 | if (bfd_header_big_endian (abfd)) | |
276 | { | |
277 | intern->r_symndx = (((int) ext->r_bits[0] | |
278 | << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) | |
279 | | ((int) ext->r_bits[1] | |
280 | << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) | |
281 | | ((int) ext->r_bits[2] | |
282 | << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); | |
283 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) | |
284 | >> RELOC_BITS3_TYPE_SH_BIG); | |
285 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; | |
286 | } | |
287 | else | |
288 | { | |
289 | intern->r_symndx = (((int) ext->r_bits[0] | |
290 | << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) | |
291 | | ((int) ext->r_bits[1] | |
292 | << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) | |
293 | | ((int) ext->r_bits[2] | |
294 | << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); | |
295 | intern->r_type = (((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) | |
296 | >> RELOC_BITS3_TYPE_SH_LITTLE) | |
297 | | ((ext->r_bits[3] & RELOC_BITS3_TYPEHI_LITTLE) | |
298 | << RELOC_BITS3_TYPEHI_SH_LITTLE)); | |
299 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; | |
300 | } | |
301 | } | |
302 | ||
303 | /* Swap a reloc out. */ | |
304 | ||
305 | static void | |
306 | mips_ecoff_swap_reloc_out (bfd * abfd, | |
307 | const struct internal_reloc * intern, | |
308 | void * dst) | |
309 | { | |
310 | RELOC *ext = (RELOC *) dst; | |
311 | long r_symndx; | |
312 | ||
313 | BFD_ASSERT (intern->r_extern | |
314 | || (intern->r_symndx >= 0 && intern->r_symndx <= 12)); | |
315 | ||
316 | r_symndx = intern->r_symndx; | |
317 | ||
318 | H_PUT_32 (abfd, intern->r_vaddr, ext->r_vaddr); | |
319 | if (bfd_header_big_endian (abfd)) | |
320 | { | |
321 | ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; | |
322 | ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; | |
323 | ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; | |
324 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) | |
325 | & RELOC_BITS3_TYPE_BIG) | |
326 | | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); | |
327 | } | |
328 | else | |
329 | { | |
330 | ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; | |
331 | ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; | |
332 | ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; | |
333 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) | |
334 | & RELOC_BITS3_TYPE_LITTLE) | |
335 | | ((intern->r_type >> RELOC_BITS3_TYPEHI_SH_LITTLE | |
336 | & RELOC_BITS3_TYPEHI_LITTLE)) | |
337 | | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); | |
338 | } | |
339 | } | |
340 | ||
341 | /* Finish canonicalizing a reloc. Part of this is generic to all | |
342 | ECOFF targets, and that part is in ecoff.c. The rest is done in | |
343 | this backend routine. It must fill in the howto field. */ | |
344 | ||
345 | static void | |
346 | mips_adjust_reloc_in (bfd *abfd, | |
347 | const struct internal_reloc *intern, | |
348 | arelent *rptr) | |
349 | { | |
350 | if (intern->r_type > MIPS_R_PCREL16) | |
351 | abort (); | |
352 | ||
353 | if (! intern->r_extern | |
354 | && (intern->r_type == MIPS_R_GPREL | |
355 | || intern->r_type == MIPS_R_LITERAL)) | |
356 | rptr->addend += ecoff_data (abfd)->gp; | |
357 | ||
358 | /* If the type is MIPS_R_IGNORE, make sure this is a reference to | |
359 | the absolute section so that the reloc is ignored. */ | |
360 | if (intern->r_type == MIPS_R_IGNORE) | |
361 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
362 | ||
363 | rptr->howto = &mips_howto_table[intern->r_type]; | |
364 | } | |
365 | ||
366 | /* Make any adjustments needed to a reloc before writing it out. None | |
367 | are needed for MIPS. */ | |
368 | ||
369 | static void | |
370 | mips_adjust_reloc_out (bfd *abfd ATTRIBUTE_UNUSED, | |
371 | const arelent *rel ATTRIBUTE_UNUSED, | |
372 | struct internal_reloc *intern ATTRIBUTE_UNUSED) | |
373 | { | |
374 | } | |
375 | ||
376 | /* ECOFF relocs are either against external symbols, or against | |
377 | sections. If we are producing relocatable output, and the reloc | |
378 | is against an external symbol, and nothing has given us any | |
379 | additional addend, the resulting reloc will also be against the | |
380 | same symbol. In such a case, we don't want to change anything | |
381 | about the way the reloc is handled, since it will all be done at | |
382 | final link time. Rather than put special case code into | |
383 | bfd_perform_relocation, all the reloc types use this howto | |
384 | function. It just short circuits the reloc if producing | |
385 | relocatable output against an external symbol. */ | |
386 | ||
387 | static bfd_reloc_status_type | |
388 | mips_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
389 | arelent *reloc_entry, | |
390 | asymbol *symbol, | |
391 | void * data ATTRIBUTE_UNUSED, | |
392 | asection *input_section, | |
393 | bfd *output_bfd, | |
394 | char **error_message ATTRIBUTE_UNUSED) | |
395 | { | |
396 | if (output_bfd != (bfd *) NULL | |
397 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
398 | && reloc_entry->addend == 0) | |
399 | { | |
400 | reloc_entry->address += input_section->output_offset; | |
401 | return bfd_reloc_ok; | |
402 | } | |
403 | ||
404 | return bfd_reloc_continue; | |
405 | } | |
406 | ||
407 | /* Do a REFHI relocation. This has to be done in combination with a | |
408 | REFLO reloc, because there is a carry from the REFLO to the REFHI. | |
409 | Here we just save the information we need; we do the actual | |
410 | relocation when we see the REFLO. MIPS ECOFF requires that the | |
411 | REFLO immediately follow the REFHI. As a GNU extension, we permit | |
412 | an arbitrary number of HI relocs to be associated with a single LO | |
413 | reloc. This extension permits gcc to output the HI and LO relocs | |
414 | itself. */ | |
415 | ||
416 | struct mips_hi | |
417 | { | |
418 | struct mips_hi *next; | |
419 | bfd_byte *addr; | |
420 | bfd_vma addend; | |
421 | }; | |
422 | ||
423 | /* FIXME: This should not be a static variable. */ | |
424 | ||
425 | static struct mips_hi *mips_refhi_list; | |
426 | ||
427 | static bfd_reloc_status_type | |
428 | mips_refhi_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
429 | arelent *reloc_entry, | |
430 | asymbol *symbol, | |
431 | void * data, | |
432 | asection *input_section, | |
433 | bfd *output_bfd, | |
434 | char **error_message ATTRIBUTE_UNUSED) | |
435 | { | |
436 | bfd_reloc_status_type ret; | |
437 | bfd_vma relocation; | |
438 | struct mips_hi *n; | |
439 | ||
440 | /* If we're relocating, and this an external symbol, we don't want | |
441 | to change anything. */ | |
442 | if (output_bfd != (bfd *) NULL | |
443 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
444 | && reloc_entry->addend == 0) | |
445 | { | |
446 | reloc_entry->address += input_section->output_offset; | |
447 | return bfd_reloc_ok; | |
448 | } | |
449 | ||
450 | ret = bfd_reloc_ok; | |
451 | if (bfd_is_und_section (symbol->section) | |
452 | && output_bfd == (bfd *) NULL) | |
453 | ret = bfd_reloc_undefined; | |
454 | ||
455 | if (bfd_is_com_section (symbol->section)) | |
456 | relocation = 0; | |
457 | else | |
458 | relocation = symbol->value; | |
459 | ||
460 | relocation += symbol->section->output_section->vma; | |
461 | relocation += symbol->section->output_offset; | |
462 | relocation += reloc_entry->addend; | |
463 | ||
464 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
465 | return bfd_reloc_outofrange; | |
466 | ||
467 | /* Save the information, and let REFLO do the actual relocation. */ | |
468 | n = (struct mips_hi *) bfd_malloc ((bfd_size_type) sizeof *n); | |
469 | if (n == NULL) | |
470 | return bfd_reloc_outofrange; | |
471 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
472 | n->addend = relocation; | |
473 | n->next = mips_refhi_list; | |
474 | mips_refhi_list = n; | |
475 | ||
476 | if (output_bfd != (bfd *) NULL) | |
477 | reloc_entry->address += input_section->output_offset; | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
482 | /* Do a REFLO relocation. This is a straightforward 16 bit inplace | |
483 | relocation; this function exists in order to do the REFHI | |
484 | relocation described above. */ | |
485 | ||
486 | static bfd_reloc_status_type | |
487 | mips_reflo_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
488 | arelent *reloc_entry, | |
489 | asymbol *symbol, | |
490 | void * data, | |
491 | asection *input_section, | |
492 | bfd *output_bfd, | |
493 | char **error_message ATTRIBUTE_UNUSED) | |
494 | { | |
495 | if (mips_refhi_list != NULL) | |
496 | { | |
497 | struct mips_hi *l; | |
498 | ||
499 | l = mips_refhi_list; | |
500 | while (l != NULL) | |
501 | { | |
502 | unsigned long insn; | |
503 | unsigned long val; | |
504 | unsigned long vallo; | |
505 | struct mips_hi *next; | |
506 | ||
507 | if (! bfd_reloc_offset_in_range (reloc_entry->howto, abfd, | |
508 | input_section, | |
509 | reloc_entry->address | |
510 | * bfd_octets_per_byte (abfd))) | |
511 | return bfd_reloc_outofrange; | |
512 | ||
513 | /* Do the REFHI relocation. Note that we actually don't | |
514 | need to know anything about the REFLO itself, except | |
515 | where to find the low 16 bits of the addend needed by the | |
516 | REFHI. */ | |
517 | insn = bfd_get_32 (abfd, l->addr); | |
518 | vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) | |
519 | & 0xffff); | |
520 | val = ((insn & 0xffff) << 16) + vallo; | |
521 | val += l->addend; | |
522 | ||
523 | /* The low order 16 bits are always treated as a signed | |
524 | value. Therefore, a negative value in the low order bits | |
525 | requires an adjustment in the high order bits. We need | |
526 | to make this adjustment in two ways: once for the bits we | |
527 | took from the data, and once for the bits we are putting | |
528 | back in to the data. */ | |
529 | if ((vallo & 0x8000) != 0) | |
530 | val -= 0x10000; | |
531 | if ((val & 0x8000) != 0) | |
532 | val += 0x10000; | |
533 | ||
534 | insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff); | |
535 | bfd_put_32 (abfd, (bfd_vma) insn, l->addr); | |
536 | ||
537 | next = l->next; | |
538 | free (l); | |
539 | l = next; | |
540 | } | |
541 | ||
542 | mips_refhi_list = NULL; | |
543 | } | |
544 | ||
545 | /* Now do the REFLO reloc in the usual way. */ | |
546 | return mips_generic_reloc (abfd, reloc_entry, symbol, data, | |
547 | input_section, output_bfd, error_message); | |
548 | } | |
549 | ||
550 | /* Do a GPREL relocation. This is a 16 bit value which must become | |
551 | the offset from the gp register. */ | |
552 | ||
553 | static bfd_reloc_status_type | |
554 | mips_gprel_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
555 | arelent *reloc_entry, | |
556 | asymbol *symbol, | |
557 | void * data, | |
558 | asection *input_section, | |
559 | bfd *output_bfd, | |
560 | char **error_message ATTRIBUTE_UNUSED) | |
561 | { | |
562 | bfd_boolean relocatable; | |
563 | bfd_vma gp; | |
564 | bfd_vma relocation; | |
565 | unsigned long val; | |
566 | unsigned long insn; | |
567 | ||
568 | /* If we're relocating, and this is an external symbol with no | |
569 | addend, we don't want to change anything. We will only have an | |
570 | addend if this is a newly created reloc, not read from an ECOFF | |
571 | file. */ | |
572 | if (output_bfd != (bfd *) NULL | |
573 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
574 | && reloc_entry->addend == 0) | |
575 | { | |
576 | reloc_entry->address += input_section->output_offset; | |
577 | return bfd_reloc_ok; | |
578 | } | |
579 | ||
580 | if (output_bfd != (bfd *) NULL) | |
581 | relocatable = TRUE; | |
582 | else | |
583 | { | |
584 | relocatable = FALSE; | |
585 | output_bfd = symbol->section->output_section->owner; | |
586 | } | |
587 | ||
588 | if (bfd_is_und_section (symbol->section) && ! relocatable) | |
589 | return bfd_reloc_undefined; | |
590 | ||
591 | /* We have to figure out the gp value, so that we can adjust the | |
592 | symbol value correctly. We look up the symbol _gp in the output | |
593 | BFD. If we can't find it, we're stuck. We cache it in the ECOFF | |
594 | target data. We don't need to adjust the symbol value for an | |
595 | external symbol if we are producing relocatable output. */ | |
596 | gp = _bfd_get_gp_value (output_bfd); | |
597 | if (gp == 0 | |
598 | && (! relocatable | |
599 | || (symbol->flags & BSF_SECTION_SYM) != 0)) | |
600 | { | |
601 | if (relocatable) | |
602 | { | |
603 | /* Make up a value. */ | |
604 | gp = symbol->section->output_section->vma + 0x4000; | |
605 | _bfd_set_gp_value (output_bfd, gp); | |
606 | } | |
607 | else | |
608 | { | |
609 | unsigned int count; | |
610 | asymbol **sym; | |
611 | unsigned int i; | |
612 | ||
613 | count = bfd_get_symcount (output_bfd); | |
614 | sym = bfd_get_outsymbols (output_bfd); | |
615 | ||
616 | if (sym == (asymbol **) NULL) | |
617 | i = count; | |
618 | else | |
619 | { | |
620 | for (i = 0; i < count; i++, sym++) | |
621 | { | |
622 | register const char *name; | |
623 | ||
624 | name = bfd_asymbol_name (*sym); | |
625 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
626 | { | |
627 | gp = bfd_asymbol_value (*sym); | |
628 | _bfd_set_gp_value (output_bfd, gp); | |
629 | break; | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
634 | if (i >= count) | |
635 | { | |
636 | /* Only get the error once. */ | |
637 | gp = 4; | |
638 | _bfd_set_gp_value (output_bfd, gp); | |
639 | *error_message = | |
640 | (char *) _("GP relative relocation when _gp not defined"); | |
641 | return bfd_reloc_dangerous; | |
642 | } | |
643 | } | |
644 | } | |
645 | ||
646 | if (bfd_is_com_section (symbol->section)) | |
647 | relocation = 0; | |
648 | else | |
649 | relocation = symbol->value; | |
650 | ||
651 | relocation += symbol->section->output_section->vma; | |
652 | relocation += symbol->section->output_offset; | |
653 | ||
654 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
655 | return bfd_reloc_outofrange; | |
656 | ||
657 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
658 | ||
659 | /* Set val to the offset into the section or symbol. */ | |
660 | val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; | |
661 | if (val & 0x8000) | |
662 | val -= 0x10000; | |
663 | ||
664 | /* Adjust val for the final section location and GP value. If we | |
665 | are producing relocatable output, we don't want to do this for | |
666 | an external symbol. */ | |
667 | if (! relocatable | |
668 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
669 | val += relocation - gp; | |
670 | ||
671 | insn = (insn &~ (unsigned) 0xffff) | (val & 0xffff); | |
672 | bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + reloc_entry->address); | |
673 | ||
674 | if (relocatable) | |
675 | reloc_entry->address += input_section->output_offset; | |
676 | ||
677 | /* Make sure it fit in 16 bits. */ | |
678 | if ((long) val >= 0x8000 || (long) val < -0x8000) | |
679 | return bfd_reloc_overflow; | |
680 | ||
681 | return bfd_reloc_ok; | |
682 | } | |
683 | ||
684 | /* Get the howto structure for a generic reloc type. */ | |
685 | ||
686 | static reloc_howto_type * | |
687 | mips_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
688 | bfd_reloc_code_real_type code) | |
689 | { | |
690 | int mips_type; | |
691 | ||
692 | switch (code) | |
693 | { | |
694 | case BFD_RELOC_16: | |
695 | mips_type = MIPS_R_REFHALF; | |
696 | break; | |
697 | case BFD_RELOC_32: | |
698 | case BFD_RELOC_CTOR: | |
699 | mips_type = MIPS_R_REFWORD; | |
700 | break; | |
701 | case BFD_RELOC_MIPS_JMP: | |
702 | mips_type = MIPS_R_JMPADDR; | |
703 | break; | |
704 | case BFD_RELOC_HI16_S: | |
705 | mips_type = MIPS_R_REFHI; | |
706 | break; | |
707 | case BFD_RELOC_LO16: | |
708 | mips_type = MIPS_R_REFLO; | |
709 | break; | |
710 | case BFD_RELOC_GPREL16: | |
711 | mips_type = MIPS_R_GPREL; | |
712 | break; | |
713 | case BFD_RELOC_MIPS_LITERAL: | |
714 | mips_type = MIPS_R_LITERAL; | |
715 | break; | |
716 | case BFD_RELOC_16_PCREL_S2: | |
717 | mips_type = MIPS_R_PCREL16; | |
718 | break; | |
719 | default: | |
720 | return (reloc_howto_type *) NULL; | |
721 | } | |
722 | ||
723 | return &mips_howto_table[mips_type]; | |
724 | } | |
725 | ||
726 | static reloc_howto_type * | |
727 | mips_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
728 | const char *r_name) | |
729 | { | |
730 | unsigned int i; | |
731 | ||
732 | for (i = 0; | |
733 | i < sizeof (mips_howto_table) / sizeof (mips_howto_table[0]); | |
734 | i++) | |
735 | if (mips_howto_table[i].name != NULL | |
736 | && strcasecmp (mips_howto_table[i].name, r_name) == 0) | |
737 | return &mips_howto_table[i]; | |
738 | ||
739 | return NULL; | |
740 | } | |
741 | \f | |
742 | /* A helper routine for mips_relocate_section which handles the REFHI | |
743 | relocations. The REFHI relocation must be followed by a REFLO | |
744 | relocation, and the addend used is formed from the addends of both | |
745 | instructions. */ | |
746 | ||
747 | static void | |
748 | mips_relocate_hi (struct internal_reloc *refhi, | |
749 | struct internal_reloc *reflo, | |
750 | bfd *input_bfd, | |
751 | asection *input_section, | |
752 | bfd_byte *contents, | |
753 | bfd_vma relocation) | |
754 | { | |
755 | unsigned long insn; | |
756 | unsigned long val; | |
757 | unsigned long vallo; | |
758 | ||
759 | if (refhi == NULL) | |
760 | return; | |
761 | ||
762 | insn = bfd_get_32 (input_bfd, | |
763 | contents + refhi->r_vaddr - input_section->vma); | |
764 | if (reflo == NULL) | |
765 | vallo = 0; | |
766 | else | |
767 | vallo = (bfd_get_32 (input_bfd, | |
768 | contents + reflo->r_vaddr - input_section->vma) | |
769 | & 0xffff); | |
770 | ||
771 | val = ((insn & 0xffff) << 16) + vallo; | |
772 | val += relocation; | |
773 | ||
774 | /* The low order 16 bits are always treated as a signed value. | |
775 | Therefore, a negative value in the low order bits requires an | |
776 | adjustment in the high order bits. We need to make this | |
777 | adjustment in two ways: once for the bits we took from the data, | |
778 | and once for the bits we are putting back in to the data. */ | |
779 | if ((vallo & 0x8000) != 0) | |
780 | val -= 0x10000; | |
781 | ||
782 | if ((val & 0x8000) != 0) | |
783 | val += 0x10000; | |
784 | ||
785 | insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff); | |
786 | bfd_put_32 (input_bfd, (bfd_vma) insn, | |
787 | contents + refhi->r_vaddr - input_section->vma); | |
788 | } | |
789 | ||
790 | /* Relocate a section while linking a MIPS ECOFF file. */ | |
791 | ||
792 | static bfd_boolean | |
793 | mips_relocate_section (bfd *output_bfd, | |
794 | struct bfd_link_info *info, | |
795 | bfd *input_bfd, | |
796 | asection *input_section, | |
797 | bfd_byte *contents, | |
798 | void * external_relocs) | |
799 | { | |
800 | asection **symndx_to_section; | |
801 | struct ecoff_link_hash_entry **sym_hashes; | |
802 | bfd_vma gp; | |
803 | bfd_boolean gp_undefined; | |
804 | struct external_reloc *ext_rel; | |
805 | struct external_reloc *ext_rel_end; | |
806 | unsigned int i; | |
807 | bfd_boolean got_lo; | |
808 | struct internal_reloc lo_int_rel; | |
809 | bfd_size_type amt; | |
810 | ||
811 | BFD_ASSERT (input_bfd->xvec->byteorder | |
812 | == output_bfd->xvec->byteorder); | |
813 | ||
814 | /* We keep a table mapping the symndx found in an internal reloc to | |
815 | the appropriate section. This is faster than looking up the | |
816 | section by name each time. */ | |
817 | symndx_to_section = ecoff_data (input_bfd)->symndx_to_section; | |
818 | if (symndx_to_section == (asection **) NULL) | |
819 | { | |
820 | amt = NUM_RELOC_SECTIONS * sizeof (asection *); | |
821 | symndx_to_section = (asection **) bfd_alloc (input_bfd, amt); | |
822 | if (!symndx_to_section) | |
823 | return FALSE; | |
824 | ||
825 | symndx_to_section[RELOC_SECTION_NONE] = NULL; | |
826 | symndx_to_section[RELOC_SECTION_TEXT] = | |
827 | bfd_get_section_by_name (input_bfd, ".text"); | |
828 | symndx_to_section[RELOC_SECTION_RDATA] = | |
829 | bfd_get_section_by_name (input_bfd, ".rdata"); | |
830 | symndx_to_section[RELOC_SECTION_DATA] = | |
831 | bfd_get_section_by_name (input_bfd, ".data"); | |
832 | symndx_to_section[RELOC_SECTION_SDATA] = | |
833 | bfd_get_section_by_name (input_bfd, ".sdata"); | |
834 | symndx_to_section[RELOC_SECTION_SBSS] = | |
835 | bfd_get_section_by_name (input_bfd, ".sbss"); | |
836 | symndx_to_section[RELOC_SECTION_BSS] = | |
837 | bfd_get_section_by_name (input_bfd, ".bss"); | |
838 | symndx_to_section[RELOC_SECTION_INIT] = | |
839 | bfd_get_section_by_name (input_bfd, ".init"); | |
840 | symndx_to_section[RELOC_SECTION_LIT8] = | |
841 | bfd_get_section_by_name (input_bfd, ".lit8"); | |
842 | symndx_to_section[RELOC_SECTION_LIT4] = | |
843 | bfd_get_section_by_name (input_bfd, ".lit4"); | |
844 | symndx_to_section[RELOC_SECTION_XDATA] = NULL; | |
845 | symndx_to_section[RELOC_SECTION_PDATA] = NULL; | |
846 | symndx_to_section[RELOC_SECTION_FINI] = | |
847 | bfd_get_section_by_name (input_bfd, ".fini"); | |
848 | symndx_to_section[RELOC_SECTION_LITA] = NULL; | |
849 | symndx_to_section[RELOC_SECTION_ABS] = NULL; | |
850 | ||
851 | ecoff_data (input_bfd)->symndx_to_section = symndx_to_section; | |
852 | } | |
853 | ||
854 | sym_hashes = ecoff_data (input_bfd)->sym_hashes; | |
855 | ||
856 | gp = _bfd_get_gp_value (output_bfd); | |
857 | if (gp == 0) | |
858 | gp_undefined = TRUE; | |
859 | else | |
860 | gp_undefined = FALSE; | |
861 | ||
862 | got_lo = FALSE; | |
863 | ||
864 | ext_rel = (struct external_reloc *) external_relocs; | |
865 | ext_rel_end = ext_rel + input_section->reloc_count; | |
866 | for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++) | |
867 | { | |
868 | struct internal_reloc int_rel; | |
869 | bfd_boolean use_lo = FALSE; | |
870 | bfd_vma addend; | |
871 | reloc_howto_type *howto; | |
872 | struct ecoff_link_hash_entry *h = NULL; | |
873 | asection *s = NULL; | |
874 | bfd_vma relocation; | |
875 | bfd_reloc_status_type r; | |
876 | ||
877 | if (! got_lo) | |
878 | mips_ecoff_swap_reloc_in (input_bfd, ext_rel, &int_rel); | |
879 | else | |
880 | { | |
881 | int_rel = lo_int_rel; | |
882 | got_lo = FALSE; | |
883 | } | |
884 | ||
885 | BFD_ASSERT (int_rel.r_type | |
886 | < sizeof mips_howto_table / sizeof mips_howto_table[0]); | |
887 | ||
888 | /* The REFHI reloc requires special handling. It must be followed | |
889 | by a REFLO reloc, and the addend is formed from both relocs. */ | |
890 | if (int_rel.r_type == MIPS_R_REFHI) | |
891 | { | |
892 | struct external_reloc *lo_ext_rel; | |
893 | ||
894 | /* As a GNU extension, permit an arbitrary number of REFHI | |
895 | relocs before the REFLO reloc. This permits gcc to emit | |
896 | the HI and LO relocs itself. */ | |
897 | for (lo_ext_rel = ext_rel + 1; | |
898 | lo_ext_rel < ext_rel_end; | |
899 | lo_ext_rel++) | |
900 | { | |
901 | mips_ecoff_swap_reloc_in (input_bfd, lo_ext_rel, | |
902 | &lo_int_rel); | |
903 | if (lo_int_rel.r_type != int_rel.r_type) | |
904 | break; | |
905 | } | |
906 | ||
907 | if (lo_ext_rel < ext_rel_end | |
908 | && lo_int_rel.r_type == MIPS_R_REFLO | |
909 | && int_rel.r_extern == lo_int_rel.r_extern | |
910 | && int_rel.r_symndx == lo_int_rel.r_symndx) | |
911 | { | |
912 | use_lo = TRUE; | |
913 | if (lo_ext_rel == ext_rel + 1) | |
914 | got_lo = TRUE; | |
915 | } | |
916 | } | |
917 | ||
918 | howto = &mips_howto_table[int_rel.r_type]; | |
919 | ||
920 | if (int_rel.r_extern) | |
921 | { | |
922 | h = sym_hashes[int_rel.r_symndx]; | |
923 | /* If h is NULL, that means that there is a reloc against an | |
924 | external symbol which we thought was just a debugging | |
925 | symbol. This should not happen. */ | |
926 | if (h == (struct ecoff_link_hash_entry *) NULL) | |
927 | abort (); | |
928 | } | |
929 | else | |
930 | { | |
931 | if (int_rel.r_symndx < 0 || int_rel.r_symndx >= NUM_RELOC_SECTIONS) | |
932 | s = NULL; | |
933 | else | |
934 | s = symndx_to_section[int_rel.r_symndx]; | |
935 | ||
936 | if (s == (asection *) NULL) | |
937 | abort (); | |
938 | } | |
939 | ||
940 | /* The GPREL reloc uses an addend: the difference in the GP | |
941 | values. */ | |
942 | if (int_rel.r_type != MIPS_R_GPREL | |
943 | && int_rel.r_type != MIPS_R_LITERAL) | |
944 | addend = 0; | |
945 | else | |
946 | { | |
947 | if (gp_undefined) | |
948 | { | |
949 | (*info->callbacks->reloc_dangerous) | |
950 | (info, _("GP relative relocation used when GP not defined"), | |
951 | input_bfd, input_section, | |
952 | int_rel.r_vaddr - input_section->vma); | |
953 | /* Only give the error once per link. */ | |
954 | gp = 4; | |
955 | _bfd_set_gp_value (output_bfd, gp); | |
956 | gp_undefined = FALSE; | |
957 | } | |
958 | if (! int_rel.r_extern) | |
959 | { | |
960 | /* This is a relocation against a section. The current | |
961 | addend in the instruction is the difference between | |
962 | INPUT_SECTION->vma and the GP value of INPUT_BFD. We | |
963 | must change this to be the difference between the | |
964 | final definition (which will end up in RELOCATION) | |
965 | and the GP value of OUTPUT_BFD (which is in GP). */ | |
966 | addend = ecoff_data (input_bfd)->gp - gp; | |
967 | } | |
968 | else if (! bfd_link_relocatable (info) | |
969 | || h->root.type == bfd_link_hash_defined | |
970 | || h->root.type == bfd_link_hash_defweak) | |
971 | { | |
972 | /* This is a relocation against a defined symbol. The | |
973 | current addend in the instruction is simply the | |
974 | desired offset into the symbol (normally zero). We | |
975 | are going to change this into a relocation against a | |
976 | defined symbol, so we want the instruction to hold | |
977 | the difference between the final definition of the | |
978 | symbol (which will end up in RELOCATION) and the GP | |
979 | value of OUTPUT_BFD (which is in GP). */ | |
980 | addend = - gp; | |
981 | } | |
982 | else | |
983 | { | |
984 | /* This is a relocation against an undefined or common | |
985 | symbol. The current addend in the instruction is | |
986 | simply the desired offset into the symbol (normally | |
987 | zero). We are generating relocatable output, and we | |
988 | aren't going to define this symbol, so we just leave | |
989 | the instruction alone. */ | |
990 | addend = 0; | |
991 | } | |
992 | } | |
993 | ||
994 | if (bfd_link_relocatable (info)) | |
995 | { | |
996 | /* We are generating relocatable output, and must convert | |
997 | the existing reloc. */ | |
998 | if (int_rel.r_extern) | |
999 | { | |
1000 | if ((h->root.type == bfd_link_hash_defined | |
1001 | || h->root.type == bfd_link_hash_defweak) | |
1002 | && ! bfd_is_abs_section (h->root.u.def.section)) | |
1003 | { | |
1004 | const char *name; | |
1005 | ||
1006 | /* This symbol is defined in the output. Convert | |
1007 | the reloc from being against the symbol to being | |
1008 | against the section. */ | |
1009 | ||
1010 | /* Clear the r_extern bit. */ | |
1011 | int_rel.r_extern = 0; | |
1012 | ||
1013 | /* Compute a new r_symndx value. */ | |
1014 | s = h->root.u.def.section; | |
1015 | name = bfd_get_section_name (output_bfd, | |
1016 | s->output_section); | |
1017 | ||
1018 | int_rel.r_symndx = -1; | |
1019 | switch (name[1]) | |
1020 | { | |
1021 | case 'b': | |
1022 | if (strcmp (name, ".bss") == 0) | |
1023 | int_rel.r_symndx = RELOC_SECTION_BSS; | |
1024 | break; | |
1025 | case 'd': | |
1026 | if (strcmp (name, ".data") == 0) | |
1027 | int_rel.r_symndx = RELOC_SECTION_DATA; | |
1028 | break; | |
1029 | case 'f': | |
1030 | if (strcmp (name, ".fini") == 0) | |
1031 | int_rel.r_symndx = RELOC_SECTION_FINI; | |
1032 | break; | |
1033 | case 'i': | |
1034 | if (strcmp (name, ".init") == 0) | |
1035 | int_rel.r_symndx = RELOC_SECTION_INIT; | |
1036 | break; | |
1037 | case 'l': | |
1038 | if (strcmp (name, ".lit8") == 0) | |
1039 | int_rel.r_symndx = RELOC_SECTION_LIT8; | |
1040 | else if (strcmp (name, ".lit4") == 0) | |
1041 | int_rel.r_symndx = RELOC_SECTION_LIT4; | |
1042 | break; | |
1043 | case 'r': | |
1044 | if (strcmp (name, ".rdata") == 0) | |
1045 | int_rel.r_symndx = RELOC_SECTION_RDATA; | |
1046 | break; | |
1047 | case 's': | |
1048 | if (strcmp (name, ".sdata") == 0) | |
1049 | int_rel.r_symndx = RELOC_SECTION_SDATA; | |
1050 | else if (strcmp (name, ".sbss") == 0) | |
1051 | int_rel.r_symndx = RELOC_SECTION_SBSS; | |
1052 | break; | |
1053 | case 't': | |
1054 | if (strcmp (name, ".text") == 0) | |
1055 | int_rel.r_symndx = RELOC_SECTION_TEXT; | |
1056 | break; | |
1057 | } | |
1058 | ||
1059 | if (int_rel.r_symndx == -1) | |
1060 | abort (); | |
1061 | ||
1062 | /* Add the section VMA and the symbol value. */ | |
1063 | relocation = (h->root.u.def.value | |
1064 | + s->output_section->vma | |
1065 | + s->output_offset); | |
1066 | ||
1067 | /* For a PC relative relocation, the object file | |
1068 | currently holds just the addend. We must adjust | |
1069 | by the address to get the right value. */ | |
1070 | if (howto->pc_relative) | |
1071 | relocation -= int_rel.r_vaddr - input_section->vma; | |
1072 | ||
1073 | h = NULL; | |
1074 | } | |
1075 | else | |
1076 | { | |
1077 | /* Change the symndx value to the right one for the | |
1078 | output BFD. */ | |
1079 | int_rel.r_symndx = h->indx; | |
1080 | if (int_rel.r_symndx == -1) | |
1081 | { | |
1082 | /* This symbol is not being written out. */ | |
1083 | (*info->callbacks->unattached_reloc) | |
1084 | (info, h->root.root.string, input_bfd, input_section, | |
1085 | int_rel.r_vaddr - input_section->vma); | |
1086 | int_rel.r_symndx = 0; | |
1087 | } | |
1088 | relocation = 0; | |
1089 | } | |
1090 | } | |
1091 | else | |
1092 | { | |
1093 | /* This is a relocation against a section. Adjust the | |
1094 | value by the amount the section moved. */ | |
1095 | relocation = (s->output_section->vma | |
1096 | + s->output_offset | |
1097 | - s->vma); | |
1098 | } | |
1099 | ||
1100 | relocation += addend; | |
1101 | addend = 0; | |
1102 | ||
1103 | /* Adjust a PC relative relocation by removing the reference | |
1104 | to the original address in the section and including the | |
1105 | reference to the new address. */ | |
1106 | if (howto->pc_relative) | |
1107 | relocation -= (input_section->output_section->vma | |
1108 | + input_section->output_offset | |
1109 | - input_section->vma); | |
1110 | ||
1111 | /* Adjust the contents. */ | |
1112 | if (relocation == 0) | |
1113 | r = bfd_reloc_ok; | |
1114 | else | |
1115 | { | |
1116 | if (int_rel.r_type != MIPS_R_REFHI) | |
1117 | r = _bfd_relocate_contents (howto, input_bfd, relocation, | |
1118 | (contents | |
1119 | + int_rel.r_vaddr | |
1120 | - input_section->vma)); | |
1121 | else | |
1122 | { | |
1123 | mips_relocate_hi (&int_rel, | |
1124 | use_lo ? &lo_int_rel : NULL, | |
1125 | input_bfd, input_section, contents, | |
1126 | relocation); | |
1127 | r = bfd_reloc_ok; | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | /* Adjust the reloc address. */ | |
1132 | int_rel.r_vaddr += (input_section->output_section->vma | |
1133 | + input_section->output_offset | |
1134 | - input_section->vma); | |
1135 | ||
1136 | /* Save the changed reloc information. */ | |
1137 | mips_ecoff_swap_reloc_out (input_bfd, &int_rel, ext_rel); | |
1138 | } | |
1139 | else | |
1140 | { | |
1141 | /* We are producing a final executable. */ | |
1142 | if (int_rel.r_extern) | |
1143 | { | |
1144 | /* This is a reloc against a symbol. */ | |
1145 | if (h->root.type == bfd_link_hash_defined | |
1146 | || h->root.type == bfd_link_hash_defweak) | |
1147 | { | |
1148 | asection *hsec; | |
1149 | ||
1150 | hsec = h->root.u.def.section; | |
1151 | relocation = (h->root.u.def.value | |
1152 | + hsec->output_section->vma | |
1153 | + hsec->output_offset); | |
1154 | } | |
1155 | else | |
1156 | { | |
1157 | (*info->callbacks->undefined_symbol) | |
1158 | (info, h->root.root.string, input_bfd, input_section, | |
1159 | int_rel.r_vaddr - input_section->vma, TRUE); | |
1160 | relocation = 0; | |
1161 | } | |
1162 | } | |
1163 | else | |
1164 | { | |
1165 | /* This is a reloc against a section. */ | |
1166 | relocation = (s->output_section->vma | |
1167 | + s->output_offset | |
1168 | - s->vma); | |
1169 | ||
1170 | /* A PC relative reloc is already correct in the object | |
1171 | file. Make it look like a pcrel_offset relocation by | |
1172 | adding in the start address. */ | |
1173 | if (howto->pc_relative) | |
1174 | relocation += int_rel.r_vaddr; | |
1175 | } | |
1176 | ||
1177 | if (int_rel.r_type != MIPS_R_REFHI) | |
1178 | r = _bfd_final_link_relocate (howto, | |
1179 | input_bfd, | |
1180 | input_section, | |
1181 | contents, | |
1182 | (int_rel.r_vaddr | |
1183 | - input_section->vma), | |
1184 | relocation, | |
1185 | addend); | |
1186 | else | |
1187 | { | |
1188 | mips_relocate_hi (&int_rel, | |
1189 | use_lo ? &lo_int_rel : NULL, | |
1190 | input_bfd, input_section, contents, | |
1191 | relocation); | |
1192 | r = bfd_reloc_ok; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | /* MIPS_R_JMPADDR requires peculiar overflow detection. The | |
1197 | instruction provides a 28 bit address (the two lower bits are | |
1198 | implicit zeroes) which is combined with the upper four bits | |
1199 | of the instruction address. */ | |
1200 | if (r == bfd_reloc_ok | |
1201 | && int_rel.r_type == MIPS_R_JMPADDR | |
1202 | && (((relocation | |
1203 | + addend | |
1204 | + (int_rel.r_extern ? 0 : s->vma)) | |
1205 | & 0xf0000000) | |
1206 | != ((input_section->output_section->vma | |
1207 | + input_section->output_offset | |
1208 | + (int_rel.r_vaddr - input_section->vma)) | |
1209 | & 0xf0000000))) | |
1210 | r = bfd_reloc_overflow; | |
1211 | ||
1212 | if (r != bfd_reloc_ok) | |
1213 | { | |
1214 | switch (r) | |
1215 | { | |
1216 | default: | |
1217 | case bfd_reloc_outofrange: | |
1218 | abort (); | |
1219 | case bfd_reloc_overflow: | |
1220 | { | |
1221 | const char *name; | |
1222 | ||
1223 | if (int_rel.r_extern) | |
1224 | name = NULL; | |
1225 | else | |
1226 | name = bfd_section_name (input_bfd, s); | |
1227 | (*info->callbacks->reloc_overflow) | |
1228 | (info, (h ? &h->root : NULL), name, howto->name, | |
1229 | (bfd_vma) 0, input_bfd, input_section, | |
1230 | int_rel.r_vaddr - input_section->vma); | |
1231 | } | |
1232 | break; | |
1233 | } | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | return TRUE; | |
1238 | } | |
1239 | ||
1240 | static void | |
1241 | mips_ecoff_swap_coff_aux_in (bfd *abfd ATTRIBUTE_UNUSED, | |
1242 | void *ext1 ATTRIBUTE_UNUSED, | |
1243 | int type ATTRIBUTE_UNUSED, | |
1244 | int in_class ATTRIBUTE_UNUSED, | |
1245 | int indx ATTRIBUTE_UNUSED, | |
1246 | int numaux ATTRIBUTE_UNUSED, | |
1247 | void *in1 ATTRIBUTE_UNUSED) | |
1248 | { | |
1249 | } | |
1250 | ||
1251 | static void | |
1252 | mips_ecoff_swap_coff_sym_in (bfd *abfd ATTRIBUTE_UNUSED, | |
1253 | void *ext1 ATTRIBUTE_UNUSED, | |
1254 | void *in1 ATTRIBUTE_UNUSED) | |
1255 | { | |
1256 | } | |
1257 | ||
1258 | static void | |
1259 | mips_ecoff_swap_coff_lineno_in (bfd *abfd ATTRIBUTE_UNUSED, | |
1260 | void *ext1 ATTRIBUTE_UNUSED, | |
1261 | void *in1 ATTRIBUTE_UNUSED) | |
1262 | { | |
1263 | } | |
1264 | ||
1265 | static unsigned int | |
1266 | mips_ecoff_swap_coff_aux_out (bfd *abfd ATTRIBUTE_UNUSED, | |
1267 | void *inp ATTRIBUTE_UNUSED, | |
1268 | int type ATTRIBUTE_UNUSED, | |
1269 | int in_class ATTRIBUTE_UNUSED, | |
1270 | int indx ATTRIBUTE_UNUSED, | |
1271 | int numaux ATTRIBUTE_UNUSED, | |
1272 | void *extp ATTRIBUTE_UNUSED) | |
1273 | { | |
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | static unsigned int | |
1278 | mips_ecoff_swap_coff_sym_out (bfd *abfd ATTRIBUTE_UNUSED, | |
1279 | void *inp ATTRIBUTE_UNUSED, | |
1280 | void *extp ATTRIBUTE_UNUSED) | |
1281 | { | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | static unsigned int | |
1286 | mips_ecoff_swap_coff_lineno_out (bfd *abfd ATTRIBUTE_UNUSED, | |
1287 | void *inp ATTRIBUTE_UNUSED, | |
1288 | void *extp ATTRIBUTE_UNUSED) | |
1289 | { | |
1290 | return 0; | |
1291 | } | |
1292 | ||
1293 | static unsigned int | |
1294 | mips_ecoff_swap_coff_reloc_out (bfd *abfd ATTRIBUTE_UNUSED, | |
1295 | void *inp ATTRIBUTE_UNUSED, | |
1296 | void *extp ATTRIBUTE_UNUSED) | |
1297 | { | |
1298 | return 0; | |
1299 | } | |
1300 | \f | |
1301 | /* This is the ECOFF backend structure. The backend field of the | |
1302 | target vector points to this. */ | |
1303 | ||
1304 | static const struct ecoff_backend_data mips_ecoff_backend_data = | |
1305 | { | |
1306 | /* COFF backend structure. */ | |
1307 | { | |
1308 | mips_ecoff_swap_coff_aux_in, mips_ecoff_swap_coff_sym_in, | |
1309 | mips_ecoff_swap_coff_lineno_in, mips_ecoff_swap_coff_aux_out, | |
1310 | mips_ecoff_swap_coff_sym_out, mips_ecoff_swap_coff_lineno_out, | |
1311 | mips_ecoff_swap_coff_reloc_out, | |
1312 | mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out, | |
1313 | mips_ecoff_swap_scnhdr_out, | |
1314 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, FILNMLEN, TRUE, | |
1315 | ECOFF_NO_LONG_SECTION_NAMES, 4, FALSE, 2, 32768, | |
1316 | mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in, | |
1317 | mips_ecoff_swap_scnhdr_in, NULL, | |
1318 | mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, | |
1319 | _bfd_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags, | |
1320 | _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table, | |
1321 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, | |
1322 | NULL, NULL, NULL | |
1323 | }, | |
1324 | /* Supported architecture. */ | |
1325 | bfd_arch_mips, | |
1326 | /* Initial portion of armap string. */ | |
1327 | "__________", | |
1328 | /* The page boundary used to align sections in a demand-paged | |
1329 | executable file. E.g., 0x1000. */ | |
1330 | 0x1000, | |
1331 | /* TRUE if the .rdata section is part of the text segment, as on the | |
1332 | Alpha. FALSE if .rdata is part of the data segment, as on the | |
1333 | MIPS. */ | |
1334 | FALSE, | |
1335 | /* Bitsize of constructor entries. */ | |
1336 | 32, | |
1337 | /* Reloc to use for constructor entries. */ | |
1338 | &mips_howto_table[MIPS_R_REFWORD], | |
1339 | { | |
1340 | /* Symbol table magic number. */ | |
1341 | magicSym, | |
1342 | /* Alignment of debugging information. E.g., 4. */ | |
1343 | 4, | |
1344 | /* Sizes of external symbolic information. */ | |
1345 | sizeof (struct hdr_ext), | |
1346 | sizeof (struct dnr_ext), | |
1347 | sizeof (struct pdr_ext), | |
1348 | sizeof (struct sym_ext), | |
1349 | sizeof (struct opt_ext), | |
1350 | sizeof (struct fdr_ext), | |
1351 | sizeof (struct rfd_ext), | |
1352 | sizeof (struct ext_ext), | |
1353 | /* Functions to swap in external symbolic data. */ | |
1354 | ecoff_swap_hdr_in, | |
1355 | ecoff_swap_dnr_in, | |
1356 | ecoff_swap_pdr_in, | |
1357 | ecoff_swap_sym_in, | |
1358 | ecoff_swap_opt_in, | |
1359 | ecoff_swap_fdr_in, | |
1360 | ecoff_swap_rfd_in, | |
1361 | ecoff_swap_ext_in, | |
1362 | _bfd_ecoff_swap_tir_in, | |
1363 | _bfd_ecoff_swap_rndx_in, | |
1364 | /* Functions to swap out external symbolic data. */ | |
1365 | ecoff_swap_hdr_out, | |
1366 | ecoff_swap_dnr_out, | |
1367 | ecoff_swap_pdr_out, | |
1368 | ecoff_swap_sym_out, | |
1369 | ecoff_swap_opt_out, | |
1370 | ecoff_swap_fdr_out, | |
1371 | ecoff_swap_rfd_out, | |
1372 | ecoff_swap_ext_out, | |
1373 | _bfd_ecoff_swap_tir_out, | |
1374 | _bfd_ecoff_swap_rndx_out, | |
1375 | /* Function to read in symbolic data. */ | |
1376 | _bfd_ecoff_slurp_symbolic_info | |
1377 | }, | |
1378 | /* External reloc size. */ | |
1379 | RELSZ, | |
1380 | /* Reloc swapping functions. */ | |
1381 | mips_ecoff_swap_reloc_in, | |
1382 | mips_ecoff_swap_reloc_out, | |
1383 | /* Backend reloc tweaking. */ | |
1384 | mips_adjust_reloc_in, | |
1385 | mips_adjust_reloc_out, | |
1386 | /* Relocate section contents while linking. */ | |
1387 | mips_relocate_section, | |
1388 | /* Do final adjustments to filehdr and aouthdr. */ | |
1389 | NULL, | |
1390 | /* Read an element from an archive at a given file position. */ | |
1391 | _bfd_get_elt_at_filepos | |
1392 | }; | |
1393 | ||
1394 | /* Looking up a reloc type is MIPS specific. */ | |
1395 | #define _bfd_ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup | |
1396 | #define _bfd_ecoff_bfd_reloc_name_lookup mips_bfd_reloc_name_lookup | |
1397 | ||
1398 | /* Getting relocated section contents is generic. */ | |
1399 | #define _bfd_ecoff_bfd_get_relocated_section_contents \ | |
1400 | bfd_generic_get_relocated_section_contents | |
1401 | ||
1402 | /* Handling file windows is generic. */ | |
1403 | #define _bfd_ecoff_get_section_contents_in_window \ | |
1404 | _bfd_generic_get_section_contents_in_window | |
1405 | ||
1406 | /* Relaxing sections is MIPS specific. */ | |
1407 | #define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section | |
1408 | ||
1409 | /* GC of sections is not done. */ | |
1410 | #define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections | |
1411 | ||
1412 | /* Input section flags is not implemented. */ | |
1413 | #define _bfd_ecoff_bfd_lookup_section_flags bfd_generic_lookup_section_flags | |
1414 | ||
1415 | /* Merging of sections is not done. */ | |
1416 | #define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections | |
1417 | ||
1418 | #define _bfd_ecoff_bfd_is_group_section bfd_generic_is_group_section | |
1419 | #define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group | |
1420 | #define _bfd_ecoff_section_already_linked \ | |
1421 | _bfd_coff_section_already_linked | |
1422 | #define _bfd_ecoff_bfd_define_common_symbol bfd_generic_define_common_symbol | |
34a87bb0 | 1423 | #define _bfd_ecoff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
8e415ce8 AM |
1424 | #define _bfd_ecoff_bfd_define_start_stop bfd_generic_define_start_stop |
1425 | #define _bfd_ecoff_set_reloc _bfd_generic_set_reloc | |
1426 | ||
1427 | extern const bfd_target mips_ecoff_be_vec; | |
1428 | ||
1429 | const bfd_target mips_ecoff_le_vec = | |
1430 | { | |
1431 | "ecoff-littlemips", /* name */ | |
1432 | bfd_target_ecoff_flavour, | |
1433 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
1434 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
1435 | ||
1436 | (HAS_RELOC | EXEC_P /* object flags */ | |
1437 | | HAS_LINENO | HAS_DEBUG | |
1438 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
1439 | ||
1440 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
1441 | 0, /* leading underscore */ | |
1442 | ' ', /* ar_pad_char */ | |
1443 | 15, /* ar_max_namelen */ | |
1444 | 0, /* match priority. */ | |
1445 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
1446 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
1447 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
1448 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
1449 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
1450 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
1451 | ||
1452 | { /* bfd_check_format */ | |
1453 | _bfd_dummy_target, | |
1454 | coff_object_p, | |
1455 | bfd_generic_archive_p, | |
1456 | _bfd_dummy_target | |
1457 | }, | |
1458 | { /* bfd_set_format */ | |
1459 | _bfd_bool_bfd_false_error, | |
1460 | _bfd_ecoff_mkobject, | |
1461 | _bfd_generic_mkarchive, | |
1462 | _bfd_bool_bfd_false_error | |
1463 | }, | |
1464 | { /* bfd_write_contents */ | |
1465 | _bfd_bool_bfd_false_error, | |
1466 | _bfd_ecoff_write_object_contents, | |
1467 | _bfd_write_archive_contents, | |
1468 | _bfd_bool_bfd_false_error | |
1469 | }, | |
1470 | ||
1471 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), | |
1472 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), | |
1473 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
1474 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), | |
1475 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), | |
1476 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), | |
1477 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), | |
1478 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), | |
1479 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
1480 | ||
1481 | &mips_ecoff_be_vec, | |
1482 | ||
1483 | &mips_ecoff_backend_data | |
1484 | }; | |
1485 | ||
1486 | const bfd_target mips_ecoff_be_vec = | |
1487 | { | |
1488 | "ecoff-bigmips", /* name */ | |
1489 | bfd_target_ecoff_flavour, | |
1490 | BFD_ENDIAN_BIG, /* data byte order is big */ | |
1491 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
1492 | ||
1493 | (HAS_RELOC | EXEC_P /* object flags */ | |
1494 | | HAS_LINENO | HAS_DEBUG | |
1495 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
1496 | ||
1497 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
1498 | 0, /* leading underscore */ | |
1499 | ' ', /* ar_pad_char */ | |
1500 | 15, /* ar_max_namelen */ | |
1501 | 0, /* match priority. */ | |
1502 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
1503 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
1504 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, | |
1505 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
1506 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
1507 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, | |
1508 | ||
1509 | { /* bfd_check_format */ | |
1510 | _bfd_dummy_target, | |
1511 | coff_object_p, | |
1512 | bfd_generic_archive_p, | |
1513 | _bfd_dummy_target | |
1514 | }, | |
1515 | { /* bfd_set_format */ | |
1516 | _bfd_bool_bfd_false_error, | |
1517 | _bfd_ecoff_mkobject, | |
1518 | _bfd_generic_mkarchive, | |
1519 | _bfd_bool_bfd_false_error | |
1520 | }, | |
1521 | { /* bfd_write_contents */ | |
1522 | _bfd_bool_bfd_false_error, | |
1523 | _bfd_ecoff_write_object_contents, | |
1524 | _bfd_write_archive_contents, | |
1525 | _bfd_bool_bfd_false_error | |
1526 | }, | |
1527 | ||
1528 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), | |
1529 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), | |
1530 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
1531 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), | |
1532 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), | |
1533 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), | |
1534 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), | |
1535 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), | |
1536 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
1537 | ||
1538 | &mips_ecoff_le_vec, | |
1539 | ||
1540 | &mips_ecoff_backend_data | |
1541 | }; | |
1542 | ||
1543 | const bfd_target mips_ecoff_bele_vec = | |
1544 | { | |
1545 | "ecoff-biglittlemips", /* name */ | |
1546 | bfd_target_ecoff_flavour, | |
1547 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
1548 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
1549 | ||
1550 | (HAS_RELOC | EXEC_P /* object flags */ | |
1551 | | HAS_LINENO | HAS_DEBUG | |
1552 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
1553 | ||
1554 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), | |
1555 | 0, /* leading underscore */ | |
1556 | ' ', /* ar_pad_char */ | |
1557 | 15, /* ar_max_namelen */ | |
1558 | 0, /* match priority. */ | |
1559 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
1560 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
1561 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
1562 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
1563 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
1564 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
1565 | ||
1566 | { /* bfd_check_format */ | |
1567 | _bfd_dummy_target, | |
1568 | coff_object_p, | |
1569 | bfd_generic_archive_p, | |
1570 | _bfd_dummy_target | |
1571 | }, | |
1572 | { /* bfd_set_format */ | |
1573 | _bfd_bool_bfd_false_error, | |
1574 | _bfd_ecoff_mkobject, | |
1575 | _bfd_generic_mkarchive, | |
1576 | _bfd_bool_bfd_false_error | |
1577 | }, | |
1578 | { /* bfd_write_contents */ | |
1579 | _bfd_bool_bfd_false_error, | |
1580 | _bfd_ecoff_write_object_contents, | |
1581 | _bfd_write_archive_contents, | |
1582 | _bfd_bool_bfd_false_error | |
1583 | }, | |
1584 | ||
1585 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), | |
1586 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), | |
1587 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
1588 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), | |
1589 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), | |
1590 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), | |
1591 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), | |
1592 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), | |
1593 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
1594 | ||
1595 | NULL, | |
1596 | ||
1597 | &mips_ecoff_backend_data | |
1598 | }; |